utclib.c revision 1.1.1.4 1 1.1 jruoho /******************************************************************************
2 1.1 jruoho *
3 1.1 jruoho * Module Name: cmclib - Local implementation of C library functions
4 1.1 jruoho *
5 1.1 jruoho *****************************************************************************/
6 1.1 jruoho
7 1.1.1.2 jruoho /*
8 1.1.1.4 christos * Copyright (C) 2000 - 2014, Intel Corp.
9 1.1 jruoho * All rights reserved.
10 1.1 jruoho *
11 1.1.1.2 jruoho * Redistribution and use in source and binary forms, with or without
12 1.1.1.2 jruoho * modification, are permitted provided that the following conditions
13 1.1.1.2 jruoho * are met:
14 1.1.1.2 jruoho * 1. Redistributions of source code must retain the above copyright
15 1.1.1.2 jruoho * notice, this list of conditions, and the following disclaimer,
16 1.1.1.2 jruoho * without modification.
17 1.1.1.2 jruoho * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 1.1.1.2 jruoho * substantially similar to the "NO WARRANTY" disclaimer below
19 1.1.1.2 jruoho * ("Disclaimer") and any redistribution must be conditioned upon
20 1.1.1.2 jruoho * including a substantially similar Disclaimer requirement for further
21 1.1.1.2 jruoho * binary redistribution.
22 1.1.1.2 jruoho * 3. Neither the names of the above-listed copyright holders nor the names
23 1.1.1.2 jruoho * of any contributors may be used to endorse or promote products derived
24 1.1.1.2 jruoho * from this software without specific prior written permission.
25 1.1.1.2 jruoho *
26 1.1.1.2 jruoho * Alternatively, this software may be distributed under the terms of the
27 1.1.1.2 jruoho * GNU General Public License ("GPL") version 2 as published by the Free
28 1.1.1.2 jruoho * Software Foundation.
29 1.1.1.2 jruoho *
30 1.1.1.2 jruoho * NO WARRANTY
31 1.1.1.2 jruoho * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 1.1.1.2 jruoho * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 1.1.1.2 jruoho * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 1.1.1.2 jruoho * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 1.1.1.2 jruoho * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 1.1.1.2 jruoho * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 1.1.1.2 jruoho * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 1.1.1.2 jruoho * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 1.1.1.2 jruoho * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 1.1.1.2 jruoho * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 1.1.1.2 jruoho * POSSIBILITY OF SUCH DAMAGES.
42 1.1.1.2 jruoho */
43 1.1 jruoho
44 1.1 jruoho #define __CMCLIB_C__
45 1.1 jruoho
46 1.1 jruoho #include "acpi.h"
47 1.1 jruoho #include "accommon.h"
48 1.1 jruoho
49 1.1 jruoho /*
50 1.1 jruoho * These implementations of standard C Library routines can optionally be
51 1.1.1.3 christos * used if a C library is not available. In general, they are less efficient
52 1.1 jruoho * than an inline or assembly implementation
53 1.1 jruoho */
54 1.1 jruoho
55 1.1 jruoho #define _COMPONENT ACPI_UTILITIES
56 1.1 jruoho ACPI_MODULE_NAME ("cmclib")
57 1.1 jruoho
58 1.1 jruoho
59 1.1 jruoho #ifndef ACPI_USE_SYSTEM_CLIBRARY
60 1.1 jruoho
61 1.1 jruoho #define NEGATIVE 1
62 1.1 jruoho #define POSITIVE 0
63 1.1 jruoho
64 1.1 jruoho
65 1.1 jruoho /*******************************************************************************
66 1.1 jruoho *
67 1.1 jruoho * FUNCTION: AcpiUtMemcmp (memcmp)
68 1.1 jruoho *
69 1.1 jruoho * PARAMETERS: Buffer1 - First Buffer
70 1.1 jruoho * Buffer2 - Second Buffer
71 1.1 jruoho * Count - Maximum # of bytes to compare
72 1.1 jruoho *
73 1.1 jruoho * RETURN: Index where Buffers mismatched, or 0 if Buffers matched
74 1.1 jruoho *
75 1.1 jruoho * DESCRIPTION: Compare two Buffers, with a maximum length
76 1.1 jruoho *
77 1.1 jruoho ******************************************************************************/
78 1.1 jruoho
79 1.1 jruoho int
80 1.1 jruoho AcpiUtMemcmp (
81 1.1 jruoho const char *Buffer1,
82 1.1 jruoho const char *Buffer2,
83 1.1 jruoho ACPI_SIZE Count)
84 1.1 jruoho {
85 1.1 jruoho
86 1.1 jruoho for ( ; Count-- && (*Buffer1 == *Buffer2); Buffer1++, Buffer2++)
87 1.1 jruoho {
88 1.1 jruoho }
89 1.1 jruoho
90 1.1 jruoho return ((Count == ACPI_SIZE_MAX) ? 0 : ((unsigned char) *Buffer1 -
91 1.1 jruoho (unsigned char) *Buffer2));
92 1.1 jruoho }
93 1.1 jruoho
94 1.1 jruoho
95 1.1 jruoho /*******************************************************************************
96 1.1 jruoho *
97 1.1 jruoho * FUNCTION: AcpiUtMemcpy (memcpy)
98 1.1 jruoho *
99 1.1 jruoho * PARAMETERS: Dest - Target of the copy
100 1.1 jruoho * Src - Source buffer to copy
101 1.1 jruoho * Count - Number of bytes to copy
102 1.1 jruoho *
103 1.1 jruoho * RETURN: Dest
104 1.1 jruoho *
105 1.1 jruoho * DESCRIPTION: Copy arbitrary bytes of memory
106 1.1 jruoho *
107 1.1 jruoho ******************************************************************************/
108 1.1 jruoho
109 1.1 jruoho void *
110 1.1 jruoho AcpiUtMemcpy (
111 1.1 jruoho void *Dest,
112 1.1 jruoho const void *Src,
113 1.1 jruoho ACPI_SIZE Count)
114 1.1 jruoho {
115 1.1 jruoho char *New = (char *) Dest;
116 1.1 jruoho char *Old = (char *) Src;
117 1.1 jruoho
118 1.1 jruoho
119 1.1 jruoho while (Count)
120 1.1 jruoho {
121 1.1 jruoho *New = *Old;
122 1.1 jruoho New++;
123 1.1 jruoho Old++;
124 1.1 jruoho Count--;
125 1.1 jruoho }
126 1.1 jruoho
127 1.1 jruoho return (Dest);
128 1.1 jruoho }
129 1.1 jruoho
130 1.1 jruoho
131 1.1 jruoho /*******************************************************************************
132 1.1 jruoho *
133 1.1 jruoho * FUNCTION: AcpiUtMemset (memset)
134 1.1 jruoho *
135 1.1 jruoho * PARAMETERS: Dest - Buffer to set
136 1.1 jruoho * Value - Value to set each byte of memory
137 1.1 jruoho * Count - Number of bytes to set
138 1.1 jruoho *
139 1.1 jruoho * RETURN: Dest
140 1.1 jruoho *
141 1.1 jruoho * DESCRIPTION: Initialize a buffer to a known value.
142 1.1 jruoho *
143 1.1 jruoho ******************************************************************************/
144 1.1 jruoho
145 1.1 jruoho void *
146 1.1 jruoho AcpiUtMemset (
147 1.1 jruoho void *Dest,
148 1.1 jruoho UINT8 Value,
149 1.1 jruoho ACPI_SIZE Count)
150 1.1 jruoho {
151 1.1 jruoho char *New = (char *) Dest;
152 1.1 jruoho
153 1.1 jruoho
154 1.1 jruoho while (Count)
155 1.1 jruoho {
156 1.1 jruoho *New = (char) Value;
157 1.1 jruoho New++;
158 1.1 jruoho Count--;
159 1.1 jruoho }
160 1.1 jruoho
161 1.1 jruoho return (Dest);
162 1.1 jruoho }
163 1.1 jruoho
164 1.1 jruoho
165 1.1 jruoho /*******************************************************************************
166 1.1 jruoho *
167 1.1 jruoho * FUNCTION: AcpiUtStrlen (strlen)
168 1.1 jruoho *
169 1.1 jruoho * PARAMETERS: String - Null terminated string
170 1.1 jruoho *
171 1.1 jruoho * RETURN: Length
172 1.1 jruoho *
173 1.1 jruoho * DESCRIPTION: Returns the length of the input string
174 1.1 jruoho *
175 1.1 jruoho ******************************************************************************/
176 1.1 jruoho
177 1.1 jruoho
178 1.1 jruoho ACPI_SIZE
179 1.1 jruoho AcpiUtStrlen (
180 1.1 jruoho const char *String)
181 1.1 jruoho {
182 1.1 jruoho UINT32 Length = 0;
183 1.1 jruoho
184 1.1 jruoho
185 1.1 jruoho /* Count the string until a null is encountered */
186 1.1 jruoho
187 1.1 jruoho while (*String)
188 1.1 jruoho {
189 1.1 jruoho Length++;
190 1.1 jruoho String++;
191 1.1 jruoho }
192 1.1 jruoho
193 1.1 jruoho return (Length);
194 1.1 jruoho }
195 1.1 jruoho
196 1.1 jruoho
197 1.1 jruoho /*******************************************************************************
198 1.1 jruoho *
199 1.1 jruoho * FUNCTION: AcpiUtStrcpy (strcpy)
200 1.1 jruoho *
201 1.1 jruoho * PARAMETERS: DstString - Target of the copy
202 1.1 jruoho * SrcString - The source string to copy
203 1.1 jruoho *
204 1.1 jruoho * RETURN: DstString
205 1.1 jruoho *
206 1.1 jruoho * DESCRIPTION: Copy a null terminated string
207 1.1 jruoho *
208 1.1 jruoho ******************************************************************************/
209 1.1 jruoho
210 1.1 jruoho char *
211 1.1 jruoho AcpiUtStrcpy (
212 1.1 jruoho char *DstString,
213 1.1 jruoho const char *SrcString)
214 1.1 jruoho {
215 1.1 jruoho char *String = DstString;
216 1.1 jruoho
217 1.1 jruoho
218 1.1 jruoho /* Move bytes brute force */
219 1.1 jruoho
220 1.1 jruoho while (*SrcString)
221 1.1 jruoho {
222 1.1 jruoho *String = *SrcString;
223 1.1 jruoho
224 1.1 jruoho String++;
225 1.1 jruoho SrcString++;
226 1.1 jruoho }
227 1.1 jruoho
228 1.1 jruoho /* Null terminate */
229 1.1 jruoho
230 1.1 jruoho *String = 0;
231 1.1 jruoho return (DstString);
232 1.1 jruoho }
233 1.1 jruoho
234 1.1 jruoho
235 1.1 jruoho /*******************************************************************************
236 1.1 jruoho *
237 1.1 jruoho * FUNCTION: AcpiUtStrncpy (strncpy)
238 1.1 jruoho *
239 1.1 jruoho * PARAMETERS: DstString - Target of the copy
240 1.1 jruoho * SrcString - The source string to copy
241 1.1 jruoho * Count - Maximum # of bytes to copy
242 1.1 jruoho *
243 1.1 jruoho * RETURN: DstString
244 1.1 jruoho *
245 1.1 jruoho * DESCRIPTION: Copy a null terminated string, with a maximum length
246 1.1 jruoho *
247 1.1 jruoho ******************************************************************************/
248 1.1 jruoho
249 1.1 jruoho char *
250 1.1 jruoho AcpiUtStrncpy (
251 1.1 jruoho char *DstString,
252 1.1 jruoho const char *SrcString,
253 1.1 jruoho ACPI_SIZE Count)
254 1.1 jruoho {
255 1.1 jruoho char *String = DstString;
256 1.1 jruoho
257 1.1 jruoho
258 1.1 jruoho /* Copy the string */
259 1.1 jruoho
260 1.1 jruoho for (String = DstString;
261 1.1 jruoho Count && (Count--, (*String++ = *SrcString++)); )
262 1.1 jruoho {;}
263 1.1 jruoho
264 1.1 jruoho /* Pad with nulls if necessary */
265 1.1 jruoho
266 1.1 jruoho while (Count--)
267 1.1 jruoho {
268 1.1 jruoho *String = 0;
269 1.1 jruoho String++;
270 1.1 jruoho }
271 1.1 jruoho
272 1.1 jruoho /* Return original pointer */
273 1.1 jruoho
274 1.1 jruoho return (DstString);
275 1.1 jruoho }
276 1.1 jruoho
277 1.1 jruoho
278 1.1 jruoho /*******************************************************************************
279 1.1 jruoho *
280 1.1 jruoho * FUNCTION: AcpiUtStrcmp (strcmp)
281 1.1 jruoho *
282 1.1 jruoho * PARAMETERS: String1 - First string
283 1.1 jruoho * String2 - Second string
284 1.1 jruoho *
285 1.1 jruoho * RETURN: Index where strings mismatched, or 0 if strings matched
286 1.1 jruoho *
287 1.1 jruoho * DESCRIPTION: Compare two null terminated strings
288 1.1 jruoho *
289 1.1 jruoho ******************************************************************************/
290 1.1 jruoho
291 1.1 jruoho int
292 1.1 jruoho AcpiUtStrcmp (
293 1.1 jruoho const char *String1,
294 1.1 jruoho const char *String2)
295 1.1 jruoho {
296 1.1 jruoho
297 1.1 jruoho
298 1.1 jruoho for ( ; (*String1 == *String2); String2++)
299 1.1 jruoho {
300 1.1 jruoho if (!*String1++)
301 1.1 jruoho {
302 1.1 jruoho return (0);
303 1.1 jruoho }
304 1.1 jruoho }
305 1.1 jruoho
306 1.1 jruoho return ((unsigned char) *String1 - (unsigned char) *String2);
307 1.1 jruoho }
308 1.1 jruoho
309 1.1 jruoho
310 1.1 jruoho /*******************************************************************************
311 1.1 jruoho *
312 1.1 jruoho * FUNCTION: AcpiUtStrchr (strchr)
313 1.1 jruoho *
314 1.1 jruoho * PARAMETERS: String - Search string
315 1.1 jruoho * ch - character to search for
316 1.1 jruoho *
317 1.1 jruoho * RETURN: Ptr to char or NULL if not found
318 1.1 jruoho *
319 1.1 jruoho * DESCRIPTION: Search a string for a character
320 1.1 jruoho *
321 1.1 jruoho ******************************************************************************/
322 1.1 jruoho
323 1.1 jruoho char *
324 1.1 jruoho AcpiUtStrchr (
325 1.1 jruoho const char *String,
326 1.1 jruoho int ch)
327 1.1 jruoho {
328 1.1 jruoho
329 1.1 jruoho
330 1.1 jruoho for ( ; (*String); String++)
331 1.1 jruoho {
332 1.1 jruoho if ((*String) == (char) ch)
333 1.1 jruoho {
334 1.1 jruoho return ((char *) String);
335 1.1 jruoho }
336 1.1 jruoho }
337 1.1 jruoho
338 1.1 jruoho return (NULL);
339 1.1 jruoho }
340 1.1.1.4 christos
341 1.1 jruoho
342 1.1 jruoho /*******************************************************************************
343 1.1 jruoho *
344 1.1 jruoho * FUNCTION: AcpiUtStrncmp (strncmp)
345 1.1 jruoho *
346 1.1 jruoho * PARAMETERS: String1 - First string
347 1.1 jruoho * String2 - Second string
348 1.1 jruoho * Count - Maximum # of bytes to compare
349 1.1 jruoho *
350 1.1 jruoho * RETURN: Index where strings mismatched, or 0 if strings matched
351 1.1 jruoho *
352 1.1 jruoho * DESCRIPTION: Compare two null terminated strings, with a maximum length
353 1.1 jruoho *
354 1.1 jruoho ******************************************************************************/
355 1.1 jruoho
356 1.1 jruoho int
357 1.1 jruoho AcpiUtStrncmp (
358 1.1 jruoho const char *String1,
359 1.1 jruoho const char *String2,
360 1.1 jruoho ACPI_SIZE Count)
361 1.1 jruoho {
362 1.1 jruoho
363 1.1 jruoho
364 1.1 jruoho for ( ; Count-- && (*String1 == *String2); String2++)
365 1.1 jruoho {
366 1.1 jruoho if (!*String1++)
367 1.1 jruoho {
368 1.1 jruoho return (0);
369 1.1 jruoho }
370 1.1 jruoho }
371 1.1 jruoho
372 1.1 jruoho return ((Count == ACPI_SIZE_MAX) ? 0 : ((unsigned char) *String1 -
373 1.1 jruoho (unsigned char) *String2));
374 1.1 jruoho }
375 1.1 jruoho
376 1.1 jruoho
377 1.1 jruoho /*******************************************************************************
378 1.1 jruoho *
379 1.1 jruoho * FUNCTION: AcpiUtStrcat (Strcat)
380 1.1 jruoho *
381 1.1 jruoho * PARAMETERS: DstString - Target of the copy
382 1.1 jruoho * SrcString - The source string to copy
383 1.1 jruoho *
384 1.1 jruoho * RETURN: DstString
385 1.1 jruoho *
386 1.1 jruoho * DESCRIPTION: Append a null terminated string to a null terminated string
387 1.1 jruoho *
388 1.1 jruoho ******************************************************************************/
389 1.1 jruoho
390 1.1 jruoho char *
391 1.1 jruoho AcpiUtStrcat (
392 1.1 jruoho char *DstString,
393 1.1 jruoho const char *SrcString)
394 1.1 jruoho {
395 1.1 jruoho char *String;
396 1.1 jruoho
397 1.1 jruoho
398 1.1 jruoho /* Find end of the destination string */
399 1.1 jruoho
400 1.1 jruoho for (String = DstString; *String++; )
401 1.1 jruoho { ; }
402 1.1 jruoho
403 1.1 jruoho /* Concatenate the string */
404 1.1 jruoho
405 1.1 jruoho for (--String; (*String++ = *SrcString++); )
406 1.1 jruoho { ; }
407 1.1 jruoho
408 1.1 jruoho return (DstString);
409 1.1 jruoho }
410 1.1 jruoho
411 1.1 jruoho
412 1.1 jruoho /*******************************************************************************
413 1.1 jruoho *
414 1.1 jruoho * FUNCTION: AcpiUtStrncat (strncat)
415 1.1 jruoho *
416 1.1 jruoho * PARAMETERS: DstString - Target of the copy
417 1.1 jruoho * SrcString - The source string to copy
418 1.1 jruoho * Count - Maximum # of bytes to copy
419 1.1 jruoho *
420 1.1 jruoho * RETURN: DstString
421 1.1 jruoho *
422 1.1 jruoho * DESCRIPTION: Append a null terminated string to a null terminated string,
423 1.1 jruoho * with a maximum count.
424 1.1 jruoho *
425 1.1 jruoho ******************************************************************************/
426 1.1 jruoho
427 1.1 jruoho char *
428 1.1 jruoho AcpiUtStrncat (
429 1.1 jruoho char *DstString,
430 1.1 jruoho const char *SrcString,
431 1.1 jruoho ACPI_SIZE Count)
432 1.1 jruoho {
433 1.1 jruoho char *String;
434 1.1 jruoho
435 1.1 jruoho
436 1.1 jruoho if (Count)
437 1.1 jruoho {
438 1.1 jruoho /* Find end of the destination string */
439 1.1 jruoho
440 1.1 jruoho for (String = DstString; *String++; )
441 1.1 jruoho { ; }
442 1.1 jruoho
443 1.1 jruoho /* Concatenate the string */
444 1.1 jruoho
445 1.1 jruoho for (--String; (*String++ = *SrcString++) && --Count; )
446 1.1 jruoho { ; }
447 1.1 jruoho
448 1.1 jruoho /* Null terminate if necessary */
449 1.1 jruoho
450 1.1 jruoho if (!Count)
451 1.1 jruoho {
452 1.1 jruoho *String = 0;
453 1.1 jruoho }
454 1.1 jruoho }
455 1.1 jruoho
456 1.1 jruoho return (DstString);
457 1.1 jruoho }
458 1.1 jruoho
459 1.1 jruoho
460 1.1 jruoho /*******************************************************************************
461 1.1 jruoho *
462 1.1 jruoho * FUNCTION: AcpiUtStrstr (strstr)
463 1.1 jruoho *
464 1.1 jruoho * PARAMETERS: String1 - Target string
465 1.1 jruoho * String2 - Substring to search for
466 1.1 jruoho *
467 1.1 jruoho * RETURN: Where substring match starts, Null if no match found
468 1.1 jruoho *
469 1.1 jruoho * DESCRIPTION: Checks if String2 occurs in String1. This is not really a
470 1.1 jruoho * full implementation of strstr, only sufficient for command
471 1.1 jruoho * matching
472 1.1 jruoho *
473 1.1 jruoho ******************************************************************************/
474 1.1 jruoho
475 1.1 jruoho char *
476 1.1 jruoho AcpiUtStrstr (
477 1.1 jruoho char *String1,
478 1.1 jruoho char *String2)
479 1.1 jruoho {
480 1.1 jruoho char *String;
481 1.1 jruoho
482 1.1 jruoho
483 1.1 jruoho if (AcpiUtStrlen (String2) > AcpiUtStrlen (String1))
484 1.1 jruoho {
485 1.1 jruoho return (NULL);
486 1.1 jruoho }
487 1.1 jruoho
488 1.1 jruoho /* Walk entire string, comparing the letters */
489 1.1 jruoho
490 1.1 jruoho for (String = String1; *String2; )
491 1.1 jruoho {
492 1.1 jruoho if (*String2 != *String)
493 1.1 jruoho {
494 1.1 jruoho return (NULL);
495 1.1 jruoho }
496 1.1 jruoho
497 1.1 jruoho String2++;
498 1.1 jruoho String++;
499 1.1 jruoho }
500 1.1 jruoho
501 1.1 jruoho return (String1);
502 1.1 jruoho }
503 1.1 jruoho
504 1.1 jruoho
505 1.1 jruoho /*******************************************************************************
506 1.1 jruoho *
507 1.1 jruoho * FUNCTION: AcpiUtStrtoul (strtoul)
508 1.1 jruoho *
509 1.1 jruoho * PARAMETERS: String - Null terminated string
510 1.1 jruoho * Terminater - Where a pointer to the terminating byte is
511 1.1 jruoho * returned
512 1.1 jruoho * Base - Radix of the string
513 1.1 jruoho *
514 1.1 jruoho * RETURN: Converted value
515 1.1 jruoho *
516 1.1 jruoho * DESCRIPTION: Convert a string into a 32-bit unsigned value.
517 1.1 jruoho * Note: use AcpiUtStrtoul64 for 64-bit integers.
518 1.1 jruoho *
519 1.1 jruoho ******************************************************************************/
520 1.1 jruoho
521 1.1 jruoho UINT32
522 1.1 jruoho AcpiUtStrtoul (
523 1.1 jruoho const char *String,
524 1.1 jruoho char **Terminator,
525 1.1 jruoho UINT32 Base)
526 1.1 jruoho {
527 1.1 jruoho UINT32 converted = 0;
528 1.1 jruoho UINT32 index;
529 1.1 jruoho UINT32 sign;
530 1.1 jruoho const char *StringStart;
531 1.1 jruoho UINT32 ReturnValue = 0;
532 1.1 jruoho ACPI_STATUS Status = AE_OK;
533 1.1 jruoho
534 1.1 jruoho
535 1.1 jruoho /*
536 1.1 jruoho * Save the value of the pointer to the buffer's first
537 1.1 jruoho * character, save the current errno value, and then
538 1.1 jruoho * skip over any white space in the buffer:
539 1.1 jruoho */
540 1.1 jruoho StringStart = String;
541 1.1 jruoho while (ACPI_IS_SPACE (*String) || *String == '\t')
542 1.1 jruoho {
543 1.1 jruoho ++String;
544 1.1 jruoho }
545 1.1 jruoho
546 1.1 jruoho /*
547 1.1 jruoho * The buffer may contain an optional plus or minus sign.
548 1.1 jruoho * If it does, then skip over it but remember what is was:
549 1.1 jruoho */
550 1.1 jruoho if (*String == '-')
551 1.1 jruoho {
552 1.1 jruoho sign = NEGATIVE;
553 1.1 jruoho ++String;
554 1.1 jruoho }
555 1.1 jruoho else if (*String == '+')
556 1.1 jruoho {
557 1.1 jruoho ++String;
558 1.1 jruoho sign = POSITIVE;
559 1.1 jruoho }
560 1.1 jruoho else
561 1.1 jruoho {
562 1.1 jruoho sign = POSITIVE;
563 1.1 jruoho }
564 1.1 jruoho
565 1.1 jruoho /*
566 1.1 jruoho * If the input parameter Base is zero, then we need to
567 1.1 jruoho * determine if it is octal, decimal, or hexadecimal:
568 1.1 jruoho */
569 1.1 jruoho if (Base == 0)
570 1.1 jruoho {
571 1.1 jruoho if (*String == '0')
572 1.1 jruoho {
573 1.1 jruoho if (AcpiUtToLower (*(++String)) == 'x')
574 1.1 jruoho {
575 1.1 jruoho Base = 16;
576 1.1 jruoho ++String;
577 1.1 jruoho }
578 1.1 jruoho else
579 1.1 jruoho {
580 1.1 jruoho Base = 8;
581 1.1 jruoho }
582 1.1 jruoho }
583 1.1 jruoho else
584 1.1 jruoho {
585 1.1 jruoho Base = 10;
586 1.1 jruoho }
587 1.1 jruoho }
588 1.1 jruoho else if (Base < 2 || Base > 36)
589 1.1 jruoho {
590 1.1 jruoho /*
591 1.1 jruoho * The specified Base parameter is not in the domain of
592 1.1 jruoho * this function:
593 1.1 jruoho */
594 1.1 jruoho goto done;
595 1.1 jruoho }
596 1.1 jruoho
597 1.1 jruoho /*
598 1.1 jruoho * For octal and hexadecimal bases, skip over the leading
599 1.1 jruoho * 0 or 0x, if they are present.
600 1.1 jruoho */
601 1.1 jruoho if (Base == 8 && *String == '0')
602 1.1 jruoho {
603 1.1 jruoho String++;
604 1.1 jruoho }
605 1.1 jruoho
606 1.1 jruoho if (Base == 16 &&
607 1.1 jruoho *String == '0' &&
608 1.1 jruoho AcpiUtToLower (*(++String)) == 'x')
609 1.1 jruoho {
610 1.1 jruoho String++;
611 1.1 jruoho }
612 1.1 jruoho
613 1.1 jruoho /*
614 1.1 jruoho * Main loop: convert the string to an unsigned long:
615 1.1 jruoho */
616 1.1 jruoho while (*String)
617 1.1 jruoho {
618 1.1 jruoho if (ACPI_IS_DIGIT (*String))
619 1.1 jruoho {
620 1.1 jruoho index = (UINT32) ((UINT8) *String - '0');
621 1.1 jruoho }
622 1.1 jruoho else
623 1.1 jruoho {
624 1.1 jruoho index = (UINT32) AcpiUtToUpper (*String);
625 1.1 jruoho if (ACPI_IS_UPPER (index))
626 1.1 jruoho {
627 1.1 jruoho index = index - 'A' + 10;
628 1.1 jruoho }
629 1.1 jruoho else
630 1.1 jruoho {
631 1.1 jruoho goto done;
632 1.1 jruoho }
633 1.1 jruoho }
634 1.1 jruoho
635 1.1 jruoho if (index >= Base)
636 1.1 jruoho {
637 1.1 jruoho goto done;
638 1.1 jruoho }
639 1.1 jruoho
640 1.1 jruoho /*
641 1.1 jruoho * Check to see if value is out of range:
642 1.1 jruoho */
643 1.1 jruoho
644 1.1 jruoho if (ReturnValue > ((ACPI_UINT32_MAX - (UINT32) index) /
645 1.1 jruoho (UINT32) Base))
646 1.1 jruoho {
647 1.1 jruoho Status = AE_ERROR;
648 1.1 jruoho ReturnValue = 0; /* reset */
649 1.1 jruoho }
650 1.1 jruoho else
651 1.1 jruoho {
652 1.1 jruoho ReturnValue *= Base;
653 1.1 jruoho ReturnValue += index;
654 1.1 jruoho converted = 1;
655 1.1 jruoho }
656 1.1 jruoho
657 1.1 jruoho ++String;
658 1.1 jruoho }
659 1.1 jruoho
660 1.1 jruoho done:
661 1.1 jruoho /*
662 1.1 jruoho * If appropriate, update the caller's pointer to the next
663 1.1 jruoho * unconverted character in the buffer.
664 1.1 jruoho */
665 1.1 jruoho if (Terminator)
666 1.1 jruoho {
667 1.1 jruoho if (converted == 0 && ReturnValue == 0 && String != NULL)
668 1.1 jruoho {
669 1.1 jruoho *Terminator = (char *) StringStart;
670 1.1 jruoho }
671 1.1 jruoho else
672 1.1 jruoho {
673 1.1 jruoho *Terminator = (char *) String;
674 1.1 jruoho }
675 1.1 jruoho }
676 1.1 jruoho
677 1.1 jruoho if (Status == AE_ERROR)
678 1.1 jruoho {
679 1.1 jruoho ReturnValue = ACPI_UINT32_MAX;
680 1.1 jruoho }
681 1.1 jruoho
682 1.1 jruoho /*
683 1.1 jruoho * If a minus sign was present, then "the conversion is negated":
684 1.1 jruoho */
685 1.1 jruoho if (sign == NEGATIVE)
686 1.1 jruoho {
687 1.1 jruoho ReturnValue = (ACPI_UINT32_MAX - ReturnValue) + 1;
688 1.1 jruoho }
689 1.1 jruoho
690 1.1 jruoho return (ReturnValue);
691 1.1 jruoho }
692 1.1 jruoho
693 1.1 jruoho
694 1.1 jruoho /*******************************************************************************
695 1.1 jruoho *
696 1.1 jruoho * FUNCTION: AcpiUtToUpper (TOUPPER)
697 1.1 jruoho *
698 1.1 jruoho * PARAMETERS: c - Character to convert
699 1.1 jruoho *
700 1.1 jruoho * RETURN: Converted character as an int
701 1.1 jruoho *
702 1.1 jruoho * DESCRIPTION: Convert character to uppercase
703 1.1 jruoho *
704 1.1 jruoho ******************************************************************************/
705 1.1 jruoho
706 1.1 jruoho int
707 1.1 jruoho AcpiUtToUpper (
708 1.1 jruoho int c)
709 1.1 jruoho {
710 1.1 jruoho
711 1.1 jruoho return (ACPI_IS_LOWER(c) ? ((c)-0x20) : (c));
712 1.1 jruoho }
713 1.1 jruoho
714 1.1 jruoho
715 1.1 jruoho /*******************************************************************************
716 1.1 jruoho *
717 1.1 jruoho * FUNCTION: AcpiUtToLower (TOLOWER)
718 1.1 jruoho *
719 1.1 jruoho * PARAMETERS: c - Character to convert
720 1.1 jruoho *
721 1.1 jruoho * RETURN: Converted character as an int
722 1.1 jruoho *
723 1.1 jruoho * DESCRIPTION: Convert character to lowercase
724 1.1 jruoho *
725 1.1 jruoho ******************************************************************************/
726 1.1 jruoho
727 1.1 jruoho int
728 1.1 jruoho AcpiUtToLower (
729 1.1 jruoho int c)
730 1.1 jruoho {
731 1.1 jruoho
732 1.1 jruoho return (ACPI_IS_UPPER(c) ? ((c)+0x20) : (c));
733 1.1 jruoho }
734 1.1 jruoho
735 1.1 jruoho
736 1.1 jruoho /*******************************************************************************
737 1.1 jruoho *
738 1.1 jruoho * FUNCTION: is* functions
739 1.1 jruoho *
740 1.1 jruoho * DESCRIPTION: is* functions use the ctype table below
741 1.1 jruoho *
742 1.1 jruoho ******************************************************************************/
743 1.1 jruoho
744 1.1 jruoho const UINT8 _acpi_ctype[257] = {
745 1.1.1.3 christos _ACPI_CN, /* 0x00 0 NUL */
746 1.1.1.3 christos _ACPI_CN, /* 0x01 1 SOH */
747 1.1.1.3 christos _ACPI_CN, /* 0x02 2 STX */
748 1.1.1.3 christos _ACPI_CN, /* 0x03 3 ETX */
749 1.1.1.3 christos _ACPI_CN, /* 0x04 4 EOT */
750 1.1.1.3 christos _ACPI_CN, /* 0x05 5 ENQ */
751 1.1.1.3 christos _ACPI_CN, /* 0x06 6 ACK */
752 1.1.1.3 christos _ACPI_CN, /* 0x07 7 BEL */
753 1.1.1.3 christos _ACPI_CN, /* 0x08 8 BS */
754 1.1.1.3 christos _ACPI_CN|_ACPI_SP, /* 0x09 9 TAB */
755 1.1.1.3 christos _ACPI_CN|_ACPI_SP, /* 0x0A 10 LF */
756 1.1.1.3 christos _ACPI_CN|_ACPI_SP, /* 0x0B 11 VT */
757 1.1.1.3 christos _ACPI_CN|_ACPI_SP, /* 0x0C 12 FF */
758 1.1.1.3 christos _ACPI_CN|_ACPI_SP, /* 0x0D 13 CR */
759 1.1.1.3 christos _ACPI_CN, /* 0x0E 14 SO */
760 1.1.1.3 christos _ACPI_CN, /* 0x0F 15 SI */
761 1.1.1.3 christos _ACPI_CN, /* 0x10 16 DLE */
762 1.1.1.3 christos _ACPI_CN, /* 0x11 17 DC1 */
763 1.1.1.3 christos _ACPI_CN, /* 0x12 18 DC2 */
764 1.1.1.3 christos _ACPI_CN, /* 0x13 19 DC3 */
765 1.1.1.3 christos _ACPI_CN, /* 0x14 20 DC4 */
766 1.1.1.3 christos _ACPI_CN, /* 0x15 21 NAK */
767 1.1.1.3 christos _ACPI_CN, /* 0x16 22 SYN */
768 1.1.1.3 christos _ACPI_CN, /* 0x17 23 ETB */
769 1.1.1.3 christos _ACPI_CN, /* 0x18 24 CAN */
770 1.1.1.3 christos _ACPI_CN, /* 0x19 25 EM */
771 1.1.1.3 christos _ACPI_CN, /* 0x1A 26 SUB */
772 1.1.1.3 christos _ACPI_CN, /* 0x1B 27 ESC */
773 1.1.1.3 christos _ACPI_CN, /* 0x1C 28 FS */
774 1.1.1.3 christos _ACPI_CN, /* 0x1D 29 GS */
775 1.1.1.3 christos _ACPI_CN, /* 0x1E 30 RS */
776 1.1.1.3 christos _ACPI_CN, /* 0x1F 31 US */
777 1.1.1.3 christos _ACPI_XS|_ACPI_SP, /* 0x20 32 ' ' */
778 1.1.1.3 christos _ACPI_PU, /* 0x21 33 '!' */
779 1.1.1.3 christos _ACPI_PU, /* 0x22 34 '"' */
780 1.1.1.3 christos _ACPI_PU, /* 0x23 35 '#' */
781 1.1.1.3 christos _ACPI_PU, /* 0x24 36 '$' */
782 1.1.1.3 christos _ACPI_PU, /* 0x25 37 '%' */
783 1.1.1.3 christos _ACPI_PU, /* 0x26 38 '&' */
784 1.1.1.3 christos _ACPI_PU, /* 0x27 39 ''' */
785 1.1.1.3 christos _ACPI_PU, /* 0x28 40 '(' */
786 1.1.1.3 christos _ACPI_PU, /* 0x29 41 ')' */
787 1.1.1.3 christos _ACPI_PU, /* 0x2A 42 '*' */
788 1.1.1.3 christos _ACPI_PU, /* 0x2B 43 '+' */
789 1.1.1.3 christos _ACPI_PU, /* 0x2C 44 ',' */
790 1.1.1.3 christos _ACPI_PU, /* 0x2D 45 '-' */
791 1.1.1.3 christos _ACPI_PU, /* 0x2E 46 '.' */
792 1.1.1.3 christos _ACPI_PU, /* 0x2F 47 '/' */
793 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x30 48 '0' */
794 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x31 49 '1' */
795 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x32 50 '2' */
796 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x33 51 '3' */
797 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x34 52 '4' */
798 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x35 53 '5' */
799 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x36 54 '6' */
800 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x37 55 '7' */
801 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x38 56 '8' */
802 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x39 57 '9' */
803 1.1.1.3 christos _ACPI_PU, /* 0x3A 58 ':' */
804 1.1.1.3 christos _ACPI_PU, /* 0x3B 59 ';' */
805 1.1.1.3 christos _ACPI_PU, /* 0x3C 60 '<' */
806 1.1.1.3 christos _ACPI_PU, /* 0x3D 61 '=' */
807 1.1.1.3 christos _ACPI_PU, /* 0x3E 62 '>' */
808 1.1.1.3 christos _ACPI_PU, /* 0x3F 63 '?' */
809 1.1.1.3 christos _ACPI_PU, /* 0x40 64 '@' */
810 1.1.1.3 christos _ACPI_XD|_ACPI_UP, /* 0x41 65 'A' */
811 1.1.1.3 christos _ACPI_XD|_ACPI_UP, /* 0x42 66 'B' */
812 1.1.1.3 christos _ACPI_XD|_ACPI_UP, /* 0x43 67 'C' */
813 1.1.1.3 christos _ACPI_XD|_ACPI_UP, /* 0x44 68 'D' */
814 1.1.1.3 christos _ACPI_XD|_ACPI_UP, /* 0x45 69 'E' */
815 1.1.1.3 christos _ACPI_XD|_ACPI_UP, /* 0x46 70 'F' */
816 1.1.1.3 christos _ACPI_UP, /* 0x47 71 'G' */
817 1.1.1.3 christos _ACPI_UP, /* 0x48 72 'H' */
818 1.1.1.3 christos _ACPI_UP, /* 0x49 73 'I' */
819 1.1.1.3 christos _ACPI_UP, /* 0x4A 74 'J' */
820 1.1.1.3 christos _ACPI_UP, /* 0x4B 75 'K' */
821 1.1.1.3 christos _ACPI_UP, /* 0x4C 76 'L' */
822 1.1.1.3 christos _ACPI_UP, /* 0x4D 77 'M' */
823 1.1.1.3 christos _ACPI_UP, /* 0x4E 78 'N' */
824 1.1.1.3 christos _ACPI_UP, /* 0x4F 79 'O' */
825 1.1.1.3 christos _ACPI_UP, /* 0x50 80 'P' */
826 1.1.1.3 christos _ACPI_UP, /* 0x51 81 'Q' */
827 1.1.1.3 christos _ACPI_UP, /* 0x52 82 'R' */
828 1.1.1.3 christos _ACPI_UP, /* 0x53 83 'S' */
829 1.1.1.3 christos _ACPI_UP, /* 0x54 84 'T' */
830 1.1.1.3 christos _ACPI_UP, /* 0x55 85 'U' */
831 1.1.1.3 christos _ACPI_UP, /* 0x56 86 'V' */
832 1.1.1.3 christos _ACPI_UP, /* 0x57 87 'W' */
833 1.1.1.3 christos _ACPI_UP, /* 0x58 88 'X' */
834 1.1.1.3 christos _ACPI_UP, /* 0x59 89 'Y' */
835 1.1.1.3 christos _ACPI_UP, /* 0x5A 90 'Z' */
836 1.1.1.3 christos _ACPI_PU, /* 0x5B 91 '[' */
837 1.1.1.3 christos _ACPI_PU, /* 0x5C 92 '\' */
838 1.1.1.3 christos _ACPI_PU, /* 0x5D 93 ']' */
839 1.1.1.3 christos _ACPI_PU, /* 0x5E 94 '^' */
840 1.1.1.3 christos _ACPI_PU, /* 0x5F 95 '_' */
841 1.1.1.3 christos _ACPI_PU, /* 0x60 96 '`' */
842 1.1.1.3 christos _ACPI_XD|_ACPI_LO, /* 0x61 97 'a' */
843 1.1.1.3 christos _ACPI_XD|_ACPI_LO, /* 0x62 98 'b' */
844 1.1.1.3 christos _ACPI_XD|_ACPI_LO, /* 0x63 99 'c' */
845 1.1.1.3 christos _ACPI_XD|_ACPI_LO, /* 0x64 100 'd' */
846 1.1.1.3 christos _ACPI_XD|_ACPI_LO, /* 0x65 101 'e' */
847 1.1.1.3 christos _ACPI_XD|_ACPI_LO, /* 0x66 102 'f' */
848 1.1.1.3 christos _ACPI_LO, /* 0x67 103 'g' */
849 1.1.1.3 christos _ACPI_LO, /* 0x68 104 'h' */
850 1.1.1.3 christos _ACPI_LO, /* 0x69 105 'i' */
851 1.1.1.3 christos _ACPI_LO, /* 0x6A 106 'j' */
852 1.1.1.3 christos _ACPI_LO, /* 0x6B 107 'k' */
853 1.1.1.3 christos _ACPI_LO, /* 0x6C 108 'l' */
854 1.1.1.3 christos _ACPI_LO, /* 0x6D 109 'm' */
855 1.1.1.3 christos _ACPI_LO, /* 0x6E 110 'n' */
856 1.1.1.3 christos _ACPI_LO, /* 0x6F 111 'o' */
857 1.1.1.3 christos _ACPI_LO, /* 0x70 112 'p' */
858 1.1.1.3 christos _ACPI_LO, /* 0x71 113 'q' */
859 1.1.1.3 christos _ACPI_LO, /* 0x72 114 'r' */
860 1.1.1.3 christos _ACPI_LO, /* 0x73 115 's' */
861 1.1.1.3 christos _ACPI_LO, /* 0x74 116 't' */
862 1.1.1.3 christos _ACPI_LO, /* 0x75 117 'u' */
863 1.1.1.3 christos _ACPI_LO, /* 0x76 118 'v' */
864 1.1.1.3 christos _ACPI_LO, /* 0x77 119 'w' */
865 1.1.1.3 christos _ACPI_LO, /* 0x78 120 'x' */
866 1.1.1.3 christos _ACPI_LO, /* 0x79 121 'y' */
867 1.1.1.3 christos _ACPI_LO, /* 0x7A 122 'z' */
868 1.1.1.3 christos _ACPI_PU, /* 0x7B 123 '{' */
869 1.1.1.3 christos _ACPI_PU, /* 0x7C 124 '|' */
870 1.1.1.3 christos _ACPI_PU, /* 0x7D 125 '}' */
871 1.1.1.3 christos _ACPI_PU, /* 0x7E 126 '~' */
872 1.1.1.3 christos _ACPI_CN, /* 0x7F 127 DEL */
873 1.1 jruoho
874 1.1 jruoho 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x80 to 0x8F */
875 1.1 jruoho 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x90 to 0x9F */
876 1.1 jruoho 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xA0 to 0xAF */
877 1.1 jruoho 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xB0 to 0xBF */
878 1.1 jruoho 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xC0 to 0xCF */
879 1.1 jruoho 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xD0 to 0xDF */
880 1.1 jruoho 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xE0 to 0xEF */
881 1.1.1.3 christos 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xF0 to 0xFF */
882 1.1.1.3 christos 0 /* 0x100 */
883 1.1 jruoho };
884 1.1 jruoho
885 1.1 jruoho
886 1.1 jruoho #endif /* ACPI_USE_SYSTEM_CLIBRARY */
887