/*      $NetBSD: ess_isa.c,v 1.24 2010/05/22 16:35:00 tsutsui Exp $     */

/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Nathan J. Williams.
*
* 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: ess_isa.c,v 1.24 2010/05/22 16:35:00 tsutsui Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>

#include <sys/cpu.h>
#include <sys/bus.h>

#include <dev/isa/isavar.h>

#include <dev/isa/essreg.h>
#include <dev/isa/essvar.h>

#include "joy_ess.h"

#ifdef ESS_ISA_DEBUG
#define DPRINTF(x)      printf x
#else
#define DPRINTF(x)      {}
#endif

int ess_isa_probe(device_t, cfdata_t, void *);
void ess_isa_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(ess_isa, sizeof(struct ess_softc),
   ess_isa_probe, ess_isa_attach, NULL, NULL);

int
ess_isa_probe(device_t parent, cfdata_t match, void *aux)
{
       int ret;
       struct isa_attach_args *ia;
       struct ess_softc probesc, *sc;

       ia = aux;
       sc= &probesc;
       if (ia->ia_nio < 1)
               return 0;
       if (ia->ia_nirq < 1)
               return 0;
       if (ia->ia_ndrq < 1)
               return 0;

       if (ISA_DIRECT_CONFIG(ia))
               return 0;

       memset(sc, 0, sizeof *sc);

       sc->sc_ic = ia->ia_ic;
       sc->sc_iot = ia->ia_iot;
       sc->sc_iobase = ia->ia_io[0].ir_addr;
       if (bus_space_map(sc->sc_iot, sc->sc_iobase, ESS_NPORT, 0,
           &sc->sc_ioh)) {
               DPRINTF(("ess_isa_probe: Couldn't map I/O region at %x, "
                   "size %x\n", sc->sc_iobase, ESS_NPORT));
               return 0;
       }

       sc->sc_audio1.irq = ia->ia_irq[0].ir_irq;
       sc->sc_audio1.ist = IST_EDGE;
       sc->sc_audio1.drq = ia->ia_drq[0].ir_drq;
       sc->sc_audio2.irq = -1;
       sc->sc_audio2.drq = (ia->ia_ndrq > 1) ? ia->ia_drq[1].ir_drq : -1;

       ret = essmatch(sc);

       bus_space_unmap(sc->sc_iot, sc->sc_ioh, ESS_NPORT);

       if (ret) {
               DPRINTF(("ess_isa_probe succeeded (score %d)\n", ret));
               ia->ia_nio = 1;
               ia->ia_io[0].ir_size = ESS_NPORT;

               ia->ia_nirq = 1;

               if (ia->ia_ndrq > 1 &&
                   ia->ia_drq[1].ir_drq != ISA_UNKNOWN_DRQ)
                       ia->ia_ndrq = 2;
               else
                       ia->ia_ndrq = 1;

               ia->ia_niomem = 0;
       } else
               DPRINTF(("ess_isa_probe failed\n"));

       return ret;
}

void
ess_isa_attach(device_t parent, device_t self, void *aux)
{
       struct ess_softc *sc;
       struct isa_attach_args *ia;
       int enablejoy;

       sc = device_private(self);

       sc->sc_dev = self;
       ia = aux;
       enablejoy = 0;

       aprint_naive("\n");
       aprint_normal("\n");

       sc->sc_ic = ia->ia_ic;
       sc->sc_iot = ia->ia_iot;
       sc->sc_iobase = ia->ia_io[0].ir_addr;
       if (bus_space_map(sc->sc_iot, sc->sc_iobase, ESS_NPORT, 0,
           &sc->sc_ioh)) {
               DPRINTF(("ess_isa_attach: Couldn't map I/O region at %x, "
                   "size %x\n", sc->sc_iobase, ESS_NPORT));
               return;
       }

       sc->sc_audio1.irq = ia->ia_irq[0].ir_irq;
       sc->sc_audio1.ist = IST_EDGE;
       sc->sc_audio1.drq = ia->ia_drq[0].ir_drq;
       sc->sc_audio2.irq = -1;
       sc->sc_audio2.drq = ia->ia_ndrq > 1 ? ia->ia_drq[1].ir_drq : -1;

#if NJOY_ESS > 0
       if (device_cfdata(self)->cf_flags & 1) {
               sc->sc_joy_iot = ia->ia_iot;
               if (!bus_space_map(sc->sc_joy_iot, 0x201, 1, 0,
                                  &sc->sc_joy_ioh))
                       enablejoy = 1;
       }
#endif

       aprint_normal_dev(self, "");

       essattach(sc, enablejoy);
}