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/*

 *  linux/zorro.h -- Amiga AutoConfig (Zorro) Bus Definitions

 *

 *  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.

 */

#ifndef _LINUX_ZORRO_H

#define _LINUX_ZORRO_H

#ifndef __ASSEMBLY__

    /*

     *  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)

#define ZORRO_ID(manuf, prod, epc) \

    ((ZORRO_MANUF_##manuf << 16) | ((prod) << 8) | (epc))

typedef __u32 zorro_id;

#define ZORRO_WILDCARD          (0xffffffff)    /* not official */

/* Include the ID list */

#include <linux/zorro_ids.h>

    /*

     *  GVP identifies most of its products through the 'extended product code'

     *  (epc). The epc has to be ANDed with the GVP_PRODMASK before the

     *  identification.

     */

#define GVP_PRODMASK                    (0xf8)

#define GVP_SCSICLKMASK                 (0x01)

enum GVP_flags {

    GVP_IO              = 0x01,

    GVP_ACCEL           = 0x02,

    GVP_SCSI            = 0x04,

    GVP_24BITDMA        = 0x08,

    GVP_25BITDMA        = 0x10,

    GVP_NOBANK          = 0x20,

    GVP_14MHZ           = 0x40,

};

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));

#else /* __ASSEMBLY__ */

LN_Succ         = 0

LN_Pred         = LN_Succ+4

LN_Type         = LN_Pred+4

LN_Pri          = LN_Type+1

LN_Name         = LN_Pri+1

LN_sizeof       = LN_Name+4

ER_Type         = 0

ER_Product      = ER_Type+1

ER_Flags        = ER_Product+1

ER_Reserved03   = ER_Flags+1

ER_Manufacturer = ER_Reserved03+1

ER_SerialNumber = ER_Manufacturer+2

ER_InitDiagVec  = ER_SerialNumber+4

ER_Reserved0c   = ER_InitDiagVec+2

ER_Reserved0d   = ER_Reserved0c+1

ER_Reserved0e   = ER_Reserved0d+1

ER_Reserved0f   = ER_Reserved0e+1

ER_sizeof       = ER_Reserved0f+1

CD_Node         = 0

CD_Flags        = CD_Node+LN_sizeof

CD_Pad          = CD_Flags+1

CD_Rom          = CD_Pad+1

CD_BoardAddr    = CD_Rom+ER_sizeof

CD_BoardSize    = CD_BoardAddr+4

CD_SlotAddr     = CD_BoardSize+4

CD_SlotSize     = CD_SlotAddr+2

CD_Driver       = CD_SlotSize+2

CD_NextCD       = CD_Driver+4

CD_Unused       = CD_NextCD+4

CD_sizeof       = CD_Unused+(4*4)

#endif /* __ASSEMBLY__ */

#ifndef __ASSEMBLY__

#define ZORRO_NUM_AUTO          16

#ifdef __KERNEL__

#include <linux/init.h>

#include <linux/ioport.h>

#include <asm/zorro.h>

struct zorro_dev {

    struct ExpansionRom rom;

    zorro_id id;

    u16 slotaddr;

    u16 slotsize;

    char name[64];

    struct resource resource;

};

extern unsigned int zorro_num_autocon;  /* # of autoconfig devices found */

extern struct zorro_dev zorro_autocon[ZORRO_NUM_AUTO];

    /*

     *  Zorro Functions

     */

extern void zorro_init(void);

extern void zorro_name_device(struct zorro_dev *dev);

extern struct zorro_dev *zorro_find_device(zorro_id id,

                                           struct zorro_dev *from);

#define zorro_request_device(z, name) \

    request_mem_region((z)->resource.start, \

                       (z)->resource.end-(z)->resource.start+1, (name))

#define zorro_check_device(z) \

    check_mem_region((z)->resource.start, \

                     (z)->resource.end-(z)->resource.start+1)

#define zorro_release_device(z) \

    release_mem_region((z)->resource.start, \

                       (z)->resource.end-(z)->resource.start+1)

    /*

     *  Bitmask indicating portions of available Zorro II RAM that are unused

     *  by the system. Every bit represents a 64K chunk, for a maximum of 8MB

     *  (128 chunks, physical 0x00200000-0x009fffff).

     *

     *  If you want to use (= allocate) portions of this RAM, you should clear

     *  the corresponding bits.

     */

extern __u32 zorro_unused_z2ram[4];

#define Z2RAM_START             (0x00200000)

#define Z2RAM_END               (0x00a00000)

#define Z2RAM_SIZE              (0x00800000)

#define Z2RAM_CHUNKSIZE         (0x00010000)

#define Z2RAM_CHUNKMASK         (0x0000ffff)

#define Z2RAM_CHUNKSHIFT        (16)

#endif /* !__ASSEMBLY__ */

#endif /* __KERNEL__ */

#endif /* _LINUX_ZORRO_H */