672 lines
22 KiB
C
672 lines
22 KiB
C
/*******************************************************************************
|
|
*
|
|
* Module Name: rsirq - IRQ resource descriptors
|
|
* $Revision: 30 $
|
|
*
|
|
******************************************************************************/
|
|
|
|
/******************************************************************************
|
|
*
|
|
* 1. Copyright Notice
|
|
*
|
|
* Some or all of this work - Copyright (c) 1999 - 2002, 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.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#define __RSIRQ_C__
|
|
|
|
#include "acpi.h"
|
|
#include "acresrc.h"
|
|
|
|
#define _COMPONENT ACPI_RESOURCES
|
|
ACPI_MODULE_NAME ("rsirq")
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsIrqResource
|
|
*
|
|
* PARAMETERS: ByteStreamBuffer - Pointer to the resource input byte
|
|
* stream
|
|
* BytesConsumed - Pointer to where the number of bytes
|
|
* consumed the ByteStreamBuffer is
|
|
* returned
|
|
* OutputBuffer - Pointer to the return data buffer
|
|
* StructureSize - Pointer to where the number of bytes
|
|
* in the return data struct is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Take the resource byte stream and fill out the appropriate
|
|
* structure pointed to by the OutputBuffer. Return the
|
|
* number of bytes consumed from the byte stream.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRsIrqResource (
|
|
UINT8 *ByteStreamBuffer,
|
|
ACPI_SIZE *BytesConsumed,
|
|
UINT8 **OutputBuffer,
|
|
ACPI_SIZE *StructureSize)
|
|
{
|
|
UINT8 *Buffer = ByteStreamBuffer;
|
|
ACPI_RESOURCE *OutputStruct = (void *) *OutputBuffer;
|
|
UINT16 Temp16 = 0;
|
|
UINT8 Temp8 = 0;
|
|
UINT8 Index;
|
|
UINT8 i;
|
|
ACPI_SIZE StructSize = ACPI_SIZEOF_RESOURCE (ACPI_RESOURCE_IRQ);
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("RsIrqResource");
|
|
|
|
|
|
/*
|
|
* The number of bytes consumed are contained in the descriptor
|
|
* (Bits:0-1)
|
|
*/
|
|
Temp8 = *Buffer;
|
|
*BytesConsumed = (Temp8 & 0x03) + 1;
|
|
OutputStruct->Id = ACPI_RSTYPE_IRQ;
|
|
|
|
/*
|
|
* Point to the 16-bits of Bytes 1 and 2
|
|
*/
|
|
Buffer += 1;
|
|
ACPI_MOVE_UNALIGNED16_TO_16 (&Temp16, Buffer);
|
|
|
|
OutputStruct->Data.Irq.NumberOfInterrupts = 0;
|
|
|
|
/* Decode the IRQ bits */
|
|
|
|
for (i = 0, Index = 0; Index < 16; Index++)
|
|
{
|
|
if ((Temp16 >> Index) & 0x01)
|
|
{
|
|
OutputStruct->Data.Irq.Interrupts[i] = Index;
|
|
i++;
|
|
}
|
|
}
|
|
|
|
/* Zero interrupts is valid */
|
|
|
|
OutputStruct->Data.Irq.NumberOfInterrupts = i;
|
|
if (i > 0)
|
|
{
|
|
/*
|
|
* Calculate the structure size based upon the number of interrupts
|
|
*/
|
|
StructSize += ((ACPI_SIZE) i - 1) * 4;
|
|
}
|
|
|
|
/*
|
|
* Point to Byte 3 if it is used
|
|
*/
|
|
if (4 == *BytesConsumed)
|
|
{
|
|
Buffer += 2;
|
|
Temp8 = *Buffer;
|
|
|
|
/*
|
|
* Check for HE, LL or HL
|
|
*/
|
|
if (Temp8 & 0x01)
|
|
{
|
|
OutputStruct->Data.Irq.EdgeLevel = ACPI_EDGE_SENSITIVE;
|
|
OutputStruct->Data.Irq.ActiveHighLow = ACPI_ACTIVE_HIGH;
|
|
}
|
|
else
|
|
{
|
|
if (Temp8 & 0x8)
|
|
{
|
|
OutputStruct->Data.Irq.EdgeLevel = ACPI_LEVEL_SENSITIVE;
|
|
OutputStruct->Data.Irq.ActiveHighLow = ACPI_ACTIVE_LOW;
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Only _LL and _HE polarity/trigger interrupts
|
|
* are allowed (ACPI spec v1.0b ection 6.4.2.1),
|
|
* so an error will occur if we reach this point
|
|
*/
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid interrupt polarity/trigger in resource list\n"));
|
|
return_ACPI_STATUS (AE_BAD_DATA);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Check for sharable
|
|
*/
|
|
OutputStruct->Data.Irq.SharedExclusive = (Temp8 >> 3) & 0x01;
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Assume Edge Sensitive, Active High, Non-Sharable
|
|
* per ACPI Specification
|
|
*/
|
|
OutputStruct->Data.Irq.EdgeLevel = ACPI_EDGE_SENSITIVE;
|
|
OutputStruct->Data.Irq.ActiveHighLow = ACPI_ACTIVE_HIGH;
|
|
OutputStruct->Data.Irq.SharedExclusive = ACPI_EXCLUSIVE;
|
|
}
|
|
|
|
/*
|
|
* Set the Length parameter
|
|
*/
|
|
OutputStruct->Length = (UINT32) StructSize;
|
|
|
|
/*
|
|
* Return the final size of the structure
|
|
*/
|
|
*StructureSize = StructSize;
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsIrqStream
|
|
*
|
|
* PARAMETERS: LinkedList - Pointer to the resource linked list
|
|
* OutputBuffer - Pointer to the user's return buffer
|
|
* BytesConsumed - Pointer to where the number of bytes
|
|
* used in the OutputBuffer is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Take the linked list resource structure and fills in the
|
|
* the appropriate bytes in a byte stream
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRsIrqStream (
|
|
ACPI_RESOURCE *LinkedList,
|
|
UINT8 **OutputBuffer,
|
|
ACPI_SIZE *BytesConsumed)
|
|
{
|
|
UINT8 *Buffer = *OutputBuffer;
|
|
UINT16 Temp16 = 0;
|
|
UINT8 Temp8 = 0;
|
|
UINT8 Index;
|
|
BOOLEAN IRQInfoByteNeeded;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("RsIrqStream");
|
|
|
|
|
|
/*
|
|
* The descriptor field is set based upon whether a third byte is
|
|
* needed to contain the IRQ Information.
|
|
*/
|
|
if (ACPI_EDGE_SENSITIVE == LinkedList->Data.Irq.EdgeLevel &&
|
|
ACPI_ACTIVE_HIGH == LinkedList->Data.Irq.ActiveHighLow &&
|
|
ACPI_EXCLUSIVE == LinkedList->Data.Irq.SharedExclusive)
|
|
{
|
|
*Buffer = 0x22;
|
|
IRQInfoByteNeeded = FALSE;
|
|
}
|
|
else
|
|
{
|
|
*Buffer = 0x23;
|
|
IRQInfoByteNeeded = TRUE;
|
|
}
|
|
|
|
Buffer += 1;
|
|
Temp16 = 0;
|
|
|
|
/*
|
|
* Loop through all of the interrupts and set the mask bits
|
|
*/
|
|
for(Index = 0;
|
|
Index < LinkedList->Data.Irq.NumberOfInterrupts;
|
|
Index++)
|
|
{
|
|
Temp8 = (UINT8) LinkedList->Data.Irq.Interrupts[Index];
|
|
Temp16 |= 0x1 << Temp8;
|
|
}
|
|
|
|
ACPI_MOVE_UNALIGNED16_TO_16 (Buffer, &Temp16);
|
|
Buffer += 2;
|
|
|
|
/*
|
|
* Set the IRQ Info byte if needed.
|
|
*/
|
|
if (IRQInfoByteNeeded)
|
|
{
|
|
Temp8 = 0;
|
|
Temp8 = (UINT8) ((LinkedList->Data.Irq.SharedExclusive &
|
|
0x01) << 4);
|
|
|
|
if (ACPI_LEVEL_SENSITIVE == LinkedList->Data.Irq.EdgeLevel &&
|
|
ACPI_ACTIVE_LOW == LinkedList->Data.Irq.ActiveHighLow)
|
|
{
|
|
Temp8 |= 0x08;
|
|
}
|
|
else
|
|
{
|
|
Temp8 |= 0x01;
|
|
}
|
|
|
|
*Buffer = Temp8;
|
|
Buffer += 1;
|
|
}
|
|
|
|
/*
|
|
* Return the number of bytes consumed in this operation
|
|
*/
|
|
*BytesConsumed = ACPI_PTR_DIFF (Buffer, *OutputBuffer);
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsExtendedIrqResource
|
|
*
|
|
* PARAMETERS: ByteStreamBuffer - Pointer to the resource input byte
|
|
* stream
|
|
* BytesConsumed - Pointer to where the number of bytes
|
|
* consumed the ByteStreamBuffer is
|
|
* returned
|
|
* OutputBuffer - Pointer to the return data buffer
|
|
* StructureSize - Pointer to where the number of bytes
|
|
* in the return data struct is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Take the resource byte stream and fill out the appropriate
|
|
* structure pointed to by the OutputBuffer. Return the
|
|
* number of bytes consumed from the byte stream.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRsExtendedIrqResource (
|
|
UINT8 *ByteStreamBuffer,
|
|
ACPI_SIZE *BytesConsumed,
|
|
UINT8 **OutputBuffer,
|
|
ACPI_SIZE *StructureSize)
|
|
{
|
|
UINT8 *Buffer = ByteStreamBuffer;
|
|
ACPI_RESOURCE *OutputStruct = (void *) *OutputBuffer;
|
|
UINT16 Temp16 = 0;
|
|
UINT8 Temp8 = 0;
|
|
UINT8 *TempPtr;
|
|
UINT8 Index;
|
|
ACPI_SIZE StructSize = ACPI_SIZEOF_RESOURCE (ACPI_RESOURCE_EXT_IRQ);
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("RsExtendedIrqResource");
|
|
|
|
|
|
/*
|
|
* Point past the Descriptor to get the number of bytes consumed
|
|
*/
|
|
Buffer += 1;
|
|
ACPI_MOVE_UNALIGNED16_TO_16 (&Temp16, Buffer);
|
|
|
|
*BytesConsumed = Temp16 + 3;
|
|
OutputStruct->Id = ACPI_RSTYPE_EXT_IRQ;
|
|
|
|
/*
|
|
* Point to the Byte3
|
|
*/
|
|
Buffer += 2;
|
|
Temp8 = *Buffer;
|
|
|
|
OutputStruct->Data.ExtendedIrq.ProducerConsumer = Temp8 & 0x01;
|
|
|
|
/*
|
|
* Check for Interrupt Mode
|
|
*
|
|
* The definition of an Extended IRQ changed between ACPI spec v1.0b
|
|
* and ACPI spec 2.0 (section 6.4.3.6 in both).
|
|
*
|
|
* - Edge/Level are defined opposite in the table vs the headers
|
|
*/
|
|
OutputStruct->Data.ExtendedIrq.EdgeLevel =
|
|
(Temp8 & 0x2) ? ACPI_EDGE_SENSITIVE : ACPI_LEVEL_SENSITIVE;
|
|
|
|
/*
|
|
* Check Interrupt Polarity
|
|
*/
|
|
OutputStruct->Data.ExtendedIrq.ActiveHighLow = (Temp8 >> 2) & 0x1;
|
|
|
|
/*
|
|
* Check for sharable
|
|
*/
|
|
OutputStruct->Data.ExtendedIrq.SharedExclusive = (Temp8 >> 3) & 0x01;
|
|
|
|
/*
|
|
* Point to Byte4 (IRQ Table length)
|
|
*/
|
|
Buffer += 1;
|
|
Temp8 = *Buffer;
|
|
|
|
OutputStruct->Data.ExtendedIrq.NumberOfInterrupts = Temp8;
|
|
|
|
/*
|
|
* Add any additional structure size to properly calculate
|
|
* the next pointer at the end of this function
|
|
*/
|
|
StructSize += (Temp8 - 1) * 4;
|
|
|
|
/*
|
|
* Point to Byte5 (First IRQ Number)
|
|
*/
|
|
Buffer += 1;
|
|
|
|
/*
|
|
* Cycle through every IRQ in the table
|
|
*/
|
|
for (Index = 0; Index < Temp8; Index++)
|
|
{
|
|
ACPI_MOVE_UNALIGNED32_TO_32 (
|
|
&OutputStruct->Data.ExtendedIrq.Interrupts[Index], Buffer);
|
|
|
|
/* Point to the next IRQ */
|
|
|
|
Buffer += 4;
|
|
}
|
|
|
|
/*
|
|
* This will leave us pointing to the Resource Source Index
|
|
* If it is present, then save it off and calculate the
|
|
* pointer to where the null terminated string goes:
|
|
* Each Interrupt takes 32-bits + the 5 bytes of the
|
|
* stream that are default.
|
|
*/
|
|
if (*BytesConsumed >
|
|
((ACPI_SIZE) OutputStruct->Data.ExtendedIrq.NumberOfInterrupts * 4) + 5)
|
|
{
|
|
/* Dereference the Index */
|
|
|
|
Temp8 = *Buffer;
|
|
OutputStruct->Data.ExtendedIrq.ResourceSource.Index = (UINT32) Temp8;
|
|
|
|
/* Point to the String */
|
|
|
|
Buffer += 1;
|
|
|
|
/*
|
|
* Point the String pointer to the end of this structure.
|
|
*/
|
|
OutputStruct->Data.ExtendedIrq.ResourceSource.StringPtr =
|
|
(NATIVE_CHAR *)(OutputStruct + StructSize);
|
|
|
|
TempPtr = (UINT8 *) OutputStruct->Data.ExtendedIrq.ResourceSource.StringPtr;
|
|
|
|
/* Copy the string into the buffer */
|
|
|
|
Index = 0;
|
|
while (0x00 != *Buffer)
|
|
{
|
|
*TempPtr = *Buffer;
|
|
|
|
TempPtr += 1;
|
|
Buffer += 1;
|
|
Index += 1;
|
|
}
|
|
|
|
/*
|
|
* Add the terminating null
|
|
*/
|
|
*TempPtr = 0x00;
|
|
OutputStruct->Data.ExtendedIrq.ResourceSource.StringLength = Index + 1;
|
|
|
|
/*
|
|
* In order for the StructSize to fall on a 32-bit boundary,
|
|
* calculate the length of the string and expand the
|
|
* StructSize to the next 32-bit boundary.
|
|
*/
|
|
Temp8 = (UINT8) (Index + 1);
|
|
StructSize += ACPI_ROUND_UP_TO_32BITS (Temp8);
|
|
}
|
|
else
|
|
{
|
|
OutputStruct->Data.ExtendedIrq.ResourceSource.Index = 0x00;
|
|
OutputStruct->Data.ExtendedIrq.ResourceSource.StringLength = 0;
|
|
OutputStruct->Data.ExtendedIrq.ResourceSource.StringPtr = NULL;
|
|
}
|
|
|
|
/*
|
|
* Set the Length parameter
|
|
*/
|
|
OutputStruct->Length = (UINT32) StructSize;
|
|
|
|
/*
|
|
* Return the final size of the structure
|
|
*/
|
|
*StructureSize = StructSize;
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsExtendedIrqStream
|
|
*
|
|
* PARAMETERS: LinkedList - Pointer to the resource linked list
|
|
* OutputBuffer - Pointer to the user's return buffer
|
|
* BytesConsumed - Pointer to where the number of bytes
|
|
* used in the OutputBuffer is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Take the linked list resource structure and fills in the
|
|
* the appropriate bytes in a byte stream
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRsExtendedIrqStream (
|
|
ACPI_RESOURCE *LinkedList,
|
|
UINT8 **OutputBuffer,
|
|
ACPI_SIZE *BytesConsumed)
|
|
{
|
|
UINT8 *Buffer = *OutputBuffer;
|
|
UINT16 *LengthField;
|
|
UINT8 Temp8 = 0;
|
|
UINT8 Index;
|
|
NATIVE_CHAR *TempPointer = NULL;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("RsExtendedIrqStream");
|
|
|
|
|
|
/*
|
|
* The descriptor field is static
|
|
*/
|
|
*Buffer = 0x89;
|
|
Buffer += 1;
|
|
|
|
/*
|
|
* Set a pointer to the Length field - to be filled in later
|
|
*/
|
|
LengthField = ACPI_CAST_PTR (UINT16, Buffer);
|
|
Buffer += 2;
|
|
|
|
/*
|
|
* Set the Interrupt vector flags
|
|
*/
|
|
Temp8 = (UINT8)(LinkedList->Data.ExtendedIrq.ProducerConsumer & 0x01);
|
|
Temp8 |= ((LinkedList->Data.ExtendedIrq.SharedExclusive & 0x01) << 3);
|
|
|
|
/*
|
|
* Set the Interrupt Mode
|
|
*
|
|
* The definition of an Extended IRQ changed between ACPI spec v1.0b
|
|
* and ACPI spec 2.0 (section 6.4.3.6 in both). This code does not
|
|
* implement the more restrictive definition of 1.0b
|
|
*
|
|
* - Edge/Level are defined opposite in the table vs the headers
|
|
*/
|
|
if (ACPI_EDGE_SENSITIVE == LinkedList->Data.ExtendedIrq.EdgeLevel)
|
|
{
|
|
Temp8 |= 0x2;
|
|
}
|
|
|
|
/*
|
|
* Set the Interrupt Polarity
|
|
*/
|
|
Temp8 |= ((LinkedList->Data.ExtendedIrq.ActiveHighLow & 0x1) << 2);
|
|
|
|
*Buffer = Temp8;
|
|
Buffer += 1;
|
|
|
|
/*
|
|
* Set the Interrupt table length
|
|
*/
|
|
Temp8 = (UINT8) LinkedList->Data.ExtendedIrq.NumberOfInterrupts;
|
|
|
|
*Buffer = Temp8;
|
|
Buffer += 1;
|
|
|
|
for (Index = 0; Index < LinkedList->Data.ExtendedIrq.NumberOfInterrupts;
|
|
Index++)
|
|
{
|
|
ACPI_MOVE_UNALIGNED32_TO_32 (Buffer,
|
|
&LinkedList->Data.ExtendedIrq.Interrupts[Index]);
|
|
Buffer += 4;
|
|
}
|
|
|
|
/*
|
|
* Resource Source Index and Resource Source are optional
|
|
*/
|
|
if (0 != LinkedList->Data.ExtendedIrq.ResourceSource.StringLength)
|
|
{
|
|
*Buffer = (UINT8) LinkedList->Data.ExtendedIrq.ResourceSource.Index;
|
|
Buffer += 1;
|
|
|
|
TempPointer = (NATIVE_CHAR *) Buffer;
|
|
|
|
/*
|
|
* Copy the string
|
|
*/
|
|
ACPI_STRCPY (TempPointer,
|
|
LinkedList->Data.ExtendedIrq.ResourceSource.StringPtr);
|
|
|
|
/*
|
|
* Buffer needs to be set to the length of the sting + one for the
|
|
* terminating null
|
|
*/
|
|
Buffer += (ACPI_STRLEN (LinkedList->Data.ExtendedIrq.ResourceSource.StringPtr) + 1);
|
|
}
|
|
|
|
/*
|
|
* Return the number of bytes consumed in this operation
|
|
*/
|
|
*BytesConsumed = ACPI_PTR_DIFF (Buffer, *OutputBuffer);
|
|
|
|
/*
|
|
* Set the length field to the number of bytes consumed
|
|
* minus the header size (3 bytes)
|
|
*/
|
|
*LengthField = (UINT16) (*BytesConsumed - 3);
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|