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* [media] tea575x-tuner: mark VIDIOC_S_HW_FREQ_SEEK as an invalid ioctlHans Verkuil2012-05-141-0/+3
| | | | | | | | | | | | | | | The tea575x-tuner framework can support the VIDIOC_S_HW_FREQ_SEEK for only some of the tea575x-based boards. Mark this ioctl as invalid if the board doesn't support it. This fixes an issue with S_HW_FREQ_SEEK in combination with priority handling: since the priority check is done first it could return -EBUSY, even though calling the S_HW_FREQ_SEEK ioctl would return -ENOTTY. It should always return ENOTTY in such a case. 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>
* [media] v4l2-dev/ioctl: determine the valid ioctls upfrontHans Verkuil2012-05-143-276/+296
| | | | | | | | | | | | | | | | | Rather than testing whether an ioctl is implemented in the driver or not every time the ioctl is called, do it upfront when the device is registered. This also allows a driver to disable certain ioctls based on the capabilities of the detected board, something you can't do today without creating separate v4l2_ioctl_ops structs for each new variation. For the most part it is pretty straightforward, but for control ioctls a flag is needed since it is possible that you have per-filehandle controls, and that can't be determined upfront of course. 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>
* [media] v4l2-dev: make it possible to skip locking for selected ioctlsHans Verkuil2012-05-144-93/+148
| | | | | | | | | | | | | | | | | | | | | | | | Using the V4L2 core lock is a very robust method that is usually very good at doing the right thing. But some drivers, particularly USB drivers, may want to prevent the core from taking the lock for specific ioctls, particularly buffer queuing ioctls. The reason is that certain commands like S_CTRL can take a long time to process over USB and all the time the core has the lock, preventing VIDIOC_DQBUF from proceeding, even though a frame may be ready in the queue. This introduces unwanted latency. Since the buffer queuing commands often have their own internal lock it is often not necessary to take the core lock. Drivers can now say that they don't want the core to take the lock for specific ioctls. As it is a specific opt-out it makes it clear to the reviewer that those ioctls will need more care when reviewing. 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>
* [media] smiapp: Add driverSakari Ailus2012-05-1417-0/+4699
| | | | | | | | | | | | | | | Add driver for SMIA++/SMIA image sensors. The driver exposes the sensor as three subdevs, pixel array, binner and scaler --- in case the device has a scaler. Currently it relies on the board code for external clock handling. There is no fast way out of this dependency before the ISP drivers (omap3isp) among others will be able to export that clock through the clock framework instead. Signed-off-by: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] smiapp: Generic SMIA++/SMIA PLL calculatorSakari Ailus2012-05-144-0/+525
| | | | | | | | | | Calculate PLL configuration based on input data: sensor configuration, board properties and sensor-specific limits. [mchehab@redhat.com: Fix a Kconfig conflict affecting APTINA_PLL] Signed-off-by: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] omap3isp: Move CCDC link validation to ccdc_link_validate()Sakari Ailus2012-05-142-84/+76
| | | | | | | | | | Perform CCDC link validation in ccdc_link_validate() instead of isp_video_validate_pipeline(). Also perform maximum data rate check in isp_video_check_external_subdevs(). Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] omap3isp: Default link validation for ccp2, csi2, preview and resizerSakari Ailus2012-05-144-0/+4
| | | | | | | | | | Use default link validation for ccp2, csi2, preview and resizer. On ccp2, csi2 and ccdc we also collect information on external subdevs as one may be connected to those entities. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] omap3isp: Use external rate instead of vpcfgSakari Ailus2012-05-145-30/+3
| | | | | | | | | Access pipe->external_rate instead of isp_ccdc.vpcfg.pixelclk. Also remove means to set the value for isp_ccdc_vpcfg.pixelclk. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] omap3isp: Introduce isp_video_check_external_subdevs()Sakari Ailus2012-05-141-0/+79
| | | | | | | | | | | isp_video_check_external_subdevs() will retrieve external subdev's bits-per-pixel and pixel rate for the use of other ISP subdevs at streamon time. isp_video_check_external_subdevs() is called after pipeline validation. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] omap3isp: Add information on external subdev to struct isp_pipelineSakari Ailus2012-05-141-0/+3
| | | | | | | | | Add pointer to external subdev, pixel rate of the external subdev and bpp of the format to struct isp_pipeline. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] omap3isp: Refactor collecting information on entities in pipelineSakari Ailus2012-05-141-29/+32
| | | | | | | | | | Collect information on entities in pipeline in isp_video_far_end(), outside pipeline validation. As this causes the function to have side effects, rename the function accordingly. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] omap3isp: Add lane configuration to platform dataSakari Ailus2012-05-142-13/+27
| | | | | | | | | Add lane configuration (order of clock and data lane) to platform data on both CCP2 and CSI-2. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] omap3isp: Assume media_entity_pipeline_start may failSakari Ailus2012-05-141-24/+28
| | | | | | | | | Since media_entity_pipeline_start() now does link validation, it may actually fail. Perform the error handling. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] omap3isp: Move setting constaints above media_entity_pipeline_startSakari Ailus2012-05-141-6/+7
| | | | | | | | | | The clock rate for l3_ick will soon be read during pipeline validation which is now part of media_entity_pipeline_start(). For that reason we set constraints earlier on. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] omap3isp: Move definitions required by board code under include/mediaSakari Ailus2012-05-142-4/+4
| | | | | | | | | XCLK definitions are often required by the board code. Move them to public include file. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] omap3isp: Support additional in-memory compressed bayer formatsSakari Ailus2012-05-141-0/+13
| | | | | | | | This also prevents accessing NULL pointer in csi2_try_format(). Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: Allow changing control handler lockSakari Ailus2012-05-144-28/+32
| | | | | | | | | Allow choosing the lock used by the control handler. This may be handy sometimes when a driver providing multiple subdevs does not want to use several locks to serialise its functions. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: Implement v4l2_subdev_link_validate()Sakari Ailus2012-05-143-0/+88
| | | | | | | | | | v4l2_subdev_link_validate() is the default op for validating a link. In V4L2 subdev context, it is used to call a pad op which performs the proper link check without much extra work. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: Improve sub-device documentation for pad opsSakari Ailus2012-05-141-0/+9
| | | | | | | | | Document that format related configuration is done through pad ops in case the driver does use the media framework. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] media: Add link_validate() op to check links to the sink padSakari Ailus2012-05-143-4/+77
| | | | | | | | | | | The purpose of the link_validate() op is to allow an entity driver to ensure that the properties of the pads at the both ends of the link are suitable for starting the pipeline. link_validate is called on sink pads on active links which belong to the active part of the graph. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: Add DPCM compressed raw bayer pixel formatsSakari Ailus2012-05-144-6/+34
| | | | | | | | Add three other colour orders for 10-bit to 8-bit DPCM compressed raw bayer pixel formats. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: Document raw bayer 4CC codesSakari Ailus2012-05-141-0/+32
| | | | | | | | Document guidelines how 4CC codes should be named. Only raw bayer is included currently. Other formats should be documented later on. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: Image processing control classSakari Ailus2012-05-144-1/+109
| | | | | | | | | Add control class for image processing controls. The control class deals with controls processing image, for example digital gain or noise filtering, which can be present in any part of the pipeline. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: Image source control classSakari Ailus2012-05-144-0/+108
| | | | | | | | | Add image source control class. This control class is intended to contain low level controls which deal with control of the image capture process --- the A/D converter in image sensors, for example. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2: use __u32 rather than enums in ioctl() structsSakari Ailus2012-05-1415-66/+75
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | V4L2 uses the enum type in IOCTL arguments in IOCTLs that were defined until the use of enum was considered less than ideal. Recently Rémi Denis-Courmont brought up the issue by proposing a patch to convert the enums to unsigned: <URL:http://www.spinics.net/lists/linux-media/msg46167.html> This sparked a long discussion where another solution to the issue was proposed: two sets of IOCTL structures, one with __u32 and the other with enums, and conversion code between the two: <URL:http://www.spinics.net/lists/linux-media/msg47168.html> Both approaches implement a complete solution that resolves the problem. The first one is simple but requires assuming enums and __u32 are the same in size (so we won't break the ABI) while the second one is more complex and less clean but does not require making that assumption. The issue boils down to whether enums are fundamentally different from __u32 or not, and can the former be substituted by the latter. During the discussion it was concluded that the __u32 has the same size as enums on all archs Linux is supported: it has not been shown that replacing those enums in IOCTL arguments would break neither source or binary compatibility. If no such reason is found, just replacing the enums with __u32s is the way to go. This is what this patch does. This patch is slightly different from Remi's first RFC (link above): it uses __u32 instead of unsigned and also changes the arguments of VIDIOC_G_PRIORITY and VIDIOC_S_PRIORITY. Signed-off-by: Rémi Denis-Courmont <remi@remlab.net> Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] media: videobuf2-dma-contig: quiet sparse noise about plain integer ↵H Hartley Sweeten2012-05-081-1/+1
| | | | | | | | | | | | | | | | | | as NULL pointer The function vb2_dma_contig_vaddr returns a void * not an integer. Quiets the sparse noise: warning: Using plain integer as NULL pointer Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Pawel Osciak <pawel@osciak.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] media: videobuf2-dma-contig: include header for exported symbolsH Hartley Sweeten2012-05-081-0/+1
| | | | | | | | | | | | | | | | Include the header to pickup the definitions of the exported symbols. Quiets the following sparse warnings: warning: symbol 'vb2_dma_contig_memops' was not declared. Should it be static? warning: symbol 'vb2_dma_contig_init_ctx' was not declared. Should it be static? warning: symbol 'vb2_dma_contig_cleanup_ctx' was not declared. Should it be static? Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Pawel Osciak <pawel@osciak.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] as3645a: move relevant code under __devinit/__devexitAndy Shevchenko2012-05-081-5/+5
| | | | | | | | | | | | There is no needs to keep .remove under .exit.text. This driver is for a standalone chip that could be on any board and connected to any i2c bus. At the same time we don't need to keep the as3645a_probe() after initializing the device. Therefore we mark it and relevant functions with __devinit tag. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l: aptina-pll: Round up minimum multiplier factor value properlyLaurent Pinchart2012-05-081-3/+2
| | | | | | | | | The mf_low value must be a multiple of mf_inc. Round it up to the nearest mf_inc multiple after computing 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] omap3isp: resizer: Replace the crop API by the selection APILaurent Pinchart2012-05-081-50/+88
| | | | | | | | Support for the legacy crop API is emulated in the subdev core. 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: preview: Replace the crop API by the selection APILaurent Pinchart2012-05-081-20/+54
| | | | | | | | Support for the legacy crop API is emulated in the subdev core. 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: Add selection support on output formatter source padLaurent Pinchart2012-05-082-13/+169
| | | | | | 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: Mark probe and cleanup functions with __devinit and __devexitLaurent Pinchart2012-05-081-3/+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] omap3isp: preview: Add support for greyscale inputLaurent Pinchart2012-05-081-22/+30
| | | | | | | | Configure CFA interpolation automatically based on the input format. 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: preview: Rename last occurences of *_rgb_to_ycbcr to *_cscLaurent Pinchart2012-05-081-3/+3
| | | | | | | | For consistency reasons, rename the last remaining occurences of rgb_to_ycbcr to csc (color space conversion). Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] omap3isp: preview: Shorten shadow update delayLaurent Pinchart2012-05-082-108/+212
| | | | | | | | | | | | | | | | | | When applications modify preview engine parameters, the new values are applied to the hardware by the preview engine interrupt handler during vertical blanking. If the parameters are being changed when the interrupt handler is called, it just delays applying the parameters until the next frame. If an application modifies the parameters for every frame, and the preview engine interrupt is triggerred synchronously, the parameters are never applied to the hardware. Fix this by storing new parameters in a shadow copy, and switch the active parameters with the shadow values atomically. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] omap3isp: preview: Simplify configuration parameters accessLaurent Pinchart2012-05-081-72/+62
| | | | | | | | | | | Instead of using a large switch/case statement to return offsets to and sizes of individual preview engine parameters in the parameters and configuration structures, store the information in the update_attrs table and use it at runtime. 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: preview: Rename prev_params fields to match userspace APILaurent Pinchart2012-05-082-12/+12
| | | | | | | | Rename the blk_adj and rgb2ycbcr fields to blkadj and csc respectively. 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: preview: Remove update_attrs feature_bit fieldLaurent Pinchart2012-05-081-53/+54
| | | | | | | | | The feature_bit is always equal to 1 << array position, remove it and compute the value dynamically. 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: preview: Merge configuration and feature bitsLaurent Pinchart2012-05-082-72/+57
| | | | | | | | | | | | | | | The preview engine parameters are referenced by a value suitable for being used in a bitmask. Two macros named OMAP3ISP_PREV_* and PREV_* are declared for each parameter and are used interchangeably. Remove the private macro. Replace the configuration bit field in the parameter update attributes structure with a boolean that indicates whether the parameter can be updated through the preview engine configuration ioctl. 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: preview: Remove unused isptables_update structure definitionLaurent Pinchart2012-05-081-20/+0
| | | | | Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] omap3isp: preview: Remove averager parameter update flagLaurent Pinchart2012-05-081-2/+1
| | | | | | | | The flag isn't used, remove 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] omap3isp: preview: Optimize parameters setup for the common caseLaurent Pinchart2012-05-081-0/+6
| | | | | | | | | | If no parameter needs to be modified, make preview_config() and preview_setup_hw() return immediately. This speeds up interrupt handling in the common case. 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: preview: Skip brightness and contrast in configuration ioctlLaurent Pinchart2012-05-081-1/+1
| | | | | | | | | | | | | Brightness and contrast are handled through V4L2 controls. Their configuration bit in the preview engine update attributes table is set to -1 to reflect that. However, the VIDIOC_OMAP3ISP_PRV_CFG ioctl handler doesn't handle -1 correctly as a configuration bit value, and erroneously considers that the parameter has been selected for update by the ioctl caller. Fix this. 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: Handle omap3isp_csi2_reset() errorsSakari Ailus2012-05-081-1/+3
| | | | | | | | Handle errors from omap3isp_csi2_reset() in omap3isp_csiphy_acquire(). Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] omap3isp: Fix frame number propagationLaurent Pinchart2012-05-085-49/+6
| | | | | | | | | | | | | | | | | | When propagating the frame number through the pipeline, the frame number must be incremented at frame start by the appropriate IRQ handler. This was properly handled for the CSI2 and CCP2 receivers, but not when the CCDC parallel interface is used. ADD frame number incrementation to the HS/VS interrupt handler. As the HS/VS interrupt is also generated for frames received by the CSI2 and CCP2 receivers, remove explicit propagation handling from the serial receivers. Reported-by: Kruno Mrak <kruno.mrak@matrix-vision.de> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Tested-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] omap3isp: Prevent crash at module unloadSakari Ailus2012-05-081-1/+3
| | | | | | | | | | iommu_domain_free() was called in isp_remove() before omap3isp_put(). omap3isp_put() must not save the context if the IOMMU no longer is there. Fix this. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] omap3isp: Prevent pipelines that contain a crashed entity from startingLaurent Pinchart2012-05-084-7/+29
| | | | | | | | | | | | | | | | | | | | | The OMAP3 ISP preview engine will violate the L4 bus protocol if we try to write some of its internal registers after it failed to stop properly. This generates an external abort on non-linefetch fault, triggering a fatal kernel oops. We can't always prevent preview engine stop failures (they can for instance be caused by a sensor crash), but we can improve the system reliability by refusing to start streaming on a pipeline that contains the preview engine if it failed to stop. The driver will then eventually reset the ISP (when all applications will have closed their file handles related to OMAP3 ISP device nodes), making the ISP usable again. Fixes: NB#291334 - camera: Recover gracefully from ISP crash instead of oopsing Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com> Reviewed-by: Phil Carmody <ext-phil.2.carmody@nokia.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] uvcvideo: Use videobuf2 .get_unmapped_area() implementationLaurent Pinchart2012-05-081-30/+13
| | | | | | | | The get_unmapped_area() operation was forgotten during conversion to videobuf2. Fix it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] MAINTAINERS: Update UVC driver's mailing list addressLaurent Pinchart2012-05-081-1/+1
| | | | | Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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