/* $NetBSD: gus_isapnp.c,v 1.41 2020/02/29 05:51:11 isaki Exp $ */

/* $NetBSD: gus_isapnp.c,v 1.41 2020/02/29 05:51:11 isaki Exp $ */

/*
* Copyright (c) 1997, 1999, 2008 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.
*
* 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: gus_isapnp.c,v 1.41 2020/02/29 05:51:11 isaki Exp $");

#include "guspnp.h"
#if NGUSPNP > 0

#include <sys/param.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 <sys/bus.h>
#include <sys/audioio.h>

#include <dev/audio/audio_if.h>

#include <dev/isa/isavar.h>
#include <dev/isa/isadmavar.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(device_t, cfdata_t, void *);
void gus_isapnp_attach(device_t, device_t, void *);
static int gus_isapnp_open(void *, int);

static const struct audio_hw_if guspnp_hw_if = {
.open = gus_isapnp_open,
.close = iwclose,
.query_format = iw_query_format,
.set_format = iw_audio_set_format,
.commit_settings = iw_commit_settings,
.init_output = iw_init_output,
.init_input = iw_init_input,
.start_output = iw_start_output,
.start_input = iw_start_input,
.halt_output = iw_halt_output,
.halt_input = iw_halt_input,
.speaker_ctl = iw_speaker_ctl,
.getdev = iw_getdev,
.set_port = iw_set_port,
.get_port = iw_get_port,
.query_devinfo = iw_query_devinfo,
.allocm = iw_malloc,
.freem = iw_free,
.round_buffersize = iw_round_buffersize,
.get_props = iw_get_props,
.get_locks = iw_get_locks,
};

CFATTACH_DECL_NEW(guspnp, sizeof(struct iw_softc),
gus_isapnp_match, gus_isapnp_attach, NULL, NULL);

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 = 1; /* XXX what's this */

int
gus_isapnp_match(device_t parent, cfdata_t 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.
*/
void
gus_isapnp_attach(device_t parent, device_t self, void *aux)
{
struct iw_softc *sc;
struct isapnp_attach_args *ipa;

sc = device_private(self);
ipa = aux;
aprint_naive("\n");
aprint_normal("\n");

if (!gus_0)
return;
gus_0 = 0;

if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) {
aprint_error_dev(self, "error in region allocation\n");
return;
}

sc->sc_dev = self;
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) {
sc->sc_play_maxsize = isa_dmamaxsize(sc->sc_ic,
sc->sc_playdrq);
if (isa_drq_alloc(sc->sc_ic, sc->sc_playdrq) != 0) {
aprint_error_dev(self, "can't reserve drq %d\n",
sc->sc_playdrq);
return;
}
if (isa_dmamap_create(sc->sc_ic, sc->sc_playdrq,
sc->sc_play_maxsize, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) {
aprint_error_dev(self, "can't create map for drq %d\n",
sc->sc_playdrq);
return;
}
}
if (sc->sc_recdrq != -1) {
sc->sc_rec_maxsize = isa_dmamaxsize(sc->sc_ic,
sc->sc_recdrq);
if (isa_drq_alloc(sc->sc_ic, sc->sc_recdrq) != 0) {
aprint_error_dev(self, "can't reserve drq %d\n",
sc->sc_recdrq);
return;
}
if (isa_dmamap_create(sc->sc_ic, sc->sc_recdrq,
sc->sc_rec_maxsize, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) {
aprint_error_dev(self, "can't create map for drq %d\n",
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;

aprint_normal_dev(self, "%s %s", ipa->ipa_devident, ipa->ipa_devclass);

iwattach(sc);
}

static int
gus_isapnp_open(void *addr, int flags)
{
/* open hardware */
struct iw_softc *sc;

sc = (struct iw_softc *)addr;
if (!sc)
return ENXIO;

return iwopen(sc,flags);
}

#endif /* NGUSPNP */