1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 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 as 12 * the first lines of this file unmodified. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include "opt_evdev.h" 34 #include "opt_syscons.h" 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/priv.h> 39 #include <sys/serial.h> 40 #include <sys/tty.h> 41 #include <sys/ttydefaults.h> 42 #include <sys/kernel.h> 43 #include <sys/cons.h> 44 #include <sys/consio.h> 45 #include <sys/mouse.h> 46 47 #include <dev/syscons/syscons.h> 48 49 #ifdef EVDEV_SUPPORT 50 #include <dev/evdev/input.h> 51 #include <dev/evdev/evdev.h> 52 #endif 53 54 #ifndef SC_NO_SYSMOUSE 55 56 /* local variables */ 57 static struct tty *sysmouse_tty; 58 static int mouse_level; /* sysmouse protocol level */ 59 static mousestatus_t mouse_status; 60 61 #ifdef EVDEV_SUPPORT 62 static struct evdev_dev *sysmouse_evdev; 63 64 static void 65 smdev_evdev_init(void) 66 { 67 int i; 68 69 sysmouse_evdev = evdev_alloc(); 70 evdev_set_name(sysmouse_evdev, "System mouse"); 71 evdev_set_phys(sysmouse_evdev, "sysmouse"); 72 evdev_set_id(sysmouse_evdev, BUS_VIRTUAL, 0, 0, 0); 73 evdev_support_prop(sysmouse_evdev, INPUT_PROP_POINTER); 74 evdev_support_event(sysmouse_evdev, EV_SYN); 75 evdev_support_event(sysmouse_evdev, EV_REL); 76 evdev_support_event(sysmouse_evdev, EV_KEY); 77 evdev_support_rel(sysmouse_evdev, REL_X); 78 evdev_support_rel(sysmouse_evdev, REL_Y); 79 evdev_support_rel(sysmouse_evdev, REL_WHEEL); 80 evdev_support_rel(sysmouse_evdev, REL_HWHEEL); 81 for (i = 0; i < 8; i++) 82 evdev_support_key(sysmouse_evdev, BTN_MOUSE + i); 83 if (evdev_register(sysmouse_evdev)) { 84 evdev_free(sysmouse_evdev); 85 sysmouse_evdev = NULL; 86 } 87 } 88 89 static void 90 smdev_evdev_write(int x, int y, int z, int buttons) 91 { 92 93 if (sysmouse_evdev == NULL || !(evdev_rcpt_mask & EVDEV_RCPT_SYSMOUSE)) 94 return; 95 96 evdev_push_event(sysmouse_evdev, EV_REL, REL_X, x); 97 evdev_push_event(sysmouse_evdev, EV_REL, REL_Y, y); 98 switch (evdev_sysmouse_t_axis) { 99 case EVDEV_SYSMOUSE_T_AXIS_PSM: 100 switch (z) { 101 case 1: 102 case -1: 103 evdev_push_rel(sysmouse_evdev, REL_WHEEL, -z); 104 break; 105 case 2: 106 case -2: 107 evdev_push_rel(sysmouse_evdev, REL_HWHEEL, z / 2); 108 break; 109 } 110 break; 111 case EVDEV_SYSMOUSE_T_AXIS_UMS: 112 if (buttons & (1 << 6)) 113 evdev_push_rel(sysmouse_evdev, REL_HWHEEL, 1); 114 else if (buttons & (1 << 5)) 115 evdev_push_rel(sysmouse_evdev, REL_HWHEEL, -1); 116 buttons &= ~((1 << 5)|(1 << 6)); 117 /* PASSTHROUGH */ 118 case EVDEV_SYSMOUSE_T_AXIS_NONE: 119 default: 120 evdev_push_rel(sysmouse_evdev, REL_WHEEL, -z); 121 } 122 evdev_push_mouse_btn(sysmouse_evdev, buttons); 123 evdev_sync(sysmouse_evdev); 124 } 125 #endif 126 127 static void 128 smdev_close(struct tty *tp) 129 { 130 mouse_level = 0; 131 } 132 133 static int 134 smdev_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td) 135 { 136 mousehw_t *hw; 137 mousemode_t *mode; 138 139 switch (cmd) { 140 141 case MOUSE_GETHWINFO: /* get device information */ 142 hw = (mousehw_t *)data; 143 hw->buttons = 10; /* XXX unknown */ 144 hw->iftype = MOUSE_IF_SYSMOUSE; 145 hw->type = MOUSE_MOUSE; 146 hw->model = MOUSE_MODEL_GENERIC; 147 hw->hwid = 0; 148 return 0; 149 150 case MOUSE_GETMODE: /* get protocol/mode */ 151 mode = (mousemode_t *)data; 152 mode->level = mouse_level; 153 switch (mode->level) { 154 case 0: /* emulate MouseSystems protocol */ 155 mode->protocol = MOUSE_PROTO_MSC; 156 mode->rate = -1; /* unknown */ 157 mode->resolution = -1; /* unknown */ 158 mode->accelfactor = 0; /* disabled */ 159 mode->packetsize = MOUSE_MSC_PACKETSIZE; 160 mode->syncmask[0] = MOUSE_MSC_SYNCMASK; 161 mode->syncmask[1] = MOUSE_MSC_SYNC; 162 break; 163 164 case 1: /* sysmouse protocol */ 165 mode->protocol = MOUSE_PROTO_SYSMOUSE; 166 mode->rate = -1; 167 mode->resolution = -1; 168 mode->accelfactor = 0; 169 mode->packetsize = MOUSE_SYS_PACKETSIZE; 170 mode->syncmask[0] = MOUSE_SYS_SYNCMASK; 171 mode->syncmask[1] = MOUSE_SYS_SYNC; 172 break; 173 } 174 return 0; 175 176 case MOUSE_SETMODE: /* set protocol/mode */ 177 mode = (mousemode_t *)data; 178 if (mode->level == -1) 179 ; /* don't change the current setting */ 180 else if ((mode->level < 0) || (mode->level > 1)) 181 return EINVAL; 182 else 183 mouse_level = mode->level; 184 return 0; 185 186 case MOUSE_GETLEVEL: /* get operation level */ 187 *(int *)data = mouse_level; 188 return 0; 189 190 case MOUSE_SETLEVEL: /* set operation level */ 191 if ((*(int *)data < 0) || (*(int *)data > 1)) 192 return EINVAL; 193 mouse_level = *(int *)data; 194 return 0; 195 196 case MOUSE_GETSTATUS: /* get accumulated mouse events */ 197 *(mousestatus_t *)data = mouse_status; 198 mouse_status.flags = 0; 199 mouse_status.obutton = mouse_status.button; 200 mouse_status.dx = 0; 201 mouse_status.dy = 0; 202 mouse_status.dz = 0; 203 return 0; 204 205 #ifdef notyet 206 case MOUSE_GETVARS: /* get internal mouse variables */ 207 case MOUSE_SETVARS: /* set internal mouse variables */ 208 return ENODEV; 209 #endif 210 211 case MOUSE_READSTATE: /* read status from the device */ 212 case MOUSE_READDATA: /* read data from the device */ 213 return ENODEV; 214 } 215 216 return (ENOIOCTL); 217 } 218 219 static int 220 smdev_param(struct tty *tp, struct termios *t) 221 { 222 223 /* 224 * Set the output baud rate to zero. The mouse device supports 225 * no output, so we don't want to waste buffers. 226 */ 227 t->c_ispeed = TTYDEF_SPEED; 228 t->c_ospeed = B0; 229 230 return (0); 231 } 232 233 static struct ttydevsw smdev_ttydevsw = { 234 .tsw_flags = TF_NOPREFIX, 235 .tsw_close = smdev_close, 236 .tsw_ioctl = smdev_ioctl, 237 .tsw_param = smdev_param, 238 }; 239 240 static void 241 sm_attach_mouse(void *unused) 242 { 243 if (!vty_enabled(VTY_SC)) 244 return; 245 sysmouse_tty = tty_alloc(&smdev_ttydevsw, NULL); 246 tty_makedev(sysmouse_tty, NULL, "sysmouse"); 247 #ifdef EVDEV_SUPPORT 248 smdev_evdev_init(); 249 #endif 250 } 251 252 SYSINIT(sysmouse, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sm_attach_mouse, NULL); 253 254 int 255 sysmouse_event(mouse_info_t *info) 256 { 257 /* MOUSE_BUTTON?DOWN -> MOUSE_MSC_BUTTON?UP */ 258 static int butmap[8] = { 259 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 260 MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 261 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON3UP, 262 MOUSE_MSC_BUTTON3UP, 263 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP, 264 MOUSE_MSC_BUTTON2UP, 265 MOUSE_MSC_BUTTON1UP, 266 0, 267 }; 268 u_char buf[8]; 269 int x, y, z; 270 int i, flags = 0; 271 272 tty_lock(sysmouse_tty); 273 274 switch (info->operation) { 275 case MOUSE_ACTION: 276 mouse_status.button = info->u.data.buttons; 277 /* FALL THROUGH */ 278 case MOUSE_MOTION_EVENT: 279 x = info->u.data.x; 280 y = info->u.data.y; 281 z = info->u.data.z; 282 break; 283 case MOUSE_BUTTON_EVENT: 284 x = y = z = 0; 285 if (info->u.event.value > 0) 286 mouse_status.button |= info->u.event.id; 287 else 288 mouse_status.button &= ~info->u.event.id; 289 break; 290 default: 291 goto done; 292 } 293 294 mouse_status.dx += x; 295 mouse_status.dy += y; 296 mouse_status.dz += z; 297 mouse_status.flags |= ((x || y || z) ? MOUSE_POSCHANGED : 0) 298 | (mouse_status.obutton ^ mouse_status.button); 299 flags = mouse_status.flags; 300 if (flags == 0) 301 goto done; 302 303 #ifdef EVDEV_SUPPORT 304 smdev_evdev_write(x, y, z, mouse_status.button); 305 #endif 306 307 if (!tty_opened(sysmouse_tty)) 308 goto done; 309 310 /* the first five bytes are compatible with MouseSystems' */ 311 buf[0] = MOUSE_MSC_SYNC 312 | butmap[mouse_status.button & MOUSE_STDBUTTONS]; 313 x = imax(imin(x, 255), -256); 314 buf[1] = x >> 1; 315 buf[3] = x - buf[1]; 316 y = -imax(imin(y, 255), -256); 317 buf[2] = y >> 1; 318 buf[4] = y - buf[2]; 319 for (i = 0; i < MOUSE_MSC_PACKETSIZE; ++i) 320 ttydisc_rint(sysmouse_tty, buf[i], 0); 321 if (mouse_level >= 1) { 322 /* extended part */ 323 z = imax(imin(z, 127), -128); 324 buf[5] = (z >> 1) & 0x7f; 325 buf[6] = (z - (z >> 1)) & 0x7f; 326 /* buttons 4-10 */ 327 buf[7] = (~mouse_status.button >> 3) & 0x7f; 328 for (i = MOUSE_MSC_PACKETSIZE; i < MOUSE_SYS_PACKETSIZE; ++i) 329 ttydisc_rint(sysmouse_tty, buf[i], 0); 330 } 331 ttydisc_rint_done(sysmouse_tty); 332 333 done: tty_unlock(sysmouse_tty); 334 return (flags); 335 } 336 337 #endif /* !SC_NO_SYSMOUSE */ 338