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/**
* @file TinyGsmClientA6.h
* @author Volodymyr Shymanskyy
* @license LGPL-3.0
* @copyright Copyright (c) 2016 Volodymyr Shymanskyy
* @date Nov 2016
*/
#ifndef TinyGsmClientA6_h
#define TinyGsmClientA6_h
//#pragma message("TinyGSM: TinyGsmClientA6")
//#define TINY_GSM_DEBUG Serial
#if !defined(TINY_GSM_RX_BUFFER)
#define TINY_GSM_RX_BUFFER 256
#endif
#define TINY_GSM_MUX_COUNT 8
#include <TinyGsmCommon.h>
#define GSM_NL "\r\n"
static const char GSM_OK[] TINY_GSM_PROGMEM = "OK" GSM_NL;
static const char GSM_ERROR[] TINY_GSM_PROGMEM = "ERROR" GSM_NL;
enum SimStatus {
SIM_ERROR = 0,
SIM_READY = 1,
SIM_LOCKED = 2,
};
enum RegStatus {
REG_UNREGISTERED = 0,
REG_SEARCHING = 2,
REG_DENIED = 3,
REG_OK_HOME = 1,
REG_OK_ROAMING = 5,
REG_UNKNOWN = 4,
};
class TinyGsmA6
{
public:
class GsmClient : public Client
{
friend class TinyGsmA6;
typedef TinyGsmFifo<uint8_t, TINY_GSM_RX_BUFFER> RxFifo;
public:
GsmClient() {}
GsmClient(TinyGsmA6& modem) {
init(&modem);
}
bool init(TinyGsmA6* modem) {
this->at = modem;
this->mux = -1;
sock_connected = false;
return true;
}
public:
virtual int connect(const char *host, uint16_t port, int timeout_s) {
stop();
TINY_GSM_YIELD();
rx.clear();
uint8_t newMux = -1;
sock_connected = at->modemConnect(host, port, &newMux, timeout_s);
if (sock_connected) {
mux = newMux;
at->sockets[mux] = this;
}
return sock_connected;
}
TINY_GSM_CLIENT_CONNECT_OVERLOADS()
virtual void stop(uint32_t maxWaitMs) {
TINY_GSM_YIELD();
at->sendAT(GF("+CIPCLOSE="), mux);
sock_connected = false;
at->waitResponse(maxWaitMs);
rx.clear();
}
virtual void stop() { stop(1000L); }
TINY_GSM_CLIENT_WRITE()
TINY_GSM_CLIENT_AVAILABLE_NO_MODEM_FIFO()
TINY_GSM_CLIENT_READ_NO_MODEM_FIFO()
TINY_GSM_CLIENT_PEEK_FLUSH_CONNECTED()
/*
* Extended API
*/
String remoteIP() TINY_GSM_ATTR_NOT_IMPLEMENTED;
private:
TinyGsmA6* at;
uint8_t mux;
bool sock_connected;
RxFifo rx;
};
public:
TinyGsmA6(Stream& stream)
: stream(stream)
{
memset(sockets, 0, sizeof(sockets));
}
/*
* Basic functions
*/
bool begin(const char* pin = NULL) {
return init(pin);
}
bool init(const char* pin = NULL) {
DBG(GF("### TinyGSM Version:"), TINYGSM_VERSION);
if (!testAT()) {
return false;
}
sendAT(GF("&FZE0")); // Factory + Reset + Echo Off
if (waitResponse() != 1) {
return false;
}
sendAT(GF("+CMEE=0")); // Turn off verbose errors
waitResponse();
sendAT(GF("+CMER=3,0,0,2")); // Set unsolicited result code output destination
waitResponse();
DBG(GF("### Modem:"), getModemName());
getSimStatus();
return true;
}
String getModemName() {
#if defined(TINY_GSM_MODEM_A6)
return "AI-Thinker A6";
#elif defined(TINY_GSM_MODEM_A7)
return "AI-Thinker A7";
#endif
return "AI-Thinker A6";
}
TINY_GSM_MODEM_SET_BAUD_IPR()
TINY_GSM_MODEM_TEST_AT()
TINY_GSM_MODEM_MAINTAIN_LISTEN()
bool factoryDefault() {
sendAT(GF("&FZE0&W")); // Factory + Reset + Echo Off + Write
waitResponse();
sendAT(GF("&W")); // Write configuration
return waitResponse() == 1;
}
TINY_GSM_MODEM_GET_INFO_ATI()
bool hasSSL() {
return false;
}
bool hasWifi() {
return false;
}
bool hasGPRS() {
return true;
}
/*
* Power functions
*/
bool restart() {
if (!testAT()) {
return false;
}
sendAT(GF("+RST=1"));
delay(3000);
return init();
}
bool poweroff() {
sendAT(GF("+CPOF"));
return waitResponse() == 1;
}
bool radioOff() TINY_GSM_ATTR_NOT_IMPLEMENTED;
bool sleepEnable(bool enable = true) TINY_GSM_ATTR_NOT_IMPLEMENTED;
/*
* SIM card functions
*/
TINY_GSM_MODEM_SIM_UNLOCK_CPIN()
String getSimCCID() {
sendAT(GF("+CCID"));
if (waitResponse(GF(GSM_NL "+SCID: SIM Card ID:")) != 1) {
return "";
}
String res = stream.readStringUntil('\n');
waitResponse();
res.trim();
return res;
}
TINY_GSM_MODEM_GET_IMEI_GSN()
SimStatus getSimStatus(unsigned long timeout_ms = 10000L) {
for (unsigned long start = millis(); millis() - start < timeout_ms; ) {
sendAT(GF("+CPIN?"));
if (waitResponse(GF(GSM_NL "+CPIN:")) != 1) {
delay(1000);
continue;
}
int status = waitResponse(GF("READY"), GF("SIM PIN"), GF("SIM PUK"));
waitResponse();
switch (status) {
case 2:
case 3: return SIM_LOCKED;
case 1: return SIM_READY;
default: return SIM_ERROR;
}
}
return SIM_ERROR;
}
TINY_GSM_MODEM_GET_REGISTRATION_XREG(CREG)
String getOperator() {
sendAT(GF("+COPS=3,0")); // Set format
waitResponse();
sendAT(GF("+COPS?"));
if (waitResponse(GF(GSM_NL "+COPS:")) != 1) {
return "";
}
streamSkipUntil('"'); // Skip mode and format
String res = stream.readStringUntil('"');
waitResponse();
return res;
}
/*
* Generic network functions
*/
TINY_GSM_MODEM_GET_CSQ()
bool isNetworkConnected() {
RegStatus s = getRegistrationStatus();
return (s == REG_OK_HOME || s == REG_OK_ROAMING);
}
TINY_GSM_MODEM_WAIT_FOR_NETWORK()
/*
* GPRS functions
*/
bool gprsConnect(const char* apn, const char* user = NULL, const char* pwd = NULL) {
gprsDisconnect();
sendAT(GF("+CGATT=1"));
if (waitResponse(60000L) != 1)
return false;
// TODO: wait AT+CGATT?
sendAT(GF("+CGDCONT=1,\"IP\",\""), apn, '"');
waitResponse();
if (!user) user = "";
if (!pwd) pwd = "";
sendAT(GF("+CSTT=\""), apn, GF("\",\""), user, GF("\",\""), pwd, GF("\""));
if (waitResponse(60000L) != 1) {
return false;
}
sendAT(GF("+CGACT=1,1"));
waitResponse(60000L);
sendAT(GF("+CIPMUX=1"));
if (waitResponse() != 1) {
return false;
}
return true;
}
bool gprsDisconnect() {
// Shut the TCP/IP connection
sendAT(GF("+CIPSHUT"));
if (waitResponse(60000L) != 1)
return false;
for (int i = 0; i<3; i++) {
sendAT(GF("+CGATT=0"));
if (waitResponse(5000L) == 1)
return true;
}
return false;
}
bool isGprsConnected() {
sendAT(GF("+CGATT?"));
if (waitResponse(GF(GSM_NL "+CGATT:")) != 1) {
return false;
}
int res = stream.readStringUntil('\n').toInt();
waitResponse();
return (res == 1);
}
/*
* IP Address functions
*/
String getLocalIP() {
sendAT(GF("+CIFSR"));
String res;
if (waitResponse(10000L, res) != 1) {
return "";
}
res.replace(GSM_NL "OK" GSM_NL, "");
res.replace(GSM_NL, "");
res.trim();
return res;
}
IPAddress localIP() {
return TinyGsmIpFromString(getLocalIP());
}
/*
* Phone Call functions
*/
bool setGsmBusy(bool busy = true) TINY_GSM_ATTR_NOT_AVAILABLE;
bool callAnswer() {
sendAT(GF("A"));
return waitResponse() == 1;
}
// Returns true on pick-up, false on error/busy
bool callNumber(const String& number) {
if (number == GF("last")) {
sendAT(GF("DLST"));
} else {
sendAT(GF("D\""), number, "\";");
}
if (waitResponse(5000L) != 1) {
return false;
}
if (waitResponse(60000L,
GF(GSM_NL "+CIEV: \"CALL\",1"),
GF(GSM_NL "+CIEV: \"CALL\",0"),
GFP(GSM_ERROR)) != 1)
{
return false;
}
int rsp = waitResponse(60000L,
GF(GSM_NL "+CIEV: \"SOUNDER\",0"),
GF(GSM_NL "+CIEV: \"CALL\",0"));
int rsp2 = waitResponse(300L, GF(GSM_NL "BUSY" GSM_NL), GF(GSM_NL "NO ANSWER" GSM_NL));
return rsp == 1 && rsp2 == 0;
}
bool callHangup() {
sendAT(GF("H"));
return waitResponse() == 1;
}
// 0-9,*,#,A,B,C,D
bool dtmfSend(char cmd, unsigned duration_ms = 100) {
duration_ms = constrain(duration_ms, 100, 1000);
// The duration parameter is not working, so we simulate it using delay..
// TODO: Maybe there's another way...
//sendAT(GF("+VTD="), duration_ms / 100);
//waitResponse();
sendAT(GF("+VTS="), cmd);
if (waitResponse(10000L) == 1) {
delay(duration_ms);
return true;
}
return false;
}
/*
* Audio functions
*/
bool audioSetHeadphones() {
sendAT(GF("+SNFS=0"));
return waitResponse() == 1;
}
bool audioSetSpeaker() {
sendAT(GF("+SNFS=1"));
return waitResponse() == 1;
}
bool audioMuteMic(bool mute) {
sendAT(GF("+CMUT="), mute);
return waitResponse() == 1;
}
/*
* Messaging functions
*/
String sendUSSD(const String& code) {
sendAT(GF("+CMGF=1"));
waitResponse();
sendAT(GF("+CSCS=\"HEX\""));
waitResponse();
sendAT(GF("+CUSD=1,\""), code, GF("\",15"));
if (waitResponse(10000L) != 1) {
return "";
}
if (waitResponse(GF(GSM_NL "+CUSD:")) != 1) {
return "";
}
stream.readStringUntil('"');
String hex = stream.readStringUntil('"');
stream.readStringUntil(',');
int dcs = stream.readStringUntil('\n').toInt();
if (dcs == 15) {
return TinyGsmDecodeHex7bit(hex);
} else if (dcs == 72) {
return TinyGsmDecodeHex16bit(hex);
} else {
return hex;
}
}
bool sendSMS(const String& number, const String& text) {
sendAT(GF("+CMGF=1"));
waitResponse();
sendAT(GF("+CMGS=\""), number, GF("\""));
if (waitResponse(GF(">")) != 1) {
return false;
}
stream.print(text);
stream.write((char)0x1A);
stream.flush();
return waitResponse(60000L) == 1;
}
/*
* Location functions
*/
String getGsmLocation() TINY_GSM_ATTR_NOT_AVAILABLE;
/*
* Battery & temperature functions
*/
uint16_t getBattVoltage() TINY_GSM_ATTR_NOT_AVAILABLE;
int8_t getBattPercent() {
sendAT(GF("+CBC?"));
if (waitResponse(GF(GSM_NL "+CBC:")) != 1) {
return false;
}
streamSkipUntil(','); // Skip battery charge status
// Read battery charge level
int res = stream.readStringUntil('\n').toInt();
// Wait for final OK
waitResponse();
return res;
}
uint8_t getBattChargeState() {
sendAT(GF("+CBC?"));
if (waitResponse(GF(GSM_NL "+CBC:")) != 1) {
return false;
}
// Read battery charge status
int res = stream.readStringUntil(',').toInt();
// Wait for final OK
waitResponse();
return res;
}
bool getBattStats(uint8_t &chargeState, int8_t &percent, uint16_t &milliVolts) {
sendAT(GF("+CBC?"));
if (waitResponse(GF(GSM_NL "+CBC:")) != 1) {
return false;
}
chargeState = stream.readStringUntil(',').toInt();
percent = stream.readStringUntil('\n').toInt();
// Wait for final OK
waitResponse();
return true;
}
float getTemperature() TINY_GSM_ATTR_NOT_AVAILABLE;
/*
* Client related functions
*/
protected:
bool modemConnect(const char* host, uint16_t port, uint8_t* mux, int timeout_s = 75) {
unsigned long startMillis = millis();
uint32_t timeout_ms = ((uint32_t)timeout_s)*1000;
sendAT(GF("+CIPSTART="), GF("\"TCP"), GF("\",\""), host, GF("\","), port);
if (waitResponse(timeout_ms, GF(GSM_NL "+CIPNUM:")) != 1) {
return false;
}
int newMux = stream.readStringUntil('\n').toInt();
int rsp = waitResponse((timeout_ms- (millis() - startMillis)),
GF("CONNECT OK" GSM_NL),
GF("CONNECT FAIL" GSM_NL),
GF("ALREADY CONNECT" GSM_NL));
if (waitResponse() != 1) {
return false;
}
*mux = newMux;
return (1 == rsp);
}
int16_t modemSend(const void* buff, size_t len, uint8_t mux) {
sendAT(GF("+CIPSEND="), mux, ',', len);
if (waitResponse(2000L, GF(GSM_NL ">")) != 1) {
return 0;
}
stream.write((uint8_t*)buff, len);
stream.flush();
if (waitResponse(10000L, GFP(GSM_OK), GF(GSM_NL "FAIL")) != 1) {
return 0;
}
return len;
}
bool modemGetConnected(uint8_t mux) {
sendAT(GF("+CIPSTATUS")); //TODO mux?
int res = waitResponse(GF(",\"CONNECTED\""), GF(",\"CLOSED\""), GF(",\"CLOSING\""), GF(",\"INITIAL\""));
waitResponse();
return 1 == res;
}
public:
/*
Utilities
*/
TINY_GSM_MODEM_STREAM_UTILITIES()
// TODO: Optimize this!
uint8_t waitResponse(uint32_t timeout_ms, String& data,
GsmConstStr r1=GFP(GSM_OK), GsmConstStr r2=GFP(GSM_ERROR),
GsmConstStr r3=NULL, GsmConstStr r4=NULL, GsmConstStr r5=NULL)
{
/*String r1s(r1); r1s.trim();
String r2s(r2); r2s.trim();
String r3s(r3); r3s.trim();
String r4s(r4); r4s.trim();
String r5s(r5); r5s.trim();
DBG("### ..:", r1s, ",", r2s, ",", r3s, ",", r4s, ",", r5s);*/
data.reserve(64);
int index = 0;
unsigned long startMillis = millis();
do {
TINY_GSM_YIELD();
while (stream.available() > 0) {
TINY_GSM_YIELD();
int a = stream.read();
if (a <= 0) continue; // Skip 0x00 bytes, just in case
data += (char)a;
if (r1 && data.endsWith(r1)) {
index = 1;
goto finish;
} else if (r2 && data.endsWith(r2)) {
index = 2;
goto finish;
} else if (r3 && data.endsWith(r3)) {
index = 3;
goto finish;
} else if (r4 && data.endsWith(r4)) {
index = 4;
goto finish;
} else if (r5 && data.endsWith(r5)) {
index = 5;
goto finish;
} else if (data.endsWith(GF("+CIPRCV:"))) {
int mux = stream.readStringUntil(',').toInt();
int len = stream.readStringUntil(',').toInt();
int len_orig = len;
if (len > sockets[mux]->rx.free()) {
DBG("### Buffer overflow: ", len, "->", sockets[mux]->rx.free());
} else {
DBG("### Got: ", len, "->", sockets[mux]->rx.free());
}
while (len--) {
TINY_GSM_MODEM_STREAM_TO_MUX_FIFO_WITH_DOUBLE_TIMEOUT
}
if (len_orig > sockets[mux]->available()) { // TODO
DBG("### Fewer characters received than expected: ", sockets[mux]->available(), " vs ", len_orig);
}
data = "";
} else if (data.endsWith(GF("+TCPCLOSED:"))) {
int mux = stream.readStringUntil('\n').toInt();
if (mux >= 0 && mux < TINY_GSM_MUX_COUNT) {
sockets[mux]->sock_connected = false;
}
data = "";
DBG("### Closed: ", mux);
}
}
} while (millis() - startMillis < timeout_ms);
finish:
if (!index) {
data.trim();
if (data.length()) {
DBG("### Unhandled:", data);
}
data = "";
}
//data.replace(GSM_NL, "/");
//DBG('<', index, '>', data);
return index;
}
uint8_t waitResponse(uint32_t timeout_ms,
GsmConstStr r1=GFP(GSM_OK), GsmConstStr r2=GFP(GSM_ERROR),
GsmConstStr r3=NULL, GsmConstStr r4=NULL, GsmConstStr r5=NULL)
{
String data;
return waitResponse(timeout_ms, data, r1, r2, r3, r4, r5);
}
uint8_t waitResponse(GsmConstStr r1=GFP(GSM_OK), GsmConstStr r2=GFP(GSM_ERROR),
GsmConstStr r3=NULL, GsmConstStr r4=NULL, GsmConstStr r5=NULL)
{
return waitResponse(1000, r1, r2, r3, r4, r5);
}
public:
Stream& stream;
protected:
GsmClient* sockets[TINY_GSM_MUX_COUNT];
};
#endif