1
2 #ifndef _ST_H
3 #define _ST_H
4
5
6
7
8 #ifndef _SCSI_H
9 #include "scsi.h"
10 #endif
11
12 typedef struct {
13 int in_use;
14 int buffer_size;
15 int buffer_blocks;
16 int buffer_bytes;
17 int read_pointer;
18 int writing;
19 int last_result;
20 int last_result_fatal;
21 unsigned char *b_data;
22 int orig_size;
23 unsigned char *orig_b_data;
24 } ST_buffer;
25
26 typedef struct {
27 kdev_t devt;
28 unsigned capacity;
29 struct wait_queue * waiting;
30 Scsi_Device* device;
31 unsigned char dirty;
32 unsigned char rw;
33 unsigned char ready;
34 unsigned char eof;
35 unsigned char write_prot;
36 unsigned char drv_write_prot;
37 unsigned char in_use;
38 unsigned char eof_hit;
39 unsigned char drv_buffer;
40 unsigned char do_buffer_writes;
41 unsigned char do_async_writes;
42 unsigned char do_read_ahead;
43 unsigned char do_auto_lock;
44 unsigned char two_fm;
45 unsigned char fast_mteom;
46 unsigned char density;
47 unsigned char door_locked;
48 ST_buffer * buffer;
49 struct semaphore sem;
50 int block_size;
51 int min_block;
52 int max_block;
53 int write_threshold;
54 int recover_count;
55 int drv_block;
56 unsigned char moves_after_eof;
57 unsigned char at_sm;
58 struct mtget * mt_status;
59 Scsi_Cmnd SCpnt;
60 #if DEBUG
61 unsigned char write_pending;
62 int nbr_finished;
63 int nbr_waits;
64 #endif
65 } Scsi_Tape;
66
67 extern Scsi_Tape * scsi_tapes;
68
69
70 #define ST_NOEOF 0
71 #define ST_FM 1
72 #define ST_EOM_OK 2
73 #define ST_EOM_ERROR 3
74 #define ST_EOD 4
75
76
77 #define ST_IDLE 0
78 #define ST_READING 1
79 #define ST_WRITING 2
80
81
82 #define ST_READY 0
83 #define ST_NOT_READY 1
84 #define ST_NO_TAPE 2
85
86
87 #define ST_UNLOCKED 0
88 #define ST_LOCKED_EXPLICIT 1
89 #define ST_LOCKED_AUTO 2
90 #define ST_LOCK_FAILS 3
91
92
93 #define QFA_REQUEST_BLOCK 0x02
94 #define QFA_SEEK_BLOCK 0x0c
95
96 #endif
97