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/* $NetBSD: wdc_isapnp.c,v 1.13 1999/03/22 10:00:12 mycroft Exp $ */
/*-
* Copyright (c) 1998 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/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/isa/isavar.h>
#include <dev/isa/isadmavar.h>
#include <dev/ata/atavar.h>
#include <dev/ic/wdcreg.h>
#include <dev/ic/wdcvar.h>
struct wdc_isapnp_softc {
struct wdc_softc sc_wdcdev;
struct channel_softc *wdc_chanptr;
struct channel_softc wdc_channel;
isa_chipset_tag_t sc_ic;
void *sc_ih;
int sc_drq;
};
int wdc_isapnp_match __P((struct device *, void *, void *));
void wdc_isapnp_attach __P((struct device *, struct device *, void *));
struct cfattach wdc_isapnp_ca = {
sizeof(struct wdc_isapnp_softc), wdc_isapnp_match, wdc_isapnp_attach
};
#ifdef notyet
static void wdc_isapnp_dma_setup __P((struct wdc_isapnp_softc *));
static void wdc_isapnp_dma_start __P((void *, void *, size_t, int));
static void wdc_isapnp_dma_finish __P((void *));
#endif
int
wdc_isapnp_match(parent, match, aux)
struct device *parent;
void *match;
void *aux;
{
struct isa_attach_args *ipa = aux;
if (ipa->ipa_nio != 2 ||
ipa->ipa_nmem != 0 ||
ipa->ipa_nmem32 != 0 ||
ipa->ipa_nirq != 1 ||
ipa->ipa_ndrq > 1)
return 0;
return (1);
}
void
wdc_isapnp_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct wdc_isapnp_softc *sc = (void *)self;
struct isa_attach_args *ipa = aux;
sc->wdc_channel.cmd_iot = ipa->ia_iot;
sc->wdc_channel.ctl_iot = ipa->ia_iot;
/*
* An IDE controller can feed us the regions in any order. Pass
* them along with the 8-byte region in sc_ad.ioh, and the other
* (2 byte) region in auxioh.
*/
if (ipa->ipa_io[0].length == 8) {
sc->wdc_channel.cmd_ioh = ipa->ipa_io[0].h;
sc->wdc_channel.ctl_ioh = ipa->ipa_io[1].h;
} else {
sc->wdc_channel.cmd_ioh = ipa->ipa_io[1].h;
sc->wdc_channel.ctl_ioh = ipa->ipa_io[0].h;
}
sc->wdc_channel.data32iot = sc->wdc_channel.cmd_iot;
sc->wdc_channel.data32ioh = sc->wdc_channel.cmd_ioh;
sc->sc_ic = ipa->ia_ic;
sc->sc_ih = isa_intr_establish(ipa->ia_ic, ipa->ipa_irq[0].num,
ipa->ipa_irq[0].type, IPL_BIO, wdcintr, &sc->wdc_channel,
sc->sc_wdcdev.sc_dev.dv_xname);
#ifdef notyet
if (ipa->ipa_ndrq > 0) {
sc->sc_drq = ipa->ipa_drq[0].num;
sc->sc_ad.cap |= WDC_CAPABILITY_DMA;
sc->sc_ad.dma_start = &wdc_isapnp_dma_start;
sc->sc_ad.dma_finish = &wdc_isapnp_dma_finish;
wdc_isapnp_dma_setup(sc);
}
#endif
sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16 | WDC_CAPABILITY_DATA32;
sc->sc_wdcdev.PIO_cap = 0;
sc->wdc_chanptr = &sc->wdc_channel;
sc->sc_wdcdev.channels = &sc->wdc_chanptr;
sc->sc_wdcdev.nchannels = 1;
sc->wdc_channel.channel = 0;
sc->wdc_channel.wdc = &sc->sc_wdcdev;
sc->wdc_channel.ch_queue = malloc(sizeof(struct channel_queue),
M_DEVBUF, M_NOWAIT);
if (sc->wdc_channel.ch_queue == NULL) {
printf(": can't allocate memory for command queue\n");
return;
}
printf("\n");
wdcattach(&sc->wdc_channel);
wdc_final_attach(&sc->wdc_channel);
}
#ifdef notyet
static void
wdc_isapnp_dma_setup(sc)
struct wdc_isapnp_softc *sc;
{
if (isa_dmamap_create(sc->sc_ic, sc->sc_drq,
MAXPHYS, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) {
printf("%s: can't create map for drq %d\n",
sc->sc_wdcdev.sc_dev.dv_xname, sc->sc_drq);
sc->sc_wdcdev.cap &= ~WDC_CAPABILITY_DMA;
}
}
static void
wdc_isapnp_dma_start(scv, buf, size, read)
void *scv, *buf;
size_t size;
int read;
{
struct wdc_isapnp_softc *sc = scv;
isa_dmastart(sc->sc_ic, sc->sc_drq, buf, size, NULL,
(read ? DMAMODE_READ : DMAMODE_WRITE) | DMAMODE_DEMAND,
BUS_DMA_NOWAIT);
}
static void
wdc_isapnp_dma_finish(scv)
void *scv;
{
struct wdc_isapnp_softc *sc = scv;
isa_dmadone(sc->sc_ic, sc->sc_drq);
}
#endif
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