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/*
* Copyright (C) 2019 The LineageOS 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 <dlfcn.h>
#define LOG_TAG "vendor.lineage.livedisplay@2.0-service-legacymm"
#include <android-base/logging.h>
#include <binder/ProcessState.h>
#include <hidl/HidlTransportSupport.h>
#include "DisplayModes.h"
#include "PictureAdjustment.h"
#define MM_DISP_LIB "libmm-disp-apis.so"
using android::OK;
using android::sp;
using android::status_t;
using android::hardware::configureRpcThreadpool;
using android::hardware::joinRpcThreadpool;
using ::vendor::lineage::livedisplay::V2_0::IDisplayModes;
using ::vendor::lineage::livedisplay::V2_0::IPictureAdjustment;
using ::vendor::lineage::livedisplay::V2_0::legacymm::DisplayModes;
using ::vendor::lineage::livedisplay::V2_0::legacymm::PictureAdjustment;
int main() {
// Vendor backend
void* libHandle = nullptr;
int (*disp_api_init)(int32_t) = nullptr;
// HIDL frontend
sp<DisplayModes> dm;
sp<PictureAdjustment> pa;
status_t status = OK;
LOG(INFO) << "LiveDisplay HAL service is starting.";
libHandle = dlopen(MM_DISP_LIB, RTLD_NOW);
if (libHandle == nullptr) {
LOG(ERROR) << "Can not get " << MM_DISP_LIB << " (" << dlerror() << ")";
goto shutdown;
}
disp_api_init = reinterpret_cast<int (*)(int32_t)>(dlsym(libHandle, "disp_api_init"));
if (disp_api_init == nullptr) {
LOG(ERROR) << "Can not get disp_api_init from " << MM_DISP_LIB << " (" << dlerror() << ")";
goto shutdown;
}
status = disp_api_init(0);
if (status != OK) {
LOG(ERROR) << "Can not initialize " << MM_DISP_LIB << " (" << status << ")";
goto shutdown;
}
dm = new DisplayModes(libHandle);
if (dm == nullptr) {
LOG(ERROR) << "Can not create an instance of LiveDisplay HAL DisplayModes Iface, exiting.";
goto shutdown;
}
pa = new PictureAdjustment(libHandle);
if (pa == nullptr) {
LOG(ERROR) << "Can not create an instance of LiveDisplay HAL PictureAdjustment Iface, "
"exiting.";
goto shutdown;
}
if (!dm->isSupported() && !pa->isSupported()) {
// Backend isn't ready yet, so restart and try again
goto shutdown;
}
configureRpcThreadpool(1, true /*callerWillJoin*/);
if (dm->isSupported()) {
status = dm->registerAsService();
if (status != OK) {
LOG(ERROR) << "Could not register service for LiveDisplay HAL DisplayModes Iface ("
<< status << ")";
goto shutdown;
}
}
if (pa->isSupported()) {
status = pa->registerAsService();
if (status != OK) {
LOG(ERROR) << "Could not register service for LiveDisplay HAL PictureAdjustment Iface ("
<< status << ")";
goto shutdown;
}
}
LOG(INFO) << "LiveDisplay HAL service is ready.";
joinRpcThreadpool();
// Should not pass this line
shutdown:
// Cleanup what we started
if (disp_api_init != nullptr) {
disp_api_init(1);
}
if (libHandle != nullptr) {
dlclose(libHandle);
}
// In normal operation, we don't expect the thread pool to shutdown
LOG(ERROR) << "LiveDisplay HAL service is shutting down.";
return 1;
}
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