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