1/*
2 * APM (Advanced Power Management) BIOS Device Driver
3 *
4 * Copyright (c) 1994 UKAI, Fumitoshi.
5 * Copyright (c) 1994-1995 by HOSOKAWA, Tatsumi <hosokawa@jp.FreeBSD.org>
6 * Copyright (c) 1996 Nate Williams <nate@FreeBSD.org>
7 * Copyright (c) 1997 Poul-Henning Kamp <phk@FreeBSD.org>
8 *
9 * This software may be used, modified, copied, and distributed, in
10 * both source and binary form provided that the above copyright and
11 * these terms are retained. Under no circumstances is the author
12 * responsible for the proper functioning of this software, nor does
13 * the author assume any responsibility for damages incurred with its
14 * use.
15 *
16 * Sep, 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
17 *
18 * $Id: apm.c,v 1.102 1999/08/22 19:51:33 peter Exp $
19 */
20
21#include <sys/param.h>
22#include <sys/systm.h>
23#include <sys/eventhandler.h>
24#include <sys/conf.h>
25#include <sys/kernel.h>
26#include <sys/time.h>
27#include <sys/reboot.h>
28#include <sys/bus.h>
29#include <sys/select.h>
30#include <sys/poll.h>
31#include <sys/fcntl.h>
32#include <sys/proc.h>
33#include <sys/uio.h>

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69 struct apmhook sc_suspend;
70 struct apmhook sc_resume;
71 struct selinfo sc_rsel;
72 int sc_flags;
73 int event_count;
74 int event_ptr;
75 struct apm_event_info event_list[APM_NEVENTS];
76 u_char event_filter[APM_NPMEV];
77};
78#define SCFLAG_ONORMAL 0x0000001
79#define SCFLAG_OCTL 0x0000002
80#define SCFLAG_OPEN (SCFLAG_ONORMAL|SCFLAG_OCTL)
81
82#define APMDEV(dev) (minor(dev)&0x0f)
83#define APMDEV_NORMAL 0
84#define APMDEV_CTL 8

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1118 apm_hook_establish(APM_HOOK_RESUME , &sc->sc_resume);
1119
1120 /* Power the system off using APM */
1121 EVENTHANDLER_REGISTER(shutdown_final, apm_power_off, NULL,
1122 SHUTDOWN_PRI_LAST);
1123
1124 sc->initialized = 1;
1125
1126 make_dev(&apm_cdevsw, 0, 0, 0, 0600, "apm");
1127 return 0;
1128}
1129
1130static int
1131apmopen(dev_t dev, int flag, int fmt, struct proc *p)
1132{
1133 struct apm_softc *sc = &apm_softc;
1134 int ctl = APMDEV(dev);

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