2 nubus.h: various definitions and prototypes for NuBus drivers to use.
4 Originally written by Alan Cox.
6 Hacked to death by C. Scott Ananian and David Huggins-Daines.
8 Some of the constants in here are from the corresponding
9 NetBSD/OpenBSD header file, by Allen Briggs. We figured out the
10 rest of them on our own. */
14 #include <asm/nubus.h>
15 #include <uapi/linux/nubus.h>
18 struct nubus_board
* next
;
19 struct nubus_dev
* first_dev
;
21 /* Only 9-E actually exist, though 0-8 are also theoretically
22 possible, and 0 is a special case which represents the
23 motherboard and onboard peripherals (Ethernet, video) */
25 /* For slot 0, this is bogus. */
29 unsigned char* fblock
;
30 /* Root directory (does *not* always equal fblock + doffset!) */
31 unsigned char* directory
;
33 unsigned long slot_addr
;
34 /* Offset to root directory (sometimes) */
35 unsigned long doffset
;
36 /* Length over which to compute the crc */
37 unsigned long rom_length
;
38 /* Completely useless most of the time */
46 /* Next link in device list */
47 struct nubus_dev
* next
;
48 /* Directory entry in /proc/bus/nubus */
49 struct proc_dir_entry
* procdir
;
51 /* The functional resource ID of this device */
53 /* These are mostly here for convenience; we could always read
54 them from the ROMs if we wanted to */
55 unsigned short category
;
59 /* This is the device's name rather than the board's.
60 Sometimes they are different. Usually the board name is
63 /* MacOS driver (I kid you not) */
64 unsigned char* driver
;
65 /* Actually this is an offset */
68 unsigned char flags
, hwdevid
;
70 /* Functional directory */
71 unsigned char* directory
;
72 /* Much of our info comes from here */
73 struct nubus_board
* board
;
76 /* This is all NuBus devices (used to find devices later on) */
77 extern struct nubus_dev
* nubus_devices
;
78 /* This is all NuBus cards */
79 extern struct nubus_board
* nubus_boards
;
81 /* Generic NuBus interface functions, modelled after the PCI interface */
82 void nubus_scan_bus(void);
84 extern void nubus_proc_init(void);
86 static inline void nubus_proc_init(void) {}
88 int get_nubus_list(char *buf
);
89 int nubus_proc_attach_device(struct nubus_dev
*dev
);
90 /* If we need more precision we can add some more of these */
91 struct nubus_dev
* nubus_find_device(unsigned short category
,
95 const struct nubus_dev
* from
);
96 struct nubus_dev
* nubus_find_type(unsigned short category
,
98 const struct nubus_dev
* from
);
99 /* Might have more than one device in a slot, you know... */
100 struct nubus_dev
* nubus_find_slot(unsigned int slot
,
101 const struct nubus_dev
* from
);
103 /* These are somewhat more NuBus-specific. They all return 0 for
104 success and -1 for failure, as you'd expect. */
106 /* The root directory which contains the board and functional
108 int nubus_get_root_dir(const struct nubus_board
* board
,
109 struct nubus_dir
* dir
);
110 /* The board directory */
111 int nubus_get_board_dir(const struct nubus_board
* board
,
112 struct nubus_dir
* dir
);
113 /* The functional directory */
114 int nubus_get_func_dir(const struct nubus_dev
* dev
,
115 struct nubus_dir
* dir
);
117 /* These work on any directory gotten via the above */
118 int nubus_readdir(struct nubus_dir
* dir
,
119 struct nubus_dirent
* ent
);
120 int nubus_find_rsrc(struct nubus_dir
* dir
,
121 unsigned char rsrc_type
,
122 struct nubus_dirent
* ent
);
123 int nubus_rewinddir(struct nubus_dir
* dir
);
125 /* Things to do with directory entries */
126 int nubus_get_subdir(const struct nubus_dirent
* ent
,
127 struct nubus_dir
* dir
);
128 void nubus_get_rsrc_mem(void* dest
,
129 const struct nubus_dirent
*dirent
,
131 void nubus_get_rsrc_str(void* dest
,
132 const struct nubus_dirent
*dirent
,
134 #endif /* LINUX_NUBUS_H */
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