diff options
| author | Andy Walls <awalls@radix.net> | 2009-04-13 22:42:43 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-06-16 18:20:44 -0300 |
| commit | 87116159517ecf6b9cf62a136f2935a63833c485 (patch) | |
| tree | 4a52a97e9e740304ed44d4348762836284f4d100 /drivers/media/video/cx18/cx18-streams.h | |
| parent | deed75ed9f7576ada4bca02e6c851833a352a38d (diff) | |
V4L/DVB (11616): cx18: Add a work queue for deferring empty buffer handoffs to the firmware
This change defers sending all CX18_CPU_DE_SET_MDL commands, for a stream with
an ongoing capture, by adding a work queue to handle sending such commands when
needed. This prevents any sleeps, caused by notifying the firmware of new
usable buffers, when a V4L2 application read() is being satisfied or when
an incoming buffer is processed by the cx18-NN-in work queue thread.
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 | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/media/video/cx18/cx18-streams.h b/drivers/media/video/cx18/cx18-streams.h index 420e0a172945..1fdcfffb07ed 100644 --- a/drivers/media/video/cx18/cx18-streams.h +++ b/drivers/media/video/cx18/cx18-streams.h @@ -28,10 +28,13 @@ int cx18_streams_setup(struct cx18 *cx); int cx18_streams_register(struct cx18 *cx); void cx18_streams_cleanup(struct cx18 *cx, int unregister); -/* Capture related */ +/* Related to submission of buffers to firmware */ void cx18_stream_load_fw_queue(struct cx18_stream *s); struct cx18_queue *cx18_stream_put_buf_fw(struct cx18_stream *s, struct cx18_buffer *buf); +void cx18_out_work_handler(struct work_struct *work); + +/* Capture related */ int cx18_start_v4l2_encode_stream(struct cx18_stream *s); int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end); |