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90 lines
2.1 KiB
90 lines
2.1 KiB
/**
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* @file TinyGsmCalling.tpp
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* @author Volodymyr Shymanskyy
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* @license LGPL-3.0
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* @copyright Copyright (c) 2016 Volodymyr Shymanskyy
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* @date Nov 2016
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*/
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#ifndef SRC_TINYGSMCALLING_H_
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#define SRC_TINYGSMCALLING_H_
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#include "TinyGsmCommon.h"
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#define TINY_GSM_MODEM_HAS_CALLING
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template <class modemType>
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class TinyGsmCalling {
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public:
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/*
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* Phone Call functions
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*/
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bool callAnswer() {
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return thisModem().callAnswerImpl();
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}
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bool callNumber(const String& number) {
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return thisModem().callNumberImpl(number);
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}
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bool callHangup() {
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return thisModem().callHangupImpl();
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}
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bool dtmfSend(char cmd, int duration_ms = 100) {
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return thisModem().dtmfSendImpl(cmd, duration_ms);
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}
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/*
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* CRTP Helper
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*/
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protected:
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inline const modemType& thisModem() const {
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return static_cast<const modemType&>(*this);
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}
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inline modemType& thisModem() {
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return static_cast<modemType&>(*this);
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}
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/*
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* Phone Call functions
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*/
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protected:
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bool callAnswerImpl() {
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thisModem().sendAT(GF("A"));
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return thisModem().waitResponse() == 1;
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}
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// Returns true on pick-up, false on error/busy
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bool callNumberImpl(const String& number) {
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if (number == GF("last")) {
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thisModem().sendAT(GF("DL"));
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} else {
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thisModem().sendAT(GF("D"), number, ";");
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}
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int8_t status = thisModem().waitResponse(60000L, GF("OK"), GF("BUSY"),
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GF("NO ANSWER"), GF("NO CARRIER"));
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switch (status) {
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case 1: return true;
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case 2:
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case 3: return false;
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default: return false;
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}
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}
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bool callHangupImpl() {
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thisModem().sendAT(GF("H"));
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return thisModem().waitResponse() == 1;
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}
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// 0-9,*,#,A,B,C,D
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bool dtmfSendImpl(char cmd, int duration_ms = 100) {
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duration_ms = constrain(duration_ms, 100, 1000);
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thisModem().sendAT(GF("+VTD="),
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duration_ms / 100); // VTD accepts in 1/10 of a second
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thisModem().waitResponse();
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thisModem().sendAT(GF("+VTS="), cmd);
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return thisModem().waitResponse(10000L) == 1;
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}
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};
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#endif // SRC_TINYGSMCALLING_H_
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