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TinyGSM_Senseright/src/TinyGsmClientBG96.h

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/**
* @file TinyGsmClientBG96.h
* @author Volodymyr Shymanskyy
* @license LGPL-3.0
* @copyright Copyright (c) 2016 Volodymyr Shymanskyy
* @date Apr 2018
*/
#ifndef TinyGsmClientBG96_h
#define TinyGsmClientBG96_h
//#pragma message("TinyGSM: TinyGsmClientBG96")
//#define TINY_GSM_DEBUG Serial
//#define TINY_GSM_USE_HEX
#define TINY_GSM_MUX_COUNT 12
#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 TinyGsmBG96
{
public:
class GsmClient : public Client
{
friend class TinyGsmBG96;
typedef TinyGsmFifo<uint8_t, TINY_GSM_RX_BUFFER> RxFifo;
public:
GsmClient() {}
GsmClient(TinyGsmBG96& modem, uint8_t mux = 1) {
init(&modem, mux);
}
bool init(TinyGsmBG96* modem, uint8_t mux = 1) {
this->at = modem;
this->mux = mux;
sock_available = 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("+QICLOSE="), 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()) {
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: 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:
TinyGsmBG96* at;
uint8_t mux;
uint16_t sock_available;
bool sock_connected;
bool got_data;
RxFifo rx;
};
// class GsmClientSecure : public GsmClient
// {
// public:
// GsmClientSecure() {}
//
// GsmClientSecure(TinyGsmBG96& 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);
// return sock_connected;
// }
// };
public:
TinyGsmBG96(Stream& stream)
: stream(stream)
{
memset(sockets, 0, sizeof(sockets));
}
/*
* Basic functions
*/
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;
}
DBG(GF("### Modem:"), getModemName());
getSimStatus();
return true;
}
bool begin(const char* pin = NULL) {
return init(pin);
}
String getModemName() {
return "Quectel BG96";
}
void setBaud(unsigned long baud) {
sendAT(GF("+IPR="), baud);
}
bool testAT(unsigned long timeout = 10000L) {
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() {
sendAT(GF("&FZE0&W")); // Factory + Reset + Echo Off + Write
waitResponse();
sendAT(GF("+IPR=0")); // Auto-baud
waitResponse();
sendAT(GF("&W")); // Write configuration
return waitResponse() == 1;
}
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: For now
}
bool hasWifi() {
return false;
}
bool hasGPRS() {
return true;
}
/*
* Power functions
*/
bool restart() {
if (!testAT()) {
return false;
}
sendAT(GF("+CFUN=1,1"));
if (waitResponse(60000L, GF("POWERED DOWN")) != 1) {
return false;
}
delay(3000);
return init();
}
bool poweroff() {
sendAT(GF("+QPOWD=1"));
waitResponse(300); // returns OK first
return waitResponse(300, GF("POWERED DOWN")) == 1;
}
bool radioOff() {
sendAT(GF("+CFUN=0"));
if (waitResponse(10000L) != 1) {
return false;
}
delay(3000);
return true;
}
/*
* 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"), GF("NOT INSERTED"));
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("+CREG?"));
if (waitResponse(GF(GSM_NL "+CREG:")) != 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);
}
bool waitForNetwork(unsigned long timeout = 60000L) {
for (unsigned long start = millis(); millis() - start < timeout; ) {
if (isNetworkConnected()) {
return true;
}
delay(250);
}
return false;
}
/*
* GPRS functions
*/
bool gprsConnect(const char* apn, const char* user = NULL, const char* pwd = NULL) {
gprsDisconnect();
//Configure the TCPIP Context
sendAT(GF("+QICSGP=1,1,\""), apn, GF("\",\""), user, GF("\",\""), pwd, GF("\""));
if (waitResponse() != 1) {
return false;
}
//Activate GPRS/CSD Context
sendAT(GF("+QIACT=1"));
if (waitResponse(150000L) != 1) {
return false;
}
//Attach to Packet Domain service - is this necessary?
sendAT(GF("+CGATT=1"));
if (waitResponse(60000L) != 1) {
return false;
}
return true;
}
bool gprsDisconnect() {
sendAT(GF("+QIDEACT=1")); // Deactivate the bearer context
if (waitResponse(40000L) != 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;
return localIP() != IPAddress(0,0,0,0);
}
/*
* IP Address functions
*/
String getLocalIP() {
sendAT(GF("+QILOCIP"));
stream.readStringUntil('\n');
String res = stream.readStringUntil('\n');
if (waitResponse() != 1) {
return "";
}
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) TINY_GSM_ATTR_NOT_IMPLEMENTED;
bool callHangup() {
sendAT(GF("H"));
return waitResponse() == 1;
}
// 0-9,*,#,A,B,C,D
bool dtmfSend(char cmd, int duration_ms = 100) { // TODO: check
duration_ms = constrain(duration_ms, 100, 1000);
sendAT(GF("+VTD="), duration_ms / 100); // VTD accepts in 1/10 of a second
waitResponse();
sendAT(GF("+VTS="), cmd);
return waitResponse(10000L) == 1;
}
/*
* Messaging functions
*/
String sendUSSD(const String& code) TINY_GSM_ATTR_NOT_IMPLEMENTED;
bool sendSMS(const String& number, const String& text) {
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() TINY_GSM_ATTR_NOT_AVAILABLE;
/*
* 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;
// <PDPcontextID>(1-16), <connectID>(0-11),"TCP/UDP/TCP LISTENER/UDP SERVICE",
// "<IP_address>/<domain_name>",<remote_port>,<local_port>,<access_mode>(0-2 0=buffer)
sendAT(GF("+QIOPEN=1,"), mux, ',', GF("\"TCP"), GF("\",\""), host, GF("\","), port, GF(",0,0"));
rsp = waitResponse();
if (waitResponse(20000L, GF(GSM_NL "+QIOPEN:")) != 1) {
return false;
}
if (stream.readStringUntil(',').toInt() != mux) {
return false;
}
// Read status
rsp = stream.readStringUntil('\n').toInt();
return (0 == rsp);
}
int16_t modemSend(const void* buff, size_t len, uint8_t mux) {
sendAT(GF("+QISEND="), mux, ',', len);
if (waitResponse(GF(">")) != 1) {
return 0;
}
stream.write((uint8_t*)buff, len);
stream.flush();
if (waitResponse(GF(GSM_NL "SEND OK")) != 1) {
return 0;
}
// TODO: Wait for ACK? AT+QISEND=id,0
maintain(); // look for a very quick response from the remote
return len;
}
size_t modemRead(size_t size, uint8_t mux) {
sendAT(GF("+QIRD="), mux, ',', size);
if (waitResponse(GF("+QIRD:")) != 1) {
return 0;
}
size_t len = stream.readStringUntil('\n').toInt();
sockets[mux]->sock_available = len;
for (size_t i=0; i<len; i++) {
while (!stream.available()) { TINY_GSM_YIELD(); }
char c = stream.read();
sockets[mux]->rx.put(c);
}
waitResponse();
DBG("### READ:", len, "from", mux);
maintain(); // Listen for a close or other URC
return len;
}
size_t modemGetAvailable(uint8_t mux) {
sendAT(GF("+QIRD="), mux, GF(",0"));
size_t result = 0;
if (waitResponse(GF("+QIRD:")) == 1) {
streamSkipUntil(','); // Skip total received
streamSkipUntil(','); // Skip have read
result = stream.readStringUntil('\n').toInt();
if (result) DBG("### DATA AVAILABLE:", result, "on", mux);
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("+QISTATE=1,"), mux);
//+QISTATE: 0,"TCP","151.139.237.11",80,5087,4,1,0,0,"uart1"
if (waitResponse(GF("+QISTATE:")))
return false;
streamSkipUntil(','); // Skip mux
streamSkipUntil(','); // Skip socket type
streamSkipUntil(','); // Skip remote ip
streamSkipUntil(','); // Skip remote port
streamSkipUntil(','); // Skip local port
int res = stream.readStringUntil(',').toInt(); // socket state
waitResponse();
maintain(); // Listen for a close or other URC
// 0 Initial, 1 Opening, 2 Connected, 3 Listening, 4 Closing
return 2 == res;
}
public:
/*
Utilities
*/
template<typename T>
void streamWrite(T last) {
stream.print(last);
}
template<typename T, typename... Args>
void streamWrite(T head, Args... tail) {
stream.print(head);
streamWrite(tail...);
}
template<typename... Args>
void sendAT(Args... cmd) {
streamWrite("AT", cmd..., GSM_NL);
stream.flush();
TINY_GSM_YIELD();
//DBG("### AT:", cmd...);
}
bool streamSkipUntil(const char c, const unsigned long timeout = 1000L) {
unsigned long startMillis = millis();
while (millis() - startMillis < timeout) {
while (millis() - startMillis < timeout && !stream.available()) {
TINY_GSM_YIELD();
}
if (stream.read() == c) {
return true;
}
}
return false;
}
// 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 "+QIURC:"))) {
stream.readStringUntil('\"');
String urc = stream.readStringUntil('\"');
stream.readStringUntil(',');
if (urc == "recv") {
int mux = stream.readStringUntil('\n').toInt();
DBG("### URC RECV:", mux);
if (mux >= 0 && mux < TINY_GSM_MUX_COUNT && sockets[mux]) {
sockets[mux]->got_data = true;
}
} else if (urc == "closed") {
int mux = stream.readStringUntil('\n').toInt();
DBG("### URC CLOSE:", mux);
if (mux >= 0 && mux < TINY_GSM_MUX_COUNT && sockets[mux]) {
sockets[mux]->sock_connected = false;
}
} else {
stream.readStringUntil('\n');
}
data = "";
}
}
} 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