initial commit

4 files changed, 43 insertions, 0 deletions

diff --git a/kernel/bug/debug.c b/kernel/bug/debug.c
new file mode 100644
index 0000000..10a67d8
--- /dev/null
+++ b/kernel/bug/debug.c
@@ -0,0 +1,6 @@
+#include "bug/debug.h"
+#include "tshield/tshield.h"
+
+void debug_led(int led, int value) {
+  tshield_led(led, value);
+}
\ No newline at end of file
diff --git a/kernel/bug/include/bug/debug.h b/kernel/bug/include/bug/debug.h
new file mode 100644
index 0000000..937ff2c
--- /dev/null
+++ b/kernel/bug/include/bug/debug.h
@@ -0,0 +1,8 @@
+#ifndef DEBUG_H
+#define DEBUG_H
+
+#define DEBUG_LEDS 4
+
+void debug_led(int led, int value);
+
+#endif
\ No newline at end of file
diff --git a/kernel/bug/include/bug/panic.h b/kernel/bug/include/bug/panic.h
new file mode 100644
index 0000000..2a39076
--- /dev/null
+++ b/kernel/bug/include/bug/panic.h
@@ -0,0 +1,6 @@
+#ifndef PANIC_H
+#define PANIC_H
+
+void panic();
+
+#endif
\ No newline at end of file
diff --git a/kernel/bug/panic.c b/kernel/bug/panic.c
new file mode 100644
index 0000000..c82d0f0
--- /dev/null
+++ b/kernel/bug/panic.c
@@ -0,0 +1,23 @@
+#include "bug/panic.h"
+#include "bug/debug.h"
+#include <avr/interrupt.h>
+
+static inline void wait() {
+  for (volatile long i = 0; i < 20000; ++i) {};
+}
+
+void panic() {
+  cli();
+  while(1) {
+    for(int i = 0; i < DEBUG_LEDS; ++i) {
+      debug_led((i - 1) % DEBUG_LEDS, 0);
+      debug_led(i, 1);
+      wait();
+    }
+    for(int i = DEBUG_LEDS - 1; i >= 0; --i) {
+      debug_led((i + 1) % DEBUG_LEDS, 0);
+      debug_led(i, 1);
+      wait();
+    }
+  }
+}
\ No newline at end of file