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__
47extern void peripheral_leds_display_exception(enum exception_code);
48extern void peripheral_leds_led_chase(void);
49extern void peripheral_leds7x4_display_dec(unsigned int, unsigned int);
50extern void peripheral_leds7x4_display_hex(unsigned int, unsigned int);
51extern void debug_to_serial(const char *, int);
52#endif /* __ASSEMBLY__ */
53
54#endif /* _ASM_UNIT_LEDS_H */
55