diff options
| author | Andy Walls <awalls@radix.net> | 2008-11-28 00:04:21 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-12-30 09:38:28 -0200 |
| commit | b80e1074c734416987486b7b76b6479faa73f1e2 (patch) | |
| tree | 4f1432c4755b9aa686dd8764a24e404eaa3a550e /drivers/media/video/cx18/cx18-queue.h | |
| parent | be2c6db122467c6b6b55d93dd08d89cb2ee7821c (diff) | |
V4L/DVB (9800): cx18: Eliminate q_io from stream buffer handling
Eliminate q_io from stream buffer handling in anticipation of upcoming
changes in buffer handling. q_io was a holdover from ivtv and it's function
in cx18 was trivial and not necessary. We just push things back onto the
front of q_full now, instead of maintaining a 1 buffer q_io queue.
Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cx18/cx18-queue.h')
| -rw-r--r-- | drivers/media/video/cx18/cx18-queue.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/media/video/cx18/cx18-queue.h b/drivers/media/video/cx18/cx18-queue.h index ff50a2b7e5b..d184e55ce62 100644 --- a/drivers/media/video/cx18/cx18-queue.h +++ b/drivers/media/video/cx18/cx18-queue.h @@ -43,9 +43,24 @@ static inline void cx18_buf_sync_for_device(struct cx18_stream *s, void cx18_buf_swap(struct cx18_buffer *buf); /* cx18_queue utility functions */ -void cx18_queue_init(struct cx18_queue *q); +void _cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf, + struct cx18_queue *q, int to_front); + +static inline void cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf, - struct cx18_queue *q); + struct cx18_queue *q) +{ + _cx18_enqueue(s, buf, q, 0); /* FIFO */ +} + +static inline +void cx18_push(struct cx18_stream *s, struct cx18_buffer *buf, + struct cx18_queue *q) +{ + _cx18_enqueue(s, buf, q, 1); /* LIFO */ +} + +void cx18_queue_init(struct cx18_queue *q); struct cx18_buffer *cx18_dequeue(struct cx18_stream *s, struct cx18_queue *q); struct cx18_buffer *cx18_queue_get_buf(struct cx18_stream *s, u32 id, u32 bytesused); |