le_audio/packages/apps/Bluetooth/jni/com_android_bluetooth_mcp.cpp - platform/system/bt - Git at Google

 /******************************************************************************
  *
  *  Copyright 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.
  *
  ******************************************************************************/


 #define LOG_TAG "BluetoothMCPService_jni"

 #define LOG_NDEBUG 0

 #include <base/bind.h>
 #include <base/callback.h>
 #include <map>
 #include <mutex>
 #include <shared_mutex>
 #include <vector>


 #include "android_runtime/AndroidRuntime.h"
 #include "base/logging.h"
 #include "com_android_bluetooth.h"
 #include "hardware/bt_mcp.h"
 #include "hardware/bluetooth.h"


 using bluetooth::mcp_server::McpServerCallbacks;
 using bluetooth::mcp_server::McpServerInterface;
 using bluetooth::Uuid;
 static McpServerInterface* sMcpServerInterface = nullptr;


 namespace android {
 static jmethodID method_OnConnectionStateChanged;
 static jmethodID method_MediaControlPointChangedRequest;
 static jmethodID method_TrackPositionChangedRequest;
 static jmethodID method_PlayingOrderChangedRequest;


 static std::shared_timed_mutex interface_mutex;

 static jobject mCallbacksObj = nullptr;
 static std::shared_timed_mutex callbacks_mutex;

 class McpServerCallbacksImpl : public McpServerCallbacks {
    public:
   ~McpServerCallbacksImpl() = default;

   void OnConnectionStateChange(int state, const RawAddress& bd_addr) override {
     LOG(INFO) << __func__;
     std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
     CallbackEnv sCallbackEnv(__func__);
     if (!sCallbackEnv.valid() || mCallbacksObj == nullptr) return;
     ScopedLocalRef<jbyteArray> addr(
         sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(RawAddress)));
     if (!addr.get()) {
       LOG(ERROR) << "Failed to new jbyteArray bd addr for connection state";
       return;
     }
     sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(RawAddress),
                                      (jbyte*)&bd_addr);
     sCallbackEnv->CallVoidMethod(mCallbacksObj, method_OnConnectionStateChanged,
                                  (jint)state, addr.get());
   }


   void MediaControlPointChangeReq(uint8_t state, const RawAddress& bd_addr) override {
     LOG(INFO) << __func__;

     std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
     CallbackEnv sCallbackEnv(__func__);
     if (!sCallbackEnv.valid() || mCallbacksObj == nullptr) return;

     ScopedLocalRef<jbyteArray> addr(
         sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(RawAddress)));
     if (!addr.get()) {
       LOG(ERROR) << "Failed to new jbyteArray bd addr for connection state";
       return;
     }

     sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(RawAddress),
                                      (jbyte*)&bd_addr);
     sCallbackEnv->CallVoidMethod(mCallbacksObj, method_MediaControlPointChangedRequest,
                                  (jint)state, addr.get());
   }

   void TrackPositionChangeReq(int32_t position) override {
     LOG(INFO) << __func__;

     std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
     CallbackEnv sCallbackEnv(__func__);
     if (!sCallbackEnv.valid() || mCallbacksObj == nullptr) return;

     sCallbackEnv->CallVoidMethod(mCallbacksObj, method_TrackPositionChangedRequest,
                                  (jint)position);
   }

   void PlayingOrderChangeReq(uint32_t order) override {
     LOG(INFO) << __func__;

     std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
     CallbackEnv sCallbackEnv(__func__);
     if (!sCallbackEnv.valid() || mCallbacksObj == nullptr) return;

     sCallbackEnv->CallVoidMethod(mCallbacksObj, method_PlayingOrderChangedRequest,
                                  (jint)order);
   }
 };


 static McpServerCallbacksImpl sMcpServerCallbacks;

 static void classInitNative(JNIEnv* env, jclass clazz) {
   LOG(INFO) << __func__ << ": class init native";
   method_OnConnectionStateChanged =
       env->GetMethodID(clazz, "OnConnectionStateChanged", "(I[B)V");
   LOG(INFO) << __func__ << ": class init native 1";
   method_MediaControlPointChangedRequest =
       env->GetMethodID(clazz, "MediaControlPointChangedRequest", "(I[B)V");
   LOG(INFO) << __func__ << ": class init native 2";
   method_TrackPositionChangedRequest =
       env->GetMethodID(clazz, "TrackPositionChangedRequest", "(I)V");
   method_PlayingOrderChangedRequest =
       env->GetMethodID(clazz, "PlayingOrderChangedRequest", "(I)V");

   LOG(INFO) << __func__ << ": succeeds";
 }

 //<TBD> uuid not fixed
 Uuid uuid = Uuid::FromString("00008fd1-0000-1000-8000-00805F9B34FB");

 static void initNative(JNIEnv* env, jobject object) {
   std::unique_lock<std::shared_timed_mutex> interface_lock(interface_mutex);
   std::unique_lock<std::shared_timed_mutex> callbacks_lock(callbacks_mutex);

   const bt_interface_t* btInf = getBluetoothInterface();
   if (btInf == nullptr) {
     LOG(ERROR) << "Bluetooth module is not loaded";
     return;
   }

   if (sMcpServerInterface != nullptr) {
     LOG(INFO) << "Cleaning up McpServer Interface before initializing...";
     sMcpServerInterface->Cleanup();
     sMcpServerInterface = nullptr;
   }

   if (mCallbacksObj != nullptr) {
     LOG(INFO) << "Cleaning up McpServer callback object";
     env->DeleteGlobalRef(mCallbacksObj);
     mCallbacksObj = nullptr;
   }

   if ((mCallbacksObj = env->NewGlobalRef(object)) == nullptr) {
     LOG(ERROR) << "Failed to allocate Global Ref for Mcp Controller Callbacks";
     return;
   }
   LOG(INFO) << "mcs callback initialized";
   sMcpServerInterface = (McpServerInterface* )btInf->get_profile_interface(
       BT_PROFILE_MCP_ID);
   if (sMcpServerInterface == nullptr) {
     LOG(ERROR) << "Failed to get Bluetooth Hearing Aid Interface";
     return;
   }

   sMcpServerInterface->Init(&sMcpServerCallbacks, uuid);
 }

 static void cleanupNative(JNIEnv* env, jobject object) {
   std::unique_lock<std::shared_timed_mutex> interface_lock(interface_mutex);
   std::unique_lock<std::shared_timed_mutex> callbacks_lock(callbacks_mutex);

   const bt_interface_t* btInf = getBluetoothInterface();
   if (btInf == nullptr) {
     LOG(ERROR) << "Bluetooth module is not loaded";
     return;
   }

   if (sMcpServerInterface != nullptr) {
     sMcpServerInterface->Cleanup();
     sMcpServerInterface = nullptr;
   }

   if (mCallbacksObj != nullptr) {
     env->DeleteGlobalRef(mCallbacksObj);
     mCallbacksObj = nullptr;
   }
 }


 static jboolean mediaControlPointOpcodeSupportedNative(JNIEnv* env, jobject object,
                                            jint feature) {

   LOG(INFO) << __func__;
   std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
   if (!sMcpServerInterface) return JNI_FALSE;

   sMcpServerInterface->MediaControlPointOpcodeSupported(feature);
   return JNI_TRUE;
 }

 static jboolean mediaControlPointNative(JNIEnv* env, jobject object,
                                            jint value) {

   LOG(INFO) << __func__;
   std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
   if (!sMcpServerInterface) return JNI_FALSE;

   sMcpServerInterface->MediaControlPoint(value);
   return JNI_TRUE;
 }

 static jboolean mediaStateNative(JNIEnv* env, jobject object,
                                            jint state) {

   LOG(INFO) << __func__;
   std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
   if (!sMcpServerInterface) return JNI_FALSE;

   sMcpServerInterface->MediaState(state);
   return JNI_TRUE;
 }

 static jboolean mediaPlayerNameNative(JNIEnv* env, jobject object,
                                            jstring playerName) {

   LOG(INFO) << __func__;
   std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
   if (!sMcpServerInterface) return JNI_FALSE;


   const char *nativeString = env->GetStringUTFChars(playerName, nullptr);
   if (!nativeString) {
     jniThrowIOException(env, EINVAL);
     return JNI_FALSE;
   }
   sMcpServerInterface->MediaPlayerName((uint8_t*)nativeString);
   env->ReleaseStringUTFChars(playerName, nativeString);
   return JNI_TRUE;
 }

 static jboolean trackChangedNative(JNIEnv* env, jobject object,
                                            jint status) {

   LOG(INFO) << __func__;
   std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
   if (!sMcpServerInterface) return JNI_FALSE;

   sMcpServerInterface->TrackChanged((bool)status);
   return JNI_TRUE;
 }

 static jboolean trackPositionNative(JNIEnv* env, jobject object,
                                            jint playPosition) {
   LOG(INFO) << __func__;
   std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
   if (!sMcpServerInterface) return JNI_FALSE;


   sMcpServerInterface->TrackPosition(playPosition);
   return JNI_TRUE;
 }

 static jboolean trackDurationNative(JNIEnv* env, jobject object,
                                            jint duration) {

   LOG(INFO) << __func__;
   std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
   if (!sMcpServerInterface) return JNI_FALSE;

   sMcpServerInterface->TrackDuration(duration);

   return JNI_TRUE;
 }


 static jboolean trackTitleNative(JNIEnv* env, jobject object,
                                            jstring title) {

   LOG(INFO) << __func__;
   std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
   if (!sMcpServerInterface) return JNI_FALSE;

   const char *nativeString = env->GetStringUTFChars(title, nullptr);
   if (!nativeString) {
     jniThrowIOException(env, EINVAL);
     return JNI_FALSE;
   }
   sMcpServerInterface->TrackTitle((uint8_t*)nativeString);
   env->ReleaseStringUTFChars(title, nativeString);
   return JNI_TRUE;
 }

 static jboolean setActiveDeviceNative(JNIEnv* env, jobject object,
                                          jint profile, jint set_id,
                                          jbyteArray address) {
   LOG(INFO) << __func__;
   std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
   if (!sMcpServerInterface) return JNI_FALSE;

   jbyte* addr = env->GetByteArrayElements(address, nullptr);
   RawAddress bd_addr = RawAddress::kEmpty;
   if (addr) {
     bd_addr.FromOctets(reinterpret_cast<const uint8_t*>(addr));
   }
   if (bd_addr == RawAddress::kEmpty) {
     LOG(INFO) << __func__ << " active device is null";
   }

   sMcpServerInterface->SetActiveDevice(bd_addr, set_id, profile);
   env->ReleaseByteArrayElements(address, addr, 0);
   return JNI_TRUE;
 }

 static jboolean bondStateChangeNative(JNIEnv* env, jobject object,
                                           jint state, jbyteArray address) {
   LOG(INFO) << __func__;
   std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
   if (!sMcpServerInterface) return JNI_FALSE;

   jbyte* addr = env->GetByteArrayElements(address, nullptr);
   if (!addr) {
     jniThrowIOException(env, EINVAL);
     return JNI_FALSE;
   }
   RawAddress* tmpraw = (RawAddress*)addr;

   sMcpServerInterface->BondStateChange(*tmpraw, state);
   env->ReleaseByteArrayElements(address, addr, 0);
   return JNI_TRUE;
 }

 static jboolean playingOrderSupportedNative(JNIEnv* env, jobject object,
                                            jint order) {

   LOG(INFO) << __func__;
   std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
   if (!sMcpServerInterface) return JNI_FALSE;

   sMcpServerInterface->PlayingOrderSupported(order);

   return JNI_TRUE;
 }

 static jboolean playingOrderNative(JNIEnv* env, jobject object,
                                            jint order) {

   LOG(INFO) << __func__;
   std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
   if (!sMcpServerInterface) return JNI_FALSE;

   sMcpServerInterface->PlayingOrder(order);

   return JNI_TRUE;
 }

 static jboolean contentControlIdNative(JNIEnv* env, jobject object,
                                            jint ccid) {

   LOG(INFO) << __func__;
   std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
   if (!sMcpServerInterface) return JNI_FALSE;

   sMcpServerInterface->ContentControlId(ccid);
   return JNI_TRUE;
 }

 static jboolean disconnectMcpNative(JNIEnv* env, jobject object,
                                            jbyteArray address) {

   LOG(INFO) << __func__;
   std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
   if (!sMcpServerInterface) return JNI_FALSE;

   jbyte* addr = env->GetByteArrayElements(address, nullptr);
   if (!addr) {
     jniThrowIOException(env, EINVAL);
     return JNI_FALSE;
   }
   RawAddress* tmpraw = (RawAddress*)addr;

   sMcpServerInterface->DisconnectMcp(*tmpraw);
   env->ReleaseByteArrayElements(address, addr, 0);
   return JNI_TRUE;
 }

 static JNINativeMethod sMethods[] = {
     {"classInitNative", "()V", (void*)classInitNative},
     {"initNative", "()V", (void*)initNative},
     {"cleanupNative", "()V", (void*)cleanupNative},
     {"mediaStateNative", "(I)Z", (void*)mediaStateNative},
     {"mediaPlayerNameNative", "(Ljava/lang/String;)Z", (void*)mediaPlayerNameNative},
     {"mediaControlPointOpcodeSupportedNative", "(I)Z", (void*)mediaControlPointOpcodeSupportedNative},
     {"mediaControlPointNative", "(I)Z", (void*)mediaControlPointNative},
     {"trackChangedNative", "(I)Z", (void*)trackChangedNative},
     {"trackTitleNative", "(Ljava/lang/String;)Z", (void*)trackTitleNative},
     {"trackPositionNative", "(I)Z", (void*)trackPositionNative},
     {"trackDurationNative", "(I)Z", (void*)trackDurationNative},
     {"playingOrderSupportedNative", "(I)Z", (void*)playingOrderSupportedNative},
     {"playingOrderNative", "(I)Z", (void*)playingOrderNative},
     {"setActiveDeviceNative", "(II[B)Z", (void*)setActiveDeviceNative},
     {"contentControlIdNative", "(I)Z", (void*)contentControlIdNative},
     {"disconnectMcpNative", "([B)Z", (void*)disconnectMcpNative},
     {"bondStateChangeNative", "(I[B)Z", (void*)bondStateChangeNative},
 };


 int register_com_android_bluetooth_mcp(JNIEnv* env) {
   return jniRegisterNativeMethods(
       env, "com/android/bluetooth/mcp/McpNativeInterface",
       sMethods, NELEM(sMethods));
 }
 }  // namespace android
	/******************************************************************************
	*
	* Copyright 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.
	*
	******************************************************************************/


	#define LOG_TAG "BluetoothMCPService_jni"

	#define LOG_NDEBUG 0

	#include <base/bind.h>
	#include <base/callback.h>
	#include <map>
	#include <mutex>
	#include <shared_mutex>
	#include <vector>


	#include "android_runtime/AndroidRuntime.h"
	#include "base/logging.h"
	#include "com_android_bluetooth.h"
	#include "hardware/bt_mcp.h"
	#include "hardware/bluetooth.h"



	using bluetooth::mcp_server::McpServerCallbacks;
	using bluetooth::mcp_server::McpServerInterface;
	using bluetooth::Uuid;
	static McpServerInterface* sMcpServerInterface = nullptr;


	namespace android {
	static jmethodID method_OnConnectionStateChanged;
	static jmethodID method_MediaControlPointChangedRequest;
	static jmethodID method_TrackPositionChangedRequest;
	static jmethodID method_PlayingOrderChangedRequest;


	static std::shared_timed_mutex interface_mutex;

	static jobject mCallbacksObj = nullptr;
	static std::shared_timed_mutex callbacks_mutex;

	class McpServerCallbacksImpl : public McpServerCallbacks {
	public:
	~McpServerCallbacksImpl() = default;

	void OnConnectionStateChange(int state, const RawAddress& bd_addr) override {
	LOG(INFO) << __func__;
	std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
	CallbackEnv sCallbackEnv(__func__);
	if (!sCallbackEnv.valid() \|\| mCallbacksObj == nullptr) return;
	ScopedLocalRef<jbyteArray> addr(
	sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(RawAddress)));
	if (!addr.get()) {
	LOG(ERROR) << "Failed to new jbyteArray bd addr for connection state";
	return;
	}
	sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(RawAddress),
	(jbyte*)&bd_addr);
	sCallbackEnv->CallVoidMethod(mCallbacksObj, method_OnConnectionStateChanged,
	(jint)state, addr.get());
	}


	void MediaControlPointChangeReq(uint8_t state, const RawAddress& bd_addr) override {
	LOG(INFO) << __func__;

	std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
	CallbackEnv sCallbackEnv(__func__);
	if (!sCallbackEnv.valid() \|\| mCallbacksObj == nullptr) return;

	ScopedLocalRef<jbyteArray> addr(
	sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(RawAddress)));
	if (!addr.get()) {
	LOG(ERROR) << "Failed to new jbyteArray bd addr for connection state";
	return;
	}

	sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(RawAddress),
	(jbyte*)&bd_addr);
	sCallbackEnv->CallVoidMethod(mCallbacksObj, method_MediaControlPointChangedRequest,
	(jint)state, addr.get());
	}

	void TrackPositionChangeReq(int32_t position) override {
	LOG(INFO) << __func__;

	std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
	CallbackEnv sCallbackEnv(__func__);
	if (!sCallbackEnv.valid() \|\| mCallbacksObj == nullptr) return;

	sCallbackEnv->CallVoidMethod(mCallbacksObj, method_TrackPositionChangedRequest,
	(jint)position);
	}

	void PlayingOrderChangeReq(uint32_t order) override {
	LOG(INFO) << __func__;

	std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
	CallbackEnv sCallbackEnv(__func__);
	if (!sCallbackEnv.valid() \|\| mCallbacksObj == nullptr) return;

	sCallbackEnv->CallVoidMethod(mCallbacksObj, method_PlayingOrderChangedRequest,
	(jint)order);
	}
	};


	static McpServerCallbacksImpl sMcpServerCallbacks;

	static void classInitNative(JNIEnv* env, jclass clazz) {
	LOG(INFO) << __func__ << ": class init native";
	method_OnConnectionStateChanged =
	env->GetMethodID(clazz, "OnConnectionStateChanged", "(I[B)V");
	LOG(INFO) << __func__ << ": class init native 1";
	method_MediaControlPointChangedRequest =
	env->GetMethodID(clazz, "MediaControlPointChangedRequest", "(I[B)V");
	LOG(INFO) << __func__ << ": class init native 2";
	method_TrackPositionChangedRequest =
	env->GetMethodID(clazz, "TrackPositionChangedRequest", "(I)V");
	method_PlayingOrderChangedRequest =
	env->GetMethodID(clazz, "PlayingOrderChangedRequest", "(I)V");

	LOG(INFO) << __func__ << ": succeeds";
	}

	//<TBD> uuid not fixed
	Uuid uuid = Uuid::FromString("00008fd1-0000-1000-8000-00805F9B34FB");

	static void initNative(JNIEnv* env, jobject object) {
	std::unique_lock<std::shared_timed_mutex> interface_lock(interface_mutex);
	std::unique_lock<std::shared_timed_mutex> callbacks_lock(callbacks_mutex);

	const bt_interface_t* btInf = getBluetoothInterface();
	if (btInf == nullptr) {
	LOG(ERROR) << "Bluetooth module is not loaded";
	return;
	}

	if (sMcpServerInterface != nullptr) {
	LOG(INFO) << "Cleaning up McpServer Interface before initializing...";
	sMcpServerInterface->Cleanup();
	sMcpServerInterface = nullptr;
	}

	if (mCallbacksObj != nullptr) {
	LOG(INFO) << "Cleaning up McpServer callback object";
	env->DeleteGlobalRef(mCallbacksObj);
	mCallbacksObj = nullptr;
	}

	if ((mCallbacksObj = env->NewGlobalRef(object)) == nullptr) {
	LOG(ERROR) << "Failed to allocate Global Ref for Mcp Controller Callbacks";
	return;
	}
	LOG(INFO) << "mcs callback initialized";
	sMcpServerInterface = (McpServerInterface* )btInf->get_profile_interface(
	BT_PROFILE_MCP_ID);
	if (sMcpServerInterface == nullptr) {
	LOG(ERROR) << "Failed to get Bluetooth Hearing Aid Interface";
	return;
	}

	sMcpServerInterface->Init(&sMcpServerCallbacks, uuid);
	}

	static void cleanupNative(JNIEnv* env, jobject object) {
	std::unique_lock<std::shared_timed_mutex> interface_lock(interface_mutex);
	std::unique_lock<std::shared_timed_mutex> callbacks_lock(callbacks_mutex);

	const bt_interface_t* btInf = getBluetoothInterface();
	if (btInf == nullptr) {
	LOG(ERROR) << "Bluetooth module is not loaded";
	return;
	}

	if (sMcpServerInterface != nullptr) {
	sMcpServerInterface->Cleanup();
	sMcpServerInterface = nullptr;
	}

	if (mCallbacksObj != nullptr) {
	env->DeleteGlobalRef(mCallbacksObj);
	mCallbacksObj = nullptr;
	}
	}



	static jboolean mediaControlPointOpcodeSupportedNative(JNIEnv* env, jobject object,
	jint feature) {

	LOG(INFO) << __func__;
	std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
	if (!sMcpServerInterface) return JNI_FALSE;

	sMcpServerInterface->MediaControlPointOpcodeSupported(feature);
	return JNI_TRUE;
	}

	static jboolean mediaControlPointNative(JNIEnv* env, jobject object,
	jint value) {

	LOG(INFO) << __func__;
	std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
	if (!sMcpServerInterface) return JNI_FALSE;

	sMcpServerInterface->MediaControlPoint(value);
	return JNI_TRUE;
	}

	static jboolean mediaStateNative(JNIEnv* env, jobject object,
	jint state) {

	LOG(INFO) << __func__;
	std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
	if (!sMcpServerInterface) return JNI_FALSE;

	sMcpServerInterface->MediaState(state);
	return JNI_TRUE;
	}

	static jboolean mediaPlayerNameNative(JNIEnv* env, jobject object,
	jstring playerName) {

	LOG(INFO) << __func__;
	std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
	if (!sMcpServerInterface) return JNI_FALSE;


	const char *nativeString = env->GetStringUTFChars(playerName, nullptr);
	if (!nativeString) {
	jniThrowIOException(env, EINVAL);
	return JNI_FALSE;
	}
	sMcpServerInterface->MediaPlayerName((uint8_t*)nativeString);
	env->ReleaseStringUTFChars(playerName, nativeString);
	return JNI_TRUE;
	}

	static jboolean trackChangedNative(JNIEnv* env, jobject object,
	jint status) {

	LOG(INFO) << __func__;
	std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
	if (!sMcpServerInterface) return JNI_FALSE;

	sMcpServerInterface->TrackChanged((bool)status);
	return JNI_TRUE;
	}

	static jboolean trackPositionNative(JNIEnv* env, jobject object,
	jint playPosition) {
	LOG(INFO) << __func__;
	std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
	if (!sMcpServerInterface) return JNI_FALSE;


	sMcpServerInterface->TrackPosition(playPosition);
	return JNI_TRUE;
	}

	static jboolean trackDurationNative(JNIEnv* env, jobject object,
	jint duration) {

	LOG(INFO) << __func__;
	std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
	if (!sMcpServerInterface) return JNI_FALSE;

	sMcpServerInterface->TrackDuration(duration);

	return JNI_TRUE;
	}



	static jboolean trackTitleNative(JNIEnv* env, jobject object,
	jstring title) {

	LOG(INFO) << __func__;
	std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
	if (!sMcpServerInterface) return JNI_FALSE;

	const char *nativeString = env->GetStringUTFChars(title, nullptr);
	if (!nativeString) {
	jniThrowIOException(env, EINVAL);
	return JNI_FALSE;
	}
	sMcpServerInterface->TrackTitle((uint8_t*)nativeString);
	env->ReleaseStringUTFChars(title, nativeString);
	return JNI_TRUE;
	}

	static jboolean setActiveDeviceNative(JNIEnv* env, jobject object,
	jint profile, jint set_id,
	jbyteArray address) {
	LOG(INFO) << __func__;
	std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
	if (!sMcpServerInterface) return JNI_FALSE;

	jbyte* addr = env->GetByteArrayElements(address, nullptr);
	RawAddress bd_addr = RawAddress::kEmpty;
	if (addr) {
	bd_addr.FromOctets(reinterpret_cast<const uint8_t*>(addr));
	}
	if (bd_addr == RawAddress::kEmpty) {
	LOG(INFO) << __func__ << " active device is null";
	}

	sMcpServerInterface->SetActiveDevice(bd_addr, set_id, profile);
	env->ReleaseByteArrayElements(address, addr, 0);
	return JNI_TRUE;
	}

	static jboolean bondStateChangeNative(JNIEnv* env, jobject object,
	jint state, jbyteArray address) {
	LOG(INFO) << __func__;
	std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
	if (!sMcpServerInterface) return JNI_FALSE;

	jbyte* addr = env->GetByteArrayElements(address, nullptr);
	if (!addr) {
	jniThrowIOException(env, EINVAL);
	return JNI_FALSE;
	}
	RawAddress* tmpraw = (RawAddress*)addr;

	sMcpServerInterface->BondStateChange(*tmpraw, state);
	env->ReleaseByteArrayElements(address, addr, 0);
	return JNI_TRUE;
	}

	static jboolean playingOrderSupportedNative(JNIEnv* env, jobject object,
	jint order) {

	LOG(INFO) << __func__;
	std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
	if (!sMcpServerInterface) return JNI_FALSE;

	sMcpServerInterface->PlayingOrderSupported(order);

	return JNI_TRUE;
	}

	static jboolean playingOrderNative(JNIEnv* env, jobject object,
	jint order) {

	LOG(INFO) << __func__;
	std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
	if (!sMcpServerInterface) return JNI_FALSE;

	sMcpServerInterface->PlayingOrder(order);

	return JNI_TRUE;
	}

	static jboolean contentControlIdNative(JNIEnv* env, jobject object,
	jint ccid) {

	LOG(INFO) << __func__;
	std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
	if (!sMcpServerInterface) return JNI_FALSE;

	sMcpServerInterface->ContentControlId(ccid);
	return JNI_TRUE;
	}

	static jboolean disconnectMcpNative(JNIEnv* env, jobject object,
	jbyteArray address) {

	LOG(INFO) << __func__;
	std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
	if (!sMcpServerInterface) return JNI_FALSE;

	jbyte* addr = env->GetByteArrayElements(address, nullptr);
	if (!addr) {
	jniThrowIOException(env, EINVAL);
	return JNI_FALSE;
	}
	RawAddress* tmpraw = (RawAddress*)addr;

	sMcpServerInterface->DisconnectMcp(*tmpraw);
	env->ReleaseByteArrayElements(address, addr, 0);
	return JNI_TRUE;
	}

	static JNINativeMethod sMethods[] = {
	{"classInitNative", "()V", (void*)classInitNative},
	{"initNative", "()V", (void*)initNative},
	{"cleanupNative", "()V", (void*)cleanupNative},
	{"mediaStateNative", "(I)Z", (void*)mediaStateNative},
	{"mediaPlayerNameNative", "(Ljava/lang/String;)Z", (void*)mediaPlayerNameNative},
	{"mediaControlPointOpcodeSupportedNative", "(I)Z", (void*)mediaControlPointOpcodeSupportedNative},
	{"mediaControlPointNative", "(I)Z", (void*)mediaControlPointNative},
	{"trackChangedNative", "(I)Z", (void*)trackChangedNative},
	{"trackTitleNative", "(Ljava/lang/String;)Z", (void*)trackTitleNative},
	{"trackPositionNative", "(I)Z", (void*)trackPositionNative},
	{"trackDurationNative", "(I)Z", (void*)trackDurationNative},
	{"playingOrderSupportedNative", "(I)Z", (void*)playingOrderSupportedNative},
	{"playingOrderNative", "(I)Z", (void*)playingOrderNative},
	{"setActiveDeviceNative", "(II[B)Z", (void*)setActiveDeviceNative},
	{"contentControlIdNative", "(I)Z", (void*)contentControlIdNative},
	{"disconnectMcpNative", "([B)Z", (void*)disconnectMcpNative},
	{"bondStateChangeNative", "(I[B)Z", (void*)bondStateChangeNative},
	};



	int register_com_android_bluetooth_mcp(JNIEnv* env) {
	return jniRegisterNativeMethods(
	env, "com/android/bluetooth/mcp/McpNativeInterface",
	sMethods, NELEM(sMethods));
	}
	} // namespace android