Patch for MS Bus mouse for Roell's X11r4

[James Van Artsdalen]

Here's a hack that seems to make the Microsoft Bus mouse work with
Roell's X11r4 port.  Use "-4 -dev /dev/mouse" to tell the server it's
a Bus mouse and that it's on /dev/mouse.

*** /tmp/,RCSt1a04103	Sun Oct 21 20:07:25 1990
--- mit/server/ddx/ibm/common/ibmCmdArgs.c	Sun Oct 21 18:32:57 1990
***************
*** 335,340 ****
--- 335,348 ----
  }
  
  static int
+ selectMSBus(myArg)
+      char **myArg;
+ {
+   SYSVMouseType = MicroSoftBus;
+   return 1;
+ }
+ 
+ static int
  selectMSM ( myArg )
  char **myArg ;
  {
***************
*** 431,436 ****
--- 439,447 ----
  	{ "-3",
  	  "   -3              select MouseSystems Mouse (default)\n",
  	  selectMSM },
+ 	{ "-4",
+ 	  "   -4              select Microsoft Bus mouse\n",
+ 	  selectMSBus },
  	{ "-dev",
  	  "   -dev <path>     specify the mouse-device (default: /dev/tty00)\n",
  	  mousedev },
*** /tmp/,RCSt1a04108	Sun Oct 21 20:07:25 1990
--- mit/server/ddx/ibm/SYSV/OSio.h	Sun Oct 21 20:06:57 1990
***************
*** 69,74 ****
--- 69,75 ----
  
  #define MicroSoft    1
  #define MouseSystems 0
+ #define MicroSoftBus 2
  
  
  extern	int	SYSVDefaultDisplay ;
***************
*** 81,86 ****
--- 82,88 ----
  extern  int     SYSVMouseType;
  extern  int     MSMPtrEvent();
  extern  int     MSPtrEvent();
+ extern  int     MSBusPtrEvent();
  extern  int     (* SYSVPtrEvents)();
  
  extern  int     SYSVMouseState;
*** /tmp/,RCSt1a04113	Sun Oct 21 20:07:26 1990
--- mit/server/ddx/ibm/SYSV/SYSVMouse.c	Sun Oct 21 18:29:10 1990
***************
*** 135,140 ****
--- 135,149 ----
  		ioctl(SYSVmouseFd,TCSETA,&tty);
  		SYSVPtrEvents = MSPtrEvent;
  		break;
+ 
+ 	      case MicroSoftBus:
+ 		if ((SYSVmouseFd= open(SYSVPtrDev,O_RDONLY | O_NDELAY)) < 0)
+ 		  {
+ 		    Error ("Opening MicroSoftBusMouse");
+ 		    return (!Success);
+ 		  }
+ 		SYSVPtrEvents = MSBusPtrEvent;
+ 		break;
  	      }}
  
  	    SYSVMouseState = 0;
*** /tmp/,RCSt1a04118	Sun Oct 21 20:07:27 1990
--- mit/server/ddx/ibm/SYSV/SYSVEvents.c	Sun Oct 21 18:41:36 1990
***************
*** 497,502 ****
--- 497,596 ----
  }
  
  
+ /***====================================================================***/
+ 
+ int
+ MSBusPtrEvent()
+ {
+   extern int      SYSVMouseChordDelay;
+   static int      buttons;
+   static int      DeltaX,DeltaY;
+   xEvent          e;
+   int             i,nBytes;
+   unsigned char   rBuf[64];
+   int             changed;
+ 
+   nBytes = read (SYSVmouseFd, &rBuf, 64);
+   if (nBytes == 0)
+     return(0);
+ 
+   for (i = 0; i < nBytes; i++)
+     {
+       switch (SYSVMouseState)
+ 	{
+ 	case 0:
+ 	  if ((rBuf[i] & 0xF8) == 0x80)
+ 	    {
+ 	      buttons = (~rBuf[i]) & 0x07;
+ 	      SYSVMouseState++;
+ 	    }
+ 	  break;
+ 
+ 	case 1:
+ 	  DeltaX = (signed char) rBuf[i];
+ 	  SYSVMouseState++;
+ 	  break;
+ 
+ 	case 2:
+ 	  DeltaY = (signed char) rBuf[i];
+ 	  SYSVMouseState++;
+ 	  break;
+ 
+ 	case 3:
+ 	  SYSVMouseState++;
+ 	  break;
+ 
+ 	case 4:
+ 	  SYSVMouseState=0;
+ 	  break;
+ 	}
+ 
+       if (SYSVMouseState == 0)
+ 	{
+ 	  TRACE (("MSM_PtrEvent (%d,%d)\n", DeltaX,DeltaY));
+ 	  pendingX += DeltaX;
+ 	  pendingY += DeltaY;
+ 
+ 	  if (pendingX || pendingY)
+ 	    SYSVFlushMouse ();
+ 	  e.u.keyButtonPointer.rootX = SYSVCurrentX;
+ 	  e.u.keyButtonPointer.rootY = SYSVCurrentY;
+ 	  e.u.keyButtonPointer.time  = GET_OS_TIME();
+ 
+ 	  changed = buttons ^ lastButtons;
+ 	  if (changed & MSM_LBUTTON)
+ 	    {
+ 	      if (buttons & MSM_LBUTTON)
+ 		e.u.u.type = DOWN;
+ 	      else
+ 		e.u.u.type = UP;
+ 	      e.u.u.detail= LEFT;
+ 	      (*ibmPtr->processInputProc)(&e,ibmPtr,1);
+ 	    }
+ 	  if (changed & MSM_RBUTTON)
+ 	    {
+ 	      if (buttons & MSM_RBUTTON)
+ 		e.u.u.type = DOWN;
+ 	      else
+ 		e.u.u.type = UP;
+ 	      e.u.u.detail= RIGHT;
+ 	      (*ibmPtr->processInputProc)(&e,ibmPtr,1);
+ 	    }
+ 	  if (changed & MSM_MBUTTON)
+ 	    {
+ 	      if (buttons & MSM_MBUTTON)
+ 		e.u.u.type = DOWN;
+ 	      else
+ 		e.u.u.type = UP;
+ 	      e.u.u.detail= MIDDLE;
+ 	      (*ibmPtr->processInputProc)(&e,ibmPtr,1);
+ 	    }
+ 	  lastButtons = buttons;
+ 	}
+     }
+   return(nBytes);
+ }
+ 
  
  /***====================================================================***/
-- 
James R. Van Artsdalen          james at bigtex.cactus.org   "Live Free or Die"
Dell Computer Co    9505 Arboretum Blvd Austin TX 78759         512-338-8789