EdkCompatibilityPkg/Foundation/Library/RuntimeDxe/EfiRuntimeLib/x64/IoLib.c

   1 /*++
   2
   3 Copyright (c) 2005, Intel Corporation
   4 All rights reserved. This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this distribution.  The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12 Module Name:
  13
  14   IoLib.c
  15
  16 Abstract:
  17
  18   Light weight lib to support Tiano drivers.
  19
  20 --*/
  21
  22 #include "Tiano.h"
  23 #include "EfiRuntimeLib.h"
  24 #include EFI_PROTOCOL_DEFINITION (CpuIo)
  25
  26 extern EFI_CPU_IO_PROTOCOL  *gCpuIo;
  27
  28 EFI_STATUS
  29 EfiIoRead (
  30   IN  EFI_CPU_IO_PROTOCOL_WIDTH   Width,
  31   IN  UINT64                      Address,
  32   IN  UINTN                       Count,
  33   IN  OUT VOID                    *Buffer
  34   )
  35 /*++
  36
  37 Routine Description:
  38   Perform an IO read into Buffer.
  39
  40 Arguments:
  41   Width   - Width of read transaction, and repeat operation to use
  42   Address - IO address to read
  43   Count   - Number of times to read the IO address.
  44   Buffer  - Buffer to read data into. size is Width * Count
  45
  46 Returns:
  47   BugBug: Check with Mike to see if I can find this #define some ware else
  48
  49 --*/
  50 {
  51   return gCpuIo->Io.Read (gCpuIo, Width, Address, Count, Buffer);
  52 }
  53
  54 EFI_STATUS
  55 EfiIoWrite (
  56   IN  EFI_CPU_IO_PROTOCOL_WIDTH   Width,
  57   IN  UINT64                      Address,
  58   IN  UINTN                       Count,
  59   IN  OUT VOID                    *Buffer
  60   )
  61 /*++
  62
  63 Routine Description:
  64   Perform an IO write into Buffer.
  65
  66 Arguments:
  67   Width   - Width of write transaction, and repeat operation to use
  68   Address - IO address to write
  69   Count   - Number of times to write the IO address.
  70   Buffer  - Buffer to write data from. size is Width * Count
  71
  72 Returns:
  73   BugBug: Check with Mike to see if I can find this #define some ware else
  74
  75 --*/
  76 {
  77   return gCpuIo->Io.Write (gCpuIo, Width, Address, Count, Buffer);
  78 }
  79
  80 EFI_STATUS
  81 EfiMemRead (
  82   IN  EFI_CPU_IO_PROTOCOL_WIDTH   Width,
  83   IN  UINT64                      Address,
  84   IN  UINTN                       Count,
  85   IN  OUT VOID                    *Buffer
  86   )
  87 /*++
  88
  89 Routine Description:
  90   Perform a Memory mapped IO read into Buffer.
  91
  92 Arguments:
  93   Width   - Width of each read transaction.
  94   Address - Memory mapped IO address to read
  95   Count   - Number of Width quanta to read
  96   Buffer  - Buffer to read data into. size is Width * Count
  97
  98 Returns:
  99   BugBug: Check with Mike to see if I can find this #define some ware else
 100
 101 --*/
 102 {
 103   return gCpuIo->Mem.Read (gCpuIo, Width, Address, Count, Buffer);
 104 }
 105
 106 EFI_STATUS
 107 EfiMemWrite (
 108   IN  EFI_CPU_IO_PROTOCOL_WIDTH    Width,
 109   IN  UINT64                       Address,
 110   IN  UINTN                        Count,
 111   IN  OUT VOID                     *Buffer
 112   )
 113 /*++
 114
 115 Routine Description:
 116   Perform a memory mapped IO write into Buffer.
 117
 118 Arguments:
 119   Width   - Width of write transaction, and repeat operation to use
 120   Address - IO address to write
 121   Count   - Number of times to write the IO address.
 122   Buffer  - Buffer to write data from. size is Width * Count
 123
 124 Returns:
 125   BugBug: Check with Mike to see if I can find this #define some ware else
 126
 127 --*/
 128 {
 129   return gCpuIo->Mem.Write (gCpuIo, Width, Address, Count, Buffer);
 130 }