FreeBSD/Linux Kernel Cross Reference
sys/contrib/dev/acpica/components/resources/rsirq.c

     /*******************************************************************************
      *
      * Module Name: rsirq - IRQ resource descriptors
      *
      ******************************************************************************/
     
     /******************************************************************************
      *
      * 1. Copyright Notice
     *
     * Some or all of this work - Copyright (c) 1999 - 2022, 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.
    *
    *****************************************************************************
    *
    * Alternatively, you may choose to be licensed under the terms of the
    * following license:
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions
    * are met:
    * 1. Redistributions of source code must retain the above copyright
    *    notice, this list of conditions, and the following disclaimer,
    *    without modification.
    * 2. Redistributions in binary form must reproduce at minimum a disclaimer
    *    substantially similar to the "NO WARRANTY" disclaimer below
    *    ("Disclaimer") and any redistribution must be conditioned upon
    *    including a substantially similar Disclaimer requirement for further
    *    binary redistribution.
    * 3. Neither the names of the above-listed copyright holders nor the names
    *    of any contributors may be used to endorse or promote products derived
    *    from this software without specific prior written permission.
    *
    * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    *
    * Alternatively, you may choose to be licensed under the terms of the
    * GNU General Public License ("GPL") version 2 as published by the Free
    * Software Foundation.
    *
    *****************************************************************************/
   
   #include <contrib/dev/acpica/include/acpi.h>
   #include <contrib/dev/acpica/include/accommon.h>
   #include <contrib/dev/acpica/include/acresrc.h>
   
   #define _COMPONENT          ACPI_RESOURCES
           ACPI_MODULE_NAME    ("rsirq")
   
   
   /*******************************************************************************
    *
    * AcpiRsGetIrq
    *
    ******************************************************************************/
   
   ACPI_RSCONVERT_INFO     AcpiRsGetIrq[9] =
   {
       {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_IRQ,
                           ACPI_RS_SIZE (ACPI_RESOURCE_IRQ),
                           ACPI_RSC_TABLE_SIZE (AcpiRsGetIrq)},
   
       /* Get the IRQ mask (bytes 1:2) */
   
       {ACPI_RSC_BITMASK16,ACPI_RS_OFFSET (Data.Irq.Interrupts[0]),
                           AML_OFFSET (Irq.IrqMask),
                           ACPI_RS_OFFSET (Data.Irq.InterruptCount)},
   
       /* Set default flags (others are zero) */
   
       {ACPI_RSC_SET8,     ACPI_RS_OFFSET (Data.Irq.Triggering),
                           ACPI_EDGE_SENSITIVE,
                           1},
   
       /* Get the descriptor length (2 or 3 for IRQ descriptor) */
   
       {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Irq.DescriptorLength),
                           AML_OFFSET (Irq.DescriptorType),
                           0},
   
       /* All done if no flag byte present in descriptor */
   
       {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_AML_LENGTH, 0, 3},
   
       /* Get flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */
   
       {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Triggering),
                           AML_OFFSET (Irq.Flags),
                           0},
   
       {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Polarity),
                           AML_OFFSET (Irq.Flags),
                           3},
   
       {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Shareable),
                           AML_OFFSET (Irq.Flags),
                           4},
   
       {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.WakeCapable),
                           AML_OFFSET (Irq.Flags),
                           5}
   };
   
   
   /*******************************************************************************
    *
    * AcpiRsSetIrq
    *
    ******************************************************************************/
   
   ACPI_RSCONVERT_INFO     AcpiRsSetIrq[14] =
   {
       /* Start with a default descriptor of length 3 */
   
       {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_IRQ,
                           sizeof (AML_RESOURCE_IRQ),
                           ACPI_RSC_TABLE_SIZE (AcpiRsSetIrq)},
   
       /* Convert interrupt list to 16-bit IRQ bitmask */
   
       {ACPI_RSC_BITMASK16,ACPI_RS_OFFSET (Data.Irq.Interrupts[0]),
                           AML_OFFSET (Irq.IrqMask),
                           ACPI_RS_OFFSET (Data.Irq.InterruptCount)},
   
       /* Set flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */
   
       {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Triggering),
                           AML_OFFSET (Irq.Flags),
                           0},
   
       {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Polarity),
                           AML_OFFSET (Irq.Flags),
                           3},
   
       {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Shareable),
                           AML_OFFSET (Irq.Flags),
                           4},
   
       {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.WakeCapable),
                           AML_OFFSET (Irq.Flags),
                           5},
   
       /*
        * All done if the output descriptor length is required to be 3
        * (i.e., optimization to 2 bytes cannot be attempted)
        */
       {ACPI_RSC_EXIT_EQ,  ACPI_RSC_COMPARE_VALUE,
                           ACPI_RS_OFFSET(Data.Irq.DescriptorLength),
                           3},
   
       /* Set length to 2 bytes (no flags byte) */
   
       {ACPI_RSC_LENGTH,   0, 0, sizeof (AML_RESOURCE_IRQ_NOFLAGS)},
   
       /*
        * All done if the output descriptor length is required to be 2.
        *
        * TBD: Perhaps we should check for error if input flags are not
        * compatible with a 2-byte descriptor.
        */
       {ACPI_RSC_EXIT_EQ,  ACPI_RSC_COMPARE_VALUE,
                           ACPI_RS_OFFSET(Data.Irq.DescriptorLength),
                           2},
   
       /* Reset length to 3 bytes (descriptor with flags byte) */
   
       {ACPI_RSC_LENGTH,   0, 0, sizeof (AML_RESOURCE_IRQ)},
   
       /*
        * Check if the flags byte is necessary. Not needed if the flags are:
        * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE
        */
       {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_VALUE,
                           ACPI_RS_OFFSET (Data.Irq.Triggering),
                           ACPI_EDGE_SENSITIVE},
   
       {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_VALUE,
                           ACPI_RS_OFFSET (Data.Irq.Polarity),
                           ACPI_ACTIVE_HIGH},
   
       {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_VALUE,
                           ACPI_RS_OFFSET (Data.Irq.Shareable),
                           ACPI_EXCLUSIVE},
   
       /* We can optimize to a 2-byte IrqNoFlags() descriptor */
   
       {ACPI_RSC_LENGTH,   0, 0, sizeof (AML_RESOURCE_IRQ_NOFLAGS)}
   };
   
   
   /*******************************************************************************
    *
    * AcpiRsConvertExtIrq
    *
    ******************************************************************************/
   
   ACPI_RSCONVERT_INFO     AcpiRsConvertExtIrq[10] =
   {
       {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_EXTENDED_IRQ,
                           ACPI_RS_SIZE (ACPI_RESOURCE_EXTENDED_IRQ),
                           ACPI_RSC_TABLE_SIZE (AcpiRsConvertExtIrq)},
   
       {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_EXTENDED_IRQ,
                           sizeof (AML_RESOURCE_EXTENDED_IRQ),
                           0},
   
       /*
        * Flags: Producer/Consumer[0], Triggering[1], Polarity[2],
        *        Sharing[3], Wake[4]
        */
       {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.ProducerConsumer),
                           AML_OFFSET (ExtendedIrq.Flags),
                           0},
   
       {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Triggering),
                           AML_OFFSET (ExtendedIrq.Flags),
                           1},
   
       {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Polarity),
                           AML_OFFSET (ExtendedIrq.Flags),
                           2},
   
       {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Shareable),
                           AML_OFFSET (ExtendedIrq.Flags),
                           3},
   
       {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.WakeCapable),
                           AML_OFFSET (ExtendedIrq.Flags),
                           4},
   
       /* IRQ Table length (Byte4) */
   
       {ACPI_RSC_COUNT,    ACPI_RS_OFFSET (Data.ExtendedIrq.InterruptCount),
                           AML_OFFSET (ExtendedIrq.InterruptCount),
                           sizeof (UINT32)},
   
       /* Copy every IRQ in the table, each is 32 bits */
   
       {ACPI_RSC_MOVE32,   ACPI_RS_OFFSET (Data.ExtendedIrq.Interrupts[0]),
                           AML_OFFSET (ExtendedIrq.Interrupts[0]),
                           0},
   
       /* Optional ResourceSource (Index and String) */
   
       {ACPI_RSC_SOURCEX,  ACPI_RS_OFFSET (Data.ExtendedIrq.ResourceSource),
                           ACPI_RS_OFFSET (Data.ExtendedIrq.Interrupts[0]),
                           sizeof (AML_RESOURCE_EXTENDED_IRQ)}
   };
   
   
   /*******************************************************************************
    *
    * AcpiRsConvertDma
    *
    ******************************************************************************/
   
   ACPI_RSCONVERT_INFO     AcpiRsConvertDma[6] =
   {
       {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_DMA,
                           ACPI_RS_SIZE (ACPI_RESOURCE_DMA),
                           ACPI_RSC_TABLE_SIZE (AcpiRsConvertDma)},
   
       {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_DMA,
                           sizeof (AML_RESOURCE_DMA),
                           0},
   
       /* Flags: transfer preference, bus mastering, channel speed */
   
       {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Dma.Transfer),
                           AML_OFFSET (Dma.Flags),
                           0},
   
       {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Dma.BusMaster),
                           AML_OFFSET (Dma.Flags),
                           2},
   
       {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Dma.Type),
                           AML_OFFSET (Dma.Flags),
                           5},
   
       /* DMA channel mask bits */
   
       {ACPI_RSC_BITMASK,  ACPI_RS_OFFSET (Data.Dma.Channels[0]),
                           AML_OFFSET (Dma.DmaChannelMask),
                           ACPI_RS_OFFSET (Data.Dma.ChannelCount)}
   };
   
   
   /*******************************************************************************
    *
    * AcpiRsConvertFixedDma
    *
    ******************************************************************************/
   
   ACPI_RSCONVERT_INFO     AcpiRsConvertFixedDma[4] =
   {
       {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_FIXED_DMA,
                           ACPI_RS_SIZE (ACPI_RESOURCE_FIXED_DMA),
                           ACPI_RSC_TABLE_SIZE (AcpiRsConvertFixedDma)},
   
       {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_FIXED_DMA,
                           sizeof (AML_RESOURCE_FIXED_DMA),
                           0},
   
       /*
        * These fields are contiguous in both the source and destination:
        * RequestLines
        * Channels
        */
       {ACPI_RSC_MOVE16,   ACPI_RS_OFFSET (Data.FixedDma.RequestLines),
                           AML_OFFSET (FixedDma.RequestLines),
                           2},
   
       {ACPI_RSC_MOVE8,    ACPI_RS_OFFSET (Data.FixedDma.Width),
                           AML_OFFSET (FixedDma.Width),
                           1},
   };

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