altos: Rename 'core' to 'kernel'

[fw/altos] / src / kernel / ao_panic.c

diff --git a/src/kernel/ao_panic.c b/src/kernel/ao_panic.c
new file mode 100644 (file)
index 0000000..c29cd8f
--- /dev/null
+++ b/src/kernel/ao_panic.c
@@ -0,0 +1,90 @@
+/*
+ * Copyright © 2009 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#include "ao.h"
+
+#ifndef HAS_BEEP
+#error Please define HAS_BEEP
+#endif
+
+#if !HAS_BEEP
+#define ao_beep(x)
+#endif
+#if !LEDS_AVAILABLE
+#define ao_led_on(x)
+#define ao_led_off(x)
+#endif
+
+#ifndef AO_LED_PANIC
+#define AO_LED_PANIC   AO_LED_RED
+#endif
+
+static void
+ao_panic_delay(uint8_t n)
+{
+       uint8_t i = 0, j = 0;
+
+       while (n--)
+               while (--j)
+                       while (--i)
+                               ao_arch_nop();
+}
+
+void
+ao_panic(uint8_t reason)
+{
+       uint8_t n;
+
+#if LOW_LEVEL_DEBUG
+       ao_cur_task = NULL;
+       printf ("panic %d\n", reason);
+#endif
+       ao_arch_block_interrupts();
+       for (;;) {
+               ao_panic_delay(20);
+               for (n = 0; n < 5; n++) {
+                       ao_led_on(AO_LED_PANIC);
+                       ao_beep(AO_BEEP_HIGH);
+                       ao_panic_delay(1);
+                       ao_led_off(AO_LED_PANIC);
+                       ao_beep(AO_BEEP_LOW);
+                       ao_panic_delay(1);
+               }
+               ao_beep(AO_BEEP_OFF);
+               ao_panic_delay(2);
+
+#ifdef SDCC
+#pragma disable_warning 126
+#endif
+               if (reason & 0x40) {
+                       ao_led_on(AO_LED_PANIC);
+                       ao_beep(AO_BEEP_HIGH);
+                       ao_panic_delay(40);
+                       ao_led_off(AO_LED_PANIC);
+                       ao_beep(AO_BEEP_OFF);
+                       ao_panic_delay(10);
+               }
+               for (n = 0; n < (reason & 0x3f); n++) {
+                       ao_led_on(AO_LED_PANIC);
+                       ao_beep(AO_BEEP_MID);
+                       ao_panic_delay(10);
+                       ao_led_off(AO_LED_PANIC);
+                       ao_beep(AO_BEEP_OFF);
+                       ao_panic_delay(10);
+               }
+       }
+}