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2018-12-31libcamera: Add MediaObject class hierarchyJacopo Mondi
Add a class hierarcy to represent all media objects a media graph represents. Add a base MediaObject class, which retains the global unique object id, and define the derived MediaEntity, MediaLink and MediaPad classes. This hierarchy will be used by the MediaDevice objects which represents and handles the media graph. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2018-12-31libcamera: pipeline: vimc: add pipeline handler for vimcNiklas Söderlund
Provide a pipeline handler for the virtual vimc driver. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-12-31libcamera: camera_manager: add CameraManager classNiklas Söderlund
Provide a CameraManager class which will handle listing, instancing, destruction and lifetime management of cameras. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-12-31libcamera: pipeline_handler: add PipelineHandler classNiklas Söderlund
Provide a PipelineHandler which represents a handler for one or more media devices and provides one or more cameras. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2018-12-31libcamera: device_enumerator: add documentationNiklas Söderlund
Document the intended use-case of the different elements of the device enumerator. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2018-12-31libcamera: device_enumerator: add factory for DeviceEnumeratorsNiklas Söderlund
Provide a factory for DeviceEnumerator objects. Depending on which libraries are available there will be different ways to enumerate information in the system. This factory hides this from the rest of the library. Currently udev enumeration is the only supported implementation, a sysfs implementation is another method that surely will be added in the future. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2018-12-31libcamera: device_enumerator: add DeviceEnumeratorUdev classNiklas Söderlund
Provide a DeviceEnumeratorUdev class which is a specialization of DeviceEnumerator which uses udev to enumerate information in the system. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-12-31libcamera: device_enumerator: add DeviceEnumerator classNiklas Söderlund
Provide a DeviceEnumerator base class which enumerates all media devices in the system and information about them, resolving Media Controller data structures to paths and a method to search in all the enumerated information. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-12-31libcamera: device_enumerator: add DeviceMatch classNiklas Söderlund
Provide a DeviceMatch class which represents all properties of a media device a pipeline hander can specify when searching for a device to use in its pipeline. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-12-31libcamera: device_enumerator: add DeviceInfo classNiklas Söderlund
Provide a DeviceInfo class which holds all information from the initial enumeration of a media device. Not all information available at a media device is stored, only the information needed for a pipeline handler to find a specific device. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2018-12-31libcamera: add dependency on libudevNiklas Söderlund
The device enumeration will depend on libudev, add the dependency to the build system. This should be turned into a optional dependency once a device enumerator not using udev is supported. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-12-31libcamera: Add Camera classNiklas Söderlund
Provide a Camera class which represents our main interface to handling camera devices. This is a rework of Kieran's initial proposal and Laurent's documentation of the file changed to fit the device enumerators needs. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2018-12-19libcamera: log: Add a debug log levelLaurent Pinchart
Many of the message logged by the library will be debug messages, we thus need a debug log level. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-12-19build: Define library private include pathJacopo Mondi
Separate declaration of library internal inclusion path. This will be used by tests, developed outside of library code, that need to include parts of the library internal APIs and can re-use the here defined variable. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2018-12-12libcamera: log: Document the LogMessage classLaurent Pinchart
Fix Doxygen build warnings by adding the missing documentation for the LogMessage class. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-12-12libcamera: log: Fix Doxygen documentationLaurent Pinchart
Now that the documentation can be compiled, Doxygen throws a few warnings due to incorrect enum field naming. Fix it. The \file block needs to be named after the header file in order for Doxygen to document any global function, variable, typedef or enum defined in the header (as documented in the Doxygen manual under the \file command). We thus need to use log.h as the file name. No \file block is needed for the .cpp file, as we don't want to generate documentation for internal private globals. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-12-11build: Clean up file names variablesLaurent Pinchart
The build system defines two variables, public_api and sources, that store the names of the public headers and the source files respectively. These files will need to be referenced when generating documentation from source code, so let's make the variable names more descriptive: - Rename public_api to libcamera_api and use the files() function - Rename sources to libcamera_sources - Add a libcamera_headers variable to hold the internal headers Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-12-11libcamera: log: Fix miscellaneous coding style issuesLaurent Pinchart
Those issues were pointed out during review. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2018-12-06libcamera: Use the logger instead of coutLaurent Pinchart
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2018-12-06libcamera: Add initial loggerLaurent Pinchart
The logger is based on the ostream API, allowing code to log messages in a native way. It automatically logs the time stamp, severity level, file name and line number. Many important features are missing, such as logging to file, logging classes, and log filtering based on the severity level, file name and class. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2018-12-06Overhaul the directory structureLaurent Pinchart
In order to match the directory structure of traditional projects, rename the top-level lib/ directory to src/libcamera/. Other libraries developed as part of the project will later find a home in src/. Split the libcamera header files in three categories: public headers describing the public API in include/libcamera/, internal headers describing the internal API in src/libcamera/include/, and private headers local to one or a small number of compilation units along the corresponding .cpp files. As no internal header exists yet the src/libcamera/include/ directory is created empty as the build system would fail otherwise. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>