NetBSD/sys/dev/i2c/g760areg.h

54 lines
2.1 KiB
C

/* $NetBSD: g760areg.h,v 1.1 2010/10/02 06:07:37 kiyohara Exp $ */
/*-
* Copyright (C) 2008 A.Leo.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _DEV_I2C_G760aREG_H_
#define _DEV_I2C_G760aREG_H_
#define G760A_ADDR 0x3e
#define G760A_REG_SET_CNT 0x00 /* RW, Programmed fan speed
register, it contains the
count number of the
desired fan speed. */
#define G760A_REG_ACT_CNT 0x01 /* RO, Actual fan speed. */
#define G760A_REG_FAN_STA 0x02 /* RO, Fan status. */
#define G760A_REG_FAN_STA_MASK 0x03u /* 2 lower bits */
#define G760A_CLK 32768
#define G760A_P 2
#define G760A_N2RPM(a) (G760A_CLK*30/G760A_P/(a))
#define G760A_RPM2N(a) (G760A_CLK*30/G760A_P/(a)) /* wow */
#endif /* !_DEV_I2C_G760AREG_H_ */