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kernel/linux-rt-4.4.41/arch/mn10300/unit-asb2364/include/unit/leds.h 1.49 KB
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  /* Unit-specific leds
   *
   * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
   * Written by David Howells (dhowells@redhat.com)
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License
   * as published by the Free Software Foundation; either version
   * 2 of the License, or (at your option) any later version.
   */
  
  #ifndef _ASM_UNIT_LEDS_H
  #define _ASM_UNIT_LEDS_H
  
  #include <asm/pio-regs.h>
  #include <asm/cpu-regs.h>
  #include <asm/exceptions.h>
  
  #define MN10300_USE_7SEGLEDS	0
  
  #define ASB2364_7SEGLEDS	__SYSREG(0xA9001630, u32)
  
  /*
   * use the 7-segment LEDs to indicate states
   */
  
  #if MN10300_USE_7SEGLEDS
  /* flip the 7-segment LEDs between "Gdb-" and "----" */
  #define mn10300_set_gdbleds(ONOFF)					\
  	do {								\
  		ASB2364_7SEGLEDS = (ONOFF) ? 0x8543077f : 0x7f7f7f7f;	\
  	} while (0)
  #else
  #define mn10300_set_gdbleds(ONOFF) do {} while (0)
  #endif
  
  #if MN10300_USE_7SEGLEDS
  /* indicate double-fault by displaying "db-f" on the LEDs */
  #define mn10300_set_dbfleds			\
  	mov	0x43077f1d,d0		;	\
  	mov	d0,(ASB2364_7SEGLEDS)
  #else
  #define mn10300_set_dbfleds
  #endif
  
  #ifndef __ASSEMBLY__
  extern void peripheral_leds_display_exception(enum exception_code);
  extern void peripheral_leds_led_chase(void);
  extern void peripheral_leds7x4_display_dec(unsigned int, unsigned int);
  extern void peripheral_leds7x4_display_hex(unsigned int, unsigned int);
  extern void debug_to_serial(const char *, int);
  #endif /* __ASSEMBLY__ */
  
  #endif /* _ASM_UNIT_LEDS_H */