1 /* tmreg.h 4.6 82/02/03 */ 2 3 /* 4 * TM11 controller registers 5 */ 6 struct tmdevice { 7 u_short tmer; /* error register, per drive */ 8 u_short tmcs; /* control-status register */ 9 short tmbc; /* byte/frame count */ 10 u_short tmba; /* address */ 11 short tmdb; /* data buffer */ 12 short tmrd; /* read lines */ 13 short tmmr; /* maintenance register */ 14 }; 15 16 #define b_repcnt b_bcount 17 #define b_command b_resid 18 19 /* bits in tmcs */ 20 #define TM_GO 0000001 21 #define TM_OFFL 0000000 /* offline */ 22 #define TM_RCOM 0000002 /* read */ 23 #define TM_WCOM 0000004 /* write */ 24 #define TM_WEOF 0000006 /* write-eof */ 25 #define TM_SFORW 0000010 /* space forward */ 26 #define TM_SREV 0000012 /* space backwards */ 27 #define TM_WIRG 0000014 /* write with xtra interrecord gap */ 28 #define TM_REW 0000016 /* rewind */ 29 #define TM_SENSE TM_IE /* sense (internal to driver) */ 30 31 #define tmreverseop(cmd) ((cmd)==TM_SREV || (cmd)==TM_REW) 32 33 /* TM_SNS is a pseudo-op used to get tape status */ 34 #define TM_IE 0000100 /* interrupt enable */ 35 #define TM_CUR 0000200 /* control unit is ready */ 36 #define TM_DCLR 0010000 /* drive clear */ 37 #define TM_D800 0060000 /* select 800 bpi density */ 38 #define TM_ERR 0100000 /* drive error summary */ 39 40 /* bits in tmer */ 41 #define TMER_ILC 0100000 /* illegal command */ 42 #define TMER_EOF 0040000 /* end of file */ 43 #define TMER_CRE 0020000 /* cyclic redundancy error */ 44 #define TMER_PAE 0010000 /* parity error */ 45 #define TMER_BGL 0004000 /* bus grant late */ 46 #define TMER_EOT 0002000 /* at end of tape */ 47 #define TMER_RLE 0001000 /* record length error */ 48 #define TMER_BTE 0000400 /* bad tape error */ 49 #define TMER_NXM 0000200 /* non-existant memory */ 50 #define TMER_SELR 0000100 /* tape unit properly selected */ 51 #define TMER_BOT 0000040 /* at beginning of tape */ 52 #define TMER_CH7 0000020 /* 7 channel tape */ 53 #define TMER_SDWN 0000010 /* gap settling down */ 54 #define TMER_WRL 0000004 /* tape unit write protected */ 55 #define TMER_RWS 0000002 /* tape unit rewinding */ 56 #define TMER_TUR 0000001 /* tape unit ready */ 57 58 #define TMER_BITS \ 59 "\10\20ILC\17EOF\16CRE\15PAE\14BGL\13EOT\12RLE\11BTE\10NXM\ 60 \7SELR\6BOT\5CH7\4SDWN\3WRL\2RWS\1TUR" 61 62 #define TMER_HARD (TMER_ILC|TMER_EOT) 63 #define TMER_SOFT (TMER_CRE|TMER_PAE|TMER_BGL|TMER_RLE|TMER_BTE|TMER_NXM) 64