2005-04-16 16:20:36 -06:00
|
|
|
/******************************************************************************
|
|
|
|
*
|
|
|
|
* Module Name: dsobject - Dispatcher object management routines
|
|
|
|
*
|
|
|
|
*****************************************************************************/
|
|
|
|
|
|
|
|
/*
|
2015-02-05 00:20:45 -07:00
|
|
|
* Copyright (C) 2000 - 2015, Intel Corp.
|
2005-04-16 16:20:36 -06:00
|
|
|
* 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.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <acpi/acpi.h>
|
2009-01-08 22:30:03 -07:00
|
|
|
#include "accommon.h"
|
|
|
|
#include "acparser.h"
|
|
|
|
#include "amlcode.h"
|
|
|
|
#include "acdispat.h"
|
|
|
|
#include "acnamesp.h"
|
|
|
|
#include "acinterp.h"
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
#define _COMPONENT ACPI_DISPATCHER
|
2005-08-04 22:44:28 -06:00
|
|
|
ACPI_MODULE_NAME("dsobject")
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2005-12-16 15:05:00 -07:00
|
|
|
/* Local prototypes */
|
2005-04-18 20:49:35 -06:00
|
|
|
static acpi_status
|
2005-08-04 22:44:28 -06:00
|
|
|
acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
|
|
|
|
union acpi_parse_object *op,
|
|
|
|
union acpi_operand_object **obj_desc_ptr);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
#ifndef ACPI_NO_METHOD_EXECUTION
|
2005-04-18 20:49:35 -06:00
|
|
|
/*******************************************************************************
|
2005-04-16 16:20:36 -06:00
|
|
|
*
|
|
|
|
* FUNCTION: acpi_ds_build_internal_object
|
|
|
|
*
|
|
|
|
* PARAMETERS: walk_state - Current walk state
|
2012-07-11 19:40:10 -06:00
|
|
|
* op - Parser object to be translated
|
2005-04-16 16:20:36 -06:00
|
|
|
* obj_desc_ptr - Where the ACPI internal object is returned
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: Translate a parser Op object to the equivalent namespace object
|
|
|
|
* Simple objects are any objects other than a package object!
|
|
|
|
*
|
2005-04-18 20:49:35 -06:00
|
|
|
******************************************************************************/
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2005-04-18 20:49:35 -06:00
|
|
|
static acpi_status
|
2005-08-04 22:44:28 -06:00
|
|
|
acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
|
|
|
|
union acpi_parse_object *op,
|
|
|
|
union acpi_operand_object **obj_desc_ptr)
|
2005-04-16 16:20:36 -06:00
|
|
|
{
|
2005-08-04 22:44:28 -06:00
|
|
|
union acpi_operand_object *obj_desc;
|
|
|
|
acpi_status status;
|
2010-07-05 20:37:13 -06:00
|
|
|
acpi_object_type type;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
ACPI: ACPICA 20060421
Removed a device initialization optimization introduced in
20051216 where the _STA method was not run unless an _INI
was also present for the same device. This optimization
could cause problems because it could allow _INI methods
to be run within a not-present device subtree (If a
not-present device had no _INI, _STA would not be run,
the not-present status would not be discovered, and the
children of the device would be incorrectly traversed.)
Implemented a new _STA optimization where namespace
subtrees that do not contain _INI are identified and
ignored during device initialization. Selectively running
_STA can significantly improve boot time on large machines
(with assistance from Len Brown.)
Implemented support for the device initialization case
where the returned _STA flags indicate a device not-present
but functioning. In this case, _INI is not run, but the
device children are examined for presence, as per the
ACPI specification.
Implemented an additional change to the IndexField support
in order to conform to MS behavior. The value written to
the Index Register is not simply a byte offset, it is a
byte offset in units of the access width of the parent
Index Field. (Fiodor Suietov)
Defined and deployed a new OSL interface,
acpi_os_validate_address(). This interface is called during
the creation of all AML operation regions, and allows
the host OS to exert control over what addresses it will
allow the AML code to access. Operation Regions whose
addresses are disallowed will cause a runtime exception
when they are actually accessed (will not affect or abort
table loading.)
Defined and deployed a new OSL interface,
acpi_os_validate_interface(). This interface allows the host OS
to match the various "optional" interface/behavior strings
for the _OSI predefined control method as appropriate
(with assistance from Bjorn Helgaas.)
Restructured and corrected various problems in the
exception handling code paths within DsCallControlMethod
and DsTerminateControlMethod in dsmethod (with assistance
from Takayoshi Kochi.)
Modified the Linux source converter to ignore quoted string
literals while converting identifiers from mixed to lower
case. This will correct problems with the disassembler
and other areas where such strings must not be modified.
The ACPI_FUNCTION_* macros no longer require quotes around
the function name. This allows the Linux source converter
to convert the names, now that the converter ignores
quoted strings.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-21 15:15:00 -06:00
|
|
|
ACPI_FUNCTION_TRACE(ds_build_internal_object);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
*obj_desc_ptr = NULL;
|
|
|
|
if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) {
|
|
|
|
/*
|
2005-12-16 15:05:00 -07:00
|
|
|
* This is a named object reference. If this name was
|
2005-04-16 16:20:36 -06:00
|
|
|
* previously looked up in the namespace, it was stored in this op.
|
|
|
|
* Otherwise, go ahead and look it up now
|
|
|
|
*/
|
|
|
|
if (!op->common.node) {
|
2005-08-04 22:44:28 -06:00
|
|
|
status = acpi_ns_lookup(walk_state->scope_info,
|
|
|
|
op->common.value.string,
|
|
|
|
ACPI_TYPE_ANY,
|
|
|
|
ACPI_IMODE_EXECUTE,
|
|
|
|
ACPI_NS_SEARCH_PARENT |
|
|
|
|
ACPI_NS_DONT_OPEN_SCOPE, NULL,
|
2005-12-16 15:05:00 -07:00
|
|
|
ACPI_CAST_INDIRECT_PTR(struct
|
|
|
|
acpi_namespace_node,
|
|
|
|
&(op->
|
|
|
|
common.
|
|
|
|
node)));
|
2005-08-04 22:44:28 -06:00
|
|
|
if (ACPI_FAILURE(status)) {
|
2006-10-01 22:00:00 -06:00
|
|
|
|
2005-12-16 15:05:00 -07:00
|
|
|
/* Check if we are resolving a named reference within a package */
|
|
|
|
|
|
|
|
if ((status == AE_NOT_FOUND)
|
|
|
|
&& (acpi_gbl_enable_interpreter_slack)
|
|
|
|
&&
|
|
|
|
((op->common.parent->common.aml_opcode ==
|
|
|
|
AML_PACKAGE_OP)
|
|
|
|
|| (op->common.parent->common.aml_opcode ==
|
|
|
|
AML_VAR_PACKAGE_OP))) {
|
|
|
|
/*
|
|
|
|
* We didn't find the target and we are populating elements
|
|
|
|
* of a package - ignore if slack enabled. Some ASL code
|
|
|
|
* contains dangling invalid references in packages and
|
|
|
|
* expects that no exception will be issued. Leave the
|
|
|
|
* element as a null element. It cannot be used, but it
|
|
|
|
* can be overwritten by subsequent ASL code - this is
|
|
|
|
* typically the case.
|
|
|
|
*/
|
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
|
|
|
|
"Ignoring unresolved reference in package [%4.4s]\n",
|
|
|
|
walk_state->
|
|
|
|
scope_info->scope.
|
|
|
|
node->name.ascii));
|
|
|
|
|
|
|
|
return_ACPI_STATUS(AE_OK);
|
|
|
|
} else {
|
2006-01-27 14:43:00 -07:00
|
|
|
ACPI_ERROR_NAMESPACE(op->common.value.
|
|
|
|
string, status);
|
2005-12-16 15:05:00 -07:00
|
|
|
}
|
|
|
|
|
2005-08-04 22:44:28 -06:00
|
|
|
return_ACPI_STATUS(status);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
}
|
2007-10-17 14:10:18 -06:00
|
|
|
|
|
|
|
/* Special object resolution for elements of a package */
|
|
|
|
|
|
|
|
if ((op->common.parent->common.aml_opcode == AML_PACKAGE_OP) ||
|
|
|
|
(op->common.parent->common.aml_opcode ==
|
|
|
|
AML_VAR_PACKAGE_OP)) {
|
|
|
|
/*
|
|
|
|
* Attempt to resolve the node to a value before we insert it into
|
|
|
|
* the package. If this is a reference to a common data type,
|
|
|
|
* resolve it immediately. According to the ACPI spec, package
|
|
|
|
* elements can only be "data objects" or method references.
|
|
|
|
* Attempt to resolve to an Integer, Buffer, String or Package.
|
|
|
|
* If cannot, return the named reference (for things like Devices,
|
|
|
|
* Methods, etc.) Buffer Fields and Fields will resolve to simple
|
|
|
|
* objects (int/buf/str/pkg).
|
|
|
|
*
|
|
|
|
* NOTE: References to things like Devices, Methods, Mutexes, etc.
|
|
|
|
* will remain as named references. This behavior is not described
|
|
|
|
* in the ACPI spec, but it appears to be an oversight.
|
|
|
|
*/
|
2008-04-10 09:06:40 -06:00
|
|
|
obj_desc =
|
|
|
|
ACPI_CAST_PTR(union acpi_operand_object,
|
|
|
|
op->common.node);
|
2007-10-17 14:10:18 -06:00
|
|
|
|
|
|
|
status =
|
|
|
|
acpi_ex_resolve_node_to_value(ACPI_CAST_INDIRECT_PTR
|
|
|
|
(struct
|
|
|
|
acpi_namespace_node,
|
|
|
|
&obj_desc),
|
|
|
|
walk_state);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
|
|
|
}
|
|
|
|
|
2010-07-05 20:37:13 -06:00
|
|
|
/*
|
|
|
|
* Special handling for Alias objects. We need to setup the type
|
|
|
|
* and the Op->Common.Node to point to the Alias target. Note,
|
|
|
|
* Alias has at most one level of indirection internally.
|
|
|
|
*/
|
|
|
|
type = op->common.node->type;
|
|
|
|
if (type == ACPI_TYPE_LOCAL_ALIAS) {
|
|
|
|
type = obj_desc->common.type;
|
|
|
|
op->common.node =
|
|
|
|
ACPI_CAST_PTR(struct acpi_namespace_node,
|
|
|
|
op->common.node->object);
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (type) {
|
2007-10-17 14:10:18 -06:00
|
|
|
/*
|
|
|
|
* For these types, we need the actual node, not the subobject.
|
2008-04-10 09:06:39 -06:00
|
|
|
* However, the subobject did not get an extra reference count above.
|
|
|
|
*
|
|
|
|
* TBD: should ex_resolve_node_to_value be changed to fix this?
|
|
|
|
*/
|
|
|
|
case ACPI_TYPE_DEVICE:
|
|
|
|
case ACPI_TYPE_THERMAL:
|
|
|
|
|
|
|
|
acpi_ut_add_reference(op->common.node->object);
|
|
|
|
|
|
|
|
/*lint -fallthrough */
|
|
|
|
/*
|
|
|
|
* For these types, we need the actual node, not the subobject.
|
|
|
|
* The subobject got an extra reference count in ex_resolve_node_to_value.
|
2007-10-17 14:10:18 -06:00
|
|
|
*/
|
|
|
|
case ACPI_TYPE_MUTEX:
|
|
|
|
case ACPI_TYPE_METHOD:
|
|
|
|
case ACPI_TYPE_POWER:
|
|
|
|
case ACPI_TYPE_PROCESSOR:
|
|
|
|
case ACPI_TYPE_EVENT:
|
|
|
|
case ACPI_TYPE_REGION:
|
|
|
|
|
2008-04-10 09:06:39 -06:00
|
|
|
/* We will create a reference object for these types below */
|
2007-10-17 14:10:18 -06:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2008-04-10 09:06:39 -06:00
|
|
|
/*
|
|
|
|
* All other types - the node was resolved to an actual
|
|
|
|
* object, we are done.
|
|
|
|
*/
|
2007-10-17 14:10:18 -06:00
|
|
|
goto exit;
|
|
|
|
}
|
|
|
|
}
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
2005-12-16 15:05:00 -07:00
|
|
|
/* Create and init a new internal ACPI object */
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2005-08-04 22:44:28 -06:00
|
|
|
obj_desc = acpi_ut_create_internal_object((acpi_ps_get_opcode_info
|
|
|
|
(op->common.aml_opcode))->
|
|
|
|
object_type);
|
2005-04-16 16:20:36 -06:00
|
|
|
if (!obj_desc) {
|
2005-08-04 22:44:28 -06:00
|
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
2005-08-04 22:44:28 -06:00
|
|
|
status =
|
|
|
|
acpi_ds_init_object_from_op(walk_state, op, op->common.aml_opcode,
|
|
|
|
&obj_desc);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
acpi_ut_remove_reference(obj_desc);
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
2013-10-28 19:30:02 -06:00
|
|
|
exit:
|
2005-04-16 16:20:36 -06:00
|
|
|
*obj_desc_ptr = obj_desc;
|
2008-04-10 09:06:39 -06:00
|
|
|
return_ACPI_STATUS(status);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
2005-04-18 20:49:35 -06:00
|
|
|
/*******************************************************************************
|
2005-04-16 16:20:36 -06:00
|
|
|
*
|
|
|
|
* FUNCTION: acpi_ds_build_internal_buffer_obj
|
|
|
|
*
|
|
|
|
* PARAMETERS: walk_state - Current walk state
|
2012-07-11 19:40:10 -06:00
|
|
|
* op - Parser object to be translated
|
2005-04-16 16:20:36 -06:00
|
|
|
* buffer_length - Length of the buffer
|
|
|
|
* obj_desc_ptr - Where the ACPI internal object is returned
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: Translate a parser Op package object to the equivalent
|
|
|
|
* namespace object
|
|
|
|
*
|
2005-04-18 20:49:35 -06:00
|
|
|
******************************************************************************/
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
acpi_status
|
2005-08-04 22:44:28 -06:00
|
|
|
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)
|
2005-04-16 16:20:36 -06:00
|
|
|
{
|
2005-08-04 22:44:28 -06:00
|
|
|
union acpi_parse_object *arg;
|
|
|
|
union acpi_operand_object *obj_desc;
|
|
|
|
union acpi_parse_object *byte_list;
|
|
|
|
u32 byte_list_length = 0;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
ACPI: ACPICA 20060421
Removed a device initialization optimization introduced in
20051216 where the _STA method was not run unless an _INI
was also present for the same device. This optimization
could cause problems because it could allow _INI methods
to be run within a not-present device subtree (If a
not-present device had no _INI, _STA would not be run,
the not-present status would not be discovered, and the
children of the device would be incorrectly traversed.)
Implemented a new _STA optimization where namespace
subtrees that do not contain _INI are identified and
ignored during device initialization. Selectively running
_STA can significantly improve boot time on large machines
(with assistance from Len Brown.)
Implemented support for the device initialization case
where the returned _STA flags indicate a device not-present
but functioning. In this case, _INI is not run, but the
device children are examined for presence, as per the
ACPI specification.
Implemented an additional change to the IndexField support
in order to conform to MS behavior. The value written to
the Index Register is not simply a byte offset, it is a
byte offset in units of the access width of the parent
Index Field. (Fiodor Suietov)
Defined and deployed a new OSL interface,
acpi_os_validate_address(). This interface is called during
the creation of all AML operation regions, and allows
the host OS to exert control over what addresses it will
allow the AML code to access. Operation Regions whose
addresses are disallowed will cause a runtime exception
when they are actually accessed (will not affect or abort
table loading.)
Defined and deployed a new OSL interface,
acpi_os_validate_interface(). This interface allows the host OS
to match the various "optional" interface/behavior strings
for the _OSI predefined control method as appropriate
(with assistance from Bjorn Helgaas.)
Restructured and corrected various problems in the
exception handling code paths within DsCallControlMethod
and DsTerminateControlMethod in dsmethod (with assistance
from Takayoshi Kochi.)
Modified the Linux source converter to ignore quoted string
literals while converting identifiers from mixed to lower
case. This will correct problems with the disassembler
and other areas where such strings must not be modified.
The ACPI_FUNCTION_* macros no longer require quotes around
the function name. This allows the Linux source converter
to convert the names, now that the converter ignores
quoted strings.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-21 15:15:00 -06:00
|
|
|
ACPI_FUNCTION_TRACE(ds_build_internal_buffer_obj);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2005-12-16 15:05:00 -07:00
|
|
|
/*
|
|
|
|
* If we are evaluating a Named buffer object "Name (xxxx, Buffer)".
|
|
|
|
* The buffer object already exists (from the NS node), otherwise it must
|
|
|
|
* be created.
|
|
|
|
*/
|
2005-04-16 16:20:36 -06:00
|
|
|
obj_desc = *obj_desc_ptr;
|
2005-12-16 15:05:00 -07:00
|
|
|
if (!obj_desc) {
|
2006-10-01 22:00:00 -06:00
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
/* Create a new buffer object */
|
|
|
|
|
2005-08-04 22:44:28 -06:00
|
|
|
obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
|
2005-04-16 16:20:36 -06:00
|
|
|
*obj_desc_ptr = obj_desc;
|
|
|
|
if (!obj_desc) {
|
2005-08-04 22:44:28 -06:00
|
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Second arg is the buffer data (optional) byte_list can be either
|
2012-10-30 20:26:55 -06:00
|
|
|
* individual bytes or a string initializer. In either case, a
|
2005-04-16 16:20:36 -06:00
|
|
|
* byte_list appears in the AML.
|
|
|
|
*/
|
2005-08-04 22:44:28 -06:00
|
|
|
arg = op->common.value.arg; /* skip first arg */
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
byte_list = arg->named.next;
|
|
|
|
if (byte_list) {
|
|
|
|
if (byte_list->common.aml_opcode != AML_INT_BYTELIST_OP) {
|
2006-01-27 14:43:00 -07:00
|
|
|
ACPI_ERROR((AE_INFO,
|
2010-03-05 02:56:40 -07:00
|
|
|
"Expecting bytelist, found AML opcode 0x%X in op %p",
|
2006-01-27 14:43:00 -07:00
|
|
|
byte_list->common.aml_opcode, byte_list));
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2005-08-04 22:44:28 -06:00
|
|
|
acpi_ut_remove_reference(obj_desc);
|
2005-04-16 16:20:36 -06:00
|
|
|
return (AE_TYPE);
|
|
|
|
}
|
|
|
|
|
|
|
|
byte_list_length = (u32) byte_list->common.value.integer;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The buffer length (number of bytes) will be the larger of:
|
|
|
|
* 1) The specified buffer length and
|
|
|
|
* 2) The length of the initializer byte list
|
|
|
|
*/
|
|
|
|
obj_desc->buffer.length = buffer_length;
|
|
|
|
if (byte_list_length > buffer_length) {
|
|
|
|
obj_desc->buffer.length = byte_list_length;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Allocate the buffer */
|
|
|
|
|
|
|
|
if (obj_desc->buffer.length == 0) {
|
|
|
|
obj_desc->buffer.pointer = NULL;
|
2005-08-04 22:44:28 -06:00
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
|
|
|
|
"Buffer defined with zero length in AML, creating\n"));
|
|
|
|
} else {
|
|
|
|
obj_desc->buffer.pointer =
|
2006-10-02 22:00:00 -06:00
|
|
|
ACPI_ALLOCATE_ZEROED(obj_desc->buffer.length);
|
2005-04-16 16:20:36 -06:00
|
|
|
if (!obj_desc->buffer.pointer) {
|
2005-08-04 22:44:28 -06:00
|
|
|
acpi_ut_delete_object_desc(obj_desc);
|
|
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Initialize buffer from the byte_list (if present) */
|
|
|
|
|
|
|
|
if (byte_list) {
|
2015-07-01 00:45:11 -06:00
|
|
|
memcpy(obj_desc->buffer.pointer, byte_list->named.data,
|
|
|
|
byte_list_length);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
obj_desc->buffer.flags |= AOPOBJ_DATA_VALID;
|
2007-02-02 09:48:18 -07:00
|
|
|
op->common.node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_desc);
|
2005-08-04 22:44:28 -06:00
|
|
|
return_ACPI_STATUS(AE_OK);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
2005-04-18 20:49:35 -06:00
|
|
|
/*******************************************************************************
|
2005-04-16 16:20:36 -06:00
|
|
|
*
|
|
|
|
* FUNCTION: acpi_ds_build_internal_package_obj
|
|
|
|
*
|
|
|
|
* PARAMETERS: walk_state - Current walk state
|
2012-07-11 19:40:10 -06:00
|
|
|
* op - Parser object to be translated
|
2007-02-02 09:48:18 -07:00
|
|
|
* element_count - Number of elements in the package - this is
|
|
|
|
* the num_elements argument to Package()
|
2005-04-16 16:20:36 -06:00
|
|
|
* obj_desc_ptr - Where the ACPI internal object is returned
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: Translate a parser Op package object to the equivalent
|
|
|
|
* namespace object
|
|
|
|
*
|
2007-02-02 09:48:18 -07:00
|
|
|
* NOTE: The number of elements in the package will be always be the num_elements
|
|
|
|
* count, regardless of the number of elements in the package list. If
|
|
|
|
* num_elements is smaller, only that many package list elements are used.
|
|
|
|
* if num_elements is larger, the Package object is padded out with
|
|
|
|
* objects of type Uninitialized (as per ACPI spec.)
|
|
|
|
*
|
|
|
|
* Even though the ASL compilers do not allow num_elements to be smaller
|
|
|
|
* than the Package list length (for the fixed length package opcode), some
|
|
|
|
* BIOS code modifies the AML on the fly to adjust the num_elements, and
|
|
|
|
* this code compensates for that. This also provides compatibility with
|
|
|
|
* other AML interpreters.
|
|
|
|
*
|
2005-04-18 20:49:35 -06:00
|
|
|
******************************************************************************/
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
acpi_status
|
2005-08-04 22:44:28 -06:00
|
|
|
acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
|
|
|
|
union acpi_parse_object *op,
|
2007-02-02 09:48:18 -07:00
|
|
|
u32 element_count,
|
2005-08-04 22:44:28 -06:00
|
|
|
union acpi_operand_object **obj_desc_ptr)
|
2005-04-16 16:20:36 -06:00
|
|
|
{
|
2005-08-04 22:44:28 -06:00
|
|
|
union acpi_parse_object *arg;
|
|
|
|
union acpi_parse_object *parent;
|
|
|
|
union acpi_operand_object *obj_desc = NULL;
|
|
|
|
acpi_status status = AE_OK;
|
2012-12-19 18:07:26 -07:00
|
|
|
u32 i;
|
2008-04-10 09:06:38 -06:00
|
|
|
u16 index;
|
|
|
|
u16 reference_count;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
ACPI: ACPICA 20060421
Removed a device initialization optimization introduced in
20051216 where the _STA method was not run unless an _INI
was also present for the same device. This optimization
could cause problems because it could allow _INI methods
to be run within a not-present device subtree (If a
not-present device had no _INI, _STA would not be run,
the not-present status would not be discovered, and the
children of the device would be incorrectly traversed.)
Implemented a new _STA optimization where namespace
subtrees that do not contain _INI are identified and
ignored during device initialization. Selectively running
_STA can significantly improve boot time on large machines
(with assistance from Len Brown.)
Implemented support for the device initialization case
where the returned _STA flags indicate a device not-present
but functioning. In this case, _INI is not run, but the
device children are examined for presence, as per the
ACPI specification.
Implemented an additional change to the IndexField support
in order to conform to MS behavior. The value written to
the Index Register is not simply a byte offset, it is a
byte offset in units of the access width of the parent
Index Field. (Fiodor Suietov)
Defined and deployed a new OSL interface,
acpi_os_validate_address(). This interface is called during
the creation of all AML operation regions, and allows
the host OS to exert control over what addresses it will
allow the AML code to access. Operation Regions whose
addresses are disallowed will cause a runtime exception
when they are actually accessed (will not affect or abort
table loading.)
Defined and deployed a new OSL interface,
acpi_os_validate_interface(). This interface allows the host OS
to match the various "optional" interface/behavior strings
for the _OSI predefined control method as appropriate
(with assistance from Bjorn Helgaas.)
Restructured and corrected various problems in the
exception handling code paths within DsCallControlMethod
and DsTerminateControlMethod in dsmethod (with assistance
from Takayoshi Kochi.)
Modified the Linux source converter to ignore quoted string
literals while converting identifiers from mixed to lower
case. This will correct problems with the disassembler
and other areas where such strings must not be modified.
The ACPI_FUNCTION_* macros no longer require quotes around
the function name. This allows the Linux source converter
to convert the names, now that the converter ignores
quoted strings.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-21 15:15:00 -06:00
|
|
|
ACPI_FUNCTION_TRACE(ds_build_internal_package_obj);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
/* Find the parent of a possibly nested package */
|
|
|
|
|
|
|
|
parent = op->common.parent;
|
2005-08-04 22:44:28 -06:00
|
|
|
while ((parent->common.aml_opcode == AML_PACKAGE_OP) ||
|
|
|
|
(parent->common.aml_opcode == AML_VAR_PACKAGE_OP)) {
|
2005-04-16 16:20:36 -06:00
|
|
|
parent = parent->common.parent;
|
|
|
|
}
|
|
|
|
|
2005-12-16 15:05:00 -07:00
|
|
|
/*
|
|
|
|
* If we are evaluating a Named package object "Name (xxxx, Package)",
|
|
|
|
* the package object already exists, otherwise it must be created.
|
|
|
|
*/
|
2005-04-16 16:20:36 -06:00
|
|
|
obj_desc = *obj_desc_ptr;
|
2005-12-16 15:05:00 -07:00
|
|
|
if (!obj_desc) {
|
2005-08-04 22:44:28 -06:00
|
|
|
obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE);
|
2005-04-16 16:20:36 -06:00
|
|
|
*obj_desc_ptr = obj_desc;
|
|
|
|
if (!obj_desc) {
|
2005-08-04 22:44:28 -06:00
|
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
obj_desc->package.node = parent->common.node;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2007-02-02 09:48:18 -07:00
|
|
|
* Allocate the element array (array of pointers to the individual
|
|
|
|
* objects) based on the num_elements parameter. Add an extra pointer slot
|
|
|
|
* so that the list is always null terminated.
|
2005-04-16 16:20:36 -06:00
|
|
|
*/
|
2006-10-02 22:00:00 -06:00
|
|
|
obj_desc->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size)
|
2007-02-02 09:48:18 -07:00
|
|
|
element_count +
|
2006-10-02 22:00:00 -06:00
|
|
|
1) * sizeof(void *));
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
if (!obj_desc->package.elements) {
|
2005-08-04 22:44:28 -06:00
|
|
|
acpi_ut_delete_object_desc(obj_desc);
|
|
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
2007-02-02 09:48:18 -07:00
|
|
|
obj_desc->package.count = element_count;
|
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
/*
|
2007-02-02 09:48:18 -07:00
|
|
|
* Initialize the elements of the package, up to the num_elements count.
|
|
|
|
* Package is automatically padded with uninitialized (NULL) elements
|
|
|
|
* if num_elements is greater than the package list length. Likewise,
|
|
|
|
* Package is truncated if num_elements is less than the list length.
|
2005-04-16 16:20:36 -06:00
|
|
|
*/
|
|
|
|
arg = op->common.value.arg;
|
|
|
|
arg = arg->common.next;
|
2007-02-02 09:48:18 -07:00
|
|
|
for (i = 0; arg && (i < element_count); i++) {
|
2005-04-16 16:20:36 -06:00
|
|
|
if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) {
|
2007-10-17 14:10:18 -06:00
|
|
|
if (arg->common.node->type == ACPI_TYPE_METHOD) {
|
|
|
|
/*
|
|
|
|
* A method reference "looks" to the parser to be a method
|
|
|
|
* invocation, so we special case it here
|
|
|
|
*/
|
|
|
|
arg->common.aml_opcode = AML_INT_NAMEPATH_OP;
|
|
|
|
status =
|
|
|
|
acpi_ds_build_internal_object(walk_state,
|
|
|
|
arg,
|
|
|
|
&obj_desc->
|
|
|
|
package.
|
|
|
|
elements[i]);
|
|
|
|
} else {
|
|
|
|
/* This package element is already built, just get it */
|
|
|
|
|
|
|
|
obj_desc->package.elements[i] =
|
|
|
|
ACPI_CAST_PTR(union acpi_operand_object,
|
|
|
|
arg->common.node);
|
|
|
|
}
|
2005-08-04 22:44:28 -06:00
|
|
|
} else {
|
|
|
|
status = acpi_ds_build_internal_object(walk_state, arg,
|
|
|
|
&obj_desc->
|
|
|
|
package.
|
|
|
|
elements[i]);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
2008-04-10 09:06:38 -06:00
|
|
|
|
|
|
|
if (*obj_desc_ptr) {
|
|
|
|
|
|
|
|
/* Existing package, get existing reference count */
|
|
|
|
|
|
|
|
reference_count =
|
|
|
|
(*obj_desc_ptr)->common.reference_count;
|
|
|
|
if (reference_count > 1) {
|
|
|
|
|
|
|
|
/* Make new element ref count match original ref count */
|
|
|
|
|
|
|
|
for (index = 0; index < (reference_count - 1);
|
|
|
|
index++) {
|
|
|
|
acpi_ut_add_reference((obj_desc->
|
|
|
|
package.
|
|
|
|
elements[i]));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
arg = arg->common.next;
|
|
|
|
}
|
|
|
|
|
2008-04-10 09:06:43 -06:00
|
|
|
/* Check for match between num_elements and actual length of package_list */
|
|
|
|
|
|
|
|
if (arg) {
|
|
|
|
/*
|
|
|
|
* num_elements was exhausted, but there are remaining elements in the
|
2009-09-02 20:03:37 -06:00
|
|
|
* package_list. Truncate the package to num_elements.
|
2008-04-10 09:06:43 -06:00
|
|
|
*
|
|
|
|
* Note: technically, this is an error, from ACPI spec: "It is an error
|
|
|
|
* for NumElements to be less than the number of elements in the
|
2009-11-11 18:31:50 -07:00
|
|
|
* PackageList". However, we just print a message and
|
2009-09-02 20:03:37 -06:00
|
|
|
* no exception is returned. This provides Windows compatibility. Some
|
|
|
|
* BIOSs will alter the num_elements on the fly, creating this type
|
|
|
|
* of ill-formed package object.
|
2008-04-10 09:06:43 -06:00
|
|
|
*/
|
|
|
|
while (arg) {
|
2009-09-02 20:03:37 -06:00
|
|
|
/*
|
|
|
|
* We must delete any package elements that were created earlier
|
|
|
|
* and are not going to be used because of the package truncation.
|
|
|
|
*/
|
|
|
|
if (arg->common.node) {
|
|
|
|
acpi_ut_remove_reference(ACPI_CAST_PTR
|
|
|
|
(union
|
|
|
|
acpi_operand_object,
|
|
|
|
arg->common.node));
|
|
|
|
arg->common.node = NULL;
|
|
|
|
}
|
2008-04-10 09:06:43 -06:00
|
|
|
|
|
|
|
/* Find out how many elements there really are */
|
|
|
|
|
|
|
|
i++;
|
|
|
|
arg = arg->common.next;
|
|
|
|
}
|
|
|
|
|
2009-11-11 18:31:50 -07:00
|
|
|
ACPI_INFO((AE_INFO,
|
2013-01-24 22:41:16 -07:00
|
|
|
"Actual Package length (%u) is larger than NumElements field (%u), truncated",
|
2009-11-11 18:31:50 -07:00
|
|
|
i, element_count));
|
2008-04-10 09:06:43 -06:00
|
|
|
} else if (i < element_count) {
|
|
|
|
/*
|
|
|
|
* Arg list (elements) was exhausted, but we did not reach num_elements count.
|
|
|
|
* Note: this is not an error, the package is padded out with NULLs.
|
|
|
|
*/
|
2007-02-02 09:48:18 -07:00
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
|
2010-03-05 02:56:40 -07:00
|
|
|
"Package List length (%u) smaller than NumElements count (%u), padded with null elements\n",
|
2008-04-10 09:06:43 -06:00
|
|
|
i, element_count));
|
2007-02-02 09:48:18 -07:00
|
|
|
}
|
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
obj_desc->package.flags |= AOPOBJ_DATA_VALID;
|
2007-02-02 09:48:18 -07:00
|
|
|
op->common.node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_desc);
|
2005-08-04 22:44:28 -06:00
|
|
|
return_ACPI_STATUS(status);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
2005-04-18 20:49:35 -06:00
|
|
|
/*******************************************************************************
|
2005-04-16 16:20:36 -06:00
|
|
|
*
|
|
|
|
* FUNCTION: acpi_ds_create_node
|
|
|
|
*
|
|
|
|
* PARAMETERS: walk_state - Current walk state
|
2012-07-11 19:40:10 -06:00
|
|
|
* node - NS Node to be initialized
|
|
|
|
* op - Parser object to be translated
|
2005-04-16 16:20:36 -06:00
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: Create the object to be associated with a namespace node
|
|
|
|
*
|
2005-04-18 20:49:35 -06:00
|
|
|
******************************************************************************/
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
acpi_status
|
2005-08-04 22:44:28 -06:00
|
|
|
acpi_ds_create_node(struct acpi_walk_state *walk_state,
|
|
|
|
struct acpi_namespace_node *node,
|
|
|
|
union acpi_parse_object *op)
|
2005-04-16 16:20:36 -06:00
|
|
|
{
|
2005-08-04 22:44:28 -06:00
|
|
|
acpi_status status;
|
|
|
|
union acpi_operand_object *obj_desc;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
ACPI: ACPICA 20060421
Removed a device initialization optimization introduced in
20051216 where the _STA method was not run unless an _INI
was also present for the same device. This optimization
could cause problems because it could allow _INI methods
to be run within a not-present device subtree (If a
not-present device had no _INI, _STA would not be run,
the not-present status would not be discovered, and the
children of the device would be incorrectly traversed.)
Implemented a new _STA optimization where namespace
subtrees that do not contain _INI are identified and
ignored during device initialization. Selectively running
_STA can significantly improve boot time on large machines
(with assistance from Len Brown.)
Implemented support for the device initialization case
where the returned _STA flags indicate a device not-present
but functioning. In this case, _INI is not run, but the
device children are examined for presence, as per the
ACPI specification.
Implemented an additional change to the IndexField support
in order to conform to MS behavior. The value written to
the Index Register is not simply a byte offset, it is a
byte offset in units of the access width of the parent
Index Field. (Fiodor Suietov)
Defined and deployed a new OSL interface,
acpi_os_validate_address(). This interface is called during
the creation of all AML operation regions, and allows
the host OS to exert control over what addresses it will
allow the AML code to access. Operation Regions whose
addresses are disallowed will cause a runtime exception
when they are actually accessed (will not affect or abort
table loading.)
Defined and deployed a new OSL interface,
acpi_os_validate_interface(). This interface allows the host OS
to match the various "optional" interface/behavior strings
for the _OSI predefined control method as appropriate
(with assistance from Bjorn Helgaas.)
Restructured and corrected various problems in the
exception handling code paths within DsCallControlMethod
and DsTerminateControlMethod in dsmethod (with assistance
from Takayoshi Kochi.)
Modified the Linux source converter to ignore quoted string
literals while converting identifiers from mixed to lower
case. This will correct problems with the disassembler
and other areas where such strings must not be modified.
The ACPI_FUNCTION_* macros no longer require quotes around
the function name. This allows the Linux source converter
to convert the names, now that the converter ignores
quoted strings.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-21 15:15:00 -06:00
|
|
|
ACPI_FUNCTION_TRACE_PTR(ds_create_node, op);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Because of the execution pass through the non-control-method
|
2012-10-30 20:26:55 -06:00
|
|
|
* parts of the table, we can arrive here twice. Only init
|
2005-04-16 16:20:36 -06:00
|
|
|
* the named object node the first time through
|
|
|
|
*/
|
2005-08-04 22:44:28 -06:00
|
|
|
if (acpi_ns_get_attached_object(node)) {
|
|
|
|
return_ACPI_STATUS(AE_OK);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
if (!op->common.value.arg) {
|
2006-10-01 22:00:00 -06:00
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
/* No arguments, there is nothing to do */
|
|
|
|
|
2005-08-04 22:44:28 -06:00
|
|
|
return_ACPI_STATUS(AE_OK);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Build an internal object for the argument(s) */
|
|
|
|
|
2005-08-04 22:44:28 -06:00
|
|
|
status = acpi_ds_build_internal_object(walk_state, op->common.value.arg,
|
|
|
|
&obj_desc);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Re-type the object according to its argument */
|
|
|
|
|
2009-02-17 23:44:03 -07:00
|
|
|
node->type = obj_desc->common.type;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
/* Attach obj to node */
|
|
|
|
|
2005-08-04 22:44:28 -06:00
|
|
|
status = acpi_ns_attach_object(node, obj_desc, node->type);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
/* Remove local reference to the object */
|
|
|
|
|
2005-08-04 22:44:28 -06:00
|
|
|
acpi_ut_remove_reference(obj_desc);
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
2005-08-04 22:44:28 -06:00
|
|
|
#endif /* ACPI_NO_METHOD_EXECUTION */
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2005-04-18 20:49:35 -06:00
|
|
|
/*******************************************************************************
|
2005-04-16 16:20:36 -06:00
|
|
|
*
|
|
|
|
* FUNCTION: acpi_ds_init_object_from_op
|
|
|
|
*
|
|
|
|
* PARAMETERS: walk_state - Current walk state
|
2012-07-11 19:40:10 -06:00
|
|
|
* op - Parser op used to init the internal object
|
|
|
|
* opcode - AML opcode associated with the object
|
2005-04-16 16:20:36 -06:00
|
|
|
* ret_obj_desc - Namespace object to be initialized
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: Initialize a namespace object from a parser Op and its
|
2012-10-30 20:26:55 -06:00
|
|
|
* associated arguments. The namespace object is a more compact
|
2005-04-16 16:20:36 -06:00
|
|
|
* representation of the Op and its arguments.
|
|
|
|
*
|
2005-04-18 20:49:35 -06:00
|
|
|
******************************************************************************/
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
acpi_status
|
2005-08-04 22:44:28 -06:00
|
|
|
acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
|
|
|
|
union acpi_parse_object *op,
|
|
|
|
u16 opcode,
|
|
|
|
union acpi_operand_object **ret_obj_desc)
|
2005-04-16 16:20:36 -06:00
|
|
|
{
|
2005-08-04 22:44:28 -06:00
|
|
|
const struct acpi_opcode_info *op_info;
|
|
|
|
union acpi_operand_object *obj_desc;
|
|
|
|
acpi_status status = AE_OK;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
ACPI: ACPICA 20060421
Removed a device initialization optimization introduced in
20051216 where the _STA method was not run unless an _INI
was also present for the same device. This optimization
could cause problems because it could allow _INI methods
to be run within a not-present device subtree (If a
not-present device had no _INI, _STA would not be run,
the not-present status would not be discovered, and the
children of the device would be incorrectly traversed.)
Implemented a new _STA optimization where namespace
subtrees that do not contain _INI are identified and
ignored during device initialization. Selectively running
_STA can significantly improve boot time on large machines
(with assistance from Len Brown.)
Implemented support for the device initialization case
where the returned _STA flags indicate a device not-present
but functioning. In this case, _INI is not run, but the
device children are examined for presence, as per the
ACPI specification.
Implemented an additional change to the IndexField support
in order to conform to MS behavior. The value written to
the Index Register is not simply a byte offset, it is a
byte offset in units of the access width of the parent
Index Field. (Fiodor Suietov)
Defined and deployed a new OSL interface,
acpi_os_validate_address(). This interface is called during
the creation of all AML operation regions, and allows
the host OS to exert control over what addresses it will
allow the AML code to access. Operation Regions whose
addresses are disallowed will cause a runtime exception
when they are actually accessed (will not affect or abort
table loading.)
Defined and deployed a new OSL interface,
acpi_os_validate_interface(). This interface allows the host OS
to match the various "optional" interface/behavior strings
for the _OSI predefined control method as appropriate
(with assistance from Bjorn Helgaas.)
Restructured and corrected various problems in the
exception handling code paths within DsCallControlMethod
and DsTerminateControlMethod in dsmethod (with assistance
from Takayoshi Kochi.)
Modified the Linux source converter to ignore quoted string
literals while converting identifiers from mixed to lower
case. This will correct problems with the disassembler
and other areas where such strings must not be modified.
The ACPI_FUNCTION_* macros no longer require quotes around
the function name. This allows the Linux source converter
to convert the names, now that the converter ignores
quoted strings.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-21 15:15:00 -06:00
|
|
|
ACPI_FUNCTION_TRACE(ds_init_object_from_op);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
obj_desc = *ret_obj_desc;
|
2005-08-04 22:44:28 -06:00
|
|
|
op_info = acpi_ps_get_opcode_info(opcode);
|
2005-04-16 16:20:36 -06:00
|
|
|
if (op_info->class == AML_CLASS_UNKNOWN) {
|
2006-10-01 22:00:00 -06:00
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
/* Unknown opcode */
|
|
|
|
|
2005-08-04 22:44:28 -06:00
|
|
|
return_ACPI_STATUS(AE_TYPE);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Perform per-object initialization */
|
|
|
|
|
2009-02-17 23:44:03 -07:00
|
|
|
switch (obj_desc->common.type) {
|
2005-04-16 16:20:36 -06:00
|
|
|
case ACPI_TYPE_BUFFER:
|
|
|
|
/*
|
|
|
|
* Defer evaluation of Buffer term_arg operand
|
|
|
|
*/
|
2007-02-02 09:48:18 -07:00
|
|
|
obj_desc->buffer.node =
|
|
|
|
ACPI_CAST_PTR(struct acpi_namespace_node,
|
|
|
|
walk_state->operands[0]);
|
2005-04-16 16:20:36 -06:00
|
|
|
obj_desc->buffer.aml_start = op->named.data;
|
|
|
|
obj_desc->buffer.aml_length = op->named.length;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ACPI_TYPE_PACKAGE:
|
|
|
|
/*
|
|
|
|
* Defer evaluation of Package term_arg operand
|
|
|
|
*/
|
2007-02-02 09:48:18 -07:00
|
|
|
obj_desc->package.node =
|
|
|
|
ACPI_CAST_PTR(struct acpi_namespace_node,
|
|
|
|
walk_state->operands[0]);
|
2005-04-16 16:20:36 -06:00
|
|
|
obj_desc->package.aml_start = op->named.data;
|
|
|
|
obj_desc->package.aml_length = op->named.length;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ACPI_TYPE_INTEGER:
|
|
|
|
|
|
|
|
switch (op_info->type) {
|
|
|
|
case AML_TYPE_CONSTANT:
|
|
|
|
/*
|
|
|
|
* Resolve AML Constants here - AND ONLY HERE!
|
|
|
|
* All constants are integers.
|
2005-04-18 20:49:35 -06:00
|
|
|
* We mark the integer with a flag that indicates that it started
|
|
|
|
* life as a constant -- so that stores to constants will perform
|
|
|
|
* as expected (noop). zero_op is used as a placeholder for optional
|
|
|
|
* target operands.
|
2005-04-16 16:20:36 -06:00
|
|
|
*/
|
|
|
|
obj_desc->common.flags = AOPOBJ_AML_CONSTANT;
|
|
|
|
|
|
|
|
switch (opcode) {
|
|
|
|
case AML_ZERO_OP:
|
|
|
|
|
|
|
|
obj_desc->integer.value = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case AML_ONE_OP:
|
|
|
|
|
|
|
|
obj_desc->integer.value = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case AML_ONES_OP:
|
|
|
|
|
2010-01-20 19:06:32 -07:00
|
|
|
obj_desc->integer.value = ACPI_UINT64_MAX;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
/* Truncate value if we are executing from a 32-bit ACPI table */
|
|
|
|
|
|
|
|
#ifndef ACPI_NO_METHOD_EXECUTION
|
2012-12-30 17:07:18 -07:00
|
|
|
(void)acpi_ex_truncate_for32bit_table(obj_desc);
|
2005-04-16 16:20:36 -06:00
|
|
|
#endif
|
|
|
|
break;
|
|
|
|
|
|
|
|
case AML_REVISION_OP:
|
|
|
|
|
|
|
|
obj_desc->integer.value = ACPI_CA_VERSION;
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
2006-01-27 14:43:00 -07:00
|
|
|
ACPI_ERROR((AE_INFO,
|
2010-03-05 02:56:40 -07:00
|
|
|
"Unknown constant opcode 0x%X",
|
2006-01-27 14:43:00 -07:00
|
|
|
opcode));
|
2005-04-16 16:20:36 -06:00
|
|
|
status = AE_AML_OPERAND_TYPE;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case AML_TYPE_LITERAL:
|
|
|
|
|
|
|
|
obj_desc->integer.value = op->common.value.integer;
|
2012-12-30 17:07:18 -07:00
|
|
|
|
2005-05-12 22:00:00 -06:00
|
|
|
#ifndef ACPI_NO_METHOD_EXECUTION
|
2012-12-30 17:07:18 -07:00
|
|
|
if (acpi_ex_truncate_for32bit_table(obj_desc)) {
|
|
|
|
|
|
|
|
/* Warn if we found a 64-bit constant in a 32-bit table */
|
|
|
|
|
|
|
|
ACPI_WARNING((AE_INFO,
|
|
|
|
"Truncated 64-bit constant found in 32-bit table: %8.8X%8.8X => %8.8X",
|
|
|
|
ACPI_FORMAT_UINT64(op->common.
|
|
|
|
value.integer),
|
|
|
|
(u32)obj_desc->integer.value));
|
|
|
|
}
|
2005-05-12 22:00:00 -06:00
|
|
|
#endif
|
2005-04-16 16:20:36 -06:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2013-06-07 18:58:14 -06:00
|
|
|
|
2010-03-05 02:56:40 -07:00
|
|
|
ACPI_ERROR((AE_INFO, "Unknown Integer type 0x%X",
|
2006-01-27 14:43:00 -07:00
|
|
|
op_info->type));
|
2005-04-16 16:20:36 -06:00
|
|
|
status = AE_AML_OPERAND_TYPE;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ACPI_TYPE_STRING:
|
|
|
|
|
|
|
|
obj_desc->string.pointer = op->common.value.string;
|
2015-07-01 00:45:11 -06:00
|
|
|
obj_desc->string.length = (u32)strlen(op->common.value.string);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
/*
|
|
|
|
* The string is contained in the ACPI table, don't ever try
|
|
|
|
* to delete it
|
|
|
|
*/
|
|
|
|
obj_desc->common.flags |= AOPOBJ_STATIC_POINTER;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ACPI_TYPE_METHOD:
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ACPI_TYPE_LOCAL_REFERENCE:
|
|
|
|
|
|
|
|
switch (op_info->type) {
|
|
|
|
case AML_TYPE_LOCAL_VARIABLE:
|
|
|
|
|
2008-09-26 21:08:41 -06:00
|
|
|
/* Local ID (0-7) is (AML opcode - base AML_LOCAL_OP) */
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2009-04-21 23:13:48 -06:00
|
|
|
obj_desc->reference.value =
|
|
|
|
((u32)opcode) - AML_LOCAL_OP;
|
2008-09-26 21:08:41 -06:00
|
|
|
obj_desc->reference.class = ACPI_REFCLASS_LOCAL;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
#ifndef ACPI_NO_METHOD_EXECUTION
|
2008-09-26 21:08:41 -06:00
|
|
|
status =
|
|
|
|
acpi_ds_method_data_get_node(ACPI_REFCLASS_LOCAL,
|
|
|
|
obj_desc->reference.
|
|
|
|
value, walk_state,
|
|
|
|
ACPI_CAST_INDIRECT_PTR
|
|
|
|
(struct
|
|
|
|
acpi_namespace_node,
|
|
|
|
&obj_desc->reference.
|
|
|
|
object));
|
2005-04-16 16:20:36 -06:00
|
|
|
#endif
|
|
|
|
break;
|
|
|
|
|
|
|
|
case AML_TYPE_METHOD_ARGUMENT:
|
|
|
|
|
2008-09-26 21:08:41 -06:00
|
|
|
/* Arg ID (0-6) is (AML opcode - base AML_ARG_OP) */
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2009-04-21 23:13:48 -06:00
|
|
|
obj_desc->reference.value = ((u32)opcode) - AML_ARG_OP;
|
2008-09-26 21:08:41 -06:00
|
|
|
obj_desc->reference.class = ACPI_REFCLASS_ARG;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
#ifndef ACPI_NO_METHOD_EXECUTION
|
2008-09-26 21:08:41 -06:00
|
|
|
status = acpi_ds_method_data_get_node(ACPI_REFCLASS_ARG,
|
2005-08-04 22:44:28 -06:00
|
|
|
obj_desc->
|
2008-09-26 21:08:41 -06:00
|
|
|
reference.value,
|
2005-08-04 22:44:28 -06:00
|
|
|
walk_state,
|
2008-09-26 20:40:39 -06:00
|
|
|
ACPI_CAST_INDIRECT_PTR
|
2005-08-04 22:44:28 -06:00
|
|
|
(struct
|
2008-09-26 20:40:39 -06:00
|
|
|
acpi_namespace_node,
|
|
|
|
&obj_desc->
|
|
|
|
reference.
|
|
|
|
object));
|
2005-04-16 16:20:36 -06:00
|
|
|
#endif
|
|
|
|
break;
|
|
|
|
|
2008-09-26 21:08:41 -06:00
|
|
|
default: /* Object name or Debug object */
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2008-09-26 21:08:41 -06:00
|
|
|
switch (op->common.aml_opcode) {
|
|
|
|
case AML_INT_NAMEPATH_OP:
|
2006-10-01 22:00:00 -06:00
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
/* Node was saved in Op */
|
|
|
|
|
|
|
|
obj_desc->reference.node = op->common.node;
|
2008-04-10 09:06:39 -06:00
|
|
|
obj_desc->reference.object =
|
|
|
|
op->common.node->object;
|
2008-09-26 21:08:41 -06:00
|
|
|
obj_desc->reference.class = ACPI_REFCLASS_NAME;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case AML_DEBUG_OP:
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2008-09-26 21:08:41 -06:00
|
|
|
obj_desc->reference.class = ACPI_REFCLASS_DEBUG;
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
|
|
|
ACPI_ERROR((AE_INFO,
|
2010-03-05 02:56:40 -07:00
|
|
|
"Unimplemented reference type for AML opcode: 0x%4.4X",
|
2008-09-26 21:08:41 -06:00
|
|
|
opcode));
|
|
|
|
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
|
|
|
|
}
|
2005-04-16 16:20:36 -06:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
2010-03-05 02:56:40 -07:00
|
|
|
ACPI_ERROR((AE_INFO, "Unimplemented data type: 0x%X",
|
2009-02-17 23:44:03 -07:00
|
|
|
obj_desc->common.type));
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
status = AE_AML_OPERAND_TYPE;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2005-08-04 22:44:28 -06:00
|
|
|
return_ACPI_STATUS(status);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|