clk_div.h revision 294660
1294660Smmel/*- 2294660Smmel * Copyright 2016 Michal Meloun <mmel@FreeBSD.org> 3294660Smmel * All rights reserved. 4294660Smmel * 5294660Smmel * Redistribution and use in source and binary forms, with or without 6294660Smmel * modification, are permitted provided that the following conditions 7294660Smmel * are met: 8294660Smmel * 1. Redistributions of source code must retain the above copyright 9294660Smmel * notice, this list of conditions and the following disclaimer. 10294660Smmel * 2. Redistributions in binary form must reproduce the above copyright 11294660Smmel * notice, this list of conditions and the following disclaimer in the 12294660Smmel * documentation and/or other materials provided with the distribution. 13294660Smmel * 14294660Smmel * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15294660Smmel * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16294660Smmel * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17294660Smmel * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18294660Smmel * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19294660Smmel * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20294660Smmel * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21294660Smmel * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22294660Smmel * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23294660Smmel * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24294660Smmel * SUCH DAMAGE. 25294660Smmel * 26294660Smmel * $FreeBSD: head/sys/dev/extres/clk/clk_div.h 294660 2016-01-24 11:00:38Z mmel $ 27294660Smmel */ 28294660Smmel 29294660Smmel#ifndef _DEV_EXTRES_CLK_DIV_H_ 30294660Smmel#define _DEV_EXTRES_CLK_DIV_H_ 31294660Smmel 32294660Smmel#include <dev/extres/clk/clk.h> 33294660Smmel 34294660Smmel#define CLK_DIV_ZERO_BASED 0x0001 /* Zero based divider. */ 35294660Smmel 36294660Smmelstruct clk_div_def { 37294660Smmel struct clknode_init_def clkdef; 38294660Smmel uint32_t offset; /* Divider register offset */ 39294660Smmel uint32_t i_shift; /* Pos of div bits in reg */ 40294660Smmel uint32_t i_width; /* Width of div bit field */ 41294660Smmel uint32_t f_shift; /* Fractional divide bits, */ 42294660Smmel uint32_t f_width; /* set to 0 for int divider */ 43294660Smmel int div_flags; /* Divider-specific flags */ 44294660Smmel}; 45294660Smmel 46294660Smmelint clknode_div_register(struct clkdom *clkdom, struct clk_div_def *clkdef); 47294660Smmel 48294660Smmel#endif /*_DEV_EXTRES_CLK_DIV_H_*/ 49