1# 2# Copyright (c) 2004 Nate Lawson 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# $FreeBSD$ 27# 28 29#include <sys/bus.h> 30 31INTERFACE cpufreq; 32 33HEADER { 34 struct cf_level; 35 struct cf_setting; 36}; 37 38# cpufreq interface methods 39 40# 41# Set the current CPU frequency level. 42# 43METHOD int set { 44 device_t dev; 45 const struct cf_level *level; 46 int priority; 47}; 48 49# 50# Get the current active level. 51# 52METHOD int get { 53 device_t dev; 54 struct cf_level *level; 55}; 56 57# 58# Get the current possible levels, based on all drivers. 59# 60METHOD int levels { 61 device_t dev; 62 struct cf_level *levels; 63 int *count; 64}; 65 66# Individual frequency driver methods 67 68# 69# Set an individual driver's setting. 70# 71METHOD int drv_set { 72 device_t dev; 73 const struct cf_setting *set; 74}; 75 76# 77# Get an individual driver's setting. 78# 79METHOD int drv_get { 80 device_t dev; 81 struct cf_setting *set; 82}; 83 84# 85# Get the settings supported by a driver. 86# 87METHOD int drv_settings { 88 device_t dev; 89 struct cf_setting *sets; 90 int *count; 91}; 92 93# 94# Get an individual driver's type. 95# 96METHOD int drv_type { 97 device_t dev; 98 int *type; 99}; 100 101