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