862 lines
25 KiB
C
862 lines
25 KiB
C
/*******************************************************************************
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*
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* Module Name: rsutils - Utilities for the resource manager
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*
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******************************************************************************/
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/*
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* Copyright (C) 2000 - 2012, Intel Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#define __RSUTILS_C__
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#include <contrib/dev/acpica/include/acpi.h>
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#include <contrib/dev/acpica/include/accommon.h>
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#include <contrib/dev/acpica/include/acnamesp.h>
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#include <contrib/dev/acpica/include/acresrc.h>
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#define _COMPONENT ACPI_RESOURCES
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ACPI_MODULE_NAME ("rsutils")
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsDecodeBitmask
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*
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* PARAMETERS: Mask - Bitmask to decode
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* List - Where the converted list is returned
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*
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* RETURN: Count of bits set (length of list)
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*
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* DESCRIPTION: Convert a bit mask into a list of values
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*
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******************************************************************************/
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UINT8
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AcpiRsDecodeBitmask (
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UINT16 Mask,
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UINT8 *List)
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{
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UINT8 i;
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UINT8 BitCount;
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ACPI_FUNCTION_ENTRY ();
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/* Decode the mask bits */
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for (i = 0, BitCount = 0; Mask; i++)
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{
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if (Mask & 0x0001)
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{
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List[BitCount] = i;
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BitCount++;
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}
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Mask >>= 1;
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}
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return (BitCount);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsEncodeBitmask
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*
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* PARAMETERS: List - List of values to encode
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* Count - Length of list
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*
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* RETURN: Encoded bitmask
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*
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* DESCRIPTION: Convert a list of values to an encoded bitmask
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*
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******************************************************************************/
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UINT16
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AcpiRsEncodeBitmask (
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UINT8 *List,
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UINT8 Count)
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{
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UINT32 i;
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UINT16 Mask;
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ACPI_FUNCTION_ENTRY ();
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/* Encode the list into a single bitmask */
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for (i = 0, Mask = 0; i < Count; i++)
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{
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Mask |= (0x1 << List[i]);
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}
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return (Mask);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsMoveData
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*
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* PARAMETERS: Destination - Pointer to the destination descriptor
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* Source - Pointer to the source descriptor
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* ItemCount - How many items to move
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* MoveType - Byte width
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*
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* RETURN: None
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*
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* DESCRIPTION: Move multiple data items from one descriptor to another. Handles
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* alignment issues and endian issues if necessary, as configured
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* via the ACPI_MOVE_* macros. (This is why a memcpy is not used)
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*
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******************************************************************************/
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void
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AcpiRsMoveData (
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void *Destination,
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void *Source,
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UINT16 ItemCount,
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UINT8 MoveType)
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{
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UINT32 i;
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ACPI_FUNCTION_ENTRY ();
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/* One move per item */
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for (i = 0; i < ItemCount; i++)
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{
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switch (MoveType)
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{
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/*
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* For the 8-bit case, we can perform the move all at once
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* since there are no alignment or endian issues
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*/
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case ACPI_RSC_MOVE8:
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case ACPI_RSC_MOVE_GPIO_RES:
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case ACPI_RSC_MOVE_SERIAL_VEN:
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case ACPI_RSC_MOVE_SERIAL_RES:
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ACPI_MEMCPY (Destination, Source, ItemCount);
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return;
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/*
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* 16-, 32-, and 64-bit cases must use the move macros that perform
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* endian conversion and/or accomodate hardware that cannot perform
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* misaligned memory transfers
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*/
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case ACPI_RSC_MOVE16:
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case ACPI_RSC_MOVE_GPIO_PIN:
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ACPI_MOVE_16_TO_16 (&ACPI_CAST_PTR (UINT16, Destination)[i],
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&ACPI_CAST_PTR (UINT16, Source)[i]);
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break;
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case ACPI_RSC_MOVE32:
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ACPI_MOVE_32_TO_32 (&ACPI_CAST_PTR (UINT32, Destination)[i],
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&ACPI_CAST_PTR (UINT32, Source)[i]);
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break;
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case ACPI_RSC_MOVE64:
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ACPI_MOVE_64_TO_64 (&ACPI_CAST_PTR (UINT64, Destination)[i],
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&ACPI_CAST_PTR (UINT64, Source)[i]);
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break;
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default:
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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: AcpiRsSetResourceLength
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*
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* PARAMETERS: TotalLength - Length of the AML descriptor, including
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* the header and length fields.
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* Aml - Pointer to the raw AML descriptor
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*
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* RETURN: None
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*
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* DESCRIPTION: Set the ResourceLength field of an AML
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* resource descriptor, both Large and Small descriptors are
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* supported automatically. Note: Descriptor Type field must
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* be valid.
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*
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******************************************************************************/
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void
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AcpiRsSetResourceLength (
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ACPI_RSDESC_SIZE TotalLength,
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AML_RESOURCE *Aml)
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{
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ACPI_RS_LENGTH ResourceLength;
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ACPI_FUNCTION_ENTRY ();
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/* Length is the total descriptor length minus the header length */
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ResourceLength = (ACPI_RS_LENGTH)
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(TotalLength - AcpiUtGetResourceHeaderLength (Aml));
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/* Length is stored differently for large and small descriptors */
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if (Aml->SmallHeader.DescriptorType & ACPI_RESOURCE_NAME_LARGE)
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{
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/* Large descriptor -- bytes 1-2 contain the 16-bit length */
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ACPI_MOVE_16_TO_16 (&Aml->LargeHeader.ResourceLength, &ResourceLength);
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}
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else
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{
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/* Small descriptor -- bits 2:0 of byte 0 contain the length */
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Aml->SmallHeader.DescriptorType = (UINT8)
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/* Clear any existing length, preserving descriptor type bits */
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((Aml->SmallHeader.DescriptorType & ~ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK)
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| ResourceLength);
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsSetResourceHeader
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*
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* PARAMETERS: DescriptorType - Byte to be inserted as the type
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* TotalLength - Length of the AML descriptor, including
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* the header and length fields.
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* Aml - Pointer to the raw AML descriptor
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*
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* RETURN: None
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*
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* DESCRIPTION: Set the DescriptorType and ResourceLength fields of an AML
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* resource descriptor, both Large and Small descriptors are
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* supported automatically
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*
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******************************************************************************/
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void
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AcpiRsSetResourceHeader (
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UINT8 DescriptorType,
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ACPI_RSDESC_SIZE TotalLength,
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AML_RESOURCE *Aml)
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{
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ACPI_FUNCTION_ENTRY ();
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/* Set the Resource Type */
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Aml->SmallHeader.DescriptorType = DescriptorType;
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/* Set the Resource Length */
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AcpiRsSetResourceLength (TotalLength, Aml);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsStrcpy
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*
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* PARAMETERS: Destination - Pointer to the destination string
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* Source - Pointer to the source string
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*
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* RETURN: String length, including NULL terminator
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*
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* DESCRIPTION: Local string copy that returns the string length, saving a
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* strcpy followed by a strlen.
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*
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******************************************************************************/
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static UINT16
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AcpiRsStrcpy (
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char *Destination,
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char *Source)
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{
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UINT16 i;
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ACPI_FUNCTION_ENTRY ();
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for (i = 0; Source[i]; i++)
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{
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Destination[i] = Source[i];
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}
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Destination[i] = 0;
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/* Return string length including the NULL terminator */
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return ((UINT16) (i + 1));
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsGetResourceSource
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*
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* PARAMETERS: ResourceLength - Length field of the descriptor
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* MinimumLength - Minimum length of the descriptor (minus
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* any optional fields)
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* ResourceSource - Where the ResourceSource is returned
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* Aml - Pointer to the raw AML descriptor
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* StringPtr - (optional) where to store the actual
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* ResourceSource string
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*
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* RETURN: Length of the string plus NULL terminator, rounded up to native
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* word boundary
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*
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* DESCRIPTION: Copy the optional ResourceSource data from a raw AML descriptor
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* to an internal resource descriptor
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*
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******************************************************************************/
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ACPI_RS_LENGTH
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AcpiRsGetResourceSource (
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ACPI_RS_LENGTH ResourceLength,
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ACPI_RS_LENGTH MinimumLength,
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ACPI_RESOURCE_SOURCE *ResourceSource,
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AML_RESOURCE *Aml,
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char *StringPtr)
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{
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ACPI_RSDESC_SIZE TotalLength;
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UINT8 *AmlResourceSource;
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ACPI_FUNCTION_ENTRY ();
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TotalLength = ResourceLength + sizeof (AML_RESOURCE_LARGE_HEADER);
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AmlResourceSource = ACPI_ADD_PTR (UINT8, Aml, MinimumLength);
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/*
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* ResourceSource is present if the length of the descriptor is longer than
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* the minimum length.
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*
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* Note: Some resource descriptors will have an additional null, so
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* we add 1 to the minimum length.
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*/
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if (TotalLength > (ACPI_RSDESC_SIZE) (MinimumLength + 1))
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{
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/* Get the ResourceSourceIndex */
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ResourceSource->Index = AmlResourceSource[0];
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ResourceSource->StringPtr = StringPtr;
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if (!StringPtr)
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{
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/*
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* String destination pointer is not specified; Set the String
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* pointer to the end of the current ResourceSource structure.
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*/
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ResourceSource->StringPtr = ACPI_ADD_PTR (char, ResourceSource,
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sizeof (ACPI_RESOURCE_SOURCE));
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}
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/*
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* In order for the Resource length to be a multiple of the native
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* word, calculate the length of the string (+1 for NULL terminator)
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* and expand to the next word multiple.
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*
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* Zero the entire area of the buffer.
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*/
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TotalLength = (UINT32) ACPI_STRLEN (
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ACPI_CAST_PTR (char, &AmlResourceSource[1])) + 1;
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TotalLength = (UINT32) ACPI_ROUND_UP_TO_NATIVE_WORD (TotalLength);
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ACPI_MEMSET (ResourceSource->StringPtr, 0, TotalLength);
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/* Copy the ResourceSource string to the destination */
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ResourceSource->StringLength = AcpiRsStrcpy (ResourceSource->StringPtr,
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ACPI_CAST_PTR (char, &AmlResourceSource[1]));
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return ((ACPI_RS_LENGTH) TotalLength);
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}
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/* ResourceSource is not present */
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ResourceSource->Index = 0;
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ResourceSource->StringLength = 0;
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ResourceSource->StringPtr = NULL;
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return (0);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsSetResourceSource
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*
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* PARAMETERS: Aml - Pointer to the raw AML descriptor
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* MinimumLength - Minimum length of the descriptor (minus
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* any optional fields)
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* ResourceSource - Internal ResourceSource
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*
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* RETURN: Total length of the AML descriptor
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*
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* DESCRIPTION: Convert an optional ResourceSource from internal format to a
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* raw AML resource descriptor
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*
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******************************************************************************/
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ACPI_RSDESC_SIZE
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AcpiRsSetResourceSource (
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AML_RESOURCE *Aml,
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ACPI_RS_LENGTH MinimumLength,
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ACPI_RESOURCE_SOURCE *ResourceSource)
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{
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UINT8 *AmlResourceSource;
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ACPI_RSDESC_SIZE DescriptorLength;
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ACPI_FUNCTION_ENTRY ();
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DescriptorLength = MinimumLength;
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/* Non-zero string length indicates presence of a ResourceSource */
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if (ResourceSource->StringLength)
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{
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/* Point to the end of the AML descriptor */
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AmlResourceSource = ACPI_ADD_PTR (UINT8, Aml, MinimumLength);
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/* Copy the ResourceSourceIndex */
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AmlResourceSource[0] = (UINT8) ResourceSource->Index;
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/* Copy the ResourceSource string */
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ACPI_STRCPY (ACPI_CAST_PTR (char, &AmlResourceSource[1]),
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ResourceSource->StringPtr);
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/*
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* Add the length of the string (+ 1 for null terminator) to the
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* final descriptor length
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*/
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DescriptorLength += ((ACPI_RSDESC_SIZE) ResourceSource->StringLength + 1);
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}
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/* Return the new total length of the AML descriptor */
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return (DescriptorLength);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsGetPrtMethodData
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*
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* PARAMETERS: Node - Device node
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* RetBuffer - Pointer to a buffer structure for the
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* results
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*
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* RETURN: Status
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*
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* DESCRIPTION: This function is called to get the _PRT value of an object
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* contained in an object specified by the handle passed in
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*
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* If the function fails an appropriate status will be returned
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* and the contents of the callers buffer is undefined.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiRsGetPrtMethodData (
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ACPI_NAMESPACE_NODE *Node,
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ACPI_BUFFER *RetBuffer)
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{
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ACPI_OPERAND_OBJECT *ObjDesc;
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ACPI_STATUS Status;
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ACPI_FUNCTION_TRACE (RsGetPrtMethodData);
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/* Parameters guaranteed valid by caller */
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/* Execute the method, no parameters */
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Status = AcpiUtEvaluateObject (Node, METHOD_NAME__PRT,
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ACPI_BTYPE_PACKAGE, &ObjDesc);
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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/*
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* Create a resource linked list from the byte stream buffer that comes
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* back from the _CRS method execution.
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*/
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Status = AcpiRsCreatePciRoutingTable (ObjDesc, RetBuffer);
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/* On exit, we must delete the object returned by EvaluateObject */
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AcpiUtRemoveReference (ObjDesc);
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return_ACPI_STATUS (Status);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsGetCrsMethodData
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*
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* PARAMETERS: Node - Device node
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* RetBuffer - Pointer to a buffer structure for the
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* results
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*
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* RETURN: Status
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*
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* DESCRIPTION: This function is called to get the _CRS value of an object
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* contained in an object specified by the handle passed in
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*
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* If the function fails an appropriate status will be returned
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* and the contents of the callers buffer is undefined.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiRsGetCrsMethodData (
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ACPI_NAMESPACE_NODE *Node,
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ACPI_BUFFER *RetBuffer)
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{
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ACPI_OPERAND_OBJECT *ObjDesc;
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ACPI_STATUS Status;
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ACPI_FUNCTION_TRACE (RsGetCrsMethodData);
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/* Parameters guaranteed valid by caller */
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/* Execute the method, no parameters */
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Status = AcpiUtEvaluateObject (Node, METHOD_NAME__CRS,
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ACPI_BTYPE_BUFFER, &ObjDesc);
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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/*
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* Make the call to create a resource linked list from the
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* byte stream buffer that comes back from the _CRS method
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* execution.
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*/
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Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer);
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/* On exit, we must delete the object returned by evaluateObject */
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AcpiUtRemoveReference (ObjDesc);
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return_ACPI_STATUS (Status);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsGetPrsMethodData
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*
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|
* PARAMETERS: Node - Device node
|
|
* RetBuffer - Pointer to a buffer structure for the
|
|
* results
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: This function is called to get the _PRS value of an object
|
|
* contained in an object specified by the handle passed in
|
|
*
|
|
* If the function fails an appropriate status will be returned
|
|
* and the contents of the callers buffer is undefined.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRsGetPrsMethodData (
|
|
ACPI_NAMESPACE_NODE *Node,
|
|
ACPI_BUFFER *RetBuffer)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (RsGetPrsMethodData);
|
|
|
|
|
|
/* Parameters guaranteed valid by caller */
|
|
|
|
/* Execute the method, no parameters */
|
|
|
|
Status = AcpiUtEvaluateObject (Node, METHOD_NAME__PRS,
|
|
ACPI_BTYPE_BUFFER, &ObjDesc);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/*
|
|
* Make the call to create a resource linked list from the
|
|
* byte stream buffer that comes back from the _CRS method
|
|
* execution.
|
|
*/
|
|
Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer);
|
|
|
|
/* On exit, we must delete the object returned by evaluateObject */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsGetAeiMethodData
|
|
*
|
|
* PARAMETERS: Node - Device node
|
|
* RetBuffer - Pointer to a buffer structure for the
|
|
* results
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: This function is called to get the _AEI value of an object
|
|
* contained in an object specified by the handle passed in
|
|
*
|
|
* If the function fails an appropriate status will be returned
|
|
* and the contents of the callers buffer is undefined.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRsGetAeiMethodData (
|
|
ACPI_NAMESPACE_NODE *Node,
|
|
ACPI_BUFFER *RetBuffer)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (RsGetAeiMethodData);
|
|
|
|
|
|
/* Parameters guaranteed valid by caller */
|
|
|
|
/* Execute the method, no parameters */
|
|
|
|
Status = AcpiUtEvaluateObject (Node, METHOD_NAME__AEI,
|
|
ACPI_BTYPE_BUFFER, &ObjDesc);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/*
|
|
* Make the call to create a resource linked list from the
|
|
* byte stream buffer that comes back from the _CRS method
|
|
* execution.
|
|
*/
|
|
Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer);
|
|
|
|
/* On exit, we must delete the object returned by evaluateObject */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsGetMethodData
|
|
*
|
|
* PARAMETERS: Handle - Handle to the containing object
|
|
* Path - Path to method, relative to Handle
|
|
* RetBuffer - Pointer to a buffer structure for the
|
|
* results
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: This function is called to get the _CRS or _PRS value of an
|
|
* object contained in an object specified by the handle passed in
|
|
*
|
|
* If the function fails an appropriate status will be returned
|
|
* and the contents of the callers buffer is undefined.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRsGetMethodData (
|
|
ACPI_HANDLE Handle,
|
|
char *Path,
|
|
ACPI_BUFFER *RetBuffer)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (RsGetMethodData);
|
|
|
|
|
|
/* Parameters guaranteed valid by caller */
|
|
|
|
/* Execute the method, no parameters */
|
|
|
|
Status = AcpiUtEvaluateObject (Handle, Path, ACPI_BTYPE_BUFFER, &ObjDesc);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/*
|
|
* Make the call to create a resource linked list from the
|
|
* byte stream buffer that comes back from the method
|
|
* execution.
|
|
*/
|
|
Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer);
|
|
|
|
/* On exit, we must delete the object returned by EvaluateObject */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsSetSrsMethodData
|
|
*
|
|
* PARAMETERS: Node - Device node
|
|
* InBuffer - Pointer to a buffer structure of the
|
|
* parameter
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: This function is called to set the _SRS of an object contained
|
|
* in an object specified by the handle passed in
|
|
*
|
|
* If the function fails an appropriate status will be returned
|
|
* and the contents of the callers buffer is undefined.
|
|
*
|
|
* Note: Parameters guaranteed valid by caller
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRsSetSrsMethodData (
|
|
ACPI_NAMESPACE_NODE *Node,
|
|
ACPI_BUFFER *InBuffer)
|
|
{
|
|
ACPI_EVALUATE_INFO *Info;
|
|
ACPI_OPERAND_OBJECT *Args[2];
|
|
ACPI_STATUS Status;
|
|
ACPI_BUFFER Buffer;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (RsSetSrsMethodData);
|
|
|
|
|
|
/* Allocate and initialize the evaluation information block */
|
|
|
|
Info = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO));
|
|
if (!Info)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
Info->PrefixNode = Node;
|
|
Info->Pathname = METHOD_NAME__SRS;
|
|
Info->Parameters = Args;
|
|
Info->Flags = ACPI_IGNORE_RETURN_VALUE;
|
|
|
|
/*
|
|
* The InBuffer parameter will point to a linked list of
|
|
* resource parameters. It needs to be formatted into a
|
|
* byte stream to be sent in as an input parameter to _SRS
|
|
*
|
|
* Convert the linked list into a byte stream
|
|
*/
|
|
Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
|
|
Status = AcpiRsCreateAmlResources (InBuffer->Pointer, &Buffer);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
goto Cleanup;
|
|
}
|
|
|
|
/* Create and initialize the method parameter object */
|
|
|
|
Args[0] = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER);
|
|
if (!Args[0])
|
|
{
|
|
/*
|
|
* Must free the buffer allocated above (otherwise it is freed
|
|
* later)
|
|
*/
|
|
ACPI_FREE (Buffer.Pointer);
|
|
Status = AE_NO_MEMORY;
|
|
goto Cleanup;
|
|
}
|
|
|
|
Args[0]->Buffer.Length = (UINT32) Buffer.Length;
|
|
Args[0]->Buffer.Pointer = Buffer.Pointer;
|
|
Args[0]->Common.Flags = AOPOBJ_DATA_VALID;
|
|
Args[1] = NULL;
|
|
|
|
/* Execute the method, no return value is expected */
|
|
|
|
Status = AcpiNsEvaluate (Info);
|
|
|
|
/* Clean up and return the status from AcpiNsEvaluate */
|
|
|
|
AcpiUtRemoveReference (Args[0]);
|
|
|
|
Cleanup:
|
|
ACPI_FREE (Info);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|