diff options
Diffstat (limited to 'drivers/usb')
147 files changed, 6705 insertions, 5739 deletions
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig index 15499b7e33f4..7580aa5da0f8 100644 --- a/drivers/usb/Kconfig +++ b/drivers/usb/Kconfig @@ -2,8 +2,15 @@ # USB device configuration # -menu "USB support" +menuconfig USB_SUPPORT + bool "USB support" depends on HAS_IOMEM + default y + ---help--- + This option adds core support for Universal Serial Bus (USB). + You will also need drivers from the following menu to make use of it. + +if USB_SUPPORT # Host-side USB depends on having a host controller # NOTE: dummy_hcd is always an option, but it's ignored here ... @@ -12,7 +19,9 @@ config USB_ARCH_HAS_HCD boolean default y if USB_ARCH_HAS_OHCI default y if USB_ARCH_HAS_EHCI + default y if PCMCIA && !M32R # sl811_cs default y if ARM # SL-811 + default y if SUPERH # r8a66597-hcd default PCI # many non-PCI SOC chips embed OHCI @@ -130,5 +139,4 @@ source "drivers/usb/atm/Kconfig" source "drivers/usb/gadget/Kconfig" -endmenu - +endif # USB_SUPPORT diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile index 15b39f4c8ecc..549a14823da8 100644 --- a/drivers/usb/Makefile +++ b/drivers/usb/Makefile @@ -15,7 +15,7 @@ obj-$(CONFIG_USB_OHCI_HCD) += host/ obj-$(CONFIG_USB_UHCI_HCD) += host/ obj-$(CONFIG_USB_SL811_HCD) += host/ obj-$(CONFIG_USB_U132_HCD) += host/ -obj-$(CONFIG_USB_OHCI_AT91) += host/ +obj-$(CONFIG_USB_R8A66597_HCD) += host/ obj-$(CONFIG_USB_ACM) += class/ obj-$(CONFIG_USB_PRINTER) += class/ @@ -48,6 +48,7 @@ obj-$(CONFIG_USB_SISUSBVGA) += misc/ obj-$(CONFIG_USB_TEST) += misc/ obj-$(CONFIG_USB_TRANCEVIBRATOR)+= misc/ obj-$(CONFIG_USB_USS720) += misc/ +obj-$(CONFIG_USB_IOWARRIOR) += misc/ obj-$(CONFIG_USB_ATM) += atm/ obj-$(CONFIG_USB_SPEEDTOUCH) += atm/ diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c index 8bcf7fe1dd80..a73e714288e5 100644 --- a/drivers/usb/atm/cxacru.c +++ b/drivers/usb/atm/cxacru.c @@ -171,7 +171,7 @@ struct cxacru_data { struct delayed_work poll_work; u32 card_info[CXINF_MAX]; struct mutex poll_state_serialize; - int poll_state; + enum cxacru_poll_state poll_state; /* contol handles */ struct mutex cm_serialize; @@ -226,58 +226,48 @@ static ssize_t cxacru_sysfs_showattr_s8(s8 value, char *buf) static ssize_t cxacru_sysfs_showattr_dB(s16 value, char *buf) { - if (unlikely(value < 0)) { - return snprintf(buf, PAGE_SIZE, "%d.%02u\n", - value / 100, -value % 100); - } else { - return snprintf(buf, PAGE_SIZE, "%d.%02u\n", - value / 100, value % 100); - } + return snprintf(buf, PAGE_SIZE, "%d.%02u\n", + value / 100, abs(value) % 100); } static ssize_t cxacru_sysfs_showattr_bool(u32 value, char *buf) { - switch (value) { - case 0: return snprintf(buf, PAGE_SIZE, "no\n"); - case 1: return snprintf(buf, PAGE_SIZE, "yes\n"); - default: return 0; - } + static char *str[] = { "no", "yes" }; + if (unlikely(value >= ARRAY_SIZE(str))) + return snprintf(buf, PAGE_SIZE, "%u\n", value); + return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); } static ssize_t cxacru_sysfs_showattr_LINK(u32 value, char *buf) { - switch (value) { - case 1: return snprintf(buf, PAGE_SIZE, "not connected\n"); - case 2: return snprintf(buf, PAGE_SIZE, "connected\n"); - case 3: return snprintf(buf, PAGE_SIZE, "lost\n"); - default: return snprintf(buf, PAGE_SIZE, "unknown (%u)\n", value); - } + static char *str[] = { NULL, "not connected", "connected", "lost" }; + if (unlikely(value >= ARRAY_SIZE(str) || str[value] == NULL)) + return snprintf(buf, PAGE_SIZE, "%u\n", value); + return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); } static ssize_t cxacru_sysfs_showattr_LINE(u32 value, char *buf) { - switch (value) { - case 0: return snprintf(buf, PAGE_SIZE, "down\n"); - case 1: return snprintf(buf, PAGE_SIZE, "attempting to activate\n"); - case 2: return snprintf(buf, PAGE_SIZE, "training\n"); - case 3: return snprintf(buf, PAGE_SIZE, "channel analysis\n"); - case 4: return snprintf(buf, PAGE_SIZE, "exchange\n"); - case 5: return snprintf(buf, PAGE_SIZE, "up\n"); - case 6: return snprintf(buf, PAGE_SIZE, "waiting\n"); - case 7: return snprintf(buf, PAGE_SIZE, "initialising\n"); - default: return snprintf(buf, PAGE_SIZE, "unknown (%u)\n", value); - } + static char *str[] = { "down", "attempting to activate", + "training", "channel analysis", "exchange", "up", + "waiting", "initialising" + }; + if (unlikely(value >= ARRAY_SIZE(str))) + return snprintf(buf, PAGE_SIZE, "%u\n", value); + return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); } static ssize_t cxacru_sysfs_showattr_MODU(u32 value, char *buf) { - switch (value) { - case 0: return 0; - case 1: return snprintf(buf, PAGE_SIZE, "ANSI T1.413\n"); - case 2: return snprintf(buf, PAGE_SIZE, "ITU-T G.992.1 (G.DMT)\n"); - case 3: return snprintf(buf, PAGE_SIZE, "ITU-T G.992.2 (G.LITE)\n"); - default: return snprintf(buf, PAGE_SIZE, "unknown (%u)\n", value); - } + static char *str[] = { + NULL, + "ANSI T1.413", + "ITU-T G.992.1 (G.DMT)", + "ITU-T G.992.2 (G.LITE)" + }; + if (unlikely(value >= ARRAY_SIZE(str) || str[value] == NULL)) + return snprintf(buf, PAGE_SIZE, "%u\n", value); + return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); } /* @@ -308,11 +298,10 @@ static ssize_t cxacru_sysfs_show_adsl_state(struct device *dev, struct cxacru_data *instance = usbatm_instance->driver_data; u32 value = instance->card_info[CXINF_LINE_STARTABLE]; - switch (value) { - case 0: return snprintf(buf, PAGE_SIZE, "running\n"); - case 1: return snprintf(buf, PAGE_SIZE, "stopped\n"); - default: return snprintf(buf, PAGE_SIZE, "unknown (%u)\n", value); - } + static char *str[] = { "running", "stopped" }; + if (unlikely(value >= ARRAY_SIZE(str))) + return snprintf(buf, PAGE_SIZE, "%u\n", value); + return snprintf(buf, PAGE_SIZE, "%s\n", str[value]); } static ssize_t cxacru_sysfs_store_adsl_state(struct device *dev, @@ -467,7 +456,6 @@ static int cxacru_start_wait_urb(struct urb *urb, struct completion *done, int* actual_length) { struct timer_list timer; - int status; init_timer(&timer); timer.expires = jiffies + msecs_to_jiffies(CMD_TIMEOUT); @@ -475,12 +463,11 @@ static int cxacru_start_wait_urb(struct urb *urb, struct completion *done, timer.function = cxacru_timeout_kill; add_timer(&timer); wait_for_completion(done); - status = urb->status; del_timer_sync(&timer); if (actual_length) *actual_length = urb->actual_length; - return status; + return urb->status; /* must read status after completion */ } static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm, diff --git a/drivers/usb/atm/speedtch.c b/drivers/usb/atm/speedtch.c index 638b8009b3bc..eb0615abff68 100644 --- a/drivers/usb/atm/speedtch.c +++ b/drivers/usb/atm/speedtch.c @@ -612,7 +612,8 @@ static void speedtch_handle_int(struct urb *int_urb) struct speedtch_instance_data *instance = int_urb->context; struct usbatm_data *usbatm = instance->usbatm; unsigned int count = int_urb->actual_length; - int ret = int_urb->status; + int status = int_urb->status; + int ret; /* The magic interrupt for "up state" */ static const unsigned char up_int[6] = { 0xa1, 0x00, 0x01, 0x00, 0x00, 0x00 }; @@ -621,8 +622,8 @@ static void speedtch_handle_int(struct urb *int_urb) atm_dbg(usbatm, "%s entered\n", __func__); - if (ret < 0) { - atm_dbg(usbatm, "%s: nonzero urb status %d!\n", __func__, ret); + if (status < 0) { + atm_dbg(usbatm, "%s: nonzero urb status %d!\n", __func__, status); goto fail; } diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c index 4973e147bc79..29807d048b04 100644 --- a/drivers/usb/atm/ueagle-atm.c +++ b/drivers/usb/atm/ueagle-atm.c @@ -1168,6 +1168,7 @@ static int uea_kthread(void *data) struct uea_softc *sc = data; int ret = -EAGAIN; + set_freezable(); uea_enters(INS_TO_USBDEV(sc)); while (!kthread_should_stop()) { if (ret < 0 || sc->reset) @@ -1307,11 +1308,13 @@ static void uea_intr(struct urb *urb) { struct uea_softc *sc = urb->context; struct intr_pkt *intr = urb->transfer_buffer; + int status = urb->status; + uea_enters(INS_TO_USBDEV(sc)); - if (unlikely(urb->status < 0)) { + if (unlikely(status < 0)) { uea_err(INS_TO_USBDEV(sc), "uea_intr() failed with %d\n", - urb->status); + status); return; } @@ -1718,9 +1721,12 @@ static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf, ret = uea_boot(sc); if (ret < 0) - goto error; + goto error_rm_grp; return 0; + +error_rm_grp: + sysfs_remove_group(&intf->dev.kobj, &attr_grp); error: kfree(sc); return ret; diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c index 11e9b15ca45a..e717f5b1caee 100644 --- a/drivers/usb/atm/usbatm.c +++ b/drivers/usb/atm/usbatm.c @@ -257,9 +257,10 @@ static void usbatm_complete(struct urb *urb) { struct usbatm_channel *channel = urb->context; unsigned long flags; + int status = urb->status; vdbg("%s: urb 0x%p, status %d, actual_length %d", - __func__, urb, urb->status, urb->actual_length); + __func__, urb, status, urb->actual_length); /* usually in_interrupt(), but not always */ spin_lock_irqsave(&channel->lock, flags); @@ -269,16 +270,16 @@ static void usbatm_complete(struct urb *urb) spin_unlock_irqrestore(&channel->lock, flags); - if (unlikely(urb->status) && + if (unlikely(status) && (!(channel->usbatm->flags & UDSL_IGNORE_EILSEQ) || - urb->status != -EILSEQ )) + status != -EILSEQ )) { - if (urb->status == -ESHUTDOWN) + if (status == -ESHUTDOWN) return; if (printk_ratelimit()) atm_warn(channel->usbatm, "%s: urb 0x%p failed (%d)!\n", - __func__, urb, urb->status); + __func__, urb, status); /* throttle processing in case of an error */ mod_timer(&channel->delay, jiffies + msecs_to_jiffies(THROTTLE_MSECS)); } else diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 407fb8feaba7..f51e22490edf 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -257,9 +257,10 @@ static void acm_ctrl_irq(struct urb *urb) struct usb_cdc_notification *dr = urb->transfer_buffer; unsigned char *data; int newctrl; - int status; + int retval; + int status = urb->status; - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -267,10 +268,10 @@ static void acm_ctrl_irq(struct urb *urb) case -ENOENT: case -ESHUTDOWN: /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); + dbg("%s - urb shutting down with status: %d", __FUNCTION__, status); return; default: - dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); + dbg("%s - nonzero urb status received: %d", __FUNCTION__, status); goto exit; } @@ -311,10 +312,10 @@ static void acm_ctrl_irq(struct urb *urb) break; } exit: - status = usb_submit_urb (urb, GFP_ATOMIC); - if (status) + retval = usb_submit_urb (urb, GFP_ATOMIC); + if (retval) err ("%s - usb_submit_urb failed with result %d", - __FUNCTION__, status); + __FUNCTION__, retval); } /* data interface returns incoming bytes, or we got unthrottled */ @@ -324,7 +325,8 @@ static void acm_read_bulk(struct urb *urb) struct acm_ru *rcv = urb->context; struct acm *acm = rcv->instance; int status = urb->status; - dbg("Entering acm_read_bulk with status %d", urb->status); + + dbg("Entering acm_read_bulk with status %d", status); if (!ACM_READY(acm)) return; @@ -1163,6 +1165,9 @@ static struct usb_device_id acm_ids[] = { { USB_DEVICE(0x0870, 0x0001), /* Metricom GS Modem */ .driver_info = NO_UNION_NORMAL, /* has no union descriptor */ }, + { USB_DEVICE(0x0e8d, 0x0003), /* FIREFLY, MediaTek Inc; andrey.arapov@gmail.com */ + .driver_info = NO_UNION_NORMAL, /* has no union descriptor */ + }, { USB_DEVICE(0x0482, 0x0203), /* KYOCERA AH-K3001V */ .driver_info = NO_UNION_NORMAL, /* has no union descriptor */ }, diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c index 6778f9af7943..5192cd9356de 100644 --- a/drivers/usb/class/usblp.c +++ b/drivers/usb/class/usblp.c @@ -1,5 +1,5 @@ /* - * usblp.c Version 0.13 + * usblp.c * * Copyright (c) 1999 Michael Gee <michael@linuxspecific.com> * Copyright (c) 1999 Pavel Machek <pavel@suse.cz> @@ -61,11 +61,11 @@ /* * Version Information */ -#define DRIVER_VERSION "v0.13" #define DRIVER_AUTHOR "Michael Gee, Pavel Machek, Vojtech Pavlik, Randy Dunlap, Pete Zaitcev, David Paschal" #define DRIVER_DESC "USB Printer Device Class driver" #define USBLP_BUF_SIZE 8192 +#define USBLP_BUF_SIZE_IN 1024 #define USBLP_DEVICE_ID_SIZE 1024 /* ioctls: */ @@ -127,14 +127,22 @@ MFG:HEWLETT-PACKARD;MDL:DESKJET 970C;CMD:MLC,PCL,PML;CLASS:PRINTER;DESCRIPTION:H */ #define STATUS_BUF_SIZE 8 +/* + * Locks down the locking order: + * ->wmut locks wstatus. + * ->mut locks the whole usblp, except [rw]complete, and thus, by indirection, + * [rw]status. We only touch status when we know the side idle. + * ->lock locks what interrupt accesses. + */ struct usblp { struct usb_device *dev; /* USB device */ - struct mutex mut; /* locks this struct, especially "dev" */ - char *writebuf; /* write transfer_buffer */ + struct mutex wmut; + struct mutex mut; + spinlock_t lock; /* locks rcomplete, wcomplete */ char *readbuf; /* read transfer_buffer */ char *statusbuf; /* status transfer_buffer */ - struct urb *readurb, *writeurb; /* The urbs */ - wait_queue_head_t wait; /* Zzzzz ... */ + struct usb_anchor urbs; + wait_queue_head_t rwait, wwait; int readcount; /* Counter for reads */ int ifnum; /* Interface number */ struct usb_interface *intf; /* The interface */ @@ -147,8 +155,9 @@ struct usblp { } protocol[USBLP_MAX_PROTOCOLS]; int current_protocol; int minor; /* minor number of device */ - int wcomplete; /* writing is completed */ - int rcomplete; /* reading is completed */ + int wcomplete, rcomplete; + int wstatus; /* bytes written or error */ + int rstatus; /* bytes ready or error */ unsigned int quirks; /* quirks flags */ unsigned char used; /* True if open */ unsigned char present; /* True if not disconnected */ @@ -166,9 +175,6 @@ static void usblp_dump(struct usblp *usblp) { dbg("dev=0x%p", usblp->dev); dbg("present=%d", usblp->present); dbg("readbuf=0x%p", usblp->readbuf); - dbg("writebuf=0x%p", usblp->writebuf); - dbg("readurb=0x%p", usblp->readurb); - dbg("writeurb=0x%p", usblp->writeurb); dbg("readcount=%d", usblp->readcount); dbg("ifnum=%d", usblp->ifnum); for (p = USBLP_FIRST_PROTOCOL; p <= USBLP_LAST_PROTOCOL; p++) { @@ -178,8 +184,8 @@ static void usblp_dump(struct usblp *usblp) { } dbg("current_protocol=%d", usblp->current_protocol); dbg("minor=%d", usblp->minor); - dbg("wcomplete=%d", usblp->wcomplete); - dbg("rcomplete=%d", usblp->rcomplete); + dbg("wstatus=%d", usblp->wstatus); + dbg("rstatus=%d", usblp->rstatus); dbg("quirks=%d", usblp->quirks); dbg("used=%d", usblp->used); dbg("bidir=%d", usblp->bidir); @@ -222,6 +228,11 @@ static const struct quirk_printer_struct quirk_printers[] = { { 0, 0 } }; +static int usblp_wwait(struct usblp *usblp, int nonblock); +static int usblp_wtest(struct usblp *usblp, int nonblock); +static int usblp_rwait_and_lock(struct usblp *usblp, int nonblock); +static int usblp_rtest(struct usblp *usblp, int nonblock); +static int usblp_submit_read(struct usblp *usblp); static int usblp_select_alts(struct usblp *usblp); static int usblp_set_protocol(struct usblp *usblp, int protocol); static int usblp_cache_device_id_string(struct usblp *usblp); @@ -278,34 +289,50 @@ static int proto_bias = -1; static void usblp_bulk_read(struct urb *urb) { struct usblp *usblp = urb->context; + int status = urb->status; - if (unlikely(!usblp || !usblp->dev || !usblp->used)) - return; - - if (unlikely(!usblp->present)) - goto unplug; - if (unlikely(urb->status)) - warn("usblp%d: nonzero read/write bulk status received: %d", - usblp->minor, urb->status); + if (usblp->present && usblp->used) { + if (status) + printk(KERN_WARNING "usblp%d: " + "nonzero read bulk status received: %d\n", + usblp->minor, status); + } + spin_lock(&usblp->lock); + if (status < 0) + usblp->rstatus = status; + else + usblp->rstatus = urb->actual_length; usblp->rcomplete = 1; -unplug: - wake_up_interruptible(&usblp->wait); + wake_up(&usblp->rwait); + spin_unlock(&usblp->lock); + + usb_free_urb(urb); } static void usblp_bulk_write(struct urb *urb) { struct usblp *usblp = urb->context; + int status = urb->status; - if (unlikely(!usblp || !usblp->dev || !usblp->used)) - return; - if (unlikely(!usblp->present)) - goto unplug; - if (unlikely(urb->status)) - warn("usblp%d: nonzero read/write bulk status received: %d", - usblp->minor, urb->status); + if (usblp->present && usblp->used) { + if (status) + printk(KERN_WARNING "usblp%d: " + "nonzero write bulk status received: %d\n", + usblp->minor, status); + } + spin_lock(&usblp->lock); + if (status < 0) + usblp->wstatus = status; + else + usblp->wstatus = urb->actual_length; usblp->wcomplete = 1; -unplug: - wake_up_interruptible(&usblp->wait); + wake_up(&usblp->wwait); + spin_unlock(&usblp->lock); + + /* XXX Use usb_setup_bulk_urb when available. Talk to Marcel. */ + kfree(urb->transfer_buffer); + urb->transfer_buffer = NULL; /* Not refcounted, so to be safe... */ + usb_free_urb(urb); } /* @@ -322,7 +349,8 @@ static int usblp_check_status(struct usblp *usblp, int err) error = usblp_read_status (usblp, usblp->statusbuf); if (error < 0) { if (printk_ratelimit()) - err("usblp%d: error %d reading printer status", + printk(KERN_ERR + "usblp%d: error %d reading printer status\n", usblp->minor, error); return 0; } @@ -336,8 +364,10 @@ static int usblp_check_status(struct usblp *usblp, int err) if (~status & LP_PSELECD) newerr = 2; - if (newerr != err) - info("usblp%d: %s", usblp->minor, usblp_messages[newerr]); + if (newerr != err) { + printk(KERN_INFO "usblp%d: %s\n", + usblp->minor, usblp_messages[newerr]); + } return newerr; } @@ -345,12 +375,9 @@ static int usblp_check_status(struct usblp *usblp, int err) static int handle_bidir (struct usblp *usblp) { if (usblp->bidir && usblp->used && !usblp->sleeping) { - usblp->readcount = 0; - usblp->readurb->dev = usblp->dev; - if (usb_submit_urb(usblp->readurb, GFP_KERNEL) < 0) + if (usblp_submit_read(usblp) < 0) return -EIO; } - return 0; } @@ -403,11 +430,9 @@ static int usblp_open(struct inode *inode, struct file *file) usblp->used = 1; file->private_data = usblp; - usblp->writeurb->transfer_buffer_length = 0; usblp->wcomplete = 1; /* we begin writeable */ + usblp->wstatus = 0; usblp->rcomplete = 0; - usblp->writeurb->status = 0; - usblp->readurb->status = 0; if (handle_bidir(usblp) < 0) { usblp->used = 0; @@ -421,20 +446,17 @@ out: static void usblp_cleanup (struct usblp *usblp) { - info("usblp%d: removed", usblp->minor); + printk(KERN_INFO "usblp%d: removed\n", usblp->minor); + kfree(usblp->readbuf); kfree (usblp->device_id_string); kfree (usblp->statusbuf); - usb_free_urb(usblp->writeurb); - usb_free_urb(usblp->readurb); kfree (usblp); } static void usblp_unlink_urbs(struct usblp *usblp) { - usb_kill_urb(usblp->writeurb); - if (usblp->bidir) - usb_kill_urb(usblp->readurb); + usb_kill_anchored_urbs(&usblp->urbs); } static int usblp_release(struct inode *inode, struct file *file) @@ -455,10 +477,18 @@ static int usblp_release(struct inode *inode, struct file *file) /* No kernel lock - fine */ static unsigned int usblp_poll(struct file *file, struct poll_table_struct *wait) { + int ret; + unsigned long flags; + struct usblp *usblp = file->private_data; - poll_wait(file, &usblp->wait, wait); - return ((!usblp->bidir || !usblp->rcomplete) ? 0 : POLLIN | POLLRDNORM) + /* Should we check file->f_mode & FMODE_WRITE before poll_wait()? */ + poll_wait(file, &usblp->rwait, wait); + poll_wait(file, &usblp->wwait, wait); + spin_lock_irqsave(&usblp->lock, flags); + ret = ((!usblp->bidir || !usblp->rcomplete) ? 0 : POLLIN | POLLRDNORM) | (!usblp->wcomplete ? 0 : POLLOUT | POLLWRNORM); + spin_unlock_irqrestore(&usblp->lock, flags); + return ret; } static long usblp_ioctl(struct file *file, unsigned int cmd, unsigned long arg) @@ -632,10 +662,11 @@ static long usblp_ioctl(struct file *file, unsigned int cmd, unsigned long arg) switch (cmd) { case LPGETSTATUS: - if (usblp_read_status(usblp, usblp->statusbuf)) { + if ((retval = usblp_read_status(usblp, usblp->statusbuf))) { if (printk_ratelimit()) - err("usblp%d: failed reading printer status", - usblp->minor); + printk(KERN_ERR "usblp%d:" + "failed reading printer status (%d)\n", + usblp->minor, retval); retval = -EIO; goto done; } @@ -656,168 +687,304 @@ done: static ssize_t usblp_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) { struct usblp *usblp = file->private_data; - int timeout, intr, rv, err = 0, transfer_length = 0; - size_t writecount = 0; + char *writebuf; + struct urb *writeurb; + int rv; + int transfer_length; + ssize_t writecount = 0; + + if (mutex_lock_interruptible(&usblp->wmut)) { + rv = -EINTR; + goto raise_biglock; + } + if ((rv = usblp_wwait(usblp, !!(file->f_flags & O_NONBLOCK))) < 0) + goto raise_wait; while (writecount < count) { - if (!usblp->wcomplete) { - barrier(); - if (file->f_flags & O_NONBLOCK) { - writecount += transfer_length; - return writecount ? writecount : -EAGAIN; - } - - timeout = USBLP_WRITE_TIMEOUT; - - rv = wait_event_interruptible_timeout(usblp->wait, usblp->wcomplete || !usblp->present , timeout); - if (rv < 0) - return writecount ? writecount : -EINTR; - } - intr = mutex_lock_interruptible (&usblp->mut); - if (intr) - return writecount ? writecount : -EINTR; - if (!usblp->present) { - mutex_unlock (&usblp->mut); - return -ENODEV; - } - - if (usblp->sleeping) { - mutex_unlock (&usblp->mut); - return writecount ? writecount : -ENODEV; - } - - if (usblp->writeurb->status != 0) { - if (usblp->quirks & USBLP_QUIRK_BIDIR) { - if (!usblp->wcomplete) - err("usblp%d: error %d writing to printer", - usblp->minor, usblp->writeurb->status); - err = usblp->writeurb->status; - } else - err = usblp_check_status(usblp, err); - mutex_unlock (&usblp->mut); - - /* if the fault was due to disconnect, let khubd's - * call to usblp_disconnect() grab usblp->mut ... - */ - schedule (); - continue; - } - - /* We must increment writecount here, and not at the - * end of the loop. Otherwise, the final loop iteration may - * be skipped, leading to incomplete printer output. + /* + * Step 1: Submit next block. */ - writecount += transfer_length; - if (writecount == count) { - mutex_unlock(&usblp->mut); - break; - } - - transfer_length=(count - writecount); - if (transfer_length > USBLP_BUF_SIZE) + if ((transfer_length = count - writecount) > USBLP_BUF_SIZE) transfer_length = USBLP_BUF_SIZE; - usblp->writeurb->transfer_buffer_length = transfer_length; - - if (copy_from_user(usblp->writeurb->transfer_buffer, + rv = -ENOMEM; + if ((writebuf = kmalloc(USBLP_BUF_SIZE, GFP_KERNEL)) == NULL) + goto raise_buf; + if ((writeurb = usb_alloc_urb(0, GFP_KERNEL)) == NULL) + goto raise_urb; + usb_fill_bulk_urb(writeurb, usblp->dev, + usb_sndbulkpipe(usblp->dev, + usblp->protocol[usblp->current_protocol].epwrite->bEndpointAddress), + writebuf, transfer_length, usblp_bulk_write, usblp); + usb_anchor_urb(writeurb, &usblp->urbs); + + if (copy_from_user(writebuf, buffer + writecount, transfer_length)) { - mutex_unlock(&usblp->mut); - return writecount ? writecount : -EFAULT; + rv = -EFAULT; + goto raise_badaddr; } - usblp->writeurb->dev = usblp->dev; + spin_lock_irq(&usblp->lock); usblp->wcomplete = 0; - err = usb_submit_urb(usblp->writeurb, GFP_KERNEL); - if (err) { + spin_unlock_irq(&usblp->lock); + if ((rv = usb_submit_urb(writeurb, GFP_KERNEL)) < 0) { + usblp->wstatus = 0; + spin_lock_irq(&usblp->lock); usblp->wcomplete = 1; - if (err != -ENOMEM) - count = -EIO; - else - count = writecount ? writecount : -ENOMEM; - mutex_unlock (&usblp->mut); - break; + wake_up(&usblp->wwait); + spin_unlock_irq(&usblp->lock); + if (rv != -ENOMEM) + rv = -EIO; + goto raise_submit; } - mutex_unlock (&usblp->mut); + + /* + * Step 2: Wait for transfer to end, collect results. + */ + rv = usblp_wwait(usblp, !!(file->f_flags&O_NONBLOCK)); + if (rv < 0) { + if (rv == -EAGAIN) { + /* Presume that it's going to complete well. */ + writecount += transfer_length; + } + /* Leave URB dangling, to be cleaned on close. */ + goto collect_error; + } + + if (usblp->wstatus < 0) { + usblp_check_status(usblp, 0); + rv = -EIO; + goto collect_error; + } + /* + * This is critical: it must be our URB, not other writer's. + * The wmut exists mainly to cover us here. + */ + writecount += usblp->wstatus; } - return count; + mutex_unlock(&usblp->wmut); + return writecount; + +raise_submit: +raise_badaddr: + usb_unanchor_urb(writeurb); + usb_free_urb(writeurb); +raise_urb: + kfree(writebuf); +raise_buf: +raise_wait: +collect_error: /* Out of raise sequence */ + mutex_unlock(&usblp->wmut); +raise_biglock: + return writecount ? writecount : rv; } -static ssize_t usblp_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) +/* + * Notice that we fail to restart in a few cases: on EFAULT, on restart + * error, etc. This is the historical behaviour. In all such cases we return + * EIO, and applications loop in order to get the new read going. + */ +static ssize_t usblp_read(struct file *file, char __user *buffer, size_t len, loff_t *ppos) { struct usblp *usblp = file->private_data; - int rv, intr; + ssize_t count; + ssize_t avail; + int rv; if (!usblp->bidir) return -EINVAL; - intr = mutex_lock_interruptible (&usblp->mut); - if (intr) - return -EINTR; - if (!usblp->present) { - count = -ENODEV; + rv = usblp_rwait_and_lock(usblp, !!(file->f_flags & O_NONBLOCK)); + if (rv < 0) + return rv; + + if ((avail = usblp->rstatus) < 0) { + printk(KERN_ERR "usblp%d: error %d reading from printer\n", + usblp->minor, (int)avail); + usblp_submit_read(usblp); + count = -EIO; goto done; } - if (!usblp->rcomplete) { - barrier(); + count = len < avail - usblp->readcount ? len : avail - usblp->readcount; + if (count != 0 && + copy_to_user(buffer, usblp->readbuf + usblp->readcount, count)) { + count = -EFAULT; + goto done; + } - if (file->f_flags & O_NONBLOCK) { - count = -EAGAIN; - goto done; - } - mutex_unlock(&usblp->mut); - rv = wait_event_interruptible(usblp->wait, usblp->rcomplete || !usblp->present); - mutex_lock(&usblp->mut); - if (rv < 0) { - count = -EINTR; + if ((usblp->readcount += count) == avail) { + if (usblp_submit_read(usblp) < 0) { + /* We don't want to leak USB return codes into errno. */ + if (count == 0) + count = -EIO; goto done; } } - if (!usblp->present) { - count = -ENODEV; - goto done; +done: + mutex_unlock (&usblp->mut); + return count; +} + +/* + * Wait for the write path to come idle. + * This is called under the ->wmut, so the idle path stays idle. + * + * Our write path has a peculiar property: it does not buffer like a tty, + * but waits for the write to succeed. This allows our ->release to bug out + * without waiting for writes to drain. But it obviously does not work + * when O_NONBLOCK is set. So, applications setting O_NONBLOCK must use + * select(2) or poll(2) to wait for the buffer to drain before closing. + * Alternatively, set blocking mode with fcntl and issue a zero-size write. + * + * Old v0.13 code had a non-functional timeout for wait_event(). Someone forgot + * to check the return code for timeout expiration, so it had no effect. + * Apparently, it was intended to check for error conditons, such as out + * of paper. It is going to return when we settle things with CUPS. XXX + */ +static int usblp_wwait(struct usblp *usblp, int nonblock) +{ + DECLARE_WAITQUEUE(waita, current); + int rc; + + add_wait_queue(&usblp->wwait, &waita); + for (;;) { + if (mutex_lock_interruptible(&usblp->mut)) { + rc = -EINTR; + break; + } + set_current_state(TASK_INTERRUPTIBLE); + if ((rc = usblp_wtest(usblp, nonblock)) < 0) { + mutex_unlock(&usblp->mut); + break; + } + mutex_unlock(&usblp->mut); + if (rc == 0) + break; + schedule(); } + set_current_state(TASK_RUNNING); + remove_wait_queue(&usblp->wwait, &waita); + return rc; +} - if (usblp->sleeping) { - count = -ENODEV; - goto done; +static int usblp_wtest(struct usblp *usblp, int nonblock) +{ + unsigned long flags; + + if (!usblp->present) + return -ENODEV; + if (signal_pending(current)) + return -EINTR; + spin_lock_irqsave(&usblp->lock, flags); + if (usblp->wcomplete) { + spin_unlock_irqrestore(&usblp->lock, flags); + return 0; } + spin_unlock_irqrestore(&usblp->lock, flags); + if (usblp->sleeping) + return -ENODEV; + if (nonblock) + return -EAGAIN; + return 1; +} - if (usblp->readurb->status) { - err("usblp%d: error %d reading from printer", - usblp->minor, usblp->readurb->status); - usblp->readurb->dev = usblp->dev; - usblp->readcount = 0; - usblp->rcomplete = 0; - if (usb_submit_urb(usblp->readurb, GFP_KERNEL) < 0) - dbg("error submitting urb"); - count = -EIO; - goto done; +/* + * Wait for read bytes to become available. This probably should have been + * called usblp_r_lock_and_wait(), because we lock first. But it's a traditional + * name for functions which lock and return. + * + * We do not use wait_event_interruptible because it makes locking iffy. + */ +static int usblp_rwait_and_lock(struct usblp *usblp, int nonblock) +{ + DECLARE_WAITQUEUE(waita, current); + int rc; + + add_wait_queue(&usblp->rwait, &waita); + for (;;) { + if (mutex_lock_interruptible(&usblp->mut)) { + rc = -EINTR; + break; + } + set_current_state(TASK_INTERRUPTIBLE); + if ((rc = usblp_rtest(usblp, nonblock)) < 0) { + mutex_unlock(&usblp->mut); + break; + } + if (rc == 0) /* Keep it locked */ + break; + mutex_unlock(&usblp->mut); + schedule(); } + set_current_state(TASK_RUNNING); + remove_wait_queue(&usblp->rwait, &waita); + return rc; +} - count = count < usblp->readurb->actual_length - usblp->readcount ? - count : usblp->readurb->actual_length - usblp->readcount; +static int usblp_rtest(struct usblp *usblp, int nonblock) +{ + unsigned long flags; - if (copy_to_user(buffer, usblp->readurb->transfer_buffer + usblp->readcount, count)) { - count = -EFAULT; - goto done; + if (!usblp->present) + return -ENODEV; + if (signal_pending(current)) + return -EINTR; + spin_lock_irqsave(&usblp->lock, flags); + if (usblp->rcomplete) { + spin_unlock_irqrestore(&usblp->lock, flags); + return 0; } + spin_unlock_irqrestore(&usblp->lock, flags); + if (usblp->sleeping) + return -ENODEV; + if (nonblock) + return -EAGAIN; + return 1; +} - if ((usblp->readcount += count) == usblp->readurb->actual_length) { - usblp->readcount = 0; - usblp->readurb->dev = usblp->dev; - usblp->rcomplete = 0; - if (usb_submit_urb(usblp->readurb, GFP_KERNEL)) { - count = -EIO; - goto done; - } +/* + * Please check ->bidir and other such things outside for now. + */ +static int usblp_submit_read(struct usblp *usblp) +{ + struct urb *urb; + unsigned long flags; + int rc; + + rc = -ENOMEM; + if ((urb = usb_alloc_urb(0, GFP_KERNEL)) == NULL) + goto raise_urb; + + usb_fill_bulk_urb(urb, usblp->dev, + usb_rcvbulkpipe(usblp->dev, + usblp->protocol[usblp->current_protocol].epread->bEndpointAddress), + usblp->readbuf, USBLP_BUF_SIZE_IN, + usblp_bulk_read, usblp); + usb_anchor_urb(urb, &usblp->urbs); + + spin_lock_irqsave(&usblp->lock, flags); + usblp->readcount = 0; /* XXX Why here? */ + usblp->rcomplete = 0; + spin_unlock_irqrestore(&usblp->lock, flags); + if ((rc = usb_submit_urb(urb, GFP_KERNEL)) < 0) { + dbg("error submitting urb (%d)", rc); + spin_lock_irqsave(&usblp->lock, flags); + usblp->rstatus = rc; + usblp->rcomplete = 1; + spin_unlock_irqrestore(&usblp->lock, flags); + goto raise_submit; } -done: - mutex_unlock (&usblp->mut); - return count; + return 0; + +raise_submit: + usb_unanchor_urb(urb); + usb_free_urb(urb); +raise_urb: + return rc; } /* @@ -891,55 +1058,41 @@ static int usblp_probe(struct usb_interface *intf, /* Malloc and start initializing usblp structure so we can use it * directly. */ if (!(usblp = kzalloc(sizeof(struct usblp), GFP_KERNEL))) { - err("out of memory for usblp"); + retval = -ENOMEM; goto abort; } usblp->dev = dev; + mutex_init(&usblp->wmut); mutex_init (&usblp->mut); - init_waitqueue_head(&usblp->wait); + spin_lock_init(&usblp->lock); + init_waitqueue_head(&usblp->rwait); + init_waitqueue_head(&usblp->wwait); + init_usb_anchor(&usblp->urbs); usblp->ifnum = intf->cur_altsetting->desc.bInterfaceNumber; usblp->intf = intf; - usblp->writeurb = usb_alloc_urb(0, GFP_KERNEL); - if (!usblp->writeurb) { - err("out of memory"); - goto abort; - } - usblp->readurb = usb_alloc_urb(0, GFP_KERNEL); - if (!usblp->readurb) { - err("out of memory"); - goto abort; - } - /* Malloc device ID string buffer to the largest expected length, * since we can re-query it on an ioctl and a dynamic string * could change in length. */ if (!(usblp->device_id_string = kmalloc(USBLP_DEVICE_ID_SIZE, GFP_KERNEL))) { - err("out of memory for device_id_string"); + retval = -ENOMEM; goto abort; } - usblp->writebuf = usblp->readbuf = NULL; - usblp->writeurb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; - usblp->readurb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; - /* Malloc write & read buffers. We somewhat wastefully + /* + * Allocate read buffer. We somewhat wastefully * malloc both regardless of bidirectionality, because the - * alternate setting can be changed later via an ioctl. */ - if (!(usblp->writebuf = usb_buffer_alloc(dev, USBLP_BUF_SIZE, - GFP_KERNEL, &usblp->writeurb->transfer_dma))) { - err("out of memory for write buf"); - goto abort; - } - if (!(usblp->readbuf = usb_buffer_alloc(dev, USBLP_BUF_SIZE, - GFP_KERNEL, &usblp->readurb->transfer_dma))) { - err("out of memory for read buf"); + * alternate setting can be changed later via an ioctl. + */ + if (!(usblp->readbuf = kmalloc(USBLP_BUF_SIZE_IN, GFP_KERNEL))) { + retval = -ENOMEM; goto abort; } /* Allocate buffer for printer status */ usblp->statusbuf = kmalloc(STATUS_BUF_SIZE, GFP_KERNEL); if (!usblp->statusbuf) { - err("out of memory for statusbuf"); + retval = -ENOMEM; goto abort; } @@ -954,12 +1107,15 @@ static int usblp_probe(struct usb_interface *intf, dbg("incompatible printer-class device 0x%4.4X/0x%4.4X", le16_to_cpu(dev->descriptor.idVendor), le16_to_cpu(dev->descriptor.idProduct)); + retval = -ENODEV; goto abort; } /* Setup the selected alternate setting and endpoints. */ - if (usblp_set_protocol(usblp, protocol) < 0) + if (usblp_set_protocol(usblp, protocol) < 0) { + retval = -ENODEV; /* ->probe isn't ->ioctl */ goto abort; + } /* Retrieve and store the device ID string. */ usblp_cache_device_id_string(usblp); @@ -977,12 +1133,14 @@ static int usblp_probe(struct usb_interface *intf, retval = usb_register_dev(intf, &usblp_class); if (retval) { - err("Not able to get a minor for this device."); + printk(KERN_ERR "usblp: Not able to get a minor" + " (base %u, slice default): %d\n", + USBLP_MINOR_BASE, retval); goto abort_intfdata; } usblp->minor = intf->minor; - info("usblp%d: USB %sdirectional printer dev %d " - "if %d alt %d proto %d vid 0x%4.4X pid 0x%4.4X", + printk(KERN_INFO "usblp%d: USB %sdirectional printer dev %d " + "if %d alt %d proto %d vid 0x%4.4X pid 0x%4.4X\n", usblp->minor, usblp->bidir ? "Bi" : "Uni", dev->devnum, usblp->ifnum, usblp->protocol[usblp->current_protocol].alt_setting, @@ -997,19 +1155,12 @@ abort_intfdata: device_remove_file(&intf->dev, &dev_attr_ieee1284_id); abort: if (usblp) { - if (usblp->writebuf) - usb_buffer_free (usblp->dev, USBLP_BUF_SIZE, - usblp->writebuf, usblp->writeurb->transfer_dma); - if (usblp->readbuf) - usb_buffer_free (usblp->dev, USBLP_BUF_SIZE, - usblp->readbuf, usblp->readurb->transfer_dma); + kfree(usblp->readbuf); kfree(usblp->statusbuf); kfree(usblp->device_id_string); - usb_free_urb(usblp->writeurb); - usb_free_urb(usblp->readurb); kfree(usblp); } - return -EIO; + return retval; } /* @@ -1078,8 +1229,9 @@ static int usblp_select_alts(struct usblp *usblp) if (ifd->desc.bInterfaceProtocol == 1) { epread = NULL; } else if (usblp->quirks & USBLP_QUIRK_BIDIR) { - info("Disabling reads from problem bidirectional " - "printer on usblp%d", usblp->minor); + printk(KERN_INFO "usblp%d: Disabling reads from " + "problematic bidirectional printer\n", + usblp->minor); epread = NULL; } @@ -1119,25 +1271,12 @@ static int usblp_set_protocol(struct usblp *usblp, int protocol) return -EINVAL; r = usb_set_interface(usblp->dev, usblp->ifnum, alts); if (r < 0) { - err("can't set desired altsetting %d on interface %d", + printk(KERN_ERR "usblp: can't set desired altsetting %d on interface %d\n", alts, usblp->ifnum); return r; } - usb_fill_bulk_urb(usblp->writeurb, usblp->dev, - usb_sndbulkpipe(usblp->dev, - usblp->protocol[protocol].epwrite->bEndpointAddress), - usblp->writebuf, 0, - usblp_bulk_write, usblp); - usblp->bidir = (usblp->protocol[protocol].epread != NULL); - if (usblp->bidir) - usb_fill_bulk_urb(usblp->readurb, usblp->dev, - usb_rcvbulkpipe(usblp->dev, - usblp->protocol[protocol].epread->bEndpointAddress), - usblp->readbuf, USBLP_BUF_SIZE, - usblp_bulk_read, usblp); - usblp->current_protocol = protocol; dbg("usblp%d set protocol %d", usblp->minor, protocol); return 0; @@ -1190,13 +1329,11 @@ static void usblp_disconnect(struct usb_interface *intf) mutex_lock (&usblp_mutex); mutex_lock (&usblp->mut); usblp->present = 0; + wake_up(&usblp->wwait); + wake_up(&usblp->rwait); usb_set_intfdata (intf, NULL); usblp_unlink_urbs(usblp); - usb_buffer_free (usblp->dev, USBLP_BUF_SIZE, - usblp->writebuf, usblp->writeurb->transfer_dma); - usb_buffer_free (usblp->dev, USBLP_BUF_SIZE, - usblp->readbuf, usblp->readurb->transfer_dma); mutex_unlock (&usblp->mut); if (!usblp->used) @@ -1211,6 +1348,11 @@ static int usblp_suspend (struct usb_interface *intf, pm_message_t message) /* we take no more IO */ usblp->sleeping = 1; usblp_unlink_urbs(usblp); +#if 0 /* XXX Do we want this? What if someone is reading, should we fail? */ + /* not strictly necessary, but just in case */ + wake_up(&usblp->wwait); + wake_up(&usblp->rwait); +#endif return 0; } @@ -1251,12 +1393,7 @@ static struct usb_driver usblp_driver = { static int __init usblp_init(void) { - int retval; - retval = usb_register(&usblp_driver); - if (!retval) - info(DRIVER_VERSION ": " DRIVER_DESC); - - return retval; + return usb_register(&usblp_driver); } static void __exit usblp_exit(void) diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig index c3ba40dcbb16..98eab24a491d 100644 --- a/drivers/usb/core/Kconfig +++ b/drivers/usb/core/Kconfig @@ -86,6 +86,31 @@ config USB_SUSPEND If you are unsure about this, say N here. +config USB_PERSIST + bool "USB device persistence during system suspend (DANGEROUS)" + depends on USB && PM && EXPERIMENTAL + default n + help + + If you say Y here and enable the "power/persist" attribute + for a USB device, the device's data structures will remain + persistent across system suspend, even if the USB bus loses + power. (This includes hibernation, also known as swsusp or + suspend-to-disk.) The devices will reappear as if by magic + when the system wakes up, with no need to unmount USB + filesystems, rmmod host-controller drivers, or do anything + else. + + WARNING: This option can be dangerous! + + If a USB device is replaced by another of the same type while + the system is asleep, there's a good chance the kernel won't + detect the change. Likewise if the media in a USB storage + device is replaced. When this happens it's almost certain to + cause data corruption and maybe even crash your system. + + If you are unsure, say N here. + config USB_OTG bool depends on USB && EXPERIMENTAL diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c index dd3482328ad2..cb69aa1e02e8 100644 --- a/drivers/usb/core/config.c +++ b/drivers/usb/core/config.c @@ -85,15 +85,21 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, memcpy(&endpoint->desc, d, n); INIT_LIST_HEAD(&endpoint->urb_list); - /* If the bInterval value is outside the legal range, - * set it to a default value: 32 ms */ + /* Fix up bInterval values outside the legal range. Use 32 ms if no + * proper value can be guessed. */ i = 0; /* i = min, j = max, n = default */ j = 255; if (usb_endpoint_xfer_int(d)) { i = 1; switch (to_usb_device(ddev)->speed) { case USB_SPEED_HIGH: - n = 9; /* 32 ms = 2^(9-1) uframes */ + /* Many device manufacturers are using full-speed + * bInterval values in high-speed interrupt endpoint + * descriptors. Try to fix those and fall back to a + * 32 ms default value otherwise. */ + n = fls(d->bInterval*8); + if (n == 0) + n = 9; /* 32 ms = 2^(9-1) uframes */ j = 16; break; default: /* USB_SPEED_FULL or _LOW */ @@ -124,6 +130,21 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, endpoint->desc.bInterval = n; } + /* Some buggy low-speed devices have Bulk endpoints, which is + * explicitly forbidden by the USB spec. In an attempt to make + * them usable, we will try treating them as Interrupt endpoints. + */ + if (to_usb_device(ddev)->speed == USB_SPEED_LOW && + usb_endpoint_xfer_bulk(d)) { + dev_warn(ddev, "config %d interface %d altsetting %d " + "endpoint 0x%X is Bulk; changing to Interrupt\n", + cfgno, inum, asnum, d->bEndpointAddress); + endpoint->desc.bmAttributes = USB_ENDPOINT_XFER_INT; + endpoint->desc.bInterval = 1; + if (le16_to_cpu(endpoint->desc.wMaxPacketSize) > 8) + endpoint->desc.wMaxPacketSize = cpu_to_le16(8); + } + /* Skip over any Class Specific or Vendor Specific descriptors; * find the next endpoint or interface descriptor */ endpoint->extra = buffer; @@ -274,6 +295,7 @@ static int usb_parse_configuration(struct device *ddev, int cfgidx, struct usb_descriptor_header *header; int len, retval; u8 inums[USB_MAXINTERFACES], nalts[USB_MAXINTERFACES]; + unsigned iad_num = 0; memcpy(&config->desc, buffer, USB_DT_CONFIG_SIZE); if (config->desc.bDescriptorType != USB_DT_CONFIG || @@ -351,6 +373,20 @@ static int usb_parse_configuration(struct device *ddev, int cfgidx, ++n; } + } else if (header->bDescriptorType == + USB_DT_INTERFACE_ASSOCIATION) { + if (iad_num == USB_MAXIADS) { + dev_warn(ddev, "found more Interface " + "Association Descriptors " + "than allocated for in " + "configuration %d\n", cfgno); + } else { + config->intf_assoc[iad_num] = + (struct usb_interface_assoc_descriptor + *)header; + iad_num++; + } + } else if (header->bDescriptorType == USB_DT_DEVICE || header->bDescriptorType == USB_DT_CONFIG) dev_warn(ddev, "config %d contains an unexpected " diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c index 6753ca059ee4..87c794d60aa0 100644 --- a/drivers/usb/core/devices.c +++ b/drivers/usb/core/devices.c @@ -102,6 +102,10 @@ static const char *format_config = /* C: #Ifs=dd Cfg#=dd Atr=xx MPwr=dddmA */ "C:%c #Ifs=%2d Cfg#=%2d Atr=%02x MxPwr=%3dmA\n"; +static const char *format_iad = +/* A: FirstIf#=dd IfCount=dd Cls=xx(sssss) Sub=xx Prot=xx */ + "A: FirstIf#=%2d IfCount=%2d Cls=%02x(%-5s) Sub=%02x Prot=%02x\n"; + static const char *format_iface = /* I: If#=dd Alt=dd #EPs=dd Cls=xx(sssss) Sub=xx Prot=xx Driver=xxxx*/ "I:%c If#=%2d Alt=%2d #EPs=%2d Cls=%02x(%-5s) Sub=%02x Prot=%02x Driver=%s\n"; @@ -146,6 +150,7 @@ static const struct class_info clas_info[] = {USB_CLASS_STILL_IMAGE, "still"}, {USB_CLASS_CSCID, "scard"}, {USB_CLASS_CONTENT_SEC, "c-sec"}, + {USB_CLASS_VIDEO, "video"}, {-1, "unk."} /* leave as last */ }; @@ -286,6 +291,21 @@ static char *usb_dump_interface( return start; } +static char *usb_dump_iad_descriptor(char *start, char *end, + const struct usb_interface_assoc_descriptor *iad) +{ + if (start > end) + return start; + start += sprintf(start, format_iad, + iad->bFirstInterface, + iad->bInterfaceCount, + iad->bFunctionClass, + class_decode(iad->bFunctionClass), + iad->bFunctionSubClass, + iad->bFunctionProtocol); + return start; +} + /* TBD: * 0. TBDs * 1. marking active interface altsettings (code lists all, but should mark @@ -322,6 +342,12 @@ static char *usb_dump_config ( if (!config) /* getting these some in 2.3.7; none in 2.3.6 */ return start + sprintf(start, "(null Cfg. desc.)\n"); start = usb_dump_config_descriptor(start, end, &config->desc, active); + for (i = 0; i < USB_MAXIADS; i++) { + if (config->intf_assoc[i] == NULL) + break; + start = usb_dump_iad_descriptor(start, end, + config->intf_assoc[i]); + } for (i = 0; i < config->desc.bNumInterfaces; i++) { intfc = config->intf_cache[i]; interface = config->interface[i]; diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 2619986e5300..63b1243a9139 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -24,10 +24,12 @@ #include <linux/device.h> #include <linux/usb.h> +#include <linux/usb/quirks.h> #include <linux/workqueue.h> #include "hcd.h" #include "usb.h" + #ifdef CONFIG_HOTPLUG /* @@ -58,7 +60,7 @@ ssize_t usb_store_new_id(struct usb_dynids *dynids, dynid->id.match_flags = USB_DEVICE_ID_MATCH_DEVICE; spin_lock(&dynids->lock); - list_add_tail(&dynids->list, &dynid->node); + list_add_tail(&dynid->node, &dynids->list); spin_unlock(&dynids->lock); if (get_driver(driver)) { @@ -802,18 +804,17 @@ static int usb_suspend_device(struct usb_device *udev, pm_message_t msg) udev->state == USB_STATE_SUSPENDED) goto done; - /* For devices that don't have a driver, we do a standard suspend. */ - if (udev->dev.driver == NULL) { + /* For devices that don't have a driver, we do a generic suspend. */ + if (udev->dev.driver) + udriver = to_usb_device_driver(udev->dev.driver); + else { udev->do_remote_wakeup = 0; - status = usb_port_suspend(udev); - goto done; + udriver = &usb_generic_driver; } - - udriver = to_usb_device_driver(udev->dev.driver); status = udriver->suspend(udev, msg); -done: - // dev_dbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status); + done: + dev_vdbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status); if (status == 0) udev->dev.power.power_state.event = msg.event; return status; @@ -825,8 +826,9 @@ static int usb_resume_device(struct usb_device *udev) struct usb_device_driver *udriver; int status = 0; - if (udev->state == USB_STATE_NOTATTACHED || - udev->state != USB_STATE_SUSPENDED) + if (udev->state == USB_STATE_NOTATTACHED) + goto done; + if (udev->state != USB_STATE_SUSPENDED && !udev->reset_resume) goto done; /* Can't resume it if it doesn't have a driver. */ @@ -835,11 +837,14 @@ static int usb_resume_device(struct usb_device *udev) goto done; } + if (udev->quirks & USB_QUIRK_RESET_RESUME) + udev->reset_resume = 1; + udriver = to_usb_device_driver(udev->dev.driver); status = udriver->resume(udev); -done: - // dev_dbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status); + done: + dev_vdbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status); if (status == 0) { udev->autoresume_disabled = 0; udev->dev.power.power_state.event = PM_EVENT_ON; @@ -877,15 +882,13 @@ static int usb_suspend_interface(struct usb_interface *intf, pm_message_t msg) mark_quiesced(intf); } -done: - // dev_dbg(&intf->dev, "%s: status %d\n", __FUNCTION__, status); - if (status == 0) - intf->dev.power.power_state.event = msg.event; + done: + dev_vdbg(&intf->dev, "%s: status %d\n", __FUNCTION__, status); return status; } /* Caller has locked intf's usb_device's pm_mutex */ -static int usb_resume_interface(struct usb_interface *intf) +static int usb_resume_interface(struct usb_interface *intf, int reset_resume) { struct usb_driver *driver; int status = 0; @@ -905,23 +908,37 @@ static int usb_resume_interface(struct usb_interface *intf) } driver = to_usb_driver(intf->dev.driver); - if (driver->resume) { - status = driver->resume(intf); - if (status) - dev_err(&intf->dev, "%s error %d\n", - "resume", status); - else - mark_active(intf); + if (reset_resume) { + if (driver->reset_resume) { + status = driver->reset_resume(intf); + if (status) + dev_err(&intf->dev, "%s error %d\n", + "reset_resume", status); + } else { + // status = -EOPNOTSUPP; + dev_warn(&intf->dev, "no %s for driver %s?\n", + "reset_resume", driver->name); + } } else { - dev_warn(&intf->dev, "no resume for driver %s?\n", - driver->name); - mark_active(intf); + if (driver->resume) { + status = driver->resume(intf); + if (status) + dev_err(&intf->dev, "%s error %d\n", + "resume", status); + } else { + // status = -EOPNOTSUPP; + dev_warn(&intf->dev, "no %s for driver %s?\n", + "resume", driver->name); + } } done: - // dev_dbg(&intf->dev, "%s: status %d\n", __FUNCTION__, status); + dev_vdbg(&intf->dev, "%s: status %d\n", __FUNCTION__, status); if (status == 0) - intf->dev.power.power_state.event = PM_EVENT_ON; + mark_active(intf); + + /* FIXME: Unbind the driver and reprobe if the resume failed + * (not possible if auto_pm is set) */ return status; } @@ -958,6 +975,18 @@ static int autosuspend_check(struct usb_device *udev) "for autosuspend\n"); return -EOPNOTSUPP; } + + /* Don't allow autosuspend if the device will need + * a reset-resume and any of its interface drivers + * doesn't include support. + */ + if (udev->quirks & USB_QUIRK_RESET_RESUME) { + struct usb_driver *driver; + + driver = to_usb_driver(intf->dev.driver); + if (!driver->reset_resume) + return -EOPNOTSUPP; + } } } @@ -974,7 +1003,7 @@ static int autosuspend_check(struct usb_device *udev) * or for the past. */ queue_delayed_work(ksuspend_usb_wq, &udev->autosuspend, - suspend_time - jiffies); + round_jiffies_relative(suspend_time - jiffies)); } return -EAGAIN; } @@ -1054,14 +1083,21 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg) break; } } - if (status == 0) + if (status == 0) { + + /* Non-root devices don't need to do anything for FREEZE + * or PRETHAW. */ + if (udev->parent && (msg.event == PM_EVENT_FREEZE || + msg.event == PM_EVENT_PRETHAW)) + goto done; status = usb_suspend_device(udev, msg); + } /* If the suspend failed, resume interfaces that did get suspended */ if (status != 0) { while (--i >= 0) { intf = udev->actconfig->interface[i]; - usb_resume_interface(intf); + usb_resume_interface(intf, 0); } /* Try another autosuspend when the interfaces aren't busy */ @@ -1076,7 +1112,7 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg) } done: - // dev_dbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status); + dev_vdbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status); return status; } @@ -1131,7 +1167,8 @@ static int usb_resume_both(struct usb_device *udev) status = usb_autoresume_device(parent); if (status == 0) { status = usb_resume_device(udev); - if (status) { + if (status || udev->state == + USB_STATE_NOTATTACHED) { usb_autosuspend_device(parent); /* It's possible usb_resume_device() @@ -1152,28 +1189,25 @@ static int usb_resume_both(struct usb_device *udev) /* We can't progagate beyond the USB subsystem, * so if a root hub's controller is suspended * then we're stuck. */ - if (udev->dev.parent->power.power_state.event != - PM_EVENT_ON) - status = -EHOSTUNREACH; - else - status = usb_resume_device(udev); + status = usb_resume_device(udev); } } else { - /* Needed only for setting udev->dev.power.power_state.event - * and for possible debugging message. */ + /* Needed for setting udev->dev.power.power_state.event, + * for possible debugging message, and for reset_resume. */ status = usb_resume_device(udev); } if (status == 0 && udev->actconfig) { for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { intf = udev->actconfig->interface[i]; - usb_resume_interface(intf); + usb_resume_interface(intf, udev->reset_resume); } } done: - // dev_dbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status); + dev_vdbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status); + udev->reset_resume = 0; return status; } @@ -1190,6 +1224,8 @@ static int usb_autopm_do_device(struct usb_device *udev, int inc_usage_cnt) udev->auto_pm = 1; udev->pm_usage_cnt += inc_usage_cnt; WARN_ON(udev->pm_usage_cnt < 0); + if (inc_usage_cnt) + udev->last_busy = jiffies; if (inc_usage_cnt >= 0 && udev->pm_usage_cnt > 0) { if (udev->state == USB_STATE_SUSPENDED) status = usb_resume_both(udev); @@ -1198,8 +1234,6 @@ static int usb_autopm_do_device(struct usb_device *udev, int inc_usage_cnt) else if (inc_usage_cnt) udev->last_busy = jiffies; } else if (inc_usage_cnt <= 0 && udev->pm_usage_cnt <= 0) { - if (inc_usage_cnt) - udev->last_busy = jiffies; status = usb_suspend_both(udev, PMSG_SUSPEND); } usb_pm_unlock(udev); @@ -1240,8 +1274,8 @@ void usb_autosuspend_device(struct usb_device *udev) int status; status = usb_autopm_do_device(udev, -1); - // dev_dbg(&udev->dev, "%s: cnt %d\n", - // __FUNCTION__, udev->pm_usage_cnt); + dev_vdbg(&udev->dev, "%s: cnt %d\n", + __FUNCTION__, udev->pm_usage_cnt); } /** @@ -1260,8 +1294,8 @@ void usb_autosuspend_device(struct usb_device *udev) void usb_try_autosuspend_device(struct usb_device *udev) { usb_autopm_do_device(udev, 0); - // dev_dbg(&udev->dev, "%s: cnt %d\n", - // __FUNCTION__, udev->pm_usage_cnt); + dev_vdbg(&udev->dev, "%s: cnt %d\n", + __FUNCTION__, udev->pm_usage_cnt); } /** @@ -1288,8 +1322,8 @@ int usb_autoresume_device(struct usb_device *udev) int status; status = usb_autopm_do_device(udev, 1); - // dev_dbg(&udev->dev, "%s: status %d cnt %d\n", - // __FUNCTION__, status, udev->pm_usage_cnt); + dev_vdbg(&udev->dev, "%s: status %d cnt %d\n", + __FUNCTION__, status, udev->pm_usage_cnt); return status; } @@ -1308,16 +1342,15 @@ static int usb_autopm_do_interface(struct usb_interface *intf, else { udev->auto_pm = 1; intf->pm_usage_cnt += inc_usage_cnt; + udev->last_busy = jiffies; if (inc_usage_cnt >= 0 && intf->pm_usage_cnt > 0) { if (udev->state == USB_STATE_SUSPENDED) status = usb_resume_both(udev); if (status != 0) intf->pm_usage_cnt -= inc_usage_cnt; - else if (inc_usage_cnt) + else udev->last_busy = jiffies; } else if (inc_usage_cnt <= 0 && intf->pm_usage_cnt <= 0) { - if (inc_usage_cnt) - udev->last_busy = jiffies; status = usb_suspend_both(udev, PMSG_SUSPEND); } } @@ -1361,8 +1394,8 @@ void usb_autopm_put_interface(struct usb_interface *intf) int status; status = usb_autopm_do_interface(intf, -1); - // dev_dbg(&intf->dev, "%s: status %d cnt %d\n", - // __FUNCTION__, status, intf->pm_usage_cnt); + dev_vdbg(&intf->dev, "%s: status %d cnt %d\n", + __FUNCTION__, status, intf->pm_usage_cnt); } EXPORT_SYMBOL_GPL(usb_autopm_put_interface); @@ -1405,8 +1438,8 @@ int usb_autopm_get_interface(struct usb_interface *intf) int status; status = usb_autopm_do_interface(intf, 1); - // dev_dbg(&intf->dev, "%s: status %d cnt %d\n", - // __FUNCTION__, status, intf->pm_usage_cnt); + dev_vdbg(&intf->dev, "%s: status %d cnt %d\n", + __FUNCTION__, status, intf->pm_usage_cnt); return status; } EXPORT_SYMBOL_GPL(usb_autopm_get_interface); @@ -1427,8 +1460,8 @@ int usb_autopm_set_interface(struct usb_interface *intf) int status; status = usb_autopm_do_interface(intf, 0); - // dev_dbg(&intf->dev, "%s: status %d cnt %d\n", - // __FUNCTION__, status, intf->pm_usage_cnt); + dev_vdbg(&intf->dev, "%s: status %d cnt %d\n", + __FUNCTION__, status, intf->pm_usage_cnt); return status; } EXPORT_SYMBOL_GPL(usb_autopm_set_interface); @@ -1508,8 +1541,15 @@ static int usb_resume(struct device *dev) if (!is_usb_device(dev)) /* Ignore PM for interfaces */ return 0; udev = to_usb_device(dev); - if (udev->autoresume_disabled) - return -EPERM; + + /* If autoresume is disabled then we also want to prevent resume + * during system wakeup. However, a "persistent-device" reset-resume + * after power loss counts as a wakeup event. So allow a + * reset-resume to occur if remote wakeup is enabled. */ + if (udev->autoresume_disabled) { + if (!(udev->reset_resume && udev->do_remote_wakeup)) + return -EPERM; + } return usb_external_resume_device(udev); } diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c index 01c857ac27af..5d860bc9b421 100644 --- a/drivers/usb/core/file.c +++ b/drivers/usb/core/file.c @@ -16,15 +16,15 @@ */ #include <linux/module.h> -#include <linux/spinlock.h> #include <linux/errno.h> +#include <linux/rwsem.h> #include <linux/usb.h> #include "usb.h" #define MAX_USB_MINORS 256 static const struct file_operations *usb_minors[MAX_USB_MINORS]; -static DEFINE_SPINLOCK(minor_lock); +static DECLARE_RWSEM(minor_rwsem); static int usb_open(struct inode * inode, struct file * file) { @@ -33,14 +33,11 @@ static int usb_open(struct inode * inode, struct file * file) int err = -ENODEV; const struct file_operations *old_fops, *new_fops = NULL; - spin_lock (&minor_lock); + down_read(&minor_rwsem); c = usb_minors[minor]; - if (!c || !(new_fops = fops_get(c))) { - spin_unlock(&minor_lock); - return err; - } - spin_unlock(&minor_lock); + if (!c || !(new_fops = fops_get(c))) + goto done; old_fops = file->f_op; file->f_op = new_fops; @@ -52,6 +49,8 @@ static int usb_open(struct inode * inode, struct file * file) file->f_op = fops_get(old_fops); } fops_put(old_fops); + done: + up_read(&minor_rwsem); return err; } @@ -166,7 +165,7 @@ int usb_register_dev(struct usb_interface *intf, if (class_driver->fops == NULL) goto exit; - spin_lock (&minor_lock); + down_write(&minor_rwsem); for (minor = minor_base; minor < MAX_USB_MINORS; ++minor) { if (usb_minors[minor]) continue; @@ -176,7 +175,7 @@ int usb_register_dev(struct usb_interface *intf, retval = 0; break; } - spin_unlock (&minor_lock); + up_write(&minor_rwsem); if (retval) goto exit; @@ -197,9 +196,9 @@ int usb_register_dev(struct usb_interface *intf, intf->usb_dev = device_create(usb_class->class, &intf->dev, MKDEV(USB_MAJOR, minor), "%s", temp); if (IS_ERR(intf->usb_dev)) { - spin_lock (&minor_lock); + down_write(&minor_rwsem); usb_minors[intf->minor] = NULL; - spin_unlock (&minor_lock); + up_write(&minor_rwsem); retval = PTR_ERR(intf->usb_dev); } exit: @@ -236,9 +235,9 @@ void usb_deregister_dev(struct usb_interface *intf, dbg ("removing %d minor", intf->minor); - spin_lock (&minor_lock); + down_write(&minor_rwsem); usb_minors[intf->minor] = NULL; - spin_unlock (&minor_lock); + up_write(&minor_rwsem); snprintf(name, BUS_ID_SIZE, class_driver->name, intf->minor - minor_base); device_destroy(usb_class->class, MKDEV(USB_MAJOR, intf->minor)); @@ -247,5 +246,3 @@ void usb_deregister_dev(struct usb_interface *intf, destroy_usb_class(); } EXPORT_SYMBOL(usb_deregister_dev); - - diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c index 9bbcb20e2d94..b2fc2b115256 100644 --- a/drivers/usb/core/generic.c +++ b/drivers/usb/core/generic.c @@ -19,6 +19,7 @@ #include <linux/usb.h> #include "usb.h" +#include "hcd.h" static inline const char *plural(int n) { @@ -193,16 +194,34 @@ static void generic_disconnect(struct usb_device *udev) static int generic_suspend(struct usb_device *udev, pm_message_t msg) { - /* USB devices enter SUSPEND state through their hubs, but can be - * marked for FREEZE as soon as their children are already idled. - * But those semantics are useless, so we equate the two (sigh). + int rc; + + /* Normal USB devices suspend through their upstream port. + * Root hubs don't have upstream ports to suspend, + * so we have to shut down their downstream HC-to-USB + * interfaces manually by doing a bus (or "global") suspend. */ - return usb_port_suspend(udev); + if (!udev->parent) + rc = hcd_bus_suspend(udev); + else + rc = usb_port_suspend(udev); + return rc; } static int generic_resume(struct usb_device *udev) { - return usb_port_resume(udev); + int rc; + + /* Normal USB devices resume/reset through their upstream port. + * Root hubs don't have upstream ports to resume or reset, + * so we have to start up their downstream HC-to-USB + * interfaces manually by doing a bus (or "global") resume. + */ + if (!udev->parent) + rc = hcd_bus_resume(udev); + else + rc = usb_port_resume(udev); + return rc; } #endif /* CONFIG_PM */ diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index edf4300a3f7a..5cf6d5f9acbd 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -207,7 +207,8 @@ int usb_hcd_pci_suspend (struct pci_dev *dev, pm_message_t message) * We must ignore the FREEZE vs SUSPEND distinction here, because * otherwise the swsusp will save (and restore) garbage state. */ - if (hcd->self.root_hub->dev.power.power_state.event == PM_EVENT_ON) + if (!(hcd->state == HC_STATE_SUSPENDED || + hcd->state == HC_STATE_HALT)) return -EBUSY; if (hcd->driver->suspend) { diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 8969e42434b9..42ef1d5f6c8a 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -99,12 +99,17 @@ EXPORT_SYMBOL_GPL (usb_bus_list_lock); /* used for controlling access to virtual root hubs */ static DEFINE_SPINLOCK(hcd_root_hub_lock); -/* used when updating hcd data */ -static DEFINE_SPINLOCK(hcd_data_lock); +/* used when updating an endpoint's URB list */ +static DEFINE_SPINLOCK(hcd_urb_list_lock); /* wait queue for synchronous unlinks */ DECLARE_WAIT_QUEUE_HEAD(usb_kill_urb_queue); +static inline int is_root_hub(struct usb_device *udev) +{ + return (udev->parent == NULL); +} + /*-------------------------------------------------------------------------*/ /* @@ -582,10 +587,12 @@ void usb_hcd_poll_rh_status(struct usb_hcd *hcd) } /* The USB 2.0 spec says 256 ms. This is close enough and won't - * exceed that limit if HZ is 100. */ + * exceed that limit if HZ is 100. The math is more clunky than + * maybe expected, this is to make sure that all timers for USB devices + * fire at the same time to give the CPU a break inbetween */ if (hcd->uses_new_polling ? hcd->poll_rh : (length == 0 && hcd->status_urb != NULL)) - mod_timer (&hcd->rh_timer, jiffies + msecs_to_jiffies(250)); + mod_timer (&hcd->rh_timer, (jiffies/(HZ/4) + 1) * (HZ/4)); } EXPORT_SYMBOL_GPL(usb_hcd_poll_rh_status); @@ -614,8 +621,8 @@ static int rh_queue_status (struct usb_hcd *hcd, struct urb *urb) urb->hcpriv = hcd; /* indicate it's queued */ if (!hcd->uses_new_polling) - mod_timer (&hcd->rh_timer, jiffies + - msecs_to_jiffies(250)); + mod_timer (&hcd->rh_timer, + (jiffies/(HZ/4) + 1) * (HZ/4)); /* If a status change has already occurred, report it ASAP */ else if (hcd->poll_pending) @@ -901,17 +908,31 @@ EXPORT_SYMBOL (usb_calc_bus_time); /*-------------------------------------------------------------------------*/ -static void urb_unlink (struct urb *urb) +static void urb_unlink(struct usb_hcd *hcd, struct urb *urb) { unsigned long flags; /* clear all state linking urb to this dev (and hcd) */ - - spin_lock_irqsave (&hcd_data_lock, flags); + spin_lock_irqsave(&hcd_urb_list_lock, flags); list_del_init (&urb->urb_list); - spin_unlock_irqrestore (&hcd_data_lock, flags); -} + spin_unlock_irqrestore(&hcd_urb_list_lock, flags); + if (hcd->self.uses_dma && !is_root_hub(urb->dev)) { + if (usb_pipecontrol (urb->pipe) + && !(urb->transfer_flags & URB_NO_SETUP_DMA_MAP)) + dma_unmap_single (hcd->self.controller, urb->setup_dma, + sizeof (struct usb_ctrlrequest), + DMA_TO_DEVICE); + if (urb->transfer_buffer_length != 0 + && !(urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)) + dma_unmap_single (hcd->self.controller, + urb->transfer_dma, + urb->transfer_buffer_length, + usb_pipein (urb->pipe) + ? DMA_FROM_DEVICE + : DMA_TO_DEVICE); + } +} /* may be called in any context with a valid urb->dev usecount * caller surrenders "ownership" of urb @@ -938,7 +959,7 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags) // FIXME: verify that quiescing hc works right (RH cleans up) - spin_lock_irqsave (&hcd_data_lock, flags); + spin_lock_irqsave(&hcd_urb_list_lock, flags); ep = (usb_pipein(urb->pipe) ? urb->dev->ep_in : urb->dev->ep_out) [usb_pipeendpoint(urb->pipe)]; if (unlikely (!ep)) @@ -948,24 +969,14 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags) else switch (hcd->state) { case HC_STATE_RUNNING: case HC_STATE_RESUMING: -doit: list_add_tail (&urb->urb_list, &ep->urb_list); status = 0; break; - case HC_STATE_SUSPENDED: - /* HC upstream links (register access, wakeup signaling) can work - * even when the downstream links (and DMA etc) are quiesced; let - * usbcore talk to the root hub. - */ - if (hcd->self.controller->power.power_state.event == PM_EVENT_ON - && urb->dev->parent == NULL) - goto doit; - /* FALL THROUGH */ default: status = -ESHUTDOWN; break; } - spin_unlock_irqrestore (&hcd_data_lock, flags); + spin_unlock_irqrestore(&hcd_urb_list_lock, flags); if (status) { INIT_LIST_HEAD (&urb->urb_list); usbmon_urb_submit_error(&hcd->self, urb, status); @@ -979,7 +990,7 @@ doit: urb = usb_get_urb (urb); atomic_inc (&urb->use_count); - if (urb->dev == hcd->self.root_hub) { + if (is_root_hub(urb->dev)) { /* NOTE: requirement on hub callers (usbfs and the hub * driver, for now) that URBs' urb->transfer_buffer be * valid and usb_buffer_{sync,unmap}() not be needed, since @@ -1014,7 +1025,7 @@ doit: status = hcd->driver->urb_enqueue (hcd, ep, urb, mem_flags); done: if (unlikely (status)) { - urb_unlink (urb); + urb_unlink(hcd, urb); atomic_dec (&urb->use_count); if (urb->reject) wake_up (&usb_kill_urb_queue); @@ -1026,18 +1037,6 @@ done: /*-------------------------------------------------------------------------*/ -/* called in any context */ -int usb_hcd_get_frame_number (struct usb_device *udev) -{ - struct usb_hcd *hcd = bus_to_hcd(udev->bus); - - if (!HC_IS_RUNNING (hcd->state)) - return -ESHUTDOWN; - return hcd->driver->get_frame_number (hcd); -} - -/*-------------------------------------------------------------------------*/ - /* this makes the hcd giveback() the urb more quickly, by kicking it * off hardware queues (which may take a while) and returning it as * soon as practical. we've already set up the urb's return status, @@ -1048,7 +1047,7 @@ unlink1 (struct usb_hcd *hcd, struct urb *urb) { int value; - if (urb->dev == hcd->self.root_hub) + if (is_root_hub(urb->dev)) value = usb_rh_urb_dequeue (hcd, urb); else { @@ -1096,11 +1095,11 @@ int usb_hcd_unlink_urb (struct urb *urb, int status) * that it was submitted. But as a rule it can't know whether or * not it's already been unlinked ... so we respect the reversed * lock sequence needed for the usb_hcd_giveback_urb() code paths - * (urb lock, then hcd_data_lock) in case some other CPU is now + * (urb lock, then hcd_urb_list_lock) in case some other CPU is now * unlinking it. */ spin_lock_irqsave (&urb->lock, flags); - spin_lock (&hcd_data_lock); + spin_lock(&hcd_urb_list_lock); sys = &urb->dev->dev; hcd = bus_to_hcd(urb->dev->bus); @@ -1132,17 +1131,16 @@ int usb_hcd_unlink_urb (struct urb *urb, int status) * finish unlinking the initial failed usb_set_address() * or device descriptor fetch. */ - if (!test_bit(HCD_FLAG_SAW_IRQ, &hcd->flags) - && hcd->self.root_hub != urb->dev) { + if (!test_bit(HCD_FLAG_SAW_IRQ, &hcd->flags) && + !is_root_hub(urb->dev)) { dev_warn (hcd->self.controller, "Unlink after no-IRQ? " - "Controller is probably using the wrong IRQ." - "\n"); + "Controller is probably using the wrong IRQ.\n"); set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags); } urb->status = status; - spin_unlock (&hcd_data_lock); + spin_unlock(&hcd_urb_list_lock); spin_unlock_irqrestore (&urb->lock, flags); retval = unlink1 (hcd, urb); @@ -1151,7 +1149,7 @@ int usb_hcd_unlink_urb (struct urb *urb, int status) return retval; done: - spin_unlock (&hcd_data_lock); + spin_unlock(&hcd_urb_list_lock); spin_unlock_irqrestore (&urb->lock, flags); if (retval != -EIDRM && sys && sys->driver) dev_dbg (sys, "hcd_unlink_urb %p fail %d\n", urb, retval); @@ -1160,6 +1158,35 @@ done: /*-------------------------------------------------------------------------*/ +/** + * usb_hcd_giveback_urb - return URB from HCD to device driver + * @hcd: host controller returning the URB + * @urb: urb being returned to the USB device driver. + * Context: in_interrupt() + * + * This hands the URB from HCD to its USB device driver, using its + * completion function. The HCD has freed all per-urb resources + * (and is done using urb->hcpriv). It also released all HCD locks; + * the device driver won't cause problems if it frees, modifies, + * or resubmits this URB. + */ +void usb_hcd_giveback_urb (struct usb_hcd *hcd, struct urb *urb) +{ + urb_unlink(hcd, urb); + usbmon_urb_complete (&hcd->self, urb); + usb_unanchor_urb(urb); + + /* pass ownership to the completion handler */ + urb->complete (urb); + atomic_dec (&urb->use_count); + if (unlikely (urb->reject)) + wake_up (&usb_kill_urb_queue); + usb_put_urb (urb); +} +EXPORT_SYMBOL (usb_hcd_giveback_urb); + +/*-------------------------------------------------------------------------*/ + /* disables the endpoint: cancels any pending urbs, then synchronizes with * the hcd to make sure all endpoint state is gone from hardware, and then * waits until the endpoint's queue is completely drained. use for @@ -1179,7 +1206,7 @@ void usb_hcd_endpoint_disable (struct usb_device *udev, /* ep is already gone from udev->ep_{in,out}[]; no more submits */ rescan: - spin_lock (&hcd_data_lock); + spin_lock(&hcd_urb_list_lock); list_for_each_entry (urb, &ep->urb_list, urb_list) { int tmp; @@ -1187,7 +1214,7 @@ rescan: if (urb->status != -EINPROGRESS) continue; usb_get_urb (urb); - spin_unlock (&hcd_data_lock); + spin_unlock(&hcd_urb_list_lock); spin_lock (&urb->lock); tmp = urb->status; @@ -1216,7 +1243,7 @@ rescan: /* list contents may have changed */ goto rescan; } - spin_unlock (&hcd_data_lock); + spin_unlock(&hcd_urb_list_lock); local_irq_enable (); /* synchronize with the hardware, so old configuration state @@ -1233,7 +1260,7 @@ rescan: * endpoint_disable methods. */ while (!list_empty (&ep->urb_list)) { - spin_lock_irq (&hcd_data_lock); + spin_lock_irq(&hcd_urb_list_lock); /* The list may have changed while we acquired the spinlock */ urb = NULL; @@ -1242,7 +1269,7 @@ rescan: urb_list); usb_get_urb (urb); } - spin_unlock_irq (&hcd_data_lock); + spin_unlock_irq(&hcd_urb_list_lock); if (urb) { usb_kill_urb (urb); @@ -1253,44 +1280,73 @@ rescan: /*-------------------------------------------------------------------------*/ +/* called in any context */ +int usb_hcd_get_frame_number (struct usb_device *udev) +{ + struct usb_hcd *hcd = bus_to_hcd(udev->bus); + + if (!HC_IS_RUNNING (hcd->state)) + return -ESHUTDOWN; + return hcd->driver->get_frame_number (hcd); +} + +/*-------------------------------------------------------------------------*/ + #ifdef CONFIG_PM -int hcd_bus_suspend (struct usb_bus *bus) +int hcd_bus_suspend(struct usb_device *rhdev) { - struct usb_hcd *hcd; - int status; + struct usb_hcd *hcd = container_of(rhdev->bus, struct usb_hcd, self); + int status; + int old_state = hcd->state; - hcd = container_of (bus, struct usb_hcd, self); - if (!hcd->driver->bus_suspend) - return -ENOENT; - hcd->state = HC_STATE_QUIESCING; - status = hcd->driver->bus_suspend (hcd); - if (status == 0) + dev_dbg(&rhdev->dev, "bus %s%s\n", + rhdev->auto_pm ? "auto-" : "", "suspend"); + if (!hcd->driver->bus_suspend) { + status = -ENOENT; + } else { + hcd->state = HC_STATE_QUIESCING; + status = hcd->driver->bus_suspend(hcd); + } + if (status == 0) { + usb_set_device_state(rhdev, USB_STATE_SUSPENDED); hcd->state = HC_STATE_SUSPENDED; - else - dev_dbg(&bus->root_hub->dev, "%s fail, err %d\n", + } else { + hcd->state = old_state; + dev_dbg(&rhdev->dev, "bus %s fail, err %d\n", "suspend", status); + } return status; } -int hcd_bus_resume (struct usb_bus *bus) +int hcd_bus_resume(struct usb_device *rhdev) { - struct usb_hcd *hcd; - int status; + struct usb_hcd *hcd = container_of(rhdev->bus, struct usb_hcd, self); + int status; + int old_state = hcd->state; - hcd = container_of (bus, struct usb_hcd, self); + dev_dbg(&rhdev->dev, "usb %s%s\n", + rhdev->auto_pm ? "auto-" : "", "resume"); if (!hcd->driver->bus_resume) return -ENOENT; if (hcd->state == HC_STATE_RUNNING) return 0; + hcd->state = HC_STATE_RESUMING; - status = hcd->driver->bus_resume (hcd); - if (status == 0) + status = hcd->driver->bus_resume(hcd); + if (status == 0) { + /* TRSMRCY = 10 msec */ + msleep(10); + usb_set_device_state(rhdev, rhdev->actconfig + ? USB_STATE_CONFIGURED + : USB_STATE_ADDRESS); hcd->state = HC_STATE_RUNNING; - else { - dev_dbg(&bus->root_hub->dev, "%s fail, err %d\n", + } else { + hcd->state = old_state; + dev_dbg(&rhdev->dev, "bus %s fail, err %d\n", "resume", status); - usb_hc_died(hcd); + if (status != -ESHUTDOWN) + usb_hc_died(hcd); } return status; } @@ -1371,55 +1427,6 @@ EXPORT_SYMBOL (usb_bus_start_enum); /*-------------------------------------------------------------------------*/ /** - * usb_hcd_giveback_urb - return URB from HCD to device driver - * @hcd: host controller returning the URB - * @urb: urb being returned to the USB device driver. - * Context: in_interrupt() - * - * This hands the URB from HCD to its USB device driver, using its - * completion function. The HCD has freed all per-urb resources - * (and is done using urb->hcpriv). It also released all HCD locks; - * the device driver won't cause problems if it frees, modifies, - * or resubmits this URB. - */ -void usb_hcd_giveback_urb (struct usb_hcd *hcd, struct urb *urb) -{ - int at_root_hub; - - at_root_hub = (urb->dev == hcd->self.root_hub); - urb_unlink (urb); - - /* lower level hcd code should use *_dma exclusively if the - * host controller does DMA */ - if (hcd->self.uses_dma && !at_root_hub) { - if (usb_pipecontrol (urb->pipe) - && !(urb->transfer_flags & URB_NO_SETUP_DMA_MAP)) - dma_unmap_single (hcd->self.controller, urb->setup_dma, - sizeof (struct usb_ctrlrequest), - DMA_TO_DEVICE); - if (urb->transfer_buffer_length != 0 - && !(urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)) - dma_unmap_single (hcd->self.controller, - urb->transfer_dma, - urb->transfer_buffer_length, - usb_pipein (urb->pipe) - ? DMA_FROM_DEVICE - : DMA_TO_DEVICE); - } - - usbmon_urb_complete (&hcd->self, urb); - /* pass ownership to the completion handler */ - urb->complete (urb); - atomic_dec (&urb->use_count); - if (unlikely (urb->reject)) - wake_up (&usb_kill_urb_queue); - usb_put_urb (urb); -} -EXPORT_SYMBOL (usb_hcd_giveback_urb); - -/*-------------------------------------------------------------------------*/ - -/** * usb_hcd_irq - hook IRQs to HCD framework (bus glue) * @irq: the IRQ being raised * @__hcd: pointer to the HCD whose IRQ is being signaled diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h index ef50fa494e47..b5ebb73c2332 100644 --- a/drivers/usb/core/hcd.h +++ b/drivers/usb/core/hcd.h @@ -364,23 +364,13 @@ extern int usb_find_interface_driver (struct usb_device *dev, #ifdef CONFIG_PM extern void usb_hcd_resume_root_hub (struct usb_hcd *hcd); extern void usb_root_hub_lost_power (struct usb_device *rhdev); -extern int hcd_bus_suspend (struct usb_bus *bus); -extern int hcd_bus_resume (struct usb_bus *bus); +extern int hcd_bus_suspend(struct usb_device *rhdev); +extern int hcd_bus_resume(struct usb_device *rhdev); #else static inline void usb_hcd_resume_root_hub(struct usb_hcd *hcd) { return; } - -static inline int hcd_bus_suspend(struct usb_bus *bus) -{ - return 0; -} - -static inline int hcd_bus_resume (struct usb_bus *bus) -{ - return 0; -} #endif /* CONFIG_PM */ /* diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index a1c1a11dd9be..f7b337feb3ea 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -31,9 +31,16 @@ #include "hcd.h" #include "hub.h" +#ifdef CONFIG_USB_PERSIST +#define USB_PERSIST 1 +#else +#define USB_PERSIST 0 +#endif + struct usb_hub { struct device *intfdev; /* the "interface" device */ struct usb_device *hdev; + struct kref kref; struct urb *urb; /* for interrupt polling pipe */ /* buffer for urb ... with extra space in case of babble */ @@ -66,6 +73,7 @@ struct usb_hub { unsigned limited_power:1; unsigned quiescing:1; unsigned activating:1; + unsigned disconnected:1; unsigned has_indicators:1; u8 indicator[USB_MAXCHILDREN]; @@ -321,7 +329,7 @@ static void kick_khubd(struct usb_hub *hub) to_usb_interface(hub->intfdev)->pm_usage_cnt = 1; spin_lock_irqsave(&hub_event_lock, flags); - if (list_empty(&hub->event_list)) { + if (!hub->disconnected & list_empty(&hub->event_list)) { list_add_tail(&hub->event_list, &hub_event_list); wake_up(&khubd_wait); } @@ -330,6 +338,7 @@ static void kick_khubd(struct usb_hub *hub) void usb_kick_khubd(struct usb_device *hdev) { + /* FIXME: What if hdev isn't bound to the hub driver? */ kick_khubd(hdev_to_hub(hdev)); } @@ -400,9 +409,10 @@ static void hub_tt_kevent (struct work_struct *work) struct usb_hub *hub = container_of(work, struct usb_hub, tt.kevent); unsigned long flags; + int limit = 100; spin_lock_irqsave (&hub->tt.lock, flags); - while (!list_empty (&hub->tt.clear_list)) { + while (--limit && !list_empty (&hub->tt.clear_list)) { struct list_head *temp; struct usb_tt_clear *clear; struct usb_device *hdev = hub->hdev; @@ -550,48 +560,68 @@ static int hub_hub_status(struct usb_hub *hub, static int hub_port_disable(struct usb_hub *hub, int port1, int set_state) { struct usb_device *hdev = hub->hdev; - int ret; + int ret = 0; - if (hdev->children[port1-1] && set_state) { + if (hdev->children[port1-1] && set_state) usb_set_device_state(hdev->children[port1-1], USB_STATE_NOTATTACHED); - } - ret = clear_port_feature(hdev, port1, USB_PORT_FEAT_ENABLE); + if (!hub->error) + ret = clear_port_feature(hdev, port1, USB_PORT_FEAT_ENABLE); if (ret) dev_err(hub->intfdev, "cannot disable port %d (err = %d)\n", - port1, ret); - + port1, ret); return ret; } +/* + * Disable a port and mark a logical connnect-change event, so that some + * time later khubd will disconnect() any existing usb_device on the port + * and will re-enumerate if there actually is a device attached. + */ +static void hub_port_logical_disconnect(struct usb_hub *hub, int port1) +{ + dev_dbg(hub->intfdev, "logical disconnect on port %d\n", port1); + hub_port_disable(hub, port1, 1); + + /* FIXME let caller ask to power down the port: + * - some devices won't enumerate without a VBUS power cycle + * - SRP saves power that way + * - ... new call, TBD ... + * That's easy if this hub can switch power per-port, and + * khubd reactivates the port later (timer, SRP, etc). + * Powerdown must be optional, because of reset/DFU. + */ + + set_bit(port1, hub->change_bits); + kick_khubd(hub); +} /* caller has locked the hub device */ -static void hub_pre_reset(struct usb_interface *intf) +static int hub_pre_reset(struct usb_interface *intf) { struct usb_hub *hub = usb_get_intfdata(intf); struct usb_device *hdev = hub->hdev; - int port1; + int i; - for (port1 = 1; port1 <= hdev->maxchild; ++port1) { - if (hdev->children[port1 - 1]) { - usb_disconnect(&hdev->children[port1 - 1]); - if (hub->error == 0) - hub_port_disable(hub, port1, 0); - } + /* Disconnect all the children */ + for (i = 0; i < hdev->maxchild; ++i) { + if (hdev->children[i]) + usb_disconnect(&hdev->children[i]); } hub_quiesce(hub); + return 0; } /* caller has locked the hub device */ -static void hub_post_reset(struct usb_interface *intf) +static int hub_post_reset(struct usb_interface *intf) { struct usb_hub *hub = usb_get_intfdata(intf); - hub_activate(hub); hub_power_on(hub); + hub_activate(hub); + return 0; } - static int hub_configure(struct usb_hub *hub, struct usb_endpoint_descriptor *endpoint) { @@ -845,43 +875,42 @@ fail: return ret; } +static void hub_release(struct kref *kref) +{ + struct usb_hub *hub = container_of(kref, struct usb_hub, kref); + + usb_put_intf(to_usb_interface(hub->intfdev)); + kfree(hub); +} + static unsigned highspeed_hubs; static void hub_disconnect(struct usb_interface *intf) { struct usb_hub *hub = usb_get_intfdata (intf); - struct usb_device *hdev; + + /* Take the hub off the event list and don't let it be added again */ + spin_lock_irq(&hub_event_lock); + list_del_init(&hub->event_list); + hub->disconnected = 1; + spin_unlock_irq(&hub_event_lock); /* Disconnect all children and quiesce the hub */ hub->error = 0; hub_pre_reset(intf); usb_set_intfdata (intf, NULL); - hdev = hub->hdev; - if (hdev->speed == USB_SPEED_HIGH) + if (hub->hdev->speed == USB_SPEED_HIGH) highspeed_hubs--; usb_free_urb(hub->urb); - hub->urb = NULL; - - spin_lock_irq(&hub_event_lock); - list_del_init(&hub->event_list); - spin_unlock_irq(&hub_event_lock); - kfree(hub->descriptor); - hub->descriptor = NULL; - kfree(hub->status); - hub->status = NULL; - - if (hub->buffer) { - usb_buffer_free(hdev, sizeof(*hub->buffer), hub->buffer, - hub->buffer_dma); - hub->buffer = NULL; - } + usb_buffer_free(hub->hdev, sizeof(*hub->buffer), hub->buffer, + hub->buffer_dma); - kfree(hub); + kref_put(&hub->kref, hub_release); } static int hub_probe(struct usb_interface *intf, const struct usb_device_id *id) @@ -929,10 +958,12 @@ descriptor_error: return -ENOMEM; } + kref_init(&hub->kref); INIT_LIST_HEAD(&hub->event_list); hub->intfdev = &intf->dev; hub->hdev = hdev; INIT_DELAYED_WORK(&hub->leds, led_work); + usb_get_intf(intf); usb_set_intfdata (intf, hub); intf->needs_remote_wakeup = 1; @@ -982,49 +1013,6 @@ hub_ioctl(struct usb_interface *intf, unsigned int code, void *user_data) } -/* grab device/port lock, returning index of that port (zero based). - * protects the upstream link used by this device from concurrent - * tree operations like suspend, resume, reset, and disconnect, which - * apply to everything downstream of a given port. - */ -static int locktree(struct usb_device *udev) -{ - int t; - struct usb_device *hdev; - - if (!udev) - return -ENODEV; - - /* root hub is always the first lock in the series */ - hdev = udev->parent; - if (!hdev) { - usb_lock_device(udev); - return 0; - } - - /* on the path from root to us, lock everything from - * top down, dropping parent locks when not needed - */ - t = locktree(hdev); - if (t < 0) - return t; - - /* everything is fail-fast once disconnect - * processing starts - */ - if (udev->state == USB_STATE_NOTATTACHED) { - usb_unlock_device(hdev); - return -ENODEV; - } - - /* when everyone grabs locks top->bottom, - * non-overlapping work may be concurrent - */ - usb_lock_device(udev); - usb_unlock_device(hdev); - return udev->portnum; -} - static void recursively_mark_NOTATTACHED(struct usb_device *udev) { int i; @@ -1089,46 +1077,6 @@ void usb_set_device_state(struct usb_device *udev, spin_unlock_irqrestore(&device_state_lock, flags); } - -#ifdef CONFIG_PM - -/** - * usb_root_hub_lost_power - called by HCD if the root hub lost Vbus power - * @rhdev: struct usb_device for the root hub - * - * The USB host controller driver calls this function when its root hub - * is resumed and Vbus power has been interrupted or the controller - * has been reset. The routine marks all the children of the root hub - * as NOTATTACHED and marks logical connect-change events on their ports. - */ -void usb_root_hub_lost_power(struct usb_device *rhdev) -{ - struct usb_hub *hub; - int port1; - unsigned long flags; - - dev_warn(&rhdev->dev, "root hub lost power or was reset\n"); - - /* Make sure no potential wakeup events get lost, - * by forcing the root hub to be resumed. - */ - rhdev->dev.power.prev_state.event = PM_EVENT_ON; - - spin_lock_irqsave(&device_state_lock, flags); - hub = hdev_to_hub(rhdev); - for (port1 = 1; port1 <= rhdev->maxchild; ++port1) { - if (rhdev->children[port1 - 1]) { - recursively_mark_NOTATTACHED( - rhdev->children[port1 - 1]); - set_bit(port1, hub->change_bits); - } - } - spin_unlock_irqrestore(&device_state_lock, flags); -} -EXPORT_SYMBOL_GPL(usb_root_hub_lost_power); - -#endif /* CONFIG_PM */ - static void choose_address(struct usb_device *udev) { int devnum; @@ -1269,7 +1217,6 @@ static inline void show_string(struct usb_device *udev, char *id, char *string) #ifdef CONFIG_USB_OTG #include "otg_whitelist.h" -static int __usb_port_suspend(struct usb_device *, int port1); #endif /** @@ -1375,11 +1322,11 @@ int usb_new_device(struct usb_device *udev) * (Includes HNP test device.) */ if (udev->bus->b_hnp_enable || udev->bus->is_b_host) { - err = __usb_port_suspend(udev, udev->bus->otg_port); + err = usb_port_suspend(udev); if (err < 0) dev_dbg(&udev->dev, "HNP fail, %d\n", err); } - err = -ENODEV; + err = -ENOTSUPP; goto fail; } #endif @@ -1478,9 +1425,9 @@ static int hub_port_wait_reset(struct usb_hub *hub, int port1, if (!(portstatus & USB_PORT_STAT_CONNECTION)) return -ENOTCONN; - /* bomb out completely if something weird happened */ + /* bomb out completely if the connection bounced */ if ((portchange & USB_PORT_STAT_C_CONNECTION)) - return -EINVAL; + return -ENOTCONN; /* if we`ve finished resetting, then break out of the loop */ if (!(portstatus & USB_PORT_STAT_RESET) && @@ -1559,34 +1506,24 @@ static int hub_port_reset(struct usb_hub *hub, int port1, return status; } -/* - * Disable a port and mark a logical connnect-change event, so that some - * time later khubd will disconnect() any existing usb_device on the port - * and will re-enumerate if there actually is a device attached. - */ -static void hub_port_logical_disconnect(struct usb_hub *hub, int port1) -{ - dev_dbg(hub->intfdev, "logical disconnect on port %d\n", port1); - hub_port_disable(hub, port1, 1); - - /* FIXME let caller ask to power down the port: - * - some devices won't enumerate without a VBUS power cycle - * - SRP saves power that way - * - ... new call, TBD ... - * That's easy if this hub can switch power per-port, and - * khubd reactivates the port later (timer, SRP, etc). - * Powerdown must be optional, because of reset/DFU. - */ - - set_bit(port1, hub->change_bits); - kick_khubd(hub); -} - #ifdef CONFIG_PM #ifdef CONFIG_USB_SUSPEND /* + * usb_port_suspend - suspend a usb device's upstream port + * @udev: device that's no longer in active use, not a root hub + * Context: must be able to sleep; device not locked; pm locks held + * + * Suspends a USB device that isn't in active use, conserving power. + * Devices may wake out of a suspend, if anything important happens, + * using the remote wakeup mechanism. They may also be taken out of + * suspend by the host, using usb_port_resume(). It's also routine + * to disconnect devices while they are suspended. + * + * This only affects the USB hardware for a device; its interfaces + * (and, for hubs, child devices) must already have been suspended. + * * Selective port suspend reduces power; most suspended devices draw * less than 500 uA. It's also used in OTG, along with remote wakeup. * All devices below the suspended port are also suspended. @@ -1595,11 +1532,35 @@ static void hub_port_logical_disconnect(struct usb_hub *hub, int port1) * also support "remote wakeup", where the device can activate the USB * tree above them to deliver data, such as a keypress or packet. In * some cases, this wakes the USB host. + * + * Suspending OTG devices may trigger HNP, if that's been enabled + * between a pair of dual-role devices. That will change roles, such + * as from A-Host to A-Peripheral or from B-Host back to B-Peripheral. + * + * Devices on USB hub ports have only one "suspend" state, corresponding + * to ACPI D2, "may cause the device to lose some context". + * State transitions include: + * + * - suspend, resume ... when the VBUS power link stays live + * - suspend, disconnect ... VBUS lost + * + * Once VBUS drop breaks the circuit, the port it's using has to go through + * normal re-enumeration procedures, starting with enabling VBUS power. + * Other than re-initializing the hub (plug/unplug, except for root hubs), + * Linux (2.6) currently has NO mechanisms to initiate that: no khubd + * timer, no SRP, no requests through sysfs. + * + * If CONFIG_USB_SUSPEND isn't enabled, devices only really suspend when + * the root hub for their bus goes into global suspend ... so we don't + * (falsely) update the device power state to say it suspended. + * + * Returns 0 on success, else negative errno. */ -static int hub_port_suspend(struct usb_hub *hub, int port1, - struct usb_device *udev) +int usb_port_suspend(struct usb_device *udev) { - int status; + struct usb_hub *hub = hdev_to_hub(udev->parent); + int port1 = udev->portnum; + int status; // dev_dbg(hub->intfdev, "suspend port %d\n", port1); @@ -1616,17 +1577,15 @@ static int hub_port_suspend(struct usb_hub *hub, int port1, NULL, 0, USB_CTRL_SET_TIMEOUT); if (status) - dev_dbg(&udev->dev, - "won't remote wakeup, status %d\n", - status); + dev_dbg(&udev->dev, "won't remote wakeup, status %d\n", + status); } /* see 7.1.7.6 */ status = set_port_feature(hub->hdev, port1, USB_PORT_FEAT_SUSPEND); if (status) { - dev_dbg(hub->intfdev, - "can't suspend port %d, status %d\n", - port1, status); + dev_dbg(hub->intfdev, "can't suspend port %d, status %d\n", + port1, status); /* paranoia: "should not happen" */ (void) usb_control_msg(udev, usb_sndctrlpipe(udev, 0), USB_REQ_CLEAR_FEATURE, USB_RECIP_DEVICE, @@ -1644,85 +1603,24 @@ static int hub_port_suspend(struct usb_hub *hub, int port1, } /* - * Devices on USB hub ports have only one "suspend" state, corresponding - * to ACPI D2, "may cause the device to lose some context". - * State transitions include: - * - * - suspend, resume ... when the VBUS power link stays live - * - suspend, disconnect ... VBUS lost - * - * Once VBUS drop breaks the circuit, the port it's using has to go through - * normal re-enumeration procedures, starting with enabling VBUS power. - * Other than re-initializing the hub (plug/unplug, except for root hubs), - * Linux (2.6) currently has NO mechanisms to initiate that: no khubd - * timer, no SRP, no requests through sysfs. - * - * If CONFIG_USB_SUSPEND isn't enabled, devices only really suspend when - * the root hub for their bus goes into global suspend ... so we don't - * (falsely) update the device power state to say it suspended. - */ -static int __usb_port_suspend (struct usb_device *udev, int port1) -{ - int status = 0; - - /* caller owns the udev device lock */ - if (port1 < 0) - return port1; - - /* we change the device's upstream USB link, - * but root hubs have no upstream USB link. - */ - if (udev->parent) - status = hub_port_suspend(hdev_to_hub(udev->parent), port1, - udev); - else { - dev_dbg(&udev->dev, "usb %ssuspend\n", - udev->auto_pm ? "auto-" : ""); - usb_set_device_state(udev, USB_STATE_SUSPENDED); - } - return status; -} - -/* - * usb_port_suspend - suspend a usb device's upstream port - * @udev: device that's no longer in active use - * Context: must be able to sleep; device not locked; pm locks held - * - * Suspends a USB device that isn't in active use, conserving power. - * Devices may wake out of a suspend, if anything important happens, - * using the remote wakeup mechanism. They may also be taken out of - * suspend by the host, using usb_port_resume(). It's also routine - * to disconnect devices while they are suspended. - * - * This only affects the USB hardware for a device; its interfaces - * (and, for hubs, child devices) must already have been suspended. - * - * Suspending OTG devices may trigger HNP, if that's been enabled - * between a pair of dual-role devices. That will change roles, such - * as from A-Host to A-Peripheral or from B-Host back to B-Peripheral. - * - * Returns 0 on success, else negative errno. - */ -int usb_port_suspend(struct usb_device *udev) -{ - return __usb_port_suspend(udev, udev->portnum); -} - -/* * If the USB "suspend" state is in use (rather than "global suspend"), * many devices will be individually taken out of suspend state using - * special" resume" signaling. These routines kick in shortly after + * special "resume" signaling. This routine kicks in shortly after * hardware resume signaling is finished, either because of selective * resume (by host) or remote wakeup (by device) ... now see what changed * in the tree that's rooted at this device. + * + * If @udev->reset_resume is set then the device is reset before the + * status check is done. */ static int finish_port_resume(struct usb_device *udev) { - int status; + int status = 0; u16 devstatus; /* caller owns the udev device lock */ - dev_dbg(&udev->dev, "finish resume\n"); + dev_dbg(&udev->dev, "finish %sresume\n", + udev->reset_resume ? "reset-" : ""); /* usb ch9 identifies four variants of SUSPENDED, based on what * state the device resumes to. Linux currently won't see the @@ -1733,22 +1631,31 @@ static int finish_port_resume(struct usb_device *udev) ? USB_STATE_CONFIGURED : USB_STATE_ADDRESS); + /* 10.5.4.5 says not to reset a suspended port if the attached + * device is enabled for remote wakeup. Hence the reset + * operation is carried out here, after the port has been + * resumed. + */ + if (udev->reset_resume) + status = usb_reset_device(udev); + /* 10.5.4.5 says be sure devices in the tree are still there. * For now let's assume the device didn't go crazy on resume, * and device drivers will know about any resume quirks. */ - status = usb_get_status(udev, USB_RECIP_DEVICE, 0, &devstatus); - if (status >= 0) - status = (status == 2 ? 0 : -ENODEV); + if (status == 0) { + devstatus = 0; + status = usb_get_status(udev, USB_RECIP_DEVICE, 0, &devstatus); + if (status >= 0) + status = (status > 0 ? 0 : -ENODEV); + } - if (status) - dev_dbg(&udev->dev, - "gone after usb resume? status %d\n", - status); - else if (udev->actconfig) { + if (status) { + dev_dbg(&udev->dev, "gone after usb resume? status %d\n", + status); + } else if (udev->actconfig) { le16_to_cpus(&devstatus); - if ((devstatus & (1 << USB_DEVICE_REMOTE_WAKEUP)) - && udev->parent) { + if (devstatus & (1 << USB_DEVICE_REMOTE_WAKEUP)) { status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), USB_REQ_CLEAR_FEATURE, @@ -1761,19 +1668,52 @@ static int finish_port_resume(struct usb_device *udev) "wakeup, status %d\n", status); } status = 0; - - } else if (udev->devnum <= 0) { - dev_dbg(&udev->dev, "bogus resume!\n"); - status = -EINVAL; } return status; } -static int -hub_port_resume(struct usb_hub *hub, int port1, struct usb_device *udev) +/* + * usb_port_resume - re-activate a suspended usb device's upstream port + * @udev: device to re-activate, not a root hub + * Context: must be able to sleep; device not locked; pm locks held + * + * This will re-activate the suspended device, increasing power usage + * while letting drivers communicate again with its endpoints. + * USB resume explicitly guarantees that the power session between + * the host and the device is the same as it was when the device + * suspended. + * + * If CONFIG_USB_PERSIST and @udev->reset_resume are both set then this + * routine won't check that the port is still enabled. Furthermore, + * if @udev->reset_resume is set then finish_port_resume() above will + * reset @udev. The end result is that a broken power session can be + * recovered and @udev will appear to persist across a loss of VBUS power. + * + * For example, if a host controller doesn't maintain VBUS suspend current + * during a system sleep or is reset when the system wakes up, all the USB + * power sessions below it will be broken. This is especially troublesome + * for mass-storage devices containing mounted filesystems, since the + * device will appear to have disconnected and all the memory mappings + * to it will be lost. Using the USB_PERSIST facility, the device can be + * made to appear as if it had not disconnected. + * + * This facility is inherently dangerous. Although usb_reset_device() + * makes every effort to insure that the same device is present after the + * reset as before, it cannot provide a 100% guarantee. Furthermore it's + * quite possible for a device to remain unaltered but its media to be + * changed. If the user replaces a flash memory card while the system is + * asleep, he will have only himself to blame when the filesystem on the + * new card is corrupted and the system crashes. + * + * Returns 0 on success, else negative errno. + */ +int usb_port_resume(struct usb_device *udev) { - int status; - u16 portchange, portstatus; + struct usb_hub *hub = hdev_to_hub(udev->parent); + int port1 = udev->portnum; + int status; + u16 portchange, portstatus; + unsigned mask_flags, want_flags; /* Skip the initial Clear-Suspend step for a remote wakeup */ status = hub_port_status(hub, port1, &portstatus, &portchange); @@ -1788,30 +1728,31 @@ hub_port_resume(struct usb_hub *hub, int port1, struct usb_device *udev) status = clear_port_feature(hub->hdev, port1, USB_PORT_FEAT_SUSPEND); if (status) { - dev_dbg(hub->intfdev, - "can't resume port %d, status %d\n", - port1, status); + dev_dbg(hub->intfdev, "can't resume port %d, status %d\n", + port1, status); } else { /* drive resume for at least 20 msec */ - if (udev) - dev_dbg(&udev->dev, "usb %sresume\n", - udev->auto_pm ? "auto-" : ""); + dev_dbg(&udev->dev, "usb %sresume\n", + udev->auto_pm ? "auto-" : ""); msleep(25); -#define LIVE_FLAGS ( USB_PORT_STAT_POWER \ - | USB_PORT_STAT_ENABLE \ - | USB_PORT_STAT_CONNECTION) - /* Virtual root hubs can trigger on GET_PORT_STATUS to * stop resume signaling. Then finish the resume * sequence. */ status = hub_port_status(hub, port1, &portstatus, &portchange); -SuspendCleared: - if (status < 0 - || (portstatus & LIVE_FLAGS) != LIVE_FLAGS - || (portstatus & USB_PORT_STAT_SUSPEND) != 0 - ) { + + SuspendCleared: + if (USB_PERSIST && udev->reset_resume) + want_flags = USB_PORT_STAT_POWER + | USB_PORT_STAT_CONNECTION; + else + want_flags = USB_PORT_STAT_POWER + | USB_PORT_STAT_CONNECTION + | USB_PORT_STAT_ENABLE; + mask_flags = want_flags | USB_PORT_STAT_SUSPEND; + + if (status < 0 || (portstatus & mask_flags) != want_flags) { dev_dbg(hub->intfdev, "port %d status %04x.%04x after resume, %d\n", port1, portchange, portstatus, status); @@ -1823,51 +1764,19 @@ SuspendCleared: USB_PORT_FEAT_C_SUSPEND); /* TRSMRCY = 10 msec */ msleep(10); - if (udev) - status = finish_port_resume(udev); } } - if (status < 0) - hub_port_logical_disconnect(hub, port1); clear_bit(port1, hub->busy_bits); if (!hub->hdev->parent && !hub->busy_bits[0]) usb_enable_root_hub_irq(hub->hdev->bus); - return status; -} - -/* - * usb_port_resume - re-activate a suspended usb device's upstream port - * @udev: device to re-activate - * Context: must be able to sleep; device not locked; pm locks held - * - * This will re-activate the suspended device, increasing power usage - * while letting drivers communicate again with its endpoints. - * USB resume explicitly guarantees that the power session between - * the host and the device is the same as it was when the device - * suspended. - * - * Returns 0 on success, else negative errno. - */ -int usb_port_resume(struct usb_device *udev) -{ - int status; - - /* we change the device's upstream USB link, - * but root hubs have no upstream USB link. - */ - if (udev->parent) { - // NOTE this fails if parent is also suspended... - status = hub_port_resume(hdev_to_hub(udev->parent), - udev->portnum, udev); - } else { - dev_dbg(&udev->dev, "usb %sresume\n", - udev->auto_pm ? "auto-" : ""); + if (status == 0) status = finish_port_resume(udev); - } - if (status < 0) + if (status < 0) { dev_dbg(&udev->dev, "can't resume, status %d\n", status); + hub_port_logical_disconnect(hub, port1); + } return status; } @@ -1894,21 +1803,16 @@ int usb_port_suspend(struct usb_device *udev) return 0; } -static inline int -finish_port_resume(struct usb_device *udev) -{ - return 0; -} - -static inline int -hub_port_resume(struct usb_hub *hub, int port1, struct usb_device *udev) -{ - return 0; -} - int usb_port_resume(struct usb_device *udev) { - return 0; + int status = 0; + + /* However we may need to do a reset-resume */ + if (udev->reset_resume) { + dev_dbg(&udev->dev, "reset-resume\n"); + status = usb_reset_device(udev); + } + return status; } static inline int remote_wakeup(struct usb_device *udev) @@ -1923,7 +1827,6 @@ static int hub_suspend(struct usb_interface *intf, pm_message_t msg) struct usb_hub *hub = usb_get_intfdata (intf); struct usb_device *hdev = hub->hdev; unsigned port1; - int status = 0; /* fail if children aren't already suspended */ for (port1 = 1; port1 <= hdev->maxchild; port1++) { @@ -1949,49 +1852,75 @@ static int hub_suspend(struct usb_interface *intf, pm_message_t msg) /* stop khubd and related activity */ hub_quiesce(hub); - - /* "global suspend" of the downstream HC-to-USB interface */ - if (!hdev->parent) { - status = hcd_bus_suspend(hdev->bus); - if (status != 0) { - dev_dbg(&hdev->dev, "'global' suspend %d\n", status); - hub_activate(hub); - } - } - return status; + return 0; } static int hub_resume(struct usb_interface *intf) { struct usb_hub *hub = usb_get_intfdata (intf); - struct usb_device *hdev = hub->hdev; - int status; dev_dbg(&intf->dev, "%s\n", __FUNCTION__); - /* "global resume" of the downstream HC-to-USB interface */ - if (!hdev->parent) { - struct usb_bus *bus = hdev->bus; - if (bus) { - status = hcd_bus_resume (bus); - if (status) { - dev_dbg(&intf->dev, "'global' resume %d\n", - status); - return status; + /* tell khubd to look for changes on this hub */ + hub_activate(hub); + return 0; +} + +static int hub_reset_resume(struct usb_interface *intf) +{ + struct usb_hub *hub = usb_get_intfdata(intf); + struct usb_device *hdev = hub->hdev; + int port1; + + hub_power_on(hub); + + for (port1 = 1; port1 <= hdev->maxchild; ++port1) { + struct usb_device *child = hdev->children[port1-1]; + + if (child) { + + /* For "USB_PERSIST"-enabled children we must + * mark the child device for reset-resume and + * turn off the connect-change status to prevent + * khubd from disconnecting it later. + */ + if (USB_PERSIST && child->persist_enabled) { + child->reset_resume = 1; + clear_port_feature(hdev, port1, + USB_PORT_FEAT_C_CONNECTION); + + /* Otherwise we must disconnect the child, + * but as we may not lock the child device here + * we have to do a "logical" disconnect. + */ + } else { + hub_port_logical_disconnect(hub, port1); } - } else - return -EOPNOTSUPP; - if (status == 0) { - /* TRSMRCY = 10 msec */ - msleep(10); } } - /* tell khubd to look for changes on this hub */ hub_activate(hub); return 0; } +/** + * usb_root_hub_lost_power - called by HCD if the root hub lost Vbus power + * @rhdev: struct usb_device for the root hub + * + * The USB host controller driver calls this function when its root hub + * is resumed and Vbus power has been interrupted or the controller + * has been reset. The routine marks @rhdev as having lost power. When + * the hub driver is resumed it will take notice; if CONFIG_USB_PERSIST + * is enabled then it will carry out power-session recovery, otherwise + * it will disconnect all the child devices. + */ +void usb_root_hub_lost_power(struct usb_device *rhdev) +{ + dev_warn(&rhdev->dev, "root hub lost power or was reset\n"); + rhdev->reset_resume = 1; +} +EXPORT_SYMBOL_GPL(usb_root_hub_lost_power); + #else /* CONFIG_PM */ static inline int remote_wakeup(struct usb_device *udev) @@ -1999,8 +1928,9 @@ static inline int remote_wakeup(struct usb_device *udev) return 0; } -#define hub_suspend NULL -#define hub_resume NULL +#define hub_suspend NULL +#define hub_resume NULL +#define hub_reset_resume NULL #endif @@ -2463,19 +2393,6 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1, return; } -#ifdef CONFIG_USB_SUSPEND - /* If something is connected, but the port is suspended, wake it up. */ - if (portstatus & USB_PORT_STAT_SUSPEND) { - status = hub_port_resume(hub, port1, NULL); - if (status < 0) { - dev_dbg(hub_dev, - "can't clear suspend on port %d; %d\n", - port1, status); - goto done; - } - } -#endif - for (i = 0; i < SET_CONFIG_TRIES; i++) { struct usb_device *udev; @@ -2586,7 +2503,7 @@ loop: ep0_reinit(udev); release_address(udev); usb_put_dev(udev); - if (status == -ENOTCONN) + if ((status == -ENOTCONN) || (status == -ENOTSUPP)) break; } @@ -2627,10 +2544,12 @@ static void hub_events(void) list_del_init(tmp); hub = list_entry(tmp, struct usb_hub, event_list); - hdev = hub->hdev; - intf = to_usb_interface(hub->intfdev); - hub_dev = &intf->dev; + kref_get(&hub->kref); + spin_unlock_irq(&hub_event_lock); + hdev = hub->hdev; + hub_dev = hub->intfdev; + intf = to_usb_interface(hub_dev); dev_dbg(hub_dev, "state %d ports %d chg %04x evt %04x\n", hdev->state, hub->descriptor ? hub->descriptor->bNbrPorts @@ -2639,16 +2558,10 @@ static void hub_events(void) (u16) hub->change_bits[0], (u16) hub->event_bits[0]); - usb_get_intf(intf); - spin_unlock_irq(&hub_event_lock); - /* Lock the device, then check to see if we were * disconnected while waiting for the lock to succeed. */ - if (locktree(hdev) < 0) { - usb_put_intf(intf); - continue; - } - if (hub != usb_get_intfdata(intf)) + usb_lock_device(hdev); + if (unlikely(hub->disconnected)) goto loop; /* If the hub has died, clean up after it */ @@ -2811,13 +2724,14 @@ loop_autopm: usb_autopm_enable(intf); loop: usb_unlock_device(hdev); - usb_put_intf(intf); + kref_put(&hub->kref, hub_release); } /* end while (1) */ } static int hub_thread(void *__unused) { + set_freezable(); do { hub_events(); wait_event_interruptible(khubd_wait, @@ -2846,6 +2760,7 @@ static struct usb_driver hub_driver = { .disconnect = hub_disconnect, .suspend = hub_suspend, .resume = hub_resume, + .reset_resume = hub_reset_resume, .pre_reset = hub_pre_reset, .post_reset = hub_post_reset, .ioctl = hub_ioctl, @@ -2948,6 +2863,11 @@ static int config_descriptors_changed(struct usb_device *udev) * this from a driver probe() routine after downloading new firmware. * For calls that might not occur during probe(), drivers should lock * the device using usb_lock_device_for_reset(). + * + * Locking exception: This routine may also be called from within an + * autoresume handler. Such usage won't conflict with other tasks + * holding the device lock because these tasks should always call + * usb_autopm_resume_device(), thereby preventing any unwanted autoresume. */ int usb_reset_device(struct usb_device *udev) { @@ -2978,7 +2898,7 @@ int usb_reset_device(struct usb_device *udev) * Other endpoints will be handled by re-enumeration. */ ep0_reinit(udev); ret = hub_port_init(parent_hub, udev, port1, i); - if (ret >= 0) + if (ret >= 0 || ret == -ENOTCONN || ret == -ENODEV) break; } clear_bit(port1, parent_hub->busy_bits); @@ -3094,6 +3014,7 @@ int usb_reset_composite_device(struct usb_device *udev, drv = to_usb_driver(cintf->dev.driver); if (drv->pre_reset) (drv->pre_reset)(cintf); + /* FIXME: Unbind if pre_reset returns an error or isn't defined */ } } } @@ -3112,6 +3033,7 @@ int usb_reset_composite_device(struct usb_device *udev, drv = to_usb_driver(cintf->dev.driver); if (drv->post_reset) (drv->post_reset)(cintf); + /* FIXME: Unbind if post_reset returns an error or isn't defined */ } if (cintf != iface) up(&cintf->dev.sem); diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 68ce2de54bda..d8f7b089a8f0 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -18,9 +18,17 @@ #include "hcd.h" /* for usbcore internals */ #include "usb.h" +struct api_context { + struct completion done; + int status; +}; + static void usb_api_blocking_completion(struct urb *urb) { - complete((struct completion *)urb->context); + struct api_context *ctx = urb->context; + + ctx->status = urb->status; + complete(&ctx->done); } @@ -32,19 +40,21 @@ static void usb_api_blocking_completion(struct urb *urb) */ static int usb_start_wait_urb(struct urb *urb, int timeout, int *actual_length) { - struct completion done; + struct api_context ctx; unsigned long expire; - int status; + int retval; - init_completion(&done); - urb->context = &done; + init_completion(&ctx.done); + urb->context = &ctx; urb->actual_length = 0; - status = usb_submit_urb(urb, GFP_NOIO); - if (unlikely(status)) + retval = usb_submit_urb(urb, GFP_NOIO); + if (unlikely(retval)) goto out; expire = timeout ? msecs_to_jiffies(timeout) : MAX_SCHEDULE_TIMEOUT; - if (!wait_for_completion_timeout(&done, expire)) { + if (!wait_for_completion_timeout(&ctx.done, expire)) { + usb_kill_urb(urb); + retval = (ctx.status == -ENOENT ? -ETIMEDOUT : ctx.status); dev_dbg(&urb->dev->dev, "%s timed out on ep%d%s len=%d/%d\n", @@ -53,17 +63,14 @@ static int usb_start_wait_urb(struct urb *urb, int timeout, int *actual_length) usb_pipein(urb->pipe) ? "in" : "out", urb->actual_length, urb->transfer_buffer_length); - - usb_kill_urb(urb); - status = urb->status == -ENOENT ? -ETIMEDOUT : urb->status; } else - status = urb->status; + retval = ctx.status; out: if (actual_length) *actual_length = urb->actual_length; usb_free_urb(urb); - return status; + return retval; } /*-------------------------------------------------------------------*/ @@ -250,6 +257,7 @@ static void sg_clean (struct usb_sg_request *io) static void sg_complete (struct urb *urb) { struct usb_sg_request *io = urb->context; + int status = urb->status; spin_lock (&io->lock); @@ -265,21 +273,21 @@ static void sg_complete (struct urb *urb) */ if (io->status && (io->status != -ECONNRESET - || urb->status != -ECONNRESET) + || status != -ECONNRESET) && urb->actual_length) { dev_err (io->dev->bus->controller, "dev %s ep%d%s scatterlist error %d/%d\n", io->dev->devpath, usb_pipeendpoint (urb->pipe), usb_pipein (urb->pipe) ? "in" : "out", - urb->status, io->status); + status, io->status); // BUG (); } - if (io->status == 0 && urb->status && urb->status != -ECONNRESET) { - int i, found, status; + if (io->status == 0 && status && status != -ECONNRESET) { + int i, found, retval; - io->status = urb->status; + io->status = status; /* the previous urbs, and this one, completed already. * unlink pending urbs so they won't rx/tx bad data. @@ -290,13 +298,13 @@ static void sg_complete (struct urb *urb) if (!io->urbs [i] || !io->urbs [i]->dev) continue; if (found) { - status = usb_unlink_urb (io->urbs [i]); - if (status != -EINPROGRESS - && status != -ENODEV - && status != -EBUSY) + retval = usb_unlink_urb (io->urbs [i]); + if (retval != -EINPROGRESS && + retval != -ENODEV && + retval != -EBUSY) dev_err (&io->dev->dev, "%s, unlink --> %d\n", - __FUNCTION__, status); + __FUNCTION__, retval); } else if (urb == io->urbs [i]) found = 1; } @@ -404,22 +412,27 @@ int usb_sg_init ( io->urbs [i]->complete = sg_complete; io->urbs [i]->context = io; - io->urbs [i]->status = -EINPROGRESS; - io->urbs [i]->actual_length = 0; /* * Some systems need to revert to PIO when DMA is temporarily * unavailable. For their sakes, both transfer_buffer and * transfer_dma are set when possible. However this can only - * work on systems without HIGHMEM, since DMA buffers located - * in high memory are not directly addressable by the CPU for - * PIO ... so when HIGHMEM is in use, transfer_buffer is NULL + * work on systems without: + * + * - HIGHMEM, since DMA buffers located in high memory are + * not directly addressable by the CPU for PIO; + * + * - IOMMU, since dma_map_sg() is allowed to use an IOMMU to + * make virtually discontiguous buffers be "dma-contiguous" + * so that PIO and DMA need diferent numbers of URBs. + * + * So when HIGHMEM or IOMMU are in use, transfer_buffer is NULL * to prevent stale pointers and to help spot bugs. */ if (dma) { io->urbs [i]->transfer_dma = sg_dma_address (sg + i); len = sg_dma_len (sg + i); -#ifdef CONFIG_HIGHMEM +#if defined(CONFIG_HIGHMEM) || defined(CONFIG_IOMMU) io->urbs[i]->transfer_buffer = NULL; #else io->urbs[i]->transfer_buffer = @@ -499,7 +512,8 @@ void usb_sg_wait (struct usb_sg_request *io) /* queue the urbs. */ spin_lock_irq (&io->lock); - for (i = 0; i < entries && !io->status; i++) { + i = 0; + while (i < entries && !io->status) { int retval; io->urbs [i]->dev = io->dev; @@ -516,7 +530,6 @@ void usb_sg_wait (struct usb_sg_request *io) case -ENOMEM: io->urbs[i]->dev = NULL; retval = 0; - i--; yield (); break; @@ -527,6 +540,7 @@ void usb_sg_wait (struct usb_sg_request *io) * URBs are queued at once; N milliseconds? */ case 0: + ++i; cpu_relax (); break; @@ -1409,6 +1423,36 @@ struct device_type usb_if_device_type = { .uevent = usb_if_uevent, }; +static struct usb_interface_assoc_descriptor *find_iad(struct usb_device *dev, + struct usb_host_config *config, + u8 inum) +{ + struct usb_interface_assoc_descriptor *retval = NULL; + struct usb_interface_assoc_descriptor *intf_assoc; + int first_intf; + int last_intf; + int i; + + for (i = 0; (i < USB_MAXIADS && config->intf_assoc[i]); i++) { + intf_assoc = config->intf_assoc[i]; + if (intf_assoc->bInterfaceCount == 0) + continue; + + first_intf = intf_assoc->bFirstInterface; + last_intf = first_intf + (intf_assoc->bInterfaceCount - 1); + if (inum >= first_intf && inum <= last_intf) { + if (!retval) + retval = intf_assoc; + else + dev_err(&dev->dev, "Interface #%d referenced" + " by multiple IADs\n", inum); + } + } + + return retval; +} + + /* * usb_set_configuration - Makes a particular device setting be current * @dev: the device whose configuration is being updated @@ -1555,6 +1599,7 @@ free_interfaces: intfc = cp->intf_cache[i]; intf->altsetting = intfc->altsetting; intf->num_altsetting = intfc->num_altsetting; + intf->intf_assoc = find_iad(dev, cp, i); kref_get(&intfc->ref); alt = usb_altnum_to_altsetting(intf, 0); diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index 739f520908aa..ebf3dc20110a 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -28,12 +28,89 @@ * devices is broken... */ static const struct usb_device_id usb_quirk_list[] = { + /* CBM - Flash disk */ + { USB_DEVICE(0x0204, 0x6025), .driver_info = USB_QUIRK_RESET_RESUME }, /* HP 5300/5370C scanner */ { USB_DEVICE(0x03f0, 0x0701), .driver_info = USB_QUIRK_STRING_FETCH_255 }, + /* Hewlett-Packard PhotoSmart 720 / PhotoSmart 935 (storage) */ + { USB_DEVICE(0x03f0, 0x4002), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + + /* SGS Thomson Microelectronics 4in1 card reader */ + { USB_DEVICE(0x0483, 0x0321), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + + /* Acer Peripherals Inc. (now BenQ Corp.) Prisa 640BU */ + { USB_DEVICE(0x04a5, 0x207e), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Benq S2W 3300U */ + { USB_DEVICE(0x04a5, 0x20b0), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Canon, Inc. CanoScan N1240U/LiDE30 */ + { USB_DEVICE(0x04a9, 0x220e), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Canon, Inc. CanoScan N650U/N656U */ + { USB_DEVICE(0x04a9, 0x2206), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Canon, Inc. CanoScan 1220U */ + { USB_DEVICE(0x04a9, 0x2207), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Canon, Inc. CanoScan N670U/N676U/LiDE 20 */ + { USB_DEVICE(0x04a9, 0x220d), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* old Cannon scanner */ + { USB_DEVICE(0x04a9, 0x2220), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Seiko Epson Corp. Perfection 1200 */ + { USB_DEVICE(0x04b8, 0x0104), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Seiko Epson Corp. Perfection 660 */ + { USB_DEVICE(0x04b8, 0x0114), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Epson Perfection 1260 Photo */ + { USB_DEVICE(0x04b8, 0x011d), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, /* Seiko Epson Corp - Perfection 1670 */ { USB_DEVICE(0x04b8, 0x011f), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* EPSON Perfection 2480 */ + { USB_DEVICE(0x04b8, 0x0121), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Seiko Epson Corp.*/ + { USB_DEVICE(0x04b8, 0x0122), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Samsung ML-2010 printer */ + { USB_DEVICE(0x04e8, 0x326c), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Samsung ML-2510 Series printer */ + { USB_DEVICE(0x04e8, 0x327e), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, /* Elsa MicroLink 56k (V.250) */ { USB_DEVICE(0x05cc, 0x2267), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Ultima Electronics Corp.*/ + { USB_DEVICE(0x05d8, 0x4005), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + + /* Genesys USB-to-IDE */ + { USB_DEVICE(0x0503, 0x0702), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + + /* USB Graphical LCD - EEH Datalink GmbH */ + { USB_DEVICE(0x060c, 0x04eb), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + + /* INTEL VALUE SSD */ + { USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME }, + + /* M-Systems Flash Disk Pioneers */ + { USB_DEVICE(0x08ec, 0x1000), .driver_info = USB_QUIRK_RESET_RESUME }, + + /* Agfa Snapscan1212u */ + { USB_DEVICE(0x06bd, 0x2061), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Seagate RSS LLC */ + { USB_DEVICE(0x0bc2, 0x3000), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + /* Umax [hex] Astra 3400U */ + { USB_DEVICE(0x1606, 0x0060), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + + /* Philips PSC805 audio device */ + { USB_DEVICE(0x0471, 0x0155), .driver_info = USB_QUIRK_RESET_RESUME }, + + /* Alcor multi-card reader */ + { USB_DEVICE(0x058f, 0x6366), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + + /* Canon EOS 5D in PC Connection mode */ + { USB_DEVICE(0x04a9, 0x3101), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + + /* RIM Blackberry */ + { USB_DEVICE(0x0fca, 0x0001), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + { USB_DEVICE(0x0fca, 0x0004), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + { USB_DEVICE(0x0fca, 0x0006), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + + /* Apple iPhone */ + { USB_DEVICE(0x05ac, 0x1290), .driver_info = USB_QUIRK_NO_AUTOSUSPEND }, + + /* SKYMEDI USB_DRIVE */ + { USB_DEVICE(0x1516, 0x8628), .driver_info = USB_QUIRK_RESET_RESUME }, { } /* terminating entry must be last */ }; @@ -75,4 +152,10 @@ void usb_detect_quirks(struct usb_device *udev) /* do any special quirk handling here if needed */ if (udev->quirks & USB_QUIRK_NO_AUTOSUSPEND) usb_autosuspend_quirk(udev); + + /* By default, disable autosuspend for all non-hubs */ +#ifdef CONFIG_USB_SUSPEND + if (udev->descriptor.bDeviceClass != USB_CLASS_HUB) + udev->autosuspend_delay = -1; +#endif } diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c index be37c863fdfb..2ab222be8fd1 100644 --- a/drivers/usb/core/sysfs.c +++ b/drivers/usb/core/sysfs.c @@ -169,6 +169,73 @@ show_quirks(struct device *dev, struct device_attribute *attr, char *buf) } static DEVICE_ATTR(quirks, S_IRUGO, show_quirks, NULL); + +#if defined(CONFIG_USB_PERSIST) || defined(CONFIG_USB_SUSPEND) +static const char power_group[] = "power"; +#endif + +#ifdef CONFIG_USB_PERSIST + +static ssize_t +show_persist(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct usb_device *udev = to_usb_device(dev); + + return sprintf(buf, "%d\n", udev->persist_enabled); +} + +static ssize_t +set_persist(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct usb_device *udev = to_usb_device(dev); + int value; + + /* Hubs are always enabled for USB_PERSIST */ + if (udev->descriptor.bDeviceClass == USB_CLASS_HUB) + return -EPERM; + + if (sscanf(buf, "%d", &value) != 1) + return -EINVAL; + usb_pm_lock(udev); + udev->persist_enabled = !!value; + usb_pm_unlock(udev); + return count; +} + +static DEVICE_ATTR(persist, S_IRUGO | S_IWUSR, show_persist, set_persist); + +static int add_persist_attributes(struct device *dev) +{ + int rc = 0; + + if (is_usb_device(dev)) { + struct usb_device *udev = to_usb_device(dev); + + /* Hubs are automatically enabled for USB_PERSIST */ + if (udev->descriptor.bDeviceClass == USB_CLASS_HUB) + udev->persist_enabled = 1; + rc = sysfs_add_file_to_group(&dev->kobj, + &dev_attr_persist.attr, + power_group); + } + return rc; +} + +static void remove_persist_attributes(struct device *dev) +{ + sysfs_remove_file_from_group(&dev->kobj, + &dev_attr_persist.attr, + power_group); +} + +#else + +#define add_persist_attributes(dev) 0 +#define remove_persist_attributes(dev) do {} while (0) + +#endif /* CONFIG_USB_PERSIST */ + #ifdef CONFIG_USB_SUSPEND static ssize_t @@ -276,8 +343,6 @@ set_level(struct device *dev, struct device_attribute *attr, static DEVICE_ATTR(level, S_IRUGO | S_IWUSR, show_level, set_level); -static char power_group[] = "power"; - static int add_power_attributes(struct device *dev) { int rc = 0; @@ -311,6 +376,7 @@ static void remove_power_attributes(struct device *dev) #endif /* CONFIG_USB_SUSPEND */ + /* Descriptor fields */ #define usb_descriptor_attr_le16(field, format_string) \ static ssize_t \ @@ -375,6 +441,54 @@ static struct attribute_group dev_attr_grp = { .attrs = dev_attrs, }; +/* Binary descriptors */ + +static ssize_t +read_descriptors(struct kobject *kobj, struct bin_attribute *attr, + char *buf, loff_t off, size_t count) +{ + struct usb_device *udev = to_usb_device( + container_of(kobj, struct device, kobj)); + size_t nleft = count; + size_t srclen, n; + + usb_lock_device(udev); + + /* The binary attribute begins with the device descriptor */ + srclen = sizeof(struct usb_device_descriptor); + if (off < srclen) { + n = min_t(size_t, nleft, srclen - off); + memcpy(buf, off + (char *) &udev->descriptor, n); + nleft -= n; + buf += n; + off = 0; + } else { + off -= srclen; + } + + /* Then follows the raw descriptor entry for the current + * configuration (config plus subsidiary descriptors). + */ + if (udev->actconfig) { + int cfgno = udev->actconfig - udev->config; + + srclen = __le16_to_cpu(udev->actconfig->desc.wTotalLength); + if (off < srclen) { + n = min_t(size_t, nleft, srclen - off); + memcpy(buf, off + udev->rawdescriptors[cfgno], n); + nleft -= n; + } + } + usb_unlock_device(udev); + return count - nleft; +} + +static struct bin_attribute dev_bin_attr_descriptors = { + .attr = {.name = "descriptors", .mode = 0444}, + .read = read_descriptors, + .size = 18 + 65535, /* dev descr + max-size raw descriptor */ +}; + int usb_create_sysfs_dev_files(struct usb_device *udev) { struct device *dev = &udev->dev; @@ -384,6 +498,14 @@ int usb_create_sysfs_dev_files(struct usb_device *udev) if (retval) return retval; + retval = device_create_bin_file(dev, &dev_bin_attr_descriptors); + if (retval) + goto error; + + retval = add_persist_attributes(dev); + if (retval) + goto error; + retval = add_power_attributes(dev); if (retval) goto error; @@ -421,9 +543,30 @@ void usb_remove_sysfs_dev_files(struct usb_device *udev) device_remove_file(dev, &dev_attr_product); device_remove_file(dev, &dev_attr_serial); remove_power_attributes(dev); + remove_persist_attributes(dev); + device_remove_bin_file(dev, &dev_bin_attr_descriptors); sysfs_remove_group(&dev->kobj, &dev_attr_grp); } +/* Interface Accociation Descriptor fields */ +#define usb_intf_assoc_attr(field, format_string) \ +static ssize_t \ +show_iad_##field (struct device *dev, struct device_attribute *attr, \ + char *buf) \ +{ \ + struct usb_interface *intf = to_usb_interface (dev); \ + \ + return sprintf (buf, format_string, \ + intf->intf_assoc->field); \ +} \ +static DEVICE_ATTR(iad_##field, S_IRUGO, show_iad_##field, NULL); + +usb_intf_assoc_attr (bFirstInterface, "%02x\n") +usb_intf_assoc_attr (bInterfaceCount, "%02d\n") +usb_intf_assoc_attr (bFunctionClass, "%02x\n") +usb_intf_assoc_attr (bFunctionSubClass, "%02x\n") +usb_intf_assoc_attr (bFunctionProtocol, "%02x\n") + /* Interface fields */ #define usb_intf_attr(field, format_string) \ static ssize_t \ @@ -487,6 +630,18 @@ static ssize_t show_modalias(struct device *dev, } static DEVICE_ATTR(modalias, S_IRUGO, show_modalias, NULL); +static struct attribute *intf_assoc_attrs[] = { + &dev_attr_iad_bFirstInterface.attr, + &dev_attr_iad_bInterfaceCount.attr, + &dev_attr_iad_bFunctionClass.attr, + &dev_attr_iad_bFunctionSubClass.attr, + &dev_attr_iad_bFunctionProtocol.attr, + NULL, +}; +static struct attribute_group intf_assoc_attr_grp = { + .attrs = intf_assoc_attrs, +}; + static struct attribute *intf_attrs[] = { &dev_attr_bInterfaceNumber.attr, &dev_attr_bAlternateSetting.attr, @@ -538,6 +693,8 @@ int usb_create_sysfs_intf_files(struct usb_interface *intf) alt->string = usb_cache_string(udev, alt->desc.iInterface); if (alt->string) retval = device_create_file(dev, &dev_attr_interface); + if (intf->intf_assoc) + retval = sysfs_create_group(&dev->kobj, &intf_assoc_attr_grp); usb_create_intf_ep_files(intf, udev); return 0; } @@ -549,4 +706,5 @@ void usb_remove_sysfs_intf_files(struct usb_interface *intf) usb_remove_intf_ep_files(intf); device_remove_file(dev, &dev_attr_interface); sysfs_remove_group(&dev->kobj, &intf_attr_grp); + sysfs_remove_group(&intf->dev.kobj, &intf_assoc_attr_grp); } diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index 94ea9727ff55..be630228461c 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -4,6 +4,7 @@ #include <linux/slab.h> #include <linux/init.h> #include <linux/usb.h> +#include <linux/wait.h> #include "hcd.h" #define to_urb(d) container_of(d, struct urb, kref) @@ -11,6 +12,10 @@ static void urb_destroy(struct kref *kref) { struct urb *urb = to_urb(kref); + + if (urb->transfer_flags & URB_FREE_BUFFER) + kfree(urb->transfer_buffer); + kfree(urb); } @@ -34,6 +39,7 @@ void usb_init_urb(struct urb *urb) memset(urb, 0, sizeof(*urb)); kref_init(&urb->kref); spin_lock_init(&urb->lock); + INIT_LIST_HEAD(&urb->anchor_list); } } @@ -100,8 +106,60 @@ struct urb * usb_get_urb(struct urb *urb) kref_get(&urb->kref); return urb; } - - + +/** + * usb_anchor_urb - anchors an URB while it is processed + * @urb: pointer to the urb to anchor + * @anchor: pointer to the anchor + * + * This can be called to have access to URBs which are to be executed + * without bothering to track them + */ +void usb_anchor_urb(struct urb *urb, struct usb_anchor *anchor) +{ + unsigned long flags; + + spin_lock_irqsave(&anchor->lock, flags); + usb_get_urb(urb); + list_add_tail(&urb->anchor_list, &anchor->urb_list); + urb->anchor = anchor; + spin_unlock_irqrestore(&anchor->lock, flags); +} +EXPORT_SYMBOL_GPL(usb_anchor_urb); + +/** + * usb_unanchor_urb - unanchors an URB + * @urb: pointer to the urb to anchor + * + * Call this to stop the system keeping track of this URB + */ +void usb_unanchor_urb(struct urb *urb) +{ + unsigned long flags; + struct usb_anchor *anchor; + + if (!urb) + return; + + anchor = urb->anchor; + if (!anchor) + return; + + spin_lock_irqsave(&anchor->lock, flags); + if (unlikely(anchor != urb->anchor)) { + /* we've lost the race to another thread */ + spin_unlock_irqrestore(&anchor->lock, flags); + return; + } + urb->anchor = NULL; + list_del(&urb->anchor_list); + spin_unlock_irqrestore(&anchor->lock, flags); + usb_put_urb(urb); + if (list_empty(&anchor->urb_list)) + wake_up(&anchor->wait); +} +EXPORT_SYMBOL_GPL(usb_unanchor_urb); + /*-------------------------------------------------------------------*/ /** @@ -382,55 +440,57 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) * @urb: pointer to urb describing a previously submitted request, * may be NULL * - * This routine cancels an in-progress request. URBs complete only - * once per submission, and may be canceled only once per submission. - * Successful cancellation means the requests's completion handler will - * be called with a status code indicating that the request has been - * canceled (rather than any other code) and will quickly be removed - * from host controller data structures. - * - * This request is always asynchronous. - * Success is indicated by returning -EINPROGRESS, - * at which time the URB will normally have been unlinked but not yet - * given back to the device driver. When it is called, the completion - * function will see urb->status == -ECONNRESET. Failure is indicated - * by any other return value. Unlinking will fail when the URB is not - * currently "linked" (i.e., it was never submitted, or it was unlinked - * before, or the hardware is already finished with it), even if the - * completion handler has not yet run. + * This routine cancels an in-progress request. URBs complete only once + * per submission, and may be canceled only once per submission. + * Successful cancellation means termination of @urb will be expedited + * and the completion handler will be called with a status code + * indicating that the request has been canceled (rather than any other + * code). + * + * This request is always asynchronous. Success is indicated by + * returning -EINPROGRESS, at which time the URB will probably not yet + * have been given back to the device driver. When it is eventually + * called, the completion function will see @urb->status == -ECONNRESET. + * Failure is indicated by usb_unlink_urb() returning any other value. + * Unlinking will fail when @urb is not currently "linked" (i.e., it was + * never submitted, or it was unlinked before, or the hardware is already + * finished with it), even if the completion handler has not yet run. * * Unlinking and Endpoint Queues: * + * [The behaviors and guarantees described below do not apply to virtual + * root hubs but only to endpoint queues for physical USB devices.] + * * Host Controller Drivers (HCDs) place all the URBs for a particular * endpoint in a queue. Normally the queue advances as the controller * hardware processes each request. But when an URB terminates with an - * error its queue stops, at least until that URB's completion routine - * returns. It is guaranteed that the queue will not restart until all - * its unlinked URBs have been fully retired, with their completion - * routines run, even if that's not until some time after the original - * completion handler returns. Normally the same behavior and guarantees - * apply when an URB terminates because it was unlinked; however if an - * URB is unlinked before the hardware has started to execute it, then - * its queue is not guaranteed to stop until all the preceding URBs have - * completed. - * - * This means that USB device drivers can safely build deep queues for - * large or complex transfers, and clean them up reliably after any sort - * of aborted transfer by unlinking all pending URBs at the first fault. - * - * Note that an URB terminating early because a short packet was received - * will count as an error if and only if the URB_SHORT_NOT_OK flag is set. - * Also, that all unlinks performed in any URB completion handler must - * be asynchronous. - * - * Queues for isochronous endpoints are treated differently, because they - * advance at fixed rates. Such queues do not stop when an URB is unlinked. - * An unlinked URB may leave a gap in the stream of packets. It is undefined - * whether such gaps can be filled in. - * - * When a control URB terminates with an error, it is likely that the - * status stage of the transfer will not take place, even if it is merely - * a soft error resulting from a short-packet with URB_SHORT_NOT_OK set. + * error its queue generally stops (see below), at least until that URB's + * completion routine returns. It is guaranteed that a stopped queue + * will not restart until all its unlinked URBs have been fully retired, + * with their completion routines run, even if that's not until some time + * after the original completion handler returns. The same behavior and + * guarantee apply when an URB terminates because it was unlinked. + * + * Bulk and interrupt endpoint queues are guaranteed to stop whenever an + * URB terminates with any sort of error, including -ECONNRESET, -ENOENT, + * and -EREMOTEIO. Control endpoint queues behave the same way except + * that they are not guaranteed to stop for -EREMOTEIO errors. Queues + * for isochronous endpoints are treated differently, because they must + * advance at fixed rates. Such queues do not stop when an URB + * encounters an error or is unlinked. An unlinked isochronous URB may + * leave a gap in the stream of packets; it is undefined whether such + * gaps can be filled in. + * + * Note that early termination of an URB because a short packet was + * received will generate a -EREMOTEIO error if and only if the + * URB_SHORT_NOT_OK flag is set. By setting this flag, USB device + * drivers can build deep queues for large or complex bulk transfers + * and clean them up reliably after any sort of aborted transfer by + * unlinking all pending URBs at the first fault. + * + * When a control URB terminates with an error other than -EREMOTEIO, it + * is quite likely that the status stage of the transfer will not take + * place. */ int usb_unlink_urb(struct urb *urb) { @@ -478,6 +538,48 @@ void usb_kill_urb(struct urb *urb) spin_unlock_irq(&urb->lock); } +/** + * usb_kill_anchored_urbs - cancel transfer requests en masse + * @anchor: anchor the requests are bound to + * + * this allows all outstanding URBs to be killed starting + * from the back of the queue + */ +void usb_kill_anchored_urbs(struct usb_anchor *anchor) +{ + struct urb *victim; + + spin_lock_irq(&anchor->lock); + while (!list_empty(&anchor->urb_list)) { + victim = list_entry(anchor->urb_list.prev, struct urb, anchor_list); + /* we must make sure the URB isn't freed before we kill it*/ + usb_get_urb(victim); + spin_unlock_irq(&anchor->lock); + /* this will unanchor the URB */ + usb_kill_urb(victim); + usb_put_urb(victim); + spin_lock_irq(&anchor->lock); + } + spin_unlock_irq(&anchor->lock); +} +EXPORT_SYMBOL_GPL(usb_kill_anchored_urbs); + +/** + * usb_wait_anchor_empty_timeout - wait for an anchor to be unused + * @anchor: the anchor you want to become unused + * @timeout: how long you are willing to wait in milliseconds + * + * Call this is you want to be sure all an anchor's + * URBs have finished + */ +int usb_wait_anchor_empty_timeout(struct usb_anchor *anchor, + unsigned int timeout) +{ + return wait_event_timeout(anchor->wait, list_empty(&anchor->urb_list), + msecs_to_jiffies(timeout)); +} +EXPORT_SYMBOL_GPL(usb_wait_anchor_empty_timeout); + EXPORT_SYMBOL(usb_init_urb); EXPORT_SYMBOL(usb_alloc_urb); EXPORT_SYMBOL(usb_free_urb); @@ -485,4 +587,3 @@ EXPORT_SYMBOL(usb_get_urb); EXPORT_SYMBOL(usb_submit_urb); EXPORT_SYMBOL(usb_unlink_urb); EXPORT_SYMBOL(usb_kill_urb); - diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 12918839c2f1..137f930dea58 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -253,6 +253,7 @@ usb_alloc_dev(struct usb_device *parent, struct usb_bus *bus, unsigned port1) dev->dev.bus = &usb_bus_type; dev->dev.type = &usb_device_type; dev->dev.dma_mask = bus->controller->dma_mask; + set_dev_node(&dev->dev, dev_to_node(bus->controller)); dev->state = USB_STATE_ATTACHED; INIT_LIST_HEAD(&dev->ep0.urb_list); @@ -578,11 +579,12 @@ int __usb_get_extra_descriptor(char *buffer, unsigned size, * address (through the pointer provided). * * These buffers are used with URB_NO_xxx_DMA_MAP set in urb->transfer_flags - * to avoid behaviors like using "DMA bounce buffers", or tying down I/O - * mapping hardware for long idle periods. The implementation varies between + * to avoid behaviors like using "DMA bounce buffers", or thrashing IOMMU + * hardware during URB completion/resubmit. The implementation varies between * platforms, depending on details of how DMA will work to this device. - * Using these buffers also helps prevent cacheline sharing problems on - * architectures where CPU caches are not DMA-coherent. + * Using these buffers also eliminates cacheline sharing problems on + * architectures where CPU caches are not DMA-coherent. On systems without + * bus-snooping caches, these buffers are uncached. * * When the buffer is no longer used, free it with usb_buffer_free(). */ @@ -607,7 +609,7 @@ void *usb_buffer_alloc( * * This reclaims an I/O buffer, letting it be reused. The memory must have * been allocated using usb_buffer_alloc(), and the parameters must match - * those provided in that allocation request. + * those provided in that allocation request. */ void usb_buffer_free( struct usb_device *dev, diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index bf2eb0dae2ec..ad5fa0338f49 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -52,8 +52,16 @@ static inline void usb_pm_unlock(struct usb_device *udev) #else -#define usb_port_suspend(dev) 0 -#define usb_port_resume(dev) 0 +static inline int usb_port_suspend(struct usb_device *udev) +{ + return 0; +} + +static inline int usb_port_resume(struct usb_device *udev) +{ + return 0; +} + static inline void usb_pm_lock(struct usb_device *udev) {} static inline void usb_pm_unlock(struct usb_device *udev) {} @@ -100,11 +108,13 @@ static inline int is_usb_device_driver(struct device_driver *drv) static inline void mark_active(struct usb_interface *f) { f->is_active = 1; + f->dev.power.power_state.event = PM_EVENT_ON; } static inline void mark_quiesced(struct usb_interface *f) { f->is_active = 0; + f->dev.power.power_state.event = PM_EVENT_SUSPEND; } static inline int is_active(const struct usb_interface *f) diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 9625a5abfff9..12e92aece3ea 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -42,6 +42,20 @@ config USB_GADGET For more information, see <http://www.linux-usb.org/gadget> and the kernel DocBook documentation for this API. +config USB_GADGET_DEBUG + boolean "Debugging messages" + depends on USB_GADGET && DEBUG_KERNEL && EXPERIMENTAL + help + Many controller and gadget drivers will print some debugging + messages if you use this option to ask for those messages. + + Avoid enabling these messages, even if you're actively + debugging such a driver. Many drivers will emit so many + messages that the driver timings are affected, which will + either create new failure modes or remove the one you're + trying to track down. Never enable these messages for a + production build. + config USB_GADGET_DEBUG_FILES boolean "Debugging information files" depends on USB_GADGET && PROC_FS @@ -68,6 +82,27 @@ choice Many controller drivers are platform-specific; these often need board-specific hooks. +config USB_GADGET_AMD5536UDC + boolean "AMD5536 UDC" + depends on PCI + select USB_GADGET_DUALSPEED + help + The AMD5536 UDC is part of the AMD Geode CS5536, an x86 southbridge. + It is a USB Highspeed DMA capable USB device controller. Beside ep0 + it provides 4 IN and 4 OUT endpoints (bulk or interrupt type). + The UDC port supports OTG operation, and may be used as a host port + if it's not being used to implement peripheral or OTG roles. + + Say "y" to link the driver statically, or "m" to build a + dynamically linked module called "amd5536udc" and force all + gadget drivers to also be dynamically linked. + +config USB_AMD5536UDC + tristate + depends on USB_GADGET_AMD5536UDC + default USB_GADGET + select USB_GADGET_SELECTED + config USB_GADGET_FSL_USB2 boolean "Freescale Highspeed USB DR Peripheral Controller" depends on MPC834x || PPC_MPC831x @@ -142,6 +177,24 @@ config USB_PXA2XX_SMALL default y if USB_ETH default y if USB_G_SERIAL +config USB_GADGET_M66592 + boolean "Renesas M66592 USB Peripheral Controller" + select USB_GADGET_DUALSPEED + help + M66592 is a discrete USB peripheral controller chip that + supports both full and high speed USB 2.0 data transfers. + It has seven configurable endpoints, and endpoint zero. + + Say "y" to link the driver statically, or "m" to build a + dynamically linked module called "m66592_udc" and force all + gadget drivers to also be dynamically linked. + +config USB_M66592 + tristate + depends on USB_GADGET_M66592 + default USB_GADGET + select USB_GADGET_SELECTED + config USB_GADGET_GOKU boolean "Toshiba TC86C001 'Goku-S'" depends on PCI @@ -215,6 +268,27 @@ config USB_ARC default USB_GADGET select USB_GADGET_SELECTED +config USB_GADGET_S3C2410 + boolean "S3C2410 USB Device Controller" + depends on ARCH_S3C2410 + help + Samsung's S3C2410 is an ARM-4 processor with an integrated + full speed USB 1.1 device controller. It has 4 configurable + endpoints, as well as endpoint zero (for control transfers). + + This driver has been tested on the S3C2410, S3C2412, and + S3C2440 processors. + +config USB_S3C2410 + tristate + depends on USB_GADGET_S3C2410 + default USB_GADGET + select USB_GADGET_SELECTED + +config USB_S3C2410_DEBUG + boolean "S3C2410 udc debug messages" + depends on USB_GADGET_S3C2410 + config USB_GADGET_AT91 boolean "AT91 USB Device Port" depends on ARCH_AT91 && !ARCH_AT91SAM9RL diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index 898a2185e0f4..a4950f85390a 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -1,14 +1,21 @@ # # USB peripheral controller drivers # +ifeq ($(CONFIG_USB_GADGET_DEBUG),y) + EXTRA_CFLAGS += -DDEBUG +endif + obj-$(CONFIG_USB_DUMMY_HCD) += dummy_hcd.o obj-$(CONFIG_USB_NET2280) += net2280.o +obj-$(CONFIG_USB_AMD5536UDC) += amd5536udc.o obj-$(CONFIG_USB_PXA2XX) += pxa2xx_udc.o obj-$(CONFIG_USB_GOKU) += goku_udc.o obj-$(CONFIG_USB_OMAP) += omap_udc.o obj-$(CONFIG_USB_LH7A40X) += lh7a40x_udc.o +obj-$(CONFIG_USB_S3C2410) += s3c2410_udc.o obj-$(CONFIG_USB_AT91) += at91_udc.o obj-$(CONFIG_USB_FSL_USB2) += fsl_usb2_udc.o +obj-$(CONFIG_USB_M66592) += m66592-udc.o obj-$(CONFIG_USB_ARC) += arcotg_udc.o # diff --git a/drivers/usb/gadget/arcotg_udc.c b/drivers/usb/gadget/arcotg_udc.c index 7c3d19c2ee2f..ef4866136001 100644 --- a/drivers/usb/gadget/arcotg_udc.c +++ b/drivers/usb/gadget/arcotg_udc.c @@ -838,49 +838,6 @@ static void arcotg_free_request(struct usb_ep *_ep, struct usb_request *_req) kfree(req); } -/*! - * Allocate an I/O buffer for the ep->req->buf. - * @param _ep endpoint pointer - * @param bytes length of the desired buffer - * @param dma pointer to the buffer's DMA address; must be valid - * when gadget layer calls this function, ma is &req->dma - * @param gfp_flags GFP_* flags to use - * @return Returns a new buffer, or null if one could not be allocated - */ -static void *arcotg_alloc_buffer(struct usb_ep *_ep, unsigned bytes, - dma_addr_t * dma, gfp_t gfp_flags) -{ - void *retval = NULL; - - if (!bytes) - return 0; - - retval = kmalloc(bytes, gfp_flags); - - if (retval) - *dma = virt_to_phys(retval); - - pr_debug("udc: ep=%s buffer=0x%p dma=0x%x len=%d\n", - _ep->name, retval, *dma, bytes); - - return retval; -} - -/*! - * Free an I/O buffer for the ep->req->buf - * @param _ep endpoint pointer - * @param buf data buf pointer - * @param dma for 834x, we will not touch dma field - * @param bytes buffer size - */ -static void arcotg_free_buffer(struct usb_ep *_ep, void *buf, - dma_addr_t dma, unsigned bytes) -{ - pr_debug("udc: buf=0x%p dma=0x%x\n", buf, dma); - if (buf) - kfree(buf); -} - /*-------------------------------------------------------------------------*/ /*! @@ -1346,9 +1303,6 @@ static const struct usb_ep_ops arcotg_ep_ops = { .alloc_request = arcotg_alloc_request, .free_request = arcotg_free_request, - .alloc_buffer = arcotg_alloc_buffer, - .free_buffer = arcotg_free_buffer, - .queue = arcotg_ep_queue, .dequeue = arcotg_ep_dequeue, diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index ba163f35bf21..63d7d6568699 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -601,25 +601,6 @@ static void at91_ep_free_request(struct usb_ep *_ep, struct usb_request *_req) kfree(req); } -static void *at91_ep_alloc_buffer( - struct usb_ep *_ep, - unsigned bytes, - dma_addr_t *dma, - gfp_t gfp_flags) -{ - *dma = ~0; - return kmalloc(bytes, gfp_flags); -} - -static void at91_ep_free_buffer( - struct usb_ep *ep, - void *buf, - dma_addr_t dma, - unsigned bytes) -{ - kfree(buf); -} - static int at91_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) { @@ -788,8 +769,6 @@ static const struct usb_ep_ops at91_ep_ops = { .disable = at91_ep_disable, .alloc_request = at91_ep_alloc_request, .free_request = at91_ep_free_request, - .alloc_buffer = at91_ep_alloc_buffer, - .free_buffer = at91_ep_free_buffer, .queue = at91_ep_queue, .dequeue = at91_ep_dequeue, .set_halt = at91_ep_set_halt, diff --git a/drivers/usb/gadget/config.c b/drivers/usb/gadget/config.c index d18901b92cda..c6760aee1e5c 100644 --- a/drivers/usb/gadget/config.c +++ b/drivers/usb/gadget/config.c @@ -50,7 +50,7 @@ usb_descriptor_fillbuf(void *buf, unsigned buflen, return -EINVAL; /* fill buffer from src[] until null descriptor ptr */ - for (; 0 != *src; src++) { + for (; NULL != *src; src++) { unsigned len = (*src)->bLength; if (len > buflen) diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index fcb5526cb085..d008d1360a7a 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -34,8 +34,6 @@ * bypassing some hardware (and driver) issues. UML could help too. */ -#define DEBUG - #include <linux/module.h> #include <linux/kernel.h> #include <linux/delay.h> @@ -497,38 +495,6 @@ dummy_free_request (struct usb_ep *_ep, struct usb_request *_req) kfree (req); } -static void * -dummy_alloc_buffer ( - struct usb_ep *_ep, - unsigned bytes, - dma_addr_t *dma, - gfp_t mem_flags -) { - char *retval; - struct dummy_ep *ep; - struct dummy *dum; - - ep = usb_ep_to_dummy_ep (_ep); - dum = ep_to_dummy (ep); - - if (!dum->driver) - return NULL; - retval = kmalloc (bytes, mem_flags); - *dma = (dma_addr_t) retval; - return retval; -} - -static void -dummy_free_buffer ( - struct usb_ep *_ep, - void *buf, - dma_addr_t dma, - unsigned bytes -) { - if (bytes) - kfree (buf); -} - static void fifo_complete (struct usb_ep *ep, struct usb_request *req) { @@ -659,10 +625,6 @@ static const struct usb_ep_ops dummy_ep_ops = { .alloc_request = dummy_alloc_request, .free_request = dummy_free_request, - .alloc_buffer = dummy_alloc_buffer, - .free_buffer = dummy_free_buffer, - /* map, unmap, ... eventually hook the "generic" dma calls */ - .queue = dummy_queue, .dequeue = dummy_dequeue, @@ -1784,8 +1746,7 @@ static int dummy_bus_resume (struct usb_hcd *hcd) spin_lock_irq (&dum->lock); if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) { - dev_warn (&hcd->self.root_hub->dev, "HC isn't running!\n"); - rc = -ENODEV; + rc = -ESHUTDOWN; } else { dum->rh_state = DUMMY_RH_RUNNING; set_link_state (dum); diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c index 6042364402b8..3aa46cfa66ba 100644 --- a/drivers/usb/gadget/epautoconf.c +++ b/drivers/usb/gadget/epautoconf.c @@ -71,7 +71,7 @@ ep_matches ( u16 max; /* endpoint already claimed? */ - if (0 != ep->driver_data) + if (NULL != ep->driver_data) return 0; /* only support ep0 for portable CONTROL traffic */ diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c index f8e9716bcece..9d55760765a3 100644 --- a/drivers/usb/gadget/ether.c +++ b/drivers/usb/gadget/ether.c @@ -281,7 +281,7 @@ MODULE_PARM_DESC(host_addr, "Host Ethernet Address"); #define DEV_CONFIG_CDC #endif -#ifdef CONFIG_USB_GADGET_HUSB2DEV +#ifdef CONFIG_USB_GADGET_ATMEL_USBA #define DEV_CONFIG_CDC #endif @@ -296,7 +296,7 @@ MODULE_PARM_DESC(host_addr, "Host Ethernet Address"); #define DEV_CONFIG_SUBSET #endif -#ifdef CONFIG_USB_GADGET_SH +#ifdef CONFIG_USB_GADGET_SUPERH #define DEV_CONFIG_SUBSET #endif @@ -305,6 +305,14 @@ MODULE_PARM_DESC(host_addr, "Host Ethernet Address"); #define DEV_CONFIG_SUBSET #endif +#ifdef CONFIG_USB_GADGET_M66592 +#define DEV_CONFIG_CDC +#endif + +#ifdef CONFIG_USB_GADGET_AMD5536UDC +#define DEV_CONFIG_CDC +#endif + /*-------------------------------------------------------------------------*/ @@ -1719,7 +1727,8 @@ rx_submit (struct eth_dev *dev, struct usb_request *req, gfp_t gfp_flags) size += sizeof (struct rndis_packet_msg_type); size -= size % dev->out_ep->maxpacket; - if ((skb = alloc_skb (size + NET_IP_ALIGN, gfp_flags)) == 0) { + skb = alloc_skb(size + NET_IP_ALIGN, gfp_flags); + if (skb == NULL) { DEBUG (dev, "no rx skb\n"); goto enomem; } diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c index 4639b629e60c..965ad7bec7b7 100644 --- a/drivers/usb/gadget/file_storage.c +++ b/drivers/usb/gadget/file_storage.c @@ -599,7 +599,6 @@ enum fsg_buffer_state { struct fsg_buffhd { void *buf; - dma_addr_t dma; enum fsg_buffer_state state; struct fsg_buffhd *next; @@ -1295,6 +1294,7 @@ static int class_setup_req(struct fsg_dev *fsg, struct usb_request *req = fsg->ep0req; int value = -EOPNOTSUPP; u16 w_index = le16_to_cpu(ctrl->wIndex); + u16 w_value = le16_to_cpu(ctrl->wValue); u16 w_length = le16_to_cpu(ctrl->wLength); if (!fsg->config) @@ -1308,7 +1308,7 @@ static int class_setup_req(struct fsg_dev *fsg, if (ctrl->bRequestType != (USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE)) break; - if (w_index != 0) { + if (w_index != 0 || w_value != 0) { value = -EDOM; break; } @@ -1324,7 +1324,7 @@ static int class_setup_req(struct fsg_dev *fsg, if (ctrl->bRequestType != (USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE)) break; - if (w_index != 0) { + if (w_index != 0 || w_value != 0) { value = -EDOM; break; } @@ -1343,7 +1343,7 @@ static int class_setup_req(struct fsg_dev *fsg, if (ctrl->bRequestType != (USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE)) break; - if (w_index != 0) { + if (w_index != 0 || w_value != 0) { value = -EDOM; break; } @@ -2611,7 +2611,6 @@ static int send_status(struct fsg_dev *fsg) fsg->intr_buffhd = bh; // Point to the right buffhd fsg->intreq->buf = bh->inreq->buf; - fsg->intreq->dma = bh->inreq->dma; fsg->intreq->context = bh; start_transfer(fsg, fsg->intr_in, fsg->intreq, &fsg->intreq_busy, &bh->state); @@ -3200,7 +3199,6 @@ reset: if ((rc = alloc_request(fsg, fsg->bulk_out, &bh->outreq)) != 0) goto reset; bh->inreq->buf = bh->outreq->buf = bh->buf; - bh->inreq->dma = bh->outreq->dma = bh->dma; bh->inreq->context = bh->outreq->context = bh; bh->inreq->complete = bulk_in_complete; bh->outreq->complete = bulk_out_complete; @@ -3434,6 +3432,9 @@ static int fsg_main_thread(void *fsg_) allow_signal(SIGKILL); allow_signal(SIGUSR1); + /* Allow the thread to be frozen */ + set_freezable(); + /* Arrange for userspace references to be interpreted as kernel * pointers. That way we can pass a kernel pointer to a routine * that expects a __user pointer and it will work okay. */ @@ -3733,19 +3734,12 @@ static void /* __init_or_exit */ fsg_unbind(struct usb_gadget *gadget) } /* Free the data buffers */ - for (i = 0; i < NUM_BUFFERS; ++i) { - struct fsg_buffhd *bh = &fsg->buffhds[i]; - - if (bh->buf) - usb_ep_free_buffer(fsg->bulk_in, bh->buf, bh->dma, - mod_data.buflen); - } + for (i = 0; i < NUM_BUFFERS; ++i) + kfree(fsg->buffhds[i].buf); /* Free the request and buffer for endpoint 0 */ if (req) { - if (req->buf) - usb_ep_free_buffer(fsg->ep0, req->buf, - req->dma, EP0_BUFSIZE); + kfree(req->buf); usb_ep_free_request(fsg->ep0, req); } @@ -3963,8 +3957,7 @@ static int __init fsg_bind(struct usb_gadget *gadget) #endif if (gadget->is_otg) { - otg_desc.bmAttributes |= USB_OTG_HNP, - config_desc.bmAttributes |= USB_CONFIG_ATT_WAKEUP; + otg_desc.bmAttributes |= USB_OTG_HNP; } rc = -ENOMEM; @@ -3973,8 +3966,7 @@ static int __init fsg_bind(struct usb_gadget *gadget) fsg->ep0req = req = usb_ep_alloc_request(fsg->ep0, GFP_KERNEL); if (!req) goto out; - req->buf = usb_ep_alloc_buffer(fsg->ep0, EP0_BUFSIZE, - &req->dma, GFP_KERNEL); + req->buf = kmalloc(EP0_BUFSIZE, GFP_KERNEL); if (!req->buf) goto out; req->complete = ep0_complete; @@ -3986,8 +3978,7 @@ static int __init fsg_bind(struct usb_gadget *gadget) /* Allocate for the bulk-in endpoint. We assume that * the buffer will also work with the bulk-out (and * interrupt-in) endpoint. */ - bh->buf = usb_ep_alloc_buffer(fsg->bulk_in, mod_data.buflen, - &bh->dma, GFP_KERNEL); + bh->buf = kmalloc(mod_data.buflen, GFP_KERNEL); if (!bh->buf) goto out; bh->next = bh + 1; diff --git a/drivers/usb/gadget/fsl_usb2_udc.c b/drivers/usb/gadget/fsl_usb2_udc.c index 3ca2b3159f00..d57bcfbc08a5 100644 --- a/drivers/usb/gadget/fsl_usb2_udc.c +++ b/drivers/usb/gadget/fsl_usb2_udc.c @@ -228,7 +228,7 @@ static int dr_controller_setup(struct fsl_udc *udc) /* Config PHY interface */ portctrl = fsl_readl(&dr_regs->portsc1); - portctrl &= ~(PORTSCX_PHY_TYPE_SEL & PORTSCX_PORT_WIDTH); + portctrl &= ~(PORTSCX_PHY_TYPE_SEL | PORTSCX_PORT_WIDTH); switch (udc->phy_mode) { case FSL_USB2_PHY_ULPI: portctrl |= PORTSCX_PTS_ULPI; @@ -601,39 +601,6 @@ static void fsl_free_request(struct usb_ep *_ep, struct usb_request *_req) kfree(req); } -/*------------------------------------------------------------------ - * Allocate an I/O buffer -*---------------------------------------------------------------------*/ -static void *fsl_alloc_buffer(struct usb_ep *_ep, unsigned bytes, - dma_addr_t *dma, gfp_t gfp_flags) -{ - struct fsl_ep *ep; - - if (!_ep) - return NULL; - - ep = container_of(_ep, struct fsl_ep, ep); - - return dma_alloc_coherent(ep->udc->gadget.dev.parent, - bytes, dma, gfp_flags); -} - -/*------------------------------------------------------------------ - * frees an i/o buffer -*---------------------------------------------------------------------*/ -static void fsl_free_buffer(struct usb_ep *_ep, void *buf, - dma_addr_t dma, unsigned bytes) -{ - struct fsl_ep *ep; - - if (!_ep) - return; - - ep = container_of(_ep, struct fsl_ep, ep); - - dma_free_coherent(ep->udc->gadget.dev.parent, bytes, buf, dma); -} - /*-------------------------------------------------------------------------*/ static int fsl_queue_td(struct fsl_ep *ep, struct fsl_req *req) { @@ -1047,9 +1014,6 @@ static struct usb_ep_ops fsl_ep_ops = { .alloc_request = fsl_alloc_request, .free_request = fsl_free_request, - .alloc_buffer = fsl_alloc_buffer, - .free_buffer = fsl_free_buffer, - .queue = fsl_ep_queue, .dequeue = fsl_ep_dequeue, @@ -1313,31 +1277,32 @@ static void setup_received_irq(struct fsl_udc *udc, udc_reset_ep_queue(udc, 0); + /* We process some stardard setup requests here */ switch (setup->bRequest) { - /* Request that need Data+Status phase from udc */ case USB_REQ_GET_STATUS: - if ((setup->bRequestType & (USB_DIR_IN | USB_TYPE_STANDARD)) + /* Data+Status phase from udc */ + if ((setup->bRequestType & (USB_DIR_IN | USB_TYPE_MASK)) != (USB_DIR_IN | USB_TYPE_STANDARD)) break; ch9getstatus(udc, setup->bRequestType, wValue, wIndex, wLength); - break; + return; - /* Requests that need Status phase from udc */ case USB_REQ_SET_ADDRESS: + /* Status phase from udc */ if (setup->bRequestType != (USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE)) break; ch9setaddress(udc, wValue, wIndex, wLength); - break; + return; - /* Handled by udc, no data, status by udc */ case USB_REQ_CLEAR_FEATURE: case USB_REQ_SET_FEATURE: - { /* status transaction */ + /* Status phase from udc */ + { int rc = -EOPNOTSUPP; - if ((setup->bRequestType & USB_RECIP_MASK) - == USB_RECIP_ENDPOINT) { + if ((setup->bRequestType & (USB_RECIP_MASK | USB_TYPE_MASK)) + == (USB_RECIP_ENDPOINT | USB_TYPE_STANDARD)) { int pipe = get_pipe_by_windex(wIndex); struct fsl_ep *ep; @@ -1351,8 +1316,9 @@ static void setup_received_irq(struct fsl_udc *udc, ? 1 : 0); spin_lock(&udc->lock); - } else if ((setup->bRequestType & USB_RECIP_MASK) - == USB_RECIP_DEVICE) { + } else if ((setup->bRequestType & (USB_RECIP_MASK + | USB_TYPE_MASK)) == (USB_RECIP_DEVICE + | USB_TYPE_STANDARD)) { /* Note: The driver has not include OTG support yet. * This will be set when OTG support is added */ if (!udc->gadget.is_otg) @@ -1365,39 +1331,42 @@ static void setup_received_irq(struct fsl_udc *udc, USB_DEVICE_A_ALT_HNP_SUPPORT) udc->gadget.a_alt_hnp_support = 1; rc = 0; - } + } else + break; + if (rc == 0) { if (ep0_prime_status(udc, EP_DIR_IN)) ep0stall(udc); } - break; + return; } - /* Requests handled by gadget */ - default: - if (wLength) { - /* Data phase from gadget, status phase from udc */ - udc->ep0_dir = (setup->bRequestType & USB_DIR_IN) - ? USB_DIR_IN : USB_DIR_OUT; - spin_unlock(&udc->lock); - if (udc->driver->setup(&udc->gadget, - &udc->local_setup_buff) < 0) - ep0stall(udc); - spin_lock(&udc->lock); - udc->ep0_state = (setup->bRequestType & USB_DIR_IN) - ? DATA_STATE_XMIT : DATA_STATE_RECV; - } else { - /* No data phase, IN status from gadget */ - udc->ep0_dir = USB_DIR_IN; - spin_unlock(&udc->lock); - if (udc->driver->setup(&udc->gadget, - &udc->local_setup_buff) < 0) - ep0stall(udc); - spin_lock(&udc->lock); - udc->ep0_state = WAIT_FOR_OUT_STATUS; - } + default: break; } + + /* Requests handled by gadget */ + if (wLength) { + /* Data phase from gadget, status phase from udc */ + udc->ep0_dir = (setup->bRequestType & USB_DIR_IN) + ? USB_DIR_IN : USB_DIR_OUT; + spin_unlock(&udc->lock); + if (udc->driver->setup(&udc->gadget, + &udc->local_setup_buff) < 0) + ep0stall(udc); + spin_lock(&udc->lock); + udc->ep0_state = (setup->bRequestType & USB_DIR_IN) + ? DATA_STATE_XMIT : DATA_STATE_RECV; + } else { + /* No data phase, IN status from gadget */ + udc->ep0_dir = USB_DIR_IN; + spin_unlock(&udc->lock); + if (udc->driver->setup(&udc->gadget, + &udc->local_setup_buff) < 0) + ep0stall(udc); + spin_lock(&udc->lock); + udc->ep0_state = WAIT_FOR_OUT_STATUS; + } } /* Process request for Data or Status phase of ep0 @@ -2189,27 +2158,19 @@ static void fsl_udc_release(struct device *dev) * init resource for globle controller * Return the udc handle on success or NULL on failure ------------------------------------------------------------------*/ -static struct fsl_udc *__init struct_udc_setup(struct platform_device *pdev) +static int __init struct_udc_setup(struct fsl_udc *udc, + struct platform_device *pdev) { - struct fsl_udc *udc; struct fsl_usb2_platform_data *pdata; size_t size; - udc = kzalloc(sizeof(struct fsl_udc), GFP_KERNEL); - if (udc == NULL) { - ERR("malloc udc failed\n"); - return NULL; - } - pdata = pdev->dev.platform_data; udc->phy_mode = pdata->phy_mode; - /* max_ep_nr is bidirectional ep number, max_ep doubles the number */ - udc->max_ep = pdata->max_ep_nr * 2; udc->eps = kzalloc(sizeof(struct fsl_ep) * udc->max_ep, GFP_KERNEL); if (!udc->eps) { ERR("malloc fsl_ep failed\n"); - goto cleanup; + return -1; } /* initialized QHs, take care of alignment */ @@ -2225,7 +2186,7 @@ static struct fsl_udc *__init struct_udc_setup(struct platform_device *pdev) if (!udc->ep_qh) { ERR("malloc QHs for udc failed\n"); kfree(udc->eps); - goto cleanup; + return -1; } udc->ep_qh_size = size; @@ -2244,11 +2205,7 @@ static struct fsl_udc *__init struct_udc_setup(struct platform_device *pdev) udc->remote_wakeup = 0; /* default to 0 on reset */ spin_lock_init(&udc->lock); - return udc; - -cleanup: - kfree(udc); - return NULL; + return 0; } /*---------------------------------------------------------------- @@ -2287,35 +2244,37 @@ static int __init struct_ep_setup(struct fsl_udc *udc, unsigned char index, } /* Driver probe function - * all intialize operations implemented here except enabling usb_intr reg + * all intialization operations implemented here except enabling usb_intr reg + * board setup should have been done in the platform code */ static int __init fsl_udc_probe(struct platform_device *pdev) { struct resource *res; int ret = -ENODEV; unsigned int i; + u32 dccparams; if (strcmp(pdev->name, driver_name)) { VDBG("Wrong device\n"); return -ENODEV; } - /* board setup should have been done in the platform code */ - - /* Initialize the udc structure including QH member and other member */ - udc_controller = struct_udc_setup(pdev); - if (!udc_controller) { - VDBG("udc_controller is NULL \n"); + udc_controller = kzalloc(sizeof(struct fsl_udc), GFP_KERNEL); + if (udc_controller == NULL) { + ERR("malloc udc failed\n"); return -ENOMEM; } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) + if (!res) { + kfree(udc_controller); return -ENXIO; + } if (!request_mem_region(res->start, res->end - res->start + 1, driver_name)) { ERR("request mem region for %s failed \n", pdev->name); + kfree(udc_controller); return -EBUSY; } @@ -2328,13 +2287,24 @@ static int __init fsl_udc_probe(struct platform_device *pdev) usb_sys_regs = (struct usb_sys_interface *) ((u32)dr_regs + USB_DR_SYS_OFFSET); + /* Read Device Controller Capability Parameters register */ + dccparams = fsl_readl(&dr_regs->dccparams); + if (!(dccparams & DCCPARAMS_DC)) { + ERR("This SOC doesn't support device role\n"); + ret = -ENODEV; + goto err2; + } + /* Get max device endpoints */ + /* DEN is bidirectional ep number, max_ep doubles the number */ + udc_controller->max_ep = (dccparams & DCCPARAMS_DEN_MASK) * 2; + udc_controller->irq = platform_get_irq(pdev, 0); if (!udc_controller->irq) { ret = -ENODEV; goto err2; } - ret = request_irq(udc_controller->irq, fsl_udc_irq, SA_SHIRQ, + ret = request_irq(udc_controller->irq, fsl_udc_irq, IRQF_SHARED, driver_name, udc_controller); if (ret != 0) { ERR("cannot request irq %d err %d \n", @@ -2342,6 +2312,13 @@ static int __init fsl_udc_probe(struct platform_device *pdev) goto err2; } + /* Initialize the udc structure including QH member and other member */ + if (struct_udc_setup(udc_controller, pdev)) { + ERR("Can't initialize udc data structure\n"); + ret = -ENOMEM; + goto err3; + } + /* initialize usb hw reg except for regs for EP, * leave usbintr reg untouched */ dr_controller_setup(udc_controller); @@ -2403,6 +2380,7 @@ err2: iounmap(dr_regs); err1: release_mem_region(res->start, res->end - res->start + 1); + kfree(udc_controller); return ret; } diff --git a/drivers/usb/gadget/fsl_usb2_udc.h b/drivers/usb/gadget/fsl_usb2_udc.h index c6291e046507..832ab82b4882 100644 --- a/drivers/usb/gadget/fsl_usb2_udc.h +++ b/drivers/usb/gadget/fsl_usb2_udc.h @@ -101,6 +101,10 @@ struct usb_sys_interface { #define WAIT_FOR_OUT_STATUS 3 #define DATA_STATE_RECV 4 +/* Device Controller Capability Parameter register */ +#define DCCPARAMS_DC 0x00000080 +#define DCCPARAMS_DEN_MASK 0x0000001f + /* Frame Index Register Bit Masks */ #define USB_FRINDEX_MASKS 0x3fff /* USB CMD Register Bit Masks */ diff --git a/drivers/usb/gadget/gadget_chips.h b/drivers/usb/gadget/gadget_chips.h index 9adf92c098ca..3515d338fa4a 100644 --- a/drivers/usb/gadget/gadget_chips.h +++ b/drivers/usb/gadget/gadget_chips.h @@ -8,6 +8,8 @@ * (And avoiding all runtime comparisons in typical one-choice configs!) * * NOTE: some of these controller drivers may not be available yet. + * Some are available on 2.4 kernels; several are available, but not + * yet pushed in the 2.6 mainline tree. */ #ifdef CONFIG_USB_GADGET_NET2280 #define gadget_is_net2280(g) !strcmp("net2280", (g)->name) @@ -15,6 +17,12 @@ #define gadget_is_net2280(g) 0 #endif +#ifdef CONFIG_USB_GADGET_AMD5536UDC +#define gadget_is_amd5536udc(g) !strcmp("amd5536udc", (g)->name) +#else +#define gadget_is_amd5536udc(g) 0 +#endif + #ifdef CONFIG_USB_GADGET_DUMMY_HCD #define gadget_is_dummy(g) !strcmp("dummy_udc", (g)->name) #else @@ -33,12 +41,14 @@ #define gadget_is_goku(g) 0 #endif +/* SH3 UDC -- not yet ported 2.4 --> 2.6 */ #ifdef CONFIG_USB_GADGET_SUPERH #define gadget_is_sh(g) !strcmp("sh_udc", (g)->name) #else #define gadget_is_sh(g) 0 #endif +/* not yet stable on 2.6 (would help "original Zaurus") */ #ifdef CONFIG_USB_GADGET_SA1100 #define gadget_is_sa1100(g) !strcmp("sa1100_udc", (g)->name) #else @@ -51,6 +61,7 @@ #define gadget_is_lh7a40x(g) 0 #endif +/* handhelds.org tree (?) */ #ifdef CONFIG_USB_GADGET_MQ11XX #define gadget_is_mq11xx(g) !strcmp("mq11xx_udc", (g)->name) #else @@ -63,12 +74,14 @@ #define gadget_is_omap(g) 0 #endif +/* not yet ported 2.4 --> 2.6 */ #ifdef CONFIG_USB_GADGET_N9604 #define gadget_is_n9604(g) !strcmp("n9604_udc", (g)->name) #else #define gadget_is_n9604(g) 0 #endif +/* various unstable versions available */ #ifdef CONFIG_USB_GADGET_PXA27X #define gadget_is_pxa27x(g) !strcmp("pxa27x_udc", (g)->name) #else @@ -81,10 +94,10 @@ #define gadget_is_arcotg(g) 0 #endif -#ifdef CONFIG_USB_GADGET_HUSB2DEV -#define gadget_is_husb2dev(g) !strcmp("husb2_udc", (g)->name) +#ifdef CONFIG_USB_GADGET_ATMEL_USBA +#define gadget_is_atmel_usba(g) !strcmp("atmel_usba_udc", (g)->name) #else -#define gadget_is_husb2dev(g) 0 +#define gadget_is_atmel_usba(g) 0 #endif #ifdef CONFIG_USB_GADGET_S3C2410 @@ -99,6 +112,7 @@ #define gadget_is_at91(g) 0 #endif +/* status unclear */ #ifdef CONFIG_USB_GADGET_IMX #define gadget_is_imx(g) !strcmp("imx_udc", (g)->name) #else @@ -112,6 +126,7 @@ #endif /* Mentor high speed function controller */ +/* from Montavista kernel (?) */ #ifdef CONFIG_USB_GADGET_MUSBHSFC #define gadget_is_musbhsfc(g) !strcmp("musbhsfc_udc", (g)->name) #else @@ -125,12 +140,20 @@ #define gadget_is_musbhdrc(g) 0 #endif +/* from Montavista kernel (?) */ #ifdef CONFIG_USB_GADGET_MPC8272 #define gadget_is_mpc8272(g) !strcmp("mpc8272_udc", (g)->name) #else #define gadget_is_mpc8272(g) 0 #endif +#ifdef CONFIG_USB_GADGET_M66592 +#define gadget_is_m66592(g) !strcmp("m66592_udc", (g)->name) +#else +#define gadget_is_m66592(g) 0 +#endif + + // CONFIG_USB_GADGET_SX2 // CONFIG_USB_GADGET_AU1X00 // ... @@ -187,10 +210,14 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget) return 0x16; else if (gadget_is_mpc8272(gadget)) return 0x17; - else if (gadget_is_husb2dev(gadget)) + else if (gadget_is_atmel_usba(gadget)) return 0x18; else if (gadget_is_fsl_usb2(gadget)) return 0x19; + else if (gadget_is_amd5536udc(gadget)) + return 0x20; + else if (gadget_is_m66592(gadget)) + return 0x21; else if (gadget_is_arcotg(gadget)) return 0x1A; return -ENOENT; diff --git a/drivers/usb/gadget/gmidi.c b/drivers/usb/gadget/gmidi.c index d08a8d0e6427..1c5aa49d7432 100644 --- a/drivers/usb/gadget/gmidi.c +++ b/drivers/usb/gadget/gmidi.c @@ -1248,17 +1248,11 @@ autoconf_fail: tasklet_init(&dev->tasklet, gmidi_in_tasklet, (unsigned long)dev); /* preallocate control response and buffer */ - dev->req = usb_ep_alloc_request(gadget->ep0, GFP_KERNEL); + dev->req = alloc_ep_req(gadget->ep0, USB_BUFSIZ); if (!dev->req) { err = -ENOMEM; goto fail; } - dev->req->buf = usb_ep_alloc_buffer(gadget->ep0, USB_BUFSIZ, - &dev->req->dma, GFP_KERNEL); - if (!dev->req->buf) { - err = -ENOMEM; - goto fail; - } dev->req->complete = gmidi_setup_complete; diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c index ae931af05cef..349b8166f34a 100644 --- a/drivers/usb/gadget/goku_udc.c +++ b/drivers/usb/gadget/goku_udc.c @@ -20,7 +20,6 @@ * - DMA works with ep1 (OUT transfers) and ep2 (IN transfers). */ -#undef DEBUG // #define VERBOSE /* extra debug messages (success too) */ // #define USB_TRACE /* packet-level success messages */ @@ -296,51 +295,6 @@ goku_free_request(struct usb_ep *_ep, struct usb_request *_req) /*-------------------------------------------------------------------------*/ -/* allocating buffers this way eliminates dma mapping overhead, which - * on some platforms will mean eliminating a per-io buffer copy. with - * some kinds of system caches, further tweaks may still be needed. - */ -static void * -goku_alloc_buffer(struct usb_ep *_ep, unsigned bytes, - dma_addr_t *dma, gfp_t gfp_flags) -{ - void *retval; - struct goku_ep *ep; - - ep = container_of(_ep, struct goku_ep, ep); - if (!_ep) - return NULL; - *dma = DMA_ADDR_INVALID; - - if (ep->dma) { - /* the main problem with this call is that it wastes memory - * on typical 1/N page allocations: it allocates 1-N pages. - */ -#warning Using dma_alloc_coherent even with buffers smaller than a page. - retval = dma_alloc_coherent(&ep->dev->pdev->dev, - bytes, dma, gfp_flags); - } else - retval = kmalloc(bytes, gfp_flags); - return retval; -} - -static void -goku_free_buffer(struct usb_ep *_ep, void *buf, dma_addr_t dma, unsigned bytes) -{ - /* free memory into the right allocator */ - if (dma != DMA_ADDR_INVALID) { - struct goku_ep *ep; - - ep = container_of(_ep, struct goku_ep, ep); - if (!_ep) - return; - dma_free_coherent(&ep->dev->pdev->dev, bytes, buf, dma); - } else - kfree (buf); -} - -/*-------------------------------------------------------------------------*/ - static void done(struct goku_ep *ep, struct goku_request *req, int status) { @@ -485,7 +439,7 @@ top: /* use ep1/ep2 double-buffering for OUT */ if (!(size & PACKET_ACTIVE)) size = readl(®s->EPxSizeLB[ep->num]); - if (!(size & PACKET_ACTIVE)) // "can't happen" + if (!(size & PACKET_ACTIVE)) /* "can't happen" */ break; size &= DATASIZE; /* EPxSizeH == 0 */ @@ -1026,9 +980,6 @@ static struct usb_ep_ops goku_ep_ops = { .alloc_request = goku_alloc_request, .free_request = goku_free_request, - .alloc_buffer = goku_alloc_buffer, - .free_buffer = goku_free_buffer, - .queue = goku_queue, .dequeue = goku_dequeue, @@ -1140,17 +1091,17 @@ udc_proc_read(char *buffer, char **start, off_t off, int count, is_usb_connected ? ((tmp & PW_PULLUP) ? "full speed" : "powered") : "disconnected", - ({char *tmp; + ({char *state; switch(dev->ep0state){ - case EP0_DISCONNECT: tmp = "ep0_disconnect"; break; - case EP0_IDLE: tmp = "ep0_idle"; break; - case EP0_IN: tmp = "ep0_in"; break; - case EP0_OUT: tmp = "ep0_out"; break; - case EP0_STATUS: tmp = "ep0_status"; break; - case EP0_STALL: tmp = "ep0_stall"; break; - case EP0_SUSPEND: tmp = "ep0_suspend"; break; - default: tmp = "ep0_?"; break; - } tmp; }) + case EP0_DISCONNECT: state = "ep0_disconnect"; break; + case EP0_IDLE: state = "ep0_idle"; break; + case EP0_IN: state = "ep0_in"; break; + case EP0_OUT: state = "ep0_out"; break; + case EP0_STATUS: state = "ep0_status"; break; + case EP0_STALL: state = "ep0_stall"; break; + case EP0_SUSPEND: state = "ep0_suspend"; break; + default: state = "ep0_?"; break; + } state; }) ); size -= t; next += t; @@ -1195,7 +1146,6 @@ udc_proc_read(char *buffer, char **start, off_t off, int count, for (i = 0; i < 4; i++) { struct goku_ep *ep = &dev->ep [i]; struct goku_request *req; - int t; if (i && !ep->desc) continue; @@ -1283,7 +1233,7 @@ done: static void udc_reinit (struct goku_udc *dev) { static char *names [] = { "ep0", "ep1-bulk", "ep2-bulk", "ep3-bulk" }; - + unsigned i; INIT_LIST_HEAD (&dev->gadget.ep_list); @@ -1827,14 +1777,13 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id) } /* alloc, and start init */ - dev = kmalloc (sizeof *dev, GFP_KERNEL); + dev = kzalloc (sizeof *dev, GFP_KERNEL); if (dev == NULL){ pr_debug("enomem %s\n", pci_name(pdev)); retval = -ENOMEM; goto done; } - memset(dev, 0, sizeof *dev); spin_lock_init(&dev->lock); dev->pdev = pdev; dev->gadget.ops = &goku_ops; @@ -1896,9 +1845,9 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id) /* done */ the_controller = dev; - device_register(&dev->gadget.dev); - - return 0; + retval = device_register(&dev->gadget.dev); + if (retval == 0) + return 0; done: if (dev) @@ -1910,8 +1859,8 @@ done: /*-------------------------------------------------------------------------*/ static struct pci_device_id pci_ids [] = { { - .class = ((PCI_CLASS_SERIAL_USB << 8) | 0xfe), - .class_mask = ~0, + .class = ((PCI_CLASS_SERIAL_USB << 8) | 0xfe), + .class_mask = ~0, .vendor = 0x102f, /* Toshiba */ .device = 0x0107, /* this UDC */ .subvendor = PCI_ANY_ID, diff --git a/drivers/usb/gadget/goku_udc.h b/drivers/usb/gadget/goku_udc.h index ea8c8e58cabf..bc4eb1e0b507 100644 --- a/drivers/usb/gadget/goku_udc.h +++ b/drivers/usb/gadget/goku_udc.h @@ -41,8 +41,10 @@ struct goku_udc_regs { #define INT_SYSERROR 0x40000 #define INT_PWRDETECT 0x80000 -#define INT_DEVWIDE (INT_PWRDETECT|INT_SYSERROR/*|INT_ERR*/|INT_USBRESET|INT_SUSPEND) -#define INT_EP0 (INT_SETUP|INT_ENDPOINT0/*|INT_STATUS*/|INT_STATUSNAK) +#define INT_DEVWIDE \ + (INT_PWRDETECT|INT_SYSERROR/*|INT_ERR*/|INT_USBRESET|INT_SUSPEND) +#define INT_EP0 \ + (INT_SETUP|INT_ENDPOINT0/*|INT_STATUS*/|INT_STATUSNAK) u32 dma_master; #define MST_EOPB_DIS 0x0800 @@ -231,7 +233,7 @@ struct goku_request { enum ep0state { EP0_DISCONNECT, /* no host */ EP0_IDLE, /* between STATUS ack and SETUP report */ - EP0_IN, EP0_OUT, /* data stage */ + EP0_IN, EP0_OUT, /* data stage */ EP0_STATUS, /* status stage */ EP0_STALL, /* data or status stages */ EP0_SUSPEND, /* usb suspend */ @@ -242,7 +244,7 @@ struct goku_udc { struct usb_gadget gadget; spinlock_t lock; struct goku_ep ep[4]; - struct usb_gadget_driver *driver; + struct usb_gadget_driver *driver; enum ep0state ep0state; unsigned got_irq:1, diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index 46d0e5252744..173004f60fea 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -37,7 +37,7 @@ #include <linux/device.h> #include <linux/moduleparam.h> -#include <linux/usb_gadgetfs.h> +#include <linux/usb/gadgetfs.h> #include <linux/usb_gadget.h> @@ -923,7 +923,7 @@ static void clean_req (struct usb_ep *ep, struct usb_request *req) struct dev_data *dev = ep->driver_data; if (req->buf != dev->rbuf) { - usb_ep_free_buffer (ep, req->buf, req->dma, req->length); + kfree(req->buf); req->buf = dev->rbuf; req->dma = DMA_ADDR_INVALID; } @@ -963,8 +963,8 @@ static int setup_req (struct usb_ep *ep, struct usb_request *req, u16 len) return -EBUSY; } if (len > sizeof (dev->rbuf)) - req->buf = usb_ep_alloc_buffer (ep, len, &req->dma, GFP_ATOMIC); - if (req->buf == 0) { + req->buf = kmalloc(len, GFP_ATOMIC); + if (req->buf == NULL) { req->buf = dev->rbuf; return -ENOMEM; } @@ -1394,7 +1394,7 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) dev->setup_abort = 0; if (dev->state == STATE_DEV_UNCONNECTED) { #ifdef CONFIG_USB_GADGET_DUALSPEED - if (gadget->speed == USB_SPEED_HIGH && dev->hs_config == 0) { + if (gadget->speed == USB_SPEED_HIGH && dev->hs_config == NULL) { spin_unlock(&dev->lock); ERROR (dev, "no high speed config??\n"); return -EINVAL; @@ -1505,7 +1505,7 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) } break; -#ifndef CONFIG_USB_GADGETFS_PXA2XX +#ifndef CONFIG_USB_GADGET_PXA2XX /* PXA automagically handles this request too */ case USB_REQ_GET_CONFIGURATION: if (ctrl->bRequestType != 0x80) diff --git a/drivers/usb/gadget/lh7a40x_udc.c b/drivers/usb/gadget/lh7a40x_udc.c index a0a73c08a344..e78c2ddc1f88 100644 --- a/drivers/usb/gadget/lh7a40x_udc.c +++ b/drivers/usb/gadget/lh7a40x_udc.c @@ -75,10 +75,6 @@ static int lh7a40x_ep_enable(struct usb_ep *ep, static int lh7a40x_ep_disable(struct usb_ep *ep); static struct usb_request *lh7a40x_alloc_request(struct usb_ep *ep, gfp_t); static void lh7a40x_free_request(struct usb_ep *ep, struct usb_request *); -static void *lh7a40x_alloc_buffer(struct usb_ep *ep, unsigned, dma_addr_t *, - gfp_t); -static void lh7a40x_free_buffer(struct usb_ep *ep, void *, dma_addr_t, - unsigned); static int lh7a40x_queue(struct usb_ep *ep, struct usb_request *, gfp_t); static int lh7a40x_dequeue(struct usb_ep *ep, struct usb_request *); static int lh7a40x_set_halt(struct usb_ep *ep, int); @@ -104,9 +100,6 @@ static struct usb_ep_ops lh7a40x_ep_ops = { .alloc_request = lh7a40x_alloc_request, .free_request = lh7a40x_free_request, - .alloc_buffer = lh7a40x_alloc_buffer, - .free_buffer = lh7a40x_free_buffer, - .queue = lh7a40x_queue, .dequeue = lh7a40x_dequeue, @@ -1134,26 +1127,6 @@ static void lh7a40x_free_request(struct usb_ep *ep, struct usb_request *_req) kfree(req); } -static void *lh7a40x_alloc_buffer(struct usb_ep *ep, unsigned bytes, - dma_addr_t * dma, gfp_t gfp_flags) -{ - char *retval; - - DEBUG("%s (%p, %d, %d)\n", __FUNCTION__, ep, bytes, gfp_flags); - - retval = kmalloc(bytes, gfp_flags & ~(__GFP_DMA | __GFP_HIGHMEM)); - if (retval) - *dma = virt_to_bus(retval); - return retval; -} - -static void lh7a40x_free_buffer(struct usb_ep *ep, void *buf, dma_addr_t dma, - unsigned bytes) -{ - DEBUG("%s, %p\n", __FUNCTION__, ep); - kfree(buf); -} - /** Queue one request * Kickstart transfer if needed * NOTE: Sets INDEX register diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c index d975ecf18e00..c3d364ecd4f8 100644 --- a/drivers/usb/gadget/net2280.c +++ b/drivers/usb/gadget/net2280.c @@ -450,100 +450,6 @@ net2280_free_request (struct usb_ep *_ep, struct usb_request *_req) /*-------------------------------------------------------------------------*/ -/* - * dma-coherent memory allocation (for dma-capable endpoints) - * - * NOTE: the dma_*_coherent() API calls suck. Most implementations are - * (a) page-oriented, so small buffers lose big; and (b) asymmetric with - * respect to calls with irqs disabled: alloc is safe, free is not. - * We currently work around (b), but not (a). - */ - -static void * -net2280_alloc_buffer ( - struct usb_ep *_ep, - unsigned bytes, - dma_addr_t *dma, - gfp_t gfp_flags -) -{ - void *retval; - struct net2280_ep *ep; - - ep = container_of (_ep, struct net2280_ep, ep); - if (!_ep) - return NULL; - *dma = DMA_ADDR_INVALID; - - if (ep->dma) - retval = dma_alloc_coherent(&ep->dev->pdev->dev, - bytes, dma, gfp_flags); - else - retval = kmalloc(bytes, gfp_flags); - return retval; -} - -static DEFINE_SPINLOCK(buflock); -static LIST_HEAD(buffers); - -struct free_record { - struct list_head list; - struct device *dev; - unsigned bytes; - dma_addr_t dma; -}; - -static void do_free(unsigned long ignored) -{ - spin_lock_irq(&buflock); - while (!list_empty(&buffers)) { - struct free_record *buf; - - buf = list_entry(buffers.next, struct free_record, list); - list_del(&buf->list); - spin_unlock_irq(&buflock); - - dma_free_coherent(buf->dev, buf->bytes, buf, buf->dma); - - spin_lock_irq(&buflock); - } - spin_unlock_irq(&buflock); -} - -static DECLARE_TASKLET(deferred_free, do_free, 0); - -static void -net2280_free_buffer ( - struct usb_ep *_ep, - void *address, - dma_addr_t dma, - unsigned bytes -) { - /* free memory into the right allocator */ - if (dma != DMA_ADDR_INVALID) { - struct net2280_ep *ep; - struct free_record *buf = address; - unsigned long flags; - - ep = container_of(_ep, struct net2280_ep, ep); - if (!_ep) - return; - - ep = container_of (_ep, struct net2280_ep, ep); - buf->dev = &ep->dev->pdev->dev; - buf->bytes = bytes; - buf->dma = dma; - - spin_lock_irqsave(&buflock, flags); - list_add_tail(&buf->list, &buffers); - tasklet_schedule(&deferred_free); - spin_unlock_irqrestore(&buflock, flags); - } else - kfree (address); -} - -/*-------------------------------------------------------------------------*/ - /* load a packet into the fifo we use for usb IN transfers. * works for all endpoints. * @@ -1392,9 +1298,6 @@ static const struct usb_ep_ops net2280_ep_ops = { .alloc_request = net2280_alloc_request, .free_request = net2280_free_request, - .alloc_buffer = net2280_alloc_buffer, - .free_buffer = net2280_free_buffer, - .queue = net2280_queue, .dequeue = net2280_dequeue, @@ -2964,7 +2867,7 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id) , &dev->pci->pcimstctl); /* erratum 0115 shouldn't appear: Linux inits PCI_LATENCY_TIMER */ pci_set_master (pdev); - pci_set_mwi (pdev); + pci_try_set_mwi (pdev); /* ... also flushes any posted pci writes */ dev->chiprev = get_idx_reg (dev->regs, REG_CHIPREV) & 0xffff; diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c index c4975a6cf777..9b0f0925dddf 100644 --- a/drivers/usb/gadget/omap_udc.c +++ b/drivers/usb/gadget/omap_udc.c @@ -296,111 +296,6 @@ omap_free_request(struct usb_ep *ep, struct usb_request *_req) /*-------------------------------------------------------------------------*/ -/* - * dma-coherent memory allocation (for dma-capable endpoints) - * - * NOTE: the dma_*_coherent() API calls suck. Most implementations are - * (a) page-oriented, so small buffers lose big; and (b) asymmetric with - * respect to calls with irqs disabled: alloc is safe, free is not. - * We currently work around (b), but not (a). - */ - -static void * -omap_alloc_buffer( - struct usb_ep *_ep, - unsigned bytes, - dma_addr_t *dma, - gfp_t gfp_flags -) -{ - void *retval; - struct omap_ep *ep; - - if (!_ep) - return NULL; - - ep = container_of(_ep, struct omap_ep, ep); - if (use_dma && ep->has_dma) { - static int warned; - if (!warned && bytes < PAGE_SIZE) { - dev_warn(ep->udc->gadget.dev.parent, - "using dma_alloc_coherent for " - "small allocations wastes memory\n"); - warned++; - } - return dma_alloc_coherent(ep->udc->gadget.dev.parent, - bytes, dma, gfp_flags); - } - - retval = kmalloc(bytes, gfp_flags); - if (retval) - *dma = virt_to_phys(retval); - return retval; -} - -static DEFINE_SPINLOCK(buflock); -static LIST_HEAD(buffers); - -struct free_record { - struct list_head list; - struct device *dev; - unsigned bytes; - dma_addr_t dma; -}; - -static void do_free(unsigned long ignored) -{ - spin_lock_irq(&buflock); - while (!list_empty(&buffers)) { - struct free_record *buf; - - buf = list_entry(buffers.next, struct free_record, list); - list_del(&buf->list); - spin_unlock_irq(&buflock); - - dma_free_coherent(buf->dev, buf->bytes, buf, buf->dma); - - spin_lock_irq(&buflock); - } - spin_unlock_irq(&buflock); -} - -static DECLARE_TASKLET(deferred_free, do_free, 0); - -static void omap_free_buffer( - struct usb_ep *_ep, - void *buf, - dma_addr_t dma, - unsigned bytes -) -{ - if (!_ep) { - WARN_ON(1); - return; - } - - /* free memory into the right allocator */ - if (dma != DMA_ADDR_INVALID) { - struct omap_ep *ep; - struct free_record *rec = buf; - unsigned long flags; - - ep = container_of(_ep, struct omap_ep, ep); - - rec->dev = ep->udc->gadget.dev.parent; - rec->bytes = bytes; - rec->dma = dma; - - spin_lock_irqsave(&buflock, flags); - list_add_tail(&rec->list, &buffers); - tasklet_schedule(&deferred_free); - spin_unlock_irqrestore(&buflock, flags); - } else - kfree(buf); -} - -/*-------------------------------------------------------------------------*/ - static void done(struct omap_ep *ep, struct omap_req *req, int status) { @@ -1271,9 +1166,6 @@ static struct usb_ep_ops omap_ep_ops = { .alloc_request = omap_alloc_request, .free_request = omap_free_request, - .alloc_buffer = omap_alloc_buffer, - .free_buffer = omap_free_buffer, - .queue = omap_ep_queue, .dequeue = omap_ep_dequeue, diff --git a/drivers/usb/gadget/pxa2xx_udc.c b/drivers/usb/gadget/pxa2xx_udc.c index 84392e835d5f..1407ad1c8128 100644 --- a/drivers/usb/gadget/pxa2xx_udc.c +++ b/drivers/usb/gadget/pxa2xx_udc.c @@ -24,9 +24,9 @@ * */ -#undef DEBUG // #define VERBOSE DBG_VERBOSE +#include <linux/device.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/ioport.h> @@ -46,19 +46,17 @@ #include <asm/byteorder.h> #include <asm/dma.h> +#include <asm/gpio.h> #include <asm/io.h> #include <asm/system.h> #include <asm/mach-types.h> #include <asm/unaligned.h> #include <asm/hardware.h> -#ifdef CONFIG_ARCH_PXA -#include <asm/arch/pxa-regs.h> -#endif #include <linux/usb/ch9.h> #include <linux/usb_gadget.h> -#include <asm/arch/udc.h> +#include <asm/mach/udc_pxa2xx.h> /* @@ -76,9 +74,17 @@ * it constrains the sorts of USB configuration change events that work. * The errata for these chips are misleading; some "fixed" bugs from * pxa250 a0/a1 b0/b1/b2 sure act like they're still there. + * + * Note that the UDC hardware supports DMA (except on IXP) but that's + * not used here. IN-DMA (to host) is simple enough, when the data is + * suitably aligned (16 bytes) ... the network stack doesn't do that, + * other software can. OUT-DMA is buggy in most chip versions, as well + * as poorly designed (data toggle not automatic). So this driver won't + * bother using DMA. (Mostly-working IN-DMA support was available in + * kernels before 2.6.23, but was never enabled or well tested.) */ -#define DRIVER_VERSION "4-May-2005" +#define DRIVER_VERSION "30-June-2007" #define DRIVER_DESC "PXA 25x USB Device Controller driver" @@ -87,12 +93,7 @@ static const char driver_name [] = "pxa2xx_udc"; static const char ep0name [] = "ep0"; -// #define USE_DMA -// #define USE_OUT_DMA -// #define DISABLE_TEST_MODE - #ifdef CONFIG_ARCH_IXP4XX -#undef USE_DMA /* cpu-specific register addresses are compiled in to this code */ #ifdef CONFIG_ARCH_PXA @@ -104,42 +105,12 @@ static const char ep0name [] = "ep0"; #include "pxa2xx_udc.h" -#ifdef USE_DMA -static int use_dma = 1; -module_param(use_dma, bool, 0); -MODULE_PARM_DESC (use_dma, "true to use dma"); - -static void dma_nodesc_handler (int dmach, void *_ep); -static void kick_dma(struct pxa2xx_ep *ep, struct pxa2xx_request *req); - -#ifdef USE_OUT_DMA -#define DMASTR " (dma support)" -#else -#define DMASTR " (dma in)" -#endif - -#else /* !USE_DMA */ -#define DMASTR " (pio only)" -#undef USE_OUT_DMA -#endif - #ifdef CONFIG_USB_PXA2XX_SMALL #define SIZE_STR " (small)" #else #define SIZE_STR "" #endif -#ifdef DISABLE_TEST_MODE -/* (mode == 0) == no undocumented chip tweaks - * (mode & 1) == double buffer bulk IN - * (mode & 2) == double buffer bulk OUT - * ... so mode = 3 (or 7, 15, etc) does it for both - */ -static ushort fifo_mode = 0; -module_param(fifo_mode, ushort, 0); -MODULE_PARM_DESC (fifo_mode, "pxa2xx udc fifo mode"); -#endif - /* --------------------------------------------------------------------------- * endpoint related parts of the api to the usb controller hardware, * used by gadget driver; and the inner talker-to-hardware core. @@ -155,7 +126,7 @@ static int is_vbus_present(void) struct pxa2xx_udc_mach_info *mach = the_controller->mach; if (mach->gpio_vbus) - return udc_gpio_get(mach->gpio_vbus); + return gpio_get_value(mach->gpio_vbus); if (mach->udc_is_connected) return mach->udc_is_connected(); return 1; @@ -167,7 +138,7 @@ static void pullup_off(void) struct pxa2xx_udc_mach_info *mach = the_controller->mach; if (mach->gpio_pullup) - udc_gpio_set(mach->gpio_pullup, 0); + gpio_set_value(mach->gpio_pullup, 0); else if (mach->udc_command) mach->udc_command(PXA2XX_UDC_CMD_DISCONNECT); } @@ -177,7 +148,7 @@ static void pullup_on(void) struct pxa2xx_udc_mach_info *mach = the_controller->mach; if (mach->gpio_pullup) - udc_gpio_set(mach->gpio_pullup, 1); + gpio_set_value(mach->gpio_pullup, 1); else if (mach->udc_command) mach->udc_command(PXA2XX_UDC_CMD_CONNECT); } @@ -281,9 +252,8 @@ static int pxa2xx_ep_enable (struct usb_ep *_ep, } ep->desc = desc; - ep->dma = -1; ep->stopped = 0; - ep->pio_irqs = ep->dma_irqs = 0; + ep->pio_irqs = 0; ep->ep.maxpacket = le16_to_cpu (desc->wMaxPacketSize); /* flush fifo (mostly for OUT buffers) */ @@ -291,30 +261,6 @@ static int pxa2xx_ep_enable (struct usb_ep *_ep, /* ... reset halt state too, if we could ... */ -#ifdef USE_DMA - /* for (some) bulk and ISO endpoints, try to get a DMA channel and - * bind it to the endpoint. otherwise use PIO. - */ - switch (ep->bmAttributes) { - case USB_ENDPOINT_XFER_ISOC: - if (le16_to_cpu(desc->wMaxPacketSize) % 32) - break; - // fall through - case USB_ENDPOINT_XFER_BULK: - if (!use_dma || !ep->reg_drcmr) - break; - ep->dma = pxa_request_dma ((char *)_ep->name, - (le16_to_cpu (desc->wMaxPacketSize) > 64) - ? DMA_PRIO_MEDIUM /* some iso */ - : DMA_PRIO_LOW, - dma_nodesc_handler, ep); - if (ep->dma >= 0) { - *ep->reg_drcmr = DRCMR_MAPVLD | ep->dma; - DMSG("%s using dma%d\n", _ep->name, ep->dma); - } - } -#endif - DBG(DBG_VERBOSE, "enabled %s\n", _ep->name); return 0; } @@ -334,14 +280,6 @@ static int pxa2xx_ep_disable (struct usb_ep *_ep) nuke (ep, -ESHUTDOWN); -#ifdef USE_DMA - if (ep->dma >= 0) { - *ep->reg_drcmr = 0; - pxa_free_dma (ep->dma); - ep->dma = -1; - } -#endif - /* flush fifo (mostly for IN buffers) */ pxa2xx_ep_fifo_flush (_ep); @@ -390,35 +328,6 @@ pxa2xx_ep_free_request (struct usb_ep *_ep, struct usb_request *_req) kfree(req); } - -/* PXA cache needs flushing with DMA I/O (it's dma-incoherent), but there's - * no device-affinity and the heap works perfectly well for i/o buffers. - * It wastes much less memory than dma_alloc_coherent() would, and even - * prevents cacheline (32 bytes wide) sharing problems. - */ -static void * -pxa2xx_ep_alloc_buffer(struct usb_ep *_ep, unsigned bytes, - dma_addr_t *dma, gfp_t gfp_flags) -{ - char *retval; - - retval = kmalloc (bytes, gfp_flags & ~(__GFP_DMA|__GFP_HIGHMEM)); - if (retval) -#ifdef USE_DMA - *dma = virt_to_bus (retval); -#else - *dma = (dma_addr_t)~0; -#endif - return retval; -} - -static void -pxa2xx_ep_free_buffer(struct usb_ep *_ep, void *buf, dma_addr_t dma, - unsigned bytes) -{ - kfree (buf); -} - /*-------------------------------------------------------------------------*/ /* @@ -518,18 +427,8 @@ write_fifo (struct pxa2xx_ep *ep, struct pxa2xx_request *req) /* requests complete when all IN data is in the FIFO */ if (is_last) { done (ep, req, 0); - if (list_empty(&ep->queue) || unlikely(ep->dma >= 0)) { + if (list_empty(&ep->queue)) pio_irq_disable (ep->bEndpointAddress); -#ifdef USE_DMA - /* unaligned data and zlps couldn't use dma */ - if (unlikely(!list_empty(&ep->queue))) { - req = list_entry(ep->queue.next, - struct pxa2xx_request, queue); - kick_dma(ep,req); - return 0; - } -#endif - } return 1; } @@ -728,182 +627,6 @@ read_ep0_fifo (struct pxa2xx_ep *ep, struct pxa2xx_request *req) return 0; } -#ifdef USE_DMA - -#define MAX_IN_DMA ((DCMD_LENGTH + 1) - BULK_FIFO_SIZE) - -static void -start_dma_nodesc(struct pxa2xx_ep *ep, struct pxa2xx_request *req, int is_in) -{ - u32 dcmd = req->req.length; - u32 buf = req->req.dma; - u32 fifo = io_v2p ((u32)ep->reg_uddr); - - /* caller guarantees there's a packet or more remaining - * - IN may end with a short packet (TSP set separately), - * - OUT is always full length - */ - buf += req->req.actual; - dcmd -= req->req.actual; - ep->dma_fixup = 0; - - /* no-descriptor mode can be simple for bulk-in, iso-in, iso-out */ - DCSR(ep->dma) = DCSR_NODESC; - if (is_in) { - DSADR(ep->dma) = buf; - DTADR(ep->dma) = fifo; - if (dcmd > MAX_IN_DMA) - dcmd = MAX_IN_DMA; - else - ep->dma_fixup = (dcmd % ep->ep.maxpacket) != 0; - dcmd |= DCMD_BURST32 | DCMD_WIDTH1 - | DCMD_FLOWTRG | DCMD_INCSRCADDR; - } else { -#ifdef USE_OUT_DMA - DSADR(ep->dma) = fifo; - DTADR(ep->dma) = buf; - if (ep->bmAttributes != USB_ENDPOINT_XFER_ISOC) - dcmd = ep->ep.maxpacket; - dcmd |= DCMD_BURST32 | DCMD_WIDTH1 - | DCMD_FLOWSRC | DCMD_INCTRGADDR; -#endif - } - DCMD(ep->dma) = dcmd; - DCSR(ep->dma) = DCSR_RUN | DCSR_NODESC - | (unlikely(is_in) - ? DCSR_STOPIRQEN /* use dma_nodesc_handler() */ - : 0); /* use handle_ep() */ -} - -static void kick_dma(struct pxa2xx_ep *ep, struct pxa2xx_request *req) -{ - int is_in = ep->bEndpointAddress & USB_DIR_IN; - - if (is_in) { - /* unaligned tx buffers and zlps only work with PIO */ - if ((req->req.dma & 0x0f) != 0 - || unlikely((req->req.length - req->req.actual) - == 0)) { - pio_irq_enable(ep->bEndpointAddress); - if ((*ep->reg_udccs & UDCCS_BI_TFS) != 0) - (void) write_fifo(ep, req); - } else { - start_dma_nodesc(ep, req, USB_DIR_IN); - } - } else { - if ((req->req.length - req->req.actual) < ep->ep.maxpacket) { - DMSG("%s short dma read...\n", ep->ep.name); - /* we're always set up for pio out */ - read_fifo (ep, req); - } else { - *ep->reg_udccs = UDCCS_BO_DME - | (*ep->reg_udccs & UDCCS_BO_FST); - start_dma_nodesc(ep, req, USB_DIR_OUT); - } - } -} - -static void cancel_dma(struct pxa2xx_ep *ep) -{ - struct pxa2xx_request *req; - u32 tmp; - - if (DCSR(ep->dma) == 0 || list_empty(&ep->queue)) - return; - - DCSR(ep->dma) = 0; - while ((DCSR(ep->dma) & DCSR_STOPSTATE) == 0) - cpu_relax(); - - req = list_entry(ep->queue.next, struct pxa2xx_request, queue); - tmp = DCMD(ep->dma) & DCMD_LENGTH; - req->req.actual = req->req.length - (tmp & DCMD_LENGTH); - - /* the last tx packet may be incomplete, so flush the fifo. - * FIXME correct req.actual if we can - */ - if (ep->bEndpointAddress & USB_DIR_IN) - *ep->reg_udccs = UDCCS_BI_FTF; -} - -/* dma channel stopped ... normal tx end (IN), or on error (IN/OUT) */ -static void dma_nodesc_handler(int dmach, void *_ep) -{ - struct pxa2xx_ep *ep = _ep; - struct pxa2xx_request *req; - u32 tmp, completed; - - local_irq_disable(); - - req = list_entry(ep->queue.next, struct pxa2xx_request, queue); - - ep->dma_irqs++; - ep->dev->stats.irqs++; - HEX_DISPLAY(ep->dev->stats.irqs); - - /* ack/clear */ - tmp = DCSR(ep->dma); - DCSR(ep->dma) = tmp; - if ((tmp & DCSR_STOPSTATE) == 0 - || (DDADR(ep->dma) & DDADR_STOP) != 0) { - DBG(DBG_VERBOSE, "%s, dcsr %08x ddadr %08x\n", - ep->ep.name, DCSR(ep->dma), DDADR(ep->dma)); - goto done; - } - DCSR(ep->dma) = 0; /* clear DCSR_STOPSTATE */ - - /* update transfer status */ - completed = tmp & DCSR_BUSERR; - if (ep->bEndpointAddress & USB_DIR_IN) - tmp = DSADR(ep->dma); - else - tmp = DTADR(ep->dma); - req->req.actual = tmp - req->req.dma; - - /* FIXME seems we sometimes see partial transfers... */ - - if (unlikely(completed != 0)) - req->req.status = -EIO; - else if (req->req.actual) { - /* these registers have zeroes in low bits; they miscount - * some (end-of-transfer) short packets: tx 14 as tx 12 - */ - if (ep->dma_fixup) - req->req.actual = min(req->req.actual + 3, - req->req.length); - - tmp = (req->req.length - req->req.actual); - completed = (tmp == 0); - if (completed && (ep->bEndpointAddress & USB_DIR_IN)) { - - /* maybe validate final short packet ... */ - if ((req->req.actual % ep->ep.maxpacket) != 0) - *ep->reg_udccs = UDCCS_BI_TSP/*|UDCCS_BI_TPC*/; - - /* ... or zlp, using pio fallback */ - else if (ep->bmAttributes == USB_ENDPOINT_XFER_BULK - && req->req.zero) { - DMSG("%s zlp terminate ...\n", ep->ep.name); - completed = 0; - } - } - } - - if (likely(completed)) { - done(ep, req, 0); - - /* maybe re-activate after completion */ - if (ep->stopped || list_empty(&ep->queue)) - goto done; - req = list_entry(ep->queue.next, struct pxa2xx_request, queue); - } - kick_dma(ep, req); -done: - local_irq_enable(); -} - -#endif - /*-------------------------------------------------------------------------*/ static int @@ -942,19 +665,8 @@ pxa2xx_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) (ep->desc->wMaxPacketSize))) return -EMSGSIZE; -#ifdef USE_DMA - // FIXME caller may already have done the dma mapping - if (ep->dma >= 0) { - _req->dma = dma_map_single(dev->dev, - _req->buf, _req->length, - ((ep->bEndpointAddress & USB_DIR_IN) != 0) - ? DMA_TO_DEVICE - : DMA_FROM_DEVICE); - } -#endif - DBG(DBG_NOISY, "%s queue req %p, len %d buf %p\n", - _ep->name, _req, _req->length, _req->buf); + _ep->name, _req, _req->length, _req->buf); local_irq_save(flags); @@ -1002,11 +714,6 @@ pxa2xx_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) local_irq_restore (flags); return -EL2HLT; } -#ifdef USE_DMA - /* either start dma or prime pio pump */ - } else if (ep->dma >= 0) { - kick_dma(ep, req); -#endif /* can the FIFO can satisfy the request immediately? */ } else if ((ep->bEndpointAddress & USB_DIR_IN) != 0) { if ((*ep->reg_udccs & UDCCS_BI_TFS) != 0 @@ -1017,7 +724,7 @@ pxa2xx_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) req = NULL; } - if (likely (req && ep->desc) && ep->dma < 0) + if (likely (req && ep->desc)) pio_irq_enable(ep->bEndpointAddress); } @@ -1038,10 +745,6 @@ static void nuke(struct pxa2xx_ep *ep, int status) struct pxa2xx_request *req; /* called with irqs blocked */ -#ifdef USE_DMA - if (ep->dma >= 0 && !ep->stopped) - cancel_dma(ep); -#endif while (!list_empty(&ep->queue)) { req = list_entry(ep->queue.next, struct pxa2xx_request, @@ -1076,19 +779,7 @@ static int pxa2xx_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req) return -EINVAL; } -#ifdef USE_DMA - if (ep->dma >= 0 && ep->queue.next == &req->queue && !ep->stopped) { - cancel_dma(ep); - done(ep, req, -ECONNRESET); - /* restart i/o */ - if (!list_empty(&ep->queue)) { - req = list_entry(ep->queue.next, - struct pxa2xx_request, queue); - kick_dma(ep, req); - } - } else -#endif - done(ep, req, -ECONNRESET); + done(ep, req, -ECONNRESET); local_irq_restore(flags); return 0; @@ -1203,9 +894,6 @@ static struct usb_ep_ops pxa2xx_ep_ops = { .alloc_request = pxa2xx_ep_alloc_request, .free_request = pxa2xx_ep_free_request, - .alloc_buffer = pxa2xx_ep_alloc_buffer, - .free_buffer = pxa2xx_ep_free_buffer, - .queue = pxa2xx_ep_queue, .dequeue = pxa2xx_ep_dequeue, @@ -1279,7 +967,7 @@ static int pxa2xx_udc_pullup(struct usb_gadget *_gadget, int is_active) udc = container_of(_gadget, struct pxa2xx_udc, gadget); /* not all boards support pullup control */ - if (!udc->mach->udc_command) + if (!udc->mach->gpio_pullup && !udc->mach->udc_command) return -EOPNOTSUPP; is_active = (is_active != 0); @@ -1325,7 +1013,7 @@ udc_proc_read(char *page, char **start, off_t off, int count, /* basic device status */ t = scnprintf(next, size, DRIVER_DESC "\n" "%s version: %s\nGadget driver: %s\nHost %s\n\n", - driver_name, DRIVER_VERSION SIZE_STR DMASTR, + driver_name, DRIVER_VERSION SIZE_STR "(pio)", dev->driver ? dev->driver->driver.name : "(none)", is_vbus_present() ? "full speed" : "disconnected"); size -= t; @@ -1390,7 +1078,6 @@ udc_proc_read(char *page, char **start, off_t off, int count, for (i = 0; i < PXA_UDC_NUM_ENDPOINTS; i++) { struct pxa2xx_ep *ep = &dev->ep [i]; struct pxa2xx_request *req; - int t; if (i != 0) { const struct usb_endpoint_descriptor *d; @@ -1400,10 +1087,9 @@ udc_proc_read(char *page, char **start, off_t off, int count, continue; tmp = *dev->ep [i].reg_udccs; t = scnprintf(next, size, - "%s max %d %s udccs %02x irqs %lu/%lu\n", + "%s max %d %s udccs %02x irqs %lu\n", ep->ep.name, le16_to_cpu (d->wMaxPacketSize), - (ep->dma >= 0) ? "dma" : "pio", tmp, - ep->pio_irqs, ep->dma_irqs); + "pio", tmp, ep->pio_irqs); /* TODO translate all five groups of udccs bits! */ } else /* ep0 should only have one transfer queued */ @@ -1423,19 +1109,7 @@ udc_proc_read(char *page, char **start, off_t off, int count, continue; } list_for_each_entry(req, &ep->queue, queue) { -#ifdef USE_DMA - if (ep->dma >= 0 && req->queue.prev == &ep->queue) - t = scnprintf(next, size, - "\treq %p len %d/%d " - "buf %p (dma%d dcmd %08x)\n", - &req->req, req->req.actual, - req->req.length, req->req.buf, - ep->dma, DCMD(ep->dma) - // low 13 bits == bytes-to-go - ); - else -#endif - t = scnprintf(next, size, + t = scnprintf(next, size, "\treq %p len %d/%d buf %p\n", &req->req, req->req.actual, req->req.length, req->req.buf); @@ -1488,7 +1162,6 @@ static void udc_disable(struct pxa2xx_udc *dev) ep0_idle (dev); dev->gadget.speed = USB_SPEED_UNKNOWN; - LED_CONNECTED_OFF; } @@ -1514,7 +1187,7 @@ static void udc_reinit(struct pxa2xx_udc *dev) ep->desc = NULL; ep->stopped = 0; INIT_LIST_HEAD (&ep->queue); - ep->pio_irqs = ep->dma_irqs = 0; + ep->pio_irqs = 0; } /* the rest was statically initialized, and is read-only */ @@ -1566,23 +1239,6 @@ static void udc_enable (struct pxa2xx_udc *dev) UDC_RES2 = 0x00; } -#ifdef DISABLE_TEST_MODE - /* "test mode" seems to have become the default in later chip - * revs, preventing double buffering (and invalidating docs). - * this EXPERIMENT enables it for bulk endpoints by tweaking - * undefined/reserved register bits (that other drivers clear). - * Belcarra code comments noted this usage. - */ - if (fifo_mode & 1) { /* IN endpoints */ - UDC_RES1 |= USIR0_IR1|USIR0_IR6; - UDC_RES2 |= USIR1_IR11; - } - if (fifo_mode & 2) { /* OUT endpoints */ - UDC_RES1 |= USIR0_IR2|USIR0_IR7; - UDC_RES2 |= USIR1_IR12; - } -#endif - /* enable suspend/resume and reset irqs */ udc_clear_mask_UDCCR(UDCCR_SRM | UDCCR_REM); @@ -1666,7 +1322,6 @@ stop_activity(struct pxa2xx_udc *dev, struct usb_gadget_driver *driver) del_timer_sync(&dev->timer); /* report disconnect; the driver is already quiesced */ - LED_CONNECTED_OFF; if (driver) driver->disconnect(&dev->gadget); @@ -1715,16 +1370,13 @@ lubbock_vbus_irq(int irq, void *_dev) int vbus; dev->stats.irqs++; - HEX_DISPLAY(dev->stats.irqs); switch (irq) { case LUBBOCK_USB_IRQ: - LED_CONNECTED_ON; vbus = 1; disable_irq(LUBBOCK_USB_IRQ); enable_irq(LUBBOCK_USB_DISC_IRQ); break; case LUBBOCK_USB_DISC_IRQ: - LED_CONNECTED_OFF; vbus = 0; disable_irq(LUBBOCK_USB_DISC_IRQ); enable_irq(LUBBOCK_USB_IRQ); @@ -1742,7 +1394,7 @@ lubbock_vbus_irq(int irq, void *_dev) static irqreturn_t udc_vbus_irq(int irq, void *_dev) { struct pxa2xx_udc *dev = _dev; - int vbus = udc_gpio_get(dev->mach->gpio_vbus); + int vbus = gpio_get_value(dev->mach->gpio_vbus); pxa2xx_udc_vbus_session(&dev->gadget, vbus); return IRQ_HANDLED; @@ -2040,18 +1692,6 @@ static void handle_ep(struct pxa2xx_ep *ep) /* fifos can hold packets, ready for reading... */ if (likely(req)) { -#ifdef USE_OUT_DMA -// TODO didn't yet debug out-dma. this approach assumes -// the worst about short packets and RPC; it might be better. - - if (likely(ep->dma >= 0)) { - if (!(udccs & UDCCS_BO_RSP)) { - *ep->reg_udccs = UDCCS_BO_RPC; - ep->dma_irqs++; - return; - } - } -#endif completed = read_fifo(ep, req); } else pio_irq_disable (ep->bEndpointAddress); @@ -2074,7 +1714,6 @@ pxa2xx_udc_irq(int irq, void *_dev) int handled; dev->stats.irqs++; - HEX_DISPLAY(dev->stats.irqs); do { u32 udccr = UDCCR; @@ -2125,7 +1764,6 @@ pxa2xx_udc_irq(int irq, void *_dev) } else { DBG(DBG_VERBOSE, "USB reset end\n"); dev->gadget.speed = USB_SPEED_FULL; - LED_CONNECTED_ON; memset(&dev->stats, 0, sizeof dev->stats); /* driver and endpoints are still reset */ } @@ -2217,7 +1855,6 @@ static struct pxa2xx_udc memory = { .bmAttributes = USB_ENDPOINT_XFER_BULK, .reg_udccs = &UDCCS1, .reg_uddr = &UDDR1, - drcmr (25) }, .ep[2] = { .ep = { @@ -2232,7 +1869,6 @@ static struct pxa2xx_udc memory = { .reg_udccs = &UDCCS2, .reg_ubcr = &UBCR2, .reg_uddr = &UDDR2, - drcmr (26) }, #ifndef CONFIG_USB_PXA2XX_SMALL .ep[3] = { @@ -2247,7 +1883,6 @@ static struct pxa2xx_udc memory = { .bmAttributes = USB_ENDPOINT_XFER_ISOC, .reg_udccs = &UDCCS3, .reg_uddr = &UDDR3, - drcmr (27) }, .ep[4] = { .ep = { @@ -2262,7 +1897,6 @@ static struct pxa2xx_udc memory = { .reg_udccs = &UDCCS4, .reg_ubcr = &UBCR4, .reg_uddr = &UDDR4, - drcmr (28) }, .ep[5] = { .ep = { @@ -2291,7 +1925,6 @@ static struct pxa2xx_udc memory = { .bmAttributes = USB_ENDPOINT_XFER_BULK, .reg_udccs = &UDCCS6, .reg_uddr = &UDDR6, - drcmr (30) }, .ep[7] = { .ep = { @@ -2306,7 +1939,6 @@ static struct pxa2xx_udc memory = { .reg_udccs = &UDCCS7, .reg_ubcr = &UBCR7, .reg_uddr = &UDDR7, - drcmr (31) }, .ep[8] = { .ep = { @@ -2320,7 +1952,6 @@ static struct pxa2xx_udc memory = { .bmAttributes = USB_ENDPOINT_XFER_ISOC, .reg_udccs = &UDCCS8, .reg_uddr = &UDDR8, - drcmr (32) }, .ep[9] = { .ep = { @@ -2335,7 +1966,6 @@ static struct pxa2xx_udc memory = { .reg_udccs = &UDCCS9, .reg_ubcr = &UBCR9, .reg_uddr = &UDDR9, - drcmr (33) }, .ep[10] = { .ep = { @@ -2364,7 +1994,6 @@ static struct pxa2xx_udc memory = { .bmAttributes = USB_ENDPOINT_XFER_BULK, .reg_udccs = &UDCCS11, .reg_uddr = &UDDR11, - drcmr (35) }, .ep[12] = { .ep = { @@ -2379,7 +2008,6 @@ static struct pxa2xx_udc memory = { .reg_udccs = &UDCCS12, .reg_ubcr = &UBCR12, .reg_uddr = &UDDR12, - drcmr (36) }, .ep[13] = { .ep = { @@ -2393,7 +2021,6 @@ static struct pxa2xx_udc memory = { .bmAttributes = USB_ENDPOINT_XFER_ISOC, .reg_udccs = &UDCCS13, .reg_uddr = &UDDR13, - drcmr (37) }, .ep[14] = { .ep = { @@ -2408,7 +2035,6 @@ static struct pxa2xx_udc memory = { .reg_udccs = &UDCCS14, .reg_ubcr = &UBCR14, .reg_uddr = &UDDR14, - drcmr (38) }, .ep[15] = { .ep = { @@ -2466,7 +2092,7 @@ static struct pxa2xx_udc memory = { static int __init pxa2xx_udc_probe(struct platform_device *pdev) { struct pxa2xx_udc *dev = &memory; - int retval, out_dma = 1, vbus_irq, irq; + int retval, vbus_irq, irq; u32 chiprev; /* insist on Intel/ARM/XScale */ @@ -2489,7 +2115,7 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev) case PXA250_B2: case PXA210_B2: case PXA250_B1: case PXA210_B1: case PXA250_B0: case PXA210_B0: - out_dma = 0; + /* OUT-DMA is broken ... */ /* fall through */ case PXA250_C0: case PXA210_C0: break; @@ -2498,11 +2124,9 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev) case IXP425_B0: case IXP465_AD: dev->has_cfr = 1; - out_dma = 0; break; #endif default: - out_dma = 0; printk(KERN_ERR "%s: unrecognized processor: %08x\n", driver_name, chiprev); /* iop3xx, ixp4xx, ... */ @@ -2513,36 +2137,41 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev) if (irq < 0) return -ENODEV; - pr_debug("%s: IRQ %d%s%s%s\n", driver_name, irq, + pr_debug("%s: IRQ %d%s%s\n", driver_name, irq, dev->has_cfr ? "" : " (!cfr)", - out_dma ? "" : " (broken dma-out)", - SIZE_STR DMASTR + SIZE_STR "(pio)" ); -#ifdef USE_DMA -#ifndef USE_OUT_DMA - out_dma = 0; -#endif - /* pxa 250 erratum 130 prevents using OUT dma (fixed C0) */ - if (!out_dma) { - DMSG("disabled OUT dma\n"); - dev->ep[ 2].reg_drcmr = dev->ep[ 4].reg_drcmr = 0; - dev->ep[ 7].reg_drcmr = dev->ep[ 9].reg_drcmr = 0; - dev->ep[12].reg_drcmr = dev->ep[14].reg_drcmr = 0; - } -#endif - /* other non-static parts of init */ dev->dev = &pdev->dev; dev->mach = pdev->dev.platform_data; + if (dev->mach->gpio_vbus) { - udc_gpio_init_vbus(dev->mach->gpio_vbus); - vbus_irq = udc_gpio_to_irq(dev->mach->gpio_vbus); + if ((retval = gpio_request(dev->mach->gpio_vbus, + "pxa2xx_udc GPIO VBUS"))) { + dev_dbg(&pdev->dev, + "can't get vbus gpio %d, err: %d\n", + dev->mach->gpio_vbus, retval); + return -EBUSY; + } + gpio_direction_input(dev->mach->gpio_vbus); + vbus_irq = gpio_to_irq(dev->mach->gpio_vbus); set_irq_type(vbus_irq, IRQT_BOTHEDGE); } else vbus_irq = 0; - if (dev->mach->gpio_pullup) - udc_gpio_init_pullup(dev->mach->gpio_pullup); + + if (dev->mach->gpio_pullup) { + if ((retval = gpio_request(dev->mach->gpio_pullup, + "pca2xx_udc GPIO PULLUP"))) { + dev_dbg(&pdev->dev, + "can't get pullup gpio %d, err: %d\n", + dev->mach->gpio_pullup, retval); + if (dev->mach->gpio_vbus) + gpio_free(dev->mach->gpio_vbus); + return -EBUSY; + } + gpio_direction_output(dev->mach->gpio_pullup, 0); + } init_timer(&dev->timer); dev->timer.function = udc_watchdog; @@ -2566,6 +2195,10 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev) if (retval != 0) { printk(KERN_ERR "%s: can't get irq %d, err %d\n", driver_name, irq, retval); + if (dev->mach->gpio_pullup) + gpio_free(dev->mach->gpio_pullup); + if (dev->mach->gpio_vbus) + gpio_free(dev->mach->gpio_vbus); return -EBUSY; } dev->got_irq = 1; @@ -2581,6 +2214,10 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev) driver_name, LUBBOCK_USB_DISC_IRQ, retval); lubbock_fail0: free_irq(irq, dev); + if (dev->mach->gpio_pullup) + gpio_free(dev->mach->gpio_pullup); + if (dev->mach->gpio_vbus) + gpio_free(dev->mach->gpio_vbus); return -EBUSY; } retval = request_irq(LUBBOCK_USB_IRQ, @@ -2593,11 +2230,6 @@ lubbock_fail0: free_irq(LUBBOCK_USB_DISC_IRQ, dev); goto lubbock_fail0; } -#ifdef DEBUG - /* with U-Boot (but not BLOB), hex is off by default */ - HEX_DISPLAY(dev->stats.irqs); - LUB_DISC_BLNK_LED &= 0xff; -#endif } else #endif if (vbus_irq) { @@ -2608,6 +2240,10 @@ lubbock_fail0: printk(KERN_ERR "%s: can't get irq %i, err %d\n", driver_name, vbus_irq, retval); free_irq(irq, dev); + if (dev->mach->gpio_pullup) + gpio_free(dev->mach->gpio_pullup); + if (dev->mach->gpio_vbus) + gpio_free(dev->mach->gpio_vbus); return -EBUSY; } } @@ -2641,8 +2277,13 @@ static int __exit pxa2xx_udc_remove(struct platform_device *pdev) free_irq(LUBBOCK_USB_IRQ, dev); } #endif - if (dev->mach->gpio_vbus) - free_irq(IRQ_GPIO(dev->mach->gpio_vbus), dev); + if (dev->mach->gpio_vbus) { + free_irq(gpio_to_irq(dev->mach->gpio_vbus), dev); + gpio_free(dev->mach->gpio_vbus); + } + if (dev->mach->gpio_pullup) + gpio_free(dev->mach->gpio_pullup); + platform_set_drvdata(pdev, NULL); the_controller = NULL; return 0; @@ -2668,7 +2309,7 @@ static int pxa2xx_udc_suspend(struct platform_device *dev, pm_message_t state) { struct pxa2xx_udc *udc = platform_get_drvdata(dev); - if (!udc->mach->udc_command) + if (!udc->mach->gpio_pullup && !udc->mach->udc_command) WARN("USB host won't detect disconnect!\n"); pullup(udc, 0); diff --git a/drivers/usb/gadget/pxa2xx_udc.h b/drivers/usb/gadget/pxa2xx_udc.h index 773e549aff3f..0e5d0e6fb0e2 100644 --- a/drivers/usb/gadget/pxa2xx_udc.h +++ b/drivers/usb/gadget/pxa2xx_udc.h @@ -54,8 +54,6 @@ struct pxa2xx_ep { const struct usb_endpoint_descriptor *desc; struct list_head queue; unsigned long pio_irqs; - unsigned long dma_irqs; - short dma; unsigned short fifo_size; u8 bEndpointAddress; @@ -63,7 +61,7 @@ struct pxa2xx_ep { unsigned stopped : 1; unsigned dma_fixup : 1; - + /* UDCCS = UDC Control/Status for this EP * UBCR = UDC Byte Count Remaining (contents of OUT fifo) * UDDR = UDC Endpoint Data Register (the fifo) @@ -72,12 +70,6 @@ struct pxa2xx_ep { volatile u32 *reg_udccs; volatile u32 *reg_ubcr; volatile u32 *reg_uddr; -#ifdef USE_DMA - volatile u32 *reg_drcmr; -#define drcmr(n) .reg_drcmr = & DRCMR ## n , -#else -#define drcmr(n) -#endif }; struct pxa2xx_request { @@ -85,7 +77,7 @@ struct pxa2xx_request { struct list_head queue; }; -enum ep0_state { +enum ep0_state { EP0_IDLE, EP0_IN_DATA_PHASE, EP0_OUT_DATA_PHASE, @@ -108,7 +100,6 @@ struct udc_stats { #ifdef CONFIG_USB_PXA2XX_SMALL /* when memory's tight, SMALL config saves code+data. */ -#undef USE_DMA #define PXA_UDC_NUM_ENDPOINTS 3 #endif @@ -144,37 +135,8 @@ struct pxa2xx_udc { #ifdef CONFIG_ARCH_LUBBOCK #include <asm/arch/lubbock.h> /* lubbock can also report usb connect/disconnect irqs */ - -#ifdef DEBUG -#define HEX_DISPLAY(n) if (machine_is_lubbock()) { LUB_HEXLED = (n); } #endif -#endif - -/*-------------------------------------------------------------------------*/ - -/* LEDs are only for debug */ -#ifndef HEX_DISPLAY -#define HEX_DISPLAY(n) do {} while(0) -#endif - -#ifdef DEBUG -#include <asm/leds.h> - -#define LED_CONNECTED_ON leds_event(led_green_on) -#define LED_CONNECTED_OFF do { \ - leds_event(led_green_off); \ - HEX_DISPLAY(0); \ - } while(0) -#endif - -#ifndef LED_CONNECTED_ON -#define LED_CONNECTED_ON do {} while(0) -#define LED_CONNECTED_OFF do {} while(0) -#endif - -/*-------------------------------------------------------------------------*/ - static struct pxa2xx_udc *the_controller; /*-------------------------------------------------------------------------*/ @@ -204,7 +166,7 @@ static const char *state_name[] = { # define UDC_DEBUG DBG_NORMAL #endif -static void __attribute__ ((__unused__)) +static void __maybe_unused dump_udccr(const char *label) { u32 udccr = UDCCR; @@ -220,7 +182,7 @@ dump_udccr(const char *label) (udccr & UDCCR_UDE) ? " ude" : ""); } -static void __attribute__ ((__unused__)) +static void __maybe_unused dump_udccs0(const char *label) { u32 udccs0 = UDCCS0; @@ -237,7 +199,7 @@ dump_udccs0(const char *label) (udccs0 & UDCCS0_OPR) ? " opr" : ""); } -static void __attribute__ ((__unused__)) +static void __maybe_unused dump_state(struct pxa2xx_udc *dev) { u32 tmp; diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c index 708657c89132..db1b2bfcee4e 100644 --- a/drivers/usb/gadget/rndis.c +++ b/drivers/usb/gadget/rndis.c @@ -53,7 +53,7 @@ */ #if 0 -#define DEBUG(str,args...) do { \ +#define DBG(str,args...) do { \ if (rndis_debug) \ printk(KERN_DEBUG str , ## args ); \ } while (0) @@ -65,7 +65,7 @@ MODULE_PARM_DESC (rndis_debug, "enable debugging"); #else #define rndis_debug 0 -#define DEBUG(str,args...) do{}while(0) +#define DBG(str,args...) do{}while(0) #endif #define RNDIS_MAX_CONFIGS 1 @@ -183,9 +183,9 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, if (!resp) return -ENOMEM; if (buf_len && rndis_debug > 1) { - DEBUG("query OID %08x value, len %d:\n", OID, buf_len); + DBG("query OID %08x value, len %d:\n", OID, buf_len); for (i = 0; i < buf_len; i += 16) { - DEBUG ("%03d: %08x %08x %08x %08x\n", i, + DBG("%03d: %08x %08x %08x %08x\n", i, le32_to_cpu(get_unaligned((__le32 *) &buf[i])), le32_to_cpu(get_unaligned((__le32 *) @@ -207,7 +207,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_GEN_SUPPORTED_LIST: - DEBUG ("%s: OID_GEN_SUPPORTED_LIST\n", __FUNCTION__); + DBG("%s: OID_GEN_SUPPORTED_LIST\n", __FUNCTION__); length = sizeof (oid_supported_list); count = length / sizeof (u32); for (i = 0; i < count; i++) @@ -217,7 +217,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_GEN_HARDWARE_STATUS: - DEBUG("%s: OID_GEN_HARDWARE_STATUS\n", __FUNCTION__); + DBG("%s: OID_GEN_HARDWARE_STATUS\n", __FUNCTION__); /* Bogus question! * Hardware must be ready to receive high level protocols. * BTW: @@ -230,14 +230,14 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_GEN_MEDIA_SUPPORTED: - DEBUG("%s: OID_GEN_MEDIA_SUPPORTED\n", __FUNCTION__); + DBG("%s: OID_GEN_MEDIA_SUPPORTED\n", __FUNCTION__); *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr].medium); retval = 0; break; /* mandatory */ case OID_GEN_MEDIA_IN_USE: - DEBUG("%s: OID_GEN_MEDIA_IN_USE\n", __FUNCTION__); + DBG("%s: OID_GEN_MEDIA_IN_USE\n", __FUNCTION__); /* one medium, one transport... (maybe you do it better) */ *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr].medium); retval = 0; @@ -245,7 +245,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_GEN_MAXIMUM_FRAME_SIZE: - DEBUG("%s: OID_GEN_MAXIMUM_FRAME_SIZE\n", __FUNCTION__); + DBG("%s: OID_GEN_MAXIMUM_FRAME_SIZE\n", __FUNCTION__); if (rndis_per_dev_params [configNr].dev) { *outbuf = cpu_to_le32 ( rndis_per_dev_params [configNr].dev->mtu); @@ -256,7 +256,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_GEN_LINK_SPEED: if (rndis_debug > 1) - DEBUG("%s: OID_GEN_LINK_SPEED\n", __FUNCTION__); + DBG("%s: OID_GEN_LINK_SPEED\n", __FUNCTION__); if (rndis_per_dev_params [configNr].media_state == NDIS_MEDIA_STATE_DISCONNECTED) *outbuf = __constant_cpu_to_le32 (0); @@ -268,7 +268,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_GEN_TRANSMIT_BLOCK_SIZE: - DEBUG("%s: OID_GEN_TRANSMIT_BLOCK_SIZE\n", __FUNCTION__); + DBG("%s: OID_GEN_TRANSMIT_BLOCK_SIZE\n", __FUNCTION__); if (rndis_per_dev_params [configNr].dev) { *outbuf = cpu_to_le32 ( rndis_per_dev_params [configNr].dev->mtu); @@ -278,7 +278,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_GEN_RECEIVE_BLOCK_SIZE: - DEBUG("%s: OID_GEN_RECEIVE_BLOCK_SIZE\n", __FUNCTION__); + DBG("%s: OID_GEN_RECEIVE_BLOCK_SIZE\n", __FUNCTION__); if (rndis_per_dev_params [configNr].dev) { *outbuf = cpu_to_le32 ( rndis_per_dev_params [configNr].dev->mtu); @@ -288,7 +288,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_GEN_VENDOR_ID: - DEBUG("%s: OID_GEN_VENDOR_ID\n", __FUNCTION__); + DBG("%s: OID_GEN_VENDOR_ID\n", __FUNCTION__); *outbuf = cpu_to_le32 ( rndis_per_dev_params [configNr].vendorID); retval = 0; @@ -296,7 +296,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_GEN_VENDOR_DESCRIPTION: - DEBUG("%s: OID_GEN_VENDOR_DESCRIPTION\n", __FUNCTION__); + DBG("%s: OID_GEN_VENDOR_DESCRIPTION\n", __FUNCTION__); length = strlen (rndis_per_dev_params [configNr].vendorDescr); memcpy (outbuf, rndis_per_dev_params [configNr].vendorDescr, length); @@ -304,7 +304,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, break; case OID_GEN_VENDOR_DRIVER_VERSION: - DEBUG("%s: OID_GEN_VENDOR_DRIVER_VERSION\n", __FUNCTION__); + DBG("%s: OID_GEN_VENDOR_DRIVER_VERSION\n", __FUNCTION__); /* Created as LE */ *outbuf = rndis_driver_version; retval = 0; @@ -312,14 +312,14 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_GEN_CURRENT_PACKET_FILTER: - DEBUG("%s: OID_GEN_CURRENT_PACKET_FILTER\n", __FUNCTION__); + DBG("%s: OID_GEN_CURRENT_PACKET_FILTER\n", __FUNCTION__); *outbuf = cpu_to_le32 (*rndis_per_dev_params[configNr].filter); retval = 0; break; /* mandatory */ case OID_GEN_MAXIMUM_TOTAL_SIZE: - DEBUG("%s: OID_GEN_MAXIMUM_TOTAL_SIZE\n", __FUNCTION__); + DBG("%s: OID_GEN_MAXIMUM_TOTAL_SIZE\n", __FUNCTION__); *outbuf = __constant_cpu_to_le32(RNDIS_MAX_TOTAL_SIZE); retval = 0; break; @@ -327,14 +327,14 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_GEN_MEDIA_CONNECT_STATUS: if (rndis_debug > 1) - DEBUG("%s: OID_GEN_MEDIA_CONNECT_STATUS\n", __FUNCTION__); + DBG("%s: OID_GEN_MEDIA_CONNECT_STATUS\n", __FUNCTION__); *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr] .media_state); retval = 0; break; case OID_GEN_PHYSICAL_MEDIUM: - DEBUG("%s: OID_GEN_PHYSICAL_MEDIUM\n", __FUNCTION__); + DBG("%s: OID_GEN_PHYSICAL_MEDIUM\n", __FUNCTION__); *outbuf = __constant_cpu_to_le32 (0); retval = 0; break; @@ -344,7 +344,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, * versions emit undefined RNDIS messages. DOCUMENT ALL THESE! */ case OID_GEN_MAC_OPTIONS: /* from WinME */ - DEBUG("%s: OID_GEN_MAC_OPTIONS\n", __FUNCTION__); + DBG("%s: OID_GEN_MAC_OPTIONS\n", __FUNCTION__); *outbuf = __constant_cpu_to_le32( NDIS_MAC_OPTION_RECEIVE_SERIALIZED | NDIS_MAC_OPTION_FULL_DUPLEX); @@ -356,7 +356,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_GEN_XMIT_OK: if (rndis_debug > 1) - DEBUG("%s: OID_GEN_XMIT_OK\n", __FUNCTION__); + DBG("%s: OID_GEN_XMIT_OK\n", __FUNCTION__); if (rndis_per_dev_params [configNr].stats) { *outbuf = cpu_to_le32 ( rndis_per_dev_params [configNr].stats->tx_packets - @@ -369,7 +369,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_GEN_RCV_OK: if (rndis_debug > 1) - DEBUG("%s: OID_GEN_RCV_OK\n", __FUNCTION__); + DBG("%s: OID_GEN_RCV_OK\n", __FUNCTION__); if (rndis_per_dev_params [configNr].stats) { *outbuf = cpu_to_le32 ( rndis_per_dev_params [configNr].stats->rx_packets - @@ -382,7 +382,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_GEN_XMIT_ERROR: if (rndis_debug > 1) - DEBUG("%s: OID_GEN_XMIT_ERROR\n", __FUNCTION__); + DBG("%s: OID_GEN_XMIT_ERROR\n", __FUNCTION__); if (rndis_per_dev_params [configNr].stats) { *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr] .stats->tx_errors); @@ -393,7 +393,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_GEN_RCV_ERROR: if (rndis_debug > 1) - DEBUG("%s: OID_GEN_RCV_ERROR\n", __FUNCTION__); + DBG("%s: OID_GEN_RCV_ERROR\n", __FUNCTION__); if (rndis_per_dev_params [configNr].stats) { *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr] .stats->rx_errors); @@ -403,7 +403,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_GEN_RCV_NO_BUFFER: - DEBUG("%s: OID_GEN_RCV_NO_BUFFER\n", __FUNCTION__); + DBG("%s: OID_GEN_RCV_NO_BUFFER\n", __FUNCTION__); if (rndis_per_dev_params [configNr].stats) { *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr] .stats->rx_dropped); @@ -413,7 +413,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, #ifdef RNDIS_OPTIONAL_STATS case OID_GEN_DIRECTED_BYTES_XMIT: - DEBUG("%s: OID_GEN_DIRECTED_BYTES_XMIT\n", __FUNCTION__); + DBG("%s: OID_GEN_DIRECTED_BYTES_XMIT\n", __FUNCTION__); /* * Aunt Tilly's size of shoes * minus antarctica count of penguins @@ -433,7 +433,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, break; case OID_GEN_DIRECTED_FRAMES_XMIT: - DEBUG("%s: OID_GEN_DIRECTED_FRAMES_XMIT\n", __FUNCTION__); + DBG("%s: OID_GEN_DIRECTED_FRAMES_XMIT\n", __FUNCTION__); /* dito */ if (rndis_per_dev_params [configNr].stats) { *outbuf = cpu_to_le32 ( @@ -449,7 +449,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, break; case OID_GEN_MULTICAST_BYTES_XMIT: - DEBUG("%s: OID_GEN_MULTICAST_BYTES_XMIT\n", __FUNCTION__); + DBG("%s: OID_GEN_MULTICAST_BYTES_XMIT\n", __FUNCTION__); if (rndis_per_dev_params [configNr].stats) { *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr] .stats->multicast*1234); @@ -458,7 +458,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, break; case OID_GEN_MULTICAST_FRAMES_XMIT: - DEBUG("%s: OID_GEN_MULTICAST_FRAMES_XMIT\n", __FUNCTION__); + DBG("%s: OID_GEN_MULTICAST_FRAMES_XMIT\n", __FUNCTION__); if (rndis_per_dev_params [configNr].stats) { *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr] .stats->multicast); @@ -467,7 +467,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, break; case OID_GEN_BROADCAST_BYTES_XMIT: - DEBUG("%s: OID_GEN_BROADCAST_BYTES_XMIT\n", __FUNCTION__); + DBG("%s: OID_GEN_BROADCAST_BYTES_XMIT\n", __FUNCTION__); if (rndis_per_dev_params [configNr].stats) { *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr] .stats->tx_packets/42*255); @@ -476,7 +476,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, break; case OID_GEN_BROADCAST_FRAMES_XMIT: - DEBUG("%s: OID_GEN_BROADCAST_FRAMES_XMIT\n", __FUNCTION__); + DBG("%s: OID_GEN_BROADCAST_FRAMES_XMIT\n", __FUNCTION__); if (rndis_per_dev_params [configNr].stats) { *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr] .stats->tx_packets/42); @@ -485,19 +485,19 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, break; case OID_GEN_DIRECTED_BYTES_RCV: - DEBUG("%s: OID_GEN_DIRECTED_BYTES_RCV\n", __FUNCTION__); + DBG("%s: OID_GEN_DIRECTED_BYTES_RCV\n", __FUNCTION__); *outbuf = __constant_cpu_to_le32 (0); retval = 0; break; case OID_GEN_DIRECTED_FRAMES_RCV: - DEBUG("%s: OID_GEN_DIRECTED_FRAMES_RCV\n", __FUNCTION__); + DBG("%s: OID_GEN_DIRECTED_FRAMES_RCV\n", __FUNCTION__); *outbuf = __constant_cpu_to_le32 (0); retval = 0; break; case OID_GEN_MULTICAST_BYTES_RCV: - DEBUG("%s: OID_GEN_MULTICAST_BYTES_RCV\n", __FUNCTION__); + DBG("%s: OID_GEN_MULTICAST_BYTES_RCV\n", __FUNCTION__); if (rndis_per_dev_params [configNr].stats) { *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr] .stats->multicast * 1111); @@ -506,7 +506,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, break; case OID_GEN_MULTICAST_FRAMES_RCV: - DEBUG("%s: OID_GEN_MULTICAST_FRAMES_RCV\n", __FUNCTION__); + DBG("%s: OID_GEN_MULTICAST_FRAMES_RCV\n", __FUNCTION__); if (rndis_per_dev_params [configNr].stats) { *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr] .stats->multicast); @@ -515,7 +515,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, break; case OID_GEN_BROADCAST_BYTES_RCV: - DEBUG("%s: OID_GEN_BROADCAST_BYTES_RCV\n", __FUNCTION__); + DBG("%s: OID_GEN_BROADCAST_BYTES_RCV\n", __FUNCTION__); if (rndis_per_dev_params [configNr].stats) { *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr] .stats->rx_packets/42*255); @@ -524,7 +524,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, break; case OID_GEN_BROADCAST_FRAMES_RCV: - DEBUG("%s: OID_GEN_BROADCAST_FRAMES_RCV\n", __FUNCTION__); + DBG("%s: OID_GEN_BROADCAST_FRAMES_RCV\n", __FUNCTION__); if (rndis_per_dev_params [configNr].stats) { *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr] .stats->rx_packets/42); @@ -533,7 +533,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, break; case OID_GEN_RCV_CRC_ERROR: - DEBUG("%s: OID_GEN_RCV_CRC_ERROR\n", __FUNCTION__); + DBG("%s: OID_GEN_RCV_CRC_ERROR\n", __FUNCTION__); if (rndis_per_dev_params [configNr].stats) { *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr] .stats->rx_crc_errors); @@ -542,7 +542,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, break; case OID_GEN_TRANSMIT_QUEUE_LENGTH: - DEBUG("%s: OID_GEN_TRANSMIT_QUEUE_LENGTH\n", __FUNCTION__); + DBG("%s: OID_GEN_TRANSMIT_QUEUE_LENGTH\n", __FUNCTION__); *outbuf = __constant_cpu_to_le32 (0); retval = 0; break; @@ -552,7 +552,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_802_3_PERMANENT_ADDRESS: - DEBUG("%s: OID_802_3_PERMANENT_ADDRESS\n", __FUNCTION__); + DBG("%s: OID_802_3_PERMANENT_ADDRESS\n", __FUNCTION__); if (rndis_per_dev_params [configNr].dev) { length = ETH_ALEN; memcpy (outbuf, @@ -564,7 +564,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_802_3_CURRENT_ADDRESS: - DEBUG("%s: OID_802_3_CURRENT_ADDRESS\n", __FUNCTION__); + DBG("%s: OID_802_3_CURRENT_ADDRESS\n", __FUNCTION__); if (rndis_per_dev_params [configNr].dev) { length = ETH_ALEN; memcpy (outbuf, @@ -576,7 +576,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_802_3_MULTICAST_LIST: - DEBUG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__); + DBG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__); /* Multicast base address only */ *outbuf = __constant_cpu_to_le32 (0xE0000000); retval = 0; @@ -584,21 +584,21 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_802_3_MAXIMUM_LIST_SIZE: - DEBUG("%s: OID_802_3_MAXIMUM_LIST_SIZE\n", __FUNCTION__); + DBG("%s: OID_802_3_MAXIMUM_LIST_SIZE\n", __FUNCTION__); /* Multicast base address only */ *outbuf = __constant_cpu_to_le32 (1); retval = 0; break; case OID_802_3_MAC_OPTIONS: - DEBUG("%s: OID_802_3_MAC_OPTIONS\n", __FUNCTION__); + DBG("%s: OID_802_3_MAC_OPTIONS\n", __FUNCTION__); break; /* ieee802.3 statistics OIDs (table 4-4) */ /* mandatory */ case OID_802_3_RCV_ERROR_ALIGNMENT: - DEBUG("%s: OID_802_3_RCV_ERROR_ALIGNMENT\n", __FUNCTION__); + DBG("%s: OID_802_3_RCV_ERROR_ALIGNMENT\n", __FUNCTION__); if (rndis_per_dev_params [configNr].stats) { *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr] .stats->rx_frame_errors); @@ -608,51 +608,51 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, /* mandatory */ case OID_802_3_XMIT_ONE_COLLISION: - DEBUG("%s: OID_802_3_XMIT_ONE_COLLISION\n", __FUNCTION__); + DBG("%s: OID_802_3_XMIT_ONE_COLLISION\n", __FUNCTION__); *outbuf = __constant_cpu_to_le32 (0); retval = 0; break; /* mandatory */ case OID_802_3_XMIT_MORE_COLLISIONS: - DEBUG("%s: OID_802_3_XMIT_MORE_COLLISIONS\n", __FUNCTION__); + DBG("%s: OID_802_3_XMIT_MORE_COLLISIONS\n", __FUNCTION__); *outbuf = __constant_cpu_to_le32 (0); retval = 0; break; #ifdef RNDIS_OPTIONAL_STATS case OID_802_3_XMIT_DEFERRED: - DEBUG("%s: OID_802_3_XMIT_DEFERRED\n", __FUNCTION__); + DBG("%s: OID_802_3_XMIT_DEFERRED\n", __FUNCTION__); /* TODO */ break; case OID_802_3_XMIT_MAX_COLLISIONS: - DEBUG("%s: OID_802_3_XMIT_MAX_COLLISIONS\n", __FUNCTION__); + DBG("%s: OID_802_3_XMIT_MAX_COLLISIONS\n", __FUNCTION__); /* TODO */ break; case OID_802_3_RCV_OVERRUN: - DEBUG("%s: OID_802_3_RCV_OVERRUN\n", __FUNCTION__); + DBG("%s: OID_802_3_RCV_OVERRUN\n", __FUNCTION__); /* TODO */ break; case OID_802_3_XMIT_UNDERRUN: - DEBUG("%s: OID_802_3_XMIT_UNDERRUN\n", __FUNCTION__); + DBG("%s: OID_802_3_XMIT_UNDERRUN\n", __FUNCTION__); /* TODO */ break; case OID_802_3_XMIT_HEARTBEAT_FAILURE: - DEBUG("%s: OID_802_3_XMIT_HEARTBEAT_FAILURE\n", __FUNCTION__); + DBG("%s: OID_802_3_XMIT_HEARTBEAT_FAILURE\n", __FUNCTION__); /* TODO */ break; case OID_802_3_XMIT_TIMES_CRS_LOST: - DEBUG("%s: OID_802_3_XMIT_TIMES_CRS_LOST\n", __FUNCTION__); + DBG("%s: OID_802_3_XMIT_TIMES_CRS_LOST\n", __FUNCTION__); /* TODO */ break; case OID_802_3_XMIT_LATE_COLLISIONS: - DEBUG("%s: OID_802_3_XMIT_LATE_COLLISIONS\n", __FUNCTION__); + DBG("%s: OID_802_3_XMIT_LATE_COLLISIONS\n", __FUNCTION__); /* TODO */ break; #endif /* RNDIS_OPTIONAL_STATS */ @@ -660,7 +660,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, #ifdef RNDIS_PM /* power management OIDs (table 4-5) */ case OID_PNP_CAPABILITIES: - DEBUG("%s: OID_PNP_CAPABILITIES\n", __FUNCTION__); + DBG("%s: OID_PNP_CAPABILITIES\n", __FUNCTION__); /* for now, no wakeup capabilities */ length = sizeof (struct NDIS_PNP_CAPABILITIES); @@ -668,7 +668,7 @@ gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len, retval = 0; break; case OID_PNP_QUERY_POWER: - DEBUG("%s: OID_PNP_QUERY_POWER D%d\n", __FUNCTION__, + DBG("%s: OID_PNP_QUERY_POWER D%d\n", __FUNCTION__, le32_to_cpu(get_unaligned((__le32 *)buf)) - 1); /* only suspend is a real power state, and * it can't be entered by OID_PNP_SET_POWER... @@ -705,9 +705,9 @@ static int gen_ndis_set_resp (u8 configNr, u32 OID, u8 *buf, u32 buf_len, return -ENOMEM; if (buf_len && rndis_debug > 1) { - DEBUG("set OID %08x value, len %d:\n", OID, buf_len); + DBG("set OID %08x value, len %d:\n", OID, buf_len); for (i = 0; i < buf_len; i += 16) { - DEBUG ("%03d: %08x %08x %08x %08x\n", i, + DBG("%03d: %08x %08x %08x %08x\n", i, le32_to_cpu(get_unaligned((__le32 *) &buf[i])), le32_to_cpu(get_unaligned((__le32 *) @@ -731,7 +731,7 @@ static int gen_ndis_set_resp (u8 configNr, u32 OID, u8 *buf, u32 buf_len, */ *params->filter = (u16) le32_to_cpu(get_unaligned( (__le32 *)buf)); - DEBUG("%s: OID_GEN_CURRENT_PACKET_FILTER %08x\n", + DBG("%s: OID_GEN_CURRENT_PACKET_FILTER %08x\n", __FUNCTION__, *params->filter); /* this call has a significant side effect: it's @@ -756,7 +756,7 @@ update_linkstate: case OID_802_3_MULTICAST_LIST: /* I think we can ignore this */ - DEBUG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__); + DBG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__); retval = 0; break; #if 0 @@ -764,7 +764,7 @@ update_linkstate: { struct rndis_config_parameter *param; param = (struct rndis_config_parameter *) buf; - DEBUG("%s: OID_GEN_RNDIS_CONFIG_PARAMETER '%*s'\n", + DBG("%s: OID_GEN_RNDIS_CONFIG_PARAMETER '%*s'\n", __FUNCTION__, min(cpu_to_le32(param->ParameterNameLength),80), buf + param->ParameterNameOffset); @@ -781,7 +781,7 @@ update_linkstate: * FIXME ... then things go batty; Windows wedges itself. */ i = le32_to_cpu(get_unaligned((__le32 *)buf)); - DEBUG("%s: OID_PNP_SET_POWER D%d\n", __FUNCTION__, i - 1); + DBG("%s: OID_PNP_SET_POWER D%d\n", __FUNCTION__, i - 1); switch (i) { case NdisDeviceStateD0: *params->filter = params->saved_filter; @@ -858,7 +858,7 @@ static int rndis_query_response (int configNr, rndis_query_msg_type *buf) rndis_query_cmplt_type *resp; rndis_resp_t *r; - // DEBUG("%s: OID = %08X\n", __FUNCTION__, cpu_to_le32(buf->OID)); + // DBG("%s: OID = %08X\n", __FUNCTION__, cpu_to_le32(buf->OID)); if (!rndis_per_dev_params [configNr].dev) return -ENOTSUPP; /* @@ -911,15 +911,15 @@ static int rndis_set_response (int configNr, rndis_set_msg_type *buf) BufOffset = le32_to_cpu (buf->InformationBufferOffset); #ifdef VERBOSE - DEBUG("%s: Length: %d\n", __FUNCTION__, BufLength); - DEBUG("%s: Offset: %d\n", __FUNCTION__, BufOffset); - DEBUG("%s: InfoBuffer: ", __FUNCTION__); + DBG("%s: Length: %d\n", __FUNCTION__, BufLength); + DBG("%s: Offset: %d\n", __FUNCTION__, BufOffset); + DBG("%s: InfoBuffer: ", __FUNCTION__); for (i = 0; i < BufLength; i++) { - DEBUG ("%02x ", *(((u8 *) buf) + i + 8 + BufOffset)); + DBG("%02x ", *(((u8 *) buf) + i + 8 + BufOffset)); } - DEBUG ("\n"); + DBG("\n"); #endif resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_SET_CMPLT); @@ -1082,14 +1082,14 @@ int rndis_msg_parser (u8 configNr, u8 *buf) /* For USB: responses may take up to 10 seconds */ switch (MsgType) { case REMOTE_NDIS_INITIALIZE_MSG: - DEBUG("%s: REMOTE_NDIS_INITIALIZE_MSG\n", + DBG("%s: REMOTE_NDIS_INITIALIZE_MSG\n", __FUNCTION__ ); params->state = RNDIS_INITIALIZED; return rndis_init_response (configNr, (rndis_init_msg_type *) buf); case REMOTE_NDIS_HALT_MSG: - DEBUG("%s: REMOTE_NDIS_HALT_MSG\n", + DBG("%s: REMOTE_NDIS_HALT_MSG\n", __FUNCTION__ ); params->state = RNDIS_UNINITIALIZED; if (params->dev) { @@ -1107,7 +1107,7 @@ int rndis_msg_parser (u8 configNr, u8 *buf) (rndis_set_msg_type *) buf); case REMOTE_NDIS_RESET_MSG: - DEBUG("%s: REMOTE_NDIS_RESET_MSG\n", + DBG("%s: REMOTE_NDIS_RESET_MSG\n", __FUNCTION__ ); return rndis_reset_response (configNr, (rndis_reset_msg_type *) buf); @@ -1115,7 +1115,7 @@ int rndis_msg_parser (u8 configNr, u8 *buf) case REMOTE_NDIS_KEEPALIVE_MSG: /* For USB: host does this every 5 seconds */ if (rndis_debug > 1) - DEBUG("%s: REMOTE_NDIS_KEEPALIVE_MSG\n", + DBG("%s: REMOTE_NDIS_KEEPALIVE_MSG\n", __FUNCTION__ ); return rndis_keepalive_response (configNr, (rndis_keepalive_msg_type *) @@ -1132,7 +1132,7 @@ int rndis_msg_parser (u8 configNr, u8 *buf) { unsigned i; for (i = 0; i < MsgLength; i += 16) { - DEBUG ("%03d: " + DBG("%03d: " " %02x %02x %02x %02x" " %02x %02x %02x %02x" " %02x %02x %02x %02x" @@ -1163,18 +1163,18 @@ int rndis_register (int (* rndis_control_ack) (struct net_device *)) if (!rndis_per_dev_params [i].used) { rndis_per_dev_params [i].used = 1; rndis_per_dev_params [i].ack = rndis_control_ack; - DEBUG("%s: configNr = %d\n", __FUNCTION__, i); + DBG("%s: configNr = %d\n", __FUNCTION__, i); return i; } } - DEBUG("failed\n"); + DBG("failed\n"); return -1; } void rndis_deregister (int configNr) { - DEBUG("%s: \n", __FUNCTION__ ); + DBG("%s: \n", __FUNCTION__ ); if (configNr >= RNDIS_MAX_CONFIGS) return; rndis_per_dev_params [configNr].used = 0; @@ -1186,7 +1186,7 @@ int rndis_set_param_dev (u8 configNr, struct net_device *dev, struct net_device_stats *stats, u16 *cdc_filter) { - DEBUG("%s:\n", __FUNCTION__ ); + DBG("%s:\n", __FUNCTION__ ); if (!dev || !stats) return -1; if (configNr >= RNDIS_MAX_CONFIGS) return -1; @@ -1199,7 +1199,7 @@ int rndis_set_param_dev (u8 configNr, struct net_device *dev, int rndis_set_param_vendor (u8 configNr, u32 vendorID, const char *vendorDescr) { - DEBUG("%s:\n", __FUNCTION__ ); + DBG("%s:\n", __FUNCTION__ ); if (!vendorDescr) return -1; if (configNr >= RNDIS_MAX_CONFIGS) return -1; @@ -1211,7 +1211,7 @@ int rndis_set_param_vendor (u8 configNr, u32 vendorID, const char *vendorDescr) int rndis_set_param_medium (u8 configNr, u32 medium, u32 speed) { - DEBUG("%s: %u %u\n", __FUNCTION__, medium, speed); + DBG("%s: %u %u\n", __FUNCTION__, medium, speed); if (configNr >= RNDIS_MAX_CONFIGS) return -1; rndis_per_dev_params [configNr].medium = medium; @@ -1390,7 +1390,7 @@ static int rndis_proc_write (struct file *file, const char __user *buffer, break; default: if (fl_speed) p->speed = speed; - else DEBUG ("%c is not valid\n", c); + else DBG("%c is not valid\n", c); break; } @@ -1419,12 +1419,12 @@ int __devinit rndis_init (void) if (!(rndis_connect_state [i] = create_proc_entry (name, 0660, NULL))) { - DEBUG ("%s :remove entries", __FUNCTION__); + DBG("%s :remove entries", __FUNCTION__); while (i) { sprintf (name, NAME_TEMPLATE, --i); remove_proc_entry (name, NULL); } - DEBUG ("\n"); + DBG("\n"); return -EIO; } diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c index f847c3414be3..ce4d2e09633d 100644 --- a/drivers/usb/gadget/serial.c +++ b/drivers/usb/gadget/serial.c @@ -33,6 +33,7 @@ #include <linux/device.h> #include <linux/tty.h> #include <linux/tty_flip.h> +#include <linux/mutex.h> #include <asm/byteorder.h> #include <asm/io.h> @@ -258,7 +259,7 @@ static const char *EP_IN_NAME; static const char *EP_OUT_NAME; static const char *EP_NOTIFY_NAME; -static struct semaphore gs_open_close_sem[GS_NUM_PORTS]; +static struct mutex gs_open_close_lock[GS_NUM_PORTS]; static unsigned int read_q_size = GS_DEFAULT_READ_Q_SIZE; static unsigned int write_q_size = GS_DEFAULT_WRITE_Q_SIZE; @@ -595,7 +596,7 @@ static int __init gs_module_init(void) tty_set_operations(gs_tty_driver, &gs_tty_ops); for (i=0; i < GS_NUM_PORTS; i++) - sema_init(&gs_open_close_sem[i], 1); + mutex_init(&gs_open_close_lock[i]); retval = tty_register_driver(gs_tty_driver); if (retval) { @@ -635,7 +636,7 @@ static int gs_open(struct tty_struct *tty, struct file *file) struct gs_port *port; struct gs_dev *dev; struct gs_buf *buf; - struct semaphore *sem; + struct mutex *mtx; int ret; port_num = tty->index; @@ -656,10 +657,10 @@ static int gs_open(struct tty_struct *tty, struct file *file) return -ENODEV; } - sem = &gs_open_close_sem[port_num]; - if (down_interruptible(sem)) { + mtx = &gs_open_close_lock[port_num]; + if (mutex_lock_interruptible(mtx)) { printk(KERN_ERR - "gs_open: (%d,%p,%p) interrupted waiting for semaphore\n", + "gs_open: (%d,%p,%p) interrupted waiting for mutex\n", port_num, tty, file); return -ERESTARTSYS; } @@ -754,12 +755,12 @@ static int gs_open(struct tty_struct *tty, struct file *file) exit_unlock_port: spin_unlock_irqrestore(&port->port_lock, flags); - up(sem); + mutex_unlock(mtx); return ret; exit_unlock_dev: spin_unlock_irqrestore(&dev->dev_lock, flags); - up(sem); + mutex_unlock(mtx); return ret; } @@ -781,7 +782,7 @@ exit_unlock_dev: static void gs_close(struct tty_struct *tty, struct file *file) { struct gs_port *port = tty->driver_data; - struct semaphore *sem; + struct mutex *mtx; if (port == NULL) { printk(KERN_ERR "gs_close: NULL port pointer\n"); @@ -790,8 +791,8 @@ static void gs_close(struct tty_struct *tty, struct file *file) gs_debug("gs_close: (%d,%p,%p)\n", port->port_num, tty, file); - sem = &gs_open_close_sem[port->port_num]; - down(sem); + mtx = &gs_open_close_lock[port->port_num]; + mutex_lock(mtx); spin_lock_irq(&port->port_lock); @@ -846,7 +847,7 @@ static void gs_close(struct tty_struct *tty, struct file *file) exit: spin_unlock_irq(&port->port_lock); - up(sem); + mutex_unlock(mtx); } /* @@ -1427,7 +1428,7 @@ static int __init gs_bind(struct usb_gadget *gadget) gs_acm_config_desc.bmAttributes |= USB_CONFIG_ATT_WAKEUP; } - gs_device = dev = kmalloc(sizeof(struct gs_dev), GFP_KERNEL); + gs_device = dev = kzalloc(sizeof(struct gs_dev), GFP_KERNEL); if (dev == NULL) return -ENOMEM; @@ -1435,7 +1436,6 @@ static int __init gs_bind(struct usb_gadget *gadget) init_utsname()->sysname, init_utsname()->release, gadget->name); - memset(dev, 0, sizeof(struct gs_dev)); dev->dev_gadget = gadget; spin_lock_init(&dev->dev_lock); INIT_LIST_HEAD(&dev->dev_req_list); @@ -1691,14 +1691,12 @@ static int gs_setup_class(struct usb_gadget *gadget, switch (ctrl->bRequest) { case USB_CDC_REQ_SET_LINE_CODING: - ret = min(wLength, - (u16)sizeof(struct usb_cdc_line_coding)); - if (port) { - spin_lock(&port->port_lock); - memcpy(&port->port_line_coding, req->buf, ret); - spin_unlock(&port->port_lock); - } - ret = 0; + /* FIXME Submit req to read the data; have its completion + * handler copy that data to port->port_line_coding (iff + * it's valid) and maybe pass it on. Until then, fail. + */ + printk(KERN_WARNING "gs_setup: set_line_coding " + "unuspported\n"); break; case USB_CDC_REQ_GET_LINE_CODING: @@ -1713,11 +1711,18 @@ static int gs_setup_class(struct usb_gadget *gadget, break; case USB_CDC_REQ_SET_CONTROL_LINE_STATE: - ret = 0; + /* FIXME Submit req to read the data; have its completion + * handler use that to set the state (iff it's valid) and + * maybe pass it on. Until then, fail. + */ + printk(KERN_WARNING "gs_setup: set_control_line_state " + "unuspported\n"); break; default: - printk(KERN_ERR "gs_setup: unknown class request, type=%02x, request=%02x, value=%04x, index=%04x, length=%d\n", + printk(KERN_ERR "gs_setup: unknown class request, " + "type=%02x, request=%02x, value=%04x, " + "index=%04x, length=%d\n", ctrl->bRequestType, ctrl->bRequest, wValue, wIndex, wLength); break; @@ -2215,7 +2220,7 @@ static struct gs_buf *gs_buf_alloc(unsigned int size, gfp_t kmalloc_flags) * * Free the buffer and all associated memory. */ -void gs_buf_free(struct gs_buf *gb) +static void gs_buf_free(struct gs_buf *gb) { if (gb) { kfree(gb->buf_buf); @@ -2228,7 +2233,7 @@ void gs_buf_free(struct gs_buf *gb) * * Clear out all data in the circular buffer. */ -void gs_buf_clear(struct gs_buf *gb) +static void gs_buf_clear(struct gs_buf *gb) { if (gb != NULL) gb->buf_get = gb->buf_put; @@ -2241,7 +2246,7 @@ void gs_buf_clear(struct gs_buf *gb) * Return the number of bytes of data available in the circular * buffer. */ -unsigned int gs_buf_data_avail(struct gs_buf *gb) +static unsigned int gs_buf_data_avail(struct gs_buf *gb) { if (gb != NULL) return (gb->buf_size + gb->buf_put - gb->buf_get) % gb->buf_size; @@ -2255,7 +2260,7 @@ unsigned int gs_buf_data_avail(struct gs_buf *gb) * Return the number of bytes of space available in the circular * buffer. */ -unsigned int gs_buf_space_avail(struct gs_buf *gb) +static unsigned int gs_buf_space_avail(struct gs_buf *gb) { if (gb != NULL) return (gb->buf_size + gb->buf_get - gb->buf_put - 1) % gb->buf_size; @@ -2271,7 +2276,8 @@ unsigned int gs_buf_space_avail(struct gs_buf *gb) * * Return the number of bytes copied. */ -unsigned int gs_buf_put(struct gs_buf *gb, const char *buf, unsigned int count) +static unsigned int +gs_buf_put(struct gs_buf *gb, const char *buf, unsigned int count) { unsigned int len; @@ -2309,7 +2315,8 @@ unsigned int gs_buf_put(struct gs_buf *gb, const char *buf, unsigned int count) * * Return the number of bytes copied. */ -unsigned int gs_buf_get(struct gs_buf *gb, char *buf, unsigned int count) +static unsigned int +gs_buf_get(struct gs_buf *gb, char *buf, unsigned int count) { unsigned int len; diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c index 7078374d0b79..fcfe869acb94 100644 --- a/drivers/usb/gadget/zero.c +++ b/drivers/usb/gadget/zero.c @@ -481,8 +481,7 @@ alloc_ep_req (struct usb_ep *ep, unsigned length) req = usb_ep_alloc_request (ep, GFP_ATOMIC); if (req) { req->length = length; - req->buf = usb_ep_alloc_buffer (ep, length, - &req->dma, GFP_ATOMIC); + req->buf = kmalloc(length, GFP_ATOMIC); if (!req->buf) { usb_ep_free_request (ep, req); req = NULL; @@ -493,8 +492,7 @@ alloc_ep_req (struct usb_ep *ep, unsigned length) static void free_ep_req (struct usb_ep *ep, struct usb_request *req) { - if (req->buf) - usb_ep_free_buffer (ep, req->buf, req->dma, req->length); + kfree(req->buf); usb_ep_free_request (ep, req); } @@ -655,7 +653,8 @@ set_source_sink_config (struct zero_dev *dev, gfp_t gfp_flags) result = usb_ep_enable (ep, d); if (result == 0) { ep->driver_data = dev; - if (source_sink_start_ep (ep, gfp_flags) != 0) { + if (source_sink_start_ep(ep, gfp_flags) + != NULL) { dev->in_ep = ep; continue; } @@ -669,7 +668,8 @@ set_source_sink_config (struct zero_dev *dev, gfp_t gfp_flags) result = usb_ep_enable (ep, d); if (result == 0) { ep->driver_data = dev; - if (source_sink_start_ep (ep, gfp_flags) != 0) { + if (source_sink_start_ep(ep, gfp_flags) + != NULL) { dev->out_ep = ep; continue; } @@ -1199,8 +1199,7 @@ autoconf_fail: dev->req = usb_ep_alloc_request (gadget->ep0, GFP_KERNEL); if (!dev->req) goto enomem; - dev->req->buf = usb_ep_alloc_buffer (gadget->ep0, USB_BUFSIZ, - &dev->req->dma, GFP_KERNEL); + dev->req->buf = kmalloc(USB_BUFSIZ, GFP_KERNEL); if (!dev->req->buf) goto enomem; diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index c8988b1247da..f1025bc53f90 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -137,8 +137,20 @@ config USB_EHCI_TT_NEWSCHED config USB_EHCI_BIG_ENDIAN_MMIO bool - depends on USB_EHCI_HCD - default n + depends on USB_EHCI_HCD && (PPC_CELLEB || PPC_PS3 || 440EPX) + default y + +config USB_EHCI_BIG_ENDIAN_DESC + bool + depends on USB_EHCI_HCD && 440EPX + default y + +config USB_EHCI_FSL + bool + select USB_EHCI_ROOT_HUB_TT + default y if MPC834x || PPC_MPC831x + ---help--- + Variation of ARC USB block used in some Freescale chips. config USB_ISP116X_HCD tristate "ISP116X HCD support" @@ -292,3 +304,15 @@ config USB_SL811_CS To compile this driver as a module, choose M here: the module will be called "sl811_cs". +config USB_R8A66597_HCD + tristate "R8A66597 HCD support" + depends on USB + help + The R8A66597 is a USB 2.0 host and peripheral controller. + + Enable this option if your board has this chip, and you want + to use it as a host controller. If unsure, say N. + + To compile this driver as a module, choose M here: the + module will be called r8a66597-hcd. + diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 2ff396bd180f..bb8e9d44f371 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -15,3 +15,5 @@ obj-$(CONFIG_USB_UHCI_HCD) += uhci-hcd.o obj-$(CONFIG_USB_SL811_HCD) += sl811-hcd.o obj-$(CONFIG_USB_SL811_CS) += sl811_cs.o obj-$(CONFIG_USB_U132_HCD) += u132-hcd.o +obj-$(CONFIG_USB_R8A66597_HCD) += r8a66597-hcd.o + diff --git a/drivers/usb/host/ehci-au1xxx.c b/drivers/usb/host/ehci-au1xxx.c index 5d1b12aad776..b1d19268cb23 100644 --- a/drivers/usb/host/ehci-au1xxx.c +++ b/drivers/usb/host/ehci-au1xxx.c @@ -1,8 +1,6 @@ /* * EHCI HCD (Host Controller Driver) for USB. * - * (C) Copyright 2000-2004 David Brownell <dbrownell@users.sourceforge.net> - * * Bus Glue for AMD Alchemy Au1xxx * * Based on "ohci-au1xxx.c" by Matt Porter <mporter@kernel.crashing.org> @@ -196,6 +194,9 @@ static const struct hc_driver ehci_au1xxx_hc_driver = { /* * basic lifecycle operations + * + * FIXME -- ehci_init() doesn't do enough here. + * See ehci-ppc-soc for a complete implementation. */ .reset = ehci_init, .start = ehci_run, diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index 43eddaecc3dd..c9cc4413198e 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -52,7 +52,7 @@ static void dbg_hcs_params (struct ehci_hcd *ehci, char *label) HCS_INDICATOR (params) ? " ind" : "", HCS_N_CC (params), HCS_N_PCC (params), - HCS_PORTROUTED (params) ? "" : " ordered", + HCS_PORTROUTED (params) ? "" : " ordered", HCS_PPC (params) ? "" : " !ppc", HCS_N_PORTS (params) ); @@ -91,20 +91,20 @@ static void dbg_hcc_params (struct ehci_hcd *ehci, char *label) if (HCC_ISOC_CACHE (params)) { ehci_dbg (ehci, - "%s hcc_params %04x caching frame %s%s%s\n", - label, params, - HCC_PGM_FRAMELISTLEN (params) ? "256/512/1024" : "1024", - HCC_CANPARK (params) ? " park" : "", - HCC_64BIT_ADDR (params) ? " 64 bit addr" : ""); + "%s hcc_params %04x caching frame %s%s%s\n", + label, params, + HCC_PGM_FRAMELISTLEN(params) ? "256/512/1024" : "1024", + HCC_CANPARK(params) ? " park" : "", + HCC_64BIT_ADDR(params) ? " 64 bit addr" : ""); } else { ehci_dbg (ehci, - "%s hcc_params %04x thresh %d uframes %s%s%s\n", - label, - params, - HCC_ISOC_THRES (params), - HCC_PGM_FRAMELISTLEN (params) ? "256/512/1024" : "1024", - HCC_CANPARK (params) ? " park" : "", - HCC_64BIT_ADDR (params) ? " 64 bit addr" : ""); + "%s hcc_params %04x thresh %d uframes %s%s%s\n", + label, + params, + HCC_ISOC_THRES(params), + HCC_PGM_FRAMELISTLEN(params) ? "256/512/1024" : "1024", + HCC_CANPARK(params) ? " park" : "", + HCC_64BIT_ADDR(params) ? " 64 bit addr" : ""); } } #else @@ -115,23 +115,23 @@ static inline void dbg_hcc_params (struct ehci_hcd *ehci, char *label) {} #ifdef DEBUG -static void __attribute__((__unused__)) +static void __maybe_unused dbg_qtd (const char *label, struct ehci_hcd *ehci, struct ehci_qtd *qtd) { - ehci_dbg (ehci, "%s td %p n%08x %08x t%08x p0=%08x\n", label, qtd, - le32_to_cpup (&qtd->hw_next), - le32_to_cpup (&qtd->hw_alt_next), - le32_to_cpup (&qtd->hw_token), - le32_to_cpup (&qtd->hw_buf [0])); + ehci_dbg(ehci, "%s td %p n%08x %08x t%08x p0=%08x\n", label, qtd, + hc32_to_cpup(ehci, &qtd->hw_next), + hc32_to_cpup(ehci, &qtd->hw_alt_next), + hc32_to_cpup(ehci, &qtd->hw_token), + hc32_to_cpup(ehci, &qtd->hw_buf [0])); if (qtd->hw_buf [1]) - ehci_dbg (ehci, " p1=%08x p2=%08x p3=%08x p4=%08x\n", - le32_to_cpup (&qtd->hw_buf [1]), - le32_to_cpup (&qtd->hw_buf [2]), - le32_to_cpup (&qtd->hw_buf [3]), - le32_to_cpup (&qtd->hw_buf [4])); + ehci_dbg(ehci, " p1=%08x p2=%08x p3=%08x p4=%08x\n", + hc32_to_cpup(ehci, &qtd->hw_buf[1]), + hc32_to_cpup(ehci, &qtd->hw_buf[2]), + hc32_to_cpup(ehci, &qtd->hw_buf[3]), + hc32_to_cpup(ehci, &qtd->hw_buf[4])); } -static void __attribute__((__unused__)) +static void __maybe_unused dbg_qh (const char *label, struct ehci_hcd *ehci, struct ehci_qh *qh) { ehci_dbg (ehci, "%s qh %p n%08x info %x %x qtd %x\n", label, @@ -140,51 +140,53 @@ dbg_qh (const char *label, struct ehci_hcd *ehci, struct ehci_qh *qh) dbg_qtd ("overlay", ehci, (struct ehci_qtd *) &qh->hw_qtd_next); } -static void __attribute__((__unused__)) +static void __maybe_unused dbg_itd (const char *label, struct ehci_hcd *ehci, struct ehci_itd *itd) { ehci_dbg (ehci, "%s [%d] itd %p, next %08x, urb %p\n", - label, itd->frame, itd, le32_to_cpu(itd->hw_next), itd->urb); + label, itd->frame, itd, hc32_to_cpu(ehci, itd->hw_next), + itd->urb); ehci_dbg (ehci, " trans: %08x %08x %08x %08x %08x %08x %08x %08x\n", - le32_to_cpu(itd->hw_transaction[0]), - le32_to_cpu(itd->hw_transaction[1]), - le32_to_cpu(itd->hw_transaction[2]), - le32_to_cpu(itd->hw_transaction[3]), - le32_to_cpu(itd->hw_transaction[4]), - le32_to_cpu(itd->hw_transaction[5]), - le32_to_cpu(itd->hw_transaction[6]), - le32_to_cpu(itd->hw_transaction[7])); + hc32_to_cpu(ehci, itd->hw_transaction[0]), + hc32_to_cpu(ehci, itd->hw_transaction[1]), + hc32_to_cpu(ehci, itd->hw_transaction[2]), + hc32_to_cpu(ehci, itd->hw_transaction[3]), + hc32_to_cpu(ehci, itd->hw_transaction[4]), + hc32_to_cpu(ehci, itd->hw_transaction[5]), + hc32_to_cpu(ehci, itd->hw_transaction[6]), + hc32_to_cpu(ehci, itd->hw_transaction[7])); ehci_dbg (ehci, " buf: %08x %08x %08x %08x %08x %08x %08x\n", - le32_to_cpu(itd->hw_bufp[0]), - le32_to_cpu(itd->hw_bufp[1]), - le32_to_cpu(itd->hw_bufp[2]), - le32_to_cpu(itd->hw_bufp[3]), - le32_to_cpu(itd->hw_bufp[4]), - le32_to_cpu(itd->hw_bufp[5]), - le32_to_cpu(itd->hw_bufp[6])); + hc32_to_cpu(ehci, itd->hw_bufp[0]), + hc32_to_cpu(ehci, itd->hw_bufp[1]), + hc32_to_cpu(ehci, itd->hw_bufp[2]), + hc32_to_cpu(ehci, itd->hw_bufp[3]), + hc32_to_cpu(ehci, itd->hw_bufp[4]), + hc32_to_cpu(ehci, itd->hw_bufp[5]), + hc32_to_cpu(ehci, itd->hw_bufp[6])); ehci_dbg (ehci, " index: %d %d %d %d %d %d %d %d\n", itd->index[0], itd->index[1], itd->index[2], itd->index[3], itd->index[4], itd->index[5], itd->index[6], itd->index[7]); } -static void __attribute__((__unused__)) +static void __maybe_unused dbg_sitd (const char *label, struct ehci_hcd *ehci, struct ehci_sitd *sitd) { ehci_dbg (ehci, "%s [%d] sitd %p, next %08x, urb %p\n", - label, sitd->frame, sitd, le32_to_cpu(sitd->hw_next), sitd->urb); + label, sitd->frame, sitd, hc32_to_cpu(ehci, sitd->hw_next), + sitd->urb); ehci_dbg (ehci, " addr %08x sched %04x result %08x buf %08x %08x\n", - le32_to_cpu(sitd->hw_fullspeed_ep), - le32_to_cpu(sitd->hw_uframe), - le32_to_cpu(sitd->hw_results), - le32_to_cpu(sitd->hw_buf [0]), - le32_to_cpu(sitd->hw_buf [1])); + hc32_to_cpu(ehci, sitd->hw_fullspeed_ep), + hc32_to_cpu(ehci, sitd->hw_uframe), + hc32_to_cpu(ehci, sitd->hw_results), + hc32_to_cpu(ehci, sitd->hw_buf[0]), + hc32_to_cpu(ehci, sitd->hw_buf[1])); } -static int __attribute__((__unused__)) +static int __maybe_unused dbg_status_buf (char *buf, unsigned len, const char *label, u32 status) { return scnprintf (buf, len, @@ -203,7 +205,7 @@ dbg_status_buf (char *buf, unsigned len, const char *label, u32 status) ); } -static int __attribute__((__unused__)) +static int __maybe_unused dbg_intr_buf (char *buf, unsigned len, const char *label, u32 enable) { return scnprintf (buf, len, @@ -267,28 +269,27 @@ dbg_port_buf (char *buf, unsigned len, const char *label, int port, u32 status) (status & PORT_PEC) ? " PEC" : "", (status & PORT_PE) ? " PE" : "", (status & PORT_CSC) ? " CSC" : "", - (status & PORT_CONNECT) ? " CONNECT" : "" - ); + (status & PORT_CONNECT) ? " CONNECT" : ""); } #else -static inline void __attribute__((__unused__)) +static inline void __maybe_unused dbg_qh (char *label, struct ehci_hcd *ehci, struct ehci_qh *qh) {} -static inline int __attribute__((__unused__)) +static inline int __maybe_unused dbg_status_buf (char *buf, unsigned len, const char *label, u32 status) { return 0; } -static inline int __attribute__((__unused__)) +static inline int __maybe_unused dbg_command_buf (char *buf, unsigned len, const char *label, u32 command) { return 0; } -static inline int __attribute__((__unused__)) +static inline int __maybe_unused dbg_intr_buf (char *buf, unsigned len, const char *label, u32 enable) { return 0; } -static inline int __attribute__((__unused__)) +static inline int __maybe_unused dbg_port_buf (char *buf, unsigned len, const char *label, int port, u32 status) { return 0; } @@ -332,9 +333,10 @@ static inline void remove_debug_files (struct ehci_hcd *bus) { } default: tmp = '?'; break; \ }; tmp; }) -static inline char token_mark (__le32 token) +static inline char token_mark(struct ehci_hcd *ehci, __hc32 token) { - __u32 v = le32_to_cpu (token); + __u32 v = hc32_to_cpu(ehci, token); + if (v & QTD_STS_ACTIVE) return '*'; if (v & QTD_STS_HALT) @@ -360,46 +362,48 @@ static void qh_lines ( unsigned size = *sizep; char *next = *nextp; char mark; + u32 list_end = EHCI_LIST_END(ehci); - if (qh->hw_qtd_next == EHCI_LIST_END) /* NEC does this */ + if (qh->hw_qtd_next == list_end) /* NEC does this */ mark = '@'; else - mark = token_mark (qh->hw_token); + mark = token_mark(ehci, qh->hw_token); if (mark == '/') { /* qh_alt_next controls qh advance? */ - if ((qh->hw_alt_next & QTD_MASK) == ehci->async->hw_alt_next) + if ((qh->hw_alt_next & QTD_MASK(ehci)) + == ehci->async->hw_alt_next) mark = '#'; /* blocked */ - else if (qh->hw_alt_next == EHCI_LIST_END) + else if (qh->hw_alt_next == list_end) mark = '.'; /* use hw_qtd_next */ /* else alt_next points to some other qtd */ } - scratch = le32_to_cpup (&qh->hw_info1); - hw_curr = (mark == '*') ? le32_to_cpup (&qh->hw_current) : 0; + scratch = hc32_to_cpup(ehci, &qh->hw_info1); + hw_curr = (mark == '*') ? hc32_to_cpup(ehci, &qh->hw_current) : 0; temp = scnprintf (next, size, "qh/%p dev%d %cs ep%d %08x %08x (%08x%c %s nak%d)", qh, scratch & 0x007f, speed_char (scratch), (scratch >> 8) & 0x000f, - scratch, le32_to_cpup (&qh->hw_info2), - le32_to_cpup (&qh->hw_token), mark, - (__constant_cpu_to_le32 (QTD_TOGGLE) & qh->hw_token) + scratch, hc32_to_cpup(ehci, &qh->hw_info2), + hc32_to_cpup(ehci, &qh->hw_token), mark, + (cpu_to_hc32(ehci, QTD_TOGGLE) & qh->hw_token) ? "data1" : "data0", - (le32_to_cpup (&qh->hw_alt_next) >> 1) & 0x0f); + (hc32_to_cpup(ehci, &qh->hw_alt_next) >> 1) & 0x0f); size -= temp; next += temp; /* hc may be modifying the list as we read it ... */ list_for_each (entry, &qh->qtd_list) { td = list_entry (entry, struct ehci_qtd, qtd_list); - scratch = le32_to_cpup (&td->hw_token); + scratch = hc32_to_cpup(ehci, &td->hw_token); mark = ' '; if (hw_curr == td->qtd_dma) mark = '*'; - else if (qh->hw_qtd_next == cpu_to_le32(td->qtd_dma)) + else if (qh->hw_qtd_next == cpu_to_hc32(ehci, td->qtd_dma)) mark = '+'; else if (QTD_LENGTH (scratch)) { if (td->hw_alt_next == ehci->async->hw_alt_next) mark = '#'; - else if (td->hw_alt_next != EHCI_LIST_END) + else if (td->hw_alt_next != list_end) mark = '/'; } temp = snprintf (next, size, @@ -490,7 +494,7 @@ show_periodic (struct class_device *class_dev, char *buf) unsigned temp, size, seen_count; char *next; unsigned i; - __le32 tag; + __hc32 tag; if (!(seen = kmalloc (DBG_SCHED_LIMIT * sizeof *seen, GFP_ATOMIC))) return 0; @@ -514,18 +518,19 @@ show_periodic (struct class_device *class_dev, char *buf) p = ehci->pshadow [i]; if (likely (!p.ptr)) continue; - tag = Q_NEXT_TYPE (ehci->periodic [i]); + tag = Q_NEXT_TYPE(ehci, ehci->periodic [i]); temp = scnprintf (next, size, "%4d: ", i); size -= temp; next += temp; do { - switch (tag) { + switch (hc32_to_cpu(ehci, tag)) { case Q_TYPE_QH: temp = scnprintf (next, size, " qh%d-%04x/%p", p.qh->period, - le32_to_cpup (&p.qh->hw_info2) + hc32_to_cpup(ehci, + &p.qh->hw_info2) /* uframe masks */ & (QH_CMASK | QH_SMASK), p.qh); @@ -543,7 +548,7 @@ show_periodic (struct class_device *class_dev, char *buf) } /* show more info the first time around */ if (temp == seen_count && p.ptr) { - u32 scratch = le32_to_cpup ( + u32 scratch = hc32_to_cpup(ehci, &p.qh->hw_info1); struct ehci_qtd *qtd; char *type = ""; @@ -554,7 +559,8 @@ show_periodic (struct class_device *class_dev, char *buf) &p.qh->qtd_list, qtd_list) { temp++; - switch (0x03 & (le32_to_cpu ( + switch (0x03 & (hc32_to_cpu( + ehci, qtd->hw_token) >> 8)) { case 0: type = "out"; continue; case 1: type = "in"; continue; @@ -576,7 +582,7 @@ show_periodic (struct class_device *class_dev, char *buf) } else temp = 0; if (p.qh) { - tag = Q_NEXT_TYPE (p.qh->hw_next); + tag = Q_NEXT_TYPE(ehci, p.qh->hw_next); p = p.qh->qh_next; } break; @@ -584,23 +590,23 @@ show_periodic (struct class_device *class_dev, char *buf) temp = scnprintf (next, size, " fstn-%8x/%p", p.fstn->hw_prev, p.fstn); - tag = Q_NEXT_TYPE (p.fstn->hw_next); + tag = Q_NEXT_TYPE(ehci, p.fstn->hw_next); p = p.fstn->fstn_next; break; case Q_TYPE_ITD: temp = scnprintf (next, size, " itd/%p", p.itd); - tag = Q_NEXT_TYPE (p.itd->hw_next); + tag = Q_NEXT_TYPE(ehci, p.itd->hw_next); p = p.itd->itd_next; break; case Q_TYPE_SITD: temp = scnprintf (next, size, " sitd%d-%04x/%p", p.sitd->stream->interval, - le32_to_cpup (&p.sitd->hw_uframe) + hc32_to_cpup(ehci, &p.sitd->hw_uframe) & 0x0000ffff, p.sitd); - tag = Q_NEXT_TYPE (p.sitd->hw_next); + tag = Q_NEXT_TYPE(ehci, p.sitd->hw_next); p = p.sitd->sitd_next; break; } @@ -673,7 +679,8 @@ show_registers (struct class_device *class_dev, char *buf) unsigned count = 256/4; pdev = to_pci_dev(ehci_to_hcd(ehci)->self.controller); - offset = HCC_EXT_CAPS (ehci_readl(ehci, &ehci->caps->hcc_params)); + offset = HCC_EXT_CAPS(ehci_readl(ehci, + &ehci->caps->hcc_params)); while (offset && count--) { pci_read_config_dword (pdev, offset, &cap); switch (cap & 0xff) { @@ -740,14 +747,16 @@ show_registers (struct class_device *class_dev, char *buf) for (i = 1; i <= HCS_N_PORTS (ehci->hcs_params); i++) { temp = dbg_port_buf (scratch, sizeof scratch, label, i, - ehci_readl(ehci, &ehci->regs->port_status [i - 1])); + ehci_readl(ehci, + &ehci->regs->port_status[i - 1])); temp = scnprintf (next, size, fmt, temp, scratch); size -= temp; next += temp; if (i == HCS_DEBUG_PORT(ehci->hcs_params) && ehci->debug) { temp = scnprintf (next, size, " debug control %08x\n", - ehci_readl(ehci, &ehci->debug->control)); + ehci_readl(ehci, + &ehci->debug->control)); size -= temp; next += temp; } diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index c7a7c590426f..b7b7bfbce527 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -67,7 +67,8 @@ int usb_hcd_fsl_probe(const struct hc_driver *driver, * in host mode. */ if (!((pdata->operating_mode == FSL_USB2_DR_HOST) || - (pdata->operating_mode == FSL_USB2_MPH_HOST))) { + (pdata->operating_mode == FSL_USB2_MPH_HOST) || + (pdata->operating_mode == FSL_USB2_DR_OTG))) { dev_err(&pdev->dev, "Non Host Mode configured for %s. Wrong driver linked.\n", pdev->dev.bus_id); @@ -185,12 +186,14 @@ static void mpc83xx_usb_setup(struct usb_hcd *hcd) struct ehci_hcd *ehci = hcd_to_ehci(hcd); struct fsl_usb2_platform_data *pdata; void __iomem *non_ehci = hcd->regs; + u32 temp; pdata = (struct fsl_usb2_platform_data *)hcd->self.controller-> platform_data; /* Enable PHY interface in the control reg. */ - out_be32(non_ehci + FSL_SOC_USB_CTRL, 0x00000004); + temp = in_be32(non_ehci + FSL_SOC_USB_CTRL); + out_be32(non_ehci + FSL_SOC_USB_CTRL, temp | 0x00000004); out_be32(non_ehci + FSL_SOC_USB_SNOOP1, 0x0000001b); #if defined(CONFIG_PPC32) && !defined(CONFIG_NOT_COHERENT_CACHE) @@ -206,7 +209,8 @@ static void mpc83xx_usb_setup(struct usb_hcd *hcd) out_be32(non_ehci + FSL_SOC_USB_SNOOP2, 0x80000000 | SNOOP_SIZE_2GB); #endif - if (pdata->operating_mode == FSL_USB2_DR_HOST) + if ((pdata->operating_mode == FSL_USB2_DR_HOST) || + (pdata->operating_mode == FSL_USB2_DR_OTG)) mpc83xx_setup_phy(ehci, pdata->phy_mode, 0); if (pdata->operating_mode == FSL_USB2_MPH_HOST) { diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 553e5c6a702e..7f60b054ae2b 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -41,10 +41,6 @@ #include <asm/irq.h> #include <asm/system.h> #include <asm/unaligned.h> -#ifdef CONFIG_PPC_PS3 -#include <asm/firmware.h> -#endif - /*-------------------------------------------------------------------------*/ @@ -201,9 +197,15 @@ static void tdi_reset (struct ehci_hcd *ehci) u32 __iomem *reg_ptr; u32 tmp; - reg_ptr = (u32 __iomem *)(((u8 __iomem *)ehci->regs) + 0x68); + reg_ptr = (u32 __iomem *)(((u8 __iomem *)ehci->regs) + USBMODE); tmp = ehci_readl(ehci, reg_ptr); - tmp |= 0x3; + tmp |= USBMODE_CM_HC; + /* The default byte access to MMR space is LE after + * controller reset. Set the required endian mode + * for transfer buffers to match the host microprocessor + */ + if (ehci_big_endian_mmio(ehci)) + tmp |= USBMODE_BE; ehci_writel(ehci, tmp, reg_ptr); } @@ -347,6 +349,8 @@ static void ehci_port_power (struct ehci_hcd *ehci, int is_on) is_on ? SetPortFeature : ClearPortFeature, USB_PORT_FEAT_POWER, port--, NULL, 0); + /* Flush those writes */ + ehci_readl(ehci, &ehci->regs->command); msleep(20); } @@ -470,12 +474,12 @@ static int ehci_init(struct usb_hcd *hcd) * from automatically advancing to the next td after short reads. */ ehci->async->qh_next.qh = NULL; - ehci->async->hw_next = QH_NEXT(ehci->async->qh_dma); - ehci->async->hw_info1 = cpu_to_le32(QH_HEAD); - ehci->async->hw_token = cpu_to_le32(QTD_STS_HALT); - ehci->async->hw_qtd_next = EHCI_LIST_END; + ehci->async->hw_next = QH_NEXT(ehci, ehci->async->qh_dma); + ehci->async->hw_info1 = cpu_to_hc32(ehci, QH_HEAD); + ehci->async->hw_token = cpu_to_hc32(ehci, QTD_STS_HALT); + ehci->async->hw_qtd_next = EHCI_LIST_END(ehci); ehci->async->qh_state = QH_STATE_LINKED; - ehci->async->hw_alt_next = QTD_NEXT(ehci->async->dummy->qtd_dma); + ehci->async->hw_alt_next = QTD_NEXT(ehci, ehci->async->dummy->qtd_dma); /* clear interrupt enables, set irq latency */ if (log2_irq_thresh < 0 || log2_irq_thresh > 6) @@ -925,7 +929,7 @@ MODULE_LICENSE ("GPL"); #define PCI_DRIVER ehci_pci_driver #endif -#ifdef CONFIG_MPC834x +#ifdef CONFIG_USB_EHCI_FSL #include "ehci-fsl.c" #define PLATFORM_DRIVER ehci_fsl_driver #endif @@ -942,7 +946,12 @@ MODULE_LICENSE ("GPL"); #ifdef CONFIG_PPC_PS3 #include "ehci-ps3.c" -#define PS3_SYSTEM_BUS_DRIVER ps3_ehci_sb_driver +#define PS3_SYSTEM_BUS_DRIVER ps3_ehci_driver +#endif + +#ifdef CONFIG_440EPX +#include "ehci-ppc-soc.c" +#define PLATFORM_DRIVER ehci_ppc_soc_driver #endif #if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \ @@ -976,18 +985,15 @@ static int __init ehci_hcd_init(void) #endif #ifdef PS3_SYSTEM_BUS_DRIVER - if (firmware_has_feature(FW_FEATURE_PS3_LV1)) { - retval = ps3_system_bus_driver_register( - &PS3_SYSTEM_BUS_DRIVER); - if (retval < 0) { + retval = ps3_ehci_driver_register(&PS3_SYSTEM_BUS_DRIVER); + if (retval < 0) { #ifdef PLATFORM_DRIVER - platform_driver_unregister(&PLATFORM_DRIVER); + platform_driver_unregister(&PLATFORM_DRIVER); #endif #ifdef PCI_DRIVER - pci_unregister_driver(&PCI_DRIVER); + pci_unregister_driver(&PCI_DRIVER); #endif - return retval; - } + return retval; } #endif @@ -1004,8 +1010,7 @@ static void __exit ehci_hcd_cleanup(void) pci_unregister_driver(&PCI_DRIVER); #endif #ifdef PS3_SYSTEM_BUS_DRIVER - if (firmware_has_feature(FW_FEATURE_PS3_LV1)) - ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER); + ps3_ehci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER); #endif } module_exit(ehci_hcd_cleanup); diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index f4d301bc83b9..0dcb4164dc83 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -28,6 +28,89 @@ /*-------------------------------------------------------------------------*/ +#ifdef CONFIG_USB_PERSIST + +static int ehci_hub_control( + struct usb_hcd *hcd, + u16 typeReq, + u16 wValue, + u16 wIndex, + char *buf, + u16 wLength +); + +/* After a power loss, ports that were owned by the companion must be + * reset so that the companion can still own them. + */ +static void ehci_handover_companion_ports(struct ehci_hcd *ehci) +{ + u32 __iomem *reg; + u32 status; + int port; + __le32 buf; + struct usb_hcd *hcd = ehci_to_hcd(ehci); + + if (!ehci->owned_ports) + return; + + /* Give the connections some time to appear */ + msleep(20); + + port = HCS_N_PORTS(ehci->hcs_params); + while (port--) { + if (test_bit(port, &ehci->owned_ports)) { + reg = &ehci->regs->port_status[port]; + status = ehci_readl(ehci, reg) & ~PORT_RWC_BITS; + + /* Port already owned by companion? */ + if (status & PORT_OWNER) + clear_bit(port, &ehci->owned_ports); + else if (test_bit(port, &ehci->companion_ports)) + ehci_writel(ehci, status & ~PORT_PE, reg); + else + ehci_hub_control(hcd, SetPortFeature, + USB_PORT_FEAT_RESET, port + 1, + NULL, 0); + } + } + + if (!ehci->owned_ports) + return; + msleep(90); /* Wait for resets to complete */ + + port = HCS_N_PORTS(ehci->hcs_params); + while (port--) { + if (test_bit(port, &ehci->owned_ports)) { + ehci_hub_control(hcd, GetPortStatus, + 0, port + 1, + (char *) &buf, sizeof(buf)); + + /* The companion should now own the port, + * but if something went wrong the port must not + * remain enabled. + */ + reg = &ehci->regs->port_status[port]; + status = ehci_readl(ehci, reg) & ~PORT_RWC_BITS; + if (status & PORT_OWNER) + ehci_writel(ehci, status | PORT_CSC, reg); + else { + ehci_dbg(ehci, "failed handover port %d: %x\n", + port + 1, status); + ehci_writel(ehci, status & ~PORT_PE, reg); + } + } + } + + ehci->owned_ports = 0; +} + +#else /* CONFIG_USB_PERSIST */ + +static inline void ehci_handover_companion_ports(struct ehci_hcd *ehci) +{ } + +#endif + #ifdef CONFIG_PM static int ehci_bus_suspend (struct usb_hcd *hcd) @@ -60,14 +143,16 @@ static int ehci_bus_suspend (struct usb_hcd *hcd) * then manually resume them in the bus_resume() routine. */ ehci->bus_suspended = 0; + ehci->owned_ports = 0; while (port--) { u32 __iomem *reg = &ehci->regs->port_status [port]; u32 t1 = ehci_readl(ehci, reg) & ~PORT_RWC_BITS; u32 t2 = t1; /* keep track of which ports we suspend */ - if ((t1 & PORT_PE) && !(t1 & PORT_OWNER) && - !(t1 & PORT_SUSPEND)) { + if (t1 & PORT_OWNER) + set_bit(port, &ehci->owned_ports); + else if ((t1 & PORT_PE) && !(t1 & PORT_SUSPEND)) { t2 |= PORT_SUSPEND; set_bit(port, &ehci->bus_suspended); } @@ -108,11 +193,16 @@ static int ehci_bus_resume (struct usb_hcd *hcd) { struct ehci_hcd *ehci = hcd_to_ehci (hcd); u32 temp; + u32 power_okay; int i; if (time_before (jiffies, ehci->next_statechange)) msleep(5); spin_lock_irq (&ehci->lock); + if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) { + spin_unlock_irq(&ehci->lock); + return -ESHUTDOWN; + } /* Ideally and we've got a real resume here, and no port's power * was lost. (For PCI, that means Vaux was maintained.) But we @@ -120,8 +210,9 @@ static int ehci_bus_resume (struct usb_hcd *hcd) * the last user of the controller, not reset/pm hardware keeping * state we gave to it. */ - temp = ehci_readl(ehci, &ehci->regs->intr_enable); - ehci_dbg(ehci, "resume root hub%s\n", temp ? "" : " after power loss"); + power_okay = ehci_readl(ehci, &ehci->regs->intr_enable); + ehci_dbg(ehci, "resume root hub%s\n", + power_okay ? "" : " after power loss"); /* at least some APM implementations will try to deliver * IRQs right away, so delay them until we're ready. @@ -184,6 +275,9 @@ static int ehci_bus_resume (struct usb_hcd *hcd) ehci_writel(ehci, INTR_MASK, &ehci->regs->intr_enable); spin_unlock_irq (&ehci->lock); + + if (!power_okay) + ehci_handover_companion_ports(ehci); return 0; } @@ -448,7 +542,8 @@ static int ehci_hub_control ( ) { struct ehci_hcd *ehci = hcd_to_ehci (hcd); int ports = HCS_N_PORTS (ehci->hcs_params); - u32 __iomem *status_reg = &ehci->regs->port_status[wIndex - 1]; + u32 __iomem *status_reg = &ehci->regs->port_status[ + (wIndex & 0xff) - 1]; u32 temp, status; unsigned long flags; int retval = 0; @@ -556,9 +651,24 @@ static int ehci_hub_control ( status |= 1 << USB_PORT_FEAT_C_CONNECTION; if (temp & PORT_PEC) status |= 1 << USB_PORT_FEAT_C_ENABLE; - if ((temp & PORT_OCC) && !ignore_oc) + + if ((temp & PORT_OCC) && !ignore_oc){ status |= 1 << USB_PORT_FEAT_C_OVER_CURRENT; + /* + * Hubs should disable port power on over-current. + * However, not all EHCI implementations do this + * automatically, even if they _do_ support per-port + * power switching; they're allowed to just limit the + * current. khubd will turn the power back on. + */ + if (HCS_PPC (ehci->hcs_params)){ + ehci_writel(ehci, + temp & ~(PORT_RWC_BITS | PORT_POWER), + status_reg); + } + } + /* whoever resumes must GetPortStatus to complete it!! */ if (temp & PORT_RESUME) { diff --git a/drivers/usb/host/ehci-mem.c b/drivers/usb/host/ehci-mem.c index a8ba2e1497a4..0431397836f6 100644 --- a/drivers/usb/host/ehci-mem.c +++ b/drivers/usb/host/ehci-mem.c @@ -27,7 +27,7 @@ * need to use dma_pool or dma_alloc_coherent * - driver buffers, read/written by HC ... single shot DMA mapped * - * There's also PCI "register" data, which is memory mapped. + * There's also "register" data (e.g. PCI or SOC), which is memory mapped. * No memory seen by this driver is pageable. */ @@ -35,13 +35,14 @@ /* Allocate the key transfer structures from the previously allocated pool */ -static inline void ehci_qtd_init (struct ehci_qtd *qtd, dma_addr_t dma) +static inline void ehci_qtd_init(struct ehci_hcd *ehci, struct ehci_qtd *qtd, + dma_addr_t dma) { memset (qtd, 0, sizeof *qtd); qtd->qtd_dma = dma; qtd->hw_token = cpu_to_le32 (QTD_STS_HALT); - qtd->hw_next = EHCI_LIST_END; - qtd->hw_alt_next = EHCI_LIST_END; + qtd->hw_next = EHCI_LIST_END(ehci); + qtd->hw_alt_next = EHCI_LIST_END(ehci); INIT_LIST_HEAD (&qtd->qtd_list); } @@ -52,7 +53,7 @@ static struct ehci_qtd *ehci_qtd_alloc (struct ehci_hcd *ehci, gfp_t flags) qtd = dma_pool_alloc (ehci->qtd_pool, flags, &dma); if (qtd != NULL) { - ehci_qtd_init (qtd, dma); + ehci_qtd_init(ehci, qtd, dma); } return qtd; } @@ -63,9 +64,8 @@ static inline void ehci_qtd_free (struct ehci_hcd *ehci, struct ehci_qtd *qtd) } -static void qh_destroy (struct kref *kref) +static void qh_destroy(struct ehci_qh *qh) { - struct ehci_qh *qh = container_of(kref, struct ehci_qh, kref); struct ehci_hcd *ehci = qh->ehci; /* clean qtds first, and know this is not linked */ @@ -89,7 +89,7 @@ static struct ehci_qh *ehci_qh_alloc (struct ehci_hcd *ehci, gfp_t flags) return qh; memset (qh, 0, sizeof *qh); - kref_init(&qh->kref); + qh->refcount = 1; qh->ehci = ehci; qh->qh_dma = dma; // INIT_LIST_HEAD (&qh->qh_list); @@ -108,13 +108,15 @@ static struct ehci_qh *ehci_qh_alloc (struct ehci_hcd *ehci, gfp_t flags) /* to share a qh (cpu threads, or hc) */ static inline struct ehci_qh *qh_get (struct ehci_qh *qh) { - kref_get(&qh->kref); + WARN_ON(!qh->refcount); + qh->refcount++; return qh; } static inline void qh_put (struct ehci_qh *qh) { - kref_put(&qh->kref, qh_destroy); + if (!--qh->refcount) + qh_destroy(qh); } /*-------------------------------------------------------------------------*/ @@ -217,7 +219,7 @@ static int ehci_mem_init (struct ehci_hcd *ehci, gfp_t flags) goto fail; } for (i = 0; i < ehci->periodic_size; i++) - ehci->periodic [i] = EHCI_LIST_END; + ehci->periodic [i] = EHCI_LIST_END(ehci); /* software shadow of hardware table */ ehci->pshadow = kcalloc(ehci->periodic_size, sizeof(void *), flags); diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index 12edc723ec73..a7816e392a85 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -149,8 +149,7 @@ static int ehci_pci_setup(struct usb_hcd *hcd) * fixed in newer silicon. */ case 0x0068: - pci_read_config_dword(pdev, PCI_REVISION_ID, &temp); - if ((temp & 0xff) < 0xa4) + if (pdev->revision < 0xa4) ehci->no_selective_suspend = 1; break; } @@ -313,13 +312,14 @@ static int ehci_pci_resume(struct usb_hcd *hcd) ehci_work(ehci); spin_unlock_irq(&ehci->lock); - /* here we "know" root ports should always stay powered */ - ehci_port_power(ehci, 1); - ehci_writel(ehci, ehci->command, &ehci->regs->command); ehci_writel(ehci, FLAG_CF, &ehci->regs->configured_flag); ehci_readl(ehci, &ehci->regs->command); /* unblock posted writes */ + /* here we "know" root ports should always stay powered */ + ehci_port_power(ehci, 1); + ehci_handover_companion_ports(ehci); + hcd->state = HC_STATE_SUSPENDED; return 0; } diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c index 37b83ba09969..829fe649a981 100644 --- a/drivers/usb/host/ehci-ps3.c +++ b/drivers/usb/host/ehci-ps3.c @@ -18,6 +18,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#include <asm/firmware.h> #include <asm/ps3.h> static int ps3_ehci_hc_reset(struct usb_hcd *hcd) @@ -73,7 +74,7 @@ static const struct hc_driver ps3_ehci_hc_driver = { #endif }; -static int ps3_ehci_sb_probe(struct ps3_system_bus_device *dev) +static int ps3_ehci_probe(struct ps3_system_bus_device *dev) { int result; struct usb_hcd *hcd; @@ -85,13 +86,30 @@ static int ps3_ehci_sb_probe(struct ps3_system_bus_device *dev) goto fail_start; } + result = ps3_open_hv_device(dev); + + if (result) { + dev_dbg(&dev->core, "%s:%d: ps3_open_hv_device failed\n", + __func__, __LINE__); + goto fail_open; + } + + result = ps3_dma_region_create(dev->d_region); + + if (result) { + dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: " + "(%d)\n", __func__, __LINE__, result); + BUG_ON("check region type"); + goto fail_dma_region; + } + result = ps3_mmio_region_create(dev->m_region); if (result) { dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n", __func__, __LINE__); result = -EPERM; - goto fail_mmio; + goto fail_mmio_region; } dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__, @@ -120,6 +138,11 @@ static int ps3_ehci_sb_probe(struct ps3_system_bus_device *dev) hcd->rsrc_start = dev->m_region->lpar_addr; hcd->rsrc_len = dev->m_region->len; + + if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) + dev_dbg(&dev->core, "%s:%d: request_mem_region failed\n", + __func__, __LINE__); + hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len); if (!hcd->regs) { @@ -153,34 +176,73 @@ static int ps3_ehci_sb_probe(struct ps3_system_bus_device *dev) fail_add_hcd: iounmap(hcd->regs); fail_ioremap: + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); fail_create_hcd: ps3_io_irq_destroy(virq); fail_irq: ps3_free_mmio_region(dev->m_region); -fail_mmio: +fail_mmio_region: + ps3_dma_region_free(dev->d_region); +fail_dma_region: + ps3_close_hv_device(dev); +fail_open: fail_start: return result; } -static int ps3_ehci_sb_remove(struct ps3_system_bus_device *dev) +static int ps3_ehci_remove(struct ps3_system_bus_device *dev) { + unsigned int tmp; struct usb_hcd *hcd = (struct usb_hcd *)ps3_system_bus_get_driver_data(dev); - usb_put_hcd(hcd); + BUG_ON(!hcd); + + dev_dbg(&dev->core, "%s:%d: regs %p\n", __func__, __LINE__, hcd->regs); + dev_dbg(&dev->core, "%s:%d: irq %u\n", __func__, __LINE__, hcd->irq); + + tmp = hcd->irq; + + usb_remove_hcd(hcd); + ps3_system_bus_set_driver_data(dev, NULL); + BUG_ON(!hcd->regs); + iounmap(hcd->regs); + + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + usb_put_hcd(hcd); + + ps3_io_irq_destroy(tmp); + ps3_free_mmio_region(dev->m_region); + + ps3_dma_region_free(dev->d_region); + ps3_close_hv_device(dev); + return 0; } -MODULE_ALIAS("ps3-ehci"); +static int ps3_ehci_driver_register(struct ps3_system_bus_driver *drv) +{ + return firmware_has_feature(FW_FEATURE_PS3_LV1) + ? ps3_system_bus_driver_register(drv) + : 0; +} + +static void ps3_ehci_driver_unregister(struct ps3_system_bus_driver *drv) +{ + if (firmware_has_feature(FW_FEATURE_PS3_LV1)) + ps3_system_bus_driver_unregister(drv); +} + +MODULE_ALIAS(PS3_MODULE_ALIAS_EHCI); -static struct ps3_system_bus_driver ps3_ehci_sb_driver = { +static struct ps3_system_bus_driver ps3_ehci_driver = { + .core.name = "ps3-ehci-driver", + .core.owner = THIS_MODULE, .match_id = PS3_MATCH_ID_EHCI, - .core = { - .name = "ps3-ehci-driver", - }, - .probe = ps3_ehci_sb_probe, - .remove = ps3_ehci_sb_remove, + .probe = ps3_ehci_probe, + .remove = ps3_ehci_remove, + .shutdown = ps3_ehci_remove, }; diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index e7fbbd00e7cd..140bfa423e07 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -43,15 +43,15 @@ /* fill a qtd, returning how much of the buffer we were able to queue up */ static int -qtd_fill (struct ehci_qtd *qtd, dma_addr_t buf, size_t len, - int token, int maxpacket) +qtd_fill(struct ehci_hcd *ehci, struct ehci_qtd *qtd, dma_addr_t buf, + size_t len, int token, int maxpacket) { int i, count; u64 addr = buf; /* one buffer entry per 4K ... first might be short or unaligned */ - qtd->hw_buf [0] = cpu_to_le32 ((u32)addr); - qtd->hw_buf_hi [0] = cpu_to_le32 ((u32)(addr >> 32)); + qtd->hw_buf[0] = cpu_to_hc32(ehci, (u32)addr); + qtd->hw_buf_hi[0] = cpu_to_hc32(ehci, (u32)(addr >> 32)); count = 0x1000 - (buf & 0x0fff); /* rest of that page */ if (likely (len < count)) /* ... iff needed */ count = len; @@ -62,8 +62,9 @@ qtd_fill (struct ehci_qtd *qtd, dma_addr_t buf, size_t len, /* per-qtd limit: from 16K to 20K (best alignment) */ for (i = 1; count < len && i < 5; i++) { addr = buf; - qtd->hw_buf [i] = cpu_to_le32 ((u32)addr); - qtd->hw_buf_hi [i] = cpu_to_le32 ((u32)(addr >> 32)); + qtd->hw_buf[i] = cpu_to_hc32(ehci, (u32)addr); + qtd->hw_buf_hi[i] = cpu_to_hc32(ehci, + (u32)(addr >> 32)); buf += 0x1000; if ((count + 0x1000) < len) count += 0x1000; @@ -75,7 +76,7 @@ qtd_fill (struct ehci_qtd *qtd, dma_addr_t buf, size_t len, if (count != len) count -= (count % maxpacket); } - qtd->hw_token = cpu_to_le32 ((count << 16) | token); + qtd->hw_token = cpu_to_hc32(ehci, (count << 16) | token); qtd->length = count; return count; @@ -89,28 +90,28 @@ qh_update (struct ehci_hcd *ehci, struct ehci_qh *qh, struct ehci_qtd *qtd) /* writes to an active overlay are unsafe */ BUG_ON(qh->qh_state != QH_STATE_IDLE); - qh->hw_qtd_next = QTD_NEXT (qtd->qtd_dma); - qh->hw_alt_next = EHCI_LIST_END; + qh->hw_qtd_next = QTD_NEXT(ehci, qtd->qtd_dma); + qh->hw_alt_next = EHCI_LIST_END(ehci); /* Except for control endpoints, we make hardware maintain data * toggle (like OHCI) ... here (re)initialize the toggle in the QH, * and set the pseudo-toggle in udev. Only usb_clear_halt() will * ever clear it. */ - if (!(qh->hw_info1 & cpu_to_le32(1 << 14))) { + if (!(qh->hw_info1 & cpu_to_hc32(ehci, 1 << 14))) { unsigned is_out, epnum; - is_out = !(qtd->hw_token & cpu_to_le32(1 << 8)); - epnum = (le32_to_cpup(&qh->hw_info1) >> 8) & 0x0f; + is_out = !(qtd->hw_token & cpu_to_hc32(ehci, 1 << 8)); + epnum = (hc32_to_cpup(ehci, &qh->hw_info1) >> 8) & 0x0f; if (unlikely (!usb_gettoggle (qh->dev, epnum, is_out))) { - qh->hw_token &= ~__constant_cpu_to_le32 (QTD_TOGGLE); + qh->hw_token &= ~cpu_to_hc32(ehci, QTD_TOGGLE); usb_settoggle (qh->dev, epnum, is_out, 1); } } /* HC must see latest qtd and qh data before we clear ACTIVE+HALT */ wmb (); - qh->hw_token &= __constant_cpu_to_le32 (QTD_TOGGLE | QTD_STS_PING); + qh->hw_token &= cpu_to_hc32(ehci, QTD_TOGGLE | QTD_STS_PING); } /* if it weren't for a common silicon quirk (writing the dummy into the qh @@ -128,7 +129,7 @@ qh_refresh (struct ehci_hcd *ehci, struct ehci_qh *qh) qtd = list_entry (qh->qtd_list.next, struct ehci_qtd, qtd_list); /* first qtd may already be partially processed */ - if (cpu_to_le32 (qtd->qtd_dma) == qh->hw_current) + if (cpu_to_hc32(ehci, qtd->qtd_dma) == qh->hw_current) qtd = NULL; } @@ -222,7 +223,7 @@ __acquires(ehci->lock) struct ehci_qh *qh = (struct ehci_qh *) urb->hcpriv; /* S-mask in a QH means it's an interrupt urb */ - if ((qh->hw_info2 & __constant_cpu_to_le32 (QH_SMASK)) != 0) { + if ((qh->hw_info2 & cpu_to_hc32(ehci, QH_SMASK)) != 0) { /* ... update hc-wide periodic stats (for usbfs) */ ehci_to_hcd(ehci)->self.bandwidth_int_reqs--; @@ -277,7 +278,6 @@ static int qh_schedule (struct ehci_hcd *ehci, struct ehci_qh *qh); * Chases up to qh->hw_current. Returns number of completions called, * indicating how much "real" work we did. */ -#define HALT_BIT __constant_cpu_to_le32(QTD_STS_HALT) static unsigned qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) { @@ -287,6 +287,7 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) unsigned count = 0; int do_status = 0; u8 state; + u32 halt = HALT_BIT(ehci); if (unlikely (list_empty (&qh->qtd_list))) return count; @@ -330,7 +331,7 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) /* hardware copies qtd out of qh overlay */ rmb (); - token = le32_to_cpu (qtd->hw_token); + token = hc32_to_cpu(ehci, qtd->hw_token); /* always clean up qtds the hc de-activated */ if ((token & QTD_STS_ACTIVE) == 0) { @@ -342,7 +343,8 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) * that silicon quirk can kick in with this dummy too. */ } else if (IS_SHORT_READ (token) - && !(qtd->hw_alt_next & EHCI_LIST_END)) { + && !(qtd->hw_alt_next + & EHCI_LIST_END(ehci))) { stopped = 1; goto halt; } @@ -374,17 +376,17 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) /* token in overlay may be most current */ if (state == QH_STATE_IDLE - && cpu_to_le32 (qtd->qtd_dma) + && cpu_to_hc32(ehci, qtd->qtd_dma) == qh->hw_current) - token = le32_to_cpu (qh->hw_token); + token = hc32_to_cpu(ehci, qh->hw_token); /* force halt for unlinked or blocked qh, so we'll * patch the qh later and so that completions can't * activate it while we "know" it's stopped. */ - if ((HALT_BIT & qh->hw_token) == 0) { + if ((halt & qh->hw_token) == 0) { halt: - qh->hw_token |= HALT_BIT; + qh->hw_token |= halt; wmb (); } } @@ -419,7 +421,7 @@ halt: * it after fault cleanup, or recovering from silicon wrongly * overlaying the dummy qtd (which reduces DMA chatter). */ - if (stopped != 0 || qh->hw_qtd_next == EHCI_LIST_END) { + if (stopped != 0 || qh->hw_qtd_next == EHCI_LIST_END(ehci)) { switch (state) { case QH_STATE_IDLE: qh_refresh(ehci, qh); @@ -428,7 +430,7 @@ halt: /* should be rare for periodic transfers, * except maybe high bandwidth ... */ - if ((__constant_cpu_to_le32 (QH_SMASK) + if ((cpu_to_hc32(ehci, QH_SMASK) & qh->hw_info2) != 0) { intr_deschedule (ehci, qh); (void) qh_schedule (ehci, qh); @@ -502,8 +504,9 @@ qh_urb_transaction ( is_input = usb_pipein (urb->pipe); if (usb_pipecontrol (urb->pipe)) { /* SETUP pid */ - qtd_fill (qtd, urb->setup_dma, sizeof (struct usb_ctrlrequest), - token | (2 /* "setup" */ << 8), 8); + qtd_fill(ehci, qtd, urb->setup_dma, + sizeof (struct usb_ctrlrequest), + token | (2 /* "setup" */ << 8), 8); /* ... and always at least one more pid */ token ^= QTD_TOGGLE; @@ -512,7 +515,7 @@ qh_urb_transaction ( if (unlikely (!qtd)) goto cleanup; qtd->urb = urb; - qtd_prev->hw_next = QTD_NEXT (qtd->qtd_dma); + qtd_prev->hw_next = QTD_NEXT(ehci, qtd->qtd_dma); list_add_tail (&qtd->qtd_list, head); /* for zero length DATA stages, STATUS is always IN */ @@ -539,7 +542,7 @@ qh_urb_transaction ( for (;;) { int this_qtd_len; - this_qtd_len = qtd_fill (qtd, buf, len, token, maxpacket); + this_qtd_len = qtd_fill(ehci, qtd, buf, len, token, maxpacket); len -= this_qtd_len; buf += this_qtd_len; if (is_input) @@ -557,7 +560,7 @@ qh_urb_transaction ( if (unlikely (!qtd)) goto cleanup; qtd->urb = urb; - qtd_prev->hw_next = QTD_NEXT (qtd->qtd_dma); + qtd_prev->hw_next = QTD_NEXT(ehci, qtd->qtd_dma); list_add_tail (&qtd->qtd_list, head); } @@ -566,7 +569,7 @@ qh_urb_transaction ( */ if (likely ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0 || usb_pipecontrol (urb->pipe))) - qtd->hw_alt_next = EHCI_LIST_END; + qtd->hw_alt_next = EHCI_LIST_END(ehci); /* * control requests may need a terminating data "status" ack; @@ -590,17 +593,17 @@ qh_urb_transaction ( if (unlikely (!qtd)) goto cleanup; qtd->urb = urb; - qtd_prev->hw_next = QTD_NEXT (qtd->qtd_dma); + qtd_prev->hw_next = QTD_NEXT(ehci, qtd->qtd_dma); list_add_tail (&qtd->qtd_list, head); /* never any data in such packets */ - qtd_fill (qtd, 0, 0, token, 0); + qtd_fill(ehci, qtd, 0, 0, token, 0); } } /* by default, enable interrupt on urb completion */ if (likely (!(urb->transfer_flags & URB_NO_INTERRUPT))) - qtd->hw_token |= __constant_cpu_to_le32 (QTD_IOC); + qtd->hw_token |= cpu_to_hc32(ehci, QTD_IOC); return head; cleanup: @@ -769,8 +772,8 @@ done: /* init as live, toggle clear, advance to dummy */ qh->qh_state = QH_STATE_IDLE; - qh->hw_info1 = cpu_to_le32 (info1); - qh->hw_info2 = cpu_to_le32 (info2); + qh->hw_info1 = cpu_to_hc32(ehci, info1); + qh->hw_info2 = cpu_to_hc32(ehci, info2); usb_settoggle (urb->dev, usb_pipeendpoint (urb->pipe), !is_input, 1); qh_refresh (ehci, qh); return qh; @@ -782,7 +785,7 @@ done: static void qh_link_async (struct ehci_hcd *ehci, struct ehci_qh *qh) { - __le32 dma = QH_NEXT (qh->qh_dma); + __hc32 dma = QH_NEXT(ehci, qh->qh_dma); struct ehci_qh *head; /* (re)start the async schedule? */ @@ -820,8 +823,6 @@ static void qh_link_async (struct ehci_hcd *ehci, struct ehci_qh *qh) /*-------------------------------------------------------------------------*/ -#define QH_ADDR_MASK __constant_cpu_to_le32(0x7f) - /* * For control/bulk/interrupt, return QH with these TDs appended. * Allocates and initializes the QH if necessary. @@ -837,6 +838,7 @@ static struct ehci_qh *qh_append_tds ( ) { struct ehci_qh *qh = NULL; + u32 qh_addr_mask = cpu_to_hc32(ehci, 0x7f); qh = (struct ehci_qh *) *ptr; if (unlikely (qh == NULL)) { @@ -858,7 +860,7 @@ static struct ehci_qh *qh_append_tds ( /* usb_reset_device() briefly reverts to address 0 */ if (usb_pipedevice (urb->pipe) == 0) - qh->hw_info1 &= ~QH_ADDR_MASK; + qh->hw_info1 &= ~qh_addr_mask; } /* just one way to queue requests: swap with the dummy qtd. @@ -867,7 +869,7 @@ static struct ehci_qh *qh_append_tds ( if (likely (qtd != NULL)) { struct ehci_qtd *dummy; dma_addr_t dma; - __le32 token; + __hc32 token; /* to avoid racing the HC, use the dummy td instead of * the first td of our list (becomes new dummy). both @@ -875,7 +877,7 @@ static struct ehci_qh *qh_append_tds ( * HC is allowed to fetch the old dummy (4.10.2). */ token = qtd->hw_token; - qtd->hw_token = HALT_BIT; + qtd->hw_token = HALT_BIT(ehci); wmb (); dummy = qh->dummy; @@ -887,14 +889,14 @@ static struct ehci_qh *qh_append_tds ( list_add (&dummy->qtd_list, qtd_list); __list_splice (qtd_list, qh->qtd_list.prev); - ehci_qtd_init (qtd, qtd->qtd_dma); + ehci_qtd_init(ehci, qtd, qtd->qtd_dma); qh->dummy = qtd; /* hc must see the new dummy at list end */ dma = qtd->qtd_dma; qtd = list_entry (qh->qtd_list.prev, struct ehci_qtd, qtd_list); - qtd->hw_next = QTD_NEXT (dma); + qtd->hw_next = QTD_NEXT(ehci, dma); /* let the hc process these next qtds */ wmb (); @@ -970,7 +972,7 @@ static void end_unlink_async (struct ehci_hcd *ehci) timer_action_done (ehci, TIMER_IAA_WATCHDOG); - // qh->hw_next = cpu_to_le32 (qh->qh_dma); + // qh->hw_next = cpu_to_hc32(qh->qh_dma); qh->qh_state = QH_STATE_IDLE; qh->qh_next.qh = NULL; qh_put (qh); // refcount from reclaim diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index 7b5ae7111f23..e682f2342ef8 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -44,9 +44,10 @@ static int ehci_get_frame (struct usb_hcd *hcd); * @tag: hardware tag for type of this record */ static union ehci_shadow * -periodic_next_shadow (union ehci_shadow *periodic, __le32 tag) +periodic_next_shadow(struct ehci_hcd *ehci, union ehci_shadow *periodic, + __hc32 tag) { - switch (tag) { + switch (hc32_to_cpu(ehci, tag)) { case Q_TYPE_QH: return &periodic->qh->qh_next; case Q_TYPE_FSTN: @@ -62,13 +63,14 @@ periodic_next_shadow (union ehci_shadow *periodic, __le32 tag) /* caller must hold ehci->lock */ static void periodic_unlink (struct ehci_hcd *ehci, unsigned frame, void *ptr) { - union ehci_shadow *prev_p = &ehci->pshadow [frame]; - __le32 *hw_p = &ehci->periodic [frame]; + union ehci_shadow *prev_p = &ehci->pshadow[frame]; + __hc32 *hw_p = &ehci->periodic[frame]; union ehci_shadow here = *prev_p; /* find predecessor of "ptr"; hw and shadow lists are in sync */ while (here.ptr && here.ptr != ptr) { - prev_p = periodic_next_shadow (prev_p, Q_NEXT_TYPE (*hw_p)); + prev_p = periodic_next_shadow(ehci, prev_p, + Q_NEXT_TYPE(ehci, *hw_p)); hw_p = here.hw_next; here = *prev_p; } @@ -79,7 +81,8 @@ static void periodic_unlink (struct ehci_hcd *ehci, unsigned frame, void *ptr) /* update shadow and hardware lists ... the old "next" pointers * from ptr may still be in use, the caller updates them. */ - *prev_p = *periodic_next_shadow (&here, Q_NEXT_TYPE (*hw_p)); + *prev_p = *periodic_next_shadow(ehci, &here, + Q_NEXT_TYPE(ehci, *hw_p)); *hw_p = *here.hw_next; } @@ -87,18 +90,19 @@ static void periodic_unlink (struct ehci_hcd *ehci, unsigned frame, void *ptr) static unsigned short periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe) { - __le32 *hw_p = &ehci->periodic [frame]; + __hc32 *hw_p = &ehci->periodic [frame]; union ehci_shadow *q = &ehci->pshadow [frame]; unsigned usecs = 0; while (q->ptr) { - switch (Q_NEXT_TYPE (*hw_p)) { + switch (hc32_to_cpu(ehci, Q_NEXT_TYPE(ehci, *hw_p))) { case Q_TYPE_QH: /* is it in the S-mask? */ - if (q->qh->hw_info2 & cpu_to_le32 (1 << uframe)) + if (q->qh->hw_info2 & cpu_to_hc32(ehci, 1 << uframe)) usecs += q->qh->usecs; /* ... or C-mask? */ - if (q->qh->hw_info2 & cpu_to_le32 (1 << (8 + uframe))) + if (q->qh->hw_info2 & cpu_to_hc32(ehci, + 1 << (8 + uframe))) usecs += q->qh->c_usecs; hw_p = &q->qh->hw_next; q = &q->qh->qh_next; @@ -108,7 +112,7 @@ periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe) /* for "save place" FSTNs, count the relevant INTR * bandwidth from the previous frame */ - if (q->fstn->hw_prev != EHCI_LIST_END) { + if (q->fstn->hw_prev != EHCI_LIST_END(ehci)) { ehci_dbg (ehci, "ignoring FSTN cost ...\n"); } hw_p = &q->fstn->hw_next; @@ -121,9 +125,10 @@ periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe) break; case Q_TYPE_SITD: /* is it in the S-mask? (count SPLIT, DATA) */ - if (q->sitd->hw_uframe & cpu_to_le32 (1 << uframe)) { + if (q->sitd->hw_uframe & cpu_to_hc32(ehci, + 1 << uframe)) { if (q->sitd->hw_fullspeed_ep & - __constant_cpu_to_le32 (1<<31)) + cpu_to_hc32(ehci, 1<<31)) usecs += q->sitd->stream->usecs; else /* worst case for OUT start-split */ usecs += HS_USECS_ISO (188); @@ -131,7 +136,7 @@ periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe) /* ... C-mask? (count CSPLIT, DATA) */ if (q->sitd->hw_uframe & - cpu_to_le32 (1 << (8 + uframe))) { + cpu_to_hc32(ehci, 1 << (8 + uframe))) { /* worst case for IN complete-split */ usecs += q->sitd->stream->c_usecs; } @@ -173,9 +178,9 @@ static int same_tt (struct usb_device *dev1, struct usb_device *dev2) * will cause a transfer in "B-frame" uframe 0. "B-frames" lag * "H-frames" by 1 uframe. See the EHCI spec sec 4.5 and figure 4.7. */ -static inline unsigned char tt_start_uframe(struct ehci_hcd *ehci, __le32 mask) +static inline unsigned char tt_start_uframe(struct ehci_hcd *ehci, __hc32 mask) { - unsigned char smask = QH_SMASK & le32_to_cpu(mask); + unsigned char smask = QH_SMASK & hc32_to_cpu(ehci, mask); if (!smask) { ehci_err(ehci, "invalid empty smask!\n"); /* uframe 7 can't have bw so this will indicate failure */ @@ -217,14 +222,14 @@ periodic_tt_usecs ( unsigned short tt_usecs[8] ) { - __le32 *hw_p = &ehci->periodic [frame]; + __hc32 *hw_p = &ehci->periodic [frame]; union ehci_shadow *q = &ehci->pshadow [frame]; unsigned char uf; memset(tt_usecs, 0, 16); while (q->ptr) { - switch (Q_NEXT_TYPE(*hw_p)) { + switch (hc32_to_cpu(ehci, Q_NEXT_TYPE(ehci, *hw_p))) { case Q_TYPE_ITD: hw_p = &q->itd->hw_next; q = &q->itd->itd_next; @@ -247,8 +252,8 @@ periodic_tt_usecs ( continue; // case Q_TYPE_FSTN: default: - ehci_dbg(ehci, - "ignoring periodic frame %d FSTN\n", frame); + ehci_dbg(ehci, "ignoring periodic frame %d FSTN\n", + frame); hw_p = &q->fstn->hw_next; q = &q->fstn->fstn_next; } @@ -368,41 +373,42 @@ static int tt_no_collision ( */ for (; frame < ehci->periodic_size; frame += period) { union ehci_shadow here; - __le32 type; + __hc32 type; here = ehci->pshadow [frame]; - type = Q_NEXT_TYPE (ehci->periodic [frame]); + type = Q_NEXT_TYPE(ehci, ehci->periodic [frame]); while (here.ptr) { - switch (type) { + switch (hc32_to_cpu(ehci, type)) { case Q_TYPE_ITD: - type = Q_NEXT_TYPE (here.itd->hw_next); + type = Q_NEXT_TYPE(ehci, here.itd->hw_next); here = here.itd->itd_next; continue; case Q_TYPE_QH: if (same_tt (dev, here.qh->dev)) { u32 mask; - mask = le32_to_cpu (here.qh->hw_info2); + mask = hc32_to_cpu(ehci, + here.qh->hw_info2); /* "knows" no gap is needed */ mask |= mask >> 8; if (mask & uf_mask) break; } - type = Q_NEXT_TYPE (here.qh->hw_next); + type = Q_NEXT_TYPE(ehci, here.qh->hw_next); here = here.qh->qh_next; continue; case Q_TYPE_SITD: if (same_tt (dev, here.sitd->urb->dev)) { u16 mask; - mask = le32_to_cpu (here.sitd + mask = hc32_to_cpu(ehci, here.sitd ->hw_uframe); /* FIXME assumes no gap for IN! */ mask |= mask >> 8; if (mask & uf_mask) break; } - type = Q_NEXT_TYPE (here.sitd->hw_next); + type = Q_NEXT_TYPE(ehci, here.sitd->hw_next); here = here.sitd->sitd_next; continue; // case Q_TYPE_FSTN: @@ -487,7 +493,7 @@ static int qh_link_periodic (struct ehci_hcd *ehci, struct ehci_qh *qh) dev_dbg (&qh->dev->dev, "link qh%d-%04x/%p start %d [%d/%d us]\n", - period, le32_to_cpup (&qh->hw_info2) & (QH_CMASK | QH_SMASK), + period, hc32_to_cpup(ehci, &qh->hw_info2) & (QH_CMASK | QH_SMASK), qh, qh->start, qh->usecs, qh->c_usecs); /* high bandwidth, or otherwise every microframe */ @@ -495,17 +501,17 @@ static int qh_link_periodic (struct ehci_hcd *ehci, struct ehci_qh *qh) period = 1; for (i = qh->start; i < ehci->periodic_size; i += period) { - union ehci_shadow *prev = &ehci->pshadow [i]; - __le32 *hw_p = &ehci->periodic [i]; + union ehci_shadow *prev = &ehci->pshadow[i]; + __hc32 *hw_p = &ehci->periodic[i]; union ehci_shadow here = *prev; - __le32 type = 0; + __hc32 type = 0; /* skip the iso nodes at list head */ while (here.ptr) { - type = Q_NEXT_TYPE (*hw_p); - if (type == Q_TYPE_QH) + type = Q_NEXT_TYPE(ehci, *hw_p); + if (type == cpu_to_hc32(ehci, Q_TYPE_QH)) break; - prev = periodic_next_shadow (prev, type); + prev = periodic_next_shadow(ehci, prev, type); hw_p = &here.qh->hw_next; here = *prev; } @@ -527,7 +533,7 @@ static int qh_link_periodic (struct ehci_hcd *ehci, struct ehci_qh *qh) qh->hw_next = *hw_p; wmb (); prev->qh = qh; - *hw_p = QH_NEXT (qh->qh_dma); + *hw_p = QH_NEXT (ehci, qh->qh_dma); } } qh->qh_state = QH_STATE_LINKED; @@ -555,7 +561,7 @@ static void qh_unlink_periodic (struct ehci_hcd *ehci, struct ehci_qh *qh) // and this qh is active in the current uframe // (and overlay token SplitXstate is false?) // THEN - // qh->hw_info1 |= __constant_cpu_to_le32 (1 << 7 /* "ignore" */); + // qh->hw_info1 |= __constant_cpu_to_hc32(1 << 7 /* "ignore" */); /* high bandwidth, or otherwise part of every microframe */ if ((period = qh->period) == 0) @@ -572,7 +578,7 @@ static void qh_unlink_periodic (struct ehci_hcd *ehci, struct ehci_qh *qh) dev_dbg (&qh->dev->dev, "unlink qh%d-%04x/%p start %d [%d/%d us]\n", qh->period, - le32_to_cpup (&qh->hw_info2) & (QH_CMASK | QH_SMASK), + hc32_to_cpup(ehci, &qh->hw_info2) & (QH_CMASK | QH_SMASK), qh, qh->start, qh->usecs, qh->c_usecs); /* qh->qh_next still "live" to HC */ @@ -598,7 +604,7 @@ static void intr_deschedule (struct ehci_hcd *ehci, struct ehci_qh *qh) * active high speed queues may need bigger delays... */ if (list_empty (&qh->qtd_list) - || (__constant_cpu_to_le32 (QH_CMASK) + || (cpu_to_hc32(ehci, QH_CMASK) & qh->hw_info2) != 0) wait = 2; else @@ -606,7 +612,7 @@ static void intr_deschedule (struct ehci_hcd *ehci, struct ehci_qh *qh) udelay (wait); qh->qh_state = QH_STATE_IDLE; - qh->hw_next = EHCI_LIST_END; + qh->hw_next = EHCI_LIST_END(ehci); wmb (); } @@ -663,7 +669,7 @@ static int check_intr_schedule ( unsigned frame, unsigned uframe, const struct ehci_qh *qh, - __le32 *c_maskp + __hc32 *c_maskp ) { int retval = -ENOSPC; @@ -695,7 +701,7 @@ static int check_intr_schedule ( retval = 0; - *c_maskp = cpu_to_le32 (mask << 8); + *c_maskp = cpu_to_hc32(ehci, mask << 8); } #else /* Make sure this tt's buffer is also available for CSPLITs. @@ -706,7 +712,7 @@ static int check_intr_schedule ( * one smart pass... */ mask = 0x03 << (uframe + qh->gap_uf); - *c_maskp = cpu_to_le32 (mask << 8); + *c_maskp = cpu_to_hc32(ehci, mask << 8); mask |= 1 << uframe; if (tt_no_collision (ehci, qh->period, qh->dev, frame, mask)) { @@ -726,20 +732,20 @@ done: /* "first fit" scheduling policy used the first time through, * or when the previous schedule slot can't be re-used. */ -static int qh_schedule (struct ehci_hcd *ehci, struct ehci_qh *qh) +static int qh_schedule(struct ehci_hcd *ehci, struct ehci_qh *qh) { int status; unsigned uframe; - __le32 c_mask; + __hc32 c_mask; unsigned frame; /* 0..(qh->period - 1), or NO_FRAME */ qh_refresh(ehci, qh); - qh->hw_next = EHCI_LIST_END; + qh->hw_next = EHCI_LIST_END(ehci); frame = qh->start; /* reuse the previous schedule slots, if we can */ if (frame < qh->period) { - uframe = ffs (le32_to_cpup (&qh->hw_info2) & QH_SMASK); + uframe = ffs(hc32_to_cpup(ehci, &qh->hw_info2) & QH_SMASK); status = check_intr_schedule (ehci, frame, --uframe, qh, &c_mask); } else { @@ -775,10 +781,10 @@ static int qh_schedule (struct ehci_hcd *ehci, struct ehci_qh *qh) qh->start = frame; /* reset S-frame and (maybe) C-frame masks */ - qh->hw_info2 &= __constant_cpu_to_le32(~(QH_CMASK | QH_SMASK)); + qh->hw_info2 &= cpu_to_hc32(ehci, ~(QH_CMASK | QH_SMASK)); qh->hw_info2 |= qh->period - ? cpu_to_le32 (1 << uframe) - : __constant_cpu_to_le32 (QH_SMASK); + ? cpu_to_hc32(ehci, 1 << uframe) + : cpu_to_hc32(ehci, QH_SMASK); qh->hw_info2 |= c_mask; } else ehci_dbg (ehci, "reused qh %p schedule\n", qh); @@ -808,7 +814,7 @@ static int intr_submit ( spin_lock_irqsave (&ehci->lock, flags); if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE, - &ehci_to_hcd(ehci)->flags))) { + &ehci_to_hcd(ehci)->flags))) { status = -ESHUTDOWN; goto done; } @@ -898,9 +904,9 @@ iso_stream_init ( buf1 |= maxp; maxp *= multi; - stream->buf0 = cpu_to_le32 ((epnum << 8) | dev->devnum); - stream->buf1 = cpu_to_le32 (buf1); - stream->buf2 = cpu_to_le32 (multi); + stream->buf0 = cpu_to_hc32(ehci, (epnum << 8) | dev->devnum); + stream->buf1 = cpu_to_hc32(ehci, buf1); + stream->buf2 = cpu_to_hc32(ehci, multi); /* usbfs wants to report the average usecs per frame tied up * when transfers on this endpoint are scheduled ... @@ -943,7 +949,7 @@ iso_stream_init ( bandwidth /= 1 << (interval + 2); /* stream->splits gets created from raw_mask later */ - stream->address = cpu_to_le32 (addr); + stream->address = cpu_to_hc32(ehci, addr); } stream->bandwidth = bandwidth; @@ -1077,7 +1083,8 @@ iso_sched_alloc (unsigned packets, gfp_t mem_flags) } static inline void -itd_sched_init ( +itd_sched_init( + struct ehci_hcd *ehci, struct ehci_iso_sched *iso_sched, struct ehci_iso_stream *stream, struct urb *urb @@ -1107,7 +1114,7 @@ itd_sched_init ( && !(urb->transfer_flags & URB_NO_INTERRUPT)) trans |= EHCI_ITD_IOC; trans |= length << 16; - uframe->transaction = cpu_to_le32 (trans); + uframe->transaction = cpu_to_hc32(ehci, trans); /* might need to cross a buffer page within a uframe */ uframe->bufp = (buf & ~(u64)0x0fff); @@ -1149,7 +1156,7 @@ itd_urb_transaction ( if (unlikely (sched == NULL)) return -ENOMEM; - itd_sched_init (sched, stream, urb); + itd_sched_init(ehci, sched, stream, urb); if (urb->interval < 8) num_itds = 1 + (sched->span + 7) / 8; @@ -1167,7 +1174,7 @@ itd_urb_transaction ( /* prefer previously-allocated itds */ if (likely (!list_empty(&stream->free_list))) { itd = list_entry (stream->free_list.prev, - struct ehci_itd, itd_list); + struct ehci_itd, itd_list); list_del (&itd->itd_list); itd_dma = itd->itd_dma; } else @@ -1294,7 +1301,7 @@ sitd_slot_ok ( uframe += period_uframes; } while (uframe < mod); - stream->splits = cpu_to_le32(stream->raw_mask << (uframe & 7)); + stream->splits = cpu_to_hc32(ehci, stream->raw_mask << (uframe & 7)); return 1; } @@ -1415,12 +1422,13 @@ ready: /*-------------------------------------------------------------------------*/ static inline void -itd_init (struct ehci_iso_stream *stream, struct ehci_itd *itd) +itd_init(struct ehci_hcd *ehci, struct ehci_iso_stream *stream, + struct ehci_itd *itd) { int i; /* it's been recently zeroed */ - itd->hw_next = EHCI_LIST_END; + itd->hw_next = EHCI_LIST_END(ehci); itd->hw_bufp [0] = stream->buf0; itd->hw_bufp [1] = stream->buf1; itd->hw_bufp [2] = stream->buf2; @@ -1432,7 +1440,8 @@ itd_init (struct ehci_iso_stream *stream, struct ehci_itd *itd) } static inline void -itd_patch ( +itd_patch( + struct ehci_hcd *ehci, struct ehci_itd *itd, struct ehci_iso_sched *iso_sched, unsigned index, @@ -1447,17 +1456,18 @@ itd_patch ( uframe &= 0x07; itd->index [uframe] = index; - itd->hw_transaction [uframe] = uf->transaction; - itd->hw_transaction [uframe] |= cpu_to_le32 (pg << 12); - itd->hw_bufp [pg] |= cpu_to_le32 (uf->bufp & ~(u32)0); - itd->hw_bufp_hi [pg] |= cpu_to_le32 ((u32)(uf->bufp >> 32)); + itd->hw_transaction[uframe] = uf->transaction; + itd->hw_transaction[uframe] |= cpu_to_hc32(ehci, pg << 12); + itd->hw_bufp[pg] |= cpu_to_hc32(ehci, uf->bufp & ~(u32)0); + itd->hw_bufp_hi[pg] |= cpu_to_hc32(ehci, (u32)(uf->bufp >> 32)); /* iso_frame_desc[].offset must be strictly increasing */ if (unlikely (uf->cross)) { u64 bufp = uf->bufp + 4096; + itd->pg = ++pg; - itd->hw_bufp [pg] |= cpu_to_le32 (bufp & ~(u32)0); - itd->hw_bufp_hi [pg] |= cpu_to_le32 ((u32)(bufp >> 32)); + itd->hw_bufp[pg] |= cpu_to_hc32(ehci, bufp & ~(u32)0); + itd->hw_bufp_hi[pg] |= cpu_to_hc32(ehci, (u32)(bufp >> 32)); } } @@ -1470,7 +1480,7 @@ itd_link (struct ehci_hcd *ehci, unsigned frame, struct ehci_itd *itd) ehci->pshadow [frame].itd = itd; itd->frame = frame; wmb (); - ehci->periodic [frame] = cpu_to_le32 (itd->itd_dma) | Q_TYPE_ITD; + ehci->periodic[frame] = cpu_to_hc32(ehci, itd->itd_dma | Q_TYPE_ITD); } /* fit urb's itds into the selected schedule slot; activate as needed */ @@ -1515,14 +1525,14 @@ itd_link_urb ( list_move_tail (&itd->itd_list, &stream->td_list); itd->stream = iso_stream_get (stream); itd->urb = usb_get_urb (urb); - itd_init (stream, itd); + itd_init (ehci, stream, itd); } uframe = next_uframe & 0x07; frame = next_uframe >> 3; itd->usecs [uframe] = stream->usecs; - itd_patch (itd, iso_sched, packet, uframe); + itd_patch(ehci, itd, iso_sched, packet, uframe); next_uframe += stream->interval; stream->depth += stream->interval; @@ -1570,7 +1580,7 @@ itd_complete ( urb_index = itd->index[uframe]; desc = &urb->iso_frame_desc [urb_index]; - t = le32_to_cpup (&itd->hw_transaction [uframe]); + t = hc32_to_cpup(ehci, &itd->hw_transaction [uframe]); itd->hw_transaction [uframe] = 0; stream->depth -= stream->interval; @@ -1700,7 +1710,8 @@ done: */ static inline void -sitd_sched_init ( +sitd_sched_init( + struct ehci_hcd *ehci, struct ehci_iso_sched *iso_sched, struct ehci_iso_stream *stream, struct urb *urb @@ -1729,7 +1740,7 @@ sitd_sched_init ( && !(urb->transfer_flags & URB_NO_INTERRUPT)) trans |= SITD_IOC; trans |= length << 16; - packet->transaction = cpu_to_le32 (trans); + packet->transaction = cpu_to_hc32(ehci, trans); /* might need to cross a buffer page within a td */ packet->bufp = buf; @@ -1765,7 +1776,7 @@ sitd_urb_transaction ( if (iso_sched == NULL) return -ENOMEM; - sitd_sched_init (iso_sched, stream, urb); + sitd_sched_init(ehci, iso_sched, stream, urb); /* allocate/init sITDs */ spin_lock_irqsave (&ehci->lock, flags); @@ -1817,7 +1828,8 @@ sitd_urb_transaction ( /*-------------------------------------------------------------------------*/ static inline void -sitd_patch ( +sitd_patch( + struct ehci_hcd *ehci, struct ehci_iso_stream *stream, struct ehci_sitd *sitd, struct ehci_iso_sched *iso_sched, @@ -1827,20 +1839,20 @@ sitd_patch ( struct ehci_iso_packet *uf = &iso_sched->packet [index]; u64 bufp = uf->bufp; - sitd->hw_next = EHCI_LIST_END; + sitd->hw_next = EHCI_LIST_END(ehci); sitd->hw_fullspeed_ep = stream->address; sitd->hw_uframe = stream->splits; sitd->hw_results = uf->transaction; - sitd->hw_backpointer = EHCI_LIST_END; + sitd->hw_backpointer = EHCI_LIST_END(ehci); bufp = uf->bufp; - sitd->hw_buf [0] = cpu_to_le32 (bufp); - sitd->hw_buf_hi [0] = cpu_to_le32 (bufp >> 32); + sitd->hw_buf[0] = cpu_to_hc32(ehci, bufp); + sitd->hw_buf_hi[0] = cpu_to_hc32(ehci, bufp >> 32); - sitd->hw_buf [1] = cpu_to_le32 (uf->buf1); + sitd->hw_buf[1] = cpu_to_hc32(ehci, uf->buf1); if (uf->cross) bufp += 4096; - sitd->hw_buf_hi [1] = cpu_to_le32 (bufp >> 32); + sitd->hw_buf_hi[1] = cpu_to_hc32(ehci, bufp >> 32); sitd->index = index; } @@ -1853,7 +1865,7 @@ sitd_link (struct ehci_hcd *ehci, unsigned frame, struct ehci_sitd *sitd) ehci->pshadow [frame].sitd = sitd; sitd->frame = frame; wmb (); - ehci->periodic [frame] = cpu_to_le32 (sitd->sitd_dma) | Q_TYPE_SITD; + ehci->periodic[frame] = cpu_to_hc32(ehci, sitd->sitd_dma | Q_TYPE_SITD); } /* fit urb's sitds into the selected schedule slot; activate as needed */ @@ -1881,7 +1893,7 @@ sitd_link_urb ( urb->dev->devpath, stream->bEndpointAddress & 0x0f, (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out", (next_uframe >> 3) % ehci->periodic_size, - stream->interval, le32_to_cpu (stream->splits)); + stream->interval, hc32_to_cpu(ehci, stream->splits)); stream->start = jiffies; } ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs++; @@ -1902,7 +1914,7 @@ sitd_link_urb ( sitd->stream = iso_stream_get (stream); sitd->urb = usb_get_urb (urb); - sitd_patch (stream, sitd, sched, packet); + sitd_patch(ehci, stream, sitd, sched, packet); sitd_link (ehci, (next_uframe >> 3) % ehci->periodic_size, sitd); @@ -1940,7 +1952,7 @@ sitd_complete ( urb_index = sitd->index; desc = &urb->iso_frame_desc [urb_index]; - t = le32_to_cpup (&sitd->hw_results); + t = hc32_to_cpup(ehci, &sitd->hw_results); /* report transfer status */ if (t & SITD_ERRS) { @@ -2095,7 +2107,7 @@ scan_periodic (struct ehci_hcd *ehci) for (;;) { union ehci_shadow q, *q_p; - __le32 type, *hw_p; + __hc32 type, *hw_p; unsigned uframes; /* don't scan past the live uframe */ @@ -2113,7 +2125,7 @@ restart: q_p = &ehci->pshadow [frame]; hw_p = &ehci->periodic [frame]; q.ptr = q_p->ptr; - type = Q_NEXT_TYPE (*hw_p); + type = Q_NEXT_TYPE(ehci, *hw_p); modified = 0; while (q.ptr != NULL) { @@ -2122,11 +2134,11 @@ restart: int live; live = HC_IS_RUNNING (ehci_to_hcd(ehci)->state); - switch (type) { + switch (hc32_to_cpu(ehci, type)) { case Q_TYPE_QH: /* handle any completions */ temp.qh = qh_get (q.qh); - type = Q_NEXT_TYPE (q.qh->hw_next); + type = Q_NEXT_TYPE(ehci, q.qh->hw_next); q = q.qh->qh_next; modified = qh_completions (ehci, temp.qh); if (unlikely (list_empty (&temp.qh->qtd_list))) @@ -2137,10 +2149,10 @@ restart: /* for "save place" FSTNs, look at QH entries * in the previous frame for completions. */ - if (q.fstn->hw_prev != EHCI_LIST_END) { + if (q.fstn->hw_prev != EHCI_LIST_END(ehci)) { dbg ("ignoring completions from FSTNs"); } - type = Q_NEXT_TYPE (q.fstn->hw_next); + type = Q_NEXT_TYPE(ehci, q.fstn->hw_next); q = q.fstn->fstn_next; break; case Q_TYPE_ITD: @@ -2148,11 +2160,12 @@ restart: rmb (); for (uf = live ? uframes : 8; uf < 8; uf++) { if (0 == (q.itd->hw_transaction [uf] - & ITD_ACTIVE)) + & ITD_ACTIVE(ehci))) continue; q_p = &q.itd->itd_next; hw_p = &q.itd->hw_next; - type = Q_NEXT_TYPE (q.itd->hw_next); + type = Q_NEXT_TYPE(ehci, + q.itd->hw_next); q = *q_p; break; } @@ -2164,23 +2177,24 @@ restart: */ *q_p = q.itd->itd_next; *hw_p = q.itd->hw_next; - type = Q_NEXT_TYPE (q.itd->hw_next); + type = Q_NEXT_TYPE(ehci, q.itd->hw_next); wmb(); modified = itd_complete (ehci, q.itd); q = *q_p; break; case Q_TYPE_SITD: - if ((q.sitd->hw_results & SITD_ACTIVE) + if ((q.sitd->hw_results & SITD_ACTIVE(ehci)) && live) { q_p = &q.sitd->sitd_next; hw_p = &q.sitd->hw_next; - type = Q_NEXT_TYPE (q.sitd->hw_next); + type = Q_NEXT_TYPE(ehci, + q.sitd->hw_next); q = *q_p; break; } *q_p = q.sitd->sitd_next; *hw_p = q.sitd->hw_next; - type = Q_NEXT_TYPE (q.sitd->hw_next); + type = Q_NEXT_TYPE(ehci, q.sitd->hw_next); wmb(); modified = sitd_complete (ehci, q.sitd); q = *q_p; diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 81f4502e0ed6..59e187ef40c6 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -21,6 +21,22 @@ /* definitions used for the EHCI driver */ +/* + * __hc32 and __hc16 are "Host Controller" types, they may be equivalent to + * __leXX (normally) or __beXX (given EHCI_BIG_ENDIAN_DESC), depending on + * the host controller implementation. + * + * To facilitate the strongest possible byte-order checking from "sparse" + * and so on, we use __leXX unless that's not practical. + */ +#ifdef CONFIG_USB_EHCI_BIG_ENDIAN_DESC +typedef __u32 __bitwise __hc32; +typedef __u16 __bitwise __hc16; +#else +#define __hc32 __le32 +#define __hc16 __le16 +#endif + /* statistics can be kept for for tuning/monitoring */ struct ehci_stats { /* irq usage */ @@ -64,7 +80,7 @@ struct ehci_hcd { /* one per controller */ /* periodic schedule support */ #define DEFAULT_I_TDPS 1024 /* some HCs can do less */ unsigned periodic_size; - __le32 *periodic; /* hw periodic table */ + __hc32 *periodic; /* hw periodic table */ dma_addr_t periodic_dma; unsigned i_thresh; /* uframes HC might cache */ @@ -74,11 +90,14 @@ struct ehci_hcd { /* one per controller */ /* per root hub port */ unsigned long reset_done [EHCI_MAX_ROOT_PORTS]; + /* bit vectors (one bit per port) */ unsigned long bus_suspended; /* which ports were already suspended at the start of a bus suspend */ unsigned long companion_ports; /* which ports are dedicated to the companion controller */ + unsigned long owned_ports; /* which ports are + owned by the companion during a bus suspend */ /* per-HC memory pools (could be per-bus, but ...) */ struct dma_pool *qh_pool; /* qh per active urb */ @@ -97,6 +116,7 @@ struct ehci_hcd { /* one per controller */ unsigned no_selective_suspend:1; unsigned has_fsl_port_bug:1; /* FreeScale */ unsigned big_endian_mmio:1; + unsigned big_endian_desc:1; u8 sbrn; /* packed release number */ @@ -283,6 +303,12 @@ struct ehci_regs { } __attribute__ ((packed)); #define USBMODE 0x68 /* USB Device mode */ +#define USBMODE_SDIS (1<<3) /* Stream disable */ +#define USBMODE_BE (1<<2) /* BE/LE endianness select */ +#define USBMODE_CM_HC (3<<0) /* host controller mode */ +#define USBMODE_CM_IDLE (0<<0) /* idle state */ + +#define USBMODE 0x68 /* USB Device mode */ #define USBMODE_BE (1<<2) /* BE/LE endianness select */ #define USBMODE_CM_HC (3<<0) /* host controller mode */ @@ -313,7 +339,7 @@ struct ehci_dbg_port { /*-------------------------------------------------------------------------*/ -#define QTD_NEXT(dma) cpu_to_le32((u32)dma) +#define QTD_NEXT(ehci, dma) cpu_to_hc32(ehci, (u32)dma) /* * EHCI Specification 0.95 Section 3.5 @@ -325,9 +351,9 @@ struct ehci_dbg_port { */ struct ehci_qtd { /* first part defined by EHCI spec */ - __le32 hw_next; /* see EHCI 3.5.1 */ - __le32 hw_alt_next; /* see EHCI 3.5.2 */ - __le32 hw_token; /* see EHCI 3.5.3 */ + __hc32 hw_next; /* see EHCI 3.5.1 */ + __hc32 hw_alt_next; /* see EHCI 3.5.2 */ + __hc32 hw_token; /* see EHCI 3.5.3 */ #define QTD_TOGGLE (1 << 31) /* data toggle */ #define QTD_LENGTH(tok) (((tok)>>16) & 0x7fff) #define QTD_IOC (1 << 15) /* interrupt on complete */ @@ -341,8 +367,13 @@ struct ehci_qtd { #define QTD_STS_MMF (1 << 2) /* incomplete split transaction */ #define QTD_STS_STS (1 << 1) /* split transaction state */ #define QTD_STS_PING (1 << 0) /* issue PING? */ - __le32 hw_buf [5]; /* see EHCI 3.5.4 */ - __le32 hw_buf_hi [5]; /* Appendix B */ + +#define ACTIVE_BIT(ehci) cpu_to_hc32(ehci, QTD_STS_ACTIVE) +#define HALT_BIT(ehci) cpu_to_hc32(ehci, QTD_STS_HALT) +#define STATUS_BIT(ehci) cpu_to_hc32(ehci, QTD_STS_STS) + + __hc32 hw_buf [5]; /* see EHCI 3.5.4 */ + __hc32 hw_buf_hi [5]; /* Appendix B */ /* the rest is HCD-private */ dma_addr_t qtd_dma; /* qtd address */ @@ -352,26 +383,33 @@ struct ehci_qtd { } __attribute__ ((aligned (32))); /* mask NakCnt+T in qh->hw_alt_next */ -#define QTD_MASK __constant_cpu_to_le32 (~0x1f) +#define QTD_MASK(ehci) cpu_to_hc32 (ehci, ~0x1f) #define IS_SHORT_READ(token) (QTD_LENGTH (token) != 0 && QTD_PID (token) == 1) /*-------------------------------------------------------------------------*/ /* type tag from {qh,itd,sitd,fstn}->hw_next */ -#define Q_NEXT_TYPE(dma) ((dma) & __constant_cpu_to_le32 (3 << 1)) +#define Q_NEXT_TYPE(ehci,dma) ((dma) & cpu_to_hc32(ehci, 3 << 1)) +/* + * Now the following defines are not converted using the + * __constant_cpu_to_le32() macro anymore, since we have to support + * "dynamic" switching between be and le support, so that the driver + * can be used on one system with SoC EHCI controller using big-endian + * descriptors as well as a normal little-endian PCI EHCI controller. + */ /* values for that type tag */ -#define Q_TYPE_ITD __constant_cpu_to_le32 (0 << 1) -#define Q_TYPE_QH __constant_cpu_to_le32 (1 << 1) -#define Q_TYPE_SITD __constant_cpu_to_le32 (2 << 1) -#define Q_TYPE_FSTN __constant_cpu_to_le32 (3 << 1) +#define Q_TYPE_ITD (0 << 1) +#define Q_TYPE_QH (1 << 1) +#define Q_TYPE_SITD (2 << 1) +#define Q_TYPE_FSTN (3 << 1) /* next async queue entry, or pointer to interrupt/periodic QH */ -#define QH_NEXT(dma) (cpu_to_le32(((u32)dma)&~0x01f)|Q_TYPE_QH) +#define QH_NEXT(ehci,dma) (cpu_to_hc32(ehci, (((u32)dma)&~0x01f)|Q_TYPE_QH)) /* for periodic/async schedules and qtd lists, mark end of list */ -#define EHCI_LIST_END __constant_cpu_to_le32(1) /* "null pointer" to hw */ +#define EHCI_LIST_END(ehci) cpu_to_hc32(ehci, 1) /* "null pointer" to hw */ /* * Entries in periodic shadow table are pointers to one of four kinds @@ -386,7 +424,7 @@ union ehci_shadow { struct ehci_itd *itd; /* Q_TYPE_ITD */ struct ehci_sitd *sitd; /* Q_TYPE_SITD */ struct ehci_fstn *fstn; /* Q_TYPE_FSTN */ - __le32 *hw_next; /* (all types) */ + __hc32 *hw_next; /* (all types) */ void *ptr; }; @@ -402,23 +440,23 @@ union ehci_shadow { struct ehci_qh { /* first part defined by EHCI spec */ - __le32 hw_next; /* see EHCI 3.6.1 */ - __le32 hw_info1; /* see EHCI 3.6.2 */ + __hc32 hw_next; /* see EHCI 3.6.1 */ + __hc32 hw_info1; /* see EHCI 3.6.2 */ #define QH_HEAD 0x00008000 - __le32 hw_info2; /* see EHCI 3.6.2 */ + __hc32 hw_info2; /* see EHCI 3.6.2 */ #define QH_SMASK 0x000000ff #define QH_CMASK 0x0000ff00 #define QH_HUBADDR 0x007f0000 #define QH_HUBPORT 0x3f800000 #define QH_MULT 0xc0000000 - __le32 hw_current; /* qtd list - see EHCI 3.6.4 */ + __hc32 hw_current; /* qtd list - see EHCI 3.6.4 */ /* qtd overlay (hardware parts of a struct ehci_qtd) */ - __le32 hw_qtd_next; - __le32 hw_alt_next; - __le32 hw_token; - __le32 hw_buf [5]; - __le32 hw_buf_hi [5]; + __hc32 hw_qtd_next; + __hc32 hw_alt_next; + __hc32 hw_token; + __hc32 hw_buf [5]; + __hc32 hw_buf_hi [5]; /* the rest is HCD-private */ dma_addr_t qh_dma; /* address of qh */ @@ -428,7 +466,14 @@ struct ehci_qh { struct ehci_qh *reclaim; /* next to reclaim */ struct ehci_hcd *ehci; - struct kref kref; + + /* + * Do NOT use atomic operations for QH refcounting. On some CPUs + * (PPC7448 for example), atomic operations cannot be performed on + * memory that is cache-inhibited (i.e. being used for DMA). + * Spinlocks are used to protect all QH fields. + */ + u32 refcount; unsigned stamp; u8 qh_state; @@ -455,7 +500,7 @@ struct ehci_qh { struct ehci_iso_packet { /* These will be copied to iTD when scheduling */ u64 bufp; /* itd->hw_bufp{,_hi}[pg] |= */ - __le32 transaction; /* itd->hw_transaction[i] |= */ + __hc32 transaction; /* itd->hw_transaction[i] |= */ u8 cross; /* buf crosses pages */ /* for full speed OUT splits */ u32 buf1; @@ -477,8 +522,8 @@ struct ehci_iso_sched { */ struct ehci_iso_stream { /* first two fields match QH, but info1 == 0 */ - __le32 hw_next; - __le32 hw_info1; + __hc32 hw_next; + __hc32 hw_info1; u32 refcount; u8 bEndpointAddress; @@ -493,7 +538,7 @@ struct ehci_iso_stream { unsigned long start; /* jiffies */ unsigned long rescheduled; int next_uframe; - __le32 splits; + __hc32 splits; /* the rest is derived from the endpoint descriptor, * trusting urb->interval == f(epdesc->bInterval) and @@ -507,12 +552,12 @@ struct ehci_iso_stream { unsigned bandwidth; /* This is used to initialize iTD's hw_bufp fields */ - __le32 buf0; - __le32 buf1; - __le32 buf2; + __hc32 buf0; + __hc32 buf1; + __hc32 buf2; /* this is used to initialize sITD's tt info */ - __le32 address; + __hc32 address; }; /*-------------------------------------------------------------------------*/ @@ -525,8 +570,8 @@ struct ehci_iso_stream { */ struct ehci_itd { /* first part defined by EHCI spec */ - __le32 hw_next; /* see EHCI 3.3.1 */ - __le32 hw_transaction [8]; /* see EHCI 3.3.2 */ + __hc32 hw_next; /* see EHCI 3.3.1 */ + __hc32 hw_transaction [8]; /* see EHCI 3.3.2 */ #define EHCI_ISOC_ACTIVE (1<<31) /* activate transfer this slot */ #define EHCI_ISOC_BUF_ERR (1<<30) /* Data buffer error */ #define EHCI_ISOC_BABBLE (1<<29) /* babble detected */ @@ -534,10 +579,10 @@ struct ehci_itd { #define EHCI_ITD_LENGTH(tok) (((tok)>>16) & 0x0fff) #define EHCI_ITD_IOC (1 << 15) /* interrupt on complete */ -#define ITD_ACTIVE __constant_cpu_to_le32(EHCI_ISOC_ACTIVE) +#define ITD_ACTIVE(ehci) cpu_to_hc32(ehci, EHCI_ISOC_ACTIVE) - __le32 hw_bufp [7]; /* see EHCI 3.3.3 */ - __le32 hw_bufp_hi [7]; /* Appendix B */ + __hc32 hw_bufp [7]; /* see EHCI 3.3.3 */ + __hc32 hw_bufp_hi [7]; /* Appendix B */ /* the rest is HCD-private */ dma_addr_t itd_dma; /* for this itd */ @@ -564,11 +609,11 @@ struct ehci_itd { */ struct ehci_sitd { /* first part defined by EHCI spec */ - __le32 hw_next; + __hc32 hw_next; /* uses bit field macros above - see EHCI 0.95 Table 3-8 */ - __le32 hw_fullspeed_ep; /* EHCI table 3-9 */ - __le32 hw_uframe; /* EHCI table 3-10 */ - __le32 hw_results; /* EHCI table 3-11 */ + __hc32 hw_fullspeed_ep; /* EHCI table 3-9 */ + __hc32 hw_uframe; /* EHCI table 3-10 */ + __hc32 hw_results; /* EHCI table 3-11 */ #define SITD_IOC (1 << 31) /* interrupt on completion */ #define SITD_PAGE (1 << 30) /* buffer 0/1 */ #define SITD_LENGTH(x) (0x3ff & ((x)>>16)) @@ -580,11 +625,11 @@ struct ehci_sitd { #define SITD_STS_MMF (1 << 2) /* incomplete split transaction */ #define SITD_STS_STS (1 << 1) /* split transaction state */ -#define SITD_ACTIVE __constant_cpu_to_le32(SITD_STS_ACTIVE) +#define SITD_ACTIVE(ehci) cpu_to_hc32(ehci, SITD_STS_ACTIVE) - __le32 hw_buf [2]; /* EHCI table 3-12 */ - __le32 hw_backpointer; /* EHCI table 3-13 */ - __le32 hw_buf_hi [2]; /* Appendix B */ + __hc32 hw_buf [2]; /* EHCI table 3-12 */ + __hc32 hw_backpointer; /* EHCI table 3-13 */ + __hc32 hw_buf_hi [2]; /* Appendix B */ /* the rest is HCD-private */ dma_addr_t sitd_dma; @@ -609,8 +654,8 @@ struct ehci_sitd { * it hits a "restore" FSTN; then it returns to finish other uframe 0/1 work. */ struct ehci_fstn { - __le32 hw_next; /* any periodic q entry */ - __le32 hw_prev; /* qh or EHCI_LIST_END */ + __hc32 hw_next; /* any periodic q entry */ + __hc32 hw_prev; /* qh or EHCI_LIST_END */ /* the rest is HCD-private */ dma_addr_t fstn_dma; @@ -682,8 +727,21 @@ ehci_port_speed(struct ehci_hcd *ehci, unsigned int portsc) #define ehci_big_endian_mmio(e) 0 #endif -static inline unsigned int ehci_readl (const struct ehci_hcd *ehci, - __u32 __iomem * regs) +/* + * Big-endian read/write functions are arch-specific. + * Other arches can be added if/when they're needed. + * + * REVISIT: arch/powerpc now has readl/writel_be, so the + * definition below can die once the 4xx support is + * finally ported over. + */ +#if defined(CONFIG_PPC) +#define readl_be(addr) in_be32((__force unsigned *)addr) +#define writel_be(val, addr) out_be32((__force unsigned *)addr, val) +#endif + +static inline unsigned int ehci_readl(const struct ehci_hcd *ehci, + __u32 __iomem * regs) { #ifdef CONFIG_USB_EHCI_BIG_ENDIAN_MMIO return ehci_big_endian_mmio(ehci) ? @@ -694,8 +752,8 @@ static inline unsigned int ehci_readl (const struct ehci_hcd *ehci, #endif } -static inline void ehci_writel (const struct ehci_hcd *ehci, - const unsigned int val, __u32 __iomem *regs) +static inline void ehci_writel(const struct ehci_hcd *ehci, + const unsigned int val, __u32 __iomem *regs) { #ifdef CONFIG_USB_EHCI_BIG_ENDIAN_MMIO ehci_big_endian_mmio(ehci) ? @@ -708,6 +766,62 @@ static inline void ehci_writel (const struct ehci_hcd *ehci, /*-------------------------------------------------------------------------*/ +/* + * The AMCC 440EPx not only implements its EHCI registers in big-endian + * format, but also its DMA data structures (descriptors). + * + * EHCI controllers accessed through PCI work normally (little-endian + * everywhere), so we won't bother supporting a BE-only mode for now. + */ +#ifdef CONFIG_USB_EHCI_BIG_ENDIAN_DESC +#define ehci_big_endian_desc(e) ((e)->big_endian_desc) + +/* cpu to ehci */ +static inline __hc32 cpu_to_hc32 (const struct ehci_hcd *ehci, const u32 x) +{ + return ehci_big_endian_desc(ehci) + ? (__force __hc32)cpu_to_be32(x) + : (__force __hc32)cpu_to_le32(x); +} + +/* ehci to cpu */ +static inline u32 hc32_to_cpu (const struct ehci_hcd *ehci, const __hc32 x) +{ + return ehci_big_endian_desc(ehci) + ? be32_to_cpu((__force __be32)x) + : le32_to_cpu((__force __le32)x); +} + +static inline u32 hc32_to_cpup (const struct ehci_hcd *ehci, const __hc32 *x) +{ + return ehci_big_endian_desc(ehci) + ? be32_to_cpup((__force __be32 *)x) + : le32_to_cpup((__force __le32 *)x); +} + +#else + +/* cpu to ehci */ +static inline __hc32 cpu_to_hc32 (const struct ehci_hcd *ehci, const u32 x) +{ + return cpu_to_le32(x); +} + +/* ehci to cpu */ +static inline u32 hc32_to_cpu (const struct ehci_hcd *ehci, const __hc32 x) +{ + return le32_to_cpu(x); +} + +static inline u32 hc32_to_cpup (const struct ehci_hcd *ehci, const __hc32 *x) +{ + return le32_to_cpup(x); +} + +#endif + +/*-------------------------------------------------------------------------*/ + #ifndef DEBUG #define STUB_DEBUG_FILES #endif /* DEBUG */ diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index 46873f2534b5..5c851a36de72 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -228,7 +228,6 @@ static void preproc_atl_queue(struct isp116x *isp116x) struct urb, urb_list); ptd = &ep->ptd; len = ep->length; - spin_lock(&urb->lock); ep->data = (unsigned char *)urb->transfer_buffer + urb->actual_length; @@ -264,7 +263,6 @@ static void preproc_atl_queue(struct isp116x *isp116x) | PTD_EP(ep->epnum); ptd->len = PTD_LEN(len) | PTD_DIR(dir); ptd->faddr = PTD_FA(usb_pipedevice(urb->pipe)); - spin_unlock(&urb->lock); if (!ep->active) { ptd->mps |= PTD_LAST_MSK; isp116x->atl_last_dir = dir; @@ -275,6 +273,61 @@ static void preproc_atl_queue(struct isp116x *isp116x) } /* + Take done or failed requests out of schedule. Give back + processed urbs. +*/ +static void finish_request(struct isp116x *isp116x, struct isp116x_ep *ep, + struct urb *urb) +__releases(isp116x->lock) __acquires(isp116x->lock) +{ + unsigned i; + + urb->hcpriv = NULL; + ep->error_count = 0; + + if (usb_pipecontrol(urb->pipe)) + ep->nextpid = USB_PID_SETUP; + + urb_dbg(urb, "Finish"); + + spin_unlock(&isp116x->lock); + usb_hcd_giveback_urb(isp116x_to_hcd(isp116x), urb); + spin_lock(&isp116x->lock); + + /* take idle endpoints out of the schedule */ + if (!list_empty(&ep->hep->urb_list)) + return; + + /* async deschedule */ + if (!list_empty(&ep->schedule)) { + list_del_init(&ep->schedule); + return; + } + + /* periodic deschedule */ + DBG("deschedule qh%d/%p branch %d\n", ep->period, ep, ep->branch); + for (i = ep->branch; i < PERIODIC_SIZE; i += ep->period) { + struct isp116x_ep *temp; + struct isp116x_ep **prev = &isp116x->periodic[i]; + + while (*prev && ((temp = *prev) != ep)) + prev = &temp->next; + if (*prev) + *prev = ep->next; + isp116x->load[i] -= ep->load; + } + ep->branch = PERIODIC_SIZE; + isp116x_to_hcd(isp116x)->self.bandwidth_allocated -= + ep->load / ep->period; + + /* switch irq type? */ + if (!--isp116x->periodic_count) { + isp116x->irqenb &= ~HCuPINT_SOF; + isp116x->irqenb |= HCuPINT_ATL; + } +} + +/* Analyze transfer results, handle partial transfers and errors */ static void postproc_atl_queue(struct isp116x *isp116x) @@ -284,6 +337,7 @@ static void postproc_atl_queue(struct isp116x *isp116x) struct usb_device *udev; struct ptd *ptd; int short_not_ok; + int status; u8 cc; for (ep = isp116x->atl_active; ep; ep = ep->active) { @@ -294,7 +348,7 @@ static void postproc_atl_queue(struct isp116x *isp116x) ptd = &ep->ptd; cc = PTD_GET_CC(ptd); short_not_ok = 1; - spin_lock(&urb->lock); + status = -EINPROGRESS; /* Data underrun is special. For allowed underrun we clear the error and continue as normal. For @@ -302,47 +356,36 @@ static void postproc_atl_queue(struct isp116x *isp116x) immediately while for control transfer, we do a STATUS stage. */ if (cc == TD_DATAUNDERRUN) { - if (!(urb->transfer_flags & URB_SHORT_NOT_OK)) { - DBG("Allowed data underrun\n"); + if (!(urb->transfer_flags & URB_SHORT_NOT_OK) || + usb_pipecontrol(urb->pipe)) { + DBG("Allowed or control data underrun\n"); cc = TD_CC_NOERROR; short_not_ok = 0; } else { ep->error_count = 1; - if (usb_pipecontrol(urb->pipe)) - ep->nextpid = USB_PID_ACK; - else - usb_settoggle(udev, ep->epnum, - ep->nextpid == - USB_PID_OUT, - PTD_GET_TOGGLE(ptd)); + usb_settoggle(udev, ep->epnum, + ep->nextpid == USB_PID_OUT, + PTD_GET_TOGGLE(ptd)); urb->actual_length += PTD_GET_COUNT(ptd); - urb->status = cc_to_error[TD_DATAUNDERRUN]; - spin_unlock(&urb->lock); - continue; + status = cc_to_error[TD_DATAUNDERRUN]; + goto done; } } - /* Keep underrun error through the STATUS stage */ - if (urb->status == cc_to_error[TD_DATAUNDERRUN]) - cc = TD_DATAUNDERRUN; if (cc != TD_CC_NOERROR && cc != TD_NOTACCESSED && (++ep->error_count >= 3 || cc == TD_CC_STALL || cc == TD_DATAOVERRUN)) { - if (urb->status == -EINPROGRESS) - urb->status = cc_to_error[cc]; + status = cc_to_error[cc]; if (ep->nextpid == USB_PID_ACK) ep->nextpid = 0; - spin_unlock(&urb->lock); - continue; + goto done; } /* According to usb spec, zero-length Int transfer signals finishing of the urb. Hey, does this apply only for IN endpoints? */ if (usb_pipeint(urb->pipe) && !PTD_GET_LEN(ptd)) { - if (urb->status == -EINPROGRESS) - urb->status = 0; - spin_unlock(&urb->lock); - continue; + status = 0; + goto done; } /* Relax after previously failed, but later succeeded @@ -381,8 +424,8 @@ static void postproc_atl_queue(struct isp116x *isp116x) /* All data for this URB is transferred, let's finish */ if (usb_pipecontrol(urb->pipe)) ep->nextpid = USB_PID_ACK; - else if (urb->status == -EINPROGRESS) - urb->status = 0; + else + status = 0; break; case USB_PID_SETUP: if (PTD_GET_ACTIVE(ptd) @@ -402,69 +445,27 @@ static void postproc_atl_queue(struct isp116x *isp116x) if (PTD_GET_ACTIVE(ptd) || (cc != TD_CC_NOERROR && cc < 0x0E)) break; - if (urb->status == -EINPROGRESS) - urb->status = 0; + if ((urb->transfer_flags & URB_SHORT_NOT_OK) && + urb->actual_length < + urb->transfer_buffer_length) + status = -EREMOTEIO; + else + status = 0; ep->nextpid = 0; break; default: BUG(); } - spin_unlock(&urb->lock); - } -} - -/* - Take done or failed requests out of schedule. Give back - processed urbs. -*/ -static void finish_request(struct isp116x *isp116x, struct isp116x_ep *ep, - struct urb *urb) -__releases(isp116x->lock) __acquires(isp116x->lock) -{ - unsigned i; - - urb->hcpriv = NULL; - ep->error_count = 0; - - if (usb_pipecontrol(urb->pipe)) - ep->nextpid = USB_PID_SETUP; - - urb_dbg(urb, "Finish"); - - spin_unlock(&isp116x->lock); - usb_hcd_giveback_urb(isp116x_to_hcd(isp116x), urb); - spin_lock(&isp116x->lock); - - /* take idle endpoints out of the schedule */ - if (!list_empty(&ep->hep->urb_list)) - return; - - /* async deschedule */ - if (!list_empty(&ep->schedule)) { - list_del_init(&ep->schedule); - return; - } - /* periodic deschedule */ - DBG("deschedule qh%d/%p branch %d\n", ep->period, ep, ep->branch); - for (i = ep->branch; i < PERIODIC_SIZE; i += ep->period) { - struct isp116x_ep *temp; - struct isp116x_ep **prev = &isp116x->periodic[i]; - - while (*prev && ((temp = *prev) != ep)) - prev = &temp->next; - if (*prev) - *prev = ep->next; - isp116x->load[i] -= ep->load; - } - ep->branch = PERIODIC_SIZE; - isp116x_to_hcd(isp116x)->self.bandwidth_allocated -= - ep->load / ep->period; - - /* switch irq type? */ - if (!--isp116x->periodic_count) { - isp116x->irqenb &= ~HCuPINT_SOF; - isp116x->irqenb |= HCuPINT_ATL; + done: + if (status != -EINPROGRESS) { + spin_lock(&urb->lock); + if (urb->status == -EINPROGRESS) + urb->status = status; + spin_unlock(&urb->lock); + } + if (urb->status != -EINPROGRESS) + finish_request(isp116x, ep, urb); } } @@ -570,9 +571,6 @@ static void start_atl_transfers(struct isp116x *isp116x) */ static void finish_atl_transfers(struct isp116x *isp116x) { - struct isp116x_ep *ep; - struct urb *urb; - if (!isp116x->atl_active) return; /* Fifo not ready? */ @@ -582,16 +580,6 @@ static void finish_atl_transfers(struct isp116x *isp116x) atomic_inc(&isp116x->atl_finishing); unpack_fifo(isp116x); postproc_atl_queue(isp116x); - for (ep = isp116x->atl_active; ep; ep = ep->active) { - urb = - container_of(ep->hep->urb_list.next, struct urb, urb_list); - /* USB_PID_ACK check here avoids finishing of - control transfers, for which TD_DATAUNDERRUN - occured, while URB_SHORT_NOT_OK was set */ - if (urb && urb->status != -EINPROGRESS - && ep->nextpid != USB_PID_ACK) - finish_request(isp116x, ep, urb); - } atomic_dec(&isp116x->atl_finishing); } @@ -821,15 +809,12 @@ static int isp116x_urb_enqueue(struct usb_hcd *hcd, } /* in case of unlink-during-submit */ - spin_lock(&urb->lock); if (urb->status != -EINPROGRESS) { - spin_unlock(&urb->lock); finish_request(isp116x, ep, urb); ret = 0; goto fail; } urb->hcpriv = hep; - spin_unlock(&urb->lock); start_atl_transfers(isp116x); fail: diff --git a/drivers/usb/host/ohci-dbg.c b/drivers/usb/host/ohci-dbg.c index 273d5ddb72be..f61c6cdd06f2 100644 --- a/drivers/usb/host/ohci-dbg.c +++ b/drivers/usb/host/ohci-dbg.c @@ -23,7 +23,7 @@ /* debug| print the main components of an URB * small: 0) header + data packets 1) just header */ -static void __attribute__((unused)) +static void __maybe_unused urb_print (struct urb * urb, char * str, int small) { unsigned int pipe= urb->pipe; @@ -74,7 +74,7 @@ urb_print (struct urb * urb, char * str, int small) #define ohci_dbg_sw(ohci, next, size, format, arg...) \ do { \ - if (next) { \ + if (next != NULL) { \ unsigned s_len; \ s_len = scnprintf (*next, *size, format, ## arg ); \ *size -= s_len; *next += s_len; \ @@ -338,7 +338,7 @@ static void ohci_dump_td (const struct ohci_hcd *ohci, const char *label, } /* caller MUST own hcd spinlock if verbose is set! */ -static void __attribute__((unused)) +static void __maybe_unused ohci_dump_ed (const struct ohci_hcd *ohci, const char *label, const struct ed *ed, int verbose) { diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index a66637e725f3..6edf4097d2d2 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -35,15 +35,13 @@ #include <linux/dma-mapping.h> #include <linux/dmapool.h> #include <linux/reboot.h> +#include <linux/workqueue.h> #include <asm/io.h> #include <asm/irq.h> #include <asm/system.h> #include <asm/unaligned.h> #include <asm/byteorder.h> -#ifdef CONFIG_PPC_PS3 -#include <asm/firmware.h> -#endif #include "../core/hcd.h" @@ -82,6 +80,8 @@ static const char hcd_name [] = "ohci_hcd"; static void ohci_dump (struct ohci_hcd *ohci, int verbose); static int ohci_init (struct ohci_hcd *ohci); static void ohci_stop (struct usb_hcd *hcd); +static int ohci_restart (struct ohci_hcd *ohci); +static void ohci_quirk_nec_worker (struct work_struct *work); #include "ohci-hub.c" #include "ohci-dbg.c" @@ -171,11 +171,10 @@ static int ohci_urb_enqueue ( } /* allocate the private part of the URB */ - urb_priv = kmalloc (sizeof (urb_priv_t) + size * sizeof (struct td *), + urb_priv = kzalloc (sizeof (urb_priv_t) + size * sizeof (struct td *), mem_flags); if (!urb_priv) return -ENOMEM; - memset (urb_priv, 0, sizeof (urb_priv_t) + size * sizeof (struct td *)); INIT_LIST_HEAD (&urb_priv->pending); urb_priv->length = size; urb_priv->ed = ed; @@ -510,15 +509,7 @@ static int ohci_run (struct ohci_hcd *ohci) // flush the writes (void) ohci_readl (ohci, &ohci->regs->control); msleep(temp); - temp = roothub_a (ohci); - if (!(temp & RH_A_NPS)) { - /* power down each port */ - for (temp = 0; temp < ohci->num_ports; temp++) - ohci_writel (ohci, RH_PS_LSDA, - &ohci->regs->roothub.portstatus [temp]); - } - // flush those writes - (void) ohci_readl (ohci, &ohci->regs->control); + memset (ohci->hcca, 0, sizeof (struct ohci_hcca)); /* 2msec timelimit here means no irqs/preempt */ @@ -659,9 +650,20 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd) } if (ints & OHCI_INTR_UE) { - disable (ohci); - ohci_err (ohci, "OHCI Unrecoverable Error, disabled\n"); // e.g. due to PCI Master/Target Abort + if (ohci->flags & OHCI_QUIRK_NEC) { + /* Workaround for a silicon bug in some NEC chips used + * in Apple's PowerBooks. Adapted from Darwin code. + */ + ohci_err (ohci, "OHCI Unrecoverable Error, scheduling NEC chip restart\n"); + + ohci_writel (ohci, OHCI_INTR_UE, ®s->intrdisable); + + schedule_work (&ohci->nec_work); + } else { + disable (ohci); + ohci_err (ohci, "OHCI Unrecoverable Error, disabled\n"); + } ohci_dump (ohci, 1); ohci_usb_reset (ohci); @@ -763,23 +765,16 @@ static void ohci_stop (struct usb_hcd *hcd) /*-------------------------------------------------------------------------*/ /* must not be called from interrupt context */ - -#ifdef CONFIG_PM - static int ohci_restart (struct ohci_hcd *ohci) { int temp; int i; struct urb_priv *priv; - /* mark any devices gone, so they do nothing till khubd disconnects. - * recycle any "live" eds/tds (and urbs) right away. - * later, khubd disconnect processing will recycle the other state, - * (either as disconnect/reconnect, or maybe someday as a reset). - */ spin_lock_irq(&ohci->lock); disable (ohci); - usb_root_hub_lost_power(ohci_to_hcd(ohci)->self.root_hub); + + /* Recycle any "live" eds/tds (and urbs). */ if (!list_empty (&ohci->pending)) ohci_dbg(ohci, "abort schedule...\n"); list_for_each_entry (priv, &ohci->pending, pending) { @@ -826,20 +821,31 @@ static int ohci_restart (struct ohci_hcd *ohci) if ((temp = ohci_run (ohci)) < 0) { ohci_err (ohci, "can't restart, %d\n", temp); return temp; - } else { - /* here we "know" root ports should always stay powered, - * and that if we try to turn them back on the root hub - * will respond to CSC processing. - */ - i = ohci->num_ports; - while (i--) - ohci_writel (ohci, RH_PS_PSS, - &ohci->regs->roothub.portstatus [i]); - ohci_dbg (ohci, "restart complete\n"); } + ohci_dbg(ohci, "restart complete\n"); return 0; } -#endif + +/*-------------------------------------------------------------------------*/ + +/* NEC workaround */ +static void ohci_quirk_nec_worker(struct work_struct *work) +{ + struct ohci_hcd *ohci = container_of(work, struct ohci_hcd, nec_work); + int status; + + status = ohci_init(ohci); + if (status != 0) { + ohci_err(ohci, "Restarting NEC controller failed " + "in ohci_init, %d\n", status); + return; + } + + status = ohci_restart(ohci); + if (status != 0) + ohci_err(ohci, "Restarting NEC controller failed " + "in ohci_restart, %d\n", status); +} /*-------------------------------------------------------------------------*/ @@ -917,7 +923,7 @@ MODULE_LICENSE ("GPL"); #ifdef CONFIG_PPC_PS3 #include "ohci-ps3.c" -#define PS3_SYSTEM_BUS_DRIVER ps3_ohci_sb_driver +#define PS3_SYSTEM_BUS_DRIVER ps3_ohci_driver #endif #if !defined(PCI_DRIVER) && \ @@ -940,12 +946,9 @@ static int __init ohci_hcd_mod_init(void) sizeof (struct ed), sizeof (struct td)); #ifdef PS3_SYSTEM_BUS_DRIVER - if (firmware_has_feature(FW_FEATURE_PS3_LV1)) { - retval = ps3_system_bus_driver_register( - &PS3_SYSTEM_BUS_DRIVER); - if (retval < 0) - goto error_ps3; - } + retval = ps3_ohci_driver_register(&PS3_SYSTEM_BUS_DRIVER); + if (retval < 0) + goto error_ps3; #endif #ifdef PLATFORM_DRIVER @@ -991,8 +994,7 @@ static int __init ohci_hcd_mod_init(void) error_platform: #endif #ifdef PS3_SYSTEM_BUS_DRIVER - if (firmware_has_feature(FW_FEATURE_PS3_LV1)) - ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER); + ps3_ohci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER); error_ps3: #endif return retval; @@ -1014,8 +1016,7 @@ static void __exit ohci_hcd_mod_exit(void) platform_driver_unregister(&PLATFORM_DRIVER); #endif #ifdef PS3_SYSTEM_BUS_DRIVER - if (firmware_has_feature(FW_FEATURE_PS3_LV1)) - ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER); + ps3_ohci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER); #endif } module_exit(ohci_hcd_mod_exit); diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c index bb9cc595219e..48e4b11f4d3e 100644 --- a/drivers/usb/host/ohci-hub.c +++ b/drivers/usb/host/ohci-hub.c @@ -55,8 +55,6 @@ static void dl_done_list (struct ohci_hcd *); static void finish_unlinks (struct ohci_hcd *, u16); #ifdef CONFIG_PM -static int ohci_restart(struct ohci_hcd *ohci); - static int ohci_rh_suspend (struct ohci_hcd *ohci, int autostop) __releases(ohci->lock) __acquires(ohci->lock) @@ -191,6 +189,9 @@ __acquires(ohci->lock) spin_unlock_irq (&ohci->lock); (void) ohci_init (ohci); status = ohci_restart (ohci); + + usb_root_hub_lost_power(hcd->self.root_hub); + spin_lock_irq (&ohci->lock); } return status; diff --git a/drivers/usb/host/ohci-mem.c b/drivers/usb/host/ohci-mem.c index 2f20d3dc895b..450c7b460c5a 100644 --- a/drivers/usb/host/ohci-mem.c +++ b/drivers/usb/host/ohci-mem.c @@ -28,6 +28,7 @@ static void ohci_hcd_init (struct ohci_hcd *ohci) ohci->next_statechange = jiffies; spin_lock_init (&ohci->lock); INIT_LIST_HEAD (&ohci->pending); + INIT_WORK (&ohci->nec_work, ohci_quirk_nec_worker); } /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c index ca62cb583221..a5e2eb85d073 100644 --- a/drivers/usb/host/ohci-pci.c +++ b/drivers/usb/host/ohci-pci.c @@ -111,6 +111,18 @@ static int ohci_quirk_toshiba_scc(struct usb_hcd *hcd) #endif } +/* Check for NEC chip and apply quirk for allegedly lost interrupts. + */ +static int ohci_quirk_nec(struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci (hcd); + + ohci->flags |= OHCI_QUIRK_NEC; + ohci_dbg (ohci, "enabled NEC chipset lost interrupt quirk\n"); + + return 0; +} + /* List of quirks for OHCI */ static const struct pci_device_id ohci_pci_quirks[] = { { @@ -134,6 +146,10 @@ static const struct pci_device_id ohci_pci_quirks[] = { .driver_data = (unsigned long)ohci_quirk_toshiba_scc, }, { + PCI_DEVICE(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_USB), + .driver_data = (unsigned long)ohci_quirk_nec, + }, + { /* Toshiba portege 4000 */ .vendor = PCI_VENDOR_ID_AL, .device = 0x5237, @@ -202,6 +218,42 @@ static int __devinit ohci_pci_start (struct usb_hcd *hcd) return ret; } +#if defined(CONFIG_USB_PERSIST) && (defined(CONFIG_USB_EHCI_HCD) || \ + defined(CONFIG_USB_EHCI_HCD_MODULE)) + +/* Following a power loss, we must prepare to regain control of the ports + * we used to own. This means turning on the port power before ehci-hcd + * tries to switch ownership. + * + * This isn't a 100% perfect solution. On most systems the OHCI controllers + * lie at lower PCI addresses than the EHCI controller, so they will be + * discovered (and hence resumed) first. But there is no guarantee things + * will always work this way. If the EHCI controller is resumed first and + * the OHCI ports are unpowered, then the handover will fail. + */ +static void prepare_for_handover(struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + int port; + + /* Here we "know" root ports should always stay powered */ + ohci_dbg(ohci, "powerup ports\n"); + for (port = 0; port < ohci->num_ports; port++) + ohci_writel(ohci, RH_PS_PPS, + &ohci->regs->roothub.portstatus[port]); + + /* Flush those writes */ + ohci_readl(ohci, &ohci->regs->control); + msleep(20); +} + +#else + +static inline void prepare_for_handover(struct usb_hcd *hcd) +{ } + +#endif /* CONFIG_USB_PERSIST etc. */ + #ifdef CONFIG_PM static int ohci_pci_suspend (struct usb_hcd *hcd, pm_message_t message) @@ -241,7 +293,10 @@ static int ohci_pci_suspend (struct usb_hcd *hcd, pm_message_t message) static int ohci_pci_resume (struct usb_hcd *hcd) { set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); - usb_hcd_resume_root_hub(hcd); + + /* FIXME: we should try to detect loss of VBUS power here */ + prepare_for_handover(hcd); + return 0; } diff --git a/drivers/usb/host/ohci-pnx4008.c b/drivers/usb/host/ohci-pnx4008.c index d601bbb9387b..ca2a6abbc117 100644 --- a/drivers/usb/host/ohci-pnx4008.c +++ b/drivers/usb/host/ohci-pnx4008.c @@ -134,7 +134,7 @@ static int isp1301_attach(struct i2c_adapter *adap, int addr, int kind) { struct i2c_client *c; - c = (struct i2c_client *)kzalloc(sizeof(*c), GFP_KERNEL); + c = kzalloc(sizeof(*c), GFP_KERNEL); if (!c) return -ENOMEM; diff --git a/drivers/usb/host/ohci-ps3.c b/drivers/usb/host/ohci-ps3.c index d7cf07288b0b..01a0caeaa6bc 100644 --- a/drivers/usb/host/ohci-ps3.c +++ b/drivers/usb/host/ohci-ps3.c @@ -18,6 +18,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#include <asm/firmware.h> #include <asm/ps3.h> static int ps3_ohci_hc_reset(struct usb_hcd *hcd) @@ -75,7 +76,7 @@ static const struct hc_driver ps3_ohci_hc_driver = { #endif }; -static int ps3_ohci_sb_probe(struct ps3_system_bus_device *dev) +static int ps3_ohci_probe(struct ps3_system_bus_device *dev) { int result; struct usb_hcd *hcd; @@ -87,13 +88,31 @@ static int ps3_ohci_sb_probe(struct ps3_system_bus_device *dev) goto fail_start; } + result = ps3_open_hv_device(dev); + + if (result) { + dev_dbg(&dev->core, "%s:%d: ps3_open_hv_device failed: %s\n", + __func__, __LINE__, ps3_result(result)); + result = -EPERM; + goto fail_open; + } + + result = ps3_dma_region_create(dev->d_region); + + if (result) { + dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: " + "(%d)\n", __func__, __LINE__, result); + BUG_ON("check region type"); + goto fail_dma_region; + } + result = ps3_mmio_region_create(dev->m_region); if (result) { dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n", __func__, __LINE__); result = -EPERM; - goto fail_mmio; + goto fail_mmio_region; } dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__, @@ -122,6 +141,11 @@ static int ps3_ohci_sb_probe(struct ps3_system_bus_device *dev) hcd->rsrc_start = dev->m_region->lpar_addr; hcd->rsrc_len = dev->m_region->len; + + if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) + dev_dbg(&dev->core, "%s:%d: request_mem_region failed\n", + __func__, __LINE__); + hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len); if (!hcd->regs) { @@ -155,34 +179,73 @@ static int ps3_ohci_sb_probe(struct ps3_system_bus_device *dev) fail_add_hcd: iounmap(hcd->regs); fail_ioremap: + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); fail_create_hcd: ps3_io_irq_destroy(virq); fail_irq: ps3_free_mmio_region(dev->m_region); -fail_mmio: +fail_mmio_region: + ps3_dma_region_free(dev->d_region); +fail_dma_region: + ps3_close_hv_device(dev); +fail_open: fail_start: return result; } -static int ps3_ohci_sb_remove (struct ps3_system_bus_device *dev) +static int ps3_ohci_remove (struct ps3_system_bus_device *dev) { + unsigned int tmp; struct usb_hcd *hcd = (struct usb_hcd *)ps3_system_bus_get_driver_data(dev); - usb_put_hcd(hcd); + BUG_ON(!hcd); + + dev_dbg(&dev->core, "%s:%d: regs %p\n", __func__, __LINE__, hcd->regs); + dev_dbg(&dev->core, "%s:%d: irq %u\n", __func__, __LINE__, hcd->irq); + + tmp = hcd->irq; + + usb_remove_hcd(hcd); + ps3_system_bus_set_driver_data(dev, NULL); + BUG_ON(!hcd->regs); + iounmap(hcd->regs); + + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + usb_put_hcd(hcd); + + ps3_io_irq_destroy(tmp); + ps3_free_mmio_region(dev->m_region); + + ps3_dma_region_free(dev->d_region); + ps3_close_hv_device(dev); + return 0; } -MODULE_ALIAS("ps3-ohci"); +static int ps3_ohci_driver_register(struct ps3_system_bus_driver *drv) +{ + return firmware_has_feature(FW_FEATURE_PS3_LV1) + ? ps3_system_bus_driver_register(drv) + : 0; +} + +static void ps3_ohci_driver_unregister(struct ps3_system_bus_driver *drv) +{ + if (firmware_has_feature(FW_FEATURE_PS3_LV1)) + ps3_system_bus_driver_unregister(drv); +} + +MODULE_ALIAS(PS3_MODULE_ALIAS_OHCI); -static struct ps3_system_bus_driver ps3_ohci_sb_driver = { +static struct ps3_system_bus_driver ps3_ohci_driver = { + .core.name = "ps3-ohci-driver", + .core.owner = THIS_MODULE, .match_id = PS3_MATCH_ID_OHCI, - .core = { - .name = "ps3-ohci-driver", - }, - .probe = ps3_ohci_sb_probe, - .remove = ps3_ohci_sb_remove, + .probe = ps3_ohci_probe, + .remove = ps3_ohci_remove, + .shutdown = ps3_ohci_remove, }; diff --git a/drivers/usb/host/ohci.h b/drivers/usb/host/ohci.h index c2b5ecfe5e9f..4ada43cf1387 100644 --- a/drivers/usb/host/ohci.h +++ b/drivers/usb/host/ohci.h @@ -397,8 +397,10 @@ struct ohci_hcd { #define OHCI_QUIRK_BE_DESC 0x08 /* BE descriptors */ #define OHCI_QUIRK_BE_MMIO 0x10 /* BE registers */ #define OHCI_QUIRK_ZFMICRO 0x20 /* Compaq ZFMicro chipset*/ +#define OHCI_QUIRK_NEC 0x40 /* lost interrupts */ // there are also chip quirks/bugs in init logic + struct work_struct nec_work; /* Worker for NEC quirk */ }; /* convert between an hcd pointer and the corresponding ohci_hcd */ diff --git a/drivers/usb/host/sl811_cs.c b/drivers/usb/host/sl811_cs.c index 2d0e73b20099..5da63f535005 100644 --- a/drivers/usb/host/sl811_cs.c +++ b/drivers/usb/host/sl811_cs.c @@ -278,10 +278,9 @@ static int sl811_cs_probe(struct pcmcia_device *link) { local_info_t *local; - local = kmalloc(sizeof(local_info_t), GFP_KERNEL); + local = kzalloc(sizeof(local_info_t), GFP_KERNEL); if (!local) return -ENOMEM; - memset(local, 0, sizeof(local_info_t)); local->p_dev = link; link->priv = local; diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c index e98df2ee9901..b88eb3c62c02 100644 --- a/drivers/usb/host/u132-hcd.c +++ b/drivers/usb/host/u132-hcd.c @@ -52,6 +52,7 @@ #include <linux/workqueue.h> #include <linux/platform_device.h> #include <linux/pci_ids.h> +#include <linux/mutex.h> #include <asm/io.h> #include <asm/irq.h> #include <asm/system.h> @@ -83,7 +84,7 @@ static DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait); * u132_module_lock exists to protect access to global variables * */ -static struct semaphore u132_module_lock; +static struct mutex u132_module_lock; static int u132_exiting = 0; static int u132_instances = 0; static struct list_head u132_static_list; @@ -258,10 +259,10 @@ static void u132_hcd_delete(struct kref *kref) struct platform_device *pdev = u132->platform_dev; struct usb_hcd *hcd = u132_to_hcd(u132); u132->going += 1; - down(&u132_module_lock); + mutex_lock(&u132_module_lock); list_del_init(&u132->u132_list); u132_instances -= 1; - up(&u132_module_lock); + mutex_unlock(&u132_module_lock); dev_warn(&u132->platform_dev->dev, "FREEING the hcd=%p and thus the u13" "2=%p going=%d pdev=%p\n", hcd, u132, u132->going, pdev); usb_put_hcd(hcd); @@ -1519,12 +1520,15 @@ static void u132_hcd_endp_work_scheduler(struct work_struct *work) } } } +#ifdef CONFIG_PM static void port_power(struct u132 *u132, int pn, int is_on) { u132->port[pn].power = is_on; } +#endif + static void u132_power(struct u132 *u132, int is_on) { struct usb_hcd *hcd = u132_to_hcd(u132) @@ -3111,10 +3115,10 @@ static int __devinit u132_probe(struct platform_device *pdev) int retval = 0; struct u132 *u132 = hcd_to_u132(hcd); hcd->rsrc_start = 0; - down(&u132_module_lock); + mutex_lock(&u132_module_lock); list_add_tail(&u132->u132_list, &u132_static_list); u132->sequence_num = ++u132_instances; - up(&u132_module_lock); + mutex_unlock(&u132_module_lock); u132_u132_init_kref(u132); u132_initialise(u132, pdev); hcd->product_desc = "ELAN U132 Host Controller"; @@ -3216,7 +3220,7 @@ static int __init u132_hcd_init(void) INIT_LIST_HEAD(&u132_static_list); u132_instances = 0; u132_exiting = 0; - init_MUTEX(&u132_module_lock); + mutex_init(&u132_module_lock); if (usb_disabled()) return -ENODEV; printk(KERN_INFO "driver %s built at %s on %s\n", hcd_name, __TIME__, @@ -3232,9 +3236,9 @@ static void __exit u132_hcd_exit(void) { struct u132 *u132; struct u132 *temp; - down(&u132_module_lock); + mutex_lock(&u132_module_lock); u132_exiting += 1; - up(&u132_module_lock); + mutex_unlock(&u132_module_lock); list_for_each_entry_safe(u132, temp, &u132_static_list, u132_list) { platform_device_unregister(u132->platform_dev); } platform_driver_unregister(&u132_platform_driver); diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c index d22da26ff167..805e5fc5f5db 100644 --- a/drivers/usb/host/uhci-hcd.c +++ b/drivers/usb/host/uhci-hcd.c @@ -730,10 +730,9 @@ static int uhci_rh_resume(struct usb_hcd *hcd) int rc = 0; spin_lock_irq(&uhci->lock); - if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) { - dev_warn(&hcd->self.root_hub->dev, "HC isn't running!\n"); + if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) rc = -ESHUTDOWN; - } else if (!uhci->dead) + else if (!uhci->dead) wakeup_rh(uhci); spin_unlock_irq(&uhci->lock); return rc; @@ -934,7 +933,7 @@ static int __init uhci_hcd_init(void) } uhci_up_cachep = kmem_cache_create("uhci_urb_priv", - sizeof(struct urb_priv), 0, 0, NULL, NULL); + sizeof(struct urb_priv), 0, 0, NULL); if (!uhci_up_cachep) goto up_failed; diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c index 4aed305982ec..3bb908ca38e9 100644 --- a/drivers/usb/host/uhci-q.c +++ b/drivers/usb/host/uhci-q.c @@ -827,8 +827,10 @@ static int uhci_submit_control(struct uhci_hcd *uhci, struct urb *urb, * If direction is "send", change the packet ID from SETUP (0x2D) * to OUT (0xE1). Else change it from SETUP to IN (0x69) and * set Short Packet Detect (SPD) for all data packets. + * + * 0-length transfers always get treated as "send". */ - if (usb_pipeout(urb->pipe)) + if (usb_pipeout(urb->pipe) || len == 0) destination ^= (USB_PID_SETUP ^ USB_PID_OUT); else { destination ^= (USB_PID_SETUP ^ USB_PID_IN); @@ -839,7 +841,12 @@ static int uhci_submit_control(struct uhci_hcd *uhci, struct urb *urb, * Build the DATA TDs */ while (len > 0) { - int pktsze = min(len, maxsze); + int pktsze = maxsze; + + if (len <= pktsze) { /* The last data packet */ + pktsze = len; + status &= ~TD_CTRL_SPD; + } td = uhci_alloc_td(uhci); if (!td) @@ -866,20 +873,10 @@ static int uhci_submit_control(struct uhci_hcd *uhci, struct urb *urb, goto nomem; *plink = LINK_TO_TD(td); - /* - * It's IN if the pipe is an output pipe or we're not expecting - * data back. - */ - destination &= ~TD_TOKEN_PID_MASK; - if (usb_pipeout(urb->pipe) || !urb->transfer_buffer_length) - destination |= USB_PID_IN; - else - destination |= USB_PID_OUT; - + /* Change direction for the status transaction */ + destination ^= (USB_PID_IN ^ USB_PID_OUT); destination |= TD_TOKEN_TOGGLE; /* End in Data1 */ - status &= ~TD_CTRL_SPD; - uhci_add_td_to_urbp(td, urbp); uhci_fill_td(td, status | TD_CTRL_IOC, destination | uhci_explen(0), 0); @@ -1185,10 +1182,18 @@ static int uhci_result_common(struct uhci_hcd *uhci, struct urb *urb) } } + /* Did we receive a short packet? */ } else if (len < uhci_expected_length(td_token(td))) { - /* We received a short packet */ - if (urb->transfer_flags & URB_SHORT_NOT_OK) + /* For control transfers, go to the status TD if + * this isn't already the last data TD */ + if (qh->type == USB_ENDPOINT_XFER_CONTROL) { + if (td->list.next != urbp->td_list.prev) + ret = 1; + } + + /* For bulk and interrupt, this may be an error */ + else if (urb->transfer_flags & URB_SHORT_NOT_OK) ret = -EREMOTEIO; /* Fixup needed only if this isn't the URB's last TD */ @@ -1208,10 +1213,6 @@ static int uhci_result_common(struct uhci_hcd *uhci, struct urb *urb) err: if (ret < 0) { - /* In case a control transfer gets an error - * during the setup stage */ - urb->actual_length = max(urb->actual_length, 0); - /* Note that the queue has stopped and save * the next toggle value */ qh->element = UHCI_PTR_TERM; @@ -1489,9 +1490,25 @@ __acquires(uhci->lock) { struct urb_priv *urbp = (struct urb_priv *) urb->hcpriv; + if (qh->type == USB_ENDPOINT_XFER_CONTROL) { + + /* urb->actual_length < 0 means the setup transaction didn't + * complete successfully. Either it failed or the URB was + * unlinked first. Regardless, don't confuse people with a + * negative length. */ + urb->actual_length = max(urb->actual_length, 0); + + /* Report erroneous short transfers */ + if (unlikely((urb->transfer_flags & URB_SHORT_NOT_OK) && + urb->actual_length < + urb->transfer_buffer_length && + urb->status == 0)) + urb->status = -EREMOTEIO; + } + /* When giving back the first URB in an Isochronous queue, * reinitialize the QH's iso-related members for the next URB. */ - if (qh->type == USB_ENDPOINT_XFER_ISOC && + else if (qh->type == USB_ENDPOINT_XFER_ISOC && urbp->node.prev == &qh->queue && urbp->node.next != &qh->queue) { struct urb *nurb = list_entry(urbp->node.next, diff --git a/drivers/usb/image/mdc800.c b/drivers/usb/image/mdc800.c index 36502a06f73a..d1131a87a5b1 100644 --- a/drivers/usb/image/mdc800.c +++ b/drivers/usb/image/mdc800.c @@ -284,9 +284,9 @@ static void mdc800_usb_irq (struct urb *urb) int data_received=0, wake_up; unsigned char* b=urb->transfer_buffer; struct mdc800_data* mdc800=urb->context; + int status = urb->status; - if (urb->status >= 0) - { + if (status >= 0) { //dbg ("%i %i %i %i %i %i %i %i \n",b[0],b[1],b[2],b[3],b[4],b[5],b[6],b[7]); @@ -324,7 +324,7 @@ static void mdc800_usb_irq (struct urb *urb) || ((mdc800->camera_request_ready == 3) && (mdc800->camera_busy)) || - (urb->status < 0) + (status < 0) ); if (wake_up) @@ -376,15 +376,12 @@ static int mdc800_usb_waitForIRQ (int mode, int msec) static void mdc800_usb_write_notify (struct urb *urb) { struct mdc800_data* mdc800=urb->context; + int status = urb->status; - if (urb->status != 0) - { - err ("writing command fails (status=%i)", urb->status); - } + if (status != 0) + err ("writing command fails (status=%i)", status); else - { mdc800->state=READY; - } mdc800->written = 1; wake_up (&mdc800->write_wait); } @@ -396,9 +393,9 @@ static void mdc800_usb_write_notify (struct urb *urb) static void mdc800_usb_download_notify (struct urb *urb) { struct mdc800_data* mdc800=urb->context; + int status = urb->status; - if (urb->status == 0) - { + if (status == 0) { /* Fill output buffer with these data */ memcpy (mdc800->out, urb->transfer_buffer, 64); mdc800->out_count=64; @@ -408,10 +405,8 @@ static void mdc800_usb_download_notify (struct urb *urb) { mdc800->state=READY; } - } - else - { - err ("request bytes fails (status:%i)", urb->status); + } else { + err ("request bytes fails (status:%i)", status); } mdc800->downloaded = 1; wake_up (&mdc800->download_wait); @@ -649,9 +644,9 @@ static int mdc800_device_open (struct inode* inode, struct file *file) retval=0; mdc800->irq_urb->dev = mdc800->dev; - if (usb_submit_urb (mdc800->irq_urb, GFP_KERNEL)) - { - err ("request USB irq fails (submit_retval=%i urb_status=%i).",retval, mdc800->irq_urb->status); + retval = usb_submit_urb (mdc800->irq_urb, GFP_KERNEL); + if (retval) { + err ("request USB irq fails (submit_retval=%i).", retval); errn = -EIO; goto error_out; } @@ -698,6 +693,7 @@ static ssize_t mdc800_device_read (struct file *file, char __user *buf, size_t l { size_t left=len, sts=len; /* single transfer size */ char __user *ptr = buf; + int retval; mutex_lock(&mdc800->io_lock); if (mdc800->state == NOT_CONNECTED) @@ -737,9 +733,9 @@ static ssize_t mdc800_device_read (struct file *file, char __user *buf, size_t l /* Download -> Request new bytes */ mdc800->download_urb->dev = mdc800->dev; - if (usb_submit_urb (mdc800->download_urb, GFP_KERNEL)) - { - err ("Can't submit download urb (status=%i)",mdc800->download_urb->status); + retval = usb_submit_urb (mdc800->download_urb, GFP_KERNEL); + if (retval) { + err ("Can't submit download urb (retval=%i)",retval); mutex_unlock(&mdc800->io_lock); return len-left; } @@ -788,6 +784,7 @@ static ssize_t mdc800_device_read (struct file *file, char __user *buf, size_t l static ssize_t mdc800_device_write (struct file *file, const char __user *buf, size_t len, loff_t *pos) { size_t i=0; + int retval; mutex_lock(&mdc800->io_lock); if (mdc800->state != READY) @@ -854,9 +851,9 @@ static ssize_t mdc800_device_write (struct file *file, const char __user *buf, s mdc800->state=WORKING; memcpy (mdc800->write_urb->transfer_buffer, mdc800->in,8); mdc800->write_urb->dev = mdc800->dev; - if (usb_submit_urb (mdc800->write_urb, GFP_KERNEL)) - { - err ("submitting write urb fails (status=%i)", mdc800->write_urb->status); + retval = usb_submit_urb (mdc800->write_urb, GFP_KERNEL); + if (retval) { + err ("submitting write urb fails (retval=%i)", retval); mutex_unlock(&mdc800->io_lock); return -EIO; } diff --git a/drivers/usb/image/microtek.c b/drivers/usb/image/microtek.c index 51bd80d2b8cc..768b2c11a231 100644 --- a/drivers/usb/image/microtek.c +++ b/drivers/usb/image/microtek.c @@ -189,7 +189,7 @@ static struct usb_driver mts_usb_driver = { #define MTS_DEBUG_INT() \ do { MTS_DEBUG_GOT_HERE(); \ MTS_DEBUG("transfer = 0x%x context = 0x%x\n",(int)transfer,(int)context ); \ - MTS_DEBUG("status = 0x%x data-length = 0x%x sent = 0x%x\n",(int)transfer->status,(int)context->data_length, (int)transfer->actual_length ); \ + MTS_DEBUG("status = 0x%x data-length = 0x%x sent = 0x%x\n",transfer->status,(int)context->data_length, (int)transfer->actual_length ); \ mts_debug_dump(context->instance);\ } while(0) #else @@ -393,8 +393,6 @@ void mts_int_submit_urb (struct urb* transfer, context ); - transfer->status = 0; - res = usb_submit_urb( transfer, GFP_ATOMIC ); if ( unlikely(res) ) { MTS_INT_ERROR( "could not submit URB! Error was %d\n",(int)res ); @@ -444,12 +442,13 @@ static void mts_get_status( struct urb *transfer ) static void mts_data_done( struct urb* transfer ) /* Interrupt context! */ { + int status = transfer->status; MTS_INT_INIT(); if ( context->data_length != transfer->actual_length ) { context->srb->resid = context->data_length - transfer->actual_length; - } else if ( unlikely(transfer->status) ) { - context->srb->result = (transfer->status == -ENOENT ? DID_ABORT : DID_ERROR)<<16; + } else if ( unlikely(status) ) { + context->srb->result = (status == -ENOENT ? DID_ABORT : DID_ERROR)<<16; } mts_get_status(transfer); @@ -461,10 +460,11 @@ static void mts_data_done( struct urb* transfer ) static void mts_command_done( struct urb *transfer ) /* Interrupt context! */ { + int status = transfer->status; MTS_INT_INIT(); - if ( unlikely(transfer->status) ) { - if (transfer->status == -ENOENT) { + if ( unlikely(status) ) { + if (status == -ENOENT) { /* We are being killed */ MTS_DEBUG_GOT_HERE(); context->srb->result = DID_ABORT<<16; @@ -502,12 +502,13 @@ static void mts_command_done( struct urb *transfer ) static void mts_do_sg (struct urb* transfer) { struct scatterlist * sg; + int status = transfer->status; MTS_INT_INIT(); MTS_DEBUG("Processing fragment %d of %d\n", context->fragment,context->srb->use_sg); - if (unlikely(transfer->status)) { - context->srb->result = (transfer->status == -ENOENT ? DID_ABORT : DID_ERROR)<<16; + if (unlikely(status)) { + context->srb->result = (status == -ENOENT ? DID_ABORT : DID_ERROR)<<16; mts_transfer_cleanup(transfer); } diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c index 77145f9db043..e9fdbc8997b3 100644 --- a/drivers/usb/misc/adutux.c +++ b/drivers/usb/misc/adutux.c @@ -24,6 +24,7 @@ #include <linux/slab.h> #include <linux/module.h> #include <linux/usb.h> +#include <linux/mutex.h> #include <asm/uaccess.h> #ifdef CONFIG_USB_DEBUG @@ -80,7 +81,7 @@ MODULE_DEVICE_TABLE(usb, device_table); /* Structure to hold all of our device specific stuff */ struct adu_device { - struct semaphore sem; /* locks this structure */ + struct mutex mtx; /* locks this structure */ struct usb_device* udev; /* save off the usb device pointer */ struct usb_interface* interface; unsigned char minor; /* the starting minor number for this device */ @@ -108,8 +109,6 @@ struct adu_device { struct urb* interrupt_out_urb; }; -/* prevent races between open() and disconnect */ -static DEFINE_MUTEX(disconnect_mutex); static struct usb_driver adu_driver; static void adu_debug_data(int level, const char *function, int size, @@ -180,17 +179,18 @@ static void adu_delete(struct adu_device *dev) static void adu_interrupt_in_callback(struct urb *urb) { struct adu_device *dev = urb->context; + int status = urb->status; - dbg(4," %s : enter, status %d", __FUNCTION__, urb->status); + dbg(4," %s : enter, status %d", __FUNCTION__, status); adu_debug_data(5, __FUNCTION__, urb->actual_length, urb->transfer_buffer); spin_lock(&dev->buflock); - if (urb->status != 0) { - if ((urb->status != -ENOENT) && (urb->status != -ECONNRESET)) { + if (status != 0) { + if ((status != -ENOENT) && (status != -ECONNRESET)) { dbg(1," %s : nonzero status received: %d", - __FUNCTION__, urb->status); + __FUNCTION__, status); } goto exit; } @@ -218,21 +218,22 @@ exit: wake_up_interruptible(&dev->read_wait); adu_debug_data(5, __FUNCTION__, urb->actual_length, urb->transfer_buffer); - dbg(4," %s : leave, status %d", __FUNCTION__, urb->status); + dbg(4," %s : leave, status %d", __FUNCTION__, status); } static void adu_interrupt_out_callback(struct urb *urb) { struct adu_device *dev = urb->context; + int status = urb->status; - dbg(4," %s : enter, status %d", __FUNCTION__, urb->status); + dbg(4," %s : enter, status %d", __FUNCTION__, status); adu_debug_data(5,__FUNCTION__, urb->actual_length, urb->transfer_buffer); - if (urb->status != 0) { - if ((urb->status != -ENOENT) && - (urb->status != -ECONNRESET)) { + if (status != 0) { + if ((status != -ENOENT) && + (status != -ECONNRESET)) { dbg(1, " %s :nonzero status received: %d", - __FUNCTION__, urb->status); + __FUNCTION__, status); } goto exit; } @@ -242,7 +243,7 @@ exit: adu_debug_data(5, __FUNCTION__, urb->actual_length, urb->transfer_buffer); - dbg(4," %s : leave, status %d", __FUNCTION__, urb->status); + dbg(4," %s : leave, status %d", __FUNCTION__, status); } static int adu_open(struct inode *inode, struct file *file) @@ -256,8 +257,6 @@ static int adu_open(struct inode *inode, struct file *file) subminor = iminor(inode); - mutex_lock(&disconnect_mutex); - interface = usb_find_interface(&adu_driver, subminor); if (!interface) { err("%s - error, can't find device for minor %d", @@ -273,8 +272,8 @@ static int adu_open(struct inode *inode, struct file *file) } /* lock this device */ - if ((retval = down_interruptible(&dev->sem))) { - dbg(2, "%s : sem down failed", __FUNCTION__); + if ((retval = mutex_lock_interruptible(&dev->mtx))) { + dbg(2, "%s : mutex lock failed", __FUNCTION__); goto exit_no_device; } @@ -303,10 +302,9 @@ static int adu_open(struct inode *inode, struct file *file) if (retval) --dev->open_count; } - up(&dev->sem); + mutex_unlock(&dev->mtx); exit_no_device: - mutex_unlock(&disconnect_mutex); dbg(2,"%s : leave, return value %d ", __FUNCTION__, retval); return retval; @@ -318,12 +316,6 @@ static int adu_release_internal(struct adu_device *dev) dbg(2," %s : enter", __FUNCTION__); - if (dev->udev == NULL) { - /* the device was unplugged before the file was released */ - adu_delete(dev); - goto exit; - } - /* decrement our usage count for the device */ --dev->open_count; dbg(2," %s : open count %d", __FUNCTION__, dev->open_count); @@ -332,7 +324,6 @@ static int adu_release_internal(struct adu_device *dev) dev->open_count = 0; } -exit: dbg(2," %s : leave", __FUNCTION__); return retval; } @@ -359,7 +350,7 @@ static int adu_release(struct inode *inode, struct file *file) } /* lock our device */ - down(&dev->sem); /* not interruptible */ + mutex_lock(&dev->mtx); /* not interruptible */ if (dev->open_count <= 0) { dbg(1," %s : device not opened", __FUNCTION__); @@ -367,12 +358,19 @@ static int adu_release(struct inode *inode, struct file *file) goto exit; } - /* do the work */ - retval = adu_release_internal(dev); + if (dev->udev == NULL) { + /* the device was unplugged before the file was released */ + mutex_unlock(&dev->mtx); + adu_delete(dev); + dev = NULL; + } else { + /* do the work */ + retval = adu_release_internal(dev); + } exit: if (dev) - up(&dev->sem); + mutex_unlock(&dev->mtx); dbg(2," %s : leave, return value %d", __FUNCTION__, retval); return retval; } @@ -395,7 +393,7 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count, dev = file->private_data; dbg(2," %s : dev=%p", __FUNCTION__, dev); /* lock this object */ - if (down_interruptible(&dev->sem)) + if (mutex_lock_interruptible(&dev->mtx)) return -ERESTARTSYS; /* verify that the device wasn't unplugged */ @@ -527,7 +525,7 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count, exit: /* unlock the device */ - up(&dev->sem); + mutex_unlock(&dev->mtx); dbg(2," %s : leave, return value %d", __FUNCTION__, retval); return retval; @@ -548,7 +546,7 @@ static ssize_t adu_write(struct file *file, const __user char *buffer, dev = file->private_data; /* lock this object */ - retval = down_interruptible(&dev->sem); + retval = mutex_lock_interruptible(&dev->mtx); if (retval) goto exit_nolock; @@ -576,9 +574,9 @@ static ssize_t adu_write(struct file *file, const __user char *buffer, retval = -EINTR; goto exit; } - up(&dev->sem); + mutex_unlock(&dev->mtx); timeout = interruptible_sleep_on_timeout(&dev->write_wait, timeout); - retval = down_interruptible(&dev->sem); + retval = mutex_lock_interruptible(&dev->mtx); if (retval) { retval = bytes_written ? bytes_written : retval; goto exit_nolock; @@ -643,7 +641,7 @@ static ssize_t adu_write(struct file *file, const __user char *buffer, exit: /* unlock the device */ - up(&dev->sem); + mutex_unlock(&dev->mtx); exit_nolock: dbg(2," %s : leave, return value %d", __FUNCTION__, retval); @@ -703,7 +701,7 @@ static int adu_probe(struct usb_interface *interface, goto exit; } - init_MUTEX(&dev->sem); + mutex_init(&dev->mtx); spin_lock_init(&dev->buflock); dev->udev = udev; init_waitqueue_head(&dev->read_wait); @@ -831,31 +829,27 @@ static void adu_disconnect(struct usb_interface *interface) dbg(2," %s : enter", __FUNCTION__); - mutex_lock(&disconnect_mutex); /* not interruptible */ - dev = usb_get_intfdata(interface); usb_set_intfdata(interface, NULL); - down(&dev->sem); /* not interruptible */ - minor = dev->minor; /* give back our minor */ usb_deregister_dev(interface, &adu_class); dev->minor = 0; + mutex_lock(&dev->mtx); /* not interruptible */ + /* if the device is not opened, then we clean up right now */ dbg(2," %s : open count %d", __FUNCTION__, dev->open_count); if (!dev->open_count) { - up(&dev->sem); + mutex_unlock(&dev->mtx); adu_delete(dev); } else { dev->udev = NULL; - up(&dev->sem); + mutex_unlock(&dev->mtx); } - mutex_unlock(&disconnect_mutex); - dev_info(&interface->dev, "ADU device adutux%d now disconnected", (minor - ADU_MINOR_BASE)); diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c index cf70c16f0e3f..1cb56f2d5c84 100644 --- a/drivers/usb/misc/appledisplay.c +++ b/drivers/usb/misc/appledisplay.c @@ -88,9 +88,10 @@ static void appledisplay_complete(struct urb *urb) { struct appledisplay *pdata = urb->context; unsigned long flags; + int status = urb->status; int retval; - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -102,12 +103,12 @@ static void appledisplay_complete(struct urb *urb) case -ENOENT: case -ESHUTDOWN: /* This urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", - __FUNCTION__, urb->status); + dbg("%s - urb shuttingdown with status: %d", + __FUNCTION__, status); return; default: dbg("%s - nonzero urb status received: %d", - __FUNCTION__, urb->status); + __FUNCTION__, status); goto exit; } @@ -137,7 +138,7 @@ exit: static int appledisplay_bl_update_status(struct backlight_device *bd) { - struct appledisplay *pdata = class_get_devdata(&bd->class_dev); + struct appledisplay *pdata = bl_get_data(bd); int retval; pdata->msgdata[0] = 0x10; @@ -158,7 +159,7 @@ static int appledisplay_bl_update_status(struct backlight_device *bd) static int appledisplay_bl_get_brightness(struct backlight_device *bd) { - struct appledisplay *pdata = class_get_devdata(&bd->class_dev); + struct appledisplay *pdata = bl_get_data(bd); int retval; retval = usb_control_msg( diff --git a/drivers/usb/misc/auerswald.c b/drivers/usb/misc/auerswald.c index cac1500cba62..df7e1ecc810a 100644 --- a/drivers/usb/misc/auerswald.c +++ b/drivers/usb/misc/auerswald.c @@ -630,7 +630,7 @@ static int auerchain_start_wait_urb (pauerchain_t acp, struct urb *urb, int time } else status = urb->status; - if (actual_length) + if (status >= 0) *actual_length = urb->actual_length; return status; @@ -664,7 +664,7 @@ static int auerchain_control_msg (pauerchain_t acp, struct usb_device *dev, unsi int ret; struct usb_ctrlrequest *dr; struct urb *urb; - int length; + int uninitialized_var(length); dbg ("auerchain_control_msg"); dr = kmalloc (sizeof (struct usb_ctrlrequest), GFP_KERNEL); @@ -862,14 +862,16 @@ static void auerswald_ctrlread_wretcomplete (struct urb * urb) pauerbuf_t bp = (pauerbuf_t) urb->context; pauerswald_t cp; int ret; + int status = urb->status; + dbg ("auerswald_ctrlread_wretcomplete called"); - dbg ("complete with status: %d", urb->status); + dbg ("complete with status: %d", status); cp = ((pauerswald_t)((char *)(bp->list)-(unsigned long)(&((pauerswald_t)0)->bufctl))); /* check if it is possible to advance */ - if (!auerswald_status_retry (urb->status) || !cp->usbdev) { + if (!auerswald_status_retry(status) || !cp->usbdev) { /* reuse the buffer */ - err ("control dummy: transmission error %d, can not retry", urb->status); + err ("control dummy: transmission error %d, can not retry", status); auerbuf_releasebuf (bp); /* Wake up all processes waiting for a buffer */ wake_up (&cp->bufferwait); @@ -902,21 +904,23 @@ static void auerswald_ctrlread_complete (struct urb * urb) pauerswald_t cp; pauerscon_t scp; pauerbuf_t bp = (pauerbuf_t) urb->context; + int status = urb->status; int ret; + dbg ("auerswald_ctrlread_complete called"); cp = ((pauerswald_t)((char *)(bp->list)-(unsigned long)(&((pauerswald_t)0)->bufctl))); /* check if there is valid data in this urb */ - if (urb->status) { - dbg ("complete with non-zero status: %d", urb->status); + if (status) { + dbg ("complete with non-zero status: %d", status); /* should we do a retry? */ - if (!auerswald_status_retry (urb->status) + if (!auerswald_status_retry(status) || !cp->usbdev || (cp->version < AUV_RETRY) || (bp->retries >= AU_RETRIES)) { /* reuse the buffer */ - err ("control read: transmission error %d, can not retry", urb->status); + err ("control read: transmission error %d, can not retry", status); auerbuf_releasebuf (bp); /* Wake up all processes waiting for a buffer */ wake_up (&cp->bufferwait); @@ -974,12 +978,13 @@ static void auerswald_int_complete (struct urb * urb) unsigned int channelid; unsigned int bytecount; int ret; + int status = urb->status; pauerbuf_t bp = NULL; pauerswald_t cp = (pauerswald_t) urb->context; dbg ("%s called", __FUNCTION__); - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -987,10 +992,10 @@ static void auerswald_int_complete (struct urb * urb) case -ENOENT: case -ESHUTDOWN: /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); + dbg("%s - urb shutting down with status: %d", __FUNCTION__, status); return; default: - dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); + dbg("%s - nonzero urb status received: %d", __FUNCTION__, status); goto exit; } @@ -2034,12 +2039,12 @@ static void auerswald_disconnect (struct usb_interface *intf) if (!cp) return; - down (&cp->mutex); - info ("device /dev/%s now disconnecting", cp->name); - /* give back our USB minor number */ usb_deregister_dev(intf, &auerswald_class); + down (&cp->mutex); + info ("device /dev/%s now disconnecting", cp->name); + /* Stop the interrupt endpoint */ auerswald_int_release (cp); diff --git a/drivers/usb/misc/berry_charge.c b/drivers/usb/misc/berry_charge.c index b15f2fd8dab4..92c1d2768df9 100644 --- a/drivers/usb/misc/berry_charge.c +++ b/drivers/usb/misc/berry_charge.c @@ -26,8 +26,11 @@ #define RIM_VENDOR 0x0fca #define BLACKBERRY 0x0001 +#define BLACKBERRY_PEARL_DUAL 0x0004 +#define BLACKBERRY_PEARL 0x0006 static int debug; +static int pearl_dual_mode = 1; #ifdef dbg #undef dbg @@ -38,6 +41,8 @@ static int debug; static struct usb_device_id id_table [] = { { USB_DEVICE(RIM_VENDOR, BLACKBERRY) }, + { USB_DEVICE(RIM_VENDOR, BLACKBERRY_PEARL) }, + { USB_DEVICE(RIM_VENDOR, BLACKBERRY_PEARL_DUAL) }, { }, /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, id_table); @@ -86,6 +91,30 @@ static int magic_charge(struct usb_device *udev) return retval; } +static int magic_dual_mode(struct usb_device *udev) +{ + char *dummy_buffer = kzalloc(2, GFP_KERNEL); + int retval; + + if (!dummy_buffer) + return -ENOMEM; + + /* send magic command so that the Blackberry Pearl device exposes + * two interfaces: both the USB mass-storage one and one which can + * be used for database access. */ + dbg(&udev->dev, "Sending magic pearl command\n"); + retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), + 0xa9, 0xc0, 1, 1, dummy_buffer, 2, 100); + dbg(&udev->dev, "Magic pearl command returned %d\n", retval); + + dbg(&udev->dev, "Calling set_configuration\n"); + retval = usb_driver_set_configuration(udev, 1); + if (retval) + dev_err(&udev->dev, "Set Configuration failed :%d.\n", retval); + + return retval; +} + static int berry_probe(struct usb_interface *intf, const struct usb_device_id *id) { @@ -105,6 +134,10 @@ static int berry_probe(struct usb_interface *intf, /* turn the power on */ magic_charge(udev); + if ((le16_to_cpu(udev->descriptor.idProduct) == BLACKBERRY_PEARL) && + (pearl_dual_mode)) + magic_dual_mode(udev); + /* we don't really want to bind to the device, userspace programs can * handle the syncing just fine, so get outta here. */ return -ENODEV; @@ -138,3 +171,5 @@ MODULE_LICENSE("GPL"); MODULE_AUTHOR("Greg Kroah-Hartman <gregkh@suse.de>"); module_param(debug, bool, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(debug, "Debug enabled or not"); +module_param(pearl_dual_mode, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(pearl_dual_mode, "Change Blackberry Pearl to run in dual mode"); diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c index e0f122e131d7..538b535e955b 100644 --- a/drivers/usb/misc/ftdi-elan.c +++ b/drivers/usb/misc/ftdi-elan.c @@ -44,6 +44,7 @@ #include <linux/slab.h> #include <linux/module.h> #include <linux/kref.h> +#include <linux/mutex.h> #include <asm/uaccess.h> #include <linux/usb.h> #include <linux/workqueue.h> @@ -64,7 +65,7 @@ static struct workqueue_struct *respond_queue; * ftdi_module_lock exists to protect access to global variables * */ -static struct semaphore ftdi_module_lock; +static struct mutex ftdi_module_lock; static int ftdi_instances = 0; static struct list_head ftdi_static_list; /* @@ -199,10 +200,10 @@ static void ftdi_elan_delete(struct kref *kref) dev_warn(&ftdi->udev->dev, "FREEING ftdi=%p\n", ftdi); usb_put_dev(ftdi->udev); ftdi->disconnected += 1; - down(&ftdi_module_lock); + mutex_lock(&ftdi_module_lock); list_del_init(&ftdi->ftdi_list); ftdi_instances -= 1; - up(&ftdi_module_lock); + mutex_unlock(&ftdi_module_lock); kfree(ftdi->bulk_in_buffer); ftdi->bulk_in_buffer = NULL; } @@ -746,10 +747,12 @@ static ssize_t ftdi_elan_read(struct file *file, char __user *buffer, static void ftdi_elan_write_bulk_callback(struct urb *urb) { struct usb_ftdi *ftdi = (struct usb_ftdi *)urb->context; - if (urb->status && !(urb->status == -ENOENT || urb->status == - -ECONNRESET || urb->status == -ESHUTDOWN)) { + int status = urb->status; + + if (status && !(status == -ENOENT || status == -ECONNRESET || + status == -ESHUTDOWN)) { dev_err(&ftdi->udev->dev, "urb=%p write bulk status received: %" - "d\n", urb, urb->status); + "d\n", urb, status); } usb_buffer_free(urb->dev, urb->transfer_buffer_length, urb->transfer_buffer, urb->transfer_dma); @@ -2780,10 +2783,10 @@ static int ftdi_elan_probe(struct usb_interface *interface, return -ENOMEM; } memset(ftdi, 0x00, sizeof(struct usb_ftdi)); - down(&ftdi_module_lock); + mutex_lock(&ftdi_module_lock); list_add_tail(&ftdi->ftdi_list, &ftdi_static_list); ftdi->sequence_num = ++ftdi_instances; - up(&ftdi_module_lock); + mutex_unlock(&ftdi_module_lock); ftdi_elan_init_kref(ftdi); init_MUTEX(&ftdi->sw_lock); ftdi->udev = usb_get_dev(interface_to_usbdev(interface)); @@ -2909,7 +2912,7 @@ static int __init ftdi_elan_init(void) int result; printk(KERN_INFO "driver %s built at %s on %s\n", ftdi_elan_driver.name, __TIME__, __DATE__); - init_MUTEX(&ftdi_module_lock); + mutex_init(&ftdi_module_lock); INIT_LIST_HEAD(&ftdi_static_list); status_queue = create_singlethread_workqueue("ftdi-status-control"); if (!status_queue) diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c index 8d0e360636e6..e6fd024024f5 100644 --- a/drivers/usb/misc/idmouse.c +++ b/drivers/usb/misc/idmouse.c @@ -119,9 +119,6 @@ static struct usb_driver idmouse_driver = { .id_table = idmouse_table, }; -/* prevent races between open() and disconnect() */ -static DEFINE_MUTEX(disconnect_mutex); - static int idmouse_create_image(struct usb_idmouse *dev) { int bytes_read; @@ -211,21 +208,15 @@ static int idmouse_open(struct inode *inode, struct file *file) struct usb_interface *interface; int result; - /* prevent disconnects */ - mutex_lock(&disconnect_mutex); - /* get the interface from minor number and driver information */ interface = usb_find_interface (&idmouse_driver, iminor (inode)); - if (!interface) { - mutex_unlock(&disconnect_mutex); + if (!interface) return -ENODEV; - } + /* get the device information block from the interface */ dev = usb_get_intfdata(interface); - if (!dev) { - mutex_unlock(&disconnect_mutex); + if (!dev) return -ENODEV; - } /* lock this device */ down(&dev->sem); @@ -255,9 +246,6 @@ error: /* unlock this device */ up(&dev->sem); - - /* unlock the disconnect semaphore */ - mutex_unlock(&disconnect_mutex); return result; } @@ -265,15 +253,10 @@ static int idmouse_release(struct inode *inode, struct file *file) { struct usb_idmouse *dev; - /* prevent a race condition with open() */ - mutex_lock(&disconnect_mutex); - dev = file->private_data; - if (dev == NULL) { - mutex_unlock(&disconnect_mutex); + if (dev == NULL) return -ENODEV; - } /* lock our device */ down(&dev->sem); @@ -281,7 +264,6 @@ static int idmouse_release(struct inode *inode, struct file *file) /* are we really open? */ if (dev->open <= 0) { up(&dev->sem); - mutex_unlock(&disconnect_mutex); return -ENODEV; } @@ -291,12 +273,9 @@ static int idmouse_release(struct inode *inode, struct file *file) /* the device was unplugged before the file was released */ up(&dev->sem); idmouse_delete(dev); - mutex_unlock(&disconnect_mutex); - return 0; + } else { + up(&dev->sem); } - - up(&dev->sem); - mutex_unlock(&disconnect_mutex); return 0; } @@ -391,30 +370,27 @@ static void idmouse_disconnect(struct usb_interface *interface) { struct usb_idmouse *dev; - /* prevent races with open() */ - mutex_lock(&disconnect_mutex); - /* get device structure */ dev = usb_get_intfdata(interface); usb_set_intfdata(interface, NULL); - /* lock it */ - down(&dev->sem); - /* give back our minor */ usb_deregister_dev(interface, &idmouse_class); + /* lock it */ + down(&dev->sem); + /* prevent device read, write and ioctl */ dev->present = 0; - /* unlock */ - up(&dev->sem); - /* if the device is opened, idmouse_release will clean this up */ - if (!dev->open) + if (!dev->open) { + up(&dev->sem); idmouse_delete(dev); - - mutex_unlock(&disconnect_mutex); + } else { + /* unlock */ + up(&dev->sem); + } info("%s disconnected", DRIVER_DESC); } diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c index 3bb33f7bfa36..46d9f27ec173 100644 --- a/drivers/usb/misc/iowarrior.c +++ b/drivers/usb/misc/iowarrior.c @@ -100,8 +100,6 @@ struct iowarrior { /*--------------*/ /* globals */ /*--------------*/ -/* prevent races between open() and disconnect() */ -static DECLARE_MUTEX(disconnect_sem); /* * USB spec identifies 5 second timeouts. @@ -160,9 +158,10 @@ static void iowarrior_callback(struct urb *urb) int read_idx; int aux_idx; int offset; - int status; + int status = urb->status; + int retval; - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -215,10 +214,10 @@ static void iowarrior_callback(struct urb *urb) wake_up_interruptible(&dev->read_wait); exit: - status = usb_submit_urb(urb, GFP_ATOMIC); - if (status) + retval = usb_submit_urb(urb, GFP_ATOMIC); + if (retval) dev_err(&dev->interface->dev, "%s - usb_submit_urb failed with result %d", - __FUNCTION__, status); + __FUNCTION__, retval); } @@ -228,13 +227,15 @@ exit: static void iowarrior_write_callback(struct urb *urb) { struct iowarrior *dev; + int status = urb->status; + dev = (struct iowarrior *)urb->context; /* sync/async unlink faults aren't errors */ - if (urb->status && - !(urb->status == -ENOENT || - urb->status == -ECONNRESET || urb->status == -ESHUTDOWN)) { + if (status && + !(status == -ENOENT || + status == -ECONNRESET || status == -ESHUTDOWN)) { dbg("%s - nonzero write bulk status received: %d", - __func__, urb->status); + __func__, status); } /* free up our allocated buffer */ usb_buffer_free(urb->dev, urb->transfer_buffer_length, @@ -600,22 +601,18 @@ static int iowarrior_open(struct inode *inode, struct file *file) subminor = iminor(inode); - /* prevent disconnects */ - down(&disconnect_sem); - interface = usb_find_interface(&iowarrior_driver, subminor); if (!interface) { err("%s - error, can't find device for minor %d", __FUNCTION__, subminor); - retval = -ENODEV; - goto out; + return -ENODEV; } dev = usb_get_intfdata(interface); - if (!dev) { - retval = -ENODEV; - goto out; - } + if (!dev) + return -ENODEV; + + mutex_lock(&dev->mutex); /* Only one process can open each device, no sharing. */ if (dev->opened) { @@ -636,7 +633,7 @@ static int iowarrior_open(struct inode *inode, struct file *file) retval = 0; out: - up(&disconnect_sem); + mutex_unlock(&dev->mutex); return retval; } @@ -868,19 +865,16 @@ static void iowarrior_disconnect(struct usb_interface *interface) struct iowarrior *dev; int minor; - /* prevent races with open() */ - down(&disconnect_sem); - dev = usb_get_intfdata(interface); usb_set_intfdata(interface, NULL); - mutex_lock(&dev->mutex); - minor = dev->minor; /* give back our minor */ usb_deregister_dev(interface, &iowarrior_class); + mutex_lock(&dev->mutex); + /* prevent device read, write and ioctl */ dev->present = 0; @@ -898,7 +892,6 @@ static void iowarrior_disconnect(struct usb_interface *interface) /* no process is using the device, cleanup now */ iowarrior_delete(dev); } - up(&disconnect_sem); dev_info(&interface->dev, "I/O-Warror #%d now disconnected\n", minor - IOWARRIOR_MINOR_BASE); diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c index 7bad49404762..8208496dfc63 100644 --- a/drivers/usb/misc/ldusb.c +++ b/drivers/usb/misc/ldusb.c @@ -176,9 +176,6 @@ struct ld_usb { int interrupt_out_busy; }; -/* prevent races between open() and disconnect() */ -static DEFINE_MUTEX(disconnect_mutex); - static struct usb_driver ld_usb_driver; /** @@ -222,16 +219,17 @@ static void ld_usb_interrupt_in_callback(struct urb *urb) struct ld_usb *dev = urb->context; size_t *actual_buffer; unsigned int next_ring_head; + int status = urb->status; int retval; - if (urb->status) { - if (urb->status == -ENOENT || - urb->status == -ECONNRESET || - urb->status == -ESHUTDOWN) { + if (status) { + if (status == -ENOENT || + status == -ECONNRESET || + status == -ESHUTDOWN) { goto exit; } else { dbg_info(&dev->intf->dev, "%s: nonzero status received: %d\n", - __FUNCTION__, urb->status); + __FUNCTION__, status); spin_lock(&dev->rbsl); goto resubmit; /* maybe we can recover */ } @@ -278,14 +276,15 @@ exit: static void ld_usb_interrupt_out_callback(struct urb *urb) { struct ld_usb *dev = urb->context; + int status = urb->status; /* sync/async unlink faults aren't errors */ - if (urb->status && !(urb->status == -ENOENT || - urb->status == -ECONNRESET || - urb->status == -ESHUTDOWN)) + if (status && !(status == -ENOENT || + status == -ECONNRESET || + status == -ESHUTDOWN)) dbg_info(&dev->intf->dev, "%s - nonzero write interrupt status received: %d\n", - __FUNCTION__, urb->status); + __FUNCTION__, status); dev->interrupt_out_busy = 0; wake_up_interruptible(&dev->write_wait); @@ -298,35 +297,28 @@ static int ld_usb_open(struct inode *inode, struct file *file) { struct ld_usb *dev; int subminor; - int retval = 0; + int retval; struct usb_interface *interface; nonseekable_open(inode, file); subminor = iminor(inode); - mutex_lock(&disconnect_mutex); - interface = usb_find_interface(&ld_usb_driver, subminor); if (!interface) { err("%s - error, can't find device for minor %d\n", __FUNCTION__, subminor); - retval = -ENODEV; - goto unlock_disconnect_exit; + return -ENODEV; } dev = usb_get_intfdata(interface); - if (!dev) { - retval = -ENODEV; - goto unlock_disconnect_exit; - } + if (!dev) + return -ENODEV; /* lock this device */ - if (down_interruptible(&dev->sem)) { - retval = -ERESTARTSYS; - goto unlock_disconnect_exit; - } + if (down_interruptible(&dev->sem)) + return -ERESTARTSYS; /* allow opening only once */ if (dev->open_count) { @@ -366,9 +358,6 @@ static int ld_usb_open(struct inode *inode, struct file *file) unlock_exit: up(&dev->sem); -unlock_disconnect_exit: - mutex_unlock(&disconnect_mutex); - return retval; } @@ -766,18 +755,16 @@ static void ld_usb_disconnect(struct usb_interface *intf) struct ld_usb *dev; int minor; - mutex_lock(&disconnect_mutex); - dev = usb_get_intfdata(intf); usb_set_intfdata(intf, NULL); - down(&dev->sem); - minor = intf->minor; /* give back our minor */ usb_deregister_dev(intf, &ld_usb_class); + down(&dev->sem); + /* if the device is not opened, then we clean up right now */ if (!dev->open_count) { up(&dev->sem); @@ -787,8 +774,6 @@ static void ld_usb_disconnect(struct usb_interface *intf) up(&dev->sem); } - mutex_unlock(&disconnect_mutex); - dev_info(&intf->dev, "LD USB Device #%d now disconnected\n", (minor - USB_LD_MINOR_BASE)); } diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c index 1713e19a7899..561970b889a5 100644 --- a/drivers/usb/misc/legousbtower.c +++ b/drivers/usb/misc/legousbtower.c @@ -254,9 +254,6 @@ static int tower_probe (struct usb_interface *interface, const struct usb_devic static void tower_disconnect (struct usb_interface *interface); -/* prevent races between open() and disconnect */ -static DEFINE_MUTEX (disconnect_mutex); - /* file operations needed when we register this driver */ static const struct file_operations tower_fops = { .owner = THIS_MODULE, @@ -344,28 +341,26 @@ static int tower_open (struct inode *inode, struct file *file) nonseekable_open(inode, file); subminor = iminor(inode); - mutex_lock (&disconnect_mutex); - interface = usb_find_interface (&tower_driver, subminor); if (!interface) { err ("%s - error, can't find device for minor %d", __FUNCTION__, subminor); retval = -ENODEV; - goto unlock_disconnect_exit; + goto exit; } dev = usb_get_intfdata(interface); if (!dev) { retval = -ENODEV; - goto unlock_disconnect_exit; + goto exit; } /* lock this device */ if (down_interruptible (&dev->sem)) { retval = -ERESTARTSYS; - goto unlock_disconnect_exit; + goto exit; } /* allow opening only once */ @@ -421,9 +416,7 @@ static int tower_open (struct inode *inode, struct file *file) unlock_exit: up (&dev->sem); -unlock_disconnect_exit: - mutex_unlock (&disconnect_mutex); - +exit: dbg(2, "%s: leave, return value %d ", __FUNCTION__, retval); return retval; @@ -749,19 +742,20 @@ exit: static void tower_interrupt_in_callback (struct urb *urb) { struct lego_usb_tower *dev = (struct lego_usb_tower *)urb->context; + int status = urb->status; int retval; - dbg(4, "%s: enter, status %d", __FUNCTION__, urb->status); + dbg(4, "%s: enter, status %d", __FUNCTION__, status); lego_usb_tower_debug_data(5, __FUNCTION__, urb->actual_length, urb->transfer_buffer); - if (urb->status) { - if (urb->status == -ENOENT || - urb->status == -ECONNRESET || - urb->status == -ESHUTDOWN) { + if (status) { + if (status == -ENOENT || + status == -ECONNRESET || + status == -ESHUTDOWN) { goto exit; } else { - dbg(1, "%s: nonzero status received: %d", __FUNCTION__, urb->status); + dbg(1, "%s: nonzero status received: %d", __FUNCTION__, status); goto resubmit; /* maybe we can recover */ } } @@ -795,7 +789,7 @@ exit: wake_up_interruptible (&dev->read_wait); lego_usb_tower_debug_data(5, __FUNCTION__, urb->actual_length, urb->transfer_buffer); - dbg(4, "%s: leave, status %d", __FUNCTION__, urb->status); + dbg(4, "%s: leave, status %d", __FUNCTION__, status); } @@ -805,23 +799,24 @@ exit: static void tower_interrupt_out_callback (struct urb *urb) { struct lego_usb_tower *dev = (struct lego_usb_tower *)urb->context; + int status = urb->status; - dbg(4, "%s: enter, status %d", __FUNCTION__, urb->status); + dbg(4, "%s: enter, status %d", __FUNCTION__, status); lego_usb_tower_debug_data(5, __FUNCTION__, urb->actual_length, urb->transfer_buffer); /* sync/async unlink faults aren't errors */ - if (urb->status && !(urb->status == -ENOENT || - urb->status == -ECONNRESET || - urb->status == -ESHUTDOWN)) { + if (status && !(status == -ENOENT || + status == -ECONNRESET || + status == -ESHUTDOWN)) { dbg(1, "%s - nonzero write bulk status received: %d", - __FUNCTION__, urb->status); + __FUNCTION__, status); } dev->interrupt_out_busy = 0; wake_up_interruptible(&dev->write_wait); lego_usb_tower_debug_data(5, __FUNCTION__, urb->actual_length, urb->transfer_buffer); - dbg(4, "%s: leave, status %d", __FUNCTION__, urb->status); + dbg(4, "%s: leave, status %d", __FUNCTION__, status); } @@ -993,19 +988,16 @@ static void tower_disconnect (struct usb_interface *interface) dbg(2, "%s: enter", __FUNCTION__); - mutex_lock (&disconnect_mutex); - dev = usb_get_intfdata (interface); usb_set_intfdata (interface, NULL); - - down (&dev->sem); - minor = dev->minor; /* give back our minor */ usb_deregister_dev (interface, &tower_class); + down (&dev->sem); + /* if the device is not opened, then we clean up right now */ if (!dev->open_count) { up (&dev->sem); @@ -1015,8 +1007,6 @@ static void tower_disconnect (struct usb_interface *interface) up (&dev->sem); } - mutex_unlock (&disconnect_mutex); - info("LEGO USB Tower #%d now disconnected", (minor - LEGO_USB_TOWER_MINOR_BASE)); dbg(2, "%s: leave", __FUNCTION__); diff --git a/drivers/usb/misc/phidgetkit.c b/drivers/usb/misc/phidgetkit.c index 371bf2b1197d..aa9bcceabe74 100644 --- a/drivers/usb/misc/phidgetkit.c +++ b/drivers/usb/misc/phidgetkit.c @@ -305,9 +305,10 @@ static void interfacekit_irq(struct urb *urb) struct interfacekit *kit = urb->context; unsigned char *buffer = kit->data; int i, level, sensor; - int status; + int retval; + int status = urb->status; - switch (urb->status) { + switch (status) { case 0: /* success */ break; case -ECONNRESET: /* unlink */ @@ -377,11 +378,11 @@ static void interfacekit_irq(struct urb *urb) schedule_delayed_work(&kit->do_notify, 0); resubmit: - status = usb_submit_urb(urb, GFP_ATOMIC); - if (status) - err("can't resubmit intr, %s-%s/interfacekit0, status %d", + retval = usb_submit_urb(urb, GFP_ATOMIC); + if (retval) + err("can't resubmit intr, %s-%s/interfacekit0, retval %d", kit->udev->bus->bus_name, - kit->udev->devpath, status); + kit->udev->devpath, retval); } static void do_notify(struct work_struct *work) diff --git a/drivers/usb/misc/phidgetmotorcontrol.c b/drivers/usb/misc/phidgetmotorcontrol.c index 5727e1ea2f91..df0ebcdb9d6a 100644 --- a/drivers/usb/misc/phidgetmotorcontrol.c +++ b/drivers/usb/misc/phidgetmotorcontrol.c @@ -95,9 +95,10 @@ static void motorcontrol_irq(struct urb *urb) struct motorcontrol *mc = urb->context; unsigned char *buffer = mc->data; int i, level; - int status; + int retval; + int status = urb->status;; - switch (urb->status) { + switch (status) { case 0: /* success */ break; case -ECONNRESET: /* unlink */ @@ -151,12 +152,12 @@ static void motorcontrol_irq(struct urb *urb) schedule_delayed_work(&mc->do_notify, 0); resubmit: - status = usb_submit_urb(urb, GFP_ATOMIC); - if (status) + retval = usb_submit_urb(urb, GFP_ATOMIC); + if (retval) dev_err(&mc->intf->dev, - "can't resubmit intr, %s-%s/motorcontrol0, status %d", + "can't resubmit intr, %s-%s/motorcontrol0, retval %d", mc->udev->bus->bus_name, - mc->udev->devpath, status); + mc->udev->devpath, retval); } static void do_notify(struct work_struct *work) diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c index 6f8b134a79cb..b64ca91d9b02 100644 --- a/drivers/usb/misc/sisusbvga/sisusb.c +++ b/drivers/usb/misc/sisusbvga/sisusb.c @@ -72,8 +72,6 @@ MODULE_PARM_DESC(last, "Number of last console to take over (1 - MAX_NR_CONSOLES static struct usb_driver sisusb_driver; -DEFINE_MUTEX(disconnect_mutex); - static void sisusb_free_buffers(struct sisusb_usb_data *sisusb) { @@ -2511,31 +2509,24 @@ sisusb_open(struct inode *inode, struct file *file) struct usb_interface *interface; int subminor = iminor(inode); - mutex_lock(&disconnect_mutex); - if (!(interface = usb_find_interface(&sisusb_driver, subminor))) { printk(KERN_ERR "sisusb[%d]: Failed to find interface\n", subminor); - mutex_unlock(&disconnect_mutex); return -ENODEV; } - if (!(sisusb = usb_get_intfdata(interface))) { - mutex_unlock(&disconnect_mutex); + if (!(sisusb = usb_get_intfdata(interface))) return -ENODEV; - } mutex_lock(&sisusb->lock); if (!sisusb->present || !sisusb->ready) { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); return -ENODEV; } if (sisusb->isopen) { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); return -EBUSY; } @@ -2543,7 +2534,6 @@ sisusb_open(struct inode *inode, struct file *file) if (sisusb->sisusb_dev->speed == USB_SPEED_HIGH) { if (sisusb_init_gfxdevice(sisusb, 0)) { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); printk(KERN_ERR "sisusbvga[%d]: Failed to initialize " "device\n", @@ -2552,7 +2542,6 @@ sisusb_open(struct inode *inode, struct file *file) } } else { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); printk(KERN_ERR "sisusbvga[%d]: Device not attached to " "USB 2.0 hub\n", @@ -2570,8 +2559,6 @@ sisusb_open(struct inode *inode, struct file *file) mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); - return 0; } @@ -2601,12 +2588,8 @@ sisusb_release(struct inode *inode, struct file *file) struct sisusb_usb_data *sisusb; int myminor; - mutex_lock(&disconnect_mutex); - - if (!(sisusb = (struct sisusb_usb_data *)file->private_data)) { - mutex_unlock(&disconnect_mutex); + if (!(sisusb = (struct sisusb_usb_data *)file->private_data)) return -ENODEV; - } mutex_lock(&sisusb->lock); @@ -2626,8 +2609,6 @@ sisusb_release(struct inode *inode, struct file *file) /* decrement the usage count on our device */ kref_put(&sisusb->kref, sisusb_delete); - mutex_unlock(&disconnect_mutex); - return 0; } @@ -3383,12 +3364,9 @@ static void sisusb_disconnect(struct usb_interface *intf) sisusb_console_exit(sisusb); #endif - /* The above code doesn't need the disconnect - * semaphore to be down; its meaning is to - * protect all other routines from the disconnect - * case, not the other way round. - */ - mutex_lock(&disconnect_mutex); + minor = sisusb->minor; + + usb_deregister_dev(intf, &usb_sisusb_class); mutex_lock(&sisusb->lock); @@ -3396,12 +3374,8 @@ static void sisusb_disconnect(struct usb_interface *intf) if (!sisusb_wait_all_out_complete(sisusb)) sisusb_kill_all_busy(sisusb); - minor = sisusb->minor; - usb_set_intfdata(intf, NULL); - usb_deregister_dev(intf, &usb_sisusb_class); - #ifdef SISUSB_OLD_CONFIG_COMPAT if (sisusb->ioctl32registered) { int ret; @@ -3426,12 +3400,11 @@ static void sisusb_disconnect(struct usb_interface *intf) /* decrement our usage count */ kref_put(&sisusb->kref, sisusb_delete); - mutex_unlock(&disconnect_mutex); - printk(KERN_INFO "sisusbvga[%d]: Disconnected\n", minor); } static struct usb_device_id sisusb_table [] = { + { USB_DEVICE(0x0711, 0x0550) }, { USB_DEVICE(0x0711, 0x0900) }, { USB_DEVICE(0x0711, 0x0901) }, { USB_DEVICE(0x0711, 0x0902) }, diff --git a/drivers/usb/misc/sisusbvga/sisusb_con.c b/drivers/usb/misc/sisusbvga/sisusb_con.c index 5947afb0017e..8d0edc867f33 100644 --- a/drivers/usb/misc/sisusbvga/sisusb_con.c +++ b/drivers/usb/misc/sisusbvga/sisusb_con.c @@ -214,18 +214,13 @@ sisusbcon_init(struct vc_data *c, int init) * are set up/restored. */ - mutex_lock(&disconnect_mutex); - - if (!(sisusb = sisusb_get_sisusb(c->vc_num))) { - mutex_unlock(&disconnect_mutex); + if (!(sisusb = sisusb_get_sisusb(c->vc_num))) return; - } mutex_lock(&sisusb->lock); if (!sisusb_sisusb_valid(sisusb)) { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); return; } @@ -264,8 +259,6 @@ sisusbcon_init(struct vc_data *c, int init) mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); - if (init) { c->vc_cols = cols; c->vc_rows = rows; @@ -284,12 +277,8 @@ sisusbcon_deinit(struct vc_data *c) * and others, ie not under our control. */ - mutex_lock(&disconnect_mutex); - - if (!(sisusb = sisusb_get_sisusb(c->vc_num))) { - mutex_unlock(&disconnect_mutex); + if (!(sisusb = sisusb_get_sisusb(c->vc_num))) return; - } mutex_lock(&sisusb->lock); @@ -314,8 +303,6 @@ sisusbcon_deinit(struct vc_data *c) /* decrement the usage count on our sisusb */ kref_put(&sisusb->kref, sisusb_delete); - - mutex_unlock(&disconnect_mutex); } /* interface routine */ @@ -1490,14 +1477,11 @@ sisusb_console_init(struct sisusb_usb_data *sisusb, int first, int last) { int i, ret, minor = sisusb->minor; - mutex_lock(&disconnect_mutex); - mutex_lock(&sisusb->lock); /* Erm.. that should not happen */ if (sisusb->haveconsole || !sisusb->SiS_Pr) { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); return 1; } @@ -1508,14 +1492,12 @@ sisusb_console_init(struct sisusb_usb_data *sisusb, int first, int last) first > MAX_NR_CONSOLES || last > MAX_NR_CONSOLES) { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); return 1; } /* If gfxcore not initialized or no consoles given, quit graciously */ if (!sisusb->gfxinit || first < 1 || last < 1) { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); return 0; } @@ -1526,7 +1508,6 @@ sisusb_console_init(struct sisusb_usb_data *sisusb, int first, int last) /* Set up text mode (and upload default font) */ if (sisusb_reset_text_mode(sisusb, 1)) { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); printk(KERN_ERR "sisusbvga[%d]: Failed to set up text mode\n", minor); @@ -1550,7 +1531,6 @@ sisusb_console_init(struct sisusb_usb_data *sisusb, int first, int last) /* Allocate screen buffer */ if (!(sisusb->scrbuf = (unsigned long)vmalloc(sisusb->scrbuf_size))) { mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); printk(KERN_ERR "sisusbvga[%d]: Failed to allocate screen buffer\n", minor); @@ -1558,7 +1538,6 @@ sisusb_console_init(struct sisusb_usb_data *sisusb, int first, int last) } mutex_unlock(&sisusb->lock); - mutex_unlock(&disconnect_mutex); /* Now grab the desired console(s) */ ret = take_over_console(&sisusb_con, first - 1, last - 1, 0); diff --git a/drivers/usb/misc/sisusbvga/sisusb_init.h b/drivers/usb/misc/sisusbvga/sisusb_init.h index f05f83268af4..864bc0e96591 100644 --- a/drivers/usb/misc/sisusbvga/sisusb_init.h +++ b/drivers/usb/misc/sisusbvga/sisusb_init.h @@ -808,8 +808,6 @@ static const struct SiS_VCLKData SiSUSB_VCLKData[] = { 0x2b,0xc2, 35} /* 0x71 768@576@60 */ }; -extern struct mutex disconnect_mutex; - int SiSUSBSetMode(struct SiS_Private *SiS_Pr, unsigned short ModeNo); int SiSUSBSetVESAMode(struct SiS_Private *SiS_Pr, unsigned short VModeNo); diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c index 12bad8a205a7..719842032712 100644 --- a/drivers/usb/misc/usblcd.c +++ b/drivers/usb/misc/usblcd.c @@ -45,13 +45,13 @@ struct usb_lcd { struct kref kref; struct semaphore limit_sem; /* to stop writes at full throttle from * using up all RAM */ + struct usb_anchor submitted; /* URBs to wait for before suspend */ }; #define to_lcd_dev(d) container_of(d, struct usb_lcd, kref) #define USB_LCD_CONCURRENT_WRITES 5 static struct usb_driver lcd_driver; -static DEFINE_MUTEX(usb_lcd_open_mutex); static void lcd_delete(struct kref *kref) @@ -68,35 +68,35 @@ static int lcd_open(struct inode *inode, struct file *file) { struct usb_lcd *dev; struct usb_interface *interface; - int subminor; - int retval = 0; + int subminor, r; subminor = iminor(inode); - mutex_lock(&usb_lcd_open_mutex); interface = usb_find_interface(&lcd_driver, subminor); if (!interface) { err ("USBLCD: %s - error, can't find device for minor %d", __FUNCTION__, subminor); - retval = -ENODEV; - goto exit; + return -ENODEV; } dev = usb_get_intfdata(interface); - if (!dev) { - retval = -ENODEV; - goto exit; - } + if (!dev) + return -ENODEV; /* increment our usage count for the device */ kref_get(&dev->kref); + /* grab a power reference */ + r = usb_autopm_get_interface(interface); + if (r < 0) { + kref_put(&dev->kref, lcd_delete); + return r; + } + /* save our object in the file's private structure */ file->private_data = dev; -exit: - mutex_unlock(&usb_lcd_open_mutex); - return retval; + return 0; } static int lcd_release(struct inode *inode, struct file *file) @@ -108,6 +108,7 @@ static int lcd_release(struct inode *inode, struct file *file) return -ENODEV; /* decrement the count on our device */ + usb_autopm_put_interface(dev->interface); kref_put(&dev->kref, lcd_delete); return 0; } @@ -175,16 +176,17 @@ static int lcd_ioctl(struct inode *inode, struct file *file, unsigned int cmd, u static void lcd_write_bulk_callback(struct urb *urb) { struct usb_lcd *dev; + int status = urb->status; dev = (struct usb_lcd *)urb->context; /* sync/async unlink faults aren't errors */ - if (urb->status && - !(urb->status == -ENOENT || - urb->status == -ECONNRESET || - urb->status == -ESHUTDOWN)) { + if (status && + !(status == -ENOENT || + status == -ECONNRESET || + status == -ESHUTDOWN)) { dbg("USBLCD: %s - nonzero write bulk status received: %d", - __FUNCTION__, urb->status); + __FUNCTION__, status); } /* free up our allocated buffer */ @@ -233,12 +235,14 @@ static ssize_t lcd_write(struct file *file, const char __user * user_buffer, siz usb_sndbulkpipe(dev->udev, dev->bulk_out_endpointAddr), buf, count, lcd_write_bulk_callback, dev); urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + + usb_anchor_urb(urb, &dev->submitted); /* send the data out the bulk port */ retval = usb_submit_urb(urb, GFP_KERNEL); if (retval) { err("USBLCD: %s - failed submitting write urb, error %d", __FUNCTION__, retval); - goto error; + goto error_unanchor; } /* release our reference to this urb, the USB core will eventually free it entirely */ @@ -246,7 +250,8 @@ static ssize_t lcd_write(struct file *file, const char __user * user_buffer, siz exit: return count; - +error_unanchor: + usb_unanchor_urb(urb); error: usb_buffer_free(dev->udev, count, buf, urb->transfer_dma); usb_free_urb(urb); @@ -291,6 +296,7 @@ static int lcd_probe(struct usb_interface *interface, const struct usb_device_id } kref_init(&dev->kref); sema_init(&dev->limit_sem, USB_LCD_CONCURRENT_WRITES); + init_usb_anchor(&dev->submitted); dev->udev = usb_get_dev(interface_to_usbdev(interface)); dev->interface = interface; @@ -358,22 +364,41 @@ error: return retval; } +static void lcd_draw_down(struct usb_lcd *dev) +{ + int time; + + time = usb_wait_anchor_empty_timeout(&dev->submitted, 1000); + if (!time) + usb_kill_anchored_urbs(&dev->submitted); +} + +static int lcd_suspend(struct usb_interface *intf, pm_message_t message) +{ + struct usb_lcd *dev = usb_get_intfdata(intf); + + if (!dev) + return 0; + lcd_draw_down(dev); + return 0; +} + +static int lcd_resume (struct usb_interface *intf) +{ + return 0; +} + static void lcd_disconnect(struct usb_interface *interface) { struct usb_lcd *dev; int minor = interface->minor; - /* prevent skel_open() from racing skel_disconnect() */ - mutex_lock(&usb_lcd_open_mutex); - dev = usb_get_intfdata(interface); usb_set_intfdata(interface, NULL); /* give back our minor */ usb_deregister_dev(interface, &lcd_class); - mutex_unlock(&usb_lcd_open_mutex); - /* decrement our usage count */ kref_put(&dev->kref, lcd_delete); @@ -384,7 +409,10 @@ static struct usb_driver lcd_driver = { .name = "usblcd", .probe = lcd_probe, .disconnect = lcd_disconnect, + .suspend = lcd_suspend, + .resume = lcd_resume, .id_table = id_table, + .supports_autosuspend = 1, }; static int __init usb_lcd_init(void) diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index fb321864a92d..e901d31e051b 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -768,8 +768,8 @@ static void ctrl_complete (struct urb *urb) /* some faults are allowed, not required */ if (subcase->expected > 0 && ( - ((urb->status == -subcase->expected /* happened */ - || urb->status == 0)))) /* didn't */ + ((status == -subcase->expected /* happened */ + || status == 0)))) /* didn't */ status = 0; /* sometimes more than one fault is allowed */ else if (subcase->number == 12 && status == -EPIPE) diff --git a/drivers/usb/misc/uss720.c b/drivers/usb/misc/uss720.c index 1a60f9c473ad..2734fe2b9c43 100644 --- a/drivers/usb/misc/uss720.c +++ b/drivers/usb/misc/uss720.c @@ -111,12 +111,13 @@ static void async_complete(struct urb *urb) struct uss720_async_request *rq; struct parport *pp; struct parport_uss720_private *priv; + int status = urb->status; rq = urb->context; priv = rq->priv; pp = priv->pp; - if (urb->status) { - err("async_complete: urb error %d", urb->status); + if (status) { + err("async_complete: urb error %d", status); } else if (rq->dr.bRequest == 3) { memcpy(priv->reg, rq->reg, sizeof(priv->reg)); #if 0 diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c index 0af11a66207c..c03dfd7a9d36 100644 --- a/drivers/usb/mon/mon_bin.c +++ b/drivers/usb/mon/mon_bin.c @@ -4,7 +4,7 @@ * This is a binary format reader. * * Copyright (C) 2006 Paolo Abeni (paolo.abeni@email.it) - * Copyright (C) 2006 Pete Zaitcev (zaitcev@redhat.com) + * Copyright (C) 2006,2007 Pete Zaitcev (zaitcev@redhat.com) */ #include <linux/kernel.h> @@ -172,6 +172,7 @@ static inline struct mon_bin_hdr *MON_OFF2HDR(const struct mon_reader_bin *rp, #define MON_RING_EMPTY(rp) ((rp)->b_cnt == 0) +static struct class *mon_bin_class; static dev_t mon_bin_dev0; static struct cdev mon_bin_cdev; @@ -1144,10 +1145,38 @@ static void mon_free_buff(struct mon_pgmap *map, int npages) free_page((unsigned long) map[n].ptr); } +int mon_bin_add(struct mon_bus *mbus, const struct usb_bus *ubus) +{ + struct device *dev; + unsigned minor = ubus? ubus->busnum: 0; + + if (minor >= MON_BIN_MAX_MINOR) + return 0; + + dev = device_create(mon_bin_class, ubus? ubus->controller: NULL, + MKDEV(MAJOR(mon_bin_dev0), minor), "usbmon%d", minor); + if (IS_ERR(dev)) + return 0; + + mbus->classdev = dev; + return 1; +} + +void mon_bin_del(struct mon_bus *mbus) +{ + device_destroy(mon_bin_class, mbus->classdev->devt); +} + int __init mon_bin_init(void) { int rc; + mon_bin_class = class_create(THIS_MODULE, "usbmon"); + if (IS_ERR(mon_bin_class)) { + rc = PTR_ERR(mon_bin_class); + goto err_class; + } + rc = alloc_chrdev_region(&mon_bin_dev0, 0, MON_BIN_MAX_MINOR, "usbmon"); if (rc < 0) goto err_dev; @@ -1164,6 +1193,8 @@ int __init mon_bin_init(void) err_add: unregister_chrdev_region(mon_bin_dev0, MON_BIN_MAX_MINOR); err_dev: + class_destroy(mon_bin_class); +err_class: return rc; } @@ -1171,4 +1202,5 @@ void mon_bin_exit(void) { cdev_del(&mon_bin_cdev); unregister_chrdev_region(mon_bin_dev0, MON_BIN_MAX_MINOR); + class_destroy(mon_bin_class); } diff --git a/drivers/usb/mon/mon_main.c b/drivers/usb/mon/mon_main.c index 8977ec0d0f99..ce61d8b0fd86 100644 --- a/drivers/usb/mon/mon_main.c +++ b/drivers/usb/mon/mon_main.c @@ -220,6 +220,8 @@ static void mon_bus_remove(struct usb_bus *ubus) list_del(&mbus->bus_link); if (mbus->text_inited) mon_text_del(mbus); + if (mbus->bin_inited) + mon_bin_del(mbus); mon_dissolve(mbus, ubus); kref_put(&mbus->ref, mon_bus_drop); @@ -301,8 +303,8 @@ static void mon_bus_init(struct usb_bus *ubus) mbus->u_bus = ubus; ubus->mon_bus = mbus; - mbus->text_inited = mon_text_add(mbus, ubus->busnum); - // mon_bin_add(...) + mbus->text_inited = mon_text_add(mbus, ubus); + mbus->bin_inited = mon_bin_add(mbus, ubus); mutex_lock(&mon_lock); list_add_tail(&mbus->bus_link, &mon_buses); @@ -321,8 +323,8 @@ static void mon_bus0_init(void) spin_lock_init(&mbus->lock); INIT_LIST_HEAD(&mbus->r_list); - mbus->text_inited = mon_text_add(mbus, 0); - // mbus->bin_inited = mon_bin_add(mbus, 0); + mbus->text_inited = mon_text_add(mbus, NULL); + mbus->bin_inited = mon_bin_add(mbus, NULL); } /* @@ -403,6 +405,8 @@ static void __exit mon_exit(void) if (mbus->text_inited) mon_text_del(mbus); + if (mbus->bin_inited) + mon_bin_del(mbus); /* * This never happens, because the open/close paths in @@ -423,6 +427,8 @@ static void __exit mon_exit(void) mbus = &mon_bus0; if (mbus->text_inited) mon_text_del(mbus); + if (mbus->bin_inited) + mon_bin_del(mbus); mutex_unlock(&mon_lock); diff --git a/drivers/usb/mon/mon_text.c b/drivers/usb/mon/mon_text.c index ec0cc51e39ac..8f27a9e1c36b 100644 --- a/drivers/usb/mon/mon_text.c +++ b/drivers/usb/mon/mon_text.c @@ -340,7 +340,7 @@ static int mon_text_open(struct inode *inode, struct file *file) snprintf(rp->slab_name, SLAB_NAME_SZ, "mon_text_%p", rp); rp->e_slab = kmem_cache_create(rp->slab_name, sizeof(struct mon_event_text), sizeof(long), 0, - mon_text_ctor, NULL); + mon_text_ctor); if (rp->e_slab == NULL) { rc = -ENOMEM; goto err_slab; @@ -655,20 +655,24 @@ static const struct file_operations mon_fops_text_u = { .release = mon_text_release, }; -int mon_text_add(struct mon_bus *mbus, int busnum) +int mon_text_add(struct mon_bus *mbus, const struct usb_bus *ubus) { struct dentry *d; enum { NAMESZ = 10 }; char name[NAMESZ]; + int busnum = ubus? ubus->busnum: 0; int rc; - rc = snprintf(name, NAMESZ, "%dt", busnum); - if (rc <= 0 || rc >= NAMESZ) - goto err_print_t; - d = debugfs_create_file(name, 0600, mon_dir, mbus, &mon_fops_text_t); - if (d == NULL) - goto err_create_t; - mbus->dent_t = d; + if (ubus != NULL) { + rc = snprintf(name, NAMESZ, "%dt", busnum); + if (rc <= 0 || rc >= NAMESZ) + goto err_print_t; + d = debugfs_create_file(name, 0600, mon_dir, mbus, + &mon_fops_text_t); + if (d == NULL) + goto err_create_t; + mbus->dent_t = d; + } rc = snprintf(name, NAMESZ, "%du", busnum); if (rc <= 0 || rc >= NAMESZ) @@ -694,8 +698,10 @@ err_print_s: mbus->dent_u = NULL; err_create_u: err_print_u: - debugfs_remove(mbus->dent_t); - mbus->dent_t = NULL; + if (ubus != NULL) { + debugfs_remove(mbus->dent_t); + mbus->dent_t = NULL; + } err_create_t: err_print_t: return 0; @@ -704,7 +710,8 @@ err_print_t: void mon_text_del(struct mon_bus *mbus) { debugfs_remove(mbus->dent_u); - debugfs_remove(mbus->dent_t); + if (mbus->dent_t != NULL) + debugfs_remove(mbus->dent_t); debugfs_remove(mbus->dent_s); } diff --git a/drivers/usb/mon/usb_mon.h b/drivers/usb/mon/usb_mon.h index 13d63255283e..f68ad6d99ad7 100644 --- a/drivers/usb/mon/usb_mon.h +++ b/drivers/usb/mon/usb_mon.h @@ -20,9 +20,11 @@ struct mon_bus { struct usb_bus *u_bus; int text_inited; + int bin_inited; struct dentry *dent_s; /* Debugging file */ struct dentry *dent_t; /* Text interface file */ struct dentry *dent_u; /* Second text interface file */ + struct device *classdev; /* Device in usbmon class */ /* Ref */ int nreaders; /* Under mon_lock AND mbus->lock */ @@ -52,9 +54,10 @@ void mon_reader_del(struct mon_bus *mbus, struct mon_reader *r); struct mon_bus *mon_bus_lookup(unsigned int num); -int /*bool*/ mon_text_add(struct mon_bus *mbus, int busnum); +int /*bool*/ mon_text_add(struct mon_bus *mbus, const struct usb_bus *ubus); void mon_text_del(struct mon_bus *mbus); -// void mon_bin_add(struct mon_bus *); +int /*bool*/ mon_bin_add(struct mon_bus *mbus, const struct usb_bus *ubus); +void mon_bin_del(struct mon_bus *mbus); int __init mon_text_init(void); void mon_text_exit(void); diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig index 3efe67092f15..43d6db696f90 100644 --- a/drivers/usb/serial/Kconfig +++ b/drivers/usb/serial/Kconfig @@ -464,6 +464,16 @@ config USB_SERIAL_PL2303 To compile this driver as a module, choose M here: the module will be called pl2303. +config USB_SERIAL_OTI6858 + tristate "USB Ours Technology Inc. OTi-6858 USB To RS232 Bridge Controller (EXPERIMENTAL)" + depends on USB_SERIAL + help + Say Y here if you want to use the OTi-6858 single port USB to serial + converter device. + + To compile this driver as a module, choose M here: the + module will be called oti6858. + config USB_SERIAL_HP4X tristate "USB HP4x Calculators support" depends on USB_SERIAL diff --git a/drivers/usb/serial/Makefile b/drivers/usb/serial/Makefile index 61166ad450e6..07a976eca6b7 100644 --- a/drivers/usb/serial/Makefile +++ b/drivers/usb/serial/Makefile @@ -40,6 +40,7 @@ obj-$(CONFIG_USB_SERIAL_MOS7840) += mos7840.o obj-$(CONFIG_USB_SERIAL_NAVMAN) += navman.o obj-$(CONFIG_USB_SERIAL_OMNINET) += omninet.o obj-$(CONFIG_USB_SERIAL_OPTION) += option.o +obj-$(CONFIG_USB_SERIAL_OTI6858) += oti6858.o obj-$(CONFIG_USB_SERIAL_PL2303) += pl2303.o obj-$(CONFIG_USB_SERIAL_SAFE) += safe_serial.o obj-$(CONFIG_USB_SERIAL_SIERRAWIRELESS) += sierra.o diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c index fbc8c27d5d99..1cd29cd6bd00 100644 --- a/drivers/usb/serial/aircable.c +++ b/drivers/usb/serial/aircable.c @@ -411,12 +411,13 @@ static int aircable_write(struct usb_serial_port *port, static void aircable_write_bulk_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; + int status = urb->status; int result; - dbg("%s - urb->status: %d", __FUNCTION__ , urb->status); + dbg("%s - urb status: %d", __FUNCTION__ , status); /* This has been taken from cypress_m8.c cypress_write_int_callback */ - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -425,14 +426,14 @@ static void aircable_write_bulk_callback(struct urb *urb) case -ESHUTDOWN: /* this urb is terminated, clean up */ dbg("%s - urb shutting down with status: %d", - __FUNCTION__, urb->status); + __FUNCTION__, status); port->write_urb_busy = 0; return; default: /* error in the urb, so we have to resubmit it */ dbg("%s - Overflow in write", __FUNCTION__); dbg("%s - nonzero write bulk status received: %d", - __FUNCTION__, urb->status); + __FUNCTION__, status); port->write_urb->transfer_buffer_length = 1; port->write_urb->dev = port->serial->dev; result = usb_submit_urb(port->write_urb, GFP_ATOMIC); @@ -457,16 +458,17 @@ static void aircable_read_bulk_callback(struct urb *urb) unsigned long no_packages, remaining, package_length, i; int result, shift = 0; unsigned char *temp; + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); - if (urb->status) { - dbg("%s - urb->status = %d", __FUNCTION__, urb->status); + if (status) { + dbg("%s - urb status = %d", __FUNCTION__, status); if (!port->open_count) { dbg("%s - port is closed, exiting.", __FUNCTION__); return; } - if (urb->status == -EPROTO) { + if (status == -EPROTO) { dbg("%s - caught -EPROTO, resubmitting the urb", __FUNCTION__); usb_fill_bulk_urb(port->read_urb, port->serial->dev, diff --git a/drivers/usb/serial/airprime.c b/drivers/usb/serial/airprime.c index 39a498362594..77bb893bf2e9 100644 --- a/drivers/usb/serial/airprime.c +++ b/drivers/usb/serial/airprime.c @@ -18,7 +18,6 @@ static struct usb_device_id id_table [] = { { USB_DEVICE(0x0c88, 0x17da) }, /* Kyocera Wireless KPC650/Passport */ - { USB_DEVICE(0x413c, 0x8115) }, /* Dell Wireless HSDPA 5500 */ { }, }; MODULE_DEVICE_TABLE(usb, id_table); @@ -82,12 +81,13 @@ static void airprime_read_bulk_callback(struct urb *urb) unsigned char *data = urb->transfer_buffer; struct tty_struct *tty; int result; + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); - if (urb->status) { + if (status) { dbg("%s - nonzero read bulk status received: %d", - __FUNCTION__, urb->status); + __FUNCTION__, status); return; } usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data); @@ -109,6 +109,7 @@ static void airprime_write_bulk_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; struct airprime_private *priv = usb_get_serial_port_data(port); + int status = urb->status; unsigned long flags; dbg("%s - port %d", __FUNCTION__, port->number); @@ -116,9 +117,9 @@ static void airprime_write_bulk_callback(struct urb *urb) /* free up the transfer buffer, as usb_free_urb() does not do this */ kfree (urb->transfer_buffer); - if (urb->status) + if (status) dbg("%s - nonzero write bulk status received: %d", - __FUNCTION__, urb->status); + __FUNCTION__, status); spin_lock_irqsave(&priv->lock, flags); --priv->outstanding_urbs; spin_unlock_irqrestore(&priv->lock, flags); diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c index fe437125f14b..c9fd486c1c7d 100644 --- a/drivers/usb/serial/ark3116.c +++ b/drivers/usb/serial/ark3116.c @@ -172,7 +172,7 @@ static void ark3116_set_termios(struct usb_serial_port *port, dbg("%s - port %d", __FUNCTION__, port->number); - if ((!port->tty) || (!port->tty->termios)) { + if (!port->tty || !port->tty->termios) { dbg("%s - no tty structures", __FUNCTION__); return; } @@ -188,16 +188,6 @@ static void ark3116_set_termios(struct usb_serial_port *port, cflag = port->tty->termios->c_cflag; - /* check that they really want us to change something: */ - if (old_termios) { - if ((cflag == old_termios->c_cflag) && - (RELEVANT_IFLAG(port->tty->termios->c_iflag) == - RELEVANT_IFLAG(old_termios->c_iflag))) { - dbg("%s - nothing to change...", __FUNCTION__); - return; - } - } - buf = kmalloc(1, GFP_KERNEL); if (!buf) { dbg("error kmalloc"); @@ -220,7 +210,7 @@ static void ark3116_set_termios(struct usb_serial_port *port, dbg("setting CS7"); break; default: - err("CSIZE was set but not CS5-CS8, using CS8!"); + dbg("CSIZE was set but not CS5-CS8, using CS8!"); /* fall through */ case CS8: config |= 0x03; @@ -251,38 +241,33 @@ static void ark3116_set_termios(struct usb_serial_port *port, } /* set baudrate */ - baud = 0; - switch (cflag & CBAUD) { - case B0: - err("can't set 0 baud, using 9600 instead"); + baud = tty_get_baud_rate(port->tty); + + switch (baud) { + case 75: + case 150: + case 300: + case 600: + case 1200: + case 1800: + case 2400: + case 4800: + case 9600: + case 19200: + case 38400: + case 57600: + case 115200: + case 230400: + case 460800: break; - case B75: baud = 75; break; - case B150: baud = 150; break; - case B300: baud = 300; break; - case B600: baud = 600; break; - case B1200: baud = 1200; break; - case B1800: baud = 1800; break; - case B2400: baud = 2400; break; - case B4800: baud = 4800; break; - case B9600: baud = 9600; break; - case B19200: baud = 19200; break; - case B38400: baud = 38400; break; - case B57600: baud = 57600; break; - case B115200: baud = 115200; break; - case B230400: baud = 230400; break; - case B460800: baud = 460800; break; + /* set 9600 as default (if given baudrate is invalid for example) */ default: - dbg("does not support the baudrate requested (fix it)"); - break; + baud = 9600; } - /* set 9600 as default (if given baudrate is invalid for example) */ - if (baud == 0) - baud = 9600; - /* * found by try'n'error, be careful, maybe there are other options - * for multiplicator etc! + * for multiplicator etc! (3.5 for example) */ if (baud == 460800) /* strange, for 460800 the formula is wrong diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c index 3b800d277c4b..86724e885704 100644 --- a/drivers/usb/serial/belkin_sa.c +++ b/drivers/usb/serial/belkin_sa.c @@ -255,9 +255,10 @@ static void belkin_sa_read_int_callback (struct urb *urb) struct belkin_sa_private *priv; unsigned char *data = urb->transfer_buffer; int retval; + int status = urb->status; unsigned long flags; - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -265,10 +266,12 @@ static void belkin_sa_read_int_callback (struct urb *urb) case -ENOENT: case -ESHUTDOWN: /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); + dbg("%s - urb shutting down with status: %d", + __FUNCTION__, status); return; default: - dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); + dbg("%s - nonzero urb status received: %d", + __FUNCTION__, status); goto exit; } @@ -346,6 +349,7 @@ static void belkin_sa_set_termios (struct usb_serial_port *port, struct ktermios unsigned long flags; unsigned long control_state; int bad_flow_control; + speed_t baud; if ((!port->tty) || (!port->tty->termios)) { dbg ("%s - no tty or termios structure", __FUNCTION__); @@ -361,16 +365,8 @@ static void belkin_sa_set_termios (struct usb_serial_port *port, struct ktermios bad_flow_control = priv->bad_flow_control; spin_unlock_irqrestore(&priv->lock, flags); - /* check that they really want us to change something */ - if (old_termios) { - if ((cflag == old_termios->c_cflag) && - (RELEVANT_IFLAG(port->tty->termios->c_iflag) == RELEVANT_IFLAG(old_termios->c_iflag))) { - dbg("%s - nothing to change...", __FUNCTION__); - return; - } - old_iflag = old_termios->c_iflag; - old_cflag = old_termios->c_cflag; - } + old_iflag = old_termios->c_iflag; + old_cflag = old_termios->c_cflag; /* Set the baud rate */ if( (cflag&CBAUD) != (old_cflag&CBAUD) ) { @@ -384,38 +380,34 @@ static void belkin_sa_set_termios (struct usb_serial_port *port, struct ktermios if (BSA_USB_CMD(BELKIN_SA_SET_RTS_REQUEST, 1) < 0) err("Set RTS error"); } + } - switch(cflag & CBAUD) { - case B0: /* handled below */ break; - case B300: urb_value = BELKIN_SA_BAUD(300); break; - case B600: urb_value = BELKIN_SA_BAUD(600); break; - case B1200: urb_value = BELKIN_SA_BAUD(1200); break; - case B2400: urb_value = BELKIN_SA_BAUD(2400); break; - case B4800: urb_value = BELKIN_SA_BAUD(4800); break; - case B9600: urb_value = BELKIN_SA_BAUD(9600); break; - case B19200: urb_value = BELKIN_SA_BAUD(19200); break; - case B38400: urb_value = BELKIN_SA_BAUD(38400); break; - case B57600: urb_value = BELKIN_SA_BAUD(57600); break; - case B115200: urb_value = BELKIN_SA_BAUD(115200); break; - case B230400: urb_value = BELKIN_SA_BAUD(230400); break; - default: err("BELKIN USB Serial Adapter: unsupported baudrate request, using default of 9600"); - urb_value = BELKIN_SA_BAUD(9600); break; - } - if ((cflag & CBAUD) != B0 ) { - if (BSA_USB_CMD(BELKIN_SA_SET_BAUDRATE_REQUEST, urb_value) < 0) - err("Set baudrate error"); - } else { - /* Disable flow control */ - if (BSA_USB_CMD(BELKIN_SA_SET_FLOW_CTRL_REQUEST, BELKIN_SA_FLOW_NONE) < 0) - err("Disable flowcontrol error"); - - /* Drop RTS and DTR */ - control_state &= ~(TIOCM_DTR | TIOCM_RTS); - if (BSA_USB_CMD(BELKIN_SA_SET_DTR_REQUEST, 0) < 0) - err("DTR LOW error"); - if (BSA_USB_CMD(BELKIN_SA_SET_RTS_REQUEST, 0) < 0) - err("RTS LOW error"); - } + baud = tty_get_baud_rate(port->tty); + if (baud == 0) { + dbg("%s - tty_get_baud_rate says 0 baud", __FUNCTION__); + return; + } + urb_value = BELKIN_SA_BAUD(baud); + /* Clip to maximum speed */ + if (urb_value == 0) + urb_value = 1; + /* Turn it back into a resulting real baud rate */ + baud = BELKIN_SA_BAUD(urb_value); + /* FIXME: Once the tty updates are done then push this back to the tty */ + + if ((cflag & CBAUD) != B0 ) { + if (BSA_USB_CMD(BELKIN_SA_SET_BAUDRATE_REQUEST, urb_value) < 0) + err("Set baudrate error"); + } else { + /* Disable flow control */ + if (BSA_USB_CMD(BELKIN_SA_SET_FLOW_CTRL_REQUEST, BELKIN_SA_FLOW_NONE) < 0) + err("Disable flowcontrol error"); + /* Drop RTS and DTR */ + control_state &= ~(TIOCM_DTR | TIOCM_RTS); + if (BSA_USB_CMD(BELKIN_SA_SET_DTR_REQUEST, 0) < 0) + err("DTR LOW error"); + if (BSA_USB_CMD(BELKIN_SA_SET_RTS_REQUEST, 0) < 0) + err("RTS LOW error"); } /* set the parity */ @@ -435,7 +427,7 @@ static void belkin_sa_set_termios (struct usb_serial_port *port, struct ktermios case CS6: urb_value = BELKIN_SA_DATA_BITS(6); break; case CS7: urb_value = BELKIN_SA_DATA_BITS(7); break; case CS8: urb_value = BELKIN_SA_DATA_BITS(8); break; - default: err("CSIZE was not CS5-CS8, using default of 8"); + default: dbg("CSIZE was not CS5-CS8, using default of 8"); urb_value = BELKIN_SA_DATA_BITS(8); break; } diff --git a/drivers/usb/serial/bus.c b/drivers/usb/serial/bus.c index c08a38402b93..a47a24f8820d 100644 --- a/drivers/usb/serial/bus.c +++ b/drivers/usb/serial/bus.c @@ -138,7 +138,7 @@ static void free_dynids(struct usb_serial_driver *drv) static struct driver_attribute drv_attrs[] = { __ATTR_NULL, }; -static inline void free_dynids(struct usb_driver *drv) +static inline void free_dynids(struct usb_serial_driver *drv) { } #endif diff --git a/drivers/usb/serial/cp2101.c b/drivers/usb/serial/cp2101.c index e831cb7f64fd..33f6ee50b8d3 100644 --- a/drivers/usb/serial/cp2101.c +++ b/drivers/usb/serial/cp2101.c @@ -356,7 +356,7 @@ static void cp2101_get_termios (struct usb_serial_port *port) dbg("%s - port %d", __FUNCTION__, port->number); - if ((!port->tty) || (!port->tty->termios)) { + if (!port->tty || !port->tty->termios) { dbg("%s - no tty structures", __FUNCTION__); return; } @@ -526,50 +526,35 @@ static void cp2101_set_termios (struct usb_serial_port *port, return; } cflag = port->tty->termios->c_cflag; - - /* Check that they really want us to change something */ - if (old_termios) { - if ((cflag == old_termios->c_cflag) && - (RELEVANT_IFLAG(port->tty->termios->c_iflag) - == RELEVANT_IFLAG(old_termios->c_iflag))) { - dbg("%s - nothing to change...", __FUNCTION__); - return; - } - - old_cflag = old_termios->c_cflag; - } + old_cflag = old_termios->c_cflag; + baud = tty_get_baud_rate(port->tty); /* If the baud rate is to be updated*/ - if ((cflag & CBAUD) != (old_cflag & CBAUD)) { - switch (cflag & CBAUD) { - /* - * The baud rates which are commented out below - * appear to be supported by the device - * but are non-standard - */ - case B0: baud = 0; break; - case B600: baud = 600; break; - case B1200: baud = 1200; break; - case B1800: baud = 1800; break; - case B2400: baud = 2400; break; - case B4800: baud = 4800; break; - /*case B7200: baud = 7200; break;*/ - case B9600: baud = 9600; break; - /*ase B14400: baud = 14400; break;*/ - case B19200: baud = 19200; break; - /*case B28800: baud = 28800; break;*/ - case B38400: baud = 38400; break; - /*case B55854: baud = 55054; break;*/ - case B57600: baud = 57600; break; - case B115200: baud = 115200; break; - /*case B127117: baud = 127117; break;*/ - case B230400: baud = 230400; break; - case B460800: baud = 460800; break; - case B921600: baud = 921600; break; - /*case B3686400: baud = 3686400; break;*/ + if (baud != tty_termios_baud_rate(old_termios)) { + switch (baud) { + case 0: + case 600: + case 1200: + case 1800: + case 2400: + case 4800: + case 7200: + case 9600: + case 14400: + case 19200: + case 28800: + case 38400: + case 55854: + case 57600: + case 115200: + case 127117: + case 230400: + case 460800: + case 921600: + case 3686400: + break; default: - dev_err(&port->dev, "cp2101 driver does not " - "support the baudrate requested\n"); + baud = 9600; break; } diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c index 4167753ed31f..4353df92487f 100644 --- a/drivers/usb/serial/cyberjack.c +++ b/drivers/usb/serial/cyberjack.c @@ -305,12 +305,13 @@ static void cyberjack_read_int_callback( struct urb *urb ) struct usb_serial_port *port = (struct usb_serial_port *)urb->context; struct cyberjack_private *priv = usb_get_serial_port_data(port); unsigned char *data = urb->transfer_buffer; + int status = urb->status; int result; dbg("%s - port %d", __FUNCTION__, port->number); /* the urb might have been killed. */ - if (urb->status) + if (status) return; usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data); @@ -365,12 +366,14 @@ static void cyberjack_read_bulk_callback (struct urb *urb) unsigned char *data = urb->transfer_buffer; short todo; int result; + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); - + usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data); - if (urb->status) { - dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero read bulk status received: %d", + __FUNCTION__, status); return; } @@ -411,12 +414,14 @@ static void cyberjack_write_bulk_callback (struct urb *urb) { struct usb_serial_port *port = (struct usb_serial_port *)urb->context; struct cyberjack_private *priv = usb_get_serial_port_data(port); + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); port->write_urb_busy = 0; - if (urb->status) { - dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero write bulk status received: %d", + __FUNCTION__, status); return; } diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index 57b8e27285fc..163386336a5d 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -1275,10 +1275,11 @@ static void cypress_read_int_callback(struct urb *urb) int bytes = 0; int result; int i = 0; + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); - switch (urb->status) { + switch (status) { case 0: /* success */ break; case -ECONNRESET: @@ -1292,7 +1293,7 @@ static void cypress_read_int_callback(struct urb *urb) default: /* something ugly is going on... */ dev_err(&urb->dev->dev,"%s - unexpected nonzero read status received: %d\n", - __FUNCTION__,urb->status); + __FUNCTION__, status); cypress_set_dead(port); return; } @@ -1419,10 +1420,11 @@ static void cypress_write_int_callback(struct urb *urb) struct usb_serial_port *port = (struct usb_serial_port *)urb->context; struct cypress_private *priv = usb_get_serial_port_data(port); int result; + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); - - switch (urb->status) { + + switch (status) { case 0: /* success */ break; @@ -1430,7 +1432,8 @@ static void cypress_write_int_callback(struct urb *urb) case -ENOENT: case -ESHUTDOWN: /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); + dbg("%s - urb shutting down with status: %d", + __FUNCTION__, status); priv->write_urb_in_use = 0; return; case -EPIPE: /* no break needed; clear halt and resubmit */ @@ -1438,7 +1441,8 @@ static void cypress_write_int_callback(struct urb *urb) break; usb_clear_halt(port->serial->dev, 0x02); /* error in the urb, so we have to resubmit it */ - dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); + dbg("%s - nonzero write bulk status received: %d", + __FUNCTION__, status); port->interrupt_out_urb->transfer_buffer_length = 1; port->interrupt_out_urb->dev = port->serial->dev; result = usb_submit_urb(port->interrupt_out_urb, GFP_ATOMIC); @@ -1450,7 +1454,7 @@ static void cypress_write_int_callback(struct urb *urb) break; default: dev_err(&urb->dev->dev,"%s - unexpected nonzero write status received: %d\n", - __FUNCTION__,urb->status); + __FUNCTION__, status); cypress_set_dead(port); break; } diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index d78692c01cfa..dab2e66d111d 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -416,9 +416,6 @@ struct digi_port { int dp_port_num; int dp_out_buf_len; unsigned char dp_out_buf[DIGI_OUT_BUF_SIZE]; - int dp_in_buf_len; - unsigned char dp_in_buf[DIGI_IN_BUF_SIZE]; - unsigned char dp_in_flag_buf[DIGI_IN_BUF_SIZE]; int dp_write_urb_in_use; unsigned int dp_modem_signals; wait_queue_head_t dp_modem_change_wait; @@ -436,38 +433,38 @@ struct digi_port { /* Local Function Declarations */ -static void digi_wakeup_write( struct usb_serial_port *port ); +static void digi_wakeup_write(struct usb_serial_port *port); static void digi_wakeup_write_lock(struct work_struct *work); -static int digi_write_oob_command( struct usb_serial_port *port, - unsigned char *buf, int count, int interruptible ); -static int digi_write_inb_command( struct usb_serial_port *port, - unsigned char *buf, int count, unsigned long timeout ); -static int digi_set_modem_signals( struct usb_serial_port *port, - unsigned int modem_signals, int interruptible ); -static int digi_transmit_idle( struct usb_serial_port *port, - unsigned long timeout ); +static int digi_write_oob_command(struct usb_serial_port *port, + unsigned char *buf, int count, int interruptible); +static int digi_write_inb_command(struct usb_serial_port *port, + unsigned char *buf, int count, unsigned long timeout); +static int digi_set_modem_signals(struct usb_serial_port *port, + unsigned int modem_signals, int interruptible); +static int digi_transmit_idle(struct usb_serial_port *port, + unsigned long timeout); static void digi_rx_throttle (struct usb_serial_port *port); static void digi_rx_unthrottle (struct usb_serial_port *port); -static void digi_set_termios( struct usb_serial_port *port, - struct ktermios *old_termios ); -static void digi_break_ctl( struct usb_serial_port *port, int break_state ); -static int digi_ioctl( struct usb_serial_port *port, struct file *file, - unsigned int cmd, unsigned long arg ); -static int digi_tiocmget( struct usb_serial_port *port, struct file *file ); -static int digi_tiocmset( struct usb_serial_port *port, struct file *file, - unsigned int set, unsigned int clear ); -static int digi_write( struct usb_serial_port *port, const unsigned char *buf, int count ); -static void digi_write_bulk_callback( struct urb *urb ); -static int digi_write_room( struct usb_serial_port *port ); -static int digi_chars_in_buffer( struct usb_serial_port *port ); -static int digi_open( struct usb_serial_port *port, struct file *filp ); -static void digi_close( struct usb_serial_port *port, struct file *filp ); -static int digi_startup_device( struct usb_serial *serial ); -static int digi_startup( struct usb_serial *serial ); -static void digi_shutdown( struct usb_serial *serial ); -static void digi_read_bulk_callback( struct urb *urb ); -static int digi_read_inb_callback( struct urb *urb ); -static int digi_read_oob_callback( struct urb *urb ); +static void digi_set_termios(struct usb_serial_port *port, + struct ktermios *old_termios); +static void digi_break_ctl(struct usb_serial_port *port, int break_state); +static int digi_ioctl(struct usb_serial_port *port, struct file *file, + unsigned int cmd, unsigned long arg); +static int digi_tiocmget(struct usb_serial_port *port, struct file *file); +static int digi_tiocmset(struct usb_serial_port *port, struct file *file, + unsigned int set, unsigned int clear); +static int digi_write(struct usb_serial_port *port, const unsigned char *buf, int count); +static void digi_write_bulk_callback(struct urb *urb); +static int digi_write_room(struct usb_serial_port *port); +static int digi_chars_in_buffer(struct usb_serial_port *port); +static int digi_open(struct usb_serial_port *port, struct file *filp); +static void digi_close(struct usb_serial_port *port, struct file *filp); +static int digi_startup_device(struct usb_serial *serial); +static int digi_startup(struct usb_serial *serial); +static void digi_shutdown(struct usb_serial *serial); +static void digi_read_bulk_callback(struct urb *urb); +static int digi_read_inb_callback(struct urb *urb); +static int digi_read_oob_callback(struct urb *urb); /* Statics */ @@ -579,9 +576,9 @@ static struct usb_serial_driver digi_acceleport_4_device = { * with the equivalent code. */ -static inline long cond_wait_interruptible_timeout_irqrestore( +static long cond_wait_interruptible_timeout_irqrestore( wait_queue_head_t *q, long timeout, - spinlock_t *lock, unsigned long flags ) + spinlock_t *lock, unsigned long flags) { DEFINE_WAIT(wait); @@ -603,18 +600,16 @@ static inline long cond_wait_interruptible_timeout_irqrestore( static void digi_wakeup_write_lock(struct work_struct *work) { - struct digi_port *priv = - container_of(work, struct digi_port, dp_wakeup_work); + struct digi_port *priv = container_of(work, struct digi_port, dp_wakeup_work); struct usb_serial_port *port = priv->dp_port; unsigned long flags; - - spin_lock_irqsave( &priv->dp_port_lock, flags ); - digi_wakeup_write( port ); - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); + digi_wakeup_write(port); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); } -static void digi_wakeup_write( struct usb_serial_port *port ) +static void digi_wakeup_write(struct usb_serial_port *port) { tty_wakeup(port->tty); } @@ -631,8 +626,8 @@ static void digi_wakeup_write( struct usb_serial_port *port ) * returned by usb_submit_urb. */ -static int digi_write_oob_command( struct usb_serial_port *port, - unsigned char *buf, int count, int interruptible ) +static int digi_write_oob_command(struct usb_serial_port *port, + unsigned char *buf, int count, int interruptible) { int ret = 0; @@ -641,49 +636,37 @@ static int digi_write_oob_command( struct usb_serial_port *port, struct digi_port *oob_priv = usb_get_serial_port_data(oob_port); unsigned long flags = 0; + dbg("digi_write_oob_command: TOP: port=%d, count=%d", oob_priv->dp_port_num, count); -dbg( "digi_write_oob_command: TOP: port=%d, count=%d", oob_priv->dp_port_num, count ); - - spin_lock_irqsave( &oob_priv->dp_port_lock, flags ); - - while( count > 0 ) { - - while( oob_port->write_urb->status == -EINPROGRESS - || oob_priv->dp_write_urb_in_use ) { + spin_lock_irqsave(&oob_priv->dp_port_lock, flags); + while(count > 0) { + while(oob_port->write_urb->status == -EINPROGRESS + || oob_priv->dp_write_urb_in_use) { cond_wait_interruptible_timeout_irqrestore( &oob_port->write_wait, DIGI_RETRY_TIMEOUT, - &oob_priv->dp_port_lock, flags ); - if( interruptible && signal_pending(current) ) { - return( -EINTR ); - } - spin_lock_irqsave( &oob_priv->dp_port_lock, flags ); + &oob_priv->dp_port_lock, flags); + if (interruptible && signal_pending(current)) + return -EINTR; + spin_lock_irqsave(&oob_priv->dp_port_lock, flags); } /* len must be a multiple of 4, so commands are not split */ - len = min(count, oob_port->bulk_out_size ); - if( len > 4 ) + len = min(count, oob_port->bulk_out_size); + if (len > 4) len &= ~3; - - memcpy( oob_port->write_urb->transfer_buffer, buf, len ); + memcpy(oob_port->write_urb->transfer_buffer, buf, len); oob_port->write_urb->transfer_buffer_length = len; oob_port->write_urb->dev = port->serial->dev; - - if( (ret=usb_submit_urb(oob_port->write_urb, GFP_ATOMIC)) == 0 ) { + if ((ret = usb_submit_urb(oob_port->write_urb, GFP_ATOMIC)) == 0) { oob_priv->dp_write_urb_in_use = 1; count -= len; buf += len; } - - } - - spin_unlock_irqrestore( &oob_priv->dp_port_lock, flags ); - - if( ret ) { - err("%s: usb_submit_urb failed, ret=%d", __FUNCTION__, - ret ); } - - return( ret ); + spin_unlock_irqrestore(&oob_priv->dp_port_lock, flags); + if (ret) + err("%s: usb_submit_urb failed, ret=%d", __FUNCTION__, ret); + return ret; } @@ -700,63 +683,58 @@ dbg( "digi_write_oob_command: TOP: port=%d, count=%d", oob_priv->dp_port_num, co * error returned by digi_write. */ -static int digi_write_inb_command( struct usb_serial_port *port, - unsigned char *buf, int count, unsigned long timeout ) +static int digi_write_inb_command(struct usb_serial_port *port, + unsigned char *buf, int count, unsigned long timeout) { - int ret = 0; int len; struct digi_port *priv = usb_get_serial_port_data(port); unsigned char *data = port->write_urb->transfer_buffer; unsigned long flags = 0; + dbg("digi_write_inb_command: TOP: port=%d, count=%d", + priv->dp_port_num, count); -dbg( "digi_write_inb_command: TOP: port=%d, count=%d", priv->dp_port_num, -count ); - - if( timeout ) + if (timeout) timeout += jiffies; else timeout = ULONG_MAX; - spin_lock_irqsave( &priv->dp_port_lock, flags ); - - while( count > 0 && ret == 0 ) { - - while( (port->write_urb->status == -EINPROGRESS - || priv->dp_write_urb_in_use) && time_before(jiffies, timeout)) { + spin_lock_irqsave(&priv->dp_port_lock, flags); + while(count > 0 && ret == 0) { + while((port->write_urb->status == -EINPROGRESS + || priv->dp_write_urb_in_use) && time_before(jiffies, timeout)) { cond_wait_interruptible_timeout_irqrestore( &port->write_wait, DIGI_RETRY_TIMEOUT, - &priv->dp_port_lock, flags ); - if( signal_pending(current) ) { - return( -EINTR ); - } - spin_lock_irqsave( &priv->dp_port_lock, flags ); + &priv->dp_port_lock, flags); + if (signal_pending(current)) + return -EINTR; + spin_lock_irqsave(&priv->dp_port_lock, flags); } /* len must be a multiple of 4 and small enough to */ /* guarantee the write will send buffered data first, */ /* so commands are in order with data and not split */ - len = min(count, port->bulk_out_size-2-priv->dp_out_buf_len ); - if( len > 4 ) + len = min(count, port->bulk_out_size-2-priv->dp_out_buf_len); + if (len > 4) len &= ~3; /* write any buffered data first */ - if( priv->dp_out_buf_len > 0 ) { + if (priv->dp_out_buf_len > 0) { data[0] = DIGI_CMD_SEND_DATA; data[1] = priv->dp_out_buf_len; - memcpy( data+2, priv->dp_out_buf, - priv->dp_out_buf_len ); - memcpy( data+2+priv->dp_out_buf_len, buf, len ); + memcpy(data + 2, priv->dp_out_buf, + priv->dp_out_buf_len); + memcpy(data + 2 + priv->dp_out_buf_len, buf, len); port->write_urb->transfer_buffer_length - = priv->dp_out_buf_len+2+len; + = priv->dp_out_buf_len + 2 + len; } else { - memcpy( data, buf, len ); + memcpy(data, buf, len); port->write_urb->transfer_buffer_length = len; } port->write_urb->dev = port->serial->dev; - if( (ret=usb_submit_urb(port->write_urb, GFP_ATOMIC)) == 0 ) { + if ((ret = usb_submit_urb(port->write_urb, GFP_ATOMIC)) == 0) { priv->dp_write_urb_in_use = 1; priv->dp_out_buf_len = 0; count -= len; @@ -764,16 +742,12 @@ count ); } } + spin_unlock_irqrestore(&priv->dp_port_lock, flags); - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - - if( ret ) { - err("%s: usb_submit_urb failed, ret=%d, port=%d", __FUNCTION__, - ret, priv->dp_port_num ); - } - - return( ret ); - + if (ret) + err("%s: usb_submit_urb failed, ret=%d, port=%d", + __FUNCTION__, ret, priv->dp_port_num); + return ret; } @@ -787,8 +761,8 @@ count ); * returned by usb_submit_urb. */ -static int digi_set_modem_signals( struct usb_serial_port *port, - unsigned int modem_signals, int interruptible ) +static int digi_set_modem_signals(struct usb_serial_port *port, + unsigned int modem_signals, int interruptible) { int ret; @@ -799,60 +773,47 @@ static int digi_set_modem_signals( struct usb_serial_port *port, unsigned long flags = 0; -dbg( "digi_set_modem_signals: TOP: port=%d, modem_signals=0x%x", -port_priv->dp_port_num, modem_signals ); + dbg("digi_set_modem_signals: TOP: port=%d, modem_signals=0x%x", + port_priv->dp_port_num, modem_signals); - spin_lock_irqsave( &oob_priv->dp_port_lock, flags ); - spin_lock( &port_priv->dp_port_lock ); + spin_lock_irqsave(&oob_priv->dp_port_lock, flags); + spin_lock(&port_priv->dp_port_lock); - while( oob_port->write_urb->status == -EINPROGRESS - || oob_priv->dp_write_urb_in_use ) { - spin_unlock( &port_priv->dp_port_lock ); + while(oob_port->write_urb->status == -EINPROGRESS || oob_priv->dp_write_urb_in_use) { + spin_unlock(&port_priv->dp_port_lock); cond_wait_interruptible_timeout_irqrestore( &oob_port->write_wait, DIGI_RETRY_TIMEOUT, - &oob_priv->dp_port_lock, flags ); - if( interruptible && signal_pending(current) ) { - return( -EINTR ); - } - spin_lock_irqsave( &oob_priv->dp_port_lock, flags ); - spin_lock( &port_priv->dp_port_lock ); + &oob_priv->dp_port_lock, flags); + if (interruptible && signal_pending(current)) + return -EINTR; + spin_lock_irqsave(&oob_priv->dp_port_lock, flags); + spin_lock(&port_priv->dp_port_lock); } - data[0] = DIGI_CMD_SET_DTR_SIGNAL; data[1] = port_priv->dp_port_num; - data[2] = (modem_signals&TIOCM_DTR) ? - DIGI_DTR_ACTIVE : DIGI_DTR_INACTIVE; + data[2] = (modem_signals&TIOCM_DTR) ? DIGI_DTR_ACTIVE : DIGI_DTR_INACTIVE; data[3] = 0; - data[4] = DIGI_CMD_SET_RTS_SIGNAL; data[5] = port_priv->dp_port_num; - data[6] = (modem_signals&TIOCM_RTS) ? - DIGI_RTS_ACTIVE : DIGI_RTS_INACTIVE; + data[6] = (modem_signals&TIOCM_RTS) ? DIGI_RTS_ACTIVE : DIGI_RTS_INACTIVE; data[7] = 0; oob_port->write_urb->transfer_buffer_length = 8; oob_port->write_urb->dev = port->serial->dev; - if( (ret=usb_submit_urb(oob_port->write_urb, GFP_ATOMIC)) == 0 ) { + if ((ret = usb_submit_urb(oob_port->write_urb, GFP_ATOMIC)) == 0) { oob_priv->dp_write_urb_in_use = 1; port_priv->dp_modem_signals = (port_priv->dp_modem_signals&~(TIOCM_DTR|TIOCM_RTS)) | (modem_signals&(TIOCM_DTR|TIOCM_RTS)); } - - spin_unlock( &port_priv->dp_port_lock ); - spin_unlock_irqrestore( &oob_priv->dp_port_lock, flags ); - - if( ret ) { - err("%s: usb_submit_urb failed, ret=%d", __FUNCTION__, - ret ); - } - - return( ret ); - + spin_unlock(&port_priv->dp_port_lock); + spin_unlock_irqrestore(&oob_priv->dp_port_lock, flags); + if (ret) + err("%s: usb_submit_urb failed, ret=%d", __FUNCTION__, ret); + return ret; } - /* * Digi Transmit Idle * @@ -865,216 +826,182 @@ port_priv->dp_port_num, modem_signals ); * port at a time, so its ok. */ -static int digi_transmit_idle( struct usb_serial_port *port, - unsigned long timeout ) +static int digi_transmit_idle(struct usb_serial_port *port, + unsigned long timeout) { - int ret; unsigned char buf[2]; struct digi_port *priv = usb_get_serial_port_data(port); unsigned long flags = 0; - - spin_lock_irqsave( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); priv->dp_transmit_idle = 0; - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); buf[0] = DIGI_CMD_TRANSMIT_IDLE; buf[1] = 0; timeout += jiffies; - if( (ret=digi_write_inb_command( port, buf, 2, timeout-jiffies )) != 0 ) - return( ret ); + if ((ret = digi_write_inb_command(port, buf, 2, timeout - jiffies)) != 0) + return ret; - spin_lock_irqsave( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); - while( time_before(jiffies, timeout) && !priv->dp_transmit_idle ) { + while(time_before(jiffies, timeout) && !priv->dp_transmit_idle) { cond_wait_interruptible_timeout_irqrestore( &priv->dp_transmit_idle_wait, DIGI_RETRY_TIMEOUT, - &priv->dp_port_lock, flags ); - if( signal_pending(current) ) { - return( -EINTR ); - } - spin_lock_irqsave( &priv->dp_port_lock, flags ); + &priv->dp_port_lock, flags); + if (signal_pending(current)) + return -EINTR; + spin_lock_irqsave(&priv->dp_port_lock, flags); } - priv->dp_transmit_idle = 0; - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - - return( 0 ); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); + return 0; } -static void digi_rx_throttle( struct usb_serial_port *port ) +static void digi_rx_throttle(struct usb_serial_port *port) { - unsigned long flags; struct digi_port *priv = usb_get_serial_port_data(port); -dbg( "digi_rx_throttle: TOP: port=%d", priv->dp_port_num ); + dbg("digi_rx_throttle: TOP: port=%d", priv->dp_port_num); /* stop receiving characters by not resubmitting the read urb */ - spin_lock_irqsave( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); priv->dp_throttled = 1; priv->dp_throttle_restart = 0; - priv->dp_in_buf_len = 0; - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - + spin_unlock_irqrestore(&priv->dp_port_lock, flags); } -static void digi_rx_unthrottle( struct usb_serial_port *port ) +static void digi_rx_unthrottle(struct usb_serial_port *port) { - int ret = 0; - int len; unsigned long flags; struct digi_port *priv = usb_get_serial_port_data(port); - struct tty_struct *tty = port->tty; - - -dbg( "digi_rx_unthrottle: TOP: port=%d", priv->dp_port_num ); - - spin_lock_irqsave( &priv->dp_port_lock, flags ); - /* send any buffered chars from throttle time on to tty subsystem */ + dbg("digi_rx_unthrottle: TOP: port=%d", priv->dp_port_num); - len = tty_buffer_request_room(tty, priv->dp_in_buf_len); - if( len > 0 ) { - tty_insert_flip_string_flags(tty, priv->dp_in_buf, priv->dp_in_flag_buf, len); - tty_flip_buffer_push( tty ); - } - - /* restart read chain */ - if( priv->dp_throttle_restart ) { - port->read_urb->dev = port->serial->dev; - ret = usb_submit_urb( port->read_urb, GFP_ATOMIC ); - } + spin_lock_irqsave(&priv->dp_port_lock, flags); /* turn throttle off */ priv->dp_throttled = 0; - priv->dp_in_buf_len = 0; priv->dp_throttle_restart = 0; - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - - if( ret ) { - err("%s: usb_submit_urb failed, ret=%d, port=%d", __FUNCTION__, - ret, priv->dp_port_num ); + /* restart read chain */ + if (priv->dp_throttle_restart) { + port->read_urb->dev = port->serial->dev; + ret = usb_submit_urb(port->read_urb, GFP_ATOMIC); } + spin_unlock_irqrestore(&priv->dp_port_lock, flags); + + if (ret) + err("%s: usb_submit_urb failed, ret=%d, port=%d", + __FUNCTION__, ret, priv->dp_port_num); } -static void digi_set_termios( struct usb_serial_port *port, - struct ktermios *old_termios ) +static void digi_set_termios(struct usb_serial_port *port, + struct ktermios *old_termios) { struct digi_port *priv = usb_get_serial_port_data(port); - unsigned int iflag = port->tty->termios->c_iflag; - unsigned int cflag = port->tty->termios->c_cflag; + struct tty_struct *tty = port->tty; + unsigned int iflag = tty->termios->c_iflag; + unsigned int cflag = tty->termios->c_cflag; unsigned int old_iflag = old_termios->c_iflag; unsigned int old_cflag = old_termios->c_cflag; unsigned char buf[32]; unsigned int modem_signals; int arg,ret; int i = 0; + speed_t baud; - -dbg( "digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, old_cflag=0x%x", priv->dp_port_num, iflag, old_iflag, cflag, old_cflag ); + dbg("digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, old_cflag=0x%x", priv->dp_port_num, iflag, old_iflag, cflag, old_cflag); /* set baud rate */ - if( (cflag&CBAUD) != (old_cflag&CBAUD) ) { - + if ((baud = tty_get_baud_rate(tty)) != tty_termios_baud_rate(old_termios)) { arg = -1; /* reassert DTR and (maybe) RTS on transition from B0 */ - if( (old_cflag&CBAUD) == B0 ) { + if ((old_cflag&CBAUD) == B0) { /* don't set RTS if using hardware flow control */ /* and throttling input */ modem_signals = TIOCM_DTR; - if( !(port->tty->termios->c_cflag & CRTSCTS) || - !test_bit(TTY_THROTTLED, &port->tty->flags) ) { + if (!(tty->termios->c_cflag & CRTSCTS) || + !test_bit(TTY_THROTTLED, &tty->flags)) modem_signals |= TIOCM_RTS; - } - digi_set_modem_signals( port, modem_signals, 1 ); + digi_set_modem_signals(port, modem_signals, 1); } - - switch( (cflag&CBAUD) ) { + switch (baud) { /* drop DTR and RTS on transition to B0 */ - case B0: digi_set_modem_signals( port, 0, 1 ); break; - case B50: arg = DIGI_BAUD_50; break; - case B75: arg = DIGI_BAUD_75; break; - case B110: arg = DIGI_BAUD_110; break; - case B150: arg = DIGI_BAUD_150; break; - case B200: arg = DIGI_BAUD_200; break; - case B300: arg = DIGI_BAUD_300; break; - case B600: arg = DIGI_BAUD_600; break; - case B1200: arg = DIGI_BAUD_1200; break; - case B1800: arg = DIGI_BAUD_1800; break; - case B2400: arg = DIGI_BAUD_2400; break; - case B4800: arg = DIGI_BAUD_4800; break; - case B9600: arg = DIGI_BAUD_9600; break; - case B19200: arg = DIGI_BAUD_19200; break; - case B38400: arg = DIGI_BAUD_38400; break; - case B57600: arg = DIGI_BAUD_57600; break; - case B115200: arg = DIGI_BAUD_115200; break; - case B230400: arg = DIGI_BAUD_230400; break; - case B460800: arg = DIGI_BAUD_460800; break; - default: - dbg( "digi_set_termios: can't handle baud rate 0x%x", - (cflag&CBAUD) ); - break; + case 0: digi_set_modem_signals(port, 0, 1); break; + case 50: arg = DIGI_BAUD_50; break; + case 75: arg = DIGI_BAUD_75; break; + case 110: arg = DIGI_BAUD_110; break; + case 150: arg = DIGI_BAUD_150; break; + case 200: arg = DIGI_BAUD_200; break; + case 300: arg = DIGI_BAUD_300; break; + case 600: arg = DIGI_BAUD_600; break; + case 1200: arg = DIGI_BAUD_1200; break; + case 1800: arg = DIGI_BAUD_1800; break; + case 2400: arg = DIGI_BAUD_2400; break; + case 4800: arg = DIGI_BAUD_4800; break; + case 9600: arg = DIGI_BAUD_9600; break; + case 19200: arg = DIGI_BAUD_19200; break; + case 38400: arg = DIGI_BAUD_38400; break; + case 57600: arg = DIGI_BAUD_57600; break; + case 115200: arg = DIGI_BAUD_115200; break; + case 230400: arg = DIGI_BAUD_230400; break; + case 460800: arg = DIGI_BAUD_460800; break; + default: + arg = DIGI_BAUD_9600; + baud = 9600; + break; } - - if( arg != -1 ) { + if (arg != -1) { buf[i++] = DIGI_CMD_SET_BAUD_RATE; buf[i++] = priv->dp_port_num; buf[i++] = arg; buf[i++] = 0; } - } - /* set parity */ - if( (cflag&(PARENB|PARODD)) != (old_cflag&(PARENB|PARODD)) ) { - - if( (cflag&PARENB) ) { - if( (cflag&PARODD) ) + if ((cflag&(PARENB|PARODD)) != (old_cflag&(PARENB|PARODD))) { + if (cflag&PARENB) { + if (cflag&PARODD) arg = DIGI_PARITY_ODD; else arg = DIGI_PARITY_EVEN; } else { arg = DIGI_PARITY_NONE; } - buf[i++] = DIGI_CMD_SET_PARITY; buf[i++] = priv->dp_port_num; buf[i++] = arg; buf[i++] = 0; - } - /* set word size */ - if( (cflag&CSIZE) != (old_cflag&CSIZE) ) { - + if ((cflag&CSIZE) != (old_cflag&CSIZE)) { arg = -1; - - switch( (cflag&CSIZE) ) { + switch (cflag&CSIZE) { case CS5: arg = DIGI_WORD_SIZE_5; break; case CS6: arg = DIGI_WORD_SIZE_6; break; case CS7: arg = DIGI_WORD_SIZE_7; break; case CS8: arg = DIGI_WORD_SIZE_8; break; default: - dbg( "digi_set_termios: can't handle word size %d", - (cflag&CSIZE) ); + dbg("digi_set_termios: can't handle word size %d", + (cflag&CSIZE)); break; } - if( arg != -1 ) { + if (arg != -1) { buf[i++] = DIGI_CMD_SET_WORD_SIZE; buf[i++] = priv->dp_port_num; buf[i++] = arg; @@ -1084,9 +1011,9 @@ dbg( "digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, ol } /* set stop bits */ - if( (cflag&CSTOPB) != (old_cflag&CSTOPB) ) { + if ((cflag&CSTOPB) != (old_cflag&CSTOPB)) { - if( (cflag&CSTOPB) ) + if ((cflag&CSTOPB)) arg = DIGI_STOP_BITS_2; else arg = DIGI_STOP_BITS_1; @@ -1099,18 +1026,15 @@ dbg( "digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, ol } /* set input flow control */ - if( (iflag&IXOFF) != (old_iflag&IXOFF) - || (cflag&CRTSCTS) != (old_cflag&CRTSCTS) ) { - + if ((iflag&IXOFF) != (old_iflag&IXOFF) + || (cflag&CRTSCTS) != (old_cflag&CRTSCTS)) { arg = 0; - - if( (iflag&IXOFF) ) + if (iflag&IXOFF) arg |= DIGI_INPUT_FLOW_CONTROL_XON_XOFF; else arg &= ~DIGI_INPUT_FLOW_CONTROL_XON_XOFF; - if( (cflag&CRTSCTS) ) { - + if (cflag&CRTSCTS) { arg |= DIGI_INPUT_FLOW_CONTROL_RTS; /* On USB-4 it is necessary to assert RTS prior */ @@ -1123,43 +1047,37 @@ dbg( "digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, ol } else { arg &= ~DIGI_INPUT_FLOW_CONTROL_RTS; } - buf[i++] = DIGI_CMD_SET_INPUT_FLOW_CONTROL; buf[i++] = priv->dp_port_num; buf[i++] = arg; buf[i++] = 0; - } /* set output flow control */ - if( (iflag&IXON) != (old_iflag&IXON) - || (cflag&CRTSCTS) != (old_cflag&CRTSCTS) ) { - + if ((iflag&IXON) != (old_iflag&IXON) + || (cflag&CRTSCTS) != (old_cflag&CRTSCTS)) { arg = 0; - - if( (iflag&IXON) ) + if (iflag&IXON) arg |= DIGI_OUTPUT_FLOW_CONTROL_XON_XOFF; else arg &= ~DIGI_OUTPUT_FLOW_CONTROL_XON_XOFF; - if( (cflag&CRTSCTS) ) { + if (cflag&CRTSCTS) { arg |= DIGI_OUTPUT_FLOW_CONTROL_CTS; } else { arg &= ~DIGI_OUTPUT_FLOW_CONTROL_CTS; - port->tty->hw_stopped = 0; + tty->hw_stopped = 0; } buf[i++] = DIGI_CMD_SET_OUTPUT_FLOW_CONTROL; buf[i++] = priv->dp_port_num; buf[i++] = arg; buf[i++] = 0; - } /* set receive enable/disable */ - if( (cflag&CREAD) != (old_cflag&CREAD) ) { - - if( (cflag&CREAD) ) + if ((cflag&CREAD) != (old_cflag&CREAD)) { + if (cflag&CREAD) arg = DIGI_ENABLE; else arg = DIGI_DISABLE; @@ -1168,32 +1086,26 @@ dbg( "digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, ol buf[i++] = priv->dp_port_num; buf[i++] = arg; buf[i++] = 0; - } - - if( (ret=digi_write_oob_command( port, buf, i, 1 )) != 0 ) - dbg( "digi_set_termios: write oob failed, ret=%d", ret ); + if ((ret = digi_write_oob_command(port, buf, i, 1)) != 0) + dbg("digi_set_termios: write oob failed, ret=%d", ret); } -static void digi_break_ctl( struct usb_serial_port *port, int break_state ) +static void digi_break_ctl(struct usb_serial_port *port, int break_state) { - unsigned char buf[4]; - buf[0] = DIGI_CMD_BREAK_CONTROL; buf[1] = 2; /* length */ buf[2] = break_state ? 1 : 0; buf[3] = 0; /* pad */ - - digi_write_inb_command( port, buf, 4, 0 ); - + digi_write_inb_command(port, buf, 4, 0); } -static int digi_tiocmget( struct usb_serial_port *port, struct file *file ) +static int digi_tiocmget(struct usb_serial_port *port, struct file *file) { struct digi_port *priv = usb_get_serial_port_data(port); unsigned int val; @@ -1201,15 +1113,15 @@ static int digi_tiocmget( struct usb_serial_port *port, struct file *file ) dbg("%s: TOP: port=%d", __FUNCTION__, priv->dp_port_num); - spin_lock_irqsave( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); val = priv->dp_modem_signals; - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); return val; } -static int digi_tiocmset( struct usb_serial_port *port, struct file *file, - unsigned int set, unsigned int clear ) +static int digi_tiocmset(struct usb_serial_port *port, struct file *file, + unsigned int set, unsigned int clear) { struct digi_port *priv = usb_get_serial_port_data(port); unsigned int val; @@ -1217,41 +1129,34 @@ static int digi_tiocmset( struct usb_serial_port *port, struct file *file, dbg("%s: TOP: port=%d", __FUNCTION__, priv->dp_port_num); - spin_lock_irqsave( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); val = (priv->dp_modem_signals & ~clear) | set; - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - return digi_set_modem_signals( port, val, 1 ); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); + return digi_set_modem_signals(port, val, 1); } -static int digi_ioctl( struct usb_serial_port *port, struct file *file, - unsigned int cmd, unsigned long arg ) +static int digi_ioctl(struct usb_serial_port *port, struct file *file, + unsigned int cmd, unsigned long arg) { - struct digi_port *priv = usb_get_serial_port_data(port); - -dbg( "digi_ioctl: TOP: port=%d, cmd=0x%x", priv->dp_port_num, cmd ); + dbg("digi_ioctl: TOP: port=%d, cmd=0x%x", priv->dp_port_num, cmd); switch (cmd) { - case TIOCMIWAIT: /* wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)*/ /* TODO */ - return( 0 ); - + return 0; case TIOCGICOUNT: /* return count of modemline transitions */ /* TODO */ return 0; - } - - return( -ENOIOCTLCMD ); + return -ENOIOCTLCMD; } - -static int digi_write( struct usb_serial_port *port, const unsigned char *buf, int count ) +static int digi_write(struct usb_serial_port *port, const unsigned char *buf, int count) { int ret,data_len,new_len; @@ -1259,35 +1164,29 @@ static int digi_write( struct usb_serial_port *port, const unsigned char *buf, i unsigned char *data = port->write_urb->transfer_buffer; unsigned long flags = 0; - -dbg( "digi_write: TOP: port=%d, count=%d, in_interrupt=%ld", -priv->dp_port_num, count, in_interrupt() ); + dbg("digi_write: TOP: port=%d, count=%d, in_interrupt=%ld", + priv->dp_port_num, count, in_interrupt()); /* copy user data (which can sleep) before getting spin lock */ - count = min( count, port->bulk_out_size-2 ); - count = min( 64, count); + count = min(count, port->bulk_out_size-2); + count = min(64, count); /* be sure only one write proceeds at a time */ /* there are races on the port private buffer */ /* and races to check write_urb->status */ - spin_lock_irqsave( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); /* wait for urb status clear to submit another urb */ - if( port->write_urb->status == -EINPROGRESS - || priv->dp_write_urb_in_use ) { - + if (port->write_urb->status == -EINPROGRESS || priv->dp_write_urb_in_use) { /* buffer data if count is 1 (probably put_char) if possible */ - if( count == 1 && priv->dp_out_buf_len < DIGI_OUT_BUF_SIZE ) { + if (count == 1 && priv->dp_out_buf_len < DIGI_OUT_BUF_SIZE) { priv->dp_out_buf[priv->dp_out_buf_len++] = *buf; new_len = 1; } else { new_len = 0; } - - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - - return( new_len ); - + spin_unlock_irqrestore(&priv->dp_port_lock, flags); + return new_len; } /* allow space for any buffered data and for new data, up to */ @@ -1295,9 +1194,9 @@ priv->dp_port_num, count, in_interrupt() ); new_len = min(count, port->bulk_out_size-2-priv->dp_out_buf_len); data_len = new_len + priv->dp_out_buf_len; - if( data_len == 0 ) { - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - return( 0 ); + if (data_len == 0) { + spin_unlock_irqrestore(&priv->dp_port_lock, flags); + return 0; } port->write_urb->transfer_buffer_length = data_len+2; @@ -1307,32 +1206,29 @@ priv->dp_port_num, count, in_interrupt() ); *data++ = data_len; /* copy in buffered data first */ - memcpy( data, priv->dp_out_buf, priv->dp_out_buf_len ); + memcpy(data, priv->dp_out_buf, priv->dp_out_buf_len); data += priv->dp_out_buf_len; /* copy in new data */ - memcpy( data, buf, new_len ); + memcpy(data, buf, new_len); - if( (ret=usb_submit_urb(port->write_urb, GFP_ATOMIC)) == 0 ) { + if ((ret = usb_submit_urb(port->write_urb, GFP_ATOMIC)) == 0) { priv->dp_write_urb_in_use = 1; ret = new_len; priv->dp_out_buf_len = 0; } /* return length of new data written, or error */ - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - if( ret < 0 ) { - err("%s: usb_submit_urb failed, ret=%d, port=%d", __FUNCTION__, - ret, priv->dp_port_num ); - } - -dbg( "digi_write: returning %d", ret ); - return( ret ); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); + if (ret < 0) + err("%s: usb_submit_urb failed, ret=%d, port=%d", + __FUNCTION__, ret, priv->dp_port_num); + dbg("digi_write: returning %d", ret); + return ret; } - -static void digi_write_bulk_callback( struct urb *urb ) +static void digi_write_bulk_callback(struct urb *urb) { struct usb_serial_port *port = (struct usb_serial_port *)urb->context; @@ -1340,153 +1236,138 @@ static void digi_write_bulk_callback( struct urb *urb ) struct digi_port *priv; struct digi_serial *serial_priv; int ret = 0; + int status = urb->status; - -dbg( "digi_write_bulk_callback: TOP, urb->status=%d", urb->status ); + dbg("digi_write_bulk_callback: TOP, urb->status=%d", status); /* port and serial sanity check */ - if( port == NULL || (priv=usb_get_serial_port_data(port)) == NULL ) { - err("%s: port or port->private is NULL, status=%d", __FUNCTION__, - urb->status ); + if (port == NULL || (priv=usb_get_serial_port_data(port)) == NULL) { + err("%s: port or port->private is NULL, status=%d", + __FUNCTION__, status); return; } serial = port->serial; - if( serial == NULL || (serial_priv=usb_get_serial_data(serial)) == NULL ) { - err("%s: serial or serial->private is NULL, status=%d", __FUNCTION__, urb->status ); + if (serial == NULL || (serial_priv=usb_get_serial_data(serial)) == NULL) { + err("%s: serial or serial->private is NULL, status=%d", + __FUNCTION__, status); return; } /* handle oob callback */ - if( priv->dp_port_num == serial_priv->ds_oob_port_num ) { - dbg( "digi_write_bulk_callback: oob callback" ); - spin_lock( &priv->dp_port_lock ); + if (priv->dp_port_num == serial_priv->ds_oob_port_num) { + dbg("digi_write_bulk_callback: oob callback"); + spin_lock(&priv->dp_port_lock); priv->dp_write_urb_in_use = 0; - wake_up_interruptible( &port->write_wait ); - spin_unlock( &priv->dp_port_lock ); + wake_up_interruptible(&port->write_wait); + spin_unlock(&priv->dp_port_lock); return; } /* try to send any buffered data on this port, if it is open */ - spin_lock( &priv->dp_port_lock ); + spin_lock(&priv->dp_port_lock); priv->dp_write_urb_in_use = 0; - if( port->open_count && port->write_urb->status != -EINPROGRESS - && priv->dp_out_buf_len > 0 ) { - + if (port->open_count && port->write_urb->status != -EINPROGRESS + && priv->dp_out_buf_len > 0) { *((unsigned char *)(port->write_urb->transfer_buffer)) = (unsigned char)DIGI_CMD_SEND_DATA; *((unsigned char *)(port->write_urb->transfer_buffer)+1) = (unsigned char)priv->dp_out_buf_len; - - port->write_urb->transfer_buffer_length - = priv->dp_out_buf_len+2; + port->write_urb->transfer_buffer_length = priv->dp_out_buf_len+2; port->write_urb->dev = serial->dev; - - memcpy( port->write_urb->transfer_buffer+2, priv->dp_out_buf, - priv->dp_out_buf_len ); - - if( (ret=usb_submit_urb(port->write_urb, GFP_ATOMIC)) == 0 ) { + memcpy(port->write_urb->transfer_buffer+2, priv->dp_out_buf, + priv->dp_out_buf_len); + if ((ret = usb_submit_urb(port->write_urb, GFP_ATOMIC)) == 0) { priv->dp_write_urb_in_use = 1; priv->dp_out_buf_len = 0; } - } - /* wake up processes sleeping on writes immediately */ - digi_wakeup_write( port ); - + digi_wakeup_write(port); /* also queue up a wakeup at scheduler time, in case we */ /* lost the race in write_chan(). */ schedule_work(&priv->dp_wakeup_work); - spin_unlock( &priv->dp_port_lock ); - - if( ret ) { - err("%s: usb_submit_urb failed, ret=%d, port=%d", __FUNCTION__, - ret, priv->dp_port_num ); - } - + spin_unlock(&priv->dp_port_lock); + if (ret) + err("%s: usb_submit_urb failed, ret=%d, port=%d", + __FUNCTION__, ret, priv->dp_port_num); } - -static int digi_write_room( struct usb_serial_port *port ) +static int digi_write_room(struct usb_serial_port *port) { int room; struct digi_port *priv = usb_get_serial_port_data(port); unsigned long flags = 0; + spin_lock_irqsave(&priv->dp_port_lock, flags); - spin_lock_irqsave( &priv->dp_port_lock, flags ); - - if( port->write_urb->status == -EINPROGRESS - || priv->dp_write_urb_in_use ) + if (port->write_urb->status == -EINPROGRESS || priv->dp_write_urb_in_use) room = 0; else room = port->bulk_out_size - 2 - priv->dp_out_buf_len; - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - -dbg( "digi_write_room: port=%d, room=%d", priv->dp_port_num, room ); - return( room ); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); + dbg("digi_write_room: port=%d, room=%d", priv->dp_port_num, room); + return room; } - -static int digi_chars_in_buffer( struct usb_serial_port *port ) +static int digi_chars_in_buffer(struct usb_serial_port *port) { struct digi_port *priv = usb_get_serial_port_data(port); - if( port->write_urb->status == -EINPROGRESS - || priv->dp_write_urb_in_use ) { -dbg( "digi_chars_in_buffer: port=%d, chars=%d", priv->dp_port_num, port->bulk_out_size - 2 ); - /* return( port->bulk_out_size - 2 ); */ - return( 256 ); + if (port->write_urb->status == -EINPROGRESS + || priv->dp_write_urb_in_use) { + dbg("digi_chars_in_buffer: port=%d, chars=%d", + priv->dp_port_num, port->bulk_out_size - 2); + /* return(port->bulk_out_size - 2); */ + return 256; } else { -dbg( "digi_chars_in_buffer: port=%d, chars=%d", priv->dp_port_num, priv->dp_out_buf_len ); - return( priv->dp_out_buf_len ); + dbg("digi_chars_in_buffer: port=%d, chars=%d", + priv->dp_port_num, priv->dp_out_buf_len); + return priv->dp_out_buf_len; } } -static int digi_open( struct usb_serial_port *port, struct file *filp ) +static int digi_open(struct usb_serial_port *port, struct file *filp) { - int ret; unsigned char buf[32]; struct digi_port *priv = usb_get_serial_port_data(port); struct ktermios not_termios; unsigned long flags = 0; - -dbg( "digi_open: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_count ); + dbg("digi_open: TOP: port=%d, open_count=%d", + priv->dp_port_num, port->open_count); /* be sure the device is started up */ - if( digi_startup_device( port->serial ) != 0 ) - return( -ENXIO ); + if (digi_startup_device(port->serial) != 0) + return -ENXIO; - spin_lock_irqsave( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); /* don't wait on a close in progress for non-blocking opens */ - if( priv->dp_in_close && (filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0 ) { - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - return( -EAGAIN ); + if (priv->dp_in_close && (filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0) { + spin_unlock_irqrestore(&priv->dp_port_lock, flags); + return -EAGAIN; } /* wait for a close in progress to finish */ - while( priv->dp_in_close ) { + while(priv->dp_in_close) { cond_wait_interruptible_timeout_irqrestore( &priv->dp_close_wait, DIGI_RETRY_TIMEOUT, - &priv->dp_port_lock, flags ); - if( signal_pending(current) ) { - return( -EINTR ); - } - spin_lock_irqsave( &priv->dp_port_lock, flags ); + &priv->dp_port_lock, flags); + if (signal_pending(current)) + return -EINTR; + spin_lock_irqsave(&priv->dp_port_lock, flags); } - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); /* read modem signals automatically whenever they change */ buf[0] = DIGI_CMD_READ_INPUT_SIGNALS; @@ -1500,23 +1381,22 @@ dbg( "digi_open: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_cou buf[6] = DIGI_FLUSH_TX | DIGI_FLUSH_RX; buf[7] = 0; - if( (ret=digi_write_oob_command( port, buf, 8, 1 )) != 0 ) - dbg( "digi_open: write oob failed, ret=%d", ret ); + if ((ret = digi_write_oob_command(port, buf, 8, 1)) != 0) + dbg("digi_open: write oob failed, ret=%d", ret); /* set termios settings */ not_termios.c_cflag = ~port->tty->termios->c_cflag; not_termios.c_iflag = ~port->tty->termios->c_iflag; - digi_set_termios( port, ¬_termios ); + digi_set_termios(port, ¬_termios); /* set DTR and RTS */ - digi_set_modem_signals( port, TIOCM_DTR|TIOCM_RTS, 1 ); - - return( 0 ); + digi_set_modem_signals(port, TIOCM_DTR|TIOCM_RTS, 1); + return 0; } -static void digi_close( struct usb_serial_port *port, struct file *filp ) +static void digi_close(struct usb_serial_port *port, struct file *filp) { DEFINE_WAIT(wait); int ret; @@ -1525,40 +1405,37 @@ static void digi_close( struct usb_serial_port *port, struct file *filp ) struct digi_port *priv = usb_get_serial_port_data(port); unsigned long flags = 0; - -dbg( "digi_close: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_count ); - + dbg("digi_close: TOP: port=%d, open_count=%d", + priv->dp_port_num, port->open_count); /* if disconnected, just clear flags */ if (!usb_get_intfdata(port->serial->interface)) goto exit; /* do cleanup only after final close on this port */ - spin_lock_irqsave( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); priv->dp_in_close = 1; - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); /* tell line discipline to process only XON/XOFF */ tty->closing = 1; /* wait for output to drain */ - if( (filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0 ) { - tty_wait_until_sent( tty, DIGI_CLOSE_TIMEOUT ); - } + if ((filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0) + tty_wait_until_sent(tty, DIGI_CLOSE_TIMEOUT); /* flush driver and line discipline buffers */ - if( tty->driver->flush_buffer ) - tty->driver->flush_buffer( tty ); + if (tty->driver->flush_buffer) + tty->driver->flush_buffer(tty); tty_ldisc_flush(tty); if (port->serial->dev) { /* wait for transmit idle */ - if( (filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0 ) { - digi_transmit_idle( port, DIGI_CLOSE_TIMEOUT ); + if ((filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0) { + digi_transmit_idle(port, DIGI_CLOSE_TIMEOUT); } - /* drop DTR and RTS */ - digi_set_modem_signals( port, 0, 0 ); + digi_set_modem_signals(port, 0, 0); /* disable input flow control */ buf[0] = DIGI_CMD_SET_INPUT_FLOW_CONTROL; @@ -1590,8 +1467,8 @@ dbg( "digi_close: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_co buf[18] = DIGI_FLUSH_TX | DIGI_FLUSH_RX; buf[19] = 0; - if( (ret=digi_write_oob_command( port, buf, 20, 0 )) != 0 ) - dbg( "digi_close: write oob failed, ret=%d", ret ); + if ((ret = digi_write_oob_command(port, buf, 20, 0)) != 0) + dbg("digi_close: write oob failed, ret=%d", ret); /* wait for final commands on oob port to complete */ prepare_to_wait(&priv->dp_flush_wait, &wait, TASK_INTERRUPTIBLE); @@ -1601,17 +1478,14 @@ dbg( "digi_close: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_co /* shutdown any outstanding bulk writes */ usb_kill_urb(port->write_urb); } - tty->closing = 0; - exit: - spin_lock_irqsave( &priv->dp_port_lock, flags ); + spin_lock_irqsave(&priv->dp_port_lock, flags); priv->dp_write_urb_in_use = 0; priv->dp_in_close = 0; - wake_up_interruptible( &priv->dp_close_wait ); - spin_unlock_irqrestore( &priv->dp_port_lock, flags ); - -dbg( "digi_close: done" ); + wake_up_interruptible(&priv->dp_close_wait); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); + dbg("digi_close: done"); } @@ -1622,182 +1496,164 @@ dbg( "digi_close: done" ); * urbs initialized. Returns 0 if successful, non-zero error otherwise. */ -static int digi_startup_device( struct usb_serial *serial ) +static int digi_startup_device(struct usb_serial *serial) { - int i,ret = 0; struct digi_serial *serial_priv = usb_get_serial_data(serial); struct usb_serial_port *port; - /* be sure this happens exactly once */ - spin_lock( &serial_priv->ds_serial_lock ); - if( serial_priv->ds_device_started ) { - spin_unlock( &serial_priv->ds_serial_lock ); - return( 0 ); + spin_lock(&serial_priv->ds_serial_lock); + if (serial_priv->ds_device_started) { + spin_unlock(&serial_priv->ds_serial_lock); + return 0; } serial_priv->ds_device_started = 1; - spin_unlock( &serial_priv->ds_serial_lock ); + spin_unlock(&serial_priv->ds_serial_lock); /* start reading from each bulk in endpoint for the device */ /* set USB_DISABLE_SPD flag for write bulk urbs */ - for( i=0; i<serial->type->num_ports+1; i++ ) { - + for (i = 0; i < serial->type->num_ports + 1; i++) { port = serial->port[i]; - port->write_urb->dev = port->serial->dev; - - if( (ret=usb_submit_urb(port->read_urb, GFP_KERNEL)) != 0 ) { - err("%s: usb_submit_urb failed, ret=%d, port=%d", __FUNCTION__, - ret, i ); + if ((ret = usb_submit_urb(port->read_urb, GFP_KERNEL)) != 0) { + err("%s: usb_submit_urb failed, ret=%d, port=%d", + __FUNCTION__, ret, i); break; } - } - - return( ret ); - + return ret; } -static int digi_startup( struct usb_serial *serial ) +static int digi_startup(struct usb_serial *serial) { int i; struct digi_port *priv; struct digi_serial *serial_priv; - -dbg( "digi_startup: TOP" ); + dbg("digi_startup: TOP"); /* allocate the private data structures for all ports */ /* number of regular ports + 1 for the out-of-band port */ - for( i=0; i<serial->type->num_ports+1; i++ ) { - + for(i = 0; i < serial->type->num_ports + 1; i++) { /* allocate port private structure */ - priv = kmalloc( sizeof(struct digi_port), - GFP_KERNEL ); - if( priv == (struct digi_port *)0 ) { - while( --i >= 0 ) - kfree( usb_get_serial_port_data(serial->port[i]) ); - return( 1 ); /* error */ + priv = kmalloc(sizeof(struct digi_port), GFP_KERNEL); + if (priv == NULL) { + while (--i >= 0) + kfree(usb_get_serial_port_data(serial->port[i])); + return 1; /* error */ } /* initialize port private structure */ - spin_lock_init( &priv->dp_port_lock ); + spin_lock_init(&priv->dp_port_lock); priv->dp_port_num = i; priv->dp_out_buf_len = 0; - priv->dp_in_buf_len = 0; priv->dp_write_urb_in_use = 0; priv->dp_modem_signals = 0; - init_waitqueue_head( &priv->dp_modem_change_wait ); + init_waitqueue_head(&priv->dp_modem_change_wait); priv->dp_transmit_idle = 0; - init_waitqueue_head( &priv->dp_transmit_idle_wait ); + init_waitqueue_head(&priv->dp_transmit_idle_wait); priv->dp_throttled = 0; priv->dp_throttle_restart = 0; - init_waitqueue_head( &priv->dp_flush_wait ); + init_waitqueue_head(&priv->dp_flush_wait); priv->dp_in_close = 0; - init_waitqueue_head( &priv->dp_close_wait ); + init_waitqueue_head(&priv->dp_close_wait); INIT_WORK(&priv->dp_wakeup_work, digi_wakeup_write_lock); priv->dp_port = serial->port[i]; - /* initialize write wait queue for this port */ - init_waitqueue_head( &serial->port[i]->write_wait ); + init_waitqueue_head(&serial->port[i]->write_wait); usb_set_serial_port_data(serial->port[i], priv); } /* allocate serial private structure */ - serial_priv = kmalloc( sizeof(struct digi_serial), - GFP_KERNEL ); - if( serial_priv == (struct digi_serial *)0 ) { - for( i=0; i<serial->type->num_ports+1; i++ ) - kfree( usb_get_serial_port_data(serial->port[i]) ); - return( 1 ); /* error */ + serial_priv = kmalloc(sizeof(struct digi_serial), GFP_KERNEL); + if (serial_priv == NULL) { + for (i = 0; i < serial->type->num_ports + 1; i++) + kfree(usb_get_serial_port_data(serial->port[i])); + return 1; /* error */ } /* initialize serial private structure */ - spin_lock_init( &serial_priv->ds_serial_lock ); + spin_lock_init(&serial_priv->ds_serial_lock); serial_priv->ds_oob_port_num = serial->type->num_ports; serial_priv->ds_oob_port = serial->port[serial_priv->ds_oob_port_num]; serial_priv->ds_device_started = 0; usb_set_serial_data(serial, serial_priv); - return( 0 ); - + return 0; } -static void digi_shutdown( struct usb_serial *serial ) +static void digi_shutdown(struct usb_serial *serial) { - int i; - - -dbg( "digi_shutdown: TOP, in_interrupt()=%ld", in_interrupt() ); + dbg("digi_shutdown: TOP, in_interrupt()=%ld", in_interrupt()); /* stop reads and writes on all ports */ - for( i=0; i<serial->type->num_ports+1; i++ ) { + for (i = 0; i < serial->type->num_ports + 1; i++) { usb_kill_urb(serial->port[i]->read_urb); usb_kill_urb(serial->port[i]->write_urb); } /* free the private data structures for all ports */ /* number of regular ports + 1 for the out-of-band port */ - for( i=0; i<serial->type->num_ports+1; i++ ) - kfree( usb_get_serial_port_data(serial->port[i]) ); - kfree( usb_get_serial_data(serial) ); + for(i = 0; i < serial->type->num_ports + 1; i++) + kfree(usb_get_serial_port_data(serial->port[i])); + kfree(usb_get_serial_data(serial)); } -static void digi_read_bulk_callback( struct urb *urb ) +static void digi_read_bulk_callback(struct urb *urb) { - struct usb_serial_port *port = (struct usb_serial_port *)urb->context; struct digi_port *priv; struct digi_serial *serial_priv; int ret; + int status = urb->status; - -dbg( "digi_read_bulk_callback: TOP" ); + dbg("digi_read_bulk_callback: TOP"); /* port sanity check, do not resubmit if port is not valid */ - if( port == NULL || (priv=usb_get_serial_port_data(port)) == NULL ) { - err("%s: port or port->private is NULL, status=%d", __FUNCTION__, - urb->status ); + if (port == NULL || (priv = usb_get_serial_port_data(port)) == NULL) { + err("%s: port or port->private is NULL, status=%d", + __FUNCTION__, status); return; } - if( port->serial == NULL - || (serial_priv=usb_get_serial_data(port->serial)) == NULL ) { - err("%s: serial is bad or serial->private is NULL, status=%d", __FUNCTION__, urb->status ); + if (port->serial == NULL || + (serial_priv=usb_get_serial_data(port->serial)) == NULL) { + err("%s: serial is bad or serial->private is NULL, status=%d", + __FUNCTION__, status); return; } /* do not resubmit urb if it has any status error */ - if( urb->status ) { - err("%s: nonzero read bulk status: status=%d, port=%d", __FUNCTION__, urb->status, priv->dp_port_num ); + if (status) { + err("%s: nonzero read bulk status: status=%d, port=%d", + __FUNCTION__, status, priv->dp_port_num); return; } /* handle oob or inb callback, do not resubmit if error */ - if( priv->dp_port_num == serial_priv->ds_oob_port_num ) { - if( digi_read_oob_callback( urb ) != 0 ) + if (priv->dp_port_num == serial_priv->ds_oob_port_num) { + if (digi_read_oob_callback(urb) != 0) return; } else { - if( digi_read_inb_callback( urb ) != 0 ) + if (digi_read_inb_callback(urb) != 0) return; } /* continue read */ urb->dev = port->serial->dev; - if( (ret=usb_submit_urb(urb, GFP_ATOMIC)) != 0 ) { - err("%s: failed resubmitting urb, ret=%d, port=%d", __FUNCTION__, - ret, priv->dp_port_num ); + if ((ret = usb_submit_urb(urb, GFP_ATOMIC)) != 0) { + err("%s: failed resubmitting urb, ret=%d, port=%d", + __FUNCTION__, ret, priv->dp_port_num); } } - /* * Digi Read INB Callback * @@ -1808,7 +1664,7 @@ dbg( "digi_read_bulk_callback: TOP" ); * throttled, and -1 if the sanity checks failed. */ -static int digi_read_inb_callback( struct urb *urb ) +static int digi_read_inb_callback(struct urb *urb) { struct usb_serial_port *port = (struct usb_serial_port *)urb->context; @@ -1816,91 +1672,75 @@ static int digi_read_inb_callback( struct urb *urb ) struct digi_port *priv = usb_get_serial_port_data(port); int opcode = ((unsigned char *)urb->transfer_buffer)[0]; int len = ((unsigned char *)urb->transfer_buffer)[1]; - int status = ((unsigned char *)urb->transfer_buffer)[2]; + int port_status = ((unsigned char *)urb->transfer_buffer)[2]; unsigned char *data = ((unsigned char *)urb->transfer_buffer)+3; int flag,throttled; int i; + int status = urb->status; /* do not process callbacks on closed ports */ /* but do continue the read chain */ - if( port->open_count == 0 ) - return( 0 ); + if (port->open_count == 0) + return 0; /* short/multiple packet check */ - if( urb->actual_length != len + 2 ) { - err("%s: INCOMPLETE OR MULTIPLE PACKET, urb->status=%d, port=%d, opcode=%d, len=%d, actual_length=%d, status=%d", __FUNCTION__, urb->status, priv->dp_port_num, opcode, len, urb->actual_length, status ); - return( -1 ); + if (urb->actual_length != len + 2) { + err("%s: INCOMPLETE OR MULTIPLE PACKET, urb->status=%d, " + "port=%d, opcode=%d, len=%d, actual_length=%d, " + "status=%d", __FUNCTION__, status, priv->dp_port_num, + opcode, len, urb->actual_length, port_status); + return -1; } - spin_lock( &priv->dp_port_lock ); + spin_lock(&priv->dp_port_lock); /* check for throttle; if set, do not resubmit read urb */ /* indicate the read chain needs to be restarted on unthrottle */ throttled = priv->dp_throttled; - if( throttled ) + if (throttled) priv->dp_throttle_restart = 1; /* receive data */ - if( opcode == DIGI_CMD_RECEIVE_DATA ) { - - /* get flag from status */ + if (opcode == DIGI_CMD_RECEIVE_DATA) { + /* get flag from port_status */ flag = 0; /* overrun is special, not associated with a char */ - if( status & DIGI_OVERRUN_ERROR ) { - tty_insert_flip_char( tty, 0, TTY_OVERRUN ); - } + if (port_status & DIGI_OVERRUN_ERROR) + tty_insert_flip_char(tty, 0, TTY_OVERRUN); /* break takes precedence over parity, */ /* which takes precedence over framing errors */ - if( status & DIGI_BREAK_ERROR ) { + if (port_status & DIGI_BREAK_ERROR) flag = TTY_BREAK; - } else if( status & DIGI_PARITY_ERROR ) { + else if (port_status & DIGI_PARITY_ERROR) flag = TTY_PARITY; - } else if( status & DIGI_FRAMING_ERROR ) { + else if (port_status & DIGI_FRAMING_ERROR) flag = TTY_FRAME; - } - /* data length is len-1 (one byte of len is status) */ + /* data length is len-1 (one byte of len is port_status) */ --len; - if( throttled ) { - - len = min( len, - DIGI_IN_BUF_SIZE - priv->dp_in_buf_len ); - - if( len > 0 ) { - memcpy( priv->dp_in_buf + priv->dp_in_buf_len, - data, len ); - memset( priv->dp_in_flag_buf - + priv->dp_in_buf_len, flag, len ); - priv->dp_in_buf_len += len; - } - - } else { - len = tty_buffer_request_room(tty, len); - if( len > 0 ) { - /* Hot path */ - if(flag == TTY_NORMAL) - tty_insert_flip_string(tty, data, len); - else { - for(i = 0; i < len; i++) - tty_insert_flip_char(tty, data[i], flag); - } - tty_flip_buffer_push( tty ); + len = tty_buffer_request_room(tty, len); + if (len > 0) { + /* Hot path */ + if (flag == TTY_NORMAL) + tty_insert_flip_string(tty, data, len); + else { + for(i = 0; i < len; i++) + tty_insert_flip_char(tty, data[i], flag); } + tty_flip_buffer_push(tty); } } + spin_unlock(&priv->dp_port_lock); - spin_unlock( &priv->dp_port_lock ); - - if( opcode == DIGI_CMD_RECEIVE_DISABLE ) { - dbg("%s: got RECEIVE_DISABLE", __FUNCTION__ ); - } else if( opcode != DIGI_CMD_RECEIVE_DATA ) { - dbg("%s: unknown opcode: %d", __FUNCTION__, opcode ); - } + if (opcode == DIGI_CMD_RECEIVE_DISABLE) + dbg("%s: got RECEIVE_DISABLE", __FUNCTION__); + else if (opcode != DIGI_CMD_RECEIVE_DATA) + dbg("%s: unknown opcode: %d", __FUNCTION__, opcode); - return( throttled ? 1 : 0 ); + return(throttled ? 1 : 0); } @@ -1914,7 +1754,7 @@ static int digi_read_inb_callback( struct urb *urb ) * -1 if the sanity checks failed. */ -static int digi_read_oob_callback( struct urb *urb ) +static int digi_read_oob_callback(struct urb *urb) { struct usb_serial_port *port = (struct usb_serial_port *)urb->context; @@ -1923,87 +1763,75 @@ static int digi_read_oob_callback( struct urb *urb ) int opcode, line, status, val; int i; - -dbg( "digi_read_oob_callback: port=%d, len=%d", priv->dp_port_num, -urb->actual_length ); + dbg("digi_read_oob_callback: port=%d, len=%d", + priv->dp_port_num, urb->actual_length); /* handle each oob command */ - for( i=0; i<urb->actual_length-3; ) { - + for(i = 0; i < urb->actual_length - 3;) { opcode = ((unsigned char *)urb->transfer_buffer)[i++]; line = ((unsigned char *)urb->transfer_buffer)[i++]; status = ((unsigned char *)urb->transfer_buffer)[i++]; val = ((unsigned char *)urb->transfer_buffer)[i++]; -dbg( "digi_read_oob_callback: opcode=%d, line=%d, status=%d, val=%d", -opcode, line, status, val ); + dbg("digi_read_oob_callback: opcode=%d, line=%d, status=%d, val=%d", + opcode, line, status, val); - if( status != 0 || line >= serial->type->num_ports ) + if (status != 0 || line >= serial->type->num_ports) continue; port = serial->port[line]; - if ((priv=usb_get_serial_port_data(port)) == NULL ) + if ((priv=usb_get_serial_port_data(port)) == NULL) return -1; - if( opcode == DIGI_CMD_READ_INPUT_SIGNALS ) { - - spin_lock( &priv->dp_port_lock ); - + if (opcode == DIGI_CMD_READ_INPUT_SIGNALS) { + spin_lock(&priv->dp_port_lock); /* convert from digi flags to termiox flags */ - if( val & DIGI_READ_INPUT_SIGNALS_CTS ) { + if (val & DIGI_READ_INPUT_SIGNALS_CTS) { priv->dp_modem_signals |= TIOCM_CTS; /* port must be open to use tty struct */ - if( port->open_count - && port->tty->termios->c_cflag & CRTSCTS ) { + if (port->open_count + && port->tty->termios->c_cflag & CRTSCTS) { port->tty->hw_stopped = 0; - digi_wakeup_write( port ); + digi_wakeup_write(port); } } else { priv->dp_modem_signals &= ~TIOCM_CTS; /* port must be open to use tty struct */ - if( port->open_count - && port->tty->termios->c_cflag & CRTSCTS ) { + if (port->open_count + && port->tty->termios->c_cflag & CRTSCTS) { port->tty->hw_stopped = 1; } } - if( val & DIGI_READ_INPUT_SIGNALS_DSR ) + if (val & DIGI_READ_INPUT_SIGNALS_DSR) priv->dp_modem_signals |= TIOCM_DSR; else priv->dp_modem_signals &= ~TIOCM_DSR; - if( val & DIGI_READ_INPUT_SIGNALS_RI ) + if (val & DIGI_READ_INPUT_SIGNALS_RI) priv->dp_modem_signals |= TIOCM_RI; else priv->dp_modem_signals &= ~TIOCM_RI; - if( val & DIGI_READ_INPUT_SIGNALS_DCD ) + if (val & DIGI_READ_INPUT_SIGNALS_DCD) priv->dp_modem_signals |= TIOCM_CD; else priv->dp_modem_signals &= ~TIOCM_CD; - wake_up_interruptible( &priv->dp_modem_change_wait ); - spin_unlock( &priv->dp_port_lock ); - - } else if( opcode == DIGI_CMD_TRANSMIT_IDLE ) { - - spin_lock( &priv->dp_port_lock ); + wake_up_interruptible(&priv->dp_modem_change_wait); + spin_unlock(&priv->dp_port_lock); + } else if (opcode == DIGI_CMD_TRANSMIT_IDLE) { + spin_lock(&priv->dp_port_lock); priv->dp_transmit_idle = 1; - wake_up_interruptible( &priv->dp_transmit_idle_wait ); - spin_unlock( &priv->dp_port_lock ); - - } else if( opcode == DIGI_CMD_IFLUSH_FIFO ) { - - wake_up_interruptible( &priv->dp_flush_wait ); - + wake_up_interruptible(&priv->dp_transmit_idle_wait); + spin_unlock(&priv->dp_port_lock); + } else if (opcode == DIGI_CMD_IFLUSH_FIFO) { + wake_up_interruptible(&priv->dp_flush_wait); } - } - - return( 0 ); + return 0; } - -static int __init digi_init (void) +static int __init digi_init(void) { int retval; retval = usb_serial_register(&digi_acceleport_2_device); @@ -2025,12 +1853,11 @@ failed_acceleport_2_device: return retval; } - static void __exit digi_exit (void) { - usb_deregister (&digi_driver); - usb_serial_deregister (&digi_acceleport_2_device); - usb_serial_deregister (&digi_acceleport_4_device); + usb_deregister(&digi_driver); + usb_serial_deregister(&digi_acceleport_2_device); + usb_serial_deregister(&digi_acceleport_4_device); } @@ -2038,8 +1865,8 @@ module_init(digi_init); module_exit(digi_exit); -MODULE_AUTHOR( DRIVER_AUTHOR ); -MODULE_DESCRIPTION( DRIVER_DESC ); +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); module_param(debug, bool, S_IRUGO | S_IWUSR); diff --git a/drivers/usb/serial/empeg.c b/drivers/usb/serial/empeg.c index 4703c8f85383..050fcc996f56 100644 --- a/drivers/usb/serial/empeg.c +++ b/drivers/usb/serial/empeg.c @@ -326,12 +326,14 @@ static int empeg_chars_in_buffer (struct usb_serial_port *port) static void empeg_write_bulk_callback (struct urb *urb) { - struct usb_serial_port *port = (struct usb_serial_port *)urb->context; + struct usb_serial_port *port = urb->context; + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); - if (urb->status) { - dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero write bulk status received: %d", + __FUNCTION__, status); return; } @@ -345,11 +347,13 @@ static void empeg_read_bulk_callback (struct urb *urb) struct tty_struct *tty; unsigned char *data = urb->transfer_buffer; int result; + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); - if (urb->status) { - dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero read bulk status received: %d", + __FUNCTION__, status); return; } diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 38c4e97018e9..2d045857b181 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -538,6 +538,8 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) }, { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) }, { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) }, + { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) }, + { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) }, @@ -566,6 +568,7 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) }, { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) }, { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) }, + { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) }, { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID), .driver_info = (kernel_ulong_t)&ftdi_olimex_quirk }, { }, /* Optional parameter entry */ @@ -1147,7 +1150,9 @@ static int create_sysfs_attrs(struct usb_serial_port *port) dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]); retval = device_create_file(&port->dev, &dev_attr_event_char); if ((!retval) && - (priv->chip_type == FT232BM || priv->chip_type == FT2232C)) { + (priv->chip_type == FT232BM || + priv->chip_type == FT2232C || + priv->chip_type == FT232RL)) { retval = device_create_file(&port->dev, &dev_attr_latency_timer); } @@ -1558,14 +1563,15 @@ static void ftdi_write_bulk_callback (struct urb *urb) struct ftdi_private *priv; int data_offset; /* will be 1 for the SIO and 0 otherwise */ unsigned long countback; + int status = urb->status; /* free up the transfer buffer, as usb_free_urb() does not do this */ kfree (urb->transfer_buffer); dbg("%s - port %d", __FUNCTION__, port->number); - if (urb->status) { - dbg("nonzero write bulk status received: %d", urb->status); + if (status) { + dbg("nonzero write bulk status received: %d", status); return; } @@ -1641,6 +1647,7 @@ static void ftdi_read_bulk_callback (struct urb *urb) struct ftdi_private *priv; unsigned long countread; unsigned long flags; + int status = urb->status; if (urb->number_of_packets > 0) { err("%s transfer_buffer_length %d actual_length %d number of packets %d",__FUNCTION__, @@ -1669,9 +1676,10 @@ static void ftdi_read_bulk_callback (struct urb *urb) err("%s - Not my urb!", __FUNCTION__); } - if (urb->status) { + if (status) { /* This will happen at close every time so it is a dbg not an err */ - dbg("(this is ok on close) nonzero read bulk status received: %d", urb->status); + dbg("(this is ok on close) nonzero read bulk status received: " + "%d", status); return; } diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h index d9e49716db13..b57b90ae9f9d 100644 --- a/drivers/usb/serial/ftdi_sio.h +++ b/drivers/usb/serial/ftdi_sio.h @@ -430,6 +430,9 @@ */ #define EVOLUTION_VID 0xDEEE /* Vendor ID */ #define EVOLUTION_ER1_PID 0x0300 /* ER1 Control Module */ +#define EVO_8U232AM_PID 0x02FF /* Evolution robotics RCM2 (FT232AM)*/ +#define EVO_HYBRID_PID 0x0302 /* Evolution robotics RCM4 PID (FT232BM)*/ +#define EVO_RCM4_PID 0x0303 /* Evolution robotics RCM4 PID */ /* Pyramid Computer GmbH */ #define FTDI_PYRAMID_PID 0xE6C8 /* Pyramid Appliance Display */ @@ -531,6 +534,14 @@ #define OLIMEX_VID 0x15BA #define OLIMEX_ARM_USB_OCD_PID 0x0003 + +/* + * The Mobility Lab (TML) + * Submitted by Pierre Castella + */ +#define TML_VID 0x1B91 /* Vendor ID */ +#define TML_USB_SERIAL_PID 0x0064 /* USB - Serial Converter */ + /* Commands */ #define FTDI_SIO_RESET 0 /* Reset the port */ #define FTDI_SIO_MODEM_CTRL 1 /* Set the modem control register */ diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c index 74660a3aa670..f1c90cfe7251 100644 --- a/drivers/usb/serial/garmin_gps.c +++ b/drivers/usb/serial/garmin_gps.c @@ -1,7 +1,7 @@ /* * Garmin GPS driver * - * Copyright (C) 2006 Hermann Kneissel herkne@users.sourceforge.net + * Copyright (C) 2006,2007 Hermann Kneissel herkne@users.sourceforge.net * * The latest version of the driver can be found at * http://sourceforge.net/projects/garmin-gps/ @@ -34,6 +34,7 @@ #include <linux/module.h> #include <linux/spinlock.h> #include <asm/uaccess.h> +#include <asm/atomic.h> #include <linux/usb.h> #include <linux/usb/serial.h> @@ -52,7 +53,7 @@ static int debug = 0; */ #define VERSION_MAJOR 0 -#define VERSION_MINOR 28 +#define VERSION_MINOR 31 #define _STR(s) #s #define _DRIVER_VERSION(a,b) "v" _STR(a) "." _STR(b) @@ -141,6 +142,8 @@ struct garmin_data { __u8 inbuffer [GPS_IN_BUFSIZ]; /* tty -> usb */ __u8 outbuffer[GPS_OUT_BUFSIZ]; /* usb -> tty */ __u8 privpkt[4*6]; + atomic_t req_count; + atomic_t resp_count; spinlock_t lock; struct list_head pktlist; }; @@ -171,8 +174,6 @@ struct garmin_data { #define CLEAR_HALT_REQUIRED 0x0001 #define FLAGS_QUEUING 0x0100 -#define FLAGS_APP_RESP_SEEN 0x0200 -#define FLAGS_APP_REQ_SEEN 0x0400 #define FLAGS_DROP_DATA 0x0800 #define FLAGS_GSP_SKIP 0x1000 @@ -186,7 +187,8 @@ struct garmin_data { /* function prototypes */ static void gsp_next_packet(struct garmin_data * garmin_data_p); static int garmin_write_bulk(struct usb_serial_port *port, - const unsigned char *buf, int count); + const unsigned char *buf, int count, + int dismiss_ack); /* some special packets to be send or received */ static unsigned char const GARMIN_START_SESSION_REQ[] @@ -233,9 +235,7 @@ static struct usb_driver garmin_driver = { static inline int noResponseFromAppLayer(struct garmin_data * garmin_data_p) { - return ((garmin_data_p->flags - & (FLAGS_APP_REQ_SEEN|FLAGS_APP_RESP_SEEN)) - == FLAGS_APP_REQ_SEEN); + return atomic_read(&garmin_data_p->req_count) == atomic_read(&garmin_data_p->resp_count); } @@ -463,7 +463,7 @@ static int gsp_rec_packet(struct garmin_data * garmin_data_p, int count) usbdata[2] = __cpu_to_le32(size); garmin_write_bulk (garmin_data_p->port, garmin_data_p->inbuffer, - GARMIN_PKTHDR_LENGTH+size); + GARMIN_PKTHDR_LENGTH+size, 0); /* if this was an abort-transfer command, flush all queued data. */ @@ -818,7 +818,7 @@ static int nat_receive(struct garmin_data * garmin_data_p, if (garmin_data_p->insize >= len) { garmin_write_bulk (garmin_data_p->port, garmin_data_p->inbuffer, - len); + len, 0); garmin_data_p->insize = 0; /* if this was an abort-transfer command, @@ -893,10 +893,11 @@ static int garmin_clear(struct garmin_data * garmin_data_p) struct usb_serial_port *port = garmin_data_p->port; - if (port != NULL && garmin_data_p->flags & FLAGS_APP_RESP_SEEN) { + if (port != NULL && atomic_read(&garmin_data_p->resp_count)) { /* send a terminate command */ status = garmin_write_bulk(port, GARMIN_STOP_TRANSFER_REQ, - sizeof(GARMIN_STOP_TRANSFER_REQ)); + sizeof(GARMIN_STOP_TRANSFER_REQ), + 1); } /* flush all queued data */ @@ -939,7 +940,8 @@ static int garmin_init_session(struct usb_serial_port *port) dbg("%s - starting session ...", __FUNCTION__); garmin_data_p->state = STATE_ACTIVE; status = garmin_write_bulk(port, GARMIN_START_SESSION_REQ, - sizeof(GARMIN_START_SESSION_REQ)); + sizeof(GARMIN_START_SESSION_REQ), + 0); if (status >= 0) { @@ -950,7 +952,8 @@ static int garmin_init_session(struct usb_serial_port *port) /* not needed, but the win32 driver does it too ... */ status = garmin_write_bulk(port, GARMIN_START_SESSION_REQ2, - sizeof(GARMIN_START_SESSION_REQ2)); + sizeof(GARMIN_START_SESSION_REQ2), + 0); if (status >= 0) { status = 0; spin_lock_irqsave(&garmin_data_p->lock, flags); @@ -987,6 +990,8 @@ static int garmin_open (struct usb_serial_port *port, struct file *filp) garmin_data_p->mode = initial_mode; garmin_data_p->count = 0; garmin_data_p->flags = 0; + atomic_set(&garmin_data_p->req_count, 0); + atomic_set(&garmin_data_p->resp_count, 0); spin_unlock_irqrestore(&garmin_data_p->lock, flags); /* shutdown any bulk reads that might be going on */ @@ -1035,27 +1040,39 @@ static void garmin_write_bulk_callback (struct urb *urb) { unsigned long flags; struct usb_serial_port *port = (struct usb_serial_port *)urb->context; - struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); + int status = urb->status; - /* free up the transfer buffer, as usb_free_urb() does not do this */ - kfree (urb->transfer_buffer); + if (port) { + struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); - dbg("%s - port %d", __FUNCTION__, port->number); + dbg("%s - port %d", __FUNCTION__, port->number); - if (urb->status) { - dbg("%s - nonzero write bulk status received: %d", - __FUNCTION__, urb->status); - spin_lock_irqsave(&garmin_data_p->lock, flags); - garmin_data_p->flags |= CLEAR_HALT_REQUIRED; - spin_unlock_irqrestore(&garmin_data_p->lock, flags); + if (GARMIN_LAYERID_APPL == getLayerId(urb->transfer_buffer) + && (garmin_data_p->mode == MODE_GARMIN_SERIAL)) { + gsp_send_ack(garmin_data_p, ((__u8 *)urb->transfer_buffer)[4]); + } + + if (status) { + dbg("%s - nonzero write bulk status received: %d", + __FUNCTION__, urb->status); + spin_lock_irqsave(&garmin_data_p->lock, flags); + garmin_data_p->flags |= CLEAR_HALT_REQUIRED; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); + } + + usb_serial_port_softint(port); } - usb_serial_port_softint(port); + /* Ignore errors that resulted from garmin_write_bulk with dismiss_ack=1 */ + + /* free up the transfer buffer, as usb_free_urb() does not do this */ + kfree (urb->transfer_buffer); } static int garmin_write_bulk (struct usb_serial_port *port, - const unsigned char *buf, int count) + const unsigned char *buf, int count, + int dismiss_ack) { unsigned long flags; struct usb_serial *serial = port->serial; @@ -1092,13 +1109,12 @@ static int garmin_write_bulk (struct usb_serial_port *port, usb_sndbulkpipe (serial->dev, port->bulk_out_endpointAddress), buffer, count, - garmin_write_bulk_callback, port); + garmin_write_bulk_callback, + dismiss_ack ? NULL : port); urb->transfer_flags |= URB_ZERO_PACKET; if (GARMIN_LAYERID_APPL == getLayerId(buffer)) { - spin_lock_irqsave(&garmin_data_p->lock, flags); - garmin_data_p->flags |= FLAGS_APP_REQ_SEEN; - spin_unlock_irqrestore(&garmin_data_p->lock, flags); + atomic_inc(&garmin_data_p->req_count); if (garmin_data_p->mode == MODE_GARMIN_SERIAL) { pkt_clear(garmin_data_p); garmin_data_p->state = STATE_GSP_WAIT_DATA; @@ -1113,13 +1129,6 @@ static int garmin_write_bulk (struct usb_serial_port *port, "failed with status = %d\n", __FUNCTION__, status); count = status; - } else { - - if (GARMIN_LAYERID_APPL == getLayerId(buffer) - && (garmin_data_p->mode == MODE_GARMIN_SERIAL)) { - - gsp_send_ack(garmin_data_p, buffer[4]); - } } /* we are done with this urb, so let the host driver @@ -1134,7 +1143,6 @@ static int garmin_write_bulk (struct usb_serial_port *port, static int garmin_write (struct usb_serial_port *port, const unsigned char *buf, int count) { - unsigned long flags; int pktid, pktsiz, len; struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); __le32 *privpkt = (__le32 *)garmin_data_p->privpkt; @@ -1185,9 +1193,7 @@ static int garmin_write (struct usb_serial_port *port, break; case PRIV_PKTID_RESET_REQ: - spin_lock_irqsave(&garmin_data_p->lock, flags); - garmin_data_p->flags |= FLAGS_APP_REQ_SEEN; - spin_unlock_irqrestore(&garmin_data_p->lock, flags); + atomic_inc(&garmin_data_p->req_count); break; case PRIV_PKTID_SET_DEF_MODE: @@ -1240,8 +1246,6 @@ static int garmin_chars_in_buffer (struct usb_serial_port *port) static void garmin_read_process(struct garmin_data * garmin_data_p, unsigned char *data, unsigned data_length) { - unsigned long flags; - if (garmin_data_p->flags & FLAGS_DROP_DATA) { /* abort-transfer cmd is actice */ dbg("%s - pkt dropped", __FUNCTION__); @@ -1253,9 +1257,7 @@ static void garmin_read_process(struct garmin_data * garmin_data_p, the device */ if (0 == memcmp(data, GARMIN_APP_LAYER_REPLY, sizeof(GARMIN_APP_LAYER_REPLY))) { - spin_lock_irqsave(&garmin_data_p->lock, flags); - garmin_data_p->flags |= FLAGS_APP_RESP_SEEN; - spin_unlock_irqrestore(&garmin_data_p->lock, flags); + atomic_inc(&garmin_data_p->resp_count); } /* if throttling is active or postprecessing is required @@ -1281,7 +1283,8 @@ static void garmin_read_bulk_callback (struct urb *urb) struct usb_serial *serial = port->serial; struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); unsigned char *data = urb->transfer_buffer; - int status; + int status = urb->status; + int retval; dbg("%s - port %d", __FUNCTION__, port->number); @@ -1290,9 +1293,9 @@ static void garmin_read_bulk_callback (struct urb *urb) return; } - if (urb->status) { + if (status) { dbg("%s - nonzero read bulk status received: %d", - __FUNCTION__, urb->status); + __FUNCTION__, status); return; } @@ -1306,19 +1309,19 @@ static void garmin_read_bulk_callback (struct urb *urb) spin_lock_irqsave(&garmin_data_p->lock, flags); garmin_data_p->flags &= ~FLAGS_BULK_IN_RESTART; spin_unlock_irqrestore(&garmin_data_p->lock, flags); - status = usb_submit_urb(port->read_urb, GFP_ATOMIC); - if (status) + retval = usb_submit_urb(port->read_urb, GFP_ATOMIC); + if (retval) dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", - __FUNCTION__, status); + __FUNCTION__, retval); } else if (urb->actual_length > 0) { /* Continue trying to read until nothing more is received */ if (0 == (garmin_data_p->flags & FLAGS_THROTTLED)) { - status = usb_submit_urb(port->read_urb, GFP_ATOMIC); - if (status) + retval = usb_submit_urb(port->read_urb, GFP_ATOMIC); + if (retval) dev_err(&port->dev, - "%s - failed resubmitting read urb, error %d\n", - __FUNCTION__, status); + "%s - failed resubmitting read urb, " + "error %d\n", __FUNCTION__, retval); } } else { dbg("%s - end of bulk data", __FUNCTION__); @@ -1333,13 +1336,14 @@ static void garmin_read_bulk_callback (struct urb *urb) static void garmin_read_int_callback (struct urb *urb) { unsigned long flags; - int status; + int retval; struct usb_serial_port *port = (struct usb_serial_port *)urb->context; struct usb_serial *serial = port->serial; struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); unsigned char *data = urb->transfer_buffer; + int status = urb->status; - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -1348,11 +1352,11 @@ static void garmin_read_int_callback (struct urb *urb) case -ESHUTDOWN: /* this urb is terminated, clean up */ dbg("%s - urb shutting down with status: %d", - __FUNCTION__, urb->status); + __FUNCTION__, status); return; default: dbg("%s - nonzero urb status received: %d", - __FUNCTION__, urb->status); + __FUNCTION__, status); return; } @@ -1374,11 +1378,11 @@ static void garmin_read_int_callback (struct urb *urb) port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length, garmin_read_bulk_callback, port); - status = usb_submit_urb(port->read_urb, GFP_ATOMIC); - if (status) { + retval = usb_submit_urb(port->read_urb, GFP_ATOMIC); + if (retval) { dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", - __FUNCTION__, status); + __FUNCTION__, retval); } else { spin_lock_irqsave(&garmin_data_p->lock, flags); garmin_data_p->flags |= FLAGS_BULK_IN_ACTIVE; @@ -1422,11 +1426,11 @@ static void garmin_read_int_callback (struct urb *urb) } port->interrupt_in_urb->dev = port->serial->dev; - status = usb_submit_urb (urb, GFP_ATOMIC); - if (status) + retval = usb_submit_urb (urb, GFP_ATOMIC); + if (retval) dev_err(&urb->dev->dev, "%s - Error %d submitting interrupt urb\n", - __FUNCTION__, status); + __FUNCTION__, retval); } diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index 4f8282ad7720..88a2c7dce335 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -69,6 +69,7 @@ struct usb_serial_driver usb_serial_generic_device = { .shutdown = usb_serial_generic_shutdown, .throttle = usb_serial_generic_throttle, .unthrottle = usb_serial_generic_unthrottle, + .resume = usb_serial_generic_resume, }; static int generic_probe(struct usb_interface *interface, @@ -169,6 +170,23 @@ static void generic_cleanup (struct usb_serial_port *port) } } +int usb_serial_generic_resume(struct usb_serial *serial) +{ + struct usb_serial_port *port; + int i, c = 0, r; + + for (i = 0; i < serial->num_ports; i++) { + port = serial->port[i]; + if (port->open_count && port->read_urb) { + r = usb_submit_urb(port->read_urb, GFP_NOIO); + if (r < 0) + c++; + } + } + + return c ? -EIO : 0; +} + void usb_serial_generic_close (struct usb_serial_port *port, struct file * filp) { dbg("%s - port %d", __FUNCTION__, port->number); @@ -263,79 +281,82 @@ int usb_serial_generic_chars_in_buffer (struct usb_serial_port *port) return (chars); } -/* Push data to tty layer and resubmit the bulk read URB */ -static void flush_and_resubmit_read_urb (struct usb_serial_port *port) + +static void resubmit_read_urb(struct usb_serial_port *port, gfp_t mem_flags) { - struct usb_serial *serial = port->serial; struct urb *urb = port->read_urb; - struct tty_struct *tty = port->tty; + struct usb_serial *serial = port->serial; int result; - /* Push data to tty */ - if (tty && urb->actual_length) { - tty_buffer_request_room(tty, urb->actual_length); - tty_insert_flip_string(tty, urb->transfer_buffer, urb->actual_length); - tty_flip_buffer_push(tty); /* is this allowed from an URB callback ? */ - } - /* Continue reading from device */ - usb_fill_bulk_urb (port->read_urb, serial->dev, + usb_fill_bulk_urb (urb, serial->dev, usb_rcvbulkpipe (serial->dev, port->bulk_in_endpointAddress), - port->read_urb->transfer_buffer, - port->read_urb->transfer_buffer_length, + urb->transfer_buffer, + urb->transfer_buffer_length, ((serial->type->read_bulk_callback) ? serial->type->read_bulk_callback : usb_serial_generic_read_bulk_callback), port); - result = usb_submit_urb(port->read_urb, GFP_ATOMIC); + result = usb_submit_urb(urb, mem_flags); if (result) dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result); } +/* Push data to tty layer and resubmit the bulk read URB */ +static void flush_and_resubmit_read_urb (struct usb_serial_port *port) +{ + struct urb *urb = port->read_urb; + struct tty_struct *tty = port->tty; + int room; + + /* Push data to tty */ + if (tty && urb->actual_length) { + room = tty_buffer_request_room(tty, urb->actual_length); + if (room) { + tty_insert_flip_string(tty, urb->transfer_buffer, room); + tty_flip_buffer_push(tty); /* is this allowed from an URB callback ? */ + } + } + + resubmit_read_urb(port, GFP_ATOMIC); +} + void usb_serial_generic_read_bulk_callback (struct urb *urb) { struct usb_serial_port *port = (struct usb_serial_port *)urb->context; unsigned char *data = urb->transfer_buffer; - int is_throttled; - unsigned long flags; + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); - if (urb->status) { - dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status); + if (unlikely(status != 0)) { + dbg("%s - nonzero read bulk status received: %d", + __FUNCTION__, status); return; } usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data); /* Throttle the device if requested by tty */ - if (urb->actual_length) { - spin_lock_irqsave(&port->lock, flags); - is_throttled = port->throttled = port->throttle_req; - spin_unlock_irqrestore(&port->lock, flags); - if (is_throttled) { - /* Let the received data linger in the read URB; - * usb_serial_generic_unthrottle() will pick it - * up later. */ - dbg("%s - throttling device", __FUNCTION__); - return; - } - } - - /* Handle data and continue reading from device */ - flush_and_resubmit_read_urb(port); + spin_lock(&port->lock); + if (!(port->throttled = port->throttle_req)) + /* Handle data and continue reading from device */ + flush_and_resubmit_read_urb(port); + spin_unlock(&port->lock); } EXPORT_SYMBOL_GPL(usb_serial_generic_read_bulk_callback); void usb_serial_generic_write_bulk_callback (struct urb *urb) { struct usb_serial_port *port = (struct usb_serial_port *)urb->context; + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); port->write_urb_busy = 0; - if (urb->status) { - dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero write bulk status received: %d", + __FUNCTION__, status); return; } @@ -370,8 +391,8 @@ void usb_serial_generic_unthrottle (struct usb_serial_port *port) spin_unlock_irqrestore(&port->lock, flags); if (was_throttled) { - /* Handle pending data and resume reading from device */ - flush_and_resubmit_read_urb(port); + /* Resume reading from device */ + resubmit_read_urb(port, GFP_KERNEL); } } diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c index 0f99e07614b7..2ecb1d2a034d 100644 --- a/drivers/usb/serial/io_edgeport.c +++ b/drivers/usb/serial/io_edgeport.c @@ -599,10 +599,11 @@ static void edge_interrupt_callback (struct urb *urb) int txCredits; int portNumber; int result; + int status = urb->status; dbg("%s", __FUNCTION__); - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -610,10 +611,12 @@ static void edge_interrupt_callback (struct urb *urb) case -ENOENT: case -ESHUTDOWN: /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); + dbg("%s - urb shutting down with status: %d", + __FUNCTION__, status); return; default: - dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); + dbg("%s - nonzero urb status received: %d", + __FUNCTION__, status); goto exit; } @@ -688,13 +691,15 @@ static void edge_bulk_in_callback (struct urb *urb) { struct edgeport_serial *edge_serial = (struct edgeport_serial *)urb->context; unsigned char *data = urb->transfer_buffer; - int status; + int retval; __u16 raw_data_length; + int status = urb->status; dbg("%s", __FUNCTION__); - if (urb->status) { - dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero read bulk status received: %d", + __FUNCTION__, status); edge_serial->read_in_progress = false; return; } @@ -722,9 +727,11 @@ static void edge_bulk_in_callback (struct urb *urb) if (edge_serial->rxBytesAvail > 0) { dbg("%s - posting a read", __FUNCTION__); edge_serial->read_urb->dev = edge_serial->serial->dev; - status = usb_submit_urb(edge_serial->read_urb, GFP_ATOMIC); - if (status) { - dev_err(&urb->dev->dev, "%s - usb_submit_urb(read bulk) failed, status = %d\n", __FUNCTION__, status); + retval = usb_submit_urb(edge_serial->read_urb, GFP_ATOMIC); + if (retval) { + dev_err(&urb->dev->dev, + "%s - usb_submit_urb(read bulk) failed, " + "retval = %d\n", __FUNCTION__, retval); edge_serial->read_in_progress = false; } } else { @@ -744,11 +751,13 @@ static void edge_bulk_out_data_callback (struct urb *urb) { struct edgeport_port *edge_port = (struct edgeport_port *)urb->context; struct tty_struct *tty; + int status = urb->status; dbg("%s", __FUNCTION__); - if (urb->status) { - dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero write bulk status received: %d", + __FUNCTION__, status); } tty = edge_port->port->tty; @@ -1504,15 +1513,6 @@ static void edge_set_termios (struct usb_serial_port *port, struct ktermios *old } cflag = tty->termios->c_cflag; - /* check that they really want us to change something */ - if (old_termios) { - if (cflag == old_termios->c_cflag && - tty->termios->c_iflag == old_termios->c_iflag) { - dbg("%s - nothing to change", __FUNCTION__); - return; - } - } - dbg("%s - clfag %08x iflag %08x", __FUNCTION__, tty->termios->c_cflag, tty->termios->c_iflag); if (old_termios) { diff --git a/drivers/usb/serial/io_fw_down3.h b/drivers/usb/serial/io_fw_down3.h index 93b56d68a27b..4496b068c50f 100644 --- a/drivers/usb/serial/io_fw_down3.h +++ b/drivers/usb/serial/io_fw_down3.h @@ -5,7 +5,7 @@ //************************************************************** -static int IMAGE_SIZE = 12749; +static int IMAGE_SIZE = 12938; struct EDGE_FIRMWARE_VERSION_INFO { @@ -16,7 +16,7 @@ struct EDGE_FIRMWARE_VERSION_INFO static struct EDGE_FIRMWARE_VERSION_INFO IMAGE_VERSION_NAME = { - 4, 10, 0 // Major, Minor, Build + 4, 80, 0 // Major, Minor, Build }; @@ -27,16 +27,16 @@ static unsigned char IMAGE_ARRAY_NAME[] = // WORD Length; // BYTE CheckSum; // }; -0xca, 0x31, -0xa8, +0x87, 0x32, +0x9a, -0x02, 0x26, 0xfe, 0x02, 0x21, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x1e, 0x00, 0x00, +0x02, 0x27, 0xbf, 0x02, 0x21, 0xb2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x01, 0x1a, 0x85, 0x3f, 0x8c, 0x85, 0x40, 0x8a, 0xc0, 0xe0, 0xc0, 0xd0, 0xc0, 0xf0, 0xc0, 0x82, 0xc0, 0x83, 0xc0, 0x00, 0xc0, 0x01, 0xc0, 0x02, 0xc0, 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0x50, 0xb9, 0xf5, 0x82, 0xeb, 0x24, 0x02, 0xb4, 0x04, 0x00, 0x50, 0xaf, 0x23, 0x23, 0x45, 0x82, 0x23, 0x90, 0x19, -0x4c, 0x73, 0xbb, 0x01, 0x06, 0x89, 0x82, 0x8a, 0x83, 0xe0, 0x22, 0x50, 0x02, 0xe7, 0x22, 0xbb, +0xfc, 0x73, 0xbb, 0x01, 0x06, 0x89, 0x82, 0x8a, 0x83, 0xe0, 0x22, 0x50, 0x02, 0xe7, 0x22, 0xbb, 0xfe, 0x02, 0xe3, 0x22, 0x89, 0x82, 0x8a, 0x83, 0xe4, 0x93, 0x22, 0xbb, 0x01, 0x0c, 0xe5, 0x82, 0x29, 0xf5, 0x82, 0xe5, 0x83, 0x3a, 0xf5, 0x83, 0xe0, 0x22, 0x50, 0x06, 0xe9, 0x25, 0x82, 0xf8, 0xe6, 0x22, 0xbb, 0xfe, 0x06, 0xe9, 0x25, 0x82, 0xf8, 0xe2, 0x22, 0xe5, 0x82, 0x29, 0xf5, 0x82, @@ -469,364 +480,365 @@ static unsigned char IMAGE_ARRAY_NAME[] = 0xe0, 0xf9, 0x22, 0xeb, 0xf0, 0xa3, 0xea, 0xf0, 0xa3, 0xe9, 0xf0, 0x22, 0xd0, 0x83, 0xd0, 0x82, 0xf8, 0xe4, 0x93, 0x70, 0x12, 0x74, 0x01, 0x93, 0x70, 0x0d, 0xa3, 0xa3, 0x93, 0xf8, 0x74, 0x01, 0x93, 0xf5, 0x82, 0x88, 0x83, 0xe4, 0x73, 0x74, 0x02, 0x93, 0x68, 0x60, 0xef, 0xa3, 0xa3, 0xa3, -0x80, 0xdf, 0xab, 0x36, 0xaa, 0x37, 0xa9, 0x38, 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0x1d, 0x98, 0xe0, +0x54, 0xdf, 0xf0, 0x22, 0x81, 0x01, 0x82, 0x02, 0x83, 0x03, 0x87, 0x40, 0x00, 0x40, 0x00, 0x40, +0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x08, 0x00, 0x78, 0x7e, 0x12, 0x22, 0xb7, 0xa3, 0xa3, +0xe0, 0xff, 0x30, 0xe7, 0x06, 0x54, 0x7f, 0xf0, 0x44, 0x80, 0xf0, 0x22, 0x85, 0x3b, 0x39, 0x85, +0x3c, 0x3a, 0x90, 0xff, 0x82, 0xe0, 0x54, 0xf7, 0xf0, 0xa3, 0xe0, 0x54, 0x7f, 0xf0, 0x22, 0xe4, +0xfe, 0xee, 0x90, 0x32, 0x04, 0x93, 0xb5, 0x07, 0x02, 0xd3, 0x22, 0x0e, 0xbe, 0x07, 0xf2, 0xc3, +0x22, 0x00, 0x08, 0x18, 0x28, 0x38, 0x01, 0x81, 0x90, 0x0a, 0x02, 0x00, 0x00, 0x11, 0x13, 0x00, +0x12, 0x10, 0x4b, 0x7f, 0x02, 0x12, 0x10, 0xda, 0x12, 0x1d, 0xf6, 0x02, 0x10, 0xce, 0x75, 0x39, +0x00, 0x8f, 0x3a, 0x12, 0x1c, 0xe0, 0x12, 0x2c, 0xd8, 0x22, 0x12, 0x1e, 0x1c, 0x12, 0x1d, 0xdf, +0x12, 0x1e, 0x14, 0x22, 0xc2, 0x08, 0x22, }; #undef IMAGE_VERSION_NAME diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index 544098d2b775..b8670905bc3a 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -48,7 +48,7 @@ /* * Version Information */ -#define DRIVER_VERSION "v0.7" +#define DRIVER_VERSION "v0.7mode043006" #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com> and David Iacovelli" #define DRIVER_DESC "Edgeport USB Serial Driver" @@ -173,8 +173,12 @@ static struct usb_device_id edgeport_2port_id_table [] = { { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) }, { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) }, { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) }, -// The 4-port shows up as two 2-port devices + /* The 4, 8 and 16 port devices show up as multiple 2 port devices */ { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) }, + { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) }, + { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) }, + { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) }, + { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) }, { } }; @@ -209,6 +213,10 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) }, { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) }, { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) }, + { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) }, + { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) }, + { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) }, + { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) }, { } }; @@ -231,6 +239,7 @@ static int TIStayInBootMode = 0; static int low_latency = EDGE_LOW_LATENCY; static int closing_wait = EDGE_CLOSING_WAIT; static int ignore_cpu_rev = 0; +static int default_uart_mode = 0; /* RS232 */ static void edge_tty_recv(struct device *dev, struct tty_struct *tty, unsigned char *data, int length); @@ -241,6 +250,10 @@ static int restart_read(struct edgeport_port *edge_port); static void edge_set_termios (struct usb_serial_port *port, struct ktermios *old_termios); static void edge_send(struct usb_serial_port *port); +/* sysfs attributes */ +static int edge_create_sysfs_attrs(struct usb_serial_port *port); +static int edge_remove_sysfs_attrs(struct usb_serial_port *port); + /* circular buffer */ static struct edge_buf *edge_buf_alloc(unsigned int size); static void edge_buf_free(struct edge_buf *eb); @@ -1706,13 +1719,14 @@ static void edge_interrupt_callback (struct urb *urb) int length = urb->actual_length; int port_number; int function; - int status; + int retval; __u8 lsr; __u8 msr; + int status = urb->status; dbg("%s", __FUNCTION__); - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -1720,10 +1734,12 @@ static void edge_interrupt_callback (struct urb *urb) case -ENOENT: case -ESHUTDOWN: /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); + dbg("%s - urb shutting down with status: %d", + __FUNCTION__, status); return; default: - dev_err(&urb->dev->dev, "%s - nonzero urb status received: %d\n", __FUNCTION__, urb->status); + dev_err(&urb->dev->dev, "%s - nonzero urb status received: " + "%d\n", __FUNCTION__, status); goto exit; } @@ -1781,10 +1797,10 @@ static void edge_interrupt_callback (struct urb *urb) } exit: - status = usb_submit_urb (urb, GFP_ATOMIC); - if (status) + retval = usb_submit_urb (urb, GFP_ATOMIC); + if (retval) dev_err (&urb->dev->dev, "%s - usb_submit_urb failed with result %d\n", - __FUNCTION__, status); + __FUNCTION__, retval); } static void edge_bulk_in_callback (struct urb *urb) @@ -1792,12 +1808,13 @@ static void edge_bulk_in_callback (struct urb *urb) struct edgeport_port *edge_port = (struct edgeport_port *)urb->context; unsigned char *data = urb->transfer_buffer; struct tty_struct *tty; - int status = 0; + int retval = 0; int port_number; + int status = urb->status; dbg("%s", __FUNCTION__); - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -1805,17 +1822,18 @@ static void edge_bulk_in_callback (struct urb *urb) case -ENOENT: case -ESHUTDOWN: /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); + dbg("%s - urb shutting down with status: %d", + __FUNCTION__, status); return; default: dev_err (&urb->dev->dev,"%s - nonzero read bulk status received: %d\n", - __FUNCTION__, urb->status ); + __FUNCTION__, status); } - if (urb->status == -EPIPE) + if (status == -EPIPE) goto exit; - if (urb->status) { + if (status) { dev_err(&urb->dev->dev,"%s - stopping read!\n", __FUNCTION__); return; } @@ -1849,14 +1867,14 @@ exit: spin_lock(&edge_port->ep_lock); if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) { urb->dev = edge_port->port->serial->dev; - status = usb_submit_urb(urb, GFP_ATOMIC); + retval = usb_submit_urb(urb, GFP_ATOMIC); } else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING) { edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED; } spin_unlock(&edge_port->ep_lock); - if (status) + if (retval) dev_err (&urb->dev->dev, "%s - usb_submit_urb failed with result %d\n", - __FUNCTION__, status); + __FUNCTION__, retval); } static void edge_tty_recv(struct device *dev, struct tty_struct *tty, unsigned char *data, int length) @@ -1883,12 +1901,13 @@ static void edge_bulk_out_callback (struct urb *urb) { struct usb_serial_port *port = (struct usb_serial_port *)urb->context; struct edgeport_port *edge_port = usb_get_serial_port_data(port); + int status = urb->status; dbg ("%s - port %d", __FUNCTION__, port->number); edge_port->ep_write_urb_in_use = 0; - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -1896,11 +1915,12 @@ static void edge_bulk_out_callback (struct urb *urb) case -ENOENT: case -ESHUTDOWN: /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); + dbg("%s - urb shutting down with status: %d", + __FUNCTION__, status); return; default: - dev_err (&urb->dev->dev,"%s - nonzero write bulk status received: %d\n", - __FUNCTION__, urb->status); + dev_err(&urb->dev->dev, "%s - nonzero write bulk status " + "received: %d\n", __FUNCTION__, status); } /* send any buffered data */ @@ -2351,7 +2371,7 @@ static int restart_read(struct edgeport_port *edge_port) urb->complete = edge_bulk_in_callback; urb->context = edge_port; urb->dev = edge_port->port->serial->dev; - status = usb_submit_urb(urb, GFP_KERNEL); + status = usb_submit_urb(urb, GFP_ATOMIC); } edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; edge_port->shadow_mcr |= MCR_RTS; @@ -2524,14 +2544,6 @@ static void edge_set_termios (struct usb_serial_port *port, struct ktermios *old } cflag = tty->termios->c_cflag; - /* check that they really want us to change something */ - if (old_termios) { - if (cflag == old_termios->c_cflag && - tty->termios->c_iflag == old_termios->c_iflag) { - dbg ("%s - nothing to change", __FUNCTION__); - return; - } - } dbg("%s - clfag %08x iflag %08x", __FUNCTION__, tty->termios->c_cflag, tty->termios->c_iflag); @@ -2758,7 +2770,7 @@ static int edge_startup (struct usb_serial *serial) edge_port->port = serial->port[i]; edge_port->edge_serial = edge_serial; usb_set_serial_port_data(serial->port[i], edge_port); - edge_port->bUartMode = 0; /* Default is RS232 */ + edge_port->bUartMode = default_uart_mode; } return 0; @@ -2782,19 +2794,60 @@ static void edge_shutdown (struct usb_serial *serial) dbg ("%s", __FUNCTION__); - for (i=0; i < serial->num_ports; ++i) { + for (i = 0; i < serial->num_ports; ++i) { edge_port = usb_get_serial_port_data(serial->port[i]); - if (edge_port) { - edge_buf_free(edge_port->ep_out_buf); - kfree(edge_port); - } + edge_remove_sysfs_attrs(edge_port->port); + edge_buf_free(edge_port->ep_out_buf); + kfree(edge_port); usb_set_serial_port_data(serial->port[i], NULL); } - kfree (usb_get_serial_data(serial)); + kfree(usb_get_serial_data(serial)); usb_set_serial_data(serial, NULL); } +/* Sysfs Attributes */ + +static ssize_t show_uart_mode(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct usb_serial_port *port = to_usb_serial_port(dev); + struct edgeport_port *edge_port = usb_get_serial_port_data(port); + + return sprintf(buf, "%d\n", edge_port->bUartMode); +} + +static ssize_t store_uart_mode(struct device *dev, + struct device_attribute *attr, const char *valbuf, size_t count) +{ + struct usb_serial_port *port = to_usb_serial_port(dev); + struct edgeport_port *edge_port = usb_get_serial_port_data(port); + unsigned int v = simple_strtoul(valbuf, NULL, 0); + + dbg("%s: setting uart_mode = %d", __FUNCTION__, v); + + if (v < 256) + edge_port->bUartMode = v; + else + dev_err(dev, "%s - uart_mode %d is invalid\n", __FUNCTION__, v); + + return count; +} + +static DEVICE_ATTR(uart_mode, S_IWUSR | S_IRUGO, show_uart_mode, store_uart_mode); + +static int edge_create_sysfs_attrs(struct usb_serial_port *port) +{ + return device_create_file(&port->dev, &dev_attr_uart_mode); +} + +static int edge_remove_sysfs_attrs(struct usb_serial_port *port) +{ + device_remove_file(&port->dev, &dev_attr_uart_mode); + return 0; +} + + /* Circular Buffer */ /* @@ -2991,6 +3044,7 @@ static struct usb_serial_driver edgeport_1port_device = { .unthrottle = edge_unthrottle, .attach = edge_startup, .shutdown = edge_shutdown, + .port_probe = edge_create_sysfs_attrs, .ioctl = edge_ioctl, .set_termios = edge_set_termios, .tiocmget = edge_tiocmget, @@ -3022,6 +3076,7 @@ static struct usb_serial_driver edgeport_2port_device = { .unthrottle = edge_unthrottle, .attach = edge_startup, .shutdown = edge_shutdown, + .port_probe = edge_create_sysfs_attrs, .ioctl = edge_ioctl, .set_termios = edge_set_termios, .tiocmget = edge_tiocmget, @@ -3085,3 +3140,6 @@ MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain, in .01 secs"); module_param(ignore_cpu_rev, bool, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(ignore_cpu_rev, "Ignore the cpu revision when connecting to a device"); +module_param(default_uart_mode, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(default_uart_mode, "Default uart_mode, 0=RS232, ..."); + diff --git a/drivers/usb/serial/io_usbvend.h b/drivers/usb/serial/io_usbvend.h index e57fa117e486..8e1a491e52a9 100644 --- a/drivers/usb/serial/io_usbvend.h +++ b/drivers/usb/serial/io_usbvend.h @@ -131,7 +131,7 @@ #define ION_DEVICE_ID_TI_EDGEPORT_2I 0x0207 // Edgeport/2i RS422/RS485 #define ION_DEVICE_ID_TI_EDGEPORT_421 0x020C // Edgeport/421 4 hub 2 RS232 + Parallel (lucent on a different hub port) #define ION_DEVICE_ID_TI_EDGEPORT_21 0x020D // Edgeport/21 2 RS232 + Parallel (lucent on a different hub port) -#define ION_DEVICE_ID_TI_EDGEPORT_8 0x020F // Edgeport/8 (single-CPU) +#define ION_DEVICE_ID_TI_EDGEPORT_416 0x0212 // Edgeport/416 #define ION_DEVICE_ID_TI_EDGEPORT_1 0x0215 // Edgeport/1 RS232 #define ION_DEVICE_ID_TI_EDGEPORT_42 0x0217 // Edgeport/42 4 hub 2 RS232 #define ION_DEVICE_ID_TI_EDGEPORT_22I 0x021A // Edgeport/22I is an Edgeport/4 with ports 1&2 RS422 and ports 3&4 RS232 @@ -143,12 +143,14 @@ #define ION_DEVICE_ID_TI_EDGEPORT_21C 0x021E // Edgeport/21c is a TI based Edgeport/2 with lucent chip // Generation 3 devices -- 3410 based edgport/1 (256 byte I2C) -#define ION_DEVICE_ID_TI_TI3410_EDGEPORT_1 0x240 // Edgeport/1 RS232 -#define ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I 0x241 // Edgeport/1i- RS422 model +#define ION_DEVICE_ID_TI_TI3410_EDGEPORT_1 0x0240 // Edgeport/1 RS232 +#define ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I 0x0241 // Edgeport/1i- RS422 model // Ti based software switchable RS232/RS422/RS485 devices -#define ION_DEVICE_ID_TI_EDGEPORT_4S 0x242 // Edgeport/4s - software switchable model -#define ION_DEVICE_ID_IT_EDGEPORT_8S 0x243 // Edgeport/8s - software switchable model +#define ION_DEVICE_ID_TI_EDGEPORT_4S 0x0242 // Edgeport/4s - software switchable model +#define ION_DEVICE_ID_TI_EDGEPORT_8S 0x0243 // Edgeport/8s - software switchable model +#define ION_DEVICE_ID_TI_EDGEPORT_8 0x0244 // Edgeport/8 (single-CPU) +#define ION_DEVICE_ID_TI_EDGEPORT_416B 0x0247 // Edgeport/416 /************************************************************************ diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c index 4df0ec74e0b1..6a3a704b5849 100644 --- a/drivers/usb/serial/ipaq.c +++ b/drivers/usb/serial/ipaq.c @@ -545,6 +545,7 @@ static struct usb_device_id ipaq_id_table [] = { { USB_DEVICE(0x413C, 0x4009) }, /* Dell Axim USB Sync */ { USB_DEVICE(0x4505, 0x0010) }, /* Smartphone */ { USB_DEVICE(0x5E04, 0xCE00) }, /* SAGEM Wireless Assistant */ + { USB_DEVICE(0x0BB4, 0x00CF) }, /* HTC smartphone modems */ { } /* Terminating entry */ }; @@ -732,11 +733,13 @@ static void ipaq_read_bulk_callback(struct urb *urb) struct tty_struct *tty; unsigned char *data = urb->transfer_buffer; int result; + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); - if (urb->status) { - dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero read bulk status received: %d", + __FUNCTION__, status); return; } @@ -870,11 +873,13 @@ static void ipaq_write_bulk_callback(struct urb *urb) struct ipaq_private *priv = usb_get_serial_port_data(port); unsigned long flags; int result; + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); - - if (urb->status) { - dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); + + if (status) { + dbg("%s - nonzero write bulk status received: %d", + __FUNCTION__, status); return; } diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c index 1bc586064c77..1b94daa61584 100644 --- a/drivers/usb/serial/ipw.c +++ b/drivers/usb/serial/ipw.c @@ -167,11 +167,13 @@ static void ipw_read_bulk_callback(struct urb *urb) unsigned char *data = urb->transfer_buffer; struct tty_struct *tty; int result; + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); - if (urb->status) { - dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero read bulk status received: %d", + __FUNCTION__, status); return; } @@ -369,13 +371,15 @@ static void ipw_close(struct usb_serial_port *port, struct file * filp) static void ipw_write_bulk_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; + int status = urb->status; dbg("%s", __FUNCTION__); port->write_urb_busy = 0; - if (urb->status) - dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); + if (status) + dbg("%s - nonzero write bulk status received: %d", + __FUNCTION__, status); usb_serial_port_softint(port); } diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c index 9d847f69291c..5ab6a0c5ac52 100644 --- a/drivers/usb/serial/ir-usb.c +++ b/drivers/usb/serial/ir-usb.c @@ -21,6 +21,10 @@ * * See Documentation/usb/usb-serial.txt for more information on using this driver * + * 2007_Jun_21 Alan Cox <alan@redhat.com> + * Minimal cleanups for some of the driver problens and tty layer abuse. + * Still needs fixing to allow multiple dongles. + * * 2002_Mar_07 greg kh * moved some needed structures and #define values from the * net/irda/irda-usb.h file into our file, as we don't want to depend on @@ -109,6 +113,7 @@ static void ir_write_bulk_callback (struct urb *urb); static void ir_read_bulk_callback (struct urb *urb); static void ir_set_termios (struct usb_serial_port *port, struct ktermios *old_termios); +/* Not that this lot means you can only have one per system */ static u8 ir_baud = 0; static u8 ir_xbof = 0; static u8 ir_add_bof = 0; @@ -392,12 +397,14 @@ static int ir_write (struct usb_serial_port *port, const unsigned char *buf, int static void ir_write_bulk_callback (struct urb *urb) { struct usb_serial_port *port = (struct usb_serial_port *)urb->context; + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); port->write_urb_busy = 0; - if (urb->status) { - dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero write bulk status received: %d", + __FUNCTION__, status); return; } @@ -417,6 +424,7 @@ static void ir_read_bulk_callback (struct urb *urb) struct tty_struct *tty; unsigned char *data = urb->transfer_buffer; int result; + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); @@ -425,8 +433,7 @@ static void ir_read_bulk_callback (struct urb *urb) return; } - switch (urb->status) { - + switch (status) { case 0: /* Successful */ /* @@ -444,22 +451,12 @@ static void ir_read_bulk_callback (struct urb *urb) urb->actual_length, data); - /* - * Bypass flip-buffers, and feed the ldisc directly - * due to our potentially large buffer size. Since we - * used to set low_latency, this is exactly what the - * tty layer did anyway :) - */ tty = port->tty; - /* - * FIXME: must not do this in IRQ context - */ - tty->ldisc.receive_buf( - tty, - data+1, - NULL, - urb->actual_length-1); + if (tty_buffer_request_room(tty, urb->actual_length - 1)) { + tty_insert_flip_string(tty, data+1, urb->actual_length - 1); + tty_flip_buffer_push(tty); + } /* * No break here. @@ -490,7 +487,7 @@ static void ir_read_bulk_callback (struct urb *urb) default: dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, - urb->status); + status); break ; } @@ -501,8 +498,9 @@ static void ir_read_bulk_callback (struct urb *urb) static void ir_set_termios (struct usb_serial_port *port, struct ktermios *old_termios) { unsigned char *transfer_buffer; - unsigned int cflag; int result; + speed_t baud; + int ir_baud; dbg("%s - port %d", __FUNCTION__, port->number); @@ -511,77 +509,59 @@ static void ir_set_termios (struct usb_serial_port *port, struct ktermios *old_t return; } - cflag = port->tty->termios->c_cflag; - /* check that they really want us to change something */ - if (old_termios) { - if ((cflag == old_termios->c_cflag) && - (RELEVANT_IFLAG(port->tty->termios->c_iflag) == RELEVANT_IFLAG(old_termios->c_iflag))) { - dbg("%s - nothing to change...", __FUNCTION__); - return; - } + baud = tty_get_baud_rate(port->tty); + + /* + * FIXME, we should compare the baud request against the + * capability stated in the IR header that we got in the + * startup function. + */ + + switch (baud) { + case 2400: ir_baud = SPEED_2400; break; + case 9600: ir_baud = SPEED_9600; break; + case 19200: ir_baud = SPEED_19200; break; + case 38400: ir_baud = SPEED_38400; break; + case 57600: ir_baud = SPEED_57600; break; + case 115200: ir_baud = SPEED_115200; break; + case 576000: ir_baud = SPEED_576000; break; + case 1152000: ir_baud = SPEED_1152000; break; + case 4000000: ir_baud = SPEED_4000000; break; + break; + default: + ir_baud = SPEED_9600; + baud = 9600; + /* And once the new tty stuff is all done we need to + call back to correct the baud bits */ } - /* All we can change is the baud rate */ - if (cflag & CBAUD) { - - dbg ("%s - asking for baud %d", - __FUNCTION__, - tty_get_baud_rate(port->tty)); - - /* - * FIXME, we should compare the baud request against the - * capability stated in the IR header that we got in the - * startup function. - */ - switch (cflag & CBAUD) { - case B2400: ir_baud = SPEED_2400; break; - default: - case B9600: ir_baud = SPEED_9600; break; - case B19200: ir_baud = SPEED_19200; break; - case B38400: ir_baud = SPEED_38400; break; - case B57600: ir_baud = SPEED_57600; break; - case B115200: ir_baud = SPEED_115200; break; - case B576000: ir_baud = SPEED_576000; break; - case B1152000: ir_baud = SPEED_1152000; break; -#ifdef B4000000 - case B4000000: ir_baud = SPEED_4000000; break; -#endif - } + if (xbof == -1) + ir_xbof = ir_xbof_change(ir_add_bof); + else + ir_xbof = ir_xbof_change(xbof) ; - if (xbof == -1) { - ir_xbof = ir_xbof_change(ir_add_bof); - } else { - ir_xbof = ir_xbof_change(xbof) ; - } + /* FIXME need to check to see if our write urb is busy right + * now, or use a urb pool. + * + * send the baud change out on an "empty" data packet + */ + transfer_buffer = port->write_urb->transfer_buffer; + *transfer_buffer = ir_xbof | ir_baud; - /* Notify the tty driver that the termios have changed. */ - port->tty->ldisc.set_termios(port->tty, NULL); - - /* FIXME need to check to see if our write urb is busy right - * now, or use a urb pool. - * - * send the baud change out on an "empty" data packet - */ - transfer_buffer = port->write_urb->transfer_buffer; - *transfer_buffer = ir_xbof | ir_baud; - - usb_fill_bulk_urb ( - port->write_urb, - port->serial->dev, - usb_sndbulkpipe(port->serial->dev, - port->bulk_out_endpointAddress), - port->write_urb->transfer_buffer, - 1, - ir_write_bulk_callback, - port); - - port->write_urb->transfer_flags = URB_ZERO_PACKET; - - result = usb_submit_urb (port->write_urb, GFP_KERNEL); - if (result) - dev_err(&port->dev, "%s - failed submitting write urb, error %d\n", __FUNCTION__, result); - } - return; + usb_fill_bulk_urb ( + port->write_urb, + port->serial->dev, + usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress), + port->write_urb->transfer_buffer, + 1, + ir_write_bulk_callback, + port); + + port->write_urb->transfer_flags = URB_ZERO_PACKET; + + result = usb_submit_urb (port->write_urb, GFP_KERNEL); + if (result) + dev_err(&port->dev, "%s - failed submitting write urb, error %d\n", __FUNCTION__, result); } diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index e6966f12ed5a..f2a6fce5de1e 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -115,12 +115,13 @@ static int debug; /* * Version Information */ -#define DRIVER_VERSION "v1.1.4" +#define DRIVER_VERSION "v1.1.5" #define DRIVER_AUTHOR "Hugh Blemings <hugh@misc.nu" #define DRIVER_DESC "Keyspan USB to Serial Converter Driver" #define INSTAT_BUFLEN 32 #define GLOCONT_BUFLEN 64 +#define INDAT49W_BUFLEN 512 /* Per device and per port private data */ struct keyspan_serial_private { @@ -129,9 +130,15 @@ struct keyspan_serial_private { struct urb *instat_urb; char instat_buf[INSTAT_BUFLEN]; + /* added to support 49wg, where data from all 4 ports comes in on 1 EP */ + /* and high-speed supported */ + struct urb *indat_urb; + char indat_buf[INDAT49W_BUFLEN]; + /* XXX this one probably will need a lock */ struct urb *glocont_urb; char glocont_buf[GLOCONT_BUFLEN]; + char ctrl_buf[8]; // for EP0 control message }; struct keyspan_port_private { @@ -179,12 +186,13 @@ struct keyspan_port_private { /* Include Keyspan message headers. All current Keyspan Adapters - make use of one of four message formats which are referred - to as USA-26, USA-28 and USA-49, USA-90 by Keyspan and within this driver. */ + make use of one of five message formats which are referred + to as USA-26, USA-28, USA-49, USA-90, USA-67 by Keyspan and within this driver. */ #include "keyspan_usa26msg.h" #include "keyspan_usa28msg.h" #include "keyspan_usa49msg.h" #include "keyspan_usa90msg.h" +#include "keyspan_usa67msg.h" /* Functions used by new usb-serial code. */ @@ -419,14 +427,15 @@ static void usa26_indat_callback(struct urb *urb) struct usb_serial_port *port; struct tty_struct *tty; unsigned char *data = urb->transfer_buffer; + int status = urb->status; dbg ("%s", __FUNCTION__); endpoint = usb_pipeendpoint(urb->pipe); - if (urb->status) { + if (status) { dbg("%s - nonzero status: %x on endpoint %d.", - __FUNCTION__, urb->status, endpoint); + __FUNCTION__, status, endpoint); return; } @@ -511,11 +520,12 @@ static void usa26_instat_callback(struct urb *urb) struct usb_serial_port *port; struct keyspan_port_private *p_priv; int old_dcd_state, err; + int status = urb->status; serial = (struct usb_serial *) urb->context; - if (urb->status) { - dbg("%s - nonzero status: %x", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero status: %x", __FUNCTION__, status); return; } if (urb->actual_length != 9) { @@ -579,6 +589,7 @@ static void usa28_indat_callback(struct urb *urb) struct tty_struct *tty; unsigned char *data; struct keyspan_port_private *p_priv; + int status = urb->status; dbg ("%s", __FUNCTION__); @@ -590,9 +601,9 @@ static void usa28_indat_callback(struct urb *urb) return; do { - if (urb->status) { + if (status) { dbg("%s - nonzero status: %x on endpoint %d.", - __FUNCTION__, urb->status, usb_pipeendpoint(urb->pipe)); + __FUNCTION__, status, usb_pipeendpoint(urb->pipe)); return; } @@ -648,11 +659,12 @@ static void usa28_instat_callback(struct urb *urb) struct usb_serial_port *port; struct keyspan_port_private *p_priv; int old_dcd_state; + int status = urb->status; serial = (struct usb_serial *) urb->context; - if (urb->status) { - dbg("%s - nonzero status: %x", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero status: %x", __FUNCTION__, status); return; } @@ -739,13 +751,14 @@ static void usa49_instat_callback(struct urb *urb) struct usb_serial_port *port; struct keyspan_port_private *p_priv; int old_dcd_state; + int status = urb->status; dbg ("%s", __FUNCTION__); serial = (struct usb_serial *) urb->context; - if (urb->status) { - dbg("%s - nonzero status: %x", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero status: %x", __FUNCTION__, status); return; } @@ -805,14 +818,15 @@ static void usa49_indat_callback(struct urb *urb) struct usb_serial_port *port; struct tty_struct *tty; unsigned char *data = urb->transfer_buffer; + int status = urb->status; dbg ("%s", __FUNCTION__); endpoint = usb_pipeendpoint(urb->pipe); - if (urb->status) { + if (status) { dbg("%s - nonzero status: %x on endpoint %d.", __FUNCTION__, - urb->status, endpoint); + status, endpoint); return; } @@ -850,13 +864,90 @@ static void usa49_indat_callback(struct urb *urb) } } +static void usa49wg_indat_callback(struct urb *urb) +{ + int i, len, x, err; + struct usb_serial *serial; + struct usb_serial_port *port; + struct tty_struct *tty; + unsigned char *data = urb->transfer_buffer; + int status = urb->status; + + dbg ("%s", __FUNCTION__); + + serial = urb->context; + + if (status) { + dbg("%s - nonzero status: %x", __FUNCTION__, status); + return; + } + + /* inbound data is in the form P#, len, status, data */ + i = 0; + len = 0; + + if (urb->actual_length) { + while (i < urb->actual_length) { + + /* Check port number from message*/ + if (data[i] >= serial->num_ports) { + dbg ("%s - Unexpected port number %d", + __FUNCTION__, data[i]); + return; + } + port = serial->port[data[i++]]; + tty = port->tty; + len = data[i++]; + + /* 0x80 bit is error flag */ + if ((data[i] & 0x80) == 0) { + /* no error on any byte */ + i++; + for (x = 1; x < len ; ++x) + if (port->open_count) + tty_insert_flip_char(tty, + data[i++], 0); + else + i++; + } else { + /* + * some bytes had errors, every byte has status + */ + for (x = 0; x + 1 < len; x += 2) { + int stat = data[i], flag = 0; + if (stat & RXERROR_OVERRUN) + flag |= TTY_OVERRUN; + if (stat & RXERROR_FRAMING) + flag |= TTY_FRAME; + if (stat & RXERROR_PARITY) + flag |= TTY_PARITY; + /* XXX should handle break (0x10) */ + if (port->open_count) + tty_insert_flip_char(tty, + data[i+1], flag); + i += 2; + } + } + if (port->open_count) + tty_flip_buffer_push(tty); + } + } + + /* Resubmit urb so we continue receiving */ + urb->dev = serial->dev; + + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err != 0) + dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err); +} + /* not used, usa-49 doesn't have per-port control endpoints */ -static void usa49_outcont_callback(struct urb *urb) +static void usa49_outcont_callback(struct urb *urb) { dbg ("%s", __FUNCTION__); } -static void usa90_indat_callback(struct urb *urb) +static void usa90_indat_callback(struct urb *urb) { int i, err; int endpoint; @@ -864,15 +955,15 @@ static void usa90_indat_callback(struct urb *urb) struct keyspan_port_private *p_priv; struct tty_struct *tty; unsigned char *data = urb->transfer_buffer; + int status = urb->status; dbg ("%s", __FUNCTION__); endpoint = usb_pipeendpoint(urb->pipe); - - if (urb->status) { + if (status) { dbg("%s - nonzero status: %x on endpoint %d.", - __FUNCTION__, urb->status, endpoint); + __FUNCTION__, status, endpoint); return; } @@ -938,11 +1029,12 @@ static void usa90_instat_callback(struct urb *urb) struct usb_serial_port *port; struct keyspan_port_private *p_priv; int old_dcd_state, err; + int status = urb->status; serial = (struct usb_serial *) urb->context; - if (urb->status) { - dbg("%s - nonzero status: %x", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero status: %x", __FUNCTION__, status); return; } if (urb->actual_length < 14) { @@ -995,6 +1087,88 @@ static void usa90_outcont_callback(struct urb *urb) } } +/* Status messages from the 28xg */ +static void usa67_instat_callback(struct urb *urb) +{ + int err; + unsigned char *data = urb->transfer_buffer; + struct keyspan_usa67_portStatusMessage *msg; + struct usb_serial *serial; + struct usb_serial_port *port; + struct keyspan_port_private *p_priv; + int old_dcd_state; + int status = urb->status; + + dbg ("%s", __FUNCTION__); + + serial = urb->context; + + if (status) { + dbg("%s - nonzero status: %x", __FUNCTION__, status); + return; + } + + if (urb->actual_length != sizeof(struct keyspan_usa67_portStatusMessage)) { + dbg("%s - bad length %d", __FUNCTION__, urb->actual_length); + return; + } + + + /* Now do something useful with the data */ + msg = (struct keyspan_usa67_portStatusMessage *)data; + + /* Check port number from message and retrieve private data */ + if (msg->port >= serial->num_ports) { + dbg ("%s - Unexpected port number %d", __FUNCTION__, msg->port); + return; + } + + port = serial->port[msg->port]; + p_priv = usb_get_serial_port_data(port); + + /* Update handshaking pin state information */ + old_dcd_state = p_priv->dcd_state; + p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0); + p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0); + + if (port->tty && !C_CLOCAL(port->tty) + && old_dcd_state != p_priv->dcd_state) { + if (old_dcd_state) + tty_hangup(port->tty); + /* else */ + /* wake_up_interruptible(&p_priv->open_wait); */ + } + + /* Resubmit urb so we continue receiving */ + urb->dev = serial->dev; + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err != 0) + dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err); +} + +static void usa67_glocont_callback(struct urb *urb) +{ + struct usb_serial *serial; + struct usb_serial_port *port; + struct keyspan_port_private *p_priv; + int i; + + dbg ("%s", __FUNCTION__); + + serial = urb->context; + for (i = 0; i < serial->num_ports; ++i) { + port = serial->port[i]; + p_priv = usb_get_serial_port_data(port); + + if (p_priv->resend_cont) { + dbg ("%s - sending setup", __FUNCTION__); + keyspan_usa67_send_setup(serial, port, + p_priv->resend_cont - 1); + break; + } + } +} + static int keyspan_write_room (struct usb_serial_port *port) { struct keyspan_port_private *p_priv; @@ -1311,6 +1485,11 @@ static struct urb *keyspan_setup_urb (struct usb_serial *serial, int endpoint, return NULL; } + if (endpoint == 0) { + /* control EP filled in when used */ + return urb; + } + ep_desc = find_ep(serial, endpoint); if (!ep_desc) { /* leak the urb, something's wrong and the callers don't care */ @@ -1380,6 +1559,14 @@ static struct callbacks { .outdat_callback = usa2x_outdat_callback, .inack_callback = usa28_inack_callback, .outcont_callback = usa90_outcont_callback, + }, { + /* msg_usa67 callbacks */ + .instat_callback = usa67_instat_callback, + .glocont_callback = usa67_glocont_callback, + .indat_callback = usa26_indat_callback, + .outdat_callback = usa2x_outdat_callback, + .inack_callback = usa26_inack_callback, + .outcont_callback = usa26_outcont_callback, } }; @@ -1410,6 +1597,11 @@ static void keyspan_setup_urbs(struct usb_serial *serial) serial, s_priv->instat_buf, INSTAT_BUFLEN, cback->instat_callback); + s_priv->indat_urb = keyspan_setup_urb + (serial, d_details->indat_endpoint, USB_DIR_IN, + serial, s_priv->indat_buf, INDAT49W_BUFLEN, + usa49wg_indat_callback); + s_priv->glocont_urb = keyspan_setup_urb (serial, d_details->glocont_endpoint, USB_DIR_OUT, serial, s_priv->glocont_buf, GLOCONT_BUFLEN, @@ -1685,8 +1877,8 @@ static int keyspan_usa26_send_setup(struct usb_serial *serial, } /* Save reset port val for resend. - Don't overwrite resend for close condition. */ - if (p_priv->resend_cont != 3) + Don't overwrite resend for open/close condition. */ + if ((reset_port + 1) > p_priv->resend_cont) p_priv->resend_cont = reset_port + 1; if (this_urb->status == -EINPROGRESS) { /* dbg ("%s - already writing", __FUNCTION__); */ @@ -1836,8 +2028,8 @@ static int keyspan_usa28_send_setup(struct usb_serial *serial, } /* Save reset port val for resend. - Don't overwrite resend for close condition. */ - if (p_priv->resend_cont != 3) + Don't overwrite resend for open/close condition. */ + if ((reset_port + 1) > p_priv->resend_cont) p_priv->resend_cont = reset_port + 1; if (this_urb->status == -EINPROGRESS) { dbg ("%s already writing", __FUNCTION__); @@ -1940,11 +2132,11 @@ static int keyspan_usa49_send_setup(struct usb_serial *serial, struct usb_serial_port *port, int reset_port) { - struct keyspan_usa49_portControlMessage msg; + struct keyspan_usa49_portControlMessage msg; + struct usb_ctrlrequest *dr = NULL; struct keyspan_serial_private *s_priv; struct keyspan_port_private *p_priv; const struct keyspan_device_details *d_details; - int glocont_urb; struct urb *this_urb; int err, device_port; @@ -1954,10 +2146,9 @@ static int keyspan_usa49_send_setup(struct usb_serial *serial, p_priv = usb_get_serial_port_data(port); d_details = s_priv->device_details; - glocont_urb = d_details->glocont_endpoint; this_urb = s_priv->glocont_urb; - /* Work out which port within the device is being setup */ + /* Work out which port within the device is being setup */ device_port = port->number - port->serial->minor; dbg("%s - endpoint %d port %d (%d)",__FUNCTION__, usb_pipeendpoint(this_urb->pipe), port->number, device_port); @@ -1969,9 +2160,10 @@ static int keyspan_usa49_send_setup(struct usb_serial *serial, } /* Save reset port val for resend. - Don't overwrite resend for close condition. */ - if (p_priv->resend_cont != 3) + Don't overwrite resend for open/close condition. */ + if ((reset_port + 1) > p_priv->resend_cont) p_priv->resend_cont = reset_port + 1; + if (this_urb->status == -EINPROGRESS) { /* dbg ("%s - already writing", __FUNCTION__); */ mdelay(5); @@ -2083,20 +2275,39 @@ static int keyspan_usa49_send_setup(struct usb_serial *serial, msg.dtr = p_priv->dtr_state; p_priv->resend_cont = 0; - memcpy (this_urb->transfer_buffer, &msg, sizeof(msg)); + + /* if the device is a 49wg, we send control message on usb control EP 0 */ + + if (d_details->product_id == keyspan_usa49wg_product_id) { + dr = (void *)(s_priv->ctrl_buf); + dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_OUT; + dr->bRequest = 0xB0; /* 49wg control message */; + dr->wValue = 0; + dr->wIndex = 0; + dr->wLength = cpu_to_le16(sizeof(msg)); + + memcpy (s_priv->glocont_buf, &msg, sizeof(msg)); + + usb_fill_control_urb(this_urb, serial->dev, usb_sndctrlpipe(serial->dev, 0), + (unsigned char *)dr, s_priv->glocont_buf, sizeof(msg), + usa49_glocont_callback, serial); + + } else { + memcpy(this_urb->transfer_buffer, &msg, sizeof(msg)); - /* send the data out the device on control endpoint */ - this_urb->transfer_buffer_length = sizeof(msg); + /* send the data out the device on control endpoint */ + this_urb->transfer_buffer_length = sizeof(msg); - this_urb->dev = serial->dev; + this_urb->dev = serial->dev; + } if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) { dbg("%s - usb_submit_urb(setup) failed (%d)", __FUNCTION__, err); } #if 0 else { dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __FUNCTION__, - outcont_urb, this_urb->transfer_buffer_length, - usb_pipeendpoint(this_urb->pipe)); + outcont_urb, this_urb->transfer_buffer_length, + usb_pipeendpoint(this_urb->pipe)); } #endif @@ -2241,6 +2452,154 @@ static int keyspan_usa90_send_setup(struct usb_serial *serial, return (0); } +static int keyspan_usa67_send_setup(struct usb_serial *serial, + struct usb_serial_port *port, + int reset_port) +{ + struct keyspan_usa67_portControlMessage msg; + struct keyspan_serial_private *s_priv; + struct keyspan_port_private *p_priv; + const struct keyspan_device_details *d_details; + struct urb *this_urb; + int err, device_port; + + dbg ("%s", __FUNCTION__); + + s_priv = usb_get_serial_data(serial); + p_priv = usb_get_serial_port_data(port); + d_details = s_priv->device_details; + + this_urb = s_priv->glocont_urb; + + /* Work out which port within the device is being setup */ + device_port = port->number - port->serial->minor; + + /* Make sure we have an urb then send the message */ + if (this_urb == NULL) { + dbg("%s - oops no urb for port %d.", __FUNCTION__, + port->number); + return -1; + } + + /* Save reset port val for resend. + Don't overwrite resend for open/close condition. */ + if ((reset_port + 1) > p_priv->resend_cont) + p_priv->resend_cont = reset_port + 1; + if (this_urb->status == -EINPROGRESS) { + /* dbg ("%s - already writing", __FUNCTION__); */ + mdelay(5); + return(-1); + } + + memset(&msg, 0, sizeof(struct keyspan_usa67_portControlMessage)); + + msg.port = device_port; + + /* Only set baud rate if it's changed */ + if (p_priv->old_baud != p_priv->baud) { + p_priv->old_baud = p_priv->baud; + msg.setClocking = 0xff; + if (d_details->calculate_baud_rate + (p_priv->baud, d_details->baudclk, &msg.baudHi, + &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE ) { + dbg("%s - Invalid baud rate %d requested, using 9600.", __FUNCTION__, + p_priv->baud); + msg.baudLo = 0; + msg.baudHi = 125; /* Values for 9600 baud */ + msg.prescaler = 10; + } + msg.setPrescaler = 0xff; + } + + msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1; + switch (p_priv->cflag & CSIZE) { + case CS5: + msg.lcr |= USA_DATABITS_5; + break; + case CS6: + msg.lcr |= USA_DATABITS_6; + break; + case CS7: + msg.lcr |= USA_DATABITS_7; + break; + case CS8: + msg.lcr |= USA_DATABITS_8; + break; + } + if (p_priv->cflag & PARENB) { + /* note USA_PARITY_NONE == 0 */ + msg.lcr |= (p_priv->cflag & PARODD)? + USA_PARITY_ODD: USA_PARITY_EVEN; + } + msg.setLcr = 0xff; + + msg.ctsFlowControl = (p_priv->flow_control == flow_cts); + msg.xonFlowControl = 0; + msg.setFlowControl = 0xff; + msg.forwardingLength = 16; + msg.xonChar = 17; + msg.xoffChar = 19; + + if (reset_port == 1) { + /* Opening port */ + msg._txOn = 1; + msg._txOff = 0; + msg.txFlush = 0; + msg.txBreak = 0; + msg.rxOn = 1; + msg.rxOff = 0; + msg.rxFlush = 1; + msg.rxForward = 0; + msg.returnStatus = 0; + msg.resetDataToggle = 0xff; + } else if (reset_port == 2) { + /* Closing port */ + msg._txOn = 0; + msg._txOff = 1; + msg.txFlush = 0; + msg.txBreak = 0; + msg.rxOn = 0; + msg.rxOff = 1; + msg.rxFlush = 1; + msg.rxForward = 0; + msg.returnStatus = 0; + msg.resetDataToggle = 0; + } else { + /* Sending intermediate configs */ + msg._txOn = (! p_priv->break_on); + msg._txOff = 0; + msg.txFlush = 0; + msg.txBreak = (p_priv->break_on); + msg.rxOn = 0; + msg.rxOff = 0; + msg.rxFlush = 0; + msg.rxForward = 0; + msg.returnStatus = 0; + msg.resetDataToggle = 0x0; + } + + /* Do handshaking outputs */ + msg.setTxTriState_setRts = 0xff; + msg.txTriState_rts = p_priv->rts_state; + + msg.setHskoa_setDtr = 0xff; + msg.hskoa_dtr = p_priv->dtr_state; + + p_priv->resend_cont = 0; + + memcpy(this_urb->transfer_buffer, &msg, sizeof(msg)); + + /* send the data out the device on control endpoint */ + this_urb->transfer_buffer_length = sizeof(msg); + this_urb->dev = serial->dev; + + err = usb_submit_urb(this_urb, GFP_ATOMIC); + if (err != 0) + dbg("%s - usb_submit_urb(setup) failed (%d)", __FUNCTION__, + err); + return (0); +} + static void keyspan_send_setup(struct usb_serial_port *port, int reset_port) { struct usb_serial *serial = port->serial; @@ -2265,6 +2624,9 @@ static void keyspan_send_setup(struct usb_serial_port *port, int reset_port) case msg_usa90: keyspan_usa90_send_setup(serial, port, reset_port); break; + case msg_usa67: + keyspan_usa67_send_setup(serial, port, reset_port); + break; } } @@ -2313,9 +2675,19 @@ static int keyspan_startup (struct usb_serial *serial) keyspan_setup_urbs(serial); - s_priv->instat_urb->dev = serial->dev; - if ((err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL)) != 0) { - dbg("%s - submit instat urb failed %d", __FUNCTION__, err); + if (s_priv->instat_urb != NULL) { + s_priv->instat_urb->dev = serial->dev; + err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL); + if (err != 0) + dbg("%s - submit instat urb failed %d", __FUNCTION__, + err); + } + if (s_priv->indat_urb != NULL) { + s_priv->indat_urb->dev = serial->dev; + err = usb_submit_urb(s_priv->indat_urb, GFP_KERNEL); + if (err != 0) + dbg("%s - submit indat urb failed %d", __FUNCTION__, + err); } return (0); @@ -2335,6 +2707,7 @@ static void keyspan_shutdown (struct usb_serial *serial) /* Stop reading/writing urbs */ stop_urb(s_priv->instat_urb); stop_urb(s_priv->glocont_urb); + stop_urb(s_priv->indat_urb); for (i = 0; i < serial->num_ports; ++i) { port = serial->port[i]; p_priv = usb_get_serial_port_data(port); @@ -2348,6 +2721,7 @@ static void keyspan_shutdown (struct usb_serial *serial) /* Now free them */ usb_free_urb(s_priv->instat_urb); + usb_free_urb(s_priv->indat_urb); usb_free_urb(s_priv->glocont_urb); for (i = 0; i < serial->num_ports; ++i) { port = serial->port[i]; diff --git a/drivers/usb/serial/keyspan.h b/drivers/usb/serial/keyspan.h index c6830cbdc6df..8a0d17401529 100644 --- a/drivers/usb/serial/keyspan.h +++ b/drivers/usb/serial/keyspan.h @@ -99,6 +99,10 @@ static int keyspan_usa90_send_setup (struct usb_serial *serial, struct usb_serial_port *port, int reset_port); +static int keyspan_usa67_send_setup (struct usb_serial *serial, + struct usb_serial_port *port, + int reset_port); + /* Struct used for firmware - increased size of data section to allow Keyspan's 'C' firmware struct to be used unmodified */ struct ezusb_hex_record { @@ -229,15 +233,17 @@ struct ezusb_hex_record { #define keyspan_usa28_product_id 0x010f #define keyspan_usa28x_product_id 0x0110 #define keyspan_usa28xa_product_id 0x0115 +#define keyspan_usa28xb_product_id 0x0110 +#define keyspan_usa28xg_product_id 0x0135 #define keyspan_usa49w_product_id 0x010a #define keyspan_usa49wlc_product_id 0x012a - +#define keyspan_usa49wg_product_id 0x0131 struct keyspan_device_details { /* product ID value */ int product_id; - enum {msg_usa26, msg_usa28, msg_usa49, msg_usa90} msg_format; + enum {msg_usa26, msg_usa28, msg_usa49, msg_usa90, msg_usa67} msg_format; /* Number of physical ports */ int num_ports; @@ -264,6 +270,9 @@ struct keyspan_device_details { /* Endpoint used for input status */ int instat_endpoint; + /* Endpoint used for input data 49WG only */ + int indat_endpoint; + /* Endpoint used for global control functions */ int glocont_endpoint; @@ -287,6 +296,7 @@ static const struct keyspan_device_details usa18x_device_details = { .inack_endpoints = {0x85}, .outcont_endpoints = {0x05}, .instat_endpoint = 0x87, + .indat_endpoint = -1, .glocont_endpoint = 0x07, .calculate_baud_rate = keyspan_usa19w_calc_baud, .baudclk = KEYSPAN_USA18X_BAUDCLK, @@ -303,6 +313,7 @@ static const struct keyspan_device_details usa19_device_details = { .inack_endpoints = {0x83}, .outcont_endpoints = {0x03}, .instat_endpoint = 0x84, + .indat_endpoint = -1, .glocont_endpoint = -1, .calculate_baud_rate = keyspan_usa19_calc_baud, .baudclk = KEYSPAN_USA19_BAUDCLK, @@ -319,6 +330,7 @@ static const struct keyspan_device_details usa19qi_device_details = { .inack_endpoints = {0x83}, .outcont_endpoints = {0x03}, .instat_endpoint = 0x84, + .indat_endpoint = -1, .glocont_endpoint = -1, .calculate_baud_rate = keyspan_usa28_calc_baud, .baudclk = KEYSPAN_USA19_BAUDCLK, @@ -335,6 +347,7 @@ static const struct keyspan_device_details mpr_device_details = { .inack_endpoints = {0x83}, .outcont_endpoints = {0x03}, .instat_endpoint = 0x84, + .indat_endpoint = -1, .glocont_endpoint = -1, .calculate_baud_rate = keyspan_usa28_calc_baud, .baudclk = KEYSPAN_USA19_BAUDCLK, @@ -351,6 +364,7 @@ static const struct keyspan_device_details usa19qw_device_details = { .inack_endpoints = {0x85}, .outcont_endpoints = {0x05}, .instat_endpoint = 0x87, + .indat_endpoint = -1, .glocont_endpoint = 0x07, .calculate_baud_rate = keyspan_usa19w_calc_baud, .baudclk = KEYSPAN_USA19W_BAUDCLK, @@ -367,6 +381,7 @@ static const struct keyspan_device_details usa19w_device_details = { .inack_endpoints = {0x85}, .outcont_endpoints = {0x05}, .instat_endpoint = 0x87, + .indat_endpoint = -1, .glocont_endpoint = 0x07, .calculate_baud_rate = keyspan_usa19w_calc_baud, .baudclk = KEYSPAN_USA19W_BAUDCLK, @@ -383,6 +398,7 @@ static const struct keyspan_device_details usa19hs_device_details = { .inack_endpoints = {-1}, .outcont_endpoints = {0x02}, .instat_endpoint = 0x82, + .indat_endpoint = -1, .glocont_endpoint = -1, .calculate_baud_rate = keyspan_usa19hs_calc_baud, .baudclk = KEYSPAN_USA19HS_BAUDCLK, @@ -399,6 +415,7 @@ static const struct keyspan_device_details usa28_device_details = { .inack_endpoints = {0x85, 0x86}, .outcont_endpoints = {0x05, 0x06}, .instat_endpoint = 0x87, + .indat_endpoint = -1, .glocont_endpoint = 0x07, .calculate_baud_rate = keyspan_usa28_calc_baud, .baudclk = KEYSPAN_USA28_BAUDCLK, @@ -415,6 +432,7 @@ static const struct keyspan_device_details usa28x_device_details = { .inack_endpoints = {0x85, 0x86}, .outcont_endpoints = {0x05, 0x06}, .instat_endpoint = 0x87, + .indat_endpoint = -1, .glocont_endpoint = 0x07, .calculate_baud_rate = keyspan_usa19w_calc_baud, .baudclk = KEYSPAN_USA28X_BAUDCLK, @@ -431,11 +449,28 @@ static const struct keyspan_device_details usa28xa_device_details = { .inack_endpoints = {0x85, 0x86}, .outcont_endpoints = {0x05, 0x06}, .instat_endpoint = 0x87, + .indat_endpoint = -1, .glocont_endpoint = 0x07, .calculate_baud_rate = keyspan_usa19w_calc_baud, .baudclk = KEYSPAN_USA28X_BAUDCLK, }; +static const struct keyspan_device_details usa28xg_device_details = { + .product_id = keyspan_usa28xg_product_id, + .msg_format = msg_usa67, + .num_ports = 2, + .indat_endp_flip = 0, + .outdat_endp_flip = 0, + .indat_endpoints = {0x84, 0x88}, + .outdat_endpoints = {0x02, 0x06}, + .inack_endpoints = {-1, -1}, + .outcont_endpoints = {-1, -1}, + .instat_endpoint = 0x81, + .indat_endpoint = -1, + .glocont_endpoint = 0x01, + .calculate_baud_rate = keyspan_usa19w_calc_baud, + .baudclk = KEYSPAN_USA28X_BAUDCLK, +}; /* We don't need a separate entry for the usa28xb as it appears as a 28x anyway */ static const struct keyspan_device_details usa49w_device_details = { @@ -449,6 +484,7 @@ static const struct keyspan_device_details usa49w_device_details = { .inack_endpoints = {-1, -1, -1, -1}, .outcont_endpoints = {-1, -1, -1, -1}, .instat_endpoint = 0x87, + .indat_endpoint = -1, .glocont_endpoint = 0x07, .calculate_baud_rate = keyspan_usa19w_calc_baud, .baudclk = KEYSPAN_USA49W_BAUDCLK, @@ -465,11 +501,29 @@ static const struct keyspan_device_details usa49wlc_device_details = { .inack_endpoints = {-1, -1, -1, -1}, .outcont_endpoints = {-1, -1, -1, -1}, .instat_endpoint = 0x87, + .indat_endpoint = -1, .glocont_endpoint = 0x07, .calculate_baud_rate = keyspan_usa19w_calc_baud, .baudclk = KEYSPAN_USA19W_BAUDCLK, }; +static const struct keyspan_device_details usa49wg_device_details = { + .product_id = keyspan_usa49wg_product_id, + .msg_format = msg_usa49, + .num_ports = 4, + .indat_endp_flip = 0, + .outdat_endp_flip = 0, + .indat_endpoints = {-1, -1, -1, -1}, /* single 'global' data in EP */ + .outdat_endpoints = {0x01, 0x02, 0x04, 0x06}, + .inack_endpoints = {-1, -1, -1, -1}, + .outcont_endpoints = {-1, -1, -1, -1}, + .instat_endpoint = 0x81, + .indat_endpoint = 0x88, + .glocont_endpoint = 0x00, /* uses control EP */ + .calculate_baud_rate = keyspan_usa19w_calc_baud, + .baudclk = KEYSPAN_USA19W_BAUDCLK, +}; + static const struct keyspan_device_details *keyspan_devices[] = { &usa18x_device_details, &usa19_device_details, @@ -481,9 +535,11 @@ static const struct keyspan_device_details *keyspan_devices[] = { &usa28_device_details, &usa28x_device_details, &usa28xa_device_details, + &usa28xg_device_details, /* 28xb not required as it renumerates as a 28x */ &usa49w_device_details, &usa49wlc_device_details, + &usa49wg_device_details, NULL, }; @@ -510,8 +566,11 @@ static struct usb_device_id keyspan_ids_combined[] = { { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_product_id) }, { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_product_id) }, { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_product_id) }, + { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xb_product_id) }, + { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xg_product_id) }, { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_product_id)}, { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_product_id)}, + { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wg_product_id)}, { } /* Terminating entry */ }; @@ -557,12 +616,15 @@ static struct usb_device_id keyspan_2port_ids[] = { { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_product_id) }, { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_product_id) }, { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_product_id) }, + { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xb_product_id) }, + { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xg_product_id) }, { } /* Terminating entry */ }; static struct usb_device_id keyspan_4port_ids[] = { { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_product_id) }, { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_product_id)}, + { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wg_product_id)}, { } /* Terminating entry */ }; @@ -573,7 +635,6 @@ static struct usb_serial_driver keyspan_pre_device = { .name = "keyspan_no_firm", }, .description = "Keyspan - (without firmware)", - .usb_driver = &keyspan_driver, .id_table = keyspan_pre_ids, .num_interrupt_in = NUM_DONT_CARE, .num_bulk_in = NUM_DONT_CARE, @@ -588,7 +649,6 @@ static struct usb_serial_driver keyspan_1port_device = { .name = "keyspan_1", }, .description = "Keyspan 1 port adapter", - .usb_driver = &keyspan_driver, .id_table = keyspan_1port_ids, .num_interrupt_in = NUM_DONT_CARE, .num_bulk_in = NUM_DONT_CARE, @@ -616,7 +676,6 @@ static struct usb_serial_driver keyspan_2port_device = { .name = "keyspan_2", }, .description = "Keyspan 2 port adapter", - .usb_driver = &keyspan_driver, .id_table = keyspan_2port_ids, .num_interrupt_in = NUM_DONT_CARE, .num_bulk_in = NUM_DONT_CARE, @@ -644,11 +703,10 @@ static struct usb_serial_driver keyspan_4port_device = { .name = "keyspan_4", }, .description = "Keyspan 4 port adapter", - .usb_driver = &keyspan_driver, .id_table = keyspan_4port_ids, .num_interrupt_in = NUM_DONT_CARE, - .num_bulk_in = 5, - .num_bulk_out = 5, + .num_bulk_in = NUM_DONT_CARE, + .num_bulk_out = NUM_DONT_CARE, .num_ports = 4, .open = keyspan_open, .close = keyspan_close, diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c index dd0b66a6ed5d..be9ac20a8f10 100644 --- a/drivers/usb/serial/keyspan_pda.c +++ b/drivers/usb/serial/keyspan_pda.c @@ -218,11 +218,12 @@ static void keyspan_pda_rx_interrupt (struct urb *urb) struct tty_struct *tty = port->tty; unsigned char *data = urb->transfer_buffer; int i; - int status; + int retval; + int status = urb->status; struct keyspan_pda_private *priv; priv = usb_get_serial_port_data(port); - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -230,10 +231,12 @@ static void keyspan_pda_rx_interrupt (struct urb *urb) case -ENOENT: case -ESHUTDOWN: /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); + dbg("%s - urb shutting down with status: %d", + __FUNCTION__, status); return; default: - dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); + dbg("%s - nonzero urb status received: %d", + __FUNCTION__, status); goto exit; } @@ -268,10 +271,10 @@ static void keyspan_pda_rx_interrupt (struct urb *urb) } exit: - status = usb_submit_urb (urb, GFP_ATOMIC); - if (status) + retval = usb_submit_urb (urb, GFP_ATOMIC); + if (retval) err ("%s - usb_submit_urb failed with result %d", - __FUNCTION__, status); + __FUNCTION__, retval); } diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c index 7b085f334ceb..5a4127e62c4a 100644 --- a/drivers/usb/serial/kl5kusb105.c +++ b/drivers/usb/serial/kl5kusb105.c @@ -567,12 +567,13 @@ exit: static void klsi_105_write_bulk_callback ( struct urb *urb) { struct usb_serial_port *port = (struct usb_serial_port *)urb->context; + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); - - if (urb->status) { + + if (status) { dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, - urb->status); + status); return; } @@ -631,16 +632,17 @@ static void klsi_105_read_bulk_callback (struct urb *urb) struct tty_struct *tty; unsigned char *data = urb->transfer_buffer; int rc; + int status = urb->status; - dbg("%s - port %d", __FUNCTION__, port->number); + dbg("%s - port %d", __FUNCTION__, port->number); /* The urb might have been killed. */ - if (urb->status) { - dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, - urb->status); - return; - } - + if (status) { + dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, + status); + return; + } + /* The data received is again preceded by a length double-byte in LSB- * first order (see klsi_105_write() ) */ diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c index 0683b51f0932..02a86dbc0e97 100644 --- a/drivers/usb/serial/kobil_sct.c +++ b/drivers/usb/serial/kobil_sct.c @@ -358,24 +358,26 @@ static void kobil_close (struct usb_serial_port *port, struct file *filp) } -static void kobil_read_int_callback( struct urb *purb) +static void kobil_read_int_callback(struct urb *urb) { int result; - struct usb_serial_port *port = (struct usb_serial_port *) purb->context; + struct usb_serial_port *port = urb->context; struct tty_struct *tty; - unsigned char *data = purb->transfer_buffer; + unsigned char *data = urb->transfer_buffer; + int status = urb->status; // char *dbg_data; dbg("%s - port %d", __FUNCTION__, port->number); - if (purb->status) { - dbg("%s - port %d Read int status not zero: %d", __FUNCTION__, port->number, purb->status); + if (status) { + dbg("%s - port %d Read int status not zero: %d", + __FUNCTION__, port->number, status); return; } - - tty = port->tty; - if (purb->actual_length) { - + + tty = port->tty; + if (urb->actual_length) { + // BEGIN DEBUG /* dbg_data = kzalloc((3 * purb->actual_length + 10) * sizeof(char), GFP_KERNEL); @@ -390,15 +392,15 @@ static void kobil_read_int_callback( struct urb *purb) */ // END DEBUG - tty_buffer_request_room(tty, purb->actual_length); - tty_insert_flip_string(tty, data, purb->actual_length); + tty_buffer_request_room(tty, urb->actual_length); + tty_insert_flip_string(tty, data, urb->actual_length); tty_flip_buffer_push(tty); } // someone sets the dev to 0 if the close method has been called port->interrupt_in_urb->dev = port->serial->dev; - result = usb_submit_urb( port->interrupt_in_urb, GFP_ATOMIC ); + result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result); } diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c index 3db1adc25f84..e08c9bb403d8 100644 --- a/drivers/usb/serial/mct_u232.c +++ b/drivers/usb/serial/mct_u232.c @@ -81,7 +81,7 @@ /* * Version Information */ -#define DRIVER_VERSION "z2.0" /* Linux in-kernel version */ +#define DRIVER_VERSION "z2.1" /* Linux in-kernel version */ #define DRIVER_AUTHOR "Wolfgang Grandegger <wolfgang@ces.ch>" #define DRIVER_DESC "Magic Control Technology USB-RS232 converter driver" @@ -110,6 +110,10 @@ static int mct_u232_tiocmget (struct usb_serial_port *port, static int mct_u232_tiocmset (struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear); +static void mct_u232_throttle (struct usb_serial_port *port); +static void mct_u232_unthrottle (struct usb_serial_port *port); + + /* * All of the device info needed for the MCT USB-RS232 converter. */ @@ -145,6 +149,8 @@ static struct usb_serial_driver mct_u232_device = { .num_ports = 1, .open = mct_u232_open, .close = mct_u232_close, + .throttle = mct_u232_throttle, + .unthrottle = mct_u232_unthrottle, .read_int_callback = mct_u232_read_int_callback, .ioctl = mct_u232_ioctl, .set_termios = mct_u232_set_termios, @@ -162,8 +168,11 @@ struct mct_u232_private { unsigned char last_lcr; /* Line Control Register */ unsigned char last_lsr; /* Line Status Register */ unsigned char last_msr; /* Modem Status Register */ + unsigned int rx_flags; /* Throttling flags */ }; +#define THROTTLED 0x01 + /* * Handle vendor specific USB requests */ @@ -175,21 +184,21 @@ struct mct_u232_private { * we do not know how to support. We ignore them for the moment. * XXX Rate-limit the error message, it's user triggerable. */ -static int mct_u232_calculate_baud_rate(struct usb_serial *serial, int value) +static int mct_u232_calculate_baud_rate(struct usb_serial *serial, speed_t value) { if (le16_to_cpu(serial->dev->descriptor.idProduct) == MCT_U232_SITECOM_PID || le16_to_cpu(serial->dev->descriptor.idProduct) == MCT_U232_BELKIN_F5U109_PID) { switch (value) { - case B300: return 0x01; - case B600: return 0x02; /* this one not tested */ - case B1200: return 0x03; - case B2400: return 0x04; - case B4800: return 0x06; - case B9600: return 0x08; - case B19200: return 0x09; - case B38400: return 0x0a; - case B57600: return 0x0b; - case B115200: return 0x0c; + case 300: return 0x01; + case 600: return 0x02; /* this one not tested */ + case 1200: return 0x03; + case 2400: return 0x04; + case 4800: return 0x06; + case 9600: return 0x08; + case 19200: return 0x09; + case 38400: return 0x0a; + case 57600: return 0x0b; + case 115200: return 0x0c; default: err("MCT USB-RS232: unsupported baudrate request 0x%x," " using default of B9600", value); @@ -197,30 +206,32 @@ static int mct_u232_calculate_baud_rate(struct usb_serial *serial, int value) } } else { switch (value) { - case B300: value = 300; break; - case B600: value = 600; break; - case B1200: value = 1200; break; - case B2400: value = 2400; break; - case B4800: value = 4800; break; - case B9600: value = 9600; break; - case B19200: value = 19200; break; - case B38400: value = 38400; break; - case B57600: value = 57600; break; - case B115200: value = 115200; break; - default: - err("MCT USB-RS232: unsupported baudrate request 0x%x," - " using default of B9600", value); - value = 9600; + case 300: break; + case 600: break; + case 1200: break; + case 2400: break; + case 4800: break; + case 9600: break; + case 19200: break; + case 38400: break; + case 57600: break; + case 115200: break; + default: + err("MCT USB-RS232: unsupported baudrate request 0x%x," + " using default of B9600", value); + value = 9600; } return 115200/value; } } -static int mct_u232_set_baud_rate(struct usb_serial *serial, int value) +static int mct_u232_set_baud_rate(struct usb_serial *serial, struct usb_serial_port *port, + speed_t value) { __le32 divisor; int rc; unsigned char zero_byte = 0; + unsigned char cts_enable_byte = 0; divisor = cpu_to_le32(mct_u232_calculate_baud_rate(serial, value)); @@ -238,10 +249,17 @@ static int mct_u232_set_baud_rate(struct usb_serial *serial, int value) 'baud rate change' message. The actual functionality of the request codes in these messages is not fully understood but these particular codes are never seen in any operation besides a baud - rate change. Both of these messages send a single byte of data - whose value is always zero. The second of these two extra messages - is required in order for data to be properly written to an RS-232 - device which does not assert the 'CTS' signal. */ + rate change. Both of these messages send a single byte of data. + In the first message, the value of this byte is always zero. + + The second message has been determined experimentally to control + whether data will be transmitted to a device which is not asserting + the 'CTS' signal. If the second message's data byte is zero, data + will be transmitted even if 'CTS' is not asserted (i.e. no hardware + flow control). if the second message's data byte is nonzero (a value + of 1 is used by this driver), data will not be transmitted to a device + which is not asserting 'CTS'. + */ rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), MCT_U232_SET_UNKNOWN1_REQUEST, @@ -252,14 +270,19 @@ static int mct_u232_set_baud_rate(struct usb_serial *serial, int value) err("Sending USB device request code %d failed (error = %d)", MCT_U232_SET_UNKNOWN1_REQUEST, rc); + if (port && C_CRTSCTS(port->tty)) { + cts_enable_byte = 1; + } + + dbg("set_baud_rate: send second control message, data = %02X", cts_enable_byte); rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), - MCT_U232_SET_UNKNOWN2_REQUEST, + MCT_U232_SET_CTS_REQUEST, MCT_U232_SET_REQUEST_TYPE, - 0, 0, &zero_byte, MCT_U232_SET_UNKNOWN2_SIZE, + 0, 0, &cts_enable_byte, MCT_U232_SET_CTS_SIZE, WDR_TIMEOUT); if (rc < 0) - err("Sending USB device request code %d failed (error = %d)", - MCT_U232_SET_UNKNOWN2_REQUEST, rc); + err("Sending USB device request code %d failed (error = %d)", + MCT_U232_SET_CTS_REQUEST, rc); return rc; } /* mct_u232_set_baud_rate */ @@ -458,8 +481,25 @@ error: static void mct_u232_close (struct usb_serial_port *port, struct file *filp) { + unsigned int c_cflag; + unsigned long flags; + unsigned int control_state; + struct mct_u232_private *priv = usb_get_serial_port_data(port); dbg("%s port %d", __FUNCTION__, port->number); + if (port->tty) { + c_cflag = port->tty->termios->c_cflag; + if (c_cflag & HUPCL) { + /* drop DTR and RTS */ + spin_lock_irqsave(&priv->lock, flags); + priv->control_state &= ~(TIOCM_DTR | TIOCM_RTS); + control_state = priv->control_state; + spin_unlock_irqrestore(&priv->lock, flags); + mct_u232_set_modem_ctrl(port->serial, control_state); + } + } + + if (port->serial->dev) { /* shutdown our urbs */ usb_kill_urb(port->write_urb); @@ -476,10 +516,11 @@ static void mct_u232_read_int_callback (struct urb *urb) struct usb_serial *serial = port->serial; struct tty_struct *tty; unsigned char *data = urb->transfer_buffer; - int status; + int retval; + int status = urb->status; unsigned long flags; - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -487,10 +528,12 @@ static void mct_u232_read_int_callback (struct urb *urb) case -ENOENT: case -ESHUTDOWN: /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); + dbg("%s - urb shutting down with status: %d", + __FUNCTION__, status); return; default: - dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); + dbg("%s - nonzero urb status received: %d", + __FUNCTION__, status); goto exit; } @@ -554,10 +597,10 @@ static void mct_u232_read_int_callback (struct urb *urb) #endif spin_unlock_irqrestore(&priv->lock, flags); exit: - status = usb_submit_urb (urb, GFP_ATOMIC); - if (status) + retval = usb_submit_urb (urb, GFP_ATOMIC); + if (retval) err ("%s - usb_submit_urb failed with result %d", - __FUNCTION__, status); + __FUNCTION__, retval); } /* mct_u232_read_int_callback */ static void mct_u232_set_termios (struct usb_serial_port *port, @@ -565,11 +608,10 @@ static void mct_u232_set_termios (struct usb_serial_port *port, { struct usb_serial *serial = port->serial; struct mct_u232_private *priv = usb_get_serial_port_data(port); - unsigned int iflag = port->tty->termios->c_iflag; unsigned int cflag = port->tty->termios->c_cflag; unsigned int old_cflag = old_termios->c_cflag; unsigned long flags; - unsigned int control_state, new_state; + unsigned int control_state; unsigned char last_lcr; /* get a local copy of the current port settings */ @@ -585,18 +627,14 @@ static void mct_u232_set_termios (struct usb_serial_port *port, * Premature optimization is the root of all evil. */ - /* reassert DTR and (maybe) RTS on transition from B0 */ + /* reassert DTR and RTS on transition from B0 */ if ((old_cflag & CBAUD) == B0) { dbg("%s: baud was B0", __FUNCTION__); - control_state |= TIOCM_DTR; - /* don't set RTS if using hardware flow control */ - if (!(old_cflag & CRTSCTS)) { - control_state |= TIOCM_RTS; - } + control_state |= TIOCM_DTR | TIOCM_RTS; mct_u232_set_modem_ctrl(serial, control_state); } - mct_u232_set_baud_rate(serial, cflag & CBAUD); + mct_u232_set_baud_rate(serial, port, tty_get_baud_rate(port->tty)); if ((cflag & CBAUD) == B0 ) { dbg("%s: baud is B0", __FUNCTION__); @@ -638,21 +676,6 @@ static void mct_u232_set_termios (struct usb_serial_port *port, mct_u232_set_line_ctrl(serial, last_lcr); - /* - * Set flow control: well, I do not really now how to handle DTR/RTS. - * Just do what we have seen with SniffUSB on Win98. - */ - /* Drop DTR/RTS if no flow control otherwise assert */ - new_state = control_state; - if ((iflag & IXOFF) || (iflag & IXON) || (cflag & CRTSCTS)) - new_state |= TIOCM_DTR | TIOCM_RTS; - else - new_state &= ~(TIOCM_DTR | TIOCM_RTS); - if (new_state != control_state) { - mct_u232_set_modem_ctrl(serial, new_state); - control_state = new_state; - } - /* save off the modified port settings */ spin_lock_irqsave(&priv->lock, flags); priv->control_state = control_state; @@ -747,6 +770,50 @@ static int mct_u232_ioctl (struct usb_serial_port *port, struct file * file, return 0; } /* mct_u232_ioctl */ +static void mct_u232_throttle (struct usb_serial_port *port) +{ + struct mct_u232_private *priv = usb_get_serial_port_data(port); + unsigned long flags; + unsigned int control_state; + struct tty_struct *tty; + + tty = port->tty; + dbg("%s - port %d", __FUNCTION__, port->number); + + spin_lock_irqsave(&priv->lock, flags); + priv->rx_flags |= THROTTLED; + if (C_CRTSCTS(tty)) { + priv->control_state &= ~TIOCM_RTS; + control_state = priv->control_state; + spin_unlock_irqrestore(&priv->lock, flags); + (void) mct_u232_set_modem_ctrl(port->serial, control_state); + } else { + spin_unlock_irqrestore(&priv->lock, flags); + } +} + + +static void mct_u232_unthrottle (struct usb_serial_port *port) +{ + struct mct_u232_private *priv = usb_get_serial_port_data(port); + unsigned long flags; + unsigned int control_state; + struct tty_struct *tty; + + dbg("%s - port %d", __FUNCTION__, port->number); + + tty = port->tty; + spin_lock_irqsave(&priv->lock, flags); + if ((priv->rx_flags & THROTTLED) && C_CRTSCTS(tty)) { + priv->rx_flags &= ~THROTTLED; + priv->control_state |= TIOCM_RTS; + control_state = priv->control_state; + spin_unlock_irqrestore(&priv->lock, flags); + (void) mct_u232_set_modem_ctrl(port->serial, control_state); + } else { + spin_unlock_irqrestore(&priv->lock, flags); + } +} static int __init mct_u232_init (void) { diff --git a/drivers/usb/serial/mct_u232.h b/drivers/usb/serial/mct_u232.h index 73dd0d984cd3..aae10c8174d6 100644 --- a/drivers/usb/serial/mct_u232.h +++ b/drivers/usb/serial/mct_u232.h @@ -63,14 +63,15 @@ #define MCT_U232_SET_UNKNOWN1_REQUEST 11 /* Unknown functionality */ #define MCT_U232_SET_UNKNOWN1_SIZE 1 -/* This USB device request code is not well understood. It is transmitted by - the MCT-supplied Windows driver whenever the baud rate changes. +/* This USB device request code appears to control whether CTS is required + during transmission. - Without this USB device request, the USB/RS-232 adapter will not write to - RS-232 devices which do not assert the 'CTS' signal. + Sending a zero byte allows data transmission to a device which is not + asserting CTS. Sending a '1' byte will cause transmission to be deferred + until the device asserts CTS. */ -#define MCT_U232_SET_UNKNOWN2_REQUEST 12 /* Unknown functionality */ -#define MCT_U232_SET_UNKNOWN2_SIZE 1 +#define MCT_U232_SET_CTS_REQUEST 12 +#define MCT_U232_SET_CTS_SIZE 1 /* * Baud rate (divisor) @@ -78,7 +79,7 @@ * and "Intel solution". They are the regular MCT and "Sitecom" for us. * This is pointless to document in the header, see the code for the bits. */ -static int mct_u232_calculate_baud_rate(struct usb_serial *serial, int value); +static int mct_u232_calculate_baud_rate(struct usb_serial *serial, speed_t value); /* * Line Control Register (LCR) @@ -439,7 +440,7 @@ static int mct_u232_calculate_baud_rate(struct usb_serial *serial, int value); * which says "U232-P9" ;-) * * The circuit board inside the adaptor contains a Philips PDIUSBD12 - * USB endpoint chip and a Phillips P87C52UBAA microcontroller with + * USB endpoint chip and a Philips P87C52UBAA microcontroller with * embedded UART. Exhaustive documentation for these is available at: * * http://www.semiconductors.philips.com/pip/p87c52ubaa diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index b563e2ad8728..01e811becec4 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -9,9 +9,9 @@ * the Free Software Foundation, version 2 of the License. * * Developed by: - * VijayaKumar.G.N. <vijaykumar@aspirecom.net> - * AjayKumar <ajay@aspirecom.net> - * Gurudeva.N. <gurudev@aspirecom.net> + * Vijaya Kumar <vijaykumar.gn@gmail.com> + * Ajay Kumar <naanuajay@yahoo.com> + * Gurudeva <ngurudeva@yahoo.com> * * Cleaned up from the original by: * Greg Kroah-Hartman <gregkh@suse.de> @@ -103,18 +103,14 @@ static void mos7720_interrupt_callback(struct urb *urb) { int result; int length; + int status = urb->status; __u8 *data; __u8 sp1; __u8 sp2; dbg("%s"," : Entering\n"); - if (!urb) { - dbg("%s","Invalid Pointer !!!!:\n"); - return; - } - - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -123,11 +119,11 @@ static void mos7720_interrupt_callback(struct urb *urb) case -ESHUTDOWN: /* this urb is terminated, clean up */ dbg("%s - urb shutting down with status: %d", __FUNCTION__, - urb->status); + status); return; default: dbg("%s - nonzero urb status received: %d", __FUNCTION__, - urb->status); + status); goto exit; } @@ -198,14 +194,15 @@ exit: */ static void mos7720_bulk_in_callback(struct urb *urb) { - int status; + int retval; unsigned char *data ; struct usb_serial_port *port; struct moschip_port *mos7720_port; struct tty_struct *tty; + int status = urb->status; - if (urb->status) { - dbg("nonzero read bulk status received: %d",urb->status); + if (status) { + dbg("nonzero read bulk status received: %d", status); return; } @@ -236,10 +233,10 @@ static void mos7720_bulk_in_callback(struct urb *urb) if (port->read_urb->status != -EINPROGRESS) { port->read_urb->dev = port->serial->dev; - status = usb_submit_urb(port->read_urb, GFP_ATOMIC); - if (status) - dbg("usb_submit_urb(read bulk) failed, status = %d", - status); + retval = usb_submit_urb(port->read_urb, GFP_ATOMIC); + if (retval) + dbg("usb_submit_urb(read bulk) failed, retval = %d", + retval); } } @@ -252,9 +249,10 @@ static void mos7720_bulk_out_data_callback(struct urb *urb) { struct moschip_port *mos7720_port; struct tty_struct *tty; + int status = urb->status; - if (urb->status) { - dbg("nonzero write bulk status received:%d", urb->status); + if (status) { + dbg("nonzero write bulk status received:%d", status); return; } @@ -1235,16 +1233,6 @@ static void mos7720_set_termios(struct usb_serial_port *port, return; } - /* check that they really want us to change something */ - if (old_termios) { - if ((cflag == old_termios->c_cflag) && - (RELEVANT_IFLAG(tty->termios->c_iflag) == - RELEVANT_IFLAG(old_termios->c_iflag))) { - dbg("Nothing to change"); - return; - } - } - dbg("%s - clfag %08x iflag %08x", __FUNCTION__, tty->termios->c_cflag, RELEVANT_IFLAG(tty->termios->c_iflag)); diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index 36620c651079..f76480f1455d 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -434,15 +434,11 @@ static void mos7840_control_callback(struct urb *urb) struct moschip_port *mos7840_port; __u8 regval = 0x0; int result = 0; - - if (!urb) { - dbg("%s", "Invalid Pointer !!!!:\n"); - return; - } + int status = urb->status; mos7840_port = (struct moschip_port *)urb->context; - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -451,11 +447,11 @@ static void mos7840_control_callback(struct urb *urb) case -ESHUTDOWN: /* this urb is terminated, clean up */ dbg("%s - urb shutting down with status: %d", __FUNCTION__, - urb->status); + status); return; default: dbg("%s - nonzero urb status received: %d", __FUNCTION__, - urb->status); + status); goto exit; } @@ -521,14 +517,11 @@ static void mos7840_interrupt_callback(struct urb *urb) __u8 sp[5], st; int i, rv = 0; __u16 wval, wreg = 0; + int status = urb->status; dbg("%s", " : Entering\n"); - if (!urb) { - dbg("%s", "Invalid Pointer !!!!:\n"); - return; - } - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -537,11 +530,11 @@ static void mos7840_interrupt_callback(struct urb *urb) case -ESHUTDOWN: /* this urb is terminated, clean up */ dbg("%s - urb shutting down with status: %d", __FUNCTION__, - urb->status); + status); return; default: dbg("%s - nonzero urb status received: %d", __FUNCTION__, - urb->status); + status); goto exit; } @@ -666,20 +659,16 @@ static struct usb_serial *mos7840_get_usb_serial(struct usb_serial_port *port, static void mos7840_bulk_in_callback(struct urb *urb) { - int status; + int retval; unsigned char *data; struct usb_serial *serial; struct usb_serial_port *port; struct moschip_port *mos7840_port; struct tty_struct *tty; + int status = urb->status; - if (!urb) { - dbg("%s", "Invalid Pointer !!!!:\n"); - return; - } - - if (urb->status) { - dbg("nonzero read bulk status received: %d", urb->status); + if (status) { + dbg("nonzero read bulk status received: %d", status); return; } @@ -729,11 +718,11 @@ static void mos7840_bulk_in_callback(struct urb *urb) mos7840_port->read_urb->dev = serial->dev; - status = usb_submit_urb(mos7840_port->read_urb, GFP_ATOMIC); + retval = usb_submit_urb(mos7840_port->read_urb, GFP_ATOMIC); - if (status) { - dbg(" usb_submit_urb(read bulk) failed, status = %d", - status); + if (retval) { + dbg(" usb_submit_urb(read bulk) failed, retval = %d", + retval); } } @@ -747,13 +736,9 @@ static void mos7840_bulk_out_data_callback(struct urb *urb) { struct moschip_port *mos7840_port; struct tty_struct *tty; + int status = urb->status; int i; - if (!urb) { - dbg("%s", "Invalid Pointer !!!!:\n"); - return; - } - mos7840_port = (struct moschip_port *)urb->context; spin_lock(&mos7840_port->pool_lock); for (i = 0; i < NUM_URBS; i++) { @@ -764,8 +749,8 @@ static void mos7840_bulk_out_data_callback(struct urb *urb) } spin_unlock(&mos7840_port->pool_lock); - if (urb->status) { - dbg("nonzero write bulk status received:%d\n", urb->status); + if (status) { + dbg("nonzero write bulk status received:%d\n", status); return; } @@ -2185,16 +2170,6 @@ static void mos7840_set_termios(struct usb_serial_port *port, return; } - /* check that they really want us to change something */ - if (old_termios) { - if ((cflag == old_termios->c_cflag) && - (RELEVANT_IFLAG(tty->termios->c_iflag) == - RELEVANT_IFLAG(old_termios->c_iflag))) { - dbg("%s\n", "Nothing to change"); - return; - } - } - dbg("%s - clfag %08x iflag %08x", __FUNCTION__, tty->termios->c_cflag, RELEVANT_IFLAG(tty->termios->c_iflag)); @@ -2254,30 +2229,6 @@ static int mos7840_get_lsr_info(struct moschip_port *mos7840_port, } /***************************************************************************** - * mos7840_get_bytes_avail - get number of bytes available - * - * Purpose: Let user call ioctl to get the count of number of bytes available. - *****************************************************************************/ - -static int mos7840_get_bytes_avail(struct moschip_port *mos7840_port, - unsigned int __user *value) -{ - unsigned int result = 0; - struct tty_struct *tty = mos7840_port->port->tty; - - if (!tty) - return -ENOIOCTLCMD; - - result = tty->read_cnt; - - dbg("%s(%d) = %d", __FUNCTION__, mos7840_port->port->number, result); - if (copy_to_user(value, &result, sizeof(int))) - return -EFAULT; - - return -ENOIOCTLCMD; -} - -/***************************************************************************** * mos7840_set_modem_info * function to set modem info *****************************************************************************/ @@ -2425,8 +2376,6 @@ static int mos7840_ioctl(struct usb_serial_port *port, struct file *file, struct async_icount cprev; struct serial_icounter_struct icount; int mosret = 0; - int retval; - struct tty_ldisc *ld; if (mos7840_port_paranoia_check(port, __FUNCTION__)) { dbg("%s", "Invalid port \n"); @@ -2445,42 +2394,6 @@ static int mos7840_ioctl(struct usb_serial_port *port, struct file *file, switch (cmd) { /* return number of bytes available */ - case TIOCINQ: - dbg("%s (%d) TIOCINQ", __FUNCTION__, port->number); - return mos7840_get_bytes_avail(mos7840_port, argp); - - case TIOCOUTQ: - dbg("%s (%d) TIOCOUTQ", __FUNCTION__, port->number); - return put_user(tty->driver->chars_in_buffer ? - tty->driver->chars_in_buffer(tty) : 0, - (int __user *)arg); - - case TCFLSH: - retval = tty_check_change(tty); - if (retval) - return retval; - - ld = tty_ldisc_ref(tty); - switch (arg) { - case TCIFLUSH: - if (ld && ld->flush_buffer) - ld->flush_buffer(tty); - break; - case TCIOFLUSH: - if (ld && ld->flush_buffer) - ld->flush_buffer(tty); - /* fall through */ - case TCOFLUSH: - if (tty->driver->flush_buffer) - tty->driver->flush_buffer(tty); - break; - default: - tty_ldisc_deref(ld); - return -EINVAL; - } - tty_ldisc_deref(ld); - return 0; - case TIOCSERGETLSR: dbg("%s (%d) TIOCSERGETLSR", __FUNCTION__, port->number); return mos7840_get_lsr_info(mos7840_port, argp); diff --git a/drivers/usb/serial/navman.c b/drivers/usb/serial/navman.c index 90701111d746..7f337c9aeb5f 100644 --- a/drivers/usb/serial/navman.c +++ b/drivers/usb/serial/navman.c @@ -37,9 +37,10 @@ static void navman_read_int_callback(struct urb *urb) struct usb_serial_port *port = urb->context; unsigned char *data = urb->transfer_buffer; struct tty_struct *tty; + int status = urb->status; int result; - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -48,11 +49,11 @@ static void navman_read_int_callback(struct urb *urb) case -ESHUTDOWN: /* this urb is terminated, clean up */ dbg("%s - urb shutting down with status: %d", - __FUNCTION__, urb->status); + __FUNCTION__, status); return; default: dbg("%s - nonzero urb status received: %d", - __FUNCTION__, urb->status); + __FUNCTION__, status); goto exit; } diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c index 00afc1712c39..ee94d9616d82 100644 --- a/drivers/usb/serial/omninet.c +++ b/drivers/usb/serial/omninet.c @@ -1,10 +1,9 @@ /* * USB ZyXEL omni.net LCD PLUS driver * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. * * See Documentation/usb/usb-serial.txt for more information on using this driver * @@ -201,14 +200,15 @@ static void omninet_read_bulk_callback (struct urb *urb) struct usb_serial_port *port = (struct usb_serial_port *)urb->context; unsigned char *data = urb->transfer_buffer; struct omninet_header *header = (struct omninet_header *) &data[0]; - + int status = urb->status; int i; int result; dbg("%s - port %d", __FUNCTION__, port->number); - if (urb->status) { - dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero read bulk status received: %d", + __FUNCTION__, status); return; } @@ -312,12 +312,14 @@ static void omninet_write_bulk_callback (struct urb *urb) { /* struct omninet_header *header = (struct omninet_header *) urb->transfer_buffer; */ struct usb_serial_port *port = (struct usb_serial_port *) urb->context; + int status = urb->status; dbg("%s - port %0x\n", __FUNCTION__, port->number); port->write_urb_busy = 0; - if (urb->status) { - dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero write bulk status received: %d", + __FUNCTION__, status); return; } diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 5d3999e3ff61..a18659e0700c 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -38,6 +38,7 @@ #include <linux/tty.h> #include <linux/tty_flip.h> #include <linux/module.h> +#include <linux/bitops.h> #include <linux/usb.h> #include <linux/usb/serial.h> @@ -107,8 +108,10 @@ static int option_send_setup(struct usb_serial_port *port); #define HUAWEI_VENDOR_ID 0x12D1 #define HUAWEI_PRODUCT_E600 0x1001 #define HUAWEI_PRODUCT_E220 0x1003 +#define HUAWEI_PRODUCT_E220BIS 0x1004 #define NOVATELWIRELESS_VENDOR_ID 0x1410 +#define DELL_VENDOR_ID 0x413C #define ANYDATA_VENDOR_ID 0x16d5 #define ANYDATA_PRODUCT_ADU_E100A 0x6501 @@ -118,8 +121,6 @@ static int option_send_setup(struct usb_serial_port *port); #define BANDRICH_PRODUCT_C100_1 0x1002 #define BANDRICH_PRODUCT_C100_2 0x1003 -#define DELL_VENDOR_ID 0x413C - static struct usb_device_id option_ids[] = { { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) }, @@ -158,6 +159,7 @@ static struct usb_device_id option_ids[] = { { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_NETWORK) }, { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600) }, { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220) }, + { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1100) }, /* Novatel Merlin XS620/S640 */ { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1110) }, /* Novatel Merlin S620 */ { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1120) }, /* Novatel Merlin EX720 */ @@ -170,11 +172,17 @@ static struct usb_device_id option_ids[] = { { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2110) }, /* Novatel Merlin ES620 / Merlin ES720 / Ovation U720 */ { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2130) }, /* Novatel Merlin ES620 SM Bus */ { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2410) }, /* Novatel EU740 */ + { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */ + { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */ + { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */ + { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */ + { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */ + { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */ + { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */ { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) }, { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) }, { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) }, { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) }, - { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard */ { } /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, option_ids); @@ -240,6 +248,7 @@ struct option_port_private { /* Output endpoints and buffer for this port */ struct urb *out_urbs[N_OUT_URB]; char out_buffer[N_OUT_URB][OUT_BUFLEN]; + unsigned long out_busy; /* Bit vector of URBs in use */ /* Settings for the port */ int rts_state; /* Handshaking pins (outputs) */ @@ -370,7 +379,7 @@ static int option_write(struct usb_serial_port *port, todo = OUT_BUFLEN; this_urb = portdata->out_urbs[i]; - if (this_urb->status == -EINPROGRESS) { + if (test_and_set_bit(i, &portdata->out_busy)) { if (time_before(jiffies, portdata->tx_start_time[i] + 10 * HZ)) continue; @@ -394,6 +403,7 @@ static int option_write(struct usb_serial_port *port, dbg("usb_submit_urb %p (write bulk) failed " "(%d, has %d)", this_urb, err, this_urb->status); + clear_bit(i, &portdata->out_busy); continue; } portdata->tx_start_time[i] = jiffies; @@ -413,15 +423,16 @@ static void option_indat_callback(struct urb *urb) struct usb_serial_port *port; struct tty_struct *tty; unsigned char *data = urb->transfer_buffer; + int status = urb->status; dbg("%s: %p", __FUNCTION__, urb); endpoint = usb_pipeendpoint(urb->pipe); port = (struct usb_serial_port *) urb->context; - if (urb->status) { + if (status) { dbg("%s: nonzero status: %d on endpoint %02x.", - __FUNCTION__, urb->status, endpoint); + __FUNCTION__, status, endpoint); } else { tty = port->tty; if (urb->actual_length) { @@ -433,7 +444,7 @@ static void option_indat_callback(struct urb *urb) } /* Resubmit urb so we continue receiving */ - if (port->open_count && urb->status != -ESHUTDOWN) { + if (port->open_count && status != -ESHUTDOWN) { err = usb_submit_urb(urb, GFP_ATOMIC); if (err) printk(KERN_ERR "%s: resubmit read urb failed. " @@ -446,17 +457,29 @@ static void option_indat_callback(struct urb *urb) static void option_outdat_callback(struct urb *urb) { struct usb_serial_port *port; + struct option_port_private *portdata; + int i; dbg("%s", __FUNCTION__); port = (struct usb_serial_port *) urb->context; usb_serial_port_softint(port); + + portdata = usb_get_serial_port_data(port); + for (i = 0; i < N_OUT_URB; ++i) { + if (portdata->out_urbs[i] == urb) { + smp_mb__before_clear_bit(); + clear_bit(i, &portdata->out_busy); + break; + } + } } static void option_instat_callback(struct urb *urb) { int err; + int status = urb->status; struct usb_serial_port *port = (struct usb_serial_port *) urb->context; struct option_port_private *portdata = usb_get_serial_port_data(port); struct usb_serial *serial = port->serial; @@ -464,7 +487,7 @@ static void option_instat_callback(struct urb *urb) dbg("%s", __FUNCTION__); dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata); - if (urb->status == 0) { + if (status == 0) { struct usb_ctrlrequest *req_pkt = (struct usb_ctrlrequest *)urb->transfer_buffer; @@ -495,10 +518,10 @@ static void option_instat_callback(struct urb *urb) req_pkt->bRequestType,req_pkt->bRequest); } } else - dbg("%s: error %d", __FUNCTION__, urb->status); + dbg("%s: error %d", __FUNCTION__, status); /* Resubmit urb so we continue receiving IRQ data */ - if (urb->status != -ESHUTDOWN) { + if (status != -ESHUTDOWN) { urb->dev = serial->dev; err = usb_submit_urb(urb, GFP_ATOMIC); if (err) @@ -518,7 +541,7 @@ static int option_write_room(struct usb_serial_port *port) for (i=0; i < N_OUT_URB; i++) { this_urb = portdata->out_urbs[i]; - if (this_urb && this_urb->status != -EINPROGRESS) + if (this_urb && !test_bit(i, &portdata->out_busy)) data_len += OUT_BUFLEN; } @@ -537,7 +560,7 @@ static int option_chars_in_buffer(struct usb_serial_port *port) for (i=0; i < N_OUT_URB; i++) { this_urb = portdata->out_urbs[i]; - if (this_urb && this_urb->status == -EINPROGRESS) + if (this_urb && test_bit(i, &portdata->out_busy)) data_len += this_urb->transfer_buffer_length; } dbg("%s: %d", __FUNCTION__, data_len); diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 83dfae93a45d..f9f85f56f0db 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -1,14 +1,14 @@ /* * Prolific PL2303 USB to serial adaptor driver * - * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com) + * Copyright (C) 2001-2007 Greg Kroah-Hartman (greg@kroah.com) * Copyright (C) 2003 IBM Corp. * * Original driver for 2.2.x by anonymous * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License. + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. * * See Documentation/usb/usb-serial.txt for more information on using this driver * @@ -484,15 +484,6 @@ static void pl2303_set_termios(struct usb_serial_port *port, spin_unlock_irqrestore(&priv->lock, flags); cflag = port->tty->termios->c_cflag; - /* check that they really want us to change something */ - if (old_termios) { - if ((cflag == old_termios->c_cflag) && - (RELEVANT_IFLAG(port->tty->termios->c_iflag) == - RELEVANT_IFLAG(old_termios->c_iflag))) { - dbg("%s - nothing to change...", __FUNCTION__); - return; - } - } buf = kzalloc(7, GFP_KERNEL); if (!buf) { @@ -517,29 +508,7 @@ static void pl2303_set_termios(struct usb_serial_port *port, dbg("%s - data bits = %d", __FUNCTION__, buf[6]); } - baud = 0; - switch (cflag & CBAUD) { - case B0: baud = 0; break; - case B75: baud = 75; break; - case B150: baud = 150; break; - case B300: baud = 300; break; - case B600: baud = 600; break; - case B1200: baud = 1200; break; - case B1800: baud = 1800; break; - case B2400: baud = 2400; break; - case B4800: baud = 4800; break; - case B9600: baud = 9600; break; - case B19200: baud = 19200; break; - case B38400: baud = 38400; break; - case B57600: baud = 57600; break; - case B115200: baud = 115200; break; - case B230400: baud = 230400; break; - case B460800: baud = 460800; break; - default: - dev_err(&port->dev, "pl2303 driver does not support" - " the baudrate requested (fix it)\n"); - break; - } + baud = tty_get_baud_rate(port->tty);; dbg("%s - baud = %d", __FUNCTION__, baud); if (baud) { buf[0] = baud & 0xff; @@ -617,6 +586,13 @@ static void pl2303_set_termios(struct usb_serial_port *port, VENDOR_WRITE_REQUEST_TYPE, 0x0, index, NULL, 0, 100); dbg("0x40:0x1:0x0:0x%x %d", index, i); + } else { + i = usb_control_msg(serial->dev, + usb_sndctrlpipe(serial->dev, 0), + VENDOR_WRITE_REQUEST, + VENDOR_WRITE_REQUEST_TYPE, + 0x0, 0x0, NULL, 0, 100); + dbg ("0x40:0x1:0x0:0x0 %d", i); } kfree(buf); @@ -954,11 +930,12 @@ static void pl2303_read_int_callback(struct urb *urb) struct usb_serial_port *port = (struct usb_serial_port *) urb->context; unsigned char *data = urb->transfer_buffer; unsigned int actual_length = urb->actual_length; - int status; + int status = urb->status; + int retval; dbg("%s (%d)", __FUNCTION__, port->number); - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -967,11 +944,11 @@ static void pl2303_read_int_callback(struct urb *urb) case -ESHUTDOWN: /* this urb is terminated, clean up */ dbg("%s - urb shutting down with status: %d", __FUNCTION__, - urb->status); + status); return; default: dbg("%s - nonzero urb status received: %d", __FUNCTION__, - urb->status); + status); goto exit; } @@ -981,11 +958,11 @@ static void pl2303_read_int_callback(struct urb *urb) pl2303_update_line_status(port, data, actual_length); exit: - status = usb_submit_urb(urb, GFP_ATOMIC); - if (status) + retval = usb_submit_urb(urb, GFP_ATOMIC); + if (retval) dev_err(&urb->dev->dev, "%s - usb_submit_urb failed with result %d\n", - __FUNCTION__, status); + __FUNCTION__, retval); } static void pl2303_read_bulk_callback(struct urb *urb) @@ -997,23 +974,23 @@ static void pl2303_read_bulk_callback(struct urb *urb) unsigned long flags; int i; int result; - u8 status; + int status = urb->status; + u8 line_status; char tty_flag; dbg("%s - port %d", __FUNCTION__, port->number); - if (urb->status) { - dbg("%s - urb->status = %d", __FUNCTION__, urb->status); + if (status) { + dbg("%s - urb status = %d", __FUNCTION__, status); if (!port->open_count) { dbg("%s - port is closed, exiting.", __FUNCTION__); return; } - if (urb->status == -EPROTO) { + if (status == -EPROTO) { /* PL2303 mysteriously fails with -EPROTO reschedule * the read */ dbg("%s - caught -EPROTO, resubmitting the urb", __FUNCTION__); - urb->status = 0; urb->dev = port->serial->dev; result = usb_submit_urb(urb, GFP_ATOMIC); if (result) @@ -1033,18 +1010,18 @@ static void pl2303_read_bulk_callback(struct urb *urb) tty_flag = TTY_NORMAL; spin_lock_irqsave(&priv->lock, flags); - status = priv->line_status; + line_status = priv->line_status; priv->line_status &= ~UART_STATE_TRANSIENT_MASK; spin_unlock_irqrestore(&priv->lock, flags); wake_up_interruptible(&priv->delta_msr_wait); /* break takes precedence over parity, */ /* which takes precedence over framing errors */ - if (status & UART_BREAK_ERROR ) + if (line_status & UART_BREAK_ERROR ) tty_flag = TTY_BREAK; - else if (status & UART_PARITY_ERROR) + else if (line_status & UART_PARITY_ERROR) tty_flag = TTY_PARITY; - else if (status & UART_FRAME_ERROR) + else if (line_status & UART_FRAME_ERROR) tty_flag = TTY_FRAME; dbg("%s - tty_flag = %d", __FUNCTION__, tty_flag); @@ -1052,7 +1029,7 @@ static void pl2303_read_bulk_callback(struct urb *urb) if (tty && urb->actual_length) { tty_buffer_request_room(tty, urb->actual_length + 1); /* overrun is special, not associated with a char */ - if (status & UART_OVERRUN_ERROR) + if (line_status & UART_OVERRUN_ERROR) tty_insert_flip_char(tty, 0, TTY_OVERRUN); for (i = 0; i < urb->actual_length; ++i) tty_insert_flip_char(tty, data[i], tty_flag); @@ -1076,10 +1053,11 @@ static void pl2303_write_bulk_callback(struct urb *urb) struct usb_serial_port *port = (struct usb_serial_port *) urb->context; struct pl2303_private *priv = usb_get_serial_port_data(port); int result; + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -1088,14 +1066,14 @@ static void pl2303_write_bulk_callback(struct urb *urb) case -ESHUTDOWN: /* this urb is terminated, clean up */ dbg("%s - urb shutting down with status: %d", __FUNCTION__, - urb->status); + status); priv->write_urb_in_use = 0; return; default: /* error in the urb, so we have to resubmit it */ dbg("%s - Overflow in write", __FUNCTION__); dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, - urb->status); + status); port->write_urb->transfer_buffer_length = 1; port->write_urb->dev = port->serial->dev; result = usb_submit_urb(port->write_urb, GFP_ATOMIC); diff --git a/drivers/usb/serial/safe_serial.c b/drivers/usb/serial/safe_serial.c index 5a03a3fc9386..51669b7622bb 100644 --- a/drivers/usb/serial/safe_serial.c +++ b/drivers/usb/serial/safe_serial.c @@ -74,13 +74,13 @@ #include <linux/usb/serial.h> -#ifndef CONFIG_USB_SAFE_PADDED -#define CONFIG_USB_SAFE_PADDED 0 +#ifndef CONFIG_USB_SERIAL_SAFE_PADDED +#define CONFIG_USB_SERIAL_SAFE_PADDED 0 #endif static int debug; static int safe = 1; -static int padded = CONFIG_USB_SAFE_PADDED; +static int padded = CONFIG_USB_SERIAL_SAFE_PADDED; #define DRIVER_VERSION "v0.0b" #define DRIVER_AUTHOR "sl@lineo.com, tbr@lineo.com" @@ -211,11 +211,13 @@ static void safe_read_bulk_callback (struct urb *urb) unsigned char length = urb->actual_length; int i; int result; + int status = urb->status; dbg ("%s", __FUNCTION__); - if (urb->status) { - dbg ("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero read bulk status received: %d", + __FUNCTION__, status); return; } diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index ac1829c6e8f0..0bb8de4cc524 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -1,7 +1,7 @@ /* USB Driver for Sierra Wireless - Copyright (C) 2006 Kevin Lloyd <linux@sierrawireless.com> + Copyright (C) 2006, 2007 Kevin Lloyd <linux@sierrawireless.com> IMPORTANT DISCLAIMER: This driver is not commercially supported by Sierra Wireless. Use at your own risk. @@ -12,10 +12,9 @@ Portions based on the option driver by Matthias Urlichs <smurf@smurf.noris.de> Whom based his on the Keyspan driver by Hugh Blemings <hugh@blemings.org> - */ -#define DRIVER_VERSION "v.1.0.6" +#define DRIVER_VERSION "v.1.2.5b" #define DRIVER_AUTHOR "Kevin Lloyd <linux@sierrawireless.com>" #define DRIVER_DESC "USB Driver for Sierra Wireless USB modems" @@ -28,23 +27,99 @@ #include <linux/usb.h> #include <linux/usb/serial.h> +#define SWIMS_USB_REQUEST_SetMode 0x0B +#define SWIMS_USB_REQUEST_TYPE_SetMode 0x40 +#define SWIMS_USB_INDEX_SetMode 0x0000 +#define SWIMS_SET_MODE_Modem 0x0001 + +/* per port private data */ +#define N_IN_URB 4 +#define N_OUT_URB 4 +#define IN_BUFLEN 4096 + +static int debug; + +enum devicetype { + DEVICE_3_PORT = 0, + DEVICE_1_PORT = 1, + DEVICE_INSTALLER = 2, +}; + +static int sierra_set_power_state(struct usb_device *udev, __u16 swiState) +{ + int result; + dev_dbg(&udev->dev, "%s", "SET POWER STATE"); + result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), + 0x00, /* __u8 request */ + 0x40, /* __u8 request type */ + swiState, /* __u16 value */ + 0, /* __u16 index */ + NULL, /* void *data */ + 0, /* __u16 size */ + USB_CTRL_SET_TIMEOUT); /* int timeout */ + return result; +} + +static int sierra_set_ms_mode(struct usb_device *udev, __u16 eSocMode) +{ + int result; + dev_dbg(&udev->dev, "%s", "DEVICE MODE SWITCH"); + result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), + SWIMS_USB_REQUEST_SetMode, /* __u8 request */ + SWIMS_USB_REQUEST_TYPE_SetMode, /* __u8 request type */ + eSocMode, /* __u16 value */ + SWIMS_USB_INDEX_SetMode, /* __u16 index */ + NULL, /* void *data */ + 0, /* __u16 size */ + USB_CTRL_SET_TIMEOUT); /* int timeout */ + return result; +} + +static int sierra_probe(struct usb_interface *iface, + const struct usb_device_id *id) +{ + int result; + struct usb_device *udev; + + udev = usb_get_dev(interface_to_usbdev(iface)); + + /* Check if in installer mode */ + if (id->driver_info == DEVICE_INSTALLER) { + dev_dbg(&udev->dev, "%s", "FOUND DEVICE(SW)\n"); + result = sierra_set_ms_mode(udev, SWIMS_SET_MODE_Modem); + /*We do not want to bind to the device when in installer mode*/ + return -EIO; + } + + return usb_serial_probe(iface, id); +} static struct usb_device_id id_table [] = { { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ + { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */ { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ - { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless AirCard 595U */ { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ + { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ + { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ - { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 */ + { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ + { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/ + { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/ + { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ + { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ + { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ + { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ - { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */ - { USB_DEVICE(0x0F3D, 0x0112) }, /* AirPrime/Sierra PC 5220 */ + { USB_DEVICE(0x1199, 0x0112), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 580 */ + { USB_DEVICE(0x0F3D, 0x0112), .driver_info = DEVICE_1_PORT }, /* Airprime/Sierra PC 5220 */ + + { USB_DEVICE(0x1199, 0x0FFF), .driver_info = DEVICE_INSTALLER}, { } }; MODULE_DEVICE_TABLE(usb, id_table); @@ -58,43 +133,43 @@ static struct usb_device_id id_table_1port [] = { static struct usb_device_id id_table_3port [] = { { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ + { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */ { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ - { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless AirCard 595U */ { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ + { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U*/ + { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ - { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 */ + { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ + { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/ + { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/ + { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ + { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ + { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880E */ + { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881E */ { } }; static struct usb_driver sierra_driver = { .name = "sierra", - .probe = usb_serial_probe, + .probe = sierra_probe, .disconnect = usb_serial_disconnect, .id_table = id_table, .no_dynamic_id = 1, }; -static int debug; - -/* per port private data */ -#define N_IN_URB 4 -#define N_OUT_URB 4 -#define IN_BUFLEN 4096 -#define OUT_BUFLEN 128 - struct sierra_port_private { + spinlock_t lock; /* lock the structure */ + int outstanding_urbs; /* number of out urbs in flight */ + /* Input endpoints and buffer for this port */ struct urb *in_urbs[N_IN_URB]; char in_buffer[N_IN_URB][IN_BUFLEN]; - /* Output endpoints and buffer for this port */ - struct urb *out_urbs[N_OUT_URB]; - char out_buffer[N_OUT_URB][OUT_BUFLEN]; /* Settings for the port */ int rts_state; /* Handshaking pins (outputs) */ @@ -103,8 +178,6 @@ struct sierra_port_private { int dsr_state; int dcd_state; int ri_state; - - unsigned long tx_start_time[N_OUT_URB]; }; static int sierra_send_setup(struct usb_serial_port *port) @@ -197,61 +270,98 @@ static int sierra_ioctl(struct usb_serial_port *port, struct file *file, return -ENOIOCTLCMD; } +static void sierra_outdat_callback(struct urb *urb) +{ + struct usb_serial_port *port = urb->context; + struct sierra_port_private *portdata = usb_get_serial_port_data(port); + int status = urb->status; + unsigned long flags; + + dbg("%s - port %d", __FUNCTION__, port->number); + + /* free up the transfer buffer, as usb_free_urb() does not do this */ + kfree(urb->transfer_buffer); + + if (status) + dbg("%s - nonzero write bulk status received: %d", + __FUNCTION__, status); + + spin_lock_irqsave(&portdata->lock, flags); + --portdata->outstanding_urbs; + spin_unlock_irqrestore(&portdata->lock, flags); + + usb_serial_port_softint(port); +} + /* Write */ static int sierra_write(struct usb_serial_port *port, const unsigned char *buf, int count) { - struct sierra_port_private *portdata; - int i; - int left, todo; - struct urb *this_urb = NULL; /* spurious */ - int err; + struct sierra_port_private *portdata = usb_get_serial_port_data(port); + struct usb_serial *serial = port->serial; + unsigned long flags; + unsigned char *buffer; + struct urb *urb; + int status; portdata = usb_get_serial_port_data(port); dbg("%s: write (%d chars)", __FUNCTION__, count); - i = 0; - left = count; - for (i=0; left > 0 && i < N_OUT_URB; i++) { - todo = left; - if (todo > OUT_BUFLEN) - todo = OUT_BUFLEN; - - this_urb = portdata->out_urbs[i]; - if (this_urb->status == -EINPROGRESS) { - if (time_before(jiffies, - portdata->tx_start_time[i] + 10 * HZ)) - continue; - usb_unlink_urb(this_urb); - continue; - } - if (this_urb->status != 0) - dbg("usb_write %p failed (err=%d)", - this_urb, this_urb->status); - - dbg("%s: endpoint %d buf %d", __FUNCTION__, - usb_pipeendpoint(this_urb->pipe), i); - - /* send the data */ - memcpy (this_urb->transfer_buffer, buf, todo); - this_urb->transfer_buffer_length = todo; - - this_urb->dev = port->serial->dev; - err = usb_submit_urb(this_urb, GFP_ATOMIC); - if (err) { - dbg("usb_submit_urb %p (write bulk) failed " - "(%d, has %d)", this_urb, - err, this_urb->status); - continue; - } - portdata->tx_start_time[i] = jiffies; - buf += todo; - left -= todo; + spin_lock_irqsave(&portdata->lock, flags); + if (portdata->outstanding_urbs > N_OUT_URB) { + spin_unlock_irqrestore(&portdata->lock, flags); + dbg("%s - write limit hit\n", __FUNCTION__); + return 0; + } + portdata->outstanding_urbs++; + spin_unlock_irqrestore(&portdata->lock, flags); + + buffer = kmalloc(count, GFP_ATOMIC); + if (!buffer) { + dev_err(&port->dev, "out of memory\n"); + count = -ENOMEM; + goto error_no_buffer; + } + + urb = usb_alloc_urb(0, GFP_ATOMIC); + if (!urb) { + dev_err(&port->dev, "no more free urbs\n"); + count = -ENOMEM; + goto error_no_urb; + } + + memcpy(buffer, buf, count); + + usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, buffer); + + usb_fill_bulk_urb(urb, serial->dev, + usb_sndbulkpipe(serial->dev, + port->bulk_out_endpointAddress), + buffer, count, sierra_outdat_callback, port); + + /* send it down the pipe */ + status = usb_submit_urb(urb, GFP_ATOMIC); + if (status) { + dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed " + "with status = %d\n", __FUNCTION__, status); + count = status; + goto error; } - count -= left; - dbg("%s: wrote (did %d)", __FUNCTION__, count); + /* we are done with this urb, so let the host driver + * really free it when it is finished with it */ + usb_free_urb(urb); + + return count; +error: + usb_free_urb(urb); +error_no_urb: + kfree(buffer); +error_no_buffer: + spin_lock_irqsave(&portdata->lock, flags); + --portdata->outstanding_urbs; + spin_unlock_irqrestore(&portdata->lock, flags); return count; } @@ -262,15 +372,16 @@ static void sierra_indat_callback(struct urb *urb) struct usb_serial_port *port; struct tty_struct *tty; unsigned char *data = urb->transfer_buffer; + int status = urb->status; dbg("%s: %p", __FUNCTION__, urb); endpoint = usb_pipeendpoint(urb->pipe); port = (struct usb_serial_port *) urb->context; - if (urb->status) { + if (status) { dbg("%s: nonzero status: %d on endpoint %02x.", - __FUNCTION__, urb->status, endpoint); + __FUNCTION__, status, endpoint); } else { tty = port->tty; if (urb->actual_length) { @@ -282,30 +393,20 @@ static void sierra_indat_callback(struct urb *urb) } /* Resubmit urb so we continue receiving */ - if (port->open_count && urb->status != -ESHUTDOWN) { + if (port->open_count && status != -ESHUTDOWN) { err = usb_submit_urb(urb, GFP_ATOMIC); if (err) - printk(KERN_ERR "%s: resubmit read urb failed. " - "(%d)", __FUNCTION__, err); + dev_err(&port->dev, "resubmit read urb failed." + "(%d)", err); } } return; } -static void sierra_outdat_callback(struct urb *urb) -{ - struct usb_serial_port *port; - - dbg("%s", __FUNCTION__); - - port = (struct usb_serial_port *) urb->context; - - usb_serial_port_softint(port); -} - static void sierra_instat_callback(struct urb *urb) { int err; + int status = urb->status; struct usb_serial_port *port = (struct usb_serial_port *) urb->context; struct sierra_port_private *portdata = usb_get_serial_port_data(port); struct usb_serial *serial = port->serial; @@ -313,7 +414,7 @@ static void sierra_instat_callback(struct urb *urb) dbg("%s", __FUNCTION__); dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata); - if (urb->status == 0) { + if (status == 0) { struct usb_ctrlrequest *req_pkt = (struct usb_ctrlrequest *)urb->transfer_buffer; @@ -344,10 +445,10 @@ static void sierra_instat_callback(struct urb *urb) req_pkt->bRequestType,req_pkt->bRequest); } } else - dbg("%s: error %d", __FUNCTION__, urb->status); + dbg("%s: error %d", __FUNCTION__, status); /* Resubmit urb so we continue receiving IRQ data */ - if (urb->status != -ESHUTDOWN) { + if (status != -ESHUTDOWN) { urb->dev = serial->dev; err = usb_submit_urb(urb, GFP_ATOMIC); if (err) @@ -358,49 +459,44 @@ static void sierra_instat_callback(struct urb *urb) static int sierra_write_room(struct usb_serial_port *port) { - struct sierra_port_private *portdata; - int i; - int data_len = 0; - struct urb *this_urb; + struct sierra_port_private *portdata = usb_get_serial_port_data(port); + unsigned long flags; - portdata = usb_get_serial_port_data(port); + dbg("%s - port %d", __FUNCTION__, port->number); - for (i=0; i < N_OUT_URB; i++) { - this_urb = portdata->out_urbs[i]; - if (this_urb && this_urb->status != -EINPROGRESS) - data_len += OUT_BUFLEN; + /* try to give a good number back based on if we have any free urbs at + * this point in time */ + spin_lock_irqsave(&portdata->lock, flags); + if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) { + spin_unlock_irqrestore(&portdata->lock, flags); + dbg("%s - write limit hit\n", __FUNCTION__); + return 0; } + spin_unlock_irqrestore(&portdata->lock, flags); - dbg("%s: %d", __FUNCTION__, data_len); - return data_len; + return 2048; } static int sierra_chars_in_buffer(struct usb_serial_port *port) { - struct sierra_port_private *portdata; - int i; - int data_len = 0; - struct urb *this_urb; - - portdata = usb_get_serial_port_data(port); - - for (i=0; i < N_OUT_URB; i++) { - this_urb = portdata->out_urbs[i]; - if (this_urb && this_urb->status == -EINPROGRESS) - data_len += this_urb->transfer_buffer_length; - } - dbg("%s: %d", __FUNCTION__, data_len); - return data_len; + dbg("%s - port %d", __FUNCTION__, port->number); + + /* + * We can't really account for how much data we + * have sent out, but hasn't made it through to the + * device as we can't see the backend here, so just + * tell the tty layer that everything is flushed. + */ + return 0; } static int sierra_open(struct usb_serial_port *port, struct file *filp) { struct sierra_port_private *portdata; struct usb_serial *serial = port->serial; - int i, err; + int i; struct urb *urb; int result; - __u16 set_mode_dzero = 0x0000; portdata = usb_get_serial_port_data(port); @@ -413,7 +509,7 @@ static int sierra_open(struct usb_serial_port *port, struct file *filp) /* Reset low level data toggle and start reading from endpoints */ for (i = 0; i < N_IN_URB; i++) { urb = portdata->in_urbs[i]; - if (! urb) + if (!urb) continue; if (urb->dev != serial->dev) { dbg("%s: dev %p != %p", __FUNCTION__, @@ -427,35 +523,25 @@ static int sierra_open(struct usb_serial_port *port, struct file *filp) */ usb_clear_halt(urb->dev, urb->pipe); - err = usb_submit_urb(urb, GFP_KERNEL); - if (err) { - dbg("%s: submit urb %d failed (%d) %d", - __FUNCTION__, i, err, - urb->transfer_buffer_length); + result = usb_submit_urb(urb, GFP_KERNEL); + if (result) { + dev_err(&port->dev, "submit urb %d failed (%d) %d", + i, result, urb->transfer_buffer_length); } } - /* Reset low level data toggle on out endpoints */ - for (i = 0; i < N_OUT_URB; i++) { - urb = portdata->out_urbs[i]; - if (! urb) - continue; - urb->dev = serial->dev; - /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), - usb_pipeout(urb->pipe), 0); */ - } - port->tty->low_latency = 1; - /* set mode to D0 */ - result = usb_control_msg(serial->dev, - usb_rcvctrlpipe(serial->dev, 0), - 0x00, 0x40, set_mode_dzero, 0, NULL, - 0, USB_CTRL_SET_TIMEOUT); - sierra_send_setup(port); - return (0); + /* start up the interrupt endpoint if we have one */ + if (port->interrupt_in_urb) { + result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); + if (result) + dev_err(&port->dev, "submit irq_in urb failed %d", + result); + } + return 0; } static void sierra_close(struct usb_serial_port *port, struct file *filp) @@ -475,74 +561,27 @@ static void sierra_close(struct usb_serial_port *port, struct file *filp) /* Stop reading/writing urbs */ for (i = 0; i < N_IN_URB; i++) - usb_unlink_urb(portdata->in_urbs[i]); - for (i = 0; i < N_OUT_URB; i++) - usb_unlink_urb(portdata->out_urbs[i]); - } - port->tty = NULL; -} - -/* Helper functions used by sierra_setup_urbs */ -static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint, - int dir, void *ctx, char *buf, int len, - usb_complete_t callback) -{ - struct urb *urb; - - if (endpoint == -1) - return NULL; /* endpoint not needed */ - - urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */ - if (urb == NULL) { - dbg("%s: alloc for endpoint %d failed.", __FUNCTION__, endpoint); - return NULL; + usb_kill_urb(portdata->in_urbs[i]); } - /* Fill URB using supplied data. */ - usb_fill_bulk_urb(urb, serial->dev, - usb_sndbulkpipe(serial->dev, endpoint) | dir, - buf, len, callback, ctx); - - return urb; -} - -/* Setup urbs */ -static void sierra_setup_urbs(struct usb_serial *serial) -{ - int i,j; - struct usb_serial_port *port; - struct sierra_port_private *portdata; - - dbg("%s", __FUNCTION__); - - for (i = 0; i < serial->num_ports; i++) { - port = serial->port[i]; - portdata = usb_get_serial_port_data(port); - - /* Do indat endpoints first */ - for (j = 0; j < N_IN_URB; ++j) { - portdata->in_urbs[j] = sierra_setup_urb (serial, - port->bulk_in_endpointAddress, USB_DIR_IN, port, - portdata->in_buffer[j], IN_BUFLEN, sierra_indat_callback); - } + usb_kill_urb(port->interrupt_in_urb); - /* outdat endpoints */ - for (j = 0; j < N_OUT_URB; ++j) { - portdata->out_urbs[j] = sierra_setup_urb (serial, - port->bulk_out_endpointAddress, USB_DIR_OUT, port, - portdata->out_buffer[j], OUT_BUFLEN, sierra_outdat_callback); - } - } + port->tty = NULL; } static int sierra_startup(struct usb_serial *serial) { - int i, err; struct usb_serial_port *port; struct sierra_port_private *portdata; + struct urb *urb; + int i; + int j; dbg("%s", __FUNCTION__); + /*Set Device mode to D0 */ + sierra_set_power_state(serial->dev, 0x0000); + /* Now setup per port private data */ for (i = 0; i < serial->num_ports; i++) { port = serial->port[i]; @@ -550,22 +589,31 @@ static int sierra_startup(struct usb_serial *serial) if (!portdata) { dbg("%s: kmalloc for sierra_port_private (%d) failed!.", __FUNCTION__, i); - return (1); + return -ENOMEM; } + spin_lock_init(&portdata->lock); usb_set_serial_port_data(port, portdata); - if (! port->interrupt_in_urb) - continue; - err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); - if (err) - dbg("%s: submit irq_in urb failed %d", - __FUNCTION__, err); + /* initialize the in urbs */ + for (j = 0; j < N_IN_URB; ++j) { + urb = usb_alloc_urb(0, GFP_KERNEL); + if (urb == NULL) { + dbg("%s: alloc for in port failed.", + __FUNCTION__); + continue; + } + /* Fill URB using supplied data. */ + usb_fill_bulk_urb(urb, serial->dev, + usb_rcvbulkpipe(serial->dev, + port->bulk_in_endpointAddress), + portdata->in_buffer[j], IN_BUFLEN, + sierra_indat_callback, port); + portdata->in_urbs[j] = urb; + } } - sierra_setup_urbs(serial); - - return (0); + return 0; } static void sierra_shutdown(struct usb_serial *serial) @@ -576,22 +624,6 @@ static void sierra_shutdown(struct usb_serial *serial) dbg("%s", __FUNCTION__); - /* Stop reading/writing urbs */ - for (i = 0; i < serial->num_ports; ++i) { - port = serial->port[i]; - if (!port) - continue; - portdata = usb_get_serial_port_data(port); - if (!portdata) - continue; - - for (j = 0; j < N_IN_URB; j++) - usb_unlink_urb(portdata->in_urbs[j]); - for (j = 0; j < N_OUT_URB; j++) - usb_unlink_urb(portdata->out_urbs[j]); - } - - /* Now free them */ for (i = 0; i < serial->num_ports; ++i) { port = serial->port[i]; if (!port) @@ -601,25 +633,12 @@ static void sierra_shutdown(struct usb_serial *serial) continue; for (j = 0; j < N_IN_URB; j++) { - if (portdata->in_urbs[j]) { - usb_free_urb(portdata->in_urbs[j]); - portdata->in_urbs[j] = NULL; - } + usb_kill_urb(portdata->in_urbs[j]); + usb_free_urb(portdata->in_urbs[j]); + portdata->in_urbs[j] = NULL; } - for (j = 0; j < N_OUT_URB; j++) { - if (portdata->out_urbs[j]) { - usb_free_urb(portdata->out_urbs[j]); - portdata->out_urbs[j] = NULL; - } - } - } - - /* Now free per port private data */ - for (i = 0; i < serial->num_ports; i++) { - port = serial->port[i]; - if (!port) - continue; - kfree(usb_get_serial_port_data(port)); + kfree(portdata); + usb_set_serial_port_data(port, NULL); } } diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 3d505fd0645b..f98626ae75fe 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -1112,22 +1112,24 @@ static void ti_interrupt_callback(struct urb *urb) int length = urb->actual_length; int port_number; int function; - int status; + int status = urb->status; + int retval; __u8 msr; dbg("%s", __FUNCTION__); - switch (urb->status) { + switch (status) { case 0: break; case -ECONNRESET: case -ENOENT: case -ESHUTDOWN: - dbg("%s - urb shutting down, %d", __FUNCTION__, urb->status); + dbg("%s - urb shutting down, %d", __FUNCTION__, status); tdev->td_urb_error = 1; return; default: - dev_err(dev, "%s - nonzero urb status, %d\n", __FUNCTION__, urb->status); + dev_err(dev, "%s - nonzero urb status, %d\n", + __FUNCTION__, status); tdev->td_urb_error = 1; goto exit; } @@ -1175,9 +1177,10 @@ static void ti_interrupt_callback(struct urb *urb) } exit: - status = usb_submit_urb(urb, GFP_ATOMIC); - if (status) - dev_err(dev, "%s - resubmit interrupt urb failed, %d\n", __FUNCTION__, status); + retval = usb_submit_urb(urb, GFP_ATOMIC); + if (retval) + dev_err(dev, "%s - resubmit interrupt urb failed, %d\n", + __FUNCTION__, retval); } @@ -1186,30 +1189,32 @@ static void ti_bulk_in_callback(struct urb *urb) struct ti_port *tport = (struct ti_port *)urb->context; struct usb_serial_port *port = tport->tp_port; struct device *dev = &urb->dev->dev; - int status = 0; + int status = urb->status; + int retval = 0; dbg("%s", __FUNCTION__); - switch (urb->status) { + switch (status) { case 0: break; case -ECONNRESET: case -ENOENT: case -ESHUTDOWN: - dbg("%s - urb shutting down, %d", __FUNCTION__, urb->status); + dbg("%s - urb shutting down, %d", __FUNCTION__, status); tport->tp_tdev->td_urb_error = 1; wake_up_interruptible(&tport->tp_write_wait); return; default: - dev_err(dev, "%s - nonzero urb status, %d\n", __FUNCTION__, urb->status ); + dev_err(dev, "%s - nonzero urb status, %d\n", + __FUNCTION__, status ); tport->tp_tdev->td_urb_error = 1; wake_up_interruptible(&tport->tp_write_wait); } - if (urb->status == -EPIPE) + if (status == -EPIPE) goto exit; - if (urb->status) { + if (status) { dev_err(dev, "%s - stopping read!\n", __FUNCTION__); return; } @@ -1234,13 +1239,14 @@ exit: spin_lock(&tport->tp_lock); if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) { urb->dev = port->serial->dev; - status = usb_submit_urb(urb, GFP_ATOMIC); + retval = usb_submit_urb(urb, GFP_ATOMIC); } else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING) { tport->tp_read_urb_state = TI_READ_URB_STOPPED; } spin_unlock(&tport->tp_lock); - if (status) - dev_err(dev, "%s - resubmit read urb failed, %d\n", __FUNCTION__, status); + if (retval) + dev_err(dev, "%s - resubmit read urb failed, %d\n", + __FUNCTION__, retval); } @@ -1249,23 +1255,25 @@ static void ti_bulk_out_callback(struct urb *urb) struct ti_port *tport = (struct ti_port *)urb->context; struct usb_serial_port *port = tport->tp_port; struct device *dev = &urb->dev->dev; + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); tport->tp_write_urb_in_use = 0; - switch (urb->status) { + switch (status) { case 0: break; case -ECONNRESET: case -ENOENT: case -ESHUTDOWN: - dbg("%s - urb shutting down, %d", __FUNCTION__, urb->status); + dbg("%s - urb shutting down, %d", __FUNCTION__, status); tport->tp_tdev->td_urb_error = 1; wake_up_interruptible(&tport->tp_write_wait); return; default: - dev_err(dev, "%s - nonzero urb status, %d\n", __FUNCTION__, urb->status); + dev_err(dev, "%s - nonzero urb status, %d\n", + __FUNCTION__, status); tport->tp_tdev->td_urb_error = 1; wake_up_interruptible(&tport->tp_write_wait); } diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 87f378806db6..9bf01a5efc84 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -46,6 +46,8 @@ static struct usb_driver usb_serial_driver = { .name = "usbserial", .probe = usb_serial_probe, .disconnect = usb_serial_disconnect, + .suspend = usb_serial_suspend, + .resume = usb_serial_resume, .no_dynamic_id = 1, }; @@ -58,19 +60,19 @@ static struct usb_driver usb_serial_driver = { static int debug; static struct usb_serial *serial_table[SERIAL_TTY_MINORS]; /* initially all NULL */ -static spinlock_t table_lock; +static DEFINE_MUTEX(table_lock); static LIST_HEAD(usb_serial_driver_list); struct usb_serial *usb_serial_get_by_index(unsigned index) { struct usb_serial *serial; - spin_lock(&table_lock); + mutex_lock(&table_lock); serial = serial_table[index]; if (serial) kref_get(&serial->kref); - spin_unlock(&table_lock); + mutex_unlock(&table_lock); return serial; } @@ -82,7 +84,7 @@ static struct usb_serial *get_free_serial (struct usb_serial *serial, int num_po dbg("%s %d", __FUNCTION__, num_ports); *minor = 0; - spin_lock(&table_lock); + mutex_lock(&table_lock); for (i = 0; i < SERIAL_TTY_MINORS; ++i) { if (serial_table[i]) continue; @@ -104,10 +106,10 @@ static struct usb_serial *get_free_serial (struct usb_serial *serial, int num_po serial_table[i] = serial; serial->port[j++]->number = i; } - spin_unlock(&table_lock); + mutex_unlock(&table_lock); return serial; } - spin_unlock(&table_lock); + mutex_unlock(&table_lock); return NULL; } @@ -120,11 +122,9 @@ static void return_serial(struct usb_serial *serial) if (serial == NULL) return; - spin_lock(&table_lock); for (i = 0; i < serial->num_ports; ++i) { serial_table[serial->minor + i] = NULL; } - spin_unlock(&table_lock); } static void destroy_serial(struct kref *kref) @@ -172,7 +172,9 @@ static void destroy_serial(struct kref *kref) void usb_serial_put(struct usb_serial *serial) { + mutex_lock(&table_lock); kref_put(&serial->kref, destroy_serial); + mutex_unlock(&table_lock); } /***************************************************************************** @@ -1069,6 +1071,36 @@ void usb_serial_disconnect(struct usb_interface *interface) dev_info(dev, "device disconnected\n"); } +int usb_serial_suspend(struct usb_interface *intf, pm_message_t message) +{ + struct usb_serial *serial = usb_get_intfdata(intf); + struct usb_serial_port *port; + int i, r = 0; + + if (!serial) /* device has been disconnected */ + return 0; + + for (i = 0; i < serial->num_ports; ++i) { + port = serial->port[i]; + if (port) + kill_traffic(port); + } + + if (serial->type->suspend) + r = serial->type->suspend(serial, message); + + return r; +} +EXPORT_SYMBOL(usb_serial_suspend); + +int usb_serial_resume(struct usb_interface *intf) +{ + struct usb_serial *serial = usb_get_intfdata(intf); + + return serial->type->resume(serial); +} +EXPORT_SYMBOL(usb_serial_resume); + static const struct tty_operations serial_ops = { .open = serial_open, .close = serial_close, @@ -1097,7 +1129,6 @@ static int __init usb_serial_init(void) return -ENOMEM; /* Initialize our global data */ - spin_lock_init(&table_lock); for (i = 0; i < SERIAL_TTY_MINORS; ++i) { serial_table[i] = NULL; } diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c index ffbe601cde2a..30e08c0bcdc2 100644 --- a/drivers/usb/serial/visor.c +++ b/drivers/usb/serial/visor.c @@ -5,9 +5,9 @@ * Copyright (C) 1999 - 2004 * Greg Kroah-Hartman (greg@kroah.com) * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License. + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. * * See Documentation/usb/usb-serial.txt for more information on using this driver * @@ -104,6 +104,8 @@ static struct usb_device_id id_table [] = { .driver_info = (kernel_ulong_t)&palm_os_4_probe }, { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID), .driver_info = (kernel_ulong_t)&palm_os_4_probe }, + { USB_DEVICE(ACER_VENDOR_ID, ACER_S10_ID), + .driver_info = (kernel_ulong_t)&palm_os_4_probe }, { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID), .driver_info = (kernel_ulong_t)&palm_os_4_probe }, { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID), @@ -273,7 +275,8 @@ struct visor_private { int bytes_in; int bytes_out; int outstanding_urbs; - int throttled; + unsigned char throttled; + unsigned char actually_throttled; }; /* number of outstanding urbs to prevent userspace DoS from happening */ @@ -484,16 +487,17 @@ static void visor_write_bulk_callback (struct urb *urb) { struct usb_serial_port *port = (struct usb_serial_port *)urb->context; struct visor_private *priv = usb_get_serial_port_data(port); + int status = urb->status; unsigned long flags; /* free up the transfer buffer, as usb_free_urb() does not do this */ kfree (urb->transfer_buffer); dbg("%s - port %d", __FUNCTION__, port->number); - - if (urb->status) + + if (status) dbg("%s - nonzero write bulk status received: %d", - __FUNCTION__, urb->status); + __FUNCTION__, status); spin_lock_irqsave(&priv->lock, flags); --priv->outstanding_urbs; @@ -508,15 +512,16 @@ static void visor_read_bulk_callback (struct urb *urb) struct usb_serial_port *port = (struct usb_serial_port *)urb->context; struct visor_private *priv = usb_get_serial_port_data(port); unsigned char *data = urb->transfer_buffer; + int status = urb->status; struct tty_struct *tty; - unsigned long flags; - int throttled; int result; + int available_room; dbg("%s - port %d", __FUNCTION__, port->number); - if (urb->status) { - dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero read bulk status received: %d", + __FUNCTION__, status); return; } @@ -524,17 +529,20 @@ static void visor_read_bulk_callback (struct urb *urb) tty = port->tty; if (tty && urb->actual_length) { - tty_buffer_request_room(tty, urb->actual_length); - tty_insert_flip_string(tty, data, urb->actual_length); - tty_flip_buffer_push(tty); + available_room = tty_buffer_request_room(tty, urb->actual_length); + if (available_room) { + tty_insert_flip_string(tty, data, available_room); + tty_flip_buffer_push(tty); + } + spin_lock(&priv->lock); + priv->bytes_in += available_room; + + } else { + spin_lock(&priv->lock); } - spin_lock_irqsave(&priv->lock, flags); - priv->bytes_in += urb->actual_length; - throttled = priv->throttled; - spin_unlock_irqrestore(&priv->lock, flags); /* Continue trying to always read if we should */ - if (!throttled) { + if (!priv->throttled) { usb_fill_bulk_urb (port->read_urb, port->serial->dev, usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress), @@ -544,16 +552,19 @@ static void visor_read_bulk_callback (struct urb *urb) result = usb_submit_urb(port->read_urb, GFP_ATOMIC); if (result) dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result); + } else { + priv->actually_throttled = 1; } - return; + spin_unlock(&priv->lock); } static void visor_read_int_callback (struct urb *urb) { struct usb_serial_port *port = (struct usb_serial_port *)urb->context; + int status = urb->status; int result; - switch (urb->status) { + switch (status) { case 0: /* success */ break; @@ -562,11 +573,11 @@ static void visor_read_int_callback (struct urb *urb) case -ESHUTDOWN: /* this urb is terminated, clean up */ dbg("%s - urb shutting down with status: %d", - __FUNCTION__, urb->status); + __FUNCTION__, status); return; default: dbg("%s - nonzero urb status received: %d", - __FUNCTION__, urb->status); + __FUNCTION__, status); goto exit; } @@ -608,6 +619,7 @@ static void visor_unthrottle (struct usb_serial_port *port) dbg("%s - port %d", __FUNCTION__, port->number); spin_lock_irqsave(&priv->lock, flags); priv->throttled = 0; + priv->actually_throttled = 0; spin_unlock_irqrestore(&priv->lock, flags); port->read_urb->dev = port->serial->dev; @@ -938,14 +950,6 @@ static void visor_set_termios (struct usb_serial_port *port, struct ktermios *ol } cflag = port->tty->termios->c_cflag; - /* check that they really want us to change something */ - if (old_termios) { - if ((cflag == old_termios->c_cflag) && - (RELEVANT_IFLAG(port->tty->termios->c_iflag) == RELEVANT_IFLAG(old_termios->c_iflag))) { - dbg("%s - nothing to change...", __FUNCTION__); - return; - } - } /* get the byte size */ switch (cflag & CSIZE) { diff --git a/drivers/usb/serial/visor.h b/drivers/usb/serial/visor.h index 4ce6f62a6f39..57229cf66477 100644 --- a/drivers/usb/serial/visor.h +++ b/drivers/usb/serial/visor.h @@ -48,6 +48,9 @@ #define SONY_CLIE_UX50_ID 0x0144 #define SONY_CLIE_TJ25_ID 0x0169 +#define ACER_VENDOR_ID 0x0502 +#define ACER_S10_ID 0x0001 + #define SAMSUNG_VENDOR_ID 0x04E8 #define SAMSUNG_SCH_I330_ID 0x8001 #define SAMSUNG_SPH_I500_ID 0x6601 diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index 27c5f8f9a2d5..cc8b44c08712 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -74,6 +74,7 @@ #include <linux/tty_flip.h> #include <linux/module.h> #include <linux/spinlock.h> +#include <linux/mutex.h> #include <asm/uaccess.h> #include <asm/termbits.h> #include <linux/usb.h> @@ -203,7 +204,7 @@ static struct usb_serial_driver whiteheat_device = { struct whiteheat_command_private { - spinlock_t lock; + struct mutex mutex; __u8 port_running; __u8 command_finished; wait_queue_head_t wait_command; /* for handling sleeping while waiting for a command to finish */ @@ -232,6 +233,7 @@ struct whiteheat_private { struct usb_serial_port *port; struct list_head tx_urbs_free; struct list_head tx_urbs_submitted; + struct mutex deathwarrant; }; @@ -425,6 +427,7 @@ static int whiteheat_attach (struct usb_serial *serial) } spin_lock_init(&info->lock); + mutex_init(&info->deathwarrant); info->flags = 0; info->mcr = 0; INIT_WORK(&info->rx_work, rx_data_softint); @@ -495,7 +498,7 @@ static int whiteheat_attach (struct usb_serial *serial) goto no_command_private; } - spin_lock_init(&command_info->lock); + mutex_init(&command_info->mutex); command_info->port_running = 0; init_waitqueue_head(&command_info->wait_command); usb_set_serial_port_data(command_port, command_info); @@ -654,7 +657,6 @@ static void whiteheat_close(struct usb_serial_port *port, struct file * filp) struct urb *urb; struct list_head *tmp; struct list_head *tmp2; - unsigned long flags; dbg("%s - port %d", __FUNCTION__, port->number); @@ -683,24 +685,32 @@ static void whiteheat_close(struct usb_serial_port *port, struct file * filp) firm_close(port); +printk(KERN_ERR"Before processing rx_urbs_submitted.\n"); /* shutdown our bulk reads and writes */ - spin_lock_irqsave(&info->lock, flags); + mutex_lock(&info->deathwarrant); + spin_lock_irq(&info->lock); list_for_each_safe(tmp, tmp2, &info->rx_urbs_submitted) { wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); urb = wrap->urb; + list_del(tmp); + spin_unlock_irq(&info->lock); usb_kill_urb(urb); - list_move(tmp, &info->rx_urbs_free); + spin_lock_irq(&info->lock); + list_add(tmp, &info->rx_urbs_free); } list_for_each_safe(tmp, tmp2, &info->rx_urb_q) list_move(tmp, &info->rx_urbs_free); - list_for_each_safe(tmp, tmp2, &info->tx_urbs_submitted) { wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); urb = wrap->urb; + list_del(tmp); + spin_unlock_irq(&info->lock); usb_kill_urb(urb); - list_move(tmp, &info->tx_urbs_free); + spin_lock_irq(&info->lock); + list_add(tmp, &info->tx_urbs_free); } - spin_unlock_irqrestore(&info->lock, flags); + spin_unlock_irq(&info->lock); + mutex_unlock(&info->deathwarrant); stop_command_port(port->serial); @@ -872,7 +882,7 @@ static int whiteheat_ioctl (struct usb_serial_port *port, struct file * file, un } -static void whiteheat_set_termios (struct usb_serial_port *port, struct ktermios *old_termios) +static void whiteheat_set_termios(struct usb_serial_port *port, struct ktermios *old_termios) { dbg("%s -port %d", __FUNCTION__, port->number); @@ -881,15 +891,6 @@ static void whiteheat_set_termios (struct usb_serial_port *port, struct ktermios goto exit; } - /* check that they really want us to change something */ - if (old_termios) { - if ((port->tty->termios->c_cflag == old_termios->c_cflag) && - (port->tty->termios->c_iflag == old_termios->c_iflag)) { - dbg("%s - nothing to change...", __FUNCTION__); - goto exit; - } - } - firm_setup_port(port); exit: @@ -920,7 +921,7 @@ static int whiteheat_chars_in_buffer(struct usb_serial_port *port) spin_unlock_irqrestore(&info->lock, flags); dbg ("%s - returns %d", __FUNCTION__, chars); - return (chars); + return chars; } @@ -962,54 +963,57 @@ static void whiteheat_unthrottle (struct usb_serial_port *port) /***************************************************************************** * Connect Tech's White Heat callback routines *****************************************************************************/ -static void command_port_write_callback (struct urb *urb) +static void command_port_write_callback(struct urb *urb) { + int status = urb->status; + dbg("%s", __FUNCTION__); - if (urb->status) { - dbg ("nonzero urb status: %d", urb->status); + if (status) { + dbg("nonzero urb status: %d", status); return; } } -static void command_port_read_callback (struct urb *urb) +static void command_port_read_callback(struct urb *urb) { struct usb_serial_port *command_port = (struct usb_serial_port *)urb->context; struct whiteheat_command_private *command_info; + int status = urb->status; unsigned char *data = urb->transfer_buffer; int result; - unsigned long flags; dbg("%s", __FUNCTION__); - if (urb->status) { - dbg("%s - nonzero urb status: %d", __FUNCTION__, urb->status); - return; - } - - usb_serial_debug_data(debug, &command_port->dev, __FUNCTION__, urb->actual_length, data); - command_info = usb_get_serial_port_data(command_port); if (!command_info) { dbg ("%s - command_info is NULL, exiting.", __FUNCTION__); return; } - spin_lock_irqsave(&command_info->lock, flags); + if (status) { + dbg("%s - nonzero urb status: %d", __FUNCTION__, status); + if (status != -ENOENT) + command_info->command_finished = WHITEHEAT_CMD_FAILURE; + wake_up(&command_info->wait_command); + return; + } + + usb_serial_debug_data(debug, &command_port->dev, __FUNCTION__, urb->actual_length, data); if (data[0] == WHITEHEAT_CMD_COMPLETE) { command_info->command_finished = WHITEHEAT_CMD_COMPLETE; - wake_up_interruptible(&command_info->wait_command); + wake_up(&command_info->wait_command); } else if (data[0] == WHITEHEAT_CMD_FAILURE) { command_info->command_finished = WHITEHEAT_CMD_FAILURE; - wake_up_interruptible(&command_info->wait_command); + wake_up(&command_info->wait_command); } else if (data[0] == WHITEHEAT_EVENT) { /* These are unsolicited reports from the firmware, hence no waiting command to wakeup */ dbg("%s - event received", __FUNCTION__); } else if (data[0] == WHITEHEAT_GET_DTR_RTS) { memcpy(command_info->result_buffer, &data[1], urb->actual_length - 1); command_info->command_finished = WHITEHEAT_CMD_COMPLETE; - wake_up_interruptible(&command_info->wait_command); + wake_up(&command_info->wait_command); } else { dbg("%s - bad reply from firmware", __FUNCTION__); } @@ -1017,7 +1021,6 @@ static void command_port_read_callback (struct urb *urb) /* Continue trying to always read */ command_port->read_urb->dev = command_port->serial->dev; result = usb_submit_urb(command_port->read_urb, GFP_ATOMIC); - spin_unlock_irqrestore(&command_info->lock, flags); if (result) dbg("%s - failed resubmitting read urb, error %d", __FUNCTION__, result); } @@ -1029,6 +1032,7 @@ static void whiteheat_read_callback(struct urb *urb) struct whiteheat_urb_wrap *wrap; unsigned char *data = urb->transfer_buffer; struct whiteheat_private *info = usb_get_serial_port_data(port); + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); @@ -1042,8 +1046,9 @@ static void whiteheat_read_callback(struct urb *urb) list_del(&wrap->list); spin_unlock(&info->lock); - if (urb->status) { - dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero read bulk status received: %d", + __FUNCTION__, status); spin_lock(&info->lock); list_add(&wrap->list, &info->rx_urbs_free); spin_unlock(&info->lock); @@ -1070,6 +1075,7 @@ static void whiteheat_write_callback(struct urb *urb) struct usb_serial_port *port = (struct usb_serial_port *)urb->context; struct whiteheat_private *info = usb_get_serial_port_data(port); struct whiteheat_urb_wrap *wrap; + int status = urb->status; dbg("%s - port %d", __FUNCTION__, port->number); @@ -1083,8 +1089,9 @@ static void whiteheat_write_callback(struct urb *urb) list_move(&wrap->list, &info->tx_urbs_free); spin_unlock(&info->lock); - if (urb->status) { - dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero write bulk status received: %d", + __FUNCTION__, status); return; } @@ -1095,20 +1102,20 @@ static void whiteheat_write_callback(struct urb *urb) /***************************************************************************** * Connect Tech's White Heat firmware interface *****************************************************************************/ -static int firm_send_command (struct usb_serial_port *port, __u8 command, __u8 *data, __u8 datasize) +static int firm_send_command(struct usb_serial_port *port, __u8 command, __u8 *data, __u8 datasize) { struct usb_serial_port *command_port; struct whiteheat_command_private *command_info; struct whiteheat_private *info; __u8 *transfer_buffer; int retval = 0; - unsigned long flags; + int t; dbg("%s - command %d", __FUNCTION__, command); command_port = port->serial->port[COMMAND_PORT]; command_info = usb_get_serial_port_data(command_port); - spin_lock_irqsave(&command_info->lock, flags); + mutex_lock(&command_info->mutex); command_info->command_finished = false; transfer_buffer = (__u8 *)command_port->write_urb->transfer_buffer; @@ -1116,18 +1123,17 @@ static int firm_send_command (struct usb_serial_port *port, __u8 command, __u8 * memcpy (&transfer_buffer[1], data, datasize); command_port->write_urb->transfer_buffer_length = datasize + 1; command_port->write_urb->dev = port->serial->dev; - retval = usb_submit_urb (command_port->write_urb, GFP_KERNEL); + retval = usb_submit_urb (command_port->write_urb, GFP_NOIO); if (retval) { dbg("%s - submit urb failed", __FUNCTION__); goto exit; } - spin_unlock_irqrestore(&command_info->lock, flags); /* wait for the command to complete */ - wait_event_interruptible_timeout(command_info->wait_command, + t = wait_event_timeout(command_info->wait_command, (bool)command_info->command_finished, COMMAND_TIMEOUT); - - spin_lock_irqsave(&command_info->lock, flags); + if (!t) + usb_kill_urb(command_port->write_urb); if (command_info->command_finished == false) { dbg("%s - command timed out.", __FUNCTION__); @@ -1152,7 +1158,7 @@ static int firm_send_command (struct usb_serial_port *port, __u8 command, __u8 * } exit: - spin_unlock_irqrestore(&command_info->lock, flags); + mutex_unlock(&command_info->mutex); return retval; } @@ -1305,12 +1311,11 @@ static int start_command_port(struct usb_serial *serial) { struct usb_serial_port *command_port; struct whiteheat_command_private *command_info; - unsigned long flags; int retval = 0; command_port = serial->port[COMMAND_PORT]; command_info = usb_get_serial_port_data(command_port); - spin_lock_irqsave(&command_info->lock, flags); + mutex_lock(&command_info->mutex); if (!command_info->port_running) { /* Work around HCD bugs */ usb_clear_halt(serial->dev, command_port->read_urb->pipe); @@ -1325,7 +1330,7 @@ static int start_command_port(struct usb_serial *serial) command_info->port_running++; exit: - spin_unlock_irqrestore(&command_info->lock, flags); + mutex_unlock(&command_info->mutex); return retval; } @@ -1334,15 +1339,14 @@ static void stop_command_port(struct usb_serial *serial) { struct usb_serial_port *command_port; struct whiteheat_command_private *command_info; - unsigned long flags; command_port = serial->port[COMMAND_PORT]; command_info = usb_get_serial_port_data(command_port); - spin_lock_irqsave(&command_info->lock, flags); + mutex_lock(&command_info->mutex); command_info->port_running--; if (!command_info->port_running) usb_kill_urb(command_port->read_urb); - spin_unlock_irqrestore(&command_info->lock, flags); + mutex_unlock(&command_info->mutex); } @@ -1363,17 +1367,23 @@ static int start_port_read(struct usb_serial_port *port) wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); urb = wrap->urb; urb->dev = port->serial->dev; + spin_unlock_irqrestore(&info->lock, flags); retval = usb_submit_urb(urb, GFP_KERNEL); if (retval) { + spin_lock_irqsave(&info->lock, flags); list_add(tmp, &info->rx_urbs_free); list_for_each_safe(tmp, tmp2, &info->rx_urbs_submitted) { wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); urb = wrap->urb; + list_del(tmp); + spin_unlock_irqrestore(&info->lock, flags); usb_kill_urb(urb); - list_move(tmp, &info->rx_urbs_free); + spin_lock_irqsave(&info->lock, flags); + list_add(tmp, &info->rx_urbs_free); } break; } + spin_lock_irqsave(&info->lock, flags); list_add(tmp, &info->rx_urbs_submitted); } diff --git a/drivers/usb/storage/dpcm.c b/drivers/usb/storage/dpcm.c index 1628cb258562..9a410b5a6e5b 100644 --- a/drivers/usb/storage/dpcm.c +++ b/drivers/usb/storage/dpcm.c @@ -46,43 +46,43 @@ */ int dpcm_transport(struct scsi_cmnd *srb, struct us_data *us) { - int ret; + int ret; - if(srb == NULL) - return USB_STOR_TRANSPORT_ERROR; + if (srb == NULL) + return USB_STOR_TRANSPORT_ERROR; - US_DEBUGP("dpcm_transport: LUN=%d\n", srb->device->lun); + US_DEBUGP("dpcm_transport: LUN=%d\n", srb->device->lun); - switch(srb->device->lun) { - case 0: + switch (srb->device->lun) { + case 0: - /* - * LUN 0 corresponds to the CompactFlash card reader. - */ - ret = usb_stor_CB_transport(srb, us); - break; + /* + * LUN 0 corresponds to the CompactFlash card reader. + */ + ret = usb_stor_CB_transport(srb, us); + break; #ifdef CONFIG_USB_STORAGE_SDDR09 - case 1: + case 1: - /* - * LUN 1 corresponds to the SmartMedia card reader. - */ + /* + * LUN 1 corresponds to the SmartMedia card reader. + */ - /* - * Set the LUN to 0 (just in case). - */ - srb->device->lun = 0; us->srb->device->lun = 0; - ret = sddr09_transport(srb, us); - srb->device->lun = 1; us->srb->device->lun = 1; - break; + /* + * Set the LUN to 0 (just in case). + */ + srb->device->lun = 0; us->srb->device->lun = 0; + ret = sddr09_transport(srb, us); + srb->device->lun = 1; us->srb->device->lun = 1; + break; #endif - default: - US_DEBUGP("dpcm_transport: Invalid LUN %d\n", srb->device->lun); - ret = USB_STOR_TRANSPORT_ERROR; - break; - } - return ret; + default: + US_DEBUGP("dpcm_transport: Invalid LUN %d\n", srb->device->lun); + ret = USB_STOR_TRANSPORT_ERROR; + break; + } + return ret; } diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c index d35369392fed..dfd42fe9e5f0 100644 --- a/drivers/usb/storage/onetouch.c +++ b/drivers/usb/storage/onetouch.c @@ -57,9 +57,10 @@ static void usb_onetouch_irq(struct urb *urb) struct usb_onetouch *onetouch = urb->context; signed char *data = onetouch->data; struct input_dev *dev = onetouch->dev; - int status; + int status = urb->status; + int retval; - switch (urb->status) { + switch (status) { case 0: /* success */ break; case -ECONNRESET: /* unlink */ @@ -75,11 +76,11 @@ static void usb_onetouch_irq(struct urb *urb) input_sync(dev); resubmit: - status = usb_submit_urb (urb, GFP_ATOMIC); - if (status) - err ("can't resubmit intr, %s-%s/input0, status %d", + retval = usb_submit_urb (urb, GFP_ATOMIC); + if (retval) + err ("can't resubmit intr, %s-%s/input0, retval %d", onetouch->udev->bus->bus_name, - onetouch->udev->devpath, status); + onetouch->udev->devpath, retval); } static int usb_onetouch_open(struct input_dev *dev) diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index e227f64d5641..1ba19eaa1970 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -321,10 +321,14 @@ void usb_stor_report_device_reset(struct us_data *us) /* Report a driver-initiated bus reset to the SCSI layer. * Calling this for a SCSI-initiated reset is unnecessary but harmless. - * The caller must own the SCSI host lock. */ + * The caller must not own the SCSI host lock. */ void usb_stor_report_bus_reset(struct us_data *us) { - scsi_report_bus_reset(us_to_host(us), 0); + struct Scsi_Host *host = us_to_host(us); + + scsi_lock(host); + scsi_report_bus_reset(host, 0); + scsi_unlock(host); } /*********************************************************************** diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 54979c239c63..c6b78ba815ea 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -50,10 +50,10 @@ /* patch submitted by Vivian Bregier <Vivian.Bregier@imag.fr> */ UNUSUAL_DEV( 0x03eb, 0x2002, 0x0100, 0x0100, - "ATMEL", - "SND1 Storage", - US_SC_DEVICE, US_PR_DEVICE, NULL, - US_FL_IGNORE_RESIDUE), + "ATMEL", + "SND1 Storage", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_IGNORE_RESIDUE), /* modified by Tobias Lorenz <tobias.lorenz@gmx.net> */ UNUSUAL_DEV( 0x03ee, 0x6901, 0x0000, 0x0200, @@ -69,18 +69,18 @@ UNUSUAL_DEV( 0x03ee, 0x6906, 0x0003, 0x0003, US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_IGNORE_RESIDUE ), -UNUSUAL_DEV( 0x03f0, 0x0107, 0x0200, 0x0200, +UNUSUAL_DEV( 0x03f0, 0x0107, 0x0200, 0x0200, "HP", "CD-Writer+", - US_SC_8070, US_PR_CB, NULL, 0), + US_SC_8070, US_PR_CB, NULL, 0), #ifdef CONFIG_USB_STORAGE_USBAT -UNUSUAL_DEV( 0x03f0, 0x0207, 0x0001, 0x0001, +UNUSUAL_DEV( 0x03f0, 0x0207, 0x0001, 0x0001, "HP", "CD-Writer+ 8200e", US_SC_8070, US_PR_USBAT, init_usbat_cd, 0), -UNUSUAL_DEV( 0x03f0, 0x0307, 0x0001, 0x0001, +UNUSUAL_DEV( 0x03f0, 0x0307, 0x0001, 0x0001, "HP", "CD-Writer+ CD-4e", US_SC_8070, US_PR_USBAT, init_usbat_cd, 0), @@ -115,10 +115,10 @@ UNUSUAL_DEV( 0x0411, 0x001c, 0x0113, 0x0113, /* Submitted by Ernestas Vaiciukevicius <ernisv@gmail.com> */ UNUSUAL_DEV( 0x0419, 0x0100, 0x0100, 0x0100, - "Samsung Info. Systems America, Inc.", - "MP3 Player", - US_SC_DEVICE, US_PR_DEVICE, NULL, - US_FL_IGNORE_RESIDUE ), + "Samsung Info. Systems America, Inc.", + "MP3 Player", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_IGNORE_RESIDUE ), /* Reported by Orgad Shaneh <orgads@gmail.com> */ UNUSUAL_DEV( 0x0419, 0xaace, 0x0100, 0x0100, @@ -256,10 +256,10 @@ UNUSUAL_DEV( 0x0457, 0x0150, 0x0100, 0x0100, * the revision to my model only */ UNUSUAL_DEV( 0x0457, 0x0151, 0x0100, 0x0100, - "USB 2.0", - "Flash Disk", - US_SC_DEVICE, US_PR_DEVICE, NULL, - US_FL_NOT_LOCKABLE ), + "USB 2.0", + "Flash Disk", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_NOT_LOCKABLE ), #ifdef CONFIG_USB_STORAGE_KARMA UNUSUAL_DEV( 0x045a, 0x5210, 0x0101, 0x0101, @@ -313,6 +313,20 @@ UNUSUAL_DEV( 0x04b0, 0x0301, 0x0010, 0x0010, US_SC_DEVICE, US_PR_DEVICE,NULL, US_FL_NOT_LOCKABLE ), +/* Reported by Stefan de Konink <skinkie@xs4all.nl> */ +UNUSUAL_DEV( 0x04b0, 0x0401, 0x0200, 0x0200, + "NIKON", + "NIKON DSC D100", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_FIX_CAPACITY), + +/* Reported by Milinevsky Dmitry <niam.niam@gmail.com> */ +UNUSUAL_DEV( 0x04b0, 0x0409, 0x0100, 0x0100, + "NIKON", + "NIKON DSC D50", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_FIX_CAPACITY), + /* Reported by Andreas Bockhold <andreas@bockionline.de> */ UNUSUAL_DEV( 0x04b0, 0x0405, 0x0100, 0x0100, "NIKON", @@ -328,12 +342,19 @@ UNUSUAL_DEV( 0x04b0, 0x040d, 0x0100, 0x0100, US_FL_FIX_CAPACITY), /* Reported by Emil Larsson <emil@swip.net> */ -UNUSUAL_DEV( 0x04b0, 0x0411, 0x0100, 0x0100, +UNUSUAL_DEV( 0x04b0, 0x0411, 0x0100, 0x0101, "NIKON", "NIKON DSC D80", US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_FIX_CAPACITY), +/* Reported by Ortwin Glueck <odi@odi.ch> */ +UNUSUAL_DEV( 0x04b0, 0x0413, 0x0110, 0x0110, + "NIKON", + "NIKON DSC D40", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_FIX_CAPACITY), + /* BENQ DC5330 * Reported by Manuel Fombuena <mfombuena@ya.com> and * Frank Copeland <fjc@thingy.apana.org.au> */ @@ -408,19 +429,19 @@ UNUSUAL_DEV( 0x04da, 0x2373, 0x0000, 0x9999, /* Most of the following entries were developed with the help of * Shuttle/SCM directly. */ -UNUSUAL_DEV( 0x04e6, 0x0001, 0x0200, 0x0200, +UNUSUAL_DEV( 0x04e6, 0x0001, 0x0200, 0x0200, "Matshita", "LS-120", US_SC_8020, US_PR_CB, NULL, 0), -UNUSUAL_DEV( 0x04e6, 0x0002, 0x0100, 0x0100, +UNUSUAL_DEV( 0x04e6, 0x0002, 0x0100, 0x0100, "Shuttle", "eUSCSI Bridge", US_SC_DEVICE, US_PR_DEVICE, usb_stor_euscsi_init, - US_FL_SCM_MULT_TARG ), + US_FL_SCM_MULT_TARG ), #ifdef CONFIG_USB_STORAGE_SDDR09 -UNUSUAL_DEV( 0x04e6, 0x0003, 0x0000, 0x9999, +UNUSUAL_DEV( 0x04e6, 0x0003, 0x0000, 0x9999, "Sandisk", "ImageMate SDDR09", US_SC_SCSI, US_PR_EUSB_SDDR09, usb_stor_sddr09_init, @@ -431,52 +452,52 @@ UNUSUAL_DEV( 0x04e6, 0x0005, 0x0100, 0x0208, "SCM Microsystems", "eUSB SmartMedia / CompactFlash Adapter", US_SC_SCSI, US_PR_DPCM_USB, usb_stor_sddr09_dpcm_init, - 0), + 0), #endif /* Reported by Markus Demleitner <msdemlei@cl.uni-heidelberg.de> */ -UNUSUAL_DEV( 0x04e6, 0x0006, 0x0100, 0x0100, +UNUSUAL_DEV( 0x04e6, 0x0006, 0x0100, 0x0100, "SCM Microsystems Inc.", "eUSB MMC Adapter", - US_SC_SCSI, US_PR_CB, NULL, - US_FL_SINGLE_LUN), + US_SC_SCSI, US_PR_CB, NULL, + US_FL_SINGLE_LUN), /* Reported by Daniel Nouri <dpunktnpunkt@web.de> */ -UNUSUAL_DEV( 0x04e6, 0x0006, 0x0205, 0x0205, +UNUSUAL_DEV( 0x04e6, 0x0006, 0x0205, 0x0205, "Shuttle", "eUSB MMC Adapter", - US_SC_SCSI, US_PR_DEVICE, NULL, - US_FL_SINGLE_LUN), + US_SC_SCSI, US_PR_DEVICE, NULL, + US_FL_SINGLE_LUN), -UNUSUAL_DEV( 0x04e6, 0x0007, 0x0100, 0x0200, +UNUSUAL_DEV( 0x04e6, 0x0007, 0x0100, 0x0200, "Sony", "Hifd", - US_SC_SCSI, US_PR_CB, NULL, - US_FL_SINGLE_LUN), + US_SC_SCSI, US_PR_CB, NULL, + US_FL_SINGLE_LUN), -UNUSUAL_DEV( 0x04e6, 0x0009, 0x0200, 0x0200, +UNUSUAL_DEV( 0x04e6, 0x0009, 0x0200, 0x0200, "Shuttle", "eUSB ATA/ATAPI Adapter", US_SC_8020, US_PR_CB, NULL, 0), -UNUSUAL_DEV( 0x04e6, 0x000a, 0x0200, 0x0200, +UNUSUAL_DEV( 0x04e6, 0x000a, 0x0200, 0x0200, "Shuttle", "eUSB CompactFlash Adapter", US_SC_8020, US_PR_CB, NULL, 0), -UNUSUAL_DEV( 0x04e6, 0x000B, 0x0100, 0x0100, +UNUSUAL_DEV( 0x04e6, 0x000B, 0x0100, 0x0100, "Shuttle", "eUSCSI Bridge", - US_SC_SCSI, US_PR_BULK, usb_stor_euscsi_init, + US_SC_SCSI, US_PR_BULK, usb_stor_euscsi_init, US_FL_SCM_MULT_TARG ), -UNUSUAL_DEV( 0x04e6, 0x000C, 0x0100, 0x0100, +UNUSUAL_DEV( 0x04e6, 0x000C, 0x0100, 0x0100, "Shuttle", "eUSCSI Bridge", - US_SC_SCSI, US_PR_BULK, usb_stor_euscsi_init, - US_FL_SCM_MULT_TARG ), + US_SC_SCSI, US_PR_BULK, usb_stor_euscsi_init, + US_FL_SCM_MULT_TARG ), -UNUSUAL_DEV( 0x04e6, 0x0101, 0x0200, 0x0200, +UNUSUAL_DEV( 0x04e6, 0x0101, 0x0200, 0x0200, "Shuttle", "CD-RW Device", US_SC_8020, US_PR_CB, NULL, 0), @@ -556,9 +577,9 @@ UNUSUAL_DEV( 0x052b, 0x1911, 0x0100, 0x0100, US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_IGNORE_RESIDUE ), -UNUSUAL_DEV( 0x054c, 0x0010, 0x0106, 0x0450, +UNUSUAL_DEV( 0x054c, 0x0010, 0x0106, 0x0450, "Sony", - "DSC-S30/S70/S75/505V/F505/F707/F717/P8", + "DSC-S30/S70/S75/505V/F505/F707/F717/P8", US_SC_SCSI, US_PR_DEVICE, NULL, US_FL_SINGLE_LUN | US_FL_NOT_LOCKABLE | US_FL_NO_WP_DETECT ), @@ -572,7 +593,7 @@ UNUSUAL_DEV( 0x054c, 0x0010, 0x0500, 0x0610, /* Reported by wim@geeks.nl */ -UNUSUAL_DEV( 0x054c, 0x0025, 0x0100, 0x0100, +UNUSUAL_DEV( 0x054c, 0x0025, 0x0100, 0x0100, "Sony", "Memorystick NW-MS7", US_SC_DEVICE, US_PR_DEVICE, NULL, @@ -593,21 +614,21 @@ UNUSUAL_DEV( 0x054c, 0x002c, 0x0501, 0x2000, US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_SINGLE_LUN ), -UNUSUAL_DEV( 0x054c, 0x002d, 0x0100, 0x0100, +UNUSUAL_DEV( 0x054c, 0x002d, 0x0100, 0x0100, "Sony", "Memorystick MSAC-US1", US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_SINGLE_LUN ), /* Submitted by Klaus Mueller <k.mueller@intershop.de> */ -UNUSUAL_DEV( 0x054c, 0x002e, 0x0106, 0x0310, +UNUSUAL_DEV( 0x054c, 0x002e, 0x0106, 0x0310, "Sony", "Handycam", US_SC_SCSI, US_PR_DEVICE, NULL, US_FL_SINGLE_LUN ), /* Submitted by Rajesh Kumble Nayak <nayak@obs-nice.fr> */ -UNUSUAL_DEV( 0x054c, 0x002e, 0x0500, 0x0500, +UNUSUAL_DEV( 0x054c, 0x002e, 0x0500, 0x0500, "Sony", "Handycam HC-85", US_SC_UFI, US_PR_DEVICE, NULL, @@ -648,26 +669,26 @@ UNUSUAL_DEV( 0x054c, 0x016a, 0x0000, 0x9999, /* Submitted by Frank Engel <frankie@cse.unsw.edu.au> */ UNUSUAL_DEV( 0x054c, 0x0099, 0x0000, 0x9999, - "Sony", - "PEG Mass Storage", - US_SC_DEVICE, US_PR_DEVICE, NULL, - US_FL_FIX_INQUIRY ), + "Sony", + "PEG Mass Storage", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_FIX_INQUIRY ), /* floppy reports multiple luns */ UNUSUAL_DEV( 0x055d, 0x2020, 0x0000, 0x0210, - "SAMSUNG", - "SFD-321U [FW 0C]", - US_SC_DEVICE, US_PR_DEVICE, NULL, - US_FL_SINGLE_LUN ), + "SAMSUNG", + "SFD-321U [FW 0C]", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_SINGLE_LUN ), -UNUSUAL_DEV( 0x057b, 0x0000, 0x0000, 0x0299, +UNUSUAL_DEV( 0x057b, 0x0000, 0x0000, 0x0299, "Y-E Data", "Flashbuster-U", US_SC_DEVICE, US_PR_CB, NULL, US_FL_SINGLE_LUN), -UNUSUAL_DEV( 0x057b, 0x0000, 0x0300, 0x9999, +UNUSUAL_DEV( 0x057b, 0x0000, 0x0300, 0x9999, "Y-E Data", "Flashbuster-U", US_SC_DEVICE, US_PR_DEVICE, NULL, @@ -677,7 +698,7 @@ UNUSUAL_DEV( 0x057b, 0x0000, 0x0300, 0x9999, * This entry is needed only because the device reports * bInterfaceClass = 0xff (vendor-specific) */ -UNUSUAL_DEV( 0x057b, 0x0022, 0x0000, 0x9999, +UNUSUAL_DEV( 0x057b, 0x0022, 0x0000, 0x9999, "Y-E Data", "Silicon Media R/W", US_SC_DEVICE, US_PR_DEVICE, NULL, 0), @@ -825,13 +846,13 @@ UNUSUAL_DEV( 0x0636, 0x0003, 0x0000, 0x9999, US_SC_SCSI, US_PR_BULK, NULL, US_FL_FIX_INQUIRY ), -UNUSUAL_DEV( 0x0644, 0x0000, 0x0100, 0x0100, +UNUSUAL_DEV( 0x0644, 0x0000, 0x0100, 0x0100, "TEAC", "Floppy Drive", - US_SC_UFI, US_PR_CB, NULL, 0 ), + US_SC_UFI, US_PR_CB, NULL, 0 ), #ifdef CONFIG_USB_STORAGE_SDDR09 -UNUSUAL_DEV( 0x066b, 0x0105, 0x0100, 0x0100, +UNUSUAL_DEV( 0x066b, 0x0105, 0x0100, 0x0100, "Olympus", "Camedia MAUSB-2", US_SC_SCSI, US_PR_EUSB_SDDR09, usb_stor_sddr09_init, @@ -867,14 +888,14 @@ UNUSUAL_DEV( 0x0686, 0x4011, 0x0001, 0x0001, /* Reported by Miguel A. Fosas <amn3s1a@ono.com> */ UNUSUAL_DEV( 0x0686, 0x4017, 0x0001, 0x0001, - "Minolta", - "DIMAGE E223", - US_SC_SCSI, US_PR_DEVICE, NULL, 0 ), + "Minolta", + "DIMAGE E223", + US_SC_SCSI, US_PR_DEVICE, NULL, 0 ), UNUSUAL_DEV( 0x0693, 0x0005, 0x0100, 0x0100, "Hagiwara", "Flashgate", - US_SC_SCSI, US_PR_BULK, NULL, 0 ), + US_SC_SCSI, US_PR_BULK, NULL, 0 ), /* Reported by David Hamilton <niftimusmaximus@lycos.com> */ UNUSUAL_DEV( 0x069b, 0x3004, 0x0001, 0x0001, @@ -883,6 +904,22 @@ UNUSUAL_DEV( 0x069b, 0x3004, 0x0001, 0x0001, US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_FIX_CAPACITY ), +/* Reported by Massimiliano Ghilardi <massimiliano.ghilardi@gmail.com> + * This USB MP3/AVI player device fails and disconnects if more than 128 + * sectors (64kB) are read/written in a single command, and may be present + * at least in the following products: + * "Magnex Digital Video Panel DVP 1800" + * "MP4 AIGO 4GB SLOT SD" + * "Teclast TL-C260 MP3" + * "i.Meizu PMP MP3/MP4" + * "Speed MV8 MP4 Audio Player" + */ +UNUSUAL_DEV( 0x071b, 0x3203, 0x0100, 0x0100, + "RockChip", + "ROCK MP3", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_MAX_SECTORS_64), + /* Reported by Olivier Blondeau <zeitoun@gmail.com> */ UNUSUAL_DEV( 0x0727, 0x0306, 0x0100, 0x0100, "ATMEL", @@ -918,7 +955,7 @@ UNUSUAL_DEV( 0x0781, 0x0100, 0x0100, 0x0100, US_FL_SINGLE_LUN ), #ifdef CONFIG_USB_STORAGE_SDDR09 -UNUSUAL_DEV( 0x0781, 0x0200, 0x0000, 0x9999, +UNUSUAL_DEV( 0x0781, 0x0200, 0x0000, 0x9999, "Sandisk", "ImageMate SDDR-09", US_SC_SCSI, US_PR_EUSB_SDDR09, usb_stor_sddr09_init, @@ -939,17 +976,17 @@ UNUSUAL_DEV( 0x07ab, 0xfccd, 0x0000, 0x9999, US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_FIX_CAPACITY), -UNUSUAL_DEV( 0x07af, 0x0004, 0x0100, 0x0133, +UNUSUAL_DEV( 0x07af, 0x0004, 0x0100, 0x0133, "Microtech", "USB-SCSI-DB25", US_SC_SCSI, US_PR_BULK, usb_stor_euscsi_init, US_FL_SCM_MULT_TARG ), -UNUSUAL_DEV( 0x07af, 0x0005, 0x0100, 0x0100, +UNUSUAL_DEV( 0x07af, 0x0005, 0x0100, 0x0100, "Microtech", "USB-SCSI-HD50", US_SC_DEVICE, US_PR_DEVICE, usb_stor_euscsi_init, - US_FL_SCM_MULT_TARG ), + US_FL_SCM_MULT_TARG ), #ifdef CONFIG_USB_STORAGE_DPCM UNUSUAL_DEV( 0x07af, 0x0006, 0x0100, 0x0100, @@ -1053,10 +1090,10 @@ UNUSUAL_DEV( 0x07c4, 0xa109, 0x0000, 0xffff, * as "DualSlot CompactFlash(TM) & MStick Drive USB" */ UNUSUAL_DEV( 0x07c4, 0xa10b, 0x0000, 0xffff, - "DataFab Systems Inc.", - "USB CF+MS", - US_SC_SCSI, US_PR_DATAFAB, NULL, - 0 ), + "DataFab Systems Inc.", + "USB CF+MS", + US_SC_SCSI, US_PR_DATAFAB, NULL, + 0 ), #endif @@ -1119,10 +1156,10 @@ UNUSUAL_DEV( 0x08bd, 0x1100, 0x0000, 0x0000, * US_FL_IGNORE_RESIDUE Needed */ UNUSUAL_DEV( 0x08ca, 0x3103, 0x0100, 0x0100, - "AIPTEK", - "Aiptek USB Keychain MP3 Player", - US_SC_DEVICE, US_PR_DEVICE, NULL, - US_FL_IGNORE_RESIDUE), + "AIPTEK", + "Aiptek USB Keychain MP3 Player", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_IGNORE_RESIDUE), /* Entry needed for flags. Moreover, all devices with this ID use * bulk-only transport, but _some_ falsely report Control/Bulk instead. @@ -1166,26 +1203,26 @@ UNUSUAL_DEV( 0x090c, 0x1132, 0x0000, 0xffff, * Submitted by James Courtier-Dutton <James@superbug.demon.co.uk> */ UNUSUAL_DEV( 0x0a17, 0x0004, 0x1000, 0x1000, - "Pentax", - "Optio 2/3/400", - US_SC_DEVICE, US_PR_DEVICE, NULL, - US_FL_FIX_INQUIRY ), + "Pentax", + "Optio 2/3/400", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_FIX_INQUIRY ), /* Submitted by Per Winkvist <per.winkvist@uk.com> */ UNUSUAL_DEV( 0x0a17, 0x006, 0x0000, 0xffff, - "Pentax", - "Optio S/S4", - US_SC_DEVICE, US_PR_DEVICE, NULL, - US_FL_FIX_INQUIRY ), + "Pentax", + "Optio S/S4", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_FIX_INQUIRY ), /* These are virtual windows driver CDs, which the zd1211rw driver * automatically converts into WLAN devices. */ UNUSUAL_DEV( 0x0ace, 0x2011, 0x0101, 0x0101, - "ZyXEL", - "G-220F USB-WLAN Install", - US_SC_DEVICE, US_PR_DEVICE, NULL, - US_FL_IGNORE_DEVICE ), + "ZyXEL", + "G-220F USB-WLAN Install", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_IGNORE_DEVICE ), UNUSUAL_DEV( 0x0ace, 0x20ff, 0x0101, 0x0101, "SiteCom", @@ -1211,17 +1248,17 @@ UNUSUAL_DEV( 0x0bf6, 0xa001, 0x0100, 0x0110, #ifdef CONFIG_USB_STORAGE_DATAFAB UNUSUAL_DEV( 0x0c0b, 0xa109, 0x0000, 0xffff, - "Acomdata", - "CF", - US_SC_SCSI, US_PR_DATAFAB, NULL, - US_FL_SINGLE_LUN ), + "Acomdata", + "CF", + US_SC_SCSI, US_PR_DATAFAB, NULL, + US_FL_SINGLE_LUN ), #endif #ifdef CONFIG_USB_STORAGE_SDDR55 UNUSUAL_DEV( 0x0c0b, 0xa109, 0x0000, 0xffff, - "Acomdata", - "SM", - US_SC_SCSI, US_PR_SDDR55, NULL, - US_FL_SINGLE_LUN ), + "Acomdata", + "SM", + US_SC_SCSI, US_PR_SDDR55, NULL, + US_FL_SINGLE_LUN ), #endif /* Submitted by: Nick Sillik <n.sillik@temple.edu> @@ -1350,6 +1387,20 @@ UNUSUAL_DEV( 0x0f19, 0x0105, 0x0100, 0x0100, US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_IGNORE_RESIDUE ), +/* Jeremy Katz <katzj@redhat.com>: + * The Blackberry Pearl can run in two modes; a usb-storage only mode + * and a mode that allows access via mass storage and to its database. + * The berry_charge module will set the device to dual mode and thus we + * should ignore its native mode if that module is built + */ +#ifdef CONFIG_USB_BERRY_CHARGE +UNUSUAL_DEV( 0x0fca, 0x0006, 0x0001, 0x0001, + "RIM", + "Blackberry Pearl", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_IGNORE_DEVICE ), +#endif + /* Reported by Michael Stattmann <michael@stattmann.com> */ UNUSUAL_DEV( 0x0fce, 0xd008, 0x0000, 0x0000, "Sony Ericsson", @@ -1365,6 +1416,13 @@ UNUSUAL_DEV( 0x0fce, 0xe030, 0x0000, 0x0000, US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_FIX_CAPACITY | US_FL_IGNORE_RESIDUE ), +/* Reported by Ricardo Barberis <ricardo@dattatec.com> */ +UNUSUAL_DEV( 0x0fce, 0xe092, 0x0000, 0x0000, + "Sony Ericsson", + "P1i", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_IGNORE_RESIDUE ), + /* Reported by Emmanuel Vasilakis <evas@forthnet.gr> */ UNUSUAL_DEV( 0x0fce, 0xe031, 0x0000, 0x0000, "Sony Ericsson", @@ -1384,6 +1442,17 @@ UNUSUAL_DEV( 0x1019, 0x0c55, 0x0000, 0x0110, US_SC_DEVICE, US_PR_DEVICE, usb_stor_ucr61s2b_init, 0 ), +/* Reported by Kevin Lloyd <linux@sierrawireless.com> + * Entry is needed for the initializer function override, + * which instructs the device to load as a modem + * device. + */ +UNUSUAL_DEV( 0x1199, 0x0fff, 0x0000, 0x9999, + "Sierra Wireless", + "USB MMC Storage", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_IGNORE_DEVICE), + /* Reported by Jaco Kroon <jaco@kroon.co.za> * The usb-storage module found on the Digitech GNX4 (and supposedly other * devices) misbehaves and causes a bunch of invalid I/O errors. diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c index 8e898e3d861e..59181667066c 100644 --- a/drivers/usb/storage/usb.c +++ b/drivers/usb/storage/usb.c @@ -112,13 +112,6 @@ module_param(delay_use, uint, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(delay_use, "seconds to delay before using a new device"); -/* These are used to make sure the module doesn't unload before all the - * threads have exited. - */ -static atomic_t total_threads = ATOMIC_INIT(0); -static DECLARE_COMPLETION(threads_gone); - - /* * The entries in this table correspond, line for line, * with the entries of us_unusual_dev_list[]. @@ -197,7 +190,6 @@ static int storage_suspend(struct usb_interface *iface, pm_message_t message) US_DEBUGP("%s\n", __FUNCTION__); if (us->suspend_resume_hook) (us->suspend_resume_hook)(us, US_SUSPEND); - iface->dev.power.power_state.event = message.event; /* When runtime PM is working, we'll set a flag to indicate * whether we should autoresume when a SCSI request arrives. */ @@ -215,12 +207,25 @@ static int storage_resume(struct usb_interface *iface) US_DEBUGP("%s\n", __FUNCTION__); if (us->suspend_resume_hook) (us->suspend_resume_hook)(us, US_RESUME); - iface->dev.power.power_state.event = PM_EVENT_ON; mutex_unlock(&us->dev_mutex); return 0; } +static int storage_reset_resume(struct usb_interface *iface) +{ + struct us_data *us = usb_get_intfdata(iface); + + US_DEBUGP("%s\n", __FUNCTION__); + + /* Report the reset to the SCSI core */ + usb_stor_report_bus_reset(us); + + /* FIXME: Notify the subdrivers that they need to reinitialize + * the device */ + return 0; +} + #endif /* CONFIG_PM */ /* @@ -228,7 +233,7 @@ static int storage_resume(struct usb_interface *iface) * a USB port reset, whether from this driver or a different one. */ -static void storage_pre_reset(struct usb_interface *iface) +static int storage_pre_reset(struct usb_interface *iface) { struct us_data *us = usb_get_intfdata(iface); @@ -236,22 +241,23 @@ static void storage_pre_reset(struct usb_interface *iface) /* Make sure no command runs during the reset */ mutex_lock(&us->dev_mutex); + return 0; } -static void storage_post_reset(struct usb_interface *iface) +static int storage_post_reset(struct usb_interface *iface) { struct us_data *us = usb_get_intfdata(iface); US_DEBUGP("%s\n", __FUNCTION__); /* Report the reset to the SCSI core */ - scsi_lock(us_to_host(us)); usb_stor_report_bus_reset(us); - scsi_unlock(us_to_host(us)); /* FIXME: Notify the subdrivers that they need to reinitialize * the device */ + mutex_unlock(&us->dev_mutex); + return 0; } /* @@ -301,8 +307,6 @@ static int usb_stor_control_thread(void * __us) struct us_data *us = (struct us_data *)__us; struct Scsi_Host *host = us_to_host(us); - current->flags |= PF_NOFREEZE; - for(;;) { US_DEBUGP("*** thread sleeping.\n"); if(down_interruptible(&us->sema)) @@ -412,23 +416,15 @@ SkipForAbort: mutex_unlock(&us->dev_mutex); } /* for (;;) */ - scsi_host_put(host); - - /* notify the exit routine that we're actually exiting now - * - * complete()/wait_for_completion() is similar to up()/down(), - * except that complete() is safe in the case where the structure - * is getting deleted in a parallel mode of execution (i.e. just - * after the down() -- that's necessary for the thread-shutdown - * case. - * - * complete_and_exit() goes even further than this -- it is safe in - * the case that the thread of the caller is going away (not just - * the structure) -- this is necessary for the module-remove case. - * This is important in preemption kernels, which transfer the flow - * of execution immediately upon a complete(). - */ - complete_and_exit(&threads_gone, 0); + /* Wait until we are told to stop */ + for (;;) { + set_current_state(TASK_INTERRUPTIBLE); + if (kthread_should_stop()) + break; + schedule(); + } + __set_current_state(TASK_RUNNING); + return 0; } /*********************************************************************** @@ -796,19 +792,13 @@ static int usb_stor_acquire_resources(struct us_data *us) } /* Start up our control thread */ - th = kthread_create(usb_stor_control_thread, us, "usb-storage"); + th = kthread_run(usb_stor_control_thread, us, "usb-storage"); if (IS_ERR(th)) { printk(KERN_WARNING USB_STORAGE "Unable to start control thread\n"); return PTR_ERR(th); } - - /* Take a reference to the host for the control thread and - * count it among all the threads we have launched. Then - * start it up. */ - scsi_host_get(us_to_host(us)); - atomic_inc(&total_threads); - wake_up_process(th); + us->ctl_thread = th; return 0; } @@ -825,6 +815,8 @@ static void usb_stor_release_resources(struct us_data *us) US_DEBUGP("-- sending exit command to thread\n"); set_bit(US_FLIDX_DISCONNECTING, &us->flags); up(&us->sema); + if (us->ctl_thread) + kthread_stop(us->ctl_thread); /* Call the destructor routine, if it exists */ if (us->extra_destructor) { @@ -870,9 +862,6 @@ static void quiesce_and_remove_host(struct us_data *us) usb_stor_stop_transport(us); wake_up(&us->delay_wait); - /* It doesn't matter if the SCSI-scanning thread is still running. - * The thread will exit when it sees the DISCONNECTING flag. */ - /* queuecommand won't accept any new commands and the control * thread won't execute a previously-queued command. If there * is such a command pending, complete it with an error. */ @@ -882,12 +871,16 @@ static void quiesce_and_remove_host(struct us_data *us) scsi_lock(host); us->srb->scsi_done(us->srb); us->srb = NULL; + complete(&us->notify); /* in case of an abort */ scsi_unlock(host); } mutex_unlock(&us->dev_mutex); /* Now we own no commands so it's safe to remove the SCSI host */ scsi_remove_host(host); + + /* Wait for the SCSI-scanning thread to stop */ + wait_for_completion(&us->scanning_done); } /* Second stage of disconnect processing: deallocate all resources */ @@ -909,6 +902,7 @@ static int usb_stor_scan_thread(void * __us) printk(KERN_DEBUG "usb-storage: device found at %d\n", us->pusb_dev->devnum); + set_freezable(); /* Wait for the timeout to expire or for a disconnect */ if (delay_use > 0) { printk(KERN_DEBUG "usb-storage: waiting for device " @@ -937,8 +931,7 @@ retry: /* Should we unbind if no devices were detected? */ } - scsi_host_put(us_to_host(us)); - complete_and_exit(&threads_gone, 0); + complete_and_exit(&us->scanning_done, 0); } @@ -973,6 +966,7 @@ static int storage_probe(struct usb_interface *intf, init_MUTEX_LOCKED(&(us->sema)); init_completion(&(us->notify)); init_waitqueue_head(&us->delay_wait); + init_completion(&us->scanning_done); /* Associate the us_data structure with the USB device */ result = associate_dev(us, intf); @@ -1022,11 +1016,6 @@ static int storage_probe(struct usb_interface *intf, goto BadDevice; } - /* Take a reference to the host for the scanning thread and - * count it among all the threads we have launched. Then - * start it up. */ - scsi_host_get(us_to_host(us)); - atomic_inc(&total_threads); wake_up_process(th); return 0; @@ -1059,6 +1048,7 @@ static struct usb_driver usb_storage_driver = { #ifdef CONFIG_PM .suspend = storage_suspend, .resume = storage_resume, + .reset_resume = storage_reset_resume, #endif .pre_reset = storage_pre_reset, .post_reset = storage_post_reset, @@ -1090,16 +1080,6 @@ static void __exit usb_stor_exit(void) US_DEBUGP("-- calling usb_deregister()\n"); usb_deregister(&usb_storage_driver) ; - /* Don't return until all of our control and scanning threads - * have exited. Since each thread signals threads_gone as its - * last act, we have to call wait_for_completion the right number - * of times. - */ - while (atomic_read(&total_threads) > 0) { - wait_for_completion(&threads_gone); - atomic_dec(&total_threads); - } - usb_usual_clear_present(USB_US_TYPE_STOR); } diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h index 6dac1ffdde86..8d87503e2560 100644 --- a/drivers/usb/storage/usb.h +++ b/drivers/usb/storage/usb.h @@ -144,11 +144,13 @@ struct us_data { unsigned char *sensebuf; /* sense data buffer */ dma_addr_t cr_dma; /* buffer DMA addresses */ dma_addr_t iobuf_dma; + struct task_struct *ctl_thread; /* the control thread */ /* mutual exclusion and synchronization structures */ struct semaphore sema; /* to sleep thread on */ struct completion notify; /* thread begin/end */ wait_queue_head_t delay_wait; /* wait during scan, reset */ + struct completion scanning_done; /* wait for scan thread */ /* subdriver information */ void *extra; /* Any extra data */ diff --git a/drivers/usb/usb-skeleton.c b/drivers/usb/usb-skeleton.c index 8432bf171d2e..8de11deb5d14 100644 --- a/drivers/usb/usb-skeleton.c +++ b/drivers/usb/usb-skeleton.c @@ -34,9 +34,6 @@ static struct usb_device_id skel_table [] = { }; MODULE_DEVICE_TABLE(usb, skel_table); -/* to prevent a race between open and disconnect */ -static DEFINE_MUTEX(skel_open_lock); - /* Get a minor range for your devices from the usb maintainer */ #define USB_SKEL_MINOR_BASE 192 @@ -54,16 +51,21 @@ struct usb_skel { struct usb_device *udev; /* the usb device for this device */ struct usb_interface *interface; /* the interface for this device */ struct semaphore limit_sem; /* limiting the number of writes in progress */ + struct usb_anchor submitted; /* in case we need to retract our submissions */ unsigned char *bulk_in_buffer; /* the buffer to receive data */ size_t bulk_in_size; /* the size of the receive buffer */ __u8 bulk_in_endpointAddr; /* the address of the bulk in endpoint */ __u8 bulk_out_endpointAddr; /* the address of the bulk out endpoint */ + int errors; /* the last request tanked */ + int open_count; /* count the number of openers */ + spinlock_t err_lock; /* lock for errors */ struct kref kref; struct mutex io_mutex; /* synchronize I/O with disconnect */ }; #define to_skel_dev(d) container_of(d, struct usb_skel, kref) static struct usb_driver skel_driver; +static void skel_draw_down(struct usb_skel *dev); static void skel_delete(struct kref *kref) { @@ -83,10 +85,8 @@ static int skel_open(struct inode *inode, struct file *file) subminor = iminor(inode); - mutex_lock(&skel_open_lock); interface = usb_find_interface(&skel_driver, subminor); if (!interface) { - mutex_unlock(&skel_open_lock); err ("%s - error, can't find device for minor %d", __FUNCTION__, subminor); retval = -ENODEV; @@ -95,22 +95,33 @@ static int skel_open(struct inode *inode, struct file *file) dev = usb_get_intfdata(interface); if (!dev) { - mutex_unlock(&skel_open_lock); retval = -ENODEV; goto exit; } /* increment our usage count for the device */ kref_get(&dev->kref); - /* now we can drop the lock */ - mutex_unlock(&skel_open_lock); - /* prevent the device from being autosuspended */ - retval = usb_autopm_get_interface(interface); - if (retval) { + /* lock the device to allow correctly handling errors + * in resumption */ + mutex_lock(&dev->io_mutex); + + if (!dev->open_count++) { + retval = usb_autopm_get_interface(interface); + if (retval) { + dev->open_count--; + mutex_unlock(&dev->io_mutex); + kref_put(&dev->kref, skel_delete); + goto exit; + } + } /* else { //uncomment this block if you want exclusive open + retval = -EBUSY; + dev->open_count--; + mutex_unlock(&dev->io_mutex); kref_put(&dev->kref, skel_delete); goto exit; - } + } */ + /* prevent the device from being autosuspended */ /* save our object in the file's private structure */ file->private_data = dev; @@ -129,7 +140,7 @@ static int skel_release(struct inode *inode, struct file *file) /* allow the device to be autosuspended */ mutex_lock(&dev->io_mutex); - if (dev->interface) + if (!--dev->open_count && dev->interface) usb_autopm_put_interface(dev->interface); mutex_unlock(&dev->io_mutex); @@ -138,6 +149,30 @@ static int skel_release(struct inode *inode, struct file *file) return 0; } +static int skel_flush(struct file *file, fl_owner_t id) +{ + struct usb_skel *dev; + int res; + + dev = (struct usb_skel *)file->private_data; + if (dev == NULL) + return -ENODEV; + + /* wait for io to stop */ + mutex_lock(&dev->io_mutex); + skel_draw_down(dev); + + /* read out errors, leave subsequent opens a clean slate */ + spin_lock_irq(&dev->err_lock); + res = dev->errors ? (dev->errors == -EPIPE ? -EPIPE : -EIO) : 0; + dev->errors = 0; + spin_unlock_irq(&dev->err_lock); + + mutex_unlock(&dev->io_mutex); + + return res; +} + static ssize_t skel_read(struct file *file, char *buffer, size_t count, loff_t *ppos) { struct usb_skel *dev; @@ -179,12 +214,16 @@ static void skel_write_bulk_callback(struct urb *urb) dev = (struct usb_skel *)urb->context; /* sync/async unlink faults aren't errors */ - if (urb->status && - !(urb->status == -ENOENT || - urb->status == -ECONNRESET || - urb->status == -ESHUTDOWN)) { - err("%s - nonzero write bulk status received: %d", - __FUNCTION__, urb->status); + if (urb->status) { + if(!(urb->status == -ENOENT || + urb->status == -ECONNRESET || + urb->status == -ESHUTDOWN)) + err("%s - nonzero write bulk status received: %d", + __FUNCTION__, urb->status); + + spin_lock(&dev->err_lock); + dev->errors = urb->status; + spin_unlock(&dev->err_lock); } /* free up our allocated buffer */ @@ -213,6 +252,17 @@ static ssize_t skel_write(struct file *file, const char *user_buffer, size_t cou goto exit; } + spin_lock_irq(&dev->err_lock); + if ((retval = dev->errors) < 0) { + /* any error is reported once */ + dev->errors = 0; + /* to preserve notifications about reset */ + retval = (retval == -EPIPE) ? retval : -EIO; + } + spin_unlock_irq(&dev->err_lock); + if (retval < 0) + goto error; + /* create a urb, and a buffer for it, and copy the data to the urb */ urb = usb_alloc_urb(0, GFP_KERNEL); if (!urb) { @@ -244,13 +294,14 @@ static ssize_t skel_write(struct file *file, const char *user_buffer, size_t cou usb_sndbulkpipe(dev->udev, dev->bulk_out_endpointAddr), buf, writesize, skel_write_bulk_callback, dev); urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + usb_anchor_urb(urb, &dev->submitted); /* send the data out the bulk port */ retval = usb_submit_urb(urb, GFP_KERNEL); mutex_unlock(&dev->io_mutex); if (retval) { err("%s - failed submitting write urb, error %d", __FUNCTION__, retval); - goto error; + goto error_unanchor; } /* release our reference to this urb, the USB core will eventually free it entirely */ @@ -259,6 +310,8 @@ static ssize_t skel_write(struct file *file, const char *user_buffer, size_t cou return writesize; +error_unanchor: + usb_unanchor_urb(urb); error: if (urb) { usb_buffer_free(dev->udev, writesize, buf, urb->transfer_dma); @@ -276,6 +329,7 @@ static const struct file_operations skel_fops = { .write = skel_write, .open = skel_open, .release = skel_release, + .flush = skel_flush, }; /* @@ -306,6 +360,8 @@ static int skel_probe(struct usb_interface *interface, const struct usb_device_i kref_init(&dev->kref); sema_init(&dev->limit_sem, WRITES_IN_FLIGHT); mutex_init(&dev->io_mutex); + spin_lock_init(&dev->err_lock); + init_usb_anchor(&dev->submitted); dev->udev = usb_get_dev(interface_to_usbdev(interface)); dev->interface = interface; @@ -368,22 +424,18 @@ static void skel_disconnect(struct usb_interface *interface) struct usb_skel *dev; int minor = interface->minor; - /* prevent skel_open() from racing skel_disconnect() */ - mutex_lock(&skel_open_lock); - dev = usb_get_intfdata(interface); usb_set_intfdata(interface, NULL); /* give back our minor */ usb_deregister_dev(interface, &skel_class); - mutex_unlock(&skel_open_lock); /* prevent more I/O from starting */ mutex_lock(&dev->io_mutex); dev->interface = NULL; mutex_unlock(&dev->io_mutex); - + usb_kill_anchored_urbs(&dev->submitted); /* decrement our usage count */ kref_put(&dev->kref, skel_delete); @@ -391,10 +443,59 @@ static void skel_disconnect(struct usb_interface *interface) info("USB Skeleton #%d now disconnected", minor); } +static void skel_draw_down(struct usb_skel *dev) +{ + int time; + + time = usb_wait_anchor_empty_timeout(&dev->submitted, 1000); + if (!time) + usb_kill_anchored_urbs(&dev->submitted); +} + +static int skel_suspend(struct usb_interface *intf, pm_message_t message) +{ + struct usb_skel *dev = usb_get_intfdata(intf); + + if (!dev) + return 0; + skel_draw_down(dev); + return 0; +} + +static int skel_resume (struct usb_interface *intf) +{ + return 0; +} + +static int skel_pre_reset(struct usb_interface *intf) +{ + struct usb_skel *dev = usb_get_intfdata(intf); + + mutex_lock(&dev->io_mutex); + skel_draw_down(dev); + + return 0; +} + +static int skel_post_reset(struct usb_interface *intf) +{ + struct usb_skel *dev = usb_get_intfdata(intf); + + /* we are sure no URBs are active - no locking needed */ + dev->errors = -EPIPE; + mutex_unlock(&dev->io_mutex); + + return 0; +} + static struct usb_driver skel_driver = { .name = "skeleton", .probe = skel_probe, .disconnect = skel_disconnect, + .suspend = skel_suspend, + .resume = skel_resume, + .pre_reset = skel_pre_reset, + .post_reset = skel_post_reset, .id_table = skel_table, .supports_autosuspend = 1, }; |