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