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 - 2022, 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_LOCALPORT "_PRT" 44 #define ACPI_RESTAG_MEMATTRIBUTES "_MTP" /* Memory(0), Reserved(1), ACPI(2), NVS(3) */ 45 #define ACPI_RESTAG_MEMTYPE "_MEM" /* non_cache(0), Cacheable(1) Cache+combine(2), Cache+prefetch(3) */ 46 #define ACPI_RESTAG_MAXADDR "_MAX" 47 #define ACPI_RESTAG_MINADDR "_MIN" 48 #define ACPI_RESTAG_MAXTYPE "_MAF" 49 #define ACPI_RESTAG_MINTYPE "_MIF" 50 #define ACPI_RESTAG_MODE "_MOD" 51 #define ACPI_RESTAG_PARITY "_PAR" 52 #define ACPI_RESTAG_PHASE "_PHA" 53 #define ACPI_RESTAG_PHYTYPE "_PHY" 54 #define ACPI_RESTAG_PIN "_PIN" 55 #define ACPI_RESTAG_PINCONFIG "_PPI" 56 #define ACPI_RESTAG_PINCONFIG_TYPE "_TYP" 57 #define ACPI_RESTAG_PINCONFIG_VALUE "_VAL" 58 #define ACPI_RESTAG_POLARITY "_POL" 59 #define ACPI_RESTAG_REGISTERBITOFFSET "_RBO" 60 #define ACPI_RESTAG_REGISTERBITWIDTH "_RBW" 61 #define ACPI_RESTAG_RANGETYPE "_RNG" 62 #define ACPI_RESTAG_READWRITETYPE "_RW_" /* read_only(0), Writeable (1) */ 63 #define ACPI_RESTAG_LENGTH_RX "_RXL" 64 #define ACPI_RESTAG_LENGTH_TX "_TXL" 65 #define ACPI_RESTAG_SLAVEMODE "_SLV" 66 #define ACPI_RESTAG_SPEED "_SPE" 67 #define ACPI_RESTAG_STOPBITS "_STB" 68 #define ACPI_RESTAG_TRANSLATION "_TRA" 69 #define ACPI_RESTAG_TRANSTYPE "_TRS" /* Sparse(1), Dense(0) */ 70 #define ACPI_RESTAG_TYPE "_TTP" /* Translation(1), Static (0) */ 71 #define ACPI_RESTAG_XFERTYPE "_SIZ" /* 8(0), 8And16(1), 16(2) */ 72 #define ACPI_RESTAG_VENDORDATA "_VEN" 73 74 /* Default sizes for "small" resource descriptors */ 75 76 #define ASL_RDESC_IRQ_SIZE 0x02 77 #define ASL_RDESC_DMA_SIZE 0x02 78 #define ASL_RDESC_ST_DEPEND_SIZE 0x00 79 #define ASL_RDESC_END_DEPEND_SIZE 0x00 80 #define ASL_RDESC_IO_SIZE 0x07 81 #define ASL_RDESC_FIXED_IO_SIZE 0x03 82 #define ASL_RDESC_FIXED_DMA_SIZE 0x05 83 #define ASL_RDESC_END_TAG_SIZE 0x01 84 85 struct asl_resource_node { 86 u32 buffer_length; 87 void *buffer; 88 struct asl_resource_node *next; 89 }; 90 91 struct asl_resource_info { 92 union acpi_parse_object *descriptor_type_op; /* Resource descriptor parse node */ 93 union acpi_parse_object *mapping_op; /* Used for mapfile support */ 94 u32 current_byte_offset; /* Offset in resource template */ 95 }; 96 97 /* Macros used to generate AML resource length fields */ 98 99 #define ACPI_AML_SIZE_LARGE(r) (sizeof (r) - sizeof (struct aml_resource_large_header)) 100 #define ACPI_AML_SIZE_SMALL(r) (sizeof (r) - sizeof (struct aml_resource_small_header)) 101 102 /* 103 * Resource descriptors defined in the ACPI specification. 104 * 105 * Packing/alignment must be BYTE because these descriptors 106 * are used to overlay the raw AML byte stream. 107 */ 108 #pragma pack(1) 109 110 /* 111 * SMALL descriptors 112 */ 113 #define AML_RESOURCE_SMALL_HEADER_COMMON \ 114 u8 descriptor_type; 115 116 struct aml_resource_small_header { 117 AML_RESOURCE_SMALL_HEADER_COMMON}; 118 119 struct aml_resource_irq { 120 AML_RESOURCE_SMALL_HEADER_COMMON u16 irq_mask; 121 u8 flags; 122 }; 123 124 struct aml_resource_irq_noflags { 125 AML_RESOURCE_SMALL_HEADER_COMMON u16 irq_mask; 126 }; 127 128 struct aml_resource_dma { 129 AML_RESOURCE_SMALL_HEADER_COMMON u8 dma_channel_mask; 130 u8 flags; 131 }; 132 133 struct aml_resource_start_dependent { 134 AML_RESOURCE_SMALL_HEADER_COMMON u8 flags; 135 }; 136 137 struct aml_resource_start_dependent_noprio { 138 AML_RESOURCE_SMALL_HEADER_COMMON}; 139 140 struct aml_resource_end_dependent { 141 AML_RESOURCE_SMALL_HEADER_COMMON}; 142 143 struct aml_resource_io { 144 AML_RESOURCE_SMALL_HEADER_COMMON u8 flags; 145 u16 minimum; 146 u16 maximum; 147 u8 alignment; 148 u8 address_length; 149 }; 150 151 struct aml_resource_fixed_io { 152 AML_RESOURCE_SMALL_HEADER_COMMON u16 address; 153 u8 address_length; 154 }; 155 156 struct aml_resource_vendor_small { 157 AML_RESOURCE_SMALL_HEADER_COMMON}; 158 159 struct aml_resource_end_tag { 160 AML_RESOURCE_SMALL_HEADER_COMMON u8 checksum; 161 }; 162 163 struct aml_resource_fixed_dma { 164 AML_RESOURCE_SMALL_HEADER_COMMON u16 request_lines; 165 u16 channels; 166 u8 width; 167 }; 168 169 /* 170 * LARGE descriptors 171 */ 172 #define AML_RESOURCE_LARGE_HEADER_COMMON \ 173 u8 descriptor_type;\ 174 u16 resource_length; 175 176 struct aml_resource_large_header { 177 AML_RESOURCE_LARGE_HEADER_COMMON}; 178 179 /* General Flags for address space resource descriptors */ 180 181 #define ACPI_RESOURCE_FLAG_DEC 2 182 #define ACPI_RESOURCE_FLAG_MIF 4 183 #define ACPI_RESOURCE_FLAG_MAF 8 184 185 struct aml_resource_memory24 { 186 AML_RESOURCE_LARGE_HEADER_COMMON u8 flags; 187 u16 minimum; 188 u16 maximum; 189 u16 alignment; 190 u16 address_length; 191 }; 192 193 struct aml_resource_vendor_large { 194 AML_RESOURCE_LARGE_HEADER_COMMON}; 195 196 struct aml_resource_memory32 { 197 AML_RESOURCE_LARGE_HEADER_COMMON u8 flags; 198 u32 minimum; 199 u32 maximum; 200 u32 alignment; 201 u32 address_length; 202 }; 203 204 struct aml_resource_fixed_memory32 { 205 AML_RESOURCE_LARGE_HEADER_COMMON u8 flags; 206 u32 address; 207 u32 address_length; 208 }; 209 210 #define AML_RESOURCE_ADDRESS_COMMON \ 211 u8 resource_type; \ 212 u8 flags; \ 213 u8 specific_flags; 214 215 struct aml_resource_address { 216 AML_RESOURCE_LARGE_HEADER_COMMON AML_RESOURCE_ADDRESS_COMMON}; 217 218 struct aml_resource_extended_address64 { 219 AML_RESOURCE_LARGE_HEADER_COMMON 220 AML_RESOURCE_ADDRESS_COMMON u8 revision_ID; 221 u8 reserved; 222 u64 granularity; 223 u64 minimum; 224 u64 maximum; 225 u64 translation_offset; 226 u64 address_length; 227 u64 type_specific; 228 }; 229 230 #define AML_RESOURCE_EXTENDED_ADDRESS_REVISION 1 /* ACPI 3.0 */ 231 232 struct aml_resource_address64 { 233 AML_RESOURCE_LARGE_HEADER_COMMON 234 AML_RESOURCE_ADDRESS_COMMON u64 granularity; 235 u64 minimum; 236 u64 maximum; 237 u64 translation_offset; 238 u64 address_length; 239 }; 240 241 struct aml_resource_address32 { 242 AML_RESOURCE_LARGE_HEADER_COMMON 243 AML_RESOURCE_ADDRESS_COMMON u32 granularity; 244 u32 minimum; 245 u32 maximum; 246 u32 translation_offset; 247 u32 address_length; 248 }; 249 250 struct aml_resource_address16 { 251 AML_RESOURCE_LARGE_HEADER_COMMON 252 AML_RESOURCE_ADDRESS_COMMON u16 granularity; 253 u16 minimum; 254 u16 maximum; 255 u16 translation_offset; 256 u16 address_length; 257 }; 258 259 struct aml_resource_extended_irq { 260 AML_RESOURCE_LARGE_HEADER_COMMON u8 flags; 261 u8 interrupt_count; 262 u32 interrupts[1]; 263 /* res_source_index, res_source optional fields follow */ 264 }; 265 266 struct aml_resource_generic_register { 267 AML_RESOURCE_LARGE_HEADER_COMMON u8 address_space_id; 268 u8 bit_width; 269 u8 bit_offset; 270 u8 access_size; /* ACPI 3.0, was previously Reserved */ 271 u64 address; 272 }; 273 274 /* Common descriptor for gpio_int and gpio_io (ACPI 5.0) */ 275 276 struct aml_resource_gpio { 277 AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id; 278 u8 connection_type; 279 u16 flags; 280 u16 int_flags; 281 u8 pin_config; 282 u16 drive_strength; 283 u16 debounce_timeout; 284 u16 pin_table_offset; 285 u8 res_source_index; 286 u16 res_source_offset; 287 u16 vendor_offset; 288 u16 vendor_length; 289 /* 290 * Optional fields follow immediately: 291 * 1) PIN list (Words) 292 * 2) Resource Source String 293 * 3) Vendor Data bytes 294 */ 295 }; 296 297 #define AML_RESOURCE_GPIO_REVISION 1 /* ACPI 5.0 */ 298 299 /* Values for connection_type above */ 300 301 #define AML_RESOURCE_GPIO_TYPE_INT 0 302 #define AML_RESOURCE_GPIO_TYPE_IO 1 303 #define AML_RESOURCE_MAX_GPIOTYPE 1 304 305 /* Common preamble for all serial descriptors (ACPI 5.0) */ 306 307 #define AML_RESOURCE_SERIAL_COMMON \ 308 u8 revision_id; \ 309 u8 res_source_index; \ 310 u8 type; \ 311 u8 flags; \ 312 u16 type_specific_flags; \ 313 u8 type_revision_id; \ 314 u16 type_data_length; \ 315 316 /* Values for the type field above */ 317 318 #define AML_RESOURCE_I2C_SERIALBUSTYPE 1 319 #define AML_RESOURCE_SPI_SERIALBUSTYPE 2 320 #define AML_RESOURCE_UART_SERIALBUSTYPE 3 321 #define AML_RESOURCE_CSI2_SERIALBUSTYPE 4 322 #define AML_RESOURCE_MAX_SERIALBUSTYPE 4 323 #define AML_RESOURCE_VENDOR_SERIALBUSTYPE 192 /* Vendor defined is 0xC0-0xFF (NOT SUPPORTED) */ 324 325 struct aml_resource_common_serialbus { 326 AML_RESOURCE_LARGE_HEADER_COMMON AML_RESOURCE_SERIAL_COMMON}; 327 328 struct aml_resource_csi2_serialbus { 329 AML_RESOURCE_LARGE_HEADER_COMMON AML_RESOURCE_SERIAL_COMMON 330 /* 331 * Optional fields follow immediately: 332 * 1) Vendor Data bytes 333 * 2) Resource Source String 334 */ 335 }; 336 337 #define AML_RESOURCE_CSI2_REVISION 1 /* ACPI 6.4 */ 338 #define AML_RESOURCE_CSI2_TYPE_REVISION 1 /* ACPI 6.4 */ 339 #define AML_RESOURCE_CSI2_MIN_DATA_LEN 0 /* ACPI 6.4 */ 340 341 struct aml_resource_i2c_serialbus { 342 AML_RESOURCE_LARGE_HEADER_COMMON 343 AML_RESOURCE_SERIAL_COMMON u32 connection_speed; 344 u16 slave_address; 345 /* 346 * Optional fields follow immediately: 347 * 1) Vendor Data bytes 348 * 2) Resource Source String 349 */ 350 }; 351 352 #define AML_RESOURCE_I2C_REVISION 1 /* ACPI 5.0 */ 353 #define AML_RESOURCE_I2C_TYPE_REVISION 1 /* ACPI 5.0 */ 354 #define AML_RESOURCE_I2C_MIN_DATA_LEN 6 355 356 struct aml_resource_spi_serialbus { 357 AML_RESOURCE_LARGE_HEADER_COMMON 358 AML_RESOURCE_SERIAL_COMMON u32 connection_speed; 359 u8 data_bit_length; 360 u8 clock_phase; 361 u8 clock_polarity; 362 u16 device_selection; 363 /* 364 * Optional fields follow immediately: 365 * 1) Vendor Data bytes 366 * 2) Resource Source String 367 */ 368 }; 369 370 #define AML_RESOURCE_SPI_REVISION 1 /* ACPI 5.0 */ 371 #define AML_RESOURCE_SPI_TYPE_REVISION 1 /* ACPI 5.0 */ 372 #define AML_RESOURCE_SPI_MIN_DATA_LEN 9 373 374 struct aml_resource_uart_serialbus { 375 AML_RESOURCE_LARGE_HEADER_COMMON 376 AML_RESOURCE_SERIAL_COMMON u32 default_baud_rate; 377 u16 rx_fifo_size; 378 u16 tx_fifo_size; 379 u8 parity; 380 u8 lines_enabled; 381 /* 382 * Optional fields follow immediately: 383 * 1) Vendor Data bytes 384 * 2) Resource Source String 385 */ 386 }; 387 388 #define AML_RESOURCE_UART_REVISION 1 /* ACPI 5.0 */ 389 #define AML_RESOURCE_UART_TYPE_REVISION 1 /* ACPI 5.0 */ 390 #define AML_RESOURCE_UART_MIN_DATA_LEN 10 391 392 struct aml_resource_pin_function { 393 AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id; 394 u16 flags; 395 u8 pin_config; 396 u16 function_number; 397 u16 pin_table_offset; 398 u8 res_source_index; 399 u16 res_source_offset; 400 u16 vendor_offset; 401 u16 vendor_length; 402 /* 403 * Optional fields follow immediately: 404 * 1) PIN list (Words) 405 * 2) Resource Source String 406 * 3) Vendor Data bytes 407 */ 408 }; 409 410 #define AML_RESOURCE_PIN_FUNCTION_REVISION 1 /* ACPI 6.2 */ 411 412 struct aml_resource_pin_config { 413 AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id; 414 u16 flags; 415 u8 pin_config_type; 416 u32 pin_config_value; 417 u16 pin_table_offset; 418 u8 res_source_index; 419 u16 res_source_offset; 420 u16 vendor_offset; 421 u16 vendor_length; 422 /* 423 * Optional fields follow immediately: 424 * 1) PIN list (Words) 425 * 2) Resource Source String 426 * 3) Vendor Data bytes 427 */ 428 }; 429 430 #define AML_RESOURCE_PIN_CONFIG_REVISION 1 /* ACPI 6.2 */ 431 432 struct aml_resource_pin_group { 433 AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id; 434 u16 flags; 435 u16 pin_table_offset; 436 u16 label_offset; 437 u16 vendor_offset; 438 u16 vendor_length; 439 /* 440 * Optional fields follow immediately: 441 * 1) PIN list (Words) 442 * 2) Resource Label String 443 * 3) Vendor Data bytes 444 */ 445 }; 446 447 #define AML_RESOURCE_PIN_GROUP_REVISION 1 /* ACPI 6.2 */ 448 449 struct aml_resource_pin_group_function { 450 AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id; 451 u16 flags; 452 u16 function_number; 453 u8 res_source_index; 454 u16 res_source_offset; 455 u16 res_source_label_offset; 456 u16 vendor_offset; 457 u16 vendor_length; 458 /* 459 * Optional fields follow immediately: 460 * 1) Resource Source String 461 * 2) Resource Source Label String 462 * 3) Vendor Data bytes 463 */ 464 }; 465 466 #define AML_RESOURCE_PIN_GROUP_FUNCTION_REVISION 1 /* ACPI 6.2 */ 467 468 struct aml_resource_pin_group_config { 469 AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id; 470 u16 flags; 471 u8 pin_config_type; 472 u32 pin_config_value; 473 u8 res_source_index; 474 u16 res_source_offset; 475 u16 res_source_label_offset; 476 u16 vendor_offset; 477 u16 vendor_length; 478 /* 479 * Optional fields follow immediately: 480 * 1) Resource Source String 481 * 2) Resource Source Label String 482 * 3) Vendor Data bytes 483 */ 484 }; 485 486 #define AML_RESOURCE_PIN_GROUP_CONFIG_REVISION 1 /* ACPI 6.2 */ 487 488 /* restore default alignment */ 489 490 #pragma pack() 491 492 /* Union of all resource descriptors, so we can allocate the worst case */ 493 494 union aml_resource { 495 /* Descriptor headers */ 496 497 u8 descriptor_type; 498 struct aml_resource_small_header small_header; 499 struct aml_resource_large_header large_header; 500 501 /* Small resource descriptors */ 502 503 struct aml_resource_irq irq; 504 struct aml_resource_dma dma; 505 struct aml_resource_start_dependent start_dpf; 506 struct aml_resource_end_dependent end_dpf; 507 struct aml_resource_io io; 508 struct aml_resource_fixed_io fixed_io; 509 struct aml_resource_fixed_dma fixed_dma; 510 struct aml_resource_vendor_small vendor_small; 511 struct aml_resource_end_tag end_tag; 512 513 /* Large resource descriptors */ 514 515 struct aml_resource_memory24 memory24; 516 struct aml_resource_generic_register generic_reg; 517 struct aml_resource_vendor_large vendor_large; 518 struct aml_resource_memory32 memory32; 519 struct aml_resource_fixed_memory32 fixed_memory32; 520 struct aml_resource_address16 address16; 521 struct aml_resource_address32 address32; 522 struct aml_resource_address64 address64; 523 struct aml_resource_extended_address64 ext_address64; 524 struct aml_resource_extended_irq extended_irq; 525 struct aml_resource_gpio gpio; 526 struct aml_resource_i2c_serialbus i2c_serial_bus; 527 struct aml_resource_spi_serialbus spi_serial_bus; 528 struct aml_resource_uart_serialbus uart_serial_bus; 529 struct aml_resource_csi2_serialbus csi2_serial_bus; 530 struct aml_resource_common_serialbus common_serial_bus; 531 struct aml_resource_pin_function pin_function; 532 struct aml_resource_pin_config pin_config; 533 struct aml_resource_pin_group pin_group; 534 struct aml_resource_pin_group_function pin_group_function; 535 struct aml_resource_pin_group_config pin_group_config; 536 537 /* Utility overlays */ 538 539 struct aml_resource_address address; 540 u32 dword_item; 541 u16 word_item; 542 u8 byte_item; 543 }; 544 545 /* Interfaces used by both the disassembler and compiler */ 546 547 void 548 mp_save_gpio_info(union acpi_parse_object *op, 549 union aml_resource *resource, 550 u32 pin_count, u16 *pin_list, char *device_name); 551 552 void 553 mp_save_serial_info(union acpi_parse_object *op, 554 union aml_resource *resource, char *device_name); 555 556 char *mp_get_hid_from_parse_tree(struct acpi_namespace_node *hid_node); 557 558 char *mp_get_hid_via_namestring(char *device_name); 559 560 char *mp_get_connection_info(union acpi_parse_object *op, 561 u32 pin_index, 562 struct acpi_namespace_node **target_node, 563 char **target_name); 564 565 char *mp_get_parent_device_hid(union acpi_parse_object *op, 566 struct acpi_namespace_node **target_node, 567 char **parent_device_name); 568 569 char *mp_get_ddn_value(char *device_name); 570 571 char *mp_get_hid_value(struct acpi_namespace_node *device_node); 572 573 #endif 574