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Fork of the espurna firmware for `mhsw` switches
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mhsw-espurna/code/espurna/wifi.ino

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/*
WIFI MODULE
Copyright (C) 2016-2018 by Xose Pérez <xose dot perez at gmail dot com>
*/
#include "JustWifi.h"
// -----------------------------------------------------------------------------
// WIFI
// -----------------------------------------------------------------------------
void _wifiWebSocketOnSend(JsonObject& root) {
root["maxNetworks"] = WIFI_MAX_NETWORKS;
JsonArray& wifi = root.createNestedArray("wifi");
for (byte i=0; i<WIFI_MAX_NETWORKS; i++) {
if (!hasSetting("ssid", i)) break;
JsonObject& network = wifi.createNestedObject();
network["ssid"] = getSetting("ssid", i, "");
network["pass"] = getSetting("pass", i, "");
network["ip"] = getSetting("ip", i, "");
network["gw"] = getSetting("gw", i, "");
network["mask"] = getSetting("mask", i, "");
network["dns"] = getSetting("dns", i, "");
}
}
String getIP() {
if (WiFi.getMode() == WIFI_AP) {
return WiFi.softAPIP().toString();
}
return WiFi.localIP().toString();
}
String getNetwork() {
if (WiFi.getMode() == WIFI_AP) {
return jw.getAPSSID();
}
return WiFi.SSID();
}
double wifiDistance(int rssi) {
double exponent = (double) (WIFI_RSSI_1M - rssi) / WIFI_PROPAGATION_CONST / 10.0;
return round(pow(10, exponent));
}
void wifiDisconnect() {
jw.disconnect();
}
void resetConnectionTimeout() {
jw.resetReconnectTimeout();
}
bool wifiConnected() {
return jw.connected();
}
bool createAP() {
jw.disconnect();
jw.resetReconnectTimeout();
return jw.createAP();
}
void wifiReconnectCheck() {
bool connected = false;
#if WEB_SUPPORT
if (wsConnected()) connected = true;
#endif
#if TELNET_SUPPORT
if (telnetConnected()) connected = true;
#endif
jw.setReconnectTimeout(connected ? 0 : WIFI_RECONNECT_INTERVAL);
}
void wifiConfigure() {
jw.setHostname(getSetting("hostname").c_str());
#if USE_PASSWORD
jw.setSoftAP(getSetting("hostname").c_str(), getSetting("adminPass", ADMIN_PASS).c_str());
#else
jw.setSoftAP(getSetting("hostname").c_str());
#endif
jw.setConnectTimeout(WIFI_CONNECT_TIMEOUT);
wifiReconnectCheck();
jw.setAPMode(WIFI_AP_MODE);
jw.cleanNetworks();
// If system is flagged unstable we do not init wifi networks
#if SYSTEM_CHECK_ENABLED
if (!systemCheck()) return;
#endif
// Clean settings
wifiClean(WIFI_MAX_NETWORKS);
int i;
for (i = 0; i< WIFI_MAX_NETWORKS; i++) {
if (getSetting("ssid" + String(i)).length() == 0) break;
if (getSetting("ip" + String(i)).length() == 0) {
jw.addNetwork(
getSetting("ssid" + String(i)).c_str(),
getSetting("pass" + String(i)).c_str()
);
} else {
jw.addNetwork(
getSetting("ssid" + String(i)).c_str(),
getSetting("pass" + String(i)).c_str(),
getSetting("ip" + String(i)).c_str(),
getSetting("gw" + String(i)).c_str(),
getSetting("mask" + String(i)).c_str(),
getSetting("dns" + String(i)).c_str()
);
}
}
jw.scanNetworks(true);
}
void wifiStatus() {
if (WiFi.getMode() == WIFI_AP_STA) {
DEBUG_MSG_P(PSTR("[WIFI] MODE AP + STA --------------------------------\n"));
} else if (WiFi.getMode() == WIFI_AP) {
DEBUG_MSG_P(PSTR("[WIFI] MODE AP --------------------------------------\n"));
} else if (WiFi.getMode() == WIFI_STA) {
DEBUG_MSG_P(PSTR("[WIFI] MODE STA -------------------------------------\n"));
} else {
DEBUG_MSG_P(PSTR("[WIFI] MODE OFF -------------------------------------\n"));
DEBUG_MSG_P(PSTR("[WIFI] No connection\n"));
}
if ((WiFi.getMode() & WIFI_AP) == WIFI_AP) {
DEBUG_MSG_P(PSTR("[WIFI] SSID %s\n"), jw.getAPSSID().c_str());
DEBUG_MSG_P(PSTR("[WIFI] PASS %s\n"), getSetting("adminPass", ADMIN_PASS).c_str());
DEBUG_MSG_P(PSTR("[WIFI] IP %s\n"), WiFi.softAPIP().toString().c_str());
DEBUG_MSG_P(PSTR("[WIFI] MAC %s\n"), WiFi.softAPmacAddress().c_str());
}
if ((WiFi.getMode() & WIFI_STA) == WIFI_STA) {
uint8_t * bssid = WiFi.BSSID();
DEBUG_MSG_P(PSTR("[WIFI] SSID %s\n"), WiFi.SSID().c_str());
DEBUG_MSG_P(PSTR("[WIFI] IP %s\n"), WiFi.localIP().toString().c_str());
DEBUG_MSG_P(PSTR("[WIFI] MAC %s\n"), WiFi.macAddress().c_str());
DEBUG_MSG_P(PSTR("[WIFI] GW %s\n"), WiFi.gatewayIP().toString().c_str());
DEBUG_MSG_P(PSTR("[WIFI] DNS %s\n"), WiFi.dnsIP().toString().c_str());
DEBUG_MSG_P(PSTR("[WIFI] MASK %s\n"), WiFi.subnetMask().toString().c_str());
DEBUG_MSG_P(PSTR("[WIFI] HOST %s\n"), WiFi.hostname().c_str());
DEBUG_MSG_P(PSTR("[WIFI] BSSID %02X:%02X:%02X:%02X:%02X:%02X\n"),
bssid[0], bssid[1], bssid[2], bssid[3], bssid[4], bssid[5], bssid[6]
);
DEBUG_MSG_P(PSTR("[WIFI] CH %d\n"), WiFi.channel());
DEBUG_MSG_P(PSTR("[WIFI] RSSI %d\n"), WiFi.RSSI());
}
DEBUG_MSG_P(PSTR("[WIFI] ----------------------------------------------\n"));
}
void wifiScan() {
DEBUG_MSG_P(PSTR("[WIFI] Start scanning\n"));
unsigned char result = WiFi.scanNetworks();
if (result == WIFI_SCAN_FAILED) {
DEBUG_MSG_P(PSTR("[WIFI] Scan failed\n"));
} else if (result == 0) {
DEBUG_MSG_P(PSTR("[WIFI] No networks found\n"));
} else {
DEBUG_MSG_P(PSTR("[WIFI] %d networks found:\n"), result);
// Populate defined networks with scan data
for (int8_t i = 0; i < result; ++i) {
String ssid_scan;
int32_t rssi_scan;
uint8_t sec_scan;
uint8_t* BSSID_scan;
int32_t chan_scan;
bool hidden_scan;
WiFi.getNetworkInfo(i, ssid_scan, sec_scan, rssi_scan, BSSID_scan, chan_scan, hidden_scan);
DEBUG_MSG_P(PSTR("[WIFI] - BSSID: %02X:%02X:%02X:%02X:%02X:%02X SEC: %s RSSI: %3d CH: %2d SSID: %s\n"),
BSSID_scan[1], BSSID_scan[2], BSSID_scan[3], BSSID_scan[4], BSSID_scan[5], BSSID_scan[6],
(sec_scan != ENC_TYPE_NONE ? "YES" : "NO "),
rssi_scan,
chan_scan,
(char *) ssid_scan.c_str()
);
}
}
WiFi.scanDelete();
}
bool wifiClean(unsigned char num) {
bool changed = false;
int i = 0;
// Clean defined settings
while (i < num) {
// Skip on first non-defined setting
if (!hasSetting("ssid", i)) {
delSetting("ssid", i);
break;
}
// Delete empty values
if (!hasSetting("pass", i)) delSetting("pass", i);
if (!hasSetting("ip", i)) delSetting("ip", i);
if (!hasSetting("gw", i)) delSetting("gw", i);
if (!hasSetting("mask", i)) delSetting("mask", i);
if (!hasSetting("dns", i)) delSetting("dns", i);
++i;
}
// Delete all other settings
while (i < WIFI_MAX_NETWORKS) {
changed = hasSetting("ssid", i);
delSetting("ssid", i);
delSetting("pass", i);
delSetting("ip", i);
delSetting("gw", i);
delSetting("mask", i);
delSetting("dns", i);
++i;
}
return changed;
}
// Inject hardcoded networks
void wifiInject() {
#ifdef WIFI1_SSID
if (getSetting("ssid", 0, "").length() == 0) setSetting("ssid", 0, WIFI1_SSID);
#endif
#ifdef WIFI1_PASS
if (getSetting("pass", 0, "").length() == 0) setSetting("pass", 0, WIFI1_PASS);
#endif
#ifdef WIFI1_IP
if (getSetting("ip", 0, "").length() == 0) setSetting("ip", 0, WIFI1_IP);
#endif
#ifdef WIFI1_GW
if (getSetting("gw", 0, "").length() == 0) setSetting("gw", 0, WIFI1_GW);
#endif
#ifdef WIFI1_MASK
if (getSetting("mask", 0, "").length() == 0) setSetting("mask", 0, WIFI1_MASK);
#endif
#ifdef WIFI1_DNS
if (getSetting("dns", 0, "").length() == 0) setSetting("dns", 0, WIFI1_DNS);
#endif
#ifdef WIFI2_SSID
if (getSetting("ssid", 1, "").length() == 0) setSetting("ssid", 1, WIFI2_SSID);
#endif
#ifdef WIFI2_PASS
if (getSetting("pass", 1, "").length() == 0) setSetting("pass", 1, WIFI2_PASS);
#endif
#ifdef WIFI2_IP
if (getSetting("ip", 1, "").length() == 0) setSetting("ip", 1, WIFI2_IP);
#endif
#ifdef WIFI2_GW
if (getSetting("gw", 1, "").length() == 0) setSetting("gw", 1, WIFI2_GW);
#endif
#ifdef WIFI2_MASK
if (getSetting("mask", 1, "").length() == 0) setSetting("mask", 1, WIFI2_MASK);
#endif
#ifdef WIFI2_DNS
if (getSetting("dns", 1, "").length() == 0) setSetting("dns", 1, WIFI2_DNS);
#endif
}
#if DEBUG_SUPPORT
void _wifiDebug(justwifi_messages_t code, char * parameter) {
if (code == MESSAGE_SCANNING) {
DEBUG_MSG_P(PSTR("[WIFI] Scanning\n"));
}
if (code == MESSAGE_SCAN_FAILED) {
DEBUG_MSG_P(PSTR("[WIFI] Scan failed\n"));
}
if (code == MESSAGE_NO_NETWORKS) {
DEBUG_MSG_P(PSTR("[WIFI] No networks found\n"));
}
if (code == MESSAGE_NO_KNOWN_NETWORKS) {
DEBUG_MSG_P(PSTR("[WIFI] No known networks found\n"));
}
if (code == MESSAGE_FOUND_NETWORK) {
DEBUG_MSG_P(PSTR("[WIFI] %s\n"), parameter);
}
if (code == MESSAGE_CONNECTING) {
DEBUG_MSG_P(PSTR("[WIFI] Connecting to %s\n"), parameter);
}
if (code == MESSAGE_CONNECT_WAITING) {
// too much noise
}
if (code == MESSAGE_CONNECT_FAILED) {
DEBUG_MSG_P(PSTR("[WIFI] Could not connect to %s\n"), parameter);
}
if (code == MESSAGE_CONNECTED) {
wifiStatus();
}
if (code == MESSAGE_ACCESSPOINT_CREATED) {
wifiStatus();
}
if (code == MESSAGE_DISCONNECTED) {
DEBUG_MSG_P(PSTR("[WIFI] Disconnected\n"));
}
if (code == MESSAGE_ACCESSPOINT_CREATING) {
DEBUG_MSG_P(PSTR("[WIFI] Creating access point\n"));
}
if (code == MESSAGE_ACCESSPOINT_FAILED) {
DEBUG_MSG_P(PSTR("[WIFI] Could not create access point\n"));
}
}
#endif // DEBUG_SUPPORT
#if TERMINAL_SUPPORT
void _wifiInitCommands() {
settingsRegisterCommand(F("WIFI.RESET"), [](Embedis* e) {
wifiConfigure();
wifiDisconnect();
DEBUG_MSG_P(PSTR("+OK\n"));
});
settingsRegisterCommand(F("WIFI.SCAN"), [](Embedis* e) {
wifiScan();
DEBUG_MSG_P(PSTR("+OK\n"));
});
}
#endif
void wifiRegister(wifi_callback_f callback) {
jw.subscribe(callback);
}
void wifiSetup() {
#if WIFI_SLEEP_ENABLED
wifi_set_sleep_type(LIGHT_SLEEP_T);
#endif
wifiInject();
wifiConfigure();
// Message callbacks
#if DEBUG_SUPPORT
wifiRegister(_wifiDebug);
#endif
#if WEB_SUPPORT
wsOnSendRegister(_wifiWebSocketOnSend);
wsOnAfterParseRegister(wifiConfigure);
#endif
#if TERMINAL_SUPPORT
_wifiInitCommands();
#endif
}
void wifiLoop() {
jw.loop();
}