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 case MOUSE_GETHWINFO: /* get device information */ 141 hw = (mousehw_t *)data; 142 hw->buttons = 10; /* XXX unknown */ 143 hw->iftype = MOUSE_IF_SYSMOUSE; 144 hw->type = MOUSE_MOUSE; 145 hw->model = MOUSE_MODEL_GENERIC; 146 hw->hwid = 0; 147 return 0; 148 149 case MOUSE_GETMODE: /* get protocol/mode */ 150 mode = (mousemode_t *)data; 151 mode->level = mouse_level; 152 switch (mode->level) { 153 case 0: /* emulate MouseSystems protocol */ 154 mode->protocol = MOUSE_PROTO_MSC; 155 mode->rate = -1; /* unknown */ 156 mode->resolution = -1; /* unknown */ 157 mode->accelfactor = 0; /* disabled */ 158 mode->packetsize = MOUSE_MSC_PACKETSIZE; 159 mode->syncmask[0] = MOUSE_MSC_SYNCMASK; 160 mode->syncmask[1] = MOUSE_MSC_SYNC; 161 break; 162 163 case 1: /* sysmouse protocol */ 164 mode->protocol = MOUSE_PROTO_SYSMOUSE; 165 mode->rate = -1; 166 mode->resolution = -1; 167 mode->accelfactor = 0; 168 mode->packetsize = MOUSE_SYS_PACKETSIZE; 169 mode->syncmask[0] = MOUSE_SYS_SYNCMASK; 170 mode->syncmask[1] = MOUSE_SYS_SYNC; 171 break; 172 } 173 return 0; 174 175 case MOUSE_SETMODE: /* set protocol/mode */ 176 mode = (mousemode_t *)data; 177 if (mode->level == -1) 178 ; /* don't change the current setting */ 179 else if ((mode->level < 0) || (mode->level > 1)) 180 return EINVAL; 181 else 182 mouse_level = mode->level; 183 return 0; 184 185 case MOUSE_GETLEVEL: /* get operation level */ 186 *(int *)data = mouse_level; 187 return 0; 188 189 case MOUSE_SETLEVEL: /* set operation level */ 190 if ((*(int *)data < 0) || (*(int *)data > 1)) 191 return EINVAL; 192 mouse_level = *(int *)data; 193 return 0; 194 195 case MOUSE_GETSTATUS: /* get accumulated mouse events */ 196 *(mousestatus_t *)data = mouse_status; 197 mouse_status.flags = 0; 198 mouse_status.obutton = mouse_status.button; 199 mouse_status.dx = 0; 200 mouse_status.dy = 0; 201 mouse_status.dz = 0; 202 return 0; 203 204 case MOUSE_READSTATE: /* read status from the device */ 205 case MOUSE_READDATA: /* read data from the device */ 206 return ENODEV; 207 } 208 209 return (ENOIOCTL); 210 } 211 212 static int 213 smdev_param(struct tty *tp, struct termios *t) 214 { 215 216 /* 217 * Set the output baud rate to zero. The mouse device supports 218 * no output, so we don't want to waste buffers. 219 */ 220 t->c_ispeed = TTYDEF_SPEED; 221 t->c_ospeed = B0; 222 223 return (0); 224 } 225 226 static struct ttydevsw smdev_ttydevsw = { 227 .tsw_flags = TF_NOPREFIX, 228 .tsw_close = smdev_close, 229 .tsw_ioctl = smdev_ioctl, 230 .tsw_param = smdev_param, 231 }; 232 233 static void 234 sm_attach_mouse(void *unused) 235 { 236 if (!vty_enabled(VTY_SC)) 237 return; 238 sysmouse_tty = tty_alloc(&smdev_ttydevsw, NULL); 239 tty_makedev(sysmouse_tty, NULL, "sysmouse"); 240 #ifdef EVDEV_SUPPORT 241 smdev_evdev_init(); 242 #endif 243 } 244 245 SYSINIT(sysmouse, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sm_attach_mouse, NULL); 246 247 int 248 sysmouse_event(mouse_info_t *info) 249 { 250 /* MOUSE_BUTTON?DOWN -> MOUSE_MSC_BUTTON?UP */ 251 static int butmap[8] = { 252 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 253 MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 254 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON3UP, 255 MOUSE_MSC_BUTTON3UP, 256 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP, 257 MOUSE_MSC_BUTTON2UP, 258 MOUSE_MSC_BUTTON1UP, 259 0, 260 }; 261 u_char buf[8]; 262 int x, y, z; 263 int i, flags = 0; 264 265 tty_lock(sysmouse_tty); 266 267 switch (info->operation) { 268 case MOUSE_ACTION: 269 mouse_status.button = info->u.data.buttons; 270 /* FALL THROUGH */ 271 case MOUSE_MOTION_EVENT: 272 x = info->u.data.x; 273 y = info->u.data.y; 274 z = info->u.data.z; 275 break; 276 case MOUSE_BUTTON_EVENT: 277 x = y = z = 0; 278 if (info->u.event.value > 0) 279 mouse_status.button |= info->u.event.id; 280 else 281 mouse_status.button &= ~info->u.event.id; 282 break; 283 default: 284 goto done; 285 } 286 287 mouse_status.dx += x; 288 mouse_status.dy += y; 289 mouse_status.dz += z; 290 mouse_status.flags |= ((x || y || z) ? MOUSE_POSCHANGED : 0) 291 | (mouse_status.obutton ^ mouse_status.button); 292 flags = mouse_status.flags; 293 if (flags == 0) 294 goto done; 295 296 #ifdef EVDEV_SUPPORT 297 smdev_evdev_write(x, y, z, mouse_status.button); 298 if (evdev_is_grabbed(sysmouse_evdev)) 299 goto done; 300 #endif 301 302 if (!tty_opened(sysmouse_tty)) 303 goto done; 304 305 /* the first five bytes are compatible with MouseSystems' */ 306 buf[0] = MOUSE_MSC_SYNC 307 | butmap[mouse_status.button & MOUSE_STDBUTTONS]; 308 x = imax(imin(x, 255), -256); 309 buf[1] = x >> 1; 310 buf[3] = x - buf[1]; 311 y = -imax(imin(y, 255), -256); 312 buf[2] = y >> 1; 313 buf[4] = y - buf[2]; 314 for (i = 0; i < MOUSE_MSC_PACKETSIZE; ++i) 315 ttydisc_rint(sysmouse_tty, buf[i], 0); 316 if (mouse_level >= 1) { 317 /* extended part */ 318 z = imax(imin(z, 127), -128); 319 buf[5] = (z >> 1) & 0x7f; 320 buf[6] = (z - (z >> 1)) & 0x7f; 321 /* buttons 4-10 */ 322 buf[7] = (~mouse_status.button >> 3) & 0x7f; 323 for (i = MOUSE_MSC_PACKETSIZE; i < MOUSE_SYS_PACKETSIZE; ++i) 324 ttydisc_rint(sysmouse_tty, buf[i], 0); 325 } 326 ttydisc_rint_done(sysmouse_tty); 327 328 done: tty_unlock(sysmouse_tty); 329 return (flags); 330 } 331 332 #endif /* !SC_NO_SYSMOUSE */ 333