1/******************************************************************************* 2 * 3 * Module Name: dsmthdat - control method arguments and local variables
| 1/******************************************************************************* 2 * 3 * Module Name: dsmthdat - control method arguments and local variables
|
4 * $Revision: 49 $
| 4 * $Revision: 53 $
|
5 * 6 ******************************************************************************/ 7 8/****************************************************************************** 9 * 10 * 1. Copyright Notice 11 * 12 * Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp. 13 * All rights reserved. 14 * 15 * 2. License 16 * 17 * 2.1. This is your license from Intel Corp. under its intellectual property 18 * rights. You may have additional license terms from the party that provided 19 * you this software, covering your right to use that party's intellectual 20 * property rights. 21 * 22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 23 * copy of the source code appearing in this file ("Covered Code") an 24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 25 * base code distributed originally by Intel ("Original Intel Code") to copy, 26 * make derivatives, distribute, use and display any portion of the Covered 27 * Code in any form, with the right to sublicense such rights; and 28 * 29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30 * license (with the right to sublicense), under only those claims of Intel 31 * patents that are infringed by the Original Intel Code, to make, use, sell, 32 * offer to sell, and import the Covered Code and derivative works thereof 33 * solely to the minimum extent necessary to exercise the above copyright 34 * license, and in no event shall the patent license extend to any additions 35 * to or modifications of the Original Intel Code. No other license or right 36 * is granted directly or by implication, estoppel or otherwise; 37 * 38 * The above copyright and patent license is granted only if the following 39 * conditions are met: 40 * 41 * 3. Conditions 42 * 43 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44 * Redistribution of source code of any substantial portion of the Covered 45 * Code or modification with rights to further distribute source must include 46 * the above Copyright Notice, the above License, this list of Conditions, 47 * and the following Disclaimer and Export Compliance provision. In addition, 48 * Licensee must cause all Covered Code to which Licensee contributes to 49 * contain a file documenting the changes Licensee made to create that Covered 50 * Code and the date of any change. Licensee must include in that file the 51 * documentation of any changes made by any predecessor Licensee. Licensee 52 * must include a prominent statement that the modification is derived, 53 * directly or indirectly, from Original Intel Code. 54 * 55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56 * Redistribution of source code of any substantial portion of the Covered 57 * Code or modification without rights to further distribute source must 58 * include the following Disclaimer and Export Compliance provision in the 59 * documentation and/or other materials provided with distribution. In 60 * addition, Licensee may not authorize further sublicense of source of any 61 * portion of the Covered Code, and must include terms to the effect that the 62 * license from Licensee to its licensee is limited to the intellectual 63 * property embodied in the software Licensee provides to its licensee, and 64 * not to intellectual property embodied in modifications its licensee may 65 * make. 66 * 67 * 3.3. Redistribution of Executable. Redistribution in executable form of any 68 * substantial portion of the Covered Code or modification must reproduce the 69 * above Copyright Notice, and the following Disclaimer and Export Compliance 70 * provision in the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3.4. Intel retains all right, title, and interest in and to the Original 74 * Intel Code. 75 * 76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77 * Intel shall be used in advertising or otherwise to promote the sale, use or 78 * other dealings in products derived from or relating to the Covered Code 79 * without prior written authorization from Intel. 80 * 81 * 4. Disclaimer and Export Compliance 82 * 83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89 * PARTICULAR PURPOSE. 90 * 91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98 * LIMITED REMEDY. 99 * 100 * 4.3. Licensee shall not export, either directly or indirectly, any of this 101 * software or system incorporating such software without first obtaining any 102 * required license or other approval from the U. S. Department of Commerce or 103 * any other agency or department of the United States Government. In the 104 * event Licensee exports any such software from the United States or 105 * re-exports any such software from a foreign destination, Licensee shall 106 * ensure that the distribution and export/re-export of the software is in 107 * compliance with all laws, regulations, orders, or other restrictions of the 108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109 * any of its subsidiaries will export/re-export any technical data, process, 110 * software, or service, directly or indirectly, to any country for which the 111 * United States government or any agency thereof requires an export license, 112 * other governmental approval, or letter of assurance, without first obtaining 113 * such license, approval or letter. 114 * 115 *****************************************************************************/ 116 117#define __DSMTHDAT_C__ 118 119#include "acpi.h" 120#include "acparser.h" 121#include "acdispat.h" 122#include "acinterp.h" 123#include "amlcode.h" 124#include "acnamesp.h" 125 126 127#define _COMPONENT ACPI_DISPATCHER 128 MODULE_NAME ("dsmthdat") 129 130 131/******************************************************************************* 132 * 133 * FUNCTION: AcpiDsMethodDataInit 134 * 135 * PARAMETERS: WalkState - Current walk state object 136 * 137 * RETURN: Status 138 * 139 * DESCRIPTION: Initialize the data structures that hold the method's arguments 140 * and locals. The data struct is an array of NTEs for each. 141 * This allows RefOf and DeRefOf to work properly for these 142 * special data types. 143 *
| 5 * 6 ******************************************************************************/ 7 8/****************************************************************************** 9 * 10 * 1. Copyright Notice 11 * 12 * Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp. 13 * All rights reserved. 14 * 15 * 2. License 16 * 17 * 2.1. This is your license from Intel Corp. under its intellectual property 18 * rights. You may have additional license terms from the party that provided 19 * you this software, covering your right to use that party's intellectual 20 * property rights. 21 * 22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 23 * copy of the source code appearing in this file ("Covered Code") an 24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 25 * base code distributed originally by Intel ("Original Intel Code") to copy, 26 * make derivatives, distribute, use and display any portion of the Covered 27 * Code in any form, with the right to sublicense such rights; and 28 * 29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30 * license (with the right to sublicense), under only those claims of Intel 31 * patents that are infringed by the Original Intel Code, to make, use, sell, 32 * offer to sell, and import the Covered Code and derivative works thereof 33 * solely to the minimum extent necessary to exercise the above copyright 34 * license, and in no event shall the patent license extend to any additions 35 * to or modifications of the Original Intel Code. No other license or right 36 * is granted directly or by implication, estoppel or otherwise; 37 * 38 * The above copyright and patent license is granted only if the following 39 * conditions are met: 40 * 41 * 3. Conditions 42 * 43 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44 * Redistribution of source code of any substantial portion of the Covered 45 * Code or modification with rights to further distribute source must include 46 * the above Copyright Notice, the above License, this list of Conditions, 47 * and the following Disclaimer and Export Compliance provision. In addition, 48 * Licensee must cause all Covered Code to which Licensee contributes to 49 * contain a file documenting the changes Licensee made to create that Covered 50 * Code and the date of any change. Licensee must include in that file the 51 * documentation of any changes made by any predecessor Licensee. Licensee 52 * must include a prominent statement that the modification is derived, 53 * directly or indirectly, from Original Intel Code. 54 * 55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56 * Redistribution of source code of any substantial portion of the Covered 57 * Code or modification without rights to further distribute source must 58 * include the following Disclaimer and Export Compliance provision in the 59 * documentation and/or other materials provided with distribution. In 60 * addition, Licensee may not authorize further sublicense of source of any 61 * portion of the Covered Code, and must include terms to the effect that the 62 * license from Licensee to its licensee is limited to the intellectual 63 * property embodied in the software Licensee provides to its licensee, and 64 * not to intellectual property embodied in modifications its licensee may 65 * make. 66 * 67 * 3.3. Redistribution of Executable. Redistribution in executable form of any 68 * substantial portion of the Covered Code or modification must reproduce the 69 * above Copyright Notice, and the following Disclaimer and Export Compliance 70 * provision in the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3.4. Intel retains all right, title, and interest in and to the Original 74 * Intel Code. 75 * 76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77 * Intel shall be used in advertising or otherwise to promote the sale, use or 78 * other dealings in products derived from or relating to the Covered Code 79 * without prior written authorization from Intel. 80 * 81 * 4. Disclaimer and Export Compliance 82 * 83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89 * PARTICULAR PURPOSE. 90 * 91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98 * LIMITED REMEDY. 99 * 100 * 4.3. Licensee shall not export, either directly or indirectly, any of this 101 * software or system incorporating such software without first obtaining any 102 * required license or other approval from the U. S. Department of Commerce or 103 * any other agency or department of the United States Government. In the 104 * event Licensee exports any such software from the United States or 105 * re-exports any such software from a foreign destination, Licensee shall 106 * ensure that the distribution and export/re-export of the software is in 107 * compliance with all laws, regulations, orders, or other restrictions of the 108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109 * any of its subsidiaries will export/re-export any technical data, process, 110 * software, or service, directly or indirectly, to any country for which the 111 * United States government or any agency thereof requires an export license, 112 * other governmental approval, or letter of assurance, without first obtaining 113 * such license, approval or letter. 114 * 115 *****************************************************************************/ 116 117#define __DSMTHDAT_C__ 118 119#include "acpi.h" 120#include "acparser.h" 121#include "acdispat.h" 122#include "acinterp.h" 123#include "amlcode.h" 124#include "acnamesp.h" 125 126 127#define _COMPONENT ACPI_DISPATCHER 128 MODULE_NAME ("dsmthdat") 129 130 131/******************************************************************************* 132 * 133 * FUNCTION: AcpiDsMethodDataInit 134 * 135 * PARAMETERS: WalkState - Current walk state object 136 * 137 * RETURN: Status 138 * 139 * DESCRIPTION: Initialize the data structures that hold the method's arguments 140 * and locals. The data struct is an array of NTEs for each. 141 * This allows RefOf and DeRefOf to work properly for these 142 * special data types. 143 *
|
| 144 * NOTES: WalkState fields are initialized to zero by the 145 * ACPI_MEM_CALLOCATE(). 146 * 147 * A pseudo-Namespace Node is assigned to each argument and local 148 * so that RefOf() can return a pointer to the Node. 149 *
|
144 ******************************************************************************/ 145 146ACPI_STATUS 147AcpiDsMethodDataInit ( 148 ACPI_WALK_STATE *WalkState) 149{ 150 UINT32 i; 151 152 153 FUNCTION_TRACE ("DsMethodDataInit"); 154
| 150 ******************************************************************************/ 151 152ACPI_STATUS 153AcpiDsMethodDataInit ( 154 ACPI_WALK_STATE *WalkState) 155{ 156 UINT32 i; 157 158 159 FUNCTION_TRACE ("DsMethodDataInit"); 160
|
155 /* 156 * WalkState fields are initialized to zero by the 157 * ACPI_MEM_CALLOCATE(). 158 * 159 * An Node is assigned to each argument and local so 160 * that RefOf() can return a pointer to the Node. 161 */
| |
162 163 /* Init the method arguments */ 164 165 for (i = 0; i < MTH_NUM_ARGS; i++) 166 { 167 MOVE_UNALIGNED32_TO_32 (&WalkState->Arguments[i].Name, 168 NAMEOF_ARG_NTE); 169 WalkState->Arguments[i].Name |= (i << 24); 170 WalkState->Arguments[i].DataType = ACPI_DESC_TYPE_NAMED; 171 WalkState->Arguments[i].Type = ACPI_TYPE_ANY; 172 WalkState->Arguments[i].Flags = ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_ARG; 173 } 174 175 /* Init the method locals */ 176 177 for (i = 0; i < MTH_NUM_LOCALS; i++) 178 { 179 MOVE_UNALIGNED32_TO_32 (&WalkState->LocalVariables[i].Name, 180 NAMEOF_LOCAL_NTE); 181 182 WalkState->LocalVariables[i].Name |= (i << 24); 183 WalkState->LocalVariables[i].DataType = ACPI_DESC_TYPE_NAMED; 184 WalkState->LocalVariables[i].Type = ACPI_TYPE_ANY; 185 WalkState->LocalVariables[i].Flags = ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_LOCAL; 186 } 187 188 return_ACPI_STATUS (AE_OK); 189} 190 191 192/******************************************************************************* 193 * 194 * FUNCTION: AcpiDsMethodDataDeleteAll 195 * 196 * PARAMETERS: WalkState - Current walk state object 197 * 198 * RETURN: Status 199 * 200 * DESCRIPTION: Delete method locals and arguments. Arguments are only 201 * deleted if this method was called from another method. 202 * 203 ******************************************************************************/ 204 205ACPI_STATUS 206AcpiDsMethodDataDeleteAll ( 207 ACPI_WALK_STATE *WalkState) 208{ 209 UINT32 Index;
| 161 162 /* Init the method arguments */ 163 164 for (i = 0; i < MTH_NUM_ARGS; i++) 165 { 166 MOVE_UNALIGNED32_TO_32 (&WalkState->Arguments[i].Name, 167 NAMEOF_ARG_NTE); 168 WalkState->Arguments[i].Name |= (i << 24); 169 WalkState->Arguments[i].DataType = ACPI_DESC_TYPE_NAMED; 170 WalkState->Arguments[i].Type = ACPI_TYPE_ANY; 171 WalkState->Arguments[i].Flags = ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_ARG; 172 } 173 174 /* Init the method locals */ 175 176 for (i = 0; i < MTH_NUM_LOCALS; i++) 177 { 178 MOVE_UNALIGNED32_TO_32 (&WalkState->LocalVariables[i].Name, 179 NAMEOF_LOCAL_NTE); 180 181 WalkState->LocalVariables[i].Name |= (i << 24); 182 WalkState->LocalVariables[i].DataType = ACPI_DESC_TYPE_NAMED; 183 WalkState->LocalVariables[i].Type = ACPI_TYPE_ANY; 184 WalkState->LocalVariables[i].Flags = ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_LOCAL; 185 } 186 187 return_ACPI_STATUS (AE_OK); 188} 189 190 191/******************************************************************************* 192 * 193 * FUNCTION: AcpiDsMethodDataDeleteAll 194 * 195 * PARAMETERS: WalkState - Current walk state object 196 * 197 * RETURN: Status 198 * 199 * DESCRIPTION: Delete method locals and arguments. Arguments are only 200 * deleted if this method was called from another method. 201 * 202 ******************************************************************************/ 203 204ACPI_STATUS 205AcpiDsMethodDataDeleteAll ( 206 ACPI_WALK_STATE *WalkState) 207{ 208 UINT32 Index;
|
210 ACPI_OPERAND_OBJECT *Object;
| |
211 212 213 FUNCTION_TRACE ("DsMethodDataDeleteAll"); 214 215
| 209 210 211 FUNCTION_TRACE ("DsMethodDataDeleteAll"); 212 213
|
216 /* Delete the locals */
| 214 /* Detach the locals */
|
217
| 215
|
218 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Deleting local variables in %p\n", WalkState)); 219
| |
220 for (Index = 0; Index < MTH_NUM_LOCALS; Index++) 221 {
| 216 for (Index = 0; Index < MTH_NUM_LOCALS; Index++) 217 {
|
222 Object = WalkState->LocalVariables[Index].Object; 223 if (Object)
| 218 if (WalkState->LocalVariables[Index].Object)
|
224 {
| 219 {
|
225 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Deleting Local%d=%p\n", Index, Object));
| 220 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Deleting Local%d=%p\n", 221 Index, WalkState->LocalVariables[Index].Object));
|
226
| 222
|
227 /* Remove first */
| 223 /* Detach object (if present) and remove a reference */
|
228
| 224
|
229 WalkState->LocalVariables[Index].Object = NULL; 230 231 /* Was given a ref when stored */ 232 233 AcpiUtRemoveReference (Object);
| 225 AcpiNsDetachObject (&WalkState->LocalVariables[Index]);
|
234 } 235 } 236
| 226 } 227 } 228
|
| 229 /* Detach the arguments */
|
237
| 230
|
238 /* Delete the arguments */ 239 240 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Deleting arguments in %p\n", WalkState)); 241
| |
242 for (Index = 0; Index < MTH_NUM_ARGS; Index++) 243 {
| 231 for (Index = 0; Index < MTH_NUM_ARGS; Index++) 232 {
|
244 Object = WalkState->Arguments[Index].Object; 245 if (Object)
| 233 if (WalkState->Arguments[Index].Object)
|
246 {
| 234 {
|
247 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Deleting Arg%d=%p\n", Index, Object));
| 235 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Deleting Arg%d=%p\n", 236 Index, WalkState->Arguments[Index].Object));
|
248
| 237
|
249 /* Remove first */
| 238 /* Detach object (if present) and remove a reference */
|
250
| 239
|
251 WalkState->Arguments[Index].Object = NULL; 252 253 /* Was given a ref when stored */ 254 255 AcpiUtRemoveReference (Object);
| 240 AcpiNsDetachObject (&WalkState->Arguments[Index]);
|
256 } 257 } 258 259 return_ACPI_STATUS (AE_OK); 260} 261 262 263/******************************************************************************* 264 * 265 * FUNCTION: AcpiDsMethodDataInitArgs 266 * 267 * PARAMETERS: *Params - Pointer to a parameter list for the method 268 * MaxParamCount - The arg count for this method 269 * WalkState - Current walk state object 270 * 271 * RETURN: Status 272 *
| 241 } 242 } 243 244 return_ACPI_STATUS (AE_OK); 245} 246 247 248/******************************************************************************* 249 * 250 * FUNCTION: AcpiDsMethodDataInitArgs 251 * 252 * PARAMETERS: *Params - Pointer to a parameter list for the method 253 * MaxParamCount - The arg count for this method 254 * WalkState - Current walk state object 255 * 256 * RETURN: Status 257 *
|
273 * DESCRIPTION: Initialize arguments for a method
| 258 * DESCRIPTION: Initialize arguments for a method. The parameter list is a list 259 * of ACPI operand objects, either null terminated or whose length 260 * is defined by MaxParamCount.
|
274 * 275 ******************************************************************************/ 276 277ACPI_STATUS 278AcpiDsMethodDataInitArgs ( 279 ACPI_OPERAND_OBJECT **Params, 280 UINT32 MaxParamCount, 281 ACPI_WALK_STATE *WalkState) 282{ 283 ACPI_STATUS Status;
| 261 * 262 ******************************************************************************/ 263 264ACPI_STATUS 265AcpiDsMethodDataInitArgs ( 266 ACPI_OPERAND_OBJECT **Params, 267 UINT32 MaxParamCount, 268 ACPI_WALK_STATE *WalkState) 269{ 270 ACPI_STATUS Status;
|
284 UINT32 Mindex; 285 UINT32 Pindex;
| 271 UINT32 Index = 0;
|
286 287 288 FUNCTION_TRACE_PTR ("DsMethodDataInitArgs", Params); 289 290 291 if (!Params) 292 { 293 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "No param list passed to method\n")); 294 return_ACPI_STATUS (AE_OK); 295 } 296 297 /* Copy passed parameters into the new method stack frame */ 298
| 272 273 274 FUNCTION_TRACE_PTR ("DsMethodDataInitArgs", Params); 275 276 277 if (!Params) 278 { 279 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "No param list passed to method\n")); 280 return_ACPI_STATUS (AE_OK); 281 } 282 283 /* Copy passed parameters into the new method stack frame */ 284
|
299 for (Pindex = Mindex = 0; 300 (Mindex < MTH_NUM_ARGS) && (Pindex < MaxParamCount); 301 Mindex++)
| 285 while ((Index < MTH_NUM_ARGS) && (Index < MaxParamCount) && Params[Index])
|
302 {
| 286 {
|
303 if (Params[Pindex])
| 287 /* 288 * A valid parameter. 289 * Store the argument in the method/walk descriptor 290 */ 291 Status = AcpiDsStoreObjectToLocal (AML_ARG_OP, Index, Params[Index], 292 WalkState); 293 if (ACPI_FAILURE (Status))
|
304 {
| 294 {
|
305 /* 306 * A valid parameter. 307 * Set the current method argument to the 308 * Params[Pindex++] argument object descriptor 309 */ 310 Status = AcpiDsStoreObjectToLocal (AML_ARG_OP, Mindex, 311 Params[Pindex], WalkState); 312 if (ACPI_FAILURE (Status)) 313 { 314 break; 315 } 316 317 Pindex++;
| 295 return_ACPI_STATUS (Status);
|
318 } 319
| 296 } 297
|
320 else 321 { 322 break; 323 }
| 298 Index++;
|
324 } 325
| 299 } 300
|
326 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "%d args passed to method\n", Pindex));
| 301 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "%d args passed to method\n", Index));
|
327 return_ACPI_STATUS (AE_OK); 328} 329 330 331/******************************************************************************* 332 *
| 302 return_ACPI_STATUS (AE_OK); 303} 304 305 306/******************************************************************************* 307 *
|
333 * FUNCTION: AcpiDsMethodDataGetEntry
| 308 * FUNCTION: AcpiDsMethodDataGetNode
|
334 * 335 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP
| 309 * 310 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP
|
336 * Index - Which localVar or argument to get 337 * Entry - Pointer to where a pointer to the stack 338 * entry is returned.
| 311 * Index - Which localVar or argument whose type 312 * to get
|
339 * WalkState - Current walk state object 340 *
| 313 * WalkState - Current walk state object 314 *
|
341 * RETURN: Status
| 315 * RETURN: Get the Node associated with a local or arg.
|
342 *
| 316 *
|
343 * DESCRIPTION: Get the address of the object entry given by Opcode:Index 344 *
| |
345 ******************************************************************************/ 346 347ACPI_STATUS
| 317 ******************************************************************************/ 318 319ACPI_STATUS
|
348AcpiDsMethodDataGetEntry (
| 320AcpiDsMethodDataGetNode (
|
349 UINT16 Opcode, 350 UINT32 Index, 351 ACPI_WALK_STATE *WalkState,
| 321 UINT16 Opcode, 322 UINT32 Index, 323 ACPI_WALK_STATE *WalkState,
|
352 ACPI_OPERAND_OBJECT ***Entry)
| 324 ACPI_NAMESPACE_NODE **Node)
|
353{
| 325{
|
| 326 FUNCTION_TRACE ("DsMethodDataGetNode");
|
354
| 327
|
355 FUNCTION_TRACE_U32 ("DsMethodDataGetEntry", Index);
| |
356
| 328
|
357
| |
358 /*
| 329 /*
|
359 * Get the requested object. 360 * The stack "Opcode" is either a LocalVariable or an Argument
| 330 * Method Locals and Arguments are supported
|
361 */ 362 switch (Opcode) 363 {
| 331 */ 332 switch (Opcode) 333 {
|
364
| |
365 case AML_LOCAL_OP: 366 367 if (Index > MTH_MAX_LOCAL) 368 {
| 334 case AML_LOCAL_OP: 335 336 if (Index > MTH_MAX_LOCAL) 337 {
|
369 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "LocalVar index %d is invalid (max %d)\n",
| 338 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Local index %d is invalid (max %d)\n",
|
370 Index, MTH_MAX_LOCAL));
| 339 Index, MTH_MAX_LOCAL));
|
371 return_ACPI_STATUS (AE_BAD_PARAMETER);
| 340 return_ACPI_STATUS (AE_AML_INVALID_INDEX);
|
372 } 373
| 341 } 342
|
374 *Entry = (ACPI_OPERAND_OBJECT **) 375 &WalkState->LocalVariables[Index].Object;
| 343 /* Return a pointer to the pseudo-node */ 344 345 *Node = &WalkState->LocalVariables[Index];
|
376 break; 377
| 346 break; 347
|
378
| |
379 case AML_ARG_OP: 380 381 if (Index > MTH_MAX_ARG) 382 { 383 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Arg index %d is invalid (max %d)\n", 384 Index, MTH_MAX_ARG));
| 348 case AML_ARG_OP: 349 350 if (Index > MTH_MAX_ARG) 351 { 352 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Arg index %d is invalid (max %d)\n", 353 Index, MTH_MAX_ARG));
|
385 return_ACPI_STATUS (AE_BAD_PARAMETER);
| 354 return_ACPI_STATUS (AE_AML_INVALID_INDEX);
|
386 } 387
| 355 } 356
|
388 *Entry = (ACPI_OPERAND_OBJECT **) 389 &WalkState->Arguments[Index].Object;
| 357 /* Return a pointer to the pseudo-node */ 358 359 *Node = &WalkState->Arguments[Index];
|
390 break; 391
| 360 break; 361
|
392
| |
393 default: 394 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Opcode %d is invalid\n", Opcode));
| 362 default: 363 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Opcode %d is invalid\n", Opcode));
|
395 return_ACPI_STATUS (AE_BAD_PARAMETER);
| 364 return_ACPI_STATUS (AE_AML_BAD_OPCODE); 365 break;
|
396 } 397
| 366 } 367
|
398
| |
399 return_ACPI_STATUS (AE_OK); 400} 401 402 403/******************************************************************************* 404 *
| 368 return_ACPI_STATUS (AE_OK); 369} 370 371 372/******************************************************************************* 373 *
|
405 * FUNCTION: AcpiDsMethodDataSetEntry
| 374 * FUNCTION: AcpiDsMethodDataSetValue
|
406 * 407 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP 408 * Index - Which localVar or argument to get 409 * Object - Object to be inserted into the stack entry 410 * WalkState - Current walk state object 411 * 412 * RETURN: Status 413 * 414 * DESCRIPTION: Insert an object onto the method stack at entry Opcode:Index. 415 * 416 ******************************************************************************/ 417 418ACPI_STATUS
| 375 * 376 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP 377 * Index - Which localVar or argument to get 378 * Object - Object to be inserted into the stack entry 379 * WalkState - Current walk state object 380 * 381 * RETURN: Status 382 * 383 * DESCRIPTION: Insert an object onto the method stack at entry Opcode:Index. 384 * 385 ******************************************************************************/ 386 387ACPI_STATUS
|
419AcpiDsMethodDataSetEntry (
| 388AcpiDsMethodDataSetValue (
|
420 UINT16 Opcode, 421 UINT32 Index, 422 ACPI_OPERAND_OBJECT *Object, 423 ACPI_WALK_STATE *WalkState) 424{ 425 ACPI_STATUS Status;
| 389 UINT16 Opcode, 390 UINT32 Index, 391 ACPI_OPERAND_OBJECT *Object, 392 ACPI_WALK_STATE *WalkState) 393{ 394 ACPI_STATUS Status;
|
426 ACPI_OPERAND_OBJECT **Entry;
| 395 ACPI_NAMESPACE_NODE *Node;
|
427 428
| 396 397
|
429 FUNCTION_TRACE ("DsMethodDataSetEntry");
| 398 FUNCTION_TRACE ("DsMethodDataSetValue");
|
430 431
| 399 400
|
432 /* Get a pointer to the stack entry to set */
| 401 /* Get the namespace node for the arg/local */
|
433
| 402
|
434 Status = AcpiDsMethodDataGetEntry (Opcode, Index, WalkState, &Entry);
| 403 Status = AcpiDsMethodDataGetNode (Opcode, Index, WalkState, &Node);
|
435 if (ACPI_FAILURE (Status)) 436 { 437 return_ACPI_STATUS (Status); 438 } 439 440 /* Increment ref count so object can't be deleted while installed */ 441 442 AcpiUtAddReference (Object); 443 444 /* Install the object into the stack entry */ 445
| 404 if (ACPI_FAILURE (Status)) 405 { 406 return_ACPI_STATUS (Status); 407 } 408 409 /* Increment ref count so object can't be deleted while installed */ 410 411 AcpiUtAddReference (Object); 412 413 /* Install the object into the stack entry */ 414
|
446 *Entry = Object; 447
| 415 Node->Object = Object;
|
448 return_ACPI_STATUS (AE_OK); 449} 450 451 452/******************************************************************************* 453 * 454 * FUNCTION: AcpiDsMethodDataGetType 455 * 456 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP 457 * Index - Which localVar or argument whose type 458 * to get 459 * WalkState - Current walk state object 460 *
| 416 return_ACPI_STATUS (AE_OK); 417} 418 419 420/******************************************************************************* 421 * 422 * FUNCTION: AcpiDsMethodDataGetType 423 * 424 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP 425 * Index - Which localVar or argument whose type 426 * to get 427 * WalkState - Current walk state object 428 *
|
461 * RETURN: Data type of selected Arg or Local 462 * Used only in ExecMonadic2()/TypeOp.
| 429 * RETURN: Data type of current value of the selected Arg or Local
|
463 * 464 ******************************************************************************/ 465 466ACPI_OBJECT_TYPE8 467AcpiDsMethodDataGetType ( 468 UINT16 Opcode, 469 UINT32 Index, 470 ACPI_WALK_STATE *WalkState) 471{ 472 ACPI_STATUS Status;
| 430 * 431 ******************************************************************************/ 432 433ACPI_OBJECT_TYPE8 434AcpiDsMethodDataGetType ( 435 UINT16 Opcode, 436 UINT32 Index, 437 ACPI_WALK_STATE *WalkState) 438{ 439 ACPI_STATUS Status;
|
473 ACPI_OPERAND_OBJECT **Entry;
| 440 ACPI_NAMESPACE_NODE *Node;
|
474 ACPI_OPERAND_OBJECT *Object; 475 476 477 FUNCTION_TRACE ("DsMethodDataGetType"); 478 479
| 441 ACPI_OPERAND_OBJECT *Object; 442 443 444 FUNCTION_TRACE ("DsMethodDataGetType"); 445 446
|
480 /* Get a pointer to the requested stack entry */
| 447 /* Get the namespace node for the arg/local */
|
481
| 448
|
482 Status = AcpiDsMethodDataGetEntry (Opcode, Index, WalkState, &Entry);
| 449 Status = AcpiDsMethodDataGetNode (Opcode, Index, WalkState, &Node);
|
483 if (ACPI_FAILURE (Status)) 484 { 485 return_VALUE ((ACPI_TYPE_NOT_FOUND)); 486 } 487
| 450 if (ACPI_FAILURE (Status)) 451 { 452 return_VALUE ((ACPI_TYPE_NOT_FOUND)); 453 } 454
|
488 /* Get the object from the method stack */
| 455 /* Get the object */
|
489
| 456
|
490 Object = *Entry; 491 492 /* Get the object type */ 493
| 457 Object = AcpiNsGetAttachedObject (Node);
|
494 if (!Object) 495 {
| 458 if (!Object) 459 {
|
496 /* Any == 0 => "uninitialized" -- see spec 15.2.3.5.2.28 */
| 460 /* Uninitialized local/arg, return TYPE_ANY */ 461
|
497 return_VALUE (ACPI_TYPE_ANY); 498 } 499
| 462 return_VALUE (ACPI_TYPE_ANY); 463 } 464
|
| 465 /* Get the object type */ 466
|
500 return_VALUE (Object->Common.Type); 501} 502 503 504/******************************************************************************* 505 *
| 467 return_VALUE (Object->Common.Type); 468} 469 470 471/******************************************************************************* 472 *
|
506 * FUNCTION: AcpiDsMethodDataGetNode 507 * 508 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP 509 * Index - Which localVar or argument whose type 510 * to get 511 * WalkState - Current walk state object 512 * 513 * RETURN: Get the Node associated with a local or arg. 514 * 515 ******************************************************************************/ 516 517ACPI_NAMESPACE_NODE * 518AcpiDsMethodDataGetNode ( 519 UINT16 Opcode, 520 UINT32 Index, 521 ACPI_WALK_STATE *WalkState) 522{ 523 ACPI_NAMESPACE_NODE *Node = NULL; 524 525 526 FUNCTION_TRACE ("DsMethodDataGetNode"); 527 528 529 switch (Opcode) 530 { 531 532 case AML_LOCAL_OP: 533 534 if (Index > MTH_MAX_LOCAL) 535 { 536 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Local index %d is invalid (max %d)\n", 537 Index, MTH_MAX_LOCAL)); 538 return_PTR (Node); 539 } 540 541 Node = &WalkState->LocalVariables[Index]; 542 break; 543 544 545 case AML_ARG_OP: 546 547 if (Index > MTH_MAX_ARG) 548 { 549 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Arg index %d is invalid (max %d)\n", 550 Index, MTH_MAX_ARG)); 551 return_PTR (Node); 552 } 553 554 Node = &WalkState->Arguments[Index]; 555 break; 556 557 558 default: 559 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Opcode %d is invalid\n", Opcode)); 560 break; 561 } 562 563 564 return_PTR (Node); 565} 566 567 568/******************************************************************************* 569 *
| |
570 * FUNCTION: AcpiDsMethodDataGetValue 571 * 572 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP 573 * Index - Which localVar or argument to get 574 * WalkState - Current walk state object 575 * *DestDesc - Ptr to Descriptor into which selected Arg 576 * or Local value should be copied 577 * 578 * RETURN: Status 579 * 580 * DESCRIPTION: Retrieve value of selected Arg or Local from the method frame 581 * at the current top of the method stack. 582 * Used only in AcpiExResolveToValue(). 583 * 584 ******************************************************************************/ 585 586ACPI_STATUS 587AcpiDsMethodDataGetValue ( 588 UINT16 Opcode, 589 UINT32 Index, 590 ACPI_WALK_STATE *WalkState, 591 ACPI_OPERAND_OBJECT **DestDesc) 592{ 593 ACPI_STATUS Status;
| 473 * FUNCTION: AcpiDsMethodDataGetValue 474 * 475 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP 476 * Index - Which localVar or argument to get 477 * WalkState - Current walk state object 478 * *DestDesc - Ptr to Descriptor into which selected Arg 479 * or Local value should be copied 480 * 481 * RETURN: Status 482 * 483 * DESCRIPTION: Retrieve value of selected Arg or Local from the method frame 484 * at the current top of the method stack. 485 * Used only in AcpiExResolveToValue(). 486 * 487 ******************************************************************************/ 488 489ACPI_STATUS 490AcpiDsMethodDataGetValue ( 491 UINT16 Opcode, 492 UINT32 Index, 493 ACPI_WALK_STATE *WalkState, 494 ACPI_OPERAND_OBJECT **DestDesc) 495{ 496 ACPI_STATUS Status;
|
594 ACPI_OPERAND_OBJECT **Entry;
| 497 ACPI_NAMESPACE_NODE *Node;
|
595 ACPI_OPERAND_OBJECT *Object; 596 597 598 FUNCTION_TRACE ("DsMethodDataGetValue"); 599 600 601 /* Validate the object descriptor */ 602 603 if (!DestDesc) 604 { 605 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Null object descriptor pointer\n")); 606 return_ACPI_STATUS (AE_BAD_PARAMETER); 607 } 608
| 498 ACPI_OPERAND_OBJECT *Object; 499 500 501 FUNCTION_TRACE ("DsMethodDataGetValue"); 502 503 504 /* Validate the object descriptor */ 505 506 if (!DestDesc) 507 { 508 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Null object descriptor pointer\n")); 509 return_ACPI_STATUS (AE_BAD_PARAMETER); 510 } 511
|
| 512 /* Get the namespace node for the arg/local */
|
609
| 513
|
610 /* Get a pointer to the requested method stack entry */ 611 612 Status = AcpiDsMethodDataGetEntry (Opcode, Index, WalkState, &Entry);
| 514 Status = AcpiDsMethodDataGetNode (Opcode, Index, WalkState, &Node);
|
613 if (ACPI_FAILURE (Status)) 614 { 615 return_ACPI_STATUS (Status); 616 } 617
| 515 if (ACPI_FAILURE (Status)) 516 { 517 return_ACPI_STATUS (Status); 518 } 519
|
618 /* Get the object from the method stack */
| 520 /* Get the object from the node */
|
619
| 521
|
620 Object = *Entry;
| 522 Object = Node->Object;
|
621
| 523
|
622
| |
623 /* Examine the returned object, it must be valid. */ 624 625 if (!Object) 626 { 627 /*
| 524 /* Examine the returned object, it must be valid. */ 525 526 if (!Object) 527 { 528 /*
|
628 * Index points to uninitialized object stack value.
| 529 * Index points to uninitialized object.
|
629 * This means that either 1) The expected argument was 630 * not passed to the method, or 2) A local variable 631 * was referenced by the method (via the ASL) 632 * before it was initialized. Either case is an error. 633 */ 634 switch (Opcode) 635 { 636 case AML_ARG_OP: 637
| 530 * This means that either 1) The expected argument was 531 * not passed to the method, or 2) A local variable 532 * was referenced by the method (via the ASL) 533 * before it was initialized. Either case is an error. 534 */ 535 switch (Opcode) 536 { 537 case AML_ARG_OP: 538
|
638 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Uninitialized Arg[%d] at entry %p\n", 639 Index, Entry));
| 539 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Uninitialized Arg[%d] at node %p\n", 540 Index, Node));
|
640 641 return_ACPI_STATUS (AE_AML_UNINITIALIZED_ARG); 642 break; 643 644 case AML_LOCAL_OP: 645
| 541 542 return_ACPI_STATUS (AE_AML_UNINITIALIZED_ARG); 543 break; 544 545 case AML_LOCAL_OP: 546
|
646 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Uninitialized Local[%d] at entry %p\n", 647 Index, Entry));
| 547 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Uninitialized Local[%d] at node %p\n", 548 Index, Node));
|
648 649 return_ACPI_STATUS (AE_AML_UNINITIALIZED_LOCAL); 650 break; 651 } 652 } 653
| 549 550 return_ACPI_STATUS (AE_AML_UNINITIALIZED_LOCAL); 551 break; 552 } 553 } 554
|
654
| |
655 /*
| 555 /*
|
656 * Index points to initialized and valid object stack value.
| 556 * The Index points to an initialized and valid object.
|
657 * Return an additional reference to the object 658 */ 659 *DestDesc = Object; 660 AcpiUtAddReference (Object); 661 662 return_ACPI_STATUS (AE_OK); 663} 664 665 666/******************************************************************************* 667 * 668 * FUNCTION: AcpiDsMethodDataDeleteValue 669 * 670 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP 671 * Index - Which localVar or argument to delete 672 * WalkState - Current walk state object 673 * 674 * RETURN: Status 675 * 676 * DESCRIPTION: Delete the entry at Opcode:Index on the method stack. Inserts 677 * a null into the stack slot after the object is deleted. 678 * 679 ******************************************************************************/ 680 681ACPI_STATUS 682AcpiDsMethodDataDeleteValue ( 683 UINT16 Opcode, 684 UINT32 Index, 685 ACPI_WALK_STATE *WalkState) 686{ 687 ACPI_STATUS Status;
| 557 * Return an additional reference to the object 558 */ 559 *DestDesc = Object; 560 AcpiUtAddReference (Object); 561 562 return_ACPI_STATUS (AE_OK); 563} 564 565 566/******************************************************************************* 567 * 568 * FUNCTION: AcpiDsMethodDataDeleteValue 569 * 570 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP 571 * Index - Which localVar or argument to delete 572 * WalkState - Current walk state object 573 * 574 * RETURN: Status 575 * 576 * DESCRIPTION: Delete the entry at Opcode:Index on the method stack. Inserts 577 * a null into the stack slot after the object is deleted. 578 * 579 ******************************************************************************/ 580 581ACPI_STATUS 582AcpiDsMethodDataDeleteValue ( 583 UINT16 Opcode, 584 UINT32 Index, 585 ACPI_WALK_STATE *WalkState) 586{ 587 ACPI_STATUS Status;
|
688 ACPI_OPERAND_OBJECT **Entry;
| 588 ACPI_NAMESPACE_NODE *Node;
|
689 ACPI_OPERAND_OBJECT *Object; 690 691 692 FUNCTION_TRACE ("DsMethodDataDeleteValue"); 693 694
| 589 ACPI_OPERAND_OBJECT *Object; 590 591 592 FUNCTION_TRACE ("DsMethodDataDeleteValue"); 593 594
|
695 /* Get a pointer to the requested entry */
| 595 /* Get the namespace node for the arg/local */
|
696
| 596
|
697 Status = AcpiDsMethodDataGetEntry (Opcode, Index, WalkState, &Entry);
| 597 Status = AcpiDsMethodDataGetNode (Opcode, Index, WalkState, &Node);
|
698 if (ACPI_FAILURE (Status)) 699 { 700 return_ACPI_STATUS (Status); 701 } 702
| 598 if (ACPI_FAILURE (Status)) 599 { 600 return_ACPI_STATUS (Status); 601 } 602
|
703 /* Get the current entry in this slot k */
| 603 /* Get the associated object */
|
704
| 604
|
705 Object = *Entry;
| 605 Object = AcpiNsGetAttachedObject (Node);
|
706 707 /* 708 * Undefine the Arg or Local by setting its descriptor 709 * pointer to NULL. Locals/Args can contain both 710 * ACPI_OPERAND_OBJECTS and ACPI_NAMESPACE_NODEs 711 */
| 606 607 /* 608 * Undefine the Arg or Local by setting its descriptor 609 * pointer to NULL. Locals/Args can contain both 610 * ACPI_OPERAND_OBJECTS and ACPI_NAMESPACE_NODEs 611 */
|
712 *Entry = NULL;
| 612 Node->Object = NULL;
|
713 714 if ((Object) && 715 (VALID_DESCRIPTOR_TYPE (Object, ACPI_DESC_TYPE_INTERNAL))) 716 { 717 /*
| 613 614 if ((Object) && 615 (VALID_DESCRIPTOR_TYPE (Object, ACPI_DESC_TYPE_INTERNAL))) 616 { 617 /*
|
718 * There is a valid object in this slot
| 618 * There is a valid object.
|
719 * Decrement the reference count by one to balance the
| 619 * Decrement the reference count by one to balance the
|
720 * increment when the object was stored in the slot.
| 620 * increment when the object was stored.
|
721 */ 722 AcpiUtRemoveReference (Object); 723 } 724 725 return_ACPI_STATUS (AE_OK); 726} 727 728 729/******************************************************************************* 730 * 731 * FUNCTION: AcpiDsStoreObjectToLocal 732 * 733 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP 734 * Index - Which localVar or argument to set
| 621 */ 622 AcpiUtRemoveReference (Object); 623 } 624 625 return_ACPI_STATUS (AE_OK); 626} 627 628 629/******************************************************************************* 630 * 631 * FUNCTION: AcpiDsStoreObjectToLocal 632 * 633 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP 634 * Index - Which localVar or argument to set
|
735 * SrcDesc - Value to be stored
| 635 * ObjDesc - Value to be stored
|
736 * WalkState - Current walk state 737 * 738 * RETURN: Status 739 *
| 636 * WalkState - Current walk state 637 * 638 * RETURN: Status 639 *
|
740 * DESCRIPTION: Store a value in an Arg or Local. The SrcDesc is installed
| 640 * DESCRIPTION: Store a value in an Arg or Local. The ObjDesc is installed
|
741 * as the new value for the Arg or Local and the reference count
| 641 * as the new value for the Arg or Local and the reference count
|
742 * for SrcDesc is incremented.
| 642 * for ObjDesc is incremented.
|
743 * 744 ******************************************************************************/ 745 746ACPI_STATUS 747AcpiDsStoreObjectToLocal ( 748 UINT16 Opcode, 749 UINT32 Index,
| 643 * 644 ******************************************************************************/ 645 646ACPI_STATUS 647AcpiDsStoreObjectToLocal ( 648 UINT16 Opcode, 649 UINT32 Index,
|
750 ACPI_OPERAND_OBJECT *SrcDesc,
| 650 ACPI_OPERAND_OBJECT *ObjDesc,
|
751 ACPI_WALK_STATE *WalkState) 752{ 753 ACPI_STATUS Status;
| 651 ACPI_WALK_STATE *WalkState) 652{ 653 ACPI_STATUS Status;
|
754 ACPI_OPERAND_OBJECT **Entry;
| 654 ACPI_NAMESPACE_NODE *Node; 655 ACPI_OPERAND_OBJECT *CurrentObjDesc;
|
755 756
| 656 657
|
757 FUNCTION_TRACE ("DsMethodDataSetValue");
| 658 FUNCTION_TRACE ("DsStoreObjectToLocal");
|
758 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Opcode=%d Idx=%d Obj=%p\n",
| 659 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Opcode=%d Idx=%d Obj=%p\n",
|
759 Opcode, Index, SrcDesc));
| 660 Opcode, Index, ObjDesc));
|
760 761 762 /* Parameter validation */ 763
| 661 662 663 /* Parameter validation */ 664
|
764 if (!SrcDesc)
| 665 if (!ObjDesc)
|
765 { 766 return_ACPI_STATUS (AE_BAD_PARAMETER); 767 } 768
| 666 { 667 return_ACPI_STATUS (AE_BAD_PARAMETER); 668 } 669
|
| 670 /* Get the namespace node for the arg/local */
|
769
| 671
|
770 /* Get a pointer to the requested method stack entry */ 771 772 Status = AcpiDsMethodDataGetEntry (Opcode, Index, WalkState, &Entry);
| 672 Status = AcpiDsMethodDataGetNode (Opcode, Index, WalkState, &Node);
|
773 if (ACPI_FAILURE (Status)) 774 {
| 673 if (ACPI_FAILURE (Status)) 674 {
|
775 goto Cleanup;
| 675 return_ACPI_STATUS (Status);
|
776 } 777
| 676 } 677
|
778 if (*Entry == SrcDesc)
| 678 CurrentObjDesc = AcpiNsGetAttachedObject (Node); 679 if (CurrentObjDesc == ObjDesc)
|
779 {
| 680 {
|
780 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Obj=%p already installed!\n", SrcDesc)); 781 goto Cleanup;
| 681 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Obj=%p already installed!\n", ObjDesc)); 682 return_ACPI_STATUS (Status);
|
782 } 783
| 683 } 684
|
784
| |
785 /* 786 * If there is an object already in this slot, we either 787 * have to delete it, or if this is an argument and there 788 * is an object reference stored there, we have to do 789 * an indirect store! 790 */
| 685 /* 686 * If there is an object already in this slot, we either 687 * have to delete it, or if this is an argument and there 688 * is an object reference stored there, we have to do 689 * an indirect store! 690 */
|
791 if (*Entry)
| 691 if (CurrentObjDesc)
|
792 { 793 /* 794 * Check for an indirect store if an argument 795 * contains an object reference (stored as an Node). 796 * We don't allow this automatic dereferencing for 797 * locals, since a store to a local should overwrite 798 * anything there, including an object reference. 799 * 800 * If both Arg0 and Local0 contain RefOf (Local4): 801 * 802 * Store (1, Arg0) - Causes indirect store to local4 803 * Store (1, Local0) - Stores 1 in local0, overwriting 804 * the reference to local4 805 * Store (1, DeRefof (Local0)) - Causes indirect store to local4 806 * 807 * Weird, but true. 808 */ 809 if ((Opcode == AML_ARG_OP) &&
| 692 { 693 /* 694 * Check for an indirect store if an argument 695 * contains an object reference (stored as an Node). 696 * We don't allow this automatic dereferencing for 697 * locals, since a store to a local should overwrite 698 * anything there, including an object reference. 699 * 700 * If both Arg0 and Local0 contain RefOf (Local4): 701 * 702 * Store (1, Arg0) - Causes indirect store to local4 703 * Store (1, Local0) - Stores 1 in local0, overwriting 704 * the reference to local4 705 * Store (1, DeRefof (Local0)) - Causes indirect store to local4 706 * 707 * Weird, but true. 708 */ 709 if ((Opcode == AML_ARG_OP) &&
|
810 (VALID_DESCRIPTOR_TYPE (*Entry, ACPI_DESC_TYPE_NAMED)))
| 710 (VALID_DESCRIPTOR_TYPE (CurrentObjDesc, ACPI_DESC_TYPE_NAMED)))
|
811 { 812 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
| 711 { 712 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
|
813 "Arg (%p) is an ObjRef(Node), storing in %p\n", 814 SrcDesc, *Entry));
| 713 "Arg (%p) is an ObjRef(Node), storing in node %p\n", 714 ObjDesc, CurrentObjDesc));
|
815 816 /* Detach an existing object from the Node */ 817
| 715 716 /* Detach an existing object from the Node */ 717
|
818 AcpiNsDetachObject ((ACPI_NAMESPACE_NODE *) *Entry);
| 718 AcpiNsDetachObject ((ACPI_NAMESPACE_NODE *) CurrentObjDesc);
|
819 820 /* 821 * Store this object into the Node
| 719 720 /* 721 * Store this object into the Node
|
822 * (do the indirect store)
| 722 * (perform the indirect store)
|
823 */
| 723 */
|
824 Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) *Entry, SrcDesc, 825 SrcDesc->Common.Type);
| 724 Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) CurrentObjDesc, 725 ObjDesc, ObjDesc->Common.Type);
|
826 return_ACPI_STATUS (Status); 827 } 828
| 726 return_ACPI_STATUS (Status); 727 } 728
|
829 830#ifdef ACPI_ENABLE_IMPLICIT_CONVERSION
| |
831 /*
| 729 /*
|
832 * Perform "Implicit conversion" of the new object to the type of the 833 * existing object 834 */ 835 Status = AcpiExConvertToTargetType ((*Entry)->Common.Type, &SrcDesc, WalkState); 836 if (ACPI_FAILURE (Status)) 837 { 838 goto Cleanup; 839 } 840#endif 841 842 /*
| |
843 * Delete the existing object 844 * before storing the new one 845 */ 846 AcpiDsMethodDataDeleteValue (Opcode, Index, WalkState); 847 } 848
| 730 * Delete the existing object 731 * before storing the new one 732 */ 733 AcpiDsMethodDataDeleteValue (Opcode, Index, WalkState); 734 } 735
|
849
| |
850 /*
| 736 /*
|
851 * Install the ObjStack descriptor (*SrcDesc) into
| 737 * Install the ObjStack descriptor (*ObjDesc) into
|
852 * the descriptor for the Arg or Local. 853 * Install the new object in the stack entry 854 * (increments the object reference count by one) 855 */
| 738 * the descriptor for the Arg or Local. 739 * Install the new object in the stack entry 740 * (increments the object reference count by one) 741 */
|
856 Status = AcpiDsMethodDataSetEntry (Opcode, Index, SrcDesc, WalkState); 857 if (ACPI_FAILURE (Status)) 858 { 859 goto Cleanup; 860 } 861 862 /* Normal exit */ 863 864 return_ACPI_STATUS (AE_OK); 865 866 867 /* Error exit */ 868 869Cleanup: 870
| 742 Status = AcpiDsMethodDataSetValue (Opcode, Index, ObjDesc, WalkState);
|
871 return_ACPI_STATUS (Status); 872} 873
| 743 return_ACPI_STATUS (Status); 744} 745
|
| 746
|
| |