[29322a8d] | 1 | /* |
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| 2 | * This file contains the definitions for the following real-time clocks: |
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| 3 | * |
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| 4 | * + Motorola MC146818A |
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| 5 | * |
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| 6 | * COPYRIGHT (c) 1989-1999. |
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| 7 | * On-Line Applications Research Corporation (OAR). |
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| 8 | * |
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| 9 | * The license and distribution terms for this file may be |
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| 10 | * found in the file LICENSE in this distribution or at |
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| 11 | * http://www.rtems.com/license/LICENSE. |
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| 12 | * |
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| 13 | * $Id$ |
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| 14 | */ |
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| 15 | |
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| 16 | #ifndef __LIBCHIP_MC146818A_h |
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| 17 | #define __LIBCHIP_MC146818A_h |
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| 18 | |
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| 19 | /* |
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| 20 | * Register addresses within chip |
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| 21 | */ |
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| 22 | #define MC146818A_SEC 0x00 /* seconds */ |
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| 23 | #define MC146818A_SECALRM 0x01 /* seconds alarm */ |
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| 24 | #define MC146818A_MIN 0x02 /* minutes */ |
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| 25 | #define MC146818A_MINALRM 0x03 /* minutes alarm */ |
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| 26 | #define MC146818A_HRS 0x04 /* hours */ |
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| 27 | #define MC146818A_HRSALRM 0x05 /* hours alarm */ |
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| 28 | #define MC146818A_WDAY 0x06 /* week day */ |
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| 29 | #define MC146818A_DAY 0x07 /* day of month */ |
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| 30 | #define MC146818A_MONTH 0x08 /* month of year */ |
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| 31 | #define MC146818A_YEAR 0x09 /* month of year */ |
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| 32 | |
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| 33 | #define MC146818A_STATUSA 0x0a /* status register A */ |
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| 34 | #define MC146818ASA_TUP 0x80 /* time update in progress */ |
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| 35 | #define MC146818ASA_DIVIDER 0x20 /* divider for 32768 crystal */ |
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| 36 | #define MC146818ASA_1024 0x06 /* divide to 1024 Hz */ |
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| 37 | |
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| 38 | #define MC146818A_STATUSB 0x0b /* status register B */ |
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| 39 | #define MC146818ASB_DST 0x01 /* Daylight Savings Time */ |
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| 40 | #define MC146818ASB_24HR 0x02 /* 0 = 12 hours, 1 = 24 hours */ |
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| 41 | #define MC146818ASB_HALT 0x80 /* stop clock updates */ |
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| 42 | |
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| 43 | #define MC146818A_STATUSD 0x0d /* status register D */ |
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| 44 | #define MC146818ASD_PWR 0x80 /* clock lost power */ |
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| 45 | |
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| 46 | |
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| 47 | /* |
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| 48 | * Driver function table |
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| 49 | */ |
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| 50 | extern rtc_fns mc146818a_fns; |
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[6640459d] | 51 | bool mc146818a_probe( |
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[20a7adf] | 52 | int minor |
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| 53 | ); |
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[29322a8d] | 54 | |
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| 55 | /* |
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| 56 | * Default register access routines |
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| 57 | */ |
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[d4d624e2] | 58 | uint32_t mc146818a_get_register( |
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| 59 | uint32_t ulCtrlPort, |
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[28fcdde] | 60 | uint8_t ucRegNum |
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[29322a8d] | 61 | ); |
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| 62 | |
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| 63 | void mc146818a_set_register( |
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[d4d624e2] | 64 | uint32_t ulCtrlPort, |
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[28fcdde] | 65 | uint8_t ucRegNum, |
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[d4d624e2] | 66 | uint32_t ucData |
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[29322a8d] | 67 | ); |
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| 68 | |
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| 69 | #endif |
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| 70 | /* end of include file */ |
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