diff options
author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-04-09 01:49:19 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-05-18 00:40:14 -0300 |
commit | c144c037153765f572ab4ffea277467370dd97dd (patch) | |
tree | bd2ae75202e3bd929589f76b2f835eddbd4a8b5e /drivers/staging/tm6000/tm6000-video.c | |
parent | 576d5739a44af5fcbacfe504a8d989a5c7ea8fc7 (diff) | |
download | op-kernel-dev-c144c037153765f572ab4ffea277467370dd97dd.zip op-kernel-dev-c144c037153765f572ab4ffea277467370dd97dd.tar.gz |
V4L/DVB (12835): tm6000: Cleanups to work like em28xx-video
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/staging/tm6000/tm6000-video.c')
-rw-r--r-- | drivers/staging/tm6000/tm6000-video.c | 181 |
1 files changed, 16 insertions, 165 deletions
diff --git a/drivers/staging/tm6000/tm6000-video.c b/drivers/staging/tm6000/tm6000-video.c index 13be5a0..5f2865e 100644 --- a/drivers/staging/tm6000/tm6000-video.c +++ b/drivers/staging/tm6000/tm6000-video.c @@ -153,16 +153,6 @@ static inline void buffer_filled(struct tm6000_core *dev, struct tm6000_dmaqueue *dma_q, struct tm6000_buffer *buf) { - /* Nobody is waiting something to be done, just return */ - if (!waitqueue_active(&buf->vb.done)) { - mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT); - - printk(KERN_ERR "tm6000: buffer underrun at %ld\n", - jiffies); - - return; - } - /* Advice that buffer was filled */ dprintk(dev, V4L2_DEBUG_ISOC, "[%p/%d] wakeup\n", buf, buf->vb.i); buf->vb.state = VIDEOBUF_DONE; @@ -558,10 +548,6 @@ ret: tm6000_err("urb resubmit failed (error=%i)\n", urb->status); - /* Data filled, reset watchdog */ - if (rc >= 0) - mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT); - spin_unlock_irqrestore(&dev->slock, flags); } @@ -594,23 +580,15 @@ static void tm6000_uninit_isoc(struct tm6000_core *dev) 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; } /* - * Stop video thread - FIXME: Can be easily removed - */ -static void tm6000_stop_thread(struct tm6000_dmaqueue *dma_q) -{ - struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); - - tm6000_uninit_isoc(dev); -} - -/* * Allocate URBs and start IRQ */ static int tm6000_prepare_isoc(struct tm6000_core *dev, unsigned int framesize) @@ -622,7 +600,6 @@ static int tm6000_prepare_isoc(struct tm6000_core *dev, unsigned int framesize) /* De-allocates all pending stuff */ tm6000_uninit_isoc(dev); - pipe = usb_rcvisocpipe(dev->udev, dev->isoc_in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); @@ -643,8 +620,7 @@ static int tm6000_prepare_isoc(struct tm6000_core *dev, unsigned int framesize) dev->isoc_ctl.num_bufs = num_bufs; - dev->isoc_ctl.urb = kmalloc(sizeof(void *)*num_bufs, - GFP_KERNEL); + dev->isoc_ctl.urb = kmalloc(sizeof(void *)*num_bufs, GFP_KERNEL); if (!dev->isoc_ctl.urb) { tm6000_err("cannot alloc memory for usb buffers\n"); return -ENOMEM; @@ -690,8 +666,7 @@ static int tm6000_prepare_isoc(struct tm6000_core *dev, unsigned int framesize) usb_fill_bulk_urb(urb, dev->udev, pipe, dev->isoc_ctl.transfer_buffer[i], sb_size, tm6000_irq_callback, dma_q); -// urb->interval = dev->isoc_in->desc.bInterval; - urb->interval = 2; + urb->interval = dev->isoc_in->desc.bInterval; urb->number_of_packets = max_packets; urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; @@ -704,11 +679,10 @@ static int tm6000_prepare_isoc(struct tm6000_core *dev, unsigned int framesize) return 0; } -static int tm6000_start_thread( struct tm6000_dmaqueue *dma_q, - struct tm6000_buffer *buf) +static int tm6000_start_thread( struct tm6000_core *dev) { - struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); - int i,rc; + struct tm6000_dmaqueue *dma_q = &dev->vidq; + int i; dma_q->frame=0; dma_q->ini_jiffies=jiffies; @@ -717,7 +691,7 @@ static int tm6000_start_thread( struct tm6000_dmaqueue *dma_q, /* submit urbs and enables IRQ */ for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { - rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); + int rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); if (rc) { tm6000_err("submit of urb %i failed (error=%i)\n", i, rc); @@ -726,99 +700,9 @@ static int tm6000_start_thread( struct tm6000_dmaqueue *dma_q, } } - if (rc<0) - return rc; - return 0; } -static int restart_video_queue(struct tm6000_dmaqueue *dma_q) -{ - struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); - - struct tm6000_buffer *buf, *prev; - struct list_head *item; - - dprintk(dev, V4L2_DEBUG_QUEUE, "%s dma_q=0x%08lx\n", - __FUNCTION__,(unsigned long)dma_q); - - if (!list_empty(&dma_q->active)) { - buf = list_entry(dma_q->active.next, struct tm6000_buffer, vb.queue); - dprintk(dev, V4L2_DEBUG_QUEUE, - "restart_queue [%p/%d]: restart dma\n", buf, buf->vb.i); - - dprintk(dev, V4L2_DEBUG_QUEUE, "Restarting video dma\n"); - tm6000_stop_thread(dma_q); - tm6000_start_thread(dma_q, buf); - - /* cancel all outstanding capture / vbi requests */ - list_for_each(item,&dma_q->active) { - buf = list_entry(item, struct tm6000_buffer, vb.queue); - - list_del(&buf->vb.queue); - buf->vb.state = VIDEOBUF_ERROR; - wake_up(&buf->vb.done); - } - mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT); - - return 0; - } - - prev = NULL; - for (;;) { - if (list_empty(&dma_q->queued)) - return 0; - buf = list_entry(dma_q->queued.next, struct tm6000_buffer, vb.queue); - if (NULL == prev) { - list_del(&buf->vb.queue); - list_add_tail(&buf->vb.queue,&dma_q->active); - - dprintk(dev, V4L2_DEBUG_QUEUE, "Restarting video dma\n"); - tm6000_stop_thread(dma_q); - tm6000_start_thread(dma_q, buf); - - buf->vb.state = VIDEOBUF_ACTIVE; - mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT); - dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] restart_queue -" - " first active\n", buf, buf->vb.i); - - } else if (prev->vb.width == buf->vb.width && - prev->vb.height == buf->vb.height && - prev->fmt == buf->fmt) { - list_del(&buf->vb.queue); - list_add_tail(&buf->vb.queue,&dma_q->active); - buf->vb.state = VIDEOBUF_ACTIVE; - dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] restart_queue -" - " move to active\n",buf,buf->vb.i); - } else { - return 0; - } - prev = buf; - } -} - -static void tm6000_vid_timeout(unsigned long data) -{ - struct tm6000_core *dev = (struct tm6000_core*)data; - struct tm6000_dmaqueue *vidq = &dev->vidq; - struct tm6000_buffer *buf; - unsigned long flags; - - spin_lock_irqsave(&dev->slock,flags); - while (!list_empty(&vidq->active)) { - buf = list_entry(vidq->active.next, struct tm6000_buffer, - vb.queue); - list_del(&buf->vb.queue); - buf->vb.state = VIDEOBUF_ERROR; - wake_up(&buf->vb.done); - dprintk(dev, V4L2_DEBUG_QUEUE, "tm6000/0: [%p/%d] timeout\n", - buf, buf->vb.i); - } - - restart_video_queue(vidq); - spin_unlock_irqrestore(&dev->slock,flags); -} - /* ------------------------------------------------------------------ Videobuf operations ------------------------------------------------------------------*/ @@ -892,9 +776,13 @@ buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, if (urb_init) { rc = tm6000_prepare_isoc(dev, buf->vb.size); + if (rc < 0) + goto fail; + rc = tm6000_start_thread(dev); if (rc < 0) goto fail; + } buf->vb.state = VIDEOBUF_PREPARED; @@ -912,46 +800,14 @@ buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) struct tm6000_fh *fh = vq->priv_data; struct tm6000_core *dev = fh->dev; struct tm6000_dmaqueue *vidq = &dev->vidq; - struct tm6000_buffer *prev; - - if (!list_empty(&vidq->queued)) { - list_add_tail(&buf->vb.queue,&vidq->queued); - buf->vb.state = VIDEOBUF_QUEUED; - dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue - " - "append to queued\n", buf, buf->vb.i); - } else if (list_empty(&vidq->active)) { - list_add_tail(&buf->vb.queue,&vidq->active); - buf->vb.state = VIDEOBUF_ACTIVE; - mod_timer(&vidq->timeout, jiffies+BUFFER_TIMEOUT); - dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue - " - "first active\n", buf, buf->vb.i); - tm6000_start_thread(vidq, buf); - } else { - prev = list_entry(vidq->active.prev, struct tm6000_buffer, vb.queue); - if (prev->vb.width == buf->vb.width && - prev->vb.height == buf->vb.height && - prev->fmt == buf->fmt) { - list_add_tail(&buf->vb.queue,&vidq->active); - buf->vb.state = VIDEOBUF_ACTIVE; - dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue -" - " append to active\n", buf, buf->vb.i); - } else { - list_add_tail(&buf->vb.queue,&vidq->queued); - buf->vb.state = VIDEOBUF_QUEUED; - dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue -" - " first queued\n", buf, buf->vb.i); - } - } + + buf->vb.state = VIDEOBUF_QUEUED; + list_add_tail(&buf->vb.queue, &vidq->active); } static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb) { struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb); - struct tm6000_fh *fh = vq->priv_data; - struct tm6000_core *dev = (struct tm6000_core*)fh->dev; - struct tm6000_dmaqueue *vidq = &dev->vidq; - - tm6000_stop_thread(vidq); free_buffer(vq,buf); } @@ -1547,7 +1403,6 @@ static int tm6000_release(struct inode *inode, struct file *file) { struct tm6000_fh *fh = file->private_data; struct tm6000_core *dev = fh->dev; - struct tm6000_dmaqueue *vidq = &dev->vidq; int minor = iminor(inode); dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: close called (minor=%d, users=%d)\n",minor,dev->users); @@ -1555,7 +1410,7 @@ static int tm6000_release(struct inode *inode, struct file *file) dev->users--; if (!dev->users) { - tm6000_stop_thread(vidq); + tm6000_uninit_isoc(dev); videobuf_mmap_free(&fh->vb_vidq); } @@ -1641,10 +1496,6 @@ int tm6000_v4l2_register(struct tm6000_core *dev) INIT_LIST_HEAD(&dev->vidq.active); INIT_LIST_HEAD(&dev->vidq.queued); - dev->vidq.timeout.function = tm6000_vid_timeout; - dev->vidq.timeout.data = (unsigned long)dev; - init_timer(&dev->vidq.timeout); - memcpy (dev->vfd, &tm6000_template, sizeof(*(dev->vfd))); dev->vfd->debug=tm6000_debug; |