xref: /minix3/minix/drivers/power/acpi/dispatcher/dsargs.c (revision 29492bb71c7148a089a5afafa0c99409161218df)
1*29492bb7SDavid van Moolenbroek /******************************************************************************
2*29492bb7SDavid van Moolenbroek  *
3*29492bb7SDavid van Moolenbroek  * Module Name: dsargs - Support for execution of dynamic arguments for static
4*29492bb7SDavid van Moolenbroek  *                       objects (regions, fields, buffer fields, etc.)
5*29492bb7SDavid van Moolenbroek  *
6*29492bb7SDavid van Moolenbroek  *****************************************************************************/
7*29492bb7SDavid van Moolenbroek 
8*29492bb7SDavid van Moolenbroek /*
9*29492bb7SDavid van Moolenbroek  * Copyright (C) 2000 - 2014, Intel Corp.
10*29492bb7SDavid van Moolenbroek  * All rights reserved.
11*29492bb7SDavid van Moolenbroek  *
12*29492bb7SDavid van Moolenbroek  * Redistribution and use in source and binary forms, with or without
13*29492bb7SDavid van Moolenbroek  * modification, are permitted provided that the following conditions
14*29492bb7SDavid van Moolenbroek  * are met:
15*29492bb7SDavid van Moolenbroek  * 1. Redistributions of source code must retain the above copyright
16*29492bb7SDavid van Moolenbroek  *    notice, this list of conditions, and the following disclaimer,
17*29492bb7SDavid van Moolenbroek  *    without modification.
18*29492bb7SDavid van Moolenbroek  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
19*29492bb7SDavid van Moolenbroek  *    substantially similar to the "NO WARRANTY" disclaimer below
20*29492bb7SDavid van Moolenbroek  *    ("Disclaimer") and any redistribution must be conditioned upon
21*29492bb7SDavid van Moolenbroek  *    including a substantially similar Disclaimer requirement for further
22*29492bb7SDavid van Moolenbroek  *    binary redistribution.
23*29492bb7SDavid van Moolenbroek  * 3. Neither the names of the above-listed copyright holders nor the names
24*29492bb7SDavid van Moolenbroek  *    of any contributors may be used to endorse or promote products derived
25*29492bb7SDavid van Moolenbroek  *    from this software without specific prior written permission.
26*29492bb7SDavid van Moolenbroek  *
27*29492bb7SDavid van Moolenbroek  * Alternatively, this software may be distributed under the terms of the
28*29492bb7SDavid van Moolenbroek  * GNU General Public License ("GPL") version 2 as published by the Free
29*29492bb7SDavid van Moolenbroek  * Software Foundation.
30*29492bb7SDavid van Moolenbroek  *
31*29492bb7SDavid van Moolenbroek  * NO WARRANTY
32*29492bb7SDavid van Moolenbroek  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
33*29492bb7SDavid van Moolenbroek  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
34*29492bb7SDavid van Moolenbroek  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
35*29492bb7SDavid van Moolenbroek  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
36*29492bb7SDavid van Moolenbroek  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37*29492bb7SDavid van Moolenbroek  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
38*29492bb7SDavid van Moolenbroek  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
39*29492bb7SDavid van Moolenbroek  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
40*29492bb7SDavid van Moolenbroek  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
41*29492bb7SDavid van Moolenbroek  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
42*29492bb7SDavid van Moolenbroek  * POSSIBILITY OF SUCH DAMAGES.
43*29492bb7SDavid van Moolenbroek  */
44*29492bb7SDavid van Moolenbroek 
45*29492bb7SDavid van Moolenbroek #include "acpi.h"
46*29492bb7SDavid van Moolenbroek #include "accommon.h"
47*29492bb7SDavid van Moolenbroek #include "acparser.h"
48*29492bb7SDavid van Moolenbroek #include "amlcode.h"
49*29492bb7SDavid van Moolenbroek #include "acdispat.h"
50*29492bb7SDavid van Moolenbroek #include "acnamesp.h"
51*29492bb7SDavid van Moolenbroek 
52*29492bb7SDavid van Moolenbroek #define _COMPONENT          ACPI_DISPATCHER
53*29492bb7SDavid van Moolenbroek         ACPI_MODULE_NAME    ("dsargs")
54*29492bb7SDavid van Moolenbroek 
55*29492bb7SDavid van Moolenbroek /* Local prototypes */
56*29492bb7SDavid van Moolenbroek 
57*29492bb7SDavid van Moolenbroek static ACPI_STATUS
58*29492bb7SDavid van Moolenbroek AcpiDsExecuteArguments (
59*29492bb7SDavid van Moolenbroek     ACPI_NAMESPACE_NODE     *Node,
60*29492bb7SDavid van Moolenbroek     ACPI_NAMESPACE_NODE     *ScopeNode,
61*29492bb7SDavid van Moolenbroek     UINT32                  AmlLength,
62*29492bb7SDavid van Moolenbroek     UINT8                   *AmlStart);
63*29492bb7SDavid van Moolenbroek 
64*29492bb7SDavid van Moolenbroek 
65*29492bb7SDavid van Moolenbroek /*******************************************************************************
66*29492bb7SDavid van Moolenbroek  *
67*29492bb7SDavid van Moolenbroek  * FUNCTION:    AcpiDsExecuteArguments
68*29492bb7SDavid van Moolenbroek  *
69*29492bb7SDavid van Moolenbroek  * PARAMETERS:  Node                - Object NS node
70*29492bb7SDavid van Moolenbroek  *              ScopeNode           - Parent NS node
71*29492bb7SDavid van Moolenbroek  *              AmlLength           - Length of executable AML
72*29492bb7SDavid van Moolenbroek  *              AmlStart            - Pointer to the AML
73*29492bb7SDavid van Moolenbroek  *
74*29492bb7SDavid van Moolenbroek  * RETURN:      Status.
75*29492bb7SDavid van Moolenbroek  *
76*29492bb7SDavid van Moolenbroek  * DESCRIPTION: Late (deferred) execution of region or field arguments
77*29492bb7SDavid van Moolenbroek  *
78*29492bb7SDavid van Moolenbroek  ******************************************************************************/
79*29492bb7SDavid van Moolenbroek 
80*29492bb7SDavid van Moolenbroek static ACPI_STATUS
AcpiDsExecuteArguments(ACPI_NAMESPACE_NODE * Node,ACPI_NAMESPACE_NODE * ScopeNode,UINT32 AmlLength,UINT8 * AmlStart)81*29492bb7SDavid van Moolenbroek AcpiDsExecuteArguments (
82*29492bb7SDavid van Moolenbroek     ACPI_NAMESPACE_NODE     *Node,
83*29492bb7SDavid van Moolenbroek     ACPI_NAMESPACE_NODE     *ScopeNode,
84*29492bb7SDavid van Moolenbroek     UINT32                  AmlLength,
85*29492bb7SDavid van Moolenbroek     UINT8                   *AmlStart)
86*29492bb7SDavid van Moolenbroek {
87*29492bb7SDavid van Moolenbroek     ACPI_STATUS             Status;
88*29492bb7SDavid van Moolenbroek     ACPI_PARSE_OBJECT       *Op;
89*29492bb7SDavid van Moolenbroek     ACPI_WALK_STATE         *WalkState;
90*29492bb7SDavid van Moolenbroek 
91*29492bb7SDavid van Moolenbroek 
92*29492bb7SDavid van Moolenbroek     ACPI_FUNCTION_TRACE (DsExecuteArguments);
93*29492bb7SDavid van Moolenbroek 
94*29492bb7SDavid van Moolenbroek 
95*29492bb7SDavid van Moolenbroek     /* Allocate a new parser op to be the root of the parsed tree */
96*29492bb7SDavid van Moolenbroek 
97*29492bb7SDavid van Moolenbroek     Op = AcpiPsAllocOp (AML_INT_EVAL_SUBTREE_OP);
98*29492bb7SDavid van Moolenbroek     if (!Op)
99*29492bb7SDavid van Moolenbroek     {
100*29492bb7SDavid van Moolenbroek         return_ACPI_STATUS (AE_NO_MEMORY);
101*29492bb7SDavid van Moolenbroek     }
102*29492bb7SDavid van Moolenbroek 
103*29492bb7SDavid van Moolenbroek     /* Save the Node for use in AcpiPsParseAml */
104*29492bb7SDavid van Moolenbroek 
105*29492bb7SDavid van Moolenbroek     Op->Common.Node = ScopeNode;
106*29492bb7SDavid van Moolenbroek 
107*29492bb7SDavid van Moolenbroek     /* Create and initialize a new parser state */
108*29492bb7SDavid van Moolenbroek 
109*29492bb7SDavid van Moolenbroek     WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
110*29492bb7SDavid van Moolenbroek     if (!WalkState)
111*29492bb7SDavid van Moolenbroek     {
112*29492bb7SDavid van Moolenbroek         Status = AE_NO_MEMORY;
113*29492bb7SDavid van Moolenbroek         goto Cleanup;
114*29492bb7SDavid van Moolenbroek     }
115*29492bb7SDavid van Moolenbroek 
116*29492bb7SDavid van Moolenbroek     Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, AmlStart,
117*29492bb7SDavid van Moolenbroek                     AmlLength, NULL, ACPI_IMODE_LOAD_PASS1);
118*29492bb7SDavid van Moolenbroek     if (ACPI_FAILURE (Status))
119*29492bb7SDavid van Moolenbroek     {
120*29492bb7SDavid van Moolenbroek         AcpiDsDeleteWalkState (WalkState);
121*29492bb7SDavid van Moolenbroek         goto Cleanup;
122*29492bb7SDavid van Moolenbroek     }
123*29492bb7SDavid van Moolenbroek 
124*29492bb7SDavid van Moolenbroek     /* Mark this parse as a deferred opcode */
125*29492bb7SDavid van Moolenbroek 
126*29492bb7SDavid van Moolenbroek     WalkState->ParseFlags = ACPI_PARSE_DEFERRED_OP;
127*29492bb7SDavid van Moolenbroek     WalkState->DeferredNode = Node;
128*29492bb7SDavid van Moolenbroek 
129*29492bb7SDavid van Moolenbroek     /* Pass1: Parse the entire declaration */
130*29492bb7SDavid van Moolenbroek 
131*29492bb7SDavid van Moolenbroek     Status = AcpiPsParseAml (WalkState);
132*29492bb7SDavid van Moolenbroek     if (ACPI_FAILURE (Status))
133*29492bb7SDavid van Moolenbroek     {
134*29492bb7SDavid van Moolenbroek         goto Cleanup;
135*29492bb7SDavid van Moolenbroek     }
136*29492bb7SDavid van Moolenbroek 
137*29492bb7SDavid van Moolenbroek     /* Get and init the Op created above */
138*29492bb7SDavid van Moolenbroek 
139*29492bb7SDavid van Moolenbroek     Op->Common.Node = Node;
140*29492bb7SDavid van Moolenbroek     AcpiPsDeleteParseTree (Op);
141*29492bb7SDavid van Moolenbroek 
142*29492bb7SDavid van Moolenbroek     /* Evaluate the deferred arguments */
143*29492bb7SDavid van Moolenbroek 
144*29492bb7SDavid van Moolenbroek     Op = AcpiPsAllocOp (AML_INT_EVAL_SUBTREE_OP);
145*29492bb7SDavid van Moolenbroek     if (!Op)
146*29492bb7SDavid van Moolenbroek     {
147*29492bb7SDavid van Moolenbroek         return_ACPI_STATUS (AE_NO_MEMORY);
148*29492bb7SDavid van Moolenbroek     }
149*29492bb7SDavid van Moolenbroek 
150*29492bb7SDavid van Moolenbroek     Op->Common.Node = ScopeNode;
151*29492bb7SDavid van Moolenbroek 
152*29492bb7SDavid van Moolenbroek     /* Create and initialize a new parser state */
153*29492bb7SDavid van Moolenbroek 
154*29492bb7SDavid van Moolenbroek     WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
155*29492bb7SDavid van Moolenbroek     if (!WalkState)
156*29492bb7SDavid van Moolenbroek     {
157*29492bb7SDavid van Moolenbroek         Status = AE_NO_MEMORY;
158*29492bb7SDavid van Moolenbroek         goto Cleanup;
159*29492bb7SDavid van Moolenbroek     }
160*29492bb7SDavid van Moolenbroek 
161*29492bb7SDavid van Moolenbroek     /* Execute the opcode and arguments */
162*29492bb7SDavid van Moolenbroek 
163*29492bb7SDavid van Moolenbroek     Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, AmlStart,
164*29492bb7SDavid van Moolenbroek                     AmlLength, NULL, ACPI_IMODE_EXECUTE);
165*29492bb7SDavid van Moolenbroek     if (ACPI_FAILURE (Status))
166*29492bb7SDavid van Moolenbroek     {
167*29492bb7SDavid van Moolenbroek         AcpiDsDeleteWalkState (WalkState);
168*29492bb7SDavid van Moolenbroek         goto Cleanup;
169*29492bb7SDavid van Moolenbroek     }
170*29492bb7SDavid van Moolenbroek 
171*29492bb7SDavid van Moolenbroek     /* Mark this execution as a deferred opcode */
172*29492bb7SDavid van Moolenbroek 
173*29492bb7SDavid van Moolenbroek     WalkState->DeferredNode = Node;
174*29492bb7SDavid van Moolenbroek     Status = AcpiPsParseAml (WalkState);
175*29492bb7SDavid van Moolenbroek 
176*29492bb7SDavid van Moolenbroek Cleanup:
177*29492bb7SDavid van Moolenbroek     AcpiPsDeleteParseTree (Op);
178*29492bb7SDavid van Moolenbroek     return_ACPI_STATUS (Status);
179*29492bb7SDavid van Moolenbroek }
180*29492bb7SDavid van Moolenbroek 
181*29492bb7SDavid van Moolenbroek 
182*29492bb7SDavid van Moolenbroek /*******************************************************************************
183*29492bb7SDavid van Moolenbroek  *
184*29492bb7SDavid van Moolenbroek  * FUNCTION:    AcpiDsGetBufferFieldArguments
185*29492bb7SDavid van Moolenbroek  *
186*29492bb7SDavid van Moolenbroek  * PARAMETERS:  ObjDesc         - A valid BufferField object
187*29492bb7SDavid van Moolenbroek  *
188*29492bb7SDavid van Moolenbroek  * RETURN:      Status.
189*29492bb7SDavid van Moolenbroek  *
190*29492bb7SDavid van Moolenbroek  * DESCRIPTION: Get BufferField Buffer and Index. This implements the late
191*29492bb7SDavid van Moolenbroek  *              evaluation of these field attributes.
192*29492bb7SDavid van Moolenbroek  *
193*29492bb7SDavid van Moolenbroek  ******************************************************************************/
194*29492bb7SDavid van Moolenbroek 
195*29492bb7SDavid van Moolenbroek ACPI_STATUS
AcpiDsGetBufferFieldArguments(ACPI_OPERAND_OBJECT * ObjDesc)196*29492bb7SDavid van Moolenbroek AcpiDsGetBufferFieldArguments (
197*29492bb7SDavid van Moolenbroek     ACPI_OPERAND_OBJECT     *ObjDesc)
198*29492bb7SDavid van Moolenbroek {
199*29492bb7SDavid van Moolenbroek     ACPI_OPERAND_OBJECT     *ExtraDesc;
200*29492bb7SDavid van Moolenbroek     ACPI_NAMESPACE_NODE     *Node;
201*29492bb7SDavid van Moolenbroek     ACPI_STATUS             Status;
202*29492bb7SDavid van Moolenbroek 
203*29492bb7SDavid van Moolenbroek 
204*29492bb7SDavid van Moolenbroek     ACPI_FUNCTION_TRACE_PTR (DsGetBufferFieldArguments, ObjDesc);
205*29492bb7SDavid van Moolenbroek 
206*29492bb7SDavid van Moolenbroek 
207*29492bb7SDavid van Moolenbroek     if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
208*29492bb7SDavid van Moolenbroek     {
209*29492bb7SDavid van Moolenbroek         return_ACPI_STATUS (AE_OK);
210*29492bb7SDavid van Moolenbroek     }
211*29492bb7SDavid van Moolenbroek 
212*29492bb7SDavid van Moolenbroek     /* Get the AML pointer (method object) and BufferField node */
213*29492bb7SDavid van Moolenbroek 
214*29492bb7SDavid van Moolenbroek     ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
215*29492bb7SDavid van Moolenbroek     Node = ObjDesc->BufferField.Node;
216*29492bb7SDavid van Moolenbroek 
217*29492bb7SDavid van Moolenbroek     ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_BUFFER_FIELD,
218*29492bb7SDavid van Moolenbroek         Node, NULL));
219*29492bb7SDavid van Moolenbroek 
220*29492bb7SDavid van Moolenbroek     ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BufferField Arg Init\n",
221*29492bb7SDavid van Moolenbroek         AcpiUtGetNodeName (Node)));
222*29492bb7SDavid van Moolenbroek 
223*29492bb7SDavid van Moolenbroek     /* Execute the AML code for the TermArg arguments */
224*29492bb7SDavid van Moolenbroek 
225*29492bb7SDavid van Moolenbroek     Status = AcpiDsExecuteArguments (Node, Node->Parent,
226*29492bb7SDavid van Moolenbroek                 ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
227*29492bb7SDavid van Moolenbroek     return_ACPI_STATUS (Status);
228*29492bb7SDavid van Moolenbroek }
229*29492bb7SDavid van Moolenbroek 
230*29492bb7SDavid van Moolenbroek 
231*29492bb7SDavid van Moolenbroek /*******************************************************************************
232*29492bb7SDavid van Moolenbroek  *
233*29492bb7SDavid van Moolenbroek  * FUNCTION:    AcpiDsGetBankFieldArguments
234*29492bb7SDavid van Moolenbroek  *
235*29492bb7SDavid van Moolenbroek  * PARAMETERS:  ObjDesc         - A valid BankField object
236*29492bb7SDavid van Moolenbroek  *
237*29492bb7SDavid van Moolenbroek  * RETURN:      Status.
238*29492bb7SDavid van Moolenbroek  *
239*29492bb7SDavid van Moolenbroek  * DESCRIPTION: Get BankField BankValue. This implements the late
240*29492bb7SDavid van Moolenbroek  *              evaluation of these field attributes.
241*29492bb7SDavid van Moolenbroek  *
242*29492bb7SDavid van Moolenbroek  ******************************************************************************/
243*29492bb7SDavid van Moolenbroek 
244*29492bb7SDavid van Moolenbroek ACPI_STATUS
AcpiDsGetBankFieldArguments(ACPI_OPERAND_OBJECT * ObjDesc)245*29492bb7SDavid van Moolenbroek AcpiDsGetBankFieldArguments (
246*29492bb7SDavid van Moolenbroek     ACPI_OPERAND_OBJECT     *ObjDesc)
247*29492bb7SDavid van Moolenbroek {
248*29492bb7SDavid van Moolenbroek     ACPI_OPERAND_OBJECT     *ExtraDesc;
249*29492bb7SDavid van Moolenbroek     ACPI_NAMESPACE_NODE     *Node;
250*29492bb7SDavid van Moolenbroek     ACPI_STATUS             Status;
251*29492bb7SDavid van Moolenbroek 
252*29492bb7SDavid van Moolenbroek 
253*29492bb7SDavid van Moolenbroek     ACPI_FUNCTION_TRACE_PTR (DsGetBankFieldArguments, ObjDesc);
254*29492bb7SDavid van Moolenbroek 
255*29492bb7SDavid van Moolenbroek 
256*29492bb7SDavid van Moolenbroek     if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
257*29492bb7SDavid van Moolenbroek     {
258*29492bb7SDavid van Moolenbroek         return_ACPI_STATUS (AE_OK);
259*29492bb7SDavid van Moolenbroek     }
260*29492bb7SDavid van Moolenbroek 
261*29492bb7SDavid van Moolenbroek     /* Get the AML pointer (method object) and BankField node */
262*29492bb7SDavid van Moolenbroek 
263*29492bb7SDavid van Moolenbroek     ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
264*29492bb7SDavid van Moolenbroek     Node = ObjDesc->BankField.Node;
265*29492bb7SDavid van Moolenbroek 
266*29492bb7SDavid van Moolenbroek     ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_LOCAL_BANK_FIELD,
267*29492bb7SDavid van Moolenbroek         Node, NULL));
268*29492bb7SDavid van Moolenbroek 
269*29492bb7SDavid van Moolenbroek     ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BankField Arg Init\n",
270*29492bb7SDavid van Moolenbroek         AcpiUtGetNodeName (Node)));
271*29492bb7SDavid van Moolenbroek 
272*29492bb7SDavid van Moolenbroek     /* Execute the AML code for the TermArg arguments */
273*29492bb7SDavid van Moolenbroek 
274*29492bb7SDavid van Moolenbroek     Status = AcpiDsExecuteArguments (Node, Node->Parent,
275*29492bb7SDavid van Moolenbroek                 ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
276*29492bb7SDavid van Moolenbroek     return_ACPI_STATUS (Status);
277*29492bb7SDavid van Moolenbroek }
278*29492bb7SDavid van Moolenbroek 
279*29492bb7SDavid van Moolenbroek 
280*29492bb7SDavid van Moolenbroek /*******************************************************************************
281*29492bb7SDavid van Moolenbroek  *
282*29492bb7SDavid van Moolenbroek  * FUNCTION:    AcpiDsGetBufferArguments
283*29492bb7SDavid van Moolenbroek  *
284*29492bb7SDavid van Moolenbroek  * PARAMETERS:  ObjDesc         - A valid Buffer object
285*29492bb7SDavid van Moolenbroek  *
286*29492bb7SDavid van Moolenbroek  * RETURN:      Status.
287*29492bb7SDavid van Moolenbroek  *
288*29492bb7SDavid van Moolenbroek  * DESCRIPTION: Get Buffer length and initializer byte list. This implements
289*29492bb7SDavid van Moolenbroek  *              the late evaluation of these attributes.
290*29492bb7SDavid van Moolenbroek  *
291*29492bb7SDavid van Moolenbroek  ******************************************************************************/
292*29492bb7SDavid van Moolenbroek 
293*29492bb7SDavid van Moolenbroek ACPI_STATUS
AcpiDsGetBufferArguments(ACPI_OPERAND_OBJECT * ObjDesc)294*29492bb7SDavid van Moolenbroek AcpiDsGetBufferArguments (
295*29492bb7SDavid van Moolenbroek     ACPI_OPERAND_OBJECT     *ObjDesc)
296*29492bb7SDavid van Moolenbroek {
297*29492bb7SDavid van Moolenbroek     ACPI_NAMESPACE_NODE     *Node;
298*29492bb7SDavid van Moolenbroek     ACPI_STATUS             Status;
299*29492bb7SDavid van Moolenbroek 
300*29492bb7SDavid van Moolenbroek 
301*29492bb7SDavid van Moolenbroek     ACPI_FUNCTION_TRACE_PTR (DsGetBufferArguments, ObjDesc);
302*29492bb7SDavid van Moolenbroek 
303*29492bb7SDavid van Moolenbroek 
304*29492bb7SDavid van Moolenbroek     if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
305*29492bb7SDavid van Moolenbroek     {
306*29492bb7SDavid van Moolenbroek         return_ACPI_STATUS (AE_OK);
307*29492bb7SDavid van Moolenbroek     }
308*29492bb7SDavid van Moolenbroek 
309*29492bb7SDavid van Moolenbroek     /* Get the Buffer node */
310*29492bb7SDavid van Moolenbroek 
311*29492bb7SDavid van Moolenbroek     Node = ObjDesc->Buffer.Node;
312*29492bb7SDavid van Moolenbroek     if (!Node)
313*29492bb7SDavid van Moolenbroek     {
314*29492bb7SDavid van Moolenbroek         ACPI_ERROR ((AE_INFO,
315*29492bb7SDavid van Moolenbroek             "No pointer back to namespace node in buffer object %p", ObjDesc));
316*29492bb7SDavid van Moolenbroek         return_ACPI_STATUS (AE_AML_INTERNAL);
317*29492bb7SDavid van Moolenbroek     }
318*29492bb7SDavid van Moolenbroek 
319*29492bb7SDavid van Moolenbroek     ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Buffer Arg Init\n"));
320*29492bb7SDavid van Moolenbroek 
321*29492bb7SDavid van Moolenbroek     /* Execute the AML code for the TermArg arguments */
322*29492bb7SDavid van Moolenbroek 
323*29492bb7SDavid van Moolenbroek     Status = AcpiDsExecuteArguments (Node, Node,
324*29492bb7SDavid van Moolenbroek                 ObjDesc->Buffer.AmlLength, ObjDesc->Buffer.AmlStart);
325*29492bb7SDavid van Moolenbroek     return_ACPI_STATUS (Status);
326*29492bb7SDavid van Moolenbroek }
327*29492bb7SDavid van Moolenbroek 
328*29492bb7SDavid van Moolenbroek 
329*29492bb7SDavid van Moolenbroek /*******************************************************************************
330*29492bb7SDavid van Moolenbroek  *
331*29492bb7SDavid van Moolenbroek  * FUNCTION:    AcpiDsGetPackageArguments
332*29492bb7SDavid van Moolenbroek  *
333*29492bb7SDavid van Moolenbroek  * PARAMETERS:  ObjDesc         - A valid Package object
334*29492bb7SDavid van Moolenbroek  *
335*29492bb7SDavid van Moolenbroek  * RETURN:      Status.
336*29492bb7SDavid van Moolenbroek  *
337*29492bb7SDavid van Moolenbroek  * DESCRIPTION: Get Package length and initializer byte list. This implements
338*29492bb7SDavid van Moolenbroek  *              the late evaluation of these attributes.
339*29492bb7SDavid van Moolenbroek  *
340*29492bb7SDavid van Moolenbroek  ******************************************************************************/
341*29492bb7SDavid van Moolenbroek 
342*29492bb7SDavid van Moolenbroek ACPI_STATUS
AcpiDsGetPackageArguments(ACPI_OPERAND_OBJECT * ObjDesc)343*29492bb7SDavid van Moolenbroek AcpiDsGetPackageArguments (
344*29492bb7SDavid van Moolenbroek     ACPI_OPERAND_OBJECT     *ObjDesc)
345*29492bb7SDavid van Moolenbroek {
346*29492bb7SDavid van Moolenbroek     ACPI_NAMESPACE_NODE     *Node;
347*29492bb7SDavid van Moolenbroek     ACPI_STATUS             Status;
348*29492bb7SDavid van Moolenbroek 
349*29492bb7SDavid van Moolenbroek 
350*29492bb7SDavid van Moolenbroek     ACPI_FUNCTION_TRACE_PTR (DsGetPackageArguments, ObjDesc);
351*29492bb7SDavid van Moolenbroek 
352*29492bb7SDavid van Moolenbroek 
353*29492bb7SDavid van Moolenbroek     if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
354*29492bb7SDavid van Moolenbroek     {
355*29492bb7SDavid van Moolenbroek         return_ACPI_STATUS (AE_OK);
356*29492bb7SDavid van Moolenbroek     }
357*29492bb7SDavid van Moolenbroek 
358*29492bb7SDavid van Moolenbroek     /* Get the Package node */
359*29492bb7SDavid van Moolenbroek 
360*29492bb7SDavid van Moolenbroek     Node = ObjDesc->Package.Node;
361*29492bb7SDavid van Moolenbroek     if (!Node)
362*29492bb7SDavid van Moolenbroek     {
363*29492bb7SDavid van Moolenbroek         ACPI_ERROR ((AE_INFO,
364*29492bb7SDavid van Moolenbroek             "No pointer back to namespace node in package %p", ObjDesc));
365*29492bb7SDavid van Moolenbroek         return_ACPI_STATUS (AE_AML_INTERNAL);
366*29492bb7SDavid van Moolenbroek     }
367*29492bb7SDavid van Moolenbroek 
368*29492bb7SDavid van Moolenbroek     ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Package Arg Init\n"));
369*29492bb7SDavid van Moolenbroek 
370*29492bb7SDavid van Moolenbroek     /* Execute the AML code for the TermArg arguments */
371*29492bb7SDavid van Moolenbroek 
372*29492bb7SDavid van Moolenbroek     Status = AcpiDsExecuteArguments (Node, Node,
373*29492bb7SDavid van Moolenbroek                 ObjDesc->Package.AmlLength, ObjDesc->Package.AmlStart);
374*29492bb7SDavid van Moolenbroek     return_ACPI_STATUS (Status);
375*29492bb7SDavid van Moolenbroek }
376*29492bb7SDavid van Moolenbroek 
377*29492bb7SDavid van Moolenbroek 
378*29492bb7SDavid van Moolenbroek /*******************************************************************************
379*29492bb7SDavid van Moolenbroek  *
380*29492bb7SDavid van Moolenbroek  * FUNCTION:    AcpiDsGetRegionArguments
381*29492bb7SDavid van Moolenbroek  *
382*29492bb7SDavid van Moolenbroek  * PARAMETERS:  ObjDesc         - A valid region object
383*29492bb7SDavid van Moolenbroek  *
384*29492bb7SDavid van Moolenbroek  * RETURN:      Status.
385*29492bb7SDavid van Moolenbroek  *
386*29492bb7SDavid van Moolenbroek  * DESCRIPTION: Get region address and length. This implements the late
387*29492bb7SDavid van Moolenbroek  *              evaluation of these region attributes.
388*29492bb7SDavid van Moolenbroek  *
389*29492bb7SDavid van Moolenbroek  ******************************************************************************/
390*29492bb7SDavid van Moolenbroek 
391*29492bb7SDavid van Moolenbroek ACPI_STATUS
AcpiDsGetRegionArguments(ACPI_OPERAND_OBJECT * ObjDesc)392*29492bb7SDavid van Moolenbroek AcpiDsGetRegionArguments (
393*29492bb7SDavid van Moolenbroek     ACPI_OPERAND_OBJECT     *ObjDesc)
394*29492bb7SDavid van Moolenbroek {
395*29492bb7SDavid van Moolenbroek     ACPI_NAMESPACE_NODE     *Node;
396*29492bb7SDavid van Moolenbroek     ACPI_STATUS             Status;
397*29492bb7SDavid van Moolenbroek     ACPI_OPERAND_OBJECT     *ExtraDesc;
398*29492bb7SDavid van Moolenbroek 
399*29492bb7SDavid van Moolenbroek 
400*29492bb7SDavid van Moolenbroek     ACPI_FUNCTION_TRACE_PTR (DsGetRegionArguments, ObjDesc);
401*29492bb7SDavid van Moolenbroek 
402*29492bb7SDavid van Moolenbroek 
403*29492bb7SDavid van Moolenbroek     if (ObjDesc->Region.Flags & AOPOBJ_DATA_VALID)
404*29492bb7SDavid van Moolenbroek     {
405*29492bb7SDavid van Moolenbroek         return_ACPI_STATUS (AE_OK);
406*29492bb7SDavid van Moolenbroek     }
407*29492bb7SDavid van Moolenbroek 
408*29492bb7SDavid van Moolenbroek     ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
409*29492bb7SDavid van Moolenbroek     if (!ExtraDesc)
410*29492bb7SDavid van Moolenbroek     {
411*29492bb7SDavid van Moolenbroek         return_ACPI_STATUS (AE_NOT_EXIST);
412*29492bb7SDavid van Moolenbroek     }
413*29492bb7SDavid van Moolenbroek 
414*29492bb7SDavid van Moolenbroek     /* Get the Region node */
415*29492bb7SDavid van Moolenbroek 
416*29492bb7SDavid van Moolenbroek     Node = ObjDesc->Region.Node;
417*29492bb7SDavid van Moolenbroek 
418*29492bb7SDavid van Moolenbroek     ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_REGION, Node, NULL));
419*29492bb7SDavid van Moolenbroek 
420*29492bb7SDavid van Moolenbroek     ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] OpRegion Arg Init at AML %p\n",
421*29492bb7SDavid van Moolenbroek         AcpiUtGetNodeName (Node), ExtraDesc->Extra.AmlStart));
422*29492bb7SDavid van Moolenbroek 
423*29492bb7SDavid van Moolenbroek     /* Execute the argument AML */
424*29492bb7SDavid van Moolenbroek 
425*29492bb7SDavid van Moolenbroek     Status = AcpiDsExecuteArguments (Node, ExtraDesc->Extra.ScopeNode,
426*29492bb7SDavid van Moolenbroek                 ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
427*29492bb7SDavid van Moolenbroek     if (ACPI_FAILURE (Status))
428*29492bb7SDavid van Moolenbroek     {
429*29492bb7SDavid van Moolenbroek         return_ACPI_STATUS (Status);
430*29492bb7SDavid van Moolenbroek     }
431*29492bb7SDavid van Moolenbroek 
432*29492bb7SDavid van Moolenbroek     Status = AcpiUtAddAddressRange (ObjDesc->Region.SpaceId,
433*29492bb7SDavid van Moolenbroek                  ObjDesc->Region.Address, ObjDesc->Region.Length,
434*29492bb7SDavid van Moolenbroek                  Node);
435*29492bb7SDavid van Moolenbroek     return_ACPI_STATUS (Status);
436*29492bb7SDavid van Moolenbroek }
437