PHS module SMA-01 library. see: https://developer.mbed.org/users/phsfan/notebook/abitusbmodem/
Dependencies: Socket lwip-sys lwip
Dependents: AbitUSBModem_HTTPTest AbitUSBModem_MQTTTest AbitUSBModem_WebsocketTest AbitUSBModem_SMSTest
Fork of VodafoneUSBModem by
ussd/USSDInterface.cpp
- Committer:
- donatien
- Date:
- 2012-10-24
- Revision:
- 59:593fb493172f
- Parent:
- 35:be311326ee06
- Child:
- 83:897a0de9d668
File content as of revision 59:593fb493172f:
/* USSDInterface.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__ "USSDInterface.cpp" #endif #include "core/fwk.h" #include "USSDInterface.h" #include <cstdio> #define DEFAULT_TIMEOUT 10000 #define USSD_TIMEOUT 15000 USSDInterface::USSDInterface(ATCommandsInterface* pIf) : m_pIf(pIf), m_responseMtx(), m_responseSphre(1), m_result(NULL), m_maxResultLength(0) { m_responseSphre.wait(0); //Take ownership of the semaphore m_pIf->registerEventsHandler(this); //Add us to the unsolicited result codes handlers } int USSDInterface::init() { DBG("Initialization done"); return OK; } int USSDInterface::send(const char* command, char* result, size_t maxLength) { if (strlen(command) > 20) //Prevent buffer overflow { return NET_TOOSMALL; } m_responseMtx.lock(); m_result = result; m_maxResultLength = maxLength; m_responseMtx.unlock(); m_responseSphre.wait(0); //Make sure there is not a pending result that needs to be discarded DBG("Send USSD command & register for unsolicited result codes"); //Send USSD command to the network char cmd[32]; std::sprintf(cmd, "AT+CUSD=1,\"%s\"", command); int ret = m_pIf->execute(cmd, this, NULL, DEFAULT_TIMEOUT); if( ret != OK ) { return NET_PROTOCOL; } //Did we already get a response (3GPP rev < 6) ? //Now wait for response int res = m_responseSphre.wait(USSD_TIMEOUT); //Reset data m_responseMtx.lock(); m_result = NULL; m_maxResultLength = 0; m_responseMtx.unlock(); if(res <= 0) { DBG("No result received"); ret = m_pIf->executeSimple("AT+CUSD=2", NULL, DEFAULT_TIMEOUT); //Cancel command if( ret != OK ) { return NET_PROTOCOL; } return NET_TIMEOUT; } DBG("Result received: %s", result); return OK; } /*virtual*/ int USSDInterface::onNewATResponseLine(ATCommandsInterface* pInst, const char* line) { const char* pSemicol = strchr(line, ':'); if( ( (pSemicol - line) != strlen("+CUSD") ) || ( memcmp(line, "+CUSD", strlen("+CUSD")) != 0) ) { WARN("Unknown code"); return OK; } const char* pData = NULL; if( pSemicol != NULL ) //Split the identifier & the result code (if it exists) { pData = pSemicol + 1; if(pData[0]==' ') { pData++; //Suppress whitespace } processResult(pData); } return OK; } /*virtual*/ int USSDInterface::onNewEntryPrompt(ATCommandsInterface* pInst) { return OK; } /*virtual*/ bool USSDInterface::isATCodeHandled(const char* atCode) //Is this AT code handled { DBG("AT code is %s", atCode); if( strcmp("+CUSD", atCode) == 0 ) { return true; } DBG("Not handled"); return false; } /*virtual*/ void USSDInterface::onDispatchStart() { } /*virtual*/ void USSDInterface::onDispatchStop() { } /*virtual*/ char* USSDInterface::getEventsEnableCommand() { return NULL; //No need to disable events here } /*virtual*/ char* USSDInterface::getEventsDisableCommand() { return NULL; //No need to re-enable events here } /*virtual*/ void USSDInterface::onEvent(const char* atCode, const char* evt) { if( strcmp("+CUSD", atCode) != 0 ) { WARN("Wrong AT Code"); return; //Not supported } processResult(evt); } void USSDInterface::processResult(const char* data) { char* pStart = (char*) strchr(data,'\"'); if(pStart==NULL) { WARN("Could not find opening quote"); return; //Invalid/incomplete response } pStart++; //Point to first char of response char* pEnd = (char*) strchr(pStart,'\"'); if(pEnd==NULL) { WARN("Could not find closing quote"); return; //Invalid/incomplete response } m_responseMtx.lock(); if(m_maxResultLength == 0) //No pending command { WARN("No pending command"); m_responseMtx.unlock(); return; } size_t cpyLen = MIN( pEnd - pStart, m_maxResultLength - 1 ); memcpy((void*)m_result, pStart, cpyLen); m_result[cpyLen] = '\0'; DBG("Got USSD response: %s", m_result); m_responseMtx.unlock(); m_responseSphre.release(); //Signal user thread that response is ready }