529 lines
16 KiB
C
529 lines
16 KiB
C
/*******************************************************************************
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*
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* Module Name: dmresrc.c - Resource Descriptor disassembly
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* $Revision: 5 $
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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 - 2002, 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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#include "acpi.h"
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#include "amlcode.h"
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#include "acdisasm.h"
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#ifdef ACPI_DISASSEMBLER
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#define _COMPONENT ACPI_CA_DEBUGGER
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ACPI_MODULE_NAME ("dbresrc")
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/*******************************************************************************
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*
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* FUNCTION: AcpiDmBitList
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*
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* PARAMETERS: Mask - 16-bit value corresponding to 16 interrupt
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* or DMA values
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*
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* RETURN: None
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*
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* DESCRIPTION: Dump a bit mask as a list of individual interrupt/dma levels.
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*
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******************************************************************************/
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void
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AcpiDmBitList (
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UINT16 Mask)
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{
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UINT32 i;
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BOOLEAN Previous = FALSE;
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/* Open the initializer list */
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AcpiOsPrintf (") {");
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/* Examine each bit */
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for (i = 0; i < 16; i++)
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{
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/* Only interested in bits that are set to 1 */
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if (Mask & 1)
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{
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if (Previous)
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{
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AcpiOsPrintf (",");
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}
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Previous = TRUE;
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AcpiOsPrintf ("%d", i);
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}
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Mask >>= 1;
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}
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/* Close list */
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AcpiOsPrintf ("}\n");
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDmResourceDescriptor
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*
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* PARAMETERS: Info - Curent parse tree walk info
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* ByteData - Pointer to the byte list data
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* ByteCount - Length of the byte list
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*
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* RETURN: None
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*
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* DESCRIPTION: Dump the contents of one ResourceTemplate descriptor.
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*
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******************************************************************************/
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void
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AcpiDmResourceDescriptor (
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ACPI_OP_WALK_INFO *Info,
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UINT8 *ByteData,
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UINT32 ByteCount)
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{
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NATIVE_UINT CurrentByteOffset;
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UINT8 CurrentByte;
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UINT8 DescriptorId;
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UINT32 Length;
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void *DescriptorBody;
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UINT32 Level;
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BOOLEAN DependentFns = FALSE;
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Level = Info->Level;
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for (CurrentByteOffset = 0; CurrentByteOffset < ByteCount; )
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{
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CurrentByte = ByteData[CurrentByteOffset];
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DescriptorBody = &ByteData[CurrentByteOffset];
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if (CurrentByte & ACPI_RDESC_TYPE_LARGE)
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{
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DescriptorId = CurrentByte;
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Length = (* (ACPI_CAST_PTR (UINT16, &ByteData[CurrentByteOffset + 1])));
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CurrentByteOffset += 3;
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}
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else
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{
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DescriptorId = (UINT8) (CurrentByte & 0xF8);
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Length = (ByteData[CurrentByteOffset] & 0x7);
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CurrentByteOffset += 1;
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}
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CurrentByteOffset += (NATIVE_UINT) Length;
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/* Determine type of resource */
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switch (DescriptorId)
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{
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/*
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* "Small" type descriptors
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*/
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case ACPI_RDESC_TYPE_IRQ_FORMAT:
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AcpiDmIrqDescriptor (DescriptorBody, Length, Level);
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break;
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case ACPI_RDESC_TYPE_DMA_FORMAT:
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AcpiDmDmaDescriptor (DescriptorBody, Length, Level);
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break;
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case ACPI_RDESC_TYPE_START_DEPENDENT:
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/* Finish a previous StartDependentFns */
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if (DependentFns)
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{
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Level--;
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AcpiDmIndent (Level);
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AcpiOsPrintf ("}\n");
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}
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AcpiDmStartDependentDescriptor (DescriptorBody, Length, Level);
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DependentFns = TRUE;
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Level++;
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break;
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case ACPI_RDESC_TYPE_END_DEPENDENT:
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Level--;
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DependentFns = FALSE;
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AcpiDmEndDependentDescriptor (DescriptorBody, Length, Level);
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break;
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case ACPI_RDESC_TYPE_IO_PORT:
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AcpiDmIoDescriptor (DescriptorBody, Length, Level);
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break;
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case ACPI_RDESC_TYPE_FIXED_IO_PORT:
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AcpiDmFixedIoDescriptor (DescriptorBody, Length, Level);
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break;
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case ACPI_RDESC_TYPE_SMALL_VENDOR:
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AcpiDmVendorSmallDescriptor (DescriptorBody, Length, Level);
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break;
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case ACPI_RDESC_TYPE_END_TAG:
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if (DependentFns)
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{
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/*
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* Close an open StartDependentDescriptor. This indicates a missing
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* EndDependentDescriptor.
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*/
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Level--;
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DependentFns = FALSE;
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AcpiDmIndent (Level);
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AcpiOsPrintf ("}\n");
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AcpiDmIndent (Level);
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AcpiOsPrintf ("/*** Missing EndDependentFunctions descriptor */");
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/*
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* We could fix the problem, but then the ASL would not match the AML
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* So, we don't do this:
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* AcpiDmEndDependentDescriptor (DescriptorBody, Length, Level);
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*/
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}
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return;
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/*
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* "Large" type descriptors
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*/
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case ACPI_RDESC_TYPE_MEMORY_24:
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AcpiDmMemory24Descriptor (DescriptorBody, Length, Level);
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break;
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case ACPI_RDESC_TYPE_GENERAL_REGISTER:
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AcpiDmGenericRegisterDescriptor (DescriptorBody, Length, Level);
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break;
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case ACPI_RDESC_TYPE_LARGE_VENDOR:
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AcpiDmVendorLargeDescriptor (DescriptorBody, Length, Level);
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break;
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case ACPI_RDESC_TYPE_MEMORY_32:
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AcpiDmMemory32Descriptor (DescriptorBody, Length, Level);
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break;
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case ACPI_RDESC_TYPE_FIXED_MEMORY_32:
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AcpiDmFixedMem32Descriptor (DescriptorBody, Length, Level);
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break;
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case ACPI_RDESC_TYPE_DWORD_ADDRESS_SPACE:
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AcpiDmDwordDescriptor (DescriptorBody, Length, Level);
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break;
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case ACPI_RDESC_TYPE_WORD_ADDRESS_SPACE:
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AcpiDmWordDescriptor (DescriptorBody, Length, Level);
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break;
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case ACPI_RDESC_TYPE_EXTENDED_XRUPT:
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AcpiDmInterruptDescriptor (DescriptorBody, Length, Level);
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break;
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case ACPI_RDESC_TYPE_QWORD_ADDRESS_SPACE:
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AcpiDmQwordDescriptor (DescriptorBody, Length, Level);
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break;
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default:
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/*
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* Anything else is unrecognized.
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*
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* Since the entire resource buffer has been already walked and
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* validated, this is a very serious error indicating that someone
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* overwrote the buffer.
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*/
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AcpiOsPrintf ("/* Unknown Resource type (%X) */\n", DescriptorId);
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return;
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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: AcpiDmIsResourceDescriptor
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*
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* PARAMETERS: Op - Buffer Op to be examined
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*
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* RETURN: TRUE if this Buffer Op contains a valid resource
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* descriptor.
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*
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* DESCRIPTION: Walk a byte list to determine if it consists of a valid set
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* of resource descriptors. Nothing is output.
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*
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******************************************************************************/
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BOOLEAN
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AcpiDmIsResourceDescriptor (
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ACPI_PARSE_OBJECT *Op)
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{
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UINT8 *ByteData;
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UINT32 ByteCount;
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ACPI_PARSE_OBJECT *NextOp;
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NATIVE_UINT CurrentByteOffset;
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UINT8 CurrentByte;
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UINT8 DescriptorId;
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UINT32 Length;
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/* This op must be a buffer */
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if (Op->Common.AmlOpcode != AML_BUFFER_OP)
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{
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return FALSE;
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}
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/* Get to the ByteData list */
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NextOp = Op->Common.Value.Arg;
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NextOp = NextOp->Common.Next;
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if (!NextOp)
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{
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return (FALSE);
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}
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/* Extract the data pointer and data length */
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ByteCount = NextOp->Common.Value.Integer32;
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ByteData = NextOp->Named.Data;
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/* The list must have a valid END_TAG */
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if (ByteData[ByteCount-2] != (ACPI_RDESC_TYPE_END_TAG | 1))
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{
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return FALSE;
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}
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/*
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* Walk the byte list. Abort on any invalid descriptor ID or
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* or length
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*/
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for (CurrentByteOffset = 0; CurrentByteOffset < ByteCount; )
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{
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CurrentByte = ByteData[CurrentByteOffset];
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/* Large or small resource? */
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if (CurrentByte & ACPI_RDESC_TYPE_LARGE)
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{
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DescriptorId = CurrentByte;
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Length = (* (ACPI_CAST_PTR (UINT16, (&ByteData[CurrentByteOffset + 1]))));
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CurrentByteOffset += 3;
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}
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else
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{
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DescriptorId = (UINT8) (CurrentByte & 0xF8);
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Length = (ByteData[CurrentByteOffset] & 0x7);
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CurrentByteOffset += 1;
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}
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CurrentByteOffset += (NATIVE_UINT) Length;
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/* Determine type of resource */
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switch (DescriptorId)
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{
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/*
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* "Small" type descriptors
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*/
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case ACPI_RDESC_TYPE_IRQ_FORMAT:
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case ACPI_RDESC_TYPE_DMA_FORMAT:
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case ACPI_RDESC_TYPE_START_DEPENDENT:
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case ACPI_RDESC_TYPE_END_DEPENDENT:
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case ACPI_RDESC_TYPE_IO_PORT:
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case ACPI_RDESC_TYPE_FIXED_IO_PORT:
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case ACPI_RDESC_TYPE_SMALL_VENDOR:
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/*
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* "Large" type descriptors
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*/
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case ACPI_RDESC_TYPE_MEMORY_24:
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case ACPI_RDESC_TYPE_GENERAL_REGISTER:
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case ACPI_RDESC_TYPE_LARGE_VENDOR:
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case ACPI_RDESC_TYPE_MEMORY_32:
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case ACPI_RDESC_TYPE_FIXED_MEMORY_32:
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case ACPI_RDESC_TYPE_DWORD_ADDRESS_SPACE:
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case ACPI_RDESC_TYPE_WORD_ADDRESS_SPACE:
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case ACPI_RDESC_TYPE_EXTENDED_XRUPT:
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case ACPI_RDESC_TYPE_QWORD_ADDRESS_SPACE:
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/* Valid descriptor ID, keep going */
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break;
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case ACPI_RDESC_TYPE_END_TAG:
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/* We must be at the end of the ByteList */
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if (CurrentByteOffset != ByteCount)
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{
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return (FALSE);
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}
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/* All descriptors/lengths valid, this is a valid descriptor */
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return (TRUE);
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default:
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/* Bad descriptor, abort */
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return (FALSE);
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}
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}
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/* Did not find an END_TAG, something seriously wrong */
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return (FALSE);
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}
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#endif
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