| /** |
| * Copyright (C) 2017 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. |
| */ |
| |
| #define LOG_TAG "radio.TunerCallback.jni" |
| #define LOG_NDEBUG 0 |
| |
| #include "com_android_server_radio_Tuner_TunerCallback.h" |
| |
| #include "com_android_server_radio_convert.h" |
| #include "com_android_server_radio_Tuner.h" |
| |
| #include <core_jni_helpers.h> |
| #include <utils/Log.h> |
| #include <JNIHelp.h> |
| |
| namespace android { |
| namespace server { |
| namespace radio { |
| namespace TunerCallback { |
| |
| using hardware::Return; |
| using hardware::hidl_vec; |
| |
| namespace V1_0 = hardware::broadcastradio::V1_0; |
| namespace V1_1 = hardware::broadcastradio::V1_1; |
| |
| using V1_0::BandConfig; |
| using V1_0::MetaData; |
| using V1_0::Result; |
| using V1_1::ITunerCallback; |
| using V1_1::ProgramListResult; |
| |
| static JavaVM *gvm = nullptr; |
| |
| static struct { |
| struct { |
| jclass clazz; |
| jfieldID nativeContext; |
| jmethodID handleHwFailure; |
| jmethodID onError; |
| jmethodID onConfigurationChanged; |
| jmethodID onProgramInfoChanged; |
| } TunerCallback; |
| } gjni; |
| |
| // from frameworks/base/core/java/android/hardware/radio/RadioTuner.java |
| enum class TunerError : jint { |
| HARDWARE_FAILURE = 0, |
| SERVER_DIED = 1, |
| CANCELLED = 2, |
| SCAN_TIMEOUT = 3, |
| CONFIG = 4, |
| }; |
| |
| static Mutex gContextMutex; |
| |
| class NativeCallback : public ITunerCallback { |
| jobject mJTuner; |
| jobject mJCallback; |
| NativeCallbackThread mCallbackThread; |
| HalRevision mHalRev; |
| |
| DISALLOW_COPY_AND_ASSIGN(NativeCallback); |
| |
| public: |
| NativeCallback(JNIEnv *env, jobject jTuner, jobject jCallback, HalRevision halRev); |
| virtual ~NativeCallback(); |
| |
| void detach(); |
| |
| virtual Return<void> hardwareFailure(); |
| virtual Return<void> configChange(Result result, const BandConfig& config); |
| virtual Return<void> tuneComplete(Result result, const V1_0::ProgramInfo& info); |
| virtual Return<void> afSwitch(const V1_0::ProgramInfo& info); |
| virtual Return<void> antennaStateChange(bool connected); |
| virtual Return<void> trafficAnnouncement(bool active); |
| virtual Return<void> emergencyAnnouncement(bool active); |
| virtual Return<void> newMetadata(uint32_t channel, uint32_t subChannel, |
| const hidl_vec<MetaData>& metadata); |
| virtual Return<void> tuneComplete_1_1(Result result, const V1_1::ProgramInfo& info); |
| virtual Return<void> afSwitch_1_1(const V1_1::ProgramInfo& info); |
| virtual Return<void> backgroundScanAvailable(bool isAvailable); |
| virtual Return<void> backgroundScanComplete(ProgramListResult result); |
| virtual Return<void> programListChanged(); |
| }; |
| |
| struct TunerCallbackContext { |
| TunerCallbackContext() {} |
| |
| sp<NativeCallback> mNativeCallback; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(TunerCallbackContext); |
| }; |
| |
| NativeCallback::NativeCallback(JNIEnv *env, jobject jTuner, jobject jCallback, HalRevision halRev) |
| : mCallbackThread(gvm), mHalRev(halRev) { |
| ALOGV("NativeCallback()"); |
| mJTuner = env->NewGlobalRef(jTuner); |
| mJCallback = env->NewGlobalRef(jCallback); |
| } |
| |
| NativeCallback::~NativeCallback() { |
| ALOGV("~NativeCallback()"); |
| |
| // stop callback thread before dereferencing client callback |
| mCallbackThread.stop(); |
| |
| JNIEnv *env = nullptr; |
| gvm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_4); |
| if (env != nullptr) { |
| env->DeleteGlobalRef(mJTuner); |
| env->DeleteGlobalRef(mJCallback); |
| } |
| } |
| |
| void NativeCallback::detach() { |
| // stop callback thread to ignore further calls |
| mCallbackThread.stop(); |
| } |
| |
| Return<void> NativeCallback::hardwareFailure() { |
| mCallbackThread.enqueue([this](JNIEnv *env) { |
| env->CallVoidMethod(mJCallback, gjni.TunerCallback.handleHwFailure); |
| }); |
| |
| return Return<void>(); |
| } |
| |
| Return<void> NativeCallback::configChange(Result result, const BandConfig& config) { |
| ALOGV("configChange(%d)", result); |
| |
| mCallbackThread.enqueue([result, config, this](JNIEnv *env) { |
| if (result == Result::OK) { |
| auto region = Tuner::getRegion(env, mJTuner); |
| auto jConfig = convert::BandConfigFromHal(env, config, region); |
| if (jConfig == nullptr) return; |
| env->CallVoidMethod(mJCallback, gjni.TunerCallback.onConfigurationChanged, |
| jConfig.get()); |
| } else { |
| env->CallVoidMethod(mJCallback, gjni.TunerCallback.onError, TunerError::CONFIG); |
| } |
| }); |
| |
| return Return<void>(); |
| } |
| |
| Return<void> NativeCallback::tuneComplete(Result result, const V1_0::ProgramInfo& info) { |
| ALOGV("tuneComplete(%d)", result); |
| |
| if (mHalRev > HalRevision::V1_0) { |
| ALOGD("1.0 callback was ignored"); |
| return Return<void>(); |
| } |
| |
| V1_1::ProgramInfo info_1_1 { |
| .base = info, |
| }; |
| return tuneComplete_1_1(result, info_1_1); |
| } |
| |
| Return<void> NativeCallback::tuneComplete_1_1(Result result, const V1_1::ProgramInfo& info) { |
| ALOGV("tuneComplete_1_1(%d)", result); |
| |
| mCallbackThread.enqueue([result, info, this](JNIEnv *env) { |
| if (result == Result::OK) { |
| auto jInfo = convert::ProgramInfoFromHal(env, info); |
| if (jInfo == nullptr) return; |
| env->CallVoidMethod(mJCallback, gjni.TunerCallback.onProgramInfoChanged, jInfo.get()); |
| } else { |
| TunerError cause = TunerError::CANCELLED; |
| if (result == Result::TIMEOUT) cause = TunerError::SCAN_TIMEOUT; |
| env->CallVoidMethod(mJCallback, gjni.TunerCallback.onError, cause); |
| } |
| }); |
| |
| return Return<void>(); |
| } |
| |
| Return<void> NativeCallback::afSwitch(const V1_0::ProgramInfo& info) { |
| ALOGE("Not implemented: afSwitch"); |
| return Return<void>(); |
| } |
| |
| Return<void> NativeCallback::afSwitch_1_1(const V1_1::ProgramInfo& info) { |
| ALOGE("Not implemented: afSwitch_1_1"); |
| return Return<void>(); |
| } |
| |
| Return<void> NativeCallback::antennaStateChange(bool connected) { |
| ALOGE("Not implemented: antennaStateChange"); |
| return Return<void>(); |
| } |
| |
| Return<void> NativeCallback::trafficAnnouncement(bool active) { |
| ALOGE("Not implemented: trafficAnnouncement"); |
| return Return<void>(); |
| } |
| |
| Return<void> NativeCallback::emergencyAnnouncement(bool active) { |
| ALOGE("Not implemented: emergencyAnnouncement"); |
| return Return<void>(); |
| } |
| |
| Return<void> NativeCallback::newMetadata(uint32_t channel, uint32_t subChannel, |
| const hidl_vec<MetaData>& metadata) { |
| ALOGE("Not implemented: newMetadata"); |
| return Return<void>(); |
| } |
| |
| Return<void> NativeCallback::backgroundScanAvailable(bool isAvailable) { |
| ALOGE("Not implemented: backgroundScanAvailable"); |
| return Return<void>(); |
| } |
| |
| Return<void> NativeCallback::backgroundScanComplete(ProgramListResult result) { |
| ALOGE("Not implemented: backgroundScanComplete"); |
| return Return<void>(); |
| } |
| |
| Return<void> NativeCallback::programListChanged() { |
| ALOGE("Not implemented: programListChanged"); |
| return Return<void>(); |
| } |
| |
| static TunerCallbackContext& getNativeContext(jlong nativeContextHandle) { |
| auto nativeContext = reinterpret_cast<TunerCallbackContext*>(nativeContextHandle); |
| LOG_ALWAYS_FATAL_IF(nativeContext == nullptr, "Native context not initialized"); |
| return *nativeContext; |
| } |
| |
| /** |
| * Always lock gContextMutex when using native context. |
| */ |
| static TunerCallbackContext& getNativeContext(JNIEnv *env, jobject jTunerCb) { |
| return getNativeContext(env->GetLongField(jTunerCb, gjni.TunerCallback.nativeContext)); |
| } |
| |
| static jlong nativeInit(JNIEnv *env, jobject obj, jobject jTuner, jint jHalRev) { |
| ALOGV("nativeInit()"); |
| AutoMutex _l(gContextMutex); |
| |
| auto halRev = static_cast<HalRevision>(jHalRev); |
| |
| auto ctx = new TunerCallbackContext(); |
| ctx->mNativeCallback = new NativeCallback(env, jTuner, obj, halRev); |
| |
| static_assert(sizeof(jlong) >= sizeof(ctx), "jlong is smaller than a pointer"); |
| return reinterpret_cast<jlong>(ctx); |
| } |
| |
| static void nativeFinalize(JNIEnv *env, jobject obj, jlong nativeContext) { |
| ALOGV("nativeFinalize()"); |
| AutoMutex _l(gContextMutex); |
| |
| auto ctx = reinterpret_cast<TunerCallbackContext*>(nativeContext); |
| delete ctx; |
| } |
| |
| static void nativeDetach(JNIEnv *env, jobject obj, jlong nativeContext) { |
| ALOGV("nativeDetach()"); |
| AutoMutex _l(gContextMutex); |
| auto& ctx = getNativeContext(nativeContext); |
| |
| if (ctx.mNativeCallback == nullptr) return; |
| ctx.mNativeCallback->detach(); |
| ctx.mNativeCallback = nullptr; |
| } |
| |
| sp<ITunerCallback> getNativeCallback(JNIEnv *env, jobject jTunerCallback) { |
| AutoMutex _l(gContextMutex); |
| auto& ctx = getNativeContext(env, jTunerCallback); |
| return ctx.mNativeCallback; |
| } |
| |
| static const JNINativeMethod gTunerCallbackMethods[] = { |
| { "nativeInit", "(Lcom/android/server/radio/Tuner;I)J", (void*)nativeInit }, |
| { "nativeFinalize", "(J)V", (void*)nativeFinalize }, |
| { "nativeDetach", "(J)V", (void*)nativeDetach }, |
| }; |
| |
| } // namespace TunerCallback |
| } // namespace radio |
| } // namespace server |
| |
| void register_android_server_radio_TunerCallback(JavaVM *vm, JNIEnv *env) { |
| using namespace server::radio::TunerCallback; |
| |
| gvm = vm; |
| |
| auto tunerCbClass = FindClassOrDie(env, "com/android/server/radio/TunerCallback"); |
| gjni.TunerCallback.clazz = MakeGlobalRefOrDie(env, tunerCbClass); |
| gjni.TunerCallback.nativeContext = GetFieldIDOrDie(env, tunerCbClass, "mNativeContext", "J"); |
| gjni.TunerCallback.handleHwFailure = GetMethodIDOrDie(env, tunerCbClass, "handleHwFailure", "()V"); |
| gjni.TunerCallback.onError = GetMethodIDOrDie(env, tunerCbClass, "onError", "(I)V"); |
| gjni.TunerCallback.onConfigurationChanged = GetMethodIDOrDie(env, tunerCbClass, |
| "onConfigurationChanged", "(Landroid/hardware/radio/RadioManager$BandConfig;)V"); |
| gjni.TunerCallback.onProgramInfoChanged = GetMethodIDOrDie(env, tunerCbClass, |
| "onProgramInfoChanged", "(Landroid/hardware/radio/RadioManager$ProgramInfo;)V"); |
| |
| auto res = jniRegisterNativeMethods(env, "com/android/server/radio/TunerCallback", |
| gTunerCallbackMethods, NELEM(gTunerCallbackMethods)); |
| LOG_ALWAYS_FATAL_IF(res < 0, "Unable to register native methods."); |
| } |
| |
| } // namespace android |