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drv/gprs/GPRSModem.cpp@0:d616ece2d859, 2010-09-18 (annotated)

Committer:: mbed714
Date:: Sat Sep 18 23:05:49 2010 +0000
Revision:: 0:d616ece2d859

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User	Revision	Line number	New contents of line
mbed714	0:d616ece2d859	1
mbed714	0:d616ece2d859	2	/*
mbed714	0:d616ece2d859	3	Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
mbed714	0:d616ece2d859	4
mbed714	0:d616ece2d859	5	Permission is hereby granted, free of charge, to any person obtaining a copy
mbed714	0:d616ece2d859	6	of this software and associated documentation files (the "Software"), to deal
mbed714	0:d616ece2d859	7	in the Software without restriction, including without limitation the rights
mbed714	0:d616ece2d859	8	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
mbed714	0:d616ece2d859	9	copies of the Software, and to permit persons to whom the Software is
mbed714	0:d616ece2d859	10	furnished to do so, subject to the following conditions:
mbed714	0:d616ece2d859	11
mbed714	0:d616ece2d859	12	The above copyright notice and this permission notice shall be included in
mbed714	0:d616ece2d859	13	all copies or substantial portions of the Software.
mbed714	0:d616ece2d859	14
mbed714	0:d616ece2d859	15	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
mbed714	0:d616ece2d859	16	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
mbed714	0:d616ece2d859	17	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
mbed714	0:d616ece2d859	18	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
mbed714	0:d616ece2d859	19	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
mbed714	0:d616ece2d859	20	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
mbed714	0:d616ece2d859	21	THE SOFTWARE.
mbed714	0:d616ece2d859	22	*/
mbed714	0:d616ece2d859	23
mbed714	0:d616ece2d859	24	#include "GPRSModem.h"
mbed714	0:d616ece2d859	25	#include "mbed.h"
mbed714	0:d616ece2d859	26
mbed714	0:d616ece2d859	27	//#define __DEBUG
mbed714	0:d616ece2d859	28	#include "dbg/dbg.h"
mbed714	0:d616ece2d859	29
mbed714	0:d616ece2d859	30	#define WAIT_BTW_NETW_POLLS 3.
mbed714	0:d616ece2d859	31
mbed714	0:d616ece2d859	32	#include "netCfg.h"
mbed714	0:d616ece2d859	33	#if NET_GPRS
mbed714	0:d616ece2d859	34
mbed714	0:d616ece2d859	35	GPRSModem::GPRSModem() : ATIf()
mbed714	0:d616ece2d859	36	{
mbed714	0:d616ece2d859	37	DBG("New GPRSModem@%p\n", this);
mbed714	0:d616ece2d859	38	}
mbed714	0:d616ece2d859	39
mbed714	0:d616ece2d859	40	GPRSModem::~GPRSModem()
mbed714	0:d616ece2d859	41	{
mbed714	0:d616ece2d859	42
mbed714	0:d616ece2d859	43	}
mbed714	0:d616ece2d859	44
mbed714	0:d616ece2d859	45	GPRSErr GPRSModem::getNetworkState()
mbed714	0:d616ece2d859	46	{
mbed714	0:d616ece2d859	47	ATIf::flushBuffer();
mbed714	0:d616ece2d859	48	/*
mbed714	0:d616ece2d859	49	netState can be : (Telit_AT_Reference_Guide.pdf p.98)
mbed714	0:d616ece2d859	50	0 - not registered, ME is not currently searching a new operator to register to
mbed714	0:d616ece2d859	51	1 - registered, home network
mbed714	0:d616ece2d859	52	2 - not registered, but ME is currently searching a new operator to register to
mbed714	0:d616ece2d859	53	3 - registration denied
mbed714	0:d616ece2d859	54	4 - unknown
mbed714	0:d616ece2d859	55	5 - registered, roaming
mbed714	0:d616ece2d859	56	*/
mbed714	0:d616ece2d859	57	// DBG("Network?...\r\n");
mbed714	0:d616ece2d859	58	ATIf::setReadMode(false); //Discard chars
mbed714	0:d616ece2d859	59	ATIf::setTimeout(10000);
mbed714	0:d616ece2d859	60	ATIf::setLineMode(true); //Line mode
mbed714	0:d616ece2d859	61	int netState = 0;
mbed714	0:d616ece2d859	62	int len;
mbed714	0:d616ece2d859	63	len = ATIf::printf("AT+CREG?"); //Registered ?
mbed714	0:d616ece2d859	64	if(!len) DBG("\r\nprintf - len=%d\r\n",len);
mbed714	0:d616ece2d859	65	if(!len)
mbed714	0:d616ece2d859	66	return GPRS_MODEM; //Nothing was actually sent
mbed714	0:d616ece2d859	67
mbed714	0:d616ece2d859	68	len = ATIf::scanf("+CREG: 0,%d", &netState); //Get status
mbed714	0:d616ece2d859	69	if(len != 1) DBG("\r\nscanf - len=%d\r\n",len);
mbed714	0:d616ece2d859	70	if(len != 1) //Likely +CMS ERROR was returned
mbed714	0:d616ece2d859	71	return GPRS_MODEM;
mbed714	0:d616ece2d859	72
mbed714	0:d616ece2d859	73	if( !!ATIf::checkOK() ) //Should not be a problem
mbed714	0:d616ece2d859	74	{DBG("\r\nNOK\r\n"); return GPRS_MODEM; }
mbed714	0:d616ece2d859	75
mbed714	0:d616ece2d859	76	switch(netState)
mbed714	0:d616ece2d859	77	{
mbed714	0:d616ece2d859	78	case 1:
mbed714	0:d616ece2d859	79	case 5: //TODO: Option allow roaming
mbed714	0:d616ece2d859	80	DBG("\r\nNetwork is up!\r\n");
mbed714	0:d616ece2d859	81	return GPRS_OK;
mbed714	0:d616ece2d859	82	case 3:
mbed714	0:d616ece2d859	83	DBG("\r\nAccess to network denied.\r\n");
mbed714	0:d616ece2d859	84	return GPRS_DENIED;
mbed714	0:d616ece2d859	85	case 0:
mbed714	0:d616ece2d859	86	DBG("\r\nNo network.\r\n");
mbed714	0:d616ece2d859	87	return GPRS_NONETWORK;
mbed714	0:d616ece2d859	88	case 4:
mbed714	0:d616ece2d859	89	case 2:
mbed714	0:d616ece2d859	90	//DBG("\r\nRegistering...\r\n");
mbed714	0:d616ece2d859	91	return GPRS_REGISTERING;
mbed714	0:d616ece2d859	92	}
mbed714	0:d616ece2d859	93
mbed714	0:d616ece2d859	94	return GPRS_MODEM; // Should not reach this
mbed714	0:d616ece2d859	95
mbed714	0:d616ece2d859	96	}
mbed714	0:d616ece2d859	97
mbed714	0:d616ece2d859	98	GPRSErr GPRSModem::setNetworkUp()
mbed714	0:d616ece2d859	99	{
mbed714	0:d616ece2d859	100	ATIf::flushBuffer();
mbed714	0:d616ece2d859	101	GPRSErr err = GPRS_REGISTERING;
mbed714	0:d616ece2d859	102	while(true)
mbed714	0:d616ece2d859	103	{
mbed714	0:d616ece2d859	104	err = getNetworkState();
mbed714	0:d616ece2d859	105	if(err != GPRS_REGISTERING)
mbed714	0:d616ece2d859	106	break;
mbed714	0:d616ece2d859	107	wait(WAIT_BTW_NETW_POLLS);
mbed714	0:d616ece2d859	108	}
mbed714	0:d616ece2d859	109	return err;
mbed714	0:d616ece2d859	110	}
mbed714	0:d616ece2d859	111
mbed714	0:d616ece2d859	112	//Same, but for GPRS
mbed714	0:d616ece2d859	113	GPRSErr GPRSModem::getGPRSState()
mbed714	0:d616ece2d859	114	{
mbed714	0:d616ece2d859	115	ATIf::flushBuffer();
mbed714	0:d616ece2d859	116	/*
mbed714	0:d616ece2d859	117	netState can be : (Telit_AT_Reference_Guide.pdf p.192)
mbed714	0:d616ece2d859	118	0 - not registered, terminal is not currently searching a new operator to register to
mbed714	0:d616ece2d859	119	1 - registered, home network
mbed714	0:d616ece2d859	120	2 - not registered, but terminal is currently searching a new operator to register to
mbed714	0:d616ece2d859	121	3 - registration denied
mbed714	0:d616ece2d859	122	4 - unknown
mbed714	0:d616ece2d859	123	5 - registered, roaming
mbed714	0:d616ece2d859	124	*/
mbed714	0:d616ece2d859	125
mbed714	0:d616ece2d859	126	DBG("GPRS?...\r\n");
mbed714	0:d616ece2d859	127	ATIf::setReadMode(false); //Discard chars
mbed714	0:d616ece2d859	128	ATIf::setTimeout(10000);
mbed714	0:d616ece2d859	129	ATIf::setLineMode(true); //Line mode
mbed714	0:d616ece2d859	130	int netState = 0;
mbed714	0:d616ece2d859	131	int len;
mbed714	0:d616ece2d859	132	len = ATIf::printf("AT+CGREG?"); //Registered ?
mbed714	0:d616ece2d859	133	if(!len)
mbed714	0:d616ece2d859	134	return GPRS_MODEM; //Nothing was actually sent
mbed714	0:d616ece2d859	135
mbed714	0:d616ece2d859	136	len = ATIf::scanf("+CGREG: %*d,%d", &netState); //Get GPRS status, see GSM 07.07 spec as Telit AT ref is wrong
mbed714	0:d616ece2d859	137	if(len != 1) DBG("\r\nscanf - len=%d\r\n",len);
mbed714	0:d616ece2d859	138	if(len != 1) //Likely +CMS ERROR was returned
mbed714	0:d616ece2d859	139	return GPRS_MODEM;
mbed714	0:d616ece2d859	140
mbed714	0:d616ece2d859	141	if( !!ATIf::checkOK() ) //Should not be a problem
mbed714	0:d616ece2d859	142	return GPRS_MODEM;
mbed714	0:d616ece2d859	143
mbed714	0:d616ece2d859	144	switch(netState)
mbed714	0:d616ece2d859	145	{
mbed714	0:d616ece2d859	146	case 1:
mbed714	0:d616ece2d859	147	case 5: //TODO: Option allow roaming
mbed714	0:d616ece2d859	148	DBG("\r\nNetwork is up!\r\n");
mbed714	0:d616ece2d859	149	return GPRS_OK;
mbed714	0:d616ece2d859	150	case 3:
mbed714	0:d616ece2d859	151	DBG("\r\nAccess to network denied.\r\n");
mbed714	0:d616ece2d859	152	return GPRS_DENIED;
mbed714	0:d616ece2d859	153	case 0:
mbed714	0:d616ece2d859	154	DBG("\r\nNo network.\r\n");
mbed714	0:d616ece2d859	155	return GPRS_NONETWORK;
mbed714	0:d616ece2d859	156	case 4:
mbed714	0:d616ece2d859	157	case 2:
mbed714	0:d616ece2d859	158	DBG("\r\nRegistering...\r\n");
mbed714	0:d616ece2d859	159	return GPRS_REGISTERING;
mbed714	0:d616ece2d859	160	}
mbed714	0:d616ece2d859	161
mbed714	0:d616ece2d859	162	return GPRS_MODEM; // Should not reach this
mbed714	0:d616ece2d859	163
mbed714	0:d616ece2d859	164	}
mbed714	0:d616ece2d859	165
mbed714	0:d616ece2d859	166	GPRSErr GPRSModem::setGPRSUp()
mbed714	0:d616ece2d859	167	{
mbed714	0:d616ece2d859	168	ATIf::flushBuffer();
mbed714	0:d616ece2d859	169	GPRSErr err;
mbed714	0:d616ece2d859	170
mbed714	0:d616ece2d859	171	err = setNetworkUp();
mbed714	0:d616ece2d859	172	if(err)
mbed714	0:d616ece2d859	173	return err;
mbed714	0:d616ece2d859	174
mbed714	0:d616ece2d859	175	DBG("\r\nAttaching GPRS...\r\n");
mbed714	0:d616ece2d859	176	ATIf::setReadMode(false); //Discard chars
mbed714	0:d616ece2d859	177	ATIf::setTimeout(10000);
mbed714	0:d616ece2d859	178	ATIf::setLineMode(true); //Line mode
mbed714	0:d616ece2d859	179	int len;
mbed714	0:d616ece2d859	180
mbed714	0:d616ece2d859	181	err = getGPRSState();
mbed714	0:d616ece2d859	182	if(err == GPRS_NONETWORK)
mbed714	0:d616ece2d859	183	{
mbed714	0:d616ece2d859	184	len = ATIf::printf("AT+CGATT=1"); //Attach
mbed714	0:d616ece2d859	185	if(!len)
mbed714	0:d616ece2d859	186	return GPRS_MODEM; //Nothing was actually sent
mbed714	0:d616ece2d859	187
mbed714	0:d616ece2d859	188	if( !!ATIf::checkOK() ) //Should not be a problem
mbed714	0:d616ece2d859	189	return GPRS_MODEM;
mbed714	0:d616ece2d859	190	}
mbed714	0:d616ece2d859	191
mbed714	0:d616ece2d859	192	while(true)
mbed714	0:d616ece2d859	193	{
mbed714	0:d616ece2d859	194	err = getGPRSState();
mbed714	0:d616ece2d859	195	if(err != GPRS_REGISTERING)
mbed714	0:d616ece2d859	196	break;
mbed714	0:d616ece2d859	197	wait(WAIT_BTW_NETW_POLLS);
mbed714	0:d616ece2d859	198	}
mbed714	0:d616ece2d859	199	return err;
mbed714	0:d616ece2d859	200	}
mbed714	0:d616ece2d859	201
mbed714	0:d616ece2d859	202	GPRSErr GPRSModem::setGPRSDown()
mbed714	0:d616ece2d859	203	{
mbed714	0:d616ece2d859	204	ATIf::flushBuffer();
mbed714	0:d616ece2d859	205	DBG("\r\nDetaching GPRS...\r\n");
mbed714	0:d616ece2d859	206	ATIf::setReadMode(false); //Discard chars
mbed714	0:d616ece2d859	207	ATIf::setTimeout(10000);
mbed714	0:d616ece2d859	208	ATIf::setLineMode(true); //Line mode
mbed714	0:d616ece2d859	209	int len;
mbed714	0:d616ece2d859	210
mbed714	0:d616ece2d859	211	len = ATIf::printf("AT+CGATT=0"); //Detach
mbed714	0:d616ece2d859	212	if(!len)
mbed714	0:d616ece2d859	213	return GPRS_MODEM; //Nothing was actually sent
mbed714	0:d616ece2d859	214
mbed714	0:d616ece2d859	215	if( !!ATIf::checkOK() ) //Should not be a problem
mbed714	0:d616ece2d859	216	return GPRS_MODEM;
mbed714	0:d616ece2d859	217
mbed714	0:d616ece2d859	218	return GPRS_OK;
mbed714	0:d616ece2d859	219	}
mbed714	0:d616ece2d859	220
mbed714	0:d616ece2d859	221
mbed714	0:d616ece2d859	222	GPRSErr GPRSModem::connect(const char* apn /=NULL/)
mbed714	0:d616ece2d859	223	{
mbed714	0:d616ece2d859	224	ATIf::flushBuffer();
mbed714	0:d616ece2d859	225	GPRSErr err;
mbed714	0:d616ece2d859	226
mbed714	0:d616ece2d859	227	ATIf::setReadMode(false); //Discard chars
mbed714	0:d616ece2d859	228	ATIf::setTimeout(5000);
mbed714	0:d616ece2d859	229	ATIf::setLineMode(true); //Line mode
mbed714	0:d616ece2d859	230
mbed714	0:d616ece2d859	231	DBG("\r\nConnecting...\r\n");
mbed714	0:d616ece2d859	232
mbed714	0:d616ece2d859	233	int len;
mbed714	0:d616ece2d859	234
mbed714	0:d616ece2d859	235	if( apn != NULL ) //Config APN
mbed714	0:d616ece2d859	236	{
mbed714	0:d616ece2d859	237	len = ATIf::printf("AT+CGDCONT=1,\"IP\",\"%s\"",apn); //Define APN
mbed714	0:d616ece2d859	238	if(!len)
mbed714	0:d616ece2d859	239	return GPRS_MODEM; //Nothing was actually sent
mbed714	0:d616ece2d859	240
mbed714	0:d616ece2d859	241	if( !!ATIf::checkOK() ) //Should not be a problem
mbed714	0:d616ece2d859	242	return GPRS_MODEM;
mbed714	0:d616ece2d859	243	}
mbed714	0:d616ece2d859	244
mbed714	0:d616ece2d859	245	err = setGPRSUp();
mbed714	0:d616ece2d859	246	if(err)
mbed714	0:d616ece2d859	247	return err;
mbed714	0:d616ece2d859	248
mbed714	0:d616ece2d859	249	ATIf::setReadMode(false); //Discard chars
mbed714	0:d616ece2d859	250	ATIf::setTimeout(60000);
mbed714	0:d616ece2d859	251	ATIf::setLineMode(true); //Line mode
mbed714	0:d616ece2d859	252	//
mbed714	0:d616ece2d859	253	//len = ATIf::printf("AT+CGDATA=\"PPP\",1"); //Connect using PDP context #1
mbed714	0:d616ece2d859	254	// len = ATIf::printf("ATDT 99**1#");
mbed714	0:d616ece2d859	255	len = ATIf::printf("ATDT *99#");
mbed714	0:d616ece2d859	256	if(!len)
mbed714	0:d616ece2d859	257	return GPRS_MODEM; //Nothing was actually sent
mbed714	0:d616ece2d859	258
mbed714	0:d616ece2d859	259	len = ATIf::scanf("CONNECT"); //Beginning of session
mbed714	0:d616ece2d859	260	if(len != 0) //Likely +CME ERROR was returned or NO CARRIER
mbed714	0:d616ece2d859	261	return GPRS_MODEM;
mbed714	0:d616ece2d859	262
mbed714	0:d616ece2d859	263	//ATIf::setSignals(false);
mbed714	0:d616ece2d859	264
mbed714	0:d616ece2d859	265	DBG("\r\nConnected.\r\n");
mbed714	0:d616ece2d859	266
mbed714	0:d616ece2d859	267	return GPRS_OK; //Time to enter a PPP Session !
mbed714	0:d616ece2d859	268
mbed714	0:d616ece2d859	269	}
mbed714	0:d616ece2d859	270
mbed714	0:d616ece2d859	271	GPRSErr GPRSModem::disconnect()
mbed714	0:d616ece2d859	272	{
mbed714	0:d616ece2d859	273	ATIf::flushBuffer();
mbed714	0:d616ece2d859	274	ATIf::setReadMode(false); //Discard chars
mbed714	0:d616ece2d859	275	ATIf::setTimeout(5000);
mbed714	0:d616ece2d859	276	ATIf::setLineMode(true); //Line mode
mbed714	0:d616ece2d859	277
mbed714	0:d616ece2d859	278	if( !!ATIf::checkOK() ) //Should be present at the end of connection
mbed714	0:d616ece2d859	279	return GPRS_MODEM;
mbed714	0:d616ece2d859	280
mbed714	0:d616ece2d859	281	GPRSErr err;
mbed714	0:d616ece2d859	282	err = setGPRSDown();
mbed714	0:d616ece2d859	283	if(err)
mbed714	0:d616ece2d859	284	return err;
mbed714	0:d616ece2d859	285
mbed714	0:d616ece2d859	286	DBG("\r\nDisconnected.\r\n");
mbed714	0:d616ece2d859	287
mbed714	0:d616ece2d859	288	return GPRS_OK;
mbed714	0:d616ece2d859	289	}
mbed714	0:d616ece2d859	290
mbed714	0:d616ece2d859	291	#endif
mbed714	0:d616ece2d859	292

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Type:	Library
Created:	18 Sep 2010
Imports:	1
Forks:	0
Commits:	1
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drv/gprs/GPRSModem.cpp@0:d616ece2d859, 2010-09-18 (annotated)

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