129}; 130 131static int si_Nports; 132static int si_Nmodules; 133static int si_debug = 0; /* data, not bss, so it's patchable */ 134 135SYSCTL_INT(_machdep, OID_AUTO, si_debug, CTLFLAG_RW, &si_debug, 0, ""); 136TUNABLE_INT("machdep.si_debug", &si_debug); 137 138static int si_numunits; 139 140devclass_t si_devclass; 141 142#ifndef B2000 /* not standard, but the hardware knows it. */ 143# define B2000 2000 144#endif 145static struct speedtab bdrates[] = { 146 { B75, CLK75, }, /* 0x0 */ 147 { B110, CLK110, }, /* 0x1 */ 148 { B150, CLK150, }, /* 0x3 */ 149 { B300, CLK300, }, /* 0x4 */ 150 { B600, CLK600, }, /* 0x5 */ 151 { B1200, CLK1200, }, /* 0x6 */ 152 { B2000, CLK2000, }, /* 0x7 */ 153 { B2400, CLK2400, }, /* 0x8 */ 154 { B4800, CLK4800, }, /* 0x9 */ 155 { B9600, CLK9600, }, /* 0xb */ 156 { B19200, CLK19200, }, /* 0xc */ 157 { B38400, CLK38400, }, /* 0x2 (out of order!) */ 158 { B57600, CLK57600, }, /* 0xd */ 159 { B115200, CLK110, }, /* 0x1 (dupe!, 110 baud on "si") */ 160 { -1, -1 }, 161}; 162 163 164/* populated with approx character/sec rates - translated at card 165 * initialisation time to chars per tick of the clock */ 166static int done_chartimes = 0; 167static struct speedtab chartimes[] = { 168 { B75, 8, }, 169 { B110, 11, }, 170 { B150, 15, }, 171 { B300, 30, }, 172 { B600, 60, }, 173 { B1200, 120, }, 174 { B2000, 200, }, 175 { B2400, 240, }, 176 { B4800, 480, }, 177 { B9600, 960, }, 178 { B19200, 1920, }, 179 { B38400, 3840, }, 180 { B57600, 5760, }, 181 { B115200, 11520, }, 182 { -1, -1 }, 183}; 184static volatile int in_intr = 0; /* Inside interrupt handler? */ 185 186#ifdef POLL 187static int si_pollrate; /* in addition to irq */ 188static int si_realpoll = 0; /* poll HW on timer */ 189 190SYSCTL_INT(_machdep, OID_AUTO, si_pollrate, CTLFLAG_RW, &si_pollrate, 0, ""); 191SYSCTL_INT(_machdep, OID_AUTO, si_realpoll, CTLFLAG_RW, &si_realpoll, 0, ""); 192 193static int init_finished = 0; 194static void si_poll(void *); 195#endif 196 197/* 198 * Array of adapter types and the corresponding RAM size. The order of 199 * entries here MUST match the ordinal of the adapter type. 200 */ 201static char *si_type[] = { 202 "EMPTY", 203 "SIHOST", 204 "SIMCA", /* FreeBSD does not support Microchannel */ 205 "SIHOST2", 206 "SIEISA", 207 "SIPCI", 208 "SXPCI", 209 "SXISA", 210}; 211 212/* 213 * We have to make an 8 bit version of bcopy, since some cards can't 214 * deal with 32 bit I/O 215 */ 216static void __inline 217si_bcopy(const void *src, void *dst, size_t len) 218{ 219 while (len--) 220 *(((u_char *)dst)++) = *(((const u_char *)src)++); 221} 222static void __inline 223si_vbcopy(const volatile void *src, void *dst, size_t len) 224{ 225 while (len--) 226 *(((u_char *)dst)++) = *(((const volatile u_char *)src)++); 227} 228static void __inline 229si_bcopyv(const void *src, volatile void *dst, size_t len) 230{ 231 while (len--) 232 *(((volatile u_char *)dst)++) = *(((const u_char *)src)++); 233} 234 235 236/* 237 * Attach the device. Initialize the card. 238 */ 239int 240siattach(device_t dev) 241{ 242 int unit; 243 struct si_softc *sc; 244 struct si_port *pp; 245 volatile struct si_channel *ccbp; 246 volatile struct si_reg *regp; 247 volatile caddr_t maddr; 248 struct si_module *modp; 249 struct speedtab *spt; 250 int nmodule, nport, x, y; 251 int uart_type; 252 253 sc = device_get_softc(dev); 254 unit = device_get_unit(dev); 255 256 sc->sc_typename = si_type[sc->sc_type]; 257 if (si_numunits < unit + 1) 258 si_numunits = unit + 1; 259 260 DPRINT((0, DBG_AUTOBOOT, "si%d: siattach\n", unit)); 261 262#ifdef POLL 263 if (si_pollrate == 0) { 264 si_pollrate = POLLHZ; /* in addition to irq */ 265#ifdef REALPOLL 266 si_realpoll = 1; /* scan always */ 267#endif 268 } 269#endif 270 271 DPRINT((0, DBG_AUTOBOOT, "si%d: type: %s paddr: %x maddr: %x\n", unit, 272 sc->sc_typename, sc->sc_paddr, sc->sc_maddr)); 273 274 sc->sc_ports = NULL; /* mark as uninitialised */ 275 276 maddr = sc->sc_maddr; 277 278 /* Stop the CPU first so it won't stomp around while we load */ 279 280 switch (sc->sc_type) { 281 case SIEISA: 282 outb(sc->sc_iobase + 2, sc->sc_irq << 4); 283 break; 284 case SIPCI: 285 *(maddr+SIPCIRESET) = 0; 286 break; 287 case SIJETPCI: /* fall through to JET ISA */ 288 case SIJETISA: 289 *(maddr+SIJETCONFIG) = 0; 290 break; 291 case SIHOST2: 292 *(maddr+SIPLRESET) = 0; 293 break; 294 case SIHOST: 295 *(maddr+SIRESET) = 0; 296 break; 297 default: /* this should never happen */ 298 printf("si%d: unsupported configuration\n", unit); 299 return EINVAL; 300 break; 301 } 302 303 /* OK, now lets download the download code */ 304 305 if (SI_ISJET(sc->sc_type)) { 306 DPRINT((0, DBG_DOWNLOAD, "si%d: jet_download: nbytes %d\n", 307 unit, si3_t225_dsize)); 308 si_bcopy(si3_t225_download, maddr + si3_t225_downloadaddr, 309 si3_t225_dsize); 310 DPRINT((0, DBG_DOWNLOAD, 311 "si%d: jet_bootstrap: nbytes %d -> %x\n", 312 unit, si3_t225_bsize, si3_t225_bootloadaddr)); 313 si_bcopy(si3_t225_bootstrap, maddr + si3_t225_bootloadaddr, 314 si3_t225_bsize); 315 } else { 316 DPRINT((0, DBG_DOWNLOAD, "si%d: si_download: nbytes %d\n", 317 unit, si2_z280_dsize)); 318 si_bcopy(si2_z280_download, maddr + si2_z280_downloadaddr, 319 si2_z280_dsize); 320 } 321 322 /* Now start the CPU */ 323 324 switch (sc->sc_type) { 325 case SIEISA: 326 /* modify the download code to tell it that it's on an EISA */ 327 *(maddr + 0x42) = 1; 328 outb(sc->sc_iobase + 2, (sc->sc_irq << 4) | 4); 329 (void)inb(sc->sc_iobase + 3); /* reset interrupt */ 330 break; 331 case SIPCI: 332 /* modify the download code to tell it that it's on a PCI */ 333 *(maddr+0x42) = 1; 334 *(maddr+SIPCIRESET) = 1; 335 *(maddr+SIPCIINTCL) = 0; 336 break; 337 case SIJETPCI: 338 *(maddr+SIJETRESET) = 0; 339 *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN; 340 break; 341 case SIJETISA: 342 *(maddr+SIJETRESET) = 0; 343 switch (sc->sc_irq) { 344 case 9: 345 *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0x90; 346 break; 347 case 10: 348 *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xa0; 349 break; 350 case 11: 351 *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xb0; 352 break; 353 case 12: 354 *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xc0; 355 break; 356 case 15: 357 *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xf0; 358 break; 359 } 360 break; 361 case SIHOST: 362 *(maddr+SIRESET_CL) = 0; 363 *(maddr+SIINTCL_CL) = 0; 364 break; 365 case SIHOST2: 366 *(maddr+SIPLRESET) = 0x10; 367 switch (sc->sc_irq) { 368 case 11: 369 *(maddr+SIPLIRQ11) = 0x10; 370 break; 371 case 12: 372 *(maddr+SIPLIRQ12) = 0x10; 373 break; 374 case 15: 375 *(maddr+SIPLIRQ15) = 0x10; 376 break; 377 } 378 *(maddr+SIPLIRQCLR) = 0x10; 379 break; 380 default: /* this should _REALLY_ never happen */ 381 printf("si%d: Uh, it was supported a second ago...\n", unit); 382 return EINVAL; 383 } 384 385 DELAY(1000000); /* wait around for a second */ 386 387 regp = (struct si_reg *)maddr; 388 y = 0; 389 /* wait max of 5 sec for init OK */ 390 while (regp->initstat == 0 && y++ < 10) { 391 DELAY(500000); 392 } 393 switch (regp->initstat) { 394 case 0: 395 printf("si%d: startup timeout - aborting\n", unit); 396 sc->sc_type = SIEMPTY; 397 return EINVAL; 398 case 1: 399 if (SI_ISJET(sc->sc_type)) { 400 /* set throttle to 100 times per second */ 401 regp->int_count = JET_INT_COUNT; 402 /* rx_intr_count is a NOP in Jet */ 403 } else { 404 /* set throttle to 125 times per second */ 405 regp->int_count = INT_COUNT; 406 /* rx intr max of 25 times per second */ 407 regp->rx_int_count = RXINT_COUNT; 408 } 409 regp->int_pending = 0; /* no intr pending */ 410 regp->int_scounter = 0; /* reset counter */ 411 break; 412 case 0xff: 413 /* 414 * No modules found, so give up on this one. 415 */ 416 printf("si%d: %s - no ports found\n", unit, 417 si_type[sc->sc_type]); 418 return 0; 419 default: 420 printf("si%d: download code version error - initstat %x\n", 421 unit, regp->initstat); 422 return EINVAL; 423 } 424 425 /* 426 * First time around the ports just count them in order 427 * to allocate some memory. 428 */ 429 nport = 0; 430 modp = (struct si_module *)(maddr + 0x80); 431 for (;;) { 432 DPRINT((0, DBG_DOWNLOAD, "si%d: ccb addr 0x%x\n", unit, modp)); 433 switch (modp->sm_type) { 434 case TA4: 435 DPRINT((0, DBG_DOWNLOAD, 436 "si%d: Found old TA4 module, 4 ports\n", 437 unit)); 438 x = 4; 439 break; 440 case TA8: 441 DPRINT((0, DBG_DOWNLOAD, 442 "si%d: Found old TA8 module, 8 ports\n", 443 unit)); 444 x = 8; 445 break; 446 case TA4_ASIC: 447 DPRINT((0, DBG_DOWNLOAD, 448 "si%d: Found ASIC TA4 module, 4 ports\n", 449 unit)); 450 x = 4; 451 break; 452 case TA8_ASIC: 453 DPRINT((0, DBG_DOWNLOAD, 454 "si%d: Found ASIC TA8 module, 8 ports\n", 455 unit)); 456 x = 8; 457 break; 458 case MTA: 459 DPRINT((0, DBG_DOWNLOAD, 460 "si%d: Found CD1400 module, 8 ports\n", 461 unit)); 462 x = 8; 463 break; 464 case SXDC: 465 DPRINT((0, DBG_DOWNLOAD, 466 "si%d: Found SXDC module, 8 ports\n", 467 unit)); 468 x = 8; 469 break; 470 default: 471 printf("si%d: unknown module type %d\n", 472 unit, modp->sm_type); 473 goto try_next; 474 } 475 476 /* this was limited in firmware and is also a driver issue */ 477 if ((nport + x) > SI_MAXPORTPERCARD) { 478 printf("si%d: extra ports ignored\n", unit); 479 goto try_next; 480 } 481 482 nport += x; 483 si_Nports += x; 484 si_Nmodules++; 485 486try_next: 487 if (modp->sm_next == 0) 488 break; 489 modp = (struct si_module *) 490 (maddr + (unsigned)(modp->sm_next & 0x7fff)); 491 } 492 sc->sc_ports = (struct si_port *)malloc(sizeof(struct si_port) * nport, 493 M_DEVBUF, M_NOWAIT | M_ZERO); 494 if (sc->sc_ports == 0) { 495 printf("si%d: fail to malloc memory for port structs\n", 496 unit); 497 return EINVAL; 498 } 499 sc->sc_nport = nport; 500 501 /* 502 * Scan round the ports again, this time initialising. 503 */ 504 pp = sc->sc_ports; 505 nmodule = 0; 506 modp = (struct si_module *)(maddr + 0x80); 507 uart_type = 1000; /* arbitary, > uchar_max */ 508 for (;;) { 509 switch (modp->sm_type) { 510 case TA4: 511 nport = 4; 512 break; 513 case TA8: 514 nport = 8; 515 break; 516 case TA4_ASIC: 517 nport = 4; 518 break; 519 case TA8_ASIC: 520 nport = 8; 521 break; 522 case MTA: 523 nport = 8; 524 break; 525 case SXDC: 526 nport = 8; 527 break; 528 default: 529 goto try_next2; 530 } 531 nmodule++; 532 ccbp = (struct si_channel *)((char *)modp + 0x100); 533 if (uart_type == 1000) 534 uart_type = ccbp->type; 535 else if (uart_type != ccbp->type) 536 printf("si%d: Warning: module %d mismatch! (%d%s != %d%s)\n", 537 unit, nmodule, 538 ccbp->type, si_modulename(sc->sc_type, ccbp->type), 539 uart_type, si_modulename(sc->sc_type, uart_type)); 540 541 for (x = 0; x < nport; x++, pp++, ccbp++) { 542 pp->sp_ccb = ccbp; /* save the address */ 543 pp->sp_tty = ttymalloc(NULL); 544 pp->sp_pend = IDLE_CLOSE; 545 pp->sp_state = 0; /* internal flag */ 546 pp->sp_dtr_wait = 3 * hz; 547 pp->sp_iin.c_iflag = TTYDEF_IFLAG; 548 pp->sp_iin.c_oflag = TTYDEF_OFLAG; 549 pp->sp_iin.c_cflag = TTYDEF_CFLAG; 550 pp->sp_iin.c_lflag = TTYDEF_LFLAG; 551 termioschars(&pp->sp_iin); 552 pp->sp_iin.c_ispeed = pp->sp_iin.c_ospeed = 553 TTYDEF_SPEED;; 554 pp->sp_iout = pp->sp_iin; 555 } 556try_next2: 557 if (modp->sm_next == 0) { 558 printf("si%d: card: %s, ports: %d, modules: %d, type: %d%s\n", 559 unit, 560 sc->sc_typename, 561 sc->sc_nport, 562 nmodule, 563 uart_type, 564 si_modulename(sc->sc_type, uart_type)); 565 break; 566 } 567 modp = (struct si_module *) 568 (maddr + (unsigned)(modp->sm_next & 0x7fff)); 569 } 570 if (done_chartimes == 0) { 571 for (spt = chartimes ; spt->sp_speed != -1; spt++) { 572 if ((spt->sp_code /= hz) == 0) 573 spt->sp_code = 1; 574 } 575 done_chartimes = 1; 576 } 577 578/* path name devsw minor type uid gid perm*/ 579 for (x = 0; x < sc->sc_nport; x++) { 580 /* sync with the manuals that start at 1 */ 581 y = x + 1 + unit * (1 << SI_CARDSHIFT); 582 make_dev(&si_cdevsw, x, 0, 0, 0600, "ttyA%02d", y); 583 make_dev(&si_cdevsw, x + 0x00080, 0, 0, 0600, "cuaA%02d", y); 584 make_dev(&si_cdevsw, x + 0x10000, 0, 0, 0600, "ttyiA%02d", y); 585 make_dev(&si_cdevsw, x + 0x10080, 0, 0, 0600, "cuaiA%02d", y); 586 make_dev(&si_cdevsw, x + 0x20000, 0, 0, 0600, "ttylA%02d", y); 587 make_dev(&si_cdevsw, x + 0x20080, 0, 0, 0600, "cualA%02d", y); 588 } 589 make_dev(&si_cdevsw, 0x40000, 0, 0, 0600, "si_control"); 590 return (0); 591} 592 593static int 594siopen(dev_t dev, int flag, int mode, struct thread *td) 595{ 596 int oldspl, error; 597 int card, port; 598 struct si_softc *sc; 599 struct tty *tp; 600 volatile struct si_channel *ccbp; 601 struct si_port *pp; 602 int mynor = minor(dev); 603 604 /* quickly let in /dev/si_control */ 605 if (IS_CONTROLDEV(mynor)) { 606 if ((error = suser(td))) 607 return(error); 608 return(0); 609 } 610 611 card = SI_CARD(mynor); 612 sc = devclass_get_softc(si_devclass, card); 613 if (sc == NULL) 614 return (ENXIO); 615 616 if (sc->sc_type == SIEMPTY) { 617 DPRINT((0, DBG_OPEN|DBG_FAIL, "si%d: type %s??\n", 618 card, sc->sc_typename)); 619 return(ENXIO); 620 } 621 622 port = SI_PORT(mynor); 623 if (port >= sc->sc_nport) { 624 DPRINT((0, DBG_OPEN|DBG_FAIL, "si%d: nports %d\n", 625 card, sc->sc_nport)); 626 return(ENXIO); 627 } 628 629#ifdef POLL 630 /* 631 * We've now got a device, so start the poller. 632 */ 633 if (init_finished == 0) { 634 timeout(si_poll, (caddr_t)0L, si_pollrate); 635 init_finished = 1; 636 } 637#endif 638 639 /* initial/lock device */ 640 if (IS_STATE(mynor)) { 641 return(0); 642 } 643 644 pp = sc->sc_ports + port; 645 tp = pp->sp_tty; /* the "real" tty */ 646 dev->si_tty = tp; 647 ccbp = pp->sp_ccb; /* Find control block */ 648 DPRINT((pp, DBG_ENTRY|DBG_OPEN, "siopen(%s,%x,%x,%x)\n", 649 devtoname(dev), flag, mode, td)); 650 651 oldspl = spltty(); /* Keep others out */ 652 error = 0; 653 654open_top: 655 while (pp->sp_state & SS_DTR_OFF) { 656 error = tsleep(&pp->sp_dtr_wait, TTIPRI|PCATCH, "sidtr", 0); 657 if (error != 0) 658 goto out; 659 } 660 661 if (tp->t_state & TS_ISOPEN) { 662 /* 663 * The device is open, so everything has been initialised. 664 * handle conflicts. 665 */ 666 if (IS_CALLOUT(mynor)) { 667 if (!pp->sp_active_out) { 668 error = EBUSY; 669 goto out; 670 } 671 } else { 672 if (pp->sp_active_out) { 673 if (flag & O_NONBLOCK) { 674 error = EBUSY; 675 goto out; 676 } 677 error = tsleep(&pp->sp_active_out, 678 TTIPRI|PCATCH, "sibi", 0); 679 if (error != 0) 680 goto out; 681 goto open_top; 682 } 683 } 684 if (tp->t_state & TS_XCLUDE && 685 suser(td)) { 686 DPRINT((pp, DBG_OPEN|DBG_FAIL, 687 "already open and EXCLUSIVE set\n")); 688 error = EBUSY; 689 goto out; 690 } 691 } else { 692 /* 693 * The device isn't open, so there are no conflicts. 694 * Initialize it. Avoid sleep... :-) 695 */ 696 DPRINT((pp, DBG_OPEN, "first open\n")); 697 tp->t_oproc = si_start; 698 tp->t_stop = si_stop; 699 tp->t_param = siparam; 700 tp->t_dev = dev; 701 tp->t_termios = mynor & SI_CALLOUT_MASK 702 ? pp->sp_iout : pp->sp_iin; 703 704 (void) si_modem(pp, SET, TIOCM_DTR|TIOCM_RTS); 705 706 ++pp->sp_wopeners; /* in case of sleep in siparam */ 707 708 error = siparam(tp, &tp->t_termios); 709 710 --pp->sp_wopeners; 711 if (error != 0) 712 goto out; 713 /* XXX: we should goto_top if siparam slept */ 714 715 /* set initial DCD state */ 716 pp->sp_last_hi_ip = ccbp->hi_ip; 717 if ((pp->sp_last_hi_ip & IP_DCD) || IS_CALLOUT(mynor)) { 718 (*linesw[tp->t_line].l_modem)(tp, 1); 719 } 720 } 721 722 /* whoops! we beat the close! */ 723 if (pp->sp_state & SS_CLOSING) { 724 /* try and stop it from proceeding to bash the hardware */ 725 pp->sp_state &= ~SS_CLOSING; 726 } 727 728 /* 729 * Wait for DCD if necessary 730 */ 731 if (!(tp->t_state & TS_CARR_ON) && 732 !IS_CALLOUT(mynor) && 733 !(tp->t_cflag & CLOCAL) && 734 !(flag & O_NONBLOCK)) { 735 ++pp->sp_wopeners; 736 DPRINT((pp, DBG_OPEN, "sleeping for carrier\n")); 737 error = tsleep(TSA_CARR_ON(tp), TTIPRI|PCATCH, "sidcd", 0); 738 --pp->sp_wopeners; 739 if (error != 0) 740 goto out; 741 goto open_top; 742 } 743 744 error = (*linesw[tp->t_line].l_open)(dev, tp); 745 si_disc_optim(tp, &tp->t_termios, pp); 746 if (tp->t_state & TS_ISOPEN && IS_CALLOUT(mynor)) 747 pp->sp_active_out = TRUE; 748 749 pp->sp_state |= SS_OPEN; /* made it! */ 750 751out: 752 splx(oldspl); 753 754 DPRINT((pp, DBG_OPEN, "leaving siopen\n")); 755 756 if (!(tp->t_state & TS_ISOPEN) && pp->sp_wopeners == 0) 757 sihardclose(pp); 758 759 return(error); 760} 761 762static int 763siclose(dev_t dev, int flag, int mode, struct thread *td) 764{ 765 struct si_port *pp; 766 struct tty *tp; 767 int oldspl; 768 int error = 0; 769 int mynor = minor(dev); 770 771 if (IS_SPECIAL(mynor)) 772 return(0); 773 774 oldspl = spltty(); 775 776 pp = MINOR2PP(mynor); 777 tp = pp->sp_tty; 778 779 DPRINT((pp, DBG_ENTRY|DBG_CLOSE, "siclose(%s,%x,%x,%x) sp_state:%x\n", 780 devtoname(dev), flag, mode, td, pp->sp_state)); 781 782 /* did we sleep and loose a race? */ 783 if (pp->sp_state & SS_CLOSING) { 784 /* error = ESOMETING? */ 785 goto out; 786 } 787 788 /* begin race detection.. */ 789 pp->sp_state |= SS_CLOSING; 790 791 si_write_enable(pp, 0); /* block writes for ttywait() */ 792 793 /* THIS MAY SLEEP IN TTYWAIT!!! */ 794 (*linesw[tp->t_line].l_close)(tp, flag); 795 796 si_write_enable(pp, 1); 797 798 /* did we sleep and somebody started another open? */ 799 if (!(pp->sp_state & SS_CLOSING)) { 800 /* error = ESOMETING? */ 801 goto out; 802 } 803 /* ok. we are now still on the right track.. nuke the hardware */ 804 805 if (pp->sp_state & SS_LSTART) { 806 untimeout(si_lstart, (caddr_t)pp, pp->lstart_ch); 807 pp->sp_state &= ~SS_LSTART; 808 } 809 810 si_stop(tp, FREAD | FWRITE); 811 812 sihardclose(pp); 813 ttyclose(tp); 814 pp->sp_state &= ~SS_OPEN; 815 816out: 817 DPRINT((pp, DBG_CLOSE|DBG_EXIT, "close done, returning\n")); 818 splx(oldspl); 819 return(error); 820} 821 822static void 823sihardclose(struct si_port *pp) 824{ 825 int oldspl; 826 struct tty *tp; 827 volatile struct si_channel *ccbp; 828 829 oldspl = spltty(); 830 831 tp = pp->sp_tty; 832 ccbp = pp->sp_ccb; /* Find control block */ 833 if (tp->t_cflag & HUPCL || 834 (!pp->sp_active_out && 835 !(ccbp->hi_ip & IP_DCD) && 836 !(pp->sp_iin.c_cflag && CLOCAL)) || 837 !(tp->t_state & TS_ISOPEN)) { 838 839 (void) si_modem(pp, BIC, TIOCM_DTR|TIOCM_RTS); 840 (void) si_command(pp, FCLOSE, SI_NOWAIT); 841 842 if (pp->sp_dtr_wait != 0) { 843 timeout(sidtrwakeup, pp, pp->sp_dtr_wait); 844 pp->sp_state |= SS_DTR_OFF; 845 } 846 847 } 848 pp->sp_active_out = FALSE; 849 wakeup(&pp->sp_active_out); 850 wakeup(TSA_CARR_ON(tp)); 851 852 splx(oldspl); 853} 854 855 856/* 857 * called at splsoftclock()... 858 */ 859static void 860sidtrwakeup(void *chan) 861{ 862 struct si_port *pp; 863 int oldspl; 864 865 oldspl = spltty(); 866 867 pp = (struct si_port *)chan; 868 pp->sp_state &= ~SS_DTR_OFF; 869 wakeup(&pp->sp_dtr_wait); 870 871 splx(oldspl); 872} 873 874static int 875siwrite(dev_t dev, struct uio *uio, int flag) 876{ 877 struct si_port *pp; 878 struct tty *tp; 879 int error = 0; 880 int mynor = minor(dev); 881 int oldspl; 882 883 if (IS_SPECIAL(mynor)) { 884 DPRINT((0, DBG_ENTRY|DBG_FAIL|DBG_WRITE, "siwrite(CONTROLDEV!!)\n")); 885 return(ENODEV); 886 } 887 pp = MINOR2PP(mynor); 888 tp = pp->sp_tty; 889 DPRINT((pp, DBG_WRITE, "siwrite(%s,%x,%x)\n", devtoname(dev), uio, flag)); 890 891 oldspl = spltty(); 892 /* 893 * If writes are currently blocked, wait on the "real" tty 894 */ 895 while (pp->sp_state & SS_BLOCKWRITE) { 896 pp->sp_state |= SS_WAITWRITE; 897 DPRINT((pp, DBG_WRITE, "in siwrite, wait for SS_BLOCKWRITE to clear\n")); 898 if ((error = ttysleep(tp, (caddr_t)pp, TTOPRI|PCATCH, 899 "siwrite", tp->t_timeout))) { 900 if (error == EWOULDBLOCK) 901 error = EIO; 902 goto out; 903 } 904 } 905 906 error = (*linesw[tp->t_line].l_write)(tp, uio, flag); 907out: 908 splx(oldspl); 909 return (error); 910} 911 912 913static int 914siioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct thread *td) 915{ 916 struct si_port *pp; 917 struct tty *tp; 918 int error; 919 int mynor = minor(dev); 920 int oldspl; 921 int blocked = 0; 922#if defined(COMPAT_43) 923 u_long oldcmd; 924 struct termios term; 925#endif 926 927 if (IS_SI_IOCTL(cmd)) 928 return(si_Sioctl(dev, cmd, data, flag, td)); 929 930 pp = MINOR2PP(mynor); 931 tp = pp->sp_tty; 932 933 DPRINT((pp, DBG_ENTRY|DBG_IOCTL, "siioctl(%s,%lx,%x,%x)\n", 934 devtoname(dev), cmd, data, flag)); 935 if (IS_STATE(mynor)) { 936 struct termios *ct; 937 938 switch (mynor & SI_STATE_MASK) { 939 case SI_INIT_STATE_MASK: 940 ct = IS_CALLOUT(mynor) ? &pp->sp_iout : &pp->sp_iin; 941 break; 942 case SI_LOCK_STATE_MASK: 943 ct = IS_CALLOUT(mynor) ? &pp->sp_lout : &pp->sp_lin; 944 break; 945 default: 946 return (ENODEV); 947 } 948 switch (cmd) { 949 case TIOCSETA: 950 error = suser(td); 951 if (error != 0) 952 return (error); 953 *ct = *(struct termios *)data; 954 return (0); 955 case TIOCGETA: 956 *(struct termios *)data = *ct; 957 return (0); 958 case TIOCGETD: 959 *(int *)data = TTYDISC; 960 return (0); 961 case TIOCGWINSZ: 962 bzero(data, sizeof(struct winsize)); 963 return (0); 964 default: 965 return (ENOTTY); 966 } 967 } 968 /* 969 * Do the old-style ioctl compat routines... 970 */ 971#if defined(COMPAT_43) 972 term = tp->t_termios; 973 oldcmd = cmd; 974 error = ttsetcompat(tp, &cmd, data, &term); 975 if (error != 0) 976 return (error); 977 if (cmd != oldcmd) 978 data = (caddr_t)&term; 979#endif 980 /* 981 * Do the initial / lock state business 982 */ 983 if (cmd == TIOCSETA || cmd == TIOCSETAW || cmd == TIOCSETAF) { 984 int cc; 985 struct termios *dt = (struct termios *)data; 986 struct termios *lt = mynor & SI_CALLOUT_MASK 987 ? &pp->sp_lout : &pp->sp_lin; 988 989 dt->c_iflag = (tp->t_iflag & lt->c_iflag) | 990 (dt->c_iflag & ~lt->c_iflag); 991 dt->c_oflag = (tp->t_oflag & lt->c_oflag) | 992 (dt->c_oflag & ~lt->c_oflag); 993 dt->c_cflag = (tp->t_cflag & lt->c_cflag) | 994 (dt->c_cflag & ~lt->c_cflag); 995 dt->c_lflag = (tp->t_lflag & lt->c_lflag) | 996 (dt->c_lflag & ~lt->c_lflag); 997 for (cc = 0; cc < NCCS; ++cc) 998 if (lt->c_cc[cc] != 0) 999 dt->c_cc[cc] = tp->t_cc[cc]; 1000 if (lt->c_ispeed != 0) 1001 dt->c_ispeed = tp->t_ispeed; 1002 if (lt->c_ospeed != 0) 1003 dt->c_ospeed = tp->t_ospeed; 1004 } 1005 1006 /* 1007 * Block user-level writes to give the ttywait() 1008 * a chance to completely drain for commands 1009 * that require the port to be in a quiescent state. 1010 */ 1011 switch (cmd) { 1012 case TIOCSETAW: 1013 case TIOCSETAF: 1014 case TIOCDRAIN: 1015#ifdef COMPAT_43 1016 case TIOCSETP: 1017#endif 1018 blocked++; /* block writes for ttywait() and siparam() */ 1019 si_write_enable(pp, 0); 1020 } 1021 1022 error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, td); 1023 if (error != ENOIOCTL) 1024 goto out; 1025 1026 oldspl = spltty(); 1027 1028 error = ttioctl(tp, cmd, data, flag); 1029 si_disc_optim(tp, &tp->t_termios, pp); 1030 if (error != ENOIOCTL) { 1031 splx(oldspl); 1032 goto out; 1033 } 1034 1035 error = 0; 1036 switch (cmd) { 1037 case TIOCSBRK: 1038 si_command(pp, SBREAK, SI_WAIT); 1039 break; 1040 case TIOCCBRK: 1041 si_command(pp, EBREAK, SI_WAIT); 1042 break; 1043 case TIOCSDTR: 1044 (void) si_modem(pp, SET, TIOCM_DTR|TIOCM_RTS); 1045 break; 1046 case TIOCCDTR: 1047 (void) si_modem(pp, SET, 0); 1048 break; 1049 case TIOCMSET: 1050 (void) si_modem(pp, SET, *(int *)data); 1051 break; 1052 case TIOCMBIS: 1053 (void) si_modem(pp, BIS, *(int *)data); 1054 break; 1055 case TIOCMBIC: 1056 (void) si_modem(pp, BIC, *(int *)data); 1057 break; 1058 case TIOCMGET: 1059 *(int *)data = si_modem(pp, GET, 0); 1060 break; 1061 case TIOCMSDTRWAIT: 1062 /* must be root since the wait applies to following logins */ 1063 error = suser(td); 1064 if (error == 0) 1065 pp->sp_dtr_wait = *(int *)data * hz / 100; 1066 break; 1067 case TIOCMGDTRWAIT: 1068 *(int *)data = pp->sp_dtr_wait * 100 / hz; 1069 break; 1070 default: 1071 error = ENOTTY; 1072 } 1073 splx(oldspl); 1074 1075out: 1076 DPRINT((pp, DBG_IOCTL|DBG_EXIT, "siioctl ret %d\n", error)); 1077 if (blocked) 1078 si_write_enable(pp, 1); 1079 return(error); 1080} 1081 1082/* 1083 * Handle the Specialix ioctls. All MUST be called via the CONTROL device 1084 */ 1085static int 1086si_Sioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct thread *td) 1087{ 1088 struct si_softc *xsc; 1089 struct si_port *xpp; 1090 volatile struct si_reg *regp; 1091 struct si_tcsi *dp; 1092 struct si_pstat *sps; 1093 int *ip, error = 0; 1094 int oldspl; 1095 int card, port; 1096 int mynor = minor(dev); 1097 1098 DPRINT((0, DBG_ENTRY|DBG_IOCTL, "si_Sioctl(%s,%lx,%x,%x)\n", 1099 devtoname(dev), cmd, data, flag)); 1100 1101#if 1 1102 DPRINT((0, DBG_IOCTL, "TCSI_PORT=%x\n", TCSI_PORT)); 1103 DPRINT((0, DBG_IOCTL, "TCSI_CCB=%x\n", TCSI_CCB)); 1104 DPRINT((0, DBG_IOCTL, "TCSI_TTY=%x\n", TCSI_TTY)); 1105#endif 1106 1107 if (!IS_CONTROLDEV(mynor)) { 1108 DPRINT((0, DBG_IOCTL|DBG_FAIL, "not called from control device!\n")); 1109 return(ENODEV); 1110 } 1111 1112 oldspl = spltty(); /* better safe than sorry */ 1113 1114 ip = (int *)data; 1115 1116#define SUCHECK if ((error = suser(td))) goto out 1117 1118 switch (cmd) { 1119 case TCSIPORTS: 1120 *ip = si_Nports; 1121 goto out; 1122 case TCSIMODULES: 1123 *ip = si_Nmodules; 1124 goto out; 1125 case TCSISDBG_ALL: 1126 SUCHECK; 1127 si_debug = *ip; 1128 goto out; 1129 case TCSIGDBG_ALL: 1130 *ip = si_debug; 1131 goto out; 1132 default: 1133 /* 1134 * Check that a controller for this port exists 1135 */ 1136 1137 /* may also be a struct si_pstat, a superset of si_tcsi */ 1138 1139 dp = (struct si_tcsi *)data; 1140 sps = (struct si_pstat *)data; 1141 card = dp->tc_card; 1142 xsc = devclass_get_softc(si_devclass, card); /* check.. */ 1143 if (xsc == NULL || xsc->sc_type == SIEMPTY) { 1144 error = ENOENT; 1145 goto out; 1146 } 1147 /* 1148 * And check that a port exists 1149 */ 1150 port = dp->tc_port; 1151 if (port < 0 || port >= xsc->sc_nport) { 1152 error = ENOENT; 1153 goto out; 1154 } 1155 xpp = xsc->sc_ports + port; 1156 regp = (struct si_reg *)xsc->sc_maddr; 1157 } 1158 1159 switch (cmd) { 1160 case TCSIDEBUG: 1161#ifdef SI_DEBUG 1162 SUCHECK; 1163 if (xpp->sp_debug) 1164 xpp->sp_debug = 0; 1165 else { 1166 xpp->sp_debug = DBG_ALL; 1167 DPRINT((xpp, DBG_IOCTL, "debug toggled %s\n", 1168 (xpp->sp_debug&DBG_ALL)?"ON":"OFF")); 1169 } 1170 break; 1171#else 1172 error = ENODEV; 1173 goto out; 1174#endif 1175 case TCSISDBG_LEVEL: 1176 case TCSIGDBG_LEVEL: 1177#ifdef SI_DEBUG 1178 if (cmd == TCSIGDBG_LEVEL) { 1179 dp->tc_dbglvl = xpp->sp_debug; 1180 } else { 1181 SUCHECK; 1182 xpp->sp_debug = dp->tc_dbglvl; 1183 } 1184 break; 1185#else 1186 error = ENODEV; 1187 goto out; 1188#endif 1189 case TCSIGRXIT: 1190 dp->tc_int = regp->rx_int_count; 1191 break; 1192 case TCSIRXIT: 1193 SUCHECK; 1194 regp->rx_int_count = dp->tc_int; 1195 break; 1196 case TCSIGIT: 1197 dp->tc_int = regp->int_count; 1198 break; 1199 case TCSIIT: 1200 SUCHECK; 1201 regp->int_count = dp->tc_int; 1202 break; 1203 case TCSISTATE: 1204 dp->tc_int = xpp->sp_ccb->hi_ip; 1205 break; 1206 /* these next three use a different structure */ 1207 case TCSI_PORT: 1208 SUCHECK; 1209 si_bcopy(xpp, &sps->tc_siport, sizeof(sps->tc_siport)); 1210 break; 1211 case TCSI_CCB: 1212 SUCHECK; 1213 si_vbcopy(xpp->sp_ccb, &sps->tc_ccb, sizeof(sps->tc_ccb)); 1214 break; 1215 case TCSI_TTY: 1216 SUCHECK; 1217 si_bcopy(xpp->sp_tty, &sps->tc_tty, sizeof(sps->tc_tty)); 1218 break; 1219 default: 1220 error = EINVAL; 1221 goto out; 1222 } 1223out: 1224 splx(oldspl); 1225 return(error); /* success */ 1226} 1227 1228/* 1229 * siparam() : Configure line params 1230 * called at spltty(); 1231 * this may sleep, does not flush, nor wait for drain, nor block writes 1232 * caller must arrange this if it's important.. 1233 */ 1234static int 1235siparam(struct tty *tp, struct termios *t) 1236{ 1237 struct si_port *pp = TP2PP(tp); 1238 volatile struct si_channel *ccbp; 1239 int oldspl, cflag, iflag, oflag, lflag; 1240 int error = 0; /* shutup gcc */ 1241 int ispeed = 0; /* shutup gcc */ 1242 int ospeed = 0; /* shutup gcc */ 1243 BYTE val; 1244 1245 DPRINT((pp, DBG_ENTRY|DBG_PARAM, "siparam(%x,%x)\n", tp, t)); 1246 cflag = t->c_cflag; 1247 iflag = t->c_iflag; 1248 oflag = t->c_oflag; 1249 lflag = t->c_lflag; 1250 DPRINT((pp, DBG_PARAM, "OFLAG 0x%x CFLAG 0x%x IFLAG 0x%x LFLAG 0x%x\n", 1251 oflag, cflag, iflag, lflag)); 1252 1253 /* XXX - if Jet host and SXDC module, use extended baud rates */ 1254 1255 /* if not hung up.. */ 1256 if (t->c_ospeed != 0) { 1257 /* translate baud rate to firmware values */ 1258 ospeed = ttspeedtab(t->c_ospeed, bdrates); 1259 ispeed = t->c_ispeed ? 1260 ttspeedtab(t->c_ispeed, bdrates) : ospeed; 1261 1262 /* enforce legit baud rate */ 1263 if (ospeed < 0 || ispeed < 0) 1264 return (EINVAL); 1265 } 1266 1267 oldspl = spltty(); 1268 1269 ccbp = pp->sp_ccb; 1270 1271 /* ========== set hi_break ========== */ 1272 val = 0; 1273 if (iflag & IGNBRK) /* Breaks */ 1274 val |= BR_IGN; 1275 if (iflag & BRKINT) /* Interrupt on break? */ 1276 val |= BR_INT; 1277 if (iflag & PARMRK) /* Parity mark? */ 1278 val |= BR_PARMRK; 1279 if (iflag & IGNPAR) /* Ignore chars with parity errors? */ 1280 val |= BR_PARIGN; 1281 ccbp->hi_break = val; 1282 1283 /* ========== set hi_csr ========== */ 1284 /* if not hung up.. */ 1285 if (t->c_ospeed != 0) { 1286 /* Set I/O speeds */ 1287 val = (ispeed << 4) | ospeed; 1288 } 1289 ccbp->hi_csr = val; 1290 1291 /* ========== set hi_mr2 ========== */ 1292 val = 0; 1293 if (cflag & CSTOPB) /* Stop bits */ 1294 val |= MR2_2_STOP; 1295 else 1296 val |= MR2_1_STOP; 1297 /* 1298 * Enable H/W RTS/CTS handshaking. The default TA/MTA is 1299 * a DCE, hence the reverse sense of RTS and CTS 1300 */ 1301 /* Output Flow - RTS must be raised before data can be sent */ 1302 if (cflag & CCTS_OFLOW) 1303 val |= MR2_RTSCONT; 1304 1305 ccbp->hi_mr2 = val; 1306 1307 /* ========== set hi_mr1 ========== */ 1308 val = 0; 1309 if (!(cflag & PARENB)) /* Parity */ 1310 val |= MR1_NONE; 1311 else 1312 val |= MR1_WITH; 1313 if (cflag & PARODD) 1314 val |= MR1_ODD; 1315 1316 if ((cflag & CS8) == CS8) { /* 8 data bits? */ 1317 val |= MR1_8_BITS; 1318 } else if ((cflag & CS7) == CS7) { /* 7 data bits? */ 1319 val |= MR1_7_BITS; 1320 } else if ((cflag & CS6) == CS6) { /* 6 data bits? */ 1321 val |= MR1_6_BITS; 1322 } else { /* Must be 5 */ 1323 val |= MR1_5_BITS; 1324 } 1325 /* 1326 * Enable H/W RTS/CTS handshaking. The default TA/MTA is 1327 * a DCE, hence the reverse sense of RTS and CTS 1328 */ 1329 /* Input Flow - CTS is raised when port is ready to receive data */ 1330 if (cflag & CRTS_IFLOW) 1331 val |= MR1_CTSCONT; 1332 1333 ccbp->hi_mr1 = val; 1334 1335 /* ========== set hi_mask ========== */ 1336 val = 0xff; 1337 if ((cflag & CS8) == CS8) { /* 8 data bits? */ 1338 val &= 0xFF; 1339 } else if ((cflag & CS7) == CS7) { /* 7 data bits? */ 1340 val &= 0x7F; 1341 } else if ((cflag & CS6) == CS6) { /* 6 data bits? */ 1342 val &= 0x3F; 1343 } else { /* Must be 5 */ 1344 val &= 0x1F; 1345 } 1346 if (iflag & ISTRIP) 1347 val &= 0x7F; 1348 1349 ccbp->hi_mask = val; 1350 1351 /* ========== set hi_prtcl ========== */ 1352 val = SP_DCEN; /* Monitor DCD always, or TIOCMGET misses it */ 1353 if (iflag & IXANY) 1354 val |= SP_TANY; 1355 if (iflag & IXON) 1356 val |= SP_TXEN; 1357 if (iflag & IXOFF) 1358 val |= SP_RXEN; 1359 if (iflag & INPCK) 1360 val |= SP_PAEN; 1361 1362 ccbp->hi_prtcl = val; 1363 1364 1365 /* ========== set hi_{rx|tx}{on|off} ========== */ 1366 /* XXX: the card TOTALLY shields us from the flow control... */ 1367 ccbp->hi_txon = t->c_cc[VSTART]; 1368 ccbp->hi_txoff = t->c_cc[VSTOP]; 1369 1370 ccbp->hi_rxon = t->c_cc[VSTART]; 1371 ccbp->hi_rxoff = t->c_cc[VSTOP]; 1372 1373 /* ========== send settings to the card ========== */ 1374 /* potential sleep here */ 1375 if (ccbp->hi_stat == IDLE_CLOSE) /* Not yet open */ 1376 si_command(pp, LOPEN, SI_WAIT); /* open it */ 1377 else 1378 si_command(pp, CONFIG, SI_WAIT); /* change params */ 1379 1380 /* ========== set DTR etc ========== */ 1381 /* Hangup if ospeed == 0 */ 1382 if (t->c_ospeed == 0) { 1383 (void) si_modem(pp, BIC, TIOCM_DTR|TIOCM_RTS); 1384 } else { 1385 /* 1386 * If the previous speed was 0, may need to re-enable 1387 * the modem signals 1388 */ 1389 (void) si_modem(pp, SET, TIOCM_DTR|TIOCM_RTS); 1390 } 1391 1392 DPRINT((pp, DBG_PARAM, "siparam, complete: MR1 %x MR2 %x HI_MASK %x PRTCL %x HI_BREAK %x\n", 1393 ccbp->hi_mr1, ccbp->hi_mr2, ccbp->hi_mask, ccbp->hi_prtcl, ccbp->hi_break)); 1394 1395 splx(oldspl); 1396 return(error); 1397} 1398 1399/* 1400 * Enable or Disable the writes to this channel... 1401 * "state" -> enabled = 1; disabled = 0; 1402 */ 1403static void 1404si_write_enable(struct si_port *pp, int state) 1405{ 1406 int oldspl; 1407 1408 oldspl = spltty(); 1409 1410 if (state) { 1411 pp->sp_state &= ~SS_BLOCKWRITE; 1412 if (pp->sp_state & SS_WAITWRITE) { 1413 pp->sp_state &= ~SS_WAITWRITE; 1414 /* thunder away! */ 1415 wakeup(pp); 1416 } 1417 } else { 1418 pp->sp_state |= SS_BLOCKWRITE; 1419 } 1420 1421 splx(oldspl); 1422} 1423 1424/* 1425 * Set/Get state of modem control lines. 1426 * Due to DCE-like behaviour of the adapter, some signals need translation: 1427 * TIOCM_DTR DSR 1428 * TIOCM_RTS CTS 1429 */ 1430static int 1431si_modem(struct si_port *pp, enum si_mctl cmd, int bits) 1432{ 1433 volatile struct si_channel *ccbp; 1434 int x; 1435 1436 DPRINT((pp, DBG_ENTRY|DBG_MODEM, "si_modem(%x,%s,%x)\n", pp, si_mctl2str(cmd), bits)); 1437 ccbp = pp->sp_ccb; /* Find channel address */ 1438 switch (cmd) { 1439 case GET: 1440 x = ccbp->hi_ip; 1441 bits = TIOCM_LE; 1442 if (x & IP_DCD) bits |= TIOCM_CAR; 1443 if (x & IP_DTR) bits |= TIOCM_DTR; 1444 if (x & IP_RTS) bits |= TIOCM_RTS; 1445 if (x & IP_RI) bits |= TIOCM_RI; 1446 return(bits); 1447 case SET: 1448 ccbp->hi_op &= ~(OP_DSR|OP_CTS); 1449 /* fall through */ 1450 case BIS: 1451 x = 0; 1452 if (bits & TIOCM_DTR) 1453 x |= OP_DSR; 1454 if (bits & TIOCM_RTS) 1455 x |= OP_CTS; 1456 ccbp->hi_op |= x; 1457 break; 1458 case BIC: 1459 if (bits & TIOCM_DTR) 1460 ccbp->hi_op &= ~OP_DSR; 1461 if (bits & TIOCM_RTS) 1462 ccbp->hi_op &= ~OP_CTS; 1463 } 1464 return 0; 1465} 1466 1467/* 1468 * Handle change of modem state 1469 */ 1470static void 1471si_modem_state(struct si_port *pp, struct tty *tp, int hi_ip) 1472{ 1473 /* if a modem dev */ 1474 if (hi_ip & IP_DCD) { 1475 if (!(pp->sp_last_hi_ip & IP_DCD)) { 1476 DPRINT((pp, DBG_INTR, "modem carr on t_line %d\n", 1477 tp->t_line)); 1478 (void)(*linesw[tp->t_line].l_modem)(tp, 1); 1479 } 1480 } else { 1481 if (pp->sp_last_hi_ip & IP_DCD) { 1482 DPRINT((pp, DBG_INTR, "modem carr off\n")); 1483 if ((*linesw[tp->t_line].l_modem)(tp, 0)) 1484 (void) si_modem(pp, SET, 0); 1485 } 1486 } 1487 pp->sp_last_hi_ip = hi_ip; 1488 1489} 1490 1491/* 1492 * Poller to catch missed interrupts. 1493 * 1494 * Note that the SYSV Specialix drivers poll at 100 times per second to get 1495 * better response. We could really use a "periodic" version timeout(). :-) 1496 */ 1497#ifdef POLL 1498static void 1499si_poll(void *nothing) 1500{ 1501 struct si_softc *sc; 1502 int i; 1503 volatile struct si_reg *regp; 1504 struct si_port *pp; 1505 int lost, oldspl, port; 1506 1507 DPRINT((0, DBG_POLL, "si_poll()\n")); 1508 oldspl = spltty(); 1509 if (in_intr) 1510 goto out; 1511 lost = 0; 1512 for (i = 0; i < si_numunits; i++) { 1513 sc = devclass_get_softc(si_devclass, i); 1514 if (sc == NULL || sc->sc_type == SIEMPTY) 1515 continue; 1516 regp = (struct si_reg *)sc->sc_maddr; 1517 1518 /* 1519 * See if there has been a pending interrupt for 2 seconds 1520 * or so. The test (int_scounter >= 200) won't correspond 1521 * to 2 seconds if int_count gets changed. 1522 */ 1523 if (regp->int_pending != 0) { 1524 if (regp->int_scounter >= 200 && 1525 regp->initstat == 1) { 1526 printf("si%d: lost intr\n", i); 1527 lost++; 1528 } 1529 } else { 1530 regp->int_scounter = 0; 1531 } 1532 1533 /* 1534 * gripe about no input flow control.. 1535 */ 1536 pp = sc->sc_ports; 1537 for (port = 0; port < sc->sc_nport; pp++, port++) { 1538 if (pp->sp_delta_overflows > 0) { 1539 printf("si%d: %d tty level buffer overflows\n", 1540 i, pp->sp_delta_overflows); 1541 pp->sp_delta_overflows = 0; 1542 } 1543 } 1544 } 1545 if (lost || si_realpoll) 1546 si_intr(NULL); /* call intr with fake vector */ 1547out: 1548 splx(oldspl); 1549 1550 timeout(si_poll, (caddr_t)0L, si_pollrate); 1551} 1552#endif /* ifdef POLL */ 1553 1554/* 1555 * The interrupt handler polls ALL ports on ALL adapters each time 1556 * it is called. 1557 */ 1558 1559static BYTE si_rxbuf[SI_BUFFERSIZE]; /* input staging area */ 1560static BYTE si_txbuf[SI_BUFFERSIZE]; /* output staging area */ 1561 1562void 1563si_intr(void *arg) 1564{ 1565 struct si_softc *sc; 1566 struct si_port *pp; 1567 volatile struct si_channel *ccbp; 1568 struct tty *tp; 1569 volatile caddr_t maddr; 1570 BYTE op, ip; 1571 int x, card, port, n, i, isopen; 1572 volatile BYTE *z; 1573 BYTE c; 1574 1575 sc = arg; 1576 1577 DPRINT((0, arg == NULL ? DBG_POLL:DBG_INTR, "si_intr\n")); 1578 if (in_intr) 1579 return; 1580 in_intr = 1; 1581 1582 /* 1583 * When we get an int we poll all the channels and do ALL pending 1584 * work, not just the first one we find. This allows all cards to 1585 * share the same vector. 1586 * 1587 * XXX - But if we're sharing the vector with something that's NOT 1588 * a SI/XIO/SX card, we may be making more work for ourselves. 1589 */ 1590 for (card = 0; card < si_numunits; card++) { 1591 sc = devclass_get_softc(si_devclass, card); 1592 if (sc == NULL || sc->sc_type == SIEMPTY) 1593 continue; 1594 1595 /* 1596 * First, clear the interrupt 1597 */ 1598 switch(sc->sc_type) { 1599 case SIHOST: 1600 maddr = sc->sc_maddr; 1601 ((volatile struct si_reg *)maddr)->int_pending = 0; 1602 /* flag nothing pending */ 1603 *(maddr+SIINTCL) = 0x00; /* Set IRQ clear */ 1604 *(maddr+SIINTCL_CL) = 0x00; /* Clear IRQ clear */ 1605 break; 1606 case SIHOST2: 1607 maddr = sc->sc_maddr; 1608 ((volatile struct si_reg *)maddr)->int_pending = 0; 1609 *(maddr+SIPLIRQCLR) = 0x00; 1610 *(maddr+SIPLIRQCLR) = 0x10; 1611 break; 1612 case SIPCI: 1613 maddr = sc->sc_maddr; 1614 ((volatile struct si_reg *)maddr)->int_pending = 0; 1615 *(maddr+SIPCIINTCL) = 0x0; 1616 break; 1617 case SIJETPCI: /* fall through to JETISA case */ 1618 case SIJETISA: 1619 maddr = sc->sc_maddr; 1620 ((volatile struct si_reg *)maddr)->int_pending = 0; 1621 *(maddr+SIJETINTCL) = 0x0; 1622 break; 1623 case SIEISA: 1624 maddr = sc->sc_maddr; 1625 ((volatile struct si_reg *)maddr)->int_pending = 0; 1626 (void)inb(sc->sc_iobase + 3); 1627 break; 1628 case SIEMPTY: 1629 default: 1630 continue; 1631 } 1632 ((volatile struct si_reg *)maddr)->int_scounter = 0; 1633 1634 /* 1635 * check each port 1636 */ 1637 for (pp = sc->sc_ports, port = 0; port < sc->sc_nport; 1638 pp++, port++) { 1639 ccbp = pp->sp_ccb; 1640 tp = pp->sp_tty; 1641 1642 /* 1643 * See if a command has completed ? 1644 */ 1645 if (ccbp->hi_stat != pp->sp_pend) { 1646 DPRINT((pp, DBG_INTR, 1647 "si_intr hi_stat = 0x%x, pend = %d\n", 1648 ccbp->hi_stat, pp->sp_pend)); 1649 switch(pp->sp_pend) { 1650 case LOPEN: 1651 case MPEND: 1652 case MOPEN: 1653 case CONFIG: 1654 case SBREAK: 1655 case EBREAK: 1656 pp->sp_pend = ccbp->hi_stat; 1657 /* sleeping in si_command */ 1658 wakeup(&pp->sp_state); 1659 break; 1660 default: 1661 pp->sp_pend = ccbp->hi_stat; 1662 } 1663 } 1664 1665 /* 1666 * Continue on if it's closed 1667 */ 1668 if (ccbp->hi_stat == IDLE_CLOSE) { 1669 continue; 1670 } 1671 1672 /* 1673 * Do modem state change if not a local device 1674 */ 1675 si_modem_state(pp, tp, ccbp->hi_ip); 1676 1677 /* 1678 * Check to see if we should 'receive' characters. 1679 */ 1680 if (tp->t_state & TS_CONNECTED && 1681 tp->t_state & TS_ISOPEN) 1682 isopen = 1; 1683 else 1684 isopen = 0; 1685 1686 /* 1687 * Do input break processing 1688 */ 1689 if (ccbp->hi_state & ST_BREAK) { 1690 if (isopen) { 1691 (*linesw[tp->t_line].l_rint)(TTY_BI, tp); 1692 } 1693 ccbp->hi_state &= ~ST_BREAK; /* A Bit iffy this */ 1694 DPRINT((pp, DBG_INTR, "si_intr break\n")); 1695 } 1696 1697 /* 1698 * Do RX stuff - if not open then dump any characters. 1699 * XXX: This is VERY messy and needs to be cleaned up. 1700 * 1701 * XXX: can we leave data in the host adapter buffer 1702 * when the clists are full? That may be dangerous 1703 * if the user cannot get an interrupt signal through. 1704 */ 1705 1706 more_rx: /* XXX Sorry. the nesting was driving me bats! :-( */ 1707 1708 if (!isopen) { 1709 ccbp->hi_rxopos = ccbp->hi_rxipos; 1710 goto end_rx; 1711 } 1712 1713 /* 1714 * If the tty input buffers are blocked, stop emptying 1715 * the incoming buffers and let the auto flow control 1716 * assert.. 1717 */ 1718 if (tp->t_state & TS_TBLOCK) { 1719 goto end_rx; 1720 } 1721 1722 /* 1723 * Process read characters if not skipped above 1724 */ 1725 op = ccbp->hi_rxopos; 1726 ip = ccbp->hi_rxipos; 1727 c = ip - op; 1728 if (c == 0) { 1729 goto end_rx; 1730 } 1731 1732 n = c & 0xff; 1733 if (n > 250) 1734 n = 250; 1735 1736 DPRINT((pp, DBG_INTR, "n = %d, op = %d, ip = %d\n", 1737 n, op, ip)); 1738 1739 /* 1740 * Suck characters out of host card buffer into the 1741 * "input staging buffer" - so that we dont leave the 1742 * host card in limbo while we're possibly echoing 1743 * characters and possibly flushing input inside the 1744 * ldisc l_rint() routine. 1745 */ 1746 if (n <= SI_BUFFERSIZE - op) { 1747 1748 DPRINT((pp, DBG_INTR, "\tsingle copy\n")); 1749 z = ccbp->hi_rxbuf + op; 1750 si_vbcopy(z, si_rxbuf, n); 1751 1752 op += n; 1753 } else { 1754 x = SI_BUFFERSIZE - op; 1755 1756 DPRINT((pp, DBG_INTR, "\tdouble part 1 %d\n", x)); 1757 z = ccbp->hi_rxbuf + op; 1758 si_vbcopy(z, si_rxbuf, x); 1759 1760 DPRINT((pp, DBG_INTR, "\tdouble part 2 %d\n", 1761 n - x)); 1762 z = ccbp->hi_rxbuf; 1763 si_vbcopy(z, si_rxbuf + x, n - x); 1764 1765 op += n; 1766 } 1767 1768 /* clear collected characters from buffer */ 1769 ccbp->hi_rxopos = op; 1770 1771 DPRINT((pp, DBG_INTR, "n = %d, op = %d, ip = %d\n", 1772 n, op, ip)); 1773 1774 /* 1775 * at this point... 1776 * n = number of chars placed in si_rxbuf 1777 */ 1778 1779 /* 1780 * Avoid the grotesquely inefficient lineswitch 1781 * routine (ttyinput) in "raw" mode. It usually 1782 * takes about 450 instructions (that's without 1783 * canonical processing or echo!). slinput is 1784 * reasonably fast (usually 40 instructions 1785 * plus call overhead). 1786 */ 1787 if (tp->t_state & TS_CAN_BYPASS_L_RINT) { 1788 1789 /* block if the driver supports it */ 1790 if (tp->t_rawq.c_cc + n >= SI_I_HIGH_WATER && 1791 (tp->t_cflag & CRTS_IFLOW || 1792 tp->t_iflag & IXOFF) && 1793 !(tp->t_state & TS_TBLOCK)) 1794 ttyblock(tp); 1795 1796 tk_nin += n; 1797 tk_rawcc += n; 1798 tp->t_rawcc += n; 1799 1800 pp->sp_delta_overflows += 1801 b_to_q((char *)si_rxbuf, n, &tp->t_rawq); 1802 1803 ttwakeup(tp); 1804 if (tp->t_state & TS_TTSTOP && 1805 (tp->t_iflag & IXANY || 1806 tp->t_cc[VSTART] == tp->t_cc[VSTOP])) { 1807 tp->t_state &= ~TS_TTSTOP; 1808 tp->t_lflag &= ~FLUSHO; 1809 si_start(tp); 1810 } 1811 } else { 1812 /* 1813 * It'd be nice to not have to go through the 1814 * function call overhead for each char here. 1815 * It'd be nice to block input it, saving a 1816 * loop here and the call/return overhead. 1817 */ 1818 for(x = 0; x < n; x++) { 1819 i = si_rxbuf[x]; 1820 if ((*linesw[tp->t_line].l_rint)(i, tp) 1821 == -1) { 1822 pp->sp_delta_overflows++; 1823 } 1824 } 1825 } 1826 goto more_rx; /* try for more until RXbuf is empty */ 1827 1828 end_rx: /* XXX: Again, sorry about the gotos.. :-) */ 1829 1830 /* 1831 * Do TX stuff 1832 */ 1833 (*linesw[tp->t_line].l_start)(tp); 1834 1835 } /* end of for (all ports on this controller) */ 1836 } /* end of for (all controllers) */ 1837 1838 in_intr = 0; 1839 DPRINT((0, arg == NULL ? DBG_POLL:DBG_INTR, "end si_intr\n")); 1840} 1841 1842/* 1843 * Nudge the transmitter... 1844 * 1845 * XXX: I inherited some funny code here. It implies the host card only 1846 * interrupts when the transmit buffer reaches the low-water-mark, and does 1847 * not interrupt when it's actually hits empty. In some cases, we have 1848 * processes waiting for complete drain, and we need to simulate an interrupt 1849 * about when we think the buffer is going to be empty (and retry if not). 1850 * I really am not certain about this... I *need* the hardware manuals. 1851 */ 1852static void 1853si_start(struct tty *tp) 1854{ 1855 struct si_port *pp; 1856 volatile struct si_channel *ccbp; 1857 struct clist *qp; 1858 BYTE ipos; 1859 int nchar; 1860 int oldspl, count, n, amount, buffer_full; 1861 1862 oldspl = spltty(); 1863 1864 qp = &tp->t_outq; 1865 pp = TP2PP(tp); 1866 1867 DPRINT((pp, DBG_ENTRY|DBG_START, 1868 "si_start(%x) t_state %x sp_state %x t_outq.c_cc %d\n", 1869 tp, tp->t_state, pp->sp_state, qp->c_cc)); 1870 1871 if (tp->t_state & (TS_TIMEOUT|TS_TTSTOP)) 1872 goto out; 1873 1874 buffer_full = 0; 1875 ccbp = pp->sp_ccb; 1876 1877 count = (int)ccbp->hi_txipos - (int)ccbp->hi_txopos; 1878 DPRINT((pp, DBG_START, "count %d\n", (BYTE)count)); 1879 1880 while ((nchar = qp->c_cc) > 0) { 1881 if ((BYTE)count >= 255) { 1882 buffer_full++; 1883 break; 1884 } 1885 amount = min(nchar, (255 - (BYTE)count)); 1886 ipos = (unsigned int)ccbp->hi_txipos; 1887 n = q_to_b(&tp->t_outq, si_txbuf, amount); 1888 /* will it fit in one lump? */ 1889 if ((SI_BUFFERSIZE - ipos) >= n) { 1890 si_bcopyv(si_txbuf, &ccbp->hi_txbuf[ipos], n); 1891 } else { 1892 si_bcopyv(si_txbuf, &ccbp->hi_txbuf[ipos], 1893 SI_BUFFERSIZE - ipos); 1894 si_bcopyv(si_txbuf + (SI_BUFFERSIZE - ipos), 1895 &ccbp->hi_txbuf[0], n - (SI_BUFFERSIZE - ipos)); 1896 } 1897 ccbp->hi_txipos += n; 1898 count = (int)ccbp->hi_txipos - (int)ccbp->hi_txopos; 1899 } 1900 1901 if (count != 0 && nchar == 0) { 1902 tp->t_state |= TS_BUSY; 1903 } else { 1904 tp->t_state &= ~TS_BUSY; 1905 } 1906 1907 /* wakeup time? */ 1908 ttwwakeup(tp); 1909 1910 DPRINT((pp, DBG_START, "count %d, nchar %d, tp->t_state 0x%x\n", 1911 (BYTE)count, nchar, tp->t_state)); 1912 1913 if (tp->t_state & TS_BUSY) 1914 { 1915 int time; 1916 1917 time = ttspeedtab(tp->t_ospeed, chartimes); 1918 1919 if (time > 0) { 1920 if (time < nchar) 1921 time = nchar / time; 1922 else 1923 time = 2; 1924 } else { 1925 DPRINT((pp, DBG_START, 1926 "bad char time value! %d\n", time)); 1927 time = hz/10; 1928 } 1929 1930 if ((pp->sp_state & (SS_LSTART|SS_INLSTART)) == SS_LSTART) { 1931 untimeout(si_lstart, (caddr_t)pp, pp->lstart_ch); 1932 } else { 1933 pp->sp_state |= SS_LSTART; 1934 } 1935 DPRINT((pp, DBG_START, "arming lstart, time=%d\n", time)); 1936 pp->lstart_ch = timeout(si_lstart, (caddr_t)pp, time); 1937 } 1938 1939out: 1940 splx(oldspl); 1941 DPRINT((pp, DBG_EXIT|DBG_START, "leave si_start()\n")); 1942} 1943 1944/* 1945 * Note: called at splsoftclock from the timeout code 1946 * This has to deal with two things... cause wakeups while waiting for 1947 * tty drains on last process exit, and call l_start at about the right 1948 * time for protocols like ppp. 1949 */ 1950static void 1951si_lstart(void *arg) 1952{ 1953 struct si_port *pp = arg; 1954 struct tty *tp; 1955 int oldspl; 1956 1957 DPRINT((pp, DBG_ENTRY|DBG_LSTART, "si_lstart(%x) sp_state %x\n", 1958 pp, pp->sp_state)); 1959 1960 oldspl = spltty(); 1961 1962 if ((pp->sp_state & SS_OPEN) == 0 || (pp->sp_state & SS_LSTART) == 0) { 1963 splx(oldspl); 1964 return; 1965 } 1966 pp->sp_state &= ~SS_LSTART; 1967 pp->sp_state |= SS_INLSTART; 1968 1969 tp = pp->sp_tty; 1970 1971 /* deal with the process exit case */ 1972 ttwwakeup(tp); 1973 1974 /* nudge protocols - eg: ppp */ 1975 (*linesw[tp->t_line].l_start)(tp); 1976 1977 pp->sp_state &= ~SS_INLSTART; 1978 splx(oldspl); 1979} 1980 1981/* 1982 * Stop output on a line. called at spltty(); 1983 */ 1984static void 1985si_stop(struct tty *tp, int rw) 1986{ 1987 volatile struct si_channel *ccbp; 1988 struct si_port *pp; 1989 1990 pp = TP2PP(tp); 1991 ccbp = pp->sp_ccb; 1992 1993 DPRINT((TP2PP(tp), DBG_ENTRY|DBG_STOP, "si_stop(%x,%x)\n", tp, rw)); 1994 1995 /* XXX: must check (rw & FWRITE | FREAD) etc flushing... */ 1996 if (rw & FWRITE) { 1997 /* what level are we meant to be flushing anyway? */ 1998 if (tp->t_state & TS_BUSY) { 1999 si_command(TP2PP(tp), WFLUSH, SI_NOWAIT); 2000 tp->t_state &= ~TS_BUSY; 2001 ttwwakeup(tp); /* Bruce???? */ 2002 } 2003 } 2004#if 1 /* XXX: this doesn't work right yet.. */ 2005 /* XXX: this may have been failing because we used to call l_rint() 2006 * while we were looping based on these two counters. Now, we collect 2007 * the data and then loop stuffing it into l_rint(), making this 2008 * useless. Should we cause this to blow away the staging buffer? 2009 */ 2010 if (rw & FREAD) { 2011 ccbp->hi_rxopos = ccbp->hi_rxipos; 2012 } 2013#endif 2014} 2015 2016/* 2017 * Issue a command to the host card CPU. 2018 */ 2019 2020static void 2021si_command(struct si_port *pp, int cmd, int waitflag) 2022{ 2023 int oldspl; 2024 volatile struct si_channel *ccbp = pp->sp_ccb; 2025 int x; 2026 2027 DPRINT((pp, DBG_ENTRY|DBG_PARAM, "si_command(%x,%x,%d): hi_stat 0x%x\n", 2028 pp, cmd, waitflag, ccbp->hi_stat)); 2029 2030 oldspl = spltty(); /* Keep others out */ 2031 2032 /* wait until it's finished what it was doing.. */ 2033 /* XXX: sits in IDLE_BREAK until something disturbs it or break 2034 * is turned off. */ 2035 while((x = ccbp->hi_stat) != IDLE_OPEN && 2036 x != IDLE_CLOSE && 2037 x != IDLE_BREAK && 2038 x != cmd) { 2039 if (in_intr) { /* Prevent sleep in intr */ 2040 DPRINT((pp, DBG_PARAM, 2041 "cmd intr collision - completing %d\trequested %d\n", 2042 x, cmd)); 2043 splx(oldspl); 2044 return; 2045 } else if (ttysleep(pp->sp_tty, (caddr_t)&pp->sp_state, TTIPRI|PCATCH, 2046 "sicmd1", 1)) { 2047 splx(oldspl); 2048 return; 2049 } 2050 } 2051 /* it should now be in IDLE_{OPEN|CLOSE|BREAK}, or "cmd" */ 2052 2053 /* if there was a pending command, cause a state-change wakeup */ 2054 switch(pp->sp_pend) { 2055 case LOPEN: 2056 case MPEND: 2057 case MOPEN: 2058 case CONFIG: 2059 case SBREAK: 2060 case EBREAK: 2061 wakeup(&pp->sp_state); 2062 break; 2063 default: 2064 break; 2065 } 2066 2067 pp->sp_pend = cmd; /* New command pending */ 2068 ccbp->hi_stat = cmd; /* Post it */ 2069 2070 if (waitflag) { 2071 if (in_intr) { /* If in interrupt handler */ 2072 DPRINT((pp, DBG_PARAM, 2073 "attempt to sleep in si_intr - cmd req %d\n", 2074 cmd)); 2075 splx(oldspl); 2076 return; 2077 } else while(ccbp->hi_stat != IDLE_OPEN && 2078 ccbp->hi_stat != IDLE_BREAK) { 2079 if (ttysleep(pp->sp_tty, (caddr_t)&pp->sp_state, TTIPRI|PCATCH, 2080 "sicmd2", 0)) 2081 break; 2082 } 2083 } 2084 splx(oldspl); 2085} 2086 2087static void 2088si_disc_optim(struct tty *tp, struct termios *t, struct si_port *pp) 2089{ 2090 /* 2091 * XXX can skip a lot more cases if Smarts. Maybe 2092 * (IGNCR | ISTRIP | IXON) in c_iflag. But perhaps we 2093 * shouldn't skip if (TS_CNTTB | TS_LNCH) is set in t_state. 2094 */ 2095 if (!(t->c_iflag & (ICRNL | IGNCR | IMAXBEL | INLCR | ISTRIP | IXON)) && 2096 (!(t->c_iflag & BRKINT) || (t->c_iflag & IGNBRK)) && 2097 (!(t->c_iflag & PARMRK) || 2098 (t->c_iflag & (IGNPAR | IGNBRK)) == (IGNPAR | IGNBRK)) && 2099 !(t->c_lflag & (ECHO | ICANON | IEXTEN | ISIG | PENDIN)) && 2100 linesw[tp->t_line].l_rint == ttyinput) 2101 tp->t_state |= TS_CAN_BYPASS_L_RINT; 2102 else 2103 tp->t_state &= ~TS_CAN_BYPASS_L_RINT; 2104 pp->sp_hotchar = linesw[tp->t_line].l_hotchar; 2105 DPRINT((pp, DBG_OPTIM, "bypass: %s, hotchar: %x\n", 2106 (tp->t_state & TS_CAN_BYPASS_L_RINT) ? "on" : "off", 2107 pp->sp_hotchar)); 2108} 2109 2110 2111#ifdef SI_DEBUG 2112 2113void 2114si_dprintf(struct si_port *pp, int flags, const char *fmt, ...) 2115{ 2116 va_list ap; 2117 2118 if ((pp == NULL && (si_debug&flags)) || 2119 (pp != NULL && ((pp->sp_debug&flags) || (si_debug&flags)))) { 2120 if (pp != NULL) 2121 printf("%ci%d(%d): ", 's', 2122 (int)SI_CARD(minor(pp->sp_tty->t_dev)), 2123 (int)SI_PORT(minor(pp->sp_tty->t_dev))); 2124 va_start(ap, fmt); 2125 vprintf(fmt, ap); 2126 va_end(ap); 2127 } 2128} 2129 2130static char * 2131si_mctl2str(enum si_mctl cmd) 2132{ 2133 switch (cmd) { 2134 case GET: 2135 return("GET"); 2136 case SET: 2137 return("SET"); 2138 case BIS: 2139 return("BIS"); 2140 case BIC: 2141 return("BIC"); 2142 } 2143 return("BAD"); 2144} 2145 2146#endif /* DEBUG */ 2147 2148static char * 2149si_modulename(int host_type, int uart_type) 2150{ 2151 switch (host_type) { 2152 /* Z280 based cards */ 2153 case SIEISA: 2154 case SIHOST2: 2155 case SIHOST: 2156 case SIPCI: 2157 switch (uart_type) { 2158 case 0: 2159 return(" (XIO)"); 2160 case 1: 2161 return(" (SI)"); 2162 } 2163 break; 2164 /* T225 based hosts */ 2165 case SIJETPCI: 2166 case SIJETISA: 2167 switch (uart_type) { 2168 case 0: 2169 return(" (SI)"); 2170 case 40: 2171 return(" (XIO)"); 2172 case 72: 2173 return(" (SXDC)"); 2174 } 2175 break; 2176 } 2177 return(""); 2178}
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