17b1019a6SJerry Jelinek /******************************************************************************
27b1019a6SJerry Jelinek *
37b1019a6SJerry Jelinek * Module Name: nsconvert - Object conversions for objects returned by
47b1019a6SJerry Jelinek * predefined methods
57b1019a6SJerry Jelinek *
67b1019a6SJerry Jelinek *****************************************************************************/
77b1019a6SJerry Jelinek
8*35786f68SRobert Mustacchi /******************************************************************************
9*35786f68SRobert Mustacchi *
10*35786f68SRobert Mustacchi * 1. Copyright Notice
11*35786f68SRobert Mustacchi *
12*35786f68SRobert Mustacchi * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp.
137b1019a6SJerry Jelinek * All rights reserved.
147b1019a6SJerry Jelinek *
15*35786f68SRobert Mustacchi * 2. License
16*35786f68SRobert Mustacchi *
17*35786f68SRobert Mustacchi * 2.1. This is your license from Intel Corp. under its intellectual property
18*35786f68SRobert Mustacchi * rights. You may have additional license terms from the party that provided
19*35786f68SRobert Mustacchi * you this software, covering your right to use that party's intellectual
20*35786f68SRobert Mustacchi * property rights.
21*35786f68SRobert Mustacchi *
22*35786f68SRobert Mustacchi * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
23*35786f68SRobert Mustacchi * copy of the source code appearing in this file ("Covered Code") an
24*35786f68SRobert Mustacchi * irrevocable, perpetual, worldwide license under Intel's copyrights in the
25*35786f68SRobert Mustacchi * base code distributed originally by Intel ("Original Intel Code") to copy,
26*35786f68SRobert Mustacchi * make derivatives, distribute, use and display any portion of the Covered
27*35786f68SRobert Mustacchi * Code in any form, with the right to sublicense such rights; and
28*35786f68SRobert Mustacchi *
29*35786f68SRobert Mustacchi * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
30*35786f68SRobert Mustacchi * license (with the right to sublicense), under only those claims of Intel
31*35786f68SRobert Mustacchi * patents that are infringed by the Original Intel Code, to make, use, sell,
32*35786f68SRobert Mustacchi * offer to sell, and import the Covered Code and derivative works thereof
33*35786f68SRobert Mustacchi * solely to the minimum extent necessary to exercise the above copyright
34*35786f68SRobert Mustacchi * license, and in no event shall the patent license extend to any additions
35*35786f68SRobert Mustacchi * to or modifications of the Original Intel Code. No other license or right
36*35786f68SRobert Mustacchi * is granted directly or by implication, estoppel or otherwise;
37*35786f68SRobert Mustacchi *
38*35786f68SRobert Mustacchi * The above copyright and patent license is granted only if the following
39*35786f68SRobert Mustacchi * conditions are met:
40*35786f68SRobert Mustacchi *
41*35786f68SRobert Mustacchi * 3. Conditions
42*35786f68SRobert Mustacchi *
43*35786f68SRobert Mustacchi * 3.1. Redistribution of Source with Rights to Further Distribute Source.
44*35786f68SRobert Mustacchi * Redistribution of source code of any substantial portion of the Covered
45*35786f68SRobert Mustacchi * Code or modification with rights to further distribute source must include
46*35786f68SRobert Mustacchi * the above Copyright Notice, the above License, this list of Conditions,
47*35786f68SRobert Mustacchi * and the following Disclaimer and Export Compliance provision. In addition,
48*35786f68SRobert Mustacchi * Licensee must cause all Covered Code to which Licensee contributes to
49*35786f68SRobert Mustacchi * contain a file documenting the changes Licensee made to create that Covered
50*35786f68SRobert Mustacchi * Code and the date of any change. Licensee must include in that file the
51*35786f68SRobert Mustacchi * documentation of any changes made by any predecessor Licensee. Licensee
52*35786f68SRobert Mustacchi * must include a prominent statement that the modification is derived,
53*35786f68SRobert Mustacchi * directly or indirectly, from Original Intel Code.
54*35786f68SRobert Mustacchi *
55*35786f68SRobert Mustacchi * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
56*35786f68SRobert Mustacchi * Redistribution of source code of any substantial portion of the Covered
57*35786f68SRobert Mustacchi * Code or modification without rights to further distribute source must
58*35786f68SRobert Mustacchi * include the following Disclaimer and Export Compliance provision in the
59*35786f68SRobert Mustacchi * documentation and/or other materials provided with distribution. In
60*35786f68SRobert Mustacchi * addition, Licensee may not authorize further sublicense of source of any
61*35786f68SRobert Mustacchi * portion of the Covered Code, and must include terms to the effect that the
62*35786f68SRobert Mustacchi * license from Licensee to its licensee is limited to the intellectual
63*35786f68SRobert Mustacchi * property embodied in the software Licensee provides to its licensee, and
64*35786f68SRobert Mustacchi * not to intellectual property embodied in modifications its licensee may
65*35786f68SRobert Mustacchi * make.
66*35786f68SRobert Mustacchi *
67*35786f68SRobert Mustacchi * 3.3. Redistribution of Executable. Redistribution in executable form of any
68*35786f68SRobert Mustacchi * substantial portion of the Covered Code or modification must reproduce the
69*35786f68SRobert Mustacchi * above Copyright Notice, and the following Disclaimer and Export Compliance
70*35786f68SRobert Mustacchi * provision in the documentation and/or other materials provided with the
71*35786f68SRobert Mustacchi * distribution.
72*35786f68SRobert Mustacchi *
73*35786f68SRobert Mustacchi * 3.4. Intel retains all right, title, and interest in and to the Original
74*35786f68SRobert Mustacchi * Intel Code.
75*35786f68SRobert Mustacchi *
76*35786f68SRobert Mustacchi * 3.5. Neither the name Intel nor any other trademark owned or controlled by
77*35786f68SRobert Mustacchi * Intel shall be used in advertising or otherwise to promote the sale, use or
78*35786f68SRobert Mustacchi * other dealings in products derived from or relating to the Covered Code
79*35786f68SRobert Mustacchi * without prior written authorization from Intel.
80*35786f68SRobert Mustacchi *
81*35786f68SRobert Mustacchi * 4. Disclaimer and Export Compliance
82*35786f68SRobert Mustacchi *
83*35786f68SRobert Mustacchi * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
84*35786f68SRobert Mustacchi * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
85*35786f68SRobert Mustacchi * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
86*35786f68SRobert Mustacchi * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
87*35786f68SRobert Mustacchi * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
88*35786f68SRobert Mustacchi * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
89*35786f68SRobert Mustacchi * PARTICULAR PURPOSE.
90*35786f68SRobert Mustacchi *
91*35786f68SRobert Mustacchi * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
92*35786f68SRobert Mustacchi * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
93*35786f68SRobert Mustacchi * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
94*35786f68SRobert Mustacchi * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
95*35786f68SRobert Mustacchi * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
96*35786f68SRobert Mustacchi * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
97*35786f68SRobert Mustacchi * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
98*35786f68SRobert Mustacchi * LIMITED REMEDY.
99*35786f68SRobert Mustacchi *
100*35786f68SRobert Mustacchi * 4.3. Licensee shall not export, either directly or indirectly, any of this
101*35786f68SRobert Mustacchi * software or system incorporating such software without first obtaining any
102*35786f68SRobert Mustacchi * required license or other approval from the U. S. Department of Commerce or
103*35786f68SRobert Mustacchi * any other agency or department of the United States Government. In the
104*35786f68SRobert Mustacchi * event Licensee exports any such software from the United States or
105*35786f68SRobert Mustacchi * re-exports any such software from a foreign destination, Licensee shall
106*35786f68SRobert Mustacchi * ensure that the distribution and export/re-export of the software is in
107*35786f68SRobert Mustacchi * compliance with all laws, regulations, orders, or other restrictions of the
108*35786f68SRobert Mustacchi * U.S. Export Administration Regulations. Licensee agrees that neither it nor
109*35786f68SRobert Mustacchi * any of its subsidiaries will export/re-export any technical data, process,
110*35786f68SRobert Mustacchi * software, or service, directly or indirectly, to any country for which the
111*35786f68SRobert Mustacchi * United States government or any agency thereof requires an export license,
112*35786f68SRobert Mustacchi * other governmental approval, or letter of assurance, without first obtaining
113*35786f68SRobert Mustacchi * such license, approval or letter.
114*35786f68SRobert Mustacchi *
115*35786f68SRobert Mustacchi *****************************************************************************
116*35786f68SRobert Mustacchi *
117*35786f68SRobert Mustacchi * Alternatively, you may choose to be licensed under the terms of the
118*35786f68SRobert Mustacchi * following license:
119*35786f68SRobert Mustacchi *
1207b1019a6SJerry Jelinek * Redistribution and use in source and binary forms, with or without
1217b1019a6SJerry Jelinek * modification, are permitted provided that the following conditions
1227b1019a6SJerry Jelinek * are met:
1237b1019a6SJerry Jelinek * 1. Redistributions of source code must retain the above copyright
1247b1019a6SJerry Jelinek * notice, this list of conditions, and the following disclaimer,
1257b1019a6SJerry Jelinek * without modification.
1267b1019a6SJerry Jelinek * 2. Redistributions in binary form must reproduce at minimum a disclaimer
1277b1019a6SJerry Jelinek * substantially similar to the "NO WARRANTY" disclaimer below
1287b1019a6SJerry Jelinek * ("Disclaimer") and any redistribution must be conditioned upon
1297b1019a6SJerry Jelinek * including a substantially similar Disclaimer requirement for further
1307b1019a6SJerry Jelinek * binary redistribution.
1317b1019a6SJerry Jelinek * 3. Neither the names of the above-listed copyright holders nor the names
1327b1019a6SJerry Jelinek * of any contributors may be used to endorse or promote products derived
1337b1019a6SJerry Jelinek * from this software without specific prior written permission.
1347b1019a6SJerry Jelinek *
1357b1019a6SJerry Jelinek * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1367b1019a6SJerry Jelinek * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
137*35786f68SRobert Mustacchi * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1387b1019a6SJerry Jelinek * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
139*35786f68SRobert Mustacchi * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
140*35786f68SRobert Mustacchi * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
141*35786f68SRobert Mustacchi * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
142*35786f68SRobert Mustacchi * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
143*35786f68SRobert Mustacchi * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
144*35786f68SRobert Mustacchi * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
145*35786f68SRobert Mustacchi * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
146*35786f68SRobert Mustacchi *
147*35786f68SRobert Mustacchi * Alternatively, you may choose to be licensed under the terms of the
148*35786f68SRobert Mustacchi * GNU General Public License ("GPL") version 2 as published by the Free
149*35786f68SRobert Mustacchi * Software Foundation.
150*35786f68SRobert Mustacchi *
151*35786f68SRobert Mustacchi *****************************************************************************/
1527b1019a6SJerry Jelinek
1537b1019a6SJerry Jelinek #include "acpi.h"
1547b1019a6SJerry Jelinek #include "accommon.h"
1557b1019a6SJerry Jelinek #include "acnamesp.h"
1567b1019a6SJerry Jelinek #include "acinterp.h"
1577b1019a6SJerry Jelinek #include "acpredef.h"
1587b1019a6SJerry Jelinek #include "amlresrc.h"
1597b1019a6SJerry Jelinek
1607b1019a6SJerry Jelinek #define _COMPONENT ACPI_NAMESPACE
1617b1019a6SJerry Jelinek ACPI_MODULE_NAME ("nsconvert")
1627b1019a6SJerry Jelinek
1637b1019a6SJerry Jelinek
1647b1019a6SJerry Jelinek /*******************************************************************************
1657b1019a6SJerry Jelinek *
1667b1019a6SJerry Jelinek * FUNCTION: AcpiNsConvertToInteger
1677b1019a6SJerry Jelinek *
1687b1019a6SJerry Jelinek * PARAMETERS: OriginalObject - Object to be converted
1697b1019a6SJerry Jelinek * ReturnObject - Where the new converted object is returned
1707b1019a6SJerry Jelinek *
1717b1019a6SJerry Jelinek * RETURN: Status. AE_OK if conversion was successful.
1727b1019a6SJerry Jelinek *
1737b1019a6SJerry Jelinek * DESCRIPTION: Attempt to convert a String/Buffer object to an Integer.
1747b1019a6SJerry Jelinek *
1757b1019a6SJerry Jelinek ******************************************************************************/
1767b1019a6SJerry Jelinek
1777b1019a6SJerry Jelinek ACPI_STATUS
AcpiNsConvertToInteger(ACPI_OPERAND_OBJECT * OriginalObject,ACPI_OPERAND_OBJECT ** ReturnObject)1787b1019a6SJerry Jelinek AcpiNsConvertToInteger (
1797b1019a6SJerry Jelinek ACPI_OPERAND_OBJECT *OriginalObject,
1807b1019a6SJerry Jelinek ACPI_OPERAND_OBJECT **ReturnObject)
1817b1019a6SJerry Jelinek {
1827b1019a6SJerry Jelinek ACPI_OPERAND_OBJECT *NewObject;
1837b1019a6SJerry Jelinek ACPI_STATUS Status;
1847b1019a6SJerry Jelinek UINT64 Value = 0;
1857b1019a6SJerry Jelinek UINT32 i;
1867b1019a6SJerry Jelinek
1877b1019a6SJerry Jelinek
1887b1019a6SJerry Jelinek switch (OriginalObject->Common.Type)
1897b1019a6SJerry Jelinek {
1907b1019a6SJerry Jelinek case ACPI_TYPE_STRING:
1917b1019a6SJerry Jelinek
1927b1019a6SJerry Jelinek /* String-to-Integer conversion */
1937b1019a6SJerry Jelinek
194*35786f68SRobert Mustacchi Status = AcpiUtStrtoul64 (OriginalObject->String.Pointer, &Value);
1957b1019a6SJerry Jelinek if (ACPI_FAILURE (Status))
1967b1019a6SJerry Jelinek {
1977b1019a6SJerry Jelinek return (Status);
1987b1019a6SJerry Jelinek }
1997b1019a6SJerry Jelinek break;
2007b1019a6SJerry Jelinek
2017b1019a6SJerry Jelinek case ACPI_TYPE_BUFFER:
2027b1019a6SJerry Jelinek
2037b1019a6SJerry Jelinek /* Buffer-to-Integer conversion. Max buffer size is 64 bits. */
2047b1019a6SJerry Jelinek
2057b1019a6SJerry Jelinek if (OriginalObject->Buffer.Length > 8)
2067b1019a6SJerry Jelinek {
2077b1019a6SJerry Jelinek return (AE_AML_OPERAND_TYPE);
2087b1019a6SJerry Jelinek }
2097b1019a6SJerry Jelinek
2107b1019a6SJerry Jelinek /* Extract each buffer byte to create the integer */
2117b1019a6SJerry Jelinek
2127b1019a6SJerry Jelinek for (i = 0; i < OriginalObject->Buffer.Length; i++)
2137b1019a6SJerry Jelinek {
2147b1019a6SJerry Jelinek Value |= ((UINT64)
2157b1019a6SJerry Jelinek OriginalObject->Buffer.Pointer[i] << (i * 8));
2167b1019a6SJerry Jelinek }
2177b1019a6SJerry Jelinek break;
2187b1019a6SJerry Jelinek
2197b1019a6SJerry Jelinek default:
2207b1019a6SJerry Jelinek
2217b1019a6SJerry Jelinek return (AE_AML_OPERAND_TYPE);
2227b1019a6SJerry Jelinek }
2237b1019a6SJerry Jelinek
2247b1019a6SJerry Jelinek NewObject = AcpiUtCreateIntegerObject (Value);
2257b1019a6SJerry Jelinek if (!NewObject)
2267b1019a6SJerry Jelinek {
2277b1019a6SJerry Jelinek return (AE_NO_MEMORY);
2287b1019a6SJerry Jelinek }
2297b1019a6SJerry Jelinek
2307b1019a6SJerry Jelinek *ReturnObject = NewObject;
2317b1019a6SJerry Jelinek return (AE_OK);
2327b1019a6SJerry Jelinek }
2337b1019a6SJerry Jelinek
2347b1019a6SJerry Jelinek
2357b1019a6SJerry Jelinek /*******************************************************************************
2367b1019a6SJerry Jelinek *
2377b1019a6SJerry Jelinek * FUNCTION: AcpiNsConvertToString
2387b1019a6SJerry Jelinek *
2397b1019a6SJerry Jelinek * PARAMETERS: OriginalObject - Object to be converted
2407b1019a6SJerry Jelinek * ReturnObject - Where the new converted object is returned
2417b1019a6SJerry Jelinek *
2427b1019a6SJerry Jelinek * RETURN: Status. AE_OK if conversion was successful.
2437b1019a6SJerry Jelinek *
2447b1019a6SJerry Jelinek * DESCRIPTION: Attempt to convert a Integer/Buffer object to a String.
2457b1019a6SJerry Jelinek *
2467b1019a6SJerry Jelinek ******************************************************************************/
2477b1019a6SJerry Jelinek
2487b1019a6SJerry Jelinek ACPI_STATUS
AcpiNsConvertToString(ACPI_OPERAND_OBJECT * OriginalObject,ACPI_OPERAND_OBJECT ** ReturnObject)2497b1019a6SJerry Jelinek AcpiNsConvertToString (
2507b1019a6SJerry Jelinek ACPI_OPERAND_OBJECT *OriginalObject,
2517b1019a6SJerry Jelinek ACPI_OPERAND_OBJECT **ReturnObject)
2527b1019a6SJerry Jelinek {
2537b1019a6SJerry Jelinek ACPI_OPERAND_OBJECT *NewObject;
2547b1019a6SJerry Jelinek ACPI_SIZE Length;
2557b1019a6SJerry Jelinek ACPI_STATUS Status;
2567b1019a6SJerry Jelinek
2577b1019a6SJerry Jelinek
2587b1019a6SJerry Jelinek switch (OriginalObject->Common.Type)
2597b1019a6SJerry Jelinek {
2607b1019a6SJerry Jelinek case ACPI_TYPE_INTEGER:
2617b1019a6SJerry Jelinek /*
2627b1019a6SJerry Jelinek * Integer-to-String conversion. Commonly, convert
2637b1019a6SJerry Jelinek * an integer of value 0 to a NULL string. The last element of
2647b1019a6SJerry Jelinek * _BIF and _BIX packages occasionally need this fix.
2657b1019a6SJerry Jelinek */
2667b1019a6SJerry Jelinek if (OriginalObject->Integer.Value == 0)
2677b1019a6SJerry Jelinek {
2687b1019a6SJerry Jelinek /* Allocate a new NULL string object */
2697b1019a6SJerry Jelinek
2707b1019a6SJerry Jelinek NewObject = AcpiUtCreateStringObject (0);
2717b1019a6SJerry Jelinek if (!NewObject)
2727b1019a6SJerry Jelinek {
2737b1019a6SJerry Jelinek return (AE_NO_MEMORY);
2747b1019a6SJerry Jelinek }
2757b1019a6SJerry Jelinek }
2767b1019a6SJerry Jelinek else
2777b1019a6SJerry Jelinek {
2787b1019a6SJerry Jelinek Status = AcpiExConvertToString (OriginalObject,
2797b1019a6SJerry Jelinek &NewObject, ACPI_IMPLICIT_CONVERT_HEX);
2807b1019a6SJerry Jelinek if (ACPI_FAILURE (Status))
2817b1019a6SJerry Jelinek {
2827b1019a6SJerry Jelinek return (Status);
2837b1019a6SJerry Jelinek }
2847b1019a6SJerry Jelinek }
2857b1019a6SJerry Jelinek break;
2867b1019a6SJerry Jelinek
2877b1019a6SJerry Jelinek case ACPI_TYPE_BUFFER:
2887b1019a6SJerry Jelinek /*
2897b1019a6SJerry Jelinek * Buffer-to-String conversion. Use a ToString
2907b1019a6SJerry Jelinek * conversion, no transform performed on the buffer data. The best
2917b1019a6SJerry Jelinek * example of this is the _BIF method, where the string data from
2927b1019a6SJerry Jelinek * the battery is often (incorrectly) returned as buffer object(s).
2937b1019a6SJerry Jelinek */
2947b1019a6SJerry Jelinek Length = 0;
2957b1019a6SJerry Jelinek while ((Length < OriginalObject->Buffer.Length) &&
2967b1019a6SJerry Jelinek (OriginalObject->Buffer.Pointer[Length]))
2977b1019a6SJerry Jelinek {
2987b1019a6SJerry Jelinek Length++;
2997b1019a6SJerry Jelinek }
3007b1019a6SJerry Jelinek
3017b1019a6SJerry Jelinek /* Allocate a new string object */
3027b1019a6SJerry Jelinek
3037b1019a6SJerry Jelinek NewObject = AcpiUtCreateStringObject (Length);
3047b1019a6SJerry Jelinek if (!NewObject)
3057b1019a6SJerry Jelinek {
3067b1019a6SJerry Jelinek return (AE_NO_MEMORY);
3077b1019a6SJerry Jelinek }
3087b1019a6SJerry Jelinek
3097b1019a6SJerry Jelinek /*
3107b1019a6SJerry Jelinek * Copy the raw buffer data with no transform. String is already NULL
3117b1019a6SJerry Jelinek * terminated at Length+1.
3127b1019a6SJerry Jelinek */
3137b1019a6SJerry Jelinek memcpy (NewObject->String.Pointer,
3147b1019a6SJerry Jelinek OriginalObject->Buffer.Pointer, Length);
3157b1019a6SJerry Jelinek break;
3167b1019a6SJerry Jelinek
3177b1019a6SJerry Jelinek default:
3187b1019a6SJerry Jelinek
3197b1019a6SJerry Jelinek return (AE_AML_OPERAND_TYPE);
3207b1019a6SJerry Jelinek }
3217b1019a6SJerry Jelinek
3227b1019a6SJerry Jelinek *ReturnObject = NewObject;
3237b1019a6SJerry Jelinek return (AE_OK);
3247b1019a6SJerry Jelinek }
3257b1019a6SJerry Jelinek
3267b1019a6SJerry Jelinek
3277b1019a6SJerry Jelinek /*******************************************************************************
3287b1019a6SJerry Jelinek *
3297b1019a6SJerry Jelinek * FUNCTION: AcpiNsConvertToBuffer
3307b1019a6SJerry Jelinek *
3317b1019a6SJerry Jelinek * PARAMETERS: OriginalObject - Object to be converted
3327b1019a6SJerry Jelinek * ReturnObject - Where the new converted object is returned
3337b1019a6SJerry Jelinek *
3347b1019a6SJerry Jelinek * RETURN: Status. AE_OK if conversion was successful.
3357b1019a6SJerry Jelinek *
3367b1019a6SJerry Jelinek * DESCRIPTION: Attempt to convert a Integer/String/Package object to a Buffer.
3377b1019a6SJerry Jelinek *
3387b1019a6SJerry Jelinek ******************************************************************************/
3397b1019a6SJerry Jelinek
3407b1019a6SJerry Jelinek ACPI_STATUS
AcpiNsConvertToBuffer(ACPI_OPERAND_OBJECT * OriginalObject,ACPI_OPERAND_OBJECT ** ReturnObject)3417b1019a6SJerry Jelinek AcpiNsConvertToBuffer (
3427b1019a6SJerry Jelinek ACPI_OPERAND_OBJECT *OriginalObject,
3437b1019a6SJerry Jelinek ACPI_OPERAND_OBJECT **ReturnObject)
3447b1019a6SJerry Jelinek {
3457b1019a6SJerry Jelinek ACPI_OPERAND_OBJECT *NewObject;
3467b1019a6SJerry Jelinek ACPI_STATUS Status;
3477b1019a6SJerry Jelinek ACPI_OPERAND_OBJECT **Elements;
3487b1019a6SJerry Jelinek UINT32 *DwordBuffer;
3497b1019a6SJerry Jelinek UINT32 Count;
3507b1019a6SJerry Jelinek UINT32 i;
3517b1019a6SJerry Jelinek
3527b1019a6SJerry Jelinek
3537b1019a6SJerry Jelinek switch (OriginalObject->Common.Type)
3547b1019a6SJerry Jelinek {
3557b1019a6SJerry Jelinek case ACPI_TYPE_INTEGER:
3567b1019a6SJerry Jelinek /*
3577b1019a6SJerry Jelinek * Integer-to-Buffer conversion.
3587b1019a6SJerry Jelinek * Convert the Integer to a packed-byte buffer. _MAT and other
3597b1019a6SJerry Jelinek * objects need this sometimes, if a read has been performed on a
3607b1019a6SJerry Jelinek * Field object that is less than or equal to the global integer
3617b1019a6SJerry Jelinek * size (32 or 64 bits).
3627b1019a6SJerry Jelinek */
3637b1019a6SJerry Jelinek Status = AcpiExConvertToBuffer (OriginalObject, &NewObject);
3647b1019a6SJerry Jelinek if (ACPI_FAILURE (Status))
3657b1019a6SJerry Jelinek {
3667b1019a6SJerry Jelinek return (Status);
3677b1019a6SJerry Jelinek }
3687b1019a6SJerry Jelinek break;
3697b1019a6SJerry Jelinek
3707b1019a6SJerry Jelinek case ACPI_TYPE_STRING:
3717b1019a6SJerry Jelinek
3727b1019a6SJerry Jelinek /* String-to-Buffer conversion. Simple data copy */
3737b1019a6SJerry Jelinek
3747b1019a6SJerry Jelinek NewObject = AcpiUtCreateBufferObject
3757b1019a6SJerry Jelinek (OriginalObject->String.Length);
3767b1019a6SJerry Jelinek if (!NewObject)
3777b1019a6SJerry Jelinek {
3787b1019a6SJerry Jelinek return (AE_NO_MEMORY);
3797b1019a6SJerry Jelinek }
3807b1019a6SJerry Jelinek
3817b1019a6SJerry Jelinek memcpy (NewObject->Buffer.Pointer,
3827b1019a6SJerry Jelinek OriginalObject->String.Pointer, OriginalObject->String.Length);
3837b1019a6SJerry Jelinek break;
3847b1019a6SJerry Jelinek
3857b1019a6SJerry Jelinek case ACPI_TYPE_PACKAGE:
3867b1019a6SJerry Jelinek /*
3877b1019a6SJerry Jelinek * This case is often seen for predefined names that must return a
3887b1019a6SJerry Jelinek * Buffer object with multiple DWORD integers within. For example,
3897b1019a6SJerry Jelinek * _FDE and _GTM. The Package can be converted to a Buffer.
3907b1019a6SJerry Jelinek */
3917b1019a6SJerry Jelinek
3927b1019a6SJerry Jelinek /* All elements of the Package must be integers */
3937b1019a6SJerry Jelinek
3947b1019a6SJerry Jelinek Elements = OriginalObject->Package.Elements;
3957b1019a6SJerry Jelinek Count = OriginalObject->Package.Count;
3967b1019a6SJerry Jelinek
3977b1019a6SJerry Jelinek for (i = 0; i < Count; i++)
3987b1019a6SJerry Jelinek {
3997b1019a6SJerry Jelinek if ((!*Elements) ||
4007b1019a6SJerry Jelinek ((*Elements)->Common.Type != ACPI_TYPE_INTEGER))
4017b1019a6SJerry Jelinek {
4027b1019a6SJerry Jelinek return (AE_AML_OPERAND_TYPE);
4037b1019a6SJerry Jelinek }
4047b1019a6SJerry Jelinek Elements++;
4057b1019a6SJerry Jelinek }
4067b1019a6SJerry Jelinek
4077b1019a6SJerry Jelinek /* Create the new buffer object to replace the Package */
4087b1019a6SJerry Jelinek
4097b1019a6SJerry Jelinek NewObject = AcpiUtCreateBufferObject (ACPI_MUL_4 (Count));
4107b1019a6SJerry Jelinek if (!NewObject)
4117b1019a6SJerry Jelinek {
4127b1019a6SJerry Jelinek return (AE_NO_MEMORY);
4137b1019a6SJerry Jelinek }
4147b1019a6SJerry Jelinek
4157b1019a6SJerry Jelinek /* Copy the package elements (integers) to the buffer as DWORDs */
4167b1019a6SJerry Jelinek
4177b1019a6SJerry Jelinek Elements = OriginalObject->Package.Elements;
4187b1019a6SJerry Jelinek DwordBuffer = ACPI_CAST_PTR (UINT32, NewObject->Buffer.Pointer);
4197b1019a6SJerry Jelinek
4207b1019a6SJerry Jelinek for (i = 0; i < Count; i++)
4217b1019a6SJerry Jelinek {
4227b1019a6SJerry Jelinek *DwordBuffer = (UINT32) (*Elements)->Integer.Value;
4237b1019a6SJerry Jelinek DwordBuffer++;
4247b1019a6SJerry Jelinek Elements++;
4257b1019a6SJerry Jelinek }
4267b1019a6SJerry Jelinek break;
4277b1019a6SJerry Jelinek
4287b1019a6SJerry Jelinek default:
4297b1019a6SJerry Jelinek
4307b1019a6SJerry Jelinek return (AE_AML_OPERAND_TYPE);
4317b1019a6SJerry Jelinek }
4327b1019a6SJerry Jelinek
4337b1019a6SJerry Jelinek *ReturnObject = NewObject;
4347b1019a6SJerry Jelinek return (AE_OK);
4357b1019a6SJerry Jelinek }
4367b1019a6SJerry Jelinek
4377b1019a6SJerry Jelinek
4387b1019a6SJerry Jelinek /*******************************************************************************
4397b1019a6SJerry Jelinek *
4407b1019a6SJerry Jelinek * FUNCTION: AcpiNsConvertToUnicode
4417b1019a6SJerry Jelinek *
4427b1019a6SJerry Jelinek * PARAMETERS: Scope - Namespace node for the method/object
4437b1019a6SJerry Jelinek * OriginalObject - ASCII String Object to be converted
4447b1019a6SJerry Jelinek * ReturnObject - Where the new converted object is returned
4457b1019a6SJerry Jelinek *
4467b1019a6SJerry Jelinek * RETURN: Status. AE_OK if conversion was successful.
4477b1019a6SJerry Jelinek *
4487b1019a6SJerry Jelinek * DESCRIPTION: Attempt to convert a String object to a Unicode string Buffer.
4497b1019a6SJerry Jelinek *
4507b1019a6SJerry Jelinek ******************************************************************************/
4517b1019a6SJerry Jelinek
4527b1019a6SJerry Jelinek ACPI_STATUS
AcpiNsConvertToUnicode(ACPI_NAMESPACE_NODE * Scope,ACPI_OPERAND_OBJECT * OriginalObject,ACPI_OPERAND_OBJECT ** ReturnObject)4537b1019a6SJerry Jelinek AcpiNsConvertToUnicode (
4547b1019a6SJerry Jelinek ACPI_NAMESPACE_NODE *Scope,
4557b1019a6SJerry Jelinek ACPI_OPERAND_OBJECT *OriginalObject,
4567b1019a6SJerry Jelinek ACPI_OPERAND_OBJECT **ReturnObject)
4577b1019a6SJerry Jelinek {
4587b1019a6SJerry Jelinek ACPI_OPERAND_OBJECT *NewObject;
4597b1019a6SJerry Jelinek char *AsciiString;
4607b1019a6SJerry Jelinek UINT16 *UnicodeBuffer;
4617b1019a6SJerry Jelinek UINT32 UnicodeLength;
4627b1019a6SJerry Jelinek UINT32 i;
4637b1019a6SJerry Jelinek
4647b1019a6SJerry Jelinek
4657b1019a6SJerry Jelinek if (!OriginalObject)
4667b1019a6SJerry Jelinek {
4677b1019a6SJerry Jelinek return (AE_OK);
4687b1019a6SJerry Jelinek }
4697b1019a6SJerry Jelinek
4707b1019a6SJerry Jelinek /* If a Buffer was returned, it must be at least two bytes long */
4717b1019a6SJerry Jelinek
4727b1019a6SJerry Jelinek if (OriginalObject->Common.Type == ACPI_TYPE_BUFFER)
4737b1019a6SJerry Jelinek {
4747b1019a6SJerry Jelinek if (OriginalObject->Buffer.Length < 2)
4757b1019a6SJerry Jelinek {
4767b1019a6SJerry Jelinek return (AE_AML_OPERAND_VALUE);
4777b1019a6SJerry Jelinek }
4787b1019a6SJerry Jelinek
4797b1019a6SJerry Jelinek *ReturnObject = NULL;
4807b1019a6SJerry Jelinek return (AE_OK);
4817b1019a6SJerry Jelinek }
4827b1019a6SJerry Jelinek
4837b1019a6SJerry Jelinek /*
4847b1019a6SJerry Jelinek * The original object is an ASCII string. Convert this string to
4857b1019a6SJerry Jelinek * a unicode buffer.
4867b1019a6SJerry Jelinek */
4877b1019a6SJerry Jelinek AsciiString = OriginalObject->String.Pointer;
4887b1019a6SJerry Jelinek UnicodeLength = (OriginalObject->String.Length * 2) + 2;
4897b1019a6SJerry Jelinek
4907b1019a6SJerry Jelinek /* Create a new buffer object for the Unicode data */
4917b1019a6SJerry Jelinek
4927b1019a6SJerry Jelinek NewObject = AcpiUtCreateBufferObject (UnicodeLength);
4937b1019a6SJerry Jelinek if (!NewObject)
4947b1019a6SJerry Jelinek {
4957b1019a6SJerry Jelinek return (AE_NO_MEMORY);
4967b1019a6SJerry Jelinek }
4977b1019a6SJerry Jelinek
4987b1019a6SJerry Jelinek UnicodeBuffer = ACPI_CAST_PTR (UINT16, NewObject->Buffer.Pointer);
4997b1019a6SJerry Jelinek
5007b1019a6SJerry Jelinek /* Convert ASCII to Unicode */
5017b1019a6SJerry Jelinek
5027b1019a6SJerry Jelinek for (i = 0; i < OriginalObject->String.Length; i++)
5037b1019a6SJerry Jelinek {
5047b1019a6SJerry Jelinek UnicodeBuffer[i] = (UINT16) AsciiString[i];
5057b1019a6SJerry Jelinek }
5067b1019a6SJerry Jelinek
5077b1019a6SJerry Jelinek *ReturnObject = NewObject;
5087b1019a6SJerry Jelinek return (AE_OK);
5097b1019a6SJerry Jelinek }
5107b1019a6SJerry Jelinek
5117b1019a6SJerry Jelinek
5127b1019a6SJerry Jelinek /*******************************************************************************
5137b1019a6SJerry Jelinek *
5147b1019a6SJerry Jelinek * FUNCTION: AcpiNsConvertToResource
5157b1019a6SJerry Jelinek *
5167b1019a6SJerry Jelinek * PARAMETERS: Scope - Namespace node for the method/object
5177b1019a6SJerry Jelinek * OriginalObject - Object to be converted
5187b1019a6SJerry Jelinek * ReturnObject - Where the new converted object is returned
5197b1019a6SJerry Jelinek *
5207b1019a6SJerry Jelinek * RETURN: Status. AE_OK if conversion was successful
5217b1019a6SJerry Jelinek *
5227b1019a6SJerry Jelinek * DESCRIPTION: Attempt to convert a Integer object to a ResourceTemplate
5237b1019a6SJerry Jelinek * Buffer.
5247b1019a6SJerry Jelinek *
5257b1019a6SJerry Jelinek ******************************************************************************/
5267b1019a6SJerry Jelinek
5277b1019a6SJerry Jelinek ACPI_STATUS
AcpiNsConvertToResource(ACPI_NAMESPACE_NODE * Scope,ACPI_OPERAND_OBJECT * OriginalObject,ACPI_OPERAND_OBJECT ** ReturnObject)5287b1019a6SJerry Jelinek AcpiNsConvertToResource (
5297b1019a6SJerry Jelinek ACPI_NAMESPACE_NODE *Scope,
5307b1019a6SJerry Jelinek ACPI_OPERAND_OBJECT *OriginalObject,
5317b1019a6SJerry Jelinek ACPI_OPERAND_OBJECT **ReturnObject)
5327b1019a6SJerry Jelinek {
5337b1019a6SJerry Jelinek ACPI_OPERAND_OBJECT *NewObject;
5347b1019a6SJerry Jelinek UINT8 *Buffer;
5357b1019a6SJerry Jelinek
5367b1019a6SJerry Jelinek
5377b1019a6SJerry Jelinek /*
5387b1019a6SJerry Jelinek * We can fix the following cases for an expected resource template:
5397b1019a6SJerry Jelinek * 1. No return value (interpreter slack mode is disabled)
5407b1019a6SJerry Jelinek * 2. A "Return (Zero)" statement
5417b1019a6SJerry Jelinek * 3. A "Return empty buffer" statement
5427b1019a6SJerry Jelinek *
5437b1019a6SJerry Jelinek * We will return a buffer containing a single EndTag
5447b1019a6SJerry Jelinek * resource descriptor.
5457b1019a6SJerry Jelinek */
5467b1019a6SJerry Jelinek if (OriginalObject)
5477b1019a6SJerry Jelinek {
5487b1019a6SJerry Jelinek switch (OriginalObject->Common.Type)
5497b1019a6SJerry Jelinek {
5507b1019a6SJerry Jelinek case ACPI_TYPE_INTEGER:
5517b1019a6SJerry Jelinek
5527b1019a6SJerry Jelinek /* We can only repair an Integer==0 */
5537b1019a6SJerry Jelinek
5547b1019a6SJerry Jelinek if (OriginalObject->Integer.Value)
5557b1019a6SJerry Jelinek {
5567b1019a6SJerry Jelinek return (AE_AML_OPERAND_TYPE);
5577b1019a6SJerry Jelinek }
5587b1019a6SJerry Jelinek break;
5597b1019a6SJerry Jelinek
5607b1019a6SJerry Jelinek case ACPI_TYPE_BUFFER:
5617b1019a6SJerry Jelinek
5627b1019a6SJerry Jelinek if (OriginalObject->Buffer.Length)
5637b1019a6SJerry Jelinek {
5647b1019a6SJerry Jelinek /* Additional checks can be added in the future */
5657b1019a6SJerry Jelinek
5667b1019a6SJerry Jelinek *ReturnObject = NULL;
5677b1019a6SJerry Jelinek return (AE_OK);
5687b1019a6SJerry Jelinek }
5697b1019a6SJerry Jelinek break;
5707b1019a6SJerry Jelinek
5717b1019a6SJerry Jelinek case ACPI_TYPE_STRING:
5727b1019a6SJerry Jelinek default:
5737b1019a6SJerry Jelinek
5747b1019a6SJerry Jelinek return (AE_AML_OPERAND_TYPE);
5757b1019a6SJerry Jelinek }
5767b1019a6SJerry Jelinek }
5777b1019a6SJerry Jelinek
5787b1019a6SJerry Jelinek /* Create the new buffer object for the resource descriptor */
5797b1019a6SJerry Jelinek
5807b1019a6SJerry Jelinek NewObject = AcpiUtCreateBufferObject (2);
5817b1019a6SJerry Jelinek if (!NewObject)
5827b1019a6SJerry Jelinek {
5837b1019a6SJerry Jelinek return (AE_NO_MEMORY);
5847b1019a6SJerry Jelinek }
5857b1019a6SJerry Jelinek
5867b1019a6SJerry Jelinek Buffer = ACPI_CAST_PTR (UINT8, NewObject->Buffer.Pointer);
5877b1019a6SJerry Jelinek
5887b1019a6SJerry Jelinek /* Initialize the Buffer with a single EndTag descriptor */
5897b1019a6SJerry Jelinek
5907b1019a6SJerry Jelinek Buffer[0] = (ACPI_RESOURCE_NAME_END_TAG | ASL_RDESC_END_TAG_SIZE);
5917b1019a6SJerry Jelinek Buffer[1] = 0x00;
5927b1019a6SJerry Jelinek
5937b1019a6SJerry Jelinek *ReturnObject = NewObject;
5947b1019a6SJerry Jelinek return (AE_OK);
5957b1019a6SJerry Jelinek }
5967b1019a6SJerry Jelinek
5977b1019a6SJerry Jelinek
5987b1019a6SJerry Jelinek /*******************************************************************************
5997b1019a6SJerry Jelinek *
6007b1019a6SJerry Jelinek * FUNCTION: AcpiNsConvertToReference
6017b1019a6SJerry Jelinek *
6027b1019a6SJerry Jelinek * PARAMETERS: Scope - Namespace node for the method/object
6037b1019a6SJerry Jelinek * OriginalObject - Object to be converted
6047b1019a6SJerry Jelinek * ReturnObject - Where the new converted object is returned
6057b1019a6SJerry Jelinek *
6067b1019a6SJerry Jelinek * RETURN: Status. AE_OK if conversion was successful
6077b1019a6SJerry Jelinek *
6087b1019a6SJerry Jelinek * DESCRIPTION: Attempt to convert a Integer object to a ObjectReference.
6097b1019a6SJerry Jelinek * Buffer.
6107b1019a6SJerry Jelinek *
6117b1019a6SJerry Jelinek ******************************************************************************/
6127b1019a6SJerry Jelinek
6137b1019a6SJerry Jelinek ACPI_STATUS
AcpiNsConvertToReference(ACPI_NAMESPACE_NODE * Scope,ACPI_OPERAND_OBJECT * OriginalObject,ACPI_OPERAND_OBJECT ** ReturnObject)6147b1019a6SJerry Jelinek AcpiNsConvertToReference (
6157b1019a6SJerry Jelinek ACPI_NAMESPACE_NODE *Scope,
6167b1019a6SJerry Jelinek ACPI_OPERAND_OBJECT *OriginalObject,
6177b1019a6SJerry Jelinek ACPI_OPERAND_OBJECT **ReturnObject)
6187b1019a6SJerry Jelinek {
6197b1019a6SJerry Jelinek ACPI_OPERAND_OBJECT *NewObject = NULL;
6207b1019a6SJerry Jelinek ACPI_STATUS Status;
6217b1019a6SJerry Jelinek ACPI_NAMESPACE_NODE *Node;
6227b1019a6SJerry Jelinek ACPI_GENERIC_STATE ScopeInfo;
6237b1019a6SJerry Jelinek char *Name;
6247b1019a6SJerry Jelinek
6257b1019a6SJerry Jelinek
6267b1019a6SJerry Jelinek ACPI_FUNCTION_NAME (NsConvertToReference);
6277b1019a6SJerry Jelinek
6287b1019a6SJerry Jelinek
6297b1019a6SJerry Jelinek /* Convert path into internal presentation */
6307b1019a6SJerry Jelinek
6317b1019a6SJerry Jelinek Status = AcpiNsInternalizeName (OriginalObject->String.Pointer, &Name);
6327b1019a6SJerry Jelinek if (ACPI_FAILURE (Status))
6337b1019a6SJerry Jelinek {
6347b1019a6SJerry Jelinek return_ACPI_STATUS (Status);
6357b1019a6SJerry Jelinek }
6367b1019a6SJerry Jelinek
6377b1019a6SJerry Jelinek /* Find the namespace node */
6387b1019a6SJerry Jelinek
6397b1019a6SJerry Jelinek ScopeInfo.Scope.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Scope);
6407b1019a6SJerry Jelinek Status = AcpiNsLookup (&ScopeInfo, Name,
6417b1019a6SJerry Jelinek ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
6427b1019a6SJerry Jelinek ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, NULL, &Node);
6437b1019a6SJerry Jelinek if (ACPI_FAILURE (Status))
6447b1019a6SJerry Jelinek {
6457b1019a6SJerry Jelinek /* Check if we are resolving a named reference within a package */
6467b1019a6SJerry Jelinek
647*35786f68SRobert Mustacchi ACPI_ERROR_NAMESPACE (&ScopeInfo,
648*35786f68SRobert Mustacchi OriginalObject->String.Pointer, Status);
6497b1019a6SJerry Jelinek goto ErrorExit;
6507b1019a6SJerry Jelinek }
6517b1019a6SJerry Jelinek
6527b1019a6SJerry Jelinek /* Create and init a new internal ACPI object */
6537b1019a6SJerry Jelinek
6547b1019a6SJerry Jelinek NewObject = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_REFERENCE);
6557b1019a6SJerry Jelinek if (!NewObject)
6567b1019a6SJerry Jelinek {
6577b1019a6SJerry Jelinek Status = AE_NO_MEMORY;
6587b1019a6SJerry Jelinek goto ErrorExit;
6597b1019a6SJerry Jelinek }
6607b1019a6SJerry Jelinek NewObject->Reference.Node = Node;
6617b1019a6SJerry Jelinek NewObject->Reference.Object = Node->Object;
6627b1019a6SJerry Jelinek NewObject->Reference.Class = ACPI_REFCLASS_NAME;
6637b1019a6SJerry Jelinek
6647b1019a6SJerry Jelinek /*
6657b1019a6SJerry Jelinek * Increase reference of the object if needed (the object is likely a
6667b1019a6SJerry Jelinek * null for device nodes).
6677b1019a6SJerry Jelinek */
6687b1019a6SJerry Jelinek AcpiUtAddReference (Node->Object);
6697b1019a6SJerry Jelinek
6707b1019a6SJerry Jelinek ErrorExit:
6717b1019a6SJerry Jelinek ACPI_FREE (Name);
6727b1019a6SJerry Jelinek *ReturnObject = NewObject;
6737b1019a6SJerry Jelinek return (AE_OK);
6747b1019a6SJerry Jelinek }
675