2001-08-09 22:45:15 +02:00
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/*
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Copyright (c) 2001 by Juliusz Chroboczek
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Copyright (c) 1999 by Keith Packard
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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2003-07-07 21:13:03 +02:00
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/* $RCSId: xc/programs/Xserver/hw/kdrive/linux/ms.c,v 1.1 2001/08/09 20:45:15 dawes Exp $ */
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2001-08-09 22:45:15 +02:00
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2003-09-11 07:12:51 +02:00
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#ifdef HAVE_CONFIG_H
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2005-12-27 09:29:50 +01:00
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#include <kdrive-config.h>
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2003-09-11 07:12:51 +02:00
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#endif
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2001-08-09 22:45:15 +02:00
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#define NEED_EVENTS
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2003-09-11 05:23:13 +02:00
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#include <errno.h>
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#include <termios.h>
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2003-09-11 02:47:36 +02:00
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#include <X11/X.h>
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#include <X11/Xproto.h>
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2003-09-11 05:23:13 +02:00
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#include <X11/Xpoll.h>
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2001-08-09 22:45:15 +02:00
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#include "inputstr.h"
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#include "scrnintstr.h"
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#include "kdrive.h"
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2003-11-02 20:56:10 +01:00
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static int
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2001-08-09 22:45:15 +02:00
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MsReadBytes (int fd, char *buf, int len, int min)
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{
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int n, tot;
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fd_set set;
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struct timeval tv;
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tot = 0;
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while (len)
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{
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n = read (fd, buf, len);
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if (n > 0)
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{
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tot += n;
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buf += n;
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len -= n;
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}
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if (tot % min == 0)
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break;
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FD_ZERO (&set);
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FD_SET (fd, &set);
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tv.tv_sec = 0;
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tv.tv_usec = 100 * 1000;
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n = select (fd + 1, &set, 0, 0, &tv);
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if (n <= 0)
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break;
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}
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return tot;
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}
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2003-11-02 20:56:10 +01:00
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static void
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2001-10-12 08:33:12 +02:00
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MsRead (int port, void *closure)
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2001-08-09 22:45:15 +02:00
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{
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unsigned char buf[3 * 200];
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unsigned char *b;
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int n;
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int dx, dy;
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unsigned long flags;
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while ((n = MsReadBytes (port, buf, sizeof (buf), 3)) > 0)
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{
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b = buf;
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while (n >= 3)
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{
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flags = KD_MOUSE_DELTA;
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if (b[0] & 0x20)
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flags |= KD_BUTTON_1;
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if (b[0] & 0x10)
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flags |= KD_BUTTON_3;
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dx = (char)(((b[0] & 0x03) << 6) | (b[1] & 0x3F));
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dy = (char)(((b[0] & 0x0C) << 4) | (b[2] & 0x3F));
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n -= 3;
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b += 3;
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2001-10-12 08:33:12 +02:00
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KdEnqueueMouseEvent (kdMouseInfo, flags, dx, dy);
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2001-08-09 22:45:15 +02:00
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}
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}
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}
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2001-10-12 08:33:12 +02:00
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int MsInputType;
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2003-11-02 20:56:10 +01:00
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static int
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2001-08-09 22:45:15 +02:00
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MsInit (void)
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{
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int port;
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char *device = "/dev/mouse";
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struct termios t;
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int ret;
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2001-10-12 08:33:12 +02:00
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if (!MsInputType)
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MsInputType = KdAllocInputType ();
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2001-08-09 22:45:15 +02:00
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port = open (device, O_RDWR | O_NONBLOCK);
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if(port < 0) {
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ErrorF("Couldn't open %s (%d)\n", device, (int)errno);
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return 0;
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} else if (port == 0) {
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ErrorF("Opening %s returned 0! Please complain to Keith.\n",
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device);
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2001-10-12 08:33:12 +02:00
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goto bail;
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2001-08-09 22:45:15 +02:00
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}
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if(!isatty(port)) {
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ErrorF("%s is not a tty\n", device);
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goto bail;
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}
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ret = tcgetattr(port, &t);
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if(ret < 0) {
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ErrorF("Couldn't tcgetattr(%s): %d\n", device, errno);
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goto bail;
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}
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t.c_iflag &= ~ (IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR |
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IGNCR | ICRNL | IXON | IXOFF);
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t.c_oflag &= ~ OPOST;
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t.c_lflag &= ~ (ECHO | ECHONL | ICANON | ISIG | IEXTEN);
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t.c_cflag &= ~ (CSIZE | PARENB);
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t.c_cflag |= CS8 | CLOCAL | CSTOPB;
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cfsetispeed (&t, B1200);
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cfsetospeed (&t, B1200);
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t.c_cc[VMIN] = 1;
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t.c_cc[VTIME] = 0;
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ret = tcsetattr(port, TCSANOW, &t);
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if(ret < 0) {
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ErrorF("Couldn't tcsetattr(%s): %d\n", device, errno);
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goto bail;
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}
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2001-10-12 08:33:12 +02:00
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if (KdRegisterFd (MsInputType, port, MsRead, (void *) 0))
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return 1;
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2001-08-09 22:45:15 +02:00
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bail:
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close(port);
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return 0;
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}
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2003-11-02 20:56:10 +01:00
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static void
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2001-10-12 08:33:12 +02:00
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MsFini (void)
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2001-08-09 22:45:15 +02:00
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{
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2001-10-12 08:33:12 +02:00
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KdUnregisterFds (MsInputType, TRUE);
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2001-08-09 22:45:15 +02:00
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}
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KdMouseFuncs MsMouseFuncs = {
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MsInit,
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MsFini
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};
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