Pull motherboard into release branch
[sfrench/cifs-2.6.git] / drivers / pnp / pnpacpi / rsparser.c
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 "pnpacpi.h"
25
26 #ifdef CONFIG_IA64
27 #define valid_IRQ(i) (1)
28 #else
29 #define valid_IRQ(i) (((i) != 0) && ((i) != 2))
30 #endif
31
32 /*
33  * Allocated Resources
34  */
35 static int irq_flags(int triggering, int polarity)
36 {
37         int flag;
38         if (triggering == ACPI_LEVEL_SENSITIVE) {
39                 if(polarity == ACPI_ACTIVE_LOW)
40                         flag = IORESOURCE_IRQ_LOWLEVEL;
41                 else
42                         flag = IORESOURCE_IRQ_HIGHLEVEL;
43         }
44         else {
45                 if(polarity == ACPI_ACTIVE_LOW)
46                         flag = IORESOURCE_IRQ_LOWEDGE;
47                 else
48                         flag = IORESOURCE_IRQ_HIGHEDGE;
49         }
50         return flag;
51 }
52
53 static void decode_irq_flags(int flag, int *triggering, int *polarity)
54 {
55         switch (flag) {
56         case IORESOURCE_IRQ_LOWLEVEL:
57                 *triggering = ACPI_LEVEL_SENSITIVE;
58                 *polarity = ACPI_ACTIVE_LOW;
59                 break;
60         case IORESOURCE_IRQ_HIGHLEVEL:  
61                 *triggering = ACPI_LEVEL_SENSITIVE;
62                 *polarity = ACPI_ACTIVE_HIGH;
63                 break;
64         case IORESOURCE_IRQ_LOWEDGE:
65                 *triggering = ACPI_EDGE_SENSITIVE;
66                 *polarity = ACPI_ACTIVE_LOW;
67                 break;
68         case IORESOURCE_IRQ_HIGHEDGE:
69                 *triggering = ACPI_EDGE_SENSITIVE;
70                 *polarity = ACPI_ACTIVE_HIGH;
71                 break;
72         }
73 }
74
75 static void
76 pnpacpi_parse_allocated_irqresource(struct pnp_resource_table * res, u32 gsi,
77         int triggering, int polarity)
78 {
79         int i = 0;
80         int irq;
81
82         if (!valid_IRQ(gsi))
83                 return;
84
85         while (!(res->irq_resource[i].flags & IORESOURCE_UNSET) &&
86                         i < PNP_MAX_IRQ)
87                 i++;
88         if (i >= PNP_MAX_IRQ)
89                 return;
90
91         res->irq_resource[i].flags = IORESOURCE_IRQ;  // Also clears _UNSET flag
92         irq = acpi_register_gsi(gsi, triggering, polarity);
93         if (irq < 0) {
94                 res->irq_resource[i].flags |= IORESOURCE_DISABLED;
95                 return;
96         }
97
98         res->irq_resource[i].start = irq;
99         res->irq_resource[i].end = irq;
100         pcibios_penalize_isa_irq(irq, 1);
101 }
102
103 static void
104 pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table * res, u32 dma)
105 {
106         int i = 0;
107         while (i < PNP_MAX_DMA &&
108                         !(res->dma_resource[i].flags & IORESOURCE_UNSET))
109                 i++;
110         if (i < PNP_MAX_DMA) {
111                 res->dma_resource[i].flags = IORESOURCE_DMA;  // Also clears _UNSET flag
112                 if (dma == -1) {
113                         res->dma_resource[i].flags |= IORESOURCE_DISABLED;
114                         return;
115                 }
116                 res->dma_resource[i].start = dma;
117                 res->dma_resource[i].end = dma;
118         }
119 }
120
121 static void
122 pnpacpi_parse_allocated_ioresource(struct pnp_resource_table * res,
123         u32 io, u32 len)
124 {
125         int i = 0;
126         while (!(res->port_resource[i].flags & IORESOURCE_UNSET) &&
127                         i < PNP_MAX_PORT)
128                 i++;
129         if (i < PNP_MAX_PORT) {
130                 res->port_resource[i].flags = IORESOURCE_IO;  // Also clears _UNSET flag
131                 if (len <= 0 || (io + len -1) >= 0x10003) {
132                         res->port_resource[i].flags |= IORESOURCE_DISABLED;
133                         return;
134                 }
135                 res->port_resource[i].start = io;
136                 res->port_resource[i].end = io + len - 1;
137         }
138 }
139
140 static void
141 pnpacpi_parse_allocated_memresource(struct pnp_resource_table * res,
142         u64 mem, u64 len)
143 {
144         int i = 0;
145         while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) &&
146                         (i < PNP_MAX_MEM))
147                 i++;
148         if (i < PNP_MAX_MEM) {
149                 res->mem_resource[i].flags = IORESOURCE_MEM;  // Also clears _UNSET flag
150                 if (len <= 0) {
151                         res->mem_resource[i].flags |= IORESOURCE_DISABLED;
152                         return;
153                 }
154                 res->mem_resource[i].start = mem;
155                 res->mem_resource[i].end = mem + len - 1;
156         }
157 }
158
159
160 static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
161         void *data)
162 {
163         struct pnp_resource_table * res_table = (struct pnp_resource_table *)data;
164         int i;
165
166         switch (res->type) {
167         case ACPI_RESOURCE_TYPE_IRQ:
168                 /*
169                  * Per spec, only one interrupt per descriptor is allowed in
170                  * _CRS, but some firmware violates this, so parse them all.
171                  */
172                 for (i = 0; i < res->data.irq.interrupt_count; i++) {
173                         pnpacpi_parse_allocated_irqresource(res_table,
174                                 res->data.irq.interrupts[i],
175                                 res->data.irq.triggering,
176                                 res->data.irq.polarity);
177                 }
178                 break;
179
180         case ACPI_RESOURCE_TYPE_DMA:
181                 if (res->data.dma.channel_count > 0)
182                         pnpacpi_parse_allocated_dmaresource(res_table,
183                                         res->data.dma.channels[0]);
184                 break;
185
186         case ACPI_RESOURCE_TYPE_IO:
187                 pnpacpi_parse_allocated_ioresource(res_table,
188                                 res->data.io.minimum,
189                                 res->data.io.address_length);
190                 break;
191
192         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
193         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
194                 break;
195
196         case ACPI_RESOURCE_TYPE_FIXED_IO:
197                 pnpacpi_parse_allocated_ioresource(res_table,
198                                 res->data.fixed_io.address,
199                                 res->data.fixed_io.address_length);
200                 break;
201
202         case ACPI_RESOURCE_TYPE_VENDOR:
203                 break;
204
205         case ACPI_RESOURCE_TYPE_END_TAG:
206                 break;
207
208         case ACPI_RESOURCE_TYPE_MEMORY24:
209                 pnpacpi_parse_allocated_memresource(res_table,
210                                 res->data.memory24.minimum,
211                                 res->data.memory24.address_length);
212                 break;
213         case ACPI_RESOURCE_TYPE_MEMORY32:
214                 pnpacpi_parse_allocated_memresource(res_table,
215                                 res->data.memory32.minimum,
216                                 res->data.memory32.address_length);
217                 break;
218         case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
219                 pnpacpi_parse_allocated_memresource(res_table,
220                                 res->data.fixed_memory32.address,
221                                 res->data.fixed_memory32.address_length);
222                 break;
223         case ACPI_RESOURCE_TYPE_ADDRESS16:
224                 pnpacpi_parse_allocated_memresource(res_table,
225                                 res->data.address16.minimum,
226                                 res->data.address16.address_length);
227                 break;
228         case ACPI_RESOURCE_TYPE_ADDRESS32:
229                 pnpacpi_parse_allocated_memresource(res_table,
230                                 res->data.address32.minimum,
231                                 res->data.address32.address_length);
232                 break;
233         case ACPI_RESOURCE_TYPE_ADDRESS64:
234                 pnpacpi_parse_allocated_memresource(res_table,
235                 res->data.address64.minimum,
236                 res->data.address64.address_length);
237                 break;
238
239         case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
240                 break;
241
242         case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
243                 for (i = 0; i < res->data.extended_irq.interrupt_count; i++) {
244                         pnpacpi_parse_allocated_irqresource(res_table,
245                                 res->data.extended_irq.interrupts[i],
246                                 res->data.extended_irq.triggering,
247                                 res->data.extended_irq.polarity);
248                 }
249                 break;
250
251         case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
252                 break;
253
254         default:
255                 pnp_warn("PnPACPI: unknown resource type %d", res->type);
256                 return AE_ERROR;
257         }
258                         
259         return AE_OK;
260 }
261
262 acpi_status pnpacpi_parse_allocated_resource(acpi_handle handle, struct pnp_resource_table * res)
263 {
264         /* Blank the resource table values */
265         pnp_init_resource_table(res);
266
267         return acpi_walk_resources(handle, METHOD_NAME__CRS, pnpacpi_allocated_resource, res);
268 }
269
270 static void pnpacpi_parse_dma_option(struct pnp_option *option, struct acpi_resource_dma *p)
271 {
272         int i;
273         struct pnp_dma * dma;
274
275         if (p->channel_count == 0)
276                 return;
277         dma = kcalloc(1, sizeof(struct pnp_dma), GFP_KERNEL);
278         if (!dma)
279                 return;
280
281         for(i = 0; i < p->channel_count; i++)
282                 dma->map |= 1 << p->channels[i];
283         dma->flags = 0;
284         if (p->bus_master)
285                 dma->flags |= IORESOURCE_DMA_MASTER;
286         switch (p->type) {
287         case ACPI_COMPATIBILITY:
288                 dma->flags |= IORESOURCE_DMA_COMPATIBLE;
289                 break;
290         case ACPI_TYPE_A:
291                 dma->flags |= IORESOURCE_DMA_TYPEA;
292                 break;
293         case ACPI_TYPE_B:
294                 dma->flags |= IORESOURCE_DMA_TYPEB;
295                 break;
296         case ACPI_TYPE_F:
297                 dma->flags |= IORESOURCE_DMA_TYPEF;
298                 break;
299         default:
300                 /* Set a default value ? */
301                 dma->flags |= IORESOURCE_DMA_COMPATIBLE;
302                 pnp_err("Invalid DMA type");
303         }
304         switch (p->transfer) {
305         case ACPI_TRANSFER_8:
306                 dma->flags |= IORESOURCE_DMA_8BIT;
307                 break;
308         case ACPI_TRANSFER_8_16:
309                 dma->flags |= IORESOURCE_DMA_8AND16BIT;
310                 break;
311         case ACPI_TRANSFER_16:
312                 dma->flags |= IORESOURCE_DMA_16BIT;
313                 break;
314         default:
315                 /* Set a default value ? */
316                 dma->flags |= IORESOURCE_DMA_8AND16BIT;
317                 pnp_err("Invalid DMA transfer type");
318         }
319
320         pnp_register_dma_resource(option,dma);
321         return;
322 }
323
324         
325 static void pnpacpi_parse_irq_option(struct pnp_option *option,
326         struct acpi_resource_irq *p)
327 {
328         int i;
329         struct pnp_irq * irq;
330         
331         if (p->interrupt_count == 0)
332                 return;
333         irq = kcalloc(1, sizeof(struct pnp_irq), GFP_KERNEL);
334         if (!irq)
335                 return;
336
337         for(i = 0; i < p->interrupt_count; i++)
338                 if (p->interrupts[i])
339                         __set_bit(p->interrupts[i], irq->map);
340         irq->flags = irq_flags(p->triggering, p->polarity);
341
342         pnp_register_irq_resource(option, irq);
343         return;
344 }
345
346 static void pnpacpi_parse_ext_irq_option(struct pnp_option *option,
347         struct acpi_resource_extended_irq *p)
348 {
349         int i;
350         struct pnp_irq * irq;
351
352         if (p->interrupt_count == 0)
353                 return;
354         irq = kcalloc(1, sizeof(struct pnp_irq), GFP_KERNEL);
355         if (!irq)
356                 return;
357
358         for(i = 0; i < p->interrupt_count; i++)
359                 if (p->interrupts[i])
360                         __set_bit(p->interrupts[i], irq->map);
361         irq->flags = irq_flags(p->triggering, p->polarity);
362
363         pnp_register_irq_resource(option, irq);
364         return;
365 }
366
367 static void
368 pnpacpi_parse_port_option(struct pnp_option *option,
369         struct acpi_resource_io *io)
370 {
371         struct pnp_port * port;
372
373         if (io->address_length == 0)
374                 return;
375         port = kcalloc(1, sizeof(struct pnp_port), GFP_KERNEL);
376         if (!port)
377                 return;
378         port->min = io->minimum;
379         port->max = io->maximum;
380         port->align = io->alignment;
381         port->size = io->address_length;
382         port->flags = ACPI_DECODE_16 == io->io_decode ?
383                 PNP_PORT_FLAG_16BITADDR : 0;
384         pnp_register_port_resource(option,port);
385         return;
386 }
387
388 static void
389 pnpacpi_parse_fixed_port_option(struct pnp_option *option,
390         struct acpi_resource_fixed_io *io)
391 {
392         struct pnp_port * port;
393
394         if (io->address_length == 0)
395                 return;
396         port = kcalloc(1, sizeof(struct pnp_port), GFP_KERNEL);
397         if (!port)
398                 return;
399         port->min = port->max = io->address;
400         port->size = io->address_length;
401         port->align = 0;
402         port->flags = PNP_PORT_FLAG_FIXED;
403         pnp_register_port_resource(option,port);
404         return;
405 }
406
407 static void
408 pnpacpi_parse_mem24_option(struct pnp_option *option,
409         struct acpi_resource_memory24 *p)
410 {
411         struct pnp_mem * mem;
412
413         if (p->address_length == 0)
414                 return;
415         mem = kcalloc(1, sizeof(struct pnp_mem), GFP_KERNEL);
416         if (!mem)
417                 return;
418         mem->min = p->minimum;
419         mem->max = p->maximum;
420         mem->align = p->alignment;
421         mem->size = p->address_length;
422
423         mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
424                         IORESOURCE_MEM_WRITEABLE : 0;
425
426         pnp_register_mem_resource(option,mem);
427         return;
428 }
429
430 static void
431 pnpacpi_parse_mem32_option(struct pnp_option *option,
432         struct acpi_resource_memory32 *p)
433 {
434         struct pnp_mem * mem;
435
436         if (p->address_length == 0)
437                 return;
438         mem = kcalloc(1, sizeof(struct pnp_mem), GFP_KERNEL);
439         if (!mem)
440                 return;
441         mem->min = p->minimum;
442         mem->max = p->maximum;
443         mem->align = p->alignment;
444         mem->size = p->address_length;
445
446         mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
447                         IORESOURCE_MEM_WRITEABLE : 0;
448
449         pnp_register_mem_resource(option,mem);
450         return;
451 }
452
453 static void
454 pnpacpi_parse_fixed_mem32_option(struct pnp_option *option,
455         struct acpi_resource_fixed_memory32 *p)
456 {
457         struct pnp_mem * mem;
458
459         if (p->address_length == 0)
460                 return;
461         mem = kcalloc(1, sizeof(struct pnp_mem), GFP_KERNEL);
462         if (!mem)
463                 return;
464         mem->min = mem->max = p->address;
465         mem->size = p->address_length;
466         mem->align = 0;
467
468         mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
469                         IORESOURCE_MEM_WRITEABLE : 0;
470
471         pnp_register_mem_resource(option,mem);
472         return;
473 }
474
475 static void
476 pnpacpi_parse_address_option(struct pnp_option *option, struct acpi_resource *r)
477 {
478         struct acpi_resource_address64 addr, *p = &addr;
479         acpi_status status;
480         struct pnp_mem * mem;
481         struct pnp_port * port;
482
483         status = acpi_resource_to_address64(r, p);
484         if (!ACPI_SUCCESS(status)) {
485                 pnp_warn("PnPACPI: failed to convert resource type %d", r->type);
486                 return;
487         }
488
489         if (p->address_length == 0)
490                 return;
491
492         if (p->resource_type == ACPI_MEMORY_RANGE) {
493                 mem = kcalloc(1, sizeof(struct pnp_mem), GFP_KERNEL);
494                 if (!mem)
495                         return;
496                 mem->min = mem->max = p->minimum;
497                 mem->size = p->address_length;
498                 mem->align = 0;
499                 mem->flags = (p->info.mem.write_protect ==
500                     ACPI_READ_WRITE_MEMORY) ? IORESOURCE_MEM_WRITEABLE : 0;
501                 pnp_register_mem_resource(option,mem);
502         } else if (p->resource_type == ACPI_IO_RANGE) {
503                 port = kcalloc(1, sizeof(struct pnp_port), GFP_KERNEL);
504                 if (!port)
505                         return;
506                 port->min = port->max = p->minimum;
507                 port->size = p->address_length;
508                 port->align = 0;
509                 port->flags = PNP_PORT_FLAG_FIXED;
510                 pnp_register_port_resource(option,port);
511         }
512 }
513
514 struct acpipnp_parse_option_s {
515         struct pnp_option *option;
516         struct pnp_option *option_independent;
517         struct pnp_dev *dev;
518 };
519
520 static acpi_status pnpacpi_option_resource(struct acpi_resource *res,
521         void *data)
522 {
523         int priority = 0;
524         struct acpipnp_parse_option_s *parse_data = (struct acpipnp_parse_option_s *)data;
525         struct pnp_dev *dev = parse_data->dev;
526         struct pnp_option *option = parse_data->option;
527
528         switch (res->type) {
529                 case ACPI_RESOURCE_TYPE_IRQ:
530                         pnpacpi_parse_irq_option(option, &res->data.irq);
531                         break;
532
533                 case ACPI_RESOURCE_TYPE_DMA:
534                         pnpacpi_parse_dma_option(option, &res->data.dma);       
535                         break;
536
537                 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
538                         switch (res->data.start_dpf.compatibility_priority) {
539                                 case ACPI_GOOD_CONFIGURATION:
540                                         priority = PNP_RES_PRIORITY_PREFERRED;
541                                         break;
542                                         
543                                 case ACPI_ACCEPTABLE_CONFIGURATION:
544                                         priority = PNP_RES_PRIORITY_ACCEPTABLE;
545                                         break;
546
547                                 case ACPI_SUB_OPTIMAL_CONFIGURATION:
548                                         priority = PNP_RES_PRIORITY_FUNCTIONAL;
549                                         break;
550                                 default:
551                                         priority = PNP_RES_PRIORITY_INVALID;
552                                         break;
553                         }
554                         /* TBD: Considering performace/robustness bits */
555                         option = pnp_register_dependent_option(dev, priority);
556                         if (!option)
557                                 return AE_ERROR;
558                         parse_data->option = option;    
559                         break;
560
561                 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
562                         /*only one EndDependentFn is allowed*/
563                         if (!parse_data->option_independent) {
564                                 pnp_warn("PnPACPI: more than one EndDependentFn");
565                                 return AE_ERROR;
566                         }
567                         parse_data->option = parse_data->option_independent;
568                         parse_data->option_independent = NULL;
569                         break;
570
571                 case ACPI_RESOURCE_TYPE_IO:
572                         pnpacpi_parse_port_option(option, &res->data.io);
573                         break;
574
575                 case ACPI_RESOURCE_TYPE_FIXED_IO:
576                         pnpacpi_parse_fixed_port_option(option,
577                                 &res->data.fixed_io);
578                         break;
579
580                 case ACPI_RESOURCE_TYPE_VENDOR:
581                 case ACPI_RESOURCE_TYPE_END_TAG:
582                         break;
583
584                 case ACPI_RESOURCE_TYPE_MEMORY24:
585                         pnpacpi_parse_mem24_option(option, &res->data.memory24);
586                         break;
587
588                 case ACPI_RESOURCE_TYPE_MEMORY32:
589                         pnpacpi_parse_mem32_option(option, &res->data.memory32);
590                         break;
591
592                 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
593                         pnpacpi_parse_fixed_mem32_option(option,
594                                 &res->data.fixed_memory32);
595                         break;
596
597                 case ACPI_RESOURCE_TYPE_ADDRESS16:
598                 case ACPI_RESOURCE_TYPE_ADDRESS32:
599                 case ACPI_RESOURCE_TYPE_ADDRESS64:
600                         pnpacpi_parse_address_option(option, res);
601                         break;
602
603                 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
604                         break;
605
606                 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
607                         pnpacpi_parse_ext_irq_option(option,
608                                 &res->data.extended_irq);
609                         break;
610
611                 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
612                         break;
613
614                 default:
615                         pnp_warn("PnPACPI: unknown resource type %d", res->type);
616                         return AE_ERROR;
617         }
618                         
619         return AE_OK;
620 }
621
622 acpi_status pnpacpi_parse_resource_option_data(acpi_handle handle,
623         struct pnp_dev *dev)
624 {
625         acpi_status status;
626         struct acpipnp_parse_option_s parse_data;
627
628         parse_data.option = pnp_register_independent_option(dev);
629         if (!parse_data.option)
630                 return AE_ERROR;
631         parse_data.option_independent = parse_data.option;
632         parse_data.dev = dev;
633         status = acpi_walk_resources(handle, METHOD_NAME__PRS,
634                 pnpacpi_option_resource, &parse_data);
635
636         return status;
637 }
638
639 /*
640  * Set resource
641  */
642 static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
643         void *data)
644 {
645         int *res_cnt = (int *)data;
646         switch (res->type) {
647         case ACPI_RESOURCE_TYPE_IRQ:
648         case ACPI_RESOURCE_TYPE_DMA:
649         case ACPI_RESOURCE_TYPE_IO:
650         case ACPI_RESOURCE_TYPE_FIXED_IO:
651         case ACPI_RESOURCE_TYPE_MEMORY24:
652         case ACPI_RESOURCE_TYPE_MEMORY32:
653         case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
654         case ACPI_RESOURCE_TYPE_ADDRESS16:
655         case ACPI_RESOURCE_TYPE_ADDRESS32:
656         case ACPI_RESOURCE_TYPE_ADDRESS64:
657         case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
658                 (*res_cnt) ++;
659         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
660         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
661         case ACPI_RESOURCE_TYPE_VENDOR:
662         case ACPI_RESOURCE_TYPE_END_TAG:
663         case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
664         default:
665                 return AE_OK;
666         }
667         return AE_OK;
668 }
669
670 static acpi_status pnpacpi_type_resources(struct acpi_resource *res,
671         void *data)
672 {
673         struct acpi_resource **resource = (struct acpi_resource **)data;        
674         switch (res->type) {
675         case ACPI_RESOURCE_TYPE_IRQ:
676         case ACPI_RESOURCE_TYPE_DMA:
677         case ACPI_RESOURCE_TYPE_IO:
678         case ACPI_RESOURCE_TYPE_FIXED_IO:
679         case ACPI_RESOURCE_TYPE_MEMORY24:
680         case ACPI_RESOURCE_TYPE_MEMORY32:
681         case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
682         case ACPI_RESOURCE_TYPE_ADDRESS16:
683         case ACPI_RESOURCE_TYPE_ADDRESS32:
684         case ACPI_RESOURCE_TYPE_ADDRESS64:
685         case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
686                 (*resource)->type = res->type;
687                 (*resource)++;
688         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
689         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
690         case ACPI_RESOURCE_TYPE_VENDOR:
691         case ACPI_RESOURCE_TYPE_END_TAG:
692         case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
693         default:
694                 return AE_OK;
695         }
696
697         return AE_OK;
698 }
699
700 int pnpacpi_build_resource_template(acpi_handle handle,
701         struct acpi_buffer *buffer)
702 {
703         struct acpi_resource *resource;
704         int res_cnt = 0;
705         acpi_status status;
706
707         status = acpi_walk_resources(handle, METHOD_NAME__CRS,
708                 pnpacpi_count_resources, &res_cnt);
709         if (ACPI_FAILURE(status)) {
710                 pnp_err("Evaluate _CRS failed");
711                 return -EINVAL;
712         }
713         if (!res_cnt)
714                 return -EINVAL;
715         buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
716         buffer->pointer = kcalloc(1, buffer->length - 1, GFP_KERNEL);
717         if (!buffer->pointer)
718                 return -ENOMEM;
719         pnp_dbg("Res cnt %d", res_cnt);
720         resource = (struct acpi_resource *)buffer->pointer;
721         status = acpi_walk_resources(handle, METHOD_NAME__CRS,
722                 pnpacpi_type_resources, &resource);
723         if (ACPI_FAILURE(status)) {
724                 kfree(buffer->pointer);
725                 pnp_err("Evaluate _CRS failed");
726                 return -EINVAL;
727         }
728         /* resource will pointer the end resource now */
729         resource->type = ACPI_RESOURCE_TYPE_END_TAG;
730
731         return 0;
732 }
733
734 static void pnpacpi_encode_irq(struct acpi_resource *resource,
735         struct resource *p)
736 {
737         int triggering, polarity;
738         
739         decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering,
740                 &polarity);
741         resource->type = ACPI_RESOURCE_TYPE_IRQ;
742         resource->length = sizeof(struct acpi_resource);
743         resource->data.irq.triggering = triggering;
744         resource->data.irq.polarity = polarity;
745         if (triggering == ACPI_EDGE_SENSITIVE)
746                 resource->data.irq.sharable = ACPI_EXCLUSIVE;
747         else
748                 resource->data.irq.sharable = ACPI_SHARED;
749         resource->data.irq.interrupt_count = 1;
750         resource->data.irq.interrupts[0] = p->start;
751 }
752
753 static void pnpacpi_encode_ext_irq(struct acpi_resource *resource,
754         struct resource *p)
755 {
756         int triggering, polarity;
757         
758         decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering,
759                 &polarity);
760         resource->type = ACPI_RESOURCE_TYPE_EXTENDED_IRQ;
761         resource->length = sizeof(struct acpi_resource);
762         resource->data.extended_irq.producer_consumer = ACPI_CONSUMER;
763         resource->data.extended_irq.triggering = triggering;
764         resource->data.extended_irq.polarity = polarity;
765         if (triggering == ACPI_EDGE_SENSITIVE)
766                 resource->data.irq.sharable = ACPI_EXCLUSIVE;
767         else
768                 resource->data.irq.sharable = ACPI_SHARED;
769         resource->data.extended_irq.interrupt_count = 1;
770         resource->data.extended_irq.interrupts[0] = p->start;
771 }
772
773 static void pnpacpi_encode_dma(struct acpi_resource *resource,
774         struct resource *p)
775 {
776         resource->type = ACPI_RESOURCE_TYPE_DMA;
777         resource->length = sizeof(struct acpi_resource);
778         /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
779         if (p->flags & IORESOURCE_DMA_COMPATIBLE)
780                 resource->data.dma.type = ACPI_COMPATIBILITY;
781         else if (p->flags & IORESOURCE_DMA_TYPEA)
782                 resource->data.dma.type = ACPI_TYPE_A;
783         else if (p->flags & IORESOURCE_DMA_TYPEB)
784                 resource->data.dma.type = ACPI_TYPE_B;
785         else if (p->flags & IORESOURCE_DMA_TYPEF)
786                 resource->data.dma.type = ACPI_TYPE_F;
787         if (p->flags & IORESOURCE_DMA_8BIT)
788                 resource->data.dma.transfer = ACPI_TRANSFER_8;
789         else if (p->flags & IORESOURCE_DMA_8AND16BIT)
790                 resource->data.dma.transfer = ACPI_TRANSFER_8_16;
791         else if (p->flags & IORESOURCE_DMA_16BIT)
792                 resource->data.dma.transfer = ACPI_TRANSFER_16;
793         resource->data.dma.bus_master = p->flags & IORESOURCE_DMA_MASTER;
794         resource->data.dma.channel_count = 1;
795         resource->data.dma.channels[0] = p->start;
796 }
797
798 static void pnpacpi_encode_io(struct acpi_resource *resource,
799         struct resource *p)
800 {
801         resource->type = ACPI_RESOURCE_TYPE_IO;
802         resource->length = sizeof(struct acpi_resource);
803         /* Note: pnp_assign_port will copy pnp_port->flags into p->flags */
804         resource->data.io.io_decode = (p->flags & PNP_PORT_FLAG_16BITADDR)?
805                 ACPI_DECODE_16 : ACPI_DECODE_10;
806         resource->data.io.minimum = p->start;
807         resource->data.io.maximum = p->end;
808         resource->data.io.alignment = 0; /* Correct? */
809         resource->data.io.address_length = p->end - p->start + 1;
810 }
811
812 static void pnpacpi_encode_fixed_io(struct acpi_resource *resource,
813         struct resource *p)
814 {
815         resource->type = ACPI_RESOURCE_TYPE_FIXED_IO;
816         resource->length = sizeof(struct acpi_resource);
817         resource->data.fixed_io.address = p->start;
818         resource->data.fixed_io.address_length = p->end - p->start + 1;
819 }
820
821 static void pnpacpi_encode_mem24(struct acpi_resource *resource,
822         struct resource *p)
823 {
824         resource->type = ACPI_RESOURCE_TYPE_MEMORY24;
825         resource->length = sizeof(struct acpi_resource);
826         /* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */
827         resource->data.memory24.write_protect =
828                 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
829                 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
830         resource->data.memory24.minimum = p->start;
831         resource->data.memory24.maximum = p->end;
832         resource->data.memory24.alignment = 0;
833         resource->data.memory24.address_length = p->end - p->start + 1;
834 }
835
836 static void pnpacpi_encode_mem32(struct acpi_resource *resource,
837         struct resource *p)
838 {
839         resource->type = ACPI_RESOURCE_TYPE_MEMORY32;
840         resource->length = sizeof(struct acpi_resource);
841         resource->data.memory32.write_protect =
842                 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
843                 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
844         resource->data.memory32.minimum = p->start;
845         resource->data.memory32.maximum = p->end;
846         resource->data.memory32.alignment = 0;
847         resource->data.memory32.address_length = p->end - p->start + 1;
848 }
849
850 static void pnpacpi_encode_fixed_mem32(struct acpi_resource *resource,
851         struct resource *p)
852 {
853         resource->type = ACPI_RESOURCE_TYPE_FIXED_MEMORY32;
854         resource->length = sizeof(struct acpi_resource);
855         resource->data.fixed_memory32.write_protect =
856                 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
857                 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
858         resource->data.fixed_memory32.address = p->start;
859         resource->data.fixed_memory32.address_length = p->end - p->start + 1;
860 }
861
862 int pnpacpi_encode_resources(struct pnp_resource_table *res_table,
863         struct acpi_buffer *buffer)
864 {
865         int i = 0;
866         /* pnpacpi_build_resource_template allocates extra mem */
867         int res_cnt = (buffer->length - 1)/sizeof(struct acpi_resource) - 1;
868         struct acpi_resource *resource = (struct acpi_resource*)buffer->pointer;
869         int port = 0, irq = 0, dma = 0, mem = 0;
870
871         pnp_dbg("res cnt %d", res_cnt);
872         while (i < res_cnt) {
873                 switch(resource->type) {
874                 case ACPI_RESOURCE_TYPE_IRQ:
875                         pnp_dbg("Encode irq");
876                         pnpacpi_encode_irq(resource,
877                                 &res_table->irq_resource[irq]);
878                         irq++;
879                         break;
880
881                 case ACPI_RESOURCE_TYPE_DMA:
882                         pnp_dbg("Encode dma");
883                         pnpacpi_encode_dma(resource,
884                                 &res_table->dma_resource[dma]);
885                         dma ++;
886                         break;
887                 case ACPI_RESOURCE_TYPE_IO:
888                         pnp_dbg("Encode io");
889                         pnpacpi_encode_io(resource,
890                                 &res_table->port_resource[port]);
891                         port ++;
892                         break;
893                 case ACPI_RESOURCE_TYPE_FIXED_IO:
894                         pnp_dbg("Encode fixed io");
895                         pnpacpi_encode_fixed_io(resource,
896                                 &res_table->port_resource[port]);
897                         port ++;
898                         break;
899                 case ACPI_RESOURCE_TYPE_MEMORY24:
900                         pnp_dbg("Encode mem24");
901                         pnpacpi_encode_mem24(resource,
902                                 &res_table->mem_resource[mem]);
903                         mem ++;
904                         break;
905                 case ACPI_RESOURCE_TYPE_MEMORY32:
906                         pnp_dbg("Encode mem32");
907                         pnpacpi_encode_mem32(resource,
908                                 &res_table->mem_resource[mem]);
909                         mem ++;
910                         break;
911                 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
912                         pnp_dbg("Encode fixed mem32");
913                         pnpacpi_encode_fixed_mem32(resource,
914                                 &res_table->mem_resource[mem]);
915                         mem ++;
916                         break;
917                 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
918                         pnp_dbg("Encode ext irq");
919                         pnpacpi_encode_ext_irq(resource,
920                                 &res_table->irq_resource[irq]);
921                         irq++;
922                         break;
923                 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
924                 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
925                 case ACPI_RESOURCE_TYPE_VENDOR:
926                 case ACPI_RESOURCE_TYPE_END_TAG:
927                 case ACPI_RESOURCE_TYPE_ADDRESS16:
928                 case ACPI_RESOURCE_TYPE_ADDRESS32:
929                 case ACPI_RESOURCE_TYPE_ADDRESS64:
930                 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
931                 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
932                 default: /* other type */
933                         pnp_warn("unknown resource type %d", resource->type);
934                         return -EINVAL;
935                 }
936                 resource ++;
937                 i ++;
938         }
939         return 0;
940 }