The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/mk48txx/mk48txxvar.h

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    1 /*-
    2  * Copyright (c) 2000 The NetBSD Foundation, Inc.
    3  * All rights reserved.
    4  *
    5  * This code is derived from software contributed to The NetBSD Foundation
    6  * by Paul Kranenburg.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   20  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   25  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   27  * POSSIBILITY OF SUCH DAMAGE.
   28  *
   29  *      $NetBSD: mk48txxvar.h,v 1.6 2008/04/28 20:23:50 martin Exp $
   30  *
   31  * $FreeBSD$
   32  */
   33 
   34 typedef uint8_t (*mk48txx_nvrd_t)(device_t dev, int off);
   35 typedef void (*mk48txx_nvwr_t)(device_t dev, int off, uint8_t v);
   36 
   37 struct mk48txx_softc {
   38         struct resource         *sc_res;/* bus resource */
   39 
   40         struct mtx              sc_mtx; /* hardware mutex */
   41         eventhandler_tag        sc_wet; /* watchdog event handler tag */
   42 
   43         const char      *sc_model;      /* chip model name */
   44         bus_size_t      sc_nvramsz;     /* Size of NVRAM on the chip */
   45         bus_size_t      sc_clkoffset;   /* Offset in NVRAM to clock bits */
   46         u_int           sc_year0;       /* year counter offset */
   47         u_int           sc_flag;        /* MD flags */
   48 #define MK48TXX_NO_CENT_ADJUST  0x0001  /* don't manually adjust century */
   49 #define MK48TXX_WDOG_REGISTER   0x0002  /* register watchdog */
   50 #define MK48TXX_WDOG_ENABLE_WDS 0x0004  /* enable watchdog steering bit */
   51 
   52         mk48txx_nvrd_t  sc_nvrd;        /* NVRAM/RTC read function */
   53         mk48txx_nvwr_t  sc_nvwr;        /* NVRAM/RTC write function */
   54 };
   55 
   56 /* Chip attach function */
   57 int mk48txx_attach(device_t dev);
   58 
   59 /* Methods for the clock interface */
   60 int mk48txx_gettime(device_t dev, struct timespec *ts);
   61 int mk48txx_settime(device_t dev, struct timespec *ts);

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