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* V4L/DVB: soc-camera: add runtime pm support for subdevicesMauro Carvalho Chehab2010-05-181-1/+17
| | | | | | | | | | | | To save power soc-camera powers subdevices down, when they are not in use, if this is supported by the platform. However, the V4L standard dictates, that video nodes shall preserve configuration between uses. This requires runtime power management, which is implemented by this patch. It allows subdevice drivers to specify their runtime power-management methods, by assigning a type to the video device. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* soc-camera: add support for VIDIOC_S_PARM and VIDIOC_G_PARM ioctlsGuennadi Liakhovetski2010-02-261-0/+28
| | | | | | | | Just pass VIDIOC_S_PARM and VIDIOC_G_PARM down to host drivers. So far no special handling in soc-camera core. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* soc-camera: return -ENODEV if sensor is missingMagnus Damm2010-02-261-6/+2
| | | | | | | | | Update the soc-camera i2c code to return -ENODEV if a camera sensor is missing instead of -ENOMEM. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13659): soc-camera: convert to the new mediabus APIGuennadi Liakhovetski2009-12-161-35/+43
| | | | | | | | | | Convert soc-camera core and all soc-camera drivers to the new mediabus API. This also takes soc-camera client drivers one step closer to also be usable with generic v4l2-subdev host drivers. 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 (13645): soc-camera: fix multi-line comment coding styleGuennadi Liakhovetski2009-12-161-8/+16
| | | | | Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13556): v4l: Remove unneeded video_device::minor assignmentsLaurent Pinchart2009-12-161-3/+1
| | | | | | | | | | | | | Now that the video_device registration is tested using video_is_registered(), drivers don't need to initialize the video_device::minor field to -1 anymore. Remove those unneeded assignments. [mchehab.redhat.com: removed tm6000 changes as tm6000 is not ready yet for submission even on staging] Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13344): soc-camera: properly initialise the device object when reusingGuennadi Liakhovetski2009-11-261-5/+12
| | | | | | | | | | Commit ef373189f62413803b7b816c972fc154c488cdc0 "fix use-after-free Oops, resulting from a driver-core API change" fixed the Oops, but didn't correct missing device object initialisation. This patch makes unloading and reloading of soc-camera host- and client-drivers possible again. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (13132): fix use-after-free Oops, resulting from a driver-core API ↵Guennadi Liakhovetski2009-11-071-7/+9
| | | | | | | | | | | change Commit b4028437876866aba4747a655ede00f892089e14 has broken again re-use of device objects across device_register() / device_unregister() cycles. Fix soc-camera by nullifying the struct after device_unregister(). Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12580): soc-camera: remove now unneeded subdevice group ID assignmentsGuennadi Liakhovetski2009-09-191-1/+0
| | | | | | | | | Since we are not using v4l2_device_call_* calls any more, we don't need to initialise subdevice .grp_id any more. This also fixes compiler warnings on 64-bit platforms. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12536): soc-camera: remove .gain and .exposure struct ↵Guennadi Liakhovetski2009-09-191-22/+11
| | | | | | | | | | soc_camera_device members This makes the soc-camera interface for V4L2 subdevices thinner yet. Handle gain and exposure internally in each driver just like all other controls. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12535): soc-camera: remove .init() and .release() methods from ↵Guennadi Liakhovetski2009-09-191-11/+0
| | | | | | | | | | struct soc_camera_ops Remove unneeded soc-camera operations, this also makes the soc-camera API to v4l2 subdevices thinner. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12534): soc-camera: V4L2 API compliant scaling (S_FMT) and cropping ↵Guennadi Liakhovetski2009-09-191-55/+75
| | | | | | | | | | | | (S_CROP) The initial soc-camera scaling and cropping implementation turned out to be incompliant with the V4L2 API, e.g., it expected the user to specify cropping in output window pixels, instead of input window pixels. This patch converts the soc-camera core and all drivers to comply with the standard. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12532): soc-camera: Use camera device object for core outputGuennadi Liakhovetski2009-09-191-5/+3
| | | | | Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12530): soc-camera: switch to using v4l2_subdev_call()Guennadi Liakhovetski2009-09-191-14/+16
| | | | | | | | Use v4l2_subdev_call() instead of v4l2_device_call_until_err() in all host drivers and in soc-camera core. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12529): soc-camera: switch to s_crop v4l2-subdev video operationGuennadi Liakhovetski2009-09-191-2/+2
| | | | | | | | | | Remove set_crop soc-camera device method and switch to s_crop from v4l2-subdev video operations. Also extend non-i2c drivers to also hold a pointer to their v4l2-subdev instance in control device driver-data, i.e., in dev_get_drvdata((struct device *)to_soc_camera_control(icd)) Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12525): soc-camera: prohibit geometry change with initialised buffersGuennadi Liakhovetski2009-09-191-2/+12
| | | | | | | | | | | | Prohibit S_FMT and S_CROP with a different window width or height after video buffer initialisation. This simplifies the work to be done in specific host and client drivers, and it doesn't seem to make much sense to allow these changes. We do however allow S_CROP with equal width and height to just move the window, this doesn't affect video buffer management and is usually easy enough to implement. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12524): soc-camera: S_CROP V4L2 API compliance fixGuennadi Liakhovetski2009-09-191-16/+23
| | | | | | | | V4L2 API mandates, that drivers do not update the argument of the S_CROP ioctl() with the actual geometry. Comply. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12521): soc-camera: use .s_std() from struct v4l2_subdev_core_opsGuennadi Liakhovetski2009-09-191-5/+2
| | | | | | | | Remove .set_std() method from struct soc_camera_ops, use .s_std() from struct v4l2_subdev_core_ops instead. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12519): soc-camera: put pixel format initialisation back in probe, ↵Guennadi Liakhovetski2009-09-191-15/+35
| | | | | | | | | | | | | add .put_formats() The move of format translation initialisation into soc_camera_open() was temporary for the soc-camera as platform driver intermediate step, put it back into soc_camera_probe(). Also add a .put_formats() method to soc_camera_host_ops to free any resources host driver might have allocated in .get_formats(). Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12515): soc-camera: use struct v4l2_rect in struct soc_camera_deviceGuennadi Liakhovetski2009-09-191-26/+36
| | | | | | | | Switch to using struct v4l2_rect in struct soc_camera_device for uniformity and simplicity. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12513): soc-camera: add support for camera-host controlsGuennadi Liakhovetski2009-09-191-0/+24
| | | | | | | | Until now soc-camera only supported client (sensor) controls. This patch enables camera-host drivers to implement their own controls too. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12510): soc-camera: (partially) convert to v4l2-(sub)dev APIGuennadi Liakhovetski2009-09-191-102/+148
| | | | | | | | | | | | Convert the soc-camera framework to use the v4l2-(sub)dev API. Start using v4l2-subdev operations. Only a part of the interface between the soc_camera core, soc_camera host drivers on one side and soc_camera device drivers on the other side is replaced so far. The rest of the interface will be replaced in incremental steps, and will require extensions and, possibly, modifications to the v4l2-subdev code. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12506): soc-camera: convert to platform deviceGuennadi Liakhovetski2009-09-191-219/+212
| | | | | | | | | | Convert soc-camera core and all drivers to platform device API. We already converted platforms to register a platform device for each soc-camera client, now we remove the compatibility code and switch completely to the new scheme. This is a preparatory step for the v4l2-subdev conversion. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12504): soc-camera: prepare soc_camera_platform.c and its users for ↵Guennadi Liakhovetski2009-09-191-15/+46
| | | | | | | | | | | | | conversion soc_camera_platform.c is only used by y SuperH ap325rxa board. This patch converts soc_camera_platform.c and its users for the soc-camera platform- device conversion and also extends soc-camera core to handle non-I2C cameras. Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12160): soc-camera: fix missing clean up on error pathGuennadi Liakhovetski2009-07-051-3/+7
| | | | | | | | | If soc_camera_init_user_formats() fails in soc_camera_probe(), we have to call client's .remove() method to unregister the video device. Reported-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (12159): soc_camera: Fix debug output of supported formats countStefan Herbrechtsmeier2009-07-051-1/+1
| | | | | | | | | The supported formats count must be set to 0 after debug output right before the second pass. Signed-off-by: Stefan Herbrechtsmeier <hbmeier@hni.uni-paderborn.de> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (11992): Add missing __devexit_p()Jean Delvare2009-06-171-1/+1
| | | | | | | | | Add missing __devexit_p() to several drivers. Also add a few missing __init, __devinit and __exit markers. These errors could result in build failures depending on the kernel configuration. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (11705): soc-camera: prepare for the platform driver conversionGuennadi Liakhovetski2009-06-161-5/+66
| | | | | | | | | Add a platform driver to soc_camera.c. This way we preserve backwards compatibility with existing platforms and can start converting them one by one to the new platform-device soc-camera interface. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (11609): soc-camera: remove an extra device generation from struct ↵Guennadi Liakhovetski2009-06-161-25/+10
| | | | | | | | | | soc_camera_host Make camera devices direct children of host platform devices, move the inheritance management into the soc_camera.c core driver. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (11325): soc-camera: fix breakage caused by ↵Guennadi Liakhovetski2009-04-071-2/+4
| | | | | | | | | | | | | 1fa5ae857bb14f6046205171d98506d8112dd74e soc-camera re-uses struct devices multiple times in calls to device_register(), therefore it has to reset the embedded struct kobject to avoid the "tried to init an initialized object" error, which then also erases its name. Now with the transition to kobject's name for device names, we have to re-initialise the name before each call to device_register(). Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (11027): soc-camera: configure drivers with a default format at ↵Guennadi Liakhovetski2009-03-301-16/+23
| | | | | | | | | | | | | | | | | probe time Currently soc-camera doesn't set up any image format without an explicit S_FMT. According to the API this should be supported, for example, capture-example.c from v4l2-apps by default doesn't issue an S_FMT. This patch moves negotiating of available host-camera format translations to probe() time, and restores the state from the last close() on the next open(). This is needed for some drivers, which power down or reset hardware after the last user closes the interface. This patch also has a nice side-effect of avoiding multiple allocation anf freeing of format translation tables. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (11025): soc-camera: configure drivers with a default format on openGuennadi Liakhovetski2009-03-301-32/+68
| | | | | | | | | | Currently soc-camera doesn't set up any image format without an explicit S_FMT. It seems this should be supported, since, for example, capture-example.c from v4l2-apps by default doesn't issue an S_FMT. This patch configures a default image format on open(). Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (11024): soc-camera: separate S_FMT and S_CROP operationsGuennadi Liakhovetski2009-03-301-12/+8
| | | | | | | | As host and camera drivers become more complex, differences between S_FMT and S_CROP functionality grow, this patch separates them. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (10141): v4l2: debugging API changed to match against driver name ↵Hans Verkuil2009-01-021-3/+3
| | | | | | | | | | | | | | | | instead of ID. Since the i2c driver ID will be removed in the near future we have to modify the v4l2 debugging API to use the driver name instead of driver ID. Note that this API is not used in applications other than v4l2-dbg.cpp as it is for debugging and testing only. Should anyone use the old VIDIOC_G_CHIP_IDENT, then this will be logged with a warning that it is deprecated and will be removed in 2.6.30. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (10135): v4l2: introduce v4l2_file_operations.Hans Verkuil2009-01-021-4/+3
| | | | | | | | | | | | | | | | Introduce a struct v4l2_file_operations for v4l2 drivers. Remove the unnecessary inode argument. Move compat32 handling (and llseek) into the v4l2-dev core: this is now handled in the v4l2 core and no longer in the drivers themselves. Note that this changeset reverts an earlier patch that changed the return type of__video_ioctl2 from int to long. This change will be reinstated later in a much improved version. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (10090): soc-camera: let drivers decide upon supported field valuesGuennadi Liakhovetski2008-12-301-18/+1
| | | | | | | | sh_mobile_ceu_camera.c is already prepared to support interlaced format, this patch moves the choice of a field type down to host and / or camera drivers. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (10087): Add new enum_input function on soc_cameraKuninori Morimoto2008-12-301-4/+13
| | | | | | | | This patch presents new method to be able to select V4L2 input type Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (10086): Add new set_std function on soc_cameraKuninori Morimoto2008-12-301-1/+8
| | | | | | | | This patch presents new method to be able to check v4l2_std_id Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (10083): soc-camera: unify locking, play nicer with videobuf lockingGuennadi Liakhovetski2008-12-301-16/+83
| | | | | | | | Move mutex from host drivers to camera device object, take into account videobuf locking. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (10080): soc-camera: readability improvements, more strict ↵Guennadi Liakhovetski2008-12-301-31/+43
| | | | | | | | | | | operations checks Simplify multiple drivers by replacing f->fmt.pix.* with a single pointer dereference, merge some needlessly broken lines, verify host and camera operations pointers on registration. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (10072): soc-camera: Add signal inversion flags to be used by camera ↵Guennadi Liakhovetski2008-12-301-0/+34
| | | | | | | | | | | | drivers As reported by Antonio Ospite <ospite@studenti.unina.it> two platforms with a mt9m111 camera require opposite pixel clock polarity, which means one of them inverts it. This patch adds support for inversion flags and switches all available camera drivers to using them. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (9790): soc-camera: pixel format negotiation - core supportGuennadi Liakhovetski2008-12-301-12/+81
| | | | | | | | | | | | | | | Allocate and fill a list of formats, supported by this specific camera-host combination. Use it for format enumeration. Take care to stay backwards-compatible. Camera hosts rely on sensor formats available, as well as host specific translations. We add a structure so that hosts can define a translation table and use it for format check and setup. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (9788): soc-camera: simplify namingGuennadi Liakhovetski2008-12-301-3/+3
| | | | | | | | | | We anyway don't follow the s_fmt_vid_cap / g_fmt_vid_cap / try_fmt_vid_cap naming, and soc-camera is so far only about video capture, let's simplify operation names a bit further. set_fmt_cap / try_fmt_cap wasn't a very good choice too. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (9787): soc-camera: let camera host drivers decide upon pixel formatGuennadi Liakhovetski2008-12-301-36/+22
| | | | | | | | | | | | | Pixel format requested by the user is not necessarily the same, as what a sensor driver provides. There are situations, when a camera host driver provides the required format, but requires a different format from the sensor. Further, the list of formats, supported by sensors is pretty static and can be pretty good described with a constant list of structures. Whereas decisions, made by camera host drivers to support requested formats can be quite complex, therefore it is better to let the host driver do the work. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (9786): soc-camera: formatting fixesGuennadi Liakhovetski2008-12-301-9/+7
| | | | | | | Minor formatting fixes Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (9785): soc-camera: merge .try_bus_param() into .try_fmt_cap()Guennadi Liakhovetski2008-12-301-5/+0
| | | | | | | | | .try_bus_param() method from struct soc_camera_host_ops is only called at one location immediately before .try_fmt_cap(), there is no value in keeping these two methods separate, merge them. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (9521): V4L: struct device - replace bus_id with dev_name(), ↵Kay Sievers2008-12-291-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dev_set_name() This patch is part of a larger patch series which will remove the "char bus_id[20]" name string from struct device. The device name is managed in the kobject anyway, and without any size limitation, and just needlessly copied into "struct device". To set and read the device name dev_name(dev) and dev_set_name(dev) must be used. If your code uses static kobjects, which it shouldn't do, "const char *init_name" can be used to statically provide the name the registered device should have. At registration time, the init_name field is cleared, to enforce the use of dev_name(dev) to access the device name at a later time. We need to get rid of all occurrences of bus_id in the entire tree to be able to enable the new interface. Please apply this patch, and possibly convert any remaining remaining occurrences of bus_id. We want to submit a patch to -next, which will remove bus_id from "struct device", to find the remaining pieces to convert, and finally switch over to the new api, which will remove the 20 bytes array and does no longer have a size limitation. Thanks, Kay Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8610): Add suspend/resume capabilities to soc_camera.Robert Jarzmik2008-08-061-0/+26
| | | | | | | | | | | | | Add suspend/resume hooks to call soc operation specific suspend and resume functions. This ensures the camera chip has been previously resumed, as well as the camera bus. These hooks in camera chip drivers should save/restore chip context between suspend and resume time. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (8523): v4l2-dev: remove unused type and type2 field from video_deviceHans Verkuil2008-07-271-1/+0
| | | | | | | | | The type and type2 fields were unused and so could be removed. Instead add a vfl_type field that contains the type of the video device. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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