/*      $NetBSD: audioamd.c,v 1.30 2020/09/12 05:19:16 isaki Exp $      */
/*      NetBSD: am7930_sparc.c,v 1.44 1999/03/14 22:29:00 jonathan Exp  */

/*
* Copyright (c) 1995 Rolf Grossmann
* 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. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by Rolf Grossmann.
* 4. 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.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: audioamd.c,v 1.30 2020/09/12 05:19:16 isaki Exp $");

#include "audio.h"
#if NAUDIO > 0

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <sys/bus.h>
#include <sys/intr.h>
#include <sys/mutex.h>

#include <machine/autoconf.h>

#include <sys/audioio.h>
#include <dev/audio/audio_if.h>

#include <dev/ic/am7930reg.h>
#include <dev/ic/am7930var.h>

#define AUDIO_ROM_NAME "audio"

struct audioamd_softc {
       struct am7930_softc sc_am7930;  /* glue to MI code */

       bus_space_tag_t sc_bt;          /* bus cookie */
       bus_space_handle_t sc_bh;       /* device registers */
};

int     audioamd_mainbus_match(device_t, cfdata_t, void *);
void    audioamd_mainbus_attach(device_t, device_t, void *);
int     audioamd_obio_match(device_t, cfdata_t, void *);
void    audioamd_obio_attach(device_t, device_t, void *);
int     audioamd_sbus_match(device_t, cfdata_t, void *);
void    audioamd_sbus_attach(device_t, device_t, void *);
void    audioamd_attach(struct audioamd_softc *, int);

CFATTACH_DECL_NEW(audioamd_mainbus, sizeof(struct audioamd_softc),
   audioamd_mainbus_match, audioamd_mainbus_attach, NULL, NULL);

CFATTACH_DECL_NEW(audioamd_obio, sizeof(struct audioamd_softc),
   audioamd_obio_match, audioamd_obio_attach, NULL, NULL);

CFATTACH_DECL_NEW(audioamd_sbus, sizeof(struct audioamd_softc),
   audioamd_sbus_match, audioamd_sbus_attach, NULL, NULL);

/*
* Define our interface into the am7930 MI driver.
*/

uint8_t audioamd_codec_dread(struct am7930_softc *, int);
void    audioamd_codec_dwrite(struct am7930_softc *, int, uint8_t);

struct am7930_glue audioamd_glue = {
       audioamd_codec_dread,
       audioamd_codec_dwrite,
};

/*
* Define our interface to the higher level audio driver.
*/
int     audioamd_getdev(void *, struct audio_device *);

const struct audio_hw_if sa_hw_if = {
       .query_format           = am7930_query_format,
       .set_format             = am7930_set_format,
       .commit_settings        = am7930_commit_settings,
       .trigger_output         = am7930_trigger_output,
       .trigger_input          = am7930_trigger_input,
       .halt_output            = am7930_halt_output,
       .halt_input             = am7930_halt_input,
       .getdev                 = audioamd_getdev,
       .set_port               = am7930_set_port,
       .get_port               = am7930_get_port,
       .query_devinfo          = am7930_query_devinfo,
       .get_props              = am7930_get_props,
       .get_locks              = am7930_get_locks,
};

struct audio_device audioamd_device = {
       "am7930",
       "x",
       "audioamd"
};


int
audioamd_mainbus_match(device_t parent, cfdata_t cf, void *aux)
{
       struct mainbus_attach_args *ma;

       ma = aux;
       if (CPU_ISSUN4)
               return 0;
       return strcmp(AUDIO_ROM_NAME, ma->ma_name) == 0;
}

int
audioamd_obio_match(device_t parent, cfdata_t cf, void *aux)
{
       union obio_attach_args *uoba;

       uoba = aux;
       if (uoba->uoba_isobio4 != 0)
               return 0;

       return strcmp("audio", uoba->uoba_sbus.sa_name) == 0;
}

int
audioamd_sbus_match(device_t parent, cfdata_t cf, void *aux)
{
       struct sbus_attach_args *sa;

       sa = aux;
       return strcmp(AUDIO_ROM_NAME, sa->sa_name) == 0;
}

void
audioamd_mainbus_attach(device_t parent, device_t self, void *aux)
{
       struct mainbus_attach_args *ma;
       struct audioamd_softc *sc;
       bus_space_handle_t bh;

       ma = aux;
       sc = device_private(self);
       sc->sc_am7930.sc_dev = self;
       sc->sc_bt = ma->ma_bustag;

       if (bus_space_map(
                       ma->ma_bustag,
                       ma->ma_paddr,
                       AM7930_DREG_SIZE,
                       BUS_SPACE_MAP_LINEAR,
                       &bh) != 0) {
               printf("%s: cannot map registers\n", device_xname(self));
               return;
       }
       sc->sc_bh = bh;
       audioamd_attach(sc, ma->ma_pri);
}

void
audioamd_obio_attach(device_t parent, device_t self, void *aux)
{
       union obio_attach_args *uoba;
       struct sbus_attach_args *sa;
       struct audioamd_softc *sc;
       bus_space_handle_t bh;

       uoba = aux;
       sa = &uoba->uoba_sbus;
       sc = device_private(self);
       sc->sc_am7930.sc_dev = self;
       sc->sc_bt = sa->sa_bustag;

       if (sbus_bus_map(sa->sa_bustag,
                        sa->sa_slot, sa->sa_offset,
                        AM7930_DREG_SIZE,
                        0, &bh) != 0) {
               printf("%s: cannot map registers\n", device_xname(self));
               return;
       }
       sc->sc_bh = bh;
       audioamd_attach(sc, sa->sa_pri);
}

void
audioamd_sbus_attach(device_t parent, device_t self, void *aux)
{
       struct sbus_attach_args *sa;
       struct audioamd_softc *sc;
       bus_space_handle_t bh;

       sa = aux;
       sc = device_private(self);
       sc->sc_am7930.sc_dev = self;
       sc->sc_bt = sa->sa_bustag;

       if (sbus_bus_map(sa->sa_bustag,
                        sa->sa_slot, sa->sa_offset,
                        AM7930_DREG_SIZE,
                        0, &bh) != 0) {
               printf("%s: cannot map registers\n", device_xname(self));
               return;
       }
       sc->sc_bh = bh;
       audioamd_attach(sc, sa->sa_pri);
}

void
audioamd_attach(struct audioamd_softc *sc, int pri)
{
       struct am7930_softc *amsc = &sc->sc_am7930;
       device_t self;

       /*
        * Set up glue for MI code early; we use some of it here.
        */
       amsc->sc_glue = &audioamd_glue;
       am7930_init(amsc, AUDIOAMD_POLL_MODE);

       (void)bus_intr_establish2(sc->sc_bt, pri, IPL_HIGH,
                                 am7930_hwintr, sc, NULL);

       printf("\n");

       self = amsc->sc_dev;
       evcnt_attach_dynamic(&amsc->sc_intrcnt, EVCNT_TYPE_INTR, NULL,
           device_xname(self), "intr");

       audio_attach_mi(&sa_hw_if, sc, self);
}


/* direct read */
uint8_t
audioamd_codec_dread(struct am7930_softc *amsc, int reg)
{
       struct audioamd_softc *sc = (struct audioamd_softc *)amsc;

       return bus_space_read_1(sc->sc_bt, sc->sc_bh, reg);
}

/* direct write */
void
audioamd_codec_dwrite(struct am7930_softc *amsc, int reg, uint8_t val)
{
       struct audioamd_softc *sc = (struct audioamd_softc *)amsc;

       bus_space_write_1(sc->sc_bt, sc->sc_bh, reg, val);
}

int
audioamd_getdev(void *addr, struct audio_device *retp)
{

       *retp = audioamd_device;
       return 0;
}

#endif /* NAUDIO > 0 */

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