diff options
Diffstat (limited to 'arch/i386/mach-voyager/voyager_thread.c')
| -rw-r--r-- | arch/i386/mach-voyager/voyager_thread.c | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/arch/i386/mach-voyager/voyager_thread.c b/arch/i386/mach-voyager/voyager_thread.c deleted file mode 100644 index a9341b0eebf..00000000000 --- a/arch/i386/mach-voyager/voyager_thread.c +++ /dev/null @@ -1,166 +0,0 @@ -/* -*- mode: c; c-basic-offset: 8 -*- */ - -/* Copyright (C) 2001 - * - * Author: J.E.J.Bottomley@HansenPartnership.com - * - * linux/arch/i386/kernel/voyager_thread.c - * - * This module provides the machine status monitor thread for the - * voyager architecture. This allows us to monitor the machine - * environment (temp, voltage, fan function) and the front panel and - * internal UPS. If a fault is detected, this thread takes corrective - * action (usually just informing init) - * */ - -#include <linux/module.h> -#include <linux/config.h> -#include <linux/mm.h> -#include <linux/kernel_stat.h> -#include <linux/delay.h> -#include <linux/mc146818rtc.h> -#include <linux/smp_lock.h> -#include <linux/init.h> -#include <linux/bootmem.h> -#include <linux/kmod.h> -#include <linux/completion.h> -#include <linux/sched.h> -#include <asm/desc.h> -#include <asm/voyager.h> -#include <asm/vic.h> -#include <asm/mtrr.h> -#include <asm/msr.h> - -#include <linux/irq.h> - -#define THREAD_NAME "kvoyagerd" - -/* external variables */ -int kvoyagerd_running = 0; -DECLARE_MUTEX_LOCKED(kvoyagerd_sem); - -static int thread(void *); - -static __u8 set_timeout = 0; - -/* Start the machine monitor thread. Return 1 if OK, 0 if fail */ -static int __init -voyager_thread_start(void) -{ - if(kernel_thread(thread, NULL, CLONE_KERNEL) < 0) { - /* This is serious, but not fatal */ - printk(KERN_ERR "Voyager: Failed to create system monitor thread!!!\n"); - return 1; - } - return 0; -} - -static int -execute(const char *string) -{ - int ret; - - char *envp[] = { - "HOME=/", - "TERM=linux", - "PATH=/sbin:/usr/sbin:/bin:/usr/bin", - NULL, - }; - char *argv[] = { - "/bin/bash", - "-c", - (char *)string, - NULL, - }; - - if ((ret = call_usermodehelper(argv[0], argv, envp, 1)) != 0) { - printk(KERN_ERR "Voyager failed to run \"%s\": %i\n", - string, ret); - } - return ret; -} - -static void -check_from_kernel(void) -{ - if(voyager_status.switch_off) { - - /* FIXME: This should be configureable via proc */ - execute("umask 600; echo 0 > /etc/initrunlvl; kill -HUP 1"); - } else if(voyager_status.power_fail) { - VDEBUG(("Voyager daemon detected AC power failure\n")); - - /* FIXME: This should be configureable via proc */ - execute("umask 600; echo F > /etc/powerstatus; kill -PWR 1"); - set_timeout = 1; - } -} - -static void -check_continuing_condition(void) -{ - if(voyager_status.power_fail) { - __u8 data; - voyager_cat_psi(VOYAGER_PSI_SUBREAD, - VOYAGER_PSI_AC_FAIL_REG, &data); - if((data & 0x1f) == 0) { - /* all power restored */ - printk(KERN_NOTICE "VOYAGER AC power restored, cancelling shutdown\n"); - /* FIXME: should be user configureable */ - execute("umask 600; echo O > /etc/powerstatus; kill -PWR 1"); - set_timeout = 0; - } - } -} - -static void -wakeup(unsigned long unused) -{ - up(&kvoyagerd_sem); -} - -static int -thread(void *unused) -{ - struct timer_list wakeup_timer; - - kvoyagerd_running = 1; - - daemonize(THREAD_NAME); - - set_timeout = 0; - - init_timer(&wakeup_timer); - - sigfillset(¤t->blocked); - current->signal->tty = NULL; - - printk(KERN_NOTICE "Voyager starting monitor thread\n"); - - for(;;) { - down_interruptible(&kvoyagerd_sem); - VDEBUG(("Voyager Daemon awoken\n")); - if(voyager_status.request_from_kernel == 0) { - /* probably awoken from timeout */ - check_continuing_condition(); - } else { - check_from_kernel(); - voyager_status.request_from_kernel = 0; - } - if(set_timeout) { - del_timer(&wakeup_timer); - wakeup_timer.expires = HZ + jiffies; - wakeup_timer.function = wakeup; - add_timer(&wakeup_timer); - } - } -} - -static void __exit -voyager_thread_stop(void) -{ - /* FIXME: do nothing at the moment */ -} - -module_init(voyager_thread_start); -//module_exit(voyager_thread_stop); |