sys/dev/qbus/rlreg.h

   1 /*      $NetBSD: rlreg.h,v 1.2.10.1 2005/03/04 16:49:54 skrll 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 */