1 /* $NetBSD: tp.c,v 1.1 2002/08/27 14:12:18 takemura Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 TAKEMRUA Shin 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of The NetBSD Foundation nor the names of its 16 * contributors may be used to endorse or promote products derived 17 * from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <stdio.h> 33 #include <sys/ioctl.h> 34 #include <sys/fcntl.h> 35 #include <sys/mman.h> 36 #include <errno.h> 37 #include <unistd.h> 38 39 #include "tpctl.h" 40 41 #ifndef lint 42 #include <sys/cdefs.h> 43 __RCSID("$NetBSD: tp.c,v 1.1 2002/08/27 14:12:18 takemura Exp $"); 44 #endif /* not lint */ 45 46 int 47 tp_init(struct tp *tp, int fd) 48 { 49 u_int flags; 50 struct wsmouse_calibcoords calibcoords; 51 52 tp->fd = fd; 53 54 #if 0 55 if (ioctl(tp->fd, WSMOUSEIO_GTYPE, &type) < 0) 56 return (-1); 57 if (type != WSMOUSE_TYPE_TPANEL) { 58 errno = EINVAL; 59 return (-1); 60 } 61 #else 62 if (ioctl(tp->fd, WSMOUSEIO_GCALIBCOORDS, &calibcoords) < 0) 63 return (-1); 64 #endif 65 flags = fcntl(tp->fd, F_GETFL); 66 if (flags == -1) 67 return (-1); 68 flags |= O_NONBLOCK; 69 if (fcntl(tp->fd, F_SETFL, flags) < 0) 70 return (-1); 71 72 /* 73 * XXX, currently, you can't retrieve any identifier 74 */ 75 tp->id[0] = '*'; 76 tp->id[1] = '\0'; 77 78 return (0); 79 } 80 81 int 82 tp_setrawmode(struct tp *tp) 83 { 84 struct wsmouse_calibcoords raw; 85 86 memset(&raw, 0, sizeof(raw)); 87 raw.samplelen = WSMOUSE_CALIBCOORDS_RESET; 88 89 return ioctl(tp->fd, WSMOUSEIO_SCALIBCOORDS, &raw); 90 } 91 92 int 93 tp_setcalibcoords(struct tp *tp, struct wsmouse_calibcoords *calibcoords) 94 { 95 return ioctl(tp->fd, WSMOUSEIO_SCALIBCOORDS, calibcoords); 96 } 97 98 int 99 tp_flush(struct tp *tp) 100 { 101 struct wscons_event ev; 102 int count; 103 104 count = 0; 105 while (read(tp->fd, &ev, sizeof(ev)) == sizeof(ev)) { 106 switch (ev.type) { 107 case WSCONS_EVENT_MOUSE_UP: 108 case WSCONS_EVENT_MOUSE_DOWN: 109 case WSCONS_EVENT_MOUSE_DELTA_X: 110 case WSCONS_EVENT_MOUSE_DELTA_Y: 111 case WSCONS_EVENT_MOUSE_ABSOLUTE_X: 112 case WSCONS_EVENT_MOUSE_ABSOLUTE_Y: 113 case WSCONS_EVENT_MOUSE_DELTA_Z: 114 case WSCONS_EVENT_MOUSE_ABSOLUTE_Z: 115 count++; 116 break; 117 118 default: 119 break; 120 } 121 } 122 123 return (count); 124 } 125 126 int 127 tp_get(struct tp *tp, int *x, int *y, int (*cancel)(void *), void *data) 128 { 129 struct wscons_event ev; 130 int x_done, y_done, res; 131 132 x_done = y_done = 0; 133 while (1) { 134 if (cancel != NULL && (res = (*cancel)(data)) != 0) 135 return (res); 136 if ((res = read(tp->fd, &ev, sizeof(ev))) < 0) { 137 if (errno != EWOULDBLOCK) 138 return (-1); 139 continue; 140 } 141 if (res != sizeof(ev)) { 142 errno = EINVAL; 143 return (-1); 144 } 145 switch (ev.type) { 146 case WSCONS_EVENT_MOUSE_ABSOLUTE_X: 147 *x = ev.value; 148 if (y_done) 149 return (0); 150 x_done = 1; 151 break; 152 153 case WSCONS_EVENT_MOUSE_ABSOLUTE_Y: 154 *y = ev.value; 155 if (x_done) 156 return (0); 157 y_done = 1; 158 break; 159 160 default: 161 break; 162 } 163 } 164 } 165 166 int 167 tp_waitup(struct tp *tp, int msec, int (*cancel)(void*), void *data) 168 { 169 int res; 170 171 while (1) { 172 if (cancel != NULL && (res = (*cancel)(data)) != 0) 173 return (res); 174 usleep(msec * 1000); 175 if (tp_flush(tp) == 0) 176 break; 177 } 178 179 return (0); 180 } 181