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The JPEG header is always the same, so, it does not need to be rebuild
each time a new frame is received.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Initialize the subdev name properly so it doesn't have an I2C
bus and slave address appended to it.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Initialize the subdev name properly so it doesn't have an I2C
bus and slave address appended to it.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Initialize the subdev name properly so it doesn't have an I2C
bus and slave address appended to it.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Adapt to new controls (subsampling).
For encoding, the destination format now needs to be set to V4L2_PIX_FMT_JPEG
and the subsampling (4:2:2 or 4:2:0) needs to be set using the respective
control (V4L2_CID_JPEG_CHROMA_SUBSAMPLING). Required buffer size for
destination image during encoding is no longer deduced from the format (which
generally implied overestimation), but needs to be given from userspace in
sizeimage.
Not strictly related to the added controls, this patch also fixes setting the
subsampling of the destination image for decoding, depending on the destination
format.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Some video devices need to use contiguous memory which is
not backed by pages as it happens with vmalloc. This patch
provides USERPTR handling for those devices.
Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The devm_* functions are used in the platform device probe() for data
that is freed on driver removal. The managed device layer takes care
of undoing actions taken in the probe callback() and freeing resources
on driver detach. This eliminates the need for manually releasing
resources and simplifies error handling.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add support for cropping and composition setup on the video capture
node through VIDIOC_S/G_SELECTION ioctls. S/G_CROP, CROPCAP ioctls
are still supported for applications since the core will translate
them to *_selection handler calls.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The devm_* functions are used in the platform device probe() for data
that is freed on driver removal. The managed device layer takes care
of undoing actions taken in the probe callback() and freeing resources
on driver detach. This eliminates the need for manually releasing
resources and simplifies error handling.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The driver used the regulator API so it should depend on REGULATOR.
[mchehab@redhat.com: break depends on on two lines, instead of using a \]
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch replaces VIDIOC_S/G_JPEGCOMP ioctl handlers with
V4L2_CID_JPEG_QUALITY control. Additionally it enables JPEG subsampling
and the restart interval configuration through V4L2_CID_JPEG_SUBSAMPLING
and V4L2_CID_JPEG_RESTART_INTERVAL controls. For the decoder video node
only V4L2_CID_JPEG_SUBSAMPLING is available as a read-only control.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch is a prerequisite for per file handle control handlers.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The V4L2_CID_JPEG_CLASS control class is intended to expose various
adjustable parameters of JPEG encoders and decoders. Following controls
are defined:
- V4L2_CID_JPEG_CHROMA_SUBSAMPLING,
- V4L2_CID_JPEG_RESTART_INTERVAL,
- V4L2_CID_JPEG_COMPRESSION_QUALITY,
- V4L2_CID_JPEG_ACTIVE_MARKER.
This covers only a part of relevant standard specifications. More
controls should be added in future if required.
The purpose of V4L2_CID_JPEG_CLASS class is also to replace some
functionality covered by VIDIOC_S/G_JPEGCOMP ioctls, i.e. the JPEG
markers presence and compression quality control. The applications
and drivers should switch from the ioctl to control based API, as
described in the subsequent patches for the Media API DocBook.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Adding support for using MHL (SiI9234 or other) chip if its configuration was
passed to HDMI by platfrom data.
Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Moving configuration of s5p-hdmi peripherals from driver data to
platfrom data.
Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
SiI9234 is a converter of HDMI signal into MHL. The chip is present on some
boards from Samsung S5P family. The chip's configuration procedure is based on
MHD_SiI9234 driver created by doonsoo45.kim.
The driver is using:
- i2c framework
- v4l2 framework
- runtime PM
Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The various devm_ functions allocate memory that is released when a driver
detaches. This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
i.MX2x SoCs have a PrP which is capable of resizing and format
conversion of video frames. This driver provides support for
resizing and format conversion from YUYV to YUV420.
This operation is of the utmost importance since some of these
SoCs like i.MX27 include an H.264 video codec which only
accepts YUV420 as input.
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Correctly sets the max/min/default values for the hdpvr picture
controls. The reason the current values didn't cause a problem until now
is because any firmware <= 0.15 didn't support them. The latest firmware
releases properly support picture controls and the values in the patch
are derived from the windows driver using SniffUSB2.0.
Thanks to Devin Heitmueller for helping me.
Signed-off-by: Taylor Ralph <tralph@mythtv.org>
Thanks-to: Devin Heitmueller <dheitmueller@kernellabs.com>
Acked-by: Jarod Wilson <jarod@redhat.com>
Reviewed-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Specify chip revision at attach time rather than a firmware image.
This is a better way to ensure that the correct firmware is loaded
for the correct revision of the chip.
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Many drivers just support control events, and most radio drivers just need
to poll for control events. Add some functions to simplify those jobs.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add the start and end messages for log_status when called from a
subdev device node.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
For drivers that properly use the v4l2 framework (i.e. set v4l2_dev in the
video_device struct), the start and end messages of VIDIOC_LOG_STATUS are
now generated automatically. People tended to forget these, but the v4l2-ctl
tool scans for these messages, and it also makes it easier to read the status
output in the kernel log.
The cx18, ivtv and bttv drivers were changed since they no longer need to
log these start/end messages.
In saa7164 two empty log_status functions were removed.
Also added a helper function to v4l2-ctrl.c that can be used as the
vidioc_log_status callback if all you need to do is to log the current control
values. This is now used by pwc and vivi.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Steven Toth <stoth@kernellabs.com>
Cc: Andy Walls <awalls@md.metrocast.net>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
With this private ioctl it is possible to use the ivtv decoder without
requiring the dvb/video.h and dvb/audio.h headers.
Eventually support for those DVB APIs will be dropped from ivtv.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The cx18 and ddbridge drivers include linux/dvb/audio.h and video.h
without using them.
Remove those includes.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
As discussed during the 2011 V4L-DVB workshop we want to create a proper V4L2
decoder API that replaces the DVBv5 API that has been used until now.
This adds the four controls necessary to be able to switch ivtv over to this
new API.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
As discussed during the 2011 V4L-DVB workshop, the API in dvb/video.h should
be replaced by a proper V4L2 API. This patch turns the VIDEO_(TRY_)DECODER_CMD
ioctls into proper V4L2 ioctls.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
In tm6000_ir_fini() there seems to be a problem.
rc_unregister_device(ir->rc); calls rc_free_device() on the pointer it is
given, which frees it.
Subsequently the function does:
if (!ir->polling)
__tm6000_ir_int_stop(ir->rc);
and __tm6000_ir_int_stop() dereferences the pointer it is given, which
has already been freed.
and it also does:
tm6000_ir_stop(ir->rc);
which also dereferences the (already freed) pointer.
So, it seems that the call to rc_unregister_device() should be move
below the calls to __tm6000_ir_int_stop() and tm6000_ir_stop(), so
those don't operate on a already freed pointer.
But, I must admit that I don't know this code *at all*, so someone who
knows the code should take a careful look before applying this
patch. It is based purely on inspection of facts of what is beeing
freed where and not at all on understanding what the code does or why.
I don't even have a means to test it, so beyond testing that the
change compiles it has seen no testing what-so-ever.
Anyway, here's a proposed patch.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
remove unnecessary inclusion of machine specific header files mach/dm646x.h,
mach/hardware.h from vpif.h and aslo mach/dm646x.h from vpif_display.c
driver which comes in the way of platform code consolidation.
Add linux/i2c.h header file in vpif_types.h which is required for
building.
Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: LMML <linux-media@vger.kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
V4L2_CAP_DEVICE_CAPS is valid for the capabilities field only as per
the spec.
Found with v4l2-compliance.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
