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vme_two_68k.c revision 1.5 
      1 /*	$NetBSD: vme_two_68k.c,v 1.5 2002/10/02 05:28:15 thorpej 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 CFATTACH_DECL(vmetwo, sizeof(struct vmetwo_softc),
     75     vmetwo_match, vmetwo_attach, NULL, NULL);
     76 extern struct cfdriver vmetwo_cd;
     77 
     78 
     79 /* ARGSUSED */
     80 int
     81 vmetwo_match(parent, cf, aux)
     82 	struct device *parent;
     83 	struct cfdata *cf;
     84 	void *aux;
     85 {
     86 	struct mainbus_attach_args *ma;
     87 	static int matched = 0;
     88 
     89 	ma = aux;
     90 
     91 	if (strcmp(ma->ma_name, vmetwo_cd.cd_name))
     92 		return (0);
     93 
     94 	/* Only one VMEchip2, please. */
     95 	if (matched++)
     96 		return (0);
     97 
     98 	/*
     99 	 * Some mvme1[67]2 boards have a `no VMEchip2' build option...
    100 	 */
    101 	return (vmetwo_probe(ma->ma_bust, ma->ma_offset) ? 1 : 0);
    102 }
    103 
    104 /* ARGSUSED */
    105 void
    106 vmetwo_attach(parent, self, aux)
    107 	struct device *parent;
    108 	struct device *self;
    109 	void *aux;
    110 {
    111 	struct mainbus_attach_args *ma;
    112 	struct vmetwo_softc *sc;
    113 
    114 	sc = (struct vmetwo_softc *) self;
    115 	ma = aux;
    116 
    117 	/*
    118 	 * Map the local control registers
    119 	 */
    120 	bus_space_map(ma->ma_bust, ma->ma_offset + VME2REG_LCSR_OFFSET,
    121 	    VME2LCSR_SIZE, 0, &sc->sc_lcrh);
    122 
    123 #ifdef notyet
    124 	/*
    125 	 * Map the global control registers
    126 	 */
    127 	bus_space_map(ma->ma_bust, ma->ma_offset + VME2REG_GCSR_OFFSET,
    128 	    VME2GCSR_SIZE, 0, &sc->sc_gcrh);
    129 #endif
    130 
    131 	/* Initialise stuff for the common vme_two back-end */
    132 	sc->sc_mvmebus.sc_bust = ma->ma_bust;
    133 	sc->sc_mvmebus.sc_dmat = ma->ma_dmat;
    134 
    135 	vmetwo_init(sc);
    136 }
    137 
    138 #endif	/* NVMETWO > 0 */
    139 
    140 void
    141 vmetwo_md_intr_init(sc)
    142 	struct vmetwo_softc *sc;
    143 {
    144 
    145 	sc->sc_isrlink = vmetwoisrlink;
    146 	sc->sc_isrunlink = vmetwoisrunlink;
    147 	sc->sc_isrevcnt = vmetwoisrevcnt;
    148 }
    149 
    150 /* ARGSUSED */
    151 static void
    152 vmetwoisrlink(cookie, fn, arg, ipl, vec, evcnt)
    153 	void *cookie;
    154 	int (*fn)(void *);
    155 	void *arg;
    156 	int ipl, vec;
    157 	struct evcnt *evcnt;
    158 {
    159 
    160 	isrlink_vectored(fn, arg, ipl, vec, evcnt);
    161 }
    162 
    163 /* ARGSUSED */
    164 static void
    165 vmetwoisrunlink(cookie, vec)
    166 	void *cookie;
    167 	int vec;
    168 {
    169 
    170 	isrunlink_vectored(vec);
    171 }
    172 
    173 /* ARGSUSED */
    174 static struct evcnt *
    175 vmetwoisrevcnt(cookie, ipl)
    176 	void *cookie;
    177 	int ipl;
    178 {
    179 
    180 	return (isrlink_evcnt(ipl));
    181 }
    182