1 files changed, 375 insertions, 0 deletions
diff --git a/source/compiler/dtsubtable.c b/source/compiler/dtsubtable.c
new file mode 100644
index 0000000..27d09ca
--- /dev/null
+++ b/source/compiler/dtsubtable.c
@@ -0,0 +1,375 @@
+/******************************************************************************
+ *
+ * Module Name: dtsubtable.c - handling of subtables within ACPI tables
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2012, 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.
+ */
+
+#define __DTSUBTABLE_C__
+
+#include "aslcompiler.h"
+#include "dtcompiler.h"
+
+#define _COMPONENT          DT_COMPILER
+        ACPI_MODULE_NAME    ("dtsubtable")
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    DtCreateSubtable
+ *
+ * PARAMETERS:  Buffer              - Input buffer
+ *              Length              - Buffer length
+ *              RetSubtable         - Returned newly created subtable
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Create a subtable that is not listed with ACPI_DMTABLE_INFO
+ *              For example, FACS has 24 bytes reserved at the end
+ *              and it's not listed at AcpiDmTableInfoFacs
+ *
+ *****************************************************************************/
+
+void
+DtCreateSubtable (
+    UINT8                   *Buffer,
+    UINT32                  Length,
+    DT_SUBTABLE             **RetSubtable)
+{
+    DT_SUBTABLE             *Subtable;
+
+
+    Subtable = UtLocalCalloc (sizeof (DT_SUBTABLE));
+
+    /* Create a new buffer for the subtable data */
+
+    Subtable->Buffer = UtLocalCalloc (Length);
+    ACPI_MEMCPY (Subtable->Buffer, Buffer, Length);
+
+    Subtable->Length = Length;
+    Subtable->TotalLength = Length;
+
+    *RetSubtable = Subtable;
+}
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    DtInsertSubtable
+ *
+ * PARAMETERS:  ParentTable         - The Parent of the new subtable
+ *              Subtable            - The new subtable to insert
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Insert the new subtable to the parent table
+ *
+ *****************************************************************************/
+
+void
+DtInsertSubtable (
+    DT_SUBTABLE             *ParentTable,
+    DT_SUBTABLE             *Subtable)
+{
+    DT_SUBTABLE             *ChildTable;
+
+
+    Subtable->Peer = NULL;
+    Subtable->Parent = ParentTable;
+
+    /* Link the new entry into the child list */
+
+    if (!ParentTable->Child)
+    {
+        ParentTable->Child = Subtable;
+    }
+    else
+    {
+        /* Walk to the end of the child list */
+
+        ChildTable = ParentTable->Child;
+        while (ChildTable->Peer)
+        {
+            ChildTable = ChildTable->Peer;
+        }
+
+        /* Add new subtable at the end of the child list */
+
+        ChildTable->Peer = Subtable;
+    }
+}
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    DtPushSubtable
+ *
+ * PARAMETERS:  Subtable            - Subtable to push
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Push a subtable onto a subtable stack
+ *
+ *****************************************************************************/
+
+void
+DtPushSubtable (
+    DT_SUBTABLE             *Subtable)
+{
+
+    Subtable->StackTop = Gbl_SubtableStack;
+    Gbl_SubtableStack = Subtable;
+}
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    DtPopSubtable
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Pop a subtable from a subtable stack. Uses global SubtableStack
+ *
+ *****************************************************************************/
+
+void
+DtPopSubtable (
+    void)
+{
+    DT_SUBTABLE             *Subtable;
+
+
+    Subtable = Gbl_SubtableStack;
+
+    if (Subtable)
+    {
+        Gbl_SubtableStack = Subtable->StackTop;
+    }
+}
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    DtPeekSubtable
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      The subtable on top of stack
+ *
+ * DESCRIPTION: Get the subtable on top of stack
+ *
+ *****************************************************************************/
+
+DT_SUBTABLE *
+DtPeekSubtable (
+    void)
+{
+
+    return (Gbl_SubtableStack);
+}
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    DtGetNextSubtable
+ *
+ * PARAMETERS:  ParentTable         - Parent table whose children we are
+ *                                    getting
+ *              ChildTable          - Previous child that was found.
+ *                                    The NEXT child will be returned
+ *
+ * RETURN:      Pointer to the NEXT child or NULL if none is found.
+ *
+ * DESCRIPTION: Return the next peer subtable within the tree.
+ *
+ *****************************************************************************/
+
+DT_SUBTABLE *
+DtGetNextSubtable (
+    DT_SUBTABLE             *ParentTable,
+    DT_SUBTABLE             *ChildTable)
+{
+    ACPI_FUNCTION_ENTRY ();
+
+
+    if (!ChildTable)
+    {
+        /* It's really the parent's _scope_ that we want */
+
+        return (ParentTable->Child);
+    }
+
+    /* Otherwise just return the next peer (NULL if at end-of-list) */
+
+    return (ChildTable->Peer);
+}
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    DtGetParentSubtable
+ *
+ * PARAMETERS:  Subtable            - Current subtable
+ *
+ * RETURN:      Parent of the given subtable
+ *
+ * DESCRIPTION: Get the parent of the given subtable in the tree
+ *
+ *****************************************************************************/
+
+DT_SUBTABLE *
+DtGetParentSubtable (
+    DT_SUBTABLE             *Subtable)
+{
+
+    if (!Subtable)
+    {
+        return (NULL);
+    }
+
+    return (Subtable->Parent);
+}
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    DtGetSubtableLength
+ *
+ * PARAMETERS:  Field               - Current field list pointer
+ *              Info                - Data table info
+ *
+ * RETURN:      Subtable length
+ *
+ * DESCRIPTION: Get length of bytes needed to compile the subtable
+ *
+ *****************************************************************************/
+
+UINT32
+DtGetSubtableLength (
+    DT_FIELD                *Field,
+    ACPI_DMTABLE_INFO       *Info)
+{
+    UINT32                  ByteLength = 0;
+    UINT8                   Step;
+    UINT8                   i;
+
+
+    /* Walk entire Info table; Null name terminates */
+
+    for (; Info->Name; Info++)
+    {
+        if (Info->Opcode == ACPI_DMT_EXTRA_TEXT)
+        {
+            continue;
+        }
+
+        if (!Field)
+        {
+            goto Error;
+        }
+
+        ByteLength += DtGetFieldLength (Field, Info);
+
+        switch (Info->Opcode)
+        {
+        case ACPI_DMT_GAS:
+            Step = 5;
+            break;
+
+        case ACPI_DMT_HESTNTFY:
+            Step = 9;
+            break;
+
+        default:
+            Step = 1;
+            break;
+        }
+
+        for (i = 0; i < Step; i++)
+        {
+            if (!Field)
+            {
+                goto Error;
+            }
+
+            Field = Field->Next;
+        }
+    }
+
+    return (ByteLength);
+
+Error:
+    if (!Field)
+    {
+        sprintf (MsgBuffer, "Found NULL field - Field name \"%s\" needed",
+            Info->Name);
+        DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, MsgBuffer);
+    }
+
+    return (ASL_EOF);
+}
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    DtSetSubtableLength
+ *
+ * PARAMETERS:  Subtable            - Subtable
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Set length of the subtable into its length field
+ *
+ *****************************************************************************/
+
+void
+DtSetSubtableLength (
+    DT_SUBTABLE             *Subtable)
+{
+
+    if (!Subtable->LengthField)
+    {
+        return;
+    }
+
+    ACPI_MEMCPY (Subtable->LengthField, &Subtable->TotalLength,
+        Subtable->SizeOfLengthField);
+}