/******************************************************************************* * * Module Name: rsio - IO and DMA resource descriptors * $Revision: 24 $ * ******************************************************************************/ /****************************************************************************** * * 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_16_TO_16 (&Temp16, Buffer); OutputStruct->Data.Io.MinBaseAddress = Temp16; /* * Check MaxBase Address */ Buffer += 2; ACPI_MOVE_16_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_16_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_16_TO_16 (Buffer, &Temp16); Buffer += 2; /* * Set the Range maximum base address */ Temp16 = (UINT16) LinkedList->Data.Io.MaxBaseAddress; ACPI_MOVE_16_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_16_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); }