projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| f530cdbb LG |
1 | /** @file\r |
| 2 | I/O Library for EBC.\r | |
| 3 | \r | |
| 4 | EBC does not support port I/O. All APIs in this file ASSERT().\r | |
| 5 | \r | |
| 6 | Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>\r | |
| 7 | This program and the accompanying materials\r | |
| 8 | are licensed and made available under the terms and conditions of the BSD License\r | |
| 9 | which accompanies this distribution. The full text of the license may be found at\r | |
| 10 | http://opensource.org/licenses/bsd-license.php.\r | |
| 11 | \r | |
| 12 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 13 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 14 | \r | |
| 15 | **/\r | |
| 16 | \r | |
| 17 | #include "BaseIoLibIntrinsicInternal.h"\r | |
| 18 | \r | |
| 19 | /**\r | |
| 20 | Reads an 8-bit I/O port.\r | |
| 21 | \r | |
| 22 | Reads the 8-bit I/O port specified by Port. The 8-bit read value is returned.\r | |
| 23 | This function must guarantee that all I/O read and write operations are\r | |
| 24 | serialized.\r | |
| 25 | \r | |
| 26 | If 8-bit I/O port operations are not supported, then ASSERT().\r | |
| 27 | \r | |
| 28 | @param Port The I/O port to read.\r | |
| 29 | \r | |
| 30 | @return The value read.\r | |
| 31 | \r | |
| 32 | **/\r | |
| 33 | UINT8\r | |
| 34 | EFIAPI\r | |
| 35 | IoRead8 (\r | |
| 36 | IN UINTN Port\r | |
| 37 | )\r | |
| 38 | {\r | |
| 39 | ASSERT (FALSE);\r | |
| 40 | return 0;\r | |
| 41 | }\r | |
| 42 | \r | |
| 43 | /**\r | |
| 44 | Writes an 8-bit I/O port.\r | |
| 45 | \r | |
| 46 | Writes the 8-bit I/O port specified by Port with the value specified by Value\r | |
| 47 | and returns Value. This function must guarantee that all I/O read and write\r | |
| 48 | operations are serialized.\r | |
| 49 | \r | |
| 50 | If 8-bit I/O port operations are not supported, then ASSERT().\r | |
| 51 | \r | |
| 52 | @param Port The I/O port to write.\r | |
| 53 | @param Value The value to write to the I/O port.\r | |
| 54 | \r | |
| 55 | @return The value written to the I/O port.\r | |
| 56 | \r | |
| 57 | **/\r | |
| 58 | UINT8\r | |
| 59 | EFIAPI\r | |
| 60 | IoWrite8 (\r | |
| 61 | IN UINTN Port,\r | |
| 62 | IN UINT8 Value\r | |
| 63 | )\r | |
| 64 | {\r | |
| 65 | ASSERT (FALSE);\r | |
| 66 | return 0;\r | |
| 67 | }\r | |
| 68 | \r | |
| 69 | /**\r | |
| 70 | Reads a 16-bit I/O port.\r | |
| 71 | \r | |
| 72 | Reads the 16-bit I/O port specified by Port. The 16-bit read value is returned.\r | |
| 73 | This function must guarantee that all I/O read and write operations are\r | |
| 74 | serialized.\r | |
| 75 | \r | |
| 76 | If 16-bit I/O port operations are not supported, then ASSERT().\r | |
| 77 | If Port is not aligned on a 16-bit boundary, then ASSERT().\r | |
| 78 | \r | |
| 79 | @param Port The I/O port to read.\r | |
| 80 | \r | |
| 81 | @return The value read.\r | |
| 82 | \r | |
| 83 | **/\r | |
| 84 | UINT16\r | |
| 85 | EFIAPI\r | |
| 86 | IoRead16 (\r | |
| 87 | IN UINTN Port\r | |
| 88 | )\r | |
| 89 | {\r | |
| 90 | ASSERT (FALSE);\r | |
| 91 | return 0;\r | |
| 92 | }\r | |
| 93 | \r | |
| 94 | /**\r | |
| 95 | Writes a 16-bit I/O port.\r | |
| 96 | \r | |
| 97 | Writes the 16-bit I/O port specified by Port with the value specified by Value\r | |
| 98 | and returns Value. This function must guarantee that all I/O read and write\r | |
| 99 | operations are serialized.\r | |
| 100 | \r | |
| 101 | If 16-bit I/O port operations are not supported, then ASSERT().\r | |
| 102 | If Port is not aligned on a 16-bit boundary, then ASSERT().\r | |
| 103 | \r | |
| 104 | @param Port The I/O port to write.\r | |
| 105 | @param Value The value to write to the I/O port.\r | |
| 106 | \r | |
| 107 | @return The value written to the I/O port.\r | |
| 108 | \r | |
| 109 | **/\r | |
| 110 | UINT16\r | |
| 111 | EFIAPI\r | |
| 112 | IoWrite16 (\r | |
| 113 | IN UINTN Port,\r | |
| 114 | IN UINT16 Value\r | |
| 115 | )\r | |
| 116 | {\r | |
| 117 | ASSERT (FALSE);\r | |
| 118 | return 0;\r | |
| 119 | }\r | |
| 120 | \r | |
| 121 | /**\r | |
| 122 | Reads a 32-bit I/O port.\r | |
| 123 | \r | |
| 124 | Reads the 32-bit I/O port specified by Port. The 32-bit read value is returned.\r | |
| 125 | This function must guarantee that all I/O read and write operations are\r | |
| 126 | serialized.\r | |
| 127 | \r | |
| 128 | If 32-bit I/O port operations are not supported, then ASSERT().\r | |
| 129 | If Port is not aligned on a 32-bit boundary, then ASSERT().\r | |
| 130 | \r | |
| 131 | @param Port The I/O port to read.\r | |
| 132 | \r | |
| 133 | @return The value read.\r | |
| 134 | \r | |
| 135 | **/\r | |
| 136 | UINT32\r | |
| 137 | EFIAPI\r | |
| 138 | IoRead32 (\r | |
| 139 | IN UINTN Port\r | |
| 140 | )\r | |
| 141 | {\r | |
| 142 | ASSERT (FALSE);\r | |
| 143 | return 0;\r | |
| 144 | }\r | |
| 145 | \r | |
| 146 | /**\r | |
| 147 | Writes a 32-bit I/O port.\r | |
| 148 | \r | |
| 149 | Writes the 32-bit I/O port specified by Port with the value specified by Value\r | |
| 150 | and returns Value. This function must guarantee that all I/O read and write\r | |
| 151 | operations are serialized.\r | |
| 152 | \r | |
| 153 | If 32-bit I/O port operations are not supported, then ASSERT().\r | |
| 154 | If Port is not aligned on a 32-bit boundary, then ASSERT().\r | |
| 155 | \r | |
| 156 | @param Port The I/O port to write.\r | |
| 157 | @param Value The value to write to the I/O port.\r | |
| 158 | \r | |
| 159 | @return The value written to the I/O port.\r | |
| 160 | \r | |
| 161 | **/\r | |
| 162 | UINT32\r | |
| 163 | EFIAPI\r | |
| 164 | IoWrite32 (\r | |
| 165 | IN UINTN Port,\r | |
| 166 | IN UINT32 Value\r | |
| 167 | )\r | |
| 168 | {\r | |
| 169 | ASSERT (FALSE);\r | |
| 170 | return 0;\r | |
| 171 | }\r |