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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _PIC16F819_REG_H
#define _PIC16F819_REG_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
#define PIC16F819_FAN_PERIOD_MSB_REGISTER 3
#define PIC16F819_FAN_PERIOD_LSB_REGISTER 2
#define PIC16F819_STATUS_REGISTER 1
#define PIC16F819_COMMAND_REGISTER 0
#define PIC16F819_DEBUG_REGISTER 9
#define PIC16F819_FAN_STATUS_MASK 0x7
#define PIC16F819_FAN_FAULT 0x1
#define PIC16F819_FAN_FAULT_CLEAR 0x4
#define PIC16F819_SW_AWARE_MODE 0x2
#define PIC16F819_FAN_FAULT_LATCHED 0x2
#define PIC16F819_FAN_FAILED 0x8
/*
* The actual formula is ((CLK_FREQ * 60)/ (tach period * 4)
* tach period is multiplied by 4 because we get 4 tach pulses per
* revolution.
* tach period is the number of clks we count per tach pulse.
*/
#define PIC16F819_FAN_TACH_TO_RPM(tach) \
((327000 * 15)/tach)
#define MAX_RETRIES_FOR_PIC16F819_REG_READ 5
#ifdef __cplusplus
}
#endif
#endif /* _PIC16F819_REG_H */
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