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 u64 addr_space_length(struct pnp_dev *dev, u64 min, u64 max, u64 len)
 277 {
 278         u64 max_len;
 279
 280         max_len = max - min + 1;
 281         if (len <= max_len)
 282                 return len;
 283
 284         /*
 285          * Per 6.4.3.5, _LEN cannot exceed _MAX - _MIN + 1, but some BIOSes
 286          * don't do this correctly, e.g.,
 287          * https://bugzilla.kernel.org/show_bug.cgi?id=15480
 288          */
 289         dev_info(&dev->dev,
 290                  "resource length %#llx doesn't fit in %#llx-%#llx, trimming\n",
 291                  (unsigned long long) len, (unsigned long long) min,
 292                  (unsigned long long) max);
 293         return max_len;
 294 }
 295
 296 static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,
 297                                                   struct acpi_resource *res)
 298 {
 299         struct acpi_resource_address64 addr, *p = &addr;
 300         acpi_status status;
 301         int window;
 302         u64 len;
 303
 304         status = acpi_resource_to_address64(res, p);
 305         if (!ACPI_SUCCESS(status)) {
 306                 dev_warn(&dev->dev, "failed to convert resource type %d\n",
 307                          res->type);
 308                 return;
 309         }
 310
 311         len = addr_space_length(dev, p->minimum, p->maximum, p->address_length);
 312         window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
 313
 314         if (p->resource_type == ACPI_MEMORY_RANGE)
 315                 pnpacpi_parse_allocated_memresource(dev, p->minimum, len,
 316                         p->info.mem.write_protect, window);
 317         else if (p->resource_type == ACPI_IO_RANGE)
 318                 pnpacpi_parse_allocated_ioresource(dev, p->minimum, len,
 319                         p->granularity == 0xfff ? ACPI_DECODE_10 :
 320                                 ACPI_DECODE_16, window);
 321         else if (p->resource_type == ACPI_BUS_NUMBER_RANGE)
 322                 pnpacpi_parse_allocated_busresource(dev, p->minimum, len);
 323 }
 324
 325 static void pnpacpi_parse_allocated_ext_address_space(struct pnp_dev *dev,
 326                                                       struct acpi_resource *res)
 327 {
 328         struct acpi_resource_extended_address64 *p = &res->data.ext_address64;
 329         int window;
 330         u64 len;
 331
 332         len = addr_space_length(dev, p->minimum, p->maximum, p->address_length);
 333         window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
 334
 335         if (p->resource_type == ACPI_MEMORY_RANGE)
 336                 pnpacpi_parse_allocated_memresource(dev, p->minimum, len,
 337                         p->info.mem.write_protect, window);
 338         else if (p->resource_type == ACPI_IO_RANGE)
 339                 pnpacpi_parse_allocated_ioresource(dev, p->minimum, len,
 340                         p->granularity == 0xfff ? ACPI_DECODE_10 :
 341                                 ACPI_DECODE_16, window);
 342         else if (p->resource_type == ACPI_BUS_NUMBER_RANGE)
 343                 pnpacpi_parse_allocated_busresource(dev, p->minimum, len);
 344 }
 345
 346 static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
 347                                               void *data)
 348 {
 349         struct pnp_dev *dev = data;
 350         struct acpi_resource_irq *irq;
 351         struct acpi_resource_dma *dma;
 352         struct acpi_resource_io *io;
 353         struct acpi_resource_fixed_io *fixed_io;
 354         struct acpi_resource_vendor_typed *vendor_typed;
 355         struct acpi_resource_memory24 *memory24;
 356         struct acpi_resource_memory32 *memory32;
 357         struct acpi_resource_fixed_memory32 *fixed_memory32;
 358         struct acpi_resource_extended_irq *extended_irq;
 359         int i, flags;
 360
 361         switch (res->type) {
 362         case ACPI_RESOURCE_TYPE_IRQ:
 363                 /*
 364                  * Per spec, only one interrupt per descriptor is allowed in
 365                  * _CRS, but some firmware violates this, so parse them all.
 366                  */
 367                 irq = &res->data.irq;
 368                 if (irq->interrupt_count == 0)
 369                         pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED);
 370                 else {
 371                         for (i = 0; i < irq->interrupt_count; i++) {
 372                                 pnpacpi_parse_allocated_irqresource(dev,
 373                                         irq->interrupts[i],
 374                                         irq->triggering,
 375                                         irq->polarity,
 376                                     irq->sharable);
 377                         }
 378
 379                         /*
 380                          * The IRQ encoder puts a single interrupt in each
 381                          * descriptor, so if a _CRS descriptor has more than
 382                          * one interrupt, we won't be able to re-encode it.
 383                          */
 384                         if (pnp_can_write(dev) && irq->interrupt_count > 1) {
 385                                 dev_warn(&dev->dev, "multiple interrupts in "
 386                                          "_CRS descriptor; configuration can't "
 387                                          "be changed\n");
 388                                 dev->capabilities &= ~PNP_WRITE;
 389                         }
 390                 }
 391                 break;
 392
 393         case ACPI_RESOURCE_TYPE_DMA:
 394                 dma = &res->data.dma;
 395                 if (dma->channel_count > 0 && dma->channels[0] != (u8) -1)
 396                         flags = dma_flags(dev, dma->type, dma->bus_master,
 397                                           dma->transfer);
 398                 else
 399                         flags = IORESOURCE_DISABLED;
 400                 pnp_add_dma_resource(dev, dma->channels[0], flags);
 401                 break;
 402
 403         case ACPI_RESOURCE_TYPE_IO:
 404                 io = &res->data.io;
 405                 pnpacpi_parse_allocated_ioresource(dev,
 406                         io->minimum,
 407                         io->address_length,
 408                         io->io_decode, 0);
 409                 break;
 410
 411         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
 412         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
 413                 break;
 414
 415         case ACPI_RESOURCE_TYPE_FIXED_IO:
 416                 fixed_io = &res->data.fixed_io;
 417                 pnpacpi_parse_allocated_ioresource(dev,
 418                         fixed_io->address,
 419                         fixed_io->address_length,
 420                         ACPI_DECODE_10, 0);
 421                 break;
 422
 423         case ACPI_RESOURCE_TYPE_VENDOR:
 424                 vendor_typed = &res->data.vendor_typed;
 425                 pnpacpi_parse_allocated_vendor(dev, vendor_typed);
 426                 break;
 427
 428         case ACPI_RESOURCE_TYPE_END_TAG:
 429                 break;
 430
 431         case ACPI_RESOURCE_TYPE_MEMORY24:
 432                 memory24 = &res->data.memory24;
 433                 pnpacpi_parse_allocated_memresource(dev,
 434                         memory24->minimum,
 435                         memory24->address_length,
 436                         memory24->write_protect, 0);
 437                 break;
 438         case ACPI_RESOURCE_TYPE_MEMORY32:
 439                 memory32 = &res->data.memory32;
 440                 pnpacpi_parse_allocated_memresource(dev,
 441                         memory32->minimum,
 442                         memory32->address_length,
 443                         memory32->write_protect, 0);
 444                 break;
 445         case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
 446                 fixed_memory32 = &res->data.fixed_memory32;
 447                 pnpacpi_parse_allocated_memresource(dev,
 448                         fixed_memory32->address,
 449                         fixed_memory32->address_length,
 450                         fixed_memory32->write_protect, 0);
 451                 break;
 452         case ACPI_RESOURCE_TYPE_ADDRESS16:
 453         case ACPI_RESOURCE_TYPE_ADDRESS32:
 454         case ACPI_RESOURCE_TYPE_ADDRESS64:
 455                 pnpacpi_parse_allocated_address_space(dev, res);
 456                 break;
 457
 458         case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
 459                 pnpacpi_parse_allocated_ext_address_space(dev, res);
 460                 break;
 461
 462         case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
 463                 extended_irq = &res->data.extended_irq;
 464
 465                 if (extended_irq->interrupt_count == 0)
 466                         pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED);
 467                 else {
 468                         for (i = 0; i < extended_irq->interrupt_count; i++) {
 469                                 pnpacpi_parse_allocated_irqresource(dev,
 470                                         extended_irq->interrupts[i],
 471                                         extended_irq->triggering,
 472                                         extended_irq->polarity,
 473                                         extended_irq->sharable);
 474                         }
 475
 476                         /*
 477                          * The IRQ encoder puts a single interrupt in each
 478                          * descriptor, so if a _CRS descriptor has more than
 479                          * one interrupt, we won't be able to re-encode it.
 480                          */
 481                         if (pnp_can_write(dev) &&
 482                             extended_irq->interrupt_count > 1) {
 483                                 dev_warn(&dev->dev, "multiple interrupts in "
 484                                          "_CRS descriptor; configuration can't "
 485                                          "be changed\n");
 486                                 dev->capabilities &= ~PNP_WRITE;
 487                         }
 488                 }
 489                 break;
 490
 491         case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
 492                 break;
 493
 494         default:
 495                 dev_warn(&dev->dev, "unknown resource type %d in _CRS\n",
 496                          res->type);
 497                 return AE_ERROR;
 498         }
 499
 500         return AE_OK;
 501 }
 502
 503 int pnpacpi_parse_allocated_resource(struct pnp_dev *dev)
 504 {
 505         struct acpi_device *acpi_dev = dev->data;
 506         acpi_handle handle = acpi_dev->handle;
 507         acpi_status status;
 508
 509         pnp_dbg(&dev->dev, "parse allocated resources\n");
 510
 511         pnp_init_resources(dev);
 512
 513         status = acpi_walk_resources(handle, METHOD_NAME__CRS,
 514                                      pnpacpi_allocated_resource, dev);
 515
 516         if (ACPI_FAILURE(status)) {
 517                 if (status != AE_NOT_FOUND)
 518                         dev_err(&dev->dev, "can't evaluate _CRS: %d", status);
 519                 return -EPERM;
 520         }
 521         return 0;
 522 }
 523
 524 static __init void pnpacpi_parse_dma_option(struct pnp_dev *dev,
 525                                             unsigned int option_flags,
 526                                             struct acpi_resource_dma *p)
 527 {
 528         int i;
 529         unsigned char map = 0, flags;
 530
 531         if (p->channel_count == 0)
 532                 return;
 533
 534         for (i = 0; i < p->channel_count; i++)
 535                 map |= 1 << p->channels[i];
 536
 537         flags = dma_flags(dev, p->type, p->bus_master, p->transfer);
 538         pnp_register_dma_resource(dev, option_flags, map, flags);
 539 }
 540
 541 static __init void pnpacpi_parse_irq_option(struct pnp_dev *dev,
 542                                             unsigned int option_flags,
 543                                             struct acpi_resource_irq *p)
 544 {
 545         int i;
 546         pnp_irq_mask_t map;
 547         unsigned char flags;
 548
 549         if (p->interrupt_count == 0)
 550                 return;
 551
 552         bitmap_zero(map.bits, PNP_IRQ_NR);
 553         for (i = 0; i < p->interrupt_count; i++)
 554                 if (p->interrupts[i])
 555                         __set_bit(p->interrupts[i], map.bits);
 556
 557         flags = irq_flags(p->triggering, p->polarity, p->sharable);
 558         pnp_register_irq_resource(dev, option_flags, &map, flags);
 559 }
 560
 561 static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev,
 562                                         unsigned int option_flags,
 563                                         struct acpi_resource_extended_irq *p)
 564 {
 565         int i;
 566         pnp_irq_mask_t map;
 567         unsigned char flags;
 568
 569         if (p->interrupt_count == 0)
 570                 return;
 571
 572         bitmap_zero(map.bits, PNP_IRQ_NR);
 573         for (i = 0; i < p->interrupt_count; i++) {
 574                 if (p->interrupts[i]) {
 575                         if (p->interrupts[i] < PNP_IRQ_NR)
 576                                 __set_bit(p->interrupts[i], map.bits);
 577                         else
 578                                 dev_err(&dev->dev, "ignoring IRQ %d option "
 579                                         "(too large for %d entry bitmap)\n",
 580                                         p->interrupts[i], PNP_IRQ_NR);
 581                 }
 582         }
 583
 584         flags = irq_flags(p->triggering, p->polarity, p->sharable);
 585         pnp_register_irq_resource(dev, option_flags, &map, flags);
 586 }
 587
 588 static __init void pnpacpi_parse_port_option(struct pnp_dev *dev,
 589                                              unsigned int option_flags,
 590                                              struct acpi_resource_io *io)
 591 {
 592         unsigned char flags = 0;
 593
 594         if (io->address_length == 0)
 595                 return;
 596
 597         if (io->io_decode == ACPI_DECODE_16)
 598                 flags = IORESOURCE_IO_16BIT_ADDR;
 599         pnp_register_port_resource(dev, option_flags, io->minimum, io->maximum,
 600                                    io->alignment, io->address_length, flags);
 601 }
 602
 603 static __init void pnpacpi_parse_fixed_port_option(struct pnp_dev *dev,
 604                                         unsigned int option_flags,
 605                                         struct acpi_resource_fixed_io *io)
 606 {
 607         if (io->address_length == 0)
 608                 return;
 609
 610         pnp_register_port_resource(dev, option_flags, io->address, io->address,
 611                                    0, io->address_length, IORESOURCE_IO_FIXED);
 612 }
 613
 614 static __init void pnpacpi_parse_mem24_option(struct pnp_dev *dev,
 615                                               unsigned int option_flags,
 616                                               struct acpi_resource_memory24 *p)
 617 {
 618         unsigned char flags = 0;
 619
 620         if (p->address_length == 0)
 621                 return;
 622
 623         if (p->write_protect == ACPI_READ_WRITE_MEMORY)
 624                 flags = IORESOURCE_MEM_WRITEABLE;
 625         pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
 626                                   p->alignment, p->address_length, flags);
 627 }
 628
 629 static __init void pnpacpi_parse_mem32_option(struct pnp_dev *dev,
 630                                               unsigned int option_flags,
 631                                               struct acpi_resource_memory32 *p)
 632 {
 633         unsigned char flags = 0;
 634
 635         if (p->address_length == 0)
 636                 return;
 637
 638         if (p->write_protect == ACPI_READ_WRITE_MEMORY)
 639                 flags = IORESOURCE_MEM_WRITEABLE;
 640         pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
 641                                   p->alignment, p->address_length, flags);
 642 }
 643
 644 static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_dev *dev,
 645                                         unsigned int option_flags,
 646                                         struct acpi_resource_fixed_memory32 *p)
 647 {
 648         unsigned char flags = 0;
 649
 650         if (p->address_length == 0)
 651                 return;
 652
 653         if (p->write_protect == ACPI_READ_WRITE_MEMORY)
 654                 flags = IORESOURCE_MEM_WRITEABLE;
 655         pnp_register_mem_resource(dev, option_flags, p->address, p->address,
 656                                   0, p->address_length, flags);
 657 }
 658
 659 static __init void pnpacpi_parse_address_option(struct pnp_dev *dev,
 660                                                 unsigned int option_flags,
 661                                                 struct acpi_resource *r)
 662 {
 663         struct acpi_resource_address64 addr, *p = &addr;
 664         acpi_status status;
 665         unsigned char flags = 0;
 666
 667         status = acpi_resource_to_address64(r, p);
 668         if (ACPI_FAILURE(status)) {
 669                 dev_warn(&dev->dev, "can't convert resource type %d\n",
 670                          r->type);
 671                 return;
 672         }
 673
 674         if (p->address_length == 0)
 675                 return;
 676
 677         if (p->resource_type == ACPI_MEMORY_RANGE) {
 678                 if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY)
 679                         flags = IORESOURCE_MEM_WRITEABLE;
 680                 pnp_register_mem_resource(dev, option_flags, p->minimum,
 681                                           p->minimum, 0, p->address_length,
 682                                           flags);
 683         } else if (p->resource_type == ACPI_IO_RANGE)
 684                 pnp_register_port_resource(dev, option_flags, p->minimum,
 685                                            p->minimum, 0, p->address_length,
 686                                            IORESOURCE_IO_FIXED);
 687 }
 688
 689 static __init void pnpacpi_parse_ext_address_option(struct pnp_dev *dev,
 690                                                     unsigned int option_flags,
 691                                                     struct acpi_resource *r)
 692 {
 693         struct acpi_resource_extended_address64 *p = &r->data.ext_address64;
 694         unsigned char flags = 0;
 695
 696         if (p->address_length == 0)
 697                 return;
 698
 699         if (p->resource_type == ACPI_MEMORY_RANGE) {
 700                 if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY)
 701                         flags = IORESOURCE_MEM_WRITEABLE;
 702                 pnp_register_mem_resource(dev, option_flags, p->minimum,
 703                                           p->minimum, 0, p->address_length,
 704                                           flags);
 705         } else if (p->resource_type == ACPI_IO_RANGE)
 706                 pnp_register_port_resource(dev, option_flags, p->minimum,
 707                                            p->minimum, 0, p->address_length,
 708                                            IORESOURCE_IO_FIXED);
 709 }
 710
 711 struct acpipnp_parse_option_s {
 712         struct pnp_dev *dev;
 713         unsigned int option_flags;
 714 };
 715
 716 static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
 717                                                   void *data)
 718 {
 719         int priority;
 720         struct acpipnp_parse_option_s *parse_data = data;
 721         struct pnp_dev *dev = parse_data->dev;
 722         unsigned int option_flags = parse_data->option_flags;
 723
 724         switch (res->type) {
 725         case ACPI_RESOURCE_TYPE_IRQ:
 726                 pnpacpi_parse_irq_option(dev, option_flags, &res->data.irq);
 727                 break;
 728
 729         case ACPI_RESOURCE_TYPE_DMA:
 730                 pnpacpi_parse_dma_option(dev, option_flags, &res->data.dma);
 731                 break;
 732
 733         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
 734                 switch (res->data.start_dpf.compatibility_priority) {
 735                 case ACPI_GOOD_CONFIGURATION:
 736                         priority = PNP_RES_PRIORITY_PREFERRED;
 737                         break;
 738
 739                 case ACPI_ACCEPTABLE_CONFIGURATION:
 740                         priority = PNP_RES_PRIORITY_ACCEPTABLE;
 741                         break;
 742
 743                 case ACPI_SUB_OPTIMAL_CONFIGURATION:
 744                         priority = PNP_RES_PRIORITY_FUNCTIONAL;
 745                         break;
 746                 default:
 747                         priority = PNP_RES_PRIORITY_INVALID;
 748                         break;
 749                 }
 750                 parse_data->option_flags = pnp_new_dependent_set(dev, priority);
 751                 break;
 752
 753         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
 754                 parse_data->option_flags = 0;
 755                 break;
 756
 757         case ACPI_RESOURCE_TYPE_IO:
 758                 pnpacpi_parse_port_option(dev, option_flags, &res->data.io);
 759                 break;
 760
 761         case ACPI_RESOURCE_TYPE_FIXED_IO:
 762                 pnpacpi_parse_fixed_port_option(dev, option_flags,
 763                                                 &res->data.fixed_io);
 764                 break;
 765
 766         case ACPI_RESOURCE_TYPE_VENDOR:
 767         case ACPI_RESOURCE_TYPE_END_TAG:
 768                 break;
 769
 770         case ACPI_RESOURCE_TYPE_MEMORY24:
 771                 pnpacpi_parse_mem24_option(dev, option_flags,
 772                                            &res->data.memory24);
 773                 break;
 774
 775         case ACPI_RESOURCE_TYPE_MEMORY32:
 776                 pnpacpi_parse_mem32_option(dev, option_flags,
 777                                            &res->data.memory32);
 778                 break;
 779
 780         case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
 781                 pnpacpi_parse_fixed_mem32_option(dev, option_flags,
 782                                                  &res->data.fixed_memory32);
 783                 break;
 784
 785         case ACPI_RESOURCE_TYPE_ADDRESS16:
 786         case ACPI_RESOURCE_TYPE_ADDRESS32:
 787         case ACPI_RESOURCE_TYPE_ADDRESS64:
 788                 pnpacpi_parse_address_option(dev, option_flags, res);
 789                 break;
 790
 791         case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
 792                 pnpacpi_parse_ext_address_option(dev, option_flags, res);
 793                 break;
 794
 795         case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
 796                 pnpacpi_parse_ext_irq_option(dev, option_flags,
 797                                              &res->data.extended_irq);
 798                 break;
 799
 800         case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
 801                 break;
 802
 803         default:
 804                 dev_warn(&dev->dev, "unknown resource type %d in _PRS\n",
 805                          res->type);
 806                 return AE_ERROR;
 807         }
 808
 809         return AE_OK;
 810 }
 811
 812 int __init pnpacpi_parse_resource_option_data(struct pnp_dev *dev)
 813 {
 814         struct acpi_device *acpi_dev = dev->data;
 815         acpi_handle handle = acpi_dev->handle;
 816         acpi_status status;
 817         struct acpipnp_parse_option_s parse_data;
 818
 819         pnp_dbg(&dev->dev, "parse resource options\n");
 820
 821         parse_data.dev = dev;
 822         parse_data.option_flags = 0;
 823
 824         status = acpi_walk_resources(handle, METHOD_NAME__PRS,
 825                                      pnpacpi_option_resource, &parse_data);
 826
 827         if (ACPI_FAILURE(status)) {
 828                 if (status != AE_NOT_FOUND)
 829                         dev_err(&dev->dev, "can't evaluate _PRS: %d", status);
 830                 return -EPERM;
 831         }
 832         return 0;
 833 }
 834
 835 static int pnpacpi_supported_resource(struct acpi_resource *res)
 836 {
 837         switch (res->type) {
 838         case ACPI_RESOURCE_TYPE_IRQ:
 839         case ACPI_RESOURCE_TYPE_DMA:
 840         case ACPI_RESOURCE_TYPE_IO:
 841         case ACPI_RESOURCE_TYPE_FIXED_IO:
 842         case ACPI_RESOURCE_TYPE_MEMORY24:
 843         case ACPI_RESOURCE_TYPE_MEMORY32:
 844         case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
 845         case ACPI_RESOURCE_TYPE_ADDRESS16:
 846         case ACPI_RESOURCE_TYPE_ADDRESS32:
 847         case ACPI_RESOURCE_TYPE_ADDRESS64:
 848         case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
 849         case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
 850                 return 1;
 851         }
 852         return 0;
 853 }
 854
 855 /*
 856  * Set resource
 857  */
 858 static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
 859                                            void *data)
 860 {
 861         int *res_cnt = data;
 862
 863         if (pnpacpi_supported_resource(res))
 864                 (*res_cnt)++;
 865         return AE_OK;
 866 }
 867
 868 static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
 869 {
 870         struct acpi_resource **resource = data;
 871
 872         if (pnpacpi_supported_resource(res)) {
 873                 (*resource)->type = res->type;
 874                 (*resource)->length = sizeof(struct acpi_resource);
 875                 if (res->type == ACPI_RESOURCE_TYPE_IRQ)
 876                         (*resource)->data.irq.descriptor_length =
 877                                         res->data.irq.descriptor_length;
 878                 (*resource)++;
 879         }
 880
 881         return AE_OK;
 882 }
 883
 884 int pnpacpi_build_resource_template(struct pnp_dev *dev,
 885                                     struct acpi_buffer *buffer)
 886 {
 887         struct acpi_device *acpi_dev = dev->data;
 888         acpi_handle handle = acpi_dev->handle;
 889         struct acpi_resource *resource;
 890         int res_cnt = 0;
 891         acpi_status status;
 892
 893         status = acpi_walk_resources(handle, METHOD_NAME__CRS,
 894                                      pnpacpi_count_resources, &res_cnt);
 895         if (ACPI_FAILURE(status)) {
 896                 dev_err(&dev->dev, "can't evaluate _CRS: %d\n", status);
 897                 return -EINVAL;
 898         }
 899         if (!res_cnt)
 900                 return -EINVAL;
 901         buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
 902         buffer->pointer = kzalloc(buffer->length - 1, GFP_KERNEL);
 903         if (!buffer->pointer)
 904                 return -ENOMEM;
 905
 906         resource = (struct acpi_resource *)buffer->pointer;
 907         status = acpi_walk_resources(handle, METHOD_NAME__CRS,
 908                                      pnpacpi_type_resources, &resource);
 909         if (ACPI_FAILURE(status)) {
 910                 kfree(buffer->pointer);
 911                 dev_err(&dev->dev, "can't evaluate _CRS: %d\n", status);
 912                 return -EINVAL;
 913         }
 914         /* resource will pointer the end resource now */
 915         resource->type = ACPI_RESOURCE_TYPE_END_TAG;
 916
 917         return 0;
 918 }
 919
 920 static void pnpacpi_encode_irq(struct pnp_dev *dev,
 921                                struct acpi_resource *resource,
 922                                struct resource *p)
 923 {
 924         struct acpi_resource_irq *irq = &resource->data.irq;
 925         int triggering, polarity, shareable;
 926
 927         if (!pnp_resource_enabled(p)) {
 928                 irq->interrupt_count = 0;
 929                 pnp_dbg(&dev->dev, "  encode irq (%s)\n",
 930                         p ? "disabled" : "missing");
 931                 return;
 932         }
 933
 934         decode_irq_flags(dev, p->flags, &triggering, &polarity, &shareable);
 935         irq->triggering = triggering;
 936         irq->polarity = polarity;
 937         irq->sharable = shareable;
 938         irq->interrupt_count = 1;
 939         irq->interrupts[0] = p->start;
 940
 941         pnp_dbg(&dev->dev, "  encode irq %d %s %s %s (%d-byte descriptor)\n",
 942                 (int) p->start,
 943                 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
 944                 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
 945                 irq->sharable == ACPI_SHARED ? "shared" : "exclusive",
 946                 irq->descriptor_length);
 947 }
 948
 949 static void pnpacpi_encode_ext_irq(struct pnp_dev *dev,
 950                                    struct acpi_resource *resource,
 951                                    struct resource *p)
 952 {
 953         struct acpi_resource_extended_irq *extended_irq = &resource->data.extended_irq;
 954         int triggering, polarity, shareable;
 955
 956         if (!pnp_resource_enabled(p)) {
 957                 extended_irq->interrupt_count = 0;
 958                 pnp_dbg(&dev->dev, "  encode extended irq (%s)\n",
 959                         p ? "disabled" : "missing");
 960                 return;
 961         }
 962
 963         decode_irq_flags(dev, p->flags, &triggering, &polarity, &shareable);
 964         extended_irq->producer_consumer = ACPI_CONSUMER;
 965         extended_irq->triggering = triggering;
 966         extended_irq->polarity = polarity;
 967         extended_irq->sharable = shareable;
 968         extended_irq->interrupt_count = 1;
 969         extended_irq->interrupts[0] = p->start;
 970
 971         pnp_dbg(&dev->dev, "  encode irq %d %s %s %s\n", (int) p->start,
 972                 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
 973                 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
 974                 extended_irq->sharable == ACPI_SHARED ? "shared" : "exclusive");
 975 }
 976
 977 static void pnpacpi_encode_dma(struct pnp_dev *dev,
 978                                struct acpi_resource *resource,
 979                                struct resource *p)
 980 {
 981         struct acpi_resource_dma *dma = &resource->data.dma;
 982
 983         if (!pnp_resource_enabled(p)) {
 984                 dma->channel_count = 0;
 985                 pnp_dbg(&dev->dev, "  encode dma (%s)\n",
 986                         p ? "disabled" : "missing");
 987                 return;
 988         }
 989
 990         /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
 991         switch (p->flags & IORESOURCE_DMA_SPEED_MASK) {
 992         case IORESOURCE_DMA_TYPEA:
 993                 dma->type = ACPI_TYPE_A;
 994                 break;
 995         case IORESOURCE_DMA_TYPEB:
 996                 dma->type = ACPI_TYPE_B;
 997                 break;
 998         case IORESOURCE_DMA_TYPEF:
 999                 dma->type = ACPI_TYPE_F;
1000                 break;
1001         default:
1002                 dma->type = ACPI_COMPATIBILITY;
1003         }
1004
1005         switch (p->flags & IORESOURCE_DMA_TYPE_MASK) {
1006         case IORESOURCE_DMA_8BIT:
1007                 dma->transfer = ACPI_TRANSFER_8;
1008                 break;
1009         case IORESOURCE_DMA_8AND16BIT:
1010                 dma->transfer = ACPI_TRANSFER_8_16;
1011                 break;
1012         default:
1013                 dma->transfer = ACPI_TRANSFER_16;
1014         }
1015
1016         dma->bus_master = !!(p->flags & IORESOURCE_DMA_MASTER);
1017         dma->channel_count = 1;
1018         dma->channels[0] = p->start;
1019
1020         pnp_dbg(&dev->dev, "  encode dma %d "
1021                 "type %#x transfer %#x master %d\n",
1022                 (int) p->start, dma->type, dma->transfer, dma->bus_master);
1023 }
1024
1025 static void pnpacpi_encode_io(struct pnp_dev *dev,
1026                               struct acpi_resource *resource,
1027                               struct resource *p)
1028 {
1029         struct acpi_resource_io *io = &resource->data.io;
1030
1031         if (pnp_resource_enabled(p)) {
1032                 /* Note: pnp_assign_port copies pnp_port->flags into p->flags */
1033                 io->io_decode = (p->flags & IORESOURCE_IO_16BIT_ADDR) ?
1034                     ACPI_DECODE_16 : ACPI_DECODE_10;
1035                 io->minimum = p->start;
1036                 io->maximum = p->end;
1037                 io->alignment = 0;      /* Correct? */
1038                 io->address_length = p->end - p->start + 1;
1039         } else {
1040                 io->minimum = 0;
1041                 io->address_length = 0;
1042         }
1043
1044         pnp_dbg(&dev->dev, "  encode io %#x-%#x decode %#x\n", io->minimum,
1045                 io->minimum + io->address_length - 1, io->io_decode);
1046 }
1047
1048 static void pnpacpi_encode_fixed_io(struct pnp_dev *dev,
1049                                     struct acpi_resource *resource,
1050                                     struct resource *p)
1051 {
1052         struct acpi_resource_fixed_io *fixed_io = &resource->data.fixed_io;
1053
1054         if (pnp_resource_enabled(p)) {
1055                 fixed_io->address = p->start;
1056                 fixed_io->address_length = p->end - p->start + 1;
1057         } else {
1058                 fixed_io->address = 0;
1059                 fixed_io->address_length = 0;
1060         }
1061
1062         pnp_dbg(&dev->dev, "  encode fixed_io %#x-%#x\n", fixed_io->address,
1063                 fixed_io->address + fixed_io->address_length - 1);
1064 }
1065
1066 static void pnpacpi_encode_mem24(struct pnp_dev *dev,
1067                                  struct acpi_resource *resource,
1068                                  struct resource *p)
1069 {
1070         struct acpi_resource_memory24 *memory24 = &resource->data.memory24;
1071
1072         if (pnp_resource_enabled(p)) {
1073                 /* Note: pnp_assign_mem copies pnp_mem->flags into p->flags */
1074                 memory24->write_protect = p->flags & IORESOURCE_MEM_WRITEABLE ?
1075                     ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1076                 memory24->minimum = p->start;
1077                 memory24->maximum = p->end;
1078                 memory24->alignment = 0;
1079                 memory24->address_length = p->end - p->start + 1;
1080         } else {
1081                 memory24->minimum = 0;
1082                 memory24->address_length = 0;
1083         }
1084
1085         pnp_dbg(&dev->dev, "  encode mem24 %#x-%#x write_protect %#x\n",
1086                 memory24->minimum,
1087                 memory24->minimum + memory24->address_length - 1,
1088                 memory24->write_protect);
1089 }
1090
1091 static void pnpacpi_encode_mem32(struct pnp_dev *dev,
1092                                  struct acpi_resource *resource,
1093                                  struct resource *p)
1094 {
1095         struct acpi_resource_memory32 *memory32 = &resource->data.memory32;
1096
1097         if (pnp_resource_enabled(p)) {
1098                 memory32->write_protect = p->flags & IORESOURCE_MEM_WRITEABLE ?
1099                     ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1100                 memory32->minimum = p->start;
1101                 memory32->maximum = p->end;
1102                 memory32->alignment = 0;
1103                 memory32->address_length = p->end - p->start + 1;
1104         } else {
1105                 memory32->minimum = 0;
1106                 memory32->alignment = 0;
1107         }
1108
1109         pnp_dbg(&dev->dev, "  encode mem32 %#x-%#x write_protect %#x\n",
1110                 memory32->minimum,
1111                 memory32->minimum + memory32->address_length - 1,
1112                 memory32->write_protect);
1113 }
1114
1115 static void pnpacpi_encode_fixed_mem32(struct pnp_dev *dev,
1116                                        struct acpi_resource *resource,
1117                                        struct resource *p)
1118 {
1119         struct acpi_resource_fixed_memory32 *fixed_memory32 = &resource->data.fixed_memory32;
1120
1121         if (pnp_resource_enabled(p)) {
1122                 fixed_memory32->write_protect =
1123                     p->flags & IORESOURCE_MEM_WRITEABLE ?
1124                     ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1125                 fixed_memory32->address = p->start;
1126                 fixed_memory32->address_length = p->end - p->start + 1;
1127         } else {
1128                 fixed_memory32->address = 0;
1129                 fixed_memory32->address_length = 0;
1130         }
1131
1132         pnp_dbg(&dev->dev, "  encode fixed_mem32 %#x-%#x write_protect %#x\n",
1133                 fixed_memory32->address,
1134                 fixed_memory32->address + fixed_memory32->address_length - 1,
1135                 fixed_memory32->write_protect);
1136 }
1137
1138 int pnpacpi_encode_resources(struct pnp_dev *dev, struct acpi_buffer *buffer)
1139 {
1140         int i = 0;
1141         /* pnpacpi_build_resource_template allocates extra mem */
1142         int res_cnt = (buffer->length - 1) / sizeof(struct acpi_resource) - 1;
1143         struct acpi_resource *resource = buffer->pointer;
1144         int port = 0, irq = 0, dma = 0, mem = 0;
1145
1146         pnp_dbg(&dev->dev, "encode %d resources\n", res_cnt);
1147         while (i < res_cnt) {
1148                 switch (resource->type) {
1149                 case ACPI_RESOURCE_TYPE_IRQ:
1150                         pnpacpi_encode_irq(dev, resource,
1151                                pnp_get_resource(dev, IORESOURCE_IRQ, irq));
1152                         irq++;
1153                         break;
1154
1155                 case ACPI_RESOURCE_TYPE_DMA:
1156                         pnpacpi_encode_dma(dev, resource,
1157                                 pnp_get_resource(dev, IORESOURCE_DMA, dma));
1158                         dma++;
1159                         break;
1160                 case ACPI_RESOURCE_TYPE_IO:
1161                         pnpacpi_encode_io(dev, resource,
1162                                 pnp_get_resource(dev, IORESOURCE_IO, port));
1163                         port++;
1164                         break;
1165                 case ACPI_RESOURCE_TYPE_FIXED_IO:
1166                         pnpacpi_encode_fixed_io(dev, resource,
1167                                 pnp_get_resource(dev, IORESOURCE_IO, port));
1168                         port++;
1169                         break;
1170                 case ACPI_RESOURCE_TYPE_MEMORY24:
1171                         pnpacpi_encode_mem24(dev, resource,
1172                                 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1173                         mem++;
1174                         break;
1175                 case ACPI_RESOURCE_TYPE_MEMORY32:
1176                         pnpacpi_encode_mem32(dev, resource,
1177                                 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1178                         mem++;
1179                         break;
1180                 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
1181                         pnpacpi_encode_fixed_mem32(dev, resource,
1182                                 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1183                         mem++;
1184                         break;
1185                 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
1186                         pnpacpi_encode_ext_irq(dev, resource,
1187                                 pnp_get_resource(dev, IORESOURCE_IRQ, irq));
1188                         irq++;
1189                         break;
1190                 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
1191                 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
1192                 case ACPI_RESOURCE_TYPE_VENDOR:
1193                 case ACPI_RESOURCE_TYPE_END_TAG:
1194                 case ACPI_RESOURCE_TYPE_ADDRESS16:
1195                 case ACPI_RESOURCE_TYPE_ADDRESS32:
1196                 case ACPI_RESOURCE_TYPE_ADDRESS64:
1197                 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
1198                 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
1199                 default:        /* other type */
1200                         dev_warn(&dev->dev, "can't encode unknown resource "
1201                                  "type %d\n", resource->type);
1202                         return -EINVAL;
1203                 }
1204                 resource++;
1205                 i++;
1206         }
1207         return 0;
1208 }