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60 lines
2.0 KiB
60 lines
2.0 KiB
/*
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*
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*
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* Copyright (c) 2005, 2006 Silicon Graphics, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* Further, this software is distributed without any warranty that it is
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* free of the rightful claim of any third person regarding infringement
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* or the like. Any license provided herein, whether implied or
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* otherwise, applies only to this software file. Patent licenses, if
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* any, provided herein do not apply to combinations of this program with
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* other software, or any other product whatsoever.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
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*
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* For further information regarding this notice, see:
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*
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* http://oss.sgi.com/projects/GenInfo/NoticeExplan
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*/
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#include <linux/interrupt.h>
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#include <asm/sn/pda.h>
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#include <asm/sn/leds.h>
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extern void sn_lb_int_war_check(void);
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extern irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs);
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#define SN_LB_INT_WAR_INTERVAL 100
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void sn_timer_interrupt(int irq, void *dev_id)
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{
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/* LED blinking */
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if (!pda->hb_count--) {
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pda->hb_count = HZ / 2;
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set_led_bits(pda->hb_state ^=
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LED_CPU_HEARTBEAT, LED_CPU_HEARTBEAT);
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}
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if (is_shub1()) {
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if (enable_shub_wars_1_1()) {
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/* Bugfix code for SHUB 1.1 */
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if (pda->pio_shub_war_cam_addr)
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*pda->pio_shub_war_cam_addr = 0x8000000000000010UL;
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}
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if (pda->sn_lb_int_war_ticks == 0)
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sn_lb_int_war_check();
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pda->sn_lb_int_war_ticks++;
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if (pda->sn_lb_int_war_ticks >= SN_LB_INT_WAR_INTERVAL)
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pda->sn_lb_int_war_ticks = 0;
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}
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}
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