projects / apple / xnu.git / blame
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|---|---|---|
| 5d5c5d0d A |
1 | /* |
| 2 | * Copyright (c) 2006 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_OSREFERENCE_HEADER_START@ | |
| 5 | * | |
| 6 | * This file contains Original Code and/or Modifications of Original Code | |
| 7 | * as defined in and that are subject to the Apple Public Source License | |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 9 | * compliance with the License. The rights granted to you under the | |
| 10 | * License may not be used to create, or enable the creation or | |
| 11 | * redistribution of, unlawful or unlicensed copies of an Apple operating | |
| 12 | * system, or to circumvent, violate, or enable the circumvention or | |
| 13 | * violation of, any terms of an Apple operating system software license | |
| 14 | * agreement. | |
| 15 | * | |
| 16 | * Please obtain a copy of the License at | |
| 17 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 18 | * file. | |
| 19 | * | |
| 20 | * The Original Code and all software distributed under the License are | |
| 21 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 22 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 23 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 24 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 25 | * Please see the License for the specific language governing rights and | |
| 26 | * limitations under the License. | |
| 27 | * | |
| 28 | * @APPLE_LICENSE_OSREFERENCE_HEADER_END@ | |
| 29 | */ | |
| 30 | #ifdef KERNEL_PRIVATE | |
| 31 | #ifndef _I386_HPET_H_ | |
| 32 | #define _I386_HPET_H_ | |
| 33 | ||
| 34 | /* | |
| 35 | * HPET kernel functions to support the HPET KEXT and the | |
| 36 | * power management KEXT. | |
| 37 | */ | |
| 38 | ||
| 39 | ||
| 40 | /* | |
| 41 | * Memory mapped registers for the HPET | |
| 42 | */ | |
| 43 | typedef struct hpetReg { | |
| 44 | uint64_t GCAP_ID; /* General capabilities */ | |
| 45 | uint64_t rsv1; | |
| 46 | uint64_t GEN_CONF; /* General configuration */ | |
| 47 | uint64_t rsv2; | |
| 48 | uint64_t GINTR_STA; /* General Interrupt status */ | |
| 49 | uint64_t rsv3[25]; | |
| 50 | uint64_t MAIN_CNT; /* Main counter */ | |
| 51 | uint64_t rsv4; | |
| 52 | uint64_t TIM0_CONF; /* Timer 0 config and cap */ | |
| 53 | #define TIM_CONF 0 | |
| 54 | #define Tn_INT_ENB_CNF 4 | |
| 55 | uint64_t TIM0_COMP; /* Timer 0 comparator */ | |
| 56 | #define TIM_COMP 8 | |
| 57 | uint64_t rsv5[2]; | |
| 58 | uint64_t TIM1_CONF; /* Timer 1 config and cap */ | |
| 59 | uint64_t TIM1_COMP; /* Timer 1 comparator */ | |
| 60 | uint64_t rsv6[2]; | |
| 61 | uint64_t TIM2_CONF; /* Timer 2 config and cap */ | |
| 62 | uint64_t TIM2_COMP; /* Timer 2 comparator */ | |
| 63 | uint64_t rsv7[2]; | |
| 64 | } hpetReg; | |
| 65 | typedef struct hpetReg hpetReg_t; | |
| 66 | ||
| 67 | struct hpetInfo | |
| 68 | { | |
| 69 | uint64_t hpetCvtt2n; | |
| 70 | uint64_t hpetCvtn2t; | |
| 71 | uint64_t tsc2hpet; | |
| 72 | uint64_t hpet2tsc; | |
| 73 | uint64_t bus2hpet; | |
| 74 | uint64_t hpet2bus; | |
| 75 | uint32_t rcbaArea; | |
| 76 | uint32_t rcbaAreap; | |
| 77 | }; | |
| 78 | typedef struct hpetInfo hpetInfo_t; | |
| 79 | ||
| 80 | extern uint64_t hpetFemto; | |
| 81 | extern uint64_t hpetFreq; | |
| 82 | extern uint64_t hpetCvtt2n; | |
| 83 | extern uint64_t hpetCvtn2t; | |
| 84 | extern uint64_t tsc2hpet; | |
| 85 | extern uint64_t hpet2tsc; | |
| 86 | extern uint64_t bus2hpet; | |
| 87 | extern uint64_t hpet2bus; | |
| 88 | ||
| 89 | extern uint32_t rcbaArea; | |
| 90 | extern uint32_t rcbaAreap; | |
| 91 | ||
| 92 | extern void map_rcbaAread(void); | |
| 93 | extern void hpet_init(void); | |
| 94 | ||
| 95 | extern void hpet_save(void); | |
| 96 | extern void hpet_restore(void); | |
| 97 | ||
| 98 | #ifdef XNU_KERNEL_PRIVATE | |
| 99 | extern int HPETInterrupt(void); | |
| 100 | #endif | |
| 101 | ||
| 102 | extern uint64_t rdHPET(void); | |
| 103 | extern void hpet_get_info(hpetInfo_t *info); | |
| 104 | ||
| 105 | #define hpetAddr 0xFED00000 | |
| 106 | #define hptcAE 0x80 | |
| 107 | ||
| 108 | #endif /* _I386_HPET_H_ */ | |
| 109 | ||
| 110 | #endif /* KERNEL_PRIVATE */ |