Commit Graph

1995 Commits

Author SHA1 Message Date
Mauro Carvalho Chehab 1980bfa67f media: dvbdev: fix building on ia64
Not sure why, but, on ia64, with Linaro's gcc 7.3 compiler,
using #ifdef (CONFIG_I2C) is not OK.

So, replace it by IS_ENABLED(CONFIG_I2C), in order to fix the
builds there.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-07 04:11:50 -05:00
Mauro Carvalho Chehab 8f569c0b4e media: dvb-core: add helper functions for I2C binding
The dvb_attach()/dvb_detach() methods are ugly hacks designed
to keep using the I2C low-level API. The proper way is to
do I2C bus bindings instead.

Several modules were already converted to use it. Yet,
it is painful to use it, as lots of code need to be
duplicated.

Make it easier by providing two new helper functions:
	- dvb_module_probe()
	- dvb_module_release()

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 05:00:31 -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
Jacopo Mondi 7b20f325a5 media: i2c: tw9910: Remove soc_camera dependencies
Remove soc_camera framework dependencies from tw9910 sensor driver.
- Handle clock and gpios
- Register async subdevice
- Remove soc_camera specific g/s_mbus_config operations
- Add kernel doc to driver interface header file
- Adjust build system

This commit does not remove the original soc_camera based driver as long
as other platforms depends on soc_camera-based CEU driver.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26 09:14:53 -05:00
Jacopo Mondi 762c28121d media: i2c: ov772x: Remove soc_camera dependencies
Remove soc_camera framework dependencies from ov772x sensor driver.
- Handle clock and gpios
- Register async subdevice
- Remove soc_camera specific g/s_mbus_config operations
- Change image format colorspace from JPEG to SRGB as the two use the
  same colorspace information but JPEG makes assumptions on color
  components quantization that do not apply to the sensor
- Remove sizes crop from get_selection as driver can't scale
- Add kernel doc to driver interface header file
- Adjust build system

This commit does not remove the original soc_camera based driver as long
as other platforms depends on soc_camera-based CEU driver.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26 09:11:16 -05:00
Jacopo Mondi 20b5605240 media: include: media: Add Renesas CEU driver interface
Add renesas-ceu header file.

Do not remove the existing sh_mobile_ceu.h one as long as the original
driver does not go away.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26 08:59:41 -05:00
Alexandre Courbot 14351d4483 media: v4l2_fh.h: add missing kconfig.h include
v4l2_fh.h uses the IS_ENABLED() macro and thus should include kconfig.h.

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 08:05:10 -05:00
Hans Verkuil 97eee23a25 media: v4l2-ctrls.h: fix wrong copy-and-paste comment
The __v4l2_ctrl_modify_range is the unlocked variant, so the comment about
taking a lock is obviously wrong.

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@s-opensource.com>
2018-02-26 08:03:26 -05:00
Niklas Söderlund 7b73ce9d4c media: v4l2-dev.h: fix symbol collision in media_entity_to_video_device()
A recent change to the media_entity_to_video_device() macro breaks some
use-cases for the macro due to a symbol collision. Before the change
this worked:

    vdev = media_entity_to_video_device(link->sink->entity);

While after the change it results in a compiler error "error: 'struct
video_device' has no member named 'link'; did you mean 'lock'?". While
the following still works after the change.

    struct media_entity *entity = link->sink->entity;
    vdev = media_entity_to_video_device(entity);

Fix the collision by renaming the macro argument to '__entity'.

Fixes: 69b925c5fc ("media: v4l2-dev.h: add kernel-doc to two macros")

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
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 07:58:18 -05:00
Mauro Carvalho Chehab fdbeb96258 media: dvb: update buffer mmaped flags and frame counter
Now that we have support for a buffer counter and for
error flags, update them at DMX_DQBUF.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-23 11:44:08 -05:00
Mauro Carvalho Chehab 0b23498aac media: dmxdev: Fix the logic that enables DMA mmap support
Some conditions required for DVB mmap support to work are reversed.
Also, the logic is not too clear.

So, improve the logic, making it easier to be handled.

PS.: I'm pretty sure that I fixed it while testing, but, somehow,
the change got lost.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-23 05:27:10 -05:00
Arnd Bergmann ec5b100462 media: dvb: fix DVB_MMAP symbol name
CONFIG_DVB_MMAP was misspelled either as CONFIG_DVB_MMSP
or DVB_MMAP, so it had no effect at all. This fixes that,
to make it possible to build it again.

Fixes: 4021053ed5 ("media: dvb-core: make DVB mmap API optional")

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-23 05:20:01 -05:00
Tim Harvey 9ac0038db9 media: i2c: Add TDA1997x HDMI receiver driver
Add support for the TDA1997x HDMI receivers.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: fix type 'testin' -> 'testing']
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-22 12:53:32 -05:00
Hans Verkuil 357a856a6c media: v4l2-dv-timings: add v4l2_hdmi_colorimetry()
Add the v4l2_hdmi_colorimetry() function so we have a single function
that determines the colorspace, YCbCr encoding, quantization range and
transfer function from the InfoFrame data.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-22 12:41:09 -05:00
Hans Verkuil 8180b4f4f5 media: v4l2-subdev.h: remove obsolete g/s_parm
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-22 12:31:59 -05:00
Hans Verkuil 672de9a79c media: v4l2-common: create v4l2_g/s_parm_cap helpers
Create helpers to handle VIDIOC_G/S_PARM by querying the
g/s_frame_interval v4l2_subdev ops.

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 12:25:33 -05:00
Al Viro 37b3c6a640 [poll] annotate SAA6588_CMD_POLL users
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-02-15 13:11:48 -05:00
Sean Young 1f17f684d9 media: rc: remove IR_dprintk() from rc-core
Use dev_dbg() rather than custom debug function.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-14 14:15:46 -05:00
Hans Verkuil ab15d248cc media: include/(uapi/)media: add SPDX license info
Replace the old license information with the corresponding SPDX
license for those headers that I authored.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-14 13:23:51 -05:00
Linus Torvalds a9a08845e9 vfs: do bulk POLL* -> EPOLL* replacement
This is the mindless scripted replacement of kernel use of POLL*
variables as described by Al, done by this script:

    for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do
        L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'`
        for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done
    done

with de-mangling cleanups yet to come.

NOTE! On almost all architectures, the EPOLL* constants have the same
values as the POLL* constants do.  But they keyword here is "almost".
For various bad reasons they aren't the same, and epoll() doesn't
actually work quite correctly in some cases due to this on Sparc et al.

The next patch from Al will sort out the final differences, and we
should be all done.

Scripted-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-11 14:34:03 -08:00
Stephen Rothwell b46dc8ae17 media: videobuf2: fix up for "media: annotate ->poll() instances"
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-06 14:24:51 -08:00
Linus Torvalds 68c5735eaa media updates for v4.16-rc1
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Merge tag 'media/v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - videobuf2 was moved to a media/common dir, as it is now used by the
   DVB subsystem too

 - Digital TV core memory mapped support interface

 - new sensor driver: ov7740

 - several improvements at ddbridge driver

 - new V4L2 driver: IPU3 CIO2 CSI-2 receiver unit, found on some Intel
   SoCs

 - new tuner driver: tda18250

 - finally got rid of all LIRC staging drivers

 - as we don't have old lirc drivers anymore, restruct the lirc device
   code

 - add support for UVC metadata

 - add a new staging driver for NVIDIA Tegra Video Decoder Engine

 - DVB kAPI headers moved to include/media

 - synchronize the kAPI and uAPI for the DVB subsystem, removing the gap
   for non-legacy APIs

 - reduce the kAPI gap for V4L2

 - lots of other driver enhancements, cleanups, etc.

* tag 'media/v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (407 commits)
  media: v4l2-compat-ioctl32.c: make ctrl_is_pointer work for subdevs
  media: v4l2-compat-ioctl32.c: refactor compat ioctl32 logic
  media: v4l2-compat-ioctl32.c: don't copy back the result for certain errors
  media: v4l2-compat-ioctl32.c: drop pr_info for unknown buffer type
  media: v4l2-compat-ioctl32.c: copy clip list in put_v4l2_window32
  media: v4l2-compat-ioctl32.c: fix ctrl_is_pointer
  media: v4l2-compat-ioctl32.c: copy m.userptr in put_v4l2_plane32
  media: v4l2-compat-ioctl32.c: avoid sizeof(type)
  media: v4l2-compat-ioctl32.c: move 'helper' functions to __get/put_v4l2_format32
  media: v4l2-compat-ioctl32.c: fix the indentation
  media: v4l2-compat-ioctl32.c: add missing VIDIOC_PREPARE_BUF
  media: v4l2-ioctl.c: don't copy back the result for -ENOTTY
  media: v4l2-ioctl.c: use check_fmt for enum/g/s/try_fmt
  media: vivid: fix module load error when enabling fb and no_error_inj=1
  media: dvb_demux: improve debug messages
  media: dvb_demux: Better handle discontinuity errors
  media: cxusb, dib0700: ignore XC2028_I2C_FLUSH
  media: ts2020: avoid integer overflows on 32 bit machines
  media: i2c: ov7740: use gpio/consumer.h instead of gpio.h
  media: entity: Add a nop variant of media_entity_cleanup
  ...
2018-02-06 11:27:48 -08:00
Sakari Ailus 3580112b6d media: entity: Add a nop variant of media_entity_cleanup
Add nop variant of media_entity_cleanup. This allows calling
media_entity_cleanup whether or not Media controller is enabled,
simplifying driver code.

Also drop #ifdefs on a few drivers around media_entity_cleanup().

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 08:12:01 -05:00
Mauro Carvalho Chehab 6e6a8b5a38 media: replace all <spaces><tab> occurrences
There are a lot of places where sequences of space/tabs are
found. Get rid of all spaces before tabs.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-04 13:15:05 -05:00
Mauro Carvalho Chehab 4a3fad709b media: fix usage of whitespaces and on indentation
On several places, whitespaces are being used for indentation,
or even at the end of the line.

Fix them.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-04 13:12:01 -05:00
Mauro Carvalho Chehab 9f577d6db5 media: dvb kAPI docs: document dvb_vb2.h
Document the data structures and functions inside this kAPI header.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-29 08:31:25 -05:00
Mauro Carvalho Chehab 15128beef1 media: dvb_vb2: get rid of DVB_BUF_TYPE_OUTPUT
This is currently unused. So, get rid of it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-29 07:54:12 -05:00
Mauro Carvalho Chehab eb0f73ba12 media: v4l2-async: better describe match union at async match struct
Now that kernel-doc handles nested unions, better document the
match union at struct v4l2_async_subdev.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-29 07:15:14 -05:00
Mauro Carvalho Chehab 4e48afecd5 media: v4l2-async: simplify v4l2_async_subdev structure
The V4L2_ASYNC_MATCH_FWNODE match criteria requires just one
struct to be filled (struct fwnode_handle). The V4L2_ASYNC_MATCH_DEVNAME
match criteria requires just a device name.

So, it doesn't make sense to enclose those into structs,
as the criteria can go directly into the union.

That makes easier to document it, as we don't need to document
weird senseless structs.

At drivers, this makes even clearer about the match criteria.

Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Benoit Parrot <bparrot@ti.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Hyun Kwon <hyun.kwon@xilinx.com>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-29 07:14:28 -05:00
Mauro Carvalho Chehab d651ff916e media: v4l2-device.h: document helper macros
There are several macros that aren't documented using kernel-docs
markups.

Document them.

While here, add cross-references to structs on this file.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-29 07:11:22 -05:00
Sakari Ailus f6e8fe94da media: i2c: as3645a: Remove driver
Remove the V4L2 AS3645A sub-device driver in favour of the LED flash class
driver for the same hardware, drivers/leds/leds-as3645a.c. The latter uses
the V4L2 flash LED class framework to provide V4L2 sub-device interface.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-29 06:31:31 -05:00
Mauro Carvalho Chehab fada193559 media: move dvb kAPI headers to include/media
Except for DVB, all media kAPI headers are at include/media.

Move the headers to it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-28 13:16:01 -05:00
Simon Shields 3090a1915e media: exynos4-is: Check pipe is valid before calling subdev
If the subdev is not yet present (probably because the subdev
module has not yet been loaded), the pipe will be NULL. Make sure
that this is not the case before attempting to call the op.

Signed-off-by: Simon Shields <simon@lineageos.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 15:12:12 -05:00
Mauro Carvalho Chehab 991232a929 media: vb2-core: fix descriptions for VB2-only functions
When we split VB2 into an independent streaming module and
a V4L2 one, some vb2-core functions started to have a wrong
description: they're meant to be used only by the API-specific
parts of VB2, like vb2-v4l2, as the functions that V4L2 drivers
should use are all under videobuf2-v4l2.h.

Correct their descriptions.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 14:37:02 -05:00
Mauro Carvalho Chehab bb92895a1c media: v4l2-subdev: convert frame description to enum
As kernel-doc doesn't support documenting #define values,
and using enum makes easier to identify where the values
are used, convert V4L2_MBUS_FRAME_DESC_FL_* to enum, and
use BIT() macro.

While here, fix the description at v4l2_mbus_frame_desc_entry,
in order to match what's described for
V4L2_MBUS_FRAME_DESC_FL_LEN_MAX.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 14:15:48 -05:00
Mauro Carvalho Chehab 4eb2f55728 media: v4l2-subdev: better document IO pin configuration flags
Convert V4L2_SUBDEV_IO_PIN_* to enums, use BIT() and document
via kernel-doc.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 14:14:29 -05:00
Mauro Carvalho Chehab 0722ef82e5 media: v4l2-subdev: fix a typo
ownner -> owner

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 12:38:24 -05:00
Mauro Carvalho Chehab 43feabdbcc media: v4l2-tpg: use __u16 instead of int for struct tpg_rbg_color16
Despite the struct says "color16", it was actually using 32 bits
for each color. Fix it.

Suggested-by: Hans Verkuil <hverkuil@xs4all.nl>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 12:29:40 -05:00
Mauro Carvalho Chehab b29fd5639c media: v4l2-tpg.h: rename color structs
The color structs right now are just "color" and "color16".
That may lead into conflicts, and don't define precisely what
they meant. As those are used by two drivers (vivid and vimc),
this is even on a somewhat public header!

So rename them to:
	color ->  tpg_rbg_color8
	color16 ->  tpg_rbg_color16

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 12:29:05 -05:00
Mauro Carvalho Chehab 1beb623bda media: v4l2-tpg*.h: move headers to include/media/tpg and merge them
The v4l2-tpg*.h headers are meant to be used only internally by
vivid and vimc. There's no sense keeping them together with the
V4L2 kAPI headers. Also, one header includes the other as they're
meant to be used together. So, merge them.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 12:28:35 -05:00
Mauro Carvalho Chehab 9fbe71b4d8 media: vb2: add cross references at memops and v4l2 kernel-doc markups
Add cross-references where needed and add periods at the end of
each kernel-doc paragraph, in order to make it coherent with other
VB2 descriptions.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 12:27:41 -05:00
Mauro Carvalho Chehab 8dcde47ff8 media: vb2-core: document remaining functions
There are several VB2 core functions that aren't documented.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 12:21:45 -05:00
Mauro Carvalho Chehab 2b14132455 media: vb2-core: Improve kernel-doc markups
There are several issues on the current markups:
- lack of cross-references;
- wrong cross-references;
- lack of a period of the end of several phrases;
- Some descriptions can be enhanced.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 12:20:52 -05:00
Mauro Carvalho Chehab 37bc2d8741 media: vb2-core: use bitops for bits
Use the existing macros to identify vb2_io_modes bits.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 12:17:33 -05:00
Mauro Carvalho Chehab 07bf9355ca media: v4l2-subdev: fix description of tuner.s_radio ops
The description there is completely broken and it mentions
an ioctl that doesn't exist.

Fix it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 11:57:15 -05:00
Mauro Carvalho Chehab 3fb558f6c3 media: v4l2-subdev: create cross-references for ioctls
When generating Sphinx output, create cross-references for the
callbacks for each ioctl.

While here, fix a few wrong names for ioctls.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 11:56:36 -05:00
Mauro Carvalho Chehab 63b31ffd1c media: v4l2-dev: document video_device flags
Convert #defines to enums and add kernel-doc markups for V4L2
video_device flags.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 11:55:02 -05:00
Mauro Carvalho Chehab 468fde0b79 media: v4l2-dev: document VFL_DIR_* direction defines
The V4L_DIR_* direction flags document the direction for a
V4L2 device node. Convert them to enum and document.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 11:54:22 -05:00
Mauro Carvalho Chehab 1ac051631a media: get rid of i2c-addr.h
In the past, the same I2C address were used on multiple places.
After I2C rebinding changes, this is no longer needed. So, we
can just get rid of this header, placing the I2C address where
they belong, e. g. either at bttv driver or at tvtuner.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 11:52:24 -05:00
Mauro Carvalho Chehab 39654531be media: i2c-addr.h: get rid of now unused defines
Some of the previously used I2C addresses there aren't used
anymore. So, get rid of them.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 11:50:17 -05:00
Mauro Carvalho Chehab 4839c58f03 media: v4l2-dev: convert VFL_TYPE_* into an enum
Using enums makes easier to document, as it can use kernel-doc
markups. It also allows cross-referencing, with increases the
kAPI readability.

Please notice that now cx88_querycap() has to have a default for
the VFL type, as there are more types than supported by the driver.

Acked-By: Mike Isely <isely@pobox.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 11:49:40 -05:00
Mauro Carvalho Chehab 2120961f0c media: v4l2-mediabus: use BIT() macro for flags
Instead of using (1 << n) for bits, use the BIT() macro,
as it makes a difference from documentation point of view.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 10:41:45 -05:00
Mauro Carvalho Chehab 716b87647f media: v4l2-flash-led-class.h: add kernel-doc to two helper funcs
There are two helper functions at v4l2-flash-led-class.h
that aren't documented.

Document them.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 10:40:41 -05:00
Mauro Carvalho Chehab 69b925c5fc media: v4l2-dev.h: add kernel-doc to two macros
There are two macros at v4l2-dev.h that aren't documented.

Document them, for completeness.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 10:38:39 -05:00
Mauro Carvalho Chehab 66f1e6078e media: v4l2-event.rst: improve events description
Both v4l2-event.rst and v4l2-event.h have an overview of
events, but there are some inconsistencies there:

- at v4l2-event, the event's ring buffer is called kevent. Its
  name is, instead, v4l2_kevent;

- Some things are mentioned on both places (with different words),
  others are either on one of the files.

In order to cleanup this mess, put everything at v4l2-event.rst
and improve it to be a little more coherent and to have cross
references.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 10:35:46 -05:00
Mauro Carvalho Chehab bd945e4799 media: media-entity.h: add kernel-doc markups for nested structs
Now that nested structs are parsed by kernel-doc, add markups
to them.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 10:22:40 -05:00
Mauro Carvalho Chehab 60e7926b93 media: videobuf2-core: improve kernel-doc markups
Now that nested structs are supported, change the
documentation to use it. While here, add cross-references
where pertinent and use monotonic fonts where pertinent,
using the right markup tags.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 10:21:51 -05:00
Mauro Carvalho Chehab 20139f1857 media: v4l2-ctrls: document nested members of structs
There are a few nested members at v4l2-ctrls.h. Now that
kernel-doc supports, document them.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 10:21:16 -05:00
Mauro Carvalho Chehab d63a9ef241 media: v4l2-fwnode.h: better describe bus union at fwnode endpoint struct
Better document the bus union at struct v4l2_fwnode_endpoint.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 10:18:15 -05:00
Mauro Carvalho Chehab f4ab70e3d2 media: rc-core.h: minor adjustments at rc_driver_type doc
The description of this enum doesn't match what it
actually represents. Adjust it.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 10:16:04 -05:00
Mauro Carvalho Chehab 4ffbf14369 media: v4l2-dv-timings.h: convert comment into kernel-doc markup
The can_reduce_fps() is already documented, but it is not
using the kernel-doc markup. Convert it, in order to generate
documentation from it.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 10:00:48 -05:00
Mauro Carvalho Chehab 76a59fe770 media: v4l2-common.h: document helper functions
There are several helper functions that aren't documented.

Document them.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 09:25:26 -05:00
Mauro Carvalho Chehab 0545629e50 media: v4l2-common: get rid of struct v4l2_discrete_probe
This struct is there just two store two arguments of
v4l2_find_nearest_format(). The other two arguments are passed
as parameter.

IMHO, there isn't much sense on doing that, and that will just
add one more struct to document ;)

So, let's get rid of the struct, passing the parameters directly.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 09:14:57 -05:00
Mauro Carvalho Chehab 01154ef582 media: v4l2-common: get rid of v4l2_routing dead struct
This struct is not used anymore. Get rid of it and update
the documentation about what should still be converted.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 09:11:25 -05:00
Mauro Carvalho Chehab 8030e774e2 media: tuner-types: add kernel-doc markups for struct tunertype
This struct is lacking documentation. Add it.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 09:06:40 -05:00
Sean Young 57c642cb45 media: cec: move cec autorepeat handling to rc-core
CEC autorepeat is different than other protocols. Autorepeat is triggered
by the first repeated user control pressed CEC message, rather than a
fixed REP_DELAY.

This change also does away with the KEY_UP event directly after the first
KEY_DOWN event, which was used to stop autorepeat from starting.

See commit a9a249a2c9 ("media: cec: fix remote control passthrough")
for the original change.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 10:35:30 -05:00
Sean Young 7e45d660e4 media: lirc: allow lirc device to be opened more than once
This makes it possible for lircd to read from a lirc chardev, and not
keep it busy.

Note that this changes the default for timeout reports to on. lircd
already enables timeout reports when it opens a lirc device, leaving
them on until the next reboot.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 10:35:25 -05:00
Sean Young aefb5e3434 media: rc: include <uapi/linux/lirc.h> rather than <media/lirc.h>
This removes the need for include/media/lirc.h, which just includes
the uapi file.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 10:35:24 -05:00
Sean Young de142c3241 media: lirc: implement reading scancode
This implements LIRC_MODE_SCANCODE reading from the lirc device. The
scancode can be read from the input device too, but with this interface
you get the rc protocol, keycode, toggle and repeat status in addition
to just the scancode.

int main()
{
	int fd, mode, rc;
	fd = open("/dev/lirc0", O_RDWR);

	mode = LIRC_MODE_SCANCODE;
	if (ioctl(fd, LIRC_SET_REC_MODE, &mode)) {
		// kernel too old or lirc does not support transmit
	}
	struct lirc_scancode scancode;
	while (read(fd, &scancode, sizeof(scancode)) == sizeof(scancode)) {
		printf("protocol:%d scancode:0x%x toggle:%d repeat:%d\n",
			scancode.rc_proto, scancode.scancode,
			!!(scancode.flags & LIRC_SCANCODE_FLAG_TOGGLE),
			!!(scancode.flags & LIRC_SCANCODE_FLAG_REPEAT));
	}
	close(fd);
}

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 a6ddd4fecb media: lirc: remove last remnants of lirc kapi
rc-core has replaced the lirc kapi many years ago, and now with the last
driver ported to rc-core, we can finally remove it.

Note this has no effect on userspace.

All future IR drivers should use the rc-core api.

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 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 111429fb73 media: lirc: create rc-core open and close lirc functions
Replace the generic kernel lirc api with ones which use rc-core, further
reducing the lirc_dev members.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 10:35:19 -05:00
Sean Young 7790e81f7e media: lirc: move lirc_dev->attached to rc_dev->registered
This is done to further remove the lirc kernel api. Ensure that every
fops checks for this.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 10:35:18 -05:00
Sean Young 71695aff9f media: lirc: use kfifo rather than lirc_buffer for raw IR
Since the only mode lirc devices can handle is raw IR, handle this
in a plain kfifo.

Remove lirc_buffer since this is no longer needed.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 10:35:18 -05:00
Sean Young 95bc71e199 media: lirc: merge lirc_dev_fop_ioctl and ir_lirc_ioctl
Calculate lirc features when necessary, and add LIRC_{S,G}ET_REC_MODE
cases to ir_lirc_ioctl.

This makes lirc_dev_fop_ioctl() unnecessary since all cases are
already handled by ir_lirc_ioctl().

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 10:35:17 -05:00
Sean Young a60d64b15c media: lirc: lirc interface should not be a raw decoder
The lirc user interface exists as a raw decoder, which does not make
much sense for transmit-only devices.

In addition, we want to have lirc char devices for devices which do not
use raw IR, i.e. scancode only devices.

Note that rc-code, lirc_dev, ir-lirc-codec are now calling functions of
each other, so they've been merged into one module rc-core to avoid
circular dependencies.

Since ir-lirc-codec no longer exists as separate codec module, there is no
need for RC_DRIVER_IR_RAW_TX type drivers to call ir_raw_event_register().

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 10:35:16 -05:00
Sean Young cdfaa01c1c media: lirc: use the correct carrier for scancode transmit
If the lirc device supports it, set the carrier for the protocol.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 10:35:15 -05:00
Sean Young 9b6192589b media: lirc: implement scancode sending
This introduces a new lirc mode: scancode. Any device which can send raw IR
can now also send scancodes.

int main()
{
	int mode, fd = open("/dev/lirc0", O_RDWR);

        mode = LIRC_MODE_SCANCODE;
	if (ioctl(fd, LIRC_SET_SEND_MODE, &mode)) {
		// kernel too old or lirc does not support transmit
	}
	struct lirc_scancode scancode = {
		.scancode = 0x1e3d,
		.rc_proto = RC_PROTO_RC5,
	};
	write(fd, &scancode, sizeof(scancode));
	close(fd);
}

The other fields of lirc_scancode must be set to 0.

Note that toggle (rc5, rc6) and repeats (nec) are not implemented. Nor is
there a method for holding down a key for a period.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 10:35:15 -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
Sean Young acaa34bf06 media: rc: implement zilog transmitter
This code implements the transmitter which is currently implemented
in the staging lirc_zilog driver.

The new code does not need a signal database, iow. the
haup-ir-blaster.bin firmware file is no longer needed, and the driver
does not know anything about the keycodes in that file.

Instead, the new driver can send raw IR, but the hardware is limited
to few different lengths of pulse and spaces, so it is best to use
generated IR rather than recorded IR.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 09:58:20 -05:00
Sean Young afc7f24c01 media: rc: i2c: set parent of rc device and improve name
With the parent set for the rc device, the messages clearly state
that it is attached via i2c. The additional printk is unnecessary.

These are the old messages:

rc rc1: i2c IR (Hauppauge WinTV PVR-150 as /devices/virtual/rc/rc1
ir-kbd-i2c: i2c IR (Hauppauge WinTV PVR-150 detected at i2c-10/10-0071/ir0 [ivtv i2c driver #0]

Now we simply get:

rc rc1: Hauppauge WinTV PVR-150 as /devices/pci0000:00/0000:00:1e.0/0000:02:00.0/i2c-10/10-0071/rc/rc1

Note that we no longer copy the name. I've checked all call sites
to verfiy this is not a problem.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 09:58:19 -05:00
Hans Verkuil c8959a39fd media: cec: disable the hardware when unregistered
When the device is being unregistered disable the hardware, don't wait
until cec_delete_adapter is called as the hardware may have disappeared by
then. This would be the case for hotplugable devices.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reported-by: Bård Eirik Winther <bwinther@cisco.com>
Tested-by: Bård Eirik Winther <bwinther@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-08 11:11:25 -05:00
Hans Verkuil 48ea2e926b media: cec: add the adap_monitor_pin_enable op
Some devices can monitor the CEC pin using an interrupt, but you
only want to enable the interrupt if you actually switch to pin
monitoring mode.

So add a new op that is called when pin monitoring needs to be
switched on or off.

Also fix a small bug where the initial CEC pin event was sent
again when calling S_MODE twice with the same CEC_MODE_MONITOR_PIN
mode.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-08 11:10:00 -05:00
Al Viro c23e0cb81e media: annotate ->poll() instances
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-11-27 16:20:06 -05:00
Al Viro a3f8683bf7 ->poll() methods should return __poll_t
The most common place to find POLL... bitmaps: return values
of ->poll() and its subsystem counterparts.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-11-27 16:19:52 -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
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00
Mauro Carvalho Chehab e2cec86528 media: v4l2-fwnode: use a typedef for a function callback
That allows having a kernel-doc markup for the function
prototype. It also prevents the need of describing the
return values twice.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
2017-11-01 12:25:28 -04:00
Sakari Ailus aef69d5475 media: v4l: fwnode: Add a convenience function for registering sensors
Add a convenience function for parsing firmware for information on related
devices using v4l2_async_notifier_parse_fwnode_sensor_common() registering
the notifier and finally the async sub-device itself.

This should be useful for sensor drivers that do not have device specific
requirements related to firmware information parsing or the async
framework.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-31 14:03:15 -04:00
Sakari Ailus 7a9ec808ad media: v4l: fwnode: Add convenience function for parsing common external refs
Add v4l2_fwnode_parse_reference_sensor_common for parsing common
sensor properties that refer to adjacent devices such as flash or lens
driver chips.

As this is an association only, there's little a regular driver needs to
know about these devices as such.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-31 14:02:37 -04:00
Sakari Ailus baf249e40f media: v4l: fwnode: Move KernelDoc documentation to the header
In V4L2 the practice is to have the KernelDoc documentation in the header
and not in .c source code files. This consequently makes the V4L2 fwnode
function documentation part of the Media documentation build.

Also correct the link related function and argument naming in
documentation and add an asterisk to v4l2_fwnode_endpoint_free()
documentation to make it proper KernelDoc documentation.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-31 13:59:52 -04:00
Sakari Ailus 2cab00bb07 media: v4l: async: Allow binding notifiers to sub-devices
Registering a notifier has required the knowledge of struct v4l2_device
for the reason that sub-devices generally are registered to the
v4l2_device (as well as the media device, also available through
v4l2_device).

This information is not available for sub-device drivers at probe time.

What this patch does is that it allows registering notifiers without
having v4l2_device around. Instead the sub-device pointer is stored in the
notifier. Once the sub-device of the driver that registered the notifier
is registered, the notifier will gain the knowledge of the v4l2_device,
and the binding of async sub-devices from the sub-device driver's notifier
may proceed.

The complete callback of the root notifier will be called only when the
v4l2_device is available and no notifier has pending sub-devices to bind.
No complete callbacks are supported for sub-device notifiers.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-31 13:56:24 -04:00
Laurent Pinchart b6ee3f0dcf media: v4l: async: Move async subdev notifier operations to a separate structure
The async subdev notifier .bound(), .unbind() and .complete() operations
are function pointers stored directly in the v4l2_async_subdev
structure. As the structure isn't immutable, this creates a potential
security risk as the function pointers are mutable.

To fix this, move the function pointers to a new
v4l2_async_subdev_operations structure that can be made const in
drivers.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-31 13:51:45 -04:00
Sakari Ailus 9ca4653121 media: v4l: fwnode: Support generic parsing of graph endpoints in a device
Add two functions for parsing devices graph endpoints:
v4l2_async_notifier_parse_fwnode_endpoints and
v4l2_async_notifier_parse_fwnode_endpoints_by_port. The former iterates
over all endpoints whereas the latter only iterates over the endpoints in
a given port.

The former is mostly useful for existing drivers that currently implement
the iteration over all the endpoints themselves whereas the latter is
especially intended for devices with both sinks and sources: async
sub-devices for external devices connected to the device's sources will
have already been set up, or the external sub-devices are part of the
master device.

Depends-on: ("device property: preserve usecount for node passed to of_fwnode_graph_get_port_parent()")

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-31 13:47:21 -04:00
Kees Cook 12a83612ed media: saa7146: Convert timers to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-31 06:40:08 -04:00
Kees Cook 3e3149173f media: media/saa7146: Convert timers to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly. This requires adding a pointer to
hold the timer's target file, as there won't be a way to pass this in the
future.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-31 06:38:53 -04:00
Oleh Kravchenko ad596b68ad media: rc: Add Astrometa T2hybrid keymap module
Add the keymap module for Astrometa T2hybrid remote control commands.

Signed-off-by: Oleh Kravchenko <oleg@kaa.org.ua>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-31 06:35:02 -04:00
Younian Wang c62cf662a2 media: rc/keymaps: add support for RC of hisilicon poplar board
This is a NEC protocol type remote controller distributed with
96boards poplar@tocoding board.

Signed-off-by: Younian Wang <wangyounian@hisilicon.com>
Signed-off-by: Jiancheng Xue <xuejiancheng@hisilicon.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2017-10-27 17:41:00 +02:00
Younian Wang ce5aa6d205 media: rc/keymaps: add support for RC of hisilicon TV demo boards
This is a NEC protocol type remote controller distributed with
hisilicon TV demo boards.

Signed-off-by: Younian Wang <wangyounian@hisilicon.com>
Signed-off-by: Jiancheng Xue <xuejiancheng@hisilicon.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2017-10-27 17:39:38 +02:00
Hans Verkuil 5bf24e08b6 media: cec-pin.h: move non-kAPI parts into cec-pin-priv.h
The kAPI cec-pin.h header also defined data structures that did
not belong here but were private to the CEC core code.

Split that part off into a cec-pin-priv.h header.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2017-10-27 14:02:19 +02:00