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kernel-fxtec-pro1x/include/acpi/acstruct.h
Robert Moore 73459f73e5 ACPICA 20050617-0624 from Bob Moore <robert.moore@intel.com> 
ACPICA 20050617:

Moved the object cache operations into the OS interface
layer (OSL) to allow the host OS to handle these operations
if desired (for example, the Linux OSL will invoke the
slab allocator).  This support is optional; the compile
time define ACPI_USE_LOCAL_CACHE may be used to utilize
the original cache code in the ACPI CA core.  The new OSL
interfaces are shown below.  See utalloc.c for an example
implementation, and acpiosxf.h for the exact interface
definitions.  Thanks to Alexey Starikovskiy.
	acpi_os_create_cache
	acpi_os_delete_cache
	acpi_os_purge_cache
	acpi_os_acquire_object
	acpi_os_release_object

Modified the interfaces to acpi_os_acquire_lock and
acpi_os_release_lock to return and restore a flags
parameter.  This fits better with many OS lock models.
Note: the current execution state (interrupt handler
or not) is no longer passed to these interfaces.  If
necessary, the OSL must determine this state by itself, a
simple and fast operation.  Thanks to Alexey Starikovskiy.

Fixed a problem in the ACPI table handling where a valid
XSDT was assumed present if the revision of the RSDP
was 2 or greater.  According to the ACPI specification,
the XSDT is optional in all cases, and the table manager
therefore now checks for both an RSDP >=2 and a valid
XSDT pointer.  Otherwise, the RSDT pointer is used.
Some ACPI 2.0 compliant BIOSs contain only the RSDT.

Fixed an interpreter problem with the Mid() operator in the
case of an input string where the resulting output string
is of zero length.  It now correctly returns a valid,
null terminated string object instead of a string object
with a null pointer.

Fixed a problem with the control method argument handling
to allow a store to an Arg object that already contains an
object of type Device.  The Device object is now correctly
overwritten.  Previously, an error was returned.

ACPICA 20050624:

Modified the new OSL cache interfaces to use ACPI_CACHE_T
as the type for the host-defined cache object.  This allows
the OSL implementation to define and type this object in
any manner desired, simplifying the OSL implementation.
For example, ACPI_CACHE_T is defined as kmem_cache_t for
Linux, and should be defined in the OS-specific header
file for other operating systems as required.

Changed the interface to AcpiOsAcquireObject to directly
return the requested object as the function return (instead
of ACPI_STATUS.) This change was made for performance
reasons, since this is the purpose of the interface in the
first place.  acpi_os_acquire_object is now similar to the
acpi_os_allocate interface.  Thanks to Alexey Starikovskiy.

Modified the initialization sequence in
acpi_initialize_subsystem to call the OSL interface
acpi_osl_initialize first, before any local initialization.
This change was required because the global initialization
now calls OSL interfaces.

Restructured the code base to split some files because
of size and/or because the code logically belonged in a
separate file.  New files are listed below.

  utilities/utcache.c	/* Local cache interfaces */
  utilities/utmutex.c	/* Local mutex support */
  utilities/utstate.c	/* State object support */
  parser/psloop.c	/* Main AML parse loop */

Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-13 23:45:36 -04:00

225 lines
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/******************************************************************************
*
* Name: acstruct.h - Internal structs
*
*****************************************************************************/
/*
* 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 __ACSTRUCT_H__
#define __ACSTRUCT_H__
/*****************************************************************************
*
* Tree walking typedefs and structs
*
****************************************************************************/
/*
* Walk state - current state of a parse tree walk. Used for both a leisurely stroll through
* the tree (for whatever reason), and for control method execution.
*/
#define ACPI_NEXT_OP_DOWNWARD 1
#define ACPI_NEXT_OP_UPWARD 2
#define ACPI_WALK_NON_METHOD 0
#define ACPI_WALK_METHOD 1
#define ACPI_WALK_METHOD_RESTART 2
#define ACPI_WALK_CONST_REQUIRED 3
#define ACPI_WALK_CONST_OPTIONAL 4
struct acpi_walk_state
{
u8 data_type; /* To differentiate various internal objs MUST BE FIRST!*/\
u8 walk_type;
acpi_owner_id owner_id; /* Owner of objects created during the walk */
u8 last_predicate; /* Result of last predicate */
u8 reserved; /* For alignment */
u8 current_result; /* */
u8 next_op_info; /* Info about next_op */
u8 num_operands; /* Stack pointer for Operands[] array */
u8 return_used;
u16 opcode; /* Current AML opcode */
u8 scope_depth;
u8 pass_number; /* Parse pass during table load */
u32 arg_count; /* push for fixed or var args */
u32 aml_offset;
u32 arg_types;
u32 method_breakpoint; /* For single stepping */
u32 user_breakpoint; /* User AML breakpoint */
u32 parse_flags;
u32 prev_arg_types;
u8 *aml_last_while;
struct acpi_namespace_node arguments[ACPI_METHOD_NUM_ARGS]; /* Control method arguments */
union acpi_operand_object **caller_return_desc;
union acpi_generic_state *control_state; /* List of control states (nested IFs) */
struct acpi_namespace_node *deferred_node; /* Used when executing deferred opcodes */
struct acpi_gpe_event_info *gpe_event_info; /* Info for GPE (_Lxx/_Exx methods only */
union acpi_operand_object *implicit_return_obj;
struct acpi_namespace_node local_variables[ACPI_METHOD_NUM_LOCALS]; /* Control method locals */
struct acpi_namespace_node *method_call_node; /* Called method Node*/
union acpi_parse_object *method_call_op; /* method_call Op if running a method */
union acpi_operand_object *method_desc; /* Method descriptor if running a method */
struct acpi_namespace_node *method_node; /* Method node if running a method. */
union acpi_parse_object *op; /* Current parser op */
union acpi_operand_object *operands[ACPI_OBJ_NUM_OPERANDS+1]; /* Operands passed to the interpreter (+1 for NULL terminator) */
const struct acpi_opcode_info *op_info; /* Info on current opcode */
union acpi_parse_object *origin; /* Start of walk [Obsolete] */
union acpi_operand_object **params;
struct acpi_parse_state parser_state; /* Current state of parser */
union acpi_operand_object *result_obj;
union acpi_generic_state *results; /* Stack of accumulated results */
union acpi_operand_object *return_desc; /* Return object, if any */
union acpi_generic_state *scope_info; /* Stack of nested scopes */
union acpi_parse_object *prev_op; /* Last op that was processed */
union acpi_parse_object *next_op; /* next op to be processed */
acpi_parse_downwards descending_callback;
acpi_parse_upwards ascending_callback;
struct acpi_thread_state *thread;
struct acpi_walk_state *next; /* Next walk_state in list */
};
/* Info used by acpi_ps_init_objects */
struct acpi_init_walk_info
{
u16 method_count;
u16 device_count;
u16 op_region_count;
u16 field_count;
u16 buffer_count;
u16 package_count;
u16 op_region_init;
u16 field_init;
u16 buffer_init;
u16 package_init;
u16 object_count;
struct acpi_table_desc *table_desc;
};
/* Info used by acpi_ns_initialize_devices */
struct acpi_device_walk_info
{
u16 device_count;
u16 num_STA;
u16 num_INI;
struct acpi_table_desc *table_desc;
};
/* TBD: [Restructure] Merge with struct above */
struct acpi_walk_info
{
u32 debug_level;
u32 owner_id;
u8 display_type;
};
/* Display Types */
#define ACPI_DISPLAY_SUMMARY 0
#define ACPI_DISPLAY_OBJECTS 1
#define ACPI_DISPLAY_MASK 1
#define ACPI_DISPLAY_SHORT 2
struct acpi_get_devices_info
{
acpi_walk_callback user_function;
void *context;
char *hid;
};
union acpi_aml_operands
{
union acpi_operand_object *operands[7];
struct
{
struct acpi_object_integer *type;
struct acpi_object_integer *code;
struct acpi_object_integer *argument;
} fatal;
struct
{
union acpi_operand_object *source;
struct acpi_object_integer *index;
union acpi_operand_object *target;
} index;
struct
{
union acpi_operand_object *source;
struct acpi_object_integer *index;
struct acpi_object_integer *length;
union acpi_operand_object *target;
} mid;
};
/* Internal method parameter list */
struct acpi_parameter_info
{
struct acpi_namespace_node *node;
union acpi_operand_object **parameters;
union acpi_operand_object *return_object;
u8 parameter_type;
u8 return_object_type;
};
/* Types for parameter_type above */
#define ACPI_PARAM_ARGS 0
#define ACPI_PARAM_GPE 1
#endif
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