mirror of https://github.com/acidanthera/audk.git
509 lines
9.4 KiB
C
509 lines
9.4 KiB
C
/*++
|
|
|
|
Copyright (c) 2006 - 2007 Intel Corporation. <BR>
|
|
All rights reserved. This program and the accompanying materials
|
|
are licensed and made available under the terms and conditions of the BSD License
|
|
which accompanies this distribution. The full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.php
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
|
|
Module Name:
|
|
|
|
PcRtc.h
|
|
|
|
Abstract:
|
|
|
|
Include for real time clock driver
|
|
|
|
Revision History
|
|
|
|
|
|
--*/
|
|
|
|
#ifndef _RTC_H_
|
|
#define _RTC_H_
|
|
|
|
|
|
#include <PiDxe.h>
|
|
|
|
#include <Protocol/RealTimeClock.h>
|
|
|
|
#include <Library/BaseLib.h>
|
|
#include <Library/DebugLib.h>
|
|
#include <Library/UefiLib.h>
|
|
#include <Library/BaseMemoryLib.h>
|
|
#include <Library/IoLib.h>
|
|
#include <Library/TimerLib.h>
|
|
#include <Library/UefiDriverEntryPoint.h>
|
|
#include <Library/UefiBootServicesTableLib.h>
|
|
#include <Library/UefiRuntimeLib.h>
|
|
#include <Library/UefiRuntimeServicesTableLib.h>
|
|
|
|
|
|
typedef struct {
|
|
EFI_LOCK RtcLock;
|
|
UINT16 SavedTimeZone;
|
|
UINT8 Daylight;
|
|
} PC_RTC_MODULE_GLOBALS;
|
|
|
|
#define PCAT_RTC_ADDRESS_REGISTER 0x70
|
|
#define PCAT_RTC_DATA_REGISTER 0x71
|
|
|
|
//
|
|
// Dallas DS12C887 Real Time Clock
|
|
//
|
|
#define RTC_ADDRESS_SECONDS 0 // R/W Range 0..59
|
|
#define RTC_ADDRESS_SECONDS_ALARM 1 // R/W Range 0..59
|
|
#define RTC_ADDRESS_MINUTES 2 // R/W Range 0..59
|
|
#define RTC_ADDRESS_MINUTES_ALARM 3 // R/W Range 0..59
|
|
#define RTC_ADDRESS_HOURS 4 // R/W Range 1..12 or 0..23 Bit 7 is AM/PM
|
|
#define RTC_ADDRESS_HOURS_ALARM 5 // R/W Range 1..12 or 0..23 Bit 7 is AM/PM
|
|
#define RTC_ADDRESS_DAY_OF_THE_WEEK 6 // R/W Range 1..7
|
|
#define RTC_ADDRESS_DAY_OF_THE_MONTH 7 // R/W Range 1..31
|
|
#define RTC_ADDRESS_MONTH 8 // R/W Range 1..12
|
|
#define RTC_ADDRESS_YEAR 9 // R/W Range 0..99
|
|
#define RTC_ADDRESS_REGISTER_A 10 // R/W[0..6] R0[7]
|
|
#define RTC_ADDRESS_REGISTER_B 11 // R/W
|
|
#define RTC_ADDRESS_REGISTER_C 12 // RO
|
|
#define RTC_ADDRESS_REGISTER_D 13 // RO
|
|
#define RTC_ADDRESS_CENTURY 50 // R/W Range 19..20 Bit 8 is R/W
|
|
//
|
|
// Date and time initial values.
|
|
// They are used if the RTC values are invalid during driver initialization
|
|
//
|
|
#define RTC_INIT_SECOND 0
|
|
#define RTC_INIT_MINUTE 0
|
|
#define RTC_INIT_HOUR 0
|
|
#define RTC_INIT_DAY 1
|
|
#define RTC_INIT_MONTH 1
|
|
#define RTC_INIT_YEAR 2001
|
|
|
|
//
|
|
// Register initial values
|
|
//
|
|
#define RTC_INIT_REGISTER_A 0x26
|
|
#define RTC_INIT_REGISTER_B 0x02
|
|
#define RTC_INIT_REGISTER_D 0x0
|
|
|
|
#pragma pack(1)
|
|
//
|
|
// Register A
|
|
//
|
|
typedef struct {
|
|
UINT8 RS : 4; // Rate Selection Bits
|
|
UINT8 DV : 3; // Divisor
|
|
UINT8 UIP : 1; // Update in progress
|
|
} RTC_REGISTER_A_BITS;
|
|
|
|
typedef union {
|
|
RTC_REGISTER_A_BITS Bits;
|
|
UINT8 Data;
|
|
} RTC_REGISTER_A;
|
|
|
|
//
|
|
// Register B
|
|
//
|
|
typedef struct {
|
|
UINT8 DSE : 1; // 0 - Daylight saving disabled 1 - Daylight savings enabled
|
|
UINT8 MIL : 1; // 0 - 12 hour mode 1 - 24 hour mode
|
|
UINT8 DM : 1; // 0 - BCD Format 1 - Binary Format
|
|
UINT8 SQWE : 1; // 0 - Disable SQWE output 1 - Enable SQWE output
|
|
UINT8 UIE : 1; // 0 - Update INT disabled 1 - Update INT enabled
|
|
UINT8 AIE : 1; // 0 - Alarm INT disabled 1 - Alarm INT Enabled
|
|
UINT8 PIE : 1; // 0 - Periodic INT disabled 1 - Periodic INT Enabled
|
|
UINT8 SET : 1; // 0 - Normal operation. 1 - Updates inhibited
|
|
} RTC_REGISTER_B_BITS;
|
|
|
|
typedef union {
|
|
RTC_REGISTER_B_BITS Bits;
|
|
UINT8 Data;
|
|
} RTC_REGISTER_B;
|
|
|
|
//
|
|
// Register C
|
|
//
|
|
typedef struct {
|
|
UINT8 Reserved : 4; // Read as zero. Can not be written.
|
|
UINT8 UF : 1; // Update End Interrupt Flag
|
|
UINT8 AF : 1; // Alarm Interrupt Flag
|
|
UINT8 PF : 1; // Periodic Interrupt Flag
|
|
UINT8 IRQF : 1; // Iterrupt Request Flag = PF & PIE | AF & AIE | UF & UIE
|
|
} RTC_REGISTER_C_BITS;
|
|
|
|
typedef union {
|
|
RTC_REGISTER_C_BITS Bits;
|
|
UINT8 Data;
|
|
} RTC_REGISTER_C;
|
|
|
|
//
|
|
// Register D
|
|
//
|
|
typedef struct {
|
|
UINT8 Reserved : 7; // Read as zero. Can not be written.
|
|
UINT8 VRT : 1; // Valid RAM and Time
|
|
} RTC_REGISTER_D_BITS;
|
|
|
|
typedef union {
|
|
RTC_REGISTER_D_BITS Bits;
|
|
UINT8 Data;
|
|
} RTC_REGISTER_D;
|
|
|
|
#pragma pack()
|
|
|
|
EFI_STATUS
|
|
PcRtcInit (
|
|
IN PC_RTC_MODULE_GLOBALS *Global
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
GC_TODO: Add function description
|
|
|
|
Arguments:
|
|
|
|
Global - GC_TODO: add argument description
|
|
|
|
Returns:
|
|
|
|
GC_TODO: add return values
|
|
|
|
--*/
|
|
;
|
|
|
|
EFI_STATUS
|
|
PcRtcSetTime (
|
|
IN EFI_TIME *Time,
|
|
IN PC_RTC_MODULE_GLOBALS *Global
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
GC_TODO: Add function description
|
|
|
|
Arguments:
|
|
|
|
Time - GC_TODO: add argument description
|
|
Global - GC_TODO: add argument description
|
|
|
|
Returns:
|
|
|
|
GC_TODO: add return values
|
|
|
|
--*/
|
|
;
|
|
|
|
EFI_STATUS
|
|
PcRtcGetTime (
|
|
OUT EFI_TIME *Time,
|
|
IN EFI_TIME_CAPABILITIES *Capabilities,
|
|
IN PC_RTC_MODULE_GLOBALS *Global
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
GC_TODO: Add function description
|
|
|
|
Arguments:
|
|
|
|
Time - GC_TODO: add argument description
|
|
Capabilities - GC_TODO: add argument description
|
|
Global - GC_TODO: add argument description
|
|
|
|
Returns:
|
|
|
|
GC_TODO: add return values
|
|
|
|
--*/
|
|
;
|
|
|
|
EFI_STATUS
|
|
PcRtcSetWakeupTime (
|
|
IN BOOLEAN Enable,
|
|
OUT EFI_TIME *Time,
|
|
IN PC_RTC_MODULE_GLOBALS *Global
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
GC_TODO: Add function description
|
|
|
|
Arguments:
|
|
|
|
Enable - GC_TODO: add argument description
|
|
Time - GC_TODO: add argument description
|
|
Global - GC_TODO: add argument description
|
|
|
|
Returns:
|
|
|
|
GC_TODO: add return values
|
|
|
|
--*/
|
|
;
|
|
|
|
EFI_STATUS
|
|
PcRtcGetWakeupTime (
|
|
OUT BOOLEAN *Enabled,
|
|
OUT BOOLEAN *Pending,
|
|
OUT EFI_TIME *Time,
|
|
IN PC_RTC_MODULE_GLOBALS *Global
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
GC_TODO: Add function description
|
|
|
|
Arguments:
|
|
|
|
Enabled - GC_TODO: add argument description
|
|
Pending - GC_TODO: add argument description
|
|
Time - GC_TODO: add argument description
|
|
Global - GC_TODO: add argument description
|
|
|
|
Returns:
|
|
|
|
GC_TODO: add return values
|
|
|
|
--*/
|
|
;
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
InitializePcRtc (
|
|
IN EFI_HANDLE ImageHandle,
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
GC_TODO: Add function description
|
|
|
|
Arguments:
|
|
|
|
ImageHandle - GC_TODO: add argument description
|
|
SystemTable - GC_TODO: add argument description
|
|
|
|
Returns:
|
|
|
|
GC_TODO: add return values
|
|
|
|
--*/
|
|
;
|
|
|
|
UINT8
|
|
BcdToDecimal (
|
|
IN UINT8 BcdValue
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
GC_TODO: Add function description
|
|
|
|
Arguments:
|
|
|
|
BcdValue - GC_TODO: add argument description
|
|
|
|
Returns:
|
|
|
|
GC_TODO: add return values
|
|
|
|
--*/
|
|
;
|
|
|
|
EFI_STATUS
|
|
RtcTimeFieldsValid (
|
|
IN EFI_TIME *Time
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
GC_TODO: Add function description
|
|
|
|
Arguments:
|
|
|
|
Time - GC_TODO: add argument description
|
|
|
|
Returns:
|
|
|
|
GC_TODO: add return values
|
|
|
|
--*/
|
|
;
|
|
|
|
UINT8
|
|
DecimaltoBcd (
|
|
IN UINT8 DecValue
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
GC_TODO: Add function description
|
|
|
|
Arguments:
|
|
|
|
DecValue - GC_TODO: add argument description
|
|
|
|
Returns:
|
|
|
|
GC_TODO: add return values
|
|
|
|
--*/
|
|
;
|
|
|
|
VOID
|
|
ConvertEfiTimeToRtcTime (
|
|
IN EFI_TIME *Time,
|
|
IN RTC_REGISTER_B RegisterB,
|
|
IN UINT8 *Century
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
GC_TODO: Add function description
|
|
|
|
Arguments:
|
|
|
|
Time - GC_TODO: add argument description
|
|
RegisterB - GC_TODO: add argument description
|
|
Century - GC_TODO: add argument description
|
|
|
|
Returns:
|
|
|
|
GC_TODO: add return values
|
|
|
|
--*/
|
|
;
|
|
|
|
EFI_STATUS
|
|
RtcTestCenturyRegister (
|
|
VOID
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
GC_TODO: Add function description
|
|
|
|
Arguments:
|
|
|
|
None
|
|
|
|
Returns:
|
|
|
|
GC_TODO: add return values
|
|
|
|
--*/
|
|
;
|
|
|
|
VOID
|
|
ConvertRtcTimeToEfiTime (
|
|
IN EFI_TIME *Time,
|
|
IN RTC_REGISTER_B RegisterB
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
GC_TODO: Add function description
|
|
|
|
Arguments:
|
|
|
|
Time - GC_TODO: add argument description
|
|
RegisterB - GC_TODO: add argument description
|
|
|
|
Returns:
|
|
|
|
GC_TODO: add return values
|
|
|
|
--*/
|
|
;
|
|
|
|
EFI_STATUS
|
|
RtcWaitToUpdate (
|
|
UINTN Timeout
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
GC_TODO: Add function description
|
|
|
|
Arguments:
|
|
|
|
Timeout - GC_TODO: add argument description
|
|
|
|
Returns:
|
|
|
|
GC_TODO: add return values
|
|
|
|
--*/
|
|
;
|
|
|
|
UINT8
|
|
RtcSaveContext (
|
|
IN PC_RTC_MODULE_GLOBALS *Global
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
GC_TODO: Add function description
|
|
|
|
Arguments:
|
|
|
|
Global - GC_TODO: add argument description
|
|
|
|
Returns:
|
|
|
|
GC_TODO: add return values
|
|
|
|
--*/
|
|
;
|
|
|
|
VOID
|
|
RtcRestoreContext (
|
|
IN UINT8 SavedAddressRegister,
|
|
IN PC_RTC_MODULE_GLOBALS *Global
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
GC_TODO: Add function description
|
|
|
|
Arguments:
|
|
|
|
SavedAddressRegister - GC_TODO: add argument description
|
|
Global - GC_TODO: add argument description
|
|
|
|
Returns:
|
|
|
|
GC_TODO: add return values
|
|
|
|
--*/
|
|
;
|
|
|
|
BOOLEAN
|
|
DayValid (
|
|
IN EFI_TIME *Time
|
|
);
|
|
|
|
BOOLEAN
|
|
IsLeapYear (
|
|
IN EFI_TIME *Time
|
|
);
|
|
|
|
#endif
|