104 lines
3.5 KiB
C
104 lines
3.5 KiB
C
/* $NetBSD: dma_obio.c,v 1.9 2005/11/16 00:49:03 uwe Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Paul Kranenburg.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: dma_obio.c,v 1.9 2005/11/16 00:49:03 uwe Exp $");
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/errno.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <machine/bus.h>
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#include <machine/autoconf.h>
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#include <machine/cpu.h>
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#include <dev/sbus/sbusvar.h>
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#include <dev/ic/lsi64854reg.h>
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#include <dev/ic/lsi64854var.h>
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int dmamatch_obio(struct device *, struct cfdata *, void *);
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void dmaattach_obio(struct device *, struct device *, void *);
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CFATTACH_DECL(dma_obio, sizeof(struct lsi64854_softc),
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dmamatch_obio, dmaattach_obio, NULL, NULL);
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int
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dmamatch_obio(struct device *parent, struct cfdata *cf, void *aux)
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{
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union obio_attach_args *uoba = aux;
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struct obio4_attach_args *oba;
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if (uoba->uoba_isobio4 == 0)
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return (0);
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oba = &uoba->uoba_oba4;
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return (bus_space_probe(oba->oba_bustag, oba->oba_paddr,
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4, /* probe size */
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0, /* offset */
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0, /* flags */
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NULL, NULL));
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}
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void
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dmaattach_obio(struct device *parent, struct device *self, void *aux)
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{
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union obio_attach_args *uoba = aux;
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struct obio4_attach_args *oba = &uoba->uoba_oba4;
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struct lsi64854_softc *sc = (void *)self;
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sc->sc_bustag = oba->oba_bustag;
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sc->sc_dmatag = oba->oba_dmatag;
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if (bus_space_map(oba->oba_bustag, oba->oba_paddr,
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4 * sizeof(uint32_t),
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0, &sc->sc_regs) != 0) {
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printf("dmaattach_obio: cannot map registers\n");
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return;
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}
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/* Any point in setting `sc_burst' to anything here? */
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sc->sc_channel = L64854_CHANNEL_SCSI;
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lsi64854_attach(sc);
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}
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