Commit Graph

281 Commits

Author SHA1 Message Date
Sakari Ailus
50435d8dbc media: v4l: Documentation: Serial busses use parallel mbus codes
When the support for serial busses was introduced in V4L2, it was decided
to use the existing parallel bus media bus pixel codes to describe them.
While this was a practical choice at the time, it necessitates choosing
which one of the many parallel mbus pixel codes to use, for on the serial
busses these formats are effectively all equivalent.

The practice has always been to use the pixel code that describes a bus
that transfers a single sample per clock. Document this.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-08-15 08:08:47 -03:00
Pawel Osciak
a57d6acaf3 media: uapi: Add VP8 stateless decoder API
Add the parsed VP8 frame pixel format and controls, to be used
with the new stateless decoder API for VP8 to provide parameters
for accelerator (aka stateless) codecs.

Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Pawel Osciak <posciak@chromium.org>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-07-22 15:13:28 -04:00
Luca Ceresoli
8c937ab966 media: docs: v4l2-controls: fix sentence rendered in a nonsense way
This sentence renders as:

> Since such compound controls need to expose more information about
> themselves than is possible with ioctls VIDIOC_QUERYCTRL,
> VIDIOC_QUERY_EXT_CTRL and VIDIOC_QUERYMENU the VIDIOC_QUERY_EXT_CTRL
  ^^^^^^^^^^^^^^^^^^^^^                          ^^^^^^^^^^^^^^^^^^^^^
> ioctl was added.

This does not make sense. Fix by providing an explicit link text. This
results in:

> Since such compound controls need to expose more information about
> themselves than is possible with VIDIOC_QUERYCTRL the
> VIDIOC_QUERY_EXT_CTRL ioctl was added.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-06-21 17:13:03 -04:00
Luca Ceresoli
e050f55207 media: docs: v4l2-controls: fix indentation
Fix indentation in example C code.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-06-21 17:02:44 -04:00
Luca Ceresoli
7239682847 media: docs: v4l2-controls: remove repeated ioctl names
Mentioning :ref:`VIDIOC_QUERYCTRL` renders all the three related ioctls.
Explicitly adding VIDIOC_QUERY_EXT_CTRL and VIDIOC_QUERYMENU will make
them render twice, so remove them

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-06-21 17:02:10 -04:00
Tomasz Figa
13d93380fc media: Clarify the meaning of file descriptors in VIDIOC_DQBUF
When the application calls VIDIOC_DQBUF with the DMABUF memory type, the
v4l2_buffer structure (or v4l2_plane structures) are filled with DMA-buf
file descriptors. However, the current documentation does not explain
whether those are new file descriptors referring to the same DMA-bufs or
just the same integers as passed to VIDIOC_QBUF back in time. Clarify
the documentation that it's the latter.

Signed-off-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-06-21 16:29:56 -04:00
Stanimir Varbanov
84060c65a8 media: media/doc: Allow sizeimage to be set by v4l clients
This changes v4l2_pix_format and v4l2_plane_pix_format sizeimage
field description to allow v4l clients to set bigger image size
in case of variable length compressed data.

Presently s5p-mfc and mtk-vcodec codec drivers use that. Lets
make it obvious in the documentation.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-06-05 12:41:39 -04:00
Maxime Ripard
67e84a98af media: pixfmt: Add H264_SLICE_RAW format documentation
The H264_SLICE_RAW format introduced before is meant for stateless
decoders that will need the H264 parsed slice data without the start code.

Let's document it.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-29 06:27:18 -04:00
Pawel Osciak
1f0545d3ed media: uapi: Add H264 low-level decoder API compound controls.
Stateless video codecs will require both the H264 metadata and slices in
order to be able to decode frames.

This introduces the definitions for the structures used to pass the
metadata from the userspace to the kernel.

[hverkuil-cisco@xs4all.nl: add space after . in ".For"]
[hverkuil-cisco@xs4all.nl: sync v4l2_ctrl_h264_decode_params struct layout with header]

Co-developed-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Pawel Osciak <posciak@chromium.org>
Signed-off-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-29 06:25:09 -04:00
Philipp Zabel
5902bca94a media: v4l2-ctrl: add MPEG-2 profile and level controls
Add MPEG-2 CID definitions for profiles and levels defined in ITU-T Rec.
H.262.

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>
2019-05-29 06:19:12 -04:00
Steve Longerbeam
a82c3149ad media: docs-rst: Clarify older field vs. first transmitted field
Add a paragraph to make it more clear that video equipment will transmit
fields in the same order the fields were captured, and replace some of
the "is transmitted first" language with "is the older field", since the
latter is the important info for motion compensation applications.

Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-28 12:25:37 -04:00
Hans Verkuil
823a633eeb media: field-order.rst: clarify FIELD_ANY and FIELD_NONE
Rephrased the FIELD_ANY description: rather than explicitly list
field values, just say 'when any field format is acceptable'. The
list of FIELD values was outdated, so it was a bit confusing.

The FIELD_NONE description said that 'The driver may also indicate
this order when it cannot distinguish between V4L2_FIELD_TOP and
V4L2_FIELD_BOTTOM'. This is false, NONE really means a full frame
and userspace depends on that. So drop this line completely. There
are no drivers that do this anyway.

FIELD_TOP/BOTTOM/ALTERNATE indicate that the number of lines in the
buffer are that of a field, not frame, so returning NONE here would
cause huge problems.

Finally attempt to clarify 'progressive' and 'interlaced' a little
bit.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-08 14:01:57 -04:00
Laurent Pinchart
8b65db13bf media: v4l: Add definitions for missing 16-bit RGB555 formats
The V4L2 API is missing the 16-bit RGB555 formats for the RGBA, RGBX,
ABGR, XBGR, BGRA and BGRX component orders. Add them, using the same
4CCs as DRM.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-04-25 11:05:33 -04:00
Laurent Pinchart
6c84f9b1d2 media: v4l: Add definitions for missing 16-bit RGB4444 formats
The V4L2 API is missing the 16-bit RGB4444 formats for the RGBA, RGBX,
ABGR, XBGR, BGRA and BGRX component orders. Add them, using the same
4CCs as DRM.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-04-25 11:04:54 -04:00
Laurent Pinchart
e25ec91411 media: v4l: Add definitions for missing 32-bit RGB formats
The V4L2 API is missing the 32-bit RGB formats for the ABGR, XBGR, RGBA
and RGBX component orders. Add them, using the same 4CCs as DRM.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-04-25 10:59:20 -04:00
Mickael Guene
e3521f5687 media: uapi: Add MEDIA_BUS_FMT_BGR888_3X8 media bus format
This patch adds MEDIA_BUS_FMT_BGR888_3X8 used by STM MIPID02 CSI-2 to
PARALLEL bridge driver when input format is MEDIA_BUS_FMT_BGR888_1X24.

Signed-off-by: Mickael Guene <mickael.guene@st.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-04-22 11:35:43 -04:00
Fish Lin
87effaae9e media: v4l: add I / P frame min max QP definitions
Add following V4L2 QP parameters for H.264:
* V4L2_CID_MPEG_VIDEO_H264_I_FRAME_MIN_QP
* V4L2_CID_MPEG_VIDEO_H264_I_FRAME_MAX_QP
* V4L2_CID_MPEG_VIDEO_H264_P_FRAME_MIN_QP
* V4L2_CID_MPEG_VIDEO_H264_P_FRAME_MAX_QP

These controls will limit QP range for intra and inter frame,
provide more manual control to improve video encode quality.

Signed-off-by: Fish Lin <linfish@google.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-04-22 10:25:36 -04:00
Mauro Carvalho Chehab
94fa831e3b media: pdf docs: adjust several tables for better display
Avoid cell overlapping by changing some sizes, and changing the
font sizes when needed.

Tested with Sphinx 1.7.8.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-29 20:37:38 -04:00
Mauro Carvalho Chehab
8b0a61d1f7 media: pixfmt-packed-yuv.rst: fix PDF output
Some lines inside this table has more than 34 columns, which isn't
what is expected, according to the .. tabularcolumns:: definition.

That causes the PDF output to fail.

This patch ensures that all columns will have exactly the same
size, merging the unused ones using :cpan:

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-29 20:37:38 -04:00
Dafna Hirschfeld
ee3963c492 media: vicodec: add documentation to V4L2_PIX_FMT_FWHT_STATELESS
add documentation to V4L2_PIX_FMT_FWHT_STATELESS
in pixfmt-compressed.rst

Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-25 14:01:20 -04:00
Dafna Hirschfeld
f94368e3b0 media: vicodec: add documentation to V4L2_CID_MPEG_VIDEO_FWHT_PARAMS
add documentation to V4L2_CID_MPEG_VIDEO_FWHT_PARAMS
control and its related 'v4l2_ctrl_fwht_params' struct

[mchehab+samsung@kernel.org: remove extra blank lines]
Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-25 14:00:11 -04:00
Dafna Hirschfeld
b663e57cb4 media: vicodec: add documentation to V4L2_CID_FWHT_I/P_FRAME_QP
add documentation to V4L2_CID_FWHT_I/P_FRAME_QP
controls in ext-ctrls-codec.rst

[mchehab+samsung@kernel.org: remove extra blank lines]
Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-25 13:54:35 -04:00
Hans Verkuil
e79c7159d4 media: media requests: return EBADR instead of EACCES
If requests are used when they shouldn't, or not used when they should,
then return EBADR (Invalid request descriptor) instead of EACCES.

The reason for this change is that EACCES has more to do with permissions
(not being the owner of the resource), but in this case the request file
descriptor is just wrong for the current mode of the device.

Update the documentation accordingly.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-25 13:26:10 -04:00
Hans Verkuil
90675d391e media: vb2: add requires_requests bit for stateless codecs
Stateless codecs require the use of the Request API as opposed of it
being optional.

So add a bit to indicate this and let vb2 check for this.

If an attempt is made to queue a buffer without an associated request,
then the EBADR error is returned to userspace.

Doing this check in the vb2 core simplifies drivers, since they
don't have to check for this, they can just set this flag.

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>
2019-03-25 13:24:47 -04:00
Mauro Carvalho Chehab
adf48e3f1f media: Documentation: fix several typos
Use codespell to fix lots of typos over frontends.

Manually verified to avoid false-positives.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-01 09:54:06 -05:00
Yong Zhi
b8726aea59 media: ipu3: update meta format documentation
Language improvements, fix entity naming, make pipeline a graph and move
device usage documentation to device documentation ipu3.rst.

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+samsung@kernel.org>
2019-02-18 15:16:58 -05:00
Hans Verkuil
4f14e3272f extended-controls.rst: split up per control class
The extended-controls.rst file had become too big. Split it up: each
control class reference gets its own rst file, and this file just
describes the Extended Control API.

Each control class reference is also moved up one level into the
table of contents to make it easier to find e.g. the codec control
reference.

Finally I rearranged the order so that all camera-related control
classes are grouped together, ditto for codec/jpeg and fm-rx/tx.

The ext-ctrls-codec.rst is still pretty big and it is a candidate
to split up further in the future, possibly per codec.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-02-18 14:55:41 -05:00
Vivek Kasireddy
a7fe4ca72b media: v4l: Add 32-bit packed YUV formats
The formats added in this patch include:
 V4L2_PIX_FMT_AYUV32
 V4L2_PIX_FMT_XYUV32
 V4L2_PIX_FMT_VUYA32
 V4L2_PIX_FMT_VUYX32

These formats enable the trasmission of alpha channel data to other
drivers and userspace applications in addition to YUV data. For
example, buffers generated by drivers in one of these formats
can be used by the Weston compositor to display as a texture or
flipped directly onto the overlay planes with the help of a DRM
driver.

Signed-off-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-02-18 14:31:01 -05:00
Hans Verkuil
49179ff480 media: Documentation/media: rename "Codec Interface"
The "Codec Interface" chapter is poorly named since codecs are just one
use-case of the Memory-to-Memory Interface. Rename it and clean up the
text a bit.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-25 18:54:18 -02:00
Hans Verkuil
0b7a4b41ab media: dev-teletext.rst: remove obsolete teletext interface
The teletext interface has been dead for years now, just
remove it.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-25 18:49:43 -02:00
Hans Verkuil
b4ba92d56b media: dev-effect.rst: remove unused Effect Interface chapter
We never had an effect interface, and if you want to do such
things you use the mem2mem interface instead.

Just drop this from the spec.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-25 18:47:59 -02:00
Hans Verkuil
07b8fd8655 media: vidioc-prepare-buf.rst: drop reference to NO_CACHE flags
This was never implemented, so do not document this.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-21 15:45:31 -02:00
Philipp Zabel
d034696cbe media: v4l2-ctrl: Add control for h.264 chroma qp offset
Allow to add fixed quantization parameter offset between luma and
chroma quantization parameters. This control directly corresponds
to the chroma_qp_index_offset field of the h.264 picture parameter
set.

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>
2019-01-16 14:03:19 -05:00
Philipp Zabel
50656bad78 media: v4l2-ctrl: Add control to enable h.264 constrained intra prediction
Allow to enable h.264 constrained intra prediction (macroblocks using
intra prediction modes are not allowed to use residual data and decoded
samples of neighboring macroblocks coded using inter prediction modes).
This control directly corresponds to the constrained_intra_pred_flag
field in the h.264 picture parameter set.

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>
2019-01-16 14:02:14 -05:00
Sakari Ailus
3eefa620d0 media: Documentation: staging/ipu3-imgu: Add license information
The driver documentation is under GPL v2 and the uAPI documentation under
GNU FDL 1.1+ (without invariant sections) or GPL v2.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-07 13:49:12 -05:00
Hans Verkuil
bb03641f8a media: extended-controls.rst: update the mpeg2 compound controls
The layout of the compound controls has changed to fix
32/64 bit alignment issues and the use of timestamps instead of
buffer indices to refer to buffers.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-07 13:21:50 -05:00
Hans Verkuil
0e9109ffde media: buffer.rst: clean up timecode documentation
V4L2_BUF_FLAG_TIMECODE is not video capture specific, so drop that
part.

The 'Timecodes' section was a bit messy, so that's cleaned up.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-07 13:17:56 -05:00
Linus Torvalds
3868772b99 A fairly normal cycle for documentation stuff. We have a new
document on perf security, more Italian translations, more
 improvements to the memory-management docs, improvements to the
 pathname lookup documentation, and the usual array of smaller
 fixes.
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Merge tag 'docs-5.0' of git://git.lwn.net/linux

Pull documentation update from Jonathan Corbet:
 "A fairly normal cycle for documentation stuff. We have a new document
  on perf security, more Italian translations, more improvements to the
  memory-management docs, improvements to the pathname lookup
  documentation, and the usual array of smaller fixes.

  As is often the case, there are a few reaches outside of
  Documentation/ to adjust kerneldoc comments"

* tag 'docs-5.0' of git://git.lwn.net/linux: (38 commits)
  docs: improve pathname-lookup document structure
  configfs: fix wrong name of struct in documentation
  docs/mm-api: link slab_common.c to "The Slab Cache" section
  slab: make kmem_cache_create{_usercopy} description proper kernel-doc
  doc:process: add links where missing
  docs/core-api: make mm-api.rst more structured
  x86, boot: documentation whitespace fixup
  Documentation: devres: note checking needs when converting
  doc🇮🇹 add some process/* translations
  doc🇮🇹 fixes in process/1.Intro
  Documentation: convert path-lookup from markdown to resturctured text
  Documentation/admin-guide: update admin-guide index.rst
  Documentation/admin-guide: introduce perf-security.rst file
  scripts/kernel-doc: Fix struct and struct field attribute processing
  Documentation: dev-tools: Fix typos in index.rst
  Correct gen_init_cpio tool's documentation
  Document /proc/pid PID reuse behavior
  Documentation: update path-lookup.md for parallel lookups
  Documentation: Use "while" instead of "whilst"
  dmaengine: Add mailing list address to the documentation
  ...
2018-12-29 11:21:49 -08:00
Linus Torvalds
996680d461 media fixes for v4.20-rc8
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Merge tag 'media/v4.20-7' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull more media updates from Mauro Carvalho Chehab:
 "The Intel IPU3 camera driver"

* tag 'media/v4.20-7' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (23 commits)
  media: staging/ipu3-imgu: Add MAINTAINERS entry
  media: staging/ipu3-imgu: Address documentation comments
  media: v4l: Add Intel IPU3 meta buffer formats
  media: doc-rst: Add Intel IPU3 documentation
  media: ipu3-imgu: Fix firmware binary location
  media: ipu3-imgu: Fix compiler warnings
  media: staging/intel-ipu3: Add dual pipe support
  media: staging/intel-ipu3: Add Intel IPU3 meta data uAPI
  media: staging/intel-ipu3: Add imgu top level pci device driver
  media: staging/intel-ipu3: Add v4l2 driver based on media framework
  media: staging/intel-ipu3: Add css pipeline programming
  media: staging/intel-ipu3: css: Initialize css hardware
  media: staging/intel-ipu3: css: Compute and program ccs
  media: staging/intel-ipu3: css: Add static settings for image pipeline
  media: staging/intel-ipu3: css: Add support for firmware management
  media: staging/intel-ipu3: css: Add dma buff pool utility functions
  media: staging/intel-ipu3: Implement DMA mapping functions
  media: staging/intel-ipu3: mmu: Implement driver
  media: staging/intel-ipu3: abi: Add structs
  media: staging/intel-ipu3: abi: Add register definitions and enum
  ...
2018-12-25 13:11:30 -08:00
Sakari Ailus
5e44465ccf media: staging/ipu3-imgu: Address documentation comments
Address comments on the documentation after Yong's original patch.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-17 15:03:52 -05:00
Yong Zhi
d0276a2b83 media: v4l: Add Intel IPU3 meta buffer formats
Add IPU3-specific meta formats for processing parameters and
3A statistics.

  V4L2_META_FMT_IPU3_PARAMS
  V4L2_META_FMT_IPU3_STAT_3A

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+samsung@kernel.org>
2018-12-17 15:03:52 -05:00
Mauro Carvalho Chehab
e7121ab405 media: docs: fix some GPL licensing ambiguity at the text
Those files are meant to be dual GPL 2.0 and GFDL without
implicit sections. However, by a wrong cut-and-paste, I ended
by applying a GPL 2+ license text to it, while still using the
GPL 2.0 SPDX tag, with would cause an ambiguity about the
licensing model.

Solve this by explicitly mentioning that the dual licensing
is between GPL 2.0 and GFDL and correcting the text.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-17 10:57:20 -05:00
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
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