Add support for ARM linux TS lib (disabled by default) in kdrive

hw/kdrive/linux/Imakefile

@@ -1,12 +1,17 @@
 XCOMM $XConsortium: Imakefile /main/10 1996/12/02 10:20:33 lehors $
-XCOMM $XFree86: xc/programs/Xserver/hw/kdrive/linux/Imakefile,v 1.7 2001/09/29 04:16:39 keithp Exp $
+XCOMM $XFree86: xc/programs/Xserver/hw/kdrive/linux/Imakefile,v 1.8 2001/10/12 06:33:09 keithp Exp $
 KDRIVE=..
 #include "../Kdrive.tmpl"
 
 #if TouchScreen
+#if HasTsLib
+TSSRCS = tslib.c
+TSOBJS = tslib.o
+#else
 TSSRCS = ts.c
 TSOBJS = ts.o
 #endif
+#endif
 
 SRCS = keyboard.c linux.c mouse.c ps2.c bus.c ms.c agp.c $(TSSRCS)
 

hw/kdrive/linux/tslib.c

@@ -0,0 +1,187 @@
+/*
+ * $XFree86$
+ * TSLIB based touchscreen driver for TinyX
+ * Derived from ts.c by Keith Packard
+ * Derived from ps2.c by Jim Gettys
+ *
+ * Copyright © 1999 Keith Packard
+ * Copyright © 2000 Compaq Computer Corporation
+ * Copyright © 2002 MontaVista Software Inc.
+ * 
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Keith Packard or Compaq not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Keith Packard and Compaq makes no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD AND COMPAQ DISCLAIM ALL WARRANTIES WITH REGARD TO THIS 
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, 
+ * IN NO EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ * 
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Michael Taht or MontaVista not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Michael Taht and Montavista make no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * MICHAEL TAHT AND MONTAVISTA DISCLAIM ALL WARRANTIES WITH REGARD TO THIS 
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, 
+ * IN NO EVENT SHALL EITHER BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+
+#define NEED_EVENTS
+#include "X.h"
+#include "Xproto.h"
+#include "inputstr.h"
+#include "scrnintstr.h"
+#include "kdrive.h"
+#include "Xpoll.h"
+#include <sys/ioctl.h>
+#include <tslib.h>
+
+static long lastx = 0, lasty = 0;
+int TsScreen;
+extern int TsFbdev;
+static struct tsdev *tsDev = NULL;
+
+void
+TsRead (int tsPort, void *closure)
+{
+    KdMouseInfo	    *mi = closure;
+    int		    fd = (int) mi->driver;
+    struct ts_sample event;
+    int		    n;
+    long	    pressure;
+    long	    x, y;
+    unsigned long   flags;
+    unsigned long   buttons;
+
+    n = ts_read(tsDev, &event, 1);
+    if (n == 1)  
+    {
+	if (event.pressure) 
+	{
+	    /* 
+	     * HACK ATTACK.  (static global variables used !)
+	     * Here we test for the touch screen driver actually being on the
+	     * touch screen, if it is we send absolute coordinates. If not,
+	     * then we send delta's so that we can track the entire vga screen.
+	     */
+	    if (TsScreen == TsFbdev) {
+	    	flags = KD_BUTTON_1;
+	    	x = event.x;
+	    	y = event.y;
+	    } else {
+	    	flags = /* KD_BUTTON_1 |*/ KD_MOUSE_DELTA;
+	    	if ((lastx == 0) || (lasty == 0)) {
+	    	    x = 0;
+	    	    y = 0;
+	    	} else {
+	    	    x = event.x - lastx;
+	    	    y = event.y - lasty;
+	    	}
+	    	lastx = event.x;
+	    	lasty = event.y;
+	    }
+	} else {
+	    flags = KD_MOUSE_DELTA;
+	    x = 0;
+	    y = 0;
+	    lastx = 0;
+	    lasty = 0;
+	}
+	KdEnqueueMouseEvent (mi, flags, x, y);
+    }
+}
+
+static char *TsNames[] = {
+  "/dev/ts",	
+  "/dev/touchscreen/0",
+};
+
+#define NUM_TS_NAMES	(sizeof (TsNames) / sizeof (TsNames[0]))
+
+int TsInputType;
+
+int
+TslibInit (void)
+{
+    int		i;
+    KdMouseInfo	*mi, *next;
+    int		fd= 0;
+    int		n = 0;
+
+    if (!TsInputType)
+	TsInputType = KdAllocInputType ();
+    
+    for (mi = kdMouseInfo; mi; mi = next)
+    {
+	next = mi->next;
+	if (mi->inputType)
+	    continue;
+
+	if (!mi->name)
+	{
+	    for (i = 0; i < NUM_TS_NAMES; i++)    
+	    {
+		if(!(tsDev = ts_open(TsNames[i],0))) continue;
+	        ts_config(tsDev); 
+	        fd=ts_fd(tsDev);
+		if (fd >= 0) 
+		{
+		    mi->name = KdSaveString (TsNames[i]);
+		    break;
+		}
+	    }
+	}
+
+	if (fd > 0 && tsDev != 0) 
+	  {
+	    mi->driver = (void *) fd;
+	    mi->inputType = TsInputType;
+	    	if (KdRegisterFd (TsInputType, fd, TsRead, (void *) mi))
+		    n++;
+	  } 
+	else 
+	  if (fd > 0) close(fd);
+	}
+}
+
+void
+TslibFini (void)
+{
+    KdMouseInfo	*mi;
+
+    KdUnregisterFds (TsInputType, TRUE);
+    for (mi = kdMouseInfo; mi; mi = mi->next)
+    {
+	if (mi->inputType == TsInputType)
+	{
+	    if(mi->driver) ts_close(tsDev);
+	    mi->driver = 0;
+	    mi->inputType = 0;
+	}
+    }
+}
+
+KdMouseFuncs TsFuncs = {
+    TslibInit,
+    TslibFini
+};