sysmouse.c revision 184771
1160819Ssimon/*- 2160819Ssimon * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 3160819Ssimon * All rights reserved. 4160819Ssimon * 5160819Ssimon * Redistribution and use in source and binary forms, with or without 6160819Ssimon * 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: head/sys/dev/syscons/sysmouse.c 184771 2008-11-08 20:40:39Z ed $"); 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/* local variables */ 47static struct tty *sysmouse_tty; 48static int mouse_level; /* sysmouse protocol level */ 49static mousestatus_t mouse_status; 50 51static void 52smdev_close(struct tty *tp) 53{ 54 mouse_level = 0; 55} 56 57static int 58smdev_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td) 59{ 60 mousehw_t *hw; 61 mousemode_t *mode; 62 63 switch (cmd) { 64 65 case MOUSE_GETHWINFO: /* get device information */ 66 hw = (mousehw_t *)data; 67 hw->buttons = 10; /* XXX unknown */ 68 hw->iftype = MOUSE_IF_SYSMOUSE; 69 hw->type = MOUSE_MOUSE; 70 hw->model = MOUSE_MODEL_GENERIC; 71 hw->hwid = 0; 72 return 0; 73 74 case MOUSE_GETMODE: /* get protocol/mode */ 75 mode = (mousemode_t *)data; 76 mode->level = mouse_level; 77 switch (mode->level) { 78 case 0: /* emulate MouseSystems protocol */ 79 mode->protocol = MOUSE_PROTO_MSC; 80 mode->rate = -1; /* unknown */ 81 mode->resolution = -1; /* unknown */ 82 mode->accelfactor = 0; /* disabled */ 83 mode->packetsize = MOUSE_MSC_PACKETSIZE; 84 mode->syncmask[0] = MOUSE_MSC_SYNCMASK; 85 mode->syncmask[1] = MOUSE_MSC_SYNC; 86 break; 87 88 case 1: /* sysmouse protocol */ 89 mode->protocol = MOUSE_PROTO_SYSMOUSE; 90 mode->rate = -1; 91 mode->resolution = -1; 92 mode->accelfactor = 0; 93 mode->packetsize = MOUSE_SYS_PACKETSIZE; 94 mode->syncmask[0] = MOUSE_SYS_SYNCMASK; 95 mode->syncmask[1] = MOUSE_SYS_SYNC; 96 break; 97 } 98 return 0; 99 100 case MOUSE_SETMODE: /* set protocol/mode */ 101 mode = (mousemode_t *)data; 102 if (mode->level == -1) 103 ; /* don't change the current setting */ 104 else if ((mode->level < 0) || (mode->level > 1)) 105 return EINVAL; 106 else 107 mouse_level = mode->level; 108 return 0; 109 110 case MOUSE_GETLEVEL: /* get operation level */ 111 *(int *)data = mouse_level; 112 return 0; 113 114 case MOUSE_SETLEVEL: /* set operation level */ 115 if ((*(int *)data < 0) || (*(int *)data > 1)) 116 return EINVAL; 117 mouse_level = *(int *)data; 118 return 0; 119 120 case MOUSE_GETSTATUS: /* get accumulated mouse events */ 121 *(mousestatus_t *)data = mouse_status; 122 mouse_status.flags = 0; 123 mouse_status.obutton = mouse_status.button; 124 mouse_status.dx = 0; 125 mouse_status.dy = 0; 126 mouse_status.dz = 0; 127 return 0; 128 129#ifdef notyet 130 case MOUSE_GETVARS: /* get internal mouse variables */ 131 case MOUSE_SETVARS: /* set internal mouse variables */ 132 return ENODEV; 133#endif 134 135 case MOUSE_READSTATE: /* read status from the device */ 136 case MOUSE_READDATA: /* read data from the device */ 137 return ENODEV; 138 } 139 140 return (ENOIOCTL); 141} 142 143static int 144smdev_param(struct tty *tp, struct termios *t) 145{ 146 147 /* 148 * Set the output baud rate to zero. The mouse device supports 149 * no output, so we don't want to waste buffers. 150 */ 151 t->c_ispeed = TTYDEF_SPEED; 152 t->c_ospeed = B0; 153 154 return (0); 155} 156 157static struct ttydevsw smdev_ttydevsw = { 158 .tsw_flags = TF_NOPREFIX, 159 .tsw_close = smdev_close, 160 .tsw_ioctl = smdev_ioctl, 161 .tsw_param = smdev_param, 162}; 163 164static void 165sm_attach_mouse(void *unused) 166{ 167 sysmouse_tty = tty_alloc(&smdev_ttydevsw, NULL, NULL); 168 tty_makedev(sysmouse_tty, NULL, "sysmouse"); 169} 170 171SYSINIT(sysmouse, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sm_attach_mouse, NULL); 172 173int 174sysmouse_event(mouse_info_t *info) 175{ 176 /* MOUSE_BUTTON?DOWN -> MOUSE_MSC_BUTTON?UP */ 177 static int butmap[8] = { 178 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 179 MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 180 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON3UP, 181 MOUSE_MSC_BUTTON3UP, 182 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP, 183 MOUSE_MSC_BUTTON2UP, 184 MOUSE_MSC_BUTTON1UP, 185 0, 186 }; 187 u_char buf[8]; 188 int x, y, z; 189 int i, flags = 0; 190 191 tty_lock(sysmouse_tty); 192 193 switch (info->operation) { 194 case MOUSE_ACTION: 195 mouse_status.button = info->u.data.buttons; 196 /* FALL THROUGH */ 197 case MOUSE_MOTION_EVENT: 198 x = info->u.data.x; 199 y = info->u.data.y; 200 z = info->u.data.z; 201 break; 202 case MOUSE_BUTTON_EVENT: 203 x = y = z = 0; 204 if (info->u.event.value > 0) 205 mouse_status.button |= info->u.event.id; 206 else 207 mouse_status.button &= ~info->u.event.id; 208 break; 209 default: 210 goto done; 211 } 212 213 mouse_status.dx += x; 214 mouse_status.dy += y; 215 mouse_status.dz += z; 216 mouse_status.flags |= ((x || y || z) ? MOUSE_POSCHANGED : 0) 217 | (mouse_status.obutton ^ mouse_status.button); 218 flags = mouse_status.flags; 219 if (flags == 0 || !tty_opened(sysmouse_tty)) 220 goto done; 221 222 /* the first five bytes are compatible with MouseSystems' */ 223 buf[0] = MOUSE_MSC_SYNC 224 | butmap[mouse_status.button & MOUSE_STDBUTTONS]; 225 x = imax(imin(x, 255), -256); 226 buf[1] = x >> 1; 227 buf[3] = x - buf[1]; 228 y = -imax(imin(y, 255), -256); 229 buf[2] = y >> 1; 230 buf[4] = y - buf[2]; 231 for (i = 0; i < MOUSE_MSC_PACKETSIZE; ++i) 232 ttydisc_rint(sysmouse_tty, buf[i], 0); 233 if (mouse_level >= 1) { 234 /* extended part */ 235 z = imax(imin(z, 127), -128); 236 buf[5] = (z >> 1) & 0x7f; 237 buf[6] = (z - (z >> 1)) & 0x7f; 238 /* buttons 4-10 */ 239 buf[7] = (~mouse_status.button >> 3) & 0x7f; 240 for (i = MOUSE_MSC_PACKETSIZE; i < MOUSE_SYS_PACKETSIZE; ++i) 241 ttydisc_rint(sysmouse_tty, buf[i], 0); 242 } 243 ttydisc_rint_done(sysmouse_tty); 244 245done: tty_unlock(sysmouse_tty); 246 return (flags); 247} 248 249#endif /* !SC_NO_SYSMOUSE */ 250