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> |
| 52 | #include <acpi/acdisasm.h> |
| 53 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | #define _COMPONENT ACPI_DISPATCHER |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 55 | ACPI_MODULE_NAME("dswexec") |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | |
| 57 | /* |
| 58 | * Dispatch table for opcode classes |
| 59 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 60 | static ACPI_EXECUTE_OP acpi_gbl_op_type_dispatch[] = { |
| 61 | acpi_ex_opcode_0A_0T_1R, |
| 62 | acpi_ex_opcode_1A_0T_0R, |
| 63 | acpi_ex_opcode_1A_0T_1R, |
| 64 | acpi_ex_opcode_1A_1T_0R, |
| 65 | acpi_ex_opcode_1A_1T_1R, |
| 66 | acpi_ex_opcode_2A_0T_0R, |
| 67 | acpi_ex_opcode_2A_0T_1R, |
| 68 | acpi_ex_opcode_2A_1T_1R, |
| 69 | acpi_ex_opcode_2A_2T_1R, |
| 70 | acpi_ex_opcode_3A_0T_0R, |
| 71 | acpi_ex_opcode_3A_1T_1R, |
| 72 | acpi_ex_opcode_6A_0T_1R |
| 73 | }; |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 74 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | /***************************************************************************** |
| 76 | * |
| 77 | * FUNCTION: acpi_ds_get_predicate_value |
| 78 | * |
| 79 | * PARAMETERS: walk_state - Current state of the parse tree walk |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 80 | * result_obj - if non-zero, pop result from result stack |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | * |
| 82 | * RETURN: Status |
| 83 | * |
| 84 | * DESCRIPTION: Get the result of a predicate evaluation |
| 85 | * |
| 86 | ****************************************************************************/ |
| 87 | |
| 88 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 89 | acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state, |
| 90 | union acpi_operand_object *result_obj) |
| 91 | { |
| 92 | acpi_status status = AE_OK; |
| 93 | union acpi_operand_object *obj_desc; |
| 94 | union acpi_operand_object *local_obj_desc = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 96 | ACPI_FUNCTION_TRACE_PTR("ds_get_predicate_value", walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | |
| 98 | walk_state->control_state->common.state = 0; |
| 99 | |
| 100 | if (result_obj) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 101 | status = acpi_ds_result_pop(&obj_desc, walk_state); |
| 102 | if (ACPI_FAILURE(status)) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame^] | 103 | ACPI_EXCEPTION((AE_INFO, status, |
| 104 | "Could not get result from predicate evaluation")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 106 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 108 | } else { |
| 109 | status = acpi_ds_create_operand(walk_state, walk_state->op, 0); |
| 110 | if (ACPI_FAILURE(status)) { |
| 111 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | } |
| 113 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 114 | status = |
| 115 | acpi_ex_resolve_to_value(&walk_state->operands[0], |
| 116 | walk_state); |
| 117 | if (ACPI_FAILURE(status)) { |
| 118 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | } |
| 120 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 121 | obj_desc = walk_state->operands[0]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | } |
| 123 | |
| 124 | if (!obj_desc) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame^] | 125 | ACPI_ERROR((AE_INFO, |
| 126 | "No predicate obj_desc=%p State=%p", |
| 127 | obj_desc, walk_state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 129 | return_ACPI_STATUS(AE_AML_NO_OPERAND); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | } |
| 131 | |
| 132 | /* |
| 133 | * Result of predicate evaluation must be an Integer |
| 134 | * object. Implicitly convert the argument if necessary. |
| 135 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 136 | status = acpi_ex_convert_to_integer(obj_desc, &local_obj_desc, 16); |
| 137 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | goto cleanup; |
| 139 | } |
| 140 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 141 | if (ACPI_GET_OBJECT_TYPE(local_obj_desc) != ACPI_TYPE_INTEGER) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame^] | 142 | ACPI_ERROR((AE_INFO, |
| 143 | "Bad predicate (not an integer) obj_desc=%p State=%p Type=%X", |
| 144 | obj_desc, walk_state, |
| 145 | ACPI_GET_OBJECT_TYPE(obj_desc))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | |
| 147 | status = AE_AML_OPERAND_TYPE; |
| 148 | goto cleanup; |
| 149 | } |
| 150 | |
| 151 | /* Truncate the predicate to 32-bits if necessary */ |
| 152 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 153 | acpi_ex_truncate_for32bit_table(local_obj_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | |
| 155 | /* |
| 156 | * Save the result of the predicate evaluation on |
| 157 | * the control stack |
| 158 | */ |
| 159 | if (local_obj_desc->integer.value) { |
| 160 | walk_state->control_state->common.value = TRUE; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 161 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | /* |
| 163 | * Predicate is FALSE, we will just toss the |
| 164 | * rest of the package |
| 165 | */ |
| 166 | walk_state->control_state->common.value = FALSE; |
| 167 | status = AE_CTRL_FALSE; |
| 168 | } |
| 169 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 170 | cleanup: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 172 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Completed a predicate eval=%X Op=%p\n", |
| 173 | walk_state->control_state->common.value, |
| 174 | walk_state->op)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 176 | /* Break to debugger to display result */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 178 | ACPI_DEBUGGER_EXEC(acpi_db_display_result_object |
| 179 | (local_obj_desc, walk_state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | |
| 181 | /* |
| 182 | * Delete the predicate result object (we know that |
| 183 | * we don't need it anymore) |
| 184 | */ |
| 185 | if (local_obj_desc != obj_desc) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 186 | acpi_ut_remove_reference(local_obj_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 188 | acpi_ut_remove_reference(obj_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | |
| 190 | walk_state->control_state->common.state = ACPI_CONTROL_NORMAL; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 191 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | } |
| 193 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | /***************************************************************************** |
| 195 | * |
| 196 | * FUNCTION: acpi_ds_exec_begin_op |
| 197 | * |
| 198 | * PARAMETERS: walk_state - Current state of the parse tree walk |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 199 | * out_op - Where to return op if a new one is created |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | * |
| 201 | * RETURN: Status |
| 202 | * |
| 203 | * DESCRIPTION: Descending callback used during the execution of control |
| 204 | * methods. This is where most operators and operands are |
| 205 | * dispatched to the interpreter. |
| 206 | * |
| 207 | ****************************************************************************/ |
| 208 | |
| 209 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 210 | acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state, |
| 211 | union acpi_parse_object **out_op) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 213 | union acpi_parse_object *op; |
| 214 | acpi_status status = AE_OK; |
| 215 | u32 opcode_class; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 217 | ACPI_FUNCTION_TRACE_PTR("ds_exec_begin_op", walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | |
| 219 | op = walk_state->op; |
| 220 | if (!op) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 221 | status = acpi_ds_load2_begin_op(walk_state, out_op); |
| 222 | if (ACPI_FAILURE(status)) { |
| 223 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | } |
| 225 | |
| 226 | op = *out_op; |
| 227 | walk_state->op = op; |
| 228 | walk_state->opcode = op->common.aml_opcode; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 229 | walk_state->op_info = |
| 230 | acpi_ps_get_opcode_info(op->common.aml_opcode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 232 | if (acpi_ns_opens_scope(walk_state->op_info->object_type)) { |
| 233 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 234 | "(%s) Popping scope for Op %p\n", |
| 235 | acpi_ut_get_type_name(walk_state-> |
| 236 | op_info-> |
| 237 | object_type), |
| 238 | op)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 240 | status = acpi_ds_scope_stack_pop(walk_state); |
| 241 | if (ACPI_FAILURE(status)) { |
| 242 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | } |
| 244 | } |
| 245 | } |
| 246 | |
| 247 | if (op == walk_state->origin) { |
| 248 | if (out_op) { |
| 249 | *out_op = op; |
| 250 | } |
| 251 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 252 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | } |
| 254 | |
| 255 | /* |
| 256 | * If the previous opcode was a conditional, this opcode |
| 257 | * must be the beginning of the associated predicate. |
| 258 | * Save this knowledge in the current scope descriptor |
| 259 | */ |
| 260 | if ((walk_state->control_state) && |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 261 | (walk_state->control_state->common.state == |
| 262 | ACPI_CONTROL_CONDITIONAL_EXECUTING)) { |
| 263 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 264 | "Exec predicate Op=%p State=%p\n", op, |
| 265 | walk_state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 267 | walk_state->control_state->common.state = |
| 268 | ACPI_CONTROL_PREDICATE_EXECUTING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | |
| 270 | /* Save start of predicate */ |
| 271 | |
| 272 | walk_state->control_state->control.predicate_op = op; |
| 273 | } |
| 274 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | opcode_class = walk_state->op_info->class; |
| 276 | |
| 277 | /* We want to send namepaths to the load code */ |
| 278 | |
| 279 | if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) { |
| 280 | opcode_class = AML_CLASS_NAMED_OBJECT; |
| 281 | } |
| 282 | |
| 283 | /* |
| 284 | * Handle the opcode based upon the opcode type |
| 285 | */ |
| 286 | switch (opcode_class) { |
| 287 | case AML_CLASS_CONTROL: |
| 288 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 289 | status = acpi_ds_result_stack_push(walk_state); |
| 290 | if (ACPI_FAILURE(status)) { |
| 291 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | } |
| 293 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 294 | status = acpi_ds_exec_begin_control_op(walk_state, op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | break; |
| 296 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | case AML_CLASS_NAMED_OBJECT: |
| 298 | |
| 299 | if (walk_state->walk_type == ACPI_WALK_METHOD) { |
| 300 | /* |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 301 | * Found a named object declaration during method execution; |
| 302 | * we must enter this object into the namespace. The created |
| 303 | * object is temporary and will be deleted upon completion of |
| 304 | * the execution of this method. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 306 | status = acpi_ds_load2_begin_op(walk_state, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | } |
| 308 | |
| 309 | if (op->common.aml_opcode == AML_REGION_OP) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 310 | status = acpi_ds_result_stack_push(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | } |
| 312 | break; |
| 313 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | case AML_CLASS_EXECUTE: |
| 315 | case AML_CLASS_CREATE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | /* |
| 317 | * Most operators with arguments. |
| 318 | * Start a new result/operand state |
| 319 | */ |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 320 | if (walk_state->opcode != AML_CREATE_FIELD_OP) { |
| 321 | status = acpi_ds_result_stack_push(walk_state); |
| 322 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | break; |
| 324 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | default: |
| 326 | break; |
| 327 | } |
| 328 | |
| 329 | /* Nothing to do here during method execution */ |
| 330 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 331 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | } |
| 333 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | /***************************************************************************** |
| 335 | * |
| 336 | * FUNCTION: acpi_ds_exec_end_op |
| 337 | * |
| 338 | * PARAMETERS: walk_state - Current state of the parse tree walk |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | * |
| 340 | * RETURN: Status |
| 341 | * |
| 342 | * DESCRIPTION: Ascending callback used during the execution of control |
| 343 | * methods. The only thing we really need to do here is to |
| 344 | * notice the beginning of IF, ELSE, and WHILE blocks. |
| 345 | * |
| 346 | ****************************************************************************/ |
| 347 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 348 | 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] | 349 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 350 | union acpi_parse_object *op; |
| 351 | acpi_status status = AE_OK; |
| 352 | u32 op_type; |
| 353 | u32 op_class; |
| 354 | union acpi_parse_object *next_op; |
| 355 | union acpi_parse_object *first_arg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 357 | ACPI_FUNCTION_TRACE_PTR("ds_exec_end_op", walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 359 | op = walk_state->op; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | op_type = walk_state->op_info->type; |
| 361 | op_class = walk_state->op_info->class; |
| 362 | |
| 363 | if (op_class == AML_CLASS_UNKNOWN) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame^] | 364 | ACPI_ERROR((AE_INFO, "Unknown opcode %X", |
| 365 | op->common.aml_opcode)); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 366 | return_ACPI_STATUS(AE_NOT_IMPLEMENTED); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | } |
| 368 | |
| 369 | first_arg = op->common.value.arg; |
| 370 | |
| 371 | /* Init the walk state */ |
| 372 | |
| 373 | walk_state->num_operands = 0; |
| 374 | walk_state->return_desc = NULL; |
| 375 | walk_state->result_obj = NULL; |
| 376 | |
| 377 | /* Call debugger for single step support (DEBUG build only) */ |
| 378 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 379 | ACPI_DEBUGGER_EXEC(status = |
| 380 | acpi_db_single_step(walk_state, op, op_class)); |
| 381 | ACPI_DEBUGGER_EXEC(if (ACPI_FAILURE(status)) { |
| 382 | return_ACPI_STATUS(status);} |
| 383 | ) ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | |
| 385 | /* Decode the Opcode Class */ |
| 386 | |
| 387 | switch (op_class) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 388 | case AML_CLASS_ARGUMENT: /* constants, literals, etc. - do nothing */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | break; |
| 390 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 391 | case AML_CLASS_EXECUTE: /* most operators with arguments */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | |
| 393 | /* Build resolved operand stack */ |
| 394 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 395 | status = acpi_ds_create_operands(walk_state, first_arg); |
| 396 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | goto cleanup; |
| 398 | } |
| 399 | |
| 400 | /* Done with this result state (Now that operand stack is built) */ |
| 401 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 402 | status = acpi_ds_result_stack_pop(walk_state); |
| 403 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | goto cleanup; |
| 405 | } |
| 406 | |
| 407 | /* |
| 408 | * All opcodes require operand resolution, with the only exceptions |
| 409 | * being the object_type and size_of operators. |
| 410 | */ |
| 411 | if (!(walk_state->op_info->flags & AML_NO_OPERAND_RESOLVE)) { |
| 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, |
| 426 | "after ex_resolve_operands"); |
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 | /* |
| 440 | * Treat constructs of the form "Store(local_x,local_x)" as noops when the |
| 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)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | /* On error, clear all resolved operands */ |
| 552 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 553 | acpi_ds_clear_operands(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 554 | break; |
| 555 | } |
| 556 | |
| 557 | /* |
| 558 | * Tell the walk loop to preempt this running method and |
| 559 | * execute the new method |
| 560 | */ |
| 561 | status = AE_CTRL_TRANSFER; |
| 562 | |
| 563 | /* |
| 564 | * Return now; we don't want to disturb anything, |
| 565 | * especially the operand count! |
| 566 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 567 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | |
| 569 | case AML_TYPE_CREATE_FIELD: |
| 570 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 571 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 572 | "Executing create_field Buffer/Index Op=%p\n", |
| 573 | op)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 575 | status = acpi_ds_load2_end_op(walk_state); |
| 576 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 577 | break; |
| 578 | } |
| 579 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 580 | status = |
| 581 | acpi_ds_eval_buffer_field_operands(walk_state, op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 582 | break; |
| 583 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 584 | case AML_TYPE_CREATE_OBJECT: |
| 585 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 586 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 587 | "Executing create_object (Buffer/Package) Op=%p\n", |
| 588 | op)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | |
| 590 | switch (op->common.parent->common.aml_opcode) { |
| 591 | case AML_NAME_OP: |
| 592 | |
| 593 | /* |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 594 | * Put the Node on the object stack (Contains the ACPI Name |
| 595 | * of this object) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 597 | walk_state->operands[0] = |
| 598 | (void *)op->common.parent->common.node; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | walk_state->num_operands = 1; |
| 600 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 601 | status = acpi_ds_create_node(walk_state, |
| 602 | op->common.parent-> |
| 603 | common.node, |
| 604 | op->common.parent); |
| 605 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | break; |
| 607 | } |
| 608 | |
| 609 | /* Fall through */ |
| 610 | /*lint -fallthrough */ |
| 611 | |
| 612 | case AML_INT_EVAL_SUBTREE_OP: |
| 613 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 614 | status = |
| 615 | acpi_ds_eval_data_object_operands |
| 616 | (walk_state, op, |
| 617 | acpi_ns_get_attached_object(op->common. |
| 618 | parent->common. |
| 619 | node)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | break; |
| 621 | |
| 622 | default: |
| 623 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 624 | status = |
| 625 | acpi_ds_eval_data_object_operands |
| 626 | (walk_state, op, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 627 | break; |
| 628 | } |
| 629 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 630 | /* Done with result state (Now that operand stack is built) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 631 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 632 | status = acpi_ds_result_stack_pop(walk_state); |
| 633 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 634 | goto cleanup; |
| 635 | } |
| 636 | |
| 637 | /* |
| 638 | * If a result object was returned from above, push it on the |
| 639 | * current result stack |
| 640 | */ |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 641 | if (walk_state->result_obj) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 642 | status = |
| 643 | acpi_ds_result_push(walk_state->result_obj, |
| 644 | walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 645 | } |
| 646 | break; |
| 647 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | case AML_TYPE_NAMED_FIELD: |
| 649 | case AML_TYPE_NAMED_COMPLEX: |
| 650 | case AML_TYPE_NAMED_SIMPLE: |
| 651 | case AML_TYPE_NAMED_NO_OBJ: |
| 652 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 653 | status = acpi_ds_load2_end_op(walk_state); |
| 654 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 655 | break; |
| 656 | } |
| 657 | |
| 658 | if (op->common.aml_opcode == AML_REGION_OP) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 659 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 660 | "Executing op_region Address/Length Op=%p\n", |
| 661 | op)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 662 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 663 | status = |
| 664 | acpi_ds_eval_region_operands(walk_state, |
| 665 | op); |
| 666 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | break; |
| 668 | } |
| 669 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 670 | status = acpi_ds_result_stack_pop(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | } |
| 672 | |
| 673 | break; |
| 674 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | case AML_TYPE_UNDEFINED: |
| 676 | |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame^] | 677 | ACPI_ERROR((AE_INFO, |
| 678 | "Undefined opcode type Op=%p", op)); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 679 | return_ACPI_STATUS(AE_NOT_IMPLEMENTED); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | |
| 681 | case AML_TYPE_BOGUS: |
| 682 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 683 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, |
| 684 | "Internal opcode=%X type Op=%p\n", |
| 685 | walk_state->opcode, op)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | break; |
| 687 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 688 | default: |
| 689 | |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame^] | 690 | ACPI_ERROR((AE_INFO, |
| 691 | "Unimplemented opcode, class=%X type=%X Opcode=%X Op=%p", |
| 692 | op_class, op_type, op->common.aml_opcode, |
| 693 | op)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | |
| 695 | status = AE_NOT_IMPLEMENTED; |
| 696 | break; |
| 697 | } |
| 698 | } |
| 699 | |
| 700 | /* |
| 701 | * ACPI 2.0 support for 64-bit integers: Truncate numeric |
| 702 | * result value if we are executing from a 32-bit ACPI table |
| 703 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 704 | acpi_ex_truncate_for32bit_table(walk_state->result_obj); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | |
| 706 | /* |
| 707 | * Check if we just completed the evaluation of a |
| 708 | * conditional predicate |
| 709 | */ |
| 710 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 711 | if ((ACPI_SUCCESS(status)) && |
| 712 | (walk_state->control_state) && |
| 713 | (walk_state->control_state->common.state == |
| 714 | ACPI_CONTROL_PREDICATE_EXECUTING) && |
| 715 | (walk_state->control_state->control.predicate_op == op)) { |
| 716 | status = |
| 717 | acpi_ds_get_predicate_value(walk_state, |
| 718 | walk_state->result_obj); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 719 | walk_state->result_obj = NULL; |
| 720 | } |
| 721 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 722 | cleanup: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 723 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | if (walk_state->result_obj) { |
| 725 | /* Break to debugger to display result */ |
| 726 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 727 | ACPI_DEBUGGER_EXEC(acpi_db_display_result_object |
| 728 | (walk_state->result_obj, walk_state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 729 | |
| 730 | /* |
| 731 | * Delete the result op if and only if: |
| 732 | * Parent will not use the result -- such as any |
| 733 | * non-nested type2 op in a method (parent will be method) |
| 734 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 735 | acpi_ds_delete_result_if_not_used(op, walk_state->result_obj, |
| 736 | walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 738 | #ifdef _UNDER_DEVELOPMENT |
| 739 | |
| 740 | if (walk_state->parser_state.aml == walk_state->parser_state.aml_end) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 741 | acpi_db_method_end(walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 742 | } |
| 743 | #endif |
| 744 | |
Bob Moore | defba1d | 2005-12-16 17:05:00 -0500 | [diff] [blame] | 745 | /* Invoke exception handler on error */ |
| 746 | |
| 747 | if (ACPI_FAILURE(status)) { |
| 748 | status = acpi_ds_method_error(status, walk_state); |
| 749 | } |
| 750 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 751 | /* Always clear the object stack */ |
| 752 | |
| 753 | walk_state->num_operands = 0; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 754 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 755 | } |