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1.1 ! root 1: /* ! 2: * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. ! 3: * ! 4: * @APPLE_LICENSE_HEADER_START@ ! 5: * ! 6: * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights ! 7: * Reserved. This file contains Original Code and/or Modifications of ! 8: * Original Code as defined in and that are subject to the Apple Public ! 9: * Source License Version 1.1 (the "License"). You may not use this file ! 10: * except in compliance with the License. Please obtain a copy of the ! 11: * License at http://www.apple.com/publicsource and read it before using ! 12: * this file. ! 13: * ! 14: * The Original Code and all software distributed under the License are ! 15: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER ! 16: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, ! 17: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, ! 18: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the ! 19: * License for the specific language governing rights and limitations ! 20: * under the License. ! 21: * ! 22: * @APPLE_LICENSE_HEADER_END@ ! 23: */ ! 24: ! 25: /* @(#)fd_extern.h 2.0 01/25/90 (c) 1990 NeXT ! 26: * ! 27: * fd_vars.h -- Externally used data structures and constants for Floppy ! 28: * Disk driver ! 29: * ! 30: * KERNEL VERSION ! 31: * ! 32: * HISTORY ! 33: * 13-May-94 Dean Reece ! 34: * Added define and struct for FDIOCGCAPLIST to return possible ! 35: * format densities. Enables workspace to build a menu. ! 36: * 20-Mar-91 Doug Mitchell ! 37: * Made #importing pmap.h and vm_map.h dependent on #ifdef KERNEL. ! 38: * 25-Jan-90 Doug Mitchell at NeXT ! 39: * Created. ! 40: * ! 41: */ ! 42: ! 43: #ifndef _FDEXTERN_ ! 44: #define _FDEXTERN_ ! 45: ! 46: #import <sys/types.h> ! 47: #import <sys/ioctl.h> ! 48: #import <mach/boolean.h> ! 49: #import <mach/vm_param.h> ! 50: #define FD_CMDSIZE 0x10 /* max size of command passed to ! 51: * controller */ ! 52: #define FD_STATSIZE 0x10 /* max size of status array returned ! 53: * from controller */ ! 54: #define FD_MAX_CAP_LIST 8 ! 55: ! 56: typedef int fd_return_t; /* see FDR_xxx, below */ ! 57: ! 58: struct fd_drive_stat { ! 59: u_char media_id:2, /* media type currently inserted. See ! 60: * FD_MID_xxx, below. */ ! 61: motor_on:1, /* state of motor at I/O complete ! 62: * 1 = on; 0 = off */ ! 63: write_prot:1, /* write protect 1 = Write Protected */ ! 64: drive_present:1, ! 65: rsvd1:3; /* reserved */ ! 66: }; ! 67: ! 68: /* ! 69: * Format Capacity List struct. Returned by FDIOCGCAPLIST ioctl as a list ! 70: * of possible format capacities. Entries are possible capacities ! 71: * in 1k (1024) units. List is null terminated, so the useful size is ! 72: * (FD_MAX_CAP_LIST - 1). ! 73: */ ! 74: struct fd_cap_list { ! 75: int capacity[FD_MAX_CAP_LIST]; ! 76: }; ! 77: ! 78: /* ! 79: * I/O request struct. Used in DKIOCREQ ioctl to specify one command sequence ! 80: * to be executed. ! 81: */ ! 82: struct fd_ioreq { ! 83: /* ! 84: * inputs to driver: ! 85: */ ! 86: u_char density; /* see FD_DENS_xxx, below */ ! 87: int timeout; /* I/O timeout in milliseconds. Used ! 88: * in FDCMD_CMD_XFR commands only. */ ! 89: int command; /* see FDCMD_xxx, below */ ! 90: u_char cmd_blk[FD_CMDSIZE]; ! 91: /* actual command bytes */ ! 92: u_int num_cmd_bytes; /* expected # of bytes in cmd_blk[] to ! 93: * transfer */ ! 94: caddr_t addrs; /* source/dest of data */ ! 95: u_int byte_count; /* max # of data bytes to move */ ! 96: u_char stat_blk[FD_STATSIZE]; ! 97: /* status returned from controller */ ! 98: u_int num_stat_bytes; /* number of status bytes to transfer ! 99: * to stat_blk[] */ ! 100: int flags; /* see FD_IOF_xxx, below */ ! 101: ! 102: /* ! 103: * outputs from driver: ! 104: */ ! 105: fd_return_t status; /* FDR_SUCCESS, etc. */ ! 106: u_int cmd_bytes_xfr; /* # of command bytes actually moved */ ! 107: u_int bytes_xfr; /* # of data bytes actually moved */ ! 108: u_int stat_bytes_xfr; /* # if status bytes moved to ! 109: * stat_blk[] */ ! 110: struct fd_drive_stat drive_stat; /* media ID, etc. */ ! 111: ! 112: /* ! 113: * used internally by driver ! 114: */ ! 115: struct pmap *pmap; /* DMA is mapped by this */ ! 116: struct vm_map *map; /* map of requestor's task */ ! 117: u_char unit; /* drive # (relative to controller) */ ! 118: }; ! 119: ! 120: typedef struct fd_ioreq fdIoReq_t; ! 121: typedef struct fd_ioreq *fd_ioreq_t; ! 122: ! 123: /* ! 124: * fd_ioreq.command values ! 125: */ ! 126: #define FDCMD_BAD 0x00 /* not used */ ! 127: #define FDCMD_CMD_XFR 0x01 /* transfer command in fd_ioreq.cmd_blk ! 128: */ ! 129: #define FDCMD_EJECT 0x02 /* eject disk */ ! 130: #define FDCMD_MOTOR_ON 0x03 /* motor on */ ! 131: #define FDCMD_MOTOR_OFF 0x04 /* motor off */ ! 132: #define FDCMD_GET_STATUS 0x05 /* Get status (media ID, motor state, ! 133: * write protect) */ ! 134: ! 135: /* ! 136: * fd_ioreq.density values. Some routines rely on these being in ! 137: * cardinal order... ! 138: */ ! 139: #define FD_DENS_NONE 0 /* unformatted */ ! 140: #define FD_DENS_1 1 /* 1 MByte/disk unformatted */ ! 141: #define FD_DENS_2 2 /* 2 MByte/disk unformatted */ ! 142: #define FD_DENS_4 3 /* 4 MByte/disk unformatted */ ! 143: ! 144: #if i386 ! 145: #define FD_DENS_DEFAULT FD_DENS_2 ! 146: #else ! 147: #define FD_DENS_DEFAULT FD_DENS_4 ! 148: #endif ! 149: ! 150: /* ! 151: * fd_ioreq.flags values ! 152: */ ! 153: #define FD_IOF_DMA_DIR 0x00000002 ! 154: #define FD_IOF_DMA_RD 0x00000002 /* DMA direction = device to ! 155: * host */ ! 156: #define FD_IOF_DMA_WR 0x00000000 /* DMA direction = host to ! 157: * device */ ! 158: ! 159: /* ! 160: * fdr_return_t values ! 161: */ ! 162: #define FDR_SUCCESS 0 /* OK */ ! 163: #define FDR_TIMEOUT 1 /* fd_ioreq.timeout exceeded */ ! 164: #define FDR_MEMALLOC 2 /* couldn't allocate memory */ ! 165: #define FDR_MEMFAIL 3 /* memory transfer error */ ! 166: #define FDR_REJECT 4 /* bad field in fd_ioreq */ ! 167: #define FDR_BADDRV 5 /* drive not present */ ! 168: #define FDR_DATACRC 6 /* media error - data CRC */ ! 169: #define FDR_HDRCRC 7 /* media error - header CRC */ ! 170: #define FDR_MEDIA 8 /* misc. media error */ ! 171: #define FDR_SEEK 9 /* seek error */ ! 172: #define FDR_BADPHASE 10 /* controller changed phase ! 173: * unexpectedly */ ! 174: #define FDR_DRIVE_FAIL 11 /* Basic Drive Failure */ ! 175: #define FDR_NOHDR 12 /* Header Not Found */ ! 176: #define FDR_WRTPROT 13 /* Disk Write Protected */ ! 177: #define FDR_NO_ADDRS_MK 14 /* Missing Address Mark */ ! 178: #define FDR_CNTRL_MK 15 /* Missing Control Mark */ ! 179: #define FDR_NO_DATA_MK 16 /* Missing Data Mark */ ! 180: #define FDR_CNTRL_REJECT 17 /* controller rejected command */ ! 181: #define FDR_CNTRLR 18 /* Controller Handshake Error */ ! 182: #define FDR_DMAOURUN 19 /* DMA Over/underrun */ ! 183: #define FDR_VOLUNAVAIL 20 /* Requested Volume not available */ ! 184: #define FDR_ALIGN 21 /* DMA alignment error */ ! 185: #define FDR_DMA 22 /* DMA error */ ! 186: #define FDR_SPURIOUS 23 /* spurious interrupt */ ! 187: ! 188: /* ! 189: * fd_drive_stat.media_id values ! 190: */ ! 191: #define FD_MID_NONE 0 /* no disk inserted */ ! 192: #define FD_MID_1MB 3 /* 1 MByte unformatted */ ! 193: #define FD_MID_2MB 2 /* 2 MByte unformatted */ ! 194: #define FD_MID_4MB 1 /* 4 MBytes unformatted */ ! 195: ! 196: #if i386 || hppa ! 197: #define FD_MID_DEFAULT FD_MID_2MB ! 198: #ifdef KERNEL /* Maximum Number of bytes of data ! 199: that can be transfered via DMA ! 200: using FDIOCREQ ioctl command ! 201: */ ! 202: ! 203: #define FD_MAX_DMA_SIZE PAGE_SIZE ! 204: #else ! 205: #define FD_MAX_DMA_SIZE vm_page_size ! 206: #endif /* KERNEL */ ! 207: #endif /* i386 || hppa */ ! 208: ! 209: /* ! 210: * ioctl's specific to floppy disk ! 211: */ ! 212: #define FDIOCREQ _IOWR('f', 0, struct fd_ioreq) /* cmd request */ ! 213: #define FDIOCGFORM _IOR ('f', 1, struct fd_format_info) ! 214: /* get format */ ! 215: #define FDIOCSDENS _IOW ('f', 2, int) /* set density */ ! 216: #define FDIOCSSIZE _IOW ('f', 3, int) /* set sector size */ ! 217: #define FDIOCSGAPL _IOW ('f', 4, int) /* set Gap 3 length */ ! 218: #define FDIOCRRW _IOWR('f', 5, struct fd_rawio) /* raw read/write */ ! 219: #define FDIOCSIRETRY _IOW ('f', 6, int) /* set inner retry loop ! 220: * count */ ! 221: #define FDIOCGIRETRY _IOR ('f', 7, int) /* get inner retry loop ! 222: * count */ ! 223: #define FDIOCSORETRY _IOW ('f', 8, int) /* set outer retry loop ! 224: * count */ ! 225: #define FDIOCGORETRY _IOR ('f', 9, int) /* get outer retry loop ! 226: * count */ ! 227: #define FDIOCGCAPLIST _IOR ('f', 10, struct fd_cap_list) ! 228: /* get list of possible format capacities */ ! 229: /* ! 230: * software registers passed to controller during command sequences ! 231: */ ! 232: ! 233: struct fd_rw_cmd { ! 234: /* ! 235: * 9 command bytes passed at start of read/write data ! 236: */ ! 237: ! 238: #if __LITTLE_ENDIAN__ ! 239: ! 240: u_char opcode:5, ! 241: sk:1, /* skip sectors with deleted AM */ ! 242: mfm:1, /* MFM encoding */ ! 243: mt:1; /* multi track */ ! 244: u_char drive_sel:2, /* drive select */ ! 245: hds:1, /* head select */ ! 246: rsvd1:5; /* reserved */ ! 247: u_char cylinder; ! 248: u_char head; ! 249: u_char sector; ! 250: u_char sector_size; /* 'n' in the Intel spec. */ ! 251: u_char eot; /* sector # at end of track */ ! 252: u_char gap_length; /* gap length */ ! 253: u_char dtl; /* special sector size */ ! 254: ! 255: #elif __BIG_ENDIAN__ ! 256: ! 257: u_char mt:1, /* multitrack */ ! 258: mfm:1, /* MFM encoding */ ! 259: sk:1, /* skip sectors with deleted AM */ ! 260: opcode:5; ! 261: u_char rsvd1:5, /* reserved */ ! 262: hds:1, /* head select */ ! 263: drive_sel:2; /* drive select */ ! 264: u_char cylinder; ! 265: u_char head; ! 266: u_char sector; ! 267: u_char sector_size; /* 'n' in the Intel spec. */ ! 268: u_char eot; /* sector # at end of track */ ! 269: u_char gap_length; /* gap length */ ! 270: u_char dtl; /* special sector size */ ! 271: ! 272: #else ! 273: #error Floppy command / data structures are compiler sensitive ! 274: #endif ! 275: }; ! 276: ! 277: #define SIZEOF_RW_CMD 9 /* compiler yields 9 as sizeof this ! 278: * struct */ ! 279: ! 280: struct fd_rw_stat { ! 281: /* ! 282: * 7 status bytes passed at completion of read/write data ! 283: */ ! 284: ! 285: u_char stat0; ! 286: u_char stat1; ! 287: u_char stat2; ! 288: u_char cylinder; ! 289: u_char head; ! 290: u_char sector; ! 291: u_char sector_size; /* 'n' in the Intel spec. */ ! 292: }; ! 293: ! 294: #define SIZEOF_RW_STAT 7 ! 295: ! 296: struct fd_int_stat { ! 297: /* ! 298: * result of Sense Interrupt Status command ! 299: */ ! 300: u_char stat0; ! 301: u_char pcn; /* present cylinder & */ ! 302: }; ! 303: ! 304: struct fd_seek_cmd { ! 305: /* ! 306: * Seek command. Uses Sense Interrupt Status to get results. ! 307: */ ! 308: ! 309: #if __LITTLE_ENDIAN__ ! 310: ! 311: u_char opcode:6, /* will be FCCMD_SEEK */ ! 312: dir:1, /* 1 == towards spindle for ! 313: relative seek*/ ! 314: relative:1; /* 1 = relative */ ! 315: u_char drive_sel:2, /* drive select */ ! 316: hds:1, /* head select */ ! 317: rsvd1:5; /* reserved */ ! 318: u_char cyl; /* cylinder # or offset */ ! 319: ! 320: #elif __BIG_ENDIAN__ ! 321: ! 322: u_char relative:1, /* 1 = relative */ ! 323: dir:1, /* 1 == towards spindle */ ! 324: opcode:6; /* will be FCCMD_SEEK */ ! 325: u_char rsvd1:5, /* reserved */ ! 326: hds:1, /* head select */ ! 327: drive_sel:2; /* drive select */ ! 328: u_char cyl; /* cylinder # or offset */ ! 329: ! 330: #else ! 331: #error Floppy command / data structures are compiler sensitive ! 332: #endif ! 333: }; ! 334: ! 335: #define SEEK_DIR_IN 1 /* seek towards spindle */ ! 336: #define SEEK_DIR_OUT 0 /* seek away from spindle */ ! 337: ! 338: #define SIZEOF_SEEK_CMD 3 ! 339: ! 340: struct fd_recal_cmd { ! 341: /* ! 342: * Recalibrate command. Uses Sense Interrupt Status to get results. ! 343: */ ! 344: u_char opcode; /* will be FCCMD_RECAL */ ! 345: ! 346: #if __LITTLE_ENDIAN__ ! 347: ! 348: u_char drive_sel:2, /* drive select */ ! 349: rsvd1:6; /* reserved */ ! 350: ! 351: #elif __BIG_ENDIAN__ ! 352: ! 353: u_char rsvd1:6, /* reserved */ ! 354: drive_sel:2; /* drive select */ ! 355: ! 356: #else ! 357: #error Floppy command / data structures are compiler sensitive ! 358: #endif ! 359: }; ! 360: ! 361: struct fd_configure_cmd { ! 362: /* ! 363: * configure command. No result bytes are returned. ! 364: */ ! 365: u_char opcode; /* will be FCCMD_CONFIGURE */ ! 366: u_char rsvd1; /* must be 0 */ ! 367: u_char conf_2; /* EIS, EFIFO, etc. */ ! 368: u_char pretrk; /* write precomp track # */ ! 369: }; ! 370: ! 371: /* ! 372: * configure command fields ! 373: */ ! 374: #define CF2_EIS 0x40 /* enable implied seek */ ! 375: #define CF2_EFIFO 0x20 /* enable FIFO. True Low. */ ! 376: #define CF2_DPOLL 0x10 /* disable polling */ ! 377: #define CF2_FIFO_DEFAULT 0x08 /* OUR default FIFO threshold */ ! 378: #define CF_PRETRACK 0x00 /* OUR default precom track */ ! 379: #define I82077_FIFO_SIZE 0x10 /* size of FIFO */ ! 380: ! 381: struct fd_specify_cmd { ! 382: /* ! 383: * Specify command. No result bytes are returned. ! 384: */ ! 385: u_char opcode; /* will be FCCMD_SPECIFY */ ! 386: ! 387: #if __LITTLE_ENDIAN__ ! 388: ! 389: u_char hut:4, /* head unload time */ ! 390: srt:4; /* step rate */ ! 391: u_char nd:1, /* Non-DMA mode */ ! 392: hlt:7; /* head load time */ ! 393: ! 394: #elif __BIG_ENDIAN__ ! 395: ! 396: u_char srt:4, /* step rate */ ! 397: hut:4; /* head unload time */ ! 398: u_char hlt:7, /* head load time */ ! 399: nd:1; /* Non-DMA mode */ ! 400: ! 401: #else ! 402: #error Floppy command / data structures are compiler sensitive ! 403: #endif ! 404: }; ! 405: ! 406: #define SIZEOF_SPECIFY_CMD 3 ! 407: ! 408: struct fd_readid_cmd { ! 409: /* ! 410: * Read ID command. Returns status in an fd_rw_stat. ! 411: */ ! 412: ! 413: #if __LITTLE_ENDIAN__ ! 414: ! 415: u_char opcode:6, /* Will be FCCMD_READID */ ! 416: mfm:1, ! 417: rsvd1:1; ! 418: u_char drive_sel:2, /* drive select */ ! 419: hds:1, /* head select */ ! 420: rsvd2:5; /* reserved */ ! 421: ! 422: #elif __BIG_ENDIAN__ ! 423: ! 424: u_char rsvd1:1, ! 425: mfm:1, ! 426: opcode:6; /* Will be FCCMD_READID */ ! 427: u_char rsvd2:5, /* reserved */ ! 428: hds:1, /* head select */ ! 429: drive_sel:2; /* drive select */ ! 430: ! 431: #else ! 432: #error Floppy command / data structures are compiler sensitive ! 433: #endif ! 434: }; ! 435: ! 436: struct fd_perpendicular_cmd { ! 437: u_char opcode; /* will be FCCMD_PERPENDICULAR */ ! 438: ! 439: #if __LITTLE_ENDIAN__ ! 440: ! 441: u_char gap:1, ! 442: wgate:1, ! 443: rsvd1:6; /* must be 0 */ ! 444: ! 445: #elif __BIG_ENDIAN__ ! 446: ! 447: u_char rsvd1:6, /* must be 0 */ ! 448: wgate:1, ! 449: gap:1; ! 450: ! 451: #else ! 452: #error Floppy command / data structures are compiler sensitive ! 453: #endif ! 454: }; ! 455: ! 456: struct fd_format_cmd { ! 457: /* ! 458: * Format track command. Returns status in an fd_rw_stat ! 459: * (with undefined address fields). ! 460: */ ! 461: ! 462: #if __LITTLE_ENDIAN__ ! 463: ! 464: u_char opcode:6, /* will be FCCMD_FORMAT */ ! 465: mfm:1, ! 466: rsvd1:1; ! 467: u_char drive_sel:2, /* drive select */ ! 468: hds:1, /* head select */ ! 469: rsvd2:5; /* reserved */ ! 470: ! 471: #elif __BIG_ENDIAN__ ! 472: ! 473: u_char rsvd1:1, ! 474: mfm:1, ! 475: opcode:6; /* will be FCCMD_FORMAT */ ! 476: u_char rsvd2:5, /* reserved */ ! 477: hds:1, /* head select */ ! 478: drive_sel:2; /* drive select */ ! 479: ! 480: #else ! 481: #error Floppy command / data structures are compiler sensitive ! 482: #endif ! 483: u_char n; /* sector size (2**n * 128 = sect_size) ! 484: */ ! 485: u_char sects_per_trk; ! 486: u_char gap_length; ! 487: u_char filler_data; /* data field written with this byte */ ! 488: }; ! 489: ! 490: struct fd_sense_drive_status_cmd { ! 491: /* ! 492: * returns one result byte which is basically status register 3 ! 493: */ ! 494: ! 495: u_char opcode; /* will be FCCMD_DRIVE_STATUS */ ! 496: ! 497: #if __LITTLE_ENDIAN__ ! 498: ! 499: u_char drive_sel:2, /* drive select */ ! 500: hds:1, /* head select */ ! 501: resvd2:5; /* always zero */ ! 502: ! 503: #elif __BIG_ENDIAN__ ! 504: ! 505: u_char resvd2:5, /* always zero */ ! 506: hds:1, /* head select */ ! 507: drive_sel:2; /* drive select */ ! 508: ! 509: #else ! 510: #error Floppy command / data structures are compiler sensitive ! 511: #endif ! 512: }; ! 513: ! 514: /* ! 515: * software register values ! 516: */ ! 517: ! 518: /* ! 519: * cmd (command byte). Not all of these opcodes are used with the fd_rw_cmd ! 520: * struct... ! 521: */ ! 522: #define FCCMD_OPCODE_MASK 0x1F ! 523: #define FCCMD_MULTITRACK 0x80 ! 524: #define FCCMD_MFM 0x40 /* MFM flag */ ! 525: #define FCCMD_SK 0x20 /* skip flag */ ! 526: #define FCCMD_READ 0x06 ! 527: #define FCCMD_READ_DELETE 0x0C ! 528: #define FCCMD_WRITE 0x05 ! 529: #define FCCMD_WRITE_DELETE 0x09 ! 530: #define FCCMD_READ_TRACK 0x02 ! 531: #define FCCMD_VERIFY 0x16 ! 532: #define FCCMD_VERSION 0x10 ! 533: #define FCCMD_FORMAT 0x0D ! 534: #define FCCMD_RECAL 0x07 ! 535: #define FCCMD_INTSTAT 0x08 /* sense interrupt status */ ! 536: #define FCCMD_SPECIFY 0x03 ! 537: #define FCCMD_DRIVE_STATUS 0x04 ! 538: #define FCCMD_SEEK 0x0F ! 539: #define FCCMD_CONFIGURE 0x13 ! 540: #define FCCMD_DUMPREG 0x0E ! 541: #define FCCMD_READID 0x0A /* Read ID */ ! 542: #define FCCMD_PERPENDICULAR 0x12 /* perpendicular recording mode ! 543: */ ! 544: /* ! 545: * rws_stat0 (status register 0) ! 546: */ ! 547: #define SR0_INTCODE 0xC0 /* interrupt code - see INTCODE_xxx */ ! 548: #define INTCODE_COMPLETE 0x00 /* normal I/O complete */ ! 549: #define INTCODE_ABNORMAL 0x40 /* abnormal termination */ ! 550: #define INTCODE_INVALID 0x80 /* Invalid command */ ! 551: #define INTCODE_POLL_TERM 0xC0 /* abnormal termination caused by ! 552: * polling */ ! 553: #define SR0_SEEKEND 0x20 /* Seek End */ ! 554: #define SR0_EQ_CHECK 0x10 /* Equipment check (recal failed, ! 555: * seek beyond track 0, etc.) */ ! 556: #define SR0_HEAD 0x04 /* current head address */ ! 557: #define SR0_DRVSEL 0x03 ! 558: #define SR0_DRVSEL1 0x02 /* Drive Select 1 */ ! 559: #define SR0_DRVSEL0 0x01 /* Drive Select 0 */ ! 560: ! 561: /* ! 562: * rws_stat1 (status register 1) ! 563: */ ! 564: #define SR1_EOCYL 0x80 /* end of cylinder */ ! 565: #define SR1_CRCERR 0x20 /* data or ID CRC error */ ! 566: #define SR1_OURUN 0x10 /* DMA over/underrun */ ! 567: #define SR1_NOHDR 0x04 /* Header Not Found */ ! 568: #define SR1_NOT_WRT 0x02 /* Not writable */ ! 569: #define SR1_MISS_AM 0x01 /* Missing Address mark */ ! 570: ! 571: /* ! 572: * rws_stat2 (status register 2) ! 573: */ ! 574: #define SR2_CNTRL_MK 0x40 /* control mark */ ! 575: #define SR2_DATACRC 0x20 /* Data CRC error */ ! 576: #define SR2_WRONG_CYL 0x10 /* wrong cylinder */ ! 577: #define SR2_BAD_CYL 0x02 /* Bad cylinder */ ! 578: #define SR2_MISS_AM 0x01 /* missing data mark */ ! 579: ! 580: /* ! 581: * rws_stat3 (status register 3) ! 582: */ ! 583: #define SR3_WP 0x40 /* write protected */ ! 584: #define SR3_TRACK0 0x10 /* Track 0 */ ! 585: #define SR3_HEAD 0x04 /* Head # */ ! 586: #define SR3_DRVSEL1 0x02 /* same as status register 0?? */ ! 587: #define SR3_DEVSEL0 0x01 ! 588: ! 589: /* ! 590: * disk info - maps media_id to tracks_per_cyl and num_cylinders. ! 591: */ ! 592: struct fd_disk_info { ! 593: u_int media_id; /* FD_MID_1MB, etc. */ ! 594: u_char tracks_per_cyl; /* # of heads */ ! 595: u_int num_cylinders; ! 596: u_int max_density; /* maximum legal density. ! 597: * (FD_DENS_1, etc.) */ ! 598: }; ! 599: ! 600: /* ! 601: * sector size info - maps sector size to 82077 sector size code and ! 602: * gap3 length. Note that the controller must be programmed for different ! 603: * gap3 size when formatting as opposed to reading or writing. Since gap3 ! 604: * sizes may be dependent on the actual disk hardware, the fmt gap is ! 605: * maintained here to avoid requiring the formatter to determine ! 606: * the disk device type. ! 607: */ ! 608: struct fd_sectsize_info { ! 609: u_int sect_size; /* in bytes */ ! 610: u_char n; /* 82077 sectsize code */ ! 611: u_int sects_per_trk; /* physical sectors per trk */ ! 612: u_char rw_gap_length; /* Gap 3 for rw cmds */ ! 613: u_char fmt_gap_length; /* Gap 3 for fmt cmds */ ! 614: }; ! 615: ! 616: typedef struct fd_sectsize_info fd_sectsize_info_t; ! 617: ! 618: /* ! 619: * density info - maps density to capacity. Note that a disk may be formatted ! 620: * with a lower density than its max possible density. ! 621: */ ! 622: struct fd_density_info { ! 623: u_int density; /* FD_DENS_1, etc. */ ! 624: u_int capacity; /* in bytes */ ! 625: boolean_t mfm; /* TRUE = MFM encoding */ ! 626: }; ! 627: ! 628: typedef struct fd_density_info fd_density_info_t; ! 629: ! 630: /* ! 631: * disk format info. Used with ioctl(FDIOCGFORM). ! 632: */ ! 633: struct fd_format_info { ! 634: /* ! 635: * the disk_info struct is always valid as long as a disk is ! 636: * inserted. ! 637: */ ! 638: struct fd_disk_info disk_info; ! 639: ! 640: int flags; /* See FFI_xxx, below */ ! 641: ! 642: /* ! 643: * the remainder is only valid if (flags & FFI_FORMATTED) is true. ! 644: */ ! 645: struct fd_density_info density_info; ! 646: struct fd_sectsize_info sectsize_info; ! 647: u_int total_sects; /* total # of sectors on ! 648: * disk */ ! 649: }; ! 650: ! 651: /* ! 652: * fd_format_info.flags fields ! 653: */ ! 654: #define FFI_FORMATTED 0x00000001 /* known disk format */ ! 655: #define FFI_LABELVALID 0x00000002 /* Valid NeXT file system label ! 656: * present */ ! 657: #define FFI_WRITEPROTECT 0x00000004 /* disk is write protected */ ! 658: ! 659: struct format_data { ! 660: /* ! 661: * one of these per sector. A Format command involves DMA'ing one of ! 662: * these for each sector on a track. The format command is executed ! 663: * with a FDIOCREQ ioctl. ! 664: */ ! 665: u_char cylinder; ! 666: u_char head; ! 667: u_char sector; ! 668: u_char n; /* as in sector_size = 2**n * 128 */ ! 669: }; ! 670: ! 671: /* ! 672: * result of FCCMD_DUMPREG command ! 673: */ ! 674: struct fd_82077_regs { ! 675: u_char pcn[4]; /* cylinder # for drives 0..3 */ ! 676: u_char srt:4, ! 677: hut:4; ! 678: u_char hlt:7, ! 679: nd:1; ! 680: u_char sc_eot; ! 681: u_char rsvd1; ! 682: u_char rsvd2:1, ! 683: eis:1, ! 684: efifo:1, ! 685: poll:1, ! 686: fifothr:4; ! 687: u_char pretrk; ! 688: }; ! 689: ! 690: /* ! 691: * Used for FDIOCRRW - raw disk I/O ! 692: * -- no bad block mapping ! 693: * -- no label required ! 694: * -- no front porch ! 695: * -- block size = physical sector size ! 696: */ ! 697: struct fd_rawio { ! 698: /* ! 699: * Passed to driver ! 700: */ ! 701: u_int sector; ! 702: u_int sector_count; ! 703: caddr_t dma_addrs; ! 704: boolean_t read; /* TRUE = read; FALSE = write */ ! 705: /* ! 706: * Returned from driver ! 707: */ ! 708: fd_return_t status; /* FDR_xxx (see above) */ ! 709: u_int sects_xfr; /* sectors actually moved */ ! 710: }; ! 711: ! 712: /* ! 713: * misc. hardware constants ! 714: */ ! 715: #define NUM_FD_HEADS 2 /* number of tracks/cylinder */ ! 716: #define NUM_FD_CYL 80 /* cylinders/disk (is this actually a ! 717: * constant for all densities?) */ ! 718: #define FD_PARK_TRACK 79 /* track to which to seek before ! 719: * eject */ ! 720: #define NUM_UNITS 4 /* max # of drives per controller */ ! 721: ! 722: #endif /* _FDEXTERN_ */
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