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719 lines
16 KiB
719 lines
16 KiB
/**
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* @file TinyGsmClientU201.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 TinyGsmClientU201_h
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#define TinyGsmClientU201_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 64
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#endif
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#define TINY_GSM_MUX_COUNT 5
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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 TinyGsmU201
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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 TinyGsmU201;
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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(TinyGsmU201& modem, uint8_t mux = 1) {
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init(&modem, mux);
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}
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bool init(TinyGsmU201* modem, uint8_t mux = 1) {
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this->at = modem;
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this->mux = mux;
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sock_available = 0;
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sock_connected = false;
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got_data = 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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sock_connected = at->modemConnect(host, port, &mux);
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at->sockets[mux] = this;
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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("+USOCL="), 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) { // TODO
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at->maintain();
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}
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return rx.size() + sock_available;
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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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at->maintain();
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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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at->maintain();
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if (sock_available > 0) {
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at->modemRead(rx.free(), mux);
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} else {
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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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TinyGsmU201* at;
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uint8_t mux;
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uint16_t sock_available;
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bool sock_connected;
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bool got_data;
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RxFifo rx;
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};
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class GsmClientSecure : public GsmClient
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{
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public:
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GsmClientSecure() {}
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GsmClientSecure(TinyGsmU201& modem, uint8_t mux = 1)
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: GsmClient(modem, mux)
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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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sock_connected = at->modemConnect(host, port, &mux, true);
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at->sockets[mux] = this;
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return sock_connected;
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}
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};
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public:
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#ifdef GSM_DEFAULT_STREAM
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TinyGsmU201(Stream& stream = GSM_DEFAULT_STREAM)
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#else
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TinyGsmU201(Stream& stream)
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#endif
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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(const char* pin = NULL) {
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return init(pin);
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}
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bool init(const char* pin = NULL) {
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if (!autoBaud()) {
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return false;
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}
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sendAT(GF("E0")); // Echo Off
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if (waitResponse() != 1) {
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return false;
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}
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int ret = getSimStatus();
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if (ret != SIM_READY && pin != NULL && strlen(pin) > 0) {
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simUnlock(pin);
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}
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return (getSimStatus() == SIM_READY);
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}
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void setBaud(unsigned long baud) {
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sendAT(GF("+IPR="), baud);
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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(""));
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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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for (int mux = 0; mux < TINY_GSM_MUX_COUNT; mux++) {
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GsmClient* sock = sockets[mux];
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if (sock && sock->got_data) {
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sock->got_data = false;
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sock->sock_available = modemGetAvailable(mux);
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}
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}
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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("+UFACTORY=0,1")); // Factory + Reset + Echo Off
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waitResponse();
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sendAT(GF("+CFUN=16")); // Auto-baud
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return waitResponse() == 1;
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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("+CFUN=16"));
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if (waitResponse(10000L) != 1) {
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return false;
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}
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delay(3000);
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return init();
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}
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bool poweroff() TINY_GSM_ATTR_NOT_IMPLEMENTED;
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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 "+CCID:")) != 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("+CGSN"));
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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"), GF("NOT INSERTED"));
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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("+CGREG?"));
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if (waitResponse(GF(GSM_NL "+CGREG:")) != 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 isNetworkConnected() {
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RegStatus s = getRegistrationStatus();
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return (s == REG_OK_HOME || s == REG_OK_ROAMING);
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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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if (isNetworkConnected()) {
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return true;
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}
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delay(500);
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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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waitResponse(5000L);
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sendAT(GF("+UPSD=0,1,\""), apn, '"');
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waitResponse();
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if (user && strlen(user) > 0) {
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sendAT(GF("+UPSD=0,2,\""), user, '"');
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waitResponse();
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}
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if (pwd && strlen(pwd) > 0) {
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sendAT(GF("+UPSD=0,3,\""), pwd, '"');
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waitResponse();
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}
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sendAT(GF("+UPSD=0,7,\"0.0.0.0\"")); // Dynamic IP
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waitResponse();
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sendAT(GF("+UPSDA=0,3"));
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waitResponse(6000L);
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// Open a GPRS context
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sendAT(GF("+UPSND=0,8"));
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if (waitResponse(GF(",8,1")) != 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("+UPSDA=0,4"));
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if (waitResponse(60000L) != 1)
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return false;
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sendAT(GF("+CGATT=0"));
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if (waitResponse(60000L) != 1)
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return false;
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return true;
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}
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bool isGprsConnected() {
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sendAT(GF("+CGATT?"));
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if (waitResponse(GF(GSM_NL "+CGATT:")) != 1) {
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return false;
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}
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int res = stream.readStringUntil('\n').toInt();
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waitResponse();
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if (res != 1)
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return false;
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sendAT(GF("+CIFSR;E0")); // Another option is to use AT+CGPADDR=1
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if (waitResponse() != 1)
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return false;
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return true;
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}
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String getLocalIP() {
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sendAT(GF("+CIFSR;E0"));
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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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return TinyGsmIpFromString(getLocalIP());
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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) {
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sendAT(GF("+GSMBUSY="), busy ? 1 : 0);
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return waitResponse() == 1;
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}
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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) TINY_GSM_ATTR_NOT_IMPLEMENTED;
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//bool callRedial() {
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// sendAT(GF("DL"));
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// return waitResponse() == 1;
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//}
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bool callHangup() TINY_GSM_ATTR_NOT_IMPLEMENTED;
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/*
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* Messaging functions
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*/
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String sendUSSD(const String& code) TINY_GSM_ATTR_NOT_IMPLEMENTED;
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bool sendSMS(const String& number, const String& text) TINY_GSM_ATTR_NOT_IMPLEMENTED;
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bool sendSMS_UTF16(const String& number, const void* text, size_t len) TINY_GSM_ATTR_NOT_IMPLEMENTED;
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/*
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* Location functions
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*/
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String getGsmLocation() {
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sendAT(GF("+ULOC=2,3,0,120,1"));
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if (waitResponse(GF(GSM_NL "+UULOC:")) != 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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/*
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* Battery functions
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*/
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// Use: float vBatt = modem.getBattVoltage() / 1000.0;
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uint16_t getBattVoltage() {
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sendAT(GF("+CIND"));
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if (waitResponse(GF(GSM_NL "+CIND:")) != 1) {
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return 0;
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}
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uint16_t res = stream.readStringUntil(',').toInt();
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waitResponse();
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return res;
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}
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int getBattPercent() TINY_GSM_ATTR_NOT_IMPLEMENTED;
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protected:
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bool modemConnect(const char* host, uint16_t port, uint8_t* mux, bool ssl = false) {
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sendAT(GF("+USOCR=6"));
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if (waitResponse(GF(GSM_NL "+USOCR:")) != 1) {
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return false;
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}
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*mux = stream.readStringUntil('\n').toInt();
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waitResponse();
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if (ssl) {
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sendAT(GF("+USOSEC="), *mux, ",1");
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waitResponse();
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}
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sendAT(GF("+USOCO="), *mux, ",\"", host, "\",", port);
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int rsp = waitResponse(75000L);
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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("+USOWR="), mux, ',', len);
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if (waitResponse(GF("@")) != 1) {
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return -1;
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}
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// 50ms delay, see AT manual section 25.10.4
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delay(50);
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stream.write((uint8_t*)buff, len);
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stream.flush();
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if (waitResponse(GF(GSM_NL "+USOWR:")) != 1) {
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return -1;
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}
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streamSkipUntil(','); // Skip mux
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return stream.readStringUntil('\n').toInt();
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}
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|
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size_t modemRead(size_t size, uint8_t mux) {
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sendAT(GF("+USORD="), mux, ',', size);
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if (waitResponse(GF(GSM_NL "+USORD:")) != 1) {
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return 0;
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}
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streamSkipUntil(','); // Skip mux
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size_t len = stream.readStringUntil(',').toInt();
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streamSkipUntil('\"');
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for (size_t i=0; i<len; i++) {
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while (!stream.available()) { TINY_GSM_YIELD(); }
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char c = stream.read();
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sockets[mux]->rx.put(c);
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}
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streamSkipUntil('\"');
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waitResponse();
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return len;
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}
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|
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size_t modemGetAvailable(uint8_t mux) {
|
|
sendAT(GF("+USORD="), mux, ',', 0);
|
|
size_t result = 0;
|
|
if (waitResponse(GF(GSM_NL "+USORD:")) == 1) {
|
|
streamSkipUntil(','); // Skip mux
|
|
result = stream.readStringUntil('\n').toInt();
|
|
waitResponse();
|
|
}
|
|
if (!result) {
|
|
sockets[mux]->sock_connected = modemGetConnected(mux);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
bool modemGetConnected(uint8_t mux) {
|
|
sendAT(GF("+USOCTL="), mux, ",10");
|
|
if (waitResponse(GF(GSM_NL "+USOCTL:")) != 1)
|
|
return false;
|
|
|
|
streamSkipUntil(','); // Skip mux
|
|
streamSkipUntil(','); // Skip type
|
|
int result = stream.readStringUntil('\n').toInt();
|
|
|
|
return result != 0;
|
|
}
|
|
|
|
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;
|
|
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 "+UUSORD:"))) {
|
|
int mux = stream.readStringUntil(',').toInt();
|
|
if (mux >= 0 && mux < TINY_GSM_MUX_COUNT && sockets[mux]) {
|
|
sockets[mux]->got_data = true;
|
|
}
|
|
data = "";
|
|
} else if (data.endsWith(GF(GSM_NL "+UUSOCL:"))) {
|
|
int mux = stream.readStringUntil('\n').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 = "";
|
|
}
|
|
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);
|
|
}
|
|
|
|
protected:
|
|
Stream& stream;
|
|
GsmClient* sockets[TINY_GSM_MUX_COUNT];
|
|
};
|
|
|
|
#endif
|