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535b692091
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 :-).
300 lines
7.7 KiB
C
300 lines
7.7 KiB
C
/*
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* Copyright (c) 1992, 1993, 1996
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* Berkeley Software Design, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Berkeley Software
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* Design, Inc.
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*
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* THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL Berkeley Software Design, Inc. BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* BSDI int33.c,v 2.2 1996/04/08 19:32:54 bostic Exp
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*
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* $FreeBSD$
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*/
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#include "doscmd.h"
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#include "mouse.h"
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mouse_t mouse_status;
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u_char *mouse_area = 0;
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int nmice = 0;
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static void
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mouse_probe(void)
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{
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}
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void
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int33(regcontext_t *REGS)
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{
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u_long vec;
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u_short mask;
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void *addr;
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int i;
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if (!nmice) {
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R_FLAGS |= PSL_C; /* We don't support a mouse */
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return;
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}
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printf("Mouse: %02x\n", R_AX);
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switch (R_AX) {
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case 0x00: /* Reset Mouse */
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printf("Installing mouse driver\n");
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R_AX = 0xffff; /* Mouse installed */
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R_BX = 2; /* Number of mouse buttons */
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memset(&mouse_status, 0, sizeof(mouse_status));
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mouse_status.installed = 1;
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mouse_status.hardcursor = 1;
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mouse_status.end = 16;
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mouse_status.hmickey = 8;
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mouse_status.vmickey = 16;
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mouse_status.doubling = 100;
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mouse_status.init = -1;
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mouse_status.range.w = 8 * 80;
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mouse_status.range.h = 16 * 25;
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break;
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case 0x01: /* Display Mouse Cursor */
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if ((mouse_status.init += 1) == 0) {
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mouse_status.show = 1;
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}
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break;
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case 0x02: /* Hide Mouse Cursor */
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if (mouse_status.init == 0)
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mouse_status.show = 0;
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mouse_status.init -= 1;
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break;
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case 0x03: /* Get cursor position/button status */
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mouse_probe();
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R_CX = mouse_status.x;
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R_DX = mouse_status.y;
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R_BX = mouse_status.buttons;
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break;
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case 0x04: /* Move mouse cursor */
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/* mouse_move(GET16(sc->sc_ecx), GET16(sc->sc_edx)); */
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break;
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case 0x05: /* Determine number of times mouse button was active */
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i = R_BX & 3;
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if (i == 3)
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i = 1;
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R_BX = mouse_status.downs[i];
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mouse_status.downs[i] = 0;
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R_AX = mouse_status.buttons;
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R_CX = mouse_status.x; /* Not quite right */
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R_DX = mouse_status.y; /* Not quite right */
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break;
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case 0x06: /* Determine number of times mouse button was relsd */
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i = R_DX & 3;
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if (i == 3)
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i = 1;
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R_BX = mouse_status.ups[i];
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mouse_status.ups[i] = 0;
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R_AX = mouse_status.buttons;
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R_CX = mouse_status.x; /* Not quite right */
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R_DX = mouse_status.y; /* Not quite right */
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break;
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case 0x07: /* Set min/max horizontal cursor position */
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mouse_status.range.x = R_CX;
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mouse_status.range.w = R_DX - R_CX;
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break;
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case 0x08: /* Set min/max vertical cursor position */
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mouse_status.range.y = R_CX;
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mouse_status.range.h = R_DX - R_CX;
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case 0x09: /* Set graphics cursor block */
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/* BX,CX is hot spot, ES:DX is data. */
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break;
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case 0x0a: /* Set Text Cursor */
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mouse_status.hardcursor = R_BX ? 1 : 0;
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mouse_status.start = R_CX;
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mouse_status.end = R_CX; /* XXX is this right ? */
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break;
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case 0x0b: /* Read Mouse Motion Counters */
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mouse_probe();
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R_CX = mouse_status.x - mouse_status.lastx;
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R_DX = mouse_status.y - mouse_status.lasty;
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mouse_status.lastx - mouse_status.x;
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mouse_status.lasty - mouse_status.y;
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break;
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case 0x0c: /* Set event handler */
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mouse_status.mask = R_CX;
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mouse_status.handler = MAKEVEC(R_ES, R_DX);
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break;
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case 0x0d: /* Enable light pen */
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case 0x0e: /* Disable light pen */
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break;
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case 0x0f: /* Set cursor speed */
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mouse_status.hmickey = R_CX;
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mouse_status.vmickey = R_DX;
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break;
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case 0x10: /* Exclusive area */
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mouse_status.exclude.x = R_CX;
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mouse_status.exclude.y = R_DX;
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mouse_status.exclude.w = R_SI - R_CX;
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mouse_status.exclude.h = R_DI - R_DX;
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break;
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case 0x13: /* Set maximum for mouse speed doubling */
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break;
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case 0x14: /* Exchange event handlers */
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mask = mouse_status.mask;
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vec = mouse_status.handler;
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mouse_status.mask = R_CX;
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mouse_status.handler = MAKEVEC(R_ES, R_DX);
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R_CX = mask;
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PUTVEC(R_ES, R_DX, vec);
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break;
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case 0x15: /* Determine mouse status buffer size */
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R_BX = sizeof(mouse_status);
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break;
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case 0x16: /* Store mouse buffer */
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memcpy((char *)MAKEPTR(R_ES, R_DX), &mouse_status,
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sizeof(mouse_status));
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break;
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case 0x17: /* Restore mouse buffer */
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memcpy(&mouse_status, (char *)MAKEPTR(R_ES, R_DX),
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sizeof(mouse_status));
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break;
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case 0x18: /* Install alternate handler */
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mask = R_CX & 0xff;
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if ((R_CX & 0xe0) == 0x00 ||
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mask == mouse_status.altmask[0] ||
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mask == mouse_status.altmask[1] ||
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mask == mouse_status.altmask[2] ||
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(mouse_status.altmask[i = 0] &&
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mouse_status.altmask[i = 1] &&
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mouse_status.altmask[i = 2])) {
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R_AX = 0xffff;
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break;
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}
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mouse_status.altmask[i] = R_CX;
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mouse_status.althandler[i] = MAKEVEC(R_ES, R_DX);
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break;
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case 0x19: /* Determine address of alternate event handler */
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mask = R_CX & 0xff;
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if (mask == mouse_status.altmask[0])
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vec = mouse_status.althandler[0];
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else if (mask == mouse_status.altmask[1])
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vec = mouse_status.althandler[1];
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else if (mask == mouse_status.altmask[2])
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vec = mouse_status.althandler[2];
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else
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R_CX = 0;
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PUTVEC(R_ES, R_DX, vec);
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break;
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case 0x1a: /* set mouse sensitivity */
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mouse_status.hmickey = R_BX;
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mouse_status.vmickey = R_CX;
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mouse_status.doubling = R_DX;
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break;
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case 0x1b: /* set mouse sensitivity */
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R_BX = mouse_status.hmickey;
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R_CX = mouse_status.vmickey;
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R_DX = mouse_status.doubling;
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break;
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case 0x1c: /* set mouse hardware rate */
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case 0x1d: /* set display page */
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break;
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case 0x1e: /* get display page */
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R_BX = 0; /* Always on display page 0 */
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break;
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case 0x1f: /* Disable mouse driver */
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if (mouse_status.installed) {
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PUTVEC(R_ES, R_DX, mouse_status.handler);
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mouse_status.installed = 0;
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} else {
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R_AX = 0xffff;
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}
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break;
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case 0x20: /* Enable mouse driver */
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mouse_status.installed = 1;
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break;
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case 0x21: /* Reset mouse driver */
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if (mouse_status.installed) {
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mouse_status.show = 0;
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mouse_status.handler = 0;
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mouse_status.mask = 0;
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mouse_status.cursor = 0;
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} else {
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R_AX = 0xffff;
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}
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break;
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case 0x22: /* Specified language for mouse messages */
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break;
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case 0x23: /* Get language number */
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R_BX = 0; /* Always return english */
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break;
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case 0x24: /* Get mouse type */
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R_CX = 0x0400; /* PS/2 style mouse */
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R_BX = 0x0600 + 24; /* Version 6.24 */
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break;
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default:
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R_FLAGS |= PSL_C;
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break;
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}
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}
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void
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mouse_init(void)
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{
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u_long vec;
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vec = insert_softint_trampoline();
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ivec[0x33] = vec;
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register_callback(vec, int33, "int 33");
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mouse_area[1] = 24;
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}
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