[linux.git] / drivers / acpi / namespace / nsxfname.c

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

/*
 * Copyright (C) 2000 - 2005, 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 <linux/module.h>

#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);
}

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);
}

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_MEM_CALLOCATE(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 += ((acpi_size) cid_list->count - 1) *
			    sizeof(struct acpi_compatible_id);
			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_MEM_FREE(info);
	if (cid_list) {
		ACPI_MEM_FREE(cid_list);
	}
	return (status);
}

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	/*
	9	* Copyright (C) 2000 - 2005, R. Byron Moore
	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
	45	#include <linux/module.h>
	46
	47	#include <acpi/acpi.h>
	48	#include <acpi/acnamesp.h>
	49
1da177e4	50	#define _COMPONENT ACPI_NAMESPACE
4be44fcd	51	ACPI_MODULE_NAME("nsxfname")
1da177e4 LT	52
	53	/******************************************************************************
	54	*
	55	* FUNCTION: acpi_get_handle
	56	*
	57	* PARAMETERS: Parent - Object to search under (search scope).
44f6c012 RM	58	* Pathname - Pointer to an asciiz string containing the
	59	* name
	60	* ret_handle - Where the return handle is returned
1da177e4 LT	61	*
	62	* RETURN: Status
	63	*
	64	* DESCRIPTION: This routine will search for a caller specified name in the
	65	* name space. The caller can restrict the search region by
	66	* specifying a non NULL parent. The parent value is itself a
	67	* namespace handle.
	68	*
	69	******************************************************************************/
1da177e4	70	acpi_status
4be44fcd LB	71	acpi_get_handle(acpi_handle parent,
4be44fcd LB	72	acpi_string pathname, acpi_handle * ret_handle)
1da177e4	73	{
4be44fcd LB	74	acpi_status status;
	75	struct acpi_namespace_node *node = NULL;
	76	struct acpi_namespace_node *prefix_node = NULL;
1da177e4	77
4be44fcd	78	ACPI_FUNCTION_ENTRY();
1da177e4 LT	79
	80	/* Parameter Validation */
	81
	82	if (!ret_handle \|\| !pathname) {
	83	return (AE_BAD_PARAMETER);
	84	}
	85
	86	/* Convert a parent handle to a prefix node */
	87
	88	if (parent) {
4be44fcd LB	89	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
4be44fcd LB	90	if (ACPI_FAILURE(status)) {
1da177e4 LT	91	return (status);
	92	}
	93
4be44fcd	94	prefix_node = acpi_ns_map_handle_to_node(parent);
1da177e4	95	if (!prefix_node) {
4be44fcd	96	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
1da177e4 LT	97	return (AE_BAD_PARAMETER);
	98	}
	99
4be44fcd LB	100	status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
4be44fcd LB	101	if (ACPI_FAILURE(status)) {
1da177e4 LT	102	return (status);
	103	}
	104	}
	105
	106	/* Special case for root, since we can't search for it */
	107
4be44fcd LB	108	if (ACPI_STRCMP(pathname, ACPI_NS_ROOT_PATH) == 0) {
	109	*ret_handle =
	110	acpi_ns_convert_entry_to_handle(acpi_gbl_root_node);
1da177e4 LT	111	return (AE_OK);
	112	}
	113
	114	/*
	115	* Find the Node and convert to a handle
	116	*/
4be44fcd LB	117	status =
	118	acpi_ns_get_node_by_path(pathname, prefix_node, ACPI_NS_NO_UPSEARCH,
	119	&node);
1da177e4 LT	120
1da177e4 LT	121	*ret_handle = NULL;
4be44fcd LB	122	if (ACPI_SUCCESS(status)) {
4be44fcd LB	123	*ret_handle = acpi_ns_convert_entry_to_handle(node);
1da177e4 LT	124	}
	125
	126	return (status);
	127	}
1da177e4	128
4be44fcd	129	EXPORT_SYMBOL(acpi_get_handle);
1da177e4 LT	130
	131	/******************************************************************************
	132	*
	133	* FUNCTION: acpi_get_name
	134	*
	135	* PARAMETERS: Handle - Handle to be converted to a pathname
	136	* name_type - Full pathname or single segment
	137	* Buffer - Buffer for returned path
	138	*
	139	* RETURN: Pointer to a string containing the fully qualified Name.
	140	*
	141	* DESCRIPTION: This routine returns the fully qualified name associated with
	142	* the Handle parameter. This and the acpi_pathname_to_handle are
	143	* complementary functions.
	144	*
	145	******************************************************************************/
	146
	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) {
	165	/* Get the full pathname (From the namespace root) */
	166
4be44fcd	167	status = acpi_ns_handle_to_pathname(handle, buffer);
1da177e4 LT	168	return (status);
	169	}
	170
	171	/*
	172	* Wants the single segment ACPI name.
	173	* Validate handle and convert to a namespace Node
	174	*/
4be44fcd LB	175	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
4be44fcd LB	176	if (ACPI_FAILURE(status)) {
1da177e4 LT	177	return (status);
	178	}
	179
4be44fcd	180	node = acpi_ns_map_handle_to_node(handle);
1da177e4 LT	181	if (!node) {
	182	status = AE_BAD_PARAMETER;
	183	goto unlock_and_exit;
	184	}
	185
	186	/* Validate/Allocate/Clear caller buffer */
	187
4be44fcd LB	188	status = acpi_ut_initialize_buffer(buffer, ACPI_PATH_SEGMENT_LENGTH);
4be44fcd LB	189	if (ACPI_FAILURE(status)) {
1da177e4 LT	190	goto unlock_and_exit;
	191	}
	192
	193	/* Just copy the ACPI name from the Node and zero terminate it */
	194
4be44fcd LB	195	ACPI_STRNCPY(buffer->pointer, acpi_ut_get_node_name(node),
	196	ACPI_NAME_SIZE);
	197	((char *)buffer->pointer)[ACPI_NAME_SIZE] = 0;
1da177e4 LT	198	status = AE_OK;
1da177e4 LT	199
4be44fcd	200	unlock_and_exit:
1da177e4	201
4be44fcd	202	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
1da177e4 LT	203	return (status);
1da177e4 LT	204	}
1da177e4	205
4be44fcd	206	EXPORT_SYMBOL(acpi_get_name);
1da177e4 LT	207
	208	/******************************************************************************
	209	*
	210	* FUNCTION: acpi_get_object_info
	211	*
	212	* PARAMETERS: Handle - Object Handle
44f6c012	213	* Buffer - Where the info is returned
1da177e4 LT	214	*
	215	* RETURN: Status
	216	*
	217	* DESCRIPTION: Returns information about an object as gleaned from the
	218	* namespace node and possibly by running several standard
	219	* control methods (Such as in the case of a device.)
	220	*
	221	******************************************************************************/
	222
	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
4be44fcd	244	info = ACPI_MEM_CALLOCATE(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);
1da177e4 LT	257	goto cleanup;
	258	}
	259
	260	/* Init return structure */
	261
4be44fcd	262	size = sizeof(struct acpi_device_info);
1da177e4	263
4be44fcd LB	264	info->type = node->type;
4be44fcd LB	265	info->name = node->name.integer;
1da177e4 LT	266	info->valid = 0;
1da177e4 LT	267
4be44fcd LB	268	status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
4be44fcd LB	269	if (ACPI_FAILURE(status)) {
1da177e4 LT	270	goto cleanup;
	271	}
	272
	273	/* If not a device, we are all done */
	274
	275	if (info->type == ACPI_TYPE_DEVICE) {
	276	/*
	277	* Get extra info for ACPI Devices objects only:
	278	* Run the Device _HID, _UID, _CID, _STA, _ADR and _sx_d methods.
	279	*
	280	* Note: none of these methods are required, so they may or may
	281	* not be present for this device. The Info->Valid bitfield is used
	282	* to indicate which methods were found and ran successfully.
	283	*/
	284
	285	/* Execute the Device._HID method */
	286
4be44fcd LB	287	status = acpi_ut_execute_HID(node, &info->hardware_id);
4be44fcd LB	288	if (ACPI_SUCCESS(status)) {
1da177e4 LT	289	info->valid \|= ACPI_VALID_HID;
	290	}
	291
	292	/* Execute the Device._UID method */
	293
4be44fcd LB	294	status = acpi_ut_execute_UID(node, &info->unique_id);
4be44fcd LB	295	if (ACPI_SUCCESS(status)) {
1da177e4 LT	296	info->valid \|= ACPI_VALID_UID;
	297	}
	298
	299	/* Execute the Device._CID method */
	300
4be44fcd LB	301	status = acpi_ut_execute_CID(node, &cid_list);
4be44fcd LB	302	if (ACPI_SUCCESS(status)) {
1da177e4	303	size += ((acpi_size) cid_list->count - 1) *
4be44fcd	304	sizeof(struct acpi_compatible_id);
1da177e4 LT	305	info->valid \|= ACPI_VALID_CID;
	306	}
	307
	308	/* Execute the Device._STA method */
	309
4be44fcd LB	310	status = acpi_ut_execute_STA(node, &info->current_status);
4be44fcd LB	311	if (ACPI_SUCCESS(status)) {
1da177e4 LT	312	info->valid \|= ACPI_VALID_STA;
	313	}
	314
	315	/* Execute the Device._ADR method */
	316
4be44fcd LB	317	status = acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, node,
	318	&info->address);
	319	if (ACPI_SUCCESS(status)) {
1da177e4 LT	320	info->valid \|= ACPI_VALID_ADR;
	321	}
	322
	323	/* Execute the Device._sx_d methods */
	324
4be44fcd LB	325	status = acpi_ut_execute_sxds(node, info->highest_dstates);
4be44fcd LB	326	if (ACPI_SUCCESS(status)) {
1da177e4 LT	327	info->valid \|= ACPI_VALID_SXDS;
	328	}
	329	}
	330
	331	/* Validate/Allocate/Clear caller buffer */
	332
4be44fcd LB	333	status = acpi_ut_initialize_buffer(buffer, size);
4be44fcd LB	334	if (ACPI_FAILURE(status)) {
1da177e4 LT	335	goto cleanup;
	336	}
	337
	338	/* Populate the return buffer */
	339
	340	return_info = buffer->pointer;
4be44fcd	341	ACPI_MEMCPY(return_info, info, sizeof(struct acpi_device_info));
1da177e4 LT	342
1da177e4 LT	343	if (cid_list) {
4be44fcd LB	344	ACPI_MEMCPY(&return_info->compatibility_id, cid_list,
4be44fcd LB	345	cid_list->size);
1da177e4 LT	346	}
1da177e4 LT	347
4be44fcd LB	348	cleanup:
4be44fcd LB	349	ACPI_MEM_FREE(info);
1da177e4	350	if (cid_list) {
4be44fcd	351	ACPI_MEM_FREE(cid_list);
1da177e4 LT	352	}
	353	return (status);
	354	}
1da177e4	355
4be44fcd	356	EXPORT_SYMBOL(acpi_get_object_info);