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
250
251
252
253
254
255
256
|
/******************************************************************************
*
* Module Name: exoparg3 - AML execution - opcodes with 3 arguments
*
*****************************************************************************/
/*
* 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/acinterp.h>
#include <acpi/acparser.h>
#include <acpi/amlcode.h>
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME ("exoparg3")
/*!
* Naming convention for AML interpreter execution routines.
*
* The routines that begin execution of AML opcodes are named with a common
* convention based upon the number of arguments, the number of target operands,
* and whether or not a value is returned:
*
* AcpiExOpcode_xA_yT_zR
*
* Where:
*
* xA - ARGUMENTS: The number of arguments (input operands) that are
* required for this opcode type (1 through 6 args).
* yT - TARGETS: The number of targets (output operands) that are required
* for this opcode type (0, 1, or 2 targets).
* zR - RETURN VALUE: Indicates whether this opcode type returns a value
* as the function return (0 or 1).
*
* The AcpiExOpcode* functions are called via the Dispatcher component with
* fully resolved operands.
!*/
/*******************************************************************************
*
* FUNCTION: acpi_ex_opcode_3A_0T_0R
*
* PARAMETERS: walk_state - Current walk state
*
* RETURN: Status
*
* DESCRIPTION: Execute Triadic operator (3 operands)
*
******************************************************************************/
acpi_status
acpi_ex_opcode_3A_0T_0R (
struct acpi_walk_state *walk_state)
{
union acpi_operand_object **operand = &walk_state->operands[0];
struct acpi_signal_fatal_info *fatal;
acpi_status status = AE_OK;
ACPI_FUNCTION_TRACE_STR ("ex_opcode_3A_0T_0R", acpi_ps_get_opcode_name (walk_state->opcode));
switch (walk_state->opcode) {
case AML_FATAL_OP: /* Fatal (fatal_type fatal_code fatal_arg) */
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
"fatal_op: Type %X Code %X Arg %X <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n",
(u32) operand[0]->integer.value,
(u32) operand[1]->integer.value,
(u32) operand[2]->integer.value));
fatal = ACPI_MEM_ALLOCATE (sizeof (struct acpi_signal_fatal_info));
if (fatal) {
fatal->type = (u32) operand[0]->integer.value;
fatal->code = (u32) operand[1]->integer.value;
fatal->argument = (u32) operand[2]->integer.value;
}
/*
* Always signal the OS!
*/
status = acpi_os_signal (ACPI_SIGNAL_FATAL, fatal);
/* Might return while OS is shutting down, just continue */
ACPI_MEM_FREE (fatal);
break;
default:
ACPI_REPORT_ERROR (("acpi_ex_opcode_3A_0T_0R: Unknown opcode %X\n",
walk_state->opcode));
status = AE_AML_BAD_OPCODE;
goto cleanup;
}
cleanup:
return_ACPI_STATUS (status);
}
/*******************************************************************************
*
* FUNCTION: acpi_ex_opcode_3A_1T_1R
*
* PARAMETERS: walk_state - Current walk state
*
* RETURN: Status
*
* DESCRIPTION: Execute Triadic operator (3 operands)
*
******************************************************************************/
acpi_status
acpi_ex_opcode_3A_1T_1R (
struct acpi_walk_state *walk_state)
{
union acpi_operand_object **operand = &walk_state->operands[0];
union acpi_operand_object *return_desc = NULL;
char *buffer;
acpi_status status = AE_OK;
acpi_native_uint index;
acpi_size length;
ACPI_FUNCTION_TRACE_STR ("ex_opcode_3A_1T_1R", acpi_ps_get_opcode_name (walk_state->opcode));
switch (walk_state->opcode) {
case AML_MID_OP: /* Mid (Source[0], Index[1], Length[2], Result[3]) */
/*
* Create the return object. The Source operand is guaranteed to be
* either a String or a Buffer, so just use its type.
*/
return_desc = acpi_ut_create_internal_object (ACPI_GET_OBJECT_TYPE (operand[0]));
if (!return_desc) {
status = AE_NO_MEMORY;
goto cleanup;
}
/* Get the Integer values from the objects */
index = (acpi_native_uint) operand[1]->integer.value;
length = (acpi_size) operand[2]->integer.value;
/*
* If the index is beyond the length of the String/Buffer, or if the
* requested length is zero, return a zero-length String/Buffer
*/
if ((index < operand[0]->string.length) &&
(length > 0)) {
/* Truncate request if larger than the actual String/Buffer */
if ((index + length) >
operand[0]->string.length) {
length = (acpi_size) operand[0]->string.length - index;
}
/* Allocate a new buffer for the String/Buffer */
buffer = ACPI_MEM_CALLOCATE ((acpi_size) length + 1);
if (!buffer) {
status = AE_NO_MEMORY;
goto cleanup;
}
/* Copy the portion requested */
ACPI_MEMCPY (buffer, operand[0]->string.pointer + index,
length);
/* Set the length of the new String/Buffer */
return_desc->string.pointer = buffer;
return_desc->string.length = (u32) length;
}
/* Mark buffer initialized */
return_desc->buffer.flags |= AOPOBJ_DATA_VALID;
break;
default:
ACPI_REPORT_ERROR (("acpi_ex_opcode_3A_0T_0R: Unknown opcode %X\n",
walk_state->opcode));
status = AE_AML_BAD_OPCODE;
goto cleanup;
}
/* Store the result in the target */
status = acpi_ex_store (return_desc, operand[3], walk_state);
cleanup:
/* Delete return object on error */
if (ACPI_FAILURE (status)) {
acpi_ut_remove_reference (return_desc);
}
/* Set the return object and exit */
if (!walk_state->result_obj) {
walk_state->result_obj = return_desc;
}
return_ACPI_STATUS (status);
}
|
