Commit Graph

535 Commits

Author SHA1 Message Date
Mauro Carvalho Chehab 4bd257d884 Linux 4.20-rc7
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Merge tag 'v4.20-rc7' into patchwork

Linux 4.20-rc7

* tag 'v4.20-rc7': (403 commits)
  Linux 4.20-rc7
  scripts/spdxcheck.py: always open files in binary mode
  checkstack.pl: fix for aarch64
  userfaultfd: check VM_MAYWRITE was set after verifying the uffd is registered
  fs/iomap.c: get/put the page in iomap_page_create/release()
  hugetlbfs: call VM_BUG_ON_PAGE earlier in free_huge_page()
  memblock: annotate memblock_is_reserved() with __init_memblock
  psi: fix reference to kernel commandline enable
  arch/sh/include/asm/io.h: provide prototypes for PCI I/O mapping in asm/io.h
  mm/sparse: add common helper to mark all memblocks present
  mm: introduce common STRUCT_PAGE_MAX_SHIFT define
  alpha: fix hang caused by the bootmem removal
  XArray: Fix xa_alloc when id exceeds max
  drm/vmwgfx: Protect from excessive execbuf kernel memory allocations v3
  MAINTAINERS: Daniel for drm co-maintainer
  drm/amdgpu: drop fclk/gfxclk ratio setting
  IB/core: Fix oops in netdev_next_upper_dev_rcu()
  dm thin: bump target version
  drm/vmwgfx: remove redundant return ret statement
  drm/i915: Flush GPU relocs harder for gen3
  ...
2018-12-17 10:34:24 -05:00
Sakari Ailus 934a040be6 media: docs-rst: v4l: Document V4L2_BUF_TYPE_META_OUTPUT interface
Document the interface for metadata output, including
V4L2_BUF_TYPE_META_OUTPUT buffer type and V4L2_CAP_META_OUTPUT capability
bits.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Tested-by: Tian Shu Qiu <tian.shu.qiu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-14 05:12:11 -05:00
Philipp Zabel d338e17993 media: v4l2: clarify H.264 loop filter offset controls
The venus and s5p-mfc drivers add the loop filter alpha/beta offset
controls V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA/BETA with a range of
-6 to +6, inclusive. This is exactly the range specified for the slice
header fields slice_alpha_c0_offset_div2 and slice_beta_offset_div2,
which store half the actual filter offsets FilterOffsetA/B.

Clarify that this control contains the halved offsets.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-07 08:17:21 -05:00
Mauro Carvalho Chehab 14a4467a0a Merge commit '0072a0c14d5b7cb72c611d396f143f5dcd73ebe2' into patchwork
Merge from Upstream after the latest media fixes branch, because we
need one patch that it is there.

* commit '0072a0c14d5b7cb72c611d396f143f5dcd73ebe2': (1108 commits)
  ide: Change to use DEFINE_SHOW_ATTRIBUTE macro
  ide: pmac: add of_node_put()
  drivers/tty: add missing of_node_put()
  drivers/sbus/char: add of_node_put()
  sbus: char: add of_node_put()
  Linux 4.20-rc5
  PCI: Fix incorrect value returned from pcie_get_speed_cap()
  MAINTAINERS: Update linux-mips mailing list address
  ocfs2: fix potential use after free
  mm/khugepaged: fix the xas_create_range() error path
  mm/khugepaged: collapse_shmem() do not crash on Compound
  mm/khugepaged: collapse_shmem() without freezing new_page
  mm/khugepaged: minor reorderings in collapse_shmem()
  mm/khugepaged: collapse_shmem() remember to clear holes
  mm/khugepaged: fix crashes due to misaccounted holes
  mm/khugepaged: collapse_shmem() stop if punched or truncated
  mm/huge_memory: fix lockdep complaint on 32-bit i_size_read()
  mm/huge_memory: splitting set mapping+index before unfreeze
  mm/huge_memory: rename freeze_page() to unmap_page()
  initramfs: clean old path before creating a hardlink
  ...
2018-12-05 13:23:38 -05:00
Hans Verkuil cd9fd6f12f media: extended-controls.rst: add note to the MPEG2 state controls
Add a note mentioning that these two controls are not part of the
public API while they still stabilizing.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-05 13:07:11 -05:00
Mauro Carvalho Chehab 14c9dfec34 media: pixfmt-meta-d4xx.rst: Add a license to it
This file is a recent addition to media docs, and it is now the
only one without any license.

While the best is to dual-license with GFDL and GPL, it is,
at least, compatible with GFDL, as this is a requirement to be
part of the media uAPI docs.

So, add such license to it.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-05 10:41:21 -05:00
Mauro Carvalho Chehab f2ac8ce823 media: docs: brainless mass add SPDX headers to all media files
All Documentation files outside the uAPI are all licensed with,
at least, GPL 2.0. So, mark them as such.

The ondes at media/uapi are at least GFDL 1.1+.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-05 10:40:34 -05:00
Mauro Carvalho Chehab 70100e055c media: svg files: dual-licence some files with GPL and GFDL
Along the time, several image files got replaced by me by
new ones with similar contents.

As those were not simple conversions, dual-license them.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-05 10:40:11 -05:00
Mauro Carvalho Chehab 82559ac027 media: add SPDX header to media uAPI files
All those files are under GFDL 1.1 or later, with no invariant sections.
Tag them as such.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-05 10:39:18 -05:00
Mauro Carvalho Chehab 18e6830a63 media: remove text encoding from rst files
This is not needed there. Also, the same UTF-8 encoding should
be used on all documents.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-05 10:37:18 -05:00
Sergey Dorodnicov 92799ef720 media: v4l: Add 4bpp packed depth confidence format CNF4
Adding new fourcc CNF4 for 4 bit-per-pixel packed depth confidence
information provided by Intel RealSense cameras. Every two consecutive
pixels are packed into a single byte.

Signed-off-by: Sergey Dorodnicov <sergey.dorodnicov@intel.com>
Signed-off-by: Evgeni Raikhel <evgeni.raikhel@intel.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-03 13:42:34 -05:00
Mauro Carvalho Chehab a7c3a0d5f8 media: mediactl docs: Fix licensing message
Right now, it mentions two SPDX headers that don't exist inside the Kernel:
	GFDL-1.1-or-later
And an exception:
	no-invariant-sections

While it would be trivial to add the first one, there's no way,
currently, to distinguish, with SPDX, between a free and a non-free
document under GFDL.

Free documents with GFDL should not have invariant sections.

There's an open issue at SPDX tree waiting for it to be solved.
While we don't have this issue closed, let's just replace by a
free-text license, and add a TODO note to remind us to revisit it
later.

Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-27 13:52:46 -05:00
John Sheu d644cca50f media: vb2: Allow reqbufs(0) with "in use" MMAP buffers
Videobuf2 presently does not allow VIDIOC_REQBUFS to destroy outstanding
buffers if the queue is of type V4L2_MEMORY_MMAP, and if the buffers are
considered "in use".  This is different behavior than for other memory
types and prevents us from deallocating buffers in following two cases:

1) There are outstanding mmap()ed views on the buffer. However even if
   we put the buffer in reqbufs(0), there will be remaining references,
   due to vma .open/close() adjusting vb2 buffer refcount appropriately.
   This means that the buffer will be in fact freed only when the last
   mmap()ed view is unmapped.

2) Buffer has been exported as a DMABUF. Refcount of the vb2 buffer
   is managed properly by VB2 DMABUF ops, i.e. incremented on DMABUF
   get and decremented on DMABUF release. This means that the buffer
   will be alive until all importers release it.

Considering both cases above, there does not seem to be any need to
prevent reqbufs(0) operation, because buffer lifetime is already
properly managed by both mmap() and DMABUF code paths. Let's remove it
and allow userspace freeing the queue (and potentially allocating a new
one) even though old buffers might be still in processing.

To let userspace know that the kernel now supports orphaning buffers
that are still in use, add a new V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS
to be set by reqbufs and create_bufs.

[p.zabel@pengutronix.de: added V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS,
 updated documentation, and added back debug message]

Signed-off-by: John Sheu <sheu@chromium.org>
Reviewed-by: Pawel Osciak <posciak@chromium.org>
Signed-off-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil-cisco@xs4all.nl: added V4L2-BUF-CAP-SUPPORTS-ORPHANED-BUFS ref]
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-23 06:41:39 -05:00
Sean Young 2e9a2ec53c media: v4l uapi docs: few minor corrections and typos
Do a series of minor corrections at the V4L2 uAPI documentation.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-23 06:02:32 -05:00
Sakari Ailus 5f229dcabc media: v4l: uAPI doc: Changing frame interval won't change format
Document that changing the frame interval has no effect on frame size.
While this was the assumption in the API, it was not documented as such.

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+samsung@kernel.org>
2018-11-23 05:16:29 -05:00
Sakari Ailus 9ffd7ffe65 media: v4l: uAPI doc: Simplify NATIVE_SIZE selection target documentation
The NATIVE_SIZE target is documented for mem2mem devices but no driver has
ever apparently used it. It may be never needed; remove it for now.

Suggested-by: Hans Verkuil <hans.verkuil@cisco.com>
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+samsung@kernel.org>
2018-11-23 04:42:31 -05:00
Hans Verkuil 4e3f14052f media: vidioc-enum-fmt.rst: update list of valid buftypes
ENUM_FMT is valid for SDR and META buffer types as well.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-23 04:34:24 -05:00
Will Deacon 806654a966 Documentation: Use "while" instead of "whilst"
Whilst making an unrelated change to some Documentation, Linus sayeth:

  | Afaik, even in Britain, "whilst" is unusual and considered more
  | formal, and "while" is the common word.
  |
  | [...]
  |
  | Can we just admit that we work with computers, and we don't need to
  | use þe eald Englisc spelling of words that most of the world never
  | uses?

dictionary.com refers to the word as "Chiefly British", which is
probably an undesirable attribute for technical documentation.

Replace all occurrences under Documentation/ with "while".

Cc: David Howells <dhowells@redhat.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michael Halcrow <mhalcrow@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-11-20 09:30:43 -07:00
Sakari Ailus 003aedaed6 media: docs: Document metadata format in struct v4l2_format
The format fields in struct v4l2_format were otherwise documented but the
meta field was missing. Document it.

Reported-by: Hans Verkuil <hans.verkuil@cisco.com>
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+samsung@kernel.org>
2018-11-06 07:10:12 -05:00
Linus Torvalds b3491d8430 media updates for v4.20-rc1
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Merge tag 'media/v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull new experimental media request API from Mauro Carvalho Chehab:
 "A new media request API

  This API is needed to support device drivers that can dynamically
  change their parameters for each new frame. The latest versions of
  Google camera and codec HAL depends on such feature.

  At this stage, it supports only stateless codecs.

  It has been discussed for a long time (at least over the last 3-4
  years), and we finally reached to something that seem to work.

  This series contain both the API and core changes required to support
  it and a new m2m decoder driver (cedrus).

  As the current API is still experimental, the only real driver using
  it (cedrus) was added at staging[1]. We intend to keep it there for a
  while, in order to test the API. Only when we're sure that this API
  works for other cases (like encoders), we'll move this driver out of
  staging and set the API into a stone.

  [1] We added support for the vivid virtual driver (used only for
  testing) to it too, as it makes easier to test the API for the ones
  that don't have the cedrus hardware"

* tag 'media/v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (53 commits)
  media: dt-bindings: Document the Rockchip VPU bindings
  media: platform: Add Cedrus VPU decoder driver
  media: dt-bindings: media: Document bindings for the Cedrus VPU driver
  media: v4l: Add definition for the Sunxi tiled NV12 format
  media: v4l: Add definitions for MPEG-2 slice format and metadata
  media: videobuf2-core: Rework and rename helper for request buffer count
  media: v4l2-ctrls.c: initialize an error return code with zero
  media: v4l2-compat-ioctl32.c: add missing documentation for a field
  media: media-request: update documentation
  media: media-request: EPERM -> EACCES/EBUSY
  media: v4l2-ctrls: improve media_request_(un)lock_for_update
  media: v4l2-ctrls: use media_request_(un)lock_for_access
  media: media-request: add media_request_(un)lock_for_access
  media: vb2: set reqbufs/create_bufs capabilities
  media: videodev2.h: add new capabilities for buffer types
  media: buffer.rst: only set V4L2_BUF_FLAG_REQUEST_FD for QBUF
  media: v4l2-ctrls: return -EACCES if request wasn't completed
  media: media-request: return -EINVAL for invalid request_fds
  media: vivid: add request support
  media: vivid: add mc
  ...
2018-10-31 10:53:29 -07:00
Hans Verkuil 7ec2b3b941 media: cec: add new tx/rx status bits to detect aborts/timeouts
If the HDMI cable is disconnected or the CEC adapter is manually
unconfigured, then all pending transmits and wait-for-replies are
aborted. Signal this with new status bits (CEC_RX/TX_STATUS_ABORTED).

If due to (usually) a driver bug a transmit never ends (i.e. the
transmit_done was never called by the driver), then when this times
out the message is marked with CEC_TX_STATUS_TIMEOUT.

This should not happen and is an indication of a driver bug.

Without a separate status bit for this it was impossible to detect
this from userspace.

The 'transmit timed out' kernel message is now a warning, so this
should be more prominent in the kernel log as well.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: <stable@vger.kernel.org>      # for v4.18 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-10-05 11:22:39 -04:00
Hans Verkuil 1611c686c1 media: vidioc-dqevent.rst: clarify V4L2_EVENT_SRC_CH_RESOLUTION
Clarify that when you receive V4L2_EVENT_SOURCE_CHANGE with flag
V4L2_EVENT_SRC_CH_RESOLUTION set, and the new resolution appears
identical to the old resolution, then you still must restart the
streaming I/O.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.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+samsung@kernel.org>
2018-10-04 14:26:10 -04:00
Paul Kocialkowski 36cf35b786 media: v4l: Add definition for the Sunxi tiled NV12 format
This introduces support for the Sunxi tiled NV12 format, where each
component of the YUV frame is divided into macroblocks. Hence, the size
of each plane requires specific alignment. The pixels inside each
macroblock are coded in linear order (line after line from top to
bottom).

This tiled NV12 format is used by the video engine on Allwinner
platforms: it is the default format for decoded frames (and the only
one available in the oldest supported platforms).

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-09-24 09:55:19 -04:00
Paul Kocialkowski c27bb30e7b media: v4l: Add definitions for MPEG-2 slice format and metadata
Stateless video decoding engines require both the MPEG-2 slices and
associated metadata from the video stream in order to decode frames.

This introduces definitions for a new pixel format, describing buffers
with MPEG-2 slice data, as well as control structure sfor passing the
frame metadata to drivers.

This is based on work from both Florent Revest and Hugues Fruchet.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-09-24 09:54:21 -04:00
Hans Verkuil a58c37978c media: media colorspaces*.rst: rename AdobeRGB to opRGB
Drop all Adobe references and use the official opRGB standard
instead.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: stable@vger.kernel.org
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-09-24 09:28:41 -04:00
Hans Verkuil 20b00bbe70 media: vidioc-cropcap/g-crop.rst: fix confusing sentence
The note that the text refers to is actually *below* the type description,
not above.

Fix this.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-09-11 10:51:56 -04:00
Hans Verkuil d4215edbd4 media: media-request: update documentation
Various clarifications and readability improvements based on
Laurent Pinchart's review of the documentation.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-09-11 09:58:43 -04:00
Hans Verkuil 15cd442e79 media: media-request: EPERM -> EACCES/EBUSY
If requests are not supported by the driver, then return EACCES, not
EPERM.

If you attempt to mix queueing buffers directly and using requests,
then EBUSY is returned instead of EPERM: once a specific queueing mode
has been chosen the queue is 'busy' if you attempt the other mode
(i.e. direct queueing vs via a request).

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-09-11 09:57:29 -04:00
Hans Verkuil f35f5d72e7 media: videodev2.h: add new capabilities for buffer types
VIDIOC_REQBUFS and VIDIOC_CREATE_BUFFERS will return capabilities
telling userspace what the given buffer type is capable of.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-09-11 09:49:15 -04:00
Hans Verkuil dc58a553ba media: buffer.rst: only set V4L2_BUF_FLAG_REQUEST_FD for QBUF
Document that V4L2_BUF_FLAG_REQUEST_FD should only be used with
VIDIOC_QBUF and cleared otherwise.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-09-11 09:47:38 -04:00
Hans Verkuil b6b84557ec media: v4l2-ctrls: return -EACCES if request wasn't completed
For now (this might be relaxed in the future) we do not allow getting
controls from a request that isn't completed. In that case we return
-EACCES. Update the documentation accordingly.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-09-11 09:46:41 -04:00
Hans Verkuil 34b4147246 media: media-request: return -EINVAL for invalid request_fds
Instead of returning -ENOENT when a request_fd was not found (VIDIOC_QBUF
and VIDIOC_G/S/TRY_EXT_CTRLS), we now return -EINVAL. This is in line
with what we do when invalid dmabuf fds are passed to e.g. VIDIOC_QBUF.

Also document that EINVAL is returned for invalid m.fd values, we never
documented that.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-09-11 09:45:58 -04:00
Guennadi Liakhovetski 6ea0d588d3 media: uvcvideo: Add a D4M camera description
D4M is a mobile model from the D4XX family of Intel RealSense cameras.
This patch adds a descriptor for it, which enables reading per-frame
metadata from it.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com>
[laurent.pinchart@ideasonboard.com Small clarifications to the documentation]
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-09-11 08:48:01 -04:00
Hans Verkuil 96cb579cc4 media: cec-func-poll.rst/func-poll.rst: update EINVAL description
nfds depends on RLIMIT_NOFILE, not OPEN_MAX. Update the description
for cec and v4l2.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-09-11 08:37:33 -04:00
Hans Verkuil b4ae675d3f media: mediactl/*.rst: document argp
The documentation of the Media Controller API ioctls is missing a description
of the argp ioctl argument. Add this.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-09-11 08:30:52 -04:00
Alexandre Courbot cbb6a7f52b media: Documentation: v4l: document request API
Document the request API for V4L2 devices, and amend the documentation
of system calls influenced by it.

Signed-off-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-08-31 10:41:23 -04:00
Hans Verkuil a125385c9b media: vidioc-g-dv-timings.rst: document V4L2_DV_FL_CAN_DETECT_REDUCED_FPS
Document the new V4L2_DV_FL_CAN_DETECT_REDUCED_FPS flag and
update the V4L2_DV_FL_REDUCED_FPS description since it can now
also be used with receivers.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-08-31 09:31:28 -04:00
Hans Verkuil 21abebf06d media: vicodec: rename and use proper fwht prefix for codec
The codec source is generic and not vicodec specific. It can be used
by other drivers or userspace as well. So rename the source and header
to something more generic (codec-fwht.c/h) and prefix the defines, types
and functions with fwht_.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-08-31 08:27:43 -04:00
Hans Verkuil 4fbf51ee6e media: video_function_calls.rst: drop obsolete video-set-attributes reference
This fixes this warning:

Documentation/media/uapi/dvb/video_function_calls.rst:9: WARNING: toctree contains
reference to nonexisting document 'uapi/dvb/video-set-attributes'

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-08-29 13:24:30 -04:00
Todor Tomov 6e15bec49f media: v4l: Add new 10-bit packed grayscale format
The new format will be called V4L2_PIX_FMT_Y10P.
It is similar to the V4L2_PIX_FMT_SBGGR10P family formats
but V4L2_PIX_FMT_Y10P is a grayscale format.

Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-08-02 06:07:05 -04:00
Todor Tomov 451af0bf04 media: v4l: Add new 2X8 10-bit grayscale media bus code
The code will be called MEDIA_BUS_FMT_Y10_2X8_PADHI_LE.
It is similar to MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE
but MEDIA_BUS_FMT_Y10_2X8_PADHI_LE describes grayscale
data.

Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-08-02 06:04:57 -04:00
Sakari Ailus 83b15832ab media: doc-rst: Add packed Bayer raw14 pixel formats
These formats are compressed 14-bit raw bayer formats with four different
pixel orders. They are similar to 10-bit variants. The formats added by
this patch are

	V4L2_PIX_FMT_SBGGR14P
	V4L2_PIX_FMT_SGBRG14P
	V4L2_PIX_FMT_SGRBG14P
	V4L2_PIX_FMT_SRGGB14P

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-08-02 06:01:02 -04:00
Mauro Carvalho Chehab d21c249b26 media: dvb/audio.h: get rid of unused APIs
There are a number of other ioctls that aren't used anywhere
inside the Kernel tree.

Get rid of them.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-30 16:21:49 -04:00
Mauro Carvalho Chehab b41e44b4cb media: dvb/video.h: get rid of unused APIs
There are a number of other ioctls that aren't used anywhere
inside the Kernel tree.

Get rid of them.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-30 15:43:47 -04:00
Hans Verkuil 06b168aeb5 media: media-types.rst: fix doc warnings
Fix these warnings when building the documentation:

media.h.rst:6: WARNING: undefined label: media-ent-f-dv-decoder (if the link has no caption the label must precede a section header)
media.h.rst:6: WARNING: undefined label: media-ent-f-dv-encoder (if the link has no caption the label must precede a section header)
media.h.rst:6: WARNING: undefined label: media-ent-f-dv-decoder (if the link has no caption the label must precede a section header)

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-27 06:45:12 -04:00
Mauro Carvalho Chehab d0dd962d8a media: dvb: get rid of VIDEO_SET_SPU_PALETTE
No upstream drivers use it. It doesn't make any sense to have
a compat32 code for something that nobody uses upstream.

Reported-by: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-27 06:41:35 -04:00
Hans Verkuil 443eaa359b media: media-types.rst: codec entities can have more than one source pad
Some decoders and encoders can potentially have more than one source pad,
so update the description to say 'at least one source pad'.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-27 06:39:57 -04:00
Hans Verkuil 62c3fce041 media: videodev.h: add PIX_FMT_FWHT for use with vicodec
Add a new pixelformat for the vicodec software codec using the
Fast Walsh Hadamard Transform.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-25 08:09:00 -04:00
Hans Verkuil 45841a9773 media: media.h: add encoder/decoder functions for codecs
Add MEDIA_ENT_F_PROC_VIDEO_EN/DECODER to be used for the encoder
and decoder entities of codec hardware.

[mchehab+samsung@kernel.org: split description on two senteces by adding dots]
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+samsung@kernel.org>
2018-07-25 08:07:58 -04:00
Hans Verkuil 8601494e0e media: media-ioc-enum-entities.rst/-g-topology.rst: clarify ID/name usage
Mention that IDs should not be hardcoded in applications and that the
entity name must be unique within the media topology.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-25 08:05:06 -04:00
Hans Verkuil e5def28568 media: media-ioc-enum-links.rst: improve pad index description
Make it clearer that the index starts at 0.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-25 08:04:22 -04:00
Hans Verkuil 7c8362c4b9 media: media.h: add MEDIA_ENT_F_DV_ENCODER
Add a new function for digital video encoders such as HDMI transmitters.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-25 07:50:09 -04:00
Hans Verkuil d272bc92c4 media: rename MEDIA_ENT_F_DTV_DECODER to MEDIA_ENT_F_DV_DECODER
The use of 'DTV' is very confusing since it normally refers to Digital
TV e.g. DVB etc.

Instead use 'DV' (Digital Video), which nicely corresponds to the
DV Timings API used to configure such receivers and transmitters.

We keep an alias to avoid breaking userspace applications.

Since this alias is only available if __KERNEL__ is *not* defined
(i.e. it is only available for userspace, not kernelspace), any
drivers that use it also have to be converted to the new define.
These drivers are adv7604, adv7842 and tda1997x.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-25 07:49:28 -04:00
Hans Verkuil d2dc644adf media: media-ioc-g-topology.rst: document new 'flags' field
Document the new struct media_v2_entity 'flags' field.

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+samsung@kernel.org>
2018-07-25 07:47:22 -04:00
Hans Verkuil b054900626 media: media-ioc-g-topology.rst: document new 'index' field
Document the new struct media_v2_pad 'index' field.

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+samsung@kernel.org>
2018-07-25 07:45:51 -04:00
Hans Verkuil 5105b484cc media: cec-ioc-dqevent.rst: document the new 5V events
Document the two new 5V events.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-25 06:59:02 -04:00
Niklas Söderlund 56ab8cdbc1 media: v4l: Add support for STD ioctls on subdev nodes
There is no way to control the standard of subdevices which are part of
a media device. The ioctls which exists all target video devices
explicitly and the idea is that the video device should talk to the
subdevice. For subdevices part of a media graph this is not possible and
the standard must be controlled on the subdev device directly.

Add four new ioctls to be able to directly interact with subdevices and
control the video standard; VIDIOC_SUBDEV_ENUMSTD, VIDIOC_SUBDEV_G_STD,
VIDIOC_SUBDEV_S_STD and VIDIOC_SUBDEV_QUERYSTD.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-24 17:39:28 -04:00
Keiichi Watanabe 2a75364d09 media: v4l2-ctrl: Add control for VP9 profile
Add a new control V4L2_CID_MPEG_VIDEO_VP9_PROFILE for VP9 profiles. This control
allows selecting the desired profile for VP9 encoder and querying for supported
profiles by VP9 encoder/decoder.

Though this control is similar to V4L2_CID_MPEG_VIDEO_VP8_PROFILE, we need to
separate this control from it because supported profiles usually differ between
VP8 and VP9.

Signed-off-by: Keiichi Watanabe <keiichiw@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-04 09:32:22 -04:00
Keiichi Watanabe 5520b9467a media: v4l2-ctrl: Change control for VP8 profile to menu control
Add a menu control V4L2_CID_MPEG_VIDEO_VP8_PROFILE for VP8 profile and make
V4L2_CID_MPEG_VIDEO_VPX_PROFILE an alias of it. This new control is used to
select the desired profile for VP8 encoder and query for supported profiles by
VP8 encoder/decoder.

Though we have originally a control V4L2_CID_MPEG_VIDEO_VPX_PROFILE and its name
contains 'VPX', it works only for VP8 because supported profiles usually differ
between VP8 and VP9. In addition, this control cannot be used for querying since
it is not a menu control but an integer control, which cannot return an
arbitrary set of supported profiles.

The new control V4L2_CID_MPEG_VIDEO_VP8_PROFILE is a menu control as with
controls for other codec profiles. (e.g. H264)

In addition, this patch also fixes the use of V4L2_CID_MPEG_VIDEO_VPX_PROFILE in
drivers of Qualcomm's venus and Samsung's s5p-mfc.

Signed-off-by: Keiichi Watanabe <keiichiw@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-04 09:28:38 -04:00
Hans Verkuil 00af4635a1 media: subdev-formats.rst: fix incorrect types
The ycbcr_enc, quantization and xfer_func fields are __u16 and not enums.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-06-28 08:02:19 -04:00
Hans Verkuil 8c4fe24812 media: Documentation/media/uapi/mediactl: redo tables
Drop the '-  .. row 1' lines to make it easier to add new rows to
the tables in the future without having to renumber these lines.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-06-28 08:01:48 -04:00
Hans Verkuil 6aecad6267 media: cec: improve cec status documentation
Clarify the description of status bits, particularly w.r.t. ERROR and NACK.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:34:50 -04:00
Luca Ceresoli e86d1929ad media: docs: selection: fix misleading sentence about the CROP API
The API limitation described here is about the CROP API, not about the
entire V4L2.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:28:22 -04:00
Luca Ceresoli 119e30d395 media: docs: selection: improve formatting
Split section "Comparison with old cropping API" in paragraphs for
easier reading and improve visible links text.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:27:43 -04:00
Luca Ceresoli ff9273f5b8 media: docs: selection: rename files to something meaningful
These files have an automatically-generated numbering. Rename them
with a name that suggests their meaning.

Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:24:06 -04:00
Luca Ceresoli 579d76deb1 media: docs: clarify relationship between crop and selection APIs
Having two somewhat similar and largely overlapping APIs is confusing,
especially since the older one appears in the docs before the newer
and most featureful counterpart.

Clarify all of this in several ways:
 - swap the two sections
 - give a name to the two APIs in the section names
 - add a note at the beginning of the CROP API section
 - update note about VIDIOC_CROPCAP

Also remove a note that is incorrect (correct wording is in
vidioc-cropcap.rst).

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:23:15 -04:00
Luca Ceresoli e81ff408c1 media: docs: selection: fix typos
Fix typos in the selection documentation:
 - over -> cover
 - BONDS -> BOUNDS

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:22:16 -04:00
Sean Young d898cc1df0 media: lirc-func.rst: new ioctl LIRC_GET_REC_TIMEOUT is not in a separate file
This fixes the warning:

Documentation/media/uapi/rc/lirc-func.rst:9: WARNING: toctree contains reference to nonexisting document 'media/uapi/rc/lirc-get-rec-timeout'

The ioctl is documented in lirc-set-rec-timeout.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-14 07:13:11 -04:00
Mauro Carvalho Chehab 901b9dd5e3 media: update/fix my e-mail on some places
There are two places pointing to an unexisting "m.chehab@kernel.org"
email. I never had such email, so, I'm unsure how it ends there.
Anyway, it is plain wrong.

While here, use my canonical e-mail on a bunch of places that
are pointing to another e-mail. The idea is that, from now on,
all places will be pointing to the same SMTP server.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-10 07:27:15 -04:00
Mauro Carvalho Chehab 71db1cd7ff Linux 4.17-rc4
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Merge tag 'v4.17-rc4' into patchwork

Linux 4.17-rc4

* tag 'v4.17-rc4': (920 commits)
  Linux 4.17-rc4
  KVM: x86: remove APIC Timer periodic/oneshot spikes
  genksyms: fix typo in parse.tab.{c,h} generation rules
  kbuild: replace hardcoded bison in cmd_bison_h with $(YACC)
  gcc-plugins: fix build condition of SANCOV plugin
  MAINTAINERS: Update Kbuild entry with a few paths
  Revert "usb: host: ehci: Use dma_pool_zalloc()"
  platform/x86: Kconfig: Fix dell-laptop dependency chain.
  platform/x86: asus-wireless: Fix NULL pointer dereference
  arm64: vgic-v2: Fix proxying of cpuif access
  KVM: arm/arm64: vgic_init: Cleanup reference to process_maintenance
  KVM: arm64: Fix order of vcpu_write_sys_reg() arguments
  MAINTAINERS & files: Canonize the e-mails I use at files
  media: imx-media-csi: Fix inconsistent IS_ERR and PTR_ERR
  tools: power/acpi, revert to LD = gcc
  bdi: Fix oops in wb_workfn()
  RDMA/cma: Do not query GID during QP state transition to RTR
  IB/mlx4: Fix integer overflow when calculating optimal MTT size
  IB/hfi1: Fix memory leak in exception path in get_irq_affinity()
  IB/{hfi1, rdmavt}: Fix memory leak in hfi1_alloc_devdata() upon failure
  ...
2018-05-10 07:19:23 -04:00
Mauro Carvalho Chehab 3259081991 MAINTAINERS & files: Canonize the e-mails I use at files
From now on, I'll start using my @kernel.org as my development e-mail.

As such, let's remove the entries that point to the old
mchehab@s-opensource.com at MAINTAINERS file.

For the files written with a copyright with mchehab@s-opensource,
let's keep Samsung on their names, using mchehab+samsung@kernel.org,
in order to keep pointing to my employer, with sponsors the work.

For the files written before I join Samsung (on July, 4 2013),
let's just use mchehab@kernel.org.

For bug reports, we can simply point to just kernel.org, as
this will reach my mchehab+samsung inbox anyway.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Brian Warner <brian.warner@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 06:21:06 -04:00
Sean Young 95d1544eb6 media: rc: add ioctl to get the current timeout
Since the kernel now modifies the timeout, make it possible to retrieve
the current value.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-20 09:15:18 -04:00
Sean Young ed8c34d7ec media: rc: report receiver and transmitter type on device register
On the raspberry pi, we might have two lirc devices; one for sending and
one for receiving. This change makes it much more apparent which one
is which.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-20 09:12:43 -04:00
Hans Verkuil 1401b579fa media: extended-controls.rst: transmitter -> receiver
V4L2_CID_DV_RX_POWER_PRESENT refers to a receiver, not a transmitter.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-04 08:05:20 -04:00
Hans Verkuil cccc41fd3e media: media-types.rst: rename media-entity-type to media-entity-functions
The MEDIA_ENT_F_* defines refer to functions, not types. Update the
documentation accordingly.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-04 06:12:53 -04:00
Hans Verkuil 793d2a9e3d media: media-ioc-g-topology.rst: fix 'reserved' sizes
The size of the reserved arrays in the documentation is wrong. Sync
this with the actual header.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-04 06:12:52 -04:00
Hans Verkuil a54f2d9867 media: pixfmt-v4l2.rst: fix types
The v4l2_pix_format documentation still had 'enum's as types.
Replace by __u32 and add a reference to the enum.

Also put ycbcr_enc and hsv_enc in a union.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-04 06:12:52 -04:00
Hans Verkuil 54f6735abe media: pixfmt-v4l2-mplane.rst: fix types
The v4l2_pix_format_mplane documentation still had 'enum's as types.
Replace by __u8 and add a reference to the enum.

Also put ycbcr_enc and hsv_enc in a union.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-04 06:12:52 -04:00
Hans Verkuil f84a66d61e media: cec-pin-error-inj.rst: document CEC Pin Error Injection
The CEC Pin framework adds support for Error Injection.

Document all the error injections commands and how to use it.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22 08:54:21 -04:00
Mauro Carvalho Chehab 575c29bc9d media: extended-controls.rst: don't use adjustbox
LaTeX adjustbox is known to cause pdf documentation build breakages
with some newer Sphinx versions. So, don't use it.

While here, adjust table sizes in order to better produce the
pdf output.

Fixes: c0da55b95b ("media: v4l2: Documentation for HEVC CIDs")
Cc: Smitha T Murthy <smitha.t@samsung.com>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22 07:02:53 -04:00
Smitha T Murthy c0da55b95b media: v4l2: Documentation for HEVC CIDs
Added V4L2 controls for HEVC encoder.

with V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN_10 to match the code.

[s.nawrocki@samsung.com]: Replaced V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN10
Signed-off-by: Smitha T Murthy <smitha.t@samsung.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22 06:34:33 -04:00
Smitha T Murthy 49f607521f media: v4l2: Documentation of HEVC compressed format
Add V4L2 definition for HEVC compressed format which is also
known as H.265.

Signed-off-by: Smitha T Murthy <smitha.t@samsung.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22 06:31:29 -04:00
Hans Verkuil 579260a5ef media: pixfmt-v4l2.rst: fix broken enum :c:type
:c:type:: -> :c:type:

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22 06:21:51 -04:00
Luca Ceresoli e97c19074f media: doc: poll: fix links to dual-ioctl sections
Links like :ref:`VIDIOC_STREAMON` expand to "ioctl VIDIOC_STREAMON,
VIDIOC_STREAMOFF". Thus our reader will think we are talking about
STREAMON _and_ STREAMOFF, but only one of the two actually applies
in some cases.

Fix by adding a link title, so the reader will read only the correct
ioctl name.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 12:29:57 -05:00
Mauro Carvalho Chehab 76bf7087fb Merge commit 'v4.16-rc4~0' into patchwork
* commit 'v4.16-rc4~0': (900 commits)
  Linux 4.16-rc4
  memremap: fix softlockup reports at teardown
  libnvdimm: re-enable deep flush for pmem devices via fsync()
  MAINTAINERS: take over Kconfig maintainership
  vfio: disable filesystem-dax page pinning
  kconfig: fix line number in recursive inclusion error message
  Coccinelle: memdup: Fix typo in warning messages
  i2c: octeon: Prevent error message on bus error
  parisc: Reduce irq overhead when run in qemu
  parisc: Use cr16 interval timers unconditionally on qemu
  parisc: Check if secondary CPUs want own PDC calls
  parisc: Hide virtual kernel memory layout
  parisc: Fix ordering of cache and TLB flushes
  kconfig: Update ncurses package names for menuconfig
  kbuild/kallsyms: trivial typo fix
  kbuild: test --build-id linker flag by ld-option instead of cc-ldoption
  kbuild: drop superfluous GCC_PLUGINS_CFLAGS assignment
  kconfig: Don't leak choice names during parsing
  sh: fix build error for empty CONFIG_BUILTIN_DTB_SOURCE
  kconfig: set SYMBOL_AUTO to the symbol marked with defconfig_list
  ...
2018-03-05 07:39:06 -05:00
Sean Young 5817b3d15e media: rc: no need to announce major number
Since commit a60d64b15c ("media: lirc: lirc interface should not be
a raw decoder"), the message in the documentation is incorrect as the
module name is rc_core, not lirc_dev. Since the message is not useful,
just make the message debug and remove it from the documentation.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-27 08:15:32 -05:00
Hans Verkuil 84694edcae media: media-ioc-enum-entities/links.rst: document reserved fields
These structures have reserved fields that were never documented.

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>
2018-02-26 09:49:00 -05:00
Hans Verkuil ccac77dc71 media: document the reservedX fields in media_v2_topology
The MEDIA_IOC_G_TOPOLOGY documentation didn't document the reservedX
fields. Related to that was that the documented type of the num_* fields
was also wrong.

Fix both.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26 09:48:25 -05:00
Alexandre Courbot dfa2e02e01 media: media-types.rst: fix typo
with -> which

Signed-off-by: Alexandre Courbot <acourbot@chromium.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26 09:46:26 -05:00
Hans Verkuil 28aeead6c4 media: media-types.rst: fix type, small improvements
data conector -> connector

... -> etc.

'...' looked odd when my browser put the ... by itself on the next line, 'etc.'
is clearer IMHO.

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>
2018-02-26 09:46:03 -05:00
Hans Verkuil afd1179d56 media: media-ioc-g-topology.rst: fix interface-to-entity link description
The source_id and sink_id descriptions were the same for interface-to-entity
links. The source_id is the interface ID, not the entity ID. Fix this.

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>
2018-02-26 09:45:29 -05:00
Kieran Bingham 0018147c96 media: v4l: doc: Clarify v4l2_mbus_fmt height definition
The v4l2_mbus_fmt width and height corresponds directly with the
v4l2_pix_format definitions, yet the differences in documentation make
it ambiguous what to do in the event of field heights.

Clarify this using the same text as is provided for the v4l2_pix_format
which is explicit on the matter, and by matching the terminology of
'image height' rather than the misleading 'frame height'.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26 08:15:50 -05:00
Alexandre Courbot ac09b2ad5c media: v4l: vidioc-prepare-buf.rst: fix link to VIDIOC_QBUF
The description for VIDIOC_PREPARE_BUF results in the following
sentence: "...before actually enqueuing it, using the ioctl VIDIOC_QBUF,
VIDIOC_DQBUF ioctl...".

The intent is to only refer to VIDIOC_QBUF though, so fix this.

Signed-off-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26 08:04:40 -05:00
Gustavo Padovan 59e18d7c50 media: buffer.rst: fix link text of VIDIOC_QBUF
The link was showing both VIDIOC_QBUF, VIDIOC_DQBUF while it should show
only VIDIOC_QBUF in this case.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.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>
2018-02-26 07:46:44 -05:00
Mauro Carvalho Chehab 9c171cdf22 media: dvb: add continuity error indicators for memory mapped buffers
While userspace can detect discontinuity errors, it is useful to
also let Kernelspace reporting discontinuity, as it can help to
identify if the data loss happened either at Kernel or userspace side.

Update documentation accordingly.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-23 05:28:41 -05:00
Tim Harvey 5271a98cd8 media: add digital video decoder entity functions
Add a new media entity function definition for digital TV decoders:
MEDIA_ENT_F_DTV_DECODER

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-22 12:43:47 -05:00
Hans Verkuil bd2a0f082b media: vidioc-g-parm.rst: also allow _MPLANE buffer types
The specification mentions that type can be V4L2_BUF_TYPE_VIDEO_CAPTURE,
but the v4l2 core implementation also allows the _MPLANE variant.

Document this.

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>
2018-02-22 12:32:25 -05:00
Sean Young e3cd973429 media: lirc: lirc mode ioctls deal with current mode
The ioctl change the current mode or return the current mode; they
do not tell you which modes are possible (use the lirc features
ioctl for that).

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 07:25:26 -05:00
Sean Young 02d742f4b2 media: lirc: lirc daemon fails to detect raw IR device
Since commit 9b6192589b ("media: lirc: implement scancode sending"),
and commit de142c3241 ("media: lirc: implement reading scancode")
the lirc features ioctl for raw IR devices advertises two modes for
sending and receiving.

The lirc daemon now fails to detect a raw IR device, both for transmit
and receive.

To fix this, do not advertise the scancode mode in the lirc features
for raw IR devices (however do keep it for scancode devices). The mode
can still be used via the LIRC_SET_{REC,SEND}_MODE ioctl.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 07:24:01 -05:00
Guennadi Liakhovetski 563a01e101 media: v4l: Add a UVC Metadata format
Add a pixel format, used by the UVC driver to stream metadata.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-04 06:39:18 -05:00
Sakari Ailus e3401c2d38 media: v4l: Fix references in Intel IPU3 Bayer documentation
The references in Intel IPU3 Bayer format documentation were wrong. Fix
them.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-29 08:39:26 -05:00
Yong Zhi e62f528255 media: doc-rst: add IPU3 raw10 bayer pixel format definitions
The formats added by this patch are:

    V4L2_PIX_FMT_IPU3_SBGGR10
    V4L2_PIX_FMT_IPU3_SGBRG10
    V4L2_PIX_FMT_IPU3_SGRBG10
    V4L2_PIX_FMT_IPU3_SRGGB10

Signed-off-by: Hyungwoo Yang <hyungwoo.yang@intel.com>
Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-29 06:35:08 -05:00
Mauro Carvalho Chehab a114a585be media: dvb-core: get rid of mmap reserved field
The "reserved" field was a way, used at V4L2 API, to add new
data to existing structs without breaking userspace. However,
there are now clever ways of doing that, without needing to add
an uneeded overhead. So, get rid of them.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-28 11:17:31 -05:00
Mauro Carvalho Chehab a1f18fdc72 media: dvb uAPI docs: document mmap-related ioctls
5 new ioctls were added to the DVB demux API, in order to
handle memory maped I/O. Add documentation for them.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-28 11:17:30 -05:00
Mauro Carvalho Chehab f8aaf48771 media: dvb uAPI docs: document demux mmap/munmap syscalls
With the new dmx mmap interface, those two syscalls are now
handled by the subsystem. Document them.

This patch is based on the V4L2 text for those ioctls.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-28 11:17:30 -05:00
Athanasios Oikonomou f9d7912619 media: dvb_frontend: add physical layer scrambling support
This commit adds a new property DTV_SCRAMBLING_SEQUENCE_INDEX.

This 18 bit field, when present, carries the index of the DVB-S2 physical
layer scrambling sequence as defined in clause 5.5.4 of EN 302 307.
There is no explicit signalling method to convey scrambling sequence index
to the receiver. If S2 satellite delivery system descriptor is available
it can be used to read the scrambling sequence index (EN 300 468 table 41).

By default, gold scrambling sequence index 0 is used. The valid scrambling
sequence index range is from 0 to 262142.

Increase the DVB API version in order userspace to be aware of the changes.

Signed-off-by: Athanasios Oikonomou <athoik@gmail.com>
Acked-by: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-19 07:08:12 -05:00
Sean Young dde7edff35 media: lirc: when transmitting scancodes, block until transmit is done
The semantics for lirc IR transmit with raw IR is that the write call
should block until the IR is transmitted. Some drivers have no idea
when this actually is (e.g. mceusb), so there is a wait.

This is useful for userspace, as it might want to send a IR button press,
a gap of a predefined number of milliseconds, and then send a repeat
message.

It turns out that for transmitting scancodes this feature is even more
useful, as user space has no idea how long the IR is. So, maintain
the existing semantics for IR scancode transmit.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 15:19:57 -05:00
Hans Verkuil d9806f11b3 media: vidioc-g-dv-timings.rst: fix typo (frontporch -> backporch)
The description of V4L2_DV_FL_HALF_LINE mixed up frontporch with backporch.

It's the backporch that has different sizes for interlaced formats, the frontporch
remains constant.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 12:39:14 -05:00
Mauro Carvalho Chehab c6b73bfcea media: RC docs: add enum rc_proto description at the docs
This is part of the uAPI. Add it to the documentation again,
and fix cross-references.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Sean Young <sean@mess.org>
2017-12-14 10:35:30 -05:00
Sean Young 7d402db89b media: lirc: document LIRC_MODE_SCANCODE
Lirc supports a new mode which requires documentation.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 10:35:21 -05:00
Sean Young bf01c82474 media: lirc: remove name from lirc_dev
This is a duplicate of rcdev->driver_name.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 10:35:20 -05:00
Sean Young 4e3cd001fd media: lirc: remove LIRCCODE and LIRC_GET_LENGTH
LIRCCODE is a lirc mode where a driver produces driver-dependent
codes for receive and transmit. No driver uses this any more. The
LIRC_GET_LENGTH ioctl was used for this mode only.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 10:35:14 -05:00
Linus Torvalds 5d352e69c6 media updates for v4.15-rc1
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Merge tag 'media/v4.15-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - Documentation for digital TV (both kAPI and uAPI) are now in sync
   with the implementation (except for legacy/deprecated ioctls). This
   is a major step, as there were always a gap there

 - New sensor driver: imx274

 - New cec driver: cec-gpio

 - New platform driver for rockship rga and tegra CEC

 - New RC driver: tango-ir

 - Several cleanups at atomisp driver

 - Core improvements for RC, CEC, V4L2 async probing support and DVB

 - Lots of drivers cleanup, fixes and improvements.

* tag 'media/v4.15-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (332 commits)
  dvb_frontend: don't use-after-free the frontend struct
  media: dib0700: fix invalid dvb_detach argument
  media: v4l2-ctrls: Don't validate BITMASK twice
  media: s5p-mfc: fix lockdep warning
  media: dvb-core: always call invoke_release() in fe_free()
  media: usb: dvb-usb-v2: dvb_usb_core: remove redundant code in dvb_usb_fe_sleep
  media: au0828: make const array addr_list static
  media: cx88: make const arrays default_addr_list and pvr2000_addr_list static
  media: drxd: make const array fastIncrDecLUT static
  media: usb: fix spelling mistake: "synchronuously" -> "synchronously"
  media: ddbridge: fix build warnings
  media: av7110: avoid 2038 overflow in debug print
  media: Don't do DMA on stack for firmware upload in the AS102 driver
  media: v4l: async: fix unregister for implicitly registered sub-device notifiers
  media: v4l: async: fix return of unitialized variable ret
  media: imx274: fix missing return assignment from call to imx274_mode_regs
  media: camss-vfe: always initialize reg at vfe_set_xbar_cfg()
  media: atomisp: make function calls cleaner
  media: atomisp: get rid of storage_class.h
  media: atomisp: get rid of wrong stddef.h include
  ...
2017-11-15 20:30:12 -08:00
Tom Saeger a405ed85ca Documentation: fix media related doc refs
Make media doc refs valid.

Signed-off-by: Tom Saeger <tom.saeger@oracle.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-10-12 11:15:06 -06:00
Mauro Carvalho Chehab b33494e950 media: dvb uAPI docs: get rid of examples section
That section is too outdated and got superseded by DVBv5 and
by libdvbv5.

Maybe some day we'll end adding updated examples there, but
while nobody has time or interest of doing that, just mention
that there and get rid of the current examples for good.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-11 13:22:55 -04:00
Mauro Carvalho Chehab b5b03a2009 media: dvb-net.rst: document DVB network kAPI interface
That's the last DVB kAPI that misses documentation.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-11 13:22:09 -04:00
Mauro Carvalho Chehab 259a41d9ae media: dvb_frontend: fix return values for FE_SET_PROPERTY
There are several problems with regards to the return of
FE_SET_PROPERTY. The original idea were to return per-property
return codes via tvp->result field, and to return an updated
set of values.

However, that never worked. What's actually implemented is:

- the FE_SET_PROPERTY implementation doesn't call .get_frontend
  callback in order to get the actual parameters after return;

- the tvp->result field is only filled if there's no error.
  So, it is always filled with zero;

- FE_SET_PROPERTY doesn't call memdup_user() nor any other
  copy_to_user() function. So, any changes to the properties
  will be lost;

- FE_SET_PROPERTY is declared as a write-only ioctl (IOW).

While we could fix the above, it could cause regressions.

So, let's just assume what the code really does, updating
the documentation accordingly and removing the logic that
would update the discarded tvp->result.

Reviewed-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-11 12:58:40 -04:00
Hans Verkuil 00f7adff0c media: cec-ioc-dqevent.rst: document new CEC_EVENT_PIN_HPD_LOW/HIGH events
Document these new CEC events.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-23 07:49:27 -04:00
Hans Verkuil da634f623e media: cec-core.rst/cec-ioc-receive.rst: clarify CEC_TX_STATUS_ERROR
CEC_TX_STATUS_ERROR can be used if the HW cannot tell LOST_ARB and
LOW_DRIVE apart, or when some other error occurs. It is not a
replacement for NACK.

So the hardware must be able to tell the difference between OK, NACK and
'something else'.

Clarify the documentation (both public and kernel API) on this point.

Also fix two small typos (this messages -> this message).

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-23 07:41:38 -04:00
Hans Verkuil 9a59d9361a media: cec-ioc-dqevent.rst: fix typo
The documentation talked about INITIAL_VALUE when the actual define is
INITIAL_STATE.

Fix this.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-23 07:40:25 -04:00
Mauro Carvalho Chehab da68249219 media: dvb uapi: move frontend legacy API to another part of the book
There's a chapter for the legacy APIs. Move the frontend DVBv3
API to it, and update the chapter's introduction accordingly.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 07:09:57 -04:00
Mauro Carvalho Chehab 1e13c184dc media: pixfmt-srggb12p.rst: better format the table for PDF output
Adjust the table to be better displayed on PDF output.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:33:16 -04:00
Sakari Ailus debc313a18 media: docs-rst: media: Don't use \small for V4L2_PIX_FMT_SRGGB10 documentation
There appears to be an issue in using \small in certain cases on Sphinx
1.4 and 1.5. Other format documents don't use \small either, remove it
from here as well.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>

[mchehab@s-opensource.com: kept tabularcolumns - readjusted - and
 add a few blank lines for it to display better]
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:32:54 -04:00
Mauro Carvalho Chehab 679f4d6ea5 media: pixfmt*.rst: replace a two dots by a comma
On several tables, the color sample location table preamble is
written as:
	Color Sample Location..
Instead of:
	Color Sample Location:

I suspect that the repetition of such pattern was due to some
copy-and-paste (or perhaps some error during DocBook conversion).

Anyway, fix it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:30:26 -04:00
Mauro Carvalho Chehab 9eaafad610 media: vidioc-g-fmt.rst: adjust table format
While doing a visual inspection with Sphinx 1.5, I noticed that
one of the columns was smaller than the text written there.

As this is the only thing I noticed with Sphinx 1.5, I suspect
that this was also a problem with Sphinx 1.4. Yet, I opted to
touch it in a way that wouldn't cause backward issues.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:30:01 -04:00
Mauro Carvalho Chehab f9e628213d media: v4l2 uapi book: get rid of driver programming's chapter
It doesn't make any sense having a driver programming's chapter
at the uAPI book, as this is related to kernel API. Also,
we now have such kAPI book where V4L2 driver programming is covered.

So, get rid of this left-over.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:29:20 -04:00
Mauro Carvalho Chehab 5a93bb931e media: format.rst: use the right markup for important notes
There's an important note there, but it is not using the
ReST markup. So, it doesn't get any visual highlight on
the output.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:29:03 -04:00
Mauro Carvalho Chehab 1b41d94bb5 media: docs: don't show ToC for each part on PDF output
The "Table of Contents" of a PDF file is generated only once,
at the beginning fo the output. It doesn't produce it on
each part.

So, don't output this text on each part of the document.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:27:50 -04:00
Mauro Carvalho Chehab f989420788 media: cec uapi: Adjust table sizes for PDF output
Several tables at this media book chapter have issues
when PDF is produced. Adjust them.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:27:28 -04:00
Mauro Carvalho Chehab 1367f4ee6e media: mc uapi: adjust some table sizes for PDF output
Some cells are too small to fit the text written to it.

Increase it. No text changes.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:27:09 -04:00
Mauro Carvalho Chehab 432e6be476 media: rc-sysfs-nodes.rst: better use literals
A literal box provides a better visual when pdf and html output
is generated for things like the output of a sysfs devnode.
It alsod matches other conventions used within the media book.

So, use it.

While here, use literals for protocol names.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:26:51 -04:00
Mauro Carvalho Chehab b5dd3eac84 media: docs: fix PDF build with Sphinx 1.4
Commit 70b074df4e ("media: fix pdf build with Spinx 1.6") caused
a regression at Sphinx 1.4 PDF build: although it produces a full
document in batch mode, it returns errors on interactive mode:

	[63]
	Runaway argument?
	{\relax
	! Paragraph ended before \multicolumn was complete.
	<to be read again>
	                   \par
	l.7703 \hline\end{tabulary}

The error seems to be due to some bug at Sphinx PDF output:
when multicolumns is used, it doesn't accept an empty string.

Just removing the :cpan:`1` and replacing by two empty
columns fix the issue.

Fixes: 70b074df4e ("media: fix pdf build with Spinx 1.6")

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:26:37 -04:00
Mauro Carvalho Chehab b75c1d85c3 media: v4l uAPI docs: adjust some tables for PDF output
On tests with Spinx 1.4, some tables are still writing text
outside cells. Adjust those tables.

PS.: As this was revisited several times, I suspect that this
will only be fully fixed if we add tabularcolumns to all tables
at the V4L2 part of the book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:25:58 -04:00
Mauro Carvalho Chehab 4d6436962a media: vidioc-g-tuner.rst: Fix table number of cols
The Tuner Audio Matrix table is broken: the first row has 7
columns instead of 6, causing it to be parsed wrong and displayed
very badly on PDF output.

Fix it and adjust the table to look nice at PDF output

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:24:59 -04:00
Mauro Carvalho Chehab d39d708522 media: vidioc-querycap: use a more realistic value for KERNEL_VERSION
In the past, V4L2 versions were 0.x.y, but that changed years
ago. Since Kernel 3.1, however, the numbering schema was changed
to match the Kernel version.

However, the presented example still uses the old numerating
schema, with is a misleading information.

So, update it to the new schema.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:24:45 -04:00
Mauro Carvalho Chehab 1473c75e9a media: v4l uAPI: add descriptions for arguments to all ioctls
Several ioctls are missing descriptions for the third argument
of the ioctl() command. They should have a description, as
otherwise the output won't be ok, and will sound like something
is missing.

So, add them.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:24:28 -04:00
Mauro Carvalho Chehab 7e6854a9bf media: ca.h: document ca_msg and the corresponding ioctls
Usually, CA messages are sent/received via reading/writing at
the CA device node. However, two drivers (dst_ca and firedtv-ci)
also implement it via ioctls.

Apparently, on both cases, the net result is the same.

Anyway, let's document it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:23:28 -04:00
Mauro Carvalho Chehab bd9049edc6 media: ca docs: document CA_SET_DESCR ioctl and structs
The av7110 driver uses CA_SET_DESCR to store the descrambler
control words at the CA descrambler slots.

Document it.

Thanks-to: Honza Petrouš <jpetrous@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:23:07 -04:00
Mauro Carvalho Chehab 56d51b65bc media: net.h: add kernel-doc and use it at Documentation/
As we did with frontend.h, ca.h and dmx.h, move the struct
definition to net.h.

That should help to keep it updated, as more stuff gets
added there.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:22:42 -04:00
Mauro Carvalho Chehab 7e30c077d4 media: intro.rst: don't assume audio and video codecs to be MPEG2
Originally, when DVB was introduced, all codecs would be part of
MPEG2 standard. That's not true anymore, as there are a large
number of codec standards used on digital TV nowadays.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:20:28 -04:00
Mauro Carvalho Chehab 90b588a9b4 media: dvbstb.svg: use dots for the optional parts of the hardware
The hardware description mentions that some parts are optional.
Make it clearer at the drawing.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:20:13 -04:00
Mauro Carvalho Chehab 76df39fa82 media: dmx-get-pes-pids.rst: document the ioctl
This ioctl is supported by the DVB core, but was never
documented.

Add a documentation for it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:19:50 -04:00
Mauro Carvalho Chehab 883dfe8ae6 media: dvb uAPI docs: minor editorial changes
Do minor editorial changes to improve documentation readability:

- mark literals as such;
- add table markups to hint sizes;
- define what PES means;
- instead of hardcoding devnode numbers to zero (like adapter0/) use a
  question mark, to indicate that multiple devnodes may exist;
- add cross-references where useful.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:19:32 -04:00
Mauro Carvalho Chehab 8e3195101b media: dvbapi.rst: add an entry to DVB revision history
There are several missing items at the API history. Yet,
as we're doing a significant change there, add a new entry.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:19:04 -04:00
Mauro Carvalho Chehab 536593acc7 media: dvb-frontend-parameters.rst: fix the name of a struct
The struct that contains an union of DVB parameters is
called dvb_frontend_parameters (and not FrontendParameters).

Fix it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:18:47 -04:00
Mauro Carvalho Chehab 02a3c98c6b media: dmx-fread.rst: specify how DMX_CHECK_CRC works
In the past, the documentation used to say that, if a CRC error
was found, a "-ECRC" error would be returned. That's not true:
the DVB core will just silently ignore such errors.

So, add an explicit note about that.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:18:28 -04:00
Mauro Carvalho Chehab 699f19e3f1 media: dvb uAPI docs: Prefer use "Digital TV instead of "DVB"
The usage of the term "DVB" at the dvb API docs is confusing,
as, right now, it can refer to either the European digital TV
standard or to the subsystem.

So, prefer calling it as "Digital TV" on most places, to avoid
ambiguity.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:18:03 -04:00
Mauro Carvalho Chehab 0de6357aca media: ca-fopen.rst: Fixes the device node name for CA
The device node name for CA is wrong since ever. I suspect
that the name there was before DVBv3 (with was the first API
introduced at the Kernel).

Anyway, use the right name there.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:17:14 -04:00
Mauro Carvalho Chehab 9a721b9b4b media: dvb uAPI docs: adjust return value ioctl descriptions
There are several issues on the return value for ioctls:

- Text is confusing;
- Some error codes don't exist;
- The non-generic error codes should come before the text
  that points to the generic error codes;
- Tables don't contain column size hints;
- Some references are not marked as such.

Correct them.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:16:37 -04:00
Mauro Carvalho Chehab 4e3b0cab6d media: gen-errors.rst: document ENXIO error code
This error can be produced at least at the DVB subsystem.

As it is generic enough, document it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:15:21 -04:00