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freebsd-dev/usr.bin/doscmd/mouse.c
marcel 49a08e4a06 Unbreak doscmd after the sigset_t change: 
doscmd heavily depends on struct sigcontext which luckily is mostly passed
between functions as usion regcontext_t. By redefining union regcontext_t in
terms of mcontext_t almost all bases are covered.

It also seems to me that doscmd was in a transitional state. The redundant
definitions made it difficult to get a clear overview and could easily cause
oversight. To make sure my changes were ok, I went as far as to complete the
transition. It was not exactly necessary, but I expect to have to come back
here some more ("whistle" if I'm wrong :-).
1999-09-29 20:09:19 +00:00

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/*
* Copyright (c) 1992, 1993, 1996
* Berkeley Software Design, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Berkeley Software
* Design, Inc.
*
* THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Berkeley Software Design, Inc. BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* BSDI int33.c,v 2.2 1996/04/08 19:32:54 bostic Exp
*
* $FreeBSD$
*/
#include "doscmd.h"
#include "mouse.h"
mouse_t mouse_status;
u_char *mouse_area = 0;
int nmice = 0;
static void
mouse_probe(void)
{
}
void
int33(regcontext_t *REGS)
{
u_long vec;
u_short mask;
void *addr;
int i;
if (!nmice) {
R_FLAGS |= PSL_C; /* We don't support a mouse */
return;
}
printf("Mouse: %02x\n", R_AX);
switch (R_AX) {
case 0x00: /* Reset Mouse */
printf("Installing mouse driver\n");
R_AX = 0xffff; /* Mouse installed */
R_BX = 2; /* Number of mouse buttons */
memset(&mouse_status, 0, sizeof(mouse_status));
mouse_status.installed = 1;
mouse_status.hardcursor = 1;
mouse_status.end = 16;
mouse_status.hmickey = 8;
mouse_status.vmickey = 16;
mouse_status.doubling = 100;
mouse_status.init = -1;
mouse_status.range.w = 8 * 80;
mouse_status.range.h = 16 * 25;
break;
case 0x01: /* Display Mouse Cursor */
if ((mouse_status.init += 1) == 0) {
mouse_status.show = 1;
}
break;
case 0x02: /* Hide Mouse Cursor */
if (mouse_status.init == 0)
mouse_status.show = 0;
mouse_status.init -= 1;
break;
case 0x03: /* Get cursor position/button status */
mouse_probe();
R_CX = mouse_status.x;
R_DX = mouse_status.y;
R_BX = mouse_status.buttons;
break;
case 0x04: /* Move mouse cursor */
/* mouse_move(GET16(sc->sc_ecx), GET16(sc->sc_edx)); */
break;
case 0x05: /* Determine number of times mouse button was active */
i = R_BX & 3;
if (i == 3)
i = 1;
R_BX = mouse_status.downs[i];
mouse_status.downs[i] = 0;
R_AX = mouse_status.buttons;
R_CX = mouse_status.x; /* Not quite right */
R_DX = mouse_status.y; /* Not quite right */
break;
case 0x06: /* Determine number of times mouse button was relsd */
i = R_DX & 3;
if (i == 3)
i = 1;
R_BX = mouse_status.ups[i];
mouse_status.ups[i] = 0;
R_AX = mouse_status.buttons;
R_CX = mouse_status.x; /* Not quite right */
R_DX = mouse_status.y; /* Not quite right */
break;
case 0x07: /* Set min/max horizontal cursor position */
mouse_status.range.x = R_CX;
mouse_status.range.w = R_DX - R_CX;
break;
case 0x08: /* Set min/max vertical cursor position */
mouse_status.range.y = R_CX;
mouse_status.range.h = R_DX - R_CX;
case 0x09: /* Set graphics cursor block */
/* BX,CX is hot spot, ES:DX is data. */
break;
case 0x0a: /* Set Text Cursor */
mouse_status.hardcursor = R_BX ? 1 : 0;
mouse_status.start = R_CX;
mouse_status.end = R_CX; /* XXX is this right ? */
break;
case 0x0b: /* Read Mouse Motion Counters */
mouse_probe();
R_CX = mouse_status.x - mouse_status.lastx;
R_DX = mouse_status.y - mouse_status.lasty;
mouse_status.lastx - mouse_status.x;
mouse_status.lasty - mouse_status.y;
break;
case 0x0c: /* Set event handler */
mouse_status.mask = R_CX;
mouse_status.handler = MAKEVEC(R_ES, R_DX);
break;
case 0x0d: /* Enable light pen */
case 0x0e: /* Disable light pen */
break;
case 0x0f: /* Set cursor speed */
mouse_status.hmickey = R_CX;
mouse_status.vmickey = R_DX;
break;
case 0x10: /* Exclusive area */
mouse_status.exclude.x = R_CX;
mouse_status.exclude.y = R_DX;
mouse_status.exclude.w = R_SI - R_CX;
mouse_status.exclude.h = R_DI - R_DX;
break;
case 0x13: /* Set maximum for mouse speed doubling */
break;
case 0x14: /* Exchange event handlers */
mask = mouse_status.mask;
vec = mouse_status.handler;
mouse_status.mask = R_CX;
mouse_status.handler = MAKEVEC(R_ES, R_DX);
R_CX = mask;
PUTVEC(R_ES, R_DX, vec);
break;
case 0x15: /* Determine mouse status buffer size */
R_BX = sizeof(mouse_status);
break;
case 0x16: /* Store mouse buffer */
memcpy((char *)MAKEPTR(R_ES, R_DX), &mouse_status,
sizeof(mouse_status));
break;
case 0x17: /* Restore mouse buffer */
memcpy(&mouse_status, (char *)MAKEPTR(R_ES, R_DX),
sizeof(mouse_status));
break;
case 0x18: /* Install alternate handler */
mask = R_CX & 0xff;
if ((R_CX & 0xe0) == 0x00 ||
mask == mouse_status.altmask[0] ||
mask == mouse_status.altmask[1] ||
mask == mouse_status.altmask[2] ||
(mouse_status.altmask[i = 0] &&
mouse_status.altmask[i = 1] &&
mouse_status.altmask[i = 2])) {
R_AX = 0xffff;
break;
}
mouse_status.altmask[i] = R_CX;
mouse_status.althandler[i] = MAKEVEC(R_ES, R_DX);
break;
case 0x19: /* Determine address of alternate event handler */
mask = R_CX & 0xff;
if (mask == mouse_status.altmask[0])
vec = mouse_status.althandler[0];
else if (mask == mouse_status.altmask[1])
vec = mouse_status.althandler[1];
else if (mask == mouse_status.altmask[2])
vec = mouse_status.althandler[2];
else
R_CX = 0;
PUTVEC(R_ES, R_DX, vec);
break;
case 0x1a: /* set mouse sensitivity */
mouse_status.hmickey = R_BX;
mouse_status.vmickey = R_CX;
mouse_status.doubling = R_DX;
break;
case 0x1b: /* set mouse sensitivity */
R_BX = mouse_status.hmickey;
R_CX = mouse_status.vmickey;
R_DX = mouse_status.doubling;
break;
case 0x1c: /* set mouse hardware rate */
case 0x1d: /* set display page */
break;
case 0x1e: /* get display page */
R_BX = 0; /* Always on display page 0 */
break;
case 0x1f: /* Disable mouse driver */
if (mouse_status.installed) {
PUTVEC(R_ES, R_DX, mouse_status.handler);
mouse_status.installed = 0;
} else {
R_AX = 0xffff;
}
break;
case 0x20: /* Enable mouse driver */
mouse_status.installed = 1;
break;
case 0x21: /* Reset mouse driver */
if (mouse_status.installed) {
mouse_status.show = 0;
mouse_status.handler = 0;
mouse_status.mask = 0;
mouse_status.cursor = 0;
} else {
R_AX = 0xffff;
}
break;
case 0x22: /* Specified language for mouse messages */
break;
case 0x23: /* Get language number */
R_BX = 0; /* Always return english */
break;
case 0x24: /* Get mouse type */
R_CX = 0x0400; /* PS/2 style mouse */
R_BX = 0x0600 + 24; /* Version 6.24 */
break;
default:
R_FLAGS |= PSL_C;
break;
}
}
void
mouse_init(void)
{
u_long vec;
vec = insert_softint_trampoline();
ivec[0x33] = vec;
register_callback(vec, int33, "int 33");
mouse_area[1] = 24;
}
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