--- /dev/null	ven. janv. 17 07:30:23 2014
+++ new/usr/src/common/acpica/components/namespace/nsconvert.c	ven. janv. 17 07:30:23 2014
@@ -0,0 +1,484 @@
+/******************************************************************************
+ *
+ * Module Name: nsconvert - Object conversions for objects returned by
+ *                          predefined methods
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2014, 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 __NSCONVERT_C__
+
+#include "acpi.h"
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acinterp.h"
+#include "acpredef.h"
+#include "amlresrc.h"
+
+#define _COMPONENT          ACPI_NAMESPACE
+        ACPI_MODULE_NAME    ("nsconvert")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiNsConvertToInteger
+ *
+ * PARAMETERS:  OriginalObject      - Object to be converted
+ *              ReturnObject        - Where the new converted object is returned
+ *
+ * RETURN:      Status. AE_OK if conversion was successful.
+ *
+ * DESCRIPTION: Attempt to convert a String/Buffer object to an Integer.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiNsConvertToInteger (
+    ACPI_OPERAND_OBJECT     *OriginalObject,
+    ACPI_OPERAND_OBJECT     **ReturnObject)
+{
+    ACPI_OPERAND_OBJECT     *NewObject;
+    ACPI_STATUS             Status;
+    UINT64                  Value = 0;
+    UINT32                  i;
+
+
+    switch (OriginalObject->Common.Type)
+    {
+    case ACPI_TYPE_STRING:
+
+        /* String-to-Integer conversion */
+
+        Status = AcpiUtStrtoul64 (OriginalObject->String.Pointer,
+                    ACPI_ANY_BASE, &Value);
+        if (ACPI_FAILURE (Status))
+        {
+            return (Status);
+        }
+        break;
+
+    case ACPI_TYPE_BUFFER:
+
+        /* Buffer-to-Integer conversion. Max buffer size is 64 bits. */
+
+        if (OriginalObject->Buffer.Length > 8)
+        {
+            return (AE_AML_OPERAND_TYPE);
+        }
+
+        /* Extract each buffer byte to create the integer */
+
+        for (i = 0; i < OriginalObject->Buffer.Length; i++)
+        {
+            Value |= ((UINT64) OriginalObject->Buffer.Pointer[i] << (i * 8));
+        }
+        break;
+
+    default:
+
+        return (AE_AML_OPERAND_TYPE);
+    }
+
+    NewObject = AcpiUtCreateIntegerObject (Value);
+    if (!NewObject)
+    {
+        return (AE_NO_MEMORY);
+    }
+
+    *ReturnObject = NewObject;
+    return (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiNsConvertToString
+ *
+ * PARAMETERS:  OriginalObject      - Object to be converted
+ *              ReturnObject        - Where the new converted object is returned
+ *
+ * RETURN:      Status. AE_OK if conversion was successful.
+ *
+ * DESCRIPTION: Attempt to convert a Integer/Buffer object to a String.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiNsConvertToString (
+    ACPI_OPERAND_OBJECT     *OriginalObject,
+    ACPI_OPERAND_OBJECT     **ReturnObject)
+{
+    ACPI_OPERAND_OBJECT     *NewObject;
+    ACPI_SIZE               Length;
+    ACPI_STATUS             Status;
+
+
+    switch (OriginalObject->Common.Type)
+    {
+    case ACPI_TYPE_INTEGER:
+        /*
+         * Integer-to-String conversion. Commonly, convert
+         * an integer of value 0 to a NULL string. The last element of
+         * _BIF and _BIX packages occasionally need this fix.
+         */
+        if (OriginalObject->Integer.Value == 0)
+        {
+            /* Allocate a new NULL string object */
+
+            NewObject = AcpiUtCreateStringObject (0);
+            if (!NewObject)
+            {
+                return (AE_NO_MEMORY);
+            }
+        }
+        else
+        {
+            Status = AcpiExConvertToString (OriginalObject, &NewObject,
+                        ACPI_IMPLICIT_CONVERT_HEX);
+            if (ACPI_FAILURE (Status))
+            {
+                return (Status);
+            }
+        }
+        break;
+
+    case ACPI_TYPE_BUFFER:
+        /*
+         * Buffer-to-String conversion. Use a ToString
+         * conversion, no transform performed on the buffer data. The best
+         * example of this is the _BIF method, where the string data from
+         * the battery is often (incorrectly) returned as buffer object(s).
+         */
+        Length = 0;
+        while ((Length < OriginalObject->Buffer.Length) &&
+                (OriginalObject->Buffer.Pointer[Length]))
+        {
+            Length++;
+        }
+
+        /* Allocate a new string object */
+
+        NewObject = AcpiUtCreateStringObject (Length);
+        if (!NewObject)
+        {
+            return (AE_NO_MEMORY);
+        }
+
+        /*
+         * Copy the raw buffer data with no transform. String is already NULL
+         * terminated at Length+1.
+         */
+        ACPI_MEMCPY (NewObject->String.Pointer,
+            OriginalObject->Buffer.Pointer, Length);
+        break;
+
+    default:
+
+        return (AE_AML_OPERAND_TYPE);
+    }
+
+    *ReturnObject = NewObject;
+    return (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiNsConvertToBuffer
+ *
+ * PARAMETERS:  OriginalObject      - Object to be converted
+ *              ReturnObject        - Where the new converted object is returned
+ *
+ * RETURN:      Status. AE_OK if conversion was successful.
+ *
+ * DESCRIPTION: Attempt to convert a Integer/String/Package object to a Buffer.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiNsConvertToBuffer (
+    ACPI_OPERAND_OBJECT     *OriginalObject,
+    ACPI_OPERAND_OBJECT     **ReturnObject)
+{
+    ACPI_OPERAND_OBJECT     *NewObject;
+    ACPI_STATUS             Status;
+    ACPI_OPERAND_OBJECT     **Elements;
+    UINT32                  *DwordBuffer;
+    UINT32                  Count;
+    UINT32                  i;
+
+
+    switch (OriginalObject->Common.Type)
+    {
+    case ACPI_TYPE_INTEGER:
+        /*
+         * Integer-to-Buffer conversion.
+         * Convert the Integer to a packed-byte buffer. _MAT and other
+         * objects need this sometimes, if a read has been performed on a
+         * Field object that is less than or equal to the global integer
+         * size (32 or 64 bits).
+         */
+        Status = AcpiExConvertToBuffer (OriginalObject, &NewObject);
+        if (ACPI_FAILURE (Status))
+        {
+            return (Status);
+        }
+        break;
+
+    case ACPI_TYPE_STRING:
+
+        /* String-to-Buffer conversion. Simple data copy */
+
+        NewObject = AcpiUtCreateBufferObject (OriginalObject->String.Length);
+        if (!NewObject)
+        {
+            return (AE_NO_MEMORY);
+        }
+
+        ACPI_MEMCPY (NewObject->Buffer.Pointer,
+            OriginalObject->String.Pointer, OriginalObject->String.Length);
+        break;
+
+    case ACPI_TYPE_PACKAGE:
+        /*
+         * This case is often seen for predefined names that must return a
+         * Buffer object with multiple DWORD integers within. For example,
+         * _FDE and _GTM. The Package can be converted to a Buffer.
+         */
+
+        /* All elements of the Package must be integers */
+
+        Elements = OriginalObject->Package.Elements;
+        Count = OriginalObject->Package.Count;
+
+        for (i = 0; i < Count; i++)
+        {
+            if ((!*Elements) ||
+                ((*Elements)->Common.Type != ACPI_TYPE_INTEGER))
+            {
+                return (AE_AML_OPERAND_TYPE);
+            }
+            Elements++;
+        }
+
+        /* Create the new buffer object to replace the Package */
+
+        NewObject = AcpiUtCreateBufferObject (ACPI_MUL_4 (Count));
+        if (!NewObject)
+        {
+            return (AE_NO_MEMORY);
+        }
+
+        /* Copy the package elements (integers) to the buffer as DWORDs */
+
+        Elements = OriginalObject->Package.Elements;
+        DwordBuffer = ACPI_CAST_PTR (UINT32, NewObject->Buffer.Pointer);
+
+        for (i = 0; i < Count; i++)
+        {
+            *DwordBuffer = (UINT32) (*Elements)->Integer.Value;
+            DwordBuffer++;
+            Elements++;
+        }
+        break;
+
+    default:
+
+        return (AE_AML_OPERAND_TYPE);
+    }
+
+    *ReturnObject = NewObject;
+    return (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiNsConvertToUnicode
+ *
+ * PARAMETERS:  OriginalObject      - ASCII String Object to be converted
+ *              ReturnObject        - Where the new converted object is returned
+ *
+ * RETURN:      Status. AE_OK if conversion was successful.
+ *
+ * DESCRIPTION: Attempt to convert a String object to a Unicode string Buffer.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiNsConvertToUnicode (
+    ACPI_OPERAND_OBJECT     *OriginalObject,
+    ACPI_OPERAND_OBJECT     **ReturnObject)
+{
+    ACPI_OPERAND_OBJECT     *NewObject;
+    char                    *AsciiString;
+    UINT16                  *UnicodeBuffer;
+    UINT32                  UnicodeLength;
+    UINT32                  i;
+
+
+    if (!OriginalObject)
+    {
+        return (AE_OK);
+    }
+
+    /* If a Buffer was returned, it must be at least two bytes long */
+
+    if (OriginalObject->Common.Type == ACPI_TYPE_BUFFER)
+    {
+        if (OriginalObject->Buffer.Length < 2)
+        {
+            return (AE_AML_OPERAND_VALUE);
+        }
+
+        *ReturnObject = NULL;
+        return (AE_OK);
+    }
+
+    /*
+     * The original object is an ASCII string. Convert this string to
+     * a unicode buffer.
+     */
+    AsciiString = OriginalObject->String.Pointer;
+    UnicodeLength = (OriginalObject->String.Length * 2) + 2;
+
+    /* Create a new buffer object for the Unicode data */
+
+    NewObject = AcpiUtCreateBufferObject (UnicodeLength);
+    if (!NewObject)
+    {
+        return (AE_NO_MEMORY);
+    }
+
+    UnicodeBuffer = ACPI_CAST_PTR (UINT16, NewObject->Buffer.Pointer);
+
+    /* Convert ASCII to Unicode */
+
+    for (i = 0; i < OriginalObject->String.Length; i++)
+    {
+        UnicodeBuffer[i] = (UINT16) AsciiString[i];
+    }
+
+    *ReturnObject = NewObject;
+    return (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiNsConvertToResource
+ *
+ * PARAMETERS:  OriginalObject      - Object to be converted
+ *              ReturnObject        - Where the new converted object is returned
+ *
+ * RETURN:      Status. AE_OK if conversion was successful
+ *
+ * DESCRIPTION: Attempt to convert a Integer object to a ResourceTemplate
+ *              Buffer.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiNsConvertToResource (
+    ACPI_OPERAND_OBJECT     *OriginalObject,
+    ACPI_OPERAND_OBJECT     **ReturnObject)
+{
+    ACPI_OPERAND_OBJECT     *NewObject;
+    UINT8                   *Buffer;
+
+
+    /*
+     * We can fix the following cases for an expected resource template:
+     * 1. No return value (interpreter slack mode is disabled)
+     * 2. A "Return (Zero)" statement
+     * 3. A "Return empty buffer" statement
+     *
+     * We will return a buffer containing a single EndTag
+     * resource descriptor.
+     */
+    if (OriginalObject)
+    {
+        switch (OriginalObject->Common.Type)
+        {
+        case ACPI_TYPE_INTEGER:
+
+            /* We can only repair an Integer==0 */
+
+            if (OriginalObject->Integer.Value)
+            {
+                return (AE_AML_OPERAND_TYPE);
+            }
+            break;
+
+        case ACPI_TYPE_BUFFER:
+
+            if (OriginalObject->Buffer.Length)
+            {
+                /* Additional checks can be added in the future */
+
+                *ReturnObject = NULL;
+                return (AE_OK);
+            }
+            break;
+
+        case ACPI_TYPE_STRING:
+        default:
+
+            return (AE_AML_OPERAND_TYPE);
+        }
+    }
+
+    /* Create the new buffer object for the resource descriptor */
+
+    NewObject = AcpiUtCreateBufferObject (2);
+    if (!NewObject)
+    {
+        return (AE_NO_MEMORY);
+    }
+
+    Buffer = ACPI_CAST_PTR (UINT8, NewObject->Buffer.Pointer);
+
+    /* Initialize the Buffer with a single EndTag descriptor */
+
+    Buffer[0] = (ACPI_RESOURCE_NAME_END_TAG | ASL_RDESC_END_TAG_SIZE);
+    Buffer[1] = 0x00;
+
+    *ReturnObject = NewObject;
+    return (AE_OK);
+}
