107 lines
3.7 KiB
C
107 lines
3.7 KiB
C
/* $NetBSD: hcide.c,v 1.1 2001/06/13 18:31:43 bjh21 Exp $ */
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/*-
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* Copyright (c) 2000, 2001 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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/*
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* hcide.c - Driver for the HCCS 16-bit IDE interface.
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*/
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#include <sys/param.h>
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__KERNEL_RCSID(0, "$NetBSD: hcide.c,v 1.1 2001/06/13 18:31:43 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 <dev/podulebus/podulebus.h>
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#include <dev/podulebus/podules.h>
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#include <dev/podulebus/hcidereg.h>
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#include <dev/ata/atavar.h>
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#include <dev/ic/wdcvar.h>
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struct hcide_softc {
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struct wdc_softc sc_wdc;
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struct channel_softc *sc_chp[HCIDE_NCHANNELS];/* pointers to sc_chan */
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struct channel_softc sc_chan[HCIDE_NCHANNELS];
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struct channel_queue sc_chq[HCIDE_NCHANNELS];
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};
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static void hcide_attach (struct device *, struct device *, void *);
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static int hcide_match (struct device *, struct cfdata *, void *);
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struct cfattach hcide_ca = {
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sizeof(struct hcide_softc), hcide_match, hcide_attach
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};
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static const int hcide_cmdoffsets[] = { HCIDE_CMD0, HCIDE_CMD1, HCIDE_CMD2 };
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static const int hcide_ctloffsets[] = { HCIDE_CTL, HCIDE_CTL, HCIDE_CTL };
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static int
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hcide_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 (pa->pa_product == PODULE_HCCS_IDESCSI &&
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strncmp(pa->pa_descr, "IDE", 3) == 0)
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return 1;
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return 0;
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}
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static void
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hcide_attach(struct device *parent, struct device *self, void *aux)
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{
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struct hcide_softc *sc = (void *)self;
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struct podulebus_attach_args *pa = aux;
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int i;
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sc->sc_wdc.cap = WDC_CAPABILITY_DATA16 | WDC_CAPABILITY_NOIRQ;
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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 = HCIDE_NCHANNELS;
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sc->sc_wdc.channels = sc->sc_chp;
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printf("\n");
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for (i = 0; i < HCIDE_NCHANNELS; i++) {
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sc->sc_chp[i] = &sc->sc_chan[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 = pa->pa_mod_t;
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sc->sc_chan[i].ctl_iot = pa->pa_mod_t;
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sc->sc_chan[i].ch_queue = &sc->sc_chq[i];
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bus_space_map(pa->pa_fast_t,
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pa->pa_fast_base + hcide_cmdoffsets[i], 0, 8,
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&sc->sc_chan[i].cmd_ioh);
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bus_space_map(pa->pa_fast_t,
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pa->pa_fast_base + hcide_ctloffsets[i], 0, 8,
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&sc->sc_chan[i].ctl_ioh);
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wdcattach(&sc->sc_chan[i]);
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}
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}
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