drivers/acpi/resources/rsaddr.c

   1 /*******************************************************************************
   2  *
   3  * Module Name: rsaddr - Address resource descriptors (16/32/64)
   4  *
   5  ******************************************************************************/
   6
   7 /******************************************************************************
   8  *
   9  * 1. Copyright Notice
  10  *
  11  * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
  12  * All rights reserved.
  13  *
  14  * 2. License
  15  *
  16  * 2.1. This is your license from Intel Corp. under its intellectual property
  17  * rights.  You may have additional license terms from the party that provided
  18  * you this software, covering your right to use that party's intellectual
  19  * property rights.
  20  *
  21  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
  22  * copy of the source code appearing in this file ("Covered Code") an
  23  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
  24  * base code distributed originally by Intel ("Original Intel Code") to copy,
  25  * make derivatives, distribute, use and display any portion of the Covered
  26  * Code in any form, with the right to sublicense such rights; and
  27  *
  28  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
  29  * license (with the right to sublicense), under only those claims of Intel
  30  * patents that are infringed by the Original Intel Code, to make, use, sell,
  31  * offer to sell, and import the Covered Code and derivative works thereof
  32  * solely to the minimum extent necessary to exercise the above copyright
  33  * license, and in no event shall the patent license extend to any additions
  34  * to or modifications of the Original Intel Code.  No other license or right
  35  * is granted directly or by implication, estoppel or otherwise;
  36  *
  37  * The above copyright and patent license is granted only if the following
  38  * conditions are met:
  39  *
  40  * 3. Conditions
  41  *
  42  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
  43  * Redistribution of source code of any substantial portion of the Covered
  44  * Code or modification with rights to further distribute source must include
  45  * the above Copyright Notice, the above License, this list of Conditions,
  46  * and the following Disclaimer and Export Compliance provision.  In addition,
  47  * Licensee must cause all Covered Code to which Licensee contributes to
  48  * contain a file documenting the changes Licensee made to create that Covered
  49  * Code and the date of any change.  Licensee must include in that file the
  50  * documentation of any changes made by any predecessor Licensee.  Licensee
  51  * must include a prominent statement that the modification is derived,
  52  * directly or indirectly, from Original Intel Code.
  53  *
  54  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
  55  * Redistribution of source code of any substantial portion of the Covered
  56  * Code or modification without rights to further distribute source must
  57  * include the following Disclaimer and Export Compliance provision in the
  58  * documentation and/or other materials provided with distribution.  In
  59  * addition, Licensee may not authorize further sublicense of source of any
  60  * portion of the Covered Code, and must include terms to the effect that the
  61  * license from Licensee to its licensee is limited to the intellectual
  62  * property embodied in the software Licensee provides to its licensee, and
  63  * not to intellectual property embodied in modifications its licensee may
  64  * make.
  65  *
  66  * 3.3. Redistribution of Executable. Redistribution in executable form of any
  67  * substantial portion of the Covered Code or modification must reproduce the
  68  * above Copyright Notice, and the following Disclaimer and Export Compliance
  69  * provision in the documentation and/or other materials provided with the
  70  * distribution.
  71  *
  72  * 3.4. Intel retains all right, title, and interest in and to the Original
  73  * Intel Code.
  74  *
  75  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
  76  * Intel shall be used in advertising or otherwise to promote the sale, use or
  77  * other dealings in products derived from or relating to the Covered Code
  78  * without prior written authorization from Intel.
  79  *
  80  * 4. Disclaimer and Export Compliance
  81  *
  82  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
  83  * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
  84  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
  85  * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
  86  * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
  87  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
  88  * PARTICULAR PURPOSE.
  89  *
  90  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
  91  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
  92  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
  93  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
  94  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
  95  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
  96  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
  97  * LIMITED REMEDY.
  98  *
  99  * 4.3. Licensee shall not export, either directly or indirectly, any of this
 100  * software or system incorporating such software without first obtaining any
 101  * required license or other approval from the U. S. Department of Commerce or
 102  * any other agency or department of the United States Government.  In the
 103  * event Licensee exports any such software from the United States or
 104  * re-exports any such software from a foreign destination, Licensee shall
 105  * ensure that the distribution and export/re-export of the software is in
 106  * compliance with all laws, regulations, orders, or other restrictions of the
 107  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
 108  * any of its subsidiaries will export/re-export any technical data, process,
 109  * software, or service, directly or indirectly, to any country for which the
 110  * United States government or any agency thereof requires an export license,
 111  * other governmental approval, or letter of assurance, without first obtaining
 112  * such license, approval or letter.
 113  *
 114  *****************************************************************************/
 115
 116 #define __RSADDR_C__
 117
 118 #include "acpi.h"
 119 #include "accommon.h"
 120 #include "acresrc.h"
 121
 122 #define _COMPONENT          ACPI_RESOURCES
 123         ACPI_MODULE_NAME    ("rsaddr")
 124
 125
 126 /*******************************************************************************
 127  *
 128  * AcpiRsConvertAddress16 - All WORD (16-bit) address resources
 129  *
 130  ******************************************************************************/
 131
 132 ACPI_RSCONVERT_INFO     AcpiRsConvertAddress16[5] =
 133 {
 134     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_ADDRESS16,
 135                         ACPI_RS_SIZE (ACPI_RESOURCE_ADDRESS16),
 136                         ACPI_RSC_TABLE_SIZE (AcpiRsConvertAddress16)},
 137
 138     {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_ADDRESS16,
 139                         sizeof (AML_RESOURCE_ADDRESS16),
 140                         0},
 141
 142     /* Resource Type, General Flags, and Type-Specific Flags */
 143
 144     {ACPI_RSC_ADDRESS,  0, 0, 0},
 145
 146     /*
 147      * These fields are contiguous in both the source and destination:
 148      * Address Granularity
 149      * Address Range Minimum
 150      * Address Range Maximum
 151      * Address Translation Offset
 152      * Address Length
 153      */
 154     {ACPI_RSC_MOVE16,   ACPI_RS_OFFSET (Data.Address16.Granularity),
 155                         AML_OFFSET (Address16.Granularity),
 156                         5},
 157
 158     /* Optional ResourceSource (Index and String) */
 159
 160     {ACPI_RSC_SOURCE,   ACPI_RS_OFFSET (Data.Address16.ResourceSource),
 161                         0,
 162                         sizeof (AML_RESOURCE_ADDRESS16)}
 163 };
 164
 165
 166 /*******************************************************************************
 167  *
 168  * AcpiRsConvertAddress32 - All DWORD (32-bit) address resources
 169  *
 170  ******************************************************************************/
 171
 172 ACPI_RSCONVERT_INFO     AcpiRsConvertAddress32[5] =
 173 {
 174     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_ADDRESS32,
 175                         ACPI_RS_SIZE (ACPI_RESOURCE_ADDRESS32),
 176                         ACPI_RSC_TABLE_SIZE (AcpiRsConvertAddress32)},
 177
 178     {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_ADDRESS32,
 179                         sizeof (AML_RESOURCE_ADDRESS32),
 180                         0},
 181
 182     /* Resource Type, General Flags, and Type-Specific Flags */
 183
 184     {ACPI_RSC_ADDRESS,  0, 0, 0},
 185
 186     /*
 187      * These fields are contiguous in both the source and destination:
 188      * Address Granularity
 189      * Address Range Minimum
 190      * Address Range Maximum
 191      * Address Translation Offset
 192      * Address Length
 193      */
 194     {ACPI_RSC_MOVE32,   ACPI_RS_OFFSET (Data.Address32.Granularity),
 195                         AML_OFFSET (Address32.Granularity),
 196                         5},
 197
 198     /* Optional ResourceSource (Index and String) */
 199
 200     {ACPI_RSC_SOURCE,   ACPI_RS_OFFSET (Data.Address32.ResourceSource),
 201                         0,
 202                         sizeof (AML_RESOURCE_ADDRESS32)}
 203 };
 204
 205
 206 /*******************************************************************************
 207  *
 208  * AcpiRsConvertAddress64 - All QWORD (64-bit) address resources
 209  *
 210  ******************************************************************************/
 211
 212 ACPI_RSCONVERT_INFO     AcpiRsConvertAddress64[5] =
 213 {
 214     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_ADDRESS64,
 215                         ACPI_RS_SIZE (ACPI_RESOURCE_ADDRESS64),
 216                         ACPI_RSC_TABLE_SIZE (AcpiRsConvertAddress64)},
 217
 218     {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_ADDRESS64,
 219                         sizeof (AML_RESOURCE_ADDRESS64),
 220                         0},
 221
 222     /* Resource Type, General Flags, and Type-Specific Flags */
 223
 224     {ACPI_RSC_ADDRESS,  0, 0, 0},
 225
 226     /*
 227      * These fields are contiguous in both the source and destination:
 228      * Address Granularity
 229      * Address Range Minimum
 230      * Address Range Maximum
 231      * Address Translation Offset
 232      * Address Length
 233      */
 234     {ACPI_RSC_MOVE64,   ACPI_RS_OFFSET (Data.Address64.Granularity),
 235                         AML_OFFSET (Address64.Granularity),
 236                         5},
 237
 238     /* Optional ResourceSource (Index and String) */
 239
 240     {ACPI_RSC_SOURCE,   ACPI_RS_OFFSET (Data.Address64.ResourceSource),
 241                         0,
 242                         sizeof (AML_RESOURCE_ADDRESS64)}
 243 };
 244
 245
 246 /*******************************************************************************
 247  *
 248  * AcpiRsConvertExtAddress64 - All Extended (64-bit) address resources
 249  *
 250  ******************************************************************************/
 251
 252 ACPI_RSCONVERT_INFO     AcpiRsConvertExtAddress64[5] =
 253 {
 254     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64,
 255                         ACPI_RS_SIZE (ACPI_RESOURCE_EXTENDED_ADDRESS64),
 256                         ACPI_RSC_TABLE_SIZE (AcpiRsConvertExtAddress64)},
 257
 258     {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64,
 259                         sizeof (AML_RESOURCE_EXTENDED_ADDRESS64),
 260                         0},
 261
 262     /* Resource Type, General Flags, and Type-Specific Flags */
 263
 264     {ACPI_RSC_ADDRESS,  0, 0, 0},
 265
 266     /* Revision ID */
 267
 268     {ACPI_RSC_MOVE8,    ACPI_RS_OFFSET (Data.ExtAddress64.RevisionID),
 269                         AML_OFFSET (ExtAddress64.RevisionID),
 270                         1},
 271     /*
 272      * These fields are contiguous in both the source and destination:
 273      * Address Granularity
 274      * Address Range Minimum
 275      * Address Range Maximum
 276      * Address Translation Offset
 277      * Address Length
 278      * Type-Specific Attribute
 279      */
 280     {ACPI_RSC_MOVE64,   ACPI_RS_OFFSET (Data.ExtAddress64.Granularity),
 281                         AML_OFFSET (ExtAddress64.Granularity),
 282                         6}
 283 };
 284
 285
 286 /*******************************************************************************
 287  *
 288  * AcpiRsConvertGeneralFlags - Flags common to all address descriptors
 289  *
 290  ******************************************************************************/
 291
 292 static ACPI_RSCONVERT_INFO  AcpiRsConvertGeneralFlags[6] =
 293 {
 294     {ACPI_RSC_FLAGINIT, 0, AML_OFFSET (Address.Flags),
 295                         ACPI_RSC_TABLE_SIZE (AcpiRsConvertGeneralFlags)},
 296
 297     /* Resource Type (Memory, Io, BusNumber, etc.) */
 298
 299     {ACPI_RSC_MOVE8,    ACPI_RS_OFFSET (Data.Address.ResourceType),
 300                         AML_OFFSET (Address.ResourceType),
 301                         1},
 302
 303     /* General Flags - Consume, Decode, MinFixed, MaxFixed */
 304
 305     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Address.ProducerConsumer),
 306                         AML_OFFSET (Address.Flags),
 307                         0},
 308
 309     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Address.Decode),
 310                         AML_OFFSET (Address.Flags),
 311                         1},
 312
 313     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Address.MinAddressFixed),
 314                         AML_OFFSET (Address.Flags),
 315                         2},
 316
 317     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Address.MaxAddressFixed),
 318                         AML_OFFSET (Address.Flags),
 319                         3}
 320 };
 321
 322
 323 /*******************************************************************************
 324  *
 325  * AcpiRsConvertMemFlags - Flags common to Memory address descriptors
 326  *
 327  ******************************************************************************/
 328
 329 static ACPI_RSCONVERT_INFO  AcpiRsConvertMemFlags[5] =
 330 {
 331     {ACPI_RSC_FLAGINIT, 0, AML_OFFSET (Address.SpecificFlags),
 332                         ACPI_RSC_TABLE_SIZE (AcpiRsConvertMemFlags)},
 333
 334     /* Memory-specific flags */
 335
 336     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Address.Info.Mem.WriteProtect),
 337                         AML_OFFSET (Address.SpecificFlags),
 338                         0},
 339
 340     {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Address.Info.Mem.Caching),
 341                         AML_OFFSET (Address.SpecificFlags),
 342                         1},
 343
 344     {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Address.Info.Mem.RangeType),
 345                         AML_OFFSET (Address.SpecificFlags),
 346                         3},
 347
 348     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Address.Info.Mem.Translation),
 349                         AML_OFFSET (Address.SpecificFlags),
 350                         5}
 351 };
 352
 353
 354 /*******************************************************************************
 355  *
 356  * AcpiRsConvertIoFlags - Flags common to I/O address descriptors
 357  *
 358  ******************************************************************************/
 359
 360 static ACPI_RSCONVERT_INFO  AcpiRsConvertIoFlags[4] =
 361 {
 362     {ACPI_RSC_FLAGINIT, 0, AML_OFFSET (Address.SpecificFlags),
 363                         ACPI_RSC_TABLE_SIZE (AcpiRsConvertIoFlags)},
 364
 365     /* I/O-specific flags */
 366
 367     {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Address.Info.Io.RangeType),
 368                         AML_OFFSET (Address.SpecificFlags),
 369                         0},
 370
 371     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Address.Info.Io.Translation),
 372                         AML_OFFSET (Address.SpecificFlags),
 373                         4},
 374
 375     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Address.Info.Io.TranslationType),
 376                         AML_OFFSET (Address.SpecificFlags),
 377                         5}
 378 };
 379
 380
 381 /*******************************************************************************
 382  *
 383  * FUNCTION:    AcpiRsGetAddressCommon
 384  *
 385  * PARAMETERS:  Resource            - Pointer to the internal resource struct
 386  *              Aml                 - Pointer to the AML resource descriptor
 387  *
 388  * RETURN:      TRUE if the ResourceType field is OK, FALSE otherwise
 389  *
 390  * DESCRIPTION: Convert common flag fields from a raw AML resource descriptor
 391  *              to an internal resource descriptor
 392  *
 393  ******************************************************************************/
 394
 395 BOOLEAN
 396 AcpiRsGetAddressCommon (
 397     ACPI_RESOURCE           *Resource,
 398     AML_RESOURCE            *Aml)
 399 {
 400     ACPI_FUNCTION_ENTRY ();
 401
 402
 403     /* Validate the Resource Type */
 404
 405     if ((Aml->Address.ResourceType > 2) && (Aml->Address.ResourceType < 0xC0))
 406     {
 407         return (FALSE);
 408     }
 409
 410     /* Get the Resource Type and General Flags */
 411
 412     (void) AcpiRsConvertAmlToResource (Resource, Aml, AcpiRsConvertGeneralFlags);
 413
 414     /* Get the Type-Specific Flags (Memory and I/O descriptors only) */
 415
 416     if (Resource->Data.Address.ResourceType == ACPI_MEMORY_RANGE)
 417     {
 418         (void) AcpiRsConvertAmlToResource (Resource, Aml, AcpiRsConvertMemFlags);
 419     }
 420     else if (Resource->Data.Address.ResourceType == ACPI_IO_RANGE)
 421     {
 422         (void) AcpiRsConvertAmlToResource (Resource, Aml, AcpiRsConvertIoFlags);
 423     }
 424     else
 425     {
 426         /* Generic resource type, just grab the TypeSpecific byte */
 427
 428         Resource->Data.Address.Info.TypeSpecific = Aml->Address.SpecificFlags;
 429     }
 430
 431     return (TRUE);
 432 }
 433
 434
 435 /*******************************************************************************
 436  *
 437  * FUNCTION:    AcpiRsSetAddressCommon
 438  *
 439  * PARAMETERS:  Aml                 - Pointer to the AML resource descriptor
 440  *              Resource            - Pointer to the internal resource struct
 441  *
 442  * RETURN:      None
 443  *
 444  * DESCRIPTION: Convert common flag fields from a resource descriptor to an
 445  *              AML descriptor
 446  *
 447  ******************************************************************************/
 448
 449 void
 450 AcpiRsSetAddressCommon (
 451     AML_RESOURCE            *Aml,
 452     ACPI_RESOURCE           *Resource)
 453 {
 454     ACPI_FUNCTION_ENTRY ();
 455
 456
 457     /* Set the Resource Type and General Flags */
 458
 459     (void) AcpiRsConvertResourceToAml (Resource, Aml, AcpiRsConvertGeneralFlags);
 460
 461     /* Set the Type-Specific Flags (Memory and I/O descriptors only) */
 462
 463     if (Resource->Data.Address.ResourceType == ACPI_MEMORY_RANGE)
 464     {
 465         (void) AcpiRsConvertResourceToAml (Resource, Aml, AcpiRsConvertMemFlags);
 466     }
 467     else if (Resource->Data.Address.ResourceType == ACPI_IO_RANGE)
 468     {
 469         (void) AcpiRsConvertResourceToAml (Resource, Aml, AcpiRsConvertIoFlags);
 470     }
 471     else
 472     {
 473         /* Generic resource type, just copy the TypeSpecific byte */
 474
 475         Aml->Address.SpecificFlags = Resource->Data.Address.Info.TypeSpecific;
 476     }
 477 }
 478
 479