1/****************************************************************************** 2 * 3 * Module Name: exconvrt - Object conversion routines 4 * $Revision: 59 $ 5 * 6 *****************************************************************************/ 7 8/****************************************************************************** 9 * 10 * 1. Copyright Notice 11 * 12 * Some or all of this work - Copyright (c) 1999 - 2004, 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 *****************************************************************************/ 116 117 118#define __EXCONVRT_C__ 119
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123 124 125#define _COMPONENT ACPI_EXECUTER 126 ACPI_MODULE_NAME ("exconvrt") 127 128 129/******************************************************************************* 130 * 131 * FUNCTION: AcpiExConvertToInteger 132 * 133 * PARAMETERS: ObjDesc - Object to be converted. Must be an 134 * Integer, Buffer, or String 135 * ResultDesc - Where the new Integer object is returned 136 * Flags - Used for string conversion 137 * 138 * RETURN: Status 139 * 140 * DESCRIPTION: Convert an ACPI Object to an integer. 141 * 142 ******************************************************************************/ 143 144ACPI_STATUS 145AcpiExConvertToInteger ( 146 ACPI_OPERAND_OBJECT *ObjDesc, 147 ACPI_OPERAND_OBJECT **ResultDesc, 148 UINT32 Flags) 149{ 150 ACPI_OPERAND_OBJECT *ReturnDesc; 151 UINT8 *Pointer; 152 ACPI_INTEGER Result; 153 UINT32 i; 154 UINT32 Count; 155 ACPI_STATUS Status; 156 157 158 ACPI_FUNCTION_TRACE_PTR ("ExConvertToInteger", ObjDesc); 159 160 161 switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) 162 { 163 case ACPI_TYPE_INTEGER: 164 165 /* No conversion necessary */ 166 167 *ResultDesc = ObjDesc; 168 return_ACPI_STATUS (AE_OK); 169 170 case ACPI_TYPE_BUFFER: 171 case ACPI_TYPE_STRING: 172 173 /* Note: Takes advantage of common buffer/string fields */ 174 175 Pointer = ObjDesc->Buffer.Pointer; 176 Count = ObjDesc->Buffer.Length; 177 break; 178 179 default: 180 return_ACPI_STATUS (AE_TYPE); 181 } 182 183 /* 184 * Convert the buffer/string to an integer. Note that both buffers and 185 * strings are treated as raw data - we don't convert ascii to hex for 186 * strings. 187 * 188 * There are two terminating conditions for the loop: 189 * 1) The size of an integer has been reached, or 190 * 2) The end of the buffer or string has been reached 191 */ 192 Result = 0; 193 194 /* 195 * String conversion is different than Buffer conversion 196 */ 197 switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) 198 { 199 case ACPI_TYPE_STRING: 200 201 /* 202 * Convert string to an integer - for most cases, the string must be 203 * hexadecimal as per the ACPI specification. The only exception (as 204 * of ACPI 3.0) is that the ToInteger() operator allows both decimal 205 * and hexadecimal strings (hex prefixed with "0x"). 206 */ 207 Status = AcpiUtStrtoul64 ((char *) Pointer, Flags, &Result); 208 if (ACPI_FAILURE (Status)) 209 { 210 return_ACPI_STATUS (Status); 211 } 212 break; 213 214 215 case ACPI_TYPE_BUFFER: 216 217 /* Transfer no more than an integer's worth of data */ 218 219 if (Count > AcpiGbl_IntegerByteWidth) 220 { 221 Count = AcpiGbl_IntegerByteWidth; 222 } 223 224 /* 225 * Convert buffer to an integer - we simply grab enough raw data 226 * from the buffer to fill an integer 227 */ 228 for (i = 0; i < Count; i++) 229 { 230 /* 231 * Get next byte and shift it into the Result. 232 * Little endian is used, meaning that the first byte of the buffer 233 * is the LSB of the integer 234 */ 235 Result |= (((ACPI_INTEGER) Pointer[i]) << (i * 8)); 236 } 237 break; 238 239 240 default: 241 /* No other types can get here */ 242 break; 243 } 244 245 /* 246 * Create a new integer 247 */ 248 ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); 249 if (!ReturnDesc) 250 { 251 return_ACPI_STATUS (AE_NO_MEMORY); 252 } 253 254 /* Save the Result */ 255 256 ReturnDesc->Integer.Value = Result; 257 AcpiExTruncateFor32bitTable (ReturnDesc); 258 *ResultDesc = ReturnDesc; 259 return_ACPI_STATUS (AE_OK); 260} 261 262 263/******************************************************************************* 264 * 265 * FUNCTION: AcpiExConvertToBuffer 266 * 267 * PARAMETERS: ObjDesc - Object to be converted. Must be an 268 * Integer, Buffer, or String 269 * ResultDesc - Where the new buffer object is returned 270 * 271 * RETURN: Status 272 * 273 * DESCRIPTION: Convert an ACPI Object to a Buffer 274 * 275 ******************************************************************************/ 276 277ACPI_STATUS 278AcpiExConvertToBuffer ( 279 ACPI_OPERAND_OBJECT *ObjDesc, 280 ACPI_OPERAND_OBJECT **ResultDesc) 281{ 282 ACPI_OPERAND_OBJECT *ReturnDesc; 283 UINT8 *NewBuf; 284 285 286 ACPI_FUNCTION_TRACE_PTR ("ExConvertToBuffer", ObjDesc); 287 288 289 switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) 290 { 291 case ACPI_TYPE_BUFFER: 292 293 /* No conversion necessary */ 294 295 *ResultDesc = ObjDesc; 296 return_ACPI_STATUS (AE_OK); 297 298 299 case ACPI_TYPE_INTEGER: 300 301 /* 302 * Create a new Buffer object. 303 * Need enough space for one integer 304 */ 305 ReturnDesc = AcpiUtCreateBufferObject (AcpiGbl_IntegerByteWidth); 306 if (!ReturnDesc) 307 { 308 return_ACPI_STATUS (AE_NO_MEMORY); 309 } 310 311 /* Copy the integer to the buffer, LSB first */ 312 313 NewBuf = ReturnDesc->Buffer.Pointer; 314 ACPI_MEMCPY (NewBuf, 315 &ObjDesc->Integer.Value, 316 AcpiGbl_IntegerByteWidth); 317 break; 318 319 320 case ACPI_TYPE_STRING: 321 322 /* 323 * Create a new Buffer object 324 * Size will be the string length 325 */ 326 ReturnDesc = AcpiUtCreateBufferObject ((ACPI_SIZE) ObjDesc->String.Length); 327 if (!ReturnDesc) 328 { 329 return_ACPI_STATUS (AE_NO_MEMORY); 330 } 331 332 /* Copy the string to the buffer */ 333 334 NewBuf = ReturnDesc->Buffer.Pointer; 335 ACPI_STRNCPY ((char *) NewBuf, (char *) ObjDesc->String.Pointer, 336 ObjDesc->String.Length); 337 break; 338 339 340 default: 341 return_ACPI_STATUS (AE_TYPE); 342 } 343 344 /* Mark buffer initialized */ 345 346 ReturnDesc->Common.Flags |= AOPOBJ_DATA_VALID; 347 *ResultDesc = ReturnDesc; 348 return_ACPI_STATUS (AE_OK); 349} 350 351 352/******************************************************************************* 353 * 354 * FUNCTION: AcpiExConvertToAscii 355 * 356 * PARAMETERS: Integer - Value to be converted 357 * Base - ACPI_STRING_DECIMAL or ACPI_STRING_HEX 358 * String - Where the string is returned 359 * DataWidth - Size of data item to be converted, in bytes 360 * 361 * RETURN: Actual string length 362 * 363 * DESCRIPTION: Convert an ACPI Integer to a hex or decimal string 364 * 365 ******************************************************************************/ 366 367UINT32 368AcpiExConvertToAscii ( 369 ACPI_INTEGER Integer, 370 UINT16 Base, 371 UINT8 *String, 372 UINT8 DataWidth) 373{ 374 ACPI_INTEGER Digit; 375 ACPI_NATIVE_UINT i; 376 ACPI_NATIVE_UINT j; 377 ACPI_NATIVE_UINT k = 0; 378 ACPI_NATIVE_UINT HexLength; 379 ACPI_NATIVE_UINT DecimalLength; 380 UINT32 Remainder; 381 BOOLEAN SupressZeros; 382 383 384 ACPI_FUNCTION_ENTRY (); 385 386 387 switch (Base) 388 { 389 case 10: 390 391 /* Setup max length for the decimal number */ 392 393 switch (DataWidth) 394 { 395 case 1: 396 DecimalLength = ACPI_MAX8_DECIMAL_DIGITS; 397 break; 398 399 case 4: 400 DecimalLength = ACPI_MAX32_DECIMAL_DIGITS; 401 break; 402 403 case 8: 404 default: 405 DecimalLength = ACPI_MAX64_DECIMAL_DIGITS; 406 break; 407 } 408 409 SupressZeros = TRUE; /* No leading zeros */ 410 Remainder = 0; 411 412 for (i = DecimalLength; i > 0; i--) 413 { 414 /* Divide by nth factor of 10 */ 415 416 Digit = Integer; 417 for (j = 0; j < i; j++) 418 { 419 (void) AcpiUtShortDivide (Digit, 10, &Digit, &Remainder); 420 } 421 422 /* Handle leading zeros */ 423 424 if (Remainder != 0) 425 { 426 SupressZeros = FALSE; 427 } 428 429 if (!SupressZeros) 430 { 431 String[k] = (UINT8) (ACPI_ASCII_ZERO + Remainder); 432 k++; 433 } 434 } 435 break; 436 437 case 16: 438 439 HexLength = ACPI_MUL_2 (DataWidth); /* 2 ascii hex chars per data byte */ 440 441 for (i = 0, j = (HexLength-1); i < HexLength; i++, j--) 442 { 443 /* Get one hex digit, most significant digits first */ 444 445 String[k] = (UINT8) AcpiUtHexToAsciiChar (Integer, ACPI_MUL_4 (j)); 446 k++; 447 } 448 break; 449 450 default: 451 return (0); 452 } 453 454 /* 455 * Since leading zeros are supressed, we must check for the case where 456 * the integer equals 0 457 * 458 * Finally, null terminate the string and return the length 459 */ 460 if (!k) 461 { 462 String [0] = ACPI_ASCII_ZERO; 463 k = 1; 464 } 465 466 String [k] = 0; 467 return ((UINT32) k); 468} 469 470 471/******************************************************************************* 472 * 473 * FUNCTION: AcpiExConvertToString 474 * 475 * PARAMETERS: ObjDesc - Object to be converted. Must be an 476 * Integer, Buffer, or String 477 * ResultDesc - Where the string object is returned 478 * Type - String flags (base and conversion type) 479 * 480 * RETURN: Status 481 * 482 * DESCRIPTION: Convert an ACPI Object to a string 483 * 484 ******************************************************************************/ 485 486ACPI_STATUS 487AcpiExConvertToString ( 488 ACPI_OPERAND_OBJECT *ObjDesc, 489 ACPI_OPERAND_OBJECT **ResultDesc, 490 UINT32 Type) 491{ 492 ACPI_OPERAND_OBJECT *ReturnDesc; 493 UINT8 *NewBuf; 494 UINT32 StringLength = 0; 495 UINT16 Base = 16; 496 UINT32 i; 497 UINT8 Separator = ','; 498 499 500 ACPI_FUNCTION_TRACE_PTR ("ExConvertToString", ObjDesc); 501 502 503 switch (ACPI_GET_OBJECT_TYPE (ObjDesc)) 504 { 505 case ACPI_TYPE_STRING: 506 507 /* No conversion necessary */ 508 509 *ResultDesc = ObjDesc; 510 return_ACPI_STATUS (AE_OK); 511 512 513 case ACPI_TYPE_INTEGER: 514 515 switch (Type) 516 { 517 case ACPI_EXPLICIT_CONVERT_DECIMAL: 518 519 /* Make room for maximum decimal number */ 520 521 StringLength = ACPI_MAX_DECIMAL_DIGITS; 522 Base = 10; 523 break; 524 525 default: 526 527 /* Two hex string characters for each integer byte */ 528 529 StringLength = ACPI_MUL_2 (AcpiGbl_IntegerByteWidth); 530 break; 531 } 532 533 /* 534 * Create a new String 535 * Need enough space for one ASCII integer (plus null terminator) 536 */ 537 ReturnDesc = AcpiUtCreateStringObject ((ACPI_SIZE) StringLength); 538 if (!ReturnDesc) 539 { 540 return_ACPI_STATUS (AE_NO_MEMORY); 541 } 542 543 NewBuf = ReturnDesc->Buffer.Pointer; 544 545 /* Convert integer to string */ 546 547 StringLength = AcpiExConvertToAscii (ObjDesc->Integer.Value, Base, 548 NewBuf, AcpiGbl_IntegerByteWidth); 549 550 /* Null terminate at the correct place */ 551 552 ReturnDesc->String.Length = StringLength; 553 NewBuf [StringLength] = 0; 554 break; 555 556 557 case ACPI_TYPE_BUFFER: 558 559 switch (Type) 560 { 561 case ACPI_EXPLICIT_CONVERT_DECIMAL: /* Used by ToDecimalString operator */ 562 /* 563 * From ACPI: "If Data is a buffer, it is converted to a string of 564 * decimal values separated by commas." 565 */ 566 Base = 10; 567 StringLength = ObjDesc->Buffer.Length; /* 4 chars for each decimal */ 568 569 /*lint -fallthrough */ 570 571 case ACPI_IMPLICIT_CONVERT_HEX: 572 /* 573 * From the ACPI spec: 574 *"The entire contents of the buffer are converted to a string of 575 * two-character hexadecimal numbers, each separated by a space." 576 */ 577 if (Type == ACPI_IMPLICIT_CONVERT_HEX) 578 { 579 Separator = ' '; 580 } 581 582 /*lint -fallthrough */ 583 584 case ACPI_EXPLICIT_CONVERT_HEX: /* Used by ToHexString operator */ 585 /* 586 * From ACPI: "If Data is a buffer, it is converted to a string of 587 * hexadecimal values separated by commas." 588 */ 589 StringLength += (ObjDesc->Buffer.Length * 3); 590 if (StringLength > ACPI_MAX_STRING_CONVERSION) /* ACPI limit */ 591 { 592 return_ACPI_STATUS (AE_AML_STRING_LIMIT); 593 } 594 595 /* Create a new string object and string buffer */ 596 597 ReturnDesc = AcpiUtCreateStringObject ((ACPI_SIZE) StringLength -1); 598 if (!ReturnDesc) 599 { 600 return_ACPI_STATUS (AE_NO_MEMORY); 601 } 602 603 NewBuf = ReturnDesc->Buffer.Pointer; 604 605 /* 606 * Convert buffer bytes to hex or decimal values 607 * (separated by commas) 608 */ 609 for (i = 0; i < ObjDesc->Buffer.Length; i++) 610 { 611 NewBuf += AcpiExConvertToAscii ( 612 (ACPI_INTEGER) ObjDesc->Buffer.Pointer[i], Base, 613 NewBuf, 1); 614 *NewBuf++ = Separator; /* each separated by a comma or space */ 615 } 616 617 /* Null terminate the string (overwrites final comma from above) */ 618 619 NewBuf--; 620 *NewBuf = 0; 621 622 /* Recalculate length */ 623 624 ReturnDesc->String.Length = (UINT32) 625 ACPI_STRLEN (ReturnDesc->String.Pointer); 626 break; 627 628 default: 629 return_ACPI_STATUS (AE_BAD_PARAMETER); 630 } 631 break; 632 633 default: 634 return_ACPI_STATUS (AE_TYPE); 635 } 636 637 *ResultDesc = ReturnDesc; 638 return_ACPI_STATUS (AE_OK); 639} 640 641 642/******************************************************************************* 643 * 644 * FUNCTION: AcpiExConvertToTargetType 645 * 646 * PARAMETERS: DestinationType - Current type of the destination 647 * SourceDesc - Source object to be converted. 648 * ResultDesc - Where the converted object is returned 649 * WalkState - Current method state 650 * 651 * RETURN: Status 652 * 653 * DESCRIPTION: Implements "implicit conversion" rules for storing an object. 654 * 655 ******************************************************************************/ 656 657ACPI_STATUS 658AcpiExConvertToTargetType ( 659 ACPI_OBJECT_TYPE DestinationType, 660 ACPI_OPERAND_OBJECT *SourceDesc, 661 ACPI_OPERAND_OBJECT **ResultDesc, 662 ACPI_WALK_STATE *WalkState) 663{ 664 ACPI_STATUS Status = AE_OK; 665 666 667 ACPI_FUNCTION_TRACE ("ExConvertToTargetType"); 668 669 670 /* Default behavior */ 671 672 *ResultDesc = SourceDesc; 673 674 /* 675 * If required by the target, 676 * perform implicit conversion on the source before we store it. 677 */ 678 switch (GET_CURRENT_ARG_TYPE (WalkState->OpInfo->RuntimeArgs)) 679 { 680 case ARGI_SIMPLE_TARGET: 681 case ARGI_FIXED_TARGET: 682 case ARGI_INTEGER_REF: /* Handles Increment, Decrement cases */ 683 684 switch (DestinationType) 685 { 686 case ACPI_TYPE_LOCAL_REGION_FIELD: 687 /* 688 * Named field can always handle conversions 689 */ 690 break; 691 692 default: 693 /* No conversion allowed for these types */ 694 695 if (DestinationType != ACPI_GET_OBJECT_TYPE (SourceDesc)) 696 { 697 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, 698 "Explicit operator, will store (%s) over existing type (%s)\n", 699 AcpiUtGetObjectTypeName (SourceDesc), 700 AcpiUtGetTypeName (DestinationType))); 701 Status = AE_TYPE; 702 } 703 } 704 break; 705 706 707 case ARGI_TARGETREF: 708 709 switch (DestinationType) 710 { 711 case ACPI_TYPE_INTEGER: 712 case ACPI_TYPE_BUFFER_FIELD: 713 case ACPI_TYPE_LOCAL_BANK_FIELD: 714 case ACPI_TYPE_LOCAL_INDEX_FIELD: 715 /* 716 * These types require an Integer operand. We can convert 717 * a Buffer or a String to an Integer if necessary. 718 */ 719 Status = AcpiExConvertToInteger (SourceDesc, ResultDesc, 720 16); 721 break; 722 723 724 case ACPI_TYPE_STRING: 725 726 /* 727 * The operand must be a String. We can convert an 728 * Integer or Buffer if necessary 729 */ 730 Status = AcpiExConvertToString (SourceDesc, ResultDesc, 731 ACPI_IMPLICIT_CONVERT_HEX); 732 break; 733 734 735 case ACPI_TYPE_BUFFER: 736 737 /* 738 * The operand must be a Buffer. We can convert an 739 * Integer or String if necessary 740 */ 741 Status = AcpiExConvertToBuffer (SourceDesc, ResultDesc); 742 break; 743 744 745 default: 746 ACPI_REPORT_ERROR (("Bad destination type during conversion: %X\n", 747 DestinationType)); 748 Status = AE_AML_INTERNAL; 749 break; 750 } 751 break; 752 753 754 case ARGI_REFERENCE: 755 /* 756 * CreateXxxxField cases - we are storing the field object into the name 757 */ 758 break; 759 760 761 default: 762 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 763 "Unknown Target type ID 0x%X Op %s DestType %s\n", 764 GET_CURRENT_ARG_TYPE (WalkState->OpInfo->RuntimeArgs), 765 WalkState->OpInfo->Name, AcpiUtGetTypeName (DestinationType))); 766 767 ACPI_REPORT_ERROR (("Bad Target Type (ARGI): %X\n", 768 GET_CURRENT_ARG_TYPE (WalkState->OpInfo->RuntimeArgs))) 769 Status = AE_AML_INTERNAL; 770 } 771 772 /* 773 * Source-to-Target conversion semantics: 774 * 775 * If conversion to the target type cannot be performed, then simply 776 * overwrite the target with the new object and type. 777 */ 778 if (Status == AE_TYPE) 779 { 780 Status = AE_OK; 781 } 782 783 return_ACPI_STATUS (Status); 784} 785 786
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