]> CyberLeo.Net >> Repos - FreeBSD/releng/8.1.git/blob - sys/dev/syscons/sysmouse.c
Copy stable/8 to releng/8.1 in preparation for 8.1-RC1.
[FreeBSD/releng/8.1.git] / sys / dev / syscons / sysmouse.c
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 /* local variables */
47 static struct tty       *sysmouse_tty;
48 static int              mouse_level;    /* sysmouse protocol level */
49 static mousestatus_t    mouse_status;
50
51 static void
52 smdev_close(struct tty *tp)
53 {
54         mouse_level = 0;
55 }
56
57 static int
58 smdev_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
143 static int
144 smdev_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
157 static 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
164 static void
165 sm_attach_mouse(void *unused)
166 {
167         sysmouse_tty = tty_alloc(&smdev_ttydevsw, NULL);
168         tty_makedev(sysmouse_tty, NULL, "sysmouse");
169 }
170
171 SYSINIT(sysmouse, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sm_attach_mouse, NULL);
172
173 int
174 sysmouse_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
245 done:   tty_unlock(sysmouse_tty);
246         return (flags);
247 }
248
249 #endif /* !SC_NO_SYSMOUSE */