/*- * Copyright (c) 2000 Mitsuru IWASAKI * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: src/sys/dev/acpica/acpi_battery.c,v 1.8 2003/08/11 15:34:43 njl Exp $ * $DragonFly: src/sys/dev/acpica5/acpi_battery.c,v 1.2 2004/05/05 22:19:24 dillon Exp $ */ #include "opt_acpi.h" #include #include #include #include #include #include #include "acpi.h" #include #include MALLOC_DEFINE(M_ACPIBATT, "acpibatt", "ACPI generic battery data"); struct acpi_batteries { TAILQ_ENTRY(acpi_batteries) link; struct acpi_battdesc battdesc; }; static TAILQ_HEAD(,acpi_batteries) acpi_batteries; static int acpi_batteries_initted = 0; static int acpi_batteries_units = 0; static int acpi_battery_info_expire = 5; static struct acpi_battinfo acpi_battery_battinfo; int acpi_battery_get_units(void) { return (acpi_batteries_units); } int acpi_battery_get_battdesc(int logical_unit, struct acpi_battdesc *battdesc) { struct acpi_batteries *bp; int i; if (logical_unit < 0 || logical_unit >= acpi_batteries_units) return (ENXIO); i = 0; TAILQ_FOREACH(bp, &acpi_batteries, link) { if (logical_unit == i) { battdesc->type = bp->battdesc.type; battdesc->phys_unit = bp->battdesc.phys_unit; return (0); } i++; } return (ENXIO); } int acpi_battery_get_battinfo(int unit, struct acpi_battinfo *battinfo) { struct acpi_battdesc battdesc; int error; error = 0; if (unit == -1) { error = acpi_cmbat_get_battinfo(-1, battinfo); goto out; } else { error = acpi_battery_get_battdesc(unit, &battdesc); if (error != 0) goto out; switch (battdesc.type) { case ACPI_BATT_TYPE_CMBAT: error = acpi_cmbat_get_battinfo(battdesc.phys_unit, battinfo); break; default: error = ENXIO; break; } } out: return (error); } int acpi_battery_get_info_expire(void) { return (acpi_battery_info_expire); } static int acpi_battery_ioctl(u_long cmd, caddr_t addr, void *arg) { union acpi_battery_ioctl_arg *ioctl_arg; int error, logical_unit; ioctl_arg = (union acpi_battery_ioctl_arg *)addr; error = 0; /* * No security check required: information retrieval only. If * new functions are added here, a check might be required. */ switch (cmd) { case ACPIIO_BATT_GET_UNITS: *(int *)addr = acpi_battery_get_units(); break; case ACPIIO_BATT_GET_BATTDESC: logical_unit = ioctl_arg->unit; error = acpi_battery_get_battdesc(logical_unit, &ioctl_arg->battdesc); break; case ACPIIO_BATT_GET_BATTINFO: logical_unit = ioctl_arg->unit; error = acpi_battery_get_battinfo(logical_unit, &ioctl_arg->battinfo); break; default: error = EINVAL; break; } return (error); } static int acpi_battery_sysctl(SYSCTL_HANDLER_ARGS) { int val, error; acpi_battery_get_battinfo(-1, &acpi_battery_battinfo); val = *(u_int *)oidp->oid_arg1; error = sysctl_handle_int(oidp, &val, 0, req); return (error); } static int acpi_battery_init(void) { struct acpi_softc *sc; device_t dev; int error; dev = devclass_get_device(devclass_find("acpi"), 0); if (dev == NULL) return (ENXIO); sc = device_get_softc(dev); if (sc == NULL) return (ENXIO); error = 0; TAILQ_INIT(&acpi_batteries); acpi_batteries_initted = 1; error = acpi_register_ioctl(ACPIIO_BATT_GET_UNITS, acpi_battery_ioctl, NULL); if (error != 0) return (error); error = acpi_register_ioctl(ACPIIO_BATT_GET_BATTDESC, acpi_battery_ioctl, NULL); if (error != 0) return (error); error = acpi_register_ioctl(ACPIIO_BATT_GET_BATTINFO, acpi_battery_ioctl, NULL); if (error != 0) return (error); sysctl_ctx_init(&sc->acpi_battery_sysctl_ctx); sc->acpi_battery_sysctl_tree = SYSCTL_ADD_NODE(&sc->acpi_battery_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO, "battery", CTLFLAG_RD, 0, ""); SYSCTL_ADD_PROC(&sc->acpi_battery_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree), OID_AUTO, "life", CTLTYPE_INT | CTLFLAG_RD, &acpi_battery_battinfo.cap, 0, acpi_battery_sysctl, "I", ""); SYSCTL_ADD_PROC(&sc->acpi_battery_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree), OID_AUTO, "time", CTLTYPE_INT | CTLFLAG_RD, &acpi_battery_battinfo.min, 0, acpi_battery_sysctl, "I", ""); SYSCTL_ADD_PROC(&sc->acpi_battery_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree), OID_AUTO, "state", CTLTYPE_INT | CTLFLAG_RD, &acpi_battery_battinfo.state, 0, acpi_battery_sysctl, "I", ""); SYSCTL_ADD_INT(&sc->acpi_battery_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree), OID_AUTO, "units", CTLFLAG_RD, &acpi_batteries_units, 0, ""); SYSCTL_ADD_INT(&sc->acpi_battery_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree), OID_AUTO, "info_expire", CTLFLAG_RD | CTLFLAG_RW, &acpi_battery_info_expire, 0, ""); return (error); } int acpi_battery_register(int type, int phys_unit) { struct acpi_batteries *bp; int error; error = 0; bp = malloc(sizeof(*bp), M_ACPIBATT, M_INTWAIT); bp->battdesc.type = type; bp->battdesc.phys_unit = phys_unit; if (acpi_batteries_initted == 0) { if ((error = acpi_battery_init()) != 0) { free(bp, M_ACPIBATT); return (error); } } TAILQ_INSERT_TAIL(&acpi_batteries, bp, link); acpi_batteries_units++; return (0); }