1 files changed, 134 insertions, 0 deletions
diff --git a/xorg-server/hw/kdrive/linux/bus.c b/xorg-server/hw/kdrive/linux/bus.c
new file mode 100644
index 000000000..2d7a15751
--- /dev/null
+++ b/xorg-server/hw/kdrive/linux/bus.c
@@ -0,0 +1,134 @@
+/*
+ * Copyright © 2000 Keith Packard
+ *
+ * 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 not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Keith Packard makes no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <kdrive-config.h>
+#endif
+#define NEED_EVENTS
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#include <X11/Xpoll.h>
+#include "inputstr.h"
+#include "scrnintstr.h"
+#include "kdrive.h"
+
+/* /dev/adbmouse is a busmouse */
+
+static void
+BusRead (int adbPort, void *closure)
+{
+    unsigned char   buf[3];
+    int		    n;
+    int		    dx, dy;
+    unsigned long   flags;
+
+    n = read (adbPort, buf, 3);
+    if (n == 3)
+    {
+	flags = KD_MOUSE_DELTA;
+	dx = (char) buf[1];
+	dy = -(char) buf[2];
+	if ((buf[0] & 4) == 0)
+	    flags |= KD_BUTTON_1;
+	if ((buf[0] & 2) == 0)
+	    flags |= KD_BUTTON_2;
+	if ((buf[0] & 1) == 0)
+	    flags |= KD_BUTTON_3;
+        KdEnqueuePointerEvent (closure, flags, dx, dy, 0);
+    }
+}
+
+char	*BusNames[] = {
+    "/dev/adbmouse",
+    "/dev/mouse",
+};
+
+#define NUM_BUS_NAMES	(sizeof (BusNames) / sizeof (BusNames[0]))
+
+static int
+BusInit (KdPointerInfo *pi)
+{
+    int	    i, fd = 0;
+
+    if (!pi->path || (strcmp(pi->path, "auto") == 0))
+    {
+        for (i = 0; i < NUM_BUS_NAMES; i++)
+        {
+            if ((fd = open (BusNames[i], 0)) > 0)
+            {
+                close(fd);
+                if (pi->path)
+                    xfree(pi->path);
+                pi->path = KdSaveString(BusNames[i]);
+                return Success;
+            }
+        }
+    }
+    else
+    {
+        if ((fd = open(pi->path, 0)) > 0)
+        {
+            close(fd);
+            return Success;
+        }
+    }
+
+    return !Success;
+}
+
+static int
+BusEnable (KdPointerInfo *pi)
+{
+    int fd = open(pi->path, 0);
+
+    if (fd > 0)
+    {
+        KdRegisterFd(fd, BusRead, pi);
+        pi->driverPrivate = (void *)fd;
+        return Success;
+    }
+    else
+    {
+        return !Success;
+    }
+}
+
+static void
+BusDisable (KdPointerInfo *pi)
+{
+    KdUnregisterFd(pi, (int)pi->driverPrivate, TRUE);
+}
+
+static void
+BusFini (KdPointerInfo *pi)
+{
+    return;
+}
+
+KdPointerDriver BusMouseDriver = {
+    "bus",
+    BusInit,
+    BusEnable,
+    BusDisable,
+    BusFini,
+    NULL
+};