[PATCH] s390: 3590 tape driver

      Michael Holzheu <holzheu@de.ibm.com>,
      Martin Schwidefsky <schwidefsky@de.ibm.com>

Signed-off-by: Stefan Bader <shbader@de.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 124 insertions, 0 deletions

diff --git a/drivers/s390/char/tape_3590.h b/drivers/s390/char/tape_3590.h
new file mode 100644
index 000000000000..cf274b9445a6
--- /dev/null
+++ b/drivers/s390/char/tape_3590.h
@@ -0,0 +1,124 @@
+/*
+ *  drivers/s390/char/tape_3590.h
+ *    tape device discipline for 3590 tapes.
+ *
+ *    Copyright (C) IBM Corp. 2001,2006
+ *    Author(s): Stefan Bader <shbader@de.ibm.com>
+ *               Michael Holzheu <holzheu@de.ibm.com>
+ *               Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#ifndef _TAPE_3590_H
+#define _TAPE_3590_H
+
+#define MEDIUM_SENSE    0xc2
+#define READ_PREVIOUS   0x0a
+#define MODE_SENSE      0xcf
+#define PERFORM_SS_FUNC 0x77
+#define READ_SS_DATA    0x3e
+
+#define PREP_RD_SS_DATA 0x18
+#define RD_ATTMSG       0x3
+
+#define SENSE_BRA_PER  0
+#define SENSE_BRA_CONT 1
+#define SENSE_BRA_RE   2
+#define SENSE_BRA_DRE  3
+
+#define SENSE_FMT_LIBRARY       0x23
+#define SENSE_FMT_UNSOLICITED   0x40
+#define SENSE_FMT_COMMAND_REJ   0x41
+#define SENSE_FMT_COMMAND_EXEC0 0x50
+#define SENSE_FMT_COMMAND_EXEC1 0x51
+#define SENSE_FMT_EVENT0        0x60
+#define SENSE_FMT_EVENT1        0x61
+#define SENSE_FMT_MIM           0x70
+#define SENSE_FMT_SIM           0x71
+
+#define MSENSE_UNASSOCIATED      0x00
+#define MSENSE_ASSOCIATED_MOUNT  0x01
+#define MSENSE_ASSOCIATED_UMOUNT 0x02
+
+#define TAPE_3590_MAX_MSG        0xb0
+
+/* Datatypes */
+
+struct tape_3590_disc_data {
+        unsigned char modeset_byte;
+        int read_back_op;
+};
+
+struct tape_3590_sense {
+
+        unsigned int command_rej:1;
+        unsigned int interv_req:1;
+        unsigned int bus_out_check:1;
+        unsigned int eq_check:1;
+        unsigned int data_check:1;
+        unsigned int overrun:1;
+        unsigned int def_unit_check:1;
+        unsigned int assgnd_elsew:1;
+
+        unsigned int locate_fail:1;
+        unsigned int inst_online:1;
+        unsigned int reserved:1;
+        unsigned int blk_seq_err:1;
+        unsigned int begin_part:1;
+        unsigned int wr_mode:1;
+        unsigned int wr_prot:1;
+        unsigned int not_cap:1;
+
+        unsigned int bra:2;
+        unsigned int lc:3;
+        unsigned int vlf_active:1;
+        unsigned int stm:1;
+        unsigned int med_pos:1;
+
+        unsigned int rac:8;
+
+        unsigned int rc_rqc:16;
+
+        unsigned int mc:8;
+
+        unsigned int sense_fmt:8;
+
+        union {
+                struct {
+                        unsigned int emc:4;
+                        unsigned int smc:4;
+                        unsigned int sev:2;
+                        unsigned int reserved:6;
+                        unsigned int md:8;
+                        unsigned int refcode:8;
+                        unsigned int mid:16;
+                        unsigned int mp:16;
+                        unsigned char volid[6];
+                        unsigned int fid:8;
+                } f70;
+                struct {
+                        unsigned int emc:4;
+                        unsigned int smc:4;
+                        unsigned int sev:2;
+                        unsigned int reserved1:5;
+                        unsigned int mdf:1;
+                        unsigned char md[3];
+                        unsigned int simid:8;
+                        unsigned int uid:16;
+                        unsigned int refcode1:16;
+                        unsigned int refcode2:16;
+                        unsigned int refcode3:16;
+                        unsigned int reserved2:8;
+                } f71;
+                unsigned char data[14];
+        } fmt;
+        unsigned char pad[10];
+
+} __attribute__ ((packed));
+
+struct tape_3590_med_sense {
+        unsigned int macst:4;
+        unsigned int masst:4;
+        char pad[127];
+} __attribute__ ((packed));
+
+#endif /* _TAPE_3590_H */