include/libcamera/ipa/vimc.mojom

/* SPDX-License-Identifier: LGPL-2.1-or-later */

/*
 * \todo Document the interface and remove the related EXCLUDE_PATTERNS entry.
 */

module ipa.vimc;

import "include/libcamera/ipa/core.mojom";

const string VimcIPAFIFOPath = "/tmp/libcamera_ipa_vimc_fifo";

enum IPAOperationCode {
	IPAOperationNone,
	IPAOperationInit,
	IPAOperationStart,
	IPAOperationStop,
};

interface IPAVimcInterface {
	init(libcamera.IPASettings settings) => (int32 ret);

	configure(libcamera.IPACameraSensorInfo sensorInfo,
		  map<uint32, libcamera.IPAStream> streamConfig,
		  map<uint32, libcamera.ControlInfoMap> entityControls) => (int32 ret);

	start() => (int32 ret);
	stop();

	mapBuffers(array<libcamera.IPABuffer> buffers);
	unmapBuffers(array<uint32> ids);

	/*
	 * The vimc driver doesn't use parameters buffers. To maximize coverage
	 * of unit tests that rely on the VIMC pipeline handler, we still define
	 * interface functions that mimick how other pipeline handlers typically
	 * handle parameters at runtime.
	 */
	[async] fillParams(uint32 frame, uint32 bufferId);
	[async] processControls(uint32 frame, libcamera.ControlList controls);
};

interface IPAVimcEventInterface {
	paramsFilled(uint32 bufferId);
};