Importing xserver from X.Org 7.2RC2

1 files changed, 737 insertions, 0 deletions

diff --git a/xserver/hw/xfree86/os-support/bsd/bsd_init.c b/xserver/hw/xfree86/os-support/bsd/bsd_init.c
new file mode 100644
index 000000000..eb6d85053
--- /dev/null
+++ b/xserver/hw/xfree86/os-support/bsd/bsd_init.c
@@ -0,0 +1,737 @@
+/*
+ * Copyright 1992 by Rich Murphey <Rich@Rice.edu>
+ * Copyright 1993 by David Wexelblat <dwex@goblin.org>
+ *
+ * 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 names of Rich Murphey and David Wexelblat 
+ * not be used in advertising or publicity pertaining to distribution of 
+ * the software without specific, written prior permission.  Rich Murphey and
+ * David Wexelblat make no representations about the suitability of this 
+ * software for any purpose.  It is provided "as is" without express or 
+ * implied warranty.
+ *
+ * RICH MURPHEY AND DAVID WEXELBLAT DISCLAIM ALL WARRANTIES WITH REGARD TO 
+ * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND 
+ * FITNESS, IN NO EVENT SHALL RICH MURPHEY OR DAVID WEXELBLAT 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.
+ *
+ */
+/* $XConsortium: bsd_init.c /main/8 1996/10/23 13:13:05 kaleb $ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <X11/X.h>
+
+#include "compiler.h"
+
+#include "xf86.h"
+#include "xf86Priv.h"
+#include "xf86_OSlib.h"
+
+#include <sys/utsname.h>
+#include <sys/ioctl.h>
+#include <stdlib.h>
+#include <errno.h>
+
+static Bool KeepTty = FALSE;
+static int devConsoleFd = -1;
+#if defined (SYSCONS_SUPPORT) || defined (PCVT_SUPPORT)
+static int VTnum = -1;
+static int initialVT = -1;
+#endif
+
+#ifdef PCCONS_SUPPORT
+/* Stock 0.1 386bsd pccons console driver interface */
+#ifndef __OpenBSD__
+#  define PCCONS_CONSOLE_DEV1 "/dev/ttyv0"
+#else
+#  define PCCONS_CONSOLE_DEV1 "/dev/ttyC0"
+#endif
+#define PCCONS_CONSOLE_DEV2 "/dev/vga"
+#define PCCONS_CONSOLE_MODE O_RDWR|O_NDELAY
+#endif
+
+#ifdef SYSCONS_SUPPORT
+/* The FreeBSD 1.1 version syscons driver uses /dev/ttyv0 */
+#define SYSCONS_CONSOLE_DEV1 "/dev/ttyv0"
+#define SYSCONS_CONSOLE_DEV2 "/dev/vga"
+#define SYSCONS_CONSOLE_MODE O_RDWR|O_NDELAY
+#endif
+
+#ifdef PCVT_SUPPORT
+/* Hellmuth Michaelis' pcvt driver */
+#ifndef __OpenBSD__
+#  define PCVT_CONSOLE_DEV "/dev/ttyv0"
+#else
+#  define PCVT_CONSOLE_DEV "/dev/ttyC0"
+#endif
+#define PCVT_CONSOLE_MODE O_RDWR|O_NDELAY
+#endif
+
+#if defined(WSCONS_SUPPORT) && defined(__NetBSD__)
+/* NetBSD's new console driver */
+#define WSCONS_PCVT_COMPAT_CONSOLE_DEV "/dev/ttyE0"
+#endif
+
+#ifdef __GLIBC__
+#define setpgrp setpgid
+#endif
+
+#define CHECK_DRIVER_MSG \
+  "Check your kernel's console driver configuration and /dev entries"
+
+static char *supported_drivers[] = {
+#ifdef PCCONS_SUPPORT
+	"pccons (with X support)",
+#endif
+#ifdef SYSCONS_SUPPORT
+	"syscons",
+#endif
+#ifdef PCVT_SUPPORT
+	"pcvt",
+#endif
+#ifdef WSCONS_SUPPORT
+	"wscons",
+#endif
+};
+
+
+/*
+ * Functions to probe for the existance of a supported console driver.
+ * Any function returns either a valid file descriptor (driver probed
+ * succesfully), -1 (driver not found), or uses FatalError() if the
+ * driver was found but proved to not support the required mode to run
+ * an X server.
+ */
+
+typedef int (*xf86ConsOpen_t)(void);
+
+#ifdef PCCONS_SUPPORT
+static int xf86OpenPccons(void);
+#endif /* PCCONS_SUPPORT */
+
+#ifdef SYSCONS_SUPPORT
+static int xf86OpenSyscons(void);
+#endif /* SYSCONS_SUPPORT */
+
+#ifdef PCVT_SUPPORT
+static int xf86OpenPcvt(void);
+#endif /* PCVT_SUPPORT */
+
+#ifdef WSCONS_SUPPORT
+static int xf86OpenWScons(void);
+#endif
+
+/*
+ * The sequence of the driver probes is important; start with the
+ * driver that is best distinguishable, and end with the most generic
+ * driver.  (Otherwise, pcvt would also probe as syscons, and either
+ * pcvt or syscons might succesfully probe as pccons.)
+ */
+static xf86ConsOpen_t xf86ConsTab[] = {
+#ifdef PCVT_SUPPORT
+    xf86OpenPcvt,
+#endif
+#ifdef SYSCONS_SUPPORT
+    xf86OpenSyscons,
+#endif
+#ifdef PCCONS_SUPPORT
+    xf86OpenPccons,
+#endif
+#ifdef WSCONS_SUPPORT
+    xf86OpenWScons,
+#endif
+    (xf86ConsOpen_t)NULL
+};
+
+
+void
+xf86OpenConsole()
+{
+    int i, fd = -1;
+    xf86ConsOpen_t *driver;
+#if defined (SYSCONS_SUPPORT) || defined (PCVT_SUPPORT)
+    int result;
+    struct utsname uts;
+    vtmode_t vtmode;
+#endif
+    
+    if (serverGeneration == 1)
+    {
+	/* check if we are run with euid==0 */
+	if (geteuid() != 0)
+	{
+	    FatalError("xf86OpenConsole: Server must be suid root");
+	}
+
+	if (!KeepTty)
+	{
+	    /*
+	     * detaching the controlling tty solves problems of kbd character
+	     * loss.  This is not interesting for CO driver, because it is 
+	     * exclusive.
+	     */
+	    setpgrp(0, getpid());
+	    if ((i = open("/dev/tty",O_RDWR)) >= 0)
+	    {
+		ioctl(i,TIOCNOTTY,(char *)0);
+		close(i);
+	    }
+	}
+
+	/* detect which driver we are running on */
+	for (driver = xf86ConsTab; *driver; driver++)
+	{
+	    if ((fd = (*driver)()) >= 0)
+		break;
+	}
+
+	/* Check that a supported console driver was found */
+	if (fd < 0)
+	{
+	    char cons_drivers[80] = {0, };
+	    for (i = 0; i < sizeof(supported_drivers) / sizeof(char *); i++)
+	    {
+		if (i)
+		{
+		    strcat(cons_drivers, ", ");
+		}
+		strcat(cons_drivers, supported_drivers[i]);
+	    }
+	    FatalError(
+		"%s: No console driver found\n\tSupported drivers: %s\n\t%s",
+		"xf86OpenConsole", cons_drivers, CHECK_DRIVER_MSG);
+	}
+#if 0 /* stdin is already closed in OsInit() */
+	fclose(stdin);
+#endif
+	xf86Info.consoleFd = fd;
+	xf86Info.screenFd = fd;
+
+	switch (xf86Info.consType)
+	{
+#ifdef PCCONS_SUPPORT
+	case PCCONS:
+	    if (ioctl (xf86Info.consoleFd, CONSOLE_X_MODE_ON, 0) < 0)
+	    {
+		FatalError("%s: CONSOLE_X_MODE_ON failed (%s)\n%s",
+			   "xf86OpenConsole", strerror(errno),
+			   CHECK_DRIVER_MSG);
+	    }
+	    /*
+	     * Hack to prevent keyboard hanging when syslogd closes
+	     * /dev/console
+	     */
+	    if ((devConsoleFd = open("/dev/console", O_WRONLY,0)) < 0)
+	    {
+		xf86Msg(X_WARNING,
+			"xf86OpenConsole: couldn't open /dev/console (%s)\n",
+			strerror(errno));
+	    }
+	    break;
+#endif
+#if defined (SYSCONS_SUPPORT) || defined (PCVT_SUPPORT)
+	case SYSCONS:
+	    /* as of FreeBSD 2.2.8, syscons driver does not need the #1 vt
+	     * switching anymore. Here we check for FreeBSD 3.1 and up.
+	     * Add cases for other *BSD that behave the same.
+	    */
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+	    uname (&uts);
+	    i = atof(uts.release) * 100;
+	    if (i >= 310) goto acquire_vt;
+#endif
+	    /* otherwise fall through */
+	case PCVT:
+	    /*
+	     * First activate the #1 VT.  This is a hack to allow a server
+	     * to be started while another one is active.  There should be
+	     * a better way.
+	     */
+	    if (initialVT != 1) {
+
+		if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, 1) != 0)
+		{
+		    xf86Msg(X_WARNING,
+				"xf86OpenConsole: VT_ACTIVATE failed\n");
+		}
+		sleep(1);
+	    }
+
+acquire_vt:
+	    /*
+	     * now get the VT
+	     */
+	    SYSCALL(result =
+		    ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno));
+	    if (result != 0)
+	    {
+    	        xf86Msg(X_WARNING, "xf86OpenConsole: VT_ACTIVATE failed\n");
+	    }
+	    SYSCALL(result =
+		    ioctl(xf86Info.consoleFd, VT_WAITACTIVE, xf86Info.vtno));
+	    if (result != 0)
+	    {
+	        xf86Msg(X_WARNING, "xf86OpenConsole: VT_WAITACTIVE failed\n");
+	    }
+
+	    signal(SIGUSR1, xf86VTRequest);
+
+	    vtmode.mode = VT_PROCESS;
+	    vtmode.relsig = SIGUSR1;
+	    vtmode.acqsig = SIGUSR1;
+	    vtmode.frsig = SIGUSR1;
+	    if (ioctl(xf86Info.consoleFd, VT_SETMODE, &vtmode) < 0) 
+	    {
+	        FatalError("xf86OpenConsole: VT_SETMODE VT_PROCESS failed");
+	    }
+#if !defined(USE_DEV_IO) && !defined(USE_I386_IOPL)
+	    if (ioctl(xf86Info.consoleFd, KDENABIO, 0) < 0)
+	    {
+	        FatalError("xf86OpenConsole: KDENABIO failed (%s)",
+		           strerror(errno));
+	    }
+#endif
+	    if (ioctl(xf86Info.consoleFd, KDSETMODE, KD_GRAPHICS) < 0)
+	    {
+	        FatalError("xf86OpenConsole: KDSETMODE KD_GRAPHICS failed");
+	    }
+   	    break; 
+#endif /* SYSCONS_SUPPORT || PCVT_SUPPORT */
+#ifdef WSCONS_SUPPORT
+	case WSCONS:
+	    fprintf(stderr, "xf86OpenConsole\n");
+	    /* xf86Info.consoleFd = open("/dev/wskbd0", 0); */
+   	    break; 
+#endif
+        }
+    }
+    else 
+    {
+	/* serverGeneration != 1 */
+#if defined (SYSCONS_SUPPORT) || defined (PCVT_SUPPORT)
+    	if (xf86Info.consType == SYSCONS || xf86Info.consType == PCVT)
+    	{
+	    if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno) != 0)
+	    {
+	        xf86Msg(X_WARNING, "xf86OpenConsole: VT_ACTIVATE failed\n");
+	    }
+        }
+#endif /* SYSCONS_SUPPORT || PCVT_SUPPORT */
+    }
+    return;
+}
+
+
+#ifdef PCCONS_SUPPORT
+
+static int
+xf86OpenPccons()
+{
+    int fd = -1;
+
+    if ((fd = open(PCCONS_CONSOLE_DEV1, PCCONS_CONSOLE_MODE, 0))
+	>= 0 ||
+	(fd = open(PCCONS_CONSOLE_DEV2, PCCONS_CONSOLE_MODE, 0))
+	>= 0)
+    {
+	if (ioctl(fd, CONSOLE_X_MODE_OFF, 0) < 0)
+	{
+	    FatalError(
+		"%s: CONSOLE_X_MODE_OFF failed (%s)\n%s\n%s",
+		"xf86OpenPccons",
+		strerror(errno),
+		"Was expecting pccons driver with X support",
+		CHECK_DRIVER_MSG);
+	}
+	xf86Info.consType = PCCONS;
+	xf86Msg(X_PROBED, "Using pccons driver with X support\n");
+    }
+    return fd;
+}
+
+#endif /* PCCONS_SUPPORT */
+
+#ifdef SYSCONS_SUPPORT
+
+static int
+xf86OpenSyscons()
+{
+    int fd = -1;
+    vtmode_t vtmode;
+    char vtname[12];
+    struct stat status;
+    long syscons_version;
+    MessageType from;
+
+    /* Check for syscons */
+    if ((fd = open(SYSCONS_CONSOLE_DEV1, SYSCONS_CONSOLE_MODE, 0)) >= 0
+	|| (fd = open(SYSCONS_CONSOLE_DEV2, SYSCONS_CONSOLE_MODE, 0)) >= 0)
+    {
+	if (ioctl(fd, VT_GETMODE, &vtmode) >= 0)
+	{
+	    /* Get syscons version */
+	    if (ioctl(fd, CONS_GETVERS, &syscons_version) < 0)
+	    {
+		syscons_version = 0;
+	    }
+
+	    xf86Info.vtno = VTnum;
+	    from = X_CMDLINE;
+
+#ifdef VT_GETACTIVE
+	    if (ioctl(fd, VT_GETACTIVE, &initialVT) < 0)
+		initialVT = -1;
+#endif
+	    if (xf86Info.vtno == -1)
+	    {
+		/*
+		 * For old syscons versions (<0x100), VT_OPENQRY returns
+		 * the current VT rather than the next free VT.  In this
+		 * case, the server gets started on the current VT instead
+		 * of the next free VT.
+		 */
+
+#if 0
+		/* check for the fixed VT_OPENQRY */
+		if (syscons_version >= 0x100)
+		{
+#endif
+		    if (ioctl(fd, VT_OPENQRY, &xf86Info.vtno) < 0)
+		    {
+			/* No free VTs */
+			xf86Info.vtno = -1;
+		    }
+#if 0
+		}
+#endif
+
+		if (xf86Info.vtno == -1)
+		{
+		    /*
+		     * All VTs are in use.  If initialVT was found, use it.
+		     * Otherwise, if stdin is a VT, use that one.
+		     * XXX stdin is already closed, so this won't work.
+		     */
+		    if (initialVT != -1)
+		    {
+			xf86Info.vtno = initialVT;
+		    }
+		    else if ((fstat(0, &status) >= 0)
+			     && S_ISCHR(status.st_mode)
+			     && (ioctl(0, VT_GETMODE, &vtmode) >= 0))
+		    {
+			/* stdin is a VT */
+			xf86Info.vtno = minor(status.st_rdev) + 1;
+		    }
+		    else
+		    {
+			if (syscons_version >= 0x100)
+			{
+			    FatalError("%s: Cannot find a free VT",
+				       "xf86OpenSyscons");
+			}
+			/* Should no longer reach here */
+			FatalError("%s: %s %s\n\t%s %s",
+				   "xf86OpenSyscons",
+				   "syscons versions prior to 1.0 require",
+				   "either the",
+				   "server's stdin be a VT",
+				   "or the use of the vtxx server option");
+		    }
+		}
+		from = X_PROBED;
+	    }
+
+	    close(fd);
+#ifndef __OpenBSD__
+	    sprintf(vtname, "/dev/ttyv%01x", xf86Info.vtno - 1);
+#else 
+	    sprintf(vtname, "/dev/ttyC%01x", xf86Info.vtno - 1);
+#endif	    
+	    if ((fd = open(vtname, SYSCONS_CONSOLE_MODE, 0)) < 0)
+	    {
+		FatalError("xf86OpenSyscons: Cannot open %s (%s)",
+			   vtname, strerror(errno));
+	    }
+	    if (ioctl(fd, VT_GETMODE, &vtmode) < 0)
+	    {
+		FatalError("xf86OpenSyscons: VT_GETMODE failed");
+	    }
+	    xf86Info.consType = SYSCONS;
+	    xf86Msg(X_PROBED, "Using syscons driver with X support");
+	    if (syscons_version >= 0x100)
+	    {
+		xf86ErrorF(" (version %ld.%ld)\n", syscons_version >> 8,
+			   syscons_version & 0xFF);
+	    }
+	    else
+	    {
+		xf86ErrorF(" (version 0.x)\n");
+	    }
+	    xf86Msg(from, "using VT number %d\n\n", xf86Info.vtno);
+	}
+	else
+	{
+	    /* VT_GETMODE failed, probably not syscons */
+	    close(fd);
+	    fd = -1;
+	}
+    }
+    return fd;
+}
+
+#endif /* SYSCONS_SUPPORT */
+
+
+#ifdef PCVT_SUPPORT
+
+static int
+xf86OpenPcvt()
+{
+    /* This looks much like syscons, since pcvt is API compatible */
+    int fd = -1;
+    vtmode_t vtmode;
+    char vtname[12], *vtprefix;
+    struct stat status;
+    struct pcvtid pcvt_version;
+
+#ifndef __OpenBSD__
+    vtprefix = "/dev/ttyv";
+#else
+    vtprefix = "/dev/ttyC";
+#endif
+
+    fd = open(PCVT_CONSOLE_DEV, PCVT_CONSOLE_MODE, 0);
+#ifdef WSCONS_PCVT_COMPAT_CONSOLE_DEV
+    if (fd < 0)
+    {
+	fd = open(WSCONS_PCVT_COMPAT_CONSOLE_DEV, PCVT_CONSOLE_MODE, 0);
+	vtprefix = "/dev/ttyE";
+    }
+#endif
+    if (fd >= 0) 
+    {
+	if (ioctl(fd, VGAPCVTID, &pcvt_version) >= 0)
+	{
+	    if(ioctl(fd, VT_GETMODE, &vtmode) < 0)
+	    {
+		FatalError("%s: VT_GETMODE failed\n%s%s\n%s",
+			   "xf86OpenPcvt",
+			   "Found pcvt driver but X11 seems to be",
+			   " not supported.", CHECK_DRIVER_MSG);
+	    }
+
+	    xf86Info.vtno = VTnum;
+		
+	    if (ioctl(fd, VT_GETACTIVE, &initialVT) < 0)
+		initialVT = -1;
+
+	    if (xf86Info.vtno == -1)
+	    {
+		if (ioctl(fd, VT_OPENQRY, &xf86Info.vtno) < 0)
+		{
+		    /* No free VTs */
+		    xf86Info.vtno = -1;
+		}
+
+		if (xf86Info.vtno == -1)
+		{
+		    /*
+		     * All VTs are in use.  If initialVT was found, use it.
+		     * Otherwise, if stdin is a VT, use that one.
+		     * XXX stdin is already closed, so this won't work.
+		     */
+		    if (initialVT != -1)
+		    {
+			xf86Info.vtno = initialVT;
+		    }
+		    else if ((fstat(0, &status) >= 0)
+			     && S_ISCHR(status.st_mode)
+			     && (ioctl(0, VT_GETMODE, &vtmode) >= 0))
+		    {
+			/* stdin is a VT */
+			xf86Info.vtno = minor(status.st_rdev) + 1;
+		    }
+		    else
+		    {
+			FatalError("%s: Cannot find a free VT",
+				   "xf86OpenPcvt");
+		    }
+		}
+	    }
+
+	    close(fd);
+            sprintf(vtname, "%s%01x", vtprefix, xf86Info.vtno - 1);
+	    if ((fd = open(vtname, PCVT_CONSOLE_MODE, 0)) < 0)
+	    {
+		FatalError("xf86OpenPcvt: Cannot open %s (%s)",
+			   vtname, strerror(errno));
+	    }
+	    if (ioctl(fd, VT_GETMODE, &vtmode) < 0)
+	    {
+		FatalError("xf86OpenPcvt: VT_GETMODE failed");
+	    }
+	    xf86Info.consType = PCVT;
+#ifdef WSCONS_SUPPORT
+	    xf86Msg(X_PROBED,
+		    "Using wscons driver in pcvt compatibility mode "
+		    "(version %d.%d)\n",
+		    pcvt_version.rmajor, pcvt_version.rminor);
+#else
+	    xf86Msg(X_PROBED, "Using pcvt driver (version %d.%d)\n",
+		    pcvt_version.rmajor, pcvt_version.rminor);
+#endif
+	}
+	else
+	{
+	    /* Not pcvt */
+	    close(fd);
+	    fd = -1;
+	}
+    }
+    return fd;
+}
+
+#endif /* PCVT_SUPPORT */
+
+#ifdef WSCONS_SUPPORT
+
+static int
+xf86OpenWScons()
+{
+    int fd = -1;
+    int mode = WSDISPLAYIO_MODE_MAPPED;
+    int i;
+    char ttyname[16];
+
+    /* XXX Is this ok? */
+    for (i = 0; i < 8; i++) {
+#if defined(__NetBSD__)
+	sprintf(ttyname, "/dev/ttyE%d", i);
+#elif defined(__OpenBSD__)
+	sprintf(ttyname, "/dev/ttyC%d", i);
+#endif
+	if ((fd = open(ttyname, 2)) != -1)
+	    break;
+    }
+    if (fd != -1) {
+	if (ioctl(fd, WSDISPLAYIO_SMODE, &mode) < 0) {
+	    FatalError("%s: WSDISPLAYIO_MODE_MAPPED failed (%s)\n%s",
+		       "xf86OpenConsole", strerror(errno),
+		       CHECK_DRIVER_MSG);
+	}
+	xf86Info.consType = WSCONS;
+	xf86Msg(X_PROBED, "Using wscons driver\n");
+    }
+    return fd;
+}
+
+#endif /* WSCONS_SUPPORT */
+
+void
+xf86CloseConsole()
+{
+#if defined(SYSCONS_SUPPORT) || defined(PCVT_SUPPORT)
+    struct vt_mode   VT;
+#endif
+
+    switch (xf86Info.consType)
+    {
+#ifdef PCCONS_SUPPORT
+    case PCCONS:
+	ioctl (xf86Info.consoleFd, CONSOLE_X_MODE_OFF, 0);
+	break;
+#endif /* PCCONS_SUPPORT */
+#if defined (SYSCONS_SUPPORT) || defined (PCVT_SUPPORT)
+    case SYSCONS:
+    case PCVT:
+        ioctl(xf86Info.consoleFd, KDSETMODE, KD_TEXT);  /* Back to text mode */
+        if (ioctl(xf86Info.consoleFd, VT_GETMODE, &VT) != -1)
+        {
+	    VT.mode = VT_AUTO;
+	    ioctl(xf86Info.consoleFd, VT_SETMODE, &VT); /* dflt vt handling */
+        }
+#if !defined(USE_DEV_IO) && !defined(USE_I386_IOPL)
+        if (ioctl(xf86Info.consoleFd, KDDISABIO, 0) < 0)
+        {
+            xf86FatalError("xf86CloseConsole: KDDISABIO failed (%s)",
+	                   strerror(errno));
+        }
+#endif
+	if (initialVT != -1)
+		ioctl(xf86Info.consoleFd, VT_ACTIVATE, initialVT);
+        break;
+#endif /* SYSCONS_SUPPORT || PCVT_SUPPORT */
+#ifdef WSCONS_SUPPORT
+    case WSCONS:
+      {
+	int mode = WSDISPLAYIO_MODE_EMUL;
+	ioctl(xf86Info.screenFd, WSDISPLAYIO_SMODE, &mode);
+	break;
+      }
+#endif
+    }
+
+    if (xf86Info.screenFd != xf86Info.consoleFd)
+    {
+	close(xf86Info.screenFd);
+	close(xf86Info.consoleFd);
+	if ((xf86Info.consoleFd = open("/dev/console",O_RDONLY,0)) <0)
+	{
+	    xf86FatalError("xf86CloseConsole: Cannot open /dev/console (%s)",
+			   strerror(errno));
+	}
+    }
+    close(xf86Info.consoleFd);
+    if (devConsoleFd >= 0)
+	close(devConsoleFd);
+    return;
+}
+
+int
+xf86ProcessArgument(int argc, char *argv[], int i)
+{
+	/*
+	 * Keep server from detaching from controlling tty.  This is useful 
+	 * when debugging (so the server can receive keyboard signals.
+	 */
+	if (!strcmp(argv[i], "-keeptty"))
+	{
+		KeepTty = TRUE;
+		return(1);
+	}
+#if defined (SYSCONS_SUPPORT) || defined (PCVT_SUPPORT)
+	if ((argv[i][0] == 'v') && (argv[i][1] == 't'))
+	{
+		if (sscanf(argv[i], "vt%2d", &VTnum) == 0 ||
+		    VTnum < 1 || VTnum > 12)
+		{
+			UseMsg();
+			VTnum = -1;
+			return(0);
+		}
+		return(1);
+	}
+#endif /* SYSCONS_SUPPORT || PCVT_SUPPORT */
+	return(0);
+}
+
+void
+xf86UseMsg()
+{
+#if defined (SYSCONS_SUPPORT) || defined (PCVT_SUPPORT)
+	ErrorF("vtXX                   use the specified VT number (1-12)\n");
+#endif /* SYSCONS_SUPPORT || PCVT_SUPPORT */
+	ErrorF("-keeptty               ");
+	ErrorF("don't detach controlling tty (for debugging only)\n");
+	return;
+}