From: Nathael Pajani <nathael.pajani@ed3l.fr>
Date: Mon, 16 Sep 2024 18:00:10 +0000 (+0200)
Subject: Update watchdog feeding to prevent some deadlocks
X-Git-Url: http://git.techno-innov.fr/?a=commitdiff_plain;h=3d5b078a581887c4a1ad4ef3a83cb32c6ec72106;p=soft%2Flpc122x%2Fscialys

Update watchdog feeding to prevent some deadlocks
---

diff --git a/v10/main.c b/v10/main.c
index 8d5e66f..421d2fe 100644
--- a/v10/main.c
+++ b/v10/main.c
@@ -636,8 +636,32 @@ int main(void)
 	status_led(green_only);
 
 	while (1) {
-		/* Feed the dog */
-		if ((solar_prod_value != 0) && (home_conso_value != 0) && (water_centi_degrees < ABSOLUTE_MAX_WATER_TEMP)) {
+		/* Feed the dog if sensor values are relevant */
+		int allow_wd_feed = 1;
+		if ((solar_prod_value == 0) || (home_conso_value == 0)) {
+			allow_wd_feed = 0;
+		}
+		if ((water_centi_degrees < 0) || (water_centi_degrees > (ABSOLUTE_MAX_WATER_TEMP + 200))) {
+			allow_wd_feed = 0;
+		}
+		/* Blocked in overvoltage mode */
+		if ((mode == mode_overvoltage) && (overvoltage == 0)) {
+			allow_wd_feed = 0;
+		}
+		/* Blocked in overtemperature mode */
+		if (mode == mode_overtemp) {
+			if ((mosfet_temp_shutdown == 0) && (internal_temp_error_shutdown >= 0)) {
+				allow_wd_feed = 0;
+			}
+		}
+		/* Blocked in water critical temperature mode */
+		if (mode == mode_water_critical) {
+			if (water_centi_degrees < ABSOLUTE_MAX_WATER_TEMP) {
+				allow_wd_feed = 0;
+			}
+		}
+		/* Otherwise, feed the dog */
+		if (allow_wd_feed == 1) {
 			watchdog_feed();
 		}