Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Module Name: dswexec - Dispatcher method execution callbacks; |
| 4 | * dispatch to interpreter. |
| 5 | * |
| 6 | *****************************************************************************/ |
| 7 | |
| 8 | /* |
Bob Moore | 4a90c7e | 2006-01-13 16:22:00 -0500 | [diff] [blame] | 9 | * Copyright (C) 2000 - 2006, R. Byron Moore |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | * All rights reserved. |
| 11 | * |
| 12 | * Redistribution and use in source and binary forms, with or without |
| 13 | * modification, are permitted provided that the following conditions |
| 14 | * are met: |
| 15 | * 1. Redistributions of source code must retain the above copyright |
| 16 | * notice, this list of conditions, and the following disclaimer, |
| 17 | * without modification. |
| 18 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| 19 | * substantially similar to the "NO WARRANTY" disclaimer below |
| 20 | * ("Disclaimer") and any redistribution must be conditioned upon |
| 21 | * including a substantially similar Disclaimer requirement for further |
| 22 | * binary redistribution. |
| 23 | * 3. Neither the names of the above-listed copyright holders nor the names |
| 24 | * of any contributors may be used to endorse or promote products derived |
| 25 | * from this software without specific prior written permission. |
| 26 | * |
| 27 | * Alternatively, this software may be distributed under the terms of the |
| 28 | * GNU General Public License ("GPL") version 2 as published by the Free |
| 29 | * Software Foundation. |
| 30 | * |
| 31 | * NO WARRANTY |
| 32 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 33 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 34 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| 35 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 36 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 37 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 38 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 39 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 40 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 41 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 42 | * POSSIBILITY OF SUCH DAMAGES. |
| 43 | */ |
| 44 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | #include <acpi/acpi.h> |
| 46 | #include <acpi/acparser.h> |
| 47 | #include <acpi/amlcode.h> |
| 48 | #include <acpi/acdispat.h> |
| 49 | #include <acpi/acinterp.h> |
| 50 | #include <acpi/acnamesp.h> |
| 51 | #include <acpi/acdebug.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | #define _COMPONENT ACPI_DISPATCHER |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 54 | ACPI_MODULE_NAME("dswexec") |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | |
| 56 | /* |
| 57 | * Dispatch table for opcode classes |
| 58 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 59 | static ACPI_EXECUTE_OP acpi_gbl_op_type_dispatch[] = { |
| 60 | acpi_ex_opcode_0A_0T_1R, |
| 61 | acpi_ex_opcode_1A_0T_0R, |
| 62 | acpi_ex_opcode_1A_0T_1R, |
| 63 | acpi_ex_opcode_1A_1T_0R, |
| 64 | acpi_ex_opcode_1A_1T_1R, |
| 65 | acpi_ex_opcode_2A_0T_0R, |
| 66 | acpi_ex_opcode_2A_0T_1R, |
| 67 | acpi_ex_opcode_2A_1T_1R, |
| 68 | acpi_ex_opcode_2A_2T_1R, |
| 69 | acpi_ex_opcode_3A_0T_0R, |
| 70 | acpi_ex_opcode_3A_1T_1R, |
| 71 | acpi_ex_opcode_6A_0T_1R |
| 72 | }; |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 73 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | /***************************************************************************** |
| 75 | * |
| 76 | * FUNCTION: acpi_ds_get_predicate_value |
| 77 | * |
| 78 | * PARAMETERS: walk_state - Current state of the parse tree walk |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 79 | * result_obj - if non-zero, pop result from result stack |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | * |
| 81 | * RETURN: Status |
| 82 | * |
| 83 | * DESCRIPTION: Get the result of a predicate evaluation |
| 84 | * |
| 85 | ****************************************************************************/ |
| 86 | |
| 87 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 88 | acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state, |
| 89 | union acpi_operand_object *result_obj) |
| 90 | { |
| 91 | acpi_status status = AE_OK; |
| 92 | union acpi_operand_object *obj_desc; |
| 93 | union acpi_operand_object *local_obj_desc = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 95 | ACPI_FUNCTION_TRACE_PTR(ds_get_predicate_value, walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | |
| 97 | walk_state->control_state->common.state = 0; |
| 98 | |
| 99 | if (result_obj) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 100 | status = acpi_ds_result_pop(&obj_desc, walk_state); |
| 101 | if (ACPI_FAILURE(status)) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 102 | ACPI_EXCEPTION((AE_INFO, status, |
| 103 | "Could not get result from predicate evaluation")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 105 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 107 | } else { |
| 108 | status = acpi_ds_create_operand(walk_state, walk_state->op, 0); |
| 109 | if (ACPI_FAILURE(status)) { |
| 110 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | } |
| 112 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 113 | status = |
| 114 | acpi_ex_resolve_to_value(&walk_state->operands[0], |
| 115 | walk_state); |
| 116 | if (ACPI_FAILURE(status)) { |
| 117 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | } |
| 119 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 120 | obj_desc = walk_state->operands[0]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | } |
| 122 | |
| 123 | if (!obj_desc) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 124 | ACPI_ERROR((AE_INFO, |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 125 | "No predicate ObjDesc=%p State=%p", |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 126 | obj_desc, walk_state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 128 | return_ACPI_STATUS(AE_AML_NO_OPERAND); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | } |
| 130 | |
| 131 | /* |
| 132 | * Result of predicate evaluation must be an Integer |
| 133 | * object. Implicitly convert the argument if necessary. |
| 134 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 135 | status = acpi_ex_convert_to_integer(obj_desc, &local_obj_desc, 16); |
| 136 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | goto cleanup; |
| 138 | } |
| 139 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 140 | if (ACPI_GET_OBJECT_TYPE(local_obj_desc) != ACPI_TYPE_INTEGER) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 141 | ACPI_ERROR((AE_INFO, |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 142 | "Bad predicate (not an integer) ObjDesc=%p State=%p Type=%X", |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 143 | obj_desc, walk_state, |
| 144 | ACPI_GET_OBJECT_TYPE(obj_desc))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | |
| 146 | status = AE_AML_OPERAND_TYPE; |
| 147 | goto cleanup; |
| 148 | } |
| 149 | |
| 150 | /* Truncate the predicate to 32-bits if necessary */ |
| 151 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 152 | acpi_ex_truncate_for32bit_table(local_obj_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | |
| 154 | /* |
| 155 | * Save the result of the predicate evaluation on |
| 156 | * the control stack |
| 157 | */ |
| 158 | if (local_obj_desc->integer.value) { |
| 159 | walk_state->control_state->common.value = TRUE; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 160 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | /* |
| 162 | * Predicate is FALSE, we will just toss the |
| 163 | * rest of the package |
| 164 | */ |
| 165 | walk_state->control_state->common.value = FALSE; |
| 166 | status = AE_CTRL_FALSE; |
| 167 | } |
| 168 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 169 | cleanup: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 171 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Completed a predicate eval=%X Op=%p\n", |
| 172 | walk_state->control_state->common.value, |
| 173 | walk_state->op)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 175 | /* Break to debugger to display result */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 177 | ACPI_DEBUGGER_EXEC(acpi_db_display_result_object |
| 178 | (local_obj_desc, walk_state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | |
| 180 | /* |
| 181 | * Delete the predicate result object (we know that |
| 182 | * we don't need it anymore) |
| 183 | */ |
| 184 | if (local_obj_desc != obj_desc) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 185 | acpi_ut_remove_reference(local_obj_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 187 | acpi_ut_remove_reference(obj_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | |
| 189 | walk_state->control_state->common.state = ACPI_CONTROL_NORMAL; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 190 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | } |
| 192 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | /***************************************************************************** |
| 194 | * |
| 195 | * FUNCTION: acpi_ds_exec_begin_op |
| 196 | * |
| 197 | * PARAMETERS: walk_state - Current state of the parse tree walk |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 198 | * out_op - Where to return op if a new one is created |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | * |
| 200 | * RETURN: Status |
| 201 | * |
| 202 | * DESCRIPTION: Descending callback used during the execution of control |
| 203 | * methods. This is where most operators and operands are |
| 204 | * dispatched to the interpreter. |
| 205 | * |
| 206 | ****************************************************************************/ |
| 207 | |
| 208 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 209 | acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state, |
| 210 | union acpi_parse_object **out_op) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 212 | union acpi_parse_object *op; |
| 213 | acpi_status status = AE_OK; |
| 214 | u32 opcode_class; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 216 | ACPI_FUNCTION_TRACE_PTR(ds_exec_begin_op, walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | |
| 218 | op = walk_state->op; |
| 219 | if (!op) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 220 | status = acpi_ds_load2_begin_op(walk_state, out_op); |
| 221 | if (ACPI_FAILURE(status)) { |
| 222 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | } |
| 224 | |
| 225 | op = *out_op; |
| 226 | walk_state->op = op; |
| 227 | walk_state->opcode = op->common.aml_opcode; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 228 | walk_state->op_info = |
| 229 | acpi_ps_get_opcode_info(op->common.aml_opcode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 231 | if (acpi_ns_opens_scope(walk_state->op_info->object_type)) { |
| 232 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 233 | "(%s) Popping scope for Op %p\n", |
| 234 | acpi_ut_get_type_name(walk_state-> |
| 235 | op_info-> |
| 236 | object_type), |
| 237 | op)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 239 | status = acpi_ds_scope_stack_pop(walk_state); |
| 240 | if (ACPI_FAILURE(status)) { |
| 241 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | } |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | if (op == walk_state->origin) { |
| 247 | if (out_op) { |
| 248 | *out_op = op; |
| 249 | } |
| 250 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 251 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | } |
| 253 | |
| 254 | /* |
| 255 | * If the previous opcode was a conditional, this opcode |
| 256 | * must be the beginning of the associated predicate. |
| 257 | * Save this knowledge in the current scope descriptor |
| 258 | */ |
| 259 | if ((walk_state->control_state) && |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 260 | (walk_state->control_state->common.state == |
| 261 | ACPI_CONTROL_CONDITIONAL_EXECUTING)) { |
| 262 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 263 | "Exec predicate Op=%p State=%p\n", op, |
| 264 | walk_state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 266 | walk_state->control_state->common.state = |
| 267 | ACPI_CONTROL_PREDICATE_EXECUTING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | |
| 269 | /* Save start of predicate */ |
| 270 | |
| 271 | walk_state->control_state->control.predicate_op = op; |
| 272 | } |
| 273 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | opcode_class = walk_state->op_info->class; |
| 275 | |
| 276 | /* We want to send namepaths to the load code */ |
| 277 | |
| 278 | if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) { |
| 279 | opcode_class = AML_CLASS_NAMED_OBJECT; |
| 280 | } |
| 281 | |
| 282 | /* |
| 283 | * Handle the opcode based upon the opcode type |
| 284 | */ |
| 285 | switch (opcode_class) { |
| 286 | case AML_CLASS_CONTROL: |
| 287 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 288 | status = acpi_ds_result_stack_push(walk_state); |
| 289 | if (ACPI_FAILURE(status)) { |
| 290 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | } |
| 292 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 293 | status = acpi_ds_exec_begin_control_op(walk_state, op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | break; |
| 295 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | case AML_CLASS_NAMED_OBJECT: |
| 297 | |
Bob Moore | 4119532 | 2006-05-26 16:36:00 -0400 | [diff] [blame^] | 298 | if (walk_state->walk_type & ACPI_WALK_METHOD) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | /* |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 300 | * Found a named object declaration during method execution; |
| 301 | * we must enter this object into the namespace. The created |
| 302 | * object is temporary and will be deleted upon completion of |
| 303 | * the execution of this method. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 305 | status = acpi_ds_load2_begin_op(walk_state, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | } |
| 307 | |
| 308 | if (op->common.aml_opcode == AML_REGION_OP) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 309 | status = acpi_ds_result_stack_push(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | } |
| 311 | break; |
| 312 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | case AML_CLASS_EXECUTE: |
| 314 | case AML_CLASS_CREATE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | /* |
| 316 | * Most operators with arguments. |
| 317 | * Start a new result/operand state |
| 318 | */ |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 319 | if (walk_state->opcode != AML_CREATE_FIELD_OP) { |
| 320 | status = acpi_ds_result_stack_push(walk_state); |
| 321 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | break; |
| 323 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | default: |
| 325 | break; |
| 326 | } |
| 327 | |
| 328 | /* Nothing to do here during method execution */ |
| 329 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 330 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | } |
| 332 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | /***************************************************************************** |
| 334 | * |
| 335 | * FUNCTION: acpi_ds_exec_end_op |
| 336 | * |
| 337 | * PARAMETERS: walk_state - Current state of the parse tree walk |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | * |
| 339 | * RETURN: Status |
| 340 | * |
| 341 | * DESCRIPTION: Ascending callback used during the execution of control |
| 342 | * methods. The only thing we really need to do here is to |
| 343 | * notice the beginning of IF, ELSE, and WHILE blocks. |
| 344 | * |
| 345 | ****************************************************************************/ |
| 346 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 347 | acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 349 | union acpi_parse_object *op; |
| 350 | acpi_status status = AE_OK; |
| 351 | u32 op_type; |
| 352 | u32 op_class; |
| 353 | union acpi_parse_object *next_op; |
| 354 | union acpi_parse_object *first_arg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 356 | ACPI_FUNCTION_TRACE_PTR(ds_exec_end_op, walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 358 | op = walk_state->op; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | op_type = walk_state->op_info->type; |
| 360 | op_class = walk_state->op_info->class; |
| 361 | |
| 362 | if (op_class == AML_CLASS_UNKNOWN) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 363 | ACPI_ERROR((AE_INFO, "Unknown opcode %X", |
| 364 | op->common.aml_opcode)); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 365 | return_ACPI_STATUS(AE_NOT_IMPLEMENTED); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | } |
| 367 | |
| 368 | first_arg = op->common.value.arg; |
| 369 | |
| 370 | /* Init the walk state */ |
| 371 | |
| 372 | walk_state->num_operands = 0; |
| 373 | walk_state->return_desc = NULL; |
| 374 | walk_state->result_obj = NULL; |
| 375 | |
| 376 | /* Call debugger for single step support (DEBUG build only) */ |
| 377 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 378 | ACPI_DEBUGGER_EXEC(status = |
| 379 | acpi_db_single_step(walk_state, op, op_class)); |
| 380 | ACPI_DEBUGGER_EXEC(if (ACPI_FAILURE(status)) { |
| 381 | return_ACPI_STATUS(status);} |
| 382 | ) ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | |
| 384 | /* Decode the Opcode Class */ |
| 385 | |
| 386 | switch (op_class) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 387 | case AML_CLASS_ARGUMENT: /* constants, literals, etc. - do nothing */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | break; |
| 389 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 390 | case AML_CLASS_EXECUTE: /* most operators with arguments */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | |
| 392 | /* Build resolved operand stack */ |
| 393 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 394 | status = acpi_ds_create_operands(walk_state, first_arg); |
| 395 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | goto cleanup; |
| 397 | } |
| 398 | |
| 399 | /* Done with this result state (Now that operand stack is built) */ |
| 400 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 401 | status = acpi_ds_result_stack_pop(walk_state); |
| 402 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | goto cleanup; |
| 404 | } |
| 405 | |
| 406 | /* |
| 407 | * All opcodes require operand resolution, with the only exceptions |
| 408 | * being the object_type and size_of operators. |
| 409 | */ |
| 410 | if (!(walk_state->op_info->flags & AML_NO_OPERAND_RESOLVE)) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 411 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | /* Resolve all operands */ |
| 413 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 414 | status = acpi_ex_resolve_operands(walk_state->opcode, |
| 415 | &(walk_state-> |
| 416 | operands |
| 417 | [walk_state-> |
| 418 | num_operands - 1]), |
| 419 | walk_state); |
| 420 | if (ACPI_SUCCESS(status)) { |
| 421 | ACPI_DUMP_OPERANDS(ACPI_WALK_OPERANDS, |
| 422 | ACPI_IMODE_EXECUTE, |
| 423 | acpi_ps_get_opcode_name |
| 424 | (walk_state->opcode), |
| 425 | walk_state->num_operands, |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 426 | "after ExResolveOperands"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | } |
| 428 | } |
| 429 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 430 | if (ACPI_SUCCESS(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 431 | /* |
| 432 | * Dispatch the request to the appropriate interpreter handler |
| 433 | * routine. There is one routine per opcode "type" based upon the |
| 434 | * number of opcode arguments and return type. |
| 435 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 436 | status = |
| 437 | acpi_gbl_op_type_dispatch[op_type] (walk_state); |
| 438 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 439 | /* |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 440 | * Treat constructs of the form "Store(LocalX,LocalX)" as noops when the |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | * Local is uninitialized. |
| 442 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 443 | if ((status == AE_AML_UNINITIALIZED_LOCAL) && |
| 444 | (walk_state->opcode == AML_STORE_OP) && |
| 445 | (walk_state->operands[0]->common.type == |
| 446 | ACPI_TYPE_LOCAL_REFERENCE) |
| 447 | && (walk_state->operands[1]->common.type == |
| 448 | ACPI_TYPE_LOCAL_REFERENCE) |
| 449 | && (walk_state->operands[0]->reference.opcode == |
| 450 | walk_state->operands[1]->reference.opcode) |
| 451 | && (walk_state->operands[0]->reference.offset == |
| 452 | walk_state->operands[1]->reference.offset)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | status = AE_OK; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 454 | } else { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 455 | ACPI_EXCEPTION((AE_INFO, status, |
| 456 | "While resolving operands for [%s]", |
| 457 | acpi_ps_get_opcode_name |
| 458 | (walk_state->opcode))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | } |
| 460 | } |
| 461 | |
| 462 | /* Always delete the argument objects and clear the operand stack */ |
| 463 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 464 | acpi_ds_clear_operands(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | |
| 466 | /* |
| 467 | * If a result object was returned from above, push it on the |
| 468 | * current result stack |
| 469 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 470 | if (ACPI_SUCCESS(status) && walk_state->result_obj) { |
| 471 | status = |
| 472 | acpi_ds_result_push(walk_state->result_obj, |
| 473 | walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | } |
| 475 | |
| 476 | break; |
| 477 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 478 | default: |
| 479 | |
| 480 | switch (op_type) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 481 | case AML_TYPE_CONTROL: /* Type 1 opcode, IF/ELSE/WHILE/NOOP */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | |
| 483 | /* 1 Operand, 0 external_result, 0 internal_result */ |
| 484 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 485 | status = acpi_ds_exec_end_control_op(walk_state, op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | |
| 487 | /* Make sure to properly pop the result stack */ |
| 488 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 489 | if (ACPI_SUCCESS(status)) { |
| 490 | status = acpi_ds_result_stack_pop(walk_state); |
| 491 | } else if (status == AE_CTRL_PENDING) { |
| 492 | status = acpi_ds_result_stack_pop(walk_state); |
| 493 | if (ACPI_SUCCESS(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 494 | status = AE_CTRL_PENDING; |
| 495 | } |
| 496 | } |
| 497 | break; |
| 498 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | case AML_TYPE_METHOD_CALL: |
| 500 | |
| 501 | /* |
| 502 | * If the method is referenced from within a package |
| 503 | * declaration, it is not a invocation of the method, just |
| 504 | * a reference to it. |
| 505 | */ |
| 506 | if ((op->asl.parent) && |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 507 | ((op->asl.parent->asl.aml_opcode == AML_PACKAGE_OP) |
| 508 | || (op->asl.parent->asl.aml_opcode == |
| 509 | AML_VAR_PACKAGE_OP))) { |
| 510 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 511 | "Method Reference in a Package, Op=%p\n", |
| 512 | op)); |
| 513 | op->common.node = |
| 514 | (struct acpi_namespace_node *)op->asl.value. |
| 515 | arg->asl.node->object; |
| 516 | acpi_ut_add_reference(op->asl.value.arg->asl. |
| 517 | node->object); |
| 518 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | } |
| 520 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 521 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 522 | "Method invocation, Op=%p\n", op)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | |
| 524 | /* |
| 525 | * (AML_METHODCALL) Op->Asl.Value.Arg->Asl.Node contains |
| 526 | * the method Node pointer |
| 527 | */ |
| 528 | /* next_op points to the op that holds the method name */ |
| 529 | |
| 530 | next_op = first_arg; |
| 531 | |
| 532 | /* next_op points to first argument op */ |
| 533 | |
| 534 | next_op = next_op->common.next; |
| 535 | |
| 536 | /* |
| 537 | * Get the method's arguments and put them on the operand stack |
| 538 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 539 | status = acpi_ds_create_operands(walk_state, next_op); |
| 540 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 541 | break; |
| 542 | } |
| 543 | |
| 544 | /* |
| 545 | * Since the operands will be passed to another control method, |
| 546 | * we must resolve all local references here (Local variables, |
| 547 | * arguments to *this* method, etc.) |
| 548 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 549 | status = acpi_ds_resolve_operands(walk_state); |
| 550 | if (ACPI_FAILURE(status)) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 551 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | /* On error, clear all resolved operands */ |
| 553 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 554 | acpi_ds_clear_operands(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 555 | break; |
| 556 | } |
| 557 | |
| 558 | /* |
| 559 | * Tell the walk loop to preempt this running method and |
| 560 | * execute the new method |
| 561 | */ |
| 562 | status = AE_CTRL_TRANSFER; |
| 563 | |
| 564 | /* |
| 565 | * Return now; we don't want to disturb anything, |
| 566 | * especially the operand count! |
| 567 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 568 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 569 | |
| 570 | case AML_TYPE_CREATE_FIELD: |
| 571 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 572 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 573 | "Executing CreateField Buffer/Index Op=%p\n", |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 574 | op)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 576 | status = acpi_ds_load2_end_op(walk_state); |
| 577 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | break; |
| 579 | } |
| 580 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 581 | status = |
| 582 | acpi_ds_eval_buffer_field_operands(walk_state, op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 583 | break; |
| 584 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | case AML_TYPE_CREATE_OBJECT: |
| 586 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 587 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 588 | "Executing CreateObject (Buffer/Package) Op=%p\n", |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 589 | op)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | |
| 591 | switch (op->common.parent->common.aml_opcode) { |
| 592 | case AML_NAME_OP: |
| 593 | |
| 594 | /* |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 595 | * Put the Node on the object stack (Contains the ACPI Name |
| 596 | * of this object) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 597 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 598 | walk_state->operands[0] = |
| 599 | (void *)op->common.parent->common.node; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 600 | walk_state->num_operands = 1; |
| 601 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 602 | status = acpi_ds_create_node(walk_state, |
| 603 | op->common.parent-> |
| 604 | common.node, |
| 605 | op->common.parent); |
| 606 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | break; |
| 608 | } |
| 609 | |
| 610 | /* Fall through */ |
| 611 | /*lint -fallthrough */ |
| 612 | |
| 613 | case AML_INT_EVAL_SUBTREE_OP: |
| 614 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 615 | status = |
| 616 | acpi_ds_eval_data_object_operands |
| 617 | (walk_state, op, |
| 618 | acpi_ns_get_attached_object(op->common. |
| 619 | parent->common. |
| 620 | node)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 621 | break; |
| 622 | |
| 623 | default: |
| 624 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 625 | status = |
| 626 | acpi_ds_eval_data_object_operands |
| 627 | (walk_state, op, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 628 | break; |
| 629 | } |
| 630 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 631 | /* Done with result state (Now that operand stack is built) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 632 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 633 | status = acpi_ds_result_stack_pop(walk_state); |
| 634 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 635 | goto cleanup; |
| 636 | } |
| 637 | |
| 638 | /* |
| 639 | * If a result object was returned from above, push it on the |
| 640 | * current result stack |
| 641 | */ |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 642 | if (walk_state->result_obj) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 643 | status = |
| 644 | acpi_ds_result_push(walk_state->result_obj, |
| 645 | walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 646 | } |
| 647 | break; |
| 648 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 649 | case AML_TYPE_NAMED_FIELD: |
| 650 | case AML_TYPE_NAMED_COMPLEX: |
| 651 | case AML_TYPE_NAMED_SIMPLE: |
| 652 | case AML_TYPE_NAMED_NO_OBJ: |
| 653 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 654 | status = acpi_ds_load2_end_op(walk_state); |
| 655 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | break; |
| 657 | } |
| 658 | |
| 659 | if (op->common.aml_opcode == AML_REGION_OP) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 660 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 661 | "Executing OpRegion Address/Length Op=%p\n", |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 662 | op)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 663 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 664 | status = |
| 665 | acpi_ds_eval_region_operands(walk_state, |
| 666 | op); |
| 667 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 668 | break; |
| 669 | } |
| 670 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 671 | status = acpi_ds_result_stack_pop(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | } |
| 673 | |
| 674 | break; |
| 675 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 676 | case AML_TYPE_UNDEFINED: |
| 677 | |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 678 | ACPI_ERROR((AE_INFO, |
| 679 | "Undefined opcode type Op=%p", op)); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 680 | return_ACPI_STATUS(AE_NOT_IMPLEMENTED); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 681 | |
| 682 | case AML_TYPE_BOGUS: |
| 683 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 684 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 685 | "Internal opcode=%X type Op=%p\n", |
| 686 | walk_state->opcode, op)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | break; |
| 688 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 689 | default: |
| 690 | |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 691 | ACPI_ERROR((AE_INFO, |
| 692 | "Unimplemented opcode, class=%X type=%X Opcode=%X Op=%p", |
| 693 | op_class, op_type, op->common.aml_opcode, |
| 694 | op)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 695 | |
| 696 | status = AE_NOT_IMPLEMENTED; |
| 697 | break; |
| 698 | } |
| 699 | } |
| 700 | |
| 701 | /* |
| 702 | * ACPI 2.0 support for 64-bit integers: Truncate numeric |
| 703 | * result value if we are executing from a 32-bit ACPI table |
| 704 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 705 | acpi_ex_truncate_for32bit_table(walk_state->result_obj); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 706 | |
| 707 | /* |
| 708 | * Check if we just completed the evaluation of a |
| 709 | * conditional predicate |
| 710 | */ |
| 711 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 712 | if ((ACPI_SUCCESS(status)) && |
| 713 | (walk_state->control_state) && |
| 714 | (walk_state->control_state->common.state == |
| 715 | ACPI_CONTROL_PREDICATE_EXECUTING) && |
| 716 | (walk_state->control_state->control.predicate_op == op)) { |
| 717 | status = |
| 718 | acpi_ds_get_predicate_value(walk_state, |
| 719 | walk_state->result_obj); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | walk_state->result_obj = NULL; |
| 721 | } |
| 722 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 723 | cleanup: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | if (walk_state->result_obj) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 726 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 727 | /* Break to debugger to display result */ |
| 728 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 729 | ACPI_DEBUGGER_EXEC(acpi_db_display_result_object |
| 730 | (walk_state->result_obj, walk_state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 731 | |
| 732 | /* |
| 733 | * Delete the result op if and only if: |
| 734 | * Parent will not use the result -- such as any |
| 735 | * non-nested type2 op in a method (parent will be method) |
| 736 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 737 | acpi_ds_delete_result_if_not_used(op, walk_state->result_obj, |
| 738 | walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 739 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | #ifdef _UNDER_DEVELOPMENT |
| 741 | |
| 742 | if (walk_state->parser_state.aml == walk_state->parser_state.aml_end) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 743 | acpi_db_method_end(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 744 | } |
| 745 | #endif |
| 746 | |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 747 | /* Invoke exception handler on error */ |
| 748 | |
| 749 | if (ACPI_FAILURE(status)) { |
| 750 | status = acpi_ds_method_error(status, walk_state); |
| 751 | } |
| 752 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | /* Always clear the object stack */ |
| 754 | |
| 755 | walk_state->num_operands = 0; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 756 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 757 | } |