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vme_two_68k.c revision 1.2 
      1 /*	$NetBSD: vme_two_68k.c,v 1.2 2002/03/24 17:22:33 scw Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999, 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Steve C. Woodford.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * Front-end for the VMEchip2 found on the MVME-1[67][27] boards.
     41  */
     42 
     43 #include "vmetwo.h"
     44 
     45 #include <sys/param.h>
     46 #include <sys/kernel.h>
     47 #include <sys/systm.h>
     48 #include <sys/device.h>
     49 
     50 #include <machine/cpu.h>
     51 #include <machine/bus.h>
     52 
     53 #include <dev/vme/vmereg.h>
     54 #include <dev/vme/vmevar.h>
     55 
     56 #include <mvme68k/mvme68k/isr.h>
     57 #include <mvme68k/dev/mainbus.h>
     58 
     59 #include <dev/mvme/mvmebus.h>
     60 #include <dev/mvme/vme_tworeg.h>
     61 #include <dev/mvme/vme_twovar.h>
     62 
     63 
     64 static void vmetwoisrlink(void *, int (*)(void *), void *,
     65 	int, int, struct evcnt *);
     66 static void vmetwoisrunlink(void *, int);
     67 static struct evcnt *vmetwoisrevcnt(void *, int);
     68 
     69 #if NVMETWO > 0
     70 
     71 int vmetwo_match __P((struct device *, struct cfdata *, void *));
     72 void vmetwo_attach __P((struct device *, struct device *, void *));
     73 
     74 struct cfattach vmetwo_ca = {
     75 	sizeof(struct vmetwo_softc), vmetwo_match, vmetwo_attach
     76 };
     77 struct cfdriver vmetwo_cd;
     78 
     79 
     80 /* ARGSUSED */
     81 int
     82 vmetwo_match(parent, cf, aux)
     83 	struct device *parent;
     84 	struct cfdata *cf;
     85 	void *aux;
     86 {
     87 	struct mainbus_attach_args *ma;
     88 	static int matched = 0;
     89 
     90 	ma = aux;
     91 
     92 	if (strcmp(ma->ma_name, vmetwo_cd.cd_name))
     93 		return (0);
     94 
     95 	/* Only one VMEchip2, please. */
     96 	if (matched++)
     97 		return (0);
     98 
     99 	/*
    100 	 * Some mvme1[67]2 boards have a `no VMEchip2' build option...
    101 	 */
    102 	return (vmetwo_probe(ma->ma_bust, ma->ma_offset) ? 1 : 0);
    103 }
    104 
    105 /* ARGSUSED */
    106 void
    107 vmetwo_attach(parent, self, aux)
    108 	struct device *parent;
    109 	struct device *self;
    110 	void *aux;
    111 {
    112 	struct mainbus_attach_args *ma;
    113 	struct vmetwo_softc *sc;
    114 
    115 	sc = (struct vmetwo_softc *) self;
    116 	ma = aux;
    117 
    118 	/*
    119 	 * Map the local control registers
    120 	 */
    121 	bus_space_map(ma->ma_bust, ma->ma_offset + VME2REG_LCSR_OFFSET,
    122 	    VME2LCSR_SIZE, 0, &sc->sc_lcrh);
    123 
    124 #ifdef notyet
    125 	/*
    126 	 * Map the global control registers
    127 	 */
    128 	bus_space_map(ma->ma_bust, ma->ma_offset + VME2REG_GCSR_OFFSET,
    129 	    VME2GCSR_SIZE, 0, &sc->sc_gcrh);
    130 #endif
    131 
    132 	/* Initialise stuff for the common vme_two back-end */
    133 	sc->sc_mvmebus.sc_bust = ma->ma_bust;
    134 	sc->sc_mvmebus.sc_dmat = ma->ma_dmat;
    135 
    136 	vmetwo_init(sc);
    137 }
    138 
    139 #endif	/* NVMETWO > 0 */
    140 
    141 void
    142 vmetwo_md_intr_init(sc)
    143 	struct vmetwo_softc *sc;
    144 {
    145 
    146 	sc->sc_isrlink = vmetwoisrlink;
    147 	sc->sc_isrunlink = vmetwoisrunlink;
    148 	sc->sc_isrevcnt = vmetwoisrevcnt;
    149 }
    150 
    151 /* ARGSUSED */
    152 static void
    153 vmetwoisrlink(cookie, fn, arg, ipl, vec, evcnt)
    154 	void *cookie;
    155 	int (*fn)(void *);
    156 	void *arg;
    157 	int ipl, vec;
    158 	struct evcnt *evcnt;
    159 {
    160 
    161 	isrlink_vectored(fn, arg, ipl, vec, evcnt);
    162 }
    163 
    164 /* ARGSUSED */
    165 static void
    166 vmetwoisrunlink(cookie, vec)
    167 	void *cookie;
    168 	int vec;
    169 {
    170 
    171 	isrunlink_vectored(vec);
    172 }
    173 
    174 /* ARGSUSED */
    175 static struct evcnt *
    176 vmetwoisrevcnt(cookie, ipl)
    177 	void *cookie;
    178 	int ipl;
    179 {
    180 
    181 	return (isrlink_evcnt(ipl));
    182 }
    183