Merge PC98 support.

1 files changed, 0 insertions, 1545 deletions

diff --git a/sys/pc98/apm/apm.c b/sys/pc98/apm/apm.c
deleted file mode 100644
index 48b2ce7..0000000
--- a/sys/pc98/apm/apm.c
+++ /dev/null
@@ -1,1545 +0,0 @@
-/*
- * APM (Advanced Power Management) BIOS Device Driver
- *
- * Copyright (c) 1994 UKAI, Fumitoshi.
- * Copyright (c) 1994-1995 by HOSOKAWA, Tatsumi <hosokawa@jp.FreeBSD.org>
- * Copyright (c) 1996 Nate Williams <nate@FreeBSD.org>
- * Copyright (c) 1997 Poul-Henning Kamp <phk@FreeBSD.org>
- *
- * This software may be used, modified, copied, and distributed, in
- * both source and binary form provided that the above copyright and
- * these terms are retained. Under no circumstances is the author
- * responsible for the proper functioning of this software, nor does
- * the author assume any responsibility for damages incurred with its
- * use.
- *
- * Sep, 1994	Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
- *
- * $FreeBSD$
- */
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/bus.h>
-#include <sys/conf.h>
-#include <sys/eventhandler.h>
-#include <sys/fcntl.h>
-#include <sys/kernel.h>
-#include <sys/poll.h>
-#include <sys/power.h>
-#include <sys/reboot.h>
-#include <sys/selinfo.h>
-#include <sys/signalvar.h>
-#include <sys/sysctl.h>
-#include <sys/syslog.h>
-#include <sys/time.h>
-#include <sys/uio.h>
-
-#include <machine/apm_bios.h>
-#include <machine/bus.h>
-#include <machine/clock.h>
-#include <machine/pc/bios.h>
-#include <machine/cpufunc.h>
-#include <machine/resource.h>
-#include <machine/segments.h>
-#include <machine/stdarg.h>
-#include <machine/vm86.h>
-
-#include <sys/rman.h>
-
-#include <vm/vm.h>
-#include <vm/pmap.h>
-#include <vm/vm_param.h>
-
-#include <pc98/apm/apm.h>
-
-/* Used by the apm_saver screen saver module */
-int apm_display(int newstate);
-struct apm_softc apm_softc;
-
-static void apm_resume(void);
-static int apm_bioscall(void);
-static int apm_check_function_supported(u_int version, u_int func);
-
-static int apm_pm_func(u_long, void*, ...);
-
-static u_long	apm_version;
-
-int	apm_evindex;
-
-#define	SCFLAG_ONORMAL	0x0000001
-#define	SCFLAG_OCTL	0x0000002
-#define	SCFLAG_OPEN	(SCFLAG_ONORMAL|SCFLAG_OCTL)
-
-#define APMDEV(dev)	(minor(dev)&0x0f)
-#define APMDEV_NORMAL	0
-#define APMDEV_CTL	8
-
-#ifdef PC98
-extern int bios32_apm98(struct bios_regs *, u_int, u_short);
-
-/* PC98's SMM definition */
-#define	APM_NECSMM_PORT		0x6b8e
-#define	APM_NECSMM_PORTSZ	1
-#define	APM_NECSMM_EN		0x10
-static __inline void apm_enable_smm(struct apm_softc *);
-static __inline void apm_disable_smm(struct apm_softc *);
-int apm_necsmm_addr;
-u_int32_t apm_necsmm_mask;
-#endif
-
-static struct apmhook	*hook[NAPM_HOOK];		/* XXX */
-
-#define is_enabled(foo) ((foo) ? "enabled" : "disabled")
-
-/* Map version number to integer (keeps ordering of version numbers) */
-#define INTVERSION(major, minor)	((major)*100 + (minor))
-
-static struct callout_handle apm_timeout_ch = 
-    CALLOUT_HANDLE_INITIALIZER(&apm_timeout_ch);
-
-static timeout_t apm_timeout;
-static d_open_t apmopen;
-static d_close_t apmclose;
-static d_write_t apmwrite;
-static d_ioctl_t apmioctl;
-static d_poll_t apmpoll;
-
-#define CDEV_MAJOR 39
-static struct cdevsw apm_cdevsw = {
-	.d_open =	apmopen,
-	.d_close =	apmclose,
-	.d_write =	apmwrite,
-	.d_ioctl =	apmioctl,
-	.d_poll =	apmpoll,
-	.d_name =	"apm",
-	.d_maj =	CDEV_MAJOR,
-};
-
-static int apm_suspend_delay = 1;
-static int apm_standby_delay = 1;
-static int apm_debug = 0;
-
-#define APM_DPRINT(args...) do	{					\
-	if (apm_debug) {						\
-		printf(args);						\
-	}								\
-} while (0)
-
-SYSCTL_INT(_machdep, OID_AUTO, apm_suspend_delay, CTLFLAG_RW, &apm_suspend_delay, 1, "");
-SYSCTL_INT(_machdep, OID_AUTO, apm_standby_delay, CTLFLAG_RW, &apm_standby_delay, 1, "");
-SYSCTL_INT(_debug, OID_AUTO, apm_debug, CTLFLAG_RW, &apm_debug, 0, "");
-
-#ifdef PC98
-static __inline void
-apm_enable_smm(sc)
-	struct apm_softc *sc;
-{
-	bus_space_tag_t iot = sc->sc_iot;
-	bus_space_handle_t ioh = sc->sc_ioh;
-	if (apm_necsmm_addr != 0)
-		bus_space_write_1(iot, ioh, 0,
-			  (bus_space_read_1(iot, ioh, 0) | ~apm_necsmm_mask));
-}
-
-static __inline void
-apm_disable_smm(sc)
-	struct apm_softc *sc;
-{
-	bus_space_tag_t iot = sc->sc_iot;
-	bus_space_handle_t ioh = sc->sc_ioh;
-	if (apm_necsmm_addr != 0)
-		bus_space_write_1(iot, ioh, 0,
-			  (bus_space_read_1(iot, ioh, 0) & apm_necsmm_mask));
-}
-#endif
-
-/*
- * return  0 if the function successfull,
- * return  1 if the function unsuccessfull,
- * return -1 if the function unsupported.
- */
-static int
-apm_bioscall(void)
-{
-	struct apm_softc *sc = &apm_softc;
-	int errno = 0;
-	u_int apm_func = sc->bios.r.eax & 0xff;
-
-	if (!apm_check_function_supported(sc->intversion, apm_func)) {
-		APM_DPRINT("apm_bioscall: function 0x%x is not supported in v%d.%d\n",
-		    apm_func, sc->majorversion, sc->minorversion);
-		return (-1);
-	}
-
-	sc->bios_busy = 1;
-#ifdef	PC98
-	set_bios_selectors(&sc->bios.seg, BIOSCODE_FLAG | BIOSDATA_FLAG);
-	if (bios32_apm98(&sc->bios.r, sc->bios.entry,
-	    GSEL(GBIOSCODE32_SEL, SEL_KPL)) != 0)
-		return 1;
-#else
-	if (sc->connectmode == APM_PROT32CONNECT) {
-		set_bios_selectors(&sc->bios.seg,
-				   BIOSCODE_FLAG | BIOSDATA_FLAG);
-		errno = bios32(&sc->bios.r,
-			       sc->bios.entry, GSEL(GBIOSCODE32_SEL, SEL_KPL));
-	} else {
-		errno = bios16(&sc->bios, NULL);
-	}
-#endif
-	sc->bios_busy = 0;
-	return (errno);
-}
-
-/* check whether APM function is supported (1)  or not (0). */
-static int
-apm_check_function_supported(u_int version, u_int func)
-{
-	/* except driver version */
-	if (func == APM_DRVVERSION) {
-		return (1);
-	}
-#ifdef PC98
-	if (func == APM_GETPWSTATUS) {
-		return (1);
-	}
-#endif
-
-	switch (version) {
-	case INTVERSION(1, 0):
-		if (func > APM_GETPMEVENT) {
-			return (0); /* not supported */
-		}
-		break;
-	case INTVERSION(1, 1):
-		if (func > APM_ENGAGEDISENGAGEPM &&
-		    func < APM_OEMFUNC) {
-			return (0); /* not supported */
-		}
-		break;
-	case INTVERSION(1, 2):
-		break;
-	}
-
-	return (1); /* supported */
-}
-
-/* enable/disable power management */
-static int
-apm_enable_disable_pm(int enable)
-{
-	struct apm_softc *sc = &apm_softc;
-
-	sc->bios.r.eax = (APM_BIOS << 8) | APM_ENABLEDISABLEPM;
-
-	if (sc->intversion >= INTVERSION(1, 1))
-		sc->bios.r.ebx  = PMDV_ALLDEV;
-	else
-		sc->bios.r.ebx  = 0xffff;	/* APM version 1.0 only */
-	sc->bios.r.ecx  = enable;
-	sc->bios.r.edx = 0;
-	return (apm_bioscall());
-}
-
-/* register driver version (APM 1.1 or later) */
-static int
-apm_driver_version(int version)
-{
-	struct apm_softc *sc = &apm_softc;
- 
-	sc->bios.r.eax = (APM_BIOS << 8) | APM_DRVVERSION;
-	sc->bios.r.ebx  = 0x0;
-	sc->bios.r.ecx  = version;
-	sc->bios.r.edx = 0;
-
-	if (apm_bioscall() == 0 && sc->bios.r.eax == version)
-		return (0);
-
-	/* Some old BIOSes don't return the connection version in %ax. */
-	if (sc->bios.r.eax == ((APM_BIOS << 8) | APM_DRVVERSION))
-		return (0);
-
-	return (1);
-}
- 
-/* engage/disengage power management (APM 1.1 or later) */
-static int
-apm_engage_disengage_pm(int engage)
-{
-	struct apm_softc *sc = &apm_softc;
- 
-	sc->bios.r.eax = (APM_BIOS << 8) | APM_ENGAGEDISENGAGEPM;
-	sc->bios.r.ebx = PMDV_ALLDEV;
-	sc->bios.r.ecx = engage;
-	sc->bios.r.edx = 0;
-	return (apm_bioscall());
-}
- 
-/* get PM event */
-static u_int
-apm_getevent(void)
-{
-	struct apm_softc *sc = &apm_softc;
- 
-	sc->bios.r.eax = (APM_BIOS << 8) | APM_GETPMEVENT;
- 
-	sc->bios.r.ebx = 0;
-	sc->bios.r.ecx = 0;
-	sc->bios.r.edx = 0;
-	if (apm_bioscall())
-		return (PMEV_NOEVENT);
-	return (sc->bios.r.ebx & 0xffff);
-}
- 
-/* suspend entire system */
-static int
-apm_suspend_system(int state)
-{
-	struct apm_softc *sc = &apm_softc;
- 
-	sc->bios.r.eax = (APM_BIOS << 8) | APM_SETPWSTATE;
-	sc->bios.r.ebx = PMDV_ALLDEV;
-	sc->bios.r.ecx = state;
-	sc->bios.r.edx = 0;
- 
-#ifdef PC98
-	apm_disable_smm(sc);
-#endif
-	if (apm_bioscall()) {
- 		printf("Entire system suspend failure: errcode = %d\n",
-		       0xff & (sc->bios.r.eax >> 8));
- 		return 1;
- 	}
-#ifdef PC98
-	apm_enable_smm(sc);
-#endif
- 	return 0;
-}
-
-/* Display control */
-/*
- * Experimental implementation: My laptop machine can't handle this function
- * If your laptop can control the display via APM, please inform me.
- *                            HOSOKAWA, Tatsumi <hosokawa@jp.FreeBSD.org>
- */
-int
-apm_display(int newstate)
-{
-	struct apm_softc *sc = &apm_softc;
- 
-	sc->bios.r.eax = (APM_BIOS << 8) | APM_SETPWSTATE;
-	sc->bios.r.ebx = PMDV_DISP0;
-	sc->bios.r.ecx = newstate ? PMST_APMENABLED:PMST_SUSPEND;
-	sc->bios.r.edx = 0;
-	if (apm_bioscall() == 0) {
-		return 0;
- 	}
-
-	/* If failed, then try to blank all display devices instead. */
-	sc->bios.r.eax = (APM_BIOS << 8) | APM_SETPWSTATE;
-	sc->bios.r.ebx = PMDV_DISPALL;	/* all display devices */
-	sc->bios.r.ecx = newstate ? PMST_APMENABLED:PMST_SUSPEND;
-	sc->bios.r.edx = 0;
-	if (apm_bioscall() == 0) {
-		return 0;
- 	}
- 	printf("Display off failure: errcode = %d\n",
-	       0xff & (sc->bios.r.eax >> 8));
- 	return 1;
-}
-
-/*
- * Turn off the entire system.
- */
-static void
-apm_power_off(void *junk, int howto)
-{
-	struct apm_softc *sc = &apm_softc;
-
-	/* Not halting powering off, or not active */
-	if (!(howto & RB_POWEROFF) || !apm_softc.active)
-		return;
-	sc->bios.r.eax = (APM_BIOS << 8) | APM_SETPWSTATE;
-	sc->bios.r.ebx = PMDV_ALLDEV;
-	sc->bios.r.ecx = PMST_OFF;
-	sc->bios.r.edx = 0;
-	(void) apm_bioscall();
-}
-
-/* APM Battery low handler */
-static void
-apm_battery_low(void)
-{
-	printf("\007\007 * * * BATTERY IS LOW * * * \007\007");
-}
-
-/* APM hook manager */
-static struct apmhook *
-apm_add_hook(struct apmhook **list, struct apmhook *ah)
-{
-	int s;
-	struct apmhook *p, *prev;
-
-	APM_DPRINT("Add hook \"%s\"\n", ah->ah_name);
-
-	s = splhigh();
-	if (ah == NULL)
-		panic("illegal apm_hook!");
-	prev = NULL;
-	for (p = *list; p != NULL; prev = p, p = p->ah_next)
-		if (p->ah_order > ah->ah_order)
-			break;
-
-	if (prev == NULL) {
-		ah->ah_next = *list;
-		*list = ah;
-	} else {
-		ah->ah_next = prev->ah_next;
-		prev->ah_next = ah;
-	}
-	splx(s);
-	return ah;
-}
-
-static void
-apm_del_hook(struct apmhook **list, struct apmhook *ah)
-{
-	int s;
-	struct apmhook *p, *prev;
-
-	s = splhigh();
-	prev = NULL;
-	for (p = *list; p != NULL; prev = p, p = p->ah_next)
-		if (p == ah)
-			goto deleteit;
-	panic("Tried to delete unregistered apm_hook.");
-	goto nosuchnode;
-deleteit:
-	if (prev != NULL)
-		prev->ah_next = p->ah_next;
-	else
-		*list = p->ah_next;
-nosuchnode:
-	splx(s);
-}
-
-
-/* APM driver calls some functions automatically */
-static void
-apm_execute_hook(struct apmhook *list)
-{
-	struct apmhook *p;
-
-	for (p = list; p != NULL; p = p->ah_next) {
-		APM_DPRINT("Execute APM hook \"%s.\"\n", p->ah_name);
-		if ((*(p->ah_fun))(p->ah_arg))
-			printf("Warning: APM hook \"%s\" failed", p->ah_name);
-	}
-}
-
-
-/* establish an apm hook */
-struct apmhook *
-apm_hook_establish(int apmh, struct apmhook *ah)
-{
-	if (apmh < 0 || apmh >= NAPM_HOOK)
-		return NULL;
-
-	return apm_add_hook(&hook[apmh], ah);
-}
-
-/* disestablish an apm hook */
-void
-apm_hook_disestablish(int apmh, struct apmhook *ah)
-{
-	if (apmh < 0 || apmh >= NAPM_HOOK)
-		return;
-
-	apm_del_hook(&hook[apmh], ah);
-}
-
-static int apm_record_event(struct apm_softc *, u_int);
-static void apm_processevent(void);
-
-static u_int apm_op_inprog = 0;
-
-static void
-apm_do_suspend(void)
-{
-	struct apm_softc *sc = &apm_softc;
-	int error;
-
-	if (!sc)
-		return;
-
-	apm_op_inprog = 0;
-	sc->suspends = sc->suspend_countdown = 0;
-
-	if (sc->initialized) {
-		error = DEVICE_SUSPEND(root_bus);
-		if (error) {
-			DEVICE_RESUME(root_bus);
-		} else {
-			apm_execute_hook(hook[APM_HOOK_SUSPEND]);
-			if (apm_suspend_system(PMST_SUSPEND) == 0) {
-				sc->suspending = 1;
-				apm_processevent();
-			} else {
-				/* Failure, 'resume' the system again */
-				apm_execute_hook(hook[APM_HOOK_RESUME]);
-				DEVICE_RESUME(root_bus);
-			}
-		}
-	}
-}
-
-static void
-apm_do_standby(void)
-{
-	struct apm_softc *sc = &apm_softc;
-
-	if (!sc)
-		return;
-
-	apm_op_inprog = 0;
-	sc->standbys = sc->standby_countdown = 0;
-
-	if (sc->initialized) {
-		/*
-		 * As far as standby, we don't need to execute 
-		 * all of suspend hooks.
-		 */
-		if (apm_suspend_system(PMST_STANDBY) == 0)
-			apm_processevent();
-	}
-}
-
-static void
-apm_lastreq_notify(void)
-{
-	struct apm_softc *sc = &apm_softc;
-
-	sc->bios.r.eax = (APM_BIOS << 8) | APM_SETPWSTATE;
-	sc->bios.r.ebx = PMDV_ALLDEV;
-	sc->bios.r.ecx = PMST_LASTREQNOTIFY;
-	sc->bios.r.edx = 0;
-	apm_bioscall();
-}
-
-static int
-apm_lastreq_rejected(void)
-{
-	struct apm_softc *sc = &apm_softc;
-
-	if (apm_op_inprog == 0) {
-		return 1;	/* no operation in progress */
-	}
-
-	sc->bios.r.eax = (APM_BIOS << 8) | APM_SETPWSTATE;
-	sc->bios.r.ebx = PMDV_ALLDEV;
-	sc->bios.r.ecx = PMST_LASTREQREJECT;
-	sc->bios.r.edx = 0;
-
-	if (apm_bioscall()) {
-		APM_DPRINT("apm_lastreq_rejected: failed\n");
-		return 1;
-	}
-	apm_op_inprog = 0;
-	return 0;
-}
-
-/*
- * Public interface to the suspend/resume:
- *
- * Execute suspend and resume hook before and after sleep, respectively.
- *
- */
-
-void
-apm_suspend(int state)
-{
-	struct apm_softc *sc = &apm_softc;
-
-	if (!sc->initialized)
-		return;
-
-	switch (state) {
-	case PMST_SUSPEND:
-		if (sc->suspends)
-			return;
-		sc->suspends++;
-		sc->suspend_countdown = apm_suspend_delay;
-		break;
-	case PMST_STANDBY:
-		if (sc->standbys)
-			return;
-		sc->standbys++;
-		sc->standby_countdown = apm_standby_delay;
-		break;
-	default:
-		printf("apm_suspend: Unknown Suspend state 0x%x\n", state);
-		return;
-	}
-
-	apm_op_inprog++;
-	apm_lastreq_notify();
-}
-
-static void
-apm_resume(void)
-{
-	struct apm_softc *sc = &apm_softc;
-
-	if (!sc)
-		return;
-
-	if (sc->suspending == 0)
-		return;
-
-	sc->suspending = 0;
-	if (sc->initialized) {
-		apm_execute_hook(hook[APM_HOOK_RESUME]);
-		DEVICE_RESUME(root_bus);
-	}
-}
-
-
-/* get power status per battery */
-static int
-apm_get_pwstatus(apm_pwstatus_t app)
-{
-	struct apm_softc *sc = &apm_softc;
-
-	if (app->ap_device != PMDV_ALLDEV &&
-	    (app->ap_device < PMDV_BATT0 || app->ap_device > PMDV_BATT_ALL))
-		return 1;
-
-	sc->bios.r.eax = (APM_BIOS << 8) | APM_GETPWSTATUS;
-	sc->bios.r.ebx = app->ap_device;
-	sc->bios.r.ecx = 0;
-	sc->bios.r.edx = 0xffff;	/* default to unknown battery time */
-
-	if (apm_bioscall())
-		return 1;
-
-	app->ap_acline    = (sc->bios.r.ebx >> 8) & 0xff;
-	app->ap_batt_stat = sc->bios.r.ebx & 0xff;
-	app->ap_batt_flag = (sc->bios.r.ecx >> 8) & 0xff;
-	app->ap_batt_life = sc->bios.r.ecx & 0xff;
-	sc->bios.r.edx &= 0xffff;
-	if (sc->bios.r.edx == 0xffff)	/* Time is unknown */
-		app->ap_batt_time = -1;
-	else if (sc->bios.r.edx & 0x8000)	/* Time is in minutes */
-		app->ap_batt_time = (sc->bios.r.edx & 0x7fff) * 60;
-	else				/* Time is in seconds */
-		app->ap_batt_time = sc->bios.r.edx;
-
-	return 0;
-}
-
-
-/* get APM information */
-static int
-apm_get_info(apm_info_t aip)
-{
-	struct apm_softc *sc = &apm_softc;
-	struct apm_pwstatus aps;
-
-	bzero(&aps, sizeof(aps));
-	aps.ap_device = PMDV_ALLDEV;
-	if (apm_get_pwstatus(&aps))
-		return 1;
-
-	aip->ai_infoversion = 1;
-	aip->ai_acline      = aps.ap_acline;
-	aip->ai_batt_stat   = aps.ap_batt_stat;
-	aip->ai_batt_life   = aps.ap_batt_life;
-	aip->ai_batt_time   = aps.ap_batt_time;
-	aip->ai_major       = (u_int)sc->majorversion;
-	aip->ai_minor       = (u_int)sc->minorversion;
-	aip->ai_status      = (u_int)sc->active;
-
-	sc->bios.r.eax = (APM_BIOS << 8) | APM_GETCAPABILITIES;
-	sc->bios.r.ebx = 0;
-	sc->bios.r.ecx = 0;
-	sc->bios.r.edx = 0;
-	if (apm_bioscall()) {
-		aip->ai_batteries = -1;	/* Unknown */
-		aip->ai_capabilities = 0xff00; /* Unknown, with no bits set */
-	} else {
-		aip->ai_batteries = sc->bios.r.ebx & 0xff;
-		aip->ai_capabilities = sc->bios.r.ecx & 0xf;
-	}
-
-	bzero(aip->ai_spare, sizeof aip->ai_spare);
-
-	return 0;
-}
-
-
-/* inform APM BIOS that CPU is idle */
-void
-apm_cpu_idle(void)
-{
-	struct apm_softc *sc = &apm_softc;
-
-	if (sc->active) {
-
-		sc->bios.r.eax = (APM_BIOS <<8) | APM_CPUIDLE;
-		sc->bios.r.edx = sc->bios.r.ecx = sc->bios.r.ebx = 0;
-		(void) apm_bioscall();
-	}
-	/*
-	 * Some APM implementation halts CPU in BIOS, whenever
-	 * "CPU-idle" function are invoked, but swtch() of
-	 * FreeBSD halts CPU, therefore, CPU is halted twice
-	 * in the sched loop. It makes the interrupt latency
-	 * terribly long and be able to cause a serious problem
-	 * in interrupt processing. We prevent it by removing
-	 * "hlt" operation from swtch() and managed it under
-	 * APM driver.
-	 */
-	if (!sc->active || sc->always_halt_cpu)
-		halt();	/* wait for interrupt */
-}
-
-/* inform APM BIOS that CPU is busy */
-void
-apm_cpu_busy(void)
-{
-	struct apm_softc *sc = &apm_softc;
-
-	/*
-	 * The APM specification says this is only necessary if your BIOS
-	 * slows down the processor in the idle task, otherwise it's not
-	 * necessary.
-	 */
-	if (sc->slow_idle_cpu && sc->active) {
-
-		sc->bios.r.eax = (APM_BIOS <<8) | APM_CPUBUSY;
-		sc->bios.r.edx = sc->bios.r.ecx = sc->bios.r.ebx = 0;
-		apm_bioscall();
-	}
-}
-
-
-/*
- * APM timeout routine:
- *
- * This routine is automatically called by timer once per second.
- */
-
-static void
-apm_timeout(void *dummy)
-{
-	struct apm_softc *sc = &apm_softc;
-
-	if (apm_op_inprog)
-		apm_lastreq_notify();
-
-	if (sc->standbys && sc->standby_countdown-- <= 0)
-		apm_do_standby();
-
-	if (sc->suspends && sc->suspend_countdown-- <= 0)
-		apm_do_suspend();
-
-	if (!sc->bios_busy)
-		apm_processevent();
-
-	if (sc->active == 1)
-		/* Run slightly more oftan than 1 Hz */
-		apm_timeout_ch = timeout(apm_timeout, NULL, hz - 1);
-}
-
-/* enable APM BIOS */
-static void
-apm_event_enable(void)
-{
-	struct apm_softc *sc = &apm_softc;
-
-	APM_DPRINT("called apm_event_enable()\n");
-	if (sc->initialized) {
-		sc->active = 1;
-		apm_timeout(sc);
-	}
-}
-
-/* disable APM BIOS */
-static void
-apm_event_disable(void)
-{
-	struct apm_softc *sc = &apm_softc;
-
-	APM_DPRINT("called apm_event_disable()\n");
-	if (sc->initialized) {
-		untimeout(apm_timeout, NULL, apm_timeout_ch);
-		sc->active = 0;
-	}
-}
-
-/* halt CPU in scheduling loop */
-static void
-apm_halt_cpu(void)
-{
-	struct apm_softc *sc = &apm_softc;
-
-	if (sc->initialized)
-		sc->always_halt_cpu = 1;
-}
-
-/* don't halt CPU in scheduling loop */
-static void
-apm_not_halt_cpu(void)
-{
-	struct apm_softc *sc = &apm_softc;
-
-	if (sc->initialized)
-		sc->always_halt_cpu = 0;
-}
-
-/* device driver definitions */
-
-/*
- * Module event
- */
-
-static int
-apm_modevent(struct module *mod, int event, void *junk)
-{
-
-	switch (event) {
-	case MOD_LOAD:
-		if (!cold)
-			return (EPERM);
-		break;
-	case MOD_UNLOAD:
-		if (!cold && power_pm_get_type() == POWER_PM_TYPE_APM)
-			return (EBUSY);
-		break;
-	default:
-		break;
-	}
-
-	return (0);
-}
-
-/*
- * Create "connection point"
- */
-static void
-apm_identify(driver_t *driver, device_t parent)
-{
-	device_t child;
-
-	if (!cold) {
-		printf("Don't load this driver from userland!!\n");
-		return;
-	}
-
-	child = BUS_ADD_CHILD(parent, 0, "apm", 0);
-	if (child == NULL)
-		panic("apm_identify");
-}
-
-/*
- * probe for APM BIOS
- */
-static int
-apm_probe(device_t dev)
-{
-#define APM_KERNBASE	KERNBASE
-	struct vm86frame	vmf;
-	struct apm_softc	*sc = &apm_softc;
-	int			disabled, flags;
-#ifdef PC98
-	int			rid;
-#endif
-
-	device_set_desc(dev, "APM BIOS");
-
-	if (resource_int_value("apm", 0, "disabled", &disabled) != 0)
-		disabled = 0;
-	if (disabled)
-		return ENXIO;
-
-	if (device_get_unit(dev) > 0) {
-		printf("apm: Only one APM driver supported.\n");
-		return ENXIO;
-	}
-
-	if (power_pm_get_type() != POWER_PM_TYPE_NONE &&
-	    power_pm_get_type() != POWER_PM_TYPE_APM) {
-		printf("apm: Other PM system enabled.\n");
-		return ENXIO;
-	}
-
-	if (resource_int_value("apm", 0, "flags", &flags) != 0)
-		flags = 0;
-
-	bzero(&vmf, sizeof(struct vm86frame));		/* safety */
-	bzero(&apm_softc, sizeof(apm_softc));
-	vmf.vmf_ah = APM_BIOS;
-	vmf.vmf_al = APM_INSTCHECK;
-	vmf.vmf_bx = 0;
-	if (vm86_intcall(APM_INT, &vmf))
-		return ENXIO;			/* APM not found */
-	if (vmf.vmf_bx != 0x504d) {
-		printf("apm: incorrect signature (0x%x)\n", vmf.vmf_bx);
-		return ENXIO;
-	}
-	if ((vmf.vmf_cx & (APM_32BIT_SUPPORT | APM_16BIT_SUPPORT)) == 0) {
-		printf("apm: protected mode connections are not supported\n");
-		return ENXIO;
-	}
-
-	apm_version = vmf.vmf_ax;
-	sc->slow_idle_cpu = ((vmf.vmf_cx & APM_CPUIDLE_SLOW) != 0);
-	sc->disabled = ((vmf.vmf_cx & APM_DISABLED) != 0);
-	sc->disengaged = ((vmf.vmf_cx & APM_DISENGAGED) != 0);
-
-	vmf.vmf_ah = APM_BIOS;
-	vmf.vmf_al = APM_DISCONNECT;
-	vmf.vmf_bx = 0;
-        vm86_intcall(APM_INT, &vmf);		/* disconnect, just in case */
-
-#ifdef PC98
-	/* PC98 have bogos APM 32bit BIOS */
-	if ((vmf.vmf_cx & APM_32BIT_SUPPORT) == 0)
-		return ENXIO;
-	rid = 0;
-	bus_set_resource(dev, SYS_RES_IOPORT, rid,
-			 APM_NECSMM_PORT, APM_NECSMM_PORTSZ);
-	sc->sc_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
-			 APM_NECSMM_PORT, ~0, APM_NECSMM_PORTSZ, RF_ACTIVE);
-	if (sc->sc_res == NULL) {
-		printf("apm: cannot open NEC smm device\n");
-		return ENXIO;
-	}
-	bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_res);
-
-	vmf.vmf_ah = APM_BIOS;
-	vmf.vmf_al = APM_PROT32CONNECT;
-	vmf.vmf_bx = 0;
-	if (vm86_intcall(APM_INT, &vmf)) {
-		printf("apm: 32-bit connection error.\n");
-		return (ENXIO);
- 	}
-
-	sc->bios.seg.code32.base = (vmf.vmf_ax << 4) + APM_KERNBASE;
-	sc->bios.seg.code32.limit = 0xffff;
-	sc->bios.seg.code16.base = (vmf.vmf_cx << 4) + APM_KERNBASE;
-	sc->bios.seg.code16.limit = 0xffff;
-	sc->bios.seg.data.base = (vmf.vmf_dx << 4) + APM_KERNBASE;
-	sc->bios.seg.data.limit = 0xffff;
-	sc->bios.entry = vmf.vmf_ebx;
-	sc->connectmode = APM_PROT32CONNECT;
-#else
-	if ((vmf.vmf_cx & APM_32BIT_SUPPORT) != 0) {
-		vmf.vmf_ah = APM_BIOS;
-		vmf.vmf_al = APM_PROT32CONNECT;
-		vmf.vmf_bx = 0;
-		if (vm86_intcall(APM_INT, &vmf)) {
-			printf("apm: 32-bit connection error.\n");
-			return (ENXIO);
- 		}
-		sc->bios.seg.code32.base = (vmf.vmf_ax << 4) + APM_KERNBASE;
-		sc->bios.seg.code32.limit = 0xffff;
-		sc->bios.seg.code16.base = (vmf.vmf_cx << 4) + APM_KERNBASE;
-		sc->bios.seg.code16.limit = 0xffff;
-		sc->bios.seg.data.base = (vmf.vmf_dx << 4) + APM_KERNBASE;
-		sc->bios.seg.data.limit = 0xffff;
-		sc->bios.entry = vmf.vmf_ebx;
-		sc->connectmode = APM_PROT32CONNECT;
- 	} else {
-		/* use 16-bit connection */
-		vmf.vmf_ah = APM_BIOS;
-		vmf.vmf_al = APM_PROT16CONNECT;
-		vmf.vmf_bx = 0;
-		if (vm86_intcall(APM_INT, &vmf)) {
-			printf("apm: 16-bit connection error.\n");
-			return (ENXIO);
-		}
-		sc->bios.seg.code16.base = (vmf.vmf_ax << 4) + APM_KERNBASE;
-		sc->bios.seg.code16.limit = 0xffff;
-		sc->bios.seg.data.base = (vmf.vmf_cx << 4) + APM_KERNBASE;
-		sc->bios.seg.data.limit = 0xffff;
-		sc->bios.entry = vmf.vmf_bx;
-		sc->connectmode = APM_PROT16CONNECT;
-	}
-#endif
-	return(0);
-}
-
-
-/*
- * return 0 if the user will notice and handle the event,
- * return 1 if the kernel driver should do so.
- */
-static int
-apm_record_event(struct apm_softc *sc, u_int event_type)
-{
-	struct apm_event_info *evp;
-
-	if ((sc->sc_flags & SCFLAG_OPEN) == 0)
-		return 1;		/* no user waiting */
-	if (sc->event_count == APM_NEVENTS)
-		return 1;			/* overflow */
-	if (sc->event_filter[event_type] == 0)
-		return 1;		/* not registered */
-	evp = &sc->event_list[sc->event_ptr];
-	sc->event_count++;
-	sc->event_ptr++;
-	sc->event_ptr %= APM_NEVENTS;
-	evp->type = event_type;
-	evp->index = ++apm_evindex;
-	selwakeup(&sc->sc_rsel);
-	return (sc->sc_flags & SCFLAG_OCTL) ? 0 : 1; /* user may handle */
-}
-
-/* Power profile */
-static void
-apm_power_profile(struct apm_softc *sc)
-{
-	int state;
-	struct apm_info info;
-	static int apm_acline = 0;
-
-	if (apm_get_info(&info))
-		return;
-
-	if (apm_acline != info.ai_acline) {
-		apm_acline = info.ai_acline;
-		state = apm_acline ? POWER_PROFILE_PERFORMANCE : POWER_PROFILE_ECONOMY;
-		power_profile_set_state(state);
-	}
-}
-
-/* Process APM event */
-static void
-apm_processevent(void)
-{
-	int apm_event;
-	struct apm_softc *sc = &apm_softc;
-
-#define OPMEV_DEBUGMESSAGE(symbol) case symbol:				\
-	APM_DPRINT("Received APM Event: " #symbol "\n");
-
-	do {
-		apm_event = apm_getevent();
-		switch (apm_event) {
-		    OPMEV_DEBUGMESSAGE(PMEV_STANDBYREQ);
-			if (apm_op_inprog == 0) {
-			    apm_op_inprog++;
-			    if (apm_record_event(sc, apm_event)) {
-				apm_suspend(PMST_STANDBY);
-			    }
-			}
-			break;
-		    OPMEV_DEBUGMESSAGE(PMEV_USERSTANDBYREQ);
-			if (apm_op_inprog == 0) {
-			    apm_op_inprog++;
-			    if (apm_record_event(sc, apm_event)) {
-				apm_suspend(PMST_STANDBY);
-			    }
-			}
-			break;
-		    OPMEV_DEBUGMESSAGE(PMEV_SUSPENDREQ);
- 			apm_lastreq_notify();
-			if (apm_op_inprog == 0) {
-			    apm_op_inprog++;
-			    if (apm_record_event(sc, apm_event)) {
-				apm_do_suspend();
-			    }
-			}
-			return; /* XXX skip the rest */
-		    OPMEV_DEBUGMESSAGE(PMEV_USERSUSPENDREQ);
- 			apm_lastreq_notify();
-			if (apm_op_inprog == 0) {
-			    apm_op_inprog++;
-			    if (apm_record_event(sc, apm_event)) {
-				apm_do_suspend();
-			    }
-			}
-			return; /* XXX skip the rest */
-		    OPMEV_DEBUGMESSAGE(PMEV_CRITSUSPEND);
-			apm_do_suspend();
-			break;
-		    OPMEV_DEBUGMESSAGE(PMEV_NORMRESUME);
-			apm_record_event(sc, apm_event);
-			apm_resume();
-			break;
-		    OPMEV_DEBUGMESSAGE(PMEV_CRITRESUME);
-			apm_record_event(sc, apm_event);
-			apm_resume();
-			break;
-		    OPMEV_DEBUGMESSAGE(PMEV_STANDBYRESUME);
-			apm_record_event(sc, apm_event);
-			break;
-		    OPMEV_DEBUGMESSAGE(PMEV_BATTERYLOW);
-			if (apm_record_event(sc, apm_event)) {
-			    apm_battery_low();
-			    apm_suspend(PMST_SUSPEND);
-			}
-			break;
-		    OPMEV_DEBUGMESSAGE(PMEV_POWERSTATECHANGE);
-			apm_record_event(sc, apm_event);
-			apm_power_profile(sc);
-			break;
-		    OPMEV_DEBUGMESSAGE(PMEV_UPDATETIME);
-			apm_record_event(sc, apm_event);
-			inittodr(0);	/* adjust time to RTC */
-			break;
-		    OPMEV_DEBUGMESSAGE(PMEV_CAPABILITIESCHANGE);
-			apm_record_event(sc, apm_event);
-			apm_power_profile(sc);
-			break;
-		    case PMEV_NOEVENT:
-			break;
-		    default:
-			printf("Unknown Original APM Event 0x%x\n", apm_event);
-			    break;
-		}
-	} while (apm_event != PMEV_NOEVENT);
-#ifdef PC98
-	apm_disable_smm(sc);
-#endif
-}
-
-/*
- * Attach APM:
- *
- * Initialize APM driver
- */
-
-static int
-apm_attach(device_t dev)
-{
-	struct apm_softc	*sc = &apm_softc;
-	int			flags;
-	int			drv_version;
-#ifdef PC98
-	int			rid;
-#endif
-
-	if (resource_int_value("apm", 0, "flags", &flags) != 0)
-		flags = 0;
-
-	if (flags & 0x20)
-		statclock_disable = 1;
-
-	sc->initialized = 0;
-
-	/* Must be externally enabled */
-	sc->active = 0;
-
-	/* Always call HLT in idle loop */
-	sc->always_halt_cpu = 1;
-
-	getenv_int("debug.apm_debug", &apm_debug);
-
-	/* print bootstrap messages */
-	APM_DPRINT("apm: APM BIOS version %04lx\n",  apm_version);
-	APM_DPRINT("apm: Code16 0x%08x, Data 0x%08x\n",
-	    sc->bios.seg.code16.base, sc->bios.seg.data.base);
-	APM_DPRINT("apm: Code entry 0x%08x, Idling CPU %s, Management %s\n",
-	    sc->bios.entry, is_enabled(sc->slow_idle_cpu),
-	    is_enabled(!sc->disabled));
-	APM_DPRINT("apm: CS_limit=0x%x, DS_limit=0x%x\n",
-	    sc->bios.seg.code16.limit, sc->bios.seg.data.limit);
-
-#ifdef PC98
-	rid = 0;
-	sc->sc_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
-			 APM_NECSMM_PORT, ~0, APM_NECSMM_PORTSZ, RF_ACTIVE);
-	if (sc->sc_res == NULL)
-		panic("%s: counldn't map I/O ports", device_get_name(dev));
-	sc->sc_iot = rman_get_bustag(sc->sc_res);
-	sc->sc_ioh = rman_get_bushandle(sc->sc_res);
-
-	if (apm_version==0x112 || apm_version==0x111 || apm_version==0x110)
-		apm_necsmm_addr = APM_NECSMM_PORT;
-	else
-		apm_necsmm_addr = 0;
-	apm_necsmm_mask = ~APM_NECSMM_EN;
-#endif /* PC98 */
-
-	/*
-         * In one test, apm bios version was 1.02; an attempt to register
-         * a 1.04 driver resulted in a 1.00 connection!  Registering a
-         * 1.02 driver resulted in a 1.02 connection.
-         */
-	drv_version = apm_version > 0x102 ? 0x102 : apm_version;
-	for (; drv_version > 0x100; drv_version--)
-		if (apm_driver_version(drv_version) == 0)
-			break;
-	sc->minorversion = ((drv_version & 0x00f0) >>  4) * 10 +
-		((drv_version & 0x000f) >> 0);
-	sc->majorversion = ((drv_version & 0xf000) >> 12) * 10 +
-		((apm_version & 0x0f00) >> 8);
-
-	sc->intversion = INTVERSION(sc->majorversion, sc->minorversion);
-
-	if (sc->intversion >= INTVERSION(1, 1))
-		APM_DPRINT("apm: Engaged control %s\n", is_enabled(!sc->disengaged));
-	device_printf(dev, "found APM BIOS v%ld.%ld, connected at v%d.%d\n",
-	       ((apm_version & 0xf000) >> 12) * 10 + ((apm_version & 0x0f00) >> 8),
-	       ((apm_version & 0x00f0) >> 4) * 10 + ((apm_version & 0x000f) >> 0),
-	       sc->majorversion, sc->minorversion);
-
-
-	APM_DPRINT("apm: Slow Idling CPU %s\n", is_enabled(sc->slow_idle_cpu));
-	/* enable power management */
-	if (sc->disabled) {
-		if (apm_enable_disable_pm(1)) {
-			APM_DPRINT("apm: *Warning* enable function failed! [%x]\n",
-			    (sc->bios.r.eax >> 8) & 0xff);
-		}
-	}
-
-	/* engage power managment (APM 1.1 or later) */
-	if (sc->intversion >= INTVERSION(1, 1) && sc->disengaged) {
-		if (apm_engage_disengage_pm(1)) {
-			APM_DPRINT("apm: *Warning* engage function failed err=[%x]",
-			    (sc->bios.r.eax >> 8) & 0xff);
-			APM_DPRINT(" (Docked or using external power?).\n");
-		}
-	}
-
-	/* Power the system off using APM */
-	EVENTHANDLER_REGISTER(shutdown_final, apm_power_off, NULL, 
-			      SHUTDOWN_PRI_LAST);
-
-	/* Register APM again to pass the correct argument of pm_func. */
-	power_pm_register(POWER_PM_TYPE_APM, apm_pm_func, sc);
-
-	sc->initialized = 1;
-	sc->suspending = 0;
-
-	make_dev(&apm_cdevsw, 0, 0, 5, 0664, "apm");
-	make_dev(&apm_cdevsw, 8, 0, 5, 0660, "apmctl");
-	return 0;
-}
-
-static int
-apmopen(dev_t dev, int flag, int fmt, struct thread *td)
-{
-	struct apm_softc *sc = &apm_softc;
-	int ctl = APMDEV(dev);
-
-	if (!sc->initialized)
-		return (ENXIO);
-
-	switch (ctl) {
-	case APMDEV_CTL:
-		if (!(flag & FWRITE))
-			return EINVAL;
-		if (sc->sc_flags & SCFLAG_OCTL)
-			return EBUSY;
-		sc->sc_flags |= SCFLAG_OCTL;
-		bzero(sc->event_filter, sizeof sc->event_filter);
-		break;
-	case APMDEV_NORMAL:
-		sc->sc_flags |= SCFLAG_ONORMAL;
-		break;
-	default:
-		return ENXIO;
-		break;
-	}
-	return 0;
-}
-
-static int
-apmclose(dev_t dev, int flag, int fmt, struct thread *td)
-{
-	struct apm_softc *sc = &apm_softc;
-	int ctl = APMDEV(dev);
-
-	switch (ctl) {
-	case APMDEV_CTL:
-		apm_lastreq_rejected();
-		sc->sc_flags &= ~SCFLAG_OCTL;
-		bzero(sc->event_filter, sizeof sc->event_filter);
-		break;
-	case APMDEV_NORMAL:
-		sc->sc_flags &= ~SCFLAG_ONORMAL;
-		break;
-	}
-	if ((sc->sc_flags & SCFLAG_OPEN) == 0) {
-		sc->event_count = 0;
-		sc->event_ptr = 0;
-	}
-	return 0;
-}
-
-static int
-apmioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
-{
-	struct apm_softc *sc = &apm_softc;
-	struct apm_bios_arg *args;
-	int error = 0;
-	int ret;
-	int newstate;
-
-	if (!sc->initialized)
-		return (ENXIO);
-	APM_DPRINT("APM ioctl: cmd = 0x%lx\n", cmd);
-	switch (cmd) {
-	case APMIO_SUSPEND:
-		if (!(flag & FWRITE))
-			return (EPERM);
-		if (sc->active)
-			apm_suspend(PMST_SUSPEND);
-		else
-			error = EINVAL;
-		break;
-
-	case APMIO_STANDBY:
-		if (!(flag & FWRITE))
-			return (EPERM);
-		if (sc->active)
-			apm_suspend(PMST_STANDBY);
-		else
-			error = EINVAL;
-		break;
-
-	case APMIO_GETINFO_OLD:
-		{
-			struct apm_info info;
-			apm_info_old_t aiop;
-
-			if (apm_get_info(&info))
-				error = ENXIO;
-			aiop = (apm_info_old_t)addr;
-			aiop->ai_major = info.ai_major;
-			aiop->ai_minor = info.ai_minor;
-			aiop->ai_acline = info.ai_acline;
-			aiop->ai_batt_stat = info.ai_batt_stat;
-			aiop->ai_batt_life = info.ai_batt_life;
-			aiop->ai_status = info.ai_status;
-		}
-		break;
-	case APMIO_GETINFO:
-		if (apm_get_info((apm_info_t)addr))
-			error = ENXIO;
-		break;
-	case APMIO_GETPWSTATUS:
-		if (apm_get_pwstatus((apm_pwstatus_t)addr))
-			error = ENXIO;
-		break;
-	case APMIO_ENABLE:
-		if (!(flag & FWRITE))
-			return (EPERM);
-		apm_event_enable();
-		break;
-	case APMIO_DISABLE:
-		if (!(flag & FWRITE))
-			return (EPERM);
-		apm_event_disable();
-		break;
-	case APMIO_HALTCPU:
-		if (!(flag & FWRITE))
-			return (EPERM);
-		apm_halt_cpu();
-		break;
-	case APMIO_NOTHALTCPU:
-		if (!(flag & FWRITE))
-			return (EPERM);
-		apm_not_halt_cpu();
-		break;
-	case APMIO_DISPLAY:
-		if (!(flag & FWRITE))
-			return (EPERM);
-		newstate = *(int *)addr;
-		if (apm_display(newstate))
-			error = ENXIO;
-		break;
-	case APMIO_BIOS:
-		if (!(flag & FWRITE))
-			return (EPERM);
-		/* XXX compatibility with the old interface */
-		args = (struct apm_bios_arg *)addr;
-		sc->bios.r.eax = args->eax;
-		sc->bios.r.ebx = args->ebx;
-		sc->bios.r.ecx = args->ecx;
-		sc->bios.r.edx = args->edx;
-		sc->bios.r.esi = args->esi;
-		sc->bios.r.edi = args->edi;
-		if ((ret = apm_bioscall())) {
-			/*
-			 * Return code 1 means bios call was unsuccessful.
-			 * Error code is stored in %ah.
-			 * Return code -1 means bios call was unsupported
-			 * in the APM BIOS version.
-			 */
-			if (ret == -1) {
-				error = EINVAL;
-			}
-		} else {
-			/*
-			 * Return code 0 means bios call was successful.
-			 * We need only %al and can discard %ah.
-			 */
-			sc->bios.r.eax &= 0xff;
-		}
-		args->eax = sc->bios.r.eax;
-		args->ebx = sc->bios.r.ebx;
-		args->ecx = sc->bios.r.ecx;
-		args->edx = sc->bios.r.edx;
-		args->esi = sc->bios.r.esi;
-		args->edi = sc->bios.r.edi;
-		break;
-	default:
-		error = EINVAL;
-		break;
-	}
-
-	/* for /dev/apmctl */
-	if (APMDEV(dev) == APMDEV_CTL) {
-		struct apm_event_info *evp;
-		int i;
-
-		error = 0;
-		switch (cmd) {
-		case APMIO_NEXTEVENT:
-			if (!sc->event_count) {
-				error = EAGAIN;
-			} else {
-				evp = (struct apm_event_info *)addr;
-				i = sc->event_ptr + APM_NEVENTS - sc->event_count;
-				i %= APM_NEVENTS;
-				*evp = sc->event_list[i];
-				sc->event_count--;
-			}
-			break;
-		case APMIO_REJECTLASTREQ:
-			if (apm_lastreq_rejected()) {
-				error = EINVAL;
-			}
-			break;
-		default:
-			error = EINVAL;
-			break;
-		}
-	}
-
-	return error;
-}
-
-static int
-apmwrite(dev_t dev, struct uio *uio, int ioflag)
-{
-	struct apm_softc *sc = &apm_softc;
-	u_int event_type;
-	int error;
-	u_char enabled;
-
-	if (APMDEV(dev) != APMDEV_CTL)
-		return(ENODEV);
-	if (uio->uio_resid != sizeof(u_int))
-		return(E2BIG);
-
-	if ((error = uiomove((caddr_t)&event_type, sizeof(u_int), uio)))
-		return(error);
-
-	if (event_type < 0 || event_type >= APM_NPMEV)
-		return(EINVAL);
-
-	if (sc->event_filter[event_type] == 0) {
-		enabled = 1;
-	} else {
-		enabled = 0;
-	}
-	sc->event_filter[event_type] = enabled;
-	APM_DPRINT("apmwrite: event 0x%x %s\n", event_type, is_enabled(enabled));
-
-	return uio->uio_resid;
-}
-
-static int
-apmpoll(dev_t dev, int events, struct thread *td)
-{
-	struct apm_softc *sc = &apm_softc;
-	int revents = 0;
-
-	if (events & (POLLIN | POLLRDNORM)) {
-		if (sc->event_count) {
-			revents |= events & (POLLIN | POLLRDNORM);
-		} else {
-			selrecord(td, &sc->sc_rsel);
-		}
-	}
-
-	return (revents);
-}
-
-static device_method_t apm_methods[] = {
-	/* Device interface */
-	DEVMETHOD(device_identify,	apm_identify),
-	DEVMETHOD(device_probe,		apm_probe),
-	DEVMETHOD(device_attach,	apm_attach),
-
-	{ 0, 0 }
-};
-
-static driver_t apm_driver = {
-	"apm",
-	apm_methods,
-	1,			/* no softc (XXX) */
-};
-
-static devclass_t apm_devclass;
-
-DRIVER_MODULE(apm, legacy, apm_driver, apm_devclass, apm_modevent, 0);
-MODULE_VERSION(apm, 1);
-
-static int
-apm_pm_func(u_long cmd, void *arg, ...)
-{
-	int	state, apm_state;
-	int	error;
-	va_list	ap;
-
-	error = 0;
-	switch (cmd) {
-	case POWER_CMD_SUSPEND:
-		va_start(ap, arg);
-		state = va_arg(ap, int);
-		va_end(ap);	
-
-		switch (state) {
-		case POWER_SLEEP_STATE_STANDBY:
-			apm_state = PMST_STANDBY;
-			break;
-		case POWER_SLEEP_STATE_SUSPEND:
-		case POWER_SLEEP_STATE_HIBERNATE:
-			apm_state = PMST_SUSPEND;
-			break;
-		default:
-			error = EINVAL;
-			goto out;
-		}
-
-		apm_suspend(apm_state);
-		break;
-
-	default:
-		error = EINVAL;
-		goto out;
-	}
-
-out:
-	return (error);
-}
-
-static void
-apm_pm_register(void *arg)
-{
-	int	disabled = 0;
-
-	resource_int_value("apm", 0, "disabled", &disabled);
-	if (disabled == 0)
-		power_pm_register(POWER_PM_TYPE_APM, apm_pm_func, NULL);
-}
-
-SYSINIT(power, SI_SUB_KLD, SI_ORDER_ANY, apm_pm_register, 0);