owll.h

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    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 */

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FreeBSD/Linux Kernel Cross Reference sys/dev/ow/owll.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/ow/owll.h