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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 target = NULL;
74
75 /*
76 * Source is the external AML byte stream buffer,
77 * destination is the internal resource descriptor
78 */
79 source = ACPI_ADD_PTR(void, aml, info->aml_offset);
80 destination =
81 ACPI_ADD_PTR(void, resource, info->resource_offset);
82
83 switch (info->opcode) {
84 case ACPI_RSC_INITGET:
85 /*
86 * Get the resource type and the initial (minimum) length
87 */
88 memset(resource, 0, INIT_RESOURCE_LENGTH(info));
89 resource->type = INIT_RESOURCE_TYPE(info);
90 resource->length = INIT_RESOURCE_LENGTH(info);
91 break;
92
93 case ACPI_RSC_INITSET:
94 break;
95
96 case ACPI_RSC_FLAGINIT:
97
98 flags_mode = TRUE;
99 break;
100
101 case ACPI_RSC_1BITFLAG:
102 /*
103 * Mask and shift the flag bit
104 */
105 ACPI_SET8(destination,
106 ((ACPI_GET8(source) >> info->value) & 0x01));
107 break;
108
109 case ACPI_RSC_2BITFLAG:
110 /*
111 * Mask and shift the flag bits
112 */
113 ACPI_SET8(destination,
114 ((ACPI_GET8(source) >> info->value) & 0x03));
115 break;
116
117 case ACPI_RSC_3BITFLAG:
118 /*
119 * Mask and shift the flag bits
120 */
121 ACPI_SET8(destination,
122 ((ACPI_GET8(source) >> info->value) & 0x07));
123 break;
124
125 case ACPI_RSC_6BITFLAG:
126 /*
127 * Mask and shift the flag bits
128 */
129 ACPI_SET8(destination,
130 ((ACPI_GET8(source) >> info->value) & 0x3F));
131 break;
132
133 case ACPI_RSC_COUNT:
134
135 item_count = ACPI_GET8(source);
136 ACPI_SET8(destination, item_count);
137
138 resource->length = resource->length +
139 (info->value * (item_count - 1));
140 break;
141
142 case ACPI_RSC_COUNT16:
143
144 item_count = aml_resource_length;
145 ACPI_SET16(destination, item_count);
146
147 resource->length = resource->length +
148 (info->value * (item_count - 1));
149 break;
150
151 case ACPI_RSC_COUNT_GPIO_PIN:
152
153 target = ACPI_ADD_PTR(void, aml, info->value);
154 item_count = ACPI_GET16(target) - ACPI_GET16(source);
155
156 resource->length = resource->length + item_count;
157 item_count = item_count / 2;
158 ACPI_SET16(destination, item_count);
159 break;
160
161 case ACPI_RSC_COUNT_GPIO_VEN:
162
163 item_count = ACPI_GET8(source);
164 ACPI_SET8(destination, item_count);
165
166 resource->length =
167 resource->length + (info->value * item_count);
168 break;
169
170 case ACPI_RSC_COUNT_GPIO_RES:
171 /*
172 * Vendor data is optional (length/offset may both be zero)
173 * Examine vendor data length field first
174 */
175 target = ACPI_ADD_PTR(void, aml, (info->value + 2));
176 if (ACPI_GET16(target)) {
177
178 /* Use vendor offset to get resource source length */
179
180 target = ACPI_ADD_PTR(void, aml, info->value);
181 item_count =
182 ACPI_GET16(target) - ACPI_GET16(source);
183 } else {
184 /* No vendor data to worry about */
185
186 item_count = aml->large_header.resource_length +
187 sizeof(struct aml_resource_large_header) -
188 ACPI_GET16(source);
189 }
190
191 resource->length = resource->length + item_count;
192 ACPI_SET16(destination, item_count);
193 break;
194
195 case ACPI_RSC_COUNT_SERIAL_VEN:
196
197 ACPI_MOVE_16_TO_16(&temp16, source);
198 item_count = temp16 - info->value;
199
200 resource->length = resource->length + item_count;
201 ACPI_SET16(destination, item_count);
202 break;
203
204 case ACPI_RSC_COUNT_SERIAL_RES:
205
206 ACPI_MOVE_16_TO_16(&temp16, source);
207 item_count = (aml_resource_length +
208 sizeof(struct aml_resource_large_header))
209 - temp16 - info->value;
210
211 resource->length = resource->length + item_count;
212 ACPI_SET16(destination, item_count);
213 break;
214
215 case ACPI_RSC_LENGTH:
216
217 resource->length = resource->length + info->value;
218 break;
219
220 case ACPI_RSC_MOVE8:
221 case ACPI_RSC_MOVE16:
222 case ACPI_RSC_MOVE32:
223 case ACPI_RSC_MOVE64:
224 /*
225 * Raw data move. Use the Info value field unless item_count has
226 * been previously initialized via a COUNT opcode
227 */
228 if (info->value) {
229 item_count = info->value;
230 }
231 acpi_rs_move_data(destination, source, item_count,
232 info->opcode);
233 break;
234
235 case ACPI_RSC_MOVE_GPIO_PIN:
236
237 /* Generate and set the PIN data pointer */
238
239 target = (char *)ACPI_ADD_PTR(void, resource,
240 (resource->length -
241 item_count * 2));
242 *(u16 **)destination = ACPI_CAST_PTR(u16, target);
243
244 /* Copy the PIN data */
245
246 source = ACPI_ADD_PTR(void, aml, ACPI_GET16(source));
247 acpi_rs_move_data(target, source, item_count,
248 info->opcode);
249 break;
250
251 case ACPI_RSC_MOVE_GPIO_RES:
252
253 /* Generate and set the resource_source string pointer */
254
255 target = (char *)ACPI_ADD_PTR(void, resource,
256 (resource->length -
257 item_count));
258 *(u8 **)destination = ACPI_CAST_PTR(u8, target);
259
260 /* Copy the resource_source string */
261
262 source = ACPI_ADD_PTR(void, aml, ACPI_GET16(source));
263 acpi_rs_move_data(target, source, item_count,
264 info->opcode);
265 break;
266
267 case ACPI_RSC_MOVE_SERIAL_VEN:
268
269 /* Generate and set the Vendor Data pointer */
270
271 target = (char *)ACPI_ADD_PTR(void, resource,
272 (resource->length -
273 item_count));
274 *(u8 **)destination = ACPI_CAST_PTR(u8, target);
275
276 /* Copy the Vendor Data */
277
278 source = ACPI_ADD_PTR(void, aml, info->value);
279 acpi_rs_move_data(target, source, item_count,
280 info->opcode);
281 break;
282
283 case ACPI_RSC_MOVE_SERIAL_RES:
284
285 /* Generate and set the resource_source string pointer */
286
287 target = (char *)ACPI_ADD_PTR(void, resource,
288 (resource->length -
289 item_count));
290 *(u8 **)destination = ACPI_CAST_PTR(u8, target);
291
292 /* Copy the resource_source string */
293
294 ACPI_MOVE_16_TO_16(&temp16, source);
295 source =
296 ACPI_ADD_PTR(void, aml, (temp16 + info->value));
297 acpi_rs_move_data(target, source, item_count,
298 info->opcode);
299 break;
300
301 case ACPI_RSC_SET8:
302
303 memset(destination, info->aml_offset, info->value);
304 break;
305
306 case ACPI_RSC_DATA8:
307
308 target = ACPI_ADD_PTR(char, resource, info->value);
309 memcpy(destination, source, ACPI_GET16(target));
310 break;
311
312 case ACPI_RSC_ADDRESS:
313 /*
314 * Common handler for address descriptor flags
315 */
316 if (!acpi_rs_get_address_common(resource, aml)) {
317 return_ACPI_STATUS
318 (AE_AML_INVALID_RESOURCE_TYPE);
319 }
320 break;
321
322 case ACPI_RSC_SOURCE:
323 /*
324 * Optional resource_source (Index and String)
325 */
326 resource->length +=
327 acpi_rs_get_resource_source(aml_resource_length,
328 info->value,
329 destination, aml, NULL);
330 break;
331
332 case ACPI_RSC_SOURCEX:
333 /*
334 * Optional resource_source (Index and String). This is the more
335 * complicated case used by the Interrupt() macro
336 */
337 target = ACPI_ADD_PTR(char, resource,
338 info->aml_offset +
339 (item_count * 4));
340
341 resource->length +=
342 acpi_rs_get_resource_source(aml_resource_length,
343 (acpi_rs_length)
344 (((item_count -
345 1) * sizeof(u32)) +
346 info->value),
347 destination, aml,
348 target);
349 break;
350
351 case ACPI_RSC_BITMASK:
352 /*
353 * 8-bit encoded bitmask (DMA macro)
354 */
355 item_count =
356 acpi_rs_decode_bitmask(ACPI_GET8(source),
357 destination);
358 if (item_count) {
359 resource->length += (item_count - 1);
360 }
361
362 target = ACPI_ADD_PTR(char, resource, info->value);
363 ACPI_SET8(target, item_count);
364 break;
365
366 case ACPI_RSC_BITMASK16:
367 /*
368 * 16-bit encoded bitmask (IRQ macro)
369 */
370 ACPI_MOVE_16_TO_16(&temp16, source);
371
372 item_count =
373 acpi_rs_decode_bitmask(temp16, destination);
374 if (item_count) {
375 resource->length += (item_count - 1);
376 }
377
378 target = ACPI_ADD_PTR(char, resource, info->value);
379 ACPI_SET8(target, item_count);
380 break;
381
382 case ACPI_RSC_EXIT_NE:
383 /*
384 * control - Exit conversion if not equal
385 */
386 switch (info->resource_offset) {
387 case ACPI_RSC_COMPARE_AML_LENGTH:
388
389 if (aml_resource_length != info->value) {
390 goto exit;
391 }
392 break;
393
394 case ACPI_RSC_COMPARE_VALUE:
395
396 if (ACPI_GET8(source) != info->value) {
397 goto exit;
398 }
399 break;
400
401 default:
402
403 ACPI_ERROR((AE_INFO,
404 "Invalid conversion sub-opcode"));
405 return_ACPI_STATUS(AE_BAD_PARAMETER);
406 }
407 break;
408
409 default:
410
411 ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
412 return_ACPI_STATUS(AE_BAD_PARAMETER);
413 }
414
415 count--;
416 info++;
417 }
418
419exit:
420 if (!flags_mode) {
421
422 /* Round the resource struct length up to the next boundary (32 or 64) */
423
424 resource->length = (u32)
425 ACPI_ROUND_UP_TO_NATIVE_WORD(resource->length);
426 }
427 return_ACPI_STATUS(AE_OK);
428}
429
430/*******************************************************************************
431 *
432 * FUNCTION: acpi_rs_convert_resource_to_aml
433 *
434 * PARAMETERS: resource - Pointer to the resource descriptor
435 * aml - Where the AML descriptor is returned
436 * info - Pointer to appropriate conversion table
437 *
438 * RETURN: Status
439 *
440 * DESCRIPTION: Convert an internal resource descriptor to the corresponding
441 * external AML resource descriptor.
442 *
443 ******************************************************************************/
444
445acpi_status
446acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
447 union aml_resource *aml,
448 struct acpi_rsconvert_info *info)
449{
450 void *source = NULL;
451 void *destination;
452 char *target;
453 acpi_rsdesc_size aml_length = 0;
454 u8 count;
455 u16 temp16 = 0;
456 u16 item_count = 0;
457
458 ACPI_FUNCTION_TRACE(rs_convert_resource_to_aml);
459
460 if (!info) {
461 return_ACPI_STATUS(AE_BAD_PARAMETER);
462 }
463
464 /*
465 * First table entry must be ACPI_RSC_INITxxx and must contain the
466 * table length (# of table entries)
467 */
468 count = INIT_TABLE_LENGTH(info);
469
470 while (count) {
471 /*
472 * Source is the internal resource descriptor,
473 * destination is the external AML byte stream buffer
474 */
475 source = ACPI_ADD_PTR(void, resource, info->resource_offset);
476 destination = ACPI_ADD_PTR(void, aml, info->aml_offset);
477
478 switch (info->opcode) {
479 case ACPI_RSC_INITSET:
480
481 memset(aml, 0, INIT_RESOURCE_LENGTH(info));
482 aml_length = INIT_RESOURCE_LENGTH(info);
483 acpi_rs_set_resource_header(INIT_RESOURCE_TYPE(info),
484 aml_length, aml);
485 break;
486
487 case ACPI_RSC_INITGET:
488 break;
489
490 case ACPI_RSC_FLAGINIT:
491 /*
492 * Clear the flag byte
493 */
494 ACPI_SET8(destination, 0);
495 break;
496
497 case ACPI_RSC_1BITFLAG:
498 /*
499 * Mask and shift the flag bit
500 */
501 ACPI_SET_BIT(*ACPI_CAST8(destination), (u8)
502 ((ACPI_GET8(source) & 0x01) << info->
503 value));
504 break;
505
506 case ACPI_RSC_2BITFLAG:
507 /*
508 * Mask and shift the flag bits
509 */
510 ACPI_SET_BIT(*ACPI_CAST8(destination), (u8)
511 ((ACPI_GET8(source) & 0x03) << info->
512 value));
513 break;
514
515 case ACPI_RSC_3BITFLAG:
516 /*
517 * Mask and shift the flag bits
518 */
519 ACPI_SET_BIT(*ACPI_CAST8(destination), (u8)
520 ((ACPI_GET8(source) & 0x07) << info->
521 value));
522 break;
523
524 case ACPI_RSC_6BITFLAG:
525 /*
526 * Mask and shift the flag bits
527 */
528 ACPI_SET_BIT(*ACPI_CAST8(destination), (u8)
529 ((ACPI_GET8(source) & 0x3F) << info->
530 value));
531 break;
532
533 case ACPI_RSC_COUNT:
534
535 item_count = ACPI_GET8(source);
536 ACPI_SET8(destination, item_count);
537
538 aml_length = (u16)
539 (aml_length + (info->value * (item_count - 1)));
540 break;
541
542 case ACPI_RSC_COUNT16:
543
544 item_count = ACPI_GET16(source);
545 aml_length = (u16) (aml_length + item_count);
546 acpi_rs_set_resource_length(aml_length, aml);
547 break;
548
549 case ACPI_RSC_COUNT_GPIO_PIN:
550
551 item_count = ACPI_GET16(source);
552 ACPI_SET16(destination, aml_length);
553
554 aml_length = (u16)(aml_length + item_count * 2);
555 target = ACPI_ADD_PTR(void, aml, info->value);
556 ACPI_SET16(target, aml_length);
557 acpi_rs_set_resource_length(aml_length, aml);
558 break;
559
560 case ACPI_RSC_COUNT_GPIO_VEN:
561
562 item_count = ACPI_GET16(source);
563 ACPI_SET16(destination, item_count);
564
565 aml_length =
566 (u16)(aml_length + (info->value * item_count));
567 acpi_rs_set_resource_length(aml_length, aml);
568 break;
569
570 case ACPI_RSC_COUNT_GPIO_RES:
571
572 /* Set resource source string length */
573
574 item_count = ACPI_GET16(source);
575 ACPI_SET16(destination, aml_length);
576
577 /* Compute offset for the Vendor Data */
578
579 aml_length = (u16)(aml_length + item_count);
580 target = ACPI_ADD_PTR(void, aml, info->value);
581
582 /* Set vendor offset only if there is vendor data */
583
584 ACPI_SET16(target, aml_length);
585
586 acpi_rs_set_resource_length(aml_length, aml);
587 break;
588
589 case ACPI_RSC_COUNT_SERIAL_VEN:
590
591 item_count = ACPI_GET16(source);
592 ACPI_SET16(destination, item_count + info->value);
593 aml_length = (u16)(aml_length + item_count);
594 acpi_rs_set_resource_length(aml_length, aml);
595 break;
596
597 case ACPI_RSC_COUNT_SERIAL_RES:
598
599 item_count = ACPI_GET16(source);
600 aml_length = (u16)(aml_length + item_count);
601 acpi_rs_set_resource_length(aml_length, aml);
602 break;
603
604 case ACPI_RSC_LENGTH:
605
606 acpi_rs_set_resource_length(info->value, aml);
607 break;
608
609 case ACPI_RSC_MOVE8:
610 case ACPI_RSC_MOVE16:
611 case ACPI_RSC_MOVE32:
612 case ACPI_RSC_MOVE64:
613
614 if (info->value) {
615 item_count = info->value;
616 }
617 acpi_rs_move_data(destination, source, item_count,
618 info->opcode);
619 break;
620
621 case ACPI_RSC_MOVE_GPIO_PIN:
622
623 destination = (char *)ACPI_ADD_PTR(void, aml,
624 ACPI_GET16
625 (destination));
626 source = *(u16 **)source;
627 acpi_rs_move_data(destination, source, item_count,
628 info->opcode);
629 break;
630
631 case ACPI_RSC_MOVE_GPIO_RES:
632
633 /* Used for both resource_source string and vendor_data */
634
635 destination = (char *)ACPI_ADD_PTR(void, aml,
636 ACPI_GET16
637 (destination));
638 source = *(u8 **)source;
639 acpi_rs_move_data(destination, source, item_count,
640 info->opcode);
641 break;
642
643 case ACPI_RSC_MOVE_SERIAL_VEN:
644
645 destination = (char *)ACPI_ADD_PTR(void, aml,
646 (aml_length -
647 item_count));
648 source = *(u8 **)source;
649 acpi_rs_move_data(destination, source, item_count,
650 info->opcode);
651 break;
652
653 case ACPI_RSC_MOVE_SERIAL_RES:
654
655 destination = (char *)ACPI_ADD_PTR(void, aml,
656 (aml_length -
657 item_count));
658 source = *(u8 **)source;
659 acpi_rs_move_data(destination, source, item_count,
660 info->opcode);
661 break;
662
663 case ACPI_RSC_ADDRESS:
664
665 /* Set the Resource Type, General Flags, and Type-Specific Flags */
666
667 acpi_rs_set_address_common(aml, resource);
668 break;
669
670 case ACPI_RSC_SOURCEX:
671 /*
672 * Optional resource_source (Index and String)
673 */
674 aml_length =
675 acpi_rs_set_resource_source(aml,
676 (acpi_rs_length)
677 aml_length, source);
678 acpi_rs_set_resource_length(aml_length, aml);
679 break;
680
681 case ACPI_RSC_SOURCE:
682 /*
683 * Optional resource_source (Index and String). This is the more
684 * complicated case used by the Interrupt() macro
685 */
686 aml_length =
687 acpi_rs_set_resource_source(aml, info->value,
688 source);
689 acpi_rs_set_resource_length(aml_length, aml);
690 break;
691
692 case ACPI_RSC_BITMASK:
693 /*
694 * 8-bit encoded bitmask (DMA macro)
695 */
696 ACPI_SET8(destination,
697 acpi_rs_encode_bitmask(source,
698 *ACPI_ADD_PTR(u8,
699 resource,
700 info->
701 value)));
702 break;
703
704 case ACPI_RSC_BITMASK16:
705 /*
706 * 16-bit encoded bitmask (IRQ macro)
707 */
708 temp16 =
709 acpi_rs_encode_bitmask(source,
710 *ACPI_ADD_PTR(u8, resource,
711 info->value));
712 ACPI_MOVE_16_TO_16(destination, &temp16);
713 break;
714
715 case ACPI_RSC_EXIT_LE:
716 /*
717 * control - Exit conversion if less than or equal
718 */
719 if (item_count <= info->value) {
720 goto exit;
721 }
722 break;
723
724 case ACPI_RSC_EXIT_NE:
725 /*
726 * control - Exit conversion if not equal
727 */
728 switch (COMPARE_OPCODE(info)) {
729 case ACPI_RSC_COMPARE_VALUE:
730
731 if (*ACPI_ADD_PTR(u8, resource,
732 COMPARE_TARGET(info)) !=
733 COMPARE_VALUE(info)) {
734 goto exit;
735 }
736 break;
737
738 default:
739
740 ACPI_ERROR((AE_INFO,
741 "Invalid conversion sub-opcode"));
742 return_ACPI_STATUS(AE_BAD_PARAMETER);
743 }
744 break;
745
746 case ACPI_RSC_EXIT_EQ:
747 /*
748 * control - Exit conversion if equal
749 */
750 if (*ACPI_ADD_PTR(u8, resource,
751 COMPARE_TARGET(info)) ==
752 COMPARE_VALUE(info)) {
753 goto exit;
754 }
755 break;
756
757 default:
758
759 ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
760 return_ACPI_STATUS(AE_BAD_PARAMETER);
761 }
762
763 count--;
764 info++;
765 }
766
767exit:
768 return_ACPI_STATUS(AE_OK);
769}
770
771#if 0
772/* Previous resource validations */
773
774if (aml->ext_address64.revision_ID != AML_RESOURCE_EXTENDED_ADDRESS_REVISION) {
775 return_ACPI_STATUS(AE_SUPPORT);
776}
777
778if (resource->data.start_dpf.performance_robustness >= 3) {
779 return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE);
780}
781
782if (((aml->irq.flags & 0x09) == 0x00) || ((aml->irq.flags & 0x09) == 0x09)) {
783 /*
784 * Only [active_high, edge_sensitive] or [active_low, level_sensitive]
785 * polarity/trigger interrupts are allowed (ACPI spec, section
786 * "IRQ Format"), so 0x00 and 0x09 are illegal.
787 */
788 ACPI_ERROR((AE_INFO,
789 "Invalid interrupt polarity/trigger in resource list, 0x%X",
790 aml->irq.flags));
791 return_ACPI_STATUS(AE_BAD_DATA);
792}
793
794resource->data.extended_irq.interrupt_count = temp8;
795if (temp8 < 1) {
796
797 /* Must have at least one IRQ */
798
799 return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
800}
801
802if (resource->data.dma.transfer == 0x03) {
803 ACPI_ERROR((AE_INFO, "Invalid DMA.Transfer preference (3)"));
804 return_ACPI_STATUS(AE_BAD_DATA);
805}
806#endif