bool EspDrv::wifiStartAP(char* ssid, const char* pwd, uint8_t channel, uint8_t enc)
{
LOGDEBUG(F("> wifiStartAP"));
// set AP mode, use CUR mode to avoid starting the AP at reboot
if (sendCmd(F("AT+CWMODE_CUR=2"))!=TAG_OK)
{
LOGWARN1(F("Failed to set AP mode"), ssid);
return false;
}
// TODO
// Escape character syntax is needed if "SSID" or "password" contains
// any special characters (',', '"' and '/')
// start access point
int ret = sendCmd(F("AT+CWSAP_CUR=\"%s\",\"%s\",%d,%d"), 10000, ssid, pwd, channel, enc);
if (ret!=TAG_OK)
{
LOGWARN1(F("Failed to start AP"), ssid);
return false;
}
// enable DHCP for AP mode
sendCmd(F("AT+CWDHCP_CUR=0,1"));
LOGINFO1(F("Access point started"), ssid);
return true;
}
void EspDrv::wifiDriverInit(Stream *espSerial)
{
LOGDEBUG(F("> wifiDriverInit"));
EspDrv::espSerial = espSerial;
if (sendCmd(F("AT")) != TAG_OK)
{
LOGERROR(F("Cannot initialize ESP module"));
delay(8000);
return;
}
reset();
// check firmware version
getFwVersion();
// prints a warning message if the firmware is not 1.X
if (fwVersion[0] != '1' or
fwVersion[1] != '.')
{
LOGWARN1(F("Warning: Unsupported firmware"), fwVersion);
delay(4000);
}
else
{
LOGINFO1(F("Initilization successful -"), fwVersion);
}
}
bool EspDrv::wifiConnect(char* ssid, const char *passphrase)
{
LOGDEBUG(F("> wifiConnect"));
// TODO
// Escape character syntax is needed if "SSID" or "password" contains
// any special characters (',', '"' and '/')
// connect to access point
int ret = sendCmd(F("AT+CWJAP_CUR=\"%s\",\"%s\""), 20000, ssid, passphrase);
if (ret==TAG_OK)
{
LOGINFO1(F("Connected to"), ssid);
return true;
}
LOGWARN1(F("Failed to connected to"), ssid);
// clean additional messages logged after the FAIL tag
delay(1000);
espEmptyBuf(false);
return false;
}
int WiFiEspUDP::read(unsigned char* buffer, size_t len)
{
int bytes = available();
if(bytes==-1)
return -1;
if (bytes!=len)
LOGWARN1(bytes, len);
uint16_t size = 0;
if (!EspDrv::getDataBuf(_sock, buffer, &size))
return -1;
return size;
}
static int firestep_readchar(int c) {
switch (c) {
case EOF:
inbuf[inbuflen] = 0;
inbuflen = 0;
LOGERROR1("firestep_readchar %s[EOF]", inbuf);
return 0;
case '\n':
inbuf[inbuflen] = 0;
if (inbuflen) { // discard blank lines
if (strncmp("{\"sr\"",inbuf, 5) == 0) {
LOGDEBUG2("firestep_readchar %s (%dB)", inbuf, inbuflen);
} else {
LOGINFO2("firestep_readchar %s (%dB)", inbuf, inbuflen);
}
} else {
inbufEmptyLine++;
if (inbufEmptyLine % 1000 == 0) {
LOGWARN1("firestep_readchar skipped %ld blank lines", inbufEmptyLine);
}
}
inbuflen = 0;
break;
case '\r':
// skip
break;
case 'a': case 'A':
case 'b': case 'B':
case 'c': case 'C':
case 'd': case 'D':
case 'e': case 'E':
case 'f': case 'F':
case 'g': case 'G':
case 'h': case 'H':
case 'i': case 'I':
case 'j': case 'J':
case 'k': case 'K':
case 'l': case 'L':
case 'm': case 'M':
case 'n': case 'N':
case 'o': case 'O':
case 'p': case 'P':
case 'q': case 'Q':
case 'r': case 'R':
case 's': case 'S':
case 't': case 'T':
case 'u': case 'U':
case 'v': case 'V':
case 'w': case 'W':
case 'x': case 'X':
case 'y': case 'Y':
case 'z': case 'Z':
case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9':
case '.': case '-': case '_': case '/':
case '{': case '}':
case '(': case ')':
case '[': case ']':
case '<': case '>':
case '"': case '\'': case ':': case ',':
case ' ': case '\t':
if (c == '{') {
if (jsonDepth++ <= 0) {
jsonLen = 0;
}
ADD_JSON(c);
} else if (c == '}') {
ADD_JSON(c);
if (--jsonDepth < 0) {
LOGWARN1("Invalid JSON %s", jsonBuf);
return 0;
}
} else {
ADD_JSON(c);
}
if (inbuflen >= INBUFMAX) {
inbuf[INBUFMAX] = 0;
LOGERROR1("firestep_readchar overflow %s", inbuf);
break;
} else {
inbuf[inbuflen] = c;
inbuflen++;
LOGTRACE2("firestep_readchar %x %c", (int) c, (int) c);
}
break;
default:
// discard unexpected character (probably wrong baud rate)
LOGTRACE2("firestep_readchar %x ?", (int) c, (int) c);
break;
}
return 1;
}
