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/kernel.h> 39 #include <sys/consio.h> 40 #include <sys/mouse.h> 41 42 #include <dev/syscons/syscons.h> 43 44 #ifndef SC_NO_SYSMOUSE 45 46 #define SC_MOUSE 128 /* minor number */ 47 48 /* local variables */ 49 static struct tty *sysmouse_tty; 50 static int mouse_level; /* sysmouse protocol level */ 51 static mousestatus_t mouse_status; 52 53 static void 54 smdev_close(struct tty *tp) 55 { 56 mouse_level = 0; 57 } 58 59 static int 60 smdev_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td) 61 { 62 mousehw_t *hw; 63 mousemode_t *mode; 64 int s; 65 66 switch (cmd) { 67 68 case MOUSE_GETHWINFO: /* get device information */ 69 hw = (mousehw_t *)data; 70 hw->buttons = 10; /* XXX unknown */ 71 hw->iftype = MOUSE_IF_SYSMOUSE; 72 hw->type = MOUSE_MOUSE; 73 hw->model = MOUSE_MODEL_GENERIC; 74 hw->hwid = 0; 75 return 0; 76 77 case MOUSE_GETMODE: /* get protocol/mode */ 78 mode = (mousemode_t *)data; 79 mode->level = mouse_level; 80 switch (mode->level) { 81 case 0: /* emulate MouseSystems protocol */ 82 mode->protocol = MOUSE_PROTO_MSC; 83 mode->rate = -1; /* unknown */ 84 mode->resolution = -1; /* unknown */ 85 mode->accelfactor = 0; /* disabled */ 86 mode->packetsize = MOUSE_MSC_PACKETSIZE; 87 mode->syncmask[0] = MOUSE_MSC_SYNCMASK; 88 mode->syncmask[1] = MOUSE_MSC_SYNC; 89 break; 90 91 case 1: /* sysmouse protocol */ 92 mode->protocol = MOUSE_PROTO_SYSMOUSE; 93 mode->rate = -1; 94 mode->resolution = -1; 95 mode->accelfactor = 0; 96 mode->packetsize = MOUSE_SYS_PACKETSIZE; 97 mode->syncmask[0] = MOUSE_SYS_SYNCMASK; 98 mode->syncmask[1] = MOUSE_SYS_SYNC; 99 break; 100 } 101 return 0; 102 103 case MOUSE_SETMODE: /* set protocol/mode */ 104 mode = (mousemode_t *)data; 105 if (mode->level == -1) 106 ; /* don't change the current setting */ 107 else if ((mode->level < 0) || (mode->level > 1)) 108 return EINVAL; 109 else 110 mouse_level = mode->level; 111 return 0; 112 113 case MOUSE_GETLEVEL: /* get operation level */ 114 *(int *)data = mouse_level; 115 return 0; 116 117 case MOUSE_SETLEVEL: /* set operation level */ 118 if ((*(int *)data < 0) || (*(int *)data > 1)) 119 return EINVAL; 120 mouse_level = *(int *)data; 121 return 0; 122 123 case MOUSE_GETSTATUS: /* get accumulated mouse events */ 124 s = spltty(); 125 *(mousestatus_t *)data = mouse_status; 126 mouse_status.flags = 0; 127 mouse_status.obutton = mouse_status.button; 128 mouse_status.dx = 0; 129 mouse_status.dy = 0; 130 mouse_status.dz = 0; 131 splx(s); 132 return 0; 133 134 #ifdef notyet 135 case MOUSE_GETVARS: /* get internal mouse variables */ 136 case MOUSE_SETVARS: /* set internal mouse variables */ 137 return ENODEV; 138 #endif 139 140 case MOUSE_READSTATE: /* read status from the device */ 141 case MOUSE_READDATA: /* read data from the device */ 142 return ENODEV; 143 } 144 145 return (ENOIOCTL); 146 } 147 148 static int 149 smdev_param(struct tty *tp, struct termios *t) 150 { 151 152 /* 153 * Set the output baud rate to zero. The mouse device supports 154 * no output, so we don't want to waste buffers. 155 */ 156 t->c_ispeed = TTYDEF_SPEED_PSEUDO; 157 t->c_ospeed = B0; 158 159 return (0); 160 } 161 162 static struct ttydevsw smdev_ttydevsw = { 163 .tsw_flags = TF_NOPREFIX, 164 .tsw_close = smdev_close, 165 .tsw_ioctl = smdev_ioctl, 166 .tsw_param = smdev_param, 167 }; 168 169 static void 170 sm_attach_mouse(void *unused) 171 { 172 sysmouse_tty = tty_alloc(&smdev_ttydevsw, NULL, &Giant); 173 tty_makedev(sysmouse_tty, NULL, "sysmouse"); 174 } 175 176 SYSINIT(sysmouse, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sm_attach_mouse, NULL); 177 178 int 179 sysmouse_event(mouse_info_t *info) 180 { 181 /* MOUSE_BUTTON?DOWN -> MOUSE_MSC_BUTTON?UP */ 182 static int butmap[8] = { 183 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 184 MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 185 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON3UP, 186 MOUSE_MSC_BUTTON3UP, 187 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP, 188 MOUSE_MSC_BUTTON2UP, 189 MOUSE_MSC_BUTTON1UP, 190 0, 191 }; 192 u_char buf[8]; 193 int x, y, z; 194 int i; 195 196 switch (info->operation) { 197 case MOUSE_ACTION: 198 mouse_status.button = info->u.data.buttons; 199 /* FALL THROUGH */ 200 case MOUSE_MOTION_EVENT: 201 x = info->u.data.x; 202 y = info->u.data.y; 203 z = info->u.data.z; 204 break; 205 case MOUSE_BUTTON_EVENT: 206 x = y = z = 0; 207 if (info->u.event.value > 0) 208 mouse_status.button |= info->u.event.id; 209 else 210 mouse_status.button &= ~info->u.event.id; 211 break; 212 default: 213 return 0; 214 } 215 216 mouse_status.dx += x; 217 mouse_status.dy += y; 218 mouse_status.dz += z; 219 mouse_status.flags |= ((x || y || z) ? MOUSE_POSCHANGED : 0) 220 | (mouse_status.obutton ^ mouse_status.button); 221 if (mouse_status.flags == 0) 222 return 0; 223 224 if ((sysmouse_tty == NULL) || !tty_opened(sysmouse_tty)) 225 return mouse_status.flags; 226 227 /* the first five bytes are compatible with MouseSystems' */ 228 buf[0] = MOUSE_MSC_SYNC 229 | butmap[mouse_status.button & MOUSE_STDBUTTONS]; 230 x = imax(imin(x, 255), -256); 231 buf[1] = x >> 1; 232 buf[3] = x - buf[1]; 233 y = -imax(imin(y, 255), -256); 234 buf[2] = y >> 1; 235 buf[4] = y - buf[2]; 236 for (i = 0; i < MOUSE_MSC_PACKETSIZE; ++i) 237 ttydisc_rint(sysmouse_tty, buf[i], 0); 238 if (mouse_level >= 1) { 239 /* extended part */ 240 z = imax(imin(z, 127), -128); 241 buf[5] = (z >> 1) & 0x7f; 242 buf[6] = (z - (z >> 1)) & 0x7f; 243 /* buttons 4-10 */ 244 buf[7] = (~mouse_status.button >> 3) & 0x7f; 245 for (i = MOUSE_MSC_PACKETSIZE; i < MOUSE_SYS_PACKETSIZE; ++i) 246 ttydisc_rint(sysmouse_tty, buf[i], 0); 247 } 248 ttydisc_rint_done(sysmouse_tty); 249 250 return mouse_status.flags; 251 } 252 253 #endif /* !SC_NO_SYSMOUSE */ 254