2005-04-17 00:20:36 +02:00
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/******************************************************************************
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*
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* Module Name: dsobject - Dispatcher object management routines
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*
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*****************************************************************************/
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/*
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2006-01-13 22:22:00 +01:00
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* Copyright (C) 2000 - 2006, R. Byron Moore
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2005-04-17 00:20:36 +02:00
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#include <acpi/acpi.h>
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#include <acpi/acparser.h>
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#include <acpi/amlcode.h>
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#include <acpi/acdispat.h>
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#include <acpi/acnamesp.h>
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#include <acpi/acinterp.h>
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#define _COMPONENT ACPI_DISPATCHER
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2005-08-05 06:44:28 +02:00
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ACPI_MODULE_NAME("dsobject")
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2005-04-17 00:20:36 +02:00
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2005-12-16 23:05:00 +01:00
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/* Local prototypes */
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2005-04-19 04:49:35 +02:00
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static acpi_status
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2005-08-05 06:44:28 +02:00
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acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
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union acpi_parse_object *op,
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union acpi_operand_object **obj_desc_ptr);
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2005-04-17 00:20:36 +02:00
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#ifndef ACPI_NO_METHOD_EXECUTION
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2005-04-19 04:49:35 +02:00
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/*******************************************************************************
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2005-04-17 00:20:36 +02:00
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*
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* FUNCTION: acpi_ds_build_internal_object
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*
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* PARAMETERS: walk_state - Current walk state
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* Op - Parser object to be translated
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* obj_desc_ptr - Where the ACPI internal object is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Translate a parser Op object to the equivalent namespace object
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* Simple objects are any objects other than a package object!
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*
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2005-04-19 04:49:35 +02:00
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******************************************************************************/
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2005-04-17 00:20:36 +02:00
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2005-04-19 04:49:35 +02:00
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static acpi_status
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2005-08-05 06:44:28 +02:00
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acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
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union acpi_parse_object *op,
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union acpi_operand_object **obj_desc_ptr)
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2005-04-17 00:20:36 +02:00
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{
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2005-08-05 06:44:28 +02:00
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union acpi_operand_object *obj_desc;
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acpi_status status;
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2005-04-17 00:20:36 +02:00
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|
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 23:15:00 +02:00
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ACPI_FUNCTION_TRACE(ds_build_internal_object);
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2005-04-17 00:20:36 +02:00
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*obj_desc_ptr = NULL;
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if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) {
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/*
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2005-12-16 23:05:00 +01:00
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* This is a named object reference. If this name was
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2005-04-17 00:20:36 +02:00
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* previously looked up in the namespace, it was stored in this op.
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* Otherwise, go ahead and look it up now
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*/
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if (!op->common.node) {
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2005-08-05 06:44:28 +02:00
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status = acpi_ns_lookup(walk_state->scope_info,
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op->common.value.string,
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ACPI_TYPE_ANY,
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ACPI_IMODE_EXECUTE,
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ACPI_NS_SEARCH_PARENT |
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ACPI_NS_DONT_OPEN_SCOPE, NULL,
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2005-12-16 23:05:00 +01:00
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ACPI_CAST_INDIRECT_PTR(struct
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acpi_namespace_node,
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&(op->
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common.
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node)));
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2005-08-05 06:44:28 +02:00
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if (ACPI_FAILURE(status)) {
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2006-10-02 06:00:00 +02:00
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2005-12-16 23:05:00 +01:00
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/* Check if we are resolving a named reference within a package */
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if ((status == AE_NOT_FOUND)
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&& (acpi_gbl_enable_interpreter_slack)
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&&
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((op->common.parent->common.aml_opcode ==
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AML_PACKAGE_OP)
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|| (op->common.parent->common.aml_opcode ==
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AML_VAR_PACKAGE_OP))) {
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/*
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* We didn't find the target and we are populating elements
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* of a package - ignore if slack enabled. Some ASL code
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* contains dangling invalid references in packages and
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* expects that no exception will be issued. Leave the
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* element as a null element. It cannot be used, but it
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* can be overwritten by subsequent ASL code - this is
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* typically the case.
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*/
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ACPI_DEBUG_PRINT((ACPI_DB_INFO,
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"Ignoring unresolved reference in package [%4.4s]\n",
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walk_state->
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scope_info->scope.
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node->name.ascii));
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return_ACPI_STATUS(AE_OK);
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} else {
|
2006-01-27 22:43:00 +01:00
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ACPI_ERROR_NAMESPACE(op->common.value.
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string, status);
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2005-12-16 23:05:00 +01:00
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}
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2005-08-05 06:44:28 +02:00
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return_ACPI_STATUS(status);
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2005-04-17 00:20:36 +02:00
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}
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}
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}
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2005-12-16 23:05:00 +01:00
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/* Create and init a new internal ACPI object */
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2005-04-17 00:20:36 +02:00
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2005-08-05 06:44:28 +02:00
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obj_desc = acpi_ut_create_internal_object((acpi_ps_get_opcode_info
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(op->common.aml_opcode))->
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object_type);
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2005-04-17 00:20:36 +02:00
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if (!obj_desc) {
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2005-08-05 06:44:28 +02:00
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return_ACPI_STATUS(AE_NO_MEMORY);
|
2005-04-17 00:20:36 +02:00
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}
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2005-08-05 06:44:28 +02:00
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status =
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acpi_ds_init_object_from_op(walk_state, op, op->common.aml_opcode,
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&obj_desc);
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if (ACPI_FAILURE(status)) {
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acpi_ut_remove_reference(obj_desc);
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return_ACPI_STATUS(status);
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2005-04-17 00:20:36 +02:00
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}
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*obj_desc_ptr = obj_desc;
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2005-08-05 06:44:28 +02:00
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return_ACPI_STATUS(AE_OK);
|
2005-04-17 00:20:36 +02:00
|
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|
}
|
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|
|
2005-04-19 04:49:35 +02:00
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|
/*******************************************************************************
|
2005-04-17 00:20:36 +02:00
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*
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* FUNCTION: acpi_ds_build_internal_buffer_obj
|
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|
*
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|
|
* PARAMETERS: walk_state - Current walk state
|
|
|
|
* Op - Parser object to be translated
|
|
|
|
* 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
|
|
|
|
*
|
2005-04-19 04:49:35 +02:00
|
|
|
******************************************************************************/
|
2005-04-17 00:20:36 +02:00
|
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|
acpi_status
|
2005-08-05 06:44:28 +02:00
|
|
|
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)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
2005-08-05 06:44:28 +02:00
|
|
|
union acpi_parse_object *arg;
|
|
|
|
union acpi_operand_object *obj_desc;
|
|
|
|
union acpi_parse_object *byte_list;
|
|
|
|
u32 byte_list_length = 0;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
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 23:15:00 +02:00
|
|
|
ACPI_FUNCTION_TRACE(ds_build_internal_buffer_obj);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2005-12-16 23:05:00 +01:00
|
|
|
/*
|
|
|
|
* 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.
|
|
|
|
*/
|
2005-04-17 00:20:36 +02:00
|
|
|
obj_desc = *obj_desc_ptr;
|
2005-12-16 23:05:00 +01:00
|
|
|
if (!obj_desc) {
|
2006-10-02 06:00:00 +02:00
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
/* Create a new buffer object */
|
|
|
|
|
2005-08-05 06:44:28 +02:00
|
|
|
obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
|
2005-04-17 00:20:36 +02:00
|
|
|
*obj_desc_ptr = obj_desc;
|
|
|
|
if (!obj_desc) {
|
2005-08-05 06:44:28 +02:00
|
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Second arg is the buffer data (optional) byte_list can be either
|
|
|
|
* individual bytes or a string initializer. In either case, a
|
|
|
|
* byte_list appears in the AML.
|
|
|
|
*/
|
2005-08-05 06:44:28 +02:00
|
|
|
arg = op->common.value.arg; /* skip first arg */
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
byte_list = arg->named.next;
|
|
|
|
if (byte_list) {
|
|
|
|
if (byte_list->common.aml_opcode != AML_INT_BYTELIST_OP) {
|
2006-01-27 22:43:00 +01:00
|
|
|
ACPI_ERROR((AE_INFO,
|
|
|
|
"Expecting bytelist, got AML opcode %X in op %p",
|
|
|
|
byte_list->common.aml_opcode, byte_list));
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2005-08-05 06:44:28 +02:00
|
|
|
acpi_ut_remove_reference(obj_desc);
|
2005-04-17 00:20:36 +02:00
|
|
|
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;
|
2005-08-05 06:44:28 +02:00
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
|
|
|
|
"Buffer defined with zero length in AML, creating\n"));
|
|
|
|
} else {
|
|
|
|
obj_desc->buffer.pointer =
|
2006-10-03 06:00:00 +02:00
|
|
|
ACPI_ALLOCATE_ZEROED(obj_desc->buffer.length);
|
2005-04-17 00:20:36 +02:00
|
|
|
if (!obj_desc->buffer.pointer) {
|
2005-08-05 06:44:28 +02:00
|
|
|
acpi_ut_delete_object_desc(obj_desc);
|
|
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Initialize buffer from the byte_list (if present) */
|
|
|
|
|
|
|
|
if (byte_list) {
|
2005-08-05 06:44:28 +02:00
|
|
|
ACPI_MEMCPY(obj_desc->buffer.pointer,
|
|
|
|
byte_list->named.data, byte_list_length);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
obj_desc->buffer.flags |= AOPOBJ_DATA_VALID;
|
2005-08-05 06:44:28 +02:00
|
|
|
op->common.node = (struct acpi_namespace_node *)obj_desc;
|
|
|
|
return_ACPI_STATUS(AE_OK);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2005-04-19 04:49:35 +02:00
|
|
|
/*******************************************************************************
|
2005-04-17 00:20:36 +02:00
|
|
|
*
|
|
|
|
* FUNCTION: acpi_ds_build_internal_package_obj
|
|
|
|
*
|
|
|
|
* PARAMETERS: walk_state - Current walk state
|
|
|
|
* Op - Parser object to be translated
|
|
|
|
* package_length - Number of elements in the package
|
|
|
|
* obj_desc_ptr - Where the ACPI internal object is returned
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: Translate a parser Op package object to the equivalent
|
|
|
|
* namespace object
|
|
|
|
*
|
2005-04-19 04:49:35 +02:00
|
|
|
******************************************************************************/
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
acpi_status
|
2005-08-05 06:44:28 +02:00
|
|
|
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_ptr)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
2005-08-05 06:44:28 +02:00
|
|
|
union acpi_parse_object *arg;
|
|
|
|
union acpi_parse_object *parent;
|
|
|
|
union acpi_operand_object *obj_desc = NULL;
|
|
|
|
u32 package_list_length;
|
|
|
|
acpi_status status = AE_OK;
|
2005-12-16 23:05:00 +01:00
|
|
|
acpi_native_uint i;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
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 23:15:00 +02:00
|
|
|
ACPI_FUNCTION_TRACE(ds_build_internal_package_obj);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
/* Find the parent of a possibly nested package */
|
|
|
|
|
|
|
|
parent = op->common.parent;
|
2005-08-05 06:44:28 +02:00
|
|
|
while ((parent->common.aml_opcode == AML_PACKAGE_OP) ||
|
|
|
|
(parent->common.aml_opcode == AML_VAR_PACKAGE_OP)) {
|
2005-04-17 00:20:36 +02:00
|
|
|
parent = parent->common.parent;
|
|
|
|
}
|
|
|
|
|
2005-12-16 23:05:00 +01:00
|
|
|
/*
|
|
|
|
* If we are evaluating a Named package object "Name (xxxx, Package)",
|
|
|
|
* the package object already exists, otherwise it must be created.
|
|
|
|
*/
|
2005-04-17 00:20:36 +02:00
|
|
|
obj_desc = *obj_desc_ptr;
|
2005-12-16 23:05:00 +01:00
|
|
|
if (!obj_desc) {
|
2005-08-05 06:44:28 +02:00
|
|
|
obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE);
|
2005-04-17 00:20:36 +02:00
|
|
|
*obj_desc_ptr = obj_desc;
|
|
|
|
if (!obj_desc) {
|
2005-08-05 06:44:28 +02:00
|
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
obj_desc->package.node = parent->common.node;
|
|
|
|
}
|
|
|
|
|
|
|
|
obj_desc->package.count = package_length;
|
|
|
|
|
|
|
|
/* Count the number of items in the package list */
|
|
|
|
|
|
|
|
arg = op->common.value.arg;
|
|
|
|
arg = arg->common.next;
|
2005-12-16 23:05:00 +01:00
|
|
|
for (package_list_length = 0; arg; package_list_length++) {
|
2005-04-17 00:20:36 +02:00
|
|
|
arg = arg->common.next;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The package length (number of elements) will be the greater
|
|
|
|
* of the specified length and the length of the initializer list
|
|
|
|
*/
|
|
|
|
if (package_list_length > package_length) {
|
|
|
|
obj_desc->package.count = package_list_length;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Allocate the pointer array (array of pointers to the
|
|
|
|
* individual objects). Add an extra pointer slot so
|
|
|
|
* that the list is always null terminated.
|
|
|
|
*/
|
2006-10-03 06:00:00 +02:00
|
|
|
obj_desc->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size)
|
|
|
|
obj_desc->package.
|
|
|
|
count +
|
|
|
|
1) * sizeof(void *));
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
if (!obj_desc->package.elements) {
|
2005-08-05 06:44:28 +02:00
|
|
|
acpi_ut_delete_object_desc(obj_desc);
|
|
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2005-12-16 23:05:00 +01:00
|
|
|
* Initialize all elements of the package
|
2005-04-17 00:20:36 +02:00
|
|
|
*/
|
|
|
|
arg = op->common.value.arg;
|
|
|
|
arg = arg->common.next;
|
2005-12-16 23:05:00 +01:00
|
|
|
for (i = 0; arg; i++) {
|
2005-04-17 00:20:36 +02:00
|
|
|
if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) {
|
2006-10-02 06:00:00 +02:00
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
/* Object (package or buffer) is already built */
|
|
|
|
|
2005-04-19 04:49:35 +02:00
|
|
|
obj_desc->package.elements[i] =
|
2005-08-05 06:44:28 +02:00
|
|
|
ACPI_CAST_PTR(union acpi_operand_object,
|
|
|
|
arg->common.node);
|
|
|
|
} else {
|
|
|
|
status = acpi_ds_build_internal_object(walk_state, arg,
|
|
|
|
&obj_desc->
|
|
|
|
package.
|
|
|
|
elements[i]);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
arg = arg->common.next;
|
|
|
|
}
|
|
|
|
|
|
|
|
obj_desc->package.flags |= AOPOBJ_DATA_VALID;
|
2005-08-05 06:44:28 +02:00
|
|
|
op->common.node = (struct acpi_namespace_node *)obj_desc;
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2005-04-19 04:49:35 +02:00
|
|
|
/*******************************************************************************
|
2005-04-17 00:20:36 +02:00
|
|
|
*
|
|
|
|
* FUNCTION: acpi_ds_create_node
|
|
|
|
*
|
|
|
|
* PARAMETERS: walk_state - Current walk state
|
|
|
|
* Node - NS Node to be initialized
|
|
|
|
* Op - Parser object to be translated
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: Create the object to be associated with a namespace node
|
|
|
|
*
|
2005-04-19 04:49:35 +02:00
|
|
|
******************************************************************************/
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
acpi_status
|
2005-08-05 06:44:28 +02:00
|
|
|
acpi_ds_create_node(struct acpi_walk_state *walk_state,
|
|
|
|
struct acpi_namespace_node *node,
|
|
|
|
union acpi_parse_object *op)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
2005-08-05 06:44:28 +02:00
|
|
|
acpi_status status;
|
|
|
|
union acpi_operand_object *obj_desc;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
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 23:15:00 +02:00
|
|
|
ACPI_FUNCTION_TRACE_PTR(ds_create_node, op);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Because of the execution pass through the non-control-method
|
|
|
|
* parts of the table, we can arrive here twice. Only init
|
|
|
|
* the named object node the first time through
|
|
|
|
*/
|
2005-08-05 06:44:28 +02:00
|
|
|
if (acpi_ns_get_attached_object(node)) {
|
|
|
|
return_ACPI_STATUS(AE_OK);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
if (!op->common.value.arg) {
|
2006-10-02 06:00:00 +02:00
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
/* No arguments, there is nothing to do */
|
|
|
|
|
2005-08-05 06:44:28 +02:00
|
|
|
return_ACPI_STATUS(AE_OK);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Build an internal object for the argument(s) */
|
|
|
|
|
2005-08-05 06:44:28 +02:00
|
|
|
status = acpi_ds_build_internal_object(walk_state, op->common.value.arg,
|
|
|
|
&obj_desc);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Re-type the object according to its argument */
|
|
|
|
|
2005-08-05 06:44:28 +02:00
|
|
|
node->type = ACPI_GET_OBJECT_TYPE(obj_desc);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
/* Attach obj to node */
|
|
|
|
|
2005-08-05 06:44:28 +02:00
|
|
|
status = acpi_ns_attach_object(node, obj_desc, node->type);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
/* Remove local reference to the object */
|
|
|
|
|
2005-08-05 06:44:28 +02:00
|
|
|
acpi_ut_remove_reference(obj_desc);
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
2005-08-05 06:44:28 +02:00
|
|
|
#endif /* ACPI_NO_METHOD_EXECUTION */
|
2005-04-17 00:20:36 +02:00
|
|
|
|
2005-04-19 04:49:35 +02:00
|
|
|
/*******************************************************************************
|
2005-04-17 00:20:36 +02:00
|
|
|
*
|
|
|
|
* FUNCTION: acpi_ds_init_object_from_op
|
|
|
|
*
|
|
|
|
* PARAMETERS: walk_state - Current walk state
|
|
|
|
* Op - Parser op used to init the internal object
|
|
|
|
* Opcode - AML opcode associated with the object
|
|
|
|
* ret_obj_desc - Namespace object to be initialized
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: Initialize a namespace object from a parser Op and its
|
|
|
|
* associated arguments. The namespace object is a more compact
|
|
|
|
* representation of the Op and its arguments.
|
|
|
|
*
|
2005-04-19 04:49:35 +02:00
|
|
|
******************************************************************************/
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
acpi_status
|
2005-08-05 06:44:28 +02:00
|
|
|
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)
|
2005-04-17 00:20:36 +02:00
|
|
|
{
|
2005-08-05 06:44:28 +02:00
|
|
|
const struct acpi_opcode_info *op_info;
|
|
|
|
union acpi_operand_object *obj_desc;
|
|
|
|
acpi_status status = AE_OK;
|
2005-04-17 00:20:36 +02:00
|
|
|
|
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 23:15:00 +02:00
|
|
|
ACPI_FUNCTION_TRACE(ds_init_object_from_op);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
obj_desc = *ret_obj_desc;
|
2005-08-05 06:44:28 +02:00
|
|
|
op_info = acpi_ps_get_opcode_info(opcode);
|
2005-04-17 00:20:36 +02:00
|
|
|
if (op_info->class == AML_CLASS_UNKNOWN) {
|
2006-10-02 06:00:00 +02:00
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
/* Unknown opcode */
|
|
|
|
|
2005-08-05 06:44:28 +02:00
|
|
|
return_ACPI_STATUS(AE_TYPE);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Perform per-object initialization */
|
|
|
|
|
2005-08-05 06:44:28 +02:00
|
|
|
switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
|
2005-04-17 00:20:36 +02:00
|
|
|
case ACPI_TYPE_BUFFER:
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Defer evaluation of Buffer term_arg operand
|
|
|
|
*/
|
2005-08-05 06:44:28 +02:00
|
|
|
obj_desc->buffer.node = (struct acpi_namespace_node *)
|
|
|
|
walk_state->operands[0];
|
2005-04-17 00:20:36 +02:00
|
|
|
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
|
|
|
|
*/
|
2005-08-05 06:44:28 +02:00
|
|
|
obj_desc->package.node = (struct acpi_namespace_node *)
|
|
|
|
walk_state->operands[0];
|
2005-04-17 00:20:36 +02:00
|
|
|
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.
|
2005-04-19 04:49:35 +02:00
|
|
|
* 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.
|
2005-04-17 00:20:36 +02:00
|
|
|
*/
|
|
|
|
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:
|
|
|
|
|
|
|
|
obj_desc->integer.value = ACPI_INTEGER_MAX;
|
|
|
|
|
|
|
|
/* Truncate value if we are executing from a 32-bit ACPI table */
|
|
|
|
|
|
|
|
#ifndef ACPI_NO_METHOD_EXECUTION
|
2005-08-05 06:44:28 +02:00
|
|
|
acpi_ex_truncate_for32bit_table(obj_desc);
|
2005-04-17 00:20:36 +02:00
|
|
|
#endif
|
|
|
|
break;
|
|
|
|
|
|
|
|
case AML_REVISION_OP:
|
|
|
|
|
|
|
|
obj_desc->integer.value = ACPI_CA_VERSION;
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
2006-01-27 22:43:00 +01:00
|
|
|
ACPI_ERROR((AE_INFO,
|
|
|
|
"Unknown constant opcode %X",
|
|
|
|
opcode));
|
2005-04-17 00:20:36 +02:00
|
|
|
status = AE_AML_OPERAND_TYPE;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case AML_TYPE_LITERAL:
|
|
|
|
|
|
|
|
obj_desc->integer.value = op->common.value.integer;
|
2005-05-13 06:00:00 +02:00
|
|
|
#ifndef ACPI_NO_METHOD_EXECUTION
|
2005-08-05 06:44:28 +02:00
|
|
|
acpi_ex_truncate_for32bit_table(obj_desc);
|
2005-05-13 06:00:00 +02:00
|
|
|
#endif
|
2005-04-17 00:20:36 +02:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2006-01-27 22:43:00 +01:00
|
|
|
ACPI_ERROR((AE_INFO, "Unknown Integer type %X",
|
|
|
|
op_info->type));
|
2005-04-17 00:20:36 +02:00
|
|
|
status = AE_AML_OPERAND_TYPE;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ACPI_TYPE_STRING:
|
|
|
|
|
|
|
|
obj_desc->string.pointer = op->common.value.string;
|
2005-08-05 06:44:28 +02:00
|
|
|
obj_desc->string.length =
|
|
|
|
(u32) ACPI_STRLEN(op->common.value.string);
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
* 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:
|
|
|
|
|
|
|
|
/* Split the opcode into a base opcode + offset */
|
|
|
|
|
|
|
|
obj_desc->reference.opcode = AML_LOCAL_OP;
|
|
|
|
obj_desc->reference.offset = opcode - AML_LOCAL_OP;
|
|
|
|
|
|
|
|
#ifndef ACPI_NO_METHOD_EXECUTION
|
2005-08-05 06:44:28 +02:00
|
|
|
status = acpi_ds_method_data_get_node(AML_LOCAL_OP,
|
|
|
|
obj_desc->
|
|
|
|
reference.offset,
|
|
|
|
walk_state,
|
|
|
|
(struct
|
|
|
|
acpi_namespace_node
|
|
|
|
**)&obj_desc->
|
|
|
|
reference.object);
|
2005-04-17 00:20:36 +02:00
|
|
|
#endif
|
|
|
|
break;
|
|
|
|
|
|
|
|
case AML_TYPE_METHOD_ARGUMENT:
|
|
|
|
|
|
|
|
/* Split the opcode into a base opcode + offset */
|
|
|
|
|
|
|
|
obj_desc->reference.opcode = AML_ARG_OP;
|
|
|
|
obj_desc->reference.offset = opcode - AML_ARG_OP;
|
|
|
|
|
|
|
|
#ifndef ACPI_NO_METHOD_EXECUTION
|
2005-08-05 06:44:28 +02:00
|
|
|
status = acpi_ds_method_data_get_node(AML_ARG_OP,
|
|
|
|
obj_desc->
|
|
|
|
reference.offset,
|
|
|
|
walk_state,
|
|
|
|
(struct
|
|
|
|
acpi_namespace_node
|
|
|
|
**)&obj_desc->
|
|
|
|
reference.object);
|
2005-04-17 00:20:36 +02:00
|
|
|
#endif
|
|
|
|
break;
|
|
|
|
|
2005-08-05 06:44:28 +02:00
|
|
|
default: /* Other literals, etc.. */
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) {
|
2006-10-02 06:00:00 +02:00
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
/* Node was saved in Op */
|
|
|
|
|
|
|
|
obj_desc->reference.node = op->common.node;
|
|
|
|
}
|
|
|
|
|
|
|
|
obj_desc->reference.opcode = opcode;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
2006-01-27 22:43:00 +01:00
|
|
|
ACPI_ERROR((AE_INFO, "Unimplemented data type: %X",
|
|
|
|
ACPI_GET_OBJECT_TYPE(obj_desc)));
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
status = AE_AML_OPERAND_TYPE;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2005-08-05 06:44:28 +02:00
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 00:20:36 +02:00
|
|
|
}
|