include/acpi/acparser.h

/******************************************************************************
 *
 * Module Name: acparser.h - AML Parser subcomponent prototypes and defines
 *
 *****************************************************************************/

/*
 * 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.
 */


#ifndef __ACPARSER_H__
#define __ACPARSER_H__


#define OP_HAS_RETURN_VALUE             1

/* variable # arguments */

#define ACPI_VAR_ARGS                   ACPI_UINT32_MAX


#define ACPI_PARSE_DELETE_TREE          0x0001
#define ACPI_PARSE_NO_TREE_DELETE       0x0000
#define ACPI_PARSE_TREE_MASK            0x0001

#define ACPI_PARSE_LOAD_PASS1           0x0010
#define ACPI_PARSE_LOAD_PASS2           0x0020
#define ACPI_PARSE_EXECUTE              0x0030
#define ACPI_PARSE_MODE_MASK            0x0030

#define ACPI_PARSE_DEFERRED_OP          0x0100


/******************************************************************************
 *
 * Parser interfaces
 *
 *****************************************************************************/


/*
 * psxface - Parser external interfaces
 */
acpi_status
acpi_psx_load_table (
	u8                              *pcode_addr,
	u32                             pcode_length);

acpi_status
acpi_psx_execute (
	struct acpi_parameter_info      *info);


/*
 * psargs - Parse AML opcode arguments
 */
u8 *
acpi_ps_get_next_package_end (
	struct acpi_parse_state         *parser_state);

char *
acpi_ps_get_next_namestring (
	struct acpi_parse_state         *parser_state);

void
acpi_ps_get_next_simple_arg (
	struct acpi_parse_state         *parser_state,
	u32                             arg_type,
	union acpi_parse_object         *arg);

acpi_status
acpi_ps_get_next_namepath (
	struct acpi_walk_state          *walk_state,
	struct acpi_parse_state         *parser_state,
	union acpi_parse_object         *arg,
	u8                              method_call);

acpi_status
acpi_ps_get_next_arg (
	struct acpi_walk_state          *walk_state,
	struct acpi_parse_state         *parser_state,
	u32                             arg_type,
	union acpi_parse_object         **return_arg);


/*
 * psfind
 */
union acpi_parse_object *
acpi_ps_find_name (
	union acpi_parse_object         *scope,
	u32                             name,
	u32                             opcode);

union acpi_parse_object*
acpi_ps_get_parent (
	union acpi_parse_object         *op);


/*
 * psopcode - AML Opcode information
 */
const struct acpi_opcode_info *
acpi_ps_get_opcode_info (
	u16                             opcode);

char *
acpi_ps_get_opcode_name (
	u16                             opcode);


/*
 * psparse - top level parsing routines
 */
acpi_status
acpi_ps_parse_aml (
	struct acpi_walk_state          *walk_state);

u32
acpi_ps_get_opcode_size (
	u32                             opcode);

u16
acpi_ps_peek_opcode (
	struct acpi_parse_state         *state);


/*
 * psscope - Scope stack management routines
 */
acpi_status
acpi_ps_init_scope (
	struct acpi_parse_state         *parser_state,
	union acpi_parse_object         *root);

union acpi_parse_object *
acpi_ps_get_parent_scope (
	struct acpi_parse_state         *state);

u8
acpi_ps_has_completed_scope (
	struct acpi_parse_state         *parser_state);

void
acpi_ps_pop_scope (
	struct acpi_parse_state         *parser_state,
	union acpi_parse_object         **op,
	u32                             *arg_list,
	u32                             *arg_count);

acpi_status
acpi_ps_push_scope (
	struct acpi_parse_state         *parser_state,
	union acpi_parse_object         *op,
	u32                             remaining_args,
	u32                             arg_count);

void
acpi_ps_cleanup_scope (
	struct acpi_parse_state         *state);


/*
 * pstree - parse tree manipulation routines
 */
void
acpi_ps_append_arg(
	union acpi_parse_object         *op,
	union acpi_parse_object         *arg);

union acpi_parse_object*
acpi_ps_find (
	union acpi_parse_object         *scope,
	char                            *path,
	u16                             opcode,
	u32                             create);

union acpi_parse_object *
acpi_ps_get_arg(
	union acpi_parse_object         *op,
	u32                              argn);

#ifdef	ACPI_FUTURE_USAGE
union acpi_parse_object *
acpi_ps_get_depth_next (
	union acpi_parse_object         *origin,
	union acpi_parse_object         *op);
#endif	/* ACPI_FUTURE_USAGE */


/*
 * pswalk - parse tree walk routines
 */
acpi_status
acpi_ps_walk_parsed_aml (
	union acpi_parse_object         *start_op,
	union acpi_parse_object         *end_op,
	union acpi_operand_object       *mth_desc,
	struct acpi_namespace_node      *start_node,
	union acpi_operand_object       **params,
	union acpi_operand_object       **caller_return_desc,
	acpi_owner_id                   owner_id,
	acpi_parse_downwards            descending_callback,
	acpi_parse_upwards              ascending_callback);

acpi_status
acpi_ps_get_next_walk_op (
	struct acpi_walk_state          *walk_state,
	union acpi_parse_object         *op,
	acpi_parse_upwards              ascending_callback);

acpi_status
acpi_ps_delete_completed_op (
	struct acpi_walk_state          *walk_state);

void
acpi_ps_delete_parse_tree (
	union acpi_parse_object         *root);


/*
 * psutils - parser utilities
 */
union acpi_parse_object *
acpi_ps_create_scope_op (
	void);

void
acpi_ps_init_op (
	union acpi_parse_object         *op,
	u16                             opcode);

union acpi_parse_object *
acpi_ps_alloc_op (
	u16                             opcode);

void
acpi_ps_free_op (
	union acpi_parse_object         *op);

u8
acpi_ps_is_leading_char (
	u32                             c);

u8
acpi_ps_is_prefix_char (
	u32                             c);

#ifdef	ACPI_FUTURE_USAGE
u32
acpi_ps_get_name(
	union acpi_parse_object         *op);
#endif	/* ACPI_FUTURE_USAGE */

void
acpi_ps_set_name(
	union acpi_parse_object         *op,
	u32                             name);

#ifdef ACPI_ENABLE_OBJECT_CACHE
void
acpi_ps_delete_parse_cache (
	void);
#endif


/*
 * psdump - display parser tree
 */
u32
acpi_ps_sprint_path (
	char                            *buffer_start,
	u32                             buffer_size,
	union acpi_parse_object         *op);

u32
acpi_ps_sprint_op (
	char                            *buffer_start,
	u32                             buffer_size,
	union acpi_parse_object         *op);

void
acpi_ps_show (
	union acpi_parse_object         *op);


#endif /* __ACPARSER_H__ */