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bha_eisa.c revision 1.7 
      1 /*	$NetBSD: bha_eisa.c,v 1.7 1997/03/28 23:47:15 mycroft Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1994, 1996, 1997 Charles M. Hannum.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by Charles M. Hannum.
     17  * 4. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/types.h>
     33 #include <sys/param.h>
     34 #include <sys/systm.h>
     35 #include <sys/device.h>
     36 
     37 #include <machine/bus.h>
     38 #include <machine/intr.h>
     39 
     40 #include <scsi/scsi_all.h>
     41 #include <scsi/scsiconf.h>
     42 
     43 #include <dev/eisa/eisavar.h>
     44 #include <dev/eisa/eisadevs.h>
     45 
     46 #include <dev/ic/bhareg.h>
     47 #include <dev/ic/bhavar.h>
     48 
     49 #define	BHA_EISA_SLOT_OFFSET	0xc00
     50 #define	BHA_EISA_IOSIZE		0x100
     51 
     52 #ifdef  __BROKEN_INDIRECT_CONFIG
     53 int	bha_eisa_match __P((struct device *, void *, void *));
     54 #else
     55 int	bha_eisa_match __P((struct device *, struct cfdata *, void *));
     56 #endif
     57 void	bha_eisa_attach __P((struct device *, struct device *, void *));
     58 
     59 struct cfattach bha_eisa_ca = {
     60 	sizeof(struct bha_softc), bha_eisa_match, bha_eisa_attach
     61 };
     62 
     63 /*
     64  * Check the slots looking for a board we recognise
     65  * If we find one, note it's address (slot) and call
     66  * the actual probe routine to check it out.
     67  */
     68 int
     69 bha_eisa_match(parent, match, aux)
     70 	struct device *parent;
     71 #ifdef __BROKEN_INDIRECT_CONFIG
     72 	void *match;
     73 #else
     74 	struct cfdata *match;
     75 #endif
     76 	void *aux;
     77 {
     78 	struct eisa_attach_args *ea = aux;
     79 	bus_space_tag_t iot = ea->ea_iot;
     80 	bus_space_handle_t ioh;
     81 	int rv;
     82 
     83 	/* must match one of our known ID strings */
     84 	if (strcmp(ea->ea_idstring, "BUS4201") &&
     85 	    strcmp(ea->ea_idstring, "BUS4202"))
     86 		return (0);
     87 
     88 	if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) +
     89 	    BHA_EISA_SLOT_OFFSET, BHA_EISA_IOSIZE, 0, &ioh))
     90 		return (0);
     91 
     92 	rv = bha_find(iot, ioh, NULL);
     93 
     94 	bus_space_unmap(iot, ioh, BHA_EISA_IOSIZE);
     95 
     96 	return (rv);
     97 }
     98 
     99 /*
    100  * Attach all the sub-devices we can find
    101  */
    102 void
    103 bha_eisa_attach(parent, self, aux)
    104 	struct device *parent, *self;
    105 	void *aux;
    106 {
    107 	struct eisa_attach_args *ea = aux;
    108 	struct bha_softc *sc = (void *)self;
    109 	bus_space_tag_t iot = ea->ea_iot;
    110 	bus_space_handle_t ioh;
    111 	struct bha_probe_data bpd;
    112 	eisa_chipset_tag_t ec = ea->ea_ec;
    113 	eisa_intr_handle_t ih;
    114 	const char *model, *intrstr;
    115 
    116 	if (!strcmp(ea->ea_idstring, "BUS4201"))
    117 		model = EISA_PRODUCT_BUS4201;
    118 	else if (!strcmp(ea->ea_idstring, "BUS4202"))
    119 		model = EISA_PRODUCT_BUS4202;
    120 	else
    121 		model = "unknown model!";
    122 	printf(": %s\n", model);
    123 
    124 	if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) +
    125 	    BHA_EISA_SLOT_OFFSET, BHA_EISA_IOSIZE, 0, &ioh))
    126 		panic("bha_eisa_attach: could not map I/O addresses");
    127 
    128 	sc->sc_iot = iot;
    129 	sc->sc_ioh = ioh;
    130 	if (!bha_find(iot, ioh, &bpd))
    131 		panic("bha_eisa_attach: bha_find failed");
    132 
    133 	if (eisa_intr_map(ec, bpd.sc_irq, &ih)) {
    134 		printf("%s: couldn't map interrupt (%d)\n",
    135 		    sc->sc_dev.dv_xname, bpd.sc_irq);
    136 		return;
    137 	}
    138 	intrstr = eisa_intr_string(ec, ih);
    139 	sc->sc_ih = eisa_intr_establish(ec, ih, IST_LEVEL, IPL_BIO,
    140 	    bha_intr, sc);
    141 	if (sc->sc_ih == NULL) {
    142 		printf("%s: couldn't establish interrupt",
    143 		    sc->sc_dev.dv_xname);
    144 		if (intrstr != NULL)
    145 			printf(" at %s", intrstr);
    146 		printf("\n");
    147 		return;
    148 	}
    149 	printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
    150 
    151 	bha_attach(sc, &bpd);
    152 }
    153