sys/external/intel-public/acpica/dist/resources/rsio.c

   1 /*******************************************************************************
   2  *
   3  * Module Name: rsio - IO and DMA resource descriptors
   4  *
   5  ******************************************************************************/
   6
   7 /******************************************************************************
   8  *
   9  * 1. Copyright Notice
  10  *
  11  * Some or all of this work - Copyright (c) 1999 - 2009, 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 __RSIO_C__
 117
 118 #include "acpi.h"
 119 #include "accommon.h"
 120 #include "acresrc.h"
 121
 122 #define _COMPONENT          ACPI_RESOURCES
 123         ACPI_MODULE_NAME    ("rsio")
 124
 125
 126 /*******************************************************************************
 127  *
 128  * AcpiRsConvertIo
 129  *
 130  ******************************************************************************/
 131
 132 ACPI_RSCONVERT_INFO     AcpiRsConvertIo[5] =
 133 {
 134     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_IO,
 135                         ACPI_RS_SIZE (ACPI_RESOURCE_IO),
 136                         ACPI_RSC_TABLE_SIZE (AcpiRsConvertIo)},
 137
 138     {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_IO,
 139                         sizeof (AML_RESOURCE_IO),
 140                         0},
 141
 142     /* Decode flag */
 143
 144     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Io.IoDecode),
 145                         AML_OFFSET (Io.Flags),
 146                         0},
 147     /*
 148      * These fields are contiguous in both the source and destination:
 149      * Address Alignment
 150      * Length
 151      * Minimum Base Address
 152      * Maximum Base Address
 153      */
 154     {ACPI_RSC_MOVE8,    ACPI_RS_OFFSET (Data.Io.Alignment),
 155                         AML_OFFSET (Io.Alignment),
 156                         2},
 157
 158     {ACPI_RSC_MOVE16,   ACPI_RS_OFFSET (Data.Io.Minimum),
 159                         AML_OFFSET (Io.Minimum),
 160                         2}
 161 };
 162
 163
 164 /*******************************************************************************
 165  *
 166  * AcpiRsConvertFixedIo
 167  *
 168  ******************************************************************************/
 169
 170 ACPI_RSCONVERT_INFO     AcpiRsConvertFixedIo[4] =
 171 {
 172     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_FIXED_IO,
 173                         ACPI_RS_SIZE (ACPI_RESOURCE_FIXED_IO),
 174                         ACPI_RSC_TABLE_SIZE (AcpiRsConvertFixedIo)},
 175
 176     {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_FIXED_IO,
 177                         sizeof (AML_RESOURCE_FIXED_IO),
 178                         0},
 179     /*
 180      * These fields are contiguous in both the source and destination:
 181      * Base Address
 182      * Length
 183      */
 184     {ACPI_RSC_MOVE8,    ACPI_RS_OFFSET (Data.FixedIo.AddressLength),
 185                         AML_OFFSET (FixedIo.AddressLength),
 186                         1},
 187
 188     {ACPI_RSC_MOVE16,   ACPI_RS_OFFSET (Data.FixedIo.Address),
 189                         AML_OFFSET (FixedIo.Address),
 190                         1}
 191 };
 192
 193
 194 /*******************************************************************************
 195  *
 196  * AcpiRsConvertGenericReg
 197  *
 198  ******************************************************************************/
 199
 200 ACPI_RSCONVERT_INFO     AcpiRsConvertGenericReg[4] =
 201 {
 202     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_GENERIC_REGISTER,
 203                         ACPI_RS_SIZE (ACPI_RESOURCE_GENERIC_REGISTER),
 204                         ACPI_RSC_TABLE_SIZE (AcpiRsConvertGenericReg)},
 205
 206     {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_GENERIC_REGISTER,
 207                         sizeof (AML_RESOURCE_GENERIC_REGISTER),
 208                         0},
 209     /*
 210      * These fields are contiguous in both the source and destination:
 211      * Address Space ID
 212      * Register Bit Width
 213      * Register Bit Offset
 214      * Access Size
 215      */
 216     {ACPI_RSC_MOVE8,    ACPI_RS_OFFSET (Data.GenericReg.SpaceId),
 217                         AML_OFFSET (GenericReg.AddressSpaceId),
 218                         4},
 219
 220     /* Get the Register Address */
 221
 222     {ACPI_RSC_MOVE64,   ACPI_RS_OFFSET (Data.GenericReg.Address),
 223                         AML_OFFSET (GenericReg.Address),
 224                         1}
 225 };
 226
 227
 228 /*******************************************************************************
 229  *
 230  * AcpiRsConvertEndDpf
 231  *
 232  ******************************************************************************/
 233
 234 ACPI_RSCONVERT_INFO   AcpiRsConvertEndDpf[2] =
 235 {
 236     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_END_DEPENDENT,
 237                         ACPI_RS_SIZE_MIN,
 238                         ACPI_RSC_TABLE_SIZE (AcpiRsConvertEndDpf)},
 239
 240     {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_END_DEPENDENT,
 241                         sizeof (AML_RESOURCE_END_DEPENDENT),
 242                         0}
 243 };
 244
 245
 246 /*******************************************************************************
 247  *
 248  * AcpiRsConvertEndTag
 249  *
 250  ******************************************************************************/
 251
 252 ACPI_RSCONVERT_INFO   AcpiRsConvertEndTag[2] =
 253 {
 254     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_END_TAG,
 255                         ACPI_RS_SIZE_MIN,
 256                         ACPI_RSC_TABLE_SIZE (AcpiRsConvertEndTag)},
 257
 258     /*
 259      * Note: The checksum field is set to zero, meaning that the resource
 260      * data is treated as if the checksum operation succeeded.
 261      * (ACPI Spec 1.0b Section 6.4.2.8)
 262      */
 263     {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_END_TAG,
 264                         sizeof (AML_RESOURCE_END_TAG),
 265                         0}
 266 };
 267
 268
 269 /*******************************************************************************
 270  *
 271  * AcpiRsGetStartDpf
 272  *
 273  ******************************************************************************/
 274
 275 ACPI_RSCONVERT_INFO   AcpiRsGetStartDpf[6] =
 276 {
 277     {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_START_DEPENDENT,
 278                         ACPI_RS_SIZE (ACPI_RESOURCE_START_DEPENDENT),
 279                         ACPI_RSC_TABLE_SIZE (AcpiRsGetStartDpf)},
 280
 281     /* Defaults for Compatibility and Performance priorities */
 282
 283     {ACPI_RSC_SET8,     ACPI_RS_OFFSET (Data.StartDpf.CompatibilityPriority),
 284                         ACPI_ACCEPTABLE_CONFIGURATION,
 285                         2},
 286
 287     /* Get the descriptor length (0 or 1 for Start Dpf descriptor) */
 288
 289     {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.StartDpf.DescriptorLength),
 290                         AML_OFFSET (StartDpf.DescriptorType),
 291                         0},
 292
 293     /* All done if there is no flag byte present in the descriptor */
 294
 295     {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_AML_LENGTH, 0, 1},
 296
 297     /* Flag byte is present, get the flags */
 298
 299     {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.StartDpf.CompatibilityPriority),
 300                         AML_OFFSET (StartDpf.Flags),
 301                         0},
 302
 303     {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.StartDpf.PerformanceRobustness),
 304                         AML_OFFSET (StartDpf.Flags),
 305                         2}
 306 };
 307
 308
 309 /*******************************************************************************
 310  *
 311  * AcpiRsSetStartDpf
 312  *
 313  ******************************************************************************/
 314
 315 ACPI_RSCONVERT_INFO   AcpiRsSetStartDpf[10] =
 316 {
 317     /* Start with a default descriptor of length 1 */
 318
 319     {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_START_DEPENDENT,
 320                         sizeof (AML_RESOURCE_START_DEPENDENT),
 321                         ACPI_RSC_TABLE_SIZE (AcpiRsSetStartDpf)},
 322
 323     /* Set the default flag values */
 324
 325     {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.StartDpf.CompatibilityPriority),
 326                         AML_OFFSET (StartDpf.Flags),
 327                         0},
 328
 329     {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.StartDpf.PerformanceRobustness),
 330                         AML_OFFSET (StartDpf.Flags),
 331                         2},
 332     /*
 333      * All done if the output descriptor length is required to be 1
 334      * (i.e., optimization to 0 bytes cannot be attempted)
 335      */
 336     {ACPI_RSC_EXIT_EQ,  ACPI_RSC_COMPARE_VALUE,
 337                         ACPI_RS_OFFSET(Data.StartDpf.DescriptorLength),
 338                         1},
 339
 340     /* Set length to 0 bytes (no flags byte) */
 341
 342     {ACPI_RSC_LENGTH,   0, 0, sizeof (AML_RESOURCE_START_DEPENDENT_NOPRIO)},
 343
 344     /*
 345      * All done if the output descriptor length is required to be 0.
 346      *
 347      * TBD: Perhaps we should check for error if input flags are not
 348      * compatible with a 0-byte descriptor.
 349      */
 350     {ACPI_RSC_EXIT_EQ,  ACPI_RSC_COMPARE_VALUE,
 351                         ACPI_RS_OFFSET(Data.StartDpf.DescriptorLength),
 352                         0},
 353
 354     /* Reset length to 1 byte (descriptor with flags byte) */
 355
 356     {ACPI_RSC_LENGTH,   0, 0, sizeof (AML_RESOURCE_START_DEPENDENT)},
 357
 358
 359     /*
 360      * All done if flags byte is necessary -- if either priority value
 361      * is not ACPI_ACCEPTABLE_CONFIGURATION
 362      */
 363     {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_VALUE,
 364                         ACPI_RS_OFFSET (Data.StartDpf.CompatibilityPriority),
 365                         ACPI_ACCEPTABLE_CONFIGURATION},
 366
 367     {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_VALUE,
 368                         ACPI_RS_OFFSET (Data.StartDpf.PerformanceRobustness),
 369                         ACPI_ACCEPTABLE_CONFIGURATION},
 370
 371     /* Flag byte is not necessary */
 372
 373     {ACPI_RSC_LENGTH,   0, 0, sizeof (AML_RESOURCE_START_DEPENDENT_NOPRIO)}
 374 };
 375
 376