sys/arch/news68k/dev/ms.c

   1 /*      $NetBSD: ms.c,v 1.5 2006/11/12 19:00:43 plunky 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.c,v 1.5 2006/11/12 19:00:43 plunky 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/msvar.h>
  67
  68 void
  69 ms_intr(struct ms_softc *sc)
  70 {
  71         bus_space_tag_t bt = sc->sc_bt;
  72         bus_space_handle_t bh = sc->sc_bh;
  73         bus_size_t offset = sc->sc_offset;
  74         int code, index, byte0, byte1, byte2;
  75         int button, dx, dy;
  76
  77         if (sc->sc_wsmousedev == NULL)
  78                 return;
  79
  80         code = bus_space_read_1(bt, bh, offset);
  81         index = sc->sc_ndata;
  82
  83         if (code & MS_S_MARK) {
  84                 sc->sc_buf[MS_S_BYTE] = code;
  85                 sc->sc_ndata = MS_X_BYTE;
  86                 return;
  87         }
  88
  89         if (index == MS_X_BYTE) {
  90                 sc->sc_buf[MS_X_BYTE] = code;
  91                 sc->sc_ndata = MS_Y_BYTE;
  92                 return;
  93         }
  94
  95         if (index == MS_Y_BYTE) {
  96                 sc->sc_buf[MS_Y_BYTE] = code;
  97                 sc->sc_ndata = 0;
  98
  99                 byte0 = sc->sc_buf[MS_S_BYTE];
 100                 byte1 = sc->sc_buf[MS_X_BYTE];
 101                 byte2 = sc->sc_buf[MS_Y_BYTE];
 102
 103                 button = 0;
 104                 if (byte0 & MS_S_SW1)
 105                         button |= 0x01;
 106                 if (byte0 & MS_S_SW3)
 107                         button |= 0x02;
 108                 if (byte0 & MS_S_SW2)
 109                         button |= 0x04;
 110
 111                 dx = byte1 & MS_X_DATA;
 112                 if (byte0 & MS_S_XSIGN)
 113                         dx = -dx;
 114                 dy = byte2 & MS_Y_DATA;
 115                 if (byte0 & MS_S_YSIGN)
 116                         dy = -dy;
 117
 118                 wsmouse_input(sc->sc_wsmousedev,
 119                                 button,
 120                                 dx, -dy, 0, 0,
 121                                 WSMOUSE_INPUT_DELTA);
 122         }
 123 }