Commit Graph

239 Commits

Author SHA1 Message Date
Mauro Carvalho Chehab
86eaa804fc media: svg files: simplify files
Debian's ImageMagick is currently unable to decode those
images. Use scour to simplify the SVG, and provide only
one font type, in order to make it more palatable.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-26 05:46:41 -04:00
Mauro Carvalho Chehab
38f79cba96 media: selection.svg: simplify the SVG file
This file is too big, with cause it to require a lot
of memory when parsed by texlive.

Optimize it, in order to avoid the need of touching at
main_memory at texmf.cnf.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-26 05:46:40 -04:00
Mauro Carvalho Chehab
a3db9d60a1 Linux v4.13-rc1
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Merge tag 'v4.13-rc1' into patchwork

Linux v4.13-rc1

* tag 'v4.13-rc1': (11136 commits)
  Linux v4.13-rc1
  random: reorder READ_ONCE() in get_random_uXX
  random: suppress spammy warnings about unseeded randomness
  replace incorrect strscpy use in FORTIFY_SOURCE
  kmod: throttle kmod thread limit
  kmod: add test driver to stress test the module loader
  MAINTAINERS: give kmod some maintainer love
  xtensa: use generic fb.h
  fault-inject: add /proc/<pid>/fail-nth
  fault-inject: simplify access check for fail-nth
  fault-inject: make fail-nth read/write interface symmetric
  fault-inject: parse as natural 1-based value for fail-nth write interface
  fault-inject: automatically detect the number base for fail-nth write interface
  kernel/watchdog.c: use better pr_fmt prefix
  MAINTAINERS: move the befs tree to kernel.org
  lib/atomic64_test.c: add a test that atomic64_inc_not_zero() returns an int
  mm: fix overflow check in expand_upwards()
  ubifs: Set double hash cookie also for RENAME_EXCHANGE
  ubifs: Massage assert in ubifs_xattr_set() wrt. init_xattrs
  ubifs: Don't leak kernel memory to the MTD
  ...
2017-07-17 11:17:36 -03:00
Linus Torvalds
0b49ce5a40 media updates for v4.13-rc1
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Merge tag 'media/v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - addition of fwnode support at V4L2 core

 - addition of a few more SDR formats

 - new imx driver to support i.MX6 cameras

 - new driver for Qualcon venus codecs

 - new I2C sensor drivers: dw9714, max2175, ov13858, ov5640

 - new CEC driver: stm32-cec

 - some improvements to DVB frontend documentation and a few fixups

 - several driver improvements and fixups

* tag 'media/v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (361 commits)
  [media] media: entity: Catch unbalanced media_pipeline_stop calls
  [media] media/uapi/v4l: clarify cropcap/crop/selection behavior
  [media] v4l2-ioctl/exynos: fix G/S_SELECTION's type handling
  [media] vimc: sen: Declare vimc_sen_video_ops as static
  [media] vimc: sca: Add scaler
  [media] vimc: deb: Add debayer filter
  [media] vimc: Subdevices as modules
  [media] vimc: cap: Support several image formats
  [media] vimc: sen: Support several image formats
  [media] vimc: common: Add vimc_colorimetry_clamp
  [media] vimc: common: Add vimc_link_validate
  [media] vimc: common: Add vimc_pipeline_s_stream helper
  [media] vimc: common: Add vimc_ent_sd_* helper
  [media] vimc: Move common code from the core
  [media] vimc: sen: Integrate the tpg on the sensor
  [media] media: i2c: ov772x: Force use of SCCB protocol
  [media] dvb uapi docs: enums are passed by value, not reference
  [media] dvb: don't use 'time_t' in event ioctl
  [media] media: venus: enable building with COMPILE_TEST
  [media] af9013: refactor power control
  ...
2017-07-06 11:15:19 -07:00
Sakari Ailus
4ee92289c2 media: docs-rst: Document EBUSY for VIDIOC_S_FMT
VIDIOC_S_FMT may return EBUSY if the device is streaming or there are
buffers allocated. Document this.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-26 07:57:09 -03:00
Jonathan Corbet
af648bbe94 Docs: Use kernel-figure in vidioc-g-selection.rst
...otherwise the PDF build fails when it can't find constraints.pdf.

Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-06-23 13:45:56 -06:00
Hans Verkuil
8780f1d9d6 [media] media/uapi/v4l: clarify cropcap/crop/selection behavior
Unfortunately the use of 'type' was inconsistent for multiplanar
buffer types. Starting with 4.13 both the normal and _MPLANE variants
are allowed, thus making it possible to write sensible code.

Yes, we messed up :-(

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
[hans.verkuil@cisco.com: 4.14 -> 4.13 since this would go in for 4.13 after all]

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-23 09:22:17 -03:00
Mauro Carvalho Chehab
affd250dec [media] dvb uapi docs: enums are passed by value, not reference
Since 2015, the documentation for FE_DISEQC_SEND_BURST, FE_SET_TONE
and FE_SET_VOLTAGE are incorrectly saying that the enums are passed
by reference. They aren't: they're passed by value.

Fix the documentation to reflect reality.

Fixes: 81959d996a ("[media] DocBook: better document FE_DISEQC_SEND_BURST ioctl")
Fixes: d6b6d346e5 ("[media] DocBook: better document FE_SET_VOLTAGE ioctl")
Fixes: 6dc59e7a19 ("[media] DocBook: better document FE_SET_TONE ioctl")
Reported-by: Thierry Lelegard <thierry.lelegard@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-23 08:25:16 -03:00
Sakari Ailus
371f94490e [media] v4l: controls: Improve documentation for V4L2_CID_GAIN
Elaborate the differences between V4L2_CID_GAIN and gain-type specific
V4L2_CID_DIGITAL_GAIN and V4L2_CID_ANALOGUE_GAIN.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 08:14:57 -03:00
Sakari Ailus
e72cb0e794 [media] v4l: ctrls: Add a control for digital gain
Add V4L2_CID_DIGITAL_GAIN to control explicitly digital gain.

We already have analogue gain control which the digital gain control
complements. Typically higher quality images are obtained using analogue
gain only as the digital gain does not add information to the image
(rather it may remove it).

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 08:14:34 -03:00
Philipp Zabel
b45cd75636 [media] add mux and video interface bridge entity functions
Add two new media entity function definitions for video multiplexers
and video interface bridges.

- renamed MEDIA_ENT_F_MUX to MEDIA_ENT_F_VID_MUX

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 07:18:01 -03:00
Ramesh Shanmugasundaram
e744ee2803 [media] doc_rst: media: New SDR formats PC16, PC18 & PC20
This patch adds documentation for the three new SDR formats

V4L2_SDR_FMT_PCU16BE
V4L2_SDR_FMT_PCU18BE
V4L2_SDR_FMT_PCU20BE

Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 07:04:40 -03:00
Hans Verkuil
41c01d6582 [media] cec-ioc-adap-g-caps.rst: document CEC_CAP_NEEDS_HPD
Document the new CEC_CAP_NEEDS_HPD capability.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 06:55:15 -03:00
Alexandre Courbot
7eb2bcb2ef [media] media-ioc-g-topology.rst: fix typos
Fix what seems to be a few typos induced by copy/paste.

[mchehab@s-opensource.com: fix a typo]
Signed-off-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-08 14:52:03 -03:00
Pavel Machek
9e9e6a7814 [media] Doc*/media/uapi: fix control name
V4L2_CID_EXPOSURE_BIAS does not exist, fix documentation.

Signed-off-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-06 16:49:46 -03:00
Linus Torvalds
e87d51ac61 media updates for v4.12-rc1
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Merge tag 'media/v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:
 "Media updates for v4.12-rc1:

   - new driver to support mediatek jpeg in hardware codec

   - rc-lirc, s5p-cec and st-cec staging drivers got promoted

   - hardware histogram support for vsp1 driver

   - added Virtual Media Controller driver, to make easier to test the
     media controller

   - added a new CEC driver (rainshadow-cec)

   - removed two staging LIRC drivers for obscure hardware that are too
     obsolete

   - added support for Intel SR300 Depth camera

   - some improvements at CEC and RC core

   - lots of driver cleanups, improvements all over the tree

  With this series, we're finally getting rid of the LIRC staging
  driver. There's just one left (lirc_zilog), with require more care,
  as part of its functionality (IR RX) is already provided by another
  driver. Work in progress to convert it on the proper way"

* tag 'media/v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (304 commits)
  [media] ov2640: print error if devm_*_optional*() fails
  [media] atmel-isc: Fix the static checker warning
  [media] ov2640: add support for MEDIA_BUS_FMT_YVYU8_2X8 and MEDIA_BUS_FMT_VYUY8_2X8
  [media] ov2640: fix vflip control
  [media] ov2640: fix duplicate width+height returning from ov2640_select_win()
  [media] ov2640: add missing write to size change preamble
  [media] ov2640: add information about DSP register 0xc7
  [media] ov2640: improve banding filter register definitions/documentation
  [media] ov2640: fix init sequence alignment
  [media] ov2640: make GPIOLIB an optional dependency
  [media] xc5000: fix spelling mistake: "calibration"
  [media] vidioc-queryctrl.rst: fix menu/int menu references
  [media] media-entity: only call dev_dbg_obj if mdev is not NULL
  [media] pixfmt-meta-vsp1-hgo.rst: remove spurious '-'
  [media] mtk-vcodec: avoid warnings because of empty macros
  [media] coda: bump maximum number of internal framebuffers to 17
  [media] media: mtk-vcodec: remove informative log
  [media] subdev-formats.rst: remove spurious '-'
  [media] dw2102: limit messages to buffer size
  [media] ttusb2: limit messages to buffer size
  ...
2017-05-05 17:34:57 -07:00
Linus Torvalds
2f34c1231b main drm pull request for 4.12 kernel
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Merge tag 'drm-for-v4.12' of git://people.freedesktop.org/~airlied/linux

Pull drm u pdates from Dave Airlie:
 "This is the main drm pull request for v4.12. Apart from two fixes
  pulls, everything should have been in drm-next for at least 2 weeks.

  The biggest thing in here is AMD released the public headers for their
  upcoming VEGA GPUs. These as always are quite a sizeable chunk of
  header files. They've also added initial non-display support for those
  GPUs, though they aren't available in production yet.

  Otherwise it's pretty much normal.

  New bridge drivers:
   - megachips-stdpxxxx-ge-b850v3-fw LVDS->DP++
   - generic LVDS bridge support.

  Core:
   - Displayport link train failure reporting to userspace
   - debugfs interface cleaned up
   - subsystem TODO in kerneldoc now
   - Extended fbdev support (flipping and vblank wait)
   - drm_platform removed
   - EDP CRC support in helper
   - HF-VSDB SCDC support in EDID parser
   - Lots of code cleanups and header extraction
   - Thunderbolt external GPU awareness
   - Atomic helper improvements
   - Documentation improvements

  panel:
   - Sitronix and Samsung new panel support

  amdgpu:
   - Preliminary vega10 support
   - Multi-level page table support
   - GPU sensor support for userspace
   - PRT support for sparse buffers
   - SR-IOV improvements
   - Non-contig VRAM CPU mapping

  i915:
   - Atomic modesetting enabled by default on Gen5+
   - LSPCON improvements
   - Atomic state handling for cdclk
   - GPU reset improvements
   - In-kernel unit tests
   - Geminilake improvements and color manager support
   - Designware i2c fixes
   - vblank evasion improvements
   - Hotplug safe connector iterators
   - GVT scheduler QoS support
   - GVT Kabylake support

  nouveau:
   - Acceleration support for Pascal (GP10x).
   - Rearchitecture of code handling proprietary signed firmware
   - Fix GTX 970 with odd MMU configuration
   - GP10B support
   - GP107 acceleration support

  vmwgfx:
   - Atomic modesetting support for vmwgfx

  omapdrm:
   - Support for render nodes
   - Refactor omapdss code
   - Fix some probe ordering issues
   - Fix too dark RGB565 rendering

  sunxi:
   - prelim rework for multiple pipes.

  mali-dp:
   - Color management support
   - Plane scaling
   - Power management improvements

  imx-drm:
   - Prefetch Resolve Engine/Gasket on i.MX6QP
   - Deferred plane disabling
   - Separate alpha support

  mediatek:
   - Mediatek SoC MT2701 support

  rcar-du:
   - Gen3 HDMI support

  msm:
   - 4k support for newer chips
   - OPP bindings for gpu
   - prep work for per-process pagetables

  vc4:
   - HDMI audio support
   - fixes

  qxl:
   - minor fixes.

  dw-hdmi:
   - PHY improvements
   - CSC fixes
   - Amlogic GX SoC support"

* tag 'drm-for-v4.12' of git://people.freedesktop.org/~airlied/linux: (1778 commits)
  drm/nouveau/fb/gf100-: Fix 32 bit wraparound in new ram detection
  drm/nouveau/secboot/gm20b: fix the error return code in gm20b_secboot_tegra_read_wpr()
  drm/nouveau/kms: Increase max retries in scanout position queries.
  drm/nouveau/bios/bitP: check that table is long enough for optional pointers
  drm/nouveau/fifo/nv40: no ctxsw for pre-nv44 mpeg engine
  drm: mali-dp: use div_u64 for expensive 64-bit divisions
  drm/i915: Confirm the request is still active before adding it to the await
  drm/i915: Avoid busy-spinning on VLV_GLTC_PW_STATUS mmio
  drm/i915/selftests: Allocate inode/file dynamically
  drm/i915: Fix system hang with EI UP masked on Haswell
  drm/i915: checking for NULL instead of IS_ERR() in mock selftests
  drm/i915: Perform link quality check unconditionally during long pulse
  drm/i915: Fix use after free in lpe_audio_platdev_destroy()
  drm/i915: Use the right mapping_gfp_mask for final shmem allocation
  drm/i915: Make legacy cursor updates more unsynced
  drm/i915: Apply a cond_resched() to the saturated signaler
  drm/i915: Park the signaler before sleeping
  drm: mali-dp: Check the mclk rate and allow up/down scaling
  drm: mali-dp: Enable image enhancement when scaling
  drm: mali-dp: Add plane upscaling support
  ...
2017-05-03 11:44:24 -07:00
Mauro Carvalho Chehab
5c45d4a987 [media] vidioc-queryctrl.rst: fix menu/int menu references
The documentation incorrectly mentions MENU and INTEGER_MENU
at struct v4l2_querymenu table as if they were flags. They're
not: they're types.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-19 08:26:25 -03:00
Mauro Carvalho Chehab
242b0c4cc9 [media] pixfmt-meta-vsp1-hgo.rst: remove spurious '-'
Remove spurious '-' in the VSP1 hgo table.

This resulted in a weird dot character that also caused
the row to be double-height.

We used to have it on other tables, but we got rid of them
on changeset 8ed29e302d ("[media] subdev-formats.rst: remove
spurious '-'").

Fixes: 14d6653871 ("[media] v4l: Define a pixel format for the R-Car VSP1 1-D histogram engine")
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-19 08:01:18 -03:00
Hans Verkuil
8ed29e302d [media] subdev-formats.rst: remove spurious '-'
Remove spurious duplicate '-' in the Bayer Formats description. This resulted in a
weird dot character that also caused the row to be double-height.

The - character was probably used originally as indicator of an unused bit, but as the
number of columns was increased it was never used for the new columns.

Other tables do not use '-' either, so just remove it.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-19 07:30:03 -03:00
Hans Verkuil
aacfed858f [media] buffer.rst: clarify how V4L2_CTRL_FLAG_MODIFY_LAYOUT/GRABBER are used
Explain when the V4L2_CTRL_FLAG_MODIFY_LAYOUT and
V4L2_CTRL_FLAG_MODIFY_GRABBER flags should be used.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-14 22:55:32 -03:00
Hans Verkuil
bf587efff1 [media] vidioc-queryctrl.rst: document V4L2_CTRL_FLAG_MODIFY_LAYOUT
Document this new control flag.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-14 22:53:36 -03:00
Niklas Söderlund
5deb1c04c9 [media] v4l: Define a pixel format for the R-Car VSP1 2-D histogram engine
The format is used on the R-Car VSP1 video queues that carry
2-D histogram statistics data.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-14 22:49:06 -03:00
Laurent Pinchart
14d6653871 [media] v4l: Define a pixel format for the R-Car VSP1 1-D histogram engine
The format is used on the R-Car VSP1 video queues that carry
1-D histogram statistics data.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-14 22:43:58 -03:00
Laurent Pinchart
fb9ffa6a7f [media] v4l: Add metadata buffer type and format
The metadata buffer type is used to transfer metadata between userspace
and kernelspace through a V4L2 buffers queue. It comes with a new
metadata capture capability and format description.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: removed left-over 'experimental' note]
[hans.verkuil@cisco.com: add newline after _v4l2-meta-format label]

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-14 22:37:02 -03:00
Laurent Pinchart
99bb078eee [media] v4l: Clearly document interactions between formats, controls and buffers
V4L2 exposes parameters that influence buffers sizes through the format
ioctls (VIDIOC_G_FMT, VIDIOC_TRY_FMT, VIDIOC_S_FMT, and possibly
VIDIOC_G_SELECTION and VIDIOC_S_SELECTION). Other parameters not part of
the format structure may also influence buffer sizes or buffer layout in
general. One existing such parameter is rotation, which is implemented
by the V4L2_CID_ROTATE control and thus exposed through the V4L2 control
ioctls.

The interaction between those parameters and buffers is currently only
partially specified by the V4L2 API. In particular interactions between
controls and buffers isn't specified at all. The behaviour of the
VIDIOC_S_FMT and VIDIOC_S_SELECTION ioctls when buffers are allocated is
also not fully specified.

This patch clearly defines and documents the interactions between
formats, selections, controls and buffers.

The preparatory discussions for the documentation change considered
completely disallowing controls that change the buffer size or layout,
in favour of extending the format API with a new ioctl that would bundle
those controls with format information. The idea has been rejected, as
this would essentially be a restricted version of the upcoming request
API that wouldn't bring any additional value.

Another option we have considered was to mandate the use of the request
API to modify controls that influence buffer size or layout. This has
also been rejected on the grounds that requiring the request API to
change rotation even when streaming is stopped would significantly
complicate implementation of drivers and usage of the V4L2 API for
applications.

Applications will however be required to use the upcoming request API to
change at runtime formats or controls that influence the buffer size or
layout, because of the need to synchronize buffers with the formats and
controls. Otherwise there would be no way to interpret the content of a
buffer correctly.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-14 22:34:26 -03:00
Hans Verkuil
426b188040 [media] dev-capture.rst/dev-output.rst: video standards ioctls are optional
The documentation for video capture and output devices claims that the video standard
ioctls are required. This is not the case, they are only required for PAL/NTSC/SECAM
type inputs and outputs. Sensors do not implement this at all and e.g. HDMI inputs
implement the DV Timings ioctls.

Just drop the mention of 'video standard' ioctls.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10 08:23:08 -03:00
Evgeni Raikhel
5df082e231 [media] Documentation: Intel SR300 Depth camera INZI format
Provide the frame structure and data layout of V4L2-PIX-FMT-INZI
format utilized by Intel SR300 Depth camera.

Signed-off-by: Evgeni Raikhel <evgeni.raikhel@intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10 07:46:42 -03:00
Hans Verkuil
bff8ff6528 [media] vidioc-enumin/output.rst: improve documentation
The V4L2_INPUT_TYPE_CAMERA and V4L2_OUTPUT_TYPE_ANALOG descriptions were
hopelessly out of date. Fix this, and also fix a few style issues in these
documents. Finally add the missing documentation for V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY
(only used by the zoran driver).

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10 07:28:38 -03:00
Hans Verkuil
3369cde0af [media] video.rst: a sensor is also considered to be a physical input
Add the line "Camera sensors are also considered to be a video input."

In practice all non-MC drivers for sensors support the input ioctls, and the
compliance test actually tests for the presence of these ioctls. So clarify
the documentation by explicitly mentioning sensors.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10 07:25:56 -03:00
Neil Armstrong
3c2507d308 documentation: media: Add documentation for new RGB and YUV bus formats
Add documentation for added Bus Formats to describe RGB and YUV formats used
as input to the Synopsys DesignWare HDMI TX Controller.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1491230558-10804-4-git-send-email-narmstrong@baylibre.com
2017-04-03 11:51:40 -04:00
Sean Young
a8b875a549 [media] lirc: document lirc modes better
LIRC_MODE_MODE2 and LIRC_MODE_LIRCCODE were not covered at all.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-03-24 07:43:26 -03:00
Sakari Ailus
974f4a385c [media] docs-rst: media: Explicitly refer to sub-sampling in scaling documentation
Skipping, which is sometimes used in terminology related to sensors when
referring to sub-sampling is replaced by more suitable sub-sampling
instead. Skipping is retained in a note in parentheses.

Suggested-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-03-22 11:18:41 -03:00
Hans Verkuil
fabd5bd68f [media] cec: document the special unconfigured case
Even when the CEC device is unconfigured due to an invalid physical
address it is still allowed to send a message from 0xf (Unregistered)
to 0 (TV). This is a corner case explicitly allowed by the CEC specification.

Document this corner case.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-03-22 11:13:12 -03:00
Hans Verkuil
491314b8d4 [media] cec: document the error codes
Document all the various error codes returned by the CEC ioctls.

These were never documented, instead the documentation relied on a reference
to the generic error codes, but that's not sufficient.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-03-22 11:12:34 -03:00
Hans Verkuil
b94dffd65c [media] cec: documentation fixes
Fixed a few spelling mistakes, but mostly incorrect rst syntax that caused wrong
references or font style.

No actual documentation changes, just fixes.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-03-22 10:22:40 -03:00
Hans Verkuil
79e92dc0ec [media] videodev2.h: map xvYCC601/709 to limited range quantization
The xvYCC601/709 encodings were mapped by default to full range quantization.
This is actually wrong since these encodings use limited range quantization,
but accept values outside of the limited range.

This makes sense since for values within the limited range it behaves exactly
the same as BT.601 or Rec. 709. The only difference is that with the xvYCC
encodings the values outside of the limited range also produce value colors.

Talking to people who know a lot more about this than I do made me realize
that mapping xvYCC to full range quantization was wrong, so this patch corrects
this and also improves the documentation.

These formats are very rare, and since the formula for decoding these Y'CbCr
encodings is actually fixed and independent of the quantization field value
it is safe to make this change.

The main advantage is that keeps the V4L2 specification in sync with the
corresponding colorspace, HDMI and CEA861 standards when it comes to these
xvYCC formats.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-03-22 10:13:26 -03:00
Mauro Carvalho Chehab
8fa1bb506f docs-rst: Don't use explicit Makefile rules to build SVG and DOT files
Now that we have an extension to handle images, use it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-03-13 16:41:22 -06:00
Mauro Carvalho Chehab
700ea5e0e0 Linux 4.11-rc1
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Merge tag 'v4.11-rc1' into patchwork

Linux 4.11-rc1

* tag 'v4.11-rc1': (10730 commits)
  Linux 4.11-rc1
  strparser: destroy workqueue on module exit
  Documentation/sphinx: fix primary_domain configuration
  docs: Fix htmldocs build failure
  doc/ko_KR/memory-barriers: Update control-dependencies section
  pcieaer doc: update the link
  Documentation: Update path to sysrq.txt
  sfc: fix IPID endianness in TSOv2
  sfc: avoid max() in array size
  rds: remove unnecessary returned value check
  rxrpc: Fix potential NULL-pointer exception
  nfp: correct DMA direction in XDP DMA sync
  nfp: don't tell FW about the reserved buffer space
  net: ethernet: bgmac: mac address change bug
  net: ethernet: bgmac: init sequence bug
  xen-netback: don't vfree() queues under spinlock
  xen-netback: keep a local pointer for vif in backend_disconnect()
  netfilter: nf_tables: don't call nfnetlink_set_err() if nfnetlink_send() fails
  netfilter: nft_set_rbtree: incorrect assumption on lower interval lookups
  netfilter: nf_conntrack_sip: fix wrong memory initialisation
  ...
2017-03-06 06:49:34 -03:00
Hans Verkuil
3406e89ae1 [media] vidioc-g-dv-timings.rst: update v4l2_bt_timings struct
The new picture_aspect, cea861_vic and hdmi_vic fields were not documented,
even though the corresponding flags were.

Add documentation for these new fields.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-03-03 07:24:27 -03:00
Masahiro Yamada
03440c4e5e scripts/spelling.txt: add "an union" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  an union||a union

Link: http://lkml.kernel.org/r/1481573103-11329-5-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:46 -08:00
Mauro Carvalho Chehab
e6b377dbbb Linux 4.10
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Merge tag 'v4.10' into patchwork

Linux 4.10

* tag 'v4.10': (1558 commits)
  Linux 4.10
  Fix missing sanity check in /dev/sg
  scsi: don't BUG_ON() empty DMA transfers
  ipv6: release dst on error in ip6_dst_lookup_tail
  printk: use rcuidle console tracepoint
  ARM: multi_v7_defconfig: enable Qualcomm RPMCC
  irda: Fix lockdep annotations in hashbin_delete().
  vxlan: fix oops in dev_fill_metadata_dst
  dccp: fix freeing skb too early for IPV6_RECVPKTINFO
  dpaa_eth: small leak on error
  packet: Do not call fanout_release from atomic contexts
  reset: fix shared reset triggered_count decrement on error
  ntb: ntb_hw_intel: link_poll isn't clearing the pending status properly
  ntb_transport: Pick an unused queue
  ntb: ntb_perf missing dmaengine_unmap_put
  NTB: ntb_transport: fix debugfs_remove_recursive
  Revert "nohz: Fix collision between tick and other hrtimers"
  vfs: fix uninitialized flags in splice_to_pipe()
  drm/radeon: Use mode h/vdisplay fields to hide out of bounds HW cursor
  ARM: 8658/1: uaccess: fix zeroing of 64-bit get_user()
  ...
2017-02-22 07:44:15 -03:00
Linus Torvalds
ff58d005cd media updates for v4.11-rc1
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Merge tag 'media/v4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - new drivers:
       - i.MX6 Video Data Order Adapter's (VDOA)
       - Toshiba et8ek8 5MP sensor
       - STM DELTA multi-format video decoder V4L2 driver
       - SPI connected IR LED
       - Mediatek IR remote receiver
       - ZyDAS ZD1301 DVB USB interface driver

 - new RC keymaps

 - some very old LIRC drivers got removed from staging

 - RC core gained support encoding IR scan codes

 - DVB si2168 gained support for DVBv5 statistics

 - lirc_sir driver ported to rc-core and promoted from staging

 - other bug fixes, board additions and driver improvements

* tag 'media/v4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (230 commits)
  [media] mtk-vcodec: fix build warnings without DEBUG
  [media] zd1301: fix building interface driver without demodulator
  [media] usbtv: add sharpness control
  [media] cxusb: Use a dma capable buffer also for reading
  [media] ttpci: address stringop overflow warning
  [media] dvb-usb-v2: avoid use-after-free
  [media] add Hama Hybrid DVB-T Stick support
  [media] et8ek8: Fix compiler / Coccinelle warnings
  [media] media: fix semicolon.cocci warnings
  [media] media: exynos4-is: add flags to dummy Exynos IS i2c adapter
  [media] v4l: of: check for unique lanes in data-lanes and clock-lanes
  [media] coda/imx-vdoa: constify structs
  [media] st-delta: debug: trace stream/frame information & summary
  [media] st-delta: add mjpeg support
  [media] st-delta: EOS (End Of Stream) support
  [media] st-delta: rpmsg ipc support
  [media] st-delta: add memory allocator helper functions
  [media] st-delta: STiH4xx multi-format video decoder v4l2 driver
  [media] MAINTAINERS: add st-delta driver
  [media] ARM: multi_v7_defconfig: enable STMicroelectronics DELTA Support
  ...
2017-02-21 16:58:32 -08:00
Hans Verkuil
35879ee476 [media] videodev2.h: go back to limited range Y'CbCr for SRGB and, ADOBERGB
This reverts 'commit 7e0739cd9c ("[media] videodev2.h: fix
sYCC/AdobeYCC default quantization range").

The problem is that many drivers can convert R'G'B' content (often
from sensors) to Y'CbCr, but they all produce limited range Y'CbCr.

To stay backwards compatible the default quantization range for
sRGB and AdobeRGB Y'CbCr encoding should be limited range, not full
range, even though the corresponding standards specify full range.

Update the V4L2_MAP_QUANTIZATION_DEFAULT define accordingly and
also update the documentation.

Fixes: 7e0739cd9c ("[media] videodev2.h: fix sYCC/AdobeYCC default quantization range")
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: <stable@vger.kernel.org>      # for v4.9 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-13 14:33:56 -02:00
Hans Verkuil
05a89739e9 [media] gen-errors.rst: document EIO
Document the EIO error since this can happen anywhere anytime and applications
should be aware of this.

Also fix typo: exaustive -> exhaustive

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-30 15:42:47 -02:00
Sean Young
0751d33c27 [media] rc: change wakeup_protocols to list all protocol variants
For IR wakeup, a driver has to program the hardware to wakeup at a
specific IR sequence, so it makes no sense to allow multiple wakeup
protocols to be selected. In the same manner the sysfs interface only
allows one scancode to be provided.

In addition, we need to know the specific variant of the protocol.

In short, these changes are made to the wakeup_protocols sysfs entry:
 - list all the protocol variants rather than the protocol groups,
   e.g. "nec nec-x nec-32" rather than just "nec".
 - only allow one protocol variant to be selected rather than multiple
 - wakeup_filter can only be set once a protocol has been selected in
   wakeup_protocols.

This is an API change, however the only user of this API is the img-ir,
but the wakeup code was never merged to mainline, so it was never used.

Signed-off-by: Sean Young <sean@mess.org>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Sifan Naeem <sifan.naeem@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-30 12:15:12 -02:00
Hans Verkuil
8015d6b83c [media] cec-intro.rst: mention the v4l-utils package and CEC utilities
Mention where to find the CEC utilities.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-30 11:41:51 -02:00
Hans Verkuil
ed72b81bb7 [media] cec rst: remove "This API is not yet finalized" notice
The API is now finalized, so this notice should be dropped.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-30 11:40:46 -02:00
Mauro Carvalho Chehab
65390ea01c Merge branch 'patchwork' into v4l_for_linus
* patchwork: (496 commits)
  [media] v4l: tvp5150: Add missing break in set control handler
  [media] v4l: tvp5150: Don't inline the tvp5150_selmux() function
  [media] v4l: tvp5150: Compile tvp5150_link_setup out if !CONFIG_MEDIA_CONTROLLER
  [media] em28xx: don't store usb_device at struct em28xx
  [media] em28xx: use usb_interface for dev_foo() calls
  [media] em28xx: don't change the device's name
  [media] mn88472: fix chip id check on probe
  [media] mn88473: fix chip id check on probe
  [media] lirc: fix error paths in lirc_cdev_add()
  [media] s5p-mfc: Add support for MFC v8 available in Exynos 5433 SoCs
  [media] s5p-mfc: Rework clock handling
  [media] s5p-mfc: Don't keep clock prepared all the time
  [media] s5p-mfc: Kill all IS_ERR_OR_NULL in clocks management code
  [media] s5p-mfc: Remove dead conditional code
  [media] s5p-mfc: Ensure that clock is disabled before turning power off
  [media] s5p-mfc: Remove special clock rate management
  [media] s5p-mfc: Use printk_ratelimited for reporting ioctl errors
  [media] s5p-mfc: Set DMA_ATTR_ALLOC_SINGLE_PAGES
  [media] vivid: Set color_enc on HSV formats
  [media] v4l2-tpg: Init hv_enc field with a valid value
  ...
2016-12-15 08:38:35 -02:00
Mauro Carvalho Chehab
ec868e4ee2 docs-rst: media: build SVG from graphviz files
Instead of keeping both SVG and graphviz files, dynamically
build SVG from its graphviz sources.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-11-30 17:07:54 -07:00