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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/mn10300/unit-asb2303/include/unit/leds.h
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/* ASB2303-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 ASB2303_GPIO0DEF	__SYSREG(0xDB000000, u32)

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#define ASB2303_7SEGLEDS	__SYSREG(0xDB000008, u32)

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/*

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 * use the 7-segment LEDs to indicate states

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 */

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

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#define mn10300_set_gdbleds(ONOFF)			\

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do {							\

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	ASB2303_7SEGLEDS = (ONOFF) ? 0x85 : 0x7f;	\

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} while (0)

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

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#define mn10300_set_dbfleds			\

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	mov	0x43,d0			;	\

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	movbu	d0,(ASB2303_7SEGLEDS)

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#ifndef __ASSEMBLY__

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extern void peripheral_leds_display_exception(enum exception_code code);

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extern void peripheral_leds_led_chase(void);

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extern void debug_to_serial(const char *p, int n);

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#endif /* __ASSEMBLY__ */

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#endif /* _ASM_UNIT_LEDS_H */

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