From 324ced6807019fee1b89fad996f8ad696c239694 Mon Sep 17 00:00:00 2001
From: "D.R.racer" <drracer@drracer.eu>
Date: Tue, 20 Jul 2021 07:16:59 +0200
Subject: [PATCH] Add watchdog implementation + use it in main()

---
 src/hal/CMakeLists.txt   |  1 +
 src/hal/avr/watchdog.cpp | 15 +++++++++++++++
 src/hal/watchdog.h       |  1 +
 src/main.cpp             |  6 +++++-
 4 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 src/hal/avr/watchdog.cpp

diff --git a/src/hal/CMakeLists.txt b/src/hal/CMakeLists.txt
index 77c7d99..fd0029d 100644
--- a/src/hal/CMakeLists.txt
+++ b/src/hal/CMakeLists.txt
@@ -8,4 +8,5 @@ target_sources(
           tmc2130.cpp
           adc.cpp
           avr/spi.cpp
+          avr/watchdog.cpp
   )
diff --git a/src/hal/avr/watchdog.cpp b/src/hal/avr/watchdog.cpp
new file mode 100644
index 0000000..a707047
--- /dev/null
+++ b/src/hal/avr/watchdog.cpp
@@ -0,0 +1,15 @@
+#include "../watchdog.h"
+
+namespace hal {
+namespace watchdog {
+
+void ConfigureWatchDog(uint16_t period) {
+    // @@TODO
+}
+
+void ResetWatchDog() {
+    asm("wdr");
+}
+
+} // namespace watchdog
+} // namespace hal
diff --git a/src/hal/watchdog.h b/src/hal/watchdog.h
index c57d373..90c3f10 100644
--- a/src/hal/watchdog.h
+++ b/src/hal/watchdog.h
@@ -1,4 +1,5 @@
 #pragma once
+#include <stdint.h>
 
 namespace hal {
 
diff --git a/src/main.cpp b/src/main.cpp
index 9fedbe2..8dcbf77 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -4,6 +4,7 @@
 #include "hal/shr16.h"
 #include "hal/spi.h"
 #include "hal/usart.h"
+#include "hal/watchdog.h"
 
 #include "pins.h"
 #include <avr/interrupt.h>
@@ -96,6 +97,8 @@ void setup() {
 
     mt::timebase.Init();
 
+    hal::watchdog::ConfigureWatchDog(8);
+
     mg::globals.Init();
 
     // watchdog init
@@ -363,7 +366,8 @@ void loop() {
     ms::selector.Step();
     mui::userInput.Step();
     currentCommand->Step();
-    // add a watchdog reset
+
+    hal::watchdog::ResetWatchDog();
 }
 
 int main() {