*****************************************************************************/
/*
- * 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/acnamesp.h>
#include <acpi/acdispat.h>
#include <acpi/acinterp.h>
#define _COMPONENT ACPI_NAMESPACE
- ACPI_MODULE_NAME ("nsinit")
+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);
/*******************************************************************************
*
*
******************************************************************************/
-acpi_status
-acpi_ns_initialize_objects (
- void)
+acpi_status acpi_ns_initialize_objects(void)
{
- acpi_status status;
- struct acpi_init_walk_info info;
-
-
- ACPI_FUNCTION_TRACE ("ns_initialize_objects");
+ 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:"));
+ 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));
+ 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_DEBUG_PRINT ((ACPI_DB_ERROR, "walk_namespace failed! %s\n",
- acpi_format_exception (status)));
+ 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 walk_namespace"));
}
- 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_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));
+ 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);
+ return_ACPI_STATUS(AE_OK);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_initialize_devices
*
******************************************************************************/
-acpi_status
-acpi_ns_initialize_devices (
- void)
+acpi_status acpi_ns_initialize_devices(void)
{
- acpi_status status;
- struct acpi_device_walk_info info;
-
-
- ACPI_FUNCTION_TRACE ("ns_initialize_devices");
+ acpi_status status;
+ struct acpi_device_walk_info info;
+ ACPI_FUNCTION_TRACE("ns_initialize_devices");
/* Init counters */
info.num_STA = 0;
info.num_INI = 0;
- ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
- "Executing all Device _STA and_INI methods:"));
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
+ "Executing all Device _STA and_INI methods:"));
- 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);
}
/* Walk namespace for all objects */
- status = acpi_ns_walk_namespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
- ACPI_UINT32_MAX, TRUE, acpi_ns_init_one_device, &info, NULL);
+ status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+ ACPI_UINT32_MAX, TRUE,
+ acpi_ns_init_one_device, &info, NULL);
- (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_ERROR, "walk_namespace failed! %s\n",
- acpi_format_exception (status)));
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status, "During walk_namespace"));
}
- ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
- "\n%hd Devices found containing: %hd _STA, %hd _INI methods\n",
- info.device_count, info.num_STA, info.num_INI));
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
+ "\n%hd Devices found - executed %hd _STA, %hd _INI methods\n",
+ info.device_count, info.num_STA, info.num_INI));
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_init_one_object
*
******************************************************************************/
-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_object(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value)
{
- acpi_object_type type;
- acpi_status status;
- 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");
+ acpi_object_type type;
+ acpi_status status;
+ 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);
+ type = acpi_ns_get_type(obj_handle);
+ obj_desc = acpi_ns_get_attached_object(node);
if (!obj_desc) {
return (AE_OK);
}
/*
* Must lock the interpreter before executing AML code
*/
- status = acpi_ex_enter_interpreter ();
- if (ACPI_FAILURE (status)) {
+ status = acpi_ex_enter_interpreter();
+ if (ACPI_FAILURE(status)) {
return (status);
}
case ACPI_TYPE_REGION:
info->op_region_init++;
- status = acpi_ds_get_region_arguments (obj_desc);
+ 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);
+ status = acpi_ds_get_buffer_field_arguments(obj_desc);
break;
case ACPI_TYPE_BUFFER:
info->buffer_init++;
- status = acpi_ds_get_buffer_arguments (obj_desc);
+ status = acpi_ds_get_buffer_arguments(obj_desc);
break;
case ACPI_TYPE_PACKAGE:
info->package_init++;
- status = acpi_ds_get_package_arguments (obj_desc);
+ status = acpi_ds_get_package_arguments(obj_desc);
break;
default:
break;
}
- if (ACPI_FAILURE (status)) {
- ACPI_DEBUG_PRINT_RAW ((ACPI_DB_ERROR, "\n"));
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
- "Could not execute arguments for [%4.4s] (%s), %s\n",
- acpi_ut_get_node_name (node), acpi_ut_get_type_name (type),
- acpi_format_exception (status)));
+ 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)));
}
/*
* pathname
*/
if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) {
- ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "."));
+ 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 ();
+ acpi_ex_exit_interpreter();
return (AE_OK);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_init_one_device
*
******************************************************************************/
-acpi_status
-acpi_ns_init_one_device (
- acpi_handle obj_handle,
- u32 nesting_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)
{
- struct acpi_device_walk_info *info = (struct acpi_device_walk_info *) context;
- struct acpi_parameter_info pinfo;
- u32 flags;
- acpi_status status;
-
-
- ACPI_FUNCTION_TRACE ("ns_init_one_device");
-
-
- pinfo.parameters = NULL;
- pinfo.parameter_type = ACPI_PARAM_ARGS;
-
- pinfo.node = acpi_ns_map_handle_to_node (obj_handle);
- if (!pinfo.node) {
- return_ACPI_STATUS (AE_BAD_PARAMETER);
+ struct acpi_device_walk_info *info =
+ (struct acpi_device_walk_info *)context;
+ struct acpi_parameter_info pinfo;
+ u32 flags;
+ acpi_status status;
+ struct acpi_namespace_node *ini_node;
+ struct acpi_namespace_node *device_node;
+
+ ACPI_FUNCTION_TRACE("ns_init_one_device");
+
+ device_node = acpi_ns_map_handle_to_node(obj_handle);
+ if (!device_node) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
}
/*
* We will run _STA/_INI on Devices, Processors and thermal_zones only
*/
- if ((pinfo.node->type != ACPI_TYPE_DEVICE) &&
- (pinfo.node->type != ACPI_TYPE_PROCESSOR) &&
- (pinfo.node->type != ACPI_TYPE_THERMAL)) {
- return_ACPI_STATUS (AE_OK);
+ if ((device_node->type != ACPI_TYPE_DEVICE) &&
+ (device_node->type != ACPI_TYPE_PROCESSOR) &&
+ (device_node->type != ACPI_TYPE_THERMAL)) {
+ return_ACPI_STATUS(AE_OK);
}
if ((acpi_dbg_level <= ACPI_LV_ALL_EXCEPTIONS) &&
- (!(acpi_dbg_level & ACPI_LV_INFO))) {
- ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "."));
+ (!(acpi_dbg_level & ACPI_LV_INFO))) {
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
}
info->device_count++;
/*
- * Run _STA to determine if we can run _INI on the device.
+ * Check if the _INI method exists for this device -
+ * if _INI does not exist, there is no need to run _STA
+ * No _INI means device requires no initialization
*/
- ACPI_DEBUG_EXEC (acpi_ut_display_init_pathname (ACPI_TYPE_METHOD, pinfo.node, "_STA"));
- status = acpi_ut_execute_STA (pinfo.node, &flags);
+ status = acpi_ns_search_node(*ACPI_CAST_PTR(u32, METHOD_NAME__INI),
+ device_node, ACPI_TYPE_METHOD, &ini_node);
+ if (ACPI_FAILURE(status)) {
+ /* No _INI method found - move on to next device */
- if (ACPI_FAILURE (status)) {
- if (pinfo.node->type == ACPI_TYPE_DEVICE) {
- /* Ignore error and move on to next device */
+ return_ACPI_STATUS(AE_OK);
+ }
- return_ACPI_STATUS (AE_OK);
- }
+ /*
+ * Run _STA to determine if we can run _INI on the device -
+ * the device must be present before _INI can be run.
+ * However, _STA is not required - assume device present if no _STA
+ */
+ ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname(ACPI_TYPE_METHOD,
+ device_node,
+ METHOD_NAME__STA));
+
+ pinfo.node = device_node;
+ pinfo.parameters = NULL;
+ pinfo.parameter_type = ACPI_PARAM_ARGS;
+
+ status = acpi_ut_execute_STA(pinfo.node, &flags);
+ if (ACPI_FAILURE(status)) {
+ /* Ignore error and move on to next device */
- /* _STA is not required for Processor or thermal_zone objects */
+ return_ACPI_STATUS(AE_OK);
}
- else {
+
+ if (flags != ACPI_UINT32_MAX) {
info->num_STA++;
+ }
- if (!(flags & 0x01)) {
- /* Don't look at children of a not present device */
+ if (!(flags & ACPI_STA_DEVICE_PRESENT)) {
+ /* Don't look at children of a not present device */
- return_ACPI_STATUS(AE_CTRL_DEPTH);
- }
+ return_ACPI_STATUS(AE_CTRL_DEPTH);
}
/*
- * The device is present. Run _INI.
+ * The device is present and _INI exists. Run the _INI method.
+ * (We already have the _INI node from above)
*/
- ACPI_DEBUG_EXEC (acpi_ut_display_init_pathname (ACPI_TYPE_METHOD, pinfo.node, "_INI"));
- status = acpi_ns_evaluate_relative ("_INI", &pinfo);
- if (ACPI_FAILURE (status)) {
- /* No _INI (AE_NOT_FOUND) means device requires no initialization */
+ ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname(ACPI_TYPE_METHOD,
+ pinfo.node,
+ METHOD_NAME__INI));
- if (status != AE_NOT_FOUND) {
- /* Ignore error and move on to next device */
+ pinfo.node = ini_node;
+ status = acpi_ns_evaluate_by_handle(&pinfo);
+ if (ACPI_FAILURE(status)) {
+ /* Ignore error and move on to next device */
#ifdef ACPI_DEBUG_OUTPUT
- char *scope_name = acpi_ns_get_external_pathname (pinfo.node);
+ char *scope_name = acpi_ns_get_external_pathname(ini_node);
- ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "%s._INI failed: %s\n",
- scope_name, acpi_format_exception (status)));
+ ACPI_WARNING((AE_INFO, "%s._INI failed: %s",
+ scope_name, acpi_format_exception(status)));
- ACPI_MEM_FREE (scope_name);
+ ACPI_MEM_FREE(scope_name);
#endif
- }
-
- status = AE_OK;
- }
- else {
+ } else {
/* Delete any return object (especially if implicit_return is enabled) */
if (pinfo.return_object) {
- acpi_ut_remove_reference (pinfo.return_object);
+ acpi_ut_remove_reference(pinfo.return_object);
}
/* Count of successful INIs */
if (acpi_gbl_init_handler) {
/* External initialization handler is present, call it */
- status = acpi_gbl_init_handler (pinfo.node, ACPI_INIT_DEVICE_INI);
+ status =
+ acpi_gbl_init_handler(pinfo.node, ACPI_INIT_DEVICE_INI);
}
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(AE_OK);
}
git://git.onelab.eu / linux-2.6.git / blobdiff