Add comments, clean up white space, etc.

Various clean ups now that the basic code appears to work.

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 29 insertions, 1 deletions

diff --git a/ao_panic.c b/ao_panic.c
index 0f8433dc..30ccce60 100644
--- a/ao_panic.c
+++ b/ao_panic.c
@@ -17,8 +17,36 @@
 
 #include "ao.h"
 
+static void
+ao_panic_delay(uint8_t n)
+{
+	uint8_t	i = 0;
+
+	while (n--)
+		while (--i)
+			_asm nop _endasm;
+}
+
 void
 ao_panic(uint8_t reason)
 {
-	(void) reason;
+	uint8_t	n;
+	
+	for (;;) {
+		ao_led_on(AO_LED_RED);
+		ao_beep(AO_BEEP_MID);
+		ao_panic_delay(2);
+		ao_led_off(AO_LED_RED);
+		ao_beep(AO_BEEP_OFF);
+		ao_panic_delay(2);
+		for (n = 0; n < reason; n++) {
+			ao_led_on(AO_LED_RED);
+			ao_beep(AO_BEEP_MID);
+			ao_panic_delay(1);
+			ao_led_off(AO_LED_RED);
+			ao_beep(AO_BEEP_OFF);
+			ao_panic_delay(1);
+		}
+		ao_panic_delay(2);
+	}
 }