Commit | Line | Data |
---|---|---|
3d2087b6 | 1 | /* saio.h 4.6 %G% */ |
96dca2cc BJ |
2 | |
3 | /* | |
4 | * header file for standalone package | |
5 | */ | |
6 | ||
7 | /* | |
8 | * io block: includes an | |
9 | * inode, cells for the use of seek, etc, | |
10 | * and a buffer. | |
11 | */ | |
12 | struct iob { | |
13 | char i_flgs; | |
14 | struct inode i_ino; | |
15 | int i_unit; | |
16 | daddr_t i_boff; | |
17 | daddr_t i_cyloff; | |
18 | off_t i_offset; | |
19 | daddr_t i_bn; | |
20 | char *i_ma; | |
21 | int i_cc; | |
cb31612d KM |
22 | char i_buf[MAXBSIZE]; |
23 | union { | |
24 | struct fs ui_fs; | |
25 | char dummy[SBSIZE]; | |
26 | } i_un; | |
96dca2cc | 27 | }; |
cb31612d | 28 | #define i_fs i_un.ui_fs |
96dca2cc BJ |
29 | |
30 | #define F_READ 01 | |
31 | #define F_WRITE 02 | |
32 | #define F_ALLOC 04 | |
33 | #define F_FILE 010 | |
34 | ||
35 | /* | |
36 | * dev switch | |
37 | */ | |
38 | struct devsw { | |
39 | char *dv_name; | |
40 | int (*dv_strategy)(); | |
41 | int (*dv_open)(); | |
42 | int (*dv_close)(); | |
43 | }; | |
44 | ||
45 | struct devsw devsw[]; | |
46 | ||
47 | /* | |
48 | * request codes. Must be the same a F_XXX above | |
49 | */ | |
50 | #define READ 1 | |
51 | #define WRITE 2 | |
52 | ||
53 | #define NBUFS 4 | |
54 | ||
cb31612d | 55 | char b[NBUFS][MAXBSIZE]; |
96dca2cc BJ |
56 | daddr_t blknos[NBUFS]; |
57 | ||
58 | #define NFILES 4 | |
59 | struct iob iob[NFILES]; | |
3d2087b6 KM |
60 | |
61 | #define PHYSUBA0 0x20006000 | |
62 | #define PHYSMBA0 0x20010000 | |
63 | #define PHYSMBA1 0x20012000 | |
64 | #define PHYSUMEM 0x2013e000 |