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linux/include/acpi/acdispat.h
Bob Moore 967440e3be ACPI: ACPICA 20060623 
Implemented a new acpi_spinlock type for the OSL lock
interfaces.  This allows the type to be customized to
the host OS for improved efficiency (since a spinlock is
usually a very small object.)

Implemented support for "ignored" bits in the ACPI
registers.  According to the ACPI specification, these
bits should be preserved when writing the registers via
a read/modify/write cycle. There are 3 bits preserved
in this manner: PM1_CONTROL[0] (SCI_EN), PM1_CONTROL[9],
and PM1_STATUS[11].
http://bugzilla.kernel.org/show_bug.cgi?id=3691

Implemented the initial deployment of new OSL mutex
interfaces.  Since some host operating systems have
separate mutex and semaphore objects, this feature was
requested. The base code now uses mutexes (and the new
mutex interfaces) wherever a binary semaphore was used
previously. However, for the current release, the mutex
interfaces are defined as macros to map them to the
existing semaphore interfaces.

Fixed several problems with the support for the control
method SyncLevel parameter. The SyncLevel now works
according to the ACPI specification and in concert with the
Mutex SyncLevel parameter, since the current SyncLevel is
a property of the executing thread. Mutual exclusion for
control methods is now implemented with a mutex instead
of a semaphore.

Fixed three instances of the use of the C shift operator
in the bitfield support code (exfldio.c) to avoid the use
of a shift value larger than the target data width. The
behavior of C compilers is undefined in this case and can
cause unpredictable results, and therefore the case must
be detected and avoided.  (Fiodor Suietov)

Added an info message whenever an SSDT or OEM table
is loaded dynamically via the Load() or LoadTable()
ASL operators. This should improve debugging capability
since it will show exactly what tables have been loaded
(beyond the tables present in the RSDT/XSDT.)

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-28 03:11:38 -04:00

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/******************************************************************************
*
* Name: acdispat.h - dispatcher (parser to interpreter interface)
*
*****************************************************************************/
/*
* 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 _ACDISPAT_H_
#define _ACDISPAT_H_
#define NAMEOF_LOCAL_NTE "__L0"
#define NAMEOF_ARG_NTE "__A0"
/*
* dsopcode - support for late evaluation
*/
acpi_status
acpi_ds_get_buffer_field_arguments(union acpi_operand_object *obj_desc);
acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *rgn_desc);
acpi_status acpi_ds_get_buffer_arguments(union acpi_operand_object *obj_desc);
acpi_status acpi_ds_get_package_arguments(union acpi_operand_object *obj_desc);
acpi_status
acpi_ds_eval_buffer_field_operands(struct acpi_walk_state *walk_state,
union acpi_parse_object *op);
acpi_status
acpi_ds_eval_region_operands(struct acpi_walk_state *walk_state,
union acpi_parse_object *op);
acpi_status
acpi_ds_eval_data_object_operands(struct acpi_walk_state *walk_state,
union acpi_parse_object *op,
union acpi_operand_object *obj_desc);
acpi_status acpi_ds_initialize_region(acpi_handle obj_handle);
/*
* dsctrl - Parser/Interpreter interface, control stack routines
*/
acpi_status
acpi_ds_exec_begin_control_op(struct acpi_walk_state *walk_state,
union acpi_parse_object *op);
acpi_status
acpi_ds_exec_end_control_op(struct acpi_walk_state *walk_state,
union acpi_parse_object *op);
/*
* dsexec - Parser/Interpreter interface, method execution callbacks
*/
acpi_status
acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state,
union acpi_operand_object *result_obj);
acpi_status
acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state,
union acpi_parse_object **out_op);
acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *state);
/*
* dsfield - Parser/Interpreter interface for AML fields
*/
acpi_status
acpi_ds_create_field(union acpi_parse_object *op,
struct acpi_namespace_node *region_node,
struct acpi_walk_state *walk_state);
acpi_status
acpi_ds_create_bank_field(union acpi_parse_object *op,
struct acpi_namespace_node *region_node,
struct acpi_walk_state *walk_state);
acpi_status
acpi_ds_create_index_field(union acpi_parse_object *op,
struct acpi_namespace_node *region_node,
struct acpi_walk_state *walk_state);
acpi_status
acpi_ds_create_buffer_field(union acpi_parse_object *op,
struct acpi_walk_state *walk_state);
acpi_status
acpi_ds_init_field_objects(union acpi_parse_object *op,
struct acpi_walk_state *walk_state);
/*
* dsload - Parser/Interpreter interface, namespace load callbacks
*/
acpi_status
acpi_ds_load1_begin_op(struct acpi_walk_state *walk_state,
union acpi_parse_object **out_op);
acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state);
acpi_status
acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
union acpi_parse_object **out_op);
acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state);
acpi_status
acpi_ds_init_callbacks(struct acpi_walk_state *walk_state, u32 pass_number);
/*
* dsmthdat - method data (locals/args)
*/
acpi_status
acpi_ds_store_object_to_local(u16 opcode,
u32 index,
union acpi_operand_object *src_desc,
struct acpi_walk_state *walk_state);
acpi_status
acpi_ds_method_data_get_entry(u16 opcode,
u32 index,
struct acpi_walk_state *walk_state,
union acpi_operand_object ***node);
void acpi_ds_method_data_delete_all(struct acpi_walk_state *walk_state);
u8 acpi_ds_is_method_value(union acpi_operand_object *obj_desc);
acpi_status
acpi_ds_method_data_get_value(u16 opcode,
u32 index,
struct acpi_walk_state *walk_state,
union acpi_operand_object **dest_desc);
acpi_status
acpi_ds_method_data_init_args(union acpi_operand_object **params,
u32 max_param_count,
struct acpi_walk_state *walk_state);
acpi_status
acpi_ds_method_data_get_node(u16 opcode,
u32 index,
struct acpi_walk_state *walk_state,
struct acpi_namespace_node **node);
void acpi_ds_method_data_init(struct acpi_walk_state *walk_state);
/*
* dsmethod - Parser/Interpreter interface - control method parsing
*/
acpi_status acpi_ds_parse_method(struct acpi_namespace_node *node);
acpi_status
acpi_ds_call_control_method(struct acpi_thread_state *thread,
struct acpi_walk_state *walk_state,
union acpi_parse_object *op);
acpi_status
acpi_ds_restart_control_method(struct acpi_walk_state *walk_state,
union acpi_operand_object *return_desc);
void
acpi_ds_terminate_control_method(union acpi_operand_object *method_desc,
struct acpi_walk_state *walk_state);
acpi_status
acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
union acpi_operand_object *obj_desc,
struct acpi_walk_state *walk_state);
acpi_status
acpi_ds_method_error(acpi_status status, struct acpi_walk_state *walk_state);
/*
* dsinit
*/
acpi_status
acpi_ds_initialize_objects(struct acpi_table_desc *table_desc,
struct acpi_namespace_node *start_node);
/*
* dsobject - Parser/Interpreter interface - object initialization and conversion
*/
acpi_status
acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state,
union acpi_parse_object *op,
u32 buffer_length,
union acpi_operand_object **obj_desc_ptr);
acpi_status
acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
union acpi_parse_object *op,
u32 package_length,
union acpi_operand_object **obj_desc);
acpi_status
acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
union acpi_parse_object *op,
u16 opcode, union acpi_operand_object **obj_desc);
acpi_status
acpi_ds_create_node(struct acpi_walk_state *walk_state,
struct acpi_namespace_node *node,
union acpi_parse_object *op);
/*
* dsutils - Parser/Interpreter interface utility routines
*/
void acpi_ds_clear_implicit_return(struct acpi_walk_state *walk_state);
u8
acpi_ds_do_implicit_return(union acpi_operand_object *return_desc,
struct acpi_walk_state *walk_state,
u8 add_reference);
u8
acpi_ds_is_result_used(union acpi_parse_object *op,
struct acpi_walk_state *walk_state);
void
acpi_ds_delete_result_if_not_used(union acpi_parse_object *op,
union acpi_operand_object *result_obj,
struct acpi_walk_state *walk_state);
acpi_status
acpi_ds_create_operand(struct acpi_walk_state *walk_state,
union acpi_parse_object *arg, u32 args_remaining);
acpi_status
acpi_ds_create_operands(struct acpi_walk_state *walk_state,
union acpi_parse_object *first_arg);
acpi_status acpi_ds_resolve_operands(struct acpi_walk_state *walk_state);
void acpi_ds_clear_operands(struct acpi_walk_state *walk_state);
/*
* dswscope - Scope Stack manipulation
*/
acpi_status
acpi_ds_scope_stack_push(struct acpi_namespace_node *node,
acpi_object_type type,
struct acpi_walk_state *walk_state);
acpi_status acpi_ds_scope_stack_pop(struct acpi_walk_state *walk_state);
void acpi_ds_scope_stack_clear(struct acpi_walk_state *walk_state);
/*
* dswstate - parser WALK_STATE management routines
*/
acpi_status
acpi_ds_obj_stack_push(void *object, struct acpi_walk_state *walk_state);
acpi_status
acpi_ds_obj_stack_pop(u32 pop_count, struct acpi_walk_state *walk_state);
struct acpi_walk_state *acpi_ds_create_walk_state(acpi_owner_id owner_id,
union acpi_parse_object
*origin,
union acpi_operand_object
*mth_desc,
struct acpi_thread_state
*thread);
acpi_status
acpi_ds_init_aml_walk(struct acpi_walk_state *walk_state,
union acpi_parse_object *op,
struct acpi_namespace_node *method_node,
u8 * aml_start,
u32 aml_length,
struct acpi_evaluate_info *info, u8 pass_number);
acpi_status
acpi_ds_obj_stack_pop_and_delete(u32 pop_count,
struct acpi_walk_state *walk_state);
void acpi_ds_delete_walk_state(struct acpi_walk_state *walk_state);
struct acpi_walk_state *acpi_ds_pop_walk_state(struct acpi_thread_state
*thread);
void
acpi_ds_push_walk_state(struct acpi_walk_state *walk_state,
struct acpi_thread_state *thread);
acpi_status acpi_ds_result_stack_pop(struct acpi_walk_state *walk_state);
acpi_status acpi_ds_result_stack_push(struct acpi_walk_state *walk_state);
acpi_status acpi_ds_result_stack_clear(struct acpi_walk_state *walk_state);
struct acpi_walk_state *acpi_ds_get_current_walk_state(struct acpi_thread_state
*thread);
#ifdef ACPI_FUTURE_USAGE
acpi_status
acpi_ds_result_remove(union acpi_operand_object **object,
u32 index, struct acpi_walk_state *walk_state);
#endif
acpi_status
acpi_ds_result_pop(union acpi_operand_object **object,
struct acpi_walk_state *walk_state);
acpi_status
acpi_ds_result_push(union acpi_operand_object *object,
struct acpi_walk_state *walk_state);
acpi_status
acpi_ds_result_pop_from_bottom(union acpi_operand_object **object,
struct acpi_walk_state *walk_state);
#endif /* _ACDISPAT_H_ */
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