/*
?*?Copyright?2009-2011?Cedric?Priscal
?*
?*?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?
#include?
#include?
#include?
#include?
#include?
#include?

#include?“SerialPort.h“

#include?“android/log.h“
static?const?char?*TAG?=?“serial_port“;
#define?LOGI（fmt?args...）?__android_log_print（ANDROID_LOG_INFO??TAG?fmt?##args）
#define?LOGD（fmt?args...）?__android_log_print（ANDROID_LOG_DEBUG?TAG?fmt?##args）
#define?LOGE（fmt?args...）?__android_log_print（ANDROID_LOG_ERROR?TAG?fmt?##args）

static?speed_t?getBaudrate（jint?baudrate）?{
	switch?（baudrate）?{
	case?0:
		return?B0;
	case?50:
		return?B50;
	case?75:
		return?B75;
	case?110:
		return?B110;
	case?134:
		return?B134;
	case?150:
		return?B150;
	case?200:
		return?B200;
	case?300:
		return?B300;
	case?600:
		return?B600;
	case?1200:
		return?B1200;
	case?1800:
		return?B1800;
	case?2400:
		return?B2400;
	case?4800:
		return?B4800;
	case?9600:
		return?B9600;
	case?19200:
		return?B19200;
	case?38400:
		return?B38400;
	case?57600:
		return?B57600;
	case?115200:
		return?B115200;
	case?230400:
		return?B230400;
	case?460800:
		return?B460800;
	case?500000:
		return?B500000;
	case?576000:
		return?B576000;
	case?921600:
		return?B921600;
	case?1000000:
		return?B1000000;
	case?1152000:
		return?B1152000;
	case?1500000:
		return?B1500000;
	case?2000000:
		return?B2000000;
	case?2500000:
		return?B2500000;
	case?3000000:
		return?B3000000;
	case?3500000:
		return?B3500000;
	case?4000000:
		return?B4000000;
	default:
		return?-1;
	}
}

/*
?*?Class:?????android_serialport_SerialPort
?*?Method:????open
?*?Signature:?（Ljava/lang/String;II）Ljava/io/FileDescriptor;
?*/
JNIEXPORT?jobject?JNICALL?Java_android_1serialport_1api_SerialPort_open（
		JNIEnv?*env?jclass?thiz?jstring?path?jint?baudrate?jint?flags
		jint?dataBits?jint?stopBits?jint?parity）?{
	int?fd;
	speed_t?speed;
	jint?mDataBits?mStopBits?mParity;
	jobject?mFileDescriptor;

	/*?Check?arguments?*/
	{
		speed?=?getBaudrate（baudrate）;
		if?（speed?==?-1）?{
			/*?TODO:?throw?an?exception?*/
			LOGE（“Invalid?baudrate?:%d“?baudrate）;
			return?NULL;
		}
	}

	/*?Opening?device?*/
	{
		jboolean?iscopy;
		const?char?*path_utf?=?（*env）->GetStringUTFChars（env?path?&iscopy）;
		LOGD（“testpath?%s“?path_utf）;

		LOGD（“Opening?serial?port?%s?with?flags?0x%x“?path_utf
				O_RDWR?|?flags）;
//		?參數--?O_NOCTTY:通知linux系統，這個程序不會成為這個端口的控制終端.
//		???????O_NDELAY:通知linux系統不關心