Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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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 15 #include <sys/cdefs.h> 16 __FBSDID("$FreeBSD$"); 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/module.h> 54 #include <sys/bus.h> 55 #include <sys/poll.h> 56 #include <sys/selinfo.h> 57 #include <sys/uio.h> 58 #include <sys/mouse.h> 59 60 #include <machine/bus_pio.h> 61 #include <machine/bus.h> 62 #include <machine/clock.h> 63 #include <machine/resource.h> 64 #include <sys/rman.h> 65 66 #include <isa/isavar.h> 67 68 /* driver configuration flags (config) */ 69 #define MSE_CONFIG_ACCEL 0x00f0 /* acceleration factor */ 70 #define MSE_CONFIG_FLAGS (MSE_CONFIG_ACCEL) 71 72 /* 73 * Software control structure for mouse. The sc_enablemouse(), 74 * sc_disablemouse() and sc_getmouse() routines must be called spl'd(). 75 */ 76 typedef struct mse_softc { 77 int sc_flags; 78 int sc_mousetype; 79 struct selinfo sc_selp; 80 struct resource *sc_port; 81 struct resource *sc_intr; 82 bus_space_tag_t sc_iot; 83 bus_space_handle_t sc_ioh; 84 void *sc_ih; 85 void (*sc_enablemouse)(bus_space_tag_t t, 86 bus_space_handle_t h); 87 void (*sc_disablemouse)(bus_space_tag_t t, 88 bus_space_handle_t h); 89 void (*sc_getmouse)(bus_space_tag_t t, bus_space_handle_t h, 90 int *dx, int *dy, int *but); 91 int sc_deltax; 92 int sc_deltay; 93 int sc_obuttons; 94 int sc_buttons; 95 int sc_bytesread; 96 u_char sc_bytes[MOUSE_SYS_PACKETSIZE]; 97 struct callout_handle sc_callout; 98 int sc_watchdog; 99 struct cdev *sc_dev; 100 struct cdev *sc_ndev; 101 mousehw_t hw; 102 mousemode_t mode; 103 mousestatus_t status; 104 } mse_softc_t; 105 106 static devclass_t mse_devclass; 107 108 static int mse_probe(device_t dev); 109 static int mse_attach(device_t dev); 110 static int mse_detach(device_t dev); 111 112 static device_method_t mse_methods[] = { 113 DEVMETHOD(device_probe, mse_probe), 114 DEVMETHOD(device_attach, mse_attach), 115 DEVMETHOD(device_detach, mse_detach), 116 { 0, 0 } 117 }; 118 119 static driver_t mse_driver = { 120 "mse", 121 mse_methods, 122 sizeof(mse_softc_t), 123 }; 124 125 DRIVER_MODULE(mse, isa, mse_driver, mse_devclass, 0, 0); 126 127 static struct isa_pnp_id mse_ids[] = { 128 { 0x000fd041, "Bus mouse" }, /* PNP0F00 */ 129 { 0x020fd041, "InPort mouse" }, /* PNP0F02 */ 130 { 0x0d0fd041, "InPort mouse compatible" }, /* PNP0F0D */ 131 { 0x110fd041, "Bus mouse compatible" }, /* PNP0F11 */ 132 { 0x150fd041, "Logitech bus mouse" }, /* PNP0F15 */ 133 { 0x180fd041, "Logitech bus mouse compatible" },/* PNP0F18 */ 134 { 0 } 135 }; 136 137 static d_open_t mseopen; 138 static d_close_t mseclose; 139 static d_read_t mseread; 140 static d_ioctl_t mseioctl; 141 static d_poll_t msepoll; 142 143 static struct cdevsw mse_cdevsw = { 144 .d_version = D_VERSION, 145 .d_flags = D_NEEDGIANT, 146 .d_open = mseopen, 147 .d_close = mseclose, 148 .d_read = mseread, 149 .d_ioctl = mseioctl, 150 .d_poll = msepoll, 151 .d_name = "mse", 152 }; 153 154 static void mseintr(void *); 155 static timeout_t msetimeout; 156 157 /* Flags */ 158 #define MSESC_OPEN 0x1 159 #define MSESC_WANT 0x2 160 161 /* and Mouse Types */ 162 #define MSE_NONE 0 /* don't move this! */ 163 #define MSE_LOGITECH 0x1 164 #define MSE_ATIINPORT 0x2 165 #define MSE_LOGI_SIG 0xA5 166 167 #define MSE_PORTA 0 168 #define MSE_PORTB 1 169 #define MSE_PORTC 2 170 #define MSE_PORTD 3 171 #define MSE_IOSIZE 4 172 173 #define MSE_UNIT(dev) (minor(dev) >> 1) 174 #define MSE_NBLOCKIO(dev) (minor(dev) & 0x1) 175 176 /* 177 * Logitech bus mouse definitions 178 */ 179 #define MSE_SETUP 0x91 /* What does this mean? */ 180 /* The definition for the control port */ 181 /* is as follows: */ 182 183 /* D7 = Mode set flag (1 = active) */ 184 /* D6,D5 = Mode selection (port A) */ 185 /* 00 = Mode 0 = Basic I/O */ 186 /* 01 = Mode 1 = Strobed I/O */ 187 /* 10 = Mode 2 = Bi-dir bus */ 188 /* D4 = Port A direction (1 = input)*/ 189 /* D3 = Port C (upper 4 bits) */ 190 /* direction. (1 = input) */ 191 /* D2 = Mode selection (port B & C) */ 192 /* 0 = Mode 0 = Basic I/O */ 193 /* 1 = Mode 1 = Strobed I/O */ 194 /* D1 = Port B direction (1 = input)*/ 195 /* D0 = Port C (lower 4 bits) */ 196 /* direction. (1 = input) */ 197 198 /* So 91 means Basic I/O on all 3 ports,*/ 199 /* Port A is an input port, B is an */ 200 /* output port, C is split with upper */ 201 /* 4 bits being an output port and lower*/ 202 /* 4 bits an input port, and enable the */ 203 /* sucker. */ 204 /* Courtesy Intel 8255 databook. Lars */ 205 #define MSE_HOLD 0x80 206 #define MSE_RXLOW 0x00 207 #define MSE_RXHIGH 0x20 208 #define MSE_RYLOW 0x40 209 #define MSE_RYHIGH 0x60 210 #define MSE_DISINTR 0x10 211 #define MSE_INTREN 0x00 212 213 static int mse_probelogi(device_t dev, mse_softc_t *sc); 214 static void mse_disablelogi(bus_space_tag_t t, 215 bus_space_handle_t h); 216 static void mse_getlogi(bus_space_tag_t t, bus_space_handle_t h, 217 int *dx, int *dy, int *but); 218 static void mse_enablelogi(bus_space_tag_t t, 219 bus_space_handle_t h); 220 221 /* 222 * ATI Inport mouse definitions 223 */ 224 #define MSE_INPORT_RESET 0x80 225 #define MSE_INPORT_STATUS 0x00 226 #define MSE_INPORT_DX 0x01 227 #define MSE_INPORT_DY 0x02 228 #define MSE_INPORT_MODE 0x07 229 #define MSE_INPORT_HOLD 0x20 230 #define MSE_INPORT_INTREN 0x09 231 232 static int mse_probeati(device_t dev, mse_softc_t *sc); 233 static void mse_enableati(bus_space_tag_t t, bus_space_handle_t h); 234 static void mse_disableati(bus_space_tag_t t, bus_space_handle_t h); 235 static void mse_getati(bus_space_tag_t t, bus_space_handle_t h, 236 int *dx, int *dy, int *but); 237 238 #define MSEPRI (PZERO + 3) 239 240 /* 241 * Table of mouse types. 242 * Keep the Logitech last, since I haven't figured out how to probe it 243 * properly yet. (Someday I'll have the documentation.) 244 */ 245 static struct mse_types { 246 int m_type; /* Type of bus mouse */ 247 int (*m_probe)(device_t dev, mse_softc_t *sc); 248 /* Probe routine to test for it */ 249 void (*m_enable)(bus_space_tag_t t, bus_space_handle_t h); 250 /* Start routine */ 251 void (*m_disable)(bus_space_tag_t t, bus_space_handle_t h); 252 /* Disable interrupts routine */ 253 void (*m_get)(bus_space_tag_t t, bus_space_handle_t h, int *dx, 254 int *dy, int *but); 255 /* and get mouse status */ 256 mousehw_t m_hw; /* buttons iftype type model hwid */ 257 mousemode_t m_mode; /* proto rate res accel level size mask */ 258 } mse_types[] = { 259 { MSE_ATIINPORT, 260 mse_probeati, mse_enableati, mse_disableati, mse_getati, 261 { 2, MOUSE_IF_INPORT, MOUSE_MOUSE, MOUSE_MODEL_GENERIC, 0, }, 262 { MOUSE_PROTO_INPORT, -1, -1, 0, 0, MOUSE_MSC_PACKETSIZE, 263 { MOUSE_MSC_SYNCMASK, MOUSE_MSC_SYNC, }, }, }, 264 { MSE_LOGITECH, 265 mse_probelogi, mse_enablelogi, mse_disablelogi, mse_getlogi, 266 { 2, MOUSE_IF_BUS, MOUSE_MOUSE, MOUSE_MODEL_GENERIC, 0, }, 267 { MOUSE_PROTO_BUS, -1, -1, 0, 0, MOUSE_MSC_PACKETSIZE, 268 { MOUSE_MSC_SYNCMASK, MOUSE_MSC_SYNC, }, }, }, 269 { 0, }, 270 }; 271 272 static int 273 mse_probe(dev) 274 device_t dev; 275 { 276 mse_softc_t *sc; 277 int error; 278 int rid; 279 int i; 280 281 /* check PnP IDs */ 282 error = ISA_PNP_PROBE(device_get_parent(dev), dev, mse_ids); 283 if (error == ENXIO) 284 return error; 285 286 sc = device_get_softc(dev); 287 rid = 0; 288 sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 289 MSE_IOSIZE, RF_ACTIVE); 290 if (sc->sc_port == NULL) 291 return ENXIO; 292 sc->sc_iot = rman_get_bustag(sc->sc_port); 293 sc->sc_ioh = rman_get_bushandle(sc->sc_port); 294 295 /* 296 * Check for each mouse type in the table. 297 */ 298 i = 0; 299 while (mse_types[i].m_type) { 300 if ((*mse_types[i].m_probe)(dev, sc)) { 301 sc->sc_mousetype = mse_types[i].m_type; 302 sc->sc_enablemouse = mse_types[i].m_enable; 303 sc->sc_disablemouse = mse_types[i].m_disable; 304 sc->sc_getmouse = mse_types[i].m_get; 305 sc->hw = mse_types[i].m_hw; 306 sc->mode = mse_types[i].m_mode; 307 bus_release_resource(dev, SYS_RES_IOPORT, rid, 308 sc->sc_port); 309 device_set_desc(dev, "Bus/InPort Mouse"); 310 return 0; 311 } 312 i++; 313 } 314 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port); 315 return ENXIO; 316 } 317 318 static int 319 mse_attach(dev) 320 device_t dev; 321 { 322 mse_softc_t *sc; 323 int flags; 324 int unit; 325 int rid; 326 327 sc = device_get_softc(dev); 328 unit = device_get_unit(dev); 329 330 rid = 0; 331 sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 332 MSE_IOSIZE, RF_ACTIVE); 333 if (sc->sc_port == NULL) 334 return ENXIO; 335 sc->sc_intr = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 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 struct cdev *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 struct cdev *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 struct cdev *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 struct cdev *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 struct cdev *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 struct cdev *dev; 671 mse_softc_t *sc; 672 673 dev = (struct cdev *)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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