1.\" Copyright (c) 1986, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" %sccs.include.redist.man% 5.\" 6.\" @(#)tmscp.4 8.1 (Berkeley) 06/05/93 7.\" 8.Dd 9.Dt TMSCP 4 vax 10.Os BSD 4.3 11.Sh NAME 12.Nm tmscp 13.Nd 14.Tn DEC TMSCP 15magtape interface 16.Sh SYNOPSIS 17.Cd "controller tmscp0 at uba? csr 0174500 vector tmscpintr" 18.Cd "tape tms0 at tmscp0 drive 0" 19.Sh DESCRIPTION 20Tape controllers compatible with the 21.Tn DEC 22Tape Mass Storage Control Protocol 23.Pq Tn TMSCP 24architecture 25such as the 26.Tn TU81 27and the 28.Tn TK50 29provide a standard tape drive interface 30as described in 31.Xr mtio 4 . 32The controller communicates with the host through a packet 33oriented protocol. 34Consult the file 35.Aq Pa vax/tmscp.h 36for a detailed 37description of this protocol. 38.Sh DIAGNOSTICS 39.Bl -diag 40.It tmscp controller failed to init. 41The controller initialization procedure failed. 42This probably indicates a hardware problem. 43.Pp 44.It tmscp%d: sa 0%o, state %d. 45(Additional status information given after a hard 46.Tn I/O 47error.) 48The values of the controller status register and the internal 49driver state are printed. 50.Pp 51.It tmscp%d: random interrupt ignored. 52An unexpected interrupt was received (e.g. when no 53.Tn I/O 54was 55pending). The interrupt is ignored. 56.Pp 57.It tmscp%d: interrupt in unknown state %d ignored. 58An interrupt was received when the driver was in an unknown 59internal state. Indicates a hardware problem or a driver bug. 60.Pp 61.It tmscp%d: fatal error (0%o). 62The controller detected a ``fatal error'' in the status returned 63to the host. The contents of the status register are displayed. 64.Pp 65.It OFFLINE. 66(Additional status information given after a hard 67.Tn I/O 68error.) 69A hard 70.Tn I/O 71error occurred because the drive was not on-line. 72.Pp 73.It tmscp%d: hard error 74.It tmscp%d: soft error. 75These errors precede an interpretation of a 76.Tn TMSCP 77error message 78returned by the controller to the host. 79.Tn TMSCP 80errors may be: 81.Pp 82.Bd -filled -offset indent -compact 83.It controller error, event 0%o. 84.It host memory access error, event 0%o, addr 0%o. 85.It tape transfer error, unit %d, grp 0x%x, event 0%o. 86.It STI error, unit %d, event 0%o. 87.It STI Drive Error Log, unit %d, event 0%o. 88.It STI Formatter Error Log, unit %d, event 0%o. 89.It unknown error, unit %d, format 0%o, event 0%o. 90.Ed 91.El 92.Sh SEE ALSO 93.Xr mt 1 , 94.Xr tar 1 , 95.Xr tp 1 , 96.Xr mtio 4 , 97.Xr tm 4 , 98.Xr ts 4 , 99.Xr ut 4 , 100.Xr dmesg 8 101.Sh HISTORY 102The 103.Nm 104driver appeared in 105.Bx 4.3 . 106