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9aa72f7404
* Use ACPI_BATT_UNKNOWN instead of constants * Use maxunit instead of a count of devices since we may have sparse battery devices in the future. Only userland should be using unit numbers anyway, so provide a translation function. (Kernel use of batteries should be restricted to looking up a device_t and calling methods directly. * Don't check acpi_BatteryIsPresent() in acpi_battery. Leave it up to the hardware-specific driver (i.e. cmbat) since smart batteries seem to not report the "battery present" flag. * Convert mA to mW if the battery uses those units. CM-batteries only used mW so this deficiency went unnoticed. * Clean strings reported in the battery info from any control chars. * Only dereference the unit from ioctl_arg if the full struct is present. Unit wouldn't have been used later if it wasn't present but this is cleaner. Translate the unit if it's not ACPI_BATTERY_ALL_UNITS. * bzero structs before returning them to usermode for future compat. Most of this work was submitted by Hans Petter Selasky and then majorly reworked by myself. Submitted by: Hans Petter Selasky <hselasky / c2i.net>
109 lines
4.0 KiB
C
109 lines
4.0 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; /* Units (mW or mA). */
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#define ACPI_BIF_UNITS_MW 0 /* Capacity in mWh, rate in mW. */
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#define ACPI_BIF_UNITS_MA 1 /* Capacity in mAh, rate in mA. */
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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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#define ACPI_BATT_UNKNOWN 0xffffffff /* _BST or _BIF value unknown. */
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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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