******************************************************************************/
/*
- * Copyright (C) 2000 - 2005, R. Byron Moore
+ * Copyright (C) 2000 - 2006, R. Byron Moore
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* POSSIBILITY OF SUCH DAMAGES.
*/
-
#include <acpi/acpi.h>
#include <acpi/acparser.h>
#include <acpi/acinterp.h>
#include <acpi/acnamesp.h>
-
#define _COMPONENT ACPI_NAMESPACE
- ACPI_MODULE_NAME ("nseval")
+ACPI_MODULE_NAME("nseval")
+
+/* Local prototypes */
+static acpi_status
+acpi_ns_execute_control_method(struct acpi_parameter_info *info);
+static acpi_status acpi_ns_get_object_value(struct acpi_parameter_info *info);
/*******************************************************************************
*
* FUNCTION: acpi_ns_evaluate_relative
*
- * PARAMETERS: Pathname - Name of method to execute, If NULL, the
- * handle is the object to execute
- * Info - Method info block
+ * PARAMETERS: Pathname - Name of method to execute, If NULL, the
+ * handle is the object to execute
+ * Info - Method info block, contains:
+ * return_object - Where to put method's return value (if
+ * any). If NULL, no value is returned.
+ * Params - List of parameters to pass to the method,
+ * terminated by NULL. Params itself may be
+ * NULL if no parameters are being passed.
*
* RETURN: Status
*
- * DESCRIPTION: Find and execute the requested method using the handle as a
- * scope
+ * DESCRIPTION: Evaluate the object or find and execute the requested method
*
* MUTEX: Locks Namespace
*
******************************************************************************/
acpi_status
-acpi_ns_evaluate_relative (
- char *pathname,
- struct acpi_parameter_info *info)
+acpi_ns_evaluate_relative(char *pathname, struct acpi_parameter_info *info)
{
- acpi_status status;
- struct acpi_namespace_node *node = NULL;
- union acpi_generic_state *scope_info;
- char *internal_path = NULL;
-
-
- ACPI_FUNCTION_TRACE ("ns_evaluate_relative");
+ acpi_status status;
+ struct acpi_namespace_node *node = NULL;
+ union acpi_generic_state *scope_info;
+ char *internal_path = NULL;
+ ACPI_FUNCTION_TRACE("ns_evaluate_relative");
/*
* Must have a valid object handle
*/
if (!info || !info->node) {
- return_ACPI_STATUS (AE_BAD_PARAMETER);
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
}
/* Build an internal name string for the method */
- status = acpi_ns_internalize_name (pathname, &internal_path);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status = acpi_ns_internalize_name(pathname, &internal_path);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
- scope_info = acpi_ut_create_generic_state ();
+ scope_info = acpi_ut_create_generic_state();
if (!scope_info) {
goto cleanup1;
}
/* Get the prefix handle and Node */
- status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (status)) {
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
goto cleanup;
}
- info->node = acpi_ns_map_handle_to_node (info->node);
+ info->node = acpi_ns_map_handle_to_node(info->node);
if (!info->node) {
- (void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
status = AE_BAD_PARAMETER;
goto cleanup;
}
/* Lookup the name in the namespace */
scope_info->scope.node = info->node;
- status = acpi_ns_lookup (scope_info, internal_path, ACPI_TYPE_ANY,
- ACPI_IMODE_EXECUTE, ACPI_NS_NO_UPSEARCH, NULL,
- &node);
+ status = acpi_ns_lookup(scope_info, internal_path, ACPI_TYPE_ANY,
+ ACPI_IMODE_EXECUTE, ACPI_NS_NO_UPSEARCH, NULL,
+ &node);
- (void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (status)) {
- ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "Object [%s] not found [%s]\n",
- pathname, acpi_format_exception (status)));
+ if (ACPI_FAILURE(status)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "Object [%s] not found [%s]\n",
+ pathname, acpi_format_exception(status)));
goto cleanup;
}
/*
* Now that we have a handle to the object, we can attempt to evaluate it.
*/
- ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "%s [%p] Value %p\n",
- pathname, node, acpi_ns_get_attached_object (node)));
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%s [%p] Value %p\n",
+ pathname, node, acpi_ns_get_attached_object(node)));
info->node = node;
- status = acpi_ns_evaluate_by_handle (info);
+ status = acpi_ns_evaluate_by_handle(info);
- ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "*** Completed eval of object %s ***\n",
- pathname));
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "*** Completed eval of object %s ***\n", pathname));
-cleanup:
- acpi_ut_delete_generic_state (scope_info);
+ cleanup:
+ acpi_ut_delete_generic_state(scope_info);
-cleanup1:
- ACPI_MEM_FREE (internal_path);
- return_ACPI_STATUS (status);
+ cleanup1:
+ ACPI_MEM_FREE(internal_path);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_evaluate_by_name
*
- * PARAMETERS: Pathname - Fully qualified pathname to the object
- * Info - Contains:
+ * PARAMETERS: Pathname - Fully qualified pathname to the object
+ * Info - Method info block, contains:
* return_object - Where to put method's return value (if
* any). If NULL, no value is returned.
* Params - List of parameters to pass to the method,
*
* RETURN: Status
*
- * DESCRIPTION: Find and execute the requested method passing the given
- * parameters
+ * DESCRIPTION: Evaluate the object or rind and execute the requested method
+ * passing the given parameters
*
* MUTEX: Locks Namespace
*
******************************************************************************/
acpi_status
-acpi_ns_evaluate_by_name (
- char *pathname,
- struct acpi_parameter_info *info)
+acpi_ns_evaluate_by_name(char *pathname, struct acpi_parameter_info *info)
{
- acpi_status status;
- char *internal_path = NULL;
-
-
- ACPI_FUNCTION_TRACE ("ns_evaluate_by_name");
+ acpi_status status;
+ char *internal_path = NULL;
+ ACPI_FUNCTION_TRACE("ns_evaluate_by_name");
/* Build an internal name string for the method */
- status = acpi_ns_internalize_name (pathname, &internal_path);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status = acpi_ns_internalize_name(pathname, &internal_path);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
- status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (status)) {
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
goto cleanup;
}
/* Lookup the name in the namespace */
- status = acpi_ns_lookup (NULL, internal_path, ACPI_TYPE_ANY,
- ACPI_IMODE_EXECUTE, ACPI_NS_NO_UPSEARCH, NULL,
- &info->node);
+ status = acpi_ns_lookup(NULL, internal_path, ACPI_TYPE_ANY,
+ ACPI_IMODE_EXECUTE, ACPI_NS_NO_UPSEARCH, NULL,
+ &info->node);
- (void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (status)) {
- ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
- "Object at [%s] was not found, status=%.4X\n",
- pathname, status));
+ if (ACPI_FAILURE(status)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "Object at [%s] was not found, status=%.4X\n",
+ pathname, status));
goto cleanup;
}
/*
* Now that we have a handle to the object, we can attempt to evaluate it.
*/
- ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "%s [%p] Value %p\n",
- pathname, info->node, acpi_ns_get_attached_object (info->node)));
-
- status = acpi_ns_evaluate_by_handle (info);
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%s [%p] Value %p\n",
+ pathname, info->node,
+ acpi_ns_get_attached_object(info->node)));
- ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "*** Completed eval of object %s ***\n",
- pathname));
+ status = acpi_ns_evaluate_by_handle(info);
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "*** Completed eval of object %s ***\n", pathname));
-cleanup:
+ cleanup:
/* Cleanup */
if (internal_path) {
- ACPI_MEM_FREE (internal_path);
+ ACPI_MEM_FREE(internal_path);
}
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_evaluate_by_handle
*
- * PARAMETERS: Handle - Method Node to execute
- * Params - List of parameters to pass to the method,
- * terminated by NULL. Params itself may be
+ * PARAMETERS: Info - Method info block, contains:
+ * Node - Method/Object Node to execute
+ * Parameters - List of parameters to pass to the method,
+ * terminated by NULL. Params itself may be
* NULL if no parameters are being passed.
- * param_type - Type of Parameter list
- * return_object - Where to put method's return value (if
- * any). If NULL, no value is returned.
+ * return_object - Where to put method's return value (if
+ * any). If NULL, no value is returned.
+ * parameter_type - Type of Parameter list
+ * return_object - Where to put method's return value (if
+ * any). If NULL, no value is returned.
*
* RETURN: Status
*
- * DESCRIPTION: Execute the requested method passing the given parameters
+ * DESCRIPTION: Evaluate object or execute the requested method passing the
+ * given parameters
*
* MUTEX: Locks Namespace
*
******************************************************************************/
-acpi_status
-acpi_ns_evaluate_by_handle (
- struct acpi_parameter_info *info)
+acpi_status acpi_ns_evaluate_by_handle(struct acpi_parameter_info *info)
{
- acpi_status status;
-
-
- ACPI_FUNCTION_TRACE ("ns_evaluate_by_handle");
+ acpi_status status;
+ ACPI_FUNCTION_TRACE("ns_evaluate_by_handle");
/* Check if namespace has been initialized */
if (!acpi_gbl_root_node) {
- return_ACPI_STATUS (AE_NO_NAMESPACE);
+ return_ACPI_STATUS(AE_NO_NAMESPACE);
}
/* Parameter Validation */
if (!info) {
- return_ACPI_STATUS (AE_BAD_PARAMETER);
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
}
/* Initialize the return value to an invalid object */
/* Get the prefix handle and Node */
- status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
- info->node = acpi_ns_map_handle_to_node (info->node);
+ info->node = acpi_ns_map_handle_to_node(info->node);
if (!info->node) {
- (void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
- return_ACPI_STATUS (AE_BAD_PARAMETER);
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
}
/*
* For a method alias, we must grab the actual method node so that proper
* scoping context will be established before execution.
*/
- if (acpi_ns_get_type (info->node) == ACPI_TYPE_LOCAL_METHOD_ALIAS) {
- info->node = ACPI_CAST_PTR (struct acpi_namespace_node, info->node->object);
+ if (acpi_ns_get_type(info->node) == ACPI_TYPE_LOCAL_METHOD_ALIAS) {
+ info->node =
+ ACPI_CAST_PTR(struct acpi_namespace_node,
+ info->node->object);
}
/*
*
* In both cases, the namespace is unlocked by the acpi_ns* procedure
*/
- if (acpi_ns_get_type (info->node) == ACPI_TYPE_METHOD) {
+ if (acpi_ns_get_type(info->node) == ACPI_TYPE_METHOD) {
/*
* Case 1) We have an actual control method to execute
*/
- status = acpi_ns_execute_control_method (info);
- }
- else {
+ status = acpi_ns_execute_control_method(info);
+ } else {
/*
* Case 2) Object is NOT a method, just return its current value
*/
- status = acpi_ns_get_object_value (info);
+ status = acpi_ns_get_object_value(info);
}
/*
* Namespace was unlocked by the handling acpi_ns* function, so we
* just return
*/
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_execute_control_method
*
- * PARAMETERS: Info - Method info block (w/params)
+ * PARAMETERS: Info - Method info block, contains:
+ * Node - Method Node to execute
+ * obj_desc - Method object
+ * Parameters - List of parameters to pass to the method,
+ * terminated by NULL. Params itself may be
+ * NULL if no parameters are being passed.
+ * return_object - Where to put method's return value (if
+ * any). If NULL, no value is returned.
+ * parameter_type - Type of Parameter list
+ * return_object - Where to put method's return value (if
+ * any). If NULL, no value is returned.
*
* RETURN: Status
*
*
******************************************************************************/
-acpi_status
-acpi_ns_execute_control_method (
- struct acpi_parameter_info *info)
+static acpi_status
+acpi_ns_execute_control_method(struct acpi_parameter_info *info)
{
- acpi_status status;
- union acpi_operand_object *obj_desc;
-
-
- ACPI_FUNCTION_TRACE ("ns_execute_control_method");
+ acpi_status status;
+ ACPI_FUNCTION_TRACE("ns_execute_control_method");
/* Verify that there is a method associated with this object */
- obj_desc = acpi_ns_get_attached_object (info->node);
- if (!obj_desc) {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "No attached method object\n"));
+ info->obj_desc = acpi_ns_get_attached_object(info->node);
+ if (!info->obj_desc) {
+ ACPI_ERROR((AE_INFO, "No attached method object"));
- (void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
- return_ACPI_STATUS (AE_NULL_OBJECT);
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return_ACPI_STATUS(AE_NULL_OBJECT);
}
- ACPI_DUMP_PATHNAME (info->node, "Execute Method:",
- ACPI_LV_INFO, _COMPONENT);
+ ACPI_DUMP_PATHNAME(info->node, "Execute Method:",
+ ACPI_LV_INFO, _COMPONENT);
- ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Method at AML address %p Length %X\n",
- obj_desc->method.aml_start + 1, obj_desc->method.aml_length - 1));
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Method at AML address %p Length %X\n",
+ info->obj_desc->method.aml_start + 1,
+ info->obj_desc->method.aml_length - 1));
/*
* Unlock the namespace before execution. This allows namespace access
* interpreter locks to ensure that no thread is using the portion of the
* namespace that is being deleted.
*/
- status = acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
/*
* Execute the method via the interpreter. The interpreter is locked
* here before calling into the AML parser
*/
- status = acpi_ex_enter_interpreter ();
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status = acpi_ex_enter_interpreter();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
- status = acpi_psx_execute (info);
- acpi_ex_exit_interpreter ();
+ status = acpi_ps_execute_method(info);
+ acpi_ex_exit_interpreter();
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_get_object_value
*
- * PARAMETERS: Info - Method info block (w/params)
+ * PARAMETERS: Info - Method info block, contains:
+ * Node - Object's NS node
+ * return_object - Where to put object value (if
+ * any). If NULL, no value is returned.
*
* RETURN: Status
*
*
******************************************************************************/
-acpi_status
-acpi_ns_get_object_value (
- struct acpi_parameter_info *info)
+static acpi_status acpi_ns_get_object_value(struct acpi_parameter_info *info)
{
- acpi_status status = AE_OK;
- struct acpi_namespace_node *resolved_node = info->node;
-
-
- ACPI_FUNCTION_TRACE ("ns_get_object_value");
+ acpi_status status = AE_OK;
+ struct acpi_namespace_node *resolved_node = info->node;
+ ACPI_FUNCTION_TRACE("ns_get_object_value");
/*
* Objects require additional resolution steps (e.g., the Node may be a
*
* We must release the namespace lock before entering the intepreter.
*/
- status = acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
- status = acpi_ex_enter_interpreter ();
- if (ACPI_SUCCESS (status)) {
- status = acpi_ex_resolve_node_to_value (&resolved_node, NULL);
+ status = acpi_ex_enter_interpreter();
+ if (ACPI_SUCCESS(status)) {
+ status = acpi_ex_resolve_node_to_value(&resolved_node, NULL);
/*
* If acpi_ex_resolve_node_to_value() succeeded, the return value was placed
* in resolved_node.
*/
- acpi_ex_exit_interpreter ();
+ acpi_ex_exit_interpreter();
- if (ACPI_SUCCESS (status)) {
+ if (ACPI_SUCCESS(status)) {
status = AE_CTRL_RETURN_VALUE;
info->return_object = ACPI_CAST_PTR
- (union acpi_operand_object, resolved_node);
- ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "Returning object %p [%s]\n",
- info->return_object,
- acpi_ut_get_object_type_name (info->return_object)));
+ (union acpi_operand_object, resolved_node);
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "Returning object %p [%s]\n",
+ info->return_object,
+ acpi_ut_get_object_type_name(info->
+ return_object)));
}
}
/* Namespace is unlocked */
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
git://git.onelab.eu / linux-2.6.git / blobdiff