arch/mn10300/unit-asb2364/include/unit/leds.h

   1 /* Unit-specific leds
   2  *
   3  * Copyright (C) 2005 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 License
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the License, 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 MN10300_USE_7SEGLEDS    0
  20
  21 #define ASB2364_7SEGLEDS        __SYSREG(0xA9001630, u32)
  22
  23 /*
  24  * use the 7-segment LEDs to indicate states
  25  */
  26
  27 #if MN10300_USE_7SEGLEDS
  28 /* flip the 7-segment LEDs between "Gdb-" and "----" */
  29 #define mn10300_set_gdbleds(ONOFF)                                      \
  30         do {                                                            \
  31                 ASB2364_7SEGLEDS = (ONOFF) ? 0x8543077f : 0x7f7f7f7f;   \
  32         } while (0)
  33 #else
  34 #define mn10300_set_gdbleds(ONOFF) do {} while (0)
  35 #endif
  36
  37 #if MN10300_USE_7SEGLEDS
  38 /* indicate double-fault by displaying "db-f" on the LEDs */
  39 #define mn10300_set_dbfleds                     \
  40         mov     0x43077f1d,d0           ;       \
  41         mov     d0,(ASB2364_7SEGLEDS)
  42 #else
  43 #define mn10300_set_dbfleds
  44 #endif
  45
  46 #ifndef __ASSEMBLY__
  47 extern void peripheral_leds_display_exception(enum exception_code);
  48 extern void peripheral_leds_led_chase(void);
  49 extern void peripheral_leds7x4_display_dec(unsigned int, unsigned int);
  50 extern void peripheral_leds7x4_display_hex(unsigned int, unsigned int);
  51 extern void debug_to_serial(const char *, int);
  52 #endif /* __ASSEMBLY__ */
  53
  54 #endif /* _ASM_UNIT_LEDS_H */