Added debug for AT handler

Author: Antti Kauppila

components/wifi/esp8266-driver/ESP8266/ESP8266.cpp

@@ -637,6 +637,8 @@ nsapi_error_t ESP8266::send(int id, const void *data, uint32_t amount)
 
     //We might receive "busy s/p..." and "OK" from modem, so we need to check that also
     _ok_received = false;
+    //TODO: remove this
+    _parser.debug_on(true);
     _parser.oob("OK", callback(this, &ESP8266::_oob_ok_received));
 
     if (!_parser.recv(">")) {
@@ -650,10 +652,12 @@ nsapi_error_t ESP8266::send(int id, const void *data, uint32_t amount)
         }
         tr_debug("send(): Didn't get \">\"");
         ret = NSAPI_ERROR_WOULD_BLOCK;
+        _parser.debug_on(false);
         goto END;
     }
     _ok_received = false;
     _parser.remove_oob("OK");
+    _parser.debug_on(false);
 
     if (_parser.write((char *)data, (int)amount) >= 0 && _parser.recv("SEND OK")) {
         ret = NSAPI_ERROR_OK;
@@ -1225,6 +1229,7 @@ void ESP8266::_oob_connection_status()
 
 void ESP8266::_oob_ok_received()
 {
+    tr_debug("_oob_ok_received called");
     _ok_received = true;
 }