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[linux-2.6.git] / drivers / s390 / char / tape_3590.h
1 /*
2  *  drivers/s390/char/tape_3590.h
3  *    tape device discipline for 3590 tapes.
4  *
5  *    Copyright (C) IBM Corp. 2001,2006
6  *    Author(s): Stefan Bader <shbader@de.ibm.com>
7  *               Michael Holzheu <holzheu@de.ibm.com>
8  *               Martin Schwidefsky <schwidefsky@de.ibm.com>
9  */
10
11 #ifndef _TAPE_3590_H
12 #define _TAPE_3590_H
13
14 #define MEDIUM_SENSE    0xc2
15 #define READ_PREVIOUS   0x0a
16 #define MODE_SENSE      0xcf
17 #define PERFORM_SS_FUNC 0x77
18 #define READ_SS_DATA    0x3e
19
20 #define PREP_RD_SS_DATA 0x18
21 #define RD_ATTMSG       0x3
22
23 #define SENSE_BRA_PER  0
24 #define SENSE_BRA_CONT 1
25 #define SENSE_BRA_RE   2
26 #define SENSE_BRA_DRE  3
27
28 #define SENSE_FMT_LIBRARY       0x23
29 #define SENSE_FMT_UNSOLICITED   0x40
30 #define SENSE_FMT_COMMAND_REJ   0x41
31 #define SENSE_FMT_COMMAND_EXEC0 0x50
32 #define SENSE_FMT_COMMAND_EXEC1 0x51
33 #define SENSE_FMT_EVENT0        0x60
34 #define SENSE_FMT_EVENT1        0x61
35 #define SENSE_FMT_MIM           0x70
36 #define SENSE_FMT_SIM           0x71
37
38 #define MSENSE_UNASSOCIATED      0x00
39 #define MSENSE_ASSOCIATED_MOUNT  0x01
40 #define MSENSE_ASSOCIATED_UMOUNT 0x02
41
42 #define TAPE_3590_MAX_MSG        0xb0
43
44 /* Datatypes */
45
46 struct tape_3590_disc_data {
47         unsigned char modeset_byte;
48         int read_back_op;
49 };
50
51 struct tape_3590_sense {
52
53         unsigned int command_rej:1;
54         unsigned int interv_req:1;
55         unsigned int bus_out_check:1;
56         unsigned int eq_check:1;
57         unsigned int data_check:1;
58         unsigned int overrun:1;
59         unsigned int def_unit_check:1;
60         unsigned int assgnd_elsew:1;
61
62         unsigned int locate_fail:1;
63         unsigned int inst_online:1;
64         unsigned int reserved:1;
65         unsigned int blk_seq_err:1;
66         unsigned int begin_part:1;
67         unsigned int wr_mode:1;
68         unsigned int wr_prot:1;
69         unsigned int not_cap:1;
70
71         unsigned int bra:2;
72         unsigned int lc:3;
73         unsigned int vlf_active:1;
74         unsigned int stm:1;
75         unsigned int med_pos:1;
76
77         unsigned int rac:8;
78
79         unsigned int rc_rqc:16;
80
81         unsigned int mc:8;
82
83         unsigned int sense_fmt:8;
84
85         union {
86                 struct {
87                         unsigned int emc:4;
88                         unsigned int smc:4;
89                         unsigned int sev:2;
90                         unsigned int reserved:6;
91                         unsigned int md:8;
92                         unsigned int refcode:8;
93                         unsigned int mid:16;
94                         unsigned int mp:16;
95                         unsigned char volid[6];
96                         unsigned int fid:8;
97                 } f70;
98                 struct {
99                         unsigned int emc:4;
100                         unsigned int smc:4;
101                         unsigned int sev:2;
102                         unsigned int reserved1:5;
103                         unsigned int mdf:1;
104                         unsigned char md[3];
105                         unsigned int simid:8;
106                         unsigned int uid:16;
107                         unsigned int refcode1:16;
108                         unsigned int refcode2:16;
109                         unsigned int refcode3:16;
110                         unsigned int reserved2:8;
111                 } f71;
112                 unsigned char data[14];
113         } fmt;
114         unsigned char pad[10];
115
116 } __attribute__ ((packed));
117
118 struct tape_3590_med_sense {
119         unsigned int macst:4;
120         unsigned int masst:4;
121         char pad[127];
122 } __attribute__ ((packed));
123
124 #endif /* _TAPE_3590_H */