[ACPI] PNPACPI IRQ workaround for HP workstations
[linux-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 edge_level, int active_high_low)
36 {
37         int flag;
38         if (edge_level == ACPI_LEVEL_SENSITIVE) {
39                 if(active_high_low == ACPI_ACTIVE_LOW)
40                         flag = IORESOURCE_IRQ_LOWLEVEL;
41                 else
42                         flag = IORESOURCE_IRQ_HIGHLEVEL;
43         }
44         else {
45                 if(active_high_low == 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 *edge_level, int *active_high_low)
54 {
55         switch (flag) {
56         case IORESOURCE_IRQ_LOWLEVEL:
57                 *edge_level = ACPI_LEVEL_SENSITIVE;
58                 *active_high_low = ACPI_ACTIVE_LOW;
59                 break;
60         case IORESOURCE_IRQ_HIGHLEVEL:  
61                 *edge_level = ACPI_LEVEL_SENSITIVE;
62                 *active_high_low = ACPI_ACTIVE_HIGH;
63                 break;
64         case IORESOURCE_IRQ_LOWEDGE:
65                 *edge_level = ACPI_EDGE_SENSITIVE;
66                 *active_high_low = ACPI_ACTIVE_LOW;
67                 break;
68         case IORESOURCE_IRQ_HIGHEDGE:
69                 *edge_level = ACPI_EDGE_SENSITIVE;
70                 *active_high_low = 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 edge_level, int active_high_low)
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, edge_level, active_high_low);
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->id) {
167         case ACPI_RSTYPE_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.number_of_interrupts; i++) {
173                         pnpacpi_parse_allocated_irqresource(res_table,
174                                 res->data.irq.interrupts[i],
175                                 res->data.irq.edge_level,
176                                 res->data.irq.active_high_low);
177                 }
178                 break;
179
180         case ACPI_RSTYPE_EXT_IRQ:
181                 for (i = 0; i < res->data.extended_irq.number_of_interrupts; i++) {
182                         pnpacpi_parse_allocated_irqresource(res_table,
183                                 res->data.extended_irq.interrupts[i],
184                                 res->data.extended_irq.edge_level,
185                                 res->data.extended_irq.active_high_low);
186                 }
187                 break;
188         case ACPI_RSTYPE_DMA:
189                 if (res->data.dma.number_of_channels > 0)
190                         pnpacpi_parse_allocated_dmaresource(res_table, 
191                                         res->data.dma.channels[0]);
192                 break;
193         case ACPI_RSTYPE_IO:
194                 pnpacpi_parse_allocated_ioresource(res_table, 
195                                 res->data.io.min_base_address, 
196                                 res->data.io.range_length);
197                 break;
198         case ACPI_RSTYPE_FIXED_IO:
199                 pnpacpi_parse_allocated_ioresource(res_table, 
200                                 res->data.fixed_io.base_address, 
201                                 res->data.fixed_io.range_length);
202                 break;
203         case ACPI_RSTYPE_MEM24:
204                 pnpacpi_parse_allocated_memresource(res_table, 
205                                 res->data.memory24.min_base_address, 
206                                 res->data.memory24.range_length);
207                 break;
208         case ACPI_RSTYPE_MEM32:
209                 pnpacpi_parse_allocated_memresource(res_table, 
210                                 res->data.memory32.min_base_address, 
211                                 res->data.memory32.range_length);
212                 break;
213         case ACPI_RSTYPE_FIXED_MEM32:
214                 pnpacpi_parse_allocated_memresource(res_table, 
215                                 res->data.fixed_memory32.range_base_address, 
216                                 res->data.fixed_memory32.range_length);
217                 break;
218         case ACPI_RSTYPE_ADDRESS16:
219                 pnpacpi_parse_allocated_memresource(res_table, 
220                                 res->data.address16.min_address_range, 
221                                 res->data.address16.address_length);
222                 break;
223         case ACPI_RSTYPE_ADDRESS32:
224                 pnpacpi_parse_allocated_memresource(res_table, 
225                                 res->data.address32.min_address_range, 
226                                 res->data.address32.address_length);
227                 break;
228         case ACPI_RSTYPE_ADDRESS64:
229                 pnpacpi_parse_allocated_memresource(res_table, 
230                 res->data.address64.min_address_range, 
231                 res->data.address64.address_length);
232                 break;
233         case ACPI_RSTYPE_VENDOR:
234                 break;
235         default:
236                 pnp_warn("PnPACPI: unknown resource type %d", res->id);
237                 return AE_ERROR;
238         }
239                         
240         return AE_OK;
241 }
242
243 acpi_status pnpacpi_parse_allocated_resource(acpi_handle handle, struct pnp_resource_table * res)
244 {
245         /* Blank the resource table values */
246         pnp_init_resource_table(res);
247
248         return acpi_walk_resources(handle, METHOD_NAME__CRS, pnpacpi_allocated_resource, res);
249 }
250
251 static void pnpacpi_parse_dma_option(struct pnp_option *option, struct acpi_resource_dma *p)
252 {
253         int i;
254         struct pnp_dma * dma;
255
256         if (p->number_of_channels == 0)
257                 return;
258         dma = pnpacpi_kmalloc(sizeof(struct pnp_dma), GFP_KERNEL);
259         if (!dma)
260                 return;
261
262         for(i = 0; i < p->number_of_channels; i++)
263                 dma->map |= 1 << p->channels[i];
264         dma->flags = 0;
265         if (p->bus_master)
266                 dma->flags |= IORESOURCE_DMA_MASTER;
267         switch (p->type) {
268         case ACPI_COMPATIBILITY:
269                 dma->flags |= IORESOURCE_DMA_COMPATIBLE;
270                 break;
271         case ACPI_TYPE_A:
272                 dma->flags |= IORESOURCE_DMA_TYPEA;
273                 break;
274         case ACPI_TYPE_B:
275                 dma->flags |= IORESOURCE_DMA_TYPEB;
276                 break;
277         case ACPI_TYPE_F:
278                 dma->flags |= IORESOURCE_DMA_TYPEF;
279                 break;
280         default:
281                 /* Set a default value ? */
282                 dma->flags |= IORESOURCE_DMA_COMPATIBLE;
283                 pnp_err("Invalid DMA type");
284         }
285         switch (p->transfer) {
286         case ACPI_TRANSFER_8:
287                 dma->flags |= IORESOURCE_DMA_8BIT;
288                 break;
289         case ACPI_TRANSFER_8_16:
290                 dma->flags |= IORESOURCE_DMA_8AND16BIT;
291                 break;
292         case ACPI_TRANSFER_16:
293                 dma->flags |= IORESOURCE_DMA_16BIT;
294                 break;
295         default:
296                 /* Set a default value ? */
297                 dma->flags |= IORESOURCE_DMA_8AND16BIT;
298                 pnp_err("Invalid DMA transfer type");
299         }
300
301         pnp_register_dma_resource(option,dma);
302         return;
303 }
304
305         
306 static void pnpacpi_parse_irq_option(struct pnp_option *option,
307         struct acpi_resource_irq *p)
308 {
309         int i;
310         struct pnp_irq * irq;
311         
312         if (p->number_of_interrupts == 0)
313                 return;
314         irq = pnpacpi_kmalloc(sizeof(struct pnp_irq), GFP_KERNEL);
315         if (!irq)
316                 return;
317
318         for(i = 0; i < p->number_of_interrupts; i++)
319                 if (p->interrupts[i])
320                         __set_bit(p->interrupts[i], irq->map);
321         irq->flags = irq_flags(p->edge_level, p->active_high_low);
322
323         pnp_register_irq_resource(option, irq);
324         return;
325 }
326
327 static void pnpacpi_parse_ext_irq_option(struct pnp_option *option,
328         struct acpi_resource_ext_irq *p)
329 {
330         int i;
331         struct pnp_irq * irq;
332
333         if (p->number_of_interrupts == 0)
334                 return;
335         irq = pnpacpi_kmalloc(sizeof(struct pnp_irq), GFP_KERNEL);
336         if (!irq)
337                 return;
338
339         for(i = 0; i < p->number_of_interrupts; i++)
340                 if (p->interrupts[i])
341                         __set_bit(p->interrupts[i], irq->map);
342         irq->flags = irq_flags(p->edge_level, p->active_high_low);
343
344         pnp_register_irq_resource(option, irq);
345         return;
346 }
347
348 static void
349 pnpacpi_parse_port_option(struct pnp_option *option,
350         struct acpi_resource_io *io)
351 {
352         struct pnp_port * port;
353
354         if (io->range_length == 0)
355                 return;
356         port = pnpacpi_kmalloc(sizeof(struct pnp_port), GFP_KERNEL);
357         if (!port)
358                 return;
359         port->min = io->min_base_address;
360         port->max = io->max_base_address;
361         port->align = io->alignment;
362         port->size = io->range_length;
363         port->flags = ACPI_DECODE_16 == io->io_decode ? 
364                 PNP_PORT_FLAG_16BITADDR : 0;
365         pnp_register_port_resource(option,port);
366         return;
367 }
368
369 static void
370 pnpacpi_parse_fixed_port_option(struct pnp_option *option,
371         struct acpi_resource_fixed_io *io)
372 {
373         struct pnp_port * port;
374
375         if (io->range_length == 0)
376                 return;
377         port = pnpacpi_kmalloc(sizeof(struct pnp_port), GFP_KERNEL);
378         if (!port)
379                 return;
380         port->min = port->max = io->base_address;
381         port->size = io->range_length;
382         port->align = 0;
383         port->flags = PNP_PORT_FLAG_FIXED;
384         pnp_register_port_resource(option,port);
385         return;
386 }
387
388 static void
389 pnpacpi_parse_mem24_option(struct pnp_option *option,
390         struct acpi_resource_mem24 *p)
391 {
392         struct pnp_mem * mem;
393
394         if (p->range_length == 0)
395                 return;
396         mem = pnpacpi_kmalloc(sizeof(struct pnp_mem), GFP_KERNEL);
397         if (!mem)
398                 return;
399         mem->min = p->min_base_address;
400         mem->max = p->max_base_address;
401         mem->align = p->alignment;
402         mem->size = p->range_length;
403
404         mem->flags = (ACPI_READ_WRITE_MEMORY == p->read_write_attribute) ?
405                         IORESOURCE_MEM_WRITEABLE : 0;
406
407         pnp_register_mem_resource(option,mem);
408         return;
409 }
410
411 static void
412 pnpacpi_parse_mem32_option(struct pnp_option *option,
413         struct acpi_resource_mem32 *p)
414 {
415         struct pnp_mem * mem;
416
417         if (p->range_length == 0)
418                 return;
419         mem = pnpacpi_kmalloc(sizeof(struct pnp_mem), GFP_KERNEL);
420         if (!mem)
421                 return;
422         mem->min = p->min_base_address;
423         mem->max = p->max_base_address;
424         mem->align = p->alignment;
425         mem->size = p->range_length;
426
427         mem->flags = (ACPI_READ_WRITE_MEMORY == p->read_write_attribute) ?
428                         IORESOURCE_MEM_WRITEABLE : 0;
429
430         pnp_register_mem_resource(option,mem);
431         return;
432 }
433
434 static void
435 pnpacpi_parse_fixed_mem32_option(struct pnp_option *option,
436         struct acpi_resource_fixed_mem32 *p)
437 {
438         struct pnp_mem * mem;
439
440         if (p->range_length == 0)
441                 return;
442         mem = pnpacpi_kmalloc(sizeof(struct pnp_mem), GFP_KERNEL);
443         if (!mem)
444                 return;
445         mem->min = mem->max = p->range_base_address;
446         mem->size = p->range_length;
447         mem->align = 0;
448
449         mem->flags = (ACPI_READ_WRITE_MEMORY == p->read_write_attribute) ?
450                         IORESOURCE_MEM_WRITEABLE : 0;
451
452         pnp_register_mem_resource(option,mem);
453         return;
454 }
455
456 struct acpipnp_parse_option_s {
457         struct pnp_option *option;
458         struct pnp_option *option_independent;
459         struct pnp_dev *dev;
460 };
461
462 static acpi_status pnpacpi_option_resource(struct acpi_resource *res, 
463         void *data)
464 {
465         int priority = 0;
466         struct acpipnp_parse_option_s *parse_data = (struct acpipnp_parse_option_s *)data;
467         struct pnp_dev *dev = parse_data->dev;
468         struct pnp_option *option = parse_data->option;
469
470         switch (res->id) {
471                 case ACPI_RSTYPE_IRQ:
472                         pnpacpi_parse_irq_option(option, &res->data.irq);
473                         break;
474                 case ACPI_RSTYPE_EXT_IRQ:
475                         pnpacpi_parse_ext_irq_option(option,
476                                 &res->data.extended_irq);
477                         break;
478                 case ACPI_RSTYPE_DMA:
479                         pnpacpi_parse_dma_option(option, &res->data.dma);       
480                         break;
481                 case ACPI_RSTYPE_IO:
482                         pnpacpi_parse_port_option(option, &res->data.io);
483                         break;
484                 case ACPI_RSTYPE_FIXED_IO:
485                         pnpacpi_parse_fixed_port_option(option,
486                                 &res->data.fixed_io);
487                         break;
488                 case ACPI_RSTYPE_MEM24:
489                         pnpacpi_parse_mem24_option(option, &res->data.memory24);
490                         break;
491                 case ACPI_RSTYPE_MEM32:
492                         pnpacpi_parse_mem32_option(option, &res->data.memory32);
493                         break;
494                 case ACPI_RSTYPE_FIXED_MEM32:
495                         pnpacpi_parse_fixed_mem32_option(option,
496                                 &res->data.fixed_memory32);
497                         break;
498                 case ACPI_RSTYPE_START_DPF:
499                         switch (res->data.start_dpf.compatibility_priority) {
500                                 case ACPI_GOOD_CONFIGURATION:
501                                         priority = PNP_RES_PRIORITY_PREFERRED;
502                                         break;
503                                         
504                                 case ACPI_ACCEPTABLE_CONFIGURATION:
505                                         priority = PNP_RES_PRIORITY_ACCEPTABLE;
506                                         break;
507
508                                 case ACPI_SUB_OPTIMAL_CONFIGURATION:
509                                         priority = PNP_RES_PRIORITY_FUNCTIONAL;
510                                         break;
511                                 default:
512                                         priority = PNP_RES_PRIORITY_INVALID;
513                                         break;
514                         }
515                         /* TBD: Considering performace/robustness bits */
516                         option = pnp_register_dependent_option(dev, priority);
517                         if (!option)
518                                 return AE_ERROR;
519                         parse_data->option = option;    
520                         break;
521                 case ACPI_RSTYPE_END_DPF:
522                         /*only one EndDependentFn is allowed*/
523                         if (!parse_data->option_independent) {
524                                 pnp_warn("PnPACPI: more than one EndDependentFn");
525                                 return AE_ERROR;
526                         }
527                         parse_data->option = parse_data->option_independent;
528                         parse_data->option_independent = NULL;
529                         break;
530                 default:
531                         pnp_warn("PnPACPI: unknown resource type %d", res->id);
532                         return AE_ERROR;
533         }
534                         
535         return AE_OK;
536 }
537
538 acpi_status pnpacpi_parse_resource_option_data(acpi_handle handle, 
539         struct pnp_dev *dev)
540 {
541         acpi_status status;
542         struct acpipnp_parse_option_s parse_data;
543
544         parse_data.option = pnp_register_independent_option(dev);
545         if (!parse_data.option)
546                 return AE_ERROR;
547         parse_data.option_independent = parse_data.option;
548         parse_data.dev = dev;
549         status = acpi_walk_resources(handle, METHOD_NAME__PRS, 
550                 pnpacpi_option_resource, &parse_data);
551
552         return status;
553 }
554
555 /*
556  * Set resource
557  */
558 static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
559         void *data)
560 {
561         int *res_cnt = (int *)data;
562         switch (res->id) {
563         case ACPI_RSTYPE_IRQ:
564         case ACPI_RSTYPE_EXT_IRQ:
565         case ACPI_RSTYPE_DMA:
566         case ACPI_RSTYPE_IO:
567         case ACPI_RSTYPE_FIXED_IO:
568         case ACPI_RSTYPE_MEM24:
569         case ACPI_RSTYPE_MEM32:
570         case ACPI_RSTYPE_FIXED_MEM32:
571 #if 0
572         case ACPI_RSTYPE_ADDRESS16:
573         case ACPI_RSTYPE_ADDRESS32:
574         case ACPI_RSTYPE_ADDRESS64:
575 #endif
576                 (*res_cnt) ++;
577         default:
578                 return AE_OK;
579         }
580         return AE_OK;
581 }
582
583 static acpi_status pnpacpi_type_resources(struct acpi_resource *res,
584         void *data)
585 {
586         struct acpi_resource **resource = (struct acpi_resource **)data;        
587         switch (res->id) {
588         case ACPI_RSTYPE_IRQ:
589         case ACPI_RSTYPE_EXT_IRQ:
590         case ACPI_RSTYPE_DMA:
591         case ACPI_RSTYPE_IO:
592         case ACPI_RSTYPE_FIXED_IO:
593         case ACPI_RSTYPE_MEM24:
594         case ACPI_RSTYPE_MEM32:
595         case ACPI_RSTYPE_FIXED_MEM32:
596 #if 0
597         case ACPI_RSTYPE_ADDRESS16:
598         case ACPI_RSTYPE_ADDRESS32:
599         case ACPI_RSTYPE_ADDRESS64:
600 #endif
601                 (*resource)->id = res->id;
602                 (*resource)++;
603         default:
604                 return AE_OK;
605         }
606
607         return AE_OK;
608 }
609
610 int pnpacpi_build_resource_template(acpi_handle handle, 
611         struct acpi_buffer *buffer)
612 {
613         struct acpi_resource *resource;
614         int res_cnt = 0;
615         acpi_status status;
616
617         status = acpi_walk_resources(handle, METHOD_NAME__CRS, 
618                 pnpacpi_count_resources, &res_cnt);
619         if (ACPI_FAILURE(status)) {
620                 pnp_err("Evaluate _CRS failed");
621                 return -EINVAL;
622         }
623         if (!res_cnt)
624                 return -EINVAL;
625         buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
626         buffer->pointer = pnpacpi_kmalloc(buffer->length - 1, GFP_KERNEL);
627         if (!buffer->pointer)
628                 return -ENOMEM;
629         pnp_dbg("Res cnt %d", res_cnt);
630         resource = (struct acpi_resource *)buffer->pointer;
631         status = acpi_walk_resources(handle, METHOD_NAME__CRS, 
632                 pnpacpi_type_resources, &resource);
633         if (ACPI_FAILURE(status)) {
634                 kfree(buffer->pointer);
635                 pnp_err("Evaluate _CRS failed");
636                 return -EINVAL;
637         }
638         /* resource will pointer the end resource now */
639         resource->id = ACPI_RSTYPE_END_TAG;
640
641         return 0;
642 }
643
644 static void pnpacpi_encode_irq(struct acpi_resource *resource, 
645         struct resource *p)
646 {
647         int edge_level, active_high_low;
648         
649         decode_irq_flags(p->flags & IORESOURCE_BITS, &edge_level, 
650                 &active_high_low);
651         resource->id = ACPI_RSTYPE_IRQ;
652         resource->length = sizeof(struct acpi_resource);
653         resource->data.irq.edge_level = edge_level;
654         resource->data.irq.active_high_low = active_high_low;
655         if (edge_level == ACPI_EDGE_SENSITIVE)
656                 resource->data.irq.shared_exclusive = ACPI_EXCLUSIVE;
657         else
658                 resource->data.irq.shared_exclusive = ACPI_SHARED;
659         resource->data.irq.number_of_interrupts = 1;
660         resource->data.irq.interrupts[0] = p->start;
661 }
662
663 static void pnpacpi_encode_ext_irq(struct acpi_resource *resource,
664         struct resource *p)
665 {
666         int edge_level, active_high_low;
667         
668         decode_irq_flags(p->flags & IORESOURCE_BITS, &edge_level, 
669                 &active_high_low);
670         resource->id = ACPI_RSTYPE_EXT_IRQ;
671         resource->length = sizeof(struct acpi_resource);
672         resource->data.extended_irq.producer_consumer = ACPI_CONSUMER;
673         resource->data.extended_irq.edge_level = edge_level;
674         resource->data.extended_irq.active_high_low = active_high_low;
675         if (edge_level == ACPI_EDGE_SENSITIVE)
676                 resource->data.irq.shared_exclusive = ACPI_EXCLUSIVE;
677         else
678                 resource->data.irq.shared_exclusive = ACPI_SHARED;
679         resource->data.extended_irq.number_of_interrupts = 1;
680         resource->data.extended_irq.interrupts[0] = p->start;
681 }
682
683 static void pnpacpi_encode_dma(struct acpi_resource *resource,
684         struct resource *p)
685 {
686         resource->id = ACPI_RSTYPE_DMA;
687         resource->length = sizeof(struct acpi_resource);
688         /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
689         if (p->flags & IORESOURCE_DMA_COMPATIBLE)
690                 resource->data.dma.type = ACPI_COMPATIBILITY;
691         else if (p->flags & IORESOURCE_DMA_TYPEA)
692                 resource->data.dma.type = ACPI_TYPE_A;
693         else if (p->flags & IORESOURCE_DMA_TYPEB)
694                 resource->data.dma.type = ACPI_TYPE_B;
695         else if (p->flags & IORESOURCE_DMA_TYPEF)
696                 resource->data.dma.type = ACPI_TYPE_F;
697         if (p->flags & IORESOURCE_DMA_8BIT)
698                 resource->data.dma.transfer = ACPI_TRANSFER_8;
699         else if (p->flags & IORESOURCE_DMA_8AND16BIT)
700                 resource->data.dma.transfer = ACPI_TRANSFER_8_16;
701         else if (p->flags & IORESOURCE_DMA_16BIT)
702                 resource->data.dma.transfer = ACPI_TRANSFER_16;
703         resource->data.dma.bus_master = p->flags & IORESOURCE_DMA_MASTER;
704         resource->data.dma.number_of_channels = 1;
705         resource->data.dma.channels[0] = p->start;
706 }
707
708 static void pnpacpi_encode_io(struct acpi_resource *resource,
709         struct resource *p)
710 {
711         resource->id = ACPI_RSTYPE_IO;
712         resource->length = sizeof(struct acpi_resource);
713         /* Note: pnp_assign_port will copy pnp_port->flags into p->flags */
714         resource->data.io.io_decode = (p->flags & PNP_PORT_FLAG_16BITADDR)?
715                 ACPI_DECODE_16 : ACPI_DECODE_10; 
716         resource->data.io.min_base_address = p->start;
717         resource->data.io.max_base_address = p->end;
718         resource->data.io.alignment = 0; /* Correct? */
719         resource->data.io.range_length = p->end - p->start + 1;
720 }
721
722 static void pnpacpi_encode_fixed_io(struct acpi_resource *resource,
723         struct resource *p)
724 {
725         resource->id = ACPI_RSTYPE_FIXED_IO;
726         resource->length = sizeof(struct acpi_resource);
727         resource->data.fixed_io.base_address = p->start;
728         resource->data.fixed_io.range_length = p->end - p->start + 1;
729 }
730
731 static void pnpacpi_encode_mem24(struct acpi_resource *resource,
732         struct resource *p)
733 {
734         resource->id = ACPI_RSTYPE_MEM24;
735         resource->length = sizeof(struct acpi_resource);
736         /* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */
737         resource->data.memory24.read_write_attribute =
738                 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
739                 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
740         resource->data.memory24.min_base_address = p->start;
741         resource->data.memory24.max_base_address = p->end;
742         resource->data.memory24.alignment = 0;
743         resource->data.memory24.range_length = p->end - p->start + 1;
744 }
745
746 static void pnpacpi_encode_mem32(struct acpi_resource *resource,
747         struct resource *p)
748 {
749         resource->id = ACPI_RSTYPE_MEM32;
750         resource->length = sizeof(struct acpi_resource);
751         resource->data.memory32.read_write_attribute =
752                 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
753                 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
754         resource->data.memory32.min_base_address = p->start;
755         resource->data.memory32.max_base_address = p->end;
756         resource->data.memory32.alignment = 0;
757         resource->data.memory32.range_length = p->end - p->start + 1;
758 }
759
760 static void pnpacpi_encode_fixed_mem32(struct acpi_resource *resource,
761         struct resource *p)
762 {
763         resource->id = ACPI_RSTYPE_FIXED_MEM32;
764         resource->length = sizeof(struct acpi_resource);
765         resource->data.fixed_memory32.read_write_attribute =
766                 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
767                 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
768         resource->data.fixed_memory32.range_base_address = p->start;
769         resource->data.fixed_memory32.range_length = p->end - p->start + 1;
770 }
771
772 int pnpacpi_encode_resources(struct pnp_resource_table *res_table, 
773         struct acpi_buffer *buffer)
774 {
775         int i = 0;
776         /* pnpacpi_build_resource_template allocates extra mem */
777         int res_cnt = (buffer->length - 1)/sizeof(struct acpi_resource) - 1;
778         struct acpi_resource *resource = (struct acpi_resource*)buffer->pointer;
779         int port = 0, irq = 0, dma = 0, mem = 0;
780
781         pnp_dbg("res cnt %d", res_cnt);
782         while (i < res_cnt) {
783                 switch(resource->id) {
784                 case ACPI_RSTYPE_IRQ:
785                         pnp_dbg("Encode irq");
786                         pnpacpi_encode_irq(resource, 
787                                 &res_table->irq_resource[irq]);
788                         irq++;
789                         break;
790
791                 case ACPI_RSTYPE_EXT_IRQ:
792                         pnp_dbg("Encode ext irq");
793                         pnpacpi_encode_ext_irq(resource, 
794                                 &res_table->irq_resource[irq]);
795                         irq++;
796                         break;
797                 case ACPI_RSTYPE_DMA:
798                         pnp_dbg("Encode dma");
799                         pnpacpi_encode_dma(resource, 
800                                 &res_table->dma_resource[dma]);
801                         dma ++;
802                         break;
803                 case ACPI_RSTYPE_IO:
804                         pnp_dbg("Encode io");
805                         pnpacpi_encode_io(resource, 
806                                 &res_table->port_resource[port]);
807                         port ++;
808                         break;
809                 case ACPI_RSTYPE_FIXED_IO:
810                         pnp_dbg("Encode fixed io");
811                         pnpacpi_encode_fixed_io(resource,
812                                 &res_table->port_resource[port]);
813                         port ++;
814                         break;
815                 case ACPI_RSTYPE_MEM24:
816                         pnp_dbg("Encode mem24");
817                         pnpacpi_encode_mem24(resource,
818                                 &res_table->mem_resource[mem]);
819                         mem ++;
820                         break;
821                 case ACPI_RSTYPE_MEM32:
822                         pnp_dbg("Encode mem32");
823                         pnpacpi_encode_mem32(resource,
824                                 &res_table->mem_resource[mem]);
825                         mem ++;
826                         break;
827                 case ACPI_RSTYPE_FIXED_MEM32:
828                         pnp_dbg("Encode fixed mem32");
829                         pnpacpi_encode_fixed_mem32(resource,
830                                 &res_table->mem_resource[mem]);
831                         mem ++;
832                         break;
833                 default: /* other type */
834                         pnp_warn("unknown resource type %d", resource->id);
835                         return -EINVAL;
836                 }
837                 resource ++;
838                 i ++;
839         }
840         return 0;
841 }