projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| d62077b1 SL |
1 | /* cyreg.h 7.2 86/01/26 */ |
| 2 | ||
| 3 | /* | |
| 4 | * Tapemaster controller definitions. | |
| 5 | */ | |
| 6 | ||
| 7 | /* for byte swapping Multibus values */ | |
| 8 | #define htoms(x) (short)((((x)>>8)&0xff) | (((x)<<8)&0xff00)) | |
| 9 | ||
| 10 | #define b_repcnt b_bcount | |
| 11 | #define b_command b_resid | |
| 12 | ||
| 13 | /* | |
| 14 | * Channel control block definitions | |
| 15 | */ | |
| 16 | struct cyccb { | |
| 17 | char cbcw; /* channel control word */ | |
| 18 | char cbgate; /* tpb access gate */ | |
| 19 | short cbtpb[2]; /* first tape parameter block */ | |
| 20 | }; | |
| 21 | ||
| 22 | #define GATE_OPEN (char)(0x00) | |
| 23 | #define GATE_CLOSED (char)(0xff) | |
| 24 | ||
| 25 | #define CY_GO(addr) movob((addr), 0xff) /* channel attention */ | |
| 26 | #define CY_RESET(addr) movob((addr)+1, 0xff) /* software controller reset */ | |
| 27 | ||
| 28 | #define CBCW_IE 0x11 /* interrupt on cmd completion */ | |
| 29 | #define CBCW_CLRINT 0x09 /* clear active interrupt */ | |
| 30 | ||
| 31 | /* | |
| 32 | * Tape parameter block definitions | |
| 33 | */ | |
| 34 | struct cytpb { | |
| 35 | long tpcmd; /* command, see below */ | |
| 36 | short tpcontrol; /* control word */ | |
| 37 | short tpcount; /* return count */ | |
| 38 | short tpsize; /* buffer size */ | |
| 39 | short tprec; /* records/overrun */ | |
| 40 | short tpdata[2]; /* pointer to source/dest */ | |
| 41 | short tpstatus; /* status */ | |
| 42 | short tplink[2]; /* pointer to next parameter block */ | |
| 43 | }; | |
| 44 | ||
| 45 | /* control field bit definitions */ | |
| 46 | #define CYCW_UNIT (0x000c<<8) /* unit select mask, 2 bit field */ | |
| 47 | #define CYCW_IE (0x0020<<8) /* interrupt enable */ | |
| 48 | #define CYCW_LOCK (0x0080<<8) /* bus lock flag */ | |
| 49 | #define CYCW_REV (0x0400>>8) /* reverse flag */ | |
| 50 | #define CYCW_SPEED (0x0800>>8) /* speed/density */ | |
| 51 | #define CYCW_25IPS 0 | |
| 52 | #define CYCW_100IPS (0x0800>>8) | |
| 53 | #define CYCW_WIDTH (0x8000>>8) /* width */ | |
| 54 | #define CYCW_8BITS 0 | |
| 55 | #define CYCW_16BITS (0x8000>>8) | |
| 56 | ||
| 57 | #define CYCW_BITS "\20\3REV\005100IPS\00716BITS\16IE\20LOCK" | |
| 58 | ||
| 59 | /* | |
| 60 | * Controller commands | |
| 61 | */ | |
| 62 | ||
| 63 | /* control status/commands */ | |
| 64 | #define CY_CONFIG (0x00<<24) /* configure */ | |
| 65 | #define CY_NOP (0x20<<24) /* no operation */ | |
| 66 | #define CY_SENSE (0x28<<24) /* drive status */ | |
| 67 | #define CY_CLRINT (0x9c<<24) /* clear Multibus interrupt */ | |
| 68 | ||
| 69 | /* tape position commands */ | |
| 70 | #define CY_REW (0x34<<24) /* rewind tape */ | |
| 71 | #define CY_OFFL (0x38<<24) /* off_line and unload */ | |
| 72 | #define CY_WEOF (0x40<<24) /* write end-of-file mark */ | |
| 73 | #define CY_SFORW (0x70<<24) /* space record forward */ | |
| 74 | #define CY_SREV (CY_SFORW|CYCW_REV)/* space record backwords */ | |
| 75 | #define CY_ERASE (0x4c<<24) /* erase record */ | |
| 76 | ||
| 77 | /* data transfer commands */ | |
| 78 | #define CY_BRCOM (0x10<<24) /* read buffered */ | |
| 79 | #define CY_BWCOM (0x14<<24) /* write buffered */ | |
| 80 | #define CY_RCOM (0x2c<<24) /* read tape unbuffered */ | |
| 81 | #define CY_WCOM (0x30<<24) /* write tape unbuffered */ | |
| 82 | ||
| 83 | /* status field bit definitions */ | |
| 84 | #define CYS_WP (0x0002<<8) /* write protected, no write ring */ | |
| 85 | #define CYS_BSY (0x0004<<8) /* formatter busy */ | |
| 86 | #define CYS_RDY (0x0008<<8) /* drive ready */ | |
| 87 | #define CYS_EOT (0x0010<<8) /* end of tape detected */ | |
| 88 | #define CYS_BOT (0x0020<<8) /* tape is at load point */ | |
| 89 | #define CYS_OL (0x0040<<8) /* drive on_line */ | |
| 90 | #define CYS_FM (0x0080<<8) /* filemark detected */ | |
| 91 | #define CYS_ERR (0x1f00>>8) /* error value mask */ | |
| 92 | #define CYS_CR (0x2000>>8) /* controller executed retries */ | |
| 93 | #define CYS_CC (0x4000>>8) /* command completed successfully */ | |
| 94 | #define CYS_CE (0x8000>>8) /* command execution has begun */ | |
| 95 | ||
| 96 | #define CYS_BITS "\20\6CR\7CC\10CE\12WP\13BSY\14RDY\15EOT/BOT\16BOT\17OL\20FM" | |
| 97 | ||
| 98 | /* error codes for CYS_ERR */ | |
| 99 | #define CYER_TIMOUT 0x01 /* timed out data busy false */ | |
| 100 | #define CYER_TIMOUT1 0x02 /* data busy false,formatter,ready */ | |
| 101 | #define CYER_TIMOUT2 0x03 /* time out ready busy false */ | |
| 102 | #define CYER_TIMOUT3 0x04 /* time out ready busy true */ | |
| 103 | #define CYER_TIMOUT4 0x05 /* time out data busy true */ | |
| 104 | #define CYER_NXM 0x06 /* time out memory */ | |
| 105 | #define CYER_BLANK 0x07 /* blank tape */ | |
| 106 | #define CYER_DIAG 0x08 /* micro-diagnostic */ | |
| 107 | #define CYER_EOT 0x09 /* EOT forward, BOT rev. */ | |
| 108 | #define CYER_BOT 0x09 /* EOT forward, BOT rev. */ | |
| 109 | #define CYER_HERR 0x0a /* retry unsuccessful */ | |
| 110 | #define CYER_FIFO 0x0b /* FIFO over/under flow */ | |
| 111 | #define CYER_PARITY 0x0d /* drive to tapemaster parity error */ | |
| 112 | #define CYER_CKSUM 0x0e /* prom checksum */ | |
| 113 | #define CYER_STROBE 0x0f /* time out tape strobe */ | |
| 114 | #define CYER_NOTRDY 0x10 /* tape not ready */ | |
| 115 | #define CYER_PROT 0x11 /* write, no enable ring */ | |
| 116 | #define CYER_JUMPER 0x13 /* missing diagnostic jumper */ | |
| 117 | #define CYER_LINK 0x14 /* bad link, link inappropriate */ | |
| 118 | #define CYER_FM 0x15 /* unexpected filemark */ | |
| 119 | #define CYER_PARAM 0x16 /* bad parameter, byte count ? */ | |
| 120 | #define CYER_HDWERR 0x18 /* unidentified hardware error */ | |
| 121 | #define CYER_NOSTRM 0x19 /* streaming terminated */ | |
| 122 | ||
| 123 | #ifdef CYERROR | |
| 124 | char *cyerror[] = { | |
| 125 | "timeout", | |
| 126 | "timeout1", | |
| 127 | "timeout2", | |
| 128 | "timeout3", | |
| 129 | "timeout4", | |
| 130 | "non-existant memory", | |
| 131 | "blank tape", | |
| 132 | "micro-diagnostic", | |
| 133 | "eot/bot detected", | |
| 134 | "retry unsuccessful", | |
| 135 | "fifo over/under-flow", | |
| 136 | "#12", | |
| 137 | "drive to controller parity error", | |
| 138 | "prom checksum", | |
| 139 | "time out tape strobe (record length error)", | |
| 140 | "tape not ready", | |
| 141 | "write protected", | |
| 142 | "#18", | |
| 143 | "missing diagnostic jumper", | |
| 144 | "invalid link pointer", | |
| 145 | "unexpected file mark", | |
| 146 | "invalid byte count", | |
| 147 | "unidentified hardware error", | |
| 148 | "streaming terminated" | |
| 149 | }; | |
| 150 | #define NCYERROR (sizeof (cyerror) / sizeof (cyerror[0])) | |
| 151 | #endif | |
| 152 | ||
| 153 | /* | |
| 154 | * Masks defining hard and soft errors (must check against 1<<CYER_code). | |
| 155 | */ | |
| 156 | #define CYMASK(e) (1<<(CYER_/**/e)) | |
| 157 | #define CYER_HARD (CYMASK(TIMOUT)|CYMASK(TIMOUT1)|CYMASK(TIMOUT2)|\ | |
| 158 | CYMASK(TIMOUT3)|CYMASK(TIMOUT4)|CYMASK(NXM)|CYMASK(DIAG)|CYMASK(JUMPER)|\ | |
| 159 | CYMASK(STROBE)|CYMASK(PROT)|CYMASK(CKSUM)|CYMASK(HERR)|CYMASK(BLANK)) | |
| 160 | #define CYER_SOFT (CYMASK(FIFO)|CYMASK(NOTRDY)|CYMASK(PARITY)) | |
| 161 | ||
| 162 | /* | |
| 163 | * System configuration block | |
| 164 | */ | |
| 165 | struct cyscb { | |
| 166 | char csb_fixed; /* fixed value code (must be 3) */ | |
| 167 | char csb_unused; /* unused */ | |
| 168 | short csb_ccb[2]; /* pointer to channel control block */ | |
| 169 | }; | |
| 170 | ||
| 171 | /* | |
| 172 | * System configuration pointer | |
| 173 | */ | |
| 174 | struct cyscp { | |
| 175 | char csp_buswidth; /* system bus width */ | |
| 176 | #define CSP_16BITS 1 /* 16-bit system bus */ | |
| 177 | #define CSP_8BITS 0 /* 8-bit system bus */ | |
| 178 | char csp_unused; | |
| 179 | short csp_scb[2]; /* point to system config block */ | |
| 180 | }; |