xref: /netbsd/sys/dev/i2c/g760areg.h (revision 6550d01e)
1 /*	$NetBSD: g760areg.h,v 1.1 2010/10/02 06:07:37 kiyohara Exp $	*/
2 
3 /*-
4  * Copyright (C) 2008 A.Leo.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. The name of the author may not be used to endorse or promote products
15  *    derived from this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 
30 #ifndef _DEV_I2C_G760aREG_H_
31 #define _DEV_I2C_G760aREG_H_
32 
33 #define	G760A_ADDR			0x3e
34 
35 #define	G760A_REG_SET_CNT		0x00	/* RW, Programmed fan speed
36 						   register, it contains the
37 						   count number of the
38 						   desired fan speed. */
39 
40 #define	G760A_REG_ACT_CNT		0x01	/* RO, Actual fan speed. */
41 #define	G760A_REG_FAN_STA		0x02	/* RO, Fan status. */
42 #define G760A_REG_FAN_STA_MASK		0x03u	/* 2 lower bits */
43 
44 #define G760A_CLK			32768
45 #define G760A_P				2
46 
47 
48 
49 #define G760A_N2RPM(a)			(G760A_CLK*30/G760A_P/(a))
50 #define G760A_RPM2N(a)			(G760A_CLK*30/G760A_P/(a))     /* wow */
51 
52 
53 #endif /* !_DEV_I2C_G760AREG_H_ */
54