/*      $NetBSD: wss_isapnp.c,v 1.31 2021/10/07 00:01:45 uwe Exp $      */

/*
* Copyright (c) 1997, 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson ([email protected]).
*
* 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: wss_isapnp.c,v 1.31 2021/10/07 00:01:45 uwe Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/errno.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/isa/ad1848var.h>
#include <dev/isa/madreg.h>
#include <dev/isa/wssreg.h>
#include <dev/isa/wssvar.h>
#include <dev/isa/sbreg.h>

int     wss_isapnp_match(device_t, cfdata_t, void *);
void    wss_isapnp_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(wss_isapnp, sizeof(struct wss_softc),
   wss_isapnp_match, wss_isapnp_attach, NULL, NULL);

/*
* Probe / attach routines.
*/

/*
* Probe for the WSS hardware.
*/
int
wss_isapnp_match(device_t parent, cfdata_t match, void *aux)
{
       int pri, variant;

       pri = isapnp_devmatch(aux, &isapnp_wss_devinfo, &variant);
       if (pri && variant > 1)
               pri = 0;
       return pri;
}

/*
* Attach hardware to driver, attach hardware driver to audio
* pseudo-device driver.
*/
void
wss_isapnp_attach(device_t parent, device_t self, void *aux)
{
       struct wss_softc *sc;
       struct ad1848_softc *ac;
       struct isapnp_attach_args *ipa;
       int variant;

       sc = device_private(self);
       ac = &sc->sc_ad1848.sc_ad1848;
       ac->sc_dev = self;
       ipa = aux;
       printf("\n");

       if (!isapnp_devmatch(aux, &isapnp_wss_devinfo, &variant)) {
               aprint_error_dev(self, "match failed?\n");
               return;
       }

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

       switch (variant) {
       case 1:
               /* We have to put the chip into `WSS mode'. */
               {
                       bus_space_tag_t iot;
                       bus_space_handle_t ioh;

                       iot = ipa->ipa_iot;
                       ioh = ipa->ipa_io[0].h;

                       while (bus_space_read_1(iot, ioh,
                           SBP_DSP_WSTAT) & SB_DSP_BUSY);
                       bus_space_write_1(iot, ioh, SBP_DSP_WRITE, 0x09);
                       while (bus_space_read_1(iot, ioh,
                           SBP_DSP_WSTAT) & SB_DSP_BUSY);
                       bus_space_write_1(iot, ioh, SBP_DSP_WRITE, 0x00);
                       while (bus_space_read_1(iot, ioh,
                           SBP_DSP_WSTAT) & SB_DSP_BUSY);

                       delay(1000);
               }

               sc->sc_iot = ipa->ipa_iot;
               sc->sc_ioh = ipa->ipa_io[2].h;
               break;

       default:
               sc->sc_iot = ipa->ipa_iot;
               sc->sc_ioh = ipa->ipa_io[0].h;
               break;
       }

       sc->mad_chip_type = MAD_NONE;

       /* Set up AD1848 I/O handle. */
       ac->sc_iot = sc->sc_iot;
       ac->sc_ioh = sc->sc_ioh;

       sc->sc_ad1848.sc_ic = ipa->ipa_ic;

       sc->wss_ic = ipa->ipa_ic;
       sc->wss_irq = ipa->ipa_irq[0].num;
       sc->wss_playdrq = ipa->ipa_drq[0].num;
       sc->wss_recdrq =
           ipa->ipa_ndrq > 1 ? ipa->ipa_drq[1].num : ipa->ipa_drq[0].num;

       if (!ad1848_isa_probe(&sc->sc_ad1848)) {
               aprint_error_dev(self, "ad1848_probe failed\n");
               return;
       }

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

       ac->mode = 2;

       wssattach(sc);

       /* set up OPL I/O handle for ISAPNP boards w/o MAD */
       if (ipa->ipa_nio > 1 && sc->mad_chip_type == MAD_NONE) {
               struct audio_attach_args arg;

               sc->sc_opl_ioh = ipa->ipa_io[1].h;

               arg.type = AUDIODEV_TYPE_OPL;
               arg.hwif = 0;
               arg.hdl = 0;
               config_found(self, &arg, audioprint, CFARGS(.iattr = "wss"));
       }
}

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