sys/arch/news68k/dev/ms_hb.c

   1 /*      $NetBSD: ms_hb.c,v 1.12 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_hb.c,v 1.12 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/bus.h>
  64 #include <machine/cpu.h>
  65
  66 #include <news68k/dev/hbvar.h>
  67 #include <news68k/dev/ms_hbreg.h>
  68 #include <news68k/dev/msvar.h>
  69
  70 #include <news68k/news68k/isr.h>
  71
  72 #define MS_SIZE 0x10 /* XXX */
  73 #define MS_IPL 5
  74
  75 static int ms_hb_match(device_t, cfdata_t, void *);
  76 static void ms_hb_attach(device_t, device_t, void *);
  77 static void ms_hb_init(struct ms_softc *);
  78 int ms_hb_intr(void *);
  79
  80 static int ms_hb_enable(void *);
  81 static int ms_hb_ioctl(void *, u_long, void *, int, struct lwp *);
  82 static void ms_hb_disable(void *);
  83
  84 CFATTACH_DECL_NEW(ms_hb, sizeof(struct ms_softc),
  85     ms_hb_match, ms_hb_attach, NULL, NULL);
  86
  87 struct wsmouse_accessops ms_hb_accessops = {
  88         ms_hb_enable,
  89         ms_hb_ioctl,
  90         ms_hb_disable
  91 };
  92
  93 static int
  94 ms_hb_match(device_t parent, cfdata_t cf, void *aux)
  95 {
  96         struct hb_attach_args *ha = aux;
  97         u_int addr;
  98
  99         if (strcmp(ha->ha_name, "ms"))
 100                 return 0;
 101
 102         /* XXX no default address */
 103         if (ha->ha_address == (u_int)-1)
 104                 return 0;
 105
 106         addr = IIOV(ha->ha_address); /* XXX */
 107
 108         if (badaddr((void *)addr, 1))
 109                 return 0;
 110
 111         return 1;
 112 }
 113
 114 static void
 115 ms_hb_attach(device_t parent, device_t self, void *aux)
 116 {
 117         struct ms_softc *sc = device_private(self);
 118         struct hb_attach_args *ha = aux;
 119         bus_space_tag_t bt = ha->ha_bust;
 120         bus_space_handle_t bh;
 121         struct wsmousedev_attach_args wsa;
 122         int ipl;
 123
 124         sc->sc_dev = self;
 125         if (bus_space_map(bt, ha->ha_address, MS_SIZE, 0, &bh) != 0) {
 126                 aprint_error(": can't map device space\n");
 127                 return;
 128         }
 129
 130         aprint_normal("\n");
 131
 132         sc->sc_bt = bt;
 133         sc->sc_bh = bh;
 134         sc->sc_offset = MS_REG_DATA;
 135         ipl = ha->ha_ipl;
 136         if (ipl == -1)
 137                 ipl = MS_IPL;
 138
 139         ms_hb_init(sc);
 140
 141         isrlink_autovec(ms_hb_intr, (void *)sc, ipl, IPL_TTY);
 142
 143         wsa.accessops = &ms_hb_accessops;
 144         wsa.accesscookie = sc;
 145         sc->sc_wsmousedev = config_found(self, &wsa, wsmousedevprint);
 146 }
 147
 148 static void
 149 ms_hb_init(struct ms_softc *sc)
 150 {
 151         bus_space_tag_t bt = sc->sc_bt;
 152         bus_space_handle_t bh = sc->sc_bh;
 153
 154         bus_space_write_1(bt, bh, MS_REG_RESET, 0);
 155         bus_space_write_1(bt, bh, MS_REG_INTE, MS_INTE);
 156 }
 157
 158 int
 159 ms_hb_intr(void *v)
 160 {
 161         struct ms_softc *sc = v;
 162         bus_space_tag_t bt = sc->sc_bt;
 163         bus_space_handle_t bh = sc->sc_bh;
 164         int handled = 0;
 165
 166         while ((bus_space_read_1(bt, bh, MS_REG_STAT) & MSSTAT_RDY) != 0) {
 167                 ms_intr(sc);
 168                 handled = 1;
 169         }
 170         if (handled)
 171                 bus_space_write_1(bt, bh, MS_REG_INTE, MS_INTE);
 172
 173         return handled;
 174 }
 175
 176 static int
 177 ms_hb_enable(void *v)
 178 {
 179         struct ms_softc *sc = v;
 180         bus_space_tag_t bt = sc->sc_bt;
 181         bus_space_handle_t bh = sc->sc_bh;
 182
 183         bus_space_write_1(bt, bh, MS_REG_INTE, MS_INTE);
 184
 185         return 0;
 186 }
 187
 188 static void
 189 ms_hb_disable(void *v)
 190 {
 191         struct ms_softc *sc = v;
 192         bus_space_tag_t bt = sc->sc_bt;
 193         bus_space_handle_t bh = sc->sc_bh;
 194
 195         bus_space_write_1(bt, bh, MS_REG_INTE, 0);
 196 }
 197
 198 static int
 199 ms_hb_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l)
 200 {
 201
 202         return EPASSTHROUGH;
 203 }