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/* $NetBSD: wdc_obio.c,v 1.14 2004/01/06 18:46:08 he Exp $ */
/*-
* Copyright (c) 1998, 2003 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum and by Onno van der Linden.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: wdc_obio.c,v 1.14 2004/01/06 18:46:08 he Exp $");
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/ata/atavar.h>
#include <dev/ic/wdcvar.h>
#include <prep/dev/obiovar.h>
#define WDC_OBIO_REG_NPORTS 8
#define WDC_OBIO_AUXREG_OFFSET 0x206
#define WDC_OBIO_AUXREG_NPORTS 1 /* XXX "fdc" owns ports 0x3f7/0x377 */
/* options passed via the 'flags' config keyword */
#define WDC_OPTIONS_32 0x01 /* try to use 32bit data I/O */
struct wdc_obio_softc {
struct wdc_softc sc_wdcdev;
struct wdc_channel *wdc_chanlist[1];
struct wdc_channel wdc_channel;
struct ata_queue wdc_chqueue;
void *sc_ih;
};
static int wdc_obio_probe(struct device *, struct cfdata *, void *);
static void wdc_obio_attach(struct device *, struct device *, void *);
CFATTACH_DECL(wdc_obio, sizeof(struct wdc_obio_softc),
wdc_obio_probe, wdc_obio_attach, NULL, NULL);
static int
wdc_obio_probe(struct device *parent, struct cfdata *match, void *aux)
{
struct wdc_channel ch;
struct obio_attach_args *oa = aux;
int result = 0;
bzero(&ch, sizeof(ch));
ch.cmd_iot = oa->oa_iot;
if (bus_space_map(ch.cmd_iot, oa->oa_iobase, WDC_OBIO_REG_NPORTS, 0,
&ch.cmd_baseioh))
goto out;
ch.ctl_iot = oa->oa_iot;
if (bus_space_map(ch.ctl_iot, oa->oa_iobase + WDC_OBIO_AUXREG_OFFSET,
WDC_OBIO_AUXREG_NPORTS, 0, &ch.ctl_ioh))
goto outunmap;
result = wdcprobe(&ch);
if (result) {
oa->oa_iosize = WDC_OBIO_REG_NPORTS;
oa->oa_msize = 0;
}
bus_space_unmap(ch.ctl_iot, ch.ctl_ioh, WDC_OBIO_AUXREG_NPORTS);
outunmap:
bus_space_unmap(ch.cmd_iot, ch.cmd_baseioh, WDC_OBIO_REG_NPORTS);
out:
return (result);
}
static void
wdc_obio_attach(struct device *parent, struct device *self, void *aux)
{
struct wdc_obio_softc *sc = (void *)self;
struct obio_attach_args *oa = aux;
printf("\n");
sc->wdc_channel.cmd_iot = oa->oa_iot;
sc->wdc_channel.ctl_iot = oa->oa_iot;
if (bus_space_map(sc->wdc_channel.cmd_iot, oa->oa_iobase,
WDC_OBIO_REG_NPORTS, 0, &sc->wdc_channel.cmd_baseioh) ||
bus_space_map(sc->wdc_channel.ctl_iot,
oa->oa_iobase + WDC_OBIO_AUXREG_OFFSET, WDC_OBIO_AUXREG_NPORTS,
0, &sc->wdc_channel.ctl_ioh)) {
printf("%s: couldn't map registers\n",
sc->sc_wdcdev.sc_dev.dv_xname);
}
sc->wdc_channel.data32iot = sc->wdc_channel.cmd_iot;
sc->wdc_channel.data32ioh = sc->wdc_channel.cmd_iohs[0];
sc->sc_ih = obio_intr_establish(oa->oa_irq, IST_LEVEL,
IPL_BIO, wdcintr, &sc->wdc_channel);
sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16 | WDC_CAPABILITY_PREATA;
if (sc->sc_wdcdev.sc_dev.dv_cfdata->cf_flags & WDC_OPTIONS_32)
sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA32;
sc->sc_wdcdev.PIO_cap = 0;
sc->wdc_chanlist[0] = &sc->wdc_channel;
sc->sc_wdcdev.channels = sc->wdc_chanlist;
sc->sc_wdcdev.nchannels = 1;
sc->wdc_channel.ch_channel = 0;
sc->wdc_channel.ch_wdc = &sc->sc_wdcdev;
sc->wdc_channel.ch_queue = &sc->wdc_chqueue;
wdcattach(&sc->wdc_channel);
}
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