| /* |
| * Copyright (C) 2012 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 "BluetoothA2dpServiceJni" |
| |
| #define LOG_NDEBUG 0 |
| |
| #include "android_runtime/AndroidRuntime.h" |
| #include "com_android_bluetooth.h" |
| #include "hardware/bt_av.h" |
| #include "utils/Log.h" |
| |
| #include <string.h> |
| |
| namespace android { |
| static jmethodID method_onConnectionStateChanged; |
| static jmethodID method_onAudioStateChanged; |
| static jmethodID method_onCodecConfigChanged; |
| |
| static struct { |
| jclass clazz; |
| jmethodID constructor; |
| jmethodID getCodecType; |
| jmethodID getCodecPriority; |
| jmethodID getSampleRate; |
| jmethodID getBitsPerSample; |
| jmethodID getChannelMode; |
| jmethodID getCodecSpecific1; |
| jmethodID getCodecSpecific2; |
| jmethodID getCodecSpecific3; |
| jmethodID getCodecSpecific4; |
| } android_bluetooth_BluetoothCodecConfig; |
| |
| static const btav_source_interface_t* sBluetoothA2dpInterface = NULL; |
| static jobject mCallbacksObj = NULL; |
| |
| static void bta2dp_connection_state_callback(btav_connection_state_t state, |
| bt_bdaddr_t* bd_addr) { |
| ALOGI("%s", __func__); |
| CallbackEnv sCallbackEnv(__func__); |
| if (!sCallbackEnv.valid()) return; |
| |
| ScopedLocalRef<jbyteArray> addr( |
| sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(bt_bdaddr_t))); |
| if (!addr.get()) { |
| ALOGE("Fail to new jbyteArray bd addr for connection state"); |
| return; |
| } |
| |
| sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(bt_bdaddr_t), |
| (jbyte*)bd_addr); |
| sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onConnectionStateChanged, |
| (jint)state, addr.get()); |
| } |
| |
| static void bta2dp_audio_state_callback(btav_audio_state_t state, |
| bt_bdaddr_t* bd_addr) { |
| ALOGI("%s", __func__); |
| CallbackEnv sCallbackEnv(__func__); |
| if (!sCallbackEnv.valid()) return; |
| |
| ScopedLocalRef<jbyteArray> addr( |
| sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(bt_bdaddr_t))); |
| if (!addr.get()) { |
| ALOGE("Fail to new jbyteArray bd addr for connection state"); |
| return; |
| } |
| |
| sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(bt_bdaddr_t), |
| (jbyte*)bd_addr); |
| sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onAudioStateChanged, |
| (jint)state, addr.get()); |
| } |
| |
| static void bta2dp_audio_config_callback( |
| btav_a2dp_codec_config_t codec_config, |
| std::vector<btav_a2dp_codec_config_t> codecs_local_capabilities, |
| std::vector<btav_a2dp_codec_config_t> codecs_selectable_capabilities) { |
| ALOGI("%s", __func__); |
| CallbackEnv sCallbackEnv(__func__); |
| if (!sCallbackEnv.valid()) return; |
| |
| jobject codecConfigObj = sCallbackEnv->NewObject( |
| android_bluetooth_BluetoothCodecConfig.clazz, |
| android_bluetooth_BluetoothCodecConfig.constructor, |
| (jint)codec_config.codec_type, (jint)codec_config.codec_priority, |
| (jint)codec_config.sample_rate, (jint)codec_config.bits_per_sample, |
| (jint)codec_config.channel_mode, (jlong)codec_config.codec_specific_1, |
| (jlong)codec_config.codec_specific_2, |
| (jlong)codec_config.codec_specific_3, |
| (jlong)codec_config.codec_specific_4); |
| |
| jsize i = 0; |
| jobjectArray local_capabilities_array = sCallbackEnv->NewObjectArray( |
| (jsize)codecs_local_capabilities.size(), |
| android_bluetooth_BluetoothCodecConfig.clazz, NULL); |
| for (auto const& cap : codecs_local_capabilities) { |
| jobject capObj = sCallbackEnv->NewObject( |
| android_bluetooth_BluetoothCodecConfig.clazz, |
| android_bluetooth_BluetoothCodecConfig.constructor, |
| (jint)cap.codec_type, (jint)cap.codec_priority, (jint)cap.sample_rate, |
| (jint)cap.bits_per_sample, (jint)cap.channel_mode, |
| (jlong)cap.codec_specific_1, (jlong)cap.codec_specific_2, |
| (jlong)cap.codec_specific_3, (jlong)cap.codec_specific_4); |
| sCallbackEnv->SetObjectArrayElement(local_capabilities_array, i++, capObj); |
| sCallbackEnv->DeleteLocalRef(capObj); |
| } |
| |
| i = 0; |
| jobjectArray selectable_capabilities_array = sCallbackEnv->NewObjectArray( |
| (jsize)codecs_selectable_capabilities.size(), |
| android_bluetooth_BluetoothCodecConfig.clazz, NULL); |
| for (auto const& cap : codecs_selectable_capabilities) { |
| jobject capObj = sCallbackEnv->NewObject( |
| android_bluetooth_BluetoothCodecConfig.clazz, |
| android_bluetooth_BluetoothCodecConfig.constructor, |
| (jint)cap.codec_type, (jint)cap.codec_priority, (jint)cap.sample_rate, |
| (jint)cap.bits_per_sample, (jint)cap.channel_mode, |
| (jlong)cap.codec_specific_1, (jlong)cap.codec_specific_2, |
| (jlong)cap.codec_specific_3, (jlong)cap.codec_specific_4); |
| sCallbackEnv->SetObjectArrayElement(selectable_capabilities_array, i++, |
| capObj); |
| sCallbackEnv->DeleteLocalRef(capObj); |
| } |
| |
| sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onCodecConfigChanged, |
| codecConfigObj, local_capabilities_array, |
| selectable_capabilities_array); |
| } |
| |
| static btav_source_callbacks_t sBluetoothA2dpCallbacks = { |
| sizeof(sBluetoothA2dpCallbacks), bta2dp_connection_state_callback, |
| bta2dp_audio_state_callback, bta2dp_audio_config_callback, |
| }; |
| |
| static void classInitNative(JNIEnv* env, jclass clazz) { |
| jclass jniBluetoothCodecConfigClass = |
| env->FindClass("android/bluetooth/BluetoothCodecConfig"); |
| android_bluetooth_BluetoothCodecConfig.constructor = |
| env->GetMethodID(jniBluetoothCodecConfigClass, "<init>", "(IIIIIJJJJ)V"); |
| android_bluetooth_BluetoothCodecConfig.getCodecType = |
| env->GetMethodID(jniBluetoothCodecConfigClass, "getCodecType", "()I"); |
| android_bluetooth_BluetoothCodecConfig.getCodecPriority = |
| env->GetMethodID(jniBluetoothCodecConfigClass, "getCodecPriority", "()I"); |
| android_bluetooth_BluetoothCodecConfig.getSampleRate = |
| env->GetMethodID(jniBluetoothCodecConfigClass, "getSampleRate", "()I"); |
| android_bluetooth_BluetoothCodecConfig.getBitsPerSample = |
| env->GetMethodID(jniBluetoothCodecConfigClass, "getBitsPerSample", "()I"); |
| android_bluetooth_BluetoothCodecConfig.getChannelMode = |
| env->GetMethodID(jniBluetoothCodecConfigClass, "getChannelMode", "()I"); |
| android_bluetooth_BluetoothCodecConfig.getCodecSpecific1 = env->GetMethodID( |
| jniBluetoothCodecConfigClass, "getCodecSpecific1", "()J"); |
| android_bluetooth_BluetoothCodecConfig.getCodecSpecific2 = env->GetMethodID( |
| jniBluetoothCodecConfigClass, "getCodecSpecific2", "()J"); |
| android_bluetooth_BluetoothCodecConfig.getCodecSpecific3 = env->GetMethodID( |
| jniBluetoothCodecConfigClass, "getCodecSpecific3", "()J"); |
| android_bluetooth_BluetoothCodecConfig.getCodecSpecific4 = env->GetMethodID( |
| jniBluetoothCodecConfigClass, "getCodecSpecific4", "()J"); |
| |
| method_onConnectionStateChanged = |
| env->GetMethodID(clazz, "onConnectionStateChanged", "(I[B)V"); |
| |
| method_onAudioStateChanged = |
| env->GetMethodID(clazz, "onAudioStateChanged", "(I[B)V"); |
| |
| method_onCodecConfigChanged = env->GetMethodID( |
| clazz, "onCodecConfigChanged", |
| "(Landroid/bluetooth/BluetoothCodecConfig;[Landroid/bluetooth/" |
| "BluetoothCodecConfig;[Landroid/bluetooth/BluetoothCodecConfig;)V"); |
| |
| ALOGI("%s: succeeds", __func__); |
| } |
| |
| static std::vector<btav_a2dp_codec_config_t> prepareCodecPreferences( |
| JNIEnv* env, jobject object, jobjectArray codecConfigArray) { |
| std::vector<btav_a2dp_codec_config_t> codec_preferences; |
| |
| int numConfigs = env->GetArrayLength(codecConfigArray); |
| for (int i = 0; i < numConfigs; i++) { |
| jobject jcodecConfig = env->GetObjectArrayElement(codecConfigArray, i); |
| if (jcodecConfig == nullptr) continue; |
| if (!env->IsInstanceOf(jcodecConfig, |
| android_bluetooth_BluetoothCodecConfig.clazz)) { |
| ALOGE("Invalid BluetoothCodecConfig instance"); |
| continue; |
| } |
| jint codecType = env->CallIntMethod( |
| jcodecConfig, android_bluetooth_BluetoothCodecConfig.getCodecType); |
| jint codecPriority = env->CallIntMethod( |
| jcodecConfig, android_bluetooth_BluetoothCodecConfig.getCodecPriority); |
| jint sampleRate = env->CallIntMethod( |
| jcodecConfig, android_bluetooth_BluetoothCodecConfig.getSampleRate); |
| jint bitsPerSample = env->CallIntMethod( |
| jcodecConfig, android_bluetooth_BluetoothCodecConfig.getBitsPerSample); |
| jint channelMode = env->CallIntMethod( |
| jcodecConfig, android_bluetooth_BluetoothCodecConfig.getChannelMode); |
| jlong codecSpecific1 = env->CallLongMethod( |
| jcodecConfig, android_bluetooth_BluetoothCodecConfig.getCodecSpecific1); |
| jlong codecSpecific2 = env->CallLongMethod( |
| jcodecConfig, android_bluetooth_BluetoothCodecConfig.getCodecSpecific2); |
| jlong codecSpecific3 = env->CallLongMethod( |
| jcodecConfig, android_bluetooth_BluetoothCodecConfig.getCodecSpecific3); |
| jlong codecSpecific4 = env->CallLongMethod( |
| jcodecConfig, android_bluetooth_BluetoothCodecConfig.getCodecSpecific4); |
| |
| btav_a2dp_codec_config_t codec_config = { |
| .codec_type = static_cast<btav_a2dp_codec_index_t>(codecType), |
| .codec_priority = |
| static_cast<btav_a2dp_codec_priority_t>(codecPriority), |
| .sample_rate = static_cast<btav_a2dp_codec_sample_rate_t>(sampleRate), |
| .bits_per_sample = |
| static_cast<btav_a2dp_codec_bits_per_sample_t>(bitsPerSample), |
| .channel_mode = |
| static_cast<btav_a2dp_codec_channel_mode_t>(channelMode), |
| .codec_specific_1 = codecSpecific1, |
| .codec_specific_2 = codecSpecific2, |
| .codec_specific_3 = codecSpecific3, |
| .codec_specific_4 = codecSpecific4}; |
| |
| codec_preferences.push_back(codec_config); |
| } |
| return codec_preferences; |
| } |
| |
| static void initNative(JNIEnv* env, jobject object, |
| jobjectArray codecConfigArray) { |
| const bt_interface_t* btInf = getBluetoothInterface(); |
| if (btInf == NULL) { |
| ALOGE("Bluetooth module is not loaded"); |
| return; |
| } |
| |
| if (sBluetoothA2dpInterface != NULL) { |
| ALOGW("Cleaning up A2DP Interface before initializing..."); |
| sBluetoothA2dpInterface->cleanup(); |
| sBluetoothA2dpInterface = NULL; |
| } |
| |
| if (mCallbacksObj != NULL) { |
| ALOGW("Cleaning up A2DP callback object"); |
| env->DeleteGlobalRef(mCallbacksObj); |
| mCallbacksObj = NULL; |
| } |
| |
| if ((mCallbacksObj = env->NewGlobalRef(object)) == NULL) { |
| ALOGE("Failed to allocate Global Ref for A2DP Callbacks"); |
| return; |
| } |
| |
| android_bluetooth_BluetoothCodecConfig.clazz = (jclass)env->NewGlobalRef( |
| env->FindClass("android/bluetooth/BluetoothCodecConfig")); |
| if (android_bluetooth_BluetoothCodecConfig.clazz == nullptr) { |
| ALOGE("Failed to allocate Global Ref for BluetoothCodecConfig class"); |
| return; |
| } |
| |
| sBluetoothA2dpInterface = |
| (btav_source_interface_t*)btInf->get_profile_interface( |
| BT_PROFILE_ADVANCED_AUDIO_ID); |
| if (sBluetoothA2dpInterface == NULL) { |
| ALOGE("Failed to get Bluetooth A2DP Interface"); |
| return; |
| } |
| |
| std::vector<btav_a2dp_codec_config_t> codec_priorities = |
| prepareCodecPreferences(env, object, codecConfigArray); |
| |
| bt_status_t status = |
| sBluetoothA2dpInterface->init(&sBluetoothA2dpCallbacks, codec_priorities); |
| if (status != BT_STATUS_SUCCESS) { |
| ALOGE("Failed to initialize Bluetooth A2DP, status: %d", status); |
| sBluetoothA2dpInterface = NULL; |
| return; |
| } |
| } |
| |
| static void cleanupNative(JNIEnv* env, jobject object) { |
| const bt_interface_t* btInf = getBluetoothInterface(); |
| if (btInf == NULL) { |
| ALOGE("Bluetooth module is not loaded"); |
| return; |
| } |
| |
| if (sBluetoothA2dpInterface != NULL) { |
| sBluetoothA2dpInterface->cleanup(); |
| sBluetoothA2dpInterface = NULL; |
| } |
| |
| env->DeleteGlobalRef(android_bluetooth_BluetoothCodecConfig.clazz); |
| android_bluetooth_BluetoothCodecConfig.clazz = nullptr; |
| |
| if (mCallbacksObj != NULL) { |
| env->DeleteGlobalRef(mCallbacksObj); |
| mCallbacksObj = NULL; |
| } |
| } |
| |
| static jboolean connectA2dpNative(JNIEnv* env, jobject object, |
| jbyteArray address) { |
| ALOGI("%s: sBluetoothA2dpInterface: %p", __func__, sBluetoothA2dpInterface); |
| if (!sBluetoothA2dpInterface) return JNI_FALSE; |
| |
| jbyte* addr = env->GetByteArrayElements(address, NULL); |
| if (!addr) { |
| jniThrowIOException(env, EINVAL); |
| return JNI_FALSE; |
| } |
| |
| bt_status_t status = sBluetoothA2dpInterface->connect((bt_bdaddr_t*)addr); |
| if (status != BT_STATUS_SUCCESS) { |
| ALOGE("Failed HF connection, status: %d", status); |
| } |
| env->ReleaseByteArrayElements(address, addr, 0); |
| return (status == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static jboolean disconnectA2dpNative(JNIEnv* env, jobject object, |
| jbyteArray address) { |
| if (!sBluetoothA2dpInterface) return JNI_FALSE; |
| |
| jbyte* addr = env->GetByteArrayElements(address, NULL); |
| if (!addr) { |
| jniThrowIOException(env, EINVAL); |
| return JNI_FALSE; |
| } |
| |
| bt_status_t status = sBluetoothA2dpInterface->disconnect((bt_bdaddr_t*)addr); |
| if (status != BT_STATUS_SUCCESS) { |
| ALOGE("Failed HF disconnection, status: %d", status); |
| } |
| env->ReleaseByteArrayElements(address, addr, 0); |
| return (status == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static jboolean setCodecConfigPreferenceNative(JNIEnv* env, jobject object, |
| jobjectArray codecConfigArray) { |
| if (!sBluetoothA2dpInterface) return JNI_FALSE; |
| |
| std::vector<btav_a2dp_codec_config_t> codec_preferences = |
| prepareCodecPreferences(env, object, codecConfigArray); |
| |
| bt_status_t status = sBluetoothA2dpInterface->config_codec(codec_preferences); |
| if (status != BT_STATUS_SUCCESS) { |
| ALOGE("Failed codec configuration, status: %d", status); |
| } |
| return (status == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static JNINativeMethod sMethods[] = { |
| {"classInitNative", "()V", (void*)classInitNative}, |
| {"initNative", "([Landroid/bluetooth/BluetoothCodecConfig;)V", |
| (void*)initNative}, |
| {"cleanupNative", "()V", (void*)cleanupNative}, |
| {"connectA2dpNative", "([B)Z", (void*)connectA2dpNative}, |
| {"disconnectA2dpNative", "([B)Z", (void*)disconnectA2dpNative}, |
| {"setCodecConfigPreferenceNative", |
| "([Landroid/bluetooth/BluetoothCodecConfig;)Z", |
| (void*)setCodecConfigPreferenceNative}, |
| }; |
| |
| int register_com_android_bluetooth_a2dp(JNIEnv* env) { |
| return jniRegisterNativeMethods(env, |
| "com/android/bluetooth/a2dp/A2dpStateMachine", |
| sMethods, NELEM(sMethods)); |
| } |
| } |