sci.c revision 1.7
1 /* 2 * Copyright (c) 1994 Michael L. Hitch 3 * Copyright (c) 1990 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * Van Jacobson of Lawrence Berkeley Laboratory. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the University of 20 * California, Berkeley and its contributors. 21 * 4. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * @(#)scsi.c 7.5 (Berkeley) 5/4/91 38 * $Id: sci.c,v 1.7 1994/06/22 16:20:51 chopps Exp $ 39 */ 40 41 /* 42 * AMIGA NCR 5380 scsi adaptor driver 43 */ 44 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/device.h> 48 #include <sys/buf.h> 49 #include <scsi/scsi_all.h> 50 #include <scsi/scsiconf.h> 51 #include <vm/vm.h> 52 #include <vm/vm_kern.h> 53 #include <vm/vm_page.h> 54 #include <machine/pmap.h> 55 #include <machine/cpu.h> 56 #include <amiga/amiga/device.h> 57 #include <amiga/amiga/custom.h> 58 #include <amiga/dev/scireg.h> 59 #include <amiga/dev/scivar.h> 60 61 /* 62 * SCSI delays 63 * In u-seconds, primarily for state changes on the SPC. 64 */ 65 #define SCI_CMD_WAIT 50000 /* wait per step of 'immediate' cmds */ 66 #define SCI_DATA_WAIT 50000 /* wait per data in/out step */ 67 #define SCI_INIT_WAIT 50000 /* wait per step (both) during init */ 68 69 #define b_cylin b_resid 70 71 int sciicmd __P((struct sci_softc *, int, void *, int, void *, int,u_char)); 72 int scigo __P((struct sci_softc *, struct scsi_xfer *)); 73 int scigetsense __P((struct sci_softc *, struct scsi_xfer *)); 74 int sciselectbus __P((struct sci_softc *, u_char, u_char)); 75 void sciabort __P((struct sci_softc *, char *)); 76 void scierror __P((struct sci_softc *, u_char)); 77 void scireset __P((struct sci_softc *)); 78 void scisetdelay __P((int)); 79 void sci_scsidone __P((struct sci_softc *, int)); 80 void sci_donextcmd __P((struct sci_softc *)); 81 82 int sci_cmd_wait = SCI_CMD_WAIT; 83 int sci_data_wait = SCI_DATA_WAIT; 84 int sci_init_wait = SCI_INIT_WAIT; 85 86 int sci_no_dma = 0; 87 88 #ifdef DEBUG 89 #define QPRINTF(a) if (sci_debug > 1) printf a 90 int sci_debug = 0; 91 #else 92 #define QPRINTF 93 #endif 94 95 /* 96 * default minphys routine for sci based controllers 97 */ 98 void 99 sci_minphys(bp) 100 struct buf *bp; 101 { 102 /* 103 * no max transfer at this level 104 */ 105 } 106 107 /* 108 * must be used 109 */ 110 u_int 111 sci_adinfo() 112 { 113 /* 114 * one request at a time please 115 */ 116 return(1); 117 } 118 119 /* 120 * used by specific sci controller 121 * 122 * it appears that the higher level code does nothing with LUN's 123 * so I will too. I could plug it in, however so could they 124 * in scsi_scsi_cmd(). 125 */ 126 int 127 sci_scsicmd(xs) 128 struct scsi_xfer *xs; 129 { 130 struct sci_pending *pendp; 131 struct sci_softc *dev; 132 struct scsi_link *slp; 133 int flags, s; 134 135 slp = xs->sc_link; 136 dev = slp->adapter_softc; 137 flags = xs->flags; 138 139 if (flags & SCSI_DATA_UIO) 140 panic("sci: scsi data uio requested"); 141 142 if (dev->sc_xs && flags & SCSI_NOMASK) 143 panic("sci_scsicmd: busy"); 144 145 s = splbio(); 146 pendp = &dev->sc_xsstore[slp->target][slp->lun]; 147 if (pendp->xs) { 148 splx(s); 149 return(TRY_AGAIN_LATER); 150 } 151 152 if (dev->sc_xs) { 153 pendp->xs = xs; 154 TAILQ_INSERT_TAIL(&dev->sc_xslist, pendp, link); 155 splx(s); 156 return(SUCCESSFULLY_QUEUED); 157 } 158 pendp->xs = NULL; 159 dev->sc_xs = xs; 160 splx(s); 161 162 /* 163 * nothing is pending do it now. 164 */ 165 sci_donextcmd(dev); 166 167 if (flags & SCSI_NOMASK) 168 return(COMPLETE); 169 return(SUCCESSFULLY_QUEUED); 170 } 171 172 /* 173 * entered with dev->sc_xs pointing to the next xfer to perform 174 */ 175 void 176 sci_donextcmd(dev) 177 struct sci_softc *dev; 178 { 179 struct scsi_xfer *xs; 180 struct scsi_link *slp; 181 int flags, phase, stat; 182 183 xs = dev->sc_xs; 184 slp = xs->sc_link; 185 flags = xs->flags; 186 187 if (flags & SCSI_DATA_IN) 188 phase = DATA_IN_PHASE; 189 else if (flags & SCSI_DATA_OUT) 190 phase = DATA_OUT_PHASE; 191 else 192 phase = STATUS_PHASE; 193 194 if (flags & SCSI_RESET) 195 scireset(dev); 196 197 dev->sc_stat[0] = -1; 198 if (phase == STATUS_PHASE || flags & SCSI_NOMASK) 199 stat = sciicmd(dev, slp->target, xs->cmd, xs->cmdlen, 200 xs->data, xs->datalen, phase); 201 else if (scigo(dev, xs) == 0) 202 return; 203 else 204 stat = dev->sc_stat[0]; 205 206 sci_scsidone(dev, stat); 207 } 208 209 void 210 sci_scsidone(dev, stat) 211 struct sci_softc *dev; 212 int stat; 213 { 214 struct sci_pending *pendp; 215 struct scsi_xfer *xs; 216 int s, donext; 217 218 xs = dev->sc_xs; 219 #ifdef DIAGNOSTIC 220 if (xs == NULL) 221 panic("sci_scsidone"); 222 #endif 223 /* 224 * is this right? 225 */ 226 xs->status = stat; 227 228 if (stat == 0 || xs->flags & SCSI_ERR_OK) 229 xs->resid = 0; 230 else { 231 switch(stat) { 232 case SCSI_CHECK: 233 if (stat = scigetsense(dev, xs)) 234 goto bad_sense; 235 xs->error = XS_SENSE; 236 break; 237 case SCSI_BUSY: 238 xs->error = XS_BUSY; 239 break; 240 bad_sense: 241 default: 242 xs->error = XS_DRIVER_STUFFUP; 243 QPRINTF(("sci_scsicmd() bad %x\n", stat)); 244 break; 245 } 246 } 247 xs->flags |= ITSDONE; 248 249 /* 250 * grab next command before scsi_done() 251 * this way no single device can hog scsi resources. 252 */ 253 s = splbio(); 254 pendp = dev->sc_xslist.tqh_first; 255 if (pendp == NULL) { 256 donext = 0; 257 dev->sc_xs = NULL; 258 } else { 259 donext = 1; 260 TAILQ_REMOVE(&dev->sc_xslist, pendp, link); 261 dev->sc_xs = pendp->xs; 262 pendp->xs = NULL; 263 } 264 splx(s); 265 scsi_done(xs); 266 267 if (donext) 268 sci_donextcmd(dev); 269 } 270 271 int 272 scigetsense(dev, xs) 273 struct sci_softc *dev; 274 struct scsi_xfer *xs; 275 { 276 struct scsi_sense rqs; 277 struct scsi_link *slp; 278 int stat; 279 280 slp = xs->sc_link; 281 282 rqs.op_code = REQUEST_SENSE; 283 rqs.byte2 = slp->lun << 5; 284 #ifdef not_yet 285 rqs.length = xs->req_sense_length ? xs->req_sense_length : 286 sizeof(xs->sense); 287 #else 288 rqs.length = sizeof(xs->sense); 289 #endif 290 291 rqs.unused[0] = rqs.unused[1] = rqs.control = 0; 292 293 return(sciicmd(dev, slp->target, &rqs, sizeof(rqs), &xs->sense, 294 rqs.length, DATA_IN_PHASE)); 295 } 296 297 void 298 sciabort(dev, where) 299 struct sci_softc *dev; 300 char *where; 301 { 302 printf ("%s: abort %s: csr = 0x%02x, bus = 0x%02x\n", 303 dev->sc_dev.dv_xname, where, *dev->sci_csr, *dev->sci_bus_csr); 304 305 if (dev->sc_flags & SCI_SELECTED) { 306 307 /* lets just hope it worked.. */ 308 dev->sc_flags &= ~SCI_SELECTED; 309 /* XXX */ 310 scireset (dev); 311 } 312 } 313 314 /* 315 * XXX Set/reset long delays. 316 * 317 * if delay == 0, reset default delays 318 * if delay < 0, set both delays to default long initialization values 319 * if delay > 0, set both delays to this value 320 * 321 * Used when a devices is expected to respond slowly (e.g. during 322 * initialization). 323 */ 324 void 325 scisetdelay(del) 326 int del; 327 { 328 static int saved_cmd_wait, saved_data_wait; 329 330 if (del) { 331 saved_cmd_wait = sci_cmd_wait; 332 saved_data_wait = sci_data_wait; 333 if (del > 0) 334 sci_cmd_wait = sci_data_wait = del; 335 else 336 sci_cmd_wait = sci_data_wait = sci_init_wait; 337 } else { 338 sci_cmd_wait = saved_cmd_wait; 339 sci_data_wait = saved_data_wait; 340 } 341 } 342 343 void 344 scireset(dev) 345 struct sci_softc *dev; 346 { 347 u_int i, s; 348 u_char my_id, csr; 349 350 dev->sc_flags &= ~SCI_SELECTED; 351 if (dev->sc_flags & SCI_ALIVE) 352 sciabort(dev, "reset"); 353 354 printf("%s: ", dev->sc_dev.dv_xname); 355 356 s = splbio(); 357 /* preserve our ID for now */ 358 my_id = 7; 359 360 /* 361 * Reset the chip 362 */ 363 *dev->sci_icmd = SCI_ICMD_TEST; 364 *dev->sci_icmd = SCI_ICMD_TEST | SCI_ICMD_RST; 365 delay (25); 366 *dev->sci_icmd = 0; 367 368 /* 369 * Set up various chip parameters 370 */ 371 *dev->sci_icmd = 0; 372 *dev->sci_tcmd = 0; 373 *dev->sci_sel_enb = 0; 374 375 /* anything else was zeroed by reset */ 376 377 splx (s); 378 379 printf("sci id %d\n", my_id); 380 dev->sc_flags |= SCI_ALIVE; 381 } 382 383 void 384 scierror(dev, csr) 385 struct sci_softc *dev; 386 u_char csr; 387 { 388 struct scsi_xfer *xs; 389 390 xs = dev->sc_xs; 391 392 #ifdef DIAGNOSTIC 393 if (xs == NULL) 394 panic("scierror"); 395 #endif 396 if (xs->flags & SCSI_SILENT) 397 return; 398 399 printf("%s: ", dev->sc_dev.dv_xname); 400 printf("csr == 0x%02i\n", csr); /* XXX */ 401 } 402 403 /* 404 * select the bus, return when selected or error. 405 */ 406 int 407 sciselectbus(dev, target, our_addr) 408 struct sci_softc *dev; 409 u_char target, our_addr; 410 { 411 register int timeo = 2500; 412 413 QPRINTF (("sciselectbus %d\n", target)); 414 415 /* if we're already selected, return */ 416 if (dev->sc_flags & SCI_SELECTED) /* XXXX */ 417 return 1; 418 419 if ((*dev->sci_bus_csr & (SCI_BUS_BSY|SCI_BUS_SEL)) && 420 (*dev->sci_bus_csr & (SCI_BUS_BSY|SCI_BUS_SEL)) && 421 (*dev->sci_bus_csr & (SCI_BUS_BSY|SCI_BUS_SEL))) 422 return 1; 423 424 *dev->sci_tcmd = 0; 425 *dev->sci_odata = 0x80 + (1 << target); 426 *dev->sci_icmd = SCI_ICMD_DATA|SCI_ICMD_SEL; 427 while ((*dev->sci_bus_csr & SCI_BUS_BSY) == 0) { 428 if (--timeo > 0) { 429 delay(100); 430 } else { 431 break; 432 } 433 } 434 if (timeo) { 435 *dev->sci_icmd = 0; 436 dev->sc_flags |= SCI_SELECTED; 437 return (0); 438 } 439 *dev->sci_icmd = 0; 440 return (1); 441 } 442 443 int 444 sci_ixfer_out(dev, len, buf, phase) 445 register struct sci_softc *dev; 446 int len; 447 register u_char *buf; 448 int phase; 449 { 450 register int wait = sci_data_wait; 451 u_char csr; 452 453 QPRINTF(("sci_ixfer_out {%d} %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 454 len, buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], 455 buf[6], buf[7], buf[8], buf[9])); 456 457 *dev->sci_tcmd = phase; 458 *dev->sci_icmd = SCI_ICMD_DATA; 459 for (;len > 0; len--) { 460 csr = *dev->sci_bus_csr; 461 while (!(csr & SCI_BUS_REQ)) { 462 if ((csr & SCI_BUS_BSY) == 0 || --wait < 0) { 463 #ifdef DEBUG 464 if (sci_debug) 465 printf("sci_ixfer_out fail: l%d i%x w%d\n", 466 len, csr, wait); 467 #endif 468 return (len); 469 } 470 delay(1); 471 csr = *dev->sci_bus_csr; 472 } 473 474 if (!(*dev->sci_csr & SCI_CSR_PHASE_MATCH)) 475 break; 476 *dev->sci_odata = *buf; 477 *dev->sci_icmd = SCI_ICMD_DATA|SCI_ICMD_ACK; 478 buf++; 479 while (*dev->sci_bus_csr & SCI_BUS_REQ); 480 *dev->sci_icmd = SCI_ICMD_DATA; 481 } 482 483 QPRINTF(("sci_ixfer_out done\n")); 484 return (0); 485 } 486 487 void 488 sci_ixfer_in(dev, len, buf, phase) 489 struct sci_softc *dev; 490 int len; 491 register u_char *buf; 492 int phase; 493 { 494 int wait = sci_data_wait; 495 u_char *obp = buf; 496 u_char csr; 497 volatile register u_char *sci_bus_csr = dev->sci_bus_csr; 498 volatile register u_char *sci_data = dev->sci_data; 499 volatile register u_char *sci_icmd = dev->sci_icmd; 500 501 csr = *sci_bus_csr; 502 503 QPRINTF(("sci_ixfer_in %d, csr=%02x\n", len, csr)); 504 505 *dev->sci_tcmd = phase; 506 *sci_icmd = 0; 507 for (;len > 0; len--) { 508 csr = *sci_bus_csr; 509 while (!(csr & SCI_BUS_REQ)) { 510 if (!(csr & SCI_BUS_BSY) || --wait < 0) { 511 #ifdef DEBUG 512 if (sci_debug) 513 printf("sci_ixfer_in fail: l%d i%x w%d\n", 514 len, csr, wait); 515 #endif 516 return; 517 } 518 519 delay(1); 520 csr = *sci_bus_csr; 521 } 522 523 if (!(*dev->sci_csr & SCI_CSR_PHASE_MATCH)) 524 break; 525 *buf = *sci_data; 526 *sci_icmd = SCI_ICMD_ACK; 527 buf++; 528 while (*sci_bus_csr & SCI_BUS_REQ); 529 *sci_icmd = 0; 530 } 531 532 QPRINTF(("sci_ixfer_in {%d} %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 533 len, obp[0], obp[1], obp[2], obp[3], obp[4], obp[5], 534 obp[6], obp[7], obp[8], obp[9])); 535 } 536 537 /* 538 * SCSI 'immediate' command: issue a command to some SCSI device 539 * and get back an 'immediate' response (i.e., do programmed xfer 540 * to get the response data). 'cbuf' is a buffer containing a scsi 541 * command of length clen bytes. 'buf' is a buffer of length 'len' 542 * bytes for data. The transfer direction is determined by the device 543 * (i.e., by the scsi bus data xfer phase). If 'len' is zero, the 544 * command must supply no data. 'xferphase' is the bus phase the 545 * caller expects to happen after the command is issued. It should 546 * be one of DATA_IN_PHASE, DATA_OUT_PHASE or STATUS_PHASE. 547 */ 548 int 549 sciicmd(dev, target, cbuf, clen, buf, len, xferphase) 550 struct sci_softc *dev; 551 void *cbuf, *buf; 552 int clen, len; 553 u_char xferphase; 554 { 555 u_char phase, csr, asr; 556 register int wait; 557 558 /* select the SCSI bus (it's an error if bus isn't free) */ 559 if (sciselectbus (dev, target, dev->sc_scsi_addr)) 560 return -1; 561 /* 562 * Wait for a phase change (or error) then let the device 563 * sequence us through the various SCSI phases. 564 */ 565 dev->sc_stat[0] = 0xff; 566 dev->sc_msg[0] = 0xff; 567 phase = CMD_PHASE; 568 while (1) { 569 wait = sci_cmd_wait; 570 571 while ((*dev->sci_bus_csr & (SCI_BUS_REQ|SCI_BUS_BSY)) == SCI_BUS_BSY); 572 573 QPRINTF((">CSR:%02x<", *dev->sci_bus_csr)); 574 if ((*dev->sci_bus_csr & SCI_BUS_REQ) == 0) { 575 return -1; 576 } 577 phase = SCI_PHASE(*dev->sci_bus_csr); 578 579 switch (phase) { 580 case CMD_PHASE: 581 if (sci_ixfer_out (dev, clen, cbuf, phase)) 582 goto abort; 583 phase = xferphase; 584 break; 585 586 case DATA_IN_PHASE: 587 if (len <= 0) 588 goto abort; 589 wait = sci_data_wait; 590 sci_ixfer_in (dev, len, buf, phase); 591 phase = STATUS_PHASE; 592 break; 593 594 case DATA_OUT_PHASE: 595 if (len <= 0) 596 goto abort; 597 wait = sci_data_wait; 598 if (sci_ixfer_out (dev, len, buf, phase)) 599 goto abort; 600 phase = STATUS_PHASE; 601 break; 602 603 case MESG_IN_PHASE: 604 dev->sc_msg[0] = 0xff; 605 sci_ixfer_in (dev, 1, dev->sc_msg,phase); 606 dev->sc_flags &= ~SCI_SELECTED; 607 while (*dev->sci_bus_csr & SCI_BUS_BSY); 608 goto out; 609 break; 610 611 case MESG_OUT_PHASE: 612 phase = STATUS_PHASE; 613 break; 614 615 case STATUS_PHASE: 616 sci_ixfer_in (dev, 1, dev->sc_stat, phase); 617 phase = MESG_IN_PHASE; 618 break; 619 620 case BUS_FREE_PHASE: 621 goto out; 622 623 default: 624 printf("sci: unexpected phase %d in icmd from %d\n", 625 phase, target); 626 goto abort; 627 } 628 #if 0 629 if (wait <= 0) 630 goto abort; 631 #endif 632 } 633 634 abort: 635 sciabort(dev, "icmd"); 636 out: 637 QPRINTF(("=STS:%02x=", dev->sc_stat[0])); 638 return (dev->sc_stat[0]); 639 } 640 641 int 642 scigo(dev, xs) 643 struct sci_softc *dev; 644 struct scsi_xfer *xs; 645 { 646 int i, count, target; 647 u_char phase, csr, asr, cmd, *addr; 648 int wait; 649 650 target = xs->sc_link->target; 651 count = xs->datalen; 652 addr = xs->data; 653 654 if (sci_no_dma) { 655 sciicmd (dev, target, (u_char *) xs->cmd, xs->cmdlen, 656 addr, count, 657 xs->flags & SCSI_DATA_IN ? DATA_IN_PHASE : DATA_OUT_PHASE); 658 659 return (1); 660 } 661 662 /* select the SCSI bus (it's an error if bus isn't free) */ 663 if (sciselectbus (dev, target, dev->sc_scsi_addr)) 664 return -1; 665 /* 666 * Wait for a phase change (or error) then let the device 667 * sequence us through the various SCSI phases. 668 */ 669 dev->sc_stat[0] = 0xff; 670 dev->sc_msg[0] = 0xff; 671 phase = CMD_PHASE; 672 while (1) { 673 while ((*dev->sci_bus_csr & (SCI_BUS_REQ|SCI_BUS_BSY)) == 674 SCI_BUS_BSY); 675 676 QPRINTF((">CSR:%02x<", *dev->sci_bus_csr)); 677 if ((*dev->sci_bus_csr & SCI_BUS_REQ) == 0) { 678 goto abort; 679 } 680 phase = SCI_PHASE(*dev->sci_bus_csr); 681 682 switch (phase) { 683 case CMD_PHASE: 684 if (sci_ixfer_out (dev, xs->cmdlen, xs->cmd, phase)) 685 goto abort; 686 phase = xs->flags & SCSI_DATA_IN ? DATA_IN_PHASE : DATA_OUT_PHASE; 687 break; 688 689 case DATA_IN_PHASE: 690 if (count <= 0) 691 goto abort; 692 /* XXX use psuedo DMA if available */ 693 if (count >= 128 && dev->dma_xfer_in) 694 (*dev->dma_xfer_in)(dev, count, addr, phase); 695 else 696 sci_ixfer_in (dev, count, addr, phase); 697 phase = STATUS_PHASE; 698 break; 699 700 case DATA_OUT_PHASE: 701 if (count <= 0) 702 goto abort; 703 /* XXX use psuedo DMA if available */ 704 if (count >= 128 && dev->dma_xfer_out) 705 (*dev->dma_xfer_out)(dev, count, addr, phase); 706 else 707 if (sci_ixfer_out (dev, count, addr, phase)) 708 goto abort; 709 phase = STATUS_PHASE; 710 break; 711 712 case MESG_IN_PHASE: 713 dev->sc_msg[0] = 0xff; 714 sci_ixfer_in (dev, 1, dev->sc_msg,phase); 715 dev->sc_flags &= ~SCI_SELECTED; 716 while (*dev->sci_bus_csr & SCI_BUS_BSY); 717 goto out; 718 break; 719 720 case MESG_OUT_PHASE: 721 phase = STATUS_PHASE; 722 break; 723 724 case STATUS_PHASE: 725 sci_ixfer_in (dev, 1, dev->sc_stat, phase); 726 phase = MESG_IN_PHASE; 727 break; 728 729 case BUS_FREE_PHASE: 730 goto out; 731 732 default: 733 printf("sci: unexpected phase %d in icmd from %d\n", 734 phase, target); 735 goto abort; 736 } 737 } 738 739 abort: 740 sciabort(dev, "go"); 741 out: 742 QPRINTF(("=STS:%02x=", dev->sc_stat[0])); 743 return (1); 744 } 745
Indexes created Tue Sep 23 02:09:52 GMT 2025