NetBSD/sys/dev/podulebus/hcide.c

108 lines
3.7 KiB
C

/* $NetBSD: hcide.c,v 1.2 2001/11/13 07:23:15 lukem Exp $ */
/*-
* Copyright (c) 2000, 2001 Ben Harris
* 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. 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.
*/
/*
* hcide.c - Driver for the HCCS 16-bit IDE interface.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: hcide.c,v 1.2 2001/11/13 07:23:15 lukem Exp $");
#include <sys/param.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <machine/bus.h>
#include <dev/podulebus/podulebus.h>
#include <dev/podulebus/podules.h>
#include <dev/podulebus/hcidereg.h>
#include <dev/ata/atavar.h>
#include <dev/ic/wdcvar.h>
struct hcide_softc {
struct wdc_softc sc_wdc;
struct channel_softc *sc_chp[HCIDE_NCHANNELS];/* pointers to sc_chan */
struct channel_softc sc_chan[HCIDE_NCHANNELS];
struct channel_queue sc_chq[HCIDE_NCHANNELS];
};
static void hcide_attach (struct device *, struct device *, void *);
static int hcide_match (struct device *, struct cfdata *, void *);
struct cfattach hcide_ca = {
sizeof(struct hcide_softc), hcide_match, hcide_attach
};
static const int hcide_cmdoffsets[] = { HCIDE_CMD0, HCIDE_CMD1, HCIDE_CMD2 };
static const int hcide_ctloffsets[] = { HCIDE_CTL, HCIDE_CTL, HCIDE_CTL };
static int
hcide_match(struct device *parent, struct cfdata *cf, void *aux)
{
struct podulebus_attach_args *pa = aux;
if (pa->pa_product == PODULE_HCCS_IDESCSI &&
strncmp(pa->pa_descr, "IDE", 3) == 0)
return 1;
return 0;
}
static void
hcide_attach(struct device *parent, struct device *self, void *aux)
{
struct hcide_softc *sc = (void *)self;
struct podulebus_attach_args *pa = aux;
int i;
sc->sc_wdc.cap = WDC_CAPABILITY_DATA16 | WDC_CAPABILITY_NOIRQ;
sc->sc_wdc.PIO_cap = 0; /* XXX correct? */
sc->sc_wdc.DMA_cap = 0; /* XXX correct? */
sc->sc_wdc.UDMA_cap = 0;
sc->sc_wdc.nchannels = HCIDE_NCHANNELS;
sc->sc_wdc.channels = sc->sc_chp;
printf("\n");
for (i = 0; i < HCIDE_NCHANNELS; i++) {
sc->sc_chp[i] = &sc->sc_chan[i];
sc->sc_chan[i].channel = i;
sc->sc_chan[i].wdc = &sc->sc_wdc;
sc->sc_chan[i].cmd_iot = pa->pa_mod_t;
sc->sc_chan[i].ctl_iot = pa->pa_mod_t;
sc->sc_chan[i].ch_queue = &sc->sc_chq[i];
bus_space_map(pa->pa_fast_t,
pa->pa_fast_base + hcide_cmdoffsets[i], 0, 8,
&sc->sc_chan[i].cmd_ioh);
bus_space_map(pa->pa_fast_t,
pa->pa_fast_base + hcide_ctloffsets[i], 0, 8,
&sc->sc_chan[i].ctl_ioh);
wdcattach(&sc->sc_chan[i]);
}
}