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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/mn10300/unit-asb2305/include/unit/leds.h
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/* ASB2305-specific LEDs

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 *

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 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.

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 * Written by David Howells ([email protected])

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 *

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 * This program is free software; you can redistribute it and/or

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 * modify it under the terms of the GNU General Public Licence

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 * as published by the Free Software Foundation; either version

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 * 2 of the Licence, or (at your option) any later version.

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 */

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#ifndef _ASM_UNIT_LEDS_H

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#define _ASM_UNIT_LEDS_H

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#include <asm/pio-regs.h>

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#include <asm/cpu-regs.h>

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#include <asm/exceptions.h>

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#define ASB2305_7SEGLEDS	__SYSREG(0xA6F90000, u32)

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/* perform a hard reset by driving PIO06 low */

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#define mn10300_unit_hard_reset()		\

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do {						\

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	P0OUT &= 0xbf;				\

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	P0MD = (P0MD & P0MD_6) | P0MD_6_OUT;	\

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} while (0)

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/*

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 * use the 7-segment LEDs to indicate states

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 */

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/* indicate double-fault by displaying "db-f" on the LEDs */

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#define mn10300_set_dbfleds			\

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	mov	0x43077f1d,d0		;	\

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	mov	d0,(ASB2305_7SEGLEDS)

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/* flip the 7-segment LEDs between "Gdb-" and "----" */

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#define mn10300_set_gdbleds(ONOFF)				\

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do {								\

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	ASB2305_7SEGLEDS = (ONOFF) ? 0x8543077f : 0x7f7f7f7f;	\

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} while (0)

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#ifndef __ASSEMBLY__

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extern void peripheral_leds_display_exception(enum exception_code);

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extern void peripheral_leds_led_chase(void);

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extern void peripheral_leds7x4_display_dec(unsigned int, unsigned int);

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extern void peripheral_leds7x4_display_hex(unsigned int, unsigned int);

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extern void peripheral_leds7x4_display_minssecs(unsigned int, unsigned int);

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extern void peripheral_leds7x4_display_rtc(void);

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#endif /* __ASSEMBLY__ */

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#endif /* _ASM_UNIT_LEDS_H */

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