621 lines
19 KiB
C
621 lines
19 KiB
C
/******************************************************************************
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*
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* Module Name: dtfield.c - Code generation for individual source fields
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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 - 2011, 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 __DTFIELD_C__
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#include "aslcompiler.h"
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#include "dtcompiler.h"
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#define _COMPONENT DT_COMPILER
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ACPI_MODULE_NAME ("dtfield")
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/* Local prototypes */
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static void
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DtCompileString (
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UINT8 *Buffer,
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DT_FIELD *Field,
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UINT32 ByteLength);
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static void
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DtCompileUnicode (
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UINT8 *Buffer,
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DT_FIELD *Field,
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UINT32 ByteLength);
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static ACPI_STATUS
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DtCompileUuid (
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UINT8 *Buffer,
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DT_FIELD *Field,
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UINT32 ByteLength);
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static char *
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DtNormalizeBuffer (
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char *Buffer,
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UINT32 *Count);
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/******************************************************************************
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*
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* FUNCTION: DtCompileOneField
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*
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* PARAMETERS: Buffer - Output buffer
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* Field - Field to be compiled
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* ByteLength - Byte length of the field
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* Type - Field type
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*
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* RETURN: None
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*
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* DESCRIPTION: Compile a field value to binary
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*
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*****************************************************************************/
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void
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DtCompileOneField (
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UINT8 *Buffer,
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DT_FIELD *Field,
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UINT32 ByteLength,
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UINT8 Type,
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UINT8 Flags)
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{
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ACPI_STATUS Status;
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switch (Type)
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{
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case DT_FIELD_TYPE_INTEGER:
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DtCompileInteger (Buffer, Field, ByteLength, Flags);
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break;
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case DT_FIELD_TYPE_STRING:
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DtCompileString (Buffer, Field, ByteLength);
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break;
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case DT_FIELD_TYPE_UUID:
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Status = DtCompileUuid (Buffer, Field, ByteLength);
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if (ACPI_SUCCESS (Status))
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{
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break;
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}
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/* Fall through. */
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case DT_FIELD_TYPE_BUFFER:
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DtCompileBuffer (Buffer, Field->Value, Field, ByteLength);
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break;
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case DT_FIELD_TYPE_UNICODE:
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DtCompileUnicode (Buffer, Field, ByteLength);
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break;
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case DT_FIELD_TYPE_DEVICE_PATH:
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break;
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default:
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DtFatal (ASL_MSG_COMPILER_INTERNAL, Field, "Invalid field type");
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break;
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}
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}
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/******************************************************************************
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*
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* FUNCTION: DtCompileString
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*
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* PARAMETERS: Buffer - Output buffer
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* Field - String to be copied to buffer
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* ByteLength - Maximum length of string
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*
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* RETURN: None
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*
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* DESCRIPTION: Copy string to the buffer
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*
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*****************************************************************************/
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static void
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DtCompileString (
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UINT8 *Buffer,
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DT_FIELD *Field,
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UINT32 ByteLength)
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{
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UINT32 Length;
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Length = ACPI_STRLEN (Field->Value);
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/* Check if the string is too long for the field */
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if (Length > ByteLength)
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{
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sprintf (MsgBuffer, "Maximum %u characters", ByteLength);
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DtError (ASL_ERROR, ASL_MSG_STRING_LENGTH, Field, MsgBuffer);
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Length = ByteLength;
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}
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ACPI_MEMCPY (Buffer, Field->Value, Length);
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}
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/******************************************************************************
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*
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* FUNCTION: DtCompileUnicode
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*
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* PARAMETERS: Buffer - Output buffer
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* Field - String to be copied to buffer
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* ByteLength - Maximum length of string
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*
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* RETURN: None
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*
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* DESCRIPTION: Convert ASCII string to Unicode string
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*
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* Note: The Unicode string is 16 bits per character, no leading signature,
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* with a 16-bit terminating NULL.
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*
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*****************************************************************************/
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static void
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DtCompileUnicode (
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UINT8 *Buffer,
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DT_FIELD *Field,
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UINT32 ByteLength)
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{
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UINT32 Count;
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UINT32 i;
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char *AsciiString;
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UINT16 *UnicodeString;
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AsciiString = Field->Value;
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UnicodeString = (UINT16 *) Buffer;
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Count = ACPI_STRLEN (AsciiString) + 1;
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/* Convert to Unicode string (including null terminator) */
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for (i = 0; i < Count; i++)
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{
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UnicodeString[i] = (UINT16) AsciiString[i];
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}
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}
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|
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/*******************************************************************************
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*
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* FUNCTION: DtCompileUuid
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*
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* PARAMETERS: Buffer - Output buffer
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* Field - String to be copied to buffer
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* ByteLength - Maximum length of string
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*
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* RETURN: None
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*
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* DESCRIPTION: Convert UUID string to 16-byte buffer
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*
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******************************************************************************/
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static ACPI_STATUS
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DtCompileUuid (
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UINT8 *Buffer,
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DT_FIELD *Field,
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UINT32 ByteLength)
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{
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char *InString;
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ACPI_STATUS Status;
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InString = Field->Value;
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Status = AuValidateUuid (InString);
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if (ACPI_FAILURE (Status))
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{
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sprintf (MsgBuffer, "%s", Field->Value);
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DtNameError (ASL_ERROR, ASL_MSG_INVALID_UUID, Field, MsgBuffer);
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}
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else
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{
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Status = AuConvertStringToUuid (InString, (char *) Buffer);
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}
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return (Status);
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}
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|
|
|
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/******************************************************************************
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*
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* FUNCTION: DtCompileInteger
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*
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* PARAMETERS: Buffer - Output buffer
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* Field - Field obj with Integer to be compiled
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* ByteLength - Byte length of the integer
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* Flags - Additional compile info
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*
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* RETURN: None
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*
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* DESCRIPTION: Compile an integer. Supports integer expressions with C-style
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* operators.
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*
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*****************************************************************************/
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void
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DtCompileInteger (
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UINT8 *Buffer,
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DT_FIELD *Field,
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UINT32 ByteLength,
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UINT8 Flags)
|
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{
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UINT64 Value;
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UINT64 MaxValue;
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ACPI_STATUS Status;
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|
|
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/* Output buffer byte length must be in range 1-8 */
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if ((ByteLength > 8) || (ByteLength == 0))
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{
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DtFatal (ASL_MSG_COMPILER_INTERNAL, Field,
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"Invalid internal Byte length");
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return;
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}
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/* Resolve integer expression to a single integer value */
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Status = DtResolveIntegerExpression (Field, &Value);
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if (ACPI_FAILURE (Status))
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{
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return;
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}
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|
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/* Ensure that reserved fields are set to zero */
|
|
/* TBD: should we set to zero, or just make this an ERROR? */
|
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/* TBD: Probably better to use a flag */
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if (!ACPI_STRCMP (Field->Name, "Reserved") &&
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(Value != 0))
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{
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DtError (ASL_WARNING, ASL_MSG_RESERVED_VALUE, Field,
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"Setting to zero");
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Value = 0;
|
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}
|
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|
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/* Check if the value must be non-zero */
|
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|
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if ((Value == 0) && (Flags & DT_NON_ZERO))
|
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{
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DtError (ASL_ERROR, ASL_MSG_ZERO_VALUE, Field, NULL);
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}
|
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|
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/*
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* Generate the maximum value for the data type (ByteLength)
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* Note: construct chosen for maximum portability
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*/
|
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MaxValue = ((UINT64) (-1)) >> (64 - (ByteLength * 8));
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|
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/* Validate that the input value is within range of the target */
|
|
|
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if (Value > MaxValue)
|
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{
|
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sprintf (MsgBuffer, "%8.8X%8.8X", ACPI_FORMAT_UINT64 (Value));
|
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DtError (ASL_ERROR, ASL_MSG_INTEGER_SIZE, Field, MsgBuffer);
|
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}
|
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|
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ACPI_MEMCPY (Buffer, &Value, ByteLength);
|
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return;
|
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}
|
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|
|
|
|
/******************************************************************************
|
|
*
|
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* FUNCTION: DtNormalizeBuffer
|
|
*
|
|
* PARAMETERS: Buffer - Input buffer
|
|
* Count - Output the count of hex number in
|
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* the Buffer
|
|
*
|
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* RETURN: The normalized buffer, freed by caller
|
|
*
|
|
* DESCRIPTION: [1A,2B,3C,4D] or 1A, 2B, 3C, 4D will be normalized
|
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* to 1A 2B 3C 4D
|
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*
|
|
*****************************************************************************/
|
|
|
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static char *
|
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DtNormalizeBuffer (
|
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char *Buffer,
|
|
UINT32 *Count)
|
|
{
|
|
char *NewBuffer;
|
|
char *TmpBuffer;
|
|
UINT32 BufferCount = 0;
|
|
BOOLEAN Separator = TRUE;
|
|
char c;
|
|
|
|
|
|
NewBuffer = UtLocalCalloc (ACPI_STRLEN (Buffer) + 1);
|
|
TmpBuffer = NewBuffer;
|
|
|
|
while ((c = *Buffer++))
|
|
{
|
|
switch (c)
|
|
{
|
|
/* Valid separators */
|
|
|
|
case '[':
|
|
case ']':
|
|
case ' ':
|
|
case ',':
|
|
Separator = TRUE;
|
|
break;
|
|
|
|
default:
|
|
if (Separator)
|
|
{
|
|
/* Insert blank as the standard separator */
|
|
|
|
if (NewBuffer[0])
|
|
{
|
|
*TmpBuffer++ = ' ';
|
|
BufferCount++;
|
|
}
|
|
|
|
Separator = FALSE;
|
|
}
|
|
|
|
*TmpBuffer++ = c;
|
|
break;
|
|
}
|
|
}
|
|
|
|
*Count = BufferCount + 1;
|
|
return (NewBuffer);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtCompileBuffer
|
|
*
|
|
* PARAMETERS: Buffer - Output buffer
|
|
* StringValue - Integer list to be compiled
|
|
* Field - Current field object
|
|
* ByteLength - Byte length of the integer list
|
|
*
|
|
* RETURN: Count of remaining data in the input list
|
|
*
|
|
* DESCRIPTION: Compile and pack an integer list, for example
|
|
* "AA 1F 20 3B" ==> Buffer[] = {0xAA,0x1F,0x20,0x3B}
|
|
*
|
|
*****************************************************************************/
|
|
|
|
UINT32
|
|
DtCompileBuffer (
|
|
UINT8 *Buffer,
|
|
char *StringValue,
|
|
DT_FIELD *Field,
|
|
UINT32 ByteLength)
|
|
{
|
|
ACPI_STATUS Status;
|
|
char Hex[3];
|
|
UINT64 Value;
|
|
UINT32 i;
|
|
UINT32 Count;
|
|
|
|
|
|
/* Allow several different types of value separators */
|
|
|
|
StringValue = DtNormalizeBuffer (StringValue, &Count);
|
|
|
|
Hex[2] = 0;
|
|
for (i = 0; i < Count; i++)
|
|
{
|
|
/* Each element of StringValue is three chars */
|
|
|
|
Hex[0] = StringValue[(3 * i)];
|
|
Hex[1] = StringValue[(3 * i) + 1];
|
|
|
|
/* Convert one hex byte */
|
|
|
|
Value = 0;
|
|
Status = DtStrtoul64 (Hex, &Value);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
DtError (ASL_ERROR, ASL_MSG_BUFFER_ELEMENT, Field, MsgBuffer);
|
|
return (ByteLength - Count);
|
|
}
|
|
|
|
Buffer[i] = (UINT8) Value;
|
|
}
|
|
|
|
ACPI_FREE (StringValue);
|
|
return (ByteLength - Count);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtCompileFlag
|
|
*
|
|
* PARAMETERS: Buffer - Output buffer
|
|
* Field - Field to be compiled
|
|
* Info - Flag info
|
|
*
|
|
* RETURN:
|
|
*
|
|
* DESCRIPTION: Compile a flag
|
|
*
|
|
*****************************************************************************/
|
|
|
|
void
|
|
DtCompileFlag (
|
|
UINT8 *Buffer,
|
|
DT_FIELD *Field,
|
|
ACPI_DMTABLE_INFO *Info)
|
|
{
|
|
UINT64 Value = 0;
|
|
UINT32 BitLength = 1;
|
|
UINT8 BitPosition = 0;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
Status = DtStrtoul64 (Field->Value, &Value);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
DtError (ASL_ERROR, ASL_MSG_INVALID_HEX_INTEGER, Field, NULL);
|
|
}
|
|
|
|
switch (Info->Opcode)
|
|
{
|
|
case ACPI_DMT_FLAG0:
|
|
case ACPI_DMT_FLAG1:
|
|
case ACPI_DMT_FLAG2:
|
|
case ACPI_DMT_FLAG3:
|
|
case ACPI_DMT_FLAG4:
|
|
case ACPI_DMT_FLAG5:
|
|
case ACPI_DMT_FLAG6:
|
|
case ACPI_DMT_FLAG7:
|
|
|
|
BitPosition = Info->Opcode;
|
|
BitLength = 1;
|
|
break;
|
|
|
|
case ACPI_DMT_FLAGS0:
|
|
|
|
BitPosition = 0;
|
|
BitLength = 2;
|
|
break;
|
|
|
|
|
|
case ACPI_DMT_FLAGS2:
|
|
|
|
BitPosition = 2;
|
|
BitLength = 2;
|
|
break;
|
|
|
|
default:
|
|
|
|
DtFatal (ASL_MSG_COMPILER_INTERNAL, Field, "Invalid flag opcode");
|
|
break;
|
|
}
|
|
|
|
/* Check range of the input flag value */
|
|
|
|
if (Value >= ((UINT64) 1 << BitLength))
|
|
{
|
|
sprintf (MsgBuffer, "Maximum %u bit", BitLength);
|
|
DtError (ASL_ERROR, ASL_MSG_FLAG_VALUE, Field, MsgBuffer);
|
|
Value = 0;
|
|
}
|
|
|
|
*Buffer |= (UINT8) (Value << BitPosition);
|
|
}
|