dev->name, __func__ , ##arg); } while (0)
static unsigned int isoc_debug;
-module_param(isoc_debug,int,0644);
-MODULE_PARM_DESC(isoc_debug,"enable debug messages [isoc transfers]");
+module_param(isoc_debug, int, 0644);
+MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
#define em28xx_isocdbg(fmt, arg...) do {\
if (isoc_debug) \
printk(KERN_INFO "%s %s :"fmt, \
- dev->name, __FUNCTION__ , ##arg); } while (0)
+ dev->name, __func__ , ##arg); } while (0)
#define BUFFER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */
/*
* Announces that a buffer were filled and request the next
*/
-static void inline buffer_filled (struct em28xx *dev,
+static inline void buffer_filled(struct em28xx *dev,
struct em28xx_dmaqueue *dma_q,
struct em28xx_buffer *buf)
{
unsigned char *outp, unsigned long len)
{
void *fieldstart, *startwrite, *startread;
- int linesdone, currlinedone, offset, lencopy,remain;
+ int linesdone, currlinedone, offset, lencopy, remain;
- if(dev->frame_size != buf->vb.size){
+ if (dev->frame_size != buf->vb.size) {
em28xx_errdev("size %i and buf.length %lu are different!\n",
dev->frame_size, buf->vb.size);
return;
em28xx_isocdbg("frame is not complete\n");
len += 4;
} else
- p +=4;
+ p += 4;
startread = p;
remain = len;
lencopy = dev->bytesperline - currlinedone;
lencopy = lencopy > remain ? remain : lencopy;
- if((char*)startwrite + lencopy > (char*)outp + buf->vb.size) {
+ if ((char *)startwrite + lencopy > (char *)outp + buf->vb.size) {
em28xx_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
- ((char*)startwrite + lencopy) - ((char*)outp + buf->vb.size));
- lencopy = remain = (char*)outp + buf->vb.size - (char*)startwrite;
+ ((char *)startwrite + lencopy) -
+ ((char *)outp + buf->vb.size));
+ lencopy = remain = (char *)outp + buf->vb.size - (char *)startwrite;
}
BUG_ON(lencopy <= 0);
memcpy(startwrite, startread, lencopy);
BUG_ON(lencopy <= 0);
- if((char*)startwrite + lencopy > (char*)outp + buf->vb.size) {
+ if ((char *)startwrite + lencopy > (char *)outp + buf->vb.size) {
em28xx_isocdbg("Overflow of %zi bytes past buffer end (2)\n",
- ((char*)startwrite + lencopy) - ((char*)outp + buf->vb.size));
- lencopy = remain = (char*)outp + buf->vb.size - (char*)startwrite;
+ ((char *)startwrite + lencopy) -
+ ((char *)outp + buf->vb.size));
+ lencopy = remain = (char *)outp + buf->vb.size -
+ (char *)startwrite;
}
- if(lencopy <= 0) break;
+ if (lencopy <= 0)
+ break;
memcpy(startwrite, startread, lencopy);
dma_q->pos += len;
}
-static void inline print_err_status (struct em28xx *dev,
+static inline void print_err_status(struct em28xx *dev,
int packet, int status)
{
char *errmsg = "Unknown";
- switch(status) {
+ switch (status) {
case -ENOENT:
errmsg = "unlinked synchronuously";
break;
errmsg = "Device does not respond";
break;
}
- if (packet<0) {
+ if (packet < 0) {
em28xx_isocdbg("URB status %d [%s].\n", status, errmsg);
} else {
em28xx_isocdbg("URB packet %d, status %d [%s].\n",
/*
* video-buf generic routine to get the next available buffer
*/
-static int inline get_next_buf (struct em28xx_dmaqueue *dma_q,
+static inline int get_next_buf(struct em28xx_dmaqueue *dma_q,
struct em28xx_buffer **buf)
{
struct em28xx *dev = container_of(dma_q, struct em28xx, vidq);
if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
return 0;
- if (urb->status<0) {
- print_err_status (dev,-1,urb->status);
+ if (urb->status < 0) {
+ print_err_status(dev, -1, urb->status);
if (urb->status == -ENOENT)
return 0;
}
- buf=dev->isoc_ctl.buf;
+ buf = dev->isoc_ctl.buf;
if (!buf) {
- rc=get_next_buf (dma_q, &buf);
- if (rc<=0)
+ rc = get_next_buf(dma_q, &buf);
+ if (rc <= 0)
return rc;
}
- outp = videobuf_to_vmalloc (&buf->vb);
+ outp = videobuf_to_vmalloc(&buf->vb);
for (i = 0; i < urb->number_of_packets; i++) {
int status = urb->iso_frame_desc[i].status;
- if (status<0) {
- print_err_status (dev,i,status);
+ if (status < 0) {
+ print_err_status(dev, i, status);
if (urb->iso_frame_desc[i].status != -EPROTO)
continue;
}
- len=urb->iso_frame_desc[i].actual_length - 4;
+ len = urb->iso_frame_desc[i].actual_length - 4;
if (urb->iso_frame_desc[i].actual_length <= 0) {
/* em28xx_isocdbg("packet %d is empty",i); - spammy */
/* FIXME - are the fields the right way around? */
em28xx_isocdbg("Video frame, length=%i, %s\n", len,
(p[2] & 1)? "top" : "bottom");
- em28xx_isocdbg("Current buffer is: outp = 0x%p, len = %i\n", outp, (int)buf->vb.size);
+ em28xx_isocdbg("Current buffer is: outp = 0x%p,"
+ " len = %i\n", outp, (int)buf->vb.size);
if (p[2] & 1) {
if (buf->receiving) {
- buffer_filled (dev, dma_q, buf);
- rc=get_next_buf (dma_q, &buf);
- if (rc<=0)
+ buffer_filled(dev, dma_q, buf);
+ rc = get_next_buf(dma_q, &buf);
+ if (rc <= 0)
return rc;
- outp = videobuf_to_vmalloc (&buf->vb);
+ outp = videobuf_to_vmalloc(&buf->vb);
}
buf->top_field = 1;
- } else {
+ } else
buf->top_field = 0;
- }
buf->receiving = 1;
dma_q->pos = 0;
- } else if (p[0]==0x33 && p[1]==0x95 && p[2]==0x00) {
+ } else if (p[0] == 0x33 && p[1] == 0x95 && p[2] == 0x00) {
em28xx_isocdbg("VBI HEADER!!!\n");
}
{
struct em28xx_dmaqueue *dma_q = urb->context;
struct em28xx *dev = container_of(dma_q, struct em28xx, vidq);
- int rc,i;
+ int rc, i;
unsigned long flags;
- spin_lock_irqsave(&dev->slock,flags);
+ spin_lock_irqsave(&dev->slock, flags);
/* Copy data from URB */
- rc=em28xx_isoc_copy(urb);
+ rc = em28xx_isoc_copy(urb);
/* Reset urb buffers */
for (i = 0; i < urb->number_of_packets; i++) {
}
urb->status = 0;
- if ((urb->status = usb_submit_urb(urb, GFP_ATOMIC))) {
+ urb->status = usb_submit_urb(urb, GFP_ATOMIC);
+ if (urb->status) {
em28xx_err("urb resubmit failed (error=%i)\n",
urb->status);
}
- spin_unlock_irqrestore(&dev->slock,flags);
+ spin_unlock_irqrestore(&dev->slock, flags);
}
/*
em28xx_isocdbg("em28xx: called em28xx_uninit_isoc\n");
- dev->isoc_ctl.nfields=-1;
- dev->isoc_ctl.buf=NULL;
+ dev->isoc_ctl.nfields = -1;
+ dev->isoc_ctl.buf = NULL;
for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
- urb=dev->isoc_ctl.urb[i];
+ urb = dev->isoc_ctl.urb[i];
if (urb) {
usb_kill_urb(urb);
usb_unlink_urb(urb);
dev->isoc_ctl.transfer_buffer[i] = NULL;
}
- kfree (dev->isoc_ctl.urb);
- kfree (dev->isoc_ctl.transfer_buffer);
- dev->isoc_ctl.urb=NULL;
- dev->isoc_ctl.transfer_buffer=NULL;
+ kfree(dev->isoc_ctl.urb);
+ kfree(dev->isoc_ctl.transfer_buffer);
+ dev->isoc_ctl.urb = NULL;
+ dev->isoc_ctl.transfer_buffer = NULL;
- dev->isoc_ctl.num_bufs=0;
+ dev->isoc_ctl.num_bufs = 0;
del_timer(&dev->vidq.timeout);
em28xx_capture_start(dev, 0);
dev->isoc_ctl.transfer_buffer[i] = usb_buffer_alloc(dev->udev,
sb_size, GFP_KERNEL, &urb->transfer_dma);
if (!dev->isoc_ctl.transfer_buffer[i]) {
- em28xx_err ("unable to allocate %i bytes for transfer"
+ em28xx_err("unable to allocate %i bytes for transfer"
" buffer %i%s\n",
sb_size, i,
in_interrupt()?" while in int":"");
'desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK'
should also be using 'desc.bInterval'
*/
- pipe=usb_rcvisocpipe(dev->udev, 0x82);
+ pipe = usb_rcvisocpipe(dev->udev, 0x82);
usb_fill_int_urb(urb, dev->udev, pipe,
dev->isoc_ctl.transfer_buffer[i], sb_size,
em28xx_irq_callback, dma_q, 1);
return 0;
}
-static int em28xx_start_thread( struct em28xx_dmaqueue *dma_q)
+static int em28xx_start_thread(struct em28xx_dmaqueue *dma_q)
{
struct em28xx *dev = container_of(dma_q, struct em28xx, vidq);
- int i,rc = 0;
+ int i, rc = 0;
em28xx_videodbg("Called em28xx_start_thread\n");
}
}
- if (rc<0)
+ if (rc < 0)
return rc;
return 0;
static void em28xx_vid_timeout(unsigned long data)
{
- struct em28xx *dev = (struct em28xx*)data;
+ struct em28xx *dev = (struct em28xx *)data;
struct em28xx_dmaqueue *vidq = &dev->vidq;
struct em28xx_buffer *buf;
unsigned long flags;
- spin_lock_irqsave(&dev->slock,flags);
+ spin_lock_irqsave(&dev->slock, flags);
list_for_each_entry(buf, vidq->active.next, vb.queue) {
list_del(&buf->vb.queue);
/* Instead of trying to restart, just sets timeout again */
mod_timer(&vidq->timeout, jiffies + BUFFER_TIMEOUT);
- spin_unlock_irqrestore(&dev->slock,flags);
+ spin_unlock_irqrestore(&dev->slock, flags);
}
/* ------------------------------------------------------------------
if (0 == *count)
*count = EM28XX_DEF_BUF;
- if (*count < EM28XX_MIN_BUF) {
- *count=EM28XX_MIN_BUF;
- }
+ if (*count < EM28XX_MIN_BUF)
+ *count = EM28XX_MIN_BUF;
return 0;
}
enum v4l2_field field)
{
struct em28xx_fh *fh = vq->priv_data;
- struct em28xx_buffer *buf = container_of(vb,struct em28xx_buffer,vb);
+ struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb);
struct em28xx *dev = fh->dev;
struct em28xx_dmaqueue *vidq = &dev->vidq;
int rc = 0, urb_init = 0;
}
if (!dev->isoc_ctl.num_bufs)
- urb_init=1;
+ urb_init = 1;
if (urb_init) {
- rc = em28xx_prepare_isoc(dev, EM28XX_NUM_PACKETS, EM28XX_NUM_BUFS);
- if (rc<0)
+ rc = em28xx_prepare_isoc(dev, EM28XX_NUM_PACKETS,
+ EM28XX_NUM_BUFS);
+ if (rc < 0)
goto fail;
rc = em28xx_start_thread(vidq);
- if (rc<0)
+ if (rc < 0)
goto fail;
}
return 0;
fail:
- free_buffer(vq,buf);
+ free_buffer(vq, buf);
return rc;
}
{
struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb);
struct em28xx_fh *fh = vq->priv_data;
- struct em28xx *dev = fh->dev;
+ struct em28xx *dev = fh->dev;
struct em28xx_dmaqueue *vidq = &dev->vidq;
buf->vb.state = VIDEOBUF_QUEUED;
static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb)
{
- struct em28xx_buffer *buf = container_of(vb,struct em28xx_buffer,vb);
+ struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb);
struct em28xx_fh *fh = vq->priv_data;
- struct em28xx *dev = (struct em28xx*)fh->dev;
+ struct em28xx *dev = (struct em28xx *)fh->dev;
em28xx_isocdbg("em28xx: called buffer_release\n");
- free_buffer(vq,buf);
+ free_buffer(vq, buf);
}
static struct videobuf_queue_ops em28xx_video_qops = {
}
#ifdef CONFIG_VIDEO_V4L1_COMPAT
-static int vidiocgmbuf (struct file *file, void *priv, struct video_mbuf *mbuf)
+static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
{
- struct em28xx_fh *fh=priv;
+ struct em28xx_fh *fh = priv;
- return videobuf_cgmbuf (&fh->vb_vidq, mbuf, 8);
+ return videobuf_cgmbuf(&fh->vb_vidq, mbuf, 8);
}
#endif
*/
static ssize_t
em28xx_v4l2_read(struct file *filp, char __user * buf, size_t count,
- loff_t * pos)
+ loff_t *pos)
{
struct em28xx_fh *fh = filp->private_data;
struct em28xx *dev = fh->dev;
projects / linux-2.6 / commitdiff