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path: root/drivers/media/video/soc_mediabus.c
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2012-05-15[media] soc-camera: Add soc_mbus_image_sizeLaurent Pinchart1-0/+18
The function returns the minimum size of an image for a given number of bytes per line (as per the V4L2 specification), width and format. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-05-15[media] soc-camera: Fix bytes per line computation for planar formatsLaurent Pinchart1-0/+3
The V4L2 specification defines bytesperline for planar formats as the number of bytes per line for the largest plane. Modify soc_mbus_bytes_per_line() accordingly. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-05-15[media] soc-camera: Add plane layout information to struct soc_mbus_pixelfmtLaurent Pinchart1-0/+33
To compute the value of the v4l2_pix_format::bytesperline field, we need information about planes layout for planar formats. The new enum soc_mbus_layout conveys that information. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-11-04[media] V4L: soc-camera: add helper functions for new bus configuration typeGuennadi Liakhovetski1-0/+33
Add helper functions to process the new media bus configuration type similar to soc_camera_apply_sensor_flags() and soc_camera_bus_param_compatible(). Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-05-20[media] V4L: soc-camera: add more format look-up entriesGuennadi Liakhovetski1-0/+144
Add new look-up entries for all mediabus codes, for which respective fourcc codes exist. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-05-20[media] V4L: soc-camera: add a new packing for YUV 4:2:0 type formatsGuennadi Liakhovetski1-3/+16
12-bit formats, similar to YUV 4:2:0 occupy 3 bytes for each two pixels and cannot be described by any of the existing SOC_MBUS_PACKING_* macros. This patch adds a new one SOC_MBUS_PACKING_1_5X8 to describe such formats and extends soc_mbus_samples_per_pixel() to support it. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-05-20[media] V4L: soc-camera: avoid huge arrays, caused by changed format codesGuennadi Liakhovetski1-24/+69
Recently mediabus pixel format codes have become a part of the user- space API, at which time their values also have been changed from contiguous numbers, running from 0 to sparse numbers with values around 0x1000, 0x2000, 0x3000... This made them unsuitable for the use as array indices. This patch switches soc-camera internal format look-ups to not depend on values of those macros. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-05-20[media] V4L: soc-camera: add JPEG supportKassey Li1-0/+11
Signed-off-by: Qing Xu <qingx@marvell.com> Signed-off-by: Kassey Lee <ygli@marvell.com> [g.liakhovetski@gmx.de: fixed compiler warning] Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-03-22[media] v4l: Rename V4L2_MBUS_FMT_GREY8_1X8 to V4L2_MBUS_FMT_Y8_1X8Laurent Pinchart1-1/+1
For consistency with the V4L2_MBUS_FMT_Y10_1X10 format. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-03-22[media] V4L: soc_mediabus: add a method to obtain the number of samples per ↵Alberto Panizzo1-0/+14
pixel Add a function to calculate the number of samples on the media-bus, required to retrieve one pixel of a certain format. Signed-off-by: Alberto Panizzo <maramaopercheseimorto@gmail.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02V4L/DVB: mediabus: fix ambiguous pixel code namesGuennadi Liakhovetski1-4/+4
Endianness notation is meaningless for 8 bit YUYV codes. Switch pixel code names to explicitly state the order of colour components in the data stream. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-02-26V4L/DVB: v4l: soc_camera: fix bound checking of mbus_fmt[] indexBaruch Siach1-1/+2
When code <= V4L2_MBUS_FMT_FIXED soc_mbus_get_fmtdesc returns a pointer to mbus_fmt[x], where x < 0. Fix this. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> CC: stable@kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-02-26soc-camera: adjust coding style to match V4L preferencesGuennadi Liakhovetski1-15/+30
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16V4L/DVB (13658): v4l: add a media-bus API for configuring v4l2 subdev pixel ↵Guennadi Liakhovetski1-0/+157
and frame formats Video subdevices, like cameras, decoders, connect to video bridges over specialised busses. Data is being transferred over these busses in various formats, which only loosely correspond to fourcc codes, describing how video data is stored in RAM. This is not a one-to-one correspondence, therefore we cannot use fourcc codes to configure subdevice output data formats. This patch adds codes for several such on-the-bus formats and an API, similar to the familiar .s_fmt(), .g_fmt(), .try_fmt(), .enum_fmt() API for configuring those codes. After all users of the old API in struct v4l2_subdev_video_ops are converted, it will be removed. Also add helper routines to support generic pass-through mode for the soc-camera framework. create mode 100644 drivers/media/video/soc_mediabus.c create mode 100644 include/media/soc_mediabus.h create mode 100644 include/media/v4l2-mediabus.h Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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