diff options
Diffstat (limited to 'drivers/usb')
39 files changed, 364 insertions, 822 deletions
diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c index 407a7a6198a2..4a80103675d5 100644 --- a/drivers/usb/class/usblp.c +++ b/drivers/usb/class/usblp.c @@ -445,6 +445,7 @@ static void usblp_cleanup(struct usblp *usblp) kfree(usblp->readbuf); kfree(usblp->device_id_string); kfree(usblp->statusbuf); + usb_put_intf(usblp->intf); kfree(usblp); } @@ -461,10 +462,12 @@ static int usblp_release(struct inode *inode, struct file *file) mutex_lock(&usblp_mutex); usblp->used = 0; - if (usblp->present) { + if (usblp->present) usblp_unlink_urbs(usblp); - usb_autopm_put_interface(usblp->intf); - } else /* finish cleanup from disconnect */ + + usb_autopm_put_interface(usblp->intf); + + if (!usblp->present) /* finish cleanup from disconnect */ usblp_cleanup(usblp); mutex_unlock(&usblp_mutex); return 0; @@ -1105,7 +1108,7 @@ static int usblp_probe(struct usb_interface *intf, init_waitqueue_head(&usblp->wwait); init_usb_anchor(&usblp->urbs); usblp->ifnum = intf->cur_altsetting->desc.bInterfaceNumber; - usblp->intf = intf; + usblp->intf = usb_get_intf(intf); /* Malloc device ID string buffer to the largest expected length, * since we can re-query it on an ioctl and a dynamic string @@ -1194,6 +1197,7 @@ abort: kfree(usblp->readbuf); kfree(usblp->statusbuf); kfree(usblp->device_id_string); + usb_put_intf(usblp->intf); kfree(usblp); abort_ret: return retval; diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c index 7cf34beb50df..51fa614b4079 100644 --- a/drivers/usb/gadget/udc/core.c +++ b/drivers/usb/gadget/udc/core.c @@ -98,6 +98,17 @@ int usb_ep_enable(struct usb_ep *ep) if (ep->enabled) goto out; + /* UDC drivers can't handle endpoints with maxpacket size 0 */ + if (usb_endpoint_maxp(ep->desc) == 0) { + /* + * We should log an error message here, but we can't call + * dev_err() because there's no way to find the gadget + * given only ep. + */ + ret = -EINVAL; + goto out; + } + ret = ep->ops->enable(ep, ep->desc); if (ret) goto out; @@ -1143,7 +1154,7 @@ static int check_pending_gadget_drivers(struct usb_udc *udc) dev_name(&udc->dev)) == 0) { ret = udc_bind_to_driver(udc, driver); if (ret != -EPROBE_DEFER) - list_del(&driver->pending); + list_del_init(&driver->pending); break; } diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c index 8414fac74493..3d499d93c083 100644 --- a/drivers/usb/gadget/udc/dummy_hcd.c +++ b/drivers/usb/gadget/udc/dummy_hcd.c @@ -48,6 +48,7 @@ #define DRIVER_VERSION "02 May 2005" #define POWER_BUDGET 500 /* in mA; use 8 for low-power port testing */ +#define POWER_BUDGET_3 900 /* in mA */ static const char driver_name[] = "dummy_hcd"; static const char driver_desc[] = "USB Host+Gadget Emulator"; @@ -2432,7 +2433,7 @@ static int dummy_start_ss(struct dummy_hcd *dum_hcd) dum_hcd->rh_state = DUMMY_RH_RUNNING; dum_hcd->stream_en_ep = 0; INIT_LIST_HEAD(&dum_hcd->urbp_list); - dummy_hcd_to_hcd(dum_hcd)->power_budget = POWER_BUDGET; + dummy_hcd_to_hcd(dum_hcd)->power_budget = POWER_BUDGET_3; dummy_hcd_to_hcd(dum_hcd)->state = HC_STATE_RUNNING; dummy_hcd_to_hcd(dum_hcd)->uses_new_polling = 1; #ifdef CONFIG_USB_OTG diff --git a/drivers/usb/gadget/udc/lpc32xx_udc.c b/drivers/usb/gadget/udc/lpc32xx_udc.c index bb6af6b5ac97..4f1ac9f59f1c 100644 --- a/drivers/usb/gadget/udc/lpc32xx_udc.c +++ b/drivers/usb/gadget/udc/lpc32xx_udc.c @@ -1180,11 +1180,11 @@ static void udc_pop_fifo(struct lpc32xx_udc *udc, u8 *data, u32 bytes) tmp = readl(USBD_RXDATA(udc->udp_baseaddr)); bl = bytes - n; - if (bl > 3) - bl = 3; + if (bl > 4) + bl = 4; for (i = 0; i < bl; i++) - data[n + i] = (u8) ((tmp >> (n * 8)) & 0xFF); + data[n + i] = (u8) ((tmp >> (i * 8)) & 0xFF); } break; diff --git a/drivers/usb/host/xhci-debugfs.c b/drivers/usb/host/xhci-debugfs.c index 7ba6afc7ef23..76c3f29562d2 100644 --- a/drivers/usb/host/xhci-debugfs.c +++ b/drivers/usb/host/xhci-debugfs.c @@ -202,10 +202,10 @@ static void xhci_ring_dump_segment(struct seq_file *s, trb = &seg->trbs[i]; dma = seg->dma + i * sizeof(*trb); seq_printf(s, "%pad: %s\n", &dma, - xhci_decode_trb(trb->generic.field[0], - trb->generic.field[1], - trb->generic.field[2], - trb->generic.field[3])); + xhci_decode_trb(le32_to_cpu(trb->generic.field[0]), + le32_to_cpu(trb->generic.field[1]), + le32_to_cpu(trb->generic.field[2]), + le32_to_cpu(trb->generic.field[3]))); } } @@ -263,10 +263,10 @@ static int xhci_slot_context_show(struct seq_file *s, void *unused) xhci = hcd_to_xhci(bus_to_hcd(dev->udev->bus)); slot_ctx = xhci_get_slot_ctx(xhci, dev->out_ctx); seq_printf(s, "%pad: %s\n", &dev->out_ctx->dma, - xhci_decode_slot_context(slot_ctx->dev_info, - slot_ctx->dev_info2, - slot_ctx->tt_info, - slot_ctx->dev_state)); + xhci_decode_slot_context(le32_to_cpu(slot_ctx->dev_info), + le32_to_cpu(slot_ctx->dev_info2), + le32_to_cpu(slot_ctx->tt_info), + le32_to_cpu(slot_ctx->dev_state))); return 0; } @@ -286,10 +286,10 @@ static int xhci_endpoint_context_show(struct seq_file *s, void *unused) ep_ctx = xhci_get_ep_ctx(xhci, dev->out_ctx, dci); dma = dev->out_ctx->dma + dci * CTX_SIZE(xhci->hcc_params); seq_printf(s, "%pad: %s\n", &dma, - xhci_decode_ep_context(ep_ctx->ep_info, - ep_ctx->ep_info2, - ep_ctx->deq, - ep_ctx->tx_info)); + xhci_decode_ep_context(le32_to_cpu(ep_ctx->ep_info), + le32_to_cpu(ep_ctx->ep_info2), + le64_to_cpu(ep_ctx->deq), + le32_to_cpu(ep_ctx->tx_info))); } return 0; diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 9741cdeea9d7..e7aab31fd9a5 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -3202,10 +3202,10 @@ static int xhci_align_td(struct xhci_hcd *xhci, struct urb *urb, u32 enqd_len, if (usb_urb_dir_out(urb)) { len = sg_pcopy_to_buffer(urb->sg, urb->num_sgs, seg->bounce_buf, new_buff_len, enqd_len); - if (len != seg->bounce_len) + if (len != new_buff_len) xhci_warn(xhci, "WARN Wrong bounce buffer write length: %zu != %d\n", - len, seg->bounce_len); + len, new_buff_len); seg->bounce_dma = dma_map_single(dev, seg->bounce_buf, max_pkt, DMA_TO_DEVICE); } else { @@ -3330,6 +3330,7 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags, if (xhci_urb_suitable_for_idt(urb)) { memcpy(&send_addr, urb->transfer_buffer, trb_buff_len); + le64_to_cpus(&send_addr); field |= TRB_IDT; } } @@ -3475,6 +3476,7 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags, if (xhci_urb_suitable_for_idt(urb)) { memcpy(&addr, urb->transfer_buffer, urb->transfer_buffer_length); + le64_to_cpus(&addr); field |= TRB_IDT; } else { addr = (u64) urb->transfer_dma; diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 03d1e552769b..270e45058272 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1032,7 +1032,7 @@ int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup) writel(command, &xhci->op_regs->command); xhci->broken_suspend = 0; if (xhci_handshake(&xhci->op_regs->status, - STS_SAVE, 0, 10 * 1000)) { + STS_SAVE, 0, 20 * 1000)) { /* * AMD SNPS xHC 3.0 occasionally does not clear the * SSS bit of USBSTS and when driver tries to poll @@ -1108,6 +1108,18 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) hibernated = true; if (!hibernated) { + /* + * Some controllers might lose power during suspend, so wait + * for controller not ready bit to clear, just as in xHC init. + */ + retval = xhci_handshake(&xhci->op_regs->status, + STS_CNR, 0, 10 * 1000 * 1000); + if (retval) { + xhci_warn(xhci, "Controller not ready at resume %d\n", + retval); + spin_unlock_irq(&xhci->lock); + return retval; + } /* step 1: restore register */ xhci_restore_registers(xhci); /* step 2: initialize command ring buffer */ @@ -3059,6 +3071,48 @@ void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci, unsigned int ep_index, } } +static void xhci_endpoint_disable(struct usb_hcd *hcd, + struct usb_host_endpoint *host_ep) +{ + struct xhci_hcd *xhci; + struct xhci_virt_device *vdev; + struct xhci_virt_ep *ep; + struct usb_device *udev; + unsigned long flags; + unsigned int ep_index; + + xhci = hcd_to_xhci(hcd); +rescan: + spin_lock_irqsave(&xhci->lock, flags); + + udev = (struct usb_device *)host_ep->hcpriv; + if (!udev || !udev->slot_id) + goto done; + + vdev = xhci->devs[udev->slot_id]; + if (!vdev) + goto done; + + ep_index = xhci_get_endpoint_index(&host_ep->desc); + ep = &vdev->eps[ep_index]; + if (!ep) + goto done; + + /* wait for hub_tt_work to finish clearing hub TT */ + if (ep->ep_state & EP_CLEARING_TT) { + spin_unlock_irqrestore(&xhci->lock, flags); + schedule_timeout_uninterruptible(1); + goto rescan; + } + + if (ep->ep_state) + xhci_dbg(xhci, "endpoint disable with ep_state 0x%x\n", + ep->ep_state); +done: + host_ep->hcpriv = NULL; + spin_unlock_irqrestore(&xhci->lock, flags); +} + /* * Called after usb core issues a clear halt control message. * The host side of the halt should already be cleared by a reset endpoint @@ -3083,6 +3137,7 @@ static void xhci_endpoint_reset(struct usb_hcd *hcd, unsigned int ep_index; unsigned long flags; u32 ep_flag; + int err; xhci = hcd_to_xhci(hcd); if (!host_ep->hcpriv) @@ -3142,7 +3197,17 @@ static void xhci_endpoint_reset(struct usb_hcd *hcd, xhci_free_command(xhci, cfg_cmd); goto cleanup; } - xhci_queue_stop_endpoint(xhci, stop_cmd, udev->slot_id, ep_index, 0); + + err = xhci_queue_stop_endpoint(xhci, stop_cmd, udev->slot_id, + ep_index, 0); + if (err < 0) { + spin_unlock_irqrestore(&xhci->lock, flags); + xhci_free_command(xhci, cfg_cmd); + xhci_dbg(xhci, "%s: Failed to queue stop ep command, %d ", + __func__, err); + goto cleanup; + } + xhci_ring_cmd_db(xhci); spin_unlock_irqrestore(&xhci->lock, flags); @@ -3156,8 +3221,16 @@ static void xhci_endpoint_reset(struct usb_hcd *hcd, ctrl_ctx, ep_flag, ep_flag); xhci_endpoint_copy(xhci, cfg_cmd->in_ctx, vdev->out_ctx, ep_index); - xhci_queue_configure_endpoint(xhci, cfg_cmd, cfg_cmd->in_ctx->dma, + err = xhci_queue_configure_endpoint(xhci, cfg_cmd, cfg_cmd->in_ctx->dma, udev->slot_id, false); + if (err < 0) { + spin_unlock_irqrestore(&xhci->lock, flags); + xhci_free_command(xhci, cfg_cmd); + xhci_dbg(xhci, "%s: Failed to queue config ep command, %d ", + __func__, err); + goto cleanup; + } + xhci_ring_cmd_db(xhci); spin_unlock_irqrestore(&xhci->lock, flags); @@ -4673,12 +4746,12 @@ static int xhci_update_timeout_for_endpoint(struct xhci_hcd *xhci, alt_timeout = xhci_call_host_update_timeout_for_endpoint(xhci, udev, desc, state, timeout); - /* If we found we can't enable hub-initiated LPM, or + /* If we found we can't enable hub-initiated LPM, and * the U1 or U2 exit latency was too high to allow - * device-initiated LPM as well, just stop searching. + * device-initiated LPM as well, then we will disable LPM + * for this device, so stop searching any further. */ - if (alt_timeout == USB3_LPM_DISABLED || - alt_timeout == USB3_LPM_DEVICE_INITIATED) { + if (alt_timeout == USB3_LPM_DISABLED) { *timeout = alt_timeout; return -E2BIG; } @@ -4789,10 +4862,12 @@ static u16 xhci_calculate_lpm_timeout(struct usb_hcd *hcd, if (intf->dev.driver) { driver = to_usb_driver(intf->dev.driver); if (driver && driver->disable_hub_initiated_lpm) { - dev_dbg(&udev->dev, "Hub-initiated %s disabled " - "at request of driver %s\n", - state_name, driver->name); - return xhci_get_timeout_no_hub_lpm(udev, state); + dev_dbg(&udev->dev, "Hub-initiated %s disabled at request of driver %s\n", + state_name, driver->name); + timeout = xhci_get_timeout_no_hub_lpm(udev, + state); + if (timeout == USB3_LPM_DISABLED) + return timeout; } } @@ -5076,11 +5151,18 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) hcd->has_tt = 1; } else { /* - * Some 3.1 hosts return sbrn 0x30, use xhci supported protocol - * minor revision instead of sbrn. Minor revision is a two digit - * BCD containing minor and sub-minor numbers, only show minor. + * Early xHCI 1.1 spec did not mention USB 3.1 capable hosts + * should return 0x31 for sbrn, or that the minor revision + * is a two digit BCD containig minor and sub-minor numbers. + * This was later clarified in xHCI 1.2. + * + * Some USB 3.1 capable hosts therefore have sbrn 0x30, and + * minor revision set to 0x1 instead of 0x10. */ - minor_rev = xhci->usb3_rhub.min_rev / 0x10; + if (xhci->usb3_rhub.min_rev == 0x1) + minor_rev = 1; + else + minor_rev = xhci->usb3_rhub.min_rev / 0x10; switch (minor_rev) { case 2: @@ -5198,11 +5280,12 @@ static void xhci_clear_tt_buffer_complete(struct usb_hcd *hcd, unsigned long flags; xhci = hcd_to_xhci(hcd); + + spin_lock_irqsave(&xhci->lock, flags); udev = (struct usb_device *)ep->hcpriv; slot_id = udev->slot_id; ep_index = xhci_get_endpoint_index(&ep->desc); - spin_lock_irqsave(&xhci->lock, flags); xhci->devs[slot_id]->eps[ep_index].ep_state &= ~EP_CLEARING_TT; xhci_ring_doorbell_for_active_rings(xhci, slot_id, ep_index); spin_unlock_irqrestore(&xhci->lock, flags); @@ -5239,6 +5322,7 @@ static const struct hc_driver xhci_hc_driver = { .free_streams = xhci_free_streams, .add_endpoint = xhci_add_endpoint, .drop_endpoint = xhci_drop_endpoint, + .endpoint_disable = xhci_endpoint_disable, .endpoint_reset = xhci_endpoint_reset, .check_bandwidth = xhci_check_bandwidth, .reset_bandwidth = xhci_reset_bandwidth, diff --git a/drivers/usb/image/microtek.c b/drivers/usb/image/microtek.c index 0a57c2cc8e5a..7a6b122c833f 100644 --- a/drivers/usb/image/microtek.c +++ b/drivers/usb/image/microtek.c @@ -716,6 +716,10 @@ static int mts_usb_probe(struct usb_interface *intf, } + if (ep_in_current != &ep_in_set[2]) { + MTS_WARNING("couldn't find two input bulk endpoints. Bailing out.\n"); + return -ENODEV; + } if ( ep_out == -1 ) { MTS_WARNING( "couldn't find an output bulk endpoint. Bailing out.\n" ); diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig index bdae62b2ffe0..9bce583aada3 100644 --- a/drivers/usb/misc/Kconfig +++ b/drivers/usb/misc/Kconfig @@ -47,16 +47,6 @@ config USB_SEVSEG To compile this driver as a module, choose M here: the module will be called usbsevseg. -config USB_RIO500 - tristate "USB Diamond Rio500 support" - help - Say Y here if you want to connect a USB Rio500 mp3 player to your - computer's USB port. Please read <file:Documentation/usb/rio.rst> - for more information. - - To compile this driver as a module, choose M here: the - module will be called rio500. - config USB_LEGOTOWER tristate "USB Lego Infrared Tower support" help diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile index 109f54f5b9aa..0d416eb624bb 100644 --- a/drivers/usb/misc/Makefile +++ b/drivers/usb/misc/Makefile @@ -17,7 +17,6 @@ obj-$(CONFIG_USB_ISIGHTFW) += isight_firmware.o obj-$(CONFIG_USB_LCD) += usblcd.o obj-$(CONFIG_USB_LD) += ldusb.o obj-$(CONFIG_USB_LEGOTOWER) += legousbtower.o -obj-$(CONFIG_USB_RIO500) += rio500.o obj-$(CONFIG_USB_TEST) += usbtest.o obj-$(CONFIG_USB_EHSET_TEST_FIXTURE) += ehset.o obj-$(CONFIG_USB_TRANCEVIBRATOR) += trancevibrator.o diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c index 344d523b0502..6f5edb9fc61e 100644 --- a/drivers/usb/misc/adutux.c +++ b/drivers/usb/misc/adutux.c @@ -75,6 +75,7 @@ struct adu_device { char serial_number[8]; int open_count; /* number of times this port has been opened */ + unsigned long disconnected:1; char *read_buffer_primary; int read_buffer_length; @@ -116,7 +117,7 @@ static void adu_abort_transfers(struct adu_device *dev) { unsigned long flags; - if (dev->udev == NULL) + if (dev->disconnected) return; /* shutdown transfer */ @@ -148,6 +149,7 @@ static void adu_delete(struct adu_device *dev) kfree(dev->read_buffer_secondary); kfree(dev->interrupt_in_buffer); kfree(dev->interrupt_out_buffer); + usb_put_dev(dev->udev); kfree(dev); } @@ -243,7 +245,7 @@ static int adu_open(struct inode *inode, struct file *file) } dev = usb_get_intfdata(interface); - if (!dev || !dev->udev) { + if (!dev) { retval = -ENODEV; goto exit_no_device; } @@ -326,7 +328,7 @@ static int adu_release(struct inode *inode, struct file *file) } adu_release_internal(dev); - if (dev->udev == NULL) { + if (dev->disconnected) { /* the device was unplugged before the file was released */ if (!dev->open_count) /* ... and we're the last user */ adu_delete(dev); @@ -354,7 +356,7 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count, return -ERESTARTSYS; /* verify that the device wasn't unplugged */ - if (dev->udev == NULL) { + if (dev->disconnected) { retval = -ENODEV; pr_err("No device or device unplugged %d\n", retval); goto exit; @@ -518,7 +520,7 @@ static ssize_t adu_write(struct file *file, const __user char *buffer, goto exit_nolock; /* verify that the device wasn't unplugged */ - if (dev->udev == NULL) { + if (dev->disconnected) { retval = -ENODEV; pr_err("No device or device unplugged %d\n", retval); goto exit; @@ -663,7 +665,7 @@ static int adu_probe(struct usb_interface *interface, mutex_init(&dev->mtx); spin_lock_init(&dev->buflock); - dev->udev = udev; + dev->udev = usb_get_dev(udev); init_waitqueue_head(&dev->read_wait); init_waitqueue_head(&dev->write_wait); @@ -762,14 +764,18 @@ static void adu_disconnect(struct usb_interface *interface) dev = usb_get_intfdata(interface); - mutex_lock(&dev->mtx); /* not interruptible */ - dev->udev = NULL; /* poison */ usb_deregister_dev(interface, &adu_class); - mutex_unlock(&dev->mtx); + + usb_poison_urb(dev->interrupt_in_urb); + usb_poison_urb(dev->interrupt_out_urb); mutex_lock(&adutux_mutex); usb_set_intfdata(interface, NULL); + mutex_lock(&dev->mtx); /* not interruptible */ + dev->disconnected = 1; + mutex_unlock(&dev->mtx); + /* if the device is not opened, then we clean up right now */ if (!dev->open_count) adu_delete(dev); diff --git a/drivers/usb/misc/chaoskey.c b/drivers/usb/misc/chaoskey.c index cf5828ce927a..34e6cd6f40d3 100644 --- a/drivers/usb/misc/chaoskey.c +++ b/drivers/usb/misc/chaoskey.c @@ -98,6 +98,7 @@ static void chaoskey_free(struct chaoskey *dev) usb_free_urb(dev->urb); kfree(dev->name); kfree(dev->buf); + usb_put_intf(dev->interface); kfree(dev); } } @@ -145,6 +146,8 @@ static int chaoskey_probe(struct usb_interface *interface, if (dev == NULL) goto out; + dev->interface = usb_get_intf(interface); + dev->buf = kmalloc(size, GFP_KERNEL); if (dev->buf == NULL) @@ -174,8 +177,6 @@ static int chaoskey_probe(struct usb_interface *interface, goto out; } - dev->interface = interface; - dev->in_ep = in_ep; if (le16_to_cpu(udev->descriptor.idVendor) != ALEA_VENDOR_ID) diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c index f5bed9f29e56..f405fa734bcc 100644 --- a/drivers/usb/misc/iowarrior.c +++ b/drivers/usb/misc/iowarrior.c @@ -87,6 +87,7 @@ struct iowarrior { char chip_serial[9]; /* the serial number string of the chip connected */ int report_size; /* number of bytes in a report */ u16 product_id; + struct usb_anchor submitted; }; /*--------------*/ @@ -243,6 +244,7 @@ static inline void iowarrior_delete(struct iowarrior *dev) kfree(dev->int_in_buffer); usb_free_urb(dev->int_in_urb); kfree(dev->read_queue); + usb_put_intf(dev->interface); kfree(dev); } @@ -424,11 +426,13 @@ static ssize_t iowarrior_write(struct file *file, retval = -EFAULT; goto error; } + usb_anchor_urb(int_out_urb, &dev->submitted); retval = usb_submit_urb(int_out_urb, GFP_KERNEL); if (retval) { dev_dbg(&dev->interface->dev, "submit error %d for urb nr.%d\n", retval, atomic_read(&dev->write_busy)); + usb_unanchor_urb(int_out_urb); goto error; } /* submit was ok */ @@ -764,11 +768,13 @@ static int iowarrior_probe(struct usb_interface *interface, init_waitqueue_head(&dev->write_wait); dev->udev = udev; - dev->interface = interface; + dev->interface = usb_get_intf(interface); iface_desc = interface->cur_altsetting; dev->product_id = le16_to_cpu(udev->descriptor.idProduct); + init_usb_anchor(&dev->submitted); + res = usb_find_last_int_in_endpoint(iface_desc, &dev->int_in_endpoint); if (res) { dev_err(&interface->dev, "no interrupt-in endpoint found\n"); @@ -866,8 +872,6 @@ static void iowarrior_disconnect(struct usb_interface *interface) dev = usb_get_intfdata(interface); mutex_lock(&iowarrior_open_disc_lock); usb_set_intfdata(interface, NULL); - /* prevent device read, write and ioctl */ - dev->present = 0; minor = dev->minor; mutex_unlock(&iowarrior_open_disc_lock); @@ -878,8 +882,7 @@ static void iowarrior_disconnect(struct usb_interface *interface) mutex_lock(&dev->mutex); /* prevent device read, write and ioctl */ - - mutex_unlock(&dev->mutex); + dev->present = 0; if (dev->opened) { /* There is a process that holds a filedescriptor to the device , @@ -887,10 +890,13 @@ static void iowarrior_disconnect(struct usb_interface *interface) Deleting the device is postponed until close() was called. */ usb_kill_urb(dev->int_in_urb); + usb_kill_anchored_urbs(&dev->submitted); wake_up_interruptible(&dev->read_wait); wake_up_interruptible(&dev->write_wait); + mutex_unlock(&dev->mutex); } else { /* no process is using the device, cleanup now */ + mutex_unlock(&dev->mutex); iowarrior_delete(dev); } diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c index 6581774bdfa4..f5e34c503454 100644 --- a/drivers/usb/misc/ldusb.c +++ b/drivers/usb/misc/ldusb.c @@ -153,6 +153,7 @@ MODULE_PARM_DESC(min_interrupt_out_interval, "Minimum interrupt out interval in struct ld_usb { struct mutex mutex; /* locks this structure */ struct usb_interface *intf; /* save off the usb interface pointer */ + unsigned long disconnected:1; int open_count; /* number of times this port has been opened */ @@ -192,12 +193,10 @@ static void ld_usb_abort_transfers(struct ld_usb *dev) /* shutdown transfer */ if (dev->interrupt_in_running) { dev->interrupt_in_running = 0; - if (dev->intf) - usb_kill_urb(dev->interrupt_in_urb); + usb_kill_urb(dev->interrupt_in_urb); } if (dev->interrupt_out_busy) - if (dev->intf) - usb_kill_urb(dev->interrupt_out_urb); + usb_kill_urb(dev->interrupt_out_urb); } /** @@ -205,8 +204,6 @@ static void ld_usb_abort_transfers(struct ld_usb *dev) */ static void ld_usb_delete(struct ld_usb *dev) { - ld_usb_abort_transfers(dev); - /* free data structures */ usb_free_urb(dev->interrupt_in_urb); usb_free_urb(dev->interrupt_out_urb); @@ -263,7 +260,7 @@ static void ld_usb_interrupt_in_callback(struct urb *urb) resubmit: /* resubmit if we're still running */ - if (dev->interrupt_in_running && !dev->buffer_overflow && dev->intf) { + if (dev->interrupt_in_running && !dev->buffer_overflow) { retval = usb_submit_urb(dev->interrupt_in_urb, GFP_ATOMIC); if (retval) { dev_err(&dev->intf->dev, @@ -383,16 +380,13 @@ static int ld_usb_release(struct inode *inode, struct file *file) goto exit; } - if (mutex_lock_interruptible(&dev->mutex)) { - retval = -ERESTARTSYS; - goto exit; - } + mutex_lock(&dev->mutex); if (dev->open_count != 1) { retval = -ENODEV; goto unlock_exit; } - if (dev->intf == NULL) { + if (dev->disconnected) { /* the device was unplugged before the file was released */ mutex_unlock(&dev->mutex); /* unlock here as ld_usb_delete frees dev */ @@ -423,7 +417,7 @@ static __poll_t ld_usb_poll(struct file *file, poll_table *wait) dev = file->private_data; - if (!dev->intf) + if (dev->disconnected) return EPOLLERR | EPOLLHUP; poll_wait(file, &dev->read_wait, wait); @@ -462,7 +456,7 @@ static ssize_t ld_usb_read(struct file *file, char __user *buffer, size_t count, } /* verify that the device wasn't unplugged */ - if (dev->intf == NULL) { + if (dev->disconnected) { retval = -ENODEV; printk(KERN_ERR "ldusb: No device or device unplugged %d\n", retval); goto unlock_exit; @@ -470,7 +464,7 @@ static ssize_t ld_usb_read(struct file *file, char __user *buffer, size_t count, /* wait for data */ spin_lock_irq(&dev->rbsl); - if (dev->ring_head == dev->ring_tail) { + while (dev->ring_head == dev->ring_tail) { dev->interrupt_in_done = 0; spin_unlock_irq(&dev->rbsl); if (file->f_flags & O_NONBLOCK) { @@ -480,12 +474,17 @@ static ssize_t ld_usb_read(struct file *file, char __user *buffer, size_t count, retval = wait_event_interruptible(dev->read_wait, dev->interrupt_in_done); if (retval < 0) goto unlock_exit; - } else { - spin_unlock_irq(&dev->rbsl); + + spin_lock_irq(&dev->rbsl); } + spin_unlock_irq(&dev->rbsl); /* actual_buffer contains actual_length + interrupt_in_buffer */ actual_buffer = (size_t *)(dev->ring_buffer + dev->ring_tail * (sizeof(size_t)+dev->interrupt_in_endpoint_size)); + if (*actual_buffer > dev->interrupt_in_endpoint_size) { + retval = -EIO; + goto unlock_exit; + } bytes_to_read = min(count, *actual_buffer); if (bytes_to_read < *actual_buffer) dev_warn(&dev->intf->dev, "Read buffer overflow, %zd bytes dropped\n", @@ -496,11 +495,11 @@ static ssize_t ld_usb_read(struct file *file, char __user *buffer, size_t count, retval = -EFAULT; goto unlock_exit; } - dev->ring_tail = (dev->ring_tail+1) % ring_buffer_size; - retval = bytes_to_read; spin_lock_irq(&dev->rbsl); + dev->ring_tail = (dev->ring_tail + 1) % ring_buffer_size; + if (dev->buffer_overflow) { dev->buffer_overflow = 0; spin_unlock_irq(&dev->rbsl); @@ -542,7 +541,7 @@ static ssize_t ld_usb_write(struct file *file, const char __user *buffer, } /* verify that the device wasn't unplugged */ - if (dev->intf == NULL) { + if (dev->disconnected) { retval = -ENODEV; printk(KERN_ERR "ldusb: No device or device unplugged %d\n", retval); goto unlock_exit; @@ -581,7 +580,7 @@ static ssize_t ld_usb_write(struct file *file, const char __user *buffer, 1 << 8, 0, dev->interrupt_out_buffer, bytes_to_write, - USB_CTRL_SET_TIMEOUT * HZ); + USB_CTRL_SET_TIMEOUT); if (retval < 0) dev_err(&dev->intf->dev, "Couldn't submit HID_REQ_SET_REPORT %d\n", @@ -696,10 +695,9 @@ static int ld_usb_probe(struct usb_interface *intf, const struct usb_device_id * dev_warn(&intf->dev, "Interrupt out endpoint not found (using control endpoint instead)\n"); dev->interrupt_in_endpoint_size = usb_endpoint_maxp(dev->interrupt_in_endpoint); - dev->ring_buffer = - kmalloc_array(ring_buffer_size, - sizeof(size_t) + dev->interrupt_in_endpoint_size, - GFP_KERNEL); + dev->ring_buffer = kcalloc(ring_buffer_size, + sizeof(size_t) + dev->interrupt_in_endpoint_size, + GFP_KERNEL); if (!dev->ring_buffer) goto error; dev->interrupt_in_buffer = kmalloc(dev->interrupt_in_endpoint_size, GFP_KERNEL); @@ -764,6 +762,9 @@ static void ld_usb_disconnect(struct usb_interface *intf) /* give back our minor */ usb_deregister_dev(intf, &ld_usb_class); + usb_poison_urb(dev->interrupt_in_urb); + usb_poison_urb(dev->interrupt_out_urb); + mutex_lock(&dev->mutex); /* if the device is not opened, then we clean up right now */ @@ -771,7 +772,7 @@ static void ld_usb_disconnect(struct usb_interface *intf) mutex_unlock(&dev->mutex); ld_usb_delete(dev); } else { - dev->intf = NULL; + dev->disconnected = 1; /* wake up pollers */ wake_up_interruptible_all(&dev->read_wait); wake_up_interruptible_all(&dev->write_wait); diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c index 006cf13b2199..23061f1526b4 100644 --- a/drivers/usb/misc/legousbtower.c +++ b/drivers/usb/misc/legousbtower.c @@ -179,7 +179,6 @@ static const struct usb_device_id tower_table[] = { }; MODULE_DEVICE_TABLE (usb, tower_table); -static DEFINE_MUTEX(open_disc_mutex); #define LEGO_USB_TOWER_MINOR_BASE 160 @@ -191,6 +190,7 @@ struct lego_usb_tower { unsigned char minor; /* the starting minor number for this device */ int open_count; /* number of times this port has been opened */ + unsigned long disconnected:1; char* read_buffer; size_t read_buffer_length; /* this much came in */ @@ -290,14 +290,13 @@ static inline void lego_usb_tower_debug_data(struct device *dev, */ static inline void tower_delete (struct lego_usb_tower *dev) { - tower_abort_transfers (dev); - /* free data structures */ usb_free_urb(dev->interrupt_in_urb); usb_free_urb(dev->interrupt_out_urb); kfree (dev->read_buffer); kfree (dev->interrupt_in_buffer); kfree (dev->interrupt_out_buffer); + usb_put_dev(dev->udev); kfree (dev); } @@ -332,18 +331,14 @@ static int tower_open (struct inode *inode, struct file *file) goto exit; } - mutex_lock(&open_disc_mutex); dev = usb_get_intfdata(interface); - if (!dev) { - mutex_unlock(&open_disc_mutex); retval = -ENODEV; goto exit; } /* lock this device */ if (mutex_lock_interruptible(&dev->lock)) { - mutex_unlock(&open_disc_mutex); retval = -ERESTARTSYS; goto exit; } @@ -351,12 +346,9 @@ static int tower_open (struct inode *inode, struct file *file) /* allow opening only once */ if (dev->open_count) { - mutex_unlock(&open_disc_mutex); retval = -EBUSY; goto unlock_exit; } - dev->open_count = 1; - mutex_unlock(&open_disc_mutex); /* reset the tower */ result = usb_control_msg (dev->udev, @@ -396,13 +388,14 @@ static int tower_open (struct inode *inode, struct file *file) dev_err(&dev->udev->dev, "Couldn't submit interrupt_in_urb %d\n", retval); dev->interrupt_in_running = 0; - dev->open_count = 0; goto unlock_exit; } /* save device in the file's private structure */ file->private_data = dev; + dev->open_count = 1; + unlock_exit: mutex_unlock(&dev->lock); @@ -423,22 +416,19 @@ static int tower_release (struct inode *inode, struct file *file) if (dev == NULL) { retval = -ENODEV; - goto exit_nolock; - } - - mutex_lock(&open_disc_mutex); - if (mutex_lock_interruptible(&dev->lock)) { - retval = -ERESTARTSYS; goto exit; } + mutex_lock(&dev->lock); + if (dev->open_count != 1) { dev_dbg(&dev->udev->dev, "%s: device not opened exactly once\n", __func__); retval = -ENODEV; goto unlock_exit; } - if (dev->udev == NULL) { + + if (dev->disconnected) { /* the device was unplugged before the file was released */ /* unlock here as tower_delete frees dev */ @@ -456,10 +446,7 @@ static int tower_release (struct inode *inode, struct file *file) unlock_exit: mutex_unlock(&dev->lock); - exit: - mutex_unlock(&open_disc_mutex); -exit_nolock: return retval; } @@ -477,10 +464,9 @@ static void tower_abort_transfers (struct lego_usb_tower *dev) if (dev->interrupt_in_running) { dev->interrupt_in_running = 0; mb(); - if (dev->udev) - usb_kill_urb (dev->interrupt_in_urb); + usb_kill_urb(dev->interrupt_in_urb); } - if (dev->interrupt_out_busy && dev->udev) + if (dev->interrupt_out_busy) usb_kill_urb(dev->interrupt_out_urb); } @@ -516,7 +502,7 @@ static __poll_t tower_poll (struct file *file, poll_table *wait) dev = file->private_data; - if (!dev->udev) + if (dev->disconnected) return EPOLLERR | EPOLLHUP; poll_wait(file, &dev->read_wait, wait); @@ -563,7 +549,7 @@ static ssize_t tower_read (struct file *file, char __user *buffer, size_t count, } /* verify that the device wasn't unplugged */ - if (dev->udev == NULL) { + if (dev->disconnected) { retval = -ENODEV; pr_err("No device or device unplugged %d\n", retval); goto unlock_exit; @@ -649,7 +635,7 @@ static ssize_t tower_write (struct file *file, const char __user *buffer, size_t } /* verify that the device wasn't unplugged */ - if (dev->udev == NULL) { + if (dev->disconnected) { retval = -ENODEV; pr_err("No device or device unplugged %d\n", retval); goto unlock_exit; @@ -759,7 +745,7 @@ static void tower_interrupt_in_callback (struct urb *urb) resubmit: /* resubmit if we're still running */ - if (dev->interrupt_in_running && dev->udev) { + if (dev->interrupt_in_running) { retval = usb_submit_urb (dev->interrupt_in_urb, GFP_ATOMIC); if (retval) dev_err(&dev->udev->dev, @@ -822,8 +808,9 @@ static int tower_probe (struct usb_interface *interface, const struct usb_device mutex_init(&dev->lock); - dev->udev = udev; + dev->udev = usb_get_dev(udev); dev->open_count = 0; + dev->disconnected = 0; dev->read_buffer = NULL; dev->read_buffer_length = 0; @@ -891,8 +878,10 @@ static int tower_probe (struct usb_interface *interface, const struct usb_device get_version_reply, sizeof(*get_version_reply), 1000); - if (result < 0) { - dev_err(idev, "LEGO USB Tower get version control request failed\n"); + if (result != sizeof(*get_version_reply)) { + if (result >= 0) + result = -EIO; + dev_err(idev, "get version request failed: %d\n", result); retval = result; goto error; } @@ -910,7 +899,6 @@ static int tower_probe (struct usb_interface *interface, const struct usb_device if (retval) { /* something prevented us from registering this driver */ dev_err(idev, "Not able to get a minor for this device.\n"); - usb_set_intfdata (interface, NULL); goto error; } dev->minor = interface->minor; @@ -942,23 +930,24 @@ static void tower_disconnect (struct usb_interface *interface) int minor; dev = usb_get_intfdata (interface); - mutex_lock(&open_disc_mutex); - usb_set_intfdata (interface, NULL); minor = dev->minor; - /* give back our minor */ + /* give back our minor and prevent further open() */ usb_deregister_dev (interface, &tower_class); + /* stop I/O */ + usb_poison_urb(dev->interrupt_in_urb); + usb_poison_urb(dev->interrupt_out_urb); + mutex_lock(&dev->lock); - mutex_unlock(&open_disc_mutex); /* if the device is not opened, then we clean up right now */ if (!dev->open_count) { mutex_unlock(&dev->lock); tower_delete (dev); } else { - dev->udev = NULL; + dev->disconnected = 1; /* wake up pollers */ wake_up_interruptible_all(&dev->read_wait); wake_up_interruptible_all(&dev->write_wait); diff --git a/drivers/usb/misc/rio500.c b/drivers/usb/misc/rio500.c deleted file mode 100644 index a32d61a79ab8..000000000000 --- a/drivers/usb/misc/rio500.c +++ /dev/null @@ -1,561 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* -*- linux-c -*- */ - -/* - * Driver for USB Rio 500 - * - * Cesar Miquel (miquel@df.uba.ar) - * - * based on hp_scanner.c by David E. Nelson (dnelson@jump.net) - * - * Based upon mouse.c (Brad Keryan) and printer.c (Michael Gee). - * - * Changelog: - * 30/05/2003 replaced lock/unlock kernel with up/down - * Daniele Bellucci bellucda@tiscali.it - * */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/signal.h> -#include <linux/sched/signal.h> -#include <linux/mutex.h> -#include <linux/errno.h> -#include <linux/random.h> -#include <linux/poll.h> -#include <linux/slab.h> -#include <linux/spinlock.h> -#include <linux/usb.h> -#include <linux/wait.h> - -#include "rio500_usb.h" - -#define DRIVER_AUTHOR "Cesar Miquel <miquel@df.uba.ar>" -#define DRIVER_DESC "USB Rio 500 driver" - -#define RIO_MINOR 64 - -/* stall/wait timeout for rio */ -#define NAK_TIMEOUT (HZ) - -#define IBUF_SIZE 0x1000 - -/* Size of the rio buffer */ -#define OBUF_SIZE 0x10000 - -struct rio_usb_data { - struct usb_device *rio_dev; /* init: probe_rio */ - unsigned int ifnum; /* Interface number of the USB device */ - int isopen; /* nz if open */ - int present; /* Device is present on the bus */ - char *obuf, *ibuf; /* transfer buffers */ - char bulk_in_ep, bulk_out_ep; /* Endpoint assignments */ - wait_queue_head_t wait_q; /* for timeouts */ - struct mutex lock; /* general race avoidance */ -}; - -static DEFINE_MUTEX(rio500_mutex); -static struct rio_usb_data rio_instance; - -static int open_rio(struct inode *inode, struct file *file) -{ - struct rio_usb_data *rio = &rio_instance; - - /* against disconnect() */ - mutex_lock(&rio500_mutex); - mutex_lock(&(rio->lock)); - - if (rio->isopen || !rio->present) { - mutex_unlock(&(rio->lock)); - mutex_unlock(&rio500_mutex); - return -EBUSY; - } - rio->isopen = 1; - - init_waitqueue_head(&rio->wait_q); - - mutex_unlock(&(rio->lock)); - - dev_info(&rio->rio_dev->dev, "Rio opened.\n"); - mutex_unlock(&rio500_mutex); - - return 0; -} - -static int close_rio(struct inode *inode, struct file *file) -{ - struct rio_usb_data *rio = &rio_instance; - - /* against disconnect() */ - mutex_lock(&rio500_mutex); - mutex_lock(&(rio->lock)); - - rio->isopen = 0; - if (!rio->present) { - /* cleanup has been delayed */ - kfree(rio->ibuf); - kfree(rio->obuf); - rio->ibuf = NULL; - rio->obuf = NULL; - } else { - dev_info(&rio->rio_dev->dev, "Rio closed.\n"); - } - mutex_unlock(&(rio->lock)); - mutex_unlock(&rio500_mutex); - return 0; -} - -static long ioctl_rio(struct file *file, unsigned int cmd, unsigned long arg) -{ - struct RioCommand rio_cmd; - struct rio_usb_data *rio = &rio_instance; - void __user *data; - unsigned char *buffer; - int result, requesttype; - int retries; - int retval=0; - - mutex_lock(&(rio->lock)); - /* Sanity check to make sure rio is connected, powered, etc */ - if (rio->present == 0 || rio->rio_dev == NULL) { - retval = -ENODEV; - goto err_out; - } - - switch (cmd) { - case RIO_RECV_COMMAND: - data = (void __user *) arg; - if (data == NULL) - break; - if (copy_from_user(&rio_cmd, data, sizeof(struct RioCommand))) { - retval = -EFAULT; - goto err_out; - } - if (rio_cmd.length < 0 || rio_cmd.length > PAGE_SIZE) { - retval = -EINVAL; - goto err_out; - } - buffer = (unsigned char *) __get_free_page(GFP_KERNEL); - if (buffer == NULL) { - retval = -ENOMEM; - goto err_out; - } - if (copy_from_user(buffer, rio_cmd.buffer, rio_cmd.length)) { - retval = -EFAULT; - free_page((unsigned long) buffer); - goto err_out; - } - - requesttype = rio_cmd.requesttype | USB_DIR_IN | - USB_TYPE_VENDOR | USB_RECIP_DEVICE; - dev_dbg(&rio->rio_dev->dev, - "sending command:reqtype=%0x req=%0x value=%0x index=%0x len=%0x\n", - requesttype, rio_cmd.request, rio_cmd.value, - rio_cmd.index, rio_cmd.length); - /* Send rio control message */ - retries = 3; - while (retries) { - result = usb_control_msg(rio->rio_dev, - usb_rcvctrlpipe(rio-> rio_dev, 0), - rio_cmd.request, - requesttype, - rio_cmd.value, - rio_cmd.index, buffer, - rio_cmd.length, - jiffies_to_msecs(rio_cmd.timeout)); - if (result == -ETIMEDOUT) - retries--; - else if (result < 0) { - dev_err(&rio->rio_dev->dev, - "Error executing ioctrl. code = %d\n", - result); - retries = 0; - } else { - dev_dbg(&rio->rio_dev->dev, - "Executed ioctl. Result = %d (data=%02x)\n", - result, buffer[0]); - if (copy_to_user(rio_cmd.buffer, buffer, - rio_cmd.length)) { - free_page((unsigned long) buffer); - retval = -EFAULT; - goto err_out; - } - retries = 0; - } - - /* rio_cmd.buffer contains a raw stream of single byte - data which has been returned from rio. Data is - interpreted at application level. For data that - will be cast to data types longer than 1 byte, data - will be little_endian and will potentially need to - be swapped at the app level */ - - } - free_page((unsigned long) buffer); - break; - - case RIO_SEND_COMMAND: - data = (void __user *) arg; - if (data == NULL) - break; - if (copy_from_user(&rio_cmd, data, sizeof(struct RioCommand))) { - retval = -EFAULT; - goto err_out; - } - if (rio_cmd.length < 0 || rio_cmd.length > PAGE_SIZE) { - retval = -EINVAL; - goto err_out; - } - buffer = (unsigned char *) __get_free_page(GFP_KERNEL); - if (buffer == NULL) { - retval = -ENOMEM; - goto err_out; - } - if (copy_from_user(buffer, rio_cmd.buffer, rio_cmd.length)) { - free_page((unsigned long)buffer); - retval = -EFAULT; - goto err_out; - } - - requesttype = rio_cmd.requesttype | USB_DIR_OUT | - USB_TYPE_VENDOR | USB_RECIP_DEVICE; - dev_dbg(&rio->rio_dev->dev, - "sending command: reqtype=%0x req=%0x value=%0x index=%0x len=%0x\n", - requesttype, rio_cmd.request, rio_cmd.value, - rio_cmd.index, rio_cmd.length); - /* Send rio control message */ - retries = 3; - while (retries) { - result = usb_control_msg(rio->rio_dev, - usb_sndctrlpipe(rio-> rio_dev, 0), - rio_cmd.request, - requesttype, - rio_cmd.value, - rio_cmd.index, buffer, - rio_cmd.length, - jiffies_to_msecs(rio_cmd.timeout)); - if (result == -ETIMEDOUT) - retries--; - else if (result < 0) { - dev_err(&rio->rio_dev->dev, - "Error executing ioctrl. code = %d\n", - result); - retries = 0; - } else { - dev_dbg(&rio->rio_dev->dev, - "Executed ioctl. Result = %d\n", result); - retries = 0; - - } - - } - free_page((unsigned long) buffer); - break; - - default: - retval = -ENOTTY; - break; - } - - -err_out: - mutex_unlock(&(rio->lock)); - return retval; -} - -static ssize_t -write_rio(struct file *file, const char __user *buffer, - size_t count, loff_t * ppos) -{ - DEFINE_WAIT(wait); - struct rio_usb_data *rio = &rio_instance; - - unsigned long copy_size; - unsigned long bytes_written = 0; - unsigned int partial; - - int result = 0; - int maxretry; - int errn = 0; - int intr; - - intr = mutex_lock_interruptible(&(rio->lock)); - if (intr) - return -EINTR; - /* Sanity check to make sure rio is connected, powered, etc */ - if (rio->present == 0 || rio->rio_dev == NULL) { - mutex_unlock(&(rio->lock)); - return -ENODEV; - } - - - - do { - unsigned long thistime; - char *obuf = rio->obuf; - - thistime = copy_size = - (count >= OBUF_SIZE) ? OBUF_SIZE : count; - if (copy_from_user(rio->obuf, buffer, copy_size)) { - errn = -EFAULT; - goto error; - } - maxretry = 5; - while (thistime) { - if (!rio->rio_dev) { - errn = -ENODEV; - goto error; - } - if (signal_pending(current)) { - mutex_unlock(&(rio->lock)); - return bytes_written ? bytes_written : -EINTR; - } - - result = usb_bulk_msg(rio->rio_dev, - usb_sndbulkpipe(rio->rio_dev, 2), - obuf, thistime, &partial, 5000); - - dev_dbg(&rio->rio_dev->dev, - "write stats: result:%d thistime:%lu partial:%u\n", - result, thistime, partial); - - if (result == -ETIMEDOUT) { /* NAK - so hold for a while */ - if (!maxretry--) { - errn = -ETIME; - goto error; - } - prepare_to_wait(&rio->wait_q, &wait, TASK_INTERRUPTIBLE); - schedule_timeout(NAK_TIMEOUT); - finish_wait(&rio->wait_q, &wait); - continue; - } else if (!result && partial) { - obuf += partial; - thistime -= partial; - } else - break; - } - if (result) { - dev_err(&rio->rio_dev->dev, "Write Whoops - %x\n", - result); - errn = -EIO; - goto error; - } - bytes_written += copy_size; - count -= copy_size; - buffer += copy_size; - } while (count > 0); - - mutex_unlock(&(rio->lock)); - - return bytes_written ? bytes_written : -EIO; - -error: - mutex_unlock(&(rio->lock)); - return errn; -} - -static ssize_t -read_rio(struct file *file, char __user *buffer, size_t count, loff_t * ppos) -{ - DEFINE_WAIT(wait); - struct rio_usb_data *rio = &rio_instance; - ssize_t read_count; - unsigned int partial; - int this_read; - int result; - int maxretry = 10; - char *ibuf; - int intr; - - intr = mutex_lock_interruptible(&(rio->lock)); - if (intr) - return -EINTR; - /* Sanity check to make sure rio is connected, powered, etc */ - if (rio->present == 0 || rio->rio_dev == NULL) { - mutex_unlock(&(rio->lock)); - return -ENODEV; - } - - ibuf = rio->ibuf; - - read_count = 0; - - - while (count > 0) { - if (signal_pending(current)) { - mutex_unlock(&(rio->lock)); - return read_count ? read_count : -EINTR; - } - if (!rio->rio_dev) { - mutex_unlock(&(rio->lock)); - return -ENODEV; - } - this_read = (count >= IBUF_SIZE) ? IBUF_SIZE : count; - - result = usb_bulk_msg(rio->rio_dev, - usb_rcvbulkpipe(rio->rio_dev, 1), - ibuf, this_read, &partial, - 8000); - - dev_dbg(&rio->rio_dev->dev, - "read stats: result:%d this_read:%u partial:%u\n", - result, this_read, partial); - - if (partial) { - count = this_read = partial; - } else if (result == -ETIMEDOUT || result == 15) { /* FIXME: 15 ??? */ - if (!maxretry--) { - mutex_unlock(&(rio->lock)); - dev_err(&rio->rio_dev->dev, - "read_rio: maxretry timeout\n"); - return -ETIME; - } - prepare_to_wait(&rio->wait_q, &wait, TASK_INTERRUPTIBLE); - schedule_timeout(NAK_TIMEOUT); - finish_wait(&rio->wait_q, &wait); - continue; - } else if (result != -EREMOTEIO) { - mutex_unlock(&(rio->lock)); - dev_err(&rio->rio_dev->dev, - "Read Whoops - result:%d partial:%u this_read:%u\n", - result, partial, this_read); - return -EIO; - } else { - mutex_unlock(&(rio->lock)); - return (0); - } - - if (this_read) { - if (copy_to_user(buffer, ibuf, this_read)) { - mutex_unlock(&(rio->lock)); - return -EFAULT; - } - count -= this_read; - read_count += this_read; - buffer += this_read; - } - } - mutex_unlock(&(rio->lock)); - return read_count; -} - -static const struct file_operations usb_rio_fops = { - .owner = THIS_MODULE, - .read = read_rio, - .write = write_rio, - .unlocked_ioctl = ioctl_rio, - .open = open_rio, - .release = close_rio, - .llseek = noop_llseek, -}; - -static struct usb_class_driver usb_rio_class = { - .name = "rio500%d", - .fops = &usb_rio_fops, - .minor_base = RIO_MINOR, -}; - -static int probe_rio(struct usb_interface *intf, - const struct usb_device_id *id) -{ - struct usb_device *dev = interface_to_usbdev(intf); - struct rio_usb_data *rio = &rio_instance; - int retval = 0; - - mutex_lock(&rio500_mutex); - if (rio->present) { - dev_info(&intf->dev, "Second USB Rio at address %d refused\n", dev->devnum); - retval = -EBUSY; - goto bail_out; - } else { - dev_info(&intf->dev, "USB Rio found at address %d\n", dev->devnum); - } - - retval = usb_register_dev(intf, &usb_rio_class); - if (retval) { - dev_err(&dev->dev, - "Not able to get a minor for this device.\n"); - retval = -ENOMEM; - goto bail_out; - } - - rio->rio_dev = dev; - - if (!(rio->obuf = kmalloc(OBUF_SIZE, GFP_KERNEL))) { - dev_err(&dev->dev, - "probe_rio: Not enough memory for the output buffer\n"); - usb_deregister_dev(intf, &usb_rio_class); - retval = -ENOMEM; - goto bail_out; - } - dev_dbg(&intf->dev, "obuf address:%p\n", rio->obuf); - - if (!(rio->ibuf = kmalloc(IBUF_SIZE, GFP_KERNEL))) { - dev_err(&dev->dev, - "probe_rio: Not enough memory for the input buffer\n"); - usb_deregister_dev(intf, &usb_rio_class); - kfree(rio->obuf); - retval = -ENOMEM; - goto bail_out; - } - dev_dbg(&intf->dev, "ibuf address:%p\n", rio->ibuf); - - mutex_init(&(rio->lock)); - - usb_set_intfdata (intf, rio); - rio->present = 1; -bail_out: - mutex_unlock(&rio500_mutex); - - return retval; -} - -static void disconnect_rio(struct usb_interface *intf) -{ - struct rio_usb_data *rio = usb_get_intfdata (intf); - - usb_set_intfdata (intf, NULL); - mutex_lock(&rio500_mutex); - if (rio) { - usb_deregister_dev(intf, &usb_rio_class); - - mutex_lock(&(rio->lock)); - if (rio->isopen) { - rio->isopen = 0; - /* better let it finish - the release will do whats needed */ - rio->rio_dev = NULL; - mutex_unlock(&(rio->lock)); - mutex_unlock(&rio500_mutex); - return; - } - kfree(rio->ibuf); - kfree(rio->obuf); - - dev_info(&intf->dev, "USB Rio disconnected.\n"); - - rio->present = 0; - mutex_unlock(&(rio->lock)); - } - mutex_unlock(&rio500_mutex); -} - -static const struct usb_device_id rio_table[] = { - { USB_DEVICE(0x0841, 1) }, /* Rio 500 */ - { } /* Terminating entry */ -}; - -MODULE_DEVICE_TABLE (usb, rio_table); - -static struct usb_driver rio_driver = { - .name = "rio500", - .probe = probe_rio, - .disconnect = disconnect_rio, - .id_table = rio_table, -}; - -module_usb_driver(rio_driver); - -MODULE_AUTHOR( DRIVER_AUTHOR ); -MODULE_DESCRIPTION( DRIVER_DESC ); -MODULE_LICENSE("GPL"); - diff --git a/drivers/usb/misc/rio500_usb.h b/drivers/usb/misc/rio500_usb.h deleted file mode 100644 index 6db7a5863496..000000000000 --- a/drivers/usb/misc/rio500_usb.h +++ /dev/null @@ -1,20 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* ---------------------------------------------------------------------- - Copyright (C) 2000 Cesar Miquel (miquel@df.uba.ar) - ---------------------------------------------------------------------- */ - -#define RIO_SEND_COMMAND 0x1 -#define RIO_RECV_COMMAND 0x2 - -#define RIO_DIR_OUT 0x0 -#define RIO_DIR_IN 0x1 - -struct RioCommand { - short length; - int request; - int requesttype; - int value; - int index; - void __user *buffer; - int timeout; -}; diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c index 9ba4a4e68d91..aa982d3ca36b 100644 --- a/drivers/usb/misc/usblcd.c +++ b/drivers/usb/misc/usblcd.c @@ -18,6 +18,7 @@ #include <linux/slab.h> #include <linux/errno.h> #include <linux/mutex.h> +#include <linux/rwsem.h> #include <linux/uaccess.h> #include <linux/usb.h> @@ -57,6 +58,8 @@ struct usb_lcd { using up all RAM */ struct usb_anchor submitted; /* URBs to wait for before suspend */ + struct rw_semaphore io_rwsem; + unsigned long disconnected:1; }; #define to_lcd_dev(d) container_of(d, struct usb_lcd, kref) @@ -142,6 +145,13 @@ static ssize_t lcd_read(struct file *file, char __user * buffer, dev = file->private_data; + down_read(&dev->io_rwsem); + + if (dev->disconnected) { + retval = -ENODEV; + goto out_up_io; + } + /* do a blocking bulk read to get data from the device */ retval = usb_bulk_msg(dev->udev, usb_rcvbulkpipe(dev->udev, @@ -158,6 +168,9 @@ static ssize_t lcd_read(struct file *file, char __user * buffer, retval = bytes_read; } +out_up_io: + up_read(&dev->io_rwsem); + return retval; } @@ -237,11 +250,18 @@ static ssize_t lcd_write(struct file *file, const char __user * user_buffer, if (r < 0) return -EINTR; + down_read(&dev->io_rwsem); + + if (dev->disconnected) { + retval = -ENODEV; + goto err_up_io; + } + /* create a urb, and a buffer for it, and copy the data to the urb */ urb = usb_alloc_urb(0, GFP_KERNEL); if (!urb) { retval = -ENOMEM; - goto err_no_buf; + goto err_up_io; } buf = usb_alloc_coherent(dev->udev, count, GFP_KERNEL, @@ -278,6 +298,7 @@ static ssize_t lcd_write(struct file *file, const char __user * user_buffer, the USB core will eventually free it entirely */ usb_free_urb(urb); + up_read(&dev->io_rwsem); exit: return count; error_unanchor: @@ -285,7 +306,8 @@ error_unanchor: error: usb_free_coherent(dev->udev, count, buf, urb->transfer_dma); usb_free_urb(urb); -err_no_buf: +err_up_io: + up_read(&dev->io_rwsem); up(&dev->limit_sem); return retval; } @@ -325,6 +347,7 @@ static int lcd_probe(struct usb_interface *interface, kref_init(&dev->kref); sema_init(&dev->limit_sem, USB_LCD_CONCURRENT_WRITES); + init_rwsem(&dev->io_rwsem); init_usb_anchor(&dev->submitted); dev->udev = usb_get_dev(interface_to_usbdev(interface)); @@ -422,6 +445,12 @@ static void lcd_disconnect(struct usb_interface *interface) /* give back our minor */ usb_deregister_dev(interface, &lcd_class); + down_write(&dev->io_rwsem); + dev->disconnected = 1; + up_write(&dev->io_rwsem); + + usb_kill_anchored_urbs(&dev->submitted); + /* decrement our usage count */ kref_put(&dev->kref, lcd_delete); diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c index 6715a128e6c8..be0505b8b5d4 100644 --- a/drivers/usb/misc/yurex.c +++ b/drivers/usb/misc/yurex.c @@ -60,6 +60,7 @@ struct usb_yurex { struct kref kref; struct mutex io_mutex; + unsigned long disconnected:1; struct fasync_struct *async_queue; wait_queue_head_t waitq; @@ -107,6 +108,7 @@ static void yurex_delete(struct kref *kref) dev->int_buffer, dev->urb->transfer_dma); usb_free_urb(dev->urb); } + usb_put_intf(dev->interface); usb_put_dev(dev->udev); kfree(dev); } @@ -132,6 +134,7 @@ static void yurex_interrupt(struct urb *urb) switch (status) { case 0: /*success*/ break; + /* The device is terminated or messed up, give up */ case -EOVERFLOW: dev_err(&dev->interface->dev, "%s - overflow with length %d, actual length is %d\n", @@ -140,12 +143,13 @@ static void yurex_interrupt(struct urb *urb) case -ENOENT: case -ESHUTDOWN: case -EILSEQ: - /* The device is terminated, clean up */ + case -EPROTO: + case -ETIME: return; default: dev_err(&dev->interface->dev, "%s - unknown status received: %d\n", __func__, status); - goto exit; + return; } /* handle received message */ @@ -177,7 +181,6 @@ static void yurex_interrupt(struct urb *urb) break; } -exit: retval = usb_submit_urb(dev->urb, GFP_ATOMIC); if (retval) { dev_err(&dev->interface->dev, "%s - usb_submit_urb failed: %d\n", @@ -204,7 +207,7 @@ static int yurex_probe(struct usb_interface *interface, const struct usb_device_ init_waitqueue_head(&dev->waitq); dev->udev = usb_get_dev(interface_to_usbdev(interface)); - dev->interface = interface; + dev->interface = usb_get_intf(interface); /* set up the endpoint information */ iface_desc = interface->cur_altsetting; @@ -315,8 +318,9 @@ static void yurex_disconnect(struct usb_interface *interface) /* prevent more I/O from starting */ usb_poison_urb(dev->urb); + usb_poison_urb(dev->cntl_urb); mutex_lock(&dev->io_mutex); - dev->interface = NULL; + dev->disconnected = 1; mutex_unlock(&dev->io_mutex); /* wakeup waiters */ @@ -404,7 +408,7 @@ static ssize_t yurex_read(struct file *file, char __user *buffer, size_t count, dev = file->private_data; mutex_lock(&dev->io_mutex); - if (!dev->interface) { /* already disconnected */ + if (dev->disconnected) { /* already disconnected */ mutex_unlock(&dev->io_mutex); return -ENODEV; } @@ -439,7 +443,7 @@ static ssize_t yurex_write(struct file *file, const char __user *user_buffer, goto error; mutex_lock(&dev->io_mutex); - if (!dev->interface) { /* already disconnected */ + if (dev->disconnected) { /* already disconnected */ mutex_unlock(&dev->io_mutex); retval = -ENODEV; goto error; diff --git a/drivers/usb/renesas_usbhs/common.h b/drivers/usb/renesas_usbhs/common.h index d1a0a35ecfff..0824099b905e 100644 --- a/drivers/usb/renesas_usbhs/common.h +++ b/drivers/usb/renesas_usbhs/common.h @@ -211,6 +211,7 @@ struct usbhs_priv; /* DCPCTR */ #define BSTS (1 << 15) /* Buffer Status */ #define SUREQ (1 << 14) /* Sending SETUP Token */ +#define INBUFM (1 << 14) /* (PIPEnCTR) Transfer Buffer Monitor */ #define CSSTS (1 << 12) /* CSSTS Status */ #define ACLRM (1 << 9) /* Buffer Auto-Clear Mode */ #define SQCLR (1 << 8) /* Toggle Bit Clear */ diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c index 2a01ceb71641..86637cd066cf 100644 --- a/drivers/usb/renesas_usbhs/fifo.c +++ b/drivers/usb/renesas_usbhs/fifo.c @@ -89,7 +89,7 @@ static void __usbhsf_pkt_del(struct usbhs_pkt *pkt) list_del_init(&pkt->node); } -static struct usbhs_pkt *__usbhsf_pkt_get(struct usbhs_pipe *pipe) +struct usbhs_pkt *__usbhsf_pkt_get(struct usbhs_pipe *pipe) { return list_first_entry_or_null(&pipe->list, struct usbhs_pkt, node); } diff --git a/drivers/usb/renesas_usbhs/fifo.h b/drivers/usb/renesas_usbhs/fifo.h index 88d1816bcda2..c3d3cc35cee0 100644 --- a/drivers/usb/renesas_usbhs/fifo.h +++ b/drivers/usb/renesas_usbhs/fifo.h @@ -97,5 +97,6 @@ void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt, void *buf, int len, int zero, int sequence); struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt); void usbhs_pkt_start(struct usbhs_pipe *pipe); +struct usbhs_pkt *__usbhsf_pkt_get(struct usbhs_pipe *pipe); #endif /* RENESAS_USB_FIFO_H */ diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c index 4d571a5205e2..e5ef56991dba 100644 --- a/drivers/usb/renesas_usbhs/mod_gadget.c +++ b/drivers/usb/renesas_usbhs/mod_gadget.c @@ -722,8 +722,7 @@ static int __usbhsg_ep_set_halt_wedge(struct usb_ep *ep, int halt, int wedge) struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); struct device *dev = usbhsg_gpriv_to_dev(gpriv); unsigned long flags; - - usbhsg_pipe_disable(uep); + int ret = 0; dev_dbg(dev, "set halt %d (pipe %d)\n", halt, usbhs_pipe_number(pipe)); @@ -731,6 +730,18 @@ static int __usbhsg_ep_set_halt_wedge(struct usb_ep *ep, int halt, int wedge) /******************** spin lock ********************/ usbhs_lock(priv, flags); + /* + * According to usb_ep_set_halt()'s description, this function should + * return -EAGAIN if the IN endpoint has any queue or data. Note + * that the usbhs_pipe_is_dir_in() returns false if the pipe is an + * IN endpoint in the gadget mode. + */ + if (!usbhs_pipe_is_dir_in(pipe) && (__usbhsf_pkt_get(pipe) || + usbhs_pipe_contains_transmittable_data(pipe))) { + ret = -EAGAIN; + goto out; + } + if (halt) usbhs_pipe_stall(pipe); else @@ -741,10 +752,11 @@ static int __usbhsg_ep_set_halt_wedge(struct usb_ep *ep, int halt, int wedge) else usbhsg_status_clr(gpriv, USBHSG_STATUS_WEDGE); +out: usbhs_unlock(priv, flags); /******************** spin unlock ******************/ - return 0; + return ret; } static int usbhsg_ep_set_halt(struct usb_ep *ep, int value) diff --git a/drivers/usb/renesas_usbhs/pipe.c b/drivers/usb/renesas_usbhs/pipe.c index c4922b96c93b..9e5afdde1adb 100644 --- a/drivers/usb/renesas_usbhs/pipe.c +++ b/drivers/usb/renesas_usbhs/pipe.c @@ -277,6 +277,21 @@ int usbhs_pipe_is_accessible(struct usbhs_pipe *pipe) return -EBUSY; } +bool usbhs_pipe_contains_transmittable_data(struct usbhs_pipe *pipe) +{ + u16 val; + + /* Do not support for DCP pipe */ + if (usbhs_pipe_is_dcp(pipe)) + return false; + + val = usbhsp_pipectrl_get(pipe); + if (val & INBUFM) + return true; + + return false; +} + /* * PID ctrl */ diff --git a/drivers/usb/renesas_usbhs/pipe.h b/drivers/usb/renesas_usbhs/pipe.h index 3080423e600c..3b130529408b 100644 --- a/drivers/usb/renesas_usbhs/pipe.h +++ b/drivers/usb/renesas_usbhs/pipe.h @@ -83,6 +83,7 @@ void usbhs_pipe_clear(struct usbhs_pipe *pipe); void usbhs_pipe_clear_without_sequence(struct usbhs_pipe *pipe, int needs_bfre, int bfre_enable); int usbhs_pipe_is_accessible(struct usbhs_pipe *pipe); +bool usbhs_pipe_contains_transmittable_data(struct usbhs_pipe *pipe); void usbhs_pipe_enable(struct usbhs_pipe *pipe); void usbhs_pipe_disable(struct usbhs_pipe *pipe); void usbhs_pipe_stall(struct usbhs_pipe *pipe); diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 4b3a049561f3..e25352932ba7 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1030,6 +1030,9 @@ static const struct usb_device_id id_table_combined[] = { /* EZPrototypes devices */ { USB_DEVICE(EZPROTOTYPES_VID, HJELMSLUND_USB485_ISO_PID) }, { USB_DEVICE_INTERFACE_NUMBER(UNJO_VID, UNJO_ISODEBUG_V1_PID, 1) }, + /* Sienna devices */ + { USB_DEVICE(FTDI_VID, FTDI_SIENNA_PID) }, + { USB_DEVICE(ECHELON_VID, ECHELON_U20_PID) }, { } /* Terminating entry */ }; diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index f12d806220b4..22d66217cb41 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -39,6 +39,9 @@ #define FTDI_LUMEL_PD12_PID 0x6002 +/* Sienna Serial Interface by Secyourit GmbH */ +#define FTDI_SIENNA_PID 0x8348 + /* Cyber Cortex AV by Fabulous Silicon (http://fabuloussilicon.com) */ #define CYBER_CORTEX_AV_PID 0x8698 @@ -689,6 +692,12 @@ #define BANDB_ZZ_PROG1_USB_PID 0xBA02 /* + * Echelon USB Serial Interface + */ +#define ECHELON_VID 0x0920 +#define ECHELON_U20_PID 0x7500 + +/* * Intrepid Control Systems (http://www.intrepidcs.com/) ValueCAN and NeoVI */ #define INTREPID_VID 0x093C diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index d34779fe4a8d..e66a59ef43a1 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -1741,8 +1741,8 @@ static struct urb *keyspan_setup_urb(struct usb_serial *serial, int endpoint, ep_desc = find_ep(serial, endpoint); if (!ep_desc) { - /* leak the urb, something's wrong and the callers don't care */ - return urb; + usb_free_urb(urb); + return NULL; } if (usb_endpoint_xfer_int(ep_desc)) { ep_type_name = "INT"; diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 38e920ac7f82..06ab016be0b6 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -419,6 +419,7 @@ static void option_instat_callback(struct urb *urb); #define CINTERION_PRODUCT_PH8_AUDIO 0x0083 #define CINTERION_PRODUCT_AHXX_2RMNET 0x0084 #define CINTERION_PRODUCT_AHXX_AUDIO 0x0085 +#define CINTERION_PRODUCT_CLS8 0x00b0 /* Olivetti products */ #define OLIVETTI_VENDOR_ID 0x0b3c @@ -1154,6 +1155,14 @@ static const struct usb_device_id option_ids[] = { .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) | RSVD(3) }, { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG5, 0xff), .driver_info = RSVD(0) | RSVD(1) | NCTRL(2) | RSVD(3) }, + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1050, 0xff), /* Telit FN980 (rmnet) */ + .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) }, + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1051, 0xff), /* Telit FN980 (MBIM) */ + .driver_info = NCTRL(0) | RSVD(1) }, + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1052, 0xff), /* Telit FN980 (RNDIS) */ + .driver_info = NCTRL(2) | RSVD(3) }, + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1053, 0xff), /* Telit FN980 (ECM) */ + .driver_info = NCTRL(0) | RSVD(1) }, { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910), .driver_info = NCTRL(0) | RSVD(1) | RSVD(3) }, { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910_DUAL_MODEM), @@ -1847,6 +1856,8 @@ static const struct usb_device_id option_ids[] = { .driver_info = RSVD(4) }, { USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX_2RMNET, 0xff) }, { USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX_AUDIO, 0xff) }, + { USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_CLS8, 0xff), + .driver_info = RSVD(0) | RSVD(4) }, { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDM) }, { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDMNET) }, { USB_DEVICE(SIEMENS_VENDOR_ID, CINTERION_PRODUCT_HC25_MDM) }, diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index dd0ad67aa71e..9174ba2e06da 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -776,7 +776,6 @@ static void ti_close(struct usb_serial_port *port) struct ti_port *tport; int port_number; int status; - int do_unlock; unsigned long flags; tdev = usb_get_serial_data(port->serial); @@ -800,16 +799,13 @@ static void ti_close(struct usb_serial_port *port) "%s - cannot send close port command, %d\n" , __func__, status); - /* if mutex_lock is interrupted, continue anyway */ - do_unlock = !mutex_lock_interruptible(&tdev->td_open_close_lock); + mutex_lock(&tdev->td_open_close_lock); --tport->tp_tdev->td_open_port_count; - if (tport->tp_tdev->td_open_port_count <= 0) { + if (tport->tp_tdev->td_open_port_count == 0) { /* last port is closed, shut down interrupt urb */ usb_kill_urb(port->serial->port[0]->interrupt_in_urb); - tport->tp_tdev->td_open_port_count = 0; } - if (do_unlock) - mutex_unlock(&tdev->td_open_close_lock); + mutex_unlock(&tdev->td_open_close_lock); } diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index a3179fea38c8..8f066bb55d7d 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -314,10 +314,7 @@ static void serial_cleanup(struct tty_struct *tty) serial = port->serial; owner = serial->type->driver.owner; - mutex_lock(&serial->disc_mutex); - if (!serial->disconnected) - usb_autopm_put_interface(serial->interface); - mutex_unlock(&serial->disc_mutex); + usb_autopm_put_interface(serial->interface); usb_serial_put(serial); module_put(owner); diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index 79314d8c94a4..ca3bd58f2025 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -559,6 +559,10 @@ static int firm_send_command(struct usb_serial_port *port, __u8 command, command_port = port->serial->port[COMMAND_PORT]; command_info = usb_get_serial_port_data(command_port); + + if (command_port->bulk_out_size < datasize + 1) + return -EIO; + mutex_lock(&command_info->mutex); command_info->command_finished = false; @@ -632,6 +636,7 @@ static void firm_setup_port(struct tty_struct *tty) struct device *dev = &port->dev; struct whiteheat_port_settings port_settings; unsigned int cflag = tty->termios.c_cflag; + speed_t baud; port_settings.port = port->port_number + 1; @@ -692,11 +697,13 @@ static void firm_setup_port(struct tty_struct *tty) dev_dbg(dev, "%s - XON = %2x, XOFF = %2x\n", __func__, port_settings.xon, port_settings.xoff); /* get the baud rate wanted */ - port_settings.baud = tty_get_baud_rate(tty); - dev_dbg(dev, "%s - baud rate = %d\n", __func__, port_settings.baud); + baud = tty_get_baud_rate(tty); + port_settings.baud = cpu_to_le32(baud); + dev_dbg(dev, "%s - baud rate = %u\n", __func__, baud); /* fixme: should set validated settings */ - tty_encode_baud_rate(tty, port_settings.baud, port_settings.baud); + tty_encode_baud_rate(tty, baud, baud); + /* handle any settings that aren't specified in the tty structure */ port_settings.lloop = 0; diff --git a/drivers/usb/serial/whiteheat.h b/drivers/usb/serial/whiteheat.h index 00398149cd8d..269e727a92f9 100644 --- a/drivers/usb/serial/whiteheat.h +++ b/drivers/usb/serial/whiteheat.h @@ -87,7 +87,7 @@ struct whiteheat_simple { struct whiteheat_port_settings { __u8 port; /* port number (1 to N) */ - __u32 baud; /* any value 7 - 460800, firmware calculates + __le32 baud; /* any value 7 - 460800, firmware calculates best fit; arrives little endian */ __u8 bits; /* 5, 6, 7, or 8 */ __u8 stop; /* 1 or 2, default 1 (2 = 1.5 if bits = 5) */ diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index 05b80211290d..f3c4caf64051 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -67,7 +67,6 @@ static const char* host_info(struct Scsi_Host *host) static int slave_alloc (struct scsi_device *sdev) { struct us_data *us = host_to_us(sdev->host); - int maxp; /* * Set the INQUIRY transfer length to 36. We don't use any of @@ -77,15 +76,6 @@ static int slave_alloc (struct scsi_device *sdev) sdev->inquiry_len = 36; /* - * USB has unusual scatter-gather requirements: the length of each - * scatterlist element except the last must be divisible by the - * Bulk maxpacket value. Fortunately this value is always a - * power of 2. Inform the block layer about this requirement. - */ - maxp = usb_maxpacket(us->pusb_dev, us->recv_bulk_pipe, 0); - blk_queue_virt_boundary(sdev->request_queue, maxp - 1); - - /* * Some host controllers may have alignment requirements. * We'll play it safe by requiring 512-byte alignment always. */ diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index 047c5922618f..0d044d59317e 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -789,30 +789,10 @@ static int uas_slave_alloc(struct scsi_device *sdev) { struct uas_dev_info *devinfo = (struct uas_dev_info *)sdev->host->hostdata; - int maxp; sdev->hostdata = devinfo; /* - * We have two requirements here. We must satisfy the requirements - * of the physical HC and the demands of the protocol, as we - * definitely want no additional memory allocation in this path - * ruling out using bounce buffers. - * - * For a transmission on USB to continue we must never send - * a package that is smaller than maxpacket. Hence the length of each - * scatterlist element except the last must be divisible by the - * Bulk maxpacket value. - * If the HC does not ensure that through SG, - * the upper layer must do that. We must assume nothing - * about the capabilities off the HC, so we use the most - * pessimistic requirement. - */ - - maxp = usb_maxpacket(devinfo->udev, devinfo->data_in_pipe, 0); - blk_queue_virt_boundary(sdev->request_queue, maxp - 1); - - /* * The protocol has no requirements on alignment in the strict sense. * Controllers may or may not have alignment restrictions. * As this is not exported, we use an extremely conservative guess. diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index bcfdb55fd198..a3cf27120164 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -4416,18 +4416,20 @@ static int tcpm_fw_get_caps(struct tcpm_port *port, /* USB data support is optional */ ret = fwnode_property_read_string(fwnode, "data-role", &cap_str); if (ret == 0) { - port->typec_caps.data = typec_find_port_data_role(cap_str); - if (port->typec_caps.data < 0) - return -EINVAL; + ret = typec_find_port_data_role(cap_str); + if (ret < 0) + return ret; + port->typec_caps.data = ret; } ret = fwnode_property_read_string(fwnode, "power-role", &cap_str); if (ret < 0) return ret; - port->typec_caps.type = typec_find_port_power_role(cap_str); - if (port->typec_caps.type < 0) - return -EINVAL; + ret = typec_find_port_power_role(cap_str); + if (ret < 0) + return ret; + port->typec_caps.type = ret; port->port_type = port->typec_caps.type; if (port->port_type == TYPEC_PORT_SNK) diff --git a/drivers/usb/typec/ucsi/displayport.c b/drivers/usb/typec/ucsi/displayport.c index 6c103697c582..d99700cb4dca 100644 --- a/drivers/usb/typec/ucsi/displayport.c +++ b/drivers/usb/typec/ucsi/displayport.c @@ -75,6 +75,8 @@ static int ucsi_displayport_enter(struct typec_altmode *alt) if (cur != 0xff) { mutex_unlock(&dp->con->lock); + if (dp->con->port_altmode[cur] == alt) + return 0; return -EBUSY; } diff --git a/drivers/usb/typec/ucsi/ucsi_ccg.c b/drivers/usb/typec/ucsi/ucsi_ccg.c index 8e9f8fba55af..95378d8f7e4e 100644 --- a/drivers/usb/typec/ucsi/ucsi_ccg.c +++ b/drivers/usb/typec/ucsi/ucsi_ccg.c @@ -195,7 +195,6 @@ struct ucsi_ccg { /* fw build with vendor information */ u16 fw_build; - bool run_isr; /* flag to call ISR routine during resume */ struct work_struct pm_work; }; @@ -224,18 +223,6 @@ static int ccg_read(struct ucsi_ccg *uc, u16 rab, u8 *data, u32 len) if (quirks && quirks->max_read_len) max_read_len = quirks->max_read_len; - if (uc->fw_build == CCG_FW_BUILD_NVIDIA && - uc->fw_version <= CCG_OLD_FW_VERSION) { - mutex_lock(&uc->lock); - /* - * Do not schedule pm_work to run ISR in - * ucsi_ccg_runtime_resume() after pm_runtime_get_sync() - * since we are already in ISR path. - */ - uc->run_isr = false; - mutex_unlock(&uc->lock); - } - pm_runtime_get_sync(uc->dev); while (rem_len > 0) { msgs[1].buf = &data[len - rem_len]; @@ -278,18 +265,6 @@ static int ccg_write(struct ucsi_ccg *uc, u16 rab, u8 *data, u32 len) msgs[0].len = len + sizeof(rab); msgs[0].buf = buf; - if (uc->fw_build == CCG_FW_BUILD_NVIDIA && - uc->fw_version <= CCG_OLD_FW_VERSION) { - mutex_lock(&uc->lock); - /* - * Do not schedule pm_work to run ISR in - * ucsi_ccg_runtime_resume() after pm_runtime_get_sync() - * since we are already in ISR path. - */ - uc->run_isr = false; - mutex_unlock(&uc->lock); - } - pm_runtime_get_sync(uc->dev); status = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); if (status < 0) { @@ -1133,7 +1108,6 @@ static int ucsi_ccg_probe(struct i2c_client *client, uc->ppm.sync = ucsi_ccg_sync; uc->dev = dev; uc->client = client; - uc->run_isr = true; mutex_init(&uc->lock); INIT_WORK(&uc->work, ccg_update_firmware); INIT_WORK(&uc->pm_work, ccg_pm_workaround_work); @@ -1195,6 +1169,8 @@ static int ucsi_ccg_probe(struct i2c_client *client, pm_runtime_set_active(uc->dev); pm_runtime_enable(uc->dev); + pm_runtime_use_autosuspend(uc->dev); + pm_runtime_set_autosuspend_delay(uc->dev, 5000); pm_runtime_idle(uc->dev); return 0; @@ -1237,7 +1213,6 @@ static int ucsi_ccg_runtime_resume(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct ucsi_ccg *uc = i2c_get_clientdata(client); - bool schedule = true; /* * Firmware version 3.1.10 or earlier, built for NVIDIA has known issue @@ -1245,17 +1220,8 @@ static int ucsi_ccg_runtime_resume(struct device *dev) * Schedule a work to call ISR as a workaround. */ if (uc->fw_build == CCG_FW_BUILD_NVIDIA && - uc->fw_version <= CCG_OLD_FW_VERSION) { - mutex_lock(&uc->lock); - if (!uc->run_isr) { - uc->run_isr = true; - schedule = false; - } - mutex_unlock(&uc->lock); - - if (schedule) - schedule_work(&uc->pm_work); - } + uc->fw_version <= CCG_OLD_FW_VERSION) + schedule_work(&uc->pm_work); return 0; } diff --git a/drivers/usb/usb-skeleton.c b/drivers/usb/usb-skeleton.c index f101347e3ea3..e0cf11f798c5 100644 --- a/drivers/usb/usb-skeleton.c +++ b/drivers/usb/usb-skeleton.c @@ -59,6 +59,7 @@ struct usb_skel { spinlock_t err_lock; /* lock for errors */ struct kref kref; struct mutex io_mutex; /* synchronize I/O with disconnect */ + unsigned long disconnected:1; wait_queue_head_t bulk_in_wait; /* to wait for an ongoing read */ }; #define to_skel_dev(d) container_of(d, struct usb_skel, kref) @@ -71,6 +72,7 @@ static void skel_delete(struct kref *kref) struct usb_skel *dev = to_skel_dev(kref); usb_free_urb(dev->bulk_in_urb); + usb_put_intf(dev->interface); usb_put_dev(dev->udev); kfree(dev->bulk_in_buffer); kfree(dev); @@ -122,10 +124,7 @@ static int skel_release(struct inode *inode, struct file *file) return -ENODEV; /* allow the device to be autosuspended */ - mutex_lock(&dev->io_mutex); - if (dev->interface) - usb_autopm_put_interface(dev->interface); - mutex_unlock(&dev->io_mutex); + usb_autopm_put_interface(dev->interface); /* decrement the count on our device */ kref_put(&dev->kref, skel_delete); @@ -238,7 +237,7 @@ static ssize_t skel_read(struct file *file, char *buffer, size_t count, if (rv < 0) return rv; - if (!dev->interface) { /* disconnect() was called */ + if (dev->disconnected) { /* disconnect() was called */ rv = -ENODEV; goto exit; } @@ -420,7 +419,7 @@ static ssize_t skel_write(struct file *file, const char *user_buffer, /* this lock makes sure we don't submit URBs to gone devices */ mutex_lock(&dev->io_mutex); - if (!dev->interface) { /* disconnect() was called */ + if (dev->disconnected) { /* disconnect() was called */ mutex_unlock(&dev->io_mutex); retval = -ENODEV; goto error; @@ -505,7 +504,7 @@ static int skel_probe(struct usb_interface *interface, init_waitqueue_head(&dev->bulk_in_wait); dev->udev = usb_get_dev(interface_to_usbdev(interface)); - dev->interface = interface; + dev->interface = usb_get_intf(interface); /* set up the endpoint information */ /* use only the first bulk-in and bulk-out endpoints */ @@ -571,7 +570,7 @@ static void skel_disconnect(struct usb_interface *interface) /* prevent more I/O from starting */ mutex_lock(&dev->io_mutex); - dev->interface = NULL; + dev->disconnected = 1; mutex_unlock(&dev->io_mutex); usb_kill_anchored_urbs(&dev->submitted); |