sys/arch/news68k/dev/ms_kbc.c

   1 /*      $NetBSD: ms_kbc.c,v 1.11 2008/03/29 05:48:33 tsutsui Exp $      */
   2
   3 /*-
   4  * Copyright (c) 2001 Izumi Tsutsui.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 /*-
  28  * Copyright (c) 2000 Tsubai Masanari.  All rights reserved.
  29  *
  30  * Redistribution and use in source and binary forms, with or without
  31  * modification, are permitted provided that the following conditions
  32  * are met:
  33  * 1. Redistributions of source code must retain the above copyright
  34  *    notice, this list of conditions and the following disclaimer.
  35  * 2. Redistributions in binary form must reproduce the above copyright
  36  *    notice, this list of conditions and the following disclaimer in the
  37  *    documentation and/or other materials provided with the distribution.
  38  * 3. The name of the author may not be used to endorse or promote products
  39  *    derived from this software without specific prior written permission.
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  42  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  43  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  44  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  45  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  46  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  47  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  48  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  49  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  50  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  51  */
  52
  53 #include <sys/cdefs.h>
  54 __KERNEL_RCSID(0, "$NetBSD: ms_kbc.c,v 1.11 2008/03/29 05:48:33 tsutsui Exp $");
  55
  56 #include <sys/param.h>
  57 #include <sys/device.h>
  58 #include <sys/systm.h>
  59
  60 #include <dev/wscons/wsconsio.h>
  61 #include <dev/wscons/wsmousevar.h>
  62
  63 #include <machine/cpu.h>
  64 #include <machine/bus.h>
  65
  66 #include <news68k/dev/kbcreg.h>
  67 #include <news68k/dev/kbcvar.h>
  68 #include <news68k/dev/msvar.h>
  69
  70 #include <news68k/news68k/isr.h>
  71
  72 static int ms_kbc_match(device_t, cfdata_t, void *);
  73 static void ms_kbc_attach(device_t, device_t, void *);
  74 static void ms_kbc_init(struct ms_softc *);
  75 int ms_kbc_intr(void *);
  76
  77 static int ms_kbc_enable(void *);
  78 static void ms_kbc_disable(void *);
  79 static int ms_kbc_ioctl(void *, u_long, void *, int, struct lwp *);
  80
  81 CFATTACH_DECL_NEW(ms_kbc, sizeof(struct ms_softc),
  82     ms_kbc_match, ms_kbc_attach, NULL, NULL);
  83
  84 struct wsmouse_accessops ms_kbc_accessops = {
  85         ms_kbc_enable,
  86         ms_kbc_ioctl,
  87         ms_kbc_disable
  88 };
  89
  90 static int
  91 ms_kbc_match(device_t parent, cfdata_t cf, void *aux)
  92 {
  93         struct kbc_attach_args *ka = aux;
  94
  95         if (strcmp(ka->ka_name, "ms"))
  96                 return 0;
  97
  98         return 1;
  99 }
 100
 101 static void
 102 ms_kbc_attach(device_t parent, device_t self, void *aux)
 103 {
 104         struct ms_softc *sc = device_private(self);
 105         struct kbc_attach_args *ka = aux;
 106         struct wsmousedev_attach_args wsa;
 107         int ipl;
 108
 109         sc->sc_dev = self;
 110         aprint_normal("\n");
 111
 112         sc->sc_bt = ka->ka_bt;
 113         sc->sc_bh = ka->ka_bh;
 114         sc->sc_offset = KBC_MSREG_DATA;
 115         ipl = ka->ka_ipl;
 116
 117         ms_kbc_init(sc);
 118
 119         isrlink_autovec(ms_kbc_intr, (void *)sc, ipl, IPL_TTY);
 120
 121         wsa.accessops = &ms_kbc_accessops;
 122         wsa.accesscookie = sc;
 123         sc->sc_wsmousedev = config_found(self, &wsa, wsmousedevprint);
 124 }
 125
 126 static void
 127 ms_kbc_init(struct ms_softc *sc)
 128 {
 129         bus_space_tag_t bt = sc->sc_bt;
 130         bus_space_handle_t bh = sc->sc_bh;
 131
 132         bus_space_write_1(bt, bh, KBC_MSREG_RESET, 0);
 133         bus_space_write_1(bt, bh, KBC_MSREG_INTE, KBC_INTE);
 134 }
 135
 136 int
 137 ms_kbc_intr(void *v)
 138 {
 139         struct ms_softc *sc = v;
 140         bus_space_tag_t bt = sc->sc_bt;
 141         bus_space_handle_t bh = sc->sc_bh;
 142         int handled = 0;
 143
 144         while (bus_space_read_1(bt, bh, KBC_MSREG_STAT) & KBCSTAT_MSRDY) {
 145                 ms_intr(sc);
 146                 handled = 1;
 147         }
 148         if (handled)
 149                 bus_space_write_1(bt, bh, KBC_MSREG_INTE, KBC_INTE);
 150
 151         return handled;
 152 }
 153
 154 static int
 155 ms_kbc_enable(void *v)
 156 {
 157         struct ms_softc *sc = v;
 158         bus_space_tag_t bt = sc->sc_bt;
 159         bus_space_handle_t bh = sc->sc_bh;
 160
 161         bus_space_write_1(bt, bh, KBC_MSREG_INTE, KBC_INTE);
 162
 163         return 0;
 164 }
 165
 166 static void
 167 ms_kbc_disable(void *v)
 168 {
 169         struct ms_softc *sc = v;
 170         bus_space_tag_t bt = sc->sc_bt;
 171         bus_space_handle_t bh = sc->sc_bh;
 172
 173         bus_space_write_1(bt, bh, KBC_MSREG_INTE, 0);
 174 }
 175
 176 static int
 177 ms_kbc_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l)
 178 {
 179
 180         return EPASSTHROUGH;
 181 }