******************************************************************************/
/*
- * Copyright (C) 2000 - 2006, R. Byron Moore
+ * Copyright (C) 2000 - 2007, R. Byron Moore
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* POSSIBILITY OF SUCH DAMAGES.
*/
-#include <linux/module.h>
-
#include <acpi/acpi.h>
#include <acpi/acnamesp.h>
#include <acpi/acinterp.h>
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsxfeval")
+#ifdef ACPI_FUTURE_USAGE
/*******************************************************************************
*
* FUNCTION: acpi_evaluate_object_typed
* be valid (non-null)
*
******************************************************************************/
-#ifdef ACPI_FUTURE_USAGE
acpi_status
acpi_evaluate_object_typed(acpi_handle handle,
acpi_string pathname,
- struct acpi_object_list *external_params,
- struct acpi_buffer *return_buffer,
+ struct acpi_object_list * external_params,
+ struct acpi_buffer * return_buffer,
acpi_object_type return_type)
{
acpi_status status;
u8 must_free = FALSE;
- ACPI_FUNCTION_TRACE("acpi_evaluate_object_typed");
+ ACPI_FUNCTION_TRACE(acpi_evaluate_object_typed);
/* Return buffer must be valid */
/* Caller used ACPI_ALLOCATE_BUFFER, free the return buffer */
- acpi_os_free(return_buffer->pointer);
+ ACPI_FREE(return_buffer->pointer);
return_buffer->pointer = NULL;
}
return_buffer->length = 0;
return_ACPI_STATUS(AE_TYPE);
}
+
+ACPI_EXPORT_SYMBOL(acpi_evaluate_object_typed)
#endif /* ACPI_FUTURE_USAGE */
/*******************************************************************************
* be valid (non-null)
*
******************************************************************************/
-
acpi_status
acpi_evaluate_object(acpi_handle handle,
acpi_string pathname,
struct acpi_buffer *return_buffer)
{
acpi_status status;
- acpi_status status2;
- struct acpi_parameter_info info;
+ struct acpi_evaluate_info *info;
acpi_size buffer_space_needed;
u32 i;
- ACPI_FUNCTION_TRACE("acpi_evaluate_object");
+ ACPI_FUNCTION_TRACE(acpi_evaluate_object);
+
+ /* Allocate and initialize the evaluation information block */
+
+ info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+ if (!info) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ info->pathname = pathname;
+ info->parameter_type = ACPI_PARAM_ARGS;
- info.node = handle;
- info.parameters = NULL;
- info.return_object = NULL;
- info.parameter_type = ACPI_PARAM_ARGS;
+ /* Convert and validate the device handle */
+
+ info->prefix_node = acpi_ns_map_handle_to_node(handle);
+ if (!info->prefix_node) {
+ status = AE_BAD_PARAMETER;
+ goto cleanup;
+ }
/*
- * If there are parameters to be passed to the object
- * (which must be a control method), the external objects
- * must be converted to internal objects
+ * If there are parameters to be passed to a control method, the external
+ * objects must all be converted to internal objects
*/
if (external_params && external_params->count) {
/*
* Allocate a new parameter block for the internal objects
* Add 1 to count to allow for null terminated internal list
*/
- info.parameters = ACPI_MEM_CALLOCATE(((acpi_size)
- external_params->count +
- 1) * sizeof(void *));
- if (!info.parameters) {
- return_ACPI_STATUS(AE_NO_MEMORY);
+ info->parameters = ACPI_ALLOCATE_ZEROED(((acpi_size)
+ external_params->
+ count +
+ 1) * sizeof(void *));
+ if (!info->parameters) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
}
- /*
- * Convert each external object in the list to an
- * internal object
- */
+ /* Convert each external object in the list to an internal object */
+
for (i = 0; i < external_params->count; i++) {
status =
acpi_ut_copy_eobject_to_iobject(&external_params->
pointer[i],
- &info.
+ &info->
parameters[i]);
if (ACPI_FAILURE(status)) {
- acpi_ut_delete_internal_object_list(info.
- parameters);
- return_ACPI_STATUS(status);
+ goto cleanup;
}
}
- info.parameters[external_params->count] = NULL;
+ info->parameters[external_params->count] = NULL;
}
/*
/* The path is fully qualified, just evaluate by name */
- status = acpi_ns_evaluate_by_name(pathname, &info);
+ info->prefix_node = NULL;
+ status = acpi_ns_evaluate(info);
} else if (!handle) {
/*
- * A handle is optional iff a fully qualified pathname
- * is specified. Since we've already handled fully
- * qualified names above, this is an error
+ * A handle is optional iff a fully qualified pathname is specified.
+ * Since we've already handled fully qualified names above, this is
+ * an error
*/
if (!pathname) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
status = AE_BAD_PARAMETER;
} else {
- /*
- * We get here if we have a handle -- and if we have a
- * pathname it is relative. The handle will be validated
- * in the lower procedures
- */
- if (!pathname) {
- /*
- * The null pathname case means the handle is for
- * the actual object to be evaluated
- */
- status = acpi_ns_evaluate_by_handle(&info);
- } else {
- /* Both a Handle and a relative Pathname */
+ /* We have a namespace a node and a possible relative path */
- status = acpi_ns_evaluate_relative(pathname, &info);
- }
+ status = acpi_ns_evaluate(info);
}
/*
* copy the return value to an external object.
*/
if (return_buffer) {
- if (!info.return_object) {
+ if (!info->return_object) {
return_buffer->length = 0;
} else {
- if (ACPI_GET_DESCRIPTOR_TYPE(info.return_object) ==
+ if (ACPI_GET_DESCRIPTOR_TYPE(info->return_object) ==
ACPI_DESC_TYPE_NAMED) {
/*
* If we received a NS Node as a return object, this means that
* support for various types at a later date if necessary.
*/
status = AE_TYPE;
- info.return_object = NULL; /* No need to delete a NS Node */
+ info->return_object = NULL; /* No need to delete a NS Node */
return_buffer->length = 0;
}
if (ACPI_SUCCESS(status)) {
- /*
- * Find out how large a buffer is needed
- * to contain the returned object
- */
+
+ /* Get the size of the returned object */
+
status =
- acpi_ut_get_object_size(info.return_object,
+ acpi_ut_get_object_size(info->return_object,
&buffer_space_needed);
if (ACPI_SUCCESS(status)) {
status =
acpi_ut_copy_iobject_to_eobject
- (info.return_object,
+ (info->return_object,
return_buffer);
}
}
}
}
- if (info.return_object) {
+ if (info->return_object) {
/*
- * Delete the internal return object. NOTE: Interpreter
- * must be locked to avoid race condition.
+ * Delete the internal return object. NOTE: Interpreter must be
+ * locked to avoid race condition.
*/
- status2 = acpi_ex_enter_interpreter();
- if (ACPI_SUCCESS(status2)) {
- /*
- * Delete the internal return object. (Or at least
- * decrement the reference count by one)
- */
- acpi_ut_remove_reference(info.return_object);
- acpi_ex_exit_interpreter();
- }
+ acpi_ex_enter_interpreter();
+
+ /* Remove one reference on the return object (should delete it) */
+
+ acpi_ut_remove_reference(info->return_object);
+ acpi_ex_exit_interpreter();
}
+ cleanup:
+
/* Free the input parameter list (if we created one) */
- if (info.parameters) {
+ if (info->parameters) {
/* Free the allocated parameter block */
- acpi_ut_delete_internal_object_list(info.parameters);
+ acpi_ut_delete_internal_object_list(info->parameters);
}
+ ACPI_FREE(info);
return_ACPI_STATUS(status);
}
-EXPORT_SYMBOL(acpi_evaluate_object);
+ACPI_EXPORT_SYMBOL(acpi_evaluate_object)
/*******************************************************************************
*
* function, etc.
*
******************************************************************************/
-
acpi_status
acpi_walk_namespace(acpi_object_type type,
acpi_handle start_object,
{
acpi_status status;
- ACPI_FUNCTION_TRACE("acpi_walk_namespace");
+ ACPI_FUNCTION_TRACE(acpi_walk_namespace);
/* Parameter validation */
return_ACPI_STATUS(status);
}
-EXPORT_SYMBOL(acpi_walk_namespace);
+ACPI_EXPORT_SYMBOL(acpi_walk_namespace)
/*******************************************************************************
*
* on that.
*
******************************************************************************/
-
static acpi_status
acpi_ns_get_device_callback(acpi_handle obj_handle,
u32 nesting_level,
sizeof(struct
acpi_compatible_id)) !=
0) {
- ACPI_MEM_FREE(cid);
+ ACPI_FREE(cid);
return (AE_OK);
}
}
- ACPI_MEM_FREE(cid);
+ ACPI_FREE(cid);
}
}
acpi_status status;
struct acpi_get_devices_info info;
- ACPI_FUNCTION_TRACE("acpi_get_devices");
+ ACPI_FUNCTION_TRACE(acpi_get_devices);
/* Parameter validation */
return_ACPI_STATUS(status);
}
-EXPORT_SYMBOL(acpi_get_devices);
+ACPI_EXPORT_SYMBOL(acpi_get_devices)
/*******************************************************************************
*
* DESCRIPTION: Attach arbitrary data and handler to a namespace node.
*
******************************************************************************/
-
acpi_status
acpi_attach_data(acpi_handle obj_handle,
acpi_object_handler handler, void *data)
return (status);
}
+ACPI_EXPORT_SYMBOL(acpi_attach_data)
+
/*******************************************************************************
*
* FUNCTION: acpi_detach_data
* DESCRIPTION: Remove data that was previously attached to a node.
*
******************************************************************************/
-
acpi_status
acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler)
{
return (status);
}
+ACPI_EXPORT_SYMBOL(acpi_detach_data)
+
/*******************************************************************************
*
* FUNCTION: acpi_get_data
* DESCRIPTION: Retrieve data that was previously attached to a namespace node.
*
******************************************************************************/
-
acpi_status
acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data)
{
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
return (status);
}
+
+ACPI_EXPORT_SYMBOL(acpi_get_data)
projects / ~andy / linux / blobdiff