diff options
Diffstat (limited to 'nx-X11/programs/Xserver/hw/xfree86/os-support/sco/sco_init.c')
-rw-r--r-- | nx-X11/programs/Xserver/hw/xfree86/os-support/sco/sco_init.c | 296 |
1 files changed, 296 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/hw/xfree86/os-support/sco/sco_init.c b/nx-X11/programs/Xserver/hw/xfree86/os-support/sco/sco_init.c new file mode 100644 index 000000000..bc1f3b56d --- /dev/null +++ b/nx-X11/programs/Xserver/hw/xfree86/os-support/sco/sco_init.c @@ -0,0 +1,296 @@ +/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/sco/sco_init.c,v 3.13 2002/06/03 21:22:10 dawes Exp $ */ +/* + * Copyright 2001-2005 by J. Kean Johnston <jkj@sco.com> + * + * 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 J. Kean Johnston not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. J. Kean Johnston makes no + * representations about the suitability of this software for any purpose. + * It is provided "as is" without express or implied warranty. + * + * J. KEAN JOHNSTON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL J. KEAN JOHNSTON 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. + */ +/* $XConsortium$ */ + +/* Re-written May 2001 to represent the current state of reality */ + +#ifdef HAVE_XORG_CONFIG_H +#include <xorg-config.h> +#endif + +#include <X11/X.h> +#include <X11/Xmd.h> + +#include "compiler.h" + +#include "xf86.h" +#include "xf86Priv.h" +#include "xf86_OSlib.h" + +static Bool KeepTty = FALSE; +static int VTnum = -1; +static char vtdevice[48]; +static int sco_console_mode = -1; + +extern Bool mpxLock; + +void +xf86OpenConsole(void) +{ + int i, ioctl_ret; + struct vt_mode VT; + struct vid_info vidinf; + struct sigaction sigvtsw; + char *ttn; + + if (serverGeneration == 1) { + /* check if we're run with euid==0 */ + if (geteuid() != 0) { + FatalError("xf86OpenConsole: Server must be setuid root\n"); + } + + /* If we are run in the background we will get SIGTTOU. Ignore it. */ + OsSignal (SIGTTOU, SIG_IGN); + + /* + * Set up the virtual terminal (multiscreen in SCO parlance). + * For the actual console itself, screens are numbered from + * 1 to (usually) 16. However, it is possible to have a nested + * server, and it is also possible to be on a multi-console + * system such as MaxSpeed or SunRiver. Therefore, we should + * not make any assumptions about the TTY name we are on, and + * instead we rely on ttyname() to give us the real TTY name. + * Previously, we tried to determine the TTY name manually. + * This is wrong. The only time we need to futz with the TTY name + * is if we were given the name of a TTY to run on explicity on + * the command line. + */ + + if (VTnum == -1) { + /* + * No device was specified. We need to query the kernel to see which + * console device we are on (and in fact if we are on a console at all). + */ + ttn = ttyname (1); + + if (ttn == (char *)0) { + FatalError ("xf86OpenConsole: Could not determine TTY name: %s\n", + strerror(errno)); + } + strlcpy (vtdevice, ttn, sizeof(vtdevice)); + } else if (VTnum >= 0) { + snprintf (vtdevice, sizeof(vtdevice), "/dev/tty%02d", VTnum); + } + + /* + * Now we can dispose of stdin/stdout + */ + fclose (stdin); + fclose (stdout); + + if ((xf86Info.consoleFd = open(vtdevice, O_RDWR | O_NDELAY, 0)) < 0) { + FatalError("xf86OpenConsole: Cannot open %s: %s\n", vtdevice, + strerror(errno)); + } + + /* + * We make 100% sure we use the correct VT number. This can get ugly + * where there are multi-consoles in use, so we make sure we query + * the kernel for the correct VT number. It knows best, we don't. + */ + vidinf.size = sizeof(vidinf); + if (ioctl (xf86Info.consoleFd, CONS_GETINFO, &vidinf) < 0) { + FatalError ("xf86OpenConsole: %s not a console device " + "or error querying device: %s\n", vtdevice, strerror (errno)); + } + xf86Info.vtno = vidinf.m_num; + VTnum = vidinf.m_num + 1; /* 0-based */ + + ErrorF("(using VT%02d device %s)\n\n", VTnum, vtdevice); + + /* We activate the console just in case its not the one we are on */ + if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno) != 0) { + ErrorF("xf86OpenConsole: VT_ACTIVATE failed (%s)\n", strerror(errno)); + } + + /* Disassociate from controling TTY */ + if (!KeepTty) { + setpgrp(); + } + + /* + * Now we get the current mode that the console device is in. We will + * use this later when we close the console device to restore it to + * that same mode. + */ + if ((sco_console_mode = ioctl(xf86Info.consoleFd, CONS_GET, 0L)) < 0) { + FatalError("xf86OpenConsole: CONS_GET failed on console (%s)\n", + strerror(errno)); + } + + if (ioctl(xf86Info.consoleFd, VT_GETMODE, &VT) < 0) { + FatalError("xf86OpenConsole: VT_GETMODE failed (%s)\n", strerror(errno)); + } + + sigvtsw.sa_handler = xf86VTRequest; + sigfillset(&sigvtsw.sa_mask); + sigvtsw.sa_flags = 0; + + /* NOTE: Using sigaction means we dont have to re-arm the signal */ + sigaction(SIGUSR1, &sigvtsw, NULL); + + VT.mode = VT_PROCESS; + VT.relsig = SIGUSR1; + VT.acqsig = SIGUSR1; + VT.frsig = SIGINT; /* Not implemented */ + VT.waitv = 0; + + /* + * The SCO X server tries the following call 5 times. Lets do the same + * thing. It shouldn't really be required but sometimes things take a + * while to settle down when switching screens. *helpless shrug* I know + * its sucks but ... + */ + + ioctl_ret = 0; + for (i = 0; i < 5; i++) { + ioctl_ret = ioctl(xf86Info.consoleFd, VT_SETMODE, &VT); + if (ioctl_ret >= 0) + break; + usleep(999999); /* Dont use nap() - it forces linking with -lx */ + } + + if (ioctl_ret < 0) { + FatalError("xf86OpenConsole: VT_SETMODE failed (%s)\n", strerror(errno)); + } + + /* + * Convince the console driver we are in graphics mode. + */ + if (ioctl(xf86Info.consoleFd, KDSETMODE, KD_GRAPHICS) < 0) { + ErrorF("Failed to set graphics mode (%s)\n", strerror(errno)); + } + } else { /* serverGeneration != 1 */ + if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno) != 0) { + ErrorF("xf86OpenConsole: VT_ACTIVATE failed (%s)\n", strerror(errno)); + } + } +} + +/* + * Restore the console to its previous state. This may cause flicker if + * the screen was previous in a graphics mode, because we first set it + * to text mode. This has the advantage of getting the console driver + * to do a soft reset on the card, which really does help settle the + * video card down again after coming out of Xfree86. + */ +void +xf86CloseConsole(void) +{ + struct vt_mode VT; + struct sigaction sigvtsw; + + /* Set text mode (possibly briefly) */ + ioctl(xf86Info.consoleFd, KDSETMODE, KD_TEXT0); + + /* Restore the original mode */ + if (sco_console_mode != -1) { + ioctl(xf86Info.consoleFd, MODESWITCH | sco_console_mode, 0L); + } + + ioctl(xf86Info.consoleFd, VT_RELDISP, 1); /* Release the display */ + + sigvtsw.sa_handler = SIG_DFL; + sigfillset(&sigvtsw.sa_mask); + sigvtsw.sa_flags = 0; + + sigaction(SIGUSR1, &sigvtsw, NULL); + + VT.mode = VT_AUTO; + VT.waitv = 0; + VT.relsig = SIGUSR1; + VT.acqsig = SIGUSR1; + VT.frsig = SIGINT; + ioctl(xf86Info.consoleFd, VT_SETMODE, &VT); /* Revert to auto handling */ + + close(xf86Info.consoleFd); /* We're done with the device */ +} + +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); + } + + /* + * By default, the X server wants to bind itself to CPU 0. This makes + * sure that the server has full access to the I/O ports at IOPL 3. + * Some SMP systems have trouble with I/O on CPU's other than 0. If, + * however, you have a system that is well behaved, you can specify + * this argument and let the scheduler decide which CPU the server + * should run on. + */ + if (!strcmp(argv[i], "-nompxlock")) { + mpxLock = FALSE; + return (1); + } + + /* + * Specify the VT number to run on (NOT the device). + */ + if ((argv[i][0] == 'v') && (argv[i][1] == 't')) { + if (sscanf(argv[i], "vt%2d", &VTnum) == 0) { + UseMsg(); + VTnum = -1; + return(0); + } + if (VTnum <= 0) { + UseMsg(); + VTnum = -1; + return(0); + } + return(1); + } + + /* + * Use a device the user specifies. + */ + if (!strcmp(argv[i], "-crt")) { + if (++i > argc) { + UseMsg(); + VTnum = -1; + return(0); + } else { + VTnum = -2; + strlcpy (vtdevice, argv[i], sizeof(vtdevice)); + return(2); + } + } + return(0); +} + +void +xf86UseMsg(void) +{ + ErrorF("vtXX use the specified VT number\n"); + ErrorF("-crt DEVICE use the specified VT device\n"); + ErrorF("-nompxlock dont bind X server to CPU 0\n"); + ErrorF("-keeptty "); + ErrorF("don't detach controlling tty (for debugging only)\n"); +} |