Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Remove outdated list of density codes. mt(1) has helpful

Browse Source 
hints and the SCSI specification has the real, current list.
This commit is contained in:
soren 1999-09-30 12:12:41 +00:00
parent b535241c18
commit 1d04441597
1 changed files with 1 additions and 49 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
sys/dev/scsipi/scsi_tape.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: scsi_tape.h,v 1.17 1998/08/17 00:49:01 mycroft Exp $ */
/* $NetBSD: scsi_tape.h,v 1.18 1999/09/30 12:12:41 soren Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -227,54 +227,6 @@ struct scsi_tape_locate {
u_int8_t control;
};
/**********************************************************************
from the scsi2 spec
Value Tracks Density(bpi) Code Type Reference Note
0x1 9 800 NRZI R X3.22-1983 2
0x2 9 1600 PE R X3.39-1986 2
0x3 9 6250 GCR R X3.54-1986 2
0x5 4/9 8000 GCR C X3.136-1986 1
0x6 9 3200 PE R X3.157-1987 2
0x7 4 6400 IMFM C X3.116-1986 1
0x8 4 8000 GCR CS X3.158-1986 1
0x9 18 37871 GCR C X3B5/87-099 2
0xA 22 6667 MFM C X3B5/86-199 1
0xB 4 1600 PE C X3.56-1986 1
0xC 24 12690 GCR C HI-TC1 1,5
0xD 24 25380 GCR C HI-TC2 1,5
0xF 15 10000 GCR C QIC-120 1,5
0x10 18 10000 GCR C QIC-150 1,5
0x11 26 16000 GCR C QIC-320(525?) 1,5
0x12 30 51667 RLL C QIC-1350 1,5
0x13 1 61000 DDS CS X3B5/88-185A 4
0x14 1 43245 RLL CS X3.202-1991 4
0x15 1 45434 RLL CS ECMA TC17 4
0x16 48 10000 MFM C X3.193-1990 1
0x17 48 42500 MFM C X3B5/91-174 1
0x45 73 67733 RLL C QIC3095
where Code means:
NRZI Non Return to Zero, change on ones
GCR Group Code Recording
PE Phase Encoded
IMFM Inverted Modified Frequency Modulation
MFM Modified Frequency Modulation
DDS Dat Data Storage
RLL Run Length Encoding
where Type means:
R Reel-to-Reel
C Cartridge
CS cassette
where Notes means:
1 Serial Recorded
2 Parallel Recorded
3 Old format know as QIC-11
4 Helical Scan
5 Not ANSI standard, rather industry standard.
********************************************************************/
#define HALFINCH_800 0x01
#define HALFINCH_1600 0x02
#define HALFINCH_6250 0x03