1/******************************************************************************
2 *
3 * Module Name: aslmaputils - Utilities for the resource descriptor/device maps
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2014, Intel Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 */
43
| 1/******************************************************************************
2 *
3 * Module Name: aslmaputils - Utilities for the resource descriptor/device maps
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2014, Intel Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 */
43
|
52
53/* This module used for application-level code only */
54
55#define _COMPONENT ACPI_COMPILER
56 ACPI_MODULE_NAME ("aslmaputils")
57
58
59/*******************************************************************************
60 *
61 * FUNCTION: MpGetHidFromParseTree
62 *
63 * PARAMETERS: HidNode - Node for a _HID object
64 *
65 * RETURN: An _HID string value. Automatically converts _HID integers
66 * to strings. Never NULL.
67 *
68 * DESCRIPTION: Extract a _HID value from the parse tree, not the namespace.
69 * Used when a fully initialized namespace is not available.
70 *
71 ******************************************************************************/
72
73char *
74MpGetHidFromParseTree (
75 ACPI_NAMESPACE_NODE *HidNode)
76{
77 ACPI_PARSE_OBJECT *Op;
78 ACPI_PARSE_OBJECT *Arg;
79 char *HidString;
80
81
82 Op = HidNode->Op;
83
84 switch (Op->Asl.ParseOpcode)
85 {
86 case PARSEOP_NAME:
87
88 Arg = Op->Asl.Child; /* Get the NameSeg/NameString node */
89 Arg = Arg->Asl.Next; /* First peer is the object to be associated with the name */
90
91 switch (Arg->Asl.ParseOpcode)
92 {
93 case PARSEOP_STRING_LITERAL:
94
95 return (Arg->Asl.Value.String);
96
97 case PARSEOP_INTEGER:
98
99 /* Convert EISAID to a string */
100
101 HidString = UtStringCacheCalloc (ACPI_EISAID_STRING_SIZE);
102 AcpiExEisaIdToString (HidString, Arg->Asl.Value.Integer);
103 return (HidString);
104
105 default:
106
107 return ("UNKNOWN");
108 }
109
110 default:
111 return ("-No HID-");
112 }
113}
114
115
116/*******************************************************************************
117 *
118 * FUNCTION: MpGetHidValue
119 *
120 * PARAMETERS: DeviceNode - Node for parent device
121 *
122 * RETURN: An _HID string value. Automatically converts _HID integers
123 * to strings. Never NULL.
124 *
125 * DESCRIPTION: Extract _HID value from within a device scope. Does not
126 * actually execute a method, just gets the string or integer
127 * value for the _HID.
128 *
129 ******************************************************************************/
130
131char *
132MpGetHidValue (
133 ACPI_NAMESPACE_NODE *DeviceNode)
134{
135 ACPI_NAMESPACE_NODE *HidNode;
136 char *HidString;
137 ACPI_STATUS Status;
138
139
140 Status = AcpiNsGetNode (DeviceNode, METHOD_NAME__HID,
141 ACPI_NS_NO_UPSEARCH, &HidNode);
142 if (ACPI_FAILURE (Status))
143 {
144 goto ErrorExit;
145 }
146
147 /* If only partial namespace, get the _HID from the parse tree */
148
149 if (!HidNode->Object)
150 {
151 return (MpGetHidFromParseTree (HidNode));
152 }
153
154 /* Handle the different _HID flavors */
155
156 switch (HidNode->Type)
157 {
158 case ACPI_TYPE_STRING:
159
160 return (HidNode->Object->String.Pointer);
161
162 case ACPI_TYPE_INTEGER:
163
164 /* Convert EISAID to a string */
165
166 HidString = UtStringCacheCalloc (ACPI_EISAID_STRING_SIZE);
167 AcpiExEisaIdToString (HidString, HidNode->Object->Integer.Value);
168 return (HidString);
169
170 case ACPI_TYPE_METHOD:
171
172 return ("-Method-");
173
174 default:
175
176 FlPrintFile (ASL_FILE_MAP_OUTPUT, "BAD HID TYPE: %u", HidNode->Type);
177 break;
178 }
179
180
181ErrorExit:
182 return ("-No HID-");
183}
184
185
186/*******************************************************************************
187 *
188 * FUNCTION: MpGetHidViaNamestring
189 *
190 * PARAMETERS: DeviceName - Namepath for parent device
191 *
192 * RETURN: _HID string. Never NULL.
193 *
194 * DESCRIPTION: Get a _HID value via a device pathname (instead of just simply
195 * a device node.)
196 *
197 ******************************************************************************/
198
199char *
200MpGetHidViaNamestring (
201 char *DeviceName)
202{
203 ACPI_NAMESPACE_NODE *DeviceNode;
204 ACPI_STATUS Status;
205
206
207 Status = AcpiNsGetNode (NULL, DeviceName, ACPI_NS_NO_UPSEARCH,
208 &DeviceNode);
209 if (ACPI_FAILURE (Status))
210 {
211 goto ErrorExit;
212 }
213
214 return (MpGetHidValue (DeviceNode));
215
216
217ErrorExit:
218 return ("-No HID-");
219}
220
221
222/*******************************************************************************
223 *
224 * FUNCTION: MpGetParentDeviceHid
225 *
226 * PARAMETERS: Op - Parse Op to be examined
227 * TargetNode - Where the field node is returned
228 * ParentDeviceName - Where the node path is returned
229 *
230 * RETURN: _HID string. Never NULL.
231 *
232 * DESCRIPTION: Find the parent Device or Scope Op, get the full pathname to
233 * the parent, and get the _HID associated with the parent.
234 *
235 ******************************************************************************/
236
237char *
238MpGetParentDeviceHid (
239 ACPI_PARSE_OBJECT *Op,
240 ACPI_NAMESPACE_NODE **TargetNode,
241 char **ParentDeviceName)
242{
243 ACPI_NAMESPACE_NODE *DeviceNode;
244
245
246 /* Find parent Device() or Scope() Op */
247
248 while (Op &&
249 (Op->Asl.AmlOpcode != AML_DEVICE_OP) &&
250 (Op->Asl.AmlOpcode != AML_SCOPE_OP))
251 {
252 Op = Op->Asl.Parent;
253 }
254
255 if (!Op)
256 {
257 FlPrintFile (ASL_FILE_MAP_OUTPUT, " No_Parent_Device ");
258 goto ErrorExit;
259 }
260
261 /* Get the full pathname to the device and the _HID */
262
263 DeviceNode = Op->Asl.Node;
264 if (!DeviceNode)
265 {
266 FlPrintFile (ASL_FILE_MAP_OUTPUT, " No_Device_Node ");
267 goto ErrorExit;
268 }
269
270 *ParentDeviceName = AcpiNsGetExternalPathname (DeviceNode);
271 return (MpGetHidValue (DeviceNode));
272
273
274ErrorExit:
275 return ("-No HID-");
276}
277
278
279/*******************************************************************************
280 *
281 * FUNCTION: MpGetDdnValue
282 *
283 * PARAMETERS: DeviceName - Namepath for parent device
284 *
285 * RETURN: _DDN description string. NULL on failure.
286 *
287 * DESCRIPTION: Execute the _DDN method for the device.
288 *
289 ******************************************************************************/
290
291char *
292MpGetDdnValue (
293 char *DeviceName)
294{
295 ACPI_NAMESPACE_NODE *DeviceNode;
296 ACPI_NAMESPACE_NODE *DdnNode;
297 ACPI_STATUS Status;
298
299
300 Status = AcpiNsGetNode (NULL, DeviceName, ACPI_NS_NO_UPSEARCH,
301 &DeviceNode);
302 if (ACPI_FAILURE (Status))
303 {
304 goto ErrorExit;
305 }
306
307 Status = AcpiNsGetNode (DeviceNode, METHOD_NAME__DDN, ACPI_NS_NO_UPSEARCH,
308 &DdnNode);
309 if (ACPI_FAILURE (Status))
310 {
311 goto ErrorExit;
312 }
313
314 if ((DdnNode->Type != ACPI_TYPE_STRING) ||
315 !DdnNode->Object)
316 {
317 goto ErrorExit;
318 }
319
320 return (DdnNode->Object->String.Pointer);
321
322
323ErrorExit:
324 return (NULL);
325}
326
327
328/*******************************************************************************
329 *
330 * FUNCTION: MpGetConnectionInfo
331 *
332 * PARAMETERS: Op - Parse Op to be examined
333 * PinIndex - Index into GPIO PinList
334 * TargetNode - Where the field node is returned
335 * TargetName - Where the node path is returned
336 *
337 * RETURN: A substitute _HID string, indicating that the name is actually
338 * a field. NULL if the Op does not refer to a Connection.
339 *
340 * DESCRIPTION: Get the Field Unit that corresponds to the PinIndex after
341 * a Connection() invocation.
342 *
343 ******************************************************************************/
344
345char *
346MpGetConnectionInfo (
347 ACPI_PARSE_OBJECT *Op,
348 UINT32 PinIndex,
349 ACPI_NAMESPACE_NODE **TargetNode,
350 char **TargetName)
351{
352 ACPI_PARSE_OBJECT *NextOp;
353 UINT32 i;
354
355
356 /*
357 * Handle Connection() here. Find the next named FieldUnit.
358 * Note: we look at the ParseOpcode for the compiler, look
359 * at the AmlOpcode for the disassembler.
360 */
361 if ((Op->Asl.AmlOpcode == AML_INT_CONNECTION_OP) ||
362 (Op->Asl.ParseOpcode == PARSEOP_CONNECTION))
363 {
364 /* Find the correct field unit definition */
365
366 NextOp = Op;
367 for (i = 0; i <= PinIndex;)
368 {
369 NextOp = NextOp->Asl.Next;
370 while (NextOp &&
371 (NextOp->Asl.ParseOpcode != PARSEOP_NAMESEG) &&
372 (NextOp->Asl.AmlOpcode != AML_INT_NAMEDFIELD_OP))
373 {
374 NextOp = NextOp->Asl.Next;
375 }
376
377 if (!NextOp)
378 {
379 return ("UNKNOWN");
380 }
381
382 /* Add length of this field to the current pin index */
383
384 if (NextOp->Asl.ParseOpcode == PARSEOP_NAMESEG)
385 {
386 i += (UINT32) NextOp->Asl.Child->Asl.Value.Integer;
387 }
388 else /* AML_INT_NAMEDFIELD_OP */
389 {
390 i += (UINT32) NextOp->Asl.Value.Integer;
391 }
392 }
393
394 /* Return the node and pathname for the field unit */
395
396 *TargetNode = NextOp->Asl.Node;
397 *TargetName = AcpiNsGetExternalPathname (*TargetNode);
398 return ("-Field-");
399 }
400
401 return (NULL);
402}
| 52
53/* This module used for application-level code only */
54
55#define _COMPONENT ACPI_COMPILER
56 ACPI_MODULE_NAME ("aslmaputils")
57
58
59/*******************************************************************************
60 *
61 * FUNCTION: MpGetHidFromParseTree
62 *
63 * PARAMETERS: HidNode - Node for a _HID object
64 *
65 * RETURN: An _HID string value. Automatically converts _HID integers
66 * to strings. Never NULL.
67 *
68 * DESCRIPTION: Extract a _HID value from the parse tree, not the namespace.
69 * Used when a fully initialized namespace is not available.
70 *
71 ******************************************************************************/
72
73char *
74MpGetHidFromParseTree (
75 ACPI_NAMESPACE_NODE *HidNode)
76{
77 ACPI_PARSE_OBJECT *Op;
78 ACPI_PARSE_OBJECT *Arg;
79 char *HidString;
80
81
82 Op = HidNode->Op;
83
84 switch (Op->Asl.ParseOpcode)
85 {
86 case PARSEOP_NAME:
87
88 Arg = Op->Asl.Child; /* Get the NameSeg/NameString node */
89 Arg = Arg->Asl.Next; /* First peer is the object to be associated with the name */
90
91 switch (Arg->Asl.ParseOpcode)
92 {
93 case PARSEOP_STRING_LITERAL:
94
95 return (Arg->Asl.Value.String);
96
97 case PARSEOP_INTEGER:
98
99 /* Convert EISAID to a string */
100
101 HidString = UtStringCacheCalloc (ACPI_EISAID_STRING_SIZE);
102 AcpiExEisaIdToString (HidString, Arg->Asl.Value.Integer);
103 return (HidString);
104
105 default:
106
107 return ("UNKNOWN");
108 }
109
110 default:
111 return ("-No HID-");
112 }
113}
114
115
116/*******************************************************************************
117 *
118 * FUNCTION: MpGetHidValue
119 *
120 * PARAMETERS: DeviceNode - Node for parent device
121 *
122 * RETURN: An _HID string value. Automatically converts _HID integers
123 * to strings. Never NULL.
124 *
125 * DESCRIPTION: Extract _HID value from within a device scope. Does not
126 * actually execute a method, just gets the string or integer
127 * value for the _HID.
128 *
129 ******************************************************************************/
130
131char *
132MpGetHidValue (
133 ACPI_NAMESPACE_NODE *DeviceNode)
134{
135 ACPI_NAMESPACE_NODE *HidNode;
136 char *HidString;
137 ACPI_STATUS Status;
138
139
140 Status = AcpiNsGetNode (DeviceNode, METHOD_NAME__HID,
141 ACPI_NS_NO_UPSEARCH, &HidNode);
142 if (ACPI_FAILURE (Status))
143 {
144 goto ErrorExit;
145 }
146
147 /* If only partial namespace, get the _HID from the parse tree */
148
149 if (!HidNode->Object)
150 {
151 return (MpGetHidFromParseTree (HidNode));
152 }
153
154 /* Handle the different _HID flavors */
155
156 switch (HidNode->Type)
157 {
158 case ACPI_TYPE_STRING:
159
160 return (HidNode->Object->String.Pointer);
161
162 case ACPI_TYPE_INTEGER:
163
164 /* Convert EISAID to a string */
165
166 HidString = UtStringCacheCalloc (ACPI_EISAID_STRING_SIZE);
167 AcpiExEisaIdToString (HidString, HidNode->Object->Integer.Value);
168 return (HidString);
169
170 case ACPI_TYPE_METHOD:
171
172 return ("-Method-");
173
174 default:
175
176 FlPrintFile (ASL_FILE_MAP_OUTPUT, "BAD HID TYPE: %u", HidNode->Type);
177 break;
178 }
179
180
181ErrorExit:
182 return ("-No HID-");
183}
184
185
186/*******************************************************************************
187 *
188 * FUNCTION: MpGetHidViaNamestring
189 *
190 * PARAMETERS: DeviceName - Namepath for parent device
191 *
192 * RETURN: _HID string. Never NULL.
193 *
194 * DESCRIPTION: Get a _HID value via a device pathname (instead of just simply
195 * a device node.)
196 *
197 ******************************************************************************/
198
199char *
200MpGetHidViaNamestring (
201 char *DeviceName)
202{
203 ACPI_NAMESPACE_NODE *DeviceNode;
204 ACPI_STATUS Status;
205
206
207 Status = AcpiNsGetNode (NULL, DeviceName, ACPI_NS_NO_UPSEARCH,
208 &DeviceNode);
209 if (ACPI_FAILURE (Status))
210 {
211 goto ErrorExit;
212 }
213
214 return (MpGetHidValue (DeviceNode));
215
216
217ErrorExit:
218 return ("-No HID-");
219}
220
221
222/*******************************************************************************
223 *
224 * FUNCTION: MpGetParentDeviceHid
225 *
226 * PARAMETERS: Op - Parse Op to be examined
227 * TargetNode - Where the field node is returned
228 * ParentDeviceName - Where the node path is returned
229 *
230 * RETURN: _HID string. Never NULL.
231 *
232 * DESCRIPTION: Find the parent Device or Scope Op, get the full pathname to
233 * the parent, and get the _HID associated with the parent.
234 *
235 ******************************************************************************/
236
237char *
238MpGetParentDeviceHid (
239 ACPI_PARSE_OBJECT *Op,
240 ACPI_NAMESPACE_NODE **TargetNode,
241 char **ParentDeviceName)
242{
243 ACPI_NAMESPACE_NODE *DeviceNode;
244
245
246 /* Find parent Device() or Scope() Op */
247
248 while (Op &&
249 (Op->Asl.AmlOpcode != AML_DEVICE_OP) &&
250 (Op->Asl.AmlOpcode != AML_SCOPE_OP))
251 {
252 Op = Op->Asl.Parent;
253 }
254
255 if (!Op)
256 {
257 FlPrintFile (ASL_FILE_MAP_OUTPUT, " No_Parent_Device ");
258 goto ErrorExit;
259 }
260
261 /* Get the full pathname to the device and the _HID */
262
263 DeviceNode = Op->Asl.Node;
264 if (!DeviceNode)
265 {
266 FlPrintFile (ASL_FILE_MAP_OUTPUT, " No_Device_Node ");
267 goto ErrorExit;
268 }
269
270 *ParentDeviceName = AcpiNsGetExternalPathname (DeviceNode);
271 return (MpGetHidValue (DeviceNode));
272
273
274ErrorExit:
275 return ("-No HID-");
276}
277
278
279/*******************************************************************************
280 *
281 * FUNCTION: MpGetDdnValue
282 *
283 * PARAMETERS: DeviceName - Namepath for parent device
284 *
285 * RETURN: _DDN description string. NULL on failure.
286 *
287 * DESCRIPTION: Execute the _DDN method for the device.
288 *
289 ******************************************************************************/
290
291char *
292MpGetDdnValue (
293 char *DeviceName)
294{
295 ACPI_NAMESPACE_NODE *DeviceNode;
296 ACPI_NAMESPACE_NODE *DdnNode;
297 ACPI_STATUS Status;
298
299
300 Status = AcpiNsGetNode (NULL, DeviceName, ACPI_NS_NO_UPSEARCH,
301 &DeviceNode);
302 if (ACPI_FAILURE (Status))
303 {
304 goto ErrorExit;
305 }
306
307 Status = AcpiNsGetNode (DeviceNode, METHOD_NAME__DDN, ACPI_NS_NO_UPSEARCH,
308 &DdnNode);
309 if (ACPI_FAILURE (Status))
310 {
311 goto ErrorExit;
312 }
313
314 if ((DdnNode->Type != ACPI_TYPE_STRING) ||
315 !DdnNode->Object)
316 {
317 goto ErrorExit;
318 }
319
320 return (DdnNode->Object->String.Pointer);
321
322
323ErrorExit:
324 return (NULL);
325}
326
327
328/*******************************************************************************
329 *
330 * FUNCTION: MpGetConnectionInfo
331 *
332 * PARAMETERS: Op - Parse Op to be examined
333 * PinIndex - Index into GPIO PinList
334 * TargetNode - Where the field node is returned
335 * TargetName - Where the node path is returned
336 *
337 * RETURN: A substitute _HID string, indicating that the name is actually
338 * a field. NULL if the Op does not refer to a Connection.
339 *
340 * DESCRIPTION: Get the Field Unit that corresponds to the PinIndex after
341 * a Connection() invocation.
342 *
343 ******************************************************************************/
344
345char *
346MpGetConnectionInfo (
347 ACPI_PARSE_OBJECT *Op,
348 UINT32 PinIndex,
349 ACPI_NAMESPACE_NODE **TargetNode,
350 char **TargetName)
351{
352 ACPI_PARSE_OBJECT *NextOp;
353 UINT32 i;
354
355
356 /*
357 * Handle Connection() here. Find the next named FieldUnit.
358 * Note: we look at the ParseOpcode for the compiler, look
359 * at the AmlOpcode for the disassembler.
360 */
361 if ((Op->Asl.AmlOpcode == AML_INT_CONNECTION_OP) ||
362 (Op->Asl.ParseOpcode == PARSEOP_CONNECTION))
363 {
364 /* Find the correct field unit definition */
365
366 NextOp = Op;
367 for (i = 0; i <= PinIndex;)
368 {
369 NextOp = NextOp->Asl.Next;
370 while (NextOp &&
371 (NextOp->Asl.ParseOpcode != PARSEOP_NAMESEG) &&
372 (NextOp->Asl.AmlOpcode != AML_INT_NAMEDFIELD_OP))
373 {
374 NextOp = NextOp->Asl.Next;
375 }
376
377 if (!NextOp)
378 {
379 return ("UNKNOWN");
380 }
381
382 /* Add length of this field to the current pin index */
383
384 if (NextOp->Asl.ParseOpcode == PARSEOP_NAMESEG)
385 {
386 i += (UINT32) NextOp->Asl.Child->Asl.Value.Integer;
387 }
388 else /* AML_INT_NAMEDFIELD_OP */
389 {
390 i += (UINT32) NextOp->Asl.Value.Integer;
391 }
392 }
393
394 /* Return the node and pathname for the field unit */
395
396 *TargetNode = NextOp->Asl.Node;
397 *TargetName = AcpiNsGetExternalPathname (*TargetNode);
398 return ("-Field-");
399 }
400
401 return (NULL);
402}
|