1
2/******************************************************************************
3 *
4 * Module Name: exoparg6 - AML execution - opcodes with 6 arguments
5 * $Revision: 13 $
6 *
7 *****************************************************************************/
8
9/******************************************************************************
10 *
11 * 1. Copyright Notice
12 *
13 * Some or all of this work - Copyright (c) 1999 - 2004, Intel Corp.
14 * All rights reserved.
15 *
16 * 2. License
17 *
18 * 2.1. This is your license from Intel Corp. under its intellectual property
19 * rights. You may have additional license terms from the party that provided
20 * you this software, covering your right to use that party's intellectual
21 * property rights.
22 *
23 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
24 * copy of the source code appearing in this file ("Covered Code") an
25 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
26 * base code distributed originally by Intel ("Original Intel Code") to copy,
27 * make derivatives, distribute, use and display any portion of the Covered
28 * Code in any form, with the right to sublicense such rights; and
29 *
30 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
31 * license (with the right to sublicense), under only those claims of Intel
32 * patents that are infringed by the Original Intel Code, to make, use, sell,
33 * offer to sell, and import the Covered Code and derivative works thereof
34 * solely to the minimum extent necessary to exercise the above copyright
35 * license, and in no event shall the patent license extend to any additions
36 * to or modifications of the Original Intel Code. No other license or right
37 * is granted directly or by implication, estoppel or otherwise;
38 *
39 * The above copyright and patent license is granted only if the following
40 * conditions are met:
41 *
42 * 3. Conditions
43 *
44 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
45 * Redistribution of source code of any substantial portion of the Covered
46 * Code or modification with rights to further distribute source must include
47 * the above Copyright Notice, the above License, this list of Conditions,
48 * and the following Disclaimer and Export Compliance provision. In addition,
49 * Licensee must cause all Covered Code to which Licensee contributes to
50 * contain a file documenting the changes Licensee made to create that Covered
51 * Code and the date of any change. Licensee must include in that file the
52 * documentation of any changes made by any predecessor Licensee. Licensee
53 * must include a prominent statement that the modification is derived,
54 * directly or indirectly, from Original Intel Code.
55 *
56 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
57 * Redistribution of source code of any substantial portion of the Covered
58 * Code or modification without rights to further distribute source must
59 * include the following Disclaimer and Export Compliance provision in the
60 * documentation and/or other materials provided with distribution. In
61 * addition, Licensee may not authorize further sublicense of source of any
62 * portion of the Covered Code, and must include terms to the effect that the
63 * license from Licensee to its licensee is limited to the intellectual
64 * property embodied in the software Licensee provides to its licensee, and
65 * not to intellectual property embodied in modifications its licensee may
66 * make.
67 *
68 * 3.3. Redistribution of Executable. Redistribution in executable form of any
69 * substantial portion of the Covered Code or modification must reproduce the
70 * above Copyright Notice, and the following Disclaimer and Export Compliance
71 * provision in the documentation and/or other materials provided with the
72 * distribution.
73 *
74 * 3.4. Intel retains all right, title, and interest in and to the Original
75 * Intel Code.
76 *
77 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
78 * Intel shall be used in advertising or otherwise to promote the sale, use or
79 * other dealings in products derived from or relating to the Covered Code
80 * without prior written authorization from Intel.
81 *
82 * 4. Disclaimer and Export Compliance
83 *
84 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
85 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
86 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
87 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
88
89 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
90 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
91 * PARTICULAR PURPOSE.
92 *
93 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
94 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
95 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
96 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
97 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
98 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
99 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
100 * LIMITED REMEDY.
101 *
102 * 4.3. Licensee shall not export, either directly or indirectly, any of this
103 * software or system incorporating such software without first obtaining any
104 * required license or other approval from the U. S. Department of Commerce or
105 * any other agency or department of the United States Government. In the
106 * event Licensee exports any such software from the United States or
107 * re-exports any such software from a foreign destination, Licensee shall
108 * ensure that the distribution and export/re-export of the software is in
109 * compliance with all laws, regulations, orders, or other restrictions of the
110 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
111 * any of its subsidiaries will export/re-export any technical data, process,
112 * software, or service, directly or indirectly, to any country for which the
113 * United States government or any agency thereof requires an export license,
114 * other governmental approval, or letter of assurance, without first obtaining
115 * such license, approval or letter.
116 *
117 *****************************************************************************/
118
119#define __EXOPARG6_C__
120
| 1
2/******************************************************************************
3 *
4 * Module Name: exoparg6 - AML execution - opcodes with 6 arguments
5 * $Revision: 13 $
6 *
7 *****************************************************************************/
8
9/******************************************************************************
10 *
11 * 1. Copyright Notice
12 *
13 * Some or all of this work - Copyright (c) 1999 - 2004, Intel Corp.
14 * All rights reserved.
15 *
16 * 2. License
17 *
18 * 2.1. This is your license from Intel Corp. under its intellectual property
19 * rights. You may have additional license terms from the party that provided
20 * you this software, covering your right to use that party's intellectual
21 * property rights.
22 *
23 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
24 * copy of the source code appearing in this file ("Covered Code") an
25 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
26 * base code distributed originally by Intel ("Original Intel Code") to copy,
27 * make derivatives, distribute, use and display any portion of the Covered
28 * Code in any form, with the right to sublicense such rights; and
29 *
30 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
31 * license (with the right to sublicense), under only those claims of Intel
32 * patents that are infringed by the Original Intel Code, to make, use, sell,
33 * offer to sell, and import the Covered Code and derivative works thereof
34 * solely to the minimum extent necessary to exercise the above copyright
35 * license, and in no event shall the patent license extend to any additions
36 * to or modifications of the Original Intel Code. No other license or right
37 * is granted directly or by implication, estoppel or otherwise;
38 *
39 * The above copyright and patent license is granted only if the following
40 * conditions are met:
41 *
42 * 3. Conditions
43 *
44 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
45 * Redistribution of source code of any substantial portion of the Covered
46 * Code or modification with rights to further distribute source must include
47 * the above Copyright Notice, the above License, this list of Conditions,
48 * and the following Disclaimer and Export Compliance provision. In addition,
49 * Licensee must cause all Covered Code to which Licensee contributes to
50 * contain a file documenting the changes Licensee made to create that Covered
51 * Code and the date of any change. Licensee must include in that file the
52 * documentation of any changes made by any predecessor Licensee. Licensee
53 * must include a prominent statement that the modification is derived,
54 * directly or indirectly, from Original Intel Code.
55 *
56 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
57 * Redistribution of source code of any substantial portion of the Covered
58 * Code or modification without rights to further distribute source must
59 * include the following Disclaimer and Export Compliance provision in the
60 * documentation and/or other materials provided with distribution. In
61 * addition, Licensee may not authorize further sublicense of source of any
62 * portion of the Covered Code, and must include terms to the effect that the
63 * license from Licensee to its licensee is limited to the intellectual
64 * property embodied in the software Licensee provides to its licensee, and
65 * not to intellectual property embodied in modifications its licensee may
66 * make.
67 *
68 * 3.3. Redistribution of Executable. Redistribution in executable form of any
69 * substantial portion of the Covered Code or modification must reproduce the
70 * above Copyright Notice, and the following Disclaimer and Export Compliance
71 * provision in the documentation and/or other materials provided with the
72 * distribution.
73 *
74 * 3.4. Intel retains all right, title, and interest in and to the Original
75 * Intel Code.
76 *
77 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
78 * Intel shall be used in advertising or otherwise to promote the sale, use or
79 * other dealings in products derived from or relating to the Covered Code
80 * without prior written authorization from Intel.
81 *
82 * 4. Disclaimer and Export Compliance
83 *
84 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
85 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
86 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
87 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
88
89 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
90 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
91 * PARTICULAR PURPOSE.
92 *
93 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
94 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
95 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
96 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
97 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
98 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
99 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
100 * LIMITED REMEDY.
101 *
102 * 4.3. Licensee shall not export, either directly or indirectly, any of this
103 * software or system incorporating such software without first obtaining any
104 * required license or other approval from the U. S. Department of Commerce or
105 * any other agency or department of the United States Government. In the
106 * event Licensee exports any such software from the United States or
107 * re-exports any such software from a foreign destination, Licensee shall
108 * ensure that the distribution and export/re-export of the software is in
109 * compliance with all laws, regulations, orders, or other restrictions of the
110 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
111 * any of its subsidiaries will export/re-export any technical data, process,
112 * software, or service, directly or indirectly, to any country for which the
113 * United States government or any agency thereof requires an export license,
114 * other governmental approval, or letter of assurance, without first obtaining
115 * such license, approval or letter.
116 *
117 *****************************************************************************/
118
119#define __EXOPARG6_C__
120
|
125
126
127#define _COMPONENT ACPI_EXECUTER
128 ACPI_MODULE_NAME ("exoparg6")
129
130
131/*!
132 * Naming convention for AML interpreter execution routines.
133 *
134 * The routines that begin execution of AML opcodes are named with a common
135 * convention based upon the number of arguments, the number of target operands,
136 * and whether or not a value is returned:
137 *
138 * AcpiExOpcode_xA_yT_zR
139 *
140 * Where:
141 *
142 * xA - ARGUMENTS: The number of arguments (input operands) that are
143 * required for this opcode type (1 through 6 args).
144 * yT - TARGETS: The number of targets (output operands) that are required
145 * for this opcode type (0, 1, or 2 targets).
146 * zR - RETURN VALUE: Indicates whether this opcode type returns a value
147 * as the function return (0 or 1).
148 *
149 * The AcpiExOpcode* functions are called via the Dispatcher component with
150 * fully resolved operands.
151!*/
152
153
154/*******************************************************************************
155 *
156 * FUNCTION: AcpiExDoMatch
157 *
158 * PARAMETERS: MatchOp - The AML match operand
159 * PackageValue - Value from the target package
160 * MatchValue - Value to be matched
161 *
162 * RETURN: TRUE if the match is successful, FALSE otherwise
163 *
164 * DESCRIPTION: Implements the low-level match for the ASL Match operator
165 *
166 ******************************************************************************/
167
168BOOLEAN
169AcpiExDoMatch (
170 UINT32 MatchOp,
171 ACPI_INTEGER PackageValue,
172 ACPI_INTEGER MatchValue)
173{
174
175 switch (MatchOp)
176 {
177 case MATCH_MTR: /* always true */
178
179 break;
180
181
182 case MATCH_MEQ: /* true if equal */
183
184 if (PackageValue != MatchValue)
185 {
186 return (FALSE);
187 }
188 break;
189
190
191 case MATCH_MLE: /* true if less than or equal */
192
193 if (PackageValue > MatchValue)
194 {
195 return (FALSE);
196 }
197 break;
198
199
200 case MATCH_MLT: /* true if less than */
201
202 if (PackageValue >= MatchValue)
203 {
204 return (FALSE);
205 }
206 break;
207
208
209 case MATCH_MGE: /* true if greater than or equal */
210
211 if (PackageValue < MatchValue)
212 {
213 return (FALSE);
214 }
215 break;
216
217
218 case MATCH_MGT: /* true if greater than */
219
220 if (PackageValue <= MatchValue)
221 {
222 return (FALSE);
223 }
224 break;
225
226
227 default: /* undefined */
228
229 return (FALSE);
230 }
231
232
233 return TRUE;
234}
235
236
237/*******************************************************************************
238 *
239 * FUNCTION: AcpiExOpcode_6A_0T_1R
240 *
241 * PARAMETERS: WalkState - Current walk state
242 *
243 * RETURN: Status
244 *
245 * DESCRIPTION: Execute opcode with 6 arguments, no target, and a return value
246 *
247 ******************************************************************************/
248
249ACPI_STATUS
250AcpiExOpcode_6A_0T_1R (
251 ACPI_WALK_STATE *WalkState)
252{
253 ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
254 ACPI_OPERAND_OBJECT *ReturnDesc = NULL;
255 ACPI_STATUS Status = AE_OK;
256 UINT32 Index;
257 ACPI_OPERAND_OBJECT *ThisElement;
258
259
260 ACPI_FUNCTION_TRACE_STR ("ExOpcode_6A_0T_1R", AcpiPsGetOpcodeName (WalkState->Opcode));
261
262
263 switch (WalkState->Opcode)
264 {
265 case AML_MATCH_OP:
266 /*
267 * Match (SearchPackage[0], MatchOp1[1], MatchObject1[2],
268 * MatchOp2[3], MatchObject2[4], StartIndex[5])
269 */
270
271 /* Validate match comparison sub-opcodes */
272
273 if ((Operand[1]->Integer.Value > MAX_MATCH_OPERATOR) ||
274 (Operand[3]->Integer.Value > MAX_MATCH_OPERATOR))
275 {
276 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "operation encoding out of range\n"));
277 Status = AE_AML_OPERAND_VALUE;
278 goto Cleanup;
279 }
280
281 Index = (UINT32) Operand[5]->Integer.Value;
282 if (Index >= (UINT32) Operand[0]->Package.Count)
283 {
284 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Index beyond package end\n"));
285 Status = AE_AML_PACKAGE_LIMIT;
286 goto Cleanup;
287 }
288
289 ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
290 if (!ReturnDesc)
291 {
292 Status = AE_NO_MEMORY;
293 goto Cleanup;
294
295 }
296
297 /* Default return value if no match found */
298
299 ReturnDesc->Integer.Value = ACPI_INTEGER_MAX;
300
301 /*
302 * Examine each element until a match is found. Within the loop,
303 * "continue" signifies that the current element does not match
304 * and the next should be examined.
305 *
306 * Upon finding a match, the loop will terminate via "break" at
307 * the bottom. If it terminates "normally", MatchValue will be -1
308 * (its initial value) indicating that no match was found. When
309 * returned as a Number, this will produce the Ones value as specified.
310 */
311 for ( ; Index < Operand[0]->Package.Count; Index++)
312 {
313 ThisElement = Operand[0]->Package.Elements[Index];
314
315 /*
316 * Treat any NULL or non-numeric elements as non-matching.
317 */
318 if (!ThisElement ||
319 ACPI_GET_OBJECT_TYPE (ThisElement) != ACPI_TYPE_INTEGER)
320 {
321 continue;
322 }
323
324 /*
325 * "continue" (proceed to next iteration of enclosing
326 * "for" loop) signifies a non-match.
327 */
328 if (!AcpiExDoMatch ((UINT32) Operand[1]->Integer.Value,
329 ThisElement->Integer.Value, Operand[2]->Integer.Value))
330 {
331 continue;
332 }
333
334 if (!AcpiExDoMatch ((UINT32) Operand[3]->Integer.Value,
335 ThisElement->Integer.Value, Operand[4]->Integer.Value))
336 {
337 continue;
338 }
339
340 /* Match found: Index is the return value */
341
342 ReturnDesc->Integer.Value = Index;
343 break;
344 }
345
346 break;
347
348
349 case AML_LOAD_TABLE_OP:
350
351 Status = AcpiExLoadTableOp (WalkState, &ReturnDesc);
352 break;
353
354
355 default:
356
357 ACPI_REPORT_ERROR (("AcpiExOpcode_3A_0T_0R: Unknown opcode %X\n",
358 WalkState->Opcode));
359 Status = AE_AML_BAD_OPCODE;
360 goto Cleanup;
361 }
362
363
364 WalkState->ResultObj = ReturnDesc;
365
366
367Cleanup:
368
369 /* Delete return object on error */
370
371 if (ACPI_FAILURE (Status))
372 {
373 AcpiUtRemoveReference (ReturnDesc);
374 }
375
376 return_ACPI_STATUS (Status);
377}
| 125
126
127#define _COMPONENT ACPI_EXECUTER
128 ACPI_MODULE_NAME ("exoparg6")
129
130
131/*!
132 * Naming convention for AML interpreter execution routines.
133 *
134 * The routines that begin execution of AML opcodes are named with a common
135 * convention based upon the number of arguments, the number of target operands,
136 * and whether or not a value is returned:
137 *
138 * AcpiExOpcode_xA_yT_zR
139 *
140 * Where:
141 *
142 * xA - ARGUMENTS: The number of arguments (input operands) that are
143 * required for this opcode type (1 through 6 args).
144 * yT - TARGETS: The number of targets (output operands) that are required
145 * for this opcode type (0, 1, or 2 targets).
146 * zR - RETURN VALUE: Indicates whether this opcode type returns a value
147 * as the function return (0 or 1).
148 *
149 * The AcpiExOpcode* functions are called via the Dispatcher component with
150 * fully resolved operands.
151!*/
152
153
154/*******************************************************************************
155 *
156 * FUNCTION: AcpiExDoMatch
157 *
158 * PARAMETERS: MatchOp - The AML match operand
159 * PackageValue - Value from the target package
160 * MatchValue - Value to be matched
161 *
162 * RETURN: TRUE if the match is successful, FALSE otherwise
163 *
164 * DESCRIPTION: Implements the low-level match for the ASL Match operator
165 *
166 ******************************************************************************/
167
168BOOLEAN
169AcpiExDoMatch (
170 UINT32 MatchOp,
171 ACPI_INTEGER PackageValue,
172 ACPI_INTEGER MatchValue)
173{
174
175 switch (MatchOp)
176 {
177 case MATCH_MTR: /* always true */
178
179 break;
180
181
182 case MATCH_MEQ: /* true if equal */
183
184 if (PackageValue != MatchValue)
185 {
186 return (FALSE);
187 }
188 break;
189
190
191 case MATCH_MLE: /* true if less than or equal */
192
193 if (PackageValue > MatchValue)
194 {
195 return (FALSE);
196 }
197 break;
198
199
200 case MATCH_MLT: /* true if less than */
201
202 if (PackageValue >= MatchValue)
203 {
204 return (FALSE);
205 }
206 break;
207
208
209 case MATCH_MGE: /* true if greater than or equal */
210
211 if (PackageValue < MatchValue)
212 {
213 return (FALSE);
214 }
215 break;
216
217
218 case MATCH_MGT: /* true if greater than */
219
220 if (PackageValue <= MatchValue)
221 {
222 return (FALSE);
223 }
224 break;
225
226
227 default: /* undefined */
228
229 return (FALSE);
230 }
231
232
233 return TRUE;
234}
235
236
237/*******************************************************************************
238 *
239 * FUNCTION: AcpiExOpcode_6A_0T_1R
240 *
241 * PARAMETERS: WalkState - Current walk state
242 *
243 * RETURN: Status
244 *
245 * DESCRIPTION: Execute opcode with 6 arguments, no target, and a return value
246 *
247 ******************************************************************************/
248
249ACPI_STATUS
250AcpiExOpcode_6A_0T_1R (
251 ACPI_WALK_STATE *WalkState)
252{
253 ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
254 ACPI_OPERAND_OBJECT *ReturnDesc = NULL;
255 ACPI_STATUS Status = AE_OK;
256 UINT32 Index;
257 ACPI_OPERAND_OBJECT *ThisElement;
258
259
260 ACPI_FUNCTION_TRACE_STR ("ExOpcode_6A_0T_1R", AcpiPsGetOpcodeName (WalkState->Opcode));
261
262
263 switch (WalkState->Opcode)
264 {
265 case AML_MATCH_OP:
266 /*
267 * Match (SearchPackage[0], MatchOp1[1], MatchObject1[2],
268 * MatchOp2[3], MatchObject2[4], StartIndex[5])
269 */
270
271 /* Validate match comparison sub-opcodes */
272
273 if ((Operand[1]->Integer.Value > MAX_MATCH_OPERATOR) ||
274 (Operand[3]->Integer.Value > MAX_MATCH_OPERATOR))
275 {
276 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "operation encoding out of range\n"));
277 Status = AE_AML_OPERAND_VALUE;
278 goto Cleanup;
279 }
280
281 Index = (UINT32) Operand[5]->Integer.Value;
282 if (Index >= (UINT32) Operand[0]->Package.Count)
283 {
284 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Index beyond package end\n"));
285 Status = AE_AML_PACKAGE_LIMIT;
286 goto Cleanup;
287 }
288
289 ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
290 if (!ReturnDesc)
291 {
292 Status = AE_NO_MEMORY;
293 goto Cleanup;
294
295 }
296
297 /* Default return value if no match found */
298
299 ReturnDesc->Integer.Value = ACPI_INTEGER_MAX;
300
301 /*
302 * Examine each element until a match is found. Within the loop,
303 * "continue" signifies that the current element does not match
304 * and the next should be examined.
305 *
306 * Upon finding a match, the loop will terminate via "break" at
307 * the bottom. If it terminates "normally", MatchValue will be -1
308 * (its initial value) indicating that no match was found. When
309 * returned as a Number, this will produce the Ones value as specified.
310 */
311 for ( ; Index < Operand[0]->Package.Count; Index++)
312 {
313 ThisElement = Operand[0]->Package.Elements[Index];
314
315 /*
316 * Treat any NULL or non-numeric elements as non-matching.
317 */
318 if (!ThisElement ||
319 ACPI_GET_OBJECT_TYPE (ThisElement) != ACPI_TYPE_INTEGER)
320 {
321 continue;
322 }
323
324 /*
325 * "continue" (proceed to next iteration of enclosing
326 * "for" loop) signifies a non-match.
327 */
328 if (!AcpiExDoMatch ((UINT32) Operand[1]->Integer.Value,
329 ThisElement->Integer.Value, Operand[2]->Integer.Value))
330 {
331 continue;
332 }
333
334 if (!AcpiExDoMatch ((UINT32) Operand[3]->Integer.Value,
335 ThisElement->Integer.Value, Operand[4]->Integer.Value))
336 {
337 continue;
338 }
339
340 /* Match found: Index is the return value */
341
342 ReturnDesc->Integer.Value = Index;
343 break;
344 }
345
346 break;
347
348
349 case AML_LOAD_TABLE_OP:
350
351 Status = AcpiExLoadTableOp (WalkState, &ReturnDesc);
352 break;
353
354
355 default:
356
357 ACPI_REPORT_ERROR (("AcpiExOpcode_3A_0T_0R: Unknown opcode %X\n",
358 WalkState->Opcode));
359 Status = AE_AML_BAD_OPCODE;
360 goto Cleanup;
361 }
362
363
364 WalkState->ResultObj = ReturnDesc;
365
366
367Cleanup:
368
369 /* Delete return object on error */
370
371 if (ACPI_FAILURE (Status))
372 {
373 AcpiUtRemoveReference (ReturnDesc);
374 }
375
376 return_ACPI_STATUS (Status);
377}
|