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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2021-06-09 00:27:14 +0300
committerUmang Jain <umang.jain@ideasonboard.com>2021-06-09 10:47:27 +0530
commit529a3c4e43f68576ba4a09d0d8a8e271a211a200 (patch)
tree8870d121a0769e66497ada32b1e5571e6cc6eda6 /utils/gen-ipa-priv-key.sh
parent6914fc487f6a861fcce295f37ffe8a5079921b0d (diff)
ipa: ipu3: Fix struct/class mismatch in forward declaration
The ipu3_agc.h forward-declares the IPACameraSensorInfo structure, but incorrectly declares it as a class. This causes a compilation error with clang: include/libcamera/ipa/core_ipa_interface.h:24:1: error: 'IPACameraSensorInfo' defined as a struct here but previously declared as a class; this is valid, but may result in linker errors under the Microsoft C++ ABI [-Werror,-Wmismatched-tags] struct IPACameraSensorInfo ^ ../../src/ipa/ipu3/ipu3_agc.h:21:1: note: did you mean struct here? class IPACameraSensorInfo; ^~~~~ struct Fix it. Fixes: 384a53d3cdf7 ("ipa: ipu3: Calculate line duration from IPACameraSensorInfo") Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Tested-by: Umang Jain <umang.jain@ideasonboard.com> Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2018, Google Inc.
 *
 * camera_manager.h - Camera management
 */

#include <libcamera/camera_manager.h>

#include <condition_variable>
#include <map>

#include <libcamera/camera.h>
#include <libcamera/event_dispatcher.h>

#include "libcamera/internal/device_enumerator.h"
#include "libcamera/internal/event_dispatcher_poll.h"
#include "libcamera/internal/log.h"
#include "libcamera/internal/pipeline_handler.h"
#include "libcamera/internal/thread.h"
#include "libcamera/internal/utils.h"

/**
 * \file camera_manager.h
 * \brief The camera manager
 */

namespace libcamera {

LOG_DEFINE_CATEGORY(Camera)

class CameraManager::Private : public Thread
{
public:
	Private(CameraManager *cm);

	int start();
	void addCamera(std::shared_ptr<Camera> &camera, dev_t devnum);
	void removeCamera(Camera *camera);

	/*
	 * This mutex protects
	 *
	 * - initialized_ and status_ during initialization
	 * - cameras_ and camerasByDevnum_ after initialization
	 */
	Mutex mutex_;
	std::vector<std::shared_ptr<Camera>> cameras_;
	std::map<dev_t, std::weak_ptr<Camera>> camerasByDevnum_;

protected:
	void run() override;

private:
	int init();
	void cleanup();

	CameraManager *cm_;

	std::condition_variable cv_;
	bool initialized_;
	int status_;

	std::vector<std::shared_ptr<PipelineHandler>> pipes_;
	std::unique_ptr<DeviceEnumerator> enumerator_;
};

CameraManager::Private::Private(CameraManager *cm)
	: cm_(cm), initialized_(false)
{
}

int CameraManager::Private::start()
{
	int status;

	/* Start the thread and wait for initialization to complete. */
	Thread::start();

	{
		MutexLocker locker(mutex_);
		cv_.wait(locker, [&] { return initialized_; });
		status = status_;
	}

	/* If a failure happened during initialization, stop the thread. */
	if (status < 0) {
		exit();
		wait();
		return status;
	}