firmware/panic.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2002 by wavey@wavey.org
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 #include "config.h"
  23 #include <stdio.h>
  24 #include <stdarg.h>
  25 #include <string.h>
  26 #include "panic.h"
  27 #include "lcd.h"
  28 #include "font.h"
  29 #include "debug.h"
  30 #include "led.h"
  31 #include "power.h"
  32 #include "system.h"
  33
  34 static char panic_buf[128];
  35 #define LINECHARS (LCD_WIDTH/SYSFONT_WIDTH)
  36
  37 /*
  38  * "Dude. This is pretty fucked-up, right here."
  39  */
  40 void panicf( const char *fmt, ...)
  41 {
  42     va_list ap;
  43
  44 #ifndef SIMULATOR
  45     /* Disable interrupts */
  46 #ifdef CPU_ARM
  47     disable_interrupt(IRQ_FIQ_STATUS);
  48 #else
  49     set_irq_level(DISABLE_INTERRUPTS);
  50 #endif
  51 #endif /* SIMULATOR */
  52
  53     va_start( ap, fmt );
  54     vsnprintf( panic_buf, sizeof(panic_buf), fmt, ap );
  55     va_end( ap );
  56
  57 #ifdef HAVE_LCD_CHARCELLS
  58     lcd_double_height(false);
  59     lcd_puts(0, 0, "*PANIC*");
  60     lcd_puts(0, 1, panic_buf);
  61 #elif defined(HAVE_LCD_BITMAP)
  62     int y = 1;
  63
  64 #if LCD_DEPTH > 1
  65     lcd_set_backdrop(NULL);
  66     lcd_set_foreground(LCD_BLACK);
  67     lcd_set_background(LCD_WHITE);
  68 #endif
  69
  70     lcd_clear_display();
  71     lcd_setfont(FONT_SYSFIXED);
  72     lcd_set_viewport(NULL);
  73     lcd_puts(1, y++, (unsigned char *)"*PANIC*");
  74     {
  75         /* wrap panic line */
  76         int i, len = strlen(panic_buf);
  77         for (i=0; i<len; i+=LINECHARS) {
  78             unsigned char c = panic_buf[i+LINECHARS];
  79             panic_buf[i+LINECHARS] = 0;
  80             lcd_puts(1, y++, (unsigned char *)panic_buf+i);
  81             panic_buf[i+LINECHARS] = c;
  82         }
  83     }
  84 #else
  85     /* no LCD */
  86 #endif
  87
  88     lcd_update();
  89     DEBUGF("%s", panic_buf);
  90
  91     set_cpu_frequency(0);
  92
  93 #ifdef HAVE_ATA_POWER_OFF
  94     ide_power_enable(false);
  95 #endif
  96
  97     system_exception_wait(); /* if this returns, try to reboot */
  98     system_reboot();
  99     while (1);       /* halt */
 100 }