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 1.12 2006/09/10 01:26:35 dillon 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/priv.h> 37 #include <sys/tty.h> 38 #include <sys/kernel.h> 39 #include <sys/thread2.h> 40 41 #include <machine/console.h> 42 #include <machine/mouse.h> 43 44 #include "syscons.h" 45 46 #ifndef SC_NO_SYSMOUSE 47 48 #define CDEV_MAJOR 12 /* major number, shared with syscons */ 49 #define SC_MOUSE 128 /* minor number */ 50 51 static d_open_t smopen; 52 static d_close_t smclose; 53 static d_ioctl_t smioctl; 54 55 static struct dev_ops sm_ops = { 56 { "sysmouse", CDEV_MAJOR, D_TTY | D_KQFILTER }, 57 .d_open = smopen, 58 .d_close = smclose, 59 .d_read = ttyread, 60 .d_ioctl = smioctl, 61 .d_kqfilter = ttykqfilter, 62 .d_revoke = ttyrevoke 63 }; 64 65 /* local variables */ 66 static struct tty *sysmouse_tty; 67 static int mouse_level; /* sysmouse protocol level */ 68 static mousestatus_t mouse_status; 69 70 static void smstart(struct tty *tp); 71 static int smparam(struct tty *tp, struct termios *t); 72 73 static int 74 smopen(struct dev_open_args *ap) 75 { 76 cdev_t dev = ap->a_head.a_dev; 77 struct tty *tp; 78 79 DPRINTF(5, ("smopen: dev:%d,%d, vty:%d\n", 80 major(dev), minor(dev), SC_VTY(dev))); 81 82 #if 0 83 if (SC_VTY(dev) != SC_MOUSE) 84 return ENXIO; 85 #endif 86 87 tp = dev->si_tty = ttymalloc(dev->si_tty); 88 if (!(tp->t_state & TS_ISOPEN)) { 89 sysmouse_tty = tp; 90 tp->t_oproc = smstart; 91 tp->t_param = smparam; 92 tp->t_stop = nottystop; 93 tp->t_dev = dev; 94 ttychars(tp); 95 tp->t_iflag = 0; 96 tp->t_oflag = 0; 97 tp->t_lflag = 0; 98 tp->t_cflag = TTYDEF_CFLAG; 99 tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; 100 smparam(tp, &tp->t_termios); 101 (*linesw[tp->t_line].l_modem)(tp, 1); 102 } else if (tp->t_state & TS_XCLUDE && priv_check_cred(ap->a_cred, PRIV_ROOT, 0)) { 103 return EBUSY; 104 } 105 106 return (*linesw[tp->t_line].l_open)(dev, tp); 107 } 108 109 static int 110 smclose(struct dev_close_args *ap) 111 { 112 cdev_t dev = ap->a_head.a_dev; 113 struct tty *tp; 114 115 tp = dev->si_tty; 116 crit_enter(); 117 mouse_level = 0; 118 (*linesw[tp->t_line].l_close)(tp, ap->a_fflag); 119 ttyclose(tp); 120 crit_exit(); 121 122 return 0; 123 } 124 125 static void 126 smstart(struct tty *tp) 127 { 128 struct clist *rbp; 129 u_char buf[PCBURST]; 130 131 crit_enter(); 132 if (!(tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))) { 133 tp->t_state |= TS_BUSY; 134 rbp = &tp->t_outq; 135 while (rbp->c_cc) 136 q_to_b(rbp, buf, PCBURST); 137 tp->t_state &= ~TS_BUSY; 138 ttwwakeup(tp); 139 } 140 crit_exit(); 141 } 142 143 static int 144 smparam(struct tty *tp, struct termios *t) 145 { 146 tp->t_ispeed = t->c_ispeed; 147 tp->t_ospeed = t->c_ospeed; 148 tp->t_cflag = t->c_cflag; 149 return 0; 150 } 151 152 static int 153 smioctl(struct dev_ioctl_args *ap) 154 { 155 cdev_t dev = ap->a_head.a_dev; 156 struct tty *tp; 157 mousehw_t *hw; 158 mousemode_t *mode; 159 int error; 160 161 tp = dev->si_tty; 162 163 switch (ap->a_cmd) { 164 case MOUSE_GETHWINFO: /* get device information */ 165 hw = (mousehw_t *)ap->a_data; 166 hw->buttons = 10; /* XXX unknown */ 167 hw->iftype = MOUSE_IF_SYSMOUSE; 168 hw->type = MOUSE_MOUSE; 169 hw->model = MOUSE_MODEL_GENERIC; 170 hw->hwid = 0; 171 return 0; 172 173 case MOUSE_GETMODE: /* get protocol/mode */ 174 mode = (mousemode_t *)ap->a_data; 175 mode->level = mouse_level; 176 switch (mode->level) { 177 case 0: /* emulate MouseSystems protocol */ 178 mode->protocol = MOUSE_PROTO_MSC; 179 mode->rate = -1; /* unknown */ 180 mode->resolution = -1; /* unknown */ 181 mode->accelfactor = 0; /* disabled */ 182 mode->packetsize = MOUSE_MSC_PACKETSIZE; 183 mode->syncmask[0] = MOUSE_MSC_SYNCMASK; 184 mode->syncmask[1] = MOUSE_MSC_SYNC; 185 break; 186 187 case 1: /* sysmouse protocol */ 188 mode->protocol = MOUSE_PROTO_SYSMOUSE; 189 mode->rate = -1; 190 mode->resolution = -1; 191 mode->accelfactor = 0; 192 mode->packetsize = MOUSE_SYS_PACKETSIZE; 193 mode->syncmask[0] = MOUSE_SYS_SYNCMASK; 194 mode->syncmask[1] = MOUSE_SYS_SYNC; 195 break; 196 } 197 return 0; 198 199 case MOUSE_SETMODE: /* set protocol/mode */ 200 mode = (mousemode_t *)ap->a_data; 201 if (mode->level == -1) 202 ; /* don't change the current setting */ 203 else if ((mode->level < 0) || (mode->level > 1)) 204 return EINVAL; 205 else 206 mouse_level = mode->level; 207 return 0; 208 209 case MOUSE_GETLEVEL: /* get operation level */ 210 *(int *)ap->a_data = mouse_level; 211 return 0; 212 213 case MOUSE_SETLEVEL: /* set operation level */ 214 if ((*(int *)ap->a_data < 0) || (*(int *)ap->a_data > 1)) 215 return EINVAL; 216 mouse_level = *(int *)ap->a_data; 217 return 0; 218 219 case MOUSE_GETSTATUS: /* get accumulated mouse events */ 220 crit_enter(); 221 *(mousestatus_t *)ap->a_data = mouse_status; 222 mouse_status.flags = 0; 223 mouse_status.obutton = mouse_status.button; 224 mouse_status.dx = 0; 225 mouse_status.dy = 0; 226 mouse_status.dz = 0; 227 crit_exit(); 228 return 0; 229 230 #if notyet 231 case MOUSE_GETVARS: /* get internal mouse variables */ 232 case MOUSE_SETVARS: /* set internal mouse variables */ 233 return ENODEV; 234 #endif 235 236 case MOUSE_READSTATE: /* read status from the device */ 237 case MOUSE_READDATA: /* read data from the device */ 238 return ENODEV; 239 } 240 241 error = (*linesw[tp->t_line].l_ioctl)(tp, ap->a_cmd, ap->a_data, ap->a_fflag, ap->a_cred); 242 if (error != ENOIOCTL) 243 return error; 244 error = ttioctl(tp, ap->a_cmd, ap->a_data, ap->a_fflag); 245 if (error != ENOIOCTL) 246 return error; 247 return ENOTTY; 248 } 249 250 static void 251 sm_attach_mouse(void *unused) 252 { 253 cdev_t dev; 254 255 dev = make_dev(&sm_ops, SC_MOUSE, UID_ROOT, GID_WHEEL, 256 0600, "sysmouse"); 257 /* sysmouse doesn't have scr_stat */ 258 } 259 260 SYSINIT(sysmouse, SI_SUB_DRIVERS, SI_ORDER_MIDDLE + CDEV_MAJOR, 261 sm_attach_mouse, NULL) 262 263 int 264 sysmouse_event(mouse_info_t *info) 265 { 266 /* MOUSE_BUTTON?DOWN -> MOUSE_MSC_BUTTON?UP */ 267 static int butmap[8] = { 268 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 269 MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 270 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON3UP, 271 MOUSE_MSC_BUTTON3UP, 272 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP, 273 MOUSE_MSC_BUTTON2UP, 274 MOUSE_MSC_BUTTON1UP, 275 0, 276 }; 277 u_char buf[8]; 278 int x, y, z; 279 int i; 280 281 switch (info->operation) { 282 case MOUSE_ACTION: 283 mouse_status.button = info->u.data.buttons; 284 /* FALL THROUGH */ 285 case MOUSE_MOTION_EVENT: 286 x = info->u.data.x; 287 y = info->u.data.y; 288 z = info->u.data.z; 289 break; 290 case MOUSE_BUTTON_EVENT: 291 x = y = z = 0; 292 if (info->u.event.value > 0) 293 mouse_status.button |= info->u.event.id; 294 else 295 mouse_status.button &= ~info->u.event.id; 296 break; 297 default: 298 return 0; 299 } 300 301 mouse_status.dx += x; 302 mouse_status.dy += y; 303 mouse_status.dz += z; 304 mouse_status.flags |= ((x || y || z) ? MOUSE_POSCHANGED : 0) 305 | (mouse_status.obutton ^ mouse_status.button); 306 if (mouse_status.flags == 0) 307 return 0; 308 309 if ((sysmouse_tty == NULL) || !(sysmouse_tty->t_state & TS_ISOPEN)) 310 return mouse_status.flags; 311 312 /* the first five bytes are compatible with MouseSystems' */ 313 buf[0] = MOUSE_MSC_SYNC 314 | butmap[mouse_status.button & MOUSE_STDBUTTONS]; 315 x = imax(imin(x, 255), -256); 316 buf[1] = x >> 1; 317 buf[3] = x - buf[1]; 318 y = -imax(imin(y, 255), -256); 319 buf[2] = y >> 1; 320 buf[4] = y - buf[2]; 321 for (i = 0; i < MOUSE_MSC_PACKETSIZE; ++i) 322 (*linesw[sysmouse_tty->t_line].l_rint)(buf[i], sysmouse_tty); 323 if (mouse_level >= 1) { 324 /* extended part */ 325 z = imax(imin(z, 127), -128); 326 buf[5] = (z >> 1) & 0x7f; 327 buf[6] = (z - (z >> 1)) & 0x7f; 328 /* buttons 4-10 */ 329 buf[7] = (~mouse_status.button >> 3) & 0x7f; 330 for (i = MOUSE_MSC_PACKETSIZE; i < MOUSE_SYS_PACKETSIZE; ++i) 331 (*linesw[sysmouse_tty->t_line].l_rint)(buf[i], 332 sysmouse_tty); 333 } 334 335 return mouse_status.flags; 336 } 337 338 #endif /* !SC_NO_SYSMOUSE */ 339