git.oblomov.eu Git - linux-2.6/blob - 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, int shareable)
  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         if (shareable)
  99                 res->irq_resource[i].flags |= IORESOURCE_IRQ_SHAREABLE;
 100
 101         res->irq_resource[i].start = irq;
 102         res->irq_resource[i].end = irq;
 103         pcibios_penalize_isa_irq(irq, 1);
 104 }
 105
 106 static void
 107 pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table *res, u32 dma)
 108 {
 109         int i = 0;
 110         while (i < PNP_MAX_DMA &&
 111                         !(res->dma_resource[i].flags & IORESOURCE_UNSET))
 112                 i++;
 113         if (i < PNP_MAX_DMA) {
 114                 res->dma_resource[i].flags = IORESOURCE_DMA;  // Also clears _UNSET flag
 115                 if (dma == -1) {
 116                         res->dma_resource[i].flags |= IORESOURCE_DISABLED;
 117                         return;
 118                 }
 119                 res->dma_resource[i].start = dma;
 120                 res->dma_resource[i].end = dma;
 121         }
 122 }
 123
 124 static void
 125 pnpacpi_parse_allocated_ioresource(struct pnp_resource_table *res,
 126         u64 io, u64 len)
 127 {
 128         int i = 0;
 129         while (!(res->port_resource[i].flags & IORESOURCE_UNSET) &&
 130                         i < PNP_MAX_PORT)
 131                 i++;
 132         if (i < PNP_MAX_PORT) {
 133                 res->port_resource[i].flags = IORESOURCE_IO;  // Also clears _UNSET flag
 134                 if (len <= 0 || (io + len -1) >= 0x10003) {
 135                         res->port_resource[i].flags |= IORESOURCE_DISABLED;
 136                         return;
 137                 }
 138                 res->port_resource[i].start = io;
 139                 res->port_resource[i].end = io + len - 1;
 140         }
 141 }
 142
 143 static void
 144 pnpacpi_parse_allocated_memresource(struct pnp_resource_table *res,
 145         u64 mem, u64 len)
 146 {
 147         int i = 0;
 148         while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) &&
 149                         (i < PNP_MAX_MEM))
 150                 i++;
 151         if (i < PNP_MAX_MEM) {
 152                 res->mem_resource[i].flags = IORESOURCE_MEM;  // Also clears _UNSET flag
 153                 if (len <= 0) {
 154                         res->mem_resource[i].flags |= IORESOURCE_DISABLED;
 155                         return;
 156                 }
 157                 res->mem_resource[i].start = mem;
 158                 res->mem_resource[i].end = mem + len - 1;
 159         }
 160 }
 161
 162 static void
 163 pnpacpi_parse_allocated_address_space(struct pnp_resource_table *res_table,
 164         struct acpi_resource *res)
 165 {
 166         struct acpi_resource_address64 addr, *p = &addr;
 167         acpi_status status;
 168
 169         status = acpi_resource_to_address64(res, p);
 170         if (!ACPI_SUCCESS(status)) {
 171                 pnp_warn("PnPACPI: failed to convert resource type %d",
 172                         res->type);
 173                 return;
 174         }
 175
 176         if (p->producer_consumer == ACPI_PRODUCER)
 177                 return;
 178
 179         if (p->resource_type == ACPI_MEMORY_RANGE)
 180                 pnpacpi_parse_allocated_memresource(res_table,
 181                                 p->minimum, p->address_length);
 182         else if (p->resource_type == ACPI_IO_RANGE)
 183                 pnpacpi_parse_allocated_ioresource(res_table,
 184                                 p->minimum, p->address_length);
 185 }
 186
 187 static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
 188         void *data)
 189 {
 190         struct pnp_resource_table *res_table = (struct pnp_resource_table *)data;
 191         int i;
 192
 193         switch (res->type) {
 194         case ACPI_RESOURCE_TYPE_IRQ:
 195                 /*
 196                  * Per spec, only one interrupt per descriptor is allowed in
 197                  * _CRS, but some firmware violates this, so parse them all.
 198                  */
 199                 for (i = 0; i < res->data.irq.interrupt_count; i++) {
 200                         pnpacpi_parse_allocated_irqresource(res_table,
 201                                 res->data.irq.interrupts[i],
 202                                 res->data.irq.triggering,
 203                                 res->data.irq.polarity,
 204                                 res->data.irq.sharable);
 205                 }
 206                 break;
 207
 208         case ACPI_RESOURCE_TYPE_DMA:
 209                 if (res->data.dma.channel_count > 0)
 210                         pnpacpi_parse_allocated_dmaresource(res_table,
 211                                         res->data.dma.channels[0]);
 212                 break;
 213
 214         case ACPI_RESOURCE_TYPE_IO:
 215                 pnpacpi_parse_allocated_ioresource(res_table,
 216                                 res->data.io.minimum,
 217                                 res->data.io.address_length);
 218                 break;
 219
 220         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
 221         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
 222                 break;
 223
 224         case ACPI_RESOURCE_TYPE_FIXED_IO:
 225                 pnpacpi_parse_allocated_ioresource(res_table,
 226                                 res->data.fixed_io.address,
 227                                 res->data.fixed_io.address_length);
 228                 break;
 229
 230         case ACPI_RESOURCE_TYPE_VENDOR:
 231                 break;
 232
 233         case ACPI_RESOURCE_TYPE_END_TAG:
 234                 break;
 235
 236         case ACPI_RESOURCE_TYPE_MEMORY24:
 237                 pnpacpi_parse_allocated_memresource(res_table,
 238                                 res->data.memory24.minimum,
 239                                 res->data.memory24.address_length);
 240                 break;
 241         case ACPI_RESOURCE_TYPE_MEMORY32:
 242                 pnpacpi_parse_allocated_memresource(res_table,
 243                                 res->data.memory32.minimum,
 244                                 res->data.memory32.address_length);
 245                 break;
 246         case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
 247                 pnpacpi_parse_allocated_memresource(res_table,
 248                                 res->data.fixed_memory32.address,
 249                                 res->data.fixed_memory32.address_length);
 250                 break;
 251         case ACPI_RESOURCE_TYPE_ADDRESS16:
 252         case ACPI_RESOURCE_TYPE_ADDRESS32:
 253         case ACPI_RESOURCE_TYPE_ADDRESS64:
 254                 pnpacpi_parse_allocated_address_space(res_table, res);
 255                 break;
 256
 257         case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
 258                 if (res->data.ext_address64.producer_consumer == ACPI_PRODUCER)
 259                         return AE_OK;
 260                 break;
 261
 262         case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
 263                 if (res->data.extended_irq.producer_consumer == ACPI_PRODUCER)
 264                         return AE_OK;
 265
 266                 for (i = 0; i < res->data.extended_irq.interrupt_count; i++) {
 267                         pnpacpi_parse_allocated_irqresource(res_table,
 268                                 res->data.extended_irq.interrupts[i],
 269                                 res->data.extended_irq.triggering,
 270                                 res->data.extended_irq.polarity,
 271                                 res->data.extended_irq.sharable);
 272                 }
 273                 break;
 274
 275         case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
 276                 break;
 277
 278         default:
 279                 pnp_warn("PnPACPI: unknown resource type %d", res->type);
 280                 return AE_ERROR;
 281         }
 282
 283         return AE_OK;
 284 }
 285
 286 acpi_status pnpacpi_parse_allocated_resource(acpi_handle handle, struct pnp_resource_table *res)
 287 {
 288         /* Blank the resource table values */
 289         pnp_init_resource_table(res);
 290
 291         return acpi_walk_resources(handle, METHOD_NAME__CRS, pnpacpi_allocated_resource, res);
 292 }
 293
 294 static void pnpacpi_parse_dma_option(struct pnp_option *option, struct acpi_resource_dma *p)
 295 {
 296         int i;
 297         struct pnp_dma * dma;
 298
 299         if (p->channel_count == 0)
 300                 return;
 301         dma = kcalloc(1, sizeof(struct pnp_dma), GFP_KERNEL);
 302         if (!dma)
 303                 return;
 304
 305         for(i = 0; i < p->channel_count; i++)
 306                 dma->map |= 1 << p->channels[i];
 307         dma->flags = 0;
 308         if (p->bus_master)
 309                 dma->flags |= IORESOURCE_DMA_MASTER;
 310         switch (p->type) {
 311         case ACPI_COMPATIBILITY:
 312                 dma->flags |= IORESOURCE_DMA_COMPATIBLE;
 313                 break;
 314         case ACPI_TYPE_A:
 315                 dma->flags |= IORESOURCE_DMA_TYPEA;
 316                 break;
 317         case ACPI_TYPE_B:
 318                 dma->flags |= IORESOURCE_DMA_TYPEB;
 319                 break;
 320         case ACPI_TYPE_F:
 321                 dma->flags |= IORESOURCE_DMA_TYPEF;
 322                 break;
 323         default:
 324                 /* Set a default value ? */
 325                 dma->flags |= IORESOURCE_DMA_COMPATIBLE;
 326                 pnp_err("Invalid DMA type");
 327         }
 328         switch (p->transfer) {
 329         case ACPI_TRANSFER_8:
 330                 dma->flags |= IORESOURCE_DMA_8BIT;
 331                 break;
 332         case ACPI_TRANSFER_8_16:
 333                 dma->flags |= IORESOURCE_DMA_8AND16BIT;
 334                 break;
 335         case ACPI_TRANSFER_16:
 336                 dma->flags |= IORESOURCE_DMA_16BIT;
 337                 break;
 338         default:
 339                 /* Set a default value ? */
 340                 dma->flags |= IORESOURCE_DMA_8AND16BIT;
 341                 pnp_err("Invalid DMA transfer type");
 342         }
 343
 344         pnp_register_dma_resource(option, dma);
 345         return;
 346 }
 347
 348
 349 static void pnpacpi_parse_irq_option(struct pnp_option *option,
 350         struct acpi_resource_irq *p)
 351 {
 352         int i;
 353         struct pnp_irq *irq;
 354
 355         if (p->interrupt_count == 0)
 356                 return;
 357         irq = kcalloc(1, sizeof(struct pnp_irq), GFP_KERNEL);
 358         if (!irq)
 359                 return;
 360
 361         for(i = 0; i < p->interrupt_count; i++)
 362                 if (p->interrupts[i])
 363                         __set_bit(p->interrupts[i], irq->map);
 364         irq->flags = irq_flags(p->triggering, p->polarity);
 365
 366         pnp_register_irq_resource(option, irq);
 367         return;
 368 }
 369
 370 static void pnpacpi_parse_ext_irq_option(struct pnp_option *option,
 371         struct acpi_resource_extended_irq *p)
 372 {
 373         int i;
 374         struct pnp_irq *irq;
 375
 376         if (p->interrupt_count == 0)
 377                 return;
 378         irq = kcalloc(1, sizeof(struct pnp_irq), GFP_KERNEL);
 379         if (!irq)
 380                 return;
 381
 382         for(i = 0; i < p->interrupt_count; i++)
 383                 if (p->interrupts[i])
 384                         __set_bit(p->interrupts[i], irq->map);
 385         irq->flags = irq_flags(p->triggering, p->polarity);
 386
 387         pnp_register_irq_resource(option, irq);
 388         return;
 389 }
 390
 391 static void
 392 pnpacpi_parse_port_option(struct pnp_option *option,
 393         struct acpi_resource_io *io)
 394 {
 395         struct pnp_port *port;
 396
 397         if (io->address_length == 0)
 398                 return;
 399         port = kcalloc(1, sizeof(struct pnp_port), GFP_KERNEL);
 400         if (!port)
 401                 return;
 402         port->min = io->minimum;
 403         port->max = io->maximum;
 404         port->align = io->alignment;
 405         port->size = io->address_length;
 406         port->flags = ACPI_DECODE_16 == io->io_decode ?
 407                 PNP_PORT_FLAG_16BITADDR : 0;
 408         pnp_register_port_resource(option, port);
 409         return;
 410 }
 411
 412 static void
 413 pnpacpi_parse_fixed_port_option(struct pnp_option *option,
 414         struct acpi_resource_fixed_io *io)
 415 {
 416         struct pnp_port *port;
 417
 418         if (io->address_length == 0)
 419                 return;
 420         port = kcalloc(1, sizeof(struct pnp_port), GFP_KERNEL);
 421         if (!port)
 422                 return;
 423         port->min = port->max = io->address;
 424         port->size = io->address_length;
 425         port->align = 0;
 426         port->flags = PNP_PORT_FLAG_FIXED;
 427         pnp_register_port_resource(option, port);
 428         return;
 429 }
 430
 431 static void
 432 pnpacpi_parse_mem24_option(struct pnp_option *option,
 433         struct acpi_resource_memory24 *p)
 434 {
 435         struct pnp_mem *mem;
 436
 437         if (p->address_length == 0)
 438                 return;
 439         mem = kcalloc(1, sizeof(struct pnp_mem), GFP_KERNEL);
 440         if (!mem)
 441                 return;
 442         mem->min = p->minimum;
 443         mem->max = p->maximum;
 444         mem->align = p->alignment;
 445         mem->size = p->address_length;
 446
 447         mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
 448                         IORESOURCE_MEM_WRITEABLE : 0;
 449
 450         pnp_register_mem_resource(option, mem);
 451         return;
 452 }
 453
 454 static void
 455 pnpacpi_parse_mem32_option(struct pnp_option *option,
 456         struct acpi_resource_memory32 *p)
 457 {
 458         struct pnp_mem *mem;
 459
 460         if (p->address_length == 0)
 461                 return;
 462         mem = kcalloc(1, sizeof(struct pnp_mem), GFP_KERNEL);
 463         if (!mem)
 464                 return;
 465         mem->min = p->minimum;
 466         mem->max = p->maximum;
 467         mem->align = p->alignment;
 468         mem->size = p->address_length;
 469
 470         mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
 471                         IORESOURCE_MEM_WRITEABLE : 0;
 472
 473         pnp_register_mem_resource(option, mem);
 474         return;
 475 }
 476
 477 static void
 478 pnpacpi_parse_fixed_mem32_option(struct pnp_option *option,
 479         struct acpi_resource_fixed_memory32 *p)
 480 {
 481         struct pnp_mem *mem;
 482
 483         if (p->address_length == 0)
 484                 return;
 485         mem = kcalloc(1, sizeof(struct pnp_mem), GFP_KERNEL);
 486         if (!mem)
 487                 return;
 488         mem->min = mem->max = p->address;
 489         mem->size = p->address_length;
 490         mem->align = 0;
 491
 492         mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
 493                         IORESOURCE_MEM_WRITEABLE : 0;
 494
 495         pnp_register_mem_resource(option, mem);
 496         return;
 497 }
 498
 499 static void
 500 pnpacpi_parse_address_option(struct pnp_option *option, struct acpi_resource *r)
 501 {
 502         struct acpi_resource_address64 addr, *p = &addr;
 503         acpi_status status;
 504         struct pnp_mem *mem;
 505         struct pnp_port *port;
 506
 507         status = acpi_resource_to_address64(r, p);
 508         if (!ACPI_SUCCESS(status)) {
 509                 pnp_warn("PnPACPI: failed to convert resource type %d", r->type);
 510                 return;
 511         }
 512
 513         if (p->address_length == 0)
 514                 return;
 515
 516         if (p->resource_type == ACPI_MEMORY_RANGE) {
 517                 mem = kcalloc(1, sizeof(struct pnp_mem), GFP_KERNEL);
 518                 if (!mem)
 519                         return;
 520                 mem->min = mem->max = p->minimum;
 521                 mem->size = p->address_length;
 522                 mem->align = 0;
 523                 mem->flags = (p->info.mem.write_protect ==
 524                     ACPI_READ_WRITE_MEMORY) ? IORESOURCE_MEM_WRITEABLE : 0;
 525                 pnp_register_mem_resource(option, mem);
 526         } else if (p->resource_type == ACPI_IO_RANGE) {
 527                 port = kcalloc(1, sizeof(struct pnp_port), GFP_KERNEL);
 528                 if (!port)
 529                         return;
 530                 port->min = port->max = p->minimum;
 531                 port->size = p->address_length;
 532                 port->align = 0;
 533                 port->flags = PNP_PORT_FLAG_FIXED;
 534                 pnp_register_port_resource(option, port);
 535         }
 536 }
 537
 538 struct acpipnp_parse_option_s {
 539         struct pnp_option *option;
 540         struct pnp_option *option_independent;
 541         struct pnp_dev *dev;
 542 };
 543
 544 static acpi_status pnpacpi_option_resource(struct acpi_resource *res,
 545         void *data)
 546 {
 547         int priority = 0;
 548         struct acpipnp_parse_option_s *parse_data = (struct acpipnp_parse_option_s *)data;
 549         struct pnp_dev *dev = parse_data->dev;
 550         struct pnp_option *option = parse_data->option;
 551
 552         switch (res->type) {
 553                 case ACPI_RESOURCE_TYPE_IRQ:
 554                         pnpacpi_parse_irq_option(option, &res->data.irq);
 555                         break;
 556
 557                 case ACPI_RESOURCE_TYPE_DMA:
 558                         pnpacpi_parse_dma_option(option, &res->data.dma);
 559                         break;
 560
 561                 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
 562                         switch (res->data.start_dpf.compatibility_priority) {
 563                                 case ACPI_GOOD_CONFIGURATION:
 564                                         priority = PNP_RES_PRIORITY_PREFERRED;
 565                                         break;
 566
 567                                 case ACPI_ACCEPTABLE_CONFIGURATION:
 568                                         priority = PNP_RES_PRIORITY_ACCEPTABLE;
 569                                         break;
 570
 571                                 case ACPI_SUB_OPTIMAL_CONFIGURATION:
 572                                         priority = PNP_RES_PRIORITY_FUNCTIONAL;
 573                                         break;
 574                                 default:
 575                                         priority = PNP_RES_PRIORITY_INVALID;
 576                                         break;
 577                         }
 578                         /* TBD: Considering performace/robustness bits */
 579                         option = pnp_register_dependent_option(dev, priority);
 580                         if (!option)
 581                                 return AE_ERROR;
 582                         parse_data->option = option;
 583                         break;
 584
 585                 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
 586                         /*only one EndDependentFn is allowed*/
 587                         if (!parse_data->option_independent) {
 588                                 pnp_warn("PnPACPI: more than one EndDependentFn");
 589                                 return AE_ERROR;
 590                         }
 591                         parse_data->option = parse_data->option_independent;
 592                         parse_data->option_independent = NULL;
 593                         break;
 594
 595                 case ACPI_RESOURCE_TYPE_IO:
 596                         pnpacpi_parse_port_option(option, &res->data.io);
 597                         break;
 598
 599                 case ACPI_RESOURCE_TYPE_FIXED_IO:
 600                         pnpacpi_parse_fixed_port_option(option,
 601                                 &res->data.fixed_io);
 602                         break;
 603
 604                 case ACPI_RESOURCE_TYPE_VENDOR:
 605                 case ACPI_RESOURCE_TYPE_END_TAG:
 606                         break;
 607
 608                 case ACPI_RESOURCE_TYPE_MEMORY24:
 609                         pnpacpi_parse_mem24_option(option, &res->data.memory24);
 610                         break;
 611
 612                 case ACPI_RESOURCE_TYPE_MEMORY32:
 613                         pnpacpi_parse_mem32_option(option, &res->data.memory32);
 614                         break;
 615
 616                 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
 617                         pnpacpi_parse_fixed_mem32_option(option,
 618                                 &res->data.fixed_memory32);
 619                         break;
 620
 621                 case ACPI_RESOURCE_TYPE_ADDRESS16:
 622                 case ACPI_RESOURCE_TYPE_ADDRESS32:
 623                 case ACPI_RESOURCE_TYPE_ADDRESS64:
 624                         pnpacpi_parse_address_option(option, res);
 625                         break;
 626
 627                 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
 628                         break;
 629
 630                 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
 631                         pnpacpi_parse_ext_irq_option(option,
 632                                 &res->data.extended_irq);
 633                         break;
 634
 635                 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
 636                         break;
 637
 638                 default:
 639                         pnp_warn("PnPACPI: unknown resource type %d", res->type);
 640                         return AE_ERROR;
 641         }
 642
 643         return AE_OK;
 644 }
 645
 646 acpi_status pnpacpi_parse_resource_option_data(acpi_handle handle,
 647         struct pnp_dev *dev)
 648 {
 649         acpi_status status;
 650         struct acpipnp_parse_option_s parse_data;
 651
 652         parse_data.option = pnp_register_independent_option(dev);
 653         if (!parse_data.option)
 654                 return AE_ERROR;
 655         parse_data.option_independent = parse_data.option;
 656         parse_data.dev = dev;
 657         status = acpi_walk_resources(handle, METHOD_NAME__PRS,
 658                 pnpacpi_option_resource, &parse_data);
 659
 660         return status;
 661 }
 662
 663 static int pnpacpi_supported_resource(struct acpi_resource *res)
 664 {
 665         switch (res->type) {
 666         case ACPI_RESOURCE_TYPE_IRQ:
 667         case ACPI_RESOURCE_TYPE_DMA:
 668         case ACPI_RESOURCE_TYPE_IO:
 669         case ACPI_RESOURCE_TYPE_FIXED_IO:
 670         case ACPI_RESOURCE_TYPE_MEMORY24:
 671         case ACPI_RESOURCE_TYPE_MEMORY32:
 672         case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
 673         case ACPI_RESOURCE_TYPE_ADDRESS16:
 674         case ACPI_RESOURCE_TYPE_ADDRESS32:
 675         case ACPI_RESOURCE_TYPE_ADDRESS64:
 676         case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
 677                 return 1;
 678         }
 679         return 0;
 680 }
 681
 682 /*
 683  * Set resource
 684  */
 685 static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
 686         void *data)
 687 {
 688         int *res_cnt = (int *)data;
 689
 690         if (pnpacpi_supported_resource(res))
 691                 (*res_cnt)++;
 692         return AE_OK;
 693 }
 694
 695 static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
 696 {
 697         struct acpi_resource **resource = (struct acpi_resource **)data;
 698
 699         if (pnpacpi_supported_resource(res)) {
 700                 (*resource)->type = res->type;
 701                 (*resource)->length = sizeof(struct acpi_resource);
 702                 (*resource)++;
 703         }
 704
 705         return AE_OK;
 706 }
 707
 708 int pnpacpi_build_resource_template(acpi_handle handle,
 709         struct acpi_buffer *buffer)
 710 {
 711         struct acpi_resource *resource;
 712         int res_cnt = 0;
 713         acpi_status status;
 714
 715         status = acpi_walk_resources(handle, METHOD_NAME__CRS,
 716                 pnpacpi_count_resources, &res_cnt);
 717         if (ACPI_FAILURE(status)) {
 718                 pnp_err("Evaluate _CRS failed");
 719                 return -EINVAL;
 720         }
 721         if (!res_cnt)
 722                 return -EINVAL;
 723         buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
 724         buffer->pointer = kcalloc(1, buffer->length - 1, GFP_KERNEL);
 725         if (!buffer->pointer)
 726                 return -ENOMEM;
 727         pnp_dbg("Res cnt %d", res_cnt);
 728         resource = (struct acpi_resource *)buffer->pointer;
 729         status = acpi_walk_resources(handle, METHOD_NAME__CRS,
 730                 pnpacpi_type_resources, &resource);
 731         if (ACPI_FAILURE(status)) {
 732                 kfree(buffer->pointer);
 733                 pnp_err("Evaluate _CRS failed");
 734                 return -EINVAL;
 735         }
 736         /* resource will pointer the end resource now */
 737         resource->type = ACPI_RESOURCE_TYPE_END_TAG;
 738
 739         return 0;
 740 }
 741
 742 static void pnpacpi_encode_irq(struct acpi_resource *resource,
 743         struct resource *p)
 744 {
 745         int triggering, polarity;
 746
 747         decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
 748         resource->data.irq.triggering = triggering;
 749         resource->data.irq.polarity = polarity;
 750         if (triggering == ACPI_EDGE_SENSITIVE)
 751                 resource->data.irq.sharable = ACPI_EXCLUSIVE;
 752         else
 753                 resource->data.irq.sharable = ACPI_SHARED;
 754         resource->data.irq.interrupt_count = 1;
 755         resource->data.irq.interrupts[0] = p->start;
 756 }
 757
 758 static void pnpacpi_encode_ext_irq(struct acpi_resource *resource,
 759         struct resource *p)
 760 {
 761         int triggering, polarity;
 762
 763         decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
 764         resource->data.extended_irq.producer_consumer = ACPI_CONSUMER;
 765         resource->data.extended_irq.triggering = triggering;
 766         resource->data.extended_irq.polarity = polarity;
 767         if (triggering == ACPI_EDGE_SENSITIVE)
 768                 resource->data.irq.sharable = ACPI_EXCLUSIVE;
 769         else
 770                 resource->data.irq.sharable = ACPI_SHARED;
 771         resource->data.extended_irq.interrupt_count = 1;
 772         resource->data.extended_irq.interrupts[0] = p->start;
 773 }
 774
 775 static void pnpacpi_encode_dma(struct acpi_resource *resource,
 776         struct resource *p)
 777 {
 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         /* Note: pnp_assign_port will copy pnp_port->flags into p->flags */
 802         resource->data.io.io_decode = (p->flags & PNP_PORT_FLAG_16BITADDR)?
 803                 ACPI_DECODE_16 : ACPI_DECODE_10;
 804         resource->data.io.minimum = p->start;
 805         resource->data.io.maximum = p->end;
 806         resource->data.io.alignment = 0; /* Correct? */
 807         resource->data.io.address_length = p->end - p->start + 1;
 808 }
 809
 810 static void pnpacpi_encode_fixed_io(struct acpi_resource *resource,
 811         struct resource *p)
 812 {
 813         resource->data.fixed_io.address = p->start;
 814         resource->data.fixed_io.address_length = p->end - p->start + 1;
 815 }
 816
 817 static void pnpacpi_encode_mem24(struct acpi_resource *resource,
 818         struct resource *p)
 819 {
 820         /* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */
 821         resource->data.memory24.write_protect =
 822                 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
 823                 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
 824         resource->data.memory24.minimum = p->start;
 825         resource->data.memory24.maximum = p->end;
 826         resource->data.memory24.alignment = 0;
 827         resource->data.memory24.address_length = p->end - p->start + 1;
 828 }
 829
 830 static void pnpacpi_encode_mem32(struct acpi_resource *resource,
 831         struct resource *p)
 832 {
 833         resource->data.memory32.write_protect =
 834                 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
 835                 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
 836         resource->data.memory32.minimum = p->start;
 837         resource->data.memory32.maximum = p->end;
 838         resource->data.memory32.alignment = 0;
 839         resource->data.memory32.address_length = p->end - p->start + 1;
 840 }
 841
 842 static void pnpacpi_encode_fixed_mem32(struct acpi_resource *resource,
 843         struct resource *p)
 844 {
 845         resource->data.fixed_memory32.write_protect =
 846                 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
 847                 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
 848         resource->data.fixed_memory32.address = p->start;
 849         resource->data.fixed_memory32.address_length = p->end - p->start + 1;
 850 }
 851
 852 int pnpacpi_encode_resources(struct pnp_resource_table *res_table,
 853         struct acpi_buffer *buffer)
 854 {
 855         int i = 0;
 856         /* pnpacpi_build_resource_template allocates extra mem */
 857         int res_cnt = (buffer->length - 1)/sizeof(struct acpi_resource) - 1;
 858         struct acpi_resource *resource = (struct acpi_resource*)buffer->pointer;
 859         int port = 0, irq = 0, dma = 0, mem = 0;
 860
 861         pnp_dbg("res cnt %d", res_cnt);
 862         while (i < res_cnt) {
 863                 switch(resource->type) {
 864                 case ACPI_RESOURCE_TYPE_IRQ:
 865                         pnp_dbg("Encode irq");
 866                         pnpacpi_encode_irq(resource,
 867                                 &res_table->irq_resource[irq]);
 868                         irq++;
 869                         break;
 870
 871                 case ACPI_RESOURCE_TYPE_DMA:
 872                         pnp_dbg("Encode dma");
 873                         pnpacpi_encode_dma(resource,
 874                                 &res_table->dma_resource[dma]);
 875                         dma++;
 876                         break;
 877                 case ACPI_RESOURCE_TYPE_IO:
 878                         pnp_dbg("Encode io");
 879                         pnpacpi_encode_io(resource,
 880                                 &res_table->port_resource[port]);
 881                         port++;
 882                         break;
 883                 case ACPI_RESOURCE_TYPE_FIXED_IO:
 884                         pnp_dbg("Encode fixed io");
 885                         pnpacpi_encode_fixed_io(resource,
 886                                 &res_table->port_resource[port]);
 887                         port++;
 888                         break;
 889                 case ACPI_RESOURCE_TYPE_MEMORY24:
 890                         pnp_dbg("Encode mem24");
 891                         pnpacpi_encode_mem24(resource,
 892                                 &res_table->mem_resource[mem]);
 893                         mem++;
 894                         break;
 895                 case ACPI_RESOURCE_TYPE_MEMORY32:
 896                         pnp_dbg("Encode mem32");
 897                         pnpacpi_encode_mem32(resource,
 898                                 &res_table->mem_resource[mem]);
 899                         mem++;
 900                         break;
 901                 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
 902                         pnp_dbg("Encode fixed mem32");
 903                         pnpacpi_encode_fixed_mem32(resource,
 904                                 &res_table->mem_resource[mem]);
 905                         mem++;
 906                         break;
 907                 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
 908                         pnp_dbg("Encode ext irq");
 909                         pnpacpi_encode_ext_irq(resource,
 910                                 &res_table->irq_resource[irq]);
 911                         irq++;
 912                         break;
 913                 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
 914                 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
 915                 case ACPI_RESOURCE_TYPE_VENDOR:
 916                 case ACPI_RESOURCE_TYPE_END_TAG:
 917                 case ACPI_RESOURCE_TYPE_ADDRESS16:
 918                 case ACPI_RESOURCE_TYPE_ADDRESS32:
 919                 case ACPI_RESOURCE_TYPE_ADDRESS64:
 920                 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
 921                 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
 922                 default: /* other type */
 923                         pnp_warn("unknown resource type %d", resource->type);
 924                         return -EINVAL;
 925                 }
 926                 resource++;
 927                 i++;
 928         }
 929         return 0;
 930 }