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1/*******************************************************************************
2 *
3 * Module Name: rsmisc - Miscellaneous resource descriptors
4 *
5 ******************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2011, Intel Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 */
43
44#include <acpi/acpi.h>
45#include "accommon.h"
46#include "acresrc.h"
47
48#define _COMPONENT ACPI_RESOURCES
49ACPI_MODULE_NAME("rsmisc")
50#define INIT_RESOURCE_TYPE(i) i->resource_offset
51#define INIT_RESOURCE_LENGTH(i) i->aml_offset
52#define INIT_TABLE_LENGTH(i) i->value
53#define COMPARE_OPCODE(i) i->resource_offset
54#define COMPARE_TARGET(i) i->aml_offset
55#define COMPARE_VALUE(i) i->value
56/*******************************************************************************
57 *
58 * FUNCTION: acpi_rs_convert_aml_to_resource
59 *
60 * PARAMETERS: Resource - Pointer to the resource descriptor
61 * Aml - Where the AML descriptor is returned
62 * Info - Pointer to appropriate conversion table
63 *
64 * RETURN: Status
65 *
66 * DESCRIPTION: Convert an external AML resource descriptor to the corresponding
67 * internal resource descriptor
68 *
69 ******************************************************************************/
70acpi_status
71acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
72 union aml_resource *aml,
73 struct acpi_rsconvert_info *info)
74{
75 acpi_rs_length aml_resource_length;
76 void *source;
77 void *destination;
78 char *target;
79 u8 count;
80 u8 flags_mode = FALSE;
81 u16 item_count = 0;
82 u16 temp16 = 0;
83
84 ACPI_FUNCTION_TRACE(rs_convert_aml_to_resource);
85
86 if (((acpi_size) resource) & 0x3) {
87
88 /* Each internal resource struct is expected to be 32-bit aligned */
89
90 ACPI_WARNING((AE_INFO,
91 "Misaligned resource pointer (get): %p Type 0x%2.2X Length %u",
92 resource, resource->type, resource->length));
93 }
94
95 /* Extract the resource Length field (does not include header length) */
96
97 aml_resource_length = acpi_ut_get_resource_length(aml);
98
99 /*
100 * First table entry must be ACPI_RSC_INITxxx and must contain the
101 * table length (# of table entries)
102 */
103 count = INIT_TABLE_LENGTH(info);
104
105 while (count) {
106 /*
107 * Source is the external AML byte stream buffer,
108 * destination is the internal resource descriptor
109 */
110 source = ACPI_ADD_PTR(void, aml, info->aml_offset);
111 destination =
112 ACPI_ADD_PTR(void, resource, info->resource_offset);
113
114 switch (info->opcode) {
115 case ACPI_RSC_INITGET:
116 /*
117 * Get the resource type and the initial (minimum) length
118 */
119 ACPI_MEMSET(resource, 0, INIT_RESOURCE_LENGTH(info));
120 resource->type = INIT_RESOURCE_TYPE(info);
121 resource->length = INIT_RESOURCE_LENGTH(info);
122 break;
123
124 case ACPI_RSC_INITSET:
125 break;
126
127 case ACPI_RSC_FLAGINIT:
128
129 flags_mode = TRUE;
130 break;
131
132 case ACPI_RSC_1BITFLAG:
133 /*
134 * Mask and shift the flag bit
135 */
136 ACPI_SET8(destination) = (u8)
137 ((ACPI_GET8(source) >> info->value) & 0x01);
138 break;
139
140 case ACPI_RSC_2BITFLAG:
141 /*
142 * Mask and shift the flag bits
143 */
144 ACPI_SET8(destination) = (u8)
145 ((ACPI_GET8(source) >> info->value) & 0x03);
146 break;
147
148 case ACPI_RSC_COUNT:
149
150 item_count = ACPI_GET8(source);
151 ACPI_SET8(destination) = (u8) item_count;
152
153 resource->length = resource->length +
154 (info->value * (item_count - 1));
155 break;
156
157 case ACPI_RSC_COUNT16:
158
159 item_count = aml_resource_length;
160 ACPI_SET16(destination) = item_count;
161
162 resource->length = resource->length +
163 (info->value * (item_count - 1));
164 break;
165
166 case ACPI_RSC_LENGTH:
167
168 resource->length = resource->length + info->value;
169 break;
170
171 case ACPI_RSC_MOVE8:
172 case ACPI_RSC_MOVE16:
173 case ACPI_RSC_MOVE32:
174 case ACPI_RSC_MOVE64:
175 /*
176 * Raw data move. Use the Info value field unless item_count has
177 * been previously initialized via a COUNT opcode
178 */
179 if (info->value) {
180 item_count = info->value;
181 }
182 acpi_rs_move_data(destination, source, item_count,
183 info->opcode);
184 break;
185
186 case ACPI_RSC_SET8:
187
188 ACPI_MEMSET(destination, info->aml_offset, info->value);
189 break;
190
191 case ACPI_RSC_DATA8:
192
193 target = ACPI_ADD_PTR(char, resource, info->value);
194 ACPI_MEMCPY(destination, source, ACPI_GET16(target));
195 break;
196
197 case ACPI_RSC_ADDRESS:
198 /*
199 * Common handler for address descriptor flags
200 */
201 if (!acpi_rs_get_address_common(resource, aml)) {
202 return_ACPI_STATUS
203 (AE_AML_INVALID_RESOURCE_TYPE);
204 }
205 break;
206
207 case ACPI_RSC_SOURCE:
208 /*
209 * Optional resource_source (Index and String)
210 */
211 resource->length +=
212 acpi_rs_get_resource_source(aml_resource_length,
213 info->value,
214 destination, aml, NULL);
215 break;
216
217 case ACPI_RSC_SOURCEX:
218 /*
219 * Optional resource_source (Index and String). This is the more
220 * complicated case used by the Interrupt() macro
221 */
222 target =
223 ACPI_ADD_PTR(char, resource,
224 info->aml_offset + (item_count * 4));
225
226 resource->length +=
227 acpi_rs_get_resource_source(aml_resource_length,
228 (acpi_rs_length) (((item_count - 1) * sizeof(u32)) + info->value), destination, aml, target);
229 break;
230
231 case ACPI_RSC_BITMASK:
232 /*
233 * 8-bit encoded bitmask (DMA macro)
234 */
235 item_count =
236 acpi_rs_decode_bitmask(ACPI_GET8(source),
237 destination);
238 if (item_count) {
239 resource->length += (item_count - 1);
240 }
241
242 target = ACPI_ADD_PTR(char, resource, info->value);
243 ACPI_SET8(target) = (u8) item_count;
244 break;
245
246 case ACPI_RSC_BITMASK16:
247 /*
248 * 16-bit encoded bitmask (IRQ macro)
249 */
250 ACPI_MOVE_16_TO_16(&temp16, source);
251
252 item_count =
253 acpi_rs_decode_bitmask(temp16, destination);
254 if (item_count) {
255 resource->length += (item_count - 1);
256 }
257
258 target = ACPI_ADD_PTR(char, resource, info->value);
259 ACPI_SET8(target) = (u8) item_count;
260 break;
261
262 case ACPI_RSC_EXIT_NE:
263 /*
264 * Control - Exit conversion if not equal
265 */
266 switch (info->resource_offset) {
267 case ACPI_RSC_COMPARE_AML_LENGTH:
268 if (aml_resource_length != info->value) {
269 goto exit;
270 }
271 break;
272
273 case ACPI_RSC_COMPARE_VALUE:
274 if (ACPI_GET8(source) != info->value) {
275 goto exit;
276 }
277 break;
278
279 default:
280
281 ACPI_ERROR((AE_INFO,
282 "Invalid conversion sub-opcode"));
283 return_ACPI_STATUS(AE_BAD_PARAMETER);
284 }
285 break;
286
287 default:
288
289 ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
290 return_ACPI_STATUS(AE_BAD_PARAMETER);
291 }
292
293 count--;
294 info++;
295 }
296
297 exit:
298 if (!flags_mode) {
299
300 /* Round the resource struct length up to the next boundary (32 or 64) */
301
302 resource->length =
303 (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(resource->length);
304 }
305 return_ACPI_STATUS(AE_OK);
306}
307
308/*******************************************************************************
309 *
310 * FUNCTION: acpi_rs_convert_resource_to_aml
311 *
312 * PARAMETERS: Resource - Pointer to the resource descriptor
313 * Aml - Where the AML descriptor is returned
314 * Info - Pointer to appropriate conversion table
315 *
316 * RETURN: Status
317 *
318 * DESCRIPTION: Convert an internal resource descriptor to the corresponding
319 * external AML resource descriptor.
320 *
321 ******************************************************************************/
322
323acpi_status
324acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
325 union aml_resource *aml,
326 struct acpi_rsconvert_info *info)
327{
328 void *source = NULL;
329 void *destination;
330 acpi_rsdesc_size aml_length = 0;
331 u8 count;
332 u16 temp16 = 0;
333 u16 item_count = 0;
334
335 ACPI_FUNCTION_TRACE(rs_convert_resource_to_aml);
336
337 /*
338 * First table entry must be ACPI_RSC_INITxxx and must contain the
339 * table length (# of table entries)
340 */
341 count = INIT_TABLE_LENGTH(info);
342
343 while (count) {
344 /*
345 * Source is the internal resource descriptor,
346 * destination is the external AML byte stream buffer
347 */
348 source = ACPI_ADD_PTR(void, resource, info->resource_offset);
349 destination = ACPI_ADD_PTR(void, aml, info->aml_offset);
350
351 switch (info->opcode) {
352 case ACPI_RSC_INITSET:
353
354 ACPI_MEMSET(aml, 0, INIT_RESOURCE_LENGTH(info));
355 aml_length = INIT_RESOURCE_LENGTH(info);
356 acpi_rs_set_resource_header(INIT_RESOURCE_TYPE(info),
357 aml_length, aml);
358 break;
359
360 case ACPI_RSC_INITGET:
361 break;
362
363 case ACPI_RSC_FLAGINIT:
364 /*
365 * Clear the flag byte
366 */
367 ACPI_SET8(destination) = 0;
368 break;
369
370 case ACPI_RSC_1BITFLAG:
371 /*
372 * Mask and shift the flag bit
373 */
374 ACPI_SET8(destination) |= (u8)
375 ((ACPI_GET8(source) & 0x01) << info->value);
376 break;
377
378 case ACPI_RSC_2BITFLAG:
379 /*
380 * Mask and shift the flag bits
381 */
382 ACPI_SET8(destination) |= (u8)
383 ((ACPI_GET8(source) & 0x03) << info->value);
384 break;
385
386 case ACPI_RSC_COUNT:
387
388 item_count = ACPI_GET8(source);
389 ACPI_SET8(destination) = (u8) item_count;
390
391 aml_length =
392 (u16) (aml_length +
393 (info->value * (item_count - 1)));
394 break;
395
396 case ACPI_RSC_COUNT16:
397
398 item_count = ACPI_GET16(source);
399 aml_length = (u16) (aml_length + item_count);
400 acpi_rs_set_resource_length(aml_length, aml);
401 break;
402
403 case ACPI_RSC_LENGTH:
404
405 acpi_rs_set_resource_length(info->value, aml);
406 break;
407
408 case ACPI_RSC_MOVE8:
409 case ACPI_RSC_MOVE16:
410 case ACPI_RSC_MOVE32:
411 case ACPI_RSC_MOVE64:
412
413 if (info->value) {
414 item_count = info->value;
415 }
416 acpi_rs_move_data(destination, source, item_count,
417 info->opcode);
418 break;
419
420 case ACPI_RSC_ADDRESS:
421
422 /* Set the Resource Type, General Flags, and Type-Specific Flags */
423
424 acpi_rs_set_address_common(aml, resource);
425 break;
426
427 case ACPI_RSC_SOURCEX:
428 /*
429 * Optional resource_source (Index and String)
430 */
431 aml_length =
432 acpi_rs_set_resource_source(aml, (acpi_rs_length)
433 aml_length, source);
434 acpi_rs_set_resource_length(aml_length, aml);
435 break;
436
437 case ACPI_RSC_SOURCE:
438 /*
439 * Optional resource_source (Index and String). This is the more
440 * complicated case used by the Interrupt() macro
441 */
442 aml_length =
443 acpi_rs_set_resource_source(aml, info->value,
444 source);
445 acpi_rs_set_resource_length(aml_length, aml);
446 break;
447
448 case ACPI_RSC_BITMASK:
449 /*
450 * 8-bit encoded bitmask (DMA macro)
451 */
452 ACPI_SET8(destination) = (u8)
453 acpi_rs_encode_bitmask(source,
454 *ACPI_ADD_PTR(u8, resource,
455 info->value));
456 break;
457
458 case ACPI_RSC_BITMASK16:
459 /*
460 * 16-bit encoded bitmask (IRQ macro)
461 */
462 temp16 = acpi_rs_encode_bitmask(source,
463 *ACPI_ADD_PTR(u8,
464 resource,
465 info->
466 value));
467 ACPI_MOVE_16_TO_16(destination, &temp16);
468 break;
469
470 case ACPI_RSC_EXIT_LE:
471 /*
472 * Control - Exit conversion if less than or equal
473 */
474 if (item_count <= info->value) {
475 goto exit;
476 }
477 break;
478
479 case ACPI_RSC_EXIT_NE:
480 /*
481 * Control - Exit conversion if not equal
482 */
483 switch (COMPARE_OPCODE(info)) {
484 case ACPI_RSC_COMPARE_VALUE:
485
486 if (*ACPI_ADD_PTR(u8, resource,
487 COMPARE_TARGET(info)) !=
488 COMPARE_VALUE(info)) {
489 goto exit;
490 }
491 break;
492
493 default:
494
495 ACPI_ERROR((AE_INFO,
496 "Invalid conversion sub-opcode"));
497 return_ACPI_STATUS(AE_BAD_PARAMETER);
498 }
499 break;
500
501 case ACPI_RSC_EXIT_EQ:
502 /*
503 * Control - Exit conversion if equal
504 */
505 if (*ACPI_ADD_PTR(u8, resource,
506 COMPARE_TARGET(info)) ==
507 COMPARE_VALUE(info)) {
508 goto exit;
509 }
510 break;
511
512 default:
513
514 ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
515 return_ACPI_STATUS(AE_BAD_PARAMETER);
516 }
517
518 count--;
519 info++;
520 }
521
522 exit:
523 return_ACPI_STATUS(AE_OK);
524}
525
526#if 0
527/* Previous resource validations */
528
529if (aml->ext_address64.revision_iD != AML_RESOURCE_EXTENDED_ADDRESS_REVISION) {
530 return_ACPI_STATUS(AE_SUPPORT);
531}
532
533if (resource->data.start_dpf.performance_robustness >= 3) {
534 return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE);
535}
536
537if (((aml->irq.flags & 0x09) == 0x00) || ((aml->irq.flags & 0x09) == 0x09)) {
538 /*
539 * Only [active_high, edge_sensitive] or [active_low, level_sensitive]
540 * polarity/trigger interrupts are allowed (ACPI spec, section
541 * "IRQ Format"), so 0x00 and 0x09 are illegal.
542 */
543 ACPI_ERROR((AE_INFO,
544 "Invalid interrupt polarity/trigger in resource list, 0x%X",
545 aml->irq.flags));
546 return_ACPI_STATUS(AE_BAD_DATA);
547}
548
549resource->data.extended_irq.interrupt_count = temp8;
550if (temp8 < 1) {
551
552 /* Must have at least one IRQ */
553
554 return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
555}
556
557if (resource->data.dma.transfer == 0x03) {
558 ACPI_ERROR((AE_INFO, "Invalid DMA.Transfer preference (3)"));
559 return_ACPI_STATUS(AE_BAD_DATA);
560}
561#endif
1// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
2/*******************************************************************************
3 *
4 * Module Name: rsmisc - Miscellaneous resource descriptors
5 *
6 ******************************************************************************/
7
8#include <acpi/acpi.h>
9#include "accommon.h"
10#include "acresrc.h"
11
12#define _COMPONENT ACPI_RESOURCES
13ACPI_MODULE_NAME("rsmisc")
14#define INIT_RESOURCE_TYPE(i) i->resource_offset
15#define INIT_RESOURCE_LENGTH(i) i->aml_offset
16#define INIT_TABLE_LENGTH(i) i->value
17#define COMPARE_OPCODE(i) i->resource_offset
18#define COMPARE_TARGET(i) i->aml_offset
19#define COMPARE_VALUE(i) i->value
20/*******************************************************************************
21 *
22 * FUNCTION: acpi_rs_convert_aml_to_resource
23 *
24 * PARAMETERS: resource - Pointer to the resource descriptor
25 * aml - Where the AML descriptor is returned
26 * info - Pointer to appropriate conversion table
27 *
28 * RETURN: Status
29 *
30 * DESCRIPTION: Convert an external AML resource descriptor to the corresponding
31 * internal resource descriptor
32 *
33 ******************************************************************************/
34acpi_status
35acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
36 union aml_resource *aml,
37 struct acpi_rsconvert_info *info)
38{
39 acpi_rs_length aml_resource_length;
40 void *source;
41 void *destination;
42 char *target;
43 u8 count;
44 u8 flags_mode = FALSE;
45 u16 item_count = 0;
46 u16 temp16 = 0;
47
48 ACPI_FUNCTION_TRACE(rs_convert_aml_to_resource);
49
50 if (!info) {
51 return_ACPI_STATUS(AE_BAD_PARAMETER);
52 }
53
54 if (((acpi_size)resource) & 0x3) {
55
56 /* Each internal resource struct is expected to be 32-bit aligned */
57
58 ACPI_WARNING((AE_INFO,
59 "Misaligned resource pointer (get): %p Type 0x%2.2X Length %u",
60 resource, resource->type, resource->length));
61 }
62
63 /* Extract the resource Length field (does not include header length) */
64
65 aml_resource_length = acpi_ut_get_resource_length(aml);
66
67 /*
68 * First table entry must be ACPI_RSC_INITxxx and must contain the
69 * table length (# of table entries)
70 */
71 count = INIT_TABLE_LENGTH(info);
72 while (count) {
73 /*
74 * Source is the external AML byte stream buffer,
75 * destination is the internal resource descriptor
76 */
77 source = ACPI_ADD_PTR(void, aml, info->aml_offset);
78 destination =
79 ACPI_ADD_PTR(void, resource, info->resource_offset);
80
81 switch (info->opcode) {
82 case ACPI_RSC_INITGET:
83 /*
84 * Get the resource type and the initial (minimum) length
85 */
86 memset(resource, 0, INIT_RESOURCE_LENGTH(info));
87 resource->type = INIT_RESOURCE_TYPE(info);
88 resource->length = INIT_RESOURCE_LENGTH(info);
89 break;
90
91 case ACPI_RSC_INITSET:
92 break;
93
94 case ACPI_RSC_FLAGINIT:
95
96 flags_mode = TRUE;
97 break;
98
99 case ACPI_RSC_1BITFLAG:
100 /*
101 * Mask and shift the flag bit
102 */
103 ACPI_SET8(destination,
104 ((ACPI_GET8(source) >> info->value) & 0x01));
105 break;
106
107 case ACPI_RSC_2BITFLAG:
108 /*
109 * Mask and shift the flag bits
110 */
111 ACPI_SET8(destination,
112 ((ACPI_GET8(source) >> info->value) & 0x03));
113 break;
114
115 case ACPI_RSC_3BITFLAG:
116 /*
117 * Mask and shift the flag bits
118 */
119 ACPI_SET8(destination,
120 ((ACPI_GET8(source) >> info->value) & 0x07));
121 break;
122
123 case ACPI_RSC_COUNT:
124
125 item_count = ACPI_GET8(source);
126 ACPI_SET8(destination, item_count);
127
128 resource->length = resource->length +
129 (info->value * (item_count - 1));
130 break;
131
132 case ACPI_RSC_COUNT16:
133
134 item_count = aml_resource_length;
135 ACPI_SET16(destination, item_count);
136
137 resource->length = resource->length +
138 (info->value * (item_count - 1));
139 break;
140
141 case ACPI_RSC_COUNT_GPIO_PIN:
142
143 target = ACPI_ADD_PTR(void, aml, info->value);
144 item_count = ACPI_GET16(target) - ACPI_GET16(source);
145
146 resource->length = resource->length + item_count;
147 item_count = item_count / 2;
148 ACPI_SET16(destination, item_count);
149 break;
150
151 case ACPI_RSC_COUNT_GPIO_VEN:
152
153 item_count = ACPI_GET8(source);
154 ACPI_SET8(destination, item_count);
155
156 resource->length =
157 resource->length + (info->value * item_count);
158 break;
159
160 case ACPI_RSC_COUNT_GPIO_RES:
161 /*
162 * Vendor data is optional (length/offset may both be zero)
163 * Examine vendor data length field first
164 */
165 target = ACPI_ADD_PTR(void, aml, (info->value + 2));
166 if (ACPI_GET16(target)) {
167
168 /* Use vendor offset to get resource source length */
169
170 target = ACPI_ADD_PTR(void, aml, info->value);
171 item_count =
172 ACPI_GET16(target) - ACPI_GET16(source);
173 } else {
174 /* No vendor data to worry about */
175
176 item_count = aml->large_header.resource_length +
177 sizeof(struct aml_resource_large_header) -
178 ACPI_GET16(source);
179 }
180
181 resource->length = resource->length + item_count;
182 ACPI_SET16(destination, item_count);
183 break;
184
185 case ACPI_RSC_COUNT_SERIAL_VEN:
186
187 item_count = ACPI_GET16(source) - info->value;
188
189 resource->length = resource->length + item_count;
190 ACPI_SET16(destination, item_count);
191 break;
192
193 case ACPI_RSC_COUNT_SERIAL_RES:
194
195 item_count = (aml_resource_length +
196 sizeof(struct aml_resource_large_header))
197 - ACPI_GET16(source) - info->value;
198
199 resource->length = resource->length + item_count;
200 ACPI_SET16(destination, item_count);
201 break;
202
203 case ACPI_RSC_LENGTH:
204
205 resource->length = resource->length + info->value;
206 break;
207
208 case ACPI_RSC_MOVE8:
209 case ACPI_RSC_MOVE16:
210 case ACPI_RSC_MOVE32:
211 case ACPI_RSC_MOVE64:
212 /*
213 * Raw data move. Use the Info value field unless item_count has
214 * been previously initialized via a COUNT opcode
215 */
216 if (info->value) {
217 item_count = info->value;
218 }
219 acpi_rs_move_data(destination, source, item_count,
220 info->opcode);
221 break;
222
223 case ACPI_RSC_MOVE_GPIO_PIN:
224
225 /* Generate and set the PIN data pointer */
226
227 target = (char *)ACPI_ADD_PTR(void, resource,
228 (resource->length -
229 item_count * 2));
230 *(u16 **)destination = ACPI_CAST_PTR(u16, target);
231
232 /* Copy the PIN data */
233
234 source = ACPI_ADD_PTR(void, aml, ACPI_GET16(source));
235 acpi_rs_move_data(target, source, item_count,
236 info->opcode);
237 break;
238
239 case ACPI_RSC_MOVE_GPIO_RES:
240
241 /* Generate and set the resource_source string pointer */
242
243 target = (char *)ACPI_ADD_PTR(void, resource,
244 (resource->length -
245 item_count));
246 *(u8 **)destination = ACPI_CAST_PTR(u8, target);
247
248 /* Copy the resource_source string */
249
250 source = ACPI_ADD_PTR(void, aml, ACPI_GET16(source));
251 acpi_rs_move_data(target, source, item_count,
252 info->opcode);
253 break;
254
255 case ACPI_RSC_MOVE_SERIAL_VEN:
256
257 /* Generate and set the Vendor Data pointer */
258
259 target = (char *)ACPI_ADD_PTR(void, resource,
260 (resource->length -
261 item_count));
262 *(u8 **)destination = ACPI_CAST_PTR(u8, target);
263
264 /* Copy the Vendor Data */
265
266 source = ACPI_ADD_PTR(void, aml, info->value);
267 acpi_rs_move_data(target, source, item_count,
268 info->opcode);
269 break;
270
271 case ACPI_RSC_MOVE_SERIAL_RES:
272
273 /* Generate and set the resource_source string pointer */
274
275 target = (char *)ACPI_ADD_PTR(void, resource,
276 (resource->length -
277 item_count));
278 *(u8 **)destination = ACPI_CAST_PTR(u8, target);
279
280 /* Copy the resource_source string */
281
282 source =
283 ACPI_ADD_PTR(void, aml,
284 (ACPI_GET16(source) + info->value));
285 acpi_rs_move_data(target, source, item_count,
286 info->opcode);
287 break;
288
289 case ACPI_RSC_SET8:
290
291 memset(destination, info->aml_offset, info->value);
292 break;
293
294 case ACPI_RSC_DATA8:
295
296 target = ACPI_ADD_PTR(char, resource, info->value);
297 memcpy(destination, source, ACPI_GET16(target));
298 break;
299
300 case ACPI_RSC_ADDRESS:
301 /*
302 * Common handler for address descriptor flags
303 */
304 if (!acpi_rs_get_address_common(resource, aml)) {
305 return_ACPI_STATUS
306 (AE_AML_INVALID_RESOURCE_TYPE);
307 }
308 break;
309
310 case ACPI_RSC_SOURCE:
311 /*
312 * Optional resource_source (Index and String)
313 */
314 resource->length +=
315 acpi_rs_get_resource_source(aml_resource_length,
316 info->value,
317 destination, aml, NULL);
318 break;
319
320 case ACPI_RSC_SOURCEX:
321 /*
322 * Optional resource_source (Index and String). This is the more
323 * complicated case used by the Interrupt() macro
324 */
325 target = ACPI_ADD_PTR(char, resource,
326 info->aml_offset +
327 (item_count * 4));
328
329 resource->length +=
330 acpi_rs_get_resource_source(aml_resource_length,
331 (acpi_rs_length)
332 (((item_count -
333 1) * sizeof(u32)) +
334 info->value),
335 destination, aml,
336 target);
337 break;
338
339 case ACPI_RSC_BITMASK:
340 /*
341 * 8-bit encoded bitmask (DMA macro)
342 */
343 item_count =
344 acpi_rs_decode_bitmask(ACPI_GET8(source),
345 destination);
346 if (item_count) {
347 resource->length += (item_count - 1);
348 }
349
350 target = ACPI_ADD_PTR(char, resource, info->value);
351 ACPI_SET8(target, item_count);
352 break;
353
354 case ACPI_RSC_BITMASK16:
355 /*
356 * 16-bit encoded bitmask (IRQ macro)
357 */
358 ACPI_MOVE_16_TO_16(&temp16, source);
359
360 item_count =
361 acpi_rs_decode_bitmask(temp16, destination);
362 if (item_count) {
363 resource->length += (item_count - 1);
364 }
365
366 target = ACPI_ADD_PTR(char, resource, info->value);
367 ACPI_SET8(target, item_count);
368 break;
369
370 case ACPI_RSC_EXIT_NE:
371 /*
372 * control - Exit conversion if not equal
373 */
374 switch (info->resource_offset) {
375 case ACPI_RSC_COMPARE_AML_LENGTH:
376
377 if (aml_resource_length != info->value) {
378 goto exit;
379 }
380 break;
381
382 case ACPI_RSC_COMPARE_VALUE:
383
384 if (ACPI_GET8(source) != info->value) {
385 goto exit;
386 }
387 break;
388
389 default:
390
391 ACPI_ERROR((AE_INFO,
392 "Invalid conversion sub-opcode"));
393 return_ACPI_STATUS(AE_BAD_PARAMETER);
394 }
395 break;
396
397 default:
398
399 ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
400 return_ACPI_STATUS(AE_BAD_PARAMETER);
401 }
402
403 count--;
404 info++;
405 }
406
407exit:
408 if (!flags_mode) {
409
410 /* Round the resource struct length up to the next boundary (32 or 64) */
411
412 resource->length = (u32)
413 ACPI_ROUND_UP_TO_NATIVE_WORD(resource->length);
414 }
415 return_ACPI_STATUS(AE_OK);
416}
417
418/*******************************************************************************
419 *
420 * FUNCTION: acpi_rs_convert_resource_to_aml
421 *
422 * PARAMETERS: resource - Pointer to the resource descriptor
423 * aml - Where the AML descriptor is returned
424 * info - Pointer to appropriate conversion table
425 *
426 * RETURN: Status
427 *
428 * DESCRIPTION: Convert an internal resource descriptor to the corresponding
429 * external AML resource descriptor.
430 *
431 ******************************************************************************/
432
433acpi_status
434acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
435 union aml_resource *aml,
436 struct acpi_rsconvert_info *info)
437{
438 void *source = NULL;
439 void *destination;
440 char *target;
441 acpi_rsdesc_size aml_length = 0;
442 u8 count;
443 u16 temp16 = 0;
444 u16 item_count = 0;
445
446 ACPI_FUNCTION_TRACE(rs_convert_resource_to_aml);
447
448 if (!info) {
449 return_ACPI_STATUS(AE_BAD_PARAMETER);
450 }
451
452 /*
453 * First table entry must be ACPI_RSC_INITxxx and must contain the
454 * table length (# of table entries)
455 */
456 count = INIT_TABLE_LENGTH(info);
457
458 while (count) {
459 /*
460 * Source is the internal resource descriptor,
461 * destination is the external AML byte stream buffer
462 */
463 source = ACPI_ADD_PTR(void, resource, info->resource_offset);
464 destination = ACPI_ADD_PTR(void, aml, info->aml_offset);
465
466 switch (info->opcode) {
467 case ACPI_RSC_INITSET:
468
469 memset(aml, 0, INIT_RESOURCE_LENGTH(info));
470 aml_length = INIT_RESOURCE_LENGTH(info);
471 acpi_rs_set_resource_header(INIT_RESOURCE_TYPE(info),
472 aml_length, aml);
473 break;
474
475 case ACPI_RSC_INITGET:
476 break;
477
478 case ACPI_RSC_FLAGINIT:
479 /*
480 * Clear the flag byte
481 */
482 ACPI_SET8(destination, 0);
483 break;
484
485 case ACPI_RSC_1BITFLAG:
486 /*
487 * Mask and shift the flag bit
488 */
489 ACPI_SET_BIT(*ACPI_CAST8(destination), (u8)
490 ((ACPI_GET8(source) & 0x01) << info->
491 value));
492 break;
493
494 case ACPI_RSC_2BITFLAG:
495 /*
496 * Mask and shift the flag bits
497 */
498 ACPI_SET_BIT(*ACPI_CAST8(destination), (u8)
499 ((ACPI_GET8(source) & 0x03) << info->
500 value));
501 break;
502
503 case ACPI_RSC_3BITFLAG:
504 /*
505 * Mask and shift the flag bits
506 */
507 ACPI_SET_BIT(*ACPI_CAST8(destination), (u8)
508 ((ACPI_GET8(source) & 0x07) << info->
509 value));
510 break;
511
512 case ACPI_RSC_COUNT:
513
514 item_count = ACPI_GET8(source);
515 ACPI_SET8(destination, item_count);
516
517 aml_length = (u16)
518 (aml_length + (info->value * (item_count - 1)));
519 break;
520
521 case ACPI_RSC_COUNT16:
522
523 item_count = ACPI_GET16(source);
524 aml_length = (u16) (aml_length + item_count);
525 acpi_rs_set_resource_length(aml_length, aml);
526 break;
527
528 case ACPI_RSC_COUNT_GPIO_PIN:
529
530 item_count = ACPI_GET16(source);
531 ACPI_SET16(destination, aml_length);
532
533 aml_length = (u16)(aml_length + item_count * 2);
534 target = ACPI_ADD_PTR(void, aml, info->value);
535 ACPI_SET16(target, aml_length);
536 acpi_rs_set_resource_length(aml_length, aml);
537 break;
538
539 case ACPI_RSC_COUNT_GPIO_VEN:
540
541 item_count = ACPI_GET16(source);
542 ACPI_SET16(destination, item_count);
543
544 aml_length =
545 (u16)(aml_length + (info->value * item_count));
546 acpi_rs_set_resource_length(aml_length, aml);
547 break;
548
549 case ACPI_RSC_COUNT_GPIO_RES:
550
551 /* Set resource source string length */
552
553 item_count = ACPI_GET16(source);
554 ACPI_SET16(destination, aml_length);
555
556 /* Compute offset for the Vendor Data */
557
558 aml_length = (u16)(aml_length + item_count);
559 target = ACPI_ADD_PTR(void, aml, info->value);
560
561 /* Set vendor offset only if there is vendor data */
562
563 ACPI_SET16(target, aml_length);
564
565 acpi_rs_set_resource_length(aml_length, aml);
566 break;
567
568 case ACPI_RSC_COUNT_SERIAL_VEN:
569
570 item_count = ACPI_GET16(source);
571 ACPI_SET16(destination, item_count + info->value);
572 aml_length = (u16)(aml_length + item_count);
573 acpi_rs_set_resource_length(aml_length, aml);
574 break;
575
576 case ACPI_RSC_COUNT_SERIAL_RES:
577
578 item_count = ACPI_GET16(source);
579 aml_length = (u16)(aml_length + item_count);
580 acpi_rs_set_resource_length(aml_length, aml);
581 break;
582
583 case ACPI_RSC_LENGTH:
584
585 acpi_rs_set_resource_length(info->value, aml);
586 break;
587
588 case ACPI_RSC_MOVE8:
589 case ACPI_RSC_MOVE16:
590 case ACPI_RSC_MOVE32:
591 case ACPI_RSC_MOVE64:
592
593 if (info->value) {
594 item_count = info->value;
595 }
596 acpi_rs_move_data(destination, source, item_count,
597 info->opcode);
598 break;
599
600 case ACPI_RSC_MOVE_GPIO_PIN:
601
602 destination = (char *)ACPI_ADD_PTR(void, aml,
603 ACPI_GET16
604 (destination));
605 source = *(u16 **)source;
606 acpi_rs_move_data(destination, source, item_count,
607 info->opcode);
608 break;
609
610 case ACPI_RSC_MOVE_GPIO_RES:
611
612 /* Used for both resource_source string and vendor_data */
613
614 destination = (char *)ACPI_ADD_PTR(void, aml,
615 ACPI_GET16
616 (destination));
617 source = *(u8 **)source;
618 acpi_rs_move_data(destination, source, item_count,
619 info->opcode);
620 break;
621
622 case ACPI_RSC_MOVE_SERIAL_VEN:
623
624 destination = (char *)ACPI_ADD_PTR(void, aml,
625 (aml_length -
626 item_count));
627 source = *(u8 **)source;
628 acpi_rs_move_data(destination, source, item_count,
629 info->opcode);
630 break;
631
632 case ACPI_RSC_MOVE_SERIAL_RES:
633
634 destination = (char *)ACPI_ADD_PTR(void, aml,
635 (aml_length -
636 item_count));
637 source = *(u8 **)source;
638 acpi_rs_move_data(destination, source, item_count,
639 info->opcode);
640 break;
641
642 case ACPI_RSC_ADDRESS:
643
644 /* Set the Resource Type, General Flags, and Type-Specific Flags */
645
646 acpi_rs_set_address_common(aml, resource);
647 break;
648
649 case ACPI_RSC_SOURCEX:
650 /*
651 * Optional resource_source (Index and String)
652 */
653 aml_length =
654 acpi_rs_set_resource_source(aml,
655 (acpi_rs_length)
656 aml_length, source);
657 acpi_rs_set_resource_length(aml_length, aml);
658 break;
659
660 case ACPI_RSC_SOURCE:
661 /*
662 * Optional resource_source (Index and String). This is the more
663 * complicated case used by the Interrupt() macro
664 */
665 aml_length =
666 acpi_rs_set_resource_source(aml, info->value,
667 source);
668 acpi_rs_set_resource_length(aml_length, aml);
669 break;
670
671 case ACPI_RSC_BITMASK:
672 /*
673 * 8-bit encoded bitmask (DMA macro)
674 */
675 ACPI_SET8(destination,
676 acpi_rs_encode_bitmask(source,
677 *ACPI_ADD_PTR(u8,
678 resource,
679 info->
680 value)));
681 break;
682
683 case ACPI_RSC_BITMASK16:
684 /*
685 * 16-bit encoded bitmask (IRQ macro)
686 */
687 temp16 =
688 acpi_rs_encode_bitmask(source,
689 *ACPI_ADD_PTR(u8, resource,
690 info->value));
691 ACPI_MOVE_16_TO_16(destination, &temp16);
692 break;
693
694 case ACPI_RSC_EXIT_LE:
695 /*
696 * control - Exit conversion if less than or equal
697 */
698 if (item_count <= info->value) {
699 goto exit;
700 }
701 break;
702
703 case ACPI_RSC_EXIT_NE:
704 /*
705 * control - Exit conversion if not equal
706 */
707 switch (COMPARE_OPCODE(info)) {
708 case ACPI_RSC_COMPARE_VALUE:
709
710 if (*ACPI_ADD_PTR(u8, resource,
711 COMPARE_TARGET(info)) !=
712 COMPARE_VALUE(info)) {
713 goto exit;
714 }
715 break;
716
717 default:
718
719 ACPI_ERROR((AE_INFO,
720 "Invalid conversion sub-opcode"));
721 return_ACPI_STATUS(AE_BAD_PARAMETER);
722 }
723 break;
724
725 case ACPI_RSC_EXIT_EQ:
726 /*
727 * control - Exit conversion if equal
728 */
729 if (*ACPI_ADD_PTR(u8, resource,
730 COMPARE_TARGET(info)) ==
731 COMPARE_VALUE(info)) {
732 goto exit;
733 }
734 break;
735
736 default:
737
738 ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
739 return_ACPI_STATUS(AE_BAD_PARAMETER);
740 }
741
742 count--;
743 info++;
744 }
745
746exit:
747 return_ACPI_STATUS(AE_OK);
748}
749
750#if 0
751/* Previous resource validations */
752
753if (aml->ext_address64.revision_ID != AML_RESOURCE_EXTENDED_ADDRESS_REVISION) {
754 return_ACPI_STATUS(AE_SUPPORT);
755}
756
757if (resource->data.start_dpf.performance_robustness >= 3) {
758 return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE);
759}
760
761if (((aml->irq.flags & 0x09) == 0x00) || ((aml->irq.flags & 0x09) == 0x09)) {
762 /*
763 * Only [active_high, edge_sensitive] or [active_low, level_sensitive]
764 * polarity/trigger interrupts are allowed (ACPI spec, section
765 * "IRQ Format"), so 0x00 and 0x09 are illegal.
766 */
767 ACPI_ERROR((AE_INFO,
768 "Invalid interrupt polarity/trigger in resource list, 0x%X",
769 aml->irq.flags));
770 return_ACPI_STATUS(AE_BAD_DATA);
771}
772
773resource->data.extended_irq.interrupt_count = temp8;
774if (temp8 < 1) {
775
776 /* Must have at least one IRQ */
777
778 return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
779}
780
781if (resource->data.dma.transfer == 0x03) {
782 ACPI_ERROR((AE_INFO, "Invalid DMA.Transfer preference (3)"));
783 return_ACPI_STATUS(AE_BAD_DATA);
784}
785#endif