1/*- 2 * SPDX-License-Identifier: BSD-2-Clause 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#include "opt_evdev.h" 32#include "opt_syscons.h" 33 34#include <sys/param.h> 35#include <sys/systm.h> 36#include <sys/priv.h> 37#include <sys/serial.h> 38#include <sys/tty.h> 39#include <sys/ttydefaults.h> 40#include <sys/kernel.h> 41#include <sys/cons.h> 42#include <sys/consio.h> 43#include <sys/mouse.h> 44 45#include <dev/syscons/syscons.h> 46 47#ifdef EVDEV_SUPPORT 48#include <dev/evdev/input.h> 49#include <dev/evdev/evdev.h> 50#endif 51 52#ifndef SC_NO_SYSMOUSE 53 54/* local variables */ 55static struct tty *sysmouse_tty; 56static int mouse_level; /* sysmouse protocol level */ 57static mousestatus_t mouse_status; 58 59#ifdef EVDEV_SUPPORT 60static struct evdev_dev *sysmouse_evdev; 61 62static void 63smdev_evdev_init(void) 64{ 65 int i; 66 67 sysmouse_evdev = evdev_alloc(); 68 evdev_set_name(sysmouse_evdev, "System mouse"); 69 evdev_set_phys(sysmouse_evdev, "sysmouse"); 70 evdev_set_id(sysmouse_evdev, BUS_VIRTUAL, 0, 0, 0); 71 evdev_support_prop(sysmouse_evdev, INPUT_PROP_POINTER); 72 evdev_support_event(sysmouse_evdev, EV_SYN); 73 evdev_support_event(sysmouse_evdev, EV_REL); 74 evdev_support_event(sysmouse_evdev, EV_KEY); 75 evdev_support_rel(sysmouse_evdev, REL_X); 76 evdev_support_rel(sysmouse_evdev, REL_Y); 77 evdev_support_rel(sysmouse_evdev, REL_WHEEL); 78 evdev_support_rel(sysmouse_evdev, REL_HWHEEL); 79 for (i = 0; i < 8; i++) 80 evdev_support_key(sysmouse_evdev, BTN_MOUSE + i); 81 if (evdev_register(sysmouse_evdev)) { 82 evdev_free(sysmouse_evdev); 83 sysmouse_evdev = NULL; 84 } 85} 86 87static void 88smdev_evdev_write(int x, int y, int z, int buttons) 89{ 90 91 if (sysmouse_evdev == NULL || !(evdev_rcpt_mask & EVDEV_RCPT_SYSMOUSE)) 92 return; 93 94 evdev_push_event(sysmouse_evdev, EV_REL, REL_X, x); 95 evdev_push_event(sysmouse_evdev, EV_REL, REL_Y, y); 96 switch (evdev_sysmouse_t_axis) { 97 case EVDEV_SYSMOUSE_T_AXIS_PSM: 98 switch (z) { 99 case 1: 100 case -1: 101 evdev_push_rel(sysmouse_evdev, REL_WHEEL, -z); 102 break; 103 case 2: 104 case -2: 105 evdev_push_rel(sysmouse_evdev, REL_HWHEEL, z / 2); 106 break; 107 } 108 break; 109 case EVDEV_SYSMOUSE_T_AXIS_UMS: 110 if (buttons & (1 << 6)) 111 evdev_push_rel(sysmouse_evdev, REL_HWHEEL, 1); 112 else if (buttons & (1 << 5)) 113 evdev_push_rel(sysmouse_evdev, REL_HWHEEL, -1); 114 buttons &= ~((1 << 5)|(1 << 6)); 115 /* PASSTHROUGH */ 116 case EVDEV_SYSMOUSE_T_AXIS_NONE: 117 default: 118 evdev_push_rel(sysmouse_evdev, REL_WHEEL, -z); 119 } 120 evdev_push_mouse_btn(sysmouse_evdev, buttons); 121 evdev_sync(sysmouse_evdev); 122} 123#endif 124 125static void 126smdev_close(struct tty *tp) 127{ 128 mouse_level = 0; 129} 130 131static int 132smdev_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td) 133{ 134 mousehw_t *hw; 135 mousemode_t *mode; 136 137 switch (cmd) { 138 case MOUSE_GETHWINFO: /* get device information */ 139 hw = (mousehw_t *)data; 140 hw->buttons = 10; /* XXX unknown */ 141 hw->iftype = MOUSE_IF_SYSMOUSE; 142 hw->type = MOUSE_MOUSE; 143 hw->model = MOUSE_MODEL_GENERIC; 144 hw->hwid = 0; 145 return 0; 146 147 case MOUSE_GETMODE: /* get protocol/mode */ 148 mode = (mousemode_t *)data; 149 mode->level = mouse_level; 150 switch (mode->level) { 151 case 0: /* emulate MouseSystems protocol */ 152 mode->protocol = MOUSE_PROTO_MSC; 153 mode->rate = -1; /* unknown */ 154 mode->resolution = -1; /* unknown */ 155 mode->accelfactor = 0; /* disabled */ 156 mode->packetsize = MOUSE_MSC_PACKETSIZE; 157 mode->syncmask[0] = MOUSE_MSC_SYNCMASK; 158 mode->syncmask[1] = MOUSE_MSC_SYNC; 159 break; 160 161 case 1: /* sysmouse protocol */ 162 mode->protocol = MOUSE_PROTO_SYSMOUSE; 163 mode->rate = -1; 164 mode->resolution = -1; 165 mode->accelfactor = 0; 166 mode->packetsize = MOUSE_SYS_PACKETSIZE; 167 mode->syncmask[0] = MOUSE_SYS_SYNCMASK; 168 mode->syncmask[1] = MOUSE_SYS_SYNC; 169 break; 170 } 171 return 0; 172 173 case MOUSE_SETMODE: /* set protocol/mode */ 174 mode = (mousemode_t *)data; 175 if (mode->level == -1) 176 ; /* don't change the current setting */ 177 else if ((mode->level < 0) || (mode->level > 1)) 178 return EINVAL; 179 else 180 mouse_level = mode->level; 181 return 0; 182 183 case MOUSE_GETLEVEL: /* get operation level */ 184 *(int *)data = mouse_level; 185 return 0; 186 187 case MOUSE_SETLEVEL: /* set operation level */ 188 if ((*(int *)data < 0) || (*(int *)data > 1)) 189 return EINVAL; 190 mouse_level = *(int *)data; 191 return 0; 192 193 case MOUSE_GETSTATUS: /* get accumulated mouse events */ 194 *(mousestatus_t *)data = mouse_status; 195 mouse_status.flags = 0; 196 mouse_status.obutton = mouse_status.button; 197 mouse_status.dx = 0; 198 mouse_status.dy = 0; 199 mouse_status.dz = 0; 200 return 0; 201 202 case MOUSE_READSTATE: /* read status from the device */ 203 case MOUSE_READDATA: /* read data from the device */ 204 return ENODEV; 205 } 206 207 return (ENOIOCTL); 208} 209 210static int 211smdev_param(struct tty *tp, struct termios *t) 212{ 213 214 /* 215 * Set the output baud rate to zero. The mouse device supports 216 * no output, so we don't want to waste buffers. 217 */ 218 t->c_ispeed = TTYDEF_SPEED; 219 t->c_ospeed = B0; 220 221 return (0); 222} 223 224static struct ttydevsw smdev_ttydevsw = { 225 .tsw_flags = TF_NOPREFIX, 226 .tsw_close = smdev_close, 227 .tsw_ioctl = smdev_ioctl, 228 .tsw_param = smdev_param, 229}; 230 231static void 232sm_attach_mouse(void *unused) 233{ 234 if (!vty_enabled(VTY_SC)) 235 return; 236 sysmouse_tty = tty_alloc(&smdev_ttydevsw, NULL); 237 tty_makedev(sysmouse_tty, NULL, "sysmouse"); 238#ifdef EVDEV_SUPPORT 239 smdev_evdev_init(); 240#endif 241} 242 243SYSINIT(sysmouse, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sm_attach_mouse, NULL); 244 245int 246sysmouse_event(mouse_info_t *info) 247{ 248 /* MOUSE_BUTTON?DOWN -> MOUSE_MSC_BUTTON?UP */ 249 static int butmap[8] = { 250 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 251 MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 252 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON3UP, 253 MOUSE_MSC_BUTTON3UP, 254 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP, 255 MOUSE_MSC_BUTTON2UP, 256 MOUSE_MSC_BUTTON1UP, 257 0, 258 }; 259 u_char buf[8]; 260 int x, y, z; 261 int i, flags = 0; 262 263 tty_lock(sysmouse_tty); 264 265 switch (info->operation) { 266 case MOUSE_ACTION: 267 mouse_status.button = info->u.data.buttons; 268 /* FALL THROUGH */ 269 case MOUSE_MOTION_EVENT: 270 x = info->u.data.x; 271 y = info->u.data.y; 272 z = info->u.data.z; 273 break; 274 case MOUSE_BUTTON_EVENT: 275 x = y = z = 0; 276 if (info->u.event.value > 0) 277 mouse_status.button |= info->u.event.id; 278 else 279 mouse_status.button &= ~info->u.event.id; 280 break; 281 default: 282 goto done; 283 } 284 285 mouse_status.dx += x; 286 mouse_status.dy += y; 287 mouse_status.dz += z; 288 mouse_status.flags |= ((x || y || z) ? MOUSE_POSCHANGED : 0) 289 | (mouse_status.obutton ^ mouse_status.button); 290 flags = mouse_status.flags; 291 if (flags == 0) 292 goto done; 293 294#ifdef EVDEV_SUPPORT 295 smdev_evdev_write(x, y, z, mouse_status.button); 296 if (evdev_is_grabbed(sysmouse_evdev)) 297 goto done; 298#endif 299 300 if (!tty_opened(sysmouse_tty)) 301 goto done; 302 303 /* the first five bytes are compatible with MouseSystems' */ 304 buf[0] = MOUSE_MSC_SYNC 305 | butmap[mouse_status.button & MOUSE_STDBUTTONS]; 306 x = imax(imin(x, 255), -256); 307 buf[1] = x >> 1; 308 buf[3] = x - buf[1]; 309 y = -imax(imin(y, 255), -256); 310 buf[2] = y >> 1; 311 buf[4] = y - buf[2]; 312 for (i = 0; i < MOUSE_MSC_PACKETSIZE; ++i) 313 ttydisc_rint(sysmouse_tty, buf[i], 0); 314 if (mouse_level >= 1) { 315 /* extended part */ 316 z = imax(imin(z, 127), -128); 317 buf[5] = (z >> 1) & 0x7f; 318 buf[6] = (z - (z >> 1)) & 0x7f; 319 /* buttons 4-10 */ 320 buf[7] = (~mouse_status.button >> 3) & 0x7f; 321 for (i = MOUSE_MSC_PACKETSIZE; i < MOUSE_SYS_PACKETSIZE; ++i) 322 ttydisc_rint(sysmouse_tty, buf[i], 0); 323 } 324 ttydisc_rint_done(sysmouse_tty); 325 326done: tty_unlock(sysmouse_tty); 327 return (flags); 328} 329 330#endif /* !SC_NO_SYSMOUSE */ 331