File: zorro.h

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zorroutils 0.05-2
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/*
 *  Amiga AutoConfig (Zorro) Bus Definitions (extracted from <linux/zorro.h>)
 *
 *  Copyright (C) 1995--2000 Geert Uytterhoeven
 *
 *  This file is subject to the terms and conditions of the GNU General Public
 *  License.  See the file COPYING in the main directory of this archive
 *  for more details.
 */

    /*
     *  Each Zorro board has a 32-bit ID of the form
     *
     *      mmmmmmmmmmmmmmmmppppppppeeeeeeee
     *
     *  with
     *
     *      mmmmmmmmmmmmmmmm	16-bit Manufacturer ID (assigned by CBM (sigh))
     *      pppppppp		8-bit Product ID (assigned by manufacturer)
     *      eeeeeeee		8-bit Extended Product ID (currently only used
     *				for some GVP boards)
     */


#define ZORRO_MANUF(id)		((id) >> 16)
#define ZORRO_PROD(id)		(((id) >> 8) & 0xff)
#define ZORRO_EPC(id)		((id) & 0xff)


struct Node {
    struct  Node *ln_Succ;	/* Pointer to next (successor) */
    struct  Node *ln_Pred;	/* Pointer to previous (predecessor) */
    __u8    ln_Type;
    __s8    ln_Pri;		/* Priority, for sorting */
    __s8    *ln_Name;		/* ID string, null terminated */
} __attribute__ ((packed));

struct ExpansionRom {
    /* -First 16 bytes of the expansion ROM */
    __u8  er_Type;		/* Board type, size and flags */
    __u8  er_Product;		/* Product number, assigned by manufacturer */
    __u8  er_Flags;		/* Flags */
    __u8  er_Reserved03;	/* Must be zero ($ff inverted) */
    __u16 er_Manufacturer;	/* Unique ID, ASSIGNED BY COMMODORE-AMIGA! */
    __u32 er_SerialNumber;	/* Available for use by manufacturer */
    __u16 er_InitDiagVec;	/* Offset to optional "DiagArea" structure */
    __u8  er_Reserved0c;
    __u8  er_Reserved0d;
    __u8  er_Reserved0e;
    __u8  er_Reserved0f;
} __attribute__ ((packed));

/* er_Type board type bits */
#define ERT_TYPEMASK	0xc0
#define ERT_ZORROII	0xc0
#define ERT_ZORROIII	0x80

/* other bits defined in er_Type */
#define ERTB_MEMLIST	5		/* Link RAM into free memory list */
#define ERTF_MEMLIST	(1<<5)

struct ConfigDev {
    struct Node 	cd_Node;
    __u8  		cd_Flags;	/* (read/write) */
    __u8  		cd_Pad; 	/* reserved */
    struct ExpansionRom cd_Rom; 	/* copy of board's expansion ROM */
    void		*cd_BoardAddr;	/* where in memory the board was placed */
    __u32 		cd_BoardSize;	/* size of board in bytes */
    __u16  		cd_SlotAddr;	/* which slot number (PRIVATE) */
    __u16  		cd_SlotSize;	/* number of slots (PRIVATE) */
    void		*cd_Driver;	/* pointer to node of driver */
    struct ConfigDev	*cd_NextCD;	/* linked list of drivers to config */
    __u32 		cd_Unused[4];	/* for whatever the driver wants */
} __attribute__ ((packed));