1 /*
2 *
3 *
4 * Copyright (c) 2003 Silicon Graphics, Inc. All Rights Reserved.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of version 2 of the GNU General Public License
8 * as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it would be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 *
14 * Further, this software is distributed without any warranty that it is
15 * free of the rightful claim of any third person regarding infringement
16 * or the like. Any license provided herein, whether implied or
17 * otherwise, applies only to this software file. Patent licenses, if
18 * any, provided herein do not apply to combinations of this program with
19 * other software, or any other product whatsoever.
20 *
21 * You should have received a copy of the GNU General Public
22 * License along with this program; if not, write the Free Software
23 * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
24 *
25 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
26 * Mountain View, CA 94043, or:
27 *
28 * http://www.sgi.com
29 *
30 * For further information regarding this notice, see:
31 *
32 * http://oss.sgi.com/projects/GenInfo/NoticeExplan
33 */
34
35 #include <asm/sn/pda.h>
36 #include <asm/sn/leds.h>
37
38 extern void sn_lb_int_war_check(void);
39 #define SN_LB_INT_WAR_INTERVAL 100
40
41 void
sn_timer_interrupt_extras(void)42 sn_timer_interrupt_extras(void)
43 {
44 /* LED blinking */
45 if (!pda.hb_count--) {
46 pda.hb_count = HZ/2;
47 set_led_bits(pda.hb_state ^= LED_CPU_HEARTBEAT, LED_CPU_HEARTBEAT);
48 }
49
50 if (enable_shub_wars_1_1()) {
51 /* Bugfix code for SHUB 1.1 */
52 if (pda.pio_shub_war_cam_addr)
53 *pda.pio_shub_war_cam_addr = 0x8000000000000010UL;
54 }
55 if (pda.sn_lb_int_war_ticks == 0)
56 sn_lb_int_war_check();
57 pda.sn_lb_int_war_ticks++;
58 if (pda.sn_lb_int_war_ticks >= SN_LB_INT_WAR_INTERVAL)
59 pda.sn_lb_int_war_ticks = 0;
60 }
61