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PNP: make pnp_resource_table private to PNP core
[linux-2.6/linux-2.6-openrd.git] / drivers / pnp / pnpacpi / rsparser.c
blob2669518b4795a58d94155334c5df20f577e3e7d2
1 /*
2 * pnpacpi -- PnP ACPI driver
3 *
4 * Copyright (c) 2004 Matthieu Castet <castet.matthieu@free.fr>
5 * Copyright (c) 2004 Li Shaohua <shaohua.li@intel.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2, or (at your option) any
10 * later version.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21 #include <linux/kernel.h>
22 #include <linux/acpi.h>
23 #include <linux/pci.h>
24 #include <linux/pnp.h>
25 #include "../base.h"
26 #include "pnpacpi.h"
27
28 #ifdef CONFIG_IA64
29 #define valid_IRQ(i) (1)
30 #else
31 #define valid_IRQ(i) (((i) != 0) && ((i) != 2))
32 #endif
33
34 /*
35 * Allocated Resources
36 */
37 static int irq_flags(int triggering, int polarity, int shareable)
38 {
39 int flags;
40
41 if (triggering == ACPI_LEVEL_SENSITIVE) {
42 if (polarity == ACPI_ACTIVE_LOW)
43 flags = IORESOURCE_IRQ_LOWLEVEL;
44 else
45 flags = IORESOURCE_IRQ_HIGHLEVEL;
46 } else {
47 if (polarity == ACPI_ACTIVE_LOW)
48 flags = IORESOURCE_IRQ_LOWEDGE;
49 else
50 flags = IORESOURCE_IRQ_HIGHEDGE;
51 }
52
53 if (shareable)
54 flags |= IORESOURCE_IRQ_SHAREABLE;
55
56 return flags;
57 }
58
59 static void decode_irq_flags(int flag, int *triggering, int *polarity)
60 {
61 switch (flag) {
62 case IORESOURCE_IRQ_LOWLEVEL:
63 *triggering = ACPI_LEVEL_SENSITIVE;
64 *polarity = ACPI_ACTIVE_LOW;
65 break;
66 case IORESOURCE_IRQ_HIGHLEVEL:
67 *triggering = ACPI_LEVEL_SENSITIVE;
68 *polarity = ACPI_ACTIVE_HIGH;
69 break;
70 case IORESOURCE_IRQ_LOWEDGE:
71 *triggering = ACPI_EDGE_SENSITIVE;
72 *polarity = ACPI_ACTIVE_LOW;
73 break;
74 case IORESOURCE_IRQ_HIGHEDGE:
75 *triggering = ACPI_EDGE_SENSITIVE;
76 *polarity = ACPI_ACTIVE_HIGH;
77 break;
78 }
79 }
80
81 static void pnpacpi_parse_allocated_irqresource(struct pnp_dev *dev,
82 u32 gsi, int triggering,
83 int polarity, int shareable)
84 {
85 struct pnp_resource_table *res = dev->res;
86 int i = 0;
87 int irq;
88 int p, t;
89 static unsigned char warned;
90
91 if (!valid_IRQ(gsi))
92 return;
93
94 while (!(res->irq_resource[i].flags & IORESOURCE_UNSET) &&
95 i < PNP_MAX_IRQ)
96 i++;
97 if (i >= PNP_MAX_IRQ) {
98 if (!warned) {
99 printk(KERN_WARNING "pnpacpi: exceeded the max number"
100 " of IRQ resources: %d\n", PNP_MAX_IRQ);
101 warned = 1;
102 }
103 return;
104 }
105 /*
106 * in IO-APIC mode, use overrided attribute. Two reasons:
107 * 1. BIOS bug in DSDT
108 * 2. BIOS uses IO-APIC mode Interrupt Source Override
109 */
110 if (!acpi_get_override_irq(gsi, &t, &p)) {
111 t = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
112 p = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
113
114 if (triggering != t || polarity != p) {
115 dev_warn(&dev->dev, "IRQ %d override to %s, %s\n",
116 gsi, t ? "edge":"level", p ? "low":"high");
117 triggering = t;
118 polarity = p;
119 }
120 }
121
122 res->irq_resource[i].flags = IORESOURCE_IRQ; // Also clears _UNSET flag
123 res->irq_resource[i].flags |= irq_flags(triggering, polarity, shareable);
124 irq = acpi_register_gsi(gsi, triggering, polarity);
125 if (irq < 0) {
126 res->irq_resource[i].flags |= IORESOURCE_DISABLED;
127 return;
128 }
129
130 res->irq_resource[i].start = irq;
131 res->irq_resource[i].end = irq;
132 pcibios_penalize_isa_irq(irq, 1);
133 }
134
135 static int dma_flags(int type, int bus_master, int transfer)
136 {
137 int flags = 0;
138
139 if (bus_master)
140 flags |= IORESOURCE_DMA_MASTER;
141 switch (type) {
142 case ACPI_COMPATIBILITY:
143 flags |= IORESOURCE_DMA_COMPATIBLE;
144 break;
145 case ACPI_TYPE_A:
146 flags |= IORESOURCE_DMA_TYPEA;
147 break;
148 case ACPI_TYPE_B:
149 flags |= IORESOURCE_DMA_TYPEB;
150 break;
151 case ACPI_TYPE_F:
152 flags |= IORESOURCE_DMA_TYPEF;
153 break;
154 default:
155 /* Set a default value ? */
156 flags |= IORESOURCE_DMA_COMPATIBLE;
157 pnp_err("Invalid DMA type");
158 }
159 switch (transfer) {
160 case ACPI_TRANSFER_8:
161 flags |= IORESOURCE_DMA_8BIT;
162 break;
163 case ACPI_TRANSFER_8_16:
164 flags |= IORESOURCE_DMA_8AND16BIT;
165 break;
166 case ACPI_TRANSFER_16:
167 flags |= IORESOURCE_DMA_16BIT;
168 break;
169 default:
170 /* Set a default value ? */
171 flags |= IORESOURCE_DMA_8AND16BIT;
172 pnp_err("Invalid DMA transfer type");
173 }
174
175 return flags;
176 }
177
178 static void pnpacpi_parse_allocated_dmaresource(struct pnp_dev *dev,
179 u32 dma, int flags)
180 {
181 struct pnp_resource_table *res = dev->res;
182 int i = 0;
183 static unsigned char warned;
184
185 while (i < PNP_MAX_DMA &&
186 !(res->dma_resource[i].flags & IORESOURCE_UNSET))
187 i++;
188 if (i < PNP_MAX_DMA) {
189 res->dma_resource[i].flags = IORESOURCE_DMA; // Also clears _UNSET flag
190 res->dma_resource[i].flags |= flags;
191 if (dma == -1) {
192 res->dma_resource[i].flags |= IORESOURCE_DISABLED;
193 return;
194 }
195 res->dma_resource[i].start = dma;
196 res->dma_resource[i].end = dma;
197 } else if (!warned) {
198 printk(KERN_WARNING "pnpacpi: exceeded the max number of DMA "
199 "resources: %d \n", PNP_MAX_DMA);
200 warned = 1;
201 }
202 }
203
204 static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev,
205 u64 io, u64 len, int io_decode)
206 {
207 struct pnp_resource_table *res = dev->res;
208 int i = 0;
209 static unsigned char warned;
210
211 while (!(res->port_resource[i].flags & IORESOURCE_UNSET) &&
212 i < PNP_MAX_PORT)
213 i++;
214 if (i < PNP_MAX_PORT) {
215 res->port_resource[i].flags = IORESOURCE_IO; // Also clears _UNSET flag
216 if (io_decode == ACPI_DECODE_16)
217 res->port_resource[i].flags |= PNP_PORT_FLAG_16BITADDR;
218 if (len <= 0 || (io + len - 1) >= 0x10003) {
219 res->port_resource[i].flags |= IORESOURCE_DISABLED;
220 return;
221 }
222 res->port_resource[i].start = io;
223 res->port_resource[i].end = io + len - 1;
224 } else if (!warned) {
225 printk(KERN_WARNING "pnpacpi: exceeded the max number of IO "
226 "resources: %d \n", PNP_MAX_PORT);
227 warned = 1;
228 }
229 }
230
231 static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev,
232 u64 mem, u64 len,
233 int write_protect)
234 {
235 struct pnp_resource_table *res = dev->res;
236 int i = 0;
237 static unsigned char warned;
238
239 while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) &&
240 (i < PNP_MAX_MEM))
241 i++;
242 if (i < PNP_MAX_MEM) {
243 res->mem_resource[i].flags = IORESOURCE_MEM; // Also clears _UNSET flag
244 if (len <= 0) {
245 res->mem_resource[i].flags |= IORESOURCE_DISABLED;
246 return;
247 }
248 if (write_protect == ACPI_READ_WRITE_MEMORY)
249 res->mem_resource[i].flags |= IORESOURCE_MEM_WRITEABLE;
250
251 res->mem_resource[i].start = mem;
252 res->mem_resource[i].end = mem + len - 1;
253 } else if (!warned) {
254 printk(KERN_WARNING "pnpacpi: exceeded the max number of mem "
255 "resources: %d\n", PNP_MAX_MEM);
256 warned = 1;
257 }
258 }
259
260 static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,
261 struct acpi_resource *res)
262 {
263 struct acpi_resource_address64 addr, *p = &addr;
264 acpi_status status;
265
266 status = acpi_resource_to_address64(res, p);
267 if (!ACPI_SUCCESS(status)) {
268 dev_warn(&dev->dev, "failed to convert resource type %d\n",
269 res->type);
270 return;
271 }
272
273 if (p->producer_consumer == ACPI_PRODUCER)
274 return;
275
276 if (p->resource_type == ACPI_MEMORY_RANGE)
277 pnpacpi_parse_allocated_memresource(dev,
278 p->minimum, p->address_length,
279 p->info.mem.write_protect);
280 else if (p->resource_type == ACPI_IO_RANGE)
281 pnpacpi_parse_allocated_ioresource(dev,
282 p->minimum, p->address_length,
283 p->granularity == 0xfff ? ACPI_DECODE_10 :
284 ACPI_DECODE_16);
285 }
286
287 static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
288 void *data)
289 {
290 struct pnp_dev *dev = data;
291 struct acpi_resource_irq *irq;
292 struct acpi_resource_dma *dma;
293 struct acpi_resource_io *io;
294 struct acpi_resource_fixed_io *fixed_io;
295 struct acpi_resource_memory24 *memory24;
296 struct acpi_resource_memory32 *memory32;
297 struct acpi_resource_fixed_memory32 *fixed_memory32;
298 struct acpi_resource_extended_irq *extended_irq;
299 int i;
300
301 switch (res->type) {
302 case ACPI_RESOURCE_TYPE_IRQ:
303 /*
304 * Per spec, only one interrupt per descriptor is allowed in
305 * _CRS, but some firmware violates this, so parse them all.
306 */
307 irq = &res->data.irq;
308 for (i = 0; i < irq->interrupt_count; i++) {
309 pnpacpi_parse_allocated_irqresource(dev,
310 irq->interrupts[i],
311 irq->triggering,
312 irq->polarity,
313 irq->sharable);
314 }
315 break;
316
317 case ACPI_RESOURCE_TYPE_DMA:
318 dma = &res->data.dma;
319 if (dma->channel_count > 0)
320 pnpacpi_parse_allocated_dmaresource(dev,
321 dma->channels[0],
322 dma_flags(dma->type, dma->bus_master,
323 dma->transfer));
324 break;
325
326 case ACPI_RESOURCE_TYPE_IO:
327 io = &res->data.io;
328 pnpacpi_parse_allocated_ioresource(dev,
329 io->minimum,
330 io->address_length,
331 io->io_decode);
332 break;
333
334 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
335 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
336 break;
337
338 case ACPI_RESOURCE_TYPE_FIXED_IO:
339 fixed_io = &res->data.fixed_io;
340 pnpacpi_parse_allocated_ioresource(dev,
341 fixed_io->address,
342 fixed_io->address_length,
343 ACPI_DECODE_10);
344 break;
345
346 case ACPI_RESOURCE_TYPE_VENDOR:
347 break;
348
349 case ACPI_RESOURCE_TYPE_END_TAG:
350 break;
351
352 case ACPI_RESOURCE_TYPE_MEMORY24:
353 memory24 = &res->data.memory24;
354 pnpacpi_parse_allocated_memresource(dev,
355 memory24->minimum,
356 memory24->address_length,
357 memory24->write_protect);
358 break;
359 case ACPI_RESOURCE_TYPE_MEMORY32:
360 memory32 = &res->data.memory32;
361 pnpacpi_parse_allocated_memresource(dev,
362 memory32->minimum,
363 memory32->address_length,
364 memory32->write_protect);
365 break;
366 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
367 fixed_memory32 = &res->data.fixed_memory32;
368 pnpacpi_parse_allocated_memresource(dev,
369 fixed_memory32->address,
370 fixed_memory32->address_length,
371 fixed_memory32->write_protect);
372 break;
373 case ACPI_RESOURCE_TYPE_ADDRESS16:
374 case ACPI_RESOURCE_TYPE_ADDRESS32:
375 case ACPI_RESOURCE_TYPE_ADDRESS64:
376 pnpacpi_parse_allocated_address_space(dev, res);
377 break;
378
379 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
380 if (res->data.ext_address64.producer_consumer == ACPI_PRODUCER)
381 return AE_OK;
382 break;
383
384 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
385 extended_irq = &res->data.extended_irq;
386 if (extended_irq->producer_consumer == ACPI_PRODUCER)
387 return AE_OK;
388
389 for (i = 0; i < extended_irq->interrupt_count; i++) {
390 pnpacpi_parse_allocated_irqresource(dev,
391 extended_irq->interrupts[i],
392 extended_irq->triggering,
393 extended_irq->polarity,
394 extended_irq->sharable);
395 }
396 break;
397
398 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
399 break;
400
401 default:
402 dev_warn(&dev->dev, "unknown resource type %d in _CRS\n",
403 res->type);
404 return AE_ERROR;
405 }
406
407 return AE_OK;
408 }
409
410 acpi_status pnpacpi_parse_allocated_resource(struct pnp_dev *dev)
411 {
412 acpi_handle handle = dev->data;
413
414 dev_dbg(&dev->dev, "parse allocated resources\n");
415
416 pnp_init_resources(dev);
417
418 return acpi_walk_resources(handle, METHOD_NAME__CRS,
419 pnpacpi_allocated_resource, dev);
420 }
421
422 static __init void pnpacpi_parse_dma_option(struct pnp_dev *dev,
423 struct pnp_option *option,
424 struct acpi_resource_dma *p)
425 {
426 int i;
427 struct pnp_dma *dma;
428
429 if (p->channel_count == 0)
430 return;
431 dma = kzalloc(sizeof(struct pnp_dma), GFP_KERNEL);
432 if (!dma)
433 return;
434
435 for (i = 0; i < p->channel_count; i++)
436 dma->map |= 1 << p->channels[i];
437
438 dma->flags = dma_flags(p->type, p->bus_master, p->transfer);
439
440 pnp_register_dma_resource(dev, option, dma);
441 }
442
443 static __init void pnpacpi_parse_irq_option(struct pnp_dev *dev,
444 struct pnp_option *option,
445 struct acpi_resource_irq *p)
446 {
447 int i;
448 struct pnp_irq *irq;
449
450 if (p->interrupt_count == 0)
451 return;
452 irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
453 if (!irq)
454 return;
455
456 for (i = 0; i < p->interrupt_count; i++)
457 if (p->interrupts[i])
458 __set_bit(p->interrupts[i], irq->map);
459 irq->flags = irq_flags(p->triggering, p->polarity, p->sharable);
460
461 pnp_register_irq_resource(dev, option, irq);
462 }
463
464 static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev,
465 struct pnp_option *option,
466 struct acpi_resource_extended_irq *p)
467 {
468 int i;
469 struct pnp_irq *irq;
470
471 if (p->interrupt_count == 0)
472 return;
473 irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
474 if (!irq)
475 return;
476
477 for (i = 0; i < p->interrupt_count; i++)
478 if (p->interrupts[i])
479 __set_bit(p->interrupts[i], irq->map);
480 irq->flags = irq_flags(p->triggering, p->polarity, p->sharable);
481
482 pnp_register_irq_resource(dev, option, irq);
483 }
484
485 static __init void pnpacpi_parse_port_option(struct pnp_dev *dev,
486 struct pnp_option *option,
487 struct acpi_resource_io *io)
488 {
489 struct pnp_port *port;
490
491 if (io->address_length == 0)
492 return;
493 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
494 if (!port)
495 return;
496 port->min = io->minimum;
497 port->max = io->maximum;
498 port->align = io->alignment;
499 port->size = io->address_length;
500 port->flags = ACPI_DECODE_16 == io->io_decode ?
501 PNP_PORT_FLAG_16BITADDR : 0;
502 pnp_register_port_resource(dev, option, port);
503 }
504
505 static __init void pnpacpi_parse_fixed_port_option(struct pnp_dev *dev,
506 struct pnp_option *option,
507 struct acpi_resource_fixed_io *io)
508 {
509 struct pnp_port *port;
510
511 if (io->address_length == 0)
512 return;
513 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
514 if (!port)
515 return;
516 port->min = port->max = io->address;
517 port->size = io->address_length;
518 port->align = 0;
519 port->flags = PNP_PORT_FLAG_FIXED;
520 pnp_register_port_resource(dev, option, port);
521 }
522
523 static __init void pnpacpi_parse_mem24_option(struct pnp_dev *dev,
524 struct pnp_option *option,
525 struct acpi_resource_memory24 *p)
526 {
527 struct pnp_mem *mem;
528
529 if (p->address_length == 0)
530 return;
531 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
532 if (!mem)
533 return;
534 mem->min = p->minimum;
535 mem->max = p->maximum;
536 mem->align = p->alignment;
537 mem->size = p->address_length;
538
539 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
540 IORESOURCE_MEM_WRITEABLE : 0;
541
542 pnp_register_mem_resource(dev, option, mem);
543 }
544
545 static __init void pnpacpi_parse_mem32_option(struct pnp_dev *dev,
546 struct pnp_option *option,
547 struct acpi_resource_memory32 *p)
548 {
549 struct pnp_mem *mem;
550
551 if (p->address_length == 0)
552 return;
553 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
554 if (!mem)
555 return;
556 mem->min = p->minimum;
557 mem->max = p->maximum;
558 mem->align = p->alignment;
559 mem->size = p->address_length;
560
561 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
562 IORESOURCE_MEM_WRITEABLE : 0;
563
564 pnp_register_mem_resource(dev, option, mem);
565 }
566
567 static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_dev *dev,
568 struct pnp_option *option,
569 struct acpi_resource_fixed_memory32 *p)
570 {
571 struct pnp_mem *mem;
572
573 if (p->address_length == 0)
574 return;
575 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
576 if (!mem)
577 return;
578 mem->min = mem->max = p->address;
579 mem->size = p->address_length;
580 mem->align = 0;
581
582 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
583 IORESOURCE_MEM_WRITEABLE : 0;
584
585 pnp_register_mem_resource(dev, option, mem);
586 }
587
588 static __init void pnpacpi_parse_address_option(struct pnp_dev *dev,
589 struct pnp_option *option,
590 struct acpi_resource *r)
591 {
592 struct acpi_resource_address64 addr, *p = &addr;
593 acpi_status status;
594 struct pnp_mem *mem;
595 struct pnp_port *port;
596
597 status = acpi_resource_to_address64(r, p);
598 if (!ACPI_SUCCESS(status)) {
599 pnp_warn("PnPACPI: failed to convert resource type %d",
600 r->type);
601 return;
602 }
603
604 if (p->address_length == 0)
605 return;
606
607 if (p->resource_type == ACPI_MEMORY_RANGE) {
608 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
609 if (!mem)
610 return;
611 mem->min = mem->max = p->minimum;
612 mem->size = p->address_length;
613 mem->align = 0;
614 mem->flags = (p->info.mem.write_protect ==
615 ACPI_READ_WRITE_MEMORY) ? IORESOURCE_MEM_WRITEABLE
616 : 0;
617 pnp_register_mem_resource(dev, option, mem);
618 } else if (p->resource_type == ACPI_IO_RANGE) {
619 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
620 if (!port)
621 return;
622 port->min = port->max = p->minimum;
623 port->size = p->address_length;
624 port->align = 0;
625 port->flags = PNP_PORT_FLAG_FIXED;
626 pnp_register_port_resource(dev, option, port);
627 }
628 }
629
630 struct acpipnp_parse_option_s {
631 struct pnp_option *option;
632 struct pnp_option *option_independent;
633 struct pnp_dev *dev;
634 };
635
636 static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
637 void *data)
638 {
639 int priority = 0;
640 struct acpipnp_parse_option_s *parse_data = data;
641 struct pnp_dev *dev = parse_data->dev;
642 struct pnp_option *option = parse_data->option;
643
644 switch (res->type) {
645 case ACPI_RESOURCE_TYPE_IRQ:
646 pnpacpi_parse_irq_option(dev, option, &res->data.irq);
647 break;
648
649 case ACPI_RESOURCE_TYPE_DMA:
650 pnpacpi_parse_dma_option(dev, option, &res->data.dma);
651 break;
652
653 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
654 switch (res->data.start_dpf.compatibility_priority) {
655 case ACPI_GOOD_CONFIGURATION:
656 priority = PNP_RES_PRIORITY_PREFERRED;
657 break;
658
659 case ACPI_ACCEPTABLE_CONFIGURATION:
660 priority = PNP_RES_PRIORITY_ACCEPTABLE;
661 break;
662
663 case ACPI_SUB_OPTIMAL_CONFIGURATION:
664 priority = PNP_RES_PRIORITY_FUNCTIONAL;
665 break;
666 default:
667 priority = PNP_RES_PRIORITY_INVALID;
668 break;
669 }
670 /* TBD: Consider performance/robustness bits */
671 option = pnp_register_dependent_option(dev, priority);
672 if (!option)
673 return AE_ERROR;
674 parse_data->option = option;
675 break;
676
677 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
678 /*only one EndDependentFn is allowed */
679 if (!parse_data->option_independent) {
680 dev_warn(&dev->dev, "more than one EndDependentFn "
681 "in _PRS\n");
682 return AE_ERROR;
683 }
684 parse_data->option = parse_data->option_independent;
685 parse_data->option_independent = NULL;
686 dev_dbg(&dev->dev, "end dependent options\n");
687 break;
688
689 case ACPI_RESOURCE_TYPE_IO:
690 pnpacpi_parse_port_option(dev, option, &res->data.io);
691 break;
692
693 case ACPI_RESOURCE_TYPE_FIXED_IO:
694 pnpacpi_parse_fixed_port_option(dev, option,
695 &res->data.fixed_io);
696 break;
697
698 case ACPI_RESOURCE_TYPE_VENDOR:
699 case ACPI_RESOURCE_TYPE_END_TAG:
700 break;
701
702 case ACPI_RESOURCE_TYPE_MEMORY24:
703 pnpacpi_parse_mem24_option(dev, option, &res->data.memory24);
704 break;
705
706 case ACPI_RESOURCE_TYPE_MEMORY32:
707 pnpacpi_parse_mem32_option(dev, option, &res->data.memory32);
708 break;
709
710 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
711 pnpacpi_parse_fixed_mem32_option(dev, option,
712 &res->data.fixed_memory32);
713 break;
714
715 case ACPI_RESOURCE_TYPE_ADDRESS16:
716 case ACPI_RESOURCE_TYPE_ADDRESS32:
717 case ACPI_RESOURCE_TYPE_ADDRESS64:
718 pnpacpi_parse_address_option(dev, option, res);
719 break;
720
721 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
722 break;
723
724 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
725 pnpacpi_parse_ext_irq_option(dev, option,
726 &res->data.extended_irq);
727 break;
728
729 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
730 break;
731
732 default:
733 dev_warn(&dev->dev, "unknown resource type %d in _PRS\n",
734 res->type);
735 return AE_ERROR;
736 }
737
738 return AE_OK;
739 }
740
741 acpi_status __init pnpacpi_parse_resource_option_data(struct pnp_dev *dev)
742 {
743 acpi_handle handle = dev->data;
744 acpi_status status;
745 struct acpipnp_parse_option_s parse_data;
746
747 dev_dbg(&dev->dev, "parse resource options\n");
748
749 parse_data.option = pnp_register_independent_option(dev);
750 if (!parse_data.option)
751 return AE_ERROR;
752 parse_data.option_independent = parse_data.option;
753 parse_data.dev = dev;
754 status = acpi_walk_resources(handle, METHOD_NAME__PRS,
755 pnpacpi_option_resource, &parse_data);
756
757 return status;
758 }
759
760 static int pnpacpi_supported_resource(struct acpi_resource *res)
761 {
762 switch (res->type) {
763 case ACPI_RESOURCE_TYPE_IRQ:
764 case ACPI_RESOURCE_TYPE_DMA:
765 case ACPI_RESOURCE_TYPE_IO:
766 case ACPI_RESOURCE_TYPE_FIXED_IO:
767 case ACPI_RESOURCE_TYPE_MEMORY24:
768 case ACPI_RESOURCE_TYPE_MEMORY32:
769 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
770 case ACPI_RESOURCE_TYPE_ADDRESS16:
771 case ACPI_RESOURCE_TYPE_ADDRESS32:
772 case ACPI_RESOURCE_TYPE_ADDRESS64:
773 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
774 return 1;
775 }
776 return 0;
777 }
778
779 /*
780 * Set resource
781 */
782 static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
783 void *data)
784 {
785 int *res_cnt = data;
786
787 if (pnpacpi_supported_resource(res))
788 (*res_cnt)++;
789 return AE_OK;
790 }
791
792 static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
793 {
794 struct acpi_resource **resource = data;
795
796 if (pnpacpi_supported_resource(res)) {
797 (*resource)->type = res->type;
798 (*resource)->length = sizeof(struct acpi_resource);
799 (*resource)++;
800 }
801
802 return AE_OK;
803 }
804
805 int pnpacpi_build_resource_template(struct pnp_dev *dev,
806 struct acpi_buffer *buffer)
807 {
808 acpi_handle handle = dev->data;
809 struct acpi_resource *resource;
810 int res_cnt = 0;
811 acpi_status status;
812
813 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
814 pnpacpi_count_resources, &res_cnt);
815 if (ACPI_FAILURE(status)) {
816 dev_err(&dev->dev, "can't evaluate _CRS\n");
817 return -EINVAL;
818 }
819 if (!res_cnt)
820 return -EINVAL;
821 buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
822 buffer->pointer = kzalloc(buffer->length - 1, GFP_KERNEL);
823 if (!buffer->pointer)
824 return -ENOMEM;
825
826 resource = (struct acpi_resource *)buffer->pointer;
827 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
828 pnpacpi_type_resources, &resource);
829 if (ACPI_FAILURE(status)) {
830 kfree(buffer->pointer);
831 dev_err(&dev->dev, "can't evaluate _CRS\n");
832 return -EINVAL;
833 }
834 /* resource will pointer the end resource now */
835 resource->type = ACPI_RESOURCE_TYPE_END_TAG;
836
837 return 0;
838 }
839
840 static void pnpacpi_encode_irq(struct pnp_dev *dev,
841 struct acpi_resource *resource,
842 struct resource *p)
843 {
844 struct acpi_resource_irq *irq = &resource->data.irq;
845 int triggering, polarity;
846
847 decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
848 irq->triggering = triggering;
849 irq->polarity = polarity;
850 if (triggering == ACPI_EDGE_SENSITIVE)
851 irq->sharable = ACPI_EXCLUSIVE;
852 else
853 irq->sharable = ACPI_SHARED;
854 irq->interrupt_count = 1;
855 irq->interrupts[0] = p->start;
856
857 dev_dbg(&dev->dev, " encode irq %d %s %s %s\n", (int) p->start,
858 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
859 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
860 irq->sharable == ACPI_SHARED ? "shared" : "exclusive");
861 }
862
863 static void pnpacpi_encode_ext_irq(struct pnp_dev *dev,
864 struct acpi_resource *resource,
865 struct resource *p)
866 {
867 struct acpi_resource_extended_irq *extended_irq = &resource->data.extended_irq;
868 int triggering, polarity;
869
870 decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
871 extended_irq->producer_consumer = ACPI_CONSUMER;
872 extended_irq->triggering = triggering;
873 extended_irq->polarity = polarity;
874 if (triggering == ACPI_EDGE_SENSITIVE)
875 extended_irq->sharable = ACPI_EXCLUSIVE;
876 else
877 extended_irq->sharable = ACPI_SHARED;
878 extended_irq->interrupt_count = 1;
879 extended_irq->interrupts[0] = p->start;
880
881 dev_dbg(&dev->dev, " encode irq %d %s %s %s\n", (int) p->start,
882 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
883 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
884 extended_irq->sharable == ACPI_SHARED ? "shared" : "exclusive");
885 }
886
887 static void pnpacpi_encode_dma(struct pnp_dev *dev,
888 struct acpi_resource *resource,
889 struct resource *p)
890 {
891 struct acpi_resource_dma *dma = &resource->data.dma;
892
893 /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
894 switch (p->flags & IORESOURCE_DMA_SPEED_MASK) {
895 case IORESOURCE_DMA_TYPEA:
896 dma->type = ACPI_TYPE_A;
897 break;
898 case IORESOURCE_DMA_TYPEB:
899 dma->type = ACPI_TYPE_B;
900 break;
901 case IORESOURCE_DMA_TYPEF:
902 dma->type = ACPI_TYPE_F;
903 break;
904 default:
905 dma->type = ACPI_COMPATIBILITY;
906 }
907
908 switch (p->flags & IORESOURCE_DMA_TYPE_MASK) {
909 case IORESOURCE_DMA_8BIT:
910 dma->transfer = ACPI_TRANSFER_8;
911 break;
912 case IORESOURCE_DMA_8AND16BIT:
913 dma->transfer = ACPI_TRANSFER_8_16;
914 break;
915 default:
916 dma->transfer = ACPI_TRANSFER_16;
917 }
918
919 dma->bus_master = !!(p->flags & IORESOURCE_DMA_MASTER);
920 dma->channel_count = 1;
921 dma->channels[0] = p->start;
922
923 dev_dbg(&dev->dev, " encode dma %d "
924 "type %#x transfer %#x master %d\n",
925 (int) p->start, dma->type, dma->transfer, dma->bus_master);
926 }
927
928 static void pnpacpi_encode_io(struct pnp_dev *dev,
929 struct acpi_resource *resource,
930 struct resource *p)
931 {
932 struct acpi_resource_io *io = &resource->data.io;
933
934 /* Note: pnp_assign_port will copy pnp_port->flags into p->flags */
935 io->io_decode = (p->flags & PNP_PORT_FLAG_16BITADDR) ?
936 ACPI_DECODE_16 : ACPI_DECODE_10;
937 io->minimum = p->start;
938 io->maximum = p->end;
939 io->alignment = 0; /* Correct? */
940 io->address_length = p->end - p->start + 1;
941
942 dev_dbg(&dev->dev, " encode io %#llx-%#llx decode %#x\n",
943 (unsigned long long) p->start, (unsigned long long) p->end,
944 io->io_decode);
945 }
946
947 static void pnpacpi_encode_fixed_io(struct pnp_dev *dev,
948 struct acpi_resource *resource,
949 struct resource *p)
950 {
951 struct acpi_resource_fixed_io *fixed_io = &resource->data.fixed_io;
952
953 fixed_io->address = p->start;
954 fixed_io->address_length = p->end - p->start + 1;
955
956 dev_dbg(&dev->dev, " encode fixed_io %#llx-%#llx\n",
957 (unsigned long long) p->start, (unsigned long long) p->end);
958 }
959
960 static void pnpacpi_encode_mem24(struct pnp_dev *dev,
961 struct acpi_resource *resource,
962 struct resource *p)
963 {
964 struct acpi_resource_memory24 *memory24 = &resource->data.memory24;
965
966 /* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */
967 memory24->write_protect =
968 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
969 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
970 memory24->minimum = p->start;
971 memory24->maximum = p->end;
972 memory24->alignment = 0;
973 memory24->address_length = p->end - p->start + 1;
974
975 dev_dbg(&dev->dev, " encode mem24 %#llx-%#llx write_protect %#x\n",
976 (unsigned long long) p->start, (unsigned long long) p->end,
977 memory24->write_protect);
978 }
979
980 static void pnpacpi_encode_mem32(struct pnp_dev *dev,
981 struct acpi_resource *resource,
982 struct resource *p)
983 {
984 struct acpi_resource_memory32 *memory32 = &resource->data.memory32;
985
986 memory32->write_protect =
987 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
988 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
989 memory32->minimum = p->start;
990 memory32->maximum = p->end;
991 memory32->alignment = 0;
992 memory32->address_length = p->end - p->start + 1;
993
994 dev_dbg(&dev->dev, " encode mem32 %#llx-%#llx write_protect %#x\n",
995 (unsigned long long) p->start, (unsigned long long) p->end,
996 memory32->write_protect);
997 }
998
999 static void pnpacpi_encode_fixed_mem32(struct pnp_dev *dev,
1000 struct acpi_resource *resource,
1001 struct resource *p)
1002 {
1003 struct acpi_resource_fixed_memory32 *fixed_memory32 = &resource->data.fixed_memory32;
1004
1005 fixed_memory32->write_protect =
1006 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
1007 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1008 fixed_memory32->address = p->start;
1009 fixed_memory32->address_length = p->end - p->start + 1;
1010
1011 dev_dbg(&dev->dev, " encode fixed_mem32 %#llx-%#llx "
1012 "write_protect %#x\n",
1013 (unsigned long long) p->start, (unsigned long long) p->end,
1014 fixed_memory32->write_protect);
1015 }
1016
1017 int pnpacpi_encode_resources(struct pnp_dev *dev, struct acpi_buffer *buffer)
1018 {
1019 int i = 0;
1020 /* pnpacpi_build_resource_template allocates extra mem */
1021 int res_cnt = (buffer->length - 1) / sizeof(struct acpi_resource) - 1;
1022 struct acpi_resource *resource = buffer->pointer;
1023 int port = 0, irq = 0, dma = 0, mem = 0;
1024
1025 dev_dbg(&dev->dev, "encode %d resources\n", res_cnt);
1026 while (i < res_cnt) {
1027 switch (resource->type) {
1028 case ACPI_RESOURCE_TYPE_IRQ:
1029 pnpacpi_encode_irq(dev, resource,
1030 pnp_get_resource(dev, IORESOURCE_IRQ, irq));
1031 irq++;
1032 break;
1033
1034 case ACPI_RESOURCE_TYPE_DMA:
1035 pnpacpi_encode_dma(dev, resource,
1036 pnp_get_resource(dev, IORESOURCE_DMA, dma));
1037 dma++;
1038 break;
1039 case ACPI_RESOURCE_TYPE_IO:
1040 pnpacpi_encode_io(dev, resource,
1041 pnp_get_resource(dev, IORESOURCE_IO, port));
1042 port++;
1043 break;
1044 case ACPI_RESOURCE_TYPE_FIXED_IO:
1045 pnpacpi_encode_fixed_io(dev, resource,
1046 pnp_get_resource(dev, IORESOURCE_IO, port));
1047 port++;
1048 break;
1049 case ACPI_RESOURCE_TYPE_MEMORY24:
1050 pnpacpi_encode_mem24(dev, resource,
1051 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1052 mem++;
1053 break;
1054 case ACPI_RESOURCE_TYPE_MEMORY32:
1055 pnpacpi_encode_mem32(dev, resource,
1056 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1057 mem++;
1058 break;
1059 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
1060 pnpacpi_encode_fixed_mem32(dev, resource,
1061 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1062 mem++;
1063 break;
1064 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
1065 pnpacpi_encode_ext_irq(dev, resource,
1066 pnp_get_resource(dev, IORESOURCE_IRQ, irq));
1067 irq++;
1068 break;
1069 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
1070 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
1071 case ACPI_RESOURCE_TYPE_VENDOR:
1072 case ACPI_RESOURCE_TYPE_END_TAG:
1073 case ACPI_RESOURCE_TYPE_ADDRESS16:
1074 case ACPI_RESOURCE_TYPE_ADDRESS32:
1075 case ACPI_RESOURCE_TYPE_ADDRESS64:
1076 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
1077 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
1078 default: /* other type */
1079 dev_warn(&dev->dev, "can't encode unknown resource "
1080 "type %d\n", resource->type);
1081 return -EINVAL;
1082 }
1083 resource++;
1084 i++;
1085 }
1086 return 0;
1087 }
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