71d9d375b8
After this change, low level cpuidle drivers load the generic cpuidle module if they can support the underlying platform. change the intel cpuidle driver accordingly, now it's loaded by acpi bus manager during boot, although it doesn't depend on acpi Signed-off-by: Fredrik Holmqvist <fredrik.holmqvist@gmail.com>
58 lines
912 B
C
58 lines
912 B
C
/*
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* Copyright 2012, Haiku, Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _CPUIDLE_MODULE_H
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#define _CPUIDLE_MODULE_H
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#include <module.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define CPUIDLE_CSTATE_MAX 8
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#define CSTATE_NAME_LENGTH 32
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#define B_CPUIDLE_MODULE_NAME "generic/cpuidle/v1"
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struct CpuidleStat {
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uint64 usageCount;
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bigtime_t usageTime;
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};
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struct CpuidleInfo {
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int32 cstateSleep;
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CpuidleStat stats[CPUIDLE_CSTATE_MAX];
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};
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struct CpuidleDevice;
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struct CpuidleCstate {
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char name[CSTATE_NAME_LENGTH];
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int32 latency;
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int32 (*EnterIdle)(int32 state, CpuidleDevice *device);
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void *pData;
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};
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struct CpuidleDevice {
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CpuidleCstate cStates[CPUIDLE_CSTATE_MAX];
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int32 cStateCount;
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};
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struct CpuidleModuleInfo {
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module_info info;
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status_t (*AddDevice)(CpuidleDevice *device);
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};
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#ifdef __cplusplus
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}
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#endif
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#endif // _CPUIDLE_MODULE_H
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