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 _LINUX_ZORRO_H
 13#define _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
 39typedef __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
 55enum 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
 66struct 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} __attribute__((packed));
 73
 74struct 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} __attribute__((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
 98struct 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} __attribute__((packed));
111
112#define ZORRO_NUM_AUTO		16
113
114#endif /* _LINUX_ZORRO_H */