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73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
/** @file
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OcRtcLib - library with RTC I/O functions
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Copyright (c) 2020, vit9696
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All rights reserved.
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef OC_RTC_LIB_INTERNAL_H
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#define OC_RTC_LIB_INTERNAL_H
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//
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// Available on all platforms, requires NMI bit handling.
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//
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#define R_PCH_RTC_INDEX 0x70
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#define R_PCH_RTC_TARGET 0x71
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#define R_PCH_RTC_EXT_INDEX 0x72
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#define R_PCH_RTC_EXT_TARGET 0x73
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//
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// Available on Ivy Bridge and newer. Ignores NMI bit.
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//
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#define R_PCH_RTC_INDEX_ALT 0x74
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#define R_PCH_RTC_TARGET_ALT 0x75
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#define R_PCH_RTC_EXT_INDEX_ALT 0x76
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#define R_PCH_RTC_EXT_TARGET_ALT 0x77
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//
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// RTC Memory bank size
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//
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#define RTC_BANK_SIZE 0x80
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//
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// RTC INDEX bit mask
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//
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#define RTC_DATA_MASK 0x7F
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#define RTC_NMI_MASK 0x80
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//
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// Standard register addresses.
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//
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#define RTC_ADDRESS_SECONDS 0 // R/W Range 0..59
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#define RTC_ADDRESS_SECONDS_ALARM 1 // R/W Range 0..59
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#define RTC_ADDRESS_MINUTES 2 // R/W Range 0..59
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#define RTC_ADDRESS_MINUTES_ALARM 3 // R/W Range 0..59
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#define RTC_ADDRESS_HOURS 4 // R/W Range 1..12 or 0..23 Bit 7 is AM/PM
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#define RTC_ADDRESS_HOURS_ALARM 5 // R/W Range 1..12 or 0..23 Bit 7 is AM/PM
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#define RTC_ADDRESS_DAY_OF_THE_WEEK 6 // R/W Range 1..7
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#define RTC_ADDRESS_DAY_OF_THE_MONTH 7 // R/W Range 1..31
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#define RTC_ADDRESS_MONTH 8 // R/W Range 1..12
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#define RTC_ADDRESS_YEAR 9 // R/W Range 0..99
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#define RTC_ADDRESS_REGISTER_A 10 // R/W[0..6] R0[7]
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#define RTC_ADDRESS_REGISTER_B 11 // R/W
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#define RTC_ADDRESS_REGISTER_C 12 // RO
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#define RTC_ADDRESS_REGISTER_D 13 // RO
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//
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// Register A update in progress bit.
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//
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#define RTC_UPDATE_IN_PROGRESS 0x80U
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#endif // OC_RTC_LIB_INTERNAL_H
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