diff options
Diffstat (limited to 'nx-X11/programs/Xserver/hw/xfree86/os-support/sysv/xqueue.c')
-rw-r--r-- | nx-X11/programs/Xserver/hw/xfree86/os-support/sysv/xqueue.c | 543 |
1 files changed, 0 insertions, 543 deletions
diff --git a/nx-X11/programs/Xserver/hw/xfree86/os-support/sysv/xqueue.c b/nx-X11/programs/Xserver/hw/xfree86/os-support/sysv/xqueue.c deleted file mode 100644 index 6c2132cef..000000000 --- a/nx-X11/programs/Xserver/hw/xfree86/os-support/sysv/xqueue.c +++ /dev/null @@ -1,543 +0,0 @@ -/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/sysv/xqueue.c,v 3.19 2000/02/10 22:33:45 dawes Exp $ */ -/* - * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany - * Copyright 1993-1999 by The XFree86 Project, 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 the copyright holders not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. The copyright holders make no - * representations about the suitability of this software for any purpose. - * It is provided "as is" without express or implied warranty. - * - * THE COPYRIGHT HOLDERS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL THE COPYRIGHT HOLDERS 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: xqueue.c /main/8 1996/10/19 18:08:11 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 "xf86Xinput.h" -#include "xf86OSmouse.h" -#include "xqueue.h" - -#ifdef XQUEUE - -static xqEventQueue *XqueQaddr; -static int xqueFd = -1; -#ifndef XQUEUE_ASYNC -static int xquePipe[2]; -#endif - -#ifdef XKB -#include "inputstr.h" -#include <X11/extensions/XKB.h> -#include <X11/extensions/XKBstr.h> -#include <X11/extensions/XKBsrv.h> -extern Bool noXkbExtension; -#endif - -#include "xf86Xinput.h" -#include "mipointer.h" - -typedef struct { - int xquePending; - int xqueSema; -} XqInfoRec, *XqInfoPtr; - -InputInfoPtr XqMouse = NULL; -InputInfoPtr XqKeyboard = NULL; - -#ifndef XQUEUE_ASYNC -/* - * xf86XqueSignal -- - * Trap the signal from xqueue and let it be known that events are - * ready for collection - */ - -static void -xf86XqueSignal(int signum) -{ - ((XqInfoPtr)(((MouseDevPtr)(XqMouse->private))->mousePriv))->xquePending = 1; - /* - * This is a hack, but it is the only reliable way I can find of letting - * the main select() loop know that there is more input waiting. Receiving - * a signal will interrupt select(), but there is no way I can find of - * dealing with events that come in between the end of processing the - * last set and when select() gets called. - * - * Suggestions for better ways of dealing with this without going back to - * asynchronous event processing are welcome. - */ -#ifdef DEBUG - ErrorF("xf86XqueSignal\n"); -#endif - write(xquePipe[1], "X", 1); - signal(SIGUSR2, xf86XqueSignal); -} -#endif - - -/* - * xf86XqueKbdProc -- - * Handle the initialization, etc. of a keyboard. - */ - -int -xf86XqueKbdProc(DeviceIntPtr pKeyboard, int what) -{ - KeySymsRec keySyms; - CARD8 modMap[MAP_LENGTH]; - - switch (what) { - - case DEVICE_INIT: - - xf86KbdGetMapping(&keySyms, modMap); - - /* - * Get also the initial led settings - */ - ioctl(xf86Info.consoleFd, KDGETLED, &xf86Info.leds); - - /* - * Perform final initialization of the system private keyboard - * structure and fill in various slots in the device record - * itself which couldn't be filled in before. - */ - pKeyboard->public.on = FALSE; - -#ifdef XKB - if (noXkbExtension) { -#endif - InitKeyboardDeviceStruct((DevicePtr)xf86Info.pKeyboard, - &keySyms, - modMap, - xf86KbdBell, - (KbdCtrlProcPtr)xf86KbdCtrl); -#ifdef XKB - } else { - XkbComponentNamesRec names; - if (XkbInitialMap) { - if ((xf86Info.xkbkeymap = strchr(XkbInitialMap, '/')) != NULL) - xf86Info.xkbkeymap++; - else - xf86Info.xkbkeymap = XkbInitialMap; - } - if (xf86Info.xkbkeymap) { - names.keymap = xf86Info.xkbkeymap; - names.keycodes = NULL; - names.types = NULL; - names.compat = NULL; - names.symbols = NULL; - names.geometry = NULL; - } else { - names.keymap = NULL; - names.keycodes = xf86Info.xkbkeycodes; - names.types = xf86Info.xkbtypes; - names.compat = xf86Info.xkbcompat; - names.symbols = xf86Info.xkbsymbols; - names.geometry = xf86Info.xkbgeometry; - } - if ((xf86Info.xkbkeymap || xf86Info.xkbcomponents_specified) - && (xf86Info.xkbmodel == NULL || xf86Info.xkblayout == NULL)) { - xf86Info.xkbrules = NULL; - } - XkbSetRulesDflts(xf86Info.xkbrules, xf86Info.xkbmodel, - xf86Info.xkblayout, xf86Info.xkbvariant, - xf86Info.xkboptions); - XkbInitKeyboardDeviceStruct(pKeyboard, - &names, - &keySyms, - modMap, - xf86KbdBell, - (KbdCtrlProcPtr)xf86KbdCtrl); - } -#endif - - xf86InitKBD(TRUE); - break; - - case DEVICE_ON: - pKeyboard->public.on = TRUE; - xf86InitKBD(FALSE); - break; - - case DEVICE_CLOSE: - case DEVICE_OFF: - pKeyboard->public.on = FALSE; - break; - } - - return (Success); -} - - -/* - * xf86XqueEvents -- - * Get some events from our queue. Nothing to do here ... - */ - -void -xf86XqueEvents() -{ -} - - -#ifdef XQUEUE_ASYNC -static void XqDoInput(int signum); -#endif - -void -XqReadInput(InputInfoPtr pInfo) -{ - MouseDevPtr pMse; - XqInfoPtr pXq; - xqEvent *XqueEvents; - int XqueHead; - char buf[100]; - signed char dx, dy; - - if (xqueFd < 0) - return; - - pMse = pInfo->private; - pXq = pMse->mousePriv; - - XqueEvents = XqueQaddr->xq_events; - XqueHead = XqueQaddr->xq_head; - - while (XqueHead != XqueQaddr->xq_tail) { - switch (XqueEvents[XqueHead].xq_type) { - case XQ_BUTTON: - pMse->PostEvent(pInfo, ~(XqueEvents[XqueHead].xq_code) & 0x07, - 0, 0, 0, 0); -#ifdef DEBUG - ErrorF("xqueue: buttons: %d\n", ~(XqueEvents[XqueHead].xq_code) & 0x07); -#endif - break; - - case XQ_MOTION: - dx = (signed char)XqueEvents[XqueHead].xq_x; - dy = (signed char)XqueEvents[XqueHead].xq_y; - pMse->PostEvent(pInfo, ~(XqueEvents[XqueHead].xq_code) & 0x07, - (int)dx, (int)dy, 0, 0); -#ifdef DEBUG - ErrorF("xqueue: Motion: (%d, %d) (buttons: %d)\n", dx, dy, ~(XqueEvents[XqueHead].xq_code) & 0x07); -#endif - break; - - case XQ_KEY: - /* XXX Need to deal with the keyboard part nicely. */ -#ifdef DEBUG - ErrorF("xqueue: key: %d\n", XqueEvents[XqueHead].xq_code); -#endif - xf86PostKbdEvent(XqueEvents[XqueHead].xq_code); - break; - default: - xf86Msg(X_WARNING, "Unknown Xque Event: 0x%02x\n", - XqueEvents[XqueHead].xq_type); - } - - if ((++XqueHead) == XqueQaddr->xq_size) XqueHead = 0; - xf86Info.inputPending = TRUE; - } - - /* reenable the signal-processing */ -#ifdef XQUEUE_ASYNC - signal(SIGUSR2, XqDoInput); -#endif - -#ifndef XQUEUE_ASYNC - { - int rval; - - while ((rval = read(xquePipe[0], buf, sizeof(buf))) > 0) -#ifdef DEBUG - ErrorF("Read %d bytes from xquePipe[0]\n", rval); -#else - ; -#endif - } -#endif - -#ifdef DEBUG - ErrorF("Leaving XqReadInput()\n"); -#endif - pXq->xquePending = 0; - XqueQaddr->xq_head = XqueQaddr->xq_tail; - XqueQaddr->xq_sigenable = 1; /* UNLOCK */ -} - -#ifdef XQUEUE_ASYNC -static void -XqDoInput(int signum) -{ - if (XqMouse) - XqReadInput(XqMouse); -} -#endif - -static void -XqBlock(pointer blockData, OSTimePtr pTimeout, pointer pReadmask) -{ - InputInfoPtr pInfo; - MouseDevPtr pMse; - XqInfoPtr pXq; - /* - * On MP SVR4 boxes, a race condition exists because the XQUEUE does - * not have anyway to lock it for exclusive access. This results in one - * processor putting something on the queue at the same time the other - * processor is taking it something off. The count of items in the queue - * can get off by 1. This just goes and checks to see if an extra event - * was put in the queue a during this period. The signal for this event - * was ignored while processing the previous event. - */ - - pInfo = blockData; - pMse = pInfo->private; - pXq = pMse-> mousePriv; - if (!pXq->xquePending) { -#ifdef DEBUG - ErrorF("XqBlock: calling XqReadInput()\n"); -#endif - XqReadInput((InputInfoPtr)blockData); - } else { -#ifdef DEBUG - ErrorF("XqBlock: not calling XqReadInput()\n"); -#endif - ; - } - /* - * Make sure that any events that come in here are passed on without. - * waiting for the next wakeup. - */ - if (xf86Info.inputPending) { -#ifdef DEBUG - ErrorF("XqBlock: calling ProcessInputEvents()\n"); -#endif - ProcessInputEvents(); - } else { -#ifdef DEBUG - ErrorF("XqBlock: not calling ProcessInputEvents()\n"); -#endif - ; - } -} - -/* - * XqEnable -- - * Enable the handling of the Xque - */ - -static int -XqEnable(InputInfoPtr pInfo) -{ - MouseDevPtr pMse; - XqInfoPtr pXq; - static struct kd_quemode xqueMode; - static Bool was_here = FALSE; - - pMse = pInfo->private; - pXq = pMse->mousePriv; - - if (xqueFd < 0) { - if ((xqueFd = open("/dev/mouse", O_RDONLY | O_NDELAY)) < 0) { - if (xf86GetAllowMouseOpenFail()) { - xf86Msg(X_WARNING, - "%s: Cannot open /dev/mouse (%s) - Continuing...\n", - pInfo->name, strerror(errno)); - return Success; - } else { - xf86Msg(X_ERROR, "%s: Cannot open /dev/mouse (%s)\n", - pInfo->name, strerror(errno)); - return !Success; - } - } - } -#ifndef XQUEUE_ASYNC - if (!was_here) { - pipe(xquePipe); - fcntl(xquePipe[0], F_SETFL, fcntl(xquePipe[0], F_GETFL, 0) | O_NDELAY); - fcntl(xquePipe[1], F_SETFL, fcntl(xquePipe[1], F_GETFL, 0) | O_NDELAY); - was_here = TRUE; - } -#endif - - if (pXq->xqueSema++ == 0) { -#ifdef XQUEUE_ASYNC - (void) signal(SIGUSR2, XqDoInput); -#else - (void) signal(SIGUSR2, xf86XqueSignal); -#endif - xqueMode.qsize = 64; /* max events */ - xqueMode.signo = SIGUSR2; - ioctl(xf86Info.consoleFd, KDQUEMODE, NULL); - - if (ioctl(xf86Info.consoleFd, KDQUEMODE, &xqueMode) < 0) { - xf86Msg(X_ERROR, "%s: Cannot set KDQUEMODE", pInfo->name); - return !Success; - } - XqueQaddr = (xqEventQueue *)xqueMode.qaddr; - XqueQaddr->xq_sigenable = 1; /* UNLOCK */ - } - - return Success; -} - - - -/* - * xf86XqueDisable -- - * disable the handling of the Xque - */ - -static int -XqDisable(InputInfoPtr pInfo) -{ - MouseDevPtr pMse; - XqInfoPtr pXq; - - pMse = pInfo->private; - pXq = pMse->mousePriv; - - if (pXq->xqueSema-- == 1) - { - XqueQaddr->xq_sigenable = 0; /* LOCK */ - - if (ioctl(xf86Info.consoleFd, KDQUEMODE, NULL) < 0) { - xf86Msg(X_ERROR, "%s: Cannot unset KDQUEMODE", pInfo->name); - return !Success; - } - } - - if (xqueFd >= 0) { - close(xqueFd); - xqueFd = -1; - } - - return Success; -} - -/* - * XqMouseProc -- - * Handle the initialization, etc. of a mouse - */ - -static int -XqMouseProc(DeviceIntPtr pPointer, int what) -{ - InputInfoPtr pInfo; - MouseDevPtr pMse; - unchar map[4]; - int ret; - - pInfo = pPointer->public.devicePrivate; - pMse = pInfo->private; - pMse->device = pPointer; - - switch (what) { - case DEVICE_INIT: - pPointer->public.on = FALSE; - - map[1] = 1; - map[2] = 2; - map[3] = 3; - - InitPointerDeviceStruct((DevicePtr)pPointer, - map, - 3, - miPointerGetMotionEvents, - pMse->Ctrl, - miPointerGetMotionBufferSize()); - /* X valuator */ - xf86InitValuatorAxisStruct(pPointer, 0, 0, -1, 1, 0, 1); - xf86InitValuatorDefaults(pPointer, 0); - /* Y valuator */ - xf86InitValuatorAxisStruct(pPointer, 1, 0, -1, 1, 0, 1); - xf86InitValuatorDefaults(pPointer, 1); - xf86MotionHistoryAllocate(pInfo); - RegisterBlockAndWakeupHandlers(XqBlock, (WakeupHandlerProcPtr)NoopDDA, - pInfo); - break; - - case DEVICE_ON: - pMse->lastButtons = 0; - pMse->lastMappedButtons = 0; - pMse->emulateState = 0; - pPointer->public.on = TRUE; - ret = XqEnable(pInfo); -#ifndef XQUEUE_ASYNC - if (xquePipe[0] != -1) { - pInfo->fd = xquePipe[0]; - AddEnabledDevice(xquePipe[0]); - } -#endif - return ret; - - case DEVICE_CLOSE: - case DEVICE_OFF: - pPointer->public.on = FALSE; - ret = XqDisable(pInfo); -#ifndef XQUEUE_ASYNC - if (xquePipe[0] != -1) { - RemoveEnabledDevice(xquePipe[0]); - pInfo->fd = -1; - } -#endif - return ret; - } - return Success; -} - -Bool -XqueueMousePreInit(InputInfoPtr pInfo, const char *protocol, int flags) -{ - MouseDevPtr pMse; - XqInfoPtr pXq; - - pMse = pInfo->private; - pMse->protocol = protocol; - xf86Msg(X_CONFIG, "%s: Protocol: %s\n", pInfo->name, protocol); - pXq = pMse->mousePriv = xnfcalloc(sizeof(XqInfoRec), 1); - - /* Collect the options, and process the common options. */ - xf86CollectInputOptions(pInfo, NULL, NULL); - xf86ProcessCommonOptions(pInfo, pInfo->options); - - /* Process common mouse options (like Emulate3Buttons, etc). */ - pMse->CommonOptions(pInfo); - - /* Setup the local procs. */ - pInfo->device_control = XqMouseProc; -#ifdef XQUEUE_ASYNC - pInfo->read_input = NULL; -#else - pInfo->read_input = XqReadInput; -#endif - pInfo->fd = -1; - - XqMouse = pInfo; - - pInfo->flags |= XI86_CONFIGURED; - return TRUE; -} - -#endif /* XQUEUE */ |