NetBSD/sys/dev/isapnp/gus_isapnp.c
mycroft 6ada3afd8b Reject variant numbers which are too large (so that a new version of isapnpdevs
with an old driver will not lose mysteriously).
1999-03-22 10:00:09 +00:00

244 lines
5.9 KiB
C

/* $NetBSD: gus_isapnp.c,v 1.13 1999/03/22 10:00:10 mycroft Exp $ */
/*
* Copyright (c) 1997, 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Author: Kari Mettinen
*
* 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 "guspnp.h"
#if NGUSPNP > 0
#include <sys/param.h>
#include <sys/fcntl.h>
#include <sys/vnode.h>
#include <sys/poll.h>
#include <sys/malloc.h>
#include <sys/select.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/syslog.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <machine/bus.h>
#include <sys/audioio.h>
#include <dev/audio_if.h>
#include <dev/audiovar.h>
#include <dev/mulaw.h>
#include <dev/isa/isavar.h>
#include <dev/isa/isadmavar.h>
#include <i386/isa/icu.h>
#include <dev/isapnp/isapnpreg.h>
#include <dev/isapnp/isapnpvar.h>
#include <dev/isapnp/isapnpdevs.h>
#include <dev/ic/interwavevar.h>
#include <dev/ic/interwavereg.h>
int gus_isapnp_match __P((struct device *, struct cfdata *, void *));
void gus_isapnp_attach __P((struct device *, struct device *, void *));
static int gus_isapnp_open __P((void *, int));
static struct audio_hw_if guspnp_hw_if = {
gus_isapnp_open,
iwclose,
NULL,
iw_query_encoding,
iw_set_params,
iw_round_blocksize,
iw_commit_settings,
iw_init_output,
iw_init_input,
iw_start_output,
iw_start_input,
iw_halt_output,
iw_halt_input,
iw_speaker_ctl,
iw_getdev,
iw_setfd,
iw_set_port,
iw_get_port,
iw_query_devinfo,
iw_malloc,
iw_free,
iw_round_buffersize,
iw_mappage,
iw_get_props,
};
struct cfattach guspnp_ca = {
sizeof(struct iw_softc), gus_isapnp_match, gus_isapnp_attach
};
extern struct cfdriver guspnp_cd;
/*
* Probe / attach routines.
*/
/*
* Probe for the guspnp hardware.
*
* The thing has 5 separate devices on the card
*/
static int gus_0 = 0; /* XXX what's this */
int
gus_isapnp_match(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
int pri, variant;
pri = isapnp_devmatch(aux, &isapnp_gus_devinfo, &variant);
if (pri && variant > 0)
pri = 0;
return (pri);
}
/*
* Attach hardware to driver, attach hardware driver to audio
* pseudo-device driver.
*/
static struct iw_softc *gussc;
void
gus_isapnp_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct iw_softc *sc = (struct iw_softc *)self;
struct isapnp_attach_args *ipa = aux;
printf("\n");
if (!gus_0)
return;
gus_0 = 0;
if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) {
printf("%s: error in region allocation\n",
sc->sc_dev.dv_xname);
return;
}
gussc = sc;
sc->sc_iot = ipa->ipa_iot;
/* handle is the region base */
sc->dir_h = 0; /* XXXXX */
sc->p2xr = 0;
sc->p2xr_h = ipa->ipa_io[0].h;
sc->sc_p2xr_ic = ipa->ipa_ic;
sc->p3xr = 0;
sc->p3xr_h = ipa->ipa_io[1].h;
sc->sc_p3xr_ic = ipa->ipa_ic;
sc->codec_index = 0;
sc->codec_index_h = ipa->ipa_io[2].h;
sc->sc_irq = ipa->ipa_irq[0].num;
sc->sc_recdrq = ipa->ipa_drq[0].num;
sc->sc_playdrq = ipa->ipa_drq[1].num;
sc->sc_ic = ipa->ipa_ic;
/*
* Create our DMA maps.
*/
if (sc->sc_playdrq != -1) {
if (isa_dmamap_create(sc->sc_ic, sc->sc_playdrq,
MAX_ISADMA, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) {
printf("%s: can't create map for drq %d\n",
sc->sc_dev.dv_xname, sc->sc_playdrq);
return;
}
}
if (sc->sc_recdrq != -1) {
if (isa_dmamap_create(sc->sc_ic, sc->sc_recdrq,
MAX_ISADMA, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) {
printf("%s: can't create map for drq %d\n",
sc->sc_dev.dv_xname, sc->sc_recdrq);
return;
}
}
/*
* isapnp is a child if isa, and we need isa for the dma
* routines.
*/
sc->iw_cd = &guspnp_cd;
sc->iw_hw_if = &guspnp_hw_if;
printf("%s: %s %s", sc->sc_dev.dv_xname, ipa->ipa_devident,
ipa->ipa_devclass);
iwattach(sc);
}
static
int
gus_isapnp_open(addr, flags)
void *addr;
int flags;
{
/* open hardware */
struct iw_softc *sc = (struct iw_softc *)addr;
if (!sc)
return ENXIO;
return iwopen(sc,flags);
}
#endif /* NGUSPNP */