drivers/acpi/acpica/amlresrc.h

   1 /******************************************************************************
   2  *
   3  * Module Name: amlresrc.h - AML resource descriptors
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2013, 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 /* acpisrc:struct_defs -- for acpisrc conversion */
  45
  46 #ifndef __AMLRESRC_H
  47 #define __AMLRESRC_H
  48
  49 /*
  50  * Resource descriptor tags, as defined in the ACPI specification.
  51  * Used to symbolically reference fields within a descriptor.
  52  */
  53 #define ACPI_RESTAG_ADDRESS                     "_ADR"
  54 #define ACPI_RESTAG_ALIGNMENT                   "_ALN"
  55 #define ACPI_RESTAG_ADDRESSSPACE                "_ASI"
  56 #define ACPI_RESTAG_ACCESSSIZE                  "_ASZ"
  57 #define ACPI_RESTAG_TYPESPECIFICATTRIBUTES      "_ATT"
  58 #define ACPI_RESTAG_BASEADDRESS                 "_BAS"
  59 #define ACPI_RESTAG_BUSMASTER                   "_BM_"  /* Master(1), Slave(0) */
  60 #define ACPI_RESTAG_DEBOUNCETIME                "_DBT"
  61 #define ACPI_RESTAG_DECODE                      "_DEC"
  62 #define ACPI_RESTAG_DEVICEPOLARITY              "_DPL"
  63 #define ACPI_RESTAG_DMA                         "_DMA"
  64 #define ACPI_RESTAG_DMATYPE                     "_TYP"  /* Compatible(0), A(1), B(2), F(3) */
  65 #define ACPI_RESTAG_DRIVESTRENGTH               "_DRS"
  66 #define ACPI_RESTAG_ENDIANNESS                  "_END"
  67 #define ACPI_RESTAG_FLOWCONTROL                 "_FLC"
  68 #define ACPI_RESTAG_GRANULARITY                 "_GRA"
  69 #define ACPI_RESTAG_INTERRUPT                   "_INT"
  70 #define ACPI_RESTAG_INTERRUPTLEVEL              "_LL_"  /* active_lo(1), active_hi(0) */
  71 #define ACPI_RESTAG_INTERRUPTSHARE              "_SHR"  /* Shareable(1), no_share(0) */
  72 #define ACPI_RESTAG_INTERRUPTTYPE               "_HE_"  /* Edge(1), Level(0) */
  73 #define ACPI_RESTAG_IORESTRICTION               "_IOR"
  74 #define ACPI_RESTAG_LENGTH                      "_LEN"
  75 #define ACPI_RESTAG_LINE                        "_LIN"
  76 #define ACPI_RESTAG_MEMATTRIBUTES               "_MTP"  /* Memory(0), Reserved(1), ACPI(2), NVS(3) */
  77 #define ACPI_RESTAG_MEMTYPE                     "_MEM"  /* non_cache(0), Cacheable(1) Cache+combine(2), Cache+prefetch(3) */
  78 #define ACPI_RESTAG_MAXADDR                     "_MAX"
  79 #define ACPI_RESTAG_MINADDR                     "_MIN"
  80 #define ACPI_RESTAG_MAXTYPE                     "_MAF"
  81 #define ACPI_RESTAG_MINTYPE                     "_MIF"
  82 #define ACPI_RESTAG_MODE                        "_MOD"
  83 #define ACPI_RESTAG_PARITY                      "_PAR"
  84 #define ACPI_RESTAG_PHASE                       "_PHA"
  85 #define ACPI_RESTAG_PIN                         "_PIN"
  86 #define ACPI_RESTAG_PINCONFIG                   "_PPI"
  87 #define ACPI_RESTAG_POLARITY                    "_POL"
  88 #define ACPI_RESTAG_REGISTERBITOFFSET           "_RBO"
  89 #define ACPI_RESTAG_REGISTERBITWIDTH            "_RBW"
  90 #define ACPI_RESTAG_RANGETYPE                   "_RNG"
  91 #define ACPI_RESTAG_READWRITETYPE               "_RW_"  /* read_only(0), Writeable (1) */
  92 #define ACPI_RESTAG_LENGTH_RX                   "_RXL"
  93 #define ACPI_RESTAG_LENGTH_TX                   "_TXL"
  94 #define ACPI_RESTAG_SLAVEMODE                   "_SLV"
  95 #define ACPI_RESTAG_SPEED                       "_SPE"
  96 #define ACPI_RESTAG_STOPBITS                    "_STB"
  97 #define ACPI_RESTAG_TRANSLATION                 "_TRA"
  98 #define ACPI_RESTAG_TRANSTYPE                   "_TRS"  /* Sparse(1), Dense(0) */
  99 #define ACPI_RESTAG_TYPE                        "_TTP"  /* Translation(1), Static (0) */
 100 #define ACPI_RESTAG_XFERTYPE                    "_SIZ"  /* 8(0), 8And16(1), 16(2) */
 101 #define ACPI_RESTAG_VENDORDATA                  "_VEN"
 102
 103 /* Default sizes for "small" resource descriptors */
 104
 105 #define ASL_RDESC_IRQ_SIZE                      0x02
 106 #define ASL_RDESC_DMA_SIZE                      0x02
 107 #define ASL_RDESC_ST_DEPEND_SIZE                0x00
 108 #define ASL_RDESC_END_DEPEND_SIZE               0x00
 109 #define ASL_RDESC_IO_SIZE                       0x07
 110 #define ASL_RDESC_FIXED_IO_SIZE                 0x03
 111 #define ASL_RDESC_FIXED_DMA_SIZE                0x05
 112 #define ASL_RDESC_END_TAG_SIZE                  0x01
 113
 114 struct asl_resource_node {
 115         u32 buffer_length;
 116         void *buffer;
 117         struct asl_resource_node *next;
 118 };
 119
 120 /* Macros used to generate AML resource length fields */
 121
 122 #define ACPI_AML_SIZE_LARGE(r)      (sizeof (r) - sizeof (struct aml_resource_large_header))
 123 #define ACPI_AML_SIZE_SMALL(r)      (sizeof (r) - sizeof (struct aml_resource_small_header))
 124
 125 /*
 126  * Resource descriptors defined in the ACPI specification.
 127  *
 128  * Packing/alignment must be BYTE because these descriptors
 129  * are used to overlay the raw AML byte stream.
 130  */
 131 #pragma pack(1)
 132
 133 /*
 134  * SMALL descriptors
 135  */
 136 #define AML_RESOURCE_SMALL_HEADER_COMMON \
 137         u8                              descriptor_type;
 138
 139 struct aml_resource_small_header {
 140 AML_RESOURCE_SMALL_HEADER_COMMON};
 141
 142 struct aml_resource_irq {
 143         AML_RESOURCE_SMALL_HEADER_COMMON u16 irq_mask;
 144         u8 flags;
 145 };
 146
 147 struct aml_resource_irq_noflags {
 148         AML_RESOURCE_SMALL_HEADER_COMMON u16 irq_mask;
 149 };
 150
 151 struct aml_resource_dma {
 152         AML_RESOURCE_SMALL_HEADER_COMMON u8 dma_channel_mask;
 153         u8 flags;
 154 };
 155
 156 struct aml_resource_start_dependent {
 157         AML_RESOURCE_SMALL_HEADER_COMMON u8 flags;
 158 };
 159
 160 struct aml_resource_start_dependent_noprio {
 161 AML_RESOURCE_SMALL_HEADER_COMMON};
 162
 163 struct aml_resource_end_dependent {
 164 AML_RESOURCE_SMALL_HEADER_COMMON};
 165
 166 struct aml_resource_io {
 167         AML_RESOURCE_SMALL_HEADER_COMMON u8 flags;
 168         u16 minimum;
 169         u16 maximum;
 170         u8 alignment;
 171         u8 address_length;
 172 };
 173
 174 struct aml_resource_fixed_io {
 175         AML_RESOURCE_SMALL_HEADER_COMMON u16 address;
 176         u8 address_length;
 177 };
 178
 179 struct aml_resource_vendor_small {
 180 AML_RESOURCE_SMALL_HEADER_COMMON};
 181
 182 struct aml_resource_end_tag {
 183         AML_RESOURCE_SMALL_HEADER_COMMON u8 checksum;
 184 };
 185
 186 struct aml_resource_fixed_dma {
 187         AML_RESOURCE_SMALL_HEADER_COMMON u16 request_lines;
 188         u16 channels;
 189         u8 width;
 190 };
 191
 192 /*
 193  * LARGE descriptors
 194  */
 195 #define AML_RESOURCE_LARGE_HEADER_COMMON \
 196         u8                              descriptor_type;\
 197         u16                             resource_length;
 198
 199 struct aml_resource_large_header {
 200 AML_RESOURCE_LARGE_HEADER_COMMON};
 201
 202 /* General Flags for address space resource descriptors */
 203
 204 #define ACPI_RESOURCE_FLAG_DEC      2
 205 #define ACPI_RESOURCE_FLAG_MIF      4
 206 #define ACPI_RESOURCE_FLAG_MAF      8
 207
 208 struct aml_resource_memory24 {
 209         AML_RESOURCE_LARGE_HEADER_COMMON u8 flags;
 210         u16 minimum;
 211         u16 maximum;
 212         u16 alignment;
 213         u16 address_length;
 214 };
 215
 216 struct aml_resource_vendor_large {
 217 AML_RESOURCE_LARGE_HEADER_COMMON};
 218
 219 struct aml_resource_memory32 {
 220         AML_RESOURCE_LARGE_HEADER_COMMON u8 flags;
 221         u32 minimum;
 222         u32 maximum;
 223         u32 alignment;
 224         u32 address_length;
 225 };
 226
 227 struct aml_resource_fixed_memory32 {
 228         AML_RESOURCE_LARGE_HEADER_COMMON u8 flags;
 229         u32 address;
 230         u32 address_length;
 231 };
 232
 233 #define AML_RESOURCE_ADDRESS_COMMON \
 234         u8                              resource_type; \
 235         u8                              flags; \
 236         u8                              specific_flags;
 237
 238 struct aml_resource_address {
 239 AML_RESOURCE_LARGE_HEADER_COMMON AML_RESOURCE_ADDRESS_COMMON};
 240
 241 struct aml_resource_extended_address64 {
 242         AML_RESOURCE_LARGE_HEADER_COMMON
 243             AML_RESOURCE_ADDRESS_COMMON u8 revision_ID;
 244         u8 reserved;
 245         u64 granularity;
 246         u64 minimum;
 247         u64 maximum;
 248         u64 translation_offset;
 249         u64 address_length;
 250         u64 type_specific;
 251 };
 252
 253 #define AML_RESOURCE_EXTENDED_ADDRESS_REVISION          1       /* ACPI 3.0 */
 254
 255 struct aml_resource_address64 {
 256         AML_RESOURCE_LARGE_HEADER_COMMON
 257             AML_RESOURCE_ADDRESS_COMMON u64 granularity;
 258         u64 minimum;
 259         u64 maximum;
 260         u64 translation_offset;
 261         u64 address_length;
 262 };
 263
 264 struct aml_resource_address32 {
 265         AML_RESOURCE_LARGE_HEADER_COMMON
 266             AML_RESOURCE_ADDRESS_COMMON u32 granularity;
 267         u32 minimum;
 268         u32 maximum;
 269         u32 translation_offset;
 270         u32 address_length;
 271 };
 272
 273 struct aml_resource_address16 {
 274         AML_RESOURCE_LARGE_HEADER_COMMON
 275             AML_RESOURCE_ADDRESS_COMMON u16 granularity;
 276         u16 minimum;
 277         u16 maximum;
 278         u16 translation_offset;
 279         u16 address_length;
 280 };
 281
 282 struct aml_resource_extended_irq {
 283         AML_RESOURCE_LARGE_HEADER_COMMON u8 flags;
 284         u8 interrupt_count;
 285         u32 interrupts[1];
 286         /* res_source_index, res_source optional fields follow */
 287 };
 288
 289 struct aml_resource_generic_register {
 290         AML_RESOURCE_LARGE_HEADER_COMMON u8 address_space_id;
 291         u8 bit_width;
 292         u8 bit_offset;
 293         u8 access_size;         /* ACPI 3.0, was previously Reserved */
 294         u64 address;
 295 };
 296
 297 /* Common descriptor for gpio_int and gpio_io (ACPI 5.0) */
 298
 299 struct aml_resource_gpio {
 300         AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id;
 301         u8 connection_type;
 302         u16 flags;
 303         u16 int_flags;
 304         u8 pin_config;
 305         u16 drive_strength;
 306         u16 debounce_timeout;
 307         u16 pin_table_offset;
 308         u8 res_source_index;
 309         u16 res_source_offset;
 310         u16 vendor_offset;
 311         u16 vendor_length;
 312         /*
 313          * Optional fields follow immediately:
 314          * 1) PIN list (Words)
 315          * 2) Resource Source String
 316          * 3) Vendor Data bytes
 317          */
 318 };
 319
 320 #define AML_RESOURCE_GPIO_REVISION              1       /* ACPI 5.0 */
 321
 322 /* Values for connection_type above */
 323
 324 #define AML_RESOURCE_GPIO_TYPE_INT              0
 325 #define AML_RESOURCE_GPIO_TYPE_IO               1
 326 #define AML_RESOURCE_MAX_GPIOTYPE               1
 327
 328 /* Common preamble for all serial descriptors (ACPI 5.0) */
 329
 330 #define AML_RESOURCE_SERIAL_COMMON \
 331         u8                              revision_id; \
 332         u8                              res_source_index; \
 333         u8                              type; \
 334         u8                              flags; \
 335         u16                             type_specific_flags; \
 336         u8                              type_revision_id; \
 337         u16                             type_data_length; \
 338
 339 /* Values for the type field above */
 340
 341 #define AML_RESOURCE_I2C_SERIALBUSTYPE          1
 342 #define AML_RESOURCE_SPI_SERIALBUSTYPE          2
 343 #define AML_RESOURCE_UART_SERIALBUSTYPE         3
 344 #define AML_RESOURCE_MAX_SERIALBUSTYPE          3
 345 #define AML_RESOURCE_VENDOR_SERIALBUSTYPE       192     /* Vendor defined is 0xC0-0xFF (NOT SUPPORTED) */
 346
 347 struct aml_resource_common_serialbus {
 348 AML_RESOURCE_LARGE_HEADER_COMMON AML_RESOURCE_SERIAL_COMMON};
 349
 350 struct aml_resource_i2c_serialbus {
 351         AML_RESOURCE_LARGE_HEADER_COMMON
 352             AML_RESOURCE_SERIAL_COMMON u32 connection_speed;
 353         u16 slave_address;
 354         /*
 355          * Optional fields follow immediately:
 356          * 1) Vendor Data bytes
 357          * 2) Resource Source String
 358          */
 359 };
 360
 361 #define AML_RESOURCE_I2C_REVISION               1       /* ACPI 5.0 */
 362 #define AML_RESOURCE_I2C_TYPE_REVISION          1       /* ACPI 5.0 */
 363 #define AML_RESOURCE_I2C_MIN_DATA_LEN           6
 364
 365 struct aml_resource_spi_serialbus {
 366         AML_RESOURCE_LARGE_HEADER_COMMON
 367             AML_RESOURCE_SERIAL_COMMON u32 connection_speed;
 368         u8 data_bit_length;
 369         u8 clock_phase;
 370         u8 clock_polarity;
 371         u16 device_selection;
 372         /*
 373          * Optional fields follow immediately:
 374          * 1) Vendor Data bytes
 375          * 2) Resource Source String
 376          */
 377 };
 378
 379 #define AML_RESOURCE_SPI_REVISION               1       /* ACPI 5.0 */
 380 #define AML_RESOURCE_SPI_TYPE_REVISION          1       /* ACPI 5.0 */
 381 #define AML_RESOURCE_SPI_MIN_DATA_LEN           9
 382
 383 struct aml_resource_uart_serialbus {
 384         AML_RESOURCE_LARGE_HEADER_COMMON
 385             AML_RESOURCE_SERIAL_COMMON u32 default_baud_rate;
 386         u16 rx_fifo_size;
 387         u16 tx_fifo_size;
 388         u8 parity;
 389         u8 lines_enabled;
 390         /*
 391          * Optional fields follow immediately:
 392          * 1) Vendor Data bytes
 393          * 2) Resource Source String
 394          */
 395 };
 396
 397 #define AML_RESOURCE_UART_REVISION              1       /* ACPI 5.0 */
 398 #define AML_RESOURCE_UART_TYPE_REVISION         1       /* ACPI 5.0 */
 399 #define AML_RESOURCE_UART_MIN_DATA_LEN          10
 400
 401 /* restore default alignment */
 402
 403 #pragma pack()
 404
 405 /* Union of all resource descriptors, so we can allocate the worst case */
 406
 407 union aml_resource {
 408         /* Descriptor headers */
 409
 410         u8 descriptor_type;
 411         struct aml_resource_small_header small_header;
 412         struct aml_resource_large_header large_header;
 413
 414         /* Small resource descriptors */
 415
 416         struct aml_resource_irq irq;
 417         struct aml_resource_dma dma;
 418         struct aml_resource_start_dependent start_dpf;
 419         struct aml_resource_end_dependent end_dpf;
 420         struct aml_resource_io io;
 421         struct aml_resource_fixed_io fixed_io;
 422         struct aml_resource_fixed_dma fixed_dma;
 423         struct aml_resource_vendor_small vendor_small;
 424         struct aml_resource_end_tag end_tag;
 425
 426         /* Large resource descriptors */
 427
 428         struct aml_resource_memory24 memory24;
 429         struct aml_resource_generic_register generic_reg;
 430         struct aml_resource_vendor_large vendor_large;
 431         struct aml_resource_memory32 memory32;
 432         struct aml_resource_fixed_memory32 fixed_memory32;
 433         struct aml_resource_address16 address16;
 434         struct aml_resource_address32 address32;
 435         struct aml_resource_address64 address64;
 436         struct aml_resource_extended_address64 ext_address64;
 437         struct aml_resource_extended_irq extended_irq;
 438         struct aml_resource_gpio gpio;
 439         struct aml_resource_i2c_serialbus i2c_serial_bus;
 440         struct aml_resource_spi_serialbus spi_serial_bus;
 441         struct aml_resource_uart_serialbus uart_serial_bus;
 442         struct aml_resource_common_serialbus common_serial_bus;
 443
 444         /* Utility overlays */
 445
 446         struct aml_resource_address address;
 447         u32 dword_item;
 448         u16 word_item;
 449         u8 byte_item;
 450 };
 451
 452 #endif