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717 lines
16 KiB
717 lines
16 KiB
/**
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* @file TinyGsmClientA6.h
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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 TinyGsmClientA6_h
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#define TinyGsmClientA6_h
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//#define TINY_GSM_DEBUG Serial
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#if !defined(TINY_GSM_RX_BUFFER)
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#define TINY_GSM_RX_BUFFER 256
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#endif
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#define TINY_GSM_MUX_COUNT 8
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#include <TinyGsmCommon.h>
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#define GSM_NL "\r\n"
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static const char GSM_OK[] TINY_GSM_PROGMEM = "OK" GSM_NL;
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static const char GSM_ERROR[] TINY_GSM_PROGMEM = "ERROR" GSM_NL;
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enum SimStatus {
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SIM_ERROR = 0,
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SIM_READY = 1,
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SIM_LOCKED = 2,
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};
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enum RegStatus {
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REG_UNREGISTERED = 0,
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REG_SEARCHING = 2,
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REG_DENIED = 3,
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REG_OK_HOME = 1,
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REG_OK_ROAMING = 5,
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REG_UNKNOWN = 4,
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};
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class TinyGsm
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{
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public:
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class GsmClient : public Client
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{
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friend class TinyGsm;
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typedef TinyGsmFifo<uint8_t, TINY_GSM_RX_BUFFER> RxFifo;
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public:
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GsmClient() {}
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GsmClient(TinyGsm& modem) {
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init(&modem);
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}
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bool init(TinyGsm* modem) {
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this->at = modem;
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this->mux = -1;
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sock_connected = false;
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return true;
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}
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public:
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virtual int connect(const char *host, uint16_t port) {
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TINY_GSM_YIELD();
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rx.clear();
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uint8_t newMux = -1;
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sock_connected = at->modemConnect(host, port, &newMux);
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if (sock_connected) {
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mux = newMux;
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at->sockets[mux] = this;
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}
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return sock_connected;
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}
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virtual int connect(IPAddress ip, uint16_t port) {
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String host; host.reserve(16);
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host += ip[0];
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host += ".";
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host += ip[1];
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host += ".";
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host += ip[2];
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host += ".";
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host += ip[3];
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return connect(host.c_str(), port);
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}
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virtual void stop() {
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TINY_GSM_YIELD();
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at->sendAT(GF("+CIPCLOSE="), mux);
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sock_connected = false;
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at->waitResponse();
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}
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virtual size_t write(const uint8_t *buf, size_t size) {
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TINY_GSM_YIELD();
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//at->maintain();
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return at->modemSend(buf, size, mux);
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}
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virtual size_t write(uint8_t c) {
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return write(&c, 1);
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}
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virtual int available() {
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TINY_GSM_YIELD();
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if (!rx.size() && sock_connected) {
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at->maintain();
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}
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return rx.size();
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}
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virtual int read(uint8_t *buf, size_t size) {
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TINY_GSM_YIELD();
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size_t cnt = 0;
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while (cnt < size) {
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size_t chunk = TinyGsmMin(size-cnt, rx.size());
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if (chunk > 0) {
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rx.get(buf, chunk);
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buf += chunk;
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cnt += chunk;
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continue;
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}
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// TODO: Read directly into user buffer?
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if (!rx.size()) {
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at->maintain();
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//break;
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}
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}
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return cnt;
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}
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virtual int read() {
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uint8_t c;
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if (read(&c, 1) == 1) {
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return c;
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}
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return -1;
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}
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virtual int peek() { return -1; } //TODO
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virtual void flush() { at->stream.flush(); }
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virtual uint8_t connected() {
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if (available()) {
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return true;
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}
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return sock_connected;
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}
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virtual operator bool() { return connected(); }
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/*
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* Extended API
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*/
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String remoteIP() TINY_GSM_ATTR_NOT_IMPLEMENTED;
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private:
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TinyGsm* at;
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uint8_t mux;
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bool sock_connected;
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RxFifo rx;
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};
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public:
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TinyGsm(Stream& stream)
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: stream(stream)
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{
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memset(sockets, 0, sizeof(sockets));
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}
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/*
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* Basic functions
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*/
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bool begin() {
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return init();
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}
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bool init() {
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if (!autoBaud()) {
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return false;
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}
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sendAT(GF("&FZE0")); // Factory + Reset + Echo Off
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if (waitResponse() != 1) {
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return false;
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}
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sendAT(GF("+CMEE=0"));
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waitResponse();
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getSimStatus();
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return true;
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}
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bool autoBaud(unsigned long timeout = 10000L) {
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for (unsigned long start = millis(); millis() - start < timeout; ) {
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sendAT(GF("E0"));
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if (waitResponse(200) == 1) {
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delay(100);
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return true;
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}
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delay(100);
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}
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return false;
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}
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void maintain() {
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//while (stream.available()) {
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waitResponse(10, NULL, NULL);
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//}
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}
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bool factoryDefault() {
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sendAT(GF("&FZE0&W")); // Factory + Reset + Echo Off + Write
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waitResponse();
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sendAT(GF("&W")); // Write configuration
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return waitResponse() == 1;
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}
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String getModemInfo() {
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sendAT(GF("I"));
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String res;
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if (waitResponse(1000L, res) != 1) {
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return "";
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}
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res.replace(GSM_NL "OK" GSM_NL, "");
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res.replace(GSM_NL, " ");
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res.trim();
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return res;
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}
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/*
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* Power functions
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*/
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bool restart() {
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if (!autoBaud()) {
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return false;
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}
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sendAT(GF("+RST=1"));
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delay(3000);
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return init();
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}
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bool poweroff() {
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sendAT(GF("+CPOF"));
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return waitResponse() == 1;
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}
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/*
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* SIM card functions
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*/
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bool simUnlock(const char *pin) {
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sendAT(GF("+CPIN=\""), pin, GF("\""));
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return waitResponse() == 1;
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}
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String getSimCCID() {
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sendAT(GF("+CCID"));
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if (waitResponse(GF(GSM_NL "+SCID: SIM Card ID:")) != 1) {
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return "";
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}
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String res = stream.readStringUntil('\n');
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waitResponse();
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res.trim();
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return res;
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}
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String getIMEI() {
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sendAT(GF("+GSN"));
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if (waitResponse(GF(GSM_NL)) != 1) {
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return "";
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}
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String res = stream.readStringUntil('\n');
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waitResponse();
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res.trim();
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return res;
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}
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SimStatus getSimStatus(unsigned long timeout = 10000L) {
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for (unsigned long start = millis(); millis() - start < timeout; ) {
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sendAT(GF("+CPIN?"));
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if (waitResponse(GF(GSM_NL "+CPIN:")) != 1) {
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delay(1000);
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continue;
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}
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int status = waitResponse(GF("READY"), GF("SIM PIN"), GF("SIM PUK"));
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waitResponse();
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switch (status) {
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case 2:
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case 3: return SIM_LOCKED;
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case 1: return SIM_READY;
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default: return SIM_ERROR;
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}
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}
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return SIM_ERROR;
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}
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RegStatus getRegistrationStatus() {
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sendAT(GF("+CREG?"));
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if (waitResponse(GF(GSM_NL "+CREG:")) != 1) {
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return REG_UNKNOWN;
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}
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streamSkipUntil(','); // Skip format (0)
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int status = stream.readStringUntil('\n').toInt();
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waitResponse();
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return (RegStatus)status;
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}
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String getOperator() {
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sendAT(GF("+COPS?"));
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if (waitResponse(GF(GSM_NL "+COPS:")) != 1) {
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return "";
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}
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streamSkipUntil('"'); // Skip mode and format
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String res = stream.readStringUntil('"');
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waitResponse();
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return res;
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}
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/*
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* Generic network functions
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*/
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int getSignalQuality() {
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sendAT(GF("+CSQ"));
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if (waitResponse(GF(GSM_NL "+CSQ:")) != 1) {
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return 99;
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}
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int res = stream.readStringUntil(',').toInt();
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waitResponse();
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return res;
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}
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bool waitForNetwork(unsigned long timeout = 60000L) {
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for (unsigned long start = millis(); millis() - start < timeout; ) {
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RegStatus s = getRegistrationStatus();
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if (s == REG_OK_HOME || s == REG_OK_ROAMING) {
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return true;
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}
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delay(1000);
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}
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return false;
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}
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/*
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* GPRS functions
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*/
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bool gprsConnect(const char* apn, const char* user, const char* pwd) {
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gprsDisconnect();
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sendAT(GF("+CGATT=1"));
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if (waitResponse(60000L) != 1)
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return false;
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// TODO: wait AT+CGATT?
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sendAT(GF("+CGDCONT=1,\"IP\",\""), apn, '"');
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waitResponse();
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if (!user) user = "";
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if (!pwd) pwd = "";
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sendAT(GF("+CSTT=\""), apn, GF("\",\""), user, GF("\",\""), pwd, GF("\""));
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if (waitResponse(60000L) != 1) {
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return false;
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}
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sendAT(GF("+CGACT=1,1"));
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waitResponse(60000L);
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sendAT(GF("+CIPMUX=1"));
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if (waitResponse() != 1) {
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return false;
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}
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return true;
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}
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bool gprsDisconnect() {
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sendAT(GF("+CIPSHUT"));
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return waitResponse(60000L) == 1;
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}
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String getLocalIP() {
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sendAT(GF("+CIFSR"));
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String res;
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if (waitResponse(10000L, res) != 1) {
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return "";
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}
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res.trim();
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return res;
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}
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IPAddress localIP() {
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IPAddress res;
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res.fromString(getLocalIP());
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return res;
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}
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/*
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* Phone Call functions
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*/
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bool setGsmBusy(bool busy = true) TINY_GSM_ATTR_NOT_AVAILABLE;
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bool callAnswer() {
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sendAT(GF("A"));
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return waitResponse() == 1;
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}
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// Returns true on pick-up, false on error/busy
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bool callNumber(const String& number) {
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sendAT(GF("D\""), number, "\";");
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if (waitResponse() != 1) {
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return false;
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}
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if (waitResponse(60000L, GF(GSM_NL "+CIEV: \"CALL\",1"), GF(GSM_NL "+CIEV: \"CALL\",0")) != 1) {
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return false;
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}
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int rsp = waitResponse(60000L, GF(GSM_NL "+CIEV: \"SOUNDER\",0"), GF(GSM_NL "+CIEV: \"CALL\",0"));
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int rsp2 = waitResponse(300L, GF(GSM_NL "BUSY" GSM_NL), GF(GSM_NL "NO ANSWER" GSM_NL));
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return rsp == 1 && rsp2 == 0;
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}
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//bool callRedial() {
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// sendAT(GF("DLST"));
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// return waitResponse() == 1;
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//}
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bool callHangup() {
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sendAT(GF("H"));
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return waitResponse() == 1;
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}
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/*
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* Messaging functions
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*/
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String sendUSSD(const String& code) {
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sendAT(GF("+CMGF=1"));
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waitResponse();
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sendAT(GF("+CSCS=\"HEX\""));
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waitResponse();
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sendAT(GF("+CUSD=1,\""), code, GF("\",15"));
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if (waitResponse(10000L) != 1) {
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return "";
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}
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if (waitResponse(GF(GSM_NL "+CUSD:")) != 1) {
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return "";
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}
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stream.readStringUntil('"');
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String hex = stream.readStringUntil('"');
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stream.readStringUntil(',');
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int dcs = stream.readStringUntil('\n').toInt();
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if (dcs == 15) {
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return decodeHex7bit(hex);
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} else if (dcs == 72) {
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return decodeHex16bit(hex);
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} else {
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return hex;
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}
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}
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bool sendSMS(const String& number, const String& text) {
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sendAT(GF("+CMGF=1"));
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waitResponse();
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sendAT(GF("+CMGS=\""), number, GF("\""));
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if (waitResponse(GF(">")) != 1) {
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return false;
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}
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stream.print(text);
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stream.write((char)0x1A);
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stream.flush();
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return waitResponse(60000L) == 1;
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}
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/*
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* Location functions
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*/
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String getGsmLocation() TINY_GSM_ATTR_NOT_AVAILABLE;
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/*
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* Battery functions
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*/
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uint16_t getBattVoltage() TINY_GSM_ATTR_NOT_AVAILABLE;
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int getBattPercent() {
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sendAT(GF("+CBC?"));
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if (waitResponse(GF(GSM_NL "+CBC:")) != 1) {
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return false;
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}
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stream.readStringUntil(',');
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int res = stream.readStringUntil('\n').toInt();
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waitResponse();
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return res;
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}
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private:
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bool modemConnect(const char* host, uint16_t port, uint8_t* mux) {
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sendAT(GF("+CIPSTART="), GF("\"TCP"), GF("\",\""), host, GF("\","), port);
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if (waitResponse(75000L, GF(GSM_NL "+CIPNUM:")) != 1) {
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return false;
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}
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int newMux = stream.readStringUntil('\n').toInt();
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int rsp = waitResponse(75000L,
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GF("CONNECT OK" GSM_NL),
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GF("CONNECT FAIL" GSM_NL),
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GF("ALREADY CONNECT" GSM_NL));
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if (waitResponse() != 1) {
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return false;
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}
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*mux = newMux;
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return (1 == rsp);
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}
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int modemSend(const void* buff, size_t len, uint8_t mux) {
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sendAT(GF("+CIPSEND="), mux, ',', len);
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if (waitResponse(2000L, GF(GSM_NL ">")) != 1) {
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return -1;
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}
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stream.write((uint8_t*)buff, len);
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stream.flush();
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if (waitResponse(10000L, GFP(GSM_OK), GF(GSM_NL "FAIL")) != 1) {
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return -1;
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}
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return len;
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}
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bool modemGetConnected(uint8_t mux) {
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sendAT(GF("+CIPSTATUS")); //TODO mux?
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int res = waitResponse(GF(",\"CONNECTED\""), GF(",\"CLOSED\""), GF(",\"CLOSING\""), GF(",\"INITIAL\""));
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waitResponse();
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return 1 == res;
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}
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static String decodeHex7bit(String &instr) {
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String result;
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byte reminder = 0;
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int bitstate = 7;
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for (unsigned i=0; i<instr.length(); i+=2) {
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char buf[4] = { 0, };
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buf[0] = instr[i];
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buf[1] = instr[i+1];
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byte b = strtol(buf, NULL, 16);
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byte bb = b << (7 - bitstate);
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char c = (bb + reminder) & 0x7F;
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result += c;
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reminder = b >> bitstate;
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bitstate--;
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if (bitstate == 0) {
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char c = reminder;
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result += c;
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reminder = 0;
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bitstate = 7;
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}
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}
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return result;
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}
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static String decodeHex16bit(String &instr) {
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String result;
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for (unsigned i=0; i<instr.length(); i+=4) {
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char buf[4] = { 0, };
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buf[0] = instr[i];
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buf[1] = instr[i+1];
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char b = strtol(buf, NULL, 16);
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if (b) { // If high byte is non-zero, we can't handle it ;(
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b = '?';
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} else {
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buf[0] = instr[i+2];
|
|
buf[1] = instr[i+3];
|
|
b = strtol(buf, NULL, 16);
|
|
}
|
|
result += b;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
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...);
|
|
}
|
|
|
|
bool streamSkipUntil(char c) { //TODO: timeout
|
|
while (true) {
|
|
while (!stream.available()) { TINY_GSM_YIELD(); }
|
|
if (stream.read() == c)
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
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("+CIPRCV:"))) {
|
|
int mux = stream.readStringUntil(',').toInt();
|
|
int len = stream.readStringUntil(',').toInt();
|
|
if (len > sockets[mux]->rx.free()) {
|
|
DBG("### Buffer overflow: ", len, "->", sockets[mux]->rx.free());
|
|
} else {
|
|
DBG("### Got: ", len, "->", sockets[mux]->rx.free());
|
|
}
|
|
while (len--) {
|
|
while (!stream.available()) { TINY_GSM_YIELD(); }
|
|
sockets[mux]->rx.put(stream.read());
|
|
}
|
|
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);
|
|
finish:
|
|
if (!index) {
|
|
data.trim();
|
|
if (data.length()) {
|
|
DBG("### Unhandled:", data);
|
|
}
|
|
data = "";
|
|
}
|
|
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);
|
|
}
|
|
|
|
private:
|
|
Stream& stream;
|
|
GsmClient* sockets[TINY_GSM_MUX_COUNT];
|
|
};
|
|
|
|
#endif
|