diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-31 15:42:54 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-31 15:42:54 -0700 |
commit | 1eb63378354ac37b7e27d256bbf84684751bac32 (patch) | |
tree | 0775591a2dced778d1ba0bd8a946831e424d02d7 /include/media/videobuf2-core.h | |
parent | 1a4ceab195e66bce9c1638fdded6d92988100ba4 (diff) | |
parent | bac2dacd5fb9ddad093d7a2dc5ab44e764874821 (diff) |
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (348 commits)
[media] pctv452e: Remove bogus code
[media] adv7175: Make use of media bus pixel codes
[media] media: vb2: fix incorrect return value
[media] em28xx: implement VIDIOC_ENUM_FRAMESIZES
[media] cx23885: Stop the risc video fifo before reconfiguring it
[media] cx23885: Avoid incorrect error handling and reporting
[media] cx23885: Avoid stopping the risc engine during buffer timeout
[media] cx23885: Removed a spurious function cx23885_set_scale()
[media] cx23885: v4l2 api compliance, set the audioset field correctly
[media] cx23885: hook the audio selection functions into the main driver
[media] cx23885: add generic functions for dealing with audio input selection
[media] cx23885: fixes related to maximum number of inputs and range checking
[media] cx23885: Initial support for the MPX-885 mini-card
[media] cx25840: Ensure AUDIO6 and AUDIO7 trigger line-in baseband use
[media] cx23885: Enable audio line in support from the back panel
[media] cx23885: Allow the audio mux config to be specified on a per input basis
[media] cx25840: Enable support for non-tuner LR1/LR2 audio inputs
[media] cx23885: Name an internal i2c part and declare a bitfield by name
[media] cx23885: Ensure VBI buffers timeout quickly - bugfix for vbi hangs during streaming
[media] cx23885: remove channel dump diagnostics when a vbi buffer times out
...
Fix up trivial conflicts in drivers/misc/altera-stapl/altera.c (header
file rename vs add)
Diffstat (limited to 'include/media/videobuf2-core.h')
-rw-r--r-- | include/media/videobuf2-core.h | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h index f87472acbc5..ea55c08eddf 100644 --- a/include/media/videobuf2-core.h +++ b/include/media/videobuf2-core.h @@ -75,7 +75,6 @@ struct vb2_mem_ops { struct vb2_plane { void *mem_priv; - int mapped:1; }; /** @@ -147,7 +146,6 @@ struct vb2_queue; * @done_entry: entry on the list that stores all buffers ready to * be dequeued to userspace * @planes: private per-plane information; do not change - * @num_planes_mapped: number of mapped planes; do not change */ struct vb2_buffer { struct v4l2_buffer v4l2_buf; @@ -164,7 +162,6 @@ struct vb2_buffer { struct list_head done_entry; struct vb2_plane planes[VIDEO_MAX_PLANES]; - unsigned int num_planes_mapped; }; /** @@ -199,19 +196,28 @@ struct vb2_buffer { * before userspace accesses the buffer; optional * @buf_cleanup: called once before the buffer is freed; drivers may * perform any additional cleanup; optional - * @start_streaming: called once before entering 'streaming' state; enables - * driver to receive buffers over buf_queue() callback + * @start_streaming: called once to enter 'streaming' state; the driver may + * receive buffers with @buf_queue callback before + * @start_streaming is called; the driver gets the number + * of already queued buffers in count parameter; driver + * can return an error if hardware fails or not enough + * buffers has been queued, in such case all buffers that + * have been already given by the @buf_queue callback are + * invalidated. * @stop_streaming: called when 'streaming' state must be disabled; driver * should stop any DMA transactions or wait until they * finish and give back all buffers it got from buf_queue() * callback; may use vb2_wait_for_all_buffers() function * @buf_queue: passes buffer vb to the driver; driver may start * hardware operation on this buffer; driver should give - * the buffer back by calling vb2_buffer_done() function + * the buffer back by calling vb2_buffer_done() function; + * it is allways called after calling STREAMON ioctl; + * might be called before start_streaming callback if user + * pre-queued buffers before calling STREAMON */ struct vb2_ops { int (*queue_setup)(struct vb2_queue *q, unsigned int *num_buffers, - unsigned int *num_planes, unsigned long sizes[], + unsigned int *num_planes, unsigned int sizes[], void *alloc_ctxs[]); void (*wait_prepare)(struct vb2_queue *q); @@ -222,7 +228,7 @@ struct vb2_ops { int (*buf_finish)(struct vb2_buffer *vb); void (*buf_cleanup)(struct vb2_buffer *vb); - int (*start_streaming)(struct vb2_queue *q); + int (*start_streaming)(struct vb2_queue *q, unsigned int count); int (*stop_streaming)(struct vb2_queue *q); void (*buf_queue)(struct vb2_buffer *vb); @@ -276,6 +282,7 @@ struct vb2_queue { wait_queue_head_t done_wq; void *alloc_ctx[VIDEO_MAX_PLANES]; + unsigned int plane_sizes[VIDEO_MAX_PLANES]; unsigned int streaming:1; |