187. Add an MS mouse driver for KDrive (#4754, Juliusz Chroboczek).

hw/kdrive/linux/Imakefile

@@ -1,5 +1,5 @@
 XCOMM $XConsortium: Imakefile /main/10 1996/12/02 10:20:33 lehors $
-XCOMM $XFree86: xc/programs/Xserver/hw/kdrive/linux/Imakefile,v 1.3 2000/09/22 06:25:09 keithp Exp $
+XCOMM $XFree86: xc/programs/Xserver/hw/kdrive/linux/Imakefile,v 1.5 2001/03/30 02:15:20 keithp Exp $
 KDRIVE=..
 #include "../Kdrive.tmpl"
 
@@ -8,9 +8,9 @@ TSSRCS = ts.c
 TSOBJS = ts.o
 #endif
 
-SRCS = keyboard.c linux.c ps2.c bus.c agp.c  $(TSSRCS)
+SRCS = keyboard.c linux.c ps2.c ms.c bus.c agp.c  $(TSSRCS)
 
-OBJS = keyboard.o linux.o ps2.o bus.o agp.o  $(TSOBJS)
+OBJS = keyboard.o linux.o ps2.o ms.o bus.o agp.o  $(TSOBJS)
 
 INCLUDES = -I. $(KDINCS)
 

hw/kdrive/linux/ms.c

@@ -0,0 +1,158 @@
+/*
+Copyright (c) 2001 by Juliusz Chroboczek
+Copyright (c) 1999 by Keith Packard
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+/* $XFree86$ */
+
+#define NEED_EVENTS
+#include "X.h"
+#include "Xproto.h"
+#include "inputstr.h"
+#include "scrnintstr.h"
+#include "kdrive.h"
+#include "Xpoll.h"
+#include <errno.h>
+#include <termios.h>
+
+int
+MsReadBytes (int fd, char *buf, int len, int min)
+{
+    int		    n, tot;
+    fd_set	    set;
+    struct timeval  tv;
+
+    tot = 0;
+    while (len)
+    {
+	n = read (fd, buf, len);
+	if (n > 0)
+	{
+	    tot += n;
+	    buf += n;
+	    len -= n;
+	}
+	if (tot % min == 0)
+	    break;
+	FD_ZERO (&set);
+	FD_SET (fd, &set);
+	tv.tv_sec = 0;
+	tv.tv_usec = 100 * 1000;
+	n = select (fd + 1, &set, 0, 0, &tv);
+	if (n <= 0)
+	    break;
+    }
+    return tot;
+}
+
+void
+MsRead (int port)
+{
+    unsigned char   buf[3 * 200];
+    unsigned char   *b;
+    int		    n;
+    int		    dx, dy;
+    unsigned long   flags;
+
+    while ((n = MsReadBytes (port, buf, sizeof (buf), 3)) > 0)
+    {
+	b = buf;
+	while (n >= 3)
+	{
+	    flags = KD_MOUSE_DELTA;
+
+	    if (b[0] & 0x20)
+		flags |= KD_BUTTON_1;
+	    if (b[0] & 0x10)
+		flags |= KD_BUTTON_3;
+	    
+	    dx = (char)(((b[0] & 0x03) << 6) | (b[1] & 0x3F));
+	    dy = (char)(((b[0] & 0x0C) << 4) | (b[2] & 0x3F));
+            n -= 3;
+            b += 3;
+	    KdEnqueueMouseEvent (flags, dx, dy);
+	}
+    }
+}
+
+int
+MsInit (void)
+{
+    int port;
+    char *device = "/dev/mouse";
+    struct termios t;
+    int ret;
+
+    port = open (device, O_RDWR | O_NONBLOCK);
+    if(port < 0) {
+        ErrorF("Couldn't open %s (%d)\n", device, (int)errno);
+        return 0;
+    } else if (port == 0) {
+        ErrorF("Opening %s returned 0!  Please complain to Keith.\n",
+               device);
+        close(port);
+        return 0;
+    }
+
+    if(!isatty(port)) {
+        ErrorF("%s is not a tty\n", device);
+        goto bail;
+    }
+
+    ret = tcgetattr(port, &t);
+    if(ret < 0) {
+        ErrorF("Couldn't tcgetattr(%s): %d\n", device, errno);
+        goto bail;
+    }
+    t.c_iflag &= ~ (IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR |
+                   IGNCR | ICRNL | IXON | IXOFF);
+    t.c_oflag &= ~ OPOST;
+    t.c_lflag &= ~ (ECHO | ECHONL | ICANON | ISIG | IEXTEN);
+    t.c_cflag &= ~ (CSIZE | PARENB);
+    t.c_cflag |= CS8 | CLOCAL | CSTOPB;
+
+    cfsetispeed (&t, B1200);
+    cfsetospeed (&t, B1200);
+    t.c_cc[VMIN] = 1;
+    t.c_cc[VTIME] = 0;
+    ret = tcsetattr(port, TCSANOW, &t);
+    if(ret < 0) {
+        ErrorF("Couldn't tcsetattr(%s): %d\n", device, errno);
+        goto bail;
+    }
+    return port;
+
+ bail:
+    close(port);
+    return 0;
+}
+
+void
+MsFini (int port)
+{
+    if (port >= 0)
+	close(port);
+}
+
+KdMouseFuncs MsMouseFuncs = {
+    MsInit,
+    MsRead,
+    MsFini
+};

hw/kdrive/src/kdrive.h

@@ -21,7 +21,7 @@
  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  */
-/* $XFree86: xc/programs/Xserver/hw/kdrive/kdrive.h,v 1.18 2001/07/20 19:35:29 keithp Exp $ */
+/* $XFree86: xc/programs/Xserver/hw/kdrive/kdrive.h,v 1.19 2001/07/24 21:26:17 keithp Exp $ */
 
 #include <stdio.h>
 #include "X.h"
@@ -600,6 +600,7 @@ ProcessInputEvents ();
 
 extern KdMouseFuncs	Ps2MouseFuncs;
 extern KdMouseFuncs	BusMouseFuncs;
+extern KdMouseFuncs	MsMouseFuncs;
 #ifdef TOUCHSCREEN
 extern KdMouseFuncs	TsFuncs;
 #endif