From bbb6994e507486b942d268c5f28330727a4d2e49 Mon Sep 17 00:00:00 2001 From: asami Date: Tue, 3 Sep 1996 10:24:29 +0000 Subject: Second phase of merge, get rid of more machine-independent-dependencies. Get rid of pc98/pc98/pc98_device.h. Submitted by: The FreeBSD(98) Development Team --- sys/pc98/apm/apm.c | 920 ----------------------------------------------------- 1 file changed, 920 deletions(-) delete mode 100644 sys/pc98/apm/apm.c (limited to 'sys/pc98/apm/apm.c') diff --git a/sys/pc98/apm/apm.c b/sys/pc98/apm/apm.c deleted file mode 100644 index 008282d..0000000 --- a/sys/pc98/apm/apm.c +++ /dev/null @@ -1,920 +0,0 @@ -/* - * APM (Advanced Power Management) BIOS Device Driver - * - * Copyright (c) 1994 UKAI, Fumitoshi. - * Copyright (c) 1994-1995 by HOSOKAWA, Tatsumi - * Copyright (c) 1996 Nate Williams - * - * 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) - * - * $Id: apm.c,v 1.2 1996/07/23 07:45:29 asami Exp $ - */ - -#include "apm.h" - -#if NAPM > 1 -#error only one APM device may be configured -#endif - -#include -#include -#include -#ifdef DEVFS -#include -#endif /*DEVFS*/ -#include -#include -#include -#include -#include -#include -#ifdef PC98 -#include -#else -#include -#endif -#include -#include -#include -#include -#include -#include -#include -#include -#include - -static int apm_display_off __P((void)); -static int apm_int __P((u_long *eax, u_long *ebx, u_long *ecx)); -static void apm_resume __P((void)); - -/* static data */ -struct apm_softc { - int initialized, active; - int always_halt_cpu, slow_idle_cpu; - int disabled, disengaged; - u_int minorversion, majorversion; - u_int cs32_base, cs16_base, ds_base; - u_int cs_limit, ds_limit; - u_int cs_entry; - u_int intversion; - struct apmhook sc_suspend; - struct apmhook sc_resume; -#ifdef DEVFS - void *sc_devfs_token; -#endif -}; - -static struct kern_devconf kdc_apm = { - 0, 0, 0, /* filled in by dev_attach */ - "apm", 0, { MDDT_ISA, 0 }, - isa_generic_externalize, 0, 0, ISA_EXTERNALLEN, - &kdc_isa0, /* parent */ - 0, /* parentdata */ - DC_UNCONFIGURED, /* state */ - "Advanced Power Management BIOS", - DC_CLS_MISC /* class */ -}; - - -static struct apm_softc apm_softc; -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 timeout_t apm_timeout; -static d_open_t apmopen; -static d_close_t apmclose; -static d_ioctl_t apmioctl; - -#define CDEV_MAJOR 39 -static struct cdevsw apm_cdevsw = - { apmopen, apmclose, noread, nowrite, /*39*/ - apmioctl, nostop, nullreset, nodevtotty,/* APM */ - seltrue, nommap, NULL , "apm" ,NULL, -1}; - -static void -apm_registerdev(struct isa_device *id) -{ - if (kdc_apm.kdc_isa) - return; - kdc_apm.kdc_state = DC_UNCONFIGURED; - kdc_apm.kdc_unit = 0; - kdc_apm.kdc_isa = id; - dev_attach(&kdc_apm); -} - -/* setup APM GDT discriptors */ -static void -setup_apm_gdt(u_int code32_base, u_int code16_base, u_int data_base, u_int code_limit, u_int data_limit) -{ - /* setup 32bit code segment */ - gdt_segs[GAPMCODE32_SEL].ssd_base = code32_base; - gdt_segs[GAPMCODE32_SEL].ssd_limit = code_limit; - - /* setup 16bit code segment */ - gdt_segs[GAPMCODE16_SEL].ssd_base = code16_base; - gdt_segs[GAPMCODE16_SEL].ssd_limit = code_limit; - - /* setup data segment */ - gdt_segs[GAPMDATA_SEL ].ssd_base = data_base; - gdt_segs[GAPMDATA_SEL ].ssd_limit = data_limit; - - /* reflect these changes on physical GDT */ - ssdtosd(gdt_segs + GAPMCODE32_SEL, &gdt[GAPMCODE32_SEL].sd); - ssdtosd(gdt_segs + GAPMCODE16_SEL, &gdt[GAPMCODE16_SEL].sd); - ssdtosd(gdt_segs + GAPMDATA_SEL , &gdt[GAPMDATA_SEL ].sd); -} - -/* 48bit far pointer */ -static struct addr48 { - u_long offset; - u_short segment; -} apm_addr; - -static int apm_errno; - -inline -int -apm_int(u_long *eax, u_long *ebx, u_long *ecx) -{ - u_long cf; - __asm __volatile(" - pushfl - cli - lcall _apm_addr - movl $0, %3 - jnc 1f - incl %3 - 1: - popfl - " - : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=D" (cf) - : "0" (*eax), "1" (*ebx), "2" (*ecx) - : "dx", "si", "memory" - ); - apm_errno = ((*eax) >> 8) & 0xff; - return cf; -} - - -/* enable/disable power management */ -static int -apm_enable_disable_pm(struct apm_softc *sc, int enable) -{ - u_long eax, ebx, ecx; - - eax = (APM_BIOS << 8) | APM_ENABLEDISABLEPM; - - if (sc->intversion >= INTVERSION(1, 1)) { - ebx = PMDV_ALLDEV; - } else { - ebx = 0xffff; /* APM version 1.0 only */ - } - ecx = enable; - return apm_int(&eax, &ebx, &ecx); -} - -/* Tell APM-BIOS that WE will do 1.1 and see what they say... */ -static void -apm_driver_version(void) -{ - u_long eax, ebx, ecx; - - eax = (APM_BIOS << 8) | APM_DRVVERSION; - ebx = 0x0; - ecx = 0x0101; - if(!apm_int(&eax, &ebx, &ecx)) - apm_version = eax & 0xffff; -} - -/* engage/disengage power management (APM 1.1 or later) */ -static int -apm_engage_disengage_pm(struct apm_softc *sc, int engage) -{ - u_long eax, ebx, ecx; - - eax = (APM_BIOS << 8) | APM_ENGAGEDISENGAGEPM; - ebx = PMDV_ALLDEV; - ecx = engage; - return(apm_int(&eax, &ebx, &ecx)); -} - -/* get PM event */ -static u_int -apm_getevent(struct apm_softc *sc) -{ - u_long eax, ebx, ecx; - - eax = (APM_BIOS << 8) | APM_GETPMEVENT; - - ebx = 0; - ecx = 0; - if (apm_int(&eax, &ebx, &ecx)) - return PMEV_NOEVENT; - - return ebx & 0xffff; -} - -/* suspend entire system */ -static int -apm_suspend_system(struct apm_softc *sc) -{ - u_long eax, ebx, ecx; - - eax = (APM_BIOS << 8) | APM_SETPWSTATE; - ebx = PMDV_ALLDEV; - ecx = PMST_SUSPEND; - - if (apm_int(&eax, &ebx, &ecx)) { - printf("Entire system suspend failure: errcode = %ld\n", - 0xff & (eax >> 8)); - return 1; - } - 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 - */ -static int -apm_display_off(void) -{ - u_long eax, ebx, ecx; - - eax = (APM_BIOS << 8) | APM_SETPWSTATE; - ebx = PMDV_2NDSTORAGE0; - ecx = PMST_STANDBY; - if (apm_int(&eax, &ebx, &ecx)) { - printf("Display off failure: errcode = %ld\n", - 0xff & (eax >> 8)); - return 1; - } - - return 0; -} - -/* APM Battery low handler */ -static void -apm_battery_low(struct apm_softc *sc) -{ - 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; - -#ifdef APM_DEBUG - printf("Add hook \"%s\"\n", ah->ah_name); -#endif - - 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) { -#ifdef APM_DEBUG - printf("Execute APM hook \"%s.\"\n", p->ah_name); -#endif - 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 struct timeval suspend_time; -static struct timeval diff_time; - -static int -apm_default_resume(void *arg) -{ - int pl; - u_int second, minute, hour; - struct timeval resume_time, tmp_time; - - /* modified for adjkerntz */ - pl = splsoftclock(); - inittodr(0); /* adjust time to RTC */ - microtime(&resume_time); - tmp_time = time; /* because 'time' is volatile */ - timevaladd(&tmp_time, &diff_time); - time = tmp_time; - splx(pl); - second = resume_time.tv_sec - suspend_time.tv_sec; - hour = second / 3600; - second %= 3600; - minute = second / 60; - second %= 60; - log(LOG_NOTICE, "resumed from suspended mode (slept %02d:%02d:%02d)\n", - hour, minute, second); - return 0; -} - -static int -apm_default_suspend(void *arg) -{ - int pl; - - pl = splsoftclock(); - microtime(&diff_time); - inittodr(0); - microtime(&suspend_time); - timevalsub(&diff_time, &suspend_time); - splx(pl); - return 0; -} - -static void apm_processevent(struct apm_softc *); - -/* - * Public interface to the suspend/resume: - * - * Execute suspend and resume hook before and after sleep, respectively. - * - */ - -void -apm_suspend(void) -{ - struct apm_softc *sc = &apm_softc; - - if (!sc) - return; - - if (sc->initialized) { - apm_execute_hook(hook[APM_HOOK_SUSPEND]); - apm_suspend_system(sc); - apm_processevent(sc); - } -} - -void -apm_resume(void) -{ - struct apm_softc *sc = &apm_softc; - - if (!sc) - return; - - if (sc->initialized) { - apm_execute_hook(hook[APM_HOOK_RESUME]); - } -} - - -/* get APM information */ -static int -apm_get_info(struct apm_softc *sc, apm_info_t aip) -{ - u_long eax, ebx, ecx; - - eax = (APM_BIOS << 8) | APM_GETPWSTATUS; - ebx = PMDV_ALLDEV; - ecx = 0; - - if (apm_int(&eax, &ebx, &ecx)) - return 1; - - aip->ai_acline = (ebx >> 8) & 0xff; - aip->ai_batt_stat = ebx & 0xff; - aip->ai_batt_life = ecx & 0xff; - aip->ai_major = (u_int)sc->majorversion; - aip->ai_minor = (u_int)sc->minorversion; - aip->ai_status = (u_int)sc->active; - - return 0; -} - - -/* inform APM BIOS that CPU is idle */ -void -apm_cpu_idle(void) -{ - struct apm_softc *sc = &apm_softc; - - if (sc->active) { - u_long eax, ebx, ecx; - - eax = (APM_BIOS <<8) | APM_CPUIDLE; - ecx = ebx = 0; - apm_int(&eax, &ebx, &ecx); - } - /* - * 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) { - __asm("hlt"); /* 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) { - u_long eax, ebx, ecx; - - eax = (APM_BIOS <<8) | APM_CPUBUSY; - ecx = ebx = 0; - apm_int(&eax, &ebx, &ecx); - } -} - - -/* - * APM timeout routine: - * - * This routine is automatically called by timer once per second. - */ - -static void -apm_timeout(void *arg) -{ - struct apm_softc *sc = arg; - - apm_processevent(sc); - if (sc->active == 1) { - timeout(apm_timeout, (void *)sc, hz - 1 ); /* More than 1 Hz */ - } -} - -/* enable APM BIOS */ -static void -apm_event_enable(struct apm_softc *sc) -{ -#ifdef APM_DEBUG - printf("called apm_event_enable()\n"); -#endif - if (sc->initialized) { - sc->active = 1; - apm_timeout(sc); - } -} - -/* disable APM BIOS */ -static void -apm_event_disable(struct apm_softc *sc) -{ -#ifdef APM_DEBUG - printf("called apm_event_disable()\n"); -#endif - if (sc->initialized) { - untimeout(apm_timeout, NULL); - sc->active = 0; - } -} - -/* halt CPU in scheduling loop */ -static void -apm_halt_cpu(struct apm_softc *sc) -{ - if (sc->initialized) { - sc->always_halt_cpu = 1; - } -} - -/* don't halt CPU in scheduling loop */ -static void -apm_not_halt_cpu(struct apm_softc *sc) -{ - if (sc->initialized) { - sc->always_halt_cpu = 0; - } -} - -/* device driver definitions */ -static int apmprobe (struct isa_device *); -static int apmattach(struct isa_device *); -struct isa_driver apmdriver = { - apmprobe, apmattach, "apm" }; - -/* - * probe APM (dummy): - * - * APM probing routine is placed on locore.s and apm_init.S because - * this process forces the CPU to turn to real mode or V86 mode. - * Current version uses real mode, but on future version, we want - * to use V86 mode in APM initialization. - */ - -static int -apmprobe(struct isa_device *dvp) -{ - if ( dvp->id_unit > 0 ) { - printf("apm: Only one APM driver supported.\n"); - return 0; - } - apm_registerdev(dvp); - switch (apm_version) { - case APMINI_CANTFIND: - /* silent */ - return 0; - case APMINI_NOT32BIT: - printf("apm: 32bit connection is not supported.\n"); - return 0; - case APMINI_CONNECTERR: - printf("apm: 32-bit connection error.\n"); - return 0; - } -#ifdef APM_BROKEN_STATCLOCK - statclock_disable = 1; -#endif - - return -1; -} - - -/* Process APM event */ -static void -apm_processevent(struct apm_softc *sc) -{ - int apm_event; - -#ifdef APM_DEBUG -# define OPMEV_DEBUGMESSAGE(symbol) case symbol: \ - printf("Received APM Event: " #symbol "\n"); -#else -# define OPMEV_DEBUGMESSAGE(symbol) case symbol: -#endif - do { - apm_event = apm_getevent(sc); - switch (apm_event) { - OPMEV_DEBUGMESSAGE(PMEV_STANDBYREQ); - apm_suspend(); - break; - OPMEV_DEBUGMESSAGE(PMEV_SUSPENDREQ); - apm_suspend(); - break; - OPMEV_DEBUGMESSAGE(PMEV_USERSUSPENDREQ); - apm_suspend(); - break; - OPMEV_DEBUGMESSAGE(PMEV_CRITSUSPEND); - apm_suspend(); - break; - OPMEV_DEBUGMESSAGE(PMEV_NORMRESUME); - apm_resume(); - break; - OPMEV_DEBUGMESSAGE(PMEV_CRITRESUME); - apm_resume(); - break; - OPMEV_DEBUGMESSAGE(PMEV_STANDBYRESUME); - apm_resume(); - break; - OPMEV_DEBUGMESSAGE(PMEV_BATTERYLOW); - apm_battery_low(sc); - apm_suspend(); - break; - OPMEV_DEBUGMESSAGE(PMEV_POWERSTATECHANGE); - break; - OPMEV_DEBUGMESSAGE(PMEV_UPDATETIME); - inittodr(0); /* adjust time to RTC */ - break; - OPMEV_DEBUGMESSAGE(PMEV_NOEVENT); - break; - default: - printf("Unknown Original APM Event 0x%x\n", apm_event); - break; - } - } while (apm_event != PMEV_NOEVENT); -} - -/* - * Attach APM: - * - * Initialize APM driver (APM BIOS itself has been initialized in locore.s) - */ - -static int -apmattach(struct isa_device *dvp) -{ -#define APM_KERNBASE KERNBASE - struct apm_softc *sc = &apm_softc; -#ifdef APM_DSVALUE_BUG - caddr_t apm_bios_work; - - /* - * XXX - Malloc enough space for the APM DS, and then copy the - * current DS into the new space since the DS setup by the - * APM bios is going to get wiped out. - */ - apm_bios_work = (caddr_t)malloc(apm_ds_limit, M_DEVBUF, M_NOWAIT); - bcopy((caddr_t)((apm_ds_base << 4) + APM_KERNBASE), apm_bios_work, - apm_ds_limit); -#endif /* APM_DSVALUE_BUG */ - - sc->initialized = 0; - - /* Must be externally enabled */ - sc->active = 0; - - /* setup APM parameters */ - sc->cs16_base = (apm_cs16_base << 4) + APM_KERNBASE; - sc->cs32_base = (apm_cs32_base << 4) + APM_KERNBASE; - sc->ds_base = (apm_ds_base << 4) + APM_KERNBASE; - sc->cs_limit = apm_cs_limit; - sc->ds_limit = apm_ds_limit; - sc->cs_entry = apm_cs_entry; - -#ifdef APM_DSVALUE_BUG - /* Set the DS base to point to the newly made copy of the APM DS */ - sc->ds_base = (u_int)apm_bios_work; -#endif /* APM_DSVALUE_BUG */ - - /* Always call HLT in idle loop */ - sc->always_halt_cpu = 1; - - sc->slow_idle_cpu = ((apm_flags & APM_CPUIDLE_SLOW) != 0); - sc->disabled = ((apm_flags & APM_DISABLED) != 0); - sc->disengaged = ((apm_flags & APM_DISENGAGED) != 0); - - /* print bootstrap messages */ -#ifdef APM_DEBUG - printf("apm: APM BIOS version %04x\n", apm_version); - printf("apm: Code32 0x%08x, Code16 0x%08x, Data 0x%08x\n", - sc->cs32_base, sc->cs16_base, sc->ds_base); - printf("apm: Code entry 0x%08x, Idling CPU %s, Management %s\n", - sc->cs_entry, is_enabled(sc->slow_idle_cpu), - is_enabled(!sc->disabled)); - printf("apm: CS_limit=0x%x, DS_limit=0x%x\n", - sc->cs_limit, sc->ds_limit); -#endif /* APM_DEBUG */ - -#ifdef 0 - /* Workaround for some buggy APM BIOS implementations */ - sc->cs_limit = 0xffff; - sc->ds_limit = 0xffff; -#endif - - /* setup GDT */ - setup_apm_gdt(sc->cs32_base, sc->cs16_base, sc->ds_base, - sc->cs_limit, sc->ds_limit); - - /* setup entry point 48bit pointer */ - apm_addr.segment = GSEL(GAPMCODE32_SEL, SEL_KPL); - apm_addr.offset = sc->cs_entry; - -#ifdef FORCE_APM10 - apm_version = 0x100; - sc->majorversion = 1; - sc->minorversion = 0; - sc->intversion = INTVERSION(sc->majorversion, sc->minorversion); - printf("apm: running in APM 1.0 compatible mode\n"); - kcd_apm.kdc_description = - "Advanced Power Management BIOS (1.0 compatability mode)", -#else - /* Try to kick bios into 1.1 or greater mode */ - apm_driver_version(); - sc->minorversion = ((apm_version & 0x00f0) >> 4) * 10 + - ((apm_version & 0x000f) >> 0); - sc->majorversion = ((apm_version & 0xf000) >> 12) * 10 + - ((apm_version & 0x0f00) >> 8); - - sc->intversion = INTVERSION(sc->majorversion, sc->minorversion); - - if (sc->intversion >= INTVERSION(1, 1)) { -#ifdef APM_DEBUG - printf("apm: Engaged control %s\n", is_enabled(!sc->disengaged)); -#endif - } - - printf("apm: found APM BIOS version %d.%d\n", - sc->majorversion, sc->minorversion); -#endif /* FORCE_APM10 */ - -#ifdef APM_DEBUG - printf("apm: Slow Idling CPU %s\n", is_enabled(sc->slow_idle_cpu)); -#endif - - /* enable power management */ - if (sc->disabled) { - if (apm_enable_disable_pm(sc, 1)) { -#ifdef APM_DEBUG - printf("apm: *Warning* enable function failed! [%x]\n", - apm_errno); -#endif - } - } - - /* engage power managment (APM 1.1 or later) */ - if (sc->intversion >= INTVERSION(1, 1) && sc->disengaged) { - if (apm_engage_disengage_pm(sc, 1)) { -#ifdef APM_DEBUG - printf("apm: *Warning* engage function failed err=[%x]", - apm_errno); - printf(" (Docked or using external power?).\n"); -#endif - } - } - - /* default suspend hook */ - sc->sc_suspend.ah_fun = apm_default_suspend; - sc->sc_suspend.ah_arg = sc; - sc->sc_suspend.ah_name = "default suspend"; - sc->sc_suspend.ah_order = APM_MAX_ORDER; - - /* default resume hook */ - sc->sc_resume.ah_fun = apm_default_resume; - sc->sc_resume.ah_arg = sc; - sc->sc_resume.ah_name = "default resume"; - sc->sc_resume.ah_order = APM_MIN_ORDER; - - apm_hook_establish(APM_HOOK_SUSPEND, &sc->sc_suspend); - apm_hook_establish(APM_HOOK_RESUME , &sc->sc_resume); - - apm_event_enable(sc); - kdc_apm.kdc_state = DC_IDLE; - - sc->initialized = 1; - -#ifdef DEVFS - sc->sc_devfs_token = - devfs_add_devswf(&apm_cdevsw, 0, DV_CHR, 0, 0, 0600, "apm"); -#endif - return 0; -} - -static int -apmopen(dev_t dev, int flag, int fmt, struct proc *p) -{ - struct apm_softc *sc = &apm_softc; - - if (minor(dev) != 0 || !sc->initialized) - return (ENXIO); - - return 0; -} - -static int -apmclose(dev_t dev, int flag, int fmt, struct proc *p) -{ - return 0; -} - -static int -apmioctl(dev_t dev, int cmd, caddr_t addr, int flag, struct proc *p) -{ - struct apm_softc *sc = &apm_softc; - int error = 0; - - if (minor(dev) != 0 || !sc->initialized) - return (ENXIO); -#ifdef APM_DEBUG - printf("APM ioctl: cmd = 0x%x\n", cmd); -#endif - switch (cmd) { - case APMIO_SUSPEND: - if ( sc->active) { - apm_suspend(); - } else { - error = EINVAL; - } - break; - case APMIO_GETINFO: - if (apm_get_info(sc, (apm_info_t)addr)) { - error = ENXIO; - } - break; - case APMIO_ENABLE: - kdc_apm.kdc_state = DC_BUSY; - apm_event_enable(sc); - break; - case APMIO_DISABLE: - kdc_apm.kdc_state = DC_IDLE; - apm_event_disable(sc); - break; - case APMIO_HALTCPU: - apm_halt_cpu(sc); - break; - case APMIO_NOTHALTCPU: - apm_not_halt_cpu(sc); - break; - case APMIO_DISPLAYOFF: - if (apm_display_off()) { - error = ENXIO; - } - break; - default: - error = EINVAL; - break; - } - return error; -} - - -static apm_devsw_installed = 0; - -static void -apm_drvinit(void *unused) -{ - dev_t dev; - - if( ! apm_devsw_installed ) { - dev = makedev(CDEV_MAJOR,0); - cdevsw_add(&dev,&apm_cdevsw,NULL); - apm_devsw_installed = 1; - } -} - -SYSINIT(apmdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,apm_drvinit,NULL) -- cgit v1.1