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357 lines
8.1 KiB
C
357 lines
8.1 KiB
C
/*-
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* Copyright (c) 2001 Mitsuru IWASAKI
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/fcntl.h>
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#include <sys/kernel.h>
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#include <sys/sysctl.h>
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#include <sys/uio.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include "acpi.h"
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#include <dev/acpica/acpivar.h>
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#include <dev/acpica/acpiio.h>
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static device_t acpi_dev;
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/*
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* APM driver emulation
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*/
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#include <sys/selinfo.h>
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#include <machine/apm_bios.h>
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#include <machine/pc/bios.h>
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#include <i386/bios/apm.h>
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uint32_t acpi_reset_video = 1;
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TUNABLE_INT("hw.acpi.reset_video", &acpi_reset_video);
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static int intr_model = ACPI_INTR_PIC;
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static struct apm_softc apm_softc;
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static d_open_t apmopen;
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static d_close_t apmclose;
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static d_write_t apmwrite;
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static d_ioctl_t apmioctl;
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static d_poll_t apmpoll;
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static struct cdevsw apm_cdevsw = {
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.d_version = D_VERSION,
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.d_flags = D_NEEDGIANT,
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.d_open = apmopen,
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.d_close = apmclose,
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.d_write = apmwrite,
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.d_ioctl = apmioctl,
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.d_poll = apmpoll,
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.d_name = "apm",
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};
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static int
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acpi_capm_convert_battstate(struct acpi_battinfo *battp)
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{
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int state;
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state = APM_UNKNOWN;
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if (battp->state & ACPI_BATT_STAT_DISCHARG) {
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if (battp->cap >= 50)
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state = 0; /* high */
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else
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state = 1; /* low */
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}
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if (battp->state & ACPI_BATT_STAT_CRITICAL)
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state = 2; /* critical */
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if (battp->state & ACPI_BATT_STAT_CHARGING)
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state = 3; /* charging */
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/* If still unknown, determine it based on the battery capacity. */
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if (state == APM_UNKNOWN) {
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if (battp->cap >= 50)
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state = 0; /* high */
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else
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state = 1; /* low */
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}
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return (state);
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}
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static int
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acpi_capm_convert_battflags(struct acpi_battinfo *battp)
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{
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int flags;
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flags = 0;
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if (battp->cap >= 50)
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flags |= APM_BATT_HIGH;
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else {
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if (battp->state & ACPI_BATT_STAT_CRITICAL)
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flags |= APM_BATT_CRITICAL;
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else
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flags |= APM_BATT_LOW;
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}
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if (battp->state & ACPI_BATT_STAT_CHARGING)
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flags |= APM_BATT_CHARGING;
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if (battp->state == ACPI_BATT_STAT_NOT_PRESENT)
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flags = APM_BATT_NOT_PRESENT;
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return (flags);
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}
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static int
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acpi_capm_get_info(apm_info_t aip)
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{
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int acline;
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struct acpi_battinfo batt;
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aip->ai_infoversion = 1;
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aip->ai_major = 1;
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aip->ai_minor = 2;
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aip->ai_status = apm_softc.active;
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aip->ai_capabilities= 0xff00; /* unknown */
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if (acpi_acad_get_acline(&acline))
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aip->ai_acline = APM_UNKNOWN; /* unknown */
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else
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aip->ai_acline = acline; /* on/off */
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if (acpi_battery_get_battinfo(-1, &batt)) {
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aip->ai_batt_stat = APM_UNKNOWN;
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aip->ai_batt_life = APM_UNKNOWN;
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aip->ai_batt_time = -1; /* unknown */
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aip->ai_batteries = ~0U; /* unknown */
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} else {
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aip->ai_batt_stat = acpi_capm_convert_battstate(&batt);
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aip->ai_batt_life = batt.cap;
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aip->ai_batt_time = (batt.min == -1) ? -1 : batt.min * 60;
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aip->ai_batteries = acpi_battery_get_units();
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}
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return (0);
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}
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static int
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acpi_capm_get_pwstatus(apm_pwstatus_t app)
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{
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int batt_unit;
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int acline;
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struct acpi_battinfo batt;
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if (app->ap_device != PMDV_ALLDEV &&
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(app->ap_device < PMDV_BATT0 || app->ap_device > PMDV_BATT_ALL))
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return (1);
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if (app->ap_device == PMDV_ALLDEV)
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batt_unit = -1; /* all units */
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else
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batt_unit = app->ap_device - PMDV_BATT0;
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if (acpi_battery_get_battinfo(batt_unit, &batt))
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return (1);
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app->ap_batt_stat = acpi_capm_convert_battstate(&batt);
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app->ap_batt_flag = acpi_capm_convert_battflags(&batt);
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app->ap_batt_life = batt.cap;
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app->ap_batt_time = (batt.min == -1) ? -1 : batt.min * 60;
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if (acpi_acad_get_acline(&acline))
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app->ap_acline = APM_UNKNOWN;
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else
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app->ap_acline = acline; /* on/off */
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return (0);
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}
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static int
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apmopen(struct cdev *dev, int flag, int fmt, d_thread_t *td)
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{
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return (0);
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}
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static int
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apmclose(struct cdev *dev, int flag, int fmt, d_thread_t *td)
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{
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return (0);
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}
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static int
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apmioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, d_thread_t *td)
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{
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int error = 0;
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struct acpi_softc *acpi_sc;
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struct apm_info info;
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apm_info_old_t aiop;
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acpi_sc = device_get_softc(acpi_dev);
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switch (cmd) {
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case APMIO_SUSPEND:
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if ((flag & FWRITE) == 0)
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return (EPERM);
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if (apm_softc.active)
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acpi_SetSleepState(acpi_sc, acpi_sc->acpi_suspend_sx);
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else
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error = EINVAL;
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break;
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case APMIO_STANDBY:
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if ((flag & FWRITE) == 0)
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return (EPERM);
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if (apm_softc.active)
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acpi_SetSleepState(acpi_sc, acpi_sc->acpi_standby_sx);
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else
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error = EINVAL;
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break;
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case APMIO_GETINFO_OLD:
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if (acpi_capm_get_info(&info))
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error = ENXIO;
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aiop = (apm_info_old_t)addr;
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aiop->ai_major = info.ai_major;
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aiop->ai_minor = info.ai_minor;
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aiop->ai_acline = info.ai_acline;
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aiop->ai_batt_stat = info.ai_batt_stat;
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aiop->ai_batt_life = info.ai_batt_life;
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aiop->ai_status = info.ai_status;
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break;
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case APMIO_GETINFO:
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if (acpi_capm_get_info((apm_info_t)addr))
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error = ENXIO;
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break;
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case APMIO_GETPWSTATUS:
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if (acpi_capm_get_pwstatus((apm_pwstatus_t)addr))
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error = ENXIO;
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break;
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case APMIO_ENABLE:
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if ((flag & FWRITE) == 0)
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return (EPERM);
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apm_softc.active = 1;
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break;
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case APMIO_DISABLE:
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if ((flag & FWRITE) == 0)
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return (EPERM);
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apm_softc.active = 0;
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break;
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case APMIO_HALTCPU:
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break;
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case APMIO_NOTHALTCPU:
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break;
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case APMIO_DISPLAY:
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if ((flag & FWRITE) == 0)
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return (EPERM);
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break;
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case APMIO_BIOS:
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if ((flag & FWRITE) == 0)
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return (EPERM);
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bzero(addr, sizeof(struct apm_bios_arg));
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break;
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default:
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error = EINVAL;
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break;
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}
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return (error);
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}
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static int
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apmwrite(struct cdev *dev, struct uio *uio, int ioflag)
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{
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return (uio->uio_resid);
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}
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static int
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apmpoll(struct cdev *dev, int events, d_thread_t *td)
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{
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return (0);
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}
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static void
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acpi_capm_init(struct acpi_softc *sc)
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{
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make_dev(&apm_cdevsw, 0, 0, 5, 0664, "apm");
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}
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int
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acpi_machdep_init(device_t dev)
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{
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struct acpi_softc *sc;
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acpi_dev = dev;
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sc = device_get_softc(acpi_dev);
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acpi_capm_init(sc);
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acpi_install_wakeup_handler(sc);
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if (intr_model == ACPI_INTR_PIC)
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BUS_CONFIG_INTR(dev, AcpiGbl_FADT->SciInt, INTR_TRIGGER_LEVEL,
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INTR_POLARITY_LOW);
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else
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acpi_SetIntrModel(intr_model);
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SYSCTL_ADD_UINT(&sc->acpi_sysctl_ctx,
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SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO,
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"reset_video", CTLFLAG_RD | CTLFLAG_RW, &acpi_reset_video, 0,
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"Call the VESA reset BIOS vector on the resume path");
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return (0);
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}
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void
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acpi_SetDefaultIntrModel(int model)
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{
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intr_model = model;
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}
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/* Check BIOS date. If 1998 or older, disable ACPI. */
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int
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acpi_machdep_quirks(int *quirks)
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{
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char *va;
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int year;
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/* BIOS address 0xffff5 contains the date in the format mm/dd/yy. */
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va = pmap_mapdev(0xffff0, 16);
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sscanf(va + 11, "%2d", &year);
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pmap_unmapdev((vm_offset_t)va, 16);
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/*
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* Date must be >= 1/1/1999 or we don't trust ACPI. Note that this
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* check must be changed by my 114th birthday.
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*/
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if (year > 90 && year < 99)
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*quirks = ACPI_Q_BROKEN;
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return (0);
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}
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