include/acpi/acrestyp.h

   1 /******************************************************************************
   2  *
   3  * Name: acrestyp.h - Defines, types, and structures for resource descriptors
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2016, Intel Corp.
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions, and the following disclaimer,
  16  *    without modification.
  17  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  18  *    substantially similar to the "NO WARRANTY" disclaimer below
  19  *    ("Disclaimer") and any redistribution must be conditioned upon
  20  *    including a substantially similar Disclaimer requirement for further
  21  *    binary redistribution.
  22  * 3. Neither the names of the above-listed copyright holders nor the names
  23  *    of any contributors may be used to endorse or promote products derived
  24  *    from this software without specific prior written permission.
  25  *
  26  * Alternatively, this software may be distributed under the terms of the
  27  * GNU General Public License ("GPL") version 2 as published by the Free
  28  * Software Foundation.
  29  *
  30  * NO WARRANTY
  31  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  32  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  33  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  34  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  35  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  39  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  40  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  41  * POSSIBILITY OF SUCH DAMAGES.
  42  */
  43
  44 #ifndef __ACRESTYP_H__
  45 #define __ACRESTYP_H__
  46
  47 /*
  48  * Definitions for Resource Attributes
  49  */
  50 typedef u16 acpi_rs_length;     /* Resource Length field is fixed at 16 bits */
  51 typedef u32 acpi_rsdesc_size;   /* Max Resource Descriptor size is (Length+3) = (64K-1)+3 */
  52
  53 /*
  54  * Memory Attributes
  55  */
  56 #define ACPI_READ_ONLY_MEMORY           (u8) 0x00
  57 #define ACPI_READ_WRITE_MEMORY          (u8) 0x01
  58
  59 #define ACPI_NON_CACHEABLE_MEMORY       (u8) 0x00
  60 #define ACPI_CACHABLE_MEMORY            (u8) 0x01
  61 #define ACPI_WRITE_COMBINING_MEMORY     (u8) 0x02
  62 #define ACPI_PREFETCHABLE_MEMORY        (u8) 0x03
  63
  64 /*! [Begin] no source code translation */
  65 /*
  66  * IO Attributes
  67  * The ISA IO ranges are:     n000-n0FFh,  n400-n4FFh, n800-n8FFh, nC00-nCFFh.
  68  * The non-ISA IO ranges are: n100-n3FFh,  n500-n7FFh, n900-nBFFh, nCD0-nFFFh.
  69  */
  70 /*! [End] no source code translation !*/
  71
  72 #define ACPI_NON_ISA_ONLY_RANGES        (u8) 0x01
  73 #define ACPI_ISA_ONLY_RANGES            (u8) 0x02
  74 #define ACPI_ENTIRE_RANGE               (ACPI_NON_ISA_ONLY_RANGES | ACPI_ISA_ONLY_RANGES)
  75
  76 /* Type of translation - 1=Sparse, 0=Dense */
  77
  78 #define ACPI_SPARSE_TRANSLATION         (u8) 0x01
  79
  80 /*
  81  * IO Port Descriptor Decode
  82  */
  83 #define ACPI_DECODE_10                  (u8) 0x00       /* 10-bit IO address decode */
  84 #define ACPI_DECODE_16                  (u8) 0x01       /* 16-bit IO address decode */
  85
  86 /*
  87  * Interrupt attributes - used in multiple descriptors
  88  */
  89
  90 /* Triggering */
  91
  92 #define ACPI_LEVEL_SENSITIVE            (u8) 0x00
  93 #define ACPI_EDGE_SENSITIVE             (u8) 0x01
  94
  95 /* Polarity */
  96
  97 #define ACPI_ACTIVE_HIGH                (u8) 0x00
  98 #define ACPI_ACTIVE_LOW                 (u8) 0x01
  99 #define ACPI_ACTIVE_BOTH                (u8) 0x02
 100
 101 /* Sharing */
 102
 103 #define ACPI_EXCLUSIVE                  (u8) 0x00
 104 #define ACPI_SHARED                     (u8) 0x01
 105
 106 /* Wake */
 107
 108 #define ACPI_NOT_WAKE_CAPABLE           (u8) 0x00
 109 #define ACPI_WAKE_CAPABLE               (u8) 0x01
 110
 111 /*
 112  * DMA Attributes
 113  */
 114 #define ACPI_COMPATIBILITY              (u8) 0x00
 115 #define ACPI_TYPE_A                     (u8) 0x01
 116 #define ACPI_TYPE_B                     (u8) 0x02
 117 #define ACPI_TYPE_F                     (u8) 0x03
 118
 119 #define ACPI_NOT_BUS_MASTER             (u8) 0x00
 120 #define ACPI_BUS_MASTER                 (u8) 0x01
 121
 122 #define ACPI_TRANSFER_8                 (u8) 0x00
 123 #define ACPI_TRANSFER_8_16              (u8) 0x01
 124 #define ACPI_TRANSFER_16                (u8) 0x02
 125
 126 /*
 127  * Start Dependent Functions Priority definitions
 128  */
 129 #define ACPI_GOOD_CONFIGURATION         (u8) 0x00
 130 #define ACPI_ACCEPTABLE_CONFIGURATION   (u8) 0x01
 131 #define ACPI_SUB_OPTIMAL_CONFIGURATION  (u8) 0x02
 132
 133 /*
 134  * 16, 32 and 64-bit Address Descriptor resource types
 135  */
 136 #define ACPI_MEMORY_RANGE               (u8) 0x00
 137 #define ACPI_IO_RANGE                   (u8) 0x01
 138 #define ACPI_BUS_NUMBER_RANGE           (u8) 0x02
 139
 140 #define ACPI_ADDRESS_NOT_FIXED          (u8) 0x00
 141 #define ACPI_ADDRESS_FIXED              (u8) 0x01
 142
 143 #define ACPI_POS_DECODE                 (u8) 0x00
 144 #define ACPI_SUB_DECODE                 (u8) 0x01
 145
 146 /* Producer/Consumer */
 147
 148 #define ACPI_PRODUCER                   (u8) 0x00
 149 #define ACPI_CONSUMER                   (u8) 0x01
 150
 151 /*
 152  * If possible, pack the following structures to byte alignment
 153  */
 154 #ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
 155 #pragma pack(1)
 156 #endif
 157
 158 /* UUID data structures for use in vendor-defined resource descriptors */
 159
 160 struct acpi_uuid {
 161         u8 data[ACPI_UUID_LENGTH];
 162 };
 163
 164 struct acpi_vendor_uuid {
 165         u8 subtype;
 166         u8 data[ACPI_UUID_LENGTH];
 167 };
 168
 169 /*
 170  * Structures used to describe device resources
 171  */
 172 struct acpi_resource_irq {
 173         u8 descriptor_length;
 174         u8 triggering;
 175         u8 polarity;
 176         u8 sharable;
 177         u8 wake_capable;
 178         u8 interrupt_count;
 179         u8 interrupts[1];
 180 };
 181
 182 struct acpi_resource_dma {
 183         u8 type;
 184         u8 bus_master;
 185         u8 transfer;
 186         u8 channel_count;
 187         u8 channels[1];
 188 };
 189
 190 struct acpi_resource_start_dependent {
 191         u8 descriptor_length;
 192         u8 compatibility_priority;
 193         u8 performance_robustness;
 194 };
 195
 196 /*
 197  * The END_DEPENDENT_FUNCTIONS_RESOURCE struct is not
 198  * needed because it has no fields
 199  */
 200
 201 struct acpi_resource_io {
 202         u8 io_decode;
 203         u8 alignment;
 204         u8 address_length;
 205         u16 minimum;
 206         u16 maximum;
 207 };
 208
 209 struct acpi_resource_fixed_io {
 210         u16 address;
 211         u8 address_length;
 212 };
 213
 214 struct acpi_resource_fixed_dma {
 215         u16 request_lines;
 216         u16 channels;
 217         u8 width;
 218 };
 219
 220 /* Values for Width field above */
 221
 222 #define ACPI_DMA_WIDTH8                         0
 223 #define ACPI_DMA_WIDTH16                        1
 224 #define ACPI_DMA_WIDTH32                        2
 225 #define ACPI_DMA_WIDTH64                        3
 226 #define ACPI_DMA_WIDTH128                       4
 227 #define ACPI_DMA_WIDTH256                       5
 228
 229 struct acpi_resource_vendor {
 230         u16 byte_length;
 231         u8 byte_data[1];
 232 };
 233
 234 /* Vendor resource with UUID info (introduced in ACPI 3.0) */
 235
 236 struct acpi_resource_vendor_typed {
 237         u16 byte_length;
 238         u8 uuid_subtype;
 239         u8 uuid[ACPI_UUID_LENGTH];
 240         u8 byte_data[1];
 241 };
 242
 243 struct acpi_resource_end_tag {
 244         u8 checksum;
 245 };
 246
 247 struct acpi_resource_memory24 {
 248         u8 write_protect;
 249         u16 minimum;
 250         u16 maximum;
 251         u16 alignment;
 252         u16 address_length;
 253 };
 254
 255 struct acpi_resource_memory32 {
 256         u8 write_protect;
 257         u32 minimum;
 258         u32 maximum;
 259         u32 alignment;
 260         u32 address_length;
 261 };
 262
 263 struct acpi_resource_fixed_memory32 {
 264         u8 write_protect;
 265         u32 address;
 266         u32 address_length;
 267 };
 268
 269 struct acpi_memory_attribute {
 270         u8 write_protect;
 271         u8 caching;
 272         u8 range_type;
 273         u8 translation;
 274 };
 275
 276 struct acpi_io_attribute {
 277         u8 range_type;
 278         u8 translation;
 279         u8 translation_type;
 280         u8 reserved1;
 281 };
 282
 283 union acpi_resource_attribute {
 284         struct acpi_memory_attribute mem;
 285         struct acpi_io_attribute io;
 286
 287         /* Used for the *word_space macros */
 288
 289         u8 type_specific;
 290 };
 291
 292 struct acpi_resource_source {
 293         u8 index;
 294         u16 string_length;
 295         char *string_ptr;
 296 };
 297
 298 /* Fields common to all address descriptors, 16/32/64 bit */
 299
 300 #define ACPI_RESOURCE_ADDRESS_COMMON \
 301         u8                                      resource_type; \
 302         u8                                      producer_consumer; \
 303         u8                                      decode; \
 304         u8                                      min_address_fixed; \
 305         u8                                      max_address_fixed; \
 306         union acpi_resource_attribute           info;
 307
 308 struct acpi_address16_attribute {
 309         u16 granularity;
 310         u16 minimum;
 311         u16 maximum;
 312         u16 translation_offset;
 313         u16 address_length;
 314 };
 315
 316 struct acpi_address32_attribute {
 317         u32 granularity;
 318         u32 minimum;
 319         u32 maximum;
 320         u32 translation_offset;
 321         u32 address_length;
 322 };
 323
 324 struct acpi_address64_attribute {
 325         u64 granularity;
 326         u64 minimum;
 327         u64 maximum;
 328         u64 translation_offset;
 329         u64 address_length;
 330 };
 331
 332 struct acpi_resource_address {
 333 ACPI_RESOURCE_ADDRESS_COMMON};
 334
 335 struct acpi_resource_address16 {
 336         ACPI_RESOURCE_ADDRESS_COMMON struct acpi_address16_attribute address;
 337         struct acpi_resource_source resource_source;
 338 };
 339
 340 struct acpi_resource_address32 {
 341         ACPI_RESOURCE_ADDRESS_COMMON struct acpi_address32_attribute address;
 342         struct acpi_resource_source resource_source;
 343 };
 344
 345 struct acpi_resource_address64 {
 346         ACPI_RESOURCE_ADDRESS_COMMON struct acpi_address64_attribute address;
 347         struct acpi_resource_source resource_source;
 348 };
 349
 350 struct acpi_resource_extended_address64 {
 351         ACPI_RESOURCE_ADDRESS_COMMON u8 revision_ID;
 352         struct acpi_address64_attribute address;
 353         u64 type_specific;
 354 };
 355
 356 struct acpi_resource_extended_irq {
 357         u8 producer_consumer;
 358         u8 triggering;
 359         u8 polarity;
 360         u8 sharable;
 361         u8 wake_capable;
 362         u8 interrupt_count;
 363         struct acpi_resource_source resource_source;
 364         u32 interrupts[1];
 365 };
 366
 367 struct acpi_resource_generic_register {
 368         u8 space_id;
 369         u8 bit_width;
 370         u8 bit_offset;
 371         u8 access_size;
 372         u64 address;
 373 };
 374
 375 struct acpi_resource_gpio {
 376         u8 revision_id;
 377         u8 connection_type;
 378         u8 producer_consumer;   /* For values, see Producer/Consumer above */
 379         u8 pin_config;
 380         u8 sharable;            /* For values, see Interrupt Attributes above */
 381         u8 wake_capable;        /* For values, see Interrupt Attributes above */
 382         u8 io_restriction;
 383         u8 triggering;          /* For values, see Interrupt Attributes above */
 384         u8 polarity;            /* For values, see Interrupt Attributes above */
 385         u16 drive_strength;
 386         u16 debounce_timeout;
 387         u16 pin_table_length;
 388         u16 vendor_length;
 389         struct acpi_resource_source resource_source;
 390         u16 *pin_table;
 391         u8 *vendor_data;
 392 };
 393
 394 /* Values for GPIO connection_type field above */
 395
 396 #define ACPI_RESOURCE_GPIO_TYPE_INT             0
 397 #define ACPI_RESOURCE_GPIO_TYPE_IO              1
 398
 399 /* Values for pin_config field above */
 400
 401 #define ACPI_PIN_CONFIG_DEFAULT                 0
 402 #define ACPI_PIN_CONFIG_PULLUP                  1
 403 #define ACPI_PIN_CONFIG_PULLDOWN                2
 404 #define ACPI_PIN_CONFIG_NOPULL                  3
 405
 406 /* Values for io_restriction field above */
 407
 408 #define ACPI_IO_RESTRICT_NONE                   0
 409 #define ACPI_IO_RESTRICT_INPUT                  1
 410 #define ACPI_IO_RESTRICT_OUTPUT                 2
 411 #define ACPI_IO_RESTRICT_NONE_PRESERVE          3
 412
 413 /* Common structure for I2C, SPI, and UART serial descriptors */
 414
 415 #define ACPI_RESOURCE_SERIAL_COMMON \
 416         u8                                      revision_id; \
 417         u8                                      type; \
 418         u8                                      producer_consumer;   /* For values, see Producer/Consumer above */\
 419         u8                                      slave_mode; \
 420         u8                                      type_revision_id; \
 421         u16                                     type_data_length; \
 422         u16                                     vendor_length; \
 423         struct acpi_resource_source             resource_source; \
 424         u8                                      *vendor_data;
 425
 426 struct acpi_resource_common_serialbus {
 427 ACPI_RESOURCE_SERIAL_COMMON};
 428
 429 /* Values for the Type field above */
 430
 431 #define ACPI_RESOURCE_SERIAL_TYPE_I2C           1
 432 #define ACPI_RESOURCE_SERIAL_TYPE_SPI           2
 433 #define ACPI_RESOURCE_SERIAL_TYPE_UART          3
 434
 435 /* Values for slave_mode field above */
 436
 437 #define ACPI_CONTROLLER_INITIATED               0
 438 #define ACPI_DEVICE_INITIATED                   1
 439
 440 struct acpi_resource_i2c_serialbus {
 441         ACPI_RESOURCE_SERIAL_COMMON u8 access_mode;
 442         u16 slave_address;
 443         u32 connection_speed;
 444 };
 445
 446 /* Values for access_mode field above */
 447
 448 #define ACPI_I2C_7BIT_MODE                      0
 449 #define ACPI_I2C_10BIT_MODE                     1
 450
 451 struct acpi_resource_spi_serialbus {
 452         ACPI_RESOURCE_SERIAL_COMMON u8 wire_mode;
 453         u8 device_polarity;
 454         u8 data_bit_length;
 455         u8 clock_phase;
 456         u8 clock_polarity;
 457         u16 device_selection;
 458         u32 connection_speed;
 459 };
 460
 461 /* Values for wire_mode field above */
 462
 463 #define ACPI_SPI_4WIRE_MODE                     0
 464 #define ACPI_SPI_3WIRE_MODE                     1
 465
 466 /* Values for device_polarity field above */
 467
 468 #define ACPI_SPI_ACTIVE_LOW                     0
 469 #define ACPI_SPI_ACTIVE_HIGH                    1
 470
 471 /* Values for clock_phase field above */
 472
 473 #define ACPI_SPI_FIRST_PHASE                    0
 474 #define ACPI_SPI_SECOND_PHASE                   1
 475
 476 /* Values for clock_polarity field above */
 477
 478 #define ACPI_SPI_START_LOW                      0
 479 #define ACPI_SPI_START_HIGH                     1
 480
 481 struct acpi_resource_uart_serialbus {
 482         ACPI_RESOURCE_SERIAL_COMMON u8 endian;
 483         u8 data_bits;
 484         u8 stop_bits;
 485         u8 flow_control;
 486         u8 parity;
 487         u8 lines_enabled;
 488         u16 rx_fifo_size;
 489         u16 tx_fifo_size;
 490         u32 default_baud_rate;
 491 };
 492
 493 /* Values for Endian field above */
 494
 495 #define ACPI_UART_LITTLE_ENDIAN                 0
 496 #define ACPI_UART_BIG_ENDIAN                    1
 497
 498 /* Values for data_bits field above */
 499
 500 #define ACPI_UART_5_DATA_BITS                   0
 501 #define ACPI_UART_6_DATA_BITS                   1
 502 #define ACPI_UART_7_DATA_BITS                   2
 503 #define ACPI_UART_8_DATA_BITS                   3
 504 #define ACPI_UART_9_DATA_BITS                   4
 505
 506 /* Values for stop_bits field above */
 507
 508 #define ACPI_UART_NO_STOP_BITS                  0
 509 #define ACPI_UART_1_STOP_BIT                    1
 510 #define ACPI_UART_1P5_STOP_BITS                 2
 511 #define ACPI_UART_2_STOP_BITS                   3
 512
 513 /* Values for flow_control field above */
 514
 515 #define ACPI_UART_FLOW_CONTROL_NONE             0
 516 #define ACPI_UART_FLOW_CONTROL_HW               1
 517 #define ACPI_UART_FLOW_CONTROL_XON_XOFF         2
 518
 519 /* Values for Parity field above */
 520
 521 #define ACPI_UART_PARITY_NONE                   0
 522 #define ACPI_UART_PARITY_EVEN                   1
 523 #define ACPI_UART_PARITY_ODD                    2
 524 #define ACPI_UART_PARITY_MARK                   3
 525 #define ACPI_UART_PARITY_SPACE                  4
 526
 527 /* Values for lines_enabled bitfield above */
 528
 529 #define ACPI_UART_CARRIER_DETECT                (1<<2)
 530 #define ACPI_UART_RING_INDICATOR                (1<<3)
 531 #define ACPI_UART_DATA_SET_READY                (1<<4)
 532 #define ACPI_UART_DATA_TERMINAL_READY           (1<<5)
 533 #define ACPI_UART_CLEAR_TO_SEND                 (1<<6)
 534 #define ACPI_UART_REQUEST_TO_SEND               (1<<7)
 535
 536 /* ACPI_RESOURCE_TYPEs */
 537
 538 #define ACPI_RESOURCE_TYPE_IRQ                  0
 539 #define ACPI_RESOURCE_TYPE_DMA                  1
 540 #define ACPI_RESOURCE_TYPE_START_DEPENDENT      2
 541 #define ACPI_RESOURCE_TYPE_END_DEPENDENT        3
 542 #define ACPI_RESOURCE_TYPE_IO                   4
 543 #define ACPI_RESOURCE_TYPE_FIXED_IO             5
 544 #define ACPI_RESOURCE_TYPE_VENDOR               6
 545 #define ACPI_RESOURCE_TYPE_END_TAG              7
 546 #define ACPI_RESOURCE_TYPE_MEMORY24             8
 547 #define ACPI_RESOURCE_TYPE_MEMORY32             9
 548 #define ACPI_RESOURCE_TYPE_FIXED_MEMORY32       10
 549 #define ACPI_RESOURCE_TYPE_ADDRESS16            11
 550 #define ACPI_RESOURCE_TYPE_ADDRESS32            12
 551 #define ACPI_RESOURCE_TYPE_ADDRESS64            13
 552 #define ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64   14      /* ACPI 3.0 */
 553 #define ACPI_RESOURCE_TYPE_EXTENDED_IRQ         15
 554 #define ACPI_RESOURCE_TYPE_GENERIC_REGISTER     16
 555 #define ACPI_RESOURCE_TYPE_GPIO                 17      /* ACPI 5.0 */
 556 #define ACPI_RESOURCE_TYPE_FIXED_DMA            18      /* ACPI 5.0 */
 557 #define ACPI_RESOURCE_TYPE_SERIAL_BUS           19      /* ACPI 5.0 */
 558 #define ACPI_RESOURCE_TYPE_MAX                  19
 559
 560 /* Master union for resource descriptors */
 561
 562 union acpi_resource_data {
 563         struct acpi_resource_irq irq;
 564         struct acpi_resource_dma dma;
 565         struct acpi_resource_start_dependent start_dpf;
 566         struct acpi_resource_io io;
 567         struct acpi_resource_fixed_io fixed_io;
 568         struct acpi_resource_fixed_dma fixed_dma;
 569         struct acpi_resource_vendor vendor;
 570         struct acpi_resource_vendor_typed vendor_typed;
 571         struct acpi_resource_end_tag end_tag;
 572         struct acpi_resource_memory24 memory24;
 573         struct acpi_resource_memory32 memory32;
 574         struct acpi_resource_fixed_memory32 fixed_memory32;
 575         struct acpi_resource_address16 address16;
 576         struct acpi_resource_address32 address32;
 577         struct acpi_resource_address64 address64;
 578         struct acpi_resource_extended_address64 ext_address64;
 579         struct acpi_resource_extended_irq extended_irq;
 580         struct acpi_resource_generic_register generic_reg;
 581         struct acpi_resource_gpio gpio;
 582         struct acpi_resource_i2c_serialbus i2c_serial_bus;
 583         struct acpi_resource_spi_serialbus spi_serial_bus;
 584         struct acpi_resource_uart_serialbus uart_serial_bus;
 585         struct acpi_resource_common_serialbus common_serial_bus;
 586
 587         /* Common fields */
 588
 589         struct acpi_resource_address address;   /* Common 16/32/64 address fields */
 590 };
 591
 592 /* Common resource header */
 593
 594 struct acpi_resource {
 595         u32 type;
 596         u32 length;
 597         union acpi_resource_data data;
 598 };
 599
 600 /* restore default alignment */
 601
 602 #pragma pack()
 603
 604 #define ACPI_RS_SIZE_NO_DATA                8   /* Id + Length fields */
 605 #define ACPI_RS_SIZE_MIN                    (u32) ACPI_ROUND_UP_TO_NATIVE_WORD (12)
 606 #define ACPI_RS_SIZE(type)                  (u32) (ACPI_RS_SIZE_NO_DATA + sizeof (type))
 607
 608 /* Macro for walking resource templates with multiple descriptors */
 609
 610 #define ACPI_NEXT_RESOURCE(res) \
 611         ACPI_ADD_PTR (struct acpi_resource, (res), (res)->length)
 612
 613 struct acpi_pci_routing_table {
 614         u32 length;
 615         u32 pin;
 616         u64 address;            /* here for 64-bit alignment */
 617         u32 source_index;
 618         char source[4];         /* pad to 64 bits so sizeof() works in all cases */
 619 };
 620
 621 #endif                          /* __ACRESTYP_H__ */