From 012abb85fbb76e777aca3b02c1b9fc912a074ca0 Mon Sep 17 00:00:00 2001 From: mdodd Date: Tue, 25 Mar 2003 05:19:18 +0000 Subject: Merge PC98 support. --- sys/pc98/apm/apm.c | 1545 ---------------------------------------------------- 1 file changed, 1545 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 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 - * Copyright (c) 1996 Nate Williams - * Copyright (c) 1997 Poul-Henning Kamp - * - * 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 -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -#include -#include -#include - -#include - -/* 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 - */ -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); -- cgit v1.1