1 /* mp.c 1.3 88/03/05 */ 2 3 #include "mp.h" 4 #if NMP > 0 5 /* 6 * Multi Protocol Communications Controller (MPCC). 7 * Asynchronous Terminal Protocol Support. 8 */ 9 #include "../machine/pte.h" 10 #include "../machine/mtpr.h" 11 12 #include "param.h" 13 #include "ioctl.h" 14 #include "tty.h" 15 #include "dir.h" 16 #include "user.h" 17 #include "map.h" 18 #include "buf.h" 19 #include "conf.h" 20 #include "file.h" 21 #include "uio.h" 22 #include "errno.h" 23 #include "syslog.h" 24 #include "vmmac.h" 25 #include "kernel.h" 26 #include "clist.h" 27 28 #include "../tahoevba/vbavar.h" 29 #include "../tahoevba/mpreg.h" 30 31 #define MPCHUNK 16 32 #define MPPORT(n) ((n) & 0xf) 33 #define MPUNIT(n) ((n) >> 4) 34 35 /* 36 * Driver information for auto-configuration stuff. 37 */ 38 int mpprobe(), mpattach(), mpintr(); 39 struct vba_device *mpinfo[NMP]; 40 long mpstd[] = { 0 }; 41 struct vba_driver mpdriver = 42 { mpprobe, 0, mpattach, 0, mpstd, "mp", mpinfo }; 43 44 int mpstart(); 45 struct mpevent *mpparam(); 46 struct mpevent *mp_getevent(); 47 48 /* 49 * The following structure is needed to deal with mpcc's convoluted 50 * method for locating it's mblok structures (hold your stomach). 51 * When an mpcc is reset at boot time it searches host memory 52 * looking for a string that says ``ThIs Is MpCc''. The mpcc 53 * then reads the structure to locate the pointer to it's mblok 54 * structure (you can wretch now). 55 */ 56 struct mpbogus { 57 char s[12]; /* `ThIs Is MpCc'' */ 58 u_char status; 59 u_char unused; 60 u_short magic; 61 struct mblok *mb; 62 struct mblok *mbloks[NMP]; /* can support at most 16 mpcc's */ 63 } mpbogus = { 'T','h','I','s',' ','I','s',' ','M','p','C','c' }; 64 65 /* 66 * Software state per unit. 67 */ 68 struct mpsoftc { 69 u_int ms_ivec; /* interrupt vector */ 70 u_int ms_softCAR; /* software carrier for async */ 71 struct mblok *ms_mb; /* mpcc status area */ 72 struct vb_buf ms_buf; /* vba resources for ms_mb */ 73 struct hxmtl ms_hxl[MPMAXPORT];/* host transmit list */ 74 struct asyncparam ms_async[MPMAXPORT][MPINSET];/* async structs */ 75 char ms_cbuf[MPMAXPORT][MPOUTSET][CBSIZE];/* input character buffers */ 76 } mp_softc[NMP]; 77 78 struct tty mp_tty[NMP*MPCHUNK]; 79 #ifndef lint 80 int nmp = NMP*MPCHUNK; 81 #endif 82 83 int ttrstrt(); 84 85 mpprobe(reg, vi) 86 caddr_t reg; 87 struct vba_device *vi; 88 { 89 register int br, cvec; 90 register struct mpsoftc *ms; 91 92 #ifdef lint 93 br = 0; cvec = br; br = cvec; 94 mpintr(0); 95 #endif 96 if (badaddr(reg, 2)) 97 return (0); 98 ms = &mp_softc[vi->ui_unit]; 99 /* 100 * Allocate page tables and mblok 101 * structure (mblok in non-cached memory). 102 */ 103 if (vbainit(&ms->ms_buf, sizeof (struct mblok), VB_32BIT) == 0) { 104 printf("mp%d: vbainit failed\n", vi->ui_unit); 105 return (0); 106 } 107 ms->ms_mb = (struct mblok *)ms->ms_buf.vb_rawbuf; 108 ms->ms_ivec = MPINTRBASE + 2*vi->ui_unit; /* XXX */ 109 br = 0x14, cvec = ms->ms_ivec; /* XXX */ 110 return (sizeof (struct mblok)); 111 } 112 113 mpattach(vi) 114 register struct vba_device *vi; 115 { 116 register struct mpsoftc *ms = &mp_softc[vi->ui_unit]; 117 118 ms->ms_softCAR = vi->ui_flags; 119 /* 120 * Setup pointer to mblok, initialize bogus 121 * status block used by mpcc to locate the pointer 122 * and then poke the mpcc to get it to search host 123 * memory to find mblok pointer. 124 */ 125 mpbogus.mbloks[vi->ui_unit] = (struct mblok *)ms->ms_buf.vb_physbuf; 126 *(short *)vi->ui_addr = 0x100; /* magic */ 127 } 128 129 /* 130 * Open an mpcc port. 131 */ 132 mpopen(dev, mode) 133 dev_t dev; 134 { 135 register struct tty *tp; 136 register struct mpsoftc *ms; 137 int error, s, port, unit, mpu; 138 struct vba_device *vi; 139 struct mpport *mp; 140 struct mpevent *ev; 141 142 unit = minor(dev); 143 mpu = MPUNIT(unit); 144 if (mpu >= NMP || (vi = mpinfo[mpu]) == 0 || vi->ui_alive == 0) 145 return (ENXIO); 146 tp = &mp_tty[unit]; 147 if (tp->t_state & TS_XCLUDE && u.u_uid != 0) 148 return (EBUSY); 149 ms = &mp_softc[mpu]; 150 port = MPPORT(unit); 151 if (ms->ms_mb->mb_proto[port] != MPPROTO_ASYNC || 152 ms->ms_mb->mb_status != MP_OPOPEN) 153 return (ENXIO); 154 mp = &ms->ms_mb->mb_port[port]; /* host mpcc struct */ 155 s = spl8(); 156 while (mp->mp_flags & MP_PROGRESS) 157 sleep((caddr_t)&tp->t_canq, TTIPRI); 158 while (tp->t_state & TS_WOPEN) 159 sleep((caddr_t)&tp->t_canq, TTIPRI); 160 if (tp->t_state & TS_ISOPEN) { 161 splx(s); 162 return (0); 163 } 164 tp->t_state |= TS_WOPEN; 165 tp->t_addr = (caddr_t)ms; 166 tp->t_oproc = mpstart; 167 tp->t_dev = dev; 168 ttychars(tp); 169 if (tp->t_ispeed == 0) { 170 tp->t_ispeed = B9600; 171 tp->t_ospeed = B9600; 172 tp->t_flags |= ODDP|EVENP|ECHO; 173 } 174 /* 175 * Initialize port state: init MPCC interface 176 * structures for port and setup modem control. 177 */ 178 mp->mp_proto = MPPROTO_ASYNC; /* XXX */ 179 error = mpportinit(ms, mp, port); 180 if (error) 181 goto bad; 182 ev = mpparam(unit); 183 if (ev == 0) { 184 error = ENOBUFS; 185 goto bad; 186 } 187 mpcmd(ev, EVCMD_OPEN, 0, ms->ms_mb, port); 188 while ((tp->t_state & TS_CARR_ON) == 0) 189 sleep((caddr_t)&tp->t_rawq, TTIPRI); 190 error = mpmodem(unit, MMOD_ON); 191 if (error) 192 goto bad; 193 while ((tp->t_state & TS_CARR_ON) == 0) 194 sleep((caddr_t)&tp->t_rawq, TTIPRI); 195 error = (*linesw[tp->t_line].l_open)(dev,tp); 196 done: 197 splx(s); 198 /* wakeup anyone waiting for open to complete */ 199 wakeup((caddr_t)&tp->t_canq); 200 201 return (error); 202 bad: 203 tp->t_state &= ~TS_WOPEN; 204 goto done; 205 } 206 207 /* 208 * Close an mpcc port. 209 */ 210 mpclose(dev) 211 dev_t dev; 212 { 213 register struct tty *tp; 214 register struct mpport *mp; 215 register struct mpevent *ev; 216 int s, port, unit, error; 217 struct mblok *mb; 218 219 unit = minor(dev); 220 tp = &mp_tty[unit]; 221 port = MPPORT(unit); 222 mb = mp_softc[MPUNIT(unit)].ms_mb; 223 mp = &mb->mb_port[port]; 224 s = spl8(); 225 if (mp->mp_flags & MP_PROGRESS) { /* close in progress */ 226 if (mp->mp_flags & MP_REMBSY) { 227 mp->mp_flags &= ~MP_REMBSY; 228 splx(s); 229 return (0); 230 } 231 while (mp->mp_flags & MP_PROGRESS) 232 sleep((caddr_t)&tp->t_canq,TTIPRI); 233 } 234 error = 0; 235 mp->mp_flags |= MP_PROGRESS; 236 (*linesw[tp->t_line].l_close)(tp); 237 if (tp->t_state & TS_HUPCLS || (tp->t_state & TS_ISOPEN) == 0) 238 if (error = mpmodem(unit, MMOD_OFF)) { 239 mp->mp_flags &= ~MP_PROGRESS; 240 goto out; 241 } 242 while (tp->t_state & TS_FLUSH) /* ??? */ 243 sleep((caddr_t)&tp->t_state, TTOPRI); /* ??? */ 244 ttyclose(tp); 245 ev = mp_getevent(mp, unit); 246 if (ev == 0) { 247 error = ENOBUFS; 248 goto out; 249 } 250 mpcmd(ev, EVCMD_CLOSE, 0, mb, port); 251 out: 252 if (mp->mp_flags & MP_REMBSY) 253 mpclean(mb, port); 254 splx(s); 255 return (error); 256 } 257 258 /* 259 * Read from an mpcc port. 260 */ 261 mpread(dev, uio) 262 dev_t dev; 263 struct uio *uio; 264 { 265 struct tty *tp; 266 267 tp = &mp_tty[minor(dev)]; 268 return ((*linesw[tp->t_line].l_read)(tp, uio)); 269 } 270 271 /* 272 * Write to an mpcc port. 273 */ 274 mpwrite(dev, uio) 275 dev_t dev; 276 struct uio *uio; 277 { 278 struct tty *tp; 279 280 tp = &mp_tty[minor(dev)]; 281 return ((*linesw[tp->t_line].l_write)(tp, uio)); 282 } 283 284 /* 285 * Ioctl for a mpcc port 286 */ 287 mpioctl(dev, cmd, data, flag) 288 dev_t dev; 289 caddr_t data; 290 { 291 register struct tty *tp; 292 register struct mpsoftc *ms; 293 register struct mpevent *ev; 294 register struct mpport *mp; 295 int s, port, error, unit; 296 struct mblok *mb; 297 298 unit = minor(dev); 299 tp = &mp_tty[unit]; 300 ms = &mp_softc[MPUNIT(unit)]; 301 mb = ms->ms_mb; 302 error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag); 303 if (error >= 0) 304 return (error); 305 error = ttioctl(tp, cmd, data, flag); 306 if (error >= 0) { 307 if (cmd == TIOCSETP || cmd == TIOCSETN || cmd == TIOCLBIS || 308 cmd == TIOCLBIC || cmd == TIOCLSET) { 309 ev = mpparam(unit); 310 if (ev == 0) 311 error = ENOBUFS; 312 else 313 mpcmd(ev, EVCMD_IOCTL, A_CHGALL, mb, 314 MPPORT(unit)); 315 } 316 return (error); 317 } 318 switch (cmd) { 319 case TIOCSBRK: /* send break */ 320 case TIOCCBRK: /* clear break */ 321 port = MPPORT(unit); 322 mp = &mb->mb_port[port]; 323 s = spl8(); 324 ev = mp_getevent(mp, unit); 325 if (ev) 326 mpcmd(ev, EVCMD_IOCTL, 327 (cmd == TIOCSBRK ? A_BRKON : A_BRKOFF), 328 mb, port); 329 else 330 error = ENOBUFS; 331 splx(s); 332 break; 333 case TIOCSDTR: /* set dtr control line */ 334 break; 335 case TIOCCDTR: /* clear dtr control line */ 336 break; 337 default: 338 error = ENOTTY; 339 break; 340 } 341 return (error); 342 } 343 344 struct mpevent * 345 mpparam(unit) 346 int unit; 347 { 348 register struct mpevent *ev; 349 register struct mpport *mp; 350 register struct tty *tp; 351 struct mblok *mb; 352 struct mpsoftc *ms; 353 register struct asyncparam *asp; 354 int port; 355 356 ms = &mp_softc[MPUNIT(unit)]; 357 mb = ms->ms_mb; 358 port = MPPORT(unit); 359 mp = &mb->mb_port[port]; 360 ev = mp_getevent(mp, unit); /* XXX */ 361 if (ev == 0) 362 return (ev); 363 tp = &mp_tty[unit]; 364 /* YUCK */ 365 asp = &ms->ms_async[port][mp->mp_on?mp->mp_on-1:MPINSET-1]; 366 asp->ap_xon = tp->t_startc; 367 asp->ap_xoff = tp->t_stopc; 368 asp->ap_xena = 369 (tp->t_flags & (RAW|TANDEM)) == TANDEM ? MPA_ENA : MPA_DIS; 370 asp->ap_xany = (tp->t_flags & DECCTQ ? MPA_DIS : MPA_ENA); 371 #ifdef notnow 372 if (tp->t_flags & (RAW|LITOUT|PASS8)) { 373 #endif 374 asp->ap_data = MPCHAR_8; 375 asp->ap_parity = MPPAR_NONE; 376 #ifdef notnow 377 } else { 378 asp->ap_data = MPCHAR_7; 379 if ((tp->t_flags & (EVENP|ODDP)) == ODDP) 380 asp->ap_parity = MPPAR_ODD; 381 else 382 asp->ap_parity = MPPAR_EVEN; 383 } 384 #endif 385 if (tp->t_ospeed == B110) 386 asp->ap_stop = MPSTOP_2; 387 else 388 asp->ap_stop = MPSTOP_1; 389 if (tp->t_ospeed == EXTA || tp->t_ospeed == EXTB) 390 asp->ap_baud = M19200; 391 else 392 asp->ap_baud = tp->t_ospeed; 393 asp->ap_loop = MPA_DIS; /* disable loopback */ 394 asp->ap_rtimer = A_RCVTIM; /* default receive timer */ 395 if (ms->ms_softCAR & (1<<port)) 396 setm(&asp->ap_modem, A_DTR, ASSERT); 397 else 398 setm(&asp->ap_modem, A_DTR, AUTO); 399 seti(&asp->ap_intena, A_DCD); 400 return (ev); 401 } 402 403 mpstart(tp) 404 register struct tty *tp; 405 { 406 register struct mpevent *ev; 407 register struct mpport *mp; 408 struct mblok *mb; 409 struct mpsoftc *ms; 410 int port, unit, xcnt, n, s, i; 411 struct hxmtl *hxp; 412 struct clist outq; 413 414 s = spl8(); 415 unit = minor(tp->t_dev); 416 ms = &mp_softc[MPUNIT(unit)]; 417 mb = ms->ms_mb; 418 port = MPPORT(unit); 419 mp = &mb->mb_port[port]; 420 hxp = &ms->ms_hxl[port]; 421 xcnt = 0; 422 outq = tp->t_outq; 423 for (i = 0; i < MPXMIT; i++) { 424 if (tp->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP)) 425 break; 426 if (outq.c_cc <= TTLOWAT(tp)) { 427 if (tp->t_state & TS_ASLEEP) { 428 tp->t_state &= ~TS_ASLEEP; 429 wakeup((caddr_t)&tp->t_outq); 430 } 431 if (tp->t_wsel) { 432 selwakeup(tp->t_wsel, tp->t_state & TS_WCOLL); 433 tp->t_wsel = 0; 434 tp->t_state &= ~TS_WCOLL; 435 } 436 } 437 if (outq.c_cc == 0) 438 break; 439 /* 440 * If we're not currently busy outputting, 441 * and there is data to be output, set up 442 * port transmit structure to send to mpcc. 443 */ 444 if (tp->t_flags & (RAW|LITOUT)) 445 n = ndqb(&outq, 0); 446 else { 447 n = ndqb(&outq, 0200); 448 if (n == 0) { 449 n = getc(&outq); 450 timeout(ttrstrt, (caddr_t)tp, (n&0177)+6); 451 tp->t_state |= TS_TIMEOUT; 452 break; 453 } 454 } 455 hxp->dblock[i] = (caddr_t)vtoph(0, (int)outq.c_cf); 456 hxp->size[i] = n; 457 xcnt++; /* count of xmts to send */ 458 ndadvance(&outq, n); 459 } 460 /* 461 * If data to send, poke mpcc. 462 */ 463 if (xcnt) { 464 ev = mp_getevent(mp, unit); 465 if (ev == 0) { 466 tp->t_state &= ~(TS_BUSY|TS_TIMEOUT); 467 } else { 468 tp->t_state |= TS_BUSY; 469 ev->ev_count = xcnt; 470 mpcmd(ev, EVCMD_WRITE, 0, mb, MPPORT(unit)); 471 } 472 } 473 splx(s); 474 } 475 476 /* 477 * Advance cc bytes from q but don't free memory. 478 */ 479 ndadvance(q, cc) 480 register struct clist *q; 481 register cc; 482 { 483 register struct cblock *bp; 484 char *end; 485 int rem, s; 486 487 s = spltty(); 488 if (q->c_cc <= 0) 489 goto out; 490 while (cc>0 && q->c_cc) { 491 bp = (struct cblock *)((int)q->c_cf & ~CROUND); 492 if ((int)bp == (((int)q->c_cl-1) & ~CROUND)) { 493 end = q->c_cl; 494 } else { 495 end = (char *)((int)bp + sizeof (struct cblock)); 496 } 497 rem = end - q->c_cf; 498 if (cc >= rem) { 499 cc -= rem; 500 q->c_cc -= rem; 501 q->c_cf = bp->c_next->c_info; 502 } else { 503 q->c_cc -= cc; 504 q->c_cf += cc; 505 break; 506 } 507 } 508 if (q->c_cc <= 0) { 509 q->c_cf = q->c_cl = NULL; 510 q->c_cc = 0; 511 } 512 out: 513 splx(s); 514 } 515 516 /* 517 * Stop output on a line, e.g. for ^S/^Q or output flush. 518 */ 519 mpstop(tp, rw) 520 register struct tty *tp; 521 int rw; 522 { 523 int s, port; 524 struct mpevent *ev; 525 struct mblok *mb; 526 527 s = spl8(); 528 /* XXX: DISABLE TRANSMITTER */ 529 if (tp->t_state & TS_BUSY) { 530 if ((tp->t_state & TS_TTSTOP) == 0) 531 tp->t_state |= TS_FLUSH; 532 } 533 splx(s); 534 } 535 536 /* 537 * Initialize an async port's MPCC state. 538 */ 539 mpportinit(ms, mp, port) 540 register struct mpsoftc *ms; 541 register struct mpport *mp; 542 int port; 543 { 544 register struct mpevent *ev; 545 register int i; 546 caddr_t ptr; 547 548 mp->mp_on = mp->mp_off = 0; 549 mp->mp_nextrcv = 0; 550 mp->mp_flags = 0; 551 ev = &mp->mp_recvq[0]; 552 for (i = 0; ev < &mp->mp_recvq[MPINSET]; ev++, i++) { 553 ev->ev_status = EVSTATUS_FREE; 554 ev->ev_cmd = 0; 555 ev->ev_opts = 0; 556 ev->ev_error = 0; 557 ev->ev_flags = 0; 558 ev->ev_count = 0; 559 ev->ev_un.hxl = (struct hxmtl *) vtoph(0, &ms->ms_hxl[port]); 560 ev->ev_params = (caddr_t) vtoph(0, &ms->ms_async[port][i]); 561 } 562 ev = &mp->mp_sendq[0]; 563 for (i = 0; ev < &mp->mp_sendq[MPOUTSET]; ev++, i++) { 564 /* init so that L2 can't send any events */ 565 /* to host until open has completed */ 566 ev->ev_status = EVSTATUS_FREE; 567 ev->ev_cmd = 0; 568 ev->ev_error = 0; 569 ev->ev_flags = 0; 570 ev->ev_count = 0; 571 ptr = (caddr_t) &ms->ms_cbuf[port][i][0]; 572 ev->ev_un.rcvblk = (u_char *)vtoph(0, ptr); 573 ev->ev_params = (caddr_t) vtoph(0, ptr); 574 } 575 return (0); 576 } 577 578 /* 579 * Send an event to an mpcc. 580 */ 581 mpcmd(ev, cmd, flags, mb, port) 582 register struct mpevent *ev; 583 struct mblok *mb; 584 { 585 int s; 586 587 s = spl8(); 588 /* move host values to inbound entry */ 589 ev->ev_cmd = cmd; 590 ev->ev_opts = flags; 591 /* show event ready for mpcc */ 592 ev->ev_status = EVSTATUS_GO; 593 mpintmpcc(mb, port); 594 splx(s); 595 } 596 597 /* 598 * Return the next available event entry for the indicated port. 599 */ 600 struct mpevent * 601 mp_getevent(mp, unit) 602 register struct mpport *mp; 603 int unit; 604 { 605 register struct mpevent *ev; 606 int i, s; 607 608 s = spl8(); 609 ev = &mp->mp_recvq[mp->mp_on]; 610 if (ev->ev_status != EVSTATUS_FREE) 611 goto bad; 612 /* 613 * If not a close request, verify one extra 614 * event is available for closing the port. 615 */ 616 if ((mp->mp_flags && MP_PROGRESS) == 0) { 617 if ((i = mp->mp_on + 1) >= MPINSET) 618 i = 0; 619 if (mp->mp_recvq[i].ev_status != EVSTATUS_FREE) 620 goto bad; 621 } 622 /* init inbound fields marking this entry as busy */ 623 ev->ev_error = 0; 624 ev->ev_flags = 0; 625 ev->ev_count = 0; 626 ev->ev_status = EVSTATUS_BUSY; 627 /* adjust pointer to next available inbound entry */ 628 adjptr(mp->mp_on, MPINSET); 629 splx(s); 630 return (ev); 631 bad: 632 splx(s); 633 log(LOG_ERR, "mp%d: port%d, out of events", MPUNIT(unit), MPPORT(unit)); 634 return ((struct mpevent *)0); 635 } 636 637 mpmodem(unit, flag) 638 int unit, flag; 639 { 640 struct mpsoftc *ms = &mp_softc[MPUNIT(unit)]; 641 int port = MPPORT(unit); 642 register struct mpport *mp; 643 register struct mpevent *ev; 644 register struct asyncparam *asp; 645 646 mp = &ms->ms_mb->mb_port[port]; 647 ev = mp_getevent(mp, unit); 648 if (ev == 0) 649 return (ENOBUFS); 650 /* YUCK */ 651 asp = &ms->ms_async[port][mp->mp_on?mp->mp_on-1:MPINSET-1]; 652 if (flag == MMOD_ON) { 653 if (ms->ms_softCAR & (1 << port)) 654 setm(&asp->ap_modem, A_DTR, ASSERT); 655 else 656 setm(&asp->ap_modem, A_DTR, AUTO); 657 seti(&asp->ap_intena, A_DCD); 658 } else { 659 setm(&asp->ap_modem, 0, DROP); 660 seti(&asp->ap_intena, 0); 661 } 662 mpcmd(ev, EVCMD_IOCTL, A_MDMCHG, ms->ms_mb, port); 663 return (0); 664 } 665 666 /* 667 * Set up the modem control structure according to mask. 668 * Each set bit in the mask means assert the corresponding 669 * modem control line, otherwise, it will be dropped. 670 * RTS is special since it can either be asserted, dropped 671 * or put in auto mode for auto modem control. 672 */ 673 static 674 setm(mc, mask, rts) 675 register struct mdmctl *mc; 676 register int mask; 677 { 678 679 mc->mc_rngdsr = (mask & A_RNGDSR) ? ASSERT : DROP; 680 mc->mc_rate = (mask & A_RATE) ? ASSERT : DROP; 681 mc->mc_dcd = (mask & A_DCD) ? ASSERT : DROP; 682 mc->mc_sectx = (mask & A_SECTX) ? ASSERT : DROP; 683 mc->mc_cts = (mask & A_CTS) ? ASSERT : DROP; 684 mc->mc_secrx = (mask & A_SECRX) ? ASSERT : DROP; 685 mc->mc_dtr = (mask & A_DTR) ? ASSERT : DROP; 686 mc->mc_rts = rts; 687 } 688 689 /* 690 * Set up the status change enable field from mask. 691 * When a signal is enabled in this structure and 692 * and a change in state on a corresponding modem 693 * control line occurs, a status change event will 694 * be delivered to the host. 695 */ 696 static 697 seti(mc, mask) 698 register struct mdmctl *mc; 699 register int mask; 700 { 701 702 mc->mc_rngdsr = (mask & A_RNGDSR) ? MDM_ON : MDM_OFF; 703 mc->mc_rate = (mask & A_RATE) ? MDM_ON : MDM_OFF; 704 mc->mc_dcd = (mask & A_DCD) ? MDM_ON : MDM_OFF; 705 mc->mc_sectx = (mask & A_SECTX) ? MDM_ON : MDM_OFF; 706 mc->mc_cts = (mask & A_CTS) ? MDM_ON : MDM_OFF; 707 mc->mc_secrx = (mask & A_SECRX) ? MDM_ON : MDM_OFF; 708 mc->mc_dtr = (mask & A_DTR) ? MDM_ON : MDM_OFF; 709 mc->mc_rts = (mask & A_RTS) ? MDM_ON : MDM_OFF; 710 } 711 712 mpcleanport(mb, port) 713 struct mblok *mb; 714 int port; 715 { 716 register struct mpport *mp; 717 register struct tty *tp; 718 719 mp = &mb->mb_port[port]; 720 if (mp->mp_proto == MPPROTO_ASYNC) { 721 mp->mp_flags = MP_REMBSY; 722 /* flush I/O queues and send hangup signals */ 723 tp = &mp_tty[mb->mb_unit*MPCHUNK+port]; 724 tp->t_state &= ~TS_CARR_ON; 725 ttyflush(tp, FREAD|FWRITE); 726 gsignal(tp->t_pgrp, SIGHUP); 727 gsignal(tp->t_pgrp, SIGKILL); 728 mpclose(tp->t_dev, 0); 729 } 730 } 731 732 mpclean(mb, port) 733 register struct mblok *mb; 734 int port; 735 { 736 register struct mpport *mp; 737 register struct mpevent *ev; 738 register int i; 739 char list[2], *cp; 740 int unit; 741 742 mp = &mb->mb_port[port]; 743 unit = mb->mb_unit; 744 for (i = mp->mp_off; i != mp->mp_on; i = (i+1 % MPINSET)) { 745 ev = &mp->mp_recvq[i]; 746 ev->ev_error = ENXIO; 747 ev->ev_status = EVSTATUS_DONE; 748 } 749 list[0] = port, list[1] = MPPORT_EOL; 750 mpxintr(unit, list); 751 mprintr(unit, list); 752 /* Clear async for port */ 753 mp->mp_proto = MPPROTO_UNUSED; 754 mp->mp_flags = 0; 755 mp->mp_on = 0; 756 mp->mp_off = 0; 757 mp->mp_nextrcv = 0; 758 759 mp_tty[unit*MPCHUNK + port].t_state = 0; 760 for (ev = &mp->mp_sendq[0]; ev < &mp->mp_sendq[MPOUTSET]; ev++) { 761 ev->ev_status = EVSTATUS_FREE; 762 ev->ev_cmd = 0; 763 ev->ev_error = 0; 764 ev->ev_un.rcvblk = 0; 765 ev->ev_params = 0; 766 } 767 for (ev = &mp->mp_recvq[0]; ev < &mp->mp_recvq[MPINSET]; ev++) { 768 ev->ev_status = EVSTATUS_FREE; 769 ev->ev_cmd = 0; 770 ev->ev_error = 0; 771 ev->ev_params = 0; 772 } 773 } 774 775 /* 776 * MPCC interrupt handler. 777 */ 778 mpintr(mpcc) 779 int mpcc; 780 { 781 register struct mblok *mb; 782 register struct his *his; 783 register int i; 784 785 mb = mp_softc[mpcc].ms_mb; 786 if (mb == 0) { 787 printf("mp%d: stray interrupt\n", mpcc); 788 return; 789 } 790 his = &mb->mb_hostint; 791 his->semaphore &= ~MPSEMA_AVAILABLE; 792 /* 793 * Check for events to be processed. 794 */ 795 if (his->proto[MPPROTO_ASYNC].outbdone[0] != MPPORT_EOL) 796 mprintr(mpcc, his->proto[MPPROTO_ASYNC].outbdone); 797 if (his->proto[MPPROTO_ASYNC].inbdone[0] != MPPORT_EOL) 798 mpxintr(mpcc, his->proto[MPPROTO_ASYNC].inbdone); 799 if (mb->mb_harderr || mb->mb_softerr) 800 mperror(mb, mpcc); 801 his->semaphore |= MPSEMA_AVAILABLE; 802 } 803 804 /* 805 * Handler for processing completion of transmitted events. 806 */ 807 mpxintr(unit, list) 808 register char *list; 809 { 810 register struct mpport *mp; 811 register struct mpevent *ev; 812 register struct mblok *mb; 813 register struct tty *tp; 814 register struct asyncparam *ap; 815 struct mpsoftc *ms; 816 int port, i, j; 817 818 ms = &mp_softc[unit]; 819 mb = mp_softc[unit].ms_mb; 820 for (j = 0; j < MPMAXPORT && ((port = *list++) != MPPORT_EOL); j++) { 821 /* 822 * Process each completed entry in the inbound queue. 823 */ 824 mp = &mb->mb_port[port]; 825 tp = &mp_tty[unit*MPCHUNK + port]; 826 #define nextevent(mp) &mp->mp_recvq[mp->mp_off] 827 ev = nextevent(mp); 828 for(; ev->ev_status & EVSTATUS_DONE; ev = nextevent(mp)) { 829 /* YUCK */ 830 ap = &ms->ms_async[port][mp->mp_off]; 831 mppurge(ap, sizeof (*ap)); 832 switch (ev->ev_cmd) { 833 case EVCMD_OPEN: 834 /* 835 * Open completion, start all reads and 836 * assert modem status information. 837 */ 838 for (i = 0; i < MPOUTSET; i++) 839 mp->mp_sendq[i].ev_status = EVSTATUS_GO; 840 (*linesw[tp->t_line].l_modem) 841 (tp, ap->ap_modem.mc_dcd == ASSERT); 842 break; 843 case EVCMD_CLOSE: 844 /* 845 * Close completion, flush all pending 846 * transmissions, free resources, and 847 * cleanup mpcc port state. 848 */ 849 for (i = 0; i < MPOUTSET; i++) { 850 mp->mp_sendq[i].ev_status = 851 EVSTATUS_FREE; 852 mp->mp_sendq[i].ev_un.rcvblk = 0; 853 mp->mp_sendq[i].ev_params = 0; 854 } 855 tp->t_state &= ~TS_CARR_ON; 856 mp->mp_on = mp->mp_off = mp->mp_nextrcv = 0; 857 mp->mp_flags &= ~MP_PROGRESS; 858 mp->mp_proto = MPPROTO_UNUSED; 859 wakeup((caddr_t)&tp->t_canq); /* ??? */ 860 goto done; 861 case EVCMD_IOCTL: 862 /* 863 * Nothing to do, just pitch. 864 */ 865 break; 866 case EVCMD_WRITE: 867 /* 868 * Transmission completed, update tty 869 * state and restart output. 870 */ 871 tp->t_state &= ~TS_BUSY; 872 if (tp->t_state & TS_FLUSH) { 873 tp->t_state &= ~TS_FLUSH; 874 wakeup((caddr_t)&tp->t_state); 875 } else { 876 register int cc = 0, i; 877 struct hxmtl *hxp; 878 879 hxp = &ms->ms_hxl[port]; 880 for(i = 0; i < ev->ev_count; i++) 881 cc += hxp->size[i]; 882 ndflush(&tp->t_outq, cc); 883 } 884 switch (ev->ev_error) { 885 case A_SIZERR: /*# error in xmt data size */ 886 mplog(unit, port, A_XSIZE, 0); 887 break; 888 case A_NXBERR: /*# no more xmt evt buffers */ 889 mplog(unit, port, A_NOXBUF, 0); 890 break; 891 } 892 mpstart(tp); 893 break; 894 default: 895 mplog(unit, port, A_INVCMD, ev->ev_cmd); 896 break; 897 } 898 /* re-init all values in this entry */ 899 ev->ev_cmd = 0; 900 ev->ev_opts = 0; 901 ev->ev_error = 0; 902 ev->ev_flags = 0; 903 ev->ev_count = 0; 904 /* show this entry is available for use */ 905 ev->ev_status = EVSTATUS_FREE; 906 adjptr(mp->mp_off, MPINSET); 907 #undef nextevent 908 } 909 done: 910 ; 911 } 912 } 913 914 /* 915 * Handler for processing received events. 916 */ 917 mprintr(unit, list) 918 char *list; 919 { 920 register struct tty *tp; 921 register struct mpport *mp; 922 register struct mpevent *ev; 923 struct mblok *mb; 924 register int cc; 925 register char *cp; 926 struct mpsoftc *ms; 927 caddr_t ptr; 928 char *rcverr; 929 int port, i; 930 931 ms = &mp_softc[unit]; 932 mb = mp_softc[unit].ms_mb; 933 for (i = 0; i < MPMAXPORT && (port = *list++) != MPPORT_EOL; i++) { 934 tp = &mp_tty[unit*MPCHUNK + port]; 935 mp = &mb->mb_port[port]; 936 ev = &mp->mp_sendq[mp->mp_nextrcv]; 937 while (ev->ev_status & EVSTATUS_DONE) { 938 if (ev->ev_cmd != EVCMD_READ && 939 ev->ev_cmd != EVCMD_STATUS) { 940 mplog(unit, port, "unexpected command", 941 ev->ev_cmd); 942 goto next; 943 } 944 if (ev->ev_cmd == EVCMD_STATUS) { 945 /* 946 * Status change, look for carrier changes. 947 */ 948 if (ev->ev_opts == DCDASRT || 949 ev->ev_opts == DCDDROP) 950 (*linesw[tp->t_line].l_modem) 951 (tp, ev->ev_opts == DCDASRT); 952 else 953 mplog(unit, port, 954 "unexpect status command", 955 ev->ev_opts); 956 goto next; 957 } 958 /* 959 * Process received data. 960 */ 961 if ((tp->t_state & (TS_ISOPEN|TS_WOPEN)) == 0) 962 goto next; 963 cc = ev->ev_count; 964 if (cc == 0) 965 goto next; 966 /* YUCK */ 967 cp = ms->ms_cbuf[port][mp->mp_nextrcv]; 968 mppurge(cp, CBSIZE); 969 while (cc-- > 0) { 970 /* 971 * A null character is inserted, potentially 972 * when a break or framing error occurs. If 973 * we're not in raw mode, substitute the 974 * interrupt character. 975 */ 976 if (*cp == 0 && 977 (ev->ev_error == BRKASRT || 978 ev->ev_error == FRAMERR)) 979 if ((tp->t_flags&RAW) == 0) 980 *cp = tp->t_intrc; 981 (*linesw[tp->t_line].l_rint)(*cp++, tp); 982 } 983 /* setup for next read */ 984 ptr = (caddr_t)&mp_softc[unit].ms_cbuf[port][mp->mp_nextrcv][0]; 985 ev->ev_un.rcvblk = (u_char *)vtoph(0, ptr); 986 ev->ev_params = (caddr_t) vtoph(0, ptr); 987 switch(ev->ev_error) { 988 case RCVDTA: /* Normal (good) rcv data */ 989 /* do not report the following */ 990 /* they are "normal" errors */ 991 case FRAMERR: /* frame error */ 992 case BRKASRT: /* Break condition */ 993 case PARERR: /* parity error */ 994 rcverr = (char *)0; 995 break; 996 case OVRNERR: /* Overrun error */ 997 rcverr = "overrun error"; 998 break; 999 case OVFERR: /* Overflow error */ 1000 rcverr = "overflow error"; 1001 break; 1002 default: 1003 rcverr = "undefined rcv error"; 1004 } 1005 if (rcverr != (char *)0) 1006 mplog(unit, port, rcverr, ev->ev_error); 1007 next: 1008 ev->ev_cmd = 0; 1009 ev->ev_opts = 0; 1010 ev->ev_error = 0; 1011 ev->ev_flags = 0; 1012 ev->ev_status = EVSTATUS_GO; /* start next read */ 1013 adjptr(mp->mp_nextrcv, MPOUTSET); 1014 ev = &mp->mp_sendq[mp->mp_nextrcv]; 1015 } 1016 } 1017 } 1018 1019 /* 1020 * Log an mpcc diagnostic. 1021 */ 1022 mplog(unit, port, cp, flags) 1023 char *cp; 1024 { 1025 1026 if (flags) 1027 log(LOG_ERR, "mp%d: port%d, %s (%d)\n", 1028 unit, port, cp, flags); 1029 else 1030 log(LOG_ERR, "mp%d: port%d, %s\n", unit, port, cp); 1031 } 1032 1033 int MPHOSTINT = 1; 1034 1035 mptimeint(mb) 1036 register struct mblok *mb; 1037 { 1038 1039 mb->mb_mpintcnt = 0; 1040 mb->mb_mpintclk = (caddr_t)0; 1041 *(u_short *)mpinfo[mb->mb_unit]->ui_addr = 2; 1042 } 1043 1044 /* 1045 * Interupt mpcc 1046 */ 1047 mpintmpcc(mb, port) 1048 register struct mblok *mb; 1049 u_short port; 1050 { 1051 1052 mb->mb_intr[port] |= MPSEMA_WORK; 1053 if (++mb->mb_mpintcnt == MPHOSTINT) { 1054 mb->mb_mpintcnt = 0; 1055 *(u_short *)mpinfo[mb->mb_unit]->ui_addr = 2; 1056 if (mb->mb_mpintclk) { 1057 untimeout(mptimeint, mb); 1058 mb->mb_mpintclk = 0; 1059 } 1060 } else { 1061 if (mb->mb_mpintclk == 0) { 1062 timeout(mptimeint, mb, 4); 1063 mb->mb_mpintclk = (caddr_t)1; 1064 } 1065 } 1066 } 1067 1068 static char *mpherrmsg[] = { 1069 "", 1070 "Bus error", /* MPBUSERR */ 1071 "Address error", /* ADDRERR */ 1072 "Undefined ecc interrupt", /* UNDECC */ 1073 "Undefined interrupt", /* UNDINT */ 1074 "Power failure occurred", /* PWRFL */ 1075 "Stray transmit done interrupt", /* NOXENTRY */ 1076 "Two fast timers on one port", /* TWOFTMRS */ 1077 "Interrupt queue full", /* INTQFULL */ 1078 "Interrupt queue ack error", /* INTQERR */ 1079 "Uncorrectable dma parity error", /* CBPERR */ 1080 "32 port ACAP failed power up", /* ACPDEAD */ 1081 }; 1082 #define NHERRS (sizeof (mpherrmsg) / sizeof (mpherrmsg[0])) 1083 1084 mperror(mb, unit) 1085 register struct mblok *mb; 1086 int unit; 1087 { 1088 register char *cp; 1089 register int i; 1090 1091 if (mb->mb_softerr) { 1092 switch (mb->mb_softerr) { 1093 case DMAPERR: /* dma parity error */ 1094 cp = "dma parity error"; 1095 break; 1096 case ECCERR: 1097 cp = "local memory ecc error"; 1098 break; 1099 default: 1100 cp = "unknown error"; 1101 break; 1102 } 1103 log(LOG_ERR, "mp%d: soft error, %s", unit, cp); 1104 mb->mb_softerr = 0; 1105 } 1106 if (mb->mb_harderr) { 1107 if (mb->mb_harderr < NHERRS) 1108 cp = mpherrmsg[mb->mb_harderr]; 1109 else 1110 cp = "unknown error"; 1111 log(LOG_ERR, "mp%d: hard error, %s", unit, cp); 1112 if (mb->mb_status == MP_OPOPEN) { 1113 for (i = 0; i < MPMAXPORT; i++) { 1114 mpcleanport(mb, i); 1115 mb->mb_proto[i] = MPPROTO_UNUSED; 1116 } 1117 } 1118 mb->mb_harderr = 0; 1119 mb->mb_status = 0; 1120 } 1121 } 1122 1123 mppurge(addr, cc) 1124 register caddr_t addr; 1125 register int cc; 1126 { 1127 1128 for (; cc >= 0; addr += NBPG, cc -= NBPG) 1129 mtpr(P1DC, addr); 1130 } 1131 1132 /* 1133 * MPCC Download Pseudo-device. 1134 */ 1135 char mpdlbuf[MPDLBUFSIZE]; 1136 int mpdlbusy; /* interlock on download buffer */ 1137 int mpdlerr; 1138 1139 mpdlopen(dev) 1140 dev_t dev; 1141 { 1142 int unit, mpu; 1143 struct vba_device *vi; 1144 1145 unit = minor(dev); 1146 mpu = MPUNIT(unit); 1147 if (mpu >= NMP || (vi = mpinfo[mpu]) == 0 || vi->ui_alive == 0) 1148 return (ENODEV); 1149 return (0); 1150 } 1151 1152 mpdlwrite(dev, uio) 1153 dev_t dev; 1154 struct uio *uio; 1155 { 1156 register struct mpsoftc *ms = &mp_softc[MPUNIT(minor(dev))]; 1157 register struct mpdl *dl; 1158 int error; 1159 1160 if (ms->ms_mb == 0 || ms->ms_mb->mb_status != MP_DLOPEN) 1161 return (EFAULT); 1162 dl = &ms->ms_mb->mb_dl; 1163 dl->mpdl_count = uio->uio_iov->iov_len; 1164 dl->mpdl_data = (caddr_t) vtoph((struct proc *)0, mpdlbuf); 1165 if (error = uiomove(mpdlbuf, dl->mpdl_count, UIO_WRITE, uio)) 1166 return (error); 1167 uio->uio_resid -= dl->mpdl_count; /* set up return from write */ 1168 dl->mpdl_cmd = MPDLCMD_NORMAL; 1169 error = mpdlwait(dl); 1170 return (error); 1171 } 1172 1173 mpdlclose(dev) 1174 dev_t dev; 1175 { 1176 register struct mblok *mb = mp_softc[MPUNIT(minor(dev))].ms_mb; 1177 int ret = 0; 1178 1179 if (mb == 0 || mb->mb_status != MP_DLDONE) { 1180 mpbogus.status = 0; 1181 if (mpbogus.mb == mpbogus.mbloks[MPUNIT(minor(dev))]) 1182 mpdlbusy--; 1183 return (EEXIST); 1184 } 1185 mb->mb_status = MP_OPOPEN; 1186 mpbogus.status = 0; 1187 /* set to dead, for board handshake */ 1188 mb->mb_hostint.imok = MPIMOK_DEAD; 1189 return (0); 1190 } 1191 1192 mpreset(dev) 1193 dev_t dev; 1194 { 1195 /* XXX */ 1196 } 1197 1198 int mpdltimeout(); 1199 1200 mpdlioctl(dev, cmd, data, flag) 1201 dev_t dev; 1202 caddr_t data; 1203 { 1204 register struct mblok *mb; 1205 register struct mpdl *dl; 1206 int unit, error, s, i, j; 1207 1208 mb = mp_softc[unit=MPUNIT(minor(dev))].ms_mb; 1209 if (mb == 0) 1210 return (EEXIST); 1211 dl = &mb->mb_dl; 1212 error = 0; 1213 switch (cmd) { 1214 case MPIOPORTMAP: 1215 bcopy(data, (caddr_t)mb->mb_proto, sizeof (mb->mb_proto)); 1216 break; 1217 case MPIOHILO: 1218 bcopy(data, (caddr_t)&mb->mb_hiport, 2*(sizeof(mb->mb_hiport))); 1219 break; 1220 case MPIOENDDL: 1221 dl->mpdl_count = 0; 1222 dl->mpdl_data = 0; 1223 dl->mpdl_cmd = MPIOENDDL&IOCPARM_MASK; 1224 error = mpdlwait(dl); 1225 mpccinit(unit); 1226 mb->mb_status = MP_DLDONE; 1227 mpdlbusy--; 1228 break; 1229 case MPIOENDCODE: 1230 dl->mpdl_count = 0; 1231 dl->mpdl_data = 0; 1232 dl->mpdl_cmd = MPIOENDCODE&IOCPARM_MASK; 1233 error = mpdlwait(dl); 1234 break; 1235 case MPIOASYNCNF: 1236 bcopy(data, mpdlbuf, sizeof (struct abdcf)); 1237 dl->mpdl_data = (caddr_t) vtoph((struct proc *)0, mpdlbuf); 1238 dl->mpdl_count = sizeof (struct abdcf); 1239 dl->mpdl_cmd = MPIOASYNCNF&IOCPARM_MASK; 1240 error = mpdlwait(dl); 1241 break; 1242 case MPIOSTARTDL: 1243 while (mpdlbusy) 1244 sleep((caddr_t)&mpdlbusy, PZERO+1); 1245 mpdlbusy++; 1246 /* initialize the downloading interface */ 1247 mpbogus.magic = MPMAGIC; 1248 mpbogus.mb = mpbogus.mbloks[unit]; 1249 mpbogus.status = 1; 1250 dl->mpdl_status = EVSTATUS_FREE; 1251 dl->mpdl_count = 0; 1252 dl->mpdl_cmd = 0; 1253 dl->mpdl_data = (char *) 0; 1254 mpdlerr = 0; 1255 mb->mb_magic = MPMAGIC; 1256 mb->mb_ivec = mp_softc[unit].ms_ivec+1; /* download vector */ 1257 mb->mb_status = MP_DLPEND; 1258 mb->mb_diagswitch[0] = 'A'; 1259 mb->mb_diagswitch[1] = 'P'; 1260 s = spl8(); 1261 *(u_short *)mpinfo[unit]->ui_addr = 2; 1262 timeout(mpdltimeout, mb, 30*hz); /* approx 15 seconds */ 1263 sleep((caddr_t)&mb->mb_status, PZERO+1); 1264 splx(s); 1265 if (mb->mb_status == MP_DLOPEN) { 1266 untimeout(mpdltimeout, mb); 1267 } else if (mb->mb_status == MP_DLTIME) { 1268 mpbogus.status = 0; 1269 error = ETIMEDOUT; 1270 } else { 1271 mpbogus.status = 0; 1272 error = ENXIO; 1273 log(LOG_ERR, "mp%d: start download: unknown status %x", 1274 unit, mb->mb_status); 1275 } 1276 bzero(mb->mb_port, sizeof (mb->mb_port)); 1277 break; 1278 case MPIORESETBOARD: 1279 s = spl8(); 1280 if (mb->mb_imokclk) 1281 mb->mb_imokclk = 0; 1282 *(u_short *)mpinfo[unit]->ui_addr = 0x100; 1283 if (mb->mb_status == MP_DLOPEN || mb->mb_status == MP_DLDONE) { 1284 mpdlerr = MP_DLERROR; 1285 dl->mpdl_status = EVSTATUS_FREE; 1286 wakeup((caddr_t)&dl->mpdl_status); 1287 mpbogus.status = 0; 1288 } 1289 for (i = 0; i < MPMAXPORT; i++) { 1290 if (mb->mb_harderr || mb->mb_softerr) 1291 mperror(mb, i); 1292 mpcleanport(mb, i); 1293 mb->mb_proto[i] = MPPROTO_UNUSED; 1294 } 1295 mb->mb_status = 0; 1296 splx(s); 1297 break; 1298 default: 1299 error = EINVAL; 1300 break; 1301 } 1302 return (error); 1303 } 1304 1305 mpccinit(unit) 1306 int unit; 1307 { 1308 register struct mblok *mb = mp_softc[unit].ms_mb; 1309 register struct his *his; 1310 register int i, j; 1311 1312 mb->mb_status = MP_DLDONE; 1313 mb->mb_ivec = mp_softc[unit].ms_ivec; 1314 mb->mb_magic = MPMAGIC; 1315 /* Init host interface structure */ 1316 his = &mb->mb_hostint; 1317 his->semaphore = MPSEMA_AVAILABLE; 1318 for (i = 0; i < NMPPROTO; i++) 1319 for (j = 0; j < MPMAXPORT; j++) { 1320 his->proto[i].inbdone[j] = MPPORT_EOL; 1321 his->proto[i].outbdone[j] = MPPORT_EOL; 1322 } 1323 mb->mb_unit = unit; 1324 } 1325 1326 mpdlintr(mpcc) 1327 int mpcc; 1328 { 1329 register struct mblok *mb; 1330 register struct mpdl *dl; 1331 1332 mb = mp_softc[mpcc].ms_mb; 1333 if (mb == 0) { 1334 printf("mp%d: stray download interrupt\n", mpcc); 1335 return; 1336 } 1337 dl = &mb->mb_dl; 1338 switch (mb->mb_status) { 1339 case MP_DLOPEN: 1340 if (dl->mpdl_status != EVSTATUS_DONE) 1341 mpdlerr = MP_DLERROR; 1342 dl->mpdl_status = EVSTATUS_FREE; 1343 wakeup((caddr_t)&dl->mpdl_status); 1344 return; 1345 case MP_DLPEND: 1346 mb->mb_status = MP_DLOPEN; 1347 wakeup(&mb->mb_status); 1348 /* fall thru... */ 1349 case MP_DLTIME: 1350 return; 1351 case MP_OPOPEN: 1352 if (mb->mb_imokclk) 1353 mb->mb_imokclk = 0; 1354 mb->mb_nointcnt = 0; /* reset no interrupt count */ 1355 mb->mb_hostint.imok = MPIMOK_DEAD; 1356 mb->mb_imokclk = (caddr_t)1; 1357 break; 1358 default: 1359 log(LOG_ERR, "mp%d: mpdlintr, status %x\n", 1360 mpcc, mb->mb_status); 1361 break; 1362 } 1363 } 1364 1365 mpdltimeout(mp) 1366 struct mblok *mp; 1367 { 1368 1369 mp->mb_status = MP_DLTIME; 1370 wakeup((caddr_t)&mp->mb_status); 1371 } 1372 1373 /* 1374 * Wait for a transfer to complete or a timeout to occur. 1375 */ 1376 mpdlwait(dl) 1377 register struct mpdl *dl; 1378 { 1379 int s, error = 0; 1380 1381 s = spl8(); 1382 dl->mpdl_status = EVSTATUS_GO; 1383 while (dl->mpdl_status != EVSTATUS_FREE) { 1384 sleep((caddr_t)&dl->mpdl_status, PZERO+1); 1385 if (mpdlerr == MP_DLERROR) 1386 error = EIO; 1387 } 1388 splx(s); 1389 return (error); 1390 } 1391 #endif 1392