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2020-07-17tests: v4l2_compat: Fix v4l2-compliance and v4l2-ctl version parsingPaul Elder
v4l2-compliance originally printed the SHA before the version, leading to the indexing that was used previously. Now that the version is printed before the SHA, the indexing is incorrect. Fix this. Although v4l2-ctl doesn't suffer the same issue, it is more correct to use the zeroth index like the v4l2-compliance version check now does, so fix that as well. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-13tests: v4l2_compat: Check v4l2-compliance and v4l2-ctl versionsPaul Elder
v4l2-compliance and v4l2-ctl with version 1.20 and before will fail with v4l2-compat. Check the versions of v4l2-compliance and v4l2-ctl before continuing. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-13tests: v4l2_compat: Prettify failure outputPaul Elder
When a test is being run on a video device, there is output like so: Testing /dev/video0 with uvcvideo driver... and when it succeeds, "success" is appended: Testing /dev/video0 with uvcvideo driver... success On failure, however, the output of v4l2-compliance is printed before "failure" is printed, resulting in the first line of the v4l2-compliance output to be printed on the same line as the message: Testing /dev/video2 with uvcvideo driver... v4l2-compliance SHA: not available, 64 bits <v4l2-compliance output> failure Refactor the code to make "failure" print before the output of the test, to prettify the output upon failure. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-10tests: v4l2_compat: Add test for v4l2_compatPaul Elder
Test the V4L2 compatibility layer by running v4l2-compliance -s on every /dev/video* device. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
generated by cgit v1.2.1 (git 2.18.0) at 2025-02-11 10:40:06 +0000
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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2018, Google Inc.
 *
 * vimc.cpp - Pipeline handler for the vimc device
 */

#include <algorithm>
#include <array>

#include <libcamera/camera.h>
#include <libcamera/request.h>
#include <libcamera/stream.h>

#include "device_enumerator.h"
#include "log.h"
#include "media_device.h"
#include "pipeline_handler.h"
#include "utils.h"
#include "v4l2_device.h"

namespace libcamera {

LOG_DEFINE_CATEGORY(VIMC)

class VimcCameraData : public CameraData
{
public:
	VimcCameraData(PipelineHandler *pipe)
		: CameraData(pipe)
	{
	}

	~VimcCameraData()
	{
		delete video_;
	}

	void bufferReady(Buffer *buffer);

	V4L2Device *video_;
	Stream stream_;
};

class VimcCameraConfiguration : public CameraConfiguration
{
public:
	VimcCameraConfiguration();

	Status validate() override;
};

class PipelineHandlerVimc : public PipelineHandler
{
public:
	PipelineHandlerVimc(CameraManager *manager);

	CameraConfiguration *generateConfiguration(Camera *camera,
		const StreamRoles &roles) override;
	int configure(Camera *camera, CameraConfiguration *config) override;

	int allocateBuffers(Camera *camera,
			    const std::set<Stream *> &streams) override;
	int freeBuffers(Camera *camera,
			const std::set<Stream *> &streams) override;

	int start(Camera *camera) override;
	void stop(Camera *camera) override;

	int queueRequest(Camera *camera, Request *request) override;

	bool match(DeviceEnumerator *enumerator) override;

private:
	VimcCameraData *cameraData(const Camera *camera)
	{
		return static_cast<VimcCameraData *>(
			PipelineHandler::cameraData(camera));
	}
};

VimcCameraConfiguration::VimcCameraConfiguration()
	: CameraConfiguration()
{
}

CameraConfiguration::Status VimcCameraConfiguration::validate()
{
	static const std::array<unsigned int, 3> formats{
		V4L2_PIX_FMT_BGR24,
		V4L2_PIX_FMT_RGB24,
		V4L2_PIX_FMT_ARGB32,
	};

	Status status = Valid;

	if (config_.empty())
		return Invalid;

	/* Cap the number of entries to the available streams. */
	if (config_.size() > 1) {
		config_.resize(1);
		status = Adjusted;
	}

	StreamConfiguration &cfg = config_[0];

	/* Adjust the pixel format. */
	if (std::find(formats.begin(), formats.end(), cfg.pixelFormat) ==
	    formats.end()) {
		LOG(VIMC, Debug) << "Adjusting format to RGB24";
		cfg.pixelFormat = V4L2_PIX_FMT_RGB24;
		status = Adjusted;
	}

	/* Clamp the size based on the device limits. */
	const Size size = cfg.size;

	cfg.size.width = std::max(16U, std::min(4096U, cfg.size.width));
	cfg.size.height = std::max(16U, std::min(2160U, cfg.size.height));

	if (cfg.size != size) {
		LOG(VIMC, Debug)
			<< "Adjusting size to " << cfg.size.toString();
		status = Adjusted;
	}

	cfg.bufferCount = 4;

	return status;
}

PipelineHandlerVimc::PipelineHandlerVimc(CameraManager *manager)
	: PipelineHandler(manager)
{
}

CameraConfiguration *PipelineHandlerVimc::generateConfiguration(Camera *camera,
	const StreamRoles &roles)
{
	CameraConfiguration *config = new VimcCameraConfiguration();

	if (roles.empty())
		return config;

	StreamConfiguration cfg{};
	cfg.pixelFormat = V4L2_PIX_FMT_RGB24;
	cfg.size = { 640, 480 };
	cfg.bufferCount = 4;

	config->addConfiguration(cfg);

	config->validate();

	return config;
}

int PipelineHandlerVimc::configure(Camera *camera, CameraConfiguration *config)
{
	VimcCameraData *data = cameraData(camera);
	StreamConfiguration &cfg = config->at(0);
	int ret;

	V4L2DeviceFormat format = {};
	format.fourcc = cfg.pixelFormat;
	format.size = cfg.size;

	ret = data->video_->setFormat(&format);
	if (ret)
		return ret;

	if (format.size != cfg.size ||
	    format.fourcc != cfg.pixelFormat)
		return -EINVAL;

	cfg.setStream(&data->stream_);

	return 0;
}

int PipelineHandlerVimc::allocateBuffers(Camera *camera,
					 const std::set<Stream *> &streams)
{
	VimcCameraData *data = cameraData(camera);
	Stream *stream = *streams.begin();
	const StreamConfiguration &cfg = stream->configuration();

	LOG(VIMC, Debug) << "Requesting " << cfg.bufferCount << " buffers";

	return data->video_->exportBuffers(&stream->bufferPool());
}

int PipelineHandlerVimc::freeBuffers(Camera *camera,
				     const std::set<Stream *> &streams)
{
	VimcCameraData *data = cameraData(camera);
	return data->video_->releaseBuffers();
}

int PipelineHandlerVimc::start(Camera *camera)
{
	VimcCameraData *data = cameraData(camera);
	return data->video_->streamOn();
}

void PipelineHandlerVimc::stop(Camera *camera)
{
	VimcCameraData *data = cameraData(camera);
	data->video_->streamOff();
	PipelineHandler::stop(camera);
}

int PipelineHandlerVimc::queueRequest(Camera *camera, Request *request)
{
	VimcCameraData *data = cameraData(camera);
	Buffer *buffer = request->findBuffer(&data->stream_);
	if (!buffer) {
		LOG(VIMC, Error)
			<< "Attempt to queue request with invalid stream";

		return -ENOENT;
	}

	int ret = data->video_->queueBuffer(buffer);
	if (ret < 0)
		return ret;

	PipelineHandler::queueRequest(camera, request);

	return 0;
}

bool PipelineHandlerVimc::match(DeviceEnumerator *enumerator)
{
	DeviceMatch dm("vimc");

	dm.add("Raw Capture 0");
	dm.add("Raw Capture 1");
	dm.add("RGB/YUV Capture");
	dm.add("Sensor A");
	dm.add("Sensor B");
	dm.add("Debayer A");
	dm.add("Debayer B");
	dm.add("RGB/YUV Input");
	dm.add("Scaler");

	MediaDevice *media = acquireMediaDevice(enumerator, dm);
	if (!media)
		return false;

	std::unique_ptr<VimcCameraData> data = utils::make_unique<VimcCameraData>(this);

	/* Locate and open the capture video node. */
	data->video_ = new V4L2Device(media->getEntityByName("Raw Capture 1"));
	if (data->video_->open())
		return false;

	data->video_->bufferReady.connect(data.get(), &VimcCameraData::bufferReady);

	/* Create and register the camera. */
	std::set<Stream *> streams{ &data->stream_ };
	std::shared_ptr<Camera> camera = Camera::create(this, "VIMC Sensor B",
							streams);
	registerCamera(std::move(camera), std::move(data));

	return true;
}

void VimcCameraData::bufferReady(Buffer *buffer)
{
	Request *request = queuedRequests_.front();

	pipe_->completeBuffer(camera_, request, buffer);
	pipe_->completeRequest(camera_, request);
}

REGISTER_PIPELINE_HANDLER(PipelineHandlerVimc);

} /* namespace libcamera */
generated by cgit v1.2.1 (git 2.18.0) at 2025-02-11 10:40:06 +0000