xref: /freebsd/usr.sbin/moused/moused.c (revision 6990ffd8a95caaba6858ad44ff1b3157d1efba8f)
1 /**
2  ** Copyright (c) 1995 Michael Smith, All rights reserved.
3  **
4  ** Redistribution and use in source and binary forms, with or without
5  ** modification, are permitted provided that the following conditions
6  ** are met:
7  ** 1. Redistributions of source code must retain the above copyright
8  **    notice, this list of conditions and the following disclaimer as
9  **    the first lines of this file unmodified.
10  ** 2. Redistributions in binary form must reproduce the above copyright
11  **    notice, this list of conditions and the following disclaimer in the
12  **    documentation and/or other materials provided with the distribution.
13  ** 3. All advertising materials mentioning features or use of this software
14  **    must display the following acknowledgment:
15  **      This product includes software developed by Michael Smith.
16  ** 4. The name of the author may not be used to endorse or promote products
17  **    derived from this software without specific prior written permission.
18  **
19  **
20  ** THIS SOFTWARE IS PROVIDED BY Michael Smith ``AS IS'' AND ANY
21  ** EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  ** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23  ** PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Michael Smith BE LIABLE FOR
24  ** ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25  ** CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26  ** SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
27  ** BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
28  ** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
29  ** OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
30  ** EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  **
32  **/
33 
34 /**
35  ** MOUSED.C
36  **
37  ** Mouse daemon : listens to a serial port, the bus mouse interface, or
38  ** the PS/2 mouse port for mouse data stream, interprets data and passes
39  ** ioctls off to the console driver.
40  **
41  ** The mouse interface functions are derived closely from the mouse
42  ** handler in the XFree86 X server.  Many thanks to the XFree86 people
43  ** for their great work!
44  **
45  **/
46 
47 #ifndef lint
48 static const char rcsid[] =
49   "$FreeBSD$";
50 #endif /* not lint */
51 
52 #include <ctype.h>
53 #include <err.h>
54 #include <errno.h>
55 #include <fcntl.h>
56 #include <limits.h>
57 #include <stdio.h>
58 #include <stdlib.h>
59 #include <stdarg.h>
60 #include <string.h>
61 #include <ctype.h>
62 #include <signal.h>
63 #include <setjmp.h>
64 #include <termios.h>
65 #include <syslog.h>
66 #include <sys/mouse.h>
67 #include <sys/consio.h>
68 #include <sys/types.h>
69 #include <sys/time.h>
70 #include <sys/socket.h>
71 #include <sys/un.h>
72 #include <unistd.h>
73 
74 #define MAX_CLICKTHRESHOLD	2000	/* 2 seconds */
75 #define MAX_BUTTON2TIMEOUT	2000	/* 2 seconds */
76 #define DFLT_CLICKTHRESHOLD	 500	/* 0.5 second */
77 #define DFLT_BUTTON2TIMEOUT	 100	/* 0.1 second */
78 
79 /* Abort 3-button emulation delay after this many movement events. */
80 #define BUTTON2_MAXMOVE	3
81 
82 #define TRUE		1
83 #define FALSE		0
84 
85 #define MOUSE_XAXIS	(-1)
86 #define MOUSE_YAXIS	(-2)
87 
88 /* Logitech PS2++ protocol */
89 #define MOUSE_PS2PLUS_CHECKBITS(b)	\
90 			((((b[2] & 0x03) << 2) | 0x02) == (b[1] & 0x0f))
91 #define MOUSE_PS2PLUS_PACKET_TYPE(b)	\
92 			(((b[0] & 0x30) >> 2) | ((b[1] & 0x30) >> 4))
93 
94 #define	ChordMiddle	0x0001
95 #define Emulate3Button	0x0002
96 #define ClearDTR	0x0004
97 #define ClearRTS	0x0008
98 #define NoPnP		0x0010
99 
100 #define ID_NONE		0
101 #define ID_PORT		1
102 #define ID_IF		2
103 #define ID_TYPE 	4
104 #define ID_MODEL	8
105 #define ID_ALL		(ID_PORT | ID_IF | ID_TYPE | ID_MODEL)
106 
107 #define debug(fmt,args...) \
108 	if (debug&&nodaemon) warnx(fmt, ##args)
109 
110 #define logerr(e, fmt, args...) {				\
111 	if (background) {					\
112 	    syslog(LOG_DAEMON | LOG_ERR, fmt ": %m", ##args);	\
113 	    exit(e);						\
114 	} else							\
115 	    err(e, fmt, ##args);				\
116 }
117 
118 #define logerrx(e, fmt, args...) {				\
119 	if (background) {					\
120 	    syslog(LOG_DAEMON | LOG_ERR, fmt, ##args);		\
121 	    exit(e);						\
122 	} else							\
123 	    errx(e, fmt, ##args);				\
124 }
125 
126 #define logwarn(fmt, args...) {					\
127 	if (background)						\
128 	    syslog(LOG_DAEMON | LOG_WARNING, fmt ": %m", ##args); \
129 	else							\
130 	    warn(fmt, ##args);					\
131 }
132 
133 #define logwarnx(fmt, args...) {				\
134 	if (background)						\
135 	    syslog(LOG_DAEMON | LOG_WARNING, fmt, ##args);	\
136 	else							\
137 	    warnx(fmt, ##args);					\
138 }
139 
140 /* structures */
141 
142 /* symbol table entry */
143 typedef struct {
144     char *name;
145     int val;
146     int val2;
147 } symtab_t;
148 
149 /* serial PnP ID string */
150 typedef struct {
151     int revision;	/* PnP revision, 100 for 1.00 */
152     char *eisaid;	/* EISA ID including mfr ID and product ID */
153     char *serial;	/* serial No, optional */
154     char *class;	/* device class, optional */
155     char *compat;	/* list of compatible drivers, optional */
156     char *description;	/* product description, optional */
157     int neisaid;	/* length of the above fields... */
158     int nserial;
159     int nclass;
160     int ncompat;
161     int ndescription;
162 } pnpid_t;
163 
164 /* global variables */
165 
166 int	debug = 0;
167 int	nodaemon = FALSE;
168 int	background = FALSE;
169 int	identify = ID_NONE;
170 int	extioctl = FALSE;
171 char	*pidfile = "/var/run/moused.pid";
172 
173 /* local variables */
174 
175 /* interface (the table must be ordered by MOUSE_IF_XXX in mouse.h) */
176 static symtab_t rifs[] = {
177     { "serial",		MOUSE_IF_SERIAL },
178     { "bus",		MOUSE_IF_BUS },
179     { "inport",		MOUSE_IF_INPORT },
180     { "ps/2",		MOUSE_IF_PS2 },
181     { "sysmouse",	MOUSE_IF_SYSMOUSE },
182     { "usb",		MOUSE_IF_USB },
183     { NULL,		MOUSE_IF_UNKNOWN },
184 };
185 
186 /* types (the table must be ordered by MOUSE_PROTO_XXX in mouse.h) */
187 static char *rnames[] = {
188     "microsoft",
189     "mousesystems",
190     "logitech",
191     "mmseries",
192     "mouseman",
193     "busmouse",
194     "inportmouse",
195     "ps/2",
196     "mmhitab",
197     "glidepoint",
198     "intellimouse",
199     "thinkingmouse",
200     "sysmouse",
201     "x10mouseremote",
202     "kidspad",
203 #if notyet
204     "mariqua",
205 #endif
206     NULL
207 };
208 
209 /* models */
210 static symtab_t	rmodels[] = {
211     { "NetScroll",		MOUSE_MODEL_NETSCROLL },
212     { "NetMouse/NetScroll Optical", MOUSE_MODEL_NET },
213     { "GlidePoint",		MOUSE_MODEL_GLIDEPOINT },
214     { "ThinkingMouse",		MOUSE_MODEL_THINK },
215     { "IntelliMouse",		MOUSE_MODEL_INTELLI },
216     { "EasyScroll/SmartScroll",	MOUSE_MODEL_EASYSCROLL },
217     { "MouseMan+",		MOUSE_MODEL_MOUSEMANPLUS },
218     { "Kidspad",		MOUSE_MODEL_KIDSPAD },
219     { "VersaPad",		MOUSE_MODEL_VERSAPAD },
220     { "IntelliMouse Explorer",	MOUSE_MODEL_EXPLORER },
221     { "4D Mouse",		MOUSE_MODEL_4D },
222     { "4D+ Mouse",		MOUSE_MODEL_4DPLUS },
223     { "generic",		MOUSE_MODEL_GENERIC },
224     { NULL, 			MOUSE_MODEL_UNKNOWN },
225 };
226 
227 /* PnP EISA/product IDs */
228 static symtab_t pnpprod[] = {
229     /* Kensignton ThinkingMouse */
230     { "KML0001",	MOUSE_PROTO_THINK,	MOUSE_MODEL_THINK },
231     /* MS IntelliMouse */
232     { "MSH0001",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_INTELLI },
233     /* MS IntelliMouse TrackBall */
234     { "MSH0004",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_INTELLI },
235     /* Tremon Wheel Mouse MUSD */
236     { "HTK0001",        MOUSE_PROTO_INTELLI,    MOUSE_MODEL_INTELLI },
237     /* Genius PnP Mouse */
238     { "KYE0001",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
239     /* MouseSystems SmartScroll Mouse (OEM from Genius?) */
240     { "KYE0002",	MOUSE_PROTO_MS,		MOUSE_MODEL_EASYSCROLL },
241     /* Genius NetMouse */
242     { "KYE0003",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_NET },
243     /* Genius Kidspad, Easypad and other tablets */
244     { "KYE0005",	MOUSE_PROTO_KIDSPAD,	MOUSE_MODEL_KIDSPAD },
245     /* Genius EZScroll */
246     { "KYEEZ00",	MOUSE_PROTO_MS,		MOUSE_MODEL_EASYSCROLL },
247     /* Logitech Cordless MouseMan Wheel */
248     { "LGI8033",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_MOUSEMANPLUS },
249     /* Logitech MouseMan (new 4 button model) */
250     { "LGI800C",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_MOUSEMANPLUS },
251     /* Logitech MouseMan+ */
252     { "LGI8050",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_MOUSEMANPLUS },
253     /* Logitech FirstMouse+ */
254     { "LGI8051",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_MOUSEMANPLUS },
255     /* Logitech serial */
256     { "LGI8001",	MOUSE_PROTO_LOGIMOUSEMAN, MOUSE_MODEL_GENERIC },
257     /* A4 Tech 4D/4D+ Mouse */
258     { "A4W0005",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_4D },
259     /* 8D Scroll Mouse */
260     { "PEC9802",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_INTELLI },
261     /* Mitsumi Wireless Scroll Mouse */
262     { "MTM6401",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_INTELLI },
263 
264     /* MS bus */
265     { "PNP0F00",	MOUSE_PROTO_BUS,	MOUSE_MODEL_GENERIC },
266     /* MS serial */
267     { "PNP0F01",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
268     /* MS InPort */
269     { "PNP0F02",	MOUSE_PROTO_INPORT,	MOUSE_MODEL_GENERIC },
270     /* MS PS/2 */
271     { "PNP0F03",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
272     /*
273      * EzScroll returns PNP0F04 in the compatible device field; but it
274      * doesn't look compatible... XXX
275      */
276     /* MouseSystems */
277     { "PNP0F04",	MOUSE_PROTO_MSC,	MOUSE_MODEL_GENERIC },
278     /* MouseSystems */
279     { "PNP0F05",	MOUSE_PROTO_MSC,	MOUSE_MODEL_GENERIC },
280 #if notyet
281     /* Genius Mouse */
282     { "PNP0F06",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
283     /* Genius Mouse */
284     { "PNP0F07",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
285 #endif
286     /* Logitech serial */
287     { "PNP0F08",	MOUSE_PROTO_LOGIMOUSEMAN, MOUSE_MODEL_GENERIC },
288     /* MS BallPoint serial */
289     { "PNP0F09",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
290     /* MS PnP serial */
291     { "PNP0F0A",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
292     /* MS PnP BallPoint serial */
293     { "PNP0F0B",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
294     /* MS serial comatible */
295     { "PNP0F0C",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
296     /* MS InPort comatible */
297     { "PNP0F0D",	MOUSE_PROTO_INPORT,	MOUSE_MODEL_GENERIC },
298     /* MS PS/2 comatible */
299     { "PNP0F0E",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
300     /* MS BallPoint comatible */
301     { "PNP0F0F",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
302 #if notyet
303     /* TI QuickPort */
304     { "PNP0F10",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
305 #endif
306     /* MS bus comatible */
307     { "PNP0F11",	MOUSE_PROTO_BUS,	MOUSE_MODEL_GENERIC },
308     /* Logitech PS/2 */
309     { "PNP0F12",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
310     /* PS/2 */
311     { "PNP0F13",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
312 #if notyet
313     /* MS Kids Mouse */
314     { "PNP0F14",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
315 #endif
316     /* Logitech bus */
317     { "PNP0F15",	MOUSE_PROTO_BUS,	MOUSE_MODEL_GENERIC },
318 #if notyet
319     /* Logitech SWIFT */
320     { "PNP0F16",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
321 #endif
322     /* Logitech serial compat */
323     { "PNP0F17",	MOUSE_PROTO_LOGIMOUSEMAN, MOUSE_MODEL_GENERIC },
324     /* Logitech bus compatible */
325     { "PNP0F18",	MOUSE_PROTO_BUS,	MOUSE_MODEL_GENERIC },
326     /* Logitech PS/2 compatible */
327     { "PNP0F19",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
328 #if notyet
329     /* Logitech SWIFT compatible */
330     { "PNP0F1A",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
331     /* HP Omnibook */
332     { "PNP0F1B",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
333     /* Compaq LTE TrackBall PS/2 */
334     { "PNP0F1C",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
335     /* Compaq LTE TrackBall serial */
336     { "PNP0F1D",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
337     /* MS Kidts Trackball */
338     { "PNP0F1E",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
339 #endif
340     /* Interlink VersaPad */
341     { "LNK0001",	MOUSE_PROTO_VERSAPAD,	MOUSE_MODEL_VERSAPAD },
342 
343     { NULL,		MOUSE_PROTO_UNKNOWN,	MOUSE_MODEL_GENERIC },
344 };
345 
346 /* the table must be ordered by MOUSE_PROTO_XXX in mouse.h */
347 static unsigned short rodentcflags[] =
348 {
349     (CS7	           | CREAD | CLOCAL | HUPCL ),	/* MicroSoft */
350     (CS8 | CSTOPB	   | CREAD | CLOCAL | HUPCL ),	/* MouseSystems */
351     (CS8 | CSTOPB	   | CREAD | CLOCAL | HUPCL ),	/* Logitech */
352     (CS8 | PARENB | PARODD | CREAD | CLOCAL | HUPCL ),	/* MMSeries */
353     (CS7		   | CREAD | CLOCAL | HUPCL ),	/* MouseMan */
354     0,							/* Bus */
355     0,							/* InPort */
356     0,							/* PS/2 */
357     (CS8		   | CREAD | CLOCAL | HUPCL ),	/* MM HitTablet */
358     (CS7	           | CREAD | CLOCAL | HUPCL ),	/* GlidePoint */
359     (CS7                   | CREAD | CLOCAL | HUPCL ),	/* IntelliMouse */
360     (CS7                   | CREAD | CLOCAL | HUPCL ),	/* Thinking Mouse */
361     (CS8 | CSTOPB	   | CREAD | CLOCAL | HUPCL ),	/* sysmouse */
362     (CS7	           | CREAD | CLOCAL | HUPCL ),	/* X10 MouseRemote */
363     (CS8 | PARENB | PARODD | CREAD | CLOCAL | HUPCL ),	/* kidspad etc. */
364     (CS8		   | CREAD | CLOCAL | HUPCL ),	/* VersaPad */
365 #if notyet
366     (CS8 | CSTOPB	   | CREAD | CLOCAL | HUPCL ),	/* Mariqua */
367 #endif
368 };
369 
370 static struct rodentparam {
371     int flags;
372     char *portname;		/* /dev/XXX */
373     int rtype;			/* MOUSE_PROTO_XXX */
374     int level;			/* operation level: 0 or greater */
375     int baudrate;
376     int rate;			/* report rate */
377     int resolution;		/* MOUSE_RES_XXX or a positive number */
378     int zmap[4];		/* MOUSE_{X|Y}AXIS or a button number */
379     int wmode;			/* wheel mode button number */
380     int mfd;			/* mouse file descriptor */
381     int cfd;			/* /dev/consolectl file descriptor */
382     int mremsfd;		/* mouse remote server file descriptor */
383     int mremcfd;		/* mouse remote client file descriptor */
384     long clickthreshold;	/* double click speed in msec */
385     long button2timeout;	/* 3 button emulation timeout */
386     mousehw_t hw;		/* mouse device hardware information */
387     mousemode_t mode;		/* protocol information */
388     float accelx;		/* Acceleration in the X axis */
389     float accely;		/* Acceleration in the Y axis */
390 } rodent = {
391     flags : 0,
392     portname : NULL,
393     rtype : MOUSE_PROTO_UNKNOWN,
394     level : -1,
395     baudrate : 1200,
396     rate : 0,
397     resolution : MOUSE_RES_UNKNOWN,
398     zmap: { 0, 0, 0, 0 },
399     wmode: 0,
400     mfd : -1,
401     cfd : -1,
402     mremsfd : -1,
403     mremcfd : -1,
404     clickthreshold : DFLT_CLICKTHRESHOLD,
405     button2timeout : DFLT_BUTTON2TIMEOUT,
406     accelx : 1.0,
407     accely : 1.0,
408 };
409 
410 /* button status */
411 struct button_state {
412     int count;		/* 0: up, 1: single click, 2: double click,... */
413     struct timeval tv;	/* timestamp on the last button event */
414 };
415 static struct button_state	bstate[MOUSE_MAXBUTTON]; /* button state */
416 static struct button_state	*mstate[MOUSE_MAXBUTTON];/* mapped button st.*/
417 static struct button_state	zstate[4];		 /* Z/W axis state */
418 
419 /* state machine for 3 button emulation */
420 
421 #define S0	0	/* start */
422 #define S1	1	/* button 1 delayed down */
423 #define S2	2	/* button 3 delayed down */
424 #define S3	3	/* both buttons down -> button 2 down */
425 #define S4	4	/* button 1 delayed up */
426 #define S5	5	/* button 1 down */
427 #define S6	6	/* button 3 down */
428 #define S7	7	/* both buttons down */
429 #define S8	8	/* button 3 delayed up */
430 #define S9	9	/* button 1 or 3 up after S3 */
431 
432 #define A(b1, b3)	(((b1) ? 2 : 0) | ((b3) ? 1 : 0))
433 #define A_TIMEOUT	4
434 #define S_DELAYED(st)	(states[st].s[A_TIMEOUT] != (st))
435 
436 static struct {
437     int s[A_TIMEOUT + 1];
438     int buttons;
439     int mask;
440     int timeout;
441 } states[10] = {
442     /* S0 */
443     { { S0, S2, S1, S3, S0 }, 0, ~(MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN), FALSE },
444     /* S1 */
445     { { S4, S2, S1, S3, S5 }, 0, ~MOUSE_BUTTON1DOWN, FALSE },
446     /* S2 */
447     { { S8, S2, S1, S3, S6 }, 0, ~MOUSE_BUTTON3DOWN, FALSE },
448     /* S3 */
449     { { S0, S9, S9, S3, S3 }, MOUSE_BUTTON2DOWN, ~0, FALSE },
450     /* S4 */
451     { { S0, S2, S1, S3, S0 }, MOUSE_BUTTON1DOWN, ~0, TRUE },
452     /* S5 */
453     { { S0, S2, S5, S7, S5 }, MOUSE_BUTTON1DOWN, ~0, FALSE },
454     /* S6 */
455     { { S0, S6, S1, S7, S6 }, MOUSE_BUTTON3DOWN, ~0, FALSE },
456     /* S7 */
457     { { S0, S6, S5, S7, S7 }, MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN, ~0, FALSE },
458     /* S8 */
459     { { S0, S2, S1, S3, S0 }, MOUSE_BUTTON3DOWN, ~0, TRUE },
460     /* S9 */
461     { { S0, S9, S9, S3, S9 }, 0, ~(MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN), FALSE },
462 };
463 static int		mouse_button_state;
464 static struct timeval	mouse_button_state_tv;
465 static int		mouse_move_delayed;
466 
467 static jmp_buf env;
468 
469 /* function prototypes */
470 
471 static void	moused(void);
472 static void	hup(int sig);
473 static void	cleanup(int sig);
474 static void	usage(void);
475 
476 static int	r_identify(void);
477 static char	*r_if(int type);
478 static char	*r_name(int type);
479 static char	*r_model(int model);
480 static void	r_init(void);
481 static int	r_protocol(u_char b, mousestatus_t *act);
482 static int	r_statetrans(mousestatus_t *a1, mousestatus_t *a2, int trans);
483 static int	r_installmap(char *arg);
484 static void	r_map(mousestatus_t *act1, mousestatus_t *act2);
485 static void	r_timestamp(mousestatus_t *act);
486 static int	r_timeout(void);
487 static void	r_click(mousestatus_t *act);
488 static void	setmousespeed(int old, int new, unsigned cflag);
489 
490 static int	pnpwakeup1(void);
491 static int	pnpwakeup2(void);
492 static int	pnpgets(char *buf);
493 static int	pnpparse(pnpid_t *id, char *buf, int len);
494 static symtab_t	*pnpproto(pnpid_t *id);
495 
496 static symtab_t	*gettoken(symtab_t *tab, char *s, int len);
497 static char	*gettokenname(symtab_t *tab, int val);
498 
499 static void	mremote_serversetup();
500 static void	mremote_clientchg(int add);
501 
502 static int kidspad(u_char rxc, mousestatus_t *act);
503 
504 int
505 main(int argc, char *argv[])
506 {
507     int c;
508     int	i;
509     int	j;
510 
511     for (i = 0; i < MOUSE_MAXBUTTON; ++i)
512 	mstate[i] = &bstate[i];
513 
514     while((c = getopt(argc,argv,"3C:DE:F:I:PRS:a:cdfhi:l:m:p:r:st:w:z:")) != -1)
515 	switch(c) {
516 
517 	case '3':
518 	    rodent.flags |= Emulate3Button;
519 	    break;
520 
521 	case 'E':
522 	    rodent.button2timeout = atoi(optarg);
523 	    if ((rodent.button2timeout < 0) ||
524 	        (rodent.button2timeout > MAX_BUTTON2TIMEOUT)) {
525 	        warnx("invalid argument `%s'", optarg);
526 	        usage();
527 	    }
528 	    break;
529 
530 	case 'a':
531 	    i = sscanf(optarg, "%f,%f", &rodent.accelx, &rodent.accely);
532 	    if (i == 0) {
533 		warnx("invalid acceleration argument '%s'", optarg);
534 		usage();
535 	    }
536 
537 	    if (i == 1)
538 		rodent.accely = rodent.accelx;
539 
540 	    break;
541 
542 	case 'c':
543 	    rodent.flags |= ChordMiddle;
544 	    break;
545 
546 	case 'd':
547 	    ++debug;
548 	    break;
549 
550 	case 'f':
551 	    nodaemon = TRUE;
552 	    break;
553 
554 	case 'i':
555 	    if (strcmp(optarg, "all") == 0)
556 	        identify = ID_ALL;
557 	    else if (strcmp(optarg, "port") == 0)
558 	        identify = ID_PORT;
559 	    else if (strcmp(optarg, "if") == 0)
560 	        identify = ID_IF;
561 	    else if (strcmp(optarg, "type") == 0)
562 	        identify = ID_TYPE;
563 	    else if (strcmp(optarg, "model") == 0)
564 	        identify = ID_MODEL;
565 	    else {
566 	        warnx("invalid argument `%s'", optarg);
567 	        usage();
568 	    }
569 	    nodaemon = TRUE;
570 	    break;
571 
572 	case 'l':
573 	    rodent.level = atoi(optarg);
574 	    if ((rodent.level < 0) || (rodent.level > 4)) {
575 	        warnx("invalid argument `%s'", optarg);
576 	        usage();
577 	    }
578 	    break;
579 
580 	case 'm':
581 	    if (!r_installmap(optarg)) {
582 	        warnx("invalid argument `%s'", optarg);
583 	        usage();
584 	    }
585 	    break;
586 
587 	case 'p':
588 	    rodent.portname = optarg;
589 	    break;
590 
591 	case 'r':
592 	    if (strcmp(optarg, "high") == 0)
593 	        rodent.resolution = MOUSE_RES_HIGH;
594 	    else if (strcmp(optarg, "medium-high") == 0)
595 	        rodent.resolution = MOUSE_RES_HIGH;
596 	    else if (strcmp(optarg, "medium-low") == 0)
597 	        rodent.resolution = MOUSE_RES_MEDIUMLOW;
598 	    else if (strcmp(optarg, "low") == 0)
599 	        rodent.resolution = MOUSE_RES_LOW;
600 	    else if (strcmp(optarg, "default") == 0)
601 	        rodent.resolution = MOUSE_RES_DEFAULT;
602 	    else {
603 	        rodent.resolution = atoi(optarg);
604 	        if (rodent.resolution <= 0) {
605 	            warnx("invalid argument `%s'", optarg);
606 	            usage();
607 	        }
608 	    }
609 	    break;
610 
611 	case 's':
612 	    rodent.baudrate = 9600;
613 	    break;
614 
615 	case 'w':
616 	    i = atoi(optarg);
617 	    if ((i <= 0) || (i > MOUSE_MAXBUTTON)) {
618 		warnx("invalid argument `%s'", optarg);
619 		usage();
620 	    }
621 	    rodent.wmode = 1 << (i - 1);
622 	    break;
623 
624 	case 'z':
625 	    if (strcmp(optarg, "x") == 0)
626 		rodent.zmap[0] = MOUSE_XAXIS;
627 	    else if (strcmp(optarg, "y") == 0)
628 		rodent.zmap[0] = MOUSE_YAXIS;
629             else {
630 		i = atoi(optarg);
631 		/*
632 		 * Use button i for negative Z axis movement and
633 		 * button (i + 1) for positive Z axis movement.
634 		 */
635 		if ((i <= 0) || (i > MOUSE_MAXBUTTON - 1)) {
636 	            warnx("invalid argument `%s'", optarg);
637 	            usage();
638 		}
639 		rodent.zmap[0] = i;
640 		rodent.zmap[1] = i + 1;
641 		debug("optind: %d, optarg: '%s'", optind, optarg);
642 		for (j = 1; j < 4; ++j) {
643 		    if ((optind >= argc) || !isdigit(*argv[optind]))
644 			break;
645 		    i = atoi(argv[optind]);
646 		    if ((i <= 0) || (i > MOUSE_MAXBUTTON - 1)) {
647 			warnx("invalid argument `%s'", argv[optind]);
648 			usage();
649 		    }
650 		    rodent.zmap[j] = i;
651 		    ++optind;
652 		}
653 		if ((rodent.zmap[2] != 0) && (rodent.zmap[3] == 0))
654 		    rodent.zmap[3] = rodent.zmap[2] + 1;
655 	    }
656 	    break;
657 
658 	case 'C':
659 	    rodent.clickthreshold = atoi(optarg);
660 	    if ((rodent.clickthreshold < 0) ||
661 	        (rodent.clickthreshold > MAX_CLICKTHRESHOLD)) {
662 	        warnx("invalid argument `%s'", optarg);
663 	        usage();
664 	    }
665 	    break;
666 
667 	case 'D':
668 	    rodent.flags |= ClearDTR;
669 	    break;
670 
671 	case 'F':
672 	    rodent.rate = atoi(optarg);
673 	    if (rodent.rate <= 0) {
674 	        warnx("invalid argument `%s'", optarg);
675 	        usage();
676 	    }
677 	    break;
678 
679 	case 'I':
680 	    pidfile = optarg;
681 	    break;
682 
683 	case 'P':
684 	    rodent.flags |= NoPnP;
685 	    break;
686 
687 	case 'R':
688 	    rodent.flags |= ClearRTS;
689 	    break;
690 
691 	case 'S':
692 	    rodent.baudrate = atoi(optarg);
693 	    if (rodent.baudrate <= 0) {
694 	        warnx("invalid argument `%s'", optarg);
695 	        usage();
696 	    }
697 	    debug("rodent baudrate %d", rodent.baudrate);
698 	    break;
699 
700 	case 't':
701 	    if (strcmp(optarg, "auto") == 0) {
702 		rodent.rtype = MOUSE_PROTO_UNKNOWN;
703 		rodent.flags &= ~NoPnP;
704 		rodent.level = -1;
705 		break;
706 	    }
707 	    for (i = 0; rnames[i]; i++)
708 		if (strcmp(optarg, rnames[i]) == 0) {
709 		    rodent.rtype = i;
710 		    rodent.flags |= NoPnP;
711 		    rodent.level = (i == MOUSE_PROTO_SYSMOUSE) ? 1 : 0;
712 		    break;
713 		}
714 	    if (rnames[i])
715 		break;
716 	    warnx("no such mouse type `%s'", optarg);
717 	    usage();
718 
719 	case 'h':
720 	case '?':
721 	default:
722 	    usage();
723 	}
724 
725     /* fix Z axis mapping */
726     for (i = 0; i < 4; ++i) {
727 	if (rodent.zmap[i] > 0) {
728 	    for (j = 0; j < MOUSE_MAXBUTTON; ++j) {
729 		if (mstate[j] == &bstate[rodent.zmap[i] - 1])
730 		    mstate[j] = &zstate[i];
731 	    }
732 	    rodent.zmap[i] = 1 << (rodent.zmap[i] - 1);
733 	}
734     }
735 
736     /* the default port name */
737     switch(rodent.rtype) {
738 
739     case MOUSE_PROTO_INPORT:
740         /* INPORT and BUS are the same... */
741 	rodent.rtype = MOUSE_PROTO_BUS;
742 	/* FALL THROUGH */
743     case MOUSE_PROTO_BUS:
744 	if (!rodent.portname)
745 	    rodent.portname = "/dev/mse0";
746 	break;
747 
748     case MOUSE_PROTO_PS2:
749 	if (!rodent.portname)
750 	    rodent.portname = "/dev/psm0";
751 	break;
752 
753     default:
754 	if (rodent.portname)
755 	    break;
756 	warnx("no port name specified");
757 	usage();
758     }
759 
760     for (;;) {
761 	if (setjmp(env) == 0) {
762 	    signal(SIGHUP, hup);
763 	    signal(SIGINT , cleanup);
764 	    signal(SIGQUIT, cleanup);
765 	    signal(SIGTERM, cleanup);
766             if ((rodent.mfd = open(rodent.portname, O_RDWR | O_NONBLOCK, 0))
767 		== -1)
768 	        logerr(1, "unable to open %s", rodent.portname);
769             if (r_identify() == MOUSE_PROTO_UNKNOWN) {
770 	        logwarnx("cannot determine mouse type on %s", rodent.portname);
771 	        close(rodent.mfd);
772 	        rodent.mfd = -1;
773             }
774 
775 	    /* print some information */
776             if (identify != ID_NONE) {
777 		if (identify == ID_ALL)
778                     printf("%s %s %s %s\n",
779 		        rodent.portname, r_if(rodent.hw.iftype),
780 		        r_name(rodent.rtype), r_model(rodent.hw.model));
781 		else if (identify & ID_PORT)
782 		    printf("%s\n", rodent.portname);
783 		else if (identify & ID_IF)
784 		    printf("%s\n", r_if(rodent.hw.iftype));
785 		else if (identify & ID_TYPE)
786 		    printf("%s\n", r_name(rodent.rtype));
787 		else if (identify & ID_MODEL)
788 		    printf("%s\n", r_model(rodent.hw.model));
789 		exit(0);
790 	    } else {
791                 debug("port: %s  interface: %s  type: %s  model: %s",
792 		    rodent.portname, r_if(rodent.hw.iftype),
793 		    r_name(rodent.rtype), r_model(rodent.hw.model));
794 	    }
795 
796 	    if (rodent.mfd == -1) {
797 	        /*
798 	         * We cannot continue because of error.  Exit if the
799 		 * program has not become a daemon.  Otherwise, block
800 		 * until the the user corrects the problem and issues SIGHUP.
801 	         */
802 	        if (!background)
803 		    exit(1);
804 	        sigpause(0);
805 	    }
806 
807             r_init();			/* call init function */
808 	    moused();
809 	}
810 
811 	if (rodent.mfd != -1)
812 	    close(rodent.mfd);
813 	if (rodent.cfd != -1)
814 	    close(rodent.cfd);
815 	rodent.mfd = rodent.cfd = -1;
816     }
817     /* NOT REACHED */
818 
819     exit(0);
820 }
821 
822 static void
823 moused(void)
824 {
825     struct mouse_info mouse;
826     mousestatus_t action0;		/* original mouse action */
827     mousestatus_t action;		/* interrim buffer */
828     mousestatus_t action2;		/* mapped action */
829     struct timeval timeout;
830     fd_set fds;
831     u_char b;
832     FILE *fp;
833     int flags;
834     int c;
835     int i;
836 
837     if ((rodent.cfd = open("/dev/consolectl", O_RDWR, 0)) == -1)
838 	logerr(1, "cannot open /dev/consolectl", 0);
839 
840     if (!nodaemon && !background)
841 	if (daemon(0, 0)) {
842 	    logerr(1, "failed to become a daemon", 0);
843 	} else {
844 	    background = TRUE;
845 	    fp = fopen(pidfile, "w");
846 	    if (fp != NULL) {
847 		fprintf(fp, "%d\n", getpid());
848 		fclose(fp);
849 	    }
850 	}
851 
852     /* clear mouse data */
853     bzero(&action0, sizeof(action0));
854     bzero(&action, sizeof(action));
855     bzero(&action2, sizeof(action2));
856     bzero(&mouse, sizeof(mouse));
857     mouse_button_state = S0;
858     gettimeofday(&mouse_button_state_tv, NULL);
859     mouse_move_delayed = 0;
860     for (i = 0; i < MOUSE_MAXBUTTON; ++i) {
861 	bstate[i].count = 0;
862 	bstate[i].tv = mouse_button_state_tv;
863     }
864     for (i = 0; i < sizeof(zstate)/sizeof(zstate[0]); ++i) {
865 	zstate[i].count = 0;
866 	zstate[i].tv = mouse_button_state_tv;
867     }
868 
869     /* choose which ioctl command to use */
870     mouse.operation = MOUSE_MOTION_EVENT;
871     extioctl = (ioctl(rodent.cfd, CONS_MOUSECTL, &mouse) == 0);
872 
873     /* process mouse data */
874     timeout.tv_sec = 0;
875     timeout.tv_usec = 20000;		/* 20 msec */
876     for (;;) {
877 
878 	FD_ZERO(&fds);
879 	FD_SET(rodent.mfd, &fds);
880 	if (rodent.mremsfd >= 0)
881 	    FD_SET(rodent.mremsfd, &fds);
882 	if (rodent.mremcfd >= 0)
883 	    FD_SET(rodent.mremcfd, &fds);
884 
885 	c = select(FD_SETSIZE, &fds, NULL, NULL,
886 		   (rodent.flags & Emulate3Button) ? &timeout : NULL);
887 	if (c < 0) {                    /* error */
888 	    logwarn("failed to read from mouse", 0);
889 	    continue;
890 	} else if (c == 0) {            /* timeout */
891 	    /* assert(rodent.flags & Emulate3Button) */
892 	    action0.button = action0.obutton;
893 	    action0.dx = action0.dy = action0.dz = 0;
894 	    action0.flags = flags = 0;
895 	    if (r_timeout() && r_statetrans(&action0, &action, A_TIMEOUT)) {
896 		if (debug > 2)
897 		    debug("flags:%08x buttons:%08x obuttons:%08x",
898 			  action.flags, action.button, action.obutton);
899 	    } else {
900 		action0.obutton = action0.button;
901 		continue;
902 	    }
903 	} else {
904 	    /*  MouseRemote client connect/disconnect  */
905 	    if ((rodent.mremsfd >= 0) && FD_ISSET(rodent.mremsfd, &fds)) {
906 		mremote_clientchg(TRUE);
907 		continue;
908 	    }
909 	    if ((rodent.mremcfd >= 0) && FD_ISSET(rodent.mremcfd, &fds)) {
910 		mremote_clientchg(FALSE);
911 		continue;
912 	    }
913 	    /* mouse movement */
914 	    if (read(rodent.mfd, &b, 1) == -1) {
915 		if (errno == EWOULDBLOCK)
916 		    continue;
917 		else
918 		    return;
919 	    }
920 	    if ((flags = r_protocol(b, &action0)) == 0)
921 		continue;
922 	    r_timestamp(&action0);
923 	    r_statetrans(&action0, &action,
924 	    		 A(action0.button & MOUSE_BUTTON1DOWN,
925 	    		   action0.button & MOUSE_BUTTON3DOWN));
926 	    debug("flags:%08x buttons:%08x obuttons:%08x", action.flags,
927 		  action.button, action.obutton);
928 	}
929 	action0.obutton = action0.button;
930 	flags &= MOUSE_POSCHANGED;
931 	flags |= action.obutton ^ action.button;
932 	action.flags = flags;
933 
934 	if (flags) {			/* handler detected action */
935 	    r_map(&action, &action2);
936 	    debug("activity : buttons 0x%08x  dx %d  dy %d  dz %d",
937 		action2.button, action2.dx, action2.dy, action2.dz);
938 
939 	    if (extioctl) {
940 	        r_click(&action2);
941 	        if (action2.flags & MOUSE_POSCHANGED) {
942     		    mouse.operation = MOUSE_MOTION_EVENT;
943 	            mouse.u.data.buttons = action2.button;
944 	            mouse.u.data.x = action2.dx * rodent.accelx;
945 	            mouse.u.data.y = action2.dy * rodent.accely;
946 	            mouse.u.data.z = action2.dz;
947 		    if (debug < 2)
948 	                ioctl(rodent.cfd, CONS_MOUSECTL, &mouse);
949 	        }
950 	    } else {
951 	        mouse.operation = MOUSE_ACTION;
952 	        mouse.u.data.buttons = action2.button;
953 	        mouse.u.data.x = action2.dx * rodent.accelx;
954 	        mouse.u.data.y = action2.dy * rodent.accely;
955 	        mouse.u.data.z = action2.dz;
956 		if (debug < 2)
957 	            ioctl(rodent.cfd, CONS_MOUSECTL, &mouse);
958 	    }
959 
960             /*
961 	     * If the Z axis movement is mapped to a imaginary physical
962 	     * button, we need to cook up a corresponding button `up' event
963 	     * after sending a button `down' event.
964 	     */
965             if ((rodent.zmap[0] > 0) && (action.dz != 0)) {
966 		action.obutton = action.button;
967 		action.dx = action.dy = action.dz = 0;
968 	        r_map(&action, &action2);
969 	        debug("activity : buttons 0x%08x  dx %d  dy %d  dz %d",
970 		    action2.button, action2.dx, action2.dy, action2.dz);
971 
972 	        if (extioctl) {
973 	            r_click(&action2);
974 	        } else {
975 	            mouse.operation = MOUSE_ACTION;
976 	            mouse.u.data.buttons = action2.button;
977 		    mouse.u.data.x = mouse.u.data.y = mouse.u.data.z = 0;
978 		    if (debug < 2)
979 	                ioctl(rodent.cfd, CONS_MOUSECTL, &mouse);
980 	        }
981 	    }
982 	}
983     }
984     /* NOT REACHED */
985 }
986 
987 static void
988 hup(int sig)
989 {
990     longjmp(env, 1);
991 }
992 
993 static void
994 cleanup(int sig)
995 {
996     if (rodent.rtype == MOUSE_PROTO_X10MOUSEREM)
997 	unlink(_PATH_MOUSEREMOTE);
998     exit(0);
999 }
1000 
1001 /**
1002  ** usage
1003  **
1004  ** Complain, and free the CPU for more worthy tasks
1005  **/
1006 static void
1007 usage(void)
1008 {
1009     fprintf(stderr, "%s\n%s\n%s\n%s\n",
1010 	"usage: moused [-DRcdfs] [-I file] [-F rate] [-r resolution] [-S baudrate]",
1011 	"              [-a X [,Y]] [-C threshold] [-m N=M] [-w N] [-z N]",
1012 	"              [-t <mousetype>] [-3 [-E timeout]] -p <port>",
1013 	"       moused [-d] -i <port|if|type|model|all> -p <port>");
1014     exit(1);
1015 }
1016 
1017 /**
1018  ** Mouse interface code, courtesy of XFree86 3.1.2.
1019  **
1020  ** Note: Various bits have been trimmed, and in my shortsighted enthusiasm
1021  ** to clean, reformat and rationalise naming, it's quite possible that
1022  ** some things in here have been broken.
1023  **
1024  ** I hope not 8)
1025  **
1026  ** The following code is derived from a module marked :
1027  **/
1028 
1029 /* $XConsortium: xf86_Mouse.c,v 1.2 94/10/12 20:33:21 kaleb Exp $ */
1030 /* $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86_Mouse.c,v 3.2 1995/01/28
1031  17:03:40 dawes Exp $ */
1032 /*
1033  *
1034  * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.
1035  * Copyright 1993 by David Dawes <dawes@physics.su.oz.au>
1036  *
1037  * Permission to use, copy, modify, distribute, and sell this software and its
1038  * documentation for any purpose is hereby granted without fee, provided that
1039  * the above copyright notice appear in all copies and that both that
1040  * copyright notice and this permission notice appear in supporting
1041  * documentation, and that the names of Thomas Roell and David Dawes not be
1042  * used in advertising or publicity pertaining to distribution of the
1043  * software without specific, written prior permission.  Thomas Roell
1044  * and David Dawes makes no representations about the suitability of this
1045  * software for any purpose.  It is provided "as is" without express or
1046  * implied warranty.
1047  *
1048  * THOMAS ROELL AND DAVID DAWES DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
1049  * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
1050  * FITNESS, IN NO EVENT SHALL THOMAS ROELL OR DAVID DAWES BE LIABLE FOR ANY
1051  * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
1052  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
1053  * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
1054  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1055  *
1056  */
1057 
1058 /**
1059  ** GlidePoint support from XFree86 3.2.
1060  ** Derived from the module:
1061  **/
1062 
1063 /* $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86_Mouse.c,v 3.19 1996/10/16 14:40:51 dawes Exp $ */
1064 /* $XConsortium: xf86_Mouse.c /main/10 1996/01/30 15:16:12 kaleb $ */
1065 
1066 /* the following table must be ordered by MOUSE_PROTO_XXX in mouse.h */
1067 static unsigned char proto[][7] = {
1068     /*  hd_mask hd_id   dp_mask dp_id   bytes b4_mask b4_id */
1069     { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x23,  0x00 }, /* MicroSoft */
1070     {	0xf8,	0x80,	0x00,	0x00,	5,    0x00,  0xff }, /* MouseSystems */
1071     {	0xe0,	0x80,	0x80,	0x00,	3,    0x00,  0xff }, /* Logitech */
1072     {	0xe0,	0x80,	0x80,	0x00,	3,    0x00,  0xff }, /* MMSeries */
1073     { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x33,  0x00 }, /* MouseMan */
1074     {	0xf8,	0x80,	0x00,	0x00,	5,    0x00,  0xff }, /* Bus */
1075     {	0xf8,	0x80,	0x00,	0x00,	5,    0x00,  0xff }, /* InPort */
1076     {	0xc0,	0x00,	0x00,	0x00,	3,    0x00,  0xff }, /* PS/2 mouse */
1077     {	0xe0,	0x80,	0x80,	0x00,	3,    0x00,  0xff }, /* MM HitTablet */
1078     { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x33,  0x00 }, /* GlidePoint */
1079     { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x3f,  0x00 }, /* IntelliMouse */
1080     { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x33,  0x00 }, /* ThinkingMouse */
1081     {	0xf8,	0x80,	0x00,	0x00,	5,    0x00,  0xff }, /* sysmouse */
1082     { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x23,  0x00 }, /* X10 MouseRem */
1083     {	0x80,	0x80,	0x00,	0x00,	5,    0x00,  0xff }, /* KIDSPAD */
1084     {	0xc3,	0xc0,	0x00,	0x00,	6,    0x00,  0xff }, /* VersaPad */
1085 #if notyet
1086     {	0xf8,	0x80,	0x00,	0x00,	5,   ~0x2f,  0x10 }, /* Mariqua */
1087 #endif
1088 };
1089 static unsigned char cur_proto[7];
1090 
1091 static int
1092 r_identify(void)
1093 {
1094     char pnpbuf[256];	/* PnP identifier string may be up to 256 bytes long */
1095     pnpid_t pnpid;
1096     symtab_t *t;
1097     int level;
1098     int len;
1099 
1100     /* set the driver operation level, if applicable */
1101     if (rodent.level < 0)
1102 	rodent.level = 1;
1103     ioctl(rodent.mfd, MOUSE_SETLEVEL, &rodent.level);
1104     rodent.level = (ioctl(rodent.mfd, MOUSE_GETLEVEL, &level) == 0) ? level : 0;
1105 
1106     /*
1107      * Interrogate the driver and get some intelligence on the device...
1108      * The following ioctl functions are not always supported by device
1109      * drivers.  When the driver doesn't support them, we just trust the
1110      * user to supply valid information.
1111      */
1112     rodent.hw.iftype = MOUSE_IF_UNKNOWN;
1113     rodent.hw.model = MOUSE_MODEL_GENERIC;
1114     ioctl(rodent.mfd, MOUSE_GETHWINFO, &rodent.hw);
1115 
1116     if (rodent.rtype != MOUSE_PROTO_UNKNOWN)
1117         bcopy(proto[rodent.rtype], cur_proto, sizeof(cur_proto));
1118     rodent.mode.protocol = MOUSE_PROTO_UNKNOWN;
1119     rodent.mode.rate = -1;
1120     rodent.mode.resolution = MOUSE_RES_UNKNOWN;
1121     rodent.mode.accelfactor = 0;
1122     rodent.mode.level = 0;
1123     if (ioctl(rodent.mfd, MOUSE_GETMODE, &rodent.mode) == 0) {
1124         if ((rodent.mode.protocol == MOUSE_PROTO_UNKNOWN)
1125 	    || (rodent.mode.protocol >= sizeof(proto)/sizeof(proto[0]))) {
1126 	    logwarnx("unknown mouse protocol (%d)", rodent.mode.protocol);
1127 	    return MOUSE_PROTO_UNKNOWN;
1128         } else {
1129 	    /* INPORT and BUS are the same... */
1130 	    if (rodent.mode.protocol == MOUSE_PROTO_INPORT)
1131 	        rodent.mode.protocol = MOUSE_PROTO_BUS;
1132 	    if (rodent.mode.protocol != rodent.rtype) {
1133 		/* Hmm, the driver doesn't agree with the user... */
1134                 if (rodent.rtype != MOUSE_PROTO_UNKNOWN)
1135 	            logwarnx("mouse type mismatch (%s != %s), %s is assumed",
1136 		        r_name(rodent.mode.protocol), r_name(rodent.rtype),
1137 		        r_name(rodent.mode.protocol));
1138 	        rodent.rtype = rodent.mode.protocol;
1139                 bcopy(proto[rodent.rtype], cur_proto, sizeof(cur_proto));
1140 	    }
1141         }
1142         cur_proto[4] = rodent.mode.packetsize;
1143         cur_proto[0] = rodent.mode.syncmask[0];	/* header byte bit mask */
1144         cur_proto[1] = rodent.mode.syncmask[1];	/* header bit pattern */
1145     }
1146 
1147     /* maybe this is an PnP mouse... */
1148     if (rodent.mode.protocol == MOUSE_PROTO_UNKNOWN) {
1149 
1150         if (rodent.flags & NoPnP)
1151             return rodent.rtype;
1152 	if (((len = pnpgets(pnpbuf)) <= 0) || !pnpparse(&pnpid, pnpbuf, len))
1153             return rodent.rtype;
1154 
1155         debug("PnP serial mouse: '%*.*s' '%*.*s' '%*.*s'",
1156 	    pnpid.neisaid, pnpid.neisaid, pnpid.eisaid,
1157 	    pnpid.ncompat, pnpid.ncompat, pnpid.compat,
1158 	    pnpid.ndescription, pnpid.ndescription, pnpid.description);
1159 
1160 	/* we have a valid PnP serial device ID */
1161         rodent.hw.iftype = MOUSE_IF_SERIAL;
1162 	t = pnpproto(&pnpid);
1163 	if (t != NULL) {
1164             rodent.mode.protocol = t->val;
1165             rodent.hw.model = t->val2;
1166 	} else {
1167             rodent.mode.protocol = MOUSE_PROTO_UNKNOWN;
1168 	}
1169 	if (rodent.mode.protocol == MOUSE_PROTO_INPORT)
1170 	    rodent.mode.protocol = MOUSE_PROTO_BUS;
1171 
1172         /* make final adjustment */
1173 	if (rodent.mode.protocol != MOUSE_PROTO_UNKNOWN) {
1174 	    if (rodent.mode.protocol != rodent.rtype) {
1175 		/* Hmm, the device doesn't agree with the user... */
1176                 if (rodent.rtype != MOUSE_PROTO_UNKNOWN)
1177 	            logwarnx("mouse type mismatch (%s != %s), %s is assumed",
1178 		        r_name(rodent.mode.protocol), r_name(rodent.rtype),
1179 		        r_name(rodent.mode.protocol));
1180 	        rodent.rtype = rodent.mode.protocol;
1181                 bcopy(proto[rodent.rtype], cur_proto, sizeof(cur_proto));
1182 	    }
1183 	}
1184     }
1185 
1186     debug("proto params: %02x %02x %02x %02x %d %02x %02x",
1187 	cur_proto[0], cur_proto[1], cur_proto[2], cur_proto[3],
1188 	cur_proto[4], cur_proto[5], cur_proto[6]);
1189 
1190     return rodent.rtype;
1191 }
1192 
1193 static char *
1194 r_if(int iftype)
1195 {
1196     char *s;
1197 
1198     s = gettokenname(rifs, iftype);
1199     return (s == NULL) ? "unknown" : s;
1200 }
1201 
1202 static char *
1203 r_name(int type)
1204 {
1205     return ((type == MOUSE_PROTO_UNKNOWN)
1206 	|| (type > sizeof(rnames)/sizeof(rnames[0]) - 1))
1207 	? "unknown" : rnames[type];
1208 }
1209 
1210 static char *
1211 r_model(int model)
1212 {
1213     char *s;
1214 
1215     s = gettokenname(rmodels, model);
1216     return (s == NULL) ? "unknown" : s;
1217 }
1218 
1219 static void
1220 r_init(void)
1221 {
1222     unsigned char buf[16];	/* scrach buffer */
1223     fd_set fds;
1224     char *s;
1225     char c;
1226     int i;
1227 
1228     /**
1229      ** This comment is a little out of context here, but it contains
1230      ** some useful information...
1231      ********************************************************************
1232      **
1233      ** The following lines take care of the Logitech MouseMan protocols.
1234      **
1235      ** NOTE: There are different versions of both MouseMan and TrackMan!
1236      **       Hence I add another protocol P_LOGIMAN, which the user can
1237      **       specify as MouseMan in his XF86Config file. This entry was
1238      **       formerly handled as a special case of P_MS. However, people
1239      **       who don't have the middle button problem, can still specify
1240      **       Microsoft and use P_MS.
1241      **
1242      ** By default, these mice should use a 3 byte Microsoft protocol
1243      ** plus a 4th byte for the middle button. However, the mouse might
1244      ** have switched to a different protocol before we use it, so I send
1245      ** the proper sequence just in case.
1246      **
1247      ** NOTE: - all commands to (at least the European) MouseMan have to
1248      **         be sent at 1200 Baud.
1249      **       - each command starts with a '*'.
1250      **       - whenever the MouseMan receives a '*', it will switch back
1251      **	 to 1200 Baud. Hence I have to select the desired protocol
1252      **	 first, then select the baud rate.
1253      **
1254      ** The protocols supported by the (European) MouseMan are:
1255      **   -  5 byte packed binary protocol, as with the Mouse Systems
1256      **      mouse. Selected by sequence "*U".
1257      **   -  2 button 3 byte MicroSoft compatible protocol. Selected
1258      **      by sequence "*V".
1259      **   -  3 button 3+1 byte MicroSoft compatible protocol (default).
1260      **      Selected by sequence "*X".
1261      **
1262      ** The following baud rates are supported:
1263      **   -  1200 Baud (default). Selected by sequence "*n".
1264      **   -  9600 Baud. Selected by sequence "*q".
1265      **
1266      ** Selecting a sample rate is no longer supported with the MouseMan!
1267      ** Some additional lines in xf86Config.c take care of ill configured
1268      ** baud rates and sample rates. (The user will get an error.)
1269      */
1270 
1271     switch (rodent.rtype) {
1272 
1273     case MOUSE_PROTO_LOGI:
1274 	/*
1275 	 * The baud rate selection command must be sent at the current
1276 	 * baud rate; try all likely settings
1277 	 */
1278 	setmousespeed(9600, rodent.baudrate, rodentcflags[rodent.rtype]);
1279 	setmousespeed(4800, rodent.baudrate, rodentcflags[rodent.rtype]);
1280 	setmousespeed(2400, rodent.baudrate, rodentcflags[rodent.rtype]);
1281 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1282 	/* select MM series data format */
1283 	write(rodent.mfd, "S", 1);
1284 	setmousespeed(rodent.baudrate, rodent.baudrate,
1285 		      rodentcflags[MOUSE_PROTO_MM]);
1286 	/* select report rate/frequency */
1287 	if      (rodent.rate <= 0)   write(rodent.mfd, "O", 1);
1288 	else if (rodent.rate <= 15)  write(rodent.mfd, "J", 1);
1289 	else if (rodent.rate <= 27)  write(rodent.mfd, "K", 1);
1290 	else if (rodent.rate <= 42)  write(rodent.mfd, "L", 1);
1291 	else if (rodent.rate <= 60)  write(rodent.mfd, "R", 1);
1292 	else if (rodent.rate <= 85)  write(rodent.mfd, "M", 1);
1293 	else if (rodent.rate <= 125) write(rodent.mfd, "Q", 1);
1294 	else			     write(rodent.mfd, "N", 1);
1295 	break;
1296 
1297     case MOUSE_PROTO_LOGIMOUSEMAN:
1298 	/* The command must always be sent at 1200 baud */
1299 	setmousespeed(1200, 1200, rodentcflags[rodent.rtype]);
1300 	write(rodent.mfd, "*X", 2);
1301 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1302 	break;
1303 
1304     case MOUSE_PROTO_HITTAB:
1305 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1306 
1307 	/*
1308 	 * Initialize Hitachi PUMA Plus - Model 1212E to desired settings.
1309 	 * The tablet must be configured to be in MM mode, NO parity,
1310 	 * Binary Format.  xf86Info.sampleRate controls the sensativity
1311 	 * of the tablet.  We only use this tablet for it's 4-button puck
1312 	 * so we don't run in "Absolute Mode"
1313 	 */
1314 	write(rodent.mfd, "z8", 2);	/* Set Parity = "NONE" */
1315 	usleep(50000);
1316 	write(rodent.mfd, "zb", 2);	/* Set Format = "Binary" */
1317 	usleep(50000);
1318 	write(rodent.mfd, "@", 1);	/* Set Report Mode = "Stream" */
1319 	usleep(50000);
1320 	write(rodent.mfd, "R", 1);	/* Set Output Rate = "45 rps" */
1321 	usleep(50000);
1322 	write(rodent.mfd, "I\x20", 2);	/* Set Incrememtal Mode "20" */
1323 	usleep(50000);
1324 	write(rodent.mfd, "E", 1);	/* Set Data Type = "Relative */
1325 	usleep(50000);
1326 
1327 	/* Resolution is in 'lines per inch' on the Hitachi tablet */
1328 	if      (rodent.resolution == MOUSE_RES_LOW) 		c = 'g';
1329 	else if (rodent.resolution == MOUSE_RES_MEDIUMLOW)	c = 'e';
1330 	else if (rodent.resolution == MOUSE_RES_MEDIUMHIGH)	c = 'h';
1331 	else if (rodent.resolution == MOUSE_RES_HIGH)		c = 'd';
1332 	else if (rodent.resolution <=   40) 			c = 'g';
1333 	else if (rodent.resolution <=  100) 			c = 'd';
1334 	else if (rodent.resolution <=  200) 			c = 'e';
1335 	else if (rodent.resolution <=  500) 			c = 'h';
1336 	else if (rodent.resolution <= 1000) 			c = 'j';
1337 	else                                			c = 'd';
1338 	write(rodent.mfd, &c, 1);
1339 	usleep(50000);
1340 
1341 	write(rodent.mfd, "\021", 1);	/* Resume DATA output */
1342 	break;
1343 
1344     case MOUSE_PROTO_THINK:
1345 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1346 	/* the PnP ID string may be sent again, discard it */
1347 	usleep(200000);
1348 	i = FREAD;
1349 	ioctl(rodent.mfd, TIOCFLUSH, &i);
1350 	/* send the command to initialize the beast */
1351 	for (s = "E5E5"; *s; ++s) {
1352 	    write(rodent.mfd, s, 1);
1353 	    FD_ZERO(&fds);
1354 	    FD_SET(rodent.mfd, &fds);
1355 	    if (select(FD_SETSIZE, &fds, NULL, NULL, NULL) <= 0)
1356 		break;
1357 	    read(rodent.mfd, &c, 1);
1358 	    debug("%c", c);
1359 	    if (c != *s)
1360 	        break;
1361 	}
1362 	break;
1363 
1364     case MOUSE_PROTO_MSC:
1365 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1366 	if (rodent.flags & ClearDTR) {
1367 	   i = TIOCM_DTR;
1368 	   ioctl(rodent.mfd, TIOCMBIC, &i);
1369         }
1370         if (rodent.flags & ClearRTS) {
1371 	   i = TIOCM_RTS;
1372 	   ioctl(rodent.mfd, TIOCMBIC, &i);
1373         }
1374 	break;
1375 
1376     case MOUSE_PROTO_SYSMOUSE:
1377 	if (rodent.hw.iftype == MOUSE_IF_SYSMOUSE)
1378 	    setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1379 	/* fall through */
1380 
1381     case MOUSE_PROTO_BUS:
1382     case MOUSE_PROTO_INPORT:
1383     case MOUSE_PROTO_PS2:
1384 	if (rodent.rate >= 0)
1385 	    rodent.mode.rate = rodent.rate;
1386 	if (rodent.resolution != MOUSE_RES_UNKNOWN)
1387 	    rodent.mode.resolution = rodent.resolution;
1388 	ioctl(rodent.mfd, MOUSE_SETMODE, &rodent.mode);
1389 	break;
1390 
1391     case MOUSE_PROTO_X10MOUSEREM:
1392 	mremote_serversetup();
1393 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1394 	break;
1395 
1396 
1397     case MOUSE_PROTO_VERSAPAD:
1398 	tcsendbreak(rodent.mfd, 0);	/* send break for 400 msec */
1399 	i = FREAD;
1400 	ioctl(rodent.mfd, TIOCFLUSH, &i);
1401 	for (i = 0; i < 7; ++i) {
1402 	    FD_ZERO(&fds);
1403 	    FD_SET(rodent.mfd, &fds);
1404 	    if (select(FD_SETSIZE, &fds, NULL, NULL, NULL) <= 0)
1405 		break;
1406 	    read(rodent.mfd, &c, 1);
1407 	    buf[i] = c;
1408 	}
1409 	debug("%s\n", buf);
1410 	if ((buf[0] != 'V') || (buf[1] != 'P')|| (buf[7] != '\r'))
1411 	    break;
1412 	setmousespeed(9600, rodent.baudrate, rodentcflags[rodent.rtype]);
1413 	tcsendbreak(rodent.mfd, 0);	/* send break for 400 msec again */
1414 	for (i = 0; i < 7; ++i) {
1415 	    FD_ZERO(&fds);
1416 	    FD_SET(rodent.mfd, &fds);
1417 	    if (select(FD_SETSIZE, &fds, NULL, NULL, NULL) <= 0)
1418 		break;
1419 	    read(rodent.mfd, &c, 1);
1420 	    debug("%c", c);
1421 	    if (c != buf[i])
1422 		break;
1423 	}
1424 	i = FREAD;
1425 	ioctl(rodent.mfd, TIOCFLUSH, &i);
1426 	break;
1427 
1428     default:
1429 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1430 	break;
1431     }
1432 }
1433 
1434 static int
1435 r_protocol(u_char rBuf, mousestatus_t *act)
1436 {
1437     /* MOUSE_MSS_BUTTON?DOWN -> MOUSE_BUTTON?DOWN */
1438     static int butmapmss[4] = {	/* Microsoft, MouseMan, GlidePoint,
1439 				   IntelliMouse, Thinking Mouse */
1440 	0,
1441 	MOUSE_BUTTON3DOWN,
1442 	MOUSE_BUTTON1DOWN,
1443 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1444     };
1445     static int butmapmss2[4] = { /* Microsoft, MouseMan, GlidePoint,
1446 				    Thinking Mouse */
1447 	0,
1448 	MOUSE_BUTTON4DOWN,
1449 	MOUSE_BUTTON2DOWN,
1450 	MOUSE_BUTTON2DOWN | MOUSE_BUTTON4DOWN,
1451     };
1452     /* MOUSE_INTELLI_BUTTON?DOWN -> MOUSE_BUTTON?DOWN */
1453     static int butmapintelli[4] = { /* IntelliMouse, NetMouse, Mie Mouse,
1454 				       MouseMan+ */
1455 	0,
1456 	MOUSE_BUTTON2DOWN,
1457 	MOUSE_BUTTON4DOWN,
1458 	MOUSE_BUTTON2DOWN | MOUSE_BUTTON4DOWN,
1459     };
1460     /* MOUSE_MSC_BUTTON?UP -> MOUSE_BUTTON?DOWN */
1461     static int butmapmsc[8] = {	/* MouseSystems, MMSeries, Logitech,
1462 				   Bus, sysmouse */
1463 	0,
1464 	MOUSE_BUTTON3DOWN,
1465 	MOUSE_BUTTON2DOWN,
1466 	MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN,
1467 	MOUSE_BUTTON1DOWN,
1468 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1469 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN,
1470 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN
1471     };
1472     /* MOUSE_PS2_BUTTON?DOWN -> MOUSE_BUTTON?DOWN */
1473     static int butmapps2[8] = {	/* PS/2 */
1474 	0,
1475 	MOUSE_BUTTON1DOWN,
1476 	MOUSE_BUTTON3DOWN,
1477 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1478 	MOUSE_BUTTON2DOWN,
1479 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN,
1480 	MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN,
1481 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN
1482     };
1483     /* for Hitachi tablet */
1484     static int butmaphit[8] = {	/* MM HitTablet */
1485 	0,
1486 	MOUSE_BUTTON3DOWN,
1487 	MOUSE_BUTTON2DOWN,
1488 	MOUSE_BUTTON1DOWN,
1489 	MOUSE_BUTTON4DOWN,
1490 	MOUSE_BUTTON5DOWN,
1491 	MOUSE_BUTTON6DOWN,
1492 	MOUSE_BUTTON7DOWN,
1493     };
1494     /* for serial VersaPad */
1495     static int butmapversa[8] = { /* VersaPad */
1496 	0,
1497 	0,
1498 	MOUSE_BUTTON3DOWN,
1499 	MOUSE_BUTTON3DOWN,
1500 	MOUSE_BUTTON1DOWN,
1501 	MOUSE_BUTTON1DOWN,
1502 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1503 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1504     };
1505     /* for PS/2 VersaPad */
1506     static int butmapversaps2[8] = { /* VersaPad */
1507 	0,
1508 	MOUSE_BUTTON3DOWN,
1509 	0,
1510 	MOUSE_BUTTON3DOWN,
1511 	MOUSE_BUTTON1DOWN,
1512 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1513 	MOUSE_BUTTON1DOWN,
1514 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1515     };
1516     static int           pBufP = 0;
1517     static unsigned char pBuf[8];
1518     static int		 prev_x, prev_y;
1519     static int		 on = FALSE;
1520     int			 x, y;
1521 
1522     debug("received char 0x%x",(int)rBuf);
1523     if (rodent.rtype == MOUSE_PROTO_KIDSPAD)
1524 	return kidspad(rBuf, act) ;
1525 
1526     /*
1527      * Hack for resyncing: We check here for a package that is:
1528      *  a) illegal (detected by wrong data-package header)
1529      *  b) invalid (0x80 == -128 and that might be wrong for MouseSystems)
1530      *  c) bad header-package
1531      *
1532      * NOTE: b) is a voilation of the MouseSystems-Protocol, since values of
1533      *       -128 are allowed, but since they are very seldom we can easily
1534      *       use them as package-header with no button pressed.
1535      * NOTE/2: On a PS/2 mouse any byte is valid as a data byte. Furthermore,
1536      *         0x80 is not valid as a header byte. For a PS/2 mouse we skip
1537      *         checking data bytes.
1538      *         For resyncing a PS/2 mouse we require the two most significant
1539      *         bits in the header byte to be 0. These are the overflow bits,
1540      *         and in case of an overflow we actually lose sync. Overflows
1541      *         are very rare, however, and we quickly gain sync again after
1542      *         an overflow condition. This is the best we can do. (Actually,
1543      *         we could use bit 0x08 in the header byte for resyncing, since
1544      *         that bit is supposed to be always on, but nobody told
1545      *         Microsoft...)
1546      */
1547 
1548     if (pBufP != 0 && rodent.rtype != MOUSE_PROTO_PS2 &&
1549 	((rBuf & cur_proto[2]) != cur_proto[3] || rBuf == 0x80))
1550     {
1551 	pBufP = 0;		/* skip package */
1552     }
1553 
1554     if (pBufP == 0 && (rBuf & cur_proto[0]) != cur_proto[1])
1555 	return 0;
1556 
1557     /* is there an extra data byte? */
1558     if (pBufP >= cur_proto[4] && (rBuf & cur_proto[0]) != cur_proto[1])
1559     {
1560 	/*
1561 	 * Hack for Logitech MouseMan Mouse - Middle button
1562 	 *
1563 	 * Unfortunately this mouse has variable length packets: the standard
1564 	 * Microsoft 3 byte packet plus an optional 4th byte whenever the
1565 	 * middle button status changes.
1566 	 *
1567 	 * We have already processed the standard packet with the movement
1568 	 * and button info.  Now post an event message with the old status
1569 	 * of the left and right buttons and the updated middle button.
1570 	 */
1571 
1572 	/*
1573 	 * Even worse, different MouseMen and TrackMen differ in the 4th
1574 	 * byte: some will send 0x00/0x20, others 0x01/0x21, or even
1575 	 * 0x02/0x22, so I have to strip off the lower bits.
1576          *
1577          * [JCH-96/01/21]
1578          * HACK for ALPS "fourth button". (It's bit 0x10 of the "fourth byte"
1579          * and it is activated by tapping the glidepad with the finger! 8^)
1580          * We map it to bit bit3, and the reverse map in xf86Events just has
1581          * to be extended so that it is identified as Button 4. The lower
1582          * half of the reverse-map may remain unchanged.
1583 	 */
1584 
1585         /*
1586 	 * [KY-97/08/03]
1587 	 * Receive the fourth byte only when preceding three bytes have
1588 	 * been detected (pBufP >= cur_proto[4]).  In the previous
1589 	 * versions, the test was pBufP == 0; thus, we may have mistakingly
1590 	 * received a byte even if we didn't see anything preceding
1591 	 * the byte.
1592 	 */
1593 
1594 	if ((rBuf & cur_proto[5]) != cur_proto[6]) {
1595             pBufP = 0;
1596 	    return 0;
1597 	}
1598 
1599 	switch (rodent.rtype) {
1600 #if notyet
1601 	case MOUSE_PROTO_MARIQUA:
1602 	    /*
1603 	     * This mouse has 16! buttons in addition to the standard
1604 	     * three of them.  They return 0x10 though 0x1f in the
1605 	     * so-called `ten key' mode and 0x30 though 0x3f in the
1606 	     * `function key' mode.  As there are only 31 bits for
1607 	     * button state (including the standard three), we ignore
1608 	     * the bit 0x20 and don't distinguish the two modes.
1609 	     */
1610 	    act->dx = act->dy = act->dz = 0;
1611 	    act->obutton = act->button;
1612 	    rBuf &= 0x1f;
1613 	    act->button = (1 << (rBuf - 13))
1614                 | (act->obutton & (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN));
1615 	    /*
1616 	     * FIXME: this is a button "down" event. There needs to be
1617 	     * a corresponding button "up" event... XXX
1618 	     */
1619 	    break;
1620 #endif /* notyet */
1621 
1622 	/*
1623 	 * IntelliMouse, NetMouse (including NetMouse Pro) and Mie Mouse
1624 	 * always send the fourth byte, whereas the fourth byte is
1625 	 * optional for GlidePoint and ThinkingMouse. The fourth byte
1626 	 * is also optional for MouseMan+ and FirstMouse+ in their
1627 	 * native mode. It is always sent if they are in the IntelliMouse
1628 	 * compatible mode.
1629 	 */
1630 	case MOUSE_PROTO_INTELLI:	/* IntelliMouse, NetMouse, Mie Mouse,
1631 					   MouseMan+ */
1632 	    act->dx = act->dy = 0;
1633 	    act->dz = (rBuf & 0x08) ? (rBuf & 0x0f) - 16 : (rBuf & 0x0f);
1634 	    if ((act->dz >= 7) || (act->dz <= -7))
1635 		act->dz = 0;
1636 	    act->obutton = act->button;
1637 	    act->button = butmapintelli[(rBuf & MOUSE_MSS_BUTTONS) >> 4]
1638 		| (act->obutton & (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN));
1639 	    break;
1640 
1641 	default:
1642 	    act->dx = act->dy = act->dz = 0;
1643 	    act->obutton = act->button;
1644 	    act->button = butmapmss2[(rBuf & MOUSE_MSS_BUTTONS) >> 4]
1645 		| (act->obutton & (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN));
1646 	    break;
1647 	}
1648 
1649 	act->flags = ((act->dx || act->dy || act->dz) ? MOUSE_POSCHANGED : 0)
1650 	    | (act->obutton ^ act->button);
1651         pBufP = 0;
1652 	return act->flags;
1653     }
1654 
1655     if (pBufP >= cur_proto[4])
1656 	pBufP = 0;
1657     pBuf[pBufP++] = rBuf;
1658     if (pBufP != cur_proto[4])
1659 	return 0;
1660 
1661     /*
1662      * assembly full package
1663      */
1664 
1665     debug("assembled full packet (len %d) %x,%x,%x,%x,%x,%x,%x,%x",
1666 	cur_proto[4],
1667 	pBuf[0], pBuf[1], pBuf[2], pBuf[3],
1668 	pBuf[4], pBuf[5], pBuf[6], pBuf[7]);
1669 
1670     act->dz = 0;
1671     act->obutton = act->button;
1672     switch (rodent.rtype)
1673     {
1674     case MOUSE_PROTO_MS:		/* Microsoft */
1675     case MOUSE_PROTO_LOGIMOUSEMAN:	/* MouseMan/TrackMan */
1676     case MOUSE_PROTO_X10MOUSEREM:	/* X10 MouseRemote */
1677 	act->button = act->obutton & MOUSE_BUTTON4DOWN;
1678 	if (rodent.flags & ChordMiddle)
1679 	    act->button |= ((pBuf[0] & MOUSE_MSS_BUTTONS) == MOUSE_MSS_BUTTONS)
1680 		? MOUSE_BUTTON2DOWN
1681 		: butmapmss[(pBuf[0] & MOUSE_MSS_BUTTONS) >> 4];
1682 	else
1683 	    act->button |= (act->obutton & MOUSE_BUTTON2DOWN)
1684 		| butmapmss[(pBuf[0] & MOUSE_MSS_BUTTONS) >> 4];
1685 
1686 	/* Send X10 btn events to remote client (ensure -128-+127 range) */
1687 	if ((rodent.rtype == MOUSE_PROTO_X10MOUSEREM) &&
1688 	    ((pBuf[0] & 0xFC) == 0x44) && (pBuf[2] == 0x3F)) {
1689 	    if (rodent.mremcfd >= 0) {
1690 		unsigned char key = (signed char)(((pBuf[0] & 0x03) << 6) |
1691 						  (pBuf[1] & 0x3F));
1692 		write( rodent.mremcfd, &key, 1 );
1693 	    }
1694 	    return 0;
1695 	}
1696 
1697 	act->dx = (char)(((pBuf[0] & 0x03) << 6) | (pBuf[1] & 0x3F));
1698 	act->dy = (char)(((pBuf[0] & 0x0C) << 4) | (pBuf[2] & 0x3F));
1699 	break;
1700 
1701     case MOUSE_PROTO_GLIDEPOINT:	/* GlidePoint */
1702     case MOUSE_PROTO_THINK:		/* ThinkingMouse */
1703     case MOUSE_PROTO_INTELLI:		/* IntelliMouse, NetMouse, Mie Mouse,
1704 					   MouseMan+ */
1705 	act->button = (act->obutton & (MOUSE_BUTTON2DOWN | MOUSE_BUTTON4DOWN))
1706             | butmapmss[(pBuf[0] & MOUSE_MSS_BUTTONS) >> 4];
1707 	act->dx = (char)(((pBuf[0] & 0x03) << 6) | (pBuf[1] & 0x3F));
1708 	act->dy = (char)(((pBuf[0] & 0x0C) << 4) | (pBuf[2] & 0x3F));
1709 	break;
1710 
1711     case MOUSE_PROTO_MSC:		/* MouseSystems Corp */
1712 #if notyet
1713     case MOUSE_PROTO_MARIQUA:		/* Mariqua */
1714 #endif
1715 	act->button = butmapmsc[(~pBuf[0]) & MOUSE_MSC_BUTTONS];
1716 	act->dx =    (char)(pBuf[1]) + (char)(pBuf[3]);
1717 	act->dy = - ((char)(pBuf[2]) + (char)(pBuf[4]));
1718 	break;
1719 
1720     case MOUSE_PROTO_HITTAB:		/* MM HitTablet */
1721 	act->button = butmaphit[pBuf[0] & 0x07];
1722 	act->dx = (pBuf[0] & MOUSE_MM_XPOSITIVE) ?   pBuf[1] : - pBuf[1];
1723 	act->dy = (pBuf[0] & MOUSE_MM_YPOSITIVE) ? - pBuf[2] :   pBuf[2];
1724 	break;
1725 
1726     case MOUSE_PROTO_MM:		/* MM Series */
1727     case MOUSE_PROTO_LOGI:		/* Logitech Mice */
1728 	act->button = butmapmsc[pBuf[0] & MOUSE_MSC_BUTTONS];
1729 	act->dx = (pBuf[0] & MOUSE_MM_XPOSITIVE) ?   pBuf[1] : - pBuf[1];
1730 	act->dy = (pBuf[0] & MOUSE_MM_YPOSITIVE) ? - pBuf[2] :   pBuf[2];
1731 	break;
1732 
1733     case MOUSE_PROTO_VERSAPAD:		/* VersaPad */
1734 	act->button = butmapversa[(pBuf[0] & MOUSE_VERSA_BUTTONS) >> 3];
1735 	act->button |= (pBuf[0] & MOUSE_VERSA_TAP) ? MOUSE_BUTTON4DOWN : 0;
1736 	act->dx = act->dy = 0;
1737 	if (!(pBuf[0] & MOUSE_VERSA_IN_USE)) {
1738 	    on = FALSE;
1739 	    break;
1740 	}
1741 	x = (pBuf[2] << 6) | pBuf[1];
1742 	if (x & 0x800)
1743 	    x -= 0x1000;
1744 	y = (pBuf[4] << 6) | pBuf[3];
1745 	if (y & 0x800)
1746 	    y -= 0x1000;
1747 	if (on) {
1748 	    act->dx = prev_x - x;
1749 	    act->dy = prev_y - y;
1750 	} else {
1751 	    on = TRUE;
1752 	}
1753 	prev_x = x;
1754 	prev_y = y;
1755 	break;
1756 
1757     case MOUSE_PROTO_BUS:		/* Bus */
1758     case MOUSE_PROTO_INPORT:		/* InPort */
1759 	act->button = butmapmsc[(~pBuf[0]) & MOUSE_MSC_BUTTONS];
1760 	act->dx =   (char)pBuf[1];
1761 	act->dy = - (char)pBuf[2];
1762 	break;
1763 
1764     case MOUSE_PROTO_PS2:		/* PS/2 */
1765 	act->button = butmapps2[pBuf[0] & MOUSE_PS2_BUTTONS];
1766 	act->dx = (pBuf[0] & MOUSE_PS2_XNEG) ?    pBuf[1] - 256  :  pBuf[1];
1767 	act->dy = (pBuf[0] & MOUSE_PS2_YNEG) ?  -(pBuf[2] - 256) : -pBuf[2];
1768 	/*
1769 	 * Moused usually operates the psm driver at the operation level 1
1770 	 * which sends mouse data in MOUSE_PROTO_SYSMOUSE protocol.
1771 	 * The following code takes effect only when the user explicitly
1772 	 * requets the level 2 at which wheel movement and additional button
1773 	 * actions are encoded in model-dependent formats. At the level 0
1774 	 * the following code is no-op because the psm driver says the model
1775 	 * is MOUSE_MODEL_GENERIC.
1776 	 */
1777 	switch (rodent.hw.model) {
1778 	case MOUSE_MODEL_EXPLORER:
1779 	    /* wheel and additional button data is in the fourth byte */
1780 	    act->dz = (pBuf[3] & MOUSE_EXPLORER_ZNEG)
1781 		? (pBuf[3] & 0x0f) - 16 : (pBuf[3] & 0x0f);
1782 	    act->button |= (pBuf[3] & MOUSE_EXPLORER_BUTTON4DOWN)
1783 		? MOUSE_BUTTON4DOWN : 0;
1784 	    act->button |= (pBuf[3] & MOUSE_EXPLORER_BUTTON5DOWN)
1785 		? MOUSE_BUTTON5DOWN : 0;
1786 	    break;
1787 	case MOUSE_MODEL_INTELLI:
1788 	case MOUSE_MODEL_NET:
1789 	    /* wheel data is in the fourth byte */
1790 	    act->dz = (char)pBuf[3];
1791 	    if ((act->dz >= 7) || (act->dz <= -7))
1792 		act->dz = 0;
1793 	    /* some compatible mice may have additional buttons */
1794 	    act->button |= (pBuf[0] & MOUSE_PS2INTELLI_BUTTON4DOWN)
1795 		? MOUSE_BUTTON4DOWN : 0;
1796 	    act->button |= (pBuf[0] & MOUSE_PS2INTELLI_BUTTON5DOWN)
1797 		? MOUSE_BUTTON5DOWN : 0;
1798 	    break;
1799 	case MOUSE_MODEL_MOUSEMANPLUS:
1800 	    if (((pBuf[0] & MOUSE_PS2PLUS_SYNCMASK) == MOUSE_PS2PLUS_SYNC)
1801 		    && (abs(act->dx) > 191)
1802 		    && MOUSE_PS2PLUS_CHECKBITS(pBuf)) {
1803 		/* the extended data packet encodes button and wheel events */
1804 		switch (MOUSE_PS2PLUS_PACKET_TYPE(pBuf)) {
1805 		case 1:
1806 		    /* wheel data packet */
1807 		    act->dx = act->dy = 0;
1808 		    if (pBuf[2] & 0x80) {
1809 			/* horizontal roller count - ignore it XXX*/
1810 		    } else {
1811 			/* vertical roller count */
1812 			act->dz = (pBuf[2] & MOUSE_PS2PLUS_ZNEG)
1813 			    ? (pBuf[2] & 0x0f) - 16 : (pBuf[2] & 0x0f);
1814 		    }
1815 		    act->button |= (pBuf[2] & MOUSE_PS2PLUS_BUTTON4DOWN)
1816 			? MOUSE_BUTTON4DOWN : 0;
1817 		    act->button |= (pBuf[2] & MOUSE_PS2PLUS_BUTTON5DOWN)
1818 			? MOUSE_BUTTON5DOWN : 0;
1819 		    break;
1820 		case 2:
1821 		    /* this packet type is reserved by Logitech */
1822 		    /*
1823 		     * IBM ScrollPoint Mouse uses this packet type to
1824 		     * encode both vertical and horizontal scroll movement.
1825 		     */
1826 		    act->dx = act->dy = 0;
1827 		    /* horizontal roller count */
1828 		    if (pBuf[2] & 0x0f)
1829 			act->dz = (pBuf[2] & MOUSE_SPOINT_WNEG) ? -2 : 2;
1830 		    /* vertical roller count */
1831 		    if (pBuf[2] & 0xf0)
1832 			act->dz = (pBuf[2] & MOUSE_SPOINT_ZNEG) ? -1 : 1;
1833 #if 0
1834 		    /* vertical roller count */
1835 		    act->dz = (pBuf[2] & MOUSE_SPOINT_ZNEG)
1836 			? ((pBuf[2] >> 4) & 0x0f) - 16
1837 			: ((pBuf[2] >> 4) & 0x0f);
1838 		    /* horizontal roller count */
1839 		    act->dw = (pBuf[2] & MOUSE_SPOINT_WNEG)
1840 			? (pBuf[2] & 0x0f) - 16 : (pBuf[2] & 0x0f);
1841 #endif
1842 		    break;
1843 		case 0:
1844 		    /* device type packet - shouldn't happen */
1845 		    /* FALL THROUGH */
1846 		default:
1847 		    act->dx = act->dy = 0;
1848 		    act->button = act->obutton;
1849             	    debug("unknown PS2++ packet type %d: 0x%02x 0x%02x 0x%02x\n",
1850 			  MOUSE_PS2PLUS_PACKET_TYPE(pBuf),
1851 			  pBuf[0], pBuf[1], pBuf[2]);
1852 		    break;
1853 		}
1854 	    } else {
1855 		/* preserve button states */
1856 		act->button |= act->obutton & MOUSE_EXTBUTTONS;
1857 	    }
1858 	    break;
1859 	case MOUSE_MODEL_GLIDEPOINT:
1860 	    /* `tapping' action */
1861 	    act->button |= ((pBuf[0] & MOUSE_PS2_TAP)) ? 0 : MOUSE_BUTTON4DOWN;
1862 	    break;
1863 	case MOUSE_MODEL_NETSCROLL:
1864 	    /* three addtional bytes encode buttons and wheel events */
1865 	    act->button |= (pBuf[3] & MOUSE_PS2_BUTTON3DOWN)
1866 		? MOUSE_BUTTON4DOWN : 0;
1867 	    act->button |= (pBuf[3] & MOUSE_PS2_BUTTON1DOWN)
1868 		? MOUSE_BUTTON5DOWN : 0;
1869 	    act->dz = (pBuf[3] & MOUSE_PS2_XNEG) ? pBuf[4] - 256 : pBuf[4];
1870 	    break;
1871 	case MOUSE_MODEL_THINK:
1872 	    /* the fourth button state in the first byte */
1873 	    act->button |= (pBuf[0] & MOUSE_PS2_TAP) ? MOUSE_BUTTON4DOWN : 0;
1874 	    break;
1875 	case MOUSE_MODEL_VERSAPAD:
1876 	    act->button = butmapversaps2[pBuf[0] & MOUSE_PS2VERSA_BUTTONS];
1877 	    act->button |=
1878 		(pBuf[0] & MOUSE_PS2VERSA_TAP) ? MOUSE_BUTTON4DOWN : 0;
1879 	    act->dx = act->dy = 0;
1880 	    if (!(pBuf[0] & MOUSE_PS2VERSA_IN_USE)) {
1881 		on = FALSE;
1882 		break;
1883 	    }
1884 	    x = ((pBuf[4] << 8) & 0xf00) | pBuf[1];
1885 	    if (x & 0x800)
1886 		x -= 0x1000;
1887 	    y = ((pBuf[4] << 4) & 0xf00) | pBuf[2];
1888 	    if (y & 0x800)
1889 		y -= 0x1000;
1890 	    if (on) {
1891 		act->dx = prev_x - x;
1892 		act->dy = prev_y - y;
1893 	    } else {
1894 		on = TRUE;
1895 	    }
1896 	    prev_x = x;
1897 	    prev_y = y;
1898 	    break;
1899 	case MOUSE_MODEL_4D:
1900 	    act->dx = (pBuf[1] & 0x80) ?    pBuf[1] - 256  :  pBuf[1];
1901 	    act->dy = (pBuf[2] & 0x80) ?  -(pBuf[2] - 256) : -pBuf[2];
1902 	    switch (pBuf[0] & MOUSE_4D_WHEELBITS) {
1903 	    case 0x10:
1904 		act->dz = 1;
1905 		break;
1906 	    case 0x30:
1907 		act->dz = -1;
1908 		break;
1909 	    case 0x40:	/* 2nd wheel rolling right XXX */
1910 		act->dz = 2;
1911 		break;
1912 	    case 0xc0:	/* 2nd wheel rolling left XXX */
1913 		act->dz = -2;
1914 		break;
1915 	    }
1916 	    break;
1917 	case MOUSE_MODEL_4DPLUS:
1918 	    if ((act->dx < 16 - 256) && (act->dy > 256 - 16)) {
1919 		act->dx = act->dy = 0;
1920 		if (pBuf[2] & MOUSE_4DPLUS_BUTTON4DOWN)
1921 		    act->button |= MOUSE_BUTTON4DOWN;
1922 		act->dz = (pBuf[2] & MOUSE_4DPLUS_ZNEG)
1923 			      ? ((pBuf[2] & 0x07) - 8) : (pBuf[2] & 0x07);
1924 	    } else {
1925 		/* preserve previous button states */
1926 		act->button |= act->obutton & MOUSE_EXTBUTTONS;
1927 	    }
1928 	    break;
1929 	case MOUSE_MODEL_GENERIC:
1930 	default:
1931 	    break;
1932 	}
1933 	break;
1934 
1935     case MOUSE_PROTO_SYSMOUSE:		/* sysmouse */
1936 	act->button = butmapmsc[(~pBuf[0]) & MOUSE_SYS_STDBUTTONS];
1937 	act->dx =    (char)(pBuf[1]) + (char)(pBuf[3]);
1938 	act->dy = - ((char)(pBuf[2]) + (char)(pBuf[4]));
1939 	if (rodent.level == 1) {
1940 	    act->dz = ((char)(pBuf[5] << 1) + (char)(pBuf[6] << 1))/2;
1941 	    act->button |= ((~pBuf[7] & MOUSE_SYS_EXTBUTTONS) << 3);
1942 	}
1943 	break;
1944 
1945     default:
1946 	return 0;
1947     }
1948     /*
1949      * We don't reset pBufP here yet, as there may be an additional data
1950      * byte in some protocols. See above.
1951      */
1952 
1953     /* has something changed? */
1954     act->flags = ((act->dx || act->dy || act->dz) ? MOUSE_POSCHANGED : 0)
1955 	| (act->obutton ^ act->button);
1956 
1957     return act->flags;
1958 }
1959 
1960 static int
1961 r_statetrans(mousestatus_t *a1, mousestatus_t *a2, int trans)
1962 {
1963     int changed;
1964     int flags;
1965 
1966     a2->dx = a1->dx;
1967     a2->dy = a1->dy;
1968     a2->dz = a1->dz;
1969     a2->obutton = a2->button;
1970     a2->button = a1->button;
1971     a2->flags = a1->flags;
1972     changed = FALSE;
1973 
1974     if (rodent.flags & Emulate3Button) {
1975 	if (debug > 2)
1976 	    debug("state:%d, trans:%d -> state:%d",
1977 		  mouse_button_state, trans,
1978 		  states[mouse_button_state].s[trans]);
1979 	/*
1980 	 * Avoid re-ordering button and movement events. While a button
1981 	 * event is deferred, throw away up to BUTTON2_MAXMOVE movement
1982 	 * events to allow for mouse jitter. If more movement events
1983 	 * occur, then complete the deferred button events immediately.
1984 	 */
1985 	if ((a2->dx != 0 || a2->dy != 0) &&
1986 	    S_DELAYED(states[mouse_button_state].s[trans])) {
1987 		if (++mouse_move_delayed > BUTTON2_MAXMOVE) {
1988 			mouse_move_delayed = 0;
1989 			mouse_button_state =
1990 			    states[mouse_button_state].s[A_TIMEOUT];
1991 			changed = TRUE;
1992 		} else
1993 			a2->dx = a2->dy = 0;
1994 	} else
1995 		mouse_move_delayed = 0;
1996 	if (mouse_button_state != states[mouse_button_state].s[trans])
1997 		changed = TRUE;
1998 	if (changed)
1999 		gettimeofday(&mouse_button_state_tv, NULL);
2000 	mouse_button_state = states[mouse_button_state].s[trans];
2001 	a2->button &=
2002 	    ~(MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN);
2003 	a2->button &= states[mouse_button_state].mask;
2004 	a2->button |= states[mouse_button_state].buttons;
2005 	flags = a2->flags & MOUSE_POSCHANGED;
2006 	flags |= a2->obutton ^ a2->button;
2007 	if (flags & MOUSE_BUTTON2DOWN) {
2008 	    a2->flags = flags & MOUSE_BUTTON2DOWN;
2009 	    r_timestamp(a2);
2010 	}
2011 	a2->flags = flags;
2012     }
2013     return changed;
2014 }
2015 
2016 /* phisical to logical button mapping */
2017 static int p2l[MOUSE_MAXBUTTON] = {
2018     MOUSE_BUTTON1DOWN, MOUSE_BUTTON2DOWN, MOUSE_BUTTON3DOWN, MOUSE_BUTTON4DOWN,
2019     MOUSE_BUTTON5DOWN, MOUSE_BUTTON6DOWN, MOUSE_BUTTON7DOWN, MOUSE_BUTTON8DOWN,
2020     0x00000100,        0x00000200,        0x00000400,        0x00000800,
2021     0x00001000,        0x00002000,        0x00004000,        0x00008000,
2022     0x00010000,        0x00020000,        0x00040000,        0x00080000,
2023     0x00100000,        0x00200000,        0x00400000,        0x00800000,
2024     0x01000000,        0x02000000,        0x04000000,        0x08000000,
2025     0x10000000,        0x20000000,        0x40000000,
2026 };
2027 
2028 static char *
2029 skipspace(char *s)
2030 {
2031     while(isspace(*s))
2032 	++s;
2033     return s;
2034 }
2035 
2036 static int
2037 r_installmap(char *arg)
2038 {
2039     int pbutton;
2040     int lbutton;
2041     char *s;
2042 
2043     while (*arg) {
2044 	arg = skipspace(arg);
2045 	s = arg;
2046 	while (isdigit(*arg))
2047 	    ++arg;
2048 	arg = skipspace(arg);
2049 	if ((arg <= s) || (*arg != '='))
2050 	    return FALSE;
2051 	lbutton = atoi(s);
2052 
2053 	arg = skipspace(++arg);
2054 	s = arg;
2055 	while (isdigit(*arg))
2056 	    ++arg;
2057 	if ((arg <= s) || (!isspace(*arg) && (*arg != '\0')))
2058 	    return FALSE;
2059 	pbutton = atoi(s);
2060 
2061 	if ((lbutton <= 0) || (lbutton > MOUSE_MAXBUTTON))
2062 	    return FALSE;
2063 	if ((pbutton <= 0) || (pbutton > MOUSE_MAXBUTTON))
2064 	    return FALSE;
2065 	p2l[pbutton - 1] = 1 << (lbutton - 1);
2066 	mstate[lbutton - 1] = &bstate[pbutton - 1];
2067     }
2068 
2069     return TRUE;
2070 }
2071 
2072 static void
2073 r_map(mousestatus_t *act1, mousestatus_t *act2)
2074 {
2075     register int pb;
2076     register int pbuttons;
2077     int lbuttons;
2078 
2079     pbuttons = act1->button;
2080     lbuttons = 0;
2081 
2082     act2->obutton = act2->button;
2083     if (pbuttons & rodent.wmode) {
2084 	pbuttons &= ~rodent.wmode;
2085 	act1->dz = act1->dy;
2086 	act1->dx = 0;
2087 	act1->dy = 0;
2088     }
2089     act2->dx = act1->dx;
2090     act2->dy = act1->dy;
2091     act2->dz = act1->dz;
2092 
2093     switch (rodent.zmap[0]) {
2094     case 0:	/* do nothing */
2095 	break;
2096     case MOUSE_XAXIS:
2097 	if (act1->dz != 0) {
2098 	    act2->dx = act1->dz;
2099 	    act2->dz = 0;
2100 	}
2101 	break;
2102     case MOUSE_YAXIS:
2103 	if (act1->dz != 0) {
2104 	    act2->dy = act1->dz;
2105 	    act2->dz = 0;
2106 	}
2107 	break;
2108     default:	/* buttons */
2109 	pbuttons &= ~(rodent.zmap[0] | rodent.zmap[1]
2110 		    | rodent.zmap[2] | rodent.zmap[3]);
2111 	if ((act1->dz < -1) && rodent.zmap[2]) {
2112 	    pbuttons |= rodent.zmap[2];
2113 	    zstate[2].count = 1;
2114 	} else if (act1->dz < 0) {
2115 	    pbuttons |= rodent.zmap[0];
2116 	    zstate[0].count = 1;
2117 	} else if ((act1->dz > 1) && rodent.zmap[3]) {
2118 	    pbuttons |= rodent.zmap[3];
2119 	    zstate[3].count = 1;
2120 	} else if (act1->dz > 0) {
2121 	    pbuttons |= rodent.zmap[1];
2122 	    zstate[1].count = 1;
2123 	}
2124 	act2->dz = 0;
2125 	break;
2126     }
2127 
2128     for (pb = 0; (pb < MOUSE_MAXBUTTON) && (pbuttons != 0); ++pb) {
2129 	lbuttons |= (pbuttons & 1) ? p2l[pb] : 0;
2130 	pbuttons >>= 1;
2131     }
2132     act2->button = lbuttons;
2133 
2134     act2->flags = ((act2->dx || act2->dy || act2->dz) ? MOUSE_POSCHANGED : 0)
2135 	| (act2->obutton ^ act2->button);
2136 }
2137 
2138 static void
2139 r_timestamp(mousestatus_t *act)
2140 {
2141     struct timeval tv;
2142     struct timeval tv1;
2143     struct timeval tv2;
2144     struct timeval tv3;
2145     int button;
2146     int mask;
2147     int i;
2148 
2149     mask = act->flags & MOUSE_BUTTONS;
2150 #if 0
2151     if (mask == 0)
2152 	return;
2153 #endif
2154 
2155     gettimeofday(&tv1, NULL);
2156 
2157     /* double click threshold */
2158     tv2.tv_sec = rodent.clickthreshold/1000;
2159     tv2.tv_usec = (rodent.clickthreshold%1000)*1000;
2160     timersub(&tv1, &tv2, &tv);
2161     debug("tv:  %ld %ld", tv.tv_sec, tv.tv_usec);
2162 
2163     /* 3 button emulation timeout */
2164     tv2.tv_sec = rodent.button2timeout/1000;
2165     tv2.tv_usec = (rodent.button2timeout%1000)*1000;
2166     timersub(&tv1, &tv2, &tv3);
2167 
2168     button = MOUSE_BUTTON1DOWN;
2169     for (i = 0; (i < MOUSE_MAXBUTTON) && (mask != 0); ++i) {
2170         if (mask & 1) {
2171             if (act->button & button) {
2172                 /* the button is down */
2173     		debug("  :  %ld %ld",
2174 		    bstate[i].tv.tv_sec, bstate[i].tv.tv_usec);
2175 		if (timercmp(&tv, &bstate[i].tv, >)) {
2176                     bstate[i].count = 1;
2177                 } else {
2178                     ++bstate[i].count;
2179                 }
2180 		bstate[i].tv = tv1;
2181             } else {
2182                 /* the button is up */
2183                 bstate[i].tv = tv1;
2184             }
2185         } else {
2186 	    if (act->button & button) {
2187 		/* the button has been down */
2188 		if (timercmp(&tv3, &bstate[i].tv, >)) {
2189 		    bstate[i].count = 1;
2190 		    bstate[i].tv = tv1;
2191 		    act->flags |= button;
2192 		    debug("button %d timeout", i + 1);
2193 		}
2194 	    } else {
2195 		/* the button has been up */
2196 	    }
2197 	}
2198 	button <<= 1;
2199 	mask >>= 1;
2200     }
2201 }
2202 
2203 static int
2204 r_timeout(void)
2205 {
2206     struct timeval tv;
2207     struct timeval tv1;
2208     struct timeval tv2;
2209 
2210     if (states[mouse_button_state].timeout)
2211 	return TRUE;
2212     gettimeofday(&tv1, NULL);
2213     tv2.tv_sec = rodent.button2timeout/1000;
2214     tv2.tv_usec = (rodent.button2timeout%1000)*1000;
2215     timersub(&tv1, &tv2, &tv);
2216     return timercmp(&tv, &mouse_button_state_tv, >);
2217 }
2218 
2219 static void
2220 r_click(mousestatus_t *act)
2221 {
2222     struct mouse_info mouse;
2223     int button;
2224     int mask;
2225     int i;
2226 
2227     mask = act->flags & MOUSE_BUTTONS;
2228     if (mask == 0)
2229 	return;
2230 
2231     button = MOUSE_BUTTON1DOWN;
2232     for (i = 0; (i < MOUSE_MAXBUTTON) && (mask != 0); ++i) {
2233         if (mask & 1) {
2234 	    debug("mstate[%d]->count:%d", i, mstate[i]->count);
2235             if (act->button & button) {
2236                 /* the button is down */
2237 	        mouse.u.event.value = mstate[i]->count;
2238             } else {
2239                 /* the button is up */
2240 	        mouse.u.event.value = 0;
2241             }
2242 	    mouse.operation = MOUSE_BUTTON_EVENT;
2243 	    mouse.u.event.id = button;
2244 	    if (debug < 2)
2245 	        ioctl(rodent.cfd, CONS_MOUSECTL, &mouse);
2246 	    debug("button %d  count %d", i + 1, mouse.u.event.value);
2247         }
2248 	button <<= 1;
2249 	mask >>= 1;
2250     }
2251 }
2252 
2253 /* $XConsortium: posix_tty.c,v 1.3 95/01/05 20:42:55 kaleb Exp $ */
2254 /* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/shared/posix_tty.c,v 3.4 1995/01/28 17:05:03 dawes Exp $ */
2255 /*
2256  * Copyright 1993 by David Dawes <dawes@physics.su.oz.au>
2257  *
2258  * Permission to use, copy, modify, distribute, and sell this software and its
2259  * documentation for any purpose is hereby granted without fee, provided that
2260  * the above copyright notice appear in all copies and that both that
2261  * copyright notice and this permission notice appear in supporting
2262  * documentation, and that the name of David Dawes
2263  * not be used in advertising or publicity pertaining to distribution of
2264  * the software without specific, written prior permission.
2265  * David Dawes makes no representations about the suitability of this
2266  * software for any purpose.  It is provided "as is" without express or
2267  * implied warranty.
2268  *
2269  * DAVID DAWES DISCLAIMS ALL WARRANTIES WITH REGARD TO
2270  * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
2271  * FITNESS, IN NO EVENT SHALL DAVID DAWES BE LIABLE FOR
2272  * ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
2273  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
2274  * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
2275  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
2276  *
2277  */
2278 
2279 
2280 static void
2281 setmousespeed(int old, int new, unsigned cflag)
2282 {
2283 	struct termios tty;
2284 	char *c;
2285 
2286 	if (tcgetattr(rodent.mfd, &tty) < 0)
2287 	{
2288 		logwarn("unable to get status of mouse fd", 0);
2289 		return;
2290 	}
2291 
2292 	tty.c_iflag = IGNBRK | IGNPAR;
2293 	tty.c_oflag = 0;
2294 	tty.c_lflag = 0;
2295 	tty.c_cflag = (tcflag_t)cflag;
2296 	tty.c_cc[VTIME] = 0;
2297 	tty.c_cc[VMIN] = 1;
2298 
2299 	switch (old)
2300 	{
2301 	case 9600:
2302 		cfsetispeed(&tty, B9600);
2303 		cfsetospeed(&tty, B9600);
2304 		break;
2305 	case 4800:
2306 		cfsetispeed(&tty, B4800);
2307 		cfsetospeed(&tty, B4800);
2308 		break;
2309 	case 2400:
2310 		cfsetispeed(&tty, B2400);
2311 		cfsetospeed(&tty, B2400);
2312 		break;
2313 	case 1200:
2314 	default:
2315 		cfsetispeed(&tty, B1200);
2316 		cfsetospeed(&tty, B1200);
2317 	}
2318 
2319 	if (tcsetattr(rodent.mfd, TCSADRAIN, &tty) < 0)
2320 	{
2321 		logwarn("unable to set status of mouse fd", 0);
2322 		return;
2323 	}
2324 
2325 	switch (new)
2326 	{
2327 	case 9600:
2328 		c = "*q";
2329 		cfsetispeed(&tty, B9600);
2330 		cfsetospeed(&tty, B9600);
2331 		break;
2332 	case 4800:
2333 		c = "*p";
2334 		cfsetispeed(&tty, B4800);
2335 		cfsetospeed(&tty, B4800);
2336 		break;
2337 	case 2400:
2338 		c = "*o";
2339 		cfsetispeed(&tty, B2400);
2340 		cfsetospeed(&tty, B2400);
2341 		break;
2342 	case 1200:
2343 	default:
2344 		c = "*n";
2345 		cfsetispeed(&tty, B1200);
2346 		cfsetospeed(&tty, B1200);
2347 	}
2348 
2349 	if (rodent.rtype == MOUSE_PROTO_LOGIMOUSEMAN
2350 	    || rodent.rtype == MOUSE_PROTO_LOGI)
2351 	{
2352 		if (write(rodent.mfd, c, 2) != 2)
2353 		{
2354 			logwarn("unable to write to mouse fd", 0);
2355 			return;
2356 		}
2357 	}
2358 	usleep(100000);
2359 
2360 	if (tcsetattr(rodent.mfd, TCSADRAIN, &tty) < 0)
2361 		logwarn("unable to set status of mouse fd", 0);
2362 }
2363 
2364 /*
2365  * PnP COM device support
2366  *
2367  * It's a simplistic implementation, but it works :-)
2368  * KY, 31/7/97.
2369  */
2370 
2371 /*
2372  * Try to elicit a PnP ID as described in
2373  * Microsoft, Hayes: "Plug and Play External COM Device Specification,
2374  * rev 1.00", 1995.
2375  *
2376  * The routine does not fully implement the COM Enumerator as par Section
2377  * 2.1 of the document.  In particular, we don't have idle state in which
2378  * the driver software monitors the com port for dynamic connection or
2379  * removal of a device at the port, because `moused' simply quits if no
2380  * device is found.
2381  *
2382  * In addition, as PnP COM device enumeration procedure slightly has
2383  * changed since its first publication, devices which follow earlier
2384  * revisions of the above spec. may fail to respond if the rev 1.0
2385  * procedure is used. XXX
2386  */
2387 static int
2388 pnpwakeup1(void)
2389 {
2390     struct timeval timeout;
2391     fd_set fds;
2392     int i;
2393 
2394     /*
2395      * This is the procedure described in rev 1.0 of PnP COM device spec.
2396      * Unfortunately, some devices which comform to earlier revisions of
2397      * the spec gets confused and do not return the ID string...
2398      */
2399     debug("PnP COM device rev 1.0 probe...");
2400 
2401     /* port initialization (2.1.2) */
2402     ioctl(rodent.mfd, TIOCMGET, &i);
2403     i |= TIOCM_DTR;		/* DTR = 1 */
2404     i &= ~TIOCM_RTS;		/* RTS = 0 */
2405     ioctl(rodent.mfd, TIOCMSET, &i);
2406     usleep(240000);
2407 
2408     /*
2409      * The PnP COM device spec. dictates that the mouse must set DSR
2410      * in response to DTR (by hardware or by software) and that if DSR is
2411      * not asserted, the host computer should think that there is no device
2412      * at this serial port.  But some mice just don't do that...
2413      */
2414     ioctl(rodent.mfd, TIOCMGET, &i);
2415     debug("modem status 0%o", i);
2416     if ((i & TIOCM_DSR) == 0)
2417 	return FALSE;
2418 
2419     /* port setup, 1st phase (2.1.3) */
2420     setmousespeed(1200, 1200, (CS7 | CREAD | CLOCAL | HUPCL));
2421     i = TIOCM_DTR | TIOCM_RTS;	/* DTR = 0, RTS = 0 */
2422     ioctl(rodent.mfd, TIOCMBIC, &i);
2423     usleep(240000);
2424     i = TIOCM_DTR;		/* DTR = 1, RTS = 0 */
2425     ioctl(rodent.mfd, TIOCMBIS, &i);
2426     usleep(240000);
2427 
2428     /* wait for response, 1st phase (2.1.4) */
2429     i = FREAD;
2430     ioctl(rodent.mfd, TIOCFLUSH, &i);
2431     i = TIOCM_RTS;		/* DTR = 1, RTS = 1 */
2432     ioctl(rodent.mfd, TIOCMBIS, &i);
2433 
2434     /* try to read something */
2435     FD_ZERO(&fds);
2436     FD_SET(rodent.mfd, &fds);
2437     timeout.tv_sec = 0;
2438     timeout.tv_usec = 240000;
2439     if (select(FD_SETSIZE, &fds, NULL, NULL, &timeout) > 0) {
2440 	debug("pnpwakeup1(): valid response in first phase.");
2441 	return TRUE;
2442     }
2443 
2444     /* port setup, 2nd phase (2.1.5) */
2445     i = TIOCM_DTR | TIOCM_RTS;	/* DTR = 0, RTS = 0 */
2446     ioctl(rodent.mfd, TIOCMBIC, &i);
2447     usleep(240000);
2448 
2449     /* wait for respose, 2nd phase (2.1.6) */
2450     i = FREAD;
2451     ioctl(rodent.mfd, TIOCFLUSH, &i);
2452     i = TIOCM_DTR | TIOCM_RTS;	/* DTR = 1, RTS = 1 */
2453     ioctl(rodent.mfd, TIOCMBIS, &i);
2454 
2455     /* try to read something */
2456     FD_ZERO(&fds);
2457     FD_SET(rodent.mfd, &fds);
2458     timeout.tv_sec = 0;
2459     timeout.tv_usec = 240000;
2460     if (select(FD_SETSIZE, &fds, NULL, NULL, &timeout) > 0) {
2461 	debug("pnpwakeup1(): valid response in second phase.");
2462 	return TRUE;
2463     }
2464 
2465     return FALSE;
2466 }
2467 
2468 static int
2469 pnpwakeup2(void)
2470 {
2471     struct timeval timeout;
2472     fd_set fds;
2473     int i;
2474 
2475     /*
2476      * This is a simplified procedure; it simply toggles RTS.
2477      */
2478     debug("alternate probe...");
2479 
2480     ioctl(rodent.mfd, TIOCMGET, &i);
2481     i |= TIOCM_DTR;		/* DTR = 1 */
2482     i &= ~TIOCM_RTS;		/* RTS = 0 */
2483     ioctl(rodent.mfd, TIOCMSET, &i);
2484     usleep(240000);
2485 
2486     setmousespeed(1200, 1200, (CS7 | CREAD | CLOCAL | HUPCL));
2487 
2488     /* wait for respose */
2489     i = FREAD;
2490     ioctl(rodent.mfd, TIOCFLUSH, &i);
2491     i = TIOCM_DTR | TIOCM_RTS;	/* DTR = 1, RTS = 1 */
2492     ioctl(rodent.mfd, TIOCMBIS, &i);
2493 
2494     /* try to read something */
2495     FD_ZERO(&fds);
2496     FD_SET(rodent.mfd, &fds);
2497     timeout.tv_sec = 0;
2498     timeout.tv_usec = 240000;
2499     if (select(FD_SETSIZE, &fds, NULL, NULL, &timeout) > 0) {
2500 	debug("pnpwakeup2(): valid response.");
2501 	return TRUE;
2502     }
2503 
2504     return FALSE;
2505 }
2506 
2507 static int
2508 pnpgets(char *buf)
2509 {
2510     struct timeval timeout;
2511     fd_set fds;
2512     int begin;
2513     int i;
2514     char c;
2515 
2516     if (!pnpwakeup1() && !pnpwakeup2()) {
2517 	/*
2518 	 * According to PnP spec, we should set DTR = 1 and RTS = 0 while
2519 	 * in idle state.  But, `moused' shall set DTR = RTS = 1 and proceed,
2520 	 * assuming there is something at the port even if it didn't
2521 	 * respond to the PnP enumeration procedure.
2522 	 */
2523 disconnect_idle:
2524 	i = TIOCM_DTR | TIOCM_RTS;		/* DTR = 1, RTS = 1 */
2525 	ioctl(rodent.mfd, TIOCMBIS, &i);
2526 	return 0;
2527     }
2528 
2529     /* collect PnP COM device ID (2.1.7) */
2530     begin = -1;
2531     i = 0;
2532     usleep(240000);	/* the mouse must send `Begin ID' within 200msec */
2533     while (read(rodent.mfd, &c, 1) == 1) {
2534 	/* we may see "M", or "M3..." before `Begin ID' */
2535 	buf[i++] = c;
2536         if ((c == 0x08) || (c == 0x28)) {	/* Begin ID */
2537 	    debug("begin-id %02x", c);
2538 	    begin = i - 1;
2539 	    break;
2540         }
2541         debug("%c %02x", c, c);
2542 	if (i >= 256)
2543 	    break;
2544     }
2545     if (begin < 0) {
2546 	/* we haven't seen `Begin ID' in time... */
2547 	goto connect_idle;
2548     }
2549 
2550     ++c;			/* make it `End ID' */
2551     for (;;) {
2552         FD_ZERO(&fds);
2553         FD_SET(rodent.mfd, &fds);
2554         timeout.tv_sec = 0;
2555         timeout.tv_usec = 240000;
2556         if (select(FD_SETSIZE, &fds, NULL, NULL, &timeout) <= 0)
2557 	    break;
2558 
2559 	read(rodent.mfd, &buf[i], 1);
2560         if (buf[i++] == c)	/* End ID */
2561 	    break;
2562 	if (i >= 256)
2563 	    break;
2564     }
2565     if (begin > 0) {
2566 	i -= begin;
2567 	bcopy(&buf[begin], &buf[0], i);
2568     }
2569     /* string may not be human readable... */
2570     debug("len:%d, '%-*.*s'", i, i, i, buf);
2571 
2572     if (buf[i - 1] == c)
2573 	return i;		/* a valid PnP string */
2574 
2575     /*
2576      * According to PnP spec, we should set DTR = 1 and RTS = 0 while
2577      * in idle state.  But, `moused' shall leave the modem control lines
2578      * as they are. See above.
2579      */
2580 connect_idle:
2581 
2582     /* we may still have something in the buffer */
2583     return ((i > 0) ? i : 0);
2584 }
2585 
2586 static int
2587 pnpparse(pnpid_t *id, char *buf, int len)
2588 {
2589     char s[3];
2590     int offset;
2591     int sum = 0;
2592     int i, j;
2593 
2594     id->revision = 0;
2595     id->eisaid = NULL;
2596     id->serial = NULL;
2597     id->class = NULL;
2598     id->compat = NULL;
2599     id->description = NULL;
2600     id->neisaid = 0;
2601     id->nserial = 0;
2602     id->nclass = 0;
2603     id->ncompat = 0;
2604     id->ndescription = 0;
2605 
2606     if ((buf[0] != 0x28) && (buf[0] != 0x08)) {
2607 	/* non-PnP mice */
2608 	switch(buf[0]) {
2609 	default:
2610 	    return FALSE;
2611 	case 'M': /* Microsoft */
2612 	    id->eisaid = "PNP0F01";
2613 	    break;
2614 	case 'H': /* MouseSystems */
2615 	    id->eisaid = "PNP0F04";
2616 	    break;
2617 	}
2618 	id->neisaid = strlen(id->eisaid);
2619 	id->class = "MOUSE";
2620 	id->nclass = strlen(id->class);
2621 	debug("non-PnP mouse '%c'", buf[0]);
2622 	return TRUE;
2623     }
2624 
2625     /* PnP mice */
2626     offset = 0x28 - buf[0];
2627 
2628     /* calculate checksum */
2629     for (i = 0; i < len - 3; ++i) {
2630 	sum += buf[i];
2631 	buf[i] += offset;
2632     }
2633     sum += buf[len - 1];
2634     for (; i < len; ++i)
2635 	buf[i] += offset;
2636     debug("PnP ID string: '%*.*s'", len, len, buf);
2637 
2638     /* revision */
2639     buf[1] -= offset;
2640     buf[2] -= offset;
2641     id->revision = ((buf[1] & 0x3f) << 6) | (buf[2] & 0x3f);
2642     debug("PnP rev %d.%02d", id->revision / 100, id->revision % 100);
2643 
2644     /* EISA vender and product ID */
2645     id->eisaid = &buf[3];
2646     id->neisaid = 7;
2647 
2648     /* option strings */
2649     i = 10;
2650     if (buf[i] == '\\') {
2651         /* device serial # */
2652         for (j = ++i; i < len; ++i) {
2653             if (buf[i] == '\\')
2654 		break;
2655         }
2656 	if (i >= len)
2657 	    i -= 3;
2658 	if (i - j == 8) {
2659             id->serial = &buf[j];
2660             id->nserial = 8;
2661 	}
2662     }
2663     if (buf[i] == '\\') {
2664         /* PnP class */
2665         for (j = ++i; i < len; ++i) {
2666             if (buf[i] == '\\')
2667 		break;
2668         }
2669 	if (i >= len)
2670 	    i -= 3;
2671 	if (i > j + 1) {
2672             id->class = &buf[j];
2673             id->nclass = i - j;
2674         }
2675     }
2676     if (buf[i] == '\\') {
2677 	/* compatible driver */
2678         for (j = ++i; i < len; ++i) {
2679             if (buf[i] == '\\')
2680 		break;
2681         }
2682 	/*
2683 	 * PnP COM spec prior to v0.96 allowed '*' in this field,
2684 	 * it's not allowed now; just igore it.
2685 	 */
2686 	if (buf[j] == '*')
2687 	    ++j;
2688 	if (i >= len)
2689 	    i -= 3;
2690 	if (i > j + 1) {
2691             id->compat = &buf[j];
2692             id->ncompat = i - j;
2693         }
2694     }
2695     if (buf[i] == '\\') {
2696 	/* product description */
2697         for (j = ++i; i < len; ++i) {
2698             if (buf[i] == ';')
2699 		break;
2700         }
2701 	if (i >= len)
2702 	    i -= 3;
2703 	if (i > j + 1) {
2704             id->description = &buf[j];
2705             id->ndescription = i - j;
2706         }
2707     }
2708 
2709     /* checksum exists if there are any optional fields */
2710     if ((id->nserial > 0) || (id->nclass > 0)
2711 	|| (id->ncompat > 0) || (id->ndescription > 0)) {
2712         debug("PnP checksum: 0x%X", sum);
2713         sprintf(s, "%02X", sum & 0x0ff);
2714         if (strncmp(s, &buf[len - 3], 2) != 0) {
2715 #if 0
2716             /*
2717 	     * I found some mice do not comply with the PnP COM device
2718 	     * spec regarding checksum... XXX
2719 	     */
2720             logwarnx("PnP checksum error", 0);
2721 	    return FALSE;
2722 #endif
2723         }
2724     }
2725 
2726     return TRUE;
2727 }
2728 
2729 static symtab_t *
2730 pnpproto(pnpid_t *id)
2731 {
2732     symtab_t *t;
2733     int i, j;
2734 
2735     if (id->nclass > 0)
2736 	if ( strncmp(id->class, "MOUSE", id->nclass) != 0 &&
2737 	     strncmp(id->class, "TABLET", id->nclass) != 0)
2738 	    /* this is not a mouse! */
2739 	    return NULL;
2740 
2741     if (id->neisaid > 0) {
2742         t = gettoken(pnpprod, id->eisaid, id->neisaid);
2743 	if (t->val != MOUSE_PROTO_UNKNOWN)
2744             return t;
2745     }
2746 
2747     /*
2748      * The 'Compatible drivers' field may contain more than one
2749      * ID separated by ','.
2750      */
2751     if (id->ncompat <= 0)
2752 	return NULL;
2753     for (i = 0; i < id->ncompat; ++i) {
2754         for (j = i; id->compat[i] != ','; ++i)
2755             if (i >= id->ncompat)
2756 		break;
2757         if (i > j) {
2758             t = gettoken(pnpprod, id->compat + j, i - j);
2759 	    if (t->val != MOUSE_PROTO_UNKNOWN)
2760                 return t;
2761 	}
2762     }
2763 
2764     return NULL;
2765 }
2766 
2767 /* name/val mapping */
2768 
2769 static symtab_t *
2770 gettoken(symtab_t *tab, char *s, int len)
2771 {
2772     int i;
2773 
2774     for (i = 0; tab[i].name != NULL; ++i) {
2775 	if (strncmp(tab[i].name, s, len) == 0)
2776 	    break;
2777     }
2778     return &tab[i];
2779 }
2780 
2781 static char *
2782 gettokenname(symtab_t *tab, int val)
2783 {
2784     int i;
2785 
2786     for (i = 0; tab[i].name != NULL; ++i) {
2787 	if (tab[i].val == val)
2788 	    return tab[i].name;
2789     }
2790     return NULL;
2791 }
2792 
2793 
2794 /*
2795  * code to read from the Genius Kidspad tablet.
2796 
2797 The tablet responds to the COM PnP protocol 1.0 with EISA-ID KYE0005,
2798 and to pre-pnp probes (RTS toggle) with 'T' (tablet ?)
2799 9600, 8 bit, parity odd.
2800 
2801 The tablet puts out 5 bytes. b0 (mask 0xb8, value 0xb8) contains
2802 the proximity, tip and button info:
2803    (byte0 & 0x1)	true = tip pressed
2804    (byte0 & 0x2)	true = button pressed
2805    (byte0 & 0x40)	false = pen in proximity of tablet.
2806 
2807 The next 4 bytes are used for coordinates xl, xh, yl, yh (7 bits valid).
2808 
2809 Only absolute coordinates are returned, so we use the following approach:
2810 we store the last coordinates sent when the pen went out of the tablet,
2811 
2812 
2813  *
2814  */
2815 
2816 typedef enum {
2817     S_IDLE, S_PROXY, S_FIRST, S_DOWN, S_UP
2818 } k_status ;
2819 
2820 static int
2821 kidspad(u_char rxc, mousestatus_t *act)
2822 {
2823     static buf[5];
2824     static int buflen = 0, b_prev = 0 , x_prev = -1, y_prev = -1 ;
2825     static k_status status = S_IDLE ;
2826     static struct timeval old, now ;
2827 
2828     int x, y ;
2829 
2830     if (buflen > 0 && (rxc & 0x80) ) {
2831 	fprintf(stderr, "invalid code %d 0x%x\n", buflen, rxc);
2832 	buflen = 0 ;
2833     }
2834     if (buflen == 0 && (rxc & 0xb8) != 0xb8 ) {
2835 	fprintf(stderr, "invalid code 0 0x%x\n", rxc);
2836 	return 0 ; /* invalid code, no action */
2837     }
2838     buf[buflen++] = rxc ;
2839     if (buflen < 5)
2840 	return 0 ;
2841 
2842     buflen = 0 ; /* for next time... */
2843 
2844     x = buf[1]+128*(buf[2] - 7) ;
2845     if (x < 0) x = 0 ;
2846     y = 28*128 - (buf[3] + 128* (buf[4] - 7)) ;
2847     if (y < 0) y = 0 ;
2848 
2849     x /= 8 ;
2850     y /= 8 ;
2851 
2852     act->flags = 0 ;
2853     act->obutton = act->button ;
2854     act->dx = act->dy = act->dz = 0 ;
2855     gettimeofday(&now, NULL);
2856     if ( buf[0] & 0x40 ) /* pen went out of reach */
2857 	status = S_IDLE ;
2858     else if (status == S_IDLE) { /* pen is newly near the tablet */
2859 	act->flags |= MOUSE_POSCHANGED ; /* force update */
2860 	status = S_PROXY ;
2861 	x_prev = x ;
2862 	y_prev = y ;
2863     }
2864     old = now ;
2865     act->dx = x - x_prev ;
2866     act->dy = y - y_prev ;
2867     if (act->dx || act->dy)
2868 	act->flags |= MOUSE_POSCHANGED ;
2869     x_prev = x ;
2870     y_prev = y ;
2871     if (b_prev != 0 && b_prev != buf[0]) { /* possibly record button change */
2872 	act->button = 0 ;
2873 	if ( buf[0] & 0x01 ) /* tip pressed */
2874 	    act->button |= MOUSE_BUTTON1DOWN ;
2875 	if ( buf[0] & 0x02 ) /* button pressed */
2876 	    act->button |= MOUSE_BUTTON2DOWN ;
2877 	act->flags |= MOUSE_BUTTONSCHANGED ;
2878     }
2879     b_prev = buf[0] ;
2880     return act->flags ;
2881 }
2882 
2883 static void
2884 mremote_serversetup()
2885 {
2886     struct sockaddr_un ad;
2887 
2888     /* Open a UNIX domain stream socket to listen for mouse remote clients */
2889     unlink(_PATH_MOUSEREMOTE);
2890 
2891     if ( (rodent.mremsfd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0)
2892 	logerrx(1, "unable to create unix domain socket %s",_PATH_MOUSEREMOTE);
2893 
2894     umask(0111);
2895 
2896     bzero(&ad, sizeof(ad));
2897     ad.sun_family = AF_UNIX;
2898     strcpy(ad.sun_path, _PATH_MOUSEREMOTE);
2899 #ifndef SUN_LEN
2900 #define SUN_LEN(unp) ( ((char *)(unp)->sun_path - (char *)(unp)) + \
2901                        strlen((unp)->path) )
2902 #endif
2903     if (bind(rodent.mremsfd, (struct sockaddr *) &ad, SUN_LEN(&ad)) < 0)
2904 	logerrx(1, "unable to bind unix domain socket %s", _PATH_MOUSEREMOTE);
2905 
2906     listen(rodent.mremsfd, 1);
2907 }
2908 
2909 static void
2910 mremote_clientchg(int add)
2911 {
2912     struct sockaddr_un ad;
2913     int ad_len, fd;
2914 
2915     if (rodent.rtype != MOUSE_PROTO_X10MOUSEREM)
2916 	return;
2917 
2918     if ( add ) {
2919 	/*  Accept client connection, if we don't already have one  */
2920 	ad_len = sizeof(ad);
2921 	fd = accept(rodent.mremsfd, (struct sockaddr *) &ad, &ad_len);
2922 	if (fd < 0)
2923 	    logwarnx("failed accept on mouse remote socket");
2924 
2925 	if ( rodent.mremcfd < 0 ) {
2926 	    rodent.mremcfd = fd;
2927 	    debug("remote client connect...accepted");
2928 	}
2929 	else {
2930 	    close(fd);
2931 	    debug("another remote client connect...disconnected");
2932 	}
2933     }
2934     else {
2935 	/* Client disconnected */
2936 	debug("remote client disconnected");
2937 	close( rodent.mremcfd );
2938 	rodent.mremcfd = -1;
2939     }
2940 }
2941 
2942 
2943