snowball/igloo-kernel.git/include/media/videobuf-core.h, branch input

[media] V4L: remove V4L1 compatibility mode

2010-12-29T10:17:07+00:00

Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: videobuf: add queue argument to videobuf_waiton()

2010-10-21T03:06:14+00:00

videobuf_waiton() must unlock and relock ext_lock if it has to wait. For that to happen it needs the videobuf_queue pointer. Don't attempt to unlock/relock q->ext_lock unless it was locked in the first place. vb->state has to be protected by a spinlock to be safe. This patch is based on code from Mauro Carvalho Chehab . [mchehab@redhat.com: add extra argument to a few missing places] Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: videobuf: add ext_lock argument to the queue init functions

2010-10-21T03:06:14+00:00

Add an ext_lock argument to the videobuf init functions. This allows drivers to pass the vdev->lock pointer (or any other externally held lock) to videobuf. For now all drivers just pass NULL. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: videobuf: prepare to make locking optional in videobuf

2010-10-21T03:06:14+00:00

Currently videobuf uses the vb_lock mutex to lock its data structures. But this locking will (optionally) move into the v4l2 core, which means that in that case vb_lock shouldn't be used since the external lock is already held. Prepare for this by adding a pointer to such an external mutex and don't lock if that pointer is set. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: videobuf: Remove videobuf_mapping start and end fields

2010-08-02T18:23:09+00:00

The fields are assigned but never used, remove them. Signed-off-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: videobuf: rename videobuf_alloc to videobuf_alloc_vb

2010-08-02T18:20:47+00:00

These functions allocate videobuf_buffer structures only. Renaming in order to prevent confusion with functions allocating actual video buffer memory. Rename the functions in videobuf-core.h videobuf-dma-sg.c as well. Signed-off-by: Pawel Osciak Signed-off-by: Laurent Pinchart Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: v4l videobuf: add videobuf_buffer *buf as argument to mmap_mapper

2010-05-19T15:57:54+00:00

mmap_mapper should operate on a buffer, not on a complete queue. So let the videobuf-core find the correct buffer instead of duplicating that code in each mmap_mapper implementation. The dma-sg implementation has backwards compatibility code for handling the V4L1_COMPAT layer. This code is now under the v4L1_COMPAT config option. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: v4l videobuf: move video_copy_to_user and copy_stream to core

2010-05-19T15:57:53+00:00

The video_copy_to_user and copy_stream ops are almost identical for all videobuf memtype variants. All that is needed is to use the new vaddr op and these functions can be moved into the core, ensuring we have just one single implementation instead of three. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: v4l videobuf: rename videobuf_queue_to_vmalloc to videobuf_queue_to_vaddr

2010-05-19T15:57:52+00:00

Ths function returns the virtual kernel address of the buffer and has nothing to do with allocation. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: v4l videobuf: rename .vmalloc to .vaddr

2010-05-19T15:57:52+00:00

Rename the .vmalloc op in struct videobuf_qtype_ops to .vaddr. This op returns the virtual kernel address of a buffer. vaddr is a lot less confusing than vmalloc since this callback does do any allocations. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab