1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _PIC16F819_REG_H 28 #define _PIC16F819_REG_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 #define PIC16F819_FAN_PERIOD_MSB_REGISTER 3 37 #define PIC16F819_FAN_PERIOD_LSB_REGISTER 2 38 #define PIC16F819_STATUS_REGISTER 1 39 #define PIC16F819_COMMAND_REGISTER 0 40 #define PIC16F819_DEBUG_REGISTER 9 41 #define PIC16F819_FAN_STATUS_MASK 0x7 42 #define PIC16F819_FAN_FAULT 0x1 43 #define PIC16F819_FAN_FAULT_CLEAR 0x4 44 #define PIC16F819_SW_AWARE_MODE 0x2 45 #define PIC16F819_FAN_FAULT_LATCHED 0x2 46 #define PIC16F819_FAN_FAILED 0x8 47 48 /* 49 * The actual formula is ((CLK_FREQ * 60)/ (tach period * 4) 50 * tach period is multiplied by 4 because we get 4 tach pulses per 51 * revolution. 52 * tach period is the number of clks we count per tach pulse. 53 */ 54 #define PIC16F819_FAN_TACH_TO_RPM(tach) \ 55 ((327000 * 15)/tach) 56 57 #define MAX_RETRIES_FOR_PIC16F819_REG_READ 5 58 59 #ifdef __cplusplus 60 } 61 #endif 62 63 #endif /* _PIC16F819_REG_H */ 64