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TinyGSM/src/TinyGsmClientSIM7000.h
Sara Damiano de4162907d Added destructors
2019-05-16 12:15:48 -04:00

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/**
* @file TinyGsmClientSIM7000.h
* @author Volodymyr Shymanskyy
* @license LGPL-3.0
* @copyright Copyright (c) 2016 Volodymyr Shymanskyy
* @date Nov 2016
*/
#ifndef TinyGsmClientSIM7000_h
#define TinyGsmClientSIM7000_h
#define TINY_GSM_DEBUG Serial
//#define TINY_GSM_USE_HEX
#if !defined(TINY_GSM_RX_BUFFER)
#define TINY_GSM_RX_BUFFER 64
#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,
};
enum TinyGSMDateTimeFormat {
DATE_FULL = 0,
DATE_TIME = 1,
DATE_DATE = 2
};
class TinyGsmSim7000 : public TinyGsmModem
{
public:
class GsmClient : public Client
{
friend class TinyGsmSim7000;
typedef TinyGsmFifo<uint8_t, TINY_GSM_RX_BUFFER> RxFifo;
public:
GsmClient() {}
GsmClient(TinyGsmSim7000& modem, uint8_t mux = 1) {
init(&modem, mux);
}
bool init(TinyGsmSim7000* modem, uint8_t mux = 1) {
this->at = modem;
this->mux = mux;
sock_available = 0;
prev_check = 0;
sock_connected = false;
got_data = false;
at->sockets[mux] = this;
// ^^ TODO: attach the socket here at init? Or later at connect?
// Currently done inconsistently between modems
return true;
}
public:
virtual int connect(const char *host, uint16_t port) {
stop();
TINY_GSM_YIELD();
rx.clear();
sock_connected = at->modemConnect(host, port, mux);
// sock_connected = at->modemConnect(host, port, &mux);
// at->sockets[mux] = this;
// ^^ TODO: attach the socket after attempting connection or above at init?
// Currently done inconsistently between modems
return sock_connected;
}
virtual int connect(IPAddress ip, uint16_t port) {
String host; host.reserve(16);
host += ip[0];
host += ".";
host += ip[1];
host += ".";
host += ip[2];
host += ".";
host += ip[3];
return connect(host.c_str(), port);
}
virtual void stop() {
TINY_GSM_YIELD();
// Read and dump anything remaining in the modem's internal buffer.
// The socket will appear open in response to connected() even after it
// closes until all data is read from the buffer.
// Doing it this way allows the external mcu to find and get all of the data
// that it wants from the socket even if it was closed externally.
rx.clear();
at->maintain();
while (sock_available > 0) {
at->modemRead(TinyGsmMin((uint16_t)rx.free(), sock_available), mux);
rx.clear();
at->maintain();
}
at->sendAT(GF("+CIPCLOSE="), mux);
sock_connected = false;
at->waitResponse();
}
virtual size_t write(const uint8_t *buf, size_t size) {
TINY_GSM_YIELD();
at->maintain();
return at->modemSend(buf, size, mux);
}
virtual size_t write(uint8_t c) {
return write(&c, 1);
}
virtual size_t write(const char *str) {
if (str == NULL) return 0;
return write((const uint8_t *)str, strlen(str));
}
virtual int available() {
TINY_GSM_YIELD();
if (!rx.size()) {
// TODO: Is this needed for SIM7000?
// Workaround: sometimes SIM7000 forgets to notify about data arrival.
// TODO: Currently we ping the module periodically,
// but maybe there's a better indicator that we need to poll
if (millis() - prev_check > 250) {
got_data = true;
prev_check = millis();
}
at->maintain();
}
return rx.size() + sock_available;
}
virtual int read(uint8_t *buf, size_t size) {
TINY_GSM_YIELD();
at->maintain();
size_t cnt = 0;
while (cnt < size) {
size_t chunk = TinyGsmMin(size-cnt, rx.size());
if (chunk > 0) {
rx.get(buf, chunk);
buf += chunk;
cnt += chunk;
continue;
}
// TODO: Is this needed for SIM7000?
// Workaround: sometimes SIM7000 forgets to notify about data arrival.
// TODO: Currently we ping the module periodically,
// but maybe there's a better indicator that we need to poll
if (millis() - prev_check > 250) {
got_data = true;
prev_check = millis();
}
// TODO: Read directly into user buffer?
at->maintain();
if (sock_available > 0) {
at->modemRead(TinyGsmMin((uint16_t)rx.free(), sock_available), mux);
} else {
break;
}
}
return cnt;
}
virtual int read() {
uint8_t c;
if (read(&c, 1) == 1) {
return c;
}
return -1;
}
virtual int peek() { return -1; } //TODO
virtual void flush() { at->stream.flush(); }
virtual uint8_t connected() {
if (available()) {
return true;
}
return sock_connected;
}
virtual operator bool() { return connected(); }
/*
* Extended API
*/
String remoteIP() TINY_GSM_ATTR_NOT_IMPLEMENTED;
private:
TinyGsmSim7000* at;
uint8_t mux;
uint16_t sock_available;
uint32_t prev_check;
bool sock_connected;
bool got_data;
RxFifo rx;
};
class GsmClientSecure : public GsmClient
{
public:
GsmClientSecure() {}
GsmClientSecure(TinyGsmSim7000& modem, uint8_t mux = 1)
: GsmClient(modem, mux)
{}
public:
virtual int connect(const char *host, uint16_t port) {
stop();
TINY_GSM_YIELD();
rx.clear();
sock_connected = at->modemConnect(host, port, mux, true);
// sock_connected = at->modemConnect(host, port, &mux, true);
// at->sockets[mux] = this;
// TODO: When is the socket attached?
return sock_connected;
}
};
public:
TinyGsmSim7000(Stream& stream)
: TinyGsmModem(stream), stream(stream)
{
memset(sockets, 0, sizeof(sockets));
}
virtual ~TinyGsmSim7000() {}
/*
* Basic functions
*/
bool init(const char* pin = NULL) {
DBG(GF("### TinyGSM Version:"), TINYGSM_VERSION);
if (!testAT()) {
return false;
}
sendAT(GF("E0")); // Echo Off
if (waitResponse() != 1) {
return false;
}
DBG(GF("### Modem:"), getModemName());
getSimStatus();
return true;
}
String getModemName() {
return "SIMCom SIM7000";
}
void setBaud(unsigned long baud) {
sendAT(GF("+IPR="), baud);
}
bool testAT(unsigned long timeout = 10000L) {
//streamWrite(GF("AAAAA" GSM_NL)); // TODO: extra A's to help detect the baud rate
for (unsigned long start = millis(); millis() - start < timeout; ) {
sendAT(GF(""));
if (waitResponse(200) == 1) return true;
delay(100);
}
return false;
}
void maintain() {
for (int mux = 0; mux < TINY_GSM_MUX_COUNT; mux++) {
GsmClient* sock = sockets[mux];
if (sock && sock->got_data) {
sock->got_data = false;
sock->sock_available = modemGetAvailable(mux);
}
}
while (stream.available()) {
waitResponse(10, NULL, NULL);
}
}
bool factoryDefault() { // these commands aren't supported
return false;
}
String getModemInfo() {
sendAT(GF("I"));
String res;
if (waitResponse(1000L, res) != 1) {
return "";
}
res.replace(GSM_NL "OK" GSM_NL, "");
res.replace(GSM_NL, " ");
res.trim();
return res;
}
bool hasSSL() {
return false; // TODO: Module supports SSL, but not yet implemented
}
bool hasWifi() {
return false;
}
bool hasGPRS() {
return true;
}
/*
* Power functions
*/
bool restart() {
if (!testAT()) {
return false;
}
//Enable Local Time Stamp for getting network time
// TODO: Find a better place for this
sendAT(GF("+CLTS=1"));
if (waitResponse(10000L) != 1) {
return false;
}
sendAT(GF("+CFUN=0"));
if (waitResponse(10000L) != 1) {
return false;
}
sendAT(GF("+CFUN=1,1"));
if (waitResponse(10000L) != 1) {
return false;
}
delay(3000); //TODO: Test this delay
return init();
}
bool poweroff() {
sendAT(GF("+CPOWD=1"));
return waitResponse(GF("NORMAL POWER DOWN")) == 1;
}
bool radioOff() {
sendAT(GF("+CFUN=0"));
if (waitResponse(10000L) != 1) {
return false;
}
delay(3000);
return true;
}
/*
During sleep, the SIM7000 module has its serial communication disabled.
In order to reestablish communication pull the DRT-pin of the SIM7000 module
LOW for at least 50ms. Then use this function to disable sleep mode.
The DTR-pin can then be released again.
*/
bool sleepEnable(bool enable = true) {
sendAT(GF("+CSCLK="), enable);
return waitResponse() == 1;
}
/*
* SIM card functions
*/
bool simUnlock(const char *pin) {
sendAT(GF("+CPIN=\""), pin, GF("\""));
return waitResponse() == 1;
}
String getSimCCID() {
sendAT(GF("+ICCID"));
if (waitResponse(GF(GSM_NL "+ICCID:")) != 1) {
return "";
}
String res = stream.readStringUntil('\n');
waitResponse();
res.trim();
return res;
}
String getIMEI() {
sendAT(GF("+GSN"));
if (waitResponse(GF(GSM_NL)) != 1) {
return "";
}
String res = stream.readStringUntil('\n');
waitResponse();
res.trim();
return res;
}
SimStatus getSimStatus(unsigned long timeout = 10000L) {
for (unsigned long start = millis(); millis() - start < timeout; ) {
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;
}
RegStatus getRegistrationStatus() {
sendAT(GF("+CGREG?"));
// TODO: Shouldn't this be CEREG for the EPS status of this 4G module?
if (waitResponse(GF(GSM_NL "+CGREG:")) != 1) {
return REG_UNKNOWN;
}
streamSkipUntil(','); // Skip format (0)
int status = stream.readStringUntil('\n').toInt();
waitResponse();
return (RegStatus)status;
}
String getOperator() {
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
*/
int16_t getSignalQuality() {
sendAT(GF("+CSQ"));
if (waitResponse(GF(GSM_NL "+CSQ:")) != 1) {
return 99;
}
int res = stream.readStringUntil(',').toInt();
waitResponse();
return res;
}
bool isNetworkConnected() {
RegStatus s = getRegistrationStatus();
return (s == REG_OK_HOME || s == REG_OK_ROAMING);
}
String getNetworkModes() {
sendAT(GF("+CNMP=?"));
if (waitResponse(GF(GSM_NL "+CNMP:")) != 1) {
return "";
}
String res = stream.readStringUntil('\n');
waitResponse();
return res;
}
String setNetworkMode(uint8_t mode) {
sendAT(GF("+CNMP="), mode);
if (waitResponse(GF(GSM_NL "+CNMP:")) != 1) {
return "OK";
}
String res = stream.readStringUntil('\n');
waitResponse();
return res;
}
String getPreferredModes() {
sendAT(GF("+CMNB=?"));
if (waitResponse(GF(GSM_NL "+CMNB:")) != 1) {
return "";
}
String res = stream.readStringUntil('\n');
waitResponse();
return res;
}
String setPreferredMode(uint8_t mode) {
sendAT(GF("+CMNB="), mode);
if (waitResponse(GF(GSM_NL "+CMNB:")) != 1) {
return "OK";
}
String res = stream.readStringUntil('\n');
waitResponse();
return res;
}
/*
* GPRS functions
*/
bool gprsConnect(const char* apn, const char* user = NULL, const char* pwd = NULL) {
gprsDisconnect();
// Set the Bearer for the IP
sendAT(GF("+SAPBR=3,1,\"Contype\",\"GPRS\"")); // Set the connection type to GPRS
waitResponse();
sendAT(GF("+SAPBR=3,1,\"APN\",\""), apn, '"'); // Set the APN
waitResponse();
if (user && strlen(user) > 0) {
sendAT(GF("+SAPBR=3,1,\"USER\",\""), user, '"'); // Set the user name
waitResponse();
}
if (pwd && strlen(pwd) > 0) {
sendAT(GF("+SAPBR=3,1,\"PWD\",\""), pwd, '"'); // Set the password
waitResponse();
}
// Define the PDP context
sendAT(GF("+CGDCONT=1,\"IP\",\""), apn, '"');
waitResponse();
// Activate the PDP context
sendAT(GF("+CGACT=1,1"));
waitResponse(60000L);
// Open the definied GPRS bearer context
sendAT(GF("+SAPBR=1,1"));
waitResponse(85000L);
// Query the GPRS bearer context status
sendAT(GF("+SAPBR=2,1"));
if (waitResponse(30000L) != 1)
return false;
// Attach to GPRS
sendAT(GF("+CGATT=1"));
if (waitResponse(60000L) != 1)
return false;
// TODO: wait AT+CGATT?
// Set to multi-IP
sendAT(GF("+CIPMUX=1"));
if (waitResponse() != 1) {
return false;
}
// Put in "quick send" mode (thus no extra "Send OK")
sendAT(GF("+CIPQSEND=1"));
if (waitResponse() != 1) {
return false;
}
// Set to get data manually
sendAT(GF("+CIPRXGET=1"));
if (waitResponse() != 1) {
return false;
}
// Start Task and Set APN, USER NAME, PASSWORD
sendAT(GF("+CSTT=\""), apn, GF("\",\""), user, GF("\",\""), pwd, GF("\""));
if (waitResponse(60000L) != 1) {
return false;
}
// Bring Up Wireless Connection with GPRS or CSD
sendAT(GF("+CIICR"));
if (waitResponse(60000L) != 1) {
return false;
}
// Get Local IP Address, only assigned after connection
sendAT(GF("+CIFSR;E0"));
if (waitResponse(10000L) != 1) {
return false;
}
return true;
}
bool gprsDisconnect() {
// Shut the TCP/IP connection
sendAT(GF("+CIPSHUT"));
if (waitResponse(60000L) != 1)
return false;
sendAT(GF("+CGATT=0")); // Deactivate the bearer context
if (waitResponse(60000L) != 1)
return false;
return true;
}
bool isGprsConnected() {
sendAT(GF("+CGATT?"));
if (waitResponse(GF(GSM_NL "+CGATT:")) != 1) {
return false;
}
int res = stream.readStringUntil('\n').toInt();
waitResponse();
if (res != 1)
return false;
sendAT(GF("+CIFSR;E0")); // Another option is to use AT+CGPADDR=1
if (waitResponse() != 1)
return false;
return true;
}
/*
* IP Address functions
*/
String getLocalIP() {
sendAT(GF("+CIFSR;E0"));
String res;
if (waitResponse(10000L, res) != 1) {
return "";
}
res.replace(GSM_NL "OK" GSM_NL, "");
res.replace(GSM_NL, "");
res.trim();
return res;
}
/*
* Phone Call functions
*/
bool setGsmBusy() TINY_GSM_ATTR_NOT_IMPLEMENTED;
bool callAnswer() TINY_GSM_ATTR_NOT_IMPLEMENTED;
bool callNumber() TINY_GSM_ATTR_NOT_IMPLEMENTED;
bool callHangup() TINY_GSM_ATTR_NOT_IMPLEMENTED;
bool dtmfSend() TINY_GSM_ATTR_NOT_IMPLEMENTED;
/*
* Messaging functions
*/
String sendUSSD(const String& code) {
sendAT(GF("+CMGF=1"));
waitResponse();
sendAT(GF("+CSCS=\"HEX\""));
waitResponse();
sendAT(GF("+CUSD=1,\""), code, GF("\""));
if (waitResponse() != 1) {
return "";
}
if (waitResponse(10000L, GF(GSM_NL "+CUSD:")) != 1) {
return "";
}
stream.readStringUntil('"');
String hex = stream.readStringUntil('"');
stream.readStringUntil(',');
int dcs = stream.readStringUntil('\n').toInt();
if (dcs == 15) {
return TinyGsmDecodeHex8bit(hex);
} else if (dcs == 72) {
return TinyGsmDecodeHex16bit(hex);
} else {
return hex;
}
}
bool sendSMS(const String& number, const String& text) {
sendAT(GF("+AT+CSCA?"));
waitResponse();
sendAT(GF("+CMGF=1"));
waitResponse();
//Set GSM 7 bit default alphabet (3GPP TS 23.038)
sendAT(GF("+CSCS=\"GSM\""));
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;
}
bool sendSMS_UTF16(const String& number, const void* text, size_t len) {
sendAT(GF("+CMGF=1"));
waitResponse();
sendAT(GF("+CSCS=\"HEX\""));
waitResponse();
sendAT(GF("+CSMP=17,167,0,8"));
waitResponse();
sendAT(GF("+CMGS=\""), number, GF("\""));
if (waitResponse(GF(">")) != 1) {
return false;
}
uint16_t* t = (uint16_t*)text;
for (size_t i=0; i<len; i++) {
uint8_t c = t[i] >> 8;
if (c < 0x10) { stream.print('0'); }
stream.print(c, HEX);
c = t[i] & 0xFF;
if (c < 0x10) { stream.print('0'); }
stream.print(c, HEX);
}
stream.write((char)0x1A);
stream.flush();
return waitResponse(60000L) == 1;
}
/*
* Location functions
*/
String getGsmLocation() {
sendAT(GF("+CIPGSMLOC=1,1"));
if (waitResponse(10000L, GF(GSM_NL "+CIPGSMLOC:")) != 1) {
return "";
}
String res = stream.readStringUntil('\n');
waitResponse();
res.trim();
return res;
}
/*
* GPS location functions
*/
// enable GPS
bool enableGPS() {
sendAT(GF("+CGNSPWR=1"));
if (waitResponse() != 1) {
return false;
}
return true;
}
bool disableGPS() {
sendAT(GF("+CGNSPWR=0"));
if (waitResponse() != 1) {
return false;
}
return true;
}
// get the RAW GPS output
String getGPSraw() {
sendAT(GF("+CGNSINF"));
if (waitResponse(GF(GSM_NL "+CGNSINF:")) != 1) {
return "";
}
String res = stream.readStringUntil('\n');
waitResponse();
res.trim();
return res;
}
// get GPS informations
bool getGPS(float *lat, float *lon, float *speed=0, int *alt=0, int *vsat=0, int *usat=0) {
//String buffer = "";
bool fix = false;
sendAT(GF("+CGNSINF"));
if (waitResponse(GF(GSM_NL "+CGNSINF:")) != 1) {
return false;
}
stream.readStringUntil(','); // mode
if ( stream.readStringUntil(',').toInt() == 1 ) fix = true;
stream.readStringUntil(','); //utctime
*lat = stream.readStringUntil(',').toFloat(); //lat
*lon = stream.readStringUntil(',').toFloat(); //lon
if (alt != NULL) *alt = stream.readStringUntil(',').toFloat(); //lon
if (speed != NULL) *speed = stream.readStringUntil(',').toFloat(); //speed
stream.readStringUntil(',');
stream.readStringUntil(',');
stream.readStringUntil(',');
stream.readStringUntil(',');
stream.readStringUntil(',');
stream.readStringUntil(',');
stream.readStringUntil(',');
if (vsat != NULL) *vsat = stream.readStringUntil(',').toInt(); //viewed satelites
if (usat != NULL) *usat = stream.readStringUntil(',').toInt(); //used satelites
stream.readStringUntil('\n');
waitResponse();
return fix;
}
/*
* Time functions
*/
String getGSMDateTime(TinyGSMDateTimeFormat format) {
sendAT(GF("+CCLK?"));
if (waitResponse(2000L, GF(GSM_NL "+CCLK: \"")) != 1) {
return "";
}
String res;
switch(format) {
case DATE_FULL:
res = stream.readStringUntil('"');
break;
case DATE_TIME:
streamSkipUntil(',');
res = stream.readStringUntil('"');
break;
case DATE_DATE:
res = stream.readStringUntil(',');
break;
}
return res;
}
// get GPS time
bool getGPSTime(int *year, int *month, int *day, int *hour, int *minute, int *second) {
bool fix = false;
char chr_buffer[12];
sendAT(GF("+CGNSINF"));
if (waitResponse(GF(GSM_NL "+CGNSINF:")) != 1) {
return false;
}
for (int i = 0; i < 3; i++) {
String buffer = stream.readStringUntil(',');
buffer.toCharArray(chr_buffer, sizeof(chr_buffer));
switch (i) {
case 0:
//mode
break;
case 1:
//fixstatus
if ( buffer.toInt() == 1 ) {
fix = buffer.toInt();
}
break;
case 2:
*year = buffer.substring(0,4).toInt();
*month = buffer.substring(4,6).toInt();
*day = buffer.substring(6,8).toInt();
*hour = buffer.substring(8,10).toInt();
*minute = buffer.substring(10,12).toInt();
*second = buffer.substring(12,14).toInt();
break;
default:
// if nothing else matches, do the default
// default is optional
break;
}
}
String res = stream.readStringUntil('\n');
waitResponse();
if (fix) {
return true;
} else {
return false;
}
}
/*
* Battery functions
*/
// Use: float vBatt = modem.getBattVoltage() / 1000.0;
uint16_t getBattVoltage() {
sendAT(GF("+CBC"));
if (waitResponse(GF(GSM_NL "+CBC:")) != 1) {
return 0;
}
streamSkipUntil(','); // Skip
streamSkipUntil(','); // Skip
uint16_t res = stream.readStringUntil(',').toInt();
waitResponse();
return res;
}
int8_t getBattPercent() {
sendAT(GF("+CBC"));
if (waitResponse(GF(GSM_NL "+CBC:")) != 1) {
return false;
}
stream.readStringUntil(',');
int res = stream.readStringUntil(',').toInt();
waitResponse();
return res;
}
/*
* Client related functions
*/
protected:
bool modemConnect(const char* host, uint16_t port, uint8_t mux, bool ssl = false) {
int rsp;
sendAT(GF("+CIPSTART="), mux, ',', GF("\"TCP"), GF("\",\""), host, GF("\","), port);
rsp = waitResponse(75000L,
GF("CONNECT OK" GSM_NL),
GF("CONNECT FAIL" GSM_NL),
GF("ALREADY CONNECT" GSM_NL),
GF("ERROR" GSM_NL),
GF("CLOSE OK" GSM_NL) // Happens when HTTPS handshake fails
);
return (1 == rsp);
}
int16_t modemSend(const void* buff, size_t len, uint8_t mux) {
sendAT(GF("+CIPSEND="), mux, ',', len);
if (waitResponse(GF(">")) != 1) {
return 0;
}
stream.write((uint8_t*)buff, len);
stream.flush();
if (waitResponse(GF(GSM_NL "DATA ACCEPT:")) != 1) {
return 0;
}
streamSkipUntil(','); // Skip mux
maintain(); // look for a very quick response from the remote
return stream.readStringUntil('\n').toInt();
}
size_t modemRead(size_t size, uint8_t mux) {
#ifdef TINY_GSM_USE_HEX
sendAT(GF("+CIPRXGET=3,"), mux, ',', size);
if (waitResponse(GF("+CIPRXGET:")) != 1) {
return 0;
}
#else
sendAT(GF("+CIPRXGET=2,"), mux, ',', size);
if (waitResponse(GF("+CIPRXGET:")) != 1) {
return 0;
}
#endif
streamSkipUntil(','); // Skip Rx mode 2/normal or 3/HEX
streamSkipUntil(','); // Skip mux
size_t len_requested = stream.readStringUntil(',').toInt();
// ^^ Requested number of data bytes (1-1460 bytes)to be read
size_t len_confirmed = stream.readStringUntil('\n').toInt();
if (len_confirmed > len_requested) {
DBG(len_requested - len_confirmed, "fewer bytes confirmed than requested!");
}
sockets[mux]->sock_available = len_confirmed;
// ^^ Confirmed number of data bytes to be read, which may be less than requested.
// 0 indicates that no data can be read.
for (size_t i=0; i<len_confirmed; i++) {
#ifdef TINY_GSM_USE_HEX
while (stream.available() < 2) { TINY_GSM_YIELD(); }
char buf[4] = { 0, };
buf[0] = stream.read();
buf[1] = stream.read();
char c = strtol(buf, NULL, 16);
#else
while (!stream.available()) { TINY_GSM_YIELD(); }
char c = stream.read();
#endif
sockets[mux]->rx.put(c);
}
waitResponse();
DBG("### READ:", len_confirmed, "from", mux);
maintain(); // Listen for a close or other URC
return len_confirmed;
}
size_t modemGetAvailable(uint8_t mux) {
sendAT(GF("+CIPRXGET=4,"), mux);
size_t result = 0;
if (waitResponse(GF("+CIPRXGET:")) == 1) {
streamSkipUntil(','); // Skip mode 4
streamSkipUntil(','); // Skip mux
result = stream.readStringUntil('\n').toInt();
waitResponse();
}
if (!result) {
sockets[mux]->sock_connected = modemGetConnected(mux);
}
maintain(); // Listen for a close or other URC
return result;
}
bool modemGetConnected(uint8_t mux) {
sendAT(GF("+CIPSTATUS="), mux);
int res = waitResponse(GF(",\"CONNECTED\""), GF(",\"CLOSED\""), GF(",\"CLOSING\""), GF(",\"INITIAL\""));
waitResponse();
maintain(); // Listen for a close or other URC
return 1 == res;
}
public:
/*
Utilities
*/
template<typename... Args>
void sendAT(Args... cmd) {
streamWrite("AT", cmd..., GSM_NL);
stream.flush();
TINY_GSM_YIELD();
//DBG("### AT:", cmd...);
}
// TODO: Optimize this!
uint8_t waitResponse(uint32_t timeout, 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) {
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(GSM_NL "+CIPRXGET:"))) {
String mode = stream.readStringUntil(',');
if (mode.toInt() == 1) {
int mux = stream.readStringUntil('\n').toInt();
if (mux >= 0 && mux < TINY_GSM_MUX_COUNT && sockets[mux]) {
sockets[mux]->got_data = true;
}
data = "";
DBG("### Got Data:", mux);
} else {
data += mode;
}
} else if (data.endsWith(GF(GSM_NL "+RECEIVE:"))) {
int mux = stream.readStringUntil(',').toInt();
int len = stream.readStringUntil('\n').toInt();
if (mux >= 0 && mux < TINY_GSM_MUX_COUNT && sockets[mux]) {
sockets[mux]->got_data = true;
sockets[mux]->sock_available = len;
}
data = "";
DBG("### Got Data:", len, "on", mux);
} else if (data.endsWith(GF("CLOSED" GSM_NL))) {
int nl = data.lastIndexOf(GSM_NL, data.length()-8);
int coma = data.indexOf(',', nl+2);
int mux = data.substring(nl+2, coma).toInt();
if (mux >= 0 && mux < TINY_GSM_MUX_COUNT && sockets[mux]) {
sockets[mux]->sock_connected = false;
}
data = "";
DBG("### Closed: ", mux);
}
}
} while (millis() - startMillis < timeout);
finish:
if (!index) {
data.trim();
if (data.length()) {
DBG("### Unhandled:", data);
}
data = "";
}
//DBG('<', index, '>');
return index;
}
uint8_t waitResponse(uint32_t timeout,
GsmConstStr r1=GFP(GSM_OK), GsmConstStr r2=GFP(GSM_ERROR),
GsmConstStr r3=NULL, GsmConstStr r4=NULL, GsmConstStr r5=NULL)
{
String data;
return waitResponse(timeout, 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
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