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/* 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 "libcamera/internal/device_enumerator.h"
#include "libcamera/internal/ipa_manager.h"
#include "libcamera/internal/ipa_module.h"
#include "libcamera/internal/pipeline_handler.h"
#include "libcamera/internal/thread.h"
#include "test.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. */
std::string conf = ipa_->configurationFile("vimc.conf");
int ret = ipa_->init(IPASettings{ conf });
if (ret < 0) {
cerr << "IPA interface init() failed" << endl;
return TestFail;
}
timer.start(1000);
while (timer.isRunning() && trace_ != IPAOperationInit)
dispatcher->processEvents();
if (trace_ != IPAOperationInit) {
cerr << "Failed to test IPA initialization sequence"
<< endl;
return TestFail;
}
/* Test start of IPA module. */
ipa_->start();
timer.start(1000);
while (timer.isRunning() && trace_ != IPAOperationStart)
dispatcher->processEvents();
if (trace_ != IPAOperationStart) {
cerr << "Failed to test IPA start sequence" << endl;
return TestFail;
}
/* Test stop of IPA module. */
ipa_->stop();
timer.start(1000);
while (timer.isRunning() && trace_ != IPAOperationStop)
dispatcher->processEvents();
if (trace_ != IPAOperationStop) {
cerr << "Failed to test IPA stop 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<IPAProxy> ipa_;
enum IPAOperationCode trace_;
EventNotifier *notifier_;
int fd_;
};
TEST_REGISTER(IPAInterfaceTest)
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