isomodem.c
来自「modem数据通信源码」· C语言 代码 · 共 1,948 行 · 第 1/5 页
C
1,948 行
if(EG_modem_STS.mode==EM_MODEM_MODE_ASYS)
{
/* 在异步下，需要把这最后的\x0d\x0a滤掉 */
if(EI_CalcCrLf(EG_modem_STS.dialing_buf)>=2)
{
uprintf("connect time %d ms\r\n",(time_cur-EG_modem_STS.dial_start)*10);
EG_modem_STS.dial_connect = NU_Retrieve_Clock();
EI_ModemConnect();
}
else
{
/* 在收到CONNECT后的200ms后，即使没有收到2个\x0d\x0a，也认为已经在线 */
if(EG_modem_STS.dial_connect==0)
EG_modem_STS.dial_connect = NU_Retrieve_Clock();
if(time_cur>=EG_modem_STS.dial_connect+EM_TIME_TICK_IN1S/5)
{
uprintf("connect time %d ms\r\n",(time_cur-EG_modem_STS.dial_start)*10);
EI_ModemConnect();
}
}
}
else
{
EG_modem_STS.dial_connect = NU_Retrieve_Clock();
uprintf("connect time %d ms\r\n",(time_cur-EG_modem_STS.dial_start)*10);
EI_ModemConnect();
}
}
else
{
if(strstr(EG_modem_STS.dialing_buf,"NO CARRIER"))
{
uprintf("dial resp:%s",EG_modem_STS.dialing_buf);
EG_modem_STS.dial_err = EM_DIALERR_NOCARRIER;
EI_ModemOffline();
}
else if(strstr(EG_modem_STS.dialing_buf,"NO ANSWER"))
{
uprintf("dial resp:%s",EG_modem_STS.dialing_buf);
EG_modem_STS.dial_err = EM_DIALERR_NOANSWER;
EI_ModemOffline();
}
else if(strstr(EG_modem_STS.dialing_buf,"NO DIALTONE"))
{
uprintf("dial resp:%s",EG_modem_STS.dialing_buf);
EG_modem_STS.dial_err = EM_DIALERR_NODIALTONE;
EI_ModemOffline();
}
else if(strstr(EG_modem_STS.dialing_buf,"BUSY"))
{
uprintf("dial resp:%s",EG_modem_STS.dialing_buf);
EG_modem_STS.dial_err = EM_DIALERR_BUSY;
EI_ModemOffline();
}
else if(strstr(EG_modem_STS.dialing_buf,"LINE IN USE")
||strstr(EG_modem_STS.dialing_buf,"ERROR")
||strstr(EG_modem_STS.dialing_buf,"NO LINE")
||strstr(EG_modem_STS.dialing_buf,"UN-OBTAINABLE NUMBER")
)
{
uprintf("dial resp:%s",EG_modem_STS.dialing_buf);
EG_modem_STS.dial_err = EM_DIALERR_ELSE;
EI_ModemOffline();
}
if(EI_CalcCrLf(EG_modem_STS.dialing_buf)>=2)
{
/* more than 2 \x0d\x0a,not connect */
uprintf("dial resp:%s",EG_modem_STS.dialing_buf);
EG_modem_STS.dial_err = EM_DIALERR_ELSE;
EI_ModemOffline();
}
}
}
void EI_DialingTout(void)
{
UNSIGNED time_cur;
time_cur = NU_Retrieve_Clock();
switch(EG_modem_STS.online)
{
case EM_ONLINE_CONNECTED:
if(time_cur>=EM_TIME_TICK_IN1S*EG_modem_STS.max_time_todata+EG_modem_STS.dial_connect)
{
uprintf("ERROR:SNRM TIMEOUT\r\n");
EG_modem_STS.dial_err = EM_DIALERR_TIMEOUT;
EI_ModemOffline();
}
break;
case EM_ONLINE_DIALING:
if(time_cur>=EM_TIME_TICK_IN1S*EG_modem_STS.max_time_toconnect+EG_modem_STS.dial_start)
{
uprintf("ERROR:CONNECT TIMEOUT\r\n");
EG_modem_STS.dial_err = EM_DIALERR_TIMEOUT;
EI_ModemOffline();
}
break;
default:
break;
}
}
void EI_ModemConnect(void)
{
uprintf("%s\r\n",__FUNCTION__);
loop_reset(EG_modem_STS.serial_recvbuf);
loop_reset(EG_modem_STS.v80_recvbuf);
loop_reset(EG_modem_STS.hdlc_recvbuf);
switch(EG_modem_STS.mode)
{
case EM_MODEM_MODE_SDLC:
EI_Init_v80();
EI_Init_hdlc();
EI_SetModemOnline(EM_ONLINE_CONNECTED);
EI_vShow(EM_icon_SHOW,EM_icon_DCD);
break;
case EM_MODEM_MODE_ASYS:
EI_SetModemOnline(EM_ONLINE_DATA);
EI_vShow(EM_icon_SHOW,EM_icon_DCD);
EI_vShow(EM_icon_SHOW,EM_icon_ONLINE);
break;
case EM_MODEM_MODE_PPP:
EI_SetModemOnline(EM_ONLINE_DATA);
EI_vShow(EM_icon_SHOW,EM_icon_DCD);
EI_ModemStartPpp();
break;
}
}
void EI_ModemOffline(void)
{
/* don't call it in API,because it don't protect EI_SetModemOnline() */
uprintf("%s\r\n",__FUNCTION__);
EI_SetModemOnline(EM_ONLINE_OFFLINE);
EI_vShow(EM_icon_HIDDEN,EM_icon_ONLINE);
EI_vShow(EM_icon_HIDDEN,EM_icon_DCD);
EI_vShow(EM_icon_HIDDEN,EM_icon_MODEM);
}
int EI_JudegModem(void)
{
uint uiModuleID = 0;
ET_ConfigInfo ConfigInfo;
uchar ucRet;
EG_modem_STS.modem = EM_MODEM_UNKNOWN;
ucRet = EA_ucGetConfig(&uiModuleID);
if(ucRet != EM_SUCCESS)
{
uprintf("ERROR:Not get config\r\n");
return EM_ERROR;
}
if((uiModuleID & EM_CID_MODEM) == EM_CID_MODEM)
{
ucRet = EA_ucGetConfigInfo(EM_CID_MODEM, &ConfigInfo);
if( ucRet != EM_SUCCESS )
return EM_ERROR;
switch( ConfigInfo.cDriverIndex )
{
case 0x30:
uprintf("Get modem type: SI\r\n");
EG_modem_STS.modem = EM_MODEM_SI;
break ;
case 0x31:
uprintf("Get modem type: CX\r\n");
EG_modem_STS.modem = EM_MODEM_CX;
break ;
case 0x32:
uprintf("Get modem type: CX\r\n");
EG_modem_STS.modem = EM_MODEM_CX;
break ;
case 0x33:
uprintf("Get modem type: SI\r\n");
EG_modem_STS.modem = EM_MODEM_SI;
break ;
default:
uprintf("ERROR:Get modem type unknown\r\n");
EG_modem_STS.modem = EM_MODEM_UNKNOWN;
break ;
}
}
else
{
uprintf("ERROR:NOT Modem Config\r\n");
EG_modem_STS.modem = EM_MODEM_UNKNOWN;
return EM_ERROR;
}
return EM_SUCCESS;
}
void EI_SetModemRTS(void)
{
INT int_level=0;
int_level = NU_Local_Control_Interrupts(NU_DISABLE_IRQ);
EG_modem_STS.UMCOM1Bak = rUMCON1;
rUMCON1=SD_UMCON_DISABLE|SD_UMCON_RTS;
NU_Local_Control_Interrupts(int_level);
}
void EI_StartTaskSerail(void)
{
unsigned int tMsg[4];
NU_Send_To_Mailbox( &(EG_modem_STS.serial_MB),tMsg,NU_NO_SUSPEND );
}
int EI_OpenSerial(void)
{
uchar ucRet;
DevHandle hTemp;
ucRet = EA_ucOpenDevice("UART1",EM_uart_MODEM,&hTemp);
if(ucRet!=EM_SUCCESS)
{
uprintf("ERROR %s open serial fail!\n",__FUNCTION__);
return ucRet;
}
EG_modem_STS.uarthandle = hTemp;
EA_ucInitRS232(hTemp, EM_232_115200BPS, EM_232_NOPAR, EM_232_8DBS);
EI_SetModemRTS();
NU_Sleep(10);
EI_StartTaskSerail();
return EM_SUCCESS;
}
int EI_StopSerial(void)
{
INT int_level=0;
uprintf("%s \n",__FUNCTION__);
EG_modem_STS.sleep_state = SLEEP_STATE_TO_SLEEP_UART_TASK;
int_level = NU_Local_Control_Interrupts(NU_DISABLE_IRQ);
rUMCON1=EG_modem_STS.UMCOM1Bak;
NU_Local_Control_Interrupts(int_level);
NU_Obtain_Semaphore(&(EG_modem_STS.serial_SEM),NU_SUSPEND);
EA_ucCloseDevice(&EG_modem_STS.uarthandle);
NU_Release_Semaphore(&(EG_modem_STS.serial_SEM));
EI_vIntoPowerSave();
uprintf("%s over\n",__FUNCTION__);
return EM_SUCCESS;
}
void EI_SetModemOnline(unsigned int online)
{
EG_modem_STS.online = online;
}
uchar EI_PatchModem(void)
{
switch(EG_modem_STS.modem)
{
case EM_MODEM_CX:
if(EI_PatchCx(&EG_patch_Info)!=EM_SUCCESS)
return EM_ERROR;
break;
case EM_MODEM_SI:
if(EI_PatchSi(&EG_patch_Info)!=EM_SUCCESS)
return EM_ERROR;
break;
default:
return EM_ERROR;
}
return EM_SUCCESS;
}
uchar EI_Ifexistdialtone(void)
{
uchar vol;
int iEcho=0;
float fEcho=0;
switch(EG_modem_STS.modem)
{
case EM_MODEM_CX:
if(EI_cx_AT_TRV(&fEcho)!=EM_SUCCESS)
return EM_ERROR;
if((fEcho>2)&&(fEcho<12))
return EM_modem_PHONEINUSE;
else if(fEcho<2)
return EM_modem_NODIALTONE;
else
return EM_SUCCESS;
case EM_MODEM_SI:
if(EI_si_AT_R6C(&iEcho)!=EM_SUCCESS)
return EM_ERROR;
vol = iEcho >> 8;
vol = ~vol;
vol += 1;
iEcho = vol;
if((iEcho<0x10)&&(iEcho>0x03))
return EM_modem_PHONEINUSE;
else if(iEcho<0x03)
return EM_modem_NODIALTONE;
else
return EM_SUCCESS;
default:
return EM_ERROR;
}
}
uchar EI_ActiveModem(void)
{
uchar ret;
switch(EG_modem_STS.modem)
{
case EM_MODEM_CX:
EI_SendAT("A"); /* send first 'A' to active modem in stop mode */
NU_Sleep(3);
ret = EI_SendAT_OK("ATS24=0\r",1);
break;
case EM_MODEM_SI:
if(EG_modem_STS.dev==DEV_HAND)
ret = EI_ResetModem();
else
ret = EI_SendATE0_OK();
break;
default:
ret = EM_ERROR;
break;
}
return ret;
}
uchar EI_ResetModem(void)
{
int state = 0;
UNSIGNED time_start,time_cur;
INT int_level=0;
uprintf("RESET:%s\r\n",__FUNCTION__);
rPDATC&=(~EM_MODEM_RST);
NU_Sleep(2);
rPDATC|=EM_MODEM_RST;
time_start = NU_Retrieve_Clock();
time_cur = NU_Retrieve_Clock(); /* 为了去掉编译警告 */
switch(EG_modem_STS.modem)
{
case EM_MODEM_CX:
while(1)
{
time_cur = NU_Retrieve_Clock();
if(time_cur>=time_start+EM_TIME_TICK_IN1S) //1s
break;
// CTS先低120ms、再高180ms左右、再低
if((rUMSTAT1 & 0x1)==0&&state==0)
state = 1;
if((rUMSTAT1 & 0x1)!=0&&state==1)
state = 2;
if((rUMSTAT1 & 0x1)==0&&state==2)
break;
}
break;
case EM_MODEM_SI:
NU_Sleep(30); /* data sheet require */
time_cur = NU_Retrieve_Clock();
break;
default:
NU_Sleep(30);
time_cur = NU_Retrieve_Clock();
break;
}
int_level = NU_Local_Control_Interrupts(NU_DISABLE_IRQ);
uprintf("reset cost %d ms\r\n",(time_cur-time_start)*10);
NU_Local_Control_Interrupts(int_level);
return EM_SUCCESS;
}
uchar EA_MODEM_ucDrvOpen(void)
{
uint uiStatus;
int ret;
uprintf("\r\n");
uprintf("MODEM DIRVER VERSION: 03-07-03\r\n");
uprintf("\r\n");
#ifdef NEW_OS
if (EA_ucDrvIsInitialized(EM_IS_INIT_MODEM, &uiStatus) == EM_SUCCESS)
{
if (uiStatus == EM_DRV_INIT_SUCC)
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