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sys/i386/isa/mse.c
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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: releng/5.1/sys/i386/isa/mse.c 111815 2003-03-03 12:15:54Z phk $ 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 */ 73 typedef 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)(bus_space_tag_t t, 83 bus_space_handle_t h); 84 void (*sc_disablemouse)(bus_space_tag_t t, 85 bus_space_handle_t h); 86 void (*sc_getmouse)(bus_space_tag_t t, bus_space_handle_t h, 87 int *dx, int *dy, int *but); 88 int sc_deltax; 89 int sc_deltay; 90 int sc_obuttons; 91 int sc_buttons; 92 int sc_bytesread; 93 u_char sc_bytes[MOUSE_SYS_PACKETSIZE]; 94 struct callout_handle sc_callout; 95 int sc_watchdog; 96 dev_t sc_dev; 97 dev_t sc_ndev; 98 mousehw_t hw; 99 mousemode_t mode; 100 mousestatus_t status; 101 } mse_softc_t; 102 103 static devclass_t mse_devclass; 104 105 static int mse_probe(device_t dev); 106 static int mse_attach(device_t dev); 107 static int mse_detach(device_t dev); 108 109 static device_method_t mse_methods[] = { 110 DEVMETHOD(device_probe, mse_probe), 111 DEVMETHOD(device_attach, mse_attach), 112 DEVMETHOD(device_detach, mse_detach), 113 { 0, 0 } 114 }; 115 116 static driver_t mse_driver = { 117 "mse", 118 mse_methods, 119 sizeof(mse_softc_t), 120 }; 121 122 DRIVER_MODULE(mse, isa, mse_driver, mse_devclass, 0, 0); 123 124 static struct isa_pnp_id mse_ids[] = { 125 { 0x000fd041, "Bus mouse" }, /* PNP0F00 */ 126 { 0x020fd041, "InPort mouse" }, /* PNP0F02 */ 127 { 0x0d0fd041, "InPort mouse compatible" }, /* PNP0F0D */ 128 { 0x110fd041, "Bus mouse compatible" }, /* PNP0F11 */ 129 { 0x150fd041, "Logitech bus mouse" }, /* PNP0F15 */ 130 { 0x180fd041, "Logitech bus mouse compatible" },/* PNP0F18 */ 131 { 0 } 132 }; 133 134 static d_open_t mseopen; 135 static d_close_t mseclose; 136 static d_read_t mseread; 137 static d_ioctl_t mseioctl; 138 static d_poll_t msepoll; 139 140 #define CDEV_MAJOR 27 141 static struct cdevsw mse_cdevsw = { 142 .d_open = mseopen, 143 .d_close = mseclose, 144 .d_read = mseread, 145 .d_ioctl = mseioctl, 146 .d_poll = msepoll, 147 .d_name = "mse", 148 .d_maj = CDEV_MAJOR, 149 }; 150 151 static void mseintr(void *); 152 static timeout_t msetimeout; 153 154 /* Flags */ 155 #define MSESC_OPEN 0x1 156 #define MSESC_WANT 0x2 157 158 /* and Mouse Types */ 159 #define MSE_NONE 0 /* don't move this! */ 160 #define MSE_LOGITECH 0x1 161 #define MSE_ATIINPORT 0x2 162 #define MSE_LOGI_SIG 0xA5 163 164 #define MSE_PORTA 0 165 #define MSE_PORTB 1 166 #define MSE_PORTC 2 167 #define MSE_PORTD 3 168 #define MSE_IOSIZE 4 169 170 #define MSE_UNIT(dev) (minor(dev) >> 1) 171 #define MSE_NBLOCKIO(dev) (minor(dev) & 0x1) 172 173 /* 174 * Logitech bus mouse definitions 175 */ 176 #define MSE_SETUP 0x91 /* What does this mean? */ 177 /* The definition for the control port */ 178 /* is as follows: */ 179 180 /* D7 = Mode set flag (1 = active) */ 181 /* D6,D5 = Mode selection (port A) */ 182 /* 00 = Mode 0 = Basic I/O */ 183 /* 01 = Mode 1 = Strobed I/O */ 184 /* 10 = Mode 2 = Bi-dir bus */ 185 /* D4 = Port A direction (1 = input)*/ 186 /* D3 = Port C (upper 4 bits) */ 187 /* direction. (1 = input) */ 188 /* D2 = Mode selection (port B & C) */ 189 /* 0 = Mode 0 = Basic I/O */ 190 /* 1 = Mode 1 = Strobed I/O */ 191 /* D1 = Port B direction (1 = input)*/ 192 /* D0 = Port C (lower 4 bits) */ 193 /* direction. (1 = input) */ 194 195 /* So 91 means Basic I/O on all 3 ports,*/ 196 /* Port A is an input port, B is an */ 197 /* output port, C is split with upper */ 198 /* 4 bits being an output port and lower*/ 199 /* 4 bits an input port, and enable the */ 200 /* sucker. */ 201 /* Courtesy Intel 8255 databook. Lars */ 202 #define MSE_HOLD 0x80 203 #define MSE_RXLOW 0x00 204 #define MSE_RXHIGH 0x20 205 #define MSE_RYLOW 0x40 206 #define MSE_RYHIGH 0x60 207 #define MSE_DISINTR 0x10 208 #define MSE_INTREN 0x00 209 210 static int mse_probelogi(device_t dev, mse_softc_t *sc); 211 static void mse_disablelogi(bus_space_tag_t t, 212 bus_space_handle_t h); 213 static void mse_getlogi(bus_space_tag_t t, bus_space_handle_t h, 214 int *dx, int *dy, int *but); 215 static void mse_enablelogi(bus_space_tag_t t, 216 bus_space_handle_t h); 217 218 /* 219 * ATI Inport mouse definitions 220 */ 221 #define MSE_INPORT_RESET 0x80 222 #define MSE_INPORT_STATUS 0x00 223 #define MSE_INPORT_DX 0x01 224 #define MSE_INPORT_DY 0x02 225 #define MSE_INPORT_MODE 0x07 226 #define MSE_INPORT_HOLD 0x20 227 #define MSE_INPORT_INTREN 0x09 228 229 static int mse_probeati(device_t dev, mse_softc_t *sc); 230 static void mse_enableati(bus_space_tag_t t, bus_space_handle_t h); 231 static void mse_disableati(bus_space_tag_t t, bus_space_handle_t h); 232 static void mse_getati(bus_space_tag_t t, bus_space_handle_t h, 233 int *dx, int *dy, int *but); 234 235 #define MSEPRI (PZERO + 3) 236 237 /* 238 * Table of mouse types. 239 * Keep the Logitech last, since I haven't figured out how to probe it 240 * properly yet. (Someday I'll have the documentation.) 241 */ 242 static struct mse_types { 243 int m_type; /* Type of bus mouse */ 244 int (*m_probe)(device_t dev, mse_softc_t *sc); 245 /* Probe routine to test for it */ 246 void (*m_enable)(bus_space_tag_t t, bus_space_handle_t h); 247 /* Start routine */ 248 void (*m_disable)(bus_space_tag_t t, bus_space_handle_t h); 249 /* Disable interrupts routine */ 250 void (*m_get)(bus_space_tag_t t, bus_space_handle_t h, int *dx, 251 int *dy, int *but); 252 /* and get mouse status */ 253 mousehw_t m_hw; /* buttons iftype type model hwid */ 254 mousemode_t m_mode; /* proto rate res accel level size mask */ 255 } mse_types[] = { 256 { MSE_ATIINPORT, 257 mse_probeati, mse_enableati, mse_disableati, mse_getati, 258 { 2, MOUSE_IF_INPORT, MOUSE_MOUSE, MOUSE_MODEL_GENERIC, 0, }, 259 { MOUSE_PROTO_INPORT, -1, -1, 0, 0, MOUSE_MSC_PACKETSIZE, 260 { MOUSE_MSC_SYNCMASK, MOUSE_MSC_SYNC, }, }, }, 261 { MSE_LOGITECH, 262 mse_probelogi, mse_enablelogi, mse_disablelogi, mse_getlogi, 263 { 2, MOUSE_IF_BUS, MOUSE_MOUSE, MOUSE_MODEL_GENERIC, 0, }, 264 { MOUSE_PROTO_BUS, -1, -1, 0, 0, MOUSE_MSC_PACKETSIZE, 265 { MOUSE_MSC_SYNCMASK, MOUSE_MSC_SYNC, }, }, }, 266 { 0, }, 267 }; 268 269 static int 270 mse_probe(dev) 271 device_t dev; 272 { 273 mse_softc_t *sc; 274 int error; 275 int rid; 276 int i; 277 278 /* check PnP IDs */ 279 error = ISA_PNP_PROBE(device_get_parent(dev), dev, mse_ids); 280 if (error == ENXIO) 281 return error; 282 283 sc = device_get_softc(dev); 284 rid = 0; 285 sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 286 MSE_IOSIZE, RF_ACTIVE); 287 if (sc->sc_port == NULL) 288 return ENXIO; 289 sc->sc_iot = rman_get_bustag(sc->sc_port); 290 sc->sc_ioh = rman_get_bushandle(sc->sc_port); 291 292 /* 293 * Check for each mouse type in the table. 294 */ 295 i = 0; 296 while (mse_types[i].m_type) { 297 if ((*mse_types[i].m_probe)(dev, sc)) { 298 sc->sc_mousetype = mse_types[i].m_type; 299 sc->sc_enablemouse = mse_types[i].m_enable; 300 sc->sc_disablemouse = mse_types[i].m_disable; 301 sc->sc_getmouse = mse_types[i].m_get; 302 sc->hw = mse_types[i].m_hw; 303 sc->mode = mse_types[i].m_mode; 304 bus_release_resource(dev, SYS_RES_IOPORT, rid, 305 sc->sc_port); 306 device_set_desc(dev, "Bus/InPort Mouse"); 307 return 0; 308 } 309 i++; 310 } 311 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port); 312 return ENXIO; 313 } 314 315 static int 316 mse_attach(dev) 317 device_t dev; 318 { 319 mse_softc_t *sc; 320 int flags; 321 int unit; 322 int rid; 323 324 sc = device_get_softc(dev); 325 unit = device_get_unit(dev); 326 327 rid = 0; 328 sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 329 MSE_IOSIZE, RF_ACTIVE); 330 if (sc->sc_port == NULL) 331 return ENXIO; 332 sc->sc_intr = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, 333 RF_ACTIVE); 334 if (sc->sc_intr == NULL) { 335 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port); 336 return ENXIO; 337 } 338 sc->sc_iot = rman_get_bustag(sc->sc_port); 339 sc->sc_ioh = rman_get_bushandle(sc->sc_port); 340 341 if (BUS_SETUP_INTR(device_get_parent(dev), dev, sc->sc_intr, 342 INTR_TYPE_TTY, mseintr, sc, &sc->sc_ih)) { 343 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port); 344 bus_release_resource(dev, SYS_RES_IRQ, rid, sc->sc_intr); 345 return ENXIO; 346 } 347 348 flags = device_get_flags(dev); 349 sc->mode.accelfactor = (flags & MSE_CONFIG_ACCEL) >> 4; 350 callout_handle_init(&sc->sc_callout); 351 352 sc->sc_dev = make_dev(&mse_cdevsw, unit << 1, 0, 0, 0600, 353 "mse%d", unit); 354 sc->sc_ndev = make_dev(&mse_cdevsw, (unit<<1)+1, 0, 0, 0600, 355 "nmse%d", unit); 356 357 return 0; 358 } 359 360 static int 361 mse_detach(dev) 362 device_t dev; 363 { 364 mse_softc_t *sc; 365 int rid; 366 367 sc = device_get_softc(dev); 368 if (sc->sc_flags & MSESC_OPEN) 369 return EBUSY; 370 371 rid = 0; 372 BUS_TEARDOWN_INTR(device_get_parent(dev), dev, sc->sc_intr, sc->sc_ih); 373 bus_release_resource(dev, SYS_RES_IRQ, rid, sc->sc_intr); 374 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port); 375 376 destroy_dev(sc->sc_dev); 377 destroy_dev(sc->sc_ndev); 378 379 return 0; 380 } 381 382 /* 383 * Exclusive open the mouse, initialize it and enable interrupts. 384 */ 385 static int 386 mseopen(dev, flags, fmt, td) 387 dev_t dev; 388 int flags; 389 int fmt; 390 struct thread *td; 391 { 392 mse_softc_t *sc; 393 int s; 394 395 sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev)); 396 if (sc == NULL) 397 return (ENXIO); 398 if (sc->sc_mousetype == MSE_NONE) 399 return (ENXIO); 400 if (sc->sc_flags & MSESC_OPEN) 401 return (EBUSY); 402 sc->sc_flags |= MSESC_OPEN; 403 sc->sc_obuttons = sc->sc_buttons = MOUSE_MSC_BUTTONS; 404 sc->sc_deltax = sc->sc_deltay = 0; 405 sc->sc_bytesread = sc->mode.packetsize = MOUSE_MSC_PACKETSIZE; 406 sc->sc_watchdog = FALSE; 407 sc->sc_callout = timeout(msetimeout, dev, hz*2); 408 sc->mode.level = 0; 409 sc->status.flags = 0; 410 sc->status.button = sc->status.obutton = 0; 411 sc->status.dx = sc->status.dy = sc->status.dz = 0; 412 413 /* 414 * Initialize mouse interface and enable interrupts. 415 */ 416 s = spltty(); 417 (*sc->sc_enablemouse)(sc->sc_iot, sc->sc_ioh); 418 splx(s); 419 return (0); 420 } 421 422 /* 423 * mseclose: just turn off mouse innterrupts. 424 */ 425 static int 426 mseclose(dev, flags, fmt, td) 427 dev_t dev; 428 int flags; 429 int fmt; 430 struct thread *td; 431 { 432 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev)); 433 int s; 434 435 untimeout(msetimeout, dev, sc->sc_callout); 436 callout_handle_init(&sc->sc_callout); 437 s = spltty(); 438 (*sc->sc_disablemouse)(sc->sc_iot, sc->sc_ioh); 439 sc->sc_flags &= ~MSESC_OPEN; 440 splx(s); 441 return(0); 442 } 443 444 /* 445 * mseread: return mouse info using the MSC serial protocol, but without 446 * using bytes 4 and 5. 447 * (Yes this is cheesy, but it makes the X386 server happy, so...) 448 */ 449 static int 450 mseread(dev, uio, ioflag) 451 dev_t dev; 452 struct uio *uio; 453 int ioflag; 454 { 455 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev)); 456 int xfer, s, error; 457 458 /* 459 * If there are no protocol bytes to be read, set up a new protocol 460 * packet. 461 */ 462 s = spltty(); /* XXX Should be its own spl, but where is imlXX() */ 463 if (sc->sc_bytesread >= sc->mode.packetsize) { 464 while (sc->sc_deltax == 0 && sc->sc_deltay == 0 && 465 (sc->sc_obuttons ^ sc->sc_buttons) == 0) { 466 if (MSE_NBLOCKIO(dev)) { 467 splx(s); 468 return (0); 469 } 470 sc->sc_flags |= MSESC_WANT; 471 error = tsleep(sc, MSEPRI | PCATCH, 472 "mseread", 0); 473 if (error) { 474 splx(s); 475 return (error); 476 } 477 } 478 479 /* 480 * Generate protocol bytes. 481 * For some reason X386 expects 5 bytes but never uses 482 * the fourth or fifth? 483 */ 484 sc->sc_bytes[0] = sc->mode.syncmask[1] 485 | (sc->sc_buttons & ~sc->mode.syncmask[0]); 486 if (sc->sc_deltax > 127) 487 sc->sc_deltax = 127; 488 if (sc->sc_deltax < -127) 489 sc->sc_deltax = -127; 490 sc->sc_deltay = -sc->sc_deltay; /* Otherwise mousey goes wrong way */ 491 if (sc->sc_deltay > 127) 492 sc->sc_deltay = 127; 493 if (sc->sc_deltay < -127) 494 sc->sc_deltay = -127; 495 sc->sc_bytes[1] = sc->sc_deltax; 496 sc->sc_bytes[2] = sc->sc_deltay; 497 sc->sc_bytes[3] = sc->sc_bytes[4] = 0; 498 sc->sc_bytes[5] = sc->sc_bytes[6] = 0; 499 sc->sc_bytes[7] = MOUSE_SYS_EXTBUTTONS; 500 sc->sc_obuttons = sc->sc_buttons; 501 sc->sc_deltax = sc->sc_deltay = 0; 502 sc->sc_bytesread = 0; 503 } 504 splx(s); 505 xfer = min(uio->uio_resid, sc->mode.packetsize - sc->sc_bytesread); 506 error = uiomove(&sc->sc_bytes[sc->sc_bytesread], xfer, uio); 507 if (error) 508 return (error); 509 sc->sc_bytesread += xfer; 510 return(0); 511 } 512 513 /* 514 * mseioctl: process ioctl commands. 515 */ 516 static int 517 mseioctl(dev, cmd, addr, flag, td) 518 dev_t dev; 519 u_long cmd; 520 caddr_t addr; 521 int flag; 522 struct thread *td; 523 { 524 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev)); 525 mousestatus_t status; 526 int err = 0; 527 int s; 528 529 switch (cmd) { 530 531 case MOUSE_GETHWINFO: 532 s = spltty(); 533 *(mousehw_t *)addr = sc->hw; 534 if (sc->mode.level == 0) 535 ((mousehw_t *)addr)->model = MOUSE_MODEL_GENERIC; 536 splx(s); 537 break; 538 539 case MOUSE_GETMODE: 540 s = spltty(); 541 *(mousemode_t *)addr = sc->mode; 542 switch (sc->mode.level) { 543 case 0: 544 break; 545 case 1: 546 ((mousemode_t *)addr)->protocol = MOUSE_PROTO_SYSMOUSE; 547 ((mousemode_t *)addr)->syncmask[0] = MOUSE_SYS_SYNCMASK; 548 ((mousemode_t *)addr)->syncmask[1] = MOUSE_SYS_SYNC; 549 break; 550 } 551 splx(s); 552 break; 553 554 case MOUSE_SETMODE: 555 switch (((mousemode_t *)addr)->level) { 556 case 0: 557 case 1: 558 break; 559 default: 560 return (EINVAL); 561 } 562 if (((mousemode_t *)addr)->accelfactor < -1) 563 return (EINVAL); 564 else if (((mousemode_t *)addr)->accelfactor >= 0) 565 sc->mode.accelfactor = 566 ((mousemode_t *)addr)->accelfactor; 567 sc->mode.level = ((mousemode_t *)addr)->level; 568 switch (sc->mode.level) { 569 case 0: 570 sc->sc_bytesread = sc->mode.packetsize 571 = MOUSE_MSC_PACKETSIZE; 572 break; 573 case 1: 574 sc->sc_bytesread = sc->mode.packetsize 575 = MOUSE_SYS_PACKETSIZE; 576 break; 577 } 578 break; 579 580 case MOUSE_GETLEVEL: 581 *(int *)addr = sc->mode.level; 582 break; 583 584 case MOUSE_SETLEVEL: 585 switch (*(int *)addr) { 586 case 0: 587 sc->mode.level = *(int *)addr; 588 sc->sc_bytesread = sc->mode.packetsize 589 = MOUSE_MSC_PACKETSIZE; 590 break; 591 case 1: 592 sc->mode.level = *(int *)addr; 593 sc->sc_bytesread = sc->mode.packetsize 594 = MOUSE_SYS_PACKETSIZE; 595 break; 596 default: 597 return (EINVAL); 598 } 599 break; 600 601 case MOUSE_GETSTATUS: 602 s = spltty(); 603 status = sc->status; 604 sc->status.flags = 0; 605 sc->status.obutton = sc->status.button; 606 sc->status.button = 0; 607 sc->status.dx = 0; 608 sc->status.dy = 0; 609 sc->status.dz = 0; 610 splx(s); 611 *(mousestatus_t *)addr = status; 612 break; 613 614 case MOUSE_READSTATE: 615 case MOUSE_READDATA: 616 return (ENODEV); 617 618 #if (defined(MOUSE_GETVARS)) 619 case MOUSE_GETVARS: 620 case MOUSE_SETVARS: 621 return (ENODEV); 622 #endif 623 624 default: 625 return (ENOTTY); 626 } 627 return (err); 628 } 629 630 /* 631 * msepoll: check for mouse input to be processed. 632 */ 633 static int 634 msepoll(dev, events, td) 635 dev_t dev; 636 int events; 637 struct thread *td; 638 { 639 mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev)); 640 int s; 641 int revents = 0; 642 643 s = spltty(); 644 if (events & (POLLIN | POLLRDNORM)) { 645 if (sc->sc_bytesread != sc->mode.packetsize || 646 sc->sc_deltax != 0 || sc->sc_deltay != 0 || 647 (sc->sc_obuttons ^ sc->sc_buttons) != 0) 648 revents |= events & (POLLIN | POLLRDNORM); 649 else { 650 /* 651 * Since this is an exclusive open device, any previous 652 * proc pointer is trash now, so we can just assign it. 653 */ 654 selrecord(td, &sc->sc_selp); 655 } 656 } 657 splx(s); 658 return (revents); 659 } 660 661 /* 662 * msetimeout: watchdog timer routine. 663 */ 664 static void 665 msetimeout(arg) 666 void *arg; 667 { 668 dev_t dev; 669 mse_softc_t *sc; 670 671 dev = (dev_t)arg; 672 sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev)); 673 if (sc->sc_watchdog) { 674 if (bootverbose) 675 printf("mse%d: lost interrupt?\n", MSE_UNIT(dev)); 676 mseintr(sc); 677 } 678 sc->sc_watchdog = TRUE; 679 sc->sc_callout = timeout(msetimeout, dev, hz); 680 } 681 682 /* 683 * mseintr: update mouse status. sc_deltax and sc_deltay are accumulative. 684 */ 685 static void 686 mseintr(arg) 687 void *arg; 688 { 689 /* 690 * the table to turn MouseSystem button bits (MOUSE_MSC_BUTTON?UP) 691 * into `mousestatus' button bits (MOUSE_BUTTON?DOWN). 692 */ 693 static int butmap[8] = { 694 0, 695 MOUSE_BUTTON3DOWN, 696 MOUSE_BUTTON2DOWN, 697 MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN, 698 MOUSE_BUTTON1DOWN, 699 MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN, 700 MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN, 701 MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN 702 }; 703 mse_softc_t *sc = arg; 704 int dx, dy, but; 705 int sign; 706 707 #ifdef DEBUG 708 static int mse_intrcnt = 0; 709 if((mse_intrcnt++ % 10000) == 0) 710 printf("mseintr\n"); 711 #endif /* DEBUG */ 712 if ((sc->sc_flags & MSESC_OPEN) == 0) 713 return; 714 715 (*sc->sc_getmouse)(sc->sc_iot, sc->sc_ioh, &dx, &dy, &but); 716 if (sc->mode.accelfactor > 0) { 717 sign = (dx < 0); 718 dx = dx * dx / sc->mode.accelfactor; 719 if (dx == 0) 720 dx = 1; 721 if (sign) 722 dx = -dx; 723 sign = (dy < 0); 724 dy = dy * dy / sc->mode.accelfactor; 725 if (dy == 0) 726 dy = 1; 727 if (sign) 728 dy = -dy; 729 } 730 sc->sc_deltax += dx; 731 sc->sc_deltay += dy; 732 sc->sc_buttons = but; 733 734 but = butmap[~but & MOUSE_MSC_BUTTONS]; 735 sc->status.dx += dx; 736 sc->status.dy += dy; 737 sc->status.flags |= ((dx || dy) ? MOUSE_POSCHANGED : 0) 738 | (sc->status.button ^ but); 739 sc->status.button = but; 740 741 sc->sc_watchdog = FALSE; 742 743 /* 744 * If mouse state has changed, wake up anyone wanting to know. 745 */ 746 if (sc->sc_deltax != 0 || sc->sc_deltay != 0 || 747 (sc->sc_obuttons ^ sc->sc_buttons) != 0) { 748 if (sc->sc_flags & MSESC_WANT) { 749 sc->sc_flags &= ~MSESC_WANT; 750 wakeup(sc); 751 } 752 selwakeup(&sc->sc_selp); 753 } 754 } 755 756 /* 757 * Routines for the Logitech mouse. 758 */ 759 /* 760 * Test for a Logitech bus mouse and return 1 if it is. 761 * (until I know how to use the signature port properly, just disable 762 * interrupts and return 1) 763 */ 764 static int 765 mse_probelogi(dev, sc) 766 device_t dev; 767 mse_softc_t *sc; 768 { 769 770 int sig; 771 772 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSE_PORTD, MSE_SETUP); 773 /* set the signature port */ 774 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSE_PORTB, MSE_LOGI_SIG); 775 776 DELAY(30000); /* 30 ms delay */ 777 sig = bus_space_read_1(sc->sc_iot, sc->sc_ioh, MSE_PORTB) & 0xFF; 778 if (sig == MSE_LOGI_SIG) { 779 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSE_PORTC, 780 MSE_DISINTR); 781 return(1); 782 } else { 783 if (bootverbose) 784 device_printf(dev, "wrong signature %x\n", sig); 785 return(0); 786 } 787 } 788 789 /* 790 * Initialize Logitech mouse and enable interrupts. 791 */ 792 static void 793 mse_enablelogi(tag, handle) 794 bus_space_tag_t tag; 795 bus_space_handle_t handle; 796 { 797 int dx, dy, but; 798 799 bus_space_write_1(tag, handle, MSE_PORTD, MSE_SETUP); 800 mse_getlogi(tag, handle, &dx, &dy, &but); 801 } 802 803 /* 804 * Disable interrupts for Logitech mouse. 805 */ 806 static void 807 mse_disablelogi(tag, handle) 808 bus_space_tag_t tag; 809 bus_space_handle_t handle; 810 { 811 812 bus_space_write_1(tag, handle, MSE_PORTC, MSE_DISINTR); 813 } 814 815 /* 816 * Get the current dx, dy and button up/down state. 817 */ 818 static void 819 mse_getlogi(tag, handle, dx, dy, but) 820 bus_space_tag_t tag; 821 bus_space_handle_t handle; 822 int *dx; 823 int *dy; 824 int *but; 825 { 826 register char x, y; 827 828 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RXLOW); 829 x = bus_space_read_1(tag, handle, MSE_PORTA); 830 *but = (x >> 5) & MOUSE_MSC_BUTTONS; 831 x &= 0xf; 832 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RXHIGH); 833 x |= (bus_space_read_1(tag, handle, MSE_PORTA) << 4); 834 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RYLOW); 835 y = (bus_space_read_1(tag, handle, MSE_PORTA) & 0xf); 836 bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RYHIGH); 837 y |= (bus_space_read_1(tag, handle, MSE_PORTA) << 4); 838 *dx = x; 839 *dy = y; 840 bus_space_write_1(tag, handle, MSE_PORTC, MSE_INTREN); 841 } 842 843 /* 844 * Routines for the ATI Inport bus mouse. 845 */ 846 /* 847 * Test for an ATI Inport bus mouse and return 1 if it is. 848 * (do not enable interrupts) 849 */ 850 static int 851 mse_probeati(dev, sc) 852 device_t dev; 853 mse_softc_t *sc; 854 { 855 int i; 856 857 for (i = 0; i < 2; i++) 858 if (bus_space_read_1(sc->sc_iot, sc->sc_ioh, MSE_PORTC) == 0xde) 859 return (1); 860 return (0); 861 } 862 863 /* 864 * Initialize ATI Inport mouse and enable interrupts. 865 */ 866 static void 867 mse_enableati(tag, handle) 868 bus_space_tag_t tag; 869 bus_space_handle_t handle; 870 { 871 872 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_RESET); 873 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE); 874 bus_space_write_1(tag, handle, MSE_PORTB, MSE_INPORT_INTREN); 875 } 876 877 /* 878 * Disable interrupts for ATI Inport mouse. 879 */ 880 static void 881 mse_disableati(tag, handle) 882 bus_space_tag_t tag; 883 bus_space_handle_t handle; 884 { 885 886 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE); 887 bus_space_write_1(tag, handle, MSE_PORTB, 0); 888 } 889 890 /* 891 * Get current dx, dy and up/down button state. 892 */ 893 static void 894 mse_getati(tag, handle, dx, dy, but) 895 bus_space_tag_t tag; 896 bus_space_handle_t handle; 897 int *dx; 898 int *dy; 899 int *but; 900 { 901 register char byte; 902 903 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE); 904 bus_space_write_1(tag, handle, MSE_PORTB, MSE_INPORT_HOLD); 905 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_STATUS); 906 *but = ~bus_space_read_1(tag, handle, MSE_PORTB) & MOUSE_MSC_BUTTONS; 907 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_DX); 908 byte = bus_space_read_1(tag, handle, MSE_PORTB); 909 *dx = byte; 910 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_DY); 911 byte = bus_space_read_1(tag, handle, MSE_PORTB); 912 *dy = byte; 913 bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE); 914 bus_space_write_1(tag, handle, MSE_PORTB, MSE_INPORT_INTREN); 915 }
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