FreeBSD/Linux Kernel Cross Reference
sys/i386/isa/mse.c
1 /*
2 * Copyright 1992 by the University of Guelph
3 *
4 * Permission to use, copy and modify this
5 * software and its documentation for any purpose and without
6 * fee is hereby granted, provided that the above copyright
7 * notice appear in all copies and that both that copyright
8 * notice and this permission notice appear in supporting
9 * documentation.
10 * University of Guelph makes no representations about the suitability of
11 * this software for any purpose. It is provided "as is"
12 * without express or implied warranty.
13 */
14
15 #include <sys/cdefs.h>
16 __FBSDID("$FreeBSD: releng/5.2/sys/i386/isa/mse.c 122352 2003-11-09 09:17:26Z tanimura $");
17
18 /*
19 * Driver for the Logitech and ATI Inport Bus mice for use with 386bsd and
20 * the X386 port, courtesy of
21 * Rick Macklem, rick@snowhite.cis.uoguelph.ca
22 * Caveats: The driver currently uses spltty(), but doesn't use any
23 * generic tty code. It could use splmse() (that only masks off the
24 * bus mouse interrupt, but that would require hacking in i386/isa/icu.s.
25 * (This may be worth the effort, since the Logitech generates 30/60
26 * interrupts/sec continuously while it is open.)
27 * NB: The ATI has NOT been tested yet!
28 */
29
30 /*
31 * Modification history:
32 * Sep 6, 1994 -- Lars Fredriksen(fredriks@mcs.com)
33 * improved probe based on input from Logitech.
34 *
35 * Oct 19, 1992 -- E. Stark (stark@cs.sunysb.edu)
36 * fixes to make it work with Microsoft InPort busmouse
37 *
38 * Jan, 1993 -- E. Stark (stark@cs.sunysb.edu)
39 * added patches for new "select" interface
40 *
41 * May 4, 1993 -- E. Stark (stark@cs.sunysb.edu)
42 * changed position of some spl()'s in mseread
43 *
44 * October 8, 1993 -- E. Stark (stark@cs.sunysb.edu)
45 * limit maximum negative x/y value to -127 to work around XFree problem
46 * that causes spurious button pushes.
47 */
48
49 #include <sys/param.h>
50 #include <sys/systm.h>
51 #include <sys/conf.h>
52 #include <sys/kernel.h>
53 #include <sys/bus.h>
54 #include <sys/poll.h>
55 #include <sys/selinfo.h>
56 #include <sys/uio.h>
57 #include <sys/mouse.h>
58
59 #include <machine/bus_pio.h>
60 #include <machine/bus.h>
61 #include <machine/clock.h>
62 #include <machine/resource.h>
63 #include <sys/rman.h>
64
65 #include <isa/isavar.h>
66
67 /* driver configuration flags (config) */
68 #define MSE_CONFIG_ACCEL 0x00f0 /* acceleration factor */
69 #define MSE_CONFIG_FLAGS (MSE_CONFIG_ACCEL)
70
71 /*
72 * Software control structure for mouse. The sc_enablemouse(),
73 * sc_disablemouse() and sc_getmouse() routines must be called spl'd().
74 */
75 typedef struct mse_softc {
76 int sc_flags;
77 int sc_mousetype;
78 struct selinfo sc_selp;
79 struct resource *sc_port;
80 struct resource *sc_intr;
81 bus_space_tag_t sc_iot;
82 bus_space_handle_t sc_ioh;
83 void *sc_ih;
84 void (*sc_enablemouse)(bus_space_tag_t t,
85 bus_space_handle_t h);
86 void (*sc_disablemouse)(bus_space_tag_t t,
87 bus_space_handle_t h);
88 void (*sc_getmouse)(bus_space_tag_t t, bus_space_handle_t h,
89 int *dx, int *dy, int *but);
90 int sc_deltax;
91 int sc_deltay;
92 int sc_obuttons;
93 int sc_buttons;
94 int sc_bytesread;
95 u_char sc_bytes[MOUSE_SYS_PACKETSIZE];
96 struct callout_handle sc_callout;
97 int sc_watchdog;
98 dev_t sc_dev;
99 dev_t sc_ndev;
100 mousehw_t hw;
101 mousemode_t mode;
102 mousestatus_t status;
103 } mse_softc_t;
104
105 static devclass_t mse_devclass;
106
107 static int mse_probe(device_t dev);
108 static int mse_attach(device_t dev);
109 static int mse_detach(device_t dev);
110
111 static device_method_t mse_methods[] = {
112 DEVMETHOD(device_probe, mse_probe),
113 DEVMETHOD(device_attach, mse_attach),
114 DEVMETHOD(device_detach, mse_detach),
115 { 0, 0 }
116 };
117
118 static driver_t mse_driver = {
119 "mse",
120 mse_methods,
121 sizeof(mse_softc_t),
122 };
123
124 DRIVER_MODULE(mse, isa, mse_driver, mse_devclass, 0, 0);
125
126 static struct isa_pnp_id mse_ids[] = {
127 { 0x000fd041, "Bus mouse" }, /* PNP0F00 */
128 { 0x020fd041, "InPort mouse" }, /* PNP0F02 */
129 { 0x0d0fd041, "InPort mouse compatible" }, /* PNP0F0D */
130 { 0x110fd041, "Bus mouse compatible" }, /* PNP0F11 */
131 { 0x150fd041, "Logitech bus mouse" }, /* PNP0F15 */
132 { 0x180fd041, "Logitech bus mouse compatible" },/* PNP0F18 */
133 { 0 }
134 };
135
136 static d_open_t mseopen;
137 static d_close_t mseclose;
138 static d_read_t mseread;
139 static d_ioctl_t mseioctl;
140 static d_poll_t msepoll;
141
142 #define CDEV_MAJOR 27
143 static struct cdevsw mse_cdevsw = {
144 .d_open = mseopen,
145 .d_close = mseclose,
146 .d_read = mseread,
147 .d_ioctl = mseioctl,
148 .d_poll = msepoll,
149 .d_name = "mse",
150 .d_maj = CDEV_MAJOR,
151 };
152
153 static void mseintr(void *);
154 static timeout_t msetimeout;
155
156 /* Flags */
157 #define MSESC_OPEN 0x1
158 #define MSESC_WANT 0x2
159
160 /* and Mouse Types */
161 #define MSE_NONE 0 /* don't move this! */
162 #define MSE_LOGITECH 0x1
163 #define MSE_ATIINPORT 0x2
164 #define MSE_LOGI_SIG 0xA5
165
166 #define MSE_PORTA 0
167 #define MSE_PORTB 1
168 #define MSE_PORTC 2
169 #define MSE_PORTD 3
170 #define MSE_IOSIZE 4
171
172 #define MSE_UNIT(dev) (minor(dev) >> 1)
173 #define MSE_NBLOCKIO(dev) (minor(dev) & 0x1)
174
175 /*
176 * Logitech bus mouse definitions
177 */
178 #define MSE_SETUP 0x91 /* What does this mean? */
179 /* The definition for the control port */
180 /* is as follows: */
181
182 /* D7 = Mode set flag (1 = active) */
183 /* D6,D5 = Mode selection (port A) */
184 /* 00 = Mode 0 = Basic I/O */
185 /* 01 = Mode 1 = Strobed I/O */
186 /* 10 = Mode 2 = Bi-dir bus */
187 /* D4 = Port A direction (1 = input)*/
188 /* D3 = Port C (upper 4 bits) */
189 /* direction. (1 = input) */
190 /* D2 = Mode selection (port B & C) */
191 /* 0 = Mode 0 = Basic I/O */
192 /* 1 = Mode 1 = Strobed I/O */
193 /* D1 = Port B direction (1 = input)*/
194 /* D0 = Port C (lower 4 bits) */
195 /* direction. (1 = input) */
196
197 /* So 91 means Basic I/O on all 3 ports,*/
198 /* Port A is an input port, B is an */
199 /* output port, C is split with upper */
200 /* 4 bits being an output port and lower*/
201 /* 4 bits an input port, and enable the */
202 /* sucker. */
203 /* Courtesy Intel 8255 databook. Lars */
204 #define MSE_HOLD 0x80
205 #define MSE_RXLOW 0x00
206 #define MSE_RXHIGH 0x20
207 #define MSE_RYLOW 0x40
208 #define MSE_RYHIGH 0x60
209 #define MSE_DISINTR 0x10
210 #define MSE_INTREN 0x00
211
212 static int mse_probelogi(device_t dev, mse_softc_t *sc);
213 static void mse_disablelogi(bus_space_tag_t t,
214 bus_space_handle_t h);
215 static void mse_getlogi(bus_space_tag_t t, bus_space_handle_t h,
216 int *dx, int *dy, int *but);
217 static void mse_enablelogi(bus_space_tag_t t,
218 bus_space_handle_t h);
219
220 /*
221 * ATI Inport mouse definitions
222 */
223 #define MSE_INPORT_RESET 0x80
224 #define MSE_INPORT_STATUS 0x00
225 #define MSE_INPORT_DX 0x01
226 #define MSE_INPORT_DY 0x02
227 #define MSE_INPORT_MODE 0x07
228 #define MSE_INPORT_HOLD 0x20
229 #define MSE_INPORT_INTREN 0x09
230
231 static int mse_probeati(device_t dev, mse_softc_t *sc);
232 static void mse_enableati(bus_space_tag_t t, bus_space_handle_t h);
233 static void mse_disableati(bus_space_tag_t t, bus_space_handle_t h);
234 static void mse_getati(bus_space_tag_t t, bus_space_handle_t h,
235 int *dx, int *dy, int *but);
236
237 #define MSEPRI (PZERO + 3)
238
239 /*
240 * Table of mouse types.
241 * Keep the Logitech last, since I haven't figured out how to probe it
242 * properly yet. (Someday I'll have the documentation.)
243 */
244 static struct mse_types {
245 int m_type; /* Type of bus mouse */
246 int (*m_probe)(device_t dev, mse_softc_t *sc);
247 /* Probe routine to test for it */
248 void (*m_enable)(bus_space_tag_t t, bus_space_handle_t h);
249 /* Start routine */
250 void (*m_disable)(bus_space_tag_t t, bus_space_handle_t h);
251 /* Disable interrupts routine */
252 void (*m_get)(bus_space_tag_t t, bus_space_handle_t h, int *dx,
253 int *dy, int *but);
254 /* and get mouse status */
255 mousehw_t m_hw; /* buttons iftype type model hwid */
256 mousemode_t m_mode; /* proto rate res accel level size mask */
257 } mse_types[] = {
258 { MSE_ATIINPORT,
259 mse_probeati, mse_enableati, mse_disableati, mse_getati,
260 { 2, MOUSE_IF_INPORT, MOUSE_MOUSE, MOUSE_MODEL_GENERIC, 0, },
261 { MOUSE_PROTO_INPORT, -1, -1, 0, 0, MOUSE_MSC_PACKETSIZE,
262 { MOUSE_MSC_SYNCMASK, MOUSE_MSC_SYNC, }, }, },
263 { MSE_LOGITECH,
264 mse_probelogi, mse_enablelogi, mse_disablelogi, mse_getlogi,
265 { 2, MOUSE_IF_BUS, MOUSE_MOUSE, MOUSE_MODEL_GENERIC, 0, },
266 { MOUSE_PROTO_BUS, -1, -1, 0, 0, MOUSE_MSC_PACKETSIZE,
267 { MOUSE_MSC_SYNCMASK, MOUSE_MSC_SYNC, }, }, },
268 { 0, },
269 };
270
271 static int
272 mse_probe(dev)
273 device_t dev;
274 {
275 mse_softc_t *sc;
276 int error;
277 int rid;
278 int i;
279
280 /* check PnP IDs */
281 error = ISA_PNP_PROBE(device_get_parent(dev), dev, mse_ids);
282 if (error == ENXIO)
283 return error;
284
285 sc = device_get_softc(dev);
286 rid = 0;
287 sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
288 MSE_IOSIZE, RF_ACTIVE);
289 if (sc->sc_port == NULL)
290 return ENXIO;
291 sc->sc_iot = rman_get_bustag(sc->sc_port);
292 sc->sc_ioh = rman_get_bushandle(sc->sc_port);
293
294 /*
295 * Check for each mouse type in the table.
296 */
297 i = 0;
298 while (mse_types[i].m_type) {
299 if ((*mse_types[i].m_probe)(dev, sc)) {
300 sc->sc_mousetype = mse_types[i].m_type;
301 sc->sc_enablemouse = mse_types[i].m_enable;
302 sc->sc_disablemouse = mse_types[i].m_disable;
303 sc->sc_getmouse = mse_types[i].m_get;
304 sc->hw = mse_types[i].m_hw;
305 sc->mode = mse_types[i].m_mode;
306 bus_release_resource(dev, SYS_RES_IOPORT, rid,
307 sc->sc_port);
308 device_set_desc(dev, "Bus/InPort Mouse");
309 return 0;
310 }
311 i++;
312 }
313 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port);
314 return ENXIO;
315 }
316
317 static int
318 mse_attach(dev)
319 device_t dev;
320 {
321 mse_softc_t *sc;
322 int flags;
323 int unit;
324 int rid;
325
326 sc = device_get_softc(dev);
327 unit = device_get_unit(dev);
328
329 rid = 0;
330 sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
331 MSE_IOSIZE, RF_ACTIVE);
332 if (sc->sc_port == NULL)
333 return ENXIO;
334 sc->sc_intr = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
335 RF_ACTIVE);
336 if (sc->sc_intr == NULL) {
337 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port);
338 return ENXIO;
339 }
340 sc->sc_iot = rman_get_bustag(sc->sc_port);
341 sc->sc_ioh = rman_get_bushandle(sc->sc_port);
342
343 if (BUS_SETUP_INTR(device_get_parent(dev), dev, sc->sc_intr,
344 INTR_TYPE_TTY, mseintr, sc, &sc->sc_ih)) {
345 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port);
346 bus_release_resource(dev, SYS_RES_IRQ, rid, sc->sc_intr);
347 return ENXIO;
348 }
349
350 flags = device_get_flags(dev);
351 sc->mode.accelfactor = (flags & MSE_CONFIG_ACCEL) >> 4;
352 callout_handle_init(&sc->sc_callout);
353
354 sc->sc_dev = make_dev(&mse_cdevsw, unit << 1, 0, 0, 0600,
355 "mse%d", unit);
356 sc->sc_ndev = make_dev(&mse_cdevsw, (unit<<1)+1, 0, 0, 0600,
357 "nmse%d", unit);
358
359 return 0;
360 }
361
362 static int
363 mse_detach(dev)
364 device_t dev;
365 {
366 mse_softc_t *sc;
367 int rid;
368
369 sc = device_get_softc(dev);
370 if (sc->sc_flags & MSESC_OPEN)
371 return EBUSY;
372
373 rid = 0;
374 BUS_TEARDOWN_INTR(device_get_parent(dev), dev, sc->sc_intr, sc->sc_ih);
375 bus_release_resource(dev, SYS_RES_IRQ, rid, sc->sc_intr);
376 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port);
377
378 destroy_dev(sc->sc_dev);
379 destroy_dev(sc->sc_ndev);
380
381 return 0;
382 }
383
384 /*
385 * Exclusive open the mouse, initialize it and enable interrupts.
386 */
387 static int
388 mseopen(dev, flags, fmt, td)
389 dev_t dev;
390 int flags;
391 int fmt;
392 struct thread *td;
393 {
394 mse_softc_t *sc;
395 int s;
396
397 sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
398 if (sc == NULL)
399 return (ENXIO);
400 if (sc->sc_mousetype == MSE_NONE)
401 return (ENXIO);
402 if (sc->sc_flags & MSESC_OPEN)
403 return (EBUSY);
404 sc->sc_flags |= MSESC_OPEN;
405 sc->sc_obuttons = sc->sc_buttons = MOUSE_MSC_BUTTONS;
406 sc->sc_deltax = sc->sc_deltay = 0;
407 sc->sc_bytesread = sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
408 sc->sc_watchdog = FALSE;
409 sc->sc_callout = timeout(msetimeout, dev, hz*2);
410 sc->mode.level = 0;
411 sc->status.flags = 0;
412 sc->status.button = sc->status.obutton = 0;
413 sc->status.dx = sc->status.dy = sc->status.dz = 0;
414
415 /*
416 * Initialize mouse interface and enable interrupts.
417 */
418 s = spltty();
419 (*sc->sc_enablemouse)(sc->sc_iot, sc->sc_ioh);
420 splx(s);
421 return (0);
422 }
423
424 /*
425 * mseclose: just turn off mouse innterrupts.
426 */
427 static int
428 mseclose(dev, flags, fmt, td)
429 dev_t dev;
430 int flags;
431 int fmt;
432 struct thread *td;
433 {
434 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
435 int s;
436
437 untimeout(msetimeout, dev, sc->sc_callout);
438 callout_handle_init(&sc->sc_callout);
439 s = spltty();
440 (*sc->sc_disablemouse)(sc->sc_iot, sc->sc_ioh);
441 sc->sc_flags &= ~MSESC_OPEN;
442 splx(s);
443 return(0);
444 }
445
446 /*
447 * mseread: return mouse info using the MSC serial protocol, but without
448 * using bytes 4 and 5.
449 * (Yes this is cheesy, but it makes the X386 server happy, so...)
450 */
451 static int
452 mseread(dev, uio, ioflag)
453 dev_t dev;
454 struct uio *uio;
455 int ioflag;
456 {
457 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
458 int xfer, s, error;
459
460 /*
461 * If there are no protocol bytes to be read, set up a new protocol
462 * packet.
463 */
464 s = spltty(); /* XXX Should be its own spl, but where is imlXX() */
465 if (sc->sc_bytesread >= sc->mode.packetsize) {
466 while (sc->sc_deltax == 0 && sc->sc_deltay == 0 &&
467 (sc->sc_obuttons ^ sc->sc_buttons) == 0) {
468 if (MSE_NBLOCKIO(dev)) {
469 splx(s);
470 return (0);
471 }
472 sc->sc_flags |= MSESC_WANT;
473 error = tsleep(sc, MSEPRI | PCATCH,
474 "mseread", 0);
475 if (error) {
476 splx(s);
477 return (error);
478 }
479 }
480
481 /*
482 * Generate protocol bytes.
483 * For some reason X386 expects 5 bytes but never uses
484 * the fourth or fifth?
485 */
486 sc->sc_bytes[0] = sc->mode.syncmask[1]
487 | (sc->sc_buttons & ~sc->mode.syncmask[0]);
488 if (sc->sc_deltax > 127)
489 sc->sc_deltax = 127;
490 if (sc->sc_deltax < -127)
491 sc->sc_deltax = -127;
492 sc->sc_deltay = -sc->sc_deltay; /* Otherwise mousey goes wrong way */
493 if (sc->sc_deltay > 127)
494 sc->sc_deltay = 127;
495 if (sc->sc_deltay < -127)
496 sc->sc_deltay = -127;
497 sc->sc_bytes[1] = sc->sc_deltax;
498 sc->sc_bytes[2] = sc->sc_deltay;
499 sc->sc_bytes[3] = sc->sc_bytes[4] = 0;
500 sc->sc_bytes[5] = sc->sc_bytes[6] = 0;
501 sc->sc_bytes[7] = MOUSE_SYS_EXTBUTTONS;
502 sc->sc_obuttons = sc->sc_buttons;
503 sc->sc_deltax = sc->sc_deltay = 0;
504 sc->sc_bytesread = 0;
505 }
506 splx(s);
507 xfer = min(uio->uio_resid, sc->mode.packetsize - sc->sc_bytesread);
508 error = uiomove(&sc->sc_bytes[sc->sc_bytesread], xfer, uio);
509 if (error)
510 return (error);
511 sc->sc_bytesread += xfer;
512 return(0);
513 }
514
515 /*
516 * mseioctl: process ioctl commands.
517 */
518 static int
519 mseioctl(dev, cmd, addr, flag, td)
520 dev_t dev;
521 u_long cmd;
522 caddr_t addr;
523 int flag;
524 struct thread *td;
525 {
526 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
527 mousestatus_t status;
528 int err = 0;
529 int s;
530
531 switch (cmd) {
532
533 case MOUSE_GETHWINFO:
534 s = spltty();
535 *(mousehw_t *)addr = sc->hw;
536 if (sc->mode.level == 0)
537 ((mousehw_t *)addr)->model = MOUSE_MODEL_GENERIC;
538 splx(s);
539 break;
540
541 case MOUSE_GETMODE:
542 s = spltty();
543 *(mousemode_t *)addr = sc->mode;
544 switch (sc->mode.level) {
545 case 0:
546 break;
547 case 1:
548 ((mousemode_t *)addr)->protocol = MOUSE_PROTO_SYSMOUSE;
549 ((mousemode_t *)addr)->syncmask[0] = MOUSE_SYS_SYNCMASK;
550 ((mousemode_t *)addr)->syncmask[1] = MOUSE_SYS_SYNC;
551 break;
552 }
553 splx(s);
554 break;
555
556 case MOUSE_SETMODE:
557 switch (((mousemode_t *)addr)->level) {
558 case 0:
559 case 1:
560 break;
561 default:
562 return (EINVAL);
563 }
564 if (((mousemode_t *)addr)->accelfactor < -1)
565 return (EINVAL);
566 else if (((mousemode_t *)addr)->accelfactor >= 0)
567 sc->mode.accelfactor =
568 ((mousemode_t *)addr)->accelfactor;
569 sc->mode.level = ((mousemode_t *)addr)->level;
570 switch (sc->mode.level) {
571 case 0:
572 sc->sc_bytesread = sc->mode.packetsize
573 = MOUSE_MSC_PACKETSIZE;
574 break;
575 case 1:
576 sc->sc_bytesread = sc->mode.packetsize
577 = MOUSE_SYS_PACKETSIZE;
578 break;
579 }
580 break;
581
582 case MOUSE_GETLEVEL:
583 *(int *)addr = sc->mode.level;
584 break;
585
586 case MOUSE_SETLEVEL:
587 switch (*(int *)addr) {
588 case 0:
589 sc->mode.level = *(int *)addr;
590 sc->sc_bytesread = sc->mode.packetsize
591 = MOUSE_MSC_PACKETSIZE;
592 break;
593 case 1:
594 sc->mode.level = *(int *)addr;
595 sc->sc_bytesread = sc->mode.packetsize
596 = MOUSE_SYS_PACKETSIZE;
597 break;
598 default:
599 return (EINVAL);
600 }
601 break;
602
603 case MOUSE_GETSTATUS:
604 s = spltty();
605 status = sc->status;
606 sc->status.flags = 0;
607 sc->status.obutton = sc->status.button;
608 sc->status.button = 0;
609 sc->status.dx = 0;
610 sc->status.dy = 0;
611 sc->status.dz = 0;
612 splx(s);
613 *(mousestatus_t *)addr = status;
614 break;
615
616 case MOUSE_READSTATE:
617 case MOUSE_READDATA:
618 return (ENODEV);
619
620 #if (defined(MOUSE_GETVARS))
621 case MOUSE_GETVARS:
622 case MOUSE_SETVARS:
623 return (ENODEV);
624 #endif
625
626 default:
627 return (ENOTTY);
628 }
629 return (err);
630 }
631
632 /*
633 * msepoll: check for mouse input to be processed.
634 */
635 static int
636 msepoll(dev, events, td)
637 dev_t dev;
638 int events;
639 struct thread *td;
640 {
641 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
642 int s;
643 int revents = 0;
644
645 s = spltty();
646 if (events & (POLLIN | POLLRDNORM)) {
647 if (sc->sc_bytesread != sc->mode.packetsize ||
648 sc->sc_deltax != 0 || sc->sc_deltay != 0 ||
649 (sc->sc_obuttons ^ sc->sc_buttons) != 0)
650 revents |= events & (POLLIN | POLLRDNORM);
651 else {
652 /*
653 * Since this is an exclusive open device, any previous
654 * proc pointer is trash now, so we can just assign it.
655 */
656 selrecord(td, &sc->sc_selp);
657 }
658 }
659 splx(s);
660 return (revents);
661 }
662
663 /*
664 * msetimeout: watchdog timer routine.
665 */
666 static void
667 msetimeout(arg)
668 void *arg;
669 {
670 dev_t dev;
671 mse_softc_t *sc;
672
673 dev = (dev_t)arg;
674 sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
675 if (sc->sc_watchdog) {
676 if (bootverbose)
677 printf("mse%d: lost interrupt?\n", MSE_UNIT(dev));
678 mseintr(sc);
679 }
680 sc->sc_watchdog = TRUE;
681 sc->sc_callout = timeout(msetimeout, dev, hz);
682 }
683
684 /*
685 * mseintr: update mouse status. sc_deltax and sc_deltay are accumulative.
686 */
687 static void
688 mseintr(arg)
689 void *arg;
690 {
691 /*
692 * the table to turn MouseSystem button bits (MOUSE_MSC_BUTTON?UP)
693 * into `mousestatus' button bits (MOUSE_BUTTON?DOWN).
694 */
695 static int butmap[8] = {
696 0,
697 MOUSE_BUTTON3DOWN,
698 MOUSE_BUTTON2DOWN,
699 MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN,
700 MOUSE_BUTTON1DOWN,
701 MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
702 MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN,
703 MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN
704 };
705 mse_softc_t *sc = arg;
706 int dx, dy, but;
707 int sign;
708
709 #ifdef DEBUG
710 static int mse_intrcnt = 0;
711 if((mse_intrcnt++ % 10000) == 0)
712 printf("mseintr\n");
713 #endif /* DEBUG */
714 if ((sc->sc_flags & MSESC_OPEN) == 0)
715 return;
716
717 (*sc->sc_getmouse)(sc->sc_iot, sc->sc_ioh, &dx, &dy, &but);
718 if (sc->mode.accelfactor > 0) {
719 sign = (dx < 0);
720 dx = dx * dx / sc->mode.accelfactor;
721 if (dx == 0)
722 dx = 1;
723 if (sign)
724 dx = -dx;
725 sign = (dy < 0);
726 dy = dy * dy / sc->mode.accelfactor;
727 if (dy == 0)
728 dy = 1;
729 if (sign)
730 dy = -dy;
731 }
732 sc->sc_deltax += dx;
733 sc->sc_deltay += dy;
734 sc->sc_buttons = but;
735
736 but = butmap[~but & MOUSE_MSC_BUTTONS];
737 sc->status.dx += dx;
738 sc->status.dy += dy;
739 sc->status.flags |= ((dx || dy) ? MOUSE_POSCHANGED : 0)
740 | (sc->status.button ^ but);
741 sc->status.button = but;
742
743 sc->sc_watchdog = FALSE;
744
745 /*
746 * If mouse state has changed, wake up anyone wanting to know.
747 */
748 if (sc->sc_deltax != 0 || sc->sc_deltay != 0 ||
749 (sc->sc_obuttons ^ sc->sc_buttons) != 0) {
750 if (sc->sc_flags & MSESC_WANT) {
751 sc->sc_flags &= ~MSESC_WANT;
752 wakeup(sc);
753 }
754 selwakeuppri(&sc->sc_selp, MSEPRI);
755 }
756 }
757
758 /*
759 * Routines for the Logitech mouse.
760 */
761 /*
762 * Test for a Logitech bus mouse and return 1 if it is.
763 * (until I know how to use the signature port properly, just disable
764 * interrupts and return 1)
765 */
766 static int
767 mse_probelogi(dev, sc)
768 device_t dev;
769 mse_softc_t *sc;
770 {
771
772 int sig;
773
774 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSE_PORTD, MSE_SETUP);
775 /* set the signature port */
776 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSE_PORTB, MSE_LOGI_SIG);
777
778 DELAY(30000); /* 30 ms delay */
779 sig = bus_space_read_1(sc->sc_iot, sc->sc_ioh, MSE_PORTB) & 0xFF;
780 if (sig == MSE_LOGI_SIG) {
781 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSE_PORTC,
782 MSE_DISINTR);
783 return(1);
784 } else {
785 if (bootverbose)
786 device_printf(dev, "wrong signature %x\n", sig);
787 return(0);
788 }
789 }
790
791 /*
792 * Initialize Logitech mouse and enable interrupts.
793 */
794 static void
795 mse_enablelogi(tag, handle)
796 bus_space_tag_t tag;
797 bus_space_handle_t handle;
798 {
799 int dx, dy, but;
800
801 bus_space_write_1(tag, handle, MSE_PORTD, MSE_SETUP);
802 mse_getlogi(tag, handle, &dx, &dy, &but);
803 }
804
805 /*
806 * Disable interrupts for Logitech mouse.
807 */
808 static void
809 mse_disablelogi(tag, handle)
810 bus_space_tag_t tag;
811 bus_space_handle_t handle;
812 {
813
814 bus_space_write_1(tag, handle, MSE_PORTC, MSE_DISINTR);
815 }
816
817 /*
818 * Get the current dx, dy and button up/down state.
819 */
820 static void
821 mse_getlogi(tag, handle, dx, dy, but)
822 bus_space_tag_t tag;
823 bus_space_handle_t handle;
824 int *dx;
825 int *dy;
826 int *but;
827 {
828 register char x, y;
829
830 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RXLOW);
831 x = bus_space_read_1(tag, handle, MSE_PORTA);
832 *but = (x >> 5) & MOUSE_MSC_BUTTONS;
833 x &= 0xf;
834 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RXHIGH);
835 x |= (bus_space_read_1(tag, handle, MSE_PORTA) << 4);
836 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RYLOW);
837 y = (bus_space_read_1(tag, handle, MSE_PORTA) & 0xf);
838 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RYHIGH);
839 y |= (bus_space_read_1(tag, handle, MSE_PORTA) << 4);
840 *dx = x;
841 *dy = y;
842 bus_space_write_1(tag, handle, MSE_PORTC, MSE_INTREN);
843 }
844
845 /*
846 * Routines for the ATI Inport bus mouse.
847 */
848 /*
849 * Test for an ATI Inport bus mouse and return 1 if it is.
850 * (do not enable interrupts)
851 */
852 static int
853 mse_probeati(dev, sc)
854 device_t dev;
855 mse_softc_t *sc;
856 {
857 int i;
858
859 for (i = 0; i < 2; i++)
860 if (bus_space_read_1(sc->sc_iot, sc->sc_ioh, MSE_PORTC) == 0xde)
861 return (1);
862 return (0);
863 }
864
865 /*
866 * Initialize ATI Inport mouse and enable interrupts.
867 */
868 static void
869 mse_enableati(tag, handle)
870 bus_space_tag_t tag;
871 bus_space_handle_t handle;
872 {
873
874 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_RESET);
875 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE);
876 bus_space_write_1(tag, handle, MSE_PORTB, MSE_INPORT_INTREN);
877 }
878
879 /*
880 * Disable interrupts for ATI Inport mouse.
881 */
882 static void
883 mse_disableati(tag, handle)
884 bus_space_tag_t tag;
885 bus_space_handle_t handle;
886 {
887
888 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE);
889 bus_space_write_1(tag, handle, MSE_PORTB, 0);
890 }
891
892 /*
893 * Get current dx, dy and up/down button state.
894 */
895 static void
896 mse_getati(tag, handle, dx, dy, but)
897 bus_space_tag_t tag;
898 bus_space_handle_t handle;
899 int *dx;
900 int *dy;
901 int *but;
902 {
903 register char byte;
904
905 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE);
906 bus_space_write_1(tag, handle, MSE_PORTB, MSE_INPORT_HOLD);
907 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_STATUS);
908 *but = ~bus_space_read_1(tag, handle, MSE_PORTB) & MOUSE_MSC_BUTTONS;
909 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_DX);
910 byte = bus_space_read_1(tag, handle, MSE_PORTB);
911 *dx = byte;
912 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_DY);
913 byte = bus_space_read_1(tag, handle, MSE_PORTB);
914 *dy = byte;
915 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE);
916 bus_space_write_1(tag, handle, MSE_PORTB, MSE_INPORT_INTREN);
917 }
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