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* [media] v4l2-dev: add new VFL_DIR_ definesHans Verkuil2012-09-261-1/+8
| | | | | | | | | These will be used by v4l2-dev.c to improve ioctl checking. I.e. ioctls for capture should return -ENOTTY when called for an output device. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2: make vidioc_s_crop constHans Verkuil2012-09-263-4/+4
| | | | | | | | | Write-only ioctls should have a const argument in the ioctl op. Do this conversion for vidioc_s_crop. Adding const for write-only ioctls was decided during the 2012 Media Workshop. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2: make vidioc_s_modulator constHans Verkuil2012-09-262-2/+2
| | | | | | | | | Write-only ioctls should have a const argument in the ioctl op. Do this conversion for vidioc_s_modulator. Adding const for write-only ioctls was decided during the 2012 Media Workshop. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2: make vidioc_s_audout constHans Verkuil2012-09-261-1/+1
| | | | | | | | | Write-only ioctls should have a const argument in the ioctl op. Do this conversion for vidioc_s_audout. Adding const for write-only ioctls was decided during the 2012 Media Workshop. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2: make vidioc_s_audio constHans Verkuil2012-09-261-1/+1
| | | | | | | | | Write-only ioctls should have a const argument in the ioctl op. Do this conversion for vidioc_s_audio. Adding const for write-only ioctls was decided during the 2012 Media Workshop. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2: make vidioc_(un)subscribe_event constHans Verkuil2012-09-263-5/+5
| | | | | | | | | Write-only ioctls should have a const argument in the ioctl op. Do this conversion for vidioc_(un)subscribe_event. Adding const for write-only ioctls was decided during the 2012 Media Workshop. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2: make vidioc_s_freq_hw_seek constHans Verkuil2012-09-261-1/+1
| | | | | | | | | Write-only ioctls should have a const argument in the ioctl op. Do this conversion for vidioc_s_freq_hw_seek. Adding const for write-only ioctls was decided during the 2012 Media Workshop. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2: make vidioc_s_jpegcomp constHans Verkuil2012-09-261-1/+1
| | | | | | | | | Write-only ioctls should have a const argument in the ioctl op. Do this conversion for vidioc_s_jpegcomp. Adding const for write-only ioctls was decided during the 2012 Media Workshop. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2: make vidioc_s_fbuf constHans Verkuil2012-09-261-1/+1
| | | | | | | | | Write-only ioctls should have a const argument in the ioctl op. Do this conversion for vidioc_s_fbuf. Adding const for write-only ioctls was decided during the 2012 Media Workshop. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2-core: deprecate V4L2_BUF_TYPE_PRIVATEHans Verkuil2012-09-261-8/+0
| | | | | | | | | | This buffer type isn't used at all, and since it is effectively undefined what it should do it is deprecated. The define still exists, but any internal support for such buffers is removed. The decisions to deprecate this was taken during the 2012 Media Workshop. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] media v4l2-mem2mem: fix src/out and dst/cap num_rdySascha Hauer2012-09-181-2/+2
| | | | | | | | | | | src bufs belong to out queue, dst bufs belong to in queue. Currently this is not a real problem since all users currently need exactly one input and one output buffer. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Pawel Osciak <pawel@osciak.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] mt9v032: Provide link frequency controlLaurent Pinchart2012-09-131-0/+3
| | | | | | Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2-ctrls: Add v4l2_ctrl_[gs]_ctrl_int64()Laurent Pinchart2012-09-131-0/+23
| | | | | | | | | | | These helper functions get and set a 64-bit control's value from within a driver. They are similar to v4l2_ctrl_[gs]_ctrl() but operate on 64-bit integer controls instead of 32-bit controls. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] ad9389b: driver for the Analog Devices AD9389B video encoderHans Verkuil2012-09-132-0/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | Initial version of this driver. The full datasheets are available from the Analog Devices website: http://ez.analog.com/docs/DOC-1741 Not all features of the receiver are supported by this driver for various reasons. Most notably: - No CEC support (the CEC API needs a lot more discussion) - No HDCP repeater support (we don't use that either) I'm sure that there are more things missing, but this driver does work well for our hardware. Note that I am using the register addresses instead of register names: the datasheet containing the register descriptions is organized by register address. Using names would make the datasheet lookup very hard. An attempt was made to try and document what is being done when registers are used instead. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] adv7604: driver for the Analog Devices ADV7604 video decoderHans Verkuil2012-09-132-0/+156
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Initial version of this driver. The full datasheets are available from the Analog Devices website: http://ez.analog.com/docs/DOC-1545 Not all features of the receiver are supported by this driver for various reasons. Most notably: - No CEC support (the CEC API needs a lot more discussion) - Only port A of the four HDMI input ports is implemented (our hardware only uses that port) - No HDCP repeater support (we don't use that either) And since there are some 600-odd pages of datasheet for this single device, I'm sure that there are many more things missing, but this driver does work well for our hardware. Note that I am using the register addresses instead of register names: the datasheet containing the register descriptions is organized by register address. Using names would make the datasheet lookup very hard. An attempt was made to try and document what is being done when registers are used instead. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2-common: add CVT and GTF detection functionsHans Verkuil2012-09-131-0/+9
| | | | | | | | | | | | | | These two helper functions detect whether the analog video timings detected by the video receiver match the VESA CVT or GTF standards. They basically do the inverse of the CVT and GTF modeline calculations. This patch also adds a helper function that will determine the aspect ratio based on the provided EDID values. This aspect ratio can be given to the GTF helper function. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2-common: add v4l_match_dv_timingsHans Verkuil2012-09-131-0/+4
| | | | | | | | Add the v4l_match_dv_timings function that can be used to compare two v4l2_dv_timings structs. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2-subdev: add support for the new edid ioctlsHans Verkuil2012-09-131-0/+2
| | | | | Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] V4L: soc-camera: add selection API host operationsGuennadi Liakhovetski2012-08-151-0/+2
| | | | | | | | | Add .get_selection() and .set_selection() soc-camera host driver operations. Additionally check, that the user is not trying to change the output sizes during a running capture. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] soc-camera: Add and use soc_camera_power_[on|off]() helper functionsLaurent Pinchart2012-08-151-0/+10
| | | | | | | | | | | | | Instead of forcing all soc-camera drivers to go through the mid-layer to handle power management, create soc_camera_power_[on|off]() functions that can be called from the subdev .s_power() operation to manage regulators and platform-specific power handling. This allows non soc-camera hosts to use soc-camera-aware clients. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> [g.liakhovetski@gmx.de: fix compile breakage] Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] media: rc: Introduce RX51 IR transmitter driverTimo Kokkonen2012-08-131-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | This is the driver for the IR transmitter diode found on the Nokia N900 (also known as RX51) device. The driver is mostly the same as found in the original 2.6.28 based kernel that comes with the device. The following modifications have been made compared to the original driver version: - Adopt to the changes that has happen in the kernel during the past five years, such as the change in the include paths - The OMAP DM-timers require much more care nowadays. The timers need to be enabled and disabled or otherwise many actions fail. Timers must not be freed without first stopping them or otherwise the timer cannot be requested again. The code has been tested with sending IR codes with N900 device running Debian userland. The device receiving the codes was Anysee DVB-C USB receiver. Signed-off-by: Timo Kokkonen <timo.t.kokkonen@iki.fi> Cc: Tony Lindgren <tony@atomide.com> Cc: linux-omap@vger.kernel.org Cc: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] dvb: get rid of fe_ioctl_override callbackMauro Carvalho Chehab2012-08-131-3/+1
| | | | | | | | | | | | | | | This callback were meant to allow overriding a FE callback, before its call, but it is not really needed, as the callback can be intercepted after tuner attachment. Worse than that, only DVBv3 calls are intercepted this way, so a DVBv5 application will produce different effects than a DVBv3 one. So, get rid of it. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Acked-by: Antti Palosaari <crope@iki.fi> Reviewed-by: Antti Palosaari <crope@iki.fi>
* [media] v4l2: typosMichael Jones2012-08-112-3/+3
| | | | | | | [mchehab@redhat.com: fix a merge conflict at Documentation/video4linux/v4l2-framework.txt] Signed-off-by: Michael Jones <michael.jones@matrix-vision.de> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] omap3isp: ccdc: Add YUV input formats supportLaurent Pinchart2012-08-111-11/+0
| | | | | | | | Enable the bridge automatically when the input format is YUYV8 or UYVY8. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] omap3isp: ccdc: Remove ispccdc_syncif structureLaurent Pinchart2012-08-111-0/+3
| | | | | | | | | | The structure is only used to store configuration data and pass it to CCDC configuration functions. Access the data directly from the locations that need it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2-dev: remove V4L2_FL_LOCK_ALL_FOPSHans Verkuil2012-08-091-3/+0
| | | | | | | | All drivers that needed V4L2_FL_LOCK_ALL_FOPS have been converted, so remove this flag altogether. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] saa7146: remove V4L2_FL_LOCK_ALL_FOPSHans Verkuil2012-08-091-4/+0
| | | | | | | | | | | | Add proper locking to the file operations, allowing for the removal of the V4L2_FL_LOCK_ALL_FOPS flag. I also removed some dead code in the form of the saa7146_devices list and saa7146_devices_lock mutex: these were used once but that was a long time ago. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2: add core support for the new VIDIOC_ENUM_FREQ_BANDS ioctlHans Verkuil2012-07-301-0/+2
| | | | | | | This adds the usual core support code for this new ioctl. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] davinci: vpif: add support for clipping on output dataManjunath Hadli2012-07-301-0/+2
| | | | | | | | | | | add hardware clipping support for VPIF output data. This is needed as it is possible that the external encoder might get confused between the FF or 00 which are a part of the data and that of the SAV or EAV codes. Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com> Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] media: gpio-ir-recv: add allowed_protos for platform dataDu, Changbin2012-07-061-3/+4
| | | | | | | | | | It's better to give platform code a chance to specify the allowed protocols to use. [mchehab@redhat.com: fix merge conflict with a patch that made half of this change] Signed-off-by: Du, Changbin <changbin.du@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] videobuf2-core: add helper functionsHans Verkuil2012-07-061-0/+41
| | | | | | | | | | Add helper functions to make it easier to adapt drivers to vb2. These helpers take care of core locking and check if the filehandle is the owner of the queue. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2-dev/ioctl.c: add vb2_queue support to video_deviceHans Verkuil2012-07-063-0/+21
| | | | | | | | | | | | This prepares struct video_device for easier integration with vb2. It also introduces a new lock that protects the vb2_queue. It is up to the driver to use it or not. And the driver can associate an owner filehandle with the queue to check whether queuing requests are permitted for the calling filehandle. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2-ioctl: remove v4l_(i2c_)print_ioctlHans Verkuil2012-07-061-17/+3
| | | | | | | | v4l_i2c_print_ioctl wasn't used and v4l_print_ioctl could be replaced by v4l_printk_ioctl. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [PATCH] media: add Analog Devices ADV7393 video encoder driverBenoît Thébaudeau2012-07-062-0/+31
| | | | | | | | | Add ADV7393 I²C-based video encoder driver. This driver has been tested on custom hardware. It has been tested for composite output. It is derived from the ADV7343 driver. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] videobuf-core.h: remove input fieldsMauro Carvalho Chehab2012-07-051-2/+0
| | | | | | | | Now that the input fields got removed from the userspace API, there's no sense to keep there at the VB struct. Remove it. Cc: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] media: gpio-ir-recv: add map nameBenoît Thébaudeau2012-06-251-0/+1
| | | | | | | | Make it possible for gpio-ir-recv users to choose a map name. Cc: Ravi Kumar V <kumarrav@codeaurora.org> Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] videobuf2: correct the #ifndef text mistake in videobuf2-dma-contig.hAlbert Wang2012-06-181-3/+3
| | | | | | | | | | It should be a mistake due to copy & paste in header file Correct it in videobuf2-dma-config.h for avoiding duplicate include it Change-Id: I1f71fcec2889c033c7db380c58d9a1369c5afb35 Signed-off-by: Albert Wang <twang13@marvell.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] mt9t001: Implement V4L2_CID_PIXEL_RATE controlLaurent Pinchart2012-05-241-0/+1
| | | | | | | | | The pixel rate control is required by the OMAP3 ISP driver and should be implemented by all media controller-compatible sensor drivers. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] patch for Asus My Cinema PS3-100 (1043:48cd)remi schwartz2012-05-201-0/+1
| | | | | Signed-off-by: Remi Schwartz <remi.schwartz@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] smiapp: Allow using external clock from the clock frameworkSakari Ailus2012-05-201-0/+1
| | | | | | | | Instead of providing a function in platform data, allow also providing the name of the external clock and use it through the clock framework. Signed-off-by: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] videobuf-dma-contig: add cache supportFederico Vaga2012-05-201-0/+10
| | | | | | | Signed-off-by: Federico Vaga <federico.vaga@gmail.com> Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com> Cc: Alan Cox <alan@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] ati_remote: add keymap for Medion X10 OR2x remotesAnssi Hannula2012-05-201-0/+1
| | | | | | | | | | | | Add another Medion X10 remote keymap. This is for the Medion OR2x remotes with the Windows MCE button. The receiver shipped with this remote has the same USB ID as the other Medion receivers, but the name is different and is therefore used to detect this variant. Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] s5p-fimc: Rework the video pipeline control functionsSylwester Nawrocki2012-05-201-0/+16
| | | | | | | | | | | | | | | | | | | | | There is getting more entities to manage within single video pipeline in newer SoCs. To simplify code put subdevs' pointer into an array rather than adding new member in struct fimc_pipeline for each subdev. This allows to easier handle subdev operations in proper order. Additionally walk graph in one direction only in fimc_pipeline_prepare() function to make sure we properly gather only media entities that below to single data pipeline. This avoids wrong initialization in case where, for example there are multiple active links from s5p-mipi-csis subdev output pad. struct fimc_pipeline declaration is moved to the driver's public header to allow other drivers to reuse the fimc-lite driver added in subsequent patches. 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] v4l2 framework: add support for the new dv_timings ioctlsHans Verkuil2012-05-202-0/+12
| | | | | | Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] V4L2: sh_mobile_ceu: manage lower 8bit busKuninori Morimoto2012-05-151-0/+1
| | | | | | | | | CAMCR::DTIF feild controls camera bus as upper8bit/16bit/lower8bit. This patch manages unmanaged lower 8bit bus Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] soc-camera: Support user-configurable line strideLaurent Pinchart2012-05-151-0/+4
| | | | | | | | | | | | | Add a capabilities field to the soc_camera_host structure to flag hosts that support user-configurable line strides. soc_camera_try_fmt() then passes the user-provided bytesperline and sizeimage format fields to such hosts, and expects the host to check (and fix if needed) the values. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> [g.liakhovetski@gmx.de: fix a typo in mx2_camera.c] Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] soc-camera: Add soc_mbus_image_sizeLaurent Pinchart2012-05-151-0/+2
| | | | | | | | | The function returns the minimum size of an image for a given number of bytes per line (as per the V4L2 specification), width and format. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] soc-camera: Add plane layout information to struct soc_mbus_pixelfmtLaurent Pinchart2012-05-151-0/+19
| | | | | | | | | | To compute the value of the v4l2_pix_format::bytesperline field, we need information about planes layout for planar formats. The new enum soc_mbus_layout conveys that information. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] V4L: soc-camera: (cosmetic) use a more explicit name for a host handlerGuennadi Liakhovetski2012-05-151-1/+1
| | | | | | | | | Use "enum_framesizes" instead of "enum_fsizes" to more precisely follow the name of the respective ioctl(). Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Reviewed-by: Sergio Aguirre <sergio.a.aguirre@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2-event: fix regression with initial event handlingHans Verkuil2012-05-151-1/+1
| | | | | | | | | | | | | | | | | | | | | If the V4L2_EVENT_SUB_FL_SEND_INITIAL was set, then the application expects to receive an initial event of the initial value of the control. However, commit c53c2549333b340e2662dc64ec81323476b69a97 that added the new v4l2_subscribed_event_ops introduced a regression: while the code still queued that initial event the __v4l2_event_queue_fh() function was modified to ignore such requests if sev->elems was 0 (meaning that the event subscription wasn't finished yet). And sev->elems was only set to a non-zero value after the add operation returned. This patch fixes this by passing the elems value to the add function. Then the add function can set it before queuing the initial event. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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