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path: root/drivers/media/usb/uvc/uvcvideo.h
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* media: uvcvideo: Use internal kernel integer typesLaurent Pinchart2018-02-231-91/+91
| | | | | | | | | Replace the __[su]{8,16,32} variant of integer types with the non-underscored types as the code is internal to the driver, not exposed to userspace. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* media: uvcvideo: Use kernel integer typesLaurent Pinchart2018-02-231-2/+2
| | | | | | | | Replace the uint_{8,16,32} types with the corresponding native kernel types u{8,16,32}. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* media: uvcvideo: Drop extern keyword in function declarationsLaurent Pinchart2018-02-231-74/+70
| | | | | | | | The extern keyword isn't needed to declare functions in header files. Drop it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* Merge tag 'media/v4.16-2' of ↵Linus Torvalds2018-02-061-5/+30
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 ...
| * media: uvcvideo: Add a metadata device nodeGuennadi Liakhovetski2018-01-041-2/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some UVC video cameras contain metadata in their payload headers. This patch extracts that data, adding more clock synchronisation information, on both bulk and isochronous endpoints and makes it available to the user space on a separate video node, using the V4L2_CAP_META_CAPTURE capability and the V4L2_BUF_TYPE_META_CAPTURE buffer queue type. By default, only the V4L2_META_FMT_UVC pixel format is available from those nodes. However, cameras can be added to the device ID table to additionally specify their own metadata format, in which case that format will also become available from the metadata node. [Use put_unaligned instead of __put_unaligned_cpu64] [Use put_unaligned for the sof field as well] Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
| * media: uvcvideo: Factor out video device registration to a functionLaurent Pinchart2018-01-041-0/+8
| | | | | | | | | | | | | | | | | | | | The function will then be used to register the video device for metadata capture. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com> Tested-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
| * media: uvcvideo: Use ktime_t for timestampsArnd Bergmann2018-01-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | uvc_video_get_ts() returns a 'struct timespec', but all its users really want a nanoseconds variable anyway. Changing the deprecated ktime_get_ts/ktime_get_real_ts to ktime_get and ktime_get_real simplifies the code noticeably, while keeping the resulting numbers unchanged. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
| * media: uvcvideo: Use ktime_t for statsArnd Bergmann2018-01-041-2/+2
| | | | | | | | | | | | | | | | | | | | 'struct timespec' works fine here, but we try to migrate away from it in favor of ktime_t or timespec64. In this case, using ktime_t produces the simplest code. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
| * media: uvcvideo: Add D3DFMT_L8 supportNicolas Dufresne2017-12-081-0/+5
| | | | | | | | | | | | | | | | | | | | Microsoft HoloLense UVC sensor uses D3DFMT instead of FOURCC when exposing formats. This adds support for D3DFMT_L8 as exposed from the Acer Windows Mixed Reality Headset. Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* | media: annotate ->poll() instancesAl Viro2017-11-271-1/+1
|/ | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* 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: uvcvideo: Convert from using an atomic variable to a reference countGuennadi Liakhovetski2017-08-201-1/+1
| | | | | | | | | | | | When adding support for metadata nodes, we'll have to keep video devices registered until all metadata nodes are closed too. Since this has nothing to do with stream counting, replace the nstreams atomic variable with a reference counter. Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com> 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>
* media: uvcvideo: Fix incorrect timeout for Get RequestJim Lin2017-08-201-1/+1
| | | | | | | | | | | | | | | Section 9.2.6.4 of USB 2.0/3.x specification describes that "device must be able to return the first data packet to host within 500 ms of receipt of the request. For subsequent data packet, if any, the device must be able to return them within 500 ms". This is to fix incorrect timeout and change it from 300 ms to 500 ms to meet the timing specified by specification for Get Request. Signed-off-by: Jim Lin <jilin@nvidia.com> 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>
* [media] uvcvideo: Add support for Intel SR300 depth cameraDaniel Patrick Johnson2017-04-101-0/+9
| | | | | | | | | | | | Add support for Intel SR300 depth camera in uvc driver. This includes adding three uvc GUIDs for the required pixel formats and updating the uvc driver GUID-to-4cc tables with the new formats. Signed-off-by: Daniel Patrick Johnson <teknotus@teknot.us> Signed-off-by: Aviv Greenberg <avivgr@gmail.com> Signed-off-by: Evgeni Raikhel <evgeni.raikhel@intel.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* [media] uvcvideo: Change result code of debugfs_init to voidJaejoong Kim2017-01-311-2/+2
| | | | | | | | | The device driver should keep going even if debugfs initialization fails. So, change the return type to void. Signed-off-by: Jaejoong Kim <climbbb.kim@gmail.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* [media] uvcvideo: Add bayer 16-bit format patternsEdgar Thier2016-11-231-0/+12
| | | | | | | | | | Those formats are implemented by The DFK 23UP1300, DFK 23UX249 and DFK 23UX250 USB 3.0 industrial cameras from The Imaging Source. Signed-off-by: Edgar Thier <info@edgarthier.net> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* [media] UVC: Add support for R200 depth cameraAviv Greenberg2016-03-031-0/+12
| | | | | | | | | | | | | Add support for Intel R200 depth camera in uvc driver. This includes adding new uvc GUIDs for the new pixel formats, adding new V4L pixel format definition to user api headers, and updating the uvc driver GUID-to-4cc tables with the new formats. Tested-by: Greenberg, Aviv D <aviv.d.greenberg@intel.com> Signed-off-by: Aviv Greenberg <aviv.d.greenberg@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* Revert "[media] UVC: Add support for ds4 depth camera"Mauro Carvalho Chehab2015-12-121-12/+0
| | | | | | | | | | | This reverts commit 120c41d3477a23c6941059401db63677736f1935. The patch doesn't add the corresponding documentation bits to the media infrastructure uAPI DocBook. Also, they're for 3D formats, with requre further discussions. Requested-by: Hans Verkuil <hverkuil@xs4all.nl> Requested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* [media] UVC: Add support for ds4 depth cameraAviv Greenberg2015-12-031-0/+12
| | | | | | | | | | | | | | Add support for Intel DS4 depth camera in uvc driver. This includes adding new uvc GUIDs for the new pixel formats, adding new V4L pixel format definition to user api headers, and updating the uvc driver GUID-to-4cc tables with the new formats. Change-Id: If240d95a7d4edc8dcc3e02d58cd8267a6bbf6fcb Tested-by: Greenberg, Aviv D <aviv.d.greenberg@intel.com> Signed-off-by: Aviv Greenberg <aviv.d.greenberg@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] media: videobuf2: Restructure vb2_bufferJunghak Sung2015-10-011-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove v4l2 stuff - v4l2_buf, v4l2_plane - from struct vb2_buffer. Add new member variables - bytesused, length, offset, userptr, fd, data_offset - to struct vb2_plane in order to cover all information of v4l2_plane. struct vb2_plane { <snip> unsigned int bytesused; unsigned int length; union { unsigned int offset; unsigned long userptr; int fd; } m; unsigned int data_offset; } Replace v4l2_buf with new member variables - index, type, memory - which are common fields for buffer management. struct vb2_buffer { <snip> unsigned int index; unsigned int type; unsigned int memory; unsigned int num_planes; struct vb2_plane planes[VIDEO_MAX_PLANES]; <snip> }; v4l2 specific fields - flags, field, timestamp, timecode, sequence - are moved to vb2_v4l2_buffer in videobuf2-v4l2.c struct vb2_v4l2_buffer { struct vb2_buffer vb2_buf; __u32 flags; __u32 field; struct timeval timestamp; struct v4l2_timecode timecode; __u32 sequence; }; 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] uvcvideo: Disable hardware timestamps by defaultLaurent Pinchart2015-09-251-0/+1
| | | | | | | | | | The hardware timestamping implementation has been reported as not working correctly on at least the Logitech C920. Until this can be fixed, disable it by default. Reported-by: Peter Rabbitson <rabbit@rabbit.us> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] uvcvideo: Remove unneeded device disconnected flagLaurent Pinchart2015-05-301-5/+0
| | | | | | | | | | | | | | | The UVC_DEV_DISCONNECTED flag is set when the USB device is disconnected, and checked in the open() handler to refuse opening a device that has been disconnected. This is inherently racy, but the race condition is taken care of in the V4L2 core, which also fails open() calls when the V4L2 device node has been unregistered. As the uvcvideo USB disconnect handler unregisters all its video device nodes, the UVC_DEV_DISCONNECTED flag doesn't serve any purpose anymore and can be removed. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] uvcvideo: Implement DMABUF exporter roleLaurent Pinchart2015-05-301-0/+2
| | | | | | | | Now that videobuf2-vmalloc supports exporting buffers, add support for the DMABUF exporter role by plugging in the videobuf2 ioctl helper. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] uvc: embed video_deviceHans Verkuil2015-04-081-1/+1
| | | | | | | | | Embed the video_device struct to simplify the error handling and in order to (eventually) get rid of video_device_alloc/release. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] uvcvideo: Add GUID for BGR 8:8:8William Manley2014-12-231-0/+3
| | | | | | | | | | | | | | | | | | | | | | The Magewell XI100DUSB-HDMI[1] video capture device reports the pixel format "e436eb7d-524f-11ce-9f53-0020af0ba770". This is its GUID for BGR 8:8:8. The UVC 1.5 spec[2] only defines GUIDs for YUY2, NV12, M420 and I420. This seems to be an extension documented in the Microsoft Windows Media Format SDK[3] - or at least the Media Format SDK was the only hit that Google gave when searching for the GUID. This Media Format SDK defines this GUID as corresponding to `MEDIASUBTYPE_RGB24`. Note though, the XI100DUSB outputs BGR e.g. byte-reversed. I don't know if its the capture device in error or Microsoft mean BGR when they say RGB. [1]: http://www.magewell.com/hardware/dongles/xi100dusb-hdmi/xi100dusb-hdmi_features.html?lang=en [2]: http://www.usb.org/developers/docs/devclass_docs/USB_Video_Class_1_5.zip [3]: http://msdn.microsoft.com/en-gb/library/windows/desktop/dd757532(v=vs.85).aspx Signed-off-by: William Manley <will@williammanley.net> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] uvcvideo: Rename and split uvc_queue_enable to uvc_queue_stream(on|off)Laurent Pinchart2014-11-251-1/+4
| | | | | | | | This brings the function name in line with the V4L2 API terminology and allows removing the duplicate queue type check. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] uvcvideo: Rename uvc_alloc_buffers to uvc_request_buffersLaurent Pinchart2014-11-251-1/+1
| | | | | | | This brings the function name in line with the V4L2 API terminology. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] uvcvideo: Don't stop the stream twice at file handle releaseLaurent Pinchart2014-11-251-1/+1
| | | | | | | | | When releasing the file handle the driver calls the vb2_queue_release which turns the stream off. There's thus no need to turn the stream off explicitly beforehand. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] uvcvideo: Move to video_ioctl2Laurent Pinchart2014-11-251-1/+1
| | | | | | | Simplify ioctl handling by using video_ioctl2. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] uvcvideo: Add quirk to force the Oculus DK2 IR tracker to grayscalePhilipp Zabel2014-11-251-0/+1
| | | | | | | | | This patch adds a quirk to force Y8 pixel format even if the camera reports half-width YUYV. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: uvcvideo: Fix buffer completion size checkLaurent Pinchart2014-10-211-1/+0
| | | | | | | | | | | | | | | | | | | | | | Commit e93e7fd9f5a3fffec7792dbcc4c3574653effda7 ("v4l2: uvcvideo: Allow using larger buffers") reworked the buffer size sanity check at buffer completion time to use the frame size instead of the allocated buffer size. However, it introduced two bugs in doing so: - it assigned the allocated buffer size to the frame_size field, instead of assigning the correct frame size - it performed the assignment in the S_FMT handler, resulting in the frame_size field being uninitialized if the userspace application doesn't call S_FMT. Fix both issues by removing the frame_size field and validating the buffer size against the UVC video control dwMaxFrameSize. Fixes: e93e7fd9f5a3 ("v4l2: uvcvideo: Allow using larger buffers") Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l2: uvcvideo: Allow using larger buffersGuennadi Liakhovetski2014-09-211-0/+2
| | | | | | | | | | | | | | A test in uvc_video_decode_isoc() checks whether an image has been received from the camera completely. For this the data amount is compared to the buffer length, which, however, doesn't have to be equal to the image size. Switch to using formats .sizeimage field for an exact expected image size. [Renamed image_size to frame_size] Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] uvcvideo: Work around buggy Logitech C920 firmwareWilliam Manley2014-09-211-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | The uvcvideo webcam driver exposes the v4l2 control "Exposure (Absolute)" which allows the user to control the exposure time of the webcam, essentially controlling the brightness of the received image. By default the webcam automatically adjusts the exposure time automatically but the if you set the control "Exposure, Auto"="Manual Mode" the user can fix the exposure time. Unfortunately it seems that the Logitech C920 has a firmware bug where it will forget that it's in manual mode temporarily during initialisation. This means that the camera doesn't respect the exposure time that the user requested if they request it before starting to stream video. They end up with a video stream which is either too bright or too dark and must reset the controls after video starts streaming. This patch introduces the quirk UVC_QUIRK_RESTORE_CTRLS_ON_INIT which causes the cached controls to be re-uploaded to the camera immediately after initialising the camera. This quirk is applied to the C920 to work around this camera bug. Signed-off-by: William Manley <will@williammanley.net> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] uvcvideo: Add bayer 8-bit patterns to uvcvideoEdgar Thier2014-03-051-0/+12
| | | | | | | | | Add bayer 8-bit GUIDs to uvcvideo and associated them with the corresponding V4L2 pixel formats. Signed-off-by: Edgar Thier <info@edgarthier.net> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] uvcvideo: Enable VIDIOC_CREATE_BUFSPhilipp Zabel2014-02-281-0/+2
| | | | | | | | | | | | | This patch enables the ioctl to create additional buffers on the videobuf2 capture queue. [laurent.pinchart@ideasonboard.com: Acquire privileges instead of just checking them in VIDIOC_CREATE_BUFS implementation] Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] uvcvideo: Remove duplicate check for number of buffers in queue_setupLaurent Pinchart2014-02-281-2/+0
| | | | | | | | | | videobuf2 already ensures that the number of buffers will not exceed VIDEO_MAX_FRAME, which is equal to our arbitraty limit of UVC_MAX_VIDEO_BUFFERS. Remove the duplicate check. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] uvcvideo: Fix open/close race conditionLaurent Pinchart2013-06-081-4/+3
| | | | | | | | | | | | | Maintaining the users count using an atomic variable makes sure that access to the counter won't be racy, but doesn't serialize access to the operations protected by the counter. This creates a race condition that could result in the status URB being submitted multiple times. Use a mutex to protect the users count and serialize access to the status start and stop operations. Reported-by: Shawn Nematbakhsh <shawnn@chromium.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] uvcvideo: Mark first output terminal as default video nodeLaurent Pinchart2012-11-281-0/+4
| | | | | | | | | | | | The MEDIA_ENT_FL_DEFAULT identifies entities that are considered as default for their group and type. For video nodes, it identifies the node that application should use by default. UVC devices don't report which output terminal should be considered as the default, use the first one. Most devices have a single output terminal anyway. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] uvcvideo: Add VIDIOC_[GS]_PRIORITY supportLaurent Pinchart2012-11-281-0/+1
| | | | | | Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] uvcvideo: Set device_caps in VIDIOC_QUERYCAPLaurent Pinchart2012-11-281-0/+2
| | | | | | | | | | Set the capabilities field to global capabilities, and the device_caps field to the video node capabilities. This issue was found by the v4l2-compliance tool. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] uvcvideo: Don't fail when an unsupported format is requestedLaurent Pinchart2012-11-281-0/+1
| | | | | | | | | Return the default format in that case. This issue was found by the v4l2-compliance tool. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] uvc: Add return code check at vb2_queue_init()Ezequiel Garcia2012-10-061-1/+1
| | | | | | | | | This function returns an integer and it's mandatory to check the return code. Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] rename most media/video usb drivers to media/usbMauro Carvalho Chehab2012-08-151-0/+718
Rename all USB drivers with their own directory under drivers/media/video into drivers/media/usb and update the building system. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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