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/priv.h> 36 #include <sys/serial.h> 37 #include <sys/tty.h> 38 #include <sys/ttydefaults.h> 39 #include <sys/kernel.h> 40 #include <sys/consio.h> 41 #include <sys/mouse.h> 42 43 #include <dev/syscons/syscons.h> 44 45 #ifndef SC_NO_SYSMOUSE 46 47 /* local variables */ 48 static struct tty *sysmouse_tty; 49 static int mouse_level; /* sysmouse protocol level */ 50 static mousestatus_t mouse_status; 51 52 static void 53 smdev_close(struct tty *tp) 54 { 55 mouse_level = 0; 56 } 57 58 static int 59 smdev_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td) 60 { 61 mousehw_t *hw; 62 mousemode_t *mode; 63 64 switch (cmd) { 65 66 case MOUSE_GETHWINFO: /* get device information */ 67 hw = (mousehw_t *)data; 68 hw->buttons = 10; /* XXX unknown */ 69 hw->iftype = MOUSE_IF_SYSMOUSE; 70 hw->type = MOUSE_MOUSE; 71 hw->model = MOUSE_MODEL_GENERIC; 72 hw->hwid = 0; 73 return 0; 74 75 case MOUSE_GETMODE: /* get protocol/mode */ 76 mode = (mousemode_t *)data; 77 mode->level = mouse_level; 78 switch (mode->level) { 79 case 0: /* emulate MouseSystems protocol */ 80 mode->protocol = MOUSE_PROTO_MSC; 81 mode->rate = -1; /* unknown */ 82 mode->resolution = -1; /* unknown */ 83 mode->accelfactor = 0; /* disabled */ 84 mode->packetsize = MOUSE_MSC_PACKETSIZE; 85 mode->syncmask[0] = MOUSE_MSC_SYNCMASK; 86 mode->syncmask[1] = MOUSE_MSC_SYNC; 87 break; 88 89 case 1: /* sysmouse protocol */ 90 mode->protocol = MOUSE_PROTO_SYSMOUSE; 91 mode->rate = -1; 92 mode->resolution = -1; 93 mode->accelfactor = 0; 94 mode->packetsize = MOUSE_SYS_PACKETSIZE; 95 mode->syncmask[0] = MOUSE_SYS_SYNCMASK; 96 mode->syncmask[1] = MOUSE_SYS_SYNC; 97 break; 98 } 99 return 0; 100 101 case MOUSE_SETMODE: /* set protocol/mode */ 102 mode = (mousemode_t *)data; 103 if (mode->level == -1) 104 ; /* don't change the current setting */ 105 else if ((mode->level < 0) || (mode->level > 1)) 106 return EINVAL; 107 else 108 mouse_level = mode->level; 109 return 0; 110 111 case MOUSE_GETLEVEL: /* get operation level */ 112 *(int *)data = mouse_level; 113 return 0; 114 115 case MOUSE_SETLEVEL: /* set operation level */ 116 if ((*(int *)data < 0) || (*(int *)data > 1)) 117 return EINVAL; 118 mouse_level = *(int *)data; 119 return 0; 120 121 case MOUSE_GETSTATUS: /* get accumulated mouse events */ 122 *(mousestatus_t *)data = mouse_status; 123 mouse_status.flags = 0; 124 mouse_status.obutton = mouse_status.button; 125 mouse_status.dx = 0; 126 mouse_status.dy = 0; 127 mouse_status.dz = 0; 128 return 0; 129 130 #ifdef notyet 131 case MOUSE_GETVARS: /* get internal mouse variables */ 132 case MOUSE_SETVARS: /* set internal mouse variables */ 133 return ENODEV; 134 #endif 135 136 case MOUSE_READSTATE: /* read status from the device */ 137 case MOUSE_READDATA: /* read data from the device */ 138 return ENODEV; 139 } 140 141 return (ENOIOCTL); 142 } 143 144 static int 145 smdev_param(struct tty *tp, struct termios *t) 146 { 147 148 /* 149 * Set the output baud rate to zero. The mouse device supports 150 * no output, so we don't want to waste buffers. 151 */ 152 t->c_ispeed = TTYDEF_SPEED; 153 t->c_ospeed = B0; 154 155 return (0); 156 } 157 158 static struct ttydevsw smdev_ttydevsw = { 159 .tsw_flags = TF_NOPREFIX, 160 .tsw_close = smdev_close, 161 .tsw_ioctl = smdev_ioctl, 162 .tsw_param = smdev_param, 163 }; 164 165 static void 166 sm_attach_mouse(void *unused) 167 { 168 sysmouse_tty = tty_alloc(&smdev_ttydevsw, NULL); 169 tty_makedev(sysmouse_tty, NULL, "sysmouse"); 170 } 171 172 SYSINIT(sysmouse, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sm_attach_mouse, NULL); 173 174 int 175 sysmouse_event(mouse_info_t *info) 176 { 177 /* MOUSE_BUTTON?DOWN -> MOUSE_MSC_BUTTON?UP */ 178 static int butmap[8] = { 179 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 180 MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 181 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON3UP, 182 MOUSE_MSC_BUTTON3UP, 183 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP, 184 MOUSE_MSC_BUTTON2UP, 185 MOUSE_MSC_BUTTON1UP, 186 0, 187 }; 188 u_char buf[8]; 189 int x, y, z; 190 int i, flags = 0; 191 192 tty_lock(sysmouse_tty); 193 194 switch (info->operation) { 195 case MOUSE_ACTION: 196 mouse_status.button = info->u.data.buttons; 197 /* FALL THROUGH */ 198 case MOUSE_MOTION_EVENT: 199 x = info->u.data.x; 200 y = info->u.data.y; 201 z = info->u.data.z; 202 break; 203 case MOUSE_BUTTON_EVENT: 204 x = y = z = 0; 205 if (info->u.event.value > 0) 206 mouse_status.button |= info->u.event.id; 207 else 208 mouse_status.button &= ~info->u.event.id; 209 break; 210 default: 211 goto done; 212 } 213 214 mouse_status.dx += x; 215 mouse_status.dy += y; 216 mouse_status.dz += z; 217 mouse_status.flags |= ((x || y || z) ? MOUSE_POSCHANGED : 0) 218 | (mouse_status.obutton ^ mouse_status.button); 219 flags = mouse_status.flags; 220 if (flags == 0 || !tty_opened(sysmouse_tty)) 221 goto done; 222 223 /* the first five bytes are compatible with MouseSystems' */ 224 buf[0] = MOUSE_MSC_SYNC 225 | butmap[mouse_status.button & MOUSE_STDBUTTONS]; 226 x = imax(imin(x, 255), -256); 227 buf[1] = x >> 1; 228 buf[3] = x - buf[1]; 229 y = -imax(imin(y, 255), -256); 230 buf[2] = y >> 1; 231 buf[4] = y - buf[2]; 232 for (i = 0; i < MOUSE_MSC_PACKETSIZE; ++i) 233 ttydisc_rint(sysmouse_tty, buf[i], 0); 234 if (mouse_level >= 1) { 235 /* extended part */ 236 z = imax(imin(z, 127), -128); 237 buf[5] = (z >> 1) & 0x7f; 238 buf[6] = (z - (z >> 1)) & 0x7f; 239 /* buttons 4-10 */ 240 buf[7] = (~mouse_status.button >> 3) & 0x7f; 241 for (i = MOUSE_MSC_PACKETSIZE; i < MOUSE_SYS_PACKETSIZE; ++i) 242 ttydisc_rint(sysmouse_tty, buf[i], 0); 243 } 244 ttydisc_rint_done(sysmouse_tty); 245 246 done: tty_unlock(sysmouse_tty); 247 return (flags); 248 } 249 250 #endif /* !SC_NO_SYSMOUSE */ 251