[linux-2.6-block.git] / drivers / acpi / namespace / nsxfname.c

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

/*
 * Copyright (C) 2000 - 2006, R. Byron Moore
 * 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 <acpi/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) {
		status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
		if (ACPI_FAILURE(status)) {
			return (status);
		}

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

		status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
		if (ACPI_FAILURE(status)) {
			return (status);
		}
	}

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

	if (ACPI_STRCMP(pathname, ACPI_NS_ROOT_PATH) == 0) {
		*ret_handle =
		    acpi_ns_convert_entry_to_handle(acpi_gbl_root_node);
		return (AE_OK);
	}

	/*
	 *  Find the Node and convert to a handle
	 */
	status =
	    acpi_ns_get_node_by_path(pathname, prefix_node, ACPI_NS_NO_UPSEARCH,
				     &node);

	*ret_handle = NULL;
	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);
		goto cleanup;
	}

	/* Init return structure */

	size = sizeof(struct acpi_device_info);

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

	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	/*
4a90c7e8	9	* Copyright (C) 2000 - 2006, R. Byron Moore
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 LT	45	#include <acpi/acpi.h>
	46	#include <acpi/acnamesp.h>
	47
1da177e4	48	#define _COMPONENT ACPI_NAMESPACE
4be44fcd	49	ACPI_MODULE_NAME("nsxfname")
1da177e4 LT	50
	51	/******************************************************************************
	52	*
	53	* FUNCTION: acpi_get_handle
	54	*
	55	* PARAMETERS: Parent - Object to search under (search scope).
44f6c012 RM	56	* Pathname - Pointer to an asciiz string containing the
	57	* name
	58	* ret_handle - Where the return handle is returned
1da177e4 LT	59	*
	60	* RETURN: Status
	61	*
	62	* DESCRIPTION: This routine will search for a caller specified name in the
	63	* name space. The caller can restrict the search region by
	64	* specifying a non NULL parent. The parent value is itself a
	65	* namespace handle.
	66	*
	67	******************************************************************************/
1da177e4	68	acpi_status
4be44fcd LB	69	acpi_get_handle(acpi_handle parent,
4be44fcd LB	70	acpi_string pathname, acpi_handle * ret_handle)
1da177e4	71	{
4be44fcd LB	72	acpi_status status;
	73	struct acpi_namespace_node *node = NULL;
	74	struct acpi_namespace_node *prefix_node = NULL;
1da177e4	75
4be44fcd	76	ACPI_FUNCTION_ENTRY();
1da177e4 LT	77
	78	/* Parameter Validation */
	79
	80	if (!ret_handle \|\| !pathname) {
	81	return (AE_BAD_PARAMETER);
	82	}
	83
	84	/* Convert a parent handle to a prefix node */
	85
	86	if (parent) {
4be44fcd LB	87	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
4be44fcd LB	88	if (ACPI_FAILURE(status)) {
1da177e4 LT	89	return (status);
	90	}
	91
4be44fcd	92	prefix_node = acpi_ns_map_handle_to_node(parent);
1da177e4	93	if (!prefix_node) {
4be44fcd	94	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
1da177e4 LT	95	return (AE_BAD_PARAMETER);
	96	}
	97
4be44fcd LB	98	status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
4be44fcd LB	99	if (ACPI_FAILURE(status)) {
1da177e4 LT	100	return (status);
	101	}
	102	}
	103
	104	/* Special case for root, since we can't search for it */
	105
4be44fcd LB	106	if (ACPI_STRCMP(pathname, ACPI_NS_ROOT_PATH) == 0) {
	107	*ret_handle =
	108	acpi_ns_convert_entry_to_handle(acpi_gbl_root_node);
1da177e4 LT	109	return (AE_OK);
	110	}
	111
	112	/*
	113	* Find the Node and convert to a handle
	114	*/
4be44fcd LB	115	status =
	116	acpi_ns_get_node_by_path(pathname, prefix_node, ACPI_NS_NO_UPSEARCH,
	117	&node);
1da177e4 LT	118
1da177e4 LT	119	*ret_handle = NULL;
4be44fcd LB	120	if (ACPI_SUCCESS(status)) {
4be44fcd LB	121	*ret_handle = acpi_ns_convert_entry_to_handle(node);
1da177e4 LT	122	}
	123
	124	return (status);
	125	}
1da177e4	126
8313524a	127	ACPI_EXPORT_SYMBOL(acpi_get_handle)
1da177e4 LT	128
	129	/******************************************************************************
	130	*
	131	* FUNCTION: acpi_get_name
	132	*
	133	* PARAMETERS: Handle - Handle to be converted to a pathname
	134	* name_type - Full pathname or single segment
	135	* Buffer - Buffer for returned path
	136	*
	137	* RETURN: Pointer to a string containing the fully qualified Name.
	138	*
	139	* DESCRIPTION: This routine returns the fully qualified name associated with
	140	* the Handle parameter. This and the acpi_pathname_to_handle are
	141	* complementary functions.
	142	*
	143	******************************************************************************/
1da177e4	144	acpi_status
4be44fcd	145	acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer)
1da177e4	146	{
4be44fcd LB	147	acpi_status status;
4be44fcd LB	148	struct acpi_namespace_node *node;
1da177e4 LT	149
	150	/* Parameter validation */
	151
	152	if (name_type > ACPI_NAME_TYPE_MAX) {
	153	return (AE_BAD_PARAMETER);
	154	}
	155
4be44fcd LB	156	status = acpi_ut_validate_buffer(buffer);
4be44fcd LB	157	if (ACPI_FAILURE(status)) {
1da177e4 LT	158	return (status);
	159	}
	160
	161	if (name_type == ACPI_FULL_PATHNAME) {
52fc0b02	162
1da177e4 LT	163	/* Get the full pathname (From the namespace root) */
1da177e4 LT	164
4be44fcd	165	status = acpi_ns_handle_to_pathname(handle, buffer);
1da177e4 LT	166	return (status);
	167	}
	168
	169	/*
	170	* Wants the single segment ACPI name.
	171	* Validate handle and convert to a namespace Node
	172	*/
4be44fcd LB	173	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
4be44fcd LB	174	if (ACPI_FAILURE(status)) {
1da177e4 LT	175	return (status);
	176	}
	177
4be44fcd	178	node = acpi_ns_map_handle_to_node(handle);
1da177e4 LT	179	if (!node) {
	180	status = AE_BAD_PARAMETER;
	181	goto unlock_and_exit;
	182	}
	183
	184	/* Validate/Allocate/Clear caller buffer */
	185
4be44fcd LB	186	status = acpi_ut_initialize_buffer(buffer, ACPI_PATH_SEGMENT_LENGTH);
4be44fcd LB	187	if (ACPI_FAILURE(status)) {
1da177e4 LT	188	goto unlock_and_exit;
	189	}
	190
	191	/* Just copy the ACPI name from the Node and zero terminate it */
	192
4be44fcd LB	193	ACPI_STRNCPY(buffer->pointer, acpi_ut_get_node_name(node),
	194	ACPI_NAME_SIZE);
	195	((char *)buffer->pointer)[ACPI_NAME_SIZE] = 0;
1da177e4 LT	196	status = AE_OK;
1da177e4 LT	197
4be44fcd	198	unlock_and_exit:
1da177e4	199
4be44fcd	200	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
1da177e4 LT	201	return (status);
1da177e4 LT	202	}
1da177e4	203
8313524a	204	ACPI_EXPORT_SYMBOL(acpi_get_name)
1da177e4 LT	205
	206	/******************************************************************************
	207	*
	208	* FUNCTION: acpi_get_object_info
	209	*
	210	* PARAMETERS: Handle - Object Handle
44f6c012	211	* Buffer - Where the info is returned
1da177e4 LT	212	*
	213	* RETURN: Status
	214	*
	215	* DESCRIPTION: Returns information about an object as gleaned from the
	216	* namespace node and possibly by running several standard
	217	* control methods (Such as in the case of a device.)
	218	*
	219	******************************************************************************/
1da177e4	220	acpi_status
4be44fcd	221	acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer)
1da177e4	222	{
4be44fcd LB	223	acpi_status status;
	224	struct acpi_namespace_node *node;
	225	struct acpi_device_info *info;
	226	struct acpi_device_info *return_info;
1da177e4	227	struct acpi_compatible_id_list *cid_list = NULL;
4be44fcd	228	acpi_size size;
1da177e4 LT	229
	230	/* Parameter validation */
	231
	232	if (!handle \|\| !buffer) {
	233	return (AE_BAD_PARAMETER);
	234	}
	235
4be44fcd LB	236	status = acpi_ut_validate_buffer(buffer);
4be44fcd LB	237	if (ACPI_FAILURE(status)) {
1da177e4 LT	238	return (status);
	239	}
	240
8313524a	241	info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_device_info));
1da177e4 LT	242	if (!info) {
	243	return (AE_NO_MEMORY);
	244	}
	245
4be44fcd LB	246	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
4be44fcd LB	247	if (ACPI_FAILURE(status)) {
1da177e4 LT	248	goto cleanup;
	249	}
	250
4be44fcd	251	node = acpi_ns_map_handle_to_node(handle);
1da177e4	252	if (!node) {
4be44fcd	253	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
1da177e4 LT	254	goto cleanup;
	255	}
	256
	257	/* Init return structure */
	258
4be44fcd	259	size = sizeof(struct acpi_device_info);
1da177e4	260
4be44fcd LB	261	info->type = node->type;
4be44fcd LB	262	info->name = node->name.integer;
1da177e4 LT	263	info->valid = 0;
1da177e4 LT	264
4be44fcd LB	265	status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
4be44fcd LB	266	if (ACPI_FAILURE(status)) {
1da177e4 LT	267	goto cleanup;
	268	}
	269
	270	/* If not a device, we are all done */
	271
	272	if (info->type == ACPI_TYPE_DEVICE) {
	273	/*
	274	* Get extra info for ACPI Devices objects only:
	275	* Run the Device _HID, _UID, _CID, _STA, _ADR and _sx_d methods.
	276	*
	277	* Note: none of these methods are required, so they may or may
	278	* not be present for this device. The Info->Valid bitfield is used
	279	* to indicate which methods were found and ran successfully.
	280	*/
	281
	282	/* Execute the Device._HID method */
	283
4be44fcd LB	284	status = acpi_ut_execute_HID(node, &info->hardware_id);
4be44fcd LB	285	if (ACPI_SUCCESS(status)) {
1da177e4 LT	286	info->valid \|= ACPI_VALID_HID;
	287	}
	288
	289	/* Execute the Device._UID method */
	290
4be44fcd LB	291	status = acpi_ut_execute_UID(node, &info->unique_id);
4be44fcd LB	292	if (ACPI_SUCCESS(status)) {
1da177e4 LT	293	info->valid \|= ACPI_VALID_UID;
	294	}
	295
	296	/* Execute the Device._CID method */
	297
4be44fcd LB	298	status = acpi_ut_execute_CID(node, &cid_list);
4be44fcd LB	299	if (ACPI_SUCCESS(status)) {
b8e4d893	300	size += cid_list->size;
1da177e4 LT	301	info->valid \|= ACPI_VALID_CID;
	302	}
	303
	304	/* Execute the Device._STA method */
	305
4be44fcd LB	306	status = acpi_ut_execute_STA(node, &info->current_status);
4be44fcd LB	307	if (ACPI_SUCCESS(status)) {
1da177e4 LT	308	info->valid \|= ACPI_VALID_STA;
	309	}
	310
	311	/* Execute the Device._ADR method */
	312
4be44fcd LB	313	status = acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, node,
	314	&info->address);
	315	if (ACPI_SUCCESS(status)) {
1da177e4 LT	316	info->valid \|= ACPI_VALID_ADR;
	317	}
	318
	319	/* Execute the Device._sx_d methods */
	320
4be44fcd LB	321	status = acpi_ut_execute_sxds(node, info->highest_dstates);
4be44fcd LB	322	if (ACPI_SUCCESS(status)) {
1da177e4 LT	323	info->valid \|= ACPI_VALID_SXDS;
	324	}
	325	}
	326
	327	/* Validate/Allocate/Clear caller buffer */
	328
4be44fcd LB	329	status = acpi_ut_initialize_buffer(buffer, size);
4be44fcd LB	330	if (ACPI_FAILURE(status)) {
1da177e4 LT	331	goto cleanup;
	332	}
	333
	334	/* Populate the return buffer */
	335
	336	return_info = buffer->pointer;
4be44fcd	337	ACPI_MEMCPY(return_info, info, sizeof(struct acpi_device_info));
1da177e4 LT	338
1da177e4 LT	339	if (cid_list) {
4be44fcd LB	340	ACPI_MEMCPY(&return_info->compatibility_id, cid_list,
4be44fcd LB	341	cid_list->size);
1da177e4 LT	342	}
1da177e4 LT	343
4be44fcd	344	cleanup:
8313524a	345	ACPI_FREE(info);
1da177e4	346	if (cid_list) {
8313524a	347	ACPI_FREE(cid_list);
1da177e4 LT	348	}
	349	return (status);
	350	}
1da177e4	351
8313524a	352	ACPI_EXPORT_SYMBOL(acpi_get_object_info)