sys/arch/amiga/dev/drsupio.c

   1 /*      $NetBSD: drsupio.c,v 1.17 2005/12/11 12:16:28 christos Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1997 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Ignatios Souvatzis.
   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: drsupio.c,v 1.17 2005/12/11 12:16:28 christos Exp $");
  34
  35 /*
  36  * DraCo multi-io chip bus space stuff
  37  */
  38
  39 #include <sys/types.h>
  40
  41 #include <sys/conf.h>
  42 #include <sys/device.h>
  43 #include <sys/systm.h>
  44 #include <sys/param.h>
  45
  46 #include <uvm/uvm_extern.h>
  47
  48 #include <machine/bus.h>
  49
  50 #include <amiga/include/cpu.h>
  51
  52 #include <amiga/amiga/device.h>
  53 #include <amiga/amiga/drcustom.h>
  54
  55 #include <amiga/dev/supio.h>
  56
  57 struct drsupio_softc {
  58         struct device sc_dev;
  59         struct bus_space_tag sc_bst;
  60 };
  61
  62 int drsupiomatch(struct device *, struct cfdata *, void *);
  63 void drsupioattach(struct device *, struct device *, void *);
  64 int drsupprint(void *auxp, const char *);
  65 void drlptintack(void *);
  66
  67 CFATTACH_DECL(drsupio, sizeof(struct drsupio_softc),
  68     drsupiomatch, drsupioattach, NULL, NULL);
  69
  70 int
  71 drsupiomatch(struct device *parent, struct cfdata *cfp, void *auxp)
  72 {
  73         static int drsupio_matched = 0;
  74
  75         /* Exactly one of us lives on the DraCo */
  76         if (!is_draco() || !matchname(auxp, "drsupio") || drsupio_matched)
  77                 return 0;
  78
  79         drsupio_matched = 1;
  80         return 1;
  81 }
  82
  83 struct drsupio_devs {
  84         const char *name;
  85         int off;
  86         int arg;
  87 } drsupiodevs[] = {
  88         { "com", 0x3f8, 115200 * 16 },
  89         { "com", 0x2f8, 115200 * 16 },
  90         { "lpt", 0x278, (int)drlptintack },
  91         { "fdc", 0x3f0, 0 },
  92         /* WD port? */
  93         { 0 }
  94 };
  95
  96 void
  97 drsupioattach(struct device *parent, struct device *self, void *auxp)
  98 {
  99         struct drsupio_softc *drsc;
 100         struct drsupio_devs  *drsd;
 101         struct drioct *ioct;
 102         struct supio_attach_args supa;
 103
 104         drsc = (struct drsupio_softc *)self;
 105         drsd = drsupiodevs;
 106
 107         if (parent)
 108                 printf("\n");
 109
 110         drsc->sc_bst.base = DRCCADDR + PAGE_SIZE * DRSUPIOPG + 1;
 111         drsc->sc_bst.absm = &amiga_bus_stride_4;
 112
 113         supa.supio_iot = &drsc->sc_bst;
 114         supa.supio_ipl = 5;
 115
 116         while (drsd->name) {
 117                 supa.supio_name = drsd->name;
 118                 supa.supio_iobase = drsd->off;
 119                 supa.supio_arg = drsd->arg;
 120                 config_found(self, &supa, drsupprint); /* XXX */
 121                 ++drsd;
 122         }
 123
 124         drlptintack(0);
 125         ioct = (struct drioct *)(DRCCADDR + PAGE_SIZE * DRIOCTLPG);
 126         ioct->io_status2 |= DRSTAT2_PARIRQENA;
 127 }
 128
 129 void
 130 drlptintack(void *p)
 131 {
 132         struct drioct *ioct;
 133
 134         (void)p;
 135         ioct = (struct drioct *)(DRCCADDR + PAGE_SIZE * DRIOCTLPG);
 136
 137         ioct->io_parrst = 0;    /* any value works */
 138 }
 139
 140 int
 141 drsupprint(void *auxp, const char *pnp)
 142 {
 143         struct supio_attach_args *supa;
 144         supa = auxp;
 145
 146         if (pnp == NULL)
 147                 return(QUIET);
 148
 149         aprint_normal("%s at %s port 0x%02x",
 150             supa->supio_name, pnp, supa->supio_iobase);
 151
 152         return(UNCONF);
 153 }