diff options
Diffstat (limited to 'drivers/staging/dabusb/dabusb.c')
| -rw-r--r-- | drivers/staging/dabusb/dabusb.c | 338 |
1 files changed, 175 insertions, 163 deletions
diff --git a/drivers/staging/dabusb/dabusb.c b/drivers/staging/dabusb/dabusb.c index f3e25e91366d..21768a627750 100644 --- a/drivers/staging/dabusb/dabusb.c +++ b/drivers/staging/dabusb/dabusb.c @@ -33,8 +33,8 @@ #include <linux/vmalloc.h> #include <linux/slab.h> #include <linux/init.h> -#include <asm/uaccess.h> -#include <asm/atomic.h> +#include <linux/uaccess.h> +#include <linux/atomic.h> #include <linux/delay.h> #include <linux/usb.h> #include <linux/mutex.h> @@ -66,28 +66,29 @@ static struct usb_driver dabusb_driver; /*-------------------------------------------------------------------*/ -static int dabusb_add_buf_tail (pdabusb_t s, struct list_head *dst, struct list_head *src) +static int dabusb_add_buf_tail(pdabusb_t s, struct list_head *dst, + struct list_head *src) { unsigned long flags; struct list_head *tmp; int ret = 0; - spin_lock_irqsave (&s->lock, flags); + spin_lock_irqsave(&s->lock, flags); - if (list_empty (src)) { - // no elements in source buffer + if (list_empty(src)) { + /* no elements in source buffer */ ret = -1; goto err; } tmp = src->next; - list_move_tail (tmp, dst); + list_move_tail(tmp, dst); - err: spin_unlock_irqrestore (&s->lock, flags); +err: spin_unlock_irqrestore(&s->lock, flags); return ret; } /*-------------------------------------------------------------------*/ #ifdef DEBUG -static void dump_urb (struct urb *urb) +static void dump_urb(struct urb *urb) { dbg("urb :%p", urb); dbg("dev :%p", urb->dev); @@ -107,26 +108,26 @@ static void dump_urb (struct urb *urb) } #endif /*-------------------------------------------------------------------*/ -static int dabusb_cancel_queue (pdabusb_t s, struct list_head *q) +static int dabusb_cancel_queue(pdabusb_t s, struct list_head *q) { unsigned long flags; pbuff_t b; dbg("dabusb_cancel_queue"); - spin_lock_irqsave (&s->lock, flags); + spin_lock_irqsave(&s->lock, flags); list_for_each_entry(b, q, buff_list) { #ifdef DEBUG dump_urb(b->purb); #endif - usb_unlink_urb (b->purb); + usb_unlink_urb(b->purb); } - spin_unlock_irqrestore (&s->lock, flags); + spin_unlock_irqrestore(&s->lock, flags); return 0; } /*-------------------------------------------------------------------*/ -static int dabusb_free_queue (struct list_head *q) +static int dabusb_free_queue(struct list_head *q) { struct list_head *tmp; struct list_head *p; @@ -134,7 +135,7 @@ static int dabusb_free_queue (struct list_head *q) dbg("dabusb_free_queue"); for (p = q->next; p != q;) { - b = list_entry (p, buff_t, buff_list); + b = list_entry(p, buff_t, buff_list); #ifdef DEBUG dump_urb(b->purb); @@ -142,23 +143,23 @@ static int dabusb_free_queue (struct list_head *q) kfree(b->purb->transfer_buffer); usb_free_urb(b->purb); tmp = p->next; - list_del (p); - kfree (b); + list_del(p); + kfree(b); p = tmp; } return 0; } /*-------------------------------------------------------------------*/ -static int dabusb_free_buffers (pdabusb_t s) +static int dabusb_free_buffers(pdabusb_t s) { unsigned long flags; dbg("dabusb_free_buffers"); spin_lock_irqsave(&s->lock, flags); - dabusb_free_queue (&s->free_buff_list); - dabusb_free_queue (&s->rec_buff_list); + dabusb_free_queue(&s->free_buff_list); + dabusb_free_queue(&s->rec_buff_list); spin_unlock_irqrestore(&s->lock, flags); @@ -166,7 +167,7 @@ static int dabusb_free_buffers (pdabusb_t s) return 0; } /*-------------------------------------------------------------------*/ -static void dabusb_iso_complete (struct urb *purb) +static void dabusb_iso_complete(struct urb *purb) { pbuff_t b = purb->context; pdabusb_t s = b->s; @@ -177,42 +178,45 @@ static void dabusb_iso_complete (struct urb *purb) dbg("dabusb_iso_complete"); - // process if URB was not killed + /* process if URB was not killed */ if (purb->status != -ENOENT) { - unsigned int pipe = usb_rcvisocpipe (purb->dev, _DABUSB_ISOPIPE); - int pipesize = usb_maxpacket (purb->dev, pipe, usb_pipeout (pipe)); + unsigned int pipe = usb_rcvisocpipe(purb->dev, _DABUSB_ISOPIPE); + int pipesize = usb_maxpacket(purb->dev, pipe, + usb_pipeout(pipe)); for (i = 0; i < purb->number_of_packets; i++) if (!purb->iso_frame_desc[i].status) { len = purb->iso_frame_desc[i].actual_length; if (len <= pipesize) { - memcpy (buf + dst, buf + purb->iso_frame_desc[i].offset, len); + memcpy(buf + dst, buf + purb->iso_frame_desc[i].offset, len); dst += len; - } - else + } else dev_err(&purb->dev->dev, - "dabusb_iso_complete: invalid len %d\n", len); - } - else - dev_warn(&purb->dev->dev, "dabusb_iso_complete: corrupted packet status: %d\n", purb->iso_frame_desc[i].status); + "dabusb_iso_complete: invalid len %d\n", + len); + } else + dev_warn(&purb->dev->dev, + "dabusb_iso_complete: corrupted packet status: %d\n", + purb->iso_frame_desc[i].status); if (dst != purb->actual_length) dev_err(&purb->dev->dev, "dst!=purb->actual_length:%d!=%d\n", dst, purb->actual_length); } - if (atomic_dec_and_test (&s->pending_io) && !s->remove_pending && s->state != _stopped) { + if (atomic_dec_and_test(&s->pending_io) && + !s->remove_pending && s->state != _stopped) { s->overruns++; dev_err(&purb->dev->dev, "overrun (%d)\n", s->overruns); } - wake_up (&s->wait); + wake_up(&s->wait); } /*-------------------------------------------------------------------*/ -static int dabusb_alloc_buffers (pdabusb_t s) +static int dabusb_alloc_buffers(pdabusb_t s) { int transfer_len = 0; pbuff_t b; - unsigned int pipe = usb_rcvisocpipe (s->usbdev, _DABUSB_ISOPIPE); - int pipesize = usb_maxpacket (s->usbdev, pipe, usb_pipeout (pipe)); + unsigned int pipe = usb_rcvisocpipe(s->usbdev, _DABUSB_ISOPIPE); + int pipesize = usb_maxpacket(s->usbdev, pipe, usb_pipeout(pipe)); int packets = _ISOPIPESIZE / pipesize; int transfer_buffer_length = packets * pipesize; int i; @@ -221,7 +225,7 @@ static int dabusb_alloc_buffers (pdabusb_t s) pipesize, packets, transfer_buffer_length); while (transfer_len < (s->total_buffer_size << 10)) { - b = kzalloc(sizeof (buff_t), GFP_KERNEL); + b = kzalloc(sizeof(buff_t), GFP_KERNEL); if (!b) { dev_err(&s->usbdev->dev, "kzalloc(sizeof(buff_t))==NULL\n"); @@ -231,14 +235,15 @@ static int dabusb_alloc_buffers (pdabusb_t s) b->purb = usb_alloc_urb(packets, GFP_KERNEL); if (!b->purb) { dev_err(&s->usbdev->dev, "usb_alloc_urb == NULL\n"); - kfree (b); + kfree(b); goto err; } - b->purb->transfer_buffer = kmalloc (transfer_buffer_length, GFP_KERNEL); + b->purb->transfer_buffer = kmalloc(transfer_buffer_length, + GFP_KERNEL); if (!b->purb->transfer_buffer) { - kfree (b->purb); - kfree (b); + kfree(b->purb); + kfree(b); dev_err(&s->usbdev->dev, "kmalloc(%d)==NULL\n", transfer_buffer_length); goto err; @@ -258,18 +263,18 @@ static int dabusb_alloc_buffers (pdabusb_t s) } transfer_len += transfer_buffer_length; - list_add_tail (&b->buff_list, &s->free_buff_list); + list_add_tail(&b->buff_list, &s->free_buff_list); } s->got_mem = transfer_len; return 0; - err: - dabusb_free_buffers (s); +err: + dabusb_free_buffers(s); return -ENOMEM; } /*-------------------------------------------------------------------*/ -static int dabusb_bulk (pdabusb_t s, pbulk_transfer_t pb) +static int dabusb_bulk(pdabusb_t s, pbulk_transfer_t pb) { int ret; unsigned int pipe; @@ -278,25 +283,26 @@ static int dabusb_bulk (pdabusb_t s, pbulk_transfer_t pb) dbg("dabusb_bulk"); if (!pb->pipe) - pipe = usb_rcvbulkpipe (s->usbdev, 2); + pipe = usb_rcvbulkpipe(s->usbdev, 2); else - pipe = usb_sndbulkpipe (s->usbdev, 2); + pipe = usb_sndbulkpipe(s->usbdev, 2); - ret=usb_bulk_msg(s->usbdev, pipe, pb->data, pb->size, &actual_length, 100); - if(ret<0) { + ret = usb_bulk_msg(s->usbdev, pipe, pb->data, + pb->size, &actual_length, 100); + if (ret < 0) { dev_err(&s->usbdev->dev, "usb_bulk_msg failed(%d)\n", ret); - if (usb_set_interface (s->usbdev, _DABUSB_IF, 1) < 0) { + if (usb_set_interface(s->usbdev, _DABUSB_IF, 1) < 0) { dev_err(&s->usbdev->dev, "set_interface failed\n"); return -EINVAL; } } - if( ret == -EPIPE ) { + if (ret == -EPIPE) { dev_warn(&s->usbdev->dev, "CLEAR_FEATURE request to remove STALL condition.\n"); - if(usb_clear_halt(s->usbdev, usb_pipeendpoint(pipe))) + if (usb_clear_halt(s->usbdev, usb_pipeendpoint(pipe))) dev_err(&s->usbdev->dev, "request failed\n"); } @@ -304,11 +310,11 @@ static int dabusb_bulk (pdabusb_t s, pbulk_transfer_t pb) return ret; } /* --------------------------------------------------------------------- */ -static int dabusb_writemem (pdabusb_t s, int pos, const unsigned char *data, +static int dabusb_writemem(pdabusb_t s, int pos, const unsigned char *data, int len) { int ret; - unsigned char *transfer_buffer = kmalloc (len, GFP_KERNEL); + unsigned char *transfer_buffer = kmalloc(len, GFP_KERNEL); if (!transfer_buffer) { dev_err(&s->usbdev->dev, @@ -316,21 +322,22 @@ static int dabusb_writemem (pdabusb_t s, int pos, const unsigned char *data, return -ENOMEM; } - memcpy (transfer_buffer, data, len); + memcpy(transfer_buffer, data, len); - ret=usb_control_msg(s->usbdev, usb_sndctrlpipe( s->usbdev, 0 ), 0xa0, 0x40, pos, 0, transfer_buffer, len, 300); + ret = usb_control_msg(s->usbdev, usb_sndctrlpipe(s->usbdev, 0), + 0xa0, 0x40, pos, 0, transfer_buffer, len, 300); - kfree (transfer_buffer); + kfree(transfer_buffer); return ret; } /* --------------------------------------------------------------------- */ -static int dabusb_8051_reset (pdabusb_t s, unsigned char reset_bit) +static int dabusb_8051_reset(pdabusb_t s, unsigned char reset_bit) { - dbg("dabusb_8051_reset: %d",reset_bit); - return dabusb_writemem (s, CPUCS_REG, &reset_bit, 1); + dbg("dabusb_8051_reset: %d", reset_bit); + return dabusb_writemem(s, CPUCS_REG, &reset_bit, 1); } /* --------------------------------------------------------------------- */ -static int dabusb_loadmem (pdabusb_t s, const char *fname) +static int dabusb_loadmem(pdabusb_t s, const char *fname) { int ret; const struct ihex_binrec *rec; @@ -344,7 +351,7 @@ static int dabusb_loadmem (pdabusb_t s, const char *fname) "Failed to load \"dabusb/firmware.fw\": %d\n", ret); goto out; } - ret = dabusb_8051_reset (s, 1); + ret = dabusb_8051_reset(s, 1); for (rec = (const struct ihex_binrec *)fw->data; rec; rec = ihex_next_binrec(rec)) { @@ -361,7 +368,7 @@ static int dabusb_loadmem (pdabusb_t s, const char *fname) break; } } - ret = dabusb_8051_reset (s, 0); + ret = dabusb_8051_reset(s, 0); release_firmware(fw); out: dbg("dabusb_loadmem: exit"); @@ -369,7 +376,7 @@ static int dabusb_loadmem (pdabusb_t s, const char *fname) return ret; } /* --------------------------------------------------------------------- */ -static int dabusb_fpga_clear (pdabusb_t s, pbulk_transfer_t b) +static int dabusb_fpga_clear(pdabusb_t s, pbulk_transfer_t b) { b->size = 4; b->data[0] = 0x2a; @@ -379,10 +386,10 @@ static int dabusb_fpga_clear (pdabusb_t s, pbulk_transfer_t b) dbg("dabusb_fpga_clear"); - return dabusb_bulk (s, b); + return dabusb_bulk(s, b); } /* --------------------------------------------------------------------- */ -static int dabusb_fpga_init (pdabusb_t s, pbulk_transfer_t b) +static int dabusb_fpga_init(pdabusb_t s, pbulk_transfer_t b) { b->size = 4; b->data[0] = 0x2c; @@ -392,12 +399,12 @@ static int dabusb_fpga_init (pdabusb_t s, pbulk_transfer_t b) dbg("dabusb_fpga_init"); - return dabusb_bulk (s, b); + return dabusb_bulk(s, b); } /* --------------------------------------------------------------------- */ -static int dabusb_fpga_download (pdabusb_t s, const char *fname) +static int dabusb_fpga_download(pdabusb_t s, const char *fname) { - pbulk_transfer_t b = kmalloc (sizeof (bulk_transfer_t), GFP_KERNEL); + pbulk_transfer_t b = kmalloc(sizeof(bulk_transfer_t), GFP_KERNEL); const struct firmware *fw; unsigned int blen, n; int ret; @@ -419,8 +426,8 @@ static int dabusb_fpga_download (pdabusb_t s, const char *fname) } b->pipe = 1; - ret = dabusb_fpga_clear (s, b); - mdelay (10); + ret = dabusb_fpga_clear(s, b); + mdelay(10); blen = fw->data[73] + (fw->data[72] << 8); dbg("Bitstream len: %i", blen); @@ -431,19 +438,19 @@ static int dabusb_fpga_download (pdabusb_t s, const char *fname) b->data[3] = 60; for (n = 0; n <= blen + 60; n += 60) { - // some cclks for startup + /* some cclks for startup */ b->size = 64; - memcpy (b->data + 4, fw->data + 74 + n, 60); - ret = dabusb_bulk (s, b); + memcpy(b->data + 4, fw->data + 74 + n, 60); + ret = dabusb_bulk(s, b); if (ret < 0) { dev_err(&s->usbdev->dev, "dabusb_bulk failed.\n"); break; } - mdelay (1); + mdelay(1); } - ret = dabusb_fpga_init (s, b); - kfree (b); + ret = dabusb_fpga_init(s, b); + kfree(b); release_firmware(fw); dbg("exit dabusb_fpga_download"); @@ -451,12 +458,12 @@ static int dabusb_fpga_download (pdabusb_t s, const char *fname) return ret; } -static int dabusb_stop (pdabusb_t s) +static int dabusb_stop(pdabusb_t s) { dbg("dabusb_stop"); s->state = _stopped; - dabusb_cancel_queue (s, &s->rec_buff_list); + dabusb_cancel_queue(s, &s->rec_buff_list); dbg("pending_io: %d", s->pending_io.counter); @@ -464,50 +471,53 @@ static int dabusb_stop (pdabusb_t s) return 0; } -static int dabusb_startrek (pdabusb_t s) +static int dabusb_startrek(pdabusb_t s) { if (!s->got_mem && s->state != _started) { dbg("dabusb_startrek"); - if (dabusb_alloc_buffers (s) < 0) + if (dabusb_alloc_buffers(s) < 0) return -ENOMEM; - dabusb_stop (s); + dabusb_stop(s); s->state = _started; s->readptr = 0; } - if (!list_empty (&s->free_buff_list)) { + if (!list_empty(&s->free_buff_list)) { pbuff_t end; int ret; - while (!dabusb_add_buf_tail (s, &s->rec_buff_list, &s->free_buff_list)) { + while (!dabusb_add_buf_tail(s, &s->rec_buff_list, &s->free_buff_list)) { - dbg("submitting: end:%p s->rec_buff_list:%p", s->rec_buff_list.prev, &s->rec_buff_list); + dbg("submitting: end:%p s->rec_buff_list:%p", + s->rec_buff_list.prev, &s->rec_buff_list); - end = list_entry (s->rec_buff_list.prev, buff_t, buff_list); + end = list_entry(s->rec_buff_list.prev, + buff_t, buff_list); - ret = usb_submit_urb (end->purb, GFP_KERNEL); + ret = usb_submit_urb(end->purb, GFP_KERNEL); if (ret) { dev_err(&s->usbdev->dev, "usb_submit_urb returned:%d\n", ret); - if (dabusb_add_buf_tail (s, &s->free_buff_list, &s->rec_buff_list)) + if (dabusb_add_buf_tail(s, &s->free_buff_list, + &s->rec_buff_list)) dev_err(&s->usbdev->dev, "startrek: dabusb_add_buf_tail failed\n"); break; - } - else - atomic_inc (&s->pending_io); + } else + atomic_inc(&s->pending_io); } - dbg("pending_io: %d",s->pending_io.counter); + dbg("pending_io: %d", s->pending_io.counter); } return 0; } -static ssize_t dabusb_read (struct file *file, char __user *buf, size_t count, loff_t * ppos) +static ssize_t dabusb_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) { - pdabusb_t s = (pdabusb_t) file->private_data; + pdabusb_t s = (pdabusb_t)file->private_data; unsigned long flags; unsigned ret = 0; int rem; @@ -528,11 +538,11 @@ static ssize_t dabusb_read (struct file *file, char __user *buf, size_t count, l return -EIO; while (count > 0) { - dabusb_startrek (s); + dabusb_startrek(s); - spin_lock_irqsave (&s->lock, flags); + spin_lock_irqsave(&s->lock, flags); - if (list_empty (&s->rec_buff_list)) { + if (list_empty(&s->rec_buff_list)) { spin_unlock_irqrestore(&s->lock, flags); @@ -541,30 +551,30 @@ static ssize_t dabusb_read (struct file *file, char __user *buf, size_t count, l goto err; } - b = list_entry (s->rec_buff_list.next, buff_t, buff_list); + b = list_entry(s->rec_buff_list.next, buff_t, buff_list); purb = b->purb; spin_unlock_irqrestore(&s->lock, flags); if (purb->status == -EINPROGRESS) { - if (file->f_flags & O_NONBLOCK) // return nonblocking - { + /* return nonblocking */ + if (file->f_flags & O_NONBLOCK) { if (!ret) ret = -EAGAIN; goto err; } - interruptible_sleep_on (&s->wait); + interruptible_sleep_on(&s->wait); - if (signal_pending (current)) { + if (signal_pending(current)) { if (!ret) ret = -ERESTARTSYS; goto err; } - spin_lock_irqsave (&s->lock, flags); + spin_lock_irqsave(&s->lock, flags); - if (list_empty (&s->rec_buff_list)) { + if (list_empty(&s->rec_buff_list)) { spin_unlock_irqrestore(&s->lock, flags); dev_err(&s->usbdev->dev, "error: still no buffer available.\n"); @@ -578,16 +588,20 @@ static ssize_t dabusb_read (struct file *file, char __user *buf, size_t count, l goto err; } - rem = purb->actual_length - s->readptr; // set remaining bytes to copy + /* set remaining bytes to copy */ + rem = purb->actual_length - s->readptr; if (count >= rem) cnt = rem; else cnt = count; - dbg("copy_to_user:%p %p %d",buf, purb->transfer_buffer + s->readptr, cnt); + dbg("copy_to_user:%p %p %d", buf, + purb->transfer_buffer + s->readptr, cnt); - if (copy_to_user (buf, purb->transfer_buffer + s->readptr, cnt)) { + if (copy_to_user(buf, + purb->transfer_buffer + s->readptr, + cnt)) { dev_err(&s->usbdev->dev, "read: copy_to_user failed\n"); if (!ret) ret = -EFAULT; @@ -600,18 +614,19 @@ static ssize_t dabusb_read (struct file *file, char __user *buf, size_t count, l ret += cnt; if (s->readptr == purb->actual_length) { - // finished, take next buffer - if (dabusb_add_buf_tail (s, &s->free_buff_list, &s->rec_buff_list)) + /* finished, take next buffer */ + if (dabusb_add_buf_tail(s, &s->free_buff_list, + &s->rec_buff_list)) dev_err(&s->usbdev->dev, "read: dabusb_add_buf_tail failed\n"); s->readptr = 0; } } - err: //mutex_unlock(&s->mutex); +err: /*mutex_unlock(&s->mutex);*/ return ret; } -static int dabusb_open (struct inode *inode, struct file *file) +static int dabusb_open(struct inode *inode, struct file *file) { int devnum = iminor(inode); pdabusb_t s; @@ -632,11 +647,11 @@ static int dabusb_open (struct inode *inode, struct file *file) return -EBUSY; msleep_interruptible(500); - if (signal_pending (current)) + if (signal_pending(current)) return -EAGAIN; mutex_lock(&s->mutex); } - if (usb_set_interface (s->usbdev, _DABUSB_IF, 1) < 0) { + if (usb_set_interface(s->usbdev, _DABUSB_IF, 1) < 0) { mutex_unlock(&s->mutex); dev_err(&s->usbdev->dev, "set_interface failed\n"); return -EINVAL; @@ -651,31 +666,30 @@ static int dabusb_open (struct inode *inode, struct file *file) return r; } -static int dabusb_release (struct inode *inode, struct file *file) +static int dabusb_release(struct inode *inode, struct file *file) { - pdabusb_t s = (pdabusb_t) file->private_data; + pdabusb_t s = (pdabusb_t)file->private_data; dbg("dabusb_release"); mutex_lock(&s->mutex); - dabusb_stop (s); - dabusb_free_buffers (s); + dabusb_stop(s); + dabusb_free_buffers(s); mutex_unlock(&s->mutex); if (!s->remove_pending) { - if (usb_set_interface (s->usbdev, _DABUSB_IF, 0) < 0) + if (usb_set_interface(s->usbdev, _DABUSB_IF, 0) < 0) dev_err(&s->usbdev->dev, "set_interface failed\n"); - } - else - wake_up (&s->remove_ok); + } else + wake_up(&s->remove_ok); s->opened = 0; return 0; } -static long dabusb_ioctl (struct file *file, unsigned int cmd, unsigned long arg) +static long dabusb_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - pdabusb_t s = (pdabusb_t) file->private_data; + pdabusb_t s = (pdabusb_t)file->private_data; pbulk_transfer_t pbulk; int ret = 0; int version = DABUSB_VERSION; @@ -703,20 +717,20 @@ static long dabusb_ioctl (struct file *file, unsigned int cmd, unsigned long arg break; } - ret=dabusb_bulk (s, pbulk); - if(ret==0) + ret = dabusb_bulk(s, pbulk); + if (ret == 0) if (copy_to_user((void __user *)arg, pbulk, sizeof(bulk_transfer_t))) ret = -EFAULT; - kfree (pbulk); + kfree(pbulk); break; case IOCTL_DAB_OVERRUNS: - ret = put_user (s->overruns, (unsigned int __user *) arg); + ret = put_user(s->overruns, (unsigned int __user *) arg); break; case IOCTL_DAB_VERSION: - ret = put_user (version, (unsigned int __user *) arg); + ret = put_user(version, (unsigned int __user *) arg); break; default: @@ -727,8 +741,7 @@ static long dabusb_ioctl (struct file *file, unsigned int cmd, unsigned long arg return ret; } -static const struct file_operations dabusb_fops = -{ +static const struct file_operations dabusb_fops = { .owner = THIS_MODULE, .llseek = no_llseek, .read = dabusb_read, @@ -751,7 +764,7 @@ static struct usb_class_driver dabusb_class = { /* --------------------------------------------------------------------- */ -static int dabusb_probe (struct usb_interface *intf, +static int dabusb_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct usb_device *usbdev = interface_to_usbdev(intf); @@ -780,54 +793,53 @@ static int dabusb_probe (struct usb_interface *intf, s->usbdev = usbdev; s->devnum = intf->minor; - if (usb_reset_configuration (usbdev) < 0) { + if (usb_reset_configuration(usbdev) < 0) { dev_err(&intf->dev, "reset_configuration failed\n"); goto reject; } if (le16_to_cpu(usbdev->descriptor.idProduct) == 0x2131) { - dabusb_loadmem (s, NULL); + dabusb_loadmem(s, NULL); goto reject; - } - else { - dabusb_fpga_download (s, NULL); + } else { + dabusb_fpga_download(s, NULL); - if (usb_set_interface (s->usbdev, _DABUSB_IF, 0) < 0) { + if (usb_set_interface(s->usbdev, _DABUSB_IF, 0) < 0) { dev_err(&intf->dev, "set_interface failed\n"); goto reject; } } dbg("bound to interface: %d", intf->altsetting->desc.bInterfaceNumber); - usb_set_intfdata (intf, s); + usb_set_intfdata(intf, s); mutex_unlock(&s->mutex); retval = usb_register_dev(intf, &dabusb_class); if (retval) { - usb_set_intfdata (intf, NULL); + usb_set_intfdata(intf, NULL); return -ENOMEM; } return 0; - reject: +reject: mutex_unlock(&s->mutex); s->usbdev = NULL; return -ENODEV; } -static void dabusb_disconnect (struct usb_interface *intf) +static void dabusb_disconnect(struct usb_interface *intf) { wait_queue_t __wait; - pdabusb_t s = usb_get_intfdata (intf); + pdabusb_t s = usb_get_intfdata(intf); dbg("dabusb_disconnect"); init_waitqueue_entry(&__wait, current); - usb_set_intfdata (intf, NULL); + usb_set_intfdata(intf, NULL); if (s) { - usb_deregister_dev (intf, &dabusb_class); + usb_deregister_dev(intf, &dabusb_class); s->remove_pending = 1; - wake_up (&s->wait); + wake_up(&s->wait); add_wait_queue(&s->remove_ok, &__wait); set_current_state(TASK_UNINTERRUPTIBLE); if (s->state == _started) @@ -840,13 +852,13 @@ static void dabusb_disconnect (struct usb_interface *intf) } } -static struct usb_device_id dabusb_ids [] = { - // { USB_DEVICE(0x0547, 0x2131) }, /* An2131 chip, no boot ROM */ +static struct usb_device_id dabusb_ids[] = { + /* { USB_DEVICE(0x0547, 0x2131) },*/ /* An2131 chip, no boot ROM */ { USB_DEVICE(0x0547, 0x9999) }, { } /* Terminating entry */ }; -MODULE_DEVICE_TABLE (usb, dabusb_ids); +MODULE_DEVICE_TABLE(usb, dabusb_ids); static struct usb_driver dabusb_driver = { .name = "dabusb", @@ -857,7 +869,7 @@ static struct usb_driver dabusb_driver = { /* --------------------------------------------------------------------- */ -static int __init dabusb_init (void) +static int __init dabusb_init(void) { int retval; unsigned u; @@ -865,15 +877,15 @@ static int __init dabusb_init (void) /* initialize struct */ for (u = 0; u < NRDABUSB; u++) { pdabusb_t s = &dabusb[u]; - memset (s, 0, sizeof (dabusb_t)); - mutex_init (&s->mutex); + memset(s, 0, sizeof(dabusb_t)); + mutex_init(&s->mutex); s->usbdev = NULL; s->total_buffer_size = buffers; - init_waitqueue_head (&s->wait); - init_waitqueue_head (&s->remove_ok); - spin_lock_init (&s->lock); - INIT_LIST_HEAD (&s->free_buff_list); - INIT_LIST_HEAD (&s->rec_buff_list); + init_waitqueue_head(&s->wait); + init_waitqueue_head(&s->remove_ok); + spin_lock_init(&s->lock); + INIT_LIST_HEAD(&s->free_buff_list); + INIT_LIST_HEAD(&s->rec_buff_list); } /* register misc device */ @@ -890,25 +902,25 @@ out: return retval; } -static void __exit dabusb_cleanup (void) +static void __exit dabusb_cleanup(void) { dbg("dabusb_cleanup"); - usb_deregister (&dabusb_driver); + usb_deregister(&dabusb_driver); } /* --------------------------------------------------------------------- */ -MODULE_AUTHOR( DRIVER_AUTHOR ); -MODULE_DESCRIPTION( DRIVER_DESC ); +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); MODULE_FIRMWARE("dabusb/firmware.fw"); MODULE_FIRMWARE("dabusb/bitstream.bin"); module_param(buffers, int, 0); -MODULE_PARM_DESC (buffers, "Number of buffers (default=256)"); +MODULE_PARM_DESC(buffers, "Number of buffers (default=256)"); -module_init (dabusb_init); -module_exit (dabusb_cleanup); +module_init(dabusb_init); +module_exit(dabusb_cleanup); /* --------------------------------------------------------------------- */ |