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linux-2.6/include/acpi/acparser.h
Bob Moore 4119532c95 ACPI: ACPICA 20060526 
Restructured, flattened, and simplified the internal
interfaces for namespace object evaluation - resulting
in smaller code, less CPU stack use, and fewer
interfaces. (With assistance from Mikhail Kouzmich)

Fixed a problem with the CopyObject operator where the
first parameter was not typed correctly for the parser,
interpreter, compiler, and disassembler. Caused various
errors and unexpected behavior.

Fixed a problem where a ShiftLeft or ShiftRight of
more than 64 bits produced incorrect results with some
C compilers. Since the behavior of C compilers when
the shift value is larger than the datatype width is
apparently not well defined, the interpreter now detects
this condition and simply returns zero as expected in all
such cases. (BZ 395)

Fixed problem reports (Valery Podrezov) integrated: -
Update String-to-Integer conversion to match ACPI 3.0A spec
http://bugzilla.kernel.org/show_bug.cgi?id=5329
Allow interpreter to handle nested method declarations
http://bugzilla.kernel.org/show_bug.cgi?id=5361

Fixed problem reports (Fiodor Suietov) integrated: -
acpi_terminate() doesn't free debug memory allocation
list objects (BZ 355) - After Core Subsystem
shutdown, acpi_subsystem_status() returns AE_OK (BZ 356) -
acpi_os_unmap_memory() for RSDP can be invoked inconsistently
(BZ 357) - Resource Manager should return AE_TYPE for
non-device objects (BZ 358) - Incomplete cleanup branch
in AcpiNsEvaluateRelative (BZ 359) - Use acpi_os_free()
instead of ACPI_FREE in acpi_rs_set_srs_method_data (BZ 360)
- Incomplete cleanup branch in acpi_ps_parse_aml (BZ 361) -
Incomplete cleanup branch in acpi_ds_delete_walk_state (BZ 362)
- acpi_get_table_header returns AE_NO_ACPI_TABLES until DSDT
is loaded (BZ 365) - Status of the Global Initialization
Handler call not used (BZ 366) - Incorrect object parameter
to Global Initialization Handler (BZ 367)

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-14 02:44:35 -04:00

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/******************************************************************************
*
* Module Name: acparser.h - AML Parser subcomponent prototypes and defines
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2006, 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 number of arguments. This field must be 32 bits */
#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
#define ACPI_PARSE_DISASSEMBLE 0x0200
/******************************************************************************
*
* Parser interfaces
*
*****************************************************************************/
/*
* psxface - Parser external interfaces
*/
acpi_status acpi_ps_execute_method(struct acpi_evaluate_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);
acpi_status
acpi_ps_complete_this_op(struct acpi_walk_state *walk_state,
union acpi_parse_object *op);
acpi_status
acpi_ps_next_parse_state(struct acpi_walk_state *walk_state,
union acpi_parse_object *op,
acpi_status callback_status);
/*
* psloop - main parse loop
*/
acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_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);
/*
* 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__ */
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