121 lines
4.2 KiB
C
121 lines
4.2 KiB
C
/* $NetBSD: dtide.c,v 1.3 2001/03/18 15:56:04 bjh21 Exp $ */
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/*-
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* Copyright (c) 2000 Ben Harris
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* All rights reserved.
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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. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* This file is part of NetBSD/arm26 -- a port of NetBSD to ARM2/3 machines. */
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/*
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* dtide.c - Driver for the D.T. Software IDE interface.
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*/
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#include <sys/param.h>
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__RCSID("$NetBSD: dtide.c,v 1.3 2001/03/18 15:56:04 bjh21 Exp $");
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#include <sys/device.h>
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#include <sys/systm.h>
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#include <machine/bus.h>
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#include <machine/irq.h>
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#include <arch/arm26/podulebus/podulebus.h>
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#include <dev/podulebus/podules.h>
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#include <arch/arm26/podulebus/dtidereg.h>
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#include <dev/ata/atavar.h>
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#include <dev/ic/wdcvar.h>
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struct dtide_softc {
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struct wdc_softc sc_wdc;
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struct channel_softc *sc_chp[2]; /* pointers to the following */
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struct channel_softc sc_chan[2];
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void *sc_ih[2];
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bus_space_tag_t sc_magict;
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bus_space_handle_t sc_magich;
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};
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static int dtide_match(struct device *, struct cfdata *, void *);
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static void dtide_attach(struct device *, struct device *, void *);
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struct cfattach dtide_ca = {
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sizeof(struct dtide_softc), dtide_match, dtide_attach
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};
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static int
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dtide_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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return IS_PODULE(pa, MANUFACTURER_DTSOFT, PODULE_DTSOFT_IDE);
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}
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static void
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dtide_attach(struct device *parent, struct device *self, void *aux)
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{
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struct podulebus_attach_args *pa = aux;
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struct dtide_softc *sc = (void *)self;
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int i;
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bus_space_tag_t bst;
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bus_space_handle_t bsh;
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sc->sc_wdc.cap = WDC_CAPABILITY_DATA16;
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sc->sc_wdc.PIO_cap = 0; /* XXX correct? */
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sc->sc_wdc.DMA_cap = 0; /* XXX correct? */
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sc->sc_wdc.UDMA_cap = 0;
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sc->sc_wdc.nchannels = 2;
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sc->sc_wdc.channels = sc->sc_chp;
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sc->sc_chp[0] = &sc->sc_chan[0];
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sc->sc_chp[1] = &sc->sc_chan[1];
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sc->sc_magict = pa->pa_fast_t;
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bus_space_subregion(pa->pa_fast_t, pa->pa_fast_h, DTIDE_MAGICBASE >> 2,
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1, &sc->sc_magich);
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bus_space_shift(pa->pa_fast_t, pa->pa_fast_h, DTIDE_REGSHIFT,
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&bst, &bsh);
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for (i = 0; i < 2; i++) {
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sc->sc_chan[i].channel = i;
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sc->sc_chan[i].wdc = &sc->sc_wdc;
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sc->sc_chan[i].cmd_iot = bst;
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sc->sc_chan[i].ctl_iot = bst;
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}
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bus_space_subregion(bst, bsh, DTIDE_CMDBASE0 >> 5, 0x100,
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&sc->sc_chan[0].cmd_ioh);
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bus_space_subregion(bst, bsh, DTIDE_CTLBASE0 >> 5, 0x100,
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&sc->sc_chan[0].ctl_ioh);
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bus_space_subregion(bst, bsh, DTIDE_CMDBASE1 >> 5, 0x100,
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&sc->sc_chan[1].cmd_ioh);
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bus_space_subregion(bst, bsh, DTIDE_CTLBASE1 >> 5, 0x100,
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&sc->sc_chan[1].ctl_ioh);
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sc->sc_ih[0] = podulebus_irq_establish(pa->pa_ih, IPL_BIO, wdcintr,
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&sc->sc_chan[0]);
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sc->sc_ih[1] = podulebus_irq_establish(pa->pa_ih, IPL_BIO, wdcintr,
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&sc->sc_chan[1]);
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printf(": interrupting at %s\n", irq_string(sc->sc_ih[0]));
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wdcattach(&sc->sc_chan[0]);
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irq_enable(sc->sc_ih[0]);
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wdcattach(&sc->sc_chan[1]);
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irq_enable(sc->sc_ih[1]);
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/* bus_space_write_1(sc->sc_magict, sc->sc_magich, 0, 1); */
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}
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