5e449c623c
all "struct acpi_devnodes" to their corresponding ACPI_HANDLEs. Anywhere in the acpi(4) subtree, the node-structure can be obtained from a handle via acpi_get_node(). The idea is similar to e.g. device_private(). Benefits: (a) simplifies code, (b) avoids issues with locking as ACPICA does the serialization for us, (c) avoids the need to access the glocal softc, and (d) avoids the O(n) loop required to search for a handle from the node queue.
90 lines
4.2 KiB
C
90 lines
4.2 KiB
C
/* $NetBSD: acpi_util.h,v 1.3 2010/06/07 17:13:52 jruoho Exp $ */
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/*-
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* Copyright (c) 2003, 2007 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Charles M. Hannum of By Noon Software, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright 2001, 2003 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Jason R. Thorpe for Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SYS_DEV_ACPI_ACPI_UTIL_H
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#define _SYS_DEV_ACPI_ACPI_UTIL_H
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ACPI_STATUS acpi_eval_integer(ACPI_HANDLE, const char *, ACPI_INTEGER *);
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ACPI_STATUS acpi_eval_set_integer(ACPI_HANDLE handle, const char *path,
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ACPI_INTEGER arg);
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ACPI_STATUS acpi_eval_string(ACPI_HANDLE, const char *, char **);
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ACPI_STATUS acpi_eval_struct(ACPI_HANDLE, const char *, ACPI_BUFFER *);
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ACPI_STATUS acpi_eval_reference_handle(ACPI_OBJECT *, ACPI_HANDLE *);
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ACPI_STATUS acpi_foreach_package_object(ACPI_OBJECT *,
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ACPI_STATUS (*)(ACPI_OBJECT *, void *), void *);
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ACPI_STATUS acpi_get(ACPI_HANDLE, ACPI_BUFFER *,
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ACPI_STATUS (*)(ACPI_HANDLE, ACPI_BUFFER *));
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struct acpi_devnode *acpi_get_node(ACPI_HANDLE handle);
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void acpi_set_node(struct acpi_devnode *ad);
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const char* acpi_name(ACPI_HANDLE);
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int acpi_match_hid(ACPI_DEVICE_INFO *, const char * const *);
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#endif /* !_SYS_DEV_ACPI_ACPI_UTIL_H */
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