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 */