[175] | 1 | /*
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| 2 | This file is part of the GSM3 communications library for Arduino
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| 3 | -- Multi-transport communications platform
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| 4 | -- Fully asynchronous
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| 5 | -- Includes code for the Arduino-Telefonica GSM/GPRS Shield V1
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| 6 | -- Voice calls
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| 7 | -- SMS
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| 8 | -- TCP/IP connections
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| 9 | -- HTTP basic clients
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| 10 |
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| 11 | This library has been developed by Telefónica Digital - PDI -
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| 12 | - Physical Internet Lab, as part as its collaboration with
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| 13 | Arduino and the Open Hardware Community.
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| 14 |
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| 15 | September-December 2012
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| 16 |
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| 17 | This library is free software; you can redistribute it and/or
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| 18 | modify it under the terms of the GNU Lesser General Public
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| 19 | License as published by the Free Software Foundation; either
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| 20 | version 2.1 of the License, or (at your option) any later version.
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| 21 |
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| 22 | This library is distributed in the hope that it will be useful,
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| 23 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 24 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 25 | Lesser General Public License for more details.
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| 26 |
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| 27 | You should have received a copy of the GNU Lesser General Public
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| 28 | License along with this library; if not, write to the Free Software
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| 29 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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| 30 |
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| 31 | The latest version of this library can always be found at
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| 32 | https://github.com/BlueVia/Official-Arduino
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| 33 | */
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| 34 | #include <GSM3VoiceCallService.h>
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| 35 | #include <Arduino.h>
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| 36 |
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| 37 | #include <GSM3ShieldV1VoiceProvider.h>
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| 38 | GSM3ShieldV1VoiceProvider theShieldV1VoiceProvider;
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| 39 |
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| 40 | // While there is only a shield (ShieldV1) we will include it by default
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| 41 |
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| 42 | #define GSM3VOICECALLSERVICE_SYNCH 0x01 // 1: synchronous 0: asynchronous
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| 43 | #define __TOUT__ 10000
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| 44 |
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| 45 |
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| 46 |
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| 47 |
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| 48 | GSM3VoiceCallService::GSM3VoiceCallService(bool synch)
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| 49 | {
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| 50 | GSM3ShieldV1VoiceProvider theShieldV1VoiceProvider; //needed to avoid hard fault in M0
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| 51 | if(synch)
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| 52 | flags |= GSM3VOICECALLSERVICE_SYNCH;
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| 53 | theGSM3MobileVoiceProvider->initialize();
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| 54 | }
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| 55 |
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| 56 | GSM3_voiceCall_st GSM3VoiceCallService::getvoiceCallStatus()
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| 57 | {
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| 58 | if(theGSM3MobileVoiceProvider==0)
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| 59 | return IDLE_CALL;
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| 60 | theShieldV1VoiceProvider.recognizeUnsolicitedEvent(1) ;
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| 61 | return theGSM3MobileVoiceProvider->getvoiceCallStatus();
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| 62 | }
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| 63 |
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| 64 | int GSM3VoiceCallService::ready()
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| 65 | {
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| 66 | if(theGSM3MobileVoiceProvider==0)
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| 67 | return 0;
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| 68 |
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| 69 | return theGSM3MobileVoiceProvider->ready();
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| 70 | }
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| 71 |
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| 72 | int GSM3VoiceCallService::voiceCall(const char* to, unsigned long timeout)
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| 73 | {
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| 74 | if(theGSM3MobileVoiceProvider==0){
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| 75 | return 0;
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| 76 | }
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| 77 |
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| 78 | if(flags & GSM3VOICECALLSERVICE_SYNCH )
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| 79 | {
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| 80 | theGSM3MobileVoiceProvider->voiceCall(to);
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| 81 | unsigned long m;
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| 82 | m=millis();
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| 83 | // Wait an answer for timeout
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| 84 | while(((millis()-m)< timeout )&&(getvoiceCallStatus()==CALLING)){
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| 85 | delay(100);
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| 86 | }
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| 87 | if(getvoiceCallStatus()==TALKING)
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| 88 | return 1;
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| 89 | else
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| 90 | return 0;
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| 91 | }
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| 92 | else
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| 93 | {
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| 94 | return theGSM3MobileVoiceProvider->voiceCall(to);
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| 95 | }
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| 96 |
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| 97 | }
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| 98 |
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| 99 | int GSM3VoiceCallService::answerCall()
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| 100 | {
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| 101 | if(theGSM3MobileVoiceProvider==0)
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| 102 | return 0;
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| 103 |
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| 104 | return waitForAnswerIfNeeded(theGSM3MobileVoiceProvider->answerCall());
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| 105 | }
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| 106 |
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| 107 | int GSM3VoiceCallService::hangCall()
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| 108 | {
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| 109 | if(theGSM3MobileVoiceProvider==0)
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| 110 | return 0;
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| 111 |
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| 112 | return waitForAnswerIfNeeded(theGSM3MobileVoiceProvider->hangCall());
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| 113 | }
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| 114 |
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| 115 | int GSM3VoiceCallService::retrieveCallingNumber(char* buffer, int bufsize)
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| 116 | {
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| 117 | if(theGSM3MobileVoiceProvider==0)
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| 118 | return 0;
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| 119 |
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| 120 | return waitForAnswerIfNeeded(theGSM3MobileVoiceProvider->retrieveCallingNumber(buffer, bufsize));
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| 121 | }
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| 122 |
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| 123 | int GSM3VoiceCallService::waitForAnswerIfNeeded(int returnvalue)
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| 124 | {
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| 125 | // If synchronous
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| 126 | if(flags & GSM3VOICECALLSERVICE_SYNCH )
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| 127 | {
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| 128 | unsigned long m;
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| 129 | m=millis();
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| 130 | // Wait for __TOUT__
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| 131 | while(((millis()-m)< __TOUT__ )&&(ready()==0))
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| 132 | delay(100);
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| 133 | // If everything was OK, return 1
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| 134 | // else (timeout or error codes) return 0;
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| 135 | if(ready()==1)
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| 136 | return 1;
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| 137 | else
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| 138 | return 0;
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| 139 | }
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| 140 | // If not synchronous just kick ahead the coming result
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| 141 | return ready();
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| 142 | }
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| 143 |
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| 144 |
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| 145 |
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| 146 |
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