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| Current File : //sys/contrib/dev/acpica/disassembler/dmresrc.c |
/*******************************************************************************
*
* Module Name: dmresrc.c - Resource Descriptor disassembly
*
******************************************************************************/
/*
* Copyright (C) 2000 - 2011, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*/
#include <contrib/dev/acpica/include/acpi.h>
#include <contrib/dev/acpica/include/accommon.h>
#include <contrib/dev/acpica/include/amlcode.h>
#include <contrib/dev/acpica/include/acdisasm.h>
#ifdef ACPI_DISASSEMBLER
#define _COMPONENT ACPI_CA_DEBUGGER
ACPI_MODULE_NAME ("dbresrc")
/* Dispatch tables for Resource disassembly functions */
typedef
void (*ACPI_RESOURCE_HANDLER) (
AML_RESOURCE *Resource,
UINT32 Length,
UINT32 Level);
static ACPI_RESOURCE_HANDLER AcpiGbl_DmResourceDispatch [] =
{
/* Small descriptors */
NULL, /* 0x00, Reserved */
NULL, /* 0x01, Reserved */
NULL, /* 0x02, Reserved */
NULL, /* 0x03, Reserved */
AcpiDmIrqDescriptor, /* 0x04, ACPI_RESOURCE_NAME_IRQ_FORMAT */
AcpiDmDmaDescriptor, /* 0x05, ACPI_RESOURCE_NAME_DMA_FORMAT */
AcpiDmStartDependentDescriptor, /* 0x06, ACPI_RESOURCE_NAME_START_DEPENDENT */
AcpiDmEndDependentDescriptor, /* 0x07, ACPI_RESOURCE_NAME_END_DEPENDENT */
AcpiDmIoDescriptor, /* 0x08, ACPI_RESOURCE_NAME_IO_PORT */
AcpiDmFixedIoDescriptor, /* 0x09, ACPI_RESOURCE_NAME_FIXED_IO_PORT */
NULL, /* 0x0A, Reserved */
NULL, /* 0x0B, Reserved */
NULL, /* 0x0C, Reserved */
NULL, /* 0x0D, Reserved */
AcpiDmVendorSmallDescriptor, /* 0x0E, ACPI_RESOURCE_NAME_SMALL_VENDOR */
NULL, /* 0x0F, ACPI_RESOURCE_NAME_END_TAG (not used) */
/* Large descriptors */
NULL, /* 0x00, Reserved */
AcpiDmMemory24Descriptor, /* 0x01, ACPI_RESOURCE_NAME_MEMORY_24 */
AcpiDmGenericRegisterDescriptor,/* 0x02, ACPI_RESOURCE_NAME_GENERIC_REGISTER */
NULL, /* 0x03, Reserved */
AcpiDmVendorLargeDescriptor, /* 0x04, ACPI_RESOURCE_NAME_LARGE_VENDOR */
AcpiDmMemory32Descriptor, /* 0x05, ACPI_RESOURCE_NAME_MEMORY_32 */
AcpiDmFixedMemory32Descriptor, /* 0x06, ACPI_RESOURCE_NAME_FIXED_MEMORY_32 */
AcpiDmDwordDescriptor, /* 0x07, ACPI_RESOURCE_NAME_DWORD_ADDRESS_SPACE */
AcpiDmWordDescriptor, /* 0x08, ACPI_RESOURCE_NAME_WORD_ADDRESS_SPACE */
AcpiDmInterruptDescriptor, /* 0x09, ACPI_RESOURCE_NAME_EXTENDED_XRUPT */
AcpiDmQwordDescriptor, /* 0x0A, ACPI_RESOURCE_NAME_QWORD_ADDRESS_SPACE */
AcpiDmExtendedDescriptor /* 0x0B, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS_SPACE */
};
/* Only used for single-threaded applications */
/* TBD: remove when name is passed as parameter to the dump functions */
static UINT32 ResourceName;
/*******************************************************************************
*
* FUNCTION: AcpiDmDescriptorName
*
* PARAMETERS: None
*
* RETURN: None
*
* DESCRIPTION: Emit a name for the descriptor if one is present (indicated
* by the name being changed from the default name.) A name is only
* emitted if a reference to the descriptor has been made somewhere
* in the original ASL code.
*
******************************************************************************/
void
AcpiDmDescriptorName (
void)
{
if (ResourceName == ACPI_DEFAULT_RESNAME)
{
return;
}
AcpiOsPrintf ("%4.4s", (char *) &ResourceName);
}
/*******************************************************************************
*
* FUNCTION: AcpiDmDumpInteger*
*
* PARAMETERS: Value - Value to emit
* Name - Associated name (emitted as a comment)
*
* RETURN: None
*
* DESCRIPTION: Integer output helper functions
*
******************************************************************************/
void
AcpiDmDumpInteger8 (
UINT8 Value,
char *Name)
{
AcpiOsPrintf ("0x%2.2X, // %s\n", Value, Name);
}
void
AcpiDmDumpInteger16 (
UINT16 Value,
char *Name)
{
AcpiOsPrintf ("0x%4.4X, // %s\n", Value, Name);
}
void
AcpiDmDumpInteger32 (
UINT32 Value,
char *Name)
{
AcpiOsPrintf ("0x%8.8X, // %s\n", Value, Name);
}
void
AcpiDmDumpInteger64 (
UINT64 Value,
char *Name)
{
AcpiOsPrintf ("0x%8.8X%8.8X, // %s\n", ACPI_FORMAT_UINT64 (Value), Name);
}
/*******************************************************************************
*
* FUNCTION: AcpiDmBitList
*
* PARAMETERS: Mask - 16-bit value corresponding to 16 interrupt
* or DMA values
*
* RETURN: None
*
* DESCRIPTION: Dump a bit mask as a list of individual interrupt/DMA levels.
*
******************************************************************************/
void
AcpiDmBitList (
UINT16 Mask)
{
UINT32 i;
BOOLEAN Previous = FALSE;
/* Open the initializer list */
AcpiOsPrintf ("{");
/* Examine each bit */
for (i = 0; i < 16; i++)
{
/* Only interested in bits that are set to 1 */
if (Mask & 1)
{
if (Previous)
{
AcpiOsPrintf (",");
}
Previous = TRUE;
AcpiOsPrintf ("%u", i);
}
Mask >>= 1;
}
/* Close list */
AcpiOsPrintf ("}\n");
}
/*******************************************************************************
*
* FUNCTION: AcpiDmResourceTemplate
*
* PARAMETERS: Info - Curent parse tree walk info
* ByteData - Pointer to the byte list data
* ByteCount - Length of the byte list
*
* RETURN: None
*
* DESCRIPTION: Dump the contents of a Resource Template containing a set of
* Resource Descriptors.
*
******************************************************************************/
void
AcpiDmResourceTemplate (
ACPI_OP_WALK_INFO *Info,
ACPI_PARSE_OBJECT *Op,
UINT8 *ByteData,
UINT32 ByteCount)
{
ACPI_STATUS Status;
UINT32 CurrentByteOffset;
UINT8 ResourceType;
UINT32 ResourceLength;
void *Aml;
UINT32 Level;
BOOLEAN DependentFns = FALSE;
UINT8 ResourceIndex;
ACPI_NAMESPACE_NODE *Node;
Level = Info->Level;
ResourceName = ACPI_DEFAULT_RESNAME;
Node = Op->Common.Node;
if (Node)
{
Node = Node->Child;
}
for (CurrentByteOffset = 0; CurrentByteOffset < ByteCount;)
{
Aml = &ByteData[CurrentByteOffset];
/* Get the descriptor type and length */
ResourceType = AcpiUtGetResourceType (Aml);
ResourceLength = AcpiUtGetResourceLength (Aml);
/* Validate the Resource Type and Resource Length */
Status = AcpiUtValidateResource (Aml, &ResourceIndex);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("/*** Could not validate Resource, type (%X) %s***/\n",
ResourceType, AcpiFormatException (Status));
return;
}
/* Point to next descriptor */
CurrentByteOffset += AcpiUtGetDescriptorLength (Aml);
/* Descriptor pre-processing */
switch (ResourceType)
{
case ACPI_RESOURCE_NAME_START_DEPENDENT:
/* Finish a previous StartDependentFns */
if (DependentFns)
{
Level--;
AcpiDmIndent (Level);
AcpiOsPrintf ("}\n");
}
break;
case ACPI_RESOURCE_NAME_END_DEPENDENT:
Level--;
DependentFns = FALSE;
break;
case ACPI_RESOURCE_NAME_END_TAG:
/* Normal exit, the resource list is finished */
if (DependentFns)
{
/*
* Close an open StartDependentDescriptor. This indicates a
* missing EndDependentDescriptor.
*/
Level--;
DependentFns = FALSE;
/* Go ahead and insert EndDependentFn() */
AcpiDmEndDependentDescriptor (Aml, ResourceLength, Level);
AcpiDmIndent (Level);
AcpiOsPrintf (
"/*** Disassembler: inserted missing EndDependentFn () ***/\n");
}
return;
default:
break;
}
/* Disassemble the resource structure */
if (Node)
{
ResourceName = Node->Name.Integer;
Node = Node->Peer;
}
AcpiGbl_DmResourceDispatch [ResourceIndex] (
Aml, ResourceLength, Level);
/* Descriptor post-processing */
if (ResourceType == ACPI_RESOURCE_NAME_START_DEPENDENT)
{
DependentFns = TRUE;
Level++;
}
}
}
/*******************************************************************************
*
* FUNCTION: AcpiDmIsResourceTemplate
*
* PARAMETERS: Op - Buffer Op to be examined
*
* RETURN: Status. AE_OK if valid template
*
* DESCRIPTION: Walk a byte list to determine if it consists of a valid set
* of resource descriptors. Nothing is output.
*
******************************************************************************/
ACPI_STATUS
AcpiDmIsResourceTemplate (
ACPI_PARSE_OBJECT *Op)
{
ACPI_STATUS Status;
ACPI_PARSE_OBJECT *NextOp;
UINT8 *Aml;
UINT8 *EndAml;
ACPI_SIZE Length;
/* This op must be a buffer */
if (Op->Common.AmlOpcode != AML_BUFFER_OP)
{
return (AE_TYPE);
}
/* Get the ByteData list and length */
NextOp = Op->Common.Value.Arg;
NextOp = NextOp->Common.Next;
if (!NextOp)
{
return (AE_TYPE);
}
Aml = NextOp->Named.Data;
Length = (ACPI_SIZE) NextOp->Common.Value.Integer;
/* Walk the byte list, abort on any invalid descriptor type or length */
Status = AcpiUtWalkAmlResources (Aml, Length, NULL, &EndAml);
if (ACPI_FAILURE (Status))
{
return (AE_TYPE);
}
/*
* For the resource template to be valid, one EndTag must appear
* at the very end of the ByteList, not before. (For proper disassembly
* of a ResourceTemplate, the buffer must not have any extra data after
* the EndTag.)
*/
if ((Aml + Length - sizeof (AML_RESOURCE_END_TAG)) != EndAml)
{
return (AE_AML_NO_RESOURCE_END_TAG);
}
/*
* All resource descriptors are valid, therefore this list appears
* to be a valid resource template
*/
return (AE_OK);
}
#endif