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2019-10-25libcamera: pipeline: vimc: Support format enumerationLaurent Pinchart
Fill the StreamConfiguration with all supported formats. The list of supported formats is currently hardcoded based on the limits of the vimc driver. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-10-25qcam: Don't ask for a camera when only one existsKieran Bingham
If there is only one camera exposed by libcamera, there is little value in asking the user to choose it. Automatically select it, and remove the need to ask the user to select 'ok' from a Dialog box. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-10-23libcamera: Standardise on C compatibility headersLaurent Pinchart
Now that our usage of C compatibility header is documented, use them consistently through the source code. While at it, group the C and C++ include statements as defined in the coding style, and fix a handful of #include ordering issues. 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>
2019-10-22libcamera: pipeline_handler: Fix trivial spellingKieran Bingham
Signaled is an American spelling. s/signaled/signalled/ Fixes: b2c06cf40975 ("libcamera: Handle request completion explicitly in pipeline handlers") Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-10-17qcam: Support Qt versions earlier than 5.9Laurent Pinchart
The QtEventDispatcher timers implementation depends on Qt 5.9 or newer due to the use of QObject::startTimer(std::chrono::milliseconds). Support earlier Qt versions by using the QObject::startTimer(int) version instead. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-15libcamera: v4l2_controls: Remove V4L2ControlList classLaurent Pinchart
The V4L2ControlList class only provides a convenience constructor for the ControlList, which can easily be moved to the ControlList class and may benefit it later (to construct a ControlList from controls supported by a camera). Move the constructor and remove V4L2ControlList. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-10-15libcamera: controls: Merge ControlInfoMap and V4L2ControlInfoMapLaurent Pinchart
The ControlInfoMap and V4L2ControlInfoMap classes are very similar, with the latter adding convenience accessors based on numerical IDs for the former, as well as a cached idmap. Both features can be useful for ControlInfoMap in the context of serialisation, and merging the two classes will further simplify the IPA API. Import all the features of V4L2ControlInfoMap into ControlInfoMap, turning the latter into a real class. A few new constructors and assignment operators are added for completeness. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-10-15libcamera: v4l2_controls: Derive V4L2ControlInfoMap from ControlInfoMapLaurent Pinchart
Replace the std::map<> used as the base type for V4L2ControlInfoMap by ControlInfoMap, which is an alias for an std::unsorted_map<> with the same key and value types. This shortens the code. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-10-15libcamera: v4l2_controls: Store a ControlRange in V4L2ControlInfoMapLaurent Pinchart
V4L2ControlRange only offers a convenience constructor for a ControlRange. Store the ControlRange instead of V4L2ControlRange in V4L2ControlInfoMap to make the map less dependent on V4L2 types. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-10-15libcamera: v4l2_controls: Replace V4L2ControlInfo with V4L2ControlRangeLaurent Pinchart
The V4L2ControlInfo class only stores a ControlRange. Make it inherit from ControlRange to provide a convenience constructor from a struct v4l2_query_ext_ctrl and rename it to V4L2ControlRange. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-10-15libcamera: v4l2_controls: Index V4L2ControlInfoMap by ControlId *Laurent Pinchart
To bring the libcamera and V4L2 control info maps closer, index the latter by ControlId * like the former. As V4L2ControlInfoMap is widely indexed by V4L2 numerical IDs, add accessors based on numerical IDs. This allows complete removal of the ControId pointer from the V4L2ControlInfo, as the ControId is accessible as the key when iterating over the map. A handful of users have to be modified to adapt to the change. The controlInfo argument from V4L2Device::updateControls() can also be removed as it itsn't used anymore. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-10-15libcamera: v4l2_controls: Move V4L2ControlId out of V4L2ControlInfoJacopo Mondi
In order to reconcile the libcamera and V4L2 control info maps, we need to move the V4L2ControlId embedded in V4L2ControlInfo map out of the class. Store the V4L2ControlId instances in the V4L2Device that creates them, and only reference them from V4L2ControlInfo. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-10-15libcamera: v4l2_controls: Remove V4L2ControlInfo::size()Laurent Pinchart
We don't support V4L2 compound controls, the size field is thus unused. Remove it to ease merging of the libcamera and V4L2 control info classes. Support for array controls can then be added later on top, and would be useful for libcamera controls too. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-10-15libcamera: v4l2_device: Print control ID in unknown type log messaggeLaurent Pinchart
When the type of a control enumerated from a V4L2 device is not supported, we log a debug message that mentions the control type. This makes it hard to figure out which control is faulty. Print the control ID instead. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-15libcamera: utils: Add hex stream output helperLaurent Pinchart
Add a utils::hex() function that simplifies writing hexadecimal values to an ostream. The function handles the '0x' prefix, the field width and the fill character automatically. Use it through the libcamera code base, and add a test. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-10-13libcamera: ipa: Merge controls and v4l2controls in IPAOperationDataLaurent Pinchart
Now that the V4L2ControlList is merely a helper to construct a ControlList for V4L2 controls, without any data member, all controls can be transferred between pipeline handlers and IPAs using ControlList only. Remove the v4l2controls member for IPAOperationData and use the control member instead. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-13libcamera: v4l2_device: Replace V4L2ControlList with ControlListLaurent Pinchart
The V4L2Device class uses V4L2ControlList as a controls container for the getControls() and setControls() operations. Having a distinct container from ControlList will makes the IPA API more complex, as it needs to explicitly transport both types of lists. This will become even more painful when implementing serialisation and deserialisation. To simplify the IPA API and ease the implementation of serialisation and deserialisation, replace usage of V4L2ControlList with ControlList in the V4L2Device (and thus CameraSensor) API. The V4L2ControlList class becomes a thin wrapper around ControlList that slightly simplifies the creation of control lists for V4L2 controls, and may be removed in the future. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-13libcamera: v4l2_controls: Turn V4L2ControlInfoMap into a classLaurent Pinchart
In preparation for extending V4L2ControlInfoMap with control idmap support, turn it into a real class. Make it inherit from std::map<> instead of wrapping it to keep the API simple. V4L2ControlInfoMap is meant to be constructed with a set of control info, and never modified afterwards. To ensure this, inherit from std::map<> with private access specifier, and explicitly expose the std::map<> methods that do not allow insertion or removal of elements. A custom move assignment operator is implemented to allow efficient construction of the V4L2ControlInfoMap. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-13libcamera: v4l2_controls: Remove V4L2ControlInfo type fieldLaurent Pinchart
The V4L2ControlInfo type field stores the V4L2 control type. It partly duplicates the V4L2ControlInfo id().type() that stores the corresponding libcamera control type. The two fields are not strictly identical, but having two types doesn't provide us with any extra value. As this is confusing, remove the V4L2ControlInfo type field. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-13libcamera: v4l2_controls: Add V4L2ControlIdLaurent Pinchart
Add a V4L2 specialisation of the ControlId class, in order to construct a ControlId from a v4l2_query_ext_ctrl. The V4L2ControlId is embedded in V4L2ControlInfo, and thus needs to be copyable to allow for V4L2ControlInfo to be passed to IPAs. The ControlId copy constructor and assignment operators are thus restored, but made protected to avoid the Control class being copyable. This is needed in order to use ControlList for V4L2 controls, as ControlList requires ControlId instances for all controls. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-13libcamera: v4l2_device: Avoid copy of V4L2ControlInfoLaurent Pinchart
The V4L2Device::listControls() method creates an instance of V4L2ControlInfo and then inserts it in the device's list of controls. The insertion uses std::map::emplace(), but passes the V4L2ControlInfo, resulting in a copy being performed (using the copy constructor of V4L2ControlInfo). Optimise this by really constructing the V4L2ControlInfo in-place. The use of std::piecewise_construct is required for gcc-5 that seems to have trouble with std::map::emplace() on non-copyable values in this case. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Jacopo Mondi <jacopo@jmondi.org> Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-13libcamera: controls: Support accessing controls by numerical IDLaurent Pinchart
The ControlList class has template get() and set() methods to get and set control values. The methods require a reference to a Control instance, which is only available when calling them with a hardcoded control. In order to support usage of ControlList for V4L2 controls, as well as serialisation and deserialisation of ControlList, we need a way to get and set control values based on a control numerical ID. Add new contains(), get() and set() overload methods to do so. As this change prepares the ControlList to be used for other objects than camera, update its documentation accordingly. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-13libcamera: controls: Store control name in ControlIdLaurent Pinchart
The ControlId class stores a pointer to the control name. This works fine for statically-defined controls, but requires code that allocates controls dynamically (for instance based on control discovery on a V4L2 device) to keep a list of control names in separate storage. To ease usage of dynamically allocated controls, store a copy of the control name string in the ControlId class. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-13libcamera: controls: Default ControlList validator argument to nullptrLaurent Pinchart
The ControlList constructor takes a validator pointer that can be null. Set its default value to nullptr to simplify code in users of ControlList. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-13libcamera: controls: Add comparison operators for ControlValueLaurent Pinchart
Add equality and non equality comparison operators for the ControlValue class. This simplifies code that deals with control values. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-13libcamera: control_ids: Generate map of all supported controlsLaurent Pinchart
In order to deserialise a ControlList, we will need to lookup ControlId instances based on their numerical ID. Generate a global map from the controls definitions to support such a lookup. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-13libcamera: control_ids: Fix documentation for controls namespaceLaurent Pinchart
The controls namespace isn't documenting, making it impossible to reference the variables it contains. Furthermore, within the documentation page for the control_ids.h file, links from overview to detailed variable documentation are broken for the same reason. Both issues can be fixed by documenting the controls namespace. Unfortunately doxygen then fails to parse the initialisers for the controls global variables correctly and considers them as functions. To work around this, modify the control_ids.cpp generation script to hide the variables from doxygen, but still expose their documentation. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-13libcamera: pipeline: rkisp1: Avoid copy assignment of V4L2 control mapLaurent Pinchart
Use the std::map::emplace() method to avoid unnecessary creation of an empty V4L2ControlInfoMap folled by a copy assignment. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-11libamera: pipeline: rkisp1: timeline: Fix compilation with gcc-[56]Laurent Pinchart
With gcc 5 and 6, insertion in a std::multimap copies the pair passed as an argument to the insert() method. As the mapped type is a non-copyable std::unique_ptr<>, this fails to compile. Compilation with newer gcc versions succeed due to support for C++-17 and the fix described in https://cplusplus.github.io/LWG/issue2354. To support gcc 5 and 6, fix the issue by using std::multimap::emplace(). Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-11ipa: rkisp1: Avoid unnecessary copyLaurent Pinchart
Use const references in a for loop to avoid an unnecessary copy. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-11libcamera: pipeline: rkisp1: Attach to an IPANiklas Söderlund
Add the plumbing to the pipeline handler to interact with an IPA module. This change makes the usage of an IPA module mandatory for the rkisp1 pipeline. The RkISP1 pipeline handler makes use of a timeline component to schedule actions. This might be useful for other pipeline handlers going forward so keep the generic timeline implementation separate to make it easy to break out. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-10-11libcamera: ipa: rkisp1: Add basic control of auto exposureNiklas Söderlund
Add an IPA which controls the exposure time and analog gain for a sensor connected to the rkisp1 pipeline. The IPA supports turning AE on and off and informing the camera of the status of the AE control loop. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-10-11libcamera: ipa: Extend to support IPA interactionsNiklas Söderlund
The IPA interface needs to support interactions with the pipeline; add interfaces to control the sensor and handling of request ISP parameters and statistics. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-10-10libcamera: request: Add metadata informationNiklas Söderlund
A new ControlList container is needed to hold metadata coming out of the IPA. The list of supported controls in this list is expected to grow, so for now do not add a validator for the list. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-10-10libcamera: controls: Add AeLocked controlNiklas Söderlund
Add a control to report lock status of the Auto Exposure algorithm. The idea is that if an AE algorithm is running the control shall be added to the metadata control list. If the AE algorithm is locked the value shall be set to true, if it's converging it shall be set to false. If the AE algorithm is not running the control shall not be present in the metadata control list. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-10-10libcamera: controls: Add AeEnable controlNiklas Söderlund
Add a control to enable/disable Auto Exposure. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-10-10libcamera: controls: Fix documentation of AwbEnableNiklas Söderlund
Align the wording of the documentation for the AwbEnable control with review comments for similar controls. Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-10-10libcamera: pipeline: Move IPA from pipeline to camera dataNiklas Söderlund
The IPA acts on a camera and not on a pipeline which can expose more then one camera. Move the IPA reference to the CameraData. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-10-08ipa: vimc: Add support for tracing operationsJacopo Mondi
Add support to the dummy VIMC IPA for tracing operation by using a FIFO channel that will be used by the IPA Interface test to verify communications with the IPA. At the moment only add support for the init() operation as it's the only defined one. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-10-08ipa: meson: Give IPAs access to internal libcamera APIsJacopo Mondi
Open source IPA implementations can benefit from usage of libcamera internal APIs. Allow this by compiling against the internal headers and linking against libcamera. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-10-08ipa: vimc: Rename ipa_dummy to ipa_vimcJacopo Mondi
The DummyIPA is actually a test IPA module for the virtual media controller driver VIMC. Rename it accordingly to its usage. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-10-07libcamera: timer: Add start() method with absolute deadlineLaurent Pinchart
The Timer class is started using a timer duration. To help callers that require waiting for an absolute deadline, add a start() overload that takes a std::chrono::steady_clock::time_point value. This will be used by IPAs. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-10-07libcamera: timer: Forbid starting or stopping timer from another threadLaurent Pinchart
Starting or stopping a timer from a different thread than the one it belongs to is inherently racy. Disallow it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-10-07libcamera: timer: Allow restarting a timer before expirationLaurent Pinchart
The Timer API allows restarting a timer before expiration. This isn't correctly implemented, fix it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-07libcamera: timer: Don't reset deadline after time outLaurent Pinchart
Users of the Timer class may benefit from retrieving the timer deadline after it times out. This is currently not possible as the deadline is reset to 0 when the timer times out or is stopped. Fix this by not resetting the deadline, and adding a new running_ field to the Timer class to implement isRunning(). Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-10-07libcamera: timer: Remove the interval() methodLaurent Pinchart
The libcamera timers are single-shot timers. They are started with a duration, but fire once only, not based on an interval. Remove the interval concept by removing the interval() method, and rename other occurences of interval to duration. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-10-05libcamera: controls: Use ControlValidator to validate ControlListLaurent Pinchart
Replace the manual validation of controls against a Camera with usage of the new ControlValidator interface. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-05libcamera: Add ControlValidator implementation for CameraLaurent Pinchart
Add a new CameraControlValidator class that implements the ControlValidator interface for a Camera object. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-05libcamera: Add ControlValidatorLaurent Pinchart
The new abstract ControlValidator class defines an interface that will be used by the ControlList class to validate controls. This will allow controls to the validated against different object types, such as Camera and V4L2Device. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-05libcamera: v4l2_controls: Use the ControlRange class for control infoLaurent Pinchart
Use the ControlRange class to express the range of a V4L2 control, replacing the open-coded minimum and maximum fields in the V4L2ControlInfo class. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>