acpi_battery.c revision 85729
179282Smsmith/*- 279282Smsmith * Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@jp.freebsd.org> 379282Smsmith * All rights reserved. 479282Smsmith * 579282Smsmith * Redistribution and use in source and binary forms, with or without 679282Smsmith * modification, are permitted provided that the following conditions 779282Smsmith * are met: 879282Smsmith * 1. Redistributions of source code must retain the above copyright 979282Smsmith * notice, this list of conditions and the following disclaimer. 1079282Smsmith * 2. Redistributions in binary form must reproduce the above copyright 1179282Smsmith * notice, this list of conditions and the following disclaimer in the 1279282Smsmith * documentation and/or other materials provided with the distribution. 1379282Smsmith * 1479282Smsmith * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1579282Smsmith * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1679282Smsmith * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1779282Smsmith * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1879282Smsmith * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1979282Smsmith * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2079282Smsmith * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2179282Smsmith * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2279282Smsmith * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2379282Smsmith * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2479282Smsmith * SUCH DAMAGE. 2579282Smsmith * 2679282Smsmith * $FreeBSD: head/sys/dev/acpica/acpi_battery.c 85729 2001-10-30 14:24:26Z iwasaki $ 2779282Smsmith */ 2879282Smsmith 2979282Smsmith#include "opt_acpi.h" /* XXX trim includes */ 3079282Smsmith#include <sys/param.h> 3179282Smsmith#include <sys/kernel.h> 3279282Smsmith#include <sys/proc.h> 3379282Smsmith#include <sys/lock.h> 3479282Smsmith#include <sys/malloc.h> 3579282Smsmith#include <sys/mutex.h> 3679282Smsmith#include <sys/bus.h> 3779282Smsmith#include <sys/conf.h> 3879282Smsmith#include <sys/ioccom.h> 3979282Smsmith#include <sys/reboot.h> 4079282Smsmith#include <sys/sysctl.h> 4179282Smsmith#include <sys/ctype.h> 4279282Smsmith 4379282Smsmith#include <machine/clock.h> 4479282Smsmith 4579282Smsmith#include <machine/resource.h> 4679282Smsmith 4779282Smsmith#include "acpi.h" 4879282Smsmith 4979282Smsmith#include <dev/acpica/acpivar.h> 5079282Smsmith#include <dev/acpica/acpiio.h> 5179282Smsmith 5282372SmsmithMALLOC_DEFINE(M_ACPIBATT, "acpibatt", "ACPI generic battery data"); 5379282Smsmith 5479282Smsmith/* 5579282Smsmith * ACPI Battery Abstruction Layer. 5679282Smsmith */ 5779282Smsmith 5879282Smsmithstruct acpi_batteries { 5979282Smsmith TAILQ_ENTRY(acpi_batteries) link; 6079282Smsmith struct acpi_battdesc battdesc; 6179282Smsmith}; 6279282Smsmith 6379282Smsmithstatic TAILQ_HEAD(,acpi_batteries) acpi_batteries; 6479282Smsmithstatic int acpi_batteries_initted = 0; 6579282Smsmithstatic int acpi_batteries_units = 0; 6685729Siwasakistatic int acpi_battery_info_expire = 5; 6779282Smsmithstatic struct acpi_battinfo acpi_battery_battinfo; 6879282Smsmith 6985556Siwasakiint 7079282Smsmithacpi_battery_get_units(void) 7179282Smsmith{ 7279282Smsmith 7379282Smsmith return (acpi_batteries_units); 7479282Smsmith} 7579282Smsmith 7685556Siwasakiint 7779282Smsmithacpi_battery_get_battdesc(int logical_unit, struct acpi_battdesc *battdesc) 7879282Smsmith{ 7979282Smsmith int i; 8079282Smsmith struct acpi_batteries *bp; 8179282Smsmith 8279282Smsmith if (logical_unit < 0 || logical_unit >= acpi_batteries_units) { 8379282Smsmith return (ENXIO); 8479282Smsmith } 8579282Smsmith 8679282Smsmith i = 0; 8779282Smsmith TAILQ_FOREACH(bp, &acpi_batteries, link) { 8879282Smsmith if (logical_unit == i) { 8979282Smsmith battdesc->type = bp->battdesc.type; 9079282Smsmith battdesc->phys_unit = bp->battdesc.phys_unit; 9179282Smsmith return (0); 9279282Smsmith } 9379282Smsmith i++; 9479282Smsmith } 9579282Smsmith 9679282Smsmith return (ENXIO); 9779282Smsmith} 9879282Smsmith 9985556Siwasakiint 10079282Smsmithacpi_battery_get_battinfo(int unit, struct acpi_battinfo *battinfo) 10179282Smsmith{ 10279282Smsmith int error; 10379282Smsmith struct acpi_battdesc battdesc; 10479282Smsmith 10579282Smsmith error = 0; 10679282Smsmith if (unit == -1) { 10779282Smsmith error = acpi_cmbat_get_battinfo(-1, battinfo); 10879282Smsmith goto out; 10979282Smsmith } else { 11079282Smsmith if ((error = acpi_battery_get_battdesc(unit, &battdesc)) != 0) { 11179282Smsmith goto out; 11279282Smsmith } 11379282Smsmith switch (battdesc.type) { 11479282Smsmith case ACPI_BATT_TYPE_CMBAT: 11579282Smsmith error = acpi_cmbat_get_battinfo(battdesc.phys_unit, 11679282Smsmith battinfo); 11779282Smsmith break; 11879282Smsmith default: 11979282Smsmith error = ENXIO; 12079282Smsmith break; 12179282Smsmith } 12279282Smsmith } 12379282Smsmithout: 12479282Smsmith return (error); 12579282Smsmith} 12679282Smsmith 12785729Siwasakiint 12885729Siwasakiacpi_battery_get_info_expire(void) 12985729Siwasaki{ 13085729Siwasaki 13185729Siwasaki return (acpi_battery_info_expire); 13285729Siwasaki} 13385729Siwasaki 13479282Smsmithstatic int 13579282Smsmithacpi_battery_ioctl(u_long cmd, caddr_t addr, void *arg) 13679282Smsmith{ 13779282Smsmith int error; 13879282Smsmith int logical_unit; 13979282Smsmith union acpi_battery_ioctl_arg *ioctl_arg; 14079282Smsmith 14179282Smsmith ioctl_arg = (union acpi_battery_ioctl_arg *)addr; 14279282Smsmith error = 0; 14379282Smsmith switch (cmd) { 14479282Smsmith case ACPIIO_BATT_GET_UNITS: 14579282Smsmith *(int *)addr = acpi_battery_get_units(); 14679282Smsmith break; 14779282Smsmith 14879282Smsmith case ACPIIO_BATT_GET_BATTDESC: 14979282Smsmith logical_unit = ioctl_arg->unit; 15079282Smsmith error = acpi_battery_get_battdesc(logical_unit, &ioctl_arg->battdesc); 15179282Smsmith break; 15279282Smsmith 15379282Smsmith case ACPIIO_BATT_GET_BATTINFO: 15479282Smsmith logical_unit = ioctl_arg->unit; 15579282Smsmith error = acpi_battery_get_battinfo(logical_unit, 15679282Smsmith &ioctl_arg->battinfo); 15779282Smsmith break; 15879282Smsmith 15979282Smsmith default: 16079282Smsmith error = EINVAL; 16179282Smsmith break; 16279282Smsmith } 16379282Smsmith 16479282Smsmith return (error); 16579282Smsmith} 16679282Smsmith 16779282Smsmithstatic int 16879282Smsmithacpi_battery_sysctl(SYSCTL_HANDLER_ARGS) 16979282Smsmith{ 17079282Smsmith int val; 17179282Smsmith int error; 17279282Smsmith 17379282Smsmith acpi_battery_get_battinfo(-1, &acpi_battery_battinfo); 17479282Smsmith val = *(u_int *)oidp->oid_arg1; 17579282Smsmith error = sysctl_handle_int(oidp, &val, 0, req); 17679282Smsmith return (error); 17779282Smsmith} 17879282Smsmith 17979282Smsmithstatic int 18079282Smsmithacpi_battery_init(void) 18179282Smsmith{ 18279282Smsmith device_t dev; 18379282Smsmith struct acpi_softc *sc; 18479282Smsmith int error; 18579282Smsmith 18679282Smsmith if ((dev = devclass_get_device(acpi_devclass, 0)) == NULL) { 18779282Smsmith return (ENXIO); 18879282Smsmith } 18979282Smsmith if ((sc = device_get_softc(dev)) == NULL) { 19079282Smsmith return (ENXIO); 19179282Smsmith } 19279282Smsmith 19379282Smsmith error = 0; 19479282Smsmith 19579282Smsmith TAILQ_INIT(&acpi_batteries); 19679282Smsmith acpi_batteries_initted = 1; 19779282Smsmith 19879282Smsmith if ((error = acpi_register_ioctl(ACPIIO_BATT_GET_UNITS, 19979282Smsmith acpi_battery_ioctl, NULL)) != 0) { 20079282Smsmith return (error); 20179282Smsmith } 20279282Smsmith if ((error = acpi_register_ioctl(ACPIIO_BATT_GET_BATTDESC, 20379282Smsmith acpi_battery_ioctl, NULL)) != 0) { 20479282Smsmith return (error); 20579282Smsmith } 20679282Smsmith if ((error = acpi_register_ioctl(ACPIIO_BATT_GET_BATTINFO, 20779282Smsmith acpi_battery_ioctl, NULL)) != 0) { 20879282Smsmith return (error); 20979282Smsmith } 21079282Smsmith 21179282Smsmith sysctl_ctx_init(&sc->acpi_battery_sysctl_ctx); 21279282Smsmith sc->acpi_battery_sysctl_tree = SYSCTL_ADD_NODE(&sc->acpi_battery_sysctl_ctx, 21379282Smsmith SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 21479282Smsmith OID_AUTO, "battery", CTLFLAG_RD, 0, ""); 21579282Smsmith SYSCTL_ADD_PROC(&sc->acpi_battery_sysctl_ctx, 21679282Smsmith SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree), 21779282Smsmith OID_AUTO, "life", CTLTYPE_INT | CTLFLAG_RD, 21879282Smsmith &acpi_battery_battinfo.cap, 0, acpi_battery_sysctl, "I", ""); 21979282Smsmith SYSCTL_ADD_PROC(&sc->acpi_battery_sysctl_ctx, 22079282Smsmith SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree), 22179282Smsmith OID_AUTO, "time", CTLTYPE_INT | CTLFLAG_RD, 22279282Smsmith &acpi_battery_battinfo.min, 0, acpi_battery_sysctl, "I", ""); 22379282Smsmith SYSCTL_ADD_PROC(&sc->acpi_battery_sysctl_ctx, 22479282Smsmith SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree), 22579282Smsmith OID_AUTO, "state", CTLTYPE_INT | CTLFLAG_RD, 22679282Smsmith &acpi_battery_battinfo.state, 0, acpi_battery_sysctl, "I", ""); 22779282Smsmith SYSCTL_ADD_INT(&sc->acpi_battery_sysctl_ctx, 22879282Smsmith SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree), 22979282Smsmith OID_AUTO, "units", CTLFLAG_RD, &acpi_batteries_units, 0, ""); 23085729Siwasaki SYSCTL_ADD_INT(&sc->acpi_battery_sysctl_ctx, 23185729Siwasaki SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree), 23285729Siwasaki OID_AUTO, "info_expire", CTLFLAG_RD | CTLFLAG_RW, 23385729Siwasaki &acpi_battery_info_expire, 0, ""); 23479282Smsmith 23579282Smsmith return (error); 23679282Smsmith} 23779282Smsmith 23879282Smsmithint 23979282Smsmithacpi_battery_register(int type, int phys_unit) 24079282Smsmith{ 24179282Smsmith int error; 24279282Smsmith struct acpi_batteries *bp; 24379282Smsmith 24479282Smsmith error = 0; 24582372Smsmith if ((bp = malloc(sizeof(*bp), M_ACPIBATT, M_NOWAIT)) == NULL) { 24679282Smsmith return(ENOMEM); 24779282Smsmith } 24879282Smsmith 24979282Smsmith bp->battdesc.type = type; 25079282Smsmith bp->battdesc.phys_unit = phys_unit; 25179282Smsmith if (acpi_batteries_initted == 0) { 25279282Smsmith if ((error = acpi_battery_init()) != 0) { 25382372Smsmith free(bp, M_ACPIBATT); 25479282Smsmith return(error); 25579282Smsmith } 25679282Smsmith } 25779282Smsmith 25879282Smsmith TAILQ_INSERT_TAIL(&acpi_batteries, bp, link); 25979282Smsmith acpi_batteries_units++; 26079282Smsmith 26179282Smsmith return(0); 26279282Smsmith} 263