The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/qbus/rlreg.h

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    1 /*      $NetBSD: rlreg.h,v 1.2 2002/03/23 18:12:09 ragge Exp $  */ 
    2 
    3 /*
    4  * Copyright (c) 2000 Ludd, University of Lule}, Sweden. 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. All advertising materials mentioning features or use of this software
   15  *    must display the following acknowledgement:
   16  *      This product includes software developed at Ludd, University of
   17  *      Lule}, Sweden and its contributors.
   18  * 4. The name of the author may not be used to endorse or promote products
   19  *    derived from this software without specific prior written permission
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   31  */
   32 
   33 /*
   34  * RL11 registers.
   35  */
   36 #define RL_CS           0
   37 #define RL_BA           2
   38 #define RL_DA           4
   39 #define RL_MP           6
   40 #define RL_BAE          8       /* Only on RLV12 */
   41 
   42 /*
   43  * Bits in Control/Status register
   44  */
   45 #define RLCS_DRDY       0000001
   46 #define RLCS_IE         0000100
   47 #define RLCS_CRDY       0000200
   48 #define RLCS_DE         0040000
   49 #define RLCS_ERR        0100000
   50 #define RLCS_ERRMSK     0036000
   51 /* Command to give to drive */
   52 #define RLCS_NOOP       0000000         /* No operation */
   53 #define RLCS_WCK        0000002         /* Write Check */
   54 #define RLCS_GS         0000004         /* Get Status */
   55 #define RLCS_SEEK       0000006         /* Seek */
   56 #define RLCS_RHDR       0000010         /* Read Header */
   57 #define RLCS_WD         0000012         /* Write data */
   58 #define RLCS_RD         0000014         /* Read data */
   59 #define RLCS_RDWO       0000016         /* Read data without hdr check */
   60 #define RLCS_USHFT      8               /* Shift unit number left */
   61 #define RLCS_ADSHFT     4               /* Shift address bits 16-17 left */
   62 
   63 /*
   64  * Bits in Disk Address register
   65  */
   66 #define RLDA_SEEK       0000001         /* Issue a "Seek" command */
   67 #define RLDA_GS         0000003         /* Issue a "Get Status" command */
   68 #define RLDA_DIR        0000004         /* Move head towards spindle */
   69 #define RLDA_RST        0000010         /* Reset the drive */
   70 #define RLDA_HSSEEK     0000020         /* Head select for seek */
   71 #define RLDA_HSRW       0000100         /* Head select for read/write */
   72 #define RLDA_CYLSHFT    7
   73 
   74 /*
   75  * Bits in Multipurpose register
   76  */
   77 #define RLMP_STATUS     0000007         /* Status bits mask */
   78 #define RLMP_UNLOAD     0               /* not loaded */
   79 #define RLMP_SPINUP     1               /* spinning up */
   80 #define RLMP_BRUSHING   2               /* brushes out */
   81 #define RLMP_LOADHEADS  3               /* loading heads */
   82 #define RLMP_SEEKING    4               /* seeking */
   83 #define RLMP_LOCKED     5               /* lock turned on */
   84 #define RLMP_UNLHEADS   6               /* unloading heads */
   85 #define RLMP_SPUNDOWN   7               /* disk spun down */
   86 
   87 #define RLMP_DT         0000200         /* Set if RL02, otherwise RL01 */
   88 #define RLMP_HS         0000100         /* Head select */
   89 
   90 /*
   91  * RL01/RL02 disk layout.
   92  */
   93 #define RL_BPS          256             /* Bytes/sector */
   94 #define RL_SPT          40              /* Sectors/track */
   95 #define RL_TPS01        256             /* Tracks/surface RL01 */
   96 #define RL_TPS02        512             /* Tracks/surface RL02 */
   97 #define RL_SPD          2               /* Surfaces/disk */
   98 
   99 /*
  100  * Other...
  101  */
  102 #define RL_MAXDPC       4               /* Max disks/controller */

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