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leds.h
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1 /* Unit-specific leds
2  *
3  * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
4  * Written by David Howells ([email protected])
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__
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 */