/*
* 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 "BluetoothPanServiceJni"
#define LOG_NDEBUG 0
#define CHECK_CALLBACK_ENV \
if (!checkCallbackThread()) { \
error("Callback: '%s' is not called on the correct thread", __FUNCTION__);\
return; \
}
#include "com_android_bluetooth.h"
#include "hardware/bt_pan.h"
#include "utils/Log.h"
#include "android_runtime/AndroidRuntime.h"
#include <string.h>
#include <cutils/log.h>
#define info(fmt, ...) ALOGI ("%s(L%d): " fmt,__FUNCTION__, __LINE__, ## __VA_ARGS__)
#define debug(fmt, ...) ALOGD ("%s(L%d): " fmt,__FUNCTION__, __LINE__, ## __VA_ARGS__)
#define warn(fmt, ...) ALOGW ("## WARNING : %s(L%d): " fmt "##",__FUNCTION__, __LINE__, ## __VA_ARGS__)
#define error(fmt, ...) ALOGE ("## ERROR : %s(L%d): " fmt "##",__FUNCTION__, __LINE__, ## __VA_ARGS__)
#define asrt(s) if(!(s)) ALOGE ("## %s(L%d): ASSERT %s failed! ##",__FUNCTION__, __LINE__, #s)
namespace android {
static jmethodID method_onConnectStateChanged;
static jmethodID method_onControlStateChanged;
static const btpan_interface_t *sPanIf = NULL;
static jobject mCallbacksObj = NULL;
static JNIEnv *sCallbackEnv = NULL;
static bool checkCallbackThread() {
sCallbackEnv = getCallbackEnv();
JNIEnv* env = AndroidRuntime::getJNIEnv();
if (sCallbackEnv != env || sCallbackEnv == NULL) return false;
return true;
}
static void control_state_callback(btpan_control_state_t state, int local_role, bt_status_t error,
const char* ifname) {
debug("state:%d, local_role:%d, ifname:%s", state, local_role, ifname);
CHECK_CALLBACK_ENV
jstring js_ifname = sCallbackEnv->NewStringUTF(ifname);
sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onControlStateChanged, (jint)local_role, (jint)state,
(jint)error, js_ifname);
sCallbackEnv->DeleteLocalRef(js_ifname);
}
static void connection_state_callback(btpan_connection_state_t state, bt_status_t error, const bt_bdaddr_t *bd_addr,
int local_role, int remote_role) {
jbyteArray addr;
debug("state:%d, local_role:%d, remote_role:%d", state, local_role, remote_role);
CHECK_CALLBACK_ENV
addr = sCallbackEnv->NewByteArray(sizeof(bt_bdaddr_t));
if (!addr) {
error("Fail to new jbyteArray bd addr for PAN 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,
(jint)error, (jint)local_role, (jint)remote_role);
checkAndClearExceptionFromCallback(sCallbackEnv, __FUNCTION__);
sCallbackEnv->DeleteLocalRef(addr);
}
static btpan_callbacks_t sBluetoothPanCallbacks = {
sizeof(sBluetoothPanCallbacks),
control_state_callback,
connection_state_callback
};
// Define native functions
static void classInitNative(JNIEnv* env, jclass clazz) {
method_onConnectStateChanged = env->GetMethodID(clazz, "onConnectStateChanged",
"([BIIII)V");
method_onControlStateChanged = env->GetMethodID(clazz, "onControlStateChanged",
"(IIILjava/lang/String;)V");
info("succeeds");
}
static const bt_interface_t* btIf;
static void initializeNative(JNIEnv *env, jobject object) {
debug("pan");
if(btIf)
return;
if ( (btIf = getBluetoothInterface()) == NULL) {
error("Bluetooth module is not loaded");
return;
}
if (sPanIf !=NULL) {
ALOGW("Cleaning up Bluetooth PAN Interface before initializing...");
sPanIf->cleanup();
sPanIf = NULL;
}
if (mCallbacksObj != NULL) {
ALOGW("Cleaning up Bluetooth PAN callback object");
env->DeleteGlobalRef(mCallbacksObj);
mCallbacksObj = NULL;
}
if ( (sPanIf = (btpan_interface_t *)
btIf->get_profile_interface(BT_PROFILE_PAN_ID)) == NULL) {
error("Failed to get Bluetooth PAN Interface");
return;
}
mCallbacksObj = env->NewGlobalRef(object);
bt_status_t status;
if ( (status = sPanIf->init(&sBluetoothPanCallbacks)) != BT_STATUS_SUCCESS) {
error("Failed to initialize Bluetooth PAN, status: %d", status);
sPanIf = NULL;
if (mCallbacksObj != NULL) {
ALOGW("initialization failed: Cleaning up Bluetooth PAN callback object");
env->DeleteGlobalRef(mCallbacksObj);
mCallbacksObj = NULL;
}
return;
}
}
static void cleanupNative(JNIEnv *env, jobject object) {
if (!btIf) return;
if (sPanIf !=NULL) {
ALOGW("Cleaning up Bluetooth PAN Interface...");
sPanIf->cleanup();
sPanIf = NULL;
}
if (mCallbacksObj != NULL) {
ALOGW("Cleaning up Bluetooth PAN callback object");
env->DeleteGlobalRef(mCallbacksObj);
mCallbacksObj = NULL;
}
btIf = NULL;
}
static jboolean enablePanNative(JNIEnv *env, jobject object, jint local_role) {
bt_status_t status = BT_STATUS_FAIL;
debug("in");
if (sPanIf)
status = sPanIf->enable(local_role);
debug("out");
return status == BT_STATUS_SUCCESS ? JNI_TRUE : JNI_FALSE;
}
static jint getPanLocalRoleNative(JNIEnv *env, jobject object) {
debug("in");
int local_role = 0;
if (sPanIf)
local_role = sPanIf->get_local_role();
debug("out");
return (jint)local_role;
}
static jboolean connectPanNative(JNIEnv *env, jobject object, jbyteArray address,
jint src_role, jint dest_role) {
debug("in");
bt_status_t status;
jbyte *addr;
jboolean ret = JNI_TRUE;
if (!sPanIf) return JNI_FALSE;
addr = env->GetByteArrayElements(address, NULL);
if (!addr) {
error("Bluetooth device address null");
return JNI_FALSE;
}
if ((status = sPanIf->connect((bt_bdaddr_t *) addr, src_role, dest_role)) !=
BT_STATUS_SUCCESS) {
error("Failed PAN channel connection, status: %d", status);
ret = JNI_FALSE;
}
env->ReleaseByteArrayElements(address, addr, 0);
return ret;
}
static jboolean disconnectPanNative(JNIEnv *env, jobject object, jbyteArray address) {
bt_status_t status;
jbyte *addr;
jboolean ret = JNI_TRUE;
if (!sPanIf) return JNI_FALSE;
addr = env->GetByteArrayElements(address, NULL);
if (!addr) {
error("Bluetooth device address null");
return JNI_FALSE;
}
if ( (status = sPanIf->disconnect((bt_bdaddr_t *) addr)) !=
BT_STATUS_SUCCESS) {
error("Failed disconnect pan channel, status: %d", status);
ret = JNI_FALSE;
}
env->ReleaseByteArrayElements(address, addr, 0);
return ret;
}
static JNINativeMethod sMethods[] = {
{"classInitNative", "()V", (void *) classInitNative},
{"initializeNative", "()V", (void *) initializeNative},
{"cleanupNative", "()V", (void *) cleanupNative},
{"connectPanNative", "([BII)Z", (void *) connectPanNative},
{"enablePanNative", "(I)Z", (void *) enablePanNative},
{"getPanLocalRoleNative", "()I", (void *) getPanLocalRoleNative},
{"disconnectPanNative", "([B)Z", (void *) disconnectPanNative},
// TBD cleanup
};
int register_com_android_bluetooth_pan(JNIEnv* env)
{
return jniRegisterNativeMethods(env, "com/android/bluetooth/pan/PanService",
sMethods, NELEM(sMethods));
}
}