Diff: ESP8266InterfaceTiny/ESP8266/ESP8266.cpp

Revision:

1:4a634c06c5dc

Parent:

0:23e533c4b1ec

Child:

2:9afb66979712

--- a/ESP8266InterfaceTiny/ESP8266/ESP8266.cpp	Tue Dec 15 09:56:32 2015 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,523 +0,0 @@
-/* Copyright (C) 2012 mbed.org, MIT License
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
- * and associated documentation files (the "Software"), to deal in the Software without restriction,
- * including without limitation the rights to use, copy, modify, merge, publish, distribute,
- * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all copies or
- * substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
- * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include "mbed.h"
-#include "ESP8266.h"
-#include "Endpoint.h"
-#include "SoftSerialSendOnry.h"
-
-extern SoftSerialSendOnry pc;
-
-//#include <string>
-//#include <algorithm>
-
-//Debug is disabled by default
-#if 0
-#define DBG(x, ...)  pc.printf("[ESP8266 : DBG]"x" \t[%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__); 
-#define WARN(x, ...) pc.printf("[ESP8266 : WARN]"x" \t[%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__); 
-#define ERR(x, ...)  pc.printf("[ESP8266 : ERR]"x" \t[%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__); 
-#else
-#define DBG(x, ...) //wait_us(10);
-#define WARN(x, ...) //wait_us(10);
-#define ERR(x, ...)
-#endif
-
-#if 0
-#define INFO(x, ...) printf("[ESP8266 : INFO]"x" \t[%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__); 
-#else
-#define INFO(x, ...)
-#endif
-
-#define ESP_MAX_TRY_JOIN 3
-#define ESP_MAXID 4 // the largest possible ID Value (max num of sockets possible)
-
-ESP8266 * ESP8266::inst;
-char* ip = NULL;
-
-ESP8266::ESP8266(PinName tx, PinName rx, PinName reset, const char *ssid, const char *phrase, uint32_t baud) :
-    wifi(tx, rx), reset_pin(reset), buf_ESP8266(ESP_MBUFFE_MAX)
-{
-    INFO("Initializing ESP8266 object");
-    memset(&state, 0, sizeof(state));
-
-
-    strcpy(this->ssid, ssid);
-    strcpy(this->phrase, phrase);
-    inst = this;
-    attach_rx(false);
-
-    wifi.baud(baud); // initial baud rate of the ESP8266
-
-    state.associated = false;
-    state.cmdMode = false;
-}
-
-bool ESP8266::join()
-{
-    char cmd[100];
-    sendCommand( "AT+CWMODE=1", "change", NULL, 1000);
-    //string cmd="AT+CWJAP=\""+(string)this->ssid+"\",\""+(string)this->phrase+"\"";
-    sprintf(cmd,"AT+CWJAP=\"%s\",\"%s\"",this->ssid,this->phrase);
-    if( sendCommand( cmd, "OK", NULL, 10000) ) {
-        // successfully joined the network
-        state.associated = true;
-        INFO("ssid: %s, phrase: %s", this->ssid, this->phrase);
-        return true;
-    }
-    return false;
-}
-
-bool ESP8266::connect()
-{
-    sendCommand("AT+CWDHCP=1,1","OK",NULL,1000); // DHCP Enabled in Station Mode
-    return ESP8266::join();
-}
-
-bool ESP8266::is_connected()
-{
-    return true;
-}
-
-bool ESP8266::start(bool type,char* ip, int port, int id)
-{
-    char cmd[256];
-    // Error Check
-    if(id > ESP_MAXID) {
-        ERR("startUDPMulti: max id is: %d, id given is %d",ESP_MAXID,id);
-        return false;
-    }
-    // Single Connection Mode
-    if(id < 0) {
-        DBG("Start Single Connection Mode");
-        //char portstr[5];
-        bool check [3] = {0};
-        //sprintf(portstr, "%d", port);
-        switch(type) {
-            case ESP_UDP_TYPE : //UDP
-                sprintf(cmd,"AT+CIPSTART=\"UDP\",\"%s\",%d",ip,port);
-                check[0] = sendCommand(cmd, "OK", NULL, 10000);
-                //check[0] = sendCommand(( "AT+CIPSTART=\"UDP\",\"" + (string) ip + "\"," + (string) portstr ).c_str(), "OK", NULL, 10000);
-               break;
-            case ESP_TCP_TYPE : //TCP
-                sprintf(cmd,"AT+CIPSTART=\"TCP\",\"%s\",%d",ip,port);
-                check[0] = sendCommand(cmd, "OK", NULL, 10000);
-                //check[0] = sendCommand(( "AT+CIPSTART=\"TCP\",\"" + (string) ip + "\"," + (string) portstr ).c_str(), "OK", NULL, 10000);
-                break;
-            default:
-                ERR("Default hit for starting connection, this shouldnt be possible!!");
-                break;
-        }
-        check[1] = sendCommand("AT+CIPMODE=1", "OK", NULL, 1000);// go into transparent mode
-        check[2] = sendCommand("AT+CIPSEND", ">", NULL, 1000);// go into transparent mode
-        // check that all commands were sucessful
-        if(check[0] and check[1] and check[2]) {
-            state.cmdMode = false;
-            return true;
-        } else {
-            ERR("startUDPTransparent Failed for ip:%s, port:%d",ip,port);
-            return false;
-        }
-    }
-    // Multi Connection Mode
-    else {
-        //TODO: impliment Multi Connection Mode
-        ERR("Not currently Supported!");
-        return false;
-    }
-}
-
-bool ESP8266::startUDP(char* ip, int port, int id, int length)
-{
-    char cmd[256];
-    char portstr[5];
-    char idstr[1];
-    char lenstr[2];
-    
-    sprintf(portstr, "%d", port);
-    sprintf(idstr, "%d", id);
-    sprintf(lenstr, "%d", length);
-    
-    sendCommand("AT+CIPMUX=1", "OK", NULL, 1000);
-    sprintf(cmd,"AT+CIPSTART=%d,\"UDP\",\"%s\",%d,1112,0",id,ip,port);
-    sendCommand(cmd, "OK", NULL, 10000);
-    //sendCommand(( "AT+CIPSTART=" + string(idstr) + ",\"UDP\",\"" + (string) ip + "\"," + (string) portstr + ",1112,0").c_str(), "OK", NULL, 10000);
-    sprintf(cmd,"AT+CIPSEND=%d,%d",id,length);
-    sendCommand(cmd, ">", NULL, 1000);// go into transparent mode
-    //sendCommand(("AT+CIPSEND=" + (string)idstr + "," +  (string)lenstr).c_str(), ">", NULL, 1000);// go into transparent mode
-    DBG("Data Mode\r\n");
-    state.cmdMode = false;
-
-    return true;
-}
-
-bool ESP8266::startTCPServer(int port)
-{
-    char cmd[100];
-    bool command_results[3];
-    command_results[0]=sendCommand("AT+CWMODE=3", "OK", NULL, 1000);
-    command_results[1]=sendCommand("AT+CIPMUX=1", "OK", NULL, 1000);
-    if(port == 333){
-        command_results[2]=sendCommand("AT+CIPSERVER=1", "OK", NULL, 1000);
-    }
-    else{
-        sprintf(cmd,"AT+CIPSERVER=1,%d",port);
-        command_results[2]=sendCommand(cmd, "OK", NULL, 1000);
-    }
-    //sendCommand("AT+CIFSR", "OK", NULL, 1000);
-    DBG("Data Mode\r\n");
-    state.cmdMode = false;
-    if (command_results[0] and command_results[1] and command_results[2]){
-        return true;
-    }
-    else{
-        return false;
-    }
-}
-
-bool ESP8266::close()
-{
-    wait(0.1f);
-    send("+++",3);
-    wait(1.0f);
-    state.cmdMode = true;
-    sendCommand("AT+CIPCLOSE","OK", NULL, 10000);
-    return true;
-}
-
-bool ESP8266::disconnect()
-{
-    // if already disconnected, return
-    if (!state.associated)
-        return true;
-    // send command to quit AP
-    sendCommand("AT+CWQAP", "OK", NULL, 10000);
-    state.associated = false;
-    return true;
-}
-
-int ESP8266::strfind(const char *str,const char *chkstr,int pos)
-{
-    if( (strlen(str)-pos) < strlen(chkstr) )    return(-1);
-    
-
-    for(int i=pos;i<strlen(str);i++)
-    {
-        if(memcmp(chkstr,&str[i],strlen(chkstr))==0)
-        {
-            return(i);
-        }
-    }
-    return(-1);
-}
-
-char* ESP8266::substr(const char *str , char *outstr , int pos1 , int pos2 )
-{
-    int size = pos2 - pos1;
-    
-    memcpy(outstr , &str[pos1] , size );
-    outstr[size] = '\0';
-    
-    return(outstr);
-}
-
-int ESP8266::strcount(const char *str , char countstr )
-{
-    int ret = 0;
-    
-    for(int i = 0 ; i < strlen(str) ; i++)
-    {
-        if( str[i] == countstr )
-        {
-            ret++;
-        }
-        
-    }
-    
-    return(ret);
-}
-
-/*
-    Assuming Returned data looks like this:
-    +CIFSR:STAIP,"192.168.11.2"
-    +CIFSR:STAMAC,"18:fe:34:9f:3a:f5"
-    grabbing IP from first set of quotation marks
-*/
-char* ESP8266::getIPAddress()
-{
-    char result[30] = {0};
-    char tmp[30] = {0};
-    int check = 0;
-    check = sendCommand("AT+CIFSR", NULL, result, 1000);
-    //pc.printf("\r\nReceivedInfo for IP Command is: %s\r\n",result);
-    ip = ipString;
-    if(check) {
-        // Success
-        uint8_t pos1 = 0, pos2 = 0;
-        //uint8_t pos3 = 0, pos4 = 0;
-        pos1 = strfind(result,"+CIFSR:STAIP",0);
-        //pos1 = resultString.find("+CIFSR:STAIP");
-        pos1 = strfind(result,"\"",pos1);
-        //pos1 = resultString.find('"',pos1);
-        pos2 = strfind(result,"\"",pos1+1);
-        //pos2 = resultString.find('"',pos1+1);
-        //pos3 = resultString.find('"',pos2+1); //would find mac address
-        //pos4 = resultString.find('"',pos3+1);
-        strncpy(ipString,substr(result,tmp,pos1,pos2),sizeof(ipString));
-        INFO("IP: %s",ipString);
-        ip = ipString;
-
-    } else {
-        // Failure
-        ERR("getIPAddress() failed");
-        ip = NULL;
-    }
-    return ip;
-}
-
-bool ESP8266::gethostbyname(const char * host, char * ip)
-{
-    int nb_digits = 0;
-    char tmp[100];
-    
-    strcpy(ip,host);
-    
-    return true;
-#if 0
-    // no dns needed
-    int pos = strfind(host,".",0);
-    if (pos != -1) {
-        nb_digits = atoi(substr(host,tmp,0,pos));
-    }
-    //printf("substrL %s\r\n", sub.c_str());
-    if (strcount(host,'.') == 3 && nb_digits > 0) {
-        strcpy(ip, host);
-        return true;
-    } else {
-        // dns needed, not currently available
-        ERR("gethostbyname(): DNS Not currently available, only use IP Addresses!");
-        return false;
-    }
-#endif
-}
-
-void ESP8266::reset()
-{
-    reset_pin = 0;
-    wait_us(20);
-    reset_pin = 1;
-    //wait(1);
-    //reset_pin = !reset_pin
-    //send("+++",3);
-    wait(1);
-    state.cmdMode = true;
-    sendCommand("AT", "OK", NULL, 1000);
-    sendCommand("AT+RST", "ready", NULL, 10000);
-    state.associated = false;
-
-}
-
-bool ESP8266::reboot()
-{
-    reset();
-    return true;
-}
-
-void ESP8266::handler_rx(void)
-{
-    //read characters
-    char c;
-    while (wifi.readable()) {
-        c=wifi.getc();
-        buf_ESP8266.queue(c);
-        //if (state.cmdMode) pc.printf("%c",c); //debug echo, needs fast serial console to prevent UART overruns
-    }
-}
-
-void ESP8266::attach_rx(bool callback)
-{
-    if (!callback) {
-        wifi.attach(NULL);
-    }
-    else {
-        wifi.attach(this, &ESP8266::handler_rx);
-    }
-}
-
-int ESP8266::readable()
-{
-    return buf_ESP8266.available();
-}
-
-int ESP8266::writeable()
-{
-    return wifi.writeable();
-}
-
-char ESP8266::getc()
-{
-    char c=0;
-    while (!buf_ESP8266.available());
-    buf_ESP8266.dequeue(&c);
-    return c;
-}
-
-int ESP8266::putc(char c)
-{
-    while (!wifi.writeable() || wifi.readable()); //wait for echoed command characters to be read first
-    return wifi.putc(c);
-}
-
-void ESP8266::flush()
-{
-    buf_ESP8266.flush();
-}
-
-int ESP8266::send(const char * buf, int len)
-{
-    //TODO: need to add handler for data > 2048B, this is the max packet size of the ESP8266.
-    if(len >= 2048){
-        WARN("send buffer >= 2048B, need to chunk this up to be less.");    
-    }
-    const char* bufptr=buf;
-    for(int i=0; i<len; i++) {
-        putc((int)*bufptr++);
-    }
-    return len;
-}
-
-bool ESP8266::sendCommand(const char * cmd, const char * ACK, char * res, int timeout)
-{
-    char read;
-    char checking[512] = "";
-    int checking_size = 0;
-    int fond = -1;
-    Timer tmr;
-    int result = 0;
-
-    DBG("sendCmd:\t %s",cmd);
-
-    attach_rx(true);
-
-    //We flush the buffer
-    while (readable())
-        getc();
-
-    if (!ACK || !strcmp(ACK, "NO")) {
-        for (int i = 0; i < strlen(cmd); i++) {
-            result = (putc(cmd[i]) == cmd[i]) ? result + 1 : result;
-            wait(0.005f); // prevents stuck recieve ready (?) need to let echoed character get read first
-        }
-        putc(13); //CR
-        wait(0.005f); // wait for echo
-        putc(10); //LF
-
-    } else {
-        //We flush the buffer
-        while (readable())
-            getc();
-
-        tmr.start();
-        for (int i = 0; i < strlen(cmd); i++) {
-            result = (putc(cmd[i]) == cmd[i]) ? result + 1 : result;
-            wait(.005); // wait for echo
-        }
-        putc(13); //CR
-        wait(0.005f); // wait for echo
-        putc(10); //LF
-
-        while (1) {
-            if (tmr.read_ms() > timeout) {
-                //We flush the buffer
-                while (readable())
-                    getc();
-
-                DBG("check:\t %s", checking);
-
-                attach_rx(true);
-                return -1;
-            } else if (readable()) {
-                read = getc();
-                //pc.printf("%c",read); //debug echo
-                if ( read != '\r' && read != '\n') {
-                    checking[checking_size] = read;
-                    checking_size++;
-                    checking[checking_size] = '\0';
-                    fond = strfind(checking,ACK,0);
-                    if (fond != -1) {
-                        wait(0.01f);
-
-                        //We flush the buffer
-                        while (readable())
-                            read = getc();
-                        //printf("%c",read); //debug echo
-                        break;
-                    }
-                }
-            }
-        }
-        DBG("check: %s", checking);
-
-        attach_rx(true);
-        return result;
-    }
-
-    //the user wants the result from the command (ACK == NULL, res != NULL)
-    if (res != NULL) {
-        int i = 0;
-        Timer timeout;
-        timeout.start();
-        tmr.reset();
-        while (1) {
-            if (timeout.read() > 2) {
-                if (i == 0) {
-                    res = NULL;
-                    break;
-                }
-                res[i] = '\0';
-                DBG("user str 1: %s", res);
-
-                break;
-            } else {
-                if (tmr.read_ms() > 300) {
-                    res[i] = '\0';
-                    DBG("user str: %s", res);
-
-                    break;
-                }
-                if (readable()) {
-                    tmr.start();
-                    read = getc();
-
-                    // we drop \r and \n
-                    if ( read != '\r' && read != '\n') {
-                        res[i++] = read;
-                    }
-                }
-            }
-        }
-        DBG("user str: %s", res);
-    }
-
-    //We flush the buffer
-    while (readable())
-        getc();
-
-    attach_rx(true);
-    DBG("result: %d", result)
-    return result;
-}