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