xref: /freebsd/sys/powerpc/powermac/powermac_thermal.h (revision a64729f5077d77e13b9497cb33ecb3c82e606ee8)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2009-2011 Nathan Whitehorn
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #ifndef _POWERPC_POWERMAC_POWERMAC_THERMAL_H
30 #define _POWERPC_POWERMAC_POWERMAC_THERMAL_H
31 
32 #define ZERO_C_TO_K 2731
33 
34 struct pmac_fan {
35 	int min_rpm, max_rpm, default_rpm;
36 
37 	char name[32];
38 	int zone;
39 
40 	int (*read)(struct pmac_fan *);
41 	int (*set)(struct pmac_fan *, int value);
42 };
43 
44 struct pmac_therm {
45 	int target_temp, max_temp;	/* Tenths of a degree K */
46 
47 	char name[32];
48 	int zone;
49 
50 	int (*read)(struct pmac_therm *);
51 };
52 
53 void pmac_thermal_fan_register(struct pmac_fan *);
54 void pmac_thermal_sensor_register(struct pmac_therm *);
55 
56 #endif
57