diff options
| author | Andy Walls | 2009-11-09 03:45:24 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab | 2009-12-05 21:41:51 +0100 |
| commit | 52fcb3ecc6707f52dfe4297f96b7609d4ba517fb (patch) | |
| tree | fe8ecd66c20b10e8b2ba63c667a6afe78c23a2e1 /drivers/media/video/cx18/cx18-streams.h | |
| parent | V4L/DVB (13428): cx18: Rename mdl_offset to mdl_base_idx or free_mdl_idx as a... (diff) | |
| download | kernel-qcow2-linux-52fcb3ecc6707f52dfe4297f96b7609d4ba517fb.tar.gz kernel-qcow2-linux-52fcb3ecc6707f52dfe4297f96b7609d4ba517fb.tar.xz kernel-qcow2-linux-52fcb3ecc6707f52dfe4297f96b7609d4ba517fb.zip | |
V4L/DVB (13429): cx18: Add Memory Descriptor List (MDL) layer to buffer handling
Add a Memory Descriptor List (MDL) layer to buffer handling to implement
scatter-gather I/O. Currently there is still only 1 buffer per MDL.
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-streams.h')
| -rw-r--r-- | drivers/media/video/cx18/cx18-streams.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/media/video/cx18/cx18-streams.h b/drivers/media/video/cx18/cx18-streams.h index 1afc3fd9d822..4a01db5e5a35 100644 --- a/drivers/media/video/cx18/cx18-streams.h +++ b/drivers/media/video/cx18/cx18-streams.h @@ -28,18 +28,18 @@ int cx18_streams_setup(struct cx18 *cx); int cx18_streams_register(struct cx18 *cx); void cx18_streams_cleanup(struct cx18 *cx, int unregister); -/* Related to submission of buffers to firmware */ +/* Related to submission of mdls to firmware */ static inline void cx18_stream_load_fw_queue(struct cx18_stream *s) { struct cx18 *cx = s->cx; queue_work(cx->out_work_queue, &s->out_work_order); } -static inline void cx18_stream_put_buf_fw(struct cx18_stream *s, - struct cx18_buffer *buf) +static inline void cx18_stream_put_mdl_fw(struct cx18_stream *s, + struct cx18_mdl *mdl) { - /* Put buf on q_free; the out work handler will move buf(s) to q_busy */ - cx18_enqueue(s, buf, &s->q_free); + /* Put mdl on q_free; the out work handler will move mdl(s) to q_busy */ + cx18_enqueue(s, mdl, &s->q_free); cx18_stream_load_fw_queue(s); } |