$NetBSD: tda.4,v 1.3 2013/03/14 19:18:32 njoly Exp $
Copyright (c) 2013 The NetBSD Foundation, Inc.
All rights reserved.
This code is derived from software contributed to The NetBSD Foundation
by Julian Coleman
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 February 2, 2013 .Dt TDA 4 sparc64 .Os .Sh NAME .Nm tda .Nd TDA8444 fan speed controller .Sh SYNOPSIS .Cd "tda0 at iic1 addr 0x24: fan-control" .Sh DESCRIPTION The .Nm driver provides support for the TDA8444 DAC used to control the fan speeds in Sun Blade 1000 and Blade 2000 systems. The speed of the CPU fan and of the system fan are automatically adjusted every 60 seconds, based on the currently reported CPU and system temperatures, respectively.
Copyright (c) 2013 The NetBSD Foundation, Inc.
All rights reserved.
This code is derived from software contributed to The NetBSD Foundation
by Julian Coleman
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 February 2, 2013 .Dt TDA 4 sparc64 .Os .Sh NAME .Nm tda .Nd TDA8444 fan speed controller .Sh SYNOPSIS .Cd "tda0 at iic1 addr 0x24: fan-control" .Sh DESCRIPTION The .Nm driver provides support for the TDA8444 DAC used to control the fan speeds in Sun Blade 1000 and Blade 2000 systems. The speed of the CPU fan and of the system fan are automatically adjusted every 60 seconds, based on the currently reported CPU and system temperatures, respectively.
p The speed-related values are made available through the .Xr envstat 8 interface. The range of the values are: l -column -offset indent ".Sy System temperature" ".Sy Minimum" ".Sy Maximum" t Sy Ta Sy Minimum Ta Sy Maximum t Li CPU temperature Ta <=57 Ta >=67 t Li System temperature Ta <=20 Ta >=30 t Li Speed value Ta 12 Ta 63 .El .Sh SEE ALSO .Xr admtemp 4 , .Xr envstat 8 .Sh BUGS The temperatures are reported as .Sq internal and .Sq external instead of .Sq system and .Sq CPU , respectively.
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