xref: /freebsd-10.2-release/sys/contrib/dev/acpica/compiler/aslrestype1.c

/******************************************************************************
 *
 * Module Name: aslrestype1 - Miscellaneous small resource descriptors
 *
 *****************************************************************************/

/*
 * Copyright (C) 2000 - 2011, Intel Corp.
 * All rights reserved.
 *
 * 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.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * NO WARRANTY
 * 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 MERCHANTIBILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
 */


#include <contrib/dev/acpica/compiler/aslcompiler.h>
#include "aslcompiler.y.h"

#define _COMPONENT          ACPI_COMPILER
        ACPI_MODULE_NAME    ("aslrestype1")

/*
 * This module contains miscellaneous small resource descriptors:
 *
 * EndTag
 * EndDependentFn
 * Memory24
 * Memory32
 * Memory32Fixed
 * StartDependentFn
 * StartDependentFnNoPri
 * VendorShort
 */

/*******************************************************************************
 *
 * FUNCTION:    RsDoEndTagDescriptor
 *
 * PARAMETERS:  Op                  - Parent resource descriptor parse node
 *              CurrentByteOffset   - Offset into the resource template AML
 *                                    buffer (to track references to the desc)
 *
 * RETURN:      Completed resource node
 *
 * DESCRIPTION: Construct a short "EndDependentFn" descriptor
 *
 ******************************************************************************/

ASL_RESOURCE_NODE *
RsDoEndTagDescriptor (
    ACPI_PARSE_OBJECT       *Op,
    UINT32                  CurrentByteOffset)
{
    AML_RESOURCE            *Descriptor;
    ASL_RESOURCE_NODE       *Rnode;


    Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_END_TAG));

    Descriptor = Rnode->Buffer;
    Descriptor->EndTag.DescriptorType = ACPI_RESOURCE_NAME_END_TAG |
                                        ASL_RDESC_END_TAG_SIZE;
    Descriptor->EndTag.Checksum = 0;

    return (Rnode);
}


/*******************************************************************************
 *
 * FUNCTION:    RsDoEndDependentDescriptor
 *
 * PARAMETERS:  Op                  - Parent resource descriptor parse node
 *              CurrentByteOffset   - Offset into the resource template AML
 *                                    buffer (to track references to the desc)
 *
 * RETURN:      Completed resource node
 *
 * DESCRIPTION: Construct a short "EndDependentFn" descriptor
 *
 ******************************************************************************/

ASL_RESOURCE_NODE *
RsDoEndDependentDescriptor (
    ACPI_PARSE_OBJECT       *Op,
    UINT32                  CurrentByteOffset)
{
    AML_RESOURCE            *Descriptor;
    ASL_RESOURCE_NODE       *Rnode;


    Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_END_DEPENDENT));

    Descriptor = Rnode->Buffer;
    Descriptor->EndDpf.DescriptorType  = ACPI_RESOURCE_NAME_END_DEPENDENT |
                                      ASL_RDESC_END_DEPEND_SIZE;
    return (Rnode);
}


/*******************************************************************************
 *
 * FUNCTION:    RsDoMemory24Descriptor
 *
 * PARAMETERS:  Op                  - Parent resource descriptor parse node
 *              CurrentByteOffset   - Offset into the resource template AML
 *                                    buffer (to track references to the desc)
 *
 * RETURN:      Completed resource node
 *
 * DESCRIPTION: Construct a short "Memory24" descriptor
 *
 ******************************************************************************/

ASL_RESOURCE_NODE *
RsDoMemory24Descriptor (
    ACPI_PARSE_OBJECT       *Op,
    UINT32                  CurrentByteOffset)
{
    AML_RESOURCE            *Descriptor;
    ACPI_PARSE_OBJECT       *InitializerOp;
    ACPI_PARSE_OBJECT       *MinOp = NULL;
    ACPI_PARSE_OBJECT       *MaxOp = NULL;
    ACPI_PARSE_OBJECT       *LengthOp = NULL;
    ASL_RESOURCE_NODE       *Rnode;
    UINT32                  i;


    InitializerOp = Op->Asl.Child;
    Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_MEMORY24));

    Descriptor = Rnode->Buffer;
    Descriptor->Memory24.DescriptorType  = ACPI_RESOURCE_NAME_MEMORY24;
    Descriptor->Memory24.ResourceLength = 9;

    /* Process all child initialization nodes */

    for (i = 0; InitializerOp; i++)
    {
        switch (i)
        {
        case 0: /* Read/Write type */

            RsSetFlagBits (&Descriptor->Memory24.Flags, InitializerOp, 0, 1);
            RsCreateBitField (InitializerOp, ACPI_RESTAG_READWRITETYPE,
                CurrentByteOffset + ASL_RESDESC_OFFSET (Memory24.Flags), 0);
            break;

        case 1: /* Min Address */

            Descriptor->Memory24.Minimum = (UINT16) InitializerOp->Asl.Value.Integer;
            RsCreateByteField (InitializerOp, ACPI_RESTAG_MINADDR,
                CurrentByteOffset + ASL_RESDESC_OFFSET (Memory24.Minimum));
            MinOp = InitializerOp;
            break;

        case 2: /* Max Address */

            Descriptor->Memory24.Maximum = (UINT16) InitializerOp->Asl.Value.Integer;
            RsCreateByteField (InitializerOp, ACPI_RESTAG_MAXADDR,
                CurrentByteOffset + ASL_RESDESC_OFFSET (Memory24.Maximum));
            MaxOp = InitializerOp;
            break;

        case 3: /* Alignment */

            Descriptor->Memory24.Alignment = (UINT16) InitializerOp->Asl.Value.Integer;
            RsCreateByteField (InitializerOp, ACPI_RESTAG_ALIGNMENT,
                CurrentByteOffset + ASL_RESDESC_OFFSET (Memory24.Alignment));
            break;

        case 4: /* Length */

            Descriptor->Memory24.AddressLength = (UINT16) InitializerOp->Asl.Value.Integer;
            RsCreateByteField (InitializerOp, ACPI_RESTAG_LENGTH,
                CurrentByteOffset + ASL_RESDESC_OFFSET (Memory24.AddressLength));
            LengthOp = InitializerOp;
            break;

        case 5: /* Name */

            UtAttachNamepathToOwner (Op, InitializerOp);
            break;

        default:

            AslError (ASL_ERROR, ASL_MSG_RESOURCE_LIST, InitializerOp, NULL);
            break;
        }

        InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
    }

    /* Validate the Min/Max/Len/Align values (Alignment==0 means 64K) */

    RsSmallAddressCheck (ACPI_RESOURCE_NAME_MEMORY24,
        Descriptor->Memory24.Minimum,
        Descriptor->Memory24.Maximum,
        Descriptor->Memory24.AddressLength,
        Descriptor->Memory24.Alignment,
        MinOp, MaxOp, LengthOp, NULL, Op);

    return (Rnode);
}


/*******************************************************************************
 *
 * FUNCTION:    RsDoMemory32Descriptor
 *
 * PARAMETERS:  Op                  - Parent resource descriptor parse node
 *              CurrentByteOffset   - Offset into the resource template AML
 *                                    buffer (to track references to the desc)
 *
 * RETURN:      Completed resource node
 *
 * DESCRIPTION: Construct a short "Memory32" descriptor
 *
 ******************************************************************************/

ASL_RESOURCE_NODE *
RsDoMemory32Descriptor (
    ACPI_PARSE_OBJECT       *Op,
    UINT32                  CurrentByteOffset)
{
    AML_RESOURCE            *Descriptor;
    ACPI_PARSE_OBJECT       *InitializerOp;
    ACPI_PARSE_OBJECT       *MinOp = NULL;
    ACPI_PARSE_OBJECT       *MaxOp = NULL;
    ACPI_PARSE_OBJECT       *LengthOp = NULL;
    ACPI_PARSE_OBJECT       *AlignOp = NULL;
    ASL_RESOURCE_NODE       *Rnode;
    UINT32                  i;


    InitializerOp = Op->Asl.Child;
    Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_MEMORY32));

    Descriptor = Rnode->Buffer;
    Descriptor->Memory32.DescriptorType  = ACPI_RESOURCE_NAME_MEMORY32;
    Descriptor->Memory32.ResourceLength = 17;

    /* Process all child initialization nodes */

    for (i = 0; InitializerOp; i++)
    {
        switch (i)
        {
        case 0: /* Read/Write type */

            RsSetFlagBits (&Descriptor->Memory32.Flags, InitializerOp, 0, 1);
            RsCreateBitField (InitializerOp, ACPI_RESTAG_READWRITETYPE,
                CurrentByteOffset + ASL_RESDESC_OFFSET (Memory32.Flags), 0);
            break;

        case 1:  /* Min Address */

            Descriptor->Memory32.Minimum = (UINT32) InitializerOp->Asl.Value.Integer;
            RsCreateByteField (InitializerOp, ACPI_RESTAG_MINADDR,
                CurrentByteOffset + ASL_RESDESC_OFFSET (Memory32.Minimum));
            MinOp = InitializerOp;
            break;

        case 2: /* Max Address */

            Descriptor->Memory32.Maximum = (UINT32) InitializerOp->Asl.Value.Integer;
            RsCreateByteField (InitializerOp, ACPI_RESTAG_MAXADDR,
                CurrentByteOffset + ASL_RESDESC_OFFSET (Memory32.Maximum));
            MaxOp = InitializerOp;
            break;

        case 3: /* Alignment */

            Descriptor->Memory32.Alignment = (UINT32) InitializerOp->Asl.Value.Integer;
            RsCreateByteField (InitializerOp, ACPI_RESTAG_ALIGNMENT,
                CurrentByteOffset + ASL_RESDESC_OFFSET (Memory32.Alignment));
            AlignOp = InitializerOp;
            break;

        case 4: /* Length */

            Descriptor->Memory32.AddressLength = (UINT32) InitializerOp->Asl.Value.Integer;
            RsCreateByteField (InitializerOp, ACPI_RESTAG_LENGTH,
                CurrentByteOffset + ASL_RESDESC_OFFSET (Memory32.AddressLength));
            LengthOp = InitializerOp;
            break;

        case 5: /* Name */

            UtAttachNamepathToOwner (Op, InitializerOp);
            break;

        default:

            AslError (ASL_ERROR, ASL_MSG_RESOURCE_LIST, InitializerOp, NULL);
            break;
        }

        InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
    }

    /* Validate the Min/Max/Len/Align values */

    RsSmallAddressCheck (ACPI_RESOURCE_NAME_MEMORY32,
        Descriptor->Memory32.Minimum,
        Descriptor->Memory32.Maximum,
        Descriptor->Memory32.AddressLength,
        Descriptor->Memory32.Alignment,
        MinOp, MaxOp, LengthOp, AlignOp, Op);

    return (Rnode);
}


/*******************************************************************************
 *
 * FUNCTION:    RsDoMemory32FixedDescriptor
 *
 * PARAMETERS:  Op                  - Parent resource descriptor parse node
 *              CurrentByteOffset   - Offset into the resource template AML
 *                                    buffer (to track references to the desc)
 *
 * RETURN:      Completed resource node
 *
 * DESCRIPTION: Construct a short "Memory32Fixed" descriptor
 *
 ******************************************************************************/

ASL_RESOURCE_NODE *
RsDoMemory32FixedDescriptor (
    ACPI_PARSE_OBJECT       *Op,
    UINT32                  CurrentByteOffset)
{
    AML_RESOURCE            *Descriptor;
    ACPI_PARSE_OBJECT       *InitializerOp;
    ASL_RESOURCE_NODE       *Rnode;
    UINT32                  i;


    InitializerOp = Op->Asl.Child;
    Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_FIXED_MEMORY32));

    Descriptor = Rnode->Buffer;
    Descriptor->FixedMemory32.DescriptorType  = ACPI_RESOURCE_NAME_FIXED_MEMORY32;
    Descriptor->FixedMemory32.ResourceLength = 9;

    /* Process all child initialization nodes */

    for (i = 0; InitializerOp; i++)
    {
        switch (i)
        {
        case 0: /* Read/Write type */

            RsSetFlagBits (&Descriptor->FixedMemory32.Flags, InitializerOp, 0, 1);
            RsCreateBitField (InitializerOp, ACPI_RESTAG_READWRITETYPE,
                CurrentByteOffset + ASL_RESDESC_OFFSET (FixedMemory32.Flags), 0);
            break;

        case 1: /* Address */

            Descriptor->FixedMemory32.Address = (UINT32) InitializerOp->Asl.Value.Integer;
            RsCreateByteField (InitializerOp, ACPI_RESTAG_BASEADDRESS,
                CurrentByteOffset + ASL_RESDESC_OFFSET (FixedMemory32.Address));
            break;

        case 2: /* Length */

            Descriptor->FixedMemory32.AddressLength = (UINT32) InitializerOp->Asl.Value.Integer;
            RsCreateByteField (InitializerOp, ACPI_RESTAG_LENGTH,
                CurrentByteOffset + ASL_RESDESC_OFFSET (FixedMemory32.AddressLength));
            break;

        case 3: /* Name */

            UtAttachNamepathToOwner (Op, InitializerOp);
            break;

        default:

            AslError (ASL_ERROR, ASL_MSG_RESOURCE_LIST, InitializerOp, NULL);
            break;
        }

        InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
    }

    return (Rnode);
}


/*******************************************************************************
 *
 * FUNCTION:    RsDoStartDependentDescriptor
 *
 * PARAMETERS:  Op                  - Parent resource descriptor parse node
 *              CurrentByteOffset   - Offset into the resource template AML
 *                                    buffer (to track references to the desc)
 *
 * RETURN:      Completed resource node
 *
 * DESCRIPTION: Construct a short "StartDependentFn" descriptor
 *
 ******************************************************************************/

ASL_RESOURCE_NODE *
RsDoStartDependentDescriptor (
    ACPI_PARSE_OBJECT       *Op,
    UINT32                  CurrentByteOffset)
{
    AML_RESOURCE            *Descriptor;
    ACPI_PARSE_OBJECT       *InitializerOp;
    ASL_RESOURCE_NODE       *Rnode;
    ASL_RESOURCE_NODE       *PreviousRnode;
    ASL_RESOURCE_NODE       *NextRnode;
    UINT32                  i;
    UINT8                   State;


    InitializerOp = Op->Asl.Child;
    Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_START_DEPENDENT));

    PreviousRnode = Rnode;
    Descriptor = Rnode->Buffer;

    /* Descriptor has priority byte */

    Descriptor->StartDpf.DescriptorType  = ACPI_RESOURCE_NAME_START_DEPENDENT |
                                      (ASL_RDESC_ST_DEPEND_SIZE + 0x01);

    /* Process all child initialization nodes */

    State = ACPI_RSTATE_START_DEPENDENT;
    for (i = 0; InitializerOp; i++)
    {
        switch (i)
        {
        case 0: /* Compatibility Priority */

            if ((UINT8) InitializerOp->Asl.Value.Integer > 2)
            {
                AslError (ASL_ERROR, ASL_MSG_INVALID_PRIORITY,
                    InitializerOp, NULL);
            }

            RsSetFlagBits (&Descriptor->StartDpf.Flags, InitializerOp, 0, 0);
            break;

        case 1: /* Performance/Robustness Priority */

            if ((UINT8) InitializerOp->Asl.Value.Integer > 2)
            {
                AslError (ASL_ERROR, ASL_MSG_INVALID_PERFORMANCE,
                    InitializerOp, NULL);
            }

            RsSetFlagBits (&Descriptor->StartDpf.Flags, InitializerOp, 2, 0);
            break;

        default:

            NextRnode = RsDoOneResourceDescriptor  (InitializerOp,
                        CurrentByteOffset, &State);

            /*
             * Update current byte offset to indicate the number of bytes from the
             * start of the buffer.  Buffer can include multiple descriptors, we
             * must keep track of the offset of not only each descriptor, but each
             * element (field) within each descriptor as well.
             */
            CurrentByteOffset += RsLinkDescriptorChain (&PreviousRnode,
                                    NextRnode);
            break;
        }

        InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
    }

    return (Rnode);
}


/*******************************************************************************
 *
 * FUNCTION:    RsDoStartDependentNoPriDescriptor
 *
 * PARAMETERS:  Op                  - Parent resource descriptor parse node
 *              CurrentByteOffset   - Offset into the resource template AML
 *                                    buffer (to track references to the desc)
 *
 * RETURN:      Completed resource node
 *
 * DESCRIPTION: Construct a short "StartDependentNoPri" descriptor
 *
 ******************************************************************************/

ASL_RESOURCE_NODE *
RsDoStartDependentNoPriDescriptor (
    ACPI_PARSE_OBJECT       *Op,
    UINT32                  CurrentByteOffset)
{
    AML_RESOURCE            *Descriptor;
    ACPI_PARSE_OBJECT       *InitializerOp;
    ASL_RESOURCE_NODE       *Rnode;
    ASL_RESOURCE_NODE       *PreviousRnode;
    ASL_RESOURCE_NODE       *NextRnode;
    UINT8                   State;


    InitializerOp = Op->Asl.Child;
    Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_START_DEPENDENT_NOPRIO));

    Descriptor = Rnode->Buffer;
    Descriptor->StartDpf.DescriptorType  = ACPI_RESOURCE_NAME_START_DEPENDENT |
                                      ASL_RDESC_ST_DEPEND_SIZE;
    PreviousRnode = Rnode;

    /* Process all child initialization nodes */

    State = ACPI_RSTATE_START_DEPENDENT;
    while (InitializerOp)
    {
        NextRnode = RsDoOneResourceDescriptor  (InitializerOp,
                        CurrentByteOffset, &State);

        /*
         * Update current byte offset to indicate the number of bytes from the
         * start of the buffer.  Buffer can include multiple descriptors, we
         * must keep track of the offset of not only each descriptor, but each
         * element (field) within each descriptor as well.
         */
        CurrentByteOffset += RsLinkDescriptorChain (&PreviousRnode, NextRnode);

        InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
    }

    return (Rnode);
}


/*******************************************************************************
 *
 * FUNCTION:    RsDoVendorSmallDescriptor
 *
 * PARAMETERS:  Op                  - Parent resource descriptor parse node
 *              CurrentByteOffset   - Offset into the resource template AML
 *                                    buffer (to track references to the desc)
 *
 * RETURN:      Completed resource node
 *
 * DESCRIPTION: Construct a short "VendorShort" descriptor
 *
 ******************************************************************************/

ASL_RESOURCE_NODE *
RsDoVendorSmallDescriptor (
    ACPI_PARSE_OBJECT       *Op,
    UINT32                  CurrentByteOffset)
{
    AML_RESOURCE            *Descriptor;
    ACPI_PARSE_OBJECT       *InitializerOp;
    ASL_RESOURCE_NODE       *Rnode;
    UINT8                   *VendorData;
    UINT32                  i;


    InitializerOp = Op->Asl.Child;

    /* Allocate worst case - 7 vendor bytes */

    Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_VENDOR_SMALL) + 7);

    Descriptor = Rnode->Buffer;
    Descriptor->VendorSmall.DescriptorType  = ACPI_RESOURCE_NAME_VENDOR_SMALL;
    VendorData = ((UINT8 *) Descriptor) + sizeof (AML_RESOURCE_SMALL_HEADER);

    /* Process all child initialization nodes */

    InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
    for (i = 0; InitializerOp; i++)
    {
        if (InitializerOp->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)
        {
            break;
        }

        /* Maximum 7 vendor data bytes allowed (0-6) */

        if (i >= 7)
        {
            AslError (ASL_ERROR, ASL_MSG_VENDOR_LIST, InitializerOp, NULL);

            /* Eat the excess initializers */

            while (InitializerOp)
            {
                InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
            }
            break;
        }

        VendorData[i] = (UINT8) InitializerOp->Asl.Value.Integer;
        InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
    }

    /* Adjust the Rnode buffer size, so correct number of bytes are emitted */

    Rnode->BufferLength -= (7 - i);

    /* Set the length in the Type Tag */

    Descriptor->VendorSmall.DescriptorType |= (UINT8) i;
    return (Rnode);
}