Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * Module Name: nsobject - Utilities for objects attached to namespace
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *                         table entries
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <acpi/acpi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include "accommon.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include "acnamesp.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #define _COMPONENT          ACPI_NAMESPACE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) ACPI_MODULE_NAME("nsobject")
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18)  * FUNCTION:    acpi_ns_attach_object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20)  * PARAMETERS:  node                - Parent Node
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21)  *              object              - Object to be attached
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22)  *              type                - Type of object, or ACPI_TYPE_ANY if not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23)  *                                    known
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25)  * RETURN:      Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27)  * DESCRIPTION: Record the given object as the value associated with the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28)  *              name whose acpi_handle is passed. If Object is NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29)  *              and Type is ACPI_TYPE_ANY, set the name as having no value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30)  *              Note: Future may require that the Node->Flags field be passed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31)  *              as a parameter.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33)  * MUTEX:       Assumes namespace is locked
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35)  ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) acpi_status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) acpi_ns_attach_object(struct acpi_namespace_node *node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 		      union acpi_operand_object *object, acpi_object_type type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	union acpi_operand_object *obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	union acpi_operand_object *last_obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	acpi_object_type object_type = ACPI_TYPE_ANY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	ACPI_FUNCTION_TRACE(ns_attach_object);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	 * Parameter validation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	if (!node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 		/* Invalid handle */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 		ACPI_ERROR((AE_INFO, "Null NamedObj handle"));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 		return_ACPI_STATUS(AE_BAD_PARAMETER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	if (!object && (ACPI_TYPE_ANY != type)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 		/* Null object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 		ACPI_ERROR((AE_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 			    "Null object, but type not ACPI_TYPE_ANY"));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 		return_ACPI_STATUS(AE_BAD_PARAMETER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 		/* Not a name handle */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 		ACPI_ERROR((AE_INFO, "Invalid handle %p [%s]",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 			    node, acpi_ut_get_descriptor_name(node)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 		return_ACPI_STATUS(AE_BAD_PARAMETER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	/* Check if this object is already attached */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	if (node->object == object) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 				  "Obj %p already installed in NameObj %p\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 				  object, node));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 		return_ACPI_STATUS(AE_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	/* If null object, we will just install it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	if (!object) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 		obj_desc = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 		object_type = ACPI_TYPE_ANY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	 * If the source object is a namespace Node with an attached object,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	 * we will use that (attached) object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	else if ((ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 		 ((struct acpi_namespace_node *)object)->object) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 		 * Value passed is a name handle and that name has a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 		 * non-null value. Use that name's value and type.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 		obj_desc = ((struct acpi_namespace_node *)object)->object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 		object_type = ((struct acpi_namespace_node *)object)->type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	 * Otherwise, we will use the parameter object, but we must type
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	 * it first
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		obj_desc = (union acpi_operand_object *)object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 		/* Use the given type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 		object_type = type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Installing %p into Node %p [%4.4s]\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 			  obj_desc, node, acpi_ut_get_node_name(node)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	/* Detach an existing attached object if present */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	if (node->object) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		acpi_ns_detach_object(node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	if (obj_desc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 		 * Must increment the new value's reference count
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 		 * (if it is an internal object)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 		acpi_ut_add_reference(obj_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 		 * Handle objects with multiple descriptors - walk
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 		 * to the end of the descriptor list
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 		last_obj_desc = obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 		while (last_obj_desc->common.next_object) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 			last_obj_desc = last_obj_desc->common.next_object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 		/* Install the object at the front of the object list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 		last_obj_desc->common.next_object = node->object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	node->type = (u8) object_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	node->object = obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	return_ACPI_STATUS(AE_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)  * FUNCTION:    acpi_ns_detach_object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)  * PARAMETERS:  node           - A Namespace node whose object will be detached
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160)  * RETURN:      None.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)  * DESCRIPTION: Detach/delete an object associated with a namespace node.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)  *              if the object is an allocated object, it is freed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)  *              Otherwise, the field is simply cleared.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)  ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) void acpi_ns_detach_object(struct acpi_namespace_node *node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	union acpi_operand_object *obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	ACPI_FUNCTION_TRACE(ns_detach_object);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	obj_desc = node->object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	if (!obj_desc || (obj_desc->common.type == ACPI_TYPE_LOCAL_DATA)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 		return_VOID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	if (node->flags & ANOBJ_ALLOCATED_BUFFER) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 		/* Free the dynamic aml buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 		if (obj_desc->common.type == ACPI_TYPE_METHOD) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 			ACPI_FREE(obj_desc->method.aml_start);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	if (obj_desc->common.type == ACPI_TYPE_REGION) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 		acpi_ut_remove_address_range(obj_desc->region.space_id, node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	/* Clear the Node entry in all cases */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	node->object = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == ACPI_DESC_TYPE_OPERAND) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 		/* Unlink object from front of possible object list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 		node->object = obj_desc->common.next_object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 		/* Handle possible 2-descriptor object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 		if (node->object &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 		    (node->object->common.type != ACPI_TYPE_LOCAL_DATA)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 			node->object = node->object->common.next_object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 		 * Detach the object from any data objects (which are still held by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 		 * the namespace node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 		if (obj_desc->common.next_object &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		    ((obj_desc->common.next_object)->common.type ==
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 		     ACPI_TYPE_LOCAL_DATA)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 			obj_desc->common.next_object = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	/* Reset the node type to untyped */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	node->type = ACPI_TYPE_ANY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "Node %p [%4.4s] Object %p\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 			  node, acpi_ut_get_node_name(node), obj_desc));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	/* Remove one reference on the object (and all subobjects) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	acpi_ut_remove_reference(obj_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	return_VOID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)  * FUNCTION:    acpi_ns_get_attached_object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)  * PARAMETERS:  node             - Namespace node
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)  * RETURN:      Current value of the object field from the Node whose
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240)  *              handle is passed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)  * DESCRIPTION: Obtain the object attached to a namespace node.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)  ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) union acpi_operand_object *acpi_ns_get_attached_object(struct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 						       acpi_namespace_node
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 						       *node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	ACPI_FUNCTION_TRACE_PTR(ns_get_attached_object, node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	if (!node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 		ACPI_WARNING((AE_INFO, "Null Node ptr"));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 		return_PTR(NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	if (!node->object ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	    ((ACPI_GET_DESCRIPTOR_TYPE(node->object) != ACPI_DESC_TYPE_OPERAND)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	     && (ACPI_GET_DESCRIPTOR_TYPE(node->object) !=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 		 ACPI_DESC_TYPE_NAMED))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	    || ((node->object)->common.type == ACPI_TYPE_LOCAL_DATA)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 		return_PTR(NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 	return_PTR(node->object);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270)  * FUNCTION:    acpi_ns_get_secondary_object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272)  * PARAMETERS:  node             - Namespace node
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)  * RETURN:      Current value of the object field from the Node whose
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)  *              handle is passed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)  * DESCRIPTION: Obtain a secondary object associated with a namespace node.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)  ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) union acpi_operand_object *acpi_ns_get_secondary_object(union
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 							acpi_operand_object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 							*obj_desc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	ACPI_FUNCTION_TRACE_PTR(ns_get_secondary_object, obj_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	if ((!obj_desc) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	    (obj_desc->common.type == ACPI_TYPE_LOCAL_DATA) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	    (!obj_desc->common.next_object) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	    ((obj_desc->common.next_object)->common.type ==
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	     ACPI_TYPE_LOCAL_DATA)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 		return_PTR(NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	return_PTR(obj_desc->common.next_object);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300)  * FUNCTION:    acpi_ns_attach_data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)  * PARAMETERS:  node            - Namespace node
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)  *              handler         - Handler to be associated with the data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304)  *              data            - Data to be attached
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306)  * RETURN:      Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)  * DESCRIPTION: Low-level attach data. Create and attach a Data object.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310)  ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) acpi_status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) acpi_ns_attach_data(struct acpi_namespace_node *node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 		    acpi_object_handler handler, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 	union acpi_operand_object *prev_obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 	union acpi_operand_object *obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 	union acpi_operand_object *data_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 	/* We only allow one attachment per handler */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	prev_obj_desc = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 	obj_desc = node->object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 	while (obj_desc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 		if ((obj_desc->common.type == ACPI_TYPE_LOCAL_DATA) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 		    (obj_desc->data.handler == handler)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 			return (AE_ALREADY_EXISTS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 		prev_obj_desc = obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 		obj_desc = obj_desc->common.next_object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 	/* Create an internal object for the data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 	data_desc = acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_DATA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 	if (!data_desc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 		return (AE_NO_MEMORY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 	data_desc->data.handler = handler;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 	data_desc->data.pointer = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 	/* Install the data object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 	if (prev_obj_desc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 		prev_obj_desc->common.next_object = data_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 		node->object = data_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 	return (AE_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357)  * FUNCTION:    acpi_ns_detach_data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)  * PARAMETERS:  node            - Namespace node
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360)  *              handler         - Handler associated with the data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)  * RETURN:      Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364)  * DESCRIPTION: Low-level detach data. Delete the data node, but the caller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365)  *              is responsible for the actual data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367)  ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) acpi_status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) acpi_ns_detach_data(struct acpi_namespace_node *node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 		    acpi_object_handler handler)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 	union acpi_operand_object *obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 	union acpi_operand_object *prev_obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 	prev_obj_desc = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 	obj_desc = node->object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 	while (obj_desc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 		if ((obj_desc->common.type == ACPI_TYPE_LOCAL_DATA) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 		    (obj_desc->data.handler == handler)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 			if (prev_obj_desc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 				prev_obj_desc->common.next_object =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 				    obj_desc->common.next_object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 			} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 				node->object = obj_desc->common.next_object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 			acpi_ut_remove_reference(obj_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 			return (AE_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 		prev_obj_desc = obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) 		obj_desc = obj_desc->common.next_object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 	return (AE_NOT_FOUND);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401)  * FUNCTION:    acpi_ns_get_attached_data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403)  * PARAMETERS:  node            - Namespace node
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)  *              handler         - Handler associated with the data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405)  *              data            - Where the data is returned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407)  * RETURN:      Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409)  * DESCRIPTION: Low level interface to obtain data previously associated with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)  *              a namespace node.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)  ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) acpi_status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) acpi_ns_get_attached_data(struct acpi_namespace_node *node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) 			  acpi_object_handler handler, void **data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) 	union acpi_operand_object *obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) 	obj_desc = node->object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) 	while (obj_desc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) 		if ((obj_desc->common.type == ACPI_TYPE_LOCAL_DATA) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) 		    (obj_desc->data.handler == handler)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) 			*data = obj_desc->data.pointer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) 			return (AE_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) 		obj_desc = obj_desc->common.next_object;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) 	return (AE_NOT_FOUND);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) }