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Diffstat (limited to 'drivers/acpi/executer/exstore.c')
| -rw-r--r-- | drivers/acpi/executer/exstore.c | 536 |
1 files changed, 0 insertions, 536 deletions
diff --git a/drivers/acpi/executer/exstore.c b/drivers/acpi/executer/exstore.c deleted file mode 100644 index e0fc6aba125..00000000000 --- a/drivers/acpi/executer/exstore.c +++ /dev/null @@ -1,536 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exstore - AML Interpreter object store support - * - *****************************************************************************/ - -/* - * 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/acdispat.h> -#include <acpi/acinterp.h> -#include <acpi/amlcode.h> -#include <acpi/acnamesp.h> - - -#define _COMPONENT ACPI_EXECUTER - ACPI_MODULE_NAME ("exstore") - - -/******************************************************************************* - * - * FUNCTION: acpi_ex_store - * - * PARAMETERS: *source_desc - Value to be stored - * *dest_desc - Where to store it. Must be an NS node - * or an union acpi_operand_object of type - * Reference; - * walk_state - Current walk state - * - * RETURN: Status - * - * DESCRIPTION: Store the value described by source_desc into the location - * described by dest_desc. Called by various interpreter - * functions to store the result of an operation into - * the destination operand -- not just simply the actual "Store" - * ASL operator. - * - ******************************************************************************/ - -acpi_status -acpi_ex_store ( - union acpi_operand_object *source_desc, - union acpi_operand_object *dest_desc, - struct acpi_walk_state *walk_state) -{ - acpi_status status = AE_OK; - union acpi_operand_object *ref_desc = dest_desc; - - - ACPI_FUNCTION_TRACE_PTR ("ex_store", dest_desc); - - - /* Validate parameters */ - - if (!source_desc || !dest_desc) { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Null parameter\n")); - return_ACPI_STATUS (AE_AML_NO_OPERAND); - } - - /* dest_desc can be either a namespace node or an ACPI object */ - - if (ACPI_GET_DESCRIPTOR_TYPE (dest_desc) == ACPI_DESC_TYPE_NAMED) { - /* - * Dest is a namespace node, - * Storing an object into a Named node. - */ - status = acpi_ex_store_object_to_node (source_desc, - (struct acpi_namespace_node *) dest_desc, walk_state, - ACPI_IMPLICIT_CONVERSION); - - return_ACPI_STATUS (status); - } - - /* Destination object must be a Reference or a Constant object */ - - switch (ACPI_GET_OBJECT_TYPE (dest_desc)) { - case ACPI_TYPE_LOCAL_REFERENCE: - break; - - case ACPI_TYPE_INTEGER: - - /* Allow stores to Constants -- a Noop as per ACPI spec */ - - if (dest_desc->common.flags & AOPOBJ_AML_CONSTANT) { - return_ACPI_STATUS (AE_OK); - } - - /*lint -fallthrough */ - - default: - - /* Destination is not a Reference object */ - - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Target is not a Reference or Constant object - %s [%p]\n", - acpi_ut_get_object_type_name (dest_desc), dest_desc)); - - ACPI_DUMP_STACK_ENTRY (source_desc); - ACPI_DUMP_STACK_ENTRY (dest_desc); - ACPI_DUMP_OPERANDS (&dest_desc, ACPI_IMODE_EXECUTE, "ex_store", - 2, "Target is not a Reference or Constant object"); - - return_ACPI_STATUS (AE_AML_OPERAND_TYPE); - } - - /* - * Examine the Reference opcode. These cases are handled: - * - * 1) Store to Name (Change the object associated with a name) - * 2) Store to an indexed area of a Buffer or Package - * 3) Store to a Method Local or Arg - * 4) Store to the debug object - */ - switch (ref_desc->reference.opcode) { - case AML_NAME_OP: - case AML_REF_OF_OP: - - /* Storing an object into a Name "container" */ - - status = acpi_ex_store_object_to_node (source_desc, ref_desc->reference.object, - walk_state, ACPI_IMPLICIT_CONVERSION); - break; - - - case AML_INDEX_OP: - - /* Storing to an Index (pointer into a packager or buffer) */ - - status = acpi_ex_store_object_to_index (source_desc, ref_desc, walk_state); - break; - - - case AML_LOCAL_OP: - case AML_ARG_OP: - - /* Store to a method local/arg */ - - status = acpi_ds_store_object_to_local (ref_desc->reference.opcode, - ref_desc->reference.offset, source_desc, walk_state); - break; - - - case AML_DEBUG_OP: - - /* - * Storing to the Debug object causes the value stored to be - * displayed and otherwise has no effect -- see ACPI Specification - */ - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, - "**** Write to Debug Object: Object %p %s ****:\n\n", - source_desc, acpi_ut_get_object_type_name (source_desc))); - - ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "[ACPI Debug] %s: ", - acpi_ut_get_object_type_name (source_desc))); - - if (!acpi_ut_valid_internal_object (source_desc)) { - ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, - "%p, Invalid Internal Object!\n", source_desc)); - break; - } - - switch (ACPI_GET_OBJECT_TYPE (source_desc)) { - case ACPI_TYPE_INTEGER: - - if (acpi_gbl_integer_byte_width == 4) { - ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "0x%8.8X\n", - (u32) source_desc->integer.value)); - } - else { - ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "0x%8.8X%8.8X\n", - ACPI_FORMAT_UINT64 (source_desc->integer.value))); - } - break; - - - case ACPI_TYPE_BUFFER: - - ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "[0x%.2X]", - (u32) source_desc->buffer.length)); - ACPI_DUMP_BUFFER (source_desc->buffer.pointer, - (source_desc->buffer.length < 32) ? source_desc->buffer.length : 32); - break; - - - case ACPI_TYPE_STRING: - - ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "[0x%.2X] \"%s\"\n", - source_desc->string.length, source_desc->string.pointer)); - break; - - - case ACPI_TYPE_PACKAGE: - - ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "[0x%.2X] Elements Ptr - %p\n", - source_desc->package.count, source_desc->package.elements)); - break; - - - default: - - ACPI_DEBUG_PRINT_RAW ((ACPI_DB_DEBUG_OBJECT, "%p\n", - source_desc)); - break; - } - - ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EXEC, "\n")); - break; - - - default: - - ACPI_REPORT_ERROR (("ex_store: Unknown Reference opcode %X\n", - ref_desc->reference.opcode)); - ACPI_DUMP_ENTRY (ref_desc, ACPI_LV_ERROR); - - status = AE_AML_INTERNAL; - break; - } - - return_ACPI_STATUS (status); -} - - -/******************************************************************************* - * - * FUNCTION: acpi_ex_store_object_to_index - * - * PARAMETERS: *source_desc - Value to be stored - * *dest_desc - Named object to receive the value - * walk_state - Current walk state - * - * RETURN: Status - * - * DESCRIPTION: Store the object to indexed Buffer or Package element - * - ******************************************************************************/ - -acpi_status -acpi_ex_store_object_to_index ( - union acpi_operand_object *source_desc, - union acpi_operand_object *index_desc, - struct acpi_walk_state *walk_state) -{ - acpi_status status = AE_OK; - union acpi_operand_object *obj_desc; - union acpi_operand_object *new_desc; - u8 value = 0; - u32 i; - - - ACPI_FUNCTION_TRACE ("ex_store_object_to_index"); - - - /* - * Destination must be a reference pointer, and - * must point to either a buffer or a package - */ - switch (index_desc->reference.target_type) { - case ACPI_TYPE_PACKAGE: - /* - * Storing to a package element. Copy the object and replace - * any existing object with the new object. No implicit - * conversion is performed. - * - * The object at *(index_desc->Reference.Where) is the - * element within the package that is to be modified. - * The parent package object is at index_desc->Reference.Object - */ - obj_desc = *(index_desc->reference.where); - - status = acpi_ut_copy_iobject_to_iobject (source_desc, &new_desc, walk_state); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); - } - - if (obj_desc) { - /* Decrement reference count by the ref count of the parent package */ - - for (i = 0; i < ((union acpi_operand_object *) index_desc->reference.object)->common.reference_count; i++) { - acpi_ut_remove_reference (obj_desc); - } - } - - *(index_desc->reference.where) = new_desc; - - /* Increment reference count by the ref count of the parent package -1 */ - - for (i = 1; i < ((union acpi_operand_object *) index_desc->reference.object)->common.reference_count; i++) { - acpi_ut_add_reference (new_desc); - } - - break; - - - case ACPI_TYPE_BUFFER_FIELD: - - /* - * Store into a Buffer or String (not actually a real buffer_field) - * at a location defined by an Index. - * - * The first 8-bit element of the source object is written to the - * 8-bit Buffer location defined by the Index destination object, - * according to the ACPI 2.0 specification. - */ - - /* - * Make sure the target is a Buffer or String. An error should - * not happen here, since the reference_object was constructed - * by the INDEX_OP code. - */ - obj_desc = index_desc->reference.object; - if ((ACPI_GET_OBJECT_TYPE (obj_desc) != ACPI_TYPE_BUFFER) && - (ACPI_GET_OBJECT_TYPE (obj_desc) != ACPI_TYPE_STRING)) { - return_ACPI_STATUS (AE_AML_OPERAND_TYPE); - } - - /* - * The assignment of the individual elements will be slightly - * different for each source type. - */ - switch (ACPI_GET_OBJECT_TYPE (source_desc)) { - case ACPI_TYPE_INTEGER: - - /* Use the least-significant byte of the integer */ - - value = (u8) (source_desc->integer.value); - break; - - case ACPI_TYPE_BUFFER: - case ACPI_TYPE_STRING: - - /* Note: Takes advantage of common string/buffer fields */ - - value = source_desc->buffer.pointer[0]; - break; - - default: - - /* All other types are invalid */ - - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Source must be Integer/Buffer/String type, not %s\n", - acpi_ut_get_object_type_name (source_desc))); - return_ACPI_STATUS (AE_AML_OPERAND_TYPE); - } - - /* Store the source value into the target buffer byte */ - - obj_desc->buffer.pointer[index_desc->reference.offset] = value; - break; - - - default: - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Target is not a Package or buffer_field\n")); - status = AE_AML_OPERAND_TYPE; - break; - } - - return_ACPI_STATUS (status); -} - - -/******************************************************************************* - * - * FUNCTION: acpi_ex_store_object_to_node - * - * PARAMETERS: source_desc - Value to be stored - * Node - Named object to receive the value - * walk_state - Current walk state - * implicit_conversion - Perform implicit conversion (yes/no) - * - * RETURN: Status - * - * DESCRIPTION: Store the object to the named object. - * - * The Assignment of an object to a named object is handled here - * The value passed in will replace the current value (if any) - * with the input value. - * - * When storing into an object the data is converted to the - * target object type then stored in the object. This means - * that the target object type (for an initialized target) will - * not be changed by a store operation. - * - * Assumes parameters are already validated. - * - ******************************************************************************/ - -acpi_status -acpi_ex_store_object_to_node ( - union acpi_operand_object *source_desc, - struct acpi_namespace_node *node, - struct acpi_walk_state *walk_state, - u8 implicit_conversion) -{ - acpi_status status = AE_OK; - union acpi_operand_object *target_desc; - union acpi_operand_object *new_desc; - acpi_object_type target_type; - - - ACPI_FUNCTION_TRACE_PTR ("ex_store_object_to_node", source_desc); - - - /* - * Get current type of the node, and object attached to Node - */ - target_type = acpi_ns_get_type (node); - target_desc = acpi_ns_get_attached_object (node); - - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Storing %p(%s) into node %p(%s)\n", - source_desc, acpi_ut_get_object_type_name (source_desc), - node, acpi_ut_get_type_name (target_type))); - - /* - * Resolve the source object to an actual value - * (If it is a reference object) - */ - status = acpi_ex_resolve_object (&source_desc, target_type, walk_state); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); - } - - /* If no implicit conversion, drop into the default case below */ - - if (!implicit_conversion) { - /* Force execution of default (no implicit conversion) */ - - target_type = ACPI_TYPE_ANY; - } - - /* - * Do the actual store operation - */ - switch (target_type) { - case ACPI_TYPE_BUFFER_FIELD: - case ACPI_TYPE_LOCAL_REGION_FIELD: - case ACPI_TYPE_LOCAL_BANK_FIELD: - case ACPI_TYPE_LOCAL_INDEX_FIELD: - - /* - * For fields, copy the source data to the target field. - */ - status = acpi_ex_write_data_to_field (source_desc, target_desc, &walk_state->result_obj); - break; - - - case ACPI_TYPE_INTEGER: - case ACPI_TYPE_STRING: - case ACPI_TYPE_BUFFER: - - /* - * These target types are all of type Integer/String/Buffer, and - * therefore support implicit conversion before the store. - * - * Copy and/or convert the source object to a new target object - */ - status = acpi_ex_store_object_to_object (source_desc, target_desc, &new_desc, walk_state); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); - } - - if (new_desc != target_desc) { - /* - * Store the new new_desc as the new value of the Name, and set - * the Name's type to that of the value being stored in it. - * source_desc reference count is incremented by attach_object. - * - * Note: This may change the type of the node if an explicit store - * has been performed such that the node/object type has been - * changed. - */ - status = acpi_ns_attach_object (node, new_desc, new_desc->common.type); - - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, - "Store %s into %s via Convert/Attach\n", - acpi_ut_get_object_type_name (source_desc), - acpi_ut_get_object_type_name (new_desc))); - } - break; - - - default: - - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, - "Storing %s (%p) directly into node (%p), no implicit conversion\n", - acpi_ut_get_object_type_name (source_desc), source_desc, node)); - - /* No conversions for all other types. Just attach the source object */ - - status = acpi_ns_attach_object (node, source_desc, ACPI_GET_OBJECT_TYPE (source_desc)); - break; - } - - return_ACPI_STATUS (status); -} - - |