diff options
Diffstat (limited to 'drivers/acpi/dispatcher/dswload.c')
| -rw-r--r-- | drivers/acpi/dispatcher/dswload.c | 976 |
1 files changed, 976 insertions, 0 deletions
diff --git a/drivers/acpi/dispatcher/dswload.c b/drivers/acpi/dispatcher/dswload.c new file mode 100644 index 000000000000..06d758679588 --- /dev/null +++ b/drivers/acpi/dispatcher/dswload.c @@ -0,0 +1,976 @@ +/****************************************************************************** + * + * Module Name: dswload - Dispatcher namespace load callbacks + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2005, R. Byron Moore + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + + +#include <acpi/acpi.h> +#include <acpi/acparser.h> +#include <acpi/amlcode.h> +#include <acpi/acdispat.h> +#include <acpi/acinterp.h> +#include <acpi/acnamesp.h> +#include <acpi/acevents.h> + +#ifdef _ACPI_ASL_COMPILER +#include <acpi/acdisasm.h> +#endif + +#define _COMPONENT ACPI_DISPATCHER + ACPI_MODULE_NAME ("dswload") + + +/******************************************************************************* + * + * FUNCTION: acpi_ds_init_callbacks + * + * PARAMETERS: walk_state - Current state of the parse tree walk + * pass_number - 1, 2, or 3 + * + * RETURN: Status + * + * DESCRIPTION: Init walk state callbacks + * + ******************************************************************************/ + +acpi_status +acpi_ds_init_callbacks ( + struct acpi_walk_state *walk_state, + u32 pass_number) +{ + + switch (pass_number) { + case 1: + walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 | ACPI_PARSE_DELETE_TREE; + walk_state->descending_callback = acpi_ds_load1_begin_op; + walk_state->ascending_callback = acpi_ds_load1_end_op; + break; + + case 2: + walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 | ACPI_PARSE_DELETE_TREE; + walk_state->descending_callback = acpi_ds_load2_begin_op; + walk_state->ascending_callback = acpi_ds_load2_end_op; + break; + + case 3: +#ifndef ACPI_NO_METHOD_EXECUTION + walk_state->parse_flags |= ACPI_PARSE_EXECUTE | ACPI_PARSE_DELETE_TREE; + walk_state->descending_callback = acpi_ds_exec_begin_op; + walk_state->ascending_callback = acpi_ds_exec_end_op; +#endif + break; + + default: + return (AE_BAD_PARAMETER); + } + + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_ds_load1_begin_op + * + * PARAMETERS: walk_state - Current state of the parse tree walk + * Op - Op that has been just been reached in the + * walk; Arguments have not been evaluated yet. + * + * RETURN: Status + * + * DESCRIPTION: Descending callback used during the loading of ACPI tables. + * + ******************************************************************************/ + +acpi_status +acpi_ds_load1_begin_op ( + struct acpi_walk_state *walk_state, + union acpi_parse_object **out_op) +{ + union acpi_parse_object *op; + struct acpi_namespace_node *node; + acpi_status status; + acpi_object_type object_type; + char *path; + u32 flags; + + + ACPI_FUNCTION_NAME ("ds_load1_begin_op"); + + + op = walk_state->op; + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, walk_state)); + + /* We are only interested in opcodes that have an associated name */ + + if (op) { + if (!(walk_state->op_info->flags & AML_NAMED)) { +#if 0 + if ((walk_state->op_info->class == AML_CLASS_EXECUTE) || + (walk_state->op_info->class == AML_CLASS_CONTROL)) { + acpi_os_printf ("\n\n***EXECUTABLE OPCODE %s***\n\n", walk_state->op_info->name); + *out_op = op; + return (AE_CTRL_SKIP); + } +#endif + *out_op = op; + return (AE_OK); + } + + /* Check if this object has already been installed in the namespace */ + + if (op->common.node) { + *out_op = op; + return (AE_OK); + } + } + + path = acpi_ps_get_next_namestring (&walk_state->parser_state); + + /* Map the raw opcode into an internal object type */ + + object_type = walk_state->op_info->object_type; + + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "State=%p Op=%p [%s]\n", walk_state, op, acpi_ut_get_type_name (object_type))); + + switch (walk_state->opcode) { + case AML_SCOPE_OP: + + /* + * The target name of the Scope() operator must exist at this point so + * that we can actually open the scope to enter new names underneath it. + * Allow search-to-root for single namesegs. + */ + status = acpi_ns_lookup (walk_state->scope_info, path, object_type, + ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, walk_state, &(node)); +#ifdef _ACPI_ASL_COMPILER + if (status == AE_NOT_FOUND) { + /* + * Table disassembly: + * Target of Scope() not found. Generate an External for it, and + * insert the name into the namespace. + */ + acpi_dm_add_to_external_list (path); + status = acpi_ns_lookup (walk_state->scope_info, path, object_type, + ACPI_IMODE_LOAD_PASS1, ACPI_NS_SEARCH_PARENT, walk_state, &(node)); + } +#endif + if (ACPI_FAILURE (status)) { + ACPI_REPORT_NSERROR (path, status); + return (status); + } + + /* + * Check to make sure that the target is + * one of the opcodes that actually opens a scope + */ + switch (node->type) { + case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ + case ACPI_TYPE_DEVICE: + case ACPI_TYPE_POWER: + case ACPI_TYPE_PROCESSOR: + case ACPI_TYPE_THERMAL: + + /* These are acceptable types */ + break; + + case ACPI_TYPE_INTEGER: + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + + /* + * These types we will allow, but we will change the type. This + * enables some existing code of the form: + * + * Name (DEB, 0) + * Scope (DEB) { ... } + * + * Note: silently change the type here. On the second pass, we will report a warning + */ + + ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)\n", + path, acpi_ut_get_type_name (node->type))); + + node->type = ACPI_TYPE_ANY; + walk_state->scope_info->common.value = ACPI_TYPE_ANY; + break; + + default: + + /* All other types are an error */ + + ACPI_REPORT_ERROR (("Invalid type (%s) for target of Scope operator [%4.4s] (Cannot override)\n", + acpi_ut_get_type_name (node->type), path)); + + return (AE_AML_OPERAND_TYPE); + } + break; + + + default: + + /* + * For all other named opcodes, we will enter the name into the namespace. + * + * Setup the search flags. + * Since we are entering a name into the namespace, we do not want to + * enable the search-to-root upsearch. + * + * There are only two conditions where it is acceptable that the name + * already exists: + * 1) the Scope() operator can reopen a scoping object that was + * previously defined (Scope, Method, Device, etc.) + * 2) Whenever we are parsing a deferred opcode (op_region, Buffer, + * buffer_field, or Package), the name of the object is already + * in the namespace. + */ + if (walk_state->deferred_node) { + /* This name is already in the namespace, get the node */ + + node = walk_state->deferred_node; + status = AE_OK; + break; + } + + flags = ACPI_NS_NO_UPSEARCH; + if ((walk_state->opcode != AML_SCOPE_OP) && + (!(walk_state->parse_flags & ACPI_PARSE_DEFERRED_OP))) { + flags |= ACPI_NS_ERROR_IF_FOUND; + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[%s] Cannot already exist\n", + acpi_ut_get_type_name (object_type))); + } + else { + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[%s] Both Find or Create allowed\n", + acpi_ut_get_type_name (object_type))); + } + + /* + * Enter the named type into the internal namespace. We enter the name + * as we go downward in the parse tree. Any necessary subobjects that involve + * arguments to the opcode must be created as we go back up the parse tree later. + */ + status = acpi_ns_lookup (walk_state->scope_info, path, object_type, + ACPI_IMODE_LOAD_PASS1, flags, walk_state, &(node)); + if (ACPI_FAILURE (status)) { + ACPI_REPORT_NSERROR (path, status); + return (status); + } + break; + } + + + /* Common exit */ + + if (!op) { + /* Create a new op */ + + op = acpi_ps_alloc_op (walk_state->opcode); + if (!op) { + return (AE_NO_MEMORY); + } + } + + /* Initialize */ + + op->named.name = node->name.integer; + +#if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)) + op->named.path = (u8 *) path; +#endif + + + /* + * Put the Node in the "op" object that the parser uses, so we + * can get it again quickly when this scope is closed + */ + op->common.node = node; + acpi_ps_append_arg (acpi_ps_get_parent_scope (&walk_state->parser_state), op); + + *out_op = op; + return (status); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_ds_load1_end_op + * + * PARAMETERS: walk_state - Current state of the parse tree walk + * Op - Op that has been just been completed in the + * walk; Arguments have now been evaluated. + * + * RETURN: Status + * + * DESCRIPTION: Ascending callback used during the loading of the namespace, + * both control methods and everything else. + * + ******************************************************************************/ + +acpi_status +acpi_ds_load1_end_op ( + struct acpi_walk_state *walk_state) +{ + union acpi_parse_object *op; + acpi_object_type object_type; + acpi_status status = AE_OK; + + + ACPI_FUNCTION_NAME ("ds_load1_end_op"); + + + op = walk_state->op; + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, walk_state)); + + /* We are only interested in opcodes that have an associated name */ + + if (!(walk_state->op_info->flags & (AML_NAMED | AML_FIELD))) { + return (AE_OK); + } + + /* Get the object type to determine if we should pop the scope */ + + object_type = walk_state->op_info->object_type; + +#ifndef ACPI_NO_METHOD_EXECUTION + if (walk_state->op_info->flags & AML_FIELD) { + if (walk_state->opcode == AML_FIELD_OP || + walk_state->opcode == AML_BANK_FIELD_OP || + walk_state->opcode == AML_INDEX_FIELD_OP) { + status = acpi_ds_init_field_objects (op, walk_state); + } + return (status); + } + + + if (op->common.aml_opcode == AML_REGION_OP) { + status = acpi_ex_create_region (op->named.data, op->named.length, + (acpi_adr_space_type) ((op->common.value.arg)->common.value.integer), walk_state); + if (ACPI_FAILURE (status)) { + return (status); + } + } +#endif + + if (op->common.aml_opcode == AML_NAME_OP) { + /* For Name opcode, get the object type from the argument */ + + if (op->common.value.arg) { + object_type = (acpi_ps_get_opcode_info ((op->common.value.arg)->common.aml_opcode))->object_type; + op->common.node->type = (u8) object_type; + } + } + + if (op->common.aml_opcode == AML_METHOD_OP) { + /* + * method_op pkg_length name_string method_flags term_list + * + * Note: We must create the method node/object pair as soon as we + * see the method declaration. This allows later pass1 parsing + * of invocations of the method (need to know the number of + * arguments.) + */ + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "LOADING-Method: State=%p Op=%p named_obj=%p\n", + walk_state, op, op->named.node)); + + if (!acpi_ns_get_attached_object (op->named.node)) { + walk_state->operands[0] = (void *) op->named.node; + walk_state->num_operands = 1; + + status = acpi_ds_create_operands (walk_state, op->common.value.arg); + if (ACPI_SUCCESS (status)) { + status = acpi_ex_create_method (op->named.data, + op->named.length, walk_state); + } + walk_state->operands[0] = NULL; + walk_state->num_operands = 0; + + if (ACPI_FAILURE (status)) { + return (status); + } + } + } + + /* Pop the scope stack */ + + if (acpi_ns_opens_scope (object_type)) { + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s): Popping scope for Op %p\n", + acpi_ut_get_type_name (object_type), op)); + + status = acpi_ds_scope_stack_pop (walk_state); + } + + return (status); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_ds_load2_begin_op + * + * PARAMETERS: walk_state - Current state of the parse tree walk + * Op - Op that has been just been reached in the + * walk; Arguments have not been evaluated yet. + * + * RETURN: Status + * + * DESCRIPTION: Descending callback used during the loading of ACPI tables. + * + ******************************************************************************/ + +acpi_status +acpi_ds_load2_begin_op ( + struct acpi_walk_state *walk_state, + union acpi_parse_object **out_op) +{ + union acpi_parse_object *op; + struct acpi_namespace_node *node; + acpi_status status; + acpi_object_type object_type; + char *buffer_ptr; + + + ACPI_FUNCTION_TRACE ("ds_load2_begin_op"); + + + op = walk_state->op; + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, walk_state)); + + if (op) { + /* We only care about Namespace opcodes here */ + + if ((!(walk_state->op_info->flags & AML_NSOPCODE) && (walk_state->opcode != AML_INT_NAMEPATH_OP)) || + (!(walk_state->op_info->flags & AML_NAMED))) { + return_ACPI_STATUS (AE_OK); + } + + /* + * Get the name we are going to enter or lookup in the namespace + */ + if (walk_state->opcode == AML_INT_NAMEPATH_OP) { + /* For Namepath op, get the path string */ + + buffer_ptr = op->common.value.string; + if (!buffer_ptr) { + /* No name, just exit */ + + return_ACPI_STATUS (AE_OK); + } + } + else { + /* Get name from the op */ + + buffer_ptr = (char *) &op->named.name; + } + } + else { + /* Get the namestring from the raw AML */ + + buffer_ptr = acpi_ps_get_next_namestring (&walk_state->parser_state); + } + + /* Map the opcode into an internal object type */ + + object_type = walk_state->op_info->object_type; + + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "State=%p Op=%p Type=%X\n", walk_state, op, object_type)); + + + switch (walk_state->opcode) { + case AML_FIELD_OP: + case AML_BANK_FIELD_OP: + case AML_INDEX_FIELD_OP: + + node = NULL; + status = AE_OK; + break; + + case AML_INT_NAMEPATH_OP: + + /* + * The name_path is an object reference to an existing object. Don't enter the + * name into the namespace, but look it up for use later + */ + status = acpi_ns_lookup (walk_state->scope_info, buffer_ptr, object_type, + ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, walk_state, &(node)); + break; + + case AML_SCOPE_OP: + + /* + * The Path is an object reference to an existing object. Don't enter the + * name into the namespace, but look it up for use later + */ + status = acpi_ns_lookup (walk_state->scope_info, buffer_ptr, object_type, + ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, walk_state, &(node)); + if (ACPI_FAILURE (status)) { +#ifdef _ACPI_ASL_COMPILER + if (status == AE_NOT_FOUND) { + status = AE_OK; + } + else { + ACPI_REPORT_NSERROR (buffer_ptr, status); + } +#else + ACPI_REPORT_NSERROR (buffer_ptr, status); +#endif + return_ACPI_STATUS (status); + } + /* + * We must check to make sure that the target is + * one of the opcodes that actually opens a scope + */ + switch (node->type) { + case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ + case ACPI_TYPE_DEVICE: + case ACPI_TYPE_POWER: + case ACPI_TYPE_PROCESSOR: + case ACPI_TYPE_THERMAL: + + /* These are acceptable types */ + break; + + case ACPI_TYPE_INTEGER: + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: + + /* + * These types we will allow, but we will change the type. This + * enables some existing code of the form: + * + * Name (DEB, 0) + * Scope (DEB) { ... } + */ + + ACPI_REPORT_WARNING (("Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)\n", + buffer_ptr, acpi_ut_get_type_name (node->type))); + + node->type = ACPI_TYPE_ANY; + walk_state->scope_info->common.value = ACPI_TYPE_ANY; + break; + + default: + + /* All other types are an error */ + + ACPI_REPORT_ERROR (("Invalid type (%s) for target of Scope operator [%4.4s]\n", + acpi_ut_get_type_name (node->type), buffer_ptr)); + + return (AE_AML_OPERAND_TYPE); + } + break; + + default: + + /* All other opcodes */ + + if (op && op->common.node) { + /* This op/node was previously entered into the namespace */ + + node = op->common.node; + + if (acpi_ns_opens_scope (object_type)) { + status = acpi_ds_scope_stack_push (node, object_type, walk_state); + if (ACPI_FAILURE (status)) { + return_ACPI_STATUS (status); + } + + } + return_ACPI_STATUS (AE_OK); + } + + /* + * Enter the named type into the internal namespace. We enter the name + * as we go downward in the parse tree. Any necessary subobjects that involve + * arguments to the opcode must be created as we go back up the parse tree later. + * + * Note: Name may already exist if we are executing a deferred opcode. + */ + if (walk_state->deferred_node) { + /* This name is already in the namespace, get the node */ + + node = walk_state->deferred_node; + status = AE_OK; + break; + } + + status = acpi_ns_lookup (walk_state->scope_info, buffer_ptr, object_type, + ACPI_IMODE_EXECUTE, ACPI_NS_NO_UPSEARCH, walk_state, &(node)); + break; + } + + if (ACPI_FAILURE (status)) { + ACPI_REPORT_NSERROR (buffer_ptr, status); + return_ACPI_STATUS (status); + } + + + if (!op) { + /* Create a new op */ + + op = acpi_ps_alloc_op (walk_state->opcode); + if (!op) { + return_ACPI_STATUS (AE_NO_MEMORY); + } + + /* Initialize the new op */ + + if (node) { + op->named.name = node->name.integer; + } + if (out_op) { + *out_op = op; + } + } + + /* + * Put the Node in the "op" object that the parser uses, so we + * can get it again quickly when this scope is closed + */ + op->common.node = node; + + return_ACPI_STATUS (status); +} + + +/******************************************************************************* + * + * FUNCTION: acpi_ds_load2_end_op + * + * PARAMETERS: walk_state - Current state of the parse tree walk + * Op - Op that has been just been completed in the + * walk; Arguments have now been evaluated. + * + * RETURN: Status + * + * DESCRIPTION: Ascending callback used during the loading of the namespace, + * both control methods and everything else. + * + ******************************************************************************/ + +acpi_status +acpi_ds_load2_end_op ( + struct acpi_walk_state *walk_state) +{ + union acpi_parse_object *op; + acpi_status status = AE_OK; + acpi_object_type object_type; + struct acpi_namespace_node *node; + union acpi_parse_object *arg; + struct acpi_namespace_node *new_node; +#ifndef ACPI_NO_METHOD_EXECUTION + u32 i; +#endif + + + ACPI_FUNCTION_TRACE ("ds_load2_end_op"); + + op = walk_state->op; + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n", + walk_state->op_info->name, op, walk_state)); + + /* Only interested in opcodes that have namespace objects */ + + if (!(walk_state->op_info->flags & AML_NSOBJECT)) { + return_ACPI_STATUS (AE_OK); + } + + if (op->common.aml_opcode == AML_SCOPE_OP) { + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "Ending scope Op=%p State=%p\n", op, walk_state)); + } + + + object_type = walk_state->op_info->object_type; + + /* + * Get the Node/name from the earlier lookup + * (It was saved in the *op structure) + */ + node = op->common.node; + + /* + * Put the Node on the object stack (Contains the ACPI Name of + * this object) + */ + walk_state->operands[0] = (void *) node; + walk_state->num_operands = 1; + + /* Pop the scope stack */ + + if (acpi_ns_opens_scope (object_type) && (op->common.aml_opcode != AML_INT_METHODCALL_OP)) { + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s) Popping scope for Op %p\n", + acpi_ut_get_type_name (object_type), op)); + + status = acpi_ds_scope_stack_pop (walk_state); + if (ACPI_FAILURE (status)) { + goto cleanup; + } + } + + /* + * Named operations are as follows: + * + * AML_ALIAS + * AML_BANKFIELD + * AML_CREATEBITFIELD + * AML_CREATEBYTEFIELD + * AML_CREATEDWORDFIELD + * AML_CREATEFIELD + * AML_CREATEQWORDFIELD + * AML_CREATEWORDFIELD + * AML_DATA_REGION + * AML_DEVICE + * AML_EVENT + * AML_FIELD + * AML_INDEXFIELD + * AML_METHOD + * AML_METHODCALL + * AML_MUTEX + * AML_NAME + * AML_NAMEDFIELD + * AML_OPREGION + * AML_POWERRES + * AML_PROCESSOR + * AML_SCOPE + * AML_THERMALZONE + */ + + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "Create-Load [%s] State=%p Op=%p named_obj=%p\n", + acpi_ps_get_opcode_name (op->common.aml_opcode), walk_state, op, node)); + + /* Decode the opcode */ + + arg = op->common.value.arg; + + switch (walk_state->op_info->type) { +#ifndef ACPI_NO_METHOD_EXECUTION + + case AML_TYPE_CREATE_FIELD: + + /* + * Create the field object, but the field buffer and index must + * be evaluated later during the execution phase + */ + status = acpi_ds_create_buffer_field (op, walk_state); + break; + + + case AML_TYPE_NAMED_FIELD: + + switch (op->common.aml_opcode) { + case AML_INDEX_FIELD_OP: + + status = acpi_ds_create_index_field (op, (acpi_handle) arg->common.node, + walk_state); + break; + + case AML_BANK_FIELD_OP: + + status = acpi_ds_create_bank_field (op, arg->common.node, walk_state); + break; + + case AML_FIELD_OP: + + status = acpi_ds_create_field (op, arg->common.node, walk_state); + break; + + default: + /* All NAMED_FIELD opcodes must be handled above */ + break; + } + break; + + + case AML_TYPE_NAMED_SIMPLE: + + status = acpi_ds_create_operands (walk_state, arg); + if (ACPI_FAILURE (status)) { + goto cleanup; + } + + switch (op->common.aml_opcode) { + case AML_PROCESSOR_OP: + + status = acpi_ex_create_processor (walk_state); + break; + + case AML_POWER_RES_OP: + + status = acpi_ex_create_power_resource (walk_state); + break; + + case AML_MUTEX_OP: + + status = acpi_ex_create_mutex (walk_state); + break; + + case AML_EVENT_OP: + + status = acpi_ex_create_event (walk_state); + break; + + case AML_DATA_REGION_OP: + + status = acpi_ex_create_table_region (walk_state); + break; + + case AML_ALIAS_OP: + + status = acpi_ex_create_alias (walk_state); + break; + + default: + /* Unknown opcode */ + + status = AE_OK; + goto cleanup; + } + + /* Delete operands */ + + for (i = 1; i < walk_state->num_operands; i++) { + acpi_ut_remove_reference (walk_state->operands[i]); + walk_state->operands[i] = NULL; + } + + break; +#endif /* ACPI_NO_METHOD_EXECUTION */ + + case AML_TYPE_NAMED_COMPLEX: + + switch (op->common.aml_opcode) { +#ifndef ACPI_NO_METHOD_EXECUTION + case AML_REGION_OP: + /* + * The op_region is not fully parsed at this time. Only valid argument is the space_id. + * (We must save the address of the AML of the address and length operands) + */ + /* + * If we have a valid region, initialize it + * Namespace is NOT locked at this point. + */ + status = acpi_ev_initialize_region (acpi_ns_get_attached_object (node), FALSE); + if (ACPI_FAILURE (status)) { + /* + * If AE_NOT_EXIST is returned, it is not fatal + * because many regions get created before a handler + * is installed for said region. + */ + if (AE_NOT_EXIST == status) { + status = AE_OK; + } + } + break; + + + case AML_NAME_OP: + + status = acpi_ds_create_node (walk_state, node, op); + break; +#endif /* ACPI_NO_METHOD_EXECUTION */ + + + default: + /* All NAMED_COMPLEX opcodes must be handled above */ + /* Note: Method objects were already created in Pass 1 */ + break; + } + break; + + + case AML_CLASS_INTERNAL: + + /* case AML_INT_NAMEPATH_OP: */ + break; + + + case AML_CLASS_METHOD_CALL: + + ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, + "RESOLVING-method_call: State=%p Op=%p named_obj=%p\n", + walk_state, op, node)); + + /* + * Lookup the method name and save the Node + */ + status = acpi_ns_lookup (walk_state->scope_info, arg->common.value.string, + ACPI_TYPE_ANY, ACPI_IMODE_LOAD_PASS2, + ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, + walk_state, &(new_node)); + if (ACPI_SUCCESS (status)) { + /* + * Make sure that what we found is indeed a method + * We didn't search for a method on purpose, to see if the name would resolve + */ + if (new_node->type != ACPI_TYPE_METHOD) { + status = AE_AML_OPERAND_TYPE; + } + + /* We could put the returned object (Node) on the object stack for later, but + * for now, we will put it in the "op" object that the parser uses, so we + * can get it again at the end of this scope + */ + op->common.node = new_node; + } + else { + ACPI_REPORT_NSERROR (arg->common.value.string, status); + } + break; + + + default: + break; + } + +cleanup: + + /* Remove the Node pushed at the very beginning */ + + walk_state->operands[0] = NULL; + walk_state->num_operands = 0; + return_ACPI_STATUS (status); +} + + |