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/* $OpenBSD: ofw_clock.h,v 1.2 2016/08/22 11:23:54 kettenis Exp $ */
/*
* Copyright (c) 2016 Mark Kettenis
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _DEV_OFW_CLOCK_H_
#define _DEV_OFW_CLOCK_H_
struct clock_device {
int cd_node;
void *cd_cookie;
uint32_t (*cd_get_frequency)(void *, uint32_t *);
void (*cd_enable)(void *, uint32_t *, int);
LIST_ENTRY(clock_device) cd_list;
uint32_t cd_phandle;
uint32_t cd_cells;
};
void clock_register(struct clock_device *);
uint32_t clock_get_frequency(int, const char *);
uint32_t clock_get_frequency_idx(int, int);
void clock_enable(int, const char *);
void clock_enable_idx(int, int);
void clock_disable(int, const char *);
void clock_disable_idx(int, int);
static inline void
clock_enable_all(int node)
{
clock_enable_idx(node, -1);
}
static inline void
clock_disable_all(int node)
{
clock_disable_idx(node, -1);
}
#endif /* _DEV_OFW_CLOCK_H_ */
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