1 /* mp.c 1.4 88/04/14 */ 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 = ((tp->t_flags & RAW) ? MPA_DIS : MPA_ENA); 369 asp->ap_xany = ((tp->t_flags & DECCTQ) ? MPA_DIS : MPA_ENA); 370 #ifdef notnow 371 if (tp->t_flags & (RAW|LITOUT|PASS8)) { 372 #endif 373 asp->ap_data = MPCHAR_8; 374 asp->ap_parity = MPPAR_NONE; 375 #ifdef notnow 376 } else { 377 asp->ap_data = MPCHAR_7; 378 if ((tp->t_flags & (EVENP|ODDP)) == ODDP) 379 asp->ap_parity = MPPAR_ODD; 380 else 381 asp->ap_parity = MPPAR_EVEN; 382 } 383 #endif 384 if (tp->t_ospeed == B110) 385 asp->ap_stop = MPSTOP_2; 386 else 387 asp->ap_stop = MPSTOP_1; 388 if (tp->t_ospeed == EXTA || tp->t_ospeed == EXTB) 389 asp->ap_baud = M19200; 390 else 391 asp->ap_baud = tp->t_ospeed; 392 asp->ap_loop = MPA_DIS; /* disable loopback */ 393 asp->ap_rtimer = A_RCVTIM; /* default receive timer */ 394 if (ms->ms_softCAR & (1<<port)) 395 setm(&asp->ap_modem, A_DTR, ASSERT); 396 else 397 setm(&asp->ap_modem, A_DTR, AUTO); 398 seti(&asp->ap_intena, A_DCD); 399 return (ev); 400 } 401 402 mpstart(tp) 403 register struct tty *tp; 404 { 405 register struct mpevent *ev; 406 register struct mpport *mp; 407 struct mblok *mb; 408 struct mpsoftc *ms; 409 int port, unit, xcnt, n, s, i; 410 struct hxmtl *hxp; 411 struct clist outq; 412 413 s = spl8(); 414 unit = minor(tp->t_dev); 415 ms = &mp_softc[MPUNIT(unit)]; 416 mb = ms->ms_mb; 417 port = MPPORT(unit); 418 mp = &mb->mb_port[port]; 419 hxp = &ms->ms_hxl[port]; 420 xcnt = 0; 421 outq = tp->t_outq; 422 for (i = 0; i < MPXMIT; i++) { 423 if (tp->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP)) 424 break; 425 if (outq.c_cc <= TTLOWAT(tp)) { 426 if (tp->t_state & TS_ASLEEP) { 427 tp->t_state &= ~TS_ASLEEP; 428 wakeup((caddr_t)&tp->t_outq); 429 } 430 if (tp->t_wsel) { 431 selwakeup(tp->t_wsel, tp->t_state & TS_WCOLL); 432 tp->t_wsel = 0; 433 tp->t_state &= ~TS_WCOLL; 434 } 435 } 436 if (outq.c_cc == 0) 437 break; 438 /* 439 * If we're not currently busy outputting, 440 * and there is data to be output, set up 441 * port transmit structure to send to mpcc. 442 */ 443 if (tp->t_flags & (RAW|LITOUT)) 444 n = ndqb(&outq, 0); 445 else { 446 n = ndqb(&outq, 0200); 447 if (n == 0) { 448 n = getc(&outq); 449 timeout(ttrstrt, (caddr_t)tp, (n&0177)+6); 450 tp->t_state |= TS_TIMEOUT; 451 break; 452 } 453 } 454 hxp->dblock[i] = (caddr_t)vtoph(0, (int)outq.c_cf); 455 hxp->size[i] = n; 456 xcnt++; /* count of xmts to send */ 457 ndadvance(&outq, n); 458 } 459 /* 460 * If data to send, poke mpcc. 461 */ 462 if (xcnt) { 463 ev = mp_getevent(mp, unit); 464 if (ev == 0) { 465 tp->t_state &= ~(TS_BUSY|TS_TIMEOUT); 466 } else { 467 tp->t_state |= TS_BUSY; 468 ev->ev_count = xcnt; 469 mpcmd(ev, EVCMD_WRITE, 0, mb, MPPORT(unit)); 470 } 471 } 472 splx(s); 473 } 474 475 /* 476 * Advance cc bytes from q but don't free memory. 477 */ 478 ndadvance(q, cc) 479 register struct clist *q; 480 register cc; 481 { 482 register struct cblock *bp; 483 char *end; 484 int rem, s; 485 486 s = spltty(); 487 if (q->c_cc <= 0) 488 goto out; 489 while (cc>0 && q->c_cc) { 490 bp = (struct cblock *)((int)q->c_cf & ~CROUND); 491 if ((int)bp == (((int)q->c_cl-1) & ~CROUND)) { 492 end = q->c_cl; 493 } else { 494 end = (char *)((int)bp + sizeof (struct cblock)); 495 } 496 rem = end - q->c_cf; 497 if (cc >= rem) { 498 cc -= rem; 499 q->c_cc -= rem; 500 q->c_cf = bp->c_next->c_info; 501 } else { 502 q->c_cc -= cc; 503 q->c_cf += cc; 504 break; 505 } 506 } 507 if (q->c_cc <= 0) { 508 q->c_cf = q->c_cl = NULL; 509 q->c_cc = 0; 510 } 511 out: 512 splx(s); 513 } 514 515 /* 516 * Stop output on a line, e.g. for ^S/^Q or output flush. 517 */ 518 mpstop(tp, rw) 519 register struct tty *tp; 520 int rw; 521 { 522 int s, port; 523 struct mpevent *ev; 524 struct mblok *mb; 525 526 s = spl8(); 527 /* XXX: DISABLE TRANSMITTER */ 528 if (tp->t_state & TS_BUSY) { 529 if ((tp->t_state & TS_TTSTOP) == 0) 530 tp->t_state |= TS_FLUSH; 531 } 532 splx(s); 533 } 534 535 /* 536 * Initialize an async port's MPCC state. 537 */ 538 mpportinit(ms, mp, port) 539 register struct mpsoftc *ms; 540 register struct mpport *mp; 541 int port; 542 { 543 register struct mpevent *ev; 544 register int i; 545 caddr_t ptr; 546 547 mp->mp_on = mp->mp_off = 0; 548 mp->mp_nextrcv = 0; 549 mp->mp_flags = 0; 550 ev = &mp->mp_recvq[0]; 551 for (i = 0; ev < &mp->mp_recvq[MPINSET]; ev++, i++) { 552 ev->ev_status = EVSTATUS_FREE; 553 ev->ev_cmd = 0; 554 ev->ev_opts = 0; 555 ev->ev_error = 0; 556 ev->ev_flags = 0; 557 ev->ev_count = 0; 558 ev->ev_un.hxl = (struct hxmtl *) vtoph(0, &ms->ms_hxl[port]); 559 ev->ev_params = (caddr_t) vtoph(0, &ms->ms_async[port][i]); 560 } 561 ev = &mp->mp_sendq[0]; 562 for (i = 0; ev < &mp->mp_sendq[MPOUTSET]; ev++, i++) { 563 /* init so that L2 can't send any events */ 564 /* to host until open has completed */ 565 ev->ev_status = EVSTATUS_FREE; 566 ev->ev_cmd = 0; 567 ev->ev_error = 0; 568 ev->ev_flags = 0; 569 ev->ev_count = 0; 570 ptr = (caddr_t) &ms->ms_cbuf[port][i][0]; 571 ev->ev_un.rcvblk = (u_char *)vtoph(0, ptr); 572 ev->ev_params = (caddr_t) vtoph(0, ptr); 573 } 574 return (0); 575 } 576 577 /* 578 * Send an event to an mpcc. 579 */ 580 mpcmd(ev, cmd, flags, mb, port) 581 register struct mpevent *ev; 582 struct mblok *mb; 583 { 584 int s; 585 586 s = spl8(); 587 /* move host values to inbound entry */ 588 ev->ev_cmd = cmd; 589 ev->ev_opts = flags; 590 /* show event ready for mpcc */ 591 ev->ev_status = EVSTATUS_GO; 592 mpintmpcc(mb, port); 593 splx(s); 594 } 595 596 /* 597 * Return the next available event entry for the indicated port. 598 */ 599 struct mpevent * 600 mp_getevent(mp, unit) 601 register struct mpport *mp; 602 int unit; 603 { 604 register struct mpevent *ev; 605 int i, s; 606 607 s = spl8(); 608 ev = &mp->mp_recvq[mp->mp_on]; 609 if (ev->ev_status != EVSTATUS_FREE) 610 goto bad; 611 /* 612 * If not a close request, verify one extra 613 * event is available for closing the port. 614 */ 615 if ((mp->mp_flags && MP_PROGRESS) == 0) { 616 if ((i = mp->mp_on + 1) >= MPINSET) 617 i = 0; 618 if (mp->mp_recvq[i].ev_status != EVSTATUS_FREE) 619 goto bad; 620 } 621 /* init inbound fields marking this entry as busy */ 622 ev->ev_error = 0; 623 ev->ev_flags = 0; 624 ev->ev_count = 0; 625 ev->ev_status = EVSTATUS_BUSY; 626 /* adjust pointer to next available inbound entry */ 627 adjptr(mp->mp_on, MPINSET); 628 splx(s); 629 return (ev); 630 bad: 631 splx(s); 632 log(LOG_ERR, "mp%d: port%d, out of events", MPUNIT(unit), MPPORT(unit)); 633 return ((struct mpevent *)0); 634 } 635 636 mpmodem(unit, flag) 637 int unit, flag; 638 { 639 struct mpsoftc *ms = &mp_softc[MPUNIT(unit)]; 640 int port = MPPORT(unit); 641 register struct mpport *mp; 642 register struct mpevent *ev; 643 register struct asyncparam *asp; 644 645 mp = &ms->ms_mb->mb_port[port]; 646 ev = mp_getevent(mp, unit); 647 if (ev == 0) 648 return (ENOBUFS); 649 /* YUCK */ 650 asp = &ms->ms_async[port][mp->mp_on?mp->mp_on-1:MPINSET-1]; 651 if (flag == MMOD_ON) { 652 if (ms->ms_softCAR & (1 << port)) 653 setm(&asp->ap_modem, A_DTR, ASSERT); 654 else 655 setm(&asp->ap_modem, A_DTR, AUTO); 656 seti(&asp->ap_intena, A_DCD); 657 } else { 658 setm(&asp->ap_modem, 0, DROP); 659 seti(&asp->ap_intena, 0); 660 } 661 mpcmd(ev, EVCMD_IOCTL, A_MDMCHG, ms->ms_mb, port); 662 return (0); 663 } 664 665 /* 666 * Set up the modem control structure according to mask. 667 * Each set bit in the mask means assert the corresponding 668 * modem control line, otherwise, it will be dropped. 669 * RTS is special since it can either be asserted, dropped 670 * or put in auto mode for auto modem control. 671 */ 672 static 673 setm(mc, mask, rts) 674 register struct mdmctl *mc; 675 register int mask; 676 { 677 678 mc->mc_rngdsr = (mask & A_RNGDSR) ? ASSERT : DROP; 679 mc->mc_rate = (mask & A_RATE) ? ASSERT : DROP; 680 mc->mc_dcd = (mask & A_DCD) ? ASSERT : DROP; 681 mc->mc_sectx = (mask & A_SECTX) ? ASSERT : DROP; 682 mc->mc_cts = (mask & A_CTS) ? ASSERT : DROP; 683 mc->mc_secrx = (mask & A_SECRX) ? ASSERT : DROP; 684 mc->mc_dtr = (mask & A_DTR) ? ASSERT : DROP; 685 mc->mc_rts = rts; 686 } 687 688 /* 689 * Set up the status change enable field from mask. 690 * When a signal is enabled in this structure and 691 * and a change in state on a corresponding modem 692 * control line occurs, a status change event will 693 * be delivered to the host. 694 */ 695 static 696 seti(mc, mask) 697 register struct mdmctl *mc; 698 register int mask; 699 { 700 701 mc->mc_rngdsr = (mask & A_RNGDSR) ? MDM_ON : MDM_OFF; 702 mc->mc_rate = (mask & A_RATE) ? MDM_ON : MDM_OFF; 703 mc->mc_dcd = (mask & A_DCD) ? MDM_ON : MDM_OFF; 704 mc->mc_sectx = (mask & A_SECTX) ? MDM_ON : MDM_OFF; 705 mc->mc_cts = (mask & A_CTS) ? MDM_ON : MDM_OFF; 706 mc->mc_secrx = (mask & A_SECRX) ? MDM_ON : MDM_OFF; 707 mc->mc_dtr = (mask & A_DTR) ? MDM_ON : MDM_OFF; 708 mc->mc_rts = (mask & A_RTS) ? MDM_ON : MDM_OFF; 709 } 710 711 mpcleanport(mb, port) 712 struct mblok *mb; 713 int port; 714 { 715 register struct mpport *mp; 716 register struct tty *tp; 717 718 mp = &mb->mb_port[port]; 719 if (mp->mp_proto == MPPROTO_ASYNC) { 720 mp->mp_flags = MP_REMBSY; 721 /* flush I/O queues and send hangup signals */ 722 tp = &mp_tty[mb->mb_unit*MPCHUNK+port]; 723 tp->t_state &= ~TS_CARR_ON; 724 ttyflush(tp, FREAD|FWRITE); 725 gsignal(tp->t_pgrp, SIGHUP); 726 gsignal(tp->t_pgrp, SIGKILL); 727 mpclose(tp->t_dev, 0); 728 } 729 } 730 731 mpclean(mb, port) 732 register struct mblok *mb; 733 int port; 734 { 735 register struct mpport *mp; 736 register struct mpevent *ev; 737 register int i; 738 char list[2], *cp; 739 int unit; 740 741 mp = &mb->mb_port[port]; 742 unit = mb->mb_unit; 743 for (i = mp->mp_off; i != mp->mp_on; i = (i+1 % MPINSET)) { 744 ev = &mp->mp_recvq[i]; 745 ev->ev_error = ENXIO; 746 ev->ev_status = EVSTATUS_DONE; 747 } 748 list[0] = port, list[1] = MPPORT_EOL; 749 mpxintr(unit, list); 750 mprintr(unit, list); 751 /* Clear async for port */ 752 mp->mp_proto = MPPROTO_UNUSED; 753 mp->mp_flags = 0; 754 mp->mp_on = 0; 755 mp->mp_off = 0; 756 mp->mp_nextrcv = 0; 757 758 mp_tty[unit*MPCHUNK + port].t_state = 0; 759 for (ev = &mp->mp_sendq[0]; ev < &mp->mp_sendq[MPOUTSET]; ev++) { 760 ev->ev_status = EVSTATUS_FREE; 761 ev->ev_cmd = 0; 762 ev->ev_error = 0; 763 ev->ev_un.rcvblk = 0; 764 ev->ev_params = 0; 765 } 766 for (ev = &mp->mp_recvq[0]; ev < &mp->mp_recvq[MPINSET]; ev++) { 767 ev->ev_status = EVSTATUS_FREE; 768 ev->ev_cmd = 0; 769 ev->ev_error = 0; 770 ev->ev_params = 0; 771 } 772 } 773 774 /* 775 * MPCC interrupt handler. 776 */ 777 mpintr(mpcc) 778 int mpcc; 779 { 780 register struct mblok *mb; 781 register struct his *his; 782 register int i; 783 784 mb = mp_softc[mpcc].ms_mb; 785 if (mb == 0) { 786 printf("mp%d: stray interrupt\n", mpcc); 787 return; 788 } 789 his = &mb->mb_hostint; 790 his->semaphore &= ~MPSEMA_AVAILABLE; 791 /* 792 * Check for events to be processed. 793 */ 794 if (his->proto[MPPROTO_ASYNC].outbdone[0] != MPPORT_EOL) 795 mprintr(mpcc, his->proto[MPPROTO_ASYNC].outbdone); 796 if (his->proto[MPPROTO_ASYNC].inbdone[0] != MPPORT_EOL) 797 mpxintr(mpcc, his->proto[MPPROTO_ASYNC].inbdone); 798 if (mb->mb_harderr || mb->mb_softerr) 799 mperror(mb, mpcc); 800 his->semaphore |= MPSEMA_AVAILABLE; 801 } 802 803 /* 804 * Handler for processing completion of transmitted events. 805 */ 806 mpxintr(unit, list) 807 register char *list; 808 { 809 register struct mpport *mp; 810 register struct mpevent *ev; 811 register struct mblok *mb; 812 register struct tty *tp; 813 register struct asyncparam *ap; 814 struct mpsoftc *ms; 815 int port, i, j; 816 817 ms = &mp_softc[unit]; 818 mb = mp_softc[unit].ms_mb; 819 for (j = 0; j < MPMAXPORT && ((port = *list++) != MPPORT_EOL); j++) { 820 /* 821 * Process each completed entry in the inbound queue. 822 */ 823 mp = &mb->mb_port[port]; 824 tp = &mp_tty[unit*MPCHUNK + port]; 825 #define nextevent(mp) &mp->mp_recvq[mp->mp_off] 826 ev = nextevent(mp); 827 for(; ev->ev_status & EVSTATUS_DONE; ev = nextevent(mp)) { 828 /* YUCK */ 829 ap = &ms->ms_async[port][mp->mp_off]; 830 mppurge(ap, sizeof (*ap)); 831 switch (ev->ev_cmd) { 832 case EVCMD_OPEN: 833 /* 834 * Open completion, start all reads and 835 * assert modem status information. 836 */ 837 for (i = 0; i < MPOUTSET; i++) 838 mp->mp_sendq[i].ev_status = EVSTATUS_GO; 839 (*linesw[tp->t_line].l_modem) 840 (tp, ap->ap_modem.mc_dcd == ASSERT); 841 break; 842 case EVCMD_CLOSE: 843 /* 844 * Close completion, flush all pending 845 * transmissions, free resources, and 846 * cleanup mpcc port state. 847 */ 848 for (i = 0; i < MPOUTSET; i++) { 849 mp->mp_sendq[i].ev_status = 850 EVSTATUS_FREE; 851 mp->mp_sendq[i].ev_un.rcvblk = 0; 852 mp->mp_sendq[i].ev_params = 0; 853 } 854 tp->t_state &= ~TS_CARR_ON; 855 mp->mp_on = mp->mp_off = mp->mp_nextrcv = 0; 856 mp->mp_flags &= ~MP_PROGRESS; 857 mp->mp_proto = MPPROTO_UNUSED; 858 wakeup((caddr_t)&tp->t_canq); /* ??? */ 859 goto done; 860 case EVCMD_IOCTL: 861 /* 862 * Nothing to do, just pitch. 863 */ 864 break; 865 case EVCMD_WRITE: 866 /* 867 * Transmission completed, update tty 868 * state and restart output. 869 */ 870 tp->t_state &= ~TS_BUSY; 871 if (tp->t_state & TS_FLUSH) { 872 tp->t_state &= ~TS_FLUSH; 873 wakeup((caddr_t)&tp->t_state); 874 } else { 875 register int cc = 0, i; 876 struct hxmtl *hxp; 877 878 hxp = &ms->ms_hxl[port]; 879 for(i = 0; i < ev->ev_count; i++) 880 cc += hxp->size[i]; 881 ndflush(&tp->t_outq, cc); 882 } 883 switch (ev->ev_error) { 884 case A_SIZERR: /*# error in xmt data size */ 885 mplog(unit, port, A_XSIZE, 0); 886 break; 887 case A_NXBERR: /*# no more xmt evt buffers */ 888 mplog(unit, port, A_NOXBUF, 0); 889 break; 890 } 891 mpstart(tp); 892 break; 893 default: 894 mplog(unit, port, A_INVCMD, ev->ev_cmd); 895 break; 896 } 897 /* re-init all values in this entry */ 898 ev->ev_cmd = 0; 899 ev->ev_opts = 0; 900 ev->ev_error = 0; 901 ev->ev_flags = 0; 902 ev->ev_count = 0; 903 /* show this entry is available for use */ 904 ev->ev_status = EVSTATUS_FREE; 905 adjptr(mp->mp_off, MPINSET); 906 #undef nextevent 907 } 908 done: 909 ; 910 } 911 } 912 913 /* 914 * Handler for processing received events. 915 */ 916 mprintr(unit, list) 917 char *list; 918 { 919 register struct tty *tp; 920 register struct mpport *mp; 921 register struct mpevent *ev; 922 struct mblok *mb; 923 register int cc; 924 register char *cp; 925 struct mpsoftc *ms; 926 caddr_t ptr; 927 char *rcverr; 928 int port, i; 929 930 ms = &mp_softc[unit]; 931 mb = mp_softc[unit].ms_mb; 932 for (i = 0; i < MPMAXPORT && (port = *list++) != MPPORT_EOL; i++) { 933 tp = &mp_tty[unit*MPCHUNK + port]; 934 mp = &mb->mb_port[port]; 935 ev = &mp->mp_sendq[mp->mp_nextrcv]; 936 while (ev->ev_status & EVSTATUS_DONE) { 937 if (ev->ev_cmd != EVCMD_READ && 938 ev->ev_cmd != EVCMD_STATUS) { 939 mplog(unit, port, "unexpected command", 940 ev->ev_cmd); 941 goto next; 942 } 943 if (ev->ev_cmd == EVCMD_STATUS) { 944 /* 945 * Status change, look for carrier changes. 946 */ 947 if (ev->ev_opts == DCDASRT || 948 ev->ev_opts == DCDDROP) 949 (*linesw[tp->t_line].l_modem) 950 (tp, ev->ev_opts == DCDASRT); 951 else 952 mplog(unit, port, 953 "unexpect status command", 954 ev->ev_opts); 955 goto next; 956 } 957 /* 958 * Process received data. 959 */ 960 if ((tp->t_state & (TS_ISOPEN|TS_WOPEN)) == 0) 961 goto next; 962 cc = ev->ev_count; 963 if (cc == 0) 964 goto next; 965 /* YUCK */ 966 cp = ms->ms_cbuf[port][mp->mp_nextrcv]; 967 mppurge(cp, CBSIZE); 968 while (cc-- > 0) { 969 /* 970 * A null character is inserted, potentially 971 * when a break or framing error occurs. If 972 * we're not in raw mode, substitute the 973 * interrupt character. 974 */ 975 if (*cp == 0 && 976 (ev->ev_error == BRKASRT || 977 ev->ev_error == FRAMERR)) 978 if ((tp->t_flags&RAW) == 0) 979 *cp = tp->t_intrc; 980 (*linesw[tp->t_line].l_rint)(*cp++, tp); 981 } 982 /* setup for next read */ 983 ptr = (caddr_t)&mp_softc[unit].ms_cbuf[port][mp->mp_nextrcv][0]; 984 ev->ev_un.rcvblk = (u_char *)vtoph(0, ptr); 985 ev->ev_params = (caddr_t) vtoph(0, ptr); 986 switch(ev->ev_error) { 987 case RCVDTA: /* Normal (good) rcv data */ 988 /* do not report the following */ 989 /* they are "normal" errors */ 990 case FRAMERR: /* frame error */ 991 case BRKASRT: /* Break condition */ 992 case PARERR: /* parity error */ 993 rcverr = (char *)0; 994 break; 995 case OVRNERR: /* Overrun error */ 996 rcverr = "overrun error"; 997 break; 998 case OVFERR: /* Overflow error */ 999 rcverr = "overflow error"; 1000 break; 1001 default: 1002 rcverr = "undefined rcv error"; 1003 } 1004 if (rcverr != (char *)0) 1005 mplog(unit, port, rcverr, ev->ev_error); 1006 next: 1007 ev->ev_cmd = 0; 1008 ev->ev_opts = 0; 1009 ev->ev_error = 0; 1010 ev->ev_flags = 0; 1011 ev->ev_status = EVSTATUS_GO; /* start next read */ 1012 adjptr(mp->mp_nextrcv, MPOUTSET); 1013 ev = &mp->mp_sendq[mp->mp_nextrcv]; 1014 } 1015 } 1016 } 1017 1018 /* 1019 * Log an mpcc diagnostic. 1020 */ 1021 mplog(unit, port, cp, flags) 1022 char *cp; 1023 { 1024 1025 if (flags) 1026 log(LOG_ERR, "mp%d: port%d, %s (%d)\n", 1027 unit, port, cp, flags); 1028 else 1029 log(LOG_ERR, "mp%d: port%d, %s\n", unit, port, cp); 1030 } 1031 1032 int MPHOSTINT = 1; 1033 1034 mptimeint(mb) 1035 register struct mblok *mb; 1036 { 1037 1038 mb->mb_mpintcnt = 0; 1039 mb->mb_mpintclk = (caddr_t)0; 1040 *(u_short *)mpinfo[mb->mb_unit]->ui_addr = 2; 1041 } 1042 1043 /* 1044 * Interupt mpcc 1045 */ 1046 mpintmpcc(mb, port) 1047 register struct mblok *mb; 1048 u_short port; 1049 { 1050 1051 mb->mb_intr[port] |= MPSEMA_WORK; 1052 if (++mb->mb_mpintcnt == MPHOSTINT) { 1053 mb->mb_mpintcnt = 0; 1054 *(u_short *)mpinfo[mb->mb_unit]->ui_addr = 2; 1055 if (mb->mb_mpintclk) { 1056 untimeout(mptimeint, mb); 1057 mb->mb_mpintclk = 0; 1058 } 1059 } else { 1060 if (mb->mb_mpintclk == 0) { 1061 timeout(mptimeint, mb, 4); 1062 mb->mb_mpintclk = (caddr_t)1; 1063 } 1064 } 1065 } 1066 1067 static char *mpherrmsg[] = { 1068 "", 1069 "Bus error", /* MPBUSERR */ 1070 "Address error", /* ADDRERR */ 1071 "Undefined ecc interrupt", /* UNDECC */ 1072 "Undefined interrupt", /* UNDINT */ 1073 "Power failure occurred", /* PWRFL */ 1074 "Stray transmit done interrupt", /* NOXENTRY */ 1075 "Two fast timers on one port", /* TWOFTMRS */ 1076 "Interrupt queue full", /* INTQFULL */ 1077 "Interrupt queue ack error", /* INTQERR */ 1078 "Uncorrectable dma parity error", /* CBPERR */ 1079 "32 port ACAP failed power up", /* ACPDEAD */ 1080 }; 1081 #define NHERRS (sizeof (mpherrmsg) / sizeof (mpherrmsg[0])) 1082 1083 mperror(mb, unit) 1084 register struct mblok *mb; 1085 int unit; 1086 { 1087 register char *cp; 1088 register int i; 1089 1090 if (mb->mb_softerr) { 1091 switch (mb->mb_softerr) { 1092 case DMAPERR: /* dma parity error */ 1093 cp = "dma parity error"; 1094 break; 1095 case ECCERR: 1096 cp = "local memory ecc error"; 1097 break; 1098 default: 1099 cp = "unknown error"; 1100 break; 1101 } 1102 log(LOG_ERR, "mp%d: soft error, %s", unit, cp); 1103 mb->mb_softerr = 0; 1104 } 1105 if (mb->mb_harderr) { 1106 if (mb->mb_harderr < NHERRS) 1107 cp = mpherrmsg[mb->mb_harderr]; 1108 else 1109 cp = "unknown error"; 1110 log(LOG_ERR, "mp%d: hard error, %s", unit, cp); 1111 if (mb->mb_status == MP_OPOPEN) { 1112 for (i = 0; i < MPMAXPORT; i++) { 1113 mpcleanport(mb, i); 1114 mb->mb_proto[i] = MPPROTO_UNUSED; 1115 } 1116 } 1117 mb->mb_harderr = 0; 1118 mb->mb_status = 0; 1119 } 1120 } 1121 1122 mppurge(addr, cc) 1123 register caddr_t addr; 1124 register int cc; 1125 { 1126 1127 for (; cc >= 0; addr += NBPG, cc -= NBPG) 1128 mtpr(P1DC, addr); 1129 } 1130 1131 /* 1132 * MPCC Download Pseudo-device. 1133 */ 1134 char mpdlbuf[MPDLBUFSIZE]; 1135 int mpdlbusy; /* interlock on download buffer */ 1136 int mpdlerr; 1137 1138 mpdlopen(dev) 1139 dev_t dev; 1140 { 1141 int unit, mpu; 1142 struct vba_device *vi; 1143 1144 unit = minor(dev); 1145 mpu = MPUNIT(unit); 1146 if (mpu >= NMP || (vi = mpinfo[mpu]) == 0 || vi->ui_alive == 0) 1147 return (ENODEV); 1148 return (0); 1149 } 1150 1151 mpdlwrite(dev, uio) 1152 dev_t dev; 1153 struct uio *uio; 1154 { 1155 register struct mpsoftc *ms = &mp_softc[MPUNIT(minor(dev))]; 1156 register struct mpdl *dl; 1157 int error; 1158 1159 if (ms->ms_mb == 0 || ms->ms_mb->mb_status != MP_DLOPEN) 1160 return (EFAULT); 1161 dl = &ms->ms_mb->mb_dl; 1162 dl->mpdl_count = uio->uio_iov->iov_len; 1163 dl->mpdl_data = (caddr_t) vtoph((struct proc *)0, mpdlbuf); 1164 if (error = uiomove(mpdlbuf, dl->mpdl_count, UIO_WRITE, uio)) 1165 return (error); 1166 uio->uio_resid -= dl->mpdl_count; /* set up return from write */ 1167 dl->mpdl_cmd = MPDLCMD_NORMAL; 1168 error = mpdlwait(dl); 1169 return (error); 1170 } 1171 1172 mpdlclose(dev) 1173 dev_t dev; 1174 { 1175 register struct mblok *mb = mp_softc[MPUNIT(minor(dev))].ms_mb; 1176 int ret = 0; 1177 1178 if (mb == 0 || mb->mb_status != MP_DLDONE) { 1179 mpbogus.status = 0; 1180 if (mpbogus.mb == mpbogus.mbloks[MPUNIT(minor(dev))]) 1181 mpdlbusy--; 1182 return (EEXIST); 1183 } 1184 mb->mb_status = MP_OPOPEN; 1185 mpbogus.status = 0; 1186 /* set to dead, for board handshake */ 1187 mb->mb_hostint.imok = MPIMOK_DEAD; 1188 return (0); 1189 } 1190 1191 mpreset(dev) 1192 dev_t dev; 1193 { 1194 /* XXX */ 1195 } 1196 1197 int mpdltimeout(); 1198 1199 mpdlioctl(dev, cmd, data, flag) 1200 dev_t dev; 1201 caddr_t data; 1202 { 1203 register struct mblok *mb; 1204 register struct mpdl *dl; 1205 int unit, error, s, i, j; 1206 1207 mb = mp_softc[unit=MPUNIT(minor(dev))].ms_mb; 1208 if (mb == 0) 1209 return (EEXIST); 1210 dl = &mb->mb_dl; 1211 error = 0; 1212 switch (cmd) { 1213 case MPIOPORTMAP: 1214 bcopy(data, (caddr_t)mb->mb_proto, sizeof (mb->mb_proto)); 1215 break; 1216 case MPIOHILO: 1217 bcopy(data, (caddr_t)&mb->mb_hiport, 2*(sizeof(mb->mb_hiport))); 1218 break; 1219 case MPIOENDDL: 1220 dl->mpdl_count = 0; 1221 dl->mpdl_data = 0; 1222 dl->mpdl_cmd = MPIOENDDL&IOCPARM_MASK; 1223 error = mpdlwait(dl); 1224 mpccinit(unit); 1225 mb->mb_status = MP_DLDONE; 1226 mpdlbusy--; 1227 break; 1228 case MPIOENDCODE: 1229 dl->mpdl_count = 0; 1230 dl->mpdl_data = 0; 1231 dl->mpdl_cmd = MPIOENDCODE&IOCPARM_MASK; 1232 error = mpdlwait(dl); 1233 break; 1234 case MPIOASYNCNF: 1235 bcopy(data, mpdlbuf, sizeof (struct abdcf)); 1236 dl->mpdl_data = (caddr_t) vtoph((struct proc *)0, mpdlbuf); 1237 dl->mpdl_count = sizeof (struct abdcf); 1238 dl->mpdl_cmd = MPIOASYNCNF&IOCPARM_MASK; 1239 error = mpdlwait(dl); 1240 break; 1241 case MPIOSTARTDL: 1242 while (mpdlbusy) 1243 sleep((caddr_t)&mpdlbusy, PZERO+1); 1244 mpdlbusy++; 1245 /* initialize the downloading interface */ 1246 mpbogus.magic = MPMAGIC; 1247 mpbogus.mb = mpbogus.mbloks[unit]; 1248 mpbogus.status = 1; 1249 dl->mpdl_status = EVSTATUS_FREE; 1250 dl->mpdl_count = 0; 1251 dl->mpdl_cmd = 0; 1252 dl->mpdl_data = (char *) 0; 1253 mpdlerr = 0; 1254 mb->mb_magic = MPMAGIC; 1255 mb->mb_ivec = mp_softc[unit].ms_ivec+1; /* download vector */ 1256 mb->mb_status = MP_DLPEND; 1257 mb->mb_diagswitch[0] = 'A'; 1258 mb->mb_diagswitch[1] = 'P'; 1259 s = spl8(); 1260 *(u_short *)mpinfo[unit]->ui_addr = 2; 1261 timeout(mpdltimeout, mb, 30*hz); /* approx 15 seconds */ 1262 sleep((caddr_t)&mb->mb_status, PZERO+1); 1263 splx(s); 1264 if (mb->mb_status == MP_DLOPEN) { 1265 untimeout(mpdltimeout, mb); 1266 } else if (mb->mb_status == MP_DLTIME) { 1267 mpbogus.status = 0; 1268 error = ETIMEDOUT; 1269 } else { 1270 mpbogus.status = 0; 1271 error = ENXIO; 1272 log(LOG_ERR, "mp%d: start download: unknown status %x", 1273 unit, mb->mb_status); 1274 } 1275 bzero(mb->mb_port, sizeof (mb->mb_port)); 1276 break; 1277 case MPIORESETBOARD: 1278 s = spl8(); 1279 if (mb->mb_imokclk) 1280 mb->mb_imokclk = 0; 1281 *(u_short *)mpinfo[unit]->ui_addr = 0x100; 1282 if (mb->mb_status == MP_DLOPEN || mb->mb_status == MP_DLDONE) { 1283 mpdlerr = MP_DLERROR; 1284 dl->mpdl_status = EVSTATUS_FREE; 1285 wakeup((caddr_t)&dl->mpdl_status); 1286 mpbogus.status = 0; 1287 } 1288 for (i = 0; i < MPMAXPORT; i++) { 1289 if (mb->mb_harderr || mb->mb_softerr) 1290 mperror(mb, i); 1291 mpcleanport(mb, i); 1292 mb->mb_proto[i] = MPPROTO_UNUSED; 1293 } 1294 mb->mb_status = 0; 1295 splx(s); 1296 break; 1297 default: 1298 error = EINVAL; 1299 break; 1300 } 1301 return (error); 1302 } 1303 1304 mpccinit(unit) 1305 int unit; 1306 { 1307 register struct mblok *mb = mp_softc[unit].ms_mb; 1308 register struct his *his; 1309 register int i, j; 1310 1311 mb->mb_status = MP_DLDONE; 1312 mb->mb_ivec = mp_softc[unit].ms_ivec; 1313 mb->mb_magic = MPMAGIC; 1314 /* Init host interface structure */ 1315 his = &mb->mb_hostint; 1316 his->semaphore = MPSEMA_AVAILABLE; 1317 for (i = 0; i < NMPPROTO; i++) 1318 for (j = 0; j < MPMAXPORT; j++) { 1319 his->proto[i].inbdone[j] = MPPORT_EOL; 1320 his->proto[i].outbdone[j] = MPPORT_EOL; 1321 } 1322 mb->mb_unit = unit; 1323 } 1324 1325 mpdlintr(mpcc) 1326 int mpcc; 1327 { 1328 register struct mblok *mb; 1329 register struct mpdl *dl; 1330 1331 mb = mp_softc[mpcc].ms_mb; 1332 if (mb == 0) { 1333 printf("mp%d: stray download interrupt\n", mpcc); 1334 return; 1335 } 1336 dl = &mb->mb_dl; 1337 switch (mb->mb_status) { 1338 case MP_DLOPEN: 1339 if (dl->mpdl_status != EVSTATUS_DONE) 1340 mpdlerr = MP_DLERROR; 1341 dl->mpdl_status = EVSTATUS_FREE; 1342 wakeup((caddr_t)&dl->mpdl_status); 1343 return; 1344 case MP_DLPEND: 1345 mb->mb_status = MP_DLOPEN; 1346 wakeup(&mb->mb_status); 1347 /* fall thru... */ 1348 case MP_DLTIME: 1349 return; 1350 case MP_OPOPEN: 1351 if (mb->mb_imokclk) 1352 mb->mb_imokclk = 0; 1353 mb->mb_nointcnt = 0; /* reset no interrupt count */ 1354 mb->mb_hostint.imok = MPIMOK_DEAD; 1355 mb->mb_imokclk = (caddr_t)1; 1356 break; 1357 default: 1358 log(LOG_ERR, "mp%d: mpdlintr, status %x\n", 1359 mpcc, mb->mb_status); 1360 break; 1361 } 1362 } 1363 1364 mpdltimeout(mp) 1365 struct mblok *mp; 1366 { 1367 1368 mp->mb_status = MP_DLTIME; 1369 wakeup((caddr_t)&mp->mb_status); 1370 } 1371 1372 /* 1373 * Wait for a transfer to complete or a timeout to occur. 1374 */ 1375 mpdlwait(dl) 1376 register struct mpdl *dl; 1377 { 1378 int s, error = 0; 1379 1380 s = spl8(); 1381 dl->mpdl_status = EVSTATUS_GO; 1382 while (dl->mpdl_status != EVSTATUS_FREE) { 1383 sleep((caddr_t)&dl->mpdl_status, PZERO+1); 1384 if (mpdlerr == MP_DLERROR) 1385 error = EIO; 1386 } 1387 splx(s); 1388 return (error); 1389 } 1390 #endif 1391