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_poll = ttypoll, 62 .d_kqfilter = ttykqfilter, 63 .d_revoke = ttyrevoke 64 }; 65 66 /* local variables */ 67 static struct tty *sysmouse_tty; 68 static int mouse_level; /* sysmouse protocol level */ 69 static mousestatus_t mouse_status; 70 71 static void smstart(struct tty *tp); 72 static int smparam(struct tty *tp, struct termios *t); 73 74 static int 75 smopen(struct dev_open_args *ap) 76 { 77 cdev_t dev = ap->a_head.a_dev; 78 struct tty *tp; 79 80 DPRINTF(5, ("smopen: dev:%d,%d, vty:%d\n", 81 major(dev), minor(dev), SC_VTY(dev))); 82 83 #if 0 84 if (SC_VTY(dev) != SC_MOUSE) 85 return ENXIO; 86 #endif 87 88 tp = dev->si_tty = ttymalloc(dev->si_tty); 89 if (!(tp->t_state & TS_ISOPEN)) { 90 sysmouse_tty = tp; 91 tp->t_oproc = smstart; 92 tp->t_param = smparam; 93 tp->t_stop = nottystop; 94 tp->t_dev = dev; 95 ttychars(tp); 96 tp->t_iflag = 0; 97 tp->t_oflag = 0; 98 tp->t_lflag = 0; 99 tp->t_cflag = TTYDEF_CFLAG; 100 tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; 101 smparam(tp, &tp->t_termios); 102 (*linesw[tp->t_line].l_modem)(tp, 1); 103 } else if (tp->t_state & TS_XCLUDE && priv_check_cred(ap->a_cred, PRIV_ROOT, 0)) { 104 return EBUSY; 105 } 106 107 return (*linesw[tp->t_line].l_open)(dev, tp); 108 } 109 110 static int 111 smclose(struct dev_close_args *ap) 112 { 113 cdev_t dev = ap->a_head.a_dev; 114 struct tty *tp; 115 116 tp = dev->si_tty; 117 crit_enter(); 118 mouse_level = 0; 119 (*linesw[tp->t_line].l_close)(tp, ap->a_fflag); 120 ttyclose(tp); 121 crit_exit(); 122 123 return 0; 124 } 125 126 static void 127 smstart(struct tty *tp) 128 { 129 struct clist *rbp; 130 u_char buf[PCBURST]; 131 132 crit_enter(); 133 if (!(tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))) { 134 tp->t_state |= TS_BUSY; 135 rbp = &tp->t_outq; 136 while (rbp->c_cc) 137 q_to_b(rbp, buf, PCBURST); 138 tp->t_state &= ~TS_BUSY; 139 ttwwakeup(tp); 140 } 141 crit_exit(); 142 } 143 144 static int 145 smparam(struct tty *tp, struct termios *t) 146 { 147 tp->t_ispeed = t->c_ispeed; 148 tp->t_ospeed = t->c_ospeed; 149 tp->t_cflag = t->c_cflag; 150 return 0; 151 } 152 153 static int 154 smioctl(struct dev_ioctl_args *ap) 155 { 156 cdev_t dev = ap->a_head.a_dev; 157 struct tty *tp; 158 mousehw_t *hw; 159 mousemode_t *mode; 160 int error; 161 162 tp = dev->si_tty; 163 164 switch (ap->a_cmd) { 165 case MOUSE_GETHWINFO: /* get device information */ 166 hw = (mousehw_t *)ap->a_data; 167 hw->buttons = 10; /* XXX unknown */ 168 hw->iftype = MOUSE_IF_SYSMOUSE; 169 hw->type = MOUSE_MOUSE; 170 hw->model = MOUSE_MODEL_GENERIC; 171 hw->hwid = 0; 172 return 0; 173 174 case MOUSE_GETMODE: /* get protocol/mode */ 175 mode = (mousemode_t *)ap->a_data; 176 mode->level = mouse_level; 177 switch (mode->level) { 178 case 0: /* emulate MouseSystems protocol */ 179 mode->protocol = MOUSE_PROTO_MSC; 180 mode->rate = -1; /* unknown */ 181 mode->resolution = -1; /* unknown */ 182 mode->accelfactor = 0; /* disabled */ 183 mode->packetsize = MOUSE_MSC_PACKETSIZE; 184 mode->syncmask[0] = MOUSE_MSC_SYNCMASK; 185 mode->syncmask[1] = MOUSE_MSC_SYNC; 186 break; 187 188 case 1: /* sysmouse protocol */ 189 mode->protocol = MOUSE_PROTO_SYSMOUSE; 190 mode->rate = -1; 191 mode->resolution = -1; 192 mode->accelfactor = 0; 193 mode->packetsize = MOUSE_SYS_PACKETSIZE; 194 mode->syncmask[0] = MOUSE_SYS_SYNCMASK; 195 mode->syncmask[1] = MOUSE_SYS_SYNC; 196 break; 197 } 198 return 0; 199 200 case MOUSE_SETMODE: /* set protocol/mode */ 201 mode = (mousemode_t *)ap->a_data; 202 if (mode->level == -1) 203 ; /* don't change the current setting */ 204 else if ((mode->level < 0) || (mode->level > 1)) 205 return EINVAL; 206 else 207 mouse_level = mode->level; 208 return 0; 209 210 case MOUSE_GETLEVEL: /* get operation level */ 211 *(int *)ap->a_data = mouse_level; 212 return 0; 213 214 case MOUSE_SETLEVEL: /* set operation level */ 215 if ((*(int *)ap->a_data < 0) || (*(int *)ap->a_data > 1)) 216 return EINVAL; 217 mouse_level = *(int *)ap->a_data; 218 return 0; 219 220 case MOUSE_GETSTATUS: /* get accumulated mouse events */ 221 crit_enter(); 222 *(mousestatus_t *)ap->a_data = mouse_status; 223 mouse_status.flags = 0; 224 mouse_status.obutton = mouse_status.button; 225 mouse_status.dx = 0; 226 mouse_status.dy = 0; 227 mouse_status.dz = 0; 228 crit_exit(); 229 return 0; 230 231 #if notyet 232 case MOUSE_GETVARS: /* get internal mouse variables */ 233 case MOUSE_SETVARS: /* set internal mouse variables */ 234 return ENODEV; 235 #endif 236 237 case MOUSE_READSTATE: /* read status from the device */ 238 case MOUSE_READDATA: /* read data from the device */ 239 return ENODEV; 240 } 241 242 error = (*linesw[tp->t_line].l_ioctl)(tp, ap->a_cmd, ap->a_data, ap->a_fflag, ap->a_cred); 243 if (error != ENOIOCTL) 244 return error; 245 error = ttioctl(tp, ap->a_cmd, ap->a_data, ap->a_fflag); 246 if (error != ENOIOCTL) 247 return error; 248 return ENOTTY; 249 } 250 251 static void 252 sm_attach_mouse(void *unused) 253 { 254 cdev_t dev; 255 256 dev = make_dev(&sm_ops, SC_MOUSE, UID_ROOT, GID_WHEEL, 257 0600, "sysmouse"); 258 /* sysmouse doesn't have scr_stat */ 259 } 260 261 SYSINIT(sysmouse, SI_SUB_DRIVERS, SI_ORDER_MIDDLE + CDEV_MAJOR, 262 sm_attach_mouse, NULL) 263 264 int 265 sysmouse_event(mouse_info_t *info) 266 { 267 /* MOUSE_BUTTON?DOWN -> MOUSE_MSC_BUTTON?UP */ 268 static int butmap[8] = { 269 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 270 MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 271 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON3UP, 272 MOUSE_MSC_BUTTON3UP, 273 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP, 274 MOUSE_MSC_BUTTON2UP, 275 MOUSE_MSC_BUTTON1UP, 276 0, 277 }; 278 u_char buf[8]; 279 int x, y, z; 280 int i; 281 282 switch (info->operation) { 283 case MOUSE_ACTION: 284 mouse_status.button = info->u.data.buttons; 285 /* FALL THROUGH */ 286 case MOUSE_MOTION_EVENT: 287 x = info->u.data.x; 288 y = info->u.data.y; 289 z = info->u.data.z; 290 break; 291 case MOUSE_BUTTON_EVENT: 292 x = y = z = 0; 293 if (info->u.event.value > 0) 294 mouse_status.button |= info->u.event.id; 295 else 296 mouse_status.button &= ~info->u.event.id; 297 break; 298 default: 299 return 0; 300 } 301 302 mouse_status.dx += x; 303 mouse_status.dy += y; 304 mouse_status.dz += z; 305 mouse_status.flags |= ((x || y || z) ? MOUSE_POSCHANGED : 0) 306 | (mouse_status.obutton ^ mouse_status.button); 307 if (mouse_status.flags == 0) 308 return 0; 309 310 if ((sysmouse_tty == NULL) || !(sysmouse_tty->t_state & TS_ISOPEN)) 311 return mouse_status.flags; 312 313 /* the first five bytes are compatible with MouseSystems' */ 314 buf[0] = MOUSE_MSC_SYNC 315 | butmap[mouse_status.button & MOUSE_STDBUTTONS]; 316 x = imax(imin(x, 255), -256); 317 buf[1] = x >> 1; 318 buf[3] = x - buf[1]; 319 y = -imax(imin(y, 255), -256); 320 buf[2] = y >> 1; 321 buf[4] = y - buf[2]; 322 for (i = 0; i < MOUSE_MSC_PACKETSIZE; ++i) 323 (*linesw[sysmouse_tty->t_line].l_rint)(buf[i], sysmouse_tty); 324 if (mouse_level >= 1) { 325 /* extended part */ 326 z = imax(imin(z, 127), -128); 327 buf[5] = (z >> 1) & 0x7f; 328 buf[6] = (z - (z >> 1)) & 0x7f; 329 /* buttons 4-10 */ 330 buf[7] = (~mouse_status.button >> 3) & 0x7f; 331 for (i = MOUSE_MSC_PACKETSIZE; i < MOUSE_SYS_PACKETSIZE; ++i) 332 (*linesw[sysmouse_tty->t_line].l_rint)(buf[i], 333 sysmouse_tty); 334 } 335 336 return mouse_status.flags; 337 } 338 339 #endif /* !SC_NO_SYSMOUSE */ 340