1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
|
/******************************************************************************
*
* Module Name: dsinit - Object initialization namespace walk
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2005, R. Byron Moore
* 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.
*/
#include <acpi/acpi.h>
#include <acpi/acdispat.h>
#include <acpi/acnamesp.h>
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME ("dsinit")
/* Local prototypes */
static acpi_status
acpi_ds_init_one_object (
acpi_handle obj_handle,
u32 level,
void *context,
void **return_value);
/*******************************************************************************
*
* FUNCTION: acpi_ds_init_one_object
*
* PARAMETERS: obj_handle - Node for the object
* Level - Current nesting level
* Context - Points to a init info struct
* return_value - Not used
*
* RETURN: Status
*
* DESCRIPTION: Callback from acpi_walk_namespace. Invoked for every object
* within the namespace.
*
* Currently, the only objects that require initialization are:
* 1) Methods
* 2) Operation Regions
*
******************************************************************************/
static acpi_status
acpi_ds_init_one_object (
acpi_handle obj_handle,
u32 level,
void *context,
void **return_value)
{
acpi_object_type type;
acpi_status status;
struct acpi_init_walk_info *info = (struct acpi_init_walk_info *) context;
ACPI_FUNCTION_NAME ("ds_init_one_object");
/*
* We are only interested in objects owned by the table that
* was just loaded
*/
if (((struct acpi_namespace_node *) obj_handle)->owner_id !=
info->table_desc->table_id) {
return (AE_OK);
}
info->object_count++;
/* And even then, we are only interested in a few object types */
type = acpi_ns_get_type (obj_handle);
switch (type) {
case ACPI_TYPE_REGION:
status = acpi_ds_initialize_region (obj_handle);
if (ACPI_FAILURE (status)) {
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
"Region %p [%4.4s] - Init failure, %s\n",
obj_handle, acpi_ut_get_node_name (obj_handle),
acpi_format_exception (status)));
}
info->op_region_count++;
break;
case ACPI_TYPE_METHOD:
info->method_count++;
/*
* Print a dot for each method unless we are going to print
* the entire pathname
*/
if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) {
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "."));
}
/*
* Set the execution data width (32 or 64) based upon the
* revision number of the parent ACPI table.
* TBD: This is really for possible future support of integer width
* on a per-table basis. Currently, we just use a global for the width.
*/
if (info->table_desc->pointer->revision == 1) {
((struct acpi_namespace_node *) obj_handle)->flags |= ANOBJ_DATA_WIDTH_32;
}
/*
* Always parse methods to detect errors, we will delete
* the parse tree below
*/
status = acpi_ds_parse_method (obj_handle);
if (ACPI_FAILURE (status)) {
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
"Method %p [%4.4s] - parse failure, %s\n",
obj_handle, acpi_ut_get_node_name (obj_handle),
acpi_format_exception (status)));
/* This parse failed, but we will continue parsing more methods */
break;
}
/*
* Delete the parse tree. We simply re-parse the method
* for every execution since there isn't much overhead
*/
acpi_ns_delete_namespace_subtree (obj_handle);
acpi_ns_delete_namespace_by_owner (
((struct acpi_namespace_node *) obj_handle)->object->method.owning_id);
break;
case ACPI_TYPE_DEVICE:
info->device_count++;
break;
default:
break;
}
/*
* We ignore errors from above, and always return OK, since
* we don't want to abort the walk on a single error.
*/
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: acpi_ds_initialize_objects
*
* PARAMETERS: table_desc - Descriptor for parent ACPI table
* start_node - Root of subtree to be initialized.
*
* RETURN: Status
*
* DESCRIPTION: Walk the namespace starting at "start_node" and perform any
* necessary initialization on the objects found therein
*
******************************************************************************/
acpi_status
acpi_ds_initialize_objects (
struct acpi_table_desc *table_desc,
struct acpi_namespace_node *start_node)
{
acpi_status status;
struct acpi_init_walk_info info;
ACPI_FUNCTION_TRACE ("ds_initialize_objects");
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
"**** Starting initialization of namespace objects ****\n"));
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "Parsing all Control Methods:"));
info.method_count = 0;
info.op_region_count = 0;
info.object_count = 0;
info.device_count = 0;
info.table_desc = table_desc;
/* Walk entire namespace from the supplied root */
status = acpi_walk_namespace (ACPI_TYPE_ANY, start_node, ACPI_UINT32_MAX,
acpi_ds_init_one_object, &info, NULL);
if (ACPI_FAILURE (status)) {
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "walk_namespace failed, %s\n",
acpi_format_exception (status)));
}
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
"\nTable [%4.4s](id %4.4X) - %hd Objects with %hd Devices %hd Methods %hd Regions\n",
table_desc->pointer->signature, table_desc->table_id, info.object_count,
info.device_count, info.method_count, info.op_region_count));
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
"%hd Methods, %hd Regions\n", info.method_count, info.op_region_count));
return_ACPI_STATUS (AE_OK);
}
|
