102 lines
3.4 KiB
C++
102 lines
3.4 KiB
C++
/*
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* Copyright 2021 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "TunerHelper.h"
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#include <aidl/android/media/tv/tunerresourcemanager/ITunerResourceManager.h>
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#include <android/binder_manager.h>
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#include <android/content/pm/IPackageManagerNative.h>
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#include <binder/IServiceManager.h>
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#include <utils/Log.h>
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using ::aidl::android::media::tv::tunerresourcemanager::ITunerResourceManager;
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using ::android::defaultServiceManager;
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using ::android::IBinder;
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using ::android::interface_cast;
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using ::android::IServiceManager;
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using ::android::sp;
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using ::android::binder::Status;
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using ::android::content::pm::IPackageManagerNative;
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namespace aidl {
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namespace android {
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namespace media {
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namespace tv {
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namespace tuner {
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// System Feature defined in PackageManager
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static const ::android::String16 FEATURE_TUNER(::android::String16("android.hardware.tv.tuner"));
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int32_t TunerHelper::sResourceRequestCount = 0;
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bool TunerHelper::checkTunerFeature() {
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sp<IServiceManager> serviceMgr = defaultServiceManager();
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sp<IPackageManagerNative> packageMgr;
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if (serviceMgr.get() == nullptr) {
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ALOGE("%s: Cannot find service manager", __func__);
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return false;
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}
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sp<IBinder> binder = serviceMgr->waitForService(String16("package_native"));
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packageMgr = interface_cast<IPackageManagerNative>(binder);
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if (packageMgr != nullptr) {
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bool hasFeature = false;
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Status status = packageMgr->hasSystemFeature(FEATURE_TUNER, 0, &hasFeature);
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if (!status.isOk()) {
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ALOGE("%s: hasSystemFeature failed: %s", __func__, status.exceptionMessage().c_str());
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return false;
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}
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if (!hasFeature) {
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ALOGD("Current device does not support tuner feaure.");
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return false;
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}
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} else {
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ALOGD("%s: Cannot find package manager.", __func__);
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return false;
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}
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return true;
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}
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// TODO: update Demux, Descrambler.
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void TunerHelper::updateTunerResources(const vector<TunerFrontendInfo>& feInfos,
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const vector<int32_t>& lnbHandles) {
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::ndk::SpAIBinder binder(AServiceManager_waitForService("tv_tuner_resource_mgr"));
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shared_ptr<ITunerResourceManager> tunerRM = ITunerResourceManager::fromBinder(binder);
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if (tunerRM == nullptr) {
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return;
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}
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tunerRM->setFrontendInfoList(feInfos);
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tunerRM->setLnbInfoList(lnbHandles);
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}
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// TODO: create a map between resource id and handles.
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int TunerHelper::getResourceIdFromHandle(int resourceHandle, int /*type*/) {
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return (resourceHandle & 0x00ff0000) >> 16;
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}
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int TunerHelper::getResourceHandleFromId(int id, int resourceType) {
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// TODO: build up randomly generated id to handle mapping
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return (resourceType & 0x000000ff) << 24 | (id << 16) | (sResourceRequestCount++ & 0xffff);
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}
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} // namespace tuner
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} // namespace tv
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} // namespace media
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} // namespace android
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} // namespace aidl
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