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/* LinkMonitor.cpp */
/* Copyright (C) 2012 mbed.org, MIT License
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
* and associated documentation files (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge, publish, distribute,
* sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or
* substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#define __DEBUG__ 0
#ifndef __MODULE__
#define __MODULE__ "LinkMonitor.cpp"
#endif
#include "core/fwk.h"
#include "LinkMonitor.h"
#include <cstdio>
using std::sscanf;
#define DEFAULT_TIMEOUT 10000
LinkMonitor::LinkMonitor(ATCommandsInterface* pIf) : m_pIf(pIf), m_rssi(0), m_registrationState(REGISTRATION_STATE_UNKNOWN), m_bearer(BEARER_UNKNOWN)
{
m_gsm = true;
}
int LinkMonitor::init(bool gsm)
{
m_gsm = gsm;
if (m_gsm)
{
// we need to make sure that we setup the operator selection to be in 'numeric' format.
// i.e. it is made up of a network and country code when returned by the modem e.g. Operator = 23415. This allows easy logic parsing for
// setting up other network parameters in future.
DBG("LinkMonitor::init() being called. This should only happen once: executinging AT+COPS=0,2");
int ret = m_pIf->executeSimple("AT+COPS=0,2", NULL, DEFAULT_TIMEOUT); //Configure to set the operator string to Country Code and mobile network code
if(ret != OK)
{
WARN(" NET_PROTOCOL error from sending the AT+COPS command to the modem. ");
return NET_PROTOCOL;
}
}
return OK;
}
/*virtual*/ int LinkMonitor::onNewATResponseLine(ATCommandsInterface* pInst, const char* line)
{
DBG("Line is %s", line);
char n[32] = "";
char s[32] = "";
int v;
if( sscanf(line, "+CREG: %*d,%d", &v) >= 1 ) //Reg state is valid
{
DBG("+CREG %d", v);
switch( v )
{
case 0:
m_registrationState = REGISTRATION_STATE_UNKNOWN;
break;
case 1:
m_registrationState = REGISTRATION_STATE_HOME_NETWORK;
break;
case 2:
m_registrationState = REGISTRATION_STATE_REGISTERING;
break;
case 3:
m_registrationState = REGISTRATION_STATE_DENIED;
break;
case 4:
m_registrationState = REGISTRATION_STATE_NO_SIGNAL;
break;
case 5:
m_registrationState = REGISTRATION_STATE_ROAMING;
break;
default:
m_registrationState = REGISTRATION_STATE_UNKNOWN;
break;
}
}
else if( sscanf(line, "+COPS: %*d,%*d,\"%*[^\"]\",%d", &v) >= 1 )
{
DBG("+COPS %d", v);
switch( v )
{
case 0:
m_bearer = BEARER_GSM;
break;
case 2:
m_bearer = BEARER_UMTS;
break;
case 3:
m_bearer = BEARER_EDGE;
break;
case 4: //HSDPA
case 5: //HSUPA
case 6: //HSDPA + HSUPA
m_bearer = BEARER_HSPA;
break;
case 7:
m_bearer = BEARER_LTE;
break;
case 1: //GSM Compact
default:
m_bearer = BEARER_UNKNOWN;
break;
}
}
else if( sscanf(line, "+CSQ: %d,%*d", &v) >= 1 )
{
DBG("+CSQ %d", v);
if(v == 99) //Unknown
{
m_rssi = 0; //Unknown
}
else
{
m_rssi = -113 + 2*v;
}
}
else if ( (sscanf(line, "+CNUM: \"%[^\"]\",\"%[^\"]\",%d", n, s, &v) == 3) ||
(sscanf(line, "+CNUM: \"\",\"%[^\"]\",%d", s, &v) == 2) )
{
if (*s && ((v == 145/*number includes + */) || (v == 129/*otherwise*/))) {
strcpy(m_phoneNumber, s);
}
}
return OK;
}
/*virtual*/ int LinkMonitor::onNewEntryPrompt(ATCommandsInterface* pInst)
{
return OK;
}
int LinkMonitor::getState(int* pRssi, REGISTRATION_STATE* pRegistrationState, BEARER* pBearer)
{
m_rssi = 0;
m_registrationState = REGISTRATION_STATE_UNKNOWN;
m_bearer = BEARER_UNKNOWN;
int ret = m_pIf->execute(m_gsm ? "AT+CREG?;+COPS?;+CSQ" : "AT+CREG?;+CSQ", this, NULL, DEFAULT_TIMEOUT); //Configure to get registration info & get it; get signal quality
if(ret != OK)
{
return NET_PROTOCOL;
}
*pRssi = m_rssi;
*pRegistrationState = m_registrationState;
*pBearer = m_bearer;
return OK;
}
int LinkMonitor::getPhoneNumber(char* phoneNumber)
{
*m_phoneNumber = '\0';
if (m_gsm) {
int ret = m_pIf->execute("AT+CNUM", this, NULL, DEFAULT_TIMEOUT);
if(ret != OK)
{
return NET_PROTOCOL;
}
}
strcpy(phoneNumber, m_phoneNumber);
return OK;
}
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