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  * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
   7  *      Bjorn Helgaas <bjorn.helgaas@hp.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU General Public License as published by the
  11  * Free Software Foundation; either version 2, or (at your option) any
  12  * later version.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22  */
  23 #include <linux/kernel.h>
  24 #include <linux/acpi.h>
  25 #include <linux/pci.h>
  26 #include <linux/pnp.h>
  27 #include "../base.h"
  28 #include "pnpacpi.h"
  29
  30 #ifdef CONFIG_IA64
  31 #define valid_IRQ(i) (1)
  32 #else
  33 #define valid_IRQ(i) (((i) != 0) && ((i) != 2))
  34 #endif
  35
  36 /*
  37  * Allocated Resources
  38  */
  39 static int irq_flags(int triggering, int polarity, int shareable)
  40 {
  41         int flags;
  42
  43         if (triggering == ACPI_LEVEL_SENSITIVE) {
  44                 if (polarity == ACPI_ACTIVE_LOW)
  45                         flags = IORESOURCE_IRQ_LOWLEVEL;
  46                 else
  47                         flags = IORESOURCE_IRQ_HIGHLEVEL;
  48         } else {
  49                 if (polarity == ACPI_ACTIVE_LOW)
  50                         flags = IORESOURCE_IRQ_LOWEDGE;
  51                 else
  52                         flags = IORESOURCE_IRQ_HIGHEDGE;
  53         }
  54
  55         if (shareable == ACPI_SHARED)
  56                 flags |= IORESOURCE_IRQ_SHAREABLE;
  57
  58         return flags;
  59 }
  60
  61 static void decode_irq_flags(struct pnp_dev *dev, int flags, int *triggering,
  62                              int *polarity, int *shareable)
  63 {
  64         switch (flags & (IORESOURCE_IRQ_LOWLEVEL | IORESOURCE_IRQ_HIGHLEVEL |
  65                          IORESOURCE_IRQ_LOWEDGE  | IORESOURCE_IRQ_HIGHEDGE)) {
  66         case IORESOURCE_IRQ_LOWLEVEL:
  67                 *triggering = ACPI_LEVEL_SENSITIVE;
  68                 *polarity = ACPI_ACTIVE_LOW;
  69                 break;
  70         case IORESOURCE_IRQ_HIGHLEVEL:
  71                 *triggering = ACPI_LEVEL_SENSITIVE;
  72                 *polarity = ACPI_ACTIVE_HIGH;
  73                 break;
  74         case IORESOURCE_IRQ_LOWEDGE:
  75                 *triggering = ACPI_EDGE_SENSITIVE;
  76                 *polarity = ACPI_ACTIVE_LOW;
  77                 break;
  78         case IORESOURCE_IRQ_HIGHEDGE:
  79                 *triggering = ACPI_EDGE_SENSITIVE;
  80                 *polarity = ACPI_ACTIVE_HIGH;
  81                 break;
  82         default:
  83                 dev_err(&dev->dev, "can't encode invalid IRQ mode %#x\n",
  84                         flags);
  85                 *triggering = ACPI_EDGE_SENSITIVE;
  86                 *polarity = ACPI_ACTIVE_HIGH;
  87                 break;
  88         }
  89
  90         if (flags & IORESOURCE_IRQ_SHAREABLE)
  91                 *shareable = ACPI_SHARED;
  92         else
  93                 *shareable = ACPI_EXCLUSIVE;
  94 }
  95
  96 static void pnpacpi_parse_allocated_irqresource(struct pnp_dev *dev,
  97                                                 u32 gsi, int triggering,
  98                                                 int polarity, int shareable)
  99 {
 100         int irq, flags;
 101         int p, t;
 102
 103         if (!valid_IRQ(gsi)) {
 104                 pnp_add_irq_resource(dev, gsi, IORESOURCE_DISABLED);
 105                 return;
 106         }
 107
 108         /*
 109          * in IO-APIC mode, use overrided attribute. Two reasons:
 110          * 1. BIOS bug in DSDT
 111          * 2. BIOS uses IO-APIC mode Interrupt Source Override
 112          */
 113         if (!acpi_get_override_irq(gsi, &t, &p)) {
 114                 t = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
 115                 p = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
 116
 117                 if (triggering != t || polarity != p) {
 118                         dev_warn(&dev->dev, "IRQ %d override to %s, %s\n",
 119                                 gsi, t ? "edge":"level", p ? "low":"high");
 120                         triggering = t;
 121                         polarity = p;
 122                 }
 123         }
 124
 125         flags = irq_flags(triggering, polarity, shareable);
 126         irq = acpi_register_gsi(&dev->dev, gsi, triggering, polarity);
 127         if (irq >= 0)
 128                 pcibios_penalize_isa_irq(irq, 1);
 129         else
 130                 flags |= IORESOURCE_DISABLED;
 131
 132         pnp_add_irq_resource(dev, irq, flags);
 133 }
 134
 135 static int dma_flags(struct pnp_dev *dev, int type, int bus_master,
 136                      int transfer)
 137 {
 138         int flags = 0;
 139
 140         if (bus_master)
 141                 flags |= IORESOURCE_DMA_MASTER;
 142         switch (type) {
 143         case ACPI_COMPATIBILITY:
 144                 flags |= IORESOURCE_DMA_COMPATIBLE;
 145                 break;
 146         case ACPI_TYPE_A:
 147                 flags |= IORESOURCE_DMA_TYPEA;
 148                 break;
 149         case ACPI_TYPE_B:
 150                 flags |= IORESOURCE_DMA_TYPEB;
 151                 break;
 152         case ACPI_TYPE_F:
 153                 flags |= IORESOURCE_DMA_TYPEF;
 154                 break;
 155         default:
 156                 /* Set a default value ? */
 157                 flags |= IORESOURCE_DMA_COMPATIBLE;
 158                 dev_err(&dev->dev, "invalid DMA type %d\n", type);
 159         }
 160         switch (transfer) {
 161         case ACPI_TRANSFER_8:
 162                 flags |= IORESOURCE_DMA_8BIT;
 163                 break;
 164         case ACPI_TRANSFER_8_16:
 165                 flags |= IORESOURCE_DMA_8AND16BIT;
 166                 break;
 167         case ACPI_TRANSFER_16:
 168                 flags |= IORESOURCE_DMA_16BIT;
 169                 break;
 170         default:
 171                 /* Set a default value ? */
 172                 flags |= IORESOURCE_DMA_8AND16BIT;
 173                 dev_err(&dev->dev, "invalid DMA transfer type %d\n", transfer);
 174         }
 175
 176         return flags;
 177 }
 178
 179 static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, u64 start,
 180                                                u64 len, int io_decode,
 181                                                int window)
 182 {
 183         int flags = 0;
 184         u64 end = start + len - 1;
 185
 186         if (io_decode == ACPI_DECODE_16)
 187                 flags |= IORESOURCE_IO_16BIT_ADDR;
 188         if (len == 0 || end >= 0x10003)
 189                 flags |= IORESOURCE_DISABLED;
 190         if (window)
 191                 flags |= IORESOURCE_WINDOW;
 192
 193         pnp_add_io_resource(dev, start, end, flags);
 194 }
 195
 196 /*
 197  * Device CSRs that do not appear in PCI config space should be described
 198  * via ACPI.  This would normally be done with Address Space Descriptors
 199  * marked as "consumer-only," but old versions of Windows and Linux ignore
 200  * the producer/consumer flag, so HP invented a vendor-defined resource to
 201  * describe the location and size of CSR space.
 202  */
 203 static struct acpi_vendor_uuid hp_ccsr_uuid = {
 204         .subtype = 2,
 205         .data = { 0xf9, 0xad, 0xe9, 0x69, 0x4f, 0x92, 0x5f, 0xab, 0xf6, 0x4a,
 206             0x24, 0xd2, 0x01, 0x37, 0x0e, 0xad },
 207 };
 208
 209 static int vendor_resource_matches(struct pnp_dev *dev,
 210                                    struct acpi_resource_vendor_typed *vendor,
 211                                    struct acpi_vendor_uuid *match,
 212                                    int expected_len)
 213 {
 214         int uuid_len = sizeof(vendor->uuid);
 215         u8 uuid_subtype = vendor->uuid_subtype;
 216         u8 *uuid = vendor->uuid;
 217         int actual_len;
 218
 219         /* byte_length includes uuid_subtype and uuid */
 220         actual_len = vendor->byte_length - uuid_len - 1;
 221
 222         if (uuid_subtype == match->subtype &&
 223             uuid_len == sizeof(match->data) &&
 224             memcmp(uuid, match->data, uuid_len) == 0) {
 225                 if (expected_len && expected_len != actual_len) {
 226                         dev_err(&dev->dev, "wrong vendor descriptor size; "
 227                                 "expected %d, found %d bytes\n",
 228                                 expected_len, actual_len);
 229                         return 0;
 230                 }
 231
 232                 return 1;
 233         }
 234
 235         return 0;
 236 }
 237
 238 static void pnpacpi_parse_allocated_vendor(struct pnp_dev *dev,
 239                                     struct acpi_resource_vendor_typed *vendor)
 240 {
 241         if (vendor_resource_matches(dev, vendor, &hp_ccsr_uuid, 16)) {
 242                 u64 start, length;
 243
 244                 memcpy(&start, vendor->byte_data, sizeof(start));
 245                 memcpy(&length, vendor->byte_data + 8, sizeof(length));
 246
 247                 pnp_add_mem_resource(dev, start, start + length - 1, 0);
 248         }
 249 }
 250
 251 static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev,
 252                                                 u64 start, u64 len,
 253                                                 int write_protect, int window)
 254 {
 255         int flags = 0;
 256         u64 end = start + len - 1;
 257
 258         if (len == 0)
 259                 flags |= IORESOURCE_DISABLED;
 260         if (write_protect == ACPI_READ_WRITE_MEMORY)
 261                 flags |= IORESOURCE_MEM_WRITEABLE;
 262         if (window)
 263                 flags |= IORESOURCE_WINDOW;
 264
 265         pnp_add_mem_resource(dev, start, end, flags);
 266 }
 267
 268 static void pnpacpi_parse_allocated_busresource(struct pnp_dev *dev,
 269                                                 u64 start, u64 len)
 270 {
 271         u64 end = start + len - 1;
 272
 273         pnp_add_bus_resource(dev, start, end);
 274 }
 275
 276 static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,
 277                                                   struct acpi_resource *res)
 278 {
 279         struct acpi_resource_address64 addr, *p = &addr;
 280         acpi_status status;
 281         int window;
 282
 283         status = acpi_resource_to_address64(res, p);
 284         if (!ACPI_SUCCESS(status)) {
 285                 dev_warn(&dev->dev, "failed to convert resource type %d\n",
 286                          res->type);
 287                 return;
 288         }
 289
 290         window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
 291
 292         if (p->resource_type == ACPI_MEMORY_RANGE)
 293                 pnpacpi_parse_allocated_memresource(dev,
 294                         p->minimum, p->address_length,
 295                         p->info.mem.write_protect, window);
 296         else if (p->resource_type == ACPI_IO_RANGE)
 297                 pnpacpi_parse_allocated_ioresource(dev,
 298                         p->minimum, p->address_length,
 299                         p->granularity == 0xfff ? ACPI_DECODE_10 :
 300                                 ACPI_DECODE_16, window);
 301         else if (p->resource_type == ACPI_BUS_NUMBER_RANGE)
 302                 pnpacpi_parse_allocated_busresource(dev, p->minimum,
 303                                                     p->address_length);
 304 }
 305
 306 static void pnpacpi_parse_allocated_ext_address_space(struct pnp_dev *dev,
 307                                                       struct acpi_resource *res)
 308 {
 309         struct acpi_resource_extended_address64 *p = &res->data.ext_address64;
 310         int window;
 311
 312         window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
 313
 314         if (p->resource_type == ACPI_MEMORY_RANGE)
 315                 pnpacpi_parse_allocated_memresource(dev,
 316                         p->minimum, p->address_length,
 317                         p->info.mem.write_protect, window);
 318         else if (p->resource_type == ACPI_IO_RANGE)
 319                 pnpacpi_parse_allocated_ioresource(dev,
 320                         p->minimum, p->address_length,
 321                         p->granularity == 0xfff ? ACPI_DECODE_10 :
 322                                 ACPI_DECODE_16, window);
 323         else if (p->resource_type == ACPI_BUS_NUMBER_RANGE)
 324                 pnpacpi_parse_allocated_busresource(dev, p->minimum,
 325                                                     p->address_length);
 326 }
 327
 328 static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
 329                                               void *data)
 330 {
 331         struct pnp_dev *dev = data;
 332         struct acpi_resource_irq *irq;
 333         struct acpi_resource_dma *dma;
 334         struct acpi_resource_io *io;
 335         struct acpi_resource_fixed_io *fixed_io;
 336         struct acpi_resource_vendor_typed *vendor_typed;
 337         struct acpi_resource_memory24 *memory24;
 338         struct acpi_resource_memory32 *memory32;
 339         struct acpi_resource_fixed_memory32 *fixed_memory32;
 340         struct acpi_resource_extended_irq *extended_irq;
 341         int i, flags;
 342
 343         switch (res->type) {
 344         case ACPI_RESOURCE_TYPE_IRQ:
 345                 /*
 346                  * Per spec, only one interrupt per descriptor is allowed in
 347                  * _CRS, but some firmware violates this, so parse them all.
 348                  */
 349                 irq = &res->data.irq;
 350                 if (irq->interrupt_count == 0)
 351                         pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED);
 352                 else {
 353                         for (i = 0; i < irq->interrupt_count; i++) {
 354                                 pnpacpi_parse_allocated_irqresource(dev,
 355                                         irq->interrupts[i],
 356                                         irq->triggering,
 357                                         irq->polarity,
 358                                     irq->sharable);
 359                         }
 360
 361                         /*
 362                          * The IRQ encoder puts a single interrupt in each
 363                          * descriptor, so if a _CRS descriptor has more than
 364                          * one interrupt, we won't be able to re-encode it.
 365                          */
 366                         if (pnp_can_write(dev) && irq->interrupt_count > 1) {
 367                                 dev_warn(&dev->dev, "multiple interrupts in "
 368                                          "_CRS descriptor; configuration can't "
 369                                          "be changed\n");
 370                                 dev->capabilities &= ~PNP_WRITE;
 371                         }
 372                 }
 373                 break;
 374
 375         case ACPI_RESOURCE_TYPE_DMA:
 376                 dma = &res->data.dma;
 377                 if (dma->channel_count > 0 && dma->channels[0] != (u8) -1)
 378                         flags = dma_flags(dev, dma->type, dma->bus_master,
 379                                           dma->transfer);
 380                 else
 381                         flags = IORESOURCE_DISABLED;
 382                 pnp_add_dma_resource(dev, dma->channels[0], flags);
 383                 break;
 384
 385         case ACPI_RESOURCE_TYPE_IO:
 386                 io = &res->data.io;
 387                 pnpacpi_parse_allocated_ioresource(dev,
 388                         io->minimum,
 389                         io->address_length,
 390                         io->io_decode, 0);
 391                 break;
 392
 393         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
 394         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
 395                 break;
 396
 397         case ACPI_RESOURCE_TYPE_FIXED_IO:
 398                 fixed_io = &res->data.fixed_io;
 399                 pnpacpi_parse_allocated_ioresource(dev,
 400                         fixed_io->address,
 401                         fixed_io->address_length,
 402                         ACPI_DECODE_10, 0);
 403                 break;
 404
 405         case ACPI_RESOURCE_TYPE_VENDOR:
 406                 vendor_typed = &res->data.vendor_typed;
 407                 pnpacpi_parse_allocated_vendor(dev, vendor_typed);
 408                 break;
 409
 410         case ACPI_RESOURCE_TYPE_END_TAG:
 411                 break;
 412
 413         case ACPI_RESOURCE_TYPE_MEMORY24:
 414                 memory24 = &res->data.memory24;
 415                 pnpacpi_parse_allocated_memresource(dev,
 416                         memory24->minimum,
 417                         memory24->address_length,
 418                         memory24->write_protect, 0);
 419                 break;
 420         case ACPI_RESOURCE_TYPE_MEMORY32:
 421                 memory32 = &res->data.memory32;
 422                 pnpacpi_parse_allocated_memresource(dev,
 423                         memory32->minimum,
 424                         memory32->address_length,
 425                         memory32->write_protect, 0);
 426                 break;
 427         case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
 428                 fixed_memory32 = &res->data.fixed_memory32;
 429                 pnpacpi_parse_allocated_memresource(dev,
 430                         fixed_memory32->address,
 431                         fixed_memory32->address_length,
 432                         fixed_memory32->write_protect, 0);
 433                 break;
 434         case ACPI_RESOURCE_TYPE_ADDRESS16:
 435         case ACPI_RESOURCE_TYPE_ADDRESS32:
 436         case ACPI_RESOURCE_TYPE_ADDRESS64:
 437                 pnpacpi_parse_allocated_address_space(dev, res);
 438                 break;
 439
 440         case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
 441                 pnpacpi_parse_allocated_ext_address_space(dev, res);
 442                 break;
 443
 444         case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
 445                 extended_irq = &res->data.extended_irq;
 446
 447                 if (extended_irq->interrupt_count == 0)
 448                         pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED);
 449                 else {
 450                         for (i = 0; i < extended_irq->interrupt_count; i++) {
 451                                 pnpacpi_parse_allocated_irqresource(dev,
 452                                         extended_irq->interrupts[i],
 453                                         extended_irq->triggering,
 454                                         extended_irq->polarity,
 455                                         extended_irq->sharable);
 456                         }
 457
 458                         /*
 459                          * The IRQ encoder puts a single interrupt in each
 460                          * descriptor, so if a _CRS descriptor has more than
 461                          * one interrupt, we won't be able to re-encode it.
 462                          */
 463                         if (pnp_can_write(dev) &&
 464                             extended_irq->interrupt_count > 1) {
 465                                 dev_warn(&dev->dev, "multiple interrupts in "
 466                                          "_CRS descriptor; configuration can't "
 467                                          "be changed\n");
 468                                 dev->capabilities &= ~PNP_WRITE;
 469                         }
 470                 }
 471                 break;
 472
 473         case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
 474                 break;
 475
 476         default:
 477                 dev_warn(&dev->dev, "unknown resource type %d in _CRS\n",
 478                          res->type);
 479                 return AE_ERROR;
 480         }
 481
 482         return AE_OK;
 483 }
 484
 485 int pnpacpi_parse_allocated_resource(struct pnp_dev *dev)
 486 {
 487         struct acpi_device *acpi_dev = dev->data;
 488         acpi_handle handle = acpi_dev->handle;
 489         acpi_status status;
 490
 491         pnp_dbg(&dev->dev, "parse allocated resources\n");
 492
 493         pnp_init_resources(dev);
 494
 495         status = acpi_walk_resources(handle, METHOD_NAME__CRS,
 496                                      pnpacpi_allocated_resource, dev);
 497
 498         if (ACPI_FAILURE(status)) {
 499                 if (status != AE_NOT_FOUND)
 500                         dev_err(&dev->dev, "can't evaluate _CRS: %d", status);
 501                 return -EPERM;
 502         }
 503         return 0;
 504 }
 505
 506 static __init void pnpacpi_parse_dma_option(struct pnp_dev *dev,
 507                                             unsigned int option_flags,
 508                                             struct acpi_resource_dma *p)
 509 {
 510         int i;
 511         unsigned char map = 0, flags;
 512
 513         if (p->channel_count == 0)
 514                 return;
 515
 516         for (i = 0; i < p->channel_count; i++)
 517                 map |= 1 << p->channels[i];
 518
 519         flags = dma_flags(dev, p->type, p->bus_master, p->transfer);
 520         pnp_register_dma_resource(dev, option_flags, map, flags);
 521 }
 522
 523 static __init void pnpacpi_parse_irq_option(struct pnp_dev *dev,
 524                                             unsigned int option_flags,
 525                                             struct acpi_resource_irq *p)
 526 {
 527         int i;
 528         pnp_irq_mask_t map;
 529         unsigned char flags;
 530
 531         if (p->interrupt_count == 0)
 532                 return;
 533
 534         bitmap_zero(map.bits, PNP_IRQ_NR);
 535         for (i = 0; i < p->interrupt_count; i++)
 536                 if (p->interrupts[i])
 537                         __set_bit(p->interrupts[i], map.bits);
 538
 539         flags = irq_flags(p->triggering, p->polarity, p->sharable);
 540         pnp_register_irq_resource(dev, option_flags, &map, flags);
 541 }
 542
 543 static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev,
 544                                         unsigned int option_flags,
 545                                         struct acpi_resource_extended_irq *p)
 546 {
 547         int i;
 548         pnp_irq_mask_t map;
 549         unsigned char flags;
 550
 551         if (p->interrupt_count == 0)
 552                 return;
 553
 554         bitmap_zero(map.bits, PNP_IRQ_NR);
 555         for (i = 0; i < p->interrupt_count; i++) {
 556                 if (p->interrupts[i]) {
 557                         if (p->interrupts[i] < PNP_IRQ_NR)
 558                                 __set_bit(p->interrupts[i], map.bits);
 559                         else
 560                                 dev_err(&dev->dev, "ignoring IRQ %d option "
 561                                         "(too large for %d entry bitmap)\n",
 562                                         p->interrupts[i], PNP_IRQ_NR);
 563                 }
 564         }
 565
 566         flags = irq_flags(p->triggering, p->polarity, p->sharable);
 567         pnp_register_irq_resource(dev, option_flags, &map, flags);
 568 }
 569
 570 static __init void pnpacpi_parse_port_option(struct pnp_dev *dev,
 571                                              unsigned int option_flags,
 572                                              struct acpi_resource_io *io)
 573 {
 574         unsigned char flags = 0;
 575
 576         if (io->address_length == 0)
 577                 return;
 578
 579         if (io->io_decode == ACPI_DECODE_16)
 580                 flags = IORESOURCE_IO_16BIT_ADDR;
 581         pnp_register_port_resource(dev, option_flags, io->minimum, io->maximum,
 582                                    io->alignment, io->address_length, flags);
 583 }
 584
 585 static __init void pnpacpi_parse_fixed_port_option(struct pnp_dev *dev,
 586                                         unsigned int option_flags,
 587                                         struct acpi_resource_fixed_io *io)
 588 {
 589         if (io->address_length == 0)
 590                 return;
 591
 592         pnp_register_port_resource(dev, option_flags, io->address, io->address,
 593                                    0, io->address_length, IORESOURCE_IO_FIXED);
 594 }
 595
 596 static __init void pnpacpi_parse_mem24_option(struct pnp_dev *dev,
 597                                               unsigned int option_flags,
 598                                               struct acpi_resource_memory24 *p)
 599 {
 600         unsigned char flags = 0;
 601
 602         if (p->address_length == 0)
 603                 return;
 604
 605         if (p->write_protect == ACPI_READ_WRITE_MEMORY)
 606                 flags = IORESOURCE_MEM_WRITEABLE;
 607         pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
 608                                   p->alignment, p->address_length, flags);
 609 }
 610
 611 static __init void pnpacpi_parse_mem32_option(struct pnp_dev *dev,
 612                                               unsigned int option_flags,
 613                                               struct acpi_resource_memory32 *p)
 614 {
 615         unsigned char flags = 0;
 616
 617         if (p->address_length == 0)
 618                 return;
 619
 620         if (p->write_protect == ACPI_READ_WRITE_MEMORY)
 621                 flags = IORESOURCE_MEM_WRITEABLE;
 622         pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
 623                                   p->alignment, p->address_length, flags);
 624 }
 625
 626 static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_dev *dev,
 627                                         unsigned int option_flags,
 628                                         struct acpi_resource_fixed_memory32 *p)
 629 {
 630         unsigned char flags = 0;
 631
 632         if (p->address_length == 0)
 633                 return;
 634
 635         if (p->write_protect == ACPI_READ_WRITE_MEMORY)
 636                 flags = IORESOURCE_MEM_WRITEABLE;
 637         pnp_register_mem_resource(dev, option_flags, p->address, p->address,
 638                                   0, p->address_length, flags);
 639 }
 640
 641 static __init void pnpacpi_parse_address_option(struct pnp_dev *dev,
 642                                                 unsigned int option_flags,
 643                                                 struct acpi_resource *r)
 644 {
 645         struct acpi_resource_address64 addr, *p = &addr;
 646         acpi_status status;
 647         unsigned char flags = 0;
 648
 649         status = acpi_resource_to_address64(r, p);
 650         if (ACPI_FAILURE(status)) {
 651                 dev_warn(&dev->dev, "can't convert resource type %d\n",
 652                          r->type);
 653                 return;
 654         }
 655
 656         if (p->address_length == 0)
 657                 return;
 658
 659         if (p->resource_type == ACPI_MEMORY_RANGE) {
 660                 if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY)
 661                         flags = IORESOURCE_MEM_WRITEABLE;
 662                 pnp_register_mem_resource(dev, option_flags, p->minimum,
 663                                           p->minimum, 0, p->address_length,
 664                                           flags);
 665         } else if (p->resource_type == ACPI_IO_RANGE)
 666                 pnp_register_port_resource(dev, option_flags, p->minimum,
 667                                            p->minimum, 0, p->address_length,
 668                                            IORESOURCE_IO_FIXED);
 669 }
 670
 671 static __init void pnpacpi_parse_ext_address_option(struct pnp_dev *dev,
 672                                                     unsigned int option_flags,
 673                                                     struct acpi_resource *r)
 674 {
 675         struct acpi_resource_extended_address64 *p = &r->data.ext_address64;
 676         unsigned char flags = 0;
 677
 678         if (p->address_length == 0)
 679                 return;
 680
 681         if (p->resource_type == ACPI_MEMORY_RANGE) {
 682                 if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY)
 683                         flags = IORESOURCE_MEM_WRITEABLE;
 684                 pnp_register_mem_resource(dev, option_flags, p->minimum,
 685                                           p->minimum, 0, p->address_length,
 686                                           flags);
 687         } else if (p->resource_type == ACPI_IO_RANGE)
 688                 pnp_register_port_resource(dev, option_flags, p->minimum,
 689                                            p->minimum, 0, p->address_length,
 690                                            IORESOURCE_IO_FIXED);
 691 }
 692
 693 struct acpipnp_parse_option_s {
 694         struct pnp_dev *dev;
 695         unsigned int option_flags;
 696 };
 697
 698 static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
 699                                                   void *data)
 700 {
 701         int priority;
 702         struct acpipnp_parse_option_s *parse_data = data;
 703         struct pnp_dev *dev = parse_data->dev;
 704         unsigned int option_flags = parse_data->option_flags;
 705
 706         switch (res->type) {
 707         case ACPI_RESOURCE_TYPE_IRQ:
 708                 pnpacpi_parse_irq_option(dev, option_flags, &res->data.irq);
 709                 break;
 710
 711         case ACPI_RESOURCE_TYPE_DMA:
 712                 pnpacpi_parse_dma_option(dev, option_flags, &res->data.dma);
 713                 break;
 714
 715         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
 716                 switch (res->data.start_dpf.compatibility_priority) {
 717                 case ACPI_GOOD_CONFIGURATION:
 718                         priority = PNP_RES_PRIORITY_PREFERRED;
 719                         break;
 720
 721                 case ACPI_ACCEPTABLE_CONFIGURATION:
 722                         priority = PNP_RES_PRIORITY_ACCEPTABLE;
 723                         break;
 724
 725                 case ACPI_SUB_OPTIMAL_CONFIGURATION:
 726                         priority = PNP_RES_PRIORITY_FUNCTIONAL;
 727                         break;
 728                 default:
 729                         priority = PNP_RES_PRIORITY_INVALID;
 730                         break;
 731                 }
 732                 parse_data->option_flags = pnp_new_dependent_set(dev, priority);
 733                 break;
 734
 735         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
 736                 parse_data->option_flags = 0;
 737                 break;
 738
 739         case ACPI_RESOURCE_TYPE_IO:
 740                 pnpacpi_parse_port_option(dev, option_flags, &res->data.io);
 741                 break;
 742
 743         case ACPI_RESOURCE_TYPE_FIXED_IO:
 744                 pnpacpi_parse_fixed_port_option(dev, option_flags,
 745                                                 &res->data.fixed_io);
 746                 break;
 747
 748         case ACPI_RESOURCE_TYPE_VENDOR:
 749         case ACPI_RESOURCE_TYPE_END_TAG:
 750                 break;
 751
 752         case ACPI_RESOURCE_TYPE_MEMORY24:
 753                 pnpacpi_parse_mem24_option(dev, option_flags,
 754                                            &res->data.memory24);
 755                 break;
 756
 757         case ACPI_RESOURCE_TYPE_MEMORY32:
 758                 pnpacpi_parse_mem32_option(dev, option_flags,
 759                                            &res->data.memory32);
 760                 break;
 761
 762         case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
 763                 pnpacpi_parse_fixed_mem32_option(dev, option_flags,
 764                                                  &res->data.fixed_memory32);
 765                 break;
 766
 767         case ACPI_RESOURCE_TYPE_ADDRESS16:
 768         case ACPI_RESOURCE_TYPE_ADDRESS32:
 769         case ACPI_RESOURCE_TYPE_ADDRESS64:
 770                 pnpacpi_parse_address_option(dev, option_flags, res);
 771                 break;
 772
 773         case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
 774                 pnpacpi_parse_ext_address_option(dev, option_flags, res);
 775                 break;
 776
 777         case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
 778                 pnpacpi_parse_ext_irq_option(dev, option_flags,
 779                                              &res->data.extended_irq);
 780                 break;
 781
 782         case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
 783                 break;
 784
 785         default:
 786                 dev_warn(&dev->dev, "unknown resource type %d in _PRS\n",
 787                          res->type);
 788                 return AE_ERROR;
 789         }
 790
 791         return AE_OK;
 792 }
 793
 794 int __init pnpacpi_parse_resource_option_data(struct pnp_dev *dev)
 795 {
 796         struct acpi_device *acpi_dev = dev->data;
 797         acpi_handle handle = acpi_dev->handle;
 798         acpi_status status;
 799         struct acpipnp_parse_option_s parse_data;
 800
 801         pnp_dbg(&dev->dev, "parse resource options\n");
 802
 803         parse_data.dev = dev;
 804         parse_data.option_flags = 0;
 805
 806         status = acpi_walk_resources(handle, METHOD_NAME__PRS,
 807                                      pnpacpi_option_resource, &parse_data);
 808
 809         if (ACPI_FAILURE(status)) {
 810                 if (status != AE_NOT_FOUND)
 811                         dev_err(&dev->dev, "can't evaluate _PRS: %d", status);
 812                 return -EPERM;
 813         }
 814         return 0;
 815 }
 816
 817 static int pnpacpi_supported_resource(struct acpi_resource *res)
 818 {
 819         switch (res->type) {
 820         case ACPI_RESOURCE_TYPE_IRQ:
 821         case ACPI_RESOURCE_TYPE_DMA:
 822         case ACPI_RESOURCE_TYPE_IO:
 823         case ACPI_RESOURCE_TYPE_FIXED_IO:
 824         case ACPI_RESOURCE_TYPE_MEMORY24:
 825         case ACPI_RESOURCE_TYPE_MEMORY32:
 826         case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
 827         case ACPI_RESOURCE_TYPE_ADDRESS16:
 828         case ACPI_RESOURCE_TYPE_ADDRESS32:
 829         case ACPI_RESOURCE_TYPE_ADDRESS64:
 830         case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
 831         case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
 832                 return 1;
 833         }
 834         return 0;
 835 }
 836
 837 /*
 838  * Set resource
 839  */
 840 static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
 841                                            void *data)
 842 {
 843         int *res_cnt = data;
 844
 845         if (pnpacpi_supported_resource(res))
 846                 (*res_cnt)++;
 847         return AE_OK;
 848 }
 849
 850 static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
 851 {
 852         struct acpi_resource **resource = data;
 853
 854         if (pnpacpi_supported_resource(res)) {
 855                 (*resource)->type = res->type;
 856                 (*resource)->length = sizeof(struct acpi_resource);
 857                 if (res->type == ACPI_RESOURCE_TYPE_IRQ)
 858                         (*resource)->data.irq.descriptor_length =
 859                                         res->data.irq.descriptor_length;
 860                 (*resource)++;
 861         }
 862
 863         return AE_OK;
 864 }
 865
 866 int pnpacpi_build_resource_template(struct pnp_dev *dev,
 867                                     struct acpi_buffer *buffer)
 868 {
 869         struct acpi_device *acpi_dev = dev->data;
 870         acpi_handle handle = acpi_dev->handle;
 871         struct acpi_resource *resource;
 872         int res_cnt = 0;
 873         acpi_status status;
 874
 875         status = acpi_walk_resources(handle, METHOD_NAME__CRS,
 876                                      pnpacpi_count_resources, &res_cnt);
 877         if (ACPI_FAILURE(status)) {
 878                 dev_err(&dev->dev, "can't evaluate _CRS: %d\n", status);
 879                 return -EINVAL;
 880         }
 881         if (!res_cnt)
 882                 return -EINVAL;
 883         buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
 884         buffer->pointer = kzalloc(buffer->length - 1, GFP_KERNEL);
 885         if (!buffer->pointer)
 886                 return -ENOMEM;
 887
 888         resource = (struct acpi_resource *)buffer->pointer;
 889         status = acpi_walk_resources(handle, METHOD_NAME__CRS,
 890                                      pnpacpi_type_resources, &resource);
 891         if (ACPI_FAILURE(status)) {
 892                 kfree(buffer->pointer);
 893                 dev_err(&dev->dev, "can't evaluate _CRS: %d\n", status);
 894                 return -EINVAL;
 895         }
 896         /* resource will pointer the end resource now */
 897         resource->type = ACPI_RESOURCE_TYPE_END_TAG;
 898
 899         return 0;
 900 }
 901
 902 static void pnpacpi_encode_irq(struct pnp_dev *dev,
 903                                struct acpi_resource *resource,
 904                                struct resource *p)
 905 {
 906         struct acpi_resource_irq *irq = &resource->data.irq;
 907         int triggering, polarity, shareable;
 908
 909         if (!pnp_resource_enabled(p)) {
 910                 irq->interrupt_count = 0;
 911                 pnp_dbg(&dev->dev, "  encode irq (%s)\n",
 912                         p ? "disabled" : "missing");
 913                 return;
 914         }
 915
 916         decode_irq_flags(dev, p->flags, &triggering, &polarity, &shareable);
 917         irq->triggering = triggering;
 918         irq->polarity = polarity;
 919         irq->sharable = shareable;
 920         irq->interrupt_count = 1;
 921         irq->interrupts[0] = p->start;
 922
 923         pnp_dbg(&dev->dev, "  encode irq %d %s %s %s (%d-byte descriptor)\n",
 924                 (int) p->start,
 925                 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
 926                 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
 927                 irq->sharable == ACPI_SHARED ? "shared" : "exclusive",
 928                 irq->descriptor_length);
 929 }
 930
 931 static void pnpacpi_encode_ext_irq(struct pnp_dev *dev,
 932                                    struct acpi_resource *resource,
 933                                    struct resource *p)
 934 {
 935         struct acpi_resource_extended_irq *extended_irq = &resource->data.extended_irq;
 936         int triggering, polarity, shareable;
 937
 938         if (!pnp_resource_enabled(p)) {
 939                 extended_irq->interrupt_count = 0;
 940                 pnp_dbg(&dev->dev, "  encode extended irq (%s)\n",
 941                         p ? "disabled" : "missing");
 942                 return;
 943         }
 944
 945         decode_irq_flags(dev, p->flags, &triggering, &polarity, &shareable);
 946         extended_irq->producer_consumer = ACPI_CONSUMER;
 947         extended_irq->triggering = triggering;
 948         extended_irq->polarity = polarity;
 949         extended_irq->sharable = shareable;
 950         extended_irq->interrupt_count = 1;
 951         extended_irq->interrupts[0] = p->start;
 952
 953         pnp_dbg(&dev->dev, "  encode irq %d %s %s %s\n", (int) p->start,
 954                 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
 955                 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
 956                 extended_irq->sharable == ACPI_SHARED ? "shared" : "exclusive");
 957 }
 958
 959 static void pnpacpi_encode_dma(struct pnp_dev *dev,
 960                                struct acpi_resource *resource,
 961                                struct resource *p)
 962 {
 963         struct acpi_resource_dma *dma = &resource->data.dma;
 964
 965         if (!pnp_resource_enabled(p)) {
 966                 dma->channel_count = 0;
 967                 pnp_dbg(&dev->dev, "  encode dma (%s)\n",
 968                         p ? "disabled" : "missing");
 969                 return;
 970         }
 971
 972         /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
 973         switch (p->flags & IORESOURCE_DMA_SPEED_MASK) {
 974         case IORESOURCE_DMA_TYPEA:
 975                 dma->type = ACPI_TYPE_A;
 976                 break;
 977         case IORESOURCE_DMA_TYPEB:
 978                 dma->type = ACPI_TYPE_B;
 979                 break;
 980         case IORESOURCE_DMA_TYPEF:
 981                 dma->type = ACPI_TYPE_F;
 982                 break;
 983         default:
 984                 dma->type = ACPI_COMPATIBILITY;
 985         }
 986
 987         switch (p->flags & IORESOURCE_DMA_TYPE_MASK) {
 988         case IORESOURCE_DMA_8BIT:
 989                 dma->transfer = ACPI_TRANSFER_8;
 990                 break;
 991         case IORESOURCE_DMA_8AND16BIT:
 992                 dma->transfer = ACPI_TRANSFER_8_16;
 993                 break;
 994         default:
 995                 dma->transfer = ACPI_TRANSFER_16;
 996         }
 997
 998         dma->bus_master = !!(p->flags & IORESOURCE_DMA_MASTER);
 999         dma->channel_count = 1;
1000         dma->channels[0] = p->start;
1001
1002         pnp_dbg(&dev->dev, "  encode dma %d "
1003                 "type %#x transfer %#x master %d\n",
1004                 (int) p->start, dma->type, dma->transfer, dma->bus_master);
1005 }
1006
1007 static void pnpacpi_encode_io(struct pnp_dev *dev,
1008                               struct acpi_resource *resource,
1009                               struct resource *p)
1010 {
1011         struct acpi_resource_io *io = &resource->data.io;
1012
1013         if (pnp_resource_enabled(p)) {
1014                 /* Note: pnp_assign_port copies pnp_port->flags into p->flags */
1015                 io->io_decode = (p->flags & IORESOURCE_IO_16BIT_ADDR) ?
1016                     ACPI_DECODE_16 : ACPI_DECODE_10;
1017                 io->minimum = p->start;
1018                 io->maximum = p->end;
1019                 io->alignment = 0;      /* Correct? */
1020                 io->address_length = p->end - p->start + 1;
1021         } else {
1022                 io->minimum = 0;
1023                 io->address_length = 0;
1024         }
1025
1026         pnp_dbg(&dev->dev, "  encode io %#x-%#x decode %#x\n", io->minimum,
1027                 io->minimum + io->address_length - 1, io->io_decode);
1028 }
1029
1030 static void pnpacpi_encode_fixed_io(struct pnp_dev *dev,
1031                                     struct acpi_resource *resource,
1032                                     struct resource *p)
1033 {
1034         struct acpi_resource_fixed_io *fixed_io = &resource->data.fixed_io;
1035
1036         if (pnp_resource_enabled(p)) {
1037                 fixed_io->address = p->start;
1038                 fixed_io->address_length = p->end - p->start + 1;
1039         } else {
1040                 fixed_io->address = 0;
1041                 fixed_io->address_length = 0;
1042         }
1043
1044         pnp_dbg(&dev->dev, "  encode fixed_io %#x-%#x\n", fixed_io->address,
1045                 fixed_io->address + fixed_io->address_length - 1);
1046 }
1047
1048 static void pnpacpi_encode_mem24(struct pnp_dev *dev,
1049                                  struct acpi_resource *resource,
1050                                  struct resource *p)
1051 {
1052         struct acpi_resource_memory24 *memory24 = &resource->data.memory24;
1053
1054         if (pnp_resource_enabled(p)) {
1055                 /* Note: pnp_assign_mem copies pnp_mem->flags into p->flags */
1056                 memory24->write_protect = p->flags & IORESOURCE_MEM_WRITEABLE ?
1057                     ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1058                 memory24->minimum = p->start;
1059                 memory24->maximum = p->end;
1060                 memory24->alignment = 0;
1061                 memory24->address_length = p->end - p->start + 1;
1062         } else {
1063                 memory24->minimum = 0;
1064                 memory24->address_length = 0;
1065         }
1066
1067         pnp_dbg(&dev->dev, "  encode mem24 %#x-%#x write_protect %#x\n",
1068                 memory24->minimum,
1069                 memory24->minimum + memory24->address_length - 1,
1070                 memory24->write_protect);
1071 }
1072
1073 static void pnpacpi_encode_mem32(struct pnp_dev *dev,
1074                                  struct acpi_resource *resource,
1075                                  struct resource *p)
1076 {
1077         struct acpi_resource_memory32 *memory32 = &resource->data.memory32;
1078
1079         if (pnp_resource_enabled(p)) {
1080                 memory32->write_protect = p->flags & IORESOURCE_MEM_WRITEABLE ?
1081                     ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1082                 memory32->minimum = p->start;
1083                 memory32->maximum = p->end;
1084                 memory32->alignment = 0;
1085                 memory32->address_length = p->end - p->start + 1;
1086         } else {
1087                 memory32->minimum = 0;
1088                 memory32->alignment = 0;
1089         }
1090
1091         pnp_dbg(&dev->dev, "  encode mem32 %#x-%#x write_protect %#x\n",
1092                 memory32->minimum,
1093                 memory32->minimum + memory32->address_length - 1,
1094                 memory32->write_protect);
1095 }
1096
1097 static void pnpacpi_encode_fixed_mem32(struct pnp_dev *dev,
1098                                        struct acpi_resource *resource,
1099                                        struct resource *p)
1100 {
1101         struct acpi_resource_fixed_memory32 *fixed_memory32 = &resource->data.fixed_memory32;
1102
1103         if (pnp_resource_enabled(p)) {
1104                 fixed_memory32->write_protect =
1105                     p->flags & IORESOURCE_MEM_WRITEABLE ?
1106                     ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1107                 fixed_memory32->address = p->start;
1108                 fixed_memory32->address_length = p->end - p->start + 1;
1109         } else {
1110                 fixed_memory32->address = 0;
1111                 fixed_memory32->address_length = 0;
1112         }
1113
1114         pnp_dbg(&dev->dev, "  encode fixed_mem32 %#x-%#x write_protect %#x\n",
1115                 fixed_memory32->address,
1116                 fixed_memory32->address + fixed_memory32->address_length - 1,
1117                 fixed_memory32->write_protect);
1118 }
1119
1120 int pnpacpi_encode_resources(struct pnp_dev *dev, struct acpi_buffer *buffer)
1121 {
1122         int i = 0;
1123         /* pnpacpi_build_resource_template allocates extra mem */
1124         int res_cnt = (buffer->length - 1) / sizeof(struct acpi_resource) - 1;
1125         struct acpi_resource *resource = buffer->pointer;
1126         int port = 0, irq = 0, dma = 0, mem = 0;
1127
1128         pnp_dbg(&dev->dev, "encode %d resources\n", res_cnt);
1129         while (i < res_cnt) {
1130                 switch (resource->type) {
1131                 case ACPI_RESOURCE_TYPE_IRQ:
1132                         pnpacpi_encode_irq(dev, resource,
1133                                pnp_get_resource(dev, IORESOURCE_IRQ, irq));
1134                         irq++;
1135                         break;
1136
1137                 case ACPI_RESOURCE_TYPE_DMA:
1138                         pnpacpi_encode_dma(dev, resource,
1139                                 pnp_get_resource(dev, IORESOURCE_DMA, dma));
1140                         dma++;
1141                         break;
1142                 case ACPI_RESOURCE_TYPE_IO:
1143                         pnpacpi_encode_io(dev, resource,
1144                                 pnp_get_resource(dev, IORESOURCE_IO, port));
1145                         port++;
1146                         break;
1147                 case ACPI_RESOURCE_TYPE_FIXED_IO:
1148                         pnpacpi_encode_fixed_io(dev, resource,
1149                                 pnp_get_resource(dev, IORESOURCE_IO, port));
1150                         port++;
1151                         break;
1152                 case ACPI_RESOURCE_TYPE_MEMORY24:
1153                         pnpacpi_encode_mem24(dev, resource,
1154                                 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1155                         mem++;
1156                         break;
1157                 case ACPI_RESOURCE_TYPE_MEMORY32:
1158                         pnpacpi_encode_mem32(dev, resource,
1159                                 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1160                         mem++;
1161                         break;
1162                 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
1163                         pnpacpi_encode_fixed_mem32(dev, resource,
1164                                 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1165                         mem++;
1166                         break;
1167                 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
1168                         pnpacpi_encode_ext_irq(dev, resource,
1169                                 pnp_get_resource(dev, IORESOURCE_IRQ, irq));
1170                         irq++;
1171                         break;
1172                 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
1173                 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
1174                 case ACPI_RESOURCE_TYPE_VENDOR:
1175                 case ACPI_RESOURCE_TYPE_END_TAG:
1176                 case ACPI_RESOURCE_TYPE_ADDRESS16:
1177                 case ACPI_RESOURCE_TYPE_ADDRESS32:
1178                 case ACPI_RESOURCE_TYPE_ADDRESS64:
1179                 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
1180                 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
1181                 default:        /* other type */
1182                         dev_warn(&dev->dev, "can't encode unknown resource "
1183                                  "type %d\n", resource->type);
1184                         return -EINVAL;
1185                 }
1186                 resource++;
1187                 i++;
1188         }
1189         return 0;
1190 }