sys/dev/ic/mk48txxvar.h

   1 /*      $NetBSD: mk48txxvar.h,v 1.5 2008/03/29 07:20:01 tsutsui Exp $ */
   2 /*-
   3  * Copyright (c) 2000 The NetBSD Foundation, Inc.
   4  * All rights reserved.
   5  *
   6  * This code is derived from software contributed to The NetBSD Foundation
   7  * by Paul Kranenburg.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 struct mk48txx_softc;
  32
  33 typedef uint8_t (*mk48txx_nvrd_t)(struct mk48txx_softc *, int);
  34 typedef void (*mk48txx_nvwr_t)(struct mk48txx_softc *, int, uint8_t);
  35
  36 struct mk48txx_softc {
  37         device_t        sc_dev;
  38
  39         bus_space_tag_t sc_bst;         /* bus tag & handle */
  40         bus_space_handle_t sc_bsh;      /* */
  41
  42         struct todr_chip_handle sc_handle; /* TODR handle */
  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;       /* What year is represented on
  47                                            the system by the chip's year
  48                                            counter at 0 */
  49         u_int           sc_flag;
  50 #define MK48TXX_NO_CENT_ADJUST  0x0001
  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 void mk48txx_attach(struct mk48txx_softc *);
  58
  59 /* Retrieve size of the on-chip NVRAM area */
  60 int     mk48txx_get_nvram_size(todr_chip_handle_t, bus_size_t *);