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145 lines
3.6 KiB
C++
145 lines
3.6 KiB
C++
/*
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This file is part of the GSM3 communications library for Arduino
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-- Multi-transport communications platform
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-- Fully asynchronous
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-- Includes code for the Arduino-Telefonica GSM/GPRS Shield V1
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-- Voice calls
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-- SMS
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-- TCP/IP connections
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-- HTTP basic clients
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This library has been developed by Telefónica Digital - PDI -
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- Physical Internet Lab, as part as its collaboration with
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Arduino and the Open Hardware Community.
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September-December 2012
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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The latest version of this library can always be found at
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https://github.com/BlueVia/Official-Arduino
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*/
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#include <GSM3VoiceCallService.h>
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#include <Arduino.h>
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#include <GSM3ShieldV1VoiceProvider.h>
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GSM3ShieldV1VoiceProvider theShieldV1VoiceProvider;
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// While there is only a shield (ShieldV1) we will include it by default
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#define GSM3VOICECALLSERVICE_SYNCH 0x01 // 1: synchronous 0: asynchronous
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#define __TOUT__ 10000
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GSM3VoiceCallService::GSM3VoiceCallService(bool synch)
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{
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if(synch)
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flags |= GSM3VOICECALLSERVICE_SYNCH;
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theGSM3MobileVoiceProvider->initialize();
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}
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GSM3_voiceCall_st GSM3VoiceCallService::getvoiceCallStatus()
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{
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if(theGSM3MobileVoiceProvider==0)
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return IDLE_CALL;
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return theGSM3MobileVoiceProvider->getvoiceCallStatus();
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}
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int GSM3VoiceCallService::ready()
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{
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if(theGSM3MobileVoiceProvider==0)
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return 0;
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return theGSM3MobileVoiceProvider->ready();
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}
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int GSM3VoiceCallService::voiceCall(const char* to, unsigned long timeout)
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{
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if(theGSM3MobileVoiceProvider==0)
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return 0;
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if(flags & GSM3VOICECALLSERVICE_SYNCH )
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{
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theGSM3MobileVoiceProvider->voiceCall(to);
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unsigned long m;
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m=millis();
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// Wait an answer for timeout
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while(((millis()-m)< timeout )&&(getvoiceCallStatus()==CALLING))
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delay(100);
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if(getvoiceCallStatus()==TALKING)
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return 1;
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else
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return 0;
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}
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else
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{
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return theGSM3MobileVoiceProvider->voiceCall(to);
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}
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}
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int GSM3VoiceCallService::answerCall()
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{
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if(theGSM3MobileVoiceProvider==0)
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return 0;
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return waitForAnswerIfNeeded(theGSM3MobileVoiceProvider->answerCall());
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}
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int GSM3VoiceCallService::hangCall()
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{
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if(theGSM3MobileVoiceProvider==0)
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return 0;
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return waitForAnswerIfNeeded(theGSM3MobileVoiceProvider->hangCall());
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}
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int GSM3VoiceCallService::retrieveCallingNumber(char* buffer, int bufsize)
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{
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if(theGSM3MobileVoiceProvider==0)
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return 0;
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return waitForAnswerIfNeeded(theGSM3MobileVoiceProvider->retrieveCallingNumber(buffer, bufsize));
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}
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int GSM3VoiceCallService::waitForAnswerIfNeeded(int returnvalue)
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{
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// If synchronous
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if(flags & GSM3VOICECALLSERVICE_SYNCH )
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{
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unsigned long m;
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m=millis();
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// Wait for __TOUT__
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while(((millis()-m)< __TOUT__ )&&(ready()==0))
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delay(100);
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// If everything was OK, return 1
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// else (timeout or error codes) return 0;
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if(ready()==1)
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return 1;
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else
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return 0;
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}
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// If not synchronous just kick ahead the coming result
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return ready();
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}
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