diff options
Diffstat (limited to 'sys/i386/isa/ft.c')
| -rw-r--r-- | sys/i386/isa/ft.c | 2184 |
1 files changed, 2184 insertions, 0 deletions
diff --git a/sys/i386/isa/ft.c b/sys/i386/isa/ft.c new file mode 100644 index 0000000..7102c49 --- /dev/null +++ b/sys/i386/isa/ft.c @@ -0,0 +1,2184 @@ +/* + * Copyright (c) 1993 Steve Gerakines + * + * This is freely redistributable software. You may do anything you wish with + * it, so long as the above notice stays intact. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * ft.c - QIC-40/80 floppy tape driver $Id: ft.c,v 1.9 1994/08/21 20:16:14 paul + * Exp $ + * + * + * 01/26/94 v0.3b - Jim Babb Got rid of the hard coded device selection. Moved + * (some of) the static variables into a structure for support of multiple + * devices. ( still has a way to go for 2 controllers - but closer ) Changed + * the interface with fd.c so we no longer 'steal' it's driver routine + * vectors. + * + * 10/30/93 v0.3 Fixed a couple more bugs. Reading was sometimes looping when + * an an error such as address-mark-missing was encountered. Both reading + * and writing was having more backup-and-retries than was necessary. Added + * support to get hardware info. Updated for use with FreeBSD. + * + * 09/15/93 v0.2 pl01 Fixed a bunch of bugs: extra isa_dmadone() in + * async_write() (shouldn't matter), fixed double buffering in async_req(), + * changed tape_end() in set_fdcmode() to reduce unexpected interrupts, + * changed end of track processing in async_req(), protected more of + * ftreq_rw() with an splbio(). Changed some of the ftreq_*() functions so + * that they wait for inactivity and then go, instead of aborting + * immediately. + * + * 08/07/93 v0.2 release Shifted from ftstrat to ioctl support for I/O. + * Streaming is now much more reliable. Added internal support for error + * correction, QIC-40, and variable length tapes. Random access of segments + * greatly improved. Formatting and verification support is close but still + * incomplete. + * + * 06/03/93 v0.1 Alpha release Hopefully the last re-write. Many bugs fixed, + * many remain. + * + * $Id: ft.c,v 1.9 1994/08/21 20:16:14 paul Exp $ + */ + +#include "ft.h" +#if NFT > 0 +#include "fd.h" + +#include <sys/param.h> +#include <sys/dkbad.h> +#include <sys/systm.h> +#include <sys/conf.h> +#include <sys/file.h> +#include <sys/ioctl.h> +#include <sys/malloc.h> +#include <sys/buf.h> +#include <sys/uio.h> +#include <sys/ftape.h> +#include <machine/pio.h> +#include <i386/isa/isa_device.h> +#include <i386/isa/fdreg.h> +#include <i386/isa/fdc.h> +#include <i386/isa/icu.h> +#include <i386/isa/rtc.h> +#include <i386/isa/ftreg.h> + +/* Enable or disable debugging messages. */ +#define FTDBGALL 0 /* everything */ +/* #define DPRT(a) printf a */ +#define DPRT(a) + +/* Constants private to the driver */ +#define FTPRI (PRIBIO)/* sleep priority */ + +/* The following items are needed from the fd driver. */ +extern int in_fdc(int); /* read fdc registers */ +extern int out_fdc(int, int); /* write fdc registers */ + +extern int hz; /* system clock rate */ + +/* Type of tape attached */ +/* use numbers that don't interfere with the possible floppy types */ +#define NO_TYPE 0 /* (same as NO_TYPE in fd.c) */ +/* F_TAPE_TYPE must match value in fd.c */ +#define F_TAPE_TYPE 0x020 /* bit for ft->types to indicate tape */ +#define FT_MOUNTAIN (F_TAPE_TYPE | 1) +#define FT_COLORADO (F_TAPE_TYPE | 2) + + +/* Mode FDC is currently in: tape or disk */ +enum { + FDC_TAPE_MODE, FDC_DISK_MODE +}; + +/* Command we are awaiting completion of */ +enum { + FTCMD_NONE, FTCMD_RESET, FTCMD_RECAL, FTCMD_SEEK, FTCMD_READID +}; + +/* Tape interrupt status of current request */ +enum { + FTSTS_NONE, FTSTS_SNOOZE, FTSTS_INTERRUPT, FTSTS_TIMEOUT +}; + +/* Tape I/O status */ +enum { + FTIO_READY, /* No I/O activity */ + FTIO_READING, /* Currently reading blocks */ + FTIO_RDAHEAD, /* Currently reading ahead */ + FTIO_WRITING /* Buffers are being written */ +}; + +/* Current tape mode */ +enum { + FTM_PRIMARY, /* Primary mode */ + FTM_VERIFY, /* Verify mode */ + FTM_FORMAT, /* Format mode */ + FTM_DIAG1, /* Diagnostic mode 1 */ + FTM_DIAG2 /* Diagnostic mode 2 */ +}; + +/* Tape geometries table */ +QIC_Geom ftgtbl[] = { + {0, 0, "Unformatted", "Unknown", 0, 0, 0, 0, 0}, /* XXX */ + {1, 1, "QIC-40", "205/550", 20, 68, 2176, 128, 21760}, + {1, 2, "QIC-40", "307.5/550", 20, 102, 3264, 128, 32640}, + {1, 3, "QIC-40", "295/900", 0, 0, 0, 0, 0}, /* ??? */ + {1, 4, "QIC-40", "1100/550", 20, 365, 11680, 128, 32512}, + {1, 5, "QIC-40", "1100/900", 0, 0, 0, 0, 0}, /* ??? */ + {2, 1, "QIC-80", "205/550", 28, 100, 3200, 128, 19200}, + {2, 2, "QIC-80", "307.5/550", 28, 150, 4800, 128, 19200}, + {2, 3, "QIC-80", "295/900", 0, 0, 0, 0, 0}, /* ??? */ + {2, 4, "QIC-80", "1100/550", 28, 537, 17184, 128, 32512}, + {2, 5, "QIC-80", "1100/900", 0, 0, 0, 0, 0}, /* ??? */ + {3, 1, "QIC-500", "205/550", 0, 0, 0, 0, 0}, /* ??? */ + {3, 2, "QIC-500", "307.5/550", 0, 0, 0, 0, 0}, /* ??? */ + {3, 3, "QIC-500", "295/900", 0, 0, 0, 0, 0}, /* ??? */ + {3, 4, "QIC-500", "1100/550", 0, 0, 0, 0, 0}, /* ??? */ + {3, 5, "QIC-500", "1100/900", 0, 0, 0, 0, 0} /* ??? */ +}; +#define NGEOM (sizeof(ftgtbl) / sizeof(QIC_Geom)) + +QIC_Geom *ftg = NULL; /* Current tape's geometry */ + +/* + * things relating to asynchronous commands + */ +static int astk_depth; /* async_cmd stack depth */ +static int awr_state; /* state of async write */ +static int ard_state; /* state of async read */ +static int arq_state; /* state of async request */ +static int async_retries; /* retries, one per invocation */ +static int async_func; /* function to perform */ +static int async_state; /* state current function is at */ +static int async_arg[5]; /* up to 5 arguments for async cmds */ +static int async_ret; /* return value */ + +/* List of valid async (interrupt driven) tape support functions. */ +enum { + ACMD_NONE, /* no command */ + ACMD_SEEK, /* command seek */ + ACMD_STATUS, /* report status */ + ACMD_STATE, /* wait for state bits to be true */ + ACMD_SEEKSTS, /* perform command and wait for status */ + ACMD_READID, /* read id */ + ACMD_RUNBLK /* ready tape for I/O on the given block */ +}; + +/* Call another asyncronous command from within async_cmd(). */ +#define CALL_ACMD(r,f,a,b,c,d,e) \ + astk[astk_depth].over_retries = async_retries; \ + astk[astk_depth].over_func = async_func; \ + astk[astk_depth].over_state = (r); \ + for (i = 0; i < 5; i++) \ + astk[astk_depth].over_arg[i] = async_arg[i]; \ + async_func = (f); async_state = 0; async_retries = 0; \ + async_arg[0]=(a); async_arg[1]=(b); async_arg[2]=(c); \ + async_arg[3]=(d); async_arg[4]=(e); \ + astk_depth++; \ + goto restate + +/* Perform an asyncronous command from outside async_cmd(). */ +#define ACMD_FUNC(r,f,a,b,c,d,e) over_async = (r); astk_depth = 0; \ + async_func = (f); async_state = 0; async_retries = 0; \ + async_arg[0]=(a); async_arg[1]=(b); async_arg[2]=(c); \ + async_arg[3]=(d); async_arg[4]=(e); \ + async_cmd(ftu); \ + return + +/* Various wait channels */ +static struct { + int buff_avail; + int iosts_change; + int long_delay; + int intr_wait; +} ftsem; + +/***********************************************************************\ +* Per controller structure. * +\***********************************************************************/ +extern struct fdc_data fdc_data[NFDC]; + +/***********************************************************************\ +* Per tape drive structure. * +\***********************************************************************/ +struct ft_data { + struct fdc_data *fdc; /* pointer to controller structure */ + int ftsu; /* this units number on this controller */ + int type; /* Drive type (Mountain, Colorado) */ + /* QIC_Geom *ftg; *//* pointer to Current tape's geometry */ + int flags; + int cmd_wait; /* Command we are awaiting completion + * of */ + int sts_wait; /* Tape interrupt status of current + * request */ + int io_sts; /* Tape I/O status */ + int mode; + int pcn; /* present cylinder number */ + int attaching; /* true when ft is attaching */ + unsigned char *xptr; /* pointer to buffer blk to xfer */ + int xcnt; /* transfer count */ + int xblk; /* block number to transfer */ + SegReq *curseg; /* Current segment to do I/O on */ + SegReq *bufseg; /* Buffered segment to r/w ahead */ + /* the next 3 should be defines in 'flags' */ + int active; /* TRUE if transfer is active */ + int rdonly; /* TRUE if tape is read-only */ + int newcart;/* TRUE if new cartridge detected */ + int laststs;/* last reported status code */ + int lastcfg;/* last reported QIC config */ + int lasterr;/* last QIC error code */ + int lastpos;/* last known segment number */ + int moving; /* TRUE if tape is moving */ + int rid[7]; /* read_id return values */ + +} ft_data[NFT]; + +/***********************************************************************\ +* Throughout this file the following conventions will be used: * +* ft is a pointer to the ft_data struct for the drive in question * +* fdc is a pointer to the fdc_data struct for the controller * +* ftu is the tape drive unit number * +* fdcu is the floppy controller unit number * +* ftsu is the tape drive unit number on that controller. (sub-unit) * +\***********************************************************************/ + + +typedef int ftu_t; +typedef int ftsu_t; +typedef struct ft_data *ft_p; + +#define id_physid id_scsiid /* this biotab field doubles as a field */ +/* for the physical unit number on the controller */ + +int ftopen(dev_t, int); +int ftclose(dev_t, int); +void ftstrategy(struct buf *); +int ftioctl(dev_t, int, caddr_t, int, struct proc *); +int ftdump(dev_t); +int ftsize(dev_t); +static timeout_t ft_timeout; +void async_cmd(ftu_t); +void async_req(ftu_t, int); +void async_read(ftu_t, int); +void async_write(ftu_t, int); +void tape_start(ftu_t); +void tape_end(ftu_t); +void tape_inactive(ftu_t); + + + + + +/* + * Probe/attach floppy tapes. + */ +int +ftattach(isadev, fdup) + struct isa_device *isadev, *fdup; +{ + fdcu_t fdcu = isadev->id_unit; /* fdc active unit */ + fdc_p fdc = fdc_data + fdcu; /* pointer to controller + * structure */ + ftu_t ftu = fdup->id_unit; + ft_p ft; + ftsu_t ftsu = fdup->id_physid; + + if (ftu >= NFT) + return 0; + ft = &ft_data[ftu]; + /* Probe for tape */ + ft->attaching = 1; + ft->type = NO_TYPE; + ft->fdc = fdc; + ft->ftsu = ftsu; + + tape_start(ftu); /* ready controller for tape */ + tape_cmd(ftu, QC_COL_ENABLE1); + tape_cmd(ftu, QC_COL_ENABLE2); + if (tape_status(ftu) >= 0) { + ft->type = FT_COLORADO; + fdc->flags |= FDC_HASFTAPE; + printf(" [%d: ft%d: Colorado tape]", + fdup->id_physid, fdup->id_unit); + tape_cmd(ftu, QC_COL_DISABLE); + goto out; + } + tape_start(ftu); /* ready controller for tape */ + tape_cmd(ftu, QC_MTN_ENABLE1); + tape_cmd(ftu, QC_MTN_ENABLE2); + if (tape_status(ftu) >= 0) { + ft->type = FT_MOUNTAIN; + fdc->flags |= FDC_HASFTAPE; + printf(" [%d: ft%d: Mountain tape]", + fdup->id_physid, fdup->id_unit); + tape_cmd(ftu, QC_MTN_DISABLE); + goto out; + } +out: + tape_end(ftu); + ft->attaching = 0; + return (ft->type); +} + + +/* + * Perform common commands asynchronously. + */ +void +async_cmd(ftu_t ftu) +{ + ft_p ft = &ft_data[ftu]; + fdcu_t fdcu = ft->fdc->fdcu; + int cmd, i, st0, st3, pcn; + static int bitn, retval, retpos, nbits, newcn; + static struct { + int over_func; + int over_state; + int over_retries; + int over_arg[5]; + } astk[15]; + static int wanttrk, wantblk, wantdir; + static int curpos, curtrk, curblk, curdir, curdiff; + static int errcnt = 0; + +restate: +#if FTDBGALL + DPRT(("async_cmd state: func: %d state: %d\n", async_func, async_state)); +#endif + switch (async_func) { + case ACMD_SEEK: + /* + * Arguments: 0 - command to perform + */ + switch (async_state) { + case 0: + cmd = async_arg[0]; +#if FTDBGALL + DPRT(("===>async_seek cmd = %d\n", cmd)); +#endif + newcn = (cmd <= ft->pcn) ? ft->pcn - cmd : ft->pcn + cmd; + async_state = 1; + i = 0; + if (out_fdc(fdcu, NE7CMD_SEEK) < 0) + i = 1; + if (!i && out_fdc(fdcu, 0x00) < 0) + i = 1; + if (!i && out_fdc(fdcu, newcn) < 0) + i = 1; + if (i) { + if (++async_retries >= 10) { + DPRT(("ft%d: async_cmd command seek failed!!\n", ftu)); + goto complete; + } + DPRT(("ft%d: async_cmd command seek retry...\n", ftu)); + async_state = 0; + goto restate; + } + break; + case 1: + out_fdc(fdcu, NE7CMD_SENSEI); + st0 = in_fdc(fdcu); + pcn = in_fdc(fdcu); + if (st0 < 0 || pcn < 0 || newcn != pcn) { + if (++async_retries >= 10) { + DPRT(("ft%d: async_cmd seek retries exceeded\n", ftu)); + goto complete; + } + DPRT(("ft%d: async_cmd command bad st0=$%02x pcn=$%02x\n", + ftu, st0, pcn)); + async_state = 0; + timeout(ft_timeout, (caddr_t) ftu, hz / 10); + break; + } + if (st0 & 0x20) { /* seek done */ + ft->pcn = pcn; + } +#if FTDBGALL + else + DPRT(("ft%d: async_seek error st0 = $%02x pcn = %d\n", + ftu, st0, pcn)); +#endif + if (async_arg[1]) + goto complete; + async_state = 2; + timeout(ft_timeout, (caddr_t) ftu, hz / 50); + break; + case 2: + goto complete; + /* NOTREACHED */ + } + break; + + case ACMD_STATUS: + /* + * Arguments: 0 - command to issue report from 1 - number of + * bits modifies: bitn, retval, st3 + */ + switch (async_state) { + case 0: + bitn = 0; + retval = 0; + cmd = async_arg[0]; + nbits = async_arg[1]; + DPRT(("async_status got cmd = %d nbits = %d\n", cmd, nbits)); + CALL_ACMD(5, ACMD_SEEK, QC_NEXTBIT, 0, 0, 0, 0); + /* NOTREACHED */ + case 1: + out_fdc(fdcu, NE7CMD_SENSED); + out_fdc(fdcu, 0x00); + st3 = in_fdc(fdcu); + if (st3 < 0) { + DPRT(("ft%d: async_status timed out on bit %d r=$%02x\n", + ftu, bitn, retval)); + async_ret = -1; + goto complete; + } + if ((st3 & 0x10) != 0) + retval |= (1 << bitn); + bitn++; + if (bitn >= (nbits + 2)) { + if ((retval & 1) && (retval & (1 << (nbits + 1)))) { + async_ret = (retval & ~(1 << (nbits + 1))) >> 1; + if (async_arg[0] == QC_STATUS && async_arg[2] == 0 && + (async_ret & (QS_ERROR | QS_NEWCART))) { + async_state = 2; + goto restate; + } + DPRT(("async status got $%04x ($%04x)\n", async_ret, retval)); + } else { + DPRT(("ft%d: async_status failed: retval=$%04x nbits=%d\n", + ftu, retval, nbits)); + async_ret = -2; + } + goto complete; + } + CALL_ACMD(1, ACMD_SEEK, QC_NEXTBIT, 0, 0, 0, 0); + /* NOTREACHED */ + case 2: + if (async_ret & QS_NEWCART) + ft->newcart = 1; + CALL_ACMD(3, ACMD_STATUS, QC_ERRCODE, 16, 1, 0, 0); + case 3: + ft->lasterr = async_ret; + if ((ft->lasterr & QS_NEWCART) == 0 && ft->lasterr) { + DPRT(("ft%d: QIC error %d occurred on cmd %d\n", + ftu, ft->lasterr & 0xff, ft->lasterr >> 8)); + } + cmd = async_arg[0]; + nbits = async_arg[1]; + CALL_ACMD(4, ACMD_STATUS, QC_STATUS, 8, 1, 0, 0); + case 4: + goto complete; + case 5: + CALL_ACMD(6, ACMD_SEEK, QC_NEXTBIT, 0, 0, 0, 0); + case 6: + CALL_ACMD(7, ACMD_SEEK, QC_NEXTBIT, 0, 0, 0, 0); + case 7: + CALL_ACMD(8, ACMD_SEEK, QC_NEXTBIT, 0, 0, 0, 0); + case 8: + cmd = async_arg[0]; + CALL_ACMD(1, ACMD_SEEK, cmd, 0, 0, 0, 0); + } + break; + + case ACMD_STATE: + /* + * Arguments: 0 - status bits to check + */ + switch (async_state) { + case 0: + CALL_ACMD(1, ACMD_STATUS, QC_STATUS, 8, 0, 0, 0); + case 1: + if ((async_ret & async_arg[0]) != 0) + goto complete; + async_state = 0; + if (++async_retries == 360) { /* 90 secs. */ + DPRT(("ft%d: acmd_state exceeded retry count\n", ftu)); + goto complete; + } + timeout(ft_timeout, (caddr_t) ftu, hz / 4); + break; + } + break; + + case ACMD_SEEKSTS: + /* + * Arguments: 0 - command to perform 1 - status bits to check + * 2 - (optional) seconds to wait until completion + */ + switch (async_state) { + case 0: + cmd = async_arg[0]; + async_retries = (async_arg[2]) ? (async_arg[2] * 4) : 10; + CALL_ACMD(1, ACMD_SEEK, cmd, 0, 0, 0, 0); + case 1: + CALL_ACMD(2, ACMD_STATUS, QC_STATUS, 8, 0, 0, 0); + case 2: + if ((async_ret & async_arg[1]) != 0) + goto complete; + if (--async_retries == 0) { + DPRT(("ft%d: acmd_seeksts retries exceeded\n", ftu)); + goto complete; + } + async_state = 1; + timeout(ft_timeout, (caddr_t) ftu, hz / 4); + break; + } + break; + + case ACMD_READID: + /* + * Arguments: (none) + */ + switch (async_state) { + case 0: + if (!ft->moving) { + CALL_ACMD(4, ACMD_SEEKSTS, QC_STOP, QS_READY, 0, 0, 0); + /* NOTREACHED */ + } + async_state = 1; + out_fdc(fdcu, 0x4a); /* READ_ID */ + out_fdc(fdcu, 0); + break; + case 1: + for (i = 0; i < 7; i++) + ft->rid[i] = in_fdc(fdcu); + async_ret = (ft->rid[3] * ftg->g_fdtrk) + + (ft->rid[4] * ftg->g_fdside) + ft->rid[5] - 1; + DPRT(("readid st0:%02x st1:%02x st2:%02x c:%d h:%d s:%d pos:%d\n", + ft->rid[0], ft->rid[1], ft->rid[2], ft->rid[3], + ft->rid[4], ft->rid[5], async_ret)); + if ((ft->rid[0] & 0xc0) == 0x40) { + if (++errcnt >= 10) { + DPRT(("ft%d: acmd_readid errcnt exceeded\n", fdcu)); + async_ret = ft->lastpos; + errcnt = 0; + goto complete; + } + if (errcnt > 2) { + ft->moving = 0; + CALL_ACMD(4, ACMD_SEEKSTS, QC_STOP, QS_READY, 0, 0, 0); + } + DPRT(("readid retry...\n")); + async_state = 0; + goto restate; + } + if ((async_ret % ftg->g_blktrk) == (ftg->g_blktrk - 1)) { + DPRT(("acmd_readid detected last block on track\n")); + retpos = async_ret; + CALL_ACMD(2, ACMD_STATE, QS_BOT | QS_EOT, 0, 0, 0, 0); + /* NOTREACHED */ + } + ft->lastpos = async_ret; + errcnt = 0; + goto complete; + /* NOTREACHED */ + case 2: + CALL_ACMD(3, ACMD_STATE, QS_READY, 0, 0, 0, 0); + case 3: + ft->moving = 0; + async_ret = retpos + 1; + goto complete; + case 4: + CALL_ACMD(5, ACMD_SEEK, QC_FORWARD, 0, 0, 0, 0); + case 5: + ft->moving = 1; + async_state = 0; + timeout(ft_timeout, (caddr_t) ftu, hz / 10); /* XXX */ + break; + } + break; + + case ACMD_RUNBLK: + /* + * Arguments: 0 - block number I/O will be performed on + * + * modifies: curpos + */ + switch (async_state) { + case 0: + wanttrk = async_arg[0] / ftg->g_blktrk; + wantblk = async_arg[0] % ftg->g_blktrk; + wantdir = wanttrk & 1; + ft->moving = 0; + CALL_ACMD(1, ACMD_SEEKSTS, QC_STOP, QS_READY, 0, 0, 0); + case 1: + curtrk = wanttrk; + curdir = curtrk & 1; + DPRT(("Changing to track %d\n", wanttrk)); + CALL_ACMD(2, ACMD_SEEK, QC_SEEKTRACK, 0, 0, 0, 0); + case 2: + cmd = wanttrk + 2; + CALL_ACMD(3, ACMD_SEEKSTS, cmd, QS_READY, 0, 0, 0); + case 3: + CALL_ACMD(4, ACMD_STATUS, QC_STATUS, 8, 0, 0, 0); + case 4: + ft->laststs = async_ret; + if (wantblk == 0) { + curblk = 0; + cmd = (wantdir) ? QC_SEEKEND : QC_SEEKSTART; + CALL_ACMD(6, ACMD_SEEKSTS, cmd, QS_READY, 90, 0, 0); + } + if (ft->laststs & QS_BOT) { + DPRT(("Tape is at BOT\n")); + curblk = (wantdir) ? 4800 : 0; + async_state = 6; + goto restate; + } + if (ft->laststs & QS_EOT) { + DPRT(("Tape is at EOT\n")); + curblk = (wantdir) ? 0 : 4800; + async_state = 6; + goto restate; + } + CALL_ACMD(5, ACMD_READID, 0, 0, 0, 0, 0); + case 5: + curtrk = (async_ret + 1) / ftg->g_blktrk; + curblk = (async_ret + 1) % ftg->g_blktrk; + DPRT(("gotid: curtrk=%d wanttrk=%d curblk=%d wantblk=%d\n", + curtrk, wanttrk, curblk, wantblk)); + if (curtrk != wanttrk) { /* oops! */ + DPRT(("oops!! wrong track!\n")); + CALL_ACMD(1, ACMD_SEEKSTS, QC_STOP, QS_READY, 0, 0, 0); + } + async_state = 6; + goto restate; + case 6: + DPRT(("curtrk = %d nextblk = %d\n", curtrk, curblk)); + if (curblk == wantblk) { + ft->lastpos = curblk - 1; + async_ret = ft->lastpos; + if (ft->moving) + goto complete; + CALL_ACMD(7, ACMD_STATE, QS_READY, 0, 0, 0, 0); + } + if (curblk > wantblk) { /* passed it */ + ft->moving = 0; + CALL_ACMD(10, ACMD_SEEKSTS, QC_STOP, QS_READY, 0, 0, 0); + } + if ((wantblk - curblk) <= 96) { /* approaching it */ + CALL_ACMD(5, ACMD_READID, 0, 0, 0, 0, 0); + } + /* way up ahead */ + ft->moving = 0; + CALL_ACMD(14, ACMD_SEEKSTS, QC_STOP, QS_READY, 0, 0, 0); + break; + case 7: + ft->moving = 1; + CALL_ACMD(8, ACMD_SEEK, QC_FORWARD, 0, 0, 0, 0); + break; + case 8: + async_state = 9; + timeout(ft_timeout, (caddr_t) ftu, hz / 10); /* XXX */ + break; + case 9: + goto complete; + case 10: + curdiff = ((curblk - wantblk) / QCV_BLKSEG) + 2; + if (curdiff >= ftg->g_segtrk) + curdiff = ftg->g_segtrk - 1; + DPRT(("pos %d past %d, reverse %d\n", curblk, wantblk, curdiff)); + CALL_ACMD(11, ACMD_SEEK, QC_SEEKREV, 0, 0, 0, 0); + case 11: + DPRT(("reverse 1 done\n")); + CALL_ACMD(12, ACMD_SEEK, (curdiff & 0xf) + 2, 0, 0, 0, 0); + case 12: + DPRT(("reverse 2 done\n")); + CALL_ACMD(13, ACMD_SEEKSTS, ((curdiff >> 4) & 0xf) + 2, QS_READY, 90, 0, 0); + case 13: + CALL_ACMD(5, ACMD_READID, 0, 0, 0, 0, 0); + case 14: + curdiff = ((wantblk - curblk) / QCV_BLKSEG) - 2; + if (curdiff < 0) + curdiff = 0; + DPRT(("pos %d before %d, forward %d\n", curblk, wantblk, curdiff)); + CALL_ACMD(15, ACMD_SEEK, QC_SEEKFWD, 0, 0, 0, 0); + case 15: + DPRT(("forward 1 done\n")); + CALL_ACMD(16, ACMD_SEEK, (curdiff & 0xf) + 2, 0, 0, 0, 0); + case 16: + DPRT(("forward 2 done\n")); + CALL_ACMD(13, ACMD_SEEKSTS, ((curdiff >> 4) & 0xf) + 2, QS_READY, 90, 0, 0); + } + break; + } + + return; + +complete: + if (astk_depth) { + astk_depth--; + async_retries = astk[astk_depth].over_retries; + async_func = astk[astk_depth].over_func; + async_state = astk[astk_depth].over_state; + for (i = 0; i < 5; i++) + async_arg[i] = astk[astk_depth].over_arg[i]; + goto restate; + } + async_func = ACMD_NONE; + async_state = 0; + switch (ft->io_sts) { + case FTIO_READY: + async_req(ftu, 2); + break; + case FTIO_READING: + async_read(ftu, 2); + break; + case FTIO_WRITING: + async_write(ftu, 2); + break; + default: + DPRT(("ft%d: bad async_cmd ending I/O state!\n", ftu)); + break; + } +} + + +/* + * Entry point for the async request processor. + */ +void +async_req(ftu_t ftu, int from) +{ + ft_p ft = &ft_data[ftu]; + SegReq *sp; + static int over_async, lastreq, domore; + int cmd; + + if (from == 2) + arq_state = over_async; + +restate: + switch (arq_state) { + case 0: /* Process segment */ + ft->io_sts = ft->curseg->reqtype; + if (ft->io_sts == FTIO_WRITING) + async_write(ftu, from); + else + async_read(ftu, from); + if (ft->io_sts != FTIO_READY) + return; + + /* Swap buffered and current segment */ + lastreq = ft->curseg->reqtype; + ft->curseg->reqtype = FTIO_READY; + sp = ft->curseg; + ft->curseg = ft->bufseg; + ft->bufseg = sp; + + wakeup((caddr_t) & ftsem.buff_avail); + + /* Detect end of track */ + if (((ft->xblk / QCV_BLKSEG) % ftg->g_segtrk) == 0) { + domore = (ft->curseg->reqtype != FTIO_READY); + ACMD_FUNC(2, ACMD_STATE, QS_BOT | QS_EOT, 0, 0, 0, 0); + } + arq_state = 1; + goto restate; + + case 1: /* Next request */ + if (ft->curseg->reqtype != FTIO_READY) { + ft->curseg->reqcrc = 0; + arq_state = ard_state = awr_state = 0; + ft->xblk = ft->curseg->reqblk; + ft->xcnt = 0; + ft->xptr = ft->curseg->buff; + DPRT(("I/O reqblk = %d\n", ft->curseg->reqblk)); + goto restate; + } + if (lastreq == FTIO_READING) { + ft->curseg->reqtype = FTIO_RDAHEAD; + ft->curseg->reqblk = ft->xblk; + ft->curseg->reqcrc = 0; + ft->curseg->reqcan = 0; + bzero(ft->curseg->buff, QCV_SEGSIZE); + arq_state = ard_state = awr_state = 0; + ft->xblk = ft->curseg->reqblk; + ft->xcnt = 0; + ft->xptr = ft->curseg->buff; + DPRT(("Processing readahead reqblk = %d\n", ft->curseg->reqblk)); + goto restate; + } + if (ft->moving) { + DPRT(("No more I/O.. Stopping.\n")); + ACMD_FUNC(7, ACMD_SEEKSTS, QC_STOP, QS_READY, 0, 0, 0); + break; + } + arq_state = 7; + goto restate; + + case 2: /* End of track */ + ft->moving = 0; + ACMD_FUNC(3, ACMD_STATE, QS_READY, 0, 0, 0, 0); + break; + + case 3: + DPRT(("async_req seek head to track %d\n", ft->xblk / ftg->g_blktrk)); + ACMD_FUNC(4, ACMD_SEEK, QC_SEEKTRACK, 0, 0, 0, 0); + break; + + case 4: + cmd = (ft->xblk / ftg->g_blktrk) + 2; + if (domore) { + ACMD_FUNC(5, ACMD_SEEKSTS, cmd, QS_READY, 0, 0, 0); + } else { + ACMD_FUNC(7, ACMD_SEEKSTS, cmd, QS_READY, 0, 0, 0); + } + break; + + case 5: + ft->moving = 1; + ACMD_FUNC(6, ACMD_SEEK, QC_FORWARD, 0, 0, 0, 0); + break; + + case 6: + arq_state = 1; + timeout(ft_timeout, (caddr_t) ftu, hz / 10); /* XXX */ + break; + + case 7: + ft->moving = 0; + + /* Check one last time to see if a request came in. */ + if (ft->curseg->reqtype != FTIO_READY) { + DPRT(("async_req: Never say no!\n")); + arq_state = 1; + goto restate; + } + /* Time to rest. */ + ft->active = 0; + wakeup((caddr_t) & ftsem.iosts_change); /* wakeup those who want + * an i/o chg */ + break; + } +} + +/* + * Entry for async read. + */ +void +async_read(ftu_t ftu, int from) +{ + ft_p ft = &ft_data[ftu]; + fdcu_t fdcu = ft->fdc->fdcu; /* fdc active unit */ + unsigned long paddr; + int i, cmd, newcn, rddta[7]; + int st0, pcn, where; + static int over_async; + + if (from == 2) + ard_state = over_async; + +restate: +#if FTDBGALL + DPRT(("async_read: state: %d from = %d\n", ard_state, from)); +#endif + switch (ard_state) { + case 0: /* Start off */ + /* If tape is not at desired position, stop and locate */ + if (ft->lastpos != (ft->xblk - 1)) { + DPRT(("ft%d: position unknown: lastpos:%d ft->xblk:%d\n", + ftu, ft->lastpos, ft->xblk)); + ACMD_FUNC(1, ACMD_RUNBLK, ft->xblk, 0, 0, 0, 0); + } + /* Tape is in position but stopped. */ + if (!ft->moving) { + DPRT(("async_read ******STARTING TAPE\n")); + ACMD_FUNC(3, ACMD_STATE, QS_READY, 0, 0, 0, 0); + } + ard_state = 1; + goto restate; + + case 1: /* Start DMA */ + /* Tape is now moving and in position-- start DMA now! */ + isa_dmastart(B_READ, ft->xptr, QCV_BLKSIZE, 2); + out_fdc(fdcu, 0x66); /* read */ + out_fdc(fdcu, 0x00); /* unit */ + out_fdc(fdcu, (ft->xblk % ftg->g_fdside) / ftg->g_fdtrk); /* cylinder */ + out_fdc(fdcu, ft->xblk / ftg->g_fdside); /* head */ + out_fdc(fdcu, (ft->xblk % ftg->g_fdtrk) + 1); /* sector */ + out_fdc(fdcu, 0x03); /* 1K sectors */ + out_fdc(fdcu, (ft->xblk % ftg->g_fdtrk) + 1); /* count */ + out_fdc(fdcu, 0x74); /* gap length */ + out_fdc(fdcu, 0xff); /* transfer size */ + ard_state = 2; + break; + + case 2: /* DMA completed */ + /* Transfer complete, get status */ + for (i = 0; i < 7; i++) + rddta[i] = in_fdc(fdcu); + isa_dmadone(B_READ, ft->xptr, QCV_BLKSIZE, 2); + +#if FTDBGALL + /* Compute where the controller thinks we are */ + where = (rddta[3] * ftg->g_fdtrk) + (rddta[4] * ftg->g_fdside) + rddta[5] - 1; + DPRT(("xfer done: st0:%02x st1:%02x st2:%02x c:%d h:%d s:%d pos:%d want:%d\n", + rddta[0], rddta[1], rddta[2], rddta[3], rddta[4], rddta[5], + where, ft->xblk)); +#endif + + /* Check for errors */ + if ((rddta[0] & 0xc0) != 0x00) { + if (rddta[1] & 0x04) { + /* Probably wrong position */ + ft->lastpos = ft->xblk; + ard_state = 0; + goto restate; + } else { + /* CRC/Address-mark/Data-mark, et. al. */ + DPRT(("ft%d: CRC error on block %d\n", fdcu, ft->xblk)); + ft->curseg->reqcrc |= (1 << ft->xcnt); + } + } + /* Otherwise, transfer completed okay. */ + ft->lastpos = ft->xblk; + ft->xblk++; + ft->xcnt++; + ft->xptr += QCV_BLKSIZE; + if (ft->xcnt < QCV_BLKSEG && ft->curseg->reqcan == 0) { + ard_state = 0; + goto restate; + } + DPRT(("Read done.. Cancel = %d\n", ft->curseg->reqcan)); + ft->io_sts = FTIO_READY; + break; + + case 3: + ft->moving = 1; + ACMD_FUNC(4, ACMD_SEEK, QC_FORWARD, 0, 0, 0, 0); + break; + + case 4: + ard_state = 1; + timeout(ft_timeout, (caddr_t) ftu, hz / 10); /* XXX */ + break; + + default: + DPRT(("ft%d: bad async_read state %d!!\n", ftu, ard_state)); + break; + } +} + + +/* + * Entry for async write. If from is 0, this came from the interrupt + * routine, if it's 1 then it was a timeout, if it's 2, then an async_cmd + * completed. + */ +void +async_write(ftu_t ftu, int from) +{ + ft_p ft = &ft_data[ftu]; + fdcu_t fdcu = ft->fdc->fdcu; /* fdc active unit */ + unsigned long paddr; + int i, cmd, newcn, rddta[7]; + int st0, pcn, where; + static int over_async; + static int retries = 0; + + if (from == 2) + awr_state = over_async; + +restate: +#if FTDBGALL + DPRT(("async_write: state: %d from = %d\n", awr_state, from)); +#endif + switch (awr_state) { + case 0: /* Start off */ + /* If tape is not at desired position, stop and locate */ + if (ft->lastpos != (ft->xblk - 1)) { + DPRT(("ft%d: position unknown: lastpos:%d ft->xblk:%d\n", + ftu, ft->lastpos, ft->xblk)); + ACMD_FUNC(1, ACMD_RUNBLK, ft->xblk, 0, 0, 0, 0); + } + /* Tape is in position but stopped. */ + if (!ft->moving) { + DPRT(("async_write ******STARTING TAPE\n")); + ACMD_FUNC(3, ACMD_STATE, QS_READY, 0, 0, 0, 0); + } + awr_state = 1; + goto restate; + + case 1: /* Start DMA */ + /* Tape is now moving and in position-- start DMA now! */ + isa_dmastart(B_WRITE, ft->xptr, QCV_BLKSIZE, 2); + out_fdc(fdcu, 0x45); /* write */ + out_fdc(fdcu, 0x00); /* unit */ + out_fdc(fdcu, (ft->xblk % ftg->g_fdside) / ftg->g_fdtrk); /* cylinder */ + out_fdc(fdcu, ft->xblk / ftg->g_fdside); /* head */ + out_fdc(fdcu, (ft->xblk % ftg->g_fdtrk) + 1); /* sector */ + out_fdc(fdcu, 0x03); /* 1K sectors */ + out_fdc(fdcu, (ft->xblk % ftg->g_fdtrk) + 1); /* count */ + out_fdc(fdcu, 0x74); /* gap length */ + out_fdc(fdcu, 0xff); /* transfer size */ + awr_state = 2; + break; + + case 2: /* DMA completed */ + /* Transfer complete, get status */ + for (i = 0; i < 7; i++) + rddta[i] = in_fdc(fdcu); + isa_dmadone(B_WRITE, ft->xptr, QCV_BLKSIZE, 2); + +#if FTDBGALL + /* Compute where the controller thinks we are */ + where = (rddta[3] * ftg->g_fdtrk) + (rddta[4] * ftg->g_fdside) + rddta[5] - 1; + DPRT(("xfer done: st0:%02x st1:%02x st2:%02x c:%d h:%d s:%d pos:%d want:%d\n", + rddta[0], rddta[1], rddta[2], rddta[3], rddta[4], rddta[5], + where, ft->xblk)); +#endif + + /* Check for errors */ + if ((rddta[0] & 0xc0) != 0x00) { + if (rddta[1] & 0x04) { + /* Probably wrong position */ + ft->lastpos = ft->xblk; + awr_state = 0; + goto restate; + } else if (retries < 5) { + /* Something happened -- try again */ + ft->lastpos = ft->xblk; + awr_state = 0; + retries++; + goto restate; + } else { + /* + * Retries failed. Note the unrecoverable + * error. Marking the block as bad is fairly + * useless. + */ + printf("ft%d: unrecoverable write error on block %d\n", + ftu, ft->xblk); + ft->curseg->reqcrc |= (1 << ft->xcnt); + } + } + /* Otherwise, transfer completed okay. */ + retries = 0; + ft->lastpos = ft->xblk; + ft->xblk++; + ft->xcnt++; + ft->xptr += QCV_BLKSIZE; + if (ft->xcnt < QCV_BLKSEG) { + awr_state = 0; /* next block */ + goto restate; + } +#if FTDBGALL + DPRT(("Write done.\n")); +#endif + ft->io_sts = FTIO_READY; + break; + + case 3: + ft->moving = 1; + ACMD_FUNC(4, ACMD_SEEK, QC_FORWARD, 0, 0, 0, 0); + break; + + case 4: + awr_state = 1; + timeout(ft_timeout, (caddr_t) ftu, hz / 10); /* XXX */ + break; + + default: + DPRT(("ft%d: bad async_write state %d!!\n", ftu, awr_state)); + break; + } +} + + +/* + * Interrupt handler for active tape. Bounced off of fdintr(). + */ +int +ftintr(ftu_t ftu) +{ + int st0, pcn, i; + ft_p ft = &ft_data[ftu]; + fdcu_t fdcu = ft->fdc->fdcu; /* fdc active unit */ + st0 = 0; + pcn = 0; + + /* I/O segment transfer completed */ + if (ft->active) { + if (async_func != ACMD_NONE) { + async_cmd(ftu); + return (1); + } +#if FTDBGALL + DPRT(("Got request interrupt\n")); +#endif + async_req(ftu, 0); + return (1); + } + /* Get interrupt status */ + if (ft->cmd_wait != FTCMD_READID) { + out_fdc(fdcu, NE7CMD_SENSEI); + st0 = in_fdc(fdcu); + pcn = in_fdc(fdcu); + } + if (ft->cmd_wait == FTCMD_NONE || ft->sts_wait != FTSTS_SNOOZE) { +huh_what: + printf("ft%d: unexpected interrupt; st0 = $%02x pcn = %d\n", + ftu, st0, pcn); + return (1); + } + switch (ft->cmd_wait) { + case FTCMD_RESET: + ft->sts_wait = FTSTS_INTERRUPT; + wakeup((caddr_t) & ftsem.intr_wait); + break; + case FTCMD_RECAL: + case FTCMD_SEEK: + if (st0 & 0x20) { /* seek done */ + ft->sts_wait = FTSTS_INTERRUPT; + ft->pcn = pcn; + wakeup((caddr_t) & ftsem.intr_wait); + } +#if FTDBGALL + else + DPRT(("ft%d: seek error st0 = $%02x pcn = %d\n", + ftu, st0, pcn)); +#endif + break; + case FTCMD_READID: + for (i = 0; i < 7; i++) + ft->rid[i] = in_fdc(fdcu); + ft->sts_wait = FTSTS_INTERRUPT; + wakeup((caddr_t) & ftsem.intr_wait); + break; + + default: + goto huh_what; + } + + return (1); +} + +/* + * Interrupt timeout routine. + */ +static void +ft_timeout(void *arg1) +{ + int s; + ftu_t ftu = (ftu_t) arg1; + ft_p ft = &ft_data[ftu]; + + s = splbio(); + if (ft->active) { + if (async_func != ACMD_NONE) { + async_cmd(ftu); + splx(s); + return; + } + async_req(ftu, 1); + } else { + ft->sts_wait = FTSTS_TIMEOUT; + wakeup((caddr_t) & ftsem.intr_wait); + } + splx(s); +} + +/* + * Wait for a particular interrupt to occur. ftintr() will wake us up if it + * sees what we want. Otherwise, time out and return error. Should always + * disable ints before trigger is sent and calling here. + */ +int +ftintr_wait(ftu_t ftu, int cmd, int ticks) +{ + int retries, st0, pcn; + ft_p ft = &ft_data[ftu]; + fdcu_t fdcu = ft->fdc->fdcu; /* fdc active unit */ + + ft->cmd_wait = cmd; + ft->sts_wait = FTSTS_SNOOZE; + + /* At attach time, we can't rely on having interrupts serviced */ + if (ft->attaching) { + switch (cmd) { + case FTCMD_RESET: + DELAY(100); + ft->sts_wait = FTSTS_INTERRUPT; + goto intrdone; + case FTCMD_RECAL: + case FTCMD_SEEK: + for (retries = 0; retries < 10000; retries++) { + out_fdc(fdcu, NE7CMD_SENSEI); + st0 = in_fdc(fdcu); + pcn = in_fdc(fdcu); + if (st0 & 0x20) { + ft->sts_wait = FTSTS_INTERRUPT; + ft->pcn = pcn; + goto intrdone; + } + DELAY(100); + } + break; + } + ft->sts_wait = FTSTS_TIMEOUT; + goto intrdone; + } + if (ticks) + timeout(ft_timeout, (caddr_t) ftu, ticks); + tsleep((caddr_t) & ftsem.intr_wait, FTPRI, "ftwait", 0); + +intrdone: + if (ft->sts_wait == FTSTS_TIMEOUT) { /* timeout */ + if (ft->cmd_wait != FTCMD_RESET) + DPRT(("ft%d: timeout on command %d\n", ftu, ft->cmd_wait)); + ft->cmd_wait = FTCMD_NONE; + ft->sts_wait = FTSTS_NONE; + return (1); + } + /* got interrupt */ + if (ft->attaching == 0 && ticks) + untimeout(ft_timeout, (caddr_t) ftu); + ft->cmd_wait = FTCMD_NONE; + ft->sts_wait = FTSTS_NONE; + return (0); +} + +/* + * Recalibrate tape drive. Parameter totape is true, if we should + * recalibrate to tape drive settings. + */ +int +tape_recal(ftu_t ftu, int totape) +{ + int s; + ft_p ft = &ft_data[ftu]; + fdcu_t fdcu = ft->fdc->fdcu; /* fdc active unit */ + + DPRT(("tape_recal start\n")); + + out_fdc(fdcu, NE7CMD_SPECIFY); + out_fdc(fdcu, (totape) ? 0xAD : 0xDF); + out_fdc(fdcu, 0x02); + + s = splbio(); + out_fdc(fdcu, NE7CMD_RECAL); + out_fdc(fdcu, 0x00); + + if (ftintr_wait(ftu, FTCMD_RECAL, hz)) { + splx(s); + DPRT(("ft%d: recalibrate timeout\n", ftu)); + return (1); + } + splx(s); + + out_fdc(fdcu, NE7CMD_SPECIFY); + out_fdc(fdcu, (totape) ? 0xFD : 0xDF); + out_fdc(fdcu, 0x02); + + DPRT(("tape_recal end\n")); + return (0); +} + +static void +state_timeout(void *arg1) +{ + ftu_t ftu = (ftu_t) arg1; + + wakeup((caddr_t) & ftsem.long_delay); +} + +/* + * Wait for a particular tape status to be met. If all is TRUE, then all + * states must be met, otherwise any state can be met. + */ +int +tape_state(ftu_t ftu, int all, int mask, int seconds) +{ + int r, tries, maxtries; + + maxtries = (seconds) ? (4 * seconds) : 1; + for (tries = 0; tries < maxtries; tries++) { + r = tape_status(ftu); + if (r >= 0) { + if (all && (r & mask) == mask) + return (r); + if ((r & mask) != 0) + return (r); + } + if (seconds) { + timeout(state_timeout, (caddr_t) ftu, hz / 4); + tsleep((caddr_t) & ftsem.long_delay, FTPRI, "ftstate", 0); + } + } + DPRT(("ft%d: tape_state failed on mask=$%02x maxtries=%d\n", + ftu, mask, maxtries)); + return (-1); +} + +/* + * Send a QIC command to tape drive, wait for completion. + */ +int +tape_cmd(ftu_t ftu, int cmd) +{ + int newcn; + int retries = 0; + int s; + ft_p ft = &ft_data[ftu]; + fdcu_t fdcu = ft->fdc->fdcu; /* fdc active unit */ + + DPRT(("===> tape_cmd: %d\n", cmd)); + newcn = (cmd <= ft->pcn) ? ft->pcn - cmd : ft->pcn + cmd; + +retry: + + /* Perform seek */ + s = splbio(); + out_fdc(fdcu, NE7CMD_SEEK); + out_fdc(fdcu, 0x00); + out_fdc(fdcu, newcn); + + if (ftintr_wait(ftu, FTCMD_SEEK, hz)) { + DPRT(("ft%d: tape_cmd seek timeout\n", ftu)); +redo: + splx(s); + if (++retries < 5) + goto retry; + DPRT(("ft%d: tape_cmd seek failed!\n", ftu)); + return (1); + } + splx(s); + + if (ft->pcn != newcn) { + DPRT(("ft%d: bad seek in tape_cmd; pcn = %d newcn = %d\n", + ftu, ft->pcn, newcn)); + goto redo; + } + DELAY(2500); + return (0); +} + +/* + * Return status of tape drive + */ +int +tape_status(ftu_t ftu) +{ + int r, err, tries; + ft_p ft = &ft_data[ftu]; + + for (r = -1, tries = 0; r < 0 && tries < 3; tries++) + r = qic_status(ftu, QC_STATUS, 8); + if (tries == 3) + return (-1); + DPRT(("tape_status got $%04x\n", r)); + ft->laststs = r; + + if (r & (QS_ERROR | QS_NEWCART)) { + if (r & QS_NEWCART) + ft->newcart = 1; + err = qic_status(ftu, QC_ERRCODE, 16); + ft->lasterr = err; + if ((r & QS_NEWCART) == 0 && err && ft->attaching == 0) { + DPRT(("ft%d: QIC error %d occurred on cmd %d\n", + ftu, err & 0xff, err >> 8)); + } + r = qic_status(ftu, QC_STATUS, 8); + ft->laststs = r; + DPRT(("tape_status got error code $%04x new sts = $%02x\n", err, r)); + } + ft->rdonly = (r & QS_RDONLY); + return (r); +} + +/* + * Transfer control to tape drive. + */ +void +tape_start(ftu_t ftu) +{ + ft_p ft = &ft_data[ftu]; + fdc_p fdc = ft->fdc; + int s; + + DPRT(("tape_start start\n")); + + s = splbio(); + + /* reset, dma disable */ + outb(fdc->baseport + fdout, 0x00); + (void) ftintr_wait(ftu, FTCMD_RESET, hz / 10); + + /* raise reset, enable DMA */ + outb(fdc->baseport + fdout, FDO_FRST | FDO_FDMAEN); + (void) ftintr_wait(ftu, FTCMD_RESET, hz / 10); + + splx(s); + + tape_recal(ftu, 1); + + /* set transfer speed */ + outb(fdc->baseport + fdctl, FDC_500KBPS); + DELAY(10); + + DPRT(("tape_start end\n")); +} + +/* + * Transfer control back to floppy disks. + */ +void +tape_end(ftu_t ftu) +{ + ft_p ft = &ft_data[ftu]; + fdc_p fdc = ft->fdc; + int s; + + DPRT(("tape_end start\n")); + tape_recal(ftu, 0); + + s = splbio(); + + /* reset, dma disable */ + outb(fdc->baseport + fdout, 0x00); + (void) ftintr_wait(ftu, FTCMD_RESET, hz / 10); + + /* raise reset, enable DMA */ + outb(fdc->baseport + fdout, FDO_FRST | FDO_FDMAEN); + (void) ftintr_wait(ftu, FTCMD_RESET, hz / 10); + + splx(s); + + /* set transfer speed */ + outb(fdc->baseport + fdctl, FDC_500KBPS); + DELAY(10); + fdc->flags &= ~FDC_TAPE_BUSY; + + DPRT(("tape_end end\n")); +} + +/* + * Wait for the driver to go inactive, cancel readahead if necessary. + */ +void +tape_inactive(ftu_t ftu) +{ + ft_p ft = &ft_data[ftu]; + + if (ft->curseg->reqtype == FTIO_RDAHEAD) { + ft->curseg->reqcan = 1; /* XXX cancel rdahead */ + while (ft->active) + tsleep((caddr_t) & ftsem.iosts_change, FTPRI, "ftinact", 0); + } + while (ft->active) + tsleep((caddr_t) & ftsem.iosts_change, FTPRI, "ftinact", 0); +} + +/* + * Get the geometry of the tape currently in the drive. + */ +int +ftgetgeom(ftu_t ftu) +{ + int r, i, tries; + int cfg, qic80, ext; + int sts, fmt, len; + ft_p ft = &ft_data[ftu]; + + r = tape_status(ftu); + + /* XXX fix me when format mode is finished */ + if ((r & QS_CART) == 0 || (r & QS_FMTOK) == 0) { + DPRT(("ftgetgeom: no cart or not formatted 0x%04x\n", r)); + ftg = NULL; + ft->newcart = 1; + return (0); + } + /* Report drive configuration */ + for (cfg = -1, tries = 0; cfg < 0 && tries < 3; tries++) + cfg = qic_status(ftu, QC_CONFIG, 8); + if (tries == 3) { + DPRT(("ftgetgeom report config failed\n")); + ftg = NULL; + return (-1); + } + DPRT(("ftgetgeom report config got $%04x\n", cfg)); + ft->lastcfg = cfg; + + qic80 = cfg & QCF_QIC80; + ext = cfg & QCF_EXTRA; + + /* + * XXX - This doesn't seem to work on my Colorado Jumbo 250... if it + * works on your drive, I'd sure like to hear about it. + */ +#if 0 + /* Report drive status */ + for (sts = -1, tries = 0; sts < 0 && tries < 3; tries++) + sts = qic_status(ftu, QC_TSTATUS, 8); + if (tries == 3) { + DPRT(("ftgetgeom report tape status failed\n")); + ftg = NULL; + return (-1); + } + DPRT(("ftgetgeom report tape status got $%04x\n", sts)); +#else + /* + * XXX - Forge a fake tape status based upon the returned + * configuration, since the above command or code is broken for my + * drive and probably other older drives. + */ + sts = 0; + sts = (qic80) ? QTS_QIC80 : QTS_QIC40; + sts |= (ext) ? QTS_LEN2 : QTS_LEN1; +#endif + + fmt = sts & QTS_FMMASK; + len = (sts & QTS_LNMASK) >> 4; + + if (fmt > QCV_NFMT) { + ftg = NULL; + printf("ft%d: unsupported tape format\n", ftu); + return (-1); + } + if (len > QCV_NLEN) { + ftg = NULL; + printf("ft%d: unsupported tape length\n", ftu); + return (-1); + } + /* Look up geometry in the table */ + for (i = 1; i < NGEOM; i++) + if (ftgtbl[i].g_fmtno == fmt && ftgtbl[i].g_lenno == len) + break; + if (i == NGEOM) { + printf("ft%d: unknown tape geometry\n", ftu); + ftg = NULL; + return (-1); + } + ftg = &ftgtbl[i]; + if (!ftg->g_trktape) { + printf("ft%d: unsupported format %s w/len %s\n", + ftu, ftg->g_fmtdesc, ftg->g_lendesc); + ftg = NULL; + return (-1); + } + DPRT(("Tape format is %s, length is %s\n", ftg->g_fmtdesc, ftg->g_lendesc)); + ft->newcart = 0; + return (0); +} + +/* + * Switch between tape/floppy. This will send the tape enable/disable codes + * for this drive's manufacturer. + */ +int +set_fdcmode(dev_t dev, int newmode) +{ + ftu_t ftu = FDUNIT(minor(dev)); + ft_p ft = &ft_data[ftu]; + fdc_p fdc = ft->fdc; + + static int havebufs = 0; + void *buf; + int r, s, i; + SegReq *sp; + + if (newmode == FDC_TAPE_MODE) { + /* Wake up the tape drive */ + switch (ft->type) { + case NO_TYPE: + fdc->flags &= ~FDC_TAPE_BUSY; + return (ENXIO); + case FT_COLORADO: + tape_start(ftu); + if (tape_cmd(ftu, QC_COL_ENABLE1)) { + tape_end(ftu); + return (EIO); + } + if (tape_cmd(ftu, QC_COL_ENABLE2)) { + tape_end(ftu); + return (EIO); + } + break; + case FT_MOUNTAIN: + tape_start(ftu); + if (tape_cmd(ftu, QC_MTN_ENABLE1)) { + tape_end(ftu); + return (EIO); + } + if (tape_cmd(ftu, QC_MTN_ENABLE2)) { + tape_end(ftu); + return (EIO); + } + break; + default: + DPRT(("ft%d: bad tape type\n", ftu)); + return (ENXIO); + } + if (tape_status(ftu) < 0) { + tape_cmd(ftu, (ft->type == FT_COLORADO) ? QC_COL_DISABLE : QC_MTN_DISABLE); + tape_end(ftu); + return (EIO); + } + /* Grab buffers from memory. */ + if (!havebufs) { + ft->curseg = malloc(sizeof(SegReq), M_DEVBUF, M_NOWAIT); + if (ft->curseg == NULL) { + printf("ft%d: not enough memory for buffers\n", ftu); + return (ENOMEM); + } + ft->bufseg = malloc(sizeof(SegReq), M_DEVBUF, M_NOWAIT); + if (ft->bufseg == NULL) { + free(ft->curseg, M_DEVBUF); + printf("ft%d: not enough memory for buffers\n", ftu); + return (ENOMEM); + } + havebufs = 1; + } + ft->curseg->reqtype = FTIO_READY; + ft->bufseg->reqtype = FTIO_READY; + ft->io_sts = FTIO_READY; /* tape drive is ready */ + ft->active = 0; /* interrupt driver not active */ + ft->moving = 0; /* tape not moving */ + ft->rdonly = 0; /* tape read only */ + ft->newcart = 0;/* a new cart was inserted */ + ft->lastpos = -1; /* tape is rewound */ + tape_state(ftu, 0, QS_READY, 60); + tape_cmd(ftu, QC_RATE); + tape_cmd(ftu, QCF_RT500 + 2); /* 500K bps */ + tape_state(ftu, 0, QS_READY, 60); + ft->mode = FTM_PRIMARY; + tape_cmd(ftu, QC_PRIMARY); /* Make sure we're in primary + * mode */ + tape_state(ftu, 0, QS_READY, 60); + ftg = NULL; /* No geometry yet */ + ftgetgeom(ftu); /* Get tape geometry */ + ftreq_rewind(ftu); /* Make sure tape is rewound */ + } else { + tape_cmd(ftu, (ft->type == FT_COLORADO) ? QC_COL_DISABLE : QC_MTN_DISABLE); + tape_end(ftu); + ft->newcart = 0;/* clear new cartridge */ + havebufs = 0; + free(ft->curseg, M_DEVBUF); + free(ft->bufseg, M_DEVBUF); + } + return (0); +} + + +/* + * Perform a QIC status function. + */ +int +qic_status(ftu_t ftu, int cmd, int nbits) +{ + int st3, val, r, i; + ft_p ft = &ft_data[ftu]; + fdcu_t fdcu = ft->fdc->fdcu; /* fdc active unit */ + + if (tape_cmd(ftu, cmd)) { + DPRT(("ft%d: QIC status timeout\n", ftu)); + return (-1); + } + /* Sense drive status */ + out_fdc(fdcu, NE7CMD_SENSED); + out_fdc(fdcu, 0x00); + st3 = in_fdc(fdcu); + + if ((st3 & 0x10) == 0) {/* track 0 */ + DPRT(("qic_status has dead drive... st3 = $%02x\n", st3)); + return (-1); + } + for (i = r = 0; i <= nbits; i++) { + if (tape_cmd(ftu, QC_NEXTBIT)) { + DPRT(("ft%d: QIC status bit timed out on %d\n", ftu, i)); + return (-1); + } + out_fdc(fdcu, NE7CMD_SENSED); + out_fdc(fdcu, 0x00); + st3 = in_fdc(fdcu); + if (st3 < 0) { + DPRT(("ft%d: controller timed out on bit %d r=$%02x\n", + ftu, i, r)); + return (-1); + } + r >>= 1; + if (i < nbits) + r |= ((st3 & 0x10) ? 1 : 0) << nbits; + else if ((st3 & 0x10) == 0) { + DPRT(("ft%d: qic status stop bit missing at %d, st3=$%02x r=$%04x\n", + ftu, i, st3, r)); + return (-1); + } + } + + DPRT(("qic_status returned $%02x\n", r)); + return (r); +} + +/* + * Open tape drive for use. Bounced off of Fdopen if tape minor is detected. + */ +int +ftopen(dev_t dev, int arg2) +{ + ftu_t ftu = FDUNIT(minor(dev)); + int type = FDTYPE(minor(dev)); + fdc_p fdc; + + /* check bounds */ + if (ftu >= NFT) + return (ENXIO); + fdc = ft_data[ftu].fdc; + /* check for controller already busy with tape */ + if (fdc->flags & FDC_TAPE_BUSY) + return (EBUSY); + /* make sure we found a tape when probed */ + if (!(fdc->flags & FDC_HASFTAPE)) + return (ENODEV); + fdc->fdu = ftu; + fdc->flags |= FDC_TAPE_BUSY; + return (set_fdcmode(dev, FDC_TAPE_MODE)); /* try to switch to tape */ +} + +/* + * Close tape and return floppy controller to disk mode. + */ +int +ftclose(dev_t dev, int flags) +{ + int s; + SegReq *sp; + ftu_t ftu = FDUNIT(minor(dev)); + ft_p ft = &ft_data[ftu]; + + /* Wait for any remaining I/O activity to complete. */ + if (ft->curseg->reqtype == FTIO_RDAHEAD) + ft->curseg->reqcan = 1; + while (ft->active) + tsleep((caddr_t) & ftsem.iosts_change, FTPRI, "ftclose", 0); + + ft->mode = FTM_PRIMARY; + tape_cmd(ftu, QC_PRIMARY); + tape_state(ftu, 0, QS_READY, 60); + ftreq_rewind(ftu); + return (set_fdcmode(dev, FDC_DISK_MODE)); /* Otherwise, close tape */ +} + +/* + * Perform strategy on a given buffer (not!). The driver was not performing + * very efficiently using the buffering routines. After support for error + * correction was added, this routine became obsolete in favor of doing + * ioctl's. Ugly, yes. + */ +void +ftstrategy(struct buf * bp) +{ + return; +} + +/* Read or write a segment. */ +int +ftreq_rw(ftu_t ftu, int cmd, QIC_Segment * sr, struct proc * p) +{ + int r, i, j; + SegReq *sp; + int s; + long blk, bad; + unsigned char *cp, *cp2; + ft_p ft = &ft_data[ftu]; + + if (!ft->active) { + r = tape_status(ftu); + if ((r & QS_CART) == 0) { + return (ENXIO); /* No cartridge */ + } + if ((r & QS_FMTOK) == 0) { + return (ENXIO); /* Not formatted */ + } + tape_state(ftu, 0, QS_READY, 90); + } + if (ftg == NULL || ft->newcart) { + while (ft->active) + tsleep((caddr_t) & ftsem.iosts_change, FTPRI, "ftrw", 0); + tape_state(ftu, 0, QS_READY, 90); + if (ftgetgeom(ftu) < 0) { + return (ENXIO); + } + } + /* Write not allowed on a read-only tape. */ + if (cmd == QIOWRITE && ft->rdonly) { + return (EROFS); + } + /* Quick check of request and buffer. */ + if (sr == NULL || sr->sg_data == NULL) { + return (EINVAL); + } + if (sr->sg_trk >= ftg->g_trktape || + sr->sg_seg >= ftg->g_segtrk) { + return (EINVAL); + } + blk = sr->sg_trk * ftg->g_blktrk + sr->sg_seg * QCV_BLKSEG; + + s = splbio(); + if (cmd == QIOREAD) { + if (ft->curseg->reqtype == FTIO_RDAHEAD) { + if (blk == ft->curseg->reqblk) { + sp = ft->curseg; + sp->reqtype = FTIO_READING; + sp->reqbad = sr->sg_badmap; + goto rdwait; + } else + ft->curseg->reqcan = 1; /* XXX cancel rdahead */ + } + /* Wait until we're ready. */ + while (ft->active) + tsleep((caddr_t) & ftsem.iosts_change, FTPRI, "ftrw", 0); + + /* Set up a new read request. */ + sp = ft->curseg; + sp->reqcrc = 0; + sp->reqbad = sr->sg_badmap; + sp->reqblk = blk; + sp->reqcan = 0; + sp->reqtype = FTIO_READING; + + /* Start the read request off. */ + DPRT(("Starting read I/O chain\n")); + arq_state = ard_state = awr_state = 0; + ft->xblk = sp->reqblk; + ft->xcnt = 0; + ft->xptr = sp->buff; + ft->active = 1; + timeout(ft_timeout, (caddr_t) ftu, 1); + +rdwait: + tsleep((caddr_t) & ftsem.buff_avail, FTPRI, "ftrw", 0); + bad = sp->reqbad; + sr->sg_crcmap = sp->reqcrc & ~bad; + + /* Copy out segment and discard bad mapped blocks. */ + cp = sp->buff; + cp2 = sr->sg_data; + for (i = 0; i < QCV_BLKSEG; cp += QCV_BLKSIZE, i++) { + if (bad & (1 << i)) + continue; + copyout(cp, cp2, QCV_BLKSIZE); + cp2 += QCV_BLKSIZE; + } + } else { + if (ft->curseg->reqtype == FTIO_RDAHEAD) { + ft->curseg->reqcan = 1; /* XXX cancel rdahead */ + while (ft->active) + tsleep((caddr_t) & ftsem.iosts_change, FTPRI, "ftrw", 0); + } + /* Sleep until a buffer becomes available. */ + while (ft->bufseg->reqtype != FTIO_READY) + tsleep((caddr_t) & ftsem.buff_avail, FTPRI, "ftrwbuf", 0); + sp = (ft->curseg->reqtype == FTIO_READY) ? ft->curseg : ft->bufseg; + + /* Copy in segment and expand bad blocks. */ + bad = sr->sg_badmap; + cp = sr->sg_data; + cp2 = sp->buff; + for (i = 0; i < QCV_BLKSEG; cp2 += QCV_BLKSIZE, i++) { + if (bad & (1 << i)) + continue; + copyin(cp, cp2, QCV_BLKSIZE); + cp += QCV_BLKSIZE; + } + + sp->reqblk = blk; + sp->reqcan = 0; + sp->reqtype = FTIO_WRITING; + + if (!ft->active) { + DPRT(("Starting write I/O chain\n")); + arq_state = ard_state = awr_state = 0; + ft->xblk = sp->reqblk; + ft->xcnt = 0; + ft->xptr = sp->buff; + ft->active = 1; + timeout(ft_timeout, (caddr_t) ftu, 1); + } + } + splx(s); + return (0); +} + + +/* Rewind to beginning of tape */ +int +ftreq_rewind(ftu_t ftu) +{ + ft_p ft = &ft_data[ftu]; + + tape_inactive(ftu); + tape_cmd(ftu, QC_STOP); + tape_state(ftu, 0, QS_READY, 90); + tape_cmd(ftu, QC_SEEKSTART); + tape_state(ftu, 0, QS_READY, 90); + tape_cmd(ftu, QC_SEEKTRACK); + tape_cmd(ftu, 2); + tape_state(ftu, 0, QS_READY, 90); + ft->lastpos = -1; + ft->moving = 0; + return (0); +} + +/* Move to logical beginning or end of track */ +int +ftreq_trkpos(ftu_t ftu, int req) +{ + int curtrk, r, cmd; + ft_p ft = &ft_data[ftu]; + + tape_inactive(ftu); + tape_cmd(ftu, QC_STOP); + tape_state(ftu, 0, QS_READY, 90); + + r = tape_status(ftu); + if ((r & QS_CART) == 0) + return (ENXIO); /* No cartridge */ + if ((r & QS_FMTOK) == 0) + return (ENXIO); /* Not formatted */ + + if (ftg == NULL || ft->newcart) { + if (ftgetgeom(ftu) < 0) + return (ENXIO); + } + curtrk = (ft->lastpos < 0) ? 0 : ft->lastpos / ftg->g_blktrk; + if (req == QIOBOT) + cmd = (curtrk & 1) ? QC_SEEKEND : QC_SEEKSTART; + else + cmd = (curtrk & 1) ? QC_SEEKSTART : QC_SEEKEND; + tape_cmd(ftu, cmd); + tape_state(ftu, 0, QS_READY, 90); + return (0); +} + +/* Seek tape head to a particular track. */ +int +ftreq_trkset(ftu_t ftu, int *trk) +{ + int curtrk, r, cmd; + ft_p ft = &ft_data[ftu]; + + tape_inactive(ftu); + tape_cmd(ftu, QC_STOP); + tape_state(ftu, 0, QS_READY, 90); + + r = tape_status(ftu); + if ((r & QS_CART) == 0) + return (ENXIO); /* No cartridge */ + if ((r & QS_FMTOK) == 0) + return (ENXIO); /* Not formatted */ + if (ftg == NULL || ft->newcart) { + if (ftgetgeom(ftu) < 0) + return (ENXIO); + } + tape_cmd(ftu, QC_SEEKTRACK); + tape_cmd(ftu, *trk + 2); + tape_state(ftu, 0, QS_READY, 90); + return (0); +} + +/* Start tape moving forward. */ +int +ftreq_lfwd(ftu_t ftu) +{ + tape_inactive(ftu); + tape_cmd(ftu, QC_STOP); + tape_state(ftu, 0, QS_READY, 90); + tape_cmd(ftu, QC_FORWARD); + return (0); +} + +/* Stop the tape */ +int +ftreq_stop(ftu_t ftu) +{ + tape_inactive(ftu); + tape_cmd(ftu, QC_STOP); + tape_state(ftu, 0, QS_READY, 90); + return (0); +} + +/* Set the particular mode the drive should be in. */ +int +ftreq_setmode(ftu_t ftu, int cmd) +{ + int r; + ft_p ft = &ft_data[ftu]; + + tape_inactive(ftu); + r = tape_status(ftu); + + switch (cmd) { + case QIOPRIMARY: + ft->mode = FTM_PRIMARY; + tape_cmd(ftu, QC_PRIMARY); + break; + case QIOFORMAT: + if (r & QS_RDONLY) + return (ENXIO); + if ((r & QS_BOT) == 0) + return (ENXIO); + tape_cmd(ftu, QC_FORMAT); + break; + case QIOVERIFY: + if ((r & QS_FMTOK) == 0) + return (ENXIO); /* Not formatted */ + tape_cmd(ftu, QC_VERIFY); + break; + } + tape_state(ftu, 0, QS_READY, 60); + return (0); +} + +/* Return drive status bits */ +int +ftreq_status(ftu_t ftu, int cmd, int *sts, struct proc * p) +{ + ft_p ft = &ft_data[ftu]; + + if (ft->active) + *sts = ft->laststs & ~QS_READY; + else + *sts = tape_status(ftu); + return (0); +} + +/* Return drive configuration bits */ +int +ftreq_config(ftu_t ftu, int cmd, int *cfg, struct proc * p) +{ + int r, tries; + ft_p ft = &ft_data[ftu]; + + if (ft->active) + r = ft->lastcfg; + else { + for (r = -1, tries = 0; r < 0 && tries < 3; tries++) + r = qic_status(ftu, QC_CONFIG, 8); + if (tries == 3) + return (ENXIO); + } + *cfg = r; + return (0); +} + +/* Return current tape's geometry. */ +int +ftreq_geom(ftu_t ftu, QIC_Geom * g) +{ + tape_inactive(ftu); + if (ftg == NULL && ftgetgeom(ftu) < 0) + return (ENXIO); + bcopy(ftg, g, sizeof(QIC_Geom)); + return (0); +} + +/* Return drive hardware information */ +int +ftreq_hwinfo(ftu_t ftu, QIC_HWInfo * hwp) +{ + int r, tries; + int rom, vend; + + tape_inactive(ftu); + bzero(hwp, sizeof(QIC_HWInfo)); + + for (rom = -1, tries = 0; rom < 0 && tries < 3; tries++) + rom = qic_status(ftu, QC_VERSION, 8); + if (rom > 0) { + hwp->hw_rombeta = (rom >> 7) & 0x01; + hwp->hw_romid = rom & 0x7f; + } + for (vend = -1, tries = 0; vend < 0 && tries < 3; tries++) + vend = qic_status(ftu, QC_VENDORID, 16); + if (vend > 0) { + hwp->hw_make = (vend >> 6) & 0x3ff; + hwp->hw_model = vend & 0x3f; + } + return (0); +} + +/* + * I/O functions. + */ +int +ftioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc * p) +{ + ftu_t ftu = FDUNIT(minor(dev)); + ft_p ft = &ft_data[ftu]; + + switch (cmd) { + case QIOREAD: /* Request reading a segment from tape. */ + case QIOWRITE: /* Request writing a segment to tape. */ + return (ftreq_rw(ftu, cmd, (QIC_Segment *) data, p)); + + case QIOREWIND: /* Rewind tape. */ + return (ftreq_rewind(ftu)); + + case QIOBOT: /* Seek to logical beginning of track. */ + case QIOEOT: /* Seek to logical end of track. */ + return (ftreq_trkpos(ftu, cmd)); + + case QIOTRACK: /* Seek tape head to specified track. */ + return (ftreq_trkset(ftu, (int *) data)); + + case QIOSEEKLP: /* Seek load point. */ + goto badreq; + + case QIOFORWARD: /* Move tape in logical forward direction. */ + return (ftreq_lfwd(ftu)); + + case QIOSTOP: /* Causes tape to stop. */ + return (ftreq_stop(ftu)); + + case QIOPRIMARY: /* Enter primary mode. */ + case QIOFORMAT: /* Enter format mode. */ + case QIOVERIFY: /* Enter verify mode. */ + return (ftreq_setmode(ftu, cmd)); + + case QIOWRREF: /* Write reference burst. */ + goto badreq; + + case QIOSTATUS: /* Get drive status. */ + return (ftreq_status(ftu, cmd, (int *) data, p)); + + case QIOCONFIG: /* Get tape configuration. */ + return (ftreq_config(ftu, cmd, (int *) data, p)); + + case QIOGEOM: + return (ftreq_geom(ftu, (QIC_Geom *) data)); + + case QIOHWINFO: + return (ftreq_hwinfo(ftu, (QIC_HWInfo *) data)); + } +badreq: + DPRT(("ft%d: unknown ioctl(%d) request\n", ftu, cmd)); + return (ENXIO); +} + +/* Not implemented */ +int +ftdump(dev_t dev) +{ + return (EINVAL); +} + +/* Not implemented */ +int +ftsize(dev_t dev) +{ + return (EINVAL); +} +#endif |
