/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2019, Google Inc. * * ipu3_pipeline_test.cpp - Intel IPU3 pipeline test */ #include <iostream> #include <sys/stat.h> #include <sys/types.h> #include <unistd.h> #include <libcamera/camera.h> #include <libcamera/camera_manager.h> #include "libcamera/internal/device_enumerator.h" #include "libcamera/internal/media_device.h" #include "libcamera/internal/media_object.h" #include "test.h" using namespace std; using namespace libcamera; /* * Verify that the Intel IPU3 pipeline handler gets matched and cameras * are enumerated correctly. * * The test is supposed to be run on an IPU3 platform, otherwise it gets * skipped. * * The test lists all cameras registered in the system, if any camera is * available at all. */ class IPU3PipelineTest : public Test { protected: int init(); int run(); void cleanup(); private: CameraManager *cameraManager_; unsigned int sensors_; }; int IPU3PipelineTest::init() { unique_ptr<DeviceEnumerator> 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 imgu_dm("ipu3-imgu"); DeviceMatch cio2_dm("ipu3-cio2"); if (!enumerator->search(imgu_dm)) { cerr << "Failed to find IPU3 IMGU: test skip" << endl; return TestSkip; } std::shared_ptr<MediaDevice> cio2 = enumerator->search(cio2_dm); if (!cio2) { cerr << "Failed to find IPU3 CIO2: test skip" << endl; return TestSkip; } /* * Camera sensor are connected to the CIO2 unit. * Count how many sensors are connected in the system * and later verify this matches the number of registered * cameras. */ int ret = cio2->populate(); if (ret) { cerr << "Failed to populate media device " << cio2->deviceNode() << endl; return TestFail; } sensors_ = 0; const vector<MediaEntity *> &entities = cio2->entities(); for (MediaEntity *entity : entities) { if (entity->function() == MEDIA_ENT_F_CAM_SENSOR) sensors_++; } enumerator.reset(nullptr); cameraManager_ = new CameraManager(); ret = cameraManager_->start(); if (ret) { cerr << "Failed to start the CameraManager" << endl; return TestFail; } return 0; } int IPU3PipelineTest::run() { auto cameras = cameraManager_->cameras(); for (const std::shared_ptr<Camera> &cam : cameras) cout << "Found camera '" << cam->id() << "'" << endl; if (cameras.size() != sensors_) { cerr << cameras.size() << " cameras registered, but " << sensors_ << " were expected" << endl; return TestFail; } return TestPass; } void IPU3PipelineTest::cleanup() { cameraManager_->stop(); delete cameraManager_; } TEST_REGISTER(IPU3PipelineTest)