diff options
author | dufault <dufault@FreeBSD.org> | 1995-03-21 11:21:08 +0000 |
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committer | dufault <dufault@FreeBSD.org> | 1995-03-21 11:21:08 +0000 |
commit | 274a8d5ee2f5e2f80b359cbb60feedce7879b4fe (patch) | |
tree | c976e70835fd9cfefdf009bac7ee768f44b8b8b0 /sys/scsi/scsi_tape.h | |
parent | 0d274572e35245942a094cbb30772453c9a4c109 (diff) | |
download | FreeBSD-src-274a8d5ee2f5e2f80b359cbb60feedce7879b4fe.zip FreeBSD-src-274a8d5ee2f5e2f80b359cbb60feedce7879b4fe.tar.gz |
cd.c: Julian's CD audio cleanup
sd.c: Julian's removal of subdriver requests
st.c, scsi_tape.h: Julian's suport of compressed tape drives
Note: compressed tape drives are still not working fully.
scsiconf.h, scsi_base.c, scsi_driver.c: address problems in probes
and error console logs
Diffstat (limited to 'sys/scsi/scsi_tape.h')
-rw-r--r-- | sys/scsi/scsi_tape.h | 90 |
1 files changed, 89 insertions, 1 deletions
diff --git a/sys/scsi/scsi_tape.h b/sys/scsi/scsi_tape.h index 3741136..ec852ea 100644 --- a/sys/scsi/scsi_tape.h +++ b/sys/scsi/scsi_tape.h @@ -21,7 +21,7 @@ /* * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 * - * $Id: scsi_tape.h,v 1.9 1994/09/28 20:16:42 se Exp $ + * $Id: scsi_tape.h,v 1.10 1994/10/28 13:19:34 jkh Exp $ */ #ifndef SCSI_SCSI_TAPE_H #define SCSI_SCSI_TAPE_H 1 @@ -156,6 +156,94 @@ struct blk_desc_cipher #define SR150_AUI 0x02 /* autoload inhibit */ }; +/* + * This structure defines the various mode pages that tapes know about. + */ +#define PAGE_HEADERLEN 2 +struct tape_pages +{ + u_char pg_code; /* page code */ +#define ST_PAGE_CONFIGURATION 0x10 +#define ST_PAGE_MEDIUM_PART 0x11 +#define ST_PAGE_MEDIUM_PART2 0x12 +#define ST_PAGE_MEDIUM_PART3 0x13 +#define ST_PAGE_MEDIUM_PART4 0x14 +#define ST_P_CODE 0x3F /* page code */ +#define ST_P_PS 0x80 /* page savable */ + u_char pg_length; /* page length */ + union + { + struct + { + u_char active_format; /* active format for density*/ +#define ST_P_CAP 0x40 /* change active Partition */ +#define ST_P_CAF 0x20 /* change active format */ +#define ST_P_AF 0x1F /* active format */ + u_char active_partition; /* */ + u_char write_buffer_full_ratio; /* highwater writing*/ + u_char read_buffer_empty_ratio; /* lowwater reading*/ + u_char write_delay_high; /* # 100mSecs before flush*/ + u_char write_delay_low; /* of buffer to the media */ + u_char flags1; /* various single bit flags */ +#define ST_P_DBR 0x80 /* supports data-buffer recovery */ +#define ST_P_BIS 0x40 /* supports Block_ID */ +#define ST_P_RSmk 0x20 /* Reports setmarks during reads and spaces */ +#define ST_P_AVC 0x10 /* Supports Automatic Velocity Control */ +#define ST_P_SOCF 0x0C /* Stop On Consecutive Filemarks, */ +#define ST_P_RBO 0x02 /* Recoverd Buffered Data order, 1 = LIFO */ +#define ST_P_REW 0x01 /* Report Early Warning (see SEW) */ + u_char gap_size; /*I/B gap, 1=min 0=default */ + u_char flags2; /* various single bit flags */ +#define ST_P_EOD 0xE0 /* What is and EOD....*/ +#define ST_P_EOD_DEF 0x00 /* Drive's default */ +#define ST_P_EOD_FMT 0x20 /* define by format */ +#define ST_P_EOD_SOCF 0x40 /* define by SOCF (above) */ +#define ST_P_EEG 0x10 /* use EOD above */ +#define ST_P_SEW 0x04 /* Synchronise at Early warning.. flush buffers*/ + u_char early_warn_high;/* buf size at early warning */ + u_char early_warn_med; /* after early warning, only */ + u_char early_warn_low; /* buufer this much data */ + u_char data_compress_alg; /* 0 = off, 1 = default */ + u_char reserved; /* The standard says so */ + } configuration; + struct + { +#define ST_MAXPARTS 16 /*for now*/ + u_char max_add_parts; /* that drive allows */ + u_char parts_defined; /* max min(ST_MAXPARTS,max_add_parts) */ + u_char flags; +#define ST_P_FDP 0x80 +#define ST_P_SDP 0x40 +#define ST_P_IDP 0x20 +#define ST_P_PSUM 0x18 /* units of part defs.. */ +#define ST_P_PSUM_BYTES 0x0 /* units of part defs.. */ +#define ST_P_PSUM_KBYTES 0x08 /* units of part defs.. */ +#define ST_P_PSUM_MBYTES 0x10 /* units of part defs.. */ + u_char medium_format_recog; +#define ST_P_REC_NONE 0x00 +#define ST_P_REC_FMT 0x01 /* can recognise format of new media */ +#define ST_P_REC_PART 0x02 /* can recognise partitions of new media */ +#define ST_P_REC_FMT_PART 0x03 /* can recognise format and parts */ + u_char reserved1; + u_char reserved2; + struct + { + u_char high; + u_char low; + }part[ST_MAXPARTS]; + } medium_partition; + struct + { + struct + { + u_char high; + u_char low; + }part[ST_MAXPARTS]; + } medium_partition_extra; + }pages; +}; + + #ifndef NEW_SCSICONF |