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leds.h
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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