The mem2mem core doesn't change struct m2m_ops, provided by the driver,
make references to it const.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch adds extension to videobuf2-core. It allow to export an mmap buffer
as a DMABUF file descriptor.
Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
src bufs belong to out queue, dst bufs belong to in queue. Currently
this is not a real problem since all users currently need exactly one
input and one output buffer.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Port memory-to-memory framework to videobuf2 framework.
Add support for multi-planar Video for Linux 2 API extensions to the
memory-to-memory driver framework.
Based on the original patch written by Pawel Osciak.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
A mem-to-mem device is a device that uses memory buffers passed by
userspace applications for both their source and destination data. This
is different from existing drivers, which utilize memory buffers for either
input or output, but not both.
In terms of V4L2 such a device would be both of OUTPUT and CAPTURE type.
Examples of such devices would be: image 'resizers', 'rotators',
'colorspace converters', etc.
This patch adds a separate Kconfig sub-menu for mem-to-mem devices as well.
Signed-off-by: Pawel Osciak <p.osciak@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Vaibhav Hiremath <hvaibhav@ti.com>
Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Guennadi Liakhovetski