1/******************************************************************************* 2 * 3 * Module Name: rsaddr - Address resource descriptors (16/32/64) 4 * 5 ******************************************************************************/ 6 7/* 8 * Copyright (C) 2000 - 2007, R. Byron Moore 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#include <acpi/acpi.h> 45#include <acpi/acresrc.h> 46 47#define _COMPONENT ACPI_RESOURCES 48ACPI_MODULE_NAME("rsaddr") 49 50/******************************************************************************* 51 * 52 * acpi_rs_convert_address16 - All WORD (16-bit) address resources 53 * 54 ******************************************************************************/ 55struct acpi_rsconvert_info acpi_rs_convert_address16[5] = { 56 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS16, 57 ACPI_RS_SIZE(struct acpi_resource_address16), 58 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address16)}, 59 60 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS16, 61 sizeof(struct aml_resource_address16), 62 0}, 63 64 /* Resource Type, General Flags, and Type-Specific Flags */ 65 66 {ACPI_RSC_ADDRESS, 0, 0, 0}, 67 68 /* 69 * These fields are contiguous in both the source and destination: 70 * Address Granularity 71 * Address Range Minimum 72 * Address Range Maximum 73 * Address Translation Offset 74 * Address Length 75 */ 76 {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.address16.granularity), 77 AML_OFFSET(address16.granularity), 78 5}, 79 80 /* Optional resource_source (Index and String) */ 81 82 {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address16.resource_source), 83 0, 84 sizeof(struct aml_resource_address16)} 85}; 86 87/******************************************************************************* 88 * 89 * acpi_rs_convert_address32 - All DWORD (32-bit) address resources 90 * 91 ******************************************************************************/ 92 93struct acpi_rsconvert_info acpi_rs_convert_address32[5] = { 94 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS32, 95 ACPI_RS_SIZE(struct acpi_resource_address32), 96 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address32)}, 97 98 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS32, 99 sizeof(struct aml_resource_address32), 100 0}, 101 102 /* Resource Type, General Flags, and Type-Specific Flags */ 103 104 {ACPI_RSC_ADDRESS, 0, 0, 0}, 105 106 /* 107 * These fields are contiguous in both the source and destination: 108 * Address Granularity 109 * Address Range Minimum 110 * Address Range Maximum 111 * Address Translation Offset 112 * Address Length 113 */ 114 {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.address32.granularity), 115 AML_OFFSET(address32.granularity), 116 5}, 117 118 /* Optional resource_source (Index and String) */ 119 120 {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address32.resource_source), 121 0, 122 sizeof(struct aml_resource_address32)} 123}; 124 125/******************************************************************************* 126 * 127 * acpi_rs_convert_address64 - All QWORD (64-bit) address resources 128 * 129 ******************************************************************************/ 130 131struct acpi_rsconvert_info acpi_rs_convert_address64[5] = { 132 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS64, 133 ACPI_RS_SIZE(struct acpi_resource_address64), 134 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address64)}, 135 136 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS64, 137 sizeof(struct aml_resource_address64), 138 0}, 139 140 /* Resource Type, General Flags, and Type-Specific Flags */ 141 142 {ACPI_RSC_ADDRESS, 0, 0, 0}, 143 144 /* 145 * These fields are contiguous in both the source and destination: 146 * Address Granularity 147 * Address Range Minimum 148 * Address Range Maximum 149 * Address Translation Offset 150 * Address Length 151 */ 152 {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.address64.granularity), 153 AML_OFFSET(address64.granularity), 154 5}, 155 156 /* Optional resource_source (Index and String) */ 157 158 {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address64.resource_source), 159 0, 160 sizeof(struct aml_resource_address64)} 161}; 162 163/******************************************************************************* 164 * 165 * acpi_rs_convert_ext_address64 - All Extended (64-bit) address resources 166 * 167 ******************************************************************************/ 168 169struct acpi_rsconvert_info acpi_rs_convert_ext_address64[5] = { 170 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64, 171 ACPI_RS_SIZE(struct acpi_resource_extended_address64), 172 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_address64)}, 173 174 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64, 175 sizeof(struct aml_resource_extended_address64), 176 0}, 177 178 /* Resource Type, General Flags, and Type-Specific Flags */ 179 180 {ACPI_RSC_ADDRESS, 0, 0, 0}, 181 182 /* Revision ID */ 183 184 {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.ext_address64.revision_iD), 185 AML_OFFSET(ext_address64.revision_iD), 186 1}, 187 /* 188 * These fields are contiguous in both the source and destination: 189 * Address Granularity 190 * Address Range Minimum 191 * Address Range Maximum 192 * Address Translation Offset 193 * Address Length 194 * Type-Specific Attribute 195 */ 196 {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.ext_address64.granularity), 197 AML_OFFSET(ext_address64.granularity), 198 6} 199}; 200 201/******************************************************************************* 202 * 203 * acpi_rs_convert_general_flags - Flags common to all address descriptors 204 * 205 ******************************************************************************/ 206 207static struct acpi_rsconvert_info acpi_rs_convert_general_flags[6] = { 208 {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.flags), 209 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_general_flags)}, 210 211 /* Resource Type (Memory, Io, bus_number, etc.) */ 212 213 {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.address.resource_type), 214 AML_OFFSET(address.resource_type), 215 1}, 216 217 /* General Flags - Consume, Decode, min_fixed, max_fixed */ 218 219 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.producer_consumer), 220 AML_OFFSET(address.flags), 221 0}, 222 223 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.decode), 224 AML_OFFSET(address.flags), 225 1}, 226 227 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.min_address_fixed), 228 AML_OFFSET(address.flags), 229 2}, 230 231 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.max_address_fixed), 232 AML_OFFSET(address.flags), 233 3} 234}; 235 236/******************************************************************************* 237 * 238 * acpi_rs_convert_mem_flags - Flags common to Memory address descriptors 239 * 240 ******************************************************************************/ 241 242static struct acpi_rsconvert_info acpi_rs_convert_mem_flags[5] = { 243 {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags), 244 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_mem_flags)}, 245 246 /* Memory-specific flags */ 247 248 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.write_protect), 249 AML_OFFSET(address.specific_flags), 250 0}, 251 252 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.caching), 253 AML_OFFSET(address.specific_flags), 254 1}, 255 256 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.range_type), 257 AML_OFFSET(address.specific_flags), 258 3}, 259 260 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.translation), 261 AML_OFFSET(address.specific_flags), 262 5} 263}; 264 265/******************************************************************************* 266 * 267 * acpi_rs_convert_io_flags - Flags common to I/O address descriptors 268 * 269 ******************************************************************************/ 270 271static struct acpi_rsconvert_info acpi_rs_convert_io_flags[4] = { 272 {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags), 273 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_io_flags)}, 274 275 /* I/O-specific flags */ 276 277 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.io.range_type), 278 AML_OFFSET(address.specific_flags), 279 0}, 280 281 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.io.translation), 282 AML_OFFSET(address.specific_flags), 283 4}, 284 285 {ACPI_RSC_1BITFLAG, 286 ACPI_RS_OFFSET(data.address.info.io.translation_type), 287 AML_OFFSET(address.specific_flags), 288 5} 289}; 290 291/******************************************************************************* 292 * 293 * FUNCTION: acpi_rs_get_address_common 294 * 295 * PARAMETERS: Resource - Pointer to the internal resource struct 296 * Aml - Pointer to the AML resource descriptor 297 * 298 * RETURN: TRUE if the resource_type field is OK, FALSE otherwise 299 * 300 * DESCRIPTION: Convert common flag fields from a raw AML resource descriptor 301 * to an internal resource descriptor 302 * 303 ******************************************************************************/ 304 305u8 306acpi_rs_get_address_common(struct acpi_resource *resource, 307 union aml_resource *aml) 308{ 309 ACPI_FUNCTION_ENTRY(); 310 311 /* Validate the Resource Type */ 312 313 if ((aml->address.resource_type > 2) 314 && (aml->address.resource_type < 0xC0)) { 315 return (FALSE); 316 } 317 318 /* Get the Resource Type and General Flags */ 319 320 (void)acpi_rs_convert_aml_to_resource(resource, aml, 321 acpi_rs_convert_general_flags); 322 323 /* Get the Type-Specific Flags (Memory and I/O descriptors only) */ 324 325 if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) { 326 (void)acpi_rs_convert_aml_to_resource(resource, aml, 327 acpi_rs_convert_mem_flags); 328 } else if (resource->data.address.resource_type == ACPI_IO_RANGE) { 329 (void)acpi_rs_convert_aml_to_resource(resource, aml, 330 acpi_rs_convert_io_flags); 331 } else { 332 /* Generic resource type, just grab the type_specific byte */ 333 334 resource->data.address.info.type_specific = 335 aml->address.specific_flags; 336 } 337 338 return (TRUE); 339} 340 341/******************************************************************************* 342 * 343 * FUNCTION: acpi_rs_set_address_common 344 * 345 * PARAMETERS: Aml - Pointer to the AML resource descriptor 346 * Resource - Pointer to the internal resource struct 347 * 348 * RETURN: None 349 * 350 * DESCRIPTION: Convert common flag fields from a resource descriptor to an 351 * AML descriptor 352 * 353 ******************************************************************************/ 354 355void 356acpi_rs_set_address_common(union aml_resource *aml, 357 struct acpi_resource *resource) 358{ 359 ACPI_FUNCTION_ENTRY(); 360 361 /* Set the Resource Type and General Flags */ 362 363 (void)acpi_rs_convert_resource_to_aml(resource, aml, 364 acpi_rs_convert_general_flags); 365 366 /* Set the Type-Specific Flags (Memory and I/O descriptors only) */ 367 368 if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) { 369 (void)acpi_rs_convert_resource_to_aml(resource, aml, 370 acpi_rs_convert_mem_flags); 371 } else if (resource->data.address.resource_type == ACPI_IO_RANGE) { 372 (void)acpi_rs_convert_resource_to_aml(resource, aml, 373 acpi_rs_convert_io_flags); 374 } else { 375 /* Generic resource type, just copy the type_specific byte */ 376 377 aml->address.specific_flags = 378 resource->data.address.info.type_specific; 379 } 380} 381