Change the kernel dev_t, representing a pointer to a specinfo structure,
[dragonfly.git] / sys / dev / misc / syscons / sysmouse.c
CommitLineData
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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 * $FreeBSD: src/sys/dev/syscons/sysmouse.c,v 1.2.2.2 2001/07/16 05:21:24 yokota Exp $
b13267a5 27 * $DragonFly: src/sys/dev/misc/syscons/sysmouse.c,v 1.12 2006/09/10 01:26:35 dillon Exp $
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28 */
29
30#include "opt_syscons.h"
31
32#include <sys/param.h>
33#include <sys/systm.h>
34#include <sys/conf.h>
35#include <sys/proc.h>
36#include <sys/tty.h>
37#include <sys/kernel.h>
6bc31f17 38#include <sys/thread2.h>
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39
40#include <machine/console.h>
41#include <machine/mouse.h>
42
1f2de5d4 43#include "syscons.h"
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44
45#ifndef SC_NO_SYSMOUSE
46
47#define CDEV_MAJOR 12 /* major number, shared with syscons */
48#define SC_MOUSE 128 /* minor number */
49
50static d_open_t smopen;
51static d_close_t smclose;
52static d_ioctl_t smioctl;
53
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54static struct dev_ops sm_ops = {
55 { "sysmouse", CDEV_MAJOR, D_TTY },
56 .d_open = smopen,
57 .d_close = smclose,
58 .d_read = ttyread,
59 .d_ioctl = smioctl,
60 .d_poll = ttypoll,
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61};
62
63/* local variables */
64static struct tty *sysmouse_tty;
65static int mouse_level; /* sysmouse protocol level */
66static mousestatus_t mouse_status;
67
68static void smstart(struct tty *tp);
69static int smparam(struct tty *tp, struct termios *t);
70
71static int
fef8985e 72smopen(struct dev_open_args *ap)
984263bc 73{
b13267a5 74 cdev_t dev = ap->a_head.a_dev;
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75 struct tty *tp;
76
77 DPRINTF(5, ("smopen: dev:%d,%d, vty:%d\n",
78 major(dev), minor(dev), SC_VTY(dev)));
79
80#if 0
81 if (SC_VTY(dev) != SC_MOUSE)
82 return ENXIO;
83#endif
84
85 tp = dev->si_tty = ttymalloc(dev->si_tty);
86 if (!(tp->t_state & TS_ISOPEN)) {
87 sysmouse_tty = tp;
88 tp->t_oproc = smstart;
89 tp->t_param = smparam;
90 tp->t_stop = nottystop;
91 tp->t_dev = dev;
92 ttychars(tp);
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93 tp->t_iflag = 0;
94 tp->t_oflag = 0;
95 tp->t_lflag = 0;
984263bc 96 tp->t_cflag = TTYDEF_CFLAG;
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97 tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
98 smparam(tp, &tp->t_termios);
99 (*linesw[tp->t_line].l_modem)(tp, 1);
fef8985e 100 } else if (tp->t_state & TS_XCLUDE && suser_cred(ap->a_cred, 0)) {
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101 return EBUSY;
102 }
103
104 return (*linesw[tp->t_line].l_open)(dev, tp);
105}
106
107static int
fef8985e 108smclose(struct dev_close_args *ap)
984263bc 109{
b13267a5 110 cdev_t dev = ap->a_head.a_dev;
984263bc 111 struct tty *tp;
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112
113 tp = dev->si_tty;
6bc31f17 114 crit_enter();
984263bc 115 mouse_level = 0;
fef8985e 116 (*linesw[tp->t_line].l_close)(tp, ap->a_fflag);
984263bc 117 ttyclose(tp);
6bc31f17 118 crit_exit();
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119
120 return 0;
121}
122
123static void
124smstart(struct tty *tp)
125{
126 struct clist *rbp;
127 u_char buf[PCBURST];
984263bc 128
6bc31f17 129 crit_enter();
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130 if (!(tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))) {
131 tp->t_state |= TS_BUSY;
132 rbp = &tp->t_outq;
133 while (rbp->c_cc)
134 q_to_b(rbp, buf, PCBURST);
135 tp->t_state &= ~TS_BUSY;
136 ttwwakeup(tp);
137 }
6bc31f17 138 crit_exit();
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139}
140
141static int
142smparam(struct tty *tp, struct termios *t)
143{
144 tp->t_ispeed = t->c_ispeed;
145 tp->t_ospeed = t->c_ospeed;
146 tp->t_cflag = t->c_cflag;
147 return 0;
148}
149
150static int
fef8985e 151smioctl(struct dev_ioctl_args *ap)
984263bc 152{
b13267a5 153 cdev_t dev = ap->a_head.a_dev;
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154 struct tty *tp;
155 mousehw_t *hw;
156 mousemode_t *mode;
157 int error;
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158
159 tp = dev->si_tty;
984263bc 160
fef8985e 161 switch (ap->a_cmd) {
984263bc 162 case MOUSE_GETHWINFO: /* get device information */
fef8985e 163 hw = (mousehw_t *)ap->a_data;
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164 hw->buttons = 10; /* XXX unknown */
165 hw->iftype = MOUSE_IF_SYSMOUSE;
166 hw->type = MOUSE_MOUSE;
167 hw->model = MOUSE_MODEL_GENERIC;
168 hw->hwid = 0;
169 return 0;
170
171 case MOUSE_GETMODE: /* get protocol/mode */
fef8985e 172 mode = (mousemode_t *)ap->a_data;
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173 mode->level = mouse_level;
174 switch (mode->level) {
175 case 0: /* emulate MouseSystems protocol */
176 mode->protocol = MOUSE_PROTO_MSC;
177 mode->rate = -1; /* unknown */
178 mode->resolution = -1; /* unknown */
179 mode->accelfactor = 0; /* disabled */
180 mode->packetsize = MOUSE_MSC_PACKETSIZE;
181 mode->syncmask[0] = MOUSE_MSC_SYNCMASK;
182 mode->syncmask[1] = MOUSE_MSC_SYNC;
183 break;
184
185 case 1: /* sysmouse protocol */
186 mode->protocol = MOUSE_PROTO_SYSMOUSE;
187 mode->rate = -1;
188 mode->resolution = -1;
189 mode->accelfactor = 0;
190 mode->packetsize = MOUSE_SYS_PACKETSIZE;
191 mode->syncmask[0] = MOUSE_SYS_SYNCMASK;
192 mode->syncmask[1] = MOUSE_SYS_SYNC;
193 break;
194 }
195 return 0;
196
197 case MOUSE_SETMODE: /* set protocol/mode */
fef8985e 198 mode = (mousemode_t *)ap->a_data;
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199 if (mode->level == -1)
200 ; /* don't change the current setting */
201 else if ((mode->level < 0) || (mode->level > 1))
202 return EINVAL;
203 else
204 mouse_level = mode->level;
205 return 0;
206
207 case MOUSE_GETLEVEL: /* get operation level */
fef8985e 208 *(int *)ap->a_data = mouse_level;
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209 return 0;
210
211 case MOUSE_SETLEVEL: /* set operation level */
fef8985e 212 if ((*(int *)ap->a_data < 0) || (*(int *)ap->a_data > 1))
984263bc 213 return EINVAL;
fef8985e 214 mouse_level = *(int *)ap->a_data;
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215 return 0;
216
217 case MOUSE_GETSTATUS: /* get accumulated mouse events */
6bc31f17 218 crit_enter();
fef8985e 219 *(mousestatus_t *)ap->a_data = mouse_status;
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220 mouse_status.flags = 0;
221 mouse_status.obutton = mouse_status.button;
222 mouse_status.dx = 0;
223 mouse_status.dy = 0;
224 mouse_status.dz = 0;
6bc31f17 225 crit_exit();
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226 return 0;
227
228#if notyet
229 case MOUSE_GETVARS: /* get internal mouse variables */
230 case MOUSE_SETVARS: /* set internal mouse variables */
231 return ENODEV;
232#endif
233
234 case MOUSE_READSTATE: /* read status from the device */
235 case MOUSE_READDATA: /* read data from the device */
236 return ENODEV;
237 }
238
fef8985e 239 error = (*linesw[tp->t_line].l_ioctl)(tp, ap->a_cmd, ap->a_data, ap->a_fflag, ap->a_cred);
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240 if (error != ENOIOCTL)
241 return error;
fef8985e 242 error = ttioctl(tp, ap->a_cmd, ap->a_data, ap->a_fflag);
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243 if (error != ENOIOCTL)
244 return error;
245 return ENOTTY;
246}
247
248static void
249sm_attach_mouse(void *unused)
250{
b13267a5 251 cdev_t dev;
984263bc 252
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253 dev_ops_add(&sm_ops, -1, SC_MOUSE);
254 dev = make_dev(&sm_ops, SC_MOUSE, UID_ROOT, GID_WHEEL, 0600,
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255 "sysmouse");
256 /* sysmouse doesn't have scr_stat */
257}
258
259SYSINIT(sysmouse, SI_SUB_DRIVERS, SI_ORDER_MIDDLE + CDEV_MAJOR,
260 sm_attach_mouse, NULL)
261
262int
263sysmouse_event(mouse_info_t *info)
264{
265 /* MOUSE_BUTTON?DOWN -> MOUSE_MSC_BUTTON?UP */
266 static int butmap[8] = {
267 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP,
268 MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP,
269 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON3UP,
270 MOUSE_MSC_BUTTON3UP,
271 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP,
272 MOUSE_MSC_BUTTON2UP,
273 MOUSE_MSC_BUTTON1UP,
274 0,
275 };
276 u_char buf[8];
277 int x, y, z;
278 int i;
279
280 switch (info->operation) {
281 case MOUSE_ACTION:
282 mouse_status.button = info->u.data.buttons;
283 /* FALL THROUGH */
284 case MOUSE_MOTION_EVENT:
285 x = info->u.data.x;
286 y = info->u.data.y;
287 z = info->u.data.z;
288 break;
289 case MOUSE_BUTTON_EVENT:
290 x = y = z = 0;
291 if (info->u.event.value > 0)
292 mouse_status.button |= info->u.event.id;
293 else
294 mouse_status.button &= ~info->u.event.id;
295 break;
296 default:
297 return 0;
298 }
299
300 mouse_status.dx += x;
301 mouse_status.dy += y;
302 mouse_status.dz += z;
303 mouse_status.flags |= ((x || y || z) ? MOUSE_POSCHANGED : 0)
304 | (mouse_status.obutton ^ mouse_status.button);
305 if (mouse_status.flags == 0)
306 return 0;
307
308 if ((sysmouse_tty == NULL) || !(sysmouse_tty->t_state & TS_ISOPEN))
309 return mouse_status.flags;
310
311 /* the first five bytes are compatible with MouseSystems' */
312 buf[0] = MOUSE_MSC_SYNC
313 | butmap[mouse_status.button & MOUSE_STDBUTTONS];
314 x = imax(imin(x, 255), -256);
315 buf[1] = x >> 1;
316 buf[3] = x - buf[1];
317 y = -imax(imin(y, 255), -256);
318 buf[2] = y >> 1;
319 buf[4] = y - buf[2];
320 for (i = 0; i < MOUSE_MSC_PACKETSIZE; ++i)
321 (*linesw[sysmouse_tty->t_line].l_rint)(buf[i], sysmouse_tty);
322 if (mouse_level >= 1) {
323 /* extended part */
324 z = imax(imin(z, 127), -128);
325 buf[5] = (z >> 1) & 0x7f;
326 buf[6] = (z - (z >> 1)) & 0x7f;
327 /* buttons 4-10 */
328 buf[7] = (~mouse_status.button >> 3) & 0x7f;
329 for (i = MOUSE_MSC_PACKETSIZE; i < MOUSE_SYS_PACKETSIZE; ++i)
330 (*linesw[sysmouse_tty->t_line].l_rint)(buf[i],
331 sysmouse_tty);
332 }
333
334 return mouse_status.flags;
335}
336
337#endif /* !SC_NO_SYSMOUSE */