1 /*- 2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer as 10 * the first lines of this file unmodified. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 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 */ 55 static struct tty *sysmouse_tty; 56 static int mouse_level; /* sysmouse protocol level */ 57 static mousestatus_t mouse_status; 58 59 #ifdef EVDEV_SUPPORT 60 static struct evdev_dev *sysmouse_evdev; 61 62 static void 63 smdev_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 87 static void 88 smdev_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 /* XXX: Edge triggering should be used here */ 111 if (buttons & (1 << 5)) 112 evdev_push_rel(sysmouse_evdev, REL_HWHEEL, 1); 113 else if (buttons & (1 << 6)) 114 evdev_push_rel(sysmouse_evdev, REL_HWHEEL, -1); 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 124 125 static void 126 smdev_close(struct tty *tp) 127 { 128 mouse_level = 0; 129 } 130 131 static int 132 smdev_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) { 138 139 case MOUSE_GETHWINFO: /* get device information */ 140 hw = (mousehw_t *)data; 141 hw->buttons = 10; /* XXX unknown */ 142 hw->iftype = MOUSE_IF_SYSMOUSE; 143 hw->type = MOUSE_MOUSE; 144 hw->model = MOUSE_MODEL_GENERIC; 145 hw->hwid = 0; 146 return 0; 147 148 case MOUSE_GETMODE: /* get protocol/mode */ 149 mode = (mousemode_t *)data; 150 mode->level = mouse_level; 151 switch (mode->level) { 152 case 0: /* emulate MouseSystems protocol */ 153 mode->protocol = MOUSE_PROTO_MSC; 154 mode->rate = -1; /* unknown */ 155 mode->resolution = -1; /* unknown */ 156 mode->accelfactor = 0; /* disabled */ 157 mode->packetsize = MOUSE_MSC_PACKETSIZE; 158 mode->syncmask[0] = MOUSE_MSC_SYNCMASK; 159 mode->syncmask[1] = MOUSE_MSC_SYNC; 160 break; 161 162 case 1: /* sysmouse protocol */ 163 mode->protocol = MOUSE_PROTO_SYSMOUSE; 164 mode->rate = -1; 165 mode->resolution = -1; 166 mode->accelfactor = 0; 167 mode->packetsize = MOUSE_SYS_PACKETSIZE; 168 mode->syncmask[0] = MOUSE_SYS_SYNCMASK; 169 mode->syncmask[1] = MOUSE_SYS_SYNC; 170 break; 171 } 172 return 0; 173 174 case MOUSE_SETMODE: /* set protocol/mode */ 175 mode = (mousemode_t *)data; 176 if (mode->level == -1) 177 ; /* don't change the current setting */ 178 else if ((mode->level < 0) || (mode->level > 1)) 179 return EINVAL; 180 else 181 mouse_level = mode->level; 182 return 0; 183 184 case MOUSE_GETLEVEL: /* get operation level */ 185 *(int *)data = mouse_level; 186 return 0; 187 188 case MOUSE_SETLEVEL: /* set operation level */ 189 if ((*(int *)data < 0) || (*(int *)data > 1)) 190 return EINVAL; 191 mouse_level = *(int *)data; 192 return 0; 193 194 case MOUSE_GETSTATUS: /* get accumulated mouse events */ 195 *(mousestatus_t *)data = mouse_status; 196 mouse_status.flags = 0; 197 mouse_status.obutton = mouse_status.button; 198 mouse_status.dx = 0; 199 mouse_status.dy = 0; 200 mouse_status.dz = 0; 201 return 0; 202 203 #ifdef notyet 204 case MOUSE_GETVARS: /* get internal mouse variables */ 205 case MOUSE_SETVARS: /* set internal mouse variables */ 206 return ENODEV; 207 #endif 208 209 case MOUSE_READSTATE: /* read status from the device */ 210 case MOUSE_READDATA: /* read data from the device */ 211 return ENODEV; 212 } 213 214 return (ENOIOCTL); 215 } 216 217 static int 218 smdev_param(struct tty *tp, struct termios *t) 219 { 220 221 /* 222 * Set the output baud rate to zero. The mouse device supports 223 * no output, so we don't want to waste buffers. 224 */ 225 t->c_ispeed = TTYDEF_SPEED; 226 t->c_ospeed = B0; 227 228 return (0); 229 } 230 231 static struct ttydevsw smdev_ttydevsw = { 232 .tsw_flags = TF_NOPREFIX, 233 .tsw_close = smdev_close, 234 .tsw_ioctl = smdev_ioctl, 235 .tsw_param = smdev_param, 236 }; 237 238 static void 239 sm_attach_mouse(void *unused) 240 { 241 if (!vty_enabled(VTY_SC)) 242 return; 243 sysmouse_tty = tty_alloc(&smdev_ttydevsw, NULL); 244 tty_makedev(sysmouse_tty, NULL, "sysmouse"); 245 #ifdef EVDEV_SUPPORT 246 smdev_evdev_init(); 247 #endif 248 } 249 250 SYSINIT(sysmouse, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sm_attach_mouse, NULL); 251 252 int 253 sysmouse_event(mouse_info_t *info) 254 { 255 /* MOUSE_BUTTON?DOWN -> MOUSE_MSC_BUTTON?UP */ 256 static int butmap[8] = { 257 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 258 MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 259 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON3UP, 260 MOUSE_MSC_BUTTON3UP, 261 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP, 262 MOUSE_MSC_BUTTON2UP, 263 MOUSE_MSC_BUTTON1UP, 264 0, 265 }; 266 u_char buf[8]; 267 int x, y, z; 268 int i, flags = 0; 269 270 tty_lock(sysmouse_tty); 271 272 switch (info->operation) { 273 case MOUSE_ACTION: 274 mouse_status.button = info->u.data.buttons; 275 /* FALL THROUGH */ 276 case MOUSE_MOTION_EVENT: 277 x = info->u.data.x; 278 y = info->u.data.y; 279 z = info->u.data.z; 280 break; 281 case MOUSE_BUTTON_EVENT: 282 x = y = z = 0; 283 if (info->u.event.value > 0) 284 mouse_status.button |= info->u.event.id; 285 else 286 mouse_status.button &= ~info->u.event.id; 287 break; 288 default: 289 goto done; 290 } 291 292 mouse_status.dx += x; 293 mouse_status.dy += y; 294 mouse_status.dz += z; 295 mouse_status.flags |= ((x || y || z) ? MOUSE_POSCHANGED : 0) 296 | (mouse_status.obutton ^ mouse_status.button); 297 flags = mouse_status.flags; 298 if (flags == 0) 299 goto done; 300 301 #ifdef EVDEV_SUPPORT 302 smdev_evdev_write(x, y, z, mouse_status.button); 303 #endif 304 305 if (!tty_opened(sysmouse_tty)) 306 goto done; 307 308 /* the first five bytes are compatible with MouseSystems' */ 309 buf[0] = MOUSE_MSC_SYNC 310 | butmap[mouse_status.button & MOUSE_STDBUTTONS]; 311 x = imax(imin(x, 255), -256); 312 buf[1] = x >> 1; 313 buf[3] = x - buf[1]; 314 y = -imax(imin(y, 255), -256); 315 buf[2] = y >> 1; 316 buf[4] = y - buf[2]; 317 for (i = 0; i < MOUSE_MSC_PACKETSIZE; ++i) 318 ttydisc_rint(sysmouse_tty, buf[i], 0); 319 if (mouse_level >= 1) { 320 /* extended part */ 321 z = imax(imin(z, 127), -128); 322 buf[5] = (z >> 1) & 0x7f; 323 buf[6] = (z - (z >> 1)) & 0x7f; 324 /* buttons 4-10 */ 325 buf[7] = (~mouse_status.button >> 3) & 0x7f; 326 for (i = MOUSE_MSC_PACKETSIZE; i < MOUSE_SYS_PACKETSIZE; ++i) 327 ttydisc_rint(sysmouse_tty, buf[i], 0); 328 } 329 ttydisc_rint_done(sysmouse_tty); 330 331 done: tty_unlock(sysmouse_tty); 332 return (flags); 333 } 334 335 #endif /* !SC_NO_SYSMOUSE */ 336