]>
Commit | Line | Data |
---|---|---|
d910a704 MK |
1 | /** @file |
2 | I/O Library for EBC. | |
3 | ||
4 | EBC does not support port I/O. All APIs in this file ASSERT(). | |
5 | ||
6 | Copyright (c) 2015, Intel Corporation. All rights reserved.<BR> | |
7 | This program and the accompanying materials | |
8 | are licensed and made available under the terms and conditions of the BSD License | |
9 | which accompanies this distribution. The full text of the license may be found at | |
10 | http://opensource.org/licenses/bsd-license.php. | |
11 | ||
12 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
13 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
14 | ||
15 | **/ | |
16 | ||
17 | #include "BaseIoLibIntrinsicInternal.h" | |
18 | ||
19 | /** | |
20 | Reads an 8-bit I/O port. | |
21 | ||
22 | Reads the 8-bit I/O port specified by Port. The 8-bit read value is returned. | |
23 | This function must guarantee that all I/O read and write operations are | |
24 | serialized. | |
25 | ||
26 | If 8-bit I/O port operations are not supported, then ASSERT(). | |
27 | ||
28 | @param Port The I/O port to read. | |
29 | ||
30 | @return The value read. | |
31 | ||
32 | **/ | |
33 | UINT8 | |
34 | EFIAPI | |
35 | IoRead8 ( | |
36 | IN UINTN Port | |
37 | ) | |
38 | { | |
39 | ASSERT (FALSE); | |
40 | return 0; | |
41 | } | |
42 | ||
43 | /** | |
44 | Writes an 8-bit I/O port. | |
45 | ||
46 | Writes the 8-bit I/O port specified by Port with the value specified by Value | |
47 | and returns Value. This function must guarantee that all I/O read and write | |
48 | operations are serialized. | |
49 | ||
50 | If 8-bit I/O port operations are not supported, then ASSERT(). | |
51 | ||
52 | @param Port The I/O port to write. | |
53 | @param Value The value to write to the I/O port. | |
54 | ||
55 | @return The value written to the I/O port. | |
56 | ||
57 | **/ | |
58 | UINT8 | |
59 | EFIAPI | |
60 | IoWrite8 ( | |
61 | IN UINTN Port, | |
62 | IN UINT8 Value | |
63 | ) | |
64 | { | |
65 | ASSERT (FALSE); | |
66 | return 0; | |
67 | } | |
68 | ||
69 | /** | |
70 | Reads a 16-bit I/O port. | |
71 | ||
72 | Reads the 16-bit I/O port specified by Port. The 16-bit read value is returned. | |
73 | This function must guarantee that all I/O read and write operations are | |
74 | serialized. | |
75 | ||
76 | If 16-bit I/O port operations are not supported, then ASSERT(). | |
77 | If Port is not aligned on a 16-bit boundary, then ASSERT(). | |
78 | ||
79 | @param Port The I/O port to read. | |
80 | ||
81 | @return The value read. | |
82 | ||
83 | **/ | |
84 | UINT16 | |
85 | EFIAPI | |
86 | IoRead16 ( | |
87 | IN UINTN Port | |
88 | ) | |
89 | { | |
90 | ASSERT (FALSE); | |
91 | return 0; | |
92 | } | |
93 | ||
94 | /** | |
95 | Writes a 16-bit I/O port. | |
96 | ||
97 | Writes the 16-bit I/O port specified by Port with the value specified by Value | |
98 | and returns Value. This function must guarantee that all I/O read and write | |
99 | operations are serialized. | |
100 | ||
101 | If 16-bit I/O port operations are not supported, then ASSERT(). | |
102 | If Port is not aligned on a 16-bit boundary, then ASSERT(). | |
103 | ||
104 | @param Port The I/O port to write. | |
105 | @param Value The value to write to the I/O port. | |
106 | ||
107 | @return The value written to the I/O port. | |
108 | ||
109 | **/ | |
110 | UINT16 | |
111 | EFIAPI | |
112 | IoWrite16 ( | |
113 | IN UINTN Port, | |
114 | IN UINT16 Value | |
115 | ) | |
116 | { | |
117 | ASSERT (FALSE); | |
118 | return 0; | |
119 | } | |
120 | ||
121 | /** | |
122 | Reads a 32-bit I/O port. | |
123 | ||
124 | Reads the 32-bit I/O port specified by Port. The 32-bit read value is returned. | |
125 | This function must guarantee that all I/O read and write operations are | |
126 | serialized. | |
127 | ||
128 | If 32-bit I/O port operations are not supported, then ASSERT(). | |
129 | If Port is not aligned on a 32-bit boundary, then ASSERT(). | |
130 | ||
131 | @param Port The I/O port to read. | |
132 | ||
133 | @return The value read. | |
134 | ||
135 | **/ | |
136 | UINT32 | |
137 | EFIAPI | |
138 | IoRead32 ( | |
139 | IN UINTN Port | |
140 | ) | |
141 | { | |
142 | ASSERT (FALSE); | |
143 | return 0; | |
144 | } | |
145 | ||
146 | /** | |
147 | Writes a 32-bit I/O port. | |
148 | ||
149 | Writes the 32-bit I/O port specified by Port with the value specified by Value | |
150 | and returns Value. This function must guarantee that all I/O read and write | |
151 | operations are serialized. | |
152 | ||
153 | If 32-bit I/O port operations are not supported, then ASSERT(). | |
154 | If Port is not aligned on a 32-bit boundary, then ASSERT(). | |
155 | ||
156 | @param Port The I/O port to write. | |
157 | @param Value The value to write to the I/O port. | |
158 | ||
159 | @return The value written to the I/O port. | |
160 | ||
161 | **/ | |
162 | UINT32 | |
163 | EFIAPI | |
164 | IoWrite32 ( | |
165 | IN UINTN Port, | |
166 | IN UINT32 Value | |
167 | ) | |
168 | { | |
169 | ASSERT (FALSE); | |
170 | return 0; | |
171 | } |