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2019-04-03libcamera: ipu3: Queue requests to ImgUJacopo Mondi
Implement queueRequest for the IPU3 pipeline manager. When a request is queued, a new buffer is queued to the ImgU output for capture. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-04-03libcamera: ipu3: Implement camera start/stopJacopo Mondi
Start and stop video devices in the pipeline. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-04-03libcamera: ipu3: Implement memory handlingJacopo Mondi
Implement buffer allocation and release in IPU3 pipeline handlers. As the pipeline handler currently supports a single stream, provide two internal buffer pools for 'viewfinder' and 'stat' video devices, and export the 'output' video device buffers to the stream's pool. This works around the fact that the ImgU requires buffers to be queued on all its outputs, even when they are not in use. Share buffers between the CIO2 output and the ImgU input video devices, as the output of the former should immediately be provided to the latter for further processing. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-04-03libcamera: ipu3: Apply image format to the pipelineJacopo Mondi
Apply the requested stream configuration to the CIO2 device, and propagate formats through the the ImgU subdevice and its input and output video devices. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-04-03libcamera: ipu3: Create ImgUDevice classJacopo Mondi
Group ImgU components in a class associated with a camera at camera registration time and provide an intialization method to create and open all video devices and subdevices of the ImgU. Statically assign imgu0 to the first camera and imgu1 to the second one and limit support to two cameras. This will have to be revised in the future. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-04-03libcamera: ipu3: Cache the sensor size and formatJacopo Mondi
Cache the sensor maximum size and the media bus code used to produce it. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-04-03libcamera: ipu3: Create CIO2Device classJacopo Mondi
Group CIO2 components (cio2, csi2 and image sensor) in a class associated with the CameraData, to ease management and initialization of CIO2 unit at camera registration time. A CIO2 unit will always be associated with a single Camera only. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-04-03libcamera: geometry: Add Size structureJacopo Mondi
Add a simple Size structure that contains an image width and height. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-04-03libcamera: geometry: Add 0-initialized SizeRange constructorJacopo Mondi
Add constructor to SizeRange which initialize all the size range fields to 0. While at there make the in-line constructor declarations respect the coding style by moving braces to a new line. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-04-03libcamera: utils: Use internal secure_getenv() implementationKieran Bingham
The secure_getenv() call is not provided by all C libraries. Support this feature by implementing our own version. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-04-03libcamera: utils: Use internal basename implementation.Kieran Bingham
Differing implementations of basename() exist, some of which may modify the content of the string passed as an argument. The implementation of basename() is trivial, thus to support different C librariese, provide our own version which accepts and returns a const char *. Update the call sites to use the new implementation. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-04-02qcam: Add JPEG format supportLaurent Pinchart
When the camera provides MJPEG, use the QImage JPEG decompression code to convert that to RGB. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-04-02libcamera: v4l2_subdevice: Create device from entity nameJacopo Mondi
Add a static method to V4L2Subdevice class to create a V4L2Subdevice instance from a media entity name. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-04-02libcamera: v4l2_device: Create device from entity nameJacopo Mondi
Add a static method to V4L2Device class to create a V4L2Device instance from a media entity name. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-04-02libcamera: v4l2_subdevice: Rename deviceName() methodJacopo Mondi
Rename the 'deviceName()' method to 'entityName()' as it actually returns the name of the entity backing the v4l2 subdevice. While at it, make the names getter methods return a const reference instead of returning by copy. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-04-02libcamera: geometry: Add toString to RectangleJacopo Mondi
Add toString() helpers to pretty print out the sizes of a Rectangle. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-04-02libcamera: formats: Define FormatEnum typeJacopo Mondi
Add an internal format.h and format.cpp files to collect libcamera image format related types, helpers and structures. Define and document the FormatEnum type, used to enumerate pixel image formats and associated image resolutions. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-04-02libcamera: formats: Add toString() methodsJacopo Mondi
Add toString() helpers to pretty print out a V4L2Device or V4L2Subdevice format. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-03-29qcam: Add Qt-based GUI applicationLaurent Pinchart
qcam is a sample camera GUI application based on Qt. It demonstrates integration of the Qt event loop with libcamera. The application lets the user select a camera through the GUI, and then captures a single stream from the camera and displays it in a window. Only streams in YUYV formats are supported for now. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-03-27cam: Separate options valid() and empty()Laurent Pinchart
An empty option list is not necessarily an error. Add a new empty() function to test the option list for emptiness, and modify the valid() function to only notify parsing errors. As a side effect this allows accessing partially parsed options, which may be useful in the future. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-03-27cam: options: Add support for repeatable optionsNiklas Söderlund
Add a flag to indicate if an option can be repeatable. If an option is repeatable it must be accessed thru the array interface, even if it's only specified once by the user. Also update the usage generator to indicate which options are repeatable. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-03-27cam: options: Add an array data type to OptionValueNiklas Söderlund
To allow specifying the same argument option multiple times a new type of OptionValue is needed. As parsing of options is an iterative process there is a need to append options as they are parsed so instead of setting values using the constructor a new addValue() method is used. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-03-25cam: options: Create separate enum for OptionValue typesNiklas Söderlund
In preparation for support of multiple instances of the same option, create a separate enum for the OptionValue types as it will diverge from enum OptionType. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-03-20libcamera: v4l2_device: Fix trivial spelling errorsKieran Bingham
succcess -> success categorized -> categorised Acked-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-03-20libcamera: media_device: Initialise local variableKieran Bingham
The local variable ifaceId generates a compiler warning that it is used without initialisation. The loop, and check against the loop iterator, and the topology.num_interfaces actually ensures that this isn't the case, and that ifaceId can only be used when set to a valid ID. The media_v2_interface.id field documents the ID as simply "Unique ID for the interface" but does not specify if zero is a valid ID or not. As such we don't further check the pre-initialised ID for validity and keep the existing check on the iterator count to determine if the ID had been discovered successfully. Fixes: d4af90d72901 ("libcamera: media_device: Create entities with major and minor numbers") Acked-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-03-10libcamera: camera: Fix access bug in configureStreams()Niklas Söderlund
It is not permitted to configure streams before a camera is acquired. Fixes: 77100a7578d8a0cc ("libcamera: camera: add state machine to control access from applications") Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-03-05libcamera: camera: ensure streams belong to cameraNiklas Söderlund
Before calling into the pipeline handler make sure the streams provided by the application actually belongs to the camera. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-03-05libcamera: camera: Unmap buffers before releaseKieran Bingham
Buffers must have all mappings destroyed before buffers can be freed by the V4L2 device that has allocated them. Swap the ordering of freeBuffers() and destroyBuffers() to correct this. Fixes: bd38112b7795 ("libcamera: camera: Extend the interface to support capture") Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-03-05libcamera: v4l2_device: Close Plane dmabuf fdKieran Bingham
When constructing a Plane, the exported buffer provides a dmabuf handle which is set to the Plane object. This action duplicates the handle for internal storage, and the original fd is not used and needs to be closed. Close the handle, ensuring that the resources can be correctly managed. Fixes: 771befc6dc0e ("libcamera: v4l2_device: Request buffers from the device") Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-03-02libcamera: v4l2_device: Cosmetic updateJacopo Mondi
Cosmetic update of V4L2Device class: remove the return type from Doxygen documentation of inline functions. Cosmetic update, no functional changes intended. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-03-02libcamera: v4l2_device: Add support for META_CAPTURE devicesJacopo Mondi
Add support for devices that provide video meta-data to v4l2_device.cpp and re-arrange bufferType handling in open() method. Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-03-02libcamera: v4l2_subdevice: Cosmetic updateJacopo Mondi
Cosmetic updated of V4L2Subdevice class: re-sort methods and comments to reflect the declaration order in the class definition. Cosmetic update, no functional changes intended. Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-03-02libcamera: v4l2_subdevice: Implement ENUM_FRAME_SIZESJacopo Mondi
Implement format and size enumeration methods to list all the available subdevice image resolutions and formats. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-03-01cam: Don't requeue requests when stopping streamLaurent Pinchart
When stopping the stream all pending requests are cancelled, resulting in the request completion signal being emitted with the request status set appropriately. Check the request status in the request completion slot and skip requeuing the request if it has been cancelled. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-03-01libcamera: Handle request completion explicitly in pipeline handlersLaurent Pinchart
Request complete by themselves when all the buffers they contain have completed, connecting the buffer's completed signal to be notified of buffer completion. While this works for now, it prevents pipelines from delaying request completion until all metadata is available, and makes it impossible to ensure that requests complete in the order they are queued. To fix this, make request completion handling explicit in pipeline handlers. The base PipelineHandler class is extended with implementations of the queueRequest() and stop() methods and gets new completeBuffer() and completeRequest() methods to help pipeline handlers tracking requests and buffers. The three existing pipeline handlers connect the bufferReady signal of their capture video node to a slot of their respective camera data instance, where they use the PipelineHandler helpers to notify buffer and request completion. Request completion is handled synchronously with buffer completion as the pipeline handlers don't need to support more advanced use cases, but this paves the road for future work. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-03-01libcamera: request: Add request completion statusLaurent Pinchart
Add a new field to the Request class to report its completion status, and a new complete() method to update the status. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-03-01libcamera: buffer: Add buffer completion statusLaurent Pinchart
Add a new field to the Buffer class to report its completion status, with a new cancel() method to mark the buffer as cancelled. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-03-01libcamera: pipeline_handler: Make pipeline-specific data mandatoryLaurent Pinchart
Mandate creationg of pipeline-specific data by pipeline handlers. This allows simplifying the API by passing the pipeline-specific data to the registerCamera() method and removing the separate setCameraData() method. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-03-01libcamera: pipeline_handler: Store pipe and camera in CameraDataLaurent Pinchart
Extend the CameraData class with two member variables pipe_ and camera_ that store pointers to the pipeline handler and camera that the CameraData instance is related to. This will be used by pipeline handlers to access the camera and the pipeline in member methods of their CameraData derived classes. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-03-01libcamera: pipeline_handler: Pass a non-const Camera to methodsLaurent Pinchart
The start(), stop() and queueRequest() methods receive a const pointer to the related Camera object. The stop() request will need to modify the state of the camera, in order to report completion of pending requests. Un-constify the Camera pointer to that method, and update the start() and queueRequest() methods similarly for coherency. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-03-01libcamera: pipeline: vimc: Create VimcCameraDataLaurent Pinchart
Subclassing CameraData will become mandatory for pipeline handlers. Create a new VimcCameraData class and instantiate it when creating cameras to prepare for that change. The video_ and stream_ fields of the VIMC pipeline handler belong to the camera data, move them there. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-03-01libcamera: pipeline: uvcvideo: Create UVCCameraDataLaurent Pinchart
Subclassing CameraData will become mandatory for pipeline handlers. Create a new UVCCameraData class and instantiate it when creating cameras to prepare for that change. The video_ and stream_ fields of the UVC pipeline handler belong to the camera data, move them there. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-03-01libcamera: pipeline: Fix double release of media devicesLaurent Pinchart
Media devices are acquired in the match() function of pipeline handlers, and explicitly released if no match is found. The pipeline handler is then deleted, which causes a second release of the media device in the destructor. Fix this by removing the explicit release in the match() function. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Acked-by: Jacopo Mondi <jacopo@jmondi.org>
2019-03-01libcamera: v4l2_device: Expose the device node pathJacopo Mondi
Provide a getter method to access the device node path. For video devices it is usually the most informative description. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-03-01libcamera: v4l2_subdevice: Update crop/compose rectangleJacopo Mondi
Update the crop/compose rectangle provided to setCrop()/setCompose() methods with the rectangle sizes set by the device driver after a S_SELECTION ioctl operation. While at there, fix the use of 'top' and 'left' field of the selection rectangle, which where wrongly used. Fixes: 468176fa07d9 ("libcamera: Add V4L2Subdevice") Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-03-01libcamera: v4l2_subdevice: Inherit from LoggableJacopo Mondi
Prefix the V4L2Subdevice error messages with the name of the entity. Remove the manually printed name from log messages where it was used and standardize error messages while at there. Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-03-01libcamera: v4l2_subdevice: Store media entityJacopo Mondi
Store the media entity backing the V4L2Subdevice and add a deviceName() method to retrieve the human readable name of the subdevice, which is created using the name of the associated media entity. Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-03-01libcamera: camera: add state machine to control access from applicationsNiklas Söderlund
There is a need to better control the order of operations an application performs on a camera for it to function correctly. Add a basic state machine to ensure applications perform operations on the camera in good order. Internal to the Camera states are added; Available, Acquired, Configured, Prepared and Running. Each state represents a higher state of configuration of the camera ultimately leading to the highest state where the camera is capturing frames. Each state supports a subset of operations the application may perform. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-02-28libcamera: store stream pointers in sets instead of a vectorsNiklas Söderlund
The arrays that store Stream pointers shall always contain unique values. Storing them in vectors opens up for the same stream pointer appearing twice. Remove this possibility by storing them in a set which guarantees each element is unique. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-02-28cam: fix order camera is operated onNiklas Söderlund
Upcoming enforcing of order the camera shall be operate on is not compatible with the cam utility. Requests shall be queued after the camera is started, not before. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>