75575f6c349c65919871f32afe3dc8e83fbc3219
[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, int irq)
77 {
78         int i = 0;
79         while (!(res->irq_resource[i].flags & IORESOURCE_UNSET) &&
80                         i < PNP_MAX_IRQ)
81                 i++;
82         if (i < PNP_MAX_IRQ) {
83                 res->irq_resource[i].flags = IORESOURCE_IRQ;  //Also clears _UNSET flag
84                 if (irq == -1) {
85                         res->irq_resource[i].flags |= IORESOURCE_DISABLED;
86                         return;
87                 }
88                 res->irq_resource[i].start =(unsigned long) irq;
89                 res->irq_resource[i].end = (unsigned long) irq;
90         }
91 }
92
93 static void
94 pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table * res, int dma)
95 {
96         int i = 0;
97         while (i < PNP_MAX_DMA &&
98                         !(res->dma_resource[i].flags & IORESOURCE_UNSET))
99                 i++;
100         if (i < PNP_MAX_DMA) {
101                 res->dma_resource[i].flags = IORESOURCE_DMA;  // Also clears _UNSET flag
102                 if (dma == -1) {
103                         res->dma_resource[i].flags |= IORESOURCE_DISABLED;
104                         return;
105                 }
106                 res->dma_resource[i].start =(unsigned long) dma;
107                 res->dma_resource[i].end = (unsigned long) dma;
108         }
109 }
110
111 static void
112 pnpacpi_parse_allocated_ioresource(struct pnp_resource_table * res,
113         int io, int len)
114 {
115         int i = 0;
116         while (!(res->port_resource[i].flags & IORESOURCE_UNSET) &&
117                         i < PNP_MAX_PORT)
118                 i++;
119         if (i < PNP_MAX_PORT) {
120                 res->port_resource[i].flags = IORESOURCE_IO;  // Also clears _UNSET flag
121                 if (len <= 0 || (io + len -1) >= 0x10003) {
122                         res->port_resource[i].flags |= IORESOURCE_DISABLED;
123                         return;
124                 }
125                 res->port_resource[i].start = (unsigned long) io;
126                 res->port_resource[i].end = (unsigned long)(io + len - 1);
127         }
128 }
129
130 static void
131 pnpacpi_parse_allocated_memresource(struct pnp_resource_table * res,
132         int mem, int len)
133 {
134         int i = 0;
135         while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) &&
136                         (i < PNP_MAX_MEM))
137                 i++;
138         if (i < PNP_MAX_MEM) {
139                 res->mem_resource[i].flags = IORESOURCE_MEM;  // Also clears _UNSET flag
140                 if (len <= 0) {
141                         res->mem_resource[i].flags |= IORESOURCE_DISABLED;
142                         return;
143                 }
144                 res->mem_resource[i].start = (unsigned long) mem;
145                 res->mem_resource[i].end = (unsigned long)(mem + len - 1);
146         }
147 }
148
149
150 static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
151         void *data)
152 {
153         struct pnp_resource_table * res_table = (struct pnp_resource_table *)data;
154
155         switch (res->id) {
156         case ACPI_RSTYPE_IRQ:
157                 if ((res->data.irq.number_of_interrupts > 0) &&
158                         valid_IRQ(res->data.irq.interrupts[0])) {
159                         pnpacpi_parse_allocated_irqresource(res_table, 
160                                 acpi_register_gsi(res->data.irq.interrupts[0],
161                                         res->data.irq.edge_level,
162                                         res->data.irq.active_high_low));
163                         pcibios_penalize_isa_irq(res->data.irq.interrupts[0], 1);
164                 }
165                 break;
166
167         case ACPI_RSTYPE_EXT_IRQ:
168                 if ((res->data.extended_irq.number_of_interrupts > 0) &&
169                         valid_IRQ(res->data.extended_irq.interrupts[0])) {
170                         pnpacpi_parse_allocated_irqresource(res_table, 
171                                 acpi_register_gsi(res->data.extended_irq.interrupts[0],
172                                         res->data.extended_irq.edge_level,
173                                         res->data.extended_irq.active_high_low));
174                         pcibios_penalize_isa_irq(res->data.extended_irq.interrupts[0], 1);
175                 }
176                 break;
177         case ACPI_RSTYPE_DMA:
178                 if (res->data.dma.number_of_channels > 0)
179                         pnpacpi_parse_allocated_dmaresource(res_table, 
180                                         res->data.dma.channels[0]);
181                 break;
182         case ACPI_RSTYPE_IO:
183                 pnpacpi_parse_allocated_ioresource(res_table, 
184                                 res->data.io.min_base_address, 
185                                 res->data.io.range_length);
186                 break;
187         case ACPI_RSTYPE_FIXED_IO:
188                 pnpacpi_parse_allocated_ioresource(res_table, 
189                                 res->data.fixed_io.base_address, 
190                                 res->data.fixed_io.range_length);
191                 break;
192         case ACPI_RSTYPE_MEM24:
193                 pnpacpi_parse_allocated_memresource(res_table, 
194                                 res->data.memory24.min_base_address, 
195                                 res->data.memory24.range_length);
196                 break;
197         case ACPI_RSTYPE_MEM32:
198                 pnpacpi_parse_allocated_memresource(res_table, 
199                                 res->data.memory32.min_base_address, 
200                                 res->data.memory32.range_length);
201                 break;
202         case ACPI_RSTYPE_FIXED_MEM32:
203                 pnpacpi_parse_allocated_memresource(res_table, 
204                                 res->data.fixed_memory32.range_base_address, 
205                                 res->data.fixed_memory32.range_length);
206                 break;
207         case ACPI_RSTYPE_ADDRESS16:
208                 pnpacpi_parse_allocated_memresource(res_table, 
209                                 res->data.address16.min_address_range, 
210                                 res->data.address16.address_length);
211                 break;
212         case ACPI_RSTYPE_ADDRESS32:
213                 pnpacpi_parse_allocated_memresource(res_table, 
214                                 res->data.address32.min_address_range, 
215                                 res->data.address32.address_length);
216                 break;
217         case ACPI_RSTYPE_ADDRESS64:
218                 pnpacpi_parse_allocated_memresource(res_table, 
219                 res->data.address64.min_address_range, 
220                 res->data.address64.address_length);
221                 break;
222         case ACPI_RSTYPE_VENDOR:
223                 break;
224         default:
225                 pnp_warn("PnPACPI: unknown resource type %d", res->id);
226                 return AE_ERROR;
227         }
228                         
229         return AE_OK;
230 }
231
232 acpi_status pnpacpi_parse_allocated_resource(acpi_handle handle, struct pnp_resource_table * res)
233 {
234         /* Blank the resource table values */
235         pnp_init_resource_table(res);
236
237         return acpi_walk_resources(handle, METHOD_NAME__CRS, pnpacpi_allocated_resource, res);
238 }
239
240 static void pnpacpi_parse_dma_option(struct pnp_option *option, struct acpi_resource_dma *p)
241 {
242         int i;
243         struct pnp_dma * dma;
244
245         if (p->number_of_channels == 0)
246                 return;
247         dma = pnpacpi_kmalloc(sizeof(struct pnp_dma), GFP_KERNEL);
248         if (!dma)
249                 return;
250
251         for(i = 0; i < p->number_of_channels; i++)
252                 dma->map |= 1 << p->channels[i];
253         dma->flags = 0;
254         if (p->bus_master)
255                 dma->flags |= IORESOURCE_DMA_MASTER;
256         switch (p->type) {
257         case ACPI_COMPATIBILITY:
258                 dma->flags |= IORESOURCE_DMA_COMPATIBLE;
259                 break;
260         case ACPI_TYPE_A:
261                 dma->flags |= IORESOURCE_DMA_TYPEA;
262                 break;
263         case ACPI_TYPE_B:
264                 dma->flags |= IORESOURCE_DMA_TYPEB;
265                 break;
266         case ACPI_TYPE_F:
267                 dma->flags |= IORESOURCE_DMA_TYPEF;
268                 break;
269         default:
270                 /* Set a default value ? */
271                 dma->flags |= IORESOURCE_DMA_COMPATIBLE;
272                 pnp_err("Invalid DMA type");
273         }
274         switch (p->transfer) {
275         case ACPI_TRANSFER_8:
276                 dma->flags |= IORESOURCE_DMA_8BIT;
277                 break;
278         case ACPI_TRANSFER_8_16:
279                 dma->flags |= IORESOURCE_DMA_8AND16BIT;
280                 break;
281         case ACPI_TRANSFER_16:
282                 dma->flags |= IORESOURCE_DMA_16BIT;
283                 break;
284         default:
285                 /* Set a default value ? */
286                 dma->flags |= IORESOURCE_DMA_8AND16BIT;
287                 pnp_err("Invalid DMA transfer type");
288         }
289
290         pnp_register_dma_resource(option,dma);
291         return;
292 }
293
294         
295 static void pnpacpi_parse_irq_option(struct pnp_option *option,
296         struct acpi_resource_irq *p)
297 {
298         int i;
299         struct pnp_irq * irq;
300         
301         if (p->number_of_interrupts == 0)
302                 return;
303         irq = pnpacpi_kmalloc(sizeof(struct pnp_irq), GFP_KERNEL);
304         if (!irq)
305                 return;
306
307         for(i = 0; i < p->number_of_interrupts; i++)
308                 if (p->interrupts[i])
309                         __set_bit(p->interrupts[i], irq->map);
310         irq->flags = irq_flags(p->edge_level, p->active_high_low);
311
312         pnp_register_irq_resource(option, irq);
313         return;
314 }
315
316 static void pnpacpi_parse_ext_irq_option(struct pnp_option *option,
317         struct acpi_resource_ext_irq *p)
318 {
319         int i;
320         struct pnp_irq * irq;
321
322         if (p->number_of_interrupts == 0)
323                 return;
324         irq = pnpacpi_kmalloc(sizeof(struct pnp_irq), GFP_KERNEL);
325         if (!irq)
326                 return;
327
328         for(i = 0; i < p->number_of_interrupts; i++)
329                 if (p->interrupts[i])
330                         __set_bit(p->interrupts[i], irq->map);
331         irq->flags = irq_flags(p->edge_level, p->active_high_low);
332
333         pnp_register_irq_resource(option, irq);
334         return;
335 }
336
337 static void
338 pnpacpi_parse_port_option(struct pnp_option *option,
339         struct acpi_resource_io *io)
340 {
341         struct pnp_port * port;
342
343         if (io->range_length == 0)
344                 return;
345         port = pnpacpi_kmalloc(sizeof(struct pnp_port), GFP_KERNEL);
346         if (!port)
347                 return;
348         port->min = io->min_base_address;
349         port->max = io->max_base_address;
350         port->align = io->alignment;
351         port->size = io->range_length;
352         port->flags = ACPI_DECODE_16 == io->io_decode ? 
353                 PNP_PORT_FLAG_16BITADDR : 0;
354         pnp_register_port_resource(option,port);
355         return;
356 }
357
358 static void
359 pnpacpi_parse_fixed_port_option(struct pnp_option *option,
360         struct acpi_resource_fixed_io *io)
361 {
362         struct pnp_port * port;
363
364         if (io->range_length == 0)
365                 return;
366         port = pnpacpi_kmalloc(sizeof(struct pnp_port), GFP_KERNEL);
367         if (!port)
368                 return;
369         port->min = port->max = io->base_address;
370         port->size = io->range_length;
371         port->align = 0;
372         port->flags = PNP_PORT_FLAG_FIXED;
373         pnp_register_port_resource(option,port);
374         return;
375 }
376
377 static void
378 pnpacpi_parse_mem24_option(struct pnp_option *option,
379         struct acpi_resource_mem24 *p)
380 {
381         struct pnp_mem * mem;
382
383         if (p->range_length == 0)
384                 return;
385         mem = pnpacpi_kmalloc(sizeof(struct pnp_mem), GFP_KERNEL);
386         if (!mem)
387                 return;
388         mem->min = p->min_base_address;
389         mem->max = p->max_base_address;
390         mem->align = p->alignment;
391         mem->size = p->range_length;
392
393         mem->flags = (ACPI_READ_WRITE_MEMORY == p->read_write_attribute) ?
394                         IORESOURCE_MEM_WRITEABLE : 0;
395
396         pnp_register_mem_resource(option,mem);
397         return;
398 }
399
400 static void
401 pnpacpi_parse_mem32_option(struct pnp_option *option,
402         struct acpi_resource_mem32 *p)
403 {
404         struct pnp_mem * mem;
405
406         if (p->range_length == 0)
407                 return;
408         mem = pnpacpi_kmalloc(sizeof(struct pnp_mem), GFP_KERNEL);
409         if (!mem)
410                 return;
411         mem->min = p->min_base_address;
412         mem->max = p->max_base_address;
413         mem->align = p->alignment;
414         mem->size = p->range_length;
415
416         mem->flags = (ACPI_READ_WRITE_MEMORY == p->read_write_attribute) ?
417                         IORESOURCE_MEM_WRITEABLE : 0;
418
419         pnp_register_mem_resource(option,mem);
420         return;
421 }
422
423 static void
424 pnpacpi_parse_fixed_mem32_option(struct pnp_option *option,
425         struct acpi_resource_fixed_mem32 *p)
426 {
427         struct pnp_mem * mem;
428
429         if (p->range_length == 0)
430                 return;
431         mem = pnpacpi_kmalloc(sizeof(struct pnp_mem), GFP_KERNEL);
432         if (!mem)
433                 return;
434         mem->min = mem->max = p->range_base_address;
435         mem->size = p->range_length;
436         mem->align = 0;
437
438         mem->flags = (ACPI_READ_WRITE_MEMORY == p->read_write_attribute) ?
439                         IORESOURCE_MEM_WRITEABLE : 0;
440
441         pnp_register_mem_resource(option,mem);
442         return;
443 }
444
445 struct acpipnp_parse_option_s {
446         struct pnp_option *option;
447         struct pnp_option *option_independent;
448         struct pnp_dev *dev;
449 };
450
451 static acpi_status pnpacpi_option_resource(struct acpi_resource *res, 
452         void *data)
453 {
454         int priority = 0;
455         struct acpipnp_parse_option_s *parse_data = (struct acpipnp_parse_option_s *)data;
456         struct pnp_dev *dev = parse_data->dev;
457         struct pnp_option *option = parse_data->option;
458
459         switch (res->id) {
460                 case ACPI_RSTYPE_IRQ:
461                         pnpacpi_parse_irq_option(option, &res->data.irq);
462                         break;
463                 case ACPI_RSTYPE_EXT_IRQ:
464                         pnpacpi_parse_ext_irq_option(option,
465                                 &res->data.extended_irq);
466                         break;
467                 case ACPI_RSTYPE_DMA:
468                         pnpacpi_parse_dma_option(option, &res->data.dma);       
469                         break;
470                 case ACPI_RSTYPE_IO:
471                         pnpacpi_parse_port_option(option, &res->data.io);
472                         break;
473                 case ACPI_RSTYPE_FIXED_IO:
474                         pnpacpi_parse_fixed_port_option(option,
475                                 &res->data.fixed_io);
476                         break;
477                 case ACPI_RSTYPE_MEM24:
478                         pnpacpi_parse_mem24_option(option, &res->data.memory24);
479                         break;
480                 case ACPI_RSTYPE_MEM32:
481                         pnpacpi_parse_mem32_option(option, &res->data.memory32);
482                         break;
483                 case ACPI_RSTYPE_FIXED_MEM32:
484                         pnpacpi_parse_fixed_mem32_option(option,
485                                 &res->data.fixed_memory32);
486                         break;
487                 case ACPI_RSTYPE_START_DPF:
488                         switch (res->data.start_dpf.compatibility_priority) {
489                                 case ACPI_GOOD_CONFIGURATION:
490                                         priority = PNP_RES_PRIORITY_PREFERRED;
491                                         break;
492                                         
493                                 case ACPI_ACCEPTABLE_CONFIGURATION:
494                                         priority = PNP_RES_PRIORITY_ACCEPTABLE;
495                                         break;
496
497                                 case ACPI_SUB_OPTIMAL_CONFIGURATION:
498                                         priority = PNP_RES_PRIORITY_FUNCTIONAL;
499                                         break;
500                                 default:
501                                         priority = PNP_RES_PRIORITY_INVALID;
502                                         break;
503                         }
504                         /* TBD: Considering performace/robustness bits */
505                         option = pnp_register_dependent_option(dev, priority);
506                         if (!option)
507                                 return AE_ERROR;
508                         parse_data->option = option;    
509                         break;
510                 case ACPI_RSTYPE_END_DPF:
511                         /*only one EndDependentFn is allowed*/
512                         if (!parse_data->option_independent) {
513                                 pnp_warn("PnPACPI: more than one EndDependentFn");
514                                 return AE_ERROR;
515                         }
516                         parse_data->option = parse_data->option_independent;
517                         parse_data->option_independent = NULL;
518                         break;
519                 default:
520                         pnp_warn("PnPACPI: unknown resource type %d", res->id);
521                         return AE_ERROR;
522         }
523                         
524         return AE_OK;
525 }
526
527 acpi_status pnpacpi_parse_resource_option_data(acpi_handle handle, 
528         struct pnp_dev *dev)
529 {
530         acpi_status status;
531         struct acpipnp_parse_option_s parse_data;
532
533         parse_data.option = pnp_register_independent_option(dev);
534         if (!parse_data.option)
535                 return AE_ERROR;
536         parse_data.option_independent = parse_data.option;
537         parse_data.dev = dev;
538         status = acpi_walk_resources(handle, METHOD_NAME__PRS, 
539                 pnpacpi_option_resource, &parse_data);
540
541         return status;
542 }
543
544 /*
545  * Set resource
546  */
547 static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
548         void *data)
549 {
550         int *res_cnt = (int *)data;
551         switch (res->id) {
552         case ACPI_RSTYPE_IRQ:
553         case ACPI_RSTYPE_EXT_IRQ:
554         case ACPI_RSTYPE_DMA:
555         case ACPI_RSTYPE_IO:
556         case ACPI_RSTYPE_FIXED_IO:
557         case ACPI_RSTYPE_MEM24:
558         case ACPI_RSTYPE_MEM32:
559         case ACPI_RSTYPE_FIXED_MEM32:
560 #if 0
561         case ACPI_RSTYPE_ADDRESS16:
562         case ACPI_RSTYPE_ADDRESS32:
563         case ACPI_RSTYPE_ADDRESS64:
564 #endif
565                 (*res_cnt) ++;
566         default:
567                 return AE_OK;
568         }
569         return AE_OK;
570 }
571
572 static acpi_status pnpacpi_type_resources(struct acpi_resource *res,
573         void *data)
574 {
575         struct acpi_resource **resource = (struct acpi_resource **)data;        
576         switch (res->id) {
577         case ACPI_RSTYPE_IRQ:
578         case ACPI_RSTYPE_EXT_IRQ:
579         case ACPI_RSTYPE_DMA:
580         case ACPI_RSTYPE_IO:
581         case ACPI_RSTYPE_FIXED_IO:
582         case ACPI_RSTYPE_MEM24:
583         case ACPI_RSTYPE_MEM32:
584         case ACPI_RSTYPE_FIXED_MEM32:
585 #if 0
586         case ACPI_RSTYPE_ADDRESS16:
587         case ACPI_RSTYPE_ADDRESS32:
588         case ACPI_RSTYPE_ADDRESS64:
589 #endif
590                 (*resource)->id = res->id;
591                 (*resource)++;
592         default:
593                 return AE_OK;
594         }
595
596         return AE_OK;
597 }
598
599 int pnpacpi_build_resource_template(acpi_handle handle, 
600         struct acpi_buffer *buffer)
601 {
602         struct acpi_resource *resource;
603         int res_cnt = 0;
604         acpi_status status;
605
606         status = acpi_walk_resources(handle, METHOD_NAME__CRS, 
607                 pnpacpi_count_resources, &res_cnt);
608         if (ACPI_FAILURE(status)) {
609                 pnp_err("Evaluate _CRS failed");
610                 return -EINVAL;
611         }
612         if (!res_cnt)
613                 return -EINVAL;
614         buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
615         buffer->pointer = pnpacpi_kmalloc(buffer->length - 1, GFP_KERNEL);
616         if (!buffer->pointer)
617                 return -ENOMEM;
618         pnp_dbg("Res cnt %d", res_cnt);
619         resource = (struct acpi_resource *)buffer->pointer;
620         status = acpi_walk_resources(handle, METHOD_NAME__CRS, 
621                 pnpacpi_type_resources, &resource);
622         if (ACPI_FAILURE(status)) {
623                 kfree(buffer->pointer);
624                 pnp_err("Evaluate _CRS failed");
625                 return -EINVAL;
626         }
627         /* resource will pointer the end resource now */
628         resource->id = ACPI_RSTYPE_END_TAG;
629
630         return 0;
631 }
632
633 static void pnpacpi_encode_irq(struct acpi_resource *resource, 
634         struct resource *p)
635 {
636         int edge_level, active_high_low;
637         
638         decode_irq_flags(p->flags & IORESOURCE_BITS, &edge_level, 
639                 &active_high_low);
640         resource->id = ACPI_RSTYPE_IRQ;
641         resource->length = sizeof(struct acpi_resource);
642         resource->data.irq.edge_level = edge_level;
643         resource->data.irq.active_high_low = active_high_low;
644         if (edge_level == ACPI_EDGE_SENSITIVE)
645                 resource->data.irq.shared_exclusive = ACPI_EXCLUSIVE;
646         else
647                 resource->data.irq.shared_exclusive = ACPI_SHARED;
648         resource->data.irq.number_of_interrupts = 1;
649         resource->data.irq.interrupts[0] = p->start;
650 }
651
652 static void pnpacpi_encode_ext_irq(struct acpi_resource *resource,
653         struct resource *p)
654 {
655         int edge_level, active_high_low;
656         
657         decode_irq_flags(p->flags & IORESOURCE_BITS, &edge_level, 
658                 &active_high_low);
659         resource->id = ACPI_RSTYPE_EXT_IRQ;
660         resource->length = sizeof(struct acpi_resource);
661         resource->data.extended_irq.producer_consumer = ACPI_CONSUMER;
662         resource->data.extended_irq.edge_level = edge_level;
663         resource->data.extended_irq.active_high_low = active_high_low;
664         if (edge_level == ACPI_EDGE_SENSITIVE)
665                 resource->data.irq.shared_exclusive = ACPI_EXCLUSIVE;
666         else
667                 resource->data.irq.shared_exclusive = ACPI_SHARED;
668         resource->data.extended_irq.number_of_interrupts = 1;
669         resource->data.extended_irq.interrupts[0] = p->start;
670 }
671
672 static void pnpacpi_encode_dma(struct acpi_resource *resource,
673         struct resource *p)
674 {
675         resource->id = ACPI_RSTYPE_DMA;
676         resource->length = sizeof(struct acpi_resource);
677         /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
678         if (p->flags & IORESOURCE_DMA_COMPATIBLE)
679                 resource->data.dma.type = ACPI_COMPATIBILITY;
680         else if (p->flags & IORESOURCE_DMA_TYPEA)
681                 resource->data.dma.type = ACPI_TYPE_A;
682         else if (p->flags & IORESOURCE_DMA_TYPEB)
683                 resource->data.dma.type = ACPI_TYPE_B;
684         else if (p->flags & IORESOURCE_DMA_TYPEF)
685                 resource->data.dma.type = ACPI_TYPE_F;
686         if (p->flags & IORESOURCE_DMA_8BIT)
687                 resource->data.dma.transfer = ACPI_TRANSFER_8;
688         else if (p->flags & IORESOURCE_DMA_8AND16BIT)
689                 resource->data.dma.transfer = ACPI_TRANSFER_8_16;
690         else if (p->flags & IORESOURCE_DMA_16BIT)
691                 resource->data.dma.transfer = ACPI_TRANSFER_16;
692         resource->data.dma.bus_master = p->flags & IORESOURCE_DMA_MASTER;
693         resource->data.dma.number_of_channels = 1;
694         resource->data.dma.channels[0] = p->start;
695 }
696
697 static void pnpacpi_encode_io(struct acpi_resource *resource,
698         struct resource *p)
699 {
700         resource->id = ACPI_RSTYPE_IO;
701         resource->length = sizeof(struct acpi_resource);
702         /* Note: pnp_assign_port will copy pnp_port->flags into p->flags */
703         resource->data.io.io_decode = (p->flags & PNP_PORT_FLAG_16BITADDR)?
704                 ACPI_DECODE_16 : ACPI_DECODE_10; 
705         resource->data.io.min_base_address = p->start;
706         resource->data.io.max_base_address = p->end;
707         resource->data.io.alignment = 0; /* Correct? */
708         resource->data.io.range_length = p->end - p->start + 1;
709 }
710
711 static void pnpacpi_encode_fixed_io(struct acpi_resource *resource,
712         struct resource *p)
713 {
714         resource->id = ACPI_RSTYPE_FIXED_IO;
715         resource->length = sizeof(struct acpi_resource);
716         resource->data.fixed_io.base_address = p->start;
717         resource->data.fixed_io.range_length = p->end - p->start + 1;
718 }
719
720 static void pnpacpi_encode_mem24(struct acpi_resource *resource,
721         struct resource *p)
722 {
723         resource->id = ACPI_RSTYPE_MEM24;
724         resource->length = sizeof(struct acpi_resource);
725         /* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */
726         resource->data.memory24.read_write_attribute =
727                 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
728                 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
729         resource->data.memory24.min_base_address = p->start;
730         resource->data.memory24.max_base_address = p->end;
731         resource->data.memory24.alignment = 0;
732         resource->data.memory24.range_length = p->end - p->start + 1;
733 }
734
735 static void pnpacpi_encode_mem32(struct acpi_resource *resource,
736         struct resource *p)
737 {
738         resource->id = ACPI_RSTYPE_MEM32;
739         resource->length = sizeof(struct acpi_resource);
740         resource->data.memory32.read_write_attribute =
741                 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
742                 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
743         resource->data.memory32.min_base_address = p->start;
744         resource->data.memory32.max_base_address = p->end;
745         resource->data.memory32.alignment = 0;
746         resource->data.memory32.range_length = p->end - p->start + 1;
747 }
748
749 static void pnpacpi_encode_fixed_mem32(struct acpi_resource *resource,
750         struct resource *p)
751 {
752         resource->id = ACPI_RSTYPE_FIXED_MEM32;
753         resource->length = sizeof(struct acpi_resource);
754         resource->data.fixed_memory32.read_write_attribute =
755                 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
756                 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
757         resource->data.fixed_memory32.range_base_address = p->start;
758         resource->data.fixed_memory32.range_length = p->end - p->start + 1;
759 }
760
761 int pnpacpi_encode_resources(struct pnp_resource_table *res_table, 
762         struct acpi_buffer *buffer)
763 {
764         int i = 0;
765         /* pnpacpi_build_resource_template allocates extra mem */
766         int res_cnt = (buffer->length - 1)/sizeof(struct acpi_resource) - 1;
767         struct acpi_resource *resource = (struct acpi_resource*)buffer->pointer;
768         int port = 0, irq = 0, dma = 0, mem = 0;
769
770         pnp_dbg("res cnt %d", res_cnt);
771         while (i < res_cnt) {
772                 switch(resource->id) {
773                 case ACPI_RSTYPE_IRQ:
774                         pnp_dbg("Encode irq");
775                         pnpacpi_encode_irq(resource, 
776                                 &res_table->irq_resource[irq]);
777                         irq++;
778                         break;
779
780                 case ACPI_RSTYPE_EXT_IRQ:
781                         pnp_dbg("Encode ext irq");
782                         pnpacpi_encode_ext_irq(resource, 
783                                 &res_table->irq_resource[irq]);
784                         irq++;
785                         break;
786                 case ACPI_RSTYPE_DMA:
787                         pnp_dbg("Encode dma");
788                         pnpacpi_encode_dma(resource, 
789                                 &res_table->dma_resource[dma]);
790                         dma ++;
791                         break;
792                 case ACPI_RSTYPE_IO:
793                         pnp_dbg("Encode io");
794                         pnpacpi_encode_io(resource, 
795                                 &res_table->port_resource[port]);
796                         port ++;
797                         break;
798                 case ACPI_RSTYPE_FIXED_IO:
799                         pnp_dbg("Encode fixed io");
800                         pnpacpi_encode_fixed_io(resource,
801                                 &res_table->port_resource[port]);
802                         port ++;
803                         break;
804                 case ACPI_RSTYPE_MEM24:
805                         pnp_dbg("Encode mem24");
806                         pnpacpi_encode_mem24(resource,
807                                 &res_table->mem_resource[mem]);
808                         mem ++;
809                         break;
810                 case ACPI_RSTYPE_MEM32:
811                         pnp_dbg("Encode mem32");
812                         pnpacpi_encode_mem32(resource,
813                                 &res_table->mem_resource[mem]);
814                         mem ++;
815                         break;
816                 case ACPI_RSTYPE_FIXED_MEM32:
817                         pnp_dbg("Encode fixed mem32");
818                         pnpacpi_encode_fixed_mem32(resource,
819                                 &res_table->mem_resource[mem]);
820                         mem ++;
821                         break;
822                 default: /* other type */
823                         pnp_warn("unknown resource type %d", resource->id);
824                         return -EINVAL;
825                 }
826                 resource ++;
827                 i ++;
828         }
829         return 0;
830 }