1
2/******************************************************************************
3 *
4 * Module Name: exoparg6 - AML execution - opcodes with 6 arguments
5 * $Revision: 4 $
6 *
7 *****************************************************************************/
8
9/******************************************************************************
10 *
11 * 1. Copyright Notice
12 *
13 * Some or all of this work - Copyright (c) 1999, 2000, 2001, 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
121#include "acpi.h"
122#include "acinterp.h"
123#include "acparser.h"
124#include "amlcode.h"
125
126
127#define _COMPONENT ACPI_EXECUTER
128 MODULE_NAME ("exoparg6")
129
130
131
132/*!
133 * Naming convention for AML interpreter execution routines.
134 *
135 * The routines that begin execution of AML opcodes are named with a common
136 * convention based upon the number of arguments, the number of target operands,
137 * and whether or not a value is returned:
138 *
139 * AcpiExOpcode_xA_yT_zR
140 *
141 * Where:
142 *
143 * xA - ARGUMENTS: The number of arguments (input operands) that are
144 * required for this opcode type (1 through 6 args).
145 * yT - TARGETS: The number of targets (output operands) that are required
146 * for this opcode type (0, 1, or 2 targets).
147 * zR - RETURN VALUE: Indicates whether this opcode type returns a value
148 * as the function return (0 or 1).
149 *
150 * The AcpiExOpcode* functions are called via the Dispatcher component with
151 * fully resolved operands.
152!*/
153
154
155
156/*******************************************************************************
157 *
158 * FUNCTION: AcpiExDoMatch
159 *
160 * PARAMETERS: MatchOp - The AML match operand
161 * PackageValue - Value from the target package
162 * MatchValue - Value to be matched
163 *
164 * RETURN: TRUE if the match is successful, FALSE otherwise
165 *
166 * DESCRIPTION: Implements the low-level match for the ASL Match operator
167 *
168 ******************************************************************************/
169
170BOOLEAN
171AcpiExDoMatch (
172 UINT32 MatchOp,
173 ACPI_INTEGER PackageValue,
174 ACPI_INTEGER MatchValue)
175{
176
177 switch (MatchOp)
178 {
179 case MATCH_MTR: /* always true */
180
181 break;
182
183
184 case MATCH_MEQ: /* true if equal */
185
186 if (PackageValue != MatchValue)
187 {
188 return (FALSE);
189 }
190 break;
191
192
193 case MATCH_MLE: /* true if less than or equal */
194
195 if (PackageValue > MatchValue)
196 {
197 return (FALSE);
198 }
199 break;
200
201
202 case MATCH_MLT: /* true if less than */
203
204 if (PackageValue >= MatchValue)
205 {
206 return (FALSE);
207 }
208 break;
209
210
211 case MATCH_MGE: /* true if greater than or equal */
212
213 if (PackageValue < MatchValue)
214 {
215 return (FALSE);
216 }
217 break;
218
219
220 case MATCH_MGT: /* true if greater than */
221
222 if (PackageValue <= MatchValue)
223 {
224 return (FALSE);
225 }
226 break;
227
228
229 default: /* undefined */
230
231 return (FALSE);
232 }
233
234
235 return TRUE;
236}
237
238
239/*******************************************************************************
240 *
241 * FUNCTION: AcpiExOpcode_6A_0T_1R
242 *
243 * PARAMETERS: WalkState - Current walk state
244 *
245 * RETURN: Status
246 *
247 * DESCRIPTION: Execute opcode with 6 arguments, no target, and a return value
248 *
249 ******************************************************************************/
250
251ACPI_STATUS
252AcpiExOpcode_6A_0T_1R (
253 ACPI_WALK_STATE *WalkState)
254{
255 ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
256 ACPI_OPERAND_OBJECT *ReturnDesc = NULL;
257 ACPI_STATUS Status = AE_OK;
258 UINT32 Index;
259 ACPI_OPERAND_OBJECT *ThisElement;
260
261
262 FUNCTION_TRACE_STR ("ExOpcode_6A_0T_1R", AcpiPsGetOpcodeName (WalkState->Opcode));
263
264
265 switch (WalkState->Opcode)
266 {
267 case AML_MATCH_OP:
268 /*
269 * Match (SearchPackage[0], MatchOp1[1], MatchObject1[2],
270 * MatchOp2[3], MatchObject2[4], StartIndex[5])
271 */
272
273 /* Validate match comparison sub-opcodes */
274
275 if ((Operand[1]->Integer.Value > MAX_MATCH_OPERATOR) ||
276 (Operand[3]->Integer.Value > MAX_MATCH_OPERATOR))
277 {
278 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "operation encoding out of range\n"));
279 Status = AE_AML_OPERAND_VALUE;
280 goto Cleanup;
281 }
282
283 Index = (UINT32) Operand[5]->Integer.Value;
284 if (Index >= (UINT32) Operand[0]->Package.Count)
285 {
286 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Index beyond package end\n"));
287 Status = AE_AML_PACKAGE_LIMIT;
288 goto Cleanup;
289 }
290
291 ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
292 if (!ReturnDesc)
293 {
294 Status = AE_NO_MEMORY;
295 goto Cleanup;
296
297 }
298
299 /* Default return value if no match found */
300
301 ReturnDesc->Integer.Value = ACPI_INTEGER_MAX;
302
303 /*
304 * Examine each element until a match is found. Within the loop,
305 * "continue" signifies that the current element does not match
306 * and the next should be examined.
307 * Upon finding a match, the loop will terminate via "break" at
308 * the bottom. If it terminates "normally", MatchValue will be -1
309 * (its initial value) indicating that no match was found. When
310 * returned as a Number, this will produce the Ones value as specified.
311 */
312 for ( ; Index < Operand[0]->Package.Count; Index++)
313 {
314 ThisElement = Operand[0]->Package.Elements[Index];
315
316 /*
317 * Treat any NULL or non-numeric elements as non-matching.
318 * TBD [Unhandled] - if an element is a Name,
319 * should we examine its value?
320 */
321 if (!ThisElement ||
322 ThisElement->Common.Type != ACPI_TYPE_INTEGER)
323 {
324 continue;
325 }
326
327
328 /*
329 * Within these switch statements:
330 * "break" (exit from the switch) signifies a match;
331 * "continue" (proceed to next iteration of enclosing
332 * "for" loop) signifies a non-match.
333 */
334 if (!AcpiExDoMatch ((UINT32) Operand[1]->Integer.Value,
335 ThisElement->Integer.Value, Operand[2]->Integer.Value))
336 {
337 continue;
338 }
339
340
341 if (!AcpiExDoMatch ((UINT32) Operand[3]->Integer.Value,
342 ThisElement->Integer.Value, Operand[4]->Integer.Value))
343 {
344 continue;
345 }
346
347 /* Match found: Index is the return value */
348
349 ReturnDesc->Integer.Value = Index;
350 break;
351 }
352
353 break;
354
355
356 case AML_LOAD_TABLE_OP:
357
358 Status = AE_NOT_IMPLEMENTED;
359 goto Cleanup;
360 break;
361
362
363 default:
364
365 REPORT_ERROR (("AcpiExOpcode_3A_0T_0R: Unknown opcode %X\n",
366 WalkState->Opcode));
367 Status = AE_AML_BAD_OPCODE;
368 goto Cleanup;
369 break;
370 }
371
372
373 WalkState->ResultObj = ReturnDesc;
374
375
376Cleanup:
377
378 /* Delete return object on error */
379
380 if (ACPI_FAILURE (Status))
381 {
382 AcpiUtRemoveReference (ReturnDesc);
383 }
384
385 return_ACPI_STATUS (Status);
386}
2/******************************************************************************
3 *
4 * Module Name: exoparg6 - AML execution - opcodes with 6 arguments
5 * $Revision: 4 $
6 *
7 *****************************************************************************/
8
9/******************************************************************************
10 *
11 * 1. Copyright Notice
12 *
13 * Some or all of this work - Copyright (c) 1999, 2000, 2001, 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
121#include "acpi.h"
122#include "acinterp.h"
123#include "acparser.h"
124#include "amlcode.h"
125
126
127#define _COMPONENT ACPI_EXECUTER
128 MODULE_NAME ("exoparg6")
129
130
131
132/*!
133 * Naming convention for AML interpreter execution routines.
134 *
135 * The routines that begin execution of AML opcodes are named with a common
136 * convention based upon the number of arguments, the number of target operands,
137 * and whether or not a value is returned:
138 *
139 * AcpiExOpcode_xA_yT_zR
140 *
141 * Where:
142 *
143 * xA - ARGUMENTS: The number of arguments (input operands) that are
144 * required for this opcode type (1 through 6 args).
145 * yT - TARGETS: The number of targets (output operands) that are required
146 * for this opcode type (0, 1, or 2 targets).
147 * zR - RETURN VALUE: Indicates whether this opcode type returns a value
148 * as the function return (0 or 1).
149 *
150 * The AcpiExOpcode* functions are called via the Dispatcher component with
151 * fully resolved operands.
152!*/
153
154
155
156/*******************************************************************************
157 *
158 * FUNCTION: AcpiExDoMatch
159 *
160 * PARAMETERS: MatchOp - The AML match operand
161 * PackageValue - Value from the target package
162 * MatchValue - Value to be matched
163 *
164 * RETURN: TRUE if the match is successful, FALSE otherwise
165 *
166 * DESCRIPTION: Implements the low-level match for the ASL Match operator
167 *
168 ******************************************************************************/
169
170BOOLEAN
171AcpiExDoMatch (
172 UINT32 MatchOp,
173 ACPI_INTEGER PackageValue,
174 ACPI_INTEGER MatchValue)
175{
176
177 switch (MatchOp)
178 {
179 case MATCH_MTR: /* always true */
180
181 break;
182
183
184 case MATCH_MEQ: /* true if equal */
185
186 if (PackageValue != MatchValue)
187 {
188 return (FALSE);
189 }
190 break;
191
192
193 case MATCH_MLE: /* true if less than or equal */
194
195 if (PackageValue > MatchValue)
196 {
197 return (FALSE);
198 }
199 break;
200
201
202 case MATCH_MLT: /* true if less than */
203
204 if (PackageValue >= MatchValue)
205 {
206 return (FALSE);
207 }
208 break;
209
210
211 case MATCH_MGE: /* true if greater than or equal */
212
213 if (PackageValue < MatchValue)
214 {
215 return (FALSE);
216 }
217 break;
218
219
220 case MATCH_MGT: /* true if greater than */
221
222 if (PackageValue <= MatchValue)
223 {
224 return (FALSE);
225 }
226 break;
227
228
229 default: /* undefined */
230
231 return (FALSE);
232 }
233
234
235 return TRUE;
236}
237
238
239/*******************************************************************************
240 *
241 * FUNCTION: AcpiExOpcode_6A_0T_1R
242 *
243 * PARAMETERS: WalkState - Current walk state
244 *
245 * RETURN: Status
246 *
247 * DESCRIPTION: Execute opcode with 6 arguments, no target, and a return value
248 *
249 ******************************************************************************/
250
251ACPI_STATUS
252AcpiExOpcode_6A_0T_1R (
253 ACPI_WALK_STATE *WalkState)
254{
255 ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
256 ACPI_OPERAND_OBJECT *ReturnDesc = NULL;
257 ACPI_STATUS Status = AE_OK;
258 UINT32 Index;
259 ACPI_OPERAND_OBJECT *ThisElement;
260
261
262 FUNCTION_TRACE_STR ("ExOpcode_6A_0T_1R", AcpiPsGetOpcodeName (WalkState->Opcode));
263
264
265 switch (WalkState->Opcode)
266 {
267 case AML_MATCH_OP:
268 /*
269 * Match (SearchPackage[0], MatchOp1[1], MatchObject1[2],
270 * MatchOp2[3], MatchObject2[4], StartIndex[5])
271 */
272
273 /* Validate match comparison sub-opcodes */
274
275 if ((Operand[1]->Integer.Value > MAX_MATCH_OPERATOR) ||
276 (Operand[3]->Integer.Value > MAX_MATCH_OPERATOR))
277 {
278 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "operation encoding out of range\n"));
279 Status = AE_AML_OPERAND_VALUE;
280 goto Cleanup;
281 }
282
283 Index = (UINT32) Operand[5]->Integer.Value;
284 if (Index >= (UINT32) Operand[0]->Package.Count)
285 {
286 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Index beyond package end\n"));
287 Status = AE_AML_PACKAGE_LIMIT;
288 goto Cleanup;
289 }
290
291 ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
292 if (!ReturnDesc)
293 {
294 Status = AE_NO_MEMORY;
295 goto Cleanup;
296
297 }
298
299 /* Default return value if no match found */
300
301 ReturnDesc->Integer.Value = ACPI_INTEGER_MAX;
302
303 /*
304 * Examine each element until a match is found. Within the loop,
305 * "continue" signifies that the current element does not match
306 * and the next should be examined.
307 * Upon finding a match, the loop will terminate via "break" at
308 * the bottom. If it terminates "normally", MatchValue will be -1
309 * (its initial value) indicating that no match was found. When
310 * returned as a Number, this will produce the Ones value as specified.
311 */
312 for ( ; Index < Operand[0]->Package.Count; Index++)
313 {
314 ThisElement = Operand[0]->Package.Elements[Index];
315
316 /*
317 * Treat any NULL or non-numeric elements as non-matching.
318 * TBD [Unhandled] - if an element is a Name,
319 * should we examine its value?
320 */
321 if (!ThisElement ||
322 ThisElement->Common.Type != ACPI_TYPE_INTEGER)
323 {
324 continue;
325 }
326
327
328 /*
329 * Within these switch statements:
330 * "break" (exit from the switch) signifies a match;
331 * "continue" (proceed to next iteration of enclosing
332 * "for" loop) signifies a non-match.
333 */
334 if (!AcpiExDoMatch ((UINT32) Operand[1]->Integer.Value,
335 ThisElement->Integer.Value, Operand[2]->Integer.Value))
336 {
337 continue;
338 }
339
340
341 if (!AcpiExDoMatch ((UINT32) Operand[3]->Integer.Value,
342 ThisElement->Integer.Value, Operand[4]->Integer.Value))
343 {
344 continue;
345 }
346
347 /* Match found: Index is the return value */
348
349 ReturnDesc->Integer.Value = Index;
350 break;
351 }
352
353 break;
354
355
356 case AML_LOAD_TABLE_OP:
357
358 Status = AE_NOT_IMPLEMENTED;
359 goto Cleanup;
360 break;
361
362
363 default:
364
365 REPORT_ERROR (("AcpiExOpcode_3A_0T_0R: Unknown opcode %X\n",
366 WalkState->Opcode));
367 Status = AE_AML_BAD_OPCODE;
368 goto Cleanup;
369 break;
370 }
371
372
373 WalkState->ResultObj = ReturnDesc;
374
375
376Cleanup:
377
378 /* Delete return object on error */
379
380 if (ACPI_FAILURE (Status))
381 {
382 AcpiUtRemoveReference (ReturnDesc);
383 }
384
385 return_ACPI_STATUS (Status);
386}