root/drivers/acpi/acpica/amlresrc.h

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   1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
   2 /******************************************************************************
   3  *
   4  * Module Name: amlresrc.h - AML resource descriptors
   5  *
   6  * Copyright (C) 2000 - 2019, Intel Corp.
   7  *
   8  *****************************************************************************/
   9 
  10 /* acpisrc:struct_defs -- for acpisrc conversion */
  11 
  12 #ifndef __AMLRESRC_H
  13 #define __AMLRESRC_H
  14 
  15 /*
  16  * Resource descriptor tags, as defined in the ACPI specification.
  17  * Used to symbolically reference fields within a descriptor.
  18  */
  19 #define ACPI_RESTAG_ADDRESS                     "_ADR"
  20 #define ACPI_RESTAG_ALIGNMENT                   "_ALN"
  21 #define ACPI_RESTAG_ADDRESSSPACE                "_ASI"
  22 #define ACPI_RESTAG_ACCESSSIZE                  "_ASZ"
  23 #define ACPI_RESTAG_TYPESPECIFICATTRIBUTES      "_ATT"
  24 #define ACPI_RESTAG_BASEADDRESS                 "_BAS"
  25 #define ACPI_RESTAG_BUSMASTER                   "_BM_"  /* Master(1), Slave(0) */
  26 #define ACPI_RESTAG_DEBOUNCETIME                "_DBT"
  27 #define ACPI_RESTAG_DECODE                      "_DEC"
  28 #define ACPI_RESTAG_DEVICEPOLARITY              "_DPL"
  29 #define ACPI_RESTAG_DMA                         "_DMA"
  30 #define ACPI_RESTAG_DMATYPE                     "_TYP"  /* Compatible(0), A(1), B(2), F(3) */
  31 #define ACPI_RESTAG_DRIVESTRENGTH               "_DRS"
  32 #define ACPI_RESTAG_ENDIANNESS                  "_END"
  33 #define ACPI_RESTAG_FLOWCONTROL                 "_FLC"
  34 #define ACPI_RESTAG_FUNCTION                    "_FUN"
  35 #define ACPI_RESTAG_GRANULARITY                 "_GRA"
  36 #define ACPI_RESTAG_INTERRUPT                   "_INT"
  37 #define ACPI_RESTAG_INTERRUPTLEVEL              "_LL_"  /* active_lo(1), active_hi(0) */
  38 #define ACPI_RESTAG_INTERRUPTSHARE              "_SHR"  /* Shareable(1), no_share(0) */
  39 #define ACPI_RESTAG_INTERRUPTTYPE               "_HE_"  /* Edge(1), Level(0) */
  40 #define ACPI_RESTAG_IORESTRICTION               "_IOR"
  41 #define ACPI_RESTAG_LENGTH                      "_LEN"
  42 #define ACPI_RESTAG_LINE                        "_LIN"
  43 #define ACPI_RESTAG_MEMATTRIBUTES               "_MTP"  /* Memory(0), Reserved(1), ACPI(2), NVS(3) */
  44 #define ACPI_RESTAG_MEMTYPE                     "_MEM"  /* non_cache(0), Cacheable(1) Cache+combine(2), Cache+prefetch(3) */
  45 #define ACPI_RESTAG_MAXADDR                     "_MAX"
  46 #define ACPI_RESTAG_MINADDR                     "_MIN"
  47 #define ACPI_RESTAG_MAXTYPE                     "_MAF"
  48 #define ACPI_RESTAG_MINTYPE                     "_MIF"
  49 #define ACPI_RESTAG_MODE                        "_MOD"
  50 #define ACPI_RESTAG_PARITY                      "_PAR"
  51 #define ACPI_RESTAG_PHASE                       "_PHA"
  52 #define ACPI_RESTAG_PIN                         "_PIN"
  53 #define ACPI_RESTAG_PINCONFIG                   "_PPI"
  54 #define ACPI_RESTAG_PINCONFIG_TYPE              "_TYP"
  55 #define ACPI_RESTAG_PINCONFIG_VALUE             "_VAL"
  56 #define ACPI_RESTAG_POLARITY                    "_POL"
  57 #define ACPI_RESTAG_REGISTERBITOFFSET           "_RBO"
  58 #define ACPI_RESTAG_REGISTERBITWIDTH            "_RBW"
  59 #define ACPI_RESTAG_RANGETYPE                   "_RNG"
  60 #define ACPI_RESTAG_READWRITETYPE               "_RW_"  /* read_only(0), Writeable (1) */
  61 #define ACPI_RESTAG_LENGTH_RX                   "_RXL"
  62 #define ACPI_RESTAG_LENGTH_TX                   "_TXL"
  63 #define ACPI_RESTAG_SLAVEMODE                   "_SLV"
  64 #define ACPI_RESTAG_SPEED                       "_SPE"
  65 #define ACPI_RESTAG_STOPBITS                    "_STB"
  66 #define ACPI_RESTAG_TRANSLATION                 "_TRA"
  67 #define ACPI_RESTAG_TRANSTYPE                   "_TRS"  /* Sparse(1), Dense(0) */
  68 #define ACPI_RESTAG_TYPE                        "_TTP"  /* Translation(1), Static (0) */
  69 #define ACPI_RESTAG_XFERTYPE                    "_SIZ"  /* 8(0), 8And16(1), 16(2) */
  70 #define ACPI_RESTAG_VENDORDATA                  "_VEN"
  71 
  72 /* Default sizes for "small" resource descriptors */
  73 
  74 #define ASL_RDESC_IRQ_SIZE                      0x02
  75 #define ASL_RDESC_DMA_SIZE                      0x02
  76 #define ASL_RDESC_ST_DEPEND_SIZE                0x00
  77 #define ASL_RDESC_END_DEPEND_SIZE               0x00
  78 #define ASL_RDESC_IO_SIZE                       0x07
  79 #define ASL_RDESC_FIXED_IO_SIZE                 0x03
  80 #define ASL_RDESC_FIXED_DMA_SIZE                0x05
  81 #define ASL_RDESC_END_TAG_SIZE                  0x01
  82 
  83 struct asl_resource_node {
  84         u32 buffer_length;
  85         void *buffer;
  86         struct asl_resource_node *next;
  87 };
  88 
  89 struct asl_resource_info {
  90         union acpi_parse_object *descriptor_type_op;    /* Resource descriptor parse node */
  91         union acpi_parse_object *mapping_op;    /* Used for mapfile support */
  92         u32 current_byte_offset;        /* Offset in resource template */
  93 };
  94 
  95 /* Macros used to generate AML resource length fields */
  96 
  97 #define ACPI_AML_SIZE_LARGE(r)      (sizeof (r) - sizeof (struct aml_resource_large_header))
  98 #define ACPI_AML_SIZE_SMALL(r)      (sizeof (r) - sizeof (struct aml_resource_small_header))
  99 
 100 /*
 101  * Resource descriptors defined in the ACPI specification.
 102  *
 103  * Packing/alignment must be BYTE because these descriptors
 104  * are used to overlay the raw AML byte stream.
 105  */
 106 #pragma pack(1)
 107 
 108 /*
 109  * SMALL descriptors
 110  */
 111 #define AML_RESOURCE_SMALL_HEADER_COMMON \
 112         u8                              descriptor_type;
 113 
 114 struct aml_resource_small_header {
 115 AML_RESOURCE_SMALL_HEADER_COMMON};
 116 
 117 struct aml_resource_irq {
 118         AML_RESOURCE_SMALL_HEADER_COMMON u16 irq_mask;
 119         u8 flags;
 120 };
 121 
 122 struct aml_resource_irq_noflags {
 123         AML_RESOURCE_SMALL_HEADER_COMMON u16 irq_mask;
 124 };
 125 
 126 struct aml_resource_dma {
 127         AML_RESOURCE_SMALL_HEADER_COMMON u8 dma_channel_mask;
 128         u8 flags;
 129 };
 130 
 131 struct aml_resource_start_dependent {
 132         AML_RESOURCE_SMALL_HEADER_COMMON u8 flags;
 133 };
 134 
 135 struct aml_resource_start_dependent_noprio {
 136 AML_RESOURCE_SMALL_HEADER_COMMON};
 137 
 138 struct aml_resource_end_dependent {
 139 AML_RESOURCE_SMALL_HEADER_COMMON};
 140 
 141 struct aml_resource_io {
 142         AML_RESOURCE_SMALL_HEADER_COMMON u8 flags;
 143         u16 minimum;
 144         u16 maximum;
 145         u8 alignment;
 146         u8 address_length;
 147 };
 148 
 149 struct aml_resource_fixed_io {
 150         AML_RESOURCE_SMALL_HEADER_COMMON u16 address;
 151         u8 address_length;
 152 };
 153 
 154 struct aml_resource_vendor_small {
 155 AML_RESOURCE_SMALL_HEADER_COMMON};
 156 
 157 struct aml_resource_end_tag {
 158         AML_RESOURCE_SMALL_HEADER_COMMON u8 checksum;
 159 };
 160 
 161 struct aml_resource_fixed_dma {
 162         AML_RESOURCE_SMALL_HEADER_COMMON u16 request_lines;
 163         u16 channels;
 164         u8 width;
 165 };
 166 
 167 /*
 168  * LARGE descriptors
 169  */
 170 #define AML_RESOURCE_LARGE_HEADER_COMMON \
 171         u8                              descriptor_type;\
 172         u16                             resource_length;
 173 
 174 struct aml_resource_large_header {
 175 AML_RESOURCE_LARGE_HEADER_COMMON};
 176 
 177 /* General Flags for address space resource descriptors */
 178 
 179 #define ACPI_RESOURCE_FLAG_DEC      2
 180 #define ACPI_RESOURCE_FLAG_MIF      4
 181 #define ACPI_RESOURCE_FLAG_MAF      8
 182 
 183 struct aml_resource_memory24 {
 184         AML_RESOURCE_LARGE_HEADER_COMMON u8 flags;
 185         u16 minimum;
 186         u16 maximum;
 187         u16 alignment;
 188         u16 address_length;
 189 };
 190 
 191 struct aml_resource_vendor_large {
 192 AML_RESOURCE_LARGE_HEADER_COMMON};
 193 
 194 struct aml_resource_memory32 {
 195         AML_RESOURCE_LARGE_HEADER_COMMON u8 flags;
 196         u32 minimum;
 197         u32 maximum;
 198         u32 alignment;
 199         u32 address_length;
 200 };
 201 
 202 struct aml_resource_fixed_memory32 {
 203         AML_RESOURCE_LARGE_HEADER_COMMON u8 flags;
 204         u32 address;
 205         u32 address_length;
 206 };
 207 
 208 #define AML_RESOURCE_ADDRESS_COMMON \
 209         u8                              resource_type; \
 210         u8                              flags; \
 211         u8                              specific_flags;
 212 
 213 struct aml_resource_address {
 214 AML_RESOURCE_LARGE_HEADER_COMMON AML_RESOURCE_ADDRESS_COMMON};
 215 
 216 struct aml_resource_extended_address64 {
 217         AML_RESOURCE_LARGE_HEADER_COMMON
 218             AML_RESOURCE_ADDRESS_COMMON u8 revision_ID;
 219         u8 reserved;
 220         u64 granularity;
 221         u64 minimum;
 222         u64 maximum;
 223         u64 translation_offset;
 224         u64 address_length;
 225         u64 type_specific;
 226 };
 227 
 228 #define AML_RESOURCE_EXTENDED_ADDRESS_REVISION          1       /* ACPI 3.0 */
 229 
 230 struct aml_resource_address64 {
 231         AML_RESOURCE_LARGE_HEADER_COMMON
 232             AML_RESOURCE_ADDRESS_COMMON u64 granularity;
 233         u64 minimum;
 234         u64 maximum;
 235         u64 translation_offset;
 236         u64 address_length;
 237 };
 238 
 239 struct aml_resource_address32 {
 240         AML_RESOURCE_LARGE_HEADER_COMMON
 241             AML_RESOURCE_ADDRESS_COMMON u32 granularity;
 242         u32 minimum;
 243         u32 maximum;
 244         u32 translation_offset;
 245         u32 address_length;
 246 };
 247 
 248 struct aml_resource_address16 {
 249         AML_RESOURCE_LARGE_HEADER_COMMON
 250             AML_RESOURCE_ADDRESS_COMMON u16 granularity;
 251         u16 minimum;
 252         u16 maximum;
 253         u16 translation_offset;
 254         u16 address_length;
 255 };
 256 
 257 struct aml_resource_extended_irq {
 258         AML_RESOURCE_LARGE_HEADER_COMMON u8 flags;
 259         u8 interrupt_count;
 260         u32 interrupts[1];
 261         /* res_source_index, res_source optional fields follow */
 262 };
 263 
 264 struct aml_resource_generic_register {
 265         AML_RESOURCE_LARGE_HEADER_COMMON u8 address_space_id;
 266         u8 bit_width;
 267         u8 bit_offset;
 268         u8 access_size;         /* ACPI 3.0, was previously Reserved */
 269         u64 address;
 270 };
 271 
 272 /* Common descriptor for gpio_int and gpio_io (ACPI 5.0) */
 273 
 274 struct aml_resource_gpio {
 275         AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id;
 276         u8 connection_type;
 277         u16 flags;
 278         u16 int_flags;
 279         u8 pin_config;
 280         u16 drive_strength;
 281         u16 debounce_timeout;
 282         u16 pin_table_offset;
 283         u8 res_source_index;
 284         u16 res_source_offset;
 285         u16 vendor_offset;
 286         u16 vendor_length;
 287         /*
 288          * Optional fields follow immediately:
 289          * 1) PIN list (Words)
 290          * 2) Resource Source String
 291          * 3) Vendor Data bytes
 292          */
 293 };
 294 
 295 #define AML_RESOURCE_GPIO_REVISION              1       /* ACPI 5.0 */
 296 
 297 /* Values for connection_type above */
 298 
 299 #define AML_RESOURCE_GPIO_TYPE_INT              0
 300 #define AML_RESOURCE_GPIO_TYPE_IO               1
 301 #define AML_RESOURCE_MAX_GPIOTYPE               1
 302 
 303 /* Common preamble for all serial descriptors (ACPI 5.0) */
 304 
 305 #define AML_RESOURCE_SERIAL_COMMON \
 306         u8                              revision_id; \
 307         u8                              res_source_index; \
 308         u8                              type; \
 309         u8                              flags; \
 310         u16                             type_specific_flags; \
 311         u8                              type_revision_id; \
 312         u16                             type_data_length; \
 313 
 314 /* Values for the type field above */
 315 
 316 #define AML_RESOURCE_I2C_SERIALBUSTYPE          1
 317 #define AML_RESOURCE_SPI_SERIALBUSTYPE          2
 318 #define AML_RESOURCE_UART_SERIALBUSTYPE         3
 319 #define AML_RESOURCE_MAX_SERIALBUSTYPE          3
 320 #define AML_RESOURCE_VENDOR_SERIALBUSTYPE       192     /* Vendor defined is 0xC0-0xFF (NOT SUPPORTED) */
 321 
 322 struct aml_resource_common_serialbus {
 323 AML_RESOURCE_LARGE_HEADER_COMMON AML_RESOURCE_SERIAL_COMMON};
 324 
 325 struct aml_resource_i2c_serialbus {
 326         AML_RESOURCE_LARGE_HEADER_COMMON
 327             AML_RESOURCE_SERIAL_COMMON u32 connection_speed;
 328         u16 slave_address;
 329         /*
 330          * Optional fields follow immediately:
 331          * 1) Vendor Data bytes
 332          * 2) Resource Source String
 333          */
 334 };
 335 
 336 #define AML_RESOURCE_I2C_REVISION               1       /* ACPI 5.0 */
 337 #define AML_RESOURCE_I2C_TYPE_REVISION          1       /* ACPI 5.0 */
 338 #define AML_RESOURCE_I2C_MIN_DATA_LEN           6
 339 
 340 struct aml_resource_spi_serialbus {
 341         AML_RESOURCE_LARGE_HEADER_COMMON
 342             AML_RESOURCE_SERIAL_COMMON u32 connection_speed;
 343         u8 data_bit_length;
 344         u8 clock_phase;
 345         u8 clock_polarity;
 346         u16 device_selection;
 347         /*
 348          * Optional fields follow immediately:
 349          * 1) Vendor Data bytes
 350          * 2) Resource Source String
 351          */
 352 };
 353 
 354 #define AML_RESOURCE_SPI_REVISION               1       /* ACPI 5.0 */
 355 #define AML_RESOURCE_SPI_TYPE_REVISION          1       /* ACPI 5.0 */
 356 #define AML_RESOURCE_SPI_MIN_DATA_LEN           9
 357 
 358 struct aml_resource_uart_serialbus {
 359         AML_RESOURCE_LARGE_HEADER_COMMON
 360             AML_RESOURCE_SERIAL_COMMON u32 default_baud_rate;
 361         u16 rx_fifo_size;
 362         u16 tx_fifo_size;
 363         u8 parity;
 364         u8 lines_enabled;
 365         /*
 366          * Optional fields follow immediately:
 367          * 1) Vendor Data bytes
 368          * 2) Resource Source String
 369          */
 370 };
 371 
 372 #define AML_RESOURCE_UART_REVISION              1       /* ACPI 5.0 */
 373 #define AML_RESOURCE_UART_TYPE_REVISION         1       /* ACPI 5.0 */
 374 #define AML_RESOURCE_UART_MIN_DATA_LEN          10
 375 
 376 struct aml_resource_pin_function {
 377         AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id;
 378         u16 flags;
 379         u8 pin_config;
 380         u16 function_number;
 381         u16 pin_table_offset;
 382         u8 res_source_index;
 383         u16 res_source_offset;
 384         u16 vendor_offset;
 385         u16 vendor_length;
 386         /*
 387          * Optional fields follow immediately:
 388          * 1) PIN list (Words)
 389          * 2) Resource Source String
 390          * 3) Vendor Data bytes
 391          */
 392 };
 393 
 394 #define AML_RESOURCE_PIN_FUNCTION_REVISION      1       /* ACPI 6.2 */
 395 
 396 struct aml_resource_pin_config {
 397         AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id;
 398         u16 flags;
 399         u8 pin_config_type;
 400         u32 pin_config_value;
 401         u16 pin_table_offset;
 402         u8 res_source_index;
 403         u16 res_source_offset;
 404         u16 vendor_offset;
 405         u16 vendor_length;
 406         /*
 407          * Optional fields follow immediately:
 408          * 1) PIN list (Words)
 409          * 2) Resource Source String
 410          * 3) Vendor Data bytes
 411          */
 412 };
 413 
 414 #define AML_RESOURCE_PIN_CONFIG_REVISION      1 /* ACPI 6.2 */
 415 
 416 struct aml_resource_pin_group {
 417         AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id;
 418         u16 flags;
 419         u16 pin_table_offset;
 420         u16 label_offset;
 421         u16 vendor_offset;
 422         u16 vendor_length;
 423         /*
 424          * Optional fields follow immediately:
 425          * 1) PIN list (Words)
 426          * 2) Resource Label String
 427          * 3) Vendor Data bytes
 428          */
 429 };
 430 
 431 #define AML_RESOURCE_PIN_GROUP_REVISION      1  /* ACPI 6.2 */
 432 
 433 struct aml_resource_pin_group_function {
 434         AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id;
 435         u16 flags;
 436         u16 function_number;
 437         u8 res_source_index;
 438         u16 res_source_offset;
 439         u16 res_source_label_offset;
 440         u16 vendor_offset;
 441         u16 vendor_length;
 442         /*
 443          * Optional fields follow immediately:
 444          * 1) Resource Source String
 445          * 2) Resource Source Label String
 446          * 3) Vendor Data bytes
 447          */
 448 };
 449 
 450 #define AML_RESOURCE_PIN_GROUP_FUNCTION_REVISION    1   /* ACPI 6.2 */
 451 
 452 struct aml_resource_pin_group_config {
 453         AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id;
 454         u16 flags;
 455         u8 pin_config_type;
 456         u32 pin_config_value;
 457         u8 res_source_index;
 458         u16 res_source_offset;
 459         u16 res_source_label_offset;
 460         u16 vendor_offset;
 461         u16 vendor_length;
 462         /*
 463          * Optional fields follow immediately:
 464          * 1) Resource Source String
 465          * 2) Resource Source Label String
 466          * 3) Vendor Data bytes
 467          */
 468 };
 469 
 470 #define AML_RESOURCE_PIN_GROUP_CONFIG_REVISION    1     /* ACPI 6.2 */
 471 
 472 /* restore default alignment */
 473 
 474 #pragma pack()
 475 
 476 /* Union of all resource descriptors, so we can allocate the worst case */
 477 
 478 union aml_resource {
 479         /* Descriptor headers */
 480 
 481         u8 descriptor_type;
 482         struct aml_resource_small_header small_header;
 483         struct aml_resource_large_header large_header;
 484 
 485         /* Small resource descriptors */
 486 
 487         struct aml_resource_irq irq;
 488         struct aml_resource_dma dma;
 489         struct aml_resource_start_dependent start_dpf;
 490         struct aml_resource_end_dependent end_dpf;
 491         struct aml_resource_io io;
 492         struct aml_resource_fixed_io fixed_io;
 493         struct aml_resource_fixed_dma fixed_dma;
 494         struct aml_resource_vendor_small vendor_small;
 495         struct aml_resource_end_tag end_tag;
 496 
 497         /* Large resource descriptors */
 498 
 499         struct aml_resource_memory24 memory24;
 500         struct aml_resource_generic_register generic_reg;
 501         struct aml_resource_vendor_large vendor_large;
 502         struct aml_resource_memory32 memory32;
 503         struct aml_resource_fixed_memory32 fixed_memory32;
 504         struct aml_resource_address16 address16;
 505         struct aml_resource_address32 address32;
 506         struct aml_resource_address64 address64;
 507         struct aml_resource_extended_address64 ext_address64;
 508         struct aml_resource_extended_irq extended_irq;
 509         struct aml_resource_gpio gpio;
 510         struct aml_resource_i2c_serialbus i2c_serial_bus;
 511         struct aml_resource_spi_serialbus spi_serial_bus;
 512         struct aml_resource_uart_serialbus uart_serial_bus;
 513         struct aml_resource_common_serialbus common_serial_bus;
 514         struct aml_resource_pin_function pin_function;
 515         struct aml_resource_pin_config pin_config;
 516         struct aml_resource_pin_group pin_group;
 517         struct aml_resource_pin_group_function pin_group_function;
 518         struct aml_resource_pin_group_config pin_group_config;
 519 
 520         /* Utility overlays */
 521 
 522         struct aml_resource_address address;
 523         u32 dword_item;
 524         u16 word_item;
 525         u8 byte_item;
 526 };
 527 
 528 /* Interfaces used by both the disassembler and compiler */
 529 
 530 void
 531 mp_save_gpio_info(union acpi_parse_object *op,
 532                   union aml_resource *resource,
 533                   u32 pin_count, u16 *pin_list, char *device_name);
 534 
 535 void
 536 mp_save_serial_info(union acpi_parse_object *op,
 537                     union aml_resource *resource, char *device_name);
 538 
 539 char *mp_get_hid_from_parse_tree(struct acpi_namespace_node *hid_node);
 540 
 541 char *mp_get_hid_via_namestring(char *device_name);
 542 
 543 char *mp_get_connection_info(union acpi_parse_object *op,
 544                              u32 pin_index,
 545                              struct acpi_namespace_node **target_node,
 546                              char **target_name);
 547 
 548 char *mp_get_parent_device_hid(union acpi_parse_object *op,
 549                                struct acpi_namespace_node **target_node,
 550                                char **parent_device_name);
 551 
 552 char *mp_get_ddn_value(char *device_name);
 553 
 554 char *mp_get_hid_value(struct acpi_namespace_node *device_node);
 555 
 556 #endif
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