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_syscons.h" 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/conf.h> 36 #include <sys/priv.h> 37 #include <sys/tty.h> 38 #include <sys/kernel.h> 39 #include <sys/consio.h> 40 #include <sys/mouse.h> 41 42 #include <dev/syscons/syscons.h> 43 44 #ifndef SC_NO_SYSMOUSE 45 46 #define SC_MOUSE 128 /* minor number */ 47 48 static d_open_t smopen; 49 static d_close_t smclose; 50 static d_ioctl_t smioctl; 51 52 static struct cdevsw sm_cdevsw = { 53 .d_version = D_VERSION, 54 .d_open = smopen, 55 .d_close = smclose, 56 .d_ioctl = smioctl, 57 .d_name = "sysmouse", 58 .d_flags = D_TTY | D_NEEDGIANT, 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(struct cdev *dev, int flag, int mode, struct thread *td) 71 { 72 struct tty *tp; 73 74 DPRINTF(5, ("smopen: dev:%s, vty:%d\n", 75 devtoname(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; 83 if (!(tp->t_state & TS_ISOPEN)) { 84 ttyinitmode(tp, 0, 0); 85 smparam(tp, &tp->t_termios); 86 ttyld_modem(tp, 1); 87 } else if (tp->t_state & TS_XCLUDE && 88 priv_check(td, PRIV_TTY_EXCLUSIVE)) { 89 return EBUSY; 90 } 91 92 return ttyld_open(tp, dev); 93 } 94 95 static int 96 smclose(struct cdev *dev, int flag, int mode, struct thread *td) 97 { 98 struct tty *tp; 99 int s; 100 101 tp = dev->si_tty; 102 s = spltty(); 103 mouse_level = 0; 104 ttyld_close(tp, flag); 105 tty_close(tp); 106 splx(s); 107 108 return 0; 109 } 110 111 static void 112 smstart(struct tty *tp) 113 { 114 struct clist *rbp; 115 u_char buf[PCBURST]; 116 int s; 117 118 s = spltty(); 119 if (!(tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))) { 120 tp->t_state |= TS_BUSY; 121 rbp = &tp->t_outq; 122 while (rbp->c_cc) 123 q_to_b(rbp, buf, PCBURST); 124 tp->t_state &= ~TS_BUSY; 125 ttwwakeup(tp); 126 } 127 splx(s); 128 } 129 130 static int 131 smparam(struct tty *tp, struct termios *t) 132 { 133 tp->t_ispeed = t->c_ispeed; 134 tp->t_ospeed = t->c_ospeed; 135 tp->t_cflag = t->c_cflag; 136 return 0; 137 } 138 139 static int 140 smioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td) 141 { 142 struct tty *tp; 143 mousehw_t *hw; 144 mousemode_t *mode; 145 int s; 146 147 tp = dev->si_tty; 148 switch (cmd) { 149 150 case MOUSE_GETHWINFO: /* get device information */ 151 hw = (mousehw_t *)data; 152 hw->buttons = 10; /* XXX unknown */ 153 hw->iftype = MOUSE_IF_SYSMOUSE; 154 hw->type = MOUSE_MOUSE; 155 hw->model = MOUSE_MODEL_GENERIC; 156 hw->hwid = 0; 157 return 0; 158 159 case MOUSE_GETMODE: /* get protocol/mode */ 160 mode = (mousemode_t *)data; 161 mode->level = mouse_level; 162 switch (mode->level) { 163 case 0: /* emulate MouseSystems protocol */ 164 mode->protocol = MOUSE_PROTO_MSC; 165 mode->rate = -1; /* unknown */ 166 mode->resolution = -1; /* unknown */ 167 mode->accelfactor = 0; /* disabled */ 168 mode->packetsize = MOUSE_MSC_PACKETSIZE; 169 mode->syncmask[0] = MOUSE_MSC_SYNCMASK; 170 mode->syncmask[1] = MOUSE_MSC_SYNC; 171 break; 172 173 case 1: /* sysmouse protocol */ 174 mode->protocol = MOUSE_PROTO_SYSMOUSE; 175 mode->rate = -1; 176 mode->resolution = -1; 177 mode->accelfactor = 0; 178 mode->packetsize = MOUSE_SYS_PACKETSIZE; 179 mode->syncmask[0] = MOUSE_SYS_SYNCMASK; 180 mode->syncmask[1] = MOUSE_SYS_SYNC; 181 break; 182 } 183 return 0; 184 185 case MOUSE_SETMODE: /* set protocol/mode */ 186 mode = (mousemode_t *)data; 187 if (mode->level == -1) 188 ; /* don't change the current setting */ 189 else if ((mode->level < 0) || (mode->level > 1)) 190 return EINVAL; 191 else 192 mouse_level = mode->level; 193 return 0; 194 195 case MOUSE_GETLEVEL: /* get operation level */ 196 *(int *)data = mouse_level; 197 return 0; 198 199 case MOUSE_SETLEVEL: /* set operation level */ 200 if ((*(int *)data < 0) || (*(int *)data > 1)) 201 return EINVAL; 202 mouse_level = *(int *)data; 203 return 0; 204 205 case MOUSE_GETSTATUS: /* get accumulated mouse events */ 206 s = spltty(); 207 *(mousestatus_t *)data = mouse_status; 208 mouse_status.flags = 0; 209 mouse_status.obutton = mouse_status.button; 210 mouse_status.dx = 0; 211 mouse_status.dy = 0; 212 mouse_status.dz = 0; 213 splx(s); 214 return 0; 215 216 #ifdef notyet 217 case MOUSE_GETVARS: /* get internal mouse variables */ 218 case MOUSE_SETVARS: /* set internal mouse variables */ 219 return ENODEV; 220 #endif 221 222 case MOUSE_READSTATE: /* read status from the device */ 223 case MOUSE_READDATA: /* read data from the device */ 224 return ENODEV; 225 } 226 227 return(ttyioctl(dev, cmd, data, flag, td)); 228 } 229 230 static void 231 sm_attach_mouse(void *unused) 232 { 233 struct cdev *dev; 234 struct tty *tp; 235 236 dev = make_dev(&sm_cdevsw, SC_MOUSE, UID_ROOT, GID_WHEEL, 0600, 237 "sysmouse"); 238 dev->si_tty = tp = ttyalloc(); 239 tp->t_oproc = smstart; 240 tp->t_param = smparam; 241 tp->t_stop = nottystop; 242 tp->t_dev = dev; 243 244 sysmouse_tty = tp; 245 /* sysmouse doesn't have scr_stat */ 246 } 247 248 SYSINIT(sysmouse, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sm_attach_mouse, NULL) 249 250 int 251 sysmouse_event(mouse_info_t *info) 252 { 253 /* MOUSE_BUTTON?DOWN -> MOUSE_MSC_BUTTON?UP */ 254 static int butmap[8] = { 255 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 256 MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 257 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON3UP, 258 MOUSE_MSC_BUTTON3UP, 259 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP, 260 MOUSE_MSC_BUTTON2UP, 261 MOUSE_MSC_BUTTON1UP, 262 0, 263 }; 264 u_char buf[8]; 265 int x, y, z; 266 int i; 267 268 switch (info->operation) { 269 case MOUSE_ACTION: 270 mouse_status.button = info->u.data.buttons; 271 /* FALL THROUGH */ 272 case MOUSE_MOTION_EVENT: 273 x = info->u.data.x; 274 y = info->u.data.y; 275 z = info->u.data.z; 276 break; 277 case MOUSE_BUTTON_EVENT: 278 x = y = z = 0; 279 if (info->u.event.value > 0) 280 mouse_status.button |= info->u.event.id; 281 else 282 mouse_status.button &= ~info->u.event.id; 283 break; 284 default: 285 return 0; 286 } 287 288 mouse_status.dx += x; 289 mouse_status.dy += y; 290 mouse_status.dz += z; 291 mouse_status.flags |= ((x || y || z) ? MOUSE_POSCHANGED : 0) 292 | (mouse_status.obutton ^ mouse_status.button); 293 if (mouse_status.flags == 0) 294 return 0; 295 296 if ((sysmouse_tty == NULL) || !(sysmouse_tty->t_state & TS_ISOPEN)) 297 return mouse_status.flags; 298 299 /* the first five bytes are compatible with MouseSystems' */ 300 buf[0] = MOUSE_MSC_SYNC 301 | butmap[mouse_status.button & MOUSE_STDBUTTONS]; 302 x = imax(imin(x, 255), -256); 303 buf[1] = x >> 1; 304 buf[3] = x - buf[1]; 305 y = -imax(imin(y, 255), -256); 306 buf[2] = y >> 1; 307 buf[4] = y - buf[2]; 308 for (i = 0; i < MOUSE_MSC_PACKETSIZE; ++i) 309 ttyld_rint(sysmouse_tty, buf[i]); 310 if (mouse_level >= 1) { 311 /* extended part */ 312 z = imax(imin(z, 127), -128); 313 buf[5] = (z >> 1) & 0x7f; 314 buf[6] = (z - (z >> 1)) & 0x7f; 315 /* buttons 4-10 */ 316 buf[7] = (~mouse_status.button >> 3) & 0x7f; 317 for (i = MOUSE_MSC_PACKETSIZE; i < MOUSE_SYS_PACKETSIZE; ++i) 318 ttyld_rint(sysmouse_tty, buf[i]); 319 } 320 321 return mouse_status.flags; 322 } 323 324 #endif /* !SC_NO_SYSMOUSE */ 325