FreeBSD/Linux Kernel Cross Reference
sys/kern/cpufreq_if.m
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: src/sys/kern/cpufreq_if.m,v 1.2 2005/02/18 00:23:36 njl Exp $
27 #
28
29 #include <sys/bus.h>
30
31 INTERFACE cpufreq;
32
33 HEADER {
34 struct cf_level;
35 struct cf_setting;
36 };
37
38 # cpufreq interface methods
39
40 #
41 # Set the current CPU frequency level.
42 #
43 METHOD 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 #
52 METHOD 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 #
60 METHOD 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 #
71 METHOD int drv_set {
72 device_t dev;
73 const struct cf_setting *set;
74 };
75
76 #
77 # Get an individual driver's setting.
78 #
79 METHOD int drv_get {
80 device_t dev;
81 struct cf_setting *set;
82 };
83
84 #
85 # Get the settings supported by a driver.
86 #
87 METHOD 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 #
96 METHOD int drv_type {
97 device_t dev;
98 int *type;
99 };
100
|