- 03 Nov, 2011 40 commits
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Sylwester Nawrocki authored
V4L2_CID_POWER_LINE_FREQUENCY control allows applications to instruct a driver what is the power line frequency so an appropriate filter can be used by the device to cancel flicker by compensating the light intensity ripple. Currently in the menu we have entries for 50 Hz and 60 Hz and for entirely disabling the anti-flicker filter. However some devices are capable of automatically detecting the frequency, so add V4L2_CID_POWER_LINE_FREQUENCY_AUTO entry for them. Signed-off-by:
Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by:
Kyungmin Park <kyungmin.park@samsung.com> Acked-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@redhat.com>
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Janusz Krzysztofik authored
* with no "retrun ret;" at the end, there is no need to initialize ret any longer, * consequently use conditional expressions, not if...else constructs, throughout ov6650_s_ctrl(), * v4l2_ctrl_new_std_menu() max value of V4L2_EXPOSURE_MANUAL instead of equivalent 1 looks more clear. Created on top of "Converting soc_camera to the control framework" series. Signed-off-by:
Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by:
Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by:
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Bastian Hecht authored
This patch adds the ability to get arbitrary resolutions with a width up to 2592 and a height up to 720 pixels instead of the standard 1280x720 only. Signed-off-by:
Bastian Hecht <hechtb@gmail.com> Acked-by:
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Guennadi Liakhovetski authored
Most users of the <media/soc_mediabus.h> header only need pixel code definitions, which are now located in the generic <linux/v4l2-mediabus.h> header. Switch over to reduce soc-camera dependencies. Signed-off-by:
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Guennadi Liakhovetski authored
The most important change in this patch is direct linking to struct soc_camera_link via the client->dev.platform_data pointer. This makes most of the soc-camera client drivers also usable outside of the soc-camera framework. After this change all what is needed for these drivers to function are inclusions of soc-camera headers for some convenience macros, suitably configured platform data, which is anyway always required, and loaded soc-camera core module for library functions. If desired, these library functions can be made generic in the future and moved to a more neutral location. The only two client drivers, that still depend on soc-camera are: mt9t031: it uses struct video_device for its PM. Since no hardware is available, alternative methods cannot be tested. ov6650: it uses struct soc_camera_device to pass its sense data back to the bridge driver. A generic v4l2-subdevice approach should be developed to perform this. Signed-off-by:
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Guennadi Liakhovetski authored
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:
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Guennadi Liakhovetski authored
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:
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Guennadi Liakhovetski authored
If the sh_mobile_csi2 driver didn't attach to a client, normally, because the respective device connects to the SoC over the parallel CEU interface and doesn't use the CSI-2 controller, it also shouldn't call pm_runtime_put() on attempted disconnect. Signed-off-by:
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Guennadi Liakhovetski authored
Using the internally cached pixel code, instead of the one, provided by the soc-camera, removes one more use of struct soc_camera_device in these drivers. Also remove the no longer needed soc_camera_from_i2c() inline function. Signed-off-by:
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Guennadi Liakhovetski authored
Remove most trivial uses of struct soc_camera_device from most client drivers, abstracting some of them inside inline functions. Next steps will eliminate remaining uses and modify inline functions to not use struct soc_camera_device. Signed-off-by:
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Guennadi Liakhovetski authored
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Hans Verkuil authored
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Hans Verkuil <hans.verkuil@cisco.com> [g.liakhovetski@gmx.de: mt9m001 hunk moved to an earlier patch] Signed-off-by:
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Hans Verkuil authored
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Hans Verkuil authored
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Hans Verkuil authored
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Hans Verkuil authored
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Hans Verkuil authored
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Hans Verkuil authored
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Hans Verkuil authored
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Hans Verkuil authored
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Guennadi Liakhovetski authored
Currently soc-camera can use power regulators and platform specific methods to power clients up and down. Additionally, client drivers can provide their own subdevice .s_power() methods, acting directly on the device. This patch adds calls to this method, when external power supplies are on. Signed-off-by:
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Guennadi Liakhovetski authored
The life-time of soc-camera device objects can be longer, than the time, it is attached to a client driver, therefore all references to the driver own data have to be cleared, when the driver is detached. Signed-off-by:
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Guennadi Liakhovetski authored
The soc_camera_power_set() function processes two cases: power on anf off. These two cases don't share and common code, and the function is always called with a constant power on / off argument. Splitting this function into two removes a condition check, reduces indentation levels and makes the code look cleaner. Signed-off-by:
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Guennadi Liakhovetski authored
We do not have to scan the list of subdevices to find our client - the sensor, the host has already set our grp_id value. Signed-off-by:
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Guennadi Liakhovetski authored
It is a task of the host / bridge driver to bind single subdevices into a pipeline, not of respective subdevices. Eventually this might be handled by the Media Controller API. Signed-off-by:
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Guennadi Liakhovetski authored
This patch adds two new ioctl() handlers: .vidioc_create_bufs() and .vidioc_prepare_buf() for compliant vb2 soc-camera hosts. Signed-off-by:
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Guennadi Liakhovetski authored
Prepare the mx3_camera friver to support the new VIDIOC_CREATE_BUFS and VIDIOC_PREPARE_BUF ioctl()s. The .queue_setup() vb2 operation must be able to handle buffer sizes, provided by the caller, and the .buf_prepare() operation must not use the currently configured frame format for its operation, which makes it superfluous for this driver. Its functionality is moved into .buf_queue(). Signed-off-by:
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Guennadi Liakhovetski authored
Prepare the sh_mobile_ceu_camera friver to support the new VIDIOC_CREATE_BUFS and VIDIOC_PREPARE_BUF ioctl()s. The .queue_setup() vb2 operation must be able to handle buffer sizes, provided by the caller, and the .buf_prepare() operation must not use the currently configured frame format for its operation. Signed-off-by:
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Hans Verkuil authored
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Hans Verkuil authored
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Hans Verkuil authored
And since this is the last and only host driver that uses controls, also remove the now obsolete control fields from soc_camera.h. Signed-off-by:
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Hans Verkuil authored
The soc_camera framework is switched over to use the control framework. After this patch none of the controls in subdevs or host drivers are available, until those drivers are also converted to the control framework. Signed-off-by:
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Guennadi Liakhovetski authored
To support multi-size buffers in the mx3_camera V4L2 driver we have to be able to stop DMA on a channel without releasing descriptors and completely halting the hardware. Use the DMA_PAUSE control to implement this mode. Signed-off-by:
Vinod Koul <vinod.koul@linux.intel.com> Signed-off-by:
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Guennadi Liakhovetski authored
The two recently added ioctl()s VIDIOC_CREATE_BUFS and VIDIOC_PREPARE_BUF allow user-space applications to allocate video buffers of different sizes and hand them over to the driver for fast switching between different frame formats. This patch adds support for buffers of different sizes on the same buffer-queue to vb2. Signed-off-by:
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Guennadi Liakhovetski authored
In preparation for the forthcoming VIDIOC_CREATE_BUFS ioctl add a "const struct v4l2_format *" argument to the .queue_setup() vb2 operation. Signed-off-by:
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Guennadi Liakhovetski authored
[mchehab@redhat.com: remove emacs format crap at the end of the new files] Signed-off-by:
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Guennadi Liakhovetski authored
V4L2 specification states, that the videobuffer state flags have to be updated on VIDIOC_QBUF ioctl(). Videobuf2 currently doesn't do that, which is fixed by this patch. Signed-off-by:
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Guennadi Liakhovetski authored
A possibility to preallocate and initialise buffers of different sizes in V4L2 is required for an efficient implementation of a snapshot mode. This patch adds two new ioctl()s: VIDIOC_CREATE_BUFS and VIDIOC_PREPARE_BUF and defines respective data structures. Signed-off-by:
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Guennadi Liakhovetski authored
This patch prepares for a better separation of the buffer preparation stage. Signed-off-by:
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Guennadi Liakhovetski authored
Consistently check for platform data != NULL before dereferencing. Signed-off-by:
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