57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
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/*
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* Copyright (C) 2009 Apple Inc. All rights reserved.
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*
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* This document is the property of Apple Inc.
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* It is considered confidential and proprietary.
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*
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* This document may not be reproduced or transmitted in any form,
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* in whole or in part, without the express written permission of
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* Apple Inc.
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*/
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#ifndef __DRIVERS_THERMAL_H
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#define __DRIVERS_THERMAL_H
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#include <sys/types.h>
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__BEGIN_DECLS
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/*
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* Thermal management.
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*
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* Thermal status is reported via the following nodes in the MIB:
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*
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* Thermal.Temperature unit current temperature in degrees Celsius.
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* Thermal.Fanspeed current fan speed
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*/
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/*
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* thermal_init
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*
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* Initialise the thermal management system.
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*
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* If the default target is passed as 0, it is assumed the system already
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* knows the default.
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*/
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int thermal_init(u_int32_t default_target);
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/*
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* thermal_set_target_temperature
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*
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* Set the target temperature to be maintained by the thermal system in degrees Celsius.
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*/
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int thermal_set_target_temperature(u_int32_t temperature);
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/*
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* thermal_soft_regulation_fail
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*
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* Called when the system is no longer able to provide services that may be required
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* to perform soft thermal regulation, e.g. during a panic. This allows a soft
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* regulation algorithm to e.g. set the cooling system to maximum, as long as care is
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* taken.
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*/
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void thermal_soft_regulation_fail(void);
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__END_DECLS
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#endif /* __DRIVERS_THERMAL_H */
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