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