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82325f95 | 1 | /** @file\r |
2 | \r | |
3 | Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r | |
d276ac10 HL |
4 | Copyright (c) 2013 - 2014, ARM Ltd. All rights reserved.<BR>\r |
5 | \r | |
82325f95 | 6 | This program and the accompanying materials\r |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | #include <Base.h>\r | |
16 | \r | |
17 | #include <Library/BaseLib.h>\r | |
18 | #include <Library/SemihostLib.h>\r | |
19 | \r | |
20 | #include "SemihostPrivate.h"\r | |
21 | \r | |
22 | BOOLEAN\r | |
23 | SemihostConnectionSupported (\r | |
24 | VOID\r | |
25 | )\r | |
26 | {\r | |
27 | return SEMIHOST_SUPPORTED;\r | |
28 | }\r | |
29 | \r | |
30 | RETURN_STATUS\r | |
31 | SemihostFileOpen (\r | |
32 | IN CHAR8 *FileName,\r | |
33 | IN UINT32 Mode,\r | |
c63626b7 | 34 | OUT UINTN *FileHandle\r |
82325f95 | 35 | )\r |
36 | {\r | |
37 | SEMIHOST_FILE_OPEN_BLOCK OpenBlock;\r | |
38 | INT32 Result;\r | |
39 | \r | |
40 | if (FileHandle == NULL) {\r | |
41 | return RETURN_INVALID_PARAMETER;\r | |
42 | }\r | |
43 | \r | |
8fa3caf2 | 44 | // Remove any leading separator (e.g.: '\'). EFI Shell adds one.\r |
45 | if (*FileName == '\\') {\r | |
46 | FileName++;\r | |
47 | }\r | |
48 | \r | |
82325f95 | 49 | OpenBlock.FileName = FileName;\r |
50 | OpenBlock.Mode = Mode;\r | |
51 | OpenBlock.NameLength = AsciiStrLen(FileName);\r | |
52 | \r | |
53 | Result = Semihost_SYS_OPEN(&OpenBlock);\r | |
54 | \r | |
55 | if (Result == -1) {\r | |
56 | return RETURN_NOT_FOUND;\r | |
57 | } else {\r | |
58 | *FileHandle = Result;\r | |
59 | return RETURN_SUCCESS;\r | |
60 | }\r | |
61 | }\r | |
62 | \r | |
63 | RETURN_STATUS\r | |
64 | SemihostFileSeek (\r | |
c63626b7 | 65 | IN UINTN FileHandle,\r |
66 | IN UINTN Offset\r | |
82325f95 | 67 | )\r |
68 | {\r | |
69 | SEMIHOST_FILE_SEEK_BLOCK SeekBlock;\r | |
70 | INT32 Result;\r | |
71 | \r | |
72 | SeekBlock.Handle = FileHandle;\r | |
73 | SeekBlock.Location = Offset;\r | |
74 | \r | |
75 | Result = Semihost_SYS_SEEK(&SeekBlock);\r | |
76 | \r | |
d276ac10 HL |
77 | // Semihosting does not behave as documented. It returns the offset on\r |
78 | // success.\r | |
79 | if (Result < 0) {\r | |
82325f95 | 80 | return RETURN_ABORTED;\r |
d276ac10 HL |
81 | } else {\r |
82 | return RETURN_SUCCESS;\r | |
82325f95 | 83 | }\r |
84 | }\r | |
85 | \r | |
86 | RETURN_STATUS\r | |
87 | SemihostFileRead (\r | |
c63626b7 | 88 | IN UINTN FileHandle,\r |
89 | IN OUT UINTN *Length,\r | |
82325f95 | 90 | OUT VOID *Buffer\r |
91 | )\r | |
92 | {\r | |
93 | SEMIHOST_FILE_READ_WRITE_BLOCK ReadBlock;\r | |
94 | UINT32 Result;\r | |
95 | \r | |
96 | if ((Length == NULL) || (Buffer == NULL)) {\r | |
97 | return RETURN_INVALID_PARAMETER;\r | |
98 | }\r | |
99 | \r | |
100 | ReadBlock.Handle = FileHandle;\r | |
101 | ReadBlock.Buffer = Buffer;\r | |
102 | ReadBlock.Length = *Length;\r | |
103 | \r | |
104 | Result = Semihost_SYS_READ(&ReadBlock);\r | |
105 | \r | |
d276ac10 | 106 | if ((*Length != 0) && (Result == *Length)) {\r |
82325f95 | 107 | return RETURN_ABORTED;\r |
108 | } else {\r | |
109 | *Length -= Result;\r | |
110 | return RETURN_SUCCESS;\r | |
111 | }\r | |
112 | }\r | |
113 | \r | |
114 | RETURN_STATUS\r | |
115 | SemihostFileWrite (\r | |
c63626b7 | 116 | IN UINTN FileHandle,\r |
117 | IN OUT UINTN *Length,\r | |
82325f95 | 118 | IN VOID *Buffer\r |
119 | )\r | |
120 | {\r | |
121 | SEMIHOST_FILE_READ_WRITE_BLOCK WriteBlock;\r | |
122 | \r | |
123 | if ((Length == NULL) || (Buffer == NULL)) {\r | |
124 | return RETURN_INVALID_PARAMETER;\r | |
125 | }\r | |
126 | \r | |
127 | WriteBlock.Handle = FileHandle;\r | |
128 | WriteBlock.Buffer = Buffer;\r | |
129 | WriteBlock.Length = *Length;\r | |
130 | \r | |
131 | *Length = Semihost_SYS_WRITE(&WriteBlock);\r | |
d276ac10 HL |
132 | \r |
133 | if (*Length != 0)\r | |
134 | return RETURN_ABORTED;\r | |
135 | else\r | |
136 | return RETURN_SUCCESS;\r | |
82325f95 | 137 | }\r |
138 | \r | |
139 | RETURN_STATUS\r | |
140 | SemihostFileClose (\r | |
c63626b7 | 141 | IN UINTN FileHandle\r |
82325f95 | 142 | )\r |
143 | {\r | |
144 | INT32 Result = Semihost_SYS_CLOSE(&FileHandle);\r | |
145 | \r | |
146 | if (Result == -1) {\r | |
147 | return RETURN_INVALID_PARAMETER;\r | |
148 | } else {\r | |
149 | return RETURN_SUCCESS;\r | |
150 | }\r | |
151 | }\r | |
152 | \r | |
153 | RETURN_STATUS\r | |
154 | SemihostFileLength (\r | |
c63626b7 | 155 | IN UINTN FileHandle,\r |
156 | OUT UINTN *Length\r | |
82325f95 | 157 | )\r |
158 | {\r | |
159 | INT32 Result;\r | |
160 | \r | |
161 | if (Length == NULL) {\r | |
162 | return RETURN_INVALID_PARAMETER;\r | |
163 | }\r | |
164 | \r | |
165 | Result = Semihost_SYS_FLEN(&FileHandle);\r | |
166 | \r | |
167 | if (Result == -1) {\r | |
168 | return RETURN_ABORTED;\r | |
169 | } else {\r | |
170 | *Length = Result;\r | |
171 | return RETURN_SUCCESS;\r | |
172 | }\r | |
173 | }\r | |
174 | \r | |
5521b5cc RC |
175 | /**\r |
176 | Get a temporary name for a file from the host running the debug agent.\r | |
177 | \r | |
178 | @param[out] Buffer Pointer to the buffer where the temporary name has to\r | |
179 | be stored\r | |
180 | @param[in] Identifier File name identifier (integer in the range 0 to 255)\r | |
181 | @param[in] Length Length of the buffer to store the temporary name\r | |
182 | \r | |
183 | @retval RETURN_SUCCESS Temporary name returned\r | |
184 | @retval RETURN_INVALID_PARAMETER Invalid buffer address\r | |
185 | @retval RETURN_ABORTED Temporary name not returned\r | |
186 | \r | |
187 | **/\r | |
188 | RETURN_STATUS\r | |
189 | SemihostFileTmpName(\r | |
190 | OUT VOID *Buffer,\r | |
191 | IN UINT8 Identifier,\r | |
192 | IN UINTN Length\r | |
193 | )\r | |
194 | {\r | |
195 | SEMIHOST_FILE_TMPNAME_BLOCK TmpNameBlock;\r | |
196 | INT32 Result;\r | |
197 | \r | |
198 | if (Buffer == NULL) {\r | |
199 | return RETURN_INVALID_PARAMETER;\r | |
200 | }\r | |
201 | \r | |
202 | TmpNameBlock.Buffer = Buffer;\r | |
203 | TmpNameBlock.Identifier = Identifier;\r | |
204 | TmpNameBlock.Length = Length;\r | |
205 | \r | |
206 | Result = Semihost_SYS_TMPNAME (&TmpNameBlock);\r | |
207 | \r | |
208 | if (Result != 0) {\r | |
209 | return RETURN_ABORTED;\r | |
210 | } else {\r | |
211 | return RETURN_SUCCESS;\r | |
212 | }\r | |
213 | }\r | |
214 | \r | |
82325f95 | 215 | RETURN_STATUS\r |
216 | SemihostFileRemove (\r | |
217 | IN CHAR8 *FileName\r | |
218 | )\r | |
219 | {\r | |
220 | SEMIHOST_FILE_REMOVE_BLOCK RemoveBlock;\r | |
221 | UINT32 Result;\r | |
222 | \r | |
d276ac10 HL |
223 | // Remove any leading separator (e.g.: '\'). EFI Shell adds one.\r |
224 | if (*FileName == '\\') {\r | |
225 | FileName++;\r | |
226 | }\r | |
227 | \r | |
82325f95 | 228 | RemoveBlock.FileName = FileName;\r |
229 | RemoveBlock.NameLength = AsciiStrLen(FileName);\r | |
230 | \r | |
231 | Result = Semihost_SYS_REMOVE(&RemoveBlock);\r | |
232 | \r | |
233 | if (Result == 0) {\r | |
234 | return RETURN_SUCCESS;\r | |
235 | } else {\r | |
236 | return RETURN_ABORTED;\r | |
237 | }\r | |
238 | }\r | |
239 | \r | |
5521b5cc RC |
240 | /**\r |
241 | Rename a specified file.\r | |
242 | \r | |
243 | @param[in] FileName Name of the file to rename.\r | |
244 | @param[in] NewFileName The new name of the file.\r | |
245 | \r | |
246 | @retval RETURN_SUCCESS File Renamed\r | |
247 | @retval RETURN_INVALID_PARAMETER Either the current or the new name is not specified\r | |
248 | @retval RETURN_ABORTED Rename failed\r | |
249 | \r | |
250 | **/\r | |
251 | RETURN_STATUS\r | |
252 | SemihostFileRename(\r | |
253 | IN CHAR8 *FileName,\r | |
254 | IN CHAR8 *NewFileName\r | |
255 | )\r | |
256 | {\r | |
257 | SEMIHOST_FILE_RENAME_BLOCK RenameBlock;\r | |
258 | INT32 Result;\r | |
259 | \r | |
260 | if ((FileName == NULL) || (NewFileName == NULL)) {\r | |
261 | return RETURN_INVALID_PARAMETER;\r | |
262 | }\r | |
263 | \r | |
264 | RenameBlock.FileName = FileName;\r | |
265 | RenameBlock.FileNameLength = AsciiStrLen (FileName);\r | |
266 | RenameBlock.NewFileName = NewFileName;\r | |
267 | RenameBlock.NewFileNameLength = AsciiStrLen (NewFileName);\r | |
268 | \r | |
269 | Result = Semihost_SYS_RENAME (&RenameBlock);\r | |
270 | \r | |
271 | if (Result != 0) {\r | |
272 | return RETURN_ABORTED;\r | |
273 | } else {\r | |
274 | return RETURN_SUCCESS;\r | |
275 | }\r | |
276 | }\r | |
277 | \r | |
82325f95 | 278 | CHAR8\r |
279 | SemihostReadCharacter (\r | |
280 | VOID\r | |
281 | )\r | |
282 | {\r | |
283 | return Semihost_SYS_READC();\r | |
284 | }\r | |
285 | \r | |
286 | VOID\r | |
287 | SemihostWriteCharacter (\r | |
288 | IN CHAR8 Character\r | |
289 | )\r | |
290 | {\r | |
291 | Semihost_SYS_WRITEC(&Character);\r | |
292 | }\r | |
293 | \r | |
294 | VOID\r | |
295 | SemihostWriteString (\r | |
296 | IN CHAR8 *String\r | |
297 | )\r | |
298 | {\r | |
299 | Semihost_SYS_WRITE0(String);\r | |
300 | }\r | |
3402aac7 | 301 | \r |
82325f95 | 302 | UINT32\r |
303 | SemihostSystem (\r | |
304 | IN CHAR8 *CommandLine\r | |
305 | )\r | |
306 | {\r | |
307 | SEMIHOST_SYSTEM_BLOCK SystemBlock;\r | |
308 | \r | |
309 | SystemBlock.CommandLine = CommandLine;\r | |
310 | SystemBlock.CommandLength = AsciiStrLen(CommandLine);\r | |
311 | \r | |
312 | return Semihost_SYS_SYSTEM(&SystemBlock);\r | |
313 | }\r |