include/asm-ia64/sn/leds.h

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  * Copyright (C) 2000-2004 Silicon Graphics, Inc. All rights reserved.
   6  */
   7 #ifndef _ASM_IA64_SN_LEDS_H
   8 #define _ASM_IA64_SN_LEDS_H
   9
  10 #include <asm/sn/addrs.h>
  11 #include <asm/sn/pda.h>
  12 #include <asm/sn/shub_mmr.h>
  13
  14 #define LED0            (LOCAL_MMR_ADDR(SH_REAL_JUNK_BUS_LED0))
  15 #define LED_CPU_SHIFT   16
  16
  17 #define LED_CPU_HEARTBEAT       0x01
  18 #define LED_CPU_ACTIVITY        0x02
  19 #define LED_ALWAYS_SET          0x00
  20
  21 /*
  22  * Basic macros for flashing the LEDS on an SGI SN.
  23  */
  24
  25 static __inline__ void
  26 set_led_bits(u8 value, u8 mask)
  27 {
  28         pda->led_state = (pda->led_state & ~mask) | (value & mask);
  29         *pda->led_address = (short) pda->led_state;
  30 }
  31
  32 #endif /* _ASM_IA64_SN_LEDS_H */
  33