1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23#include <linux/kernel.h>
24#include <linux/acpi.h>
25#include <linux/pci.h>
26#include <linux/pnp.h>
27#include "../base.h"
28#include "pnpacpi.h"
29
30#ifdef CONFIG_IA64
31#define valid_IRQ(i) (1)
32#else
33#define valid_IRQ(i) (((i) != 0) && ((i) != 2))
34#endif
35
36
37
38
39static int irq_flags(int triggering, int polarity, int shareable)
40{
41 int flags;
42
43 if (triggering == ACPI_LEVEL_SENSITIVE) {
44 if (polarity == ACPI_ACTIVE_LOW)
45 flags = IORESOURCE_IRQ_LOWLEVEL;
46 else
47 flags = IORESOURCE_IRQ_HIGHLEVEL;
48 } else {
49 if (polarity == ACPI_ACTIVE_LOW)
50 flags = IORESOURCE_IRQ_LOWEDGE;
51 else
52 flags = IORESOURCE_IRQ_HIGHEDGE;
53 }
54
55 if (shareable == ACPI_SHARED)
56 flags |= IORESOURCE_IRQ_SHAREABLE;
57
58 return flags;
59}
60
61static void decode_irq_flags(struct pnp_dev *dev, int flags, int *triggering,
62 int *polarity, int *shareable)
63{
64 switch (flags & (IORESOURCE_IRQ_LOWLEVEL | IORESOURCE_IRQ_HIGHLEVEL |
65 IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE)) {
66 case IORESOURCE_IRQ_LOWLEVEL:
67 *triggering = ACPI_LEVEL_SENSITIVE;
68 *polarity = ACPI_ACTIVE_LOW;
69 break;
70 case IORESOURCE_IRQ_HIGHLEVEL:
71 *triggering = ACPI_LEVEL_SENSITIVE;
72 *polarity = ACPI_ACTIVE_HIGH;
73 break;
74 case IORESOURCE_IRQ_LOWEDGE:
75 *triggering = ACPI_EDGE_SENSITIVE;
76 *polarity = ACPI_ACTIVE_LOW;
77 break;
78 case IORESOURCE_IRQ_HIGHEDGE:
79 *triggering = ACPI_EDGE_SENSITIVE;
80 *polarity = ACPI_ACTIVE_HIGH;
81 break;
82 default:
83 dev_err(&dev->dev, "can't encode invalid IRQ mode %#x\n",
84 flags);
85 *triggering = ACPI_EDGE_SENSITIVE;
86 *polarity = ACPI_ACTIVE_HIGH;
87 break;
88 }
89
90 if (flags & IORESOURCE_IRQ_SHAREABLE)
91 *shareable = ACPI_SHARED;
92 else
93 *shareable = ACPI_EXCLUSIVE;
94}
95
96static void pnpacpi_parse_allocated_irqresource(struct pnp_dev *dev,
97 u32 gsi, int triggering,
98 int polarity, int shareable)
99{
100 int irq, flags;
101 int p, t;
102
103 if (!valid_IRQ(gsi)) {
104 pnp_add_irq_resource(dev, gsi, IORESOURCE_DISABLED);
105 return;
106 }
107
108
109
110
111
112
113 if (!acpi_get_override_irq(gsi, &t, &p)) {
114 t = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
115 p = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
116
117 if (triggering != t || polarity != p) {
118 dev_warn(&dev->dev, "IRQ %d override to %s, %s\n",
119 gsi, t ? "edge":"level", p ? "low":"high");
120 triggering = t;
121 polarity = p;
122 }
123 }
124
125 flags = irq_flags(triggering, polarity, shareable);
126 irq = acpi_register_gsi(&dev->dev, gsi, triggering, polarity);
127 if (irq >= 0)
128 pcibios_penalize_isa_irq(irq, 1);
129 else
130 flags |= IORESOURCE_DISABLED;
131
132 pnp_add_irq_resource(dev, irq, flags);
133}
134
135static int dma_flags(struct pnp_dev *dev, int type, int bus_master,
136 int transfer)
137{
138 int flags = 0;
139
140 if (bus_master)
141 flags |= IORESOURCE_DMA_MASTER;
142 switch (type) {
143 case ACPI_COMPATIBILITY:
144 flags |= IORESOURCE_DMA_COMPATIBLE;
145 break;
146 case ACPI_TYPE_A:
147 flags |= IORESOURCE_DMA_TYPEA;
148 break;
149 case ACPI_TYPE_B:
150 flags |= IORESOURCE_DMA_TYPEB;
151 break;
152 case ACPI_TYPE_F:
153 flags |= IORESOURCE_DMA_TYPEF;
154 break;
155 default:
156
157 flags |= IORESOURCE_DMA_COMPATIBLE;
158 dev_err(&dev->dev, "invalid DMA type %d\n", type);
159 }
160 switch (transfer) {
161 case ACPI_TRANSFER_8:
162 flags |= IORESOURCE_DMA_8BIT;
163 break;
164 case ACPI_TRANSFER_8_16:
165 flags |= IORESOURCE_DMA_8AND16BIT;
166 break;
167 case ACPI_TRANSFER_16:
168 flags |= IORESOURCE_DMA_16BIT;
169 break;
170 default:
171
172 flags |= IORESOURCE_DMA_8AND16BIT;
173 dev_err(&dev->dev, "invalid DMA transfer type %d\n", transfer);
174 }
175
176 return flags;
177}
178
179static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, u64 start,
180 u64 len, int io_decode)
181{
182 int flags = 0;
183 u64 end = start + len - 1;
184
185 if (io_decode == ACPI_DECODE_16)
186 flags |= IORESOURCE_IO_16BIT_ADDR;
187 if (len == 0 || end >= 0x10003)
188 flags |= IORESOURCE_DISABLED;
189
190 pnp_add_io_resource(dev, start, end, flags);
191}
192
193
194
195
196
197
198
199
200static struct acpi_vendor_uuid hp_ccsr_uuid = {
201 .subtype = 2,
202 .data = { 0xf9, 0xad, 0xe9, 0x69, 0x4f, 0x92, 0x5f, 0xab, 0xf6, 0x4a,
203 0x24, 0xd2, 0x01, 0x37, 0x0e, 0xad },
204};
205
206static int vendor_resource_matches(struct pnp_dev *dev,
207 struct acpi_resource_vendor_typed *vendor,
208 struct acpi_vendor_uuid *match,
209 int expected_len)
210{
211 int uuid_len = sizeof(vendor->uuid);
212 u8 uuid_subtype = vendor->uuid_subtype;
213 u8 *uuid = vendor->uuid;
214 int actual_len;
215
216
217 actual_len = vendor->byte_length - uuid_len - 1;
218
219 if (uuid_subtype == match->subtype &&
220 uuid_len == sizeof(match->data) &&
221 memcmp(uuid, match->data, uuid_len) == 0) {
222 if (expected_len && expected_len != actual_len) {
223 dev_err(&dev->dev, "wrong vendor descriptor size; "
224 "expected %d, found %d bytes\n",
225 expected_len, actual_len);
226 return 0;
227 }
228
229 return 1;
230 }
231
232 return 0;
233}
234
235static void pnpacpi_parse_allocated_vendor(struct pnp_dev *dev,
236 struct acpi_resource_vendor_typed *vendor)
237{
238 if (vendor_resource_matches(dev, vendor, &hp_ccsr_uuid, 16)) {
239 u64 start, length;
240
241 memcpy(&start, vendor->byte_data, sizeof(start));
242 memcpy(&length, vendor->byte_data + 8, sizeof(length));
243
244 pnp_add_mem_resource(dev, start, start + length - 1, 0);
245 }
246}
247
248static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev,
249 u64 start, u64 len,
250 int write_protect)
251{
252 int flags = 0;
253 u64 end = start + len - 1;
254
255 if (len == 0)
256 flags |= IORESOURCE_DISABLED;
257 if (write_protect == ACPI_READ_WRITE_MEMORY)
258 flags |= IORESOURCE_MEM_WRITEABLE;
259
260 pnp_add_mem_resource(dev, start, end, flags);
261}
262
263static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,
264 struct acpi_resource *res)
265{
266 struct acpi_resource_address64 addr, *p = &addr;
267 acpi_status status;
268
269 status = acpi_resource_to_address64(res, p);
270 if (!ACPI_SUCCESS(status)) {
271 dev_warn(&dev->dev, "failed to convert resource type %d\n",
272 res->type);
273 return;
274 }
275
276 if (p->producer_consumer == ACPI_PRODUCER)
277 return;
278
279 if (p->resource_type == ACPI_MEMORY_RANGE)
280 pnpacpi_parse_allocated_memresource(dev,
281 p->minimum, p->address_length,
282 p->info.mem.write_protect);
283 else if (p->resource_type == ACPI_IO_RANGE)
284 pnpacpi_parse_allocated_ioresource(dev,
285 p->minimum, p->address_length,
286 p->granularity == 0xfff ? ACPI_DECODE_10 :
287 ACPI_DECODE_16);
288}
289
290static void pnpacpi_parse_allocated_ext_address_space(struct pnp_dev *dev,
291 struct acpi_resource *res)
292{
293 struct acpi_resource_extended_address64 *p = &res->data.ext_address64;
294
295 if (p->producer_consumer == ACPI_PRODUCER)
296 return;
297
298 if (p->resource_type == ACPI_MEMORY_RANGE)
299 pnpacpi_parse_allocated_memresource(dev,
300 p->minimum, p->address_length,
301 p->info.mem.write_protect);
302 else if (p->resource_type == ACPI_IO_RANGE)
303 pnpacpi_parse_allocated_ioresource(dev,
304 p->minimum, p->address_length,
305 p->granularity == 0xfff ? ACPI_DECODE_10 :
306 ACPI_DECODE_16);
307}
308
309static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
310 void *data)
311{
312 struct pnp_dev *dev = data;
313 struct acpi_resource_irq *irq;
314 struct acpi_resource_dma *dma;
315 struct acpi_resource_io *io;
316 struct acpi_resource_fixed_io *fixed_io;
317 struct acpi_resource_vendor_typed *vendor_typed;
318 struct acpi_resource_memory24 *memory24;
319 struct acpi_resource_memory32 *memory32;
320 struct acpi_resource_fixed_memory32 *fixed_memory32;
321 struct acpi_resource_extended_irq *extended_irq;
322 int i, flags;
323
324 switch (res->type) {
325 case ACPI_RESOURCE_TYPE_IRQ:
326
327
328
329
330 irq = &res->data.irq;
331 if (irq->interrupt_count == 0)
332 pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED);
333 else {
334 for (i = 0; i < irq->interrupt_count; i++) {
335 pnpacpi_parse_allocated_irqresource(dev,
336 irq->interrupts[i],
337 irq->triggering,
338 irq->polarity,
339 irq->sharable);
340 }
341
342
343
344
345
346
347 if (pnp_can_write(dev) && irq->interrupt_count > 1) {
348 dev_warn(&dev->dev, "multiple interrupts in "
349 "_CRS descriptor; configuration can't "
350 "be changed\n");
351 dev->capabilities &= ~PNP_WRITE;
352 }
353 }
354 break;
355
356 case ACPI_RESOURCE_TYPE_DMA:
357 dma = &res->data.dma;
358 if (dma->channel_count > 0 && dma->channels[0] != (u8) -1)
359 flags = dma_flags(dev, dma->type, dma->bus_master,
360 dma->transfer);
361 else
362 flags = IORESOURCE_DISABLED;
363 pnp_add_dma_resource(dev, dma->channels[0], flags);
364 break;
365
366 case ACPI_RESOURCE_TYPE_IO:
367 io = &res->data.io;
368 pnpacpi_parse_allocated_ioresource(dev,
369 io->minimum,
370 io->address_length,
371 io->io_decode);
372 break;
373
374 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
375 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
376 break;
377
378 case ACPI_RESOURCE_TYPE_FIXED_IO:
379 fixed_io = &res->data.fixed_io;
380 pnpacpi_parse_allocated_ioresource(dev,
381 fixed_io->address,
382 fixed_io->address_length,
383 ACPI_DECODE_10);
384 break;
385
386 case ACPI_RESOURCE_TYPE_VENDOR:
387 vendor_typed = &res->data.vendor_typed;
388 pnpacpi_parse_allocated_vendor(dev, vendor_typed);
389 break;
390
391 case ACPI_RESOURCE_TYPE_END_TAG:
392 break;
393
394 case ACPI_RESOURCE_TYPE_MEMORY24:
395 memory24 = &res->data.memory24;
396 pnpacpi_parse_allocated_memresource(dev,
397 memory24->minimum,
398 memory24->address_length,
399 memory24->write_protect);
400 break;
401 case ACPI_RESOURCE_TYPE_MEMORY32:
402 memory32 = &res->data.memory32;
403 pnpacpi_parse_allocated_memresource(dev,
404 memory32->minimum,
405 memory32->address_length,
406 memory32->write_protect);
407 break;
408 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
409 fixed_memory32 = &res->data.fixed_memory32;
410 pnpacpi_parse_allocated_memresource(dev,
411 fixed_memory32->address,
412 fixed_memory32->address_length,
413 fixed_memory32->write_protect);
414 break;
415 case ACPI_RESOURCE_TYPE_ADDRESS16:
416 case ACPI_RESOURCE_TYPE_ADDRESS32:
417 case ACPI_RESOURCE_TYPE_ADDRESS64:
418 pnpacpi_parse_allocated_address_space(dev, res);
419 break;
420
421 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
422 pnpacpi_parse_allocated_ext_address_space(dev, res);
423 break;
424
425 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
426 extended_irq = &res->data.extended_irq;
427
428 if (extended_irq->interrupt_count == 0)
429 pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED);
430 else {
431 for (i = 0; i < extended_irq->interrupt_count; i++) {
432 pnpacpi_parse_allocated_irqresource(dev,
433 extended_irq->interrupts[i],
434 extended_irq->triggering,
435 extended_irq->polarity,
436 extended_irq->sharable);
437 }
438
439
440
441
442
443
444 if (pnp_can_write(dev) &&
445 extended_irq->interrupt_count > 1) {
446 dev_warn(&dev->dev, "multiple interrupts in "
447 "_CRS descriptor; configuration can't "
448 "be changed\n");
449 dev->capabilities &= ~PNP_WRITE;
450 }
451 }
452 break;
453
454 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
455 break;
456
457 default:
458 dev_warn(&dev->dev, "unknown resource type %d in _CRS\n",
459 res->type);
460 return AE_ERROR;
461 }
462
463 return AE_OK;
464}
465
466int pnpacpi_parse_allocated_resource(struct pnp_dev *dev)
467{
468 acpi_handle handle = dev->data;
469 acpi_status status;
470
471 pnp_dbg(&dev->dev, "parse allocated resources\n");
472
473 pnp_init_resources(dev);
474
475 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
476 pnpacpi_allocated_resource, dev);
477
478 if (ACPI_FAILURE(status)) {
479 if (status != AE_NOT_FOUND)
480 dev_err(&dev->dev, "can't evaluate _CRS: %d", status);
481 return -EPERM;
482 }
483 return 0;
484}
485
486static __init void pnpacpi_parse_dma_option(struct pnp_dev *dev,
487 unsigned int option_flags,
488 struct acpi_resource_dma *p)
489{
490 int i;
491 unsigned char map = 0, flags;
492
493 if (p->channel_count == 0)
494 return;
495
496 for (i = 0; i < p->channel_count; i++)
497 map |= 1 << p->channels[i];
498
499 flags = dma_flags(dev, p->type, p->bus_master, p->transfer);
500 pnp_register_dma_resource(dev, option_flags, map, flags);
501}
502
503static __init void pnpacpi_parse_irq_option(struct pnp_dev *dev,
504 unsigned int option_flags,
505 struct acpi_resource_irq *p)
506{
507 int i;
508 pnp_irq_mask_t map;
509 unsigned char flags;
510
511 if (p->interrupt_count == 0)
512 return;
513
514 bitmap_zero(map.bits, PNP_IRQ_NR);
515 for (i = 0; i < p->interrupt_count; i++)
516 if (p->interrupts[i])
517 __set_bit(p->interrupts[i], map.bits);
518
519 flags = irq_flags(p->triggering, p->polarity, p->sharable);
520 pnp_register_irq_resource(dev, option_flags, &map, flags);
521}
522
523static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev,
524 unsigned int option_flags,
525 struct acpi_resource_extended_irq *p)
526{
527 int i;
528 pnp_irq_mask_t map;
529 unsigned char flags;
530
531 if (p->interrupt_count == 0)
532 return;
533
534 bitmap_zero(map.bits, PNP_IRQ_NR);
535 for (i = 0; i < p->interrupt_count; i++) {
536 if (p->interrupts[i]) {
537 if (p->interrupts[i] < PNP_IRQ_NR)
538 __set_bit(p->interrupts[i], map.bits);
539 else
540 dev_err(&dev->dev, "ignoring IRQ %d option "
541 "(too large for %d entry bitmap)\n",
542 p->interrupts[i], PNP_IRQ_NR);
543 }
544 }
545
546 flags = irq_flags(p->triggering, p->polarity, p->sharable);
547 pnp_register_irq_resource(dev, option_flags, &map, flags);
548}
549
550static __init void pnpacpi_parse_port_option(struct pnp_dev *dev,
551 unsigned int option_flags,
552 struct acpi_resource_io *io)
553{
554 unsigned char flags = 0;
555
556 if (io->address_length == 0)
557 return;
558
559 if (io->io_decode == ACPI_DECODE_16)
560 flags = IORESOURCE_IO_16BIT_ADDR;
561 pnp_register_port_resource(dev, option_flags, io->minimum, io->maximum,
562 io->alignment, io->address_length, flags);
563}
564
565static __init void pnpacpi_parse_fixed_port_option(struct pnp_dev *dev,
566 unsigned int option_flags,
567 struct acpi_resource_fixed_io *io)
568{
569 if (io->address_length == 0)
570 return;
571
572 pnp_register_port_resource(dev, option_flags, io->address, io->address,
573 0, io->address_length, IORESOURCE_IO_FIXED);
574}
575
576static __init void pnpacpi_parse_mem24_option(struct pnp_dev *dev,
577 unsigned int option_flags,
578 struct acpi_resource_memory24 *p)
579{
580 unsigned char flags = 0;
581
582 if (p->address_length == 0)
583 return;
584
585 if (p->write_protect == ACPI_READ_WRITE_MEMORY)
586 flags = IORESOURCE_MEM_WRITEABLE;
587 pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
588 p->alignment, p->address_length, flags);
589}
590
591static __init void pnpacpi_parse_mem32_option(struct pnp_dev *dev,
592 unsigned int option_flags,
593 struct acpi_resource_memory32 *p)
594{
595 unsigned char flags = 0;
596
597 if (p->address_length == 0)
598 return;
599
600 if (p->write_protect == ACPI_READ_WRITE_MEMORY)
601 flags = IORESOURCE_MEM_WRITEABLE;
602 pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
603 p->alignment, p->address_length, flags);
604}
605
606static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_dev *dev,
607 unsigned int option_flags,
608 struct acpi_resource_fixed_memory32 *p)
609{
610 unsigned char flags = 0;
611
612 if (p->address_length == 0)
613 return;
614
615 if (p->write_protect == ACPI_READ_WRITE_MEMORY)
616 flags = IORESOURCE_MEM_WRITEABLE;
617 pnp_register_mem_resource(dev, option_flags, p->address, p->address,
618 0, p->address_length, flags);
619}
620
621static __init void pnpacpi_parse_address_option(struct pnp_dev *dev,
622 unsigned int option_flags,
623 struct acpi_resource *r)
624{
625 struct acpi_resource_address64 addr, *p = &addr;
626 acpi_status status;
627 unsigned char flags = 0;
628
629 status = acpi_resource_to_address64(r, p);
630 if (ACPI_FAILURE(status)) {
631 dev_warn(&dev->dev, "can't convert resource type %d\n",
632 r->type);
633 return;
634 }
635
636 if (p->address_length == 0)
637 return;
638
639 if (p->resource_type == ACPI_MEMORY_RANGE) {
640 if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY)
641 flags = IORESOURCE_MEM_WRITEABLE;
642 pnp_register_mem_resource(dev, option_flags, p->minimum,
643 p->minimum, 0, p->address_length,
644 flags);
645 } else if (p->resource_type == ACPI_IO_RANGE)
646 pnp_register_port_resource(dev, option_flags, p->minimum,
647 p->minimum, 0, p->address_length,
648 IORESOURCE_IO_FIXED);
649}
650
651static __init void pnpacpi_parse_ext_address_option(struct pnp_dev *dev,
652 unsigned int option_flags,
653 struct acpi_resource *r)
654{
655 struct acpi_resource_extended_address64 *p = &r->data.ext_address64;
656 unsigned char flags = 0;
657
658 if (p->address_length == 0)
659 return;
660
661 if (p->resource_type == ACPI_MEMORY_RANGE) {
662 if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY)
663 flags = IORESOURCE_MEM_WRITEABLE;
664 pnp_register_mem_resource(dev, option_flags, p->minimum,
665 p->minimum, 0, p->address_length,
666 flags);
667 } else if (p->resource_type == ACPI_IO_RANGE)
668 pnp_register_port_resource(dev, option_flags, p->minimum,
669 p->minimum, 0, p->address_length,
670 IORESOURCE_IO_FIXED);
671}
672
673struct acpipnp_parse_option_s {
674 struct pnp_dev *dev;
675 unsigned int option_flags;
676};
677
678static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
679 void *data)
680{
681 int priority;
682 struct acpipnp_parse_option_s *parse_data = data;
683 struct pnp_dev *dev = parse_data->dev;
684 unsigned int option_flags = parse_data->option_flags;
685
686 switch (res->type) {
687 case ACPI_RESOURCE_TYPE_IRQ:
688 pnpacpi_parse_irq_option(dev, option_flags, &res->data.irq);
689 break;
690
691 case ACPI_RESOURCE_TYPE_DMA:
692 pnpacpi_parse_dma_option(dev, option_flags, &res->data.dma);
693 break;
694
695 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
696 switch (res->data.start_dpf.compatibility_priority) {
697 case ACPI_GOOD_CONFIGURATION:
698 priority = PNP_RES_PRIORITY_PREFERRED;
699 break;
700
701 case ACPI_ACCEPTABLE_CONFIGURATION:
702 priority = PNP_RES_PRIORITY_ACCEPTABLE;
703 break;
704
705 case ACPI_SUB_OPTIMAL_CONFIGURATION:
706 priority = PNP_RES_PRIORITY_FUNCTIONAL;
707 break;
708 default:
709 priority = PNP_RES_PRIORITY_INVALID;
710 break;
711 }
712 parse_data->option_flags = pnp_new_dependent_set(dev, priority);
713 break;
714
715 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
716 parse_data->option_flags = 0;
717 break;
718
719 case ACPI_RESOURCE_TYPE_IO:
720 pnpacpi_parse_port_option(dev, option_flags, &res->data.io);
721 break;
722
723 case ACPI_RESOURCE_TYPE_FIXED_IO:
724 pnpacpi_parse_fixed_port_option(dev, option_flags,
725 &res->data.fixed_io);
726 break;
727
728 case ACPI_RESOURCE_TYPE_VENDOR:
729 case ACPI_RESOURCE_TYPE_END_TAG:
730 break;
731
732 case ACPI_RESOURCE_TYPE_MEMORY24:
733 pnpacpi_parse_mem24_option(dev, option_flags,
734 &res->data.memory24);
735 break;
736
737 case ACPI_RESOURCE_TYPE_MEMORY32:
738 pnpacpi_parse_mem32_option(dev, option_flags,
739 &res->data.memory32);
740 break;
741
742 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
743 pnpacpi_parse_fixed_mem32_option(dev, option_flags,
744 &res->data.fixed_memory32);
745 break;
746
747 case ACPI_RESOURCE_TYPE_ADDRESS16:
748 case ACPI_RESOURCE_TYPE_ADDRESS32:
749 case ACPI_RESOURCE_TYPE_ADDRESS64:
750 pnpacpi_parse_address_option(dev, option_flags, res);
751 break;
752
753 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
754 pnpacpi_parse_ext_address_option(dev, option_flags, res);
755 break;
756
757 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
758 pnpacpi_parse_ext_irq_option(dev, option_flags,
759 &res->data.extended_irq);
760 break;
761
762 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
763 break;
764
765 default:
766 dev_warn(&dev->dev, "unknown resource type %d in _PRS\n",
767 res->type);
768 return AE_ERROR;
769 }
770
771 return AE_OK;
772}
773
774int __init pnpacpi_parse_resource_option_data(struct pnp_dev *dev)
775{
776 acpi_handle handle = dev->data;
777 acpi_status status;
778 struct acpipnp_parse_option_s parse_data;
779
780 pnp_dbg(&dev->dev, "parse resource options\n");
781
782 parse_data.dev = dev;
783 parse_data.option_flags = 0;
784
785 status = acpi_walk_resources(handle, METHOD_NAME__PRS,
786 pnpacpi_option_resource, &parse_data);
787
788 if (ACPI_FAILURE(status)) {
789 if (status != AE_NOT_FOUND)
790 dev_err(&dev->dev, "can't evaluate _PRS: %d", status);
791 return -EPERM;
792 }
793 return 0;
794}
795
796static int pnpacpi_supported_resource(struct acpi_resource *res)
797{
798 switch (res->type) {
799 case ACPI_RESOURCE_TYPE_IRQ:
800 case ACPI_RESOURCE_TYPE_DMA:
801 case ACPI_RESOURCE_TYPE_IO:
802 case ACPI_RESOURCE_TYPE_FIXED_IO:
803 case ACPI_RESOURCE_TYPE_MEMORY24:
804 case ACPI_RESOURCE_TYPE_MEMORY32:
805 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
806 case ACPI_RESOURCE_TYPE_ADDRESS16:
807 case ACPI_RESOURCE_TYPE_ADDRESS32:
808 case ACPI_RESOURCE_TYPE_ADDRESS64:
809 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
810 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
811 return 1;
812 }
813 return 0;
814}
815
816
817
818
819static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
820 void *data)
821{
822 int *res_cnt = data;
823
824 if (pnpacpi_supported_resource(res))
825 (*res_cnt)++;
826 return AE_OK;
827}
828
829static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
830{
831 struct acpi_resource **resource = data;
832
833 if (pnpacpi_supported_resource(res)) {
834 (*resource)->type = res->type;
835 (*resource)->length = sizeof(struct acpi_resource);
836 if (res->type == ACPI_RESOURCE_TYPE_IRQ)
837 (*resource)->data.irq.descriptor_length =
838 res->data.irq.descriptor_length;
839 (*resource)++;
840 }
841
842 return AE_OK;
843}
844
845int pnpacpi_build_resource_template(struct pnp_dev *dev,
846 struct acpi_buffer *buffer)
847{
848 acpi_handle handle = dev->data;
849 struct acpi_resource *resource;
850 int res_cnt = 0;
851 acpi_status status;
852
853 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
854 pnpacpi_count_resources, &res_cnt);
855 if (ACPI_FAILURE(status)) {
856 dev_err(&dev->dev, "can't evaluate _CRS: %d\n", status);
857 return -EINVAL;
858 }
859 if (!res_cnt)
860 return -EINVAL;
861 buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
862 buffer->pointer = kzalloc(buffer->length - 1, GFP_KERNEL);
863 if (!buffer->pointer)
864 return -ENOMEM;
865
866 resource = (struct acpi_resource *)buffer->pointer;
867 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
868 pnpacpi_type_resources, &resource);
869 if (ACPI_FAILURE(status)) {
870 kfree(buffer->pointer);
871 dev_err(&dev->dev, "can't evaluate _CRS: %d\n", status);
872 return -EINVAL;
873 }
874
875 resource->type = ACPI_RESOURCE_TYPE_END_TAG;
876
877 return 0;
878}
879
880static void pnpacpi_encode_irq(struct pnp_dev *dev,
881 struct acpi_resource *resource,
882 struct resource *p)
883{
884 struct acpi_resource_irq *irq = &resource->data.irq;
885 int triggering, polarity, shareable;
886
887 if (!pnp_resource_enabled(p)) {
888 irq->interrupt_count = 0;
889 pnp_dbg(&dev->dev, " encode irq (%s)\n",
890 p ? "disabled" : "missing");
891 return;
892 }
893
894 decode_irq_flags(dev, p->flags, &triggering, &polarity, &shareable);
895 irq->triggering = triggering;
896 irq->polarity = polarity;
897 irq->sharable = shareable;
898 irq->interrupt_count = 1;
899 irq->interrupts[0] = p->start;
900
901 pnp_dbg(&dev->dev, " encode irq %d %s %s %s (%d-byte descriptor)\n",
902 (int) p->start,
903 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
904 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
905 irq->sharable == ACPI_SHARED ? "shared" : "exclusive",
906 irq->descriptor_length);
907}
908
909static void pnpacpi_encode_ext_irq(struct pnp_dev *dev,
910 struct acpi_resource *resource,
911 struct resource *p)
912{
913 struct acpi_resource_extended_irq *extended_irq = &resource->data.extended_irq;
914 int triggering, polarity, shareable;
915
916 if (!pnp_resource_enabled(p)) {
917 extended_irq->interrupt_count = 0;
918 pnp_dbg(&dev->dev, " encode extended irq (%s)\n",
919 p ? "disabled" : "missing");
920 return;
921 }
922
923 decode_irq_flags(dev, p->flags, &triggering, &polarity, &shareable);
924 extended_irq->producer_consumer = ACPI_CONSUMER;
925 extended_irq->triggering = triggering;
926 extended_irq->polarity = polarity;
927 extended_irq->sharable = shareable;
928 extended_irq->interrupt_count = 1;
929 extended_irq->interrupts[0] = p->start;
930
931 pnp_dbg(&dev->dev, " encode irq %d %s %s %s\n", (int) p->start,
932 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
933 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
934 extended_irq->sharable == ACPI_SHARED ? "shared" : "exclusive");
935}
936
937static void pnpacpi_encode_dma(struct pnp_dev *dev,
938 struct acpi_resource *resource,
939 struct resource *p)
940{
941 struct acpi_resource_dma *dma = &resource->data.dma;
942
943 if (!pnp_resource_enabled(p)) {
944 dma->channel_count = 0;
945 pnp_dbg(&dev->dev, " encode dma (%s)\n",
946 p ? "disabled" : "missing");
947 return;
948 }
949
950
951 switch (p->flags & IORESOURCE_DMA_SPEED_MASK) {
952 case IORESOURCE_DMA_TYPEA:
953 dma->type = ACPI_TYPE_A;
954 break;
955 case IORESOURCE_DMA_TYPEB:
956 dma->type = ACPI_TYPE_B;
957 break;
958 case IORESOURCE_DMA_TYPEF:
959 dma->type = ACPI_TYPE_F;
960 break;
961 default:
962 dma->type = ACPI_COMPATIBILITY;
963 }
964
965 switch (p->flags & IORESOURCE_DMA_TYPE_MASK) {
966 case IORESOURCE_DMA_8BIT:
967 dma->transfer = ACPI_TRANSFER_8;
968 break;
969 case IORESOURCE_DMA_8AND16BIT:
970 dma->transfer = ACPI_TRANSFER_8_16;
971 break;
972 default:
973 dma->transfer = ACPI_TRANSFER_16;
974 }
975
976 dma->bus_master = !!(p->flags & IORESOURCE_DMA_MASTER);
977 dma->channel_count = 1;
978 dma->channels[0] = p->start;
979
980 pnp_dbg(&dev->dev, " encode dma %d "
981 "type %#x transfer %#x master %d\n",
982 (int) p->start, dma->type, dma->transfer, dma->bus_master);
983}
984
985static void pnpacpi_encode_io(struct pnp_dev *dev,
986 struct acpi_resource *resource,
987 struct resource *p)
988{
989 struct acpi_resource_io *io = &resource->data.io;
990
991 if (pnp_resource_enabled(p)) {
992
993 io->io_decode = (p->flags & IORESOURCE_IO_16BIT_ADDR) ?
994 ACPI_DECODE_16 : ACPI_DECODE_10;
995 io->minimum = p->start;
996 io->maximum = p->end;
997 io->alignment = 0;
998 io->address_length = p->end - p->start + 1;
999 } else {
1000 io->minimum = 0;
1001 io->address_length = 0;
1002 }
1003
1004 pnp_dbg(&dev->dev, " encode io %#x-%#x decode %#x\n", io->minimum,
1005 io->minimum + io->address_length - 1, io->io_decode);
1006}
1007
1008static void pnpacpi_encode_fixed_io(struct pnp_dev *dev,
1009 struct acpi_resource *resource,
1010 struct resource *p)
1011{
1012 struct acpi_resource_fixed_io *fixed_io = &resource->data.fixed_io;
1013
1014 if (pnp_resource_enabled(p)) {
1015 fixed_io->address = p->start;
1016 fixed_io->address_length = p->end - p->start + 1;
1017 } else {
1018 fixed_io->address = 0;
1019 fixed_io->address_length = 0;
1020 }
1021
1022 pnp_dbg(&dev->dev, " encode fixed_io %#x-%#x\n", fixed_io->address,
1023 fixed_io->address + fixed_io->address_length - 1);
1024}
1025
1026static void pnpacpi_encode_mem24(struct pnp_dev *dev,
1027 struct acpi_resource *resource,
1028 struct resource *p)
1029{
1030 struct acpi_resource_memory24 *memory24 = &resource->data.memory24;
1031
1032 if (pnp_resource_enabled(p)) {
1033
1034 memory24->write_protect = p->flags & IORESOURCE_MEM_WRITEABLE ?
1035 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1036 memory24->minimum = p->start;
1037 memory24->maximum = p->end;
1038 memory24->alignment = 0;
1039 memory24->address_length = p->end - p->start + 1;
1040 } else {
1041 memory24->minimum = 0;
1042 memory24->address_length = 0;
1043 }
1044
1045 pnp_dbg(&dev->dev, " encode mem24 %#x-%#x write_protect %#x\n",
1046 memory24->minimum,
1047 memory24->minimum + memory24->address_length - 1,
1048 memory24->write_protect);
1049}
1050
1051static void pnpacpi_encode_mem32(struct pnp_dev *dev,
1052 struct acpi_resource *resource,
1053 struct resource *p)
1054{
1055 struct acpi_resource_memory32 *memory32 = &resource->data.memory32;
1056
1057 if (pnp_resource_enabled(p)) {
1058 memory32->write_protect = p->flags & IORESOURCE_MEM_WRITEABLE ?
1059 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1060 memory32->minimum = p->start;
1061 memory32->maximum = p->end;
1062 memory32->alignment = 0;
1063 memory32->address_length = p->end - p->start + 1;
1064 } else {
1065 memory32->minimum = 0;
1066 memory32->alignment = 0;
1067 }
1068
1069 pnp_dbg(&dev->dev, " encode mem32 %#x-%#x write_protect %#x\n",
1070 memory32->minimum,
1071 memory32->minimum + memory32->address_length - 1,
1072 memory32->write_protect);
1073}
1074
1075static void pnpacpi_encode_fixed_mem32(struct pnp_dev *dev,
1076 struct acpi_resource *resource,
1077 struct resource *p)
1078{
1079 struct acpi_resource_fixed_memory32 *fixed_memory32 = &resource->data.fixed_memory32;
1080
1081 if (pnp_resource_enabled(p)) {
1082 fixed_memory32->write_protect =
1083 p->flags & IORESOURCE_MEM_WRITEABLE ?
1084 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1085 fixed_memory32->address = p->start;
1086 fixed_memory32->address_length = p->end - p->start + 1;
1087 } else {
1088 fixed_memory32->address = 0;
1089 fixed_memory32->address_length = 0;
1090 }
1091
1092 pnp_dbg(&dev->dev, " encode fixed_mem32 %#x-%#x write_protect %#x\n",
1093 fixed_memory32->address,
1094 fixed_memory32->address + fixed_memory32->address_length - 1,
1095 fixed_memory32->write_protect);
1096}
1097
1098int pnpacpi_encode_resources(struct pnp_dev *dev, struct acpi_buffer *buffer)
1099{
1100 int i = 0;
1101
1102 int res_cnt = (buffer->length - 1) / sizeof(struct acpi_resource) - 1;
1103 struct acpi_resource *resource = buffer->pointer;
1104 int port = 0, irq = 0, dma = 0, mem = 0;
1105
1106 pnp_dbg(&dev->dev, "encode %d resources\n", res_cnt);
1107 while (i < res_cnt) {
1108 switch (resource->type) {
1109 case ACPI_RESOURCE_TYPE_IRQ:
1110 pnpacpi_encode_irq(dev, resource,
1111 pnp_get_resource(dev, IORESOURCE_IRQ, irq));
1112 irq++;
1113 break;
1114
1115 case ACPI_RESOURCE_TYPE_DMA:
1116 pnpacpi_encode_dma(dev, resource,
1117 pnp_get_resource(dev, IORESOURCE_DMA, dma));
1118 dma++;
1119 break;
1120 case ACPI_RESOURCE_TYPE_IO:
1121 pnpacpi_encode_io(dev, resource,
1122 pnp_get_resource(dev, IORESOURCE_IO, port));
1123 port++;
1124 break;
1125 case ACPI_RESOURCE_TYPE_FIXED_IO:
1126 pnpacpi_encode_fixed_io(dev, resource,
1127 pnp_get_resource(dev, IORESOURCE_IO, port));
1128 port++;
1129 break;
1130 case ACPI_RESOURCE_TYPE_MEMORY24:
1131 pnpacpi_encode_mem24(dev, resource,
1132 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1133 mem++;
1134 break;
1135 case ACPI_RESOURCE_TYPE_MEMORY32:
1136 pnpacpi_encode_mem32(dev, resource,
1137 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1138 mem++;
1139 break;
1140 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
1141 pnpacpi_encode_fixed_mem32(dev, resource,
1142 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1143 mem++;
1144 break;
1145 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
1146 pnpacpi_encode_ext_irq(dev, resource,
1147 pnp_get_resource(dev, IORESOURCE_IRQ, irq));
1148 irq++;
1149 break;
1150 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
1151 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
1152 case ACPI_RESOURCE_TYPE_VENDOR:
1153 case ACPI_RESOURCE_TYPE_END_TAG:
1154 case ACPI_RESOURCE_TYPE_ADDRESS16:
1155 case ACPI_RESOURCE_TYPE_ADDRESS32:
1156 case ACPI_RESOURCE_TYPE_ADDRESS64:
1157 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
1158 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
1159 default:
1160 dev_warn(&dev->dev, "can't encode unknown resource "
1161 "type %d\n", resource->type);
1162 return -EINVAL;
1163 }
1164 resource++;
1165 i++;
1166 }
1167 return 0;
1168}
1169
