The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/i386at/fdreg.h

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    1 /* 
    2  * Mach Operating System
    3  * Copyright (c) 1993,1991,1990,1989 Carnegie Mellon University
    4  * All Rights Reserved.
    5  * 
    6  * Permission to use, copy, modify and distribute this software and its
    7  * documentation is hereby granted, provided that both the copyright
    8  * notice and this permission notice appear in all copies of the
    9  * software, derivative works or modified versions, and any portions
   10  * thereof, and that both notices appear in supporting documentation.
   11  * 
   12  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
   13  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
   14  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   15  * 
   16  * Carnegie Mellon requests users of this software to return to
   17  * 
   18  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   19  *  School of Computer Science
   20  *  Carnegie Mellon University
   21  *  Pittsburgh PA 15213-3890
   22  * 
   23  * any improvements or extensions that they make and grant Carnegie Mellon
   24  * the rights to redistribute these changes.
   25  */
   26 /* 
   27  * HISTORY
   28  * $Log:        fdreg.h,v $
   29  * Revision 2.7  93/11/17  16:45:46  dbg
   30  *      Changed HZ to hz.  Removed local declaration of HZ.
   31  *      Removed non-MACH_KERNEL code.
   32  *      [93/01/29            dbg]
   33  * 
   34  * Revision 2.6  93/08/02  21:44:01  mrt
   35  *      Put the free copyright on this file, again.
   36  *      [93/07/22            mrt]
   37  * 
   38  * Revision 2.5  93/01/24  13:15:42  danner
   39  *      Make unit_info.addr a u_short to make inb and friends happy.
   40  *      [93/01/18            rvb]
   41  * 
   42  * Revision 2.4  91/10/07  17:25:31  af
   43  *      More mg32 changes
   44  *      [91/10/07            rvb]
   45  *      New chips/busses.[ch] nomenclature.
   46  *      [91/09/09  17:11:55  rvb]
   47  * 
   48  *      Synched again with 2.5.
   49  *      [91/09/04            rvb]
   50  * 
   51  * Revision 2.3  91/05/14  16:23:11  mrt
   52  *      Correcting copyright
   53  * 
   54  * Revision 2.2  91/02/14  14:42:36  mrt
   55  *      New, Improved, compatible with new fd.c
   56  *      [91/01/28  15:33:58  rvb]
   57  * 
   58  * Revision 1.6.1.5  90/11/27  13:44:40  rvb
   59  *      Synched 2.5 & 3.0 at I386q (r1.6.1.5) & XMK35 (r2.4)
   60  *      [90/11/15            rvb]
   61  * 
   62  * Revision 1.6.1.4  90/09/18  08:38:29  rvb
   63  *      Flush setparms from here.
   64  *      [90/09/08            rvb]
   65  * 
   66  * Revision 2.3  90/08/27  22:01:00  dbg
   67  *      Flush ushort.
   68  *      [90/07/17            dbg]
   69  * 
   70  * Revision 1.6.1.3  90/07/27  11:26:42  rvb
   71  *      Fix Intel Copyright as per B. Davies authorization.
   72  *      [90/07/27            rvb]
   73  * 
   74  * Revision 2.2  90/05/03  15:45:27  dbg
   75  *      Change for pure kernel.
   76  *      [90/04/19            dbg]
   77  * 
   78  * Revision 1.6.1.2  90/01/08  13:30:22  rvb
   79  *      Add Intel copyright.
   80  *      [90/01/08            rvb]
   81  * 
   82  * Revision 1.6.1.1  89/10/22  11:34:43  rvb
   83  *      Received from Intel October 5, 1989.
   84  *      [89/10/13            rvb]
   85  * 
   86  * Revision 1.6  89/09/25  12:27:00  rvb
   87  *      Flush B_VERFIY and B_FORMAT
   88  *      [89/09/23            rvb]
   89  * 
   90  * Revision 1.5  89/09/20  17:29:17  rvb
   91  *      It bothers me that we are changing a constant here so that
   92  *      25 Mhz machines will loop for a full 1msec.  There has to be
   93  *      a way to set cpuspeed once we find out the kind of machine and
   94  *      clock speed.
   95  *      [89/09/20            rvb]
   96  * 
   97  * Revision 1.4  89/03/09  20:07:10  rpd
   98  *      More cleanup.
   99  * 
  100  * Revision 1.3  89/02/26  12:40:12  gm0w
  101  *      Changes for cleanup.
  102  * 
  103  * 
  104  */
  105  
  106 #ifndef _I386AT_FDREG_H_
  107 #define _I386AT_FDREG_H_
  108 
  109 /*
  110   Copyright 1988, 1989 by Intel Corporation, Santa Clara, California.
  111 
  112                 All Rights Reserved
  113 
  114 Permission to use, copy, modify, and distribute this software and
  115 its documentation for any purpose and without fee is hereby
  116 granted, provided that the above copyright notice appears in all
  117 copies and that both the copyright notice and this permission notice
  118 appear in supporting documentation, and that the name of Intel
  119 not be used in advertising or publicity pertaining to distribution
  120 of the software without specific, written prior permission.
  121 
  122 INTEL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
  123 INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
  124 IN NO EVENT SHALL INTEL BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
  125 CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  126 LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
  127 NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
  128 WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  129 */
  130 
  131 /*      Copyright (c) 1987, 1988 TOSHIBA Corp.          */
  132 /*              All Rights Reserved                     */
  133 
  134 #ident  "@(#)m765.h     1.13 - 88/02/17"
  135 
  136 /*******************************************************************
  137  *
  138  *       Toshiba Floppy Driver for UNIX System V R3
  139  *
  140  *                                      June 21, 1988 
  141  *
  142  *      Intended Drive Units:
  143  *              Worldwide - Model No. ND-356  3.5" unformatted 2MB/1MB
  144  *              UNIX Media Type Name: 2HD512/2DD512/2D512/1D512.
  145  *
  146  *              In Japan Only - Model No. ND-355  3.5" unformatted 1.6MB/1MB
  147  *              UNIX Media Type Name: 2HC1024/2HC512/2HC256/2DD512/2D512/1D512.
  148  *
  149  *              Worldwide - Model No. ND-04DT-A  5.25" unformatted 500 KB
  150  *              UNIX Media Type Name: 2D512/1D512.
  151  *
  152  *              In Japan Only - Model No. ND-08DE  5.25" unformatted 1.6MB/1MB
  153  *              UNIX Media Type Name: 2HC1024/2HC512/2HC256/2DD512/2D512/1D512.
  154  *
  155  *              Use with other devices may require modification.
  156  *
  157  *      Notes:
  158  *              For further detail regarding drive units contact 
  159  *              Toshiba America,Inc. Disk Products Division,
  160  *              Irvine, CA (714) 583-3000.
  161  *
  162  *******************************************************************/
  163 
  164 /*
  165  *      fdcmd.c_rbmtr
  166  *
  167  *              |--+--+--+--+--+--+--+--|
  168  *              |  |  |  |  |  |  |  |  |
  169  *              |--+--+--+--+--+--+--+--|
  170  *                     ^  ^        ^  ^
  171  *                     |  |        |  |--- unit0 motor on flag
  172  *                     |  |        |------ unit1 motor on flag
  173  *                     |  |--------------- unit0 recalibrate flag
  174  *                     |------------------ unit1 recalibrate flag
  175  */
  176 #define MTRMASK         0x003           /* mask motor_flag for get status */
  177 #define MTRRST          0x0fc           /* reset motor_flag data */
  178 #define RBSHIFT         0x004           /* shift count for recalibrate data */
  179 #define RBRST           0x0cf           /* reset recalibrate data */
  180 
  181 /*
  182  *      fdcmd.c_intr
  183  *
  184  *                                |--+--+--+--+--+--+--+--|
  185  *                                |  |  |  |  |  |  |  |  |
  186  *                                |--+--+--+--+--+--+--+--|
  187  *                                  ^  ^  ^  ^  ^  ^  ^  ^
  188  *                      reserved  --+  |  |  |  |  |  |  +--- read/write flag
  189  *                      reserved  -----+  |  |  |  |  +------ seek flag
  190  *                      reserved  --------+  |  |  +------ seek flag for retry
  191  * recalibrate/seek flag(for open) ----------+  +--------- recalibrate flag
  192  */
  193 #define RWFLAG          0x001
  194 #define SKFLAG          0x002
  195 #define SKEFLAG         0x004
  196 #define RBFLAG          0x008
  197 #define WUPFLAG         0x010
  198 #define CMDRST          0x000   
  199 
  200 /* 
  201  *      fddrtab.dr_type 
  202  *
  203  *        +---+---+---+---+---+---+---+---+
  204  *        |   |   |   |   |   |   |   |   |
  205  *        +---+---+---+---+---+---+---+---+
  206  *          ^   ^   ^   ^   ^
  207  *          |   |   |   |   |----------- rapid seek flag
  208  *          |---|   |   |                  0: normal seek
  209  *            |     |   |                  1: rapid seek
  210  *            |     |   |--------------- detect format
  211  *            |     |                      0: no detect
  212  *            |     |                      1: format type OK
  213  *            |     |------------------- 40 or 80 cylinder(for 2hc/2dd drive)
  214  *            |                            0: 80 cylinder
  215  *            |                            1: 40 cylinder
  216  *            |------------------------- transfer rate(for read/write/format)
  217  *                                         00: 500kbps  10: 250kbps
  218  *                                         01: 300kbps  11: reserved
  219  */
  220 #define RPSEEK          0x00            /* rapid seek */
  221 #define RAPID           0x08            /* rapid seek flag */
  222 #define OKTYPE          0x10            /* media change flag */
  223 #define DOUBLE          0x20            /* double/single step change */
  224 #define NMSEEK          0x80            /* normal seek */
  225 #define RATEMASK        0xc0            /* transfer parameter mask data */
  226 
  227 /*
  228  *      device number
  229  *
  230  *       15             10  9  8  7                    0
  231  *      +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
  232  *      | 0  0  0  0  0  0  0  1|     | 0| 0| 0| 0|     |
  233  *      +-----------+-----+-----+--+--+--+--+-----------+
  234  *        ^                    ^  ^  ^              ^  ^ 
  235  *        |____________________|  |__|              |__|
  236  *                  |              |                 |
  237  *                  |              |                 |- media type
  238  *             major number        |                    0: 3.50"  720 KB
  239  *                                 |- unit number       1: 3.50" 1.44 Meg
  240  *                                                      2: 5.25"  360 KB
  241  *                                                      3: 5.25" 1.20 Meg
  242  */
  243 #define UNIT(dev)       ((dev & 0xc0)>>6)       /* get unit number */
  244 #define MEDIATYPE(dev)  (dev & 0x03)            /* get media type */
  245 /*****************************************************************************
  246  
  247                 wait time / timeout count
  248 
  249  *****************************************************************************/
  250 #define STSCHKCNT       0x2800          /* For check status */
  251 #define ITOUT           hz*5            /* interrupt timeout count */
  252 #define TOUT            hz/4            /* media type check timeout count */
  253 #define MTRSTOP         hz*2            /* motor off time */
  254 #define SEEKWAIT        hz/100*3        /* head_lock time */
  255 
  256 /******************************************************************************
  257  
  258                 define for FDC
  259 
  260  ******************************************************************************/
  261 /* FDC register */
  262 #define CTRLREG(ADDR)   (ADDR)          /* controle register */
  263 #define STSREG(ADDR)    ((ADDR)+2)      /* status register */
  264 #define DATAREG(ADDR)   ((ADDR)+3)      /* data register */
  265 #define VFOREG(ADDR)    ((ADDR)+5)      /* vfo register */
  266 
  267 /* CTRLREG flags */
  268 #define FDC_RST         0x04
  269 #define MTR_ON          0x04
  270 #define DMAREQ          0x08
  271 #define RDY             0x40
  272 #define BSY             0x80
  273 
  274 /* status for command_out */
  275 #define FD_OSTS         0x00            /* For output check */
  276 #define FD_ISTS         0x40            /* For input check */
  277 #define DTOCPU          0x40
  278 #define DATAOK          0x80
  279 
  280 /* Command for FDC */
  281 #define SPCCMD          0x03            /* Specify command */
  282 #define RBCMD           0x07            /* Recalibrate command */
  283 #define SISCMD          0x08            /* Sense interrupt status command */
  284 #define SEEKCMD         0x0f            /* seek command */
  285 #define RDM             0xe6            /* FDC READ command */
  286 #define RDMV            0x42e6          /* VERIFY READ command */
  287 #define WTM             0xc5            /* FDC WRITE command */
  288 #define FMTM            0x4d            /* FDC FORMAT command */
  289 #define FMTDATA         0x5e            /* format data */
  290 
  291 /* check value */
  292 #define OPENBIT         0x80            /* VFO check define */
  293 #define BYTEMASK        0xff
  294 
  295 /* FDC error code define */
  296 #define ERROR           0xff
  297 #define EBBHARD         128
  298 #define EBBSOFT         129
  299 #define ST0AT           0x40
  300 #define ST0IC           0x80
  301 #define ST0OK           0xc0
  302 #define ADDRERR         0x01
  303 #define WTPRT           0x02
  304 #define NOREC           0x03
  305 #define OVERRUN         0x04
  306 #define CRCERR          0x05
  307 #define FDCERR          0x06
  308 #define TIMEOUT         0x08
  309 #define DOORERR         0x09
  310 
  311 /******************************************************************************
  312  
  313                 define for DMA
  314 
  315  *****************************************************************************/
  316 /* DMA register */
  317 #define DMACMD1         0x08            /* DMA #1 command register      */
  318 #define DMAMSK1         0x0f            /* DMA #1 all mask register     */
  319 #define DMABPFF         0x0c
  320 #define DMAMODE         0x0b
  321 #define DMAADDR         0x04
  322 #define DMAPAGE         0x81
  323 #define DMACNT          0x05
  324 #define DMAMSK          0x0a
  325 
  326 /* dma set data */
  327 #define DMARD           0x46            /* DMA read mode                */
  328 #define DMAWT           0x4a            /* DMA  write mode              */
  329 #define DMAVRF          0x42            /* DMA verify mode              */
  330 
  331 #define DMADATA0        0x00            /* DMA #2 all mask data         */
  332 #define DMADATA1        0x0b            /* DMA #1 all mask data         */
  333 #define CHANNEL2        0x02
  334 
  335 #define SRTHUT          0xdf
  336 #define HLTND           0x02
  337 #define DTL             0xff
  338 
  339 /******************************************************************************
  340  
  341                 etc. define
  342 
  343  *****************************************************************************/
  344 #define SPL             spl5    /* Same as in i386at/autoconf.c */
  345 #define MAXUNIT         4       /* Max unit number */
  346 #define BLKSIZE         512     /* block size      */
  347 
  348 /* fdcmd.c_stsflag      */
  349 #define MTRFLAG 0x01
  350 #define MTROFF  0x02
  351 #define INTROUT 0x04
  352 
  353 /* fdcmd.c_devflag (media check flag . etc.) */
  354 #define FDMCHK          0x01
  355 #define FDWAIT          0x02
  356 #define STRCHK          0x04
  357 #define STRWAIT         0x08
  358 
  359 /* fdcmd.c_dcount */
  360 #define FDCCNT  9       /* Command table for read/write/format (FDC) */
  361 #define RWCNT   9       /* Read/Write command count */
  362 #define FMTCNT  6       /* format command count */
  363 
  364 struct  fdcmd {
  365         int     c_rbmtr;                /* moter & rcalibrate flag */
  366         int     c_intr;                 /* intr flag */
  367         int     c_stsflag;              /* moter flag */
  368         int     c_mtrid;                /* motor off queue id */
  369         int     c_timeid;               /* interrupt timeout id */
  370         int     c_devflag;              /* device status   */
  371         int     c_dcount;               /* Read/Write/Format data count */
  372         int     c_rwdata[FDCCNT];       /* Read/Write/Format cmd (FDC) */
  373         int     c_saddr;                /* cmd seek address */
  374 };
  375 
  376 /* fdmbuf.b_rberr/fdmbuf.b_seekerr/fdmbuf.b_rwerr */
  377 #define MEDIARD         0x01
  378 #define MEDIASEEK       0x01
  379 #define SRETRY          0x03
  380 #define MRETRY          0x30
  381 #define LRETRY          0x300
  382 #define SRMASK          0x0f
  383 #define MRMASK          0xf0
  384 #define RMRMASK         0xff0
  385 #define LRMASK          0xf00
  386 #define MINC            0x10
  387 #define LINC            0x100
  388 
  389 struct  ctrl_info {
  390         struct  unit_info *b_unitf;     /* first buffer for this dev       */
  391         struct  unit_info *b_uip;       /* like b_unit                     */
  392         struct  unit_info *b_wup;       /* unit to wake up when WUPFLAG    */
  393         short   b_rberr;                /* rb error count (for recovery)   */
  394         short   b_seekerr;              /* seek error count (for recovery) */
  395         short   b_rwerr;                /* r/w error count (for recovery)  */
  396         short   b_status;               /* error status                    */
  397         struct  buf     *b_buf;         /* set bp address                  */
  398         caddr_t b_xferaddr;             /* trasfer address                 */
  399         unsigned int b_xfercount;       /* total transfer count            */
  400         unsigned int b_xferdma;         /* dma transfer count              */
  401         daddr_t b_sector;               /* read/write sector               */
  402         struct  fdcmd   b_cmd;          /* set command table address       */
  403 };
  404 
  405 #define FMTID   4
  406 struct fmttbl {
  407         unsigned char cyl;
  408         unsigned char head;
  409         unsigned char sector;
  410         unsigned char s_type;
  411 };
  412 
  413 struct  fddrtab {
  414         u_short dr_ncyl;        /* cylinder count                */
  415         u_short dr_spc;         /* actual sectors/cylinder       */
  416         daddr_t p_nsec;         /* disk length (sector count)    */
  417         char    dr_nsec;        /* sector per track              */
  418         char    dr_type;        /* media type                    */
  419         char    dr_rwgpl;       /* Read / Write Gap length       */
  420         char    dr_fgpl;        /* Format Gap length             */
  421 };
  422 
  423 struct  unit_info {
  424         struct unit_info *b_unitf;      /* next slave                 */
  425         struct buf       *av_forw;      /* head of I/O queue (b_forw) */
  426         int              b_seekaddr;    /* cylinder address           */
  427         u_short          addr;
  428         struct fddrtab   d_drtab;       /* floppy disk parameter      */
  429         struct bus_device *dev;
  430         struct fdcmd     *b_cmd;        /* set command table address  */
  431         char             wakeme;        /* set if someone wants to be woken */
  432 };
  433 
  434 #define NBPSCTR         512             /* Bytes per LOGICAL disk sector */
  435                                         /* These should be added to 
  436                                            "sys/param.h". */
  437 #define PAGESIZ         4096
  438 
  439 #define PZERO           25
  440 #define PRIBIO          20
  441 
  442 #define B_VERIFY        IO_SPARE_START
  443 #define B_FORMAT        (IO_SPARE_START << 1)
  444 
  445 #define b_pfcent        io_mode
  446 
  447 #endif  /* _I386AT_FDREG_H_ */

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