projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| ed2fb048 C |
1 | /* htreg.h 4.1 81/03/21 */ |
| 2 | ||
| 3 | struct htdevice | |
| 4 | { | |
| 5 | int htcs1; /* control status register */ | |
| 6 | int htds; /* drive status register */ | |
| 7 | int hter; /* error register */ | |
| 8 | int htmr; /* maintenance register */ | |
| 9 | int htas; /* attention status register */ | |
| 10 | int htfc; /* frame counter */ | |
| 11 | int htdt; /* drive type register */ | |
| 12 | int htck; /* nrzi check (crc) error character */ | |
| 13 | int htsn; /* serial number register */ | |
| 14 | int httc; /* tape controll register */ | |
| 15 | }; | |
| 16 | ||
| 17 | /* htcs1 */ | |
| 18 | #define HT_GO 000001 /* go bit */ | |
| 19 | #define HT_SENSE 000000 /* no operations (sense) */ | |
| 20 | #define HT_REWOFFL 000002 /* rewind offline */ | |
| 21 | #define HT_REW 000006 /* rewind */ | |
| 22 | #define HT_DCLR 000010 /* drive clear */ | |
| 23 | #define HT_RIP 000020 /* read in preset */ | |
| 24 | #define HT_ERASE 000024 /* erase */ | |
| 25 | #define HT_WEOF 000026 /* write tape mark */ | |
| 26 | #define HT_SFORW 000030 /* space forward */ | |
| 27 | #define HT_SREV 000032 /* space reverse */ | |
| 28 | #define HT_WCHFWD 000050 /* write check forward */ | |
| 29 | #define HT_WCHREV 000056 /* write check reverse */ | |
| 30 | #define HT_WCOM 000060 /* write forward */ | |
| 31 | #define HT_RCOM 000070 /* read forward */ | |
| 32 | #define HT_RREV 000076 /* read reverse */ | |
| 33 | ||
| 34 | /* htds */ | |
| 35 | #define HTDS_ATA 0100000 /* attention active */ | |
| 36 | #define HTDS_ERR 0040000 /* composite error */ | |
| 37 | #define HTDS_PIP 0020000 /* positioning in progress */ | |
| 38 | #define HTDS_MOL 0010000 /* medium on line */ | |
| 39 | #define HTDS_WRL 0004000 /* write lock */ | |
| 40 | #define HTDS_EOT 0002000 /* end of tape */ | |
| 41 | /* bit 9 is unused */ | |
| 42 | #define HTDS_DPR 0000400 /* drive present (always 1) */ | |
| 43 | #define HTDS_DRY 0000200 /* drive ready */ | |
| 44 | #define HTDS_SSC 0000100 /* slave status change */ | |
| 45 | #define HTDS_PES 0000040 /* phase-encoded status */ | |
| 46 | #define HTDS_SDWN 0000020 /* settle down */ | |
| 47 | #define HTDS_IDB 0000010 /* identification burst */ | |
| 48 | #define HTDS_TM 0000004 /* tape mark */ | |
| 49 | #define HTDS_BOT 0000002 /* beginning of tape */ | |
| 50 | #define HTDS_SLA 0000001 /* slave attention */ | |
| 51 | ||
| 52 | #define HTDS_BITS \ | |
| 53 | "\10\20ATA\17ERR\16PIP\15MOL\14WRL\13EOT\11DPR\10DRY\ | |
| 54 | \7SSC\6PES\5SDWN\4IDB\3TM\2BOT\1SLA" | |
| 55 | ||
| 56 | /* hter */ | |
| 57 | #define HTER_CORCRC 0100000 /* correctible data or ecc */ | |
| 58 | #define HTER_UNS 0040000 /* unsafe */ | |
| 59 | #define HTER_OPI 0020000 /* operation incomplete */ | |
| 60 | #define HTER_DTE 0010000 /* drive timing error */ | |
| 61 | #define HTER_NEF 0004000 /* non-executable function */ | |
| 62 | #define HTER_CSITM 0002000 /* correctable skew/illegal tape mark */ | |
| 63 | #define HTER_FCE 0001000 /* frame count error */ | |
| 64 | #define HTER_NSG 0000400 /* non-standard gap */ | |
| 65 | #define HTER_PEFLRC 0000200 /* format error or lrc error */ | |
| 66 | #define HTER_INCVPE 0000100 /* incorrectable data error or vertical | |
| 67 | parity error */ | |
| 68 | #define HTER_DPAR 0000040 /* data parity error */ | |
| 69 | #define HTER_FMT 0000020 /* format error */ | |
| 70 | #define HTER_CPAR 0000010 /* control bus parity error */ | |
| 71 | #define HTER_RMR 0000004 /* register modification refused */ | |
| 72 | #define HTER_ILR 0000002 /* illegal register */ | |
| 73 | #define HTER_ILF 0000001 /* illegal function */ | |
| 74 | ||
| 75 | #define HTER_BITS \ | |
| 76 | "\10\20CORCRC\17UNS\16OPI\15DTE\14NEF\13CSITM\12FCE\11NSG\10PEFLRC\ | |
| 77 | \7INCVPE\6DPAR\5FMT\4CPAR\3RMR\2ILR\1ILF" | |
| 78 | #define HTER_HARD \ | |
| 79 | (HTER_UNS|HTER_OPI|HTER_NEF|HTER_DPAR|HTER_FMT|HTER_CPAR| \ | |
| 80 | HTER_RMR|HTER_ILR|HTER_ILF) | |
| 81 | ||
| 82 | /* htdt */ | |
| 83 | #define HTDT_NSA 0100000 /* not sector addressed; always 1 */ | |
| 84 | #define HTDT_TAP 0040000 /* tape; always 1 */ | |
| 85 | #define HTDT_MOH 0020000 /* moving head; always 0 */ | |
| 86 | #define HTDT_7CH 0010000 /* 7 channel; always 0 */ | |
| 87 | #define HTDT_DRQ 0004000 /* drive requested; always 0 */ | |
| 88 | #define HTDT_SPR 0002000 /* slave present */ | |
| 89 | /* bit 9 is spare */ | |
| 90 | /* bits 8-0 are formatter/transport type */ | |
| 91 | ||
| 92 | /* httc */ | |
| 93 | #define HTTC_ACCL 0100000 /* transport is not reading/writing */ | |
| 94 | #define HTTC_FCS 0040000 /* frame count status */ | |
| 95 | #define HTTC_SAC 0020000 /* slave address change */ | |
| 96 | #define HTTC_EAODTE 0010000 /* enable abort on data xfer errors */ | |
| 97 | /* bits 8-10 are density select */ | |
| 98 | #define HTTC_800BPI 0001400 /* in bits 8-10, dens=1600 */ | |
| 99 | #define HTTC_1600BPI 0002000 /* in bits 8-10, dens=800 */ | |
| 100 | /* bits 4-7 are format select */ | |
| 101 | #define HTTC_PDP11 0000300 /* in bits 4-7, pdp11 normal format */ | |
| 102 | #define HTTC_EVEN 0000010 /* select even parity */ | |
| 103 | /* bits 0 - 2 are slave select */ | |
| 104 | ||
| 105 | #define b_repcnt b_bcount | |
| 106 | #define b_command b_resid |