//=================================================================
// GSM_U2.h for miniOS
//------------------
// support G-4511ĦBG-4513 series
//------------------
//Version 1.00	2014/09
//	1.First release version
//=================================================================

#ifndef SMS_H_
#define SMS_H_

#ifdef __cplusplus
	extern "C" {
#endif

//--Error codes
#define GM_NOERROR		0	//NO ERROR, success
#define GM_COMERROR		-1	//COM PORT ERROR
#define GM_TIMEOUT		-2	//time out
#define GM_CMDERROR		-3	//command error
#define GM_NOSMS		-4	//no sms
#define GM_NOREG		-5	//no register, or modem can't service
#define GM_INITERROR	-6	//init. Error
#define GM_BUSY			-7	//modem is busy
#define GM_READY		-8	//modem is ready to accept next command

#define GM_LINKERROR	-21	//Link to Server ERROR
#define GM_NETERROR		-22	//Network not opened ERROR

// encode style for SMS
#define GSM_7BIT		0
#define GSM_UCS2		8

//-- structure for sending/reading SMS
typedef struct STRENCODE_MSG{
	char phoneNumber[30];	//phone number
	char time[20];			//sms_time_stamp
	char msg[161];			//message's content
	unsigned char dataLen;	//Message's length, Max length: 7-bit=160 words, UCS2=70 words(140 bytes)
	char mode;				//encode style: 0=GSM_7BIT, 8=GSM_UCS2(uni-code)
} strEncode_Msg;

//-- structure for reading GPRS sockets
typedef struct GPRSDATA{
	char data[1500];		//data
	int dataLen;			//data length
	char fromIP[16];		//IP of the serverĦA000.000.000.000 and '0x00', total 16 byte
	unsigned int port;		//TCP/UDP port of the server
	int link;				//data of link[n]
} GPRSData;

//-- structure for setting network
typedef struct NET_PROFILE
{
	char APN[60];	//APN for network provided by your cellular provider
	char user[32];	//username for network provided by your cellular provider
	char pw[32];	//password for network provided by your cellular provider
	char DnsServerIP[16];  //The most basic task of DNS is to translate hostnames such as www.icpdas.com to IP address such as 96.9.41.131.
} NetProfile;

//-- structure for setting system parameters
typedef struct SYS_PROFILE
{
	char PINCode[5];	//The pin code	of SIM card, ex: "0000"
	int modemPort;		//modem port number.
	int hardware;		//hardware type. 0: G-4511ĦBG-4513 series, 1: G-4500
}SYSProfile;

//======================
//==== API for user ====
//======================

//== Get lib. version
//return:
//	version format = A.BC
int GM_SYS_GetLibVersion(void);

//== return lib. date
//parameter:
//	libDate:	a string of lib. date, format="Apr 15 2014"
void GM_SYS_GetLibDate(char* libDate);

//== initialize Modem
//		must use GM_SYS_CheckModemStatus() to check modem status later
//parameter:
//	sysProfile:	set system profile
//return:
//		GM_NOERROR:		success
//		GM_COMERROR:	comport error
//		GM_INITERROR:	init fail error
int GM_SYS_InitModem(SYSProfile sysProfile);

//== Close the modem
//		Please call GM_SYS_InitModem() to wake up modem
//		after using GM_SYS_CloseModem(1) to shut down the modem.
//parameter:
//	mode:	0:	close modem, but maintain it power on
//			1:	close modem and set it power off (only for G-4500)
//return:
//		GM_NOERROR:		no error
//		GM_CMDERROR:	command error
int GM_SYS_CloseModem(int mode);

//== check modem status, suggest you check it in your loop every time
//return:
//		GM_NOERROR:		modem register success, can service
//		GM_NOREG:		modem not registered, can't service
int GM_SYS_CheckModemStatus(void);

//== get the status of the command you sent
//return:
//	GM_BUSY:	 	modem busy, you can't send other command
//	GM_NOERROR:		success
//	GM_TIMEOUT:		time out
//	GM_CMDERROR:	command error
//	other:			please refer to error codes of HSDPA.h
int GM_SYS_CheckCmdStatus(void);

//== check signal quality
//return:
//	signal:		signal quality
//					0		-113 dBm or less
//					1		-111 dBm
//					2...30	-109... -53 dBm
//					31		-51 dBm or greater
int GM_SYS_CheckSignal(void);

//== check register
//return:
//	register flag
//			0:	not registered
//			1:	registered, home network
//			2:	not registered, and searching...
//			3:	registration denied
//			4:	unknown
//			5:	registered, roaming
int GM_SYS_CheckReg(void);

//== Set Power-control function
//	* if you use GSM library with GTM-201 serial production,
//		this function will reset GTM-201 if necessary
//parameter:
//	userPowerFunc	power-control function
//					*notice: setPowerFunc(1) is Power-ON, setPowerFunc(0) is OFF
void GM_SYS_SetPowerFunction(void (*userPowerFunc)(int));

//== Enable NITZ function
//	the NITZ function can auto-adjust RTC of the system at the moment of the modem registering to GSM system
//	Please call "GM_SYS_NITZUpdateRTC" to update RTC after GM_SYS_EnableNITZ(1).
//parameter:
//	nitz:	0=disable, 1=enable
void GM_SYS_EnableNITZ(int nitz);

//== Update the RTC of the System by NITZ
//	Notice: this function will disable all 3G/GSM function about 1~2 minutes.
//		Please use this function after you stop all 3G/GSM function
void GM_SYS_NITZUpdateRTC(void);

//== check the status of NITZ
//return:
//	0:fail, 1:success, 2 updating
int GM_SYS_CheckNITZ(void);

//======================
//==== SMS function ====
//======================

//== Send a message
//	must use "GM_SYS_CheckCmdStatus()" to check status later
//parameter:
//	strMsg: the message
//return:
//		GM_NOERROR	no error
//		GM_NOREG:	not registered, or can't service
//		GM_BUSY:	modem busy
int GM_SMS_SendMsg(strEncode_Msg strMsg);

//== Get a new sms message
//parameter:
//	msg:	new sms message
//return:
//		0:	no new message
//		1:	new message coming
int GM_SMS_GetNewMsg(strEncode_Msg* msg);

//==============================================
//==== 3G / GPRS data Transmission Function ====
//==============================================

//== Set Net profile data
//parameter:
//	netProfile:	Net profile data
//return:
//		GM_NOERROR	no error
//		GM_CMDERROR	command error
int GM_NET_SetNet(NetProfile netProfile);

//== Built TCP/UDP link
//parameter:
//	n			link number (0~6), 3G:0~6, 2G:0
//	tcp			client type, tcp=1 for TCP client ; tcp=0 for UDP client
//	serverIP	IP or Domain name of the server, Max length=63, ex: "61.111.222.333", "test.com.tw"
//	serverPort	TCP/UDP Port of the server (1~65535), ex: 1234
//return:
//		GM_NOERROR		correct parameter to install TCP/UDP link
//		GM_CMDERROR		command error
int GM_NET_InstallLink(int n, int tcp, char* serverIP, unsigned int serverPort);

//== Close NetWork
//return:
//		GM_NOERROR	no error
//		GM_CMDERROR	command error
//		GM_BUSY:	modem busy
int GM_NET_CloseNet(void);

//== get local IP
//parameter:
//	ipaddr:		IP string, format: char ipaddr[16];
void GM_NET_GetIP(char* ipaddr);

//== Close client link[n]
//parameter:
//	n:		client link[n], 3G:0~6, 2G:0
//return:
//		GM_NOERROR	no error
//		GM_CMDERROR	command error
//		GM_BUSY:	modem busy
int GM_NET_CloseLink(int n);

//== get status of Link[n]
//parameter:
//	n:	link[n], 3G:0~6, 2G:0
//return:
//		status:			0=not link, 1=linked, 2=Network closed
int GM_NET_GetLinkStatus(int n);

//== Send a packet
//	must use "GM_SYS_CheckCmdStatus()" to check status later
//parameter:
//	link:		link number, 3G:0~6, 2G:0
//	data:		data
//	dataLen:	data length, Max.=1000
//return:
//		GM_NOERROR	no error
//		GM_CMDERROR	command error
//		GM_BUSY:	modem busy
int GM_NET_Send(char link, char* data, int dataLen);

//== Get the new packet
//parameter:
//	gprsData:	new data packet
//return:
//		0:		no new packet
//		1:		new packet coming
int GM_NET_GetNewPacket(GPRSData* gprsData);

#ifdef __cplusplus
}
#endif

#endif //SMS_H_