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2021-06-28android: camera_device: Reset config_ if Camera::configure() failsLaurent Pinchart
The config_ pointer is reset in all error paths of the CameraDevice::configureStreams() function, except when Camera::configure() fails. Fix it by using a local unique pointer to store the configuration until the end of the function, to avoid similar issues in the future. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
2021-06-26libcamera: CameraSensorProperties: Add test pattern mode of IMX258Hirokazu Honda
Add supported test pattern modes of IMX258 in CameraSensorProperties. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-06-25libcamera: rename public libcamera dependencyKieran Bingham
Now that we have a libcamera_private, make the public only dependency libcamera_public so that it is clear which interface is being linked. Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-25libcamera: Move generated headers to private depKieran Bingham
The libcamera_generated_ipa_headers are only a dependency to internal components, and should not form part of the public API. Now that we have a private dependency, move the generated headers there. Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-25libcamera/base: Validate internal headers as privateKieran Bingham
Headers which must not be exposed as part of the public libcamera API should include base/private.h. Any interface which includes the private.h header will only be able to build if the libcamera_private dependency is used (or the libcamera_base_private dependency directly). Build targets which are intended to use the private API's will use the libcamera_private to handle the automatic definition of the inclusion guard. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-25libcamera/base: Move span to base libraryKieran Bingham
Move span, and adjust the Doxygen exclusion as well. Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-25libcamera/base: Move event_notifier to baseKieran Bingham
Move the event notifier, and associated header updates. Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-25libcamera/base: Move File to base libraryKieran Bingham
The File abstraction is a base helper and not part of the libcamera API. Move it to to allow usage by users of the base library. Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-25libcamera/base: Move extended base functionalityKieran Bingham
Move the functionality for the following components to the new base support library: - BoundMethod - EventDispatcher - EventDispatcherPoll - Log - Message - Object - Signal - Semaphore - Thread - Timer While it would be preferable to see these split to move one component per commit, these components are all interdependent upon each other, which leaves us with one big change performing the move for all of them. Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-25libcamera/base: Move class helpers to the base libraryKieran Bingham
Move the class support infrastructure to the base library. Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-25libcamera/base: Move utils to the base libraryKieran Bingham
Move the utils functionality to the libcamera/base library. Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-25libcamera/base: Introduce new base libraryKieran Bingham
The libcamera-base.so will feature internal support functionality that is utilised by libcamera, and can be shared in other places. This new library provides a layer beneath libcamera which provides common abstractions to internal objects. A pkg-config file is generated and named libcamera-base.pc which allows components such as external IPA modules to link directly to this library if they need. Normal applications will reference this library through the Requires: statement provided by the libcamera.pc package configuration, and linkage will be handled automatically through the pkg-config mechanisms. No code is moved to this library yet, this patch only introduces the framework, construction and linkage. Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-25libcamera: Separate source and build path helpersKieran Bingham
The libcameraSourcePath and libcameraBuildPath helper functions are internal and specific to libcamera needs while operating with the meson build system. In preparation for the upcoming move of utils to a common library, move these helpers out of utils and into their own build unit. Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Hirokazu Honda<hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-25libcamera: Rename libcamera pkg-config generationKieran Bingham
The libcamera library is moved to the first positional argument of the pkg-config generator to automatically populate the name and filebase values for the package. As part of this, the shared library name is adjusted to the full library name 'libcamera', without relying upon the automatic 'lib' prefix which better represents the component and naming of the library. As a result of this, the pkgconfig file is now named 'libcamera.pc' as opposed to 'camera.pc', and applications desiring to reference libcamera will need to search for 'libcamera' as a dependency rather than 'camera'. The library itself is still created and installed as 'libcamera.so'. An example meson.build file would need to be adjusted as the following: - dependency('camera', required : true), + dependency('libcamera', required : true), Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-25libcamera: Move libcamera.so pkg-config file generationKieran Bingham
The pkg-config file for the main libcamera.so is generated at the top level meson.build. Move this to the actual core libcamera build structure to be consistent and keep it next to the library construction. Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-25android: cros: Simplify integrationKieran Bingham
The ChromeOS specific Android HAL support was overly-complex to support linking an additional library, and then passing the built object into the libcamera.so build. Now that it has its own distinct libcamera-hal.so, simplify the CrOS integration to build directly into that library. The removal of the -Wno-shadow here is intentional, as it is not required for compilation of the camera3_hal.o object. Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-25android: Split HAL to its own shared libraryKieran Bingham
The libcamera Android HAL implementation should not be an integral part of libcamera, but a support library that utilises the libcamera public API. Move the implementation to its own distinct library. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-25gstreamer: Added virtual functions needed to support request padsVedant Paranjape
This patch adds support for using request pads in libcamerasrc Gst Element. It allows a user to request multiple streams if the platform supports multistream output using libcamera. This was tested on Raspberry Pi 4B+ with a camera connected to CSI port. It can be tested by running the following command gst-launch-1.0 libcamerasrc camera-name="<camera-name-here>" name=src src.src ! queue ! videoconvert ! autovideosink src.src_0 ! queue ! videoconvert ! autovideosink Signed-off-by: Vedant Paranjape <vedantparanjape160201@gmail.com> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
2021-06-25android: mm: cros_camera_buffer: Fix wrong indexing in plane()Hirokazu Honda
CameraBuffer::plane() should be accessed in zero based index. Fix the wrong indexing in CameraBuffer::plane() in cros_camera_buffer.cpp. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
2021-06-24ipa: ipu3: Use libcamera::utils::Duration helper class for durationsUmang Jain
std::chrono::Duration is provided quite conveniently by libcamera::utils::Duration wrapper. Port IPAIPU3 to use that for duration-type entities (such as exposure time), such that it becomes consistent with rest of the codebase. The commit doesn't introduce any functional changes. Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
2021-06-23pipeline: raspberrypi: Simplify RPiCameraData::clearIncompleteRequests()Naushir Patuck
With the addition of FrameBuffer::cancel(), the logic to clear and return pending requests can be simplified by not having to queue all the request buffers to the device before calling streamOff(). Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Tested-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2021-06-23android: Introduce CameraCapabilties classJacopo Mondi
The camera_device.cpp has grown a little too much, and it has quickly become hard to maintain. Break out the handling of the static information collected at camera initialization time to a new CameraCapabilities class. Break out from the camera_device.cpp file all the functions related to: - Initialization of supported stream configurations - Initialization of static metadata - Initialization of request templates Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Acked-by: Paul Elder <paul.elder@ideasonboard.com> Tested-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
2021-06-23android: Sort source files alphabeticallyJacopo Mondi
Sort the list of the Android HAL source file alphabetically. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-06-23libcamera: Add OV5647 sensor propertiesVedant Paranjape
Brief specifications available at https://cdn.sparkfun.com/datasheets/Dev/RaspberryPi/ov5647_full.pdf > pixel size: 1.4 μm x 1.4 μm Change in this patch is referenced from Page 5: key specifications section of the above linked pdf Signed-off-by: Vedant Paranjape <vedantparanjape160201@gmail.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
2021-06-22ipa: raspberrypi: Fix possible buffer overrun in metadata parsingNaushir Patuck
The SMIA metadata parser could possibly read one byte past the end of the buffer as the buffer size test ran after the read operation. Fix this. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-06-19libcamera: utils: Support systems that lack secure_getenv and issetugidLaurent Pinchart
Android provides neither secure_getenv() nor issetugid(). Enable compilation on that platform by using a plain getenv(), as that seems to be the best we can do. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-17libcamera: pipeline: simple: Fix crash when storing timestamp in metadataLaurent Pinchart
Commit 922833f774f6 ("libcamera: simple: Report sensor timestamp") unconditionally tries to access the request through the capture buffer to store the capture timestamp in the metadata. This causes a null pointer dereference when using a converter, as the capture buffers are free-wheeling in that case, and not associated with a request. Fix this by getting the request from the user-facing buffer, which can be the capture buffer when no converter is used. Fixes: 922833f774f6 ("libcamera: simple: Report sensor timestamp") Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2021-06-17android: camera_device: Simplify leftover CameraMetadata callsPaul Elder
There were some CameraMetadata calls that were left in the old version. Update them. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
2021-06-16libcamera: pipeline: vimc: Fail without an IPAKieran Bingham
The IPA is required for VIMC so fail early if it can't be loaded. Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-16pipeline: ipu3: Report error when failing to configureKieran Bingham
If the IPA fails to configure, this can now be caught by the pipeline handler but the cause may not be clear. If the IPA is isolated, then reports from that IPA will not be visible in the libcamera logs directly. Print the return error value to help identify any issue that has arisen. Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-16meson: summarise pathsKieran Bingham
The IPAs are loaded from a defined location set as IPA_MODULE_DIR. Furthermore, configuration files for both libcamera and IPAs are loaded from paths defined during the meson configuration. To make it easy to identify these locations for a given configuration, present them as a 'paths' section in the meson summary. This adds a summary section to meson in the form: Paths LIBCAMERA_DATA_DIR : "/usr/share/libcamera" LIBCAMERA_SYSCONF_DIR : "/etc/camera/libcamera" IPA_PROXY_DIR : "/usr/libexec/libcamera" IPA_CONFIG_DIR : "/etc/camera/libcamera/ipa:/usr/share/libcamera/ipa" IPA_MODULE_DIR : "/usr/lib/x86_64-linux-gnu/libcamera" Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-15android: camera_device: Drop HAL_PIXEL_FORMAT_RAW_OPAQUE supportHirokazu Honda
HAL_PIXEL_FORMAT_RAW_OPAQUE is requested only for Zero-Shutter-Lag (ZSL). ZSL requires RAW and YUV reprocessing. Since either of them is not supported by libcamera, supporting RAW_OPAQUE format doesn't make sense. Drop the format from the supported format list. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-06-15ipa: raspberrypi: Non-functional formatting fixes to md_parser_smia.cppNaushir Patuck
Adjust source formatting to closer match libcamera guidelines: - Remove unused header files. - Switch to C style comments. - Adjust whitespace for readability. - Remove retcode local variable usage. There are no functional changes in this commit. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-06-15ipa: raspberrypi: Rename md_parser.cpp to md_parser_smia.cppNaushir Patuck
The file implements the MdParserSmia class, so change the file name to reflect this. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-06-15ipa: raspberrypi: Set default values for member variables of MdParserNaushir Patuck
Set some sensible default values for member variables of the MdParser class. Remove buffer_size_bytes_ along with some related asserts as this class now uses libcamera::Span for buffer handling, and buffer_size_bytes_ is unused. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-06-15ipa: raspberrypi: Non-functional formatting fixes to md_parser.hppNaushir Patuck
Adjust source formatting to closer match libcamera guidelines: - Switch to C style comments. - Add whitespace for readability. There are no functional changes in this commit. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-06-15libcamera: log: Destroy LogCategory instances in a controlled wayLaurent Pinchart
The LogCategory instances are constructed on first use as static variables in accessor functions, following the Meyers singleton pattern. As a result, their destruction order is not guaranteed. This can cause issues as the global Logger object, constructed in a similar fashion, is accessed from the LogCategory destructor and may be destroyed first. To fix this, keep the same singleton pattern, but allocate the LogCategory instances dynamically. As they get registered with the global Logger instance, we can destroy them in the Logger destructor. This only avoids destruction order issues between LogCategory and Logger, and doesn't address yet the fact that LOG() calls from destructors of global objects may access an already destroyed Logger. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chormium.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-14android: CameraDevice: Report queried test pattern modesHirokazu Honda
Report to the Android camera stack the list of supported test pattern modes constructed by inspecting the values reported by libcamera through the controls::draft::TestPatternMode control. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2021-06-14libcamera: pipeline: ipu3: Report available sensor test pattern modeHirokazu Honda
PipelineHandlerIPU3 gets available test pattern modes of the sensor device and reports them to a client. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2021-06-14libcamera: CameraSensor: Enable retrieving supported test pattern modesHirokazu Honda
This enables retrieving supported test pattern modes through CameraSensorInfo. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2021-06-14libcamera: CameraSensorProperties: Add table of v4l2 index and test patternHirokazu Honda
The V4L2 specification defines the sensor test pattern modes through a menu control, where a numerical index is associated to a string that describes the test pattern. The index-to-pattern mapping is driver specific and requires a corresponding representation in the library. Add to the static list of CameraSensorProperties a map of indexes to libcamera::controls::TestPatternModes values to be able to map the indexes returned by the driver to the corresponding test pattern mode. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2021-06-14libcamera: V4L2Device: Support v4l2 menu controlHirokazu Honda
This adds a support of v4l2 menu. The control info for v4l2 menu contains indices without names and 64bit values of querymenu. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2021-06-14libcamera: controls: Add sensor test pattern modeHirokazu Honda
The control is used to report available sensor test pattern modes and also specify the mode to sensor. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2021-06-14android: Implement flush() camera operationJacopo Mondi
Implement the flush() camera operation in the CameraDevice class and make it available to the camera framework by implementing the operation wrapper in camera_ops.cpp. Introduce a new camera state State::Flushing to handle concurrent flush() and process_capture_request() calls. As flush() can race with processCaptureRequest() protect it by introducing a new State::Flushing state that processCaptureRequest() inspects before queuing the Request to the Camera. If flush() is in progress while processCaptureRequest() is called, return the current Request immediately in error state. If flush() has completed and a new call to processCaptureRequest() is made just after, start the camera again before queuing the request. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-06-14android: Rename CameraDevice::mutex_Jacopo Mondi
With the introduction of an additional mutex class member, the name of the existing one is too generic. Rename CameraDevice::mutex_ in CameraDevice::descriptorsMutex_ and use the libcamera provided libcamera::Mutex type to align the style with the rest of the code base. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-06-14android: Guard access to the camera stateJacopo Mondi
Guard access to the camera state and the start/stop sequences with a mutex. Currently only stop() and the first call to processCaptureRequest() start and stop the camera, and they're not meant to race with each other. With the introduction of flush() the camera can be stopped concurrently to a processCaptureRequest() call, hence access to the camera state will need to be protected. Prepare for that by guarding the existing paths with a mutex. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-06-14android: Replace scoped_lock<> with libcamera::MutexLockerJacopo Mondi
The CameraDevice class uses std::scoped_lock<> to guard access to the class' descriptors_ member. std::scoped_lock<> provides a set of features that guarantees safety when locking multiple mutexes in a critical section, while for single locks happening in a scoped block it does not provides benefits compared to the simplest std::unique_lock<> which libcamera provides the MutexLocker type for. Replace usage of std::scoped_lock<> with libcamera::MutexLocker to make the implementation consistent with the rest of the code base. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-06-14android: camera_device: Replace running_ with CameraStateJacopo Mondi
The CameraDevice class maintains the camera state in the 'running_' boolean flag to check if the camera has to be started at the first received process_capture_request() call which happens after the camera had been stopped. So far this was correct, as the operations that change the camera could only start or stop the camera, so a simple boolean flag was enough. To prepare to handle the flush() operation that will introduce a new 'flushing' state, replace the simple plain boolean flag with an enumeration of values that define the CameraState. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-06-14libcamera: pipeline_handler: Cancel Request on queueing failureJacopo Mondi
Capture requests are queued by the PipelineHandler base class to each pipeline handler implementation using the virtual queueRequestDevice() function. However, if the pipeline handler fails to queue the request to the hardware, the request gets silently deleted from the list of queued ones, without notifying application of the error. Reporting to applications that a Request has failed to queue by cancelling and then completing it allows applications to maintain their request-tracking mechanism consistent with the one internal to the library. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-06-14libcamera: request: Add Request::cancel()Jacopo Mondi
Add a cancel() function to the Request class that allows to forcefully complete the request and its associated buffers in error state. Only pending requests can be forcefully cancelled. Enforce that by asserting the request state to be RequestPending. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>