NetBSD/sys/dev/ic/wdc_upc.c

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2001-11-13 16:14:31 +03:00
/* $NetBSD: wdc_upc.c,v 1.3 2001/11/13 13:14:46 lukem Exp $ */
/*-
* Copyright (c) 2000 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.
*/
/* This file is part of NetBSD/arm26 -- a port of NetBSD to ARM2/3 machines. */
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#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: wdc_upc.c,v 1.3 2001/11/13 13:14:46 lukem Exp $");
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#include <sys/param.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/systm.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/ata/atavar.h> /* XXX needed by wdcvar.h */
#include <dev/ic/upcvar.h>
#include <dev/ic/wdcvar.h>
static int wdc_upc_match(struct device *, struct cfdata *, void *);
static void wdc_upc_attach(struct device *, struct device *, void *);
struct wdc_upc_softc {
struct wdc_softc sc_wdc;
struct channel_softc *sc_chanptr;
struct channel_softc sc_channel;
};
struct cfattach wdc_upc_ca = {
sizeof(struct wdc_upc_softc), wdc_upc_match, wdc_upc_attach
};
static int
wdc_upc_match(struct device *parent, struct cfdata *cf, void *aux)
{
/* upc_submatch does it all anyway */
return 1;
}
static void
wdc_upc_attach(struct device *parent, struct device *self, void *aux)
{
struct wdc_upc_softc *sc = (struct wdc_upc_softc *)self;
struct upc_attach_args *ua = aux;
sc->sc_wdc.cap = WDC_CAPABILITY_DATA16;
sc->sc_wdc.PIO_cap = 1; /* XXX ??? */
sc->sc_wdc.DMA_cap = 0;
sc->sc_wdc.UDMA_cap = 0;
sc->sc_wdc.nchannels = 1;
sc->sc_chanptr = &sc->sc_channel;
sc->sc_wdc.channels = &sc->sc_chanptr;
sc->sc_channel.cmd_iot = ua->ua_iot;
sc->sc_channel.cmd_ioh = ua->ua_ioh;
sc->sc_channel.ctl_iot = ua->ua_iot;
sc->sc_channel.ctl_ioh = ua->ua_ioh2;
sc->sc_channel.channel = 0;
sc->sc_channel.wdc = &sc->sc_wdc;
sc->sc_channel.ch_queue = malloc(sizeof(struct channel_queue),
M_DEVBUF, M_NOWAIT);
if (sc->sc_channel.ch_queue == NULL) {
printf("%s: can't allocate memory for command queue\n",
sc->sc_wdc.sc_dev.dv_xname);
return;
}
printf("\n");
wdcattach(&sc->sc_channel);
upc_intr_establish(ua->ua_irqhandle, IPL_BIO, wdcintr,
&sc->sc_channel);
}