349 lines
7.2 KiB
C
349 lines
7.2 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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* $FreeBSD$
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*/
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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/uio.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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#if __FreeBSD_version < 500000
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#include <sys/select.h>
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#else
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#include <sys/selinfo.h>
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#endif
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#include <machine/apm_bios.h>
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#include <machine/pc/bios.h>
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#include <i386/apm/apm.h>
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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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#define CDEV_MAJOR 39
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static struct cdevsw apm_cdevsw = {
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/* open */ apmopen,
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/* close */ apmclose,
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/* read */ noread,
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/* write */ apmwrite,
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/* ioctl */ apmioctl,
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/* poll */ apmpoll,
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/* mmap */ nommap,
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/* strategy */ nostrategy,
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/* name */ "apm",
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/* maj */ CDEV_MAJOR,
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/* dump */ nodump,
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/* psize */ nopsize,
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/* flags */ 0,
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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 = 0xff; /* XXX 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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}
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if (battp->state & ACPI_BATT_STAT_CRITICAL) {
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state = 2; /* critical */
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}
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if (battp->state & ACPI_BATT_STAT_CHARGING) {
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state = 3; /* charging */
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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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}
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if (battp->state & ACPI_BATT_STAT_CHARGING) {
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flags |= APM_BATT_CHARGING;
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}
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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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}
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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; /* XXX unknown */
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if (acpi_acad_get_acline(&acline)) {
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aip->ai_acline = 0xff; /* unknown */
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} else {
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aip->ai_acline = acline; /* on/off */
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}
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if (acpi_battery_get_battinfo(-1, &batt)) {
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aip->ai_batt_stat = 0xff; /* unknown */
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aip->ai_batt_life = 0xff; /* unknown */
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aip->ai_batt_time = -1; /* unknown */
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aip->ai_batteries = 0;
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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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}
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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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}
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if (acpi_battery_get_battinfo(batt_unit, &batt)) {
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return (1);
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}
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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 = 0xff; /* unknown */
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} else {
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app->ap_acline = acline; /* on/off */
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}
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return (0);
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}
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static int
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apmopen(dev_t 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(dev_t 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(dev_t 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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if ((acpi_sc = device_get_softc(acpi_dev)) == NULL) {
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return (ENXIO);
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}
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switch (cmd) {
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case APMIO_SUSPEND:
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if (!(flag & FWRITE))
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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))
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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))
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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))
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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))
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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))
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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(dev_t 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(dev_t 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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if ((sc = device_get_softc(acpi_dev)) == NULL) {
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return (ENXIO);
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}
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/*
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* XXX: Prevent the PnP BIOS code from interfering with
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* our own scan of ISA devices.
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*/
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PnPBIOStable = NULL;
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acpi_capm_init(sc);
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acpi_install_wakeup_handler(sc);
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#ifdef APIC_IO
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acpi_SetIntrModel(ACPI_INTR_APIC);
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#endif
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return (0);
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}
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