arch/mn10300/unit-asb2303/include/unit/leds.h

   1 /* ASB2303-specific LEDs
   2  *
   3  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
   4  * Written by David Howells (dhowells@redhat.com)
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public Licence
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the Licence, or (at your option) any later version.
  10  */
  11
  12 #ifndef _ASM_UNIT_LEDS_H
  13 #define _ASM_UNIT_LEDS_H
  14
  15 #include <asm/pio-regs.h>
  16 #include <asm/cpu-regs.h>
  17 #include <asm/exceptions.h>
  18
  19 #define ASB2303_GPIO0DEF        __SYSREG(0xDB000000, u32)
  20 #define ASB2303_7SEGLEDS        __SYSREG(0xDB000008, u32)
  21
  22 /*
  23  * use the 7-segment LEDs to indicate states
  24  */
  25
  26 /* flip the 7-segment LEDs between "G" and "-" */
  27 #define mn10300_set_gdbleds(ONOFF)                      \
  28 do {                                                    \
  29         ASB2303_7SEGLEDS = (ONOFF) ? 0x85 : 0x7f;       \
  30 } while (0)
  31
  32 /* indicate double-fault by displaying "d" on the LEDs */
  33 #define mn10300_set_dbfleds                     \
  34         mov     0x43,d0                 ;       \
  35         movbu   d0,(ASB2303_7SEGLEDS)
  36
  37 #ifndef __ASSEMBLY__
  38 extern void peripheral_leds_display_exception(enum exception_code code);
  39 extern void peripheral_leds_led_chase(void);
  40 extern void debug_to_serial(const char *p, int n);
  41 #endif /* __ASSEMBLY__ */
  42
  43 #endif /* _ASM_UNIT_LEDS_H */