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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* v4l2_subdevice_test.cpp - VIMC-based V4L2 subdevice test
*/
#include <iostream>
#include <string.h>
#include <sys/stat.h>
#include "device_enumerator.h"
#include "media_device.h"
#include "v4l2_subdevice.h"
#include "v4l2_subdevice_test.h"
using namespace std;
using namespace libcamera;
/*
* This test runs on vimc media device. For a description of vimc, in the
* context of libcamera testing, please refer to
* 'test/media_device/media_device_link_test.cpp' file.
*
* If the vimc module is not loaded, the test gets skipped.
*/
int V4L2SubdeviceTest::init()
{
enumerator_ = DeviceEnumerator::create();
if (!enumerator_) {
cerr << "Failed to create device enumerator" << endl;
return TestFail;
}
if (enumerator_->enumerate()) {
cerr << "Failed to enumerate media devices" << endl;
return TestFail;
}
DeviceMatch dm("vimc");
media_ = std::move(enumerator_->search(dm));
if (!media_) {
cerr << "Unable to find \'vimc\' media device node" << endl;
return TestSkip;
}
media_->acquire();
int ret = media_->open();
if (ret) {
cerr << "Unable to open media device: " << media_->deviceNode()
<< ": " << strerror(ret) << endl;
media_->release();
return TestSkip;
}
MediaEntity *videoEntity = media_->getEntityByName("Scaler");
if (!videoEntity) {
cerr << "Unable to find media entity 'Scaler'" << endl;
media_->release();
return TestFail;
}
scaler_ = new V4L2Subdevice(videoEntity);
ret = scaler_->open();
if (ret) {
cerr << "Unable to open video subdevice "
<< scaler_->entity()->deviceNode() << endl;
media_->release();
return TestSkip;
}
return 0;
}
void V4L2SubdeviceTest::cleanup()
{
media_->release();
delete scaler_;
}
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