summaryrefslogtreecommitdiff
path: root/drivers/acpi/namespace/nsinit.c
diff options
context:
space:
mode:
authorLen Brown <len.brown@intel.com>2009-01-09 00:13:17 -0500
committerLen Brown <len.brown@intel.com>2009-01-09 03:30:47 -0500
commit95b482a8d31116f3f5c2a5089569393234d06385 (patch)
treef32aec8673a285a9d188948be97af3034ee06e93 /drivers/acpi/namespace/nsinit.c
parent6620e0c49f577454b772fb381543d60ae53eb885 (diff)
ACPICA: create acpica/ directory
also, delete sleep/ and delete ACPI_CFLAGS from Makefile Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/namespace/nsinit.c')
-rw-r--r--drivers/acpi/namespace/nsinit.c593
1 files changed, 0 insertions, 593 deletions
diff --git a/drivers/acpi/namespace/nsinit.c b/drivers/acpi/namespace/nsinit.c
deleted file mode 100644
index fe470c4b38f..00000000000
--- a/drivers/acpi/namespace/nsinit.c
+++ /dev/null
@@ -1,593 +0,0 @@
-/******************************************************************************
- *
- * Module Name: nsinit - namespace initialization
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, 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 <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <linux/nmi.h>
-
-#define _COMPONENT ACPI_NAMESPACE
-ACPI_MODULE_NAME("nsinit")
-
-/* Local prototypes */
-static acpi_status
-acpi_ns_init_one_object(acpi_handle obj_handle,
- u32 level, void *context, void **return_value);
-
-static acpi_status
-acpi_ns_init_one_device(acpi_handle obj_handle,
- u32 nesting_level, void *context, void **return_value);
-
-static acpi_status
-acpi_ns_find_ini_methods(acpi_handle obj_handle,
- u32 nesting_level, void *context, void **return_value);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_initialize_objects
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Walk the entire namespace and perform any necessary
- * initialization on the objects found therein
- *
- ******************************************************************************/
-
-acpi_status acpi_ns_initialize_objects(void)
-{
- acpi_status status;
- struct acpi_init_walk_info info;
-
- ACPI_FUNCTION_TRACE(ns_initialize_objects);
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "**** Starting initialization of namespace objects ****\n"));
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
- "Completing Region/Field/Buffer/Package initialization:"));
-
- /* Set all init info to zero */
-
- ACPI_MEMSET(&info, 0, sizeof(struct acpi_init_walk_info));
-
- /* Walk entire namespace from the supplied root */
-
- status = acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
- ACPI_UINT32_MAX, acpi_ns_init_one_object,
- &info, NULL);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace"));
- }
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
- "\nInitialized %hd/%hd Regions %hd/%hd Fields %hd/%hd Buffers %hd/%hd Packages (%hd nodes)\n",
- info.op_region_init, info.op_region_count,
- info.field_init, info.field_count,
- info.buffer_init, info.buffer_count,
- info.package_init, info.package_count,
- info.object_count));
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "%hd Control Methods found\n", info.method_count));
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "%hd Op Regions found\n", info.op_region_count));
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_initialize_devices
- *
- * PARAMETERS: None
- *
- * RETURN: acpi_status
- *
- * DESCRIPTION: Walk the entire namespace and initialize all ACPI devices.
- * This means running _INI on all present devices.
- *
- * Note: We install PCI config space handler on region access,
- * not here.
- *
- ******************************************************************************/
-
-acpi_status acpi_ns_initialize_devices(void)
-{
- acpi_status status;
- struct acpi_device_walk_info info;
-
- ACPI_FUNCTION_TRACE(ns_initialize_devices);
-
- /* Init counters */
-
- info.device_count = 0;
- info.num_STA = 0;
- info.num_INI = 0;
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
- "Initializing Device/Processor/Thermal objects by executing _INI methods:"));
-
- /* Tree analysis: find all subtrees that contain _INI methods */
-
- status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
- ACPI_UINT32_MAX, FALSE,
- acpi_ns_find_ini_methods, &info, NULL);
- if (ACPI_FAILURE(status)) {
- goto error_exit;
- }
-
- /* Allocate the evaluation information block */
-
- info.evaluate_info =
- ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
- if (!info.evaluate_info) {
- status = AE_NO_MEMORY;
- goto error_exit;
- }
-
- /* Walk namespace to execute all _INIs on present devices */
-
- status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
- ACPI_UINT32_MAX, FALSE,
- acpi_ns_init_one_device, &info, NULL);
-
- ACPI_FREE(info.evaluate_info);
- if (ACPI_FAILURE(status)) {
- goto error_exit;
- }
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
- "\nExecuted %hd _INI methods requiring %hd _STA executions (examined %hd objects)\n",
- info.num_INI, info.num_STA, info.device_count));
-
- return_ACPI_STATUS(status);
-
- error_exit:
- ACPI_EXCEPTION((AE_INFO, status, "During device initialization"));
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_init_one_object
- *
- * PARAMETERS: obj_handle - Node
- * 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) Op Regions
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ns_init_one_object(acpi_handle obj_handle,
- u32 level, void *context, void **return_value)
-{
- acpi_object_type type;
- acpi_status status = AE_OK;
- struct acpi_init_walk_info *info =
- (struct acpi_init_walk_info *)context;
- struct acpi_namespace_node *node =
- (struct acpi_namespace_node *)obj_handle;
- union acpi_operand_object *obj_desc;
-
- ACPI_FUNCTION_NAME(ns_init_one_object);
-
- info->object_count++;
-
- /* And even then, we are only interested in a few object types */
-
- type = acpi_ns_get_type(obj_handle);
- obj_desc = acpi_ns_get_attached_object(node);
- if (!obj_desc) {
- return (AE_OK);
- }
-
- /* Increment counters for object types we are looking for */
-
- switch (type) {
- case ACPI_TYPE_REGION:
- info->op_region_count++;
- break;
-
- case ACPI_TYPE_BUFFER_FIELD:
- info->field_count++;
- break;
-
- case ACPI_TYPE_LOCAL_BANK_FIELD:
- info->field_count++;
- break;
-
- case ACPI_TYPE_BUFFER:
- info->buffer_count++;
- break;
-
- case ACPI_TYPE_PACKAGE:
- info->package_count++;
- break;
-
- default:
-
- /* No init required, just exit now */
- return (AE_OK);
- }
-
- /*
- * If the object is already initialized, nothing else to do
- */
- if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
- return (AE_OK);
- }
-
- /*
- * Must lock the interpreter before executing AML code
- */
- acpi_ex_enter_interpreter();
-
- /*
- * Each of these types can contain executable AML code within the
- * declaration.
- */
- switch (type) {
- case ACPI_TYPE_REGION:
-
- info->op_region_init++;
- status = acpi_ds_get_region_arguments(obj_desc);
- break;
-
- case ACPI_TYPE_BUFFER_FIELD:
-
- info->field_init++;
- status = acpi_ds_get_buffer_field_arguments(obj_desc);
- break;
-
- case ACPI_TYPE_LOCAL_BANK_FIELD:
-
- info->field_init++;
- status = acpi_ds_get_bank_field_arguments(obj_desc);
- break;
-
- case ACPI_TYPE_BUFFER:
-
- info->buffer_init++;
- status = acpi_ds_get_buffer_arguments(obj_desc);
- break;
-
- case ACPI_TYPE_PACKAGE:
-
- info->package_init++;
- status = acpi_ds_get_package_arguments(obj_desc);
- break;
-
- default:
- /* No other types can get here */
- break;
- }
-
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Could not execute arguments for [%4.4s] (%s)",
- acpi_ut_get_node_name(node),
- acpi_ut_get_type_name(type)));
- }
-
- /*
- * Print a dot for each object unless we are going to print the entire
- * pathname
- */
- if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) {
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
- }
-
- /*
- * We ignore errors from above, and always return OK, since we don't want
- * to abort the walk on any single error.
- */
- acpi_ex_exit_interpreter();
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_find_ini_methods
- *
- * PARAMETERS: acpi_walk_callback
- *
- * RETURN: acpi_status
- *
- * DESCRIPTION: Called during namespace walk. Finds objects named _INI under
- * device/processor/thermal objects, and marks the entire subtree
- * with a SUBTREE_HAS_INI flag. This flag is used during the
- * subsequent device initialization walk to avoid entire subtrees
- * that do not contain an _INI.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ns_find_ini_methods(acpi_handle obj_handle,
- u32 nesting_level, void *context, void **return_value)
-{
- struct acpi_device_walk_info *info =
- ACPI_CAST_PTR(struct acpi_device_walk_info, context);
- struct acpi_namespace_node *node;
- struct acpi_namespace_node *parent_node;
-
- /* Keep count of device/processor/thermal objects */
-
- node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle);
- if ((node->type == ACPI_TYPE_DEVICE) ||
- (node->type == ACPI_TYPE_PROCESSOR) ||
- (node->type == ACPI_TYPE_THERMAL)) {
- info->device_count++;
- return (AE_OK);
- }
-
- /* We are only looking for methods named _INI */
-
- if (!ACPI_COMPARE_NAME(node->name.ascii, METHOD_NAME__INI)) {
- return (AE_OK);
- }
-
- /*
- * The only _INI methods that we care about are those that are
- * present under Device, Processor, and Thermal objects.
- */
- parent_node = acpi_ns_get_parent_node(node);
- switch (parent_node->type) {
- case ACPI_TYPE_DEVICE:
- case ACPI_TYPE_PROCESSOR:
- case ACPI_TYPE_THERMAL:
-
- /* Mark parent and bubble up the INI present flag to the root */
-
- while (parent_node) {
- parent_node->flags |= ANOBJ_SUBTREE_HAS_INI;
- parent_node = acpi_ns_get_parent_node(parent_node);
- }
- break;
-
- default:
- break;
- }
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_init_one_device
- *
- * PARAMETERS: acpi_walk_callback
- *
- * RETURN: acpi_status
- *
- * DESCRIPTION: This is called once per device soon after ACPI is enabled
- * to initialize each device. It determines if the device is
- * present, and if so, calls _INI.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ns_init_one_device(acpi_handle obj_handle,
- u32 nesting_level, void *context, void **return_value)
-{
- struct acpi_device_walk_info *walk_info =
- ACPI_CAST_PTR(struct acpi_device_walk_info, context);
- struct acpi_evaluate_info *info = walk_info->evaluate_info;
- u32 flags;
- acpi_status status;
- struct acpi_namespace_node *device_node;
-
- ACPI_FUNCTION_TRACE(ns_init_one_device);
-
- /* We are interested in Devices, Processors and thermal_zones only */
-
- device_node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle);
- if ((device_node->type != ACPI_TYPE_DEVICE) &&
- (device_node->type != ACPI_TYPE_PROCESSOR) &&
- (device_node->type != ACPI_TYPE_THERMAL)) {
- return_ACPI_STATUS(AE_OK);
- }
-
- /*
- * Because of an earlier namespace analysis, all subtrees that contain an
- * _INI method are tagged.
- *
- * If this device subtree does not contain any _INI methods, we
- * can exit now and stop traversing this entire subtree.
- */
- if (!(device_node->flags & ANOBJ_SUBTREE_HAS_INI)) {
- return_ACPI_STATUS(AE_CTRL_DEPTH);
- }
-
- /*
- * Run _STA to determine if this device is present and functioning. We
- * must know this information for two important reasons (from ACPI spec):
- *
- * 1) We can only run _INI if the device is present.
- * 2) We must abort the device tree walk on this subtree if the device is
- * not present and is not functional (we will not examine the children)
- *
- * The _STA method is not required to be present under the device, we
- * assume the device is present if _STA does not exist.
- */
- ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
- (ACPI_TYPE_METHOD, device_node, METHOD_NAME__STA));
-
- status = acpi_ut_execute_STA(device_node, &flags);
- if (ACPI_FAILURE(status)) {
-
- /* Ignore error and move on to next device */
-
- return_ACPI_STATUS(AE_OK);
- }
-
- /*
- * Flags == -1 means that _STA was not found. In this case, we assume that
- * the device is both present and functional.
- *
- * From the ACPI spec, description of _STA:
- *
- * "If a device object (including the processor object) does not have an
- * _STA object, then OSPM assumes that all of the above bits are set (in
- * other words, the device is present, ..., and functioning)"
- */
- if (flags != ACPI_UINT32_MAX) {
- walk_info->num_STA++;
- }
-
- /*
- * Examine the PRESENT and FUNCTIONING status bits
- *
- * Note: ACPI spec does not seem to specify behavior for the present but
- * not functioning case, so we assume functioning if present.
- */
- if (!(flags & ACPI_STA_DEVICE_PRESENT)) {
-
- /* Device is not present, we must examine the Functioning bit */
-
- if (flags & ACPI_STA_DEVICE_FUNCTIONING) {
- /*
- * Device is not present but is "functioning". In this case,
- * we will not run _INI, but we continue to examine the children
- * of this device.
- *
- * From the ACPI spec, description of _STA: (Note - no mention
- * of whether to run _INI or not on the device in question)
- *
- * "_STA may return bit 0 clear (not present) with bit 3 set
- * (device is functional). This case is used to indicate a valid
- * device for which no device driver should be loaded (for example,
- * a bridge device.) Children of this device may be present and
- * valid. OSPM should continue enumeration below a device whose
- * _STA returns this bit combination"
- */
- return_ACPI_STATUS(AE_OK);
- } else {
- /*
- * Device is not present and is not functioning. We must abort the
- * walk of this subtree immediately -- don't look at the children
- * of such a device.
- *
- * From the ACPI spec, description of _INI:
- *
- * "If the _STA method indicates that the device is not present,
- * OSPM will not run the _INI and will not examine the children
- * of the device for _INI methods"
- */
- return_ACPI_STATUS(AE_CTRL_DEPTH);
- }
- }
-
- /*
- * The device is present or is assumed present if no _STA exists.
- * Run the _INI if it exists (not required to exist)
- *
- * Note: We know there is an _INI within this subtree, but it may not be
- * under this particular device, it may be lower in the branch.
- */
- ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
- (ACPI_TYPE_METHOD, device_node, METHOD_NAME__INI));
-
- info->prefix_node = device_node;
- info->pathname = METHOD_NAME__INI;
- info->parameters = NULL;
- info->flags = ACPI_IGNORE_RETURN_VALUE;
-
- /*
- * Some hardware relies on this being executed as atomically
- * as possible (without an NMI being received in the middle of
- * this) - so disable NMIs and initialize the device:
- */
- acpi_nmi_disable();
- status = acpi_ns_evaluate(info);
- acpi_nmi_enable();
-
- if (ACPI_SUCCESS(status)) {
- walk_info->num_INI++;
-
- if ((acpi_dbg_level <= ACPI_LV_ALL_EXCEPTIONS) &&
- (!(acpi_dbg_level & ACPI_LV_INFO))) {
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
- }
- }
-#ifdef ACPI_DEBUG_OUTPUT
- else if (status != AE_NOT_FOUND) {
-
- /* Ignore error and move on to next device */
-
- char *scope_name =
- acpi_ns_get_external_pathname(info->resolved_node);
-
- ACPI_EXCEPTION((AE_INFO, status, "during %s._INI execution",
- scope_name));
- ACPI_FREE(scope_name);
- }
-#endif
-
- /* Ignore errors from above */
-
- status = AE_OK;
-
- /*
- * The _INI method has been run if present; call the Global Initialization
- * Handler for this device.
- */
- if (acpi_gbl_init_handler) {
- status =
- acpi_gbl_init_handler(device_node, ACPI_INIT_DEVICE_INI);
- }
-
- return_ACPI_STATUS(status);
-}