1 /* 2 * Copyright (c) 1988 Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Computer Consoles Inc. 7 * 8 * %sccs.include.redist.c% 9 * 10 * @(#)mp.c 7.16 (Berkeley) 12/16/90 11 */ 12 13 #include "mp.h" 14 #if NMP > 0 15 /* 16 * Multi Protocol Communications Controller (MPCC). 17 * Asynchronous Terminal Protocol Support. 18 */ 19 #include "sys/param.h" 20 #include "sys/ioctl.h" 21 #include "sys/tty.h" 22 #include "sys/user.h" 23 #include "sys/map.h" 24 #include "sys/buf.h" 25 #include "sys/conf.h" 26 #include "sys/file.h" 27 #include "sys/errno.h" 28 #include "sys/syslog.h" 29 #include "sys/vmmac.h" 30 #include "sys/kernel.h" 31 #include "sys/clist.h" 32 33 #include "../include/pte.h" 34 #include "../include/mtpr.h" 35 36 #include "../vba/vbavar.h" 37 #include "../vba/mpreg.h" 38 39 #define MPCHUNK 16 40 #define MPPORT(n) ((n) & 0xf) 41 #define MPUNIT(n) ((n) >> 4) 42 43 /* 44 * Driver information for auto-configuration stuff. 45 */ 46 int mpprobe(), mpattach(), mpintr(); 47 struct vba_device *mpinfo[NMP]; 48 long mpstd[] = { 0 }; 49 struct vba_driver mpdriver = 50 { mpprobe, 0, mpattach, 0, mpstd, "mp", mpinfo }; 51 52 int mpstart(); 53 int mpparam(); 54 struct mpevent *mpparam2(); 55 struct mpevent *mp_getevent(); 56 57 /* 58 * The following structure is needed to deal with mpcc's convoluted 59 * method for locating it's mblok structures (hold your stomach). 60 * When an mpcc is reset at boot time it searches host memory 61 * looking for a string that says ``ThIs Is MpCc''. The mpcc 62 * then reads the structure to locate the pointer to it's mblok 63 * structure (you can wretch now). 64 */ 65 struct mpbogus { 66 char s[12]; /* `ThIs Is MpCc'' */ 67 u_char status; 68 u_char unused; 69 u_short magic; 70 struct mblok *mb; 71 struct mblok *mbloks[NMP]; /* can support at most 16 mpcc's */ 72 } mpbogus = { 'T','h','I','s',' ','I','s',' ','M','p','C','c' }; 73 74 /* 75 * Software state per unit. 76 */ 77 struct mpsoftc { 78 u_int ms_ivec; /* interrupt vector */ 79 u_int ms_softCAR; /* software carrier for async */ 80 struct mblok *ms_mb; /* mpcc status area */ 81 struct vb_buf ms_buf; /* vba resources for ms_mb */ 82 struct hxmtl ms_hxl[MPMAXPORT];/* host transmit list */ 83 struct asyncparam ms_async[MPMAXPORT][MPINSET];/* async structs */ 84 char ms_cbuf[MPMAXPORT][MPOUTSET][CBSIZE];/* input character buffers */ 85 } mp_softc[NMP]; 86 87 struct speedtab 88 mpspeedtab[] = { 89 9600, M9600, /* baud rate = 9600 */ 90 4800, M4800, /* baud rate = 4800 */ 91 2400, M2400, /* baud rate = 2400 */ 92 1800, M1800, /* baud rate = 1800 */ 93 1200, M1200, /* baud rate = 1200 */ 94 600, M600, /* baud rate = 600 */ 95 300, M300, /* baud rate = 300 */ 96 200, M200, /* baud rate = 200 */ 97 150, M150, /* baud rate = 150 */ 98 134, M134_5, /* baud rate = 134.5 */ 99 110, M110, /* baud rate = 110 */ 100 75, M75, /* baud rate = 75 */ 101 50, M50, /* baud rate = 50 */ 102 0, M0, /* baud rate = 0 */ 103 2000, M2000, /* baud rate = 2000 */ 104 3600, M3600, /* baud rate = 3600 */ 105 7200, M7200, /* baud rate = 7200 */ 106 19200, M19200, /* baud rate = 19,200 */ 107 24000, M24000, /* baud rate = 24,000 */ 108 28400, M28400, /* baud rate = 28,400 */ 109 37800, M37800, /* baud rate = 37,800 */ 110 40300, M40300, /* baud rate = 40,300 */ 111 48000, M48000, /* baud rate = 48,000 */ 112 52000, M52000, /* baud rate = 52,000 */ 113 56800, M56800, /* baud rate = 56,800 */ 114 EXTA, MEXTA, /* baud rate = Ext A */ 115 EXTB, MEXTB, /* baud rate = Ext B */ 116 -1, -1, 117 }; 118 119 struct tty mp_tty[NMP*MPCHUNK]; 120 #ifndef lint 121 int nmp = NMP*MPCHUNK; 122 #endif 123 124 int ttrstrt(); 125 126 mpprobe(reg, vi) 127 caddr_t reg; 128 struct vba_device *vi; 129 { 130 register int br, cvec; 131 register struct mpsoftc *ms; 132 133 #ifdef lint 134 br = 0; cvec = br; br = cvec; 135 mpintr(0); 136 mpdlintr(0); 137 #endif 138 if (badaddr(reg, 2)) 139 return (0); 140 ms = &mp_softc[vi->ui_unit]; 141 /* 142 * Allocate page tables and mblok 143 * structure (mblok in non-cached memory). 144 */ 145 if (vbainit(&ms->ms_buf, sizeof (struct mblok), VB_32BIT) == 0) { 146 printf("mp%d: vbainit failed\n", vi->ui_unit); 147 return (0); 148 } 149 ms->ms_mb = (struct mblok *)ms->ms_buf.vb_rawbuf; 150 ms->ms_ivec = MPINTRBASE + 2*vi->ui_unit; /* XXX */ 151 br = 0x14, cvec = ms->ms_ivec; /* XXX */ 152 return (sizeof (*reg)); 153 } 154 155 mpattach(vi) 156 register struct vba_device *vi; 157 { 158 register struct mpsoftc *ms = &mp_softc[vi->ui_unit]; 159 160 ms->ms_softCAR = vi->ui_flags; 161 /* 162 * Setup pointer to mblok, initialize bogus 163 * status block used by mpcc to locate the pointer 164 * and then poke the mpcc to get it to search host 165 * memory to find mblok pointer. 166 */ 167 mpbogus.mbloks[vi->ui_unit] = (struct mblok *)ms->ms_buf.vb_physbuf; 168 *(short *)vi->ui_addr = 0x100; /* magic */ 169 } 170 171 /* 172 * Open an mpcc port. 173 */ 174 /* ARGSUSED */ 175 mpopen(dev, mode) 176 dev_t dev; 177 { 178 register struct tty *tp; 179 register struct mpsoftc *ms; 180 int error, s, port, unit, mpu; 181 struct vba_device *vi; 182 struct mpport *mp; 183 struct mpevent *ev; 184 185 unit = minor(dev); 186 mpu = MPUNIT(unit); 187 if (mpu >= NMP || (vi = mpinfo[mpu]) == 0 || vi->ui_alive == 0) 188 return (ENXIO); 189 tp = &mp_tty[unit]; 190 if (tp->t_state & TS_XCLUDE && u.u_uid != 0) 191 return (EBUSY); 192 ms = &mp_softc[mpu]; 193 port = MPPORT(unit); 194 if (ms->ms_mb->mb_proto[port] != MPPROTO_ASYNC || 195 ms->ms_mb->mb_status != MP_OPOPEN) 196 return (ENXIO); 197 mp = &ms->ms_mb->mb_port[port]; /* host mpcc struct */ 198 s = spl8(); 199 /* 200 * serialize open and close events 201 */ 202 while ((mp->mp_flags & MP_PROGRESS) || ((tp->t_state & TS_WOPEN) && 203 !(mode&O_NONBLOCK) && !(tp->t_cflag&CLOCAL))) 204 if (error = tsleep((caddr_t)&tp->t_canq, TTIPRI | PCATCH, 205 ttopen, 0)) { 206 splx(s); 207 return (error); 208 } 209 restart: 210 tp->t_state |= TS_WOPEN; 211 tp->t_addr = (caddr_t)ms; 212 tp->t_oproc = mpstart; 213 tp->t_param = mpparam; 214 tp->t_dev = dev; 215 if ((tp->t_state & TS_ISOPEN) == 0) { 216 ttychars(tp); 217 if (tp->t_ispeed == 0) { 218 tp->t_ispeed = TTYDEF_SPEED; 219 tp->t_ospeed = TTYDEF_SPEED; 220 tp->t_iflag = TTYDEF_IFLAG; 221 tp->t_oflag = TTYDEF_OFLAG; 222 tp->t_lflag = TTYDEF_LFLAG; 223 tp->t_cflag = TTYDEF_CFLAG; 224 } 225 /* 226 * Initialize port state: init MPCC interface 227 * structures for port and setup modem control. 228 */ 229 error = mpportinit(ms, mp, port); 230 if (error) 231 goto bad; 232 ev = mpparam2(tp, &tp->t_termios); 233 if (ev == 0) { 234 error = ENOBUFS; 235 goto bad; 236 } 237 mp->mp_flags |= MP_PROGRESS; 238 mpcmd(ev, EVCMD_OPEN, 0, ms->ms_mb, port); 239 /* 240 * wait for port to start 241 */ 242 while (mp->mp_proto != MPPROTO_ASYNC) 243 if (error = tsleep((caddr_t)&tp->t_canq, 244 TTIPRI | PCATCH, ttopen, 0)) 245 goto bad; 246 ttsetwater(tp); 247 mp->mp_flags &= ~MP_PROGRESS; 248 } 249 while ((mode&O_NONBLOCK) == 0 && (tp->t_cflag&CLOCAL) == 0 && 250 (tp->t_state & TS_CARR_ON) == 0) { 251 if (error = ttysleep(tp, (caddr_t)&tp->t_rawq, TTIPRI | PCATCH, 252 ttopen, 0)) 253 goto bad; 254 /* 255 * a mpclose() might have disabled port. if so restart 256 */ 257 if (mp->mp_proto != MPPROTO_ASYNC) 258 goto restart; 259 tp->t_state |= TS_WOPEN; 260 } 261 error = (*linesw[tp->t_line].l_open)(dev,tp); 262 done: 263 splx(s); 264 /* 265 * wakeup those processes waiting for the open to complete 266 */ 267 wakeup((caddr_t)&tp->t_canq); 268 return (error); 269 bad: 270 tp->t_state &= ~TS_WOPEN; 271 goto done; 272 } 273 274 /* 275 * Close an mpcc port. 276 */ 277 /* ARGSUSED */ 278 mpclose(dev, flag) 279 dev_t dev; 280 { 281 register struct tty *tp; 282 register struct mpport *mp; 283 register struct mpevent *ev; 284 int s, port, unit, error = 0; 285 struct mblok *mb; 286 287 unit = minor(dev); 288 tp = &mp_tty[unit]; 289 port = MPPORT(unit); 290 mb = mp_softc[MPUNIT(unit)].ms_mb; 291 mp = &mb->mb_port[port]; 292 s = spl8(); 293 if (mp->mp_flags & MP_PROGRESS) { 294 if (mp->mp_flags & MP_REMBSY) { 295 mp->mp_flags &= ~MP_REMBSY; 296 splx(s); 297 return (0); 298 } 299 while (mp->mp_flags & MP_PROGRESS) 300 if (error = tsleep((caddr_t)&tp->t_canq, 301 TTIPRI | PCATCH, ttclos, 0)) { 302 splx(s); 303 return (error); 304 } 305 } 306 mp->mp_flags |= MP_PROGRESS; 307 (*linesw[tp->t_line].l_close)(tp); 308 ev = mp_getevent(mp, unit, 1); 309 if (ev == 0) { 310 error = ENOBUFS; 311 mp->mp_flags &= ~MP_PROGRESS; 312 goto out; 313 } 314 if (tp->t_state & TS_HUPCLS || (tp->t_state & TS_ISOPEN) == 0) 315 mpmodem(unit, MMOD_OFF); 316 else 317 mpmodem(unit, MMOD_ON); 318 mpcmd(ev, EVCMD_CLOSE, 0, mb, port); 319 error = ttyclose(tp); 320 out: 321 if (mp->mp_flags & MP_REMBSY) 322 mpclean(mb, port); 323 else 324 while (mp->mp_flags & MP_PROGRESS && error == 0) 325 error = tsleep((caddr_t)&tp->t_canq, TTIPRI | PCATCH, 326 ttclos, 0); 327 splx(s); 328 return (error); 329 } 330 331 /* 332 * Read from an mpcc port. 333 */ 334 mpread(dev, uio, flag) 335 dev_t dev; 336 struct uio *uio; 337 { 338 struct tty *tp; 339 340 tp = &mp_tty[minor(dev)]; 341 return ((*linesw[tp->t_line].l_read)(tp, uio, flag)); 342 } 343 344 /* 345 * Write to an mpcc port. 346 */ 347 mpwrite(dev, uio, flag) 348 dev_t dev; 349 struct uio *uio; 350 { 351 struct tty *tp; 352 353 tp = &mp_tty[minor(dev)]; 354 return ((*linesw[tp->t_line].l_write)(tp, uio, flag)); 355 } 356 357 /* 358 * Ioctl for a mpcc port 359 */ 360 mpioctl(dev, cmd, data, flag) 361 dev_t dev; 362 caddr_t data; 363 { 364 register struct tty *tp; 365 register struct mpsoftc *ms; 366 register struct mpport *mp; 367 register struct mpevent *ev; 368 int s, port, error, unit; 369 struct mblok *mb; 370 371 unit = minor(dev); 372 tp = &mp_tty[unit]; 373 ms = &mp_softc[MPUNIT(unit)]; 374 mb = ms->ms_mb; 375 port = MPPORT(unit); 376 mp = &mb->mb_port[port]; 377 if (mp->mp_proto != MPPROTO_ASYNC) 378 return(ENXIO); 379 error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag); 380 if (error >= 0) 381 return (error); 382 error = ttioctl(tp, cmd, data, flag); 383 if (error >= 0) 384 return (error); 385 switch (cmd) { 386 case TIOCSBRK: /* send break */ 387 case TIOCCBRK: /* clear break */ 388 s = spl8(); 389 while (mp->mp_flags & MP_IOCTL) { 390 if (error = tsleep((caddr_t)&tp->t_canq, 391 TTIPRI | PCATCH, ttyout, 0)) { 392 splx(s); 393 return (error); 394 } 395 if (mp->mp_proto != MPPROTO_ASYNC) { 396 splx(s); 397 return (ENXIO); 398 } 399 } 400 ev = mp_getevent(mp, unit, 0); 401 if (ev) { 402 mp->mp_flags |= MP_IOCTL; 403 mpcmd(ev, EVCMD_IOCTL, 404 (cmd == TIOCSBRK ? A_BRKON : A_BRKOFF), mb, port); 405 } else 406 error = ENOBUFS; 407 splx(s); 408 break; 409 case TIOCSDTR: /* set dtr control line */ 410 break; 411 case TIOCCDTR: /* clear dtr control line */ 412 break; 413 default: 414 error = ENOTTY; 415 break; 416 } 417 return (error); 418 } 419 420 mpparam(tp, t) 421 struct tty *tp; 422 struct termios *t; 423 { 424 register struct mpevent *ev; 425 int unit = minor(tp->t_dev); 426 struct mpsoftc *ms = &mp_softc[MPUNIT(unit)]; 427 struct mblok *mb = ms->ms_mb; 428 429 ev = mpparam2(tp, t); 430 if (ev == 0) 431 return (ENOBUFS); 432 mpcmd(ev, EVCMD_IOCTL, A_CHGALL, mb, MPPORT(unit)); 433 return (0); 434 } 435 436 struct mpevent * 437 mpparam2(tp, t) 438 register struct tty *tp; 439 struct termios *t; 440 { 441 register struct mpevent *ev; 442 register struct mpport *mp; 443 int unit = minor(tp->t_dev); 444 struct mblok *mb; 445 struct mpsoftc *ms; 446 register struct asyncparam *asp; 447 int port, speedcode; 448 449 ms = &mp_softc[MPUNIT(unit)]; 450 mb = ms->ms_mb; 451 port = MPPORT(unit); 452 mp = &mb->mb_port[port]; 453 ev = mp_getevent(mp, unit, 0); /* XXX */ 454 speedcode = ttspeedtab(t->c_ospeed, mpspeedtab); 455 if (ev == 0 || speedcode < 0) { 456 printf("mp mpunit %d port %d param2 failed ev: %x speed %d, wanted %d\n", 457 MPUNIT(unit), port, ev, speedcode, t->c_ospeed); 458 return (0); /* XXX */ 459 } 460 /* YUCK */ 461 asp = &ms->ms_async[port][mp->mp_on?mp->mp_on-1:MPINSET-1]; 462 asp->ap_xon = t->c_cc[VSTART]; 463 asp->ap_xoff = t->c_cc[VSTOP]; 464 if (!(t->c_iflag&IXON) || (asp->ap_xon == _POSIX_VDISABLE) || 465 (asp->ap_xoff == _POSIX_VDISABLE)) 466 asp->ap_xena = MPA_DIS; 467 else 468 asp->ap_xena = MPA_ENA; 469 asp->ap_xany = ((t->c_iflag & IXANY) ? MPA_ENA : MPA_DIS); 470 #ifdef notnow 471 if (t->t_cflag&CSIZE) == CS8) { 472 #endif 473 asp->ap_data = MPCHAR_8; 474 asp->ap_parity = MPPAR_NONE; 475 #ifdef notnow 476 } else { 477 asp->ap_data = MPCHAR_7; 478 if ((t->c_flags & (EVENP|ODDP)) == ODDP) /* XXX */ 479 asp->ap_parity = MPPAR_ODD; 480 else 481 asp->ap_parity = MPPAR_EVEN; 482 } 483 #endif 484 asp->ap_loop = MPA_DIS; /* disable loopback */ 485 asp->ap_rtimer = A_RCVTIM; /* default receive timer */ 486 if (t->c_ospeed == B110) 487 asp->ap_stop = MPSTOP_2; 488 else 489 asp->ap_stop = MPSTOP_1; 490 if (t->c_ospeed == 0) { 491 tp->t_state |= TS_HUPCLS; 492 setm(&asp->ap_modem, 0, DROP); 493 seti(&asp->ap_intena, A_DCD); 494 return (ev); 495 } 496 if (t->c_ospeed == EXTA || t->c_ospeed == EXTB) 497 asp->ap_baud = M19200; 498 else 499 asp->ap_baud = speedcode; 500 if (1 || ms->ms_softCAR & (1<<port)) /* XXX HARDWIRE FOR NOW */ 501 setm(&asp->ap_modem, A_DTR, ASSERT); 502 else 503 setm(&asp->ap_modem, A_DTR, AUTO); 504 seti(&asp->ap_intena, A_DCD); 505 return(ev); 506 } 507 508 mpstart(tp) 509 register struct tty *tp; 510 { 511 register struct mpevent *ev; 512 register struct mpport *mp; 513 struct mblok *mb; 514 struct mpsoftc *ms; 515 int port, unit, xcnt, n, s, i; 516 struct hxmtl *hxp; 517 struct clist outq; 518 519 s = spl8(); 520 unit = minor(tp->t_dev); 521 ms = &mp_softc[MPUNIT(unit)]; 522 mb = ms->ms_mb; 523 port = MPPORT(unit); 524 mp = &mb->mb_port[port]; 525 hxp = &ms->ms_hxl[port]; 526 xcnt = 0; 527 outq = tp->t_outq; 528 for (i = 0; i < MPXMIT; i++) { 529 if (tp->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP)) 530 break; 531 if (outq.c_cc <= tp->t_lowat) { 532 if (tp->t_state & TS_ASLEEP) { 533 tp->t_state &= ~TS_ASLEEP; 534 wakeup((caddr_t)&tp->t_outq); 535 } 536 if (tp->t_wsel) { 537 selwakeup(tp->t_wsel, tp->t_state & TS_WCOLL); 538 tp->t_wsel = 0; 539 tp->t_state &= ~TS_WCOLL; 540 } 541 } 542 if (outq.c_cc == 0) 543 break; 544 /* 545 * If we're not currently busy outputting, 546 * and there is data to be output, set up 547 * port transmit structure to send to mpcc. 548 */ 549 if (1) /* || tp->t_flags & (RAW|LITOUT)) XXX FIX */ 550 n = ndqb(&outq, 0); 551 else { 552 n = ndqb(&outq, 0200); 553 if (n == 0) { 554 if (xcnt > 0) 555 break; 556 n = getc(&outq); 557 timeout(ttrstrt, (caddr_t)tp, (n&0177)+6); 558 tp->t_state |= TS_TIMEOUT; 559 break; 560 } 561 } 562 hxp->dblock[i] = (caddr_t)kvtophys(outq.c_cf); 563 hxp->size[i] = n; 564 xcnt++; /* count of xmts to send */ 565 ndadvance(&outq, n); 566 } 567 /* 568 * If data to send, poke mpcc. 569 */ 570 if (xcnt) { 571 ev = mp_getevent(mp, unit, 0); 572 if (ev == 0) { 573 tp->t_state &= ~(TS_BUSY|TS_TIMEOUT); 574 } else { 575 tp->t_state |= TS_BUSY; 576 ev->ev_count = xcnt; 577 mpcmd(ev, EVCMD_WRITE, 0, mb, MPPORT(unit)); 578 } 579 } 580 splx(s); 581 } 582 583 /* 584 * Advance cc bytes from q but don't free memory. 585 */ 586 ndadvance(q, cc) 587 register struct clist *q; 588 register cc; 589 { 590 register struct cblock *bp; 591 char *end; 592 int rem, s; 593 594 s = spltty(); 595 if (q->c_cc <= 0) 596 goto out; 597 while (cc>0 && q->c_cc) { 598 bp = (struct cblock *)((int)q->c_cf & ~CROUND); 599 if ((int)bp == (((int)q->c_cl-1) & ~CROUND)) { 600 end = q->c_cl; 601 } else { 602 end = (char *)((int)bp + sizeof (struct cblock)); 603 } 604 rem = end - q->c_cf; 605 if (cc >= rem) { 606 cc -= rem; 607 q->c_cc -= rem; 608 q->c_cf = bp->c_next->c_info; 609 } else { 610 q->c_cc -= cc; 611 q->c_cf += cc; 612 break; 613 } 614 } 615 if (q->c_cc <= 0) { 616 q->c_cf = q->c_cl = NULL; 617 q->c_cc = 0; 618 } 619 out: 620 splx(s); 621 } 622 623 /* 624 * Stop output on a line, e.g. for ^S/^Q or output flush. 625 */ 626 /* ARGSUSED */ 627 mpstop(tp, rw) 628 register struct tty *tp; 629 int rw; 630 { 631 register struct mpport *mp; 632 register struct mpevent *ev; 633 int unit = minor(tp->t_dev); 634 int port; 635 struct mblok *mb; 636 int s; 637 638 s = spl8(); 639 if (tp->t_state & TS_BUSY) { 640 if ((tp->t_state & TS_TTSTOP) == 0) { 641 tp->t_state |= TS_FLUSH; 642 port = MPPORT(unit); 643 mb = mp_softc[MPUNIT(unit)].ms_mb; 644 mp = &mb->mb_port[port]; 645 ev = mp_getevent(mp, unit, 0); 646 if (ev == 0) { 647 splx(s); 648 return; 649 } 650 mpcmd(ev, EVCMD_WRITE, A_FLUSH, mb, port); 651 } 652 } 653 splx(s); 654 } 655 656 /* 657 * Initialize an async port's MPCC state. 658 */ 659 mpportinit(ms, mp, port) 660 register struct mpsoftc *ms; 661 register struct mpport *mp; 662 int port; 663 { 664 register struct mpevent *ev; 665 register int i; 666 caddr_t ptr; 667 668 mp->mp_on = mp->mp_off = 0; 669 mp->mp_nextrcv = 0; 670 mp->mp_flags = 0; 671 ev = &mp->mp_recvq[0]; 672 for (i = 0; ev < &mp->mp_recvq[MPINSET]; ev++, i++) { 673 ev->ev_status = EVSTATUS_FREE; 674 ev->ev_cmd = 0; 675 ev->ev_opts = 0; 676 ev->ev_error = 0; 677 ev->ev_flags = 0; 678 ev->ev_count = 0; 679 ev->ev_un.hxl = (struct hxmtl *) kvtophys(&ms->ms_hxl[port]); 680 ev->ev_params = (caddr_t) kvtophys(&ms->ms_async[port][i]); 681 } 682 ev = &mp->mp_sendq[0]; 683 for (i = 0; ev < &mp->mp_sendq[MPOUTSET]; ev++, i++) { 684 /* init so that L2 can't send any events */ 685 /* to host until open has completed */ 686 ev->ev_status = EVSTATUS_FREE; 687 ev->ev_cmd = 0; 688 ev->ev_opts = 0; 689 ev->ev_error = 0; 690 ev->ev_flags = 0; 691 ev->ev_count = 0; 692 ptr = (caddr_t) &ms->ms_cbuf[port][i][0]; 693 ev->ev_un.rcvblk = (u_char *)kvtophys(ptr); 694 ev->ev_params = (caddr_t) kvtophys(ptr); 695 } 696 return (0); 697 } 698 699 /* 700 * Send an event to an mpcc. 701 */ 702 mpcmd(ev, cmd, flags, mb, port) 703 register struct mpevent *ev; 704 struct mblok *mb; 705 { 706 int s; 707 708 s = spl8(); 709 /* move host values to inbound entry */ 710 ev->ev_cmd = cmd; 711 ev->ev_opts = flags; 712 /* show event ready for mpcc */ 713 ev->ev_status = EVSTATUS_GO; 714 mpintmpcc(mb, port); 715 splx(s); 716 } 717 718 /* 719 * Return the next available event entry for the indicated port. 720 */ 721 struct mpevent * 722 mp_getevent(mp, unit, cls_req) 723 register struct mpport *mp; 724 int unit; 725 int cls_req; 726 { 727 register struct mpevent *ev; 728 int i, s; 729 730 s = spl8(); 731 ev = &mp->mp_recvq[mp->mp_on]; 732 if (ev->ev_status != EVSTATUS_FREE) 733 goto bad; 734 /* 735 * If not a close request, verify one extra 736 * event is available for closing the port. 737 */ 738 if (!cls_req) { 739 if ((i = mp->mp_on + 1) >= MPINSET) 740 i = 0; 741 if (mp->mp_recvq[i].ev_status != EVSTATUS_FREE) 742 goto bad; 743 } 744 /* init inbound fields marking this entry as busy */ 745 ev->ev_cmd = 0; 746 ev->ev_opts = 0; 747 ev->ev_error = 0; 748 ev->ev_flags = 0; 749 ev->ev_count = 0; 750 ev->ev_status = EVSTATUS_BUSY; 751 /* adjust pointer to next available inbound entry */ 752 adjptr(mp->mp_on, MPINSET); 753 splx(s); 754 return (ev); 755 bad: 756 splx(s); 757 log(LOG_ERR, "mp%d: port%d, out of events\n", 758 MPUNIT(unit), MPPORT(unit)); 759 return ((struct mpevent *)0); 760 } 761 762 mpmodem(unit, flag) 763 int unit, flag; 764 { 765 struct mpsoftc *ms = &mp_softc[MPUNIT(unit)]; 766 int port = MPPORT(unit); 767 register struct mpport *mp; 768 register struct asyncparam *asp; 769 770 mp = &ms->ms_mb->mb_port[port]; 771 asp = &ms->ms_async[port][mp->mp_on?mp->mp_on-1:MPINSET-1]; 772 if (flag == MMOD_ON) { 773 if (1 || ms->ms_softCAR & (1 << port))/* XXX HARDWIRE FOR NOW */ 774 setm(&asp->ap_modem, A_DTR, ASSERT); 775 else 776 setm(&asp->ap_modem, A_DTR, AUTO); 777 seti(&asp->ap_intena, A_DCD); 778 } else { 779 setm(&asp->ap_modem, 0, DROP); 780 seti(&asp->ap_intena, 0); 781 } 782 } 783 784 /* 785 * Set up the modem control structure according to mask. 786 * Each set bit in the mask means assert the corresponding 787 * modem control line, otherwise, it will be dropped. 788 * RTS is special since it can either be asserted, dropped 789 * or put in auto mode for auto modem control. 790 */ 791 static 792 setm(mc, mask, rts) 793 register struct mdmctl *mc; 794 register int mask; 795 { 796 797 mc->mc_rngdsr = (mask & A_RNGDSR) ? ASSERT : DROP; 798 mc->mc_rate = (mask & A_RATE) ? ASSERT : DROP; 799 mc->mc_dcd = (mask & A_DCD) ? ASSERT : DROP; 800 mc->mc_sectx = (mask & A_SECTX) ? ASSERT : DROP; 801 mc->mc_cts = (mask & A_CTS) ? ASSERT : DROP; 802 mc->mc_secrx = (mask & A_SECRX) ? ASSERT : DROP; 803 mc->mc_dtr = (mask & A_DTR) ? ASSERT : DROP; 804 mc->mc_rts = rts; 805 } 806 807 /* 808 * Set up the status change enable field from mask. 809 * When a signal is enabled in this structure and 810 * and a change in state on a corresponding modem 811 * control line occurs, a status change event will 812 * be delivered to the host. 813 */ 814 static 815 seti(mc, mask) 816 register struct mdmctl *mc; 817 register int mask; 818 { 819 820 mc->mc_rngdsr = (mask & A_RNGDSR) ? MDM_ON : MDM_OFF; 821 mc->mc_rate = (mask & A_RATE) ? MDM_ON : MDM_OFF; 822 mc->mc_dcd = (mask & A_DCD) ? MDM_ON : MDM_OFF; 823 mc->mc_sectx = (mask & A_SECTX) ? MDM_ON : MDM_OFF; 824 mc->mc_cts = (mask & A_CTS) ? MDM_ON : MDM_OFF; 825 mc->mc_secrx = (mask & A_SECRX) ? MDM_ON : MDM_OFF; 826 mc->mc_dtr = (mask & A_DTR) ? MDM_ON : MDM_OFF; 827 mc->mc_rts = (mask & A_RTS) ? MDM_ON : MDM_OFF; 828 } 829 830 mpcleanport(mb, port) 831 struct mblok *mb; 832 int port; 833 { 834 register struct mpport *mp; 835 register struct tty *tp; 836 837 mp = &mb->mb_port[port]; 838 if (mp->mp_proto == MPPROTO_ASYNC) { 839 mp->mp_flags = MP_REMBSY; 840 /* signal loss of carrier and close */ 841 tp = &mp_tty[mb->mb_unit*MPCHUNK+port]; 842 ttyflush(tp, FREAD|FWRITE); 843 (void) (*linesw[tp->t_line].l_modem)(tp, 0); 844 } 845 } 846 847 mpclean(mb, port) 848 register struct mblok *mb; 849 int port; 850 { 851 register struct mpport *mp; 852 register struct mpevent *ev; 853 register int i; 854 u_char list[2]; 855 int unit; 856 857 mp = &mb->mb_port[port]; 858 unit = mb->mb_unit; 859 for (i = mp->mp_off; i != mp->mp_on; i = (i+1 % MPINSET)) { 860 ev = &mp->mp_recvq[i]; 861 ev->ev_error = ENXIO; 862 ev->ev_status = EVSTATUS_DONE; 863 } 864 list[0] = port, list[1] = MPPORT_EOL; 865 mpxintr(unit, list); 866 mprintr(unit, list); 867 /* Clear async for port */ 868 mp->mp_proto = MPPROTO_UNUSED; 869 mp->mp_flags = 0; 870 mp->mp_on = 0; 871 mp->mp_off = 0; 872 mp->mp_nextrcv = 0; 873 874 mp_tty[unit*MPCHUNK + port].t_state = 0; 875 for (ev = &mp->mp_sendq[0]; ev < &mp->mp_sendq[MPOUTSET]; ev++) { 876 ev->ev_status = EVSTATUS_FREE; 877 ev->ev_cmd = 0; 878 ev->ev_error = 0; 879 ev->ev_un.rcvblk = 0; 880 ev->ev_params = 0; 881 } 882 for (ev = &mp->mp_recvq[0]; ev < &mp->mp_recvq[MPINSET]; ev++) { 883 ev->ev_status = EVSTATUS_FREE; 884 ev->ev_cmd = 0; 885 ev->ev_error = 0; 886 ev->ev_params = 0; 887 } 888 } 889 890 /* 891 * MPCC interrupt handler. 892 */ 893 mpintr(mpcc) 894 int mpcc; 895 { 896 register struct mblok *mb; 897 register struct his *his; 898 899 mb = mp_softc[mpcc].ms_mb; 900 if (mb == 0) { 901 printf("mp%d: stray interrupt\n", mpcc); 902 return; 903 } 904 his = &mb->mb_hostint; 905 his->semaphore &= ~MPSEMA_AVAILABLE; 906 /* 907 * Check for events to be processed. 908 */ 909 if (his->proto[MPPROTO_ASYNC].outbdone[0] != MPPORT_EOL) 910 mprintr(mpcc, his->proto[MPPROTO_ASYNC].outbdone); 911 if (his->proto[MPPROTO_ASYNC].inbdone[0] != MPPORT_EOL) 912 mpxintr(mpcc, his->proto[MPPROTO_ASYNC].inbdone); 913 if (mb->mb_harderr || mb->mb_softerr) 914 mperror(mb, mpcc); 915 his->semaphore |= MPSEMA_AVAILABLE; 916 } 917 918 /* 919 * Handler for processing completion of transmitted events. 920 */ 921 mpxintr(unit, list) 922 register u_char *list; 923 { 924 register struct mpport *mp; 925 register struct mpevent *ev; 926 register struct mblok *mb; 927 register struct tty *tp; 928 register struct asyncparam *ap; 929 struct mpsoftc *ms; 930 int port, i, j; 931 # define nextevent(mp) &mp->mp_recvq[mp->mp_off] 932 933 ms = &mp_softc[unit]; 934 mb = mp_softc[unit].ms_mb; 935 for (j = 0; j < MPMAXPORT && ((port = *list++) != MPPORT_EOL); j++) { 936 /* 937 * Process each completed entry in the inbound queue. 938 */ 939 mp = &mb->mb_port[port]; 940 tp = &mp_tty[unit*MPCHUNK + port]; 941 ev = nextevent(mp); 942 for (; ev->ev_status & EVSTATUS_DONE; ev = nextevent(mp)) { 943 /* YUCK */ 944 ap = &ms->ms_async[port][mp->mp_off]; 945 mppurge((caddr_t)ap, (int)sizeof (*ap)); 946 switch (ev->ev_cmd) { 947 case EVCMD_OPEN: 948 /* 949 * Open completion, start all reads and 950 * assert modem status information. 951 */ 952 for (i = 0; i < MPOUTSET; i++) 953 mp->mp_sendq[i].ev_status = EVSTATUS_GO; 954 (*linesw[tp->t_line].l_modem) 955 (tp, ap->ap_modem.mc_dcd == ASSERT); 956 mp_freein(ev); 957 adjptr(mp->mp_off, MPINSET); 958 mp->mp_proto = MPPROTO_ASYNC; /* XXX */ 959 wakeup((caddr_t)&tp->t_canq); 960 break; 961 case EVCMD_CLOSE: 962 /* 963 * Close completion, flush all pending 964 * transmissions, free resources, and 965 * cleanup mpcc port state. 966 */ 967 for (i = 0; i < MPOUTSET; i++) { 968 mp->mp_sendq[i].ev_status = 969 EVSTATUS_FREE; 970 mp->mp_sendq[i].ev_un.rcvblk = 0; 971 mp->mp_sendq[i].ev_params = 0; 972 } 973 mp_freein(ev); 974 adjptr(mp->mp_off, MPINSET); 975 tp->t_state &= ~(TS_CARR_ON|TS_BUSY|TS_FLUSH); 976 mp->mp_on = mp->mp_off = mp->mp_nextrcv = 0; 977 mp->mp_flags &= ~MP_PROGRESS; 978 mp->mp_proto = MPPROTO_UNUSED; 979 wakeup((caddr_t)&tp->t_canq); 980 break; 981 case EVCMD_IOCTL: 982 mp_freein(ev); 983 adjptr(mp->mp_off, MPINSET); 984 mp->mp_flags &= ~MP_IOCTL; 985 wakeup((caddr_t)&tp->t_canq); 986 break; 987 case EVCMD_WRITE: 988 /* 989 * Transmission completed, update tty 990 * state and restart output. 991 */ 992 if (ev->ev_opts != A_FLUSH) { 993 tp->t_state &= ~TS_BUSY; 994 if (tp->t_state & TS_FLUSH) 995 tp->t_state &= ~TS_FLUSH; 996 else { 997 register int cc = 0, n; 998 struct hxmtl *hxp; 999 1000 hxp = &ms->ms_hxl[port]; 1001 for (n=0;n < ev->ev_count; n++) 1002 cc += hxp->size[n]; 1003 ndflush(&tp->t_outq, cc); 1004 } 1005 } 1006 switch (ev->ev_error) { 1007 case A_SIZERR: /*# error in xmt data size */ 1008 mplog(unit, port, A_XSIZE, 0); 1009 break; 1010 case A_NXBERR: /*# no more xmt evt buffers */ 1011 mplog(unit, port, A_NOXBUF, 0); 1012 break; 1013 } 1014 mp_freein(ev); 1015 adjptr(mp->mp_off, MPINSET); 1016 mpstart(tp); 1017 break; 1018 default: 1019 mplog(unit, port, A_INVCMD, (int)ev->ev_cmd); 1020 mp_freein(ev); 1021 adjptr(mp->mp_off, MPINSET); 1022 break; 1023 } 1024 } 1025 } 1026 #undef nextevent 1027 } 1028 1029 mp_freein(ev) 1030 register struct mpevent *ev; 1031 { 1032 /* re-init all values in this entry */ 1033 ev->ev_cmd = 0; 1034 ev->ev_opts = 0; 1035 ev->ev_error = 0; 1036 ev->ev_flags = 0; 1037 ev->ev_count = 0; 1038 /* show this entry is available for use */ 1039 ev->ev_status = EVSTATUS_FREE; 1040 } 1041 1042 /* 1043 * Handler for processing received events. 1044 */ 1045 mprintr(unit, list) 1046 u_char *list; 1047 { 1048 register struct tty *tp; 1049 register struct mpport *mp; 1050 register struct mpevent *ev; 1051 struct mblok *mb; 1052 register int cc; 1053 register char *cp; 1054 struct mpsoftc *ms; 1055 caddr_t ptr; 1056 char *rcverr; 1057 int port, i; 1058 1059 ms = &mp_softc[unit]; 1060 mb = mp_softc[unit].ms_mb; 1061 for (i = 0; i < MPMAXPORT && (port = *list++) != MPPORT_EOL; i++) { 1062 tp = &mp_tty[unit*MPCHUNK + port]; 1063 mp = &mb->mb_port[port]; 1064 ev = &mp->mp_sendq[mp->mp_nextrcv]; 1065 while (ev->ev_status & EVSTATUS_DONE) { 1066 switch(ev->ev_cmd) { 1067 case EVCMD_STATUS: 1068 /* 1069 * Status change, look for carrier changes. 1070 */ 1071 switch(ev->ev_opts) { 1072 case DCDASRT: 1073 (*linesw[tp->t_line].l_modem)(tp, 1); 1074 wakeup((caddr_t)&tp->t_canq); 1075 break; 1076 case DCDDROP: 1077 (*linesw[tp->t_line].l_modem)(tp, 0); 1078 wakeup((caddr_t)&tp->t_canq); 1079 break; 1080 case NORBUF: 1081 case NOEBUF: 1082 mplog(unit, port, 1083 "out of receive events", 0); 1084 break; 1085 default: 1086 mplog(unit, port, 1087 "unexpect status command", 1088 (int)ev->ev_opts); 1089 break; 1090 } 1091 break; 1092 case EVCMD_READ: 1093 /* 1094 * Process received data. 1095 */ 1096 if ((tp->t_state & TS_ISOPEN) == 0) { 1097 wakeup((caddr_t)&tp->t_rawq); 1098 break; 1099 } 1100 if ((cc = ev->ev_count) == 0) 1101 break; 1102 cp = ms->ms_cbuf[port][mp->mp_nextrcv]; 1103 mppurge(cp, CBSIZE); 1104 while (cc-- > 0) { 1105 /* 1106 * A null character is inserted, 1107 * potentially when a break or framing 1108 * error occurs. If we're not in raw 1109 * mode, substitute the interrupt 1110 * character. 1111 */ 1112 /*** XXX - FIXUP ***/ 1113 if (*cp == 0 && 1114 (ev->ev_error == BRKASRT || 1115 ev->ev_error == FRAMERR)) 1116 if ((tp->t_flags&RAW) == 0) 1117 ; 1118 /* XXX was break */ 1119 (*linesw[tp->t_line].l_rint)(*cp++, tp); 1120 } 1121 /* setup for next read */ 1122 ptr = (caddr_t)&mp_softc[unit].ms_cbuf[port][mp->mp_nextrcv][0]; 1123 ev->ev_un.rcvblk = (u_char *)kvtophys(ptr); 1124 ev->ev_params = (caddr_t) kvtophys(ptr); 1125 switch(ev->ev_error) { 1126 case RCVDTA: 1127 /* Normal (good) rcv data do not 1128 * report the following they are 1129 * "normal" errors 1130 */ 1131 case FRAMERR: 1132 /* frame error */ 1133 case BRKASRT: 1134 /* Break condition */ 1135 case PARERR: 1136 /* parity error */ 1137 rcverr = (char *)0; 1138 break; 1139 case OVRNERR: 1140 /* Overrun error */ 1141 rcverr = "overrun error"; 1142 break; 1143 case OVFERR: 1144 /* Overflow error */ 1145 rcverr = "overflow error"; 1146 break; 1147 default: 1148 rcverr = "undefined rcv error"; 1149 break; 1150 } 1151 if (rcverr != (char *)0) 1152 mplog(unit, port, rcverr, 1153 (int)ev->ev_error); 1154 break; 1155 default: 1156 mplog(unit, port, "unexpected command", 1157 (int)ev->ev_cmd); 1158 break; 1159 } 1160 ev->ev_cmd = 0; 1161 ev->ev_opts = 0; 1162 ev->ev_error = 0; 1163 ev->ev_flags = 0; 1164 ev->ev_count = 0; 1165 ev->ev_status = EVSTATUS_GO; /* start next read */ 1166 adjptr(mp->mp_nextrcv, MPOUTSET); 1167 ev = &mp->mp_sendq[mp->mp_nextrcv]; 1168 } 1169 } 1170 } 1171 1172 /* 1173 * Log an mpcc diagnostic. 1174 */ 1175 mplog(unit, port, cp, flags) 1176 char *cp; 1177 { 1178 1179 if (flags) 1180 log(LOG_ERR, "mp%d: port%d, %s (%d)\n", 1181 unit, port, cp, flags); 1182 else 1183 log(LOG_ERR, "mp%d: port%d, %s\n", unit, port, cp); 1184 } 1185 1186 int MPHOSTINT = 1; 1187 1188 mptimeint(mb) 1189 register struct mblok *mb; 1190 { 1191 1192 mb->mb_mpintcnt = 0; 1193 mb->mb_mpintclk = (caddr_t)0; 1194 *(u_short *)mpinfo[mb->mb_unit]->ui_addr = 2; 1195 } 1196 1197 /* 1198 * Interupt mpcc 1199 */ 1200 mpintmpcc(mb, port) 1201 register struct mblok *mb; 1202 { 1203 1204 mb->mb_intr[port] |= MPSEMA_WORK; 1205 if (++mb->mb_mpintcnt == MPHOSTINT) { 1206 mb->mb_mpintcnt = 0; 1207 *(u_short *)mpinfo[mb->mb_unit]->ui_addr = 2; 1208 if (mb->mb_mpintclk) { 1209 untimeout(mptimeint, (caddr_t)mb); 1210 mb->mb_mpintclk = 0; 1211 } 1212 } else { 1213 if (mb->mb_mpintclk == 0) { 1214 timeout(mptimeint, (caddr_t)mb, 4); 1215 mb->mb_mpintclk = (caddr_t)1; 1216 } 1217 } 1218 } 1219 1220 static char *mpherrmsg[] = { 1221 "", 1222 "Bus error", /* MPBUSERR */ 1223 "Address error", /* ADDRERR */ 1224 "Undefined ecc interrupt", /* UNDECC */ 1225 "Undefined interrupt", /* UNDINT */ 1226 "Power failure occurred", /* PWRFL */ 1227 "Stray transmit done interrupt", /* NOXENTRY */ 1228 "Two fast timers on one port", /* TWOFTMRS */ 1229 "Interrupt queue full", /* INTQFULL */ 1230 "Interrupt queue ack error", /* INTQERR */ 1231 "Uncorrectable dma parity error", /* CBPERR */ 1232 "32 port ACAP failed power up", /* ACPDEAD */ 1233 }; 1234 #define NHERRS (sizeof (mpherrmsg) / sizeof (mpherrmsg[0])) 1235 1236 mperror(mb, unit) 1237 register struct mblok *mb; 1238 int unit; 1239 { 1240 register char *cp; 1241 register int i; 1242 1243 if (mb->mb_softerr) { 1244 switch (mb->mb_softerr) { 1245 case DMAPERR: /* dma parity error */ 1246 cp = "dma parity error"; 1247 break; 1248 case ECCERR: 1249 cp = "local memory ecc error"; 1250 break; 1251 default: 1252 cp = "unknown error"; 1253 break; 1254 } 1255 log(LOG_ERR, "mp%d: soft error, %s", unit, cp); 1256 mb->mb_softerr = 0; 1257 } 1258 if (mb->mb_harderr) { 1259 if (mb->mb_harderr < NHERRS) 1260 cp = mpherrmsg[mb->mb_harderr]; 1261 else 1262 cp = "unknown error"; 1263 log(LOG_ERR, "mp%d: hard error, %s", unit, cp); 1264 if (mb->mb_status == MP_OPOPEN) { 1265 for (i = 0; i < MPMAXPORT; i++) { 1266 mpcleanport(mb, i); 1267 mb->mb_proto[i] = MPPROTO_UNUSED; 1268 } 1269 } 1270 mb->mb_harderr = 0; 1271 mb->mb_status = 0; 1272 } 1273 } 1274 1275 mppurge(addr, cc) 1276 register caddr_t addr; 1277 register int cc; 1278 { 1279 1280 for (; cc >= 0; addr += NBPG, cc -= NBPG) 1281 mtpr(P1DC, addr); 1282 } 1283 1284 /* 1285 * MPCC Download Pseudo-device. 1286 */ 1287 char mpdlbuf[MPDLBUFSIZE]; 1288 int mpdlbusy; /* interlock on download buffer */ 1289 int mpdlerr; 1290 1291 mpdlopen(dev) 1292 dev_t dev; 1293 { 1294 int unit, mpu; 1295 struct vba_device *vi; 1296 1297 unit = minor(dev); 1298 mpu = MPUNIT(unit); 1299 if (mpu >= NMP || (vi = mpinfo[mpu]) == 0 || vi->ui_alive == 0) 1300 return (ENODEV); 1301 return (0); 1302 } 1303 1304 mpdlwrite(dev, uio) 1305 dev_t dev; 1306 struct uio *uio; 1307 { 1308 register struct mpsoftc *ms = &mp_softc[MPUNIT(minor(dev))]; 1309 register struct mpdl *dl; 1310 int error; 1311 1312 if (ms->ms_mb == 0 || ms->ms_mb->mb_status != MP_DLOPEN) 1313 return (EFAULT); 1314 dl = &ms->ms_mb->mb_dl; 1315 dl->mpdl_count = uio->uio_iov->iov_len; 1316 dl->mpdl_data = (caddr_t) kvtophys(mpdlbuf); 1317 if (error = uiomove(mpdlbuf, (int)dl->mpdl_count, uio)) 1318 return (error); 1319 uio->uio_resid -= dl->mpdl_count; /* set up return from write */ 1320 dl->mpdl_cmd = MPDLCMD_NORMAL; 1321 error = mpdlwait(dl); 1322 return (error); 1323 } 1324 1325 mpdlclose(dev) 1326 dev_t dev; 1327 { 1328 register struct mblok *mb = mp_softc[MPUNIT(minor(dev))].ms_mb; 1329 1330 if (mb == 0 || mb->mb_status != MP_DLDONE) { 1331 mpbogus.status = 0; 1332 if (mpbogus.mb == mpbogus.mbloks[MPUNIT(minor(dev))]) 1333 mpdlbusy--; 1334 return (EEXIST); 1335 } 1336 mb->mb_status = MP_OPOPEN; 1337 mpbogus.status = 0; 1338 /* set to dead, for board handshake */ 1339 mb->mb_hostint.imok = MPIMOK_DEAD; 1340 return (0); 1341 } 1342 1343 /* ARGSUSED */ 1344 mpdlioctl(dev, cmd, data, flag) 1345 dev_t dev; 1346 caddr_t data; 1347 { 1348 register struct mblok *mb; 1349 register struct mpdl *dl; 1350 int unit, error = 0, s, i; 1351 1352 mb = mp_softc[unit=MPUNIT(minor(dev))].ms_mb; 1353 if (mb == 0) 1354 return (EEXIST); 1355 dl = &mb->mb_dl; 1356 error = 0; 1357 switch (cmd) { 1358 case MPIOPORTMAP: 1359 bcopy(data, (caddr_t)mb->mb_proto, sizeof (mb->mb_proto)); 1360 break; 1361 case MPIOHILO: 1362 bcopy(data, (caddr_t)&mb->mb_hiport, 2*(sizeof(mb->mb_hiport))); 1363 break; 1364 case MPIOENDDL: 1365 dl->mpdl_count = 0; 1366 dl->mpdl_data = 0; 1367 dl->mpdl_cmd = MPIOENDDL&IOCPARM_MASK; 1368 error = mpdlwait(dl); 1369 mpccinit(unit); 1370 mb->mb_status = MP_DLDONE; 1371 mpdlbusy--; 1372 break; 1373 case MPIOENDCODE: 1374 dl->mpdl_count = 0; 1375 dl->mpdl_data = 0; 1376 dl->mpdl_cmd = MPIOENDCODE&IOCPARM_MASK; 1377 error = mpdlwait(dl); 1378 break; 1379 case MPIOASYNCNF: 1380 bcopy(data, mpdlbuf, sizeof (struct abdcf)); 1381 dl->mpdl_data = (caddr_t) kvtophys(mpdlbuf); 1382 dl->mpdl_count = sizeof (struct abdcf); 1383 dl->mpdl_cmd = MPIOASYNCNF&IOCPARM_MASK; 1384 error = mpdlwait(dl); 1385 break; 1386 case MPIOSTARTDL: 1387 s = spl8(); 1388 while (mpdlbusy) 1389 if (error = tsleep((caddr_t)&mpdlbusy, 1390 (PZERO+1) | PCATCH, devioc, 0)) 1391 break; 1392 splx(s); 1393 if (error) 1394 break; 1395 mpdlbusy++; 1396 /* initialize the downloading interface */ 1397 mpbogus.magic = MPMAGIC; 1398 mpbogus.mb = mpbogus.mbloks[unit]; 1399 mpbogus.status = 1; 1400 dl->mpdl_status = EVSTATUS_FREE; 1401 dl->mpdl_count = 0; 1402 dl->mpdl_cmd = 0; 1403 dl->mpdl_data = (char *) 0; 1404 mpdlerr = 0; 1405 mb->mb_magic = MPMAGIC; 1406 mb->mb_ivec = mp_softc[unit].ms_ivec+1; /* download vector */ 1407 mb->mb_status = MP_DLPEND; 1408 mb->mb_diagswitch[0] = 'A'; 1409 mb->mb_diagswitch[1] = 'P'; 1410 s = spl8(); 1411 *(u_short *)mpinfo[unit]->ui_addr = 2; 1412 error = tsleep((caddr_t)&mb->mb_status, (PZERO+1) | PCATCH, 1413 devio, 30*hz); 1414 splx(s); 1415 if (error == EWOULDBLOCK) 1416 error = ETIMEDOUT; 1417 if (error) 1418 mpbogus.status = 0; 1419 bzero((caddr_t)mb->mb_port, sizeof (mb->mb_port)); 1420 break; 1421 case MPIORESETBOARD: 1422 s = spl8(); 1423 if (mb->mb_imokclk) 1424 mb->mb_imokclk = 0; 1425 *(u_short *)mpinfo[unit]->ui_addr = 0x100; 1426 if (mb->mb_status == MP_DLOPEN || mb->mb_status == MP_DLDONE) { 1427 mpdlerr = MP_DLERROR; 1428 dl->mpdl_status = EVSTATUS_FREE; 1429 wakeup((caddr_t)&dl->mpdl_status); 1430 mpbogus.status = 0; 1431 } 1432 for (i = 0; i < MPMAXPORT; i++) { 1433 if (mb->mb_harderr || mb->mb_softerr) 1434 mperror(mb, i); 1435 mpcleanport(mb, i); 1436 mb->mb_proto[i] = MPPROTO_UNUSED; 1437 } 1438 mb->mb_status = 0; 1439 splx(s); 1440 break; 1441 default: 1442 error = EINVAL; 1443 break; 1444 } 1445 return (error); 1446 } 1447 1448 mpccinit(unit) 1449 int unit; 1450 { 1451 register struct mblok *mb = mp_softc[unit].ms_mb; 1452 register struct his *his; 1453 register int i, j; 1454 1455 mb->mb_status = MP_DLDONE; 1456 mb->mb_ivec = mp_softc[unit].ms_ivec; 1457 mb->mb_magic = MPMAGIC; 1458 /* Init host interface structure */ 1459 his = &mb->mb_hostint; 1460 his->semaphore = MPSEMA_AVAILABLE; 1461 for (i = 0; i < NMPPROTO; i++) 1462 for (j = 0; j < MPMAXPORT; j++) { 1463 his->proto[i].inbdone[j] = MPPORT_EOL; 1464 his->proto[i].outbdone[j] = MPPORT_EOL; 1465 } 1466 mb->mb_unit = unit; 1467 } 1468 1469 mpdlintr(mpcc) 1470 int mpcc; 1471 { 1472 register struct mblok *mb; 1473 register struct mpdl *dl; 1474 1475 mb = mp_softc[mpcc].ms_mb; 1476 if (mb == 0) { 1477 printf("mp%d: stray download interrupt\n", mpcc); 1478 return; 1479 } 1480 dl = &mb->mb_dl; 1481 switch (mb->mb_status) { 1482 case MP_DLOPEN: 1483 if (dl->mpdl_status != EVSTATUS_DONE) 1484 mpdlerr = MP_DLERROR; 1485 dl->mpdl_status = EVSTATUS_FREE; 1486 wakeup((caddr_t)&dl->mpdl_status); 1487 return; 1488 case MP_DLPEND: 1489 mb->mb_status = MP_DLOPEN; 1490 wakeup((caddr_t)&mb->mb_status); 1491 /* fall thru... */ 1492 case MP_DLTIME: 1493 return; 1494 case MP_OPOPEN: 1495 if (mb->mb_imokclk) 1496 mb->mb_imokclk = 0; 1497 mb->mb_nointcnt = 0; /* reset no interrupt count */ 1498 mb->mb_hostint.imok = MPIMOK_DEAD; 1499 mb->mb_imokclk = (caddr_t)1; 1500 break; 1501 default: 1502 log(LOG_ERR, "mp%d: mpdlintr, status %x\n", 1503 mpcc, mb->mb_status); 1504 break; 1505 } 1506 } 1507 1508 /* 1509 * Wait for a transfer to complete or a timeout to occur. 1510 */ 1511 mpdlwait(dl) 1512 register struct mpdl *dl; 1513 { 1514 int s, error = 0; 1515 1516 s = spl8(); 1517 dl->mpdl_status = EVSTATUS_GO; 1518 while (dl->mpdl_status != EVSTATUS_FREE) { 1519 error = tsleep((caddr_t)&dl->mpdl_status, (PZERO+1) | PCATCH, 1520 devout, 0); 1521 if (mpdlerr == MP_DLERROR) 1522 error = EIO; 1523 if (error) 1524 break; 1525 } 1526 splx(s); 1527 return (error); 1528 } 1529 #endif 1530