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Diffstat (limited to 'drivers/acpi/namespace/nsinit.c')
-rw-r--r--drivers/acpi/namespace/nsinit.c105
1 files changed, 56 insertions, 49 deletions
diff --git a/drivers/acpi/namespace/nsinit.c b/drivers/acpi/namespace/nsinit.c
index 0a08d2f04a06..9f929e479fd8 100644
--- a/drivers/acpi/namespace/nsinit.c
+++ b/drivers/acpi/namespace/nsinit.c
@@ -5,7 +5,7 @@
*****************************************************************************/
/*
- * 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
@@ -93,8 +93,7 @@ acpi_status acpi_ns_initialize_objects(void)
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)));
+ ACPI_EXCEPTION((AE_INFO, status, "During walk_namespace"));
}
ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
@@ -159,12 +158,11 @@ acpi_status acpi_ns_initialize_devices(void)
(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)));
+ 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",
+ "\n%hd Devices found - executed %hd _STA, %hd _INI methods\n",
info.device_count, info.num_STA, info.num_INI));
return_ACPI_STATUS(status);
@@ -289,12 +287,10 @@ acpi_ns_init_one_object(acpi_handle obj_handle,
}
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)));
+ 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)));
}
/*
@@ -336,23 +332,22 @@ acpi_ns_init_one_device(acpi_handle obj_handle,
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");
- pinfo.parameters = NULL;
- pinfo.parameter_type = ACPI_PARAM_ARGS;
-
- pinfo.node = acpi_ns_map_handle_to_node(obj_handle);
- if (!pinfo.node) {
+ 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)) {
+ if ((device_node->type != ACPI_TYPE_DEVICE) &&
+ (device_node->type != ACPI_TYPE_PROCESSOR) &&
+ (device_node->type != ACPI_TYPE_THERMAL)) {
return_ACPI_STATUS(AE_OK);
}
@@ -364,57 +359,69 @@ acpi_ns_init_one_device(acpi_handle obj_handle,
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
+ */
+ 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 */
+
+ 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,
- pinfo.node,
+ device_node,
METHOD_NAME__STA));
- status = acpi_ut_execute_STA(pinfo.node, &flags);
+ 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)) {
- if (pinfo.node->type == ACPI_TYPE_DEVICE) {
- /* Ignore error and move on to next device */
+ /* Ignore error and move on to next device */
- return_ACPI_STATUS(AE_OK);
- }
+ return_ACPI_STATUS(AE_OK);
+ }
- /* _STA is not required for Processor or thermal_zone objects */
- } 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,
METHOD_NAME__INI));
- status = acpi_ns_evaluate_relative(METHOD_NAME__INI, &pinfo);
- if (ACPI_FAILURE(status)) {
- /* No _INI (AE_NOT_FOUND) means device requires no initialization */
- 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 {
/* Delete any return object (especially if implicit_return is enabled) */
@@ -434,5 +441,5 @@ acpi_ns_init_one_device(acpi_handle obj_handle,
acpi_gbl_init_handler(pinfo.node, ACPI_INIT_DEVICE_INI);
}
- return_ACPI_STATUS(status);
+ return_ACPI_STATUS(AE_OK);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 13:08:13 +0100