sys/arch/acorn32/podulebus/rapidereg.h

   1 /*      $NetBSD: rapidereg.h,v 1.4 1999/03/22 10:14:12 mark Exp $       */
   2
   3 /*
   4  * Copyright (c) 1997 Mark Brinicombe
   5  * Copyright (c) 1997 Causality Limited
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by Mark Brinicombe
  18  *      for the NetBSD Project.
  19  * 4. The name of the author may not be used to endorse or promote products
  20  *    derived from this software without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 /*
  35  * Thanks to Chris Honey at Raymond Datalink for providing information on
  36  * addressing the RapIDE podule.
  37  * RapIDE32 is Copyright (C) 1995,1996 Raymond Datalink. RapIDE32 is
  38  * manufactured under license by Yellowstone Educational Solutions.
  39  */
  40
  41 /*
  42  * Registers and address offsets for the Yellowstone RapIDE card.
  43  *
  44  * These are for issue 2 cards only.
  45  */
  46
  47 /*
  48  * This file needs to be extended to provide register information on
  49  * both versions of the card.
  50  */
  51
  52 /* IDE drive registers */
  53
  54 #define PRIMARY_DRIVE_REGISTERS_OFFSET          0x400080
  55 #define PRIMARY_AUX_REGISTER_OFFSET             0x400298
  56 #define PRIMARY_DATA_REGISTER_OFFSET            0x600080
  57
  58 #define SECONDARY_DRIVE_REGISTERS_OFFSET        0x400000
  59 #define SECONDARY_AUX_REGISTER_OFFSET           0x400218
  60 #define SECONDARY_DATA_REGISTER_OFFSET          0x600000
  61
  62 #define DRIVE_REGISTERS_SPACE                   0x20
  63 #define DRIVE_REGISTER_BYTE_SPACING             4
  64
  65 /* Other registers */
  66
  67 #define CONTROL_REGISTERS_OFFSET                0x200000
  68 #define CONTROL_REGISTER_SPACE                  16
  69
  70 #define IRQ_MASK_REGISTER_OFFSET                0
  71 #define IRQ_STATUS_REGISTER_OFFSET              0
  72 #define IRQ_REQUEST_REGISTER_OFFSET             1
  73 #define IRQ_REQUEST_REGISTER_BYTE_OFFSET        (IRQ_REQUEST_REGISTER_OFFSET << 2)
  74 #define IRQ_CLEAR_REGISTER_OFFSET               1
  75 #define PRIMARY_IRQ_MASK                        0x01
  76 #define SECONDARY_IRQ_MASK                      0x02
  77 #define IRQ_MASK                                (PRIMARY_IRQ_MASK | SECONDARY_IRQ_MASK)
  78
  79 #define VERSION_REGISTER_OFFSET                 3
  80 #define VERSION_REGISTER_MASK                   0x03
  81 #define VERSION_1_ID                            0x00
  82 #define VERSION_2_ID                            0x01
  83
  84 #define PIO_MODE_CONTROL_REGISTER_OFFSET        3
  85 #define PIO_MODE_0                              0
  86 #define PIO_MODE_1                              1
  87 #define PIO_MODE_2                              2
  88 #define PIO_MODE_3                              3
  89 #define PIO_MODE_4                              4