psm.c revision 43105
1/*- 2 * Copyright (c) 1992, 1993 Erik Forsberg. 3 * Copyright (c) 1996, 1997 Kazutaka YOKOTA. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * THIS SOFTWARE IS PROVIDED BY ``AS IS'' AND ANY EXPRESS OR IMPLIED 13 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 15 * NO EVENT SHALL I BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 16 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 17 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 18 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 19 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 20 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 21 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 22 * 23 * $Id: psm.c,v 1.2 1998/11/15 18:25:17 dfr Exp $ 24 */ 25 26/* 27 * Ported to 386bsd Oct 17, 1992 28 * Sandi Donno, Computer Science, University of Cape Town, South Africa 29 * Please send bug reports to sandi@cs.uct.ac.za 30 * 31 * Thanks are also due to Rick Macklem, rick@snowhite.cis.uoguelph.ca - 32 * although I was only partially successful in getting the alpha release 33 * of his "driver for the Logitech and ATI Inport Bus mice for use with 34 * 386bsd and the X386 port" to work with my Microsoft mouse, I nevertheless 35 * found his code to be an invaluable reference when porting this driver 36 * to 386bsd. 37 * 38 * Further modifications for latest 386BSD+patchkit and port to NetBSD, 39 * Andrew Herbert <andrew@werple.apana.org.au> - 8 June 1993 40 * 41 * Cloned from the Microsoft Bus Mouse driver, also by Erik Forsberg, by 42 * Andrew Herbert - 12 June 1993 43 * 44 * Modified for PS/2 mouse by Charles Hannum <mycroft@ai.mit.edu> 45 * - 13 June 1993 46 * 47 * Modified for PS/2 AUX mouse by Shoji Yuen <yuen@nuie.nagoya-u.ac.jp> 48 * - 24 October 1993 49 * 50 * Hardware access routines and probe logic rewritten by 51 * Kazutaka Yokota <yokota@zodiac.mech.utsunomiya-u.ac.jp> 52 * - 3, 14, 22 October 1996. 53 * - 12 November 1996. IOCTLs and rearranging `psmread', `psmioctl'... 54 * - 14, 30 November 1996. Uses `kbdio.c'. 55 * - 13 December 1996. Uses queuing version of `kbdio.c'. 56 * - January/February 1997. Tweaked probe logic for 57 * HiNote UltraII/Latitude/Armada laptops. 58 * - 30 July 1997. Added APM support. 59 * - 5 March 1997. Defined driver configuration flags (PSM_CONFIG_XXX). 60 * Improved sync check logic. 61 * Vendor specific support routines. 62 */ 63 64#include "psm.h" 65#include "opt_devfs.h" 66#include "opt_psm.h" 67 68#if NPSM > 0 69 70#include <sys/param.h> 71#include <sys/systm.h> 72#include <sys/kernel.h> 73#include <sys/module.h> 74#include <sys/bus.h> 75#include <sys/conf.h> 76#include <sys/poll.h> 77#include <sys/syslog.h> 78#include <sys/malloc.h> 79#include <sys/rman.h> 80#ifdef DEVFS 81#include <sys/devfsext.h> 82#endif 83#include <sys/select.h> 84#include <sys/uio.h> 85 86#include <machine/clock.h> 87#include <machine/limits.h> 88#include <machine/mouse.h> 89#include <machine/resource.h> 90 91#include <isa/isareg.h> 92#include <isa/isavar.h> 93#include <dev/kbd/atkbdcreg.h> 94 95/* 96 * Driver specific options: the following options may be set by 97 * `options' statements in the kernel configuration file. 98 */ 99 100/* debugging */ 101#ifndef PSM_DEBUG 102#define PSM_DEBUG 0 /* logging: 0: none, 1: brief, 2: verbose */ 103#endif 104 105/* features */ 106 107/* #define PSM_HOOKAPM hook the APM resume event */ 108/* #define PSM_RESETAFTERSUSPEND reset the device at the resume event */ 109 110#if NAPM <= 0 111#undef PSM_HOOKAPM 112#endif /* NAPM */ 113 114#ifndef PSM_HOOKAPM 115#undef PSM_RESETAFTERSUSPEND 116#endif /* PSM_HOOKAPM */ 117 118/* end of driver specific options */ 119 120/* input queue */ 121#define PSM_BUFSIZE 960 122#define PSM_SMALLBUFSIZE 240 123 124/* operation levels */ 125#define PSM_LEVEL_BASE 0 126#define PSM_LEVEL_STANDARD 1 127#define PSM_LEVEL_NATIVE 2 128#define PSM_LEVEL_MIN PSM_LEVEL_BASE 129#define PSM_LEVEL_MAX PSM_LEVEL_NATIVE 130 131/* some macros */ 132#define PSM_UNIT(dev) (minor(dev) >> 1) 133#define PSM_NBLOCKIO(dev) (minor(dev) & 1) 134#define PSM_MKMINOR(unit,block) (((unit) << 1) | ((block) ? 0:1)) 135 136#ifndef max 137#define max(x,y) ((x) > (y) ? (x) : (y)) 138#endif 139#ifndef min 140#define min(x,y) ((x) < (y) ? (x) : (y)) 141#endif 142 143/* ring buffer */ 144typedef struct ringbuf { 145 int count; /* # of valid elements in the buffer */ 146 int head; /* head pointer */ 147 int tail; /* tail poiner */ 148 unsigned char buf[PSM_BUFSIZE]; 149} ringbuf_t; 150 151/* driver control block */ 152struct psm_softc { /* Driver status information */ 153 struct selinfo rsel; /* Process selecting for Input */ 154 unsigned char state; /* Mouse driver state */ 155 int config; /* driver configuration flags */ 156 int flags; /* other flags */ 157 KBDC kbdc; /* handle to access the keyboard controller */ 158 int addr; /* I/O port address */ 159 mousehw_t hw; /* hardware information */ 160 mousemode_t mode; /* operation mode */ 161 mousemode_t dflt_mode; /* default operation mode */ 162 mousestatus_t status; /* accumulated mouse movement */ 163 ringbuf_t queue; /* mouse status queue */ 164 unsigned char ipacket[16]; /* interim input buffer */ 165 int inputbytes; /* # of bytes in the input buffer */ 166 int button; /* the latest button state */ 167#ifdef DEVFS 168 void *devfs_token; 169 void *b_devfs_token; 170#endif 171#ifdef PSM_HOOKAPM 172 struct apmhook resumehook; 173#endif 174}; 175devclass_t psm_devclass; 176#define PSM_SOFTC(unit) ((struct psm_softc*)devclass_get_softc(psm_devclass, unit)) 177 178/* driver state flags (state) */ 179#define PSM_VALID 0x80 180#define PSM_OPEN 1 /* Device is open */ 181#define PSM_ASLP 2 /* Waiting for mouse data */ 182 183/* driver configuration flags (config) */ 184#define PSM_CONFIG_RESOLUTION 0x000f /* resolution */ 185#define PSM_CONFIG_ACCEL 0x00f0 /* acceleration factor */ 186#define PSM_CONFIG_NOCHECKSYNC 0x0100 /* disable sync. test */ 187 188#define PSM_CONFIG_FLAGS (PSM_CONFIG_RESOLUTION \ 189 | PSM_CONFIG_ACCEL \ 190 | PSM_CONFIG_NOCHECKSYNC) 191 192/* other flags (flags) */ 193/* 194 * Pass mouse data packet to the user land program `as is', even if 195 * the mouse has vendor-specific enhanced features and uses non-standard 196 * packet format. Otherwise manipulate the mouse data packet so that 197 * it can be recognized by the programs which can only understand 198 * the standard packet format. 199*/ 200#define PSM_FLAGS_NATIVEMODE 0x0200 201 202/* for backward compatibility */ 203#define OLD_MOUSE_GETHWINFO _IOR('M', 1, old_mousehw_t) 204#define OLD_MOUSE_GETMODE _IOR('M', 2, old_mousemode_t) 205#define OLD_MOUSE_SETMODE _IOW('M', 3, old_mousemode_t) 206 207typedef struct old_mousehw { 208 int buttons; 209 int iftype; 210 int type; 211 int hwid; 212} old_mousehw_t; 213 214typedef struct old_mousemode { 215 int protocol; 216 int rate; 217 int resolution; 218 int accelfactor; 219} old_mousemode_t; 220 221/* packet formatting function */ 222typedef int packetfunc_t __P((struct psm_softc *, unsigned char *, 223 int *, int, mousestatus_t *)); 224 225/* function prototypes */ 226static int psmprobe __P((device_t)); 227static int psmattach __P((device_t)); 228#ifdef PSM_HOOKAPM 229static int psmresume __P((void *)); 230#endif 231 232static d_open_t psmopen; 233static d_close_t psmclose; 234static d_read_t psmread; 235static d_ioctl_t psmioctl; 236static d_poll_t psmpoll; 237 238static int enable_aux_dev __P((KBDC)); 239static int disable_aux_dev __P((KBDC)); 240static int get_mouse_status __P((KBDC, int *, int, int)); 241static int get_aux_id __P((KBDC)); 242static int set_mouse_sampling_rate __P((KBDC, int)); 243static int set_mouse_scaling __P((KBDC, int)); 244static int set_mouse_resolution __P((KBDC, int)); 245static int set_mouse_mode __P((KBDC)); 246static int get_mouse_buttons __P((KBDC)); 247static int is_a_mouse __P((int)); 248static void recover_from_error __P((KBDC)); 249static int restore_controller __P((KBDC, int)); 250static int reinitialize __P((int, mousemode_t *)); 251static int doopen __P((int, int)); 252static char *model_name(int); 253static void psmintr(void*); 254 255/* vendor specific features */ 256typedef int probefunc_t __P((struct psm_softc *)); 257 258static int mouse_id_proc1 __P((KBDC, int, int, int *)); 259static probefunc_t enable_groller; 260static probefunc_t enable_gmouse; 261static probefunc_t enable_aglide; 262static probefunc_t enable_kmouse; 263static probefunc_t enable_msintelli; 264static probefunc_t enable_mmanplus; 265static int tame_mouse __P((struct psm_softc *, mousestatus_t *, unsigned char *)); 266 267static struct { 268 int model; 269 unsigned char syncmask; 270 int packetsize; 271 probefunc_t *probefunc; 272} vendortype[] = { 273 { MOUSE_MODEL_NET, /* Genius NetMouse */ 274 0xc8, MOUSE_INTELLI_PACKETSIZE, enable_gmouse, }, 275 { MOUSE_MODEL_NETSCROLL, /* Genius NetScroll */ 276 0xc8, 6, enable_groller, }, 277 { MOUSE_MODEL_GLIDEPOINT, /* ALPS GlidePoint */ 278 0xc0, MOUSE_PS2_PACKETSIZE, enable_aglide, }, 279 { MOUSE_MODEL_MOUSEMANPLUS, /* Logitech MouseMan+ */ 280 0x08, MOUSE_PS2_PACKETSIZE, enable_mmanplus, }, 281 { MOUSE_MODEL_THINK, /* Kensignton ThinkingMouse */ 282 0x80, MOUSE_PS2_PACKETSIZE, enable_kmouse, }, 283 { MOUSE_MODEL_INTELLI, /* Microsoft IntelliMouse */ 284 0xc8, MOUSE_INTELLI_PACKETSIZE, enable_msintelli, }, 285 { MOUSE_MODEL_GENERIC, 286 0xc0, MOUSE_PS2_PACKETSIZE, NULL, }, 287}; 288 289/* device driver declarateion */ 290static device_method_t psm_methods[] = { 291 /* Device interface */ 292 DEVMETHOD(device_probe, psmprobe), 293 DEVMETHOD(device_attach, psmattach), 294 295 { 0, 0 } 296}; 297 298static driver_t psm_driver = { 299 "psm", 300 psm_methods, 301 DRIVER_TYPE_TTY, 302 sizeof(struct psm_softc), 303}; 304 305#define CDEV_MAJOR 21 306 307static struct cdevsw psm_cdevsw = { 308 psmopen, psmclose, psmread, nowrite, /* 21 */ 309 psmioctl, nostop, nullreset, nodevtotty, 310 psmpoll, nommap, NULL, "psm", NULL, -1 311}; 312 313/* debug message level */ 314static int verbose = PSM_DEBUG; 315 316/* device I/O routines */ 317static int 318enable_aux_dev(KBDC kbdc) 319{ 320 int res; 321 322 res = send_aux_command(kbdc, PSMC_ENABLE_DEV); 323 if (verbose >= 2) 324 log(LOG_DEBUG, "psm: ENABLE_DEV return code:%04x\n", res); 325 326 return (res == PSM_ACK); 327} 328 329static int 330disable_aux_dev(KBDC kbdc) 331{ 332 int res; 333 334 res = send_aux_command(kbdc, PSMC_DISABLE_DEV); 335 if (verbose >= 2) 336 log(LOG_DEBUG, "psm: DISABLE_DEV return code:%04x\n", res); 337 338 return (res == PSM_ACK); 339} 340 341static int 342get_mouse_status(KBDC kbdc, int *status, int flag, int len) 343{ 344 int cmd; 345 int res; 346 int i; 347 348 switch (flag) { 349 case 0: 350 default: 351 cmd = PSMC_SEND_DEV_STATUS; 352 break; 353 case 1: 354 cmd = PSMC_SEND_DEV_DATA; 355 break; 356 } 357 empty_aux_buffer(kbdc, 5); 358 res = send_aux_command(kbdc, cmd); 359 if (verbose >= 2) 360 log(LOG_DEBUG, "psm: SEND_AUX_DEV_%s return code:%04x\n", 361 (flag == 1) ? "DATA" : "STATUS", res); 362 if (res != PSM_ACK) 363 return 0; 364 365 for (i = 0; i < len; ++i) { 366 status[i] = read_aux_data(kbdc); 367 if (status[i] < 0) 368 break; 369 } 370 371 if (verbose) { 372 log(LOG_DEBUG, "psm: %s %02x %02x %02x\n", 373 (flag == 1) ? "data" : "status", status[0], status[1], status[2]); 374 } 375 376 return i; 377} 378 379static int 380get_aux_id(KBDC kbdc) 381{ 382 int res; 383 int id; 384 385 empty_aux_buffer(kbdc, 5); 386 res = send_aux_command(kbdc, PSMC_SEND_DEV_ID); 387 if (verbose >= 2) 388 log(LOG_DEBUG, "psm: SEND_DEV_ID return code:%04x\n", res); 389 if (res != PSM_ACK) 390 return (-1); 391 392 /* 10ms delay */ 393 DELAY(10000); 394 395 id = read_aux_data(kbdc); 396 if (verbose >= 2) 397 log(LOG_DEBUG, "psm: device ID: %04x\n", id); 398 399 return id; 400} 401 402static int 403set_mouse_sampling_rate(KBDC kbdc, int rate) 404{ 405 int res; 406 407 res = send_aux_command_and_data(kbdc, PSMC_SET_SAMPLING_RATE, rate); 408 if (verbose >= 2) 409 log(LOG_DEBUG, "psm: SET_SAMPLING_RATE (%d) %04x\n", rate, res); 410 411 return ((res == PSM_ACK) ? rate : -1); 412} 413 414static int 415set_mouse_scaling(KBDC kbdc, int scale) 416{ 417 int res; 418 419 switch (scale) { 420 case 1: 421 default: 422 scale = PSMC_SET_SCALING11; 423 break; 424 case 2: 425 scale = PSMC_SET_SCALING21; 426 break; 427 } 428 res = send_aux_command(kbdc, scale); 429 if (verbose >= 2) 430 log(LOG_DEBUG, "psm: SET_SCALING%s return code:%04x\n", 431 (scale == PSMC_SET_SCALING21) ? "21" : "11", res); 432 433 return (res == PSM_ACK); 434} 435 436/* `val' must be 0 through PSMD_MAX_RESOLUTION */ 437static int 438set_mouse_resolution(KBDC kbdc, int val) 439{ 440 int res; 441 442 res = send_aux_command_and_data(kbdc, PSMC_SET_RESOLUTION, val); 443 if (verbose >= 2) 444 log(LOG_DEBUG, "psm: SET_RESOLUTION (%d) %04x\n", val, res); 445 446 return ((res == PSM_ACK) ? val : -1); 447} 448 449/* 450 * NOTE: once `set_mouse_mode()' is called, the mouse device must be 451 * re-enabled by calling `enable_aux_dev()' 452 */ 453static int 454set_mouse_mode(KBDC kbdc) 455{ 456 int res; 457 458 res = send_aux_command(kbdc, PSMC_SET_STREAM_MODE); 459 if (verbose >= 2) 460 log(LOG_DEBUG, "psm: SET_STREAM_MODE return code:%04x\n", res); 461 462 return (res == PSM_ACK); 463} 464 465static int 466get_mouse_buttons(KBDC kbdc) 467{ 468 int c = 2; /* assume two buttons by default */ 469 int status[3]; 470 471 /* 472 * NOTE: a special sequence to obtain Logitech Mouse specific 473 * information: set resolution to 25 ppi, set scaling to 1:1, set 474 * scaling to 1:1, set scaling to 1:1. Then the second byte of the 475 * mouse status bytes is the number of available buttons. 476 * Some manufactures also support this sequence. 477 */ 478 if (set_mouse_resolution(kbdc, PSMD_RES_LOW) != PSMD_RES_LOW) 479 return c; 480 if (set_mouse_scaling(kbdc, 1) && set_mouse_scaling(kbdc, 1) 481 && set_mouse_scaling(kbdc, 1) 482 && (get_mouse_status(kbdc, status, 0, 3) >= 3)) { 483 if (status[1] != 0) 484 return status[1]; 485 } 486 return c; 487} 488 489/* misc subroutines */ 490/* 491 * Someday, I will get the complete list of valid pointing devices and 492 * their IDs... XXX 493 */ 494static int 495is_a_mouse(int id) 496{ 497#if 0 498 static int valid_ids[] = { 499 PSM_MOUSE_ID, /* mouse */ 500 PSM_BALLPOINT_ID, /* ballpoint device */ 501 PSM_INTELLI_ID, /* Intellimouse */ 502 -1 /* end of table */ 503 }; 504 int i; 505 506 for (i = 0; valid_ids[i] >= 0; ++i) 507 if (valid_ids[i] == id) 508 return TRUE; 509 return FALSE; 510#else 511 return TRUE; 512#endif 513} 514 515static char * 516model_name(int model) 517{ 518 static struct { 519 int model_code; 520 char *model_name; 521 } models[] = { 522 { MOUSE_MODEL_NETSCROLL, "NetScroll Mouse" }, 523 { MOUSE_MODEL_NET, "NetMouse" }, 524 { MOUSE_MODEL_GLIDEPOINT, "GlidePoint" }, 525 { MOUSE_MODEL_THINK, "ThinkingMouse" }, 526 { MOUSE_MODEL_INTELLI, "IntelliMouse" }, 527 { MOUSE_MODEL_MOUSEMANPLUS, "MouseMan+" }, 528 { MOUSE_MODEL_GENERIC, "Generic PS/2 mouse" }, 529 { MOUSE_MODEL_UNKNOWN, NULL }, 530 }; 531 int i; 532 533 for (i = 0; models[i].model_code != MOUSE_MODEL_UNKNOWN; ++i) { 534 if (models[i].model_code == model) 535 return models[i].model_name; 536 } 537 return "Unknown"; 538} 539 540static void 541recover_from_error(KBDC kbdc) 542{ 543 /* discard anything left in the output buffer */ 544 empty_both_buffers(kbdc, 10); 545 546#if 0 547 /* 548 * NOTE: KBDC_RESET_KBD may not restore the communication between the 549 * keyboard and the controller. 550 */ 551 reset_kbd(kbdc); 552#else 553 /* 554 * NOTE: somehow diagnostic and keyboard port test commands bring the 555 * keyboard back. 556 */ 557 if (!test_controller(kbdc)) 558 log(LOG_ERR, "psm: keyboard controller failed.\n"); 559 /* if there isn't a keyboard in the system, the following error is OK */ 560 if (test_kbd_port(kbdc) != 0) { 561 if (verbose) 562 log(LOG_ERR, "psm: keyboard port failed.\n"); 563 } 564#endif 565} 566 567static int 568restore_controller(KBDC kbdc, int command_byte) 569{ 570 empty_both_buffers(kbdc, 10); 571 572 if (!set_controller_command_byte(kbdc, 0xff, command_byte)) { 573 log(LOG_ERR, "psm: failed to restore the keyboard controller " 574 "command byte.\n"); 575 return FALSE; 576 } else { 577 return TRUE; 578 } 579} 580 581/* 582 * Re-initialize the aux port and device. The aux port must be enabled 583 * and its interrupt must be disabled before calling this routine. 584 * The aux device will be disabled before returning. 585 * The keyboard controller must be locked via `kbdc_lock()' before 586 * calling this routine. 587 */ 588static int 589reinitialize(int unit, mousemode_t *mode) 590{ 591 struct psm_softc *sc = PSM_SOFTC(unit); 592 KBDC kbdc = sc->kbdc; 593 int stat[3]; 594 int i; 595 596 switch((i = test_aux_port(kbdc))) { 597 case 1: /* ignore this error */ 598 case PSM_ACK: 599 if (verbose) 600 log(LOG_DEBUG, "psm%d: strange result for test aux port (%d).\n", 601 unit, i); 602 /* fall though */ 603 case 0: /* no error */ 604 break; 605 case -1: /* time out */ 606 default: /* error */ 607 recover_from_error(kbdc); 608 log(LOG_ERR, "psm%d: the aux port is not functioning (%d).\n", 609 unit, i); 610 return FALSE; 611 } 612 613 /* 614 * NOTE: some controllers appears to hang the `keyboard' when 615 * the aux port doesn't exist and `PSMC_RESET_DEV' is issued. 616 */ 617 if (!reset_aux_dev(kbdc)) { 618 recover_from_error(kbdc); 619 log(LOG_ERR, "psm%d: failed to reset the aux device.\n", unit); 620 return FALSE; 621 } 622 623 /* 624 * both the aux port and the aux device is functioning, see 625 * if the device can be enabled. 626 */ 627 if (!enable_aux_dev(kbdc) || !disable_aux_dev(kbdc)) { 628 log(LOG_ERR, "psm%d: failed to enable the aux device.\n", unit); 629 return FALSE; 630 } 631 empty_both_buffers(kbdc, 10); /* remove stray data if any */ 632 633 /* FIXME: hardware ID, mouse buttons? */ 634 635 /* other parameters */ 636 for (i = 0; vendortype[i].probefunc != NULL; ++i) { 637 if ((*vendortype[i].probefunc)(sc)) { 638 if (verbose >= 2) 639 log(LOG_ERR, "psm%d: found %s\n", 640 unit, model_name(vendortype[i].model)); 641 break; 642 } 643 } 644 645 sc->hw.model = vendortype[i].model; 646 sc->mode.packetsize = vendortype[i].packetsize; 647 648 /* set mouse parameters */ 649 if (mode != (mousemode_t *)NULL) { 650 if (mode->rate > 0) 651 mode->rate = set_mouse_sampling_rate(kbdc, mode->rate); 652 if (mode->resolution >= 0) 653 mode->resolution = set_mouse_resolution(kbdc, mode->resolution); 654 set_mouse_scaling(kbdc, 1); 655 set_mouse_mode(kbdc); 656 } 657 658 /* request a data packet and extract sync. bits */ 659 if (get_mouse_status(kbdc, stat, 1, 3) < 3) { 660 log(LOG_DEBUG, "psm%d: failed to get data (reinitialize).\n", unit); 661 sc->mode.syncmask[0] = 0; 662 } else { 663 sc->mode.syncmask[1] = stat[0] & sc->mode.syncmask[0]; /* syncbits */ 664 /* the NetScroll Mouse will send three more bytes... Ignore them */ 665 empty_aux_buffer(kbdc, 5); 666 } 667 668 /* just check the status of the mouse */ 669 if (get_mouse_status(kbdc, stat, 0, 3) < 3) 670 log(LOG_DEBUG, "psm%d: failed to get status (reinitialize).\n", unit); 671 672 return TRUE; 673} 674 675static int 676doopen(int unit, int command_byte) 677{ 678 struct psm_softc *sc = PSM_SOFTC(unit); 679 int stat[3]; 680 681 /* enable the mouse device */ 682 if (!enable_aux_dev(sc->kbdc)) { 683 /* MOUSE ERROR: failed to enable the mouse because: 684 * 1) the mouse is faulty, 685 * 2) the mouse has been removed(!?) 686 * In the latter case, the keyboard may have hung, and need 687 * recovery procedure... 688 */ 689 recover_from_error(sc->kbdc); 690#if 0 691 /* FIXME: we could reset the mouse here and try to enable 692 * it again. But it will take long time and it's not a good 693 * idea to disable the keyboard that long... 694 */ 695 if (!reinitialize(unit, &sc->mode) || !enable_aux_dev(sc->kbdc)) { 696 recover_from_error(sc->kbdc); 697#else 698 { 699#endif 700 restore_controller(sc->kbdc, command_byte); 701 /* mark this device is no longer available */ 702 sc->state &= ~PSM_VALID; 703 log(LOG_ERR, "psm%d: failed to enable the device (doopen).\n", 704 unit); 705 return (EIO); 706 } 707 } 708 709 if (get_mouse_status(sc->kbdc, stat, 0, 3) < 3) 710 log(LOG_DEBUG, "psm%d: failed to get status (doopen).\n", unit); 711 712 /* enable the aux port and interrupt */ 713 if (!set_controller_command_byte(sc->kbdc, 714 kbdc_get_device_mask(sc->kbdc), 715 (command_byte & KBD_KBD_CONTROL_BITS) 716 | KBD_ENABLE_AUX_PORT | KBD_ENABLE_AUX_INT)) { 717 /* CONTROLLER ERROR */ 718 disable_aux_dev(sc->kbdc); 719 restore_controller(sc->kbdc, command_byte); 720 log(LOG_ERR, "psm%d: failed to enable the aux interrupt (doopen).\n", 721 unit); 722 return (EIO); 723 } 724 725 return (0); 726} 727 728/* psm driver entry points */ 729 730#define endprobe(v) { if (bootverbose) \ 731 --verbose; \ 732 kbdc_set_device_mask(sc->kbdc, mask); \ 733 kbdc_lock(sc->kbdc, FALSE); \ 734 free(sc, M_DEVBUF); \ 735 return (v); \ 736 } 737 738static int 739psmprobe(device_t dev) 740{ 741 int unit = device_get_unit(dev); 742 struct psm_softc *sc = device_get_softc(dev); 743 u_long port; 744 u_long flags; 745 int stat[3]; 746 int command_byte; 747 int mask; 748 int i; 749 750#if 0 751 kbdc_debug(TRUE); 752#endif 753 BUS_READ_IVAR(device_get_parent(dev), dev, KBDC_IVAR_PORT, &port); 754 BUS_READ_IVAR(device_get_parent(dev), dev, KBDC_IVAR_FLAGS, &flags); 755 756 sc->addr = port; 757 sc->kbdc = kbdc_open(sc->addr); 758 sc->config = flags & PSM_CONFIG_FLAGS; 759 sc->flags = 0; 760 if (bootverbose) 761 ++verbose; 762 763 device_set_desc(dev, "PS/2 Mouse"); 764 765 if (!kbdc_lock(sc->kbdc, TRUE)) { 766 printf("psm%d: unable to lock the controller.\n", unit); 767 if (bootverbose) 768 --verbose; 769 return (ENXIO); 770 } 771 772 /* 773 * NOTE: two bits in the command byte controls the operation of the 774 * aux port (mouse port): the aux port disable bit (bit 5) and the aux 775 * port interrupt (IRQ 12) enable bit (bit 2). 776 */ 777 778 /* discard anything left after the keyboard initialization */ 779 empty_both_buffers(sc->kbdc, 10); 780 781 /* save the current command byte; it will be used later */ 782 mask = kbdc_get_device_mask(sc->kbdc) & ~KBD_AUX_CONTROL_BITS; 783 command_byte = get_controller_command_byte(sc->kbdc); 784 if (verbose) 785 printf("psm%d: current command byte:%04x\n", unit, command_byte); 786 if (command_byte == -1) { 787 /* CONTROLLER ERROR */ 788 printf("psm%d: unable to get the current command byte value.\n", 789 unit); 790 endprobe(ENXIO); 791 } 792 793 /* 794 * disable the keyboard port while probing the aux port, which must be 795 * enabled during this routine 796 */ 797 if (!set_controller_command_byte(sc->kbdc, 798 KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS, 799 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 800 | KBD_ENABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 801 /* 802 * this is CONTROLLER ERROR; I don't know how to recover 803 * from this error... 804 */ 805 restore_controller(sc->kbdc, command_byte); 806 printf("psm%d: unable to set the command byte.\n", unit); 807 endprobe(ENXIO); 808 } 809 810 /* 811 * NOTE: `test_aux_port()' is designed to return with zero if the aux 812 * port exists and is functioning. However, some controllers appears 813 * to respond with zero even when the aux port doesn't exist. (It may 814 * be that this is only the case when the controller DOES have the aux 815 * port but the port is not wired on the motherboard.) The keyboard 816 * controllers without the port, such as the original AT, are 817 * supporsed to return with an error code or simply time out. In any 818 * case, we have to continue probing the port even when the controller 819 * passes this test. 820 * 821 * XXX: some controllers erroneously return the error code 1 when 822 * it has the perfectly functional aux port. We have to ignore this 823 * error code. Even if the controller HAS error with the aux port, 824 * it will be detected later... 825 * XXX: another incompatible controller returns PSM_ACK (0xfa)... 826 */ 827 switch ((i = test_aux_port(sc->kbdc))) { 828 case 1: /* ignore this error */ 829 case PSM_ACK: 830 if (verbose) 831 printf("psm%d: strange result for test aux port (%d).\n", 832 unit, i); 833 /* fall though */ 834 case 0: /* no error */ 835 break; 836 case -1: /* time out */ 837 default: /* error */ 838 recover_from_error(sc->kbdc); 839 restore_controller(sc->kbdc, command_byte); 840 if (verbose) 841 printf("psm%d: the aux port is not functioning (%d).\n", 842 unit, i); 843 endprobe(ENXIO); 844 } 845 846 /* 847 * NOTE: some controllers appears to hang the `keyboard' when the aux 848 * port doesn't exist and `PSMC_RESET_DEV' is issued. 849 */ 850 if (!reset_aux_dev(sc->kbdc)) { 851 recover_from_error(sc->kbdc); 852 restore_controller(sc->kbdc, command_byte); 853 if (verbose) 854 printf("psm%d: failed to reset the aux device.\n", unit); 855 endprobe(ENXIO); 856 } 857 /* 858 * both the aux port and the aux device is functioning, see if the 859 * device can be enabled. NOTE: when enabled, the device will start 860 * sending data; we shall immediately disable the device once we know 861 * the device can be enabled. 862 */ 863 if (!enable_aux_dev(sc->kbdc) || !disable_aux_dev(sc->kbdc)) { 864 /* MOUSE ERROR */ 865 restore_controller(sc->kbdc, command_byte); 866 if (verbose) 867 printf("psm%d: failed to enable the aux device.\n", unit); 868 endprobe(ENXIO); 869 } 870 871 /* save the default values after reset */ 872 if (get_mouse_status(sc->kbdc, stat, 0, 3) >= 3) { 873 sc->dflt_mode.rate = sc->mode.rate = stat[2]; 874 sc->dflt_mode.resolution = sc->mode.resolution = stat[1]; 875 } else { 876 sc->dflt_mode.rate = sc->mode.rate = -1; 877 sc->dflt_mode.resolution = sc->mode.resolution = -1; 878 } 879 880 /* hardware information */ 881 sc->hw.iftype = MOUSE_IF_PS2; 882 883 /* verify the device is a mouse */ 884 sc->hw.hwid = get_aux_id(sc->kbdc); 885 if (!is_a_mouse(sc->hw.hwid)) { 886 restore_controller(sc->kbdc, command_byte); 887 if (verbose) 888 printf("psm%d: unknown device type (%d).\n", unit, sc->hw.hwid); 889 endprobe(ENXIO); 890 } 891 switch (sc->hw.hwid) { 892 case PSM_BALLPOINT_ID: 893 sc->hw.type = MOUSE_TRACKBALL; 894 break; 895 case PSM_MOUSE_ID: 896 case PSM_INTELLI_ID: 897 sc->hw.type = MOUSE_MOUSE; 898 break; 899 default: 900 sc->hw.type = MOUSE_UNKNOWN; 901 break; 902 } 903 904 /* # of buttons */ 905 sc->hw.buttons = get_mouse_buttons(sc->kbdc); 906 907 /* other parameters */ 908 for (i = 0; vendortype[i].probefunc != NULL; ++i) { 909 if ((*vendortype[i].probefunc)(sc)) { 910 if (verbose >= 2) 911 printf("psm%d: found %s\n", 912 unit, model_name(vendortype[i].model)); 913 break; 914 } 915 } 916 917 sc->hw.model = vendortype[i].model; 918 919 sc->dflt_mode.level = PSM_LEVEL_BASE; 920 sc->dflt_mode.packetsize = MOUSE_PS2_PACKETSIZE; 921 sc->dflt_mode.accelfactor = (sc->config & PSM_CONFIG_ACCEL) >> 4; 922 if (sc->config & PSM_CONFIG_NOCHECKSYNC) 923 sc->dflt_mode.syncmask[0] = 0; 924 else 925 sc->dflt_mode.syncmask[0] = vendortype[i].syncmask; 926 sc->dflt_mode.syncmask[1] = 0; /* syncbits */ 927 sc->mode = sc->dflt_mode; 928 sc->mode.packetsize = vendortype[i].packetsize; 929 930 /* set mouse parameters */ 931 i = send_aux_command(sc->kbdc, PSMC_SET_DEFAULTS); 932 if (verbose >= 2) 933 printf("psm%d: SET_DEFAULTS return code:%04x\n", unit, i); 934 if (sc->config & PSM_CONFIG_RESOLUTION) { 935 sc->mode.resolution 936 = set_mouse_resolution(sc->kbdc, 937 (sc->config & PSM_CONFIG_RESOLUTION) - 1); 938 } 939 940 /* request a data packet and extract sync. bits */ 941 if (get_mouse_status(sc->kbdc, stat, 1, 3) < 3) { 942 printf("psm%d: failed to get data.\n", unit); 943 sc->mode.syncmask[0] = 0; 944 } else { 945 sc->mode.syncmask[1] = stat[0] & sc->mode.syncmask[0]; /* syncbits */ 946 /* the NetScroll Mouse will send three more bytes... Ignore them */ 947 empty_aux_buffer(sc->kbdc, 5); 948 } 949 950 /* just check the status of the mouse */ 951 /* 952 * NOTE: XXX there are some arcane controller/mouse combinations out 953 * there, which hung the controller unless there is data transmission 954 * after ACK from the mouse. 955 */ 956 if (get_mouse_status(sc->kbdc, stat, 0, 3) < 3) { 957 printf("psm%d: failed to get status.\n", unit); 958 } else { 959 /* 960 * When in its native mode, some mice operate with different 961 * default parameters than in the PS/2 compatible mode. 962 */ 963 sc->dflt_mode.rate = sc->mode.rate = stat[2]; 964 sc->dflt_mode.resolution = sc->mode.resolution = stat[1]; 965 } 966 967 /* disable the aux port for now... */ 968 if (!set_controller_command_byte(sc->kbdc, 969 KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS, 970 (command_byte & KBD_KBD_CONTROL_BITS) 971 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 972 /* 973 * this is CONTROLLER ERROR; I don't know the proper way to 974 * recover from this error... 975 */ 976 restore_controller(sc->kbdc, command_byte); 977 printf("psm%d: unable to set the command byte.\n", unit); 978 endprobe(ENXIO); 979 } 980 981 /* done */ 982 kbdc_set_device_mask(sc->kbdc, mask | KBD_AUX_CONTROL_BITS); 983 kbdc_lock(sc->kbdc, FALSE); 984 return (0); 985} 986 987static int 988psmattach(device_t dev) 989{ 990 int unit = device_get_unit(dev); 991 struct psm_softc *sc = device_get_softc(dev); 992 void *ih; 993 struct resource *res; 994 u_long irq; 995 int zero = 0; 996 997 if (sc == NULL) /* shouldn't happen */ 998 return (ENXIO); 999 1000 /* Setup initial state */ 1001 sc->state = PSM_VALID; 1002 1003 /* Done */ 1004#ifdef DEVFS 1005 sc->devfs_token = 1006 devfs_add_devswf(&psm_cdevsw, PSM_MKMINOR(unit, FALSE), 1007 DV_CHR, 0, 0, 0666, "psm%d", unit); 1008 sc->b_devfs_token = 1009 devfs_add_devswf(&psm_cdevsw, PSM_MKMINOR(unit, TRUE), 1010 DV_CHR, 0, 0, 0666, "bpsm%d", unit); 1011#endif /* DEVFS */ 1012 1013#ifdef PSM_HOOKAPM 1014 sc->resumehook.ah_name = "PS/2 mouse"; 1015 sc->resumehook.ah_fun = psmresume; 1016 sc->resumehook.ah_arg = (void *)unit; 1017 sc->resumehook.ah_order = APM_MID_ORDER; 1018 apm_hook_establish(APM_HOOK_RESUME , &sc->resumehook); 1019 if (verbose) 1020 printf("psm%d: APM hooks installed.\n", unit); 1021#endif /* PSM_HOOKAPM */ 1022 1023 if (!verbose) { 1024 printf("psm%d: model %s, device ID %d\n", 1025 unit, model_name(sc->hw.model), sc->hw.hwid); 1026 } else { 1027 printf("psm%d: model %s, device ID %d, %d buttons\n", 1028 unit, model_name(sc->hw.model), sc->hw.hwid, sc->hw.buttons); 1029 printf("psm%d: config:%08x, flags:%08x, packet size:%d\n", 1030 unit, sc->config, sc->flags, sc->mode.packetsize); 1031 printf("psm%d: syncmask:%02x, syncbits:%02x\n", 1032 unit, sc->mode.syncmask[0], sc->mode.syncmask[1]); 1033 } 1034 1035 if (bootverbose) 1036 --verbose; 1037 1038 BUS_READ_IVAR(device_get_parent(dev), dev, KBDC_IVAR_IRQ, &irq); 1039 res = bus_alloc_resource(dev, SYS_RES_IRQ, &zero, irq, irq, 1, 1040 RF_SHAREABLE | RF_ACTIVE); 1041 BUS_SETUP_INTR(device_get_parent(dev), dev, res, psmintr, sc, 1042 &ih); 1043 1044 return (0); 1045} 1046 1047static int 1048psmopen(dev_t dev, int flag, int fmt, struct proc *p) 1049{ 1050 int unit = PSM_UNIT(dev); 1051 struct psm_softc *sc; 1052 int command_byte; 1053 int err; 1054 int s; 1055 1056 /* Validate unit number */ 1057 if (unit >= NPSM) 1058 return (ENXIO); 1059 1060 /* Get device data */ 1061 sc = PSM_SOFTC(unit); 1062 if ((sc == NULL) || (sc->state & PSM_VALID) == 0) 1063 /* the device is no longer valid/functioning */ 1064 return (ENXIO); 1065 1066 /* Disallow multiple opens */ 1067 if (sc->state & PSM_OPEN) 1068 return (EBUSY); 1069 1070 device_busy(devclass_get_device(psm_devclass, unit)); 1071 1072 /* Initialize state */ 1073 sc->rsel.si_flags = 0; 1074 sc->rsel.si_pid = 0; 1075 sc->mode.level = sc->dflt_mode.level; 1076 sc->mode.protocol = sc->dflt_mode.protocol; 1077 1078 /* flush the event queue */ 1079 sc->queue.count = 0; 1080 sc->queue.head = 0; 1081 sc->queue.tail = 0; 1082 sc->status.flags = 0; 1083 sc->status.button = 0; 1084 sc->status.obutton = 0; 1085 sc->status.dx = 0; 1086 sc->status.dy = 0; 1087 sc->status.dz = 0; 1088 sc->button = 0; 1089 1090 /* empty input buffer */ 1091 bzero(sc->ipacket, sizeof(sc->ipacket)); 1092 sc->inputbytes = 0; 1093 1094 /* don't let timeout routines in the keyboard driver to poll the kbdc */ 1095 if (!kbdc_lock(sc->kbdc, TRUE)) 1096 return (EIO); 1097 1098 /* save the current controller command byte */ 1099 s = spltty(); 1100 command_byte = get_controller_command_byte(sc->kbdc); 1101 1102 /* enable the aux port and temporalily disable the keyboard */ 1103 if ((command_byte == -1) 1104 || !set_controller_command_byte(sc->kbdc, 1105 kbdc_get_device_mask(sc->kbdc), 1106 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 1107 | KBD_ENABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 1108 /* CONTROLLER ERROR; do you know how to get out of this? */ 1109 kbdc_lock(sc->kbdc, FALSE); 1110 splx(s); 1111 log(LOG_ERR, "psm%d: unable to set the command byte (psmopen).\n", 1112 unit); 1113 return (EIO); 1114 } 1115 /* 1116 * Now that the keyboard controller is told not to generate 1117 * the keyboard and mouse interrupts, call `splx()' to allow 1118 * the other tty interrupts. The clock interrupt may also occur, 1119 * but timeout routines will be blocked by the poll flag set 1120 * via `kbdc_lock()' 1121 */ 1122 splx(s); 1123 1124 /* enable the mouse device */ 1125 err = doopen(unit, command_byte); 1126 1127 /* done */ 1128 if (err == 0) 1129 sc->state |= PSM_OPEN; 1130 kbdc_lock(sc->kbdc, FALSE); 1131 return (err); 1132} 1133 1134static int 1135psmclose(dev_t dev, int flag, int fmt, struct proc *p) 1136{ 1137 int unit = PSM_UNIT(dev); 1138 struct psm_softc *sc = PSM_SOFTC(unit); 1139 int stat[3]; 1140 int command_byte; 1141 int s; 1142 1143 /* don't let timeout routines in the keyboard driver to poll the kbdc */ 1144 if (!kbdc_lock(sc->kbdc, TRUE)) 1145 return (EIO); 1146 1147 /* save the current controller command byte */ 1148 s = spltty(); 1149 command_byte = get_controller_command_byte(sc->kbdc); 1150 if (command_byte == -1) { 1151 kbdc_lock(sc->kbdc, FALSE); 1152 splx(s); 1153 return (EIO); 1154 } 1155 1156 /* disable the aux interrupt and temporalily disable the keyboard */ 1157 if (!set_controller_command_byte(sc->kbdc, 1158 kbdc_get_device_mask(sc->kbdc), 1159 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 1160 | KBD_ENABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 1161 log(LOG_ERR, "psm%d: failed to disable the aux int (psmclose).\n", 1162 PSM_UNIT(dev)); 1163 /* CONTROLLER ERROR; 1164 * NOTE: we shall force our way through. Because the only 1165 * ill effect we shall see is that we may not be able 1166 * to read ACK from the mouse, and it doesn't matter much 1167 * so long as the mouse will accept the DISABLE command. 1168 */ 1169 } 1170 splx(s); 1171 1172 /* remove anything left in the output buffer */ 1173 empty_aux_buffer(sc->kbdc, 10); 1174 1175 /* disable the aux device, port and interrupt */ 1176 if (sc->state & PSM_VALID) { 1177 if (!disable_aux_dev(sc->kbdc)) { 1178 /* MOUSE ERROR; 1179 * NOTE: we don't return error and continue, pretending 1180 * we have successfully disabled the device. It's OK because 1181 * the interrupt routine will discard any data from the mouse 1182 * hereafter. 1183 */ 1184 log(LOG_ERR, "psm%d: failed to disable the device (psmclose).\n", 1185 PSM_UNIT(dev)); 1186 } 1187 1188 if (get_mouse_status(sc->kbdc, stat, 0, 3) < 3) 1189 log(LOG_DEBUG, "psm%d: failed to get status (psmclose).\n", 1190 PSM_UNIT(dev)); 1191 } 1192 1193 if (!set_controller_command_byte(sc->kbdc, 1194 kbdc_get_device_mask(sc->kbdc), 1195 (command_byte & KBD_KBD_CONTROL_BITS) 1196 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 1197 /* CONTROLLER ERROR; 1198 * we shall ignore this error; see the above comment. 1199 */ 1200 log(LOG_ERR, "psm%d: failed to disable the aux port (psmclose).\n", 1201 PSM_UNIT(dev)); 1202 } 1203 1204 /* remove anything left in the output buffer */ 1205 empty_aux_buffer(sc->kbdc, 10); 1206 1207 /* close is almost always successful */ 1208 sc->state &= ~PSM_OPEN; 1209 kbdc_lock(sc->kbdc, FALSE); 1210 device_unbusy(devclass_get_device(psm_devclass, unit)); 1211 return (0); 1212} 1213 1214static int 1215tame_mouse(struct psm_softc *sc, mousestatus_t *status, unsigned char *buf) 1216{ 1217 static unsigned char butmapps2[8] = { 1218 0, 1219 MOUSE_PS2_BUTTON1DOWN, 1220 MOUSE_PS2_BUTTON2DOWN, 1221 MOUSE_PS2_BUTTON1DOWN | MOUSE_PS2_BUTTON2DOWN, 1222 MOUSE_PS2_BUTTON3DOWN, 1223 MOUSE_PS2_BUTTON1DOWN | MOUSE_PS2_BUTTON3DOWN, 1224 MOUSE_PS2_BUTTON2DOWN | MOUSE_PS2_BUTTON3DOWN, 1225 MOUSE_PS2_BUTTON1DOWN | MOUSE_PS2_BUTTON2DOWN | MOUSE_PS2_BUTTON3DOWN, 1226 }; 1227 static unsigned char butmapmsc[8] = { 1228 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 1229 MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP, 1230 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON3UP, 1231 MOUSE_MSC_BUTTON3UP, 1232 MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP, 1233 MOUSE_MSC_BUTTON2UP, 1234 MOUSE_MSC_BUTTON1UP, 1235 0, 1236 }; 1237 int mapped; 1238 int i; 1239 1240 if (sc->mode.level == PSM_LEVEL_BASE) { 1241 mapped = status->button & ~MOUSE_BUTTON4DOWN; 1242 if (status->button & MOUSE_BUTTON4DOWN) 1243 mapped |= MOUSE_BUTTON1DOWN; 1244 status->button = mapped; 1245 buf[0] = MOUSE_PS2_SYNC | butmapps2[mapped & MOUSE_STDBUTTONS]; 1246 i = max(min(status->dx, 255), -256); 1247 if (i < 0) 1248 buf[0] |= MOUSE_PS2_XNEG; 1249 buf[1] = i; 1250 i = max(min(status->dy, 255), -256); 1251 if (i < 0) 1252 buf[0] |= MOUSE_PS2_YNEG; 1253 buf[2] = i; 1254 return MOUSE_PS2_PACKETSIZE; 1255 } else if (sc->mode.level == PSM_LEVEL_STANDARD) { 1256 buf[0] = MOUSE_MSC_SYNC | butmapmsc[status->button & MOUSE_STDBUTTONS]; 1257 i = max(min(status->dx, 255), -256); 1258 buf[1] = i >> 1; 1259 buf[3] = i - buf[1]; 1260 i = max(min(status->dy, 255), -256); 1261 buf[2] = i >> 1; 1262 buf[4] = i - buf[2]; 1263 i = max(min(status->dz, 127), -128); 1264 buf[5] = (i >> 1) & 0x7f; 1265 buf[6] = (i - (i >> 1)) & 0x7f; 1266 buf[7] = (~status->button >> 3) & 0x7f; 1267 return MOUSE_SYS_PACKETSIZE; 1268 } 1269 return sc->inputbytes;; 1270} 1271 1272static int 1273psmread(dev_t dev, struct uio *uio, int flag) 1274{ 1275 register struct psm_softc *sc = PSM_SOFTC(PSM_UNIT(dev)); 1276 unsigned char buf[PSM_SMALLBUFSIZE]; 1277 int error = 0; 1278 int s; 1279 int l; 1280 1281 if ((sc->state & PSM_VALID) == 0) 1282 return EIO; 1283 1284 /* block until mouse activity occured */ 1285 s = spltty(); 1286 while (sc->queue.count <= 0) { 1287 if (PSM_NBLOCKIO(dev)) { 1288 splx(s); 1289 return EWOULDBLOCK; 1290 } 1291 sc->state |= PSM_ASLP; 1292 error = tsleep((caddr_t) sc, PZERO | PCATCH, "psmrea", 0); 1293 sc->state &= ~PSM_ASLP; 1294 if (error) { 1295 splx(s); 1296 return error; 1297 } else if ((sc->state & PSM_VALID) == 0) { 1298 /* the device disappeared! */ 1299 splx(s); 1300 return EIO; 1301 } 1302 } 1303 splx(s); 1304 1305 /* copy data to the user land */ 1306 while ((sc->queue.count > 0) && (uio->uio_resid > 0)) { 1307 s = spltty(); 1308 l = min(sc->queue.count, uio->uio_resid); 1309 if (l > sizeof(buf)) 1310 l = sizeof(buf); 1311 if (l > sizeof(sc->queue.buf) - sc->queue.head) { 1312 bcopy(&sc->queue.buf[sc->queue.head], &buf[0], 1313 sizeof(sc->queue.buf) - sc->queue.head); 1314 bcopy(&sc->queue.buf[0], 1315 &buf[sizeof(sc->queue.buf) - sc->queue.head], 1316 l - (sizeof(sc->queue.buf) - sc->queue.head)); 1317 } else { 1318 bcopy(&sc->queue.buf[sc->queue.head], &buf[0], l); 1319 } 1320 sc->queue.count -= l; 1321 sc->queue.head = (sc->queue.head + l) % sizeof(sc->queue.buf); 1322 splx(s); 1323 error = uiomove(buf, l, uio); 1324 if (error) 1325 break; 1326 } 1327 1328 return error; 1329} 1330 1331static int 1332block_mouse_data(struct psm_softc *sc, int *c) 1333{ 1334 int s; 1335 1336 if (!kbdc_lock(sc->kbdc, TRUE)) 1337 return EIO; 1338 1339 s = spltty(); 1340 *c = get_controller_command_byte(sc->kbdc); 1341 if ((*c == -1) 1342 || !set_controller_command_byte(sc->kbdc, 1343 kbdc_get_device_mask(sc->kbdc), 1344 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 1345 | KBD_ENABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 1346 /* this is CONTROLLER ERROR */ 1347 splx(s); 1348 kbdc_lock(sc->kbdc, FALSE); 1349 return EIO; 1350 } 1351 1352 /* 1353 * The device may be in the middle of status data transmission. 1354 * The transmission will be interrupted, thus, incomplete status 1355 * data must be discarded. Although the aux interrupt is disabled 1356 * at the keyboard controller level, at most one aux interrupt 1357 * may have already been pending and a data byte is in the 1358 * output buffer; throw it away. Note that the second argument 1359 * to `empty_aux_buffer()' is zero, so that the call will just 1360 * flush the internal queue. 1361 * `psmintr()' will be invoked after `splx()' if an interrupt is 1362 * pending; it will see no data and returns immediately. 1363 */ 1364 empty_aux_buffer(sc->kbdc, 0); /* flush the queue */ 1365 read_aux_data_no_wait(sc->kbdc); /* throw away data if any */ 1366 sc->inputbytes = 0; 1367 splx(s); 1368 1369 return 0; 1370} 1371 1372static int 1373unblock_mouse_data(struct psm_softc *sc, int c) 1374{ 1375 int error = 0; 1376 1377 /* 1378 * We may have seen a part of status data during `set_mouse_XXX()'. 1379 * they have been queued; flush it. 1380 */ 1381 empty_aux_buffer(sc->kbdc, 0); 1382 1383 /* restore ports and interrupt */ 1384 if (!set_controller_command_byte(sc->kbdc, 1385 kbdc_get_device_mask(sc->kbdc), 1386 c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) { 1387 /* CONTROLLER ERROR; this is serious, we may have 1388 * been left with the inaccessible keyboard and 1389 * the disabled mouse interrupt. 1390 */ 1391 error = EIO; 1392 } 1393 1394 kbdc_lock(sc->kbdc, FALSE); 1395 return error; 1396} 1397 1398static int 1399psmioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) 1400{ 1401 struct psm_softc *sc = PSM_SOFTC(PSM_UNIT(dev)); 1402 mousemode_t mode; 1403 mousestatus_t status; 1404#if (defined(MOUSE_GETVARS)) 1405 mousevar_t *var; 1406#endif 1407 mousedata_t *data; 1408 int stat[3]; 1409 int command_byte; 1410 int error = 0; 1411 int s; 1412 1413 /* Perform IOCTL command */ 1414 switch (cmd) { 1415 1416 case OLD_MOUSE_GETHWINFO: 1417 s = spltty(); 1418 ((old_mousehw_t *)addr)->buttons = sc->hw.buttons; 1419 ((old_mousehw_t *)addr)->iftype = sc->hw.iftype; 1420 ((old_mousehw_t *)addr)->type = sc->hw.type; 1421 ((old_mousehw_t *)addr)->hwid = sc->hw.hwid; 1422 splx(s); 1423 break; 1424 1425 case MOUSE_GETHWINFO: 1426 s = spltty(); 1427 *(mousehw_t *)addr = sc->hw; 1428 if (sc->mode.level == PSM_LEVEL_BASE) 1429 ((mousehw_t *)addr)->model = MOUSE_MODEL_GENERIC; 1430 splx(s); 1431 break; 1432 1433 case OLD_MOUSE_GETMODE: 1434 s = spltty(); 1435 switch (sc->mode.level) { 1436 case PSM_LEVEL_BASE: 1437 ((old_mousemode_t *)addr)->protocol = MOUSE_PROTO_PS2; 1438 break; 1439 case PSM_LEVEL_STANDARD: 1440 ((old_mousemode_t *)addr)->protocol = MOUSE_PROTO_SYSMOUSE; 1441 break; 1442 case PSM_LEVEL_NATIVE: 1443 ((old_mousemode_t *)addr)->protocol = MOUSE_PROTO_PS2; 1444 break; 1445 } 1446 ((old_mousemode_t *)addr)->rate = sc->mode.rate; 1447 ((old_mousemode_t *)addr)->resolution = sc->mode.resolution; 1448 ((old_mousemode_t *)addr)->accelfactor = sc->mode.accelfactor; 1449 splx(s); 1450 break; 1451 1452 case MOUSE_GETMODE: 1453 s = spltty(); 1454 *(mousemode_t *)addr = sc->mode; 1455 ((mousemode_t *)addr)->resolution = 1456 MOUSE_RES_LOW - sc->mode.resolution; 1457 switch (sc->mode.level) { 1458 case PSM_LEVEL_BASE: 1459 ((mousemode_t *)addr)->protocol = MOUSE_PROTO_PS2; 1460 ((mousemode_t *)addr)->packetsize = MOUSE_PS2_PACKETSIZE; 1461 break; 1462 case PSM_LEVEL_STANDARD: 1463 ((mousemode_t *)addr)->protocol = MOUSE_PROTO_SYSMOUSE; 1464 ((mousemode_t *)addr)->packetsize = MOUSE_SYS_PACKETSIZE; 1465 ((mousemode_t *)addr)->syncmask[0] = MOUSE_SYS_SYNCMASK; 1466 ((mousemode_t *)addr)->syncmask[1] = MOUSE_SYS_SYNC; 1467 break; 1468 case PSM_LEVEL_NATIVE: 1469 /* FIXME: this isn't quite correct... XXX */ 1470 ((mousemode_t *)addr)->protocol = MOUSE_PROTO_PS2; 1471 break; 1472 } 1473 splx(s); 1474 break; 1475 1476 case OLD_MOUSE_SETMODE: 1477 case MOUSE_SETMODE: 1478 if (cmd == OLD_MOUSE_SETMODE) { 1479 mode.rate = ((old_mousemode_t *)addr)->rate; 1480 /* 1481 * resolution old I/F new I/F 1482 * default 0 0 1483 * low 1 -2 1484 * medium low 2 -3 1485 * medium high 3 -4 1486 * high 4 -5 1487 */ 1488 if (((old_mousemode_t *)addr)->resolution > 0) 1489 mode.resolution = -((old_mousemode_t *)addr)->resolution - 1; 1490 mode.accelfactor = ((old_mousemode_t *)addr)->accelfactor; 1491 mode.level = -1; 1492 } else { 1493 mode = *(mousemode_t *)addr; 1494 } 1495 1496 /* adjust and validate parameters. */ 1497 if (mode.rate > UCHAR_MAX) 1498 return EINVAL; 1499 if (mode.rate == 0) 1500 mode.rate = sc->dflt_mode.rate; 1501 else if (mode.rate == -1) 1502 /* don't change the current setting */ 1503 ; 1504 else if (mode.rate < 0) 1505 return EINVAL; 1506 if (mode.resolution >= UCHAR_MAX) 1507 return EINVAL; 1508 if (mode.resolution >= 200) 1509 mode.resolution = MOUSE_RES_HIGH; 1510 else if (mode.resolution >= 100) 1511 mode.resolution = MOUSE_RES_MEDIUMHIGH; 1512 else if (mode.resolution >= 50) 1513 mode.resolution = MOUSE_RES_MEDIUMLOW; 1514 else if (mode.resolution > 0) 1515 mode.resolution = MOUSE_RES_LOW; 1516 if (mode.resolution == MOUSE_RES_DEFAULT) 1517 mode.resolution = sc->dflt_mode.resolution; 1518 else if (mode.resolution == -1) 1519 /* don't change the current setting */ 1520 ; 1521 else if (mode.resolution < 0) /* MOUSE_RES_LOW/MEDIUM/HIGH */ 1522 mode.resolution = MOUSE_RES_LOW - mode.resolution; 1523 if (mode.level == -1) 1524 /* don't change the current setting */ 1525 mode.level = sc->mode.level; 1526 else if ((mode.level < PSM_LEVEL_MIN) || (mode.level > PSM_LEVEL_MAX)) 1527 return EINVAL; 1528 if (mode.accelfactor == -1) 1529 /* don't change the current setting */ 1530 mode.accelfactor = sc->mode.accelfactor; 1531 else if (mode.accelfactor < 0) 1532 return EINVAL; 1533 1534 /* don't allow anybody to poll the keyboard controller */ 1535 error = block_mouse_data(sc, &command_byte); 1536 if (error) 1537 return error; 1538 1539 /* set mouse parameters */ 1540 if (mode.rate > 0) 1541 mode.rate = set_mouse_sampling_rate(sc->kbdc, mode.rate); 1542 if (mode.resolution >= 0) 1543 mode.resolution = set_mouse_resolution(sc->kbdc, mode.resolution); 1544 set_mouse_scaling(sc->kbdc, 1); 1545 get_mouse_status(sc->kbdc, stat, 0, 3); 1546 1547 s = spltty(); 1548 sc->mode.rate = mode.rate; 1549 sc->mode.resolution = mode.resolution; 1550 sc->mode.accelfactor = mode.accelfactor; 1551 sc->mode.level = mode.level; 1552 splx(s); 1553 1554 unblock_mouse_data(sc, command_byte); 1555 break; 1556 1557 case MOUSE_GETLEVEL: 1558 *(int *)addr = sc->mode.level; 1559 break; 1560 1561 case MOUSE_SETLEVEL: 1562 if ((*(int *)addr < PSM_LEVEL_MIN) || (*(int *)addr > PSM_LEVEL_MAX)) 1563 return EINVAL; 1564 sc->mode.level = *(int *)addr; 1565 break; 1566 1567 case MOUSE_GETSTATUS: 1568 s = spltty(); 1569 status = sc->status; 1570 sc->status.flags = 0; 1571 sc->status.obutton = sc->status.button; 1572 sc->status.button = 0; 1573 sc->status.dx = 0; 1574 sc->status.dy = 0; 1575 sc->status.dz = 0; 1576 splx(s); 1577 *(mousestatus_t *)addr = status; 1578 break; 1579 1580#if (defined(MOUSE_GETVARS)) 1581 case MOUSE_GETVARS: 1582 var = (mousevar_t *)addr; 1583 bzero(var, sizeof(*var)); 1584 s = spltty(); 1585 var->var[0] = MOUSE_VARS_PS2_SIG; 1586 var->var[1] = sc->config; 1587 var->var[2] = sc->flags; 1588 splx(s); 1589 break; 1590 1591 case MOUSE_SETVARS: 1592 return ENODEV; 1593#endif /* MOUSE_GETVARS */ 1594 1595 case MOUSE_READSTATE: 1596 case MOUSE_READDATA: 1597 data = (mousedata_t *)addr; 1598 if (data->len > sizeof(data->buf)/sizeof(data->buf[0])) 1599 return EINVAL; 1600 1601 error = block_mouse_data(sc, &command_byte); 1602 if (error) 1603 return error; 1604 if ((data->len = get_mouse_status(sc->kbdc, data->buf, 1605 (cmd == MOUSE_READDATA) ? 1 : 0, data->len)) <= 0) 1606 error = EIO; 1607 unblock_mouse_data(sc, command_byte); 1608 break; 1609 1610#if (defined(MOUSE_SETRESOLUTION)) 1611 case MOUSE_SETRESOLUTION: 1612 mode.resolution = *(int *)addr; 1613 if (mode.resolution >= UCHAR_MAX) 1614 return EINVAL; 1615 else if (mode.resolution >= 200) 1616 mode.resolution = MOUSE_RES_HIGH; 1617 else if (mode.resolution >= 100) 1618 mode.resolution = MOUSE_RES_MEDIUMHIGH; 1619 else if (mode.resolution >= 50) 1620 mode.resolution = MOUSE_RES_MEDIUMLOW; 1621 else if (mode.resolution > 0) 1622 mode.resolution = MOUSE_RES_LOW; 1623 if (mode.resolution == MOUSE_RES_DEFAULT) 1624 mode.resolution = sc->dflt_mode.resolution; 1625 else if (mode.resolution == -1) 1626 mode.resolution = sc->mode.resolution; 1627 else if (mode.resolution < 0) /* MOUSE_RES_LOW/MEDIUM/HIGH */ 1628 mode.resolution = MOUSE_RES_LOW - mode.resolution; 1629 1630 error = block_mouse_data(sc, &command_byte); 1631 if (error) 1632 return error; 1633 sc->mode.resolution = set_mouse_resolution(sc->kbdc, mode.resolution); 1634 if (sc->mode.resolution != mode.resolution) 1635 error = EIO; 1636 unblock_mouse_data(sc, command_byte); 1637 break; 1638#endif /* MOUSE_SETRESOLUTION */ 1639 1640#if (defined(MOUSE_SETRATE)) 1641 case MOUSE_SETRATE: 1642 mode.rate = *(int *)addr; 1643 if (mode.rate > UCHAR_MAX) 1644 return EINVAL; 1645 if (mode.rate == 0) 1646 mode.rate = sc->dflt_mode.rate; 1647 else if (mode.rate < 0) 1648 mode.rate = sc->mode.rate; 1649 1650 error = block_mouse_data(sc, &command_byte); 1651 if (error) 1652 return error; 1653 sc->mode.rate = set_mouse_sampling_rate(sc->kbdc, mode.rate); 1654 if (sc->mode.rate != mode.rate) 1655 error = EIO; 1656 unblock_mouse_data(sc, command_byte); 1657 break; 1658#endif /* MOUSE_SETRATE */ 1659 1660#if (defined(MOUSE_SETSCALING)) 1661 case MOUSE_SETSCALING: 1662 if ((*(int *)addr <= 0) || (*(int *)addr > 2)) 1663 return EINVAL; 1664 1665 error = block_mouse_data(sc, &command_byte); 1666 if (error) 1667 return error; 1668 if (!set_mouse_scaling(sc->kbdc, *(int *)addr)) 1669 error = EIO; 1670 unblock_mouse_data(sc, command_byte); 1671 break; 1672#endif /* MOUSE_SETSCALING */ 1673 1674#if (defined(MOUSE_GETHWID)) 1675 case MOUSE_GETHWID: 1676 error = block_mouse_data(sc, &command_byte); 1677 if (error) 1678 return error; 1679 sc->hw.hwid = get_aux_id(sc->kbdc); 1680 *(int *)addr = sc->hw.hwid; 1681 unblock_mouse_data(sc, command_byte); 1682 break; 1683#endif /* MOUSE_GETHWID */ 1684 1685 default: 1686 return ENOTTY; 1687 } 1688 1689 return error; 1690} 1691 1692static void 1693psmintr(void *arg) 1694{ 1695 /* 1696 * the table to turn PS/2 mouse button bits (MOUSE_PS2_BUTTON?DOWN) 1697 * into `mousestatus' button bits (MOUSE_BUTTON?DOWN). 1698 */ 1699 static int butmap[8] = { 1700 0, 1701 MOUSE_BUTTON1DOWN, 1702 MOUSE_BUTTON3DOWN, 1703 MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN, 1704 MOUSE_BUTTON2DOWN, 1705 MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN, 1706 MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN, 1707 MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN 1708 }; 1709 register struct psm_softc *sc = arg; 1710 mousestatus_t ms; 1711 int x, y, z; 1712 int c; 1713 int l; 1714 1715 /* read until there is nothing to read */ 1716 while((c = read_aux_data_no_wait(sc->kbdc)) != -1) { 1717 1718 /* discard the byte if the device is not open */ 1719 if ((sc->state & PSM_OPEN) == 0) 1720 continue; 1721 1722 /* 1723 * Check sync bits. We check for overflow bits and the bit 3 1724 * for most mice. True, the code doesn't work if overflow 1725 * condition occurs. But we expect it rarely happens... 1726 */ 1727 if ((sc->inputbytes == 0) 1728 && ((c & sc->mode.syncmask[0]) != sc->mode.syncmask[1])) { 1729 log(LOG_DEBUG, "psmintr: out of sync (%04x != %04x).\n", 1730 c & sc->mode.syncmask[0], sc->mode.syncmask[1]); 1731 continue; 1732 } 1733 1734 sc->ipacket[sc->inputbytes++] = c; 1735 if (sc->inputbytes < sc->mode.packetsize) 1736 continue; 1737 1738#if 0 1739 log(LOG_DEBUG, "psmintr: %02x %02x %02x %02x %02x %02x\n", 1740 sc->ipacket[0], sc->ipacket[1], sc->ipacket[2], 1741 sc->ipacket[3], sc->ipacket[4], sc->ipacket[5]); 1742#endif 1743 1744 c = sc->ipacket[0]; 1745 1746 /* 1747 * A kludge for Kensington device! 1748 * The MSB of the horizontal count appears to be stored in 1749 * a strange place. This kludge doesn't affect other mice 1750 * because the bit is the overflow bit which is, in most cases, 1751 * expected to be zero when we reach here. XXX 1752 */ 1753 sc->ipacket[1] |= (c & MOUSE_PS2_XOVERFLOW) ? 0x80 : 0; 1754 1755 /* ignore the overflow bits... */ 1756 x = (c & MOUSE_PS2_XNEG) ? sc->ipacket[1] - 256 : sc->ipacket[1]; 1757 y = (c & MOUSE_PS2_YNEG) ? sc->ipacket[2] - 256 : sc->ipacket[2]; 1758 z = 0; 1759 ms.obutton = sc->button; /* previous button state */ 1760 ms.button = butmap[c & MOUSE_PS2_BUTTONS]; 1761 1762 switch (sc->hw.model) { 1763 1764 case MOUSE_MODEL_INTELLI: 1765 case MOUSE_MODEL_NET: 1766 /* wheel data is in the fourth byte */ 1767 z = (char)sc->ipacket[3]; 1768 break; 1769 1770 case MOUSE_MODEL_MOUSEMANPLUS: 1771 if ((c & ~MOUSE_PS2_BUTTONS) == 0xc8) { 1772 /* the extended data packet encodes button and wheel events */ 1773 x = y = 0; 1774 z = (sc->ipacket[1] & MOUSE_PS2PLUS_ZNEG) 1775 ? (sc->ipacket[2] & 0x0f) - 16 : (sc->ipacket[2] & 0x0f); 1776 ms.button |= (sc->ipacket[2] & MOUSE_PS2PLUS_BUTTON4DOWN) 1777 ? MOUSE_BUTTON4DOWN : 0; 1778 } else { 1779 /* preserve button states */ 1780 ms.button |= ms.obutton & MOUSE_EXTBUTTONS; 1781 } 1782 break; 1783 1784 case MOUSE_MODEL_GLIDEPOINT: 1785 /* `tapping' action */ 1786 ms.button |= ((c & MOUSE_PS2_TAP)) ? 0 : MOUSE_BUTTON4DOWN; 1787 break; 1788 1789 case MOUSE_MODEL_NETSCROLL: 1790 /* three addtional bytes encode button and wheel events */ 1791 ms.button |= (sc->ipacket[3] & MOUSE_PS2_BUTTON3DOWN) 1792 ? MOUSE_BUTTON4DOWN : 0; 1793 z = (sc->ipacket[3] & MOUSE_PS2_XNEG) 1794 ? sc->ipacket[4] - 256 : sc->ipacket[4]; 1795 break; 1796 1797 case MOUSE_MODEL_THINK: 1798 /* the fourth button state in the first byte */ 1799 ms.button |= (c & MOUSE_PS2_TAP) ? MOUSE_BUTTON4DOWN : 0; 1800 break; 1801 1802 case MOUSE_MODEL_GENERIC: 1803 default: 1804 break; 1805 } 1806 1807 /* scale values */ 1808 if (sc->mode.accelfactor >= 1) { 1809 if (x != 0) { 1810 x = x * x / sc->mode.accelfactor; 1811 if (x == 0) 1812 x = 1; 1813 if (c & MOUSE_PS2_XNEG) 1814 x = -x; 1815 } 1816 if (y != 0) { 1817 y = y * y / sc->mode.accelfactor; 1818 if (y == 0) 1819 y = 1; 1820 if (c & MOUSE_PS2_YNEG) 1821 y = -y; 1822 } 1823 } 1824 1825 ms.dx = x; 1826 ms.dy = y; 1827 ms.dz = z; 1828 ms.flags = ((x || y || z) ? MOUSE_POSCHANGED : 0) 1829 | (ms.obutton ^ ms.button); 1830 1831 if (sc->mode.level < PSM_LEVEL_NATIVE) 1832 sc->inputbytes = tame_mouse(sc, &ms, sc->ipacket); 1833 1834 sc->status.flags |= ms.flags; 1835 sc->status.dx += ms.dx; 1836 sc->status.dy += ms.dy; 1837 sc->status.dz += ms.dz; 1838 sc->status.button = ms.button; 1839 sc->button = ms.button; 1840 1841 /* queue data */ 1842 if (sc->queue.count + sc->inputbytes < sizeof(sc->queue.buf)) { 1843 l = min(sc->inputbytes, sizeof(sc->queue.buf) - sc->queue.tail); 1844 bcopy(&sc->ipacket[0], &sc->queue.buf[sc->queue.tail], l); 1845 if (sc->inputbytes > l) 1846 bcopy(&sc->ipacket[l], &sc->queue.buf[0], sc->inputbytes - l); 1847 sc->queue.tail = 1848 (sc->queue.tail + sc->inputbytes) % sizeof(sc->queue.buf); 1849 sc->queue.count += sc->inputbytes; 1850 } 1851 sc->inputbytes = 0; 1852 1853 if (sc->state & PSM_ASLP) { 1854 sc->state &= ~PSM_ASLP; 1855 wakeup((caddr_t) sc); 1856 } 1857 selwakeup(&sc->rsel); 1858 } 1859} 1860 1861static int 1862psmpoll(dev_t dev, int events, struct proc *p) 1863{ 1864 struct psm_softc *sc = PSM_SOFTC(PSM_UNIT(dev)); 1865 int s; 1866 int revents = 0; 1867 1868 /* Return true if a mouse event available */ 1869 s = spltty(); 1870 if (events & (POLLIN | POLLRDNORM)) 1871 if (sc->queue.count > 0) 1872 revents |= events & (POLLIN | POLLRDNORM); 1873 else 1874 selrecord(p, &sc->rsel); 1875 1876 splx(s); 1877 1878 return (revents); 1879} 1880 1881/* vendor/model specific routines */ 1882 1883static int mouse_id_proc1(KBDC kbdc, int res, int scale, int *status) 1884{ 1885 if (set_mouse_resolution(kbdc, res) != res) 1886 return FALSE; 1887 if (set_mouse_scaling(kbdc, scale) 1888 && set_mouse_scaling(kbdc, scale) 1889 && set_mouse_scaling(kbdc, scale) 1890 && (get_mouse_status(kbdc, status, 0, 3) >= 3)) 1891 return TRUE; 1892 return FALSE; 1893} 1894 1895#if notyet 1896/* Logitech MouseMan Cordless II */ 1897static int 1898enable_lcordless(struct psm_softc *sc) 1899{ 1900 int status[3]; 1901 int ch; 1902 1903 if (!mouse_id_proc1(sc->kbdc, PSMD_RES_HIGH, 2, status)) 1904 return FALSE; 1905 if (status[1] == PSMD_RES_HIGH) 1906 return FALSE; 1907 ch = (status[0] & 0x07) - 1; /* channel # */ 1908 if ((ch <= 0) || (ch > 4)) 1909 return FALSE; 1910 /* 1911 * status[1]: always one? 1912 * status[2]: battery status? (0-100) 1913 */ 1914 return TRUE; 1915} 1916#endif /* notyet */ 1917 1918/* Genius NetScroll Mouse */ 1919static int 1920enable_groller(struct psm_softc *sc) 1921{ 1922 int status[3]; 1923 1924 /* 1925 * The special sequence to enable the fourth button and the 1926 * roller. Immediately after this sequence check status bytes. 1927 * if the mouse is NetScroll, the second and the third bytes are 1928 * '3' and 'D'. 1929 */ 1930 1931 /* 1932 * If the mouse is an ordinary PS/2 mouse, the status bytes should 1933 * look like the following. 1934 * 1935 * byte 1 bit 7 always 0 1936 * bit 6 stream mode (0) 1937 * bit 5 disabled (0) 1938 * bit 4 1:1 scaling (0) 1939 * bit 3 always 0 1940 * bit 0-2 button status 1941 * byte 2 resolution (PSMD_RES_HIGH) 1942 * byte 3 report rate (?) 1943 */ 1944 1945 if (!mouse_id_proc1(sc->kbdc, PSMD_RES_HIGH, 1, status)) 1946 return FALSE; 1947 if ((status[1] != '3') || (status[2] != 'D')) 1948 return FALSE; 1949 /* FIXME!! */ 1950 sc->hw.buttons = get_mouse_buttons(sc->kbdc); 1951 sc->hw.buttons = 4; 1952 return TRUE; 1953} 1954 1955/* Genius NetMouse/NetMouse Pro */ 1956static int 1957enable_gmouse(struct psm_softc *sc) 1958{ 1959 int status[3]; 1960 1961 /* 1962 * The special sequence to enable the middle, "rubber" button. 1963 * Immediately after this sequence check status bytes. 1964 * if the mouse is NetMouse, NetMouse Pro, or ASCII MIE Mouse, 1965 * the second and the third bytes are '3' and 'U'. 1966 * NOTE: NetMouse reports that it has three buttons although it has 1967 * two buttons and a rubber button. NetMouse Pro and MIE Mouse 1968 * say they have three buttons too and they do have a button on the 1969 * side... 1970 */ 1971 if (!mouse_id_proc1(sc->kbdc, PSMD_RES_HIGH, 1, status)) 1972 return FALSE; 1973 if ((status[1] != '3') || (status[2] != 'U')) 1974 return FALSE; 1975 return TRUE; 1976} 1977 1978/* ALPS GlidePoint */ 1979static int 1980enable_aglide(struct psm_softc *sc) 1981{ 1982 int status[3]; 1983 1984 /* 1985 * The special sequence to obtain ALPS GlidePoint specific 1986 * information. Immediately after this sequence, status bytes will 1987 * contain something interesting. 1988 * NOTE: ALPS produces several models of GlidePoint. Some of those 1989 * do not respond to this sequence, thus, cannot be detected this way. 1990 */ 1991 if (!mouse_id_proc1(sc->kbdc, PSMD_RES_LOW, 2, status)) 1992 return FALSE; 1993 if ((status[0] & 0x10) || (status[1] == PSMD_RES_LOW)) 1994 return FALSE; 1995 return TRUE; 1996} 1997 1998/* Kensington ThinkingMouse/Trackball */ 1999static int 2000enable_kmouse(struct psm_softc *sc) 2001{ 2002 static unsigned char rate[] = { 20, 60, 40, 20, 20, 60, 40, 20, 20 }; 2003 KBDC kbdc = sc->kbdc; 2004 int status[3]; 2005 int id1; 2006 int id2; 2007 int i; 2008 2009 id1 = get_aux_id(kbdc); 2010 if (set_mouse_sampling_rate(kbdc, 10) != 10) 2011 return FALSE; 2012 /* 2013 * The device is now in the native mode? It returns a different 2014 * ID value... 2015 */ 2016 id2 = get_aux_id(kbdc); 2017 if ((id1 == id2) || (id2 != 2)) 2018 return FALSE; 2019 2020 if (set_mouse_resolution(kbdc, PSMD_RES_LOW) != PSMD_RES_LOW) 2021 return FALSE; 2022#if PSM_DEBUG >= 2 2023 /* at this point, resolution is LOW, sampling rate is 10/sec */ 2024 if (get_mouse_status(kbdc, status, 0, 3) < 3) 2025 return FALSE; 2026#endif 2027 2028 /* 2029 * The special sequence to enable the third and fourth buttons. 2030 * Otherwise they behave like the first and second buttons. 2031 */ 2032 for (i = 0; i < sizeof(rate)/sizeof(rate[0]); ++i) { 2033 if (set_mouse_sampling_rate(kbdc, rate[i]) != rate[i]) 2034 return FALSE; 2035 } 2036 2037 /* 2038 * At this point, the device is using default resolution and 2039 * sampling rate for the native mode. 2040 */ 2041 if (get_mouse_status(kbdc, status, 0, 3) < 3) 2042 return FALSE; 2043 if ((status[1] == PSMD_RES_LOW) || (status[2] == rate[i - 1])) 2044 return FALSE; 2045 2046 /* the device appears be enabled by this sequence, diable it for now */ 2047 disable_aux_dev(kbdc); 2048 empty_aux_buffer(kbdc, 5); 2049 2050 return TRUE; 2051} 2052 2053/* Logitech MouseMan+/FirstMouse+ */ 2054static int 2055enable_mmanplus(struct psm_softc *sc) 2056{ 2057 static char res[] = { 2058 -1, PSMD_RES_LOW, PSMD_RES_HIGH, PSMD_RES_MEDIUM_HIGH, 2059 PSMD_RES_MEDIUM_LOW, -1, PSMD_RES_HIGH, PSMD_RES_MEDIUM_LOW, 2060 PSMD_RES_MEDIUM_HIGH, PSMD_RES_HIGH, 2061 }; 2062 KBDC kbdc = sc->kbdc; 2063 int data[3]; 2064 int i; 2065 2066 /* the special sequence to enable the fourth button and the roller. */ 2067 for (i = 0; i < sizeof(res)/sizeof(res[0]); ++i) { 2068 if (res[i] < 0) { 2069 if (!set_mouse_scaling(kbdc, 1)) 2070 return FALSE; 2071 } else { 2072 if (set_mouse_resolution(kbdc, res[i]) != res[i]) 2073 return FALSE; 2074 } 2075 } 2076 2077 if (get_mouse_status(kbdc, data, 1, 3) < 3) 2078 return FALSE; 2079 2080 /* 2081 * MouseMan+ and FirstMouse+ return following data. 2082 * 2083 * byte 1 0xc8 2084 * byte 2 ?? (MouseMan+:0xc2, FirstMouse+:0xc6) 2085 * byte 3 model ID? MouseMan+:0x50, FirstMouse+:0x51 2086 */ 2087 if ((data[0] & ~MOUSE_PS2_BUTTONS) != 0xc8) 2088 return FALSE; 2089 2090 /* 2091 * MouseMan+ (or FirstMouse+) is now in its native mode, in which 2092 * the wheel and the fourth button events are encoded in the 2093 * special data packet. The mouse may be put in the IntelliMouse mode 2094 * if it is initialized by the IntelliMouse's method. 2095 */ 2096 return TRUE; 2097} 2098 2099/* MS IntelliMouse */ 2100static int 2101enable_msintelli(struct psm_softc *sc) 2102{ 2103 /* 2104 * Logitech MouseMan+ and FirstMouse+ will also respond to this 2105 * probe routine and act like IntelliMouse. 2106 */ 2107 2108 static unsigned char rate[] = { 200, 100, 80, }; 2109 KBDC kbdc = sc->kbdc; 2110 int id; 2111 int i; 2112 2113 /* the special sequence to enable the third button and the roller. */ 2114 for (i = 0; i < sizeof(rate)/sizeof(rate[0]); ++i) { 2115 if (set_mouse_sampling_rate(kbdc, rate[i]) != rate[i]) 2116 return FALSE; 2117 } 2118 /* the device will give the genuine ID only after the above sequence */ 2119 id = get_aux_id(kbdc); 2120 if (id != PSM_INTELLI_ID) 2121 return FALSE; 2122 2123 sc->hw.hwid = id; 2124 sc->hw.buttons = 3; 2125 2126 return TRUE; 2127} 2128 2129#ifdef PSM_HOOKAPM 2130static int 2131psmresume(void *dummy) 2132{ 2133 struct psm_softc *sc = psm_softc[(int)dummy]; 2134 int unit = (int)dummy; 2135 int err = 0; 2136 int s; 2137 int c; 2138 2139 if (verbose >= 2) 2140 log(LOG_NOTICE, "psm%d: APM resume hook called.\n", unit); 2141 2142 /* don't let anybody mess with the aux device */ 2143 if (!kbdc_lock(sc->kbdc, TRUE)) 2144 return (EIO); 2145 s = spltty(); 2146 2147 /* save the current controller command byte */ 2148 empty_both_buffers(sc->kbdc, 10); 2149 c = get_controller_command_byte(sc->kbdc); 2150 if (verbose >= 2) 2151 log(LOG_DEBUG, "psm%d: current command byte: %04x (psmresume).\n", 2152 unit, c); 2153 2154 /* enable the aux port but disable the aux interrupt and the keyboard */ 2155 if ((c == -1) || !set_controller_command_byte(sc->kbdc, 2156 kbdc_get_device_mask(sc->kbdc), 2157 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT 2158 | KBD_ENABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 2159 /* CONTROLLER ERROR */ 2160 splx(s); 2161 kbdc_lock(sc->kbdc, FALSE); 2162 log(LOG_ERR, "psm%d: unable to set the command byte (psmresume).\n", 2163 unit); 2164 return (EIO); 2165 } 2166 2167 /* flush any data */ 2168 if (sc->state & PSM_VALID) { 2169 disable_aux_dev(sc->kbdc); /* this may fail; but never mind... */ 2170 empty_aux_buffer(sc->kbdc, 10); 2171 } 2172 sc->inputbytes = 0; 2173 2174#ifdef PSM_RESETAFTERSUSPEND 2175 /* try to detect the aux device; are you still there? */ 2176 if (reinitialize(unit, &sc->mode)) { 2177 /* yes */ 2178 sc->state |= PSM_VALID; 2179 } else { 2180 /* the device has gone! */ 2181 restore_controller(sc->kbdc, c); 2182 sc->state &= ~PSM_VALID; 2183 log(LOG_ERR, "psm%d: the aux device has gone! (psmresume).\n", 2184 unit); 2185 err = ENXIO; 2186 } 2187#endif /* PSM_RESETAFTERSUSPEND */ 2188 splx(s); 2189 2190 /* restore the driver state */ 2191 if ((sc->state & PSM_OPEN) && (err == 0)) { 2192 /* enable the aux device and the port again */ 2193 err = doopen(unit, c); 2194 if (err != 0) 2195 log(LOG_ERR, "psm%d: failed to enable the device (psmresume).\n", 2196 unit); 2197 } else { 2198 /* restore the keyboard port and disable the aux port */ 2199 if (!set_controller_command_byte(sc->kbdc, 2200 kbdc_get_device_mask(sc->kbdc), 2201 (c & KBD_KBD_CONTROL_BITS) 2202 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) { 2203 /* CONTROLLER ERROR */ 2204 log(LOG_ERR, "psm%d: failed to disable the aux port (psmresume).\n", 2205 unit); 2206 err = EIO; 2207 } 2208 } 2209 2210 /* done */ 2211 kbdc_lock(sc->kbdc, FALSE); 2212 if ((sc->state & PSM_ASLP) && !(sc->state & PSM_VALID)) { 2213 /* 2214 * Release the blocked process; it must be notified that the device 2215 * cannot be accessed anymore. 2216 */ 2217 sc->state &= ~PSM_ASLP; 2218 wakeup((caddr_t)sc); 2219 } 2220 2221 if (verbose >= 2) 2222 log(LOG_DEBUG, "psm%d: APM resume hook exiting.\n", unit); 2223 2224 return (err); 2225} 2226#endif /* PSM_HOOKAPM */ 2227 2228CDEV_DRIVER_MODULE(psm, atkbdc, psm_driver, psm_devclass, 2229 CDEV_MAJOR, psm_cdevsw, 0, 0); 2230 2231#endif /* NPSM > 0 */ 2232