1#-
2# Copyright 2016 Michal Meloun <mmel@FreeBSD.org>
3# All rights reserved.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions
7# are met:
8# 1. Redistributions of source code must retain the above copyright
9#    notice, this list of conditions and the following disclaimer.
10# 2. Redistributions in binary form must reproduce the above copyright
11#    notice, this list of conditions and the following disclaimer in the
12#    documentation and/or other materials provided with the distribution.
13#
14# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24# SUCH DAMAGE.
25#
26# $FreeBSD: releng/11.0/sys/dev/extres/clk/clknode_if.m 294660 2016-01-24 11:00:38Z mmel $
27#
28
29INTERFACE clknode;
30
31HEADER {
32	struct clknode;
33}
34
35#
36# Initialize clock node, get shanpshot of cached values
37#
38METHOD int init {
39	struct clknode	*clk;
40	device_t	dev;
41};
42
43#
44# Recalculate frequency
45#     req - in/out recalulated frequency
46#
47METHOD int recalc_freq {
48	struct clknode	*clk;
49	uint64_t	*freq;
50};
51
52#
53# Set frequency
54#     fin - parent (input)frequency.
55#     fout - requested output freqency. If clock cannot change frequency,
56#	    then must return new requested frequency for his parent
57METHOD int set_freq {
58	struct clknode	*clk;
59	uint64_t	fin;
60	uint64_t	*fout;
61	int		flags;
62	int		*done;
63};
64
65#
66# Enable/disable clock
67#
68METHOD int set_gate {
69	struct clknode	*clk;
70	bool		enable;
71};
72
73#
74# Set multiplexer
75#
76METHOD int set_mux {
77	struct clknode	*clk;
78	int		idx;
79};
80