nhpib.c revision 1.33
1 /* $NetBSD: nhpib.c,v 1.33 2006/02/23 05:37:47 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 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. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright (c) 1982, 1990, 1993 41 * The Regents of the University of California. All rights reserved. 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 * 3. Neither the name of the University nor the names of its contributors 52 * may be used to endorse or promote products derived from this software 53 * without specific prior written permission. 54 * 55 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 56 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 57 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 58 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 59 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 60 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 61 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 62 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 63 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 64 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 65 * SUCH DAMAGE. 66 * 67 * @(#)nhpib.c 8.2 (Berkeley) 1/12/94 68 */ 69 70 /* 71 * Internal/98624 HPIB driver 72 */ 73 74 #include <sys/cdefs.h> 75 __KERNEL_RCSID(0, "$NetBSD: nhpib.c,v 1.33 2006/02/23 05:37:47 thorpej Exp $"); 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/callout.h> 80 #include <sys/kernel.h> 81 #include <sys/buf.h> 82 #include <sys/device.h> 83 84 #include <machine/bus.h> 85 86 #include <hp300/dev/intiovar.h> 87 #include <hp300/dev/diovar.h> 88 #include <hp300/dev/diodevs.h> 89 #include <hp300/dev/dmavar.h> 90 91 #include <hp300/dev/nhpibreg.h> 92 #include <hp300/dev/hpibvar.h> 93 94 /* 95 * ODD parity table for listen and talk addresses and secondary commands. 96 * The TI9914A doesn't produce the parity bit. 97 */ 98 static const u_char listnr_par[] = { 99 0040,0241,0242,0043,0244,0045,0046,0247, 100 0250,0051,0052,0253,0054,0255,0256,0057, 101 0260,0061,0062,0263,0064,0265,0266,0067, 102 0070,0271,0272,0073,0274,0075,0076,0277, 103 }; 104 static const u_char talker_par[] = { 105 0100,0301,0302,0103,0304,0105,0106,0307, 106 0310,0111,0112,0313,0114,0315,0316,0117, 107 0320,0121,0122,0323,0124,0325,0326,0127, 108 0130,0331,0332,0133,0334,0135,0136,0337, 109 }; 110 static const u_char sec_par[] = { 111 0340,0141,0142,0343,0144,0345,0346,0147, 112 0150,0351,0352,0153,0354,0155,0156,0357, 113 0160,0361,0362,0163,0364,0165,0166,0367, 114 0370,0171,0172,0373,0174,0375,0376,0177 115 }; 116 117 static void nhpibifc(struct nhpibdevice *); 118 static void nhpibreadtimo(void *); 119 static int nhpibwait(struct nhpibdevice *, int); 120 121 static void nhpibreset(struct hpibbus_softc *); 122 static int nhpibsend(struct hpibbus_softc *, int, int, void *, int); 123 static int nhpibrecv(struct hpibbus_softc *, int, int, void *, int); 124 static int nhpibppoll(struct hpibbus_softc *); 125 static void nhpibppwatch(void *); 126 static void nhpibgo(struct hpibbus_softc *, int, int, void *, int, int, 127 int); 128 static void nhpibdone(struct hpibbus_softc *); 129 static int nhpibintr(void *); 130 131 /* 132 * Our controller ops structure. 133 */ 134 static struct hpib_controller nhpib_controller = { 135 nhpibreset, 136 nhpibsend, 137 nhpibrecv, 138 nhpibppoll, 139 nhpibppwatch, 140 nhpibgo, 141 nhpibdone, 142 nhpibintr 143 }; 144 145 struct nhpib_softc { 146 struct device sc_dev; /* generic device glue */ 147 148 bus_space_tag_t sc_bst; 149 bus_space_handle_t sc_bsh; 150 151 struct nhpibdevice *sc_regs; /* device registers */ 152 struct hpibbus_softc *sc_hpibbus; /* XXX */ 153 154 int sc_myaddr; 155 int sc_type; 156 157 struct callout sc_read_ch; 158 struct callout sc_ppwatch_ch; 159 }; 160 161 static int nhpib_dio_match(struct device *, struct cfdata *, void *); 162 static void nhpib_dio_attach(struct device *, struct device *, void *); 163 static int nhpib_intio_match(struct device *, struct cfdata *, void *); 164 static void nhpib_intio_attach(struct device *, struct device *, void *); 165 166 static void nhpib_common_attach(struct nhpib_softc *, const char *); 167 168 CFATTACH_DECL(nhpib_dio, sizeof(struct nhpib_softc), 169 nhpib_dio_match, nhpib_dio_attach, NULL, NULL); 170 171 CFATTACH_DECL(nhpib_intio, sizeof(struct nhpib_softc), 172 nhpib_intio_match, nhpib_intio_attach, NULL, NULL); 173 174 static int 175 nhpib_intio_match(struct device *parent, struct cfdata *match, void *aux) 176 { 177 struct intio_attach_args *ia = aux; 178 179 if (strcmp("hpib", ia->ia_modname) == 0) 180 return (1); 181 182 return (0); 183 } 184 185 static int 186 nhpib_dio_match(struct device *parent, struct cfdata *match, void *aux) 187 { 188 struct dio_attach_args *da = aux; 189 190 if (da->da_id == DIO_DEVICE_ID_NHPIB) 191 return (1); 192 193 return (0); 194 } 195 196 static void 197 nhpib_intio_attach(struct device *parent, struct device *self, void *aux) 198 { 199 struct nhpib_softc *sc = (struct nhpib_softc *)self; 200 struct intio_attach_args *ia = aux; 201 bus_space_tag_t bst = ia->ia_bst; 202 const char *desc = "internal HP-IB"; 203 204 if (bus_space_map(bst, ia->ia_iobase, INTIO_DEVSIZE, 0, &sc->sc_bsh)) { 205 printf(": can't map registers\n"); 206 return; 207 } 208 209 sc->sc_bst = bst; 210 sc->sc_myaddr = HPIBA_BA; 211 sc->sc_type = HPIBA; 212 213 nhpib_common_attach(sc, desc); 214 215 /* establish the interrupt handler */ 216 (void) intio_intr_establish(nhpibintr, sc, ia->ia_ipl, IPL_BIO); 217 } 218 219 static void 220 nhpib_dio_attach(struct device *parent, struct device *self, void *aux) 221 { 222 struct nhpib_softc *sc = (struct nhpib_softc *)self; 223 struct dio_attach_args *da = aux; 224 bus_space_tag_t bst = da->da_bst; 225 const char *desc = DIO_DEVICE_DESC_NHPIB; 226 227 if (bus_space_map(bst, da->da_addr, da->da_size, 0, &sc->sc_bsh)) { 228 printf(": can't map registers\n"); 229 return; 230 } 231 232 sc->sc_bst = bst; 233 /* read address off switches */ 234 sc->sc_myaddr = bus_space_read_1(sc->sc_bst, sc->sc_bsh, 5); 235 sc->sc_type = HPIBB; 236 237 nhpib_common_attach(sc, desc); 238 239 /* establish the interrupt handler */ 240 (void)dio_intr_establish(nhpibintr, sc, da->da_ipl, IPL_BIO); 241 } 242 243 static void 244 nhpib_common_attach(struct nhpib_softc *sc, const char *desc) 245 { 246 struct hpibdev_attach_args ha; 247 248 printf(": %s\n", desc); 249 250 sc->sc_regs = (struct nhpibdevice *)bus_space_vaddr(sc->sc_bst, 251 sc->sc_bsh); 252 253 callout_init(&sc->sc_read_ch); 254 callout_init(&sc->sc_ppwatch_ch); 255 256 ha.ha_ops = &nhpib_controller; 257 ha.ha_type = sc->sc_type; /* XXX */ 258 ha.ha_ba = sc->sc_myaddr; 259 ha.ha_softcpp = &sc->sc_hpibbus; /* XXX */ 260 (void)config_found((void *)sc, &ha, hpibdevprint); 261 } 262 263 static void 264 nhpibreset(struct hpibbus_softc *hs) 265 { 266 struct nhpib_softc *sc = 267 (struct nhpib_softc *)device_parent(&hs->sc_dev); 268 struct nhpibdevice *hd = sc->sc_regs; 269 270 hd->hpib_acr = AUX_SSWRST; 271 hd->hpib_ar = hs->sc_ba; 272 hd->hpib_lim = LIS_ERR; 273 hd->hpib_mim = 0; 274 hd->hpib_acr = AUX_CDAI; 275 hd->hpib_acr = AUX_CSHDW; 276 hd->hpib_acr = AUX_SSTD1; 277 hd->hpib_acr = AUX_SVSTD1; 278 hd->hpib_acr = AUX_CPP; 279 hd->hpib_acr = AUX_CHDFA; 280 hd->hpib_acr = AUX_CHDFE; 281 hd->hpib_acr = AUX_RHDF; 282 hd->hpib_acr = AUX_CSWRST; 283 nhpibifc(hd); 284 hd->hpib_ie = IDS_IE; 285 hd->hpib_data = C_DCL_P; 286 DELAY(100000); 287 } 288 289 static void 290 nhpibifc(struct nhpibdevice *hd) 291 { 292 hd->hpib_acr = AUX_TCA; 293 hd->hpib_acr = AUX_CSRE; 294 hd->hpib_acr = AUX_SSIC; 295 DELAY(100); 296 hd->hpib_acr = AUX_CSIC; 297 hd->hpib_acr = AUX_SSRE; 298 } 299 300 static int 301 nhpibsend(struct hpibbus_softc *hs, int slave, int sec, void *ptr, int origcnt) 302 { 303 struct nhpib_softc *sc = 304 (struct nhpib_softc *)device_parent(&hs->sc_dev); 305 struct nhpibdevice *hd = sc->sc_regs; 306 int cnt = origcnt; 307 char *addr = ptr; 308 309 hd->hpib_acr = AUX_TCA; 310 hd->hpib_data = C_UNL_P; 311 if (nhpibwait(hd, MIS_BO)) 312 goto senderror; 313 hd->hpib_data = talker_par[hs->sc_ba]; 314 hd->hpib_acr = AUX_STON; 315 if (nhpibwait(hd, MIS_BO)) 316 goto senderror; 317 hd->hpib_data = listnr_par[slave]; 318 if (nhpibwait(hd, MIS_BO)) 319 goto senderror; 320 if (sec >= 0 || sec == -2) { 321 if (sec == -2) /* selected device clear KLUDGE */ 322 hd->hpib_data = C_SDC_P; 323 else 324 hd->hpib_data = sec_par[sec]; 325 if (nhpibwait(hd, MIS_BO)) 326 goto senderror; 327 } 328 hd->hpib_acr = AUX_GTS; 329 if (cnt) { 330 while (--cnt > 0) { 331 hd->hpib_data = *addr++; 332 if (nhpibwait(hd, MIS_BO)) 333 goto senderror; 334 } 335 hd->hpib_acr = AUX_EOI; 336 hd->hpib_data = *addr; 337 if (nhpibwait(hd, MIS_BO)) 338 goto senderror; 339 hd->hpib_acr = AUX_TCA; 340 #if 0 341 /* 342 * May be causing 345 disks to hang due to interference 343 * with PPOLL mechanism. 344 */ 345 hd->hpib_data = C_UNL_P; 346 (void) nhpibwait(hd, MIS_BO); 347 #endif 348 } 349 return(origcnt); 350 351 senderror: 352 nhpibifc(hd); 353 return(origcnt - cnt - 1); 354 } 355 356 static int 357 nhpibrecv(struct hpibbus_softc *hs, int slave, int sec, void *ptr, int origcnt) 358 { 359 struct nhpib_softc *sc = 360 (struct nhpib_softc *)device_parent(&hs->sc_dev); 361 struct nhpibdevice *hd = sc->sc_regs; 362 int cnt = origcnt; 363 char *addr = ptr; 364 365 /* 366 * Slave < 0 implies continuation of a previous receive 367 * that probably timed out. 368 */ 369 if (slave >= 0) { 370 hd->hpib_acr = AUX_TCA; 371 hd->hpib_data = C_UNL_P; 372 if (nhpibwait(hd, MIS_BO)) 373 goto recverror; 374 hd->hpib_data = listnr_par[hs->sc_ba]; 375 hd->hpib_acr = AUX_SLON; 376 if (nhpibwait(hd, MIS_BO)) 377 goto recverror; 378 hd->hpib_data = talker_par[slave]; 379 if (nhpibwait(hd, MIS_BO)) 380 goto recverror; 381 if (sec >= 0) { 382 hd->hpib_data = sec_par[sec]; 383 if (nhpibwait(hd, MIS_BO)) 384 goto recverror; 385 } 386 hd->hpib_acr = AUX_RHDF; 387 hd->hpib_acr = AUX_GTS; 388 } 389 if (cnt) { 390 while (--cnt >= 0) { 391 if (nhpibwait(hd, MIS_BI)) 392 goto recvbyteserror; 393 *addr++ = hd->hpib_data; 394 } 395 hd->hpib_acr = AUX_TCA; 396 hd->hpib_data = (slave == 31) ? C_UNA_P : C_UNT_P; 397 (void) nhpibwait(hd, MIS_BO); 398 } 399 return(origcnt); 400 401 recverror: 402 nhpibifc(hd); 403 recvbyteserror: 404 return(origcnt - cnt - 1); 405 } 406 407 static void 408 nhpibgo(struct hpibbus_softc *hs, int slave, int sec, void *ptr, int count, 409 int rw, int timo) 410 { 411 struct nhpib_softc *sc = 412 (struct nhpib_softc *)device_parent(&hs->sc_dev); 413 struct nhpibdevice *hd = sc->sc_regs; 414 char *addr = ptr; 415 416 hs->sc_flags |= HPIBF_IO; 417 if (timo) 418 hs->sc_flags |= HPIBF_TIMO; 419 if (rw == B_READ) 420 hs->sc_flags |= HPIBF_READ; 421 #ifdef DEBUG 422 else if (hs->sc_flags & HPIBF_READ) { 423 printf("nhpibgo: HPIBF_READ still set\n"); 424 hs->sc_flags &= ~HPIBF_READ; 425 } 426 #endif 427 hs->sc_count = count; 428 hs->sc_addr = addr; 429 if (hs->sc_flags & HPIBF_READ) { 430 hs->sc_curcnt = count; 431 dmago(hs->sc_dq->dq_chan, addr, count, DMAGO_BYTE|DMAGO_READ); 432 nhpibrecv(hs, slave, sec, 0, 0); 433 hd->hpib_mim = MIS_END; 434 } else { 435 hd->hpib_mim = 0; 436 if (count < hpibdmathresh) { 437 hs->sc_curcnt = count; 438 nhpibsend(hs, slave, sec, addr, count); 439 nhpibdone(hs); 440 return; 441 } 442 hs->sc_curcnt = --count; 443 dmago(hs->sc_dq->dq_chan, addr, count, DMAGO_BYTE); 444 nhpibsend(hs, slave, sec, 0, 0); 445 } 446 hd->hpib_ie = IDS_IE | IDS_DMA(hs->sc_dq->dq_chan); 447 } 448 449 /* 450 * This timeout can only happen if a DMA read finishes DMAing with the read 451 * still pending (more data in read transaction than the driver was prepared 452 * to accept). At the moment, variable-record tape drives are the only things 453 * capabale of doing this. We repeat the necessary code from nhpibintr() - 454 * easier and quicker than calling nhpibintr() for this special case. 455 */ 456 static void 457 nhpibreadtimo(void *arg) 458 { 459 struct hpibbus_softc *hs = arg; 460 struct nhpib_softc *sc = 461 (struct nhpib_softc *)device_parent(&hs->sc_dev); 462 int s = splbio(); 463 464 if (hs->sc_flags & HPIBF_IO) { 465 struct nhpibdevice *hd = sc->sc_regs; 466 struct hpibqueue *hq; 467 468 hd->hpib_mim = 0; 469 hd->hpib_acr = AUX_TCA; 470 hs->sc_flags &= ~(HPIBF_DONE|HPIBF_IO|HPIBF_READ|HPIBF_TIMO); 471 dmafree(hs->sc_dq); 472 473 hq = hs->sc_queue.tqh_first; 474 (hq->hq_intr)(hq->hq_softc); 475 } 476 splx(s); 477 } 478 479 static void 480 nhpibdone(struct hpibbus_softc *hs) 481 { 482 struct nhpib_softc *sc = 483 (struct nhpib_softc *)device_parent(&hs->sc_dev); 484 struct nhpibdevice *hd = sc->sc_regs; 485 int cnt; 486 487 cnt = hs->sc_curcnt; 488 hs->sc_addr += cnt; 489 hs->sc_count -= cnt; 490 hs->sc_flags |= HPIBF_DONE; 491 hd->hpib_ie = IDS_IE; 492 if (hs->sc_flags & HPIBF_READ) { 493 if ((hs->sc_flags & HPIBF_TIMO) && 494 (hd->hpib_ids & IDS_IR) == 0) 495 callout_reset(&sc->sc_read_ch, hz >> 2, 496 nhpibreadtimo, hs); 497 } else { 498 if (hs->sc_count == 1) { 499 (void) nhpibwait(hd, MIS_BO); 500 hd->hpib_acr = AUX_EOI; 501 hd->hpib_data = *hs->sc_addr; 502 hd->hpib_mim = MIS_BO; 503 } 504 #ifdef DEBUG 505 else if (hs->sc_count) 506 panic("nhpibdone"); 507 #endif 508 } 509 } 510 511 static int 512 nhpibintr(void *arg) 513 { 514 struct nhpib_softc *sc = arg; 515 struct hpibbus_softc *hs = sc->sc_hpibbus; 516 struct nhpibdevice *hd = sc->sc_regs; 517 struct hpibqueue *hq; 518 int stat0; 519 int stat1; 520 521 #ifdef lint 522 if (stat1 = unit) return(1); 523 #endif 524 if ((hd->hpib_ids & IDS_IR) == 0) 525 return(0); 526 stat0 = hd->hpib_mis; 527 stat1 = hd->hpib_lis; 528 529 hq = hs->sc_queue.tqh_first; 530 531 if (hs->sc_flags & HPIBF_IO) { 532 hd->hpib_mim = 0; 533 if ((hs->sc_flags & HPIBF_DONE) == 0) { 534 hs->sc_flags &= ~HPIBF_TIMO; 535 dmastop(hs->sc_dq->dq_chan); 536 } else if (hs->sc_flags & HPIBF_TIMO) 537 callout_stop(&sc->sc_read_ch); 538 hd->hpib_acr = AUX_TCA; 539 hs->sc_flags &= ~(HPIBF_DONE|HPIBF_IO|HPIBF_READ|HPIBF_TIMO); 540 541 dmafree(hs->sc_dq); 542 (hq->hq_intr)(hq->hq_softc); 543 } else if (hs->sc_flags & HPIBF_PPOLL) { 544 hd->hpib_mim = 0; 545 stat0 = nhpibppoll(hs); 546 if (stat0 & (0x80 >> hq->hq_slave)) { 547 hs->sc_flags &= ~HPIBF_PPOLL; 548 (hq->hq_intr)(hq->hq_softc); 549 } 550 #ifdef DEBUG 551 else 552 printf("%s: PPOLL intr bad status %x\n", 553 hs->sc_dev.dv_xname, stat0); 554 #endif 555 } 556 return(1); 557 } 558 559 static int 560 nhpibppoll(struct hpibbus_softc *hs) 561 { 562 struct nhpib_softc *sc = 563 (struct nhpib_softc *)device_parent(&hs->sc_dev); 564 struct nhpibdevice *hd = sc->sc_regs; 565 int ppoll; 566 567 hd->hpib_acr = AUX_SPP; 568 DELAY(25); 569 ppoll = hd->hpib_cpt; 570 hd->hpib_acr = AUX_CPP; 571 return(ppoll); 572 } 573 574 #ifdef DEBUG 575 int nhpibreporttimo = 0; 576 #endif 577 578 static int 579 nhpibwait(struct nhpibdevice *hd, int x) 580 { 581 int timo = hpibtimeout; 582 583 while ((hd->hpib_mis & x) == 0 && --timo) 584 DELAY(1); 585 if (timo == 0) { 586 #ifdef DEBUG 587 if (nhpibreporttimo) 588 printf("hpib0: %s timo\n", x==MIS_BO?"OUT":"IN"); 589 #endif 590 return(-1); 591 } 592 return(0); 593 } 594 595 static void 596 nhpibppwatch(void *arg) 597 { 598 struct hpibbus_softc *hs = arg; 599 struct nhpib_softc *sc = 600 (struct nhpib_softc *)device_parent(&hs->sc_dev); 601 602 if ((hs->sc_flags & HPIBF_PPOLL) == 0) 603 return; 604 again: 605 if (nhpibppoll(hs) & (0x80 >> hs->sc_queue.tqh_first->hq_slave)) 606 sc->sc_regs->hpib_mim = MIS_BO; 607 else if (cold) 608 /* timeouts not working yet */ 609 goto again; 610 else 611 callout_reset(&sc->sc_ppwatch_ch, 1, nhpibppwatch, hs); 612 } 613
Indexes created Fri Sep 26 08:10:20 GMT 2025