# SPDX-License-Identifier: CC0-1.0 ipc_tests = [ ['unixsocket_ipc', 'unixsocket_ipc.cpp'], ['unixsocket', 'unixsocket.cpp'], ] foreach t : ipc_tests exe = executable(t[0], t[1], dependencies : libcamera_private, link_with : test_libraries, include_directories : test_includes_internal) test(t[0], exe, suite : 'ipc') endforeach Git repository'/>
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path: root/src/v4l2/v4l2_camera_proxy.h
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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * v4l2_camera_proxy.h - Proxy to V4L2 compatibility camera
 */

#ifndef __V4L2_CAMERA_PROXY_H__
#define __V4L2_CAMERA_PROXY_H__

#include <linux/videodev2.h>
#include <map>
#include <memory>
#include <set>
#include <sys/mman.h>
#include <sys/types.h>
#include <vector>

#include <libcamera/camera.h>

#include "v4l2_camera.h"

using namespace libcamera;

class V4L2CameraFile;

class V4L2CameraProxy
{
public:
	V4L2CameraProxy(unsigned int index, std::shared_ptr<Camera> camera);

	int open(V4L2CameraFile *file);
	void close(V4L2CameraFile *file);
	void *mmap(void *addr, size_t length, int prot, int flags, off64_t offset);
	int munmap(void *addr, size_t length);

	int ioctl(V4L2CameraFile *file, unsigned long request, void *arg);

private:
	bool validateBufferType(uint32_t type);
	bool validateMemoryType(uint32_t memory);
	void setFmtFromConfig(StreamConfiguration &streamConfig);
	void querycap(std::shared_ptr<Camera> camera);
	int tryFormat(struct v4l2_format *arg);
	enum v4l2_priority maxPriority();
	void updateBuffers();
	void freeBuffers();

	int vidioc_querycap(struct v4l2_capability *arg);
	int vidioc_enum_framesizes(V4L2CameraFile *file, struct v4l2_frmsizeenum *arg);
	int vidioc_enum_fmt(V4L2CameraFile *file, struct v4l2_fmtdesc *arg);
	int vidioc_g_fmt(V4L2CameraFile *file, struct v4l2_format *arg);
	int vidioc_s_fmt(V4L2CameraFile *file, struct v4l2_format *arg);
	int vidioc_try_fmt(V4L2CameraFile *file, struct v4l2_format *arg);
	int vidioc_g_priority(V4L2CameraFile *file, enum v4l2_priority *arg);
	int vidioc_s_priority(V4L2CameraFile *file, enum v4l2_priority *arg);
	int vidioc_enuminput(V4L2CameraFile *file, struct v4l2_input *arg);
	int vidioc_g_input(V4L2CameraFile *file, int *arg);
	int vidioc_s_input(V4L2CameraFile *file, int *arg);
	int vidioc_reqbufs(V4L2CameraFile *file, struct v4l2_requestbuffers *arg);