moused.c revision 1.2
1/* $NetBSD: moused.c,v 1.2 2001/10/29 23:38:42 augustss Exp $ */
2/**
3 ** Copyright (c) 1995 Michael Smith, All rights reserved.
4 **
5 ** Redistribution and use in source and binary forms, with or without
6 ** modification, are permitted provided that the following conditions
7 ** are met:
8 ** 1. Redistributions of source code must retain the above copyright
9 **    notice, this list of conditions and the following disclaimer as
10 **    the first lines of this file unmodified.
11 ** 2. Redistributions in binary form must reproduce the above copyright
12 **    notice, this list of conditions and the following disclaimer in the
13 **    documentation and/or other materials provided with the distribution.
14 ** 3. All advertising materials mentioning features or use of this software
15 **    must display the following acknowledgment:
16 **      This product includes software developed by Michael Smith.
17 ** 4. The name of the author may not be used to endorse or promote products
18 **    derived from this software without specific prior written permission.
19 **
20 **
21 ** THIS SOFTWARE IS PROVIDED BY Michael Smith ``AS IS'' AND ANY
22 ** EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 ** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 ** PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Michael Smith BE LIABLE FOR
25 ** ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 ** CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 ** SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
28 ** BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29 ** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
30 ** OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
31 ** EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 **
33 **/
34
35/**
36 ** MOUSED.C
37 **
38 ** Mouse daemon : listens to a serial port, the bus mouse interface, or
39 ** the PS/2 mouse port for mouse data stream, interprets data and passes
40 ** ioctls off to the console driver.
41 **
42 ** The mouse interface functions are derived closely from the mouse
43 ** handler in the XFree86 X server.  Many thanks to the XFree86 people
44 ** for their great work!
45 **
46 **/
47
48#ifndef lint
49static const char rcsid[] =
50  "$FreeBSD: src/usr.sbin/moused/moused.c,v 1.53 2001/08/09 18:12:07 dougb Exp $";
51#endif /* not lint */
52
53#include <ctype.h>
54#include <err.h>
55#include <errno.h>
56#include <fcntl.h>
57#include <limits.h>
58#include <stdio.h>
59#include <stdlib.h>
60#include <stdarg.h>
61#include <string.h>
62#include <ctype.h>
63#include <signal.h>
64#include <setjmp.h>
65#include <termios.h>
66#include <syslog.h>
67#include "mouse.h"
68#include <sys/ioctl.h>
69#include <dev/wscons/wsconsio.h>
70#include <sys/types.h>
71#include <sys/time.h>
72#include <sys/socket.h>
73#include <sys/un.h>
74#include <unistd.h>
75
76#define MAX_CLICKTHRESHOLD	2000	/* 2 seconds */
77#define MAX_BUTTON2TIMEOUT	2000	/* 2 seconds */
78#define DFLT_CLICKTHRESHOLD	 500	/* 0.5 second */
79#define DFLT_BUTTON2TIMEOUT	 100	/* 0.1 second */
80
81/* Abort 3-button emulation delay after this many movement events. */
82#define BUTTON2_MAXMOVE	3
83
84#define TRUE		1
85#define FALSE		0
86
87#define MOUSE_XAXIS	(-1)
88#define MOUSE_YAXIS	(-2)
89
90/* Logitech PS2++ protocol */
91#define MOUSE_PS2PLUS_CHECKBITS(b)	\
92			((((b[2] & 0x03) << 2) | 0x02) == (b[1] & 0x0f))
93#define MOUSE_PS2PLUS_PACKET_TYPE(b)	\
94			(((b[0] & 0x30) >> 2) | ((b[1] & 0x30) >> 4))
95
96#define	ChordMiddle	0x0001
97#define Emulate3Button	0x0002
98#define ClearDTR	0x0004
99#define ClearRTS	0x0008
100#define NoPnP		0x0010
101
102#define ID_NONE		0
103#define ID_PORT		1
104#define ID_IF		2
105#define ID_TYPE 	4
106#define ID_MODEL	8
107#define ID_ALL		(ID_PORT | ID_IF | ID_TYPE | ID_MODEL)
108
109#define debug(fmt,args...) \
110	if (debug&&nodaemon) warnx(fmt, ##args)
111
112#define logerr(e, fmt, args...) {				\
113	if (background) {					\
114	    syslog(LOG_DAEMON | LOG_ERR, fmt ": %m", ##args);	\
115	    exit(e);						\
116	} else							\
117	    err(e, fmt, ##args);				\
118}
119
120#define logerrx(e, fmt, args...) {				\
121	if (background) {					\
122	    syslog(LOG_DAEMON | LOG_ERR, fmt, ##args);		\
123	    exit(e);						\
124	} else							\
125	    errx(e, fmt, ##args);				\
126}
127
128#define logwarn(fmt, args...) {					\
129	if (background)						\
130	    syslog(LOG_DAEMON | LOG_WARNING, fmt ": %m", ##args); \
131	else							\
132	    warn(fmt, ##args);					\
133}
134
135#define logwarnx(fmt, args...) {				\
136	if (background)						\
137	    syslog(LOG_DAEMON | LOG_WARNING, fmt, ##args);	\
138	else							\
139	    warnx(fmt, ##args);					\
140}
141
142/* structures */
143
144/* symbol table entry */
145typedef struct {
146    char *name;
147    int val;
148    int val2;
149} symtab_t;
150
151/* serial PnP ID string */
152typedef struct {
153    int revision;	/* PnP revision, 100 for 1.00 */
154    char *eisaid;	/* EISA ID including mfr ID and product ID */
155    char *serial;	/* serial No, optional */
156    char *class;	/* device class, optional */
157    char *compat;	/* list of compatible drivers, optional */
158    char *description;	/* product description, optional */
159    int neisaid;	/* length of the above fields... */
160    int nserial;
161    int nclass;
162    int ncompat;
163    int ndescription;
164} pnpid_t;
165
166/* global variables */
167
168int	debug = 0;
169int	nodaemon = FALSE;
170int	background = FALSE;
171int	identify = ID_NONE;
172char	*pidfile = "/var/run/moused.pid";
173
174/* local variables */
175
176/* interface (the table must be ordered by MOUSE_IF_XXX in mouse.h) */
177static symtab_t rifs[] = {
178    { "serial",		MOUSE_IF_SERIAL },
179    { "bus",		MOUSE_IF_BUS },
180    { "inport",		MOUSE_IF_INPORT },
181    { "ps/2",		MOUSE_IF_PS2 },
182    { "sysmouse",	MOUSE_IF_SYSMOUSE },
183    { "usb",		MOUSE_IF_USB },
184    { NULL,		MOUSE_IF_UNKNOWN },
185};
186
187/* types (the table must be ordered by MOUSE_PROTO_XXX in mouse.h) */
188static char *rnames[] = {
189    "microsoft",
190    "mousesystems",
191    "logitech",
192    "mmseries",
193    "mouseman",
194    "busmouse",
195    "inportmouse",
196    "ps/2",
197    "mmhitab",
198    "glidepoint",
199    "intellimouse",
200    "thinkingmouse",
201    "sysmouse",
202    "x10mouseremote",
203    "kidspad",
204#if notyet
205    "mariqua",
206#endif
207    NULL
208};
209
210/* models */
211static symtab_t	rmodels[] = {
212    { "NetScroll",		MOUSE_MODEL_NETSCROLL },
213    { "NetMouse/NetScroll Optical", MOUSE_MODEL_NET },
214    { "GlidePoint",		MOUSE_MODEL_GLIDEPOINT },
215    { "ThinkingMouse",		MOUSE_MODEL_THINK },
216    { "IntelliMouse",		MOUSE_MODEL_INTELLI },
217    { "EasyScroll/SmartScroll",	MOUSE_MODEL_EASYSCROLL },
218    { "MouseMan+",		MOUSE_MODEL_MOUSEMANPLUS },
219    { "Kidspad",		MOUSE_MODEL_KIDSPAD },
220    { "VersaPad",		MOUSE_MODEL_VERSAPAD },
221    { "IntelliMouse Explorer",	MOUSE_MODEL_EXPLORER },
222    { "4D Mouse",		MOUSE_MODEL_4D },
223    { "4D+ Mouse",		MOUSE_MODEL_4DPLUS },
224    { "generic",		MOUSE_MODEL_GENERIC },
225    { NULL, 			MOUSE_MODEL_UNKNOWN },
226};
227
228/* PnP EISA/product IDs */
229static symtab_t pnpprod[] = {
230    /* Kensignton ThinkingMouse */
231    { "KML0001",	MOUSE_PROTO_THINK,	MOUSE_MODEL_THINK },
232    /* MS IntelliMouse */
233    { "MSH0001",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_INTELLI },
234    /* MS IntelliMouse TrackBall */
235    { "MSH0004",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_INTELLI },
236    /* Tremon Wheel Mouse MUSD */
237    { "HTK0001",        MOUSE_PROTO_INTELLI,    MOUSE_MODEL_INTELLI },
238    /* Genius PnP Mouse */
239    { "KYE0001",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
240    /* MouseSystems SmartScroll Mouse (OEM from Genius?) */
241    { "KYE0002",	MOUSE_PROTO_MS,		MOUSE_MODEL_EASYSCROLL },
242    /* Genius NetMouse */
243    { "KYE0003",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_NET },
244    /* Genius Kidspad, Easypad and other tablets */
245    { "KYE0005",	MOUSE_PROTO_KIDSPAD,	MOUSE_MODEL_KIDSPAD },
246    /* Genius EZScroll */
247    { "KYEEZ00",	MOUSE_PROTO_MS,		MOUSE_MODEL_EASYSCROLL },
248    /* Logitech Cordless MouseMan Wheel */
249    { "LGI8033",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_MOUSEMANPLUS },
250    /* Logitech MouseMan (new 4 button model) */
251    { "LGI800C",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_MOUSEMANPLUS },
252    /* Logitech MouseMan+ */
253    { "LGI8050",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_MOUSEMANPLUS },
254    /* Logitech FirstMouse+ */
255    { "LGI8051",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_MOUSEMANPLUS },
256    /* Logitech serial */
257    { "LGI8001",	MOUSE_PROTO_LOGIMOUSEMAN, MOUSE_MODEL_GENERIC },
258    /* A4 Tech 4D/4D+ Mouse */
259    { "A4W0005",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_4D },
260    /* 8D Scroll Mouse */
261    { "PEC9802",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_INTELLI },
262    /* Mitsumi Wireless Scroll Mouse */
263    { "MTM6401",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_INTELLI },
264
265    /* MS bus */
266    { "PNP0F00",	MOUSE_PROTO_BUS,	MOUSE_MODEL_GENERIC },
267    /* MS serial */
268    { "PNP0F01",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
269    /* MS InPort */
270    { "PNP0F02",	MOUSE_PROTO_INPORT,	MOUSE_MODEL_GENERIC },
271    /* MS PS/2 */
272    { "PNP0F03",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
273    /*
274     * EzScroll returns PNP0F04 in the compatible device field; but it
275     * doesn't look compatible... XXX
276     */
277    /* MouseSystems */
278    { "PNP0F04",	MOUSE_PROTO_MSC,	MOUSE_MODEL_GENERIC },
279    /* MouseSystems */
280    { "PNP0F05",	MOUSE_PROTO_MSC,	MOUSE_MODEL_GENERIC },
281#if notyet
282    /* Genius Mouse */
283    { "PNP0F06",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
284    /* Genius Mouse */
285    { "PNP0F07",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
286#endif
287    /* Logitech serial */
288    { "PNP0F08",	MOUSE_PROTO_LOGIMOUSEMAN, MOUSE_MODEL_GENERIC },
289    /* MS BallPoint serial */
290    { "PNP0F09",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
291    /* MS PnP serial */
292    { "PNP0F0A",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
293    /* MS PnP BallPoint serial */
294    { "PNP0F0B",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
295    /* MS serial comatible */
296    { "PNP0F0C",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
297    /* MS InPort comatible */
298    { "PNP0F0D",	MOUSE_PROTO_INPORT,	MOUSE_MODEL_GENERIC },
299    /* MS PS/2 comatible */
300    { "PNP0F0E",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
301    /* MS BallPoint comatible */
302    { "PNP0F0F",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
303#if notyet
304    /* TI QuickPort */
305    { "PNP0F10",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
306#endif
307    /* MS bus comatible */
308    { "PNP0F11",	MOUSE_PROTO_BUS,	MOUSE_MODEL_GENERIC },
309    /* Logitech PS/2 */
310    { "PNP0F12",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
311    /* PS/2 */
312    { "PNP0F13",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
313#if notyet
314    /* MS Kids Mouse */
315    { "PNP0F14",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
316#endif
317    /* Logitech bus */
318    { "PNP0F15",	MOUSE_PROTO_BUS,	MOUSE_MODEL_GENERIC },
319#if notyet
320    /* Logitech SWIFT */
321    { "PNP0F16",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
322#endif
323    /* Logitech serial compat */
324    { "PNP0F17",	MOUSE_PROTO_LOGIMOUSEMAN, MOUSE_MODEL_GENERIC },
325    /* Logitech bus compatible */
326    { "PNP0F18",	MOUSE_PROTO_BUS,	MOUSE_MODEL_GENERIC },
327    /* Logitech PS/2 compatible */
328    { "PNP0F19",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
329#if notyet
330    /* Logitech SWIFT compatible */
331    { "PNP0F1A",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
332    /* HP Omnibook */
333    { "PNP0F1B",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
334    /* Compaq LTE TrackBall PS/2 */
335    { "PNP0F1C",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
336    /* Compaq LTE TrackBall serial */
337    { "PNP0F1D",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
338    /* MS Kidts Trackball */
339    { "PNP0F1E",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
340#endif
341    /* Interlink VersaPad */
342    { "LNK0001",	MOUSE_PROTO_VERSAPAD,	MOUSE_MODEL_VERSAPAD },
343
344    { NULL,		MOUSE_PROTO_UNKNOWN,	MOUSE_MODEL_GENERIC },
345};
346
347/* the table must be ordered by MOUSE_PROTO_XXX in mouse.h */
348static unsigned short rodentcflags[] =
349{
350    (CS7	           | CREAD | CLOCAL | HUPCL ),	/* MicroSoft */
351    (CS8 | CSTOPB	   | CREAD | CLOCAL | HUPCL ),	/* MouseSystems */
352    (CS8 | CSTOPB	   | CREAD | CLOCAL | HUPCL ),	/* Logitech */
353    (CS8 | PARENB | PARODD | CREAD | CLOCAL | HUPCL ),	/* MMSeries */
354    (CS7		   | CREAD | CLOCAL | HUPCL ),	/* MouseMan */
355    0,							/* Bus */
356    0,							/* InPort */
357    0,							/* PS/2 */
358    (CS8		   | CREAD | CLOCAL | HUPCL ),	/* MM HitTablet */
359    (CS7	           | CREAD | CLOCAL | HUPCL ),	/* GlidePoint */
360    (CS7                   | CREAD | CLOCAL | HUPCL ),	/* IntelliMouse */
361    (CS7                   | CREAD | CLOCAL | HUPCL ),	/* Thinking Mouse */
362    (CS8 | CSTOPB	   | CREAD | CLOCAL | HUPCL ),	/* sysmouse */
363    (CS7	           | CREAD | CLOCAL | HUPCL ),	/* X10 MouseRemote */
364    (CS8 | PARENB | PARODD | CREAD | CLOCAL | HUPCL ),	/* kidspad etc. */
365    (CS8		   | CREAD | CLOCAL | HUPCL ),	/* VersaPad */
366#if notyet
367    (CS8 | CSTOPB	   | CREAD | CLOCAL | HUPCL ),	/* Mariqua */
368#endif
369};
370
371static struct rodentparam {
372    int flags;
373    char *portname;		/* /dev/XXX */
374    int rtype;			/* MOUSE_PROTO_XXX */
375    int level;			/* operation level: 0 or greater */
376    int baudrate;
377    int rate;			/* report rate */
378    int resolution;		/* MOUSE_RES_XXX or a positive number */
379    int zmap[4];		/* MOUSE_{X|Y}AXIS or a button number */
380    int wmode;			/* wheel mode button number */
381    int mfd;			/* mouse file descriptor */
382    int cfd;			/* /dev/wsmousectl file descriptor */
383    int mremsfd;		/* mouse remote server file descriptor */
384    int mremcfd;		/* mouse remote client file descriptor */
385    long clickthreshold;	/* double click speed in msec */
386    long button2timeout;	/* 3 button emulation timeout */
387    mousehw_t hw;		/* mouse device hardware information */
388    mousemode_t mode;		/* protocol information */
389    float accelx;		/* Acceleration in the X axis */
390    float accely;		/* Acceleration in the Y axis */
391} rodent = {
392    flags : 0,
393    portname : NULL,
394    rtype : MOUSE_PROTO_UNKNOWN,
395    level : -1,
396    baudrate : 1200,
397    rate : 0,
398    resolution : MOUSE_RES_UNKNOWN,
399    zmap: { 0, 0, 0, 0 },
400    wmode: 0,
401    mfd : -1,
402    cfd : -1,
403    mremsfd : -1,
404    mremcfd : -1,
405    clickthreshold : DFLT_CLICKTHRESHOLD,
406    button2timeout : DFLT_BUTTON2TIMEOUT,
407    accelx : 1.0,
408    accely : 1.0,
409};
410
411/* button status */
412struct button_state {
413    int count;		/* 0: up, 1: single click, 2: double click,... */
414    struct timeval tv;	/* timestamp on the last button event */
415};
416static struct button_state	bstate[MOUSE_MAXBUTTON]; /* button state */
417static struct button_state	*mstate[MOUSE_MAXBUTTON];/* mapped button st.*/
418static struct button_state	zstate[4];		 /* Z/W axis state */
419
420/* state machine for 3 button emulation */
421
422#define S0	0	/* start */
423#define S1	1	/* button 1 delayed down */
424#define S2	2	/* button 3 delayed down */
425#define S3	3	/* both buttons down -> button 2 down */
426#define S4	4	/* button 1 delayed up */
427#define S5	5	/* button 1 down */
428#define S6	6	/* button 3 down */
429#define S7	7	/* both buttons down */
430#define S8	8	/* button 3 delayed up */
431#define S9	9	/* button 1 or 3 up after S3 */
432
433#define A(b1, b3)	(((b1) ? 2 : 0) | ((b3) ? 1 : 0))
434#define A_TIMEOUT	4
435#define S_DELAYED(st)	(states[st].s[A_TIMEOUT] != (st))
436
437static struct {
438    int s[A_TIMEOUT + 1];
439    int buttons;
440    int mask;
441    int timeout;
442} states[10] = {
443    /* S0 */
444    { { S0, S2, S1, S3, S0 }, 0, ~(MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN), FALSE },
445    /* S1 */
446    { { S4, S2, S1, S3, S5 }, 0, ~MOUSE_BUTTON1DOWN, FALSE },
447    /* S2 */
448    { { S8, S2, S1, S3, S6 }, 0, ~MOUSE_BUTTON3DOWN, FALSE },
449    /* S3 */
450    { { S0, S9, S9, S3, S3 }, MOUSE_BUTTON2DOWN, ~0, FALSE },
451    /* S4 */
452    { { S0, S2, S1, S3, S0 }, MOUSE_BUTTON1DOWN, ~0, TRUE },
453    /* S5 */
454    { { S0, S2, S5, S7, S5 }, MOUSE_BUTTON1DOWN, ~0, FALSE },
455    /* S6 */
456    { { S0, S6, S1, S7, S6 }, MOUSE_BUTTON3DOWN, ~0, FALSE },
457    /* S7 */
458    { { S0, S6, S5, S7, S7 }, MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN, ~0, FALSE },
459    /* S8 */
460    { { S0, S2, S1, S3, S0 }, MOUSE_BUTTON3DOWN, ~0, TRUE },
461    /* S9 */
462    { { S0, S9, S9, S3, S9 }, 0, ~(MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN), FALSE },
463};
464static int		mouse_button_state;
465static struct timeval	mouse_button_state_tv;
466static int		mouse_move_delayed;
467
468static jmp_buf env;
469
470/* function prototypes */
471
472static void	moused(char *);
473static void	hup(int sig);
474static void	cleanup(int sig);
475static void	usage(void);
476
477static int	r_identify(void);
478static char	*r_if(int type);
479static char	*r_name(int type);
480static char	*r_model(int model);
481static void	r_init(void);
482static int	r_protocol(u_char b, mousestatus_t *act);
483static int	r_statetrans(mousestatus_t *a1, mousestatus_t *a2, int trans);
484static int	r_installmap(char *arg);
485static void	r_map(mousestatus_t *act1, mousestatus_t *act2);
486static void	r_timestamp(mousestatus_t *act);
487static int	r_timeout(void);
488static void	setmousespeed(int old, int new, unsigned cflag);
489
490static int	pnpwakeup1(void);
491static int	pnpwakeup2(void);
492static int	pnpgets(char *buf);
493static int	pnpparse(pnpid_t *id, char *buf, int len);
494static symtab_t	*pnpproto(pnpid_t *id);
495
496static symtab_t	*gettoken(symtab_t *tab, char *s, int len);
497static char	*gettokenname(symtab_t *tab, int val);
498
499static void wsev(int ty, int val);
500
501static int kidspad(u_char rxc, mousestatus_t *act);
502
503int
504main(int argc, char *argv[])
505{
506    int c;
507    int	i;
508    int	j;
509    char *ctldev = "/dev/wsmuxctl0";
510
511    for (i = 0; i < MOUSE_MAXBUTTON; ++i)
512	mstate[i] = &bstate[i];
513
514    while((c = getopt(argc,argv,"3DE:F:I:PRS:W:a:cdfhi:l:m:p:r:st:w:z:")) != -1)
515	switch(c) {
516
517	case 'W':
518	    ctldev = optarg;
519	    break;
520
521	case '3':
522	    rodent.flags |= Emulate3Button;
523	    break;
524
525	case 'E':
526	    rodent.button2timeout = atoi(optarg);
527	    if ((rodent.button2timeout < 0) ||
528	        (rodent.button2timeout > MAX_BUTTON2TIMEOUT)) {
529	        warnx("invalid argument `%s'", optarg);
530	        usage();
531	    }
532	    break;
533
534	case 'a':
535	    i = sscanf(optarg, "%f,%f", &rodent.accelx, &rodent.accely);
536	    if (i == 0) {
537		warnx("invalid acceleration argument '%s'", optarg);
538		usage();
539	    }
540
541	    if (i == 1)
542		rodent.accely = rodent.accelx;
543
544	    break;
545
546	case 'c':
547	    rodent.flags |= ChordMiddle;
548	    break;
549
550	case 'd':
551	    ++debug;
552	    break;
553
554	case 'f':
555	    nodaemon = TRUE;
556	    break;
557
558	case 'i':
559	    if (strcmp(optarg, "all") == 0)
560	        identify = ID_ALL;
561	    else if (strcmp(optarg, "port") == 0)
562	        identify = ID_PORT;
563	    else if (strcmp(optarg, "if") == 0)
564	        identify = ID_IF;
565	    else if (strcmp(optarg, "type") == 0)
566	        identify = ID_TYPE;
567	    else if (strcmp(optarg, "model") == 0)
568	        identify = ID_MODEL;
569	    else {
570	        warnx("invalid argument `%s'", optarg);
571	        usage();
572	    }
573	    nodaemon = TRUE;
574	    break;
575
576	case 'l':
577	    rodent.level = atoi(optarg);
578	    if ((rodent.level < 0) || (rodent.level > 4)) {
579	        warnx("invalid argument `%s'", optarg);
580	        usage();
581	    }
582	    break;
583
584	case 'm':
585	    if (!r_installmap(optarg)) {
586	        warnx("invalid argument `%s'", optarg);
587	        usage();
588	    }
589	    break;
590
591	case 'p':
592	    rodent.portname = optarg;
593	    break;
594
595	case 'r':
596	    if (strcmp(optarg, "high") == 0)
597	        rodent.resolution = MOUSE_RES_HIGH;
598	    else if (strcmp(optarg, "medium-high") == 0)
599	        rodent.resolution = MOUSE_RES_HIGH;
600	    else if (strcmp(optarg, "medium-low") == 0)
601	        rodent.resolution = MOUSE_RES_MEDIUMLOW;
602	    else if (strcmp(optarg, "low") == 0)
603	        rodent.resolution = MOUSE_RES_LOW;
604	    else if (strcmp(optarg, "default") == 0)
605	        rodent.resolution = MOUSE_RES_DEFAULT;
606	    else {
607	        rodent.resolution = atoi(optarg);
608	        if (rodent.resolution <= 0) {
609	            warnx("invalid argument `%s'", optarg);
610	            usage();
611	        }
612	    }
613	    break;
614
615	case 's':
616	    rodent.baudrate = 9600;
617	    break;
618
619	case 'w':
620	    i = atoi(optarg);
621	    if ((i <= 0) || (i > MOUSE_MAXBUTTON)) {
622		warnx("invalid argument `%s'", optarg);
623		usage();
624	    }
625	    rodent.wmode = 1 << (i - 1);
626	    break;
627
628	case 'z':
629	    if (strcmp(optarg, "x") == 0)
630		rodent.zmap[0] = MOUSE_XAXIS;
631	    else if (strcmp(optarg, "y") == 0)
632		rodent.zmap[0] = MOUSE_YAXIS;
633            else {
634		i = atoi(optarg);
635		/*
636		 * Use button i for negative Z axis movement and
637		 * button (i + 1) for positive Z axis movement.
638		 */
639		if ((i <= 0) || (i > MOUSE_MAXBUTTON - 1)) {
640	            warnx("invalid argument `%s'", optarg);
641	            usage();
642		}
643		rodent.zmap[0] = i;
644		rodent.zmap[1] = i + 1;
645		debug("optind: %d, optarg: '%s'", optind, optarg);
646		for (j = 1; j < 4; ++j) {
647		    if ((optind >= argc) || !isdigit(*argv[optind]))
648			break;
649		    i = atoi(argv[optind]);
650		    if ((i <= 0) || (i > MOUSE_MAXBUTTON - 1)) {
651			warnx("invalid argument `%s'", argv[optind]);
652			usage();
653		    }
654		    rodent.zmap[j] = i;
655		    ++optind;
656		}
657		if ((rodent.zmap[2] != 0) && (rodent.zmap[3] == 0))
658		    rodent.zmap[3] = rodent.zmap[2] + 1;
659	    }
660	    break;
661
662	case 'C':
663	    rodent.clickthreshold = atoi(optarg);
664	    if ((rodent.clickthreshold < 0) ||
665	        (rodent.clickthreshold > MAX_CLICKTHRESHOLD)) {
666	        warnx("invalid argument `%s'", optarg);
667	        usage();
668	    }
669	    break;
670
671	case 'D':
672	    rodent.flags |= ClearDTR;
673	    break;
674
675	case 'F':
676	    rodent.rate = atoi(optarg);
677	    if (rodent.rate <= 0) {
678	        warnx("invalid argument `%s'", optarg);
679	        usage();
680	    }
681	    break;
682
683	case 'I':
684	    pidfile = optarg;
685	    break;
686
687	case 'P':
688	    rodent.flags |= NoPnP;
689	    break;
690
691	case 'R':
692	    rodent.flags |= ClearRTS;
693	    break;
694
695	case 'S':
696	    rodent.baudrate = atoi(optarg);
697	    if (rodent.baudrate <= 0) {
698	        warnx("invalid argument `%s'", optarg);
699	        usage();
700	    }
701	    debug("rodent baudrate %d", rodent.baudrate);
702	    break;
703
704	case 't':
705	    if (strcmp(optarg, "auto") == 0) {
706		rodent.rtype = MOUSE_PROTO_UNKNOWN;
707		rodent.flags &= ~NoPnP;
708		rodent.level = -1;
709		break;
710	    }
711	    for (i = 0; rnames[i]; i++)
712		if (strcmp(optarg, rnames[i]) == 0) {
713		    rodent.rtype = i;
714		    rodent.flags |= NoPnP;
715		    rodent.level = (i == MOUSE_PROTO_SYSMOUSE) ? 1 : 0;
716		    break;
717		}
718	    if (rnames[i])
719		break;
720	    warnx("no such mouse type `%s'", optarg);
721	    usage();
722
723	case 'h':
724	case '?':
725	default:
726	    usage();
727	}
728
729    /* fix Z axis mapping */
730    for (i = 0; i < 4; ++i) {
731	if (rodent.zmap[i] > 0) {
732	    for (j = 0; j < MOUSE_MAXBUTTON; ++j) {
733		if (mstate[j] == &bstate[rodent.zmap[i] - 1])
734		    mstate[j] = &zstate[i];
735	    }
736	    rodent.zmap[i] = 1 << (rodent.zmap[i] - 1);
737	}
738    }
739
740    /* the default port name */
741    switch(rodent.rtype) {
742
743    case MOUSE_PROTO_INPORT:
744        /* INPORT and BUS are the same... */
745	rodent.rtype = MOUSE_PROTO_BUS;
746	/* FALL THROUGH */
747    case MOUSE_PROTO_BUS:
748	if (!rodent.portname)
749	    rodent.portname = "/dev/mse0";
750	break;
751
752    case MOUSE_PROTO_PS2:
753	if (!rodent.portname)
754	    rodent.portname = "/dev/psm0";
755	break;
756
757    default:
758	if (rodent.portname)
759	    break;
760	warnx("no port name specified");
761	usage();
762    }
763
764    for (;;) {
765	if (setjmp(env) == 0) {
766	    signal(SIGHUP, hup);
767	    signal(SIGINT , cleanup);
768	    signal(SIGQUIT, cleanup);
769	    signal(SIGTERM, cleanup);
770            if ((rodent.mfd = open(rodent.portname, O_RDWR | O_NONBLOCK, 0))
771		== -1)
772	        logerr(1, "unable to open %s", rodent.portname);
773            if (r_identify() == MOUSE_PROTO_UNKNOWN) {
774	        logwarnx("cannot determine mouse type on %s", rodent.portname);
775	        close(rodent.mfd);
776	        rodent.mfd = -1;
777            }
778
779	    /* print some information */
780            if (identify != ID_NONE) {
781		if (identify == ID_ALL)
782                    printf("%s %s %s %s\n",
783		        rodent.portname, r_if(rodent.hw.iftype),
784		        r_name(rodent.rtype), r_model(rodent.hw.model));
785		else if (identify & ID_PORT)
786		    printf("%s\n", rodent.portname);
787		else if (identify & ID_IF)
788		    printf("%s\n", r_if(rodent.hw.iftype));
789		else if (identify & ID_TYPE)
790		    printf("%s\n", r_name(rodent.rtype));
791		else if (identify & ID_MODEL)
792		    printf("%s\n", r_model(rodent.hw.model));
793		exit(0);
794	    } else {
795                debug("port: %s  interface: %s  type: %s  model: %s",
796		    rodent.portname, r_if(rodent.hw.iftype),
797		    r_name(rodent.rtype), r_model(rodent.hw.model));
798	    }
799
800	    if (rodent.mfd == -1) {
801	        /*
802	         * We cannot continue because of error.  Exit if the
803		 * program has not become a daemon.  Otherwise, block
804		 * until the the user corrects the problem and issues SIGHUP.
805	         */
806	        if (!background)
807		    exit(1);
808	        sigpause(0);
809	    }
810
811            r_init();			/* call init function */
812	    moused(ctldev);
813	}
814
815	if (rodent.mfd != -1)
816	    close(rodent.mfd);
817	if (rodent.cfd != -1)
818	    close(rodent.cfd);
819	rodent.mfd = rodent.cfd = -1;
820    }
821    /* NOT REACHED */
822
823    exit(0);
824}
825
826static void
827wsev(int ty, int val)
828{
829    struct wscons_event ev;
830
831    ev.type = ty;
832    ev.value = val;
833    if (debug)
834	printf("wsev: type=%d value=%d\n", ty, val);
835    if (ioctl(rodent.cfd, WSMUXIO_INJECTEVENT, &ev) < 0)
836	logwarn("WSMUXIO_INJECTEVENT", 0);
837}
838
839static void
840moused(char *wsm)
841{
842    mousestatus_t action0;		/* original mouse action */
843    mousestatus_t action;		/* interrim buffer */
844    mousestatus_t action2;		/* mapped action */
845    int lastbutton = 0;
846    int button;
847    struct timeval timeout;
848    fd_set fds;
849    u_char b;
850    FILE *fp;
851    int flags;
852    int c;
853    int i;
854
855    if ((rodent.cfd = open(wsm, O_WRONLY, 0)) == -1)
856	logerr(1, "cannot open %s", wsm);
857
858    if (!nodaemon && !background) {
859	if (daemon(0, 0)) {
860	    logerr(1, "failed to become a daemon", 0);
861	} else {
862	    background = TRUE;
863	    fp = fopen(pidfile, "w");
864	    if (fp != NULL) {
865		fprintf(fp, "%d\n", getpid());
866		fclose(fp);
867	    }
868	}
869    }
870
871    /* clear mouse data */
872    bzero(&action0, sizeof(action0));
873    bzero(&action, sizeof(action));
874    bzero(&action2, sizeof(action2));
875    mouse_button_state = S0;
876    gettimeofday(&mouse_button_state_tv, NULL);
877    mouse_move_delayed = 0;
878    for (i = 0; i < MOUSE_MAXBUTTON; ++i) {
879	bstate[i].count = 0;
880	bstate[i].tv = mouse_button_state_tv;
881    }
882    for (i = 0; i < sizeof(zstate)/sizeof(zstate[0]); ++i) {
883	zstate[i].count = 0;
884	zstate[i].tv = mouse_button_state_tv;
885    }
886
887    /* process mouse data */
888    timeout.tv_sec = 0;
889    timeout.tv_usec = 20000;		/* 20 msec */
890    for (;;) {
891
892	FD_ZERO(&fds);
893	FD_SET(rodent.mfd, &fds);
894	if (rodent.mremsfd >= 0)
895	    FD_SET(rodent.mremsfd, &fds);
896	if (rodent.mremcfd >= 0)
897	    FD_SET(rodent.mremcfd, &fds);
898
899	c = select(FD_SETSIZE, &fds, NULL, NULL,
900		   (rodent.flags & Emulate3Button) ? &timeout : NULL);
901	if (c < 0) {                    /* error */
902	    logwarn("failed to read from mouse", 0);
903	    continue;
904	} else if (c == 0) {            /* timeout */
905	    /* assert(rodent.flags & Emulate3Button) */
906	    action0.button = action0.obutton;
907	    action0.dx = action0.dy = action0.dz = 0;
908	    action0.flags = flags = 0;
909	    if (r_timeout() && r_statetrans(&action0, &action, A_TIMEOUT)) {
910		if (debug > 2)
911		    debug("flags:%08x buttons:%08x obuttons:%08x",
912			  action.flags, action.button, action.obutton);
913	    } else {
914		action0.obutton = action0.button;
915		continue;
916	    }
917	} else {
918#if 0
919	    /*  MouseRemote client connect/disconnect  */
920	    if ((rodent.mremsfd >= 0) && FD_ISSET(rodent.mremsfd, &fds)) {
921		mremote_clientchg(TRUE);
922		continue;
923	    }
924	    if ((rodent.mremcfd >= 0) && FD_ISSET(rodent.mremcfd, &fds)) {
925		mremote_clientchg(FALSE);
926		continue;
927	    }
928#endif
929	    /* mouse movement */
930	    if (read(rodent.mfd, &b, 1) == -1) {
931		if (errno == EWOULDBLOCK)
932		    continue;
933		else
934		    return;
935	    }
936	    if ((flags = r_protocol(b, &action0)) == 0)
937		continue;
938	    r_timestamp(&action0);
939	    r_statetrans(&action0, &action,
940	    		 A(action0.button & MOUSE_BUTTON1DOWN,
941	    		   action0.button & MOUSE_BUTTON3DOWN));
942	    debug("flags:%08x buttons:%08x obuttons:%08x", action.flags,
943		  action.button, action.obutton);
944	}
945	action0.obutton = action0.button;
946	flags &= MOUSE_POSCHANGED;
947	flags |= action.obutton ^ action.button;
948	action.flags = flags;
949
950	if (flags) {			/* handler detected action */
951	    r_map(&action, &action2);
952	    debug("activity : buttons 0x%08x  dx %d  dy %d  dz %d",
953		action2.button, action2.dx, action2.dy, action2.dz);
954
955            if (debug > 1)
956	        printf("buttons=%x x=%d y=%d z=%d\n", action2.button,
957		    (int)(action2.dx * rodent.accelx),
958		    (int)(action2.dy * rodent.accely),
959		    (int)action2.dz);
960	    if (action2.dx != 0 && debug < 2)
961		wsev(WSCONS_EVENT_MOUSE_DELTA_X, action2.dx * rodent.accelx);
962	    if (action2.dy != 0 && debug < 2)
963		wsev(WSCONS_EVENT_MOUSE_DELTA_Y, -action2.dy * rodent.accely);
964	    if (action2.dz != 0 && debug < 2)
965		wsev(WSCONS_EVENT_MOUSE_DELTA_Z, action2.dz);
966	    button = lastbutton ^ action2.button;
967	    lastbutton = action2.button;
968	    printf("diff=%x buts=%x\n", button, lastbutton);
969	    for (i = 0; i < 3; i ++) {
970		if ((button & (1<<i)) && debug < 2) {
971		    wsev(lastbutton & (1<<i) ? WSCONS_EVENT_MOUSE_DOWN :
972			 WSCONS_EVENT_MOUSE_UP, i);
973		}
974	    }
975
976            /*
977	     * If the Z axis movement is mapped to a imaginary physical
978	     * button, we need to cook up a corresponding button `up' event
979	     * after sending a button `down' event.
980	     */
981            if ((rodent.zmap[0] > 0) && (action.dz != 0)) {
982		action.obutton = action.button;
983		action.dx = action.dy = action.dz = 0;
984	        r_map(&action, &action2);
985	        debug("activity : buttons 0x%08x  dx %d  dy %d  dz %d",
986		    action2.button, action2.dx, action2.dy, action2.dz);
987
988		/* XXX emplement this */
989#if 0
990	        if (extioctl) {
991	            r_click(&action2);
992	        } else {
993	            mouse.operation = MOUSE_ACTION;
994	            mouse.u.data.buttons = action2.button;
995		    mouse.u.data.x = mouse.u.data.y = mouse.u.data.z = 0;
996		    if (debug < 2)
997	                ioctl(rodent.cfd, CONS_MOUSECTL, &mouse);
998	        }
999#endif
1000	    }
1001	}
1002    }
1003    /* NOT REACHED */
1004}
1005
1006static void
1007hup(int sig)
1008{
1009    longjmp(env, 1);
1010}
1011
1012static void
1013cleanup(int sig)
1014{
1015    if (rodent.rtype == MOUSE_PROTO_X10MOUSEREM)
1016	unlink(_PATH_MOUSEREMOTE);
1017    exit(0);
1018}
1019
1020/**
1021 ** usage
1022 **
1023 ** Complain, and free the CPU for more worthy tasks
1024 **/
1025static void
1026usage(void)
1027{
1028    fprintf(stderr, "%s\n%s\n%s\n%s\n",
1029	"usage: moused [-DRcdfs] [-I file] [-F rate] [-r resolution] [-S baudrate]",
1030	"              [-a X[,Y]] [-m N=M] [-w N] [-z N]",
1031	"              [-t <mousetype>] [-3 [-E timeout]] -p <port>",
1032	"       moused [-d] -i <port|if|type|model|all> -p <port>");
1033    exit(1);
1034}
1035
1036/**
1037 ** Mouse interface code, courtesy of XFree86 3.1.2.
1038 **
1039 ** Note: Various bits have been trimmed, and in my shortsighted enthusiasm
1040 ** to clean, reformat and rationalise naming, it's quite possible that
1041 ** some things in here have been broken.
1042 **
1043 ** I hope not 8)
1044 **
1045 ** The following code is derived from a module marked :
1046 **/
1047
1048/* $XConsortium: xf86_Mouse.c,v 1.2 94/10/12 20:33:21 kaleb Exp $ */
1049/* $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86_Mouse.c,v 3.2 1995/01/28
1050 17:03:40 dawes Exp $ */
1051/*
1052 *
1053 * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.
1054 * Copyright 1993 by David Dawes <dawes@physics.su.oz.au>
1055 *
1056 * Permission to use, copy, modify, distribute, and sell this software and its
1057 * documentation for any purpose is hereby granted without fee, provided that
1058 * the above copyright notice appear in all copies and that both that
1059 * copyright notice and this permission notice appear in supporting
1060 * documentation, and that the names of Thomas Roell and David Dawes not be
1061 * used in advertising or publicity pertaining to distribution of the
1062 * software without specific, written prior permission.  Thomas Roell
1063 * and David Dawes makes no representations about the suitability of this
1064 * software for any purpose.  It is provided "as is" without express or
1065 * implied warranty.
1066 *
1067 * THOMAS ROELL AND DAVID DAWES DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
1068 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
1069 * FITNESS, IN NO EVENT SHALL THOMAS ROELL OR DAVID DAWES BE LIABLE FOR ANY
1070 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
1071 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
1072 * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
1073 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1074 *
1075 */
1076
1077/**
1078 ** GlidePoint support from XFree86 3.2.
1079 ** Derived from the module:
1080 **/
1081
1082/* $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86_Mouse.c,v 3.19 1996/10/16 14:40:51 dawes Exp $ */
1083/* $XConsortium: xf86_Mouse.c /main/10 1996/01/30 15:16:12 kaleb $ */
1084
1085/* the following table must be ordered by MOUSE_PROTO_XXX in mouse.h */
1086static unsigned char proto[][7] = {
1087    /*  hd_mask hd_id   dp_mask dp_id   bytes b4_mask b4_id */
1088    { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x23,  0x00 }, /* MicroSoft */
1089    {	0xf8,	0x80,	0x00,	0x00,	5,    0x00,  0xff }, /* MouseSystems */
1090    {	0xe0,	0x80,	0x80,	0x00,	3,    0x00,  0xff }, /* Logitech */
1091    {	0xe0,	0x80,	0x80,	0x00,	3,    0x00,  0xff }, /* MMSeries */
1092    { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x33,  0x00 }, /* MouseMan */
1093    {	0xf8,	0x80,	0x00,	0x00,	5,    0x00,  0xff }, /* Bus */
1094    {	0xf8,	0x80,	0x00,	0x00,	5,    0x00,  0xff }, /* InPort */
1095    {	0xc0,	0x00,	0x00,	0x00,	3,    0x00,  0xff }, /* PS/2 mouse */
1096    {	0xe0,	0x80,	0x80,	0x00,	3,    0x00,  0xff }, /* MM HitTablet */
1097    { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x33,  0x00 }, /* GlidePoint */
1098    { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x3f,  0x00 }, /* IntelliMouse */
1099    { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x33,  0x00 }, /* ThinkingMouse */
1100    {	0xf8,	0x80,	0x00,	0x00,	5,    0x00,  0xff }, /* sysmouse */
1101    { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x23,  0x00 }, /* X10 MouseRem */
1102    {	0x80,	0x80,	0x00,	0x00,	5,    0x00,  0xff }, /* KIDSPAD */
1103    {	0xc3,	0xc0,	0x00,	0x00,	6,    0x00,  0xff }, /* VersaPad */
1104#if notyet
1105    {	0xf8,	0x80,	0x00,	0x00,	5,   ~0x2f,  0x10 }, /* Mariqua */
1106#endif
1107};
1108static unsigned char cur_proto[7];
1109
1110static int
1111r_identify(void)
1112{
1113    char pnpbuf[256];	/* PnP identifier string may be up to 256 bytes long */
1114    pnpid_t pnpid;
1115    symtab_t *t;
1116    int len;
1117
1118    rodent.level = 0;
1119
1120    if (rodent.rtype != MOUSE_PROTO_UNKNOWN)
1121        bcopy(proto[rodent.rtype], cur_proto, sizeof(cur_proto));
1122    rodent.mode.protocol = MOUSE_PROTO_UNKNOWN;
1123    rodent.mode.rate = -1;
1124    rodent.mode.resolution = MOUSE_RES_UNKNOWN;
1125    rodent.mode.accelfactor = 0;
1126    rodent.mode.level = 0;
1127
1128    /* maybe this is an PnP mouse... */
1129    if (rodent.mode.protocol == MOUSE_PROTO_UNKNOWN) {
1130
1131        if (rodent.flags & NoPnP)
1132            return rodent.rtype;
1133	if (((len = pnpgets(pnpbuf)) <= 0) || !pnpparse(&pnpid, pnpbuf, len))
1134            return rodent.rtype;
1135
1136        debug("PnP serial mouse: '%*.*s' '%*.*s' '%*.*s'",
1137	    pnpid.neisaid, pnpid.neisaid, pnpid.eisaid,
1138	    pnpid.ncompat, pnpid.ncompat, pnpid.compat,
1139	    pnpid.ndescription, pnpid.ndescription, pnpid.description);
1140
1141	/* we have a valid PnP serial device ID */
1142        rodent.hw.iftype = MOUSE_IF_SERIAL;
1143	t = pnpproto(&pnpid);
1144	if (t != NULL) {
1145            rodent.mode.protocol = t->val;
1146            rodent.hw.model = t->val2;
1147	} else {
1148            rodent.mode.protocol = MOUSE_PROTO_UNKNOWN;
1149	}
1150	if (rodent.mode.protocol == MOUSE_PROTO_INPORT)
1151	    rodent.mode.protocol = MOUSE_PROTO_BUS;
1152
1153        /* make final adjustment */
1154	if (rodent.mode.protocol != MOUSE_PROTO_UNKNOWN) {
1155	    if (rodent.mode.protocol != rodent.rtype) {
1156		/* Hmm, the device doesn't agree with the user... */
1157                if (rodent.rtype != MOUSE_PROTO_UNKNOWN)
1158	            logwarnx("mouse type mismatch (%s != %s), %s is assumed",
1159		        r_name(rodent.mode.protocol), r_name(rodent.rtype),
1160		        r_name(rodent.mode.protocol));
1161	        rodent.rtype = rodent.mode.protocol;
1162                bcopy(proto[rodent.rtype], cur_proto, sizeof(cur_proto));
1163	    }
1164	}
1165    }
1166
1167    debug("proto params: %02x %02x %02x %02x %d %02x %02x",
1168	cur_proto[0], cur_proto[1], cur_proto[2], cur_proto[3],
1169	cur_proto[4], cur_proto[5], cur_proto[6]);
1170
1171    return rodent.rtype;
1172}
1173
1174static char *
1175r_if(int iftype)
1176{
1177    char *s;
1178
1179    s = gettokenname(rifs, iftype);
1180    return (s == NULL) ? "unknown" : s;
1181}
1182
1183static char *
1184r_name(int type)
1185{
1186    return ((type == MOUSE_PROTO_UNKNOWN)
1187	|| (type > sizeof(rnames)/sizeof(rnames[0]) - 1))
1188	? "unknown" : rnames[type];
1189}
1190
1191static char *
1192r_model(int model)
1193{
1194    char *s;
1195
1196    s = gettokenname(rmodels, model);
1197    return (s == NULL) ? "unknown" : s;
1198}
1199
1200static void
1201r_init(void)
1202{
1203    unsigned char buf[16];	/* scrach buffer */
1204    fd_set fds;
1205    char *s;
1206    char c;
1207    int i;
1208
1209    /**
1210     ** This comment is a little out of context here, but it contains
1211     ** some useful information...
1212     ********************************************************************
1213     **
1214     ** The following lines take care of the Logitech MouseMan protocols.
1215     **
1216     ** NOTE: There are different versions of both MouseMan and TrackMan!
1217     **       Hence I add another protocol P_LOGIMAN, which the user can
1218     **       specify as MouseMan in his XF86Config file. This entry was
1219     **       formerly handled as a special case of P_MS. However, people
1220     **       who don't have the middle button problem, can still specify
1221     **       Microsoft and use P_MS.
1222     **
1223     ** By default, these mice should use a 3 byte Microsoft protocol
1224     ** plus a 4th byte for the middle button. However, the mouse might
1225     ** have switched to a different protocol before we use it, so I send
1226     ** the proper sequence just in case.
1227     **
1228     ** NOTE: - all commands to (at least the European) MouseMan have to
1229     **         be sent at 1200 Baud.
1230     **       - each command starts with a '*'.
1231     **       - whenever the MouseMan receives a '*', it will switch back
1232     **	 to 1200 Baud. Hence I have to select the desired protocol
1233     **	 first, then select the baud rate.
1234     **
1235     ** The protocols supported by the (European) MouseMan are:
1236     **   -  5 byte packed binary protocol, as with the Mouse Systems
1237     **      mouse. Selected by sequence "*U".
1238     **   -  2 button 3 byte MicroSoft compatible protocol. Selected
1239     **      by sequence "*V".
1240     **   -  3 button 3+1 byte MicroSoft compatible protocol (default).
1241     **      Selected by sequence "*X".
1242     **
1243     ** The following baud rates are supported:
1244     **   -  1200 Baud (default). Selected by sequence "*n".
1245     **   -  9600 Baud. Selected by sequence "*q".
1246     **
1247     ** Selecting a sample rate is no longer supported with the MouseMan!
1248     ** Some additional lines in xf86Config.c take care of ill configured
1249     ** baud rates and sample rates. (The user will get an error.)
1250     */
1251
1252    switch (rodent.rtype) {
1253
1254    case MOUSE_PROTO_LOGI:
1255	/*
1256	 * The baud rate selection command must be sent at the current
1257	 * baud rate; try all likely settings
1258	 */
1259	setmousespeed(9600, rodent.baudrate, rodentcflags[rodent.rtype]);
1260	setmousespeed(4800, rodent.baudrate, rodentcflags[rodent.rtype]);
1261	setmousespeed(2400, rodent.baudrate, rodentcflags[rodent.rtype]);
1262	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1263	/* select MM series data format */
1264	write(rodent.mfd, "S", 1);
1265	setmousespeed(rodent.baudrate, rodent.baudrate,
1266		      rodentcflags[MOUSE_PROTO_MM]);
1267	/* select report rate/frequency */
1268	if      (rodent.rate <= 0)   write(rodent.mfd, "O", 1);
1269	else if (rodent.rate <= 15)  write(rodent.mfd, "J", 1);
1270	else if (rodent.rate <= 27)  write(rodent.mfd, "K", 1);
1271	else if (rodent.rate <= 42)  write(rodent.mfd, "L", 1);
1272	else if (rodent.rate <= 60)  write(rodent.mfd, "R", 1);
1273	else if (rodent.rate <= 85)  write(rodent.mfd, "M", 1);
1274	else if (rodent.rate <= 125) write(rodent.mfd, "Q", 1);
1275	else			     write(rodent.mfd, "N", 1);
1276	break;
1277
1278    case MOUSE_PROTO_LOGIMOUSEMAN:
1279	/* The command must always be sent at 1200 baud */
1280	setmousespeed(1200, 1200, rodentcflags[rodent.rtype]);
1281	write(rodent.mfd, "*X", 2);
1282	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1283	break;
1284
1285    case MOUSE_PROTO_HITTAB:
1286	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1287
1288	/*
1289	 * Initialize Hitachi PUMA Plus - Model 1212E to desired settings.
1290	 * The tablet must be configured to be in MM mode, NO parity,
1291	 * Binary Format.  xf86Info.sampleRate controls the sensativity
1292	 * of the tablet.  We only use this tablet for it's 4-button puck
1293	 * so we don't run in "Absolute Mode"
1294	 */
1295	write(rodent.mfd, "z8", 2);	/* Set Parity = "NONE" */
1296	usleep(50000);
1297	write(rodent.mfd, "zb", 2);	/* Set Format = "Binary" */
1298	usleep(50000);
1299	write(rodent.mfd, "@", 1);	/* Set Report Mode = "Stream" */
1300	usleep(50000);
1301	write(rodent.mfd, "R", 1);	/* Set Output Rate = "45 rps" */
1302	usleep(50000);
1303	write(rodent.mfd, "I\x20", 2);	/* Set Incrememtal Mode "20" */
1304	usleep(50000);
1305	write(rodent.mfd, "E", 1);	/* Set Data Type = "Relative */
1306	usleep(50000);
1307
1308	/* Resolution is in 'lines per inch' on the Hitachi tablet */
1309	if      (rodent.resolution == MOUSE_RES_LOW) 		c = 'g';
1310	else if (rodent.resolution == MOUSE_RES_MEDIUMLOW)	c = 'e';
1311	else if (rodent.resolution == MOUSE_RES_MEDIUMHIGH)	c = 'h';
1312	else if (rodent.resolution == MOUSE_RES_HIGH)		c = 'd';
1313	else if (rodent.resolution <=   40) 			c = 'g';
1314	else if (rodent.resolution <=  100) 			c = 'd';
1315	else if (rodent.resolution <=  200) 			c = 'e';
1316	else if (rodent.resolution <=  500) 			c = 'h';
1317	else if (rodent.resolution <= 1000) 			c = 'j';
1318	else                                			c = 'd';
1319	write(rodent.mfd, &c, 1);
1320	usleep(50000);
1321
1322	write(rodent.mfd, "\021", 1);	/* Resume DATA output */
1323	break;
1324
1325    case MOUSE_PROTO_THINK:
1326	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1327	/* the PnP ID string may be sent again, discard it */
1328	usleep(200000);
1329	i = FREAD;
1330	ioctl(rodent.mfd, TIOCFLUSH, &i);
1331	/* send the command to initialize the beast */
1332	for (s = "E5E5"; *s; ++s) {
1333	    write(rodent.mfd, s, 1);
1334	    FD_ZERO(&fds);
1335	    FD_SET(rodent.mfd, &fds);
1336	    if (select(FD_SETSIZE, &fds, NULL, NULL, NULL) <= 0)
1337		break;
1338	    read(rodent.mfd, &c, 1);
1339	    debug("%c", c);
1340	    if (c != *s)
1341	        break;
1342	}
1343	break;
1344
1345    case MOUSE_PROTO_MSC:
1346	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1347	if (rodent.flags & ClearDTR) {
1348	   i = TIOCM_DTR;
1349	   ioctl(rodent.mfd, TIOCMBIC, &i);
1350        }
1351        if (rodent.flags & ClearRTS) {
1352	   i = TIOCM_RTS;
1353	   ioctl(rodent.mfd, TIOCMBIC, &i);
1354        }
1355	break;
1356
1357    case MOUSE_PROTO_SYSMOUSE:
1358	if (rodent.hw.iftype == MOUSE_IF_SYSMOUSE)
1359	    setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1360	/* fall through */
1361
1362    case MOUSE_PROTO_BUS:
1363    case MOUSE_PROTO_INPORT:
1364    case MOUSE_PROTO_PS2:
1365	if (rodent.rate >= 0)
1366	    rodent.mode.rate = rodent.rate;
1367	if (rodent.resolution != MOUSE_RES_UNKNOWN)
1368	    rodent.mode.resolution = rodent.resolution;
1369#if 0
1370	ioctl(rodent.mfd, MOUSE_SETMODE, &rodent.mode);
1371#endif
1372	break;
1373
1374    case MOUSE_PROTO_X10MOUSEREM:
1375#if 0
1376	mremote_serversetup();
1377#endif
1378	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1379	break;
1380
1381
1382    case MOUSE_PROTO_VERSAPAD:
1383	tcsendbreak(rodent.mfd, 0);	/* send break for 400 msec */
1384	i = FREAD;
1385	ioctl(rodent.mfd, TIOCFLUSH, &i);
1386	for (i = 0; i < 7; ++i) {
1387	    FD_ZERO(&fds);
1388	    FD_SET(rodent.mfd, &fds);
1389	    if (select(FD_SETSIZE, &fds, NULL, NULL, NULL) <= 0)
1390		break;
1391	    read(rodent.mfd, &c, 1);
1392	    buf[i] = c;
1393	}
1394	debug("%s\n", buf);
1395	if ((buf[0] != 'V') || (buf[1] != 'P')|| (buf[7] != '\r'))
1396	    break;
1397	setmousespeed(9600, rodent.baudrate, rodentcflags[rodent.rtype]);
1398	tcsendbreak(rodent.mfd, 0);	/* send break for 400 msec again */
1399	for (i = 0; i < 7; ++i) {
1400	    FD_ZERO(&fds);
1401	    FD_SET(rodent.mfd, &fds);
1402	    if (select(FD_SETSIZE, &fds, NULL, NULL, NULL) <= 0)
1403		break;
1404	    read(rodent.mfd, &c, 1);
1405	    debug("%c", c);
1406	    if (c != buf[i])
1407		break;
1408	}
1409	i = FREAD;
1410	ioctl(rodent.mfd, TIOCFLUSH, &i);
1411	break;
1412
1413    default:
1414	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1415	break;
1416    }
1417}
1418
1419static int
1420r_protocol(u_char rBuf, mousestatus_t *act)
1421{
1422    /* MOUSE_MSS_BUTTON?DOWN -> MOUSE_BUTTON?DOWN */
1423    static int butmapmss[4] = {	/* Microsoft, MouseMan, GlidePoint,
1424				   IntelliMouse, Thinking Mouse */
1425	0,
1426	MOUSE_BUTTON3DOWN,
1427	MOUSE_BUTTON1DOWN,
1428	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1429    };
1430    static int butmapmss2[4] = { /* Microsoft, MouseMan, GlidePoint,
1431				    Thinking Mouse */
1432	0,
1433	MOUSE_BUTTON4DOWN,
1434	MOUSE_BUTTON2DOWN,
1435	MOUSE_BUTTON2DOWN | MOUSE_BUTTON4DOWN,
1436    };
1437    /* MOUSE_INTELLI_BUTTON?DOWN -> MOUSE_BUTTON?DOWN */
1438    static int butmapintelli[4] = { /* IntelliMouse, NetMouse, Mie Mouse,
1439				       MouseMan+ */
1440	0,
1441	MOUSE_BUTTON2DOWN,
1442	MOUSE_BUTTON4DOWN,
1443	MOUSE_BUTTON2DOWN | MOUSE_BUTTON4DOWN,
1444    };
1445    /* MOUSE_MSC_BUTTON?UP -> MOUSE_BUTTON?DOWN */
1446    static int butmapmsc[8] = {	/* MouseSystems, MMSeries, Logitech,
1447				   Bus, sysmouse */
1448	0,
1449	MOUSE_BUTTON3DOWN,
1450	MOUSE_BUTTON2DOWN,
1451	MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN,
1452	MOUSE_BUTTON1DOWN,
1453	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1454	MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN,
1455	MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN
1456    };
1457    /* MOUSE_PS2_BUTTON?DOWN -> MOUSE_BUTTON?DOWN */
1458    static int butmapps2[8] = {	/* PS/2 */
1459	0,
1460	MOUSE_BUTTON1DOWN,
1461	MOUSE_BUTTON3DOWN,
1462	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1463	MOUSE_BUTTON2DOWN,
1464	MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN,
1465	MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN,
1466	MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN
1467    };
1468    /* for Hitachi tablet */
1469    static int butmaphit[8] = {	/* MM HitTablet */
1470	0,
1471	MOUSE_BUTTON3DOWN,
1472	MOUSE_BUTTON2DOWN,
1473	MOUSE_BUTTON1DOWN,
1474	MOUSE_BUTTON4DOWN,
1475	MOUSE_BUTTON5DOWN,
1476	MOUSE_BUTTON6DOWN,
1477	MOUSE_BUTTON7DOWN,
1478    };
1479    /* for serial VersaPad */
1480    static int butmapversa[8] = { /* VersaPad */
1481	0,
1482	0,
1483	MOUSE_BUTTON3DOWN,
1484	MOUSE_BUTTON3DOWN,
1485	MOUSE_BUTTON1DOWN,
1486	MOUSE_BUTTON1DOWN,
1487	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1488	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1489    };
1490    /* for PS/2 VersaPad */
1491    static int butmapversaps2[8] = { /* VersaPad */
1492	0,
1493	MOUSE_BUTTON3DOWN,
1494	0,
1495	MOUSE_BUTTON3DOWN,
1496	MOUSE_BUTTON1DOWN,
1497	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1498	MOUSE_BUTTON1DOWN,
1499	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1500    };
1501    static int           pBufP = 0;
1502    static unsigned char pBuf[8];
1503    static int		 prev_x, prev_y;
1504    static int		 on = FALSE;
1505    int			 x, y;
1506
1507    debug("received char 0x%x",(int)rBuf);
1508    if (rodent.rtype == MOUSE_PROTO_KIDSPAD)
1509	return kidspad(rBuf, act) ;
1510
1511    /*
1512     * Hack for resyncing: We check here for a package that is:
1513     *  a) illegal (detected by wrong data-package header)
1514     *  b) invalid (0x80 == -128 and that might be wrong for MouseSystems)
1515     *  c) bad header-package
1516     *
1517     * NOTE: b) is a voilation of the MouseSystems-Protocol, since values of
1518     *       -128 are allowed, but since they are very seldom we can easily
1519     *       use them as package-header with no button pressed.
1520     * NOTE/2: On a PS/2 mouse any byte is valid as a data byte. Furthermore,
1521     *         0x80 is not valid as a header byte. For a PS/2 mouse we skip
1522     *         checking data bytes.
1523     *         For resyncing a PS/2 mouse we require the two most significant
1524     *         bits in the header byte to be 0. These are the overflow bits,
1525     *         and in case of an overflow we actually lose sync. Overflows
1526     *         are very rare, however, and we quickly gain sync again after
1527     *         an overflow condition. This is the best we can do. (Actually,
1528     *         we could use bit 0x08 in the header byte for resyncing, since
1529     *         that bit is supposed to be always on, but nobody told
1530     *         Microsoft...)
1531     */
1532
1533    if (pBufP != 0 && rodent.rtype != MOUSE_PROTO_PS2 &&
1534	((rBuf & cur_proto[2]) != cur_proto[3] || rBuf == 0x80))
1535    {
1536	pBufP = 0;		/* skip package */
1537    }
1538
1539    if (pBufP == 0 && (rBuf & cur_proto[0]) != cur_proto[1])
1540	return 0;
1541
1542    /* is there an extra data byte? */
1543    if (pBufP >= cur_proto[4] && (rBuf & cur_proto[0]) != cur_proto[1])
1544    {
1545	/*
1546	 * Hack for Logitech MouseMan Mouse - Middle button
1547	 *
1548	 * Unfortunately this mouse has variable length packets: the standard
1549	 * Microsoft 3 byte packet plus an optional 4th byte whenever the
1550	 * middle button status changes.
1551	 *
1552	 * We have already processed the standard packet with the movement
1553	 * and button info.  Now post an event message with the old status
1554	 * of the left and right buttons and the updated middle button.
1555	 */
1556
1557	/*
1558	 * Even worse, different MouseMen and TrackMen differ in the 4th
1559	 * byte: some will send 0x00/0x20, others 0x01/0x21, or even
1560	 * 0x02/0x22, so I have to strip off the lower bits.
1561         *
1562         * [JCH-96/01/21]
1563         * HACK for ALPS "fourth button". (It's bit 0x10 of the "fourth byte"
1564         * and it is activated by tapping the glidepad with the finger! 8^)
1565         * We map it to bit bit3, and the reverse map in xf86Events just has
1566         * to be extended so that it is identified as Button 4. The lower
1567         * half of the reverse-map may remain unchanged.
1568	 */
1569
1570        /*
1571	 * [KY-97/08/03]
1572	 * Receive the fourth byte only when preceding three bytes have
1573	 * been detected (pBufP >= cur_proto[4]).  In the previous
1574	 * versions, the test was pBufP == 0; thus, we may have mistakingly
1575	 * received a byte even if we didn't see anything preceding
1576	 * the byte.
1577	 */
1578
1579	if ((rBuf & cur_proto[5]) != cur_proto[6]) {
1580            pBufP = 0;
1581	    return 0;
1582	}
1583
1584	switch (rodent.rtype) {
1585#if notyet
1586	case MOUSE_PROTO_MARIQUA:
1587	    /*
1588	     * This mouse has 16! buttons in addition to the standard
1589	     * three of them.  They return 0x10 though 0x1f in the
1590	     * so-called `ten key' mode and 0x30 though 0x3f in the
1591	     * `function key' mode.  As there are only 31 bits for
1592	     * button state (including the standard three), we ignore
1593	     * the bit 0x20 and don't distinguish the two modes.
1594	     */
1595	    act->dx = act->dy = act->dz = 0;
1596	    act->obutton = act->button;
1597	    rBuf &= 0x1f;
1598	    act->button = (1 << (rBuf - 13))
1599                | (act->obutton & (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN));
1600	    /*
1601	     * FIXME: this is a button "down" event. There needs to be
1602	     * a corresponding button "up" event... XXX
1603	     */
1604	    break;
1605#endif /* notyet */
1606
1607	/*
1608	 * IntelliMouse, NetMouse (including NetMouse Pro) and Mie Mouse
1609	 * always send the fourth byte, whereas the fourth byte is
1610	 * optional for GlidePoint and ThinkingMouse. The fourth byte
1611	 * is also optional for MouseMan+ and FirstMouse+ in their
1612	 * native mode. It is always sent if they are in the IntelliMouse
1613	 * compatible mode.
1614	 */
1615	case MOUSE_PROTO_INTELLI:	/* IntelliMouse, NetMouse, Mie Mouse,
1616					   MouseMan+ */
1617	    act->dx = act->dy = 0;
1618	    act->dz = (rBuf & 0x08) ? (rBuf & 0x0f) - 16 : (rBuf & 0x0f);
1619	    if ((act->dz >= 7) || (act->dz <= -7))
1620		act->dz = 0;
1621	    act->obutton = act->button;
1622	    act->button = butmapintelli[(rBuf & MOUSE_MSS_BUTTONS) >> 4]
1623		| (act->obutton & (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN));
1624	    break;
1625
1626	default:
1627	    act->dx = act->dy = act->dz = 0;
1628	    act->obutton = act->button;
1629	    act->button = butmapmss2[(rBuf & MOUSE_MSS_BUTTONS) >> 4]
1630		| (act->obutton & (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN));
1631	    break;
1632	}
1633
1634	act->flags = ((act->dx || act->dy || act->dz) ? MOUSE_POSCHANGED : 0)
1635	    | (act->obutton ^ act->button);
1636        pBufP = 0;
1637	return act->flags;
1638    }
1639
1640    if (pBufP >= cur_proto[4])
1641	pBufP = 0;
1642    pBuf[pBufP++] = rBuf;
1643    if (pBufP != cur_proto[4])
1644	return 0;
1645
1646    /*
1647     * assembly full package
1648     */
1649
1650    debug("assembled full packet (len %d) %x,%x,%x,%x,%x,%x,%x,%x",
1651	cur_proto[4],
1652	pBuf[0], pBuf[1], pBuf[2], pBuf[3],
1653	pBuf[4], pBuf[5], pBuf[6], pBuf[7]);
1654
1655    act->dz = 0;
1656    act->obutton = act->button;
1657    switch (rodent.rtype)
1658    {
1659    case MOUSE_PROTO_MS:		/* Microsoft */
1660    case MOUSE_PROTO_LOGIMOUSEMAN:	/* MouseMan/TrackMan */
1661    case MOUSE_PROTO_X10MOUSEREM:	/* X10 MouseRemote */
1662	act->button = act->obutton & MOUSE_BUTTON4DOWN;
1663	if (rodent.flags & ChordMiddle)
1664	    act->button |= ((pBuf[0] & MOUSE_MSS_BUTTONS) == MOUSE_MSS_BUTTONS)
1665		? MOUSE_BUTTON2DOWN
1666		: butmapmss[(pBuf[0] & MOUSE_MSS_BUTTONS) >> 4];
1667	else
1668	    act->button |= (act->obutton & MOUSE_BUTTON2DOWN)
1669		| butmapmss[(pBuf[0] & MOUSE_MSS_BUTTONS) >> 4];
1670
1671#if 0
1672	/* Send X10 btn events to remote client (ensure -128-+127 range) */
1673	if ((rodent.rtype == MOUSE_PROTO_X10MOUSEREM) &&
1674	    ((pBuf[0] & 0xFC) == 0x44) && (pBuf[2] == 0x3F)) {
1675	    if (rodent.mremcfd >= 0) {
1676		unsigned char key = (signed char)(((pBuf[0] & 0x03) << 6) |
1677						  (pBuf[1] & 0x3F));
1678		write( rodent.mremcfd, &key, 1 );
1679	    }
1680	    return 0;
1681	}
1682#endif
1683
1684	act->dx = (char)(((pBuf[0] & 0x03) << 6) | (pBuf[1] & 0x3F));
1685	act->dy = (char)(((pBuf[0] & 0x0C) << 4) | (pBuf[2] & 0x3F));
1686	break;
1687
1688    case MOUSE_PROTO_GLIDEPOINT:	/* GlidePoint */
1689    case MOUSE_PROTO_THINK:		/* ThinkingMouse */
1690    case MOUSE_PROTO_INTELLI:		/* IntelliMouse, NetMouse, Mie Mouse,
1691					   MouseMan+ */
1692	act->button = (act->obutton & (MOUSE_BUTTON2DOWN | MOUSE_BUTTON4DOWN))
1693            | butmapmss[(pBuf[0] & MOUSE_MSS_BUTTONS) >> 4];
1694	act->dx = (char)(((pBuf[0] & 0x03) << 6) | (pBuf[1] & 0x3F));
1695	act->dy = (char)(((pBuf[0] & 0x0C) << 4) | (pBuf[2] & 0x3F));
1696	break;
1697
1698    case MOUSE_PROTO_MSC:		/* MouseSystems Corp */
1699#if notyet
1700    case MOUSE_PROTO_MARIQUA:		/* Mariqua */
1701#endif
1702	act->button = butmapmsc[(~pBuf[0]) & MOUSE_MSC_BUTTONS];
1703	act->dx =    (char)(pBuf[1]) + (char)(pBuf[3]);
1704	act->dy = - ((char)(pBuf[2]) + (char)(pBuf[4]));
1705	break;
1706
1707    case MOUSE_PROTO_HITTAB:		/* MM HitTablet */
1708	act->button = butmaphit[pBuf[0] & 0x07];
1709	act->dx = (pBuf[0] & MOUSE_MM_XPOSITIVE) ?   pBuf[1] : - pBuf[1];
1710	act->dy = (pBuf[0] & MOUSE_MM_YPOSITIVE) ? - pBuf[2] :   pBuf[2];
1711	break;
1712
1713    case MOUSE_PROTO_MM:		/* MM Series */
1714    case MOUSE_PROTO_LOGI:		/* Logitech Mice */
1715	act->button = butmapmsc[pBuf[0] & MOUSE_MSC_BUTTONS];
1716	act->dx = (pBuf[0] & MOUSE_MM_XPOSITIVE) ?   pBuf[1] : - pBuf[1];
1717	act->dy = (pBuf[0] & MOUSE_MM_YPOSITIVE) ? - pBuf[2] :   pBuf[2];
1718	break;
1719
1720    case MOUSE_PROTO_VERSAPAD:		/* VersaPad */
1721	act->button = butmapversa[(pBuf[0] & MOUSE_VERSA_BUTTONS) >> 3];
1722	act->button |= (pBuf[0] & MOUSE_VERSA_TAP) ? MOUSE_BUTTON4DOWN : 0;
1723	act->dx = act->dy = 0;
1724	if (!(pBuf[0] & MOUSE_VERSA_IN_USE)) {
1725	    on = FALSE;
1726	    break;
1727	}
1728	x = (pBuf[2] << 6) | pBuf[1];
1729	if (x & 0x800)
1730	    x -= 0x1000;
1731	y = (pBuf[4] << 6) | pBuf[3];
1732	if (y & 0x800)
1733	    y -= 0x1000;
1734	if (on) {
1735	    act->dx = prev_x - x;
1736	    act->dy = prev_y - y;
1737	} else {
1738	    on = TRUE;
1739	}
1740	prev_x = x;
1741	prev_y = y;
1742	break;
1743
1744    case MOUSE_PROTO_BUS:		/* Bus */
1745    case MOUSE_PROTO_INPORT:		/* InPort */
1746	act->button = butmapmsc[(~pBuf[0]) & MOUSE_MSC_BUTTONS];
1747	act->dx =   (char)pBuf[1];
1748	act->dy = - (char)pBuf[2];
1749	break;
1750
1751    case MOUSE_PROTO_PS2:		/* PS/2 */
1752	act->button = butmapps2[pBuf[0] & MOUSE_PS2_BUTTONS];
1753	act->dx = (pBuf[0] & MOUSE_PS2_XNEG) ?    pBuf[1] - 256  :  pBuf[1];
1754	act->dy = (pBuf[0] & MOUSE_PS2_YNEG) ?  -(pBuf[2] - 256) : -pBuf[2];
1755	/*
1756	 * Moused usually operates the psm driver at the operation level 1
1757	 * which sends mouse data in MOUSE_PROTO_SYSMOUSE protocol.
1758	 * The following code takes effect only when the user explicitly
1759	 * requets the level 2 at which wheel movement and additional button
1760	 * actions are encoded in model-dependent formats. At the level 0
1761	 * the following code is no-op because the psm driver says the model
1762	 * is MOUSE_MODEL_GENERIC.
1763	 */
1764	switch (rodent.hw.model) {
1765	case MOUSE_MODEL_EXPLORER:
1766	    /* wheel and additional button data is in the fourth byte */
1767	    act->dz = (pBuf[3] & MOUSE_EXPLORER_ZNEG)
1768		? (pBuf[3] & 0x0f) - 16 : (pBuf[3] & 0x0f);
1769	    act->button |= (pBuf[3] & MOUSE_EXPLORER_BUTTON4DOWN)
1770		? MOUSE_BUTTON4DOWN : 0;
1771	    act->button |= (pBuf[3] & MOUSE_EXPLORER_BUTTON5DOWN)
1772		? MOUSE_BUTTON5DOWN : 0;
1773	    break;
1774	case MOUSE_MODEL_INTELLI:
1775	case MOUSE_MODEL_NET:
1776	    /* wheel data is in the fourth byte */
1777	    act->dz = (char)pBuf[3];
1778	    if ((act->dz >= 7) || (act->dz <= -7))
1779		act->dz = 0;
1780	    /* some compatible mice may have additional buttons */
1781	    act->button |= (pBuf[0] & MOUSE_PS2INTELLI_BUTTON4DOWN)
1782		? MOUSE_BUTTON4DOWN : 0;
1783	    act->button |= (pBuf[0] & MOUSE_PS2INTELLI_BUTTON5DOWN)
1784		? MOUSE_BUTTON5DOWN : 0;
1785	    break;
1786	case MOUSE_MODEL_MOUSEMANPLUS:
1787	    if (((pBuf[0] & MOUSE_PS2PLUS_SYNCMASK) == MOUSE_PS2PLUS_SYNC)
1788		    && (abs(act->dx) > 191)
1789		    && MOUSE_PS2PLUS_CHECKBITS(pBuf)) {
1790		/* the extended data packet encodes button and wheel events */
1791		switch (MOUSE_PS2PLUS_PACKET_TYPE(pBuf)) {
1792		case 1:
1793		    /* wheel data packet */
1794		    act->dx = act->dy = 0;
1795		    if (pBuf[2] & 0x80) {
1796			/* horizontal roller count - ignore it XXX*/
1797		    } else {
1798			/* vertical roller count */
1799			act->dz = (pBuf[2] & MOUSE_PS2PLUS_ZNEG)
1800			    ? (pBuf[2] & 0x0f) - 16 : (pBuf[2] & 0x0f);
1801		    }
1802		    act->button |= (pBuf[2] & MOUSE_PS2PLUS_BUTTON4DOWN)
1803			? MOUSE_BUTTON4DOWN : 0;
1804		    act->button |= (pBuf[2] & MOUSE_PS2PLUS_BUTTON5DOWN)
1805			? MOUSE_BUTTON5DOWN : 0;
1806		    break;
1807		case 2:
1808		    /* this packet type is reserved by Logitech */
1809		    /*
1810		     * IBM ScrollPoint Mouse uses this packet type to
1811		     * encode both vertical and horizontal scroll movement.
1812		     */
1813		    act->dx = act->dy = 0;
1814		    /* horizontal roller count */
1815		    if (pBuf[2] & 0x0f)
1816			act->dz = (pBuf[2] & MOUSE_SPOINT_WNEG) ? -2 : 2;
1817		    /* vertical roller count */
1818		    if (pBuf[2] & 0xf0)
1819			act->dz = (pBuf[2] & MOUSE_SPOINT_ZNEG) ? -1 : 1;
1820#if 0
1821		    /* vertical roller count */
1822		    act->dz = (pBuf[2] & MOUSE_SPOINT_ZNEG)
1823			? ((pBuf[2] >> 4) & 0x0f) - 16
1824			: ((pBuf[2] >> 4) & 0x0f);
1825		    /* horizontal roller count */
1826		    act->dw = (pBuf[2] & MOUSE_SPOINT_WNEG)
1827			? (pBuf[2] & 0x0f) - 16 : (pBuf[2] & 0x0f);
1828#endif
1829		    break;
1830		case 0:
1831		    /* device type packet - shouldn't happen */
1832		    /* FALL THROUGH */
1833		default:
1834		    act->dx = act->dy = 0;
1835		    act->button = act->obutton;
1836            	    debug("unknown PS2++ packet type %d: 0x%02x 0x%02x 0x%02x\n",
1837			  MOUSE_PS2PLUS_PACKET_TYPE(pBuf),
1838			  pBuf[0], pBuf[1], pBuf[2]);
1839		    break;
1840		}
1841	    } else {
1842		/* preserve button states */
1843		act->button |= act->obutton & MOUSE_EXTBUTTONS;
1844	    }
1845	    break;
1846	case MOUSE_MODEL_GLIDEPOINT:
1847	    /* `tapping' action */
1848	    act->button |= ((pBuf[0] & MOUSE_PS2_TAP)) ? 0 : MOUSE_BUTTON4DOWN;
1849	    break;
1850	case MOUSE_MODEL_NETSCROLL:
1851	    /* three addtional bytes encode buttons and wheel events */
1852	    act->button |= (pBuf[3] & MOUSE_PS2_BUTTON3DOWN)
1853		? MOUSE_BUTTON4DOWN : 0;
1854	    act->button |= (pBuf[3] & MOUSE_PS2_BUTTON1DOWN)
1855		? MOUSE_BUTTON5DOWN : 0;
1856	    act->dz = (pBuf[3] & MOUSE_PS2_XNEG) ? pBuf[4] - 256 : pBuf[4];
1857	    break;
1858	case MOUSE_MODEL_THINK:
1859	    /* the fourth button state in the first byte */
1860	    act->button |= (pBuf[0] & MOUSE_PS2_TAP) ? MOUSE_BUTTON4DOWN : 0;
1861	    break;
1862	case MOUSE_MODEL_VERSAPAD:
1863	    act->button = butmapversaps2[pBuf[0] & MOUSE_PS2VERSA_BUTTONS];
1864	    act->button |=
1865		(pBuf[0] & MOUSE_PS2VERSA_TAP) ? MOUSE_BUTTON4DOWN : 0;
1866	    act->dx = act->dy = 0;
1867	    if (!(pBuf[0] & MOUSE_PS2VERSA_IN_USE)) {
1868		on = FALSE;
1869		break;
1870	    }
1871	    x = ((pBuf[4] << 8) & 0xf00) | pBuf[1];
1872	    if (x & 0x800)
1873		x -= 0x1000;
1874	    y = ((pBuf[4] << 4) & 0xf00) | pBuf[2];
1875	    if (y & 0x800)
1876		y -= 0x1000;
1877	    if (on) {
1878		act->dx = prev_x - x;
1879		act->dy = prev_y - y;
1880	    } else {
1881		on = TRUE;
1882	    }
1883	    prev_x = x;
1884	    prev_y = y;
1885	    break;
1886	case MOUSE_MODEL_4D:
1887	    act->dx = (pBuf[1] & 0x80) ?    pBuf[1] - 256  :  pBuf[1];
1888	    act->dy = (pBuf[2] & 0x80) ?  -(pBuf[2] - 256) : -pBuf[2];
1889	    switch (pBuf[0] & MOUSE_4D_WHEELBITS) {
1890	    case 0x10:
1891		act->dz = 1;
1892		break;
1893	    case 0x30:
1894		act->dz = -1;
1895		break;
1896	    case 0x40:	/* 2nd wheel rolling right XXX */
1897		act->dz = 2;
1898		break;
1899	    case 0xc0:	/* 2nd wheel rolling left XXX */
1900		act->dz = -2;
1901		break;
1902	    }
1903	    break;
1904	case MOUSE_MODEL_4DPLUS:
1905	    if ((act->dx < 16 - 256) && (act->dy > 256 - 16)) {
1906		act->dx = act->dy = 0;
1907		if (pBuf[2] & MOUSE_4DPLUS_BUTTON4DOWN)
1908		    act->button |= MOUSE_BUTTON4DOWN;
1909		act->dz = (pBuf[2] & MOUSE_4DPLUS_ZNEG)
1910			      ? ((pBuf[2] & 0x07) - 8) : (pBuf[2] & 0x07);
1911	    } else {
1912		/* preserve previous button states */
1913		act->button |= act->obutton & MOUSE_EXTBUTTONS;
1914	    }
1915	    break;
1916	case MOUSE_MODEL_GENERIC:
1917	default:
1918	    break;
1919	}
1920	break;
1921
1922    case MOUSE_PROTO_SYSMOUSE:		/* sysmouse */
1923	act->button = butmapmsc[(~pBuf[0]) & MOUSE_SYS_STDBUTTONS];
1924	act->dx =    (char)(pBuf[1]) + (char)(pBuf[3]);
1925	act->dy = - ((char)(pBuf[2]) + (char)(pBuf[4]));
1926	if (rodent.level == 1) {
1927	    act->dz = ((char)(pBuf[5] << 1) + (char)(pBuf[6] << 1))/2;
1928	    act->button |= ((~pBuf[7] & MOUSE_SYS_EXTBUTTONS) << 3);
1929	}
1930	break;
1931
1932    default:
1933	return 0;
1934    }
1935    /*
1936     * We don't reset pBufP here yet, as there may be an additional data
1937     * byte in some protocols. See above.
1938     */
1939
1940    /* has something changed? */
1941    act->flags = ((act->dx || act->dy || act->dz) ? MOUSE_POSCHANGED : 0)
1942	| (act->obutton ^ act->button);
1943
1944    return act->flags;
1945}
1946
1947static int
1948r_statetrans(mousestatus_t *a1, mousestatus_t *a2, int trans)
1949{
1950    int changed;
1951    int flags;
1952
1953    a2->dx = a1->dx;
1954    a2->dy = a1->dy;
1955    a2->dz = a1->dz;
1956    a2->obutton = a2->button;
1957    a2->button = a1->button;
1958    a2->flags = a1->flags;
1959    changed = FALSE;
1960
1961    if (rodent.flags & Emulate3Button) {
1962	if (debug > 2)
1963	    debug("state:%d, trans:%d -> state:%d",
1964		  mouse_button_state, trans,
1965		  states[mouse_button_state].s[trans]);
1966	/*
1967	 * Avoid re-ordering button and movement events. While a button
1968	 * event is deferred, throw away up to BUTTON2_MAXMOVE movement
1969	 * events to allow for mouse jitter. If more movement events
1970	 * occur, then complete the deferred button events immediately.
1971	 */
1972	if ((a2->dx != 0 || a2->dy != 0) &&
1973	    S_DELAYED(states[mouse_button_state].s[trans])) {
1974		if (++mouse_move_delayed > BUTTON2_MAXMOVE) {
1975			mouse_move_delayed = 0;
1976			mouse_button_state =
1977			    states[mouse_button_state].s[A_TIMEOUT];
1978			changed = TRUE;
1979		} else
1980			a2->dx = a2->dy = 0;
1981	} else
1982		mouse_move_delayed = 0;
1983	if (mouse_button_state != states[mouse_button_state].s[trans])
1984		changed = TRUE;
1985	if (changed)
1986		gettimeofday(&mouse_button_state_tv, NULL);
1987	mouse_button_state = states[mouse_button_state].s[trans];
1988	a2->button &=
1989	    ~(MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN);
1990	a2->button &= states[mouse_button_state].mask;
1991	a2->button |= states[mouse_button_state].buttons;
1992	flags = a2->flags & MOUSE_POSCHANGED;
1993	flags |= a2->obutton ^ a2->button;
1994	if (flags & MOUSE_BUTTON2DOWN) {
1995	    a2->flags = flags & MOUSE_BUTTON2DOWN;
1996	    r_timestamp(a2);
1997	}
1998	a2->flags = flags;
1999    }
2000    return changed;
2001}
2002
2003/* phisical to logical button mapping */
2004static int p2l[MOUSE_MAXBUTTON] = {
2005    MOUSE_BUTTON1DOWN, MOUSE_BUTTON2DOWN, MOUSE_BUTTON3DOWN, MOUSE_BUTTON4DOWN,
2006    MOUSE_BUTTON5DOWN, MOUSE_BUTTON6DOWN, MOUSE_BUTTON7DOWN, MOUSE_BUTTON8DOWN,
2007    0x00000100,        0x00000200,        0x00000400,        0x00000800,
2008    0x00001000,        0x00002000,        0x00004000,        0x00008000,
2009    0x00010000,        0x00020000,        0x00040000,        0x00080000,
2010    0x00100000,        0x00200000,        0x00400000,        0x00800000,
2011    0x01000000,        0x02000000,        0x04000000,        0x08000000,
2012    0x10000000,        0x20000000,        0x40000000,
2013};
2014
2015static char *
2016skipspace(char *s)
2017{
2018    while(isspace(*s))
2019	++s;
2020    return s;
2021}
2022
2023static int
2024r_installmap(char *arg)
2025{
2026    int pbutton;
2027    int lbutton;
2028    char *s;
2029
2030    while (*arg) {
2031	arg = skipspace(arg);
2032	s = arg;
2033	while (isdigit(*arg))
2034	    ++arg;
2035	arg = skipspace(arg);
2036	if ((arg <= s) || (*arg != '='))
2037	    return FALSE;
2038	lbutton = atoi(s);
2039
2040	arg = skipspace(++arg);
2041	s = arg;
2042	while (isdigit(*arg))
2043	    ++arg;
2044	if ((arg <= s) || (!isspace(*arg) && (*arg != '\0')))
2045	    return FALSE;
2046	pbutton = atoi(s);
2047
2048	if ((lbutton <= 0) || (lbutton > MOUSE_MAXBUTTON))
2049	    return FALSE;
2050	if ((pbutton <= 0) || (pbutton > MOUSE_MAXBUTTON))
2051	    return FALSE;
2052	p2l[pbutton - 1] = 1 << (lbutton - 1);
2053	mstate[lbutton - 1] = &bstate[pbutton - 1];
2054    }
2055
2056    return TRUE;
2057}
2058
2059static void
2060r_map(mousestatus_t *act1, mousestatus_t *act2)
2061{
2062    register int pb;
2063    register int pbuttons;
2064    int lbuttons;
2065
2066    pbuttons = act1->button;
2067    lbuttons = 0;
2068
2069    act2->obutton = act2->button;
2070    if (pbuttons & rodent.wmode) {
2071	pbuttons &= ~rodent.wmode;
2072	act1->dz = act1->dy;
2073	act1->dx = 0;
2074	act1->dy = 0;
2075    }
2076    act2->dx = act1->dx;
2077    act2->dy = act1->dy;
2078    act2->dz = act1->dz;
2079
2080    switch (rodent.zmap[0]) {
2081    case 0:	/* do nothing */
2082	break;
2083    case MOUSE_XAXIS:
2084	if (act1->dz != 0) {
2085	    act2->dx = act1->dz;
2086	    act2->dz = 0;
2087	}
2088	break;
2089    case MOUSE_YAXIS:
2090	if (act1->dz != 0) {
2091	    act2->dy = act1->dz;
2092	    act2->dz = 0;
2093	}
2094	break;
2095    default:	/* buttons */
2096	pbuttons &= ~(rodent.zmap[0] | rodent.zmap[1]
2097		    | rodent.zmap[2] | rodent.zmap[3]);
2098	if ((act1->dz < -1) && rodent.zmap[2]) {
2099	    pbuttons |= rodent.zmap[2];
2100	    zstate[2].count = 1;
2101	} else if (act1->dz < 0) {
2102	    pbuttons |= rodent.zmap[0];
2103	    zstate[0].count = 1;
2104	} else if ((act1->dz > 1) && rodent.zmap[3]) {
2105	    pbuttons |= rodent.zmap[3];
2106	    zstate[3].count = 1;
2107	} else if (act1->dz > 0) {
2108	    pbuttons |= rodent.zmap[1];
2109	    zstate[1].count = 1;
2110	}
2111	act2->dz = 0;
2112	break;
2113    }
2114
2115    for (pb = 0; (pb < MOUSE_MAXBUTTON) && (pbuttons != 0); ++pb) {
2116	lbuttons |= (pbuttons & 1) ? p2l[pb] : 0;
2117	pbuttons >>= 1;
2118    }
2119    act2->button = lbuttons;
2120
2121    act2->flags = ((act2->dx || act2->dy || act2->dz) ? MOUSE_POSCHANGED : 0)
2122	| (act2->obutton ^ act2->button);
2123}
2124
2125static void
2126r_timestamp(mousestatus_t *act)
2127{
2128    struct timeval tv;
2129    struct timeval tv1;
2130    struct timeval tv2;
2131    struct timeval tv3;
2132    int button;
2133    int mask;
2134    int i;
2135
2136    mask = act->flags & MOUSE_BUTTONS;
2137#if 0
2138    if (mask == 0)
2139	return;
2140#endif
2141
2142    gettimeofday(&tv1, NULL);
2143
2144    /* double click threshold */
2145    tv2.tv_sec = rodent.clickthreshold/1000;
2146    tv2.tv_usec = (rodent.clickthreshold%1000)*1000;
2147    timersub(&tv1, &tv2, &tv);
2148    debug("tv:  %ld %ld", tv.tv_sec, tv.tv_usec);
2149
2150    /* 3 button emulation timeout */
2151    tv2.tv_sec = rodent.button2timeout/1000;
2152    tv2.tv_usec = (rodent.button2timeout%1000)*1000;
2153    timersub(&tv1, &tv2, &tv3);
2154
2155    button = MOUSE_BUTTON1DOWN;
2156    for (i = 0; (i < MOUSE_MAXBUTTON) && (mask != 0); ++i) {
2157        if (mask & 1) {
2158            if (act->button & button) {
2159                /* the button is down */
2160    		debug("  :  %ld %ld",
2161		    bstate[i].tv.tv_sec, bstate[i].tv.tv_usec);
2162		if (timercmp(&tv, &bstate[i].tv, >)) {
2163                    bstate[i].count = 1;
2164                } else {
2165                    ++bstate[i].count;
2166                }
2167		bstate[i].tv = tv1;
2168            } else {
2169                /* the button is up */
2170                bstate[i].tv = tv1;
2171            }
2172        } else {
2173	    if (act->button & button) {
2174		/* the button has been down */
2175		if (timercmp(&tv3, &bstate[i].tv, >)) {
2176		    bstate[i].count = 1;
2177		    bstate[i].tv = tv1;
2178		    act->flags |= button;
2179		    debug("button %d timeout", i + 1);
2180		}
2181	    } else {
2182		/* the button has been up */
2183	    }
2184	}
2185	button <<= 1;
2186	mask >>= 1;
2187    }
2188}
2189
2190static int
2191r_timeout(void)
2192{
2193    struct timeval tv;
2194    struct timeval tv1;
2195    struct timeval tv2;
2196
2197    if (states[mouse_button_state].timeout)
2198	return TRUE;
2199    gettimeofday(&tv1, NULL);
2200    tv2.tv_sec = rodent.button2timeout/1000;
2201    tv2.tv_usec = (rodent.button2timeout%1000)*1000;
2202    timersub(&tv1, &tv2, &tv);
2203    return timercmp(&tv, &mouse_button_state_tv, >);
2204}
2205
2206/* $XConsortium: posix_tty.c,v 1.3 95/01/05 20:42:55 kaleb Exp $ */
2207/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/shared/posix_tty.c,v 3.4 1995/01/28 17:05:03 dawes Exp $ */
2208/*
2209 * Copyright 1993 by David Dawes <dawes@physics.su.oz.au>
2210 *
2211 * Permission to use, copy, modify, distribute, and sell this software and its
2212 * documentation for any purpose is hereby granted without fee, provided that
2213 * the above copyright notice appear in all copies and that both that
2214 * copyright notice and this permission notice appear in supporting
2215 * documentation, and that the name of David Dawes
2216 * not be used in advertising or publicity pertaining to distribution of
2217 * the software without specific, written prior permission.
2218 * David Dawes makes no representations about the suitability of this
2219 * software for any purpose.  It is provided "as is" without express or
2220 * implied warranty.
2221 *
2222 * DAVID DAWES DISCLAIMS ALL WARRANTIES WITH REGARD TO
2223 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
2224 * FITNESS, IN NO EVENT SHALL DAVID DAWES BE LIABLE FOR
2225 * ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
2226 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
2227 * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
2228 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
2229 *
2230 */
2231
2232
2233static void
2234setmousespeed(int old, int new, unsigned cflag)
2235{
2236	struct termios tty;
2237	char *c;
2238
2239	if (tcgetattr(rodent.mfd, &tty) < 0)
2240	{
2241		logwarn("unable to get status of mouse fd", 0);
2242		return;
2243	}
2244
2245	tty.c_iflag = IGNBRK | IGNPAR;
2246	tty.c_oflag = 0;
2247	tty.c_lflag = 0;
2248	tty.c_cflag = (tcflag_t)cflag;
2249	tty.c_cc[VTIME] = 0;
2250	tty.c_cc[VMIN] = 1;
2251
2252	switch (old)
2253	{
2254	case 9600:
2255		cfsetispeed(&tty, B9600);
2256		cfsetospeed(&tty, B9600);
2257		break;
2258	case 4800:
2259		cfsetispeed(&tty, B4800);
2260		cfsetospeed(&tty, B4800);
2261		break;
2262	case 2400:
2263		cfsetispeed(&tty, B2400);
2264		cfsetospeed(&tty, B2400);
2265		break;
2266	case 1200:
2267	default:
2268		cfsetispeed(&tty, B1200);
2269		cfsetospeed(&tty, B1200);
2270	}
2271
2272	if (tcsetattr(rodent.mfd, TCSADRAIN, &tty) < 0)
2273	{
2274		logwarn("unable to set status of mouse fd", 0);
2275		return;
2276	}
2277
2278	switch (new)
2279	{
2280	case 9600:
2281		c = "*q";
2282		cfsetispeed(&tty, B9600);
2283		cfsetospeed(&tty, B9600);
2284		break;
2285	case 4800:
2286		c = "*p";
2287		cfsetispeed(&tty, B4800);
2288		cfsetospeed(&tty, B4800);
2289		break;
2290	case 2400:
2291		c = "*o";
2292		cfsetispeed(&tty, B2400);
2293		cfsetospeed(&tty, B2400);
2294		break;
2295	case 1200:
2296	default:
2297		c = "*n";
2298		cfsetispeed(&tty, B1200);
2299		cfsetospeed(&tty, B1200);
2300	}
2301
2302	if (rodent.rtype == MOUSE_PROTO_LOGIMOUSEMAN
2303	    || rodent.rtype == MOUSE_PROTO_LOGI)
2304	{
2305		if (write(rodent.mfd, c, 2) != 2)
2306		{
2307			logwarn("unable to write to mouse fd", 0);
2308			return;
2309		}
2310	}
2311	usleep(100000);
2312
2313	if (tcsetattr(rodent.mfd, TCSADRAIN, &tty) < 0)
2314		logwarn("unable to set status of mouse fd", 0);
2315}
2316
2317/*
2318 * PnP COM device support
2319 *
2320 * It's a simplistic implementation, but it works :-)
2321 * KY, 31/7/97.
2322 */
2323
2324/*
2325 * Try to elicit a PnP ID as described in
2326 * Microsoft, Hayes: "Plug and Play External COM Device Specification,
2327 * rev 1.00", 1995.
2328 *
2329 * The routine does not fully implement the COM Enumerator as par Section
2330 * 2.1 of the document.  In particular, we don't have idle state in which
2331 * the driver software monitors the com port for dynamic connection or
2332 * removal of a device at the port, because `moused' simply quits if no
2333 * device is found.
2334 *
2335 * In addition, as PnP COM device enumeration procedure slightly has
2336 * changed since its first publication, devices which follow earlier
2337 * revisions of the above spec. may fail to respond if the rev 1.0
2338 * procedure is used. XXX
2339 */
2340static int
2341pnpwakeup1(void)
2342{
2343    struct timeval timeout;
2344    fd_set fds;
2345    int i;
2346
2347    /*
2348     * This is the procedure described in rev 1.0 of PnP COM device spec.
2349     * Unfortunately, some devices which comform to earlier revisions of
2350     * the spec gets confused and do not return the ID string...
2351     */
2352    debug("PnP COM device rev 1.0 probe...");
2353
2354    /* port initialization (2.1.2) */
2355    ioctl(rodent.mfd, TIOCMGET, &i);
2356    i |= TIOCM_DTR;		/* DTR = 1 */
2357    i &= ~TIOCM_RTS;		/* RTS = 0 */
2358    ioctl(rodent.mfd, TIOCMSET, &i);
2359    usleep(240000);
2360
2361    /*
2362     * The PnP COM device spec. dictates that the mouse must set DSR
2363     * in response to DTR (by hardware or by software) and that if DSR is
2364     * not asserted, the host computer should think that there is no device
2365     * at this serial port.  But some mice just don't do that...
2366     */
2367    ioctl(rodent.mfd, TIOCMGET, &i);
2368    debug("modem status 0%o", i);
2369    if ((i & TIOCM_DSR) == 0)
2370	return FALSE;
2371
2372    /* port setup, 1st phase (2.1.3) */
2373    setmousespeed(1200, 1200, (CS7 | CREAD | CLOCAL | HUPCL));
2374    i = TIOCM_DTR | TIOCM_RTS;	/* DTR = 0, RTS = 0 */
2375    ioctl(rodent.mfd, TIOCMBIC, &i);
2376    usleep(240000);
2377    i = TIOCM_DTR;		/* DTR = 1, RTS = 0 */
2378    ioctl(rodent.mfd, TIOCMBIS, &i);
2379    usleep(240000);
2380
2381    /* wait for response, 1st phase (2.1.4) */
2382    i = FREAD;
2383    ioctl(rodent.mfd, TIOCFLUSH, &i);
2384    i = TIOCM_RTS;		/* DTR = 1, RTS = 1 */
2385    ioctl(rodent.mfd, TIOCMBIS, &i);
2386
2387    /* try to read something */
2388    FD_ZERO(&fds);
2389    FD_SET(rodent.mfd, &fds);
2390    timeout.tv_sec = 0;
2391    timeout.tv_usec = 240000;
2392    if (select(FD_SETSIZE, &fds, NULL, NULL, &timeout) > 0) {
2393	debug("pnpwakeup1(): valid response in first phase.");
2394	return TRUE;
2395    }
2396
2397    /* port setup, 2nd phase (2.1.5) */
2398    i = TIOCM_DTR | TIOCM_RTS;	/* DTR = 0, RTS = 0 */
2399    ioctl(rodent.mfd, TIOCMBIC, &i);
2400    usleep(240000);
2401
2402    /* wait for respose, 2nd phase (2.1.6) */
2403    i = FREAD;
2404    ioctl(rodent.mfd, TIOCFLUSH, &i);
2405    i = TIOCM_DTR | TIOCM_RTS;	/* DTR = 1, RTS = 1 */
2406    ioctl(rodent.mfd, TIOCMBIS, &i);
2407
2408    /* try to read something */
2409    FD_ZERO(&fds);
2410    FD_SET(rodent.mfd, &fds);
2411    timeout.tv_sec = 0;
2412    timeout.tv_usec = 240000;
2413    if (select(FD_SETSIZE, &fds, NULL, NULL, &timeout) > 0) {
2414	debug("pnpwakeup1(): valid response in second phase.");
2415	return TRUE;
2416    }
2417
2418    return FALSE;
2419}
2420
2421static int
2422pnpwakeup2(void)
2423{
2424    struct timeval timeout;
2425    fd_set fds;
2426    int i;
2427
2428    /*
2429     * This is a simplified procedure; it simply toggles RTS.
2430     */
2431    debug("alternate probe...");
2432
2433    ioctl(rodent.mfd, TIOCMGET, &i);
2434    i |= TIOCM_DTR;		/* DTR = 1 */
2435    i &= ~TIOCM_RTS;		/* RTS = 0 */
2436    ioctl(rodent.mfd, TIOCMSET, &i);
2437    usleep(240000);
2438
2439    setmousespeed(1200, 1200, (CS7 | CREAD | CLOCAL | HUPCL));
2440
2441    /* wait for respose */
2442    i = FREAD;
2443    ioctl(rodent.mfd, TIOCFLUSH, &i);
2444    i = TIOCM_DTR | TIOCM_RTS;	/* DTR = 1, RTS = 1 */
2445    ioctl(rodent.mfd, TIOCMBIS, &i);
2446
2447    /* try to read something */
2448    FD_ZERO(&fds);
2449    FD_SET(rodent.mfd, &fds);
2450    timeout.tv_sec = 0;
2451    timeout.tv_usec = 240000;
2452    if (select(FD_SETSIZE, &fds, NULL, NULL, &timeout) > 0) {
2453	debug("pnpwakeup2(): valid response.");
2454	return TRUE;
2455    }
2456
2457    return FALSE;
2458}
2459
2460static int
2461pnpgets(char *buf)
2462{
2463    struct timeval timeout;
2464    fd_set fds;
2465    int begin;
2466    int i;
2467    char c;
2468
2469    if (!pnpwakeup1() && !pnpwakeup2()) {
2470	/*
2471	 * According to PnP spec, we should set DTR = 1 and RTS = 0 while
2472	 * in idle state.  But, `moused' shall set DTR = RTS = 1 and proceed,
2473	 * assuming there is something at the port even if it didn't
2474	 * respond to the PnP enumeration procedure.
2475	 */
2476	i = TIOCM_DTR | TIOCM_RTS;		/* DTR = 1, RTS = 1 */
2477	ioctl(rodent.mfd, TIOCMBIS, &i);
2478	return 0;
2479    }
2480
2481    /* collect PnP COM device ID (2.1.7) */
2482    begin = -1;
2483    i = 0;
2484    usleep(240000);	/* the mouse must send `Begin ID' within 200msec */
2485    while (read(rodent.mfd, &c, 1) == 1) {
2486	/* we may see "M", or "M3..." before `Begin ID' */
2487	buf[i++] = c;
2488        if ((c == 0x08) || (c == 0x28)) {	/* Begin ID */
2489	    debug("begin-id %02x", c);
2490	    begin = i - 1;
2491	    break;
2492        }
2493        debug("%c %02x", c, c);
2494	if (i >= 256)
2495	    break;
2496    }
2497    if (begin < 0) {
2498	/* we haven't seen `Begin ID' in time... */
2499	goto connect_idle;
2500    }
2501
2502    ++c;			/* make it `End ID' */
2503    for (;;) {
2504        FD_ZERO(&fds);
2505        FD_SET(rodent.mfd, &fds);
2506        timeout.tv_sec = 0;
2507        timeout.tv_usec = 240000;
2508        if (select(FD_SETSIZE, &fds, NULL, NULL, &timeout) <= 0)
2509	    break;
2510
2511	read(rodent.mfd, &buf[i], 1);
2512        if (buf[i++] == c)	/* End ID */
2513	    break;
2514	if (i >= 256)
2515	    break;
2516    }
2517    if (begin > 0) {
2518	i -= begin;
2519	bcopy(&buf[begin], &buf[0], i);
2520    }
2521    /* string may not be human readable... */
2522    debug("len:%d, '%-*.*s'", i, i, i, buf);
2523
2524    if (buf[i - 1] == c)
2525	return i;		/* a valid PnP string */
2526
2527    /*
2528     * According to PnP spec, we should set DTR = 1 and RTS = 0 while
2529     * in idle state.  But, `moused' shall leave the modem control lines
2530     * as they are. See above.
2531     */
2532connect_idle:
2533
2534    /* we may still have something in the buffer */
2535    return ((i > 0) ? i : 0);
2536}
2537
2538static int
2539pnpparse(pnpid_t *id, char *buf, int len)
2540{
2541    char s[3];
2542    int offset;
2543    int sum = 0;
2544    int i, j;
2545
2546    id->revision = 0;
2547    id->eisaid = NULL;
2548    id->serial = NULL;
2549    id->class = NULL;
2550    id->compat = NULL;
2551    id->description = NULL;
2552    id->neisaid = 0;
2553    id->nserial = 0;
2554    id->nclass = 0;
2555    id->ncompat = 0;
2556    id->ndescription = 0;
2557
2558    if ((buf[0] != 0x28) && (buf[0] != 0x08)) {
2559	/* non-PnP mice */
2560	switch(buf[0]) {
2561	default:
2562	    return FALSE;
2563	case 'M': /* Microsoft */
2564	    id->eisaid = "PNP0F01";
2565	    break;
2566	case 'H': /* MouseSystems */
2567	    id->eisaid = "PNP0F04";
2568	    break;
2569	}
2570	id->neisaid = strlen(id->eisaid);
2571	id->class = "MOUSE";
2572	id->nclass = strlen(id->class);
2573	debug("non-PnP mouse '%c'", buf[0]);
2574	return TRUE;
2575    }
2576
2577    /* PnP mice */
2578    offset = 0x28 - buf[0];
2579
2580    /* calculate checksum */
2581    for (i = 0; i < len - 3; ++i) {
2582	sum += buf[i];
2583	buf[i] += offset;
2584    }
2585    sum += buf[len - 1];
2586    for (; i < len; ++i)
2587	buf[i] += offset;
2588    debug("PnP ID string: '%*.*s'", len, len, buf);
2589
2590    /* revision */
2591    buf[1] -= offset;
2592    buf[2] -= offset;
2593    id->revision = ((buf[1] & 0x3f) << 6) | (buf[2] & 0x3f);
2594    debug("PnP rev %d.%02d", id->revision / 100, id->revision % 100);
2595
2596    /* EISA vender and product ID */
2597    id->eisaid = &buf[3];
2598    id->neisaid = 7;
2599
2600    /* option strings */
2601    i = 10;
2602    if (buf[i] == '\\') {
2603        /* device serial # */
2604        for (j = ++i; i < len; ++i) {
2605            if (buf[i] == '\\')
2606		break;
2607        }
2608	if (i >= len)
2609	    i -= 3;
2610	if (i - j == 8) {
2611            id->serial = &buf[j];
2612            id->nserial = 8;
2613	}
2614    }
2615    if (buf[i] == '\\') {
2616        /* PnP class */
2617        for (j = ++i; i < len; ++i) {
2618            if (buf[i] == '\\')
2619		break;
2620        }
2621	if (i >= len)
2622	    i -= 3;
2623	if (i > j + 1) {
2624            id->class = &buf[j];
2625            id->nclass = i - j;
2626        }
2627    }
2628    if (buf[i] == '\\') {
2629	/* compatible driver */
2630        for (j = ++i; i < len; ++i) {
2631            if (buf[i] == '\\')
2632		break;
2633        }
2634	/*
2635	 * PnP COM spec prior to v0.96 allowed '*' in this field,
2636	 * it's not allowed now; just igore it.
2637	 */
2638	if (buf[j] == '*')
2639	    ++j;
2640	if (i >= len)
2641	    i -= 3;
2642	if (i > j + 1) {
2643            id->compat = &buf[j];
2644            id->ncompat = i - j;
2645        }
2646    }
2647    if (buf[i] == '\\') {
2648	/* product description */
2649        for (j = ++i; i < len; ++i) {
2650            if (buf[i] == ';')
2651		break;
2652        }
2653	if (i >= len)
2654	    i -= 3;
2655	if (i > j + 1) {
2656            id->description = &buf[j];
2657            id->ndescription = i - j;
2658        }
2659    }
2660
2661    /* checksum exists if there are any optional fields */
2662    if ((id->nserial > 0) || (id->nclass > 0)
2663	|| (id->ncompat > 0) || (id->ndescription > 0)) {
2664        debug("PnP checksum: 0x%X", sum);
2665        sprintf(s, "%02X", sum & 0x0ff);
2666        if (strncmp(s, &buf[len - 3], 2) != 0) {
2667#if 0
2668            /*
2669	     * I found some mice do not comply with the PnP COM device
2670	     * spec regarding checksum... XXX
2671	     */
2672            logwarnx("PnP checksum error", 0);
2673	    return FALSE;
2674#endif
2675        }
2676    }
2677
2678    return TRUE;
2679}
2680
2681static symtab_t *
2682pnpproto(pnpid_t *id)
2683{
2684    symtab_t *t;
2685    int i, j;
2686
2687    if (id->nclass > 0)
2688	if ( strncmp(id->class, "MOUSE", id->nclass) != 0 &&
2689	     strncmp(id->class, "TABLET", id->nclass) != 0)
2690	    /* this is not a mouse! */
2691	    return NULL;
2692
2693    if (id->neisaid > 0) {
2694        t = gettoken(pnpprod, id->eisaid, id->neisaid);
2695	if (t->val != MOUSE_PROTO_UNKNOWN)
2696            return t;
2697    }
2698
2699    /*
2700     * The 'Compatible drivers' field may contain more than one
2701     * ID separated by ','.
2702     */
2703    if (id->ncompat <= 0)
2704	return NULL;
2705    for (i = 0; i < id->ncompat; ++i) {
2706        for (j = i; id->compat[i] != ','; ++i)
2707            if (i >= id->ncompat)
2708		break;
2709        if (i > j) {
2710            t = gettoken(pnpprod, id->compat + j, i - j);
2711	    if (t->val != MOUSE_PROTO_UNKNOWN)
2712                return t;
2713	}
2714    }
2715
2716    return NULL;
2717}
2718
2719/* name/val mapping */
2720
2721static symtab_t *
2722gettoken(symtab_t *tab, char *s, int len)
2723{
2724    int i;
2725
2726    for (i = 0; tab[i].name != NULL; ++i) {
2727	if (strncmp(tab[i].name, s, len) == 0)
2728	    break;
2729    }
2730    return &tab[i];
2731}
2732
2733static char *
2734gettokenname(symtab_t *tab, int val)
2735{
2736    int i;
2737
2738    for (i = 0; tab[i].name != NULL; ++i) {
2739	if (tab[i].val == val)
2740	    return tab[i].name;
2741    }
2742    return NULL;
2743}
2744
2745
2746/*
2747 * code to read from the Genius Kidspad tablet.
2748
2749The tablet responds to the COM PnP protocol 1.0 with EISA-ID KYE0005,
2750and to pre-pnp probes (RTS toggle) with 'T' (tablet ?)
27519600, 8 bit, parity odd.
2752
2753The tablet puts out 5 bytes. b0 (mask 0xb8, value 0xb8) contains
2754the proximity, tip and button info:
2755   (byte0 & 0x1)	true = tip pressed
2756   (byte0 & 0x2)	true = button pressed
2757   (byte0 & 0x40)	false = pen in proximity of tablet.
2758
2759The next 4 bytes are used for coordinates xl, xh, yl, yh (7 bits valid).
2760
2761Only absolute coordinates are returned, so we use the following approach:
2762we store the last coordinates sent when the pen went out of the tablet,
2763
2764
2765 *
2766 */
2767
2768typedef enum {
2769    S_IDLE, S_PROXY, S_FIRST, S_DOWN, S_UP
2770} k_status ;
2771
2772static int
2773kidspad(u_char rxc, mousestatus_t *act)
2774{
2775    static int buf[5];
2776    static int buflen = 0, b_prev = 0 , x_prev = -1, y_prev = -1 ;
2777    static k_status status = S_IDLE ;
2778    static struct timeval old, now ;
2779
2780    int x, y ;
2781
2782    if (buflen > 0 && (rxc & 0x80) ) {
2783	fprintf(stderr, "invalid code %d 0x%x\n", buflen, rxc);
2784	buflen = 0 ;
2785    }
2786    if (buflen == 0 && (rxc & 0xb8) != 0xb8 ) {
2787	fprintf(stderr, "invalid code 0 0x%x\n", rxc);
2788	return 0 ; /* invalid code, no action */
2789    }
2790    buf[buflen++] = rxc ;
2791    if (buflen < 5)
2792	return 0 ;
2793
2794    buflen = 0 ; /* for next time... */
2795
2796    x = buf[1]+128*(buf[2] - 7) ;
2797    if (x < 0) x = 0 ;
2798    y = 28*128 - (buf[3] + 128* (buf[4] - 7)) ;
2799    if (y < 0) y = 0 ;
2800
2801    x /= 8 ;
2802    y /= 8 ;
2803
2804    act->flags = 0 ;
2805    act->obutton = act->button ;
2806    act->dx = act->dy = act->dz = 0 ;
2807    gettimeofday(&now, NULL);
2808    if ( buf[0] & 0x40 ) /* pen went out of reach */
2809	status = S_IDLE ;
2810    else if (status == S_IDLE) { /* pen is newly near the tablet */
2811	act->flags |= MOUSE_POSCHANGED ; /* force update */
2812	status = S_PROXY ;
2813	x_prev = x ;
2814	y_prev = y ;
2815    }
2816    old = now ;
2817    act->dx = x - x_prev ;
2818    act->dy = y - y_prev ;
2819    if (act->dx || act->dy)
2820	act->flags |= MOUSE_POSCHANGED ;
2821    x_prev = x ;
2822    y_prev = y ;
2823    if (b_prev != 0 && b_prev != buf[0]) { /* possibly record button change */
2824	act->button = 0 ;
2825	if ( buf[0] & 0x01 ) /* tip pressed */
2826	    act->button |= MOUSE_BUTTON1DOWN ;
2827	if ( buf[0] & 0x02 ) /* button pressed */
2828	    act->button |= MOUSE_BUTTON2DOWN ;
2829	act->flags |= MOUSE_BUTTONSCHANGED ;
2830    }
2831    b_prev = buf[0] ;
2832    return act->flags ;
2833}
2834
2835