/* $NetBSD: syscon.h,v 1.2 2020/12/11 09:40:28 skrll Exp $ */
/*-
* Copyright (c) 2018 Jared McNeill <
[email protected]>
* 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.
*/
#ifndef _DEV_FDT_SYSCON_H_
#define _DEV_FDT_SYSCON_H_
struct syscon {
void *priv;
void (*lock)(void *);
void (*unlock)(void *);
uint32_t (*read_4)(void *, bus_size_t);
void (*write_4)(void *, bus_size_t, uint32_t);
};
#define syscon_lock(_syscon) \
(_syscon)->lock((_syscon)->priv)
#define syscon_unlock(_syscon) \
(_syscon)->unlock((_syscon)->priv)
#define syscon_read_4(_syscon, _reg) \
(_syscon)->read_4((_syscon)->priv, (_reg))
#define syscon_write_4(_syscon, _reg, _val) \
(_syscon)->write_4((_syscon)->priv, (_reg), (_val))
#endif /* _DEV_FDT_SYSCON_H_ */
