diff options
Diffstat (limited to 'drivers/acpi/namespace/nsobject.c')
| -rw-r--r-- | drivers/acpi/namespace/nsobject.c | 209 |
1 files changed, 90 insertions, 119 deletions
diff --git a/drivers/acpi/namespace/nsobject.c b/drivers/acpi/namespace/nsobject.c index 27258c1ca4f1..fc9be946ebed 100644 --- a/drivers/acpi/namespace/nsobject.c +++ b/drivers/acpi/namespace/nsobject.c @@ -42,14 +42,11 @@ * POSSIBILITY OF SUCH DAMAGES. */ - #include <acpi/acpi.h> #include <acpi/acnamesp.h> - #define _COMPONENT ACPI_NAMESPACE - ACPI_MODULE_NAME ("nsobject") - +ACPI_MODULE_NAME("nsobject") /******************************************************************************* * @@ -71,20 +68,15 @@ * MUTEX: Assumes namespace is locked * ******************************************************************************/ - acpi_status -acpi_ns_attach_object ( - struct acpi_namespace_node *node, - union acpi_operand_object *object, - acpi_object_type type) +acpi_ns_attach_object(struct acpi_namespace_node *node, + union acpi_operand_object *object, acpi_object_type type) { - union acpi_operand_object *obj_desc; - union acpi_operand_object *last_obj_desc; - acpi_object_type object_type = ACPI_TYPE_ANY; - - - ACPI_FUNCTION_TRACE ("ns_attach_object"); + union acpi_operand_object *obj_desc; + union acpi_operand_object *last_obj_desc; + acpi_object_type object_type = ACPI_TYPE_ANY; + ACPI_FUNCTION_TRACE("ns_attach_object"); /* * Parameter validation @@ -92,40 +84,39 @@ acpi_ns_attach_object ( if (!node) { /* Invalid handle */ - ACPI_REPORT_ERROR (("ns_attach_object: Null named_obj handle\n")); - return_ACPI_STATUS (AE_BAD_PARAMETER); + ACPI_REPORT_ERROR(("ns_attach_object: Null named_obj handle\n")); + return_ACPI_STATUS(AE_BAD_PARAMETER); } if (!object && (ACPI_TYPE_ANY != type)) { /* Null object */ - ACPI_REPORT_ERROR (( - "ns_attach_object: Null object, but type not ACPI_TYPE_ANY\n")); - return_ACPI_STATUS (AE_BAD_PARAMETER); + ACPI_REPORT_ERROR(("ns_attach_object: Null object, but type not ACPI_TYPE_ANY\n")); + return_ACPI_STATUS(AE_BAD_PARAMETER); } - if (ACPI_GET_DESCRIPTOR_TYPE (node) != ACPI_DESC_TYPE_NAMED) { + if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) { /* Not a name handle */ - ACPI_REPORT_ERROR (("ns_attach_object: Invalid handle %p [%s]\n", - node, acpi_ut_get_descriptor_name (node))); - return_ACPI_STATUS (AE_BAD_PARAMETER); + ACPI_REPORT_ERROR(("ns_attach_object: Invalid handle %p [%s]\n", + node, acpi_ut_get_descriptor_name(node))); + return_ACPI_STATUS(AE_BAD_PARAMETER); } /* Check if this object is already attached */ if (node->object == object) { - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, - "Obj %p already installed in name_obj %p\n", - object, node)); + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Obj %p already installed in name_obj %p\n", + object, node)); - return_ACPI_STATUS (AE_OK); + return_ACPI_STATUS(AE_OK); } /* If null object, we will just install it */ if (!object) { - obj_desc = NULL; + obj_desc = NULL; object_type = ACPI_TYPE_ANY; } @@ -133,14 +124,14 @@ acpi_ns_attach_object ( * If the source object is a namespace Node with an attached object, * we will use that (attached) object */ - else if ((ACPI_GET_DESCRIPTOR_TYPE (object) == ACPI_DESC_TYPE_NAMED) && - ((struct acpi_namespace_node *) object)->object) { + else if ((ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED) && + ((struct acpi_namespace_node *)object)->object) { /* * Value passed is a name handle and that name has a * non-null value. Use that name's value and type. */ - obj_desc = ((struct acpi_namespace_node *) object)->object; - object_type = ((struct acpi_namespace_node *) object)->type; + obj_desc = ((struct acpi_namespace_node *)object)->object; + object_type = ((struct acpi_namespace_node *)object)->type; } /* @@ -148,20 +139,20 @@ acpi_ns_attach_object ( * it first */ else { - obj_desc = (union acpi_operand_object *) object; + obj_desc = (union acpi_operand_object *)object; /* Use the given type */ object_type = type; } - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Installing %p into Node %p [%4.4s]\n", - obj_desc, node, acpi_ut_get_node_name (node))); + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Installing %p into Node %p [%4.4s]\n", + obj_desc, node, acpi_ut_get_node_name(node))); /* Detach an existing attached object if present */ if (node->object) { - acpi_ns_detach_object (node); + acpi_ns_detach_object(node); } if (obj_desc) { @@ -169,7 +160,7 @@ acpi_ns_attach_object ( * Must increment the new value's reference count * (if it is an internal object) */ - acpi_ut_add_reference (obj_desc); + acpi_ut_add_reference(obj_desc); /* * Handle objects with multiple descriptors - walk @@ -185,13 +176,12 @@ acpi_ns_attach_object ( last_obj_desc->common.next_object = node->object; } - node->type = (u8) object_type; - node->object = obj_desc; + node->type = (u8) object_type; + node->object = obj_desc; - return_ACPI_STATUS (AE_OK); + return_ACPI_STATUS(AE_OK); } - /******************************************************************************* * * FUNCTION: acpi_ns_detach_object @@ -206,30 +196,27 @@ acpi_ns_attach_object ( * ******************************************************************************/ -void -acpi_ns_detach_object ( - struct acpi_namespace_node *node) +void acpi_ns_detach_object(struct acpi_namespace_node *node) { - union acpi_operand_object *obj_desc; - - - ACPI_FUNCTION_TRACE ("ns_detach_object"); + union acpi_operand_object *obj_desc; + ACPI_FUNCTION_TRACE("ns_detach_object"); obj_desc = node->object; if (!obj_desc || - (ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_LOCAL_DATA)) { + (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA)) { return_VOID; } /* Clear the entry in all cases */ node->object = NULL; - if (ACPI_GET_DESCRIPTOR_TYPE (obj_desc) == ACPI_DESC_TYPE_OPERAND) { + if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == ACPI_DESC_TYPE_OPERAND) { node->object = obj_desc->common.next_object; if (node->object && - (ACPI_GET_OBJECT_TYPE (node->object) != ACPI_TYPE_LOCAL_DATA)) { + (ACPI_GET_OBJECT_TYPE(node->object) != + ACPI_TYPE_LOCAL_DATA)) { node->object = node->object->common.next_object; } } @@ -238,16 +225,15 @@ acpi_ns_detach_object ( node->type = ACPI_TYPE_ANY; - ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "Node %p [%4.4s] Object %p\n", - node, acpi_ut_get_node_name (node), obj_desc)); + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "Node %p [%4.4s] Object %p\n", + node, acpi_ut_get_node_name(node), obj_desc)); /* Remove one reference on the object (and all subobjects) */ - acpi_ut_remove_reference (obj_desc); + acpi_ut_remove_reference(obj_desc); return_VOID; } - /******************************************************************************* * * FUNCTION: acpi_ns_get_attached_object @@ -261,29 +247,28 @@ acpi_ns_detach_object ( * ******************************************************************************/ -union acpi_operand_object * -acpi_ns_get_attached_object ( - struct acpi_namespace_node *node) +union acpi_operand_object *acpi_ns_get_attached_object(struct + acpi_namespace_node + *node) { - ACPI_FUNCTION_TRACE_PTR ("ns_get_attached_object", node); - + ACPI_FUNCTION_TRACE_PTR("ns_get_attached_object", node); if (!node) { - ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "Null Node ptr\n")); - return_PTR (NULL); + ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Null Node ptr\n")); + return_PTR(NULL); } if (!node->object || - ((ACPI_GET_DESCRIPTOR_TYPE (node->object) != ACPI_DESC_TYPE_OPERAND) && - (ACPI_GET_DESCRIPTOR_TYPE (node->object) != ACPI_DESC_TYPE_NAMED)) || - (ACPI_GET_OBJECT_TYPE (node->object) == ACPI_TYPE_LOCAL_DATA)) { - return_PTR (NULL); + ((ACPI_GET_DESCRIPTOR_TYPE(node->object) != ACPI_DESC_TYPE_OPERAND) + && (ACPI_GET_DESCRIPTOR_TYPE(node->object) != + ACPI_DESC_TYPE_NAMED)) + || (ACPI_GET_OBJECT_TYPE(node->object) == ACPI_TYPE_LOCAL_DATA)) { + return_PTR(NULL); } - return_PTR (node->object); + return_PTR(node->object); } - /******************************************************************************* * * FUNCTION: acpi_ns_get_secondary_object @@ -297,24 +282,23 @@ acpi_ns_get_attached_object ( * ******************************************************************************/ -union acpi_operand_object * -acpi_ns_get_secondary_object ( - union acpi_operand_object *obj_desc) +union acpi_operand_object *acpi_ns_get_secondary_object(union + acpi_operand_object + *obj_desc) { - ACPI_FUNCTION_TRACE_PTR ("ns_get_secondary_object", obj_desc); - - - if ((!obj_desc) || - (ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_LOCAL_DATA) || - (!obj_desc->common.next_object) || - (ACPI_GET_OBJECT_TYPE (obj_desc->common.next_object) == ACPI_TYPE_LOCAL_DATA)) { - return_PTR (NULL); + ACPI_FUNCTION_TRACE_PTR("ns_get_secondary_object", obj_desc); + + if ((!obj_desc) || + (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) || + (!obj_desc->common.next_object) || + (ACPI_GET_OBJECT_TYPE(obj_desc->common.next_object) == + ACPI_TYPE_LOCAL_DATA)) { + return_PTR(NULL); } - return_PTR (obj_desc->common.next_object); + return_PTR(obj_desc->common.next_object); } - /******************************************************************************* * * FUNCTION: acpi_ns_attach_data @@ -330,23 +314,20 @@ acpi_ns_get_secondary_object ( ******************************************************************************/ acpi_status -acpi_ns_attach_data ( - struct acpi_namespace_node *node, - acpi_object_handler handler, - void *data) +acpi_ns_attach_data(struct acpi_namespace_node *node, + acpi_object_handler handler, void *data) { - union acpi_operand_object *prev_obj_desc; - union acpi_operand_object *obj_desc; - union acpi_operand_object *data_desc; - + union acpi_operand_object *prev_obj_desc; + union acpi_operand_object *obj_desc; + union acpi_operand_object *data_desc; /* We only allow one attachment per handler */ prev_obj_desc = NULL; obj_desc = node->object; while (obj_desc) { - if ((ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_LOCAL_DATA) && - (obj_desc->data.handler == handler)) { + if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) && + (obj_desc->data.handler == handler)) { return (AE_ALREADY_EXISTS); } @@ -356,7 +337,7 @@ acpi_ns_attach_data ( /* Create an internal object for the data */ - data_desc = acpi_ut_create_internal_object (ACPI_TYPE_LOCAL_DATA); + data_desc = acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_DATA); if (!data_desc) { return (AE_NO_MEMORY); } @@ -368,15 +349,13 @@ acpi_ns_attach_data ( if (prev_obj_desc) { prev_obj_desc->common.next_object = data_desc; - } - else { + } else { node->object = data_desc; } return (AE_OK); } - /******************************************************************************* * * FUNCTION: acpi_ns_detach_data @@ -392,27 +371,25 @@ acpi_ns_attach_data ( ******************************************************************************/ acpi_status -acpi_ns_detach_data ( - struct acpi_namespace_node *node, - acpi_object_handler handler) +acpi_ns_detach_data(struct acpi_namespace_node * node, + acpi_object_handler handler) { - union acpi_operand_object *obj_desc; - union acpi_operand_object *prev_obj_desc; - + union acpi_operand_object *obj_desc; + union acpi_operand_object *prev_obj_desc; prev_obj_desc = NULL; obj_desc = node->object; while (obj_desc) { - if ((ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_LOCAL_DATA) && - (obj_desc->data.handler == handler)) { + if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) && + (obj_desc->data.handler == handler)) { if (prev_obj_desc) { - prev_obj_desc->common.next_object = obj_desc->common.next_object; - } - else { + prev_obj_desc->common.next_object = + obj_desc->common.next_object; + } else { node->object = obj_desc->common.next_object; } - acpi_ut_remove_reference (obj_desc); + acpi_ut_remove_reference(obj_desc); return (AE_OK); } @@ -423,7 +400,6 @@ acpi_ns_detach_data ( return (AE_NOT_FOUND); } - /******************************************************************************* * * FUNCTION: acpi_ns_get_attached_data @@ -440,18 +416,15 @@ acpi_ns_detach_data ( ******************************************************************************/ acpi_status -acpi_ns_get_attached_data ( - struct acpi_namespace_node *node, - acpi_object_handler handler, - void **data) +acpi_ns_get_attached_data(struct acpi_namespace_node * node, + acpi_object_handler handler, void **data) { - union acpi_operand_object *obj_desc; - + union acpi_operand_object *obj_desc; obj_desc = node->object; while (obj_desc) { - if ((ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_LOCAL_DATA) && - (obj_desc->data.handler == handler)) { + if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) && + (obj_desc->data.handler == handler)) { *data = obj_desc->data.pointer; return (AE_OK); } @@ -461,5 +434,3 @@ acpi_ns_get_attached_data ( return (AE_NOT_FOUND); } - - |