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author | David S. Miller <davem@davemloft.net> | 2009-12-12 04:12:17 +0300 |
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committer | David S. Miller <davem@davemloft.net> | 2009-12-12 04:12:17 +0300 |
commit | 501706565b2d4d2d40d0d301d5411ede099b8a6f (patch) | |
tree | 142a18bf1f1e74a09dbfa27540b893ade0fd797d /drivers/media/video/cx18/cx18-queue.h | |
parent | e93737b0f0159a61772894943199fd3b6f315641 (diff) | |
parent | 2fe77b81c77eed92c4c0439f74c8148a295b4a86 (diff) | |
download | linux-501706565b2d4d2d40d0d301d5411ede099b8a6f.tar.xz |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
include/net/tcp.h
Diffstat (limited to 'drivers/media/video/cx18/cx18-queue.h')
-rw-r--r-- | drivers/media/video/cx18/cx18-queue.h | 41 |
1 files changed, 34 insertions, 7 deletions
diff --git a/drivers/media/video/cx18/cx18-queue.h b/drivers/media/video/cx18/cx18-queue.h index 4de06269d88f..88a6d34ad3bb 100644 --- a/drivers/media/video/cx18/cx18-queue.h +++ b/drivers/media/video/cx18/cx18-queue.h @@ -40,32 +40,59 @@ static inline void cx18_buf_sync_for_device(struct cx18_stream *s, s->buf_size, s->dma); } +void _cx18_mdl_sync_for_device(struct cx18_stream *s, struct cx18_mdl *mdl); + +static inline void cx18_mdl_sync_for_device(struct cx18_stream *s, + struct cx18_mdl *mdl) +{ + if (list_is_singular(&mdl->buf_list)) + cx18_buf_sync_for_device(s, list_first_entry(&mdl->buf_list, + struct cx18_buffer, + list)); + else + _cx18_mdl_sync_for_device(s, mdl); +} + void cx18_buf_swap(struct cx18_buffer *buf); +void _cx18_mdl_swap(struct cx18_mdl *mdl); + +static inline void cx18_mdl_swap(struct cx18_mdl *mdl) +{ + if (list_is_singular(&mdl->buf_list)) + cx18_buf_swap(list_first_entry(&mdl->buf_list, + struct cx18_buffer, list)); + else + _cx18_mdl_swap(mdl); +} /* cx18_queue utility functions */ -struct cx18_queue *_cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf, +struct cx18_queue *_cx18_enqueue(struct cx18_stream *s, struct cx18_mdl *mdl, struct cx18_queue *q, int to_front); static inline -struct cx18_queue *cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf, +struct cx18_queue *cx18_enqueue(struct cx18_stream *s, struct cx18_mdl *mdl, struct cx18_queue *q) { - return _cx18_enqueue(s, buf, q, 0); /* FIFO */ + return _cx18_enqueue(s, mdl, q, 0); /* FIFO */ } static inline -struct cx18_queue *cx18_push(struct cx18_stream *s, struct cx18_buffer *buf, +struct cx18_queue *cx18_push(struct cx18_stream *s, struct cx18_mdl *mdl, struct cx18_queue *q) { - return _cx18_enqueue(s, buf, q, 1); /* LIFO */ + return _cx18_enqueue(s, mdl, 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, +struct cx18_mdl *cx18_dequeue(struct cx18_stream *s, struct cx18_queue *q); +struct cx18_mdl *cx18_queue_get_mdl(struct cx18_stream *s, u32 id, u32 bytesused); void cx18_flush_queues(struct cx18_stream *s); +/* queue MDL reconfiguration helpers */ +void cx18_unload_queues(struct cx18_stream *s); +void cx18_load_queues(struct cx18_stream *s); + /* cx18_stream utility functions */ int cx18_stream_alloc(struct cx18_stream *s); void cx18_stream_free(struct cx18_stream *s); |