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      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 */
    115