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 }, 57 .d_open = smopen, 58 .d_close = smclose, 59 .d_read = ttyread, 60 .d_ioctl = smioctl, 61 .d_poll = ttypoll, 62 }; 63 64 /* local variables */ 65 static struct tty *sysmouse_tty; 66 static int mouse_level; /* sysmouse protocol level */ 67 static mousestatus_t mouse_status; 68 69 static void smstart(struct tty *tp); 70 static int smparam(struct tty *tp, struct termios *t); 71 72 static int 73 smopen(struct dev_open_args *ap) 74 { 75 cdev_t dev = ap->a_head.a_dev; 76 struct tty *tp; 77 78 DPRINTF(5, ("smopen: dev:%d,%d, vty:%d\n", 79 major(dev), minor(dev), SC_VTY(dev))); 80 81 #if 0 82 if (SC_VTY(dev) != SC_MOUSE) 83 return ENXIO; 84 #endif 85 86 tp = dev->si_tty = ttymalloc(dev->si_tty); 87 if (!(tp->t_state & TS_ISOPEN)) { 88 sysmouse_tty = tp; 89 tp->t_oproc = smstart; 90 tp->t_param = smparam; 91 tp->t_stop = nottystop; 92 tp->t_dev = dev; 93 ttychars(tp); 94 tp->t_iflag = 0; 95 tp->t_oflag = 0; 96 tp->t_lflag = 0; 97 tp->t_cflag = TTYDEF_CFLAG; 98 tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; 99 smparam(tp, &tp->t_termios); 100 (*linesw[tp->t_line].l_modem)(tp, 1); 101 } else if (tp->t_state & TS_XCLUDE && priv_check_cred(ap->a_cred, PRIV_ROOT, 0)) { 102 return EBUSY; 103 } 104 105 return (*linesw[tp->t_line].l_open)(dev, tp); 106 } 107 108 static int 109 smclose(struct dev_close_args *ap) 110 { 111 cdev_t dev = ap->a_head.a_dev; 112 struct tty *tp; 113 114 tp = dev->si_tty; 115 crit_enter(); 116 mouse_level = 0; 117 (*linesw[tp->t_line].l_close)(tp, ap->a_fflag); 118 ttyclose(tp); 119 crit_exit(); 120 121 return 0; 122 } 123 124 static void 125 smstart(struct tty *tp) 126 { 127 struct clist *rbp; 128 u_char buf[PCBURST]; 129 130 crit_enter(); 131 if (!(tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))) { 132 tp->t_state |= TS_BUSY; 133 rbp = &tp->t_outq; 134 while (rbp->c_cc) 135 q_to_b(rbp, buf, PCBURST); 136 tp->t_state &= ~TS_BUSY; 137 ttwwakeup(tp); 138 } 139 crit_exit(); 140 } 141 142 static int 143 smparam(struct tty *tp, struct termios *t) 144 { 145 tp->t_ispeed = t->c_ispeed; 146 tp->t_ospeed = t->c_ospeed; 147 tp->t_cflag = t->c_cflag; 148 return 0; 149 } 150 151 static int 152 smioctl(struct dev_ioctl_args *ap) 153 { 154 cdev_t dev = ap->a_head.a_dev; 155 struct tty *tp; 156 mousehw_t *hw; 157 mousemode_t *mode; 158 int error; 159 160 tp = dev->si_tty; 161 162 switch (ap->a_cmd) { 163 case MOUSE_GETHWINFO: /* get device information */ 164 hw = (mousehw_t *)ap->a_data; 165 hw->buttons = 10; /* XXX unknown */ 166 hw->iftype = MOUSE_IF_SYSMOUSE; 167 hw->type = MOUSE_MOUSE; 168 hw->model = MOUSE_MODEL_GENERIC; 169 hw->hwid = 0; 170 return 0; 171 172 case MOUSE_GETMODE: /* get protocol/mode */ 173 mode = (mousemode_t *)ap->a_data; 174 mode->level = mouse_level; 175 switch (mode->level) { 176 case 0: /* emulate MouseSystems protocol */ 177 mode->protocol = MOUSE_PROTO_MSC; 178 mode->rate = -1; /* unknown */ 179 mode->resolution = -1; /* unknown */ 180 mode->accelfactor = 0; /* disabled */ 181 mode->packetsize = MOUSE_MSC_PACKETSIZE; 182 mode->syncmask[0] = MOUSE_MSC_SYNCMASK; 183 mode->syncmask[1] = MOUSE_MSC_SYNC; 184 break; 185 186 case 1: /* sysmouse protocol */ 187 mode->protocol = MOUSE_PROTO_SYSMOUSE; 188 mode->rate = -1; 189 mode->resolution = -1; 190 mode->accelfactor = 0; 191 mode->packetsize = MOUSE_SYS_PACKETSIZE; 192 mode->syncmask[0] = MOUSE_SYS_SYNCMASK; 193 mode->syncmask[1] = MOUSE_SYS_SYNC; 194 break; 195 } 196 return 0; 197 198 case MOUSE_SETMODE: /* set protocol/mode */ 199 mode = (mousemode_t *)ap->a_data; 200 if (mode->level == -1) 201 ; /* don't change the current setting */ 202 else if ((mode->level < 0) || (mode->level > 1)) 203 return EINVAL; 204 else 205 mouse_level = mode->level; 206 return 0; 207 208 case MOUSE_GETLEVEL: /* get operation level */ 209 *(int *)ap->a_data = mouse_level; 210 return 0; 211 212 case MOUSE_SETLEVEL: /* set operation level */ 213 if ((*(int *)ap->a_data < 0) || (*(int *)ap->a_data > 1)) 214 return EINVAL; 215 mouse_level = *(int *)ap->a_data; 216 return 0; 217 218 case MOUSE_GETSTATUS: /* get accumulated mouse events */ 219 crit_enter(); 220 *(mousestatus_t *)ap->a_data = mouse_status; 221 mouse_status.flags = 0; 222 mouse_status.obutton = mouse_status.button; 223 mouse_status.dx = 0; 224 mouse_status.dy = 0; 225 mouse_status.dz = 0; 226 crit_exit(); 227 return 0; 228 229 #if notyet 230 case MOUSE_GETVARS: /* get internal mouse variables */ 231 case MOUSE_SETVARS: /* set internal mouse variables */ 232 return ENODEV; 233 #endif 234 235 case MOUSE_READSTATE: /* read status from the device */ 236 case MOUSE_READDATA: /* read data from the device */ 237 return ENODEV; 238 } 239 240 error = (*linesw[tp->t_line].l_ioctl)(tp, ap->a_cmd, ap->a_data, ap->a_fflag, ap->a_cred); 241 if (error != ENOIOCTL) 242 return error; 243 error = ttioctl(tp, ap->a_cmd, ap->a_data, ap->a_fflag); 244 if (error != ENOIOCTL) 245 return error; 246 return ENOTTY; 247 } 248 249 static void 250 sm_attach_mouse(void *unused) 251 { 252 cdev_t dev; 253 254 dev_ops_add(&sm_ops, -1, SC_MOUSE); 255 dev = make_dev(&sm_ops, SC_MOUSE, UID_ROOT, GID_WHEEL, 0600, 256 "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