From 00efdf295efb4da45e2e65807ea127c2193f993b Mon Sep 17 00:00:00 2001
From: Sadeep Madurange <sadeep@asciimx.com>
Date: Fri, 11 Apr 2025 11:54:06 +0800
Subject: WDT control code.

---
 lock/util.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'lock/util.c')

diff --git a/lock/util.c b/lock/util.c
index bc62438..dda35a2 100644
--- a/lock/util.c
+++ b/lock/util.c
@@ -1,5 +1,6 @@
 #include <avr/io.h>
 #include <avr/interrupt.h>
+#include <avr/wdt.h>
 
 #include "util.h"
 
@@ -14,6 +15,13 @@ static char tab[] = {
 
 static uint16_t tablen = sizeof(tab) / sizeof(tab[0]);
 
+void wdt_init(void)
+{
+	wdt_reset();
+	WDTCSR |= (1 << WDCE) | (1 << WDE);
+	WDTCSR = (1 << WDE) | (1 << WDP3) | (1 << WDP0);
+}
+
 void keygen(char *buf, uint8_t n)
 {
 	int i, imax;
-- 
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