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leds.h
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1 /* ASB2305-specific LEDs
2  *
3  * Copyright (C) 2007 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 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__
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 */