5c85e70240
Now that we have a UniqueFD class, the name FileDescriptor is ambiguous. Rename it to SharedFD. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
129 lines
4.0 KiB
Plaintext
129 lines
4.0 KiB
Plaintext
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* \todo Document the interface and remove the related EXCLUDE_PATTERNS entry.
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*/
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module ipa.RPi;
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import "include/libcamera/ipa/core.mojom";
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enum BufferMask {
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MaskID = 0x00ffff,
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MaskStats = 0x010000,
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MaskEmbeddedData = 0x020000,
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MaskBayerData = 0x040000,
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MaskExternalBuffer = 0x100000,
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};
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/* Size of the LS grid allocation. */
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const uint32 MaxLsGridSize = 0x8000;
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struct SensorConfig {
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uint32 gainDelay;
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uint32 exposureDelay;
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uint32 vblankDelay;
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uint32 sensorMetadata;
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};
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struct ISPConfig {
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uint32 embeddedBufferId;
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uint32 bayerBufferId;
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bool embeddedBufferPresent;
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libcamera.ControlList controls;
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};
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struct IPAConfig {
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uint32 transform;
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libcamera.SharedFD lsTableHandle;
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};
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struct StartConfig {
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libcamera.ControlList controls;
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int32 dropFrameCount;
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};
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interface IPARPiInterface {
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init(libcamera.IPASettings settings)
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=> (int32 ret, SensorConfig sensorConfig);
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start(libcamera.ControlList controls) => (StartConfig startConfig);
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stop();
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/**
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* \fn configure()
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* \brief Configure the IPA stream and sensor settings
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* \param[in] sensorInfo Camera sensor information
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* \param[in] streamConfig Configuration of all active streams
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* \param[in] entityControls Controls provided by the pipeline entities
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* \param[in] ipaConfig Pipeline-handler-specific configuration data
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* \param[out] controls Controls to apply by the pipeline entity
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*
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* This function shall be called when the camera is configured to inform
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* the IPA of the camera's streams and the sensor settings.
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*
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* The \a sensorInfo conveys information about the camera sensor settings that
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* the pipeline handler has selected for the configuration.
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*
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* The \a ipaConfig and \a controls parameters carry data passed by the
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* pipeline handler to the IPA and back.
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*/
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configure(libcamera.IPACameraSensorInfo sensorInfo,
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map<uint32, libcamera.IPAStream> streamConfig,
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map<uint32, libcamera.ControlInfoMap> entityControls,
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IPAConfig ipaConfig)
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=> (int32 ret, libcamera.ControlList controls);
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/**
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* \fn mapBuffers()
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* \brief Map buffers shared between the pipeline handler and the IPA
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* \param[in] buffers List of buffers to map
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*
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* This function informs the IPA module of memory buffers set up by the
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* pipeline handler that the IPA needs to access. It provides dmabuf
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* file handles for each buffer, and associates the buffers with unique
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* numerical IDs.
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*
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* IPAs shall map the dmabuf file handles to their address space and
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* keep a cache of the mappings, indexed by the buffer numerical IDs.
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* The IDs are used in all other IPA interface functions to refer to
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* buffers, including the unmapBuffers() function.
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*
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* All buffers that the pipeline handler wishes to share with an IPA
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* shall be mapped with this function. Buffers may be mapped all at once
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* with a single call, or mapped and unmapped dynamically at runtime,
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* depending on the IPA protocol. Regardless of the protocol, all
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* buffers mapped at a given time shall have unique numerical IDs.
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*
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* The numerical IDs have no meaning defined by the IPA interface, and
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* should be treated as opaque handles by IPAs, with the only exception
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* that ID zero is invalid.
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*
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* \sa unmapBuffers()
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*/
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mapBuffers(array<libcamera.IPABuffer> buffers);
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/**
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* \fn unmapBuffers()
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* \brief Unmap buffers shared by the pipeline to the IPA
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* \param[in] ids List of buffer IDs to unmap
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*
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* This function removes mappings set up with mapBuffers(). Numerical
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* IDs of unmapped buffers may be reused when mapping new buffers.
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*
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* \sa mapBuffers()
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*/
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unmapBuffers(array<uint32> ids);
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[async] signalStatReady(uint32 bufferId);
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[async] signalQueueRequest(libcamera.ControlList controls);
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[async] signalIspPrepare(ISPConfig data);
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};
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interface IPARPiEventInterface {
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statsMetadataComplete(uint32 bufferId, libcamera.ControlList controls);
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runIsp(uint32 bufferId);
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embeddedComplete(uint32 bufferId);
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setIspControls(libcamera.ControlList controls);
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setDelayedControls(libcamera.ControlList controls);
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};
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