sys/dev/isa/ess_isa.c

   1 /*      $NetBSD: ess_isa.c,v 1.22 2009/05/05 12:07:15 cegger Exp $      */
   2
   3 /*-
   4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Nathan J. Williams.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 __KERNEL_RCSID(0, "$NetBSD: ess_isa.c,v 1.22 2009/05/05 12:07:15 cegger Exp $");
  34
  35 #include <sys/param.h>
  36 #include <sys/systm.h>
  37 #include <sys/device.h>
  38
  39 #include <sys/cpu.h>
  40 #include <sys/bus.h>
  41
  42 #include <dev/isa/isavar.h>
  43
  44 #include <dev/isa/essreg.h>
  45 #include <dev/isa/essvar.h>
  46
  47 #include "joy_ess.h"
  48
  49 #ifdef ESS_ISA_DEBUG
  50 #define DPRINTF(x)      printf x
  51 #else
  52 #define DPRINTF(x)      {}
  53 #endif
  54
  55 int ess_isa_probe(device_t, cfdata_t, void *);
  56 void ess_isa_attach(device_t, device_t, void *);
  57
  58 CFATTACH_DECL(ess_isa, sizeof(struct ess_softc),
  59     ess_isa_probe, ess_isa_attach, NULL, NULL);
  60
  61 int
  62 ess_isa_probe(device_t parent, cfdata_t match, void *aux)
  63 {
  64         int ret;
  65         struct isa_attach_args *ia;
  66         struct ess_softc probesc, *sc;
  67
  68         ia = aux;
  69         sc= &probesc;
  70         if (ia->ia_nio < 1)
  71                 return 0;
  72         if (ia->ia_nirq < 1)
  73                 return 0;
  74         if (ia->ia_ndrq < 1)
  75                 return 0;
  76
  77         if (ISA_DIRECT_CONFIG(ia))
  78                 return 0;
  79
  80         memset(sc, 0, sizeof *sc);
  81
  82         sc->sc_ic = ia->ia_ic;
  83         sc->sc_iot = ia->ia_iot;
  84         sc->sc_iobase = ia->ia_io[0].ir_addr;
  85         if (bus_space_map(sc->sc_iot, sc->sc_iobase, ESS_NPORT, 0,
  86             &sc->sc_ioh)) {
  87                 DPRINTF(("ess_isa_probe: Couldn't map I/O region at %x, "
  88                     "size %x\n", sc->sc_iobase, ESS_NPORT));
  89                 return 0;
  90         }
  91
  92         sc->sc_audio1.irq = ia->ia_irq[0].ir_irq;
  93         sc->sc_audio1.ist = IST_EDGE;
  94         sc->sc_audio1.drq = ia->ia_drq[0].ir_drq;
  95         sc->sc_audio2.irq = -1;
  96         sc->sc_audio2.drq = (ia->ia_ndrq > 1) ? ia->ia_drq[1].ir_drq : -1;
  97
  98         ret = essmatch(sc);
  99
 100         bus_space_unmap(sc->sc_iot, sc->sc_ioh, ESS_NPORT);
 101
 102         if (ret) {
 103                 DPRINTF(("ess_isa_probe succeeded (score %d)\n", ret));
 104                 ia->ia_nio = 1;
 105                 ia->ia_io[0].ir_size = ESS_NPORT;
 106
 107                 ia->ia_nirq = 1;
 108
 109                 if (ia->ia_ndrq > 1 &&
 110                     ia->ia_drq[1].ir_drq != ISA_UNKNOWN_DRQ)
 111                         ia->ia_ndrq = 2;
 112                 else
 113                         ia->ia_ndrq = 1;
 114
 115                 ia->ia_niomem = 0;
 116         } else
 117                 DPRINTF(("ess_isa_probe failed\n"));
 118
 119         return ret;
 120 }
 121
 122 void
 123 ess_isa_attach(device_t parent, device_t self, void *aux)
 124 {
 125         struct ess_softc *sc;
 126         struct isa_attach_args *ia;
 127         int enablejoy;
 128
 129         sc = device_private(self);
 130         ia = aux;
 131         enablejoy = 0;
 132
 133         aprint_naive("\n");
 134         aprint_normal("\n");
 135
 136         sc->sc_ic = ia->ia_ic;
 137         sc->sc_iot = ia->ia_iot;
 138         sc->sc_iobase = ia->ia_io[0].ir_addr;
 139         if (bus_space_map(sc->sc_iot, sc->sc_iobase, ESS_NPORT, 0,
 140             &sc->sc_ioh)) {
 141                 DPRINTF(("ess_isa_attach: Couldn't map I/O region at %x, "
 142                     "size %x\n", sc->sc_iobase, ESS_NPORT));
 143                 return;
 144         }
 145
 146         sc->sc_audio1.irq = ia->ia_irq[0].ir_irq;
 147         sc->sc_audio1.ist = IST_EDGE;
 148         sc->sc_audio1.drq = ia->ia_drq[0].ir_drq;
 149         sc->sc_audio2.irq = -1;
 150         sc->sc_audio2.drq = ia->ia_ndrq > 1 ? ia->ia_drq[1].ir_drq : -1;
 151
 152 #if NJOY_ESS > 0
 153         if (device_cfdata(self)->cf_flags & 1) {
 154                 sc->sc_joy_iot = ia->ia_iot;
 155                 if (!bus_space_map(sc->sc_joy_iot, 0x201, 1, 0,
 156                                    &sc->sc_joy_ioh))
 157                         enablejoy = 1;
 158         }
 159 #endif
 160
 161         aprint_normal_dev(self, "");
 162
 163         essattach(sc, enablejoy);
 164 }