acinterp.h

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/******************************************************************************
 *
 * Name: acinterp.h - Interpreter subcomponent prototypes and defines
 *
 *****************************************************************************/

/*
 * Copyright (C) 2000 - 2007, 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.
 */

#ifndef __ACINTERP_H__
#define __ACINTERP_H__

#define ACPI_WALK_OPERANDS          (&(walk_state->operands [walk_state->num_operands -1]))

/* Macros for tables used for debug output */

#define ACPI_EXD_OFFSET(f)          (u8) ACPI_OFFSET (union acpi_operand_object,f)
#define ACPI_EXD_NSOFFSET(f)        (u8) ACPI_OFFSET (struct acpi_namespace_node,f)
#define ACPI_EXD_TABLE_SIZE(name)   (sizeof(name) / sizeof (struct acpi_exdump_info))

/*
 * If possible, pack the following structures to byte alignment, since we
 * don't care about performance for debug output. Two cases where we cannot
 * pack the structures:
 *
 * 1) Hardware does not support misaligned memory transfers
 * 2) Compiler does not support pointers within packed structures
 */
#if (!defined(ACPI_MISALIGNMENT_NOT_SUPPORTED) && !defined(ACPI_PACKED_POINTERS_NOT_SUPPORTED))
#pragma pack(1)
#endif

typedef const struct acpi_exdump_info {
	u8 opcode;
	u8 offset;
	char *name;

} acpi_exdump_info;

/* Values for the Opcode field above */

#define ACPI_EXD_INIT                   0
#define ACPI_EXD_TYPE                   1
#define ACPI_EXD_UINT8                  2
#define ACPI_EXD_UINT16                 3
#define ACPI_EXD_UINT32                 4
#define ACPI_EXD_UINT64                 5
#define ACPI_EXD_LITERAL                6
#define ACPI_EXD_POINTER                7
#define ACPI_EXD_ADDRESS                8
#define ACPI_EXD_STRING                 9
#define ACPI_EXD_BUFFER                 10
#define ACPI_EXD_PACKAGE                11
#define ACPI_EXD_FIELD                  12
#define ACPI_EXD_REFERENCE              13

/* restore default alignment */

#pragma pack()

/*
 * exconvrt - object conversion
 */
acpi_status
acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc,
			   union acpi_operand_object **result_desc, u32 flags);

acpi_status
acpi_ex_convert_to_buffer(union acpi_operand_object *obj_desc,
			  union acpi_operand_object **result_desc);

acpi_status
acpi_ex_convert_to_string(union acpi_operand_object *obj_desc,
			  union acpi_operand_object **result_desc, u32 type);

/* Types for ->String conversion */

#define ACPI_EXPLICIT_BYTE_COPY         0x00000000
#define ACPI_EXPLICIT_CONVERT_HEX       0x00000001
#define ACPI_IMPLICIT_CONVERT_HEX       0x00000002
#define ACPI_EXPLICIT_CONVERT_DECIMAL   0x00000003

acpi_status
acpi_ex_convert_to_target_type(acpi_object_type destination_type,
			       union acpi_operand_object *source_desc,
			       union acpi_operand_object **result_desc,
			       struct acpi_walk_state *walk_state);

/*
 * exfield - ACPI AML (p-code) execution - field manipulation
 */
acpi_status
acpi_ex_common_buffer_setup(union acpi_operand_object *obj_desc,
			    u32 buffer_length, u32 * datum_count);

acpi_status
acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc,
			       acpi_integer mask,
			       acpi_integer field_value,
			       u32 field_datum_byte_offset);

void
acpi_ex_get_buffer_datum(acpi_integer * datum,
			 void *buffer,
			 u32 buffer_length,
			 u32 byte_granularity, u32 buffer_offset);

void
acpi_ex_set_buffer_datum(acpi_integer merged_datum,
			 void *buffer,
			 u32 buffer_length,
			 u32 byte_granularity, u32 buffer_offset);

acpi_status
acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state,
			     union acpi_operand_object *obj_desc,
			     union acpi_operand_object **ret_buffer_desc);

acpi_status
acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
			    union acpi_operand_object *obj_desc,
			    union acpi_operand_object **result_desc);

/*
 * exfldio - low level field I/O
 */
acpi_status
acpi_ex_extract_from_field(union acpi_operand_object *obj_desc,
			   void *buffer, u32 buffer_length);

acpi_status
acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
			  void *buffer, u32 buffer_length);

acpi_status
acpi_ex_access_region(union acpi_operand_object *obj_desc,
		      u32 field_datum_byte_offset,
		      acpi_integer * value, u32 read_write);

/*
 * exmisc - misc support routines
 */
acpi_status
acpi_ex_get_object_reference(union acpi_operand_object *obj_desc,
			     union acpi_operand_object **return_desc,
			     struct acpi_walk_state *walk_state);

acpi_status
acpi_ex_concat_template(union acpi_operand_object *obj_desc,
			union acpi_operand_object *obj_desc2,
			union acpi_operand_object **actual_return_desc,
			struct acpi_walk_state *walk_state);

acpi_status
acpi_ex_do_concatenate(union acpi_operand_object *obj_desc,
		       union acpi_operand_object *obj_desc2,
		       union acpi_operand_object **actual_return_desc,
		       struct acpi_walk_state *walk_state);

acpi_status
acpi_ex_do_logical_numeric_op(u16 opcode,
			      acpi_integer integer0,
			      acpi_integer integer1, u8 * logical_result);

acpi_status
acpi_ex_do_logical_op(u16 opcode,
		      union acpi_operand_object *operand0,
		      union acpi_operand_object *operand1, u8 * logical_result);

acpi_integer
acpi_ex_do_math_op(u16 opcode, acpi_integer operand0, acpi_integer operand1);

acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state);

acpi_status acpi_ex_create_processor(struct acpi_walk_state *walk_state);

acpi_status acpi_ex_create_power_resource(struct acpi_walk_state *walk_state);

acpi_status
acpi_ex_create_region(u8 * aml_start,
		      u32 aml_length,
		      u8 region_space, struct acpi_walk_state *walk_state);

acpi_status acpi_ex_create_table_region(struct acpi_walk_state *walk_state);

acpi_status acpi_ex_create_event(struct acpi_walk_state *walk_state);

acpi_status acpi_ex_create_alias(struct acpi_walk_state *walk_state);

acpi_status
acpi_ex_create_method(u8 * aml_start,
		      u32 aml_length, struct acpi_walk_state *walk_state);

/*
 * exconfig - dynamic table load/unload
 */
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
acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
		      union acpi_operand_object **return_desc);

acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle);

/*
 * exmutex - mutex support
 */
acpi_status
acpi_ex_acquire_mutex(union acpi_operand_object *time_desc,
		      union acpi_operand_object *obj_desc,
		      struct acpi_walk_state *walk_state);

acpi_status
acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
		      struct acpi_walk_state *walk_state);

void acpi_ex_release_all_mutexes(struct acpi_thread_state *thread);

void acpi_ex_unlink_mutex(union acpi_operand_object *obj_desc);

/*
 * exprep - ACPI AML execution - prep utilities
 */
acpi_status
acpi_ex_prep_common_field_object(union acpi_operand_object *obj_desc,
				 u8 field_flags,
				 u8 field_attribute,