linux-headers (unknown)
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
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 } __attribute__((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 } __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
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 } __attribute__((packed));
111
112 #define ZORRO_NUM_AUTO 16
113
114 #endif /* _LINUX_ZORRO_H */
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