NetBSD/sys/dev/bi/bi.c

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/* $NetBSD: bi.c,v 1.13 1999/08/04 19:12:22 ragge Exp $ */
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/*
* Copyright (c) 1996 Ludd, University of Lule}, Sweden.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed at Ludd, University of
* Lule}, Sweden and its contributors.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* VAXBI specific routines.
*/
/*
* TODO
* handle BIbus errors more gracefully.
*/
#include <sys/param.h>
#include <sys/systm.h>
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#include <machine/bus.h>
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#include <machine/cpu.h>
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#include <dev/bi/bireg.h>
#include <dev/bi/bivar.h>
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static int bi_print __P((void *, const char *));
struct bi_list bi_list[] = {
{BIDT_MS820, 1, "ms820"},
{BIDT_DRB32, 0, "drb32"},
{BIDT_DWBUA, 0, "dwbua"},
{BIDT_KLESI, 0, "klesi"},
{BIDT_KA820, 1, "ka820"},
{BIDT_DB88, 0, "db88"},
{BIDT_CIBCA, 0, "cibca"},
{BIDT_DMB32, 0, "dmb32"},
{BIDT_CIBCI, 0, "cibci"},
{BIDT_KA800, 0, "ka800"},
{BIDT_KDB50, 0, "kdb50"},
{BIDT_DWMBA, 0, "dwmba"},
{BIDT_KFBTA, 0, "kfbta"},
{BIDT_DEBNK, 0, "debnk"},
{BIDT_DEBNA, 0, "debna"},
{0,0,0}
};
int
bi_print(aux, name)
void *aux;
const char *name;
{
struct bi_attach_args *ba = aux;
struct bi_list *bl;
for (bl = &bi_list[0]; bl->bl_nr; bl++)
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if (bl->bl_nr == bus_space_read_2(ba->ba_iot, ba->ba_ioh, 0))
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break;
if (name) {
if (bl->bl_nr == 0)
printf("unknown device 0x%x",
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bus_space_read_2(ba->ba_iot, ba->ba_ioh, 0));
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else
printf(bl->bl_name);
printf(" at %s", name);
}
printf(" node %d", ba->ba_nodenr);
#ifdef DEBUG
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if (bus_space_read_4(ba->ba_iot, ba->ba_ioh, BIREG_SADR) &&
bus_space_read_4(ba->ba_iot, ba->ba_ioh, BIREG_EADR))
printf(" [sadr %x eadr %x]",
bus_space_read_4(ba->ba_iot, ba->ba_ioh, BIREG_SADR),
bus_space_read_4(ba->ba_iot, ba->ba_ioh, BIREG_EADR));
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#endif
return bl->bl_havedriver ? UNCONF : UNSUPP;
}
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static int lastiv = 0;
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void
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bi_attach(sc)
struct bi_softc *sc;
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{
struct bi_attach_args ba;
int nodenr;
printf("\n");
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ba.ba_iot = sc->sc_iot;
ba.ba_busnr = sc->sc_busnr;
/*
* Interrupt numbers. All vectors from 256-512 are free, use
* them for BI devices and just count them up.
* Above 512 are only interrupt vectors for unibus devices.
* Is it realistic with more than 64 BI devices???
*/
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for (nodenr = 0; nodenr < NNODEBI; nodenr++) {
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if (bus_space_map(sc->sc_iot, sc->sc_addr + BI_NODE(nodenr),
NODESIZE, 0, &ba.ba_ioh)) {
printf("bi_attach: bus_space_map failed, node %d\n",
nodenr);
return;
}
if (badaddr((caddr_t)ba.ba_ioh, 4)) {
bus_space_unmap(sc->sc_iot, ba.ba_ioh, NODESIZE);
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} else {
ba.ba_nodenr = nodenr;
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ba.ba_ivec = 256 + lastiv;
lastiv += 4;
config_found(&sc->sc_dev, &ba, bi_print);
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}
}
}