include/uapi/linux/zorro.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 /*
   3  *  linux/zorro.h -- Amiga AutoConfig (Zorro) Bus Definitions
   4  *
   5  *  Copyright (C) 1995--2003 Geert Uytterhoeven
   6  *
   7  *  This file is subject to the terms and conditions of the GNU General Public
   8  *  License.  See the file COPYING in the main directory of this archive
   9  *  for more details.
  10  */
  11
  12 #ifndef _UAPI_LINUX_ZORRO_H
  13 #define _UAPI_LINUX_ZORRO_H
  14
  15 #include <linux/types.h>
  16
  17
  18     /*
  19      *  Each Zorro board has a 32-bit ID of the form
  20      *
  21      *      mmmmmmmmmmmmmmmmppppppppeeeeeeee
  22      *
  23      *  with
  24      *
  25      *      mmmmmmmmmmmmmmmm    16-bit Manufacturer ID (assigned by CBM (sigh))
  26      *      pppppppp            8-bit Product ID (assigned by manufacturer)
  27      *      eeeeeeee            8-bit Extended Product ID (currently only used
  28      *                          for some GVP boards)
  29      */
  30
  31
  32 #define ZORRO_MANUF(id)         ((id) >> 16)
  33 #define ZORRO_PROD(id)          (((id) >> 8) & 0xff)
  34 #define ZORRO_EPC(id)           ((id) & 0xff)
  35
  36 #define ZORRO_ID(manuf, prod, epc) \
  37         ((ZORRO_MANUF_##manuf << 16) | ((prod) << 8) | (epc))
  38
  39 typedef __u32 zorro_id;
  40
  41
  42 /* Include the ID list */
  43 #include <linux/zorro_ids.h>
  44
  45
  46     /*
  47      *  GVP identifies most of its products through the 'extended product code'
  48      *  (epc). The epc has to be ANDed with the GVP_PRODMASK before the
  49      *  identification.
  50      */
  51
  52 #define GVP_PRODMASK            (0xf8)
  53 #define GVP_SCSICLKMASK         (0x01)
  54
  55 enum GVP_flags {
  56         GVP_IO                  = 0x01,
  57         GVP_ACCEL               = 0x02,
  58         GVP_SCSI                = 0x04,
  59         GVP_24BITDMA            = 0x08,
  60         GVP_25BITDMA            = 0x10,
  61         GVP_NOBANK              = 0x20,
  62         GVP_14MHZ               = 0x40,
  63 };
  64
  65
  66 struct Node {
  67         __be32 ln_Succ;         /* Pointer to next (successor) */
  68         __be32 ln_Pred;         /* Pointer to previous (predecessor) */
  69         __u8   ln_Type;
  70         __s8   ln_Pri;          /* Priority, for sorting */
  71         __be32 ln_Name;         /* ID string, null terminated */
  72 } __packed;
  73
  74 struct ExpansionRom {
  75         /* -First 16 bytes of the expansion ROM */
  76         __u8   er_Type;         /* Board type, size and flags */
  77         __u8   er_Product;      /* Product number, assigned by manufacturer */
  78         __u8   er_Flags;                /* Flags */
  79         __u8   er_Reserved03;   /* Must be zero ($ff inverted) */
  80         __be16 er_Manufacturer; /* Unique ID, ASSIGNED BY COMMODORE-AMIGA! */
  81         __be32 er_SerialNumber; /* Available for use by manufacturer */
  82         __be16 er_InitDiagVec;  /* Offset to optional "DiagArea" structure */
  83         __u8   er_Reserved0c;
  84         __u8   er_Reserved0d;
  85         __u8   er_Reserved0e;
  86         __u8   er_Reserved0f;
  87 } __packed;
  88
  89 /* er_Type board type bits */
  90 #define ERT_TYPEMASK    0xc0
  91 #define ERT_ZORROII     0xc0
  92 #define ERT_ZORROIII    0x80
  93
  94 /* other bits defined in er_Type */
  95 #define ERTB_MEMLIST    5               /* Link RAM into free memory list */
  96 #define ERTF_MEMLIST    (1<<5)
  97
  98 struct ConfigDev {
  99         struct Node     cd_Node;
 100         __u8            cd_Flags;       /* (read/write) */
 101         __u8            cd_Pad;         /* reserved */
 102         struct ExpansionRom cd_Rom;     /* copy of board's expansion ROM */
 103         __be32          cd_BoardAddr;   /* where in memory the board was placed */
 104         __be32          cd_BoardSize;   /* size of board in bytes */
 105         __be16          cd_SlotAddr;    /* which slot number (PRIVATE) */
 106         __be16          cd_SlotSize;    /* number of slots (PRIVATE) */
 107         __be32          cd_Driver;      /* pointer to node of driver */
 108         __be32          cd_NextCD;      /* linked list of drivers to config */
 109         __be32          cd_Unused[4];   /* for whatever the driver wants */
 110 } __packed;
 111
 112 #define ZORRO_NUM_AUTO          16
 113
 114 #endif /* _UAPI_LINUX_ZORRO_H */