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b9ec9330 | 1 | /** @file\r |
b2477ca4 | 2 | Unicode Collation Support component that hides the trivial difference of Unicode Collation\r |
b9ec9330 QH |
3 | and Unicode collation 2 Protocol.\r |
4 | \r | |
b2477ca4 | 5 | Copyright (c) 2007 - 2009, Intel Corporation<BR>\r |
b9ec9330 QH |
6 | All rights reserved. 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 | \r | |
657e3612 | 16 | #include "Fat.h"\r |
b9ec9330 | 17 | \r |
b2477ca4 | 18 | EFI_UNICODE_COLLATION_PROTOCOL *mUnicodeCollationInterface = NULL;\r |
b9ec9330 | 19 | \r |
b2477ca4 QH |
20 | /**\r |
21 | Worker function to initialize Unicode Collation support.\r | |
b9ec9330 | 22 | \r |
b2477ca4 QH |
23 | This function searches Initialized Unicode Collation support based on PCDs:\r |
24 | PcdUnicodeCollation2Support and PcdUnicodeCollationSupport.\r | |
25 | It first tries to locate Unicode Collation 2 protocol and matches it with current\r | |
26 | platform language code. If for any reason the first attempt fails, it then tries to\r | |
27 | use Unicode Collation Protocol.\r | |
b9ec9330 | 28 | \r |
b2477ca4 QH |
29 | @param AgentHandle The handle used to open Unicode Collation (2) protocol.\r |
30 | @param ProtocolGuid The pointer to Unicode Collation (2) protocol GUID.\r | |
31 | @param VariableName The name of the RFC 4646 or ISO 639-2 language variable.\r | |
32 | @param DefaultLanguage The default language in case the RFC 4646 or ISO 639-2 language is absent.\r | |
b9ec9330 | 33 | \r |
b2477ca4 QH |
34 | @retval EFI_SUCCESS The Unicode Collation (2) protocol has been successfully located.\r |
35 | @retval Others The Unicode Collation (2) protocol has not been located.\r | |
b9ec9330 | 36 | \r |
b2477ca4 | 37 | **/\r |
b9ec9330 | 38 | EFI_STATUS\r |
b2477ca4 | 39 | InitializeUnicodeCollationSupportWorker (\r |
b9ec9330 | 40 | IN EFI_HANDLE AgentHandle,\r |
b2477ca4 QH |
41 | IN EFI_GUID *ProtocolGuid,\r |
42 | IN CONST CHAR16 *VariableName,\r | |
43 | IN CONST CHAR8 *DefaultLanguage\r | |
b9ec9330 QH |
44 | )\r |
45 | {\r | |
46 | EFI_STATUS Status;\r | |
b2477ca4 | 47 | UINTN NumHandles;\r |
b9ec9330 | 48 | UINTN Index;\r |
b9ec9330 QH |
49 | EFI_HANDLE *Handles;\r |
50 | EFI_UNICODE_COLLATION_PROTOCOL *Uci;\r | |
b2477ca4 QH |
51 | BOOLEAN Iso639Language;\r |
52 | CHAR8 *Language;\r | |
53 | CHAR8 *BestLanguage;\r | |
b9ec9330 QH |
54 | \r |
55 | Status = gBS->LocateHandleBuffer (\r | |
56 | ByProtocol,\r | |
b2477ca4 | 57 | ProtocolGuid,\r |
b9ec9330 | 58 | NULL,\r |
b2477ca4 | 59 | &NumHandles,\r |
b9ec9330 QH |
60 | &Handles\r |
61 | );\r | |
62 | if (EFI_ERROR (Status)) {\r | |
63 | return Status;\r | |
64 | }\r | |
65 | \r | |
b2477ca4 QH |
66 | Iso639Language = (BOOLEAN) (ProtocolGuid == &gEfiUnicodeCollationProtocolGuid);\r |
67 | Language = GetEfiGlobalVariable(VariableName);\r | |
68 | \r | |
69 | Status = EFI_UNSUPPORTED;\r | |
70 | for (Index = 0; Index < NumHandles; Index++) {\r | |
b9ec9330 QH |
71 | //\r |
72 | // Open Unicode Collation Protocol\r | |
73 | //\r | |
74 | Status = gBS->OpenProtocol (\r | |
75 | Handles[Index],\r | |
b2477ca4 | 76 | ProtocolGuid,\r |
b9ec9330 QH |
77 | (VOID **) &Uci,\r |
78 | AgentHandle,\r | |
79 | NULL,\r | |
80 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
81 | );\r | |
82 | if (EFI_ERROR (Status)) {\r | |
83 | continue;\r | |
84 | }\r | |
85 | \r | |
b2477ca4 QH |
86 | //\r |
87 | // Find the best matching matching language from the supported languages\r | |
88 | // of Unicode Collation (2) protocol. \r | |
89 | //\r | |
90 | if (Language == NULL) {\r | |
91 | BestLanguage = GetBestLanguage (\r | |
92 | Uci->SupportedLanguages,\r | |
93 | Iso639Language,\r | |
94 | DefaultLanguage,\r | |
95 | NULL\r | |
96 | );\r | |
97 | } else {\r | |
98 | BestLanguage = GetBestLanguage (\r | |
99 | Uci->SupportedLanguages,\r | |
100 | Iso639Language,\r | |
101 | Language,\r | |
102 | Iso639Language,\r | |
103 | DefaultLanguage,\r | |
104 | NULL\r | |
105 | );\r | |
106 | }\r | |
107 | if (BestLanguage != NULL) {\r | |
108 | FreePool (BestLanguage);\r | |
b9ec9330 | 109 | mUnicodeCollationInterface = Uci;\r |
b2477ca4 | 110 | Status = EFI_SUCCESS;\r |
b9ec9330 QH |
111 | break;\r |
112 | }\r | |
113 | }\r | |
114 | \r | |
b2477ca4 QH |
115 | if (Language != NULL) {\r |
116 | FreePool (Language);\r | |
117 | }\r | |
118 | \r | |
b9ec9330 QH |
119 | FreePool (Handles);\r |
120 | \r | |
b2477ca4 | 121 | return Status;\r |
b9ec9330 QH |
122 | }\r |
123 | \r | |
124 | /**\r | |
125 | Initialize Unicode Collation support.\r | |
126 | \r | |
1f7de705 QH |
127 | This function searches Initialized Unicode Collation support based on PCDs:\r |
128 | PcdUnicodeCollation2Support and PcdUnicodeCollationSupport.\r | |
129 | It first tries to locate Unicode Collation 2 protocol and matches it with current\r | |
130 | platform language code. If for any reason the first attempt fails, it then tries to\r | |
131 | use Unicode Collation Protocol.\r | |
132 | \r | |
b9ec9330 QH |
133 | @param AgentHandle The handle used to open Unicode Collation (2) protocol.\r |
134 | \r | |
135 | @retval EFI_SUCCESS The Unicode Collation (2) protocol has been successfully located.\r | |
136 | @retval Others The Unicode Collation (2) protocol has not been located.\r | |
137 | \r | |
138 | **/\r | |
139 | EFI_STATUS\r | |
140 | InitializeUnicodeCollationSupport (\r | |
141 | IN EFI_HANDLE AgentHandle\r | |
142 | )\r | |
143 | {\r | |
144 | \r | |
145 | EFI_STATUS Status;\r | |
146 | \r | |
147 | Status = EFI_UNSUPPORTED;\r | |
1f7de705 QH |
148 | \r |
149 | //\r | |
b2477ca4 | 150 | // First try to use RFC 4646 Unicode Collation 2 Protocol.\r |
1f7de705 | 151 | //\r |
b9ec9330 | 152 | if (FeaturePcdGet (PcdUnicodeCollation2Support)) {\r |
b2477ca4 QH |
153 | Status = InitializeUnicodeCollationSupportWorker (\r |
154 | AgentHandle,\r | |
155 | &gEfiUnicodeCollation2ProtocolGuid,\r | |
156 | L"PlatformLang",\r | |
157 | (CONST CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultPlatformLang)\r | |
158 | );\r | |
b9ec9330 QH |
159 | }\r |
160 | \r | |
1f7de705 QH |
161 | //\r |
162 | // If the attempt to use Unicode Collation 2 Protocol fails, then we fall back\r | |
163 | // on the ISO 639-2 Unicode Collation Protocol.\r | |
164 | //\r | |
b9ec9330 | 165 | if (FeaturePcdGet (PcdUnicodeCollationSupport) && EFI_ERROR (Status)) {\r |
b2477ca4 QH |
166 | Status = InitializeUnicodeCollationSupportWorker (\r |
167 | AgentHandle,\r | |
168 | &gEfiUnicodeCollationProtocolGuid,\r | |
169 | L"Lang",\r | |
170 | (CONST CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultLang)\r | |
171 | );\r | |
b9ec9330 QH |
172 | }\r |
173 | \r | |
174 | return Status;\r | |
175 | }\r | |
176 | \r | |
b2477ca4 | 177 | \r |
b9ec9330 QH |
178 | /**\r |
179 | Performs a case-insensitive comparison of two Null-terminated Unicode strings.\r | |
180 | \r | |
181 | @param S1 A pointer to a Null-terminated Unicode string.\r | |
182 | @param S2 A pointer to a Null-terminated Unicode string.\r | |
183 | \r | |
184 | @retval 0 S1 is equivalent to S2.\r | |
185 | @retval >0 S1 is lexically greater than S2.\r | |
186 | @retval <0 S1 is lexically less than S2.\r | |
187 | **/\r | |
188 | INTN\r | |
189 | FatStriCmp (\r | |
190 | IN CHAR16 *S1,\r | |
191 | IN CHAR16 *S2\r | |
192 | )\r | |
193 | {\r | |
194 | ASSERT (StrSize (S1) != 0);\r | |
195 | ASSERT (StrSize (S2) != 0);\r | |
196 | ASSERT (mUnicodeCollationInterface != NULL);\r | |
197 | \r | |
198 | return mUnicodeCollationInterface->StriColl (\r | |
199 | mUnicodeCollationInterface,\r | |
200 | S1,\r | |
201 | S2\r | |
202 | );\r | |
203 | }\r | |
204 | \r | |
205 | \r | |
206 | /**\r | |
207 | Uppercase a string.\r | |
208 | \r | |
209 | @param Str The string which will be upper-cased.\r | |
210 | \r | |
211 | @return None.\r | |
212 | \r | |
213 | **/\r | |
214 | VOID\r | |
215 | FatStrUpr (\r | |
216 | IN OUT CHAR16 *String\r | |
217 | )\r | |
218 | {\r | |
219 | ASSERT (StrSize (String) != 0);\r | |
220 | ASSERT (mUnicodeCollationInterface != NULL);\r | |
221 | \r | |
222 | mUnicodeCollationInterface->StrUpr (mUnicodeCollationInterface, String);\r | |
223 | }\r | |
224 | \r | |
225 | \r | |
226 | /**\r | |
227 | Lowercase a string\r | |
228 | \r | |
229 | @param Str The string which will be lower-cased.\r | |
230 | \r | |
231 | @return None\r | |
232 | \r | |
233 | **/\r | |
234 | VOID\r | |
235 | FatStrLwr (\r | |
236 | IN OUT CHAR16 *String\r | |
237 | )\r | |
238 | {\r | |
239 | ASSERT (StrSize (String) != 0);\r | |
240 | ASSERT (mUnicodeCollationInterface != NULL);\r | |
241 | \r | |
242 | mUnicodeCollationInterface->StrLwr (mUnicodeCollationInterface, String);\r | |
243 | }\r | |
244 | \r | |
245 | \r | |
246 | /**\r | |
247 | Convert FAT string to unicode string.\r | |
248 | \r | |
249 | @param FatSize The size of FAT string.\r | |
250 | @param Fat The FAT string.\r | |
251 | @param String The unicode string.\r | |
252 | \r | |
253 | @return None.\r | |
254 | \r | |
255 | **/\r | |
256 | VOID\r | |
257 | FatFatToStr (\r | |
258 | IN UINTN FatSize,\r | |
259 | IN CHAR8 *Fat,\r | |
260 | OUT CHAR16 *String\r | |
261 | )\r | |
262 | {\r | |
263 | ASSERT (Fat != NULL);\r | |
264 | ASSERT (String != NULL);\r | |
8288dd3e | 265 | ASSERT (((UINTN) String & 0x01) == 0);\r |
b9ec9330 QH |
266 | ASSERT (mUnicodeCollationInterface != NULL);\r |
267 | \r | |
268 | mUnicodeCollationInterface->FatToStr (mUnicodeCollationInterface, FatSize, Fat, String);\r | |
269 | }\r | |
270 | \r | |
271 | \r | |
272 | /**\r | |
273 | Convert unicode string to Fat string.\r | |
274 | \r | |
275 | @param String The unicode string.\r | |
276 | @param FatSize The size of the FAT string.\r | |
277 | @param Fat The FAT string.\r | |
278 | \r | |
279 | @retval TRUE Convert successfully.\r | |
280 | @retval FALSE Convert error.\r | |
281 | \r | |
282 | **/\r | |
283 | BOOLEAN\r | |
284 | FatStrToFat (\r | |
285 | IN CHAR16 *String,\r | |
286 | IN UINTN FatSize,\r | |
287 | OUT CHAR8 *Fat\r | |
288 | )\r | |
289 | {\r | |
290 | ASSERT (Fat != NULL);\r | |
291 | ASSERT (StrSize (String) != 0);\r | |
292 | ASSERT (mUnicodeCollationInterface != NULL);\r | |
293 | \r | |
294 | return mUnicodeCollationInterface->StrToFat (\r | |
295 | mUnicodeCollationInterface,\r | |
296 | String,\r | |
297 | FatSize,\r | |
298 | Fat\r | |
299 | );\r | |
300 | }\r |