.\" $NetBSD: acpi.4,v 1.29 2008/09/21 11:12:36 wiz Exp $ .\" .\" Copyright (c) 2002, 2004 The NetBSD Foundation, Inc. .\" 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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. .\" .Dd September 21, 2008 .Dt ACPI 4 .Os .Sh NAME .Nm acpi .Nd Advanced Configuration and Power Interface .Sh SYNOPSIS .Cd "acpi0 at mainbus0" .Cd "acpiacad* at acpi?" .Cd "acpibat* at acpi?" .Cd "acpibut* at acpi?" .Cd "acpiec* at acpi?" .Cd "acpilid* at acpi?" .Cd "acpitz* at acpi?" .Cd "attimer* at acpi?" .Cd "aiboost* at acpi?" .Cd "com* at acpi?" .Cd "fdc* at acpi?" .Cd "hpet* at acpi?" .Cd "joy* at acpi?" .Cd "lpt* at acpi?" .Cd "mpu* at acpi?" .Cd "npx* at acpi?" .Cd "pckbc* at acpi?" .Cd "pcppi* at acpi?" .Cd "sony* at acpi?" .Cd "spic* at acpi?" .Cd "ug* at acpi?" .Cd "vald* at acpi?" .Cd "wss* at acpi?" .Cd "ym* at acpi?" .Pp .Cd "options ACPI_DEBUG" .Cd "options ACPIVERBOSE" .Cd "options ACPI_ACTIVATE_DEV" .Cd "options ACPICA_PEDANTIC" .Cd "options ACPI_DSDT_OVERRIDE" .Sh DESCRIPTION .Nx provides machine-independent bus support for .Tn ACPI devices and includes several .Tn ACPI device drivers. .Pp The .Nx implementation of .Tn ACPI integrates Intel's ACPI Component Architecture (aka ACPI-CA) for the OS-independent part. The ACPI-CA provides OS-neutral ACPI functionalities such as ACPI BIOS table support, an ACPI event framework and an AML (ACPI Machine Language) interpreter. .Pp Options: .Bl -tag -width ACPI_DSDT_FILE__filename_XX -offset 3n .It Dv ACPI_DEBUG Enable ACPI debugging message outputs. .It Dv ACPI_ACTIVATE_DEV Determine if the ACPI driver should attempt to activate inactive devices. The default is off. .It Dv ACPICA_PEDANTIC Force strict conformance to the ACPI specification in the ACPI-CA. Do not enable this option unless you are debugging. .It Dv ACPI_DSDT_OVERRIDE Force a given DSDT instead of the BIOS-supplied version. Use .Dv ACPI_DSDT_FILE to specify a DSDT. .It Dv ACPI_DSDT_FILE="filename" If .Dv ACPI_DSDT_FILE is not specified, default to .Dq dsdt.hex in the build directory. .El .Ss sysctl support Two .Xr sysctl 8 settings are especially relevant for .Nm : .Li hw.acpi_supported_states and .Li machdep.acpi_vbios_reset . .Li hw.acpi_supported_states is a list of the supported states (see .Xr sysctl 7 ) . .Li machdep.acpi_vbios_reset defines the handling of the graphics card. The supported values for this are: .Bl -tag -width 2 .It 0 No attempt to reset the VGA controller is done. .It 1 Call the VGA BIOS when still in real mode. This can result in direct reboots. In that case, use .Sq 2 or .Ic vbetool post from the .Pa pkgsrc/sysutils/vbetool package. .It 2 Call the VGA BIOS using the in-kernel x86 emulator. .El .Sh SUPPORTED DEVICES .Nx .Tn ACPI supports several machine-dependent and machine-independent devices: .Ss machine-independent devices .Bl -tag -width pcdisplay -offset indent .It acpiacad .Tn ACPI AC adapters. .It acpibat .Tn ACPI Control Method Batteries. .It acpibut .Tn ACPI power and sleep buttons. .It acpiec .Tn ACPI Embedded Controllers. .It acpilid .Tn ACPI lid switches. .It acpitz .Tn ACPI thermal zones. .It attimer AT Timer. .It aiboost ASUS AI Booster Hardware monitor. .It com NS8250-, NS16450-, and NS16550-based serial ports. .It fdc Floppy disk controllers. .It hpet High Precision Event Timer. .It joy Joystick/Game port interface. .It lpt Standard ISA parallel port interface. .It mpu Roland MPU-401 (compatible) MIDI UART. .It pcppi AT-style speaker sound. .It ug Abit uGuru Hardware monitor. .It wss Windows Sound System-compatible sound cards based on the AD1848 and compatible chips. .It ym Yamaha OPL3-SA2 and OPL3-SA3 audio device driver. .El .Ss i386-dependent devices .Bl -tag -width pcdisplay -offset indent .It npx i386 numeric processing extension coprocessor. .It pckbc PC keyboard controllers. .It sony Sony Miscellaneous Controller .It spic Sony programmable I/O controller. .It vald Toshiba Libretto device. .El .Sh SEE ALSO .Xr acpiacad 4 , .Xr acpibat 4 , .Xr acpibut 4 , .Xr acpiec 4 , .Xr acpilid 4 , .Xr acpitz 4 , .Xr aiboost 4 , .Xr apm 4 , .Xr attimer 4 , .Xr com 4 , .Xr fdc 4 , .Xr joy 4 , .Xr lpt 4 , .Xr mpu 4 , .Xr npx 4 , .Xr pci 4 , .Xr pckbc 4 , .Xr pcppi 4 , .Xr sony 4 , .Xr spic 4 , .Xr ug 4 , .Xr vald 4 , .Xr wss 4 , .Xr ym 4 , .Xr acpidump 8 , .Xr amldb 8 .Rs .%T ACPI specification .%O http://www.acpi.info/ .Re .Rs .%T Intel ACPI CA (Component Architecture) .%O http://developer.intel.com/technology/iapc/acpi/ .Re .Sh HISTORY The .Nm driver appeared in .Nx 1.6 . .Sh BUGS Most of the .Tn ACPI power management functionalities are not implemented.