freebsd-dev/sys/dev/extres/hwreset/hwreset.h
Michal Meloun dac935533b EXTRES: Add OF node as argument to all <foo>_get_by_ofw_<bar>() functions.
In some cases, the driver must handle given properties located in
specific OF subnode. Instead of creating duplicate set of function, add
'node' as argument to existing functions, defaulting it to device OF node.

MFC after: 3 weeks
2016-07-10 18:28:15 +00:00

70 lines
2.3 KiB
C

/*-
* Copyright 2016 Michal Meloun <mmel@FreeBSD.org>
* 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.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, 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 DAMAGE.
*
* $FreeBSD$
*/
#ifndef DEV_EXTRES_HWRESET_HWRESET_H
#define DEV_EXTRES_HWRESET_HWRESET_H
#include "opt_platform.h"
#include <sys/types.h>
#ifdef FDT
#include <dev/ofw/ofw_bus.h>
#endif
typedef struct hwreset *hwreset_t;
/*
* Provider interface
*/
#ifdef FDT
int hwreset_default_ofw_map(device_t provider_dev, phandle_t xref, int ncells,
pcell_t *cells, intptr_t *id);
void hwreset_register_ofw_provider(device_t provider_dev);
void hwreset_unregister_ofw_provider(device_t provider_dev);
#endif
/*
* Consumer interface
*/
int hwreset_get_by_id(device_t consumer_dev, device_t provider_dev, intptr_t id,
hwreset_t *rst);
void hwreset_release(hwreset_t rst);
int hwreset_assert(hwreset_t rst);
int hwreset_deassert(hwreset_t rst);
int hwreset_is_asserted(hwreset_t rst, bool *value);
#ifdef FDT
int hwreset_get_by_ofw_name(device_t consumer_dev, phandle_t node, char *name,
hwreset_t *rst);
int hwreset_get_by_ofw_idx(device_t consumer_dev, phandle_t node, int idx,
hwreset_t *rst);
#endif
#endif /* DEV_EXTRES_HWRESET_HWRESET_H */