309 lines
10 KiB
C
309 lines
10 KiB
C
/*******************************************************************************
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*
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* Module Name: rsirq - IRQ resource descriptors
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*
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******************************************************************************/
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/*
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* Copyright (C) 2000 - 2011, 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 __RSIRQ_C__
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#include "acpi.h"
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#include "accommon.h"
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#include "acresrc.h"
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#define _COMPONENT ACPI_RESOURCES
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ACPI_MODULE_NAME ("rsirq")
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/*******************************************************************************
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*
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* AcpiRsGetIrq
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*
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******************************************************************************/
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ACPI_RSCONVERT_INFO AcpiRsGetIrq[8] =
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{
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{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IRQ,
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ACPI_RS_SIZE (ACPI_RESOURCE_IRQ),
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ACPI_RSC_TABLE_SIZE (AcpiRsGetIrq)},
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/* Get the IRQ mask (bytes 1:2) */
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{ACPI_RSC_BITMASK16,ACPI_RS_OFFSET (Data.Irq.Interrupts[0]),
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AML_OFFSET (Irq.IrqMask),
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ACPI_RS_OFFSET (Data.Irq.InterruptCount)},
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/* Set default flags (others are zero) */
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{ACPI_RSC_SET8, ACPI_RS_OFFSET (Data.Irq.Triggering),
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ACPI_EDGE_SENSITIVE,
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1},
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/* Get the descriptor length (2 or 3 for IRQ descriptor) */
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{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Irq.DescriptorLength),
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AML_OFFSET (Irq.DescriptorType),
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0},
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/* All done if no flag byte present in descriptor */
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{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3},
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/* Get flags: Triggering[0], Polarity[3], Sharing[4] */
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Triggering),
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AML_OFFSET (Irq.Flags),
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0},
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Polarity),
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AML_OFFSET (Irq.Flags),
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3},
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Sharable),
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AML_OFFSET (Irq.Flags),
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4}
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};
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/*******************************************************************************
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*
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* AcpiRsSetIrq
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*
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******************************************************************************/
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ACPI_RSCONVERT_INFO AcpiRsSetIrq[13] =
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{
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/* Start with a default descriptor of length 3 */
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{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ,
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sizeof (AML_RESOURCE_IRQ),
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ACPI_RSC_TABLE_SIZE (AcpiRsSetIrq)},
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/* Convert interrupt list to 16-bit IRQ bitmask */
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{ACPI_RSC_BITMASK16,ACPI_RS_OFFSET (Data.Irq.Interrupts[0]),
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AML_OFFSET (Irq.IrqMask),
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ACPI_RS_OFFSET (Data.Irq.InterruptCount)},
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/* Set the flags byte */
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Triggering),
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AML_OFFSET (Irq.Flags),
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0},
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Polarity),
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AML_OFFSET (Irq.Flags),
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3},
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Sharable),
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AML_OFFSET (Irq.Flags),
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4},
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/*
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* All done if the output descriptor length is required to be 3
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* (i.e., optimization to 2 bytes cannot be attempted)
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*/
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{ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
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ACPI_RS_OFFSET(Data.Irq.DescriptorLength),
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3},
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/* Set length to 2 bytes (no flags byte) */
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{ACPI_RSC_LENGTH, 0, 0, sizeof (AML_RESOURCE_IRQ_NOFLAGS)},
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/*
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* All done if the output descriptor length is required to be 2.
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*
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* TBD: Perhaps we should check for error if input flags are not
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* compatible with a 2-byte descriptor.
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*/
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{ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
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ACPI_RS_OFFSET(Data.Irq.DescriptorLength),
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2},
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/* Reset length to 3 bytes (descriptor with flags byte) */
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{ACPI_RSC_LENGTH, 0, 0, sizeof (AML_RESOURCE_IRQ)},
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/*
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* Check if the flags byte is necessary. Not needed if the flags are:
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* ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE
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*/
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{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
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ACPI_RS_OFFSET (Data.Irq.Triggering),
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ACPI_EDGE_SENSITIVE},
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{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
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ACPI_RS_OFFSET (Data.Irq.Polarity),
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ACPI_ACTIVE_HIGH},
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{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
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ACPI_RS_OFFSET (Data.Irq.Sharable),
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ACPI_EXCLUSIVE},
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/* We can optimize to a 2-byte IrqNoFlags() descriptor */
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{ACPI_RSC_LENGTH, 0, 0, sizeof (AML_RESOURCE_IRQ_NOFLAGS)}
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};
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/*******************************************************************************
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*
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* AcpiRsConvertExtIrq
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*
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******************************************************************************/
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ACPI_RSCONVERT_INFO AcpiRsConvertExtIrq[9] =
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{
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{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ,
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ACPI_RS_SIZE (ACPI_RESOURCE_EXTENDED_IRQ),
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ACPI_RSC_TABLE_SIZE (AcpiRsConvertExtIrq)},
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{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ,
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sizeof (AML_RESOURCE_EXTENDED_IRQ),
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0},
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/* Flag bits */
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.ProducerConsumer),
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AML_OFFSET (ExtendedIrq.Flags),
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0},
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Triggering),
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AML_OFFSET (ExtendedIrq.Flags),
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1},
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Polarity),
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AML_OFFSET (ExtendedIrq.Flags),
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2},
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Sharable),
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AML_OFFSET (ExtendedIrq.Flags),
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3},
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/* IRQ Table length (Byte4) */
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{ACPI_RSC_COUNT, ACPI_RS_OFFSET (Data.ExtendedIrq.InterruptCount),
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AML_OFFSET (ExtendedIrq.InterruptCount),
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sizeof (UINT32)},
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/* Copy every IRQ in the table, each is 32 bits */
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{ACPI_RSC_MOVE32, ACPI_RS_OFFSET (Data.ExtendedIrq.Interrupts[0]),
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AML_OFFSET (ExtendedIrq.Interrupts[0]),
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0},
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/* Optional ResourceSource (Index and String) */
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{ACPI_RSC_SOURCEX, ACPI_RS_OFFSET (Data.ExtendedIrq.ResourceSource),
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ACPI_RS_OFFSET (Data.ExtendedIrq.Interrupts[0]),
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sizeof (AML_RESOURCE_EXTENDED_IRQ)}
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};
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/*******************************************************************************
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*
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* AcpiRsConvertDma
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*
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******************************************************************************/
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ACPI_RSCONVERT_INFO AcpiRsConvertDma[6] =
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{
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{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_DMA,
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ACPI_RS_SIZE (ACPI_RESOURCE_DMA),
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ACPI_RSC_TABLE_SIZE (AcpiRsConvertDma)},
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{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA,
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sizeof (AML_RESOURCE_DMA),
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0},
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/* Flags: transfer preference, bus mastering, channel speed */
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{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Dma.Transfer),
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AML_OFFSET (Dma.Flags),
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0},
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Dma.BusMaster),
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AML_OFFSET (Dma.Flags),
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2},
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{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Dma.Type),
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AML_OFFSET (Dma.Flags),
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5},
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/* DMA channel mask bits */
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{ACPI_RSC_BITMASK, ACPI_RS_OFFSET (Data.Dma.Channels[0]),
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AML_OFFSET (Dma.DmaChannelMask),
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ACPI_RS_OFFSET (Data.Dma.ChannelCount)}
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};
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/*******************************************************************************
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*
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* AcpiRsConvertFixedDma
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*
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******************************************************************************/
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ACPI_RSCONVERT_INFO AcpiRsConvertFixedDma[4] =
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{
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{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_DMA,
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ACPI_RS_SIZE (ACPI_RESOURCE_FIXED_DMA),
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ACPI_RSC_TABLE_SIZE (AcpiRsConvertFixedDma)},
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{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_DMA,
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sizeof (AML_RESOURCE_FIXED_DMA),
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0},
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/*
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* These fields are contiguous in both the source and destination:
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* RequestLines
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* Channels
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*/
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{ACPI_RSC_MOVE16, ACPI_RS_OFFSET (Data.FixedDma.RequestLines),
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AML_OFFSET (FixedDma.RequestLines),
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2},
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{ACPI_RSC_MOVE8, ACPI_RS_OFFSET (Data.FixedDma.Width),
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AML_OFFSET (FixedDma.Width),
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1},
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};
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