/*      $NetBSD: sb_isapnp.c,v 1.54 2023/04/18 06:37:25 riastradh Exp $ */

/*
* Copyright (c) 1991-1993 Regents of the University of California.
* 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 the Computer Systems
*      Engineering Group at Lawrence Berkeley Laboratory.
* 4. Neither the name of the University nor of the Laboratory may be used
*    to endorse or promote products derived from this software without
*    specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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: sb_isapnp.c,v 1.54 2023/04/18 06:37:25 riastradh Exp $");

#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/midi_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/sbreg.h>
#include <dev/isa/sbvar.h>
#include <dev/isa/sbdspvar.h>

int     sb_isapnp_match(device_t, cfdata_t, void *);
void    sb_isapnp_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(sb_isapnp, sizeof(struct sbdsp_softc),
   sb_isapnp_match, sb_isapnp_attach, NULL, NULL);

/*
* Probe / attach routines.
*/

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

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

/*
* Attach hardware to driver, attach hardware driver to audio
* pseudo-device driver.
*/
void
sb_isapnp_attach(device_t parent, device_t self, void *aux)
{
       struct sbdsp_softc *sc;
       struct isapnp_attach_args *ipa;

       sc = device_private(self);
       sc->sc_dev = self;
       ipa = aux;
       aprint_normal("\n");

       /*
        * Avance logic ALS100+ does not like being frobbed
        * trying to set irq/drq so set that quirk skip over it
        */
       if(!strcmp(ipa->ipa_devlogic, "@@@1001"))
               sc->sc_quirks = SB_QUIRK_NO_INIT_DRQ;

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

       sc->sc_ic = ipa->ipa_ic;

       sc->sc_iot = ipa->ipa_iot;
       sc->sc_ioh = ipa->ipa_io[0].h;

       /* XXX These are only for setting chip configuration registers. */
       sc->sc_iobase = ipa->ipa_io[0].base;
       sc->sc_irq = ipa->ipa_irq[0].num;

       sc->sc_drq8 = ipa->ipa_drq[0].num;
       if (ipa->ipa_ndrq > 1 && ipa->ipa_drq[0].num != ipa->ipa_drq[1].num) {
               /* Some cards have the 16 bit drq first */
               if (sc->sc_drq8 >= 4) {
                       sc->sc_drq16 = sc->sc_drq8;
                       sc->sc_drq8 = ipa->ipa_drq[1].num;
               } else
                       sc->sc_drq16 = ipa->ipa_drq[1].num;
       } else
               sc->sc_drq16 = -1;

#if NMPU > 0
       /*
        * Aztech 1020 doesn't store information about its mpu in io[1].
        * It has a separate pnpdev for the mpu.
        * The same is true for an AD1816 AOpen soundcard (ID ADS7180)
        * so it will be treated the same here. But it was not before,
        * which leads to the question: could there be other cards that
        * identify as ADS7180 but map the mpu differently? That would be
        * inconvenient....
        */
       if (strcmp(ipa->ipa_devlogic, "AZT1016") == 0 ||
           strcmp(ipa->ipa_devlogic, "ADS7180") == 0)
               sc->sc_hasmpu = SBMPU_NONE;
       else if (ipa->ipa_nio > 1) {
               sc->sc_hasmpu = SBMPU_EXTERNAL;
               sc->sc_mpu_iot = ipa->ipa_iot;
               sc->sc_mpu_ioh = ipa->ipa_io[1].h;
       }
#endif

       if (!sbmatch(sc, 0, device_cfdata(self))) {
               aprint_error_dev(self, "sbmatch failed\n");
               return;
       }

       mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
       mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_AUDIO);

       sc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num,
           ipa->ipa_irq[0].type, IPL_AUDIO, sbdsp_intr, sc);

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

       sbattach(sc);
}