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      1 /*	$NetBSD: mk48txxvar.h,v 1.7 2011/01/04 01:28:15 matt 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 #define MK48TXX_HAVE_CENT_REG	0x0002
     52 
     53 	mk48txx_nvrd_t	sc_nvrd;	/* NVRAM/RTC read function */
     54 	mk48txx_nvwr_t	sc_nvwr;	/* NVRAM/RTC write function */
     55 };
     56 
     57 /* Chip attach function */
     58 void mk48txx_attach(struct mk48txx_softc *);
     59 
     60 /* Retrieve size of the on-chip NVRAM area */
     61 int	mk48txx_get_nvram_size(todr_chip_handle_t, bus_size_t *);
     62