1 /* $NetBSD: siop2.c,v 1.39 2010/05/22 09:58:53 phx Exp $ */ 2 3 /* 4 * Copyright (c) 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Van Jacobson of Lawrence Berkeley Laboratory. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)siop.c 7.5 (Berkeley) 5/4/91 35 */ 36 37 /* 38 * Copyright (c) 1994,1998 Michael L. Hitch 39 * 40 * This code is derived from software contributed to Berkeley by 41 * Van Jacobson of Lawrence Berkeley Laboratory. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 53 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 54 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 55 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 56 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 57 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 61 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 62 * 63 * @(#)siop.c 7.5 (Berkeley) 5/4/91 64 */ 65 66 /* 67 * AMIGA 53C720/770 scsi adaptor driver 68 */ 69 70 #include "opt_ddb.h" 71 72 #include <sys/cdefs.h> 73 __KERNEL_RCSID(0, "$NetBSD: siop2.c,v 1.39 2010/05/22 09:58:53 phx Exp $"); 74 75 #include <sys/param.h> 76 #include <sys/systm.h> 77 #include <sys/callout.h> 78 #include <sys/kernel.h> 79 #include <sys/device.h> 80 #include <sys/disklabel.h> 81 #include <sys/buf.h> 82 #include <sys/malloc.h> 83 84 #include <uvm/uvm_extern.h> 85 86 #include <dev/scsipi/scsi_all.h> 87 #include <dev/scsipi/scsipi_all.h> 88 #include <dev/scsipi/scsiconf.h> 89 #include <machine/cpu.h> 90 #ifdef __m68k__ 91 #include <m68k/include/cacheops.h> 92 #else 93 #define DCIAS(pa) dma_cachectl((void *)(pa), 1) 94 #endif 95 #include <amiga/amiga/custom.h> 96 #include <amiga/amiga/device.h> 97 #include <amiga/amiga/isr.h> 98 99 #define ARCH_720 100 101 #include <amiga/dev/siopreg.h> 102 #include <amiga/dev/siopvar.h> 103 104 /* 105 * SCSI delays 106 * In u-seconds, primarily for state changes on the SPC. 107 */ 108 #define SCSI_CMD_WAIT 500000 /* wait per step of 'immediate' cmds */ 109 #define SCSI_DATA_WAIT 500000 /* wait per data in/out step */ 110 #define SCSI_INIT_WAIT 500000 /* wait per step (both) during init */ 111 112 void siopng_select(struct siop_softc *); 113 void siopngabort(struct siop_softc *, siop_regmap_p, const char *); 114 void siopngerror(struct siop_softc *, siop_regmap_p, u_char); 115 int siopng_checkintr(struct siop_softc *, u_char, u_char, u_short, int *); 116 void siopngreset(struct siop_softc *); 117 void siopngsetdelay(int); 118 void siopng_scsidone(struct siop_acb *, int); 119 void siopng_timeout(void *); 120 void siopng_sched(struct siop_softc *); 121 void siopng_poll(struct siop_softc *, struct siop_acb *); 122 void siopngintr(struct siop_softc *); 123 void scsi_period_to_siopng(struct siop_softc *, int); 124 void siopng_start(struct siop_softc *, int, int, u_char *, int, u_char *, int); 125 void siopng_dump_acb(struct siop_acb *); 126 127 /* 53C720/770 script */ 128 129 #include <amiga/dev/siop2_script.out> 130 131 /* default to not inhibit sync negotiation on any drive */ 132 u_char siopng_inhibit_sync[16] = { 133 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 134 }; /* initialize, so patchable */ 135 136 u_char siopng_inhibit_wide[16] = { 137 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 138 }; /* initialize, so patchable */ 139 140 u_char siopng_allow_disc[16] = { 141 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 142 }; 143 144 int siopng_no_dma = 0; 145 146 int siopng_reset_delay = 250; /* delay after reset, in milleseconds */ 147 148 int siopng_cmd_wait = SCSI_CMD_WAIT; 149 int siopng_data_wait = SCSI_DATA_WAIT; 150 int siopng_init_wait = SCSI_INIT_WAIT; 151 152 /*#define DEBUG_SYNC*/ 153 154 #ifdef DEBUG 155 /* 156 * 0x01 - full debug 157 * 0x02 - DMA chaining 158 * 0x04 - siopngintr 159 * 0x08 - phase mismatch 160 * 0x10 - <not used> 161 * 0x20 - panic on unhandled exceptions 162 * 0x100 - disconnect/reselect 163 */ 164 int siopng_debug = 0; 165 int siopngsync_debug = 0; 166 int siopngdma_hits = 0; 167 int siopngdma_misses = 0; 168 int siopngchain_ints = 0; 169 int siopngstarts = 0; 170 int siopngints = 0; 171 int siopngphmm = 0; 172 #define SIOP_TRACE_SIZE 128 173 #define SIOP_TRACE(a,b,c,d) \ 174 siopng_trbuf[siopng_trix] = (a); \ 175 siopng_trbuf[siopng_trix+1] = (b); \ 176 siopng_trbuf[siopng_trix+2] = (c); \ 177 siopng_trbuf[siopng_trix+3] = (d); \ 178 siopng_trix = (siopng_trix + 4) & (SIOP_TRACE_SIZE - 1); 179 u_char siopng_trbuf[SIOP_TRACE_SIZE]; 180 int siopng_trix; 181 void siopng_dump(struct siop_softc *); 182 void siopng_dump_trace(void); 183 #else 184 #define SIOP_TRACE(a,b,c,d) 185 #endif 186 187 188 static const char *siopng_chips[] = { 189 "720", "720SE", "770", "0x3", 190 "810A", "0x5", "0x6", "0x7", 191 "0x8", "0x9", "0xA", "0xB", 192 "0xC", "0xD", "0xE", "0xF", 193 }; 194 195 /* 196 * default minphys routine for siopng based controllers 197 */ 198 void 199 siopng_minphys(struct buf *bp) 200 { 201 202 /* 203 * No max transfer at this level. 204 */ 205 minphys(bp); 206 } 207 208 /* 209 * used by specific siopng controller 210 * 211 */ 212 void 213 siopng_scsipi_request(struct scsipi_channel *chan, scsipi_adapter_req_t req, 214 void *arg) 215 { 216 struct scsipi_xfer *xs; 217 struct scsipi_periph *periph; 218 struct siop_acb *acb; 219 struct siop_softc *sc = (void *)chan->chan_adapter->adapt_dev; 220 int flags, s; 221 222 switch (req) { 223 case ADAPTER_REQ_RUN_XFER: 224 xs = arg; 225 periph = xs->xs_periph; 226 flags = xs->xs_control; 227 228 /* XXXX ?? */ 229 if (flags & XS_CTL_DATA_UIO) 230 panic("siopng: scsi data uio requested"); 231 232 /* XXXX ?? */ 233 if (sc->sc_nexus && flags & XS_CTL_POLL) 234 /* panic("siopng_scsicmd: busy");*/ 235 printf("siopng_scsicmd: busy\n"); 236 237 s = splbio(); 238 acb = sc->free_list.tqh_first; 239 if (acb) { 240 TAILQ_REMOVE(&sc->free_list, acb, chain); 241 } 242 splx(s); 243 244 #ifdef DIAGNOSTIC 245 /* 246 * This should never happen as we track the resources 247 * in the mid-layer. 248 */ 249 if (acb == NULL) { 250 scsipi_printaddr(periph); 251 printf("unable to allocate acb\n"); 252 panic("siopng_scsipi_request"); 253 } 254 #endif 255 acb->flags = ACB_ACTIVE; 256 acb->xs = xs; 257 memcpy(&acb->cmd, xs->cmd, xs->cmdlen); 258 acb->clen = xs->cmdlen; 259 acb->daddr = xs->data; 260 acb->dleft = xs->datalen; 261 262 s = splbio(); 263 TAILQ_INSERT_TAIL(&sc->ready_list, acb, chain); 264 265 if (sc->sc_nexus == NULL) 266 siopng_sched(sc); 267 268 splx(s); 269 270 if (flags & XS_CTL_POLL || siopng_no_dma) 271 siopng_poll(sc, acb); 272 return; 273 274 case ADAPTER_REQ_GROW_RESOURCES: 275 return; 276 277 case ADAPTER_REQ_SET_XFER_MODE: 278 return; 279 } 280 } 281 282 void 283 siopng_poll(struct siop_softc *sc, struct siop_acb *acb) 284 { 285 siop_regmap_p rp = sc->sc_siopp; 286 struct scsipi_xfer *xs = acb->xs; 287 int i; 288 int status; 289 u_char istat; 290 u_char dstat; 291 u_short sist; 292 int s; 293 int to; 294 295 s = splbio(); 296 to = xs->timeout / 1000; 297 if (sc->nexus_list.tqh_first) 298 printf("%s: siopng_poll called with disconnected device\n", 299 sc->sc_dev.dv_xname); 300 for (;;) { 301 /* use cmd_wait values? */ 302 i = 50000; 303 /* XXX spl0(); */ 304 while (((istat = rp->siop_istat) & 305 (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) { 306 if (--i <= 0) { 307 #ifdef DEBUG 308 printf ("waiting: tgt %d cmd %02x sbcl %02x istat %02x sbdl %04x\n dsp %lx (+%lx) dcmd %lx ds %p timeout %d\n", 309 xs->xs_periph->periph_target, acb->cmd.opcode, 310 rp->siop_sbcl, istat, rp->siop_sbdl, rp->siop_dsp, 311 rp->siop_dsp - sc->sc_scriptspa, 312 *((volatile long *)&rp->siop_dcmd), &acb->ds, acb->xs->timeout); 313 #endif 314 i = 50000; 315 --to; 316 if (to <= 0) { 317 siopngreset(sc); 318 return; 319 } 320 } 321 delay(20); 322 } 323 sist = rp->siop_sist; 324 dstat = rp->siop_dstat; 325 if (siopng_checkintr(sc, istat, dstat, sist, &status)) { 326 if (acb != sc->sc_nexus) 327 printf("%s: siopng_poll disconnected device completed\n", 328 sc->sc_dev.dv_xname); 329 else if ((sc->sc_flags & SIOP_INTDEFER) == 0) { 330 sc->sc_flags &= ~SIOP_INTSOFF; 331 rp->siop_sien = sc->sc_sien; 332 rp->siop_dien = sc->sc_dien; 333 } 334 siopng_scsidone(sc->sc_nexus, status); 335 } 336 if (xs->xs_status & XS_STS_DONE) 337 break; 338 } 339 splx(s); 340 } 341 342 /* 343 * start next command that's ready 344 */ 345 void 346 siopng_sched(struct siop_softc *sc) 347 { 348 struct scsipi_periph *periph; 349 struct siop_acb *acb; 350 int i; 351 352 #ifdef DEBUG 353 if (sc->sc_nexus) { 354 printf("%s: siopng_sched- nexus %p/%d ready %p/%d\n", 355 sc->sc_dev.dv_xname, sc->sc_nexus, 356 sc->sc_nexus->xs->xs_periph->periph_target, 357 sc->ready_list.tqh_first, 358 sc->ready_list.tqh_first->xs->xs_periph->periph_target); 359 return; 360 } 361 #endif 362 for (acb = sc->ready_list.tqh_first; acb; acb = acb->chain.tqe_next) { 363 periph = acb->xs->xs_periph; 364 i = periph->periph_target; 365 if(!(sc->sc_tinfo[i].lubusy & (1 << periph->periph_lun))) { 366 struct siop_tinfo *ti = &sc->sc_tinfo[i]; 367 368 TAILQ_REMOVE(&sc->ready_list, acb, chain); 369 sc->sc_nexus = acb; 370 periph = acb->xs->xs_periph; 371 ti = &sc->sc_tinfo[periph->periph_target]; 372 ti->lubusy |= (1 << periph->periph_lun); 373 break; 374 } 375 } 376 377 if (acb == NULL) { 378 #ifdef DEBUGXXX 379 printf("%s: siopng_sched didn't find ready command\n", 380 sc->sc_dev.dv_xname); 381 #endif 382 return; 383 } 384 385 if (acb->xs->xs_control & XS_CTL_RESET) 386 siopngreset(sc); 387 388 #if 0 389 acb->cmd.bytes[0] |= periph->periph_lun << 5; /* XXXX */ 390 #endif 391 ++sc->sc_active; 392 siopng_select(sc); 393 } 394 395 void 396 siopng_scsidone(struct siop_acb *acb, int stat) 397 { 398 struct scsipi_xfer *xs; 399 struct scsipi_periph *periph; 400 struct siop_softc *sc; 401 int dosched = 0; 402 403 if (acb == NULL || (xs = acb->xs) == NULL) { 404 #ifdef DIAGNOSTIC 405 printf("siopng_scsidone: NULL acb or scsipi_xfer\n"); 406 #if defined(DEBUG) && defined(DDB) 407 Debugger(); 408 #endif 409 #endif 410 return; 411 } 412 413 callout_stop(&xs->xs_callout); 414 415 periph = xs->xs_periph; 416 sc = (void *)periph->periph_channel->chan_adapter->adapt_dev; 417 418 xs->status = stat; 419 xs->resid = 0; /* XXXX */ 420 421 if (xs->error == XS_NOERROR) { 422 if (stat == SCSI_CHECK || stat == SCSI_BUSY) 423 xs->error = XS_BUSY; 424 } 425 426 /* 427 * Remove the ACB from whatever queue it's on. We have to do a bit of 428 * a hack to figure out which queue it's on. Note that it is *not* 429 * necessary to cdr down the ready queue, but we must cdr down the 430 * nexus queue and see if it's there, so we can mark the unit as no 431 * longer busy. This code is sickening, but it works. 432 */ 433 if (acb == sc->sc_nexus) { 434 sc->sc_nexus = NULL; 435 sc->sc_tinfo[periph->periph_target].lubusy &= 436 ~(1<<periph->periph_lun); 437 if (sc->ready_list.tqh_first) 438 dosched = 1; /* start next command */ 439 --sc->sc_active; 440 SIOP_TRACE('d','a',stat,0) 441 } else if (sc->ready_list.tqh_last == &acb->chain.tqe_next) { 442 TAILQ_REMOVE(&sc->ready_list, acb, chain); 443 SIOP_TRACE('d','r',stat,0) 444 } else { 445 register struct siop_acb *acb2; 446 for (acb2 = sc->nexus_list.tqh_first; acb2; 447 acb2 = acb2->chain.tqe_next) 448 if (acb2 == acb) { 449 TAILQ_REMOVE(&sc->nexus_list, acb, chain); 450 sc->sc_tinfo[periph->periph_target].lubusy 451 &= ~(1<<periph->periph_lun); 452 --sc->sc_active; 453 break; 454 } 455 if (acb2) 456 ; 457 else if (acb->chain.tqe_next) { 458 TAILQ_REMOVE(&sc->ready_list, acb, chain); 459 --sc->sc_active; 460 } else { 461 printf("%s: can't find matching acb\n", 462 sc->sc_dev.dv_xname); 463 #ifdef DDB 464 /* Debugger(); */ 465 #endif 466 } 467 SIOP_TRACE('d','n',stat,0); 468 } 469 /* Put it on the free list. */ 470 acb->flags = ACB_FREE; 471 TAILQ_INSERT_HEAD(&sc->free_list, acb, chain); 472 473 sc->sc_tinfo[periph->periph_target].cmds++; 474 475 scsipi_done(xs); 476 477 if (dosched && sc->sc_nexus == NULL) 478 siopng_sched(sc); 479 } 480 481 void 482 siopngabort(register struct siop_softc *sc, siop_regmap_p rp, const char *where) 483 { 484 #ifdef fix_this 485 int i; 486 #endif 487 488 printf ("%s: abort %s: dstat %02x, istat %02x sist %04x sien %04x sbcl %02x\n", 489 sc->sc_dev.dv_xname, 490 where, rp->siop_dstat, rp->siop_istat, rp->siop_sist, 491 rp->siop_sien, rp->siop_sbcl); 492 siopng_dump_registers(sc); 493 494 if (sc->sc_active > 0) { 495 #ifdef TODO 496 SET_SBIC_cmd (rp, SBIC_CMD_ABORT); 497 WAIT_CIP (rp); 498 499 GET_SBIC_asr (rp, asr); 500 if (asr & (SBIC_ASR_BSY|SBIC_ASR_LCI)) 501 { 502 /* ok, get more drastic.. */ 503 504 SET_SBIC_cmd (rp, SBIC_CMD_RESET); 505 delay(25); 506 SBIC_WAIT(rp, SBIC_ASR_INT, 0); 507 GET_SBIC_csr (rp, csr); /* clears interrupt also */ 508 509 return; 510 } 511 512 do 513 { 514 SBIC_WAIT (rp, SBIC_ASR_INT, 0); 515 GET_SBIC_csr (rp, csr); 516 } 517 while ((csr != SBIC_CSR_DISC) && (csr != SBIC_CSR_DISC_1) 518 && (csr != SBIC_CSR_CMD_INVALID)); 519 #endif 520 521 /* lets just hope it worked.. */ 522 #ifdef fix_this 523 for (i = 0; i < 2; ++i) { 524 if (sc->sc_iob[i].sc_xs && &sc->sc_iob[i] != 525 sc->sc_cur) { 526 printf ("siopngabort: cleanup!\n"); 527 sc->sc_iob[i].sc_xs = NULL; 528 } 529 } 530 #endif /* fix_this */ 531 /* sc->sc_active = 0; */ 532 } 533 } 534 535 void 536 siopnginitialize(struct siop_softc *sc) 537 { 538 int i; 539 u_int inhibit_sync; 540 extern u_long scsi_nosync; 541 extern int shift_nosync; 542 543 /* 544 * Need to check that scripts is on a long word boundary 545 * Also should verify that dev doesn't span non-contiguous 546 * physical pages. 547 */ 548 sc->sc_scriptspa = kvtop((void *)__UNCONST(siopng_scripts)); 549 550 /* 551 * malloc sc_acb to ensure that DS is on a long word boundary. 552 */ 553 554 sc->sc_acb = malloc(sizeof(struct siop_acb) * SIOP_NACB, 555 M_DEVBUF, M_NOWAIT); 556 if (sc->sc_acb == NULL) 557 panic("siopnginitialize: ACB malloc failed!"); 558 559 sc->sc_tcp[1] = 1000 / sc->sc_clock_freq; 560 sc->sc_tcp[2] = 1500 / sc->sc_clock_freq; 561 sc->sc_tcp[3] = 2000 / sc->sc_clock_freq; 562 sc->sc_minsync = sc->sc_tcp[1]; /* in 4ns units */ 563 if (sc->sc_minsync < 25) 564 sc->sc_minsync = 25; 565 sc->sc_minsync >>= 1; /* Using clock doubler, allow Ultra */ 566 if (sc->sc_clock_freq <= 25) { 567 sc->sc_dcntl |= 0x80; /* SCLK/1 */ 568 sc->sc_tcp[0] = sc->sc_tcp[1]; 569 } else if (sc->sc_clock_freq <= 37) { 570 sc->sc_dcntl |= 0x40; /* SCLK/1.5 */ 571 sc->sc_tcp[0] = sc->sc_tcp[2]; 572 } else if (sc->sc_clock_freq <= 50) { 573 sc->sc_dcntl |= 0x00; /* SCLK/2 */ 574 sc->sc_tcp[0] = sc->sc_tcp[3]; 575 } else { 576 sc->sc_dcntl |= 0xc0; /* SCLK/3 */ 577 sc->sc_tcp[0] = 3000 / sc->sc_clock_freq; 578 } 579 580 if (scsi_nosync) { 581 inhibit_sync = (scsi_nosync >> shift_nosync) & 0xffff; 582 shift_nosync += 16; /* XXX maxtarget */ 583 #ifdef DEBUG 584 if (inhibit_sync) 585 printf("%s: Inhibiting synchronous transfer %02x\n", 586 sc->sc_dev.dv_xname, inhibit_sync); 587 #endif 588 for (i = 0; i < 16; ++i) /* XXX maxtarget */ 589 if (inhibit_sync & (1 << i)) 590 siopng_inhibit_sync[i] = 1; 591 } 592 593 siopngreset (sc); 594 } 595 596 void 597 siopng_timeout(void *arg) 598 { 599 struct siop_acb *acb; 600 struct scsipi_periph *periph; 601 struct siop_softc *sc; 602 int s; 603 604 acb = arg; 605 periph = acb->xs->xs_periph; 606 sc = device_private(periph->periph_channel->chan_adapter->adapt_dev); 607 scsipi_printaddr(periph); 608 printf("timed out\n"); 609 610 s = splbio(); 611 612 acb->xs->error = XS_TIMEOUT; 613 siopngreset(sc); 614 615 splx(s); 616 } 617 618 void 619 siopngreset(struct siop_softc *sc) 620 { 621 siop_regmap_p rp; 622 u_int i, s; 623 u_short dummy; 624 struct siop_acb *acb; 625 626 rp = sc->sc_siopp; 627 628 if (sc->sc_flags & SIOP_ALIVE) 629 siopngabort(sc, rp, "reset"); 630 631 printf("%s: ", sc->sc_dev.dv_xname); /* XXXX */ 632 633 s = splbio(); 634 635 /* 636 * Reset the chip 637 * XXX - is this really needed? 638 */ 639 rp->siop_istat |= SIOP_ISTAT_ABRT; /* abort current script */ 640 rp->siop_istat |= SIOP_ISTAT_RST; /* reset chip */ 641 rp->siop_istat &= ~SIOP_ISTAT_RST; 642 /* 643 * Reset SCSI bus (do we really want this?) 644 */ 645 rp->siop_sien = 0; 646 rp->siop_scntl1 |= SIOP_SCNTL1_RST; 647 delay(1); 648 rp->siop_scntl1 &= ~SIOP_SCNTL1_RST; 649 650 /* 651 * Set up various chip parameters 652 */ 653 rp->siop_stest1 |= SIOP_STEST1_DBLEN; /* SCLK doubler enable */ 654 delay(20); 655 rp->siop_stest3 |= SIOP_STEST3_HSC; /* Halt SCSI clock */ 656 rp->siop_scntl3 = 0x15; /* SCF/CCF*/ 657 rp->siop_stest1 |= SIOP_STEST1_DBLSEL; /* SCLK doubler select */ 658 rp->siop_stest3 &= ~SIOP_STEST3_HSC; /* Clear Halt SCSI clock */ 659 rp->siop_scntl0 = SIOP_ARB_FULL | /*SIOP_SCNTL0_EPC |*/ SIOP_SCNTL0_EPG; 660 rp->siop_dcntl = sc->sc_dcntl; 661 rp->siop_dmode = 0xc0; /* XXX burst length */ 662 rp->siop_sien = 0x00; /* don't enable interrupts yet */ 663 rp->siop_dien = 0x00; /* don't enable interrupts yet */ 664 rp->siop_scid = sc->sc_channel.chan_id | 665 SIOP_SCID_RRE | SIOP_SCID_SRE; 666 rp->siop_respid = 1 << sc->sc_channel.chan_id; 667 rp->siop_dwt = 0x00; 668 rp->siop_stime0 = 0x0c; /* XXXXX check */ 669 670 /* will need to re-negotiate sync xfers */ 671 memset(&sc->sc_sync, 0, sizeof (sc->sc_sync)); 672 673 i = rp->siop_istat; 674 if (i & SIOP_ISTAT_SIP) 675 dummy = rp->siop_sist; 676 if (i & SIOP_ISTAT_DIP) 677 dummy = rp->siop_dstat; 678 679 splx (s); 680 681 delay (siopng_reset_delay * 1000); 682 683 /* 684 * is lower half unterminated? 685 */ 686 if ((rp->siop_sbdl & 0x00ff) == 0x00ff) { 687 printf(" no SCSI termination, host adapter deactivated.\n"); 688 sc->sc_channel.chan_ntargets = 0; /* XXX */ 689 sc->sc_flags &= ~(SIOP_ALIVE|SIOP_INTDEFER|SIOP_INTSOFF); 690 /* disable SCSI and DMA interrupts */ 691 sc->sc_sien = 0; 692 sc->sc_dien = 0; 693 rp->siop_sien = sc->sc_sien; 694 rp->siop_dien = sc->sc_dien; 695 696 return; 697 } 698 699 /* 700 * Check if upper half of SCSI bus is unterminated, and disallow 701 * disconnections if it appears to be unterminated. 702 */ 703 if ((rp->siop_sbdl & 0xff00) == 0xff00) { 704 printf(" NO WIDE TERM"); 705 /* XXX need to restrict maximum target ID as well? */ 706 sc->sc_channel.chan_ntargets = 8; 707 for (i = 0; i < 16; ++i) { 708 siopng_allow_disc[i] = 0; 709 siopng_inhibit_wide[i] |= 0x80; 710 } 711 } 712 713 printf("siopng type %s id %d reset V%d\n", 714 siopng_chips[rp->siop_macntl>>4], 715 sc->sc_channel.chan_ntargets, 716 rp->siop_ctest3 >> 4); 717 718 if ((sc->sc_flags & SIOP_ALIVE) == 0) { 719 TAILQ_INIT(&sc->ready_list); 720 TAILQ_INIT(&sc->nexus_list); 721 TAILQ_INIT(&sc->free_list); 722 sc->sc_nexus = NULL; 723 acb = sc->sc_acb; 724 memset(acb, 0, sizeof(struct siop_acb) * SIOP_NACB); 725 for (i = 0; i < SIOP_NACB; i++) { 726 TAILQ_INSERT_TAIL(&sc->free_list, acb, chain); 727 acb++; 728 } 729 memset(sc->sc_tinfo, 0, sizeof(sc->sc_tinfo)); 730 } else { 731 if (sc->sc_nexus != NULL) { 732 sc->sc_nexus->xs->error = XS_RESET; 733 siopng_scsidone(sc->sc_nexus, sc->sc_nexus->stat[0]); 734 } 735 while ((acb = sc->nexus_list.tqh_first) > 0) { 736 acb->xs->error = XS_RESET; 737 siopng_scsidone(acb, acb->stat[0]); 738 } 739 } 740 741 sc->sc_flags |= SIOP_ALIVE; 742 sc->sc_flags &= ~(SIOP_INTDEFER|SIOP_INTSOFF); 743 /* enable SCSI and DMA interrupts */ 744 sc->sc_sien = SIOP_SIEN_MA | SIOP_SIEN_STO | /*SIOP_SIEN_GEN |*/ 745 /*SIOP_SIEN_SEL |*/ SIOP_SIEN_SGE | SIOP_SIEN_UDC | 746 SIOP_SIEN_RST | SIOP_SIEN_PAR; 747 sc->sc_dien = SIOP_DIEN_BF | SIOP_DIEN_ABRT | SIOP_DIEN_SIR | 748 /*SIOP_DIEN_WTD |*/ SIOP_DIEN_IID; 749 rp->siop_sien = sc->sc_sien; 750 rp->siop_dien = sc->sc_dien; 751 /*siopng_dump_registers(sc);*/ 752 } 753 754 /* 755 * Setup Data Storage for 53C720/770 and start SCRIPTS processing 756 */ 757 758 void 759 siopng_start(struct siop_softc *sc, int target, int lun, u_char *cbuf, 760 int clen, u_char *buf, int len) 761 { 762 siop_regmap_p rp = sc->sc_siopp; 763 int nchain; 764 int count, tcount; 765 char *addr, *dmaend; 766 struct siop_acb *acb = sc->sc_nexus; 767 #ifdef DEBUG 768 int i; 769 #endif 770 771 #ifdef DEBUG 772 if (siopng_debug & 0x100 && rp->siop_sbcl & SIOP_BSY) { 773 printf ("ACK! siopng was busy: rp %p script %p dsa %p active %ld\n", 774 rp, &siopng_scripts, &acb->ds, sc->sc_active); 775 printf ("istat %02x sfbr %02x respid %02x sien %04x dien %02x\n", 776 rp->siop_istat, rp->siop_sfbr, rp->siop_respid, 777 rp->siop_sien, rp->siop_dien); 778 #ifdef DDB 779 /*Debugger();*/ 780 #endif 781 } 782 #endif 783 acb->msgout[0] = MSG_IDENTIFY | lun; 784 if (siopng_allow_disc[target] & 2 || 785 (siopng_allow_disc[target] && len == 0)) 786 acb->msgout[0] = MSG_IDENTIFY_DR | lun; 787 acb->status = 0; 788 acb->stat[0] = -1; 789 acb->msg[0] = -1; 790 acb->ds.scsi_addr = (target << 16) | (sc->sc_sync[target].sxfer << 8) | 791 (sc->sc_sync[target].scntl3 << 24); 792 acb->ds.idlen = 1; 793 acb->ds.idbuf = (char *) kvtop(&acb->msgout[0]); 794 acb->ds.cmdlen = clen; 795 acb->ds.cmdbuf = (char *) kvtop(cbuf); 796 acb->ds.stslen = 1; 797 acb->ds.stsbuf = (char *) kvtop(&acb->stat[0]); 798 acb->ds.msglen = 1; 799 acb->ds.msgbuf = (char *) kvtop(&acb->msg[0]); 800 acb->msg[1] = -1; 801 acb->ds.msginlen = 1; 802 acb->ds.extmsglen = 1; 803 acb->ds.synmsglen = 3; 804 acb->ds.msginbuf = acb->ds.msgbuf + 1; 805 acb->ds.extmsgbuf = acb->ds.msginbuf + 1; 806 acb->ds.synmsgbuf = acb->ds.extmsgbuf + 1; 807 memset(&acb->ds.chain, 0, sizeof (acb->ds.chain)); 808 809 if (sc->sc_sync[target].state == NEG_WIDE) { 810 if (siopng_inhibit_wide[target]) { 811 sc->sc_sync[target].state = NEG_SYNC; 812 sc->sc_sync[target].scntl3 &= ~SIOP_SCNTL3_EWS; 813 #ifdef DEBUG 814 if (siopngsync_debug) 815 printf ("Forcing target %d narrow\n", target); 816 #endif 817 } 818 else { 819 sc->sc_sync[target].scntl3 = 0x15 | /* XXX */ 820 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 821 acb->msg[2] = -1; 822 acb->msgout[1] = MSG_EXT_MESSAGE; 823 acb->msgout[2] = 2; 824 acb->msgout[3] = MSG_WIDE_REQ; 825 acb->msgout[4] = 1; 826 acb->ds.idlen = 5; 827 acb->ds.synmsglen = 2; 828 sc->sc_sync[target].state = NEG_WAITW; 829 #ifdef DEBUG 830 if (siopngsync_debug) 831 printf("Sending wide request to target %d\n", target); 832 #endif 833 } 834 } 835 if (sc->sc_sync[target].state == NEG_SYNC) { 836 if (siopng_inhibit_sync[target]) { 837 sc->sc_sync[target].state = NEG_DONE; 838 sc->sc_sync[target].scntl3 = 5 | /* XXX */ 839 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 840 sc->sc_sync[target].sxfer = 0; 841 #ifdef DEBUG 842 if (siopngsync_debug) 843 printf ("Forcing target %d asynchronous\n", target); 844 #endif 845 } 846 else { 847 sc->sc_sync[target].scntl3 = 0x15 | /* XXX */ 848 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 849 acb->msg[2] = -1; 850 acb->msgout[1] = MSG_EXT_MESSAGE; 851 acb->msgout[2] = 3; 852 acb->msgout[3] = MSG_SYNC_REQ; 853 #ifdef MAXTOR_SYNC_KLUDGE 854 acb->msgout[4] = 50 / 4; /* ask for ridiculous period */ 855 #else 856 acb->msgout[4] = sc->sc_minsync; 857 #endif 858 acb->msgout[5] = SIOP_MAX_OFFSET; 859 acb->ds.idlen = 6; 860 sc->sc_sync[target].state = NEG_WAITS; 861 #ifdef DEBUG 862 if (siopngsync_debug) 863 printf ("Sending sync request to target %d\n", target); 864 #endif 865 } 866 } 867 868 /* 869 * Build physical DMA addresses for scatter/gather I/O 870 */ 871 acb->iob_buf = buf; 872 acb->iob_len = len; 873 acb->iob_curbuf = acb->iob_curlen = 0; 874 nchain = 0; 875 count = len; 876 addr = buf; 877 dmaend = NULL; 878 while (count > 0) { 879 acb->ds.chain[nchain].databuf = (char *) kvtop (addr); 880 if (count < (tcount = PAGE_SIZE - ((int) addr & PGOFSET))) 881 tcount = count; 882 883 #if DEBUG_ONLY_IF_DESPERATE 884 printf("chain[%d]: count %d tcount %d vaddr %p paddr %p\n", 885 nchain, count, tcount, addr, 886 acb->ds.chain[nchain].databuf); 887 #endif 888 acb->ds.chain[nchain].datalen = tcount; 889 addr += tcount; 890 count -= tcount; 891 if (acb->ds.chain[nchain].databuf == dmaend) { 892 dmaend += acb->ds.chain[nchain].datalen; 893 acb->ds.chain[nchain].datalen = 0; 894 acb->ds.chain[--nchain].datalen += tcount; 895 #ifdef DEBUG 896 ++siopngdma_hits; 897 #endif 898 } 899 else { 900 dmaend = acb->ds.chain[nchain].databuf + 901 acb->ds.chain[nchain].datalen; 902 acb->ds.chain[nchain].datalen = tcount; 903 #ifdef DEBUG 904 if (nchain) /* Don't count miss on first one */ 905 ++siopngdma_misses; 906 #endif 907 } 908 ++nchain; 909 } 910 #ifdef DEBUG 911 if (nchain != 1 && len != 0 && siopng_debug & 3) { 912 printf ("DMA chaining set: %d\n", nchain); 913 for (i = 0; i < nchain; ++i) { 914 printf (" [%d] %8p %lx\n", i, acb->ds.chain[i].databuf, 915 acb->ds.chain[i].datalen); 916 } 917 } 918 #endif 919 920 /* push data cache for all data the 53c720/770 needs to access */ 921 dma_cachectl ((void *)acb, sizeof (struct siop_acb)); 922 dma_cachectl (cbuf, clen); 923 if (buf != NULL && len != 0) 924 dma_cachectl (buf, len); 925 #ifdef DEBUG 926 if (siopng_debug & 0x100 && rp->siop_sbcl & SIOP_BSY) { 927 printf ("ACK! siopng was busy at start: rp %p script %p dsa %p active %ld\n", 928 rp, &siopng_scripts, &acb->ds, sc->sc_active); 929 #ifdef DDB 930 /*Debugger();*/ 931 #endif 932 } 933 #endif 934 if (sc->nexus_list.tqh_first == NULL) { 935 callout_reset(&acb->xs->xs_callout, 936 mstohz(acb->xs->timeout) + 1, siopng_timeout, acb); 937 if (rp->siop_istat & SIOP_ISTAT_CON) 938 printf("%s: siopng_select while connected?\n", 939 sc->sc_dev.dv_xname); 940 rp->siop_temp = 0; 941 #ifndef FIXME 942 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 943 #endif 944 amiga_membarrier(); 945 rp->siop_dsa = kvtop((void *)&acb->ds); 946 amiga_membarrier(); 947 rp->siop_dsp = sc->sc_scriptspa; 948 amiga_membarrier(); 949 SIOP_TRACE('s',1,0,0) 950 } else { 951 if ((rp->siop_istat & SIOP_ISTAT_CON) == 0) { 952 rp->siop_istat = SIOP_ISTAT_SIGP; 953 SIOP_TRACE('s',2,0,0); 954 } 955 else { 956 SIOP_TRACE('s',3,rp->siop_istat,0); 957 } 958 } 959 #ifdef DEBUG 960 ++siopngstarts; 961 #endif 962 } 963 964 /* 965 * Process a DMA or SCSI interrupt from the 53C720/770 SIOP 966 */ 967 968 int 969 siopng_checkintr(struct siop_softc *sc, u_char istat, u_char dstat, 970 u_short sist, int *status) 971 { 972 siop_regmap_p rp = sc->sc_siopp; 973 struct siop_acb *acb = sc->sc_nexus; 974 int target = 0; 975 int dfifo, dbc, sstat0, sstat1, sstat2; 976 977 dfifo = rp->siop_dfifo; 978 dbc = rp->siop_dbc0; 979 sstat0 = rp->siop_sstat0; 980 sstat1 = rp->siop_sstat1; 981 sstat2 = rp->siop_sstat2; 982 rp->siop_ctest3 |= SIOP_CTEST8_CLF; 983 while ((rp->siop_ctest1 & SIOP_CTEST1_FMT) != SIOP_CTEST1_FMT) 984 ; 985 rp->siop_ctest3 &= ~SIOP_CTEST8_CLF; 986 #ifdef DEBUG 987 ++siopngints; 988 #if 0 989 if (siopng_debug & 0x100) { 990 DCIAS(&acb->stat[0]); /* XXX */ 991 printf ("siopngchkintr: istat %x dstat %x sist %x dsps %x sbcl %x sts %x msg %x\n", 992 istat, dstat, sist, rp->siop_dsps, rp->siop_sbcl, acb->stat[0], acb->msg[0]); 993 printf ("sync msg in: %02x %02x %02x %02x %02x %02x\n", 994 acb->msg[0], acb->msg[1], acb->msg[2], 995 acb->msg[3], acb->msg[4], acb->msg[5]); 996 } 997 #endif 998 if (rp->siop_dsp && (rp->siop_dsp < sc->sc_scriptspa || 999 rp->siop_dsp >= sc->sc_scriptspa + sizeof(siopng_scripts))) { 1000 printf ("%s: dsp not within script dsp %lx scripts %lx:%lx", 1001 sc->sc_dev.dv_xname, rp->siop_dsp, sc->sc_scriptspa, 1002 sc->sc_scriptspa + sizeof(siopng_scripts)); 1003 printf(" istat %x dstat %x sist %x\n", 1004 istat, dstat, sist); 1005 #ifdef DDB 1006 Debugger(); 1007 #endif 1008 } 1009 #endif 1010 SIOP_TRACE('i',dstat,istat,(istat&SIOP_ISTAT_DIP)?rp->siop_dsps&0xff:sist); 1011 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff00) { 1012 /* Normal completion status, or check condition */ 1013 #ifdef DEBUG 1014 if (rp->siop_dsa != kvtop((void *)&acb->ds)) { 1015 printf ("siopng: invalid dsa: %lx %x\n", rp->siop_dsa, 1016 (unsigned)kvtop((void *)&acb->ds)); 1017 panic("*** siopng DSA invalid ***"); 1018 } 1019 #endif 1020 target = acb->xs->xs_periph->periph_target; 1021 if (sc->sc_sync[target].state == NEG_WAITW) { 1022 if (acb->msg[1] == 0xff) 1023 printf ("%s: target %d ignored wide request\n", 1024 sc->sc_dev.dv_xname, target); 1025 else if (acb->msg[1] == MSG_REJECT) 1026 printf ("%s: target %d rejected wide request\n", 1027 sc->sc_dev.dv_xname, target); 1028 else { 1029 printf("%s: target %d (wide) %02x %02x %02x %02x\n", 1030 sc->sc_dev.dv_xname, target, acb->msg[1], 1031 acb->msg[2], acb->msg[3], acb->msg[4]); 1032 if (acb->msg[1] == MSG_EXT_MESSAGE && 1033 acb->msg[2] == 2 && 1034 acb->msg[3] == MSG_WIDE_REQ) 1035 sc->sc_sync[target].scntl3 = acb->msg[4] ? 1036 sc->sc_sync[target].scntl3 | SIOP_SCNTL3_EWS : 1037 sc->sc_sync[target].scntl3 & ~SIOP_SCNTL3_EWS; 1038 } 1039 sc->sc_sync[target].state = NEG_SYNC; 1040 } 1041 if (sc->sc_sync[target].state == NEG_WAITS) { 1042 if (acb->msg[1] == 0xff) 1043 printf ("%s: target %d ignored sync request\n", 1044 sc->sc_dev.dv_xname, target); 1045 else if (acb->msg[1] == MSG_REJECT) 1046 printf ("%s: target %d rejected sync request\n", 1047 sc->sc_dev.dv_xname, target); 1048 else 1049 /* XXX - need to set sync transfer parameters */ 1050 printf("%s: target %d (sync) %02x %02x %02x\n", 1051 sc->sc_dev.dv_xname, target, acb->msg[1], 1052 acb->msg[2], acb->msg[3]); 1053 sc->sc_sync[target].state = NEG_DONE; 1054 } 1055 dma_cachectl(&acb->stat[0], 1); 1056 *status = acb->stat[0]; 1057 #ifdef DEBUG 1058 if (rp->siop_sbcl & SIOP_BSY) { 1059 /*printf ("ACK! siop was busy at end: rp %x script %x dsa %x\n", 1060 rp, &siopng_scripts, &acb->ds);*/ 1061 #ifdef DDB 1062 /*Debugger();*/ 1063 #endif 1064 } 1065 if (acb->msg[0] != 0x00) 1066 printf("%s: message was not COMMAND COMPLETE: %x\n", 1067 sc->sc_dev.dv_xname, acb->msg[0]); 1068 #endif 1069 if (sc->nexus_list.tqh_first) 1070 rp->siop_dcntl |= SIOP_DCNTL_STD; 1071 return 1; 1072 } 1073 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff0b) { 1074 target = acb->xs->xs_periph->periph_target; 1075 if (acb->msg[1] == MSG_EXT_MESSAGE && acb->msg[2] == 2 && 1076 acb->msg[3] == MSG_WIDE_REQ) { 1077 #ifdef DEBUG 1078 if (siopngsync_debug) 1079 printf ("wide msg in: %02x %02x %02x %02x %02x %02x\n", 1080 acb->msg[0], acb->msg[1], acb->msg[2], 1081 acb->msg[3], acb->msg[4], acb->msg[5]); 1082 #endif 1083 sc->sc_sync[target].scntl3 &= ~(SIOP_SCNTL3_EWS); 1084 if (acb->msg[2] == 2 && 1085 acb->msg[3] == MSG_WIDE_REQ && 1086 acb->msg[4] != 0) { 1087 sc->sc_sync[target].scntl3 |= SIOP_SCNTL3_EWS; 1088 printf ("%s: target %d now wide %d\n", 1089 sc->sc_dev.dv_xname, target, 1090 acb->msg[4]); 1091 } 1092 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 1093 amiga_membarrier(); 1094 if (sc->sc_sync[target].state == NEG_WAITW) { 1095 sc->sc_sync[target].state = NEG_SYNC; 1096 rp->siop_dsp = sc->sc_scriptspa + Ent_clear_ack; 1097 amiga_membarrier(); 1098 return(0); 1099 } 1100 rp->siop_dcntl |= SIOP_DCNTL_STD; 1101 amiga_membarrier(); 1102 sc->sc_sync[target].state = NEG_SYNC; 1103 return (0); 1104 } 1105 if (acb->msg[1] == MSG_EXT_MESSAGE && acb->msg[2] == 3 && 1106 acb->msg[3] == MSG_SYNC_REQ) { 1107 #ifdef DEBUG 1108 if (siopngsync_debug) 1109 printf ("sync msg in: %02x %02x %02x %02x %02x %02x\n", 1110 acb->msg[0], acb->msg[1], acb->msg[2], 1111 acb->msg[3], acb->msg[4], acb->msg[5]); 1112 #endif 1113 sc->sc_sync[target].sxfer = 0; 1114 sc->sc_sync[target].scntl3 = 5 | /* XXX */ 1115 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 1116 if (acb->msg[2] == 3 && 1117 acb->msg[3] == MSG_SYNC_REQ && 1118 acb->msg[5] != 0) { 1119 #ifdef MAXTOR_KLUDGE 1120 /* 1121 * Kludge for my Maxtor XT8580S 1122 * It accepts whatever we request, even 1123 * though it won't work. So we ask for 1124 * a short period than we can handle. If 1125 * the device says it can do it, use 208ns. 1126 * If the device says it can do less than 1127 * 100ns, then we limit it to 100ns. 1128 */ 1129 if (acb->msg[4] && acb->msg[4] < 100 / 4) { 1130 #ifdef DEBUG 1131 printf ("%d: target %d wanted %dns period\n", 1132 sc->sc_dev.dv_xname, target, 1133 acb->msg[4] * 4); 1134 #endif 1135 if (acb->msg[4] == 50 / 4) 1136 acb->msg[4] = 208 / 4; 1137 else 1138 acb->msg[4] = 100 / 4; 1139 } 1140 #endif /* MAXTOR_KLUDGE */ 1141 printf ("%s: target %d now synchronous, period=%dns, offset=%d\n", 1142 sc->sc_dev.dv_xname, target, 1143 (acb->msg[4] == 12) ? 50 : acb->msg[4] * 4, 1144 acb->msg[5]); 1145 scsi_period_to_siopng (sc, target); 1146 } 1147 rp->siop_sxfer = sc->sc_sync[target].sxfer; 1148 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 1149 amiga_membarrier(); 1150 if (sc->sc_sync[target].state == NEG_WAITS) { 1151 sc->sc_sync[target].state = NEG_DONE; 1152 rp->siop_dsp = sc->sc_scriptspa + Ent_clear_ack; 1153 amiga_membarrier(); 1154 return(0); 1155 } 1156 rp->siop_dcntl |= SIOP_DCNTL_STD; 1157 amiga_membarrier(); 1158 sc->sc_sync[target].state = NEG_DONE; 1159 return (0); 1160 } 1161 /* XXX - not SDTR message */ 1162 } 1163 if (sist & SIOP_SIST_MA) { /* Phase mismatch */ 1164 #ifdef DEBUG 1165 ++siopngphmm; 1166 if (acb == NULL) 1167 printf("%s: Phase mismatch with no active command?\n", 1168 sc->sc_dev.dv_xname); 1169 #endif 1170 if (acb->iob_len) { 1171 int adjust; 1172 adjust = ((dfifo - (dbc & 0x7f)) & 0x7f); 1173 if (sstat0 & SIOP_SSTAT0_OLF) /* sstat0 SODL lsb */ 1174 ++adjust; 1175 if (sstat0 & SIOP_SSTAT0_ORF) /* sstat0 SODR lsb */ 1176 ++adjust; 1177 if (sstat2 & SIOP_SSTAT2_OLF1) /* sstat2 SODL msb */ 1178 ++adjust; 1179 if (sstat2 & SIOP_SSTAT2_ORF1) /* sstat2 SODR msb */ 1180 ++adjust; 1181 acb->iob_curlen = 1182 *((long *)__UNVOLATILE(&rp->siop_dcmd)) & 0xffffff; 1183 acb->iob_curlen += adjust; 1184 acb->iob_curbuf = 1185 *((long *)__UNVOLATILE(&rp->siop_dnad)) - adjust; 1186 #ifdef DEBUG 1187 if (siopng_debug & 0x100) { 1188 int i; 1189 printf ("Phase mismatch: curbuf %lx curlen %lx dfifo %x dbc %x sstat1 %x adjust %x sbcl %x starts %d acb %p\n", 1190 acb->iob_curbuf, acb->iob_curlen, dfifo, 1191 dbc, sstat1, adjust, rp->siop_sbcl, siopngstarts, acb); 1192 if (acb->ds.chain[1].datalen) { 1193 for (i = 0; acb->ds.chain[i].datalen; ++i) 1194 printf("chain[%d] addr %p len %lx\n", 1195 i, acb->ds.chain[i].databuf, 1196 acb->ds.chain[i].datalen); 1197 } 1198 } 1199 #endif 1200 dma_cachectl ((void *)acb, sizeof(*acb)); 1201 } 1202 #ifdef DEBUG 1203 SIOP_TRACE('m',rp->siop_sbcl,(rp->siop_dsp>>8),rp->siop_dsp); 1204 if (siopng_debug & 9) 1205 printf ("Phase mismatch: %x dsp +%lx dcmd %lx\n", 1206 rp->siop_sbcl, 1207 rp->siop_dsp - sc->sc_scriptspa, 1208 *((volatile long *)&rp->siop_dcmd)); 1209 #endif 1210 if ((rp->siop_sbcl & SIOP_REQ) == 0) { 1211 printf ("Phase mismatch: REQ not asserted! %02x dsp %lx\n", 1212 rp->siop_sbcl, rp->siop_dsp); 1213 #if defined(DEBUG) && defined(DDB) 1214 Debugger(); 1215 #endif 1216 } 1217 switch (rp->siop_sbcl & 7) { 1218 case 0: /* data out */ 1219 case 1: /* data in */ 1220 case 2: /* status */ 1221 case 3: /* command */ 1222 case 6: /* message in */ 1223 case 7: /* message out */ 1224 rp->siop_dsp = sc->sc_scriptspa + Ent_switch; 1225 amiga_membarrier(); 1226 break; 1227 default: 1228 goto bad_phase; 1229 } 1230 return 0; 1231 } 1232 if (sist & SIOP_SIST_STO) { /* Select timed out */ 1233 #ifdef DEBUG 1234 if (acb == NULL) 1235 printf("%s: Select timeout with no active command?\n", 1236 sc->sc_dev.dv_xname); 1237 if (rp->siop_sbcl & SIOP_BSY) { 1238 printf ("ACK! siop was busy at timeout: rp %p script %p dsa %p\n", 1239 rp, &siopng_scripts, &acb->ds); 1240 printf(" sbcl %x sdid %x istat %x dstat %x sist %x\n", 1241 rp->siop_sbcl, rp->siop_sdid, istat, dstat, sist); 1242 if (!(rp->siop_sbcl & SIOP_BSY)) { 1243 printf ("Yikes, it's not busy now!\n"); 1244 #if 0 1245 *status = -1; 1246 if (sc->nexus_list.tqh_first) { 1247 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1248 amiga_membarrier(); 1249 } 1250 return 1; 1251 #endif 1252 } 1253 /* rp->siop_dcntl |= SIOP_DCNTL_STD;*/ 1254 return (0); 1255 #ifdef DDB 1256 Debugger(); 1257 #endif 1258 } 1259 #endif 1260 *status = -1; 1261 acb->xs->error = XS_SELTIMEOUT; 1262 if (sc->nexus_list.tqh_first) { 1263 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1264 amiga_membarrier(); 1265 } 1266 return 1; 1267 } 1268 if (acb) 1269 target = acb->xs->xs_periph->periph_target; 1270 else 1271 target = 7; 1272 if (sist & SIOP_SIST_UDC) { 1273 #ifdef DEBUG 1274 if (acb == NULL) 1275 printf("%s: Unexpected disconnect with no active command?\n", 1276 sc->sc_dev.dv_xname); 1277 printf ("%s: target %d disconnected unexpectedly\n", 1278 sc->sc_dev.dv_xname, target); 1279 siopng_dump_registers(sc); 1280 siopng_dump(sc); 1281 #endif 1282 #if 0 1283 siopngabort (sc, rp, "siopngchkintr"); 1284 #endif 1285 *status = STS_BUSY; 1286 if (sc->nexus_list.tqh_first) { 1287 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1288 amiga_membarrier(); 1289 } 1290 return (acb != NULL); 1291 } 1292 if (dstat & SIOP_DSTAT_SIR && (rp->siop_dsps == 0xff01 || 1293 rp->siop_dsps == 0xff02)) { 1294 #ifdef DEBUG 1295 if (siopng_debug & 0x100) 1296 printf ("%s: ID %02x disconnected TEMP %lx (+%lx) curbuf %lx curlen %lx buf %p len %lx dfifo %x dbc %x sstat1 %x starts %d acb %p\n", 1297 sc->sc_dev.dv_xname, 1 << target, rp->siop_temp, 1298 rp->siop_temp ? rp->siop_temp - sc->sc_scriptspa : 0, 1299 acb->iob_curbuf, acb->iob_curlen, 1300 acb->ds.chain[0].databuf, acb->ds.chain[0].datalen, dfifo, dbc, sstat1, siopngstarts, acb); 1301 #endif 1302 if (acb == NULL) { 1303 printf("%s: Disconnect with no active command?\n", 1304 sc->sc_dev.dv_xname); 1305 return (0); 1306 } 1307 /* 1308 * XXXX need to update iob_curbuf/iob_curlen to reflect 1309 * current data transferred. If device disconnected in 1310 * the middle of a DMA block, they should already be set 1311 * by the phase change interrupt. If the disconnect 1312 * occurs on a DMA block boundary, we have to figure out 1313 * which DMA block it was. 1314 */ 1315 if (acb->iob_len && rp->siop_temp) { 1316 int n = rp->siop_temp - sc->sc_scriptspa; 1317 1318 if (acb->iob_curlen && acb->iob_curlen != acb->ds.chain[0].datalen) 1319 printf("%s: iob_curbuf/len already set? n %x iob %lx/%lx chain[0] %p/%lx\n", 1320 sc->sc_dev.dv_xname, n, acb->iob_curbuf, acb->iob_curlen, 1321 acb->ds.chain[0].databuf, acb->ds.chain[0].datalen); 1322 if (n < Ent_datain) 1323 n = (n - Ent_dataout) / 16; 1324 else 1325 n = (n - Ent_datain) / 16; 1326 if (n <= 0 && n > DMAMAXIO) 1327 printf("TEMP invalid %d\n", n); 1328 else { 1329 acb->iob_curbuf = (u_long)acb->ds.chain[n].databuf; 1330 acb->iob_curlen = acb->ds.chain[n].datalen; 1331 } 1332 #ifdef DEBUG 1333 if (siopng_debug & 0x100) { 1334 printf("%s: TEMP offset %d", sc->sc_dev.dv_xname, n); 1335 printf(" curbuf %lx curlen %lx\n", acb->iob_curbuf, 1336 acb->iob_curlen); 1337 } 1338 #endif 1339 } 1340 /* 1341 * If data transfer was interrupted by disconnect, iob_curbuf 1342 * and iob_curlen should reflect the point of interruption. 1343 * Adjust the DMA chain so that the data transfer begins 1344 * at the appropriate place upon reselection. 1345 * XXX This should only be done on save data pointer message? 1346 */ 1347 if (acb->iob_curlen) { 1348 int i, j; 1349 1350 #ifdef DEBUG 1351 if (siopng_debug & 0x100) 1352 printf ("%s: adjusting DMA chain\n", 1353 sc->sc_dev.dv_xname); 1354 if (rp->siop_dsps == 0xff02) 1355 printf ("%s: ID %02x disconnected without Save Data Pointers\n", 1356 sc->sc_dev.dv_xname, 1 << target); 1357 #endif 1358 for (i = 0; i < DMAMAXIO; ++i) { 1359 if (acb->ds.chain[i].datalen == 0) 1360 break; 1361 if (acb->iob_curbuf >= (long)acb->ds.chain[i].databuf && 1362 acb->iob_curbuf < (long)(acb->ds.chain[i].databuf + 1363 acb->ds.chain[i].datalen)) 1364 break; 1365 } 1366 if (i >= DMAMAXIO || acb->ds.chain[i].datalen == 0) { 1367 printf("couldn't find saved data pointer: "); 1368 printf("curbuf %lx curlen %lx i %d\n", 1369 acb->iob_curbuf, acb->iob_curlen, i); 1370 #ifdef DDB 1371 Debugger(); 1372 #endif 1373 } 1374 #ifdef DEBUG 1375 if (siopng_debug & 0x100) 1376 printf(" chain[0]: %p/%lx -> %lx/%lx\n", 1377 acb->ds.chain[0].databuf, 1378 acb->ds.chain[0].datalen, 1379 acb->iob_curbuf, 1380 acb->iob_curlen); 1381 #endif 1382 acb->ds.chain[0].databuf = (char *)acb->iob_curbuf; 1383 acb->ds.chain[0].datalen = acb->iob_curlen; 1384 for (j = 1, ++i; i < DMAMAXIO && acb->ds.chain[i].datalen; ++i, ++j) { 1385 #ifdef DEBUG 1386 if (siopng_debug & 0x100) 1387 printf(" chain[%d]: %p/%lx -> %p/%lx\n", j, 1388 acb->ds.chain[j].databuf, 1389 acb->ds.chain[j].datalen, 1390 acb->ds.chain[i].databuf, 1391 acb->ds.chain[i].datalen); 1392 #endif 1393 acb->ds.chain[j].databuf = acb->ds.chain[i].databuf; 1394 acb->ds.chain[j].datalen = acb->ds.chain[i].datalen; 1395 } 1396 if (j < DMAMAXIO) 1397 acb->ds.chain[j].datalen = 0; 1398 DCIAS(kvtop((void *)&acb->ds.chain)); 1399 } 1400 ++sc->sc_tinfo[target].dconns; 1401 /* 1402 * add nexus to waiting list 1403 * clear nexus 1404 * try to start another command for another target/lun 1405 */ 1406 acb->status = sc->sc_flags & SIOP_INTSOFF; 1407 TAILQ_INSERT_HEAD(&sc->nexus_list, acb, chain); 1408 sc->sc_nexus = NULL; /* no current device */ 1409 /* start script to wait for reselect */ 1410 if (sc->sc_nexus == NULL) { 1411 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1412 amiga_membarrier(); 1413 } 1414 /* XXXX start another command ? */ 1415 if (sc->ready_list.tqh_first) 1416 siopng_sched(sc); 1417 #if 0 1418 else 1419 rp->siop_dcntl |= SIOP_DCNTL_STD; 1420 #endif 1421 return (0); 1422 } 1423 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff03) { 1424 int reselid = rp->siop_scratcha & 0x7f; 1425 int reselun = rp->siop_sfbr & 0x07; 1426 1427 sc->sc_sstat1 = rp->siop_sbcl; /* XXXX save current SBCL */ 1428 #ifdef DEBUG 1429 if (siopng_debug & 0x100) 1430 printf ("%s: target ID %02x reselected dsps %lx\n", 1431 sc->sc_dev.dv_xname, reselid, 1432 rp->siop_dsps); 1433 if ((rp->siop_sfbr & 0x80) == 0) 1434 printf("%s: Reselect message in was not identify: %x\n", 1435 sc->sc_dev.dv_xname, rp->siop_sfbr); 1436 #endif 1437 if (sc->sc_nexus) { 1438 #ifdef DEBUG 1439 if (siopng_debug & 0x100) 1440 printf ("%s: reselect ID %02x w/active\n", 1441 sc->sc_dev.dv_xname, reselid); 1442 #endif 1443 TAILQ_INSERT_HEAD(&sc->ready_list, sc->sc_nexus, chain); 1444 sc->sc_tinfo[sc->sc_nexus->xs->xs_periph->periph_target].lubusy 1445 &= ~(1 << sc->sc_nexus->xs->xs_periph->periph_lun); 1446 --sc->sc_active; 1447 } 1448 /* 1449 * locate acb of reselecting device 1450 * set sc->sc_nexus to acb 1451 */ 1452 for (acb = sc->nexus_list.tqh_first; acb; 1453 acb = acb->chain.tqe_next) { 1454 if (reselid != ((acb->ds.scsi_addr >> 16) & 0xff) || 1455 reselun != (acb->msgout[0] & 0x07)) 1456 continue; 1457 TAILQ_REMOVE(&sc->nexus_list, acb, chain); 1458 sc->sc_nexus = acb; 1459 sc->sc_flags |= acb->status; 1460 acb->status = 0; 1461 DCIAS(kvtop(&acb->stat[0])); 1462 rp->siop_dsa = kvtop((void *)&acb->ds); 1463 amiga_membarrier(); 1464 rp->siop_sxfer = 1465 sc->sc_sync[acb->xs->xs_periph->periph_target].sxfer; 1466 #ifndef FIXME 1467 rp->siop_scntl3 = 1468 sc->sc_sync[acb->xs->xs_periph->periph_target].scntl3; 1469 amiga_membarrier(); 1470 #endif 1471 break; 1472 } 1473 if (acb == NULL) { 1474 printf("%s: target ID %02x reselect nexus_list %p\n", 1475 sc->sc_dev.dv_xname, reselid, 1476 sc->nexus_list.tqh_first); 1477 panic("unable to find reselecting device"); 1478 } 1479 dma_cachectl ((void *)acb, sizeof(*acb)); 1480 rp->siop_temp = 0; 1481 rp->siop_dcntl |= SIOP_DCNTL_STD; 1482 amiga_membarrier(); 1483 return (0); 1484 } 1485 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff04) { 1486 #ifdef DEBUG 1487 u_short ctest2 = rp->siop_ctest2; 1488 1489 /* reselect was interrupted (by Sig_P or select) */ 1490 if (siopng_debug & 0x100 || 1491 (ctest2 & SIOP_CTEST2_SIGP) == 0) 1492 printf ("%s: reselect interrupted (Sig_P?) scntl1 %x ctest2 %x sfbr %x istat %x/%x\n", 1493 sc->sc_dev.dv_xname, rp->siop_scntl1, 1494 ctest2, rp->siop_sfbr, istat, rp->siop_istat); 1495 #endif 1496 /* XXX assumes it was not select */ 1497 if (sc->sc_nexus == NULL) { 1498 #ifdef DEBUG 1499 printf("%s: reselect interrupted, sc_nexus == NULL\n", 1500 sc->sc_dev.dv_xname); 1501 #if 0 1502 siopng_dump(sc); 1503 #ifdef DDB 1504 Debugger(); 1505 #endif 1506 #endif 1507 #endif 1508 rp->siop_dcntl |= SIOP_DCNTL_STD; 1509 return(0); 1510 } 1511 target = sc->sc_nexus->xs->xs_periph->periph_target; 1512 rp->siop_temp = 0; 1513 rp->siop_dsa = kvtop((void *)&sc->sc_nexus->ds); 1514 amiga_membarrier(); 1515 rp->siop_sxfer = sc->sc_sync[target].sxfer; 1516 #ifndef FIXME 1517 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 1518 amiga_membarrier(); 1519 #endif 1520 rp->siop_dsp = sc->sc_scriptspa; 1521 amiga_membarrier(); 1522 return (0); 1523 } 1524 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff06) { 1525 if (acb == NULL) 1526 printf("%s: Bad message-in with no active command?\n", 1527 sc->sc_dev.dv_xname); 1528 /* Unrecognized message in byte */ 1529 dma_cachectl (&acb->msg[1],1); 1530 printf ("%s: Unrecognized message in data sfbr %x msg %x sbcl %x\n", 1531 sc->sc_dev.dv_xname, rp->siop_sfbr, acb->msg[1], rp->siop_sbcl); 1532 /* what should be done here? */ 1533 DCIAS(kvtop(&acb->msg[1])); 1534 rp->siop_dsp = sc->sc_scriptspa + Ent_clear_ack; 1535 amiga_membarrier(); 1536 return (0); 1537 } 1538 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff0a) { 1539 /* Status phase wasn't followed by message in phase? */ 1540 printf ("%s: Status phase not followed by message in phase? sbcl %x sbdl %x\n", 1541 sc->sc_dev.dv_xname, rp->siop_sbcl, rp->siop_sbdl); 1542 if (rp->siop_sbcl == 0xa7) { 1543 /* It is now, just continue the script? */ 1544 rp->siop_dcntl |= SIOP_DCNTL_STD; 1545 return (0); 1546 } 1547 } 1548 if (sist == 0 && dstat & SIOP_DSTAT_SIR) { 1549 dma_cachectl (&acb->stat[0], 1); 1550 dma_cachectl (&acb->msg[0], 1); 1551 printf ("SIOP interrupt: %lx sts %x msg %x %x sbcl %x\n", 1552 rp->siop_dsps, acb->stat[0], acb->msg[0], acb->msg[1], 1553 rp->siop_sbcl); 1554 siopngreset (sc); 1555 *status = -1; 1556 return 0; /* siopngreset has cleaned up */ 1557 } 1558 if (sist & SIOP_SIST_SGE) 1559 printf ("SIOP: SCSI Gross Error\n"); 1560 if (sist & SIOP_SIST_PAR) 1561 printf ("SIOP: Parity Error\n"); 1562 if (dstat & SIOP_DSTAT_IID) 1563 printf ("SIOP: Invalid instruction detected\n"); 1564 bad_phase: 1565 /* 1566 * temporary panic for unhandled conditions 1567 * displays various things about the 53C720/770 status and registers 1568 * then panics. 1569 * XXXX need to clean this up to print out the info, reset, and continue 1570 */ 1571 printf ("siopngchkintr: target %x ds %p\n", target, &acb->ds); 1572 printf ("scripts %lx ds %x rp %x dsp %lx dcmd %lx\n", 1573 sc->sc_scriptspa, (unsigned)kvtop((void *)&acb->ds), 1574 (unsigned)kvtop((void *)__UNVOLATILE(rp)), rp->siop_dsp, 1575 *((long *)__UNVOLATILE(&rp->siop_dcmd))); 1576 printf ("siopngchkintr: istat %x dstat %x sist %x dsps %lx dsa %lx sbcl %x sts %x msg %x %x sfbr %x\n", 1577 istat, dstat, sist, rp->siop_dsps, rp->siop_dsa, 1578 rp->siop_sbcl, acb->stat[0], acb->msg[0], acb->msg[1], rp->siop_sfbr); 1579 #ifdef DEBUG 1580 if (siopng_debug & 0x20) 1581 panic("siopngchkintr: **** temp ****"); 1582 #endif 1583 #ifdef DDB 1584 Debugger (); 1585 #endif 1586 siopngreset (sc); /* hard reset */ 1587 *status = -1; 1588 return 0; /* siopngreset cleaned up */ 1589 } 1590 1591 void 1592 siopng_select(struct siop_softc *sc) 1593 { 1594 siop_regmap_p rp; 1595 struct siop_acb *acb = sc->sc_nexus; 1596 1597 #ifdef DEBUG 1598 if (siopng_debug & 1) 1599 printf ("%s: select ", sc->sc_dev.dv_xname); 1600 #endif 1601 1602 rp = sc->sc_siopp; 1603 if (acb->xs->xs_control & XS_CTL_POLL || siopng_no_dma) { 1604 sc->sc_flags |= SIOP_INTSOFF; 1605 sc->sc_flags &= ~SIOP_INTDEFER; 1606 if ((rp->siop_istat & 0x08) == 0) { 1607 rp->siop_sien = 0; 1608 rp->siop_dien = 0; 1609 } 1610 #if 0 1611 } else if ((sc->sc_flags & SIOP_INTDEFER) == 0) { 1612 sc->sc_flags &= ~SIOP_INTSOFF; 1613 if ((rp->siop_istat & 0x08) == 0) { 1614 rp->siop_sien = sc->sc_sien; 1615 rp->siop_dien = sc->sc_dien; 1616 } 1617 #endif 1618 } 1619 #ifdef DEBUG 1620 if (siopng_debug & 1) 1621 printf ("siopng_select: target %x cmd %02x ds %p\n", 1622 acb->xs->xs_periph->periph_target, acb->cmd.opcode, 1623 &sc->sc_nexus->ds); 1624 #endif 1625 1626 siopng_start(sc, acb->xs->xs_periph->periph_target, 1627 acb->xs->xs_periph->periph_lun, 1628 (u_char *)&acb->cmd, acb->clen, acb->daddr, acb->dleft); 1629 1630 return; 1631 } 1632 1633 /* 1634 * 53C720/770 interrupt handler 1635 */ 1636 1637 void 1638 siopngintr(register struct siop_softc *sc) 1639 { 1640 siop_regmap_p rp; 1641 u_char istat, dstat; 1642 u_short sist; 1643 int status; 1644 int s = splbio(); 1645 1646 istat = sc->sc_istat; 1647 if ((istat & (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) { 1648 splx(s); 1649 return; 1650 } 1651 1652 /* Got a valid interrupt on this device */ 1653 rp = sc->sc_siopp; 1654 dstat = sc->sc_dstat; 1655 sist = sc->sc_sist; 1656 if (dstat & SIOP_DSTAT_SIR) 1657 sc->sc_intcode = rp->siop_dsps; 1658 sc->sc_istat = 0; 1659 #ifdef DEBUG 1660 if (siopng_debug & 1) 1661 printf ("%s: intr istat %x dstat %x sist %x\n", 1662 sc->sc_dev.dv_xname, istat, dstat, sist); 1663 if (!sc->sc_active) { 1664 printf ("%s: spurious interrupt? istat %x dstat %x sist %x nexus %p status %x\n", 1665 sc->sc_dev.dv_xname, istat, dstat, sist, 1666 sc->sc_nexus, sc->sc_nexus ? sc->sc_nexus->stat[0] : 0); 1667 } 1668 #endif 1669 1670 #ifdef DEBUG 1671 if (siopng_debug & 5) { 1672 DCIAS(kvtop(&sc->sc_nexus->stat[0])); 1673 printf ("%s: intr istat %x dstat %x sist %x dsps %lx sbcl %x sts %x msg %x\n", 1674 sc->sc_dev.dv_xname, istat, dstat, sist, 1675 rp->siop_dsps, rp->siop_sbcl, 1676 sc->sc_nexus->stat[0], sc->sc_nexus->msg[0]); 1677 } 1678 #endif 1679 if (sc->sc_flags & SIOP_INTDEFER) { 1680 sc->sc_flags &= ~(SIOP_INTDEFER | SIOP_INTSOFF); 1681 rp->siop_sien = sc->sc_sien; 1682 rp->siop_dien = sc->sc_dien; 1683 } 1684 if (siopng_checkintr (sc, istat, dstat, sist, &status)) { 1685 #if 1 1686 if (status == 0xff) 1687 printf ("siopngintr: status == 0xff\n"); 1688 #endif 1689 if ((sc->sc_flags & (SIOP_INTSOFF | SIOP_INTDEFER)) != SIOP_INTSOFF) { 1690 #if 0 1691 if (rp->siop_sbcl & SIOP_BSY) { 1692 printf ("%s: SCSI bus busy at completion", 1693 sc->sc_dev.dv_xname); 1694 printf(" targ %d sbcl %02x sfbr %x respid %02x dsp +%x\n", 1695 sc->sc_nexus->xs->xs_periph->periph_target, 1696 rp->siop_sbcl, rp->siop_sfbr, rp->siop_respid, 1697 rp->siop_dsp - sc->sc_scriptspa); 1698 } 1699 #endif 1700 siopng_scsidone(sc->sc_nexus, sc->sc_nexus ? 1701 sc->sc_nexus->stat[0] : -1); 1702 } 1703 } 1704 splx(s); 1705 } 1706 1707 /* 1708 * This is based on the Progressive Peripherals 33 MHz Zeus driver and will 1709 * not be correct for other 53c710 boards. 1710 * 1711 */ 1712 void 1713 scsi_period_to_siopng(struct siop_softc *sc, int target) 1714 { 1715 int period, offset, sxfer, scntl3 = 0; 1716 1717 period = sc->sc_nexus->msg[4]; 1718 offset = sc->sc_nexus->msg[5]; 1719 #ifdef FIXME 1720 for (scntl3 = 1; scntl3 < 4; ++scntl3) { 1721 sxfer = (period * 4 - 1) / sc->sc_tcp[scntl3] - 3; 1722 if (sxfer >= 0 && sxfer <= 7) 1723 break; 1724 } 1725 if (scntl3 > 3) { 1726 printf("siopng sync: unable to compute sync params for period %dns\n", 1727 period * 4); 1728 /* 1729 * XXX need to pick a value we can do and renegotiate 1730 */ 1731 sxfer = scntl3 = 0; 1732 } else { 1733 sxfer = (sxfer << 4) | ((offset <= SIOP_MAX_OFFSET) ? 1734 offset : SIOP_MAX_OFFSET); 1735 #ifdef DEBUG_SYNC 1736 printf("siopng sync: params for period %dns: sxfer %x scntl3 %x", 1737 period * 4, sxfer, scntl3); 1738 printf(" actual period %dns\n", 1739 sc->sc_tcp[scntl3] * ((sxfer >> 4) + 4)); 1740 #endif /* DEBUG_SYNC */ 1741 } 1742 #else /* FIXME */ 1743 sxfer = offset <= SIOP_MAX_OFFSET ? offset : SIOP_MAX_OFFSET; 1744 sxfer |= 0x20; /* XXX XFERP: 5 */ 1745 #ifndef FIXME 1746 if (period <= (50 / 4)) /* XXX */ 1747 scntl3 = 0x95; /* Ultra, SCF: /1, CCF: /4 */ 1748 else if (period <= (100 / 4)) 1749 scntl3 = 0x35; /* SCF: /2, CCF: /4 */ 1750 else if (period <= (200 / 4)) 1751 scntl3 = 0x55; /* SCF: /4, CCF: /4 */ 1752 else 1753 scntl3 = 0xff; /* XXX ??? */ 1754 #else 1755 scntl3 = 5; 1756 #endif 1757 #endif 1758 sc->sc_sync[target].sxfer = sxfer; 1759 sc->sc_sync[target].scntl3 = scntl3 | 1760 (sc->sc_sync[target].scntl3 & SIOP_SCNTL3_EWS); 1761 #ifdef DEBUG_SYNC 1762 printf ("siopng sync: siop_sxfr %02x, siop_scntl3 %02x\n", sxfer, scntl3); 1763 #endif 1764 } 1765 1766 void 1767 siopng_dump_registers(struct siop_softc *sc) 1768 { 1769 siop_regmap_p rp = sc->sc_siopp; 1770 1771 printf(" scntl0 %02x scntl1 %02x scntl2 %02x scntl3 %02x\n", 1772 rp->siop_scntl0, rp->siop_scntl1, rp->siop_scntl2, rp->siop_scntl3); 1773 printf(" scid %02x sxfer %02x sdid %02x gpreg %02x\n", 1774 rp->siop_scid, rp->siop_sxfer, rp->siop_sdid, rp->siop_gpreg); 1775 printf(" sfbr %02x socl %02x ssid %02x sbcl %02x\n", 1776 rp->siop_sfbr, rp->siop_socl, rp->siop_ssid, rp->siop_sbcl); 1777 printf(" dstat %02x sstat0 %02x sstat1 %02x sstat2 %02x\n", 1778 rp->siop_dstat, rp->siop_sstat0, rp->siop_sstat1, rp->siop_sstat2); 1779 printf(" ctest0 %02x ctest1 %02x ctest2 %02x ctest3 %02x\n", 1780 rp->siop_ctest0, rp->siop_ctest1, rp->siop_ctest2, rp->siop_ctest3); 1781 printf(" dfifo %02x ctest4 %02x ctest5 %02x ctest6 %02x\n", 1782 0, rp->siop_ctest4, rp->siop_ctest5, rp->siop_ctest6); 1783 printf(" dcmd %02x dbc2 %02x dbc1 %02x dbc0 %02x\n", 1784 rp->siop_dcmd, rp->siop_dbc2, rp->siop_dbc1, rp->siop_dbc0); 1785 printf(" dmode %02x dien %02x dwt %02x dcntl %02x\n", 1786 rp->siop_dmode, rp->siop_dien, rp->siop_dwt, rp->siop_dcntl); 1787 printf(" stest0 %02x stest1 %02x stest2 %02x stest3 %02x\n", 1788 rp->siop_stest0, rp->siop_stest1, rp->siop_stest2, rp->siop_stest3); 1789 printf(" istat %02x sien %04x sist %04x respid %04x\n", 1790 rp->siop_istat, rp->siop_sien, rp->siop_sist, rp->siop_respid); 1791 printf(" sidl %04x sodl %04x sbdl %04x\n", 1792 rp->siop_sidl, rp->siop_sodl, rp->siop_sbdl); 1793 printf(" dsps %08lx dsp %08lx (+%lx)\n", 1794 rp->siop_dsps, rp->siop_dsp, rp->siop_dsp > sc->sc_scriptspa ? 1795 rp->siop_dsp - sc->sc_scriptspa : 0); 1796 printf(" dsa %08lx temp %08lx dnad %08lx\n", 1797 rp->siop_dsa, rp->siop_temp, rp->siop_dnad); 1798 printf(" scratcha %08lx scratchb %08lx adder %08lx\n", 1799 rp->siop_scratcha, rp->siop_scratchb, rp->siop_adder); 1800 } 1801 1802 #ifdef DEBUG 1803 1804 #if SIOP_TRACE_SIZE 1805 void 1806 siopng_dump_trace(void) 1807 { 1808 int i; 1809 1810 printf("siopng trace: next index %d\n", siopng_trix); 1811 i = siopng_trix; 1812 do { 1813 printf("%3d: '%c' %02x %02x %02x\n", i, siopng_trbuf[i], 1814 siopng_trbuf[i + 1], siopng_trbuf[i + 2], siopng_trbuf[i + 3]); 1815 i = (i + 4) & (SIOP_TRACE_SIZE - 1); 1816 } while (i != siopng_trix); 1817 } 1818 #endif 1819 1820 void 1821 siopng_dump_acb(struct siop_acb *acb) 1822 { 1823 u_char *b = (u_char *) &acb->cmd; 1824 int i; 1825 1826 printf("acb@%p ", acb); 1827 if (acb->xs == NULL) { 1828 printf("<unused>\n"); 1829 return; 1830 } 1831 printf("(%d:%d) flags %2x clen %2d cmd ", 1832 acb->xs->xs_periph->periph_target, 1833 acb->xs->xs_periph->periph_lun, acb->flags, acb->clen); 1834 for (i = acb->clen; i; --i) 1835 printf(" %02x", *b++); 1836 printf("\n"); 1837 printf(" xs: %p data %p:%04x ", acb->xs, acb->xs->data, 1838 acb->xs->datalen); 1839 printf("va %p:%lx ", acb->iob_buf, acb->iob_len); 1840 printf("cur %lx:%lx\n", acb->iob_curbuf, acb->iob_curlen); 1841 } 1842 1843 void 1844 siopng_dump(struct siop_softc *sc) 1845 { 1846 struct siop_acb *acb; 1847 siop_regmap_p rp = sc->sc_siopp; 1848 int s; 1849 int i; 1850 1851 s = splbio(); 1852 #if SIOP_TRACE_SIZE 1853 siopng_dump_trace(); 1854 #endif 1855 printf("%s@%p regs %p istat %x\n", 1856 sc->sc_dev.dv_xname, sc, rp, rp->siop_istat); 1857 if ((acb = sc->free_list.tqh_first) > 0) { 1858 printf("Free list:\n"); 1859 while (acb) { 1860 siopng_dump_acb(acb); 1861 acb = acb->chain.tqe_next; 1862 } 1863 } 1864 if ((acb = sc->ready_list.tqh_first) > 0) { 1865 printf("Ready list:\n"); 1866 while (acb) { 1867 siopng_dump_acb(acb); 1868 acb = acb->chain.tqe_next; 1869 } 1870 } 1871 if ((acb = sc->nexus_list.tqh_first) > 0) { 1872 printf("Nexus list:\n"); 1873 while (acb) { 1874 siopng_dump_acb(acb); 1875 acb = acb->chain.tqe_next; 1876 } 1877 } 1878 if (sc->sc_nexus) { 1879 printf("Nexus:\n"); 1880 siopng_dump_acb(sc->sc_nexus); 1881 } 1882 for (i = 0; i < 8; ++i) { 1883 if (sc->sc_tinfo[i].cmds > 2) { 1884 printf("tgt %d: cmds %d disc %d lubusy %x\n", 1885 i, sc->sc_tinfo[i].cmds, 1886 sc->sc_tinfo[i].dconns, 1887 sc->sc_tinfo[i].lubusy); 1888 } 1889 } 1890 splx(s); 1891 } 1892 #endif 1893