metronome.h

来自「EFI BIOS是Intel提出的下一代的BIOS标准。这里上传的Edk源代码是」· C头文件 代码 · 共 81 行

/*++

Copyright (c) 2005, Intel Corporation                                                         
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:
  LegacyMetronome.h

Abstract:

  Driver implementing the EFI 2.0 metronome protocol using the legacy PORT 61 
  timer.

--*/

#ifndef _LEGACY_METRONOME_H
#define _LEGACY_METRONOME_H

//
// Statements that include other files
//
#include "Tiano.h"
#include "EfiDriverLib.h"

//
// Consumed protocols
//
#include EFI_PROTOCOL_DEPENDENCY (CpuIo)

//
// Produced protocols
//
#include EFI_ARCH_PROTOCOL_PRODUCER (Metronome)

//
// Private definitions
//
#define TICK_PERIOD         300
#define REFRESH_PORT        0x61
#define REFRESH_ON          0x10
#define REFRESH_OFF         0x00
#define TIMER1_CONTROL_PORT 0x43
#define TIMER1_COUNT_PORT   0x41
#define LOAD_COUNTER1_LSB   0x54
#define COUNTER1_COUNT      0x12

//
// Function Prototypes
//
EFI_STATUS
EFIAPI
WaitForTick (
  IN EFI_METRONOME_ARCH_PROTOCOL  *This,
  IN UINT32                       TickNumber
  )
/*++

Routine Description:

  TODO: Add function description

Arguments:

  This        - TODO: add argument description
  TickNumber  - TODO: add argument description

Returns:

  TODO: add return values

--*/
;

#endif