/*	$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 */