vibrator/cs40l26/service.cpp

/*
 * Copyright (C) 2021 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#include <android/binder_manager.h>
#include <android/binder_process.h>
#include <binder/IServiceManager.h>
#include <binder/ProcessState.h>
#include <log/log.h>

#include "Hardware.h"
#include "VibMgrHwApi.h"
#include "Vibrator.h"

using ::aidl::android::hardware::vibrator::HwApi;
using ::aidl::android::hardware::vibrator::HwCal;
using ::aidl::android::hardware::vibrator::VibMgrHwApi;
using ::aidl::android::hardware::vibrator::Vibrator;
using ::android::defaultServiceManager;
using ::android::ProcessState;
using ::android::sp;
using ::android::String16;

#if !defined(VIBRATOR_NAME)
#define VIBRATOR_NAME "default"
#endif

int main() {
    const char *hwApiPathPrefixDual = std::getenv("HWAPI_PATH_PREFIX_DUAL");
    const char *calFilePath = std::getenv("CALIBRATION_FILEPATH");
    const char *calFilePathDual = std::getenv("CALIBRATION_FILEPATH_DUAL");

    auto hwgpio = VibMgrHwApi::Create();
    if (!hwgpio) {
        return EXIT_FAILURE;
    }
    auto hwApiDef = HwApi::Create();
    if (!hwApiDef) {
        return EXIT_FAILURE;
    }
    auto hwCalDef = HwCal::Create();
    if (!hwCalDef) {
        return EXIT_FAILURE;
    }

    std::shared_ptr<Vibrator> svc;
    // Synchronize base and flip actuator F0.
    // Replace dual cal file path to base and copy the base to dual's path.
    if ((hwApiPathPrefixDual != nullptr) && !setenv("HWAPI_PATH_PREFIX", hwApiPathPrefixDual, 1) &&
        (calFilePathDual != nullptr) && !setenv("CALIBRATION_FILEPATH", calFilePathDual, 1) &&
        !setenv("CALIBRATION_FILEPATH_DUAL", calFilePath, 1)) {
        ALOGD("Init dual HAL: %s", std::getenv("HWAPI_PATH_PREFIX"));
        svc = ndk::SharedRefBase::make<Vibrator>(std::move(hwApiDef), std::move(hwCalDef),
                                                 std::make_unique<HwApi>(),
                                                 std::make_unique<HwCal>(), std::move(hwgpio));
    } else {
        ALOGD("Failed to init dual HAL");
        svc = ndk::SharedRefBase::make<Vibrator>(std::move(hwApiDef), std::move(hwCalDef), nullptr,
                                                 nullptr, std::move(hwgpio));
    }

    const auto svcName = std::string() + svc->descriptor + "/" + VIBRATOR_NAME;

    ProcessState::initWithDriver("/dev/vndbinder");

    auto svcBinder = svc->asBinder();
    binder_status_t status = AServiceManager_addService(svcBinder.get(), svcName.c_str());
    LOG_ALWAYS_FATAL_IF(status != STATUS_OK);

    ProcessState::self()->setThreadPoolMaxThreadCount(1);
    ProcessState::self()->startThreadPool();

    ABinderProcess_setThreadPoolMaxThreadCount(0);
    ABinderProcess_joinThreadPool();

    return EXIT_FAILURE;  // should not reach
}