Граф коммитов

36 Коммитов

Автор SHA1 Сообщение Дата
Sakari Ailus ff3cc65cad media: v4l: async, fwnode: Improve module organisation
The V4L2 async framework is generally used with the V4L2 fwnode, which
also depends on the former. There are a few exceptions but they are
relatively few.

At the same time there is a vast number of systems that need videodev
module, but have no use for v4l2-async that's now part of videodev.

In order to improve, split the v4l2-async into its own module. Selecting
V4L2_FWNODE also selects V4L2_ASYNC.

This also moves the initialisation of the debufs entries for async subdevs
to loading of the v4l2-async module. The directory is named as
"v4l2-async".

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-02 11:46:27 +02:00
Boris Brezillon 624922a273 media: v4l2-core: Add helpers to build the H264 P/B0/B1 reflists
Building those list is a standard procedure described in section
'8.2.4 Decoding process for reference picture lists construction' of
the H264 specification.

We already have 2 drivers needing the same logic (hantro and rkvdec) and
I suspect we will soon have more.

Let's provide generic helpers to create those lists.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-21 13:46:40 +02:00
Philipp Zabel 50733b5b91 media: add v4l2 JPEG helpers
Add helpers for JPEG header parsing. They allow both scanning for marker
segment positions and later parsing the segments individually, as
required by s5p-jpeg, as well as parsing all headers in one go, as
required by coda-vpu. The frame header is always parsed, as basically
all decoders are interested in width, height, and number of components.
For convenience, the JPEG chroma subsampling factors are decoded into a
v4l2_jpeg_chroma_subsampling enum.

Only baseline and extended sequential DCT encoded JPEGs with 8-bit or
12-bit precision with up to four components are supported.

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+huawei@kernel.org>
2020-04-14 11:47:47 +02:00
Mauro Carvalho Chehab 8164ab8721 media: Kconfig: move V4L2 subdev API to v4l2-core/Kconfig
This option is part of V4L2 API extra functionality set.
Move it to be at the v4l2-core/Kconfig, where it belongs,
cleaning the main Kconfig file.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14 10:29:05 +02:00
Mauro Carvalho Chehab f11175daff media: pci: move VIDEO_PCI_SKELETON to a different Kconfig
The V4L2 PCI skeleton is not part of the V4L2 core. Move it
to appear together with the other PCI drivers, at the end,
as this is something that normal users don't even need to
bother.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14 10:29:04 +02:00
Ezequiel Garcia 02283b98b1 media: v4l2-core: move i2c helpers out of v4l2-common.c
Separate the i2c helpers to v4l2-i2c.c, in order to get rid
of the ifdefery. No functional changes intended, this is
just a cosmetic change to organize the code better.

Given I2C is a tristate symbol, a hidden boolean symbol
is introduced, to make the conditional build easier.

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>
2019-08-26 10:50:48 -03:00
Mauro Carvalho Chehab 1e0566fd4a Linux 5.2-rc2
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Merge tag 'v5.2-rc2' into patchwork

Merge back from upstream into media tree, as there are some
patches merged upstream that has pontential of causing
conflicts (one actually rised a conflict already).

Linux 5.2-rc2

* tag 'v5.2-rc2': (377 commits)
  Linux 5.2-rc2
  random: fix soft lockup when trying to read from an uninitialized blocking pool
  tracing: Silence GCC 9 array bounds warning
  ext4: fix dcache lookup of !casefolded directories
  locking/lock_events: Use this_cpu_add() when necessary
  KVM: x86: fix return value for reserved EFER
  tools/kvm_stat: fix fields filter for child events
  KVM: selftests: Wrap vcpu_nested_state_get/set functions with x86 guard
  kvm: selftests: aarch64: compile with warnings on
  kvm: selftests: aarch64: fix default vm mode
  kvm: selftests: aarch64: dirty_log_test: fix unaligned memslot size
  KVM: s390: fix memory slot handling for KVM_SET_USER_MEMORY_REGION
  KVM: x86/pmu: do not mask the value that is written to fixed PMUs
  KVM: x86/pmu: mask the result of rdpmc according to the width of the counters
  x86/kvm/pmu: Set AMD's virt PMU version to 1
  KVM: x86: do not spam dmesg with VMCS/VMCB dumps
  kvm: Check irqchip mode before assign irqfd
  kvm: svm/avic: fix off-by-one in checking host APIC ID
  KVM: selftests: do not blindly clobber registers in guest asm
  KVM: selftests: Remove duplicated TEST_ASSERT in hyperv_cpuid.c
  ...
2019-05-28 11:21:51 -04:00
Bartlomiej Zolnierkiewicz 2f39cce963 media: remove redundant 'default n' from Kconfig-s
'default n' is the default value for any bool or tristate Kconfig
setting so there is no need to write it explicitly.

Also since commit f467c5640c ("kconfig: only write '# CONFIG_FOO
is not set' for visible symbols") the Kconfig behavior is the same
regardless of 'default n' being present or not:

    ...
    One side effect of (and the main motivation for) this change is making
    the following two definitions behave exactly the same:

        config FOO
                bool

        config FOO
                bool
                default n

    With this change, neither of these will generate a
    '# CONFIG_FOO is not set' line (assuming FOO isn't selected/implied).
    That might make it clearer to people that a bare 'default n' is
    redundant.
    ...

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-24 08:36:45 -04:00
Thomas Gleixner ec8f24b7fa treewide: Add SPDX license identifier - Makefile/Kconfig
Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 10:50:46 +02:00
Mauro Carvalho Chehab b60a5b8dcf media: Kconfig files: use the right help coding style
Checkpatch wants to use 'help' instead of '---help---':

	WARNING: prefer 'help' over '---help---' for new help texts

Let's change it globally at the media subsystem, as otherwise people
would keep using the old way.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-20 06:47:51 -04:00
Michael Tretter ba08e61a79 media: v4l2-pci-skeleton: depend on CONFIG_SAMPLES
Commit 0185f85017 ("[media] samples: v4l: from Documentation to
samples directory") moved the v4l2-pci-skeleton driver to the samples
directory. The samples are only be built, if CONFIG_SAMPLES is enabled.

Therefore, VIDEO_PCI_SKELETON is not enough to build the
v4l2-pci-skeleton driver, but SAMPLES needs to be enabled, too. Let
VIDEO_PCI_SKELETON depend on SAMPLES.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-03 14:42:22 -05:00
Geert Uytterhoeven 4cff79e933 media: Remove depends on HAS_DMA in case of platform dependency
Remove dependencies on HAS_DMA where a Kconfig symbol depends on another
symbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST".
In most cases this other symbol is an architecture or platform specific
symbol, or PCI.

Generic symbols and drivers without platform dependencies keep their
dependencies on HAS_DMA, to prevent compiling subsystems or drivers that
cannot work anyway.

This simplifies the dependencies, and allows to improve compile-testing.

Note:
  - The various VIDEOBUF*DMA* symbols had to loose their dependencies on
    HAS_DMA, as they are selected by several individual drivers.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-28 16:17:08 -04:00
Mauro Carvalho Chehab adafae6229 media: v4l2-core: get rid of videobuf-dvb
Videobuf has been replaced by videobuf2. Now, no drivers use
the videobuf-dvb helper module anymore. So, get rid of it.

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+samsung@kernel.org>
2018-05-04 10:57:31 -04:00
Sakari Ailus 80dfd71c5a media: videobuf2: Add VIDEOBUF2_V4L2 Kconfig option for VB2 V4L2 part
Videobuf2 is now separate from V4L2 and can be now built without it, at
least in principle --- enabling videobuf2 in kernel configuration attempts
to compile videobuf2-v4l2.c but that will fail if CONFIG_VIDEO_V4L2 isn't
enabled.

Solve this by adding a separate Kconfig option for videobuf2-v4l2 and make
it a separate module as well. This means that drivers now need to choose
both the appropriate videobuf2 memory type
(VIDEOBUF2_{VMALLOC,DMA_CONTIG,DMA_SG}) and VIDEOBUF2_V4L2 if they need
both.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-23 05:12:55 -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 03fbdb2fc2 media: move videobuf2 to drivers/media/common
Now that VB2 is used by both V4L2 and DVB core, move it to
the common part of the subsystem.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-28 11:17:29 -05:00
Sakari Ailus ca50c197bd [media] v4l: fwnode: Support generic fwnode for parsing standardised properties
The fwnode_handle is a more generic way than OF device_node to describe
firmware nodes. Instead of the OF API, use more generic fwnode API to
obtain the same information.

As the V4L2 fwnode support will be required by a small minority of e.g.
ACPI based systems (the same might actually go for OF), make this a module
instead of embedding it in the videodev module.

The origins of the V4L2 fwnode framework is in the V4L2 OF framework.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Hans Verkuil <hans.verkuil@cisco.com>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-06 09:25:16 -03:00
Hans Verkuil 652430763f [media] v4l2-dv-timings: add helpers for vic and pixelaspect ratio
Add a helper to find timings based on the CEA-861 VIC code. Also,
add a helper that returns the pixel aspect ratio based on the
v4l2_dv_timings struct.

[mchehab@s-opensource.com: fix coding style]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-16 15:20:03 -02:00
Shuah Khan 1848929251 samples: move blackfin gptimers-example from Documentation
Move blackfin gptimers-example to samples and remove it from Documentation
Makefile. Update samples Kconfig and Makefile to build gptimers-example.

blackfin is the last CONFIG_BUILD_DOCSRC target in Documentation/Makefile.
Hence this patch also includes changes to remove CONFIG_BUILD_DOCSRC from
Makefile and lib/Kconfig.debug and updates VIDEO_PCI_SKELETON dependency
on BUILD_DOCSRC.

Documentation/Makefile is not deleted to avoid braking make htmldocs and
make distclean.

Acked-by: Michal Marek <mmarek@suse.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reported-by: Valentin Rothberg <valentinrothberg@gmail.com>
Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2016-10-10 07:12:02 -06:00
Arnd Bergmann 7c8fe516bd [media] v4l: remove MEDIA_TUNER dependency for VIDEO_TUNER
em28xx selects VIDEO_TUNER, which has a dependency on MEDIA_TUNER,
so we get a Kconfig warning if that is disabled:

warning: (VIDEO_PVRUSB2 && VIDEO_USBVISION && VIDEO_GO7007 && VIDEO_AU0828_V4L2 && VIDEO_CX231XX && VIDEO_TM6000 && VIDEO_EM28XX && VIDEO_IVTV && VIDEO_MXB && VIDEO_CX18 && VIDEO_CX23885 && VIDEO_CX88 && VIDEO_BT848 && VIDEO_SAA7134 && VIDEO_SAA7164) selects VIDEO_TUNER which has unmet direct dependencies (MEDIA_SUPPORT && MEDIA_TUNER)

VIDEO_TUNER does not actually depend on MEDIA_TUNER, and the
dependency does nothing except cause the above warning, so let's
remove it.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 13:16:33 -02:00
Jacek Anaszewski 17f3882203 [media] v4l2-flash-led-class: Add missing VIDEO_V4L2 Kconfig dependency
Fixes the following randconfig problem:

drivers/built-in.o: In function `v4l2_flash_release':
(.text+0x12204f): undefined reference to `v4l2_async_unregister_subdev'
drivers/built-in.o: In function `v4l2_flash_release':
(.text+0x122057): undefined reference to `v4l2_ctrl_handler_free'
drivers/built-in.o: In function `v4l2_flash_close':
v4l2-flash-led-class.c:(.text+0x12208f): undefined reference to `v4l2_fh_is_singular'
v4l2-flash-led-class.c:(.text+0x1220c8): undefined reference to `__v4l2_ctrl_s_ctrl'
drivers/built-in.o: In function `v4l2_flash_open':
v4l2-flash-led-class.c:(.text+0x12227f): undefined reference to `v4l2_fh_is_singular'
drivers/built-in.o: In function `v4l2_flash_init_controls':
v4l2-flash-led-class.c:(.text+0x12274e): undefined reference to `v4l2_ctrl_handler_init_class'
v4l2-flash-led-class.c:(.text+0x122797): undefined reference to `v4l2_ctrl_new_std_menu'
v4l2-flash-led-class.c:(.text+0x1227e0): undefined reference to `v4l2_ctrl_new_std'
v4l2-flash-led-class.c:(.text+0x122826): undefined reference to `v4l2_ctrl_handler_setup'
v4l2-flash-led-class.c:(.text+0x122839): undefined reference to `v4l2_ctrl_handler_free'
drivers/built-in.o: In function `v4l2_flash_init':
(.text+0x1228e2): undefined reference to `v4l2_subdev_init'
drivers/built-in.o: In function `v4l2_flash_init':
(.text+0x12293b): undefined reference to `v4l2_async_register_subdev'
drivers/built-in.o: In function `v4l2_flash_init':
(.text+0x122949): undefined reference to `v4l2_ctrl_handler_free'
drivers/built-in.o:(.rodata+0x20ef8): undefined reference to `v4l2_subdev_queryctrl'
drivers/built-in.o:(.rodata+0x20f10): undefined reference to `v4l2_subdev_querymenu'

Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Sakari Ailus <sakari.ailus@iki.fi>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
2015-10-22 15:48:27 -02:00
Jan Kara 21fb0cb7ec [media] vb2: Provide helpers for mapping virtual addresses
Provide simple helper functions to map virtual address range into an
array of pfns / pages.

Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-08-16 13:10:42 -03:00
Linus Torvalds 13d45f79a2 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull LED subsystem updates from Bryan Wu:
 "In this cycle, we finished to merge patches for LED Flash class
  driver.

  Other than that we have some bug fixes and new drivers for LED
  controllers"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds: (33 commits)
  leds:lp55xx: fix firmware loading error
  leds: fix max77693-led build errors
  leds: fix aat1290 build errors
  leds: aat1290: pass flags parameter to devm_gpiod_get
  leds: ktd2692: pass flags parameter to devm_gpiod_get
  drivers/leds: don't use module_init in non-modular leds-cobalt-raq.c
  leds: aat1290: add support for V4L2 Flash sub-device
  DT: aat1290: Document handling external strobe sources
  leds: max77693: add support for V4L2 Flash sub-device
  media: Add registration helpers for V4L2 flash sub-devices
  v4l: async: Add a pointer to of_node to struct v4l2_subdev, match it
  Documentation: leds: Add description of v4l2-flash sub-device
  leds: add BCM6358 LED driver
  leds: add DT binding for BCM6358 LED controller
  leds: fix brightness changing when software blinking is active
  Documentation: leds-lp5523: describe master fader attributes
  leds: lp5523: add master_fader support
  leds: leds-gpio: Allow compile test if !GPIOLIB
  leds: leds-gpio: Add missing #include <linux/of.h>
  gpiolib: Add missing dummies for the unified device properties interface
  ...
2015-07-01 19:09:11 -07:00
Jacek Anaszewski 42bd6f59ae media: Add registration helpers for V4L2 flash sub-devices
This patch adds helper functions for registering/unregistering
LED Flash class devices as V4L2 sub-devices. The functions should
be called from the LED subsystem device driver. In case the
support for V4L2 Flash sub-devices is disabled in the kernel
config the functions' empty versions will be used.

Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Sakari Ailus <sakari.ailus@iki.fi>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
2015-06-22 13:53:16 -07:00
Geert Uytterhoeven 5d9b709a17 [media] v4l: VIDEOBUF2_DMA_SG should depend on HAS_DMA
If NO_DMA=y:

    ERROR: "dma_unmap_sg" [drivers/media/v4l2-core/videobuf2-dma-sg.ko] undefined!
    ERROR: "dma_map_sg" [drivers/media/v4l2-core/videobuf2-dma-sg.ko] undefined!
    ERROR: "dma_sync_sg_for_cpu" [drivers/media/v4l2-core/videobuf2-dma-sg.ko] undefined!

VIDEOBUF2_DMA_SG cannot be enabled manually by the user, it's always
selected automatically by drivers that need it. Several of those drivers
already have an explicit dependency on HAS_DMA.

Make VIDEOBUF2_DMA_SG depend on HAS_DMA. This makes it easier to find
drivers that select VIDEOBUF2_DMA_SG without depending on HAS_DMA, as
Kconfig will give a warning.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 07:12:12 -03:00
Mark Brown 19f94f9700 v4l2-pci-skeleton: Only build if PCI is available
Currently arm64 does not support PCI but it does support v4l2. Since the
PCI skeleton driver is built unconditionally as a module with no dependency
on PCI this causes build failures for arm64 allmodconfig. Fix this by
defining a symbol VIDEO_PCI_SKELETON for the skeleton and conditionalising
the build on that.

Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org> [added VIDEO dependencies]
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-09-26 11:02:58 +02:00
Hans Verkuil 701b57ee33 [media] vb2: Add videobuf2-dvb support
With the new vb2_thread_start/stop core code it is very easy to implement
videobuf2-dvb. This should simplify converting existing videobuf drivers to
vb2.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-04-16 18:59:29 -03:00
Hans Verkuil a03636cb21 [media] omap24xx/tcm825x: move to staging for future removal
The omap24xx driver and the tcm825x sensor driver are the only two
remaining drivers to still use the old deprecated v4l2-int-device API.

Nobody maintains these drivers anymore. But unfortunately the v4l2-int-device
API is used by out-of-tree drivers (MXC platform). This is a very bad situation
since as long as this deprecated API stays in the kernel there is no reason for
those out-of-tree drivers to convert.

This patch moves v4l2-int-device and the two drivers that depend on it to
staging in preparation for their removal.

If someone would be interested in getting these drivers to work, then start with
this since it's not very far from the state where they used to work:

<URL:http://vihersipuli.retiisi.org.uk/cgi-bin/gitweb.cgi?p=~sailus/linux-omap/.git;a=summary>

The branch is n800-cam. Porting to up-to-date APIs can then be done. David
might have done some work in that area, so check with him first.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Sakari Ailus <sakari.ailus@iki.fi>
Cc: David Cohen <dacohen@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-20 13:45:22 -02:00
Geert Uytterhoeven da508f5799 [media] media/v4l2: VIDEOBUF2_DMA_CONTIG should depend on HAS_DMA
m68k/sun3:
drivers/media/v4l2-core/videobuf2-dma-contig.c: In function ‘vb2_dc_mmap’:
drivers/media/v4l2-core/videobuf2-dma-contig.c:204: error: implicit declaration of function ‘dma_mmap_coherent’
drivers/media/v4l2-core/videobuf2-dma-contig.c: In function ‘vb2_dc_get_base_sgt’:
drivers/media/v4l2-core/videobuf2-dma-contig.c:387: error: implicit declaration of function ‘dma_get_sgtable’
Make VIDEOBUF2_DMA_CONTIG and VIDEO_SH_VEU (which selects the former and
doesn't have a platform dependency) depend on HAS_DMA to fix this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-18 18:03:18 -03:00
Sakari Ailus 668a8b3b57 [media] v4l: Don't compile v4l2-int-device unless really needed
Add a configuration option for v4l2-int-device so it is only compiled when
necessary, which is only by omap24xxcam and tcm825x drivers.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-06 10:46:40 -02:00
Tomasz Stanislawski 89d2ee0890 [media] v4l: vb2-vmalloc: add support for dmabuf importing
This patch adds support for importing DMABUF files for
vmalloc allocator in Videobuf2.

Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-25 17:18:58 -02:00
Sumit Semwal 8c417d03a8 [media] v4l: vb2-dma-contig: add support for dma_buf importing
This patch makes changes for adding dma-contig as a dma_buf user. It provides
function implementations for the {attach, detach, map, unmap}_dmabuf()
mem_ops of DMABUF memory type.
	[author of the original patch]
	[integration with refactored dma-contig allocator]

Signed-off-by: Sumit Semwal <sumit.semwal@ti.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-25 17:18:44 -02:00
Sumit Semwal c538404869 [media] v4l: vb2: add support for shared buffer (dma_buf)
This patch adds support for DMABUF memory type in videobuf2. It calls relevant
APIs of dma_buf for v4l reqbuf / qbuf / dqbuf operations.
For this version, the support is for videobuf2 as a user of the shared buffer;
so the allocation of the buffer is done outside of V4L2. [A sample allocator of
dma-buf shared buffer is given at [1]]
[1]: Rob Clark's DRM:
   https://github.com/robclark/kernel-omap4/commits/drmplane-dmabuf
   [original work in the PoC for buffer sharing]

Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Sumit Semwal <sumit.semwal@ti.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-11-25 17:11:12 -02:00
Mauro Carvalho Chehab b6334460f2 [media] Cleanup media Kconfig files
- get rid of ridden V4L2_COMMON symbol

  This symbol is not needed anymore; it can be folded with V4L2
  one, simplifying the Kconfig a little bit;

- Comment why some Kconfig items are needed;

- Remove if test for MEDIA_CAMERA_SUPPORT, replacing it by
  depends on.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-21 07:55:47 -03:00
Mauro Carvalho Chehab f0af8fa4da [media] reorganize the API core items
Reorganize the API core changes for them to appear closer to
the items that enable them, and not at the drivers part of
the menu.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-15 16:42:00 -03:00
Mauro Carvalho Chehab 5bc3cb743b [media] v4l: move v4l2 core into a separate directory
Currently, the v4l2 core is mixed together with other non-core drivers.
Move them into a separate directory.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-13 23:02:38 -03:00