xref: /netbsd/usr.sbin/moused/moused.c (revision aa149578)
1 /* $NetBSD: moused.c,v 1.21 2011/08/31 08:15:08 gson Exp $ */
2 /**
3  ** Copyright (c) 1995 Michael Smith, 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  ** 3. All advertising materials mentioning features or use of this software
15  **    must display the following acknowledgment:
16  **      This product includes software developed by Michael Smith.
17  ** 4. The name of the author may not be used to endorse or promote products
18  **    derived from this software without specific prior written permission.
19  **
20  **
21  ** THIS SOFTWARE IS PROVIDED BY Michael Smith ``AS IS'' AND ANY
22  ** EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  ** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24  ** PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Michael Smith BE LIABLE FOR
25  ** ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26  ** CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27  ** SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
28  ** BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29  ** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
30  ** OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
31  ** EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32  **
33  **/
34 
35 /**
36  ** MOUSED.C
37  **
38  ** Mouse daemon : listens to a serial port, the bus mouse interface, or
39  ** the PS/2 mouse port for mouse data stream, interprets data and passes
40  ** ioctls off to the console driver.
41  **
42  ** The mouse interface functions are derived closely from the mouse
43  ** handler in the XFree86 X server.  Many thanks to the XFree86 people
44  ** for their great work!
45  **
46  **/
47 
48 #include <sys/cdefs.h>
49 
50 #ifndef lint
51 __RCSID("$NetBSD: moused.c,v 1.21 2011/08/31 08:15:08 gson Exp $");
52 #endif /* not lint */
53 
54 #include <ctype.h>
55 #include <err.h>
56 #include <errno.h>
57 #include <fcntl.h>
58 #include <limits.h>
59 #include <stdio.h>
60 #include <stdlib.h>
61 #include <stdarg.h>
62 #include <string.h>
63 #include <signal.h>
64 #include <setjmp.h>
65 #include <termios.h>
66 #include <syslog.h>
67 #include "mouse.h"
68 #include <sys/ioctl.h>
69 #include <dev/wscons/wsconsio.h>
70 #include <sys/types.h>
71 #include <sys/time.h>
72 #include <sys/socket.h>
73 #include <sys/un.h>
74 #include <poll.h>
75 #include <unistd.h>
76 
77 #define MAX_CLICKTHRESHOLD	2000	/* 2 seconds */
78 #define MAX_BUTTON2TIMEOUT	2000	/* 2 seconds */
79 #define DFLT_CLICKTHRESHOLD	 500	/* 0.5 second */
80 #define DFLT_BUTTON2TIMEOUT	 100	/* 0.1 second */
81 
82 /* Abort 3-button emulation delay after this many movement events. */
83 #define BUTTON2_MAXMOVE	3
84 
85 #define TRUE		1
86 #define FALSE		0
87 
88 #define MOUSE_XAXIS	(-1)
89 #define MOUSE_YAXIS	(-2)
90 
91 /* Logitech PS2++ protocol */
92 #define MOUSE_PS2PLUS_CHECKBITS(b)	\
93 			((((b[2] & 0x03) << 2) | 0x02) == (b[1] & 0x0f))
94 #define MOUSE_PS2PLUS_PACKET_TYPE(b)	\
95 			(((b[0] & 0x30) >> 2) | ((b[1] & 0x30) >> 4))
96 
97 #define	ChordMiddle	0x0001
98 #define Emulate3Button	0x0002
99 #define ClearDTR	0x0004
100 #define ClearRTS	0x0008
101 #define NoPnP		0x0010
102 
103 #define ID_NONE		0
104 #define ID_PORT		1
105 #define ID_IF		2
106 #define ID_TYPE 	4
107 #define ID_MODEL	8
108 #define ID_ALL		(ID_PORT | ID_IF | ID_TYPE | ID_MODEL)
109 
110 /* structures */
111 
112 /* symbol table entry */
113 typedef struct {
114     const char *name;
115     int val;
116     int val2;
117 } symtab_t;
118 
119 /* serial PnP ID string */
120 typedef struct {
121     int revision;	/* PnP revision, 100 for 1.00 */
122     const char *eisaid;	/* EISA ID including mfr ID and product ID */
123     const char *serial;	/* serial No, optional */
124     const char *class;	/* device class, optional */
125     const char *compat;	/* list of compatible drivers, optional */
126     const char *description;	/* product description, optional */
127     int neisaid;	/* length of the above fields... */
128     int nserial;
129     int nclass;
130     int ncompat;
131     int ndescription;
132 } pnpid_t;
133 
134 /* global variables */
135 
136 static int	dbg = 0;
137 static int	nodaemon = FALSE;
138 static int	background = FALSE;
139 static int	identify = ID_NONE;
140 static const char *pidfile = "/var/run/moused.pid";
141 
142 /* local variables */
143 
144 /* interface (the table must be ordered by MOUSE_IF_XXX in mouse.h) */
145 static symtab_t rifs[] = {
146     { "serial",		MOUSE_IF_SERIAL, 0 },
147     { "bus",		MOUSE_IF_BUS, 0 },
148     { "inport",		MOUSE_IF_INPORT, 0 },
149     { "ps/2",		MOUSE_IF_PS2, 0 },
150     { "sysmouse",	MOUSE_IF_SYSMOUSE, 0 },
151     { "usb",		MOUSE_IF_USB, 0 },
152     { NULL,		MOUSE_IF_UNKNOWN, 0 },
153 };
154 
155 /* types (the table must be ordered by MOUSE_PROTO_XXX in mouse.h) */
156 static const char *rnames[] = {
157     "microsoft",
158     "mousesystems",
159     "logitech",
160     "mmseries",
161     "mouseman",
162     "busmouse",
163     "inportmouse",
164     "ps/2",
165     "mmhitab",
166     "glidepoint",
167     "intellimouse",
168     "thinkingmouse",
169     "sysmouse",
170     "x10mouseremote",
171     "kidspad",
172 #if notyet
173     "mariqua",
174 #endif
175     NULL
176 };
177 
178 /* models */
179 static symtab_t	rmodels[] = {
180     { "NetScroll",		MOUSE_MODEL_NETSCROLL, 0 },
181     { "NetMouse/NetScroll Optical", MOUSE_MODEL_NET, 0 },
182     { "GlidePoint",		MOUSE_MODEL_GLIDEPOINT, 0 },
183     { "ThinkingMouse",		MOUSE_MODEL_THINK, 0 },
184     { "IntelliMouse",		MOUSE_MODEL_INTELLI, 0 },
185     { "EasyScroll/SmartScroll",	MOUSE_MODEL_EASYSCROLL, 0 },
186     { "MouseMan+",		MOUSE_MODEL_MOUSEMANPLUS, 0 },
187     { "Kidspad",		MOUSE_MODEL_KIDSPAD, 0 },
188     { "VersaPad",		MOUSE_MODEL_VERSAPAD, 0 },
189     { "IntelliMouse Explorer",	MOUSE_MODEL_EXPLORER, 0 },
190     { "4D Mouse",		MOUSE_MODEL_4D, 0 },
191     { "4D+ Mouse",		MOUSE_MODEL_4DPLUS, 0 },
192     { "generic",		MOUSE_MODEL_GENERIC, 0 },
193     { NULL, 			MOUSE_MODEL_UNKNOWN, 0 },
194 };
195 
196 /* PnP EISA/product IDs */
197 static symtab_t pnpprod[] = {
198     /* Kensignton ThinkingMouse */
199     { "KML0001",	MOUSE_PROTO_THINK,	MOUSE_MODEL_THINK },
200     /* MS IntelliMouse */
201     { "MSH0001",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_INTELLI },
202     /* MS IntelliMouse TrackBall */
203     { "MSH0004",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_INTELLI },
204     /* Tremon Wheel Mouse MUSD */
205     { "HTK0001",        MOUSE_PROTO_INTELLI,    MOUSE_MODEL_INTELLI },
206     /* Genius PnP Mouse */
207     { "KYE0001",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
208     /* MouseSystems SmartScroll Mouse (OEM from Genius?) */
209     { "KYE0002",	MOUSE_PROTO_MS,		MOUSE_MODEL_EASYSCROLL },
210     /* Genius NetMouse */
211     { "KYE0003",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_NET },
212     /* Genius Kidspad, Easypad and other tablets */
213     { "KYE0005",	MOUSE_PROTO_KIDSPAD,	MOUSE_MODEL_KIDSPAD },
214     /* Genius EZScroll */
215     { "KYEEZ00",	MOUSE_PROTO_MS,		MOUSE_MODEL_EASYSCROLL },
216     /* Logitech Cordless MouseMan Wheel */
217     { "LGI8033",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_MOUSEMANPLUS },
218     /* Logitech MouseMan (new 4 button model) */
219     { "LGI800C",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_MOUSEMANPLUS },
220     /* Logitech MouseMan+ */
221     { "LGI8050",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_MOUSEMANPLUS },
222     /* Logitech FirstMouse+ */
223     { "LGI8051",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_MOUSEMANPLUS },
224     /* Logitech serial */
225     { "LGI8001",	MOUSE_PROTO_LOGIMOUSEMAN, MOUSE_MODEL_GENERIC },
226     /* A4 Tech 4D/4D+ Mouse */
227     { "A4W0005",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_4D },
228     /* 8D Scroll Mouse */
229     { "PEC9802",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_INTELLI },
230     /* Mitsumi Wireless Scroll Mouse */
231     { "MTM6401",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_INTELLI },
232 
233     /* MS bus */
234     { "PNP0F00",	MOUSE_PROTO_BUS,	MOUSE_MODEL_GENERIC },
235     /* MS serial */
236     { "PNP0F01",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
237     /* MS InPort */
238     { "PNP0F02",	MOUSE_PROTO_INPORT,	MOUSE_MODEL_GENERIC },
239     /* MS PS/2 */
240     { "PNP0F03",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
241     /*
242      * EzScroll returns PNP0F04 in the compatible device field; but it
243      * doesn't look compatible... XXX
244      */
245     /* MouseSystems */
246     { "PNP0F04",	MOUSE_PROTO_MSC,	MOUSE_MODEL_GENERIC },
247     /* MouseSystems */
248     { "PNP0F05",	MOUSE_PROTO_MSC,	MOUSE_MODEL_GENERIC },
249 #if notyet
250     /* Genius Mouse */
251     { "PNP0F06",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
252     /* Genius Mouse */
253     { "PNP0F07",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
254 #endif
255     /* Logitech serial */
256     { "PNP0F08",	MOUSE_PROTO_LOGIMOUSEMAN, MOUSE_MODEL_GENERIC },
257     /* MS BallPoint serial */
258     { "PNP0F09",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
259     /* MS PnP serial */
260     { "PNP0F0A",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
261     /* MS PnP BallPoint serial */
262     { "PNP0F0B",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
263     /* MS serial comatible */
264     { "PNP0F0C",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
265     /* MS InPort comatible */
266     { "PNP0F0D",	MOUSE_PROTO_INPORT,	MOUSE_MODEL_GENERIC },
267     /* MS PS/2 comatible */
268     { "PNP0F0E",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
269     /* MS BallPoint comatible */
270     { "PNP0F0F",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
271 #if notyet
272     /* TI QuickPort */
273     { "PNP0F10",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
274 #endif
275     /* MS bus comatible */
276     { "PNP0F11",	MOUSE_PROTO_BUS,	MOUSE_MODEL_GENERIC },
277     /* Logitech PS/2 */
278     { "PNP0F12",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
279     /* PS/2 */
280     { "PNP0F13",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
281 #if notyet
282     /* MS Kids Mouse */
283     { "PNP0F14",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
284 #endif
285     /* Logitech bus */
286     { "PNP0F15",	MOUSE_PROTO_BUS,	MOUSE_MODEL_GENERIC },
287 #if notyet
288     /* Logitech SWIFT */
289     { "PNP0F16",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
290 #endif
291     /* Logitech serial compat */
292     { "PNP0F17",	MOUSE_PROTO_LOGIMOUSEMAN, MOUSE_MODEL_GENERIC },
293     /* Logitech bus compatible */
294     { "PNP0F18",	MOUSE_PROTO_BUS,	MOUSE_MODEL_GENERIC },
295     /* Logitech PS/2 compatible */
296     { "PNP0F19",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
297 #if notyet
298     /* Logitech SWIFT compatible */
299     { "PNP0F1A",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
300     /* HP Omnibook */
301     { "PNP0F1B",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
302     /* Compaq LTE TrackBall PS/2 */
303     { "PNP0F1C",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
304     /* Compaq LTE TrackBall serial */
305     { "PNP0F1D",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
306     /* MS Kidts Trackball */
307     { "PNP0F1E",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
308 #endif
309     /* Interlink VersaPad */
310     { "LNK0001",	MOUSE_PROTO_VERSAPAD,	MOUSE_MODEL_VERSAPAD },
311 
312     { NULL,		MOUSE_PROTO_UNKNOWN,	MOUSE_MODEL_GENERIC },
313 };
314 
315 /* the table must be ordered by MOUSE_PROTO_XXX in mouse.h */
316 static unsigned short rodentcflags[] =
317 {
318     (CS7	           | CREAD | CLOCAL | HUPCL ),	/* MicroSoft */
319     (CS8 | CSTOPB	   | CREAD | CLOCAL | HUPCL ),	/* MouseSystems */
320     (CS8 | CSTOPB	   | CREAD | CLOCAL | HUPCL ),	/* Logitech */
321     (CS8 | PARENB | PARODD | CREAD | CLOCAL | HUPCL ),	/* MMSeries */
322     (CS7		   | CREAD | CLOCAL | HUPCL ),	/* MouseMan */
323     0,							/* Bus */
324     0,							/* InPort */
325     0,							/* PS/2 */
326     (CS8		   | CREAD | CLOCAL | HUPCL ),	/* MM HitTablet */
327     (CS7	           | CREAD | CLOCAL | HUPCL ),	/* GlidePoint */
328     (CS7                   | CREAD | CLOCAL | HUPCL ),	/* IntelliMouse */
329     (CS7                   | CREAD | CLOCAL | HUPCL ),	/* Thinking Mouse */
330     (CS8 | CSTOPB	   | CREAD | CLOCAL | HUPCL ),	/* sysmouse */
331     (CS7	           | CREAD | CLOCAL | HUPCL ),	/* X10 MouseRemote */
332     (CS8 | PARENB | PARODD | CREAD | CLOCAL | HUPCL ),	/* kidspad etc. */
333     (CS8		   | CREAD | CLOCAL | HUPCL ),	/* VersaPad */
334 #if notyet
335     (CS8 | CSTOPB	   | CREAD | CLOCAL | HUPCL ),	/* Mariqua */
336 #endif
337 };
338 
339 static struct rodentparam {
340     int flags;
341     char *portname;		/* /dev/XXX */
342     int rtype;			/* MOUSE_PROTO_XXX */
343     int level;			/* operation level: 0 or greater */
344     int baudrate;
345     int rate;			/* report rate */
346     int resolution;		/* MOUSE_RES_XXX or a positive number */
347     int zmap[4];		/* MOUSE_{X|Y}AXIS or a button number */
348     int wmode;			/* wheel mode button number */
349     int mfd;			/* mouse file descriptor */
350     int cfd;			/* /dev/wsmousectl file descriptor */
351     int mremsfd;		/* mouse remote server file descriptor */
352     int mremcfd;		/* mouse remote client file descriptor */
353     long clickthreshold;	/* double click speed in msec */
354     long button2timeout;	/* 3 button emulation timeout */
355     mousehw_t hw;		/* mouse device hardware information */
356     mousemode_t mode;		/* protocol information */
357     float accelx;		/* Acceleration in the X axis */
358     float accely;		/* Acceleration in the Y axis */
359 } rodent = {
360     .flags = 0,
361     .portname = NULL,
362     .rtype = MOUSE_PROTO_UNKNOWN,
363     .level = -1,
364     .baudrate = 1200,
365     .rate = 0,
366     .resolution = MOUSE_RES_UNKNOWN,
367     .zmap = { 0, 0, 0, 0 },
368     .wmode = 0,
369     .mfd = -1,
370     .cfd = -1,
371     .mremsfd = -1,
372     .mremcfd = -1,
373     .clickthreshold = DFLT_CLICKTHRESHOLD,
374     .button2timeout = DFLT_BUTTON2TIMEOUT,
375     .accelx = 1.0,
376     .accely = 1.0,
377 };
378 
379 /* button status */
380 struct button_state {
381     int count;		/* 0: up, 1: single click, 2: double click,... */
382     struct timeval tv;	/* timestamp on the last button event */
383 };
384 static struct button_state	bstate[MOUSE_MAXBUTTON]; /* button state */
385 static struct button_state	*mstate[MOUSE_MAXBUTTON];/* mapped button st.*/
386 static struct button_state	zstate[4];		 /* Z/W axis state */
387 
388 /* state machine for 3 button emulation */
389 
390 #define S0	0	/* start */
391 #define S1	1	/* button 1 delayed down */
392 #define S2	2	/* button 3 delayed down */
393 #define S3	3	/* both buttons down -> button 2 down */
394 #define S4	4	/* button 1 delayed up */
395 #define S5	5	/* button 1 down */
396 #define S6	6	/* button 3 down */
397 #define S7	7	/* both buttons down */
398 #define S8	8	/* button 3 delayed up */
399 #define S9	9	/* button 1 or 3 up after S3 */
400 
401 #define A(b1, b3)	(((b1) ? 2 : 0) | ((b3) ? 1 : 0))
402 #define A_TIMEOUT	4
403 #define S_DELAYED(st)	(states[st].s[A_TIMEOUT] != (st))
404 
405 static struct {
406     int s[A_TIMEOUT + 1];
407     int buttons;
408     int mask;
409     int timeout;
410 } states[10] = {
411     /* S0 */
412     { { S0, S2, S1, S3, S0 }, 0, ~(MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN), FALSE },
413     /* S1 */
414     { { S4, S2, S1, S3, S5 }, 0, ~MOUSE_BUTTON1DOWN, FALSE },
415     /* S2 */
416     { { S8, S2, S1, S3, S6 }, 0, ~MOUSE_BUTTON3DOWN, FALSE },
417     /* S3 */
418     { { S0, S9, S9, S3, S3 }, MOUSE_BUTTON2DOWN, ~0, FALSE },
419     /* S4 */
420     { { S0, S2, S1, S3, S0 }, MOUSE_BUTTON1DOWN, ~0, TRUE },
421     /* S5 */
422     { { S0, S2, S5, S7, S5 }, MOUSE_BUTTON1DOWN, ~0, FALSE },
423     /* S6 */
424     { { S0, S6, S1, S7, S6 }, MOUSE_BUTTON3DOWN, ~0, FALSE },
425     /* S7 */
426     { { S0, S6, S5, S7, S7 }, MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN, ~0, FALSE },
427     /* S8 */
428     { { S0, S2, S1, S3, S0 }, MOUSE_BUTTON3DOWN, ~0, TRUE },
429     /* S9 */
430     { { S0, S9, S9, S3, S9 }, 0, ~(MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN), FALSE },
431 };
432 static int		mouse_button_state;
433 static struct timeval	mouse_button_state_tv;
434 static int		mouse_move_delayed;
435 
436 static jmp_buf env;
437 
438 /* function prototypes */
439 
440 static void	moused(const char *);
441 __dead static void	hup(int sig);
442 __dead static void	cleanup(int sig);
443 __dead static void	usage(void);
444 
445 static int	r_identify(void);
446 static const char *r_if(int type);
447 static const char *r_name(int type);
448 static const char *r_model(int model);
449 static void	r_init(void);
450 static int	r_protocol(u_char b, mousestatus_t *act);
451 static int	r_statetrans(mousestatus_t *a1, mousestatus_t *a2, int trans);
452 static int	r_installmap(char *arg);
453 static void	r_map(mousestatus_t *act1, mousestatus_t *act2);
454 static void	r_timestamp(mousestatus_t *act);
455 static int	r_timeout(void);
456 static void	setmousespeed(int old, int new, unsigned cflag);
457 
458 static int	pnpwakeup1(void);
459 static int	pnpwakeup2(void);
460 static int	pnpgets(char *buf);
461 static int	pnpparse(pnpid_t *id, char *buf, int len);
462 static symtab_t	*pnpproto(pnpid_t *id);
463 
464 static symtab_t	*gettoken(symtab_t *tab, const char *s, int len);
465 static const char *gettokenname(symtab_t *tab, int val);
466 
467 static void wsev(int ty, int val);
468 
469 static int kidspad(u_char rxc, mousestatus_t *act);
470 
471 __printflike(1, 2) static void
472 debug(const char *fmt, ...)
473 {
474 	va_list ap;
475 
476 	va_start(ap, fmt);
477 	if (dbg && nodaemon)
478 		vwarnx(fmt, ap);
479 	va_end(ap);
480 }
481 
482 __dead __printflike(2, 3) static void
483 logerr(int e, const char *fmt, ...)
484 {
485 	va_list ap;
486 
487 	va_start(ap, fmt);
488 	if (background) {
489 		int saveerrno = errno;
490 		vsyslog(LOG_DAEMON | LOG_ERR, fmt, ap);
491 		errno = saveerrno;
492 		syslog(LOG_DAEMON | LOG_ERR, "%m");
493 		exit(e);
494 	} else
495 		verr(e, fmt, ap);
496 	va_end(ap);
497 }
498 
499 __printflike(1, 2) static void
500 logwarn(const char *fmt, ...)
501 {
502 	va_list ap;
503 
504 	va_start(ap, fmt);
505 	if (background) {
506 		int saveerrno = errno;
507 		vsyslog(LOG_DAEMON | LOG_WARNING, fmt, ap);
508 		errno = saveerrno;
509 		syslog(LOG_DAEMON | LOG_WARNING, "%m");
510 	} else
511 		vwarn(fmt, ap);
512 	va_end(ap);
513 }
514 
515 __printflike(1, 2) static void
516 logwarnx(const char *fmt, ...)
517 {
518 	va_list ap;
519 
520 	va_start(ap, fmt);
521 	if (background)
522 		vsyslog(LOG_DAEMON | LOG_WARNING, fmt, ap);
523 	else
524 		vwarnx(fmt, ap);
525 	va_end(ap);
526 }
527 
528 int
529 main(int argc, char *argv[])
530 {
531     int c;
532     int	i;
533     int	j;
534     const char * volatile ctldev = "/dev/wsmuxctl0";
535 
536     for (i = 0; i < MOUSE_MAXBUTTON; ++i)
537 	mstate[i] = &bstate[i];
538 
539     while((c = getopt(argc,argv,"3DE:F:I:PRS:W:a:cdfhi:l:m:p:r:st:w:z:")) != -1)
540 	switch(c) {
541 
542 	case 'W':
543 	    ctldev = optarg;
544 	    break;
545 
546 	case '3':
547 	    rodent.flags |= Emulate3Button;
548 	    break;
549 
550 	case 'E':
551 	    rodent.button2timeout = atoi(optarg);
552 	    if ((rodent.button2timeout < 0) ||
553 	        (rodent.button2timeout > MAX_BUTTON2TIMEOUT)) {
554 	        warnx("invalid argument `%s'", optarg);
555 	        usage();
556 	    }
557 	    break;
558 
559 	case 'a':
560 	    i = sscanf(optarg, "%f,%f", &rodent.accelx, &rodent.accely);
561 	    if (i == 0) {
562 		warnx("invalid acceleration argument '%s'", optarg);
563 		usage();
564 	    }
565 
566 	    if (i == 1)
567 		rodent.accely = rodent.accelx;
568 
569 	    break;
570 
571 	case 'c':
572 	    rodent.flags |= ChordMiddle;
573 	    break;
574 
575 	case 'd':
576 	    ++dbg;
577 	    break;
578 
579 	case 'f':
580 	    nodaemon = TRUE;
581 	    break;
582 
583 	case 'i':
584 	    if (strcmp(optarg, "all") == 0)
585 	        identify = ID_ALL;
586 	    else if (strcmp(optarg, "port") == 0)
587 	        identify = ID_PORT;
588 	    else if (strcmp(optarg, "if") == 0)
589 	        identify = ID_IF;
590 	    else if (strcmp(optarg, "type") == 0)
591 	        identify = ID_TYPE;
592 	    else if (strcmp(optarg, "model") == 0)
593 	        identify = ID_MODEL;
594 	    else {
595 	        warnx("invalid argument `%s'", optarg);
596 	        usage();
597 	    }
598 	    nodaemon = TRUE;
599 	    break;
600 
601 	case 'l':
602 	    rodent.level = atoi(optarg);
603 	    if ((rodent.level < 0) || (rodent.level > 4)) {
604 	        warnx("invalid argument `%s'", optarg);
605 	        usage();
606 	    }
607 	    break;
608 
609 	case 'm':
610 	    if (!r_installmap(optarg)) {
611 	        warnx("invalid argument `%s'", optarg);
612 	        usage();
613 	    }
614 	    break;
615 
616 	case 'p':
617 	    rodent.portname = optarg;
618 	    break;
619 
620 	case 'r':
621 	    if (strcmp(optarg, "high") == 0)
622 	        rodent.resolution = MOUSE_RES_HIGH;
623 	    else if (strcmp(optarg, "medium-high") == 0)
624 	        rodent.resolution = MOUSE_RES_HIGH;
625 	    else if (strcmp(optarg, "medium-low") == 0)
626 	        rodent.resolution = MOUSE_RES_MEDIUMLOW;
627 	    else if (strcmp(optarg, "low") == 0)
628 	        rodent.resolution = MOUSE_RES_LOW;
629 	    else if (strcmp(optarg, "default") == 0)
630 	        rodent.resolution = MOUSE_RES_DEFAULT;
631 	    else {
632 	        rodent.resolution = atoi(optarg);
633 	        if (rodent.resolution <= 0) {
634 	            warnx("invalid argument `%s'", optarg);
635 	            usage();
636 	        }
637 	    }
638 	    break;
639 
640 	case 's':
641 	    rodent.baudrate = 9600;
642 	    break;
643 
644 	case 'w':
645 	    i = atoi(optarg);
646 	    if ((i <= 0) || (i > MOUSE_MAXBUTTON)) {
647 		warnx("invalid argument `%s'", optarg);
648 		usage();
649 	    }
650 	    rodent.wmode = 1 << (i - 1);
651 	    break;
652 
653 	case 'z':
654 	    if (strcmp(optarg, "x") == 0)
655 		rodent.zmap[0] = MOUSE_XAXIS;
656 	    else if (strcmp(optarg, "y") == 0)
657 		rodent.zmap[0] = MOUSE_YAXIS;
658             else {
659 		i = atoi(optarg);
660 		/*
661 		 * Use button i for negative Z axis movement and
662 		 * button (i + 1) for positive Z axis movement.
663 		 */
664 		if ((i <= 0) || (i > MOUSE_MAXBUTTON - 1)) {
665 	            warnx("invalid argument `%s'", optarg);
666 	            usage();
667 		}
668 		rodent.zmap[0] = i;
669 		rodent.zmap[1] = i + 1;
670 		debug("optind: %d, optarg: '%s'", optind, optarg);
671 		for (j = 1; j < 4; ++j) {
672 		    if ((optind >= argc) || !isdigit((unsigned char)*argv[optind]))
673 			break;
674 		    i = atoi(argv[optind]);
675 		    if ((i <= 0) || (i > MOUSE_MAXBUTTON - 1)) {
676 			warnx("invalid argument `%s'", argv[optind]);
677 			usage();
678 		    }
679 		    rodent.zmap[j] = i;
680 		    ++optind;
681 		}
682 		if ((rodent.zmap[2] != 0) && (rodent.zmap[3] == 0))
683 		    rodent.zmap[3] = rodent.zmap[2] + 1;
684 	    }
685 	    break;
686 
687 	case 'C':
688 	    rodent.clickthreshold = atoi(optarg);
689 	    if ((rodent.clickthreshold < 0) ||
690 	        (rodent.clickthreshold > MAX_CLICKTHRESHOLD)) {
691 	        warnx("invalid argument `%s'", optarg);
692 	        usage();
693 	    }
694 	    break;
695 
696 	case 'D':
697 	    rodent.flags |= ClearDTR;
698 	    break;
699 
700 	case 'F':
701 	    rodent.rate = atoi(optarg);
702 	    if (rodent.rate <= 0) {
703 	        warnx("invalid argument `%s'", optarg);
704 	        usage();
705 	    }
706 	    break;
707 
708 	case 'I':
709 	    pidfile = optarg;
710 	    break;
711 
712 	case 'P':
713 	    rodent.flags |= NoPnP;
714 	    break;
715 
716 	case 'R':
717 	    rodent.flags |= ClearRTS;
718 	    break;
719 
720 	case 'S':
721 	    rodent.baudrate = atoi(optarg);
722 	    if (rodent.baudrate <= 0) {
723 	        warnx("invalid argument `%s'", optarg);
724 	        usage();
725 	    }
726 	    debug("rodent baudrate %d", rodent.baudrate);
727 	    break;
728 
729 	case 't':
730 	    if (strcmp(optarg, "auto") == 0) {
731 		rodent.rtype = MOUSE_PROTO_UNKNOWN;
732 		rodent.flags &= ~NoPnP;
733 		rodent.level = -1;
734 		break;
735 	    }
736 	    for (i = 0; rnames[i]; i++)
737 		if (strcmp(optarg, rnames[i]) == 0) {
738 		    rodent.rtype = i;
739 		    rodent.flags |= NoPnP;
740 		    rodent.level = (i == MOUSE_PROTO_SYSMOUSE) ? 1 : 0;
741 		    break;
742 		}
743 	    if (rnames[i])
744 		break;
745 	    warnx("no such mouse type `%s'", optarg);
746 	    usage();
747 
748 	case 'h':
749 	case '?':
750 	default:
751 	    usage();
752 	}
753 
754     /* fix Z axis mapping */
755     for (i = 0; i < 4; ++i) {
756 	if (rodent.zmap[i] > 0) {
757 	    for (j = 0; j < MOUSE_MAXBUTTON; ++j) {
758 		if (mstate[j] == &bstate[rodent.zmap[i] - 1])
759 		    mstate[j] = &zstate[i];
760 	    }
761 	    rodent.zmap[i] = 1 << (rodent.zmap[i] - 1);
762 	}
763     }
764 
765     /* the default port name */
766     switch(rodent.rtype) {
767     case MOUSE_PROTO_INPORT:
768         /* INPORT and BUS are the same... */
769 	rodent.rtype = MOUSE_PROTO_BUS;
770 	/* FALL THROUGH */
771     default:
772 	if (rodent.portname)
773 	    break;
774 	warnx("no port name specified");
775 	usage();
776     }
777 
778     for (;;) {
779 	if (setjmp(env) == 0) {
780 	    signal(SIGHUP, hup);
781 	    signal(SIGINT , cleanup);
782 	    signal(SIGQUIT, cleanup);
783 	    signal(SIGTERM, cleanup);
784             if ((rodent.mfd = open(rodent.portname, O_RDWR | O_NONBLOCK, 0))
785 		== -1)
786 	        logerr(1, "unable to open %s", rodent.portname);
787             if (r_identify() == MOUSE_PROTO_UNKNOWN) {
788 	        logwarnx("cannot determine mouse type on %s", rodent.portname);
789 	        close(rodent.mfd);
790 	        rodent.mfd = -1;
791             }
792 
793 	    /* print some information */
794             if (identify != ID_NONE) {
795 		if (identify == ID_ALL)
796                     printf("%s %s %s %s\n",
797 		        rodent.portname, r_if(rodent.hw.iftype),
798 		        r_name(rodent.rtype), r_model(rodent.hw.model));
799 		else if (identify & ID_PORT)
800 		    printf("%s\n", rodent.portname);
801 		else if (identify & ID_IF)
802 		    printf("%s\n", r_if(rodent.hw.iftype));
803 		else if (identify & ID_TYPE)
804 		    printf("%s\n", r_name(rodent.rtype));
805 		else if (identify & ID_MODEL)
806 		    printf("%s\n", r_model(rodent.hw.model));
807 		exit(0);
808 	    } else {
809                 debug("port: %s  interface: %s  type: %s  model: %s",
810 		    rodent.portname, r_if(rodent.hw.iftype),
811 		    r_name(rodent.rtype), r_model(rodent.hw.model));
812 	    }
813 
814 	    if (rodent.mfd == -1) {
815 	        /*
816 	         * We cannot continue because of error.  Exit if the
817 		 * program has not become a daemon.  Otherwise, block
818 		 * until the user corrects the problem and issues SIGHUP.
819 	         */
820 	        if (!background)
821 		    exit(1);
822 	        sigpause(0);
823 	    }
824 
825             r_init();			/* call init function */
826 	    moused(ctldev);
827 	}
828 
829 	if (rodent.mfd != -1)
830 	    close(rodent.mfd);
831 	if (rodent.cfd != -1)
832 	    close(rodent.cfd);
833 	rodent.mfd = rodent.cfd = -1;
834     }
835     /* NOT REACHED */
836 
837     exit(0);
838 }
839 
840 static void
841 wsev(int ty, int val)
842 {
843     struct wscons_event ev;
844 
845     ev.type = ty;
846     ev.value = val;
847     if (dbg)
848 	printf("wsev: type=%d value=%d\n", ty, val);
849     if (ioctl(rodent.cfd, WSMUXIO_INJECTEVENT, &ev) < 0)
850 	logwarn("muxio inject event");
851 }
852 
853 static void
854 moused(const char *wsm)
855 {
856     mousestatus_t action0;		/* original mouse action */
857     mousestatus_t action;		/* interrim buffer */
858     mousestatus_t action2;		/* mapped action */
859     int lastbutton = 0;
860     int button;
861     struct pollfd set[3];
862     u_char b;
863     FILE *fp;
864     int flags;
865     int c;
866     int i;
867 
868     if ((rodent.cfd = open(wsm, O_WRONLY, 0)) == -1)
869 	logerr(1, "cannot open %s", wsm);
870 
871     if (!nodaemon && !background) {
872 	if (daemon(0, 0)) {
873 	    logerr(1, "failed to become a daemon");
874 	} else {
875 	    background = TRUE;
876 	    fp = fopen(pidfile, "w");
877 	    if (fp != NULL) {
878 		fprintf(fp, "%d\n", getpid());
879 		fclose(fp);
880 	    }
881 	}
882     }
883 
884     /* clear mouse data */
885     bzero(&action0, sizeof(action0));
886     bzero(&action, sizeof(action));
887     bzero(&action2, sizeof(action2));
888     mouse_button_state = S0;
889     gettimeofday(&mouse_button_state_tv, NULL);
890     mouse_move_delayed = 0;
891     for (i = 0; i < MOUSE_MAXBUTTON; ++i) {
892 	bstate[i].count = 0;
893 	bstate[i].tv = mouse_button_state_tv;
894     }
895     for (i = 0; i < (int)(sizeof(zstate)/sizeof(zstate[0])); ++i) {
896 	zstate[i].count = 0;
897 	zstate[i].tv = mouse_button_state_tv;
898     }
899     flags = 0;
900 
901     /* process mouse data */
902     for (;;) {
903 
904 	set[0].fd = rodent.mfd;
905 	set[0].events = POLLIN;
906 	set[1].fd = rodent.mremsfd;
907 	set[1].events = POLLIN;
908 	set[2].fd = rodent.mremcfd;
909 	set[2].events = POLLIN;
910 
911 	c = poll(set, 3, (rodent.flags & Emulate3Button) ? 20 : INFTIM);
912 	if (c < 0) {                    /* error */
913 	    logwarn("failed to read from mouse");
914 	    continue;
915 	} else if (c == 0) {            /* timeout */
916 	    /* assert(rodent.flags & Emulate3Button) */
917 	    action0.button = action0.obutton;
918 	    action0.dx = action0.dy = action0.dz = 0;
919 	    action0.flags = flags = 0;
920 	    if (r_timeout() && r_statetrans(&action0, &action, A_TIMEOUT)) {
921 		if (dbg > 2)
922 		    debug("flags:%08x buttons:%08x obuttons:%08x",
923 			  action.flags, action.button, action.obutton);
924 	    } else {
925 		action0.obutton = action0.button;
926 		continue;
927 	    }
928 	} else {
929 #if 0
930 	    /*  MouseRemote client connect/disconnect  */
931 	    if (set[1].revents & POLLIN) {
932 		mremote_clientchg(TRUE);
933 		continue;
934 	    }
935 	    if (set[2].revents & POLLIN) {
936 		mremote_clientchg(FALSE);
937 		continue;
938 	    }
939 #endif
940 	    /* mouse movement */
941 	    if (set[0].revents & POLLIN) {
942 		if (read(rodent.mfd, &b, 1) == -1)
943 		    return;
944 		if ((flags = r_protocol(b, &action0)) == 0)
945 		    continue;
946 		r_timestamp(&action0);
947 		r_statetrans(&action0, &action,
948 	    		     A(action0.button & MOUSE_BUTTON1DOWN,
949 	    		       action0.button & MOUSE_BUTTON3DOWN));
950 		debug("flags:%08x buttons:%08x obuttons:%08x", action.flags,
951 		      action.button, action.obutton);
952 	    }
953 	}
954 	action0.obutton = action0.button;
955 	flags &= MOUSE_POSCHANGED;
956 	flags |= action.obutton ^ action.button;
957 	action.flags = flags;
958 
959 	if (flags) {			/* handler detected action */
960 	    r_map(&action, &action2);
961 	    debug("activity : buttons 0x%08x  dx %d  dy %d  dz %d",
962 		action2.button, action2.dx, action2.dy, action2.dz);
963 
964             if (dbg > 1)
965 	        printf("buttons=%x x=%d y=%d z=%d\n", action2.button,
966 		    (int)(action2.dx * rodent.accelx),
967 		    (int)(action2.dy * rodent.accely),
968 		    (int)action2.dz);
969 	    if (action2.dx != 0 && dbg < 2)
970 		wsev(WSCONS_EVENT_MOUSE_DELTA_X, action2.dx * rodent.accelx);
971 	    if (action2.dy != 0 && dbg < 2)
972 		wsev(WSCONS_EVENT_MOUSE_DELTA_Y, -action2.dy * rodent.accely);
973 	    if (action2.dz != 0 && dbg < 2)
974 		wsev(WSCONS_EVENT_MOUSE_DELTA_Z, action2.dz);
975 	    button = lastbutton ^ action2.button;
976 	    lastbutton = action2.button;
977 	    printf("diff=%x buts=%x\n", button, lastbutton);
978 	    for (i = 0; i < 3; i ++) {
979 		if ((button & (1<<i)) && dbg < 2) {
980 		    wsev(lastbutton & (1<<i) ? WSCONS_EVENT_MOUSE_DOWN :
981 			 WSCONS_EVENT_MOUSE_UP, i);
982 		}
983 	    }
984 
985             /*
986 	     * If the Z axis movement is mapped to a imaginary physical
987 	     * button, we need to cook up a corresponding button `up' event
988 	     * after sending a button `down' event.
989 	     */
990             if ((rodent.zmap[0] > 0) && (action.dz != 0)) {
991 		action.obutton = action.button;
992 		action.dx = action.dy = action.dz = 0;
993 	        r_map(&action, &action2);
994 	        debug("activity : buttons 0x%08x  dx %d  dy %d  dz %d",
995 		    action2.button, action2.dx, action2.dy, action2.dz);
996 
997 		/* XXX emplement this */
998 #if 0
999 	        if (extioctl) {
1000 	            r_click(&action2);
1001 	        } else {
1002 	            mouse.operation = MOUSE_ACTION;
1003 	            mouse.u.data.buttons = action2.button;
1004 		    mouse.u.data.x = mouse.u.data.y = mouse.u.data.z = 0;
1005 		    if (dbg < 2)
1006 	                ioctl(rodent.cfd, CONS_MOUSECTL, &mouse);
1007 	        }
1008 #endif
1009 	    }
1010 	}
1011     }
1012     /* NOT REACHED */
1013 }
1014 
1015 static void
1016 hup(int sig)
1017 {
1018     longjmp(env, 1);
1019 }
1020 
1021 static void
1022 cleanup(int sig)
1023 {
1024     if (rodent.rtype == MOUSE_PROTO_X10MOUSEREM)
1025 	unlink(_PATH_MOUSEREMOTE);
1026     exit(0);
1027 }
1028 
1029 /**
1030  ** usage
1031  **
1032  ** Complain, and free the CPU for more worthy tasks
1033  **/
1034 static void
1035 usage(void)
1036 {
1037     fprintf(stderr, "%s\n%s\n%s\n%s\n",
1038 	"usage: moused [-DRcdfs] [-I file] [-F rate] [-r resolution] [-S baudrate]",
1039 	"              [-a X[,Y]] [-m N=M] [-w N] [-z N]",
1040 	"              [-t <mousetype>] [-3 [-E timeout]] -p <port>",
1041 	"       moused [-d] -i <port|if|type|model|all> -p <port>");
1042     exit(1);
1043 }
1044 
1045 /**
1046  ** Mouse interface code, courtesy of XFree86 3.1.2.
1047  **
1048  ** Note: Various bits have been trimmed, and in my shortsighted enthusiasm
1049  ** to clean, reformat and rationalise naming, it's quite possible that
1050  ** some things in here have been broken.
1051  **
1052  ** I hope not 8)
1053  **
1054  ** The following code is derived from a module marked :
1055  **/
1056 
1057 /* $XConsortium: xf86_Mouse.c,v 1.2 94/10/12 20:33:21 kaleb Exp $ */
1058 /* $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86_Mouse.c,v 3.2 1995/01/28
1059  17:03:40 dawes Exp $ */
1060 /*
1061  *
1062  * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.
1063  * Copyright 1993 by David Dawes <dawes@physics.su.oz.au>
1064  *
1065  * Permission to use, copy, modify, distribute, and sell this software and its
1066  * documentation for any purpose is hereby granted without fee, provided that
1067  * the above copyright notice appear in all copies and that both that
1068  * copyright notice and this permission notice appear in supporting
1069  * documentation, and that the names of Thomas Roell and David Dawes not be
1070  * used in advertising or publicity pertaining to distribution of the
1071  * software without specific, written prior permission.  Thomas Roell
1072  * and David Dawes makes no representations about the suitability of this
1073  * software for any purpose.  It is provided "as is" without express or
1074  * implied warranty.
1075  *
1076  * THOMAS ROELL AND DAVID DAWES DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
1077  * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
1078  * FITNESS, IN NO EVENT SHALL THOMAS ROELL OR DAVID DAWES BE LIABLE FOR ANY
1079  * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
1080  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
1081  * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
1082  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1083  *
1084  */
1085 
1086 /**
1087  ** GlidePoint support from XFree86 3.2.
1088  ** Derived from the module:
1089  **/
1090 
1091 /* $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86_Mouse.c,v 3.19 1996/10/16 14:40:51 dawes Exp $ */
1092 /* $XConsortium: xf86_Mouse.c /main/10 1996/01/30 15:16:12 kaleb $ */
1093 
1094 /* the following table must be ordered by MOUSE_PROTO_XXX in mouse.h */
1095 static unsigned char proto[][7] = {
1096     /*  hd_mask hd_id   dp_mask dp_id   bytes b4_mask b4_id */
1097     { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x23,  0x00 }, /* MicroSoft */
1098     {	0xf8,	0x80,	0x00,	0x00,	5,    0x00,  0xff }, /* MouseSystems */
1099     {	0xe0,	0x80,	0x80,	0x00,	3,    0x00,  0xff }, /* Logitech */
1100     {	0xe0,	0x80,	0x80,	0x00,	3,    0x00,  0xff }, /* MMSeries */
1101     { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x33,  0x00 }, /* MouseMan */
1102     {	0xf8,	0x80,	0x00,	0x00,	5,    0x00,  0xff }, /* Bus */
1103     {	0xf8,	0x80,	0x00,	0x00,	5,    0x00,  0xff }, /* InPort */
1104     {	0xc0,	0x00,	0x00,	0x00,	3,    0x00,  0xff }, /* PS/2 mouse */
1105     {	0xe0,	0x80,	0x80,	0x00,	3,    0x00,  0xff }, /* MM HitTablet */
1106     { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x33,  0x00 }, /* GlidePoint */
1107     { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x3f,  0x00 }, /* IntelliMouse */
1108     { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x33,  0x00 }, /* ThinkingMouse */
1109     {	0xf8,	0x80,	0x00,	0x00,	5,    0x00,  0xff }, /* sysmouse */
1110     { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x23,  0x00 }, /* X10 MouseRem */
1111     {	0x80,	0x80,	0x00,	0x00,	5,    0x00,  0xff }, /* KIDSPAD */
1112     {	0xc3,	0xc0,	0x00,	0x00,	6,    0x00,  0xff }, /* VersaPad */
1113 #if notyet
1114     {	0xf8,	0x80,	0x00,	0x00,	5,   ~0x2f,  0x10 }, /* Mariqua */
1115 #endif
1116 };
1117 static unsigned char cur_proto[7];
1118 
1119 static int
1120 r_identify(void)
1121 {
1122     char pnpbuf[256];	/* PnP identifier string may be up to 256 bytes long */
1123     pnpid_t pnpid;
1124     symtab_t *t;
1125     int len;
1126 
1127     rodent.level = 0;
1128 
1129     if (rodent.rtype != MOUSE_PROTO_UNKNOWN)
1130         bcopy(proto[rodent.rtype], cur_proto, sizeof(cur_proto));
1131     rodent.mode.protocol = MOUSE_PROTO_UNKNOWN;
1132     rodent.mode.rate = -1;
1133     rodent.mode.resolution = MOUSE_RES_UNKNOWN;
1134     rodent.mode.accelfactor = 0;
1135     rodent.mode.level = 0;
1136 
1137     /* maybe this is an PnP mouse... */
1138     if (rodent.mode.protocol == MOUSE_PROTO_UNKNOWN) {
1139 
1140         if (rodent.flags & NoPnP)
1141             return rodent.rtype;
1142 	if (((len = pnpgets(pnpbuf)) <= 0) || !pnpparse(&pnpid, pnpbuf, len))
1143             return rodent.rtype;
1144 
1145         debug("PnP serial mouse: '%*.*s' '%*.*s' '%*.*s'",
1146 	    pnpid.neisaid, pnpid.neisaid, pnpid.eisaid,
1147 	    pnpid.ncompat, pnpid.ncompat, pnpid.compat,
1148 	    pnpid.ndescription, pnpid.ndescription, pnpid.description);
1149 
1150 	/* we have a valid PnP serial device ID */
1151         rodent.hw.iftype = MOUSE_IF_SERIAL;
1152 	t = pnpproto(&pnpid);
1153 	if (t != NULL) {
1154             rodent.mode.protocol = t->val;
1155             rodent.hw.model = t->val2;
1156 	} else {
1157             rodent.mode.protocol = MOUSE_PROTO_UNKNOWN;
1158 	}
1159 	if (rodent.mode.protocol == MOUSE_PROTO_INPORT)
1160 	    rodent.mode.protocol = MOUSE_PROTO_BUS;
1161 
1162         /* make final adjustment */
1163 	if (rodent.mode.protocol != MOUSE_PROTO_UNKNOWN) {
1164 	    if (rodent.mode.protocol != rodent.rtype) {
1165 		/* Hmm, the device doesn't agree with the user... */
1166                 if (rodent.rtype != MOUSE_PROTO_UNKNOWN)
1167 	            logwarnx("mouse type mismatch (%s != %s), %s is assumed",
1168 		        r_name(rodent.mode.protocol), r_name(rodent.rtype),
1169 		        r_name(rodent.mode.protocol));
1170 	        rodent.rtype = rodent.mode.protocol;
1171                 bcopy(proto[rodent.rtype], cur_proto, sizeof(cur_proto));
1172 	    }
1173 	}
1174     }
1175 
1176     debug("proto params: %02x %02x %02x %02x %d %02x %02x",
1177 	cur_proto[0], cur_proto[1], cur_proto[2], cur_proto[3],
1178 	cur_proto[4], cur_proto[5], cur_proto[6]);
1179 
1180     return rodent.rtype;
1181 }
1182 
1183 static const char *
1184 r_if(int iftype)
1185 {
1186     const char *s;
1187 
1188     s = gettokenname(rifs, iftype);
1189     return (s == NULL) ? "unknown" : s;
1190 }
1191 
1192 static const char *
1193 r_name(int type)
1194 {
1195     return ((type == MOUSE_PROTO_UNKNOWN)
1196 	|| (type > (int)(sizeof(rnames)/sizeof(rnames[0]) - 1)))
1197 	? "unknown" : rnames[type];
1198 }
1199 
1200 static const char *
1201 r_model(int model)
1202 {
1203     const char *s;
1204 
1205     s = gettokenname(rmodels, model);
1206     return (s == NULL) ? "unknown" : s;
1207 }
1208 
1209 static void
1210 r_init(void)
1211 {
1212     unsigned char buf[16];	/* scrach buffer */
1213     struct pollfd set[1];
1214     const char *s;
1215     char c;
1216     int i;
1217 
1218     /**
1219      ** This comment is a little out of context here, but it contains
1220      ** some useful information...
1221      ********************************************************************
1222      **
1223      ** The following lines take care of the Logitech MouseMan protocols.
1224      **
1225      ** NOTE: There are different versions of both MouseMan and TrackMan!
1226      **       Hence I add another protocol P_LOGIMAN, which the user can
1227      **       specify as MouseMan in his XF86Config file. This entry was
1228      **       formerly handled as a special case of P_MS. However, people
1229      **       who don't have the middle button problem, can still specify
1230      **       Microsoft and use P_MS.
1231      **
1232      ** By default, these mice should use a 3 byte Microsoft protocol
1233      ** plus a 4th byte for the middle button. However, the mouse might
1234      ** have switched to a different protocol before we use it, so I send
1235      ** the proper sequence just in case.
1236      **
1237      ** NOTE: - all commands to (at least the European) MouseMan have to
1238      **         be sent at 1200 Baud.
1239      **       - each command starts with a '*'.
1240      **       - whenever the MouseMan receives a '*', it will switch back
1241      **	 to 1200 Baud. Hence I have to select the desired protocol
1242      **	 first, then select the baud rate.
1243      **
1244      ** The protocols supported by the (European) MouseMan are:
1245      **   -  5 byte packed binary protocol, as with the Mouse Systems
1246      **      mouse. Selected by sequence "*U".
1247      **   -  2 button 3 byte MicroSoft compatible protocol. Selected
1248      **      by sequence "*V".
1249      **   -  3 button 3+1 byte MicroSoft compatible protocol (default).
1250      **      Selected by sequence "*X".
1251      **
1252      ** The following baud rates are supported:
1253      **   -  1200 Baud (default). Selected by sequence "*n".
1254      **   -  9600 Baud. Selected by sequence "*q".
1255      **
1256      ** Selecting a sample rate is no longer supported with the MouseMan!
1257      ** Some additional lines in xf86Config.c take care of ill configured
1258      ** baud rates and sample rates. (The user will get an error.)
1259      */
1260 
1261     switch (rodent.rtype) {
1262 
1263     case MOUSE_PROTO_LOGI:
1264 	/*
1265 	 * The baud rate selection command must be sent at the current
1266 	 * baud rate; try all likely settings
1267 	 */
1268 	setmousespeed(9600, rodent.baudrate, rodentcflags[rodent.rtype]);
1269 	setmousespeed(4800, rodent.baudrate, rodentcflags[rodent.rtype]);
1270 	setmousespeed(2400, rodent.baudrate, rodentcflags[rodent.rtype]);
1271 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1272 	/* select MM series data format */
1273 	write(rodent.mfd, "S", 1);
1274 	setmousespeed(rodent.baudrate, rodent.baudrate,
1275 		      rodentcflags[MOUSE_PROTO_MM]);
1276 	/* select report rate/frequency */
1277 	if      (rodent.rate <= 0)   write(rodent.mfd, "O", 1);
1278 	else if (rodent.rate <= 15)  write(rodent.mfd, "J", 1);
1279 	else if (rodent.rate <= 27)  write(rodent.mfd, "K", 1);
1280 	else if (rodent.rate <= 42)  write(rodent.mfd, "L", 1);
1281 	else if (rodent.rate <= 60)  write(rodent.mfd, "R", 1);
1282 	else if (rodent.rate <= 85)  write(rodent.mfd, "M", 1);
1283 	else if (rodent.rate <= 125) write(rodent.mfd, "Q", 1);
1284 	else			     write(rodent.mfd, "N", 1);
1285 	break;
1286 
1287     case MOUSE_PROTO_LOGIMOUSEMAN:
1288 	/* The command must always be sent at 1200 baud */
1289 	setmousespeed(1200, 1200, rodentcflags[rodent.rtype]);
1290 	write(rodent.mfd, "*X", 2);
1291 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1292 	break;
1293 
1294     case MOUSE_PROTO_HITTAB:
1295 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1296 
1297 	/*
1298 	 * Initialize Hitachi PUMA Plus - Model 1212E to desired settings.
1299 	 * The tablet must be configured to be in MM mode, NO parity,
1300 	 * Binary Format.  xf86Info.sampleRate controls the sensativity
1301 	 * of the tablet.  We only use this tablet for it's 4-button puck
1302 	 * so we don't run in "Absolute Mode"
1303 	 */
1304 	write(rodent.mfd, "z8", 2);	/* Set Parity = "NONE" */
1305 	usleep(50000);
1306 	write(rodent.mfd, "zb", 2);	/* Set Format = "Binary" */
1307 	usleep(50000);
1308 	write(rodent.mfd, "@", 1);	/* Set Report Mode = "Stream" */
1309 	usleep(50000);
1310 	write(rodent.mfd, "R", 1);	/* Set Output Rate = "45 rps" */
1311 	usleep(50000);
1312 	write(rodent.mfd, "I\x20", 2);	/* Set Incrememtal Mode "20" */
1313 	usleep(50000);
1314 	write(rodent.mfd, "E", 1);	/* Set Data Type = "Relative */
1315 	usleep(50000);
1316 
1317 	/* Resolution is in 'lines per inch' on the Hitachi tablet */
1318 	if      (rodent.resolution == MOUSE_RES_LOW) 		c = 'g';
1319 	else if (rodent.resolution == MOUSE_RES_MEDIUMLOW)	c = 'e';
1320 	else if (rodent.resolution == MOUSE_RES_MEDIUMHIGH)	c = 'h';
1321 	else if (rodent.resolution == MOUSE_RES_HIGH)		c = 'd';
1322 	else if (rodent.resolution <=   40) 			c = 'g';
1323 	else if (rodent.resolution <=  100) 			c = 'd';
1324 	else if (rodent.resolution <=  200) 			c = 'e';
1325 	else if (rodent.resolution <=  500) 			c = 'h';
1326 	else if (rodent.resolution <= 1000) 			c = 'j';
1327 	else                                			c = 'd';
1328 	write(rodent.mfd, &c, 1);
1329 	usleep(50000);
1330 
1331 	write(rodent.mfd, "\021", 1);	/* Resume DATA output */
1332 	break;
1333 
1334     case MOUSE_PROTO_THINK:
1335 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1336 	/* the PnP ID string may be sent again, discard it */
1337 	usleep(200000);
1338 	i = FREAD;
1339 	ioctl(rodent.mfd, TIOCFLUSH, &i);
1340 	/* send the command to initialize the beast */
1341 	set[0].fd = rodent.mfd;
1342 	set[0].events = POLLIN;
1343 	for (s = "E5E5"; *s; ++s) {
1344 	    write(rodent.mfd, s, 1);
1345 	    if (poll(set, 1, INFTIM) <= 0)
1346 		break;
1347 	    read(rodent.mfd, &c, 1);
1348 	    debug("%c", c);
1349 	    if (c != *s)
1350 	        break;
1351 	}
1352 	break;
1353 
1354     case MOUSE_PROTO_MSC:
1355 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1356 	if (rodent.flags & ClearDTR) {
1357 	   i = TIOCM_DTR;
1358 	   ioctl(rodent.mfd, TIOCMBIC, &i);
1359         }
1360         if (rodent.flags & ClearRTS) {
1361 	   i = TIOCM_RTS;
1362 	   ioctl(rodent.mfd, TIOCMBIC, &i);
1363         }
1364 	break;
1365 
1366     case MOUSE_PROTO_SYSMOUSE:
1367 	if (rodent.hw.iftype == MOUSE_IF_SYSMOUSE)
1368 	    setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1369 	/* fall through */
1370 
1371     case MOUSE_PROTO_BUS:
1372     case MOUSE_PROTO_INPORT:
1373     case MOUSE_PROTO_PS2:
1374 	if (rodent.rate >= 0)
1375 	    rodent.mode.rate = rodent.rate;
1376 	if (rodent.resolution != MOUSE_RES_UNKNOWN)
1377 	    rodent.mode.resolution = rodent.resolution;
1378 #if 0
1379 	ioctl(rodent.mfd, MOUSE_SETMODE, &rodent.mode);
1380 #endif
1381 	break;
1382 
1383     case MOUSE_PROTO_X10MOUSEREM:
1384 #if 0
1385 	mremote_serversetup();
1386 #endif
1387 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1388 	break;
1389 
1390 
1391     case MOUSE_PROTO_VERSAPAD:
1392 	tcsendbreak(rodent.mfd, 0);	/* send break for 400 msec */
1393 	i = FREAD;
1394 	ioctl(rodent.mfd, TIOCFLUSH, &i);
1395 	set[0].fd = rodent.mfd;
1396 	set[0].events = POLLIN;
1397 	for (i = 0; i < 7; ++i) {
1398 	    if (poll(set, 1, INFTIM) <= 0)
1399 		break;
1400 	    read(rodent.mfd, &c, 1);
1401 	    buf[i] = c;
1402 	}
1403 	debug("%s\n", buf);
1404 	if ((buf[0] != 'V') || (buf[1] != 'P')|| (buf[7] != '\r'))
1405 	    break;
1406 	setmousespeed(9600, rodent.baudrate, rodentcflags[rodent.rtype]);
1407 	tcsendbreak(rodent.mfd, 0);	/* send break for 400 msec again */
1408 	for (i = 0; i < 7; ++i) {
1409 	    if (poll(set, 1, INFTIM) <= 0)
1410 		break;
1411 	    read(rodent.mfd, &c, 1);
1412 	    debug("%c", c);
1413 	    if (c != buf[i])
1414 		break;
1415 	}
1416 	i = FREAD;
1417 	ioctl(rodent.mfd, TIOCFLUSH, &i);
1418 	break;
1419 
1420     default:
1421 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1422 	break;
1423     }
1424 }
1425 
1426 static int
1427 r_protocol(u_char rBuf, mousestatus_t *act)
1428 {
1429     /* MOUSE_MSS_BUTTON?DOWN -> MOUSE_BUTTON?DOWN */
1430     static int butmapmss[4] = {	/* Microsoft, MouseMan, GlidePoint,
1431 				   IntelliMouse, Thinking Mouse */
1432 	0,
1433 	MOUSE_BUTTON3DOWN,
1434 	MOUSE_BUTTON1DOWN,
1435 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1436     };
1437     static int butmapmss2[4] = { /* Microsoft, MouseMan, GlidePoint,
1438 				    Thinking Mouse */
1439 	0,
1440 	MOUSE_BUTTON4DOWN,
1441 	MOUSE_BUTTON2DOWN,
1442 	MOUSE_BUTTON2DOWN | MOUSE_BUTTON4DOWN,
1443     };
1444     /* MOUSE_INTELLI_BUTTON?DOWN -> MOUSE_BUTTON?DOWN */
1445     static int butmapintelli[4] = { /* IntelliMouse, NetMouse, Mie Mouse,
1446 				       MouseMan+ */
1447 	0,
1448 	MOUSE_BUTTON2DOWN,
1449 	MOUSE_BUTTON4DOWN,
1450 	MOUSE_BUTTON2DOWN | MOUSE_BUTTON4DOWN,
1451     };
1452     /* MOUSE_MSC_BUTTON?UP -> MOUSE_BUTTON?DOWN */
1453     static int butmapmsc[8] = {	/* MouseSystems, MMSeries, Logitech,
1454 				   Bus, sysmouse */
1455 	0,
1456 	MOUSE_BUTTON3DOWN,
1457 	MOUSE_BUTTON2DOWN,
1458 	MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN,
1459 	MOUSE_BUTTON1DOWN,
1460 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1461 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN,
1462 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN
1463     };
1464     /* MOUSE_PS2_BUTTON?DOWN -> MOUSE_BUTTON?DOWN */
1465     static int butmapps2[8] = {	/* PS/2 */
1466 	0,
1467 	MOUSE_BUTTON1DOWN,
1468 	MOUSE_BUTTON3DOWN,
1469 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1470 	MOUSE_BUTTON2DOWN,
1471 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN,
1472 	MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN,
1473 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN
1474     };
1475     /* for Hitachi tablet */
1476     static int butmaphit[8] = {	/* MM HitTablet */
1477 	0,
1478 	MOUSE_BUTTON3DOWN,
1479 	MOUSE_BUTTON2DOWN,
1480 	MOUSE_BUTTON1DOWN,
1481 	MOUSE_BUTTON4DOWN,
1482 	MOUSE_BUTTON5DOWN,
1483 	MOUSE_BUTTON6DOWN,
1484 	MOUSE_BUTTON7DOWN,
1485     };
1486     /* for serial VersaPad */
1487     static int butmapversa[8] = { /* VersaPad */
1488 	0,
1489 	0,
1490 	MOUSE_BUTTON3DOWN,
1491 	MOUSE_BUTTON3DOWN,
1492 	MOUSE_BUTTON1DOWN,
1493 	MOUSE_BUTTON1DOWN,
1494 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1495 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1496     };
1497     /* for PS/2 VersaPad */
1498     static int butmapversaps2[8] = { /* VersaPad */
1499 	0,
1500 	MOUSE_BUTTON3DOWN,
1501 	0,
1502 	MOUSE_BUTTON3DOWN,
1503 	MOUSE_BUTTON1DOWN,
1504 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1505 	MOUSE_BUTTON1DOWN,
1506 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1507     };
1508     static int           pBufP = 0;
1509     static unsigned char pBuf[8];
1510     static int		 prev_x, prev_y;
1511     static int		 on = FALSE;
1512     int			 x, y;
1513 
1514     debug("received char 0x%x",(int)rBuf);
1515     if (rodent.rtype == MOUSE_PROTO_KIDSPAD)
1516 	return kidspad(rBuf, act) ;
1517 
1518     /*
1519      * Hack for resyncing: We check here for a package that is:
1520      *  a) illegal (detected by wrong data-package header)
1521      *  b) invalid (0x80 == -128 and that might be wrong for MouseSystems)
1522      *  c) bad header-package
1523      *
1524      * NOTE: b) is a voilation of the MouseSystems-Protocol, since values of
1525      *       -128 are allowed, but since they are very seldom we can easily
1526      *       use them as package-header with no button pressed.
1527      * NOTE/2: On a PS/2 mouse any byte is valid as a data byte. Furthermore,
1528      *         0x80 is not valid as a header byte. For a PS/2 mouse we skip
1529      *         checking data bytes.
1530      *         For resyncing a PS/2 mouse we require the two most significant
1531      *         bits in the header byte to be 0. These are the overflow bits,
1532      *         and in case of an overflow we actually lose sync. Overflows
1533      *         are very rare, however, and we quickly gain sync again after
1534      *         an overflow condition. This is the best we can do. (Actually,
1535      *         we could use bit 0x08 in the header byte for resyncing, since
1536      *         that bit is supposed to be always on, but nobody told
1537      *         Microsoft...)
1538      */
1539 
1540     if (pBufP != 0 && rodent.rtype != MOUSE_PROTO_PS2 &&
1541 	((rBuf & cur_proto[2]) != cur_proto[3] || rBuf == 0x80))
1542     {
1543 	pBufP = 0;		/* skip package */
1544     }
1545 
1546     if (pBufP == 0 && (rBuf & cur_proto[0]) != cur_proto[1])
1547 	return 0;
1548 
1549     /* is there an extra data byte? */
1550     if (pBufP >= cur_proto[4] && (rBuf & cur_proto[0]) != cur_proto[1])
1551     {
1552 	/*
1553 	 * Hack for Logitech MouseMan Mouse - Middle button
1554 	 *
1555 	 * Unfortunately this mouse has variable length packets: the standard
1556 	 * Microsoft 3 byte packet plus an optional 4th byte whenever the
1557 	 * middle button status changes.
1558 	 *
1559 	 * We have already processed the standard packet with the movement
1560 	 * and button info.  Now post an event message with the old status
1561 	 * of the left and right buttons and the updated middle button.
1562 	 */
1563 
1564 	/*
1565 	 * Even worse, different MouseMen and TrackMen differ in the 4th
1566 	 * byte: some will send 0x00/0x20, others 0x01/0x21, or even
1567 	 * 0x02/0x22, so I have to strip off the lower bits.
1568          *
1569          * [JCH-96/01/21]
1570          * HACK for ALPS "fourth button". (It's bit 0x10 of the "fourth byte"
1571          * and it is activated by tapping the glidepad with the finger! 8^)
1572          * We map it to bit bit3, and the reverse map in xf86Events just has
1573          * to be extended so that it is identified as Button 4. The lower
1574          * half of the reverse-map may remain unchanged.
1575 	 */
1576 
1577         /*
1578 	 * [KY-97/08/03]
1579 	 * Receive the fourth byte only when preceding three bytes have
1580 	 * been detected (pBufP >= cur_proto[4]).  In the previous
1581 	 * versions, the test was pBufP == 0; thus, we may have mistakingly
1582 	 * received a byte even if we didn't see anything preceding
1583 	 * the byte.
1584 	 */
1585 
1586 	if ((rBuf & cur_proto[5]) != cur_proto[6]) {
1587             pBufP = 0;
1588 	    return 0;
1589 	}
1590 
1591 	switch (rodent.rtype) {
1592 #if notyet
1593 	case MOUSE_PROTO_MARIQUA:
1594 	    /*
1595 	     * This mouse has 16! buttons in addition to the standard
1596 	     * three of them.  They return 0x10 though 0x1f in the
1597 	     * so-called `ten key' mode and 0x30 though 0x3f in the
1598 	     * `function key' mode.  As there are only 31 bits for
1599 	     * button state (including the standard three), we ignore
1600 	     * the bit 0x20 and don't distinguish the two modes.
1601 	     */
1602 	    act->dx = act->dy = act->dz = 0;
1603 	    act->obutton = act->button;
1604 	    rBuf &= 0x1f;
1605 	    act->button = (1 << (rBuf - 13))
1606                 | (act->obutton & (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN));
1607 	    /*
1608 	     * FIXME: this is a button "down" event. There needs to be
1609 	     * a corresponding button "up" event... XXX
1610 	     */
1611 	    break;
1612 #endif /* notyet */
1613 
1614 	/*
1615 	 * IntelliMouse, NetMouse (including NetMouse Pro) and Mie Mouse
1616 	 * always send the fourth byte, whereas the fourth byte is
1617 	 * optional for GlidePoint and ThinkingMouse. The fourth byte
1618 	 * is also optional for MouseMan+ and FirstMouse+ in their
1619 	 * native mode. It is always sent if they are in the IntelliMouse
1620 	 * compatible mode.
1621 	 */
1622 	case MOUSE_PROTO_INTELLI:	/* IntelliMouse, NetMouse, Mie Mouse,
1623 					   MouseMan+ */
1624 	    act->dx = act->dy = 0;
1625 	    act->dz = (rBuf & 0x08) ? (rBuf & 0x0f) - 16 : (rBuf & 0x0f);
1626 	    if ((act->dz >= 7) || (act->dz <= -7))
1627 		act->dz = 0;
1628 	    act->obutton = act->button;
1629 	    act->button = butmapintelli[(rBuf & MOUSE_MSS_BUTTONS) >> 4]
1630 		| (act->obutton & (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN));
1631 	    break;
1632 
1633 	default:
1634 	    act->dx = act->dy = act->dz = 0;
1635 	    act->obutton = act->button;
1636 	    act->button = butmapmss2[(rBuf & MOUSE_MSS_BUTTONS) >> 4]
1637 		| (act->obutton & (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN));
1638 	    break;
1639 	}
1640 
1641 	act->flags = ((act->dx || act->dy || act->dz) ? MOUSE_POSCHANGED : 0)
1642 	    | (act->obutton ^ act->button);
1643         pBufP = 0;
1644 	return act->flags;
1645     }
1646 
1647     if (pBufP >= cur_proto[4])
1648 	pBufP = 0;
1649     pBuf[pBufP++] = rBuf;
1650     if (pBufP != cur_proto[4])
1651 	return 0;
1652 
1653     /*
1654      * assembly full package
1655      */
1656 
1657     debug("assembled full packet (len %d) %x,%x,%x,%x,%x,%x,%x,%x",
1658 	cur_proto[4],
1659 	pBuf[0], pBuf[1], pBuf[2], pBuf[3],
1660 	pBuf[4], pBuf[5], pBuf[6], pBuf[7]);
1661 
1662     act->dz = 0;
1663     act->obutton = act->button;
1664     switch (rodent.rtype)
1665     {
1666     case MOUSE_PROTO_MS:		/* Microsoft */
1667     case MOUSE_PROTO_LOGIMOUSEMAN:	/* MouseMan/TrackMan */
1668     case MOUSE_PROTO_X10MOUSEREM:	/* X10 MouseRemote */
1669 	act->button = act->obutton & MOUSE_BUTTON4DOWN;
1670 	if (rodent.flags & ChordMiddle)
1671 	    act->button |= ((pBuf[0] & MOUSE_MSS_BUTTONS) == MOUSE_MSS_BUTTONS)
1672 		? MOUSE_BUTTON2DOWN
1673 		: butmapmss[(pBuf[0] & MOUSE_MSS_BUTTONS) >> 4];
1674 	else
1675 	    act->button |= (act->obutton & MOUSE_BUTTON2DOWN)
1676 		| butmapmss[(pBuf[0] & MOUSE_MSS_BUTTONS) >> 4];
1677 
1678 #if 0
1679 	/* Send X10 btn events to remote client (ensure -128-+127 range) */
1680 	if ((rodent.rtype == MOUSE_PROTO_X10MOUSEREM) &&
1681 	    ((pBuf[0] & 0xFC) == 0x44) && (pBuf[2] == 0x3F)) {
1682 	    if (rodent.mremcfd >= 0) {
1683 		unsigned char key = (signed char)(((pBuf[0] & 0x03) << 6) |
1684 						  (pBuf[1] & 0x3F));
1685 		write( rodent.mremcfd, &key, 1 );
1686 	    }
1687 	    return 0;
1688 	}
1689 #endif
1690 
1691 	act->dx = (char)(((pBuf[0] & 0x03) << 6) | (pBuf[1] & 0x3F));
1692 	act->dy = (char)(((pBuf[0] & 0x0C) << 4) | (pBuf[2] & 0x3F));
1693 	break;
1694 
1695     case MOUSE_PROTO_GLIDEPOINT:	/* GlidePoint */
1696     case MOUSE_PROTO_THINK:		/* ThinkingMouse */
1697     case MOUSE_PROTO_INTELLI:		/* IntelliMouse, NetMouse, Mie Mouse,
1698 					   MouseMan+ */
1699 	act->button = (act->obutton & (MOUSE_BUTTON2DOWN | MOUSE_BUTTON4DOWN))
1700             | butmapmss[(pBuf[0] & MOUSE_MSS_BUTTONS) >> 4];
1701 	act->dx = (char)(((pBuf[0] & 0x03) << 6) | (pBuf[1] & 0x3F));
1702 	act->dy = (char)(((pBuf[0] & 0x0C) << 4) | (pBuf[2] & 0x3F));
1703 	break;
1704 
1705     case MOUSE_PROTO_MSC:		/* MouseSystems Corp */
1706 #if notyet
1707     case MOUSE_PROTO_MARIQUA:		/* Mariqua */
1708 #endif
1709 	act->button = butmapmsc[(~pBuf[0]) & MOUSE_MSC_BUTTONS];
1710 	act->dx =    (char)(pBuf[1]) + (char)(pBuf[3]);
1711 	act->dy = - ((char)(pBuf[2]) + (char)(pBuf[4]));
1712 	break;
1713 
1714     case MOUSE_PROTO_HITTAB:		/* MM HitTablet */
1715 	act->button = butmaphit[pBuf[0] & 0x07];
1716 	act->dx = (pBuf[0] & MOUSE_MM_XPOSITIVE) ?   pBuf[1] : - pBuf[1];
1717 	act->dy = (pBuf[0] & MOUSE_MM_YPOSITIVE) ? - pBuf[2] :   pBuf[2];
1718 	break;
1719 
1720     case MOUSE_PROTO_MM:		/* MM Series */
1721     case MOUSE_PROTO_LOGI:		/* Logitech Mice */
1722 	act->button = butmapmsc[pBuf[0] & MOUSE_MSC_BUTTONS];
1723 	act->dx = (pBuf[0] & MOUSE_MM_XPOSITIVE) ?   pBuf[1] : - pBuf[1];
1724 	act->dy = (pBuf[0] & MOUSE_MM_YPOSITIVE) ? - pBuf[2] :   pBuf[2];
1725 	break;
1726 
1727     case MOUSE_PROTO_VERSAPAD:		/* VersaPad */
1728 	act->button = butmapversa[(pBuf[0] & MOUSE_VERSA_BUTTONS) >> 3];
1729 	act->button |= (pBuf[0] & MOUSE_VERSA_TAP) ? MOUSE_BUTTON4DOWN : 0;
1730 	act->dx = act->dy = 0;
1731 	if (!(pBuf[0] & MOUSE_VERSA_IN_USE)) {
1732 	    on = FALSE;
1733 	    break;
1734 	}
1735 	x = (pBuf[2] << 6) | pBuf[1];
1736 	if (x & 0x800)
1737 	    x -= 0x1000;
1738 	y = (pBuf[4] << 6) | pBuf[3];
1739 	if (y & 0x800)
1740 	    y -= 0x1000;
1741 	if (on) {
1742 	    act->dx = prev_x - x;
1743 	    act->dy = prev_y - y;
1744 	} else {
1745 	    on = TRUE;
1746 	}
1747 	prev_x = x;
1748 	prev_y = y;
1749 	break;
1750 
1751     case MOUSE_PROTO_BUS:		/* Bus */
1752     case MOUSE_PROTO_INPORT:		/* InPort */
1753 	act->button = butmapmsc[(~pBuf[0]) & MOUSE_MSC_BUTTONS];
1754 	act->dx =   (char)pBuf[1];
1755 	act->dy = - (char)pBuf[2];
1756 	break;
1757 
1758     case MOUSE_PROTO_PS2:		/* PS/2 */
1759 	act->button = butmapps2[pBuf[0] & MOUSE_PS2_BUTTONS];
1760 	act->dx = (pBuf[0] & MOUSE_PS2_XNEG) ?    pBuf[1] - 256  :  pBuf[1];
1761 	act->dy = (pBuf[0] & MOUSE_PS2_YNEG) ?  -(pBuf[2] - 256) : -pBuf[2];
1762 	/*
1763 	 * Moused usually operates the psm driver at the operation level 1
1764 	 * which sends mouse data in MOUSE_PROTO_SYSMOUSE protocol.
1765 	 * The following code takes effect only when the user explicitly
1766 	 * requets the level 2 at which wheel movement and additional button
1767 	 * actions are encoded in model-dependent formats. At the level 0
1768 	 * the following code is no-op because the psm driver says the model
1769 	 * is MOUSE_MODEL_GENERIC.
1770 	 */
1771 	switch (rodent.hw.model) {
1772 	case MOUSE_MODEL_EXPLORER:
1773 	    /* wheel and additional button data is in the fourth byte */
1774 	    act->dz = (pBuf[3] & MOUSE_EXPLORER_ZNEG)
1775 		? (pBuf[3] & 0x0f) - 16 : (pBuf[3] & 0x0f);
1776 	    act->button |= (pBuf[3] & MOUSE_EXPLORER_BUTTON4DOWN)
1777 		? MOUSE_BUTTON4DOWN : 0;
1778 	    act->button |= (pBuf[3] & MOUSE_EXPLORER_BUTTON5DOWN)
1779 		? MOUSE_BUTTON5DOWN : 0;
1780 	    break;
1781 	case MOUSE_MODEL_INTELLI:
1782 	case MOUSE_MODEL_NET:
1783 	    /* wheel data is in the fourth byte */
1784 	    act->dz = (char)pBuf[3];
1785 	    if ((act->dz >= 7) || (act->dz <= -7))
1786 		act->dz = 0;
1787 	    /* some compatible mice may have additional buttons */
1788 	    act->button |= (pBuf[0] & MOUSE_PS2INTELLI_BUTTON4DOWN)
1789 		? MOUSE_BUTTON4DOWN : 0;
1790 	    act->button |= (pBuf[0] & MOUSE_PS2INTELLI_BUTTON5DOWN)
1791 		? MOUSE_BUTTON5DOWN : 0;
1792 	    break;
1793 	case MOUSE_MODEL_MOUSEMANPLUS:
1794 	    if (((pBuf[0] & MOUSE_PS2PLUS_SYNCMASK) == MOUSE_PS2PLUS_SYNC)
1795 		    && (abs(act->dx) > 191)
1796 		    && MOUSE_PS2PLUS_CHECKBITS(pBuf)) {
1797 		/* the extended data packet encodes button and wheel events */
1798 		switch (MOUSE_PS2PLUS_PACKET_TYPE(pBuf)) {
1799 		case 1:
1800 		    /* wheel data packet */
1801 		    act->dx = act->dy = 0;
1802 		    if (pBuf[2] & 0x80) {
1803 			/* horizontal roller count - ignore it XXX*/
1804 		    } else {
1805 			/* vertical roller count */
1806 			act->dz = (pBuf[2] & MOUSE_PS2PLUS_ZNEG)
1807 			    ? (pBuf[2] & 0x0f) - 16 : (pBuf[2] & 0x0f);
1808 		    }
1809 		    act->button |= (pBuf[2] & MOUSE_PS2PLUS_BUTTON4DOWN)
1810 			? MOUSE_BUTTON4DOWN : 0;
1811 		    act->button |= (pBuf[2] & MOUSE_PS2PLUS_BUTTON5DOWN)
1812 			? MOUSE_BUTTON5DOWN : 0;
1813 		    break;
1814 		case 2:
1815 		    /* this packet type is reserved by Logitech */
1816 		    /*
1817 		     * IBM ScrollPoint Mouse uses this packet type to
1818 		     * encode both vertical and horizontal scroll movement.
1819 		     */
1820 		    act->dx = act->dy = 0;
1821 		    /* horizontal roller count */
1822 		    if (pBuf[2] & 0x0f)
1823 			act->dz = (pBuf[2] & MOUSE_SPOINT_WNEG) ? -2 : 2;
1824 		    /* vertical roller count */
1825 		    if (pBuf[2] & 0xf0)
1826 			act->dz = (pBuf[2] & MOUSE_SPOINT_ZNEG) ? -1 : 1;
1827 #if 0
1828 		    /* vertical roller count */
1829 		    act->dz = (pBuf[2] & MOUSE_SPOINT_ZNEG)
1830 			? ((pBuf[2] >> 4) & 0x0f) - 16
1831 			: ((pBuf[2] >> 4) & 0x0f);
1832 		    /* horizontal roller count */
1833 		    act->dw = (pBuf[2] & MOUSE_SPOINT_WNEG)
1834 			? (pBuf[2] & 0x0f) - 16 : (pBuf[2] & 0x0f);
1835 #endif
1836 		    break;
1837 		case 0:
1838 		    /* device type packet - shouldn't happen */
1839 		    /* FALL THROUGH */
1840 		default:
1841 		    act->dx = act->dy = 0;
1842 		    act->button = act->obutton;
1843             	    debug("unknown PS2++ packet type %d: 0x%02x 0x%02x 0x%02x\n",
1844 			  MOUSE_PS2PLUS_PACKET_TYPE(pBuf),
1845 			  pBuf[0], pBuf[1], pBuf[2]);
1846 		    break;
1847 		}
1848 	    } else {
1849 		/* preserve button states */
1850 		act->button |= act->obutton & MOUSE_EXTBUTTONS;
1851 	    }
1852 	    break;
1853 	case MOUSE_MODEL_GLIDEPOINT:
1854 	    /* `tapping' action */
1855 	    act->button |= ((pBuf[0] & MOUSE_PS2_TAP)) ? 0 : MOUSE_BUTTON4DOWN;
1856 	    break;
1857 	case MOUSE_MODEL_NETSCROLL:
1858 	    /* three addtional bytes encode buttons and wheel events */
1859 	    act->button |= (pBuf[3] & MOUSE_PS2_BUTTON3DOWN)
1860 		? MOUSE_BUTTON4DOWN : 0;
1861 	    act->button |= (pBuf[3] & MOUSE_PS2_BUTTON1DOWN)
1862 		? MOUSE_BUTTON5DOWN : 0;
1863 	    act->dz = (pBuf[3] & MOUSE_PS2_XNEG) ? pBuf[4] - 256 : pBuf[4];
1864 	    break;
1865 	case MOUSE_MODEL_THINK:
1866 	    /* the fourth button state in the first byte */
1867 	    act->button |= (pBuf[0] & MOUSE_PS2_TAP) ? MOUSE_BUTTON4DOWN : 0;
1868 	    break;
1869 	case MOUSE_MODEL_VERSAPAD:
1870 	    act->button = butmapversaps2[pBuf[0] & MOUSE_PS2VERSA_BUTTONS];
1871 	    act->button |=
1872 		(pBuf[0] & MOUSE_PS2VERSA_TAP) ? MOUSE_BUTTON4DOWN : 0;
1873 	    act->dx = act->dy = 0;
1874 	    if (!(pBuf[0] & MOUSE_PS2VERSA_IN_USE)) {
1875 		on = FALSE;
1876 		break;
1877 	    }
1878 	    x = ((pBuf[4] << 8) & 0xf00) | pBuf[1];
1879 	    if (x & 0x800)
1880 		x -= 0x1000;
1881 	    y = ((pBuf[4] << 4) & 0xf00) | pBuf[2];
1882 	    if (y & 0x800)
1883 		y -= 0x1000;
1884 	    if (on) {
1885 		act->dx = prev_x - x;
1886 		act->dy = prev_y - y;
1887 	    } else {
1888 		on = TRUE;
1889 	    }
1890 	    prev_x = x;
1891 	    prev_y = y;
1892 	    break;
1893 	case MOUSE_MODEL_4D:
1894 	    act->dx = (pBuf[1] & 0x80) ?    pBuf[1] - 256  :  pBuf[1];
1895 	    act->dy = (pBuf[2] & 0x80) ?  -(pBuf[2] - 256) : -pBuf[2];
1896 	    switch (pBuf[0] & MOUSE_4D_WHEELBITS) {
1897 	    case 0x10:
1898 		act->dz = 1;
1899 		break;
1900 	    case 0x30:
1901 		act->dz = -1;
1902 		break;
1903 	    case 0x40:	/* 2nd wheel rolling right XXX */
1904 		act->dz = 2;
1905 		break;
1906 	    case 0xc0:	/* 2nd wheel rolling left XXX */
1907 		act->dz = -2;
1908 		break;
1909 	    }
1910 	    break;
1911 	case MOUSE_MODEL_4DPLUS:
1912 	    if ((act->dx < 16 - 256) && (act->dy > 256 - 16)) {
1913 		act->dx = act->dy = 0;
1914 		if (pBuf[2] & MOUSE_4DPLUS_BUTTON4DOWN)
1915 		    act->button |= MOUSE_BUTTON4DOWN;
1916 		act->dz = (pBuf[2] & MOUSE_4DPLUS_ZNEG)
1917 			      ? ((pBuf[2] & 0x07) - 8) : (pBuf[2] & 0x07);
1918 	    } else {
1919 		/* preserve previous button states */
1920 		act->button |= act->obutton & MOUSE_EXTBUTTONS;
1921 	    }
1922 	    break;
1923 	case MOUSE_MODEL_GENERIC:
1924 	default:
1925 	    break;
1926 	}
1927 	break;
1928 
1929     case MOUSE_PROTO_SYSMOUSE:		/* sysmouse */
1930 	act->button = butmapmsc[(~pBuf[0]) & MOUSE_SYS_STDBUTTONS];
1931 	act->dx =    (char)(pBuf[1]) + (char)(pBuf[3]);
1932 	act->dy = - ((char)(pBuf[2]) + (char)(pBuf[4]));
1933 	if (rodent.level == 1) {
1934 	    act->dz = ((char)(pBuf[5] << 1) + (char)(pBuf[6] << 1))/2;
1935 	    act->button |= ((~pBuf[7] & MOUSE_SYS_EXTBUTTONS) << 3);
1936 	}
1937 	break;
1938 
1939     default:
1940 	return 0;
1941     }
1942     /*
1943      * We don't reset pBufP here yet, as there may be an additional data
1944      * byte in some protocols. See above.
1945      */
1946 
1947     /* has something changed? */
1948     act->flags = ((act->dx || act->dy || act->dz) ? MOUSE_POSCHANGED : 0)
1949 	| (act->obutton ^ act->button);
1950 
1951     return act->flags;
1952 }
1953 
1954 static int
1955 r_statetrans(mousestatus_t *a1, mousestatus_t *a2, int trans)
1956 {
1957     int changed;
1958     int flags;
1959 
1960     a2->dx = a1->dx;
1961     a2->dy = a1->dy;
1962     a2->dz = a1->dz;
1963     a2->obutton = a2->button;
1964     a2->button = a1->button;
1965     a2->flags = a1->flags;
1966     changed = FALSE;
1967 
1968     if (rodent.flags & Emulate3Button) {
1969 	if (dbg > 2)
1970 	    debug("state:%d, trans:%d -> state:%d",
1971 		  mouse_button_state, trans,
1972 		  states[mouse_button_state].s[trans]);
1973 	/*
1974 	 * Avoid re-ordering button and movement events. While a button
1975 	 * event is deferred, throw away up to BUTTON2_MAXMOVE movement
1976 	 * events to allow for mouse jitter. If more movement events
1977 	 * occur, then complete the deferred button events immediately.
1978 	 */
1979 	if ((a2->dx != 0 || a2->dy != 0) &&
1980 	    S_DELAYED(states[mouse_button_state].s[trans])) {
1981 		if (++mouse_move_delayed > BUTTON2_MAXMOVE) {
1982 			mouse_move_delayed = 0;
1983 			mouse_button_state =
1984 			    states[mouse_button_state].s[A_TIMEOUT];
1985 			changed = TRUE;
1986 		} else
1987 			a2->dx = a2->dy = 0;
1988 	} else
1989 		mouse_move_delayed = 0;
1990 	if (mouse_button_state != states[mouse_button_state].s[trans])
1991 		changed = TRUE;
1992 	if (changed)
1993 		gettimeofday(&mouse_button_state_tv, NULL);
1994 	mouse_button_state = states[mouse_button_state].s[trans];
1995 	a2->button &=
1996 	    ~(MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN);
1997 	a2->button &= states[mouse_button_state].mask;
1998 	a2->button |= states[mouse_button_state].buttons;
1999 	flags = a2->flags & MOUSE_POSCHANGED;
2000 	flags |= a2->obutton ^ a2->button;
2001 	if (flags & MOUSE_BUTTON2DOWN) {
2002 	    a2->flags = flags & MOUSE_BUTTON2DOWN;
2003 	    r_timestamp(a2);
2004 	}
2005 	a2->flags = flags;
2006     }
2007     return changed;
2008 }
2009 
2010 /* phisical to logical button mapping */
2011 static int p2l[MOUSE_MAXBUTTON] = {
2012     MOUSE_BUTTON1DOWN, MOUSE_BUTTON2DOWN, MOUSE_BUTTON3DOWN, MOUSE_BUTTON4DOWN,
2013     MOUSE_BUTTON5DOWN, MOUSE_BUTTON6DOWN, MOUSE_BUTTON7DOWN, MOUSE_BUTTON8DOWN,
2014     0x00000100,        0x00000200,        0x00000400,        0x00000800,
2015     0x00001000,        0x00002000,        0x00004000,        0x00008000,
2016     0x00010000,        0x00020000,        0x00040000,        0x00080000,
2017     0x00100000,        0x00200000,        0x00400000,        0x00800000,
2018     0x01000000,        0x02000000,        0x04000000,        0x08000000,
2019     0x10000000,        0x20000000,        0x40000000,
2020 };
2021 
2022 static char *
2023 skipspace(char *s)
2024 {
2025     while(isspace((unsigned char)*s))
2026 	++s;
2027     return s;
2028 }
2029 
2030 static int
2031 r_installmap(char *arg)
2032 {
2033     int pbutton;
2034     int lbutton;
2035     char *s;
2036 
2037     while (*arg) {
2038 	arg = skipspace(arg);
2039 	s = arg;
2040 	while (isdigit((unsigned char)*arg))
2041 	    ++arg;
2042 	arg = skipspace(arg);
2043 	if ((arg <= s) || (*arg != '='))
2044 	    return FALSE;
2045 	lbutton = atoi(s);
2046 
2047 	arg = skipspace(++arg);
2048 	s = arg;
2049 	while (isdigit((unsigned char)*arg))
2050 	    ++arg;
2051 	if ((arg <= s) || (!isspace((unsigned char)*arg) && (*arg != '\0')))
2052 	    return FALSE;
2053 	pbutton = atoi(s);
2054 
2055 	if ((lbutton <= 0) || (lbutton > MOUSE_MAXBUTTON))
2056 	    return FALSE;
2057 	if ((pbutton <= 0) || (pbutton > MOUSE_MAXBUTTON))
2058 	    return FALSE;
2059 	p2l[pbutton - 1] = 1 << (lbutton - 1);
2060 	mstate[lbutton - 1] = &bstate[pbutton - 1];
2061     }
2062 
2063     return TRUE;
2064 }
2065 
2066 static void
2067 r_map(mousestatus_t *act1, mousestatus_t *act2)
2068 {
2069     register int pb;
2070     register int pbuttons;
2071     int lbuttons;
2072 
2073     pbuttons = act1->button;
2074     lbuttons = 0;
2075 
2076     act2->obutton = act2->button;
2077     if (pbuttons & rodent.wmode) {
2078 	pbuttons &= ~rodent.wmode;
2079 	act1->dz = act1->dy;
2080 	act1->dx = 0;
2081 	act1->dy = 0;
2082     }
2083     act2->dx = act1->dx;
2084     act2->dy = act1->dy;
2085     act2->dz = act1->dz;
2086 
2087     switch (rodent.zmap[0]) {
2088     case 0:	/* do nothing */
2089 	break;
2090     case MOUSE_XAXIS:
2091 	if (act1->dz != 0) {
2092 	    act2->dx = act1->dz;
2093 	    act2->dz = 0;
2094 	}
2095 	break;
2096     case MOUSE_YAXIS:
2097 	if (act1->dz != 0) {
2098 	    act2->dy = act1->dz;
2099 	    act2->dz = 0;
2100 	}
2101 	break;
2102     default:	/* buttons */
2103 	pbuttons &= ~(rodent.zmap[0] | rodent.zmap[1]
2104 		    | rodent.zmap[2] | rodent.zmap[3]);
2105 	if ((act1->dz < -1) && rodent.zmap[2]) {
2106 	    pbuttons |= rodent.zmap[2];
2107 	    zstate[2].count = 1;
2108 	} else if (act1->dz < 0) {
2109 	    pbuttons |= rodent.zmap[0];
2110 	    zstate[0].count = 1;
2111 	} else if ((act1->dz > 1) && rodent.zmap[3]) {
2112 	    pbuttons |= rodent.zmap[3];
2113 	    zstate[3].count = 1;
2114 	} else if (act1->dz > 0) {
2115 	    pbuttons |= rodent.zmap[1];
2116 	    zstate[1].count = 1;
2117 	}
2118 	act2->dz = 0;
2119 	break;
2120     }
2121 
2122     for (pb = 0; (pb < MOUSE_MAXBUTTON) && (pbuttons != 0); ++pb) {
2123 	lbuttons |= (pbuttons & 1) ? p2l[pb] : 0;
2124 	pbuttons >>= 1;
2125     }
2126     act2->button = lbuttons;
2127 
2128     act2->flags = ((act2->dx || act2->dy || act2->dz) ? MOUSE_POSCHANGED : 0)
2129 	| (act2->obutton ^ act2->button);
2130 }
2131 
2132 static void
2133 r_timestamp(mousestatus_t *act)
2134 {
2135     struct timeval tv;
2136     struct timeval tv1;
2137     struct timeval tv2;
2138     struct timeval tv3;
2139     int button;
2140     int mask;
2141     int i;
2142 
2143     mask = act->flags & MOUSE_BUTTONS;
2144 #if 0
2145     if (mask == 0)
2146 	return;
2147 #endif
2148 
2149     gettimeofday(&tv1, NULL);
2150 
2151     /* double click threshold */
2152     tv2.tv_sec = rodent.clickthreshold/1000;
2153     tv2.tv_usec = (rodent.clickthreshold%1000)*1000;
2154     timersub(&tv1, &tv2, &tv);
2155     debug("tv:  %ld %ld", (long)tv.tv_sec, (long)tv.tv_usec);
2156 
2157     /* 3 button emulation timeout */
2158     tv2.tv_sec = rodent.button2timeout/1000;
2159     tv2.tv_usec = (rodent.button2timeout%1000)*1000;
2160     timersub(&tv1, &tv2, &tv3);
2161 
2162     button = MOUSE_BUTTON1DOWN;
2163     for (i = 0; (i < MOUSE_MAXBUTTON) && (mask != 0); ++i) {
2164         if (mask & 1) {
2165             if (act->button & button) {
2166                 /* the button is down */
2167     		debug("  :  %ld %ld",
2168 		    (long)bstate[i].tv.tv_sec, (long)bstate[i].tv.tv_usec);
2169 		if (timercmp(&tv, &bstate[i].tv, >)) {
2170                     bstate[i].count = 1;
2171                 } else {
2172                     ++bstate[i].count;
2173                 }
2174 		bstate[i].tv = tv1;
2175             } else {
2176                 /* the button is up */
2177                 bstate[i].tv = tv1;
2178             }
2179         } else {
2180 	    if (act->button & button) {
2181 		/* the button has been down */
2182 		if (timercmp(&tv3, &bstate[i].tv, >)) {
2183 		    bstate[i].count = 1;
2184 		    bstate[i].tv = tv1;
2185 		    act->flags |= button;
2186 		    debug("button %d timeout", i + 1);
2187 		}
2188 	    } else {
2189 		/* the button has been up */
2190 	    }
2191 	}
2192 	button <<= 1;
2193 	mask >>= 1;
2194     }
2195 }
2196 
2197 static int
2198 r_timeout(void)
2199 {
2200     struct timeval tv;
2201     struct timeval tv1;
2202     struct timeval tv2;
2203 
2204     if (states[mouse_button_state].timeout)
2205 	return TRUE;
2206     gettimeofday(&tv1, NULL);
2207     tv2.tv_sec = rodent.button2timeout/1000;
2208     tv2.tv_usec = (rodent.button2timeout%1000)*1000;
2209     timersub(&tv1, &tv2, &tv);
2210     return timercmp(&tv, &mouse_button_state_tv, >);
2211 }
2212 
2213 /* $XConsortium: posix_tty.c,v 1.3 95/01/05 20:42:55 kaleb Exp $ */
2214 /* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/shared/posix_tty.c,v 3.4 1995/01/28 17:05:03 dawes Exp $ */
2215 /*
2216  * Copyright 1993 by David Dawes <dawes@physics.su.oz.au>
2217  *
2218  * Permission to use, copy, modify, distribute, and sell this software and its
2219  * documentation for any purpose is hereby granted without fee, provided that
2220  * the above copyright notice appear in all copies and that both that
2221  * copyright notice and this permission notice appear in supporting
2222  * documentation, and that the name of David Dawes
2223  * not be used in advertising or publicity pertaining to distribution of
2224  * the software without specific, written prior permission.
2225  * David Dawes makes no representations about the suitability of this
2226  * software for any purpose.  It is provided "as is" without express or
2227  * implied warranty.
2228  *
2229  * DAVID DAWES DISCLAIMS ALL WARRANTIES WITH REGARD TO
2230  * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
2231  * FITNESS, IN NO EVENT SHALL DAVID DAWES BE LIABLE FOR
2232  * ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
2233  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
2234  * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
2235  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
2236  *
2237  */
2238 
2239 
2240 static void
2241 setmousespeed(int old, int new, unsigned cflag)
2242 {
2243 	struct termios tty;
2244 	const char *c;
2245 
2246 	if (tcgetattr(rodent.mfd, &tty) < 0)
2247 	{
2248 		logwarn("unable to get status of mouse fd");
2249 		return;
2250 	}
2251 
2252 	tty.c_iflag = IGNBRK | IGNPAR;
2253 	tty.c_oflag = 0;
2254 	tty.c_lflag = 0;
2255 	tty.c_cflag = (tcflag_t)cflag;
2256 	tty.c_cc[VTIME] = 0;
2257 	tty.c_cc[VMIN] = 1;
2258 
2259 	switch (old)
2260 	{
2261 	case 9600:
2262 		cfsetispeed(&tty, B9600);
2263 		cfsetospeed(&tty, B9600);
2264 		break;
2265 	case 4800:
2266 		cfsetispeed(&tty, B4800);
2267 		cfsetospeed(&tty, B4800);
2268 		break;
2269 	case 2400:
2270 		cfsetispeed(&tty, B2400);
2271 		cfsetospeed(&tty, B2400);
2272 		break;
2273 	case 1200:
2274 	default:
2275 		cfsetispeed(&tty, B1200);
2276 		cfsetospeed(&tty, B1200);
2277 	}
2278 
2279 	if (tcsetattr(rodent.mfd, TCSADRAIN, &tty) < 0)
2280 	{
2281 		logwarn("unable to set status of mouse fd");
2282 		return;
2283 	}
2284 
2285 	switch (new)
2286 	{
2287 	case 9600:
2288 		c = "*q";
2289 		cfsetispeed(&tty, B9600);
2290 		cfsetospeed(&tty, B9600);
2291 		break;
2292 	case 4800:
2293 		c = "*p";
2294 		cfsetispeed(&tty, B4800);
2295 		cfsetospeed(&tty, B4800);
2296 		break;
2297 	case 2400:
2298 		c = "*o";
2299 		cfsetispeed(&tty, B2400);
2300 		cfsetospeed(&tty, B2400);
2301 		break;
2302 	case 1200:
2303 	default:
2304 		c = "*n";
2305 		cfsetispeed(&tty, B1200);
2306 		cfsetospeed(&tty, B1200);
2307 	}
2308 
2309 	if (rodent.rtype == MOUSE_PROTO_LOGIMOUSEMAN
2310 	    || rodent.rtype == MOUSE_PROTO_LOGI)
2311 	{
2312 		if (write(rodent.mfd, c, 2) != 2)
2313 		{
2314 			logwarn("unable to write to mouse fd");
2315 			return;
2316 		}
2317 	}
2318 	usleep(100000);
2319 
2320 	if (tcsetattr(rodent.mfd, TCSADRAIN, &tty) < 0)
2321 		logwarn("unable to set status of mouse fd");
2322 }
2323 
2324 /*
2325  * PnP COM device support
2326  *
2327  * It's a simplistic implementation, but it works :-)
2328  * KY, 31/7/97.
2329  */
2330 
2331 /*
2332  * Try to elicit a PnP ID as described in
2333  * Microsoft, Hayes: "Plug and Play External COM Device Specification,
2334  * rev 1.00", 1995.
2335  *
2336  * The routine does not fully implement the COM Enumerator as par Section
2337  * 2.1 of the document.  In particular, we don't have idle state in which
2338  * the driver software monitors the com port for dynamic connection or
2339  * removal of a device at the port, because `moused' simply quits if no
2340  * device is found.
2341  *
2342  * In addition, as PnP COM device enumeration procedure slightly has
2343  * changed since its first publication, devices which follow earlier
2344  * revisions of the above spec. may fail to respond if the rev 1.0
2345  * procedure is used. XXX
2346  */
2347 static int
2348 pnpwakeup1(void)
2349 {
2350     struct pollfd set[1];
2351     int i;
2352 
2353     /*
2354      * This is the procedure described in rev 1.0 of PnP COM device spec.
2355      * Unfortunately, some devices which comform to earlier revisions of
2356      * the spec gets confused and do not return the ID string...
2357      */
2358     debug("PnP COM device rev 1.0 probe...");
2359 
2360     /* port initialization (2.1.2) */
2361     ioctl(rodent.mfd, TIOCMGET, &i);
2362     i |= TIOCM_DTR;		/* DTR = 1 */
2363     i &= ~TIOCM_RTS;		/* RTS = 0 */
2364     ioctl(rodent.mfd, TIOCMSET, &i);
2365     usleep(240000);
2366 
2367     /*
2368      * The PnP COM device spec. dictates that the mouse must set DSR
2369      * in response to DTR (by hardware or by software) and that if DSR is
2370      * not asserted, the host computer should think that there is no device
2371      * at this serial port.  But some mice just don't do that...
2372      */
2373     ioctl(rodent.mfd, TIOCMGET, &i);
2374     debug("modem status 0%o", i);
2375     if ((i & TIOCM_DSR) == 0)
2376 	return FALSE;
2377 
2378     /* port setup, 1st phase (2.1.3) */
2379     setmousespeed(1200, 1200, (CS7 | CREAD | CLOCAL | HUPCL));
2380     i = TIOCM_DTR | TIOCM_RTS;	/* DTR = 0, RTS = 0 */
2381     ioctl(rodent.mfd, TIOCMBIC, &i);
2382     usleep(240000);
2383     i = TIOCM_DTR;		/* DTR = 1, RTS = 0 */
2384     ioctl(rodent.mfd, TIOCMBIS, &i);
2385     usleep(240000);
2386 
2387     /* wait for response, 1st phase (2.1.4) */
2388     i = FREAD;
2389     ioctl(rodent.mfd, TIOCFLUSH, &i);
2390     i = TIOCM_RTS;		/* DTR = 1, RTS = 1 */
2391     ioctl(rodent.mfd, TIOCMBIS, &i);
2392 
2393     /* try to read something */
2394     set[0].fd = rodent.mfd;
2395     set[0].events = POLLIN;
2396     if (poll(set, 1, 240) > 0) {
2397 	debug("pnpwakeup1(): valid response in first phase.");
2398 	return TRUE;
2399     }
2400 
2401     /* port setup, 2nd phase (2.1.5) */
2402     i = TIOCM_DTR | TIOCM_RTS;	/* DTR = 0, RTS = 0 */
2403     ioctl(rodent.mfd, TIOCMBIC, &i);
2404     usleep(240000);
2405 
2406     /* wait for respose, 2nd phase (2.1.6) */
2407     i = FREAD;
2408     ioctl(rodent.mfd, TIOCFLUSH, &i);
2409     i = TIOCM_DTR | TIOCM_RTS;	/* DTR = 1, RTS = 1 */
2410     ioctl(rodent.mfd, TIOCMBIS, &i);
2411 
2412     /* try to read something */
2413     if (poll(set, 1, 240) > 0) {
2414 	debug("pnpwakeup1(): valid response in second phase.");
2415 	return TRUE;
2416     }
2417 
2418     return FALSE;
2419 }
2420 
2421 static int
2422 pnpwakeup2(void)
2423 {
2424     struct pollfd set[1];
2425     int i;
2426 
2427     /*
2428      * This is a simplified procedure; it simply toggles RTS.
2429      */
2430     debug("alternate probe...");
2431 
2432     ioctl(rodent.mfd, TIOCMGET, &i);
2433     i |= TIOCM_DTR;		/* DTR = 1 */
2434     i &= ~TIOCM_RTS;		/* RTS = 0 */
2435     ioctl(rodent.mfd, TIOCMSET, &i);
2436     usleep(240000);
2437 
2438     setmousespeed(1200, 1200, (CS7 | CREAD | CLOCAL | HUPCL));
2439 
2440     /* wait for respose */
2441     i = FREAD;
2442     ioctl(rodent.mfd, TIOCFLUSH, &i);
2443     i = TIOCM_DTR | TIOCM_RTS;	/* DTR = 1, RTS = 1 */
2444     ioctl(rodent.mfd, TIOCMBIS, &i);
2445 
2446     /* try to read something */
2447     set[0].fd = rodent.mfd;
2448     set[0].events = POLLIN;
2449     if (poll(set, 1, 240) > 0) {
2450 	debug("pnpwakeup2(): valid response.");
2451 	return TRUE;
2452     }
2453 
2454     return FALSE;
2455 }
2456 
2457 static int
2458 pnpgets(char *buf)
2459 {
2460     struct pollfd set[1];
2461     int begin;
2462     int i;
2463     char c;
2464 
2465     if (!pnpwakeup1() && !pnpwakeup2()) {
2466 	/*
2467 	 * According to PnP spec, we should set DTR = 1 and RTS = 0 while
2468 	 * in idle state.  But, `moused' shall set DTR = RTS = 1 and proceed,
2469 	 * assuming there is something at the port even if it didn't
2470 	 * respond to the PnP enumeration procedure.
2471 	 */
2472 	i = TIOCM_DTR | TIOCM_RTS;		/* DTR = 1, RTS = 1 */
2473 	ioctl(rodent.mfd, TIOCMBIS, &i);
2474 	return 0;
2475     }
2476 
2477     /* collect PnP COM device ID (2.1.7) */
2478     begin = -1;
2479     i = 0;
2480     usleep(240000);	/* the mouse must send `Begin ID' within 200msec */
2481     while (read(rodent.mfd, &c, 1) == 1) {
2482 	/* we may see "M", or "M3..." before `Begin ID' */
2483 	buf[i++] = c;
2484         if ((c == 0x08) || (c == 0x28)) {	/* Begin ID */
2485 	    debug("begin-id %02x", c);
2486 	    begin = i - 1;
2487 	    break;
2488         }
2489         debug("%c %02x", c, c);
2490 	if (i >= 256)
2491 	    break;
2492     }
2493     if (begin < 0) {
2494 	/* we haven't seen `Begin ID' in time... */
2495 	goto connect_idle;
2496     }
2497 
2498     ++c;			/* make it `End ID' */
2499     set[0].fd = rodent.mfd;
2500     set[0].events = POLLIN;
2501     for (;;) {
2502         if (poll(set, 1, 240) <= 0)
2503 	    break;
2504 
2505 	read(rodent.mfd, &buf[i], 1);
2506         if (buf[i++] == c)	/* End ID */
2507 	    break;
2508 	if (i >= 256)
2509 	    break;
2510     }
2511     if (begin > 0) {
2512 	i -= begin;
2513 	bcopy(&buf[begin], &buf[0], i);
2514     }
2515     /* string may not be human readable... */
2516     debug("len:%d, '%-*.*s'", i, i, i, buf);
2517 
2518     if (buf[i - 1] == c)
2519 	return i;		/* a valid PnP string */
2520 
2521     /*
2522      * According to PnP spec, we should set DTR = 1 and RTS = 0 while
2523      * in idle state.  But, `moused' shall leave the modem control lines
2524      * as they are. See above.
2525      */
2526 connect_idle:
2527 
2528     /* we may still have something in the buffer */
2529     return ((i > 0) ? i : 0);
2530 }
2531 
2532 static int
2533 pnpparse(pnpid_t *id, char *buf, int len)
2534 {
2535     char s[3];
2536     int offset;
2537     int sum = 0;
2538     int i, j;
2539 
2540     id->revision = 0;
2541     id->eisaid = NULL;
2542     id->serial = NULL;
2543     id->class = NULL;
2544     id->compat = NULL;
2545     id->description = NULL;
2546     id->neisaid = 0;
2547     id->nserial = 0;
2548     id->nclass = 0;
2549     id->ncompat = 0;
2550     id->ndescription = 0;
2551 
2552     if ((buf[0] != 0x28) && (buf[0] != 0x08)) {
2553 	/* non-PnP mice */
2554 	switch(buf[0]) {
2555 	default:
2556 	    return FALSE;
2557 	case 'M': /* Microsoft */
2558 	    id->eisaid = "PNP0F01";
2559 	    break;
2560 	case 'H': /* MouseSystems */
2561 	    id->eisaid = "PNP0F04";
2562 	    break;
2563 	}
2564 	id->neisaid = strlen(id->eisaid);
2565 	id->class = "MOUSE";
2566 	id->nclass = strlen(id->class);
2567 	debug("non-PnP mouse '%c'", buf[0]);
2568 	return TRUE;
2569     }
2570 
2571     /* PnP mice */
2572     offset = 0x28 - buf[0];
2573 
2574     /* calculate checksum */
2575     for (i = 0; i < len - 3; ++i) {
2576 	sum += buf[i];
2577 	buf[i] += offset;
2578     }
2579     sum += buf[len - 1];
2580     for (; i < len; ++i)
2581 	buf[i] += offset;
2582     debug("PnP ID string: '%*.*s'", len, len, buf);
2583 
2584     /* revision */
2585     buf[1] -= offset;
2586     buf[2] -= offset;
2587     id->revision = ((buf[1] & 0x3f) << 6) | (buf[2] & 0x3f);
2588     debug("PnP rev %d.%02d", id->revision / 100, id->revision % 100);
2589 
2590     /* EISA vender and product ID */
2591     id->eisaid = &buf[3];
2592     id->neisaid = 7;
2593 
2594     /* option strings */
2595     i = 10;
2596     if (buf[i] == '\\') {
2597         /* device serial # */
2598         for (j = ++i; i < len; ++i) {
2599             if (buf[i] == '\\')
2600 		break;
2601         }
2602 	if (i >= len)
2603 	    i -= 3;
2604 	if (i - j == 8) {
2605             id->serial = &buf[j];
2606             id->nserial = 8;
2607 	}
2608     }
2609     if (buf[i] == '\\') {
2610         /* PnP class */
2611         for (j = ++i; i < len; ++i) {
2612             if (buf[i] == '\\')
2613 		break;
2614         }
2615 	if (i >= len)
2616 	    i -= 3;
2617 	if (i > j + 1) {
2618             id->class = &buf[j];
2619             id->nclass = i - j;
2620         }
2621     }
2622     if (buf[i] == '\\') {
2623 	/* compatible driver */
2624         for (j = ++i; i < len; ++i) {
2625             if (buf[i] == '\\')
2626 		break;
2627         }
2628 	/*
2629 	 * PnP COM spec prior to v0.96 allowed '*' in this field,
2630 	 * it's not allowed now; just igore it.
2631 	 */
2632 	if (buf[j] == '*')
2633 	    ++j;
2634 	if (i >= len)
2635 	    i -= 3;
2636 	if (i > j + 1) {
2637             id->compat = &buf[j];
2638             id->ncompat = i - j;
2639         }
2640     }
2641     if (buf[i] == '\\') {
2642 	/* product description */
2643         for (j = ++i; i < len; ++i) {
2644             if (buf[i] == ';')
2645 		break;
2646         }
2647 	if (i >= len)
2648 	    i -= 3;
2649 	if (i > j + 1) {
2650             id->description = &buf[j];
2651             id->ndescription = i - j;
2652         }
2653     }
2654 
2655     /* checksum exists if there are any optional fields */
2656     if ((id->nserial > 0) || (id->nclass > 0)
2657 	|| (id->ncompat > 0) || (id->ndescription > 0)) {
2658         debug("PnP checksum: 0x%X", sum);
2659         snprintf(s, sizeof(s), "%02X", sum & 0x0ff);
2660         if (strncmp(s, &buf[len - 3], 2) != 0) {
2661 #if 0
2662             /*
2663 	     * I found some mice do not comply with the PnP COM device
2664 	     * spec regarding checksum... XXX
2665 	     */
2666             logwarnx("PnP checksum error", 0);
2667 	    return FALSE;
2668 #endif
2669         }
2670     }
2671 
2672     return TRUE;
2673 }
2674 
2675 static symtab_t *
2676 pnpproto(pnpid_t *id)
2677 {
2678     symtab_t *t;
2679     int i, j;
2680 
2681     if (id->nclass > 0)
2682 	if ( strncmp(id->class, "MOUSE", id->nclass) != 0 &&
2683 	     strncmp(id->class, "TABLET", id->nclass) != 0)
2684 	    /* this is not a mouse! */
2685 	    return NULL;
2686 
2687     if (id->neisaid > 0) {
2688         t = gettoken(pnpprod, id->eisaid, id->neisaid);
2689 	if (t->val != MOUSE_PROTO_UNKNOWN)
2690             return t;
2691     }
2692 
2693     /*
2694      * The 'Compatible drivers' field may contain more than one
2695      * ID separated by ','.
2696      */
2697     if (id->ncompat <= 0)
2698 	return NULL;
2699     for (i = 0; i < id->ncompat; ++i) {
2700         for (j = i; id->compat[i] != ','; ++i)
2701             if (i >= id->ncompat)
2702 		break;
2703         if (i > j) {
2704             t = gettoken(pnpprod, id->compat + j, i - j);
2705 	    if (t->val != MOUSE_PROTO_UNKNOWN)
2706                 return t;
2707 	}
2708     }
2709 
2710     return NULL;
2711 }
2712 
2713 /* name/val mapping */
2714 
2715 static symtab_t *
2716 gettoken(symtab_t *tab, const char *s, int len)
2717 {
2718     int i;
2719 
2720     for (i = 0; tab[i].name != NULL; ++i) {
2721 	if (strncmp(tab[i].name, s, len) == 0)
2722 	    break;
2723     }
2724     return &tab[i];
2725 }
2726 
2727 static const char *
2728 gettokenname(symtab_t *tab, int val)
2729 {
2730     int i;
2731 
2732     for (i = 0; tab[i].name != NULL; ++i) {
2733 	if (tab[i].val == val)
2734 	    return tab[i].name;
2735     }
2736     return NULL;
2737 }
2738 
2739 
2740 /*
2741  * code to read from the Genius Kidspad tablet.
2742 
2743 The tablet responds to the COM PnP protocol 1.0 with EISA-ID KYE0005,
2744 and to pre-pnp probes (RTS toggle) with 'T' (tablet ?)
2745 9600, 8 bit, parity odd.
2746 
2747 The tablet puts out 5 bytes. b0 (mask 0xb8, value 0xb8) contains
2748 the proximity, tip and button info:
2749    (byte0 & 0x1)	true = tip pressed
2750    (byte0 & 0x2)	true = button pressed
2751    (byte0 & 0x40)	false = pen in proximity of tablet.
2752 
2753 The next 4 bytes are used for coordinates xl, xh, yl, yh (7 bits valid).
2754 
2755 Only absolute coordinates are returned, so we use the following approach:
2756 we store the last coordinates sent when the pen went out of the tablet,
2757 
2758 
2759  *
2760  */
2761 
2762 typedef enum {
2763     S_IDLE, S_PROXY, S_FIRST, S_DOWN, S_UP
2764 } k_status ;
2765 
2766 static int
2767 kidspad(u_char rxc, mousestatus_t *act)
2768 {
2769     static int buf[5];
2770     static int buflen = 0, b_prev = 0 , x_prev = -1, y_prev = -1 ;
2771     static k_status status = S_IDLE ;
2772     static struct timeval old, now ;
2773 
2774     int x, y ;
2775 
2776     if (buflen > 0 && (rxc & 0x80) ) {
2777 	fprintf(stderr, "invalid code %d 0x%x\n", buflen, rxc);
2778 	buflen = 0 ;
2779     }
2780     if (buflen == 0 && (rxc & 0xb8) != 0xb8 ) {
2781 	fprintf(stderr, "invalid code 0 0x%x\n", rxc);
2782 	return 0 ; /* invalid code, no action */
2783     }
2784     buf[buflen++] = rxc ;
2785     if (buflen < 5)
2786 	return 0 ;
2787 
2788     buflen = 0 ; /* for next time... */
2789 
2790     x = buf[1]+128*(buf[2] - 7) ;
2791     if (x < 0) x = 0 ;
2792     y = 28*128 - (buf[3] + 128* (buf[4] - 7)) ;
2793     if (y < 0) y = 0 ;
2794 
2795     x /= 8 ;
2796     y /= 8 ;
2797 
2798     act->flags = 0 ;
2799     act->obutton = act->button ;
2800     act->dx = act->dy = act->dz = 0 ;
2801     gettimeofday(&now, NULL);
2802     if ( buf[0] & 0x40 ) /* pen went out of reach */
2803 	status = S_IDLE ;
2804     else if (status == S_IDLE) { /* pen is newly near the tablet */
2805 	act->flags |= MOUSE_POSCHANGED ; /* force update */
2806 	status = S_PROXY ;
2807 	x_prev = x ;
2808 	y_prev = y ;
2809     }
2810     old = now ;
2811     act->dx = x - x_prev ;
2812     act->dy = y - y_prev ;
2813     if (act->dx || act->dy)
2814 	act->flags |= MOUSE_POSCHANGED ;
2815     x_prev = x ;
2816     y_prev = y ;
2817     if (b_prev != 0 && b_prev != buf[0]) { /* possibly record button change */
2818 	act->button = 0 ;
2819 	if ( buf[0] & 0x01 ) /* tip pressed */
2820 	    act->button |= MOUSE_BUTTON1DOWN ;
2821 	if ( buf[0] & 0x02 ) /* button pressed */
2822 	    act->button |= MOUSE_BUTTON2DOWN ;
2823 	act->flags |= MOUSE_BUTTONSCHANGED ;
2824     }
2825     b_prev = buf[0] ;
2826     return act->flags ;
2827 }
2828