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