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
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} __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} __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} __packed;
111
112#define ZORRO_NUM_AUTO		16
113
114#endif /* _UAPI_LINUX_ZORRO_H */
115