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* [media] V4L: add .g_std() core V4L2 subdevice operationGuennadi Liakhovetski2011-11-031-0/+1
| | | | | | | | | | | | VIDIOC_G_STD can return the current TV-norm to the user in one of two ways: if an .vidioc_g_std() ioctl operation is provided by the driver, it is called, otherwise the value ot the .current_norm field of struct video_device is returned. Since subdevice drivers currently have no access to struct video_device objects, the only way to provide this information to the user is by implementing a .g_std() method. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] V4L: dynamically allocate video_device nodes in subdevicesGuennadi Liakhovetski2011-11-031-2/+2
| | | | | | | | | | | Currently only very few drivers actually use video_device nodes, embedded in struct v4l2_subdev. Allocate these nodes dynamically for those drivers to save memory for the rest. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Tested-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] V4L: add media bus configuration subdev operationsGuennadi Liakhovetski2011-07-271-0/+10
| | | | | | | | | | | | | | Add media bus configuration types and two subdev operations to get supported mediabus configurations and to set a specific configuration. Subdevs can support several configurations, e.g., they can send video data on 1 or several lanes, can be configured to use a specific CSI-2 channel, in such cases subdevice drivers return bitmasks with all respective bits set. When a set-configuration operation is called, it has to specify a non-ambiguous configuration. Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: add g_std_output callback to V4L2 subdevTomasz Stanislawski2011-07-271-0/+4
| | | | | | | | | Callback is used to acquire current analog TV standard from a subdev. It is used to avoid keeping current standard in top-level driver. Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: add g_dv_preset callback to V4L2 subdevTomasz Stanislawski2011-07-271-0/+4
| | | | | | | | | Callback is used to acquire current digital video preset from a subdev. It is used to avoid keeping dv preset in top-level driver. Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: add g_tvnorms_output callback to V4L2 subdevTomasz Stanislawski2011-07-271-0/+4
| | | | | | | | | | Callback is used to acquire TV norms supported by a subdev. It is used to avoid having standards in top-level driver. Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2-event/ctrls/fh: allocate events per fh and per type instead of ↵Hans Verkuil2011-07-271-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | just per-fh The driver had to decide how many events to allocate when the v4l2_fh struct was created. It was possible to add more events afterwards, but there was no way to ensure that you wouldn't miss important events if the event queue would fill up for that filehandle. In addition, once there were no more free events, any new events were simply dropped on the floor. For the control event in particular this made life very difficult since control status/value changes could just be missed if the number of allocated events and the speed at which the application read events was too low to keep up with the number of generated events. The application would have no idea what the latest state was for a control since it could have missed the latest control change. So this patch makes some major changes in how events are allocated. Instead of allocating events per-filehandle they are now allocated when subscribing an event. So for that particular event type N events (determined by the driver) are allocated. Those events are reserved for that particular event type. This ensures that you will not miss events for a particular type altogether. In addition, if there are N events in use and a new event is raised, then the oldest event is dropped and the new one is added. So the latest event is always available. This can be further improved by adding the ability to merge the state of two events together, ensuring that no data is lost at all. This will be added in the next patch. This also makes it possible to allow the user to determine the number of events that will be allocated. This is not implemented at the moment, but would be trivial. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] tuner-core/v4l2-subdev: document that the type field has to be filled inHans Verkuil2011-07-071-0/+7
| | | | | | | | | | The tuner ops g_frequency, g_tuner and s_tuner require that the tuner type field is filled in. Document this. The tuner-core doc is based on a patch from Mauro Carvalho Chehab <mchehab@redhat.com>. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2-subdev.h: remove unused s_mode tuner opHans Verkuil2011-07-071-4/+1
| | | | | | | s_mode is no longer used, so remove it. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: Add subdev sensor g_skip_frames operationLaurent Pinchart2011-03-221-0/+4
| | | | | | | | | | Some buggy sensors generate corrupt frames when the stream is started. This new operation return the number of corrupt frames to skip when starting the stream. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: v4l2_subdev userspace crop APIAntti Koskipaa2011-03-221-0/+4
| | | | | | | | | | This patch adds the VIDIOC_SUBDEV_S_CROP and G_CROP ioctls to the userland API. CROPCAP is not implemented because it's redundant. Signed-off-by: Antti Koskipaa <akoskipa@gmail.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: v4l2_subdev userspace frame interval APILaurent Pinchart2011-03-221-0/+7
| | | | | | | | | | | | | | | The three new ioctl VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL, VIDIOC_SUBDEV_G_FRAME_INTERVAL and VIDIOC_SUBDEV_S_FRAME_INTERVAL can be used to enumerate and configure a subdev's frame rate from userspace. Two new video::g/s_frame_interval subdev operations are introduced to support those ioctls. The existing video::g/s_parm operations are deprecated and shouldn't be used anymore. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: v4l2_subdev userspace format APILaurent Pinchart2011-03-221-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a userspace API to get, set and enumerate the media format on a subdev pad. The format at the output of a subdev usually depends on the format at its input(s). The try format operation is thus not suitable for probing format at individual pads, as it can't modify the device state and thus can't remember the format tried at the input to compute the output format. To fix the problem, pass an extra argument to the get/set format operations to select the 'try' or 'active' format. The try format is used when probing the subdev. Setting the try format must not change the device configuration but can store data for later reuse. Data storage is provided at the file-handle level so applications probing the subdev concurently won't interfere with each other. The active format is used when configuring the subdev. It's identical to the format handled by the usual get/set operations. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com> Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: v4l2_subdev pad-level operationsLaurent Pinchart2011-03-221-0/+4
| | | | | | | | | | | | Add a v4l2_subdev_pad_ops structure for the operations that need to be performed at the pad level such as format-related operations. Pad format-related operations use v4l2_mbus_framefmt instead of v4l2_format. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: subdev: Add new file operationsLaurent Pinchart2011-03-221-0/+7
| | | | | | | | | | | V4L2 sub-devices store pad formats and crop settings in the file handle. To let drivers initialize those settings properly, add an open operation that is called when the subdev is opened as well as a corresponding close operation. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: Create v4l2 subdev file handle structureStanimir Varbanov2011-03-221-0/+29
| | | | | | | | | | | Used for storing subdev information per file handle and hold V4L2 file handle. Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com> Signed-off-by: Antti Koskipaa <akoskipa@gmail.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: Make v4l2_subdev inherit from media_entityLaurent Pinchart2011-03-221-0/+6
| | | | | | | | | | | | | | V4L2 subdevices are media entities. As such they need to inherit from (include) the media_entity structure. When registering/unregistering the subdevice, the media entity is automatically registered/unregistered. The entity is acquired on device open and released on device close. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: subdev: Events supportSakari Ailus2011-03-211-0/+10
| | | | | | | | | | | Provide v4l2_subdevs with v4l2_event support. Subdev drivers only need very little to support events. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: David Cohen <dacohen@gmail.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: subdev: Uninline the v4l2_subdev_init functionLaurent Pinchart2011-03-211-13/+2
| | | | | | | | The function isn't small or performance sensitive enough to be inlined. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: subdev: Add device node supportLaurent Pinchart2011-03-211-2/+12
| | | | | | | | | | | | | Create a device node named subdevX for every registered subdev. As the device node is registered before the subdev core::s_config function is called, return -EGAIN on open until initialization completes. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Vimarsh Zutshi <vimarsh.zutshi@gmail.com> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: subdev: Don't require core operationsLaurent Pinchart2011-03-211-2/+1
| | | | | | | | | | There's no reason to require subdevices to implement the core operations. Remove the check for non-NULL core operations when initializing the subdev. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] V4L: add enum_mbus_fsizes video operationQing Xu2011-03-211-0/+2
| | | | | | | | Add enum_mbus_fsizes V4L2 subdevice video operation. Signed-off-by: Qing Xu <qingx@marvell.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2-subdev: add (un)register internal opsHans Verkuil2011-01-191-0/+17
| | | | | | | | | | | | | | | | | | | Some subdevs need to call into the board code after they are registered and have a valid struct v4l2_device pointer. The s_config op was abused for this, but now that it is removed we need a cleaner way of solving this. So this patch adds a struct with internal ops that the v4l2 core can call. Currently only two ops exist: register and unregister. Subdevs can implement these to call the board code and pass it the v4l2_device pointer, which the board code can then use to get access to the struct that embeds the v4l2_device. It is expected that in the future open and close ops will also be added. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2-subdev: remove core.s_config and v4l2_i2c_new_subdev_cfg()Hans Verkuil2011-01-191-5/+1
| | | | | | | | | | | | | | | | The core.s_config op was meant for legacy drivers that needed to work with old pre-2.6.26 kernels. This is no longer relevant. Unfortunately, this op was incorrectly called from several drivers. Replace those occurences with proper i2c_board_info structs and call v4l2_i2c_new_subdev_board. After these changes v4l2_i2c_new_subdev_cfg() was no longer used, so remove that function as well. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: v4l: Add a v4l2_subdev host private data fieldLaurent Pinchart2010-10-211-4/+16
| | | | | | | | | | | | | The existing priv field stores subdev private data owned by the subdev driver. Host (bridge) drivers might need to store per-subdev host-specific data, such as a pointer to platform data. Add a v4l2_subdev host_priv field to store host-specific data, and rename the existing priv field to dev_priv. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: v4l2-subdev: remove obsolete enum/try/s/g_fmtHans Verkuil2010-10-211-4/+0
| | | | | | | These have now all been replaced by enum/try/s/g_mbus_fmt. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: v4l2: Add new control handling frameworkHans Verkuil2010-08-081-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a new framework to handle controls which makes life for driver developers much easier. Note that this patch moves some of the control support that used to be in v4l2-common.c to v4l2-ctrls.c. The tables were copied unchanged. The body of v4l2_ctrl_query_fill() was copied to a new v4l2_ctrl_fill() function in v4l2-ctrls.c. This new function doesn't use the v4l2_queryctrl struct anymore, which makes it more general. The remainder of v4l2-ctrls.c is all new. Highlights include: - No need to implement VIDIOC_QUERYCTRL, QUERYMENU, S_CTRL, G_CTRL, S_EXT_CTRLS, G_EXT_CTRLS or TRY_EXT_CTRLS in either bridge drivers or subdevs. New wrapper functions are provided that can just be plugged in. Once everything has been converted these wrapper functions can be removed as well. - When subdevices are added their controls can be automatically merged with the bridge driver's controls. - Most drivers just need to implement s_ctrl to set the controls. The framework handles the locking and tries to be as 'atomic' as possible. - Ready for the subdev device nodes: the same mechanism applies to subdevs and their device nodes as well. Sub-device drivers can make controls local, preventing them from being merged with bridge drivers. - Takes care of backwards compatibility handling of VIDIOC_S_CTRL and VIDIOC_G_CTRL. Handling of V4L2_CID_PRIVATE_BASE is fully transparent. CTRL_CLASS controls are automatically added. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: v4l2_subdev: Get rid of now unused IR pulse width definesAndy Walls2010-08-081-6/+1
| | | | | Signed-off-by: Andy Walls <awalls@md.metrocast.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: v4l2_subdev: Move interrupt_service_routine ptr to v4l2_subdev_core_opsAndy Walls2010-08-081-9/+7
| | | | | | | | | | | | | The CX2584x and related cores are multifunction subdevices with a number of internal blocks that act as interrupt sources. Move the v4L2_subdev interrupt_service_routine callback from v4l_subdev_ir_ops to v4l2_subdev_core_ops, as the video and audio blocks of a CX2584x and related cores can generate interrupts along with the IR block. This change also makes sense for other subdev's that generate interrupts and do not have an IR block. Signed-off-by: Andy Walls <awalls@md.metrocast.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: v4l2_subdev, cx23885: Differentiate IR carrier sense and I/O pin ↵Andy Walls2010-08-081-1/+4
| | | | | | | | | | | | | | | inversion There is a distinction on IR Tx for the CX2388[578] chips of carrier sense inversion (space is a carrier burst and mark is no burst) and I/O pin level inversion (0 is high output level, 1 is low output level). Allow the caller to set these parameters distinctly as v4l2_subdevice IR parameters. This permits the IR device to be configured and enabled without the IR Tx LED being on during idle/space time due to an external hardware level inversion Signed-off-by: Andy Walls <awalls@md.metrocast.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: v4l2_subdev: Add s_io_pin_config to v4l2_subdev_core_opsAndy Walls2010-08-081-0/+23
| | | | | | | | | | Add a method to v4l2_sudev_core_ops to allow bridge drivers to manage what signal pads/functions are routed out to multiplexed IO pins on a pin by pin basis. The interface also allows specifying initial output settings for pins and disabling an IO pin altogether. Signed-off-by: Andy Walls <awalls@md.metrocast.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: v4l2-subdev.h: fix enum_mbus_fmt prototypeHans Verkuil2010-06-011-1/+1
| | | | | | | | | | | enum_mbus_fmt received an index argument that was defined as an int instead of an unsigned int. This is now fixed. This had the knock-on effect that the index argument in the callback get_formats in soc_camera.h also had to be changed to unsigned int. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: v4l2-subdev.h: Add support for enum_dv_presetMats Randgaard2010-05-191-0/+2
| | | | | | | | | The op enum_dv_preset was missing in this header but is needed by subdev drivers with DV functionality. Signed-off-by: Mats Randgaard <mats.randgaard@tandberg.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: v4l: add new subdev vbi ops to handle raw and sliced vbiHans Verkuil2010-05-191-0/+9
| | | | | | | | | | | | | | Currently raw and sliced vbi is setup using the video g/s_fmt ops. However, we want to split off the vbi formatting into separate ops so the first step is to create those new ops. The next step will be to convert subdev drivers and bridge drivers to use the new ops. And in the final step we can start converting the video g/s_fmt ops to the new (and more appropriate) mediabus format ops. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: v4l: move vbi-specific video ops to a new vbi ops structHans Verkuil2010-05-191-26/+31
| | | | | | | | | Only a relatively small number of video receivers and transmitters actually support VBI. So start moving the vbi specific ops to an ops struct of their own. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: Add SPI support to V4L2Dmitri Belimov2010-05-181-0/+2
| | | | | | | | | Add support SPI bus to v4l2. Useful for control some device with SPI bus like hardware MPEG2 encoders and etc. Signed-off-by: Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: cx25840, v4l2-subdev, ivtv, pvrusb2: Fix ivtv/cx25840 tinny audioAndy Walls2010-02-261-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change attempts to fix the ivtv tinny audio problem by keeping digitizer to encoder audio clocks running, while disabling the video clocks as needed to avoid unpredictable PCI bus hangs. To accomplish this, for the cx25840 module enabling of audio streaming had to be separated from enabling video streaming, requiring an additional v4l2_subdev_audio_op and calls to this new op in the pvrusb2 and ivtv drivers. The cx231xx and cx23885 driver use the cx25840 module for affecting only video on s_stream calls, so those drivers needed no change. The CX23418 hardware does not exhibit either the tinny audio problem nor the PCI bus hang, so the cx18 driver did not need corresponding changes. CX2341[56] based cards that are not using the CX2584x family of chips do not seem to be affected by the tinny audio problem, and this change should not affect how they are configured. It will delay their first capture by starting by another 300 msec though. Many thanks go to Argus <pthorn-ivtvd@styx2002.no-ip.org> and Martin Dauskardt <martin.dauskardt@gmx.de> whose persistent testing and investigation of this problem will hopefully fix this problem once and for all for many ivtv users. Reported-by: Martin Dauskardt <martin.dauskardt@gmx.de> Reported-by: Argus <pthorn-ivtvd@styx2002.no-ip.org> Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13658): v4l: add a media-bus API for configuring v4l2 subdev pixel ↵Guennadi Liakhovetski2009-12-161-1/+17
| | | | | | | | | | | | | | | | | | | | | | | and frame formats Video subdevices, like cameras, decoders, connect to video bridges over specialised busses. Data is being transferred over these busses in various formats, which only loosely correspond to fourcc codes, describing how video data is stored in RAM. This is not a one-to-one correspondence, therefore we cannot use fourcc codes to configure subdevice output data formats. This patch adds codes for several such on-the-bus formats and an API, similar to the familiar .s_fmt(), .g_fmt(), .try_fmt(), .enum_fmt() API for configuring those codes. After all users of the old API in struct v4l2_subdev_video_ops are converted, it will be removed. Also add helper routines to support generic pass-through mode for the soc-camera framework. create mode 100644 drivers/media/video/soc_mediabus.c create mode 100644 include/media/soc_mediabus.h create mode 100644 include/media/v4l2-mediabus.h Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13644): v4l: add new v4l2-subdev sensor operations, use ↵Guennadi Liakhovetski2009-12-161-5/+17
| | | | | | | | | | | | | | g_skip_top_lines in soc-camera Introduce new v4l2-subdev sensor operations, move .enum_framesizes() and .enum_frameintervals() methods to it, add a new .g_skip_top_lines() method and switch soc-camera to use it instead of .y_skip_top soc_camera_device member, which can now be removed. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl> Reviewed-by: Sergio Aguirre <saaguirre@ti.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13571): v4l: Adding Digital Video Timings APIsMuralidharan Karicheri2009-12-161-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the above APIs to the v4l2 core. This is based on version v1.2 of the RFC titled "V4L - Support for video timings at the input/output interface" Following new ioctls are added:- - VIDIOC_ENUM_DV_PRESETS - VIDIOC_S_DV_PRESET - VIDIOC_G_DV_PRESET - VIDIOC_QUERY_DV_PRESET - VIDIOC_S_DV_TIMINGS - VIDIOC_G_DV_TIMINGS Please refer to the RFC for the details. This code was tested using vpfe capture driver on TI's DM365. Following is the test configuration used :- Blu-Ray HD DVD source -> TVP7002 -> DM365 (VPFE) ->DDR A draft version of the TVP7002 driver (currently being reviewed in the mailing list) was used that supports V4L2_DV_1080I60 & V4L2_DV_720P60 presets. A loopback video capture application was used for testing these APIs. This calls following IOCTLS :- - verify the new v4l2_input capabilities flag added - Enumerate available presets using VIDIOC_ENUM_DV_PRESETS - Set one of the supported preset using VIDIOC_S_DV_PRESET - Get current preset using VIDIOC_G_DV_PRESET - Detect current preset using VIDIOC_QUERY_DV_PRESET - Using stub functions in tvp7002, verify VIDIOC_S_DV_TIMINGS and VIDIOC_G_DV_TIMINGS ioctls are received at the sub device. - Tested on 64bit platform by Hans Verkuil Signed-off-by: Muralidharan Karicheri <m-karicheri2@ti.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Reviewed-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13477): v4l2-subdev: remove unnecessary checkHans Verkuil2009-12-051-1/+1
| | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13238): v4l2_subdev: rename tuner s_standby operation to core s_powerLaurent Pinchart2009-12-051-3/+4
| | | | | | | | | | | | | | | | | Upcoming I2C v4l2_subdev drivers need a way to control the subdevice power state from the core. This use case is already partially covered by the tuner s_standby operation, but no way to explicitly come back from the standby state is available. Rename the tuner s_standby operation to core s_power, and fix tuner drivers accordingly. The tuner core will call s_power(0) instead of s_standby(). No explicit call to s_power(1) is required for tuners as they are supposed to wake up from standby automatically. [mchehab@redhat.com: CodingStyle fix] Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13096): v4l2-subdev: Add v4l2_subdev_ir_ops and IR notify defines ↵Andy Walls2009-12-051-0/+94
| | | | | | | | | | | for v4l2_device Add v4l2_subdev_ir_ops and IR notify defines for v4l2_device. This change is specifically needed at this time to support the integrated IR controller in the CX2388[58] chips. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12547): v4l2-subdev.h: Add g/s_modulator callbacks to subdev apiEduardo Valentin2009-09-121-0/+2
| | | | | | Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12158): v4l: add cropping prototypes to struct v4l2_subdev_video_opsGuennadi Liakhovetski2009-09-121-0/+3
| | | | | | | | Add g_crop, s_crop and cropcap methods to video v4l2-subdev operations. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12125): v4l2: add new s_config subdev ops and ↵Hans Verkuil2009-06-231-1/+6
| | | | | | | | | | | | | | | | | | | | v4l2_i2c_new_subdev_cfg/board calls Add a new s_config core ops call: this is called with the irq and platform data to be used to initialize the subdev. Added new v4l2_i2c_new_subdev_cfg and v4l2_i2c_new_subdev_board calls that allows you to pass these new arguments. The existing v4l2_i2c_new_subdev functions were modified to also call s_config. In the future the existing v4l2_i2c_new_subdev functions will be replaced by a single v4l2_i2c_new_subdev function similar to v4l2_i2c_new_subdev_cfg but without the irq and platform_data arguments. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (11673): v4l2-device: unregister i2c_clients when unregistering the ↵Hans Verkuil2009-06-161-0/+5
| | | | | | | | | | | | | v4l2_device. Until now I relied on i2c_del_adapter to unregister the i2c_clients for me, however, if the i2c bus is a platform bus then it is never deleted. So instead I need to unregister i2c clients when unregistering the v4l2_device. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (11380): v4l2-subdev: change s_routing prototypeHans Verkuil2009-04-061-3/+4
| | | | | | | | | It is no longer needed to use a struct pointer as argument, since v4l2_subdev doesn't require that ioctl-like approach anymore. Instead just pass the input, output and config (new!) arguments directly. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (11377): v4l: increase version numbers of drivers converted to ↵Hans Verkuil2009-04-061-9/+3
| | | | | | | | | | | | | | v4l2_subdev. With all the v4l2_subdev changes that were made to these drivers it is a good idea to increase the version number of each driver. It's just the patch level that is increased, except for the zoran and saa7146 drivers where the minor number was increased due to the more substantial changes that were made to those two drivers. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (11370): v4l2-subdev: move s_std from tuner to core.Hans Verkuil2009-04-061-1/+1
| | | | | | | | | s_std didn't belong in the tuner ops. Stricly speaking it should be part of the video ops, but it is used by audio and tuner devices as well, so it is more efficient to make it part of the core ops. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
generated by cgit v1.1 at 2024-12-26 17:15:47 +0000