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  *
6  * Copyright (c) 2001-2003 Silicon Graphics, Inc.  All rights reserved.
7  */
8 
9 #include <linux/config.h>
10 #include <asm/sn/leds.h>
11 #include <asm/sn/simulator.h>
12 
snidle(int state)13 void snidle(int state) {
14 	if (state) {
15 		if (pda.idle_flag == 0) {
16 			/*
17 			 * Turn the activity LED off.
18 			 */
19 			set_led_bits(0, LED_CPU_ACTIVITY);
20 		}
21 
22 #ifdef CONFIG_IA64_SGI_SN_SIM
23 		if (IS_RUNNING_ON_SIMULATOR())
24 			SIMULATOR_SLEEP();
25 #endif
26 
27 		pda.idle_flag = 1;
28 	} else {
29 		/*
30 		 * Turn the activity LED on.
31 		 */
32 		set_led_bits(LED_CPU_ACTIVITY, LED_CPU_ACTIVITY);
33 
34 		pda.idle_flag = 0;
35 	}
36 }
37