[linux-block.git] / drivers / acpi / acpica / nsxfname.c

/******************************************************************************
 *
 * Module Name: nsxfname - Public interfaces to the ACPI subsystem
 *                         ACPI Namespace oriented interfaces
 *
 *****************************************************************************/

/*
 * 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 "accommon.h"
#include "acnamesp.h"

#define _COMPONENT          ACPI_NAMESPACE
ACPI_MODULE_NAME("nsxfname")

/******************************************************************************
 *
 * FUNCTION:    acpi_get_handle
 *
 * PARAMETERS:  Parent          - Object to search under (search scope).
 *              Pathname        - Pointer to an asciiz string containing the
 *                                name
 *              ret_handle      - Where the return handle is returned
 *
 * RETURN:      Status
 *
 * DESCRIPTION: This routine will search for a caller specified name in the
 *              name space.  The caller can restrict the search region by
 *              specifying a non NULL parent.  The parent value is itself a
 *              namespace handle.
 *
 ******************************************************************************/
acpi_status
acpi_get_handle(acpi_handle parent,
		acpi_string pathname, acpi_handle * ret_handle)
{
	acpi_status status;
	struct acpi_namespace_node *node = NULL;
	struct acpi_namespace_node *prefix_node = NULL;

	ACPI_FUNCTION_ENTRY();

	/* Parameter Validation */

	if (!ret_handle || !pathname) {
		return (AE_BAD_PARAMETER);
	}

	/* Convert a parent handle to a prefix node */

	if (parent) {
		prefix_node = acpi_ns_map_handle_to_node(parent);
		if (!prefix_node) {
			return (AE_BAD_PARAMETER);
		}
	}

	/*
	 * Valid cases are:
	 * 1) Fully qualified pathname
	 * 2) Parent + Relative pathname
	 *
	 * Error for <null Parent + relative path>
	 */
	if (acpi_ns_valid_root_prefix(pathname[0])) {

		/* Pathname is fully qualified (starts with '\') */

		/* Special case for root-only, since we can't search for it */

		if (!ACPI_STRCMP(pathname, ACPI_NS_ROOT_PATH)) {
			*ret_handle =
			    acpi_ns_convert_entry_to_handle(acpi_gbl_root_node);
			return (AE_OK);
		}
	} else if (!prefix_node) {

		/* Relative path with null prefix is disallowed */

		return (AE_BAD_PARAMETER);
	}

	/* Find the Node and convert to a handle */

	status =
	    acpi_ns_get_node(prefix_node, pathname, ACPI_NS_NO_UPSEARCH, &node);
	if (ACPI_SUCCESS(status)) {
		*ret_handle = acpi_ns_convert_entry_to_handle(node);
	}

	return (status);
}

ACPI_EXPORT_SYMBOL(acpi_get_handle)

/******************************************************************************
 *
 * FUNCTION:    acpi_get_name
 *
 * PARAMETERS:  Handle          - Handle to be converted to a pathname
 *              name_type       - Full pathname or single segment
 *              Buffer          - Buffer for returned path
 *
 * RETURN:      Pointer to a string containing the fully qualified Name.
 *
 * DESCRIPTION: This routine returns the fully qualified name associated with
 *              the Handle parameter.  This and the acpi_pathname_to_handle are
 *              complementary functions.
 *
 ******************************************************************************/
acpi_status
acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer)
{
	acpi_status status;
	struct acpi_namespace_node *node;

	/* Parameter validation */

	if (name_type > ACPI_NAME_TYPE_MAX) {
		return (AE_BAD_PARAMETER);
	}

	status = acpi_ut_validate_buffer(buffer);
	if (ACPI_FAILURE(status)) {
		return (status);
	}

	if (name_type == ACPI_FULL_PATHNAME) {

		/* Get the full pathname (From the namespace root) */

		status = acpi_ns_handle_to_pathname(handle, buffer);
		return (status);
	}

	/*
	 * Wants the single segment ACPI name.
	 * Validate handle and convert to a namespace Node
	 */
	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
	if (ACPI_FAILURE(status)) {
		return (status);
	}

	node = acpi_ns_map_handle_to_node(handle);
	if (!node) {
		status = AE_BAD_PARAMETER;
		goto unlock_and_exit;
	}

	/* Validate/Allocate/Clear caller buffer */

	status = acpi_ut_initialize_buffer(buffer, ACPI_PATH_SEGMENT_LENGTH);
	if (ACPI_FAILURE(status)) {
		goto unlock_and_exit;
	}

	/* Just copy the ACPI name from the Node and zero terminate it */

	ACPI_STRNCPY(buffer->pointer, acpi_ut_get_node_name(node),
		     ACPI_NAME_SIZE);
	((char *)buffer->pointer)[ACPI_NAME_SIZE] = 0;
	status = AE_OK;

      unlock_and_exit:

	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
	return (status);
}

ACPI_EXPORT_SYMBOL(acpi_get_name)

/******************************************************************************
 *
 * FUNCTION:    acpi_get_object_info
 *
 * PARAMETERS:  Handle          - Object Handle
 *              Buffer          - Where the info is returned
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Returns information about an object as gleaned from the
 *              namespace node and possibly by running several standard
 *              control methods (Such as in the case of a device.)
 *
 ******************************************************************************/
acpi_status
acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer)
{
	acpi_status status;
	struct acpi_namespace_node *node;
	struct acpi_device_info *info;
	struct acpi_device_info *return_info;
	struct acpi_compatible_id_list *cid_list = NULL;
	acpi_size size;

	/* Parameter validation */

	if (!handle || !buffer) {
		return (AE_BAD_PARAMETER);
	}

	status = acpi_ut_validate_buffer(buffer);
	if (ACPI_FAILURE(status)) {
		return (status);
	}

	info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_device_info));
	if (!info) {
		return (AE_NO_MEMORY);
	}

	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
	if (ACPI_FAILURE(status)) {
		goto cleanup;
	}

	node = acpi_ns_map_handle_to_node(handle);
	if (!node) {
		(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
		status = AE_BAD_PARAMETER;
		goto cleanup;
	}

	/* Init return structure */

	size = sizeof(struct acpi_device_info);

	info->type = node->type;
	info->name = node->name.integer;
	info->valid = 0;

	if (node->type == ACPI_TYPE_METHOD) {
		info->param_count = node->object->method.param_count;
	}

	status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
	if (ACPI_FAILURE(status)) {
		goto cleanup;
	}

	/* If not a device, we are all done */

	if (info->type == ACPI_TYPE_DEVICE) {
		/*
		 * Get extra info for ACPI Devices objects only:
		 * Run the Device _HID, _UID, _CID, _STA, _ADR and _sx_d methods.
		 *
		 * Note: none of these methods are required, so they may or may
		 * not be present for this device.  The Info->Valid bitfield is used
		 * to indicate which methods were found and ran successfully.
		 */

		/* Execute the Device._HID method */

		status = acpi_ut_execute_HID(node, &info->hardware_id);
		if (ACPI_SUCCESS(status)) {
			info->valid |= ACPI_VALID_HID;
		}

		/* Execute the Device._UID method */

		status = acpi_ut_execute_UID(node, &info->unique_id);
		if (ACPI_SUCCESS(status)) {
			info->valid |= ACPI_VALID_UID;
		}

		/* Execute the Device._CID method */

		status = acpi_ut_execute_CID(node, &cid_list);
		if (ACPI_SUCCESS(status)) {
			size += cid_list->size;
			info->valid |= ACPI_VALID_CID;
		}

		/* Execute the Device._STA method */

		status = acpi_ut_execute_STA(node, &info->current_status);
		if (ACPI_SUCCESS(status)) {
			info->valid |= ACPI_VALID_STA;
		}

		/* Execute the Device._ADR method */

		status = acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, node,
							 &info->address);
		if (ACPI_SUCCESS(status)) {
			info->valid |= ACPI_VALID_ADR;
		}

		/* Execute the Device._sx_d methods */

		status = acpi_ut_execute_sxds(node, info->highest_dstates);
		if (ACPI_SUCCESS(status)) {
			info->valid |= ACPI_VALID_SXDS;
		}
	}

	/* Validate/Allocate/Clear caller buffer */

	status = acpi_ut_initialize_buffer(buffer, size);
	if (ACPI_FAILURE(status)) {
		goto cleanup;
	}

	/* Populate the return buffer */

	return_info = buffer->pointer;
	ACPI_MEMCPY(return_info, info, sizeof(struct acpi_device_info));

	if (cid_list) {
		ACPI_MEMCPY(&return_info->compatibility_id, cid_list,
			    cid_list->size);
	}

      cleanup:
	ACPI_FREE(info);
	if (cid_list) {
		ACPI_FREE(cid_list);
	}
	return (status);
}

ACPI_EXPORT_SYMBOL(acpi_get_object_info)
Commit	Line	Data
1da177e4 LT	1	/******************************************************************************
	2	*
	3	* Module Name: nsxfname - Public interfaces to the ACPI subsystem
	4	* ACPI Namespace oriented interfaces
	5	*
	6	*****************************************************************************/
	7
	8	/*
75a44ce0	9	* Copyright (C) 2000 - 2008, Intel Corp.
1da177e4 LT	10	* All rights reserved.
	11	*
	12	* Redistribution and use in source and binary forms, with or without
	13	* modification, are permitted provided that the following conditions
	14	* are met:
	15	* 1. Redistributions of source code must retain the above copyright
	16	* notice, this list of conditions, and the following disclaimer,
	17	* without modification.
	18	* 2. Redistributions in binary form must reproduce at minimum a disclaimer
	19	* substantially similar to the "NO WARRANTY" disclaimer below
	20	* ("Disclaimer") and any redistribution must be conditioned upon
	21	* including a substantially similar Disclaimer requirement for further
	22	* binary redistribution.
	23	* 3. Neither the names of the above-listed copyright holders nor the names
	24	* of any contributors may be used to endorse or promote products derived
	25	* from this software without specific prior written permission.
	26	*
	27	* Alternatively, this software may be distributed under the terms of the
	28	* GNU General Public License ("GPL") version 2 as published by the Free
	29	* Software Foundation.
	30	*
	31	* NO WARRANTY
	32	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	33	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	34	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
	35	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	36	* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	37	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	38	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	39	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	40	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
	41	* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	42	* POSSIBILITY OF SUCH DAMAGES.
	43	*/
	44
1da177e4	45	#include <acpi/acpi.h>
e2f7a777 LB	46	#include "accommon.h"
e2f7a777 LB	47	#include "acnamesp.h"
1da177e4	48
1da177e4	49	#define _COMPONENT ACPI_NAMESPACE
4be44fcd	50	ACPI_MODULE_NAME("nsxfname")
1da177e4 LT	51
	52	/******************************************************************************
	53	*
	54	* FUNCTION: acpi_get_handle
	55	*
	56	* PARAMETERS: Parent - Object to search under (search scope).
44f6c012 RM	57	* Pathname - Pointer to an asciiz string containing the
	58	* name
	59	* ret_handle - Where the return handle is returned
1da177e4 LT	60	*
	61	* RETURN: Status
	62	*
	63	* DESCRIPTION: This routine will search for a caller specified name in the
	64	* name space. The caller can restrict the search region by
	65	* specifying a non NULL parent. The parent value is itself a
	66	* namespace handle.
	67	*
	68	******************************************************************************/
1da177e4	69	acpi_status
4be44fcd LB	70	acpi_get_handle(acpi_handle parent,
4be44fcd LB	71	acpi_string pathname, acpi_handle * ret_handle)
1da177e4	72	{
4be44fcd LB	73	acpi_status status;
	74	struct acpi_namespace_node *node = NULL;
	75	struct acpi_namespace_node *prefix_node = NULL;
1da177e4	76
4be44fcd	77	ACPI_FUNCTION_ENTRY();
1da177e4 LT	78
	79	/* Parameter Validation */
	80
	81	if (!ret_handle \|\| !pathname) {
	82	return (AE_BAD_PARAMETER);
	83	}
	84
	85	/* Convert a parent handle to a prefix node */
	86
	87	if (parent) {
4be44fcd	88	prefix_node = acpi_ns_map_handle_to_node(parent);
1da177e4	89	if (!prefix_node) {
1da177e4 LT	90	return (AE_BAD_PARAMETER);
1da177e4 LT	91	}
f1c2b1da BM	92	}
	93
	94	/*
	95	* Valid cases are:
	96	* 1) Fully qualified pathname
	97	* 2) Parent + Relative pathname
	98	*
	99	* Error for <null Parent + relative path>
	100	*/
	101	if (acpi_ns_valid_root_prefix(pathname[0])) {
1da177e4	102
f1c2b1da BM	103	/* Pathname is fully qualified (starts with '\') */
	104
	105	/* Special case for root-only, since we can't search for it */
	106
	107	if (!ACPI_STRCMP(pathname, ACPI_NS_ROOT_PATH)) {
	108	*ret_handle =
	109	acpi_ns_convert_entry_to_handle(acpi_gbl_root_node);
	110	return (AE_OK);
1da177e4	111	}
f1c2b1da	112	} else if (!prefix_node) {
1da177e4	113
f1c2b1da	114	/* Relative path with null prefix is disallowed */
1da177e4	115
f1c2b1da	116	return (AE_BAD_PARAMETER);
1da177e4 LT	117	}
1da177e4 LT	118
f1c2b1da	119	/* Find the Node and convert to a handle */
1da177e4	120
f1c2b1da BM	121	status =
f1c2b1da BM	122	acpi_ns_get_node(prefix_node, pathname, ACPI_NS_NO_UPSEARCH, &node);
4be44fcd LB	123	if (ACPI_SUCCESS(status)) {
4be44fcd LB	124	*ret_handle = acpi_ns_convert_entry_to_handle(node);
1da177e4 LT	125	}
	126
	127	return (status);
	128	}
1da177e4	129
8313524a	130	ACPI_EXPORT_SYMBOL(acpi_get_handle)
1da177e4 LT	131
	132	/******************************************************************************
	133	*
	134	* FUNCTION: acpi_get_name
	135	*
	136	* PARAMETERS: Handle - Handle to be converted to a pathname
	137	* name_type - Full pathname or single segment
	138	* Buffer - Buffer for returned path
	139	*
	140	* RETURN: Pointer to a string containing the fully qualified Name.
	141	*
	142	* DESCRIPTION: This routine returns the fully qualified name associated with
	143	* the Handle parameter. This and the acpi_pathname_to_handle are
	144	* complementary functions.
	145	*
	146	******************************************************************************/
1da177e4	147	acpi_status
4be44fcd	148	acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer)
1da177e4	149	{
4be44fcd LB	150	acpi_status status;
4be44fcd LB	151	struct acpi_namespace_node *node;
1da177e4 LT	152
	153	/* Parameter validation */
	154
	155	if (name_type > ACPI_NAME_TYPE_MAX) {
	156	return (AE_BAD_PARAMETER);
	157	}
	158
4be44fcd LB	159	status = acpi_ut_validate_buffer(buffer);
4be44fcd LB	160	if (ACPI_FAILURE(status)) {
1da177e4 LT	161	return (status);
	162	}
	163
	164	if (name_type == ACPI_FULL_PATHNAME) {
52fc0b02	165
1da177e4 LT	166	/* Get the full pathname (From the namespace root) */
1da177e4 LT	167
4be44fcd	168	status = acpi_ns_handle_to_pathname(handle, buffer);
1da177e4 LT	169	return (status);
	170	}
	171
	172	/*
	173	* Wants the single segment ACPI name.
	174	* Validate handle and convert to a namespace Node
	175	*/
4be44fcd LB	176	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
4be44fcd LB	177	if (ACPI_FAILURE(status)) {
1da177e4 LT	178	return (status);
	179	}
	180
4be44fcd	181	node = acpi_ns_map_handle_to_node(handle);
1da177e4 LT	182	if (!node) {
	183	status = AE_BAD_PARAMETER;
	184	goto unlock_and_exit;
	185	}
	186
	187	/* Validate/Allocate/Clear caller buffer */
	188
4be44fcd LB	189	status = acpi_ut_initialize_buffer(buffer, ACPI_PATH_SEGMENT_LENGTH);
4be44fcd LB	190	if (ACPI_FAILURE(status)) {
1da177e4 LT	191	goto unlock_and_exit;
	192	}
	193
	194	/* Just copy the ACPI name from the Node and zero terminate it */
	195
4be44fcd LB	196	ACPI_STRNCPY(buffer->pointer, acpi_ut_get_node_name(node),
	197	ACPI_NAME_SIZE);
	198	((char *)buffer->pointer)[ACPI_NAME_SIZE] = 0;
1da177e4 LT	199	status = AE_OK;
1da177e4 LT	200
4be44fcd	201	unlock_and_exit:
1da177e4	202
4be44fcd	203	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
1da177e4 LT	204	return (status);
1da177e4 LT	205	}
1da177e4	206
8313524a	207	ACPI_EXPORT_SYMBOL(acpi_get_name)
1da177e4 LT	208
	209	/******************************************************************************
	210	*
	211	* FUNCTION: acpi_get_object_info
	212	*
	213	* PARAMETERS: Handle - Object Handle
44f6c012	214	* Buffer - Where the info is returned
1da177e4 LT	215	*
	216	* RETURN: Status
	217	*
	218	* DESCRIPTION: Returns information about an object as gleaned from the
	219	* namespace node and possibly by running several standard
	220	* control methods (Such as in the case of a device.)
	221	*
	222	******************************************************************************/
1da177e4	223	acpi_status
4be44fcd	224	acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer)
1da177e4	225	{
4be44fcd LB	226	acpi_status status;
	227	struct acpi_namespace_node *node;
	228	struct acpi_device_info *info;
	229	struct acpi_device_info *return_info;
1da177e4	230	struct acpi_compatible_id_list *cid_list = NULL;
4be44fcd	231	acpi_size size;
1da177e4 LT	232
	233	/* Parameter validation */
	234
	235	if (!handle \|\| !buffer) {
	236	return (AE_BAD_PARAMETER);
	237	}
	238
4be44fcd LB	239	status = acpi_ut_validate_buffer(buffer);
4be44fcd LB	240	if (ACPI_FAILURE(status)) {
1da177e4 LT	241	return (status);
	242	}
	243
8313524a	244	info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_device_info));
1da177e4 LT	245	if (!info) {
	246	return (AE_NO_MEMORY);
	247	}
	248
4be44fcd LB	249	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
4be44fcd LB	250	if (ACPI_FAILURE(status)) {
1da177e4 LT	251	goto cleanup;
	252	}
	253
4be44fcd	254	node = acpi_ns_map_handle_to_node(handle);
1da177e4	255	if (!node) {
4be44fcd	256	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
237a9276	257	status = AE_BAD_PARAMETER;
1da177e4 LT	258	goto cleanup;
	259	}
	260
	261	/* Init return structure */
	262
4be44fcd	263	size = sizeof(struct acpi_device_info);
1da177e4	264
4be44fcd LB	265	info->type = node->type;
4be44fcd LB	266	info->name = node->name.integer;
1da177e4 LT	267	info->valid = 0;
1da177e4 LT	268
0a1fbf2d BM	269	if (node->type == ACPI_TYPE_METHOD) {
	270	info->param_count = node->object->method.param_count;
	271	}
	272
4be44fcd LB	273	status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
4be44fcd LB	274	if (ACPI_FAILURE(status)) {
1da177e4 LT	275	goto cleanup;
	276	}
	277
	278	/* If not a device, we are all done */
	279
	280	if (info->type == ACPI_TYPE_DEVICE) {
	281	/*
	282	* Get extra info for ACPI Devices objects only:
	283	* Run the Device _HID, _UID, _CID, _STA, _ADR and _sx_d methods.
	284	*
	285	* Note: none of these methods are required, so they may or may
	286	* not be present for this device. The Info->Valid bitfield is used
	287	* to indicate which methods were found and ran successfully.
	288	*/
	289
	290	/* Execute the Device._HID method */
	291
4be44fcd LB	292	status = acpi_ut_execute_HID(node, &info->hardware_id);
4be44fcd LB	293	if (ACPI_SUCCESS(status)) {
1da177e4 LT	294	info->valid \|= ACPI_VALID_HID;
	295	}
	296
	297	/* Execute the Device._UID method */
	298
4be44fcd LB	299	status = acpi_ut_execute_UID(node, &info->unique_id);
4be44fcd LB	300	if (ACPI_SUCCESS(status)) {
1da177e4 LT	301	info->valid \|= ACPI_VALID_UID;
	302	}
	303
	304	/* Execute the Device._CID method */
	305
4be44fcd LB	306	status = acpi_ut_execute_CID(node, &cid_list);
4be44fcd LB	307	if (ACPI_SUCCESS(status)) {
b8e4d893	308	size += cid_list->size;
1da177e4 LT	309	info->valid \|= ACPI_VALID_CID;
	310	}
	311
	312	/* Execute the Device._STA method */
	313
4be44fcd LB	314	status = acpi_ut_execute_STA(node, &info->current_status);
4be44fcd LB	315	if (ACPI_SUCCESS(status)) {
1da177e4 LT	316	info->valid \|= ACPI_VALID_STA;
	317	}
	318
	319	/* Execute the Device._ADR method */
	320
4be44fcd LB	321	status = acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, node,
	322	&info->address);
	323	if (ACPI_SUCCESS(status)) {
1da177e4 LT	324	info->valid \|= ACPI_VALID_ADR;
	325	}
	326
	327	/* Execute the Device._sx_d methods */
	328
4be44fcd LB	329	status = acpi_ut_execute_sxds(node, info->highest_dstates);
4be44fcd LB	330	if (ACPI_SUCCESS(status)) {
1da177e4 LT	331	info->valid \|= ACPI_VALID_SXDS;
	332	}
	333	}
	334
	335	/* Validate/Allocate/Clear caller buffer */
	336
4be44fcd LB	337	status = acpi_ut_initialize_buffer(buffer, size);
4be44fcd LB	338	if (ACPI_FAILURE(status)) {
1da177e4 LT	339	goto cleanup;
	340	}
	341
	342	/* Populate the return buffer */
	343
	344	return_info = buffer->pointer;
4be44fcd	345	ACPI_MEMCPY(return_info, info, sizeof(struct acpi_device_info));
1da177e4 LT	346
1da177e4 LT	347	if (cid_list) {
4be44fcd LB	348	ACPI_MEMCPY(&return_info->compatibility_id, cid_list,
4be44fcd LB	349	cid_list->size);
1da177e4 LT	350	}
1da177e4 LT	351
4be44fcd	352	cleanup:
8313524a	353	ACPI_FREE(info);
1da177e4	354	if (cid_list) {
8313524a	355	ACPI_FREE(cid_list);
1da177e4 LT	356	}
	357	return (status);
	358	}
1da177e4	359
8313524a	360	ACPI_EXPORT_SYMBOL(acpi_get_object_info)