0,0 → 1,849 |
/****************************************************************************** |
* |
* Module Name: dsobject - Dispatcher object management routines |
* |
*****************************************************************************/ |
|
/* |
* Copyright (C) 2000 - 2015, Intel Corp. |
* 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> |
#include "accommon.h" |
#include "acparser.h" |
#include "amlcode.h" |
#include "acdispat.h" |
#include "acnamesp.h" |
#include "acinterp.h" |
|
#define _COMPONENT ACPI_DISPATCHER |
ACPI_MODULE_NAME("dsobject") |
|
/* Local prototypes */ |
static acpi_status |
acpi_ds_build_internal_object(struct acpi_walk_state *walk_state, |
union acpi_parse_object *op, |
union acpi_operand_object **obj_desc_ptr); |
|
#ifndef ACPI_NO_METHOD_EXECUTION |
/******************************************************************************* |
* |
* FUNCTION: acpi_ds_build_internal_object |
* |
* PARAMETERS: walk_state - Current walk state |
* op - Parser object to be translated |
* 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! |
* |
******************************************************************************/ |
|
static acpi_status |
acpi_ds_build_internal_object(struct acpi_walk_state *walk_state, |
union acpi_parse_object *op, |
union acpi_operand_object **obj_desc_ptr) |
{ |
union acpi_operand_object *obj_desc; |
acpi_status status; |
acpi_object_type type; |
|
ACPI_FUNCTION_TRACE(ds_build_internal_object); |
|
*obj_desc_ptr = NULL; |
if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) { |
/* |
* This is a named object reference. If this name was |
* previously looked up in the namespace, it was stored in this op. |
* Otherwise, go ahead and look it up now |
*/ |
if (!op->common.node) { |
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, |
ACPI_CAST_INDIRECT_PTR(struct |
acpi_namespace_node, |
&(op-> |
common. |
node))); |
if (ACPI_FAILURE(status)) { |
|
/* 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 { |
ACPI_ERROR_NAMESPACE(op->common.value. |
string, status); |
} |
|
return_ACPI_STATUS(status); |
} |
} |
|
/* 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. |
*/ |
obj_desc = |
ACPI_CAST_PTR(union acpi_operand_object, |
op->common.node); |
|
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); |
} |
|
/* |
* 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) { |
/* |
* For these types, we need the actual node, not the subobject. |
* 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. |
*/ |
case ACPI_TYPE_MUTEX: |
case ACPI_TYPE_METHOD: |
case ACPI_TYPE_POWER: |
case ACPI_TYPE_PROCESSOR: |
case ACPI_TYPE_EVENT: |
case ACPI_TYPE_REGION: |
|
/* We will create a reference object for these types below */ |
break; |
|
default: |
/* |
* All other types - the node was resolved to an actual |
* object, we are done. |
*/ |
goto exit; |
} |
} |
} |
|
/* Create and init a new internal ACPI object */ |
|
obj_desc = acpi_ut_create_internal_object((acpi_ps_get_opcode_info |
(op->common.aml_opcode))-> |
object_type); |
if (!obj_desc) { |
return_ACPI_STATUS(AE_NO_MEMORY); |
} |
|
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); |
} |
|
exit: |
*obj_desc_ptr = obj_desc; |
return_ACPI_STATUS(status); |
} |
|
/******************************************************************************* |
* |
* FUNCTION: acpi_ds_build_internal_buffer_obj |
* |
* 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 |
* |
******************************************************************************/ |
|
acpi_status |
acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state, |
union acpi_parse_object *op, |
u32 buffer_length, |
union acpi_operand_object **obj_desc_ptr) |
{ |
union acpi_parse_object *arg; |
union acpi_operand_object *obj_desc; |
union acpi_parse_object *byte_list; |
u32 byte_list_length = 0; |
|
ACPI_FUNCTION_TRACE(ds_build_internal_buffer_obj); |
|
/* |
* 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. |
*/ |
obj_desc = *obj_desc_ptr; |
if (!obj_desc) { |
|
/* Create a new buffer object */ |
|
obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER); |
*obj_desc_ptr = obj_desc; |
if (!obj_desc) { |
return_ACPI_STATUS(AE_NO_MEMORY); |
} |
} |
|
/* |
* 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. |
*/ |
arg = op->common.value.arg; /* skip first arg */ |
|
byte_list = arg->named.next; |
if (byte_list) { |
if (byte_list->common.aml_opcode != AML_INT_BYTELIST_OP) { |
ACPI_ERROR((AE_INFO, |
"Expecting bytelist, found AML opcode 0x%X in op %p", |
byte_list->common.aml_opcode, byte_list)); |
|
acpi_ut_remove_reference(obj_desc); |
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; |
ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
"Buffer defined with zero length in AML, creating\n")); |
} else { |
obj_desc->buffer.pointer = |
ACPI_ALLOCATE_ZEROED(obj_desc->buffer.length); |
if (!obj_desc->buffer.pointer) { |
acpi_ut_delete_object_desc(obj_desc); |
return_ACPI_STATUS(AE_NO_MEMORY); |
} |
|
/* Initialize buffer from the byte_list (if present) */ |
|
if (byte_list) { |
memcpy(obj_desc->buffer.pointer, byte_list->named.data, |
byte_list_length); |
} |
} |
|
obj_desc->buffer.flags |= AOPOBJ_DATA_VALID; |
op->common.node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_desc); |
return_ACPI_STATUS(AE_OK); |
} |
|
/******************************************************************************* |
* |
* FUNCTION: acpi_ds_build_internal_package_obj |
* |
* PARAMETERS: walk_state - Current walk state |
* op - Parser object to be translated |
* element_count - Number of elements in the package - this is |
* the num_elements argument to 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 |
* |
* 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. |
* |
******************************************************************************/ |
|
acpi_status |
acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state, |
union acpi_parse_object *op, |
u32 element_count, |
union acpi_operand_object **obj_desc_ptr) |
{ |
union acpi_parse_object *arg; |
union acpi_parse_object *parent; |
union acpi_operand_object *obj_desc = NULL; |
acpi_status status = AE_OK; |
u32 i; |
u16 index; |
u16 reference_count; |
|
ACPI_FUNCTION_TRACE(ds_build_internal_package_obj); |
|
/* Find the parent of a possibly nested package */ |
|
parent = op->common.parent; |
while ((parent->common.aml_opcode == AML_PACKAGE_OP) || |
(parent->common.aml_opcode == AML_VAR_PACKAGE_OP)) { |
parent = parent->common.parent; |
} |
|
/* |
* If we are evaluating a Named package object "Name (xxxx, Package)", |
* the package object already exists, otherwise it must be created. |
*/ |
obj_desc = *obj_desc_ptr; |
if (!obj_desc) { |
obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE); |
*obj_desc_ptr = obj_desc; |
if (!obj_desc) { |
return_ACPI_STATUS(AE_NO_MEMORY); |
} |
|
obj_desc->package.node = parent->common.node; |
} |
|
/* |
* 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. |
*/ |
obj_desc->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size) |
element_count + |
1) * sizeof(void *)); |
|
if (!obj_desc->package.elements) { |
acpi_ut_delete_object_desc(obj_desc); |
return_ACPI_STATUS(AE_NO_MEMORY); |
} |
|
obj_desc->package.count = element_count; |
|
/* |
* 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. |
*/ |
arg = op->common.value.arg; |
arg = arg->common.next; |
for (i = 0; arg && (i < element_count); i++) { |
if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) { |
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); |
} |
} else { |
status = acpi_ds_build_internal_object(walk_state, arg, |
&obj_desc-> |
package. |
elements[i]); |
} |
|
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])); |
} |
} |
} |
|
arg = arg->common.next; |
} |
|
/* 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 |
* package_list. Truncate the package to num_elements. |
* |
* 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 |
* PackageList". However, we just print a message and |
* 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. |
*/ |
while (arg) { |
/* |
* 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; |
} |
|
/* Find out how many elements there really are */ |
|
i++; |
arg = arg->common.next; |
} |
|
ACPI_INFO((AE_INFO, |
"Actual Package length (%u) is larger than NumElements field (%u), truncated", |
i, element_count)); |
} 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. |
*/ |
ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
"Package List length (%u) smaller than NumElements count (%u), padded with null elements\n", |
i, element_count)); |
} |
|
obj_desc->package.flags |= AOPOBJ_DATA_VALID; |
op->common.node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_desc); |
return_ACPI_STATUS(status); |
} |
|
/******************************************************************************* |
* |
* 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 |
* |
******************************************************************************/ |
|
acpi_status |
acpi_ds_create_node(struct acpi_walk_state *walk_state, |
struct acpi_namespace_node *node, |
union acpi_parse_object *op) |
{ |
acpi_status status; |
union acpi_operand_object *obj_desc; |
|
ACPI_FUNCTION_TRACE_PTR(ds_create_node, op); |
|
/* |
* 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 |
*/ |
if (acpi_ns_get_attached_object(node)) { |
return_ACPI_STATUS(AE_OK); |
} |
|
if (!op->common.value.arg) { |
|
/* No arguments, there is nothing to do */ |
|
return_ACPI_STATUS(AE_OK); |
} |
|
/* Build an internal object for the argument(s) */ |
|
status = acpi_ds_build_internal_object(walk_state, op->common.value.arg, |
&obj_desc); |
if (ACPI_FAILURE(status)) { |
return_ACPI_STATUS(status); |
} |
|
/* Re-type the object according to its argument */ |
|
node->type = obj_desc->common.type; |
|
/* Attach obj to node */ |
|
status = acpi_ns_attach_object(node, obj_desc, node->type); |
|
/* Remove local reference to the object */ |
|
acpi_ut_remove_reference(obj_desc); |
return_ACPI_STATUS(status); |
} |
|
#endif /* ACPI_NO_METHOD_EXECUTION */ |
|
/******************************************************************************* |
* |
* 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. |
* |
******************************************************************************/ |
|
acpi_status |
acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state, |
union acpi_parse_object *op, |
u16 opcode, |
union acpi_operand_object **ret_obj_desc) |
{ |
const struct acpi_opcode_info *op_info; |
union acpi_operand_object *obj_desc; |
acpi_status status = AE_OK; |
|
ACPI_FUNCTION_TRACE(ds_init_object_from_op); |
|
obj_desc = *ret_obj_desc; |
op_info = acpi_ps_get_opcode_info(opcode); |
if (op_info->class == AML_CLASS_UNKNOWN) { |
|
/* Unknown opcode */ |
|
return_ACPI_STATUS(AE_TYPE); |
} |
|
/* Perform per-object initialization */ |
|
switch (obj_desc->common.type) { |
case ACPI_TYPE_BUFFER: |
/* |
* Defer evaluation of Buffer term_arg operand |
*/ |
obj_desc->buffer.node = |
ACPI_CAST_PTR(struct acpi_namespace_node, |
walk_state->operands[0]); |
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 |
*/ |
obj_desc->package.node = |
ACPI_CAST_PTR(struct acpi_namespace_node, |
walk_state->operands[0]); |
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. |
* 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. |
*/ |
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_UINT64_MAX; |
|
/* Truncate value if we are executing from a 32-bit ACPI table */ |
|
#ifndef ACPI_NO_METHOD_EXECUTION |
(void)acpi_ex_truncate_for32bit_table(obj_desc); |
#endif |
break; |
|
case AML_REVISION_OP: |
|
obj_desc->integer.value = ACPI_CA_VERSION; |
break; |
|
default: |
|
ACPI_ERROR((AE_INFO, |
"Unknown constant opcode 0x%X", |
opcode)); |
status = AE_AML_OPERAND_TYPE; |
break; |
} |
break; |
|
case AML_TYPE_LITERAL: |
|
obj_desc->integer.value = op->common.value.integer; |
|
#ifndef ACPI_NO_METHOD_EXECUTION |
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)); |
} |
#endif |
break; |
|
default: |
|
ACPI_ERROR((AE_INFO, "Unknown Integer type 0x%X", |
op_info->type)); |
status = AE_AML_OPERAND_TYPE; |
break; |
} |
break; |
|
case ACPI_TYPE_STRING: |
|
obj_desc->string.pointer = op->common.value.string; |
obj_desc->string.length = (u32)strlen(op->common.value.string); |
|
/* |
* 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: |
|
/* Local ID (0-7) is (AML opcode - base AML_LOCAL_OP) */ |
|
obj_desc->reference.value = |
((u32)opcode) - AML_LOCAL_OP; |
obj_desc->reference.class = ACPI_REFCLASS_LOCAL; |
|
#ifndef ACPI_NO_METHOD_EXECUTION |
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)); |
#endif |
break; |
|
case AML_TYPE_METHOD_ARGUMENT: |
|
/* Arg ID (0-6) is (AML opcode - base AML_ARG_OP) */ |
|
obj_desc->reference.value = ((u32)opcode) - AML_ARG_OP; |
obj_desc->reference.class = ACPI_REFCLASS_ARG; |
|
#ifndef ACPI_NO_METHOD_EXECUTION |
status = acpi_ds_method_data_get_node(ACPI_REFCLASS_ARG, |
obj_desc-> |
reference.value, |
walk_state, |
ACPI_CAST_INDIRECT_PTR |
(struct |
acpi_namespace_node, |
&obj_desc-> |
reference. |
object)); |
#endif |
break; |
|
default: /* Object name or Debug object */ |
|
switch (op->common.aml_opcode) { |
case AML_INT_NAMEPATH_OP: |
|
/* Node was saved in Op */ |
|
obj_desc->reference.node = op->common.node; |
obj_desc->reference.object = |
op->common.node->object; |
obj_desc->reference.class = ACPI_REFCLASS_NAME; |
break; |
|
case AML_DEBUG_OP: |
|
obj_desc->reference.class = ACPI_REFCLASS_DEBUG; |
break; |
|
default: |
|
ACPI_ERROR((AE_INFO, |
"Unimplemented reference type for AML opcode: 0x%4.4X", |
opcode)); |
return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
} |
break; |
} |
break; |
|
default: |
|
ACPI_ERROR((AE_INFO, "Unimplemented data type: 0x%X", |
obj_desc->common.type)); |
|
status = AE_AML_OPERAND_TYPE; |
break; |
} |
|
return_ACPI_STATUS(status); |
} |