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authorLinus Torvalds <torvalds@linux-foundation.org>2011-10-31 15:42:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-10-31 15:42:54 -0700
commit1eb63378354ac37b7e27d256bbf84684751bac32 (patch)
tree0775591a2dced778d1ba0bd8a946831e424d02d7 /include/media/videobuf2-core.h
parent1a4ceab195e66bce9c1638fdded6d92988100ba4 (diff)
parentbac2dacd5fb9ddad093d7a2dc5ab44e764874821 (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.h23
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;