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632820d1 | 1 | /** @file\r |
2 | Functions to deal with Mem buffer\r | |
3 | \r | |
4 | Copyright (c) 2005 - 2011, Intel Corporation. All rights reserved. <BR>\r | |
5 | This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include "HexEditor.h"\r | |
16 | \r | |
17 | extern EFI_HANDLE HImageHandleBackup;\r | |
18 | \r | |
19 | extern HEFI_EDITOR_BUFFER_IMAGE HBufferImage;\r | |
20 | \r | |
21 | extern BOOLEAN HBufferImageNeedRefresh;\r | |
22 | extern BOOLEAN HBufferImageOnlyLineNeedRefresh;\r | |
23 | extern BOOLEAN HBufferImageMouseNeedRefresh;\r | |
24 | \r | |
25 | extern HEFI_EDITOR_GLOBAL_EDITOR HMainEditor;\r | |
26 | \r | |
27 | HEFI_EDITOR_MEM_IMAGE HMemImage;\r | |
28 | HEFI_EDITOR_MEM_IMAGE HMemImageBackupVar;\r | |
29 | \r | |
30 | EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL DummyPciRootBridgeIo;\r | |
31 | \r | |
32 | //\r | |
33 | // for basic initialization of HDiskImage\r | |
34 | //\r | |
35 | HEFI_EDITOR_MEM_IMAGE HMemImageConst = {\r | |
36 | NULL,\r | |
37 | 0,\r | |
38 | 0\r | |
39 | };\r | |
40 | \r | |
a1d4bfcc | 41 | /**\r |
42 | Empty function. always returns the same.\r | |
43 | \r | |
4ff7e37b ED |
44 | @param[in] This Ignored.\r |
45 | @param[in] Width Ignored.\r | |
46 | @param[in] Address Ignored.\r | |
47 | @param[in] Count Ignored.\r | |
48 | @param[in, out] Buffer Ignored.\r | |
a1d4bfcc | 49 | \r |
50 | @retval EFI_UNSUPPORTED.\r | |
51 | **/\r | |
632820d1 | 52 | EFI_STATUS\r |
2b578de0 | 53 | EFIAPI\r |
632820d1 | 54 | DummyMemRead (\r |
55 | IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL * This,\r | |
56 | IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,\r | |
57 | IN UINT64 Address,\r | |
58 | IN UINTN Count,\r | |
59 | IN OUT VOID *Buffer\r | |
a1d4bfcc | 60 | )\r |
61 | {\r | |
62 | return EFI_UNSUPPORTED;\r | |
63 | }\r | |
64 | \r | |
65 | /**\r | |
66 | Empty function. always returns the same.\r | |
67 | \r | |
4ff7e37b ED |
68 | @param[in] This Ignored.\r |
69 | @param[in] Width Ignored.\r | |
70 | @param[in] Address Ignored.\r | |
71 | @param[in] Count Ignored.\r | |
72 | @param[in, out] Buffer Ignored.\r | |
632820d1 | 73 | \r |
a1d4bfcc | 74 | @retval EFI_UNSUPPORTED.\r |
75 | **/\r | |
632820d1 | 76 | EFI_STATUS\r |
2b578de0 | 77 | EFIAPI\r |
632820d1 | 78 | DummyMemWrite (\r |
79 | IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL * This,\r | |
80 | IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,\r | |
81 | IN UINT64 Address,\r | |
82 | IN UINTN Count,\r | |
83 | IN OUT VOID *Buffer\r | |
a1d4bfcc | 84 | )\r |
85 | {\r | |
86 | return EFI_UNSUPPORTED;\r | |
87 | }\r | |
88 | \r | |
89 | /**\r | |
90 | Initialization function for HDiskImage.\r | |
632820d1 | 91 | \r |
a1d4bfcc | 92 | @retval EFI_SUCCESS The operation was successful.\r |
93 | @retval EFI_LOAD_ERROR A load error occured.\r | |
94 | **/\r | |
632820d1 | 95 | EFI_STATUS\r |
96 | HMemImageInit (\r | |
97 | VOID\r | |
98 | )\r | |
632820d1 | 99 | {\r |
100 | EFI_STATUS Status;\r | |
101 | \r | |
102 | //\r | |
103 | // basically initialize the HMemImage\r | |
104 | //\r | |
105 | CopyMem (&HMemImage, &HMemImageConst, sizeof (HMemImage));\r | |
106 | \r | |
107 | Status = gBS->LocateProtocol (\r | |
108 | &gEfiPciRootBridgeIoProtocolGuid,\r | |
109 | NULL,\r | |
110 | (VOID**)&HMemImage.IoFncs\r | |
111 | );\r | |
112 | if (Status == EFI_NOT_FOUND) {\r | |
113 | //\r | |
114 | // For NT32, no EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL is available\r | |
115 | // Use Dummy PciRootBridgeIo for memory access\r | |
116 | //\r | |
117 | ZeroMem (&DummyPciRootBridgeIo, sizeof (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL));\r | |
118 | DummyPciRootBridgeIo.Mem.Read = DummyMemRead;\r | |
119 | DummyPciRootBridgeIo.Mem.Write = DummyMemWrite;\r | |
120 | HMemImage.IoFncs = &DummyPciRootBridgeIo;\r | |
121 | Status = EFI_SUCCESS;\r | |
122 | }\r | |
123 | if (!EFI_ERROR (Status)) {\r | |
124 | return EFI_SUCCESS;\r | |
125 | } else {\r | |
126 | return EFI_LOAD_ERROR;\r | |
127 | }\r | |
128 | }\r | |
129 | \r | |
a1d4bfcc | 130 | /**\r |
131 | Backup function for HDiskImage. Only a few fields need to be backup. \r | |
132 | This is for making the Disk buffer refresh as few as possible.\r | |
133 | \r | |
134 | @retval EFI_SUCCESS The operation was successful.\r | |
135 | **/\r | |
632820d1 | 136 | EFI_STATUS\r |
137 | HMemImageBackup (\r | |
138 | VOID\r | |
139 | )\r | |
632820d1 | 140 | {\r |
141 | HMemImageBackupVar.Offset = HMemImage.Offset;\r | |
142 | HMemImageBackupVar.Size = HMemImage.Size;\r | |
143 | \r | |
144 | return EFI_SUCCESS;\r | |
145 | }\r | |
146 | \r | |
a1d4bfcc | 147 | /**\r |
148 | Set FileName field in HFileImage.\r | |
632820d1 | 149 | \r |
a1d4bfcc | 150 | @param[in] Offset The offset.\r |
151 | @param[in] Size The size.\r | |
632820d1 | 152 | \r |
a1d4bfcc | 153 | @retval EFI_SUCCESS The operation was successful.\r |
154 | @retval EFI_OUT_OF_RESOURCES A memory allocation failed.\r | |
155 | **/\r | |
632820d1 | 156 | EFI_STATUS\r |
157 | HMemImageSetMemOffsetSize (\r | |
158 | IN UINTN Offset,\r | |
159 | IN UINTN Size\r | |
160 | )\r | |
632820d1 | 161 | {\r |
162 | \r | |
163 | HMemImage.Offset = Offset;\r | |
164 | HMemImage.Size = Size;\r | |
165 | \r | |
166 | return EFI_SUCCESS;\r | |
167 | }\r | |
168 | \r | |
a1d4bfcc | 169 | /**\r |
170 | Read a disk from disk into HBufferImage.\r | |
171 | \r | |
172 | @param[in] Offset The offset.\r | |
173 | @param[in] Size The size.\r | |
174 | @param[in] Recover if is for recover, no information print.\r | |
175 | \r | |
176 | @retval EFI_LOAD_ERROR A load error occured.\r | |
177 | @retval EFI_SUCCESS The operation was successful.\r | |
178 | @retval EFI_OUT_OF_RESOURCES A memory allocation failed.\r | |
179 | **/\r | |
632820d1 | 180 | EFI_STATUS\r |
181 | HMemImageRead (\r | |
a1d4bfcc | 182 | IN UINTN Offset,\r |
183 | IN UINTN Size,\r | |
184 | IN BOOLEAN Recover\r | |
632820d1 | 185 | )\r |
632820d1 | 186 | {\r |
187 | \r | |
188 | EFI_STATUS Status;\r | |
189 | void *Buffer;\r | |
190 | CHAR16 *Str;\r | |
191 | HEFI_EDITOR_LINE *Line;\r | |
192 | \r | |
632820d1 | 193 | HBufferImage.BufferType = FileTypeMemBuffer;\r |
194 | \r | |
195 | Buffer = AllocateZeroPool (Size);\r | |
196 | if (Buffer == NULL) {\r | |
197 | StatusBarSetStatusString (L"Read Memory Failed");\r | |
198 | return EFI_OUT_OF_RESOURCES;\r | |
199 | }\r | |
200 | \r | |
201 | Status = HMemImage.IoFncs->Mem.Read (\r | |
202 | HMemImage.IoFncs,\r | |
203 | EfiPciWidthUint8,\r | |
204 | Offset,\r | |
205 | Size,\r | |
206 | Buffer\r | |
207 | );\r | |
208 | \r | |
209 | if (EFI_ERROR (Status)) {\r | |
210 | FreePool (Buffer);\r | |
211 | StatusBarSetStatusString (L"Memory Specified Not Accessible");\r | |
212 | return EFI_LOAD_ERROR;\r | |
213 | }\r | |
214 | \r | |
215 | HBufferImageFree ();\r | |
216 | \r | |
217 | Status = HBufferImageBufferToList (Buffer, Size);\r | |
218 | FreePool (Buffer);\r | |
219 | \r | |
220 | if (EFI_ERROR (Status)) {\r | |
221 | StatusBarSetStatusString (L"Read Memory Failed");\r | |
222 | return Status;\r | |
223 | }\r | |
224 | \r | |
225 | Status = HMemImageSetMemOffsetSize (Offset, Size);\r | |
226 | \r | |
227 | HBufferImage.DisplayPosition.Row = 2;\r | |
228 | HBufferImage.DisplayPosition.Column = 10;\r | |
229 | \r | |
230 | HBufferImage.MousePosition.Row = 2;\r | |
231 | HBufferImage.MousePosition.Column = 10;\r | |
232 | \r | |
233 | HBufferImage.LowVisibleRow = 1;\r | |
234 | HBufferImage.HighBits = TRUE;\r | |
235 | \r | |
236 | HBufferImage.BufferPosition.Row = 1;\r | |
237 | HBufferImage.BufferPosition.Column = 1;\r | |
238 | \r | |
239 | if (!Recover) {\r | |
240 | Str = CatSPrint(NULL, L"%d Lines Read", HBufferImage.NumLines);\r | |
241 | if (Str == NULL) {\r | |
242 | StatusBarSetStatusString (L"Read Memory Failed");\r | |
243 | return EFI_OUT_OF_RESOURCES;\r | |
244 | }\r | |
245 | \r | |
246 | StatusBarSetStatusString (Str);\r | |
247 | SHELL_FREE_NON_NULL (Str);\r | |
248 | \r | |
249 | HMainEditor.SelectStart = 0;\r | |
250 | HMainEditor.SelectEnd = 0;\r | |
251 | \r | |
252 | }\r | |
253 | \r | |
254 | //\r | |
255 | // has line\r | |
256 | //\r | |
257 | if (HBufferImage.Lines != NULL) {\r | |
258 | HBufferImage.CurrentLine = CR (HBufferImage.ListHead->ForwardLink, HEFI_EDITOR_LINE, Link, EFI_EDITOR_LINE_LIST);\r | |
259 | } else {\r | |
260 | //\r | |
261 | // create a dummy line\r | |
262 | //\r | |
263 | Line = HBufferImageCreateLine ();\r | |
264 | if (Line == NULL) {\r | |
265 | StatusBarSetStatusString (L"Read Memory Failed");\r | |
266 | return EFI_OUT_OF_RESOURCES;\r | |
267 | }\r | |
268 | \r | |
269 | HBufferImage.CurrentLine = Line;\r | |
270 | }\r | |
271 | \r | |
272 | HBufferImage.Modified = FALSE;\r | |
273 | HBufferImageNeedRefresh = TRUE;\r | |
274 | HBufferImageOnlyLineNeedRefresh = FALSE;\r | |
275 | HBufferImageMouseNeedRefresh = TRUE;\r | |
276 | \r | |
277 | return EFI_SUCCESS;\r | |
278 | \r | |
279 | }\r | |
280 | \r | |
a1d4bfcc | 281 | /**\r |
282 | Save lines in HBufferImage to disk.\r | |
283 | \r | |
284 | @param[in] Offset The offset.\r | |
285 | @param[in] Size The size.\r | |
286 | \r | |
287 | @retval EFI_LOAD_ERROR A load error occured.\r | |
288 | @retval EFI_SUCCESS The operation was successful.\r | |
289 | @retval EFI_OUT_OF_RESOURCES A memory allocation failed.\r | |
290 | **/\r | |
632820d1 | 291 | EFI_STATUS\r |
292 | HMemImageSave (\r | |
293 | IN UINTN Offset,\r | |
294 | IN UINTN Size\r | |
295 | )\r | |
632820d1 | 296 | {\r |
297 | \r | |
298 | EFI_STATUS Status;\r | |
299 | VOID *Buffer;\r | |
300 | \r | |
632820d1 | 301 | //\r |
302 | // not modified, so directly return\r | |
303 | //\r | |
304 | if (HBufferImage.Modified == FALSE) {\r | |
305 | return EFI_SUCCESS;\r | |
306 | }\r | |
307 | \r | |
632820d1 | 308 | HBufferImage.BufferType = FileTypeMemBuffer;\r |
309 | \r | |
310 | Buffer = AllocateZeroPool (Size);\r | |
311 | \r | |
312 | if (Buffer == NULL) {\r | |
313 | return EFI_OUT_OF_RESOURCES;\r | |
314 | }\r | |
315 | \r | |
316 | Status = HBufferImageListToBuffer (Buffer, Size);\r | |
317 | if (EFI_ERROR (Status)) {\r | |
318 | FreePool (Buffer);\r | |
319 | return Status;\r | |
320 | }\r | |
321 | //\r | |
322 | // write back to memory\r | |
323 | //\r | |
324 | Status = HMemImage.IoFncs->Mem.Write (\r | |
325 | HMemImage.IoFncs,\r | |
326 | EfiPciWidthUint8,\r | |
327 | Offset,\r | |
328 | Size,\r | |
329 | Buffer\r | |
330 | );\r | |
331 | \r | |
332 | FreePool (Buffer);\r | |
333 | \r | |
334 | if (EFI_ERROR (Status)) {\r | |
335 | return EFI_LOAD_ERROR;\r | |
336 | }\r | |
337 | //\r | |
338 | // now not modified\r | |
339 | //\r | |
340 | HBufferImage.Modified = FALSE;\r | |
341 | \r | |
342 | return EFI_SUCCESS;\r | |
343 | }\r | |
344 | \r | |
632820d1 | 345 | \r |