1 /******************************************************************************
2 *
3 * Module Name: psopinfo - AML opcode information functions and dispatch tables
4 *
5 *****************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2014, 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 #ifdef ACPI_DEBUG_OUTPUT
80 const char *OpcodeName = "Unknown AML opcode";
81 #endif
82
83 ACPI_FUNCTION_NAME (PsGetOpcodeInfo);
84
85
86 /*
87 * Detect normal 8-bit opcode or extended 16-bit opcode
88 */
89 if (!(Opcode & 0xFF00))
90 {
91 /* Simple (8-bit) opcode: 0-255, can't index beyond table */
92
93 return (&AcpiGbl_AmlOpInfo [AcpiGbl_ShortOpIndex [(UINT8) Opcode]]);
94 }
95
96 if (((Opcode & 0xFF00) == AML_EXTENDED_OPCODE) &&
97 (((UINT8) Opcode) <= MAX_EXTENDED_OPCODE))
98 {
99 /* Valid extended (16-bit) opcode */
100
101 return (&AcpiGbl_AmlOpInfo [AcpiGbl_LongOpIndex [(UINT8) Opcode]]);
102 }
103
104 #if defined ACPI_ASL_COMPILER && defined ACPI_DEBUG_OUTPUT
105 #include "asldefine.h"
106
107 switch (Opcode)
108 {
109 case AML_RAW_DATA_BYTE:
110 OpcodeName = "-Raw Data Byte-";
111 break;
112
113 case AML_RAW_DATA_WORD:
114 OpcodeName = "-Raw Data Word-";
115 break;
116
117 case AML_RAW_DATA_DWORD:
118 OpcodeName = "-Raw Data Dword-";
119 break;
120
121 case AML_RAW_DATA_QWORD:
122 OpcodeName = "-Raw Data Qword-";
123 break;
124
125 case AML_RAW_DATA_BUFFER:
126 OpcodeName = "-Raw Data Buffer-";
127 break;
128
129 case AML_RAW_DATA_CHAIN:
130 OpcodeName = "-Raw Data Buffer Chain-";
131 break;
132
133 case AML_PACKAGE_LENGTH:
134 OpcodeName = "-Package Length-";
135 break;
136
137 case AML_UNASSIGNED_OPCODE:
138 OpcodeName = "-Unassigned Opcode-";
139 break;
140
141 case AML_DEFAULT_ARG_OP:
142 OpcodeName = "-Default Arg-";
143 break;
144
145 default:
146 break;
147 }
148 #endif
149
150 /* Unknown AML opcode */
151
152 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
153 "%s [%4.4X]\n", OpcodeName, Opcode));
154
155 return (&AcpiGbl_AmlOpInfo [_UNK]);
156 }
157
158
159 /*******************************************************************************
160 *
161 * FUNCTION: AcpiPsGetOpcodeName
162 *
163 * PARAMETERS: Opcode - The AML opcode
164 *
165 * RETURN: A pointer to the name of the opcode (ASCII String)
166 * Note: Never returns NULL.
167 *
168 * DESCRIPTION: Translate an opcode into a human-readable string
169 *
170 ******************************************************************************/
171
172 char *
173 AcpiPsGetOpcodeName (
174 UINT16 Opcode)
175 {
176 #if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
177
178 const ACPI_OPCODE_INFO *Op;
179
180
181 Op = AcpiPsGetOpcodeInfo (Opcode);
182
183 /* Always guaranteed to return a valid pointer */
184
185 return (Op->Name);
186
187 #else
188 return ("OpcodeName unavailable");
189
190 #endif
191 }
192
193
194 /*******************************************************************************
195 *
196 * FUNCTION: AcpiPsGetArgumentCount
197 *
198 * PARAMETERS: OpType - Type associated with the AML opcode
199 *
200 * RETURN: Argument count
201 *
202 * DESCRIPTION: Obtain the number of expected arguments for an AML opcode
203 *
204 ******************************************************************************/
205
206 UINT8
207 AcpiPsGetArgumentCount (
208 UINT32 OpType)
209 {
210
211 if (OpType <= AML_TYPE_EXEC_6A_0T_1R)
212 {
213 return (AcpiGbl_ArgumentCount[OpType]);
214 }
215
216 return (0);
217 }
218
219
220 /*
221 * This table is directly indexed by the opcodes It returns
222 * an index into the opcode table (AcpiGbl_AmlOpInfo)
223 */
224 const UINT8 AcpiGbl_ShortOpIndex[256] =
225 {
226 /* 0 1 2 3 4 5 6 7 */
227 /* 8 9 A B C D E F */
228 /* 0x00 */ 0x00, 0x01, _UNK, _UNK, _UNK, _UNK, 0x02, _UNK,
229 /* 0x08 */ 0x03, _UNK, 0x04, 0x05, 0x06, 0x07, 0x6E, _UNK,
230 /* 0x10 */ 0x08, 0x09, 0x0a, 0x6F, 0x0b, _UNK, _UNK, _UNK,
231 /* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
232 /* 0x20 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
233 /* 0x28 */ _UNK, _UNK, _UNK, _UNK, _UNK, 0x63, _PFX, _PFX,
234 /* 0x30 */ 0x67, 0x66, 0x68, 0x65, 0x69, 0x64, 0x6A, 0x7D,
235 /* 0x38 */ 0x7F, 0x80, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
236 /* 0x40 */ _UNK, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
237 /* 0x48 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
238 /* 0x50 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
239 /* 0x58 */ _ASC, _ASC, _ASC, _UNK, _PFX, _UNK, _PFX, _ASC,
240 /* 0x60 */ 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13,
241 /* 0x68 */ 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, _UNK,
242 /* 0x70 */ 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22,
243 /* 0x78 */ 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a,
244 /* 0x80 */ 0x2b, 0x2c, 0x2d, 0x2e, 0x70, 0x71, 0x2f, 0x30,
245 /* 0x88 */ 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x72,
246 /* 0x90 */ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x73, 0x74,
247 /* 0x98 */ 0x75, 0x76, _UNK, _UNK, 0x77, 0x78, 0x79, 0x7A,
248 /* 0xA0 */ 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x60, 0x61,
249 /* 0xA8 */ 0x62, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
250 /* 0xB0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
251 /* 0xB8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
252 /* 0xC0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
253 /* 0xC8 */ _UNK, _UNK, _UNK, _UNK, 0x44, _UNK, _UNK, _UNK,
254 /* 0xD0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
255 /* 0xD8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
256 /* 0xE0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
257 /* 0xE8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
258 /* 0xF0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
259 /* 0xF8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x45,
260 };
261
262 /*
263 * This table is indexed by the second opcode of the extended opcode
264 * pair. It returns an index into the opcode table (AcpiGbl_AmlOpInfo)
265 */
266 const UINT8 AcpiGbl_LongOpIndex[NUM_EXTENDED_OPCODE] =
267 {
268 /* 0 1 2 3 4 5 6 7 */
269 /* 8 9 A B C D E F */
270 /* 0x00 */ _UNK, 0x46, 0x47, _UNK, _UNK, _UNK, _UNK, _UNK,
271 /* 0x08 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
272 /* 0x10 */ _UNK, _UNK, 0x48, 0x49, _UNK, _UNK, _UNK, _UNK,
273 /* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x7B,
274 /* 0x20 */ 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51,
275 /* 0x28 */ 0x52, 0x53, 0x54, _UNK, _UNK, _UNK, _UNK, _UNK,
276 /* 0x30 */ 0x55, 0x56, 0x57, 0x7e, _UNK, _UNK, _UNK, _UNK,
277 /* 0x38 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
278 /* 0x40 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
279 /* 0x48 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
280 /* 0x50 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
281 /* 0x58 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
282 /* 0x60 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
283 /* 0x68 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
284 /* 0x70 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
285 /* 0x78 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
286 /* 0x80 */ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
287 /* 0x88 */ 0x7C,
288 };