arch/all-pc/acpica/source/components/parser/psopinfo.c

   1 /******************************************************************************
   2  *
   3  * Module Name: psopinfo - AML opcode information functions and dispatch tables
   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
  45 #include "acpi.h"
  46 #include "accommon.h"
  47 #include "acparser.h"
  48 #include "acopcode.h"
  49 #include "amlcode.h"
  50
  51
  52 #define _COMPONENT          ACPI_PARSER
  53         ACPI_MODULE_NAME    ("psopinfo")
  54
  55
  56 extern const UINT8      AcpiGbl_ShortOpIndex[];
  57 extern const UINT8      AcpiGbl_LongOpIndex[];
  58
  59 static const UINT8      AcpiGbl_ArgumentCount[] = {0,1,1,1,1,2,2,2,2,3,3,6};
  60
  61
  62 /*******************************************************************************
  63  *
  64  * FUNCTION:    AcpiPsGetOpcodeInfo
  65  *
  66  * PARAMETERS:  Opcode              - The AML opcode
  67  *
  68  * RETURN:      A pointer to the info about the opcode.
  69  *
  70  * DESCRIPTION: Find AML opcode description based on the opcode.
  71  *              NOTE: This procedure must ALWAYS return a valid pointer!
  72  *
  73  ******************************************************************************/
  74
  75 const ACPI_OPCODE_INFO *
  76 AcpiPsGetOpcodeInfo (
  77     UINT16                  Opcode)
  78 {
  79     ACPI_FUNCTION_NAME (PsGetOpcodeInfo);
  80
  81
  82     /*
  83      * Detect normal 8-bit opcode or extended 16-bit opcode
  84      */
  85     if (!(Opcode & 0xFF00))
  86     {
  87         /* Simple (8-bit) opcode: 0-255, can't index beyond table  */
  88
  89         return (&AcpiGbl_AmlOpInfo [AcpiGbl_ShortOpIndex [(UINT8) Opcode]]);
  90     }
  91
  92     if (((Opcode & 0xFF00) == AML_EXTENDED_OPCODE) &&
  93         (((UINT8) Opcode) <= MAX_EXTENDED_OPCODE))
  94     {
  95         /* Valid extended (16-bit) opcode */
  96
  97         return (&AcpiGbl_AmlOpInfo [AcpiGbl_LongOpIndex [(UINT8) Opcode]]);
  98     }
  99
 100     /* Unknown AML opcode */
 101
 102     ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
 103         "Unknown AML opcode [%4.4X]\n", Opcode));
 104
 105     return (&AcpiGbl_AmlOpInfo [_UNK]);
 106 }
 107
 108
 109 /*******************************************************************************
 110  *
 111  * FUNCTION:    AcpiPsGetOpcodeName
 112  *
 113  * PARAMETERS:  Opcode              - The AML opcode
 114  *
 115  * RETURN:      A pointer to the name of the opcode (ASCII String)
 116  *              Note: Never returns NULL.
 117  *
 118  * DESCRIPTION: Translate an opcode into a human-readable string
 119  *
 120  ******************************************************************************/
 121
 122 char *
 123 AcpiPsGetOpcodeName (
 124     UINT16                  Opcode)
 125 {
 126 #if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
 127
 128     const ACPI_OPCODE_INFO  *Op;
 129
 130
 131     Op = AcpiPsGetOpcodeInfo (Opcode);
 132
 133     /* Always guaranteed to return a valid pointer */
 134
 135     return (Op->Name);
 136
 137 #else
 138     return ("OpcodeName unavailable");
 139
 140 #endif
 141 }
 142
 143
 144 /*******************************************************************************
 145  *
 146  * FUNCTION:    AcpiPsGetArgumentCount
 147  *
 148  * PARAMETERS:  OpType              - Type associated with the AML opcode
 149  *
 150  * RETURN:      Argument count
 151  *
 152  * DESCRIPTION: Obtain the number of expected arguments for an AML opcode
 153  *
 154  ******************************************************************************/
 155
 156 UINT8
 157 AcpiPsGetArgumentCount (
 158     UINT32                  OpType)
 159 {
 160
 161     if (OpType <= AML_TYPE_EXEC_6A_0T_1R)
 162     {
 163         return (AcpiGbl_ArgumentCount[OpType]);
 164     }
 165
 166     return (0);
 167 }
 168
 169
 170 /*
 171  * This table is directly indexed by the opcodes It returns
 172  * an index into the opcode table (AcpiGbl_AmlOpInfo)
 173  */
 174 const UINT8 AcpiGbl_ShortOpIndex[256] =
 175 {
 176 /*              0     1     2     3     4     5     6     7  */
 177 /*              8     9     A     B     C     D     E     F  */
 178 /* 0x00 */    0x00, 0x01, _UNK, _UNK, _UNK, _UNK, 0x02, _UNK,
 179 /* 0x08 */    0x03, _UNK, 0x04, 0x05, 0x06, 0x07, 0x6E, _UNK,
 180 /* 0x10 */    0x08, 0x09, 0x0a, 0x6F, 0x0b, _UNK, _UNK, _UNK,
 181 /* 0x18 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 182 /* 0x20 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 183 /* 0x28 */    _UNK, _UNK, _UNK, _UNK, _UNK, 0x63, _PFX, _PFX,
 184 /* 0x30 */    0x67, 0x66, 0x68, 0x65, 0x69, 0x64, 0x6A, 0x7D,
 185 /* 0x38 */    0x7F, 0x80, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 186 /* 0x40 */    _UNK, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
 187 /* 0x48 */    _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
 188 /* 0x50 */    _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
 189 /* 0x58 */    _ASC, _ASC, _ASC, _UNK, _PFX, _UNK, _PFX, _ASC,
 190 /* 0x60 */    0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13,
 191 /* 0x68 */    0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, _UNK,
 192 /* 0x70 */    0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22,
 193 /* 0x78 */    0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a,
 194 /* 0x80 */    0x2b, 0x2c, 0x2d, 0x2e, 0x70, 0x71, 0x2f, 0x30,
 195 /* 0x88 */    0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x72,
 196 /* 0x90 */    0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x73, 0x74,
 197 /* 0x98 */    0x75, 0x76, _UNK, _UNK, 0x77, 0x78, 0x79, 0x7A,
 198 /* 0xA0 */    0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x60, 0x61,
 199 /* 0xA8 */    0x62, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 200 /* 0xB0 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 201 /* 0xB8 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 202 /* 0xC0 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 203 /* 0xC8 */    _UNK, _UNK, _UNK, _UNK, 0x44, _UNK, _UNK, _UNK,
 204 /* 0xD0 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 205 /* 0xD8 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 206 /* 0xE0 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 207 /* 0xE8 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 208 /* 0xF0 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 209 /* 0xF8 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x45,
 210 };
 211
 212 /*
 213  * This table is indexed by the second opcode of the extended opcode
 214  * pair. It returns an index into the opcode table (AcpiGbl_AmlOpInfo)
 215  */
 216 const UINT8 AcpiGbl_LongOpIndex[NUM_EXTENDED_OPCODE] =
 217 {
 218 /*              0     1     2     3     4     5     6     7  */
 219 /*              8     9     A     B     C     D     E     F  */
 220 /* 0x00 */    _UNK, 0x46, 0x47, _UNK, _UNK, _UNK, _UNK, _UNK,
 221 /* 0x08 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 222 /* 0x10 */    _UNK, _UNK, 0x48, 0x49, _UNK, _UNK, _UNK, _UNK,
 223 /* 0x18 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x7B,
 224 /* 0x20 */    0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51,
 225 /* 0x28 */    0x52, 0x53, 0x54, _UNK, _UNK, _UNK, _UNK, _UNK,
 226 /* 0x30 */    0x55, 0x56, 0x57, 0x7e, _UNK, _UNK, _UNK, _UNK,
 227 /* 0x38 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 228 /* 0x40 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 229 /* 0x48 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 230 /* 0x50 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 231 /* 0x58 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 232 /* 0x60 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 233 /* 0x68 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 234 /* 0x70 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 235 /* 0x78 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
 236 /* 0x80 */    0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
 237 /* 0x88 */    0x7C,
 238 };