aslrestype1.c

acpi tools for linux include acpiexec and acpixtract

 ******************************************************************************/

ASL_RESOURCE_NODE *
RsDoIoDescriptor (
    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_IO));

    Descriptor = Rnode->Buffer;
    Descriptor->Io.DescriptorType  = ACPI_RESOURCE_NAME_IO |
                                      ASL_RDESC_IO_SIZE;

    /* Process all child initialization nodes */

    for (i = 0; InitializerOp; i++)
    {
        switch (i)
        {
        case 0: /* Decode size */

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

        case 1:  /* Min Address */

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

        case 2: /* Max Address */

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

        case 3: /* Alignment */

            Descriptor->Io.Alignment =
                (UINT8) InitializerOp->Asl.Value.Integer;
            RsCreateByteField (InitializerOp, ACPI_RESTAG_ALIGNMENT,
                CurrentByteOffset + ASL_RESDESC_OFFSET (Io.Alignment));
            break;

        case 4: /* Length */

            Descriptor->Io.AddressLength =
                (UINT8) InitializerOp->Asl.Value.Integer;
            RsCreateByteField (InitializerOp, ACPI_RESTAG_LENGTH,
                CurrentByteOffset + ASL_RESDESC_OFFSET (Io.AddressLength));
            break;

        case 5: /* Name */

            UtAttachNamepathToOwner (Op, InitializerOp);
            break;

        default:

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

        InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
    }

    return (Rnode);
}


/*******************************************************************************
 *
 * FUNCTION:    RsDoIrqDescriptor
 *
 * 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 "IRQ" descriptor
 *
 ******************************************************************************/

ASL_RESOURCE_NODE *
RsDoIrqDescriptor (
    ACPI_PARSE_OBJECT       *Op,
    UINT32                  CurrentByteOffset)
{
    AML_RESOURCE            *Descriptor;
    ACPI_PARSE_OBJECT       *InitializerOp;
    ASL_RESOURCE_NODE       *Rnode;
    UINT32                  Interrupts = 0;
    UINT16                  IrqMask = 0;
    UINT32                  i;


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

    /* Length = 3 (with flag byte) */

    Descriptor = Rnode->Buffer;
    Descriptor->Irq.DescriptorType  = ACPI_RESOURCE_NAME_IRQ |
                                      (ASL_RDESC_IRQ_SIZE + 0x01);

    /* Process all child initialization nodes */

    for (i = 0; InitializerOp; i++)
    {
        switch (i)
        {
        case 0: /* Interrupt Type (or Mode - edge/level) */

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

        case 1: /* Interrupt Level (or Polarity - Active high/low) */

            RsSetFlagBits (&Descriptor->Irq.Flags, InitializerOp, 3, 0);
            RsCreateBitField (InitializerOp, ACPI_RESTAG_INTERRUPTLEVEL,
                CurrentByteOffset + ASL_RESDESC_OFFSET (Irq.Flags), 3);
            break;

        case 2: /* Share Type - Default: exclusive (0) */

            RsSetFlagBits (&Descriptor->Irq.Flags, InitializerOp, 4, 0);
            RsCreateBitField (InitializerOp, ACPI_RESTAG_INTERRUPTSHARE,
                CurrentByteOffset + ASL_RESDESC_OFFSET (Irq.Flags), 4);
            break;

        case 3: /* Name */

            UtAttachNamepathToOwner (Op, InitializerOp);
            break;

        default:

            /* All IRQ bytes are handled here, after the flags and name */

            if (InitializerOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
            {
                /* Up to 16 interrupts can be specified in the list */

                Interrupts++;
                if (Interrupts > 16)
                {
                    AslError (ASL_ERROR, ASL_MSG_INTERRUPT_LIST,
                        InitializerOp, NULL);
                    return (Rnode);
                }

                /* Only interrupts 0-15 are allowed (mask is 16 bits) */

                if (InitializerOp->Asl.Value.Integer > 15)
                {
                    AslError (ASL_ERROR, ASL_MSG_INTERRUPT_NUMBER,
                        InitializerOp, NULL);
                }
                else
                {
                    IrqMask |= (1 << (UINT8) InitializerOp->Asl.Value.Integer);
                }
            }

            /* Case 4: First IRQ value in list */

            if (i == 4)
            {
                /* Check now for duplicates in list */

                RsCheckListForDuplicates (InitializerOp);

                /* Create a named field at the start of the list */

                RsCreateByteField (InitializerOp, ACPI_RESTAG_INTERRUPT,
                    CurrentByteOffset + ASL_RESDESC_OFFSET (Irq.IrqMask));
            }
            break;
        }

        InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
    }

    /* Now we can set the channel mask */

    Descriptor->Irq.IrqMask = IrqMask;
    return (Rnode);
}


/*******************************************************************************
 *
 * FUNCTION:    RsDoIrqNoFlagsDescriptor
 *
 * 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 "IRQNoFlags" descriptor
 *
 ******************************************************************************/

ASL_RESOURCE_NODE *
RsDoIrqNoFlagsDescriptor (
    ACPI_PARSE_OBJECT       *Op,
    UINT32                  CurrentByteOffset)
{
    AML_RESOURCE            *Descriptor;
    ACPI_PARSE_OBJECT       *InitializerOp;
    ASL_RESOURCE_NODE       *Rnode;
    UINT16                  IrqMask = 0;
    UINT32                  Interrupts = 0;
    UINT32                  i;


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

    Descriptor = Rnode->Buffer;
    Descriptor->Irq.DescriptorType  = ACPI_RESOURCE_NAME_IRQ |
                                      ASL_RDESC_IRQ_SIZE;

    /* Process all child initialization nodes */

    for (i = 0; InitializerOp; i++)
    {
        switch (i)
        {
        case 0: /* Name */

            UtAttachNamepathToOwner (Op, InitializerOp);
            break;

        default:

            /* IRQ bytes are handled here, after the flags and name */

            if (InitializerOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
            {
                /* Up to 16 interrupts can be specified in the list */

                Interrupts++;
                if (Interrupts > 16)
                {
                    AslError (ASL_ERROR, ASL_MSG_INTERRUPT_LIST,
                        InitializerOp, NULL);
                    return (Rnode);
                }

                /* Only interrupts 0-15 are allowed (mask is 16 bits) */

                if (InitializerOp->Asl.Value.Integer > 15)
                {
                    AslError (ASL_ERROR, ASL_MSG_INTERRUPT_NUMBER,
                        InitializerOp, NULL);
                }
                else
                {
                    IrqMask |= (1 << ((UINT8) InitializerOp->Asl.Value.Integer));
                }
            }

            /* Case 1: First IRQ value in list */

            if (i == 1)
            {
                /* Check now for duplicates in list */

                RsCheckListForDuplicates (InitializerOp);

                /* Create a named field at the start of the list */

                RsCreateByteField (InitializerOp, ACPI_RESTAG_INTERRUPT,
                    CurrentByteOffset + ASL_RESDESC_OFFSET (Irq.IrqMask));
            }
            break;
        }

        InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
    }

    /* Now we can set the interrupt mask */

    Descriptor->Irq.IrqMask = IrqMask;
    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;
    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));
            break;

        case 2: /* Max Address */

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

        case 5: /* Name */

            UtAttachNamepathToOwner (Op, InitializerOp);
            break;

        default:

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

        InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
    }

    return (Rnode);
}