mse.c revision 82554
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 * $FreeBSD: head/sys/dev/mse/mse.c 82554 2001-08-30 09:16:53Z msmith $ 15 */ 16/* 17 * Driver for the Logitech and ATI Inport Bus mice for use with 386bsd and 18 * the X386 port, courtesy of 19 * Rick Macklem, rick@snowhite.cis.uoguelph.ca 20 * Caveats: The driver currently uses spltty(), but doesn't use any 21 * generic tty code. It could use splmse() (that only masks off the 22 * bus mouse interrupt, but that would require hacking in i386/isa/icu.s. 23 * (This may be worth the effort, since the Logitech generates 30/60 24 * interrupts/sec continuously while it is open.) 25 * NB: The ATI has NOT been tested yet! 26 */ 27 28/* 29 * Modification history: 30 * Sep 6, 1994 -- Lars Fredriksen(fredriks@mcs.com) 31 * improved probe based on input from Logitech. 32 * 33 * Oct 19, 1992 -- E. Stark (stark@cs.sunysb.edu) 34 * fixes to make it work with Microsoft InPort busmouse 35 * 36 * Jan, 1993 -- E. Stark (stark@cs.sunysb.edu) 37 * added patches for new "select" interface 38 * 39 * May 4, 1993 -- E. Stark (stark@cs.sunysb.edu) 40 * changed position of some spl()'s in mseread 41 * 42 * October 8, 1993 -- E. Stark (stark@cs.sunysb.edu) 43 * limit maximum negative x/y value to -127 to work around XFree problem 44 * that causes spurious button pushes. 45 */ 46 47#include <sys/param.h> 48#include <sys/systm.h> 49#include <sys/conf.h> 50#include <sys/kernel.h> 51#include <sys/bus.h> 52#include <sys/poll.h> 53#include <sys/selinfo.h> 54#include <sys/uio.h> 55#include <sys/mouse.h> 56 57#include <machine/bus_pio.h> 58#include <machine/bus.h> 59#include <machine/clock.h> 60#include <machine/resource.h> 61#include <sys/rman.h> 62 63#include <isa/isavar.h> 64 65/* driver configuration flags (config) */ 66#define MSE_CONFIG_ACCEL 0x00f0 /* acceleration factor */ 67#define MSE_CONFIG_FLAGS (MSE_CONFIG_ACCEL) 68 69/* 70 * Software control structure for mouse. The sc_enablemouse(), 71 * sc_disablemouse() and sc_getmouse() routines must be called spl'd(). 72 */ 73typedef struct mse_softc { 74 int sc_flags; 75 int sc_mousetype; 76 struct selinfo sc_selp; 77 struct resource *sc_port; 78 struct resource *sc_intr; 79 bus_space_tag_t sc_iot; 80 bus_space_handle_t sc_ioh; 81 void *sc_ih; 82 void (*sc_enablemouse) __P((bus_space_tag_t t, 83 bus_space_handle_t h)); 84 void (*sc_disablemouse) __P((bus_space_tag_t t, 85 bus_space_handle_t h)); 86 void (*sc_getmouse) __P((bus_space_tag_t t, 87 bus_space_handle_t h, 88 int *dx, int *dy, int *but)); 89 int sc_deltax; 90 int sc_deltay; 91 int sc_obuttons; 92 int sc_buttons; 93 int sc_bytesread; 94 u_char sc_bytes[MOUSE_SYS_PACKETSIZE]; 95 struct callout_handle sc_callout; 96 int sc_watchdog; 97 dev_t sc_dev; 98 dev_t sc_ndev; 99 mousehw_t hw; 100 mousemode_t mode; 101 mousestatus_t status; 102} mse_softc_t; 103 104static devclass_t mse_devclass; 105 106static int mse_probe __P((device_t dev)); 107static int mse_attach __P((device_t dev)); 108static int mse_detach __P((device_t dev)); 109 110static device_method_t mse_methods[] = { 111 DEVMETHOD(device_probe, mse_probe), 112 DEVMETHOD(device_attach, mse_attach), 113 DEVMETHOD(device_detach, mse_detach), 114 { 0, 0 } 115}; 116 117static driver_t mse_driver = { 118 "mse", 119 mse_methods, 120 sizeof(mse_softc_t), 121}; 122 123DRIVER_MODULE(mse, isa, mse_driver, mse_devclass, 0, 0); 124 125static struct isa_pnp_id mse_ids[] = { 126 { 0x000fd041, "Bus mouse" }, /* PNP0F00 */ 127 { 0x020fd041, "InPort mouse" }, /* PNP0F02 */ 128 { 0x0d0fd041, "InPort mouse compatible" }, /* PNP0F0D */ 129 { 0x110fd041, "Bus mouse compatible" }, /* PNP0F11 */ 130 { 0x150fd041, "Logitech bus mouse" }, /* PNP0F15 */ 131 { 0x180fd041, "Logitech bus mouse compatible" },/* PNP0F18 */ 132 { 0 } 133}; 134 135static d_open_t mseopen; 136static d_close_t mseclose; 137static d_read_t mseread; 138static d_ioctl_t mseioctl; 139static d_poll_t msepoll; 140 141#define CDEV_MAJOR 27 142static struct cdevsw mse_cdevsw = { 143 /* open */ mseopen, 144 /* close */ mseclose, 145 /* read */ mseread, 146 /* write */ nowrite, 147 /* ioctl */ mseioctl, 148 /* poll */ msepoll, 149 /* mmap */ nommap, 150 /* strategy */ nostrategy, 151 /* name */ "mse", 152 /* maj */ CDEV_MAJOR, 153 /* dump */ nodump, 154 /* psize */ nopsize, 155 /* flags */ 0, 156}; 157 158static void mseintr __P((void *)); 159static timeout_t msetimeout; 160 161/* Flags */ 162#define MSESC_OPEN 0x1 163#define MSESC_WANT 0x2 164 165/* and Mouse Types */ 166#define MSE_NONE 0 /* don't move this! */ 167#define MSE_LOGITECH 0x1 168#define MSE_ATIINPORT 0x2 169#define MSE_LOGI_SIG 0xA5 170 171#define MSE_PORTA 0 172#define MSE_PORTB 1 173#define MSE_PORTC 2 174#define MSE_PORTD 3 175#define MSE_IOSIZE 4 176 177#define MSE_UNIT(dev) (minor(dev) >> 1) 178#define MSE_NBLOCKIO(dev) (minor(dev) & 0x1) 179 180/* 181 * Logitech bus mouse definitions 182 */ 183#define MSE_SETUP 0x91 /* What does this mean? */ 184 /* The definition for the control port */ 185 /* is as follows: */ 186 187 /* D7 = Mode set flag (1 = active) */ 188 /* D6,D5 = Mode selection (port A) */ 189 /* 00 = Mode 0 = Basic I/O */ 190 /* 01 = Mode 1 = Strobed I/O */ 191 /* 10 = Mode 2 = Bi-dir bus */ 192 /* D4 = Port A direction (1 = input)*/ 193 /* D3 = Port C (upper 4 bits) */ 194 /* direction. (1 = input) */ 195 /* D2 = Mode selection (port B & C) */ 196 /* 0 = Mode 0 = Basic I/O */ 197 /* 1 = Mode 1 = Strobed I/O */ 198 /* D1 = Port B direction (1 = input)*/ 199 /* D0 = Port C (lower 4 bits) */ 200 /* direction. (1 = input) */ 201 202 /* So 91 means Basic I/O on all 3 ports,*/ 203 /* Port A is an input port, B is an */ 204 /* output port, C is split with upper */ 205 /* 4 bits being an output port and lower*/ 206 /* 4 bits an input port, and enable the */ 207 /* sucker. */ 208 /* Courtesy Intel 8255 databook. Lars */ 209#define MSE_HOLD 0x80 210#define MSE_RXLOW 0x00 211#define MSE_RXHIGH 0x20 212#define MSE_RYLOW 0x40 213#define MSE_RYHIGH 0x60 214#define MSE_DISINTR 0x10 215#define MSE_INTREN 0x00 216 217static int mse_probelogi __P((device_t dev, mse_softc_t *sc)); 218static void mse_disablelogi __P((bus_space_tag_t t, 219 bus_space_handle_t h)); 220static void mse_getlogi __P((bus_space_tag_t t, 221 bus_space_handle_t h, 222 int *dx, int *dy, int *but)); 223static void mse_enablelogi __P((bus_space_tag_t t, 224 bus_space_handle_t h)); 225 226/* 227 * ATI Inport mouse definitions 228 */ 229#define MSE_INPORT_RESET 0x80 230#define MSE_INPORT_STATUS 0x00 231#define MSE_INPORT_DX 0x01 232#define MSE_INPORT_DY 0x02 233#define MSE_INPORT_MODE 0x07 234#define MSE_INPORT_HOLD 0x20 235#define MSE_INPORT_INTREN 0x09 236 237static int mse_probeati __P((device_t dev, mse_softc_t *sc)); 238static void mse_enableati __P((bus_space_tag_t t, 239 bus_space_handle_t h)); 240static void mse_disableati __P((bus_space_tag_t t, 241 bus_space_handle_t h)); 242static void mse_getati __P((bus_space_tag_t t, 243 bus_space_handle_t h, 244 int *dx, int *dy, int *but)); 245 246#define MSEPRI (PZERO + 3) 247 248/* 249 * Table of mouse types. 250 * Keep the Logitech last, since I haven't figured out how to probe it 251 * properly yet. (Someday I'll have the documentation.) 252 */ 253static struct mse_types { 254 int m_type; /* Type of bus mouse */ 255 int (*m_probe) __P((device_t dev, mse_softc_t *sc)); 256 /* Probe routine to test for it */ 257 void (*m_enable) __P((bus_space_tag_t t, bus_space_handle_t h)); 258 /* Start routine */ 259 void (*m_disable) __P((bus_space_tag_t t, bus_space_handle_t h)); 260 /* Disable interrupts routine */ 261 void (*m_get) __P((bus_space_tag_t t, bus_space_handle_t h, 262 int *dx, int *dy, int *but)); 263 /* and get mouse status */ 264 mousehw_t m_hw; /* buttons iftype type model hwid */ 265 mousemode_t m_mode; /* proto rate res accel level size mask */ 266} mse_types[] = { 267 { MSE_ATIINPORT, 268 mse_probeati, mse_enableati, mse_disableati, mse_getati, 269 { 2, MOUSE_IF_INPORT, MOUSE_MOUSE, MOUSE_MODEL_GENERIC, 0, }, 270 { MOUSE_PROTO_INPORT, -1, -1, 0, 0, MOUSE_MSC_PACKETSIZE, 271 { MOUSE_MSC_SYNCMASK, MOUSE_MSC_SYNC, }, }, }, 272 { MSE_LOGITECH, 273 mse_probelogi, mse_enablelogi, mse_disablelogi, mse_getlogi, 274 { 2, MOUSE_IF_BUS, MOUSE_MOUSE, MOUSE_MODEL_GENERIC, 0, }, 275 { MOUSE_PROTO_BUS, -1, -1, 0, 0, MOUSE_MSC_PACKETSIZE, 276 { MOUSE_MSC_SYNCMASK, MOUSE_MSC_SYNC, }, }, }, 277 { 0, }, 278}; 279 280static int 281mse_probe(dev) 282 device_t dev; 283{ 284 mse_softc_t *sc; 285 int error; 286 int rid; 287 int i; 288 289 /* check PnP IDs */ 290 error = ISA_PNP_PROBE(device_get_parent(dev), dev, mse_ids); 291 if (error != ENOENT) 292 return error; 293 294 sc = device_get_softc(dev); 295 rid = 0; 296 sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 297 MSE_IOSIZE, RF_ACTIVE); 298 if (sc->sc_port == NULL) 299 return ENXIO; 300 sc->sc_iot = rman_get_bustag(sc->sc_port); 301 sc->sc_ioh = rman_get_bushandle(sc->sc_port); 302 303 /* 304 * Check for each mouse type in the table. 305 */ 306 i = 0; 307 while (mse_types[i].m_type) { 308 if ((*mse_types[i].m_probe)(dev, sc)) { 309 sc->sc_mousetype = mse_types[i].m_type; 310 sc->sc_enablemouse = mse_types[i].m_enable; 311 sc->sc_disablemouse = mse_types[i].m_disable; 312 sc->sc_getmouse = mse_types[i].m_get; 313 sc->hw = mse_types[i].m_hw; 314 sc->mode = mse_types[i].m_mode; 315 bus_release_resource(dev, SYS_RES_IOPORT, rid, 316 sc->sc_port); 317 device_set_desc(dev, "Bus/InPort Mouse"); 318 return 0; 319 } 320 i++; 321 } 322 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port); 323 return ENXIO; 324} 325 326static int 327mse_attach(dev) 328 device_t dev; 329{ 330 mse_softc_t *sc; 331 int flags; 332 int unit; 333 int rid; 334 335 sc = device_get_softc(dev); 336 unit = device_get_unit(dev); 337 338 rid = 0; 339 sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 340 MSE_IOSIZE, RF_ACTIVE); 341 if (sc->sc_port == NULL) 342 return ENXIO; 343 sc->sc_intr = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, 344 RF_ACTIVE); 345 if (sc->sc_intr == NULL) { 346 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port); 347 return ENXIO; 348 } 349 sc->sc_iot = rman_get_bustag(sc->sc_port); 350 sc->sc_ioh = rman_get_bushandle(sc->sc_port); 351 352 if (BUS_SETUP_INTR(device_get_parent(dev), dev, sc->sc_intr, 353 INTR_TYPE_TTY, mseintr, sc, &sc->sc_ih)) { 354 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port); 355 bus_release_resource(dev, SYS_RES_IRQ, rid, sc->sc_intr); 356 return ENXIO; 357 } 358 359 flags = device_get_flags(dev); 360 sc->mode.accelfactor = (flags & MSE_CONFIG_ACCEL) >> 4; 361 callout_handle_init(&sc->sc_callout); 362 363 sc->sc_dev = make_dev(&mse_cdevsw, unit << 1, 0, 0, 0600, 364 "mse%d", unit); 365 sc->sc_ndev = make_dev(&mse_cdevsw, (unit<<1)+1, 0, 0, 0600, 366 "nmse%d", unit); 367 368 return 0; 369} 370 371static int 372mse_detach(dev) 373 device_t dev; 374{ 375 mse_softc_t *sc; 376 int rid; 377 378 sc = device_get_softc(dev); 379 if (sc->sc_flags & MSESC_OPEN) 380 return EBUSY; 381 382 rid = 0; 383 BUS_TEARDOWN_INTR(device_get_parent(dev), dev, sc->sc_intr, sc->sc_ih); 384 bus_release_resource(dev, SYS_RES_IRQ, rid, sc->sc_intr); 385 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port); 386 387 destroy_dev(sc->sc_dev); 388 destroy_dev(sc->sc_ndev); 389 390 return 0; 391} 392 393/* 394 * Exclusive open the mouse, initialize it and enable interrupts. 395 */ 396static int 397mseopen(dev, flags, fmt, p) 398 dev_t dev; 399 int flags; 400 int fmt; 401 struct proc *p; 402{ 403 mse_softc_t *sc; 404 int s; 405 406 sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev)); 407 if (sc == NULL) 408 return (ENXIO); 409 if (sc->sc_mousetype == MSE_NONE) 410 return (ENXIO); 411 if (sc->sc_flags & MSESC_OPEN) 412 return (EBUSY); 413 sc->sc_flags |= MSESC_OPEN; 414 sc->sc_obuttons = sc->sc_buttons = MOUSE_MSC_BUTTONS; 415 sc->sc_deltax = sc->sc_deltay = 0; 416 sc->sc_bytesread = sc->mode.packetsize = MOUSE_MSC_PACKETSIZE; 417 sc->sc_watchdog = FALSE; 418 sc->sc_callout = timeout(msetimeout, dev, hz*2); 419 sc->mode.level = 0; 420 sc->status.flags = 0; 421 sc->status.button = sc->status.obutton = 0; 422 sc->status.dx = sc->status.dy = sc->status.dz = 0; 423 424 /* 425 * Initialize mouse interface and enable interrupts. 426 */ 427 s = spltty(); 428 (*sc->sc_enablemouse)(sc->sc_iot, sc->sc_ioh); 429 splx(s); 430 return (0); 431} 432 433/* 434 * mseclose: just turn off mouse innterrupts. 435 */ 436static int 437mseclose(dev, flags, fmt, p) 438 dev_t dev; 439 int flags; 440 int fmt; 441 struct proc *p; 442{ 443 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev)); 444 int s; 445 446 untimeout(msetimeout, dev, sc->sc_callout); 447 callout_handle_init(&sc->sc_callout); 448 s = spltty(); 449 (*sc->sc_disablemouse)(sc->sc_iot, sc->sc_ioh); 450 sc->sc_flags &= ~MSESC_OPEN; 451 splx(s); 452 return(0); 453} 454 455/* 456 * mseread: return mouse info using the MSC serial protocol, but without 457 * using bytes 4 and 5. 458 * (Yes this is cheesy, but it makes the X386 server happy, so...) 459 */ 460static int 461mseread(dev, uio, ioflag) 462 dev_t dev; 463 struct uio *uio; 464 int ioflag; 465{ 466 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev)); 467 int xfer, s, error; 468 469 /* 470 * If there are no protocol bytes to be read, set up a new protocol 471 * packet. 472 */ 473 s = spltty(); /* XXX Should be its own spl, but where is imlXX() */ 474 if (sc->sc_bytesread >= sc->mode.packetsize) { 475 while (sc->sc_deltax == 0 && sc->sc_deltay == 0 && 476 (sc->sc_obuttons ^ sc->sc_buttons) == 0) { 477 if (MSE_NBLOCKIO(dev)) { 478 splx(s); 479 return (0); 480 } 481 sc->sc_flags |= MSESC_WANT; 482 error = tsleep((caddr_t)sc, MSEPRI | PCATCH, 483 "mseread", 0); 484 if (error) { 485 splx(s); 486 return (error); 487 } 488 } 489 490 /* 491 * Generate protocol bytes. 492 * For some reason X386 expects 5 bytes but never uses 493 * the fourth or fifth? 494 */ 495 sc->sc_bytes[0] = sc->mode.syncmask[1] 496 | (sc->sc_buttons & ~sc->mode.syncmask[0]); 497 if (sc->sc_deltax > 127) 498 sc->sc_deltax = 127; 499 if (sc->sc_deltax < -127) 500 sc->sc_deltax = -127; 501 sc->sc_deltay = -sc->sc_deltay; /* Otherwise mousey goes wrong way */ 502 if (sc->sc_deltay > 127) 503 sc->sc_deltay = 127; 504 if (sc->sc_deltay < -127) 505 sc->sc_deltay = -127; 506 sc->sc_bytes[1] = sc->sc_deltax; 507 sc->sc_bytes[2] = sc->sc_deltay; 508 sc->sc_bytes[3] = sc->sc_bytes[4] = 0; 509 sc->sc_bytes[5] = sc->sc_bytes[6] = 0; 510 sc->sc_bytes[7] = MOUSE_SYS_EXTBUTTONS; 511 sc->sc_obuttons = sc->sc_buttons; 512 sc->sc_deltax = sc->sc_deltay = 0; 513 sc->sc_bytesread = 0; 514 } 515 splx(s); 516 xfer = min(uio->uio_resid, sc->mode.packetsize - sc->sc_bytesread); 517 error = uiomove(&sc->sc_bytes[sc->sc_bytesread], xfer, uio); 518 if (error) 519 return (error); 520 sc->sc_bytesread += xfer; 521 return(0); 522} 523 524/* 525 * mseioctl: process ioctl commands. 526 */ 527static int 528mseioctl(dev, cmd, addr, flag, p) 529 dev_t dev; 530 u_long cmd; 531 caddr_t addr; 532 int flag; 533 struct proc *p; 534{ 535 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev)); 536 mousestatus_t status; 537 int err = 0; 538 int s; 539 540 switch (cmd) { 541 542 case MOUSE_GETHWINFO: 543 s = spltty(); 544 *(mousehw_t *)addr = sc->hw; 545 if (sc->mode.level == 0) 546 ((mousehw_t *)addr)->model = MOUSE_MODEL_GENERIC; 547 splx(s); 548 break; 549 550 case MOUSE_GETMODE: 551 s = spltty(); 552 *(mousemode_t *)addr = sc->mode; 553 switch (sc->mode.level) { 554 case 0: 555 break; 556 case 1: 557 ((mousemode_t *)addr)->protocol = MOUSE_PROTO_SYSMOUSE; 558 ((mousemode_t *)addr)->syncmask[0] = MOUSE_SYS_SYNCMASK; 559 ((mousemode_t *)addr)->syncmask[1] = MOUSE_SYS_SYNC; 560 break; 561 } 562 splx(s); 563 break; 564 565 case MOUSE_SETMODE: 566 switch (((mousemode_t *)addr)->level) { 567 case 0: 568 case 1: 569 break; 570 default: 571 return (EINVAL); 572 } 573 if (((mousemode_t *)addr)->accelfactor < -1) 574 return (EINVAL); 575 else if (((mousemode_t *)addr)->accelfactor >= 0) 576 sc->mode.accelfactor = 577 ((mousemode_t *)addr)->accelfactor; 578 sc->mode.level = ((mousemode_t *)addr)->level; 579 switch (sc->mode.level) { 580 case 0: 581 sc->sc_bytesread = sc->mode.packetsize 582 = MOUSE_MSC_PACKETSIZE; 583 break; 584 case 1: 585 sc->sc_bytesread = sc->mode.packetsize 586 = MOUSE_SYS_PACKETSIZE; 587 break; 588 } 589 break; 590 591 case MOUSE_GETLEVEL: 592 *(int *)addr = sc->mode.level; 593 break; 594 595 case MOUSE_SETLEVEL: 596 switch (*(int *)addr) { 597 case 0: 598 sc->mode.level = *(int *)addr; 599 sc->sc_bytesread = sc->mode.packetsize 600 = MOUSE_MSC_PACKETSIZE; 601 break; 602 case 1: 603 sc->mode.level = *(int *)addr; 604 sc->sc_bytesread = sc->mode.packetsize 605 = MOUSE_SYS_PACKETSIZE; 606 break; 607 default: 608 return (EINVAL); 609 } 610 break; 611 612 case MOUSE_GETSTATUS: 613 s = spltty(); 614 status = sc->status; 615 sc->status.flags = 0; 616 sc->status.obutton = sc->status.button; 617 sc->status.button = 0; 618 sc->status.dx = 0; 619 sc->status.dy = 0; 620 sc->status.dz = 0; 621 splx(s); 622 *(mousestatus_t *)addr = status; 623 break; 624 625 case MOUSE_READSTATE: 626 case MOUSE_READDATA: 627 return (ENODEV); 628 629#if (defined(MOUSE_GETVARS)) 630 case MOUSE_GETVARS: 631 case MOUSE_SETVARS: 632 return (ENODEV); 633#endif 634 635 default: 636 return (ENOTTY); 637 } 638 return (err); 639} 640 641/* 642 * msepoll: check for mouse input to be processed. 643 */ 644static int 645msepoll(dev, events, p) 646 dev_t dev; 647 int events; 648 struct proc *p; 649{ 650 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev)); 651 int s; 652 int revents = 0; 653 654 s = spltty(); 655 if (events & (POLLIN | POLLRDNORM)) { 656 if (sc->sc_bytesread != sc->mode.packetsize || 657 sc->sc_deltax != 0 || sc->sc_deltay != 0 || 658 (sc->sc_obuttons ^ sc->sc_buttons) != 0) 659 revents |= events & (POLLIN | POLLRDNORM); 660 else { 661 /* 662 * Since this is an exclusive open device, any previous 663 * proc pointer is trash now, so we can just assign it. 664 */ 665 selrecord(p, &sc->sc_selp); 666 } 667 } 668 splx(s); 669 return (revents); 670} 671 672/* 673 * msetimeout: watchdog timer routine. 674 */ 675static void 676msetimeout(arg) 677 void *arg; 678{ 679 dev_t dev; 680 mse_softc_t *sc; 681 682 dev = (dev_t)arg; 683 sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev)); 684 if (sc->sc_watchdog) { 685 if (bootverbose) 686 printf("mse%d: lost interrupt?\n", MSE_UNIT(dev)); 687 mseintr(sc); 688 } 689 sc->sc_watchdog = TRUE; 690 sc->sc_callout = timeout(msetimeout, dev, hz); 691} 692 693/* 694 * mseintr: update mouse status. sc_deltax and sc_deltay are accumulative. 695 */ 696static void 697mseintr(arg) 698 void *arg; 699{ 700 /* 701 * the table to turn MouseSystem button bits (MOUSE_MSC_BUTTON?UP) 702 * into `mousestatus' button bits (MOUSE_BUTTON?DOWN). 703 */ 704 static int butmap[8] = { 705 0, 706 MOUSE_BUTTON3DOWN, 707 MOUSE_BUTTON2DOWN, 708 MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN, 709 MOUSE_BUTTON1DOWN, 710 MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN, 711 MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN, 712 MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN 713 }; 714 mse_softc_t *sc = arg; 715 int dx, dy, but; 716 int sign; 717 718#ifdef DEBUG 719 static int mse_intrcnt = 0; 720 if((mse_intrcnt++ % 10000) == 0) 721 printf("mseintr\n"); 722#endif /* DEBUG */ 723 if ((sc->sc_flags & MSESC_OPEN) == 0) 724 return; 725 726 (*sc->sc_getmouse)(sc->sc_iot, sc->sc_ioh, &dx, &dy, &but); 727 if (sc->mode.accelfactor > 0) { 728 sign = (dx < 0); 729 dx = dx * dx / sc->mode.accelfactor; 730 if (dx == 0) 731 dx = 1; 732 if (sign) 733 dx = -dx; 734 sign = (dy < 0); 735 dy = dy * dy / sc->mode.accelfactor; 736 if (dy == 0) 737 dy = 1; 738 if (sign) 739 dy = -dy; 740 } 741 sc->sc_deltax += dx; 742 sc->sc_deltay += dy; 743 sc->sc_buttons = but; 744 745 but = butmap[~but & MOUSE_MSC_BUTTONS]; 746 sc->status.dx += dx; 747 sc->status.dy += dy; 748 sc->status.flags |= ((dx || dy) ? MOUSE_POSCHANGED : 0) 749 | (sc->status.button ^ but); 750 sc->status.button = but; 751 752 sc->sc_watchdog = FALSE; 753 754 /* 755 * If mouse state has changed, wake up anyone wanting to know. 756 */ 757 if (sc->sc_deltax != 0 || sc->sc_deltay != 0 || 758 (sc->sc_obuttons ^ sc->sc_buttons) != 0) { 759 if (sc->sc_flags & MSESC_WANT) { 760 sc->sc_flags &= ~MSESC_WANT; 761 wakeup((caddr_t)sc); 762 } 763 selwakeup(&sc->sc_selp); 764 } 765} 766 767/* 768 * Routines for the Logitech mouse. 769 */ 770/* 771 * Test for a Logitech bus mouse and return 1 if it is. 772 * (until I know how to use the signature port properly, just disable 773 * interrupts and return 1) 774 */ 775static int 776mse_probelogi(dev, sc) 777 device_t dev; 778 mse_softc_t *sc; 779{ 780 781 int sig; 782 783 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSE_PORTD, MSE_SETUP); 784 /* set the signature port */ 785 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSE_PORTB, MSE_LOGI_SIG); 786 787 DELAY(30000); /* 30 ms delay */ 788 sig = bus_space_read_1(sc->sc_iot, sc->sc_ioh, MSE_PORTB) & 0xFF; 789 if (sig == MSE_LOGI_SIG) { 790 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSE_PORTC, 791 MSE_DISINTR); 792 return(1); 793 } else { 794 if (bootverbose) 795 device_printf(dev, "wrong signature %x\n", sig); 796 return(0); 797 } 798} 799 800/* 801 * Initialize Logitech mouse and enable interrupts. 802 */ 803static void 804mse_enablelogi(tag, handle) 805 bus_space_tag_t tag; 806 bus_space_handle_t handle; 807{ 808 int dx, dy, but; 809 810 bus_space_write_1(tag, handle, MSE_PORTD, MSE_SETUP); 811 mse_getlogi(tag, handle, &dx, &dy, &but); 812} 813 814/* 815 * Disable interrupts for Logitech mouse. 816 */ 817static void 818mse_disablelogi(tag, handle) 819 bus_space_tag_t tag; 820 bus_space_handle_t handle; 821{ 822 823 bus_space_write_1(tag, handle, MSE_PORTC, MSE_DISINTR); 824} 825 826/* 827 * Get the current dx, dy and button up/down state. 828 */ 829static void 830mse_getlogi(tag, handle, dx, dy, but) 831 bus_space_tag_t tag; 832 bus_space_handle_t handle; 833 int *dx; 834 int *dy; 835 int *but; 836{ 837 register char x, y; 838 839 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RXLOW); 840 x = bus_space_read_1(tag, handle, MSE_PORTA); 841 *but = (x >> 5) & MOUSE_MSC_BUTTONS; 842 x &= 0xf; 843 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RXHIGH); 844 x |= (bus_space_read_1(tag, handle, MSE_PORTA) << 4); 845 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RYLOW); 846 y = (bus_space_read_1(tag, handle, MSE_PORTA) & 0xf); 847 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RYHIGH); 848 y |= (bus_space_read_1(tag, handle, MSE_PORTA) << 4); 849 *dx = x; 850 *dy = y; 851 bus_space_write_1(tag, handle, MSE_PORTC, MSE_INTREN); 852} 853 854/* 855 * Routines for the ATI Inport bus mouse. 856 */ 857/* 858 * Test for a ATI Inport bus mouse and return 1 if it is. 859 * (do not enable interrupts) 860 */ 861static int 862mse_probeati(dev, sc) 863 device_t dev; 864 mse_softc_t *sc; 865{ 866 int i; 867 868 for (i = 0; i < 2; i++) 869 if (bus_space_read_1(sc->sc_iot, sc->sc_ioh, MSE_PORTC) == 0xde) 870 return (1); 871 return (0); 872} 873 874/* 875 * Initialize ATI Inport mouse and enable interrupts. 876 */ 877static void 878mse_enableati(tag, handle) 879 bus_space_tag_t tag; 880 bus_space_handle_t handle; 881{ 882 883 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_RESET); 884 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE); 885 bus_space_write_1(tag, handle, MSE_PORTB, MSE_INPORT_INTREN); 886} 887 888/* 889 * Disable interrupts for ATI Inport mouse. 890 */ 891static void 892mse_disableati(tag, handle) 893 bus_space_tag_t tag; 894 bus_space_handle_t handle; 895{ 896 897 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE); 898 bus_space_write_1(tag, handle, MSE_PORTB, 0); 899} 900 901/* 902 * Get current dx, dy and up/down button state. 903 */ 904static void 905mse_getati(tag, handle, dx, dy, but) 906 bus_space_tag_t tag; 907 bus_space_handle_t handle; 908 int *dx; 909 int *dy; 910 int *but; 911{ 912 register char byte; 913 914 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE); 915 bus_space_write_1(tag, handle, MSE_PORTB, MSE_INPORT_HOLD); 916 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_STATUS); 917 *but = ~bus_space_read_1(tag, handle, MSE_PORTB) & MOUSE_MSC_BUTTONS; 918 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_DX); 919 byte = bus_space_read_1(tag, handle, MSE_PORTB); 920 *dx = byte; 921 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_DY); 922 byte = bus_space_read_1(tag, handle, MSE_PORTB); 923 *dy = byte; 924 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE); 925 bus_space_write_1(tag, handle, MSE_PORTB, MSE_INPORT_INTREN); 926} 927