jni/com_android_bluetooth_hid.cpp - platform/packages/apps/Bluetooth - Git at Google

 /*
  * 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 "BluetoothHidServiceJni"

 #define LOG_NDEBUG 0

 #define CHECK_CALLBACK_ENV                                                      \
    if (!checkCallbackThread()) {                                                \
        ALOGE("Callback: '%s' is not called on the correct thread", __FUNCTION__);\
        return;                                                                  \
    }

 #include "com_android_bluetooth.h"
 #include "hardware/bt_hh.h"
 #include "utils/Log.h"
 #include "android_runtime/AndroidRuntime.h"

 #include <string.h>

 namespace android {

 static jmethodID method_onConnectStateChanged;
 static jmethodID method_onGetProtocolMode;
 static jmethodID method_onGetReport;
 static jmethodID method_onVirtualUnplug;

 static const bthh_interface_t *sBluetoothHidInterface = NULL;
 static jobject mCallbacksObj = NULL;
 static JNIEnv *sCallbackEnv = NULL;

 static bool checkCallbackThread() {

     // Always fetch the latest callbackEnv from AdapterService.
     // Caching this could cause this sCallbackEnv to go out-of-sync
     // with the AdapterService's ENV if an ASSOCIATE/DISASSOCIATE event
     // is received

     sCallbackEnv = getCallbackEnv();

     JNIEnv* env = AndroidRuntime::getJNIEnv();
     if (sCallbackEnv != env || sCallbackEnv == NULL) return false;
     return true;
 }

 static void connection_state_callback(bt_bdaddr_t *bd_addr, bthh_connection_state_t state) {
     jbyteArray addr;

     CHECK_CALLBACK_ENV
     addr = sCallbackEnv->NewByteArray(sizeof(bt_bdaddr_t));
     if (!addr) {
         ALOGE("Fail to new jbyteArray bd addr for HID channel state");
         checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
         return;
     }
     sCallbackEnv->SetByteArrayRegion(addr, 0, sizeof(bt_bdaddr_t), (jbyte *) bd_addr);

     sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onConnectStateChanged, addr, (jint) state);
     checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
     sCallbackEnv->DeleteLocalRef(addr);
 }

 static void get_protocol_mode_callback(bt_bdaddr_t *bd_addr, bthh_status_t hh_status,bthh_protocol_mode_t mode) {
     jbyteArray addr;

     CHECK_CALLBACK_ENV
     if (hh_status != BTHH_OK) {
         ALOGE("BTHH Status is not OK!");
         checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
         return;
     }

     addr = sCallbackEnv->NewByteArray(sizeof(bt_bdaddr_t));
     if (!addr) {
         ALOGE("Fail to new jbyteArray bd addr for get protocal mode callback");
         checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
         return;
     }
     sCallbackEnv->SetByteArrayRegion(addr, 0, sizeof(bt_bdaddr_t), (jbyte *) bd_addr);

     sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onGetProtocolMode, addr, (jint) mode);
     checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
     sCallbackEnv->DeleteLocalRef(addr);
 }

 static void virtual_unplug_callback(bt_bdaddr_t *bd_addr, bthh_status_t hh_status) {
     ALOGD("call to virtual_unplug_callback");
     jbyteArray addr;

     CHECK_CALLBACK_ENV
     addr = sCallbackEnv->NewByteArray(sizeof(bt_bdaddr_t));
     if (!addr) {
         ALOGE("Fail to new jbyteArray bd addr for HID channel state");
         checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
         return;
     }
     sCallbackEnv->SetByteArrayRegion(addr, 0, sizeof(bt_bdaddr_t), (jbyte *) bd_addr);

     sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onVirtualUnplug, addr, (jint) hh_status);
     checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
     sCallbackEnv->DeleteLocalRef(addr);

     /*jbyteArray addr;
     jint status = hh_status;
     CHECK_CALLBACK_ENV
     addr = sCallbackEnv->NewByteArray(sizeof(bt_bdaddr_t));
     if (!addr) {
         ALOGE("Fail to new jbyteArray bd addr for HID report");
         checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
         return;
     }
     sCallbackEnv->SetByteArrayRegion(addr, 0, sizeof(bt_bdaddr_t), (jbyte *) bd_addr);

     sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onVirtualUnplug, addr, status);
     checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
     sCallbackEnv->DeleteLocalRef(addr);*/
 }


 static bthh_callbacks_t sBluetoothHidCallbacks = {
     sizeof(sBluetoothHidCallbacks),
     connection_state_callback,
     NULL,
     get_protocol_mode_callback,
     NULL,
     NULL,
     virtual_unplug_callback
 };

 // Define native functions

 static void classInitNative(JNIEnv* env, jclass clazz) {
     int err;
 //    const bt_interface_t* btInf;
 //    bt_status_t status;

     method_onConnectStateChanged = env->GetMethodID(clazz, "onConnectStateChanged", "([BI)V");
     method_onGetProtocolMode = env->GetMethodID(clazz, "onGetProtocolMode", "([BI)V");
     method_onVirtualUnplug = env->GetMethodID(clazz, "onVirtualUnplug", "([BI)V");

 /*
     if ( (btInf = getBluetoothInterface()) == NULL) {
         ALOGE("Bluetooth module is not loaded");
         return;
     }

     if ( (sBluetoothHidInterface = (bthh_interface_t *)
           btInf->get_profile_interface(BT_PROFILE_HIDHOST_ID)) == NULL) {
         ALOGE("Failed to get Bluetooth Handsfree Interface");
         return;
     }

     // TODO(BT) do this only once or
     //          Do we need to do this every time the BT reenables?
     if ( (status = sBluetoothHidInterface->init(&sBluetoothHidCallbacks)) != BT_STATUS_SUCCESS) {
         ALOGE("Failed to initialize Bluetooth HID, status: %d", status);
         sBluetoothHidInterface = NULL;
         return;
     }

 */
     ALOGI("%s: succeeds", __FUNCTION__);
 }

 static void initializeNative(JNIEnv *env, jobject object) {
     const bt_interface_t* btInf;
     bt_status_t status;

     if ( (btInf = getBluetoothInterface()) == NULL) {
         ALOGE("Bluetooth module is not loaded");
         return;
     }

     if (sBluetoothHidInterface !=NULL) {
         ALOGW("Cleaning up Bluetooth HID Interface before initializing...");
         sBluetoothHidInterface->cleanup();
         sBluetoothHidInterface = NULL;
     }

     if (mCallbacksObj != NULL) {
         ALOGW("Cleaning up Bluetooth GID callback object");
         env->DeleteGlobalRef(mCallbacksObj);
         mCallbacksObj = NULL;
     }


     if ( (sBluetoothHidInterface = (bthh_interface_t *)
           btInf->get_profile_interface(BT_PROFILE_HIDHOST_ID)) == NULL) {
         ALOGE("Failed to get Bluetooth HID Interface");
         return;
     }

     if ( (status = sBluetoothHidInterface->init(&sBluetoothHidCallbacks)) != BT_STATUS_SUCCESS) {
         ALOGE("Failed to initialize Bluetooth HID, status: %d", status);
         sBluetoothHidInterface = NULL;
         return;
     }


     mCallbacksObj = env->NewGlobalRef(object);
 }

 static void cleanupNative(JNIEnv *env, jobject object) {
     const bt_interface_t* btInf;
     bt_status_t status;

     if ( (btInf = getBluetoothInterface()) == NULL) {
         ALOGE("Bluetooth module is not loaded");
         return;
     }

     if (sBluetoothHidInterface !=NULL) {
         ALOGW("Cleaning up Bluetooth HID Interface...");
         sBluetoothHidInterface->cleanup();
         sBluetoothHidInterface = NULL;
     }

     if (mCallbacksObj != NULL) {
         ALOGW("Cleaning up Bluetooth GID callback object");
         env->DeleteGlobalRef(mCallbacksObj);
         mCallbacksObj = NULL;
     }

     env->DeleteGlobalRef(mCallbacksObj);
 }

 static jboolean connectHidNative(JNIEnv *env, jobject object, jbyteArray address) {
     bt_status_t status;
     jbyte *addr;
     jboolean ret = JNI_TRUE;
     if (!sBluetoothHidInterface) return JNI_FALSE;

     addr = env->GetByteArrayElements(address, NULL);
     if (!addr) {
         ALOGE("Bluetooth device address null");
         return JNI_FALSE;
     }

     if ((status = sBluetoothHidInterface->connect((bt_bdaddr_t *) addr)) !=
          BT_STATUS_SUCCESS) {
         ALOGE("Failed HID channel connection, status: %d", status);
         ret = JNI_FALSE;
     }
     env->ReleaseByteArrayElements(address, addr, 0);

     return ret;
 }

 static jboolean disconnectHidNative(JNIEnv *env, jobject object, jbyteArray address) {
     bt_status_t status;
     jbyte *addr;
     jboolean ret = JNI_TRUE;
     if (!sBluetoothHidInterface) return JNI_FALSE;

     addr = env->GetByteArrayElements(address, NULL);
     if (!addr) {
         ALOGE("Bluetooth device address null");
         return JNI_FALSE;
     }

     if ( (status = sBluetoothHidInterface->disconnect((bt_bdaddr_t *) addr)) !=
          BT_STATUS_SUCCESS) {
         ALOGE("Failed disconnect hid channel, status: %d", status);
         ret = JNI_FALSE;
     }
     env->ReleaseByteArrayElements(address, addr, 0);

     return ret;
 }

 static jboolean getProtocolModeNative(JNIEnv *env, jobject object, jbyteArray address) {
     bt_status_t status;
     jbyte *addr;
     jboolean ret = JNI_TRUE;
     bthh_protocol_mode_t protocolMode;
     if (!sBluetoothHidInterface) return JNI_FALSE;

     addr = env->GetByteArrayElements(address, NULL);
     if (!addr) {
         ALOGE("Bluetooth device address null");
         return JNI_FALSE;
     }

     if ( (status = sBluetoothHidInterface->get_protocol((bt_bdaddr_t *) addr, (bthh_protocol_mode_t) protocolMode)) !=
          BT_STATUS_SUCCESS) {
         ALOGE("Failed get protocol mode, status: %d", status);
         ret = JNI_FALSE;
     }
     env->ReleaseByteArrayElements(address, addr, 0);

     return ret;
 }

 static jboolean virtualUnPlugNative(JNIEnv *env, jobject object, jbyteArray address) {
     bt_status_t status;
     jbyte *addr;
     jboolean ret = JNI_TRUE;
     if (!sBluetoothHidInterface) return JNI_FALSE;

     addr = env->GetByteArrayElements(address, NULL);
         if (!addr) {
             ALOGE("Bluetooth device address null");
             return JNI_FALSE;
         }
     if ( (status = sBluetoothHidInterface->virtual_unplug((bt_bdaddr_t *) addr)) !=
              BT_STATUS_SUCCESS) {
         ALOGE("Failed virual unplug, status: %d", status);
         ret = JNI_FALSE;
     }
     env->ReleaseByteArrayElements(address, addr, 0);
     return ret;

 }


 static jboolean setProtocolModeNative(JNIEnv *env, jobject object, jbyteArray address, jint protocolMode) {
     bt_status_t status;
     jbyte *addr;
     jboolean ret = JNI_TRUE;
     if (!sBluetoothHidInterface) return JNI_FALSE;

     ALOGD("%s: protocolMode = %d", __FUNCTION__, protocolMode);

     addr = env->GetByteArrayElements(address, NULL);
     if (!addr) {
         ALOGE("Bluetooth device address null");
         return JNI_FALSE;
     }

     bthh_protocol_mode_t mode;
     switch(protocolMode){
         case 0:
             mode = BTHH_REPORT_MODE;
             break;
         case 1:
             mode = BTHH_BOOT_MODE;
             break;
         default:
             ALOGE("Unknown HID protocol mode");
             return JNI_FALSE;
     }
     if ( (status = sBluetoothHidInterface->set_protocol((bt_bdaddr_t *) addr, mode)) !=
              BT_STATUS_SUCCESS) {
         ALOGE("Failed set protocol mode, status: %d", status);
         ret = JNI_FALSE;
     }
     env->ReleaseByteArrayElements(address, addr, 0);

     return JNI_TRUE;
 }

 static jboolean getReportNative(JNIEnv *env, jobject object, jbyteArray address, jbyte reportType, jbyte reportId, jint bufferSize) {
     ALOGD("%s: reportType = %d, reportId = %d, bufferSize = %d", __FUNCTION__, reportType, reportId, bufferSize);

     bt_status_t status;
     jbyte *addr;
     jboolean ret = JNI_TRUE;
     if (!sBluetoothHidInterface) return JNI_FALSE;

     addr = env->GetByteArrayElements(address, NULL);
     if (!addr) {
         ALOGE("Bluetooth device address null");
         return JNI_FALSE;
     }

     jint rType = reportType;
     jint rId = reportId;

     if ( (status = sBluetoothHidInterface->get_report((bt_bdaddr_t *) addr, (bthh_report_type_t) rType, (uint8_t) rId, bufferSize)) !=
              BT_STATUS_SUCCESS) {
         ALOGE("Failed get report, status: %d", status);
         ret = JNI_FALSE;
     }
     env->ReleaseByteArrayElements(address, addr, 0);

     return ret;
 }


 static jboolean setReportNative(JNIEnv *env, jobject object, jbyteArray address, jbyte reportType, jstring report) {
     ALOGD("%s: reportType = %d", __FUNCTION__, reportType);
     bt_status_t status;
     jbyte *addr;
     jboolean ret = JNI_TRUE;
     if (!sBluetoothHidInterface) return JNI_FALSE;

     addr = env->GetByteArrayElements(address, NULL);
     if (!addr) {
         ALOGE("Bluetooth device address null");
         return JNI_FALSE;
     }
     jint rType = reportType;
     const char *c_report = env->GetStringUTFChars(report, NULL);

     if ( (status = sBluetoothHidInterface->set_report((bt_bdaddr_t *) addr, (bthh_report_type_t)rType, (char*) c_report)) !=
              BT_STATUS_SUCCESS) {
         ALOGE("Failed set report, status: %d", status);
         ret = JNI_FALSE;
     }
     env->ReleaseStringUTFChars(report, c_report);
     env->ReleaseByteArrayElements(address, addr, 0);

     return ret;
 }

 static jboolean sendDataNative(JNIEnv *env, jobject object, jbyteArray address, jstring report) {
     ALOGD("%s", __FUNCTION__);
     bt_status_t status;
     jbyte *addr;
     jboolean ret = JNI_TRUE;
     if (!sBluetoothHidInterface) return JNI_FALSE;

     addr = env->GetByteArrayElements(address, NULL);
     if (!addr) {
         ALOGE("Bluetooth device address null");
         return JNI_FALSE;
     }
     const char *c_report = env->GetStringUTFChars(report, NULL);
     if ( (status = sBluetoothHidInterface->send_data((bt_bdaddr_t *) addr, (char*) c_report)) !=
              BT_STATUS_SUCCESS) {
         ALOGE("Failed set report, status: %d", status);
         ret = JNI_FALSE;
     }
     env->ReleaseStringUTFChars(report, c_report);
     env->ReleaseByteArrayElements(address, addr, 0);

     return ret;

 }

 static JNINativeMethod sMethods[] = {
     {"classInitNative", "()V", (void *) classInitNative},
     {"initializeNative", "()V", (void *) initializeNative},
     {"cleanupNative", "()V", (void *) cleanupNative},
     {"connectHidNative", "([B)Z", (void *) connectHidNative},
     {"disconnectHidNative", "([B)Z", (void *) disconnectHidNative},
     {"getProtocolModeNative", "([B)Z", (void *) getProtocolModeNative},
     {"virtualUnPlugNative", "([B)Z", (void *) virtualUnPlugNative},
     {"setProtocolModeNative", "([BB)Z", (void *) setProtocolModeNative},
     {"getReportNative", "([BBBI)Z", (void *) getReportNative},
     {"setReportNative", "([BBLjava/lang/String;)Z", (void *) setReportNative},
     {"sendDataNative", "([BLjava/lang/String;)Z", (void *) sendDataNative},
 };

 int register_com_android_bluetooth_hid(JNIEnv* env)
 {
     return jniRegisterNativeMethods(env, "com/android/bluetooth/hid/HidService",
                                     sMethods, NELEM(sMethods));
 }

 }
	/*
	* 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 "BluetoothHidServiceJni"

	#define LOG_NDEBUG 0

	#define CHECK_CALLBACK_ENV \
	if (!checkCallbackThread()) { \
	ALOGE("Callback: '%s' is not called on the correct thread", __FUNCTION__);\
	return; \
	}

	#include "com_android_bluetooth.h"
	#include "hardware/bt_hh.h"
	#include "utils/Log.h"
	#include "android_runtime/AndroidRuntime.h"

	#include <string.h>

	namespace android {

	static jmethodID method_onConnectStateChanged;
	static jmethodID method_onGetProtocolMode;
	static jmethodID method_onGetReport;
	static jmethodID method_onVirtualUnplug;

	static const bthh_interface_t *sBluetoothHidInterface = NULL;
	static jobject mCallbacksObj = NULL;
	static JNIEnv *sCallbackEnv = NULL;

	static bool checkCallbackThread() {

	// Always fetch the latest callbackEnv from AdapterService.
	// Caching this could cause this sCallbackEnv to go out-of-sync
	// with the AdapterService's ENV if an ASSOCIATE/DISASSOCIATE event
	// is received

	sCallbackEnv = getCallbackEnv();

	JNIEnv* env = AndroidRuntime::getJNIEnv();
	if (sCallbackEnv != env \|\| sCallbackEnv == NULL) return false;
	return true;
	}

	static void connection_state_callback(bt_bdaddr_t *bd_addr, bthh_connection_state_t state) {
	jbyteArray addr;

	CHECK_CALLBACK_ENV
	addr = sCallbackEnv->NewByteArray(sizeof(bt_bdaddr_t));
	if (!addr) {
	ALOGE("Fail to new jbyteArray bd addr for HID channel state");
	checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
	return;
	}
	sCallbackEnv->SetByteArrayRegion(addr, 0, sizeof(bt_bdaddr_t), (jbyte *) bd_addr);

	sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onConnectStateChanged, addr, (jint) state);
	checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
	sCallbackEnv->DeleteLocalRef(addr);
	}

	static void get_protocol_mode_callback(bt_bdaddr_t *bd_addr, bthh_status_t hh_status,bthh_protocol_mode_t mode) {
	jbyteArray addr;

	CHECK_CALLBACK_ENV
	if (hh_status != BTHH_OK) {
	ALOGE("BTHH Status is not OK!");
	checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
	return;
	}

	addr = sCallbackEnv->NewByteArray(sizeof(bt_bdaddr_t));
	if (!addr) {
	ALOGE("Fail to new jbyteArray bd addr for get protocal mode callback");
	checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
	return;
	}
	sCallbackEnv->SetByteArrayRegion(addr, 0, sizeof(bt_bdaddr_t), (jbyte *) bd_addr);

	sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onGetProtocolMode, addr, (jint) mode);
	checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
	sCallbackEnv->DeleteLocalRef(addr);
	}

	static void virtual_unplug_callback(bt_bdaddr_t *bd_addr, bthh_status_t hh_status) {
	ALOGD("call to virtual_unplug_callback");
	jbyteArray addr;

	CHECK_CALLBACK_ENV
	addr = sCallbackEnv->NewByteArray(sizeof(bt_bdaddr_t));
	if (!addr) {
	ALOGE("Fail to new jbyteArray bd addr for HID channel state");
	checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
	return;
	}
	sCallbackEnv->SetByteArrayRegion(addr, 0, sizeof(bt_bdaddr_t), (jbyte *) bd_addr);

	sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onVirtualUnplug, addr, (jint) hh_status);
	checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
	sCallbackEnv->DeleteLocalRef(addr);

	/*jbyteArray addr;
	jint status = hh_status;
	CHECK_CALLBACK_ENV
	addr = sCallbackEnv->NewByteArray(sizeof(bt_bdaddr_t));
	if (!addr) {
	ALOGE("Fail to new jbyteArray bd addr for HID report");
	checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
	return;
	}
	sCallbackEnv->SetByteArrayRegion(addr, 0, sizeof(bt_bdaddr_t), (jbyte *) bd_addr);

	sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onVirtualUnplug, addr, status);
	checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
	sCallbackEnv->DeleteLocalRef(addr);*/
	}


	static bthh_callbacks_t sBluetoothHidCallbacks = {
	sizeof(sBluetoothHidCallbacks),
	connection_state_callback,
	NULL,
	get_protocol_mode_callback,
	NULL,
	NULL,
	virtual_unplug_callback
	};

	// Define native functions

	static void classInitNative(JNIEnv* env, jclass clazz) {
	int err;
	// const bt_interface_t* btInf;
	// bt_status_t status;

	method_onConnectStateChanged = env->GetMethodID(clazz, "onConnectStateChanged", "([BI)V");
	method_onGetProtocolMode = env->GetMethodID(clazz, "onGetProtocolMode", "([BI)V");
	method_onVirtualUnplug = env->GetMethodID(clazz, "onVirtualUnplug", "([BI)V");

	/*
	if ( (btInf = getBluetoothInterface()) == NULL) {
	ALOGE("Bluetooth module is not loaded");
	return;
	}

	if ( (sBluetoothHidInterface = (bthh_interface_t *)
	btInf->get_profile_interface(BT_PROFILE_HIDHOST_ID)) == NULL) {
	ALOGE("Failed to get Bluetooth Handsfree Interface");
	return;
	}

	// TODO(BT) do this only once or
	// Do we need to do this every time the BT reenables?
	if ( (status = sBluetoothHidInterface->init(&sBluetoothHidCallbacks)) != BT_STATUS_SUCCESS) {
	ALOGE("Failed to initialize Bluetooth HID, status: %d", status);
	sBluetoothHidInterface = NULL;
	return;
	}

	*/
	ALOGI("%s: succeeds", __FUNCTION__);
	}

	static void initializeNative(JNIEnv *env, jobject object) {
	const bt_interface_t* btInf;
	bt_status_t status;

	if ( (btInf = getBluetoothInterface()) == NULL) {
	ALOGE("Bluetooth module is not loaded");
	return;
	}

	if (sBluetoothHidInterface !=NULL) {
	ALOGW("Cleaning up Bluetooth HID Interface before initializing...");
	sBluetoothHidInterface->cleanup();
	sBluetoothHidInterface = NULL;
	}

	if (mCallbacksObj != NULL) {
	ALOGW("Cleaning up Bluetooth GID callback object");
	env->DeleteGlobalRef(mCallbacksObj);
	mCallbacksObj = NULL;
	}


	if ( (sBluetoothHidInterface = (bthh_interface_t *)
	btInf->get_profile_interface(BT_PROFILE_HIDHOST_ID)) == NULL) {
	ALOGE("Failed to get Bluetooth HID Interface");
	return;
	}

	if ( (status = sBluetoothHidInterface->init(&sBluetoothHidCallbacks)) != BT_STATUS_SUCCESS) {
	ALOGE("Failed to initialize Bluetooth HID, status: %d", status);
	sBluetoothHidInterface = NULL;
	return;
	}



	mCallbacksObj = env->NewGlobalRef(object);
	}

	static void cleanupNative(JNIEnv *env, jobject object) {
	const bt_interface_t* btInf;
	bt_status_t status;

	if ( (btInf = getBluetoothInterface()) == NULL) {
	ALOGE("Bluetooth module is not loaded");
	return;
	}

	if (sBluetoothHidInterface !=NULL) {
	ALOGW("Cleaning up Bluetooth HID Interface...");
	sBluetoothHidInterface->cleanup();
	sBluetoothHidInterface = NULL;
	}

	if (mCallbacksObj != NULL) {
	ALOGW("Cleaning up Bluetooth GID callback object");
	env->DeleteGlobalRef(mCallbacksObj);
	mCallbacksObj = NULL;
	}

	env->DeleteGlobalRef(mCallbacksObj);
	}

	static jboolean connectHidNative(JNIEnv *env, jobject object, jbyteArray address) {
	bt_status_t status;
	jbyte *addr;
	jboolean ret = JNI_TRUE;
	if (!sBluetoothHidInterface) return JNI_FALSE;

	addr = env->GetByteArrayElements(address, NULL);
	if (!addr) {
	ALOGE("Bluetooth device address null");
	return JNI_FALSE;
	}

	if ((status = sBluetoothHidInterface->connect((bt_bdaddr_t *) addr)) !=
	BT_STATUS_SUCCESS) {
	ALOGE("Failed HID channel connection, status: %d", status);
	ret = JNI_FALSE;
	}
	env->ReleaseByteArrayElements(address, addr, 0);

	return ret;
	}

	static jboolean disconnectHidNative(JNIEnv *env, jobject object, jbyteArray address) {
	bt_status_t status;
	jbyte *addr;
	jboolean ret = JNI_TRUE;
	if (!sBluetoothHidInterface) return JNI_FALSE;

	addr = env->GetByteArrayElements(address, NULL);
	if (!addr) {
	ALOGE("Bluetooth device address null");
	return JNI_FALSE;
	}

	if ( (status = sBluetoothHidInterface->disconnect((bt_bdaddr_t *) addr)) !=
	BT_STATUS_SUCCESS) {
	ALOGE("Failed disconnect hid channel, status: %d", status);
	ret = JNI_FALSE;
	}
	env->ReleaseByteArrayElements(address, addr, 0);

	return ret;
	}

	static jboolean getProtocolModeNative(JNIEnv *env, jobject object, jbyteArray address) {
	bt_status_t status;
	jbyte *addr;
	jboolean ret = JNI_TRUE;
	bthh_protocol_mode_t protocolMode;
	if (!sBluetoothHidInterface) return JNI_FALSE;

	addr = env->GetByteArrayElements(address, NULL);
	if (!addr) {
	ALOGE("Bluetooth device address null");
	return JNI_FALSE;
	}

	if ( (status = sBluetoothHidInterface->get_protocol((bt_bdaddr_t *) addr, (bthh_protocol_mode_t) protocolMode)) !=
	BT_STATUS_SUCCESS) {
	ALOGE("Failed get protocol mode, status: %d", status);
	ret = JNI_FALSE;
	}
	env->ReleaseByteArrayElements(address, addr, 0);

	return ret;
	}

	static jboolean virtualUnPlugNative(JNIEnv *env, jobject object, jbyteArray address) {
	bt_status_t status;
	jbyte *addr;
	jboolean ret = JNI_TRUE;
	if (!sBluetoothHidInterface) return JNI_FALSE;

	addr = env->GetByteArrayElements(address, NULL);
	if (!addr) {
	ALOGE("Bluetooth device address null");
	return JNI_FALSE;
	}
	if ( (status = sBluetoothHidInterface->virtual_unplug((bt_bdaddr_t *) addr)) !=
	BT_STATUS_SUCCESS) {
	ALOGE("Failed virual unplug, status: %d", status);
	ret = JNI_FALSE;
	}
	env->ReleaseByteArrayElements(address, addr, 0);
	return ret;

	}


	static jboolean setProtocolModeNative(JNIEnv *env, jobject object, jbyteArray address, jint protocolMode) {
	bt_status_t status;
	jbyte *addr;
	jboolean ret = JNI_TRUE;
	if (!sBluetoothHidInterface) return JNI_FALSE;

	ALOGD("%s: protocolMode = %d", __FUNCTION__, protocolMode);

	addr = env->GetByteArrayElements(address, NULL);
	if (!addr) {
	ALOGE("Bluetooth device address null");
	return JNI_FALSE;
	}

	bthh_protocol_mode_t mode;
	switch(protocolMode){
	case 0:
	mode = BTHH_REPORT_MODE;
	break;
	case 1:
	mode = BTHH_BOOT_MODE;
	break;
	default:
	ALOGE("Unknown HID protocol mode");
	return JNI_FALSE;
	}
	if ( (status = sBluetoothHidInterface->set_protocol((bt_bdaddr_t *) addr, mode)) !=
	BT_STATUS_SUCCESS) {
	ALOGE("Failed set protocol mode, status: %d", status);
	ret = JNI_FALSE;
	}
	env->ReleaseByteArrayElements(address, addr, 0);

	return JNI_TRUE;
	}

	static jboolean getReportNative(JNIEnv *env, jobject object, jbyteArray address, jbyte reportType, jbyte reportId, jint bufferSize) {
	ALOGD("%s: reportType = %d, reportId = %d, bufferSize = %d", __FUNCTION__, reportType, reportId, bufferSize);

	bt_status_t status;
	jbyte *addr;
	jboolean ret = JNI_TRUE;
	if (!sBluetoothHidInterface) return JNI_FALSE;

	addr = env->GetByteArrayElements(address, NULL);
	if (!addr) {
	ALOGE("Bluetooth device address null");
	return JNI_FALSE;
	}

	jint rType = reportType;
	jint rId = reportId;

	if ( (status = sBluetoothHidInterface->get_report((bt_bdaddr_t *) addr, (bthh_report_type_t) rType, (uint8_t) rId, bufferSize)) !=
	BT_STATUS_SUCCESS) {
	ALOGE("Failed get report, status: %d", status);
	ret = JNI_FALSE;
	}
	env->ReleaseByteArrayElements(address, addr, 0);

	return ret;
	}


	static jboolean setReportNative(JNIEnv *env, jobject object, jbyteArray address, jbyte reportType, jstring report) {
	ALOGD("%s: reportType = %d", __FUNCTION__, reportType);
	bt_status_t status;
	jbyte *addr;
	jboolean ret = JNI_TRUE;
	if (!sBluetoothHidInterface) return JNI_FALSE;

	addr = env->GetByteArrayElements(address, NULL);
	if (!addr) {
	ALOGE("Bluetooth device address null");
	return JNI_FALSE;
	}
	jint rType = reportType;
	const char *c_report = env->GetStringUTFChars(report, NULL);

	if ( (status = sBluetoothHidInterface->set_report((bt_bdaddr_t ) addr, (bthh_report_type_t)rType, (char) c_report)) !=
	BT_STATUS_SUCCESS) {
	ALOGE("Failed set report, status: %d", status);
	ret = JNI_FALSE;
	}
	env->ReleaseStringUTFChars(report, c_report);
	env->ReleaseByteArrayElements(address, addr, 0);

	return ret;
	}

	static jboolean sendDataNative(JNIEnv *env, jobject object, jbyteArray address, jstring report) {
	ALOGD("%s", __FUNCTION__);
	bt_status_t status;
	jbyte *addr;
	jboolean ret = JNI_TRUE;
	if (!sBluetoothHidInterface) return JNI_FALSE;

	addr = env->GetByteArrayElements(address, NULL);
	if (!addr) {
	ALOGE("Bluetooth device address null");
	return JNI_FALSE;
	}
	const char *c_report = env->GetStringUTFChars(report, NULL);
	if ( (status = sBluetoothHidInterface->send_data((bt_bdaddr_t ) addr, (char) c_report)) !=
	BT_STATUS_SUCCESS) {
	ALOGE("Failed set report, status: %d", status);
	ret = JNI_FALSE;
	}
	env->ReleaseStringUTFChars(report, c_report);
	env->ReleaseByteArrayElements(address, addr, 0);

	return ret;

	}

	static JNINativeMethod sMethods[] = {
	{"classInitNative", "()V", (void *) classInitNative},
	{"initializeNative", "()V", (void *) initializeNative},
	{"cleanupNative", "()V", (void *) cleanupNative},
	{"connectHidNative", "([B)Z", (void *) connectHidNative},
	{"disconnectHidNative", "([B)Z", (void *) disconnectHidNative},
	{"getProtocolModeNative", "([B)Z", (void *) getProtocolModeNative},
	{"virtualUnPlugNative", "([B)Z", (void *) virtualUnPlugNative},
	{"setProtocolModeNative", "([BB)Z", (void *) setProtocolModeNative},
	{"getReportNative", "([BBBI)Z", (void *) getReportNative},
	{"setReportNative", "([BBLjava/lang/String;)Z", (void *) setReportNative},
	{"sendDataNative", "([BLjava/lang/String;)Z", (void *) sendDataNative},
	};

	int register_com_android_bluetooth_hid(JNIEnv* env)
	{
	return jniRegisterNativeMethods(env, "com/android/bluetooth/hid/HidService",
	sMethods, NELEM(sMethods));
	}

	}