PS2 mouse bios emulation (c2woody)
Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1720
This commit is contained in:
Peter Veenstra
parent
5de58e54bc
commit
7deaa068a5
3 changed files with 138 additions and 15 deletions
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@ -16,9 +16,16 @@
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/* $Id: mouse.h,v 1.6 2004-03-14 13:39:45 qbix79 Exp $ */
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#ifndef _MOUSE_H_
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#define _MOUSE_H_
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void Mouse_ShowCursor(void);
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void Mouse_HideCursor(void);
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void Mouse_SetPS2State(bool use);
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void Mouse_ChangePS2Callback(Bit16u pseg, Bit16u pofs);
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void Mouse_CursorMoved(float x,float y);
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void Mouse_CursorSet(float x,float y);
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@ -28,3 +35,5 @@ void Mouse_ButtonReleased(Bit8u button);
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void Mouse_AutoLock(bool enable);
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void Mouse_NewVideoMode(void);
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#endif
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@ -16,7 +16,7 @@
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/* $Id: bios.cpp,v 1.29 2004-02-29 21:55:49 harekiet Exp $ */
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/* $Id: bios.cpp,v 1.30 2004-03-14 13:39:45 qbix79 Exp $ */
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#include <time.h>
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#include "dosbox.h"
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@ -29,6 +29,7 @@
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#include "pic.h"
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#include "joystick.h"
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#include "dos_inc.h"
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#include "mouse.h"
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static Bitu call_int1a,call_int11,call_int8,call_int17,call_int12,call_int15,call_int1c;
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static Bitu call_int1,call_int70;
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@ -303,12 +304,50 @@ static Bitu INT15_Handler(void) {
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CALLBACK_SCF(true);
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break;
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case 0xc2: /* BIOS PS2 Pointing Device Support */
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case 0xc4: /* BIOS POS Programma option Select */
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/*
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Damn programs should use the mouse drivers
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So let's fail these calls
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*/
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LOG(LOG_BIOS,LOG_NORMAL)("INT15:Function %X called,bios mouse not supported",reg_ah);
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switch (reg_al) {
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case 0x00: // enable/disable
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if (reg_bh==0) { // disable
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Mouse_SetPS2State(false);
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reg_ah=0;
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CALLBACK_SCF(false);
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} else if (reg_bh==0x01) { //enable
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Mouse_SetPS2State(true);
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reg_ah=0;
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CALLBACK_SCF(false);
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} else CALLBACK_SCF(true);
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break;
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case 0x01: // reset
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reg_bx=0x00aa; // mouse
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CALLBACK_SCF(false);
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break;
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case 0x02: // set sampling rate
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CALLBACK_SCF(false);
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break;
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case 0x03: // set resolution
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CALLBACK_SCF(false);
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break;
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case 0x04: // get type
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reg_bh=0; // ID
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CALLBACK_SCF(false);
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break;
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case 0x05: // initialize
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CALLBACK_SCF(false);
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break;
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case 0x06: // extended commands
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if ((reg_bh==0x01) || (reg_bh==0x02)) CALLBACK_SCF(false);
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else CALLBACK_SCF(true);
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break;
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case 0x07: // set callback
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Mouse_ChangePS2Callback(SegValue(es),reg_bx);
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CALLBACK_SCF(false);
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break;
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default:
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CALLBACK_SCF(true);
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break;
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}
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break;
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case 0xc4: /* BIOS POS Programm option Select */
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LOG(LOG_BIOS,LOG_NORMAL)("INT15:Function %X called, bios mouse not supported",reg_ah);
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CALLBACK_SCF(true);
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break;
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default:
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@ -398,19 +437,20 @@ void BIOS_Init(Section* sec) {
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/* Setup equipment list */
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Bitu config=0x4400; //1 Floppy, 2 serial and 1 parrallel
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#if (C_FPU)
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config|=0x2;
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config|=0x2; //FPU
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#endif
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switch (machine) {
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case MCH_HERC:
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config|=0x30; //Startup monochrome
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break;
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case MCH_CGA: case MCH_TANDY:
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config|=0x20; //STartup 80x25 color
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config|=0x20; //Startup 80x25 color
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break;
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default:
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config|=0; //EGA VGA
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break;
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}
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config |= 0x04; // PS2 mouse
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mem_writew(BIOS_CONFIGURATION,config);
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/* Setup extended memory size */
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IO_Write(0x70,0x30);
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@ -16,7 +16,7 @@
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/* $Id: mouse.cpp,v 1.32 2004-02-29 22:22:56 harekiet Exp $ */
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/* $Id: mouse.cpp,v 1.33 2004-03-14 13:39:45 qbix79 Exp $ */
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#include <string.h>
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#include "dosbox.h"
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@ -28,9 +28,71 @@
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#include "inout.h"
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#include "int10.h"
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#include "bios.h"
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#include "cpu.h"
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static Bitu call_int33,call_int74;
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static Bit16u ps2cbseg, ps2cbofs;
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static bool useps2callback;
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static Bit16u call_ps2;
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static RealPt ps2_callback;
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static Bit16s oldmouseX, oldmouseY;
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void Mouse_SetPS2State(bool use) {
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if ((SegValue(es)!=0) && (reg_bx!=0)) useps2callback = use;
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else useps2callback = false;
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Mouse_AutoLock(useps2callback);
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}
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void Mouse_ChangePS2Callback(Bit16u pseg, Bit16u pofs) {
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if ((pseg==0) && (pofs==0)) useps2callback = false;
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else useps2callback = true;
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ps2cbseg = pseg;
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ps2cbofs = pofs;
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Mouse_AutoLock(useps2callback);
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}
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void DoPS2Callback(Bit16u data, Bit16s mouseX, Bit16s mouseY) {
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if (useps2callback) {
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Bit16u mdat = (data & 0x03) | 0x08;
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Bit16s xdiff = mouseX-oldmouseX;
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Bit16s ydiff = oldmouseY-mouseY;
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oldmouseX = mouseX;
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oldmouseY = mouseY;
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if ((xdiff>0xff) || (xdiff<-0xff)) mdat |= 0x40; // x overflow
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if ((ydiff>0xff) || (ydiff<-0xff)) mdat |= 0x80; // y overflow
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xdiff %= 256;
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ydiff %= 256;
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if (xdiff<0) {
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xdiff = (0x100+xdiff);
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mdat |= 0x10;
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}
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if (ydiff<0) {
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ydiff = (0x100+ydiff);
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mdat |= 0x20;
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}
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CPU_Push16((Bit16u)mdat);
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CPU_Push16((Bit16u)(xdiff % 256));
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CPU_Push16((Bit16u)(ydiff % 256));
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CPU_Push16((Bit16u)0);
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CPU_Push16(RealSeg(ps2_callback));
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CPU_Push16(RealOff(ps2_callback));
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SegSet16(cs, ps2cbseg);
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reg_ip = ps2cbofs;
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}
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}
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Bitu PS2_Handler(void) {
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reg_sp += 8; // remove the 4 words
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return CBRET_NONE;
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}
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// forward
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void WriteMouseIntVector(void);
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@ -352,11 +414,16 @@ void Mouse_CursorMoved(float x,float y) {
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mouse.mickey_y += dy;
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mouse.x += dx;
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if (mouse.x>mouse.max_x) mouse.x=mouse.max_x;
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if (mouse.x<mouse.min_x) mouse.x=mouse.min_x;
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mouse.y += dy;
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if (mouse.y>mouse.max_y) mouse.y=mouse.max_y;
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if (mouse.y<mouse.min_y) mouse.y=mouse.min_y;
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/* ignore constraints if using PS2 mouse callback in the bios */
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if (!useps2callback) {
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if (mouse.x > mouse.max_x) mouse.x = mouse.max_x;
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if (mouse.x < mouse.min_x) mouse.x = mouse.min_x;
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if (mouse.y > mouse.max_y) mouse.y = mouse.max_y;
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if (mouse.y < mouse.min_y) mouse.y = mouse.min_y;
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}
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Mouse_AddEvent(MOUSE_MOVED);
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DrawCursor();
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}
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@ -762,6 +829,7 @@ static Bitu INT74_Handler(void) {
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SegSet16(ds,oldds); SegSet16(es,oldes); SegSet16(ss,oldss); // Save segments
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}
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DoPS2Callback(mouse.event_queue[mouse.events].buttons, POS_X, POS_Y);
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}
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IO_Write(0xa0,0x20);
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IO_Write(0x20,0x20);
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@ -783,7 +851,7 @@ void CreateMouseCallback(void)
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{
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// Create callback
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call_int33=CALLBACK_Allocate();
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CALLBACK_Setup(call_int33,&INT33_Handler,CB_IRET);
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CALLBACK_Setup(call_int33,&INT33_Handler,CB_IRET,"Mouse");
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// Create a mouse vector with weird address
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// for strange mouse detection routines in Sim City & Wasteland
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Bit16u ofs = call_int33<<4;
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@ -809,6 +877,12 @@ void MOUSE_Init(Section* sec) {
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real_writed(0,((0x8+MOUSE_IRQ)<<2),CALLBACK_RealPointer(call_int74));
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}
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useps2callback = false;
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call_ps2=CALLBACK_Allocate();
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CALLBACK_Setup(call_ps2,&PS2_Handler,CB_IRET,"ps2 bios callback");
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ps2_callback=CALLBACK_RealPointer(call_ps2);
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memset(&mouse,0,sizeof(mouse));
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mouse_reset_hardware();
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mouse_reset();
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