/* $Header: /sys/linux-0.97/include/linux/RCS/tpqic02.h,v 0.3 1992/08/09 23:26:24 root Exp root $ * * Include file for QIC-02 driver for Linux. * * Copyright (c) 1992 by H. H. Bergman. All rights reserved. */ #ifndef _LINUX_TPQIC02_H #define _LINUX_TPQIC02_H #ifndef _CONFIG_H /* shouldn't this be _LINUX_CONFIG_H ? */ #include #endif #ifdef CONFIG_TAPE_QIC02 /* NOTE: TP_HAVE_DENS should distinguish between available densities * NOTE: Drive select is not implemented -- I have only one tape streamer. */ #if defined(TAPE_QIC02_WANGTEK5150) #define TAPE_QIC02_MT_TYPE MT_ISWT5150 #define TP_HAVE_DENS #define TP_HAVE_BSF /* nope */ #define TP_HAVE_FSR /* nope */ #define TP_HAVE_BSR /* nope */ #define TP_HAVE_EOD /* most of the time */ #define TP_HAVE_RAS1 #define TP_HAVE_RAS2 #elif defined(TAPE_QIC02_ALL_FEATURES) #define TP_HAVE_DENS /* can do set density */ #define TP_HAVE_BSF /* can search filemark backwards */ #define TP_HAVE_FSR /* can skip one block forwards */ #define TP_HAVE_BSR /* can skip one block backwards */ #define TP_HAVE_EOD /* can seek to end of recorded data */ #define TP_HAVE_RAS1 /* can run selftest 1 */ #define TP_HAVE_RAS2 /* can run selftest 2 */ /* These last two selftests shouldn't be used yet! */ #else #error No QIC-02 tape drive type defined! /* If your drive is not listed above, first try the 'ALL_FEATURES', * to see what commands are supported, then create your own entry in * the list above. You may want to mail it to me, so that I can include * it in the next release. */ #endif /* streamer tape block size (fixed) */ #define TAPE_BLKSIZE 512 #define NR_BLK_BUF 20 /* max 128 blocks */ #define TPQBUF_SIZE (TAPE_BLKSIZE*NR_BLK_BUF) /* port locations */ #define QIC_STAT_PORT TAPE_QIC02_PORT #define QIC_CTL_PORT TAPE_QIC02_PORT #define QIC_CMD_PORT (TAPE_QIC02_PORT+1) #define QIC_DATA_PORT (TAPE_QIC02_PORT+1) /* status register bits (Active LOW!) */ #define WTS_READY 0x01 #define WTS_EXCEPTION 0x02 #define WTS_STAT (WTS_READY|WTS_EXCEPTION) #define WTS_RESETMASK 0x07 #define WTS_RESETVAL (WTS_RESETMASK & ~WTS_EXCEPTION) /* controller register (QIC_CTL_PORT) bits */ #define WTC_ONLINE 0x01 #define WTC_RESET 0x02 #define WTC_REQUEST 0x04 #define WTC_CMDOFF 0xC0 #if TAPE_QIC02_DMA == 3 /* I don't get this -- can somebody explain this one to me? */ #define WTC_DMA 0x10 /* enable dma chan3 */ #elif TAPE_QIC02_DMA == 1 #define WTC_DMA 0x08 /* enable dma chan1 or chan2 */ #else #error "unsupported or incorrect DMA configuration" #endif /* Standard QIC-02 commands -- rev F. All QIC-02 drives must support these */ #define QCMD_SEL_1 0x01 /* select drive 1 */ #define QCMD_SEL_2 0x02 /* select drive 2 */ #define QCMD_SEL_3 0x04 /* select drive 3 */ #define QCMD_SEL_4 0x08 /* select drive 4 */ #define QCMD_REWIND 0x21 /* rewind tape*/ #define QCMD_ERASE 0x22 /* erase tape */ #define QCMD_RETEN 0x24 /* retension tape */ #define QCMD_WRT_DATA 0x40 /* write data */ #define QCMD_WRT_FM 0x60 /* write file mark */ #define QCMD_RD_DATA 0x80 /* read data */ #define QCMD_RD_FM 0xA0 /* read file mark (forward direction) */ #define QCMD_RD_STAT 0xC0 /* read status */ /* Other (optional/vendor unique) commands */ /* Density commands are only valid when TP_BOM is set! */ #define QCMD_DENS_11 0x26 /* QIC-11 */ #define QCMD_DENS_24 0x27 /* QIC-24: 9 track 60MB */ #define QCMD_DENS_120 0x28 /* QIC-120: 15 track 120MB */ #define QCMD_DENS_150 0x29 /* QIC-150: 18 track 150MB */ #define QCMD_DENS_300 0x2A /* QIC-300/QIC-2100 */ #define QCMD_DENS_600 0x2B /* QIC-600/QIC-2200 */ /* don't know about QIC-1000 and QIC-1350 */ #define QCMD_WRTNU_DATA 0x40 /* write data, no underruns, insert filler. */ #define QCMD_SPACE_FWD 0x81 /* skip next block */ #define QCMD_SPACE_BCK 0x89 /* move tape head one block back -- very useful! */ #define QCMD_RD_FM_BCK 0xA8 /* read filemark (backwards) */ #define QCMD_SEEK_EOD 0xA3 /* skip to EOD */ #define QCMD_RD_STAT_X1 0xC1 /* read extended status 1 */ #define QCMD_RD_STAT_X2 0xC4 /* read extended status 2 */ #define QCMD_RD_STAT_X3 0xE0 /* read extended status 3 */ #define QCMD_SELF_TST1 0xC2 /* run self test 1 (nondestructive) */ #define QCMD_SELF_TST2 0xCA /* run self test 2 (destructive) */ /* Minor device codes for tapes: * |7|6|5|4|3|2|1|0| * | \ | / \ | / |_____ 1=rewind on close, 0=no rewind on close * | \|/ |_________ Density: 000=none, 001=QIC-11, 010=24, 011=120, * | | 100=QIC-150, 101..111 reserved. * | |_______________ Reserved for unit numbers. * |___________________ Reserved for diagnostics during debugging. */ #define TP_REWCLOSE(d) ((MINOR(d)&0x01) == 1) /* rewind bit */ /* rewind is only done if data has been transfered */ #define TP_DENS(dev) ((MINOR(dev) >> 1) & 0x07) /* tape density */ #define TP_UNIT(dev) ((MINOR(dev) >> 4) & 0x07) /* unit number */ #define TP_DIAGS(dev) (MINOR(dev) & 0x80) /* print excessive diagnostics */ #ifndef __DEFONLY__ /* status codes returned by a WTS_RDSTAT call */ struct tpstatus { /* sizeof(short)==2), LSB first */ unsigned short exs; /* Drive exception flags */ unsigned short dec; /* data error count: nr of blocks rewritten */ unsigned short urc; /* underrun count: nr of times streaming was interrupted */ }; #define TPSTATSIZE sizeof(struct tpstatus) #endif /* __DEFONLY__ */ /* defines for tpstatus.exs -- taken from 386BSD wt driver */ #define TP_POR 0x100 /* Power on/reset occurred */ #define TP_RES1 0x200 /* Reserved for end of media */ #define TP_RES2 0x400 /* Reserved for bus parity */ #define TP_BOM 0x800 /* Beginning of media */ #define TP_MBD 0x1000 /* Marginal block detected */ #define TP_NDT 0x2000 /* No data detected */ #define TP_ILL 0x4000 /* Illegal command */ #define TP_ST1 0x8000 /* Status byte 1 bits */ #define TP_FIL 0x01 /* File mark detected */ #define TP_BNL 0x02 /* Bad block not located */ #define TP_UDA 0x04 /* Unrecoverable data error */ #define TP_EOM 0x08 /* End of media */ #define TP_WRP 0x10 /* Write protected cartridge */ #define TP_USL 0x20 /* Unselected drive */ #define TP_CNI 0x40 /* Cartridge not in place */ #define TP_ST0 0x80 /* Status byte 0 bits */ #define REPORT_ERR0 (TP_CNI|TP_USL|TP_WRP|TP_EOM|TP_UDA|TP_BNL|TP_FIL) #define REPORT_ERR1 (TP_ILL|TP_NDT|TP_MBD) #define TAPE_TIMEOUT 1000000 /* internal function return codes */ #define TE_OK 0 /* everything is fine */ #define TE_EX 1 /* exception detected */ #define TE_ERR 2 /* some error */ #define TE_NS 3 /* can't read status */ #define TE_TIM 4 /* timed out */ #define TE_DEAD 5 /* tape drive doesn't respond */ /* timeout timer values -- check these! */ #define TIM_S (2*HZ) /* 2 seconds (normal cmds) */ #define TIM_M (5*HZ) /* 5 seconds (write FM) */ #define TIM_R (8*60*HZ) /* 8 minutes (retensioning) */ #define TIM_F (2*3600*HZ) /* est. 1.2hr for full tape read/write+2 retens */ #define TIMERON(t) timer_table[TAPE_QIC02_TIMER].expires = jiffies + (t); \ timer_active |= (1<