usr.bin/doscmd/mouse.c

   1 /*
   2  * Copyright (c) 1992, 1993, 1996
   3  *      Berkeley Software Design, Inc.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by Berkeley Software
  16  *      Design, Inc.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``AS IS'' AND
  19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED.  IN NO EVENT SHALL Berkeley Software Design, Inc. BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  *
  30  *      BSDI int33.c,v 2.2 1996/04/08 19:32:54 bostic Exp
  31  *
  32  * $FreeBSD: src/usr.bin/doscmd/mouse.c,v 1.3.2.1 2002/04/25 11:04:51 tg Exp $
  33  * $DragonFly: src/usr.bin/doscmd/mouse.c,v 1.2 2003/06/17 04:29:26 dillon Exp $
  34  */
  35
  36 #include "doscmd.h"
  37 #include "mouse.h"
  38
  39 mouse_t         mouse_status;
  40 u_char          *mouse_area = 0;
  41 int             nmice = 1;
  42
  43 static void
  44 mouse_probe(void)
  45 {
  46 }
  47
  48 void
  49 int33(regcontext_t *REGS)
  50 {
  51     u_long vec = 0;
  52     u_short mask;
  53     int i;
  54
  55     if (!nmice) {
  56         R_FLAGS |= PSL_C;       /* We don't support a mouse */
  57         return;
  58     }
  59
  60     printf("Mouse: %02x\n", R_AX);
  61     switch (R_AX) {
  62     case 0x00:                          /* Reset Mouse */
  63         printf("Installing mouse driver\n");
  64         R_AX = 0xffff;                  /* Mouse installed */
  65         R_BX = 2;                       /* Number of mouse buttons */
  66         memset(&mouse_status, 0, sizeof(mouse_status));
  67         mouse_status.installed = 1;
  68         mouse_status.hardcursor = 1;
  69         mouse_status.end = 16;
  70         mouse_status.hmickey = 8;
  71         mouse_status.vmickey = 16;
  72         mouse_status.doubling = 100;
  73         mouse_status.init = -1;
  74         mouse_status.range.w = 8 * 80;
  75         mouse_status.range.h = 16 * 25;
  76         break;
  77
  78     case 0x01:  /* Display Mouse Cursor */
  79         if ((mouse_status.init += 1) == 0) {
  80             mouse_status.show = 1;
  81         }
  82         break;
  83
  84     case 0x02:  /* Hide Mouse Cursor */
  85         if (mouse_status.init == 0)
  86             mouse_status.show = 0;
  87         mouse_status.init -= 1;
  88         break;
  89
  90     case 0x03:  /* Get cursor position/button status */
  91         mouse_probe();
  92         R_CX = mouse_status.x;
  93         R_DX = mouse_status.y;
  94         R_BX = mouse_status.buttons;
  95         break;
  96
  97     case 0x04:  /* Move mouse cursor */
  98         /* mouse_move(GET16(sc->sc_ecx), GET16(sc->sc_edx)); */
  99         break;
 100
 101     case 0x05:  /* Determine number of times mouse button was active */
 102         i = R_BX & 3;
 103         if (i == 3)
 104             i = 1;
 105
 106         R_BX = mouse_status.downs[i];
 107         mouse_status.downs[i] = 0;
 108         R_AX = mouse_status.buttons;
 109         R_CX = mouse_status.x;          /* Not quite right */
 110         R_DX = mouse_status.y;          /* Not quite right */
 111         break;
 112
 113     case 0x06:  /* Determine number of times mouse button was relsd */
 114         i = R_DX & 3;
 115         if (i == 3)
 116             i = 1;
 117
 118         R_BX = mouse_status.ups[i];
 119         mouse_status.ups[i] = 0;
 120         R_AX = mouse_status.buttons;
 121         R_CX = mouse_status.x;          /* Not quite right */
 122         R_DX = mouse_status.y;          /* Not quite right */
 123         break;
 124
 125     case 0x07:  /* Set min/max horizontal cursor position */
 126         mouse_status.range.x = R_CX;
 127         mouse_status.range.w = R_DX - R_CX;
 128         break;
 129
 130     case 0x08:  /* Set min/max vertical cursor position */
 131         mouse_status.range.y = R_CX;
 132         mouse_status.range.h = R_DX - R_CX;
 133
 134     case 0x09:  /* Set graphics cursor block */
 135         /* BX,CX is hot spot, ES:DX is data. */
 136         break;
 137
 138     case 0x0a:  /* Set Text Cursor */
 139         mouse_status.hardcursor = R_BX ? 1 : 0;
 140         mouse_status.start = R_CX;
 141         mouse_status.end = R_CX;        /* XXX is this right ? */
 142         break;
 143
 144     case 0x0b:  /* Read Mouse Motion Counters */
 145         mouse_probe();
 146         R_CX = mouse_status.x - mouse_status.lastx;
 147         R_DX = mouse_status.y - mouse_status.lasty;
 148         break;
 149
 150     case 0x0c:  /* Set event handler */
 151         mouse_status.mask = R_CX;
 152         mouse_status.handler = MAKEVEC(R_ES, R_DX);
 153         break;
 154
 155     case 0x0d:  /* Enable light pen */
 156     case 0x0e:  /* Disable light pen */
 157         break;
 158
 159     case 0x0f:  /* Set cursor speed */
 160         mouse_status.hmickey = R_CX;
 161         mouse_status.vmickey = R_DX;
 162         break;
 163
 164     case 0x10:  /* Exclusive area */
 165         mouse_status.exclude.x = R_CX;
 166         mouse_status.exclude.y = R_DX;
 167         mouse_status.exclude.w = R_SI - R_CX;
 168         mouse_status.exclude.h = R_DI - R_DX;
 169         break;
 170
 171     case 0x13:  /* Set maximum for mouse speed doubling */
 172         break;
 173     case 0x14:  /* Exchange event handlers */
 174         mask = mouse_status.mask;
 175         vec = mouse_status.handler;
 176
 177         mouse_status.mask = R_CX;
 178         mouse_status.handler = MAKEVEC(R_ES, R_DX);
 179         R_CX = mask;
 180         PUTVEC(R_ES, R_DX, vec);
 181         break;
 182
 183     case 0x15:  /* Determine mouse status buffer size */
 184         R_BX = sizeof(mouse_status);
 185         break;
 186
 187     case 0x16:  /* Store mouse buffer */
 188         memcpy((char *)MAKEPTR(R_ES, R_DX), &mouse_status,
 189                sizeof(mouse_status));
 190         break;
 191
 192     case 0x17:  /* Restore mouse buffer */
 193         memcpy(&mouse_status, (char *)MAKEPTR(R_ES, R_DX),
 194                sizeof(mouse_status));
 195         break;
 196
 197     case 0x18:  /* Install alternate handler */
 198         mask = R_CX & 0xff;
 199         if ((R_CX & 0xe0) == 0x00 ||
 200             mask == mouse_status.altmask[0] ||
 201             mask == mouse_status.altmask[1] ||
 202             mask == mouse_status.altmask[2] ||
 203             (mouse_status.altmask[i = 0] &&
 204              mouse_status.altmask[i = 1] &&
 205              mouse_status.altmask[i = 2])) {
 206             R_AX = 0xffff;
 207             break;
 208         }
 209         mouse_status.altmask[i] = R_CX;
 210         mouse_status.althandler[i] = MAKEVEC(R_ES, R_DX);
 211         break;
 212
 213     case 0x19:  /* Determine address of alternate event handler */
 214         mask = R_CX & 0xff;
 215         if (mask == mouse_status.altmask[0])
 216             vec = mouse_status.althandler[0];
 217         else if (mask == mouse_status.altmask[1])
 218             vec = mouse_status.althandler[1];
 219         else if (mask == mouse_status.altmask[2])
 220             vec = mouse_status.althandler[2];
 221         else
 222             R_CX = 0;
 223         PUTVEC(R_ES, R_DX, vec);
 224         break;
 225
 226     case 0x1a:  /* set mouse sensitivity */
 227         mouse_status.hmickey = R_BX;
 228         mouse_status.vmickey = R_CX;
 229         mouse_status.doubling = R_DX;
 230         break;
 231
 232     case 0x1b:  /* get mouse sensitivity */
 233         R_BX = mouse_status.hmickey;
 234         R_CX = mouse_status.vmickey;
 235         R_DX = mouse_status.doubling;
 236         break;
 237
 238     case 0x1c:  /* set mouse hardware rate */
 239     case 0x1d:  /* set display page */
 240         break;
 241
 242     case 0x1e:  /* get display page */
 243         R_BX = 0;       /* Always on display page 0 */
 244         break;
 245
 246     case 0x1f:  /* Disable mouse driver */
 247         if (mouse_status.installed) {
 248             PUTVEC(R_ES, R_DX, mouse_status.handler);
 249             mouse_status.installed = 0;
 250         } else {
 251             R_AX = 0xffff;
 252         }
 253         break;
 254
 255     case 0x20:  /* Enable mouse driver */
 256         mouse_status.installed = 1;
 257         break;
 258
 259     case 0x21:  /* Reset mouse driver */
 260         if (mouse_status.installed) {
 261             mouse_status.show = 0;
 262             mouse_status.handler = 0;
 263             mouse_status.mask = 0;
 264             mouse_status.cursor = 0;
 265         } else {
 266             R_AX = 0xffff;
 267         }
 268         break;
 269
 270     case 0x22:  /* Specified language for mouse messages */
 271         break;
 272
 273     case 0x23:  /* Get language number */
 274         R_BX = 0;       /* Always return english */
 275         break;
 276
 277     case 0x24:  /* Get mouse type */
 278         R_CX = 0x0400;          /* PS/2 style mouse */
 279         R_BX = 0x0600 + 24;     /* Version 6.24 */
 280         break;
 281
 282     default:
 283         R_FLAGS |= PSL_C;
 284         break;
 285     }
 286 }
 287
 288 void
 289 mouse_init(void)
 290 {
 291     u_long vec;
 292
 293     vec = insert_softint_trampoline();
 294     ivec[0x33] = vec;
 295     register_callback(vec, int33, "int 33");
 296
 297     mouse_area[1] = 24;
 298 }