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2ef2b01e A |
1 | /** @file |
2 | ||
d6ebcab7 | 3 | Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR> |
2ef2b01e | 4 | |
d6ebcab7 | 5 | This program and the accompanying materials |
2ef2b01e A |
6 | are licensed and made available under the terms and conditions of the BSD License |
7 | which accompanies this distribution. The full text of the license may be found at | |
8 | http://opensource.org/licenses/bsd-license.php | |
9 | ||
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
12 | ||
13 | **/ | |
14 | #include <Uefi.h> | |
15 | ||
16 | #include <Library/BaseLib.h> | |
17 | #include <Library/SemihostLib.h> | |
18 | ||
19 | #include "SemihostPrivate.h" | |
20 | ||
21 | BOOLEAN | |
22 | SemihostConnectionSupported ( | |
23 | VOID | |
24 | ) | |
25 | { | |
26 | return SEMIHOST_SUPPORTED; | |
27 | } | |
28 | ||
29 | EFI_STATUS | |
30 | SemihostFileOpen ( | |
31 | IN CHAR8 *FileName, | |
32 | IN UINT32 Mode, | |
33 | OUT UINT32 *FileHandle | |
34 | ) | |
35 | { | |
36 | SEMIHOST_FILE_OPEN_BLOCK OpenBlock; | |
37 | INT32 Result; | |
38 | ||
225290eb | 39 | if (FileHandle == NULL) { |
2ef2b01e | 40 | return EFI_INVALID_PARAMETER; |
225290eb | 41 | } |
2ef2b01e A |
42 | |
43 | OpenBlock.FileName = FileName; | |
44 | OpenBlock.Mode = Mode; | |
45 | OpenBlock.NameLength = AsciiStrLen(FileName); | |
46 | ||
47 | Result = Semihost_SYS_OPEN(&OpenBlock); | |
48 | ||
225290eb | 49 | if (Result == -1) { |
2ef2b01e | 50 | return EFI_NOT_FOUND; |
225290eb | 51 | } else { |
2ef2b01e A |
52 | *FileHandle = Result; |
53 | return EFI_SUCCESS; | |
54 | } | |
55 | } | |
56 | ||
57 | EFI_STATUS | |
58 | SemihostFileSeek ( | |
59 | IN UINT32 FileHandle, | |
60 | IN UINT32 Offset | |
61 | ) | |
62 | { | |
63 | SEMIHOST_FILE_SEEK_BLOCK SeekBlock; | |
64 | INT32 Result; | |
65 | ||
66 | SeekBlock.Handle = FileHandle; | |
67 | SeekBlock.Location = Offset; | |
68 | ||
69 | Result = Semihost_SYS_SEEK(&SeekBlock); | |
70 | ||
225290eb | 71 | if (Result == 0) { |
2ef2b01e | 72 | return EFI_SUCCESS; |
225290eb | 73 | } else { |
2ef2b01e | 74 | return EFI_ABORTED; |
225290eb | 75 | } |
2ef2b01e A |
76 | } |
77 | ||
78 | EFI_STATUS | |
79 | SemihostFileRead ( | |
80 | IN UINT32 FileHandle, | |
81 | IN OUT UINT32 *Length, | |
82 | OUT VOID *Buffer | |
83 | ) | |
84 | { | |
85 | SEMIHOST_FILE_READ_WRITE_BLOCK ReadBlock; | |
86 | UINT32 Result; | |
87 | ||
225290eb A |
88 | if ((Length == NULL) || (Buffer == NULL)) { |
89 | return EFI_INVALID_PARAMETER; | |
90 | } | |
2ef2b01e A |
91 | |
92 | ReadBlock.Handle = FileHandle; | |
93 | ReadBlock.Buffer = Buffer; | |
94 | ReadBlock.Length = *Length; | |
95 | ||
96 | Result = Semihost_SYS_READ(&ReadBlock); | |
97 | ||
225290eb | 98 | if (Result == *Length) { |
2ef2b01e | 99 | return EFI_ABORTED; |
225290eb | 100 | } else { |
2ef2b01e A |
101 | *Length -= Result; |
102 | return EFI_SUCCESS; | |
103 | } | |
104 | } | |
105 | ||
106 | EFI_STATUS | |
107 | SemihostFileWrite ( | |
108 | IN UINT32 FileHandle, | |
109 | IN OUT UINT32 *Length, | |
110 | IN VOID *Buffer | |
111 | ) | |
112 | { | |
113 | SEMIHOST_FILE_READ_WRITE_BLOCK WriteBlock; | |
114 | ||
225290eb | 115 | if ((Length == NULL) || (Buffer == NULL)) { |
2ef2b01e | 116 | return EFI_INVALID_PARAMETER; |
225290eb | 117 | } |
2ef2b01e A |
118 | |
119 | WriteBlock.Handle = FileHandle; | |
120 | WriteBlock.Buffer = Buffer; | |
121 | WriteBlock.Length = *Length; | |
122 | ||
123 | *Length = Semihost_SYS_WRITE(&WriteBlock); | |
124 | ||
125 | return EFI_SUCCESS; | |
126 | } | |
127 | ||
128 | EFI_STATUS | |
129 | SemihostFileClose ( | |
130 | IN UINT32 FileHandle | |
131 | ) | |
132 | { | |
133 | INT32 Result = Semihost_SYS_CLOSE(&FileHandle); | |
134 | ||
225290eb | 135 | if (Result == -1) { |
2ef2b01e | 136 | return EFI_INVALID_PARAMETER; |
225290eb | 137 | } else { |
2ef2b01e | 138 | return EFI_SUCCESS; |
225290eb | 139 | } |
2ef2b01e A |
140 | } |
141 | ||
142 | EFI_STATUS | |
143 | SemihostFileLength ( | |
144 | IN UINT32 FileHandle, | |
145 | OUT UINT32 *Length | |
146 | ) | |
147 | { | |
148 | INT32 Result; | |
149 | ||
225290eb | 150 | if (Length == NULL) { |
2ef2b01e | 151 | return EFI_INVALID_PARAMETER; |
225290eb | 152 | } |
2ef2b01e A |
153 | |
154 | Result = Semihost_SYS_FLEN(&FileHandle); | |
155 | ||
225290eb | 156 | if (Result == -1) { |
2ef2b01e | 157 | return EFI_ABORTED; |
225290eb | 158 | } else { |
2ef2b01e A |
159 | *Length = Result; |
160 | return EFI_SUCCESS; | |
161 | } | |
162 | } | |
163 | ||
164 | EFI_STATUS | |
165 | SemihostFileRemove ( | |
166 | IN CHAR8 *FileName | |
167 | ) | |
168 | { | |
169 | SEMIHOST_FILE_REMOVE_BLOCK RemoveBlock; | |
170 | UINT32 Result; | |
171 | ||
172 | RemoveBlock.FileName = FileName; | |
173 | RemoveBlock.NameLength = AsciiStrLen(FileName); | |
174 | ||
175 | Result = Semihost_SYS_REMOVE(&RemoveBlock); | |
176 | ||
225290eb | 177 | if (Result == 0) { |
2ef2b01e | 178 | return EFI_SUCCESS; |
225290eb | 179 | } else { |
2ef2b01e | 180 | return EFI_ABORTED; |
225290eb | 181 | } |
2ef2b01e A |
182 | } |
183 | ||
184 | CHAR8 | |
185 | SemihostReadCharacter ( | |
186 | VOID | |
187 | ) | |
188 | { | |
189 | return Semihost_SYS_READC(); | |
190 | } | |
191 | ||
192 | VOID | |
193 | SemihostWriteCharacter ( | |
194 | IN CHAR8 Character | |
195 | ) | |
196 | { | |
197 | Semihost_SYS_WRITEC(&Character); | |
198 | } | |
199 | ||
200 | VOID | |
201 | SemihostWriteString ( | |
202 | IN CHAR8 *String | |
203 | ) | |
204 | { | |
205 | Semihost_SYS_WRITE0(String); | |
206 | } | |
207 | ||
208 | UINT32 | |
209 | SemihostSystem ( | |
210 | IN CHAR8 *CommandLine | |
211 | ) | |
212 | { | |
213 | SEMIHOST_SYSTEM_BLOCK SystemBlock; | |
214 | ||
215 | SystemBlock.CommandLine = CommandLine; | |
216 | SystemBlock.CommandLength = AsciiStrLen(CommandLine); | |
217 | ||
218 | return Semihost_SYS_SYSTEM(&SystemBlock); | |
219 | } |