diff options
Diffstat (limited to 'xorg-server/hw/dmx/input/lnx-ps2.c')
| -rw-r--r-- | xorg-server/hw/dmx/input/lnx-ps2.c | 578 |
1 files changed, 289 insertions, 289 deletions
diff --git a/xorg-server/hw/dmx/input/lnx-ps2.c b/xorg-server/hw/dmx/input/lnx-ps2.c index 70918eef4..f40441fe7 100644 --- a/xorg-server/hw/dmx/input/lnx-ps2.c +++ b/xorg-server/hw/dmx/input/lnx-ps2.c @@ -1,289 +1,289 @@ -/* Portions of this file were derived from the following files: - * - ********************************************************************** - * - * Xserver/hw/kdrive/linux/ps2.c - * - * Copyright (c) 1999 by 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. - * - */ - -/* - * Copyright 2001,2003 Red Hat Inc., Durham, North Carolina. - * - * All Rights Reserved. - * - * 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 on 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 (including the - * next paragraph) 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 - * NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS - * 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. - */ - -/* - * Authors: - * Rickard E. (Rik) Faith <faith@redhat.com> - * - */ - -/** \file - * - * This code implements a low-level device driver for a serial MS mouse. - * The code is derived from code by Keith Packard (see the source code - * for complete references). */ - -#ifdef HAVE_DMX_CONFIG_H -#include <dmx-config.h> -#endif - -#include "inputstr.h" -#include <X11/Xos.h> -#include <errno.h> -#include <termios.h> - -/*****************************************************************************/ -/* Define some macros to make it easier to move this file to another - * part of the Xserver tree. All calls to the dmx* layer are #defined - * here for the .c file. The .h file will also have to be edited. */ -#include "dmxinputinit.h" -#include "lnx-ps2.h" - -#define GETPRIV myPrivate *priv \ - = ((DMXLocalInputInfoPtr)(pDev->devicePrivate))->private - -#define LOG0(f) dmxLog(dmxDebug,f) -#define LOG1(f,a) dmxLog(dmxDebug,f,a) -#define LOG2(f,a,b) dmxLog(dmxDebug,f,a,b) -#define LOG3(f,a,b,c) dmxLog(dmxDebug,f,a,b,c) -#define FATAL0(f) dmxLog(dmxFatal,f) -#define FATAL1(f,a) dmxLog(dmxFatal,f,a) -#define FATAL2(f,a,b) dmxLog(dmxFatal,f,a,b) -#define MOTIONPROC dmxMotionProcPtr -#define ENQUEUEPROC dmxEnqueueProcPtr -#define CHECKPROC dmxCheckSpecialProcPtr -#define BLOCK DMXBlockType - -/* End of interface definitions. */ -/*****************************************************************************/ - -/* Private area for PS/2 devices. */ -typedef struct _myPrivate { - DeviceIntPtr pMouse; - int fd; - enum { - button1 = 0x0001, - button2 = 0x0002, - button3 = 0x0004, - button4 = 0x0008, - button5 = 0x0010 - } buttons; -} myPrivate; - -static int ps2LinuxReadBytes(int fd, unsigned 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; -} - -static void ps2LinuxButton(DevicePtr pDev, ENQUEUEPROC enqueue, - int buttons, BLOCK block) -{ - GETPRIV; - -#define PRESS(b) \ - do { \ - enqueue(pDev, ButtonPress, 0, 0, NULL, block); \ - } while (0) - -#define RELEASE(b) \ - do { \ - enqueue(pDev, ButtonRelease, 0, 0, NULL, block); \ - } while (0) - - if ((buttons & button1) && !(priv->buttons & button1)) PRESS(1); - if (!(buttons & button1) && (priv->buttons & button1)) RELEASE(1); - - if ((buttons & button2) && !(priv->buttons & button2)) PRESS(2); - if (!(buttons & button2) && (priv->buttons & button2)) RELEASE(2); - - if ((buttons & button3) && !(priv->buttons & button3)) PRESS(3); - if (!(buttons & button3) && (priv->buttons & button3)) RELEASE(3); - - if ((buttons & button4) && !(priv->buttons & button4)) PRESS(4); - if (!(buttons & button4) && (priv->buttons & button4)) RELEASE(4); - - if ((buttons & button5) && !(priv->buttons & button5)) PRESS(5); - if (!(buttons & button5) && (priv->buttons & button5)) RELEASE(5); - - priv->buttons = buttons; -} - -/** Read an event from the \a pDev device. If the event is a motion - * event, enqueue it with the \a motion function. Otherwise, check for - * special keys with the \a checkspecial function and enqueue the event - * with the \a enqueue function. The \a block type is passed to the - * functions so that they may block SIGIO handling as appropriate to the - * caller of this function. */ -void ps2LinuxRead(DevicePtr pDev, MOTIONPROC motion, - ENQUEUEPROC enqueue, CHECKPROC checkspecial, BLOCK block) -{ - GETPRIV; - unsigned char buf[3 * 200]; /* RATS: Use ok */ - unsigned char *b; - int n; - int dx, dy, v[2]; - - while ((n = ps2LinuxReadBytes(priv->fd, buf, sizeof(buf), 3)) > 0) { - b = buf; - while (n >= 3) { - dx = b[1] - ((b[0] & 0x10) ? 256 : 0); - dy = -b[2] + ((b[0] & 0x20) ? 256 : 0); - v[0] = -dx; - v[1] = -dy; - - motion(pDev, v, 0, 2, 1, block); - ps2LinuxButton(pDev, enqueue, (((b[0] & 4) ? button2 : 0) - | ((b[0] & 2) ? button3 : 0) - | ((b[0] & 1) ? button1 : 0)), - block); - n -= 3; - b += 3; - } - } -} - -/** Initialize \a pDev. */ -void ps2LinuxInit(DevicePtr pDev) -{ - GETPRIV; - const char *names[] = { "/dev/mouse", "/dev/psaux", NULL }; - int i; - - if (priv->fd >=0) return; - - for (i = 0; names[i]; i++) { - if ((priv->fd = open(names[i], O_RDWR | O_NONBLOCK, 0)) >= 0) break; - } - if (priv->fd < 0) - FATAL1("ps2LinuxInit: Cannot open mouse port (%s)\n", - strerror(errno)); -} - -/** Turn \a pDev on (i.e., take input from \a pDev). */ -int ps2LinuxOn(DevicePtr pDev) -{ - GETPRIV; - - if (priv->fd < 0) ps2LinuxInit(pDev); - return priv->fd; -} - -/** Turn \a pDev off (i.e., stop taking input from \a pDev). */ -void ps2LinuxOff(DevicePtr pDev) -{ - GETPRIV; - - close(priv->fd); - priv->fd = -1; -} - -static void ps2LinuxGetMap(DevicePtr pDev, unsigned char *map, int *nButtons) -{ - int i; - - if (nButtons) *nButtons = 3; - if (map) for (i = 0; i <= *nButtons; i++) map[i] = i; -} - -/** Currently unused hook called prior to an VT switch. */ -void ps2LinuxVTPreSwitch(pointer p) -{ -} - -/** Currently unused hook called after returning from a VT switch. */ -void ps2LinuxVTPostSwitch(pointer p) -{ -} - -/** Create a private structure for use within this file. */ -pointer ps2LinuxCreatePrivate(DeviceIntPtr pMouse) -{ - myPrivate *priv = calloc(1, sizeof(*priv)); - priv->fd = -1; - priv->pMouse = pMouse; - return priv; -} - -/** Destroy a private structure. */ -void ps2LinuxDestroyPrivate(pointer priv) -{ - if (priv) free(priv); -} - -/** Fill the \a info structure with information needed to initialize \a - * pDev. */ -void ps2LinuxGetInfo(DevicePtr pDev, DMXLocalInitInfoPtr info) -{ - info->buttonClass = 1; - ps2LinuxGetMap(pDev, info->map, &info->numButtons); - info->valuatorClass = 1; - info->numRelAxes = 2; - info->minval[0] = 0; - info->maxval[0] = 0; - info->res[0] = 1; - info->minres[0] = 0; - info->maxres[0] = 1; - info->ptrFeedbackClass = 1; -} +/* Portions of this file were derived from the following files:
+ *
+ **********************************************************************
+ *
+ * Xserver/hw/kdrive/linux/ps2.c
+ *
+ * Copyright (c) 1999 by 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.
+ *
+ */
+
+/*
+ * Copyright 2001,2003 Red Hat Inc., Durham, North Carolina.
+ *
+ * All Rights Reserved.
+ *
+ * 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 on 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 (including the
+ * next paragraph) 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
+ * NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
+ * 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.
+ */
+
+/*
+ * Authors:
+ * Rickard E. (Rik) Faith <faith@redhat.com>
+ *
+ */
+
+/** \file
+ *
+ * This code implements a low-level device driver for a serial MS mouse.
+ * The code is derived from code by Keith Packard (see the source code
+ * for complete references). */
+
+#ifdef HAVE_DMX_CONFIG_H
+#include <dmx-config.h>
+#endif
+
+#include "inputstr.h"
+#include <X11/Xos.h>
+#include <errno.h>
+#include <termios.h>
+
+/*****************************************************************************/
+/* Define some macros to make it easier to move this file to another
+ * part of the Xserver tree. All calls to the dmx* layer are #defined
+ * here for the .c file. The .h file will also have to be edited. */
+#include "dmxinputinit.h"
+#include "lnx-ps2.h"
+
+#define GETPRIV myPrivate *priv \
+ = ((DMXLocalInputInfoPtr)(pDev->devicePrivate))->private
+
+#define LOG0(f) dmxLog(dmxDebug,f)
+#define LOG1(f,a) dmxLog(dmxDebug,f,a)
+#define LOG2(f,a,b) dmxLog(dmxDebug,f,a,b)
+#define LOG3(f,a,b,c) dmxLog(dmxDebug,f,a,b,c)
+#define FATAL0(f) dmxLog(dmxFatal,f)
+#define FATAL1(f,a) dmxLog(dmxFatal,f,a)
+#define FATAL2(f,a,b) dmxLog(dmxFatal,f,a,b)
+#define MOTIONPROC dmxMotionProcPtr
+#define ENQUEUEPROC dmxEnqueueProcPtr
+#define CHECKPROC dmxCheckSpecialProcPtr
+#define BLOCK DMXBlockType
+
+/* End of interface definitions. */
+/*****************************************************************************/
+
+/* Private area for PS/2 devices. */
+typedef struct _myPrivate {
+ DeviceIntPtr pMouse;
+ int fd;
+ enum {
+ button1 = 0x0001,
+ button2 = 0x0002,
+ button3 = 0x0004,
+ button4 = 0x0008,
+ button5 = 0x0010
+ } buttons;
+} myPrivate;
+
+static int ps2LinuxReadBytes(int fd, unsigned 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;
+}
+
+static void ps2LinuxButton(DevicePtr pDev, ENQUEUEPROC enqueue,
+ int buttons, BLOCK block)
+{
+ GETPRIV;
+
+#define PRESS(b) \
+ do { \
+ enqueue(pDev, ButtonPress, 0, 0, NULL, block); \
+ } while (0)
+
+#define RELEASE(b) \
+ do { \
+ enqueue(pDev, ButtonRelease, 0, 0, NULL, block); \
+ } while (0)
+
+ if ((buttons & button1) && !(priv->buttons & button1)) PRESS(1);
+ if (!(buttons & button1) && (priv->buttons & button1)) RELEASE(1);
+
+ if ((buttons & button2) && !(priv->buttons & button2)) PRESS(2);
+ if (!(buttons & button2) && (priv->buttons & button2)) RELEASE(2);
+
+ if ((buttons & button3) && !(priv->buttons & button3)) PRESS(3);
+ if (!(buttons & button3) && (priv->buttons & button3)) RELEASE(3);
+
+ if ((buttons & button4) && !(priv->buttons & button4)) PRESS(4);
+ if (!(buttons & button4) && (priv->buttons & button4)) RELEASE(4);
+
+ if ((buttons & button5) && !(priv->buttons & button5)) PRESS(5);
+ if (!(buttons & button5) && (priv->buttons & button5)) RELEASE(5);
+
+ priv->buttons = buttons;
+}
+
+/** Read an event from the \a pDev device. If the event is a motion
+ * event, enqueue it with the \a motion function. Otherwise, check for
+ * special keys with the \a checkspecial function and enqueue the event
+ * with the \a enqueue function. The \a block type is passed to the
+ * functions so that they may block SIGIO handling as appropriate to the
+ * caller of this function. */
+void ps2LinuxRead(DevicePtr pDev, MOTIONPROC motion,
+ ENQUEUEPROC enqueue, CHECKPROC checkspecial, BLOCK block)
+{
+ GETPRIV;
+ unsigned char buf[3 * 200]; /* RATS: Use ok */
+ unsigned char *b;
+ int n;
+ int dx, dy, v[2];
+
+ while ((n = ps2LinuxReadBytes(priv->fd, buf, sizeof(buf), 3)) > 0) {
+ b = buf;
+ while (n >= 3) {
+ dx = b[1] - ((b[0] & 0x10) ? 256 : 0);
+ dy = -b[2] + ((b[0] & 0x20) ? 256 : 0);
+ v[0] = -dx;
+ v[1] = -dy;
+
+ motion(pDev, v, 0, 2, 1, block);
+ ps2LinuxButton(pDev, enqueue, (((b[0] & 4) ? button2 : 0)
+ | ((b[0] & 2) ? button3 : 0)
+ | ((b[0] & 1) ? button1 : 0)),
+ block);
+ n -= 3;
+ b += 3;
+ }
+ }
+}
+
+/** Initialize \a pDev. */
+void ps2LinuxInit(DevicePtr pDev)
+{
+ GETPRIV;
+ const char *names[] = { "/dev/mouse", "/dev/psaux", NULL };
+ int i;
+
+ if (priv->fd >=0) return;
+
+ for (i = 0; names[i]; i++) {
+ if ((priv->fd = open(names[i], O_RDWR | O_NONBLOCK, 0)) >= 0) break;
+ }
+ if (priv->fd < 0)
+ FATAL1("ps2LinuxInit: Cannot open mouse port (%s)\n",
+ strerror(errno));
+}
+
+/** Turn \a pDev on (i.e., take input from \a pDev). */
+int ps2LinuxOn(DevicePtr pDev)
+{
+ GETPRIV;
+
+ if (priv->fd < 0) ps2LinuxInit(pDev);
+ return priv->fd;
+}
+
+/** Turn \a pDev off (i.e., stop taking input from \a pDev). */
+void ps2LinuxOff(DevicePtr pDev)
+{
+ GETPRIV;
+
+ close(priv->fd);
+ priv->fd = -1;
+}
+
+static void ps2LinuxGetMap(DevicePtr pDev, unsigned char *map, int *nButtons)
+{
+ int i;
+
+ if (nButtons) *nButtons = 3;
+ if (map) for (i = 0; i <= *nButtons; i++) map[i] = i;
+}
+
+/** Currently unused hook called prior to an VT switch. */
+void ps2LinuxVTPreSwitch(pointer p)
+{
+}
+
+/** Currently unused hook called after returning from a VT switch. */
+void ps2LinuxVTPostSwitch(pointer p)
+{
+}
+
+/** Create a private structure for use within this file. */
+pointer ps2LinuxCreatePrivate(DeviceIntPtr pMouse)
+{
+ myPrivate *priv = calloc(1, sizeof(*priv));
+ priv->fd = -1;
+ priv->pMouse = pMouse;
+ return priv;
+}
+
+/** Destroy a private structure. */
+void ps2LinuxDestroyPrivate(pointer priv)
+{
+ free(priv);
+}
+
+/** Fill the \a info structure with information needed to initialize \a
+ * pDev. */
+void ps2LinuxGetInfo(DevicePtr pDev, DMXLocalInitInfoPtr info)
+{
+ info->buttonClass = 1;
+ ps2LinuxGetMap(pDev, info->map, &info->numButtons);
+ info->valuatorClass = 1;
+ info->numRelAxes = 2;
+ info->minval[0] = 0;
+ info->maxval[0] = 0;
+ info->res[0] = 1;
+ info->minres[0] = 0;
+ info->maxres[0] = 1;
+ info->ptrFeedbackClass = 1;
+}
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