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* media: remove the old videobuf frameworkHans Verkuil2023-09-271-5/+0
| | | | | | | | | The last driver that still used this old framework has been converted to the videobuf2 framework. So it is now time to delete the old videobuf code. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Reviewed-by: Hans de Goede <hdegoede@redhat.com>
* media: Add MIPI CCI register access helper functionsHans de Goede2023-08-101-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The CSI2 specification specifies a standard method to access camera sensor registers called "Camera Control Interface (CCI)". This uses either 8 or 16 bit (big-endian wire order) register addresses and supports 8, 16, 24 or 32 bit (big-endian wire order) register widths. Currently a lot of Linux camera sensor drivers all have their own custom helpers for this, often copy and pasted from other drivers. Add a set of generic helpers for this so that all sensor drivers can switch to a single common implementation. These helpers take an extra optional "int *err" function parameter, this can be used to chain a bunch of register accesses together with only a single error check at the end, rather than needing to error check each individual register access. The first failing call will set the contents of err to a non 0 value and all other calls will then become no-ops. Link: https://lore.kernel.org/linux-media/59aefa7f-7bf9-6736-6040-39551329cd0a@redhat.com/ Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Tested-by: Tommaso Merciai <tomm.merciai@gmail.com> Reviewed-by: Tommaso Merciai <tomm.merciai@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
* media: Kconfig: cleanup VIDEO_DEV dependenciesMauro Carvalho Chehab2022-03-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | media Kconfig has two entries associated to V4L API: VIDEO_DEV and VIDEO_V4L2. On Kernel 2.6.x, there were two V4L APIs, each one with its own flag. VIDEO_DEV were meant to: 1) enable Video4Linux and make its Kconfig options to appear; 2) it makes the Kernel build the V4L core. while VIDEO_V4L2 where used to distinguish between drivers that implement the newer API and drivers that implemented the former one. With time, such meaning changed, specially after the removal of all V4L version 1 drivers. At the current implementation, VIDEO_DEV only does (1): it enables the media options related to V4L, that now has: menu "Video4Linux options" visible if VIDEO_DEV source "drivers/media/v4l2-core/Kconfig" endmenu but it doesn't affect anymore the V4L core drivers. The rationale is that the V4L2 core has a "soft" dependency at the I2C bus, and now requires to select a number of other Kconfig options: config VIDEO_V4L2 tristate depends on (I2C || I2C=n) && VIDEO_DEV select RATIONAL select VIDEOBUF2_V4L2 if VIDEOBUF2_CORE default (I2C || I2C=n) && VIDEO_DEV In the past, merging them would be tricky, but it seems that it is now possible to merge those symbols, in order to simplify V4L dependencies. Let's keep VIDEO_DEV, as this one is used on some make *defconfig configurations. Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> # for meson-vdec & meson-ge2d Acked-by: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com> Acked-by: Łukasz Stelmach <l.stelmach@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
* media: Makefiles: sort entries where it fitsMauro Carvalho Chehab2022-03-141-16/+18
| | | | | | | | | | | | | Alphabetically sort entries at the Makefiles per group, in ASCII order, e. g., using the output of: $ LC_ALL=C sort Makefile |grep obj-y ... $ LC_ALL=C sort Makefile |grep obj.*CONFIG ... Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
* media: Add VP9 v4l2 libraryAndrzej Pietrasiewicz2021-11-221-0/+1
| | | | | | | | | Provide code common to vp9 drivers in one central location. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@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>
* media: v4l: async, fwnode: Improve module organisationSakari Ailus2021-06-021-2/+3
| | | | | | | | | | | | | | | | | | | | 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>
* media: v4l2-ctrls: split up into four source filesHans Verkuil2021-05-251-2/+3
| | | | | | | | | | | | | | | | | | | | | | The v4l2-ctrls.c source has become much too big, so split it up into four separate parts: v4l2-ctrls-core.c: contains the core framework code v4l2-ctrls-api.c: contains the uAPI interface to the framework v4l2-ctrls-defs.c: contains the control definitions v4l2-ctrls-request.c: contains the Request API helpers And it adds a new v4l2-ctrls-priv.h. No code was changed, but a number of checkpatch.pl warnings were fixed (alignment, f == NULL -> !f, long comment block coding style, unsigned -> unsigned int). The copyright statements were updated as well since they were quite out of date. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
* media: Remove the legacy v4l2-clk APIEzequiel Garcia2021-02-061-1/+1
| | | | | | | | | | | | | | | | | | | The V4L2 temporary clock helper API, was introduced in late 2012 and, as mentioned in the documentation, meant to be replaced by the generic clock API, once the generic clock framework became available on all relevant architectures. The generic clock API is a well-established API (since a few years now). The last few media capture drivers and sensors using v4l2-clk have been converted to the generic clock framework. We can now remove the v4l2-clk API. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Acked-by: Petr Cvek <petrcvekcz@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
* media: v4l2-core: Add helpers to build the H264 P/B0/B1 reflistsBoris Brezillon2020-04-211-0/+1
| | | | | | | | | | | | | | | | 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>
* media: add v4l2 JPEG helpersPhilipp Zabel2020-04-141-0/+2
| | | | | | | | | | | | | | | | | 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>
* media: v4l2-core: move i2c helpers out of v4l2-common.cEzequiel Garcia2019-08-261-0/+1
| | | | | | | | | | | | | 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>
* media: v4l2-core: move spi helpers out of v4l2-common.cEzequiel Garcia2019-08-261-0/+1
| | | | | | | | | | Separate the spi helpers to v4l2-spi.c, in order to get rid of the ifdefery. No functional changes intended, this is just a cosmetic change to organize the code better. 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>
* media: v4l2-core: Module re-organizationEzequiel Garcia2019-08-261-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | videodev.ko and v4l2-common.ko driver are built under the same conditions. Therefore, it doesn't make much sense to split them in two different modules. Splitting v4l2-common to its own driver was done many years ago: commit a9254475bbfbed5f0596d952c6a3c9806e19dd0b Author: Mauro Carvalho Chehab <mchehab@infradead.org> Date: Tue Jan 29 18:32:35 2008 -0300 V4L/DVB (7115): Fix bug #9833: regression when compiling V4L without I2C Back then, the subsystem organization was different and the module split was needed. However, with the current organization, there is no issue compiling V4L2 with I2C as y/m/n. This commit makes v4l2-common part of our V4L2 core driver (videodev.ko). 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>
* media: v4l2-core: Cleanup MakefileEzequiel Garcia2019-07-251-7/+3
| | | | | | | | Use the videodev-$(CONFIG_FOO) syntax to simplify the Makefile. 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>
* media: v4l2-core: get rid of videobuf-dvbMauro Carvalho Chehab2018-05-041-1/+0
| | | | | | | | | 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>
* media: videobuf2: fix build issues with vb2-traceMauro Carvalho Chehab2018-02-231-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | There was a trouble with vb2-trace: instead of being part of VB2 core, it was stored at V4L2 videodev. That was wrong, as it doesn't actually belong to V4L2 core. Now that vb2 is not part of v4l2-core, its trace functions should be moved altogether. So, move it to its rightful place: at videobuf2-core. That fixes those errors: drivers/media/common/videobuf2/videobuf2-core.o: In function `__read_once_size': ./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_buf_queue' ./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_buf_queue' ./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_buf_done' ./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_buf_done' ./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_qbuf' ./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_qbuf' ./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_dqbuf' ./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_dqbuf' drivers/media/common/videobuf2/videobuf2-core.o:(__jump_table+0x10): undefined reference to `__tracepoint_vb2_buf_queue' drivers/media/common/videobuf2/videobuf2-core.o:(__jump_table+0x28): undefined reference to `__tracepoint_vb2_buf_done' drivers/media/common/videobuf2/videobuf2-core.o:(__jump_table+0x40): undefined reference to `__tracepoint_vb2_qbuf' drivers/media/common/videobuf2/videobuf2-core.o:(__jump_table+0x58): undefined reference to `__tracepoint_vb2_dqbuf' Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* media: move dvb kAPI headers to include/mediaMauro Carvalho Chehab2017-12-281-1/+0
| | | | | | | | 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>
* media: move videobuf2 to drivers/media/commonMauro Carvalho Chehab2017-12-281-7/+0
| | | | | | | 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>
* License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman2017-11-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* [media] v4l: Remove V4L2 OF framework in favour of V4L2 fwnode frameworkSakari Ailus2017-06-061-3/+0
| | | | | | | | | | | All drivers have been converted from V4L2 OF to V4L2 fwnode. The V4L2 OF framework is now unused. Remove it. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.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>
* [media] v4l: fwnode: Support generic fwnode for parsing standardised propertiesSakari Ailus2017-06-061-0/+1
| | | | | | | | | | | | | | | | | 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>
* [media] v4l2-mc: add a generic function to create the media graphMauro Carvalho Chehab2016-02-101-0/+1
| | | | | | | | | | The em28xx_v4l2_create_media_graph() is almost generic enough to be at the core, as an ancillary function. Make it even more generic, by getting rid of em28xx-specific code, relying only at the media_device, in order to discover all entities found on PC-customer's hardware and add it at the V4L2 core. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] media: videobuf2: Prepare to divide videobuf2Junghak Sung2015-10-201-1/+1
| | | | | | | | | | | | | | | | | Prepare to divide videobuf2 - Separate vb2 trace events from v4l2 trace event. - Make wrapper functions that will move to v4l2-side. - Make vb2_core_* functions that will remain in core-side. - Add a callback function table for buffer operation which makes vb2-core to be able to invoke a v4l2-side functions. - Rename internal functions as vb2_*. Signed-off-by: Junghak Sung <jh1009.sung@samsung.com> Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com> Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com> Acked-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] media: videobuf2: Replace videobuf2-core with videobuf2-v4l2Junghak Sung2015-10-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make videobuf2-v4l2 as a wrapper of videobuf2-core for v4l2-use. And replace videobuf2-core.h with videobuf2-v4l2.h. This renaming change should be accompanied by the modifications of all device drivers that include videobuf2-core.h. It can be done with just running this shell script. replace() { str1=$1 str2=$2 dir=$3 for file in $(find $dir -name *.h -o -name *.c -o -name Makefile) do echo $file sed "s/$str1/$str2/g" $file > $file.out mv $file.out $file done } replace "videobuf2-core" "videobuf2-v4l2" "include/media/" replace "videobuf2-core" "videobuf2-v4l2" "drivers/media/" replace "videobuf2-core" "videobuf2-v4l2" "drivers/usb/gadget/" replace "videobuf2-core" "videobuf2-v4l2" "drivers/staging/media/" Signed-off-by: Junghak Sung <jh1009.sung@samsung.com> Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com> Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com> Acked-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l2: move tracepoint generation into separate filePhilipp Zabel2015-08-111-0/+3
| | | | | | | | | | | | | | | | | | | To compile videobuf2-core as a module, the vb2_* tracepoints must be exported from the videodev module. Instead of exporting vb2 tracepoint symbols from v4l2-ioctl.c, move the tracepoint generation into a separate file. This patch fixes the following build error in the modpost stage, introduced by 2091f5181c66 ("[media] videobuf2: add trace events"): ERROR: "__tracepoint_vb2_buf_done" undefined! ERROR: "__tracepoint_vb2_dqbuf" undefined! ERROR: "__tracepoint_vb2_qbuf" undefined! ERROR: "__tracepoint_vb2_buf_queue" undefined! Suggested-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* media: Add registration helpers for V4L2 flash sub-devicesJacek Anaszewski2015-06-221-0/+2
| | | | | | | | | | | | | | 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>
* [media] vb2: Add videobuf2-dvb supportHans Verkuil2014-04-161-0/+1
| | | | | | | | | 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>
* [media] omap24xx/tcm825x: move to staging for future removalHans Verkuil2013-12-201-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* [media] v4l2-dv-timings: add new helper moduleHans Verkuil2013-08-181-0/+1
| | | | | | | | | This module makes it easy to filter valid timings from the full list of CEA and DMT timings based on the timings capabilities. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] V4L2: support asynchronous subdevice registrationGuennadi Liakhovetski2013-06-211-1/+2
| | | | | | | | | | | | | | | | | | | | Currently bridge device drivers register devices for all subdevices synchronously, typically, during their probing. E.g. if an I2C CMOS sensor is attached to a video bridge device, the bridge driver will create an I2C device and wait for the respective I2C driver to probe. This makes linking of devices straight forward, but this approach cannot be used with intrinsically asynchronous and unordered device registration systems like the Flattened Device Tree. To support such systems this patch adds an asynchronous subdevice registration framework to V4L2. To use it respective (e.g. I2C) subdevice drivers must register themselves with the framework. A bridge driver on the other hand must register notification callbacks, that will be called upon various related events. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] V4L2: add temporary clock helpersGuennadi Liakhovetski2013-06-211-1/+1
| | | | | | | | | | | | | | | | Typical video devices like camera sensors require an external clock source. Many such devices cannot even access their hardware registers without a running clock. These clock sources should be controlled by their consumers. This should be performed, using the generic clock framework. Unfortunately so far only very few systems have been ported to that framework. This patch adds a set of temporary helpers, mimicking the generic clock API, to V4L2. Platforms, adopting the clock API, should switch to using it. Eventually this temporary API should be removed. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* Merge tag 'v3.9-rc5' into patchworkMauro Carvalho Chehab2013-04-011-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Linux 3.9-rc5 * tag 'v3.9-rc5': (1080 commits) Linux 3.9-rc5 Revert "lockdep: check that no locks held at freeze time" dw_dmac: adjust slave_id accordingly to request line base dmaengine: dw_dma: fix endianess for DT xlate function PNP: List Rafael Wysocki as a maintainer rbd: don't zero-fill non-image object requests ia64 idle: delete stale (*idle)() function pointer Btrfs: don't drop path when printing out tree errors in scrub target: Fix RESERVATION_CONFLICT status regression for iscsi-target special case tcm_vhost: Avoid VIRTIO_RING_F_EVENT_IDX feature bit Revert "mm: introduce VM_POPULATE flag to better deal with racy userspace programs" usb: ftdi_sio: Add support for Mitsubishi FX-USB-AW/-BD mg_disk: fix error return code in mg_probe() Btrfs: fix wrong return value of btrfs_lookup_csum() Btrfs: fix wrong reservation of csums Btrfs: fix double free in the btrfs_qgroup_account_ref() Btrfs: limit the global reserve to 512mb Btrfs: hold the ordered operations mutex when waiting on ordered extents Btrfs: fix space accounting for unlink and rename Btrfs: fix space leak when we fail to reserve metadata space ...
| * [media] fix compilation with both V4L2 and I2C as 'm'Mauro Carvalho Chehab2013-03-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When config options are: CONFIG_VIDEO_DEV=y CONFIG_VIDEO_V4L2=m CONFIG_I2C=m Compilation breaks, as reported by: https://bugzilla.kernel.org/show_bug.cgi?id=55681 Before changeset 7b34be71db533f3e0cf93d53cf62d036cdb5418a, no compilation errors occurred. However, the I2C code there at v4l2-device was incorrectly disabled. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* | [media] Add a V4L2 OF parserGuennadi Liakhovetski2013-03-311-0/+3
|/ | | | | | | | | | | | Add a V4L2 OF parser, implementing bindings documented in Documentation/devicetree/bindings/media/video-interfaces.txt. [s.nawrocki@samsung.com: various corrections and improvements since the initial version] Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: Don't compile v4l2-int-device unless really neededSakari Ailus2013-01-061-1/+2
| | | | | | | | 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>
* [media] Cleanup media Kconfig filesMauro Carvalho Chehab2012-08-211-1/+1
| | | | | | | | | | | | | | - 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>
* [media] common: move media/common/tuners to media/tunersMauro Carvalho Chehab2012-08-131-1/+1
| | | | | | | Move the tuners one level up, as the "common" directory will be used by drivers that are shared between more than one driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] move the dvb/frontends to drivers/media/dvb-frontendsMauro Carvalho Chehab2012-08-131-1/+1
| | | | | | | Raise the DVB frontends one level up, as the intention is to remove the drivers/media/dvb directory. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] dvb: move the dvb core one level upMauro Carvalho Chehab2012-08-131-1/+1
| | | | | | | just like the V4L2 core, move the DVB core to drivers/media, as the intention is to get rid of both "video" and "dvb" directories. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: move v4l2 core into a separate directoryMauro Carvalho Chehab2012-08-131-0/+35
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>
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