Ssid2 retain mod - last used SSID will be preserved /Beken Only/

src/httpserver/http_fns.c

@@ -1316,6 +1316,7 @@ int http_fn_cfg_wifi(http_request_t* request) {
 	add_label_text_field(request, "SSID", "ssid", CFG_GetWiFiSSID(), "<form action=\"/cfg_wifi_set\">");
 	add_label_password_field(request, "", "pass", CFG_GetWiFiPass(), "<br>Password<span  style=\"float:right;\"><input type=\"checkbox\" onclick=\"e=getElement('pass');if(this.checked){e.value='';e.type='text'}else e.type='password'\" > enable clear text password (clears existing)</span>");
 	poststr_h2(request, "Alternate WiFi (used when first one is not responding)");
+	poststr(request, "Note: It is possible to retain used SSID using command setStartupSSIDChannel in early.bat");
 #ifndef PLATFORM_BEKEN
 	poststr_h2(request, "SSID2 only on Beken Platform (BK7231T, BK7231N)");
 #endif

src/new_pins.c

@@ -38,6 +38,30 @@ int BTN_HOLD_REPEAT_MS;
 byte *g_defaultWakeEdge = 0;
 int g_initialPinStates = 0;
 
+#if ALLOW_SSID2
+//20241125 XJIKKA SSID retain - last used SSID will be preserved
+// To enable this feature, the channel that will be used to store the last SSID 
+// must be set using the setStartupSSIDChannel command in early.bat. 
+// It has to be in early.bat.Autoexec.bat is processed after the wifi data is loaded.
+int g_StartupSSIDRetainChannel = -1; // -1 disabled, 0..MAX_RETAIN_CHANNELS-1 channel to store last SSID
+
+int FV_GetStartupSSID_StoredValue(int adefault) {
+	if ((g_StartupSSIDRetainChannel < 0) || (g_StartupSSIDRetainChannel >= MAX_RETAIN_CHANNELS)) return adefault;
+	int fval = HAL_FlashVars_GetChannelValue(g_StartupSSIDRetainChannel);
+	return (fval & 1);	////only SSID1 (0) and SSID2 (1) allowed
+}
+void FV_UpdateStartupSSIDIfChanged_StoredValue(int assidindex) {
+	if ((g_StartupSSIDRetainChannel < 0) || (g_StartupSSIDRetainChannel >= MAX_RETAIN_CHANNELS)) return;
+	if ((assidindex < 0) && (assidindex > 1)) return;	//only SSID1 (0) and SSID2 (1) allowed
+	int fval = HAL_FlashVars_GetChannelValue(g_StartupSSIDRetainChannel);
+	if (fval == assidindex) {
+		addLogAdv(LOG_INFO, LOG_FEATURE_GENERAL, "WiFi unchanged (SSID%i), HAL_FlashVars_SaveChannel skipped", assidindex+1);
+		return;	//same value, no update
+	}
+	HAL_FlashVars_SaveChannel(g_StartupSSIDRetainChannel,assidindex);
+}
+#endif
+
 void PIN_DeepSleep_MakeSureEdgesAreAlloced() {
 	int i;
 	if (g_defaultWakeEdge == 0) {
@@ -2172,7 +2196,56 @@ static commandResult_t CMD_SetChannelType(const void* context, const char* cmd,
 	addLogAdv(LOG_INFO, LOG_FEATURE_GENERAL, "Channel %i type changed to %s", channel, type);
 	return CMD_RES_OK;
 }
+#if ALLOW_SSID2
+// setStartupSSIDChannel [-1 or RetainChannelIndex]
+static commandResult_t CMD_setStartupSSIDChannel(const void* context, const char* cmd, const char* args, int cmdFlags) {
 
+	Tokenizer_TokenizeString(args, 0);
+
+	if (Tokenizer_GetArgsCount() >= 1) {
+		int fval = Tokenizer_GetArgInteger(0);
+		if ((fval < -1) || (fval >= MAX_RETAIN_CHANNELS - 1)) {
+			addLogAdv(LOG_INFO, LOG_FEATURE_GENERAL, "StartupSSIDChannel value error: %i Allowed values (-1, 0..%i)", fval, MAX_RETAIN_CHANNELS - 1);
+			return CMD_RES_BAD_ARGUMENT;
+		}
+		g_StartupSSIDRetainChannel = fval;
+		addLogAdv(LOG_INFO, LOG_FEATURE_GENERAL, "StartupSSIDChannel changed to %i", g_StartupSSIDRetainChannel);
+	}
+	else {
+		addLogAdv(LOG_INFO, LOG_FEATURE_GENERAL, "StartupSSIDChannel is %i", g_StartupSSIDRetainChannel);
+	}
+	return CMD_RES_OK;
+}
+// setStartupSSID [0/1]  
+// Sets startup SSID - 0=SSID1 1=SSID2 - which SSID will be used after reboot. 
+// for this to work, setStartupSSIDChannel and SSID2 must be set
+static commandResult_t CMD_setStartupSSID(const void* context, const char* cmd, const char* args, int cmdFlags) {
+
+	Tokenizer_TokenizeString(args, 0);
+
+	int fold = FV_GetStartupSSID_StoredValue(0);
+	if (Tokenizer_GetArgsCount() >= 1) {
+		int fval = Tokenizer_GetArgInteger(0);
+		if ((fval < 0) || (fval >1)) {
+			addLogAdv(LOG_INFO, LOG_FEATURE_GENERAL, "StartupSSID value error: %i Allowed values (0, 1)", fval);
+			return CMD_RES_BAD_ARGUMENT;
+		}
+		if (g_StartupSSIDRetainChannel<0) {
+			addLogAdv(LOG_INFO, LOG_FEATURE_GENERAL, "Cannot set StartupSSID, StartupSSIDChannel is not set.");
+			return CMD_RES_BAD_ARGUMENT;
+		}
+		if (!(fval==fold)) {
+			FV_UpdateStartupSSIDIfChanged_StoredValue(fval);//update flash only when changed
+			addLogAdv(LOG_INFO, LOG_FEATURE_GENERAL, "StartupSSID changed to %i", fval);
+		} else {
+			addLogAdv(LOG_INFO, LOG_FEATURE_GENERAL, "StartupSSID unchanged %i", fval);
+		}
+	} else {
+		addLogAdv(LOG_INFO, LOG_FEATURE_GENERAL, "StartupSSID is %i", fold);
+	}
+	return CMD_RES_OK;
+}
+#endif
 /// @brief Computes the Relay and PWM count.
 /// @param relayCount Number of relay and LED channels.
 /// @param pwmCount Number of PWM channels.
@@ -2334,5 +2407,16 @@ void PIN_AddCommands(void)
 	//cmddetail:"fn":"CMD_setButtonHoldRepeat","file":"new_pins.c","requires":"",
 	//cmddetail:"examples":""}
 	CMD_RegisterCommand("setButtonHoldRepeat", CMD_setButtonHoldRepeat, NULL);
-
+#if ALLOW_SSID2
+	//cmddetail:{"name":"setStartupSSIDChannel","args":"[Value]",
+	//cmddetail:"descr":"Sets retain channel number to store last used SSID, 0..MAX_RETAIN_CHANNELS-1, -1 to disable. Suggested channel number is 7 (MAXMAX_RETAIN_CHANNELS-5)",
+	//cmddetail:"fn":"CMD_setStartupSSIDChannel","file":"new_pins.c","requires":"",
+	//cmddetail:"examples":""}
+	CMD_RegisterCommand("setStartupSSIDChannel", CMD_setStartupSSIDChannel, NULL);
+	//cmddetail:{"name":"setStartupSSID","args":"[Value]",
+	//cmddetail:"descr":"Sets startup SSID, 0 (SSID0) 1 (SSID1)",
+	//cmddetail:"fn":"CMD_setStartupSSID","file":"new_pins.c","requires":"",
+	//cmddetail:"examples":""}
+	CMD_RegisterCommand("setStartupSSID", CMD_setStartupSSID, NULL);
+#endif
 }

src/new_pins.h

@@ -1434,4 +1434,9 @@ int PIN_IOR_NofChan(int test);
 
 extern const char* g_channelTypeNames[];
 
+#if ALLOW_SSID2
+int FV_GetStartupSSID_StoredValue(int adefault);
+void FV_UpdateStartupSSIDIfChanged_StoredValue(int assidindex);
+#endif
+
 #endif

src/user_main.c

@@ -289,7 +289,9 @@ void LN882H_ApplyPowerSave(int bOn);
 
 // SSID switcher by xjikka 20240525
 #if ALLOW_SSID2
-static int g_SSIDactual = 0;        // 0=SSID1 1=SSID2
+#define SSID_USE_SSID1  0
+#define SSID_USE_SSID2  1
+static int g_SSIDactual = SSID_USE_SSID1;       // -1 not initialized,  0=SSID1 1=SSID2
 static int g_SSIDSwitchAfterTry = 3;// switch to opposite SSID after
 static int g_SSIDSwitchCnt = 0;     // switch counter
 #endif
@@ -308,6 +310,13 @@ void CheckForSSID12_Switch() {
 #endif
 }
 
+//20241125 XJIKKA Init last stored SSID from RetailChannel if set
+//Note that it must be set in early.bat using CMD_setStartupSSIDChannel
+void Init_WiFiSSIDactual_FromChannelIfSet(void) {
+#if ALLOW_SSID2
+	g_SSIDactual = FV_GetStartupSSID_StoredValue(SSID_USE_SSID1);
+#endif
+}
 const char* CFG_GetWiFiSSIDX() {
 #if ALLOW_SSID2
 	if (g_SSIDactual) {
@@ -370,6 +379,9 @@ void Main_OnWiFiStatusChange(int code)
 		ADDLOGF_INFO("Main_OnWiFiStatusChange - WIFI_STA_AUTH_FAILED - %i\r\n", code);
 		break;
 	case WIFI_STA_CONNECTED:
+#if ALLOW_SSID2
+		if (!g_bHasWiFiConnected) FV_UpdateStartupSSIDIfChanged_StoredValue(g_SSIDactual);	//update ony on first connect
+#endif
 		g_bHasWiFiConnected = 1;
 #if ALLOW_SSID2
 		g_SSIDSwitchCnt = 0;
@@ -1343,9 +1355,11 @@ void Main_Init_After_Delay()
 	if (bSafeMode) {
 		ADDLOGF_INFO("###### safe mode activated - boot failures %d", g_bootFailures);
 	}
-
-	wifi_ssid = CFG_GetWiFiSSID();
-	wifi_pass = CFG_GetWiFiPass();
+#if ALLOW_SSID2
+	Init_WiFiSSIDactual_FromChannelIfSet();//Channel must be set in early.bat using CMD_setStartupSSIDChannel
+#endif
+	wifi_ssid = CFG_GetWiFiSSIDX();
+	wifi_pass = CFG_GetWiFiPassX();
 
 #if 0
 	// you can use this if you bricked your module by setting wrong access point data