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fb3df220 | 1 | /** @file |
2 | Memory-only library functions with no library constructor/destructor | |
3 | ||
4 | Copyright (c) 2006 - 2007, Intel Corporation | |
5 | All rights reserved. This program and the accompanying materials | |
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 | ||
fb3df220 | 13 | **/ |
14 | ||
15 | #ifndef __BASE_LIB__ | |
16 | #define __BASE_LIB__ | |
17 | ||
18 | // | |
19 | // Definitions for architecture specific types | |
20 | // These include SPIN_LOCK and BASE_LIBRARY_JUMP_BUFFER | |
21 | // | |
22 | ||
23 | // | |
24 | // SPIN_LOCK | |
25 | // | |
26 | typedef volatile UINTN SPIN_LOCK; | |
27 | ||
28 | #if defined (MDE_CPU_IA32) | |
29 | // | |
30 | // IA32 context buffer used by SetJump() and LongJump() | |
31 | // | |
32 | typedef struct { | |
33 | UINT32 Ebx; | |
34 | UINT32 Esi; | |
35 | UINT32 Edi; | |
36 | UINT32 Ebp; | |
37 | UINT32 Esp; | |
38 | UINT32 Eip; | |
39 | } BASE_LIBRARY_JUMP_BUFFER; | |
40 | ||
41 | #define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 8 | |
42 | ||
43 | #elif defined (MDE_CPU_IPF) | |
842f5579 | 44 | |
fb3df220 | 45 | // |
46 | // IPF context buffer used by SetJump() and LongJump() | |
47 | // | |
48 | typedef struct { | |
49 | UINT64 F2[2]; | |
50 | UINT64 F3[2]; | |
51 | UINT64 F4[2]; | |
52 | UINT64 F5[2]; | |
53 | UINT64 F16[2]; | |
54 | UINT64 F17[2]; | |
55 | UINT64 F18[2]; | |
56 | UINT64 F19[2]; | |
57 | UINT64 F20[2]; | |
58 | UINT64 F21[2]; | |
59 | UINT64 F22[2]; | |
60 | UINT64 F23[2]; | |
61 | UINT64 F24[2]; | |
62 | UINT64 F25[2]; | |
63 | UINT64 F26[2]; | |
64 | UINT64 F27[2]; | |
65 | UINT64 F28[2]; | |
66 | UINT64 F29[2]; | |
67 | UINT64 F30[2]; | |
68 | UINT64 F31[2]; | |
69 | UINT64 R4; | |
70 | UINT64 R5; | |
71 | UINT64 R6; | |
72 | UINT64 R7; | |
73 | UINT64 SP; | |
74 | UINT64 BR0; | |
75 | UINT64 BR1; | |
76 | UINT64 BR2; | |
77 | UINT64 BR3; | |
78 | UINT64 BR4; | |
79 | UINT64 BR5; | |
80 | UINT64 InitialUNAT; | |
81 | UINT64 AfterSpillUNAT; | |
82 | UINT64 PFS; | |
83 | UINT64 BSP; | |
84 | UINT64 Predicates; | |
85 | UINT64 LoopCount; | |
86 | UINT64 FPSR; | |
87 | } BASE_LIBRARY_JUMP_BUFFER; | |
88 | ||
89 | #define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 0x10 | |
90 | ||
91 | #elif defined (MDE_CPU_X64) | |
92 | // | |
93 | // X64 context buffer used by SetJump() and LongJump() | |
94 | // | |
95 | typedef struct { | |
96 | UINT64 Rbx; | |
97 | UINT64 Rsp; | |
98 | UINT64 Rbp; | |
99 | UINT64 Rdi; | |
100 | UINT64 Rsi; | |
101 | UINT64 R12; | |
102 | UINT64 R13; | |
103 | UINT64 R14; | |
104 | UINT64 R15; | |
105 | UINT64 Rip; | |
106 | } BASE_LIBRARY_JUMP_BUFFER; | |
107 | ||
108 | #define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 8 | |
109 | ||
110 | #elif defined (MDE_CPU_EBC) | |
111 | // | |
112 | // EBC context buffer used by SetJump() and LongJump() | |
113 | // | |
114 | typedef struct { | |
115 | UINT64 R0; | |
116 | UINT64 R1; | |
117 | UINT64 R2; | |
118 | UINT64 R3; | |
119 | UINT64 IP; | |
120 | } BASE_LIBRARY_JUMP_BUFFER; | |
121 | ||
122 | #define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 8 | |
123 | ||
124 | #else | |
125 | #error Unknown Processor Type | |
126 | #endif | |
127 | ||
128 | // | |
129 | // String Services | |
130 | // | |
131 | ||
132 | /** | |
133 | Copies one Null-terminated Unicode string to another Null-terminated Unicode | |
134 | string and returns the new Unicode string. | |
135 | ||
136 | This function copies the contents of the Unicode string Source to the Unicode | |
137 | string Destination, and returns Destination. If Source and Destination | |
138 | overlap, then the results are undefined. | |
139 | ||
140 | If Destination is NULL, then ASSERT(). | |
141 | If Destination is not aligned on a 16-bit boundary, then ASSERT(). | |
142 | If Source is NULL, then ASSERT(). | |
143 | If Source is not aligned on a 16-bit boundary, then ASSERT(). | |
144 | If Source and Destination overlap, then ASSERT(). | |
145 | If PcdMaximumUnicodeStringLength is not zero, and Source contains more than | |
146 | PcdMaximumUnicodeStringLength Unicode characters not including the | |
147 | Null-terminator, then ASSERT(). | |
148 | ||
149 | @param Destination Pointer to a Null-terminated Unicode string. | |
150 | @param Source Pointer to a Null-terminated Unicode string. | |
151 | ||
152 | @return Destiantion | |
153 | ||
154 | **/ | |
155 | CHAR16 * | |
156 | EFIAPI | |
157 | StrCpy ( | |
158 | OUT CHAR16 *Destination, | |
159 | IN CONST CHAR16 *Source | |
160 | ); | |
161 | ||
162 | ||
163 | /** | |
164 | Copies one Null-terminated Unicode string with a maximum length to another | |
165 | Null-terminated Unicode string with a maximum length and returns the new | |
166 | Unicode string. | |
167 | ||
168 | This function copies the contents of the Unicode string Source to the Unicode | |
169 | string Destination, and returns Destination. At most, Length Unicode | |
170 | characters are copied from Source to Destination. If Length is 0, then | |
171 | Destination is returned unmodified. If Length is greater that the number of | |
172 | Unicode characters in Source, then Destination is padded with Null Unicode | |
173 | characters. If Source and Destination overlap, then the results are | |
174 | undefined. | |
175 | ||
176 | If Length > 0 and Destination is NULL, then ASSERT(). | |
177 | If Length > 0 and Destination is not aligned on a 16-bit boundary, then ASSERT(). | |
178 | If Length > 0 and Source is NULL, then ASSERT(). | |
179 | If Length > 0 and Source is not aligned on a 16-bit bounadry, then ASSERT(). | |
180 | If Source and Destination overlap, then ASSERT(). | |
181 | If PcdMaximumUnicodeStringLength is not zero, and Source contains more than | |
182 | PcdMaximumUnicodeStringLength Unicode characters not including the | |
183 | Null-terminator, then ASSERT(). | |
184 | ||
185 | @param Destination Pointer to a Null-terminated Unicode string. | |
186 | @param Source Pointer to a Null-terminated Unicode string. | |
187 | @param Length Maximum number of Unicode characters to copy. | |
188 | ||
189 | @return Destination | |
190 | ||
191 | **/ | |
192 | CHAR16 * | |
193 | EFIAPI | |
194 | StrnCpy ( | |
195 | OUT CHAR16 *Destination, | |
196 | IN CONST CHAR16 *Source, | |
197 | IN UINTN Length | |
198 | ); | |
199 | ||
200 | ||
201 | /** | |
202 | Returns the length of a Null-terminated Unicode string. | |
203 | ||
204 | This function returns the number of Unicode characters in the Null-terminated | |
205 | Unicode string specified by String. | |
206 | ||
207 | If String is NULL, then ASSERT(). | |
208 | If String is not aligned on a 16-bit boundary, then ASSERT(). | |
209 | If PcdMaximumUnicodeStringLength is not zero, and String contains more than | |
210 | PcdMaximumUnicodeStringLength Unicode characters not including the | |
211 | Null-terminator, then ASSERT(). | |
212 | ||
213 | @param String Pointer to a Null-terminated Unicode string. | |
214 | ||
215 | @return The length of String. | |
216 | ||
217 | **/ | |
218 | UINTN | |
219 | EFIAPI | |
220 | StrLen ( | |
221 | IN CONST CHAR16 *String | |
222 | ); | |
223 | ||
224 | ||
225 | /** | |
226 | Returns the size of a Null-terminated Unicode string in bytes, including the | |
227 | Null terminator. | |
228 | ||
229 | This function returns the size, in bytes, of the Null-terminated Unicode | |
230 | string specified by String. | |
231 | ||
232 | If String is NULL, then ASSERT(). | |
233 | If String is not aligned on a 16-bit boundary, then ASSERT(). | |
234 | If PcdMaximumUnicodeStringLength is not zero, and String contains more than | |
235 | PcdMaximumUnicodeStringLength Unicode characters not including the | |
236 | Null-terminator, then ASSERT(). | |
237 | ||
238 | @param String Pointer to a Null-terminated Unicode string. | |
239 | ||
240 | @return The size of String. | |
241 | ||
242 | **/ | |
243 | UINTN | |
244 | EFIAPI | |
245 | StrSize ( | |
246 | IN CONST CHAR16 *String | |
247 | ); | |
248 | ||
249 | ||
250 | /** | |
251 | Compares two Null-terminated Unicode strings, and returns the difference | |
252 | between the first mismatched Unicode characters. | |
253 | ||
254 | This function compares the Null-terminated Unicode string FirstString to the | |
255 | Null-terminated Unicode string SecondString. If FirstString is identical to | |
256 | SecondString, then 0 is returned. Otherwise, the value returned is the first | |
257 | mismatched Unicode character in SecondString subtracted from the first | |
258 | mismatched Unicode character in FirstString. | |
259 | ||
260 | If FirstString is NULL, then ASSERT(). | |
261 | If FirstString is not aligned on a 16-bit boundary, then ASSERT(). | |
262 | If SecondString is NULL, then ASSERT(). | |
263 | If SecondString is not aligned on a 16-bit boundary, then ASSERT(). | |
264 | If PcdMaximumUnicodeStringLength is not zero, and FirstString contains more | |
265 | than PcdMaximumUnicodeStringLength Unicode characters not including the | |
266 | Null-terminator, then ASSERT(). | |
267 | If PcdMaximumUnicodeStringLength is not zero, and SecondString contains more | |
268 | than PcdMaximumUnicodeStringLength Unicode characters not including the | |
269 | Null-terminator, then ASSERT(). | |
270 | ||
271 | @param FirstString Pointer to a Null-terminated Unicode string. | |
272 | @param SecondString Pointer to a Null-terminated Unicode string. | |
273 | ||
274 | @retval 0 FirstString is identical to SecondString. | |
275 | @retval !=0 FirstString is not identical to SecondString. | |
276 | ||
277 | **/ | |
278 | INTN | |
279 | EFIAPI | |
280 | StrCmp ( | |
281 | IN CONST CHAR16 *FirstString, | |
282 | IN CONST CHAR16 *SecondString | |
283 | ); | |
284 | ||
285 | ||
286 | /** | |
287 | Compares two Null-terminated Unicode strings with maximum lengths, and | |
288 | returns the difference between the first mismatched Unicode characters. | |
289 | ||
290 | This function compares the Null-terminated Unicode string FirstString to the | |
291 | Null-terminated Unicode string SecondString. At most, Length Unicode | |
292 | characters will be compared. If Length is 0, then 0 is returned. If | |
293 | FirstString is identical to SecondString, then 0 is returned. Otherwise, the | |
294 | value returned is the first mismatched Unicode character in SecondString | |
295 | subtracted from the first mismatched Unicode character in FirstString. | |
296 | ||
297 | If Length > 0 and FirstString is NULL, then ASSERT(). | |
298 | If Length > 0 and FirstString is not aligned on a 16-bit bounadary, then ASSERT(). | |
299 | If Length > 0 and SecondString is NULL, then ASSERT(). | |
300 | If Length > 0 and SecondString is not aligned on a 16-bit bounadary, then ASSERT(). | |
301 | If PcdMaximumUnicodeStringLength is not zero, and FirstString contains more | |
302 | than PcdMaximumUnicodeStringLength Unicode characters not including the | |
303 | Null-terminator, then ASSERT(). | |
304 | If PcdMaximumUnicodeStringLength is not zero, and SecondString contains more | |
305 | than PcdMaximumUnicodeStringLength Unicode characters not including the | |
306 | Null-terminator, then ASSERT(). | |
307 | ||
308 | @param FirstString Pointer to a Null-terminated Unicode string. | |
309 | @param SecondString Pointer to a Null-terminated Unicode string. | |
310 | @param Length Maximum number of Unicode characters to compare. | |
311 | ||
312 | @retval 0 FirstString is identical to SecondString. | |
313 | @retval !=0 FirstString is not identical to SecondString. | |
314 | ||
315 | **/ | |
316 | INTN | |
317 | EFIAPI | |
318 | StrnCmp ( | |
319 | IN CONST CHAR16 *FirstString, | |
320 | IN CONST CHAR16 *SecondString, | |
321 | IN UINTN Length | |
322 | ); | |
323 | ||
324 | ||
325 | /** | |
326 | Concatenates one Null-terminated Unicode string to another Null-terminated | |
327 | Unicode string, and returns the concatenated Unicode string. | |
328 | ||
329 | This function concatenates two Null-terminated Unicode strings. The contents | |
330 | of Null-terminated Unicode string Source are concatenated to the end of | |
331 | Null-terminated Unicode string Destination. The Null-terminated concatenated | |
332 | Unicode String is returned. If Source and Destination overlap, then the | |
333 | results are undefined. | |
334 | ||
335 | If Destination is NULL, then ASSERT(). | |
336 | If Destination is not aligned on a 16-bit bounadary, then ASSERT(). | |
337 | If Source is NULL, then ASSERT(). | |
338 | If Source is not aligned on a 16-bit bounadary, then ASSERT(). | |
339 | If Source and Destination overlap, then ASSERT(). | |
340 | If PcdMaximumUnicodeStringLength is not zero, and Destination contains more | |
341 | than PcdMaximumUnicodeStringLength Unicode characters not including the | |
342 | Null-terminator, then ASSERT(). | |
343 | If PcdMaximumUnicodeStringLength is not zero, and Source contains more than | |
344 | PcdMaximumUnicodeStringLength Unicode characters not including the | |
345 | Null-terminator, then ASSERT(). | |
346 | If PcdMaximumUnicodeStringLength is not zero, and concatenating Destination | |
347 | and Source results in a Unicode string with more than | |
348 | PcdMaximumUnicodeStringLength Unicode characters not including the | |
349 | Null-terminator, then ASSERT(). | |
350 | ||
351 | @param Destination Pointer to a Null-terminated Unicode string. | |
352 | @param Source Pointer to a Null-terminated Unicode string. | |
353 | ||
354 | @return Destination | |
355 | ||
356 | **/ | |
357 | CHAR16 * | |
358 | EFIAPI | |
359 | StrCat ( | |
360 | IN OUT CHAR16 *Destination, | |
361 | IN CONST CHAR16 *Source | |
362 | ); | |
363 | ||
364 | ||
365 | /** | |
366 | Concatenates one Null-terminated Unicode string with a maximum length to the | |
367 | end of another Null-terminated Unicode string, and returns the concatenated | |
368 | Unicode string. | |
369 | ||
370 | This function concatenates two Null-terminated Unicode strings. The contents | |
371 | of Null-terminated Unicode string Source are concatenated to the end of | |
372 | Null-terminated Unicode string Destination, and Destination is returned. At | |
373 | most, Length Unicode characters are concatenated from Source to the end of | |
374 | Destination, and Destination is always Null-terminated. If Length is 0, then | |
375 | Destination is returned unmodified. If Source and Destination overlap, then | |
376 | the results are undefined. | |
377 | ||
378 | If Destination is NULL, then ASSERT(). | |
379 | If Length > 0 and Destination is not aligned on a 16-bit boundary, then ASSERT(). | |
380 | If Length > 0 and Source is NULL, then ASSERT(). | |
381 | If Length > 0 and Source is not aligned on a 16-bit boundary, then ASSERT(). | |
382 | If Source and Destination overlap, then ASSERT(). | |
383 | If PcdMaximumUnicodeStringLength is not zero, and Destination contains more | |
384 | than PcdMaximumUnicodeStringLength Unicode characters not including the | |
385 | Null-terminator, then ASSERT(). | |
386 | If PcdMaximumUnicodeStringLength is not zero, and Source contains more than | |
387 | PcdMaximumUnicodeStringLength Unicode characters not including the | |
388 | Null-terminator, then ASSERT(). | |
389 | If PcdMaximumUnicodeStringLength is not zero, and concatenating Destination | |
390 | and Source results in a Unicode string with more than | |
391 | PcdMaximumUnicodeStringLength Unicode characters not including the | |
392 | Null-terminator, then ASSERT(). | |
393 | ||
394 | @param Destination Pointer to a Null-terminated Unicode string. | |
395 | @param Source Pointer to a Null-terminated Unicode string. | |
396 | @param Length Maximum number of Unicode characters to concatenate from | |
397 | Source. | |
398 | ||
399 | @return Destination | |
400 | ||
401 | **/ | |
402 | CHAR16 * | |
403 | EFIAPI | |
404 | StrnCat ( | |
405 | IN OUT CHAR16 *Destination, | |
406 | IN CONST CHAR16 *Source, | |
407 | IN UINTN Length | |
408 | ); | |
409 | ||
410 | /** | |
411 | Returns the first occurance of a Null-terminated Unicode sub-string | |
412 | in a Null-terminated Unicode string. | |
413 | ||
414 | This function scans the contents of the Null-terminated Unicode string | |
415 | specified by String and returns the first occurrence of SearchString. | |
416 | If SearchString is not found in String, then NULL is returned. If | |
417 | the length of SearchString is zero, then String is | |
418 | returned. | |
419 | ||
420 | If String is NULL, then ASSERT(). | |
421 | If String is not aligned on a 16-bit boundary, then ASSERT(). | |
422 | If SearchString is NULL, then ASSERT(). | |
423 | If SearchString is not aligned on a 16-bit boundary, then ASSERT(). | |
424 | ||
425 | If PcdMaximumUnicodeStringLength is not zero, and SearchString | |
426 | or String contains more than PcdMaximumUnicodeStringLength Unicode | |
427 | characters not including the Null-terminator, then ASSERT(). | |
428 | ||
429 | @param String Pointer to a Null-terminated Unicode string. | |
430 | @param SearchString Pointer to a Null-terminated Unicode string to search for. | |
431 | ||
432 | @retval NULL If the SearchString does not appear in String. | |
433 | @retval !NULL If there is a match. | |
434 | ||
435 | **/ | |
436 | CHAR16 * | |
437 | EFIAPI | |
438 | StrStr ( | |
439 | IN CONST CHAR16 *String, | |
440 | IN CONST CHAR16 *SearchString | |
441 | ); | |
442 | ||
443 | /** | |
444 | Convert a Null-terminated Unicode decimal string to a value of | |
445 | type UINTN. | |
446 | ||
447 | This function returns a value of type UINTN by interpreting the contents | |
448 | of the Unicode string specified by String as a decimal number. The format | |
449 | of the input Unicode string String is: | |
450 | ||
451 | [spaces] [decimal digits]. | |
452 | ||
453 | The valid decimal digit character is in the range [0-9]. The | |
454 | function will ignore the pad space, which includes spaces or | |
455 | tab characters, before [decimal digits]. The running zero in the | |
456 | beginning of [decimal digits] will be ignored. Then, the function | |
457 | stops at the first character that is a not a valid decimal character | |
458 | or a Null-terminator, whichever one comes first. | |
459 | ||
460 | If String is NULL, then ASSERT(). | |
461 | If String is not aligned in a 16-bit boundary, then ASSERT(). | |
462 | If String has only pad spaces, then 0 is returned. | |
463 | If String has no pad spaces or valid decimal digits, | |
464 | then 0 is returned. | |
465 | If the number represented by String overflows according | |
466 | to the range defined by UINTN, then ASSERT(). | |
467 | ||
468 | If PcdMaximumUnicodeStringLength is not zero, and String contains | |
469 | more than PcdMaximumUnicodeStringLength Unicode characters not including | |
470 | the Null-terminator, then ASSERT(). | |
471 | ||
472 | @param String Pointer to a Null-terminated Unicode string. | |
473 | ||
474 | @retval UINTN | |
475 | ||
476 | **/ | |
477 | UINTN | |
478 | EFIAPI | |
479 | StrDecimalToUintn ( | |
480 | IN CONST CHAR16 *String | |
481 | ); | |
482 | ||
483 | /** | |
484 | Convert a Null-terminated Unicode decimal string to a value of | |
485 | type UINT64. | |
486 | ||
487 | This function returns a value of type UINT64 by interpreting the contents | |
488 | of the Unicode string specified by String as a decimal number. The format | |
489 | of the input Unicode string String is: | |
490 | ||
491 | [spaces] [decimal digits]. | |
492 | ||
493 | The valid decimal digit character is in the range [0-9]. The | |
494 | function will ignore the pad space, which includes spaces or | |
495 | tab characters, before [decimal digits]. The running zero in the | |
496 | beginning of [decimal digits] will be ignored. Then, the function | |
497 | stops at the first character that is a not a valid decimal character | |
498 | or a Null-terminator, whichever one comes first. | |
499 | ||
500 | If String is NULL, then ASSERT(). | |
501 | If String is not aligned in a 16-bit boundary, then ASSERT(). | |
502 | If String has only pad spaces, then 0 is returned. | |
503 | If String has no pad spaces or valid decimal digits, | |
504 | then 0 is returned. | |
505 | If the number represented by String overflows according | |
506 | to the range defined by UINT64, then ASSERT(). | |
507 | ||
508 | If PcdMaximumUnicodeStringLength is not zero, and String contains | |
509 | more than PcdMaximumUnicodeStringLength Unicode characters not including | |
510 | the Null-terminator, then ASSERT(). | |
511 | ||
512 | @param String Pointer to a Null-terminated Unicode string. | |
513 | ||
514 | @retval UINT64 | |
515 | ||
516 | **/ | |
517 | UINT64 | |
518 | EFIAPI | |
519 | StrDecimalToUint64 ( | |
520 | IN CONST CHAR16 *String | |
521 | ); | |
522 | ||
523 | ||
524 | /** | |
525 | Convert a Null-terminated Unicode hexadecimal string to a value of type UINTN. | |
526 | ||
527 | This function returns a value of type UINTN by interpreting the contents | |
528 | of the Unicode string specified by String as a hexadecimal number. | |
529 | The format of the input Unicode string String is: | |
530 | ||
531 | [spaces][zeros][x][hexadecimal digits]. | |
532 | ||
533 | The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F]. | |
534 | The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. | |
535 | If "x" appears in the input string, it must be prefixed with at least one 0. | |
536 | The function will ignore the pad space, which includes spaces or tab characters, | |
537 | before [zeros], [x] or [hexadecimal digit]. The running zero before [x] or | |
538 | [hexadecimal digit] will be ignored. Then, the decoding starts after [x] or the | |
539 | first valid hexadecimal digit. Then, the function stops at the first character that is | |
540 | a not a valid hexadecimal character or NULL, whichever one comes first. | |
541 | ||
542 | If String is NULL, then ASSERT(). | |
543 | If String is not aligned in a 16-bit boundary, then ASSERT(). | |
544 | If String has only pad spaces, then zero is returned. | |
545 | If String has no leading pad spaces, leading zeros or valid hexadecimal digits, | |
546 | then zero is returned. | |
547 | If the number represented by String overflows according to the range defined by | |
548 | UINTN, then ASSERT(). | |
549 | ||
550 | If PcdMaximumUnicodeStringLength is not zero, and String contains more than | |
551 | PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, | |
552 | then ASSERT(). | |
553 | ||
554 | @param String Pointer to a Null-terminated Unicode string. | |
555 | ||
556 | @retval UINTN | |
557 | ||
558 | **/ | |
559 | UINTN | |
560 | EFIAPI | |
561 | StrHexToUintn ( | |
562 | IN CONST CHAR16 *String | |
563 | ); | |
564 | ||
565 | ||
566 | /** | |
567 | Convert a Null-terminated Unicode hexadecimal string to a value of type UINT64. | |
568 | ||
569 | This function returns a value of type UINT64 by interpreting the contents | |
570 | of the Unicode string specified by String as a hexadecimal number. | |
571 | The format of the input Unicode string String is | |
572 | ||
573 | [spaces][zeros][x][hexadecimal digits]. | |
574 | ||
575 | The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F]. | |
576 | The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. | |
577 | If "x" appears in the input string, it must be prefixed with at least one 0. | |
578 | The function will ignore the pad space, which includes spaces or tab characters, | |
579 | before [zeros], [x] or [hexadecimal digit]. The running zero before [x] or | |
580 | [hexadecimal digit] will be ignored. Then, the decoding starts after [x] or the | |
581 | first valid hexadecimal digit. Then, the function stops at the first character that is | |
582 | a not a valid hexadecimal character or NULL, whichever one comes first. | |
583 | ||
584 | If String is NULL, then ASSERT(). | |
585 | If String is not aligned in a 16-bit boundary, then ASSERT(). | |
586 | If String has only pad spaces, then zero is returned. | |
587 | If String has no leading pad spaces, leading zeros or valid hexadecimal digits, | |
588 | then zero is returned. | |
589 | If the number represented by String overflows according to the range defined by | |
590 | UINT64, then ASSERT(). | |
591 | ||
592 | If PcdMaximumUnicodeStringLength is not zero, and String contains more than | |
593 | PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, | |
594 | then ASSERT(). | |
595 | ||
596 | @param String Pointer to a Null-terminated Unicode string. | |
597 | ||
598 | @retval UINT64 | |
599 | ||
600 | **/ | |
601 | UINT64 | |
602 | EFIAPI | |
603 | StrHexToUint64 ( | |
604 | IN CONST CHAR16 *String | |
605 | ); | |
606 | ||
607 | ||
608 | /** | |
609 | Convert one Null-terminated Unicode string to a Null-terminated | |
610 | ASCII string and returns the ASCII string. | |
611 | ||
612 | This function converts the content of the Unicode string Source | |
613 | to the ASCII string Destination by copying the lower 8 bits of | |
614 | each Unicode character. It returns Destination. | |
615 | ||
616 | If any Unicode characters in Source contain non-zero value in | |
617 | the upper 8 bits, then ASSERT(). | |
618 | ||
619 | If Destination is NULL, then ASSERT(). | |
620 | If Source is NULL, then ASSERT(). | |
621 | If Source is not aligned on a 16-bit boundary, then ASSERT(). | |
622 | If Source and Destination overlap, then ASSERT(). | |
623 | ||
624 | If PcdMaximumUnicodeStringLength is not zero, and Source contains | |
625 | more than PcdMaximumUnicodeStringLength Unicode characters not including | |
626 | the Null-terminator, then ASSERT(). | |
627 | ||
628 | If PcdMaximumAsciiStringLength is not zero, and Source contains more | |
629 | than PcdMaximumAsciiStringLength Unicode characters not including the | |
630 | Null-terminator, then ASSERT(). | |
631 | ||
632 | @param Source Pointer to a Null-terminated Unicode string. | |
633 | @param Destination Pointer to a Null-terminated ASCII string. | |
634 | ||
635 | @reture Destination | |
636 | ||
637 | **/ | |
638 | CHAR8 * | |
639 | EFIAPI | |
640 | UnicodeStrToAsciiStr ( | |
641 | IN CONST CHAR16 *Source, | |
642 | OUT CHAR8 *Destination | |
643 | ); | |
644 | ||
645 | ||
646 | /** | |
647 | Copies one Null-terminated ASCII string to another Null-terminated ASCII | |
648 | string and returns the new ASCII string. | |
649 | ||
650 | This function copies the contents of the ASCII string Source to the ASCII | |
651 | string Destination, and returns Destination. If Source and Destination | |
652 | overlap, then the results are undefined. | |
653 | ||
654 | If Destination is NULL, then ASSERT(). | |
655 | If Source is NULL, then ASSERT(). | |
656 | If Source and Destination overlap, then ASSERT(). | |
657 | If PcdMaximumAsciiStringLength is not zero and Source contains more than | |
658 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, | |
659 | then ASSERT(). | |
660 | ||
661 | @param Destination Pointer to a Null-terminated ASCII string. | |
662 | @param Source Pointer to a Null-terminated ASCII string. | |
663 | ||
664 | @return Destination | |
665 | ||
666 | **/ | |
667 | CHAR8 * | |
668 | EFIAPI | |
669 | AsciiStrCpy ( | |
670 | OUT CHAR8 *Destination, | |
671 | IN CONST CHAR8 *Source | |
672 | ); | |
673 | ||
674 | ||
675 | /** | |
676 | Copies one Null-terminated ASCII string with a maximum length to another | |
677 | Null-terminated ASCII string with a maximum length and returns the new ASCII | |
678 | string. | |
679 | ||
680 | This function copies the contents of the ASCII string Source to the ASCII | |
681 | string Destination, and returns Destination. At most, Length ASCII characters | |
682 | are copied from Source to Destination. If Length is 0, then Destination is | |
683 | returned unmodified. If Length is greater that the number of ASCII characters | |
684 | in Source, then Destination is padded with Null ASCII characters. If Source | |
685 | and Destination overlap, then the results are undefined. | |
686 | ||
687 | If Destination is NULL, then ASSERT(). | |
688 | If Source is NULL, then ASSERT(). | |
689 | If Source and Destination overlap, then ASSERT(). | |
690 | If PcdMaximumAsciiStringLength is not zero, and Source contains more than | |
691 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, | |
692 | then ASSERT(). | |
693 | ||
694 | @param Destination Pointer to a Null-terminated ASCII string. | |
695 | @param Source Pointer to a Null-terminated ASCII string. | |
696 | @param Length Maximum number of ASCII characters to copy. | |
697 | ||
698 | @return Destination | |
699 | ||
700 | **/ | |
701 | CHAR8 * | |
702 | EFIAPI | |
703 | AsciiStrnCpy ( | |
704 | OUT CHAR8 *Destination, | |
705 | IN CONST CHAR8 *Source, | |
706 | IN UINTN Length | |
707 | ); | |
708 | ||
709 | ||
710 | /** | |
711 | Returns the length of a Null-terminated ASCII string. | |
712 | ||
713 | This function returns the number of ASCII characters in the Null-terminated | |
714 | ASCII string specified by String. | |
715 | ||
716 | If Length > 0 and Destination is NULL, then ASSERT(). | |
717 | If Length > 0 and Source is NULL, then ASSERT(). | |
718 | If PcdMaximumAsciiStringLength is not zero and String contains more than | |
719 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, | |
720 | then ASSERT(). | |
721 | ||
722 | @param String Pointer to a Null-terminated ASCII string. | |
723 | ||
724 | @return The length of String. | |
725 | ||
726 | **/ | |
727 | UINTN | |
728 | EFIAPI | |
729 | AsciiStrLen ( | |
730 | IN CONST CHAR8 *String | |
731 | ); | |
732 | ||
733 | ||
734 | /** | |
735 | Returns the size of a Null-terminated ASCII string in bytes, including the | |
736 | Null terminator. | |
737 | ||
738 | This function returns the size, in bytes, of the Null-terminated ASCII string | |
739 | specified by String. | |
740 | ||
741 | If String is NULL, then ASSERT(). | |
742 | If PcdMaximumAsciiStringLength is not zero and String contains more than | |
743 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, | |
744 | then ASSERT(). | |
745 | ||
746 | @param String Pointer to a Null-terminated ASCII string. | |
747 | ||
748 | @return The size of String. | |
749 | ||
750 | **/ | |
751 | UINTN | |
752 | EFIAPI | |
753 | AsciiStrSize ( | |
754 | IN CONST CHAR8 *String | |
755 | ); | |
756 | ||
757 | ||
758 | /** | |
759 | Compares two Null-terminated ASCII strings, and returns the difference | |
760 | between the first mismatched ASCII characters. | |
761 | ||
762 | This function compares the Null-terminated ASCII string FirstString to the | |
763 | Null-terminated ASCII string SecondString. If FirstString is identical to | |
764 | SecondString, then 0 is returned. Otherwise, the value returned is the first | |
765 | mismatched ASCII character in SecondString subtracted from the first | |
766 | mismatched ASCII character in FirstString. | |
767 | ||
768 | If FirstString is NULL, then ASSERT(). | |
769 | If SecondString is NULL, then ASSERT(). | |
770 | If PcdMaximumAsciiStringLength is not zero and FirstString contains more than | |
771 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, | |
772 | then ASSERT(). | |
773 | If PcdMaximumAsciiStringLength is not zero and SecondString contains more | |
774 | than PcdMaximumAsciiStringLength ASCII characters not including the | |
775 | Null-terminator, then ASSERT(). | |
776 | ||
777 | @param FirstString Pointer to a Null-terminated ASCII string. | |
778 | @param SecondString Pointer to a Null-terminated ASCII string. | |
779 | ||
780 | @retval 0 FirstString is identical to SecondString. | |
781 | @retval !=0 FirstString is not identical to SecondString. | |
782 | ||
783 | **/ | |
784 | INTN | |
785 | EFIAPI | |
786 | AsciiStrCmp ( | |
787 | IN CONST CHAR8 *FirstString, | |
788 | IN CONST CHAR8 *SecondString | |
789 | ); | |
790 | ||
791 | ||
792 | /** | |
793 | Performs a case insensitive comparison of two Null-terminated ASCII strings, | |
794 | and returns the difference between the first mismatched ASCII characters. | |
795 | ||
796 | This function performs a case insensitive comparison of the Null-terminated | |
797 | ASCII string FirstString to the Null-terminated ASCII string SecondString. If | |
798 | FirstString is identical to SecondString, then 0 is returned. Otherwise, the | |
799 | value returned is the first mismatched lower case ASCII character in | |
800 | SecondString subtracted from the first mismatched lower case ASCII character | |
801 | in FirstString. | |
802 | ||
803 | If FirstString is NULL, then ASSERT(). | |
804 | If SecondString is NULL, then ASSERT(). | |
805 | If PcdMaximumAsciiStringLength is not zero and FirstString contains more than | |
806 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, | |
807 | then ASSERT(). | |
808 | If PcdMaximumAsciiStringLength is not zero and SecondString contains more | |
809 | than PcdMaximumAsciiStringLength ASCII characters not including the | |
810 | Null-terminator, then ASSERT(). | |
811 | ||
812 | @param FirstString Pointer to a Null-terminated ASCII string. | |
813 | @param SecondString Pointer to a Null-terminated ASCII string. | |
814 | ||
815 | @retval 0 FirstString is identical to SecondString using case insensitive | |
816 | comparisons. | |
817 | @retval !=0 FirstString is not identical to SecondString using case | |
818 | insensitive comparisons. | |
819 | ||
820 | **/ | |
821 | INTN | |
822 | EFIAPI | |
823 | AsciiStriCmp ( | |
824 | IN CONST CHAR8 *FirstString, | |
825 | IN CONST CHAR8 *SecondString | |
826 | ); | |
827 | ||
828 | ||
829 | /** | |
830 | Compares two Null-terminated ASCII strings with maximum lengths, and returns | |
831 | the difference between the first mismatched ASCII characters. | |
832 | ||
833 | This function compares the Null-terminated ASCII string FirstString to the | |
834 | Null-terminated ASCII string SecondString. At most, Length ASCII characters | |
835 | will be compared. If Length is 0, then 0 is returned. If FirstString is | |
836 | identical to SecondString, then 0 is returned. Otherwise, the value returned | |
837 | is the first mismatched ASCII character in SecondString subtracted from the | |
838 | first mismatched ASCII character in FirstString. | |
839 | ||
840 | If Length > 0 and FirstString is NULL, then ASSERT(). | |
841 | If Length > 0 and SecondString is NULL, then ASSERT(). | |
842 | If PcdMaximumAsciiStringLength is not zero and FirstString contains more than | |
843 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, | |
844 | then ASSERT(). | |
845 | If PcdMaximumAsciiStringLength is not zero and SecondString contains more than | |
846 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, | |
847 | then ASSERT(). | |
848 | ||
849 | @param FirstString Pointer to a Null-terminated ASCII string. | |
850 | @param SecondString Pointer to a Null-terminated ASCII string. | |
851 | ||
852 | @retval 0 FirstString is identical to SecondString. | |
853 | @retval !=0 FirstString is not identical to SecondString. | |
854 | ||
855 | **/ | |
856 | INTN | |
857 | EFIAPI | |
858 | AsciiStrnCmp ( | |
859 | IN CONST CHAR8 *FirstString, | |
860 | IN CONST CHAR8 *SecondString, | |
861 | IN UINTN Length | |
862 | ); | |
863 | ||
864 | ||
865 | /** | |
866 | Concatenates one Null-terminated ASCII string to another Null-terminated | |
867 | ASCII string, and returns the concatenated ASCII string. | |
868 | ||
869 | This function concatenates two Null-terminated ASCII strings. The contents of | |
870 | Null-terminated ASCII string Source are concatenated to the end of Null- | |
871 | terminated ASCII string Destination. The Null-terminated concatenated ASCII | |
872 | String is returned. | |
873 | ||
874 | If Destination is NULL, then ASSERT(). | |
875 | If Source is NULL, then ASSERT(). | |
876 | If PcdMaximumAsciiStringLength is not zero and Destination contains more than | |
877 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, | |
878 | then ASSERT(). | |
879 | If PcdMaximumAsciiStringLength is not zero and Source contains more than | |
880 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, | |
881 | then ASSERT(). | |
882 | If PcdMaximumAsciiStringLength is not zero and concatenating Destination and | |
883 | Source results in a ASCII string with more than PcdMaximumAsciiStringLength | |
884 | ASCII characters, then ASSERT(). | |
885 | ||
886 | @param Destination Pointer to a Null-terminated ASCII string. | |
887 | @param Source Pointer to a Null-terminated ASCII string. | |
888 | ||
889 | @return Destination | |
890 | ||
891 | **/ | |
892 | CHAR8 * | |
893 | EFIAPI | |
894 | AsciiStrCat ( | |
895 | IN OUT CHAR8 *Destination, | |
896 | IN CONST CHAR8 *Source | |
897 | ); | |
898 | ||
899 | ||
900 | /** | |
901 | Concatenates one Null-terminated ASCII string with a maximum length to the | |
902 | end of another Null-terminated ASCII string, and returns the concatenated | |
903 | ASCII string. | |
904 | ||
905 | This function concatenates two Null-terminated ASCII strings. The contents | |
906 | of Null-terminated ASCII string Source are concatenated to the end of Null- | |
907 | terminated ASCII string Destination, and Destination is returned. At most, | |
908 | Length ASCII characters are concatenated from Source to the end of | |
909 | Destination, and Destination is always Null-terminated. If Length is 0, then | |
910 | Destination is returned unmodified. If Source and Destination overlap, then | |
911 | the results are undefined. | |
912 | ||
913 | If Length > 0 and Destination is NULL, then ASSERT(). | |
914 | If Length > 0 and Source is NULL, then ASSERT(). | |
915 | If Source and Destination overlap, then ASSERT(). | |
916 | If PcdMaximumAsciiStringLength is not zero, and Destination contains more than | |
917 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, | |
918 | then ASSERT(). | |
919 | If PcdMaximumAsciiStringLength is not zero, and Source contains more than | |
920 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, | |
921 | then ASSERT(). | |
922 | If PcdMaximumAsciiStringLength is not zero, and concatenating Destination and | |
923 | Source results in a ASCII string with more than PcdMaximumAsciiStringLength | |
924 | ASCII characters not including the Null-terminator, then ASSERT(). | |
925 | ||
926 | @param Destination Pointer to a Null-terminated ASCII string. | |
927 | @param Source Pointer to a Null-terminated ASCII string. | |
928 | @param Length Maximum number of ASCII characters to concatenate from | |
929 | Source. | |
930 | ||
931 | @return Destination | |
932 | ||
933 | **/ | |
934 | CHAR8 * | |
935 | EFIAPI | |
936 | AsciiStrnCat ( | |
937 | IN OUT CHAR8 *Destination, | |
938 | IN CONST CHAR8 *Source, | |
939 | IN UINTN Length | |
940 | ); | |
941 | ||
942 | ||
943 | /** | |
944 | Returns the first occurance of a Null-terminated ASCII sub-string | |
945 | in a Null-terminated ASCII string. | |
946 | ||
947 | This function scans the contents of the ASCII string specified by String | |
948 | and returns the first occurrence of SearchString. If SearchString is not | |
949 | found in String, then NULL is returned. If the length of SearchString is zero, | |
950 | then String is returned. | |
951 | ||
952 | If String is NULL, then ASSERT(). | |
953 | If SearchString is NULL, then ASSERT(). | |
954 | ||
955 | If PcdMaximumAsciiStringLength is not zero, and SearchString or | |
956 | String contains more than PcdMaximumAsciiStringLength Unicode characters | |
957 | not including the Null-terminator, then ASSERT(). | |
958 | ||
959 | @param String Pointer to a Null-terminated ASCII string. | |
960 | @param SearchString Pointer to a Null-terminated ASCII string to search for. | |
961 | ||
962 | @retval NULL If the SearchString does not appear in String. | |
963 | @retval !NULL If there is a match. | |
964 | ||
965 | **/ | |
966 | CHAR8 * | |
967 | EFIAPI | |
968 | AsciiStrStr ( | |
969 | IN CONST CHAR8 *String, | |
970 | IN CONST CHAR8 *SearchString | |
971 | ); | |
972 | ||
973 | ||
974 | /** | |
975 | Convert a Null-terminated ASCII decimal string to a value of type | |
976 | UINTN. | |
977 | ||
978 | This function returns a value of type UINTN by interpreting the contents | |
979 | of the ASCII string String as a decimal number. The format of the input | |
980 | ASCII string String is: | |
981 | ||
982 | [spaces] [decimal digits]. | |
983 | ||
984 | The valid decimal digit character is in the range [0-9]. The function will | |
985 | ignore the pad space, which includes spaces or tab characters, before the digits. | |
986 | The running zero in the beginning of [decimal digits] will be ignored. Then, the | |
987 | function stops at the first character that is a not a valid decimal character or | |
988 | Null-terminator, whichever on comes first. | |
989 | ||
990 | If String has only pad spaces, then 0 is returned. | |
991 | If String has no pad spaces or valid decimal digits, then 0 is returned. | |
992 | If the number represented by String overflows according to the range defined by | |
993 | UINTN, then ASSERT(). | |
994 | If String is NULL, then ASSERT(). | |
995 | If PcdMaximumAsciiStringLength is not zero, and String contains more than | |
996 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, | |
997 | then ASSERT(). | |
998 | ||
999 | @param String Pointer to a Null-terminated ASCII string. | |
1000 | ||
1001 | @retval UINTN | |
1002 | ||
1003 | **/ | |
1004 | UINTN | |
1005 | EFIAPI | |
1006 | AsciiStrDecimalToUintn ( | |
1007 | IN CONST CHAR8 *String | |
1008 | ); | |
1009 | ||
1010 | ||
1011 | /** | |
1012 | Convert a Null-terminated ASCII decimal string to a value of type | |
1013 | UINT64. | |
1014 | ||
1015 | This function returns a value of type UINT64 by interpreting the contents | |
1016 | of the ASCII string String as a decimal number. The format of the input | |
1017 | ASCII string String is: | |
1018 | ||
1019 | [spaces] [decimal digits]. | |
1020 | ||
1021 | The valid decimal digit character is in the range [0-9]. The function will | |
1022 | ignore the pad space, which includes spaces or tab characters, before the digits. | |
1023 | The running zero in the beginning of [decimal digits] will be ignored. Then, the | |
1024 | function stops at the first character that is a not a valid decimal character or | |
1025 | Null-terminator, whichever on comes first. | |
1026 | ||
1027 | If String has only pad spaces, then 0 is returned. | |
1028 | If String has no pad spaces or valid decimal digits, then 0 is returned. | |
1029 | If the number represented by String overflows according to the range defined by | |
1030 | UINT64, then ASSERT(). | |
1031 | If String is NULL, then ASSERT(). | |
1032 | If PcdMaximumAsciiStringLength is not zero, and String contains more than | |
1033 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, | |
1034 | then ASSERT(). | |
1035 | ||
1036 | @param String Pointer to a Null-terminated ASCII string. | |
1037 | ||
1038 | @retval UINT64 | |
1039 | ||
1040 | **/ | |
1041 | UINT64 | |
1042 | EFIAPI | |
1043 | AsciiStrDecimalToUint64 ( | |
1044 | IN CONST CHAR8 *String | |
1045 | ); | |
1046 | ||
1047 | ||
1048 | /** | |
1049 | Convert a Null-terminated ASCII hexadecimal string to a value of type UINTN. | |
1050 | ||
1051 | This function returns a value of type UINTN by interpreting the contents of | |
1052 | the ASCII string String as a hexadecimal number. The format of the input ASCII | |
1053 | string String is: | |
1054 | ||
1055 | [spaces][zeros][x][hexadecimal digits]. | |
1056 | ||
1057 | The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F]. | |
1058 | The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If "x" | |
1059 | appears in the input string, it must be prefixed with at least one 0. The function | |
1060 | will ignore the pad space, which includes spaces or tab characters, before [zeros], | |
1061 | [x] or [hexadecimal digits]. The running zero before [x] or [hexadecimal digits] | |
1062 | will be ignored. Then, the decoding starts after [x] or the first valid hexadecimal | |
1063 | digit. Then, the function stops at the first character that is a not a valid | |
1064 | hexadecimal character or Null-terminator, whichever on comes first. | |
1065 | ||
1066 | If String has only pad spaces, then 0 is returned. | |
1067 | If String has no leading pad spaces, leading zeros or valid hexadecimal digits, then | |
1068 | 0 is returned. | |
1069 | ||
1070 | If the number represented by String overflows according to the range defined by UINTN, | |
1071 | then ASSERT(). | |
1072 | If String is NULL, then ASSERT(). | |
1073 | If PcdMaximumAsciiStringLength is not zero, | |
1074 | and String contains more than PcdMaximumAsciiStringLength ASCII characters not including | |
1075 | the Null-terminator, then ASSERT(). | |
1076 | ||
1077 | @param String Pointer to a Null-terminated ASCII string. | |
1078 | ||
1079 | @retval UINTN | |
1080 | ||
1081 | **/ | |
1082 | UINTN | |
1083 | EFIAPI | |
1084 | AsciiStrHexToUintn ( | |
1085 | IN CONST CHAR8 *String | |
1086 | ); | |
1087 | ||
1088 | ||
1089 | /** | |
1090 | Convert a Null-terminated ASCII hexadecimal string to a value of type UINT64. | |
1091 | ||
1092 | This function returns a value of type UINT64 by interpreting the contents of | |
1093 | the ASCII string String as a hexadecimal number. The format of the input ASCII | |
1094 | string String is: | |
1095 | ||
1096 | [spaces][zeros][x][hexadecimal digits]. | |
1097 | ||
1098 | The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F]. | |
1099 | The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If "x" | |
1100 | appears in the input string, it must be prefixed with at least one 0. The function | |
1101 | will ignore the pad space, which includes spaces or tab characters, before [zeros], | |
1102 | [x] or [hexadecimal digits]. The running zero before [x] or [hexadecimal digits] | |
1103 | will be ignored. Then, the decoding starts after [x] or the first valid hexadecimal | |
1104 | digit. Then, the function stops at the first character that is a not a valid | |
1105 | hexadecimal character or Null-terminator, whichever on comes first. | |
1106 | ||
1107 | If String has only pad spaces, then 0 is returned. | |
1108 | If String has no leading pad spaces, leading zeros or valid hexadecimal digits, then | |
1109 | 0 is returned. | |
1110 | ||
1111 | If the number represented by String overflows according to the range defined by UINT64, | |
1112 | then ASSERT(). | |
1113 | If String is NULL, then ASSERT(). | |
1114 | If PcdMaximumAsciiStringLength is not zero, | |
1115 | and String contains more than PcdMaximumAsciiStringLength ASCII characters not including | |
1116 | the Null-terminator, then ASSERT(). | |
1117 | ||
1118 | @param String Pointer to a Null-terminated ASCII string. | |
1119 | ||
1120 | @retval UINT64 | |
1121 | ||
1122 | **/ | |
1123 | UINT64 | |
1124 | EFIAPI | |
1125 | AsciiStrHexToUint64 ( | |
1126 | IN CONST CHAR8 *String | |
1127 | ); | |
1128 | ||
1129 | ||
1130 | /** | |
1131 | Convert one Null-terminated ASCII string to a Null-terminated | |
1132 | Unicode string and returns the Unicode string. | |
1133 | ||
1134 | This function converts the contents of the ASCII string Source to the Unicode | |
1135 | string Destination, and returns Destination. The function terminates the | |
1136 | Unicode string Destination by appending a Null-terminator character at the end. | |
1137 | The caller is responsible to make sure Destination points to a buffer with size | |
1138 | equal or greater than ((AsciiStrLen (Source) + 1) * sizeof (CHAR16)) in bytes. | |
1139 | ||
1140 | If Destination is NULL, then ASSERT(). | |
1141 | If Destination is not aligned on a 16-bit boundary, then ASSERT(). | |
1142 | If Source is NULL, then ASSERT(). | |
1143 | If Source and Destination overlap, then ASSERT(). | |
1144 | If PcdMaximumAsciiStringLength is not zero, and Source contains more than | |
1145 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, | |
1146 | then ASSERT(). | |
1147 | If PcdMaximumUnicodeStringLength is not zero, and Source contains more than | |
1148 | PcdMaximumUnicodeStringLength ASCII characters not including the | |
1149 | Null-terminator, then ASSERT(). | |
1150 | ||
1151 | @param Source Pointer to a Null-terminated ASCII string. | |
1152 | @param Destination Pointer to a Null-terminated Unicode string. | |
1153 | ||
1154 | @reture Destination | |
1155 | ||
1156 | **/ | |
1157 | CHAR16 * | |
1158 | EFIAPI | |
1159 | AsciiStrToUnicodeStr ( | |
1160 | IN CONST CHAR8 *Source, | |
1161 | OUT CHAR16 *Destination | |
1162 | ); | |
1163 | ||
1164 | ||
1165 | /** | |
1166 | Converts an 8-bit value to an 8-bit BCD value. | |
1167 | ||
1168 | Converts the 8-bit value specified by Value to BCD. The BCD value is | |
1169 | returned. | |
1170 | ||
1171 | If Value >= 100, then ASSERT(). | |
1172 | ||
1173 | @param Value The 8-bit value to convert to BCD. Range 0..99. | |
1174 | ||
1175 | @return The BCD value | |
1176 | ||
1177 | **/ | |
1178 | UINT8 | |
1179 | EFIAPI | |
1180 | DecimalToBcd8 ( | |
1181 | IN UINT8 Value | |
1182 | ); | |
1183 | ||
1184 | ||
1185 | /** | |
1186 | Converts an 8-bit BCD value to an 8-bit value. | |
1187 | ||
1188 | Converts the 8-bit BCD value specified by Value to an 8-bit value. The 8-bit | |
1189 | value is returned. | |
1190 | ||
1191 | If Value >= 0xA0, then ASSERT(). | |
1192 | If (Value & 0x0F) >= 0x0A, then ASSERT(). | |
1193 | ||
1194 | @param Value The 8-bit BCD value to convert to an 8-bit value. | |
1195 | ||
1196 | @return The 8-bit value is returned. | |
1197 | ||
1198 | **/ | |
1199 | UINT8 | |
1200 | EFIAPI | |
1201 | BcdToDecimal8 ( | |
1202 | IN UINT8 Value | |
1203 | ); | |
1204 | ||
1205 | ||
1206 | // | |
1207 | // Linked List Functions and Macros | |
1208 | // | |
1209 | ||
1210 | /** | |
1211 | Initializes the head node of a doubly linked list that is declared as a | |
1212 | global variable in a module. | |
1213 | ||
1214 | Initializes the forward and backward links of a new linked list. After | |
1215 | initializing a linked list with this macro, the other linked list functions | |
1216 | may be used to add and remove nodes from the linked list. This macro results | |
1217 | in smaller executables by initializing the linked list in the data section, | |
1218 | instead if calling the InitializeListHead() function to perform the | |
1219 | equivalent operation. | |
1220 | ||
1221 | @param ListHead The head note of a list to initiailize. | |
1222 | ||
1223 | **/ | |
1224 | #define INITIALIZE_LIST_HEAD_VARIABLE(ListHead) {&ListHead, &ListHead} | |
1225 | ||
1226 | ||
1227 | /** | |
1228 | Initializes the head node of a doubly linked list, and returns the pointer to | |
1229 | the head node of the doubly linked list. | |
1230 | ||
1231 | Initializes the forward and backward links of a new linked list. After | |
1232 | initializing a linked list with this function, the other linked list | |
1233 | functions may be used to add and remove nodes from the linked list. It is up | |
1234 | to the caller of this function to allocate the memory for ListHead. | |
1235 | ||
1236 | If ListHead is NULL, then ASSERT(). | |
1237 | ||
1238 | @param ListHead A pointer to the head node of a new doubly linked list. | |
1239 | ||
1240 | @return ListHead | |
1241 | ||
1242 | **/ | |
1243 | LIST_ENTRY * | |
1244 | EFIAPI | |
1245 | InitializeListHead ( | |
1246 | IN LIST_ENTRY *ListHead | |
1247 | ); | |
1248 | ||
1249 | ||
1250 | /** | |
1251 | Adds a node to the beginning of a doubly linked list, and returns the pointer | |
1252 | to the head node of the doubly linked list. | |
1253 | ||
1254 | Adds the node Entry at the beginning of the doubly linked list denoted by | |
1255 | ListHead, and returns ListHead. | |
1256 | ||
1257 | If ListHead is NULL, then ASSERT(). | |
1258 | If Entry is NULL, then ASSERT(). | |
1259 | If ListHead was not initialized with InitializeListHead(), then ASSERT(). | |
1260 | If PcdMaximumLinkedListLenth is not zero, and prior to insertion the number | |
1261 | of nodes in ListHead, including the ListHead node, is greater than or | |
1262 | equal to PcdMaximumLinkedListLength, then ASSERT(). | |
1263 | ||
1264 | @param ListHead A pointer to the head node of a doubly linked list. | |
1265 | @param Entry A pointer to a node that is to be inserted at the beginning | |
1266 | of a doubly linked list. | |
1267 | ||
1268 | @return ListHead | |
1269 | ||
1270 | **/ | |
1271 | LIST_ENTRY * | |
1272 | EFIAPI | |
1273 | InsertHeadList ( | |
1274 | IN LIST_ENTRY *ListHead, | |
1275 | IN LIST_ENTRY *Entry | |
1276 | ); | |
1277 | ||
1278 | ||
1279 | /** | |
1280 | Adds a node to the end of a doubly linked list, and returns the pointer to | |
1281 | the head node of the doubly linked list. | |
1282 | ||
1283 | Adds the node Entry to the end of the doubly linked list denoted by ListHead, | |
1284 | and returns ListHead. | |
1285 | ||
1286 | If ListHead is NULL, then ASSERT(). | |
1287 | If Entry is NULL, then ASSERT(). | |
1288 | If ListHead was not initialized with InitializeListHead(), then ASSERT(). | |
1289 | If PcdMaximumLinkedListLenth is not zero, and prior to insertion the number | |
1290 | of nodes in ListHead, including the ListHead node, is greater than or | |
1291 | equal to PcdMaximumLinkedListLength, then ASSERT(). | |
1292 | ||
1293 | @param ListHead A pointer to the head node of a doubly linked list. | |
1294 | @param Entry A pointer to a node that is to be added at the end of the | |
1295 | doubly linked list. | |
1296 | ||
1297 | @return ListHead | |
1298 | ||
1299 | **/ | |
1300 | LIST_ENTRY * | |
1301 | EFIAPI | |
1302 | InsertTailList ( | |
1303 | IN LIST_ENTRY *ListHead, | |
1304 | IN LIST_ENTRY *Entry | |
1305 | ); | |
1306 | ||
1307 | ||
1308 | /** | |
1309 | Retrieves the first node of a doubly linked list. | |
1310 | ||
1311 | Returns the first node of a doubly linked list. List must have been | |
1312 | initialized with InitializeListHead(). If List is empty, then NULL is | |
1313 | returned. | |
1314 | ||
1315 | If List is NULL, then ASSERT(). | |
1316 | If List was not initialized with InitializeListHead(), then ASSERT(). | |
1317 | If PcdMaximumLinkedListLenth is not zero, and the number of nodes | |
1318 | in List, including the List node, is greater than or equal to | |
1319 | PcdMaximumLinkedListLength, then ASSERT(). | |
1320 | ||
1321 | @param List A pointer to the head node of a doubly linked list. | |
1322 | ||
1323 | @return The first node of a doubly linked list. | |
1324 | @retval NULL The list is empty. | |
1325 | ||
1326 | **/ | |
1327 | LIST_ENTRY * | |
1328 | EFIAPI | |
1329 | GetFirstNode ( | |
1330 | IN CONST LIST_ENTRY *List | |
1331 | ); | |
1332 | ||
1333 | ||
1334 | /** | |
1335 | Retrieves the next node of a doubly linked list. | |
1336 | ||
1337 | Returns the node of a doubly linked list that follows Node. List must have | |
1338 | been initialized with InitializeListHead(). If List is empty, then List is | |
1339 | returned. | |
1340 | ||
1341 | If List is NULL, then ASSERT(). | |
1342 | If Node is NULL, then ASSERT(). | |
1343 | If List was not initialized with InitializeListHead(), then ASSERT(). | |
1344 | If PcdMaximumLinkedListLenth is not zero, and List contains more than | |
1345 | PcdMaximumLinkedListLenth nodes, then ASSERT(). | |
1346 | If Node is not a node in List, then ASSERT(). | |
1347 | ||
1348 | @param List A pointer to the head node of a doubly linked list. | |
1349 | @param Node A pointer to a node in the doubly linked list. | |
1350 | ||
1351 | @return Pointer to the next node if one exists. Otherwise a null value which | |
1352 | is actually List is returned. | |
1353 | ||
1354 | **/ | |
1355 | LIST_ENTRY * | |
1356 | EFIAPI | |
1357 | GetNextNode ( | |
1358 | IN CONST LIST_ENTRY *List, | |
1359 | IN CONST LIST_ENTRY *Node | |
1360 | ); | |
1361 | ||
1362 | ||
1363 | /** | |
1364 | Checks to see if a doubly linked list is empty or not. | |
1365 | ||
1366 | Checks to see if the doubly linked list is empty. If the linked list contains | |
1367 | zero nodes, this function returns TRUE. Otherwise, it returns FALSE. | |
1368 | ||
1369 | If ListHead is NULL, then ASSERT(). | |
1370 | If ListHead was not initialized with InitializeListHead(), then ASSERT(). | |
1371 | If PcdMaximumLinkedListLenth is not zero, and the number of nodes | |
1372 | in List, including the List node, is greater than or equal to | |
1373 | PcdMaximumLinkedListLength, then ASSERT(). | |
1374 | ||
1375 | @param ListHead A pointer to the head node of a doubly linked list. | |
1376 | ||
1377 | @retval TRUE The linked list is empty. | |
1378 | @retval FALSE The linked list is not empty. | |
1379 | ||
1380 | **/ | |
1381 | BOOLEAN | |
1382 | EFIAPI | |
1383 | IsListEmpty ( | |
1384 | IN CONST LIST_ENTRY *ListHead | |
1385 | ); | |
1386 | ||
1387 | ||
1388 | /** | |
1389 | Determines if a node in a doubly linked list is null. | |
1390 | ||
1391 | Returns FALSE if Node is one of the nodes in the doubly linked list specified | |
1392 | by List. Otherwise, TRUE is returned. List must have been initialized with | |
1393 | InitializeListHead(). | |
1394 | ||
1395 | If List is NULL, then ASSERT(). | |
1396 | If Node is NULL, then ASSERT(). | |
1397 | If List was not initialized with InitializeListHead(), then ASSERT(). | |
1398 | If PcdMaximumLinkedListLenth is not zero, and the number of nodes | |
1399 | in List, including the List node, is greater than or equal to | |
1400 | PcdMaximumLinkedListLength, then ASSERT(). | |
1401 | If Node is not a node in List and Node is not equal to List, then ASSERT(). | |
1402 | ||
1403 | @param List A pointer to the head node of a doubly linked list. | |
1404 | @param Node A pointer to a node in the doubly linked list. | |
1405 | ||
1406 | @retval TRUE Node is one of the nodes in the doubly linked list. | |
1407 | @retval FALSE Node is not one of the nodes in the doubly linked list. | |
1408 | ||
1409 | **/ | |
1410 | BOOLEAN | |
1411 | EFIAPI | |
1412 | IsNull ( | |
1413 | IN CONST LIST_ENTRY *List, | |
1414 | IN CONST LIST_ENTRY *Node | |
1415 | ); | |
1416 | ||
1417 | ||
1418 | /** | |
1419 | Determines if a node the last node in a doubly linked list. | |
1420 | ||
1421 | Returns TRUE if Node is the last node in the doubly linked list specified by | |
1422 | List. Otherwise, FALSE is returned. List must have been initialized with | |
1423 | InitializeListHead(). | |
1424 | ||
1425 | If List is NULL, then ASSERT(). | |
1426 | If Node is NULL, then ASSERT(). | |
1427 | If List was not initialized with InitializeListHead(), then ASSERT(). | |
1428 | If PcdMaximumLinkedListLenth is not zero, and the number of nodes | |
1429 | in List, including the List node, is greater than or equal to | |
1430 | PcdMaximumLinkedListLength, then ASSERT(). | |
1431 | If Node is not a node in List, then ASSERT(). | |
1432 | ||
1433 | @param List A pointer to the head node of a doubly linked list. | |
1434 | @param Node A pointer to a node in the doubly linked list. | |
1435 | ||
1436 | @retval TRUE Node is the last node in the linked list. | |
1437 | @retval FALSE Node is not the last node in the linked list. | |
1438 | ||
1439 | **/ | |
1440 | BOOLEAN | |
1441 | EFIAPI | |
1442 | IsNodeAtEnd ( | |
1443 | IN CONST LIST_ENTRY *List, | |
1444 | IN CONST LIST_ENTRY *Node | |
1445 | ); | |
1446 | ||
1447 | ||
1448 | /** | |
1449 | Swaps the location of two nodes in a doubly linked list, and returns the | |
1450 | first node after the swap. | |
1451 | ||
1452 | If FirstEntry is identical to SecondEntry, then SecondEntry is returned. | |
1453 | Otherwise, the location of the FirstEntry node is swapped with the location | |
1454 | of the SecondEntry node in a doubly linked list. SecondEntry must be in the | |
1455 | same double linked list as FirstEntry and that double linked list must have | |
1456 | been initialized with InitializeListHead(). SecondEntry is returned after the | |
1457 | nodes are swapped. | |
1458 | ||
1459 | If FirstEntry is NULL, then ASSERT(). | |
1460 | If SecondEntry is NULL, then ASSERT(). | |
1461 | If SecondEntry and FirstEntry are not in the same linked list, then ASSERT(). | |
1462 | If PcdMaximumLinkedListLength is not zero, and the number of nodes in the | |
1463 | linked list containing the FirstEntry and SecondEntry nodes, including | |
1464 | the FirstEntry and SecondEntry nodes, is greater than or equal to | |
1465 | PcdMaximumLinkedListLength, then ASSERT(). | |
1466 | ||
1467 | @param FirstEntry A pointer to a node in a linked list. | |
1468 | @param SecondEntry A pointer to another node in the same linked list. | |
1469 | ||
1470 | **/ | |
1471 | LIST_ENTRY * | |
1472 | EFIAPI | |
1473 | SwapListEntries ( | |
1474 | IN LIST_ENTRY *FirstEntry, | |
1475 | IN LIST_ENTRY *SecondEntry | |
1476 | ); | |
1477 | ||
1478 | ||
1479 | /** | |
1480 | Removes a node from a doubly linked list, and returns the node that follows | |
1481 | the removed node. | |
1482 | ||
1483 | Removes the node Entry from a doubly linked list. It is up to the caller of | |
1484 | this function to release the memory used by this node if that is required. On | |
1485 | exit, the node following Entry in the doubly linked list is returned. If | |
1486 | Entry is the only node in the linked list, then the head node of the linked | |
1487 | list is returned. | |
1488 | ||
1489 | If Entry is NULL, then ASSERT(). | |
1490 | If Entry is the head node of an empty list, then ASSERT(). | |
1491 | If PcdMaximumLinkedListLength is not zero, and the number of nodes in the | |
1492 | linked list containing Entry, including the Entry node, is greater than | |
1493 | or equal to PcdMaximumLinkedListLength, then ASSERT(). | |
1494 | ||
1495 | @param Entry A pointer to a node in a linked list | |
1496 | ||
1497 | @return Entry | |
1498 | ||
1499 | **/ | |
1500 | LIST_ENTRY * | |
1501 | EFIAPI | |
1502 | RemoveEntryList ( | |
1503 | IN CONST LIST_ENTRY *Entry | |
1504 | ); | |
1505 | ||
1506 | // | |
1507 | // Math Services | |
1508 | // | |
1509 | ||
1510 | /** | |
1511 | Shifts a 64-bit integer left between 0 and 63 bits. The low bits are filled | |
1512 | with zeros. The shifted value is returned. | |
1513 | ||
1514 | This function shifts the 64-bit value Operand to the left by Count bits. The | |
1515 | low Count bits are set to zero. The shifted value is returned. | |
1516 | ||
1517 | If Count is greater than 63, then ASSERT(). | |
1518 | ||
1519 | @param Operand The 64-bit operand to shift left. | |
1520 | @param Count The number of bits to shift left. | |
1521 | ||
1522 | @return Operand << Count | |
1523 | ||
1524 | **/ | |
1525 | UINT64 | |
1526 | EFIAPI | |
1527 | LShiftU64 ( | |
1528 | IN UINT64 Operand, | |
1529 | IN UINTN Count | |
1530 | ); | |
1531 | ||
1532 | ||
1533 | /** | |
1534 | Shifts a 64-bit integer right between 0 and 63 bits. This high bits are | |
1535 | filled with zeros. The shifted value is returned. | |
1536 | ||
1537 | This function shifts the 64-bit value Operand to the right by Count bits. The | |
1538 | high Count bits are set to zero. The shifted value is returned. | |
1539 | ||
1540 | If Count is greater than 63, then ASSERT(). | |
1541 | ||
1542 | @param Operand The 64-bit operand to shift right. | |
1543 | @param Count The number of bits to shift right. | |
1544 | ||
1545 | @return Operand >> Count | |
1546 | ||
1547 | **/ | |
1548 | UINT64 | |
1549 | EFIAPI | |
1550 | RShiftU64 ( | |
1551 | IN UINT64 Operand, | |
1552 | IN UINTN Count | |
1553 | ); | |
1554 | ||
1555 | ||
1556 | /** | |
1557 | Shifts a 64-bit integer right between 0 and 63 bits. The high bits are filled | |
1558 | with original integer's bit 63. The shifted value is returned. | |
1559 | ||
1560 | This function shifts the 64-bit value Operand to the right by Count bits. The | |
1561 | high Count bits are set to bit 63 of Operand. The shifted value is returned. | |
1562 | ||
1563 | If Count is greater than 63, then ASSERT(). | |
1564 | ||
1565 | @param Operand The 64-bit operand to shift right. | |
1566 | @param Count The number of bits to shift right. | |
1567 | ||
1568 | @return Operand >> Count | |
1569 | ||
1570 | **/ | |
1571 | UINT64 | |
1572 | EFIAPI | |
1573 | ARShiftU64 ( | |
1574 | IN UINT64 Operand, | |
1575 | IN UINTN Count | |
1576 | ); | |
1577 | ||
1578 | ||
1579 | /** | |
1580 | Rotates a 32-bit integer left between 0 and 31 bits, filling the low bits | |
1581 | with the high bits that were rotated. | |
1582 | ||
1583 | This function rotates the 32-bit value Operand to the left by Count bits. The | |
1584 | low Count bits are fill with the high Count bits of Operand. The rotated | |
1585 | value is returned. | |
1586 | ||
1587 | If Count is greater than 31, then ASSERT(). | |
1588 | ||
1589 | @param Operand The 32-bit operand to rotate left. | |
1590 | @param Count The number of bits to rotate left. | |
1591 | ||
1592 | @return Operand <<< Count | |
1593 | ||
1594 | **/ | |
1595 | UINT32 | |
1596 | EFIAPI | |
1597 | LRotU32 ( | |
1598 | IN UINT32 Operand, | |
1599 | IN UINTN Count | |
1600 | ); | |
1601 | ||
1602 | ||
1603 | /** | |
1604 | Rotates a 32-bit integer right between 0 and 31 bits, filling the high bits | |
1605 | with the low bits that were rotated. | |
1606 | ||
1607 | This function rotates the 32-bit value Operand to the right by Count bits. | |
1608 | The high Count bits are fill with the low Count bits of Operand. The rotated | |
1609 | value is returned. | |
1610 | ||
1611 | If Count is greater than 31, then ASSERT(). | |
1612 | ||
1613 | @param Operand The 32-bit operand to rotate right. | |
1614 | @param Count The number of bits to rotate right. | |
1615 | ||
1616 | @return Operand >>> Count | |
1617 | ||
1618 | **/ | |
1619 | UINT32 | |
1620 | EFIAPI | |
1621 | RRotU32 ( | |
1622 | IN UINT32 Operand, | |
1623 | IN UINTN Count | |
1624 | ); | |
1625 | ||
1626 | ||
1627 | /** | |
1628 | Rotates a 64-bit integer left between 0 and 63 bits, filling the low bits | |
1629 | with the high bits that were rotated. | |
1630 | ||
1631 | This function rotates the 64-bit value Operand to the left by Count bits. The | |
1632 | low Count bits are fill with the high Count bits of Operand. The rotated | |
1633 | value is returned. | |
1634 | ||
1635 | If Count is greater than 63, then ASSERT(). | |
1636 | ||
1637 | @param Operand The 64-bit operand to rotate left. | |
1638 | @param Count The number of bits to rotate left. | |
1639 | ||
1640 | @return Operand <<< Count | |
1641 | ||
1642 | **/ | |
1643 | UINT64 | |
1644 | EFIAPI | |
1645 | LRotU64 ( | |
1646 | IN UINT64 Operand, | |
1647 | IN UINTN Count | |
1648 | ); | |
1649 | ||
1650 | ||
1651 | /** | |
1652 | Rotates a 64-bit integer right between 0 and 63 bits, filling the high bits | |
1653 | with the high low bits that were rotated. | |
1654 | ||
1655 | This function rotates the 64-bit value Operand to the right by Count bits. | |
1656 | The high Count bits are fill with the low Count bits of Operand. The rotated | |
1657 | value is returned. | |
1658 | ||
1659 | If Count is greater than 63, then ASSERT(). | |
1660 | ||
1661 | @param Operand The 64-bit operand to rotate right. | |
1662 | @param Count The number of bits to rotate right. | |
1663 | ||
1664 | @return Operand >>> Count | |
1665 | ||
1666 | **/ | |
1667 | UINT64 | |
1668 | EFIAPI | |
1669 | RRotU64 ( | |
1670 | IN UINT64 Operand, | |
1671 | IN UINTN Count | |
1672 | ); | |
1673 | ||
1674 | ||
1675 | /** | |
1676 | Returns the bit position of the lowest bit set in a 32-bit value. | |
1677 | ||
1678 | This function computes the bit position of the lowest bit set in the 32-bit | |
1679 | value specified by Operand. If Operand is zero, then -1 is returned. | |
1680 | Otherwise, a value between 0 and 31 is returned. | |
1681 | ||
1682 | @param Operand The 32-bit operand to evaluate. | |
1683 | ||
1684 | @return Position of the lowest bit set in Operand if found. | |
1685 | @retval -1 Operand is zero. | |
1686 | ||
1687 | **/ | |
1688 | INTN | |
1689 | EFIAPI | |
1690 | LowBitSet32 ( | |
1691 | IN UINT32 Operand | |
1692 | ); | |
1693 | ||
1694 | ||
1695 | /** | |
1696 | Returns the bit position of the lowest bit set in a 64-bit value. | |
1697 | ||
1698 | This function computes the bit position of the lowest bit set in the 64-bit | |
1699 | value specified by Operand. If Operand is zero, then -1 is returned. | |
1700 | Otherwise, a value between 0 and 63 is returned. | |
1701 | ||
1702 | @param Operand The 64-bit operand to evaluate. | |
1703 | ||
1704 | @return Position of the lowest bit set in Operand if found. | |
1705 | @retval -1 Operand is zero. | |
1706 | ||
1707 | **/ | |
1708 | INTN | |
1709 | EFIAPI | |
1710 | LowBitSet64 ( | |
1711 | IN UINT64 Operand | |
1712 | ); | |
1713 | ||
1714 | ||
1715 | /** | |
1716 | Returns the bit position of the highest bit set in a 32-bit value. Equivalent | |
1717 | to log2(x). | |
1718 | ||
1719 | This function computes the bit position of the highest bit set in the 32-bit | |
1720 | value specified by Operand. If Operand is zero, then -1 is returned. | |
1721 | Otherwise, a value between 0 and 31 is returned. | |
1722 | ||
1723 | @param Operand The 32-bit operand to evaluate. | |
1724 | ||
1725 | @return Position of the highest bit set in Operand if found. | |
1726 | @retval -1 Operand is zero. | |
1727 | ||
1728 | **/ | |
1729 | INTN | |
1730 | EFIAPI | |
1731 | HighBitSet32 ( | |
1732 | IN UINT32 Operand | |
1733 | ); | |
1734 | ||
1735 | ||
1736 | /** | |
1737 | Returns the bit position of the highest bit set in a 64-bit value. Equivalent | |
1738 | to log2(x). | |
1739 | ||
1740 | This function computes the bit position of the highest bit set in the 64-bit | |
1741 | value specified by Operand. If Operand is zero, then -1 is returned. | |
1742 | Otherwise, a value between 0 and 63 is returned. | |
1743 | ||
1744 | @param Operand The 64-bit operand to evaluate. | |
1745 | ||
1746 | @return Position of the highest bit set in Operand if found. | |
1747 | @retval -1 Operand is zero. | |
1748 | ||
1749 | **/ | |
1750 | INTN | |
1751 | EFIAPI | |
1752 | HighBitSet64 ( | |
1753 | IN UINT64 Operand | |
1754 | ); | |
1755 | ||
1756 | ||
1757 | /** | |
1758 | Returns the value of the highest bit set in a 32-bit value. Equivalent to | |
1759 | 1 << HighBitSet32(x). | |
1760 | ||
1761 | This function computes the value of the highest bit set in the 32-bit value | |
1762 | specified by Operand. If Operand is zero, then zero is returned. | |
1763 | ||
1764 | @param Operand The 32-bit operand to evaluate. | |
1765 | ||
1766 | @return 1 << HighBitSet32(Operand) | |
1767 | @retval 0 Operand is zero. | |
1768 | ||
1769 | **/ | |
1770 | UINT32 | |
1771 | EFIAPI | |
1772 | GetPowerOfTwo32 ( | |
1773 | IN UINT32 Operand | |
1774 | ); | |
1775 | ||
1776 | ||
1777 | /** | |
1778 | Returns the value of the highest bit set in a 64-bit value. Equivalent to | |
1779 | 1 << HighBitSet64(x). | |
1780 | ||
1781 | This function computes the value of the highest bit set in the 64-bit value | |
1782 | specified by Operand. If Operand is zero, then zero is returned. | |
1783 | ||
1784 | @param Operand The 64-bit operand to evaluate. | |
1785 | ||
1786 | @return 1 << HighBitSet64(Operand) | |
1787 | @retval 0 Operand is zero. | |
1788 | ||
1789 | **/ | |
1790 | UINT64 | |
1791 | EFIAPI | |
1792 | GetPowerOfTwo64 ( | |
1793 | IN UINT64 Operand | |
1794 | ); | |
1795 | ||
1796 | ||
1797 | /** | |
1798 | Switches the endianess of a 16-bit integer. | |
1799 | ||
1800 | This function swaps the bytes in a 16-bit unsigned value to switch the value | |
1801 | from little endian to big endian or vice versa. The byte swapped value is | |
1802 | returned. | |
1803 | ||
1804 | @param Operand A 16-bit unsigned value. | |
1805 | ||
1806 | @return The byte swaped Operand. | |
1807 | ||
1808 | **/ | |
1809 | UINT16 | |
1810 | EFIAPI | |
1811 | SwapBytes16 ( | |
1812 | IN UINT16 Value | |
1813 | ); | |
1814 | ||
1815 | ||
1816 | /** | |
1817 | Switches the endianess of a 32-bit integer. | |
1818 | ||
1819 | This function swaps the bytes in a 32-bit unsigned value to switch the value | |
1820 | from little endian to big endian or vice versa. The byte swapped value is | |
1821 | returned. | |
1822 | ||
1823 | @param Operand A 32-bit unsigned value. | |
1824 | ||
1825 | @return The byte swaped Operand. | |
1826 | ||
1827 | **/ | |
1828 | UINT32 | |
1829 | EFIAPI | |
1830 | SwapBytes32 ( | |
1831 | IN UINT32 Value | |
1832 | ); | |
1833 | ||
1834 | ||
1835 | /** | |
1836 | Switches the endianess of a 64-bit integer. | |
1837 | ||
1838 | This function swaps the bytes in a 64-bit unsigned value to switch the value | |
1839 | from little endian to big endian or vice versa. The byte swapped value is | |
1840 | returned. | |
1841 | ||
1842 | @param Operand A 64-bit unsigned value. | |
1843 | ||
1844 | @return The byte swaped Operand. | |
1845 | ||
1846 | **/ | |
1847 | UINT64 | |
1848 | EFIAPI | |
1849 | SwapBytes64 ( | |
1850 | IN UINT64 Value | |
1851 | ); | |
1852 | ||
1853 | ||
1854 | /** | |
1855 | Multiples a 64-bit unsigned integer by a 32-bit unsigned integer and | |
1856 | generates a 64-bit unsigned result. | |
1857 | ||
1858 | This function multiples the 64-bit unsigned value Multiplicand by the 32-bit | |
1859 | unsigned value Multiplier and generates a 64-bit unsigned result. This 64- | |
1860 | bit unsigned result is returned. | |
1861 | ||
1862 | If the result overflows, then ASSERT(). | |
1863 | ||
1864 | @param Multiplicand A 64-bit unsigned value. | |
1865 | @param Multiplier A 32-bit unsigned value. | |
1866 | ||
1867 | @return Multiplicand * Multiplier | |
1868 | ||
1869 | **/ | |
1870 | UINT64 | |
1871 | EFIAPI | |
1872 | MultU64x32 ( | |
1873 | IN UINT64 Multiplicand, | |
1874 | IN UINT32 Multiplier | |
1875 | ); | |
1876 | ||
1877 | ||
1878 | /** | |
1879 | Multiples a 64-bit unsigned integer by a 64-bit unsigned integer and | |
1880 | generates a 64-bit unsigned result. | |
1881 | ||
1882 | This function multiples the 64-bit unsigned value Multiplicand by the 64-bit | |
1883 | unsigned value Multiplier and generates a 64-bit unsigned result. This 64- | |
1884 | bit unsigned result is returned. | |
1885 | ||
1886 | If the result overflows, then ASSERT(). | |
1887 | ||
1888 | @param Multiplicand A 64-bit unsigned value. | |
1889 | @param Multiplier A 64-bit unsigned value. | |
1890 | ||
1891 | @return Multiplicand * Multiplier | |
1892 | ||
1893 | **/ | |
1894 | UINT64 | |
1895 | EFIAPI | |
1896 | MultU64x64 ( | |
1897 | IN UINT64 Multiplicand, | |
1898 | IN UINT64 Multiplier | |
1899 | ); | |
1900 | ||
1901 | ||
1902 | /** | |
1903 | Multiples a 64-bit signed integer by a 64-bit signed integer and generates a | |
1904 | 64-bit signed result. | |
1905 | ||
1906 | This function multiples the 64-bit signed value Multiplicand by the 64-bit | |
1907 | signed value Multiplier and generates a 64-bit signed result. This 64-bit | |
1908 | signed result is returned. | |
1909 | ||
1910 | If the result overflows, then ASSERT(). | |
1911 | ||
1912 | @param Multiplicand A 64-bit signed value. | |
1913 | @param Multiplier A 64-bit signed value. | |
1914 | ||
1915 | @return Multiplicand * Multiplier | |
1916 | ||
1917 | **/ | |
1918 | INT64 | |
1919 | EFIAPI | |
1920 | MultS64x64 ( | |
1921 | IN INT64 Multiplicand, | |
1922 | IN INT64 Multiplier | |
1923 | ); | |
1924 | ||
1925 | ||
1926 | /** | |
1927 | Divides a 64-bit unsigned integer by a 32-bit unsigned integer and generates | |
1928 | a 64-bit unsigned result. | |
1929 | ||
1930 | This function divides the 64-bit unsigned value Dividend by the 32-bit | |
1931 | unsigned value Divisor and generates a 64-bit unsigned quotient. This | |
1932 | function returns the 64-bit unsigned quotient. | |
1933 | ||
1934 | If Divisor is 0, then ASSERT(). | |
1935 | ||
1936 | @param Dividend A 64-bit unsigned value. | |
1937 | @param Divisor A 32-bit unsigned value. | |
1938 | ||
1939 | @return Dividend / Divisor | |
1940 | ||
1941 | **/ | |
1942 | UINT64 | |
1943 | EFIAPI | |
1944 | DivU64x32 ( | |
1945 | IN UINT64 Dividend, | |
1946 | IN UINT32 Divisor | |
1947 | ); | |
1948 | ||
1949 | ||
1950 | /** | |
1951 | Divides a 64-bit unsigned integer by a 32-bit unsigned integer and generates | |
1952 | a 32-bit unsigned remainder. | |
1953 | ||
1954 | This function divides the 64-bit unsigned value Dividend by the 32-bit | |
1955 | unsigned value Divisor and generates a 32-bit remainder. This function | |
1956 | returns the 32-bit unsigned remainder. | |
1957 | ||
1958 | If Divisor is 0, then ASSERT(). | |
1959 | ||
1960 | @param Dividend A 64-bit unsigned value. | |
1961 | @param Divisor A 32-bit unsigned value. | |
1962 | ||
1963 | @return Dividend % Divisor | |
1964 | ||
1965 | **/ | |
1966 | UINT32 | |
1967 | EFIAPI | |
1968 | ModU64x32 ( | |
1969 | IN UINT64 Dividend, | |
1970 | IN UINT32 Divisor | |
1971 | ); | |
1972 | ||
1973 | ||
1974 | /** | |
1975 | Divides a 64-bit unsigned integer by a 32-bit unsigned integer and generates | |
1976 | a 64-bit unsigned result and an optional 32-bit unsigned remainder. | |
1977 | ||
1978 | This function divides the 64-bit unsigned value Dividend by the 32-bit | |
1979 | unsigned value Divisor and generates a 64-bit unsigned quotient. If Remainder | |
1980 | is not NULL, then the 32-bit unsigned remainder is returned in Remainder. | |
1981 | This function returns the 64-bit unsigned quotient. | |
1982 | ||
1983 | If Divisor is 0, then ASSERT(). | |
1984 | ||
1985 | @param Dividend A 64-bit unsigned value. | |
1986 | @param Divisor A 32-bit unsigned value. | |
1987 | @param Remainder A pointer to a 32-bit unsigned value. This parameter is | |
1988 | optional and may be NULL. | |
1989 | ||
1990 | @return Dividend / Divisor | |
1991 | ||
1992 | **/ | |
1993 | UINT64 | |
1994 | EFIAPI | |
1995 | DivU64x32Remainder ( | |
1996 | IN UINT64 Dividend, | |
1997 | IN UINT32 Divisor, | |
1998 | OUT UINT32 *Remainder OPTIONAL | |
1999 | ); | |
2000 | ||
2001 | ||
2002 | /** | |
2003 | Divides a 64-bit unsigned integer by a 64-bit unsigned integer and generates | |
2004 | a 64-bit unsigned result and an optional 64-bit unsigned remainder. | |
2005 | ||
2006 | This function divides the 64-bit unsigned value Dividend by the 64-bit | |
2007 | unsigned value Divisor and generates a 64-bit unsigned quotient. If Remainder | |
2008 | is not NULL, then the 64-bit unsigned remainder is returned in Remainder. | |
2009 | This function returns the 64-bit unsigned quotient. | |
2010 | ||
2011 | If Divisor is 0, then ASSERT(). | |
2012 | ||
2013 | @param Dividend A 64-bit unsigned value. | |
2014 | @param Divisor A 64-bit unsigned value. | |
2015 | @param Remainder A pointer to a 64-bit unsigned value. This parameter is | |
2016 | optional and may be NULL. | |
2017 | ||
2018 | @return Dividend / Divisor | |
2019 | ||
2020 | **/ | |
2021 | UINT64 | |
2022 | EFIAPI | |
2023 | DivU64x64Remainder ( | |
2024 | IN UINT64 Dividend, | |
2025 | IN UINT64 Divisor, | |
2026 | OUT UINT64 *Remainder OPTIONAL | |
2027 | ); | |
2028 | ||
2029 | ||
2030 | /** | |
2031 | Divides a 64-bit signed integer by a 64-bit signed integer and generates a | |
2032 | 64-bit signed result and a optional 64-bit signed remainder. | |
2033 | ||
2034 | This function divides the 64-bit signed value Dividend by the 64-bit signed | |
2035 | value Divisor and generates a 64-bit signed quotient. If Remainder is not | |
2036 | NULL, then the 64-bit signed remainder is returned in Remainder. This | |
2037 | function returns the 64-bit signed quotient. | |
2038 | ||
2039 | If Divisor is 0, then ASSERT(). | |
2040 | ||
2041 | @param Dividend A 64-bit signed value. | |
2042 | @param Divisor A 64-bit signed value. | |
2043 | @param Remainder A pointer to a 64-bit signed value. This parameter is | |
2044 | optional and may be NULL. | |
2045 | ||
2046 | @return Dividend / Divisor | |
2047 | ||
2048 | **/ | |
2049 | INT64 | |
2050 | EFIAPI | |
2051 | DivS64x64Remainder ( | |
2052 | IN INT64 Dividend, | |
2053 | IN INT64 Divisor, | |
2054 | OUT INT64 *Remainder OPTIONAL | |
2055 | ); | |
2056 | ||
2057 | ||
2058 | /** | |
2059 | Reads a 16-bit value from memory that may be unaligned. | |
2060 | ||
2061 | This function returns the 16-bit value pointed to by Buffer. The function | |
2062 | guarantees that the read operation does not produce an alignment fault. | |
2063 | ||
2064 | If the Buffer is NULL, then ASSERT(). | |
2065 | ||
2066 | @param Buffer Pointer to a 16-bit value that may be unaligned. | |
2067 | ||
2068 | @return *Uint16 | |
2069 | ||
2070 | **/ | |
2071 | UINT16 | |
2072 | EFIAPI | |
2073 | ReadUnaligned16 ( | |
2074 | IN CONST UINT16 *Uint16 | |
2075 | ); | |
2076 | ||
2077 | ||
2078 | /** | |
2079 | Writes a 16-bit value to memory that may be unaligned. | |
2080 | ||
2081 | This function writes the 16-bit value specified by Value to Buffer. Value is | |
2082 | returned. The function guarantees that the write operation does not produce | |
2083 | an alignment fault. | |
2084 | ||
2085 | If the Buffer is NULL, then ASSERT(). | |
2086 | ||
2087 | @param Buffer Pointer to a 16-bit value that may be unaligned. | |
2088 | @param Value 16-bit value to write to Buffer. | |
2089 | ||
2090 | @return Value | |
2091 | ||
2092 | **/ | |
2093 | UINT16 | |
2094 | EFIAPI | |
2095 | WriteUnaligned16 ( | |
2096 | OUT UINT16 *Uint16, | |
2097 | IN UINT16 Value | |
2098 | ); | |
2099 | ||
2100 | ||
2101 | /** | |
2102 | Reads a 24-bit value from memory that may be unaligned. | |
2103 | ||
2104 | This function returns the 24-bit value pointed to by Buffer. The function | |
2105 | guarantees that the read operation does not produce an alignment fault. | |
2106 | ||
2107 | If the Buffer is NULL, then ASSERT(). | |
2108 | ||
2109 | @param Buffer Pointer to a 24-bit value that may be unaligned. | |
2110 | ||
2111 | @return The value read. | |
2112 | ||
2113 | **/ | |
2114 | UINT32 | |
2115 | EFIAPI | |
2116 | ReadUnaligned24 ( | |
2117 | IN CONST UINT32 *Buffer | |
2118 | ); | |
2119 | ||
2120 | ||
2121 | /** | |
2122 | Writes a 24-bit value to memory that may be unaligned. | |
2123 | ||
2124 | This function writes the 24-bit value specified by Value to Buffer. Value is | |
2125 | returned. The function guarantees that the write operation does not produce | |
2126 | an alignment fault. | |
2127 | ||
2128 | If the Buffer is NULL, then ASSERT(). | |
2129 | ||
2130 | @param Buffer Pointer to a 24-bit value that may be unaligned. | |
2131 | @param Value 24-bit value to write to Buffer. | |
2132 | ||
2133 | @return The value written. | |
2134 | ||
2135 | **/ | |
2136 | UINT32 | |
2137 | EFIAPI | |
2138 | WriteUnaligned24 ( | |
2139 | OUT UINT32 *Buffer, | |
2140 | IN UINT32 Value | |
2141 | ); | |
2142 | ||
2143 | ||
2144 | /** | |
2145 | Reads a 32-bit value from memory that may be unaligned. | |
2146 | ||
2147 | This function returns the 32-bit value pointed to by Buffer. The function | |
2148 | guarantees that the read operation does not produce an alignment fault. | |
2149 | ||
2150 | If the Buffer is NULL, then ASSERT(). | |
2151 | ||
2152 | @param Buffer Pointer to a 32-bit value that may be unaligned. | |
2153 | ||
2154 | @return *Uint32 | |
2155 | ||
2156 | **/ | |
2157 | UINT32 | |
2158 | EFIAPI | |
2159 | ReadUnaligned32 ( | |
2160 | IN CONST UINT32 *Uint32 | |
2161 | ); | |
2162 | ||
2163 | ||
2164 | /** | |
2165 | Writes a 32-bit value to memory that may be unaligned. | |
2166 | ||
2167 | This function writes the 32-bit value specified by Value to Buffer. Value is | |
2168 | returned. The function guarantees that the write operation does not produce | |
2169 | an alignment fault. | |
2170 | ||
2171 | If the Buffer is NULL, then ASSERT(). | |
2172 | ||
2173 | @param Buffer Pointer to a 32-bit value that may be unaligned. | |
2174 | @param Value 32-bit value to write to Buffer. | |
2175 | ||
2176 | @return Value | |
2177 | ||
2178 | **/ | |
2179 | UINT32 | |
2180 | EFIAPI | |
2181 | WriteUnaligned32 ( | |
2182 | OUT UINT32 *Uint32, | |
2183 | IN UINT32 Value | |
2184 | ); | |
2185 | ||
2186 | ||
2187 | /** | |
2188 | Reads a 64-bit value from memory that may be unaligned. | |
2189 | ||
2190 | This function returns the 64-bit value pointed to by Buffer. The function | |
2191 | guarantees that the read operation does not produce an alignment fault. | |
2192 | ||
2193 | If the Buffer is NULL, then ASSERT(). | |
2194 | ||
2195 | @param Buffer Pointer to a 64-bit value that may be unaligned. | |
2196 | ||
2197 | @return *Uint64 | |
2198 | ||
2199 | **/ | |
2200 | UINT64 | |
2201 | EFIAPI | |
2202 | ReadUnaligned64 ( | |
2203 | IN CONST UINT64 *Uint64 | |
2204 | ); | |
2205 | ||
2206 | ||
2207 | /** | |
2208 | Writes a 64-bit value to memory that may be unaligned. | |
2209 | ||
2210 | This function writes the 64-bit value specified by Value to Buffer. Value is | |
2211 | returned. The function guarantees that the write operation does not produce | |
2212 | an alignment fault. | |
2213 | ||
2214 | If the Buffer is NULL, then ASSERT(). | |
2215 | ||
2216 | @param Buffer Pointer to a 64-bit value that may be unaligned. | |
2217 | @param Value 64-bit value to write to Buffer. | |
2218 | ||
2219 | @return Value | |
2220 | ||
2221 | **/ | |
2222 | UINT64 | |
2223 | EFIAPI | |
2224 | WriteUnaligned64 ( | |
2225 | OUT UINT64 *Uint64, | |
2226 | IN UINT64 Value | |
2227 | ); | |
2228 | ||
2229 | ||
2230 | // | |
2231 | // Bit Field Functions | |
2232 | // | |
2233 | ||
2234 | /** | |
2235 | Returns a bit field from an 8-bit value. | |
2236 | ||
2237 | Returns the bitfield specified by the StartBit and the EndBit from Operand. | |
2238 | ||
2239 | If 8-bit operations are not supported, then ASSERT(). | |
2240 | If StartBit is greater than 7, then ASSERT(). | |
2241 | If EndBit is greater than 7, then ASSERT(). | |
2242 | If EndBit is less than StartBit, then ASSERT(). | |
2243 | ||
2244 | @param Operand Operand on which to perform the bitfield operation. | |
2245 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2246 | Range 0..7. | |
2247 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2248 | Range 0..7. | |
2249 | ||
2250 | @return The bit field read. | |
2251 | ||
2252 | **/ | |
2253 | UINT8 | |
2254 | EFIAPI | |
2255 | BitFieldRead8 ( | |
2256 | IN UINT8 Operand, | |
2257 | IN UINTN StartBit, | |
2258 | IN UINTN EndBit | |
2259 | ); | |
2260 | ||
2261 | ||
2262 | /** | |
2263 | Writes a bit field to an 8-bit value, and returns the result. | |
2264 | ||
2265 | Writes Value to the bit field specified by the StartBit and the EndBit in | |
2266 | Operand. All other bits in Operand are preserved. The new 8-bit value is | |
2267 | returned. | |
2268 | ||
2269 | If 8-bit operations are not supported, then ASSERT(). | |
2270 | If StartBit is greater than 7, then ASSERT(). | |
2271 | If EndBit is greater than 7, then ASSERT(). | |
2272 | If EndBit is less than StartBit, then ASSERT(). | |
2273 | ||
2274 | @param Operand Operand on which to perform the bitfield operation. | |
2275 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2276 | Range 0..7. | |
2277 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2278 | Range 0..7. | |
2279 | @param Value New value of the bit field. | |
2280 | ||
2281 | @return The new 8-bit value. | |
2282 | ||
2283 | **/ | |
2284 | UINT8 | |
2285 | EFIAPI | |
2286 | BitFieldWrite8 ( | |
2287 | IN UINT8 Operand, | |
2288 | IN UINTN StartBit, | |
2289 | IN UINTN EndBit, | |
2290 | IN UINT8 Value | |
2291 | ); | |
2292 | ||
2293 | ||
2294 | /** | |
2295 | Reads a bit field from an 8-bit value, performs a bitwise OR, and returns the | |
2296 | result. | |
2297 | ||
2298 | Performs a bitwise inclusive OR between the bit field specified by StartBit | |
2299 | and EndBit in Operand and the value specified by OrData. All other bits in | |
2300 | Operand are preserved. The new 8-bit value is returned. | |
2301 | ||
2302 | If 8-bit operations are not supported, then ASSERT(). | |
2303 | If StartBit is greater than 7, then ASSERT(). | |
2304 | If EndBit is greater than 7, then ASSERT(). | |
2305 | If EndBit is less than StartBit, then ASSERT(). | |
2306 | ||
2307 | @param Operand Operand on which to perform the bitfield operation. | |
2308 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2309 | Range 0..7. | |
2310 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2311 | Range 0..7. | |
2312 | @param OrData The value to OR with the read value from the value | |
2313 | ||
2314 | @return The new 8-bit value. | |
2315 | ||
2316 | **/ | |
2317 | UINT8 | |
2318 | EFIAPI | |
2319 | BitFieldOr8 ( | |
2320 | IN UINT8 Operand, | |
2321 | IN UINTN StartBit, | |
2322 | IN UINTN EndBit, | |
2323 | IN UINT8 OrData | |
2324 | ); | |
2325 | ||
2326 | ||
2327 | /** | |
2328 | Reads a bit field from an 8-bit value, performs a bitwise AND, and returns | |
2329 | the result. | |
2330 | ||
2331 | Performs a bitwise AND between the bit field specified by StartBit and EndBit | |
2332 | in Operand and the value specified by AndData. All other bits in Operand are | |
2333 | preserved. The new 8-bit value is returned. | |
2334 | ||
2335 | If 8-bit operations are not supported, then ASSERT(). | |
2336 | If StartBit is greater than 7, then ASSERT(). | |
2337 | If EndBit is greater than 7, then ASSERT(). | |
2338 | If EndBit is less than StartBit, then ASSERT(). | |
2339 | ||
2340 | @param Operand Operand on which to perform the bitfield operation. | |
2341 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2342 | Range 0..7. | |
2343 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2344 | Range 0..7. | |
2345 | @param AndData The value to AND with the read value from the value. | |
2346 | ||
2347 | @return The new 8-bit value. | |
2348 | ||
2349 | **/ | |
2350 | UINT8 | |
2351 | EFIAPI | |
2352 | BitFieldAnd8 ( | |
2353 | IN UINT8 Operand, | |
2354 | IN UINTN StartBit, | |
2355 | IN UINTN EndBit, | |
2356 | IN UINT8 AndData | |
2357 | ); | |
2358 | ||
2359 | ||
2360 | /** | |
2361 | Reads a bit field from an 8-bit value, performs a bitwise AND followed by a | |
2362 | bitwise OR, and returns the result. | |
2363 | ||
2364 | Performs a bitwise AND between the bit field specified by StartBit and EndBit | |
2365 | in Operand and the value specified by AndData, followed by a bitwise | |
2366 | inclusive OR with value specified by OrData. All other bits in Operand are | |
2367 | preserved. The new 8-bit value is returned. | |
2368 | ||
2369 | If 8-bit operations are not supported, then ASSERT(). | |
2370 | If StartBit is greater than 7, then ASSERT(). | |
2371 | If EndBit is greater than 7, then ASSERT(). | |
2372 | If EndBit is less than StartBit, then ASSERT(). | |
2373 | ||
2374 | @param Operand Operand on which to perform the bitfield operation. | |
2375 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2376 | Range 0..7. | |
2377 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2378 | Range 0..7. | |
2379 | @param AndData The value to AND with the read value from the value. | |
2380 | @param OrData The value to OR with the result of the AND operation. | |
2381 | ||
2382 | @return The new 8-bit value. | |
2383 | ||
2384 | **/ | |
2385 | UINT8 | |
2386 | EFIAPI | |
2387 | BitFieldAndThenOr8 ( | |
2388 | IN UINT8 Operand, | |
2389 | IN UINTN StartBit, | |
2390 | IN UINTN EndBit, | |
2391 | IN UINT8 AndData, | |
2392 | IN UINT8 OrData | |
2393 | ); | |
2394 | ||
2395 | ||
2396 | /** | |
2397 | Returns a bit field from a 16-bit value. | |
2398 | ||
2399 | Returns the bitfield specified by the StartBit and the EndBit from Operand. | |
2400 | ||
2401 | If 16-bit operations are not supported, then ASSERT(). | |
2402 | If StartBit is greater than 15, then ASSERT(). | |
2403 | If EndBit is greater than 15, then ASSERT(). | |
2404 | If EndBit is less than StartBit, then ASSERT(). | |
2405 | ||
2406 | @param Operand Operand on which to perform the bitfield operation. | |
2407 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2408 | Range 0..15. | |
2409 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2410 | Range 0..15. | |
2411 | ||
2412 | @return The bit field read. | |
2413 | ||
2414 | **/ | |
2415 | UINT16 | |
2416 | EFIAPI | |
2417 | BitFieldRead16 ( | |
2418 | IN UINT16 Operand, | |
2419 | IN UINTN StartBit, | |
2420 | IN UINTN EndBit | |
2421 | ); | |
2422 | ||
2423 | ||
2424 | /** | |
2425 | Writes a bit field to a 16-bit value, and returns the result. | |
2426 | ||
2427 | Writes Value to the bit field specified by the StartBit and the EndBit in | |
2428 | Operand. All other bits in Operand are preserved. The new 16-bit value is | |
2429 | returned. | |
2430 | ||
2431 | If 16-bit operations are not supported, then ASSERT(). | |
2432 | If StartBit is greater than 15, then ASSERT(). | |
2433 | If EndBit is greater than 15, then ASSERT(). | |
2434 | If EndBit is less than StartBit, then ASSERT(). | |
2435 | ||
2436 | @param Operand Operand on which to perform the bitfield operation. | |
2437 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2438 | Range 0..15. | |
2439 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2440 | Range 0..15. | |
2441 | @param Value New value of the bit field. | |
2442 | ||
2443 | @return The new 16-bit value. | |
2444 | ||
2445 | **/ | |
2446 | UINT16 | |
2447 | EFIAPI | |
2448 | BitFieldWrite16 ( | |
2449 | IN UINT16 Operand, | |
2450 | IN UINTN StartBit, | |
2451 | IN UINTN EndBit, | |
2452 | IN UINT16 Value | |
2453 | ); | |
2454 | ||
2455 | ||
2456 | /** | |
2457 | Reads a bit field from a 16-bit value, performs a bitwise OR, and returns the | |
2458 | result. | |
2459 | ||
2460 | Performs a bitwise inclusive OR between the bit field specified by StartBit | |
2461 | and EndBit in Operand and the value specified by OrData. All other bits in | |
2462 | Operand are preserved. The new 16-bit value is returned. | |
2463 | ||
2464 | If 16-bit operations are not supported, then ASSERT(). | |
2465 | If StartBit is greater than 15, then ASSERT(). | |
2466 | If EndBit is greater than 15, then ASSERT(). | |
2467 | If EndBit is less than StartBit, then ASSERT(). | |
2468 | ||
2469 | @param Operand Operand on which to perform the bitfield operation. | |
2470 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2471 | Range 0..15. | |
2472 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2473 | Range 0..15. | |
2474 | @param OrData The value to OR with the read value from the value | |
2475 | ||
2476 | @return The new 16-bit value. | |
2477 | ||
2478 | **/ | |
2479 | UINT16 | |
2480 | EFIAPI | |
2481 | BitFieldOr16 ( | |
2482 | IN UINT16 Operand, | |
2483 | IN UINTN StartBit, | |
2484 | IN UINTN EndBit, | |
2485 | IN UINT16 OrData | |
2486 | ); | |
2487 | ||
2488 | ||
2489 | /** | |
2490 | Reads a bit field from a 16-bit value, performs a bitwise AND, and returns | |
2491 | the result. | |
2492 | ||
2493 | Performs a bitwise AND between the bit field specified by StartBit and EndBit | |
2494 | in Operand and the value specified by AndData. All other bits in Operand are | |
2495 | preserved. The new 16-bit value is returned. | |
2496 | ||
2497 | If 16-bit operations are not supported, then ASSERT(). | |
2498 | If StartBit is greater than 15, then ASSERT(). | |
2499 | If EndBit is greater than 15, then ASSERT(). | |
2500 | If EndBit is less than StartBit, then ASSERT(). | |
2501 | ||
2502 | @param Operand Operand on which to perform the bitfield operation. | |
2503 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2504 | Range 0..15. | |
2505 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2506 | Range 0..15. | |
2507 | @param AndData The value to AND with the read value from the value | |
2508 | ||
2509 | @return The new 16-bit value. | |
2510 | ||
2511 | **/ | |
2512 | UINT16 | |
2513 | EFIAPI | |
2514 | BitFieldAnd16 ( | |
2515 | IN UINT16 Operand, | |
2516 | IN UINTN StartBit, | |
2517 | IN UINTN EndBit, | |
2518 | IN UINT16 AndData | |
2519 | ); | |
2520 | ||
2521 | ||
2522 | /** | |
2523 | Reads a bit field from a 16-bit value, performs a bitwise AND followed by a | |
2524 | bitwise OR, and returns the result. | |
2525 | ||
2526 | Performs a bitwise AND between the bit field specified by StartBit and EndBit | |
2527 | in Operand and the value specified by AndData, followed by a bitwise | |
2528 | inclusive OR with value specified by OrData. All other bits in Operand are | |
2529 | preserved. The new 16-bit value is returned. | |
2530 | ||
2531 | If 16-bit operations are not supported, then ASSERT(). | |
2532 | If StartBit is greater than 15, then ASSERT(). | |
2533 | If EndBit is greater than 15, then ASSERT(). | |
2534 | If EndBit is less than StartBit, then ASSERT(). | |
2535 | ||
2536 | @param Operand Operand on which to perform the bitfield operation. | |
2537 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2538 | Range 0..15. | |
2539 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2540 | Range 0..15. | |
2541 | @param AndData The value to AND with the read value from the value. | |
2542 | @param OrData The value to OR with the result of the AND operation. | |
2543 | ||
2544 | @return The new 16-bit value. | |
2545 | ||
2546 | **/ | |
2547 | UINT16 | |
2548 | EFIAPI | |
2549 | BitFieldAndThenOr16 ( | |
2550 | IN UINT16 Operand, | |
2551 | IN UINTN StartBit, | |
2552 | IN UINTN EndBit, | |
2553 | IN UINT16 AndData, | |
2554 | IN UINT16 OrData | |
2555 | ); | |
2556 | ||
2557 | ||
2558 | /** | |
2559 | Returns a bit field from a 32-bit value. | |
2560 | ||
2561 | Returns the bitfield specified by the StartBit and the EndBit from Operand. | |
2562 | ||
2563 | If 32-bit operations are not supported, then ASSERT(). | |
2564 | If StartBit is greater than 31, then ASSERT(). | |
2565 | If EndBit is greater than 31, then ASSERT(). | |
2566 | If EndBit is less than StartBit, then ASSERT(). | |
2567 | ||
2568 | @param Operand Operand on which to perform the bitfield operation. | |
2569 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2570 | Range 0..31. | |
2571 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2572 | Range 0..31. | |
2573 | ||
2574 | @return The bit field read. | |
2575 | ||
2576 | **/ | |
2577 | UINT32 | |
2578 | EFIAPI | |
2579 | BitFieldRead32 ( | |
2580 | IN UINT32 Operand, | |
2581 | IN UINTN StartBit, | |
2582 | IN UINTN EndBit | |
2583 | ); | |
2584 | ||
2585 | ||
2586 | /** | |
2587 | Writes a bit field to a 32-bit value, and returns the result. | |
2588 | ||
2589 | Writes Value to the bit field specified by the StartBit and the EndBit in | |
2590 | Operand. All other bits in Operand are preserved. The new 32-bit value is | |
2591 | returned. | |
2592 | ||
2593 | If 32-bit operations are not supported, then ASSERT(). | |
2594 | If StartBit is greater than 31, then ASSERT(). | |
2595 | If EndBit is greater than 31, then ASSERT(). | |
2596 | If EndBit is less than StartBit, then ASSERT(). | |
2597 | ||
2598 | @param Operand Operand on which to perform the bitfield operation. | |
2599 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2600 | Range 0..31. | |
2601 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2602 | Range 0..31. | |
2603 | @param Value New value of the bit field. | |
2604 | ||
2605 | @return The new 32-bit value. | |
2606 | ||
2607 | **/ | |
2608 | UINT32 | |
2609 | EFIAPI | |
2610 | BitFieldWrite32 ( | |
2611 | IN UINT32 Operand, | |
2612 | IN UINTN StartBit, | |
2613 | IN UINTN EndBit, | |
2614 | IN UINT32 Value | |
2615 | ); | |
2616 | ||
2617 | ||
2618 | /** | |
2619 | Reads a bit field from a 32-bit value, performs a bitwise OR, and returns the | |
2620 | result. | |
2621 | ||
2622 | Performs a bitwise inclusive OR between the bit field specified by StartBit | |
2623 | and EndBit in Operand and the value specified by OrData. All other bits in | |
2624 | Operand are preserved. The new 32-bit value is returned. | |
2625 | ||
2626 | If 32-bit operations are not supported, then ASSERT(). | |
2627 | If StartBit is greater than 31, then ASSERT(). | |
2628 | If EndBit is greater than 31, then ASSERT(). | |
2629 | If EndBit is less than StartBit, then ASSERT(). | |
2630 | ||
2631 | @param Operand Operand on which to perform the bitfield operation. | |
2632 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2633 | Range 0..31. | |
2634 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2635 | Range 0..31. | |
2636 | @param OrData The value to OR with the read value from the value | |
2637 | ||
2638 | @return The new 32-bit value. | |
2639 | ||
2640 | **/ | |
2641 | UINT32 | |
2642 | EFIAPI | |
2643 | BitFieldOr32 ( | |
2644 | IN UINT32 Operand, | |
2645 | IN UINTN StartBit, | |
2646 | IN UINTN EndBit, | |
2647 | IN UINT32 OrData | |
2648 | ); | |
2649 | ||
2650 | ||
2651 | /** | |
2652 | Reads a bit field from a 32-bit value, performs a bitwise AND, and returns | |
2653 | the result. | |
2654 | ||
2655 | Performs a bitwise AND between the bit field specified by StartBit and EndBit | |
2656 | in Operand and the value specified by AndData. All other bits in Operand are | |
2657 | preserved. The new 32-bit value is returned. | |
2658 | ||
2659 | If 32-bit operations are not supported, then ASSERT(). | |
2660 | If StartBit is greater than 31, then ASSERT(). | |
2661 | If EndBit is greater than 31, then ASSERT(). | |
2662 | If EndBit is less than StartBit, then ASSERT(). | |
2663 | ||
2664 | @param Operand Operand on which to perform the bitfield operation. | |
2665 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2666 | Range 0..31. | |
2667 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2668 | Range 0..31. | |
2669 | @param AndData The value to AND with the read value from the value | |
2670 | ||
2671 | @return The new 32-bit value. | |
2672 | ||
2673 | **/ | |
2674 | UINT32 | |
2675 | EFIAPI | |
2676 | BitFieldAnd32 ( | |
2677 | IN UINT32 Operand, | |
2678 | IN UINTN StartBit, | |
2679 | IN UINTN EndBit, | |
2680 | IN UINT32 AndData | |
2681 | ); | |
2682 | ||
2683 | ||
2684 | /** | |
2685 | Reads a bit field from a 32-bit value, performs a bitwise AND followed by a | |
2686 | bitwise OR, and returns the result. | |
2687 | ||
2688 | Performs a bitwise AND between the bit field specified by StartBit and EndBit | |
2689 | in Operand and the value specified by AndData, followed by a bitwise | |
2690 | inclusive OR with value specified by OrData. All other bits in Operand are | |
2691 | preserved. The new 32-bit value is returned. | |
2692 | ||
2693 | If 32-bit operations are not supported, then ASSERT(). | |
2694 | If StartBit is greater than 31, then ASSERT(). | |
2695 | If EndBit is greater than 31, then ASSERT(). | |
2696 | If EndBit is less than StartBit, then ASSERT(). | |
2697 | ||
2698 | @param Operand Operand on which to perform the bitfield operation. | |
2699 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2700 | Range 0..31. | |
2701 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2702 | Range 0..31. | |
2703 | @param AndData The value to AND with the read value from the value. | |
2704 | @param OrData The value to OR with the result of the AND operation. | |
2705 | ||
2706 | @return The new 32-bit value. | |
2707 | ||
2708 | **/ | |
2709 | UINT32 | |
2710 | EFIAPI | |
2711 | BitFieldAndThenOr32 ( | |
2712 | IN UINT32 Operand, | |
2713 | IN UINTN StartBit, | |
2714 | IN UINTN EndBit, | |
2715 | IN UINT32 AndData, | |
2716 | IN UINT32 OrData | |
2717 | ); | |
2718 | ||
2719 | ||
2720 | /** | |
2721 | Returns a bit field from a 64-bit value. | |
2722 | ||
2723 | Returns the bitfield specified by the StartBit and the EndBit from Operand. | |
2724 | ||
2725 | If 64-bit operations are not supported, then ASSERT(). | |
2726 | If StartBit is greater than 63, then ASSERT(). | |
2727 | If EndBit is greater than 63, then ASSERT(). | |
2728 | If EndBit is less than StartBit, then ASSERT(). | |
2729 | ||
2730 | @param Operand Operand on which to perform the bitfield operation. | |
2731 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2732 | Range 0..63. | |
2733 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2734 | Range 0..63. | |
2735 | ||
2736 | @return The bit field read. | |
2737 | ||
2738 | **/ | |
2739 | UINT64 | |
2740 | EFIAPI | |
2741 | BitFieldRead64 ( | |
2742 | IN UINT64 Operand, | |
2743 | IN UINTN StartBit, | |
2744 | IN UINTN EndBit | |
2745 | ); | |
2746 | ||
2747 | ||
2748 | /** | |
2749 | Writes a bit field to a 64-bit value, and returns the result. | |
2750 | ||
2751 | Writes Value to the bit field specified by the StartBit and the EndBit in | |
2752 | Operand. All other bits in Operand are preserved. The new 64-bit value is | |
2753 | returned. | |
2754 | ||
2755 | If 64-bit operations are not supported, then ASSERT(). | |
2756 | If StartBit is greater than 63, then ASSERT(). | |
2757 | If EndBit is greater than 63, then ASSERT(). | |
2758 | If EndBit is less than StartBit, then ASSERT(). | |
2759 | ||
2760 | @param Operand Operand on which to perform the bitfield operation. | |
2761 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2762 | Range 0..63. | |
2763 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2764 | Range 0..63. | |
2765 | @param Value New value of the bit field. | |
2766 | ||
2767 | @return The new 64-bit value. | |
2768 | ||
2769 | **/ | |
2770 | UINT64 | |
2771 | EFIAPI | |
2772 | BitFieldWrite64 ( | |
2773 | IN UINT64 Operand, | |
2774 | IN UINTN StartBit, | |
2775 | IN UINTN EndBit, | |
2776 | IN UINT64 Value | |
2777 | ); | |
2778 | ||
2779 | ||
2780 | /** | |
2781 | Reads a bit field from a 64-bit value, performs a bitwise OR, and returns the | |
2782 | result. | |
2783 | ||
2784 | Performs a bitwise inclusive OR between the bit field specified by StartBit | |
2785 | and EndBit in Operand and the value specified by OrData. All other bits in | |
2786 | Operand are preserved. The new 64-bit value is returned. | |
2787 | ||
2788 | If 64-bit operations are not supported, then ASSERT(). | |
2789 | If StartBit is greater than 63, then ASSERT(). | |
2790 | If EndBit is greater than 63, then ASSERT(). | |
2791 | If EndBit is less than StartBit, then ASSERT(). | |
2792 | ||
2793 | @param Operand Operand on which to perform the bitfield operation. | |
2794 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2795 | Range 0..63. | |
2796 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2797 | Range 0..63. | |
2798 | @param OrData The value to OR with the read value from the value | |
2799 | ||
2800 | @return The new 64-bit value. | |
2801 | ||
2802 | **/ | |
2803 | UINT64 | |
2804 | EFIAPI | |
2805 | BitFieldOr64 ( | |
2806 | IN UINT64 Operand, | |
2807 | IN UINTN StartBit, | |
2808 | IN UINTN EndBit, | |
2809 | IN UINT64 OrData | |
2810 | ); | |
2811 | ||
2812 | ||
2813 | /** | |
2814 | Reads a bit field from a 64-bit value, performs a bitwise AND, and returns | |
2815 | the result. | |
2816 | ||
2817 | Performs a bitwise AND between the bit field specified by StartBit and EndBit | |
2818 | in Operand and the value specified by AndData. All other bits in Operand are | |
2819 | preserved. The new 64-bit value is returned. | |
2820 | ||
2821 | If 64-bit operations are not supported, then ASSERT(). | |
2822 | If StartBit is greater than 63, then ASSERT(). | |
2823 | If EndBit is greater than 63, then ASSERT(). | |
2824 | If EndBit is less than StartBit, then ASSERT(). | |
2825 | ||
2826 | @param Operand Operand on which to perform the bitfield operation. | |
2827 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2828 | Range 0..63. | |
2829 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2830 | Range 0..63. | |
2831 | @param AndData The value to AND with the read value from the value | |
2832 | ||
2833 | @return The new 64-bit value. | |
2834 | ||
2835 | **/ | |
2836 | UINT64 | |
2837 | EFIAPI | |
2838 | BitFieldAnd64 ( | |
2839 | IN UINT64 Operand, | |
2840 | IN UINTN StartBit, | |
2841 | IN UINTN EndBit, | |
2842 | IN UINT64 AndData | |
2843 | ); | |
2844 | ||
2845 | ||
2846 | /** | |
2847 | Reads a bit field from a 64-bit value, performs a bitwise AND followed by a | |
2848 | bitwise OR, and returns the result. | |
2849 | ||
2850 | Performs a bitwise AND between the bit field specified by StartBit and EndBit | |
2851 | in Operand and the value specified by AndData, followed by a bitwise | |
2852 | inclusive OR with value specified by OrData. All other bits in Operand are | |
2853 | preserved. The new 64-bit value is returned. | |
2854 | ||
2855 | If 64-bit operations are not supported, then ASSERT(). | |
2856 | If StartBit is greater than 63, then ASSERT(). | |
2857 | If EndBit is greater than 63, then ASSERT(). | |
2858 | If EndBit is less than StartBit, then ASSERT(). | |
2859 | ||
2860 | @param Operand Operand on which to perform the bitfield operation. | |
2861 | @param StartBit The ordinal of the least significant bit in the bit field. | |
2862 | Range 0..63. | |
2863 | @param EndBit The ordinal of the most significant bit in the bit field. | |
2864 | Range 0..63. | |
2865 | @param AndData The value to AND with the read value from the value. | |
2866 | @param OrData The value to OR with the result of the AND operation. | |
2867 | ||
2868 | @return The new 64-bit value. | |
2869 | ||
2870 | **/ | |
2871 | UINT64 | |
2872 | EFIAPI | |
2873 | BitFieldAndThenOr64 ( | |
2874 | IN UINT64 Operand, | |
2875 | IN UINTN StartBit, | |
2876 | IN UINTN EndBit, | |
2877 | IN UINT64 AndData, | |
2878 | IN UINT64 OrData | |
2879 | ); | |
2880 | ||
2881 | ||
2882 | // | |
2883 | // Base Library Synchronization Functions | |
2884 | // | |
2885 | ||
2886 | /** | |
2887 | Retrieves the architecture specific spin lock alignment requirements for | |
2888 | optimal spin lock performance. | |
2889 | ||
2890 | This function retrieves the spin lock alignment requirements for optimal | |
2891 | performance on a given CPU architecture. The spin lock alignment must be a | |
2892 | power of two and is returned by this function. If there are no alignment | |
2893 | requirements, then 1 must be returned. The spin lock synchronization | |
2894 | functions must function correctly if the spin lock size and alignment values | |
2895 | returned by this function are not used at all. These values are hints to the | |
2896 | consumers of the spin lock synchronization functions to obtain optimal spin | |
2897 | lock performance. | |
2898 | ||
2899 | @return The architecture specific spin lock alignment. | |
2900 | ||
2901 | **/ | |
2902 | UINTN | |
2903 | EFIAPI | |
2904 | GetSpinLockProperties ( | |
2905 | VOID | |
2906 | ); | |
2907 | ||
2908 | ||
2909 | /** | |
2910 | Initializes a spin lock to the released state and returns the spin lock. | |
2911 | ||
2912 | This function initializes the spin lock specified by SpinLock to the released | |
2913 | state, and returns SpinLock. Optimal performance can be achieved by calling | |
2914 | GetSpinLockProperties() to determine the size and alignment requirements for | |
2915 | SpinLock. | |
2916 | ||
2917 | If SpinLock is NULL, then ASSERT(). | |
2918 | ||
2919 | @param SpinLock A pointer to the spin lock to initialize to the released | |
2920 | state. | |
2921 | ||
2922 | @return SpinLock | |
2923 | ||
2924 | **/ | |
2925 | SPIN_LOCK * | |
2926 | EFIAPI | |
2927 | InitializeSpinLock ( | |
2928 | IN SPIN_LOCK *SpinLock | |
2929 | ); | |
2930 | ||
2931 | ||
2932 | /** | |
2933 | Waits until a spin lock can be placed in the acquired state. | |
2934 | ||
2935 | This function checks the state of the spin lock specified by SpinLock. If | |
2936 | SpinLock is in the released state, then this function places SpinLock in the | |
2937 | acquired state and returns SpinLock. Otherwise, this function waits | |
2938 | indefinitely for the spin lock to be released, and then places it in the | |
2939 | acquired state and returns SpinLock. All state transitions of SpinLock must | |
2940 | be performed using MP safe mechanisms. | |
2941 | ||
2942 | If SpinLock is NULL, then ASSERT(). | |
2943 | If SpinLock was not initialized with InitializeSpinLock(), then ASSERT(). | |
2944 | If PcdSpinLockTimeout is not zero, and SpinLock is can not be acquired in | |
2945 | PcdSpinLockTimeout microseconds, then ASSERT(). | |
2946 | ||
2947 | @param SpinLock A pointer to the spin lock to place in the acquired state. | |
2948 | ||
2949 | @return SpinLock | |
2950 | ||
2951 | **/ | |
2952 | SPIN_LOCK * | |
2953 | EFIAPI | |
2954 | AcquireSpinLock ( | |
2955 | IN SPIN_LOCK *SpinLock | |
2956 | ); | |
2957 | ||
2958 | ||
2959 | /** | |
2960 | Attempts to place a spin lock in the acquired state. | |
2961 | ||
2962 | This function checks the state of the spin lock specified by SpinLock. If | |
2963 | SpinLock is in the released state, then this function places SpinLock in the | |
2964 | acquired state and returns TRUE. Otherwise, FALSE is returned. All state | |
2965 | transitions of SpinLock must be performed using MP safe mechanisms. | |
2966 | ||
2967 | If SpinLock is NULL, then ASSERT(). | |
2968 | If SpinLock was not initialized with InitializeSpinLock(), then ASSERT(). | |
2969 | ||
2970 | @param SpinLock A pointer to the spin lock to place in the acquired state. | |
2971 | ||
2972 | @retval TRUE SpinLock was placed in the acquired state. | |
2973 | @retval FALSE SpinLock could not be acquired. | |
2974 | ||
2975 | **/ | |
2976 | BOOLEAN | |
2977 | EFIAPI | |
2978 | AcquireSpinLockOrFail ( | |
2979 | IN SPIN_LOCK *SpinLock | |
2980 | ); | |
2981 | ||
2982 | ||
2983 | /** | |
2984 | Releases a spin lock. | |
2985 | ||
2986 | This function places the spin lock specified by SpinLock in the release state | |
2987 | and returns SpinLock. | |
2988 | ||
2989 | If SpinLock is NULL, then ASSERT(). | |
2990 | If SpinLock was not initialized with InitializeSpinLock(), then ASSERT(). | |
2991 | ||
2992 | @param SpinLock A pointer to the spin lock to release. | |
2993 | ||
2994 | @return SpinLock | |
2995 | ||
2996 | **/ | |
2997 | SPIN_LOCK * | |
2998 | EFIAPI | |
2999 | ReleaseSpinLock ( | |
3000 | IN SPIN_LOCK *SpinLock | |
3001 | ); | |
3002 | ||
3003 | ||
3004 | /** | |
3005 | Performs an atomic increment of an 32-bit unsigned integer. | |
3006 | ||
3007 | Performs an atomic increment of the 32-bit unsigned integer specified by | |
3008 | Value and returns the incremented value. The increment operation must be | |
3009 | performed using MP safe mechanisms. The state of the return value is not | |
3010 | guaranteed to be MP safe. | |
3011 | ||
3012 | If Value is NULL, then ASSERT(). | |
3013 | ||
3014 | @param Value A pointer to the 32-bit value to increment. | |
3015 | ||
3016 | @return The incremented value. | |
3017 | ||
3018 | **/ | |
3019 | UINT32 | |
3020 | EFIAPI | |
3021 | InterlockedIncrement ( | |
3022 | IN UINT32 *Value | |
3023 | ); | |
3024 | ||
3025 | ||
3026 | /** | |
3027 | Performs an atomic decrement of an 32-bit unsigned integer. | |
3028 | ||
3029 | Performs an atomic decrement of the 32-bit unsigned integer specified by | |
3030 | Value and returns the decremented value. The decrement operation must be | |
3031 | performed using MP safe mechanisms. The state of the return value is not | |
3032 | guaranteed to be MP safe. | |
3033 | ||
3034 | If Value is NULL, then ASSERT(). | |
3035 | ||
3036 | @param Value A pointer to the 32-bit value to decrement. | |
3037 | ||
3038 | @return The decremented value. | |
3039 | ||
3040 | **/ | |
3041 | UINT32 | |
3042 | EFIAPI | |
3043 | InterlockedDecrement ( | |
3044 | IN UINT32 *Value | |
3045 | ); | |
3046 | ||
3047 | ||
3048 | /** | |
3049 | Performs an atomic compare exchange operation on a 32-bit unsigned integer. | |
3050 | ||
3051 | Performs an atomic compare exchange operation on the 32-bit unsigned integer | |
3052 | specified by Value. If Value is equal to CompareValue, then Value is set to | |
3053 | ExchangeValue and CompareValue is returned. If Value is not equal to CompareValue, | |
3054 | then Value is returned. The compare exchange operation must be performed using | |
3055 | MP safe mechanisms. | |
3056 | ||
3057 | If Value is NULL, then ASSERT(). | |
3058 | ||
3059 | @param Value A pointer to the 32-bit value for the compare exchange | |
3060 | operation. | |
3061 | @param CompareValue 32-bit value used in compare operation. | |
3062 | @param ExchangeValue 32-bit value used in exchange operation. | |
3063 | ||
3064 | @return The original *Value before exchange. | |
3065 | ||
3066 | **/ | |
3067 | UINT32 | |
3068 | EFIAPI | |
3069 | InterlockedCompareExchange32 ( | |
3070 | IN OUT UINT32 *Value, | |
3071 | IN UINT32 CompareValue, | |
3072 | IN UINT32 ExchangeValue | |
3073 | ); | |
3074 | ||
3075 | ||
3076 | /** | |
3077 | Performs an atomic compare exchange operation on a 64-bit unsigned integer. | |
3078 | ||
3079 | Performs an atomic compare exchange operation on the 64-bit unsigned integer specified | |
3080 | by Value. If Value is equal to CompareValue, then Value is set to ExchangeValue and | |
3081 | CompareValue is returned. If Value is not equal to CompareValue, then Value is returned. | |
3082 | The compare exchange operation must be performed using MP safe mechanisms. | |
3083 | ||
3084 | If Value is NULL, then ASSERT(). | |
3085 | ||
3086 | @param Value A pointer to the 64-bit value for the compare exchange | |
3087 | operation. | |
3088 | @param CompareValue 64-bit value used in compare operation. | |
3089 | @param ExchangeValue 64-bit value used in exchange operation. | |
3090 | ||
3091 | @return The original *Value before exchange. | |
3092 | ||
3093 | **/ | |
3094 | UINT64 | |
3095 | EFIAPI | |
3096 | InterlockedCompareExchange64 ( | |
3097 | IN OUT UINT64 *Value, | |
3098 | IN UINT64 CompareValue, | |
3099 | IN UINT64 ExchangeValue | |
3100 | ); | |
3101 | ||
3102 | ||
3103 | /** | |
3104 | Performs an atomic compare exchange operation on a pointer value. | |
3105 | ||
3106 | Performs an atomic compare exchange operation on the pointer value specified | |
3107 | by Value. If Value is equal to CompareValue, then Value is set to | |
3108 | ExchangeValue and CompareValue is returned. If Value is not equal to | |
3109 | CompareValue, then Value is returned. The compare exchange operation must be | |
3110 | performed using MP safe mechanisms. | |
3111 | ||
3112 | If Value is NULL, then ASSERT(). | |
3113 | ||
3114 | @param Value A pointer to the pointer value for the compare exchange | |
3115 | operation. | |
3116 | @param CompareValue Pointer value used in compare operation. | |
3117 | @param ExchangeValue Pointer value used in exchange operation. | |
3118 | ||
3119 | **/ | |
3120 | VOID * | |
3121 | EFIAPI | |
3122 | InterlockedCompareExchangePointer ( | |
3123 | IN OUT VOID **Value, | |
3124 | IN VOID *CompareValue, | |
3125 | IN VOID *ExchangeValue | |
3126 | ); | |
3127 | ||
3128 | ||
3129 | // | |
3130 | // Base Library Checksum Functions | |
3131 | // | |
3132 | ||
3133 | /** | |
3134 | Calculate the sum of all elements in a buffer in unit of UINT8. | |
3135 | During calculation, the carry bits are dropped. | |
3136 | ||
3137 | This function calculates the sum of all elements in a buffer | |
3138 | in unit of UINT8. The carry bits in result of addition are dropped. | |
3139 | The result is returned as UINT8. If Length is Zero, then Zero is | |
3140 | returned. | |
3141 | ||
3142 | If Buffer is NULL, then ASSERT(). | |
3143 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). | |
3144 | ||
3145 | @param Buffer Pointer to the buffer to carry out the sum operation. | |
3146 | @param Length The size, in bytes, of Buffer . | |
3147 | ||
3148 | @return Sum The sum of Buffer with carry bits dropped during additions. | |
3149 | ||
3150 | **/ | |
3151 | UINT8 | |
3152 | EFIAPI | |
3153 | CalculateSum8 ( | |
3154 | IN CONST UINT8 *Buffer, | |
3155 | IN UINTN Length | |
3156 | ); | |
3157 | ||
3158 | ||
3159 | /** | |
3160 | Returns the two's complement checksum of all elements in a buffer | |
3161 | of 8-bit values. | |
3162 | ||
3163 | This function first calculates the sum of the 8-bit values in the | |
3164 | buffer specified by Buffer and Length. The carry bits in the result | |
3165 | of addition are dropped. Then, the two's complement of the sum is | |
3166 | returned. If Length is 0, then 0 is returned. | |
3167 | ||
3168 | If Buffer is NULL, then ASSERT(). | |
3169 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). | |
3170 | ||
3171 | ||
3172 | @param Buffer Pointer to the buffer to carry out the checksum operation. | |
3173 | @param Length The size, in bytes, of Buffer. | |
3174 | ||
3175 | @return Checksum The 2's complement checksum of Buffer. | |
3176 | ||
3177 | **/ | |
3178 | UINT8 | |
3179 | EFIAPI | |
3180 | CalculateCheckSum8 ( | |
3181 | IN CONST UINT8 *Buffer, | |
3182 | IN UINTN Length | |
3183 | ); | |
3184 | ||
3185 | ||
3186 | /** | |
3187 | Returns the sum of all elements in a buffer of 16-bit values. During | |
3188 | calculation, the carry bits are dropped. | |
3189 | ||
3190 | This function calculates the sum of the 16-bit values in the buffer | |
3191 | specified by Buffer and Length. The carry bits in result of addition are dropped. | |
3192 | The 16-bit result is returned. If Length is 0, then 0 is returned. | |
3193 | ||
3194 | If Buffer is NULL, then ASSERT(). | |
3195 | If Buffer is not aligned on a 16-bit boundary, then ASSERT(). | |
3196 | If Length is not aligned on a 16-bit boundary, then ASSERT(). | |
3197 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). | |
3198 | ||
3199 | @param Buffer Pointer to the buffer to carry out the sum operation. | |
3200 | @param Length The size, in bytes, of Buffer. | |
3201 | ||
3202 | @return Sum The sum of Buffer with carry bits dropped during additions. | |
3203 | ||
3204 | **/ | |
3205 | UINT16 | |
3206 | EFIAPI | |
3207 | CalculateSum16 ( | |
3208 | IN CONST UINT16 *Buffer, | |
3209 | IN UINTN Length | |
3210 | ); | |
3211 | ||
3212 | ||
3213 | /** | |
3214 | Returns the two's complement checksum of all elements in a buffer of | |
3215 | 16-bit values. | |
3216 | ||
3217 | This function first calculates the sum of the 16-bit values in the buffer | |
3218 | specified by Buffer and Length. The carry bits in the result of addition | |
3219 | are dropped. Then, the two's complement of the sum is returned. If Length | |
3220 | is 0, then 0 is returned. | |
3221 | ||
3222 | If Buffer is NULL, then ASSERT(). | |
3223 | If Buffer is not aligned on a 16-bit boundary, then ASSERT(). | |
3224 | If Length is not aligned on a 16-bit boundary, then ASSERT(). | |
3225 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). | |
3226 | ||
3227 | @param Buffer Pointer to the buffer to carry out the checksum operation. | |
3228 | @param Length The size, in bytes, of Buffer. | |
3229 | ||
3230 | @return Checksum The 2's complement checksum of Buffer. | |
3231 | ||
3232 | **/ | |
3233 | UINT16 | |
3234 | EFIAPI | |
3235 | CalculateCheckSum16 ( | |
3236 | IN CONST UINT16 *Buffer, | |
3237 | IN UINTN Length | |
3238 | ); | |
3239 | ||
3240 | ||
3241 | /** | |
3242 | Returns the sum of all elements in a buffer of 32-bit values. During | |
3243 | calculation, the carry bits are dropped. | |
3244 | ||
3245 | This function calculates the sum of the 32-bit values in the buffer | |
3246 | specified by Buffer and Length. The carry bits in result of addition are dropped. | |
3247 | The 32-bit result is returned. If Length is 0, then 0 is returned. | |
3248 | ||
3249 | If Buffer is NULL, then ASSERT(). | |
3250 | If Buffer is not aligned on a 32-bit boundary, then ASSERT(). | |
3251 | If Length is not aligned on a 32-bit boundary, then ASSERT(). | |
3252 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). | |
3253 | ||
3254 | @param Buffer Pointer to the buffer to carry out the sum operation. | |
3255 | @param Length The size, in bytes, of Buffer. | |
3256 | ||
3257 | @return Sum The sum of Buffer with carry bits dropped during additions. | |
3258 | ||
3259 | **/ | |
3260 | UINT32 | |
3261 | EFIAPI | |
3262 | CalculateSum32 ( | |
3263 | IN CONST UINT32 *Buffer, | |
3264 | IN UINTN Length | |
3265 | ); | |
3266 | ||
3267 | ||
3268 | /** | |
3269 | Returns the two's complement checksum of all elements in a buffer of | |
3270 | 32-bit values. | |
3271 | ||
3272 | This function first calculates the sum of the 32-bit values in the buffer | |
3273 | specified by Buffer and Length. The carry bits in the result of addition | |
3274 | are dropped. Then, the two's complement of the sum is returned. If Length | |
3275 | is 0, then 0 is returned. | |
3276 | ||
3277 | If Buffer is NULL, then ASSERT(). | |
3278 | If Buffer is not aligned on a 32-bit boundary, then ASSERT(). | |
3279 | If Length is not aligned on a 32-bit boundary, then ASSERT(). | |
3280 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). | |
3281 | ||
3282 | @param Buffer Pointer to the buffer to carry out the checksum operation. | |
3283 | @param Length The size, in bytes, of Buffer. | |
3284 | ||
3285 | @return Checksum The 2's complement checksum of Buffer. | |
3286 | ||
3287 | **/ | |
3288 | UINT32 | |
3289 | EFIAPI | |
3290 | CalculateCheckSum32 ( | |
3291 | IN CONST UINT32 *Buffer, | |
3292 | IN UINTN Length | |
3293 | ); | |
3294 | ||
3295 | ||
3296 | /** | |
3297 | Returns the sum of all elements in a buffer of 64-bit values. During | |
3298 | calculation, the carry bits are dropped. | |
3299 | ||
3300 | This function calculates the sum of the 64-bit values in the buffer | |
3301 | specified by Buffer and Length. The carry bits in result of addition are dropped. | |
3302 | The 64-bit result is returned. If Length is 0, then 0 is returned. | |
3303 | ||
3304 | If Buffer is NULL, then ASSERT(). | |
3305 | If Buffer is not aligned on a 64-bit boundary, then ASSERT(). | |
3306 | If Length is not aligned on a 64-bit boundary, then ASSERT(). | |
3307 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). | |
3308 | ||
3309 | @param Buffer Pointer to the buffer to carry out the sum operation. | |
3310 | @param Length The size, in bytes, of Buffer. | |
3311 | ||
3312 | @return Sum The sum of Buffer with carry bits dropped during additions. | |
3313 | ||
3314 | **/ | |
3315 | UINT64 | |
3316 | EFIAPI | |
3317 | CalculateSum64 ( | |
3318 | IN CONST UINT64 *Buffer, | |
3319 | IN UINTN Length | |
3320 | ); | |
3321 | ||
3322 | ||
3323 | /** | |
3324 | Returns the two's complement checksum of all elements in a buffer of | |
3325 | 64-bit values. | |
3326 | ||
3327 | This function first calculates the sum of the 64-bit values in the buffer | |
3328 | specified by Buffer and Length. The carry bits in the result of addition | |
3329 | are dropped. Then, the two's complement of the sum is returned. If Length | |
3330 | is 0, then 0 is returned. | |
3331 | ||
3332 | If Buffer is NULL, then ASSERT(). | |
3333 | If Buffer is not aligned on a 64-bit boundary, then ASSERT(). | |
3334 | If Length is not aligned on a 64-bit boundary, then ASSERT(). | |
3335 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). | |
3336 | ||
3337 | @param Buffer Pointer to the buffer to carry out the checksum operation. | |
3338 | @param Length The size, in bytes, of Buffer. | |
3339 | ||
3340 | @return Checksum The 2's complement checksum of Buffer. | |
3341 | ||
3342 | **/ | |
3343 | UINT64 | |
3344 | EFIAPI | |
3345 | CalculateCheckSum64 ( | |
3346 | IN CONST UINT64 *Buffer, | |
3347 | IN UINTN Length | |
3348 | ); | |
3349 | ||
3350 | ||
3351 | // | |
3352 | // Base Library CPU Functions | |
3353 | // | |
3354 | typedef | |
3355 | VOID | |
3356 | (EFIAPI *SWITCH_STACK_ENTRY_POINT) ( | |
3357 | IN VOID *Context1, OPTIONAL | |
3358 | IN VOID *Context2 OPTIONAL | |
3359 | ); | |
3360 | ||
3361 | ||
3362 | /** | |
3363 | Used to serialize load and store operations. | |
3364 | ||
3365 | All loads and stores that proceed calls to this function are guaranteed to be | |
3366 | globally visible when this function returns. | |
3367 | ||
3368 | **/ | |
3369 | VOID | |
3370 | EFIAPI | |
3371 | MemoryFence ( | |
3372 | VOID | |
3373 | ); | |
3374 | ||
3375 | ||
3376 | /** | |
3377 | Saves the current CPU context that can be restored with a call to LongJump() | |
3378 | and returns 0. | |
3379 | ||
3380 | Saves the current CPU context in the buffer specified by JumpBuffer and | |
3381 | returns 0. The initial call to SetJump() must always return 0. Subsequent | |
3382 | calls to LongJump() cause a non-zero value to be returned by SetJump(). | |
3383 | ||
3384 | If JumpBuffer is NULL, then ASSERT(). | |
3385 | For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT(). | |
3386 | ||
3387 | @param JumpBuffer A pointer to CPU context buffer. | |
3388 | ||
3389 | @retval 0 Indicates a return from SetJump(). | |
3390 | ||
3391 | **/ | |
3392 | UINTN | |
3393 | EFIAPI | |
3394 | SetJump ( | |
3395 | OUT BASE_LIBRARY_JUMP_BUFFER *JumpBuffer | |
3396 | ); | |
3397 | ||
3398 | ||
3399 | /** | |
3400 | Restores the CPU context that was saved with SetJump(). | |
3401 | ||
3402 | Restores the CPU context from the buffer specified by JumpBuffer. This | |
3403 | function never returns to the caller. Instead is resumes execution based on | |
3404 | the state of JumpBuffer. | |
3405 | ||
3406 | If JumpBuffer is NULL, then ASSERT(). | |
3407 | For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT(). | |
3408 | If Value is 0, then ASSERT(). | |
3409 | ||
3410 | @param JumpBuffer A pointer to CPU context buffer. | |
3411 | @param Value The value to return when the SetJump() context is | |
3412 | restored and must be non-zero. | |
3413 | ||
3414 | **/ | |
3415 | VOID | |
3416 | EFIAPI | |
3417 | LongJump ( | |
3418 | IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer, | |
3419 | IN UINTN Value | |
3420 | ); | |
3421 | ||
3422 | ||
3423 | /** | |
3424 | Enables CPU interrupts. | |
3425 | ||
3426 | Enables CPU interrupts. | |
3427 | ||
3428 | **/ | |
3429 | VOID | |
3430 | EFIAPI | |
3431 | EnableInterrupts ( | |
3432 | VOID | |
3433 | ); | |
3434 | ||
3435 | ||
3436 | /** | |
3437 | Disables CPU interrupts. | |
3438 | ||
3439 | Disables CPU interrupts. | |
3440 | ||
3441 | **/ | |
3442 | VOID | |
3443 | EFIAPI | |
3444 | DisableInterrupts ( | |
3445 | VOID | |
3446 | ); | |
3447 | ||
3448 | ||
3449 | /** | |
3450 | Disables CPU interrupts and returns the interrupt state prior to the disable | |
3451 | operation. | |
3452 | ||
3453 | Disables CPU interrupts and returns the interrupt state prior to the disable | |
3454 | operation. | |
3455 | ||
3456 | @retval TRUE CPU interrupts were enabled on entry to this call. | |
3457 | @retval FALSE CPU interrupts were disabled on entry to this call. | |
3458 | ||
3459 | **/ | |
3460 | BOOLEAN | |
3461 | EFIAPI | |
3462 | SaveAndDisableInterrupts ( | |
3463 | VOID | |
3464 | ); | |
3465 | ||
3466 | ||
3467 | /** | |
3468 | Enables CPU interrupts for the smallest window required to capture any | |
3469 | pending interrupts. | |
3470 | ||
3471 | Enables CPU interrupts for the smallest window required to capture any | |
3472 | pending interrupts. | |
3473 | ||
3474 | **/ | |
3475 | VOID | |
3476 | EFIAPI | |
3477 | EnableDisableInterrupts ( | |
3478 | VOID | |
3479 | ); | |
3480 | ||
3481 | ||
3482 | /** | |
3483 | Retrieves the current CPU interrupt state. | |
3484 | ||
3485 | Retrieves the current CPU interrupt state. Returns TRUE is interrupts are | |
3486 | currently enabled. Otherwise returns FALSE. | |
3487 | ||
3488 | @retval TRUE CPU interrupts are enabled. | |
3489 | @retval FALSE CPU interrupts are disabled. | |
3490 | ||
3491 | **/ | |
3492 | BOOLEAN | |
3493 | EFIAPI | |
3494 | GetInterruptState ( | |
3495 | VOID | |
3496 | ); | |
3497 | ||
3498 | ||
3499 | /** | |
3500 | Set the current CPU interrupt state. | |
3501 | ||
3502 | Sets the current CPU interrupt state to the state specified by | |
3503 | InterruptState. If InterruptState is TRUE, then interrupts are enabled. If | |
3504 | InterruptState is FALSE, then interrupts are disabled. InterruptState is | |
3505 | returned. | |
3506 | ||
3507 | @param InterruptState TRUE if interrupts should enabled. FALSE if | |
3508 | interrupts should be disabled. | |
3509 | ||
3510 | @return InterruptState | |
3511 | ||
3512 | **/ | |
3513 | BOOLEAN | |
3514 | EFIAPI | |
3515 | SetInterruptState ( | |
3516 | IN BOOLEAN InterruptState | |
3517 | ); | |
3518 | ||
3519 | ||
3520 | /** | |
3521 | Places the CPU in a sleep state until an interrupt is received. | |
3522 | ||
3523 | Places the CPU in a sleep state until an interrupt is received. If interrupts | |
3524 | are disabled prior to calling this function, then the CPU will be placed in a | |
3525 | sleep state indefinitely. | |
3526 | ||
3527 | **/ | |
3528 | VOID | |
3529 | EFIAPI | |
3530 | CpuSleep ( | |
3531 | VOID | |
3532 | ); | |
3533 | ||
3534 | ||
3535 | /** | |
3536 | Requests CPU to pause for a short period of time. | |
3537 | ||
3538 | Requests CPU to pause for a short period of time. Typically used in MP | |
3539 | systems to prevent memory starvation while waiting for a spin lock. | |
3540 | ||
3541 | **/ | |
3542 | VOID | |
3543 | EFIAPI | |
3544 | CpuPause ( | |
3545 | VOID | |
3546 | ); | |
3547 | ||
3548 | ||
3549 | /** | |
3550 | Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU. | |
3551 | ||
3552 | Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU. | |
3553 | ||
3554 | **/ | |
3555 | VOID | |
3556 | EFIAPI | |
3557 | CpuFlushTlb ( | |
3558 | VOID | |
3559 | ); | |
3560 | ||
3561 | ||
3562 | /** | |
3563 | Transfers control to a function starting with a new stack. | |
3564 | ||
3565 | Transfers control to the function specified by EntryPoint using the | |
3566 | new stack specified by NewStack and passing in the parameters specified | |
3567 | by Context1 and Context2. Context1 and Context2 are optional and may | |
3568 | be NULL. The function EntryPoint must never return. This function | |
3569 | supports a variable number of arguments following the NewStack parameter. | |
3570 | These additional arguments are ignored on IA-32, x64, and EBC. | |
3571 | IPF CPUs expect one additional parameter of type VOID * that specifies | |
3572 | the new backing store pointer. | |
3573 | ||
3574 | If EntryPoint is NULL, then ASSERT(). | |
3575 | If NewStack is NULL, then ASSERT(). | |
3576 | ||
3577 | @param EntryPoint A pointer to function to call with the new stack. | |
3578 | @param Context1 A pointer to the context to pass into the EntryPoint | |
3579 | function. | |
3580 | @param Context2 A pointer to the context to pass into the EntryPoint | |
3581 | function. | |
3582 | @param NewStack A pointer to the new stack to use for the EntryPoint | |
3583 | function. | |
3584 | ||
3585 | **/ | |
3586 | VOID | |
3587 | EFIAPI | |
3588 | SwitchStack ( | |
3589 | IN SWITCH_STACK_ENTRY_POINT EntryPoint, | |
3590 | IN VOID *Context1, OPTIONAL | |
3591 | IN VOID *Context2, OPTIONAL | |
3592 | IN VOID *NewStack, | |
3593 | ... | |
3594 | ); | |
3595 | ||
3596 | ||
3597 | /** | |
3598 | Generates a breakpoint on the CPU. | |
3599 | ||
3600 | Generates a breakpoint on the CPU. The breakpoint must be implemented such | |
3601 | that code can resume normal execution after the breakpoint. | |
3602 | ||
3603 | **/ | |
3604 | VOID | |
3605 | EFIAPI | |
3606 | CpuBreakpoint ( | |
3607 | VOID | |
3608 | ); | |
3609 | ||
3610 | ||
3611 | /** | |
3612 | Executes an infinite loop. | |
3613 | ||
3614 | Forces the CPU to execute an infinite loop. A debugger may be used to skip | |
3615 | past the loop and the code that follows the loop must execute properly. This | |
3616 | implies that the infinite loop must not cause the code that follow it to be | |
3617 | optimized away. | |
3618 | ||
3619 | **/ | |
3620 | VOID | |
3621 | EFIAPI | |
3622 | CpuDeadLoop ( | |
3623 | VOID | |
3624 | ); | |
3625 | ||
3626 | ||
3627 | #if defined (MDE_CPU_IPF) | |
3628 | ||
3629 | /** | |
3630 | Flush a range of cache lines in the cache coherency domain of the calling | |
3631 | CPU. | |
3632 | ||
3633 | Invalidates the cache lines specified by Address and Length. If Address is | |
3634 | not aligned on a cache line boundary, then entire cache line containing | |
3635 | Address is invalidated. If Address + Length is not aligned on a cache line | |
3636 | boundary, then the entire instruction cache line containing Address + Length | |
3637 | -1 is invalidated. This function may choose to invalidate the entire | |
3638 | instruction cache if that is more efficient than invalidating the specified | |
3639 | range. If Length is 0, the no instruction cache lines are invalidated. | |
3640 | Address is returned. | |
3641 | ||
3642 | If Length is greater than (MAX_ADDRESS - Address + 1), then ASSERT(). | |
3643 | ||
3644 | @param Address The base address of the instruction lines to invalidate. If | |
3645 | the CPU is in a physical addressing mode, then Address is a | |
3646 | physical address. If the CPU is in a virtual addressing mode, | |
3647 | then Address is a virtual address. | |
3648 | ||
3649 | @param Length The number of bytes to invalidate from the instruction cache. | |
3650 | ||
3651 | @return Address | |
3652 | ||
3653 | **/ | |
3654 | VOID * | |
3655 | EFIAPI | |
3656 | IpfFlushCacheRange ( | |
3657 | IN VOID *Address, | |
3658 | IN UINTN Length | |
3659 | ); | |
3660 | ||
3661 | ||
3662 | /** | |
3663 | Executes a FC instruction | |
3664 | Executes a FC instruction on the cache line specified by Address. | |
3665 | The cache line size affected is at least 32-bytes (aligned on a 32-byte boundary). | |
3666 | An implementation may flush a larger region. This function is only available on IPF. | |
3667 | ||
3668 | @param Address The Address of cache line to be flushed. | |
3669 | ||
3670 | @return The address of FC instruction executed. | |
3671 | ||
3672 | **/ | |
3673 | UINT64 | |
3674 | EFIAPI | |
3675 | AsmFc ( | |
3676 | IN UINT64 Address | |
3677 | ); | |
3678 | ||
3679 | ||
3680 | /** | |
3681 | Executes a FC.I instruction. | |
3682 | Executes a FC.I instruction on the cache line specified by Address. | |
3683 | The cache line size affected is at least 32-bytes (aligned on a 32-byte boundary). | |
3684 | An implementation may flush a larger region. This function is only available on IPF. | |
3685 | ||
3686 | @param Address The Address of cache line to be flushed. | |
3687 | ||
3688 | @return The address of FC.I instruction executed. | |
3689 | ||
3690 | **/ | |
3691 | UINT64 | |
3692 | EFIAPI | |
3693 | AsmFci ( | |
3694 | IN UINT64 Address | |
3695 | ); | |
3696 | ||
3697 | ||
3698 | /** | |
3699 | Reads the current value of a Processor Identifier Register (CPUID). | |
3700 | The Index of largest implemented CPUID (One less than the number of implemented CPUID | |
3701 | registers) is determined by CPUID [3] bits {7:0}. | |
3702 | No parameter checking is performed on Index. If the Index value is beyond the | |
3703 | implemented CPUID register range, a Reserved Register/Field fault may occur. The caller | |
3704 | must either guarantee that Index is valid, or the caller must set up fault handlers to | |
3705 | catch the faults. This function is only available on IPF. | |
3706 | ||
3707 | @param Index The 8-bit Processor Identifier Register index to read. | |
3708 | ||
3709 | @return The current value of Processor Identifier Register specified by Index. | |
3710 | ||
3711 | **/ | |
3712 | UINT64 | |
3713 | EFIAPI | |
3714 | AsmReadCpuid ( | |
3715 | IN UINT8 Index | |
3716 | ); | |
3717 | ||
3718 | ||
3719 | /** | |
3720 | Reads the current value of 64-bit Processor Status Register (PSR). | |
3721 | This function is only available on IPF. | |
3722 | ||
3723 | @return The current value of PSR. | |
3724 | ||
3725 | **/ | |
3726 | UINT64 | |
3727 | EFIAPI | |
3728 | AsmReadPsr ( | |
3729 | VOID | |
3730 | ); | |
3731 | ||
3732 | ||
3733 | /** | |
3734 | Writes the current value of 64-bit Processor Status Register (PSR). | |
3735 | No parameter checking is performed on Value. All bits of Value corresponding to | |
3736 | reserved fields of PSR must be 0 or a Reserved Register/Field fault may occur. The caller must either guarantee that Value is valid, or the caller must set up fault handlers to catch the faults. | |
3737 | This function is only available on IPF. | |
3738 | ||
3739 | @param Value The 64-bit value to write to PSR. | |
3740 | ||
3741 | @return The 64-bit value written to the PSR. | |
3742 | ||
3743 | **/ | |
3744 | UINT64 | |
3745 | EFIAPI | |
3746 | AsmWritePsr ( | |
3747 | IN UINT64 Value | |
3748 | ); | |
3749 | ||
3750 | ||
3751 | /** | |
3752 | Reads the current value of 64-bit Kernel Register #0 (KR0). | |
3753 | This function is only available on IPF. | |
3754 | ||
3755 | @return The current value of KR0. | |
3756 | ||
3757 | **/ | |
3758 | UINT64 | |
3759 | EFIAPI | |
3760 | AsmReadKr0 ( | |
3761 | VOID | |
3762 | ); | |
3763 | ||
3764 | ||
3765 | /** | |
3766 | Reads the current value of 64-bit Kernel Register #1 (KR1). | |
3767 | This function is only available on IPF. | |
3768 | ||
3769 | @return The current value of KR1. | |
3770 | ||
3771 | **/ | |
3772 | UINT64 | |
3773 | EFIAPI | |
3774 | AsmReadKr1 ( | |
3775 | VOID | |
3776 | ); | |
3777 | ||
3778 | ||
3779 | /** | |
3780 | Reads the current value of 64-bit Kernel Register #2 (KR2). | |
3781 | This function is only available on IPF. | |
3782 | ||
3783 | @return The current value of KR2. | |
3784 | ||
3785 | **/ | |
3786 | UINT64 | |
3787 | EFIAPI | |
3788 | AsmReadKr2 ( | |
3789 | VOID | |
3790 | ); | |
3791 | ||
3792 | ||
3793 | /** | |
3794 | Reads the current value of 64-bit Kernel Register #3 (KR3). | |
3795 | This function is only available on IPF. | |
3796 | ||
3797 | @return The current value of KR3. | |
3798 | ||
3799 | **/ | |
3800 | UINT64 | |
3801 | EFIAPI | |
3802 | AsmReadKr3 ( | |
3803 | VOID | |
3804 | ); | |
3805 | ||
3806 | ||
3807 | /** | |
3808 | Reads the current value of 64-bit Kernel Register #4 (KR4). | |
3809 | This function is only available on IPF. | |
3810 | ||
3811 | @return The current value of KR4. | |
3812 | ||
3813 | **/ | |
3814 | UINT64 | |
3815 | EFIAPI | |
3816 | AsmReadKr4 ( | |
3817 | VOID | |
3818 | ); | |
3819 | ||
3820 | ||
3821 | /** | |
3822 | Reads the current value of 64-bit Kernel Register #5 (KR5). | |
3823 | This function is only available on IPF. | |
3824 | ||
3825 | @return The current value of KR5. | |
3826 | ||
3827 | **/ | |
3828 | UINT64 | |
3829 | EFIAPI | |
3830 | AsmReadKr5 ( | |
3831 | VOID | |
3832 | ); | |
3833 | ||
3834 | ||
3835 | /** | |
3836 | Reads the current value of 64-bit Kernel Register #6 (KR6). | |
3837 | This function is only available on IPF. | |
3838 | ||
3839 | @return The current value of KR6. | |
3840 | ||
3841 | **/ | |
3842 | UINT64 | |
3843 | EFIAPI | |
3844 | AsmReadKr6 ( | |
3845 | VOID | |
3846 | ); | |
3847 | ||
3848 | ||
3849 | /** | |
3850 | Reads the current value of 64-bit Kernel Register #7 (KR7). | |
3851 | This function is only available on IPF. | |
3852 | ||
3853 | @return The current value of KR7. | |
3854 | ||
3855 | **/ | |
3856 | UINT64 | |
3857 | EFIAPI | |
3858 | AsmReadKr7 ( | |
3859 | VOID | |
3860 | ); | |
3861 | ||
3862 | ||
3863 | /** | |
3864 | Write the current value of 64-bit Kernel Register #0 (KR0). | |
3865 | This function is only available on IPF. | |
3866 | ||
3867 | @param Value The 64-bit value to write to KR0. | |
3868 | ||
3869 | @return The 64-bit value written to the KR0. | |
3870 | ||
3871 | **/ | |
3872 | UINT64 | |
3873 | EFIAPI | |
3874 | AsmWriteKr0 ( | |
3875 | IN UINT64 Value | |
3876 | ); | |
3877 | ||
3878 | ||
3879 | /** | |
3880 | Write the current value of 64-bit Kernel Register #1 (KR1). | |
3881 | This function is only available on IPF. | |
3882 | ||
3883 | @param Value The 64-bit value to write to KR1. | |
3884 | ||
3885 | @return The 64-bit value written to the KR1. | |
3886 | ||
3887 | **/ | |
3888 | UINT64 | |
3889 | EFIAPI | |
3890 | AsmWriteKr1 ( | |
3891 | IN UINT64 Value | |
3892 | ); | |
3893 | ||
3894 | ||
3895 | /** | |
3896 | Write the current value of 64-bit Kernel Register #2 (KR2). | |
3897 | This function is only available on IPF. | |
3898 | ||
3899 | @param Value The 64-bit value to write to KR2. | |
3900 | ||
3901 | @return The 64-bit value written to the KR2. | |
3902 | ||
3903 | **/ | |
3904 | UINT64 | |
3905 | EFIAPI | |
3906 | AsmWriteKr2 ( | |
3907 | IN UINT64 Value | |
3908 | ); | |
3909 | ||
3910 | ||
3911 | /** | |
3912 | Write the current value of 64-bit Kernel Register #3 (KR3). | |
3913 | This function is only available on IPF. | |
3914 | ||
3915 | @param Value The 64-bit value to write to KR3. | |
3916 | ||
3917 | @return The 64-bit value written to the KR3. | |
3918 | ||
3919 | **/ | |
3920 | UINT64 | |
3921 | EFIAPI | |
3922 | AsmWriteKr3 ( | |
3923 | IN UINT64 Value | |
3924 | ); | |
3925 | ||
3926 | ||
3927 | /** | |
3928 | Write the current value of 64-bit Kernel Register #4 (KR4). | |
3929 | This function is only available on IPF. | |
3930 | ||
3931 | @param Value The 64-bit value to write to KR4. | |
3932 | ||
3933 | @return The 64-bit value written to the KR4. | |
3934 | ||
3935 | **/ | |
3936 | UINT64 | |
3937 | EFIAPI | |
3938 | AsmWriteKr4 ( | |
3939 | IN UINT64 Value | |
3940 | ); | |
3941 | ||
3942 | ||
3943 | /** | |
3944 | Write the current value of 64-bit Kernel Register #5 (KR5). | |
3945 | This function is only available on IPF. | |
3946 | ||
3947 | @param Value The 64-bit value to write to KR5. | |
3948 | ||
3949 | @return The 64-bit value written to the KR5. | |
3950 | ||
3951 | **/ | |
3952 | UINT64 | |
3953 | EFIAPI | |
3954 | AsmWriteKr5 ( | |
3955 | IN UINT64 Value | |
3956 | ); | |
3957 | ||
3958 | ||
3959 | /** | |
3960 | Write the current value of 64-bit Kernel Register #6 (KR6). | |
3961 | This function is only available on IPF. | |
3962 | ||
3963 | @param Value The 64-bit value to write to KR6. | |
3964 | ||
3965 | @return The 64-bit value written to the KR6. | |
3966 | ||
3967 | **/ | |
3968 | UINT64 | |
3969 | EFIAPI | |
3970 | AsmWriteKr6 ( | |
3971 | IN UINT64 Value | |
3972 | ); | |
3973 | ||
3974 | ||
3975 | /** | |
3976 | Write the current value of 64-bit Kernel Register #7 (KR7). | |
3977 | This function is only available on IPF. | |
3978 | ||
3979 | @param Value The 64-bit value to write to KR7. | |
3980 | ||
3981 | @return The 64-bit value written to the KR7. | |
3982 | ||
3983 | **/ | |
3984 | UINT64 | |
3985 | EFIAPI | |
3986 | AsmWriteKr7 ( | |
3987 | IN UINT64 Value | |
3988 | ); | |
3989 | ||
3990 | ||
3991 | /** | |
3992 | Reads the current value of Interval Timer Counter Register (ITC). | |
3993 | This function is only available on IPF. | |
3994 | ||
3995 | @return The current value of ITC. | |
3996 | ||
3997 | **/ | |
3998 | UINT64 | |
3999 | EFIAPI | |
4000 | AsmReadItc ( | |
4001 | VOID | |
4002 | ); | |
4003 | ||
4004 | ||
4005 | /** | |
4006 | Reads the current value of Interval Timer Vector Register (ITV). | |
4007 | This function is only available on IPF. | |
4008 | ||
4009 | @return The current value of ITV. | |
4010 | ||
4011 | **/ | |
4012 | UINT64 | |
4013 | EFIAPI | |
4014 | AsmReadItv ( | |
4015 | VOID | |
4016 | ); | |
4017 | ||
4018 | ||
4019 | /** | |
4020 | Reads the current value of Interval Timer Match Register (ITM). | |
4021 | This function is only available on IPF. | |
4022 | ||
4023 | @return The current value of ITM. | |
4024 | **/ | |
4025 | UINT64 | |
4026 | EFIAPI | |
4027 | AsmReadItm ( | |
4028 | VOID | |
4029 | ); | |
4030 | ||
4031 | ||
4032 | /** | |
4033 | Writes the current value of 64-bit Interval Timer Counter Register (ITC). | |
4034 | This function is only available on IPF. | |
4035 | ||
4036 | @param Value The 64-bit value to write to ITC. | |
4037 | ||
4038 | @return The 64-bit value written to the ITC. | |
4039 | ||
4040 | **/ | |
4041 | UINT64 | |
4042 | EFIAPI | |
4043 | AsmWriteItc ( | |
4044 | IN UINT64 Value | |
4045 | ); | |
4046 | ||
4047 | ||
4048 | /** | |
4049 | Writes the current value of 64-bit Interval Timer Match Register (ITM). | |
4050 | This function is only available on IPF. | |
4051 | ||
4052 | @param Value The 64-bit value to write to ITM. | |
4053 | ||
4054 | @return The 64-bit value written to the ITM. | |
4055 | ||
4056 | **/ | |
4057 | UINT64 | |
4058 | EFIAPI | |
4059 | AsmWriteItm ( | |
4060 | IN UINT64 Value | |
4061 | ); | |
4062 | ||
4063 | ||
4064 | /** | |
4065 | Writes the current value of 64-bit Interval Timer Vector Register (ITV). | |
4066 | No parameter checking is performed on Value. All bits of Value corresponding to | |
4067 | reserved fields of ITV must be 0 or a Reserved Register/Field fault may occur. | |
4068 | The caller must either guarantee that Value is valid, or the caller must set up | |
4069 | fault handlers to catch the faults. | |
4070 | This function is only available on IPF. | |
4071 | ||
4072 | @param Value The 64-bit value to write to ITV. | |
4073 | ||
4074 | @return The 64-bit value written to the ITV. | |
4075 | ||
4076 | **/ | |
4077 | UINT64 | |
4078 | EFIAPI | |
4079 | AsmWriteItv ( | |
4080 | IN UINT64 Value | |
4081 | ); | |
4082 | ||
4083 | ||
4084 | /** | |
4085 | Reads the current value of Default Control Register (DCR). | |
4086 | This function is only available on IPF. | |
4087 | ||
4088 | @return The current value of DCR. | |
4089 | ||
4090 | **/ | |
4091 | UINT64 | |
4092 | EFIAPI | |
4093 | AsmReadDcr ( | |
4094 | VOID | |
4095 | ); | |
4096 | ||
4097 | ||
4098 | /** | |
4099 | Reads the current value of Interruption Vector Address Register (IVA). | |
4100 | This function is only available on IPF. | |
4101 | ||
4102 | @return The current value of IVA. | |
4103 | **/ | |
4104 | UINT64 | |
4105 | EFIAPI | |
4106 | AsmReadIva ( | |
4107 | VOID | |
4108 | ); | |
4109 | ||
4110 | ||
4111 | /** | |
4112 | Reads the current value of Page Table Address Register (PTA). | |
4113 | This function is only available on IPF. | |
4114 | ||
4115 | @return The current value of PTA. | |
4116 | ||
4117 | **/ | |
4118 | UINT64 | |
4119 | EFIAPI | |
4120 | AsmReadPta ( | |
4121 | VOID | |
4122 | ); | |
4123 | ||
4124 | ||
4125 | /** | |
4126 | Writes the current value of 64-bit Default Control Register (DCR). | |
4127 | No parameter checking is performed on Value. All bits of Value corresponding to | |
4128 | reserved fields of DCR must be 0 or a Reserved Register/Field fault may occur. | |
4129 | The caller must either guarantee that Value is valid, or the caller must set up | |
4130 | fault handlers to catch the faults. | |
4131 | This function is only available on IPF. | |
4132 | ||
4133 | @param Value The 64-bit value to write to DCR. | |
4134 | ||
4135 | @return The 64-bit value written to the DCR. | |
4136 | ||
4137 | **/ | |
4138 | UINT64 | |
4139 | EFIAPI | |
4140 | AsmWriteDcr ( | |
4141 | IN UINT64 Value | |
4142 | ); | |
4143 | ||
4144 | ||
4145 | /** | |
4146 | Writes the current value of 64-bit Interruption Vector Address Register (IVA). | |
4147 | The size of vector table is 32 K bytes and is 32 K bytes aligned | |
4148 | the low 15 bits of Value is ignored when written. | |
4149 | This function is only available on IPF. | |
4150 | ||
4151 | @param Value The 64-bit value to write to IVA. | |
4152 | ||
4153 | @return The 64-bit value written to the IVA. | |
4154 | ||
4155 | **/ | |
4156 | UINT64 | |
4157 | EFIAPI | |
4158 | AsmWriteIva ( | |
4159 | IN UINT64 Value | |
4160 | ); | |
4161 | ||
4162 | ||
4163 | /** | |
4164 | Writes the current value of 64-bit Page Table Address Register (PTA). | |
4165 | No parameter checking is performed on Value. All bits of Value corresponding to | |
4166 | reserved fields of DCR must be 0 or a Reserved Register/Field fault may occur. | |
4167 | The caller must either guarantee that Value is valid, or the caller must set up | |
4168 | fault handlers to catch the faults. | |
4169 | This function is only available on IPF. | |
4170 | ||
4171 | @param Value The 64-bit value to write to PTA. | |
4172 | ||
4173 | @return The 64-bit value written to the PTA. | |
4174 | **/ | |
4175 | UINT64 | |
4176 | EFIAPI | |
4177 | AsmWritePta ( | |
4178 | IN UINT64 Value | |
4179 | ); | |
4180 | ||
4181 | ||
4182 | /** | |
4183 | Reads the current value of Local Interrupt ID Register (LID). | |
4184 | This function is only available on IPF. | |
4185 | ||
4186 | @return The current value of LID. | |
4187 | ||
4188 | **/ | |
4189 | UINT64 | |
4190 | EFIAPI | |
4191 | AsmReadLid ( | |
4192 | VOID | |
4193 | ); | |
4194 | ||
4195 | ||
4196 | /** | |
4197 | Reads the current value of External Interrupt Vector Register (IVR). | |
4198 | This function is only available on IPF. | |
4199 | ||
4200 | @return The current value of IVR. | |
4201 | ||
4202 | **/ | |
4203 | UINT64 | |
4204 | EFIAPI | |
4205 | AsmReadIvr ( | |
4206 | VOID | |
4207 | ); | |
4208 | ||
4209 | ||
4210 | /** | |
4211 | Reads the current value of Task Priority Register (TPR). | |
4212 | This function is only available on IPF. | |
4213 | ||
4214 | @return The current value of TPR. | |
4215 | ||
4216 | **/ | |
4217 | UINT64 | |
4218 | EFIAPI | |
4219 | AsmReadTpr ( | |
4220 | VOID | |
4221 | ); | |
4222 | ||
4223 | ||
4224 | /** | |
4225 | Reads the current value of External Interrupt Request Register #0 (IRR0). | |
4226 | This function is only available on IPF. | |
4227 | ||
4228 | @return The current value of IRR0. | |
4229 | ||
4230 | **/ | |
4231 | UINT64 | |
4232 | EFIAPI | |
4233 | AsmReadIrr0 ( | |
4234 | VOID | |
4235 | ); | |
4236 | ||
4237 | ||
4238 | /** | |
4239 | Reads the current value of External Interrupt Request Register #1 (IRR1). | |
4240 | This function is only available on IPF. | |
4241 | ||
4242 | @return The current value of IRR1. | |
4243 | ||
4244 | **/ | |
4245 | UINT64 | |
4246 | EFIAPI | |
4247 | AsmReadIrr1 ( | |
4248 | VOID | |
4249 | ); | |
4250 | ||
4251 | ||
4252 | /** | |
4253 | Reads the current value of External Interrupt Request Register #2 (IRR2). | |
4254 | This function is only available on IPF. | |
4255 | ||
4256 | @return The current value of IRR2. | |
4257 | ||
4258 | **/ | |
4259 | UINT64 | |
4260 | EFIAPI | |
4261 | AsmReadIrr2 ( | |
4262 | VOID | |
4263 | ); | |
4264 | ||
4265 | ||
4266 | /** | |
4267 | Reads the current value of External Interrupt Request Register #3 (IRR3). | |
4268 | This function is only available on IPF. | |
4269 | ||
4270 | @return The current value of IRR3. | |
4271 | ||
4272 | **/ | |
4273 | UINT64 | |
4274 | EFIAPI | |
4275 | AsmReadIrr3 ( | |
4276 | VOID | |
4277 | ); | |
4278 | ||
4279 | ||
4280 | /** | |
4281 | Reads the current value of Performance Monitor Vector Register (PMV). | |
4282 | This function is only available on IPF. | |
4283 | ||
4284 | @return The current value of PMV. | |
4285 | ||
4286 | **/ | |
4287 | UINT64 | |
4288 | EFIAPI | |
4289 | AsmReadPmv ( | |
4290 | VOID | |
4291 | ); | |
4292 | ||
4293 | ||
4294 | /** | |
4295 | Reads the current value of Corrected Machine Check Vector Register (CMCV). | |
4296 | This function is only available on IPF. | |
4297 | ||
4298 | @return The current value of CMCV. | |
4299 | ||
4300 | **/ | |
4301 | UINT64 | |
4302 | EFIAPI | |
4303 | AsmReadCmcv ( | |
4304 | VOID | |
4305 | ); | |
4306 | ||
4307 | ||
4308 | /** | |
4309 | Reads the current value of Local Redirection Register #0 (LRR0). | |
4310 | This function is only available on IPF. | |
4311 | ||
4312 | @return The current value of LRR0. | |
4313 | ||
4314 | **/ | |
4315 | UINT64 | |
4316 | EFIAPI | |
4317 | AsmReadLrr0 ( | |
4318 | VOID | |
4319 | ); | |
4320 | ||
4321 | ||
4322 | /** | |
4323 | Reads the current value of Local Redirection Register #1 (LRR1). | |
4324 | This function is only available on IPF. | |
4325 | ||
4326 | @return The current value of LRR1. | |
4327 | ||
4328 | **/ | |
4329 | UINT64 | |
4330 | EFIAPI | |
4331 | AsmReadLrr1 ( | |
4332 | VOID | |
4333 | ); | |
4334 | ||
4335 | ||
4336 | /** | |
4337 | Writes the current value of 64-bit Page Local Interrupt ID Register (LID). | |
4338 | No parameter checking is performed on Value. All bits of Value corresponding to | |
4339 | reserved fields of LID must be 0 or a Reserved Register/Field fault may occur. | |
4340 | The caller must either guarantee that Value is valid, or the caller must set up | |
4341 | fault handlers to catch the faults. | |
4342 | This function is only available on IPF. | |
4343 | ||
4344 | @param Value The 64-bit value to write to LID. | |
4345 | ||
4346 | @return The 64-bit value written to the LID. | |
4347 | ||
4348 | **/ | |
4349 | UINT64 | |
4350 | EFIAPI | |
4351 | AsmWriteLid ( | |
4352 | IN UINT64 Value | |
4353 | ); | |
4354 | ||
4355 | ||
4356 | /** | |
4357 | Writes the current value of 64-bit Task Priority Register (TPR). | |
4358 | No parameter checking is performed on Value. All bits of Value corresponding to | |
4359 | reserved fields of TPR must be 0 or a Reserved Register/Field fault may occur. | |
4360 | The caller must either guarantee that Value is valid, or the caller must set up | |
4361 | fault handlers to catch the faults. | |
4362 | This function is only available on IPF. | |
4363 | ||
4364 | @param Value The 64-bit value to write to TPR. | |
4365 | ||
4366 | @return The 64-bit value written to the TPR. | |
4367 | ||
4368 | **/ | |
4369 | UINT64 | |
4370 | EFIAPI | |
4371 | AsmWriteTpr ( | |
4372 | IN UINT64 Value | |
4373 | ); | |
4374 | ||
4375 | ||
4376 | /** | |
4377 | Performs a write operation on End OF External Interrupt Register (EOI). | |
4378 | Writes a value of 0 to the EOI Register. This function is only available on IPF. | |
4379 | ||
4380 | **/ | |
4381 | VOID | |
4382 | EFIAPI | |
4383 | AsmWriteEoi ( | |
4384 | VOID | |
4385 | ); | |
4386 | ||
4387 | ||
4388 | /** | |
4389 | Writes the current value of 64-bit Performance Monitor Vector Register (PMV). | |
4390 | No parameter checking is performed on Value. All bits of Value corresponding | |
4391 | to reserved fields of PMV must be 0 or a Reserved Register/Field fault may occur. | |
4392 | The caller must either guarantee that Value is valid, or the caller must set up | |
4393 | fault handlers to catch the faults. | |
4394 | This function is only available on IPF. | |
4395 | ||
4396 | @param Value The 64-bit value to write to PMV. | |
4397 | ||
4398 | @return The 64-bit value written to the PMV. | |
4399 | ||
4400 | **/ | |
4401 | UINT64 | |
4402 | EFIAPI | |
4403 | AsmWritePmv ( | |
4404 | IN UINT64 Value | |
4405 | ); | |
4406 | ||
4407 | ||
4408 | /** | |
4409 | Writes the current value of 64-bit Corrected Machine Check Vector Register (CMCV). | |
4410 | No parameter checking is performed on Value. All bits of Value corresponding | |
4411 | to reserved fields of CMCV must be 0 or a Reserved Register/Field fault may occur. | |
4412 | The caller must either guarantee that Value is valid, or the caller must set up | |
4413 | fault handlers to catch the faults. | |
4414 | This function is only available on IPF. | |
4415 | ||
4416 | @param Value The 64-bit value to write to CMCV. | |
4417 | ||
4418 | @return The 64-bit value written to the CMCV. | |
4419 | ||
4420 | **/ | |
4421 | UINT64 | |
4422 | EFIAPI | |
4423 | AsmWriteCmcv ( | |
4424 | IN UINT64 Value | |
4425 | ); | |
4426 | ||
4427 | ||
4428 | /** | |
4429 | Writes the current value of 64-bit Local Redirection Register #0 (LRR0). | |
4430 | No parameter checking is performed on Value. All bits of Value corresponding | |
4431 | to reserved fields of LRR0 must be 0 or a Reserved Register/Field fault may occur. | |
4432 | The caller must either guarantee that Value is valid, or the caller must set up | |
4433 | fault handlers to catch the faults. | |
4434 | This function is only available on IPF. | |
4435 | ||
4436 | @param Value The 64-bit value to write to LRR0. | |
4437 | ||
4438 | @return The 64-bit value written to the LRR0. | |
4439 | ||
4440 | **/ | |
4441 | UINT64 | |
4442 | EFIAPI | |
4443 | AsmWriteLrr0 ( | |
4444 | IN UINT64 Value | |
4445 | ); | |
4446 | ||
4447 | ||
4448 | /** | |
4449 | Writes the current value of 64-bit Local Redirection Register #1 (LRR1). | |
4450 | No parameter checking is performed on Value. All bits of Value corresponding | |
4451 | to reserved fields of LRR1 must be 0 or a Reserved Register/Field fault may occur. | |
4452 | The caller must either guarantee that Value is valid, or the caller must | |
4453 | set up fault handlers to catch the faults. | |
4454 | This function is only available on IPF. | |
4455 | ||
4456 | @param Value The 64-bit value to write to LRR1. | |
4457 | ||
4458 | @return The 64-bit value written to the LRR1. | |
4459 | ||
4460 | **/ | |
4461 | UINT64 | |
4462 | EFIAPI | |
4463 | AsmWriteLrr1 ( | |
4464 | IN UINT64 Value | |
4465 | ); | |
4466 | ||
4467 | ||
4468 | /** | |
4469 | Reads the current value of Instruction Breakpoint Register (IBR). | |
4470 | ||
4471 | The Instruction Breakpoint Registers are used in pairs. The even numbered | |
4472 | registers contain breakpoint addresses, and the odd numbered registers contain | |
4473 | breakpoint mask conditions. At least 4 instruction registers pairs are implemented | |
4474 | on all processor models. Implemented registers are contiguous starting with | |
4475 | register 0. No parameter checking is performed on Index, and if the Index value | |
4476 | is beyond the implemented IBR register range, a Reserved Register/Field fault may | |
4477 | occur. The caller must either guarantee that Index is valid, or the caller must | |
4478 | set up fault handlers to catch the faults. | |
4479 | This function is only available on IPF. | |
4480 | ||
4481 | @param Index The 8-bit Instruction Breakpoint Register index to read. | |
4482 | ||
4483 | @return The current value of Instruction Breakpoint Register specified by Index. | |
4484 | ||
4485 | **/ | |
4486 | UINT64 | |
4487 | EFIAPI | |
4488 | AsmReadIbr ( | |
4489 | IN UINT8 Index | |
4490 | ); | |
4491 | ||
4492 | ||
4493 | /** | |
4494 | Reads the current value of Data Breakpoint Register (DBR). | |
4495 | ||
4496 | The Data Breakpoint Registers are used in pairs. The even numbered registers | |
4497 | contain breakpoint addresses, and odd numbered registers contain breakpoint | |
4498 | mask conditions. At least 4 data registers pairs are implemented on all processor | |
4499 | models. Implemented registers are contiguous starting with register 0. | |
4500 | No parameter checking is performed on Index. If the Index value is beyond | |
4501 | the implemented DBR register range, a Reserved Register/Field fault may occur. | |
4502 | The caller must either guarantee that Index is valid, or the caller must set up | |
4503 | fault handlers to catch the faults. | |
4504 | This function is only available on IPF. | |
4505 | ||
4506 | @param Index The 8-bit Data Breakpoint Register index to read. | |
4507 | ||
4508 | @return The current value of Data Breakpoint Register specified by Index. | |
4509 | ||
4510 | **/ | |
4511 | UINT64 | |
4512 | EFIAPI | |
4513 | AsmReadDbr ( | |
4514 | IN UINT8 Index | |
4515 | ); | |
4516 | ||
4517 | ||
4518 | /** | |
4519 | Reads the current value of Performance Monitor Configuration Register (PMC). | |
4520 | ||
4521 | All processor implementations provide at least 4 performance counters | |
4522 | (PMC/PMD [4]...PMC/PMD [7] pairs), and 4 performance monitor counter overflow | |
4523 |