1 /* 2 * Copyright (c) 2007 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_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 License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 /* 29 * @OSF_COPYRIGHT@ 30 */ 31 /* 32 * @APPLE_FREE_COPYRIGHT@ 33 */ 34 35 #ifndef _ARM_RTCLOCK_H_ 36 #define _ARM_RTCLOCK_H_ 37 38 #include <mach/boolean.h> 39 #include <mach/mach_types.h> 40 #include <mach/mach_time.h> 41 #include <arm/machine_routines.h> 42 43 #define EndOfAllTime 0xFFFFFFFFFFFFFFFFULL 44 #define DECREMENTER_MAX 0x7FFFFFFFUL 45 #define DECREMENTER_MIN 0xAUL 46 47 typedef struct _rtclock_data_ { 48 uint32_t rtc_sec_divisor; 49 uint32_t rtc_usec_divisor; 50 mach_timebase_info_data_t rtc_timebase_const; 51 union { 52 uint64_t abstime; 53 struct { 54 uint32_t low; 55 uint32_t high; 56 } abstime_val; 57 } rtc_base; 58 union { 59 uint64_t abstime; 60 struct { 61 uint32_t low; 62 uint32_t high; 63 } abstime_val; 64 } rtc_adj; 65 tbd_ops_data_t rtc_timebase_func; 66 67 /* Only needed for AIC manipulation */ 68 vm_offset_t rtc_timebase_addr; 69 vm_offset_t rtc_timebase_val; 70 } rtclock_data_t; 71 72 extern rtclock_data_t RTClockData; 73 #define rtclock_sec_divisor RTClockData.rtc_sec_divisor 74 #define rtclock_usec_divisor RTClockData.rtc_usec_divisor 75 #define rtclock_timebase_const RTClockData.rtc_timebase_const 76 #define rtclock_base_abstime RTClockData.rtc_base.abstime 77 #define rtclock_base_abstime_low RTClockData.rtc_base.abstime_val.low 78 #define rtclock_base_abstime_high RTClockData.rtc_base.abstime_val.high 79 #define rtclock_adj_abstime RTClockData.rtc_adj.abstime 80 #define rtclock_adj_abstime_low RTClockData.rtc_adj.abstime_val.low 81 #define rtclock_adj_abstime_high RTClockData.rtc_adj.abstime_val.high 82 #define rtclock_timebase_func RTClockData.rtc_timebase_func 83 84 /* Only needed for AIC manipulation */ 85 #define rtclock_timebase_addr RTClockData.rtc_timebase_addr 86 #define rtclock_timebase_val RTClockData.rtc_timebase_val 87 88 extern uint64_t arm_timer_slop_max; 89 90 extern void rtclock_intr(unsigned int); 91 extern boolean_t SetIdlePop(void); 92 93 extern void ClearIdlePop(boolean_t); 94 extern void rtclock_early_init(void); 95 96 #endif /* _ARM_RTCLOCK_H_ */ 97