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# 27 28INTERFACE clknode; 29 30HEADER { 31 struct clknode; 32} 33 34# 35# Initialize clock node, get shanpshot of cached values 36# 37METHOD int init { 38 struct clknode *clk; 39 device_t dev; 40}; 41 42# 43# Recalculate frequency 44# req - in/out recalulated frequency 45# 46METHOD int recalc_freq { 47 struct clknode *clk; 48 uint64_t *freq; 49}; 50 51# 52# Set frequency 53# fin - parent (input)frequency. 54# fout - requested output freqency. If clock cannot change frequency, 55# then must return new requested frequency for his parent 56METHOD int set_freq { 57 struct clknode *clk; 58 uint64_t fin; 59 uint64_t *fout; 60 int flags; 61 int *done; 62}; 63 64# 65# Enable/disable clock 66# 67METHOD int set_gate { 68 struct clknode *clk; 69 bool enable; 70}; 71 72# 73# Get gate status 74# Return: ENXIO - method is not implemented 75# ENOENT - HW doesn't support reading of gate enable 76# 0 - success 77# 78METHOD int get_gate { 79 struct clknode *clk; 80 bool *enabled; 81}; 82 83# 84# Set multiplexer 85# 86METHOD int set_mux { 87 struct clknode *clk; 88 int idx; 89}; 90