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marcus.erl |
/******************************************************************************
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*
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* Module Name: dswexec - Dispatcher method execution callbacks;
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* dispatch to interpreter.
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2007, R. Byron Moore
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#include <acpi/acpi.h>
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#include <acpi/acparser.h>
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#include <acpi/amlcode.h>
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#include <acpi/acdispat.h>
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#include <acpi/acinterp.h>
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#include <acpi/acnamesp.h>
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#include <acpi/acdebug.h>
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#define _COMPONENT ACPI_DISPATCHER
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ACPI_MODULE_NAME("dswexec")
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/*
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* Dispatch table for opcode classes
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*/
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static ACPI_EXECUTE_OP acpi_gbl_op_type_dispatch[] = {
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acpi_ex_opcode_0A_0T_1R,
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acpi_ex_opcode_1A_0T_0R,
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acpi_ex_opcode_1A_0T_1R,
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acpi_ex_opcode_1A_1T_0R,
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acpi_ex_opcode_1A_1T_1R,
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acpi_ex_opcode_2A_0T_0R,
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acpi_ex_opcode_2A_0T_1R,
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acpi_ex_opcode_2A_1T_1R,
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acpi_ex_opcode_2A_2T_1R,
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acpi_ex_opcode_3A_0T_0R,
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acpi_ex_opcode_3A_1T_1R,
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acpi_ex_opcode_6A_0T_1R
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};
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/*****************************************************************************
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*
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* FUNCTION: acpi_ds_get_predicate_value
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*
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* PARAMETERS: walk_state - Current state of the parse tree walk
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* result_obj - if non-zero, pop result from result stack
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*
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* RETURN: Status
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*
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* DESCRIPTION: Get the result of a predicate evaluation
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*
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****************************************************************************/
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acpi_status
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acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state,
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union acpi_operand_object *result_obj)
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{
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acpi_status status = AE_OK;
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union acpi_operand_object *obj_desc;
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union acpi_operand_object *local_obj_desc = NULL;
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ACPI_FUNCTION_TRACE_PTR(ds_get_predicate_value, walk_state);
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walk_state->control_state->common.state = 0;
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if (result_obj) {
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status = acpi_ds_result_pop(&obj_desc, walk_state);
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if (ACPI_FAILURE(status)) {
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ACPI_EXCEPTION((AE_INFO, status,
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"Could not get result from predicate evaluation"));
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return_ACPI_STATUS(status);
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}
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} else {
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status = acpi_ds_create_operand(walk_state, walk_state->op, 0);
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if (ACPI_FAILURE(status)) {
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return_ACPI_STATUS(status);
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}
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status =
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acpi_ex_resolve_to_value(&walk_state->operands[0],
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walk_state);
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if (ACPI_FAILURE(status)) {
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return_ACPI_STATUS(status);
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}
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obj_desc = walk_state->operands[0];
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}
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if (!obj_desc) {
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ACPI_ERROR((AE_INFO,
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"No predicate ObjDesc=%p State=%p",
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obj_desc, walk_state));
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return_ACPI_STATUS(AE_AML_NO_OPERAND);
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}
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/*
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* Result of predicate evaluation must be an Integer
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* object. Implicitly convert the argument if necessary.
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*/
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status = acpi_ex_convert_to_integer(obj_desc, &local_obj_desc, 16);
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if (ACPI_FAILURE(status)) {
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goto cleanup;
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}
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if (ACPI_GET_OBJECT_TYPE(local_obj_desc) != ACPI_TYPE_INTEGER) {
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ACPI_ERROR((AE_INFO,
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"Bad predicate (not an integer) ObjDesc=%p State=%p Type=%X",
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obj_desc, walk_state,
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ACPI_GET_OBJECT_TYPE(obj_desc)));
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status = AE_AML_OPERAND_TYPE;
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goto cleanup;
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}
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/* Truncate the predicate to 32-bits if necessary */
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acpi_ex_truncate_for32bit_table(local_obj_desc);
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/*
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* Save the result of the predicate evaluation on
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* the control stack
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*/
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if (local_obj_desc->integer.value) {
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walk_state->control_state->common.value = TRUE;
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} else {
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/*
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* Predicate is FALSE, we will just toss the
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* rest of the package
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*/
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walk_state->control_state->common.value = FALSE;
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status = AE_CTRL_FALSE;
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}
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cleanup:
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ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Completed a predicate eval=%X Op=%p\n",
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walk_state->control_state->common.value,
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walk_state->op));
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/* Break to debugger to display result */
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ACPI_DEBUGGER_EXEC(acpi_db_display_result_object
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(local_obj_desc, walk_state));
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/*
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* Delete the predicate result object (we know that
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* we don't need it anymore)
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*/
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if (local_obj_desc != obj_desc) {
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acpi_ut_remove_reference(local_obj_desc);
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}
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acpi_ut_remove_reference(obj_desc);
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walk_state->control_state->common.state = ACPI_CONTROL_NORMAL;
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return_ACPI_STATUS(status);
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}
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| 193 |
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/*****************************************************************************
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*
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| 195 |
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* FUNCTION: acpi_ds_exec_begin_op
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*
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* PARAMETERS: walk_state - Current state of the parse tree walk
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| 198 |
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* out_op - Where to return op if a new one is created
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| 199 |
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*
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| 200 |
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* RETURN: Status
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| 201 |
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*
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| 202 |
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* DESCRIPTION: Descending callback used during the execution of control
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| 203 |
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* methods. This is where most operators and operands are
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* dispatched to the interpreter.
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| 205 |
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*
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| 206 |
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****************************************************************************/
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| 207 |
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|
|
| 208 |
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acpi_status
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| 209 |
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acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state,
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| 210 |
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union acpi_parse_object **out_op)
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| 211 |
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{
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| 212 |
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union acpi_parse_object *op;
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| 213 |
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acpi_status status = AE_OK;
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| 214 |
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u32 opcode_class;
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| 215 |
|
|
|
| 216 |
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ACPI_FUNCTION_TRACE_PTR(ds_exec_begin_op, walk_state);
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| 217 |
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| 218 |
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op = walk_state->op;
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| 219 |
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if (!op) {
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| 220 |
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status = acpi_ds_load2_begin_op(walk_state, out_op);
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| 221 |
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if (ACPI_FAILURE(status)) {
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| 222 |
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goto error_exit;
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| 223 |
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}
|
| 224 |
|
|
|
| 225 |
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op = *out_op;
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| 226 |
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walk_state->op = op;
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| 227 |
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walk_state->opcode = op->common.aml_opcode;
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| 228 |
|
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walk_state->op_info =
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| 229 |
|
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acpi_ps_get_opcode_info(op->common.aml_opcode);
|
| 230 |
|
|
|
| 231 |
|
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if (acpi_ns_opens_scope(walk_state->op_info->object_type)) {
|
| 232 |
|
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ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
|
| 233 |
|
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"(%s) Popping scope for Op %p\n",
|
| 234 |
|
|
acpi_ut_get_type_name(walk_state->
|
| 235 |
|
|
op_info->
|
| 236 |
|
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object_type),
|
| 237 |
|
|
op));
|
| 238 |
|
|
|
| 239 |
|
|
status = acpi_ds_scope_stack_pop(walk_state);
|
| 240 |
|
|
if (ACPI_FAILURE(status)) {
|
| 241 |
|
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goto error_exit;
|
| 242 |
|
|
}
|
| 243 |
|
|
}
|
| 244 |
|
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}
|
| 245 |
|
|
|
| 246 |
|
|
if (op == walk_state->origin) {
|
| 247 |
|
|
if (out_op) {
|
| 248 |
|
|
*out_op = op;
|
| 249 |
|
|
}
|
| 250 |
|
|
|
| 251 |
|
|
return_ACPI_STATUS(AE_OK);
|
| 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) &&
|
| 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));
|
| 265 |
|
|
|
| 266 |
|
|
walk_state->control_state->common.state =
|
| 267 |
|
|
ACPI_CONTROL_PREDICATE_EXECUTING;
|
| 268 |
|
|
|
| 269 |
|
|
/* Save start of predicate */
|
| 270 |
|
|
|
| 271 |
|
|
walk_state->control_state->control.predicate_op = op;
|
| 272 |
|
|
}
|
| 273 |
|
|
|
| 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 |
|
|
|
| 288 |
|
|
status = acpi_ds_result_stack_push(walk_state);
|
| 289 |
|
|
if (ACPI_FAILURE(status)) {
|
| 290 |
|
|
goto error_exit;
|
| 291 |
|
|
}
|
| 292 |
|
|
|
| 293 |
|
|
status = acpi_ds_exec_begin_control_op(walk_state, op);
|
| 294 |
|
|
break;
|
| 295 |
|
|
|
| 296 |
|
|
case AML_CLASS_NAMED_OBJECT:
|
| 297 |
|
|
|
| 298 |
|
|
if (walk_state->walk_type & ACPI_WALK_METHOD) {
|
| 299 |
|
|
/*
|
| 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.
|
| 304 |
|
|
*/
|
| 305 |
|
|
status = acpi_ds_load2_begin_op(walk_state, NULL);
|
| 306 |
|
|
}
|
| 307 |
|
|
|
| 308 |
|
|
if (op->common.aml_opcode == AML_REGION_OP) {
|
| 309 |
|
|
status = acpi_ds_result_stack_push(walk_state);
|
| 310 |
|
|
}
|
| 311 |
|
|
break;
|
| 312 |
|
|
|
| 313 |
|
|
case AML_CLASS_EXECUTE:
|
| 314 |
|
|
case AML_CLASS_CREATE:
|
| 315 |
|
|
/*
|
| 316 |
|
|
* Most operators with arguments (except create_xxx_field operators)
|
| 317 |
|
|
* Start a new result/operand state
|
| 318 |
|
|
*/
|
| 319 |
|
|
if (walk_state->op_info->object_type != ACPI_TYPE_BUFFER_FIELD) {
|
| 320 |
|
|
status = acpi_ds_result_stack_push(walk_state);
|
| 321 |
|
|
}
|
| 322 |
|
|
break;
|
| 323 |
|
|
|
| 324 |
|
|
default:
|
| 325 |
|
|
break;
|
| 326 |
|
|
}
|
| 327 |
|
|
|
| 328 |
|
|
/* Nothing to do here during method execution */
|
| 329 |
|
|
|
| 330 |
|
|
return_ACPI_STATUS(status);
|
| 331 |
|
|
|
| 332 |
|
|
error_exit:
|
| 333 |
|
|
status = acpi_ds_method_error(status, walk_state);
|
| 334 |
|
|
return_ACPI_STATUS(status);
|
| 335 |
|
|
}
|
| 336 |
|
|
|
| 337 |
|
|
/*****************************************************************************
|
| 338 |
|
|
*
|
| 339 |
|
|
* FUNCTION: acpi_ds_exec_end_op
|
| 340 |
|
|
*
|
| 341 |
|
|
* PARAMETERS: walk_state - Current state of the parse tree walk
|
| 342 |
|
|
*
|
| 343 |
|
|
* RETURN: Status
|
| 344 |
|
|
*
|
| 345 |
|
|
* DESCRIPTION: Ascending callback used during the execution of control
|
| 346 |
|
|
* methods. The only thing we really need to do here is to
|
| 347 |
|
|
* notice the beginning of IF, ELSE, and WHILE blocks.
|
| 348 |
|
|
*
|
| 349 |
|
|
****************************************************************************/
|
| 350 |
|
|
|
| 351 |
|
|
acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
|
| 352 |
|
|
{
|
| 353 |
|
|
union acpi_parse_object *op;
|
| 354 |
|
|
acpi_status status = AE_OK;
|
| 355 |
|
|
u32 op_type;
|
| 356 |
|
|
u32 op_class;
|
| 357 |
|
|
union acpi_parse_object *next_op;
|
| 358 |
|
|
union acpi_parse_object *first_arg;
|
| 359 |
|
|
|
| 360 |
|
|
ACPI_FUNCTION_TRACE_PTR(ds_exec_end_op, walk_state);
|
| 361 |
|
|
|
| 362 |
|
|
op = walk_state->op;
|
| 363 |
|
|
op_type = walk_state->op_info->type;
|
| 364 |
|
|
op_class = walk_state->op_info->class;
|
| 365 |
|
|
|
| 366 |
|
|
if (op_class == AML_CLASS_UNKNOWN) {
|
| 367 |
|
|
ACPI_ERROR((AE_INFO, "Unknown opcode %X",
|
| 368 |
|
|
op->common.aml_opcode));
|
| 369 |
|
|
return_ACPI_STATUS(AE_NOT_IMPLEMENTED);
|
| 370 |
|
|
}
|
| 371 |
|
|
|
| 372 |
|
|
first_arg = op->common.value.arg;
|
| 373 |
|
|
|
| 374 |
|
|
/* Init the walk state */
|
| 375 |
|
|
|
| 376 |
|
|
walk_state->num_operands = 0;
|
| 377 |
|
|
walk_state->return_desc = NULL;
|
| 378 |
|
|
walk_state->result_obj = NULL;
|
| 379 |
|
|
|
| 380 |
|
|
/* Call debugger for single step support (DEBUG build only) */
|
| 381 |
|
|
|
| 382 |
|
|
ACPI_DEBUGGER_EXEC(status =
|
| 383 |
|
|
acpi_db_single_step(walk_state, op, op_class));
|
| 384 |
|
|
ACPI_DEBUGGER_EXEC(if (ACPI_FAILURE(status)) {
|
| 385 |
|
|
return_ACPI_STATUS(status);}
|
| 386 |
|
|
) ;
|
| 387 |
|
|
|
| 388 |
|
|
/* Decode the Opcode Class */
|
| 389 |
|
|
|
| 390 |
|
|
switch (op_class) {
|
| 391 |
|
|
case AML_CLASS_ARGUMENT: /* constants, literals, etc. - do nothing */
|
| 392 |
|
|
break;
|
| 393 |
|
|
|
| 394 |
|
|
case AML_CLASS_EXECUTE: /* most operators with arguments */
|
| 395 |
|
|
|
| 396 |
|
|
/* Build resolved operand stack */
|
| 397 |
|
|
|
| 398 |
|
|
status = acpi_ds_create_operands(walk_state, first_arg);
|
| 399 |
|
|
if (ACPI_FAILURE(status)) {
|
| 400 |
|
|
goto cleanup;
|
| 401 |
|
|
}
|
| 402 |
|
|
|
| 403 |
|
|
/* Done with this result state (Now that operand stack is built) */
|
| 404 |
|
|
|
| 405 |
|
|
status = acpi_ds_result_stack_pop(walk_state);
|
| 406 |
|
|
if (ACPI_FAILURE(status)) {
|
| 407 |
|
|
goto cleanup;
|
| 408 |
|
|
}
|
| 409 |
|
|
|
| 410 |
|
|
/*
|
| 411 |
|
|
* All opcodes require operand resolution, with the only exceptions
|
| 412 |
|
|
* being the object_type and size_of operators.
|
| 413 |
|
|
*/
|
| 414 |
|
|
if (!(walk_state->op_info->flags & AML_NO_OPERAND_RESOLVE)) {
|
| 415 |
|
|
|
| 416 |
|
|
/* Resolve all operands */
|
| 417 |
|
|
|
| 418 |
|
|
status = acpi_ex_resolve_operands(walk_state->opcode,
|
| 419 |
|
|
&(walk_state->
|
| 420 |
|
|
operands
|
| 421 |
|
|
[walk_state->
|
| 422 |
|
|
num_operands - 1]),
|
| 423 |
|
|
walk_state);
|
| 424 |
|
|
if (ACPI_SUCCESS(status)) {
|
| 425 |
|
|
ACPI_DUMP_OPERANDS(ACPI_WALK_OPERANDS,
|
| 426 |
|
|
ACPI_IMODE_EXECUTE,
|
| 427 |
|
|
acpi_ps_get_opcode_name
|
| 428 |
|
|
(walk_state->opcode),
|
| 429 |
|
|
walk_state->num_operands,
|
| 430 |
|
|
"after ExResolveOperands");
|
| 431 |
|
|
}
|
| 432 |
|
|
}
|
| 433 |
|
|
|
| 434 |
|
|
if (ACPI_SUCCESS(status)) {
|
| 435 |
|
|
/*
|
| 436 |
|
|
* Dispatch the request to the appropriate interpreter handler
|
| 437 |
|
|
* routine. There is one routine per opcode "type" based upon the
|
| 438 |
|
|
* number of opcode arguments and return type.
|
| 439 |
|
|
*/
|
| 440 |
|
|
status =
|
| 441 |
|
|
acpi_gbl_op_type_dispatch[op_type] (walk_state);
|
| 442 |
|
|
} else {
|
| 443 |
|
|
/*
|
| 444 |
|
|
* Treat constructs of the form "Store(LocalX,LocalX)" as noops when the
|
| 445 |
|
|
* Local is uninitialized.
|
| 446 |
|
|
*/
|
| 447 |
|
|
if ((status == AE_AML_UNINITIALIZED_LOCAL) &&
|
| 448 |
|
|
(walk_state->opcode == AML_STORE_OP) &&
|
| 449 |
|
|
(walk_state->operands[0]->common.type ==
|
| 450 |
|
|
ACPI_TYPE_LOCAL_REFERENCE)
|
| 451 |
|
|
&& (walk_state->operands[1]->common.type ==
|
| 452 |
|
|
ACPI_TYPE_LOCAL_REFERENCE)
|
| 453 |
|
|
&& (walk_state->operands[0]->reference.opcode ==
|
| 454 |
|
|
walk_state->operands[1]->reference.opcode)
|
| 455 |
|
|
&& (walk_state->operands[0]->reference.offset ==
|
| 456 |
|
|
walk_state->operands[1]->reference.offset)) {
|
| 457 |
|
|
status = AE_OK;
|
| 458 |
|
|
} else {
|
| 459 |
|
|
ACPI_EXCEPTION((AE_INFO, status,
|
| 460 |
|
|
"While resolving operands for [%s]",
|
| 461 |
|
|
acpi_ps_get_opcode_name
|
| 462 |
|
|
(walk_state->opcode)));
|
| 463 |
|
|
}
|
| 464 |
|
|
}
|
| 465 |
|
|
|
| 466 |
|
|
/* Always delete the argument objects and clear the operand stack */
|
| 467 |
|
|
|
| 468 |
|
|
acpi_ds_clear_operands(walk_state);
|
| 469 |
|
|
|
| 470 |
|
|
/*
|
| 471 |
|
|
* If a result object was returned from above, push it on the
|
| 472 |
|
|
* current result stack
|
| 473 |
|
|
*/
|
| 474 |
|
|
if (ACPI_SUCCESS(status) && walk_state->result_obj) {
|
| 475 |
|
|
status =
|
| 476 |
|
|
acpi_ds_result_push(walk_state->result_obj,
|
| 477 |
|
|
walk_state);
|
| 478 |
|
|
}
|
| 479 |
|
|
break;
|
| 480 |
|
|
|
| 481 |
|
|
default:
|
| 482 |
|
|
|
| 483 |
|
|
switch (op_type) {
|
| 484 |
|
|
case AML_TYPE_CONTROL: /* Type 1 opcode, IF/ELSE/WHILE/NOOP */
|
| 485 |
|
|
|
| 486 |
|
|
/* 1 Operand, 0 external_result, 0 internal_result */
|
| 487 |
|
|
|
| 488 |
|
|
status = acpi_ds_exec_end_control_op(walk_state, op);
|
| 489 |
|
|
|
| 490 |
|
|
/* Make sure to properly pop the result stack */
|
| 491 |
|
|
|
| 492 |
|
|
if (ACPI_SUCCESS(status)) {
|
| 493 |
|
|
status = acpi_ds_result_stack_pop(walk_state);
|
| 494 |
|
|
} else if (status == AE_CTRL_PENDING) {
|
| 495 |
|
|
status = acpi_ds_result_stack_pop(walk_state);
|
| 496 |
|
|
if (ACPI_SUCCESS(status)) {
|
| 497 |
|
|
status = AE_CTRL_PENDING;
|
| 498 |
|
|
}
|
| 499 |
|
|
}
|
| 500 |
|
|
break;
|
| 501 |
|
|
|
| 502 |
|
|
case AML_TYPE_METHOD_CALL:
|
| 503 |
|
|
|
| 504 |
|
|
/*
|
| 505 |
|
|
* If the method is referenced from within a package
|
| 506 |
|
|
* declaration, it is not a invocation of the method, just
|
| 507 |
|
|
* a reference to it.
|
| 508 |
|
|
*/
|
| 509 |
|
|
if ((op->asl.parent) &&
|
| 510 |
|
|
((op->asl.parent->asl.aml_opcode == AML_PACKAGE_OP)
|
| 511 |
|
|
|| (op->asl.parent->asl.aml_opcode ==
|
| 512 |
|
|
AML_VAR_PACKAGE_OP))) {
|
| 513 |
|
|
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
|
| 514 |
|
|
"Method Reference in a Package, Op=%p\n",
|
| 515 |
|
|
op));
|
| 516 |
|
|
|
| 517 |
|
|
op->common.node =
|
| 518 |
|
|
(struct acpi_namespace_node *)op->asl.value.
|
| 519 |
|
|
arg->asl.node->object;
|
| 520 |
|
|
acpi_ut_add_reference(op->asl.value.arg->asl.
|
| 521 |
|
|
node->object);
|
| 522 |
|
|
return_ACPI_STATUS(AE_OK);
|
| 523 |
|
|
}
|
| 524 |
|
|
|
| 525 |
|
|
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
|
| 526 |
|
|
"Method invocation, Op=%p\n", op));
|
| 527 |
|
|
|
| 528 |
|
|
/*
|
| 529 |
|
|
* (AML_METHODCALL) Op->Asl.Value.Arg->Asl.Node contains
|
| 530 |
|
|
* the method Node pointer
|
| 531 |
|
|
*/
|
| 532 |
|
|
/* next_op points to the op that holds the method name */
|
| 533 |
|
|
|
| 534 |
|
|
next_op = first_arg;
|
| 535 |
|
|
|
| 536 |
|
|
/* next_op points to first argument op */
|
| 537 |
|
|
|
| 538 |
|
|
next_op = next_op->common.next;
|
| 539 |
|
|
|
| 540 |
|
|
/*
|
| 541 |
|
|
* Get the method's arguments and put them on the operand stack
|
| 542 |
|
|
*/
|
| 543 |
|
|
status = acpi_ds_create_operands(walk_state, next_op);
|
| 544 |
|
|
if (ACPI_FAILURE(status)) {
|
| 545 |
|
|
break;
|
| 546 |
|
|
}
|
| 547 |
|
|
|
| 548 |
|
|
/*
|
| 549 |
|
|
* Since the operands will be passed to another control method,
|
| 550 |
|
|
* we must resolve all local references here (Local variables,
|
| 551 |
|
|
* arguments to *this* method, etc.)
|
| 552 |
|
|
*/
|
| 553 |
|
|
status = acpi_ds_resolve_operands(walk_state);
|
| 554 |
|
|
if (ACPI_FAILURE(status)) {
|
| 555 |
|
|
|
| 556 |
|
|
/* On error, clear all resolved operands */
|
| 557 |
|
|
|
| 558 |
|
|
acpi_ds_clear_operands(walk_state);
|
| 559 |
|
|
break;
|
| 560 |
|
|
}
|
| 561 |
|
|
|
| 562 |
|
|
/*
|
| 563 |
|
|
* Tell the walk loop to preempt this running method and
|
| 564 |
|
|
* execute the new method
|
| 565 |
|
|
*/
|
| 566 |
|
|
status = AE_CTRL_TRANSFER;
|
| 567 |
|
|
|
| 568 |
|
|
/*
|
| 569 |
|
|
* Return now; we don't want to disturb anything,
|
| 570 |
|
|
* especially the operand count!
|
| 571 |
|
|
*/
|
| 572 |
|
|
return_ACPI_STATUS(status);
|
| 573 |
|
|
|
| 574 |
|
|
case AML_TYPE_CREATE_FIELD:
|
| 575 |
|
|
|
| 576 |
|
|
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
|
| 577 |
|
|
"Executing CreateField Buffer/Index Op=%p\n",
|
| 578 |
|
|
op));
|
| 579 |
|
|
|
| 580 |
|
|
status = acpi_ds_load2_end_op(walk_state);
|
| 581 |
|
|
if (ACPI_FAILURE(status)) {
|
| 582 |
|
|
break;
|
| 583 |
|
|
}
|
| 584 |
|
|
|
| 585 |
|
|
status =
|
| 586 |
|
|
acpi_ds_eval_buffer_field_operands(walk_state, op);
|
| 587 |
|
|
break;
|
| 588 |
|
|
|
| 589 |
|
|
case AML_TYPE_CREATE_OBJECT:
|
| 590 |
|
|
|
| 591 |
|
|
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
|
| 592 |
|
|
"Executing CreateObject (Buffer/Package) Op=%p\n",
|
| 593 |
|
|
op));
|
| 594 |
|
|
|
| 595 |
|
|
switch (op->common.parent->common.aml_opcode) {
|
| 596 |
|
|
case AML_NAME_OP:
|
| 597 |
|
|
|
| 598 |
|
|
/*
|
| 599 |
|
|
* Put the Node on the object stack (Contains the ACPI Name
|
| 600 |
|
|
* of this object)
|
| 601 |
|
|
*/
|
| 602 |
|
|
walk_state->operands[0] =
|
| 603 |
|
|
(void *)op->common.parent->common.node;
|
| 604 |
|
|
walk_state->num_operands = 1;
|
| 605 |
|
|
|
| 606 |
|
|
status = acpi_ds_create_node(walk_state,
|
| 607 |
|
|
op->common.parent->
|
| 608 |
|
|
common.node,
|
| 609 |
|
|
op->common.parent);
|
| 610 |
|
|
if (ACPI_FAILURE(status)) {
|
| 611 |
|
|
break;
|
| 612 |
|
|
}
|
| 613 |
|
|
|
| 614 |
|
|
/* Fall through */
|
| 615 |
|
|
/*lint -fallthrough */
|
| 616 |
|
|
|
| 617 |
|
|
case AML_INT_EVAL_SUBTREE_OP:
|
| 618 |
|
|
|
| 619 |
|
|
status =
|
| 620 |
|
|
acpi_ds_eval_data_object_operands
|
| 621 |
|
|
(walk_state, op,
|
| 622 |
|
|
acpi_ns_get_attached_object(op->common.
|
| 623 |
|
|
parent->common.
|
| 624 |
|
|
node));
|
| 625 |
|
|
break;
|
| 626 |
|
|
|
| 627 |
|
|
default:
|
| 628 |
|
|
|
| 629 |
|
|
status =
|
| 630 |
|
|
acpi_ds_eval_data_object_operands
|
| 631 |
|
|
(walk_state, op, NULL);
|
| 632 |
|
|
break;
|
| 633 |
|
|
}
|
| 634 |
|
|
|
| 635 |
|
|
/* Done with result state (Now that operand stack is built) */
|
| 636 |
|
|
|
| 637 |
|
|
status = acpi_ds_result_stack_pop(walk_state);
|
| 638 |
|
|
if (ACPI_FAILURE(status)) {
|
| 639 |
|
|
goto cleanup;
|
| 640 |
|
|
}
|
| 641 |
|
|
|
| 642 |
|
|
/*
|
| 643 |
|
|
* If a result object was returned from above, push it on the
|
| 644 |
|
|
* current result stack
|
| 645 |
|
|
*/
|
| 646 |
|
|
if (walk_state->result_obj) {
|
| 647 |
|
|
status =
|
| 648 |
|
|
acpi_ds_result_push(walk_state->result_obj,
|
| 649 |
|
|
walk_state);
|
| 650 |
|
|
}
|
| 651 |
|
|
break;
|
| 652 |
|
|
|
| 653 |
|
|
case AML_TYPE_NAMED_FIELD:
|
| 654 |
|
|
case AML_TYPE_NAMED_COMPLEX:
|
| 655 |
|
|
case AML_TYPE_NAMED_SIMPLE:
|
| 656 |
|
|
case AML_TYPE_NAMED_NO_OBJ:
|
| 657 |
|
|
|
| 658 |
|
|
status = acpi_ds_load2_end_op(walk_state);
|
| 659 |
|
|
if (ACPI_FAILURE(status)) {
|
| 660 |
|
|
break;
|
| 661 |
|
|
}
|
| 662 |
|
|
|
| 663 |
|
|
if (op->common.aml_opcode == AML_REGION_OP) {
|
| 664 |
|
|
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
|
| 665 |
|
|
"Executing OpRegion Address/Length Op=%p\n",
|
| 666 |
|
|
op));
|
| 667 |
|
|
|
| 668 |
|
|
status =
|
| 669 |
|
|
acpi_ds_eval_region_operands(walk_state,
|
| 670 |
|
|
op);
|
| 671 |
|
|
if (ACPI_FAILURE(status)) {
|
| 672 |
|
|
break;
|
| 673 |
|
|
}
|
| 674 |
|
|
|
| 675 |
|
|
status = acpi_ds_result_stack_pop(walk_state);
|
| 676 |
|
|
}
|
| 677 |
|
|
break;
|
| 678 |
|
|
|
| 679 |
|
|
case AML_TYPE_UNDEFINED:
|
| 680 |
|
|
|
| 681 |
|
|
ACPI_ERROR((AE_INFO,
|
| 682 |
|
|
"Undefined opcode type Op=%p", op));
|
| 683 |
|
|
return_ACPI_STATUS(AE_NOT_IMPLEMENTED);
|
| 684 |
|
|
|
| 685 |
|
|
case AML_TYPE_BOGUS:
|
| 686 |
|
|
|
| 687 |
|
|
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
|
| 688 |
|
|
"Internal opcode=%X type Op=%p\n",
|
| 689 |
|
|
walk_state->opcode, op));
|
| 690 |
|
|
break;
|
| 691 |
|
|
|
| 692 |
|
|
default:
|
| 693 |
|
|
|
| 694 |
|
|
ACPI_ERROR((AE_INFO,
|
| 695 |
|
|
"Unimplemented opcode, class=%X type=%X Opcode=%X Op=%p",
|
| 696 |
|
|
op_class, op_type, op->common.aml_opcode,
|
| 697 |
|
|
op));
|
| 698 |
|
|
|
| 699 |
|
|
status = AE_NOT_IMPLEMENTED;
|
| 700 |
|
|
break;
|
| 701 |
|
|
}
|
| 702 |
|
|
}
|
| 703 |
|
|
|
| 704 |
|
|
/*
|
| 705 |
|
|
* ACPI 2.0 support for 64-bit integers: Truncate numeric
|
| 706 |
|
|
* result value if we are executing from a 32-bit ACPI table
|
| 707 |
|
|
*/
|
| 708 |
|
|
acpi_ex_truncate_for32bit_table(walk_state->result_obj);
|
| 709 |
|
|
|
| 710 |
|
|
/*
|
| 711 |
|
|
* Check if we just completed the evaluation of a
|
| 712 |
|
|
* conditional predicate
|
| 713 |
|
|
*/
|
| 714 |
|
|
if ((ACPI_SUCCESS(status)) &&
|
| 715 |
|
|
(walk_state->control_state) &&
|
| 716 |
|
|
(walk_state->control_state->common.state ==
|
| 717 |
|
|
ACPI_CONTROL_PREDICATE_EXECUTING) &&
|
| 718 |
|
|
(walk_state->control_state->control.predicate_op == op)) {
|
| 719 |
|
|
status =
|
| 720 |
|
|
acpi_ds_get_predicate_value(walk_state,
|
| 721 |
|
|
walk_state->result_obj);
|
| 722 |
|
|
walk_state->result_obj = NULL;
|
| 723 |
|
|
}
|
| 724 |
|
|
|
| 725 |
|
|
cleanup:
|
| 726 |
|
|
|
| 727 |
|
|
if (walk_state->result_obj) {
|
| 728 |
|
|
|
| 729 |
|
|
/* Break to debugger to display result */
|
| 730 |
|
|
|
| 731 |
|
|
ACPI_DEBUGGER_EXEC(acpi_db_display_result_object
|
| 732 |
|
|
(walk_state->result_obj, walk_state));
|
| 733 |
|
|
|
| 734 |
|
|
/*
|
| 735 |
|
|
* Delete the result op if and only if:
|
| 736 |
|
|
* Parent will not use the result -- such as any
|
| 737 |
|
|
* non-nested type2 op in a method (parent will be method)
|
| 738 |
|
|
*/
|
| 739 |
|
|
acpi_ds_delete_result_if_not_used(op, walk_state->result_obj,
|
| 740 |
|
|
walk_state);
|
| 741 |
|
|
}
|
| 742 |
|
|
#ifdef _UNDER_DEVELOPMENT
|
| 743 |
|
|
|
| 744 |
|
|
if (walk_state->parser_state.aml == walk_state->parser_state.aml_end) {
|
| 745 |
|
|
acpi_db_method_end(walk_state);
|
| 746 |
|
|
}
|
| 747 |
|
|
#endif
|
| 748 |
|
|
|
| 749 |
|
|
/* Invoke exception handler on error */
|
| 750 |
|
|
|
| 751 |
|
|
if (ACPI_FAILURE(status)) {
|
| 752 |
|
|
status = acpi_ds_method_error(status, walk_state);
|
| 753 |
|
|
}
|
| 754 |
|
|
|
| 755 |
|
|
/* Always clear the object stack */
|
| 756 |
|
|
|
| 757 |
|
|
walk_state->num_operands = 0;
|
| 758 |
|
|
return_ACPI_STATUS(status);
|
| 759 |
|
|
}
|
