2 * Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@jp.freebsd.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/sys/dev/acpica/acpi_battery.c,v 1.8.2.1 2003/08/22 20:49:20 jhb Exp $
27 * $DragonFly: src/sys/dev/acpica/Attic/acpi_battery.c,v 1.2 2004/05/05 22:19:22 dillon Exp $
30 #include "opt_acpi.h" /* XXX trim includes */
31 #include <sys/param.h>
32 #include <sys/kernel.h>
34 #include <sys/malloc.h>
37 #include <sys/ioccom.h>
38 #include <sys/reboot.h>
39 #include <sys/sysctl.h>
40 #include <sys/ctype.h>
42 #include <machine/clock.h>
44 #include <machine/resource.h>
48 #include <dev/acpica/acpivar.h>
49 #include <dev/acpica/acpiio.h>
51 MALLOC_DEFINE(M_ACPIBATT, "acpibatt", "ACPI generic battery data");
54 * ACPI Battery Abstruction Layer.
57 struct acpi_batteries {
58 TAILQ_ENTRY(acpi_batteries) link;
59 struct acpi_battdesc battdesc;
62 static TAILQ_HEAD(,acpi_batteries) acpi_batteries;
63 static int acpi_batteries_initted = 0;
64 static int acpi_batteries_units = 0;
65 static int acpi_battery_info_expire = 5;
66 static struct acpi_battinfo acpi_battery_battinfo;
69 acpi_battery_get_units(void)
72 return (acpi_batteries_units);
76 acpi_battery_get_battdesc(int logical_unit, struct acpi_battdesc *battdesc)
79 struct acpi_batteries *bp;
81 if (logical_unit < 0 || logical_unit >= acpi_batteries_units) {
86 TAILQ_FOREACH(bp, &acpi_batteries, link) {
87 if (logical_unit == i) {
88 battdesc->type = bp->battdesc.type;
89 battdesc->phys_unit = bp->battdesc.phys_unit;
99 acpi_battery_get_battinfo(int unit, struct acpi_battinfo *battinfo)
102 struct acpi_battdesc battdesc;
106 error = acpi_cmbat_get_battinfo(-1, battinfo);
109 if ((error = acpi_battery_get_battdesc(unit, &battdesc)) != 0) {
112 switch (battdesc.type) {
113 case ACPI_BATT_TYPE_CMBAT:
114 error = acpi_cmbat_get_battinfo(battdesc.phys_unit,
127 acpi_battery_get_info_expire(void)
130 return (acpi_battery_info_expire);
134 acpi_battery_ioctl(u_long cmd, caddr_t addr, void *arg)
138 union acpi_battery_ioctl_arg *ioctl_arg;
140 ioctl_arg = (union acpi_battery_ioctl_arg *)addr;
144 * No security check required: information retrieval only. If
145 * new functions are added here, a check might be required.
149 case ACPIIO_BATT_GET_UNITS:
150 *(int *)addr = acpi_battery_get_units();
153 case ACPIIO_BATT_GET_BATTDESC:
154 logical_unit = ioctl_arg->unit;
155 error = acpi_battery_get_battdesc(logical_unit, &ioctl_arg->battdesc);
158 case ACPIIO_BATT_GET_BATTINFO:
159 logical_unit = ioctl_arg->unit;
160 error = acpi_battery_get_battinfo(logical_unit,
161 &ioctl_arg->battinfo);
173 acpi_battery_sysctl(SYSCTL_HANDLER_ARGS)
178 acpi_battery_get_battinfo(-1, &acpi_battery_battinfo);
179 val = *(u_int *)oidp->oid_arg1;
180 error = sysctl_handle_int(oidp, &val, 0, req);
185 acpi_battery_init(void)
188 struct acpi_softc *sc;
191 if ((dev = devclass_get_device(devclass_find("acpi"), 0)) == NULL) {
194 if ((sc = device_get_softc(dev)) == NULL) {
200 TAILQ_INIT(&acpi_batteries);
201 acpi_batteries_initted = 1;
203 if ((error = acpi_register_ioctl(ACPIIO_BATT_GET_UNITS,
204 acpi_battery_ioctl, NULL)) != 0) {
207 if ((error = acpi_register_ioctl(ACPIIO_BATT_GET_BATTDESC,
208 acpi_battery_ioctl, NULL)) != 0) {
211 if ((error = acpi_register_ioctl(ACPIIO_BATT_GET_BATTINFO,
212 acpi_battery_ioctl, NULL)) != 0) {
216 sysctl_ctx_init(&sc->acpi_battery_sysctl_ctx);
217 sc->acpi_battery_sysctl_tree = SYSCTL_ADD_NODE(&sc->acpi_battery_sysctl_ctx,
218 SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
219 OID_AUTO, "battery", CTLFLAG_RD, 0, "");
220 SYSCTL_ADD_PROC(&sc->acpi_battery_sysctl_ctx,
221 SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree),
222 OID_AUTO, "life", CTLTYPE_INT | CTLFLAG_RD,
223 &acpi_battery_battinfo.cap, 0, acpi_battery_sysctl, "I", "");
224 SYSCTL_ADD_PROC(&sc->acpi_battery_sysctl_ctx,
225 SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree),
226 OID_AUTO, "time", CTLTYPE_INT | CTLFLAG_RD,
227 &acpi_battery_battinfo.min, 0, acpi_battery_sysctl, "I", "");
228 SYSCTL_ADD_PROC(&sc->acpi_battery_sysctl_ctx,
229 SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree),
230 OID_AUTO, "state", CTLTYPE_INT | CTLFLAG_RD,
231 &acpi_battery_battinfo.state, 0, acpi_battery_sysctl, "I", "");
232 SYSCTL_ADD_INT(&sc->acpi_battery_sysctl_ctx,
233 SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree),
234 OID_AUTO, "units", CTLFLAG_RD, &acpi_batteries_units, 0, "");
235 SYSCTL_ADD_INT(&sc->acpi_battery_sysctl_ctx,
236 SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree),
237 OID_AUTO, "info_expire", CTLFLAG_RD | CTLFLAG_RW,
238 &acpi_battery_info_expire, 0, "");
244 acpi_battery_register(int type, int phys_unit)
247 struct acpi_batteries *bp;
250 bp = malloc(sizeof(*bp), M_ACPIBATT, M_INTWAIT);
251 bp->battdesc.type = type;
252 bp->battdesc.phys_unit = phys_unit;
253 if (acpi_batteries_initted == 0) {
254 if ((error = acpi_battery_init()) != 0) {
255 free(bp, M_ACPIBATT);
260 TAILQ_INSERT_TAIL(&acpi_batteries, bp, link);
261 acpi_batteries_units++;