include/asm-mn10300/unit-asb2305/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()               \
  23 do {                                            \
  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)                              \
  38 do {                                                            \
  39         ASB2305_7SEGLEDS = (ONOFF) ? 0x8543077f : 0x7f7f7f7f;   \
  40 } while (0)
  41
  42 #ifndef __ASSEMBLY__
  43 extern void peripheral_leds_display_exception(enum exception_code);
  44 extern void peripheral_leds_led_chase(void);
  45 extern void peripheral_leds7x4_display_dec(unsigned int, unsigned int);
  46 extern void peripheral_leds7x4_display_hex(unsigned int, unsigned int);
  47 extern void peripheral_leds7x4_display_minssecs(unsigned int, unsigned int);
  48 extern void peripheral_leds7x4_display_rtc(void);
  49 #endif /* __ASSEMBLY__ */
  50
  51 #endif /* _ASM_UNIT_LEDS_H */