diff options
| author | Jelle Foks <jelle@foks.8m.com> | 2006-03-09 17:44:07 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-06-25 02:05:07 -0300 |
| commit | f14ac0bc455a255c48f9110080e8889c6d65cec2 (patch) | |
| tree | 0f53313126882618e50182dc98444651affd2a38 /drivers/media/video/cx88/cx88-mpeg.c | |
| parent | 774dd5d9bdcbfe2efb3425e8a0be0b4d01a65c26 (diff) | |
V4L/DVB (3426): PATCH cx88-mpeg: cx8802_restart_queue() for blackbird
Fixes "cx8802_restart_queue: queue is empty" storm in syslog
Signed-off-by: Jelle Foks <jelle@foks.8m.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/cx88/cx88-mpeg.c')
| -rw-r--r-- | drivers/media/video/cx88/cx88-mpeg.c | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/drivers/media/video/cx88/cx88-mpeg.c b/drivers/media/video/cx88/cx88-mpeg.c index e1b38ff0c8a..a9d7795a8e1 100644 --- a/drivers/media/video/cx88/cx88-mpeg.c +++ b/drivers/media/video/cx88/cx88-mpeg.c @@ -143,10 +143,43 @@ static int cx8802_restart_queue(struct cx8802_dev *dev, struct cx88_buffer *buf; struct list_head *item; - dprintk( 0, "cx8802_restart_queue\n" ); + dprintk( 1, "cx8802_restart_queue\n" ); if (list_empty(&q->active)) { - dprintk( 0, "cx8802_restart_queue: queue is empty\n" ); + struct cx88_buffer *prev; + prev = NULL; + + dprintk(1, "cx8802_restart_queue: queue is empty\n" ); + + for (;;) { + if (list_empty(&q->queued)) + return 0; + buf = list_entry(q->queued.next, struct cx88_buffer, vb.queue); + if (NULL == prev) { + list_del(&buf->vb.queue); + list_add_tail(&buf->vb.queue,&q->active); + cx8802_start_dma(dev, q, buf); + buf->vb.state = STATE_ACTIVE; + buf->count = q->count++; + mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); + dprintk(1,"[%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,&q->active); + buf->vb.state = STATE_ACTIVE; + buf->count = q->count++; + prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma); + dprintk(1,"[%p/%d] restart_queue - move to active\n", + buf,buf->vb.i); + } else { + return 0; + } + prev = buf; + } return 0; } |