/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2019, Google Inc. * * ipa_interface_test.cpp - Test the IPA interface */ #include <fcntl.h> #include <iostream> #include <string.h> #include <sys/stat.h> #include <sys/types.h> #include <unistd.h> #include <libcamera/event_dispatcher.h> #include <libcamera/event_notifier.h> #include <libcamera/timer.h> #include <ipa/ipa_vimc.h> #include "device_enumerator.h" #include "ipa_manager.h" #include "ipa_module.h" #include "pipeline_handler.h" #include "test.h" #include "thread.h" using namespace std; using namespace libcamera; class IPAInterfaceTest : public Test, public Object { public: IPAInterfaceTest() : trace_(IPAOperationNone), notifier_(nullptr), fd_(-1) { } ~IPAInterfaceTest() { delete notifier_; } protected: int init() override { /* Create a pipeline handler for vimc. */ std::vector<PipelineHandlerFactory *> &factories = PipelineHandlerFactory::factories(); for (PipelineHandlerFactory *factory : factories) { if (factory->name() == "PipelineHandlerVimc") { pipe_ = factory->create(nullptr); break; } } if (!pipe_) { cerr << "Vimc pipeline not found" << endl; return TestPass; } /* Create and open the communication FIFO. */ int ret = mkfifo(VIMC_IPA_FIFO_PATH, S_IRUSR | S_IWUSR); if (ret) { ret = errno; cerr << "Failed to create IPA test FIFO at '" << VIMC_IPA_FIFO_PATH << "': " << strerror(ret) << endl; return TestFail; } ret = open(VIMC_IPA_FIFO_PATH, O_RDONLY | O_NONBLOCK); if (ret < 0) { ret = errno; cerr << "Failed to open IPA test FIFO at '" << VIMC_IPA_FIFO_PATH << "': " << strerror(ret) << endl; unlink(VIMC_IPA_FIFO_PATH); return TestFail; } fd_ = ret; notifier_ = new EventNotifier(fd_, EventNotifier::Read, this); notifier_->activated.connect(this, &IPAInterfaceTest::readTrace); return TestPass; } int run() override { EventDispatcher *dispatcher = thread()->eventDispatcher(); Timer timer; ipa_ = IPAManager::instance()->createIPA(pipe_.get(), 0, 0); if (!ipa_) { cerr << "Failed to create VIMC IPA interface" << endl; return TestFail; } /* Test initialization of IPA module. */ ipa_->init(); timer.start(1000); while (timer.isRunning() && trace_ != IPAOperationInit) dispatcher->processEvents(); if (trace_ != IPAOperationInit) { cerr << "Failed to test IPA initialization sequence" << endl; return TestFail; } return TestPass; } void cleanup() override { close(fd_); unlink(VIMC_IPA_FIFO_PATH); } private: void readTrace(EventNotifier *notifier) { ssize_t s = read(notifier->fd(), &trace_, sizeof(trace_)); if (s < 0) { int ret = errno; cerr << "Failed to read from IPA test FIFO at '" << VIMC_IPA_FIFO_PATH << "': " << strerror(ret) << endl; trace_ = IPAOperationNone; } } std::shared_ptr<PipelineHandler> pipe_; std::unique_ptr<IPAInterface> ipa_; enum IPAOperationCode trace_; EventNotifier *notifier_; int fd_; }; TEST_REGISTER(IPAInterfaceTest)