| /* $Id: tpqic02.h,v 0.16 1993/04/19 23:15:39 root Exp root $ |
| * |
| * Include file for QIC-02 driver for Linux. |
| * |
| * Copyright (c) 1992 by H. H. Bergman. All rights reserved. |
| * |
| * ******* USER CONFIG SECTION BELOW ******* |
| */ |
| |
| #ifndef _LINUX_TPQIC02_H |
| #define _LINUX_TPQIC02_H |
| |
| #include <linux/config.h> |
| |
| #if CONFIG_TAPE_QIC02 |
| |
| /* need to have TAPE_QIC02_DRIVE and TAPE_QIC02_IFC expand to something */ |
| #include <linux/mtio.h> |
| |
| |
| /* make TAPE_QIC02_IFC expand to something */ |
| #define WANGTEK 1 /* don't know about Wangtek QIC-36 */ |
| #define EVEREX WANGTEK /* I heard *some* of these are identical */ |
| #define EVEREX_811V EVEREX /* With TEAC MT 2ST 45D */ |
| #define EVEREX_831V EVEREX |
| #define ARCHIVE 3 |
| #define ARCHIVE_SC400 ARCHIVE /* rumoured to be from the pre-SMD-age */ |
| #define ARCHIVE_SC402 ARCHIVE /* don't know much about SC400 */ |
| #define ARCHIVE_SC499 ARCHIVE /* SC402 and SC499R should be identical */ |
| |
| |
| /*********** START OF USER CONFIGURABLE SECTION ************/ |
| |
| /* Tape configuration: |
| * |
| * Tape drive configuration: (MT_IS* constants are defined in sys/mtio.h) |
| * |
| * TAPE_QIC02_DRIVE = MT_ISWT5150 |
| * - Wangtek 5150, format: up to QIC-150. |
| * TAPE_QIC02_DRIVE = MT_ISQIC02_ALL_FEATURES |
| * - Enables some optional QIC commands that some drives may lack. |
| * It is provided so you can check which are supported by your drive. |
| * Refer to tpqic02.h for others. |
| * |
| * Supported interface cards: TAPE_QIC02_IFC = |
| * WANGTEK, |
| * ARCHIVE_SC402, ARCHIVE_SC499. (both same programming interface) |
| * |
| * Make sure you have the I/O ports/DMA channels |
| * and IRQ stuff configured properly! |
| * NOTE: There may be other device drivers using the same major |
| * number. This must be avoided. Check for timer.h conflicts too. |
| */ |
| |
| #define TAPE_QIC02_DRIVE MT_ISQIC02_ALL_FEATURES /* drive type */ |
| /* #define TAPE_QIC02_DRIVE MT_ISWT5150 */ |
| #define TAPE_QIC02_IFC WANGTEK /* interface card type */ |
| /* #define TAPE_QIC02_IFC ARCHIVE */ |
| #define TAPE_QIC02_MAJOR 12 /* major device number. /dev/loop seems to use 12 as well :-( */ |
| #define TAPE_QIC02_PORT 0x300 /* controller port adress */ |
| #define TAPE_QIC02_IRQ 5 /* Muhammad, please don't use 2 here. -- Hennus */ |
| #define TAPE_QIC02_DMA 1 /* either 1 or 3, because 2 is used by the floppy */ |
| |
| |
| /************ END OF USER CONFIGURABLE SECTION *************/ |
| |
| |
| /* NOTE: TP_HAVE_DENS should distinguish between available densities |
| * NOTE: Drive select is not implemented -- I have only one tape streamer, |
| * so I'm unable and unmotivated to test and implement that. ;-) ;-) |
| */ |
| #if TAPE_QIC02_DRIVE == 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 TAPE_QIC02_DRIVE == MT_ISARCHIVESC499 /* Archive SC-499 QIC-36 controller */ |
| #define TP_HAVE_DENS /* can do set density (QIC-11 / QIC-24) */ |
| #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! */ |
| |
| #elif (TAPE_QIC02_DRIVE == MT_ISARCHIVE_2060L) || (TAPE_QIC02_DRIVE == MT_ISARCHIVE_2150L) |
| #define TP_HAVE_DENS /* can do set density (QIC-24 / QIC-120 / QIC-150) */ |
| #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_TELL /* can read current block address */ |
| #define TP_HAVE_SEEK /* can seek to block */ |
| #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! */ |
| |
| #elif TAPE_QIC02_DRIVE == MT_ISQIC02_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_SEEK /* seek to block address */ |
| #define TP_HAVE_TELL /* tell current block address */ |
| #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 |
| |
| |
| /* NR_BLK_BUF is a `tuneable parameter'. If you're really low on |
| * kernel space, you could decrease it to 1, or if you got a very |
| * slow machine, you could increase it up to 128 blocks. Less kernel |
| * buffer blocks result in more context-switching. |
| */ |
| #define NR_BLK_BUF 20 /* max 128 blocks */ |
| #define TAPE_BLKSIZE 512 /* streamer tape block size (fixed) */ |
| #define TPQBUF_SIZE (TAPE_BLKSIZE*NR_BLK_BUF) /* buffer size */ |
| |
| |
| #define BLOCKS_BEYOND_EW 2 /* nr of blocks after Early Warning hole */ |
| |
| #if TAPE_QIC02_IFC == WANGTEK |
| /* Wangtek interface card 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 QIC_STAT_READY 0x01 |
| # define QIC_STAT_EXCEPTION 0x02 |
| # define QIC_STAT_MASK (QIC_STAT_READY|QIC_STAT_EXCEPTION) |
| |
| # define QIC_STAT_RESETMASK 0x07 |
| # define QIC_STAT_RESETVAL (QIC_STAT_RESETMASK & ~QIC_STAT_EXCEPTION) |
| |
| /* controller register (QIC_CTL_PORT) bits */ |
| # define WT_CTL_ONLINE 0x01 |
| # define QIC_CTL_RESET 0x02 |
| # define QIC_CTL_REQUEST 0x04 |
| # define WT_CTL_CMDOFF 0xC0 |
| # if TAPE_QIC02_DMA == 3 /* dip-switches alone don't seem to cut it */ |
| # define WT_CTL_DMA 0x10 /* enable dma chan3 */ |
| # elif TAPE_QIC02_DMA == 1 |
| # define WT_CTL_DMA 0x08 /* enable dma chan1 or chan2 */ |
| # else |
| # error Unsupported or incorrect DMA configuration. |
| # endif |
| |
| #elif TAPE_QIC02_IFC == ARCHIVE |
| /* Archive interface card port locations */ |
| # define QIC_STAT_PORT (TAPE_QIC02_PORT+1) |
| # define QIC_CTL_PORT (TAPE_QIC02_PORT+1) |
| # define QIC_CMD_PORT (TAPE_QIC02_PORT) |
| # define QIC_DATA_PORT (TAPE_QIC02_PORT) |
| # define AR_START_DMA_PORT (TAPE_QIC02_PORT+2) |
| # define AR_RESET_DMA_PORT (TAPE_QIC02_PORT+3) |
| |
| /* STAT port bits */ |
| # define AR_STAT_IRQF 0x80 /* active high, interrupt request flag */ |
| # define QIC_STAT_READY 0x40 /* active low */ |
| # define QIC_STAT_EXCEPTION 0x20 /* active low */ |
| # define QIC_STAT_MASK (QIC_STAT_READY|QIC_STAT_EXCEPTION) |
| # define AR_STAT_DMADONE 0x10 /* active high, DMA done */ |
| # define AR_STAT_DIRC 0x08 /* active high, direction */ |
| |
| # define QIC_STAT_RESETMASK 0x70 /* check RDY,EXC,DMADONE */ |
| # define QIC_STAT_RESETVAL ((QIC_STAT_RESETMASK & ~AR_STAT_IRQF & ~QIC_STAT_EXCEPTION) | AR_STAT_DMADONE) |
| |
| /* CTL port bits */ |
| # define QIC_CTL_RESET 0x80 /* drive reset */ |
| # define QIC_CTL_REQUEST 0x40 /* notify of new command */ |
| # define AR_CTL_IEN 0x20 /* interrupt enable */ |
| # define AR_CTL_DNIEN 0x10 /* done-interrupt enable */ |
| /* Note: All of these bits are cleared automatically when writing to |
| * AR_RESET_DMA_PORT. So AR_CTL_IEN and AR_CTL_DNIEN must be |
| * reprogrammed before the write to AR_START_DMA_PORT. |
| */ |
| |
| # if TAPE_QIC02_DMA > 3 /* channel 2 is used by the floppy driver */ |
| # error DMA channels other than 1 and 3 are not supported. |
| # endif |
| |
| #else |
| # error No valid interface card specified! |
| #endif /* TAPE_QIC02_IFC */ |
| |
| /* 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) */ |
| |
| |
| |
| /* "Vendor Unique" codes */ |
| #if defined(MT_ISARCHIVESC499) || defined(MT_ISARCHIVE_2150L) |
| # define QCMDV_TELL_BLK 0xAE /* read current block address */ |
| # define QCMDV_SEEK_BLK 0xAD /* seek to specific block */ |
| # define SEEK_BUF_SIZE 3 /* address is 3 bytes */ |
| #endif |
| |
| |
| /* Optional, QFA (Quick File Access) commands. |
| * Not all drives support this, but those that do could use these commands |
| * to implement semi-non-sequential access. `mt fsf` would benefit from this. |
| * QFA divides the tape into 2 partitions, a data and a directory partition, |
| * causing some incompatibility problems wrt std QIC-02 data exchange. |
| * It would be useful to cache the directory info, but that might be tricky |
| * to do in kernel-space. [Size constraints.] |
| * Refer to QIC-02, appendix A for more information. |
| * I have no idea how other *nix variants implement QFA. |
| * I have no idea which drives support QFA and which don't. |
| */ |
| #define QFA_ENABLE 0x2D /* enter QFA mode, give @ BOT only */ |
| #define QFA_DATA 0x20 /* select data partition */ |
| #define QFA_DIR 0x23 /* select directory partition */ |
| #define QFA_RD_POS 0xCF /* read position+status bytes */ |
| #define QFA_SEEK_EOD 0xA1 /* seek EOD within current partition */ |
| #define QFA_SEEK_BLK 0xAF /* seek to a block within current partition */ |
| |
| |
| |
| /* 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 */ |
| |
| |
| /* 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/soft read errors */ |
| unsigned short urc; /* underrun count: nr of times streaming was interrupted */ |
| }; |
| #define TPSTATSIZE sizeof(struct tpstatus) |
| |
| |
| /* defines for tpstatus.exs -- taken from 386BSD wt driver */ |
| #define TP_POR 0x100 /* Power on or reset occurred */ |
| #define TP_EOR 0x200 /* REServed for end of RECORDED media */ |
| #define TP_PAR 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 flag */ |
| #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 flag */ |
| |
| #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|TP_PAR) |
| |
| |
| #define EXC_UNKNOWN 0 /* (extra) Unknown exception code */ |
| #define EXC_NCART 1 /* No cartridge */ |
| #define EXC_NDRV 2 /* No drive */ |
| #define EXC_WP 3 /* Write protected */ |
| #define EXC_EOM 4 /* EOM */ |
| #define EXC_RWA 5 /* read/write abort */ |
| #define EXC_XBAD 6 /* read error, bad block transfered */ |
| #define EXC_XFILLER 7 /* read error, filler block transfered */ |
| #define EXC_NDT 8 /* read error, no data */ |
| #define EXC_NDTEOM 9 /* read error, no data & EOM */ |
| #define EXC_NDTBOM 10 /* read error, no data & BOM */ |
| #define EXC_FM 11 /* Read a filemark */ |
| #define EXC_ILL 12 /* Illegal command */ |
| #define EXC_POR 13 /* Power on/reset */ |
| #define EXC_MARGINAL 14 /* Marginal block detected */ |
| #define EXC_EOR 15 /* (extra, for SEEKEOD) End Of Recorded data reached */ |
| #define EXC_BOM 16 /* (extra) BOM reached */ |
| |
| |
| #define TAPE_NOTIFY_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 */ |
| #define TE_END 6 /******** Archive hack *****/ |
| |
| /* timeout timer values -- check these! */ |
| #define TIM_S (4*HZ) /* 4 seconds (normal cmds) */ |
| #define TIM_M (30*HZ) /* 30 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<<TAPE_QIC02_TIMER) |
| #define TIMEROFF timer_active &= ~(1<<TAPE_QIC02_TIMER) |
| #define TIMERCONT timer_active |= (1<<TAPE_QIC02_TIMER) |
| |
| |
| typedef char flag; |
| #define NO 0 /* NO must be 0 */ |
| #define YES 1 /* YES must be != 0 */ |
| |
| |
| #ifdef TDEBUG |
| # define TPQDEB(s) s |
| # define TPQPUTS(s) tpqputs(s) |
| #else |
| # define TPQDEB(s) |
| # define TPQPUTS(s) |
| #endif |
| |
| |
| |
| extern long tape_qic02_init(long); /* for kernel/mem.c */ |
| |
| |
| #endif /* CONFIG_TAPE_QIC02 */ |
| |
| #endif /* _LINUX_TPQIC02_H */ |