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