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Diffstat (limited to 'private/ntos/nthals/halalpha/pcrtc.h')
| -rw-r--r-- | private/ntos/nthals/halalpha/pcrtc.h | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/private/ntos/nthals/halalpha/pcrtc.h b/private/ntos/nthals/halalpha/pcrtc.h new file mode 100644 index 000000000..bff457f05 --- /dev/null +++ b/private/ntos/nthals/halalpha/pcrtc.h @@ -0,0 +1,166 @@ +/*++ + +Copyright (c) 1991 Microsoft Corporation +Copyright (c) 1992, 1993 Digital Equipment Corporation + +Module Name: + + pcrtc.h + +Abstract: + + This module is the header file that describes hardware structure + for the standard compatible PC Toy clock. + +Author: + + David N. Cutler (davec) 3-May-1991 + Jeff McLeman (mcleman) 4-Jun-1992 + +Revision History: + + 13-Jul-1992 Jeff McLeman + Add port offsets for use with VTI access routines. + + 4-Jun-1992 Jeff McLeman + Adapt module to Jensen specific + +--*/ + +#ifndef _PCRTC_ +#define _PCRTC_ + +// +// Define Realtime Clock register numbers. +// + +#define RTC_SECOND 0 // second of minute [0..59] +#define RTC_SECOND_ALARM 1 // seconds to alarm +#define RTC_MINUTE 2 // minute of hour [0..59] +#define RTC_MINUTE_ALARM 3 // minutes to alarm +#define RTC_HOUR 4 // hour of day [0..23] +#define RTC_HOUR_ALARM 5 // hours to alarm +#define RTC_DAY_OF_WEEK 6 // day of week [1..7] +#define RTC_DAY_OF_MONTH 7 // day of month [1..31] +#define RTC_MONTH 8 // month of year [1..12] +#define RTC_YEAR 9 // year [00..99] +#define RTC_CONTROL_REGISTERA 10 // control register A +#define RTC_CONTROL_REGISTERB 11 // control register B +#define RTC_CONTROL_REGISTERC 12 // control register C +#define RTC_CONTROL_REGISTERD 13 // control register D +#define RTC_REGNUMBER_RTC_CR1 0x6A // control register 1 + +#ifndef _LANGUAGE_ASSEMBLY + +// +// Definitions for NT area of NVRAM +// +typedef struct _RTC_RAM_NT_FLAGS_0 { + UCHAR ConfigurationBit : 1; // Serial line console only + UCHAR Fill : 6; + UCHAR AutoRunECU : 1; // Go directly to ECU +} RTC_RAM_NT_FLAGS_0, *PRTC_RAM_NT_FLAGS_0; + +#define RTC_RAM_NT_FLAGS_0_RUNARCAPP (0x80) +#define RTC_RAM_NT_FLAGS_0_RESERVED (0x7E) +#define RTC_RAM_NT_FLAGS_0_USECOM1FORIO (0x01) + +// +// Values for RTC_RAM_CONSOLE_SELECTION +// + +#define RTC_RAM_CONSOLE_SELECTION_NT 1 +#define RTC_RAM_CONSOLE_SELECTION_VMS 2 +#define RTC_RAM_CONSOLE_SELECTION_OSF 3 + +// +// Define Control Register A structure. +// + +typedef struct _RTC_CONTROL_REGISTER_A { + UCHAR RateSelect : 4; + UCHAR TimebaseDivisor : 3; + UCHAR UpdateInProgress : 1; +} RTC_CONTROL_REGISTER_A, *PRTC_CONTROL_REGISTER_A; + +// +// Define Control Register B structure. +// + +typedef struct _RTC_CONTROL_REGISTER_B { + UCHAR DayLightSavingsEnable : 1; + UCHAR HoursFormat : 1; + UCHAR DataMode : 1; + UCHAR SquareWaveEnable : 1; + UCHAR UpdateInterruptEnable : 1; + UCHAR AlarmInterruptEnable : 1; + UCHAR TimerInterruptEnable : 1; + UCHAR SetTime : 1; +} RTC_CONTROL_REGISTER_B, *PRTC_CONTROL_REGISTER_B; + +// +// Define Control Register C structure. +// + +typedef struct _RTC_CONTROL_REGISTER_C { + UCHAR Fill : 4; + UCHAR UpdateInterruptFlag : 1; + UCHAR AlarmInterruptFlag : 1; + UCHAR TimeInterruptFlag : 1; + UCHAR InterruptRequest : 1; +} RTC_CONTROL_REGISTER_C, *PRTC_CONTROL_REGISTER_C; + +// +// Define Control Register D structure. +// + +typedef struct _RTC_CONTROL_REGISTER_D { + UCHAR Fill : 7; + UCHAR ValidTime : 1; +} RTC_CONTROL_REGISTER_D, *PRTC_CONTROL_REGISTER_D; + +// +// Common routine for programming the interval timer +// +VOID +HalpProgramIntervalTimer( + IN ULONG RateSelect + ); + +#endif // _LANGUAGE_ASSEMBLY + +// +// Define initialization values for Jensen interval timer +// There are four different rates that are used under NT +// (see page 9-8 of KN121 System Module Programmer's Reference) +// +// .976562 ms +// 1.953125 ms +// 3.90625 ms +// 7.8125 ms +// +#define RTC_TIMEBASE_DIVISOR 0x02 + +#define RTC_RATE_SELECT1 6 +#define RTC_RATE_SELECT2 7 +#define RTC_RATE_SELECT3 8 +#define RTC_RATE_SELECT4 9 + +// +// note that rates 1-3 have some rounding error, +// since they are not expressible in even 100ns units +// + +#define RTC_PERIOD_IN_CLUNKS1 9766 +#define RTC_PERIOD_IN_CLUNKS2 19531 +#define RTC_PERIOD_IN_CLUNKS3 39063 +#define RTC_PERIOD_IN_CLUNKS4 78125 + +// +// Defaults +// +#define MINIMUM_INCREMENT RTC_PERIOD_IN_CLUNKS1 +#define MAXIMUM_INCREMENT RTC_PERIOD_IN_CLUNKS4 +#define MAXIMUM_RATE_SELECT RTC_RATE_SELECT4 + +#endif // _PCRTC_ |