LXR linux/arch/mn10300/unit-asb2305/include/unit/leds.h

   1/* ASB2305-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 ASB2305_7SEGLEDS        __SYSREG(0xA6F90000, u32)
  20
  21/* perform a hard reset by driving PIO06 low */
  22#define mn10300_unit_hard_reset()               \
  23do {                                            \
  24        P0OUT &= 0xbf;                          \
  25        P0MD = (P0MD & P0MD_6) | P0MD_6_OUT;    \
  26} while (0)
  27
  28/*
  29 * use the 7-segment LEDs to indicate states
  30 */
  31/* indicate double-fault by displaying "db-f" on the LEDs */
  32#define mn10300_set_dbfleds                     \
  33        mov     0x43077f1d,d0           ;       \
  34        mov     d0,(ASB2305_7SEGLEDS)
  35
  36/* flip the 7-segment LEDs between "Gdb-" and "----" */
  37#define mn10300_set_gdbleds(ONOFF)                              \
  38do {                                                            \
  39        ASB2305_7SEGLEDS = (ONOFF) ? 0x8543077f : 0x7f7f7f7f;   \
  40} while (0)
  41
  42#ifndef __ASSEMBLY__
  43extern void peripheral_leds_display_exception(enum exception_code);
  44extern void peripheral_leds_led_chase(void);
  45extern void peripheral_leds7x4_display_dec(unsigned int, unsigned int);
  46extern void peripheral_leds7x4_display_hex(unsigned int, unsigned int);
  47extern void peripheral_leds7x4_display_minssecs(unsigned int, unsigned int);
  48extern void peripheral_leds7x4_display_rtc(void);
  49#endif /* __ASSEMBLY__ */
  50
  51#endif /* _ASM_UNIT_LEDS_H */
  52