76f6fe4f31
(i.e., smart battery) and fix various bugs found during the cleanup.
API changes:
* kernel access:
Access to individual batteries is now via devclass_find("battery").
Introduce new methods ACPI_BATT_GET_STATUS (for _BST-formatted data) and
ACPI_BATT_GET_INFO (for _BIF-formatted data). The helper function
acpi_battery_get_battinfo() now takes a device_t instead of a unit #
argument. If dev is NULL, this signifies all batteries.
* ioctl access:
The ACPIIO_BATT_GET_TYPE and ACPIIO_BATT_GET_BATTDESC ioctls have been
removed. Since there is now no need for a mapping between "virtual" unit
and physical unit, usermode programs can just specify the unit directly and
skip the old translation steps. In fact, acpiconf(8) was actually already
doing this and virtual unit was the same as physical unit in all cases
since there was previously only one battery type (acpi_cmbat). Additionally,
we now map the ACPIIO_BATT_GET_BIF and ACPIIO_BATT_GET_BST ioctls for all
batteries, if they provide the associated methods.
* apm compatibility device/ioctls: no change
* sysctl: no change
Since most third-party applications use the apm(4) compat interface, there
should be very few affected applications (if any).
Reviewed by: bruno
MFC after: 5 days
106 lines
3.8 KiB
C
106 lines
3.8 KiB
C
/*-
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* Copyright (c) 1999 Takanori Watanabe <takawata@jp.freebsd.org>
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* Copyright (c) 1999 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
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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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#ifndef _ACPIIO_H_
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#define _ACPIIO_H_
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/*
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* Core ACPI subsystem ioctls
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*/
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#define ACPIIO_SETSLPSTATE _IOW('P', 3, int)
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struct acpi_battinfo {
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int cap; /* percent */
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int min; /* remaining time (in minutes) */
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int state; /* battery state */
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int rate; /* emptying rate */
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};
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#define ACPI_CMBAT_MAXSTRLEN 32
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struct acpi_bif {
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uint32_t units; /* 0 for mWh, 1 for mAh */
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uint32_t dcap; /* Design Capacity */
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uint32_t lfcap; /* Last Full capacity */
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uint32_t btech; /* Battery Technology */
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uint32_t dvol; /* Design voltage (mV) */
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uint32_t wcap; /* WARN capacity */
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uint32_t lcap; /* Low capacity */
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uint32_t gra1; /* Granularity 1 (Warn to Low) */
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uint32_t gra2; /* Granularity 2 (Full to Warn) */
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char model[ACPI_CMBAT_MAXSTRLEN]; /* model identifier */
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char serial[ACPI_CMBAT_MAXSTRLEN]; /* Serial number */
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char type[ACPI_CMBAT_MAXSTRLEN]; /* Type */
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char oeminfo[ACPI_CMBAT_MAXSTRLEN]; /* OEM infomation */
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};
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struct acpi_bst {
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uint32_t state; /* Battery State */
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uint32_t rate; /* Present Rate */
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uint32_t cap; /* Remaining Capacity */
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uint32_t volt; /* Present Voltage */
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};
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#define ACPI_BATT_STAT_DISCHARG 0x0001
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#define ACPI_BATT_STAT_CHARGING 0x0002
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#define ACPI_BATT_STAT_CRITICAL 0x0004
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#define ACPI_BATT_STAT_NOT_PRESENT 0x0007
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#define ACPI_BATT_STAT_MAX 0x0007
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union acpi_battery_ioctl_arg {
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int unit; /* Device unit or ACPI_BATTERY_ALL_UNITS. */
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struct acpi_battinfo battinfo;
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struct acpi_bif bif;
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struct acpi_bst bst;
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};
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#define ACPI_BATTERY_ALL_UNITS (-1)
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/* Common battery ioctls */
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#define ACPIIO_BATT_GET_UNITS _IOR('B', 0x01, int)
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#define ACPIIO_BATT_GET_BATTINFO _IOWR('B', 0x03, union acpi_battery_ioctl_arg)
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#define ACPIIO_BATT_GET_BIF _IOWR('B', 0x10, union acpi_battery_ioctl_arg)
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#define ACPIIO_BATT_GET_BST _IOWR('B', 0x11, union acpi_battery_ioctl_arg)
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/* Control Method battery ioctls (deprecated) */
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#define ACPIIO_CMBAT_GET_BIF ACPIIO_BATT_GET_BIF
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#define ACPIIO_CMBAT_GET_BST ACPIIO_BATT_GET_BST
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/* Get AC adapter status. */
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#define ACPIIO_ACAD_GET_STATUS _IOR('A', 1, int)
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#ifdef _KERNEL
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typedef int (*acpi_ioctl_fn)(u_long cmd, caddr_t addr, void *arg);
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extern int acpi_register_ioctl(u_long cmd, acpi_ioctl_fn fn, void *arg);
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extern void acpi_deregister_ioctl(u_long cmd, acpi_ioctl_fn fn);
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#endif
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#endif /* !_ACPIIO_H_ */
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