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#define LOG_TAG "HelloService"
#include "jni.h"
#include "JNIHelp.h"
#include "android_runtime/AndroidRuntime.h"
#include "utils/Vector.h"
#include <utils/misc.h>
#include <utils/Log.h>
#include <hardware/hardware.h>
#include <hardware/hello.h>
#include <stdio.h>
namespace android
{
/*在硬件抽象层中定义的硬件访问结构体,参考<hardware/hello.h>*/
struct hello_device_t* hello_device = NULL;
/*通过硬件抽象层定义的硬件访问接口设置硬件寄存器val的值*/
static void hello_setVal(JNIEnv* env, jobject clazz, jint value) {
int val = value;
LOGI("Hello JNI: set value %d to device.", val);
if(!hello_device) {
LOGI("Hello JNI: device is not open.");
return;
}
hello_device->set_val(hello_device, val);
}
/*通过硬件抽象层定义的硬件访问接口读取硬件寄存器val的值*/
static jint hello_getVal(JNIEnv* env, jobject clazz) {
int val = 0;
if(!hello_device) {
LOGI("Hello JNI: device is not open.");
return val;
}
hello_device->get_val(hello_device, &val);
LOGI("Hello JNI: get value %d from device.", val);
return val;
}
/*通过硬件抽象层定义的硬件模块打开接口打开硬件设备*/
static inline int hello_device_open(const hw_module_t* module, struct hello_device_t** device) {
return module->methods->open(module, HELLO_HARDWARE_MODULE_ID, (struct hw_device_t**)device);
}
/*通过硬件模块ID来加载指定的硬件抽象层模块并打开硬件*/
static jboolean hello_init(JNIEnv* env, jclass clazz) {
hello_module_t* module;
LOGI("Hello JNI: initializing......");
if(hw_get_module(HELLO_HARDWARE_MODULE_ID, (const struct hw_module_t**)&module) == 0) {
LOGI("Hello JNI: hello Stub found.");
if(hello_device_open(&(module->common), &hello_device) == 0) {
LOGI("Hello JNI: hello device is open.");
return 0;
}
LOGE("Hello JNI: failed to open hello device.");
return -1;
}
LOGE("Hello JNI: failed to get hello stub module.");
return -1;
}
/*JNI方法表*/
static const JNINativeMethod method_table[] = {
{"init_native", "()Z", (void*)hello_init},
{"setVal_native", "(I)V", (void*)hello_setVal},
{"getVal_native", "()I", (void*)hello_getVal},
};
/*注册JNI方法*/
int register_android_server_HelloService(JNIEnv *env) {
LOGI("hellpeng");
return jniRegisterNativeMethods(env, "com/android/server/HelloService", method_table, NELEM(method_table));
}
};
/*
* Copyright (C) 2009 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.
*/
#include "JNIHelp.h"
#include "jni.h"
#include "utils/Log.h"
#include "utils/misc.h"
namespace android {
int register_android_server_AlarmManagerService(JNIEnv* env);
int register_android_server_BatteryService(JNIEnv* env);
int register_android_server_InputApplicationHandle(JNIEnv* env);
int register_android_server_InputWindowHandle(JNIEnv* env);
int register_android_server_InputManager(JNIEnv* env);
int register_android_server_LightsService(JNIEnv* env);
int register_android_server_PowerManagerService(JNIEnv* env);
int register_android_server_UsbDeviceManager(JNIEnv* env);
int register_android_server_UsbHostManager(JNIEnv* env);
int register_android_server_VibratorService(JNIEnv* env);
int register_android_server_SystemServer(JNIEnv* env);
int register_android_server_HelloService(JNIEnv* env);
int register_android_server_location_GpsLocationProvider(JNIEnv* env);
int register_android_server_connectivity_Vpn(JNIEnv* env);
};
using namespace android;
extern "C" jint JNI_OnLoad(JavaVM* vm, void* reserved)
{
JNIEnv* env = NULL;
jint result = -1;
if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) {
LOGE("GetEnv failed!");
return result;
}
LOG_ASSERT(env, "Could not retrieve the env!");
register_android_server_PowerManagerService(env);
register_android_server_InputApplicationHandle(env);
register_android_server_InputWindowHandle(env);
register_android_server_InputManager(env);
register_android_server_LightsService(env);
register_android_server_AlarmManagerService(env);
register_android_server_BatteryService(env);
register_android_server_UsbDeviceManager(env);
register_android_server_UsbHostManager(env);
register_android_server_VibratorService(env);
register_android_server_SystemServer(env);
LOGE("onhello");
register_android_server_HelloService(env);
LOGE("onhelloend");
register_android_server_location_GpsLocationProvider(env);
register_android_server_connectivity_Vpn(env);
return JNI_VERSION_1_4;
}