828 lines
25 KiB
C
828 lines
25 KiB
C
/******************************************************************************
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*
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* Module Name: exconvrt - Object conversion routines
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*
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*****************************************************************************/
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/******************************************************************************
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*
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* 1. Copyright Notice
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*
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* Some or all of this work - Copyright (c) 1999 - 2009, Intel Corp.
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* All rights reserved.
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*
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* 2. License
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*
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* 2.1. This is your license from Intel Corp. under its intellectual property
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* rights. You may have additional license terms from the party that provided
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* you this software, covering your right to use that party's intellectual
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* property rights.
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*
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* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
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* copy of the source code appearing in this file ("Covered Code") an
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* irrevocable, perpetual, worldwide license under Intel's copyrights in the
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* base code distributed originally by Intel ("Original Intel Code") to copy,
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* make derivatives, distribute, use and display any portion of the Covered
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* Code in any form, with the right to sublicense such rights; and
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*
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* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
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* license (with the right to sublicense), under only those claims of Intel
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* patents that are infringed by the Original Intel Code, to make, use, sell,
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* offer to sell, and import the Covered Code and derivative works thereof
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* solely to the minimum extent necessary to exercise the above copyright
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* license, and in no event shall the patent license extend to any additions
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* to or modifications of the Original Intel Code. No other license or right
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* is granted directly or by implication, estoppel or otherwise;
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*
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* The above copyright and patent license is granted only if the following
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* conditions are met:
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*
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* 3. Conditions
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*
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* 3.1. Redistribution of Source with Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification with rights to further distribute source must include
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* the above Copyright Notice, the above License, this list of Conditions,
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* and the following Disclaimer and Export Compliance provision. In addition,
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* Licensee must cause all Covered Code to which Licensee contributes to
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* contain a file documenting the changes Licensee made to create that Covered
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* Code and the date of any change. Licensee must include in that file the
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* documentation of any changes made by any predecessor Licensee. Licensee
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* must include a prominent statement that the modification is derived,
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* directly or indirectly, from Original Intel Code.
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*
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* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification without rights to further distribute source must
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* include the following Disclaimer and Export Compliance provision in the
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* documentation and/or other materials provided with distribution. In
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* addition, Licensee may not authorize further sublicense of source of any
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* portion of the Covered Code, and must include terms to the effect that the
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* license from Licensee to its licensee is limited to the intellectual
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* property embodied in the software Licensee provides to its licensee, and
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* not to intellectual property embodied in modifications its licensee may
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* make.
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*
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* 3.3. Redistribution of Executable. Redistribution in executable form of any
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* substantial portion of the Covered Code or modification must reproduce the
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* above Copyright Notice, and the following Disclaimer and Export Compliance
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* provision in the documentation and/or other materials provided with the
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* distribution.
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*
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* 3.4. Intel retains all right, title, and interest in and to the Original
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* Intel Code.
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*
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* 3.5. Neither the name Intel nor any other trademark owned or controlled by
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* Intel shall be used in advertising or otherwise to promote the sale, use or
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* other dealings in products derived from or relating to the Covered Code
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* without prior written authorization from Intel.
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*
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* 4. Disclaimer and Export Compliance
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*
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* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
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* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
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* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
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* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
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* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
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* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
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* PARTICULAR PURPOSE.
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*
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* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
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* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
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* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
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* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
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* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
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* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
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* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
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* LIMITED REMEDY.
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*
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* 4.3. Licensee shall not export, either directly or indirectly, any of this
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* software or system incorporating such software without first obtaining any
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* required license or other approval from the U. S. Department of Commerce or
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* any other agency or department of the United States Government. In the
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* event Licensee exports any such software from the United States or
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* re-exports any such software from a foreign destination, Licensee shall
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* ensure that the distribution and export/re-export of the software is in
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* compliance with all laws, regulations, orders, or other restrictions of the
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* U.S. Export Administration Regulations. Licensee agrees that neither it nor
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* any of its subsidiaries will export/re-export any technical data, process,
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* software, or service, directly or indirectly, to any country for which the
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* United States government or any agency thereof requires an export license,
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* other governmental approval, or letter of assurance, without first obtaining
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* such license, approval or letter.
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*
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*****************************************************************************/
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#define __EXCONVRT_C__
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#include "acpi.h"
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#include "accommon.h"
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#include "acinterp.h"
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#include "amlcode.h"
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#define _COMPONENT ACPI_EXECUTER
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ACPI_MODULE_NAME ("exconvrt")
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/* Local prototypes */
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static UINT32
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AcpiExConvertToAscii (
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ACPI_INTEGER Integer,
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UINT16 Base,
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UINT8 *String,
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UINT8 MaxLength);
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/*******************************************************************************
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*
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* FUNCTION: AcpiExConvertToInteger
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*
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* PARAMETERS: ObjDesc - Object to be converted. Must be an
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* Integer, Buffer, or String
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* ResultDesc - Where the new Integer object is returned
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* Flags - Used for string conversion
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*
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* RETURN: Status
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*
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* DESCRIPTION: Convert an ACPI Object to an integer.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiExConvertToInteger (
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ACPI_OPERAND_OBJECT *ObjDesc,
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ACPI_OPERAND_OBJECT **ResultDesc,
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UINT32 Flags)
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{
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ACPI_OPERAND_OBJECT *ReturnDesc;
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UINT8 *Pointer;
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ACPI_INTEGER Result;
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UINT32 i;
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UINT32 Count;
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ACPI_STATUS Status;
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ACPI_FUNCTION_TRACE_PTR (ExConvertToInteger, ObjDesc);
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switch (ObjDesc->Common.Type)
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{
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case ACPI_TYPE_INTEGER:
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/* No conversion necessary */
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*ResultDesc = ObjDesc;
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return_ACPI_STATUS (AE_OK);
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case ACPI_TYPE_BUFFER:
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case ACPI_TYPE_STRING:
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/* Note: Takes advantage of common buffer/string fields */
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Pointer = ObjDesc->Buffer.Pointer;
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Count = ObjDesc->Buffer.Length;
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break;
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default:
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return_ACPI_STATUS (AE_TYPE);
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}
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/*
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* Convert the buffer/string to an integer. Note that both buffers and
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* strings are treated as raw data - we don't convert ascii to hex for
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* strings.
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*
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* There are two terminating conditions for the loop:
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* 1) The size of an integer has been reached, or
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* 2) The end of the buffer or string has been reached
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*/
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Result = 0;
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/* String conversion is different than Buffer conversion */
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switch (ObjDesc->Common.Type)
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{
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case ACPI_TYPE_STRING:
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/*
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* Convert string to an integer - for most cases, the string must be
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* hexadecimal as per the ACPI specification. The only exception (as
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* of ACPI 3.0) is that the ToInteger() operator allows both decimal
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* and hexadecimal strings (hex prefixed with "0x").
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*/
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Status = AcpiUtStrtoul64 ((char *) Pointer, Flags, &Result);
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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break;
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case ACPI_TYPE_BUFFER:
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/* Check for zero-length buffer */
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if (!Count)
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{
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return_ACPI_STATUS (AE_AML_BUFFER_LIMIT);
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}
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/* Transfer no more than an integer's worth of data */
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if (Count > AcpiGbl_IntegerByteWidth)
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{
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Count = AcpiGbl_IntegerByteWidth;
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}
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/*
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* Convert buffer to an integer - we simply grab enough raw data
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* from the buffer to fill an integer
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*/
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for (i = 0; i < Count; i++)
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{
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/*
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* Get next byte and shift it into the Result.
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* Little endian is used, meaning that the first byte of the buffer
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* is the LSB of the integer
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*/
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Result |= (((ACPI_INTEGER) Pointer[i]) << (i * 8));
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}
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break;
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default:
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/* No other types can get here */
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break;
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}
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/* Create a new integer */
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ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
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if (!ReturnDesc)
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{
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n",
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ACPI_FORMAT_UINT64 (Result)));
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/* Save the Result */
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ReturnDesc->Integer.Value = Result;
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AcpiExTruncateFor32bitTable (ReturnDesc);
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*ResultDesc = ReturnDesc;
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return_ACPI_STATUS (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiExConvertToBuffer
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*
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* PARAMETERS: ObjDesc - Object to be converted. Must be an
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* Integer, Buffer, or String
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* ResultDesc - Where the new buffer object is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Convert an ACPI Object to a Buffer
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiExConvertToBuffer (
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ACPI_OPERAND_OBJECT *ObjDesc,
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ACPI_OPERAND_OBJECT **ResultDesc)
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{
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ACPI_OPERAND_OBJECT *ReturnDesc;
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UINT8 *NewBuf;
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ACPI_FUNCTION_TRACE_PTR (ExConvertToBuffer, ObjDesc);
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|
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switch (ObjDesc->Common.Type)
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{
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case ACPI_TYPE_BUFFER:
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/* No conversion necessary */
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*ResultDesc = ObjDesc;
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return_ACPI_STATUS (AE_OK);
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|
|
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case ACPI_TYPE_INTEGER:
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/*
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* Create a new Buffer object.
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* Need enough space for one integer
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*/
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ReturnDesc = AcpiUtCreateBufferObject (AcpiGbl_IntegerByteWidth);
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if (!ReturnDesc)
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{
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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/* Copy the integer to the buffer, LSB first */
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NewBuf = ReturnDesc->Buffer.Pointer;
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ACPI_MEMCPY (NewBuf,
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&ObjDesc->Integer.Value,
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AcpiGbl_IntegerByteWidth);
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break;
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|
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case ACPI_TYPE_STRING:
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/*
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* Create a new Buffer object
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* Size will be the string length
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*
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* NOTE: Add one to the string length to include the null terminator.
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* The ACPI spec is unclear on this subject, but there is existing
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* ASL/AML code that depends on the null being transferred to the new
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* buffer.
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*/
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ReturnDesc = AcpiUtCreateBufferObject (
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(ACPI_SIZE) ObjDesc->String.Length + 1);
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if (!ReturnDesc)
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{
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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/* Copy the string to the buffer */
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NewBuf = ReturnDesc->Buffer.Pointer;
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ACPI_STRNCPY ((char *) NewBuf, (char *) ObjDesc->String.Pointer,
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ObjDesc->String.Length);
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break;
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|
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default:
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return_ACPI_STATUS (AE_TYPE);
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}
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|
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/* Mark buffer initialized */
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ReturnDesc->Common.Flags |= AOPOBJ_DATA_VALID;
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*ResultDesc = ReturnDesc;
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return_ACPI_STATUS (AE_OK);
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}
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|
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/*******************************************************************************
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*
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* FUNCTION: AcpiExConvertToAscii
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*
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* PARAMETERS: Integer - Value to be converted
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* Base - ACPI_STRING_DECIMAL or ACPI_STRING_HEX
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* String - Where the string is returned
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* DataWidth - Size of data item to be converted, in bytes
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*
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* RETURN: Actual string length
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*
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* DESCRIPTION: Convert an ACPI Integer to a hex or decimal string
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*
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******************************************************************************/
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static UINT32
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AcpiExConvertToAscii (
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ACPI_INTEGER Integer,
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UINT16 Base,
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UINT8 *String,
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UINT8 DataWidth)
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{
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ACPI_INTEGER Digit;
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UINT32 i;
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UINT32 j;
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UINT32 k = 0;
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UINT32 HexLength;
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UINT32 DecimalLength;
|
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UINT32 Remainder;
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BOOLEAN SupressZeros;
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|
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ACPI_FUNCTION_ENTRY ();
|
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|
|
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switch (Base)
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{
|
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case 10:
|
|
|
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/* Setup max length for the decimal number */
|
|
|
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switch (DataWidth)
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{
|
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case 1:
|
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DecimalLength = ACPI_MAX8_DECIMAL_DIGITS;
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break;
|
|
|
|
case 4:
|
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DecimalLength = ACPI_MAX32_DECIMAL_DIGITS;
|
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break;
|
|
|
|
case 8:
|
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default:
|
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DecimalLength = ACPI_MAX64_DECIMAL_DIGITS;
|
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break;
|
|
}
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|
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SupressZeros = TRUE; /* No leading zeros */
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Remainder = 0;
|
|
|
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for (i = DecimalLength; i > 0; i--)
|
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{
|
|
/* Divide by nth factor of 10 */
|
|
|
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Digit = Integer;
|
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for (j = 0; j < i; j++)
|
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{
|
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(void) AcpiUtShortDivide (Digit, 10, &Digit, &Remainder);
|
|
}
|
|
|
|
/* Handle leading zeros */
|
|
|
|
if (Remainder != 0)
|
|
{
|
|
SupressZeros = FALSE;
|
|
}
|
|
|
|
if (!SupressZeros)
|
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{
|
|
String[k] = (UINT8) (ACPI_ASCII_ZERO + Remainder);
|
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k++;
|
|
}
|
|
}
|
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break;
|
|
|
|
case 16:
|
|
|
|
/* HexLength: 2 ascii hex chars per data byte */
|
|
|
|
HexLength = ACPI_MUL_2 (DataWidth);
|
|
for (i = 0, j = (HexLength-1); i < HexLength; i++, j--)
|
|
{
|
|
/* Get one hex digit, most significant digits first */
|
|
|
|
String[k] = (UINT8) AcpiUtHexToAsciiChar (Integer, ACPI_MUL_4 (j));
|
|
k++;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Since leading zeros are suppressed, we must check for the case where
|
|
* the integer equals 0
|
|
*
|
|
* Finally, null terminate the string and return the length
|
|
*/
|
|
if (!k)
|
|
{
|
|
String [0] = ACPI_ASCII_ZERO;
|
|
k = 1;
|
|
}
|
|
|
|
String [k] = 0;
|
|
return ((UINT32) k);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiExConvertToString
|
|
*
|
|
* PARAMETERS: ObjDesc - Object to be converted. Must be an
|
|
* Integer, Buffer, or String
|
|
* ResultDesc - Where the string object is returned
|
|
* Type - String flags (base and conversion type)
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Convert an ACPI Object to a string
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExConvertToString (
|
|
ACPI_OPERAND_OBJECT *ObjDesc,
|
|
ACPI_OPERAND_OBJECT **ResultDesc,
|
|
UINT32 Type)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ReturnDesc;
|
|
UINT8 *NewBuf;
|
|
UINT32 i;
|
|
UINT32 StringLength = 0;
|
|
UINT16 Base = 16;
|
|
UINT8 Separator = ',';
|
|
|
|
|
|
ACPI_FUNCTION_TRACE_PTR (ExConvertToString, ObjDesc);
|
|
|
|
|
|
switch (ObjDesc->Common.Type)
|
|
{
|
|
case ACPI_TYPE_STRING:
|
|
|
|
/* No conversion necessary */
|
|
|
|
*ResultDesc = ObjDesc;
|
|
return_ACPI_STATUS (AE_OK);
|
|
|
|
|
|
case ACPI_TYPE_INTEGER:
|
|
|
|
switch (Type)
|
|
{
|
|
case ACPI_EXPLICIT_CONVERT_DECIMAL:
|
|
|
|
/* Make room for maximum decimal number */
|
|
|
|
StringLength = ACPI_MAX_DECIMAL_DIGITS;
|
|
Base = 10;
|
|
break;
|
|
|
|
default:
|
|
|
|
/* Two hex string characters for each integer byte */
|
|
|
|
StringLength = ACPI_MUL_2 (AcpiGbl_IntegerByteWidth);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Create a new String
|
|
* Need enough space for one ASCII integer (plus null terminator)
|
|
*/
|
|
ReturnDesc = AcpiUtCreateStringObject ((ACPI_SIZE) StringLength);
|
|
if (!ReturnDesc)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
NewBuf = ReturnDesc->Buffer.Pointer;
|
|
|
|
/* Convert integer to string */
|
|
|
|
StringLength = AcpiExConvertToAscii (ObjDesc->Integer.Value, Base,
|
|
NewBuf, AcpiGbl_IntegerByteWidth);
|
|
|
|
/* Null terminate at the correct place */
|
|
|
|
ReturnDesc->String.Length = StringLength;
|
|
NewBuf [StringLength] = 0;
|
|
break;
|
|
|
|
|
|
case ACPI_TYPE_BUFFER:
|
|
|
|
/* Setup string length, base, and separator */
|
|
|
|
switch (Type)
|
|
{
|
|
case ACPI_EXPLICIT_CONVERT_DECIMAL: /* Used by ToDecimalString */
|
|
/*
|
|
* From ACPI: "If Data is a buffer, it is converted to a string of
|
|
* decimal values separated by commas."
|
|
*/
|
|
Base = 10;
|
|
|
|
/*
|
|
* Calculate the final string length. Individual string values
|
|
* are variable length (include separator for each)
|
|
*/
|
|
for (i = 0; i < ObjDesc->Buffer.Length; i++)
|
|
{
|
|
if (ObjDesc->Buffer.Pointer[i] >= 100)
|
|
{
|
|
StringLength += 4;
|
|
}
|
|
else if (ObjDesc->Buffer.Pointer[i] >= 10)
|
|
{
|
|
StringLength += 3;
|
|
}
|
|
else
|
|
{
|
|
StringLength += 2;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ACPI_IMPLICIT_CONVERT_HEX:
|
|
/*
|
|
* From the ACPI spec:
|
|
*"The entire contents of the buffer are converted to a string of
|
|
* two-character hexadecimal numbers, each separated by a space."
|
|
*/
|
|
Separator = ' ';
|
|
StringLength = (ObjDesc->Buffer.Length * 3);
|
|
break;
|
|
|
|
case ACPI_EXPLICIT_CONVERT_HEX: /* Used by ToHexString */
|
|
/*
|
|
* From ACPI: "If Data is a buffer, it is converted to a string of
|
|
* hexadecimal values separated by commas."
|
|
*/
|
|
StringLength = (ObjDesc->Buffer.Length * 3);
|
|
break;
|
|
|
|
default:
|
|
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
/*
|
|
* Create a new string object and string buffer
|
|
* (-1 because of extra separator included in StringLength from above)
|
|
* Allow creation of zero-length strings from zero-length buffers.
|
|
*/
|
|
if (StringLength)
|
|
{
|
|
StringLength--;
|
|
}
|
|
|
|
ReturnDesc = AcpiUtCreateStringObject ((ACPI_SIZE) StringLength);
|
|
if (!ReturnDesc)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
NewBuf = ReturnDesc->Buffer.Pointer;
|
|
|
|
/*
|
|
* Convert buffer bytes to hex or decimal values
|
|
* (separated by commas or spaces)
|
|
*/
|
|
for (i = 0; i < ObjDesc->Buffer.Length; i++)
|
|
{
|
|
NewBuf += AcpiExConvertToAscii (
|
|
(ACPI_INTEGER) ObjDesc->Buffer.Pointer[i], Base,
|
|
NewBuf, 1);
|
|
*NewBuf++ = Separator; /* each separated by a comma or space */
|
|
}
|
|
|
|
/*
|
|
* Null terminate the string
|
|
* (overwrites final comma/space from above)
|
|
*/
|
|
if (ObjDesc->Buffer.Length)
|
|
{
|
|
NewBuf--;
|
|
}
|
|
*NewBuf = 0;
|
|
break;
|
|
|
|
default:
|
|
return_ACPI_STATUS (AE_TYPE);
|
|
}
|
|
|
|
*ResultDesc = ReturnDesc;
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiExConvertToTargetType
|
|
*
|
|
* PARAMETERS: DestinationType - Current type of the destination
|
|
* SourceDesc - Source object to be converted.
|
|
* ResultDesc - Where the converted object is returned
|
|
* WalkState - Current method state
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Implements "implicit conversion" rules for storing an object.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExConvertToTargetType (
|
|
ACPI_OBJECT_TYPE DestinationType,
|
|
ACPI_OPERAND_OBJECT *SourceDesc,
|
|
ACPI_OPERAND_OBJECT **ResultDesc,
|
|
ACPI_WALK_STATE *WalkState)
|
|
{
|
|
ACPI_STATUS Status = AE_OK;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (ExConvertToTargetType);
|
|
|
|
|
|
/* Default behavior */
|
|
|
|
*ResultDesc = SourceDesc;
|
|
|
|
/*
|
|
* If required by the target,
|
|
* perform implicit conversion on the source before we store it.
|
|
*/
|
|
switch (GET_CURRENT_ARG_TYPE (WalkState->OpInfo->RuntimeArgs))
|
|
{
|
|
case ARGI_SIMPLE_TARGET:
|
|
case ARGI_FIXED_TARGET:
|
|
case ARGI_INTEGER_REF: /* Handles Increment, Decrement cases */
|
|
|
|
switch (DestinationType)
|
|
{
|
|
case ACPI_TYPE_LOCAL_REGION_FIELD:
|
|
/*
|
|
* Named field can always handle conversions
|
|
*/
|
|
break;
|
|
|
|
default:
|
|
/* No conversion allowed for these types */
|
|
|
|
if (DestinationType != SourceDesc->Common.Type)
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
|
|
"Explicit operator, will store (%s) over existing type (%s)\n",
|
|
AcpiUtGetObjectTypeName (SourceDesc),
|
|
AcpiUtGetTypeName (DestinationType)));
|
|
Status = AE_TYPE;
|
|
}
|
|
}
|
|
break;
|
|
|
|
|
|
case ARGI_TARGETREF:
|
|
|
|
switch (DestinationType)
|
|
{
|
|
case ACPI_TYPE_INTEGER:
|
|
case ACPI_TYPE_BUFFER_FIELD:
|
|
case ACPI_TYPE_LOCAL_BANK_FIELD:
|
|
case ACPI_TYPE_LOCAL_INDEX_FIELD:
|
|
/*
|
|
* These types require an Integer operand. We can convert
|
|
* a Buffer or a String to an Integer if necessary.
|
|
*/
|
|
Status = AcpiExConvertToInteger (SourceDesc, ResultDesc,
|
|
16);
|
|
break;
|
|
|
|
|
|
case ACPI_TYPE_STRING:
|
|
/*
|
|
* The operand must be a String. We can convert an
|
|
* Integer or Buffer if necessary
|
|
*/
|
|
Status = AcpiExConvertToString (SourceDesc, ResultDesc,
|
|
ACPI_IMPLICIT_CONVERT_HEX);
|
|
break;
|
|
|
|
|
|
case ACPI_TYPE_BUFFER:
|
|
/*
|
|
* The operand must be a Buffer. We can convert an
|
|
* Integer or String if necessary
|
|
*/
|
|
Status = AcpiExConvertToBuffer (SourceDesc, ResultDesc);
|
|
break;
|
|
|
|
|
|
default:
|
|
ACPI_ERROR ((AE_INFO, "Bad destination type during conversion: %X",
|
|
DestinationType));
|
|
Status = AE_AML_INTERNAL;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
|
|
case ARGI_REFERENCE:
|
|
/*
|
|
* CreateXxxxField cases - we are storing the field object into the name
|
|
*/
|
|
break;
|
|
|
|
|
|
default:
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Unknown Target type ID 0x%X AmlOpcode %X DestType %s",
|
|
GET_CURRENT_ARG_TYPE (WalkState->OpInfo->RuntimeArgs),
|
|
WalkState->Opcode, AcpiUtGetTypeName (DestinationType)));
|
|
Status = AE_AML_INTERNAL;
|
|
}
|
|
|
|
/*
|
|
* Source-to-Target conversion semantics:
|
|
*
|
|
* If conversion to the target type cannot be performed, then simply
|
|
* overwrite the target with the new object and type.
|
|
*/
|
|
if (Status == AE_TYPE)
|
|
{
|
|
Status = AE_OK;
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|