You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
231 lines
7.3 KiB
231 lines
7.3 KiB
/******************************************************************************
|
|
*
|
|
* Module Name: dsinit - Object initialization namespace walk
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/*
|
|
* Copyright (C) 2000 - 2006, R. Byron Moore
|
|
* 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 <acpi/acdispat.h>
|
|
#include <acpi/acnamesp.h>
|
|
|
|
#define _COMPONENT ACPI_DISPATCHER
|
|
ACPI_MODULE_NAME("dsinit")
|
|
|
|
/* Local prototypes */
|
|
static acpi_status
|
|
acpi_ds_init_one_object(acpi_handle obj_handle,
|
|
u32 level, void *context, void **return_value);
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ds_init_one_object
|
|
*
|
|
* PARAMETERS: obj_handle - Node for the object
|
|
* Level - Current nesting level
|
|
* Context - Points to a init info struct
|
|
* return_value - Not used
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Callback from acpi_walk_namespace. Invoked for every object
|
|
* within the namespace.
|
|
*
|
|
* Currently, the only objects that require initialization are:
|
|
* 1) Methods
|
|
* 2) Operation Regions
|
|
*
|
|
******************************************************************************/
|
|
|
|
static acpi_status
|
|
acpi_ds_init_one_object(acpi_handle obj_handle,
|
|
u32 level, void *context, void **return_value)
|
|
{
|
|
struct acpi_init_walk_info *info =
|
|
(struct acpi_init_walk_info *)context;
|
|
struct acpi_namespace_node *node =
|
|
(struct acpi_namespace_node *)obj_handle;
|
|
acpi_object_type type;
|
|
acpi_status status;
|
|
|
|
ACPI_FUNCTION_ENTRY();
|
|
|
|
/*
|
|
* We are only interested in NS nodes owned by the table that
|
|
* was just loaded
|
|
*/
|
|
if (node->owner_id != info->table_desc->owner_id) {
|
|
return (AE_OK);
|
|
}
|
|
|
|
info->object_count++;
|
|
|
|
/* And even then, we are only interested in a few object types */
|
|
|
|
type = acpi_ns_get_type(obj_handle);
|
|
|
|
switch (type) {
|
|
case ACPI_TYPE_REGION:
|
|
|
|
status = acpi_ds_initialize_region(obj_handle);
|
|
if (ACPI_FAILURE(status)) {
|
|
ACPI_EXCEPTION((AE_INFO, status,
|
|
"During Region initialization %p [%4.4s]",
|
|
obj_handle,
|
|
acpi_ut_get_node_name(obj_handle)));
|
|
}
|
|
|
|
info->op_region_count++;
|
|
break;
|
|
|
|
case ACPI_TYPE_METHOD:
|
|
|
|
/*
|
|
* Set the execution data width (32 or 64) based upon the
|
|
* revision number of the parent ACPI table.
|
|
* TBD: This is really for possible future support of integer width
|
|
* on a per-table basis. Currently, we just use a global for the width.
|
|
*/
|
|
if (info->table_desc->pointer->revision == 1) {
|
|
node->flags |= ANOBJ_DATA_WIDTH_32;
|
|
}
|
|
#ifdef ACPI_INIT_PARSE_METHODS
|
|
/*
|
|
* Note 11/2005: Removed this code to parse all methods during table
|
|
* load because it causes problems if there are any errors during the
|
|
* parse. Also, it seems like overkill and we probably don't want to
|
|
* abort a table load because of an issue with a single method.
|
|
*/
|
|
|
|
/*
|
|
* Print a dot for each method unless we are going to print
|
|
* the entire pathname
|
|
*/
|
|
if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) {
|
|
ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
|
|
}
|
|
|
|
/*
|
|
* Always parse methods to detect errors, we will delete
|
|
* the parse tree below
|
|
*/
|
|
status = acpi_ds_parse_method(obj_handle);
|
|
if (ACPI_FAILURE(status)) {
|
|
ACPI_ERROR((AE_INFO,
|
|
"Method %p [%4.4s] - parse failure, %s",
|
|
obj_handle,
|
|
acpi_ut_get_node_name(obj_handle),
|
|
acpi_format_exception(status)));
|
|
|
|
/* This parse failed, but we will continue parsing more methods */
|
|
}
|
|
#endif
|
|
info->method_count++;
|
|
break;
|
|
|
|
case ACPI_TYPE_DEVICE:
|
|
|
|
info->device_count++;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* We ignore errors from above, and always return OK, since
|
|
* we don't want to abort the walk on a single error.
|
|
*/
|
|
return (AE_OK);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ds_initialize_objects
|
|
*
|
|
* PARAMETERS: table_desc - Descriptor for parent ACPI table
|
|
* start_node - Root of subtree to be initialized.
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Walk the namespace starting at "start_node" and perform any
|
|
* necessary initialization on the objects found therein
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_ds_initialize_objects(struct acpi_table_desc * table_desc,
|
|
struct acpi_namespace_node * start_node)
|
|
{
|
|
acpi_status status;
|
|
struct acpi_init_walk_info info;
|
|
|
|
ACPI_FUNCTION_TRACE("ds_initialize_objects");
|
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
|
|
"**** Starting initialization of namespace objects ****\n"));
|
|
ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "Parsing all Control Methods:"));
|
|
|
|
info.method_count = 0;
|
|
info.op_region_count = 0;
|
|
info.object_count = 0;
|
|
info.device_count = 0;
|
|
info.table_desc = table_desc;
|
|
|
|
/* Walk entire namespace from the supplied root */
|
|
|
|
status = acpi_walk_namespace(ACPI_TYPE_ANY, start_node, ACPI_UINT32_MAX,
|
|
acpi_ds_init_one_object, &info, NULL);
|
|
if (ACPI_FAILURE(status)) {
|
|
ACPI_EXCEPTION((AE_INFO, status, "During walk_namespace"));
|
|
}
|
|
|
|
ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
|
|
"\nTable [%4.4s](id %4.4X) - %hd Objects with %hd Devices %hd Methods %hd Regions\n",
|
|
table_desc->pointer->signature,
|
|
table_desc->owner_id, info.object_count,
|
|
info.device_count, info.method_count,
|
|
info.op_region_count));
|
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
|
|
"%hd Methods, %hd Regions\n", info.method_count,
|
|
info.op_region_count));
|
|
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|