1 /*- 2 * Copyright (c) 2015 M. Warner Losh <imp@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice unmodified, this list of conditions, and the following 10 * 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 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef DEV_OW_OWLL_H 30 #define DEV_OW_OWLL_H 1 31 32 /* 33 * Generalized parameters for the mode of operation in the bus. All units 34 * are in nanoseconds, and assume that all timings are < 4s. 35 * See owll_if.m for timings, and refer to AN937 for details. 36 */ 37 struct ow_timing 38 { 39 uint32_t t_slot; /* Slot time */ 40 uint32_t t_low0; /* Time low for a 0 bit. */ 41 uint32_t t_low1; /* Time low for a 1 bit. */ 42 uint32_t t_lowr; /* Time slave holds line down per bit */ 43 uint32_t t_release; /* Time after t_rdv to float high */ 44 uint32_t t_rec; /* After sample before M low */ 45 uint32_t t_rdv; /* Time to poll the bit after M low */ 46 uint32_t t_rstl; /* Time M low on reset */ 47 uint32_t t_rsth; /* Time M high on reset */ 48 uint32_t t_pdl; /* Time S low on reset */ 49 uint32_t t_pdh; /* Time R high after M low on reset */ 50 }; 51 52 #include "owll_if.h" 53 54 #endif /* DEV_OW_OWLL_H */ 55