547 lines
16 KiB
C
547 lines
16 KiB
C
/*******************************************************************************
|
|
*
|
|
* Module Name: dmbuffer - AML disassembler, buffer and string support
|
|
* xRevision: 1.20 $
|
|
*
|
|
******************************************************************************/
|
|
|
|
/******************************************************************************
|
|
*
|
|
* 1. Copyright Notice
|
|
*
|
|
* Some or all of this work - Copyright (c) 1999 - 2006, Intel Corp.
|
|
* All rights reserved.
|
|
*
|
|
* 2. License
|
|
*
|
|
* 2.1. This is your license from Intel Corp. under its intellectual property
|
|
* rights. You may have additional license terms from the party that provided
|
|
* you this software, covering your right to use that party's intellectual
|
|
* property rights.
|
|
*
|
|
* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
|
|
* copy of the source code appearing in this file ("Covered Code") an
|
|
* irrevocable, perpetual, worldwide license under Intel's copyrights in the
|
|
* base code distributed originally by Intel ("Original Intel Code") to copy,
|
|
* make derivatives, distribute, use and display any portion of the Covered
|
|
* Code in any form, with the right to sublicense such rights; and
|
|
*
|
|
* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
|
|
* license (with the right to sublicense), under only those claims of Intel
|
|
* patents that are infringed by the Original Intel Code, to make, use, sell,
|
|
* offer to sell, and import the Covered Code and derivative works thereof
|
|
* solely to the minimum extent necessary to exercise the above copyright
|
|
* license, and in no event shall the patent license extend to any additions
|
|
* to or modifications of the Original Intel Code. No other license or right
|
|
* is granted directly or by implication, estoppel or otherwise;
|
|
*
|
|
* The above copyright and patent license is granted only if the following
|
|
* conditions are met:
|
|
*
|
|
* 3. Conditions
|
|
*
|
|
* 3.1. Redistribution of Source with Rights to Further Distribute Source.
|
|
* Redistribution of source code of any substantial portion of the Covered
|
|
* Code or modification with rights to further distribute source must include
|
|
* the above Copyright Notice, the above License, this list of Conditions,
|
|
* and the following Disclaimer and Export Compliance provision. In addition,
|
|
* Licensee must cause all Covered Code to which Licensee contributes to
|
|
* contain a file documenting the changes Licensee made to create that Covered
|
|
* Code and the date of any change. Licensee must include in that file the
|
|
* documentation of any changes made by any predecessor Licensee. Licensee
|
|
* must include a prominent statement that the modification is derived,
|
|
* directly or indirectly, from Original Intel Code.
|
|
*
|
|
* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
|
|
* Redistribution of source code of any substantial portion of the Covered
|
|
* Code or modification without rights to further distribute source must
|
|
* include the following Disclaimer and Export Compliance provision in the
|
|
* documentation and/or other materials provided with distribution. In
|
|
* addition, Licensee may not authorize further sublicense of source of any
|
|
* portion of the Covered Code, and must include terms to the effect that the
|
|
* license from Licensee to its licensee is limited to the intellectual
|
|
* property embodied in the software Licensee provides to its licensee, and
|
|
* not to intellectual property embodied in modifications its licensee may
|
|
* make.
|
|
*
|
|
* 3.3. Redistribution of Executable. Redistribution in executable form of any
|
|
* substantial portion of the Covered Code or modification must reproduce the
|
|
* above Copyright Notice, and the following Disclaimer and Export Compliance
|
|
* provision in the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* 3.4. Intel retains all right, title, and interest in and to the Original
|
|
* Intel Code.
|
|
*
|
|
* 3.5. Neither the name Intel nor any other trademark owned or controlled by
|
|
* Intel shall be used in advertising or otherwise to promote the sale, use or
|
|
* other dealings in products derived from or relating to the Covered Code
|
|
* without prior written authorization from Intel.
|
|
*
|
|
* 4. Disclaimer and Export Compliance
|
|
*
|
|
* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
|
|
* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
|
|
* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
|
|
* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
|
|
* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
|
|
* PARTICULAR PURPOSE.
|
|
*
|
|
* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
|
|
* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
|
|
* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
|
|
* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
|
|
* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
|
|
* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
|
|
* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
|
|
* LIMITED REMEDY.
|
|
*
|
|
* 4.3. Licensee shall not export, either directly or indirectly, any of this
|
|
* software or system incorporating such software without first obtaining any
|
|
* required license or other approval from the U. S. Department of Commerce or
|
|
* any other agency or department of the United States Government. In the
|
|
* event Licensee exports any such software from the United States or
|
|
* re-exports any such software from a foreign destination, Licensee shall
|
|
* ensure that the distribution and export/re-export of the software is in
|
|
* compliance with all laws, regulations, orders, or other restrictions of the
|
|
* U.S. Export Administration Regulations. Licensee agrees that neither it nor
|
|
* any of its subsidiaries will export/re-export any technical data, process,
|
|
* software, or service, directly or indirectly, to any country for which the
|
|
* United States government or any agency thereof requires an export license,
|
|
* other governmental approval, or letter of assurance, without first obtaining
|
|
* such license, approval or letter.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: dmbuffer.c,v 1.1 2006/03/23 13:36:31 kochi Exp $");
|
|
|
|
#include "acpi.h"
|
|
#include "acdisasm.h"
|
|
#include "acparser.h"
|
|
#include "amlcode.h"
|
|
|
|
|
|
#ifdef ACPI_DISASSEMBLER
|
|
|
|
#define _COMPONENT ACPI_CA_DEBUGGER
|
|
ACPI_MODULE_NAME ("dmbuffer")
|
|
|
|
/* Local prototypes */
|
|
|
|
static void
|
|
AcpiDmUnicode (
|
|
ACPI_PARSE_OBJECT *Op);
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDmDisasmByteList
|
|
*
|
|
* PARAMETERS: Level - Current source code indentation level
|
|
* ByteData - Pointer to the byte list
|
|
* ByteCount - Length of the byte list
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Dump an AML "ByteList" in Hex format
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiDmDisasmByteList (
|
|
UINT32 Level,
|
|
UINT8 *ByteData,
|
|
UINT32 ByteCount)
|
|
{
|
|
UINT32 i;
|
|
|
|
|
|
AcpiDmIndent (Level);
|
|
|
|
/* Dump the byte list */
|
|
|
|
for (i = 0; i < ByteCount; i++)
|
|
{
|
|
AcpiOsPrintf ("0x%2.2X", (UINT32) ByteData[i]);
|
|
|
|
/* Add comma if there are more bytes to display */
|
|
|
|
if (i < (ByteCount -1))
|
|
{
|
|
AcpiOsPrintf (", ");
|
|
}
|
|
|
|
/* New line every 8 bytes */
|
|
|
|
if ((((i+1) % 8) == 0) && ((i+1) < ByteCount))
|
|
{
|
|
AcpiOsPrintf ("\n");
|
|
AcpiDmIndent (Level);
|
|
}
|
|
}
|
|
|
|
if (Level)
|
|
{
|
|
AcpiOsPrintf ("\n");
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDmByteList
|
|
*
|
|
* PARAMETERS: Info - Parse tree walk info
|
|
* Op - Byte list op
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Dump a buffer byte list, handling the various types of buffers.
|
|
* Buffer type must be already set in the Op DisasmOpcode.
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiDmByteList (
|
|
ACPI_OP_WALK_INFO *Info,
|
|
ACPI_PARSE_OBJECT *Op)
|
|
{
|
|
UINT8 *ByteData;
|
|
UINT32 ByteCount;
|
|
|
|
|
|
ByteData = Op->Named.Data;
|
|
ByteCount = (UINT32) Op->Common.Value.Integer;
|
|
|
|
/*
|
|
* The byte list belongs to a buffer, and can be produced by either
|
|
* a ResourceTemplate, Unicode, quoted string, or a plain byte list.
|
|
*/
|
|
switch (Op->Common.Parent->Common.DisasmOpcode)
|
|
{
|
|
case ACPI_DASM_RESOURCE:
|
|
|
|
AcpiDmResourceTemplate (Info, ByteData, ByteCount);
|
|
break;
|
|
|
|
case ACPI_DASM_STRING:
|
|
|
|
AcpiDmIndent (Info->Level);
|
|
AcpiUtPrintString ((char *) ByteData, ACPI_UINT8_MAX);
|
|
AcpiOsPrintf ("\n");
|
|
break;
|
|
|
|
case ACPI_DASM_UNICODE:
|
|
|
|
AcpiDmUnicode (Op);
|
|
break;
|
|
|
|
case ACPI_DASM_BUFFER:
|
|
default:
|
|
|
|
/*
|
|
* Not a resource, string, or unicode string.
|
|
* Just dump the buffer
|
|
*/
|
|
AcpiDmDisasmByteList (Info->Level, ByteData, ByteCount);
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDmIsUnicodeBuffer
|
|
*
|
|
* PARAMETERS: Op - Buffer Object to be examined
|
|
*
|
|
* RETURN: TRUE if buffer contains a UNICODE string
|
|
*
|
|
* DESCRIPTION: Determine if a buffer Op contains a Unicode string
|
|
*
|
|
******************************************************************************/
|
|
|
|
BOOLEAN
|
|
AcpiDmIsUnicodeBuffer (
|
|
ACPI_PARSE_OBJECT *Op)
|
|
{
|
|
UINT8 *ByteData;
|
|
UINT32 ByteCount;
|
|
UINT32 WordCount;
|
|
ACPI_PARSE_OBJECT *SizeOp;
|
|
ACPI_PARSE_OBJECT *NextOp;
|
|
ACPI_NATIVE_UINT i;
|
|
|
|
|
|
/* Buffer size is the buffer argument */
|
|
|
|
SizeOp = Op->Common.Value.Arg;
|
|
|
|
/* Next, the initializer byte list to examine */
|
|
|
|
NextOp = SizeOp->Common.Next;
|
|
if (!NextOp)
|
|
{
|
|
return (FALSE);
|
|
}
|
|
|
|
/* Extract the byte list info */
|
|
|
|
ByteData = NextOp->Named.Data;
|
|
ByteCount = (UINT32) NextOp->Common.Value.Integer;
|
|
WordCount = ACPI_DIV_2 (ByteCount);
|
|
|
|
/*
|
|
* Unicode string must have an even number of bytes and last
|
|
* word must be zero
|
|
*/
|
|
if ((!ByteCount) ||
|
|
(ByteCount < 4) ||
|
|
(ByteCount & 1) ||
|
|
((UINT16 *) (void *) ByteData)[WordCount - 1] != 0)
|
|
{
|
|
return (FALSE);
|
|
}
|
|
|
|
/* For each word, 1st byte must be ascii, 2nd byte must be zero */
|
|
|
|
for (i = 0; i < (ByteCount - 2); i += 2)
|
|
{
|
|
if ((!ACPI_IS_PRINT (ByteData[i])) ||
|
|
(ByteData[i + 1] != 0))
|
|
{
|
|
return (FALSE);
|
|
}
|
|
}
|
|
|
|
/* Ignore the Size argument in the disassembly of this buffer op */
|
|
|
|
SizeOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE;
|
|
return (TRUE);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDmIsStringBuffer
|
|
*
|
|
* PARAMETERS: Op - Buffer Object to be examined
|
|
*
|
|
* RETURN: TRUE if buffer contains a ASCII string, FALSE otherwise
|
|
*
|
|
* DESCRIPTION: Determine if a buffer Op contains a ASCII string
|
|
*
|
|
******************************************************************************/
|
|
|
|
BOOLEAN
|
|
AcpiDmIsStringBuffer (
|
|
ACPI_PARSE_OBJECT *Op)
|
|
{
|
|
UINT8 *ByteData;
|
|
UINT32 ByteCount;
|
|
ACPI_PARSE_OBJECT *SizeOp;
|
|
ACPI_PARSE_OBJECT *NextOp;
|
|
UINT32 i;
|
|
|
|
|
|
/* Buffer size is the buffer argument */
|
|
|
|
SizeOp = Op->Common.Value.Arg;
|
|
|
|
/* Next, the initializer byte list to examine */
|
|
|
|
NextOp = SizeOp->Common.Next;
|
|
if (!NextOp)
|
|
{
|
|
return (FALSE);
|
|
}
|
|
|
|
/* Extract the byte list info */
|
|
|
|
ByteData = NextOp->Named.Data;
|
|
ByteCount = (UINT32) NextOp->Common.Value.Integer;
|
|
|
|
/* Last byte must be the null terminator */
|
|
|
|
if ((!ByteCount) ||
|
|
(ByteCount < 2) ||
|
|
(ByteData[ByteCount-1] != 0))
|
|
{
|
|
return (FALSE);
|
|
}
|
|
|
|
for (i = 0; i < (ByteCount - 1); i++)
|
|
{
|
|
/* TBD: allow some escapes (non-ascii chars).
|
|
* they will be handled in the string output routine
|
|
*/
|
|
|
|
if (!ACPI_IS_PRINT (ByteData[i]))
|
|
{
|
|
return (FALSE);
|
|
}
|
|
}
|
|
|
|
return (TRUE);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDmUnicode
|
|
*
|
|
* PARAMETERS: Op - Byte List op containing Unicode string
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Dump Unicode string as a standard ASCII string. (Remove
|
|
* the extra zero bytes).
|
|
*
|
|
******************************************************************************/
|
|
|
|
static void
|
|
AcpiDmUnicode (
|
|
ACPI_PARSE_OBJECT *Op)
|
|
{
|
|
UINT16 *WordData;
|
|
UINT32 WordCount;
|
|
UINT32 i;
|
|
|
|
|
|
/* Extract the buffer info as a WORD buffer */
|
|
|
|
WordData = ACPI_CAST_PTR (UINT16, Op->Named.Data);
|
|
WordCount = ACPI_DIV_2 (((UINT32) Op->Common.Value.Integer));
|
|
|
|
|
|
AcpiOsPrintf ("\"");
|
|
|
|
/* Write every other byte as an ASCII character */
|
|
|
|
for (i = 0; i < (WordCount - 1); i++)
|
|
{
|
|
AcpiOsPrintf ("%c", (int) WordData[i]);
|
|
}
|
|
|
|
AcpiOsPrintf ("\")");
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDmIsEisaId
|
|
*
|
|
* PARAMETERS: Op - Op to be examined
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Determine if an Op can be converted to an EisaId.
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiDmIsEisaId (
|
|
ACPI_PARSE_OBJECT *Op)
|
|
{
|
|
UINT32 Name;
|
|
UINT32 BigEndianId;
|
|
ACPI_PARSE_OBJECT *NextOp;
|
|
ACPI_NATIVE_UINT i;
|
|
UINT32 Prefix[3];
|
|
|
|
|
|
/* Get the NameSegment */
|
|
|
|
Name = AcpiPsGetName (Op);
|
|
if (!Name)
|
|
{
|
|
return;
|
|
}
|
|
|
|
/* We are looking for _HID */
|
|
|
|
if (ACPI_STRNCMP ((char *) &Name, METHOD_NAME__HID, 4))
|
|
{
|
|
return;
|
|
}
|
|
|
|
/* The parameter must be either a word or a dword */
|
|
|
|
NextOp = AcpiPsGetDepthNext (NULL, Op);
|
|
if ((NextOp->Common.AmlOpcode != AML_DWORD_OP) &&
|
|
(NextOp->Common.AmlOpcode != AML_WORD_OP))
|
|
{
|
|
return;
|
|
}
|
|
|
|
/* Swap from little-endian to big-endian to simplify conversion */
|
|
|
|
BigEndianId = AcpiUtDwordByteSwap ((UINT32) NextOp->Common.Value.Integer);
|
|
|
|
/* Create the 3 leading ASCII letters */
|
|
|
|
Prefix[0] = ((BigEndianId >> 26) & 0x1F) + 0x40;
|
|
Prefix[1] = ((BigEndianId >> 21) & 0x1F) + 0x40;
|
|
Prefix[2] = ((BigEndianId >> 16) & 0x1F) + 0x40;
|
|
|
|
/* Verify that all 3 are ascii and alpha */
|
|
|
|
for (i = 0; i < 3; i++)
|
|
{
|
|
if (!ACPI_IS_ASCII (Prefix[i]) ||
|
|
!ACPI_IS_ALPHA (Prefix[i]))
|
|
{
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* OK - mark this node as convertable to an EISA ID */
|
|
|
|
NextOp->Common.DisasmOpcode = ACPI_DASM_EISAID;
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDmEisaId
|
|
*
|
|
* PARAMETERS: EncodedId - Raw encoded EISA ID.
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Convert an encoded EISAID back to the original ASCII String.
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiDmEisaId (
|
|
UINT32 EncodedId)
|
|
{
|
|
UINT32 BigEndianId;
|
|
|
|
|
|
/* Swap from little-endian to big-endian to simplify conversion */
|
|
|
|
BigEndianId = AcpiUtDwordByteSwap (EncodedId);
|
|
|
|
|
|
/* Split to form "AAANNNN" string */
|
|
|
|
AcpiOsPrintf ("EisaId (\"%c%c%c%4.4X\")",
|
|
|
|
/* Three Alpha characters (AAA), 5 bits each */
|
|
|
|
(int) ((BigEndianId >> 26) & 0x1F) + 0x40,
|
|
(int) ((BigEndianId >> 21) & 0x1F) + 0x40,
|
|
(int) ((BigEndianId >> 16) & 0x1F) + 0x40,
|
|
|
|
/* Numeric part (NNNN) is simply the lower 16 bits */
|
|
|
|
(UINT32) (BigEndianId & 0xFFFF));
|
|
}
|
|
|
|
#endif
|