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https://github.com/torvalds/linux
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234 lines
7.8 KiB
C
234 lines
7.8 KiB
C
/******************************************************************************
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*
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* Name: acstruct.h - Internal structs
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2008, Intel Corp.
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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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#ifndef __ACSTRUCT_H__
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#define __ACSTRUCT_H__
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/* acpisrc:struct_defs -- for acpisrc conversion */
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/*****************************************************************************
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*
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* Tree walking typedefs and structs
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*
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****************************************************************************/
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/*
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* Walk state - current state of a parse tree walk. Used for both a leisurely
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* stroll through the tree (for whatever reason), and for control method
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* execution.
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*/
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#define ACPI_NEXT_OP_DOWNWARD 1
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#define ACPI_NEXT_OP_UPWARD 2
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/*
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* Groups of definitions for walk_type used for different implementations of
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* walkers (never simultaneously) - flags for interpreter:
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*/
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#define ACPI_WALK_NON_METHOD 0
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#define ACPI_WALK_METHOD 0x01
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#define ACPI_WALK_METHOD_RESTART 0x02
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/* Flags for i_aSL compiler only */
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#define ACPI_WALK_CONST_REQUIRED 0x10
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#define ACPI_WALK_CONST_OPTIONAL 0x20
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struct acpi_walk_state {
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struct acpi_walk_state *next; /* Next walk_state in list */
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u8 descriptor_type; /* To differentiate various internal objs */
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u8 walk_type;
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u16 opcode; /* Current AML opcode */
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u8 next_op_info; /* Info about next_op */
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u8 num_operands; /* Stack pointer for Operands[] array */
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u8 operand_index; /* Index into operand stack, to be used by acpi_ds_obj_stack_push */
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acpi_owner_id owner_id; /* Owner of objects created during the walk */
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u8 last_predicate; /* Result of last predicate */
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u8 current_result;
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u8 return_used;
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u8 scope_depth;
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u8 pass_number; /* Parse pass during table load */
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u8 result_size; /* Total elements for the result stack */
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u8 result_count; /* Current number of occupied elements of result stack */
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u32 aml_offset;
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u32 arg_types;
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u32 method_breakpoint; /* For single stepping */
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u32 user_breakpoint; /* User AML breakpoint */
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u32 parse_flags;
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struct acpi_parse_state parser_state; /* Current state of parser */
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u32 prev_arg_types;
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u32 arg_count; /* push for fixed or var args */
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struct acpi_namespace_node arguments[ACPI_METHOD_NUM_ARGS]; /* Control method arguments */
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struct acpi_namespace_node local_variables[ACPI_METHOD_NUM_LOCALS]; /* Control method locals */
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union acpi_operand_object *operands[ACPI_OBJ_NUM_OPERANDS + 1]; /* Operands passed to the interpreter (+1 for NULL terminator) */
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union acpi_operand_object **params;
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u8 *aml_last_while;
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union acpi_operand_object **caller_return_desc;
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union acpi_generic_state *control_state; /* List of control states (nested IFs) */
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struct acpi_namespace_node *deferred_node; /* Used when executing deferred opcodes */
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struct acpi_gpe_event_info *gpe_event_info; /* Info for GPE (_Lxx/_Exx methods only */
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union acpi_operand_object *implicit_return_obj;
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struct acpi_namespace_node *method_call_node; /* Called method Node */
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union acpi_parse_object *method_call_op; /* method_call Op if running a method */
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union acpi_operand_object *method_desc; /* Method descriptor if running a method */
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struct acpi_namespace_node *method_node; /* Method node if running a method. */
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union acpi_parse_object *op; /* Current parser op */
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const struct acpi_opcode_info *op_info; /* Info on current opcode */
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union acpi_parse_object *origin; /* Start of walk [Obsolete] */
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union acpi_operand_object *result_obj;
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union acpi_generic_state *results; /* Stack of accumulated results */
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union acpi_operand_object *return_desc; /* Return object, if any */
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union acpi_generic_state *scope_info; /* Stack of nested scopes */
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union acpi_parse_object *prev_op; /* Last op that was processed */
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union acpi_parse_object *next_op; /* next op to be processed */
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struct acpi_thread_state *thread;
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acpi_parse_downwards descending_callback;
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acpi_parse_upwards ascending_callback;
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};
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/* Info used by acpi_ps_init_objects */
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struct acpi_init_walk_info {
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u16 method_count;
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u16 device_count;
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u16 op_region_count;
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u16 field_count;
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u16 buffer_count;
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u16 package_count;
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u16 op_region_init;
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u16 field_init;
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u16 buffer_init;
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u16 package_init;
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u16 object_count;
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acpi_owner_id owner_id;
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acpi_native_uint table_index;
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};
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struct acpi_get_devices_info {
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acpi_walk_callback user_function;
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void *context;
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const char *hid;
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};
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union acpi_aml_operands {
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union acpi_operand_object *operands[7];
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struct {
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struct acpi_object_integer *type;
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struct acpi_object_integer *code;
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struct acpi_object_integer *argument;
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} fatal;
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struct {
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union acpi_operand_object *source;
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struct acpi_object_integer *index;
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union acpi_operand_object *target;
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} index;
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struct {
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union acpi_operand_object *source;
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struct acpi_object_integer *index;
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struct acpi_object_integer *length;
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union acpi_operand_object *target;
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} mid;
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};
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/*
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* Structure used to pass object evaluation parameters.
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* Purpose is to reduce CPU stack use.
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*/
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struct acpi_evaluate_info {
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struct acpi_namespace_node *prefix_node;
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char *pathname;
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union acpi_operand_object *obj_desc;
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union acpi_operand_object **parameters;
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struct acpi_namespace_node *resolved_node;
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union acpi_operand_object *return_object;
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u8 pass_number;
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u8 parameter_type;
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u8 return_object_type;
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u8 flags;
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};
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/* Types for parameter_type above */
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#define ACPI_PARAM_ARGS 0
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#define ACPI_PARAM_GPE 1
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/* Values for Flags above */
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#define ACPI_IGNORE_RETURN_VALUE 1
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/* Info used by acpi_ns_initialize_devices */
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struct acpi_device_walk_info {
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u16 device_count;
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u16 num_STA;
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u16 num_INI;
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struct acpi_table_desc *table_desc;
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struct acpi_evaluate_info *evaluate_info;
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};
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/* TBD: [Restructure] Merge with struct above */
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struct acpi_walk_info {
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u32 debug_level;
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u32 count;
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acpi_owner_id owner_id;
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u8 display_type;
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};
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/* Display Types */
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#define ACPI_DISPLAY_SUMMARY (u8) 0
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#define ACPI_DISPLAY_OBJECTS (u8) 1
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#define ACPI_DISPLAY_MASK (u8) 1
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#define ACPI_DISPLAY_SHORT (u8) 2
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#endif
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