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freebsd/sys/contrib/dev/acpica/rsio.c

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/*******************************************************************************
*
* Module Name: rsio - IO and DMA resource descriptors
* $Revision: 23 $
*
******************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2003, 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 __RSIO_C__
#include "acpi.h"
#include "acresrc.h"
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME ("rsio")
/*******************************************************************************
*
* FUNCTION: AcpiRsIoResource
*
* 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
AcpiRsIoResource (
UINT8 *ByteStreamBuffer,
ACPI_SIZE *BytesConsumed,
UINT8 **OutputBuffer,
ACPI_SIZE *StructureSize)
{
UINT8 *Buffer = ByteStreamBuffer;
ACPI_RESOURCE *OutputStruct = (void *) *OutputBuffer;
UINT16 Temp16 = 0;
UINT8 Temp8 = 0;
ACPI_SIZE StructSize = ACPI_SIZEOF_RESOURCE (ACPI_RESOURCE_IO);
ACPI_FUNCTION_TRACE ("RsIoResource");
/*
* The number of bytes consumed are Constant
*/
*BytesConsumed = 8;
OutputStruct->Id = ACPI_RSTYPE_IO;
/*
* Check Decode
*/
Buffer += 1;
Temp8 = *Buffer;
OutputStruct->Data.Io.IoDecode = Temp8 & 0x01;
/*
* Check MinBase Address
*/
Buffer += 1;
ACPI_MOVE_UNALIGNED16_TO_16 (&Temp16, Buffer);
OutputStruct->Data.Io.MinBaseAddress = Temp16;
/*
* Check MaxBase Address
*/
Buffer += 2;
ACPI_MOVE_UNALIGNED16_TO_16 (&Temp16, Buffer);
OutputStruct->Data.Io.MaxBaseAddress = Temp16;
/*
* Check Base alignment
*/
Buffer += 2;
Temp8 = *Buffer;
OutputStruct->Data.Io.Alignment = Temp8;
/*
* Check RangeLength
*/
Buffer += 1;
Temp8 = *Buffer;
OutputStruct->Data.Io.RangeLength = Temp8;
/*
* Set the Length parameter
*/
OutputStruct->Length = (UINT32) StructSize;
/*
* Return the final size of the structure
*/
*StructureSize = StructSize;
return_ACPI_STATUS (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiRsFixedIoResource
*
* 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
AcpiRsFixedIoResource (
UINT8 *ByteStreamBuffer,
ACPI_SIZE *BytesConsumed,
UINT8 **OutputBuffer,
ACPI_SIZE *StructureSize)
{
UINT8 *Buffer = ByteStreamBuffer;
ACPI_RESOURCE *OutputStruct = (void *) *OutputBuffer;
UINT16 Temp16 = 0;
UINT8 Temp8 = 0;
ACPI_SIZE StructSize = ACPI_SIZEOF_RESOURCE (ACPI_RESOURCE_FIXED_IO);
ACPI_FUNCTION_TRACE ("RsFixedIoResource");
/*
* The number of bytes consumed are Constant
*/
*BytesConsumed = 4;
OutputStruct->Id = ACPI_RSTYPE_FIXED_IO;
/*
* Check Range Base Address
*/
Buffer += 1;
ACPI_MOVE_UNALIGNED16_TO_16 (&Temp16, Buffer);
OutputStruct->Data.FixedIo.BaseAddress = Temp16;
/*
* Check RangeLength
*/
Buffer += 2;
Temp8 = *Buffer;
OutputStruct->Data.FixedIo.RangeLength = Temp8;
/*
* Set the Length parameter
*/
OutputStruct->Length = (UINT32) StructSize;
/*
* Return the final size of the structure
*/
*StructureSize = StructSize;
return_ACPI_STATUS (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiRsIoStream
*
* 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
AcpiRsIoStream (
ACPI_RESOURCE *LinkedList,
UINT8 **OutputBuffer,
ACPI_SIZE *BytesConsumed)
{
UINT8 *Buffer = *OutputBuffer;
UINT16 Temp16 = 0;
UINT8 Temp8 = 0;
ACPI_FUNCTION_TRACE ("RsIoStream");
/*
* The descriptor field is static
*/
*Buffer = 0x47;
Buffer += 1;
/*
* Io Information Byte
*/
Temp8 = (UINT8) (LinkedList->Data.Io.IoDecode & 0x01);
*Buffer = Temp8;
Buffer += 1;
/*
* Set the Range minimum base address
*/
Temp16 = (UINT16) LinkedList->Data.Io.MinBaseAddress;
ACPI_MOVE_UNALIGNED16_TO_16 (Buffer, &Temp16);
Buffer += 2;
/*
* Set the Range maximum base address
*/
Temp16 = (UINT16) LinkedList->Data.Io.MaxBaseAddress;
ACPI_MOVE_UNALIGNED16_TO_16 (Buffer, &Temp16);
Buffer += 2;
/*
* Set the base alignment
*/
Temp8 = (UINT8) LinkedList->Data.Io.Alignment;
*Buffer = Temp8;
Buffer += 1;
/*
* Set the range length
*/
Temp8 = (UINT8) LinkedList->Data.Io.RangeLength;
*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: AcpiRsFixedIoStream
*
* 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
AcpiRsFixedIoStream (
ACPI_RESOURCE *LinkedList,
UINT8 **OutputBuffer,
ACPI_SIZE *BytesConsumed)
{
UINT8 *Buffer = *OutputBuffer;
UINT16 Temp16 = 0;
UINT8 Temp8 = 0;
ACPI_FUNCTION_TRACE ("RsFixedIoStream");
/*
* The descriptor field is static
*/
*Buffer = 0x4B;
Buffer += 1;
/*
* Set the Range base address
*/
Temp16 = (UINT16) LinkedList->Data.FixedIo.BaseAddress;
ACPI_MOVE_UNALIGNED16_TO_16 (Buffer, &Temp16);
Buffer += 2;
/*
* Set the range length
*/
Temp8 = (UINT8) LinkedList->Data.FixedIo.RangeLength;
*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: AcpiRsDmaResource
*
* 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
AcpiRsDmaResource (
UINT8 *ByteStreamBuffer,
ACPI_SIZE *BytesConsumed,
UINT8 **OutputBuffer,
ACPI_SIZE *StructureSize)
{
UINT8 *Buffer = ByteStreamBuffer;
ACPI_RESOURCE *OutputStruct = (void *) *OutputBuffer;
UINT8 Temp8 = 0;
UINT8 Index;
UINT8 i;
ACPI_SIZE StructSize = ACPI_SIZEOF_RESOURCE (ACPI_RESOURCE_DMA);
ACPI_FUNCTION_TRACE ("RsDmaResource");
/*
* The number of bytes consumed are Constant
*/
*BytesConsumed = 3;
OutputStruct->Id = ACPI_RSTYPE_DMA;
/*
* Point to the 8-bits of Byte 1
*/
Buffer += 1;
Temp8 = *Buffer;
/* Decode the DMA channel bits */
for (i = 0, Index = 0; Index < 8; Index++)
{
if ((Temp8 >> Index) & 0x01)
{
OutputStruct->Data.Dma.Channels[i] = Index;
i++;
}
}
/* Zero DMA channels is valid */
OutputStruct->Data.Dma.NumberOfChannels = i;
if (i > 0)
{
/*
* Calculate the structure size based upon the number of interrupts
*/
StructSize += ((ACPI_SIZE) i - 1) * 4;
}
/*
* Point to Byte 2
*/
Buffer += 1;
Temp8 = *Buffer;
/*
* Check for transfer preference (Bits[1:0])
*/
OutputStruct->Data.Dma.Transfer = Temp8 & 0x03;
if (0x03 == OutputStruct->Data.Dma.Transfer)
{
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid DMA.Transfer preference (3)\n"));
return_ACPI_STATUS (AE_BAD_DATA);
}
/*
* Get bus master preference (Bit[2])
*/
OutputStruct->Data.Dma.BusMaster = (Temp8 >> 2) & 0x01;
/*
* Get channel speed support (Bits[6:5])
*/
OutputStruct->Data.Dma.Type = (Temp8 >> 5) & 0x03;
/*
* Set the Length parameter
*/
OutputStruct->Length = (UINT32) StructSize;
/*
* Return the final size of the structure
*/
*StructureSize = StructSize;
return_ACPI_STATUS (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiRsDmaStream
*
* 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
AcpiRsDmaStream (
ACPI_RESOURCE *LinkedList,
UINT8 **OutputBuffer,
ACPI_SIZE *BytesConsumed)
{
UINT8 *Buffer = *OutputBuffer;
UINT16 Temp16 = 0;
UINT8 Temp8 = 0;
UINT8 Index;
ACPI_FUNCTION_TRACE ("RsDmaStream");
/*
* The descriptor field is static
*/
*Buffer = 0x2A;
Buffer += 1;
Temp8 = 0;
/*
* Loop through all of the Channels and set the mask bits
*/
for (Index = 0;
Index < LinkedList->Data.Dma.NumberOfChannels;
Index++)
{
Temp16 = (UINT16) LinkedList->Data.Dma.Channels[Index];
Temp8 |= 0x1 << Temp16;
}
*Buffer = Temp8;
Buffer += 1;
/*
* Set the DMA Info
*/
Temp8 = (UINT8) ((LinkedList->Data.Dma.Type & 0x03) << 5);
Temp8 |= ((LinkedList->Data.Dma.BusMaster & 0x01) << 2);
Temp8 |= (LinkedList->Data.Dma.Transfer & 0x03);
*Buffer = Temp8;
Buffer += 1;
/*
* Return the number of bytes consumed in this operation
*/
*BytesConsumed = ACPI_PTR_DIFF (Buffer, *OutputBuffer);
return_ACPI_STATUS (AE_OK);
}
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