117 lines
3.6 KiB
Groff
117 lines
3.6 KiB
Groff
.\"-
|
|
.\" Copyright (c) 2008 Nathan Whitehorn <nwhitehorn@FreeBSD.org>
|
|
.\" 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 ``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 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.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd December 6, 2008
|
|
.Dt PMU 4
|
|
.Os
|
|
.Sh NAME
|
|
.Nm pmu
|
|
.Nd Apple PMU99 Power Management Driver
|
|
.Sh SYNOPSIS
|
|
To compile this driver into the kernel,
|
|
place the following lines in your
|
|
kernel configuration file:
|
|
.Bd -ragged -offset indent
|
|
.Cd "device adb"
|
|
.Cd "device pmu"
|
|
.Ed
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
driver provides support for the Power Management Unit (PMU) found in Apple
|
|
Core99 hardware.
|
|
This includes late G3 laptops, all G4 machines, early G5
|
|
desktops and all G5 XServes.
|
|
.Pp
|
|
The Apple PMU controller is a multi-purpose ASIC that provides power
|
|
management and thermal control, as well as an ADB bus for the internal
|
|
keyboard and mouse on laptops.
|
|
.Sh HARDWARE
|
|
Chips supported by the
|
|
.Nm
|
|
driver include:
|
|
.Pp
|
|
.Bl -bullet -compact
|
|
.It
|
|
Apple KeyLargo PMU
|
|
.It
|
|
Apple K2-KeyLargo PMU
|
|
.El
|
|
.Sh SYSCTL VARIABLES
|
|
The
|
|
.Nm
|
|
driver provides power management services in addition to an
|
|
.Xr adb 4
|
|
interface.
|
|
The following sysctls can be used to control the
|
|
power management behavior and to examine current system power and
|
|
thermal conditions.
|
|
.Bl -tag -width indent
|
|
.It Va dev.pmu.%d.server_mode
|
|
Restart after power failure behavior (1 causes system to reboot after power
|
|
cut, 0 causes system to remain off).
|
|
.It Va dev.pmu.%d.batteries.%d.present
|
|
Indicates whether the relevant battery is inserted.
|
|
.It Va dev.pmu.%d.batteries.%d.charging
|
|
Indicates whether the battery is currently charging.
|
|
.It Va dev.pmu.%d.batteries.%d.charge
|
|
The current battery charge, in milliamp hours.
|
|
.It Va dev.pmu.%d.batteries.%d.maxcharge
|
|
The battery's self-reported maximum charge, in milliamp hours.
|
|
.It Va dev.pmu.%d.batteries.%d.rate
|
|
The current into the battery, in milliamps.
|
|
While the battery is discharging,
|
|
this will be negative.
|
|
.It Va dev.pmu.%d.batteries.%d.voltage
|
|
Battery voltage, in millivolts.
|
|
.It Va dev.pmu.%d.batteries.%d.time
|
|
Estimated time until full battery charge (or discharge), in minutes.
|
|
.It Va dev.pmu.%d.batteries.%d.life
|
|
Current fraction of the battery's maximum charge, in percent.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr acpi 4 ,
|
|
.Xr adb 4 ,
|
|
.Xr led 4
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
device driver appeared in
|
|
.Nx 4.0 ,
|
|
and then in
|
|
.Fx 8.0 .
|
|
.Sh AUTHORS
|
|
.An -nosplit
|
|
The
|
|
.Nm
|
|
driver was written by
|
|
.An Michael Lorenz
|
|
.Aq macallan@NetBSD.org
|
|
and ported to FreeBSD by
|
|
.An Nathan Whitehorn
|
|
.Aq nwhitehorn@FreeBSD.org .
|