初始化框架，完成扫描回调，语音接口
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163
app/jni/rockchip.c
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163
app/jni/rockchip.c
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/*
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* Copyright 2009-2011 Cedric Priscal
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <termios.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <string.h>
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#include <jni.h>
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#include "rockchip.h"
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#include "android/log.h"
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static const char *TAG="RockChip";
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#define LOGI(fmt, args...) __android_log_print(ANDROID_LOG_INFO, TAG, fmt, ##args)
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#define LOGD(fmt, args...) __android_log_print(ANDROID_LOG_DEBUG, TAG, fmt, ##args)
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#define LOGE(fmt, args...) __android_log_print(ANDROID_LOG_ERROR, TAG, fmt, ##args)
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static speed_t getBaudrate(jint baudrate)
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{
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switch(baudrate) {
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case 0: return B0;
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case 50: return B50;
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case 75: return B75;
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case 110: return B110;
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case 134: return B134;
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case 150: return B150;
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case 200: return B200;
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case 300: return B300;
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case 600: return B600;
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case 1200: return B1200;
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case 1800: return B1800;
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case 2400: return B2400;
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case 4800: return B4800;
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case 9600: return B9600;
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case 19200: return B19200;
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case 38400: return B38400;
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case 57600: return B57600;
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case 115200: return B115200;
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case 230400: return B230400;
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case 460800: return B460800;
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case 500000: return B500000;
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case 576000: return B576000;
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case 921600: return B921600;
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case 1000000: return B1000000;
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case 1152000: return B1152000;
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case 1500000: return B1500000;
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case 2000000: return B2000000;
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case 2500000: return B2500000;
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case 3000000: return B3000000;
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case 3500000: return B3500000;
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case 4000000: return B4000000;
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default: return -1;
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}
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}
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/*
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* Class: android_serialport_SerialPort
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* Method: open
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* Signature: (Ljava/lang/String;II)Ljava/io/FileDescriptor;
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*/
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JNIEXPORT jobject JNICALL Java_chaoran_business_adapter_RockChipAdapter_open
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(JNIEnv *env, jclass thiz, jstring path, jint baudrate, jint flags)
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{
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int fd;
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speed_t speed;
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jobject mFileDescriptor;
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/* Check arguments */
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{
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speed = getBaudrate(baudrate);
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if (speed == -1) {
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LOGE("Invalid baudrate");
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return NULL;
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}
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}
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/* Opening device */
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{
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jboolean iscopy;
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const char *path_utf = (*env)->GetStringUTFChars(env, path, &iscopy);
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LOGD("Opening serial port %s with flags 0x%x", path_utf, O_RDWR | flags);
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fd = open(path_utf, O_RDWR | flags);
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LOGD("open() fd = %d", fd);
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(*env)->ReleaseStringUTFChars(env, path, path_utf);
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if (fd == -1)
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{
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/* Throw an exception */
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LOGE("Cannot open port");
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return NULL;
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}
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}
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/* Configure device */
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{
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struct termios cfg;
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LOGD("Configuring serial port");
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if (tcgetattr(fd, &cfg))
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{
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LOGE("tcgetattr() failed");
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close(fd);
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return NULL;
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}
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cfmakeraw(&cfg);
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cfsetispeed(&cfg, speed);
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cfsetospeed(&cfg, speed);
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if (tcsetattr(fd, TCSANOW, &cfg))
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{
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LOGE("tcsetattr() failed");
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close(fd);
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return NULL;
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}
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}
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/* Create a corresponding file descriptor */
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{
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jclass cFileDescriptor = (*env)->FindClass(env, "java/io/FileDescriptor");
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jmethodID iFileDescriptor = (*env)->GetMethodID(env, cFileDescriptor, "<init>", "()V");
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jfieldID descriptorID = (*env)->GetFieldID(env, cFileDescriptor, "descriptor", "I");
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mFileDescriptor = (*env)->NewObject(env, cFileDescriptor, iFileDescriptor);
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(*env)->SetIntField(env, mFileDescriptor, descriptorID, (jint)fd);
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}
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return mFileDescriptor;
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}
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/*
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* Class: cedric_serial_SerialPort
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* Method: close
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* Signature: ()V
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*/
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JNIEXPORT void JNICALL Java_chaoran_business_adapter_RockChipAdapter_close
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(JNIEnv *env, jobject thiz)
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{
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jclass SerialPortClass = (*env)->GetObjectClass(env, thiz);
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jclass FileDescriptorClass = (*env)->FindClass(env, "java/io/FileDescriptor");
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jfieldID mFdID = (*env)->GetFieldID(env, SerialPortClass, "mFd", "Ljava/io/FileDescriptor;");
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jfieldID descriptorID = (*env)->GetFieldID(env, FileDescriptorClass, "descriptor", "I");
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jobject mFd = (*env)->GetObjectField(env, thiz, mFdID);
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jint descriptor = (*env)->GetIntField(env, mFd, descriptorID);
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LOGD("close(fd = %d)", descriptor);
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close(descriptor);
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}
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