/* * Copyright (c) 2006 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ #ifdef KERNEL_PRIVATE #ifndef _I386_HPET_H_ #define _I386_HPET_H_ /* * HPET kernel functions to support the HPET KEXT and the * power management KEXT. */ /* * Memory mapped registers for the HPET */ typedef struct hpetReg { uint64_t GCAP_ID; /* General capabilities */ uint64_t rsv1; uint64_t GEN_CONF; /* General configuration */ uint64_t rsv2; uint64_t GINTR_STA; /* General Interrupt status */ uint64_t rsv3[25]; uint64_t MAIN_CNT; /* Main counter */ uint64_t rsv4; uint64_t TIM0_CONF; /* Timer 0 config and cap */ #define TIM_CONF 0 #define Tn_INT_ENB_CNF 4 uint64_t TIM0_COMP; /* Timer 0 comparator */ #define TIM_COMP 8 uint64_t rsv5[2]; uint64_t TIM1_CONF; /* Timer 1 config and cap */ uint64_t TIM1_COMP; /* Timer 1 comparator */ uint64_t rsv6[2]; uint64_t TIM2_CONF; /* Timer 2 config and cap */ uint64_t TIM2_COMP; /* Timer 2 comparator */ uint64_t rsv7[2]; } hpetReg; typedef struct hpetReg hpetReg_t; struct hpetInfo { uint64_t hpetCvtt2n; uint64_t hpetCvtn2t; uint64_t tsc2hpet; uint64_t hpet2tsc; uint64_t bus2hpet; uint64_t hpet2bus; uint32_t rcbaArea; uint32_t rcbaAreap; }; typedef struct hpetInfo hpetInfo_t; extern uint64_t hpetFemto; extern uint64_t hpetFreq; extern uint64_t hpetCvtt2n; extern uint64_t hpetCvtn2t; extern uint64_t tsc2hpet; extern uint64_t hpet2tsc; extern uint64_t bus2hpet; extern uint64_t hpet2bus; extern uint32_t rcbaArea; extern uint32_t rcbaAreap; extern void map_rcbaAread(void); extern void hpet_init(void); extern void hpet_save(void); extern void hpet_restore(void); #ifdef XNU_KERNEL_PRIVATE extern int HPETInterrupt(void); #endif extern uint64_t rdHPET(void); extern void hpet_get_info(hpetInfo_t *info); #define hpetAddr 0xFED00000 #define hptcAE 0x80 #endif /* _I386_HPET_H_ */ #endif /* KERNEL_PRIVATE */