mirror of
https://github.com/darlinghq/darling-xnu.git
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125 lines
4.0 KiB
C
125 lines
4.0 KiB
C
/*
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* Copyright (c) 2006 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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#ifdef KERNEL_PRIVATE
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#ifndef _I386_HPET_H_
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#define _I386_HPET_H_
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/*
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* HPET kernel functions to support the HPET KEXT and the
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* power management KEXT.
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*/
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/*
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* Memory mapped registers for the HPET
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*/
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typedef struct hpetReg {
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uint64_t GCAP_ID; /* General capabilities */
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uint64_t rsv1;
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uint64_t GEN_CONF; /* General configuration */
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uint64_t rsv2;
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uint64_t GINTR_STA; /* General Interrupt status */
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uint64_t rsv3[25];
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uint64_t MAIN_CNT; /* Main counter */
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uint64_t rsv4;
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uint64_t TIM0_CONF; /* Timer 0 config and cap */
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#define TIM_CONF 0
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#define Tn_INT_ENB_CNF 4
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uint64_t TIM0_COMP; /* Timer 0 comparator */
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#define TIM_COMP 8
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uint64_t rsv5[2];
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uint64_t TIM1_CONF; /* Timer 1 config and cap */
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uint64_t TIM1_COMP; /* Timer 1 comparator */
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uint64_t rsv6[2];
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uint64_t TIM2_CONF; /* Timer 2 config and cap */
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uint64_t TIM2_COMP; /* Timer 2 comparator */
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uint64_t rsv7[2];
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} hpetReg;
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typedef struct hpetReg hpetReg_t;
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typedef struct hpetTimer {
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uint64_t Config; /* Timer config and capabilities */
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uint64_t Compare; /* Timer comparitor */
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} hpetTimer_t;
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struct hpetInfo {
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uint64_t hpetCvtt2n;
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uint64_t hpetCvtn2t;
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uint64_t tsc2hpet;
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uint64_t hpet2tsc;
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uint64_t bus2hpet;
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uint64_t hpet2bus;
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uint32_t rcbaArea;
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uint32_t rcbaAreap;
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};
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typedef struct hpetInfo hpetInfo_t;
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struct hpetRequest {
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uint32_t flags;
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uint32_t hpetOffset;
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uint32_t hpetVector;
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};
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typedef struct hpetRequest hpetRequest_t;
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#define HPET_REQFL_64BIT 0x00000001 /* Timer is 64 bits */
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extern uint64_t hpetFemto;
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extern uint64_t hpetFreq;
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extern uint64_t hpetCvtt2n;
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extern uint64_t hpetCvtn2t;
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extern uint64_t tsc2hpet;
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extern uint64_t hpet2tsc;
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extern uint64_t bus2hpet;
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extern uint64_t hpet2bus;
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extern vm_offset_t rcbaArea;
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extern uint32_t rcbaAreap;
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extern void map_rcbaAread(void);
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extern void hpet_init(void);
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extern void hpet_save(void);
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extern void hpet_restore(void);
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#ifdef XNU_KERNEL_PRIVATE
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extern int HPETInterrupt(void);
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#endif
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extern int hpet_register_callback(int (*hpet_reqst)(uint32_t apicid, void *arg, hpetRequest_t *hpet), void *arg);
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extern int hpet_request(uint32_t cpu);
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extern uint64_t rdHPET(void);
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extern void hpet_get_info(hpetInfo_t *info);
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#define hpetAddr 0xFED00000
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#define hptcAE 0x80
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#endif /* _I386_HPET_H_ */
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#endif /* KERNEL_PRIVATE */
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