Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 1 | /******************************************************************************* |
| 2 | * |
Joe Perches | 3c5f9be4 | 2008-02-03 17:06:17 +0200 | [diff] [blame] | 3 | * Module Name: utresrc - Resource management utilities |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 4 | * |
| 5 | ******************************************************************************/ |
| 6 | |
| 7 | /* |
Bob Moore | fbb7a2d | 2014-02-08 09:42:25 +0800 | [diff] [blame] | 8 | * Copyright (C) 2000 - 2014, Intel Corp. |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 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> |
Len Brown | e2f7a77 | 2009-01-09 00:30:03 -0500 | [diff] [blame] | 45 | #include "accommon.h" |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 46 | #include "acresrc.h" |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 47 | |
| 48 | #define _COMPONENT ACPI_UTILITIES |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 49 | ACPI_MODULE_NAME("utresrc") |
Lv Zheng | 3334861 | 2014-02-08 09:42:46 +0800 | [diff] [blame] | 50 | |
| 51 | #if defined(ACPI_DEBUG_OUTPUT) || defined (ACPI_DISASSEMBLER) || defined (ACPI_DEBUGGER) |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 52 | /* |
| 53 | * Strings used to decode resource descriptors. |
Justin P. Mattock | 70f23fd | 2011-05-10 10:16:21 +0200 | [diff] [blame] | 54 | * Used by both the disassembler and the debugger resource dump routines |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 55 | */ |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 56 | const char *acpi_gbl_bm_decode[] = { |
| 57 | "NotBusMaster", |
| 58 | "BusMaster" |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 59 | }; |
| 60 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 61 | const char *acpi_gbl_config_decode[] = { |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 62 | "0 - Good Configuration", |
| 63 | "1 - Acceptable Configuration", |
| 64 | "2 - Suboptimal Configuration", |
| 65 | "3 - ***Invalid Configuration***", |
| 66 | }; |
| 67 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 68 | const char *acpi_gbl_consume_decode[] = { |
| 69 | "ResourceProducer", |
| 70 | "ResourceConsumer" |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 71 | }; |
| 72 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 73 | const char *acpi_gbl_dec_decode[] = { |
| 74 | "PosDecode", |
| 75 | "SubDecode" |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 76 | }; |
| 77 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 78 | const char *acpi_gbl_he_decode[] = { |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 79 | "Level", |
| 80 | "Edge" |
| 81 | }; |
| 82 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 83 | const char *acpi_gbl_io_decode[] = { |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 84 | "Decode10", |
| 85 | "Decode16" |
| 86 | }; |
| 87 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 88 | const char *acpi_gbl_ll_decode[] = { |
| 89 | "ActiveHigh", |
Bob Moore | 4cc0909 | 2014-09-02 08:27:27 +0800 | [diff] [blame] | 90 | "ActiveLow", |
| 91 | "ActiveBoth", |
| 92 | "Reserved" |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 93 | }; |
| 94 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 95 | const char *acpi_gbl_max_decode[] = { |
| 96 | "MaxNotFixed", |
| 97 | "MaxFixed" |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 98 | }; |
| 99 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 100 | const char *acpi_gbl_mem_decode[] = { |
| 101 | "NonCacheable", |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 102 | "Cacheable", |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 103 | "WriteCombining", |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 104 | "Prefetchable" |
| 105 | }; |
| 106 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 107 | const char *acpi_gbl_min_decode[] = { |
| 108 | "MinNotFixed", |
| 109 | "MinFixed" |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 110 | }; |
| 111 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 112 | const char *acpi_gbl_mtp_decode[] = { |
| 113 | "AddressRangeMemory", |
| 114 | "AddressRangeReserved", |
| 115 | "AddressRangeACPI", |
| 116 | "AddressRangeNVS" |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 117 | }; |
| 118 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 119 | const char *acpi_gbl_rng_decode[] = { |
| 120 | "InvalidRanges", |
| 121 | "NonISAOnlyRanges", |
| 122 | "ISAOnlyRanges", |
| 123 | "EntireRange" |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 124 | }; |
| 125 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 126 | const char *acpi_gbl_rw_decode[] = { |
| 127 | "ReadOnly", |
| 128 | "ReadWrite" |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 129 | }; |
| 130 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 131 | const char *acpi_gbl_shr_decode[] = { |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 132 | "Exclusive", |
Bob Moore | 1f06c92 | 2012-12-19 05:38:12 +0000 | [diff] [blame] | 133 | "Shared", |
| 134 | "ExclusiveAndWake", /* ACPI 5.0 */ |
| 135 | "SharedAndWake" /* ACPI 5.0 */ |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 136 | }; |
| 137 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 138 | const char *acpi_gbl_siz_decode[] = { |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 139 | "Transfer8", |
| 140 | "Transfer8_16", |
| 141 | "Transfer16", |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 142 | "InvalidSize" |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 143 | }; |
| 144 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 145 | const char *acpi_gbl_trs_decode[] = { |
| 146 | "DenseTranslation", |
| 147 | "SparseTranslation" |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 148 | }; |
| 149 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 150 | const char *acpi_gbl_ttp_decode[] = { |
| 151 | "TypeStatic", |
| 152 | "TypeTranslation" |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 153 | }; |
| 154 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 155 | const char *acpi_gbl_typ_decode[] = { |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 156 | "Compatibility", |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 157 | "TypeA", |
| 158 | "TypeB", |
| 159 | "TypeF" |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 160 | }; |
| 161 | |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 162 | const char *acpi_gbl_ppc_decode[] = { |
| 163 | "PullDefault", |
| 164 | "PullUp", |
| 165 | "PullDown", |
| 166 | "PullNone" |
| 167 | }; |
| 168 | |
| 169 | const char *acpi_gbl_ior_decode[] = { |
| 170 | "IoRestrictionNone", |
| 171 | "IoRestrictionInputOnly", |
| 172 | "IoRestrictionOutputOnly", |
| 173 | "IoRestrictionNoneAndPreserve" |
| 174 | }; |
| 175 | |
| 176 | const char *acpi_gbl_dts_decode[] = { |
| 177 | "Width8bit", |
| 178 | "Width16bit", |
| 179 | "Width32bit", |
| 180 | "Width64bit", |
| 181 | "Width128bit", |
| 182 | "Width256bit", |
| 183 | }; |
| 184 | |
| 185 | /* GPIO connection type */ |
| 186 | |
| 187 | const char *acpi_gbl_ct_decode[] = { |
| 188 | "Interrupt", |
| 189 | "I/O" |
| 190 | }; |
| 191 | |
| 192 | /* Serial bus type */ |
| 193 | |
| 194 | const char *acpi_gbl_sbt_decode[] = { |
| 195 | "/* UNKNOWN serial bus type */", |
| 196 | "I2C", |
| 197 | "SPI", |
| 198 | "UART" |
| 199 | }; |
| 200 | |
| 201 | /* I2C serial bus access mode */ |
| 202 | |
| 203 | const char *acpi_gbl_am_decode[] = { |
| 204 | "AddressingMode7Bit", |
| 205 | "AddressingMode10Bit" |
| 206 | }; |
| 207 | |
| 208 | /* I2C serial bus slave mode */ |
| 209 | |
| 210 | const char *acpi_gbl_sm_decode[] = { |
| 211 | "ControllerInitiated", |
| 212 | "DeviceInitiated" |
| 213 | }; |
| 214 | |
| 215 | /* SPI serial bus wire mode */ |
| 216 | |
| 217 | const char *acpi_gbl_wm_decode[] = { |
| 218 | "FourWireMode", |
| 219 | "ThreeWireMode" |
| 220 | }; |
| 221 | |
| 222 | /* SPI serial clock phase */ |
| 223 | |
| 224 | const char *acpi_gbl_cph_decode[] = { |
| 225 | "ClockPhaseFirst", |
| 226 | "ClockPhaseSecond" |
| 227 | }; |
| 228 | |
| 229 | /* SPI serial bus clock polarity */ |
| 230 | |
| 231 | const char *acpi_gbl_cpo_decode[] = { |
| 232 | "ClockPolarityLow", |
| 233 | "ClockPolarityHigh" |
| 234 | }; |
| 235 | |
| 236 | /* SPI serial bus device polarity */ |
| 237 | |
| 238 | const char *acpi_gbl_dp_decode[] = { |
| 239 | "PolarityLow", |
| 240 | "PolarityHigh" |
| 241 | }; |
| 242 | |
| 243 | /* UART serial bus endian */ |
| 244 | |
| 245 | const char *acpi_gbl_ed_decode[] = { |
| 246 | "LittleEndian", |
| 247 | "BigEndian" |
| 248 | }; |
| 249 | |
| 250 | /* UART serial bus bits per byte */ |
| 251 | |
| 252 | const char *acpi_gbl_bpb_decode[] = { |
| 253 | "DataBitsFive", |
| 254 | "DataBitsSix", |
| 255 | "DataBitsSeven", |
| 256 | "DataBitsEight", |
| 257 | "DataBitsNine", |
| 258 | "/* UNKNOWN Bits per byte */", |
| 259 | "/* UNKNOWN Bits per byte */", |
| 260 | "/* UNKNOWN Bits per byte */" |
| 261 | }; |
| 262 | |
| 263 | /* UART serial bus stop bits */ |
| 264 | |
| 265 | const char *acpi_gbl_sb_decode[] = { |
Bob Moore | 1181173 | 2014-11-27 14:26:28 +0800 | [diff] [blame^] | 266 | "StopBitsZero", |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 267 | "StopBitsOne", |
| 268 | "StopBitsOnePlusHalf", |
| 269 | "StopBitsTwo" |
| 270 | }; |
| 271 | |
| 272 | /* UART serial bus flow control */ |
| 273 | |
| 274 | const char *acpi_gbl_fc_decode[] = { |
| 275 | "FlowControlNone", |
| 276 | "FlowControlHardware", |
| 277 | "FlowControlXON", |
| 278 | "/* UNKNOWN flow control keyword */" |
| 279 | }; |
| 280 | |
| 281 | /* UART serial bus parity type */ |
| 282 | |
| 283 | const char *acpi_gbl_pt_decode[] = { |
| 284 | "ParityTypeNone", |
| 285 | "ParityTypeEven", |
| 286 | "ParityTypeOdd", |
| 287 | "ParityTypeMark", |
| 288 | "ParityTypeSpace", |
| 289 | "/* UNKNOWN parity keyword */", |
| 290 | "/* UNKNOWN parity keyword */", |
| 291 | "/* UNKNOWN parity keyword */" |
| 292 | }; |
| 293 | |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 294 | #endif |
| 295 | |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 296 | /* |
| 297 | * Base sizes of the raw AML resource descriptors, indexed by resource type. |
| 298 | * Zero indicates a reserved (and therefore invalid) resource type. |
| 299 | */ |
| 300 | const u8 acpi_gbl_resource_aml_sizes[] = { |
| 301 | /* Small descriptors */ |
| 302 | |
| 303 | 0, |
| 304 | 0, |
| 305 | 0, |
| 306 | 0, |
| 307 | ACPI_AML_SIZE_SMALL(struct aml_resource_irq), |
| 308 | ACPI_AML_SIZE_SMALL(struct aml_resource_dma), |
| 309 | ACPI_AML_SIZE_SMALL(struct aml_resource_start_dependent), |
| 310 | ACPI_AML_SIZE_SMALL(struct aml_resource_end_dependent), |
| 311 | ACPI_AML_SIZE_SMALL(struct aml_resource_io), |
| 312 | ACPI_AML_SIZE_SMALL(struct aml_resource_fixed_io), |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 313 | ACPI_AML_SIZE_SMALL(struct aml_resource_fixed_dma), |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 314 | 0, |
| 315 | 0, |
| 316 | 0, |
| 317 | ACPI_AML_SIZE_SMALL(struct aml_resource_vendor_small), |
| 318 | ACPI_AML_SIZE_SMALL(struct aml_resource_end_tag), |
| 319 | |
| 320 | /* Large descriptors */ |
| 321 | |
| 322 | 0, |
| 323 | ACPI_AML_SIZE_LARGE(struct aml_resource_memory24), |
| 324 | ACPI_AML_SIZE_LARGE(struct aml_resource_generic_register), |
| 325 | 0, |
| 326 | ACPI_AML_SIZE_LARGE(struct aml_resource_vendor_large), |
| 327 | ACPI_AML_SIZE_LARGE(struct aml_resource_memory32), |
| 328 | ACPI_AML_SIZE_LARGE(struct aml_resource_fixed_memory32), |
| 329 | ACPI_AML_SIZE_LARGE(struct aml_resource_address32), |
| 330 | ACPI_AML_SIZE_LARGE(struct aml_resource_address16), |
| 331 | ACPI_AML_SIZE_LARGE(struct aml_resource_extended_irq), |
| 332 | ACPI_AML_SIZE_LARGE(struct aml_resource_address64), |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 333 | ACPI_AML_SIZE_LARGE(struct aml_resource_extended_address64), |
| 334 | ACPI_AML_SIZE_LARGE(struct aml_resource_gpio), |
| 335 | 0, |
| 336 | ACPI_AML_SIZE_LARGE(struct aml_resource_common_serialbus), |
| 337 | }; |
| 338 | |
| 339 | const u8 acpi_gbl_resource_aml_serial_bus_sizes[] = { |
| 340 | 0, |
| 341 | ACPI_AML_SIZE_LARGE(struct aml_resource_i2c_serialbus), |
| 342 | ACPI_AML_SIZE_LARGE(struct aml_resource_spi_serialbus), |
| 343 | ACPI_AML_SIZE_LARGE(struct aml_resource_uart_serialbus), |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 344 | }; |
| 345 | |
| 346 | /* |
| 347 | * Resource types, used to validate the resource length field. |
| 348 | * The length of fixed-length types must match exactly, variable |
| 349 | * lengths must meet the minimum required length, etc. |
| 350 | * Zero indicates a reserved (and therefore invalid) resource type. |
| 351 | */ |
| 352 | static const u8 acpi_gbl_resource_types[] = { |
| 353 | /* Small descriptors */ |
| 354 | |
| 355 | 0, |
| 356 | 0, |
| 357 | 0, |
| 358 | 0, |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 359 | ACPI_SMALL_VARIABLE_LENGTH, /* 04 IRQ */ |
| 360 | ACPI_FIXED_LENGTH, /* 05 DMA */ |
| 361 | ACPI_SMALL_VARIABLE_LENGTH, /* 06 start_dependent_functions */ |
| 362 | ACPI_FIXED_LENGTH, /* 07 end_dependent_functions */ |
| 363 | ACPI_FIXED_LENGTH, /* 08 IO */ |
Bob Moore | ba494be | 2012-07-12 09:40:10 +0800 | [diff] [blame] | 364 | ACPI_FIXED_LENGTH, /* 09 fixed_IO */ |
| 365 | ACPI_FIXED_LENGTH, /* 0A fixed_DMA */ |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 366 | 0, |
| 367 | 0, |
| 368 | 0, |
Bob Moore | ba494be | 2012-07-12 09:40:10 +0800 | [diff] [blame] | 369 | ACPI_VARIABLE_LENGTH, /* 0E vendor_short */ |
| 370 | ACPI_FIXED_LENGTH, /* 0F end_tag */ |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 371 | |
| 372 | /* Large descriptors */ |
| 373 | |
| 374 | 0, |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 375 | ACPI_FIXED_LENGTH, /* 01 Memory24 */ |
| 376 | ACPI_FIXED_LENGTH, /* 02 generic_register */ |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 377 | 0, |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 378 | ACPI_VARIABLE_LENGTH, /* 04 vendor_long */ |
| 379 | ACPI_FIXED_LENGTH, /* 05 Memory32 */ |
| 380 | ACPI_FIXED_LENGTH, /* 06 memory32_fixed */ |
| 381 | ACPI_VARIABLE_LENGTH, /* 07 Dword* address */ |
| 382 | ACPI_VARIABLE_LENGTH, /* 08 Word* address */ |
Bob Moore | ba494be | 2012-07-12 09:40:10 +0800 | [diff] [blame] | 383 | ACPI_VARIABLE_LENGTH, /* 09 extended_IRQ */ |
| 384 | ACPI_VARIABLE_LENGTH, /* 0A Qword* address */ |
| 385 | ACPI_FIXED_LENGTH, /* 0B Extended* address */ |
| 386 | ACPI_VARIABLE_LENGTH, /* 0C Gpio* */ |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 387 | 0, |
Bob Moore | ba494be | 2012-07-12 09:40:10 +0800 | [diff] [blame] | 388 | ACPI_VARIABLE_LENGTH /* 0E *serial_bus */ |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 389 | }; |
| 390 | |
| 391 | /******************************************************************************* |
| 392 | * |
Bob Moore | 61686124 | 2006-03-17 16:44:00 -0500 | [diff] [blame] | 393 | * FUNCTION: acpi_ut_walk_aml_resources |
| 394 | * |
Bob Moore | 886308e | 2012-12-19 05:38:07 +0000 | [diff] [blame] | 395 | * PARAMETERS: walk_state - Current walk info |
| 396 | * PARAMETERS: aml - Pointer to the raw AML resource template |
| 397 | * aml_length - Length of the entire template |
| 398 | * user_function - Called once for each descriptor found. If |
| 399 | * NULL, a pointer to the end_tag is returned |
| 400 | * context - Passed to user_function |
Bob Moore | 61686124 | 2006-03-17 16:44:00 -0500 | [diff] [blame] | 401 | * |
| 402 | * RETURN: Status |
| 403 | * |
| 404 | * DESCRIPTION: Walk a raw AML resource list(buffer). User function called |
| 405 | * once for each resource found. |
| 406 | * |
| 407 | ******************************************************************************/ |
| 408 | |
| 409 | acpi_status |
Bob Moore | 886308e | 2012-12-19 05:38:07 +0000 | [diff] [blame] | 410 | acpi_ut_walk_aml_resources(struct acpi_walk_state *walk_state, |
| 411 | u8 *aml, |
Bob Moore | 61686124 | 2006-03-17 16:44:00 -0500 | [diff] [blame] | 412 | acpi_size aml_length, |
Bob Moore | 793c238 | 2006-03-31 00:00:00 -0500 | [diff] [blame] | 413 | acpi_walk_aml_callback user_function, void **context) |
Bob Moore | 61686124 | 2006-03-17 16:44:00 -0500 | [diff] [blame] | 414 | { |
| 415 | acpi_status status; |
| 416 | u8 *end_aml; |
| 417 | u8 resource_index; |
| 418 | u32 length; |
| 419 | u32 offset = 0; |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 420 | u8 end_tag[2] = { 0x79, 0x00 }; |
Bob Moore | 61686124 | 2006-03-17 16:44:00 -0500 | [diff] [blame] | 421 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 422 | ACPI_FUNCTION_TRACE(ut_walk_aml_resources); |
Bob Moore | 61686124 | 2006-03-17 16:44:00 -0500 | [diff] [blame] | 423 | |
| 424 | /* The absolute minimum resource template is one end_tag descriptor */ |
| 425 | |
| 426 | if (aml_length < sizeof(struct aml_resource_end_tag)) { |
| 427 | return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); |
| 428 | } |
| 429 | |
| 430 | /* Point to the end of the resource template buffer */ |
| 431 | |
| 432 | end_aml = aml + aml_length; |
| 433 | |
| 434 | /* Walk the byte list, abort on any invalid descriptor type or length */ |
| 435 | |
| 436 | while (aml < end_aml) { |
| 437 | |
| 438 | /* Validate the Resource Type and Resource Length */ |
| 439 | |
Bob Moore | 886308e | 2012-12-19 05:38:07 +0000 | [diff] [blame] | 440 | status = |
| 441 | acpi_ut_validate_resource(walk_state, aml, &resource_index); |
Bob Moore | 61686124 | 2006-03-17 16:44:00 -0500 | [diff] [blame] | 442 | if (ACPI_FAILURE(status)) { |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 443 | /* |
| 444 | * Exit on failure. Cannot continue because the descriptor length |
| 445 | * may be bogus also. |
| 446 | */ |
Bob Moore | 61686124 | 2006-03-17 16:44:00 -0500 | [diff] [blame] | 447 | return_ACPI_STATUS(status); |
| 448 | } |
| 449 | |
| 450 | /* Get the length of this descriptor */ |
| 451 | |
| 452 | length = acpi_ut_get_descriptor_length(aml); |
| 453 | |
| 454 | /* Invoke the user function */ |
| 455 | |
| 456 | if (user_function) { |
| 457 | status = |
| 458 | user_function(aml, length, offset, resource_index, |
| 459 | context); |
| 460 | if (ACPI_FAILURE(status)) { |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 461 | return_ACPI_STATUS(status); |
Bob Moore | 61686124 | 2006-03-17 16:44:00 -0500 | [diff] [blame] | 462 | } |
| 463 | } |
| 464 | |
| 465 | /* An end_tag descriptor terminates this resource template */ |
| 466 | |
| 467 | if (acpi_ut_get_resource_type(aml) == |
| 468 | ACPI_RESOURCE_NAME_END_TAG) { |
| 469 | /* |
| 470 | * There must be at least one more byte in the buffer for |
| 471 | * the 2nd byte of the end_tag |
| 472 | */ |
| 473 | if ((aml + 1) >= end_aml) { |
| 474 | return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); |
| 475 | } |
| 476 | |
| 477 | /* Return the pointer to the end_tag if requested */ |
| 478 | |
| 479 | if (!user_function) { |
Bob Moore | 793c238 | 2006-03-31 00:00:00 -0500 | [diff] [blame] | 480 | *context = aml; |
Bob Moore | 61686124 | 2006-03-17 16:44:00 -0500 | [diff] [blame] | 481 | } |
| 482 | |
| 483 | /* Normal exit */ |
| 484 | |
| 485 | return_ACPI_STATUS(AE_OK); |
| 486 | } |
| 487 | |
| 488 | aml += length; |
| 489 | offset += length; |
| 490 | } |
| 491 | |
| 492 | /* Did not find an end_tag descriptor */ |
| 493 | |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 494 | if (user_function) { |
| 495 | |
| 496 | /* Insert an end_tag anyway. acpi_rs_get_list_length always leaves room */ |
| 497 | |
Bob Moore | 886308e | 2012-12-19 05:38:07 +0000 | [diff] [blame] | 498 | (void)acpi_ut_validate_resource(walk_state, end_tag, |
| 499 | &resource_index); |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 500 | status = |
| 501 | user_function(end_tag, 2, offset, resource_index, context); |
| 502 | if (ACPI_FAILURE(status)) { |
| 503 | return_ACPI_STATUS(status); |
| 504 | } |
| 505 | } |
| 506 | |
| 507 | return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); |
Bob Moore | 61686124 | 2006-03-17 16:44:00 -0500 | [diff] [blame] | 508 | } |
| 509 | |
| 510 | /******************************************************************************* |
| 511 | * |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 512 | * FUNCTION: acpi_ut_validate_resource |
| 513 | * |
Bob Moore | 886308e | 2012-12-19 05:38:07 +0000 | [diff] [blame] | 514 | * PARAMETERS: walk_state - Current walk info |
| 515 | * aml - Pointer to the raw AML resource descriptor |
| 516 | * return_index - Where the resource index is returned. NULL |
| 517 | * if the index is not required. |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 518 | * |
| 519 | * RETURN: Status, and optionally the Index into the global resource tables |
| 520 | * |
| 521 | * DESCRIPTION: Validate an AML resource descriptor by checking the Resource |
| 522 | * Type and Resource Length. Returns an index into the global |
| 523 | * resource information/dispatch tables for later use. |
| 524 | * |
| 525 | ******************************************************************************/ |
| 526 | |
Bob Moore | 886308e | 2012-12-19 05:38:07 +0000 | [diff] [blame] | 527 | acpi_status |
| 528 | acpi_ut_validate_resource(struct acpi_walk_state *walk_state, |
| 529 | void *aml, u8 *return_index) |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 530 | { |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 531 | union aml_resource *aml_resource; |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 532 | u8 resource_type; |
| 533 | u8 resource_index; |
| 534 | acpi_rs_length resource_length; |
| 535 | acpi_rs_length minimum_resource_length; |
| 536 | |
| 537 | ACPI_FUNCTION_ENTRY(); |
| 538 | |
| 539 | /* |
| 540 | * 1) Validate the resource_type field (Byte 0) |
| 541 | */ |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 542 | resource_type = ACPI_GET8(aml); |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 543 | |
| 544 | /* |
| 545 | * Byte 0 contains the descriptor name (Resource Type) |
| 546 | * Examine the large/small bit in the resource header |
| 547 | */ |
| 548 | if (resource_type & ACPI_RESOURCE_NAME_LARGE) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 549 | |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 550 | /* Verify the large resource type (name) against the max */ |
| 551 | |
| 552 | if (resource_type > ACPI_RESOURCE_NAME_LARGE_MAX) { |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 553 | goto invalid_resource; |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 554 | } |
| 555 | |
| 556 | /* |
| 557 | * Large Resource Type -- bits 6:0 contain the name |
| 558 | * Translate range 0x80-0x8B to index range 0x10-0x1B |
| 559 | */ |
| 560 | resource_index = (u8) (resource_type - 0x70); |
| 561 | } else { |
| 562 | /* |
| 563 | * Small Resource Type -- bits 6:3 contain the name |
| 564 | * Shift range to index range 0x00-0x0F |
| 565 | */ |
| 566 | resource_index = (u8) |
| 567 | ((resource_type & ACPI_RESOURCE_NAME_SMALL_MASK) >> 3); |
| 568 | } |
| 569 | |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 570 | /* |
| 571 | * Check validity of the resource type, via acpi_gbl_resource_types. Zero |
| 572 | * indicates an invalid resource. |
| 573 | */ |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 574 | if (!acpi_gbl_resource_types[resource_index]) { |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 575 | goto invalid_resource; |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 576 | } |
| 577 | |
| 578 | /* |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 579 | * Validate the resource_length field. This ensures that the length |
| 580 | * is at least reasonable, and guarantees that it is non-zero. |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 581 | */ |
| 582 | resource_length = acpi_ut_get_resource_length(aml); |
| 583 | minimum_resource_length = acpi_gbl_resource_aml_sizes[resource_index]; |
| 584 | |
| 585 | /* Validate based upon the type of resource - fixed length or variable */ |
| 586 | |
| 587 | switch (acpi_gbl_resource_types[resource_index]) { |
| 588 | case ACPI_FIXED_LENGTH: |
| 589 | |
| 590 | /* Fixed length resource, length must match exactly */ |
| 591 | |
| 592 | if (resource_length != minimum_resource_length) { |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 593 | goto bad_resource_length; |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 594 | } |
| 595 | break; |
| 596 | |
| 597 | case ACPI_VARIABLE_LENGTH: |
| 598 | |
| 599 | /* Variable length resource, length must be at least the minimum */ |
| 600 | |
| 601 | if (resource_length < minimum_resource_length) { |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 602 | goto bad_resource_length; |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 603 | } |
| 604 | break; |
| 605 | |
| 606 | case ACPI_SMALL_VARIABLE_LENGTH: |
| 607 | |
| 608 | /* Small variable length resource, length can be (Min) or (Min-1) */ |
| 609 | |
| 610 | if ((resource_length > minimum_resource_length) || |
| 611 | (resource_length < (minimum_resource_length - 1))) { |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 612 | goto bad_resource_length; |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 613 | } |
| 614 | break; |
| 615 | |
| 616 | default: |
| 617 | |
| 618 | /* Shouldn't happen (because of validation earlier), but be sure */ |
| 619 | |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 620 | goto invalid_resource; |
| 621 | } |
| 622 | |
| 623 | aml_resource = ACPI_CAST_PTR(union aml_resource, aml); |
| 624 | if (resource_type == ACPI_RESOURCE_NAME_SERIAL_BUS) { |
| 625 | |
| 626 | /* Validate the bus_type field */ |
| 627 | |
| 628 | if ((aml_resource->common_serial_bus.type == 0) || |
| 629 | (aml_resource->common_serial_bus.type > |
| 630 | AML_RESOURCE_MAX_SERIALBUSTYPE)) { |
Bob Moore | 886308e | 2012-12-19 05:38:07 +0000 | [diff] [blame] | 631 | if (walk_state) { |
| 632 | ACPI_ERROR((AE_INFO, |
| 633 | "Invalid/unsupported SerialBus resource descriptor: BusType 0x%2.2X", |
| 634 | aml_resource->common_serial_bus. |
| 635 | type)); |
| 636 | } |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 637 | return (AE_AML_INVALID_RESOURCE_TYPE); |
| 638 | } |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 639 | } |
| 640 | |
| 641 | /* Optionally return the resource table index */ |
| 642 | |
| 643 | if (return_index) { |
| 644 | *return_index = resource_index; |
| 645 | } |
| 646 | |
| 647 | return (AE_OK); |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 648 | |
Lv Zheng | 10622bf | 2013-10-29 09:30:02 +0800 | [diff] [blame] | 649 | invalid_resource: |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 650 | |
Bob Moore | 886308e | 2012-12-19 05:38:07 +0000 | [diff] [blame] | 651 | if (walk_state) { |
| 652 | ACPI_ERROR((AE_INFO, |
| 653 | "Invalid/unsupported resource descriptor: Type 0x%2.2X", |
| 654 | resource_type)); |
| 655 | } |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 656 | return (AE_AML_INVALID_RESOURCE_TYPE); |
| 657 | |
Lv Zheng | 10622bf | 2013-10-29 09:30:02 +0800 | [diff] [blame] | 658 | bad_resource_length: |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 659 | |
Bob Moore | 886308e | 2012-12-19 05:38:07 +0000 | [diff] [blame] | 660 | if (walk_state) { |
| 661 | ACPI_ERROR((AE_INFO, |
| 662 | "Invalid resource descriptor length: Type " |
| 663 | "0x%2.2X, Length 0x%4.4X, MinLength 0x%4.4X", |
| 664 | resource_type, resource_length, |
| 665 | minimum_resource_length)); |
| 666 | } |
Lin Ming | e0fe0a8 | 2011-11-16 14:38:13 +0800 | [diff] [blame] | 667 | return (AE_AML_BAD_RESOURCE_LENGTH); |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 668 | } |
| 669 | |
| 670 | /******************************************************************************* |
| 671 | * |
| 672 | * FUNCTION: acpi_ut_get_resource_type |
| 673 | * |
Bob Moore | ba494be | 2012-07-12 09:40:10 +0800 | [diff] [blame] | 674 | * PARAMETERS: aml - Pointer to the raw AML resource descriptor |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 675 | * |
| 676 | * RETURN: The Resource Type with no extraneous bits (except the |
| 677 | * Large/Small descriptor bit -- this is left alone) |
| 678 | * |
| 679 | * DESCRIPTION: Extract the Resource Type/Name from the first byte of |
| 680 | * a resource descriptor. |
| 681 | * |
| 682 | ******************************************************************************/ |
| 683 | |
| 684 | u8 acpi_ut_get_resource_type(void *aml) |
| 685 | { |
| 686 | ACPI_FUNCTION_ENTRY(); |
| 687 | |
| 688 | /* |
| 689 | * Byte 0 contains the descriptor name (Resource Type) |
| 690 | * Examine the large/small bit in the resource header |
| 691 | */ |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 692 | if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 693 | |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 694 | /* Large Resource Type -- bits 6:0 contain the name */ |
| 695 | |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 696 | return (ACPI_GET8(aml)); |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 697 | } else { |
| 698 | /* Small Resource Type -- bits 6:3 contain the name */ |
| 699 | |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 700 | return ((u8) (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_SMALL_MASK)); |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 701 | } |
| 702 | } |
| 703 | |
| 704 | /******************************************************************************* |
| 705 | * |
| 706 | * FUNCTION: acpi_ut_get_resource_length |
| 707 | * |
Bob Moore | ba494be | 2012-07-12 09:40:10 +0800 | [diff] [blame] | 708 | * PARAMETERS: aml - Pointer to the raw AML resource descriptor |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 709 | * |
| 710 | * RETURN: Byte Length |
| 711 | * |
| 712 | * DESCRIPTION: Get the "Resource Length" of a raw AML descriptor. By |
| 713 | * definition, this does not include the size of the descriptor |
| 714 | * header or the length field itself. |
| 715 | * |
| 716 | ******************************************************************************/ |
| 717 | |
| 718 | u16 acpi_ut_get_resource_length(void *aml) |
| 719 | { |
| 720 | acpi_rs_length resource_length; |
| 721 | |
| 722 | ACPI_FUNCTION_ENTRY(); |
| 723 | |
| 724 | /* |
| 725 | * Byte 0 contains the descriptor name (Resource Type) |
| 726 | * Examine the large/small bit in the resource header |
| 727 | */ |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 728 | if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 729 | |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 730 | /* Large Resource type -- bytes 1-2 contain the 16-bit length */ |
| 731 | |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 732 | ACPI_MOVE_16_TO_16(&resource_length, ACPI_ADD_PTR(u8, aml, 1)); |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 733 | |
| 734 | } else { |
| 735 | /* Small Resource type -- bits 2:0 of byte 0 contain the length */ |
| 736 | |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 737 | resource_length = (u16) (ACPI_GET8(aml) & |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 738 | ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK); |
| 739 | } |
| 740 | |
| 741 | return (resource_length); |
| 742 | } |
| 743 | |
| 744 | /******************************************************************************* |
| 745 | * |
| 746 | * FUNCTION: acpi_ut_get_resource_header_length |
| 747 | * |
Bob Moore | ba494be | 2012-07-12 09:40:10 +0800 | [diff] [blame] | 748 | * PARAMETERS: aml - Pointer to the raw AML resource descriptor |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 749 | * |
| 750 | * RETURN: Length of the AML header (depends on large/small descriptor) |
| 751 | * |
| 752 | * DESCRIPTION: Get the length of the header for this resource. |
| 753 | * |
| 754 | ******************************************************************************/ |
| 755 | |
| 756 | u8 acpi_ut_get_resource_header_length(void *aml) |
| 757 | { |
| 758 | ACPI_FUNCTION_ENTRY(); |
| 759 | |
| 760 | /* Examine the large/small bit in the resource header */ |
| 761 | |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 762 | if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) { |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 763 | return (sizeof(struct aml_resource_large_header)); |
| 764 | } else { |
| 765 | return (sizeof(struct aml_resource_small_header)); |
| 766 | } |
| 767 | } |
| 768 | |
| 769 | /******************************************************************************* |
| 770 | * |
| 771 | * FUNCTION: acpi_ut_get_descriptor_length |
| 772 | * |
Bob Moore | ba494be | 2012-07-12 09:40:10 +0800 | [diff] [blame] | 773 | * PARAMETERS: aml - Pointer to the raw AML resource descriptor |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 774 | * |
| 775 | * RETURN: Byte length |
| 776 | * |
| 777 | * DESCRIPTION: Get the total byte length of a raw AML descriptor, including the |
| 778 | * length of the descriptor header and the length field itself. |
| 779 | * Used to walk descriptor lists. |
| 780 | * |
| 781 | ******************************************************************************/ |
| 782 | |
| 783 | u32 acpi_ut_get_descriptor_length(void *aml) |
| 784 | { |
| 785 | ACPI_FUNCTION_ENTRY(); |
| 786 | |
| 787 | /* |
| 788 | * Get the Resource Length (does not include header length) and add |
| 789 | * the header length (depends on if this is a small or large resource) |
| 790 | */ |
| 791 | return (acpi_ut_get_resource_length(aml) + |
| 792 | acpi_ut_get_resource_header_length(aml)); |
| 793 | } |
| 794 | |
| 795 | /******************************************************************************* |
| 796 | * |
| 797 | * FUNCTION: acpi_ut_get_resource_end_tag |
| 798 | * |
| 799 | * PARAMETERS: obj_desc - The resource template buffer object |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 800 | * end_tag - Where the pointer to the end_tag is returned |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 801 | * |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 802 | * RETURN: Status, pointer to the end tag |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 803 | * |
| 804 | * DESCRIPTION: Find the end_tag resource descriptor in an AML resource template |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 805 | * Note: allows a buffer length of zero. |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 806 | * |
| 807 | ******************************************************************************/ |
| 808 | |
| 809 | acpi_status |
Lv Zheng | 3e8214e | 2012-12-19 05:37:15 +0000 | [diff] [blame] | 810 | acpi_ut_get_resource_end_tag(union acpi_operand_object *obj_desc, u8 **end_tag) |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 811 | { |
| 812 | acpi_status status; |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 813 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 814 | ACPI_FUNCTION_TRACE(ut_get_resource_end_tag); |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 815 | |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 816 | /* Allow a buffer length of zero */ |
| 817 | |
| 818 | if (!obj_desc->buffer.length) { |
Bob Moore | 61686124 | 2006-03-17 16:44:00 -0500 | [diff] [blame] | 819 | *end_tag = obj_desc->buffer.pointer; |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 820 | return_ACPI_STATUS(AE_OK); |
| 821 | } |
| 822 | |
Bob Moore | 61686124 | 2006-03-17 16:44:00 -0500 | [diff] [blame] | 823 | /* Validate the template and get a pointer to the end_tag */ |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 824 | |
Bob Moore | 886308e | 2012-12-19 05:38:07 +0000 | [diff] [blame] | 825 | status = acpi_ut_walk_aml_resources(NULL, obj_desc->buffer.pointer, |
Bob Moore | 61686124 | 2006-03-17 16:44:00 -0500 | [diff] [blame] | 826 | obj_desc->buffer.length, NULL, |
Bob Moore | 793c238 | 2006-03-31 00:00:00 -0500 | [diff] [blame] | 827 | (void **)end_tag); |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 828 | |
Bob Moore | 61686124 | 2006-03-17 16:44:00 -0500 | [diff] [blame] | 829 | return_ACPI_STATUS(status); |
Bob Moore | 96db255 | 2005-11-02 00:00:00 -0500 | [diff] [blame] | 830 | } |