176 lines
5.6 KiB
C
176 lines
5.6 KiB
C
/* $NetBSD: oak.c,v 1.2 2001/05/26 20:53:53 bjh21 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 Mark Brinicombe of Causality Limited.
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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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/*
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* Oak SCSI 1 driver using the generic NCR5380 driver
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*
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* This driver is a bit crude, and only uses 8-bit PIO accesses to the
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* card. It looks like the card can support pseudo-DMA, and can
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* handle converting between the 5380's 8-bit data bus and the 16-bit
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* podule bus in the process. We support none of this cleverness.
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*
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* This card has to be polled: it doesn't have anything connected to
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* PIRQ*. This seems to be a common failing of Archimedes disc
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* controllers.
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*/
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#include <sys/param.h>
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__KERNEL_RCSID(0, "$NetBSD: oak.c,v 1.2 2001/05/26 20:53:53 bjh21 Exp $");
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <sys/buf.h>
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#include <dev/scsipi/scsi_all.h>
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#include <dev/scsipi/scsipi_all.h>
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#include <dev/scsipi/scsiconf.h>
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#include <dev/ic/ncr5380reg.h>
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#include <dev/ic/ncr5380var.h>
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#include <machine/bootconfig.h>
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#include <dev/podulebus/podulebus.h>
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#include <dev/podulebus/podules.h>
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void oak_attach (struct device *, struct device *, void *);
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int oak_match (struct device *, struct cfdata *, void *);
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/*
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* Oak SCSI 1 softc structure.
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*
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* Contains the generic ncr5380 device node, podule information and
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* global information required by the driver.
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*/
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struct oak_softc {
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struct ncr5380_softc sc_ncr5380;
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};
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struct cfattach oak_ca = {
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sizeof(struct oak_softc), oak_match, oak_attach
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};
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/*
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* Card probe function
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*
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* Just match the manufacturer and podule ID's
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*/
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int
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oak_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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struct podulebus_attach_args *pa = aux;
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if (matchpodule(pa, MANUFACTURER_OAK, PODULE_OAK_SCSI, -1) == 0)
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return(0);
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return(1);
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}
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/*
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* Card attach function
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*
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*/
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void
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oak_attach(struct device *parent, struct device *self, void *aux)
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{
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struct oak_softc *sc = (struct oak_softc *)self;
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struct podulebus_attach_args *pa = aux;
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u_char *iobase;
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char hi_option[sizeof(sc->sc_ncr5380.sc_dev.dv_xname) + 8];
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sc->sc_ncr5380.sc_flags |= NCR5380_FORCE_POLLING;
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sc->sc_ncr5380.sc_min_dma_len = 0;
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sc->sc_ncr5380.sc_no_disconnect = 0xff;
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sc->sc_ncr5380.sc_parity_disable = 0xff;
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sc->sc_ncr5380.sc_dma_alloc = NULL;
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sc->sc_ncr5380.sc_dma_free = NULL;
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sc->sc_ncr5380.sc_dma_poll = NULL;
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sc->sc_ncr5380.sc_dma_setup = NULL;
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sc->sc_ncr5380.sc_dma_start = NULL;
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sc->sc_ncr5380.sc_dma_eop = NULL;
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sc->sc_ncr5380.sc_dma_stop = NULL;
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sc->sc_ncr5380.sc_intr_on = NULL;
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sc->sc_ncr5380.sc_intr_off = NULL;
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#ifdef NCR5380_USE_BUS_SPACE
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sc->sc_ncr5380.sc_regt = pa->pa_mod_t;
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bus_space_map(sc->sc_ncr5380.sc_regt, pa->pa_mod_base, 8, 0,
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&sc->sc_ncr5380.sc_regh);
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sc->sc_ncr5380.sci_r0 = 0;
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sc->sc_ncr5380.sci_r1 = 1;
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sc->sc_ncr5380.sci_r2 = 2;
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sc->sc_ncr5380.sci_r3 = 3;
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sc->sc_ncr5380.sci_r4 = 4;
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sc->sc_ncr5380.sci_r5 = 5;
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sc->sc_ncr5380.sci_r6 = 6;
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sc->sc_ncr5380.sci_r7 = 7;
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#else
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iobase = (u_char *)pa->pa_mod_base;
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sc->sc_ncr5380.sci_r0 = iobase + 0;
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sc->sc_ncr5380.sci_r1 = iobase + 4;
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sc->sc_ncr5380.sci_r2 = iobase + 8;
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sc->sc_ncr5380.sci_r3 = iobase + 12;
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sc->sc_ncr5380.sci_r4 = iobase + 16;
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sc->sc_ncr5380.sci_r5 = iobase + 20;
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sc->sc_ncr5380.sci_r6 = iobase + 24;
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sc->sc_ncr5380.sci_r7 = iobase + 28;
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#endif
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sc->sc_ncr5380.sc_rev = NCR_VARIANT_NCR5380;
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sc->sc_ncr5380.sc_pio_in = ncr5380_pio_in;
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sc->sc_ncr5380.sc_pio_out = ncr5380_pio_out;
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/* Provide an override for the host id */
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sc->sc_ncr5380.sc_channel.chan_id = 7;
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sprintf(hi_option, "%s.hostid", sc->sc_ncr5380.sc_dev.dv_xname);
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(void)get_bootconf_option(boot_args, hi_option,
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BOOTOPT_TYPE_INT, &sc->sc_ncr5380.sc_channel.chan_id);
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sc->sc_ncr5380.sc_adapter.adapt_minphys = minphys;
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printf(": host=%d, using 8 bit PIO\n",
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sc->sc_ncr5380.sc_channel.chan_id);
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ncr5380_attach(&sc->sc_ncr5380);
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}
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