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 * $FreeBSD: src/sys/dev/syscons/sysmouse.c,v 1.2.2.2 2001/07/16 05:21:24 yokota Exp $ 27 * $DragonFly: src/sys/dev/misc/syscons/sysmouse.c,v 1.10 2006/02/01 20:43:42 corecode Exp $ 28 */ 29 30 #include "opt_syscons.h" 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/conf.h> 35 #include <sys/proc.h> 36 #include <sys/tty.h> 37 #include <sys/kernel.h> 38 #include <sys/thread2.h> 39 40 #include <machine/console.h> 41 #include <machine/mouse.h> 42 43 #include "syscons.h" 44 45 #ifndef SC_NO_SYSMOUSE 46 47 #define CDEV_MAJOR 12 /* major number, shared with syscons */ 48 #define SC_MOUSE 128 /* minor number */ 49 50 static d_open_t smopen; 51 static d_close_t smclose; 52 static d_ioctl_t smioctl; 53 54 static struct cdevsw sm_cdevsw = { 55 /* name */ "sysmouse", 56 /* maj */ CDEV_MAJOR, 57 /* flags */ D_TTY, 58 /* port */ NULL, 59 /* clone */ NULL, 60 61 /* open */ smopen, 62 /* close */ smclose, 63 /* read */ ttyread, 64 /* write */ nowrite, 65 /* ioctl */ smioctl, 66 /* poll */ ttypoll, 67 /* mmap */ nommap, 68 /* strategy */ nostrategy, 69 /* dump */ nodump, 70 /* psize */ nopsize 71 }; 72 73 /* local variables */ 74 static struct tty *sysmouse_tty; 75 static int mouse_level; /* sysmouse protocol level */ 76 static mousestatus_t mouse_status; 77 78 static void smstart(struct tty *tp); 79 static int smparam(struct tty *tp, struct termios *t); 80 81 static int 82 smopen(dev_t dev, int flag, int mode, struct thread *td) 83 { 84 struct tty *tp; 85 86 DPRINTF(5, ("smopen: dev:%d,%d, vty:%d\n", 87 major(dev), minor(dev), SC_VTY(dev))); 88 89 #if 0 90 if (SC_VTY(dev) != SC_MOUSE) 91 return ENXIO; 92 #endif 93 94 tp = dev->si_tty = ttymalloc(dev->si_tty); 95 if (!(tp->t_state & TS_ISOPEN)) { 96 sysmouse_tty = tp; 97 tp->t_oproc = smstart; 98 tp->t_param = smparam; 99 tp->t_stop = nottystop; 100 tp->t_dev = dev; 101 ttychars(tp); 102 tp->t_iflag = 0; 103 tp->t_oflag = 0; 104 tp->t_lflag = 0; 105 tp->t_cflag = TTYDEF_CFLAG; 106 tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; 107 smparam(tp, &tp->t_termios); 108 (*linesw[tp->t_line].l_modem)(tp, 1); 109 } else if (tp->t_state & TS_XCLUDE && suser(td)) { 110 return EBUSY; 111 } 112 113 return (*linesw[tp->t_line].l_open)(dev, tp); 114 } 115 116 static int 117 smclose(dev_t dev, int flag, int mode, struct thread *td) 118 { 119 struct tty *tp; 120 121 tp = dev->si_tty; 122 crit_enter(); 123 mouse_level = 0; 124 (*linesw[tp->t_line].l_close)(tp, flag); 125 ttyclose(tp); 126 crit_exit(); 127 128 return 0; 129 } 130 131 static void 132 smstart(struct tty *tp) 133 { 134 struct clist *rbp; 135 u_char buf[PCBURST]; 136 137 crit_enter(); 138 if (!(tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))) { 139 tp->t_state |= TS_BUSY; 140 rbp = &tp->t_outq; 141 while (rbp->c_cc) 142 q_to_b(rbp, buf, PCBURST); 143 tp->t_state &= ~TS_BUSY; 144 ttwwakeup(tp); 145 } 146 crit_exit(); 147 } 148 149 static int 150 smparam(struct tty *tp, struct termios *t) 151 { 152 tp->t_ispeed = t->c_ispeed; 153 tp->t_ospeed = t->c_ospeed; 154 tp->t_cflag = t->c_cflag; 155 return 0; 156 } 157 158 static int 159 smioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct thread *td) 160 { 161 struct tty *tp; 162 mousehw_t *hw; 163 mousemode_t *mode; 164 int error; 165 166 tp = dev->si_tty; 167 switch (cmd) { 168 169 case MOUSE_GETHWINFO: /* get device information */ 170 hw = (mousehw_t *)data; 171 hw->buttons = 10; /* XXX unknown */ 172 hw->iftype = MOUSE_IF_SYSMOUSE; 173 hw->type = MOUSE_MOUSE; 174 hw->model = MOUSE_MODEL_GENERIC; 175 hw->hwid = 0; 176 return 0; 177 178 case MOUSE_GETMODE: /* get protocol/mode */ 179 mode = (mousemode_t *)data; 180 mode->level = mouse_level; 181 switch (mode->level) { 182 case 0: /* emulate MouseSystems protocol */ 183 mode->protocol = MOUSE_PROTO_MSC; 184 mode->rate = -1; /* unknown */ 185 mode->resolution = -1; /* unknown */ 186 mode->accelfactor = 0; /* disabled */ 187 mode->packetsize = MOUSE_MSC_PACKETSIZE; 188 mode->syncmask[0] = MOUSE_MSC_SYNCMASK; 189 mode->syncmask[1] = MOUSE_MSC_SYNC; 190 break; 191 192 case 1: /* sysmouse protocol */ 193 mode->protocol = MOUSE_PROTO_SYSMOUSE; 194 mode->rate = -1; 195 mode->resolution = -1; 196 mode->accelfactor = 0; 197 mode->packetsize = MOUSE_SYS_PACKETSIZE; 198 mode->syncmask[0] = MOUSE_SYS_SYNCMASK; 199 mode->syncmask[1] = MOUSE_SYS_SYNC; 200 break; 201 } 202 return 0; 203 204 case MOUSE_SETMODE: /* set protocol/mode */ 205 mode = (mousemode_t *)data; 206 if (mode->level == -1) 207 ; /* don't change the current setting */ 208 else if ((mode->level < 0) || (mode->level > 1)) 209 return EINVAL; 210 else 211 mouse_level = mode->level; 212 return 0; 213 214 case MOUSE_GETLEVEL: /* get operation level */ 215 *(int *)data = mouse_level; 216 return 0; 217 218 case MOUSE_SETLEVEL: /* set operation level */ 219 if ((*(int *)data < 0) || (*(int *)data > 1)) 220 return EINVAL; 221 mouse_level = *(int *)data; 222 return 0; 223 224 case MOUSE_GETSTATUS: /* get accumulated mouse events */ 225 crit_enter(); 226 *(mousestatus_t *)data = mouse_status; 227 mouse_status.flags = 0; 228 mouse_status.obutton = mouse_status.button; 229 mouse_status.dx = 0; 230 mouse_status.dy = 0; 231 mouse_status.dz = 0; 232 crit_exit(); 233 return 0; 234 235 #if notyet 236 case MOUSE_GETVARS: /* get internal mouse variables */ 237 case MOUSE_SETVARS: /* set internal mouse variables */ 238 return ENODEV; 239 #endif 240 241 case MOUSE_READSTATE: /* read status from the device */ 242 case MOUSE_READDATA: /* read data from the device */ 243 return ENODEV; 244 } 245 246 error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, td); 247 if (error != ENOIOCTL) 248 return error; 249 error = ttioctl(tp, cmd, data, flag); 250 if (error != ENOIOCTL) 251 return error; 252 return ENOTTY; 253 } 254 255 static void 256 sm_attach_mouse(void *unused) 257 { 258 dev_t dev; 259 260 cdevsw_add(&sm_cdevsw, -1, SC_MOUSE); 261 dev = make_dev(&sm_cdevsw, SC_MOUSE, UID_ROOT, GID_WHEEL, 0600, 262 "sysmouse"); 263 /* sysmouse doesn't have scr_stat */ 264 } 265 266 SYSINIT(sysmouse, SI_SUB_DRIVERS, SI_ORDER_MIDDLE + CDEV_MAJOR, 267 sm_attach_mouse, NULL) 268 269 int 270 sysmouse_event(mouse_info_t *info) 271 { 272 /* MOUSE_BUTTON?DOWN -> MOUSE_MSC_BUTTON?UP */ 273 static int butmap[8] = { 274 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 275 MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 276 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON3UP, 277 MOUSE_MSC_BUTTON3UP, 278 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP, 279 MOUSE_MSC_BUTTON2UP, 280 MOUSE_MSC_BUTTON1UP, 281 0, 282 }; 283 u_char buf[8]; 284 int x, y, z; 285 int i; 286 287 switch (info->operation) { 288 case MOUSE_ACTION: 289 mouse_status.button = info->u.data.buttons; 290 /* FALL THROUGH */ 291 case MOUSE_MOTION_EVENT: 292 x = info->u.data.x; 293 y = info->u.data.y; 294 z = info->u.data.z; 295 break; 296 case MOUSE_BUTTON_EVENT: 297 x = y = z = 0; 298 if (info->u.event.value > 0) 299 mouse_status.button |= info->u.event.id; 300 else 301 mouse_status.button &= ~info->u.event.id; 302 break; 303 default: 304 return 0; 305 } 306 307 mouse_status.dx += x; 308 mouse_status.dy += y; 309 mouse_status.dz += z; 310 mouse_status.flags |= ((x || y || z) ? MOUSE_POSCHANGED : 0) 311 | (mouse_status.obutton ^ mouse_status.button); 312 if (mouse_status.flags == 0) 313 return 0; 314 315 if ((sysmouse_tty == NULL) || !(sysmouse_tty->t_state & TS_ISOPEN)) 316 return mouse_status.flags; 317 318 /* the first five bytes are compatible with MouseSystems' */ 319 buf[0] = MOUSE_MSC_SYNC 320 | butmap[mouse_status.button & MOUSE_STDBUTTONS]; 321 x = imax(imin(x, 255), -256); 322 buf[1] = x >> 1; 323 buf[3] = x - buf[1]; 324 y = -imax(imin(y, 255), -256); 325 buf[2] = y >> 1; 326 buf[4] = y - buf[2]; 327 for (i = 0; i < MOUSE_MSC_PACKETSIZE; ++i) 328 (*linesw[sysmouse_tty->t_line].l_rint)(buf[i], sysmouse_tty); 329 if (mouse_level >= 1) { 330 /* extended part */ 331 z = imax(imin(z, 127), -128); 332 buf[5] = (z >> 1) & 0x7f; 333 buf[6] = (z - (z >> 1)) & 0x7f; 334 /* buttons 4-10 */ 335 buf[7] = (~mouse_status.button >> 3) & 0x7f; 336 for (i = MOUSE_MSC_PACKETSIZE; i < MOUSE_SYS_PACKETSIZE; ++i) 337 (*linesw[sysmouse_tty->t_line].l_rint)(buf[i], 338 sysmouse_tty); 339 } 340 341 return mouse_status.flags; 342 } 343 344 #endif /* !SC_NO_SYSMOUSE */ 345