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/*
* 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 "BluetoothAvrcpControllerJni"
#define LOG_NDEBUG 0
#include "com_android_bluetooth.h"
#include "hardware/bt_rc.h"
#include "utils/Log.h"
#include "android_runtime/AndroidRuntime.h"
#include <string.h>
namespace android {
static jmethodID method_handlePassthroughRsp;
static jmethodID method_onConnectionStateChanged;
static const btrc_ctrl_interface_t *sBluetoothAvrcpInterface = 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 btavrcp_passthrough_response_callback(int id, int pressed) {
ALOGI("%s", __FUNCTION__);
ALOGI("id: %d, pressed: %d", id, pressed);
if (!checkCallbackThread()) {
ALOGE("Callback: '%s' is not called on the correct thread", __FUNCTION__);
return;
}
sCallbackEnv->CallVoidMethod(mCallbacksObj, method_handlePassthroughRsp, (jint)id,
(jint)pressed);
checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
}
static void btavrcp_connection_state_callback(bool state, bt_bdaddr_t* bd_addr) {
jbyteArray addr;
ALOGI("%s", __FUNCTION__);
ALOGI("conn state: %d", state);
if (!checkCallbackThread()) { \
ALOGE("Callback: '%s' is not called on the correct thread", __FUNCTION__); \
return; \
}
addr = sCallbackEnv->NewByteArray(sizeof(bt_bdaddr_t));
if (!addr) {
ALOGE("Fail to new jbyteArray bd addr for connection state");
checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
return;
}
sCallbackEnv->SetByteArrayRegion(addr, 0, sizeof(bt_bdaddr_t), (jbyte*) bd_addr);
sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onConnectionStateChanged, (jboolean) state,
addr);
checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
sCallbackEnv->DeleteLocalRef(addr);
}
static btrc_ctrl_callbacks_t sBluetoothAvrcpCallbacks = {
sizeof(sBluetoothAvrcpCallbacks),
btavrcp_passthrough_response_callback,
btavrcp_connection_state_callback
};
static void classInitNative(JNIEnv* env, jclass clazz) {
method_handlePassthroughRsp =
env->GetMethodID(clazz, "handlePassthroughRsp", "(II)V");
method_onConnectionStateChanged =
env->GetMethodID(clazz, "onConnectionStateChanged", "(Z[B)V");
ALOGI("%s: succeeds", __FUNCTION__);
}
static void initNative(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 (sBluetoothAvrcpInterface !=NULL) {
ALOGW("Cleaning up Avrcp Interface before initializing...");
sBluetoothAvrcpInterface->cleanup();
sBluetoothAvrcpInterface = NULL;
}
if (mCallbacksObj != NULL) {
ALOGW("Cleaning up Avrcp callback object");
env->DeleteGlobalRef(mCallbacksObj);
mCallbacksObj = NULL;
}
if ( (sBluetoothAvrcpInterface = (btrc_ctrl_interface_t *)
btInf->get_profile_interface(BT_PROFILE_AV_RC_CTRL_ID)) == NULL) {
ALOGE("Failed to get Bluetooth Avrcp Controller Interface");
return;
}
if ( (status = sBluetoothAvrcpInterface->init(&sBluetoothAvrcpCallbacks)) !=
BT_STATUS_SUCCESS) {
ALOGE("Failed to initialize Bluetooth Avrcp Controller, status: %d", status);
sBluetoothAvrcpInterface = NULL;
return;
}
mCallbacksObj = env->NewGlobalRef(object);
}
static void cleanupNative(JNIEnv *env, jobject object) {
const bt_interface_t* btInf;
if ( (btInf = getBluetoothInterface()) == NULL) {
ALOGE("Bluetooth module is not loaded");
return;
}
if (sBluetoothAvrcpInterface !=NULL) {
sBluetoothAvrcpInterface->cleanup();
sBluetoothAvrcpInterface = NULL;
}
if (mCallbacksObj != NULL) {
env->DeleteGlobalRef(mCallbacksObj);
mCallbacksObj = NULL;
}
}
static jboolean sendPassThroughCommandNative(JNIEnv *env, jobject object, jbyteArray address,
jint key_code, jint key_state) {
jbyte *addr;
bt_status_t status;
if (!sBluetoothAvrcpInterface) return JNI_FALSE;
ALOGI("%s: sBluetoothAvrcpInterface: %p", __FUNCTION__, sBluetoothAvrcpInterface);
ALOGI("key_code: %d, key_state: %d", key_code, key_state);
addr = env->GetByteArrayElements(address, NULL);
if (!addr) {
jniThrowIOException(env, EINVAL);
return JNI_FALSE;
}
if ((status = sBluetoothAvrcpInterface->send_pass_through_cmd((bt_bdaddr_t *)addr,
(uint8_t)key_code, (uint8_t)key_state))!= BT_STATUS_SUCCESS) {
ALOGE("Failed sending passthru command, status: %d", status);
}
env->ReleaseByteArrayElements(address, addr, 0);
return (status == BT_STATUS_SUCCESS) ? JNI_TRUE : JNI_FALSE;
}
static JNINativeMethod sMethods[] = {
{"classInitNative", "()V", (void *) classInitNative},
{"initNative", "()V", (void *) initNative},
{"cleanupNative", "()V", (void *) cleanupNative},
{"sendPassThroughCommandNative", "([BII)Z",
(void *) sendPassThroughCommandNative},
};
int register_com_android_bluetooth_avrcp_controller(JNIEnv* env)
{
return jniRegisterNativeMethods(env, "com/android/bluetooth/avrcp/AvrcpControllerService",
sMethods, NELEM(sMethods));
}
}
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