rf.c revision 1.29
1 /* $NetBSD: rf.c,v 1.29 2014/08/04 14:20:33 ryoon Exp $ */ 2 /* 3 * Copyright (c) 2002 Jochen Kunz. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of Jochen Kunz may not be used to endorse or promote 15 * products derived from this software without specific prior 16 * written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY JOCHEN KUNZ 19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JOCHEN KUNZ 22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 /* 32 TODO: 33 - Better LBN bound checking, block padding for SD disks. 34 - Formatting / "Set Density" 35 - Better error handling / detailed error reason reporting. 36 */ 37 38 #include <sys/cdefs.h> 39 __KERNEL_RCSID(0, "$NetBSD: rf.c,v 1.29 2014/08/04 14:20:33 ryoon Exp $"); 40 41 /* autoconfig stuff */ 42 #include <sys/param.h> 43 #include <sys/device.h> 44 #include <sys/conf.h> 45 #include "locators.h" 46 #include "ioconf.h" 47 48 /* bus_space / bus_dma */ 49 #include <sys/bus.h> 50 51 /* UniBus / QBus specific stuff */ 52 #include <dev/qbus/ubavar.h> 53 54 /* disk interface */ 55 #include <sys/types.h> 56 #include <sys/disklabel.h> 57 #include <sys/disk.h> 58 59 /* general system data and functions */ 60 #include <sys/systm.h> 61 #include <sys/ioctl.h> 62 #include <sys/ioccom.h> 63 64 /* physio / buffer handling */ 65 #include <sys/buf.h> 66 #include <sys/bufq.h> 67 68 /* tsleep / sleep / wakeup */ 69 #include <sys/proc.h> 70 /* hz for above */ 71 #include <sys/kernel.h> 72 73 /* bitdefinitions for RX211 */ 74 #include <dev/qbus/rfreg.h> 75 76 77 #define RFS_DENS 0x0001 /* single or double density */ 78 #define RFS_AD 0x0002 /* density auto detect */ 79 #define RFS_NOTINIT 0x0000 /* not initialized */ 80 #define RFS_PROBING 0x0010 /* density detect / verify started */ 81 #define RFS_FBUF 0x0020 /* Fill Buffer */ 82 #define RFS_EBUF 0x0030 /* Empty Buffer */ 83 #define RFS_WSEC 0x0040 /* Write Sector */ 84 #define RFS_RSEC 0x0050 /* Read Sector */ 85 #define RFS_SMD 0x0060 /* Set Media Density */ 86 #define RFS_RSTAT 0x0070 /* Read Status */ 87 #define RFS_WDDS 0x0080 /* Write Deleted Data Sector */ 88 #define RFS_REC 0x0090 /* Read Error Code */ 89 #define RFS_IDLE 0x00a0 /* controller is idle */ 90 #define RFS_CMDS 0x00f0 /* command mask */ 91 #define RFS_OPEN_A 0x0100 /* partition a open */ 92 #define RFS_OPEN_B 0x0200 /* partition b open */ 93 #define RFS_OPEN_C 0x0400 /* partition c open */ 94 #define RFS_OPEN_MASK 0x0f00 /* mask for open partitions */ 95 #define RFS_OPEN_SHIFT 8 /* to shift 1 to get RFS_OPEN_A */ 96 #define RFS_SETCMD(rf, state) ((rf) = ((rf) & ~RFS_CMDS) | (state)) 97 98 99 100 /* autoconfig stuff */ 101 static int rfc_match(device_t, cfdata_t, void *); 102 static void rfc_attach(device_t, device_t, void *); 103 static int rf_match(device_t, cfdata_t, void *); 104 static void rf_attach(device_t, device_t, void *); 105 static int rf_print(void *, const char *); 106 107 /* device interface functions / interface to disk(9) */ 108 dev_type_open(rfopen); 109 dev_type_close(rfclose); 110 dev_type_read(rfread); 111 dev_type_write(rfwrite); 112 dev_type_ioctl(rfioctl); 113 dev_type_strategy(rfstrategy); 114 dev_type_dump(rfdump); 115 dev_type_size(rfsize); 116 117 118 /* Entries in block and character major device number switch table. */ 119 const struct bdevsw rf_bdevsw = { 120 .d_open = rfopen, 121 .d_close = rfclose, 122 .d_strategy = rfstrategy, 123 .d_ioctl = rfioctl, 124 .d_dump = rfdump, 125 .d_psize = rfsize, 126 .d_discard = nodiscard, 127 .d_flag = D_DISK 128 }; 129 130 const struct cdevsw rf_cdevsw = { 131 .d_open = rfopen, 132 .d_close = rfclose, 133 .d_read = rfread, 134 .d_write = rfwrite, 135 .d_ioctl = rfioctl, 136 .d_stop = nostop, 137 .d_tty = notty, 138 .d_poll = nopoll, 139 .d_mmap = nommap, 140 .d_kqfilter = nokqfilter, 141 .d_discard = nodiscard, 142 .d_flag = D_DISK 143 }; 144 145 146 147 struct rfc_softc { 148 device_t sc_dev; /* common device data */ 149 device_t sc_childs[2]; /* child devices */ 150 struct evcnt sc_intr_count; /* Interrupt counter for statistics */ 151 struct buf *sc_curbuf; /* buf that is currently in work */ 152 bus_space_tag_t sc_iot; /* bus_space I/O tag */ 153 bus_space_handle_t sc_ioh; /* bus_space I/O handle */ 154 bus_dma_tag_t sc_dmat; /* bus_dma DMA tag */ 155 bus_dmamap_t sc_dmam; /* bus_dma DMA map */ 156 void *sc_bufidx; /* current position in buffer data */ 157 int sc_curchild; /* child whos bufq is in work */ 158 int sc_bytesleft; /* bytes left to transfer */ 159 u_int8_t type; /* controller type, 1 or 2 */ 160 }; 161 162 163 164 CFATTACH_DECL_NEW( 165 rfc, 166 sizeof(struct rfc_softc), 167 rfc_match, 168 rfc_attach, 169 NULL, 170 NULL 171 ); 172 173 174 175 struct rf_softc { 176 device_t sc_dev; /* common device data */ 177 struct disk sc_disk; /* common disk device data */ 178 struct rfc_softc *sc_rfc; /* our parent */ 179 struct bufq_state *sc_bufq; /* queue of pending transfers */ 180 int sc_state; /* state of drive */ 181 u_int8_t sc_dnum; /* drive number, 0 or 1 */ 182 }; 183 184 185 186 CFATTACH_DECL_NEW( 187 rf, 188 sizeof(struct rf_softc), 189 rf_match, 190 rf_attach, 191 NULL, 192 NULL 193 ); 194 195 196 197 struct rfc_attach_args { 198 u_int8_t type; /* controller type, 1 or 2 */ 199 u_int8_t dnum; /* drive number, 0 or 1 */ 200 }; 201 202 203 204 const struct dkdriver rfdkdriver = { 205 rfstrategy 206 }; 207 208 209 210 /* helper functions */ 211 int rfc_sendcmd(struct rfc_softc *, int, int, int); 212 struct rf_softc* get_new_buf( struct rfc_softc *); 213 static void rfc_intr(void *); 214 215 216 217 /* 218 * Issue a reset command to the controller and look for the bits in 219 * RX2CS and RX2ES. 220 * RX2CS_RX02 and / or RX2CS_DD can be set, 221 * RX2ES has to be set, all other bits must be 0 222 */ 223 int 224 rfc_match(device_t parent, cfdata_t match, void *aux) 225 { 226 struct uba_attach_args *ua = aux; 227 int i; 228 229 /* Issue reset command. */ 230 bus_space_write_2(ua->ua_iot, ua->ua_ioh, RX2CS, RX2CS_INIT); 231 /* Wait for the controller to become ready, that is when 232 * RX2CS_DONE, RX2ES_RDY and RX2ES_ID are set. */ 233 for (i = 0 ; i < 20 ; i++) { 234 if ((bus_space_read_2(ua->ua_iot, ua->ua_ioh, RX2CS) 235 & RX2CS_DONE) != 0 236 && (bus_space_read_2(ua->ua_iot, ua->ua_ioh, RX2ES) 237 & (RX2ES_RDY | RX2ES_ID)) != 0) 238 break; 239 DELAY(100000); /* wait 100ms */ 240 } 241 /* 242 * Give up if the timeout has elapsed 243 * and the controller is not ready. 244 */ 245 if (i >= 20) 246 return(0); 247 /* 248 * Issue a Read Status command with interrupt enabled. 249 * The uba(4) driver wants to catch the interrupt to get the 250 * interrupt vector and level of the device 251 */ 252 bus_space_write_2(ua->ua_iot, ua->ua_ioh, RX2CS, 253 RX2CS_RSTAT | RX2CS_IE); 254 /* 255 * Wait for command to finish, ignore errors and 256 * abort if the controller does not respond within the timeout 257 */ 258 for (i = 0 ; i < 20 ; i++) { 259 if ((bus_space_read_2(ua->ua_iot, ua->ua_ioh, RX2CS) 260 & (RX2CS_DONE | RX2CS_IE)) != 0 261 && (bus_space_read_2(ua->ua_iot, ua->ua_ioh, RX2ES) 262 & RX2ES_RDY) != 0 ) 263 return(1); 264 DELAY(100000); /* wait 100ms */ 265 } 266 return(0); 267 } 268 269 270 271 /* #define RX02_PROBE 1 */ 272 #ifdef RX02_PROBE 273 /* 274 * Probe the density of an inserted floppy disk. 275 * This is done by reading a sector from disk. 276 * Return -1 on error, 0 on SD and 1 on DD. 277 */ 278 int rfcprobedens(struct rfc_softc *, int); 279 int 280 rfcprobedens(struct rfc_softc *rfc_sc, int dnum) 281 { 282 int dens_flag; 283 int i; 284 285 dens_flag = 0; 286 do { 287 bus_space_write_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, RX2CS, 288 RX2CS_RSEC | (dens_flag == 0 ? 0 : RX2CS_DD) 289 | (dnum == 0 ? 0 : RX2CS_US)); 290 /* 291 * Transfer request set? 292 * Wait 50us, the controller needs this time to setle 293 */ 294 DELAY(50); 295 if ((bus_space_read_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, RX2CS) 296 & RX2CS_TR) == 0) { 297 printf("%s: did not respond to Read Sector CMD(1)\n", 298 device_xname(rfc_sc->sc_dev)); 299 return(-1); 300 } 301 bus_space_write_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, RX2SA, 1); 302 /* Wait 50us, the controller needs this time to setle */ 303 DELAY(50); 304 if ((bus_space_read_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, RX2CS) 305 & RX2CS_TR) == 0) { 306 printf("%s: did not respond to Read Sector CMD(2)\n", 307 device_xname(rfc_sc->sc_dev)); 308 return(-1); 309 } 310 bus_space_write_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, RX2TA, 1); 311 /* Wait for the command to finish */ 312 for (i = 0 ; i < 200 ; i++) { 313 if ((bus_space_read_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, 314 RX2CS) & RX2CS_DONE) != 0) 315 break; 316 DELAY(10000); /* wait 10ms */ 317 } 318 if (i >= 200) { 319 printf("%s: did not respond to Read Sector CMD(3)\n", 320 device_xname(rfc_sc->sc_dev)); 321 return(-1); 322 } 323 if ((bus_space_read_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, RX2CS) 324 & RX2CS_ERR) == 0) 325 return(dens_flag); 326 } while (rfc_sc->type == 2 && dens_flag++ == 0); 327 return(-1); 328 } 329 #endif /* RX02_PROBE */ 330 331 332 333 void 334 rfc_attach(device_t parent, device_t self, void *aux) 335 { 336 struct rfc_softc *rfc_sc = device_private(self); 337 struct uba_attach_args *ua = aux; 338 struct rfc_attach_args rfc_aa; 339 int i; 340 341 rfc_sc->sc_dev = self; 342 rfc_sc->sc_iot = ua->ua_iot; 343 rfc_sc->sc_ioh = ua->ua_ioh; 344 rfc_sc->sc_dmat = ua->ua_dmat; 345 rfc_sc->sc_curbuf = NULL; 346 /* Tell the QBus busdriver about our interrupt handler. */ 347 uba_intr_establish(ua->ua_icookie, ua->ua_cvec, rfc_intr, rfc_sc, 348 &rfc_sc->sc_intr_count); 349 /* Attach to the interrupt counter, see evcnt(9) */ 350 evcnt_attach_dynamic(&rfc_sc->sc_intr_count, EVCNT_TYPE_INTR, 351 ua->ua_evcnt, device_xname(rfc_sc->sc_dev), "intr"); 352 /* get a bus_dma(9) handle */ 353 i = bus_dmamap_create(rfc_sc->sc_dmat, RX2_BYTE_DD, 1, RX2_BYTE_DD, 0, 354 BUS_DMA_ALLOCNOW, &rfc_sc->sc_dmam); 355 if (i != 0) { 356 printf("rfc_attach: Error creating bus dma map: %d\n", i); 357 return; 358 } 359 360 /* Issue reset command. */ 361 bus_space_write_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, RX2CS, RX2CS_INIT); 362 /* 363 * Wait for the controller to become ready, that is when 364 * RX2CS_DONE, RX2ES_RDY and RX2ES_ID are set. 365 */ 366 for (i = 0 ; i < 20 ; i++) { 367 if ((bus_space_read_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, RX2CS) 368 & RX2CS_DONE) != 0 369 && (bus_space_read_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, RX2ES) 370 & (RX2ES_RDY | RX2ES_ID)) != 0) 371 break; 372 DELAY(100000); /* wait 100ms */ 373 } 374 /* 375 * Give up if the timeout has elapsed 376 * and the controller is not ready. 377 */ 378 if (i >= 20) { 379 printf(": did not respond to INIT CMD\n"); 380 return; 381 } 382 /* Is ths a RX01 or a RX02? */ 383 if ((bus_space_read_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, RX2CS) 384 & RX2CS_RX02) != 0) { 385 rfc_sc->type = 2; 386 rfc_aa.type = 2; 387 } else { 388 rfc_sc->type = 1; 389 rfc_aa.type = 1; 390 } 391 printf(": RX0%d\n", rfc_sc->type); 392 393 #ifndef RX02_PROBE 394 /* 395 * Bouth disk drievs and the controller are one physical unit. 396 * If we found the controller, there will be bouth disk drievs. 397 * So attach them. 398 */ 399 rfc_aa.dnum = 0; 400 rfc_sc->sc_childs[0] = config_found(rfc_sc->sc_dev, &rfc_aa, rf_print); 401 rfc_aa.dnum = 1; 402 rfc_sc->sc_childs[1] = config_found(rfc_sc->sc_dev, &rfc_aa, rf_print); 403 #else /* RX02_PROBE */ 404 /* 405 * There are clones of the DEC RX system with standard shugart 406 * interface. In this case we can not be sure that there are 407 * bouth disk drievs. So we want to do a detection of attached 408 * drives. This is done by reading a sector from disk. This means 409 * that there must be a formatted disk in the drive at boot time. 410 * This is bad, but I did not find another way to detect the 411 * (non)existence of a floppy drive. 412 */ 413 if (rfcprobedens(rfc_sc, 0) >= 0) { 414 rfc_aa.dnum = 0; 415 rfc_sc->sc_childs[0] = config_found(rfc_sc->sc_dev, &rfc_aa, 416 rf_print); 417 } else 418 rfc_sc->sc_childs[0] = NULL; 419 if (rfcprobedens(rfc_sc, 1) >= 0) { 420 rfc_aa.dnum = 1; 421 rfc_sc->sc_childs[1] = config_found(rfc_sc->sc_dev, &rfc_aa, 422 rf_print); 423 } else 424 rfc_sc->sc_childs[1] = NULL; 425 #endif /* RX02_PROBE */ 426 return; 427 } 428 429 430 431 int 432 rf_match(device_t parent, cfdata_t match, void *aux) 433 { 434 struct rfc_attach_args *rfc_aa = aux; 435 436 /* 437 * Only attach if the locator is wildcarded or 438 * if the specified locator addresses the current device. 439 */ 440 if (match->cf_loc[RFCCF_DRIVE] == RFCCF_DRIVE_DEFAULT || 441 match->cf_loc[RFCCF_DRIVE] == rfc_aa->dnum) 442 return(1); 443 return(0); 444 } 445 446 447 448 void 449 rf_attach(device_t parent, device_t self, void *aux) 450 { 451 struct rf_softc *rf_sc = device_private(self); 452 struct rfc_softc *rfc_sc = device_private(parent); 453 struct rfc_attach_args *rfc_aa = (struct rfc_attach_args *)aux; 454 struct disklabel *dl; 455 456 rf_sc->sc_dev = self; 457 rf_sc->sc_rfc = rfc_sc; 458 rf_sc->sc_dnum = rfc_aa->dnum; 459 rf_sc->sc_state = 0; 460 disk_init(&rf_sc->sc_disk, device_xname(rf_sc->sc_dev), &rfdkdriver); 461 disk_attach(&rf_sc->sc_disk); 462 dl = rf_sc->sc_disk.dk_label; 463 dl->d_type = DTYPE_FLOPPY; /* drive type */ 464 dl->d_magic = DISKMAGIC; /* the magic number */ 465 dl->d_magic2 = DISKMAGIC; 466 dl->d_typename[0] = 'R'; 467 dl->d_typename[1] = 'X'; 468 dl->d_typename[2] = '0'; 469 dl->d_typename[3] = rfc_sc->type == 1 ? '1' : '2'; /* type name */ 470 dl->d_typename[4] = '\0'; 471 dl->d_secsize = DEV_BSIZE; /* bytes per sector */ 472 /* 473 * Fill in some values to have a initialized data structure. Some 474 * values will be reset by rfopen() depending on the actual density. 475 */ 476 dl->d_nsectors = RX2_SECTORS; /* sectors per track */ 477 dl->d_ntracks = 1; /* tracks per cylinder */ 478 dl->d_ncylinders = RX2_TRACKS; /* cylinders per unit */ 479 dl->d_secpercyl = RX2_SECTORS; /* sectors per cylinder */ 480 dl->d_secperunit = RX2_SECTORS * RX2_TRACKS; /* sectors per unit */ 481 dl->d_rpm = 360; /* rotational speed */ 482 dl->d_interleave = 1; /* hardware sector interleave */ 483 /* number of partitions in following */ 484 dl->d_npartitions = MAXPARTITIONS; 485 dl->d_bbsize = 0; /* size of boot area at sn0, bytes */ 486 dl->d_sbsize = 0; /* max size of fs superblock, bytes */ 487 /* number of sectors in partition */ 488 dl->d_partitions[0].p_size = 501; 489 dl->d_partitions[0].p_offset = 0; /* starting sector */ 490 dl->d_partitions[0].p_fsize = 0; /* fs basic fragment size */ 491 dl->d_partitions[0].p_fstype = 0; /* fs type */ 492 dl->d_partitions[0].p_frag = 0; /* fs fragments per block */ 493 dl->d_partitions[1].p_size = RX2_SECTORS * RX2_TRACKS / 2; 494 dl->d_partitions[1].p_offset = 0; /* starting sector */ 495 dl->d_partitions[1].p_fsize = 0; /* fs basic fragment size */ 496 dl->d_partitions[1].p_fstype = 0; /* fs type */ 497 dl->d_partitions[1].p_frag = 0; /* fs fragments per block */ 498 dl->d_partitions[2].p_size = RX2_SECTORS * RX2_TRACKS; 499 dl->d_partitions[2].p_offset = 0; /* starting sector */ 500 dl->d_partitions[2].p_fsize = 0; /* fs basic fragment size */ 501 dl->d_partitions[2].p_fstype = 0; /* fs type */ 502 dl->d_partitions[2].p_frag = 0; /* fs fragments per block */ 503 bufq_alloc(&rf_sc->sc_bufq, "disksort", BUFQ_SORT_CYLINDER); 504 printf("\n"); 505 return; 506 } 507 508 509 510 int 511 rf_print(void *aux, const char *name) 512 { 513 struct rfc_attach_args *rfc_aa = aux; 514 515 if (name != NULL) 516 aprint_normal("RX0%d at %s", rfc_aa->type, name); 517 aprint_normal(" drive %d", rfc_aa->dnum); 518 return(UNCONF); 519 } 520 521 522 523 /* Send a command to the controller */ 524 int 525 rfc_sendcmd(struct rfc_softc *rfc_sc, int cmd, int data1, int data2) 526 { 527 528 /* Write command to CSR. */ 529 bus_space_write_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, RX2CS, cmd); 530 /* Wait 50us, the controller needs this time to setle. */ 531 DELAY(50); 532 /* Write parameter 1 to DBR */ 533 if ((cmd & RX2CS_FC) != RX2CS_RSTAT) { 534 /* Transfer request set? */ 535 if ((bus_space_read_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, RX2CS) 536 & RX2CS_TR) == 0) { 537 printf("%s: did not respond to CMD %x (1)\n", 538 device_xname(rfc_sc->sc_dev), cmd); 539 return(-1); 540 } 541 bus_space_write_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, RX2DB, 542 data1); 543 } 544 /* Write parameter 2 to DBR */ 545 if ((cmd & RX2CS_FC) <= RX2CS_RSEC || (cmd & RX2CS_FC) == RX2CS_WDDS) { 546 /* Wait 50us, the controller needs this time to setle. */ 547 DELAY(50); 548 /* Transfer request set? */ 549 if ((bus_space_read_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, RX2CS) 550 & RX2CS_TR) == 0) { 551 printf("%s: did not respond to CMD %x (2)\n", 552 device_xname(rfc_sc->sc_dev), cmd); 553 return(-1); 554 } 555 bus_space_write_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, RX2DB, 556 data2); 557 } 558 return(1); 559 } 560 561 562 563 void 564 rfstrategy(struct buf *buf) 565 { 566 struct rf_softc *rf_sc; 567 struct rfc_softc *rfc_sc; 568 int s; 569 570 if ((rf_sc = device_lookup_private(&rf_cd, DISKUNIT(buf->b_dev))) == NULL) { 571 buf->b_error = ENXIO; 572 biodone(buf); 573 return; 574 } 575 rfc_sc = rf_sc->sc_rfc; 576 /* We are going to operate on a non-open dev? PANIC! */ 577 if ((rf_sc->sc_state & (1 << (DISKPART(buf->b_dev) + RFS_OPEN_SHIFT))) 578 == 0) 579 panic("rfstrategy: can not operate on non-open drive %s " 580 "partition %"PRIu32, device_xname(rf_sc->sc_dev), 581 DISKPART(buf->b_dev)); 582 if (buf->b_bcount == 0) { 583 biodone(buf); 584 return; 585 } 586 /* 587 * bufq_put() operates on b_rawblkno. rfstrategy() gets 588 * only b_blkno that is partition relative. As a floppy does not 589 * have partitions b_rawblkno == b_blkno. 590 */ 591 buf->b_rawblkno = buf->b_blkno; 592 /* 593 * from sys/kern/subr_disk.c: 594 * Seek sort for disks. We depend on the driver which calls us using 595 * b_resid as the current cylinder number. 596 */ 597 s = splbio(); 598 if (rfc_sc->sc_curbuf == NULL) { 599 rfc_sc->sc_curchild = rf_sc->sc_dnum; 600 rfc_sc->sc_curbuf = buf; 601 rfc_sc->sc_bufidx = buf->b_data; 602 rfc_sc->sc_bytesleft = buf->b_bcount; 603 rfc_intr(rfc_sc); 604 } else { 605 buf->b_resid = buf->b_blkno / RX2_SECTORS; 606 bufq_put(rf_sc->sc_bufq, buf); 607 buf->b_resid = 0; 608 } 609 splx(s); 610 } 611 612 /* 613 * Look if there is another buffer in the bufferqueue of this drive 614 * and start to process it if there is one. 615 * If the bufferqueue is empty, look at the bufferqueue of the other drive 616 * that is attached to this controller. 617 * Start procesing the bufferqueue of the other drive if it isn't empty. 618 * Return a pointer to the softc structure of the drive that is now 619 * ready to process a buffer or NULL if there is no buffer in either queues. 620 */ 621 struct rf_softc* 622 get_new_buf( struct rfc_softc *rfc_sc) 623 { 624 struct rf_softc *rf_sc; 625 struct rf_softc *other_drive; 626 627 rf_sc = device_private(rfc_sc->sc_childs[rfc_sc->sc_curchild]); 628 rfc_sc->sc_curbuf = bufq_get(rf_sc->sc_bufq); 629 if (rfc_sc->sc_curbuf != NULL) { 630 rfc_sc->sc_bufidx = rfc_sc->sc_curbuf->b_data; 631 rfc_sc->sc_bytesleft = rfc_sc->sc_curbuf->b_bcount; 632 } else { 633 RFS_SETCMD(rf_sc->sc_state, RFS_IDLE); 634 other_drive = device_private( 635 rfc_sc->sc_childs[ rfc_sc->sc_curchild == 0 ? 1 : 0]); 636 if (other_drive != NULL 637 && bufq_peek(other_drive->sc_bufq) != NULL) { 638 rfc_sc->sc_curchild = rfc_sc->sc_curchild == 0 ? 1 : 0; 639 rf_sc = other_drive; 640 rfc_sc->sc_curbuf = bufq_get(rf_sc->sc_bufq); 641 rfc_sc->sc_bufidx = rfc_sc->sc_curbuf->b_data; 642 rfc_sc->sc_bytesleft = rfc_sc->sc_curbuf->b_bcount; 643 } else 644 return(NULL); 645 } 646 return(rf_sc); 647 } 648 649 650 651 void 652 rfc_intr(void *intarg) 653 { 654 struct rfc_softc *rfc_sc = intarg; 655 struct rf_softc *rf_sc; 656 int i; 657 658 rf_sc = device_private(rfc_sc->sc_childs[rfc_sc->sc_curchild]); 659 for (;;) { 660 /* 661 * First clean up from previous command... 662 */ 663 switch (rf_sc->sc_state & RFS_CMDS) { 664 case RFS_PROBING: /* density detect / verify started */ 665 disk_unbusy(&rf_sc->sc_disk, 0, 1); 666 if ((bus_space_read_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, 667 RX2CS) & RX2CS_ERR) == 0) { 668 RFS_SETCMD(rf_sc->sc_state, RFS_IDLE); 669 wakeup(rf_sc); 670 } else { 671 if (rfc_sc->type == 2 672 && (rf_sc->sc_state & RFS_DENS) == 0 673 && (rf_sc->sc_state & RFS_AD) != 0) { 674 /* retry at DD */ 675 rf_sc->sc_state |= RFS_DENS; 676 disk_busy(&rf_sc->sc_disk); 677 if (rfc_sendcmd(rfc_sc, RX2CS_RSEC 678 | RX2CS_IE | RX2CS_DD | 679 (rf_sc->sc_dnum == 0 ? 0 : 680 RX2CS_US), 1, 1) < 0) { 681 disk_unbusy(&rf_sc->sc_disk, 682 0, 1); 683 RFS_SETCMD(rf_sc->sc_state, 684 RFS_NOTINIT); 685 wakeup(rf_sc); 686 } 687 } else { 688 printf("%s: density error.\n", 689 device_xname(rf_sc->sc_dev)); 690 RFS_SETCMD(rf_sc->sc_state,RFS_NOTINIT); 691 wakeup(rf_sc); 692 } 693 } 694 return; 695 case RFS_IDLE: /* controller is idle */ 696 if (rfc_sc->sc_curbuf->b_bcount 697 % ((rf_sc->sc_state & RFS_DENS) == 0 698 ? RX2_BYTE_SD : RX2_BYTE_DD) != 0) { 699 /* 700 * can only handle blocks that are a multiple 701 * of the physical block size 702 */ 703 rfc_sc->sc_curbuf->b_error = EIO; 704 } 705 RFS_SETCMD(rf_sc->sc_state, (rfc_sc->sc_curbuf->b_flags 706 & B_READ) != 0 ? RFS_RSEC : RFS_FBUF); 707 break; 708 case RFS_RSEC: /* Read Sector */ 709 disk_unbusy(&rf_sc->sc_disk, 0, 1); 710 /* check for errors */ 711 if ((bus_space_read_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, 712 RX2CS) & RX2CS_ERR) != 0) { 713 /* should do more verbose error reporting */ 714 printf("rfc_intr: Error reading secotr: %x\n", 715 bus_space_read_2(rfc_sc->sc_iot, 716 rfc_sc->sc_ioh, RX2ES) ); 717 rfc_sc->sc_curbuf->b_error = EIO; 718 } 719 RFS_SETCMD(rf_sc->sc_state, RFS_EBUF); 720 break; 721 case RFS_WSEC: /* Write Sector */ 722 i = (rf_sc->sc_state & RFS_DENS) == 0 723 ? RX2_BYTE_SD : RX2_BYTE_DD; 724 disk_unbusy(&rf_sc->sc_disk, i, 0); 725 /* check for errors */ 726 if ((bus_space_read_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, 727 RX2CS) & RX2CS_ERR) != 0) { 728 /* should do more verbose error reporting */ 729 printf("rfc_intr: Error writing secotr: %x\n", 730 bus_space_read_2(rfc_sc->sc_iot, 731 rfc_sc->sc_ioh, RX2ES) ); 732 rfc_sc->sc_curbuf->b_error = EIO; 733 break; 734 } 735 if (rfc_sc->sc_bytesleft > i) { 736 rfc_sc->sc_bytesleft -= i; 737 rfc_sc->sc_bufidx = 738 (char *)rfc_sc->sc_bufidx + i; 739 } else { 740 biodone(rfc_sc->sc_curbuf); 741 rf_sc = get_new_buf( rfc_sc); 742 if (rf_sc == NULL) 743 return; 744 } 745 RFS_SETCMD(rf_sc->sc_state, 746 (rfc_sc->sc_curbuf->b_flags & B_READ) != 0 747 ? RFS_RSEC : RFS_FBUF); 748 break; 749 case RFS_FBUF: /* Fill Buffer */ 750 disk_unbusy(&rf_sc->sc_disk, 0, 0); 751 bus_dmamap_unload(rfc_sc->sc_dmat, rfc_sc->sc_dmam); 752 /* check for errors */ 753 if ((bus_space_read_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, 754 RX2CS) & RX2CS_ERR) != 0) { 755 /* should do more verbose error reporting */ 756 printf("rfc_intr: Error while DMA: %x\n", 757 bus_space_read_2(rfc_sc->sc_iot, 758 rfc_sc->sc_ioh, RX2ES)); 759 rfc_sc->sc_curbuf->b_error = EIO; 760 } 761 RFS_SETCMD(rf_sc->sc_state, RFS_WSEC); 762 break; 763 case RFS_EBUF: /* Empty Buffer */ 764 i = (rf_sc->sc_state & RFS_DENS) == 0 765 ? RX2_BYTE_SD : RX2_BYTE_DD; 766 disk_unbusy(&rf_sc->sc_disk, i, 1); 767 bus_dmamap_unload(rfc_sc->sc_dmat, rfc_sc->sc_dmam); 768 /* check for errors */ 769 if ((bus_space_read_2(rfc_sc->sc_iot, rfc_sc->sc_ioh, 770 RX2CS) & RX2CS_ERR) != 0) { 771 /* should do more verbose error reporting */ 772 printf("rfc_intr: Error while DMA: %x\n", 773 bus_space_read_2(rfc_sc->sc_iot, 774 rfc_sc->sc_ioh, RX2ES)); 775 rfc_sc->sc_curbuf->b_error = EIO; 776 break; 777 } 778 if (rfc_sc->sc_bytesleft > i) { 779 rfc_sc->sc_bytesleft -= i; 780 rfc_sc->sc_bufidx = 781 (char *)rfc_sc->sc_bufidx + i; 782 } else { 783 biodone(rfc_sc->sc_curbuf); 784 rf_sc = get_new_buf( rfc_sc); 785 if (rf_sc == NULL) 786 return; 787 } 788 RFS_SETCMD(rf_sc->sc_state, 789 (rfc_sc->sc_curbuf->b_flags & B_READ) != 0 790 ? RFS_RSEC : RFS_FBUF); 791 break; 792 case RFS_NOTINIT: /* Device is not open */ 793 case RFS_SMD: /* Set Media Density */ 794 case RFS_RSTAT: /* Read Status */ 795 case RFS_WDDS: /* Write Deleted Data Sector */ 796 case RFS_REC: /* Read Error Code */ 797 default: 798 panic("Impossible state in rfc_intr(1): 0x%x\n", 799 rf_sc->sc_state & RFS_CMDS); 800 } 801 802 if (rfc_sc->sc_curbuf->b_error != 0) { 803 /* 804 * An error occurred while processing this buffer. 805 * Finish it and try to get a new buffer to process. 806 * Return if there are no buffers in the queues. 807 * This loops until the queues are empty or a new 808 * action was successfully scheduled. 809 */ 810 rfc_sc->sc_curbuf->b_resid = rfc_sc->sc_bytesleft; 811 rfc_sc->sc_curbuf->b_error = EIO; 812 biodone(rfc_sc->sc_curbuf); 813 rf_sc = get_new_buf( rfc_sc); 814 if (rf_sc == NULL) 815 return; 816 continue; 817 } 818 819 /* 820 * ... then initiate next command. 821 */ 822 switch (rf_sc->sc_state & RFS_CMDS) { 823 case RFS_EBUF: /* Empty Buffer */ 824 i = bus_dmamap_load(rfc_sc->sc_dmat, rfc_sc->sc_dmam, 825 rfc_sc->sc_bufidx, (rf_sc->sc_state & RFS_DENS) == 0 826 ? RX2_BYTE_SD : RX2_BYTE_DD, 827 rfc_sc->sc_curbuf->b_proc, BUS_DMA_NOWAIT); 828 if (i != 0) { 829 printf("rfc_intr: Error loading dmamap: %d\n", 830 i); 831 rfc_sc->sc_curbuf->b_error = EIO; 832 break; 833 } 834 disk_busy(&rf_sc->sc_disk); 835 if (rfc_sendcmd(rfc_sc, RX2CS_EBUF | RX2CS_IE 836 | ((rf_sc->sc_state & RFS_DENS) == 0 ? 0 : RX2CS_DD) 837 | (rf_sc->sc_dnum == 0 ? 0 : RX2CS_US) 838 | ((rfc_sc->sc_dmam->dm_segs[0].ds_addr 839 & 0x30000) >>4), ((rf_sc->sc_state & RFS_DENS) == 0 840 ? RX2_BYTE_SD : RX2_BYTE_DD) / 2, 841 rfc_sc->sc_dmam->dm_segs[0].ds_addr & 0xffff) < 0) { 842 disk_unbusy(&rf_sc->sc_disk, 0, 1); 843 rfc_sc->sc_curbuf->b_error = EIO; 844 bus_dmamap_unload(rfc_sc->sc_dmat, 845 rfc_sc->sc_dmam); 846 } 847 break; 848 case RFS_FBUF: /* Fill Buffer */ 849 i = bus_dmamap_load(rfc_sc->sc_dmat, rfc_sc->sc_dmam, 850 rfc_sc->sc_bufidx, (rf_sc->sc_state & RFS_DENS) == 0 851 ? RX2_BYTE_SD : RX2_BYTE_DD, 852 rfc_sc->sc_curbuf->b_proc, BUS_DMA_NOWAIT); 853 if (i != 0) { 854 printf("rfc_intr: Error loading dmamap: %d\n", 855 i); 856 rfc_sc->sc_curbuf->b_error = EIO; 857 break; 858 } 859 disk_busy(&rf_sc->sc_disk); 860 if (rfc_sendcmd(rfc_sc, RX2CS_FBUF | RX2CS_IE 861 | ((rf_sc->sc_state & RFS_DENS) == 0 ? 0 : RX2CS_DD) 862 | (rf_sc->sc_dnum == 0 ? 0 : RX2CS_US) 863 | ((rfc_sc->sc_dmam->dm_segs[0].ds_addr 864 & 0x30000)>>4), ((rf_sc->sc_state & RFS_DENS) == 0 865 ? RX2_BYTE_SD : RX2_BYTE_DD) / 2, 866 rfc_sc->sc_dmam->dm_segs[0].ds_addr & 0xffff) < 0) { 867 disk_unbusy(&rf_sc->sc_disk, 0, 0); 868 rfc_sc->sc_curbuf->b_error = EIO; 869 bus_dmamap_unload(rfc_sc->sc_dmat, 870 rfc_sc->sc_dmam); 871 } 872 break; 873 case RFS_WSEC: /* Write Sector */ 874 i = (rfc_sc->sc_curbuf->b_bcount - rfc_sc->sc_bytesleft 875 + rfc_sc->sc_curbuf->b_blkno * DEV_BSIZE) / 876 ((rf_sc->sc_state & RFS_DENS) == 0 877 ? RX2_BYTE_SD : RX2_BYTE_DD); 878 if (i > RX2_TRACKS * RX2_SECTORS) { 879 rfc_sc->sc_curbuf->b_error = EIO; 880 break; 881 } 882 disk_busy(&rf_sc->sc_disk); 883 if (rfc_sendcmd(rfc_sc, RX2CS_WSEC | RX2CS_IE 884 | (rf_sc->sc_dnum == 0 ? 0 : RX2CS_US) 885 | ((rf_sc->sc_state& RFS_DENS) == 0 ? 0 : RX2CS_DD), 886 i % RX2_SECTORS + 1, i / RX2_SECTORS) < 0) { 887 disk_unbusy(&rf_sc->sc_disk, 0, 0); 888 rfc_sc->sc_curbuf->b_error = EIO; 889 } 890 break; 891 case RFS_RSEC: /* Read Sector */ 892 i = (rfc_sc->sc_curbuf->b_bcount - rfc_sc->sc_bytesleft 893 + rfc_sc->sc_curbuf->b_blkno * DEV_BSIZE) / 894 ((rf_sc->sc_state & RFS_DENS) == 0 895 ? RX2_BYTE_SD : RX2_BYTE_DD); 896 if (i > RX2_TRACKS * RX2_SECTORS) { 897 rfc_sc->sc_curbuf->b_error = EIO; 898 break; 899 } 900 disk_busy(&rf_sc->sc_disk); 901 if (rfc_sendcmd(rfc_sc, RX2CS_RSEC | RX2CS_IE 902 | (rf_sc->sc_dnum == 0 ? 0 : RX2CS_US) 903 | ((rf_sc->sc_state& RFS_DENS) == 0 ? 0 : RX2CS_DD), 904 i % RX2_SECTORS + 1, i / RX2_SECTORS) < 0) { 905 disk_unbusy(&rf_sc->sc_disk, 0, 1); 906 rfc_sc->sc_curbuf->b_error = EIO; 907 } 908 break; 909 case RFS_NOTINIT: /* Device is not open */ 910 case RFS_PROBING: /* density detect / verify started */ 911 case RFS_IDLE: /* controller is idle */ 912 case RFS_SMD: /* Set Media Density */ 913 case RFS_RSTAT: /* Read Status */ 914 case RFS_WDDS: /* Write Deleted Data Sector */ 915 case RFS_REC: /* Read Error Code */ 916 default: 917 panic("Impossible state in rfc_intr(2): 0x%x\n", 918 rf_sc->sc_state & RFS_CMDS); 919 } 920 921 if (rfc_sc->sc_curbuf->b_error != 0) { 922 /* 923 * An error occurred while processing this buffer. 924 * Finish it and try to get a new buffer to process. 925 * Return if there are no buffers in the queues. 926 * This loops until the queues are empty or a new 927 * action was successfully scheduled. 928 */ 929 rfc_sc->sc_curbuf->b_resid = rfc_sc->sc_bytesleft; 930 rfc_sc->sc_curbuf->b_error = EIO; 931 biodone(rfc_sc->sc_curbuf); 932 rf_sc = get_new_buf( rfc_sc); 933 if (rf_sc == NULL) 934 return; 935 continue; 936 } 937 break; 938 } 939 return; 940 } 941 942 943 944 int 945 rfdump(dev_t dev, daddr_t blkno, void *va, size_t size) 946 { 947 948 /* A 0.5MB floppy is much to small to take a system dump... */ 949 return(ENXIO); 950 } 951 952 953 954 int 955 rfsize(dev_t dev) 956 { 957 958 return(-1); 959 } 960 961 962 963 int 964 rfopen(dev_t dev, int oflags, int devtype, struct lwp *l) 965 { 966 struct rf_softc *rf_sc; 967 struct rfc_softc *rfc_sc; 968 struct disklabel *dl; 969 970 if ((rf_sc = device_lookup_private(&rf_cd, DISKUNIT(dev))) == NULL) 971 return ENXIO; 972 973 rfc_sc = rf_sc->sc_rfc; 974 dl = rf_sc->sc_disk.dk_label; 975 switch (DISKPART(dev)) { 976 case 0: /* Part. a is single density. */ 977 /* opening in single and double density is senseless */ 978 if ((rf_sc->sc_state & RFS_OPEN_B) != 0 ) 979 return(ENXIO); 980 rf_sc->sc_state &= ~RFS_DENS; 981 rf_sc->sc_state &= ~RFS_AD; 982 rf_sc->sc_state |= RFS_OPEN_A; 983 break; 984 case 1: /* Part. b is double density. */ 985 /* 986 * Opening a single density only drive in double 987 * density or simultaneous opening in single and 988 * double density is senseless. 989 */ 990 if (rfc_sc->type == 1 991 || (rf_sc->sc_state & RFS_OPEN_A) != 0 ) 992 return(ENXIO); 993 rf_sc->sc_state |= RFS_DENS; 994 rf_sc->sc_state &= ~RFS_AD; 995 rf_sc->sc_state |= RFS_OPEN_B; 996 break; 997 case 2: /* Part. c is auto density. */ 998 rf_sc->sc_state |= RFS_AD; 999 rf_sc->sc_state |= RFS_OPEN_C; 1000 break; 1001 default: 1002 return(ENXIO); 1003 break; 1004 } 1005 if ((rf_sc->sc_state & RFS_CMDS) == RFS_NOTINIT) { 1006 rfc_sc->sc_curchild = rf_sc->sc_dnum; 1007 /* 1008 * Controller is idle and density is not detected. 1009 * Start a density probe by issuing a read sector command 1010 * and sleep until the density probe finished. 1011 * Due to this it is imposible to open unformatted media. 1012 * As the RX02/02 is not able to format its own media, 1013 * media must be purchased preformatted. fsck DEC makreting! 1014 */ 1015 RFS_SETCMD(rf_sc->sc_state, RFS_PROBING); 1016 disk_busy(&rf_sc->sc_disk); 1017 if (rfc_sendcmd(rfc_sc, RX2CS_RSEC | RX2CS_IE 1018 | (rf_sc->sc_dnum == 0 ? 0 : RX2CS_US) 1019 | ((rf_sc->sc_state & RFS_DENS) == 0 ? 0 : RX2CS_DD), 1020 1, 1) < 0) { 1021 rf_sc->sc_state = 0; 1022 return(ENXIO); 1023 } 1024 /* wait max. 2 sec for density probe to finish */ 1025 if (tsleep(rf_sc, PRIBIO | PCATCH, "density probe", 2 * hz) 1026 != 0 || (rf_sc->sc_state & RFS_CMDS) == RFS_NOTINIT) { 1027 /* timeout elapsed and / or something went wrong */ 1028 rf_sc->sc_state = 0; 1029 return(ENXIO); 1030 } 1031 } 1032 /* disklabel. We use different fake geometries for SD and DD. */ 1033 if ((rf_sc->sc_state & RFS_DENS) == 0) { 1034 dl->d_nsectors = 10; /* sectors per track */ 1035 dl->d_secpercyl = 10; /* sectors per cylinder */ 1036 dl->d_ncylinders = 50; /* cylinders per unit */ 1037 dl->d_secperunit = 501; /* sectors per unit */ 1038 /* number of sectors in partition */ 1039 dl->d_partitions[2].p_size = 500; 1040 } else { 1041 dl->d_nsectors = RX2_SECTORS / 2; /* sectors per track */ 1042 dl->d_secpercyl = RX2_SECTORS / 2; /* sectors per cylinder */ 1043 dl->d_ncylinders = RX2_TRACKS; /* cylinders per unit */ 1044 /* sectors per unit */ 1045 dl->d_secperunit = RX2_SECTORS * RX2_TRACKS / 2; 1046 /* number of sectors in partition */ 1047 dl->d_partitions[2].p_size = RX2_SECTORS * RX2_TRACKS / 2; 1048 } 1049 return(0); 1050 } 1051 1052 1053 1054 int 1055 rfclose(dev_t dev, int fflag, int devtype, struct lwp *l) 1056 { 1057 struct rf_softc *rf_sc = device_lookup_private(&rf_cd, DISKUNIT(dev)); 1058 1059 if ((rf_sc->sc_state & 1 << (DISKPART(dev) + RFS_OPEN_SHIFT)) == 0) 1060 panic("rfclose: can not close non-open drive %s " 1061 "partition %"PRIu32, device_xname(rf_sc->sc_dev), DISKPART(dev)); 1062 else 1063 rf_sc->sc_state &= ~(1 << (DISKPART(dev) + RFS_OPEN_SHIFT)); 1064 if ((rf_sc->sc_state & RFS_OPEN_MASK) == 0) 1065 rf_sc->sc_state = 0; 1066 return(0); 1067 } 1068 1069 1070 1071 int 1072 rfread(dev_t dev, struct uio *uio, int ioflag) 1073 { 1074 1075 return(physio(rfstrategy, NULL, dev, B_READ, minphys, uio)); 1076 } 1077 1078 1079 1080 int 1081 rfwrite(dev_t dev, struct uio *uio, int ioflag) 1082 { 1083 1084 return(physio(rfstrategy, NULL, dev, B_WRITE, minphys, uio)); 1085 } 1086 1087 1088 1089 int 1090 rfioctl(dev_t dev, u_long cmd, void *data, int fflag, struct lwp *l) 1091 { 1092 struct rf_softc *rf_sc = device_lookup_private(&rf_cd, DISKUNIT(dev)); 1093 1094 /* We are going to operate on a non-open dev? PANIC! */ 1095 if ((rf_sc->sc_state & 1 << (DISKPART(dev) + RFS_OPEN_SHIFT)) == 0) 1096 panic("rfioctl: can not operate on non-open drive %s " 1097 "partition %"PRIu32, device_xname(rf_sc->sc_dev), DISKPART(dev)); 1098 switch (cmd) { 1099 /* get and set disklabel; DIOCGPART used internally */ 1100 case DIOCGDINFO: /* get */ 1101 memcpy(data, rf_sc->sc_disk.dk_label, 1102 sizeof(struct disklabel)); 1103 return(0); 1104 case DIOCSDINFO: /* set */ 1105 return(0); 1106 case DIOCWDINFO: /* set, update disk */ 1107 return(0); 1108 case DIOCGPART: /* get partition */ 1109 ((struct partinfo *)data)->disklab = rf_sc->sc_disk.dk_label; 1110 ((struct partinfo *)data)->part = 1111 &rf_sc->sc_disk.dk_label->d_partitions[DISKPART(dev)]; 1112 return(0); 1113 1114 /* do format operation, read or write */ 1115 case DIOCRFORMAT: 1116 break; 1117 case DIOCWFORMAT: 1118 break; 1119 1120 case DIOCSSTEP: /* set step rate */ 1121 break; 1122 case DIOCSRETRIES: /* set # of retries */ 1123 break; 1124 case DIOCKLABEL: /* keep/drop label on close? */ 1125 break; 1126 case DIOCWLABEL: /* write en/disable label */ 1127 break; 1128 1129 /* case DIOCSBAD: / * set kernel dkbad */ 1130 break; /* */ 1131 case DIOCEJECT: /* eject removable disk */ 1132 break; 1133 case ODIOCEJECT: /* eject removable disk */ 1134 break; 1135 case DIOCLOCK: /* lock/unlock pack */ 1136 break; 1137 1138 /* get default label, clear label */ 1139 case DIOCGDEFLABEL: 1140 break; 1141 case DIOCCLRLABEL: 1142 break; 1143 default: 1144 return(ENOTTY); 1145 } 1146 1147 return(ENOTTY); 1148 } 1149
Indexes created Tue Sep 30 07:10:03 GMT 2025