PPDEV: Allow to switch direction of the printer port

[Uwe Bonnes]

Changelog:
	dlls/winedos/ppdev.c:IO_pp_outp
	Allow to switch direction of the printer port

This lets mitoujtag.exe access the Jtag chain  via the parallel port and a
Xilinx parallel cable.
-- 
Uwe Bonnes                bon(a)elektron.ikp.physik.tu-darmstadt.de

Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
--------- Tel. [phone] -------- Fax. [phone] ----------
Index: wine/dlls/winedos/ppdev.c
===================================================================
RCS file: /home/wine/wine/dlls/winedos/ppdev.c,v
retrieving revision 1.1
diff -u -w -r1.1 ppdev.c
--- wine/dlls/winedos/ppdev.c	17 Sep 2003 22:45:46 -0000	1.1
+++ wine/dlls/winedos/ppdev.c	4 Feb 2004 15:27:00 -0000
@@ -300,7 +300,16 @@
          case 0:
            return IO_pp_do_access(idx,PPWDATA,res);
          case 2:
-           return IO_pp_do_access(idx,PPWCONTROL,res);
+	   { 
+	     /* We can't switch port direction via PPWCONTROL,
+		so do it via PPDATADIR
+	     */
+	     DWORD mode = *res & 0x20;
+	     IO_pp_do_access(idx,PPDATADIR,&mode);
+	     mode = (*res & ~0x20);
+	     return IO_pp_do_access(idx,PPWCONTROL,&mode);
+	   }
+
          case 1:
          case 0x400:
          case 0x402: