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2020-04-27libcamera: controls: Reorder and update description of existing controlsNaushir Patuck
Group AE, AWB, etc. controls together for accessibility. Update descriptions for Contrast, Brightness, and Saturation controls. Update the uvcvideo and vimc pipeline handlers to use the new brightness, contrast and saturation units. UVC has no explicit units for those controls, so map them with a best effort heuristic. For VIMC, hardcode the control range based on knowledge of the driver implementation for simplicity. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-04-27libcamera: controls: Updates to gain and exposure controlsNaushir Patuck
Rename: ManualExposure -> ExposureTime ManualGain -> AnalogueGain Use micro-seconds units for ExposureTime. This is changed from milli- seconds. The latter would not allow very low exposure times. AnalogueGain switch to use a float to allow fractional gain adjustments. Update the uvcvideo pipeline handler to use the new exposure and gain units. For ExposureTime, UVC uses units of 100 micro-seconds, so map the values before setting V4L2_CID_EXPOSURE_ABSOLUTE. For AnalogueGain, UVC has no explicit gain units, so map the default gain value to 1.0 and linearly scale to the requested value. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-04-27libcamera: control_ids: Add comment to specify control directionNaushir Patuck
Document that controls are bi-directional by default. If a control is only returned in metadata, this must be specified in the control's description. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-04-27libcamera: pipeline: uvcvideo: Add support for AeEnableLaurent Pinchart
UVC devices support auto-exposure, expose the feature through the AeEnable control. Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-04-27libcamera: pipeline: uvcvideo: Refactor control handlingLaurent Pinchart
Move addition and processing of individual controls to separate functions, to prepare for more complex mappings of control values. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-04-26cam: Add an option to list camera controlsLaurent Pinchart
Add a new --list-controls option to print information about all the controls supported by a camera. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-04-26cam: Rename OptProps to OptListPropertiesLaurent Pinchart
The name OptProps is not very clear, spell it out fully. The command line options are not changed. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-04-26libcamera: v4l2_videodevice: Add support for frame start eventsLaurent Pinchart
Extend the V4L2VideoDevice to support notifying of frame start events. The events are received from the device through the V4L2 event API, and passed to users of the class through a signal. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-04-26libcamera: v4l2_device: Update documentationJacopo Mondi
Compound controls are now supported, but they're still listed as unsupported in some parts of the V4L2Device class documentation. Fix this by removing those parts. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-04-26libcamera: geometry: Rename Rectangle fieldsJacopo Mondi
The Rectangle class members that represents the rectangle horizontal and vertical sizes are named 'w' and 'h', in contrast with the Size and SizeRange classes which use 'width' and 'height', resulting in having to look at class definition every time to know which names to use. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-04-26libcamera: v4l2_videodevice: Rename fdEvent_ to fdBufferNotifier_Laurent Pinchart
To prepare for the addition of a second notifier for V4L2 events, rename the current fdEvent_ member to fdBufferNotifier_ to better reflect its usage. While at it, simplify allocation of the fdEvent_ notifier. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-04-20libcamera: device_enumerator_udev: Log the right number of missing depsLaurent Pinchart
Since commit e75ef59e028e ("libcamera: device_enumerator_udev: Update pending list in addUdevDevice") the populateMediaDevice() function returns 0 on success instead of the number of missing dependencies, resulting in a wrong number being logged. Fix it. Fixes: e75ef59e028e ("libcamera: device_enumerator_udev: Update pending list in addUdevDevice") Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <email@uajain.com>
2020-04-17libcamera: v4l2_videodevice: Return correct format for metadataLaurent Pinchart
When setting format on a metadata video device, the returned format isn't updated with the actual set format due to a typo. Fix it. Reported-by: Coverity CID=279098 Fixes: 629e9301c518 ("libcamera: v4l2_device: Add META support in g/s_fmt") Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-04-16libcamera: gen-ipa-pub-key.py: Wrap lines in generated fileLaurent Pinchart
To make the output more readable, break the publicKeyData_ array at 8 bytes boundaries. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-04-16libcamera: Make IPA module signing mandatory for the meantimeLaurent Pinchart
IPA module signing is optional, but when not available due to missing dependencies, we hit failures due to a non fully implemented IPA isolation. Make module signing mandatory until isolation is functional. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-04-16libcamera: Document dependencies for IPA module signingLaurent Pinchart
Document the dependency on libgnutls28-dev and openssl for IPA module signing int he README.rst file. While at it, sort the entries alphabetically. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-04-16libcamera: Make IPA module signing optionalLaurent Pinchart
The IPA module signing mechanism relies on openssl to generate keys and sign the module. If openssl is not found on the system, the build will fail. Make the dependency optional by detecting openssl, and skip generation of signatures if openssl isn't found. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-04-15licenses: Add SPDX headers to Doxygen configurationLaurent Pinchart
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-04-15licenses: Add SPDX headers to Gentoo ebuildLaurent Pinchart
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-04-15licenses: Add SPDX headers to the git commit hook scriptsLaurent Pinchart
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-04-15licenses: Add SPDX headers to RST documentationLaurent Pinchart
The documentation files are licensed under CC-BY-SA-4.0, but this has never been specified explicitly. Add corresponding SPDX headers. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-04-15licenses: Move developer's certificate of origin to Documentation/Laurent Pinchart
The developer's certificate of origin isn't a license, move it from LICENSES/ to Documentation/ by incorporating it in contributing.rst. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-04-15licenses: Replace deprecated GPL-2.0 with GPL-2.0-onlyLaurent Pinchart
The GPL-2.0 SPDX identifier is deprecated, replace it with GPL-2.0-only. The files in include/linux/ are not touched as they're copied verbatim from the kernel sources. Rename the GPL-2.0.txt license file to GPL-2.0-only.txt, and add a GPL-2.0.txt symlink to support the include/linux/ headers. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-04-15licenses: Remove unused LGPL-2.1Laurent Pinchart
No source is licensed under the LGPL-2.1, we only use LGPL-2.1-or-later. Remove the corresponding license file. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-04-15licenses: Add missing licensesLaurent Pinchart
Add missing license texts for licenses used in the project. The license texts have been retrieved using 'reuse download' ([1]). [1] https://reuse.software/ Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-04-15licenses: Rename license files according to REUSELaurent Pinchart
The REUSE specification [1] defines a standardized method for declaring copyright and licensing information. Rename the licenses directory and the files it contains to comply with the specification. No license text is modified. [1] https://reuse.software/spec/ Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-04-15test: list-camera: Handle error on starting the CameraManagerUmang Jain
Pointed out by Coverity DefectId=297074 Signed-off-by: Umang Jain <email@uajain.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-04-15utils: hooks: Add pre-push commit hookLaurent Pinchart
Add a pre-push commit hooks to prevent unintentional push of patches containing local changelogs to the master branch. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-04-15libcamera: v4l2_videodevice: Map V4L2_PIX_FMT_GREY to DRM FourCCLaurent Pinchart
DRM has a format for 8-bit greyscale data, DRM_FORMAT_R8. Despite the 'R' name, which comes from GL/Vulkan to mean single-channel data, the format maps to greyscale for display. We can thus map it to V4L2_PIX_FMT_GREY. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-04-15libcamera: v4l2_videodevice: Downgrade 4CC conversion errors to warningsLaurent Pinchart
Failing to convert between V4L2 and DRM 4CCs indicates something is likely wrong, but doesn't necessarily prevent the camera from being usable. It may for instance only limit the number of supported formats. Downgrade the related log messages from LogError to LogWarning. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-04-15libcamera: v4l2_videodevice: Expose the device capabilitiesLaurent Pinchart
Add a caps() function that exposes the V4L2 capabilities for the device. This is useful for generic code that can't hardcode any a priori knowledge of the device, such as in a simple pipeline handler. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-04-15libcamera: v4l2_subdevice: Don't use doxygen \ref needlesslyLaurent Pinchart
The doxygen \ref command is used to generate a reference to a function, while adding parentheses after the function name is enough. Simplify the documentation. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-04-15libcamera: v4l2_subdevice: Extend [gs]etFormat() to specify format typeLaurent Pinchart
The V4L2 subdevice API exposes ACTIVE and TRY formats, but the V4L2Subdevice getFormat() and setFormat() operations only apply on ACTIVE formats. Extend them to support TRY formats as well. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-04-15libcamera: utils: Add string join functionLaurent Pinchart
Add a utils::join() function to join elements of a container into a string, with a separator and an optional conversion function if the elements are not implicitly convertible to std::string. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-04-14libcamera: ipa: Remove IPAModuleInfo license fieldLaurent Pinchart
The IPAModuleInfo license field isn't needed anymore now that modules are cryptographically signed. Remove it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-04-14libcamera: ipa_manager: Verify IPA module signatureLaurent Pinchart
Decide whether to isolate the IPA module using the module signature instead of its license. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-04-14libcamera: ipa_manager: Embed IPA module signing public keyLaurent Pinchart
In preparation for verifying the signature of IPA modules, generate a public key from the private signing key and embed it in the IPAManager class. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-04-14libcamera: Add PubKey classLaurent Pinchart
Add a new PubKey class to handle public key signature verification. The implementation is based on the gnutls library, which is added as an optional dependency. If gnutls is not found, signature verification will unconditionally fail. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-04-14libcamera: ipa_module: Load IPA module signatureLaurent Pinchart
Load the signature from the .sign file, if available, when loading the IPA module information and store it in the IPAModule class. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-04-14libcamera: ipa_module: Use Span class to tie data and sizeLaurent Pinchart
The IPAModule class passes pointers to data and the corresponding size as thwo different variables to several functions. Tie them together in a Span. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-04-14libcamera: ipa_module: Simplify error handling in loadIPAModuleInfo()Laurent Pinchart
Use the File helper class to handle cleanup of the mapped file to simplify error handling in loadIPAModuleInfo(). Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-04-14test: Add File class testsLaurent Pinchart
Add tests for the File class API. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-04-14libcamera: Add File helper classLaurent Pinchart
The File helper class is a RAII wrapper for a file to manage the file handle and memory-mapped regions. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-04-14libcamera: Add IPA module signing infrastructureLaurent Pinchart
Add infrastructure to generate an RSA private key and sign IPA modules. The signatures are stored in separate files with a .sign suffix. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-04-14ipa: vimc: Remove isolated VIMC IPA moduleLaurent Pinchart
The isolated VIMC module isn't used in any test. Remove it to prepare for the rework of IPA module isolation. The feature can be added back later alongside corresponding tests if needed. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-04-14libcamera: ipa_manager: Proxy open-source IPAs to a threadLaurent Pinchart
While closed-source IPA modules will always be sandboxed, open-source IPA modules may be run in the main libcamera process or be sandboxed, depending on platform configuration. These two models exhibit very different timings, which require extensive testing with both configurations. When run into the main libcamera process, IPA modules are executed in the pipeline handler thread (which is currently a global CameraManager thread). Time-consuming operations in the IPA may thus slow down the pipeline handler and compromise real-time behaviour. At least some pipeline handlers will thus likely spawn a thread to isolate the IPA, leading to code duplication in pipeline handlers. Solve both issues by always proxying IPA modules. For open-source IPA modules that run in the libcamera process, a new IPAProxyThread class is added to run the IPA in a separate thread. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> [Niklas: Move thread start/stop of thread into start()/stop()] Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-04-14libcamera: pipeline: vimc: Call IPA start() and stop()Niklas Söderlund
Call the IPA start()/stop() functions before/after the camera is started. This makes sure the IPA functions properly once thread management is moved into the start/stop interface. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-04-14libcamera: pipeline: rkisp1: Call IPA start() and stop()Niklas Söderlund
Call the IPA start()/stop() functions before/after the camera is started. This makes sure the IPA functions properly once thread management is moved into the start/stop interface. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-04-14libcamera: pipeline: rkisp1: Do not try to process cancelled framesNiklas Söderlund
There is no need to try and process cancelled frames, try to finish as quickly as possible. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-04-14libcamera: pipeline: rkisp1: Add clear() to RkISP1FramesNiklas Söderlund
When the camera is stopping the helper that keeps track of which buffers are associated with a request is not cleared. Add a clear operation and call it when the camera is stopped. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>