/**
* ESP8266 WiFi Event handler.
* This function is called by the ESP8266
* environment when significant events happen related to the WiFi environment.
* The event handler is registered with a call to wifi_set_event_handler_cb()
* that is provided by the ESP8266 SDK.
*/
static void wifiEventHandler(System_Event_t *evt) {
switch(evt->event) {
// We have connected to an access point.
case EVENT_STAMODE_CONNECTED:
os_printf("Wifi connected to ssid %s, ch %d\n", evt->event_info.connected.ssid,
evt->event_info.connected.channel);
sendWifiEvent(evt->event, jsvNewNull());
break;
// We have disconnected or been disconnected from an access point.
case EVENT_STAMODE_DISCONNECTED:
os_printf("Wifi disconnected from ssid %s, reason %s (%d)\n",
evt->event_info.disconnected.ssid, wifiGetReason(), evt->event_info.disconnected.reason);
JsVar *details = jspNewObject(NULL, "EventDetails");
jsvUnLock(jsvObjectSetChild(details, "reason", jsvNewFromInteger(evt->event_info.disconnected.reason)));
char ssid[33];
memcpy(ssid, evt->event_info.disconnected.ssid, evt->event_info.disconnected.ssid_len);
ssid[ evt->event_info.disconnected.ssid_len] = '\0';
sendWifiEvent(evt->event, details);
break;
// The authentication information at the access point has changed.
case EVENT_STAMODE_AUTHMODE_CHANGE:
os_printf("Wifi auth mode: %d -> %d\n",
evt->event_info.auth_change.old_mode, evt->event_info.auth_change.new_mode);
sendWifiEvent(evt->event, jsvNewNull());
break;
// We have been allocated an IP address.
case EVENT_STAMODE_GOT_IP:
os_printf("Wifi got ip:" IPSTR ",mask:" IPSTR ",gw:" IPSTR "\n",
IP2STR(&evt->event_info.got_ip.ip), IP2STR(&evt->event_info.got_ip.mask),
IP2STR(&evt->event_info.got_ip.gw));
sendWifiEvent(evt->event, jsvNewNull());
break;
case EVENT_STAMODE_DHCP_TIMEOUT:
os_printf("Wifi DHCP timeout");
sendWifiEvent(evt->event, jsvNewNull());
break;
case EVENT_SOFTAPMODE_STACONNECTED:
os_printf("Wifi AP: station " MACSTR " joined, AID = %d\n",
MAC2STR(evt->event_info.sta_connected.mac), evt->event_info.sta_connected.aid);
sendWifiEvent(evt->event, jsvNewNull());
break;
case EVENT_SOFTAPMODE_STADISCONNECTED:
os_printf("Wifi AP: station " MACSTR " left, AID = %d\n",
MAC2STR(evt->event_info.sta_disconnected.mac), evt->event_info.sta_disconnected.aid);
sendWifiEvent(evt->event, jsvNewNull());
break;
case EVENT_SOFTAPMODE_PROBEREQRECVED:
os_printf("Wifi AP: probe request from station " MACSTR ", rssi = %d\n",
MAC2STR(evt->event_info.ap_probereqrecved.mac), evt->event_info.ap_probereqrecved.rssi);
sendWifiEvent(evt->event, jsvNewNull());
break;
default:
os_printf("Wifi: unexpected event %d\n", evt->event);
sendWifiEvent(evt->event, jsvNewNull());
break;
}
}
int ICACHE_FLASH_ATTR cgiWiFiConnStatus(HttpdConnData *connData) {
char buff[1024];
int len;
if (connData->conn==NULL) return HTTPD_CGI_DONE; // Connection aborted. Clean up.
jsonHeader(connData, 200);
len = os_sprintf(buff, "{");
len += printWifiInfo(buff+len);
len += os_sprintf(buff+len, ", ");
if (wifiReason != 0) {
len += os_sprintf(buff+len, "\"reason\": \"%s\", ", wifiGetReason());
}
#if 0
// commented out 'cause often the client that requested the change can't get a request in to
// find out that it succeeded. Better to just wait the std 15 seconds...
int st=wifi_station_get_connect_status();
if (st == STATION_GOT_IP) {
if (wifi_get_opmode() != 1) {
// Reset into AP-only mode sooner.
os_timer_disarm(&resetTimer);
os_timer_setfn(&resetTimer, resetTimerCb, NULL);
os_timer_arm(&resetTimer, 1000, 0);
}
}
#endif
len += os_sprintf(buff+len, "\"x\":0}\n");
//DBG(" -> %s\n", buff);
httpdSend(connData, buff, len);
return HTTPD_CGI_DONE;
}
// handler for wifi status change callback coming in from espressif library
static void ICACHE_FLASH_ATTR wifiHandleEventCb(System_Event_t *evt) {
switch (evt->event) {
case EVENT_STAMODE_CONNECTED:
wifiState = wifiIsConnected;
wifiReason = 0;
DBG("Wifi connected to ssid %s, ch %d\n", evt->event_info.connected.ssid,
evt->event_info.connected.channel);
statusWifiUpdate(wifiState);
break;
case EVENT_STAMODE_DISCONNECTED:
wifiState = wifiIsDisconnected;
wifiReason = evt->event_info.disconnected.reason;
DBG("Wifi disconnected from ssid %s, reason %s (%d)\n",
evt->event_info.disconnected.ssid, wifiGetReason(), evt->event_info.disconnected.reason);
statusWifiUpdate(wifiState);
break;
case EVENT_STAMODE_AUTHMODE_CHANGE:
DBG("Wifi auth mode: %d -> %d\n",
evt->event_info.auth_change.old_mode, evt->event_info.auth_change.new_mode);
break;
case EVENT_STAMODE_GOT_IP:
wifiState = wifiGotIP;
wifiReason = 0;
DBG("Wifi got ip:" IPSTR ",mask:" IPSTR ",gw:" IPSTR "\n",
IP2STR(&evt->event_info.got_ip.ip), IP2STR(&evt->event_info.got_ip.mask),
IP2STR(&evt->event_info.got_ip.gw));
statusWifiUpdate(wifiState);
if (!mdns_started)
wifiStartMDNS(evt->event_info.got_ip.ip);
break;
case EVENT_SOFTAPMODE_STACONNECTED:
DBG("Wifi AP: station " MACSTR " joined, AID = %d\n",
MAC2STR(evt->event_info.sta_connected.mac), evt->event_info.sta_connected.aid);
break;
case EVENT_SOFTAPMODE_STADISCONNECTED:
DBG("Wifi AP: station " MACSTR " left, AID = %d\n",
MAC2STR(evt->event_info.sta_disconnected.mac), evt->event_info.sta_disconnected.aid);
break;
default:
break;
}
for (int i = 0; i < 4; i++) {
if (wifi_state_change_cb[i] != NULL) (wifi_state_change_cb[i])(wifiState);
}
}
