diff options
Diffstat (limited to 'drivers/acpi/executer/exconfig.c')
| -rw-r--r-- | drivers/acpi/executer/exconfig.c | 501 |
1 files changed, 0 insertions, 501 deletions
diff --git a/drivers/acpi/executer/exconfig.c b/drivers/acpi/executer/exconfig.c deleted file mode 100644 index 1ce365d651d..00000000000 --- a/drivers/acpi/executer/exconfig.c +++ /dev/null @@ -1,501 +0,0 @@ -/****************************************************************************** - * - * Module Name: exconfig - Namespace reconfiguration (Load/Unload opcodes) - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2005, R. Byron Moore - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include <acpi/acpi.h> -#include <acpi/acinterp.h> -#include <acpi/amlcode.h> -#include <acpi/acnamesp.h> -#include <acpi/acevents.h> -#include <acpi/actables.h> -#include <acpi/acdispat.h> - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exconfig") - -/* Local prototypes */ -static acpi_status -acpi_ex_add_table(struct acpi_table_header *table, - struct acpi_namespace_node *parent_node, - union acpi_operand_object **ddb_handle); - -/******************************************************************************* - * - * FUNCTION: acpi_ex_add_table - * - * PARAMETERS: Table - Pointer to raw table - * parent_node - Where to load the table (scope) - * ddb_handle - Where to return the table handle. - * - * RETURN: Status - * - * DESCRIPTION: Common function to Install and Load an ACPI table with a - * returned table handle. - * - ******************************************************************************/ - -static acpi_status -acpi_ex_add_table(struct acpi_table_header *table, - struct acpi_namespace_node *parent_node, - union acpi_operand_object **ddb_handle) -{ - acpi_status status; - struct acpi_table_desc table_info; - union acpi_operand_object *obj_desc; - - ACPI_FUNCTION_TRACE("ex_add_table"); - - /* Create an object to be the table handle */ - - obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE); - if (!obj_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Init the table handle */ - - obj_desc->reference.opcode = AML_LOAD_OP; - *ddb_handle = obj_desc; - - /* Install the new table into the local data structures */ - - ACPI_MEMSET(&table_info, 0, sizeof(struct acpi_table_desc)); - - table_info.type = ACPI_TABLE_SSDT; - table_info.pointer = table; - table_info.length = (acpi_size) table->length; - table_info.allocation = ACPI_MEM_ALLOCATED; - - status = acpi_tb_install_table(&table_info); - obj_desc->reference.object = table_info.installed_desc; - - if (ACPI_FAILURE(status)) { - if (status == AE_ALREADY_EXISTS) { - /* Table already exists, just return the handle */ - - return_ACPI_STATUS(AE_OK); - } - goto cleanup; - } - - /* Add the table to the namespace */ - - status = acpi_ns_load_table(table_info.installed_desc, parent_node); - if (ACPI_FAILURE(status)) { - /* Uninstall table on error */ - - (void)acpi_tb_uninstall_table(table_info.installed_desc); - goto cleanup; - } - - return_ACPI_STATUS(AE_OK); - - cleanup: - acpi_ut_remove_reference(obj_desc); - *ddb_handle = NULL; - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_load_table_op - * - * PARAMETERS: walk_state - Current state with operands - * return_desc - Where to store the return object - * - * RETURN: Status - * - * DESCRIPTION: Load an ACPI table - * - ******************************************************************************/ - -acpi_status -acpi_ex_load_table_op(struct acpi_walk_state *walk_state, - union acpi_operand_object **return_desc) -{ - acpi_status status; - union acpi_operand_object **operand = &walk_state->operands[0]; - struct acpi_table_header *table; - struct acpi_namespace_node *parent_node; - struct acpi_namespace_node *start_node; - struct acpi_namespace_node *parameter_node = NULL; - union acpi_operand_object *ddb_handle; - - ACPI_FUNCTION_TRACE("ex_load_table_op"); - -#if 0 - /* - * Make sure that the signature does not match one of the tables that - * is already loaded. - */ - status = acpi_tb_match_signature(operand[0]->string.pointer, NULL); - if (status == AE_OK) { - /* Signature matched -- don't allow override */ - - return_ACPI_STATUS(AE_ALREADY_EXISTS); - } -#endif - - /* Find the ACPI table */ - - status = acpi_tb_find_table(operand[0]->string.pointer, - operand[1]->string.pointer, - operand[2]->string.pointer, &table); - if (ACPI_FAILURE(status)) { - if (status != AE_NOT_FOUND) { - return_ACPI_STATUS(status); - } - - /* Table not found, return an Integer=0 and AE_OK */ - - ddb_handle = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!ddb_handle) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - ddb_handle->integer.value = 0; - *return_desc = ddb_handle; - - return_ACPI_STATUS(AE_OK); - } - - /* Default nodes */ - - start_node = walk_state->scope_info->scope.node; - parent_node = acpi_gbl_root_node; - - /* root_path (optional parameter) */ - - if (operand[3]->string.length > 0) { - /* - * Find the node referenced by the root_path_string. This is the - * location within the namespace where the table will be loaded. - */ - status = - acpi_ns_get_node_by_path(operand[3]->string.pointer, - start_node, ACPI_NS_SEARCH_PARENT, - &parent_node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* parameter_path (optional parameter) */ - - if (operand[4]->string.length > 0) { - if ((operand[4]->string.pointer[0] != '\\') && - (operand[4]->string.pointer[0] != '^')) { - /* - * Path is not absolute, so it will be relative to the node - * referenced by the root_path_string (or the NS root if omitted) - */ - start_node = parent_node; - } - - /* Find the node referenced by the parameter_path_string */ - - status = - acpi_ns_get_node_by_path(operand[4]->string.pointer, - start_node, ACPI_NS_SEARCH_PARENT, - ¶meter_node); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* Load the table into the namespace */ - - status = acpi_ex_add_table(table, parent_node, &ddb_handle); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Parameter Data (optional) */ - - if (parameter_node) { - /* Store the parameter data into the optional parameter object */ - - status = acpi_ex_store(operand[5], - ACPI_CAST_PTR(union acpi_operand_object, - parameter_node), - walk_state); - if (ACPI_FAILURE(status)) { - (void)acpi_ex_unload_table(ddb_handle); - return_ACPI_STATUS(status); - } - } - - *return_desc = ddb_handle; - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_load_op - * - * PARAMETERS: obj_desc - Region or Field where the table will be - * obtained - * Target - Where a handle to the table will be stored - * walk_state - Current state - * - * RETURN: Status - * - * DESCRIPTION: Load an ACPI table from a field or operation region - * - ******************************************************************************/ - -acpi_status -acpi_ex_load_op(union acpi_operand_object *obj_desc, - union acpi_operand_object *target, - struct acpi_walk_state *walk_state) -{ - acpi_status status; - union acpi_operand_object *ddb_handle; - union acpi_operand_object *buffer_desc = NULL; - struct acpi_table_header *table_ptr = NULL; - acpi_physical_address address; - struct acpi_table_header table_header; - u32 i; - - ACPI_FUNCTION_TRACE("ex_load_op"); - - /* Object can be either an op_region or a Field */ - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_REGION: - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Load from Region %p %s\n", - obj_desc, - acpi_ut_get_object_type_name(obj_desc))); - - /* - * If the Region Address and Length have not been previously evaluated, - * evaluate them now and save the results. - */ - if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) { - status = acpi_ds_get_region_arguments(obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* Get the base physical address of the region */ - - address = obj_desc->region.address; - - /* Get the table length from the table header */ - - table_header.length = 0; - for (i = 0; i < 8; i++) { - status = - acpi_ev_address_space_dispatch(obj_desc, ACPI_READ, - (acpi_physical_address) - (i + address), 8, - ((u8 *) & - table_header) + i); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* Sanity check the table length */ - - if (table_header.length < sizeof(struct acpi_table_header)) { - return_ACPI_STATUS(AE_BAD_HEADER); - } - - /* Allocate a buffer for the entire table */ - - table_ptr = ACPI_MEM_ALLOCATE(table_header.length); - if (!table_ptr) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Get the entire table from the op region */ - - for (i = 0; i < table_header.length; i++) { - status = - acpi_ev_address_space_dispatch(obj_desc, ACPI_READ, - (acpi_physical_address) - (i + address), 8, - ((u8 *) table_ptr + - i)); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - } - break; - - case ACPI_TYPE_LOCAL_REGION_FIELD: - case ACPI_TYPE_LOCAL_BANK_FIELD: - case ACPI_TYPE_LOCAL_INDEX_FIELD: - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Load from Field %p %s\n", - obj_desc, - acpi_ut_get_object_type_name(obj_desc))); - - /* - * The length of the field must be at least as large as the table. - * Read the entire field and thus the entire table. Buffer is - * allocated during the read. - */ - status = - acpi_ex_read_data_from_field(walk_state, obj_desc, - &buffer_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - table_ptr = ACPI_CAST_PTR(struct acpi_table_header, - buffer_desc->buffer.pointer); - - /* All done with the buffer_desc, delete it */ - - buffer_desc->buffer.pointer = NULL; - acpi_ut_remove_reference(buffer_desc); - - /* Sanity check the table length */ - - if (table_ptr->length < sizeof(struct acpi_table_header)) { - status = AE_BAD_HEADER; - goto cleanup; - } - break; - - default: - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - /* The table must be either an SSDT or a PSDT */ - - if ((!ACPI_STRNCMP(table_ptr->signature, - acpi_gbl_table_data[ACPI_TABLE_PSDT].signature, - acpi_gbl_table_data[ACPI_TABLE_PSDT].sig_length)) && - (!ACPI_STRNCMP(table_ptr->signature, - acpi_gbl_table_data[ACPI_TABLE_SSDT].signature, - acpi_gbl_table_data[ACPI_TABLE_SSDT].sig_length))) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Table has invalid signature [%4.4s], must be SSDT or PSDT\n", - table_ptr->signature)); - status = AE_BAD_SIGNATURE; - goto cleanup; - } - - /* Install the new table into the local data structures */ - - status = acpi_ex_add_table(table_ptr, acpi_gbl_root_node, &ddb_handle); - if (ACPI_FAILURE(status)) { - /* On error, table_ptr was deallocated above */ - - return_ACPI_STATUS(status); - } - - /* Store the ddb_handle into the Target operand */ - - status = acpi_ex_store(ddb_handle, target, walk_state); - if (ACPI_FAILURE(status)) { - (void)acpi_ex_unload_table(ddb_handle); - - /* table_ptr was deallocated above */ - - return_ACPI_STATUS(status); - } - - cleanup: - if (ACPI_FAILURE(status)) { - ACPI_MEM_FREE(table_ptr); - } - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_unload_table - * - * PARAMETERS: ddb_handle - Handle to a previously loaded table - * - * RETURN: Status - * - * DESCRIPTION: Unload an ACPI table - * - ******************************************************************************/ - -acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle) -{ - acpi_status status = AE_OK; - union acpi_operand_object *table_desc = ddb_handle; - struct acpi_table_desc *table_info; - - ACPI_FUNCTION_TRACE("ex_unload_table"); - - /* - * Validate the handle - * Although the handle is partially validated in acpi_ex_reconfiguration(), - * when it calls acpi_ex_resolve_operands(), the handle is more completely - * validated here. - */ - if ((!ddb_handle) || - (ACPI_GET_DESCRIPTOR_TYPE(ddb_handle) != ACPI_DESC_TYPE_OPERAND) || - (ACPI_GET_OBJECT_TYPE(ddb_handle) != ACPI_TYPE_LOCAL_REFERENCE)) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Get the actual table descriptor from the ddb_handle */ - - table_info = (struct acpi_table_desc *)table_desc->reference.object; - - /* - * Delete the entire namespace under this table Node - * (Offset contains the table_id) - */ - acpi_ns_delete_namespace_by_owner(table_info->owner_id); - acpi_ut_release_owner_id(&table_info->owner_id); - - /* Delete the table itself */ - - (void)acpi_tb_uninstall_table(table_info->installed_desc); - - /* Delete the table descriptor (ddb_handle) */ - - acpi_ut_remove_reference(table_desc); - return_ACPI_STATUS(status); -} |