/* $OpenBSD: fd.c,v 1.36 2004/04/02 04:31:21 deraadt Exp $ */ /* $NetBSD: fd.c,v 1.51 1997/05/24 20:16:19 pk Exp $ */ /*- * Copyright (c) 1993, 1994, 1995 Charles Hannum. * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * Don Ahn. * * Portions Copyright (c) 1993, 1994 by * jc@irbs.UUCP (John Capo) * vak@zebub.msk.su (Serge Vakulenko) * ache@astral.msk.su (Andrew A. Chernov) * joerg_wunsch@uriah.sax.de (Joerg Wunsch) * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. * * @(#)fd.c 7.4 (Berkeley) 5/25/91 */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define FDUNIT(dev) ((dev & 0x80) >> 7) #define FDTYPE(dev) ((minor(dev) & 0x70) >> 4) #define FDPART(dev) (minor(dev) & 0x0f) /* XXX misuse a flag to identify format operation */ #define B_FORMAT B_XXX #define b_cylin b_resid #define FD_DEBUG #ifdef FD_DEBUG int fdc_debug = 0; #endif enum fdc_state { DEVIDLE = 0, MOTORWAIT, DOSEEK, SEEKWAIT, SEEKTIMEDOUT, SEEKCOMPLETE, DOIO, IOCOMPLETE, IOTIMEDOUT, DORESET, RESETCOMPLETE, RESETTIMEDOUT, DORECAL, RECALWAIT, RECALTIMEDOUT, RECALCOMPLETE, }; /* software state, per controller */ struct fdc_softc { struct device sc_dev; /* boilerplate */ struct intrhand sc_sih; struct intrhand sc_hih; caddr_t sc_reg; struct fd_softc *sc_fd[4]; /* pointers to children */ TAILQ_HEAD(drivehead, fd_softc) sc_drives; enum fdc_state sc_state; int sc_flags; #define FDC_82077 0x01 #define FDC_NEEDHEADSETTLE 0x02 #define FDC_EIS 0x04 int sc_errors; /* number of retries so far */ int sc_overruns; /* number of DMA overruns */ int sc_cfg; /* current configuration */ struct fdcio sc_io; #define sc_reg_msr sc_io.fdcio_reg_msr #define sc_reg_fifo sc_io.fdcio_reg_fifo #define sc_reg_dor sc_io.fdcio_reg_dor #define sc_reg_drs sc_io.fdcio_reg_msr #define sc_istate sc_io.fdcio_istate #define sc_data sc_io.fdcio_data #define sc_tc sc_io.fdcio_tc #define sc_nstat sc_io.fdcio_nstat #define sc_status sc_io.fdcio_status #define sc_intrcnt sc_io.fdcio_intrcnt struct timeout fdctimeout_to; struct timeout fdcpseudointr_to; }; #ifndef FDC_C_HANDLER extern struct fdcio *fdciop; #endif /* controller driver configuration */ int fdcmatch(struct device *, void *, void *); void fdcattach(struct device *, struct device *, void *); struct cfattach fdc_ca = { sizeof(struct fdc_softc), fdcmatch, fdcattach }; struct cfdriver fdc_cd = { NULL, "fdc", DV_DULL }; __inline struct fd_type *fd_dev_to_type(struct fd_softc *, dev_t); /* The order of entries in the following table is important -- BEWARE! */ struct fd_type fd_types[] = { { 18,2,36,2,0xff,0xcf,0x1b,0x6c,80,2880,1,FDC_500KBPS, "1.44MB" }, /* 1.44MB diskette */ { 15,2,30,2,0xff,0xdf,0x1b,0x54,80,2400,1,FDC_500KBPS, "1.2MB" }, /* 1.2 MB AT-diskettes */ { 9,2,18,2,0xff,0xdf,0x23,0x50,40, 720,2,FDC_300KBPS, "360KB/AT" }, /* 360kB in 1.2MB drive */ { 9,2,18,2,0xff,0xdf,0x2a,0x50,40, 720,1,FDC_250KBPS, "360KB/PC" }, /* 360kB PC diskettes */ { 9,2,18,2,0xff,0xdf,0x2a,0x50,80,1440,1,FDC_250KBPS, "720KB" }, /* 3.5" 720kB diskette */ { 9,2,18,2,0xff,0xdf,0x23,0x50,80,1440,1,FDC_300KBPS, "720KB/x" }, /* 720kB in 1.2MB drive */ { 9,2,18,2,0xff,0xdf,0x2a,0x50,40, 720,2,FDC_250KBPS, "360KB/x" }, /* 360kB in 720kB drive */ }; /* software state, per disk (with up to 4 disks per ctlr) */ struct fd_softc { struct device sc_dv; /* generic device info */ struct disk sc_dk; /* generic disk info */ struct fd_type *sc_deftype; /* default type descriptor */ struct fd_type *sc_type; /* current type descriptor */ daddr_t sc_blkno; /* starting block number */ int sc_bcount; /* byte count left */ int sc_skip; /* bytes already transferred */ int sc_nblks; /* number of blocks currently transferring */ int sc_nbytes; /* number of bytes currently transferring */ int sc_drive; /* physical unit number */ int sc_flags; #define FD_OPEN 0x01 /* it's open */ #define FD_MOTOR 0x02 /* motor should be on */ #define FD_MOTOR_WAIT 0x04 /* motor coming up */ int sc_cylin; /* where we think the head is */ int sc_opts; /* user-set options */ void *sc_sdhook; /* shutdownhook cookie */ TAILQ_ENTRY(fd_softc) sc_drivechain; int sc_ops; /* I/O ops since last switch */ struct buf sc_q; /* head of buf chain */ struct timeout fd_motor_on_to; struct timeout fd_motor_off_to; }; /* floppy driver configuration */ int fdmatch(struct device *, void *, void *); void fdattach(struct device *, struct device *, void *); struct cfattach fd_ca = { sizeof(struct fd_softc), fdmatch, fdattach }; struct cfdriver fd_cd = { NULL, "fd", DV_DISK }; void fdgetdisklabel(dev_t); int fd_get_parms(struct fd_softc *); void fdstrategy(struct buf *); void fdstart(struct fd_softc *); int fdprint(void *, const char *); struct dkdriver fddkdriver = { fdstrategy }; struct fd_type *fd_nvtotype(char *, int, int); void fd_set_motor(struct fdc_softc *fdc); void fd_motor_off(void *arg); void fd_motor_on(void *arg); int fdcresult(struct fdc_softc *fdc); int out_fdc(struct fdc_softc *fdc, u_char x); void fdcstart(struct fdc_softc *fdc); void fdcstatus(struct device *dv, int n, char *s); void fdc_reset(struct fdc_softc *fdc); void fdctimeout(void *arg); void fdcpseudointr(void *arg); #ifdef FDC_C_HANDLER int fdchwintr(struct fdc_softc *); #else void fdchwintr(void); #endif int fdcswintr(struct fdc_softc *); int fdcstate(struct fdc_softc *); void fdcretry(struct fdc_softc *fdc); void fdfinish(struct fd_softc *fd, struct buf *bp); int fdformat(dev_t, struct fd_formb *, struct proc *); void fd_do_eject(struct fd_softc *); void fd_mountroot_hook(struct device *); static void fdconf(struct fdc_softc *); #if IPL_FDSOFT == 4 #define IE_FDSOFT IE_L4 #else #error 4 #endif #ifdef FDC_C_HANDLER #if defined(SUN4M) #define FD_SET_SWINTR do { \ if (CPU_ISSUN4M) \ raise(0, IPL_FDSOFT); \ else \ ienab_bis(IE_FDSOFT); \ } while(0) #else #define FD_SET_SWINTR ienab_bis(IE_FDSOFT) #endif /* defined(SUN4M) */ #endif /* FDC_C_HANDLER */ #define OBP_FDNAME (CPU_ISSUN4M ? "SUNW,fdtwo" : "fd") int fdcmatch(parent, match, aux) struct device *parent; void *match, *aux; { register struct confargs *ca = aux; register struct romaux *ra = &ca->ca_ra; /* * Floppy doesn't exist on sun4. */ if (CPU_ISSUN4) return (0); /* * Floppy controller is on mainbus on sun4c. */ if ((CPU_ISSUN4C) && (ca->ca_bustype != BUS_MAIN)) return (0); /* * Floppy controller is on obio on sun4m. */ if ((CPU_ISSUN4M) && (ca->ca_bustype != BUS_OBIO)) return (0); /* Sun PROMs call the controller an "fd" or "SUNW,fdtwo" */ if (strcmp(OBP_FDNAME, ra->ra_name)) return (0); if (ca->ca_ra.ra_vaddr && probeget(ca->ca_ra.ra_vaddr, 1) == -1) { return (0); } return (1); } /* * Arguments passed between fdcattach and fdprobe. */ struct fdc_attach_args { int fa_drive; struct bootpath *fa_bootpath; struct fd_type *fa_deftype; }; /* * Print the location of a disk drive (called just before attaching the * the drive). If `fdc' is not NULL, the drive was found but was not * in the system config file; print the drive name as well. * Return QUIET (config_find ignores this if the device was configured) to * avoid printing `fdN not configured' messages. */ int fdprint(aux, fdc) void *aux; const char *fdc; { register struct fdc_attach_args *fa = aux; if (!fdc) printf(" drive %d", fa->fa_drive); return (QUIET); } static void fdconf(fdc) struct fdc_softc *fdc; { int vroom; if (out_fdc(fdc, NE7CMD_DUMPREG) || fdcresult(fdc) != 10) return; /* * dumpreg[7] seems to be a motor-off timeout; set it to whatever * the PROM thinks is appropriate. */ if ((vroom = fdc->sc_status[7]) == 0) vroom = 0x64; /* Configure controller to use FIFO and Implied Seek */ out_fdc(fdc, NE7CMD_CFG); out_fdc(fdc, vroom); out_fdc(fdc, fdc->sc_cfg); out_fdc(fdc, 0); /* PRETRK */ /* No result phase */ } void fdcattach(parent, self, aux) struct device *parent, *self; void *aux; { register struct confargs *ca = aux; struct fdc_softc *fdc = (void *)self; struct fdc_attach_args fa; struct bootpath *bp; int pri; char code; if (ca->ca_ra.ra_vaddr) fdc->sc_reg = (caddr_t)ca->ca_ra.ra_vaddr; else fdc->sc_reg = (caddr_t)mapiodev(ca->ca_ra.ra_reg, 0, ca->ca_ra.ra_len); fdc->sc_state = DEVIDLE; fdc->sc_istate = ISTATE_IDLE; fdc->sc_flags |= FDC_EIS; TAILQ_INIT(&fdc->sc_drives); pri = ca->ca_ra.ra_intr[0].int_pri; #ifdef FDC_C_HANDLER fdc->sc_hih.ih_fun = (void *)fdchwintr; fdc->sc_hih.ih_arg = fdc; intr_establish(pri, &fdc->sc_hih, IPL_FD); #else fdciop = &fdc->sc_io; intr_fasttrap(pri, fdchwintr); #endif fdc->sc_sih.ih_fun = (void *)fdcswintr; fdc->sc_sih.ih_arg = fdc; intr_establish(IPL_FDSOFT, &fdc->sc_sih, IPL_BIO); /* Assume a 82077 */ fdc->sc_reg_msr = &((struct fdreg_77 *)fdc->sc_reg)->fd_msr; fdc->sc_reg_fifo = &((struct fdreg_77 *)fdc->sc_reg)->fd_fifo; fdc->sc_reg_dor = &((struct fdreg_77 *)fdc->sc_reg)->fd_dor; code = '7'; if (*fdc->sc_reg_dor == NE7_RQM) { /* * This hack from Chris Torek: apparently DOR really * addresses MSR/DRS on a 82072. * We used to rely on the VERSION command to tell the * difference (which did not work). */ *fdc->sc_reg_dor = FDC_250KBPS; if (*fdc->sc_reg_dor == NE7_RQM) code = '2'; } if (code == '7') { fdc->sc_flags |= FDC_82077; } else { fdc->sc_reg_msr = &((struct fdreg_72 *)fdc->sc_reg)->fd_msr; fdc->sc_reg_fifo = &((struct fdreg_72 *)fdc->sc_reg)->fd_fifo; fdc->sc_reg_dor = 0; } #ifdef FD_DEBUG if (out_fdc(fdc, NE7CMD_VERSION) == 0 && fdcresult(fdc) == 1 && fdc->sc_status[0] == 0x90) { if (fdc_debug) printf("[version cmd]"); } #endif /* * Configure controller; enable FIFO, Implied seek, no POLL mode?. * Note: CFG_EFIFO is active-low, initial threshold value: 8 */ fdc->sc_cfg = CFG_EIS|/*CFG_EFIFO|*/CFG_POLL|(8 & CFG_THRHLD_MASK); fdconf(fdc); if (fdc->sc_flags & FDC_82077) { /* Lock configuration across soft resets. */ out_fdc(fdc, NE7CMD_LOCK | CFG_LOCK); if (fdcresult(fdc) != 1) printf(" CFGLOCK: unexpected response"); } evcnt_attach(&fdc->sc_dev, "intr", &fdc->sc_intrcnt); printf(" pri %d, softpri %d: chip 8207%c\n", pri, IPL_FDSOFT, code); /* * Controller and drives are represented by one and the same * Openprom node, so we can as well check for the floppy boots here. */ fa.fa_bootpath = 0; if ((bp = ca->ca_ra.ra_bp) && strcmp(bp->name, OBP_FDNAME) == 0) { switch (ca->ca_bustype) { case BUS_MAIN: /* * We can get the bootpath in several different * formats! The faked v1 bootpath looks like /fd@0,0. * The v2 bootpath is either just /fd0, in which case * `bp->val[0]' will have been set to -1, or /fd@x,y * where is the prom address specifier. */ if (((bp->val[0] == ca->ca_ra.ra_iospace) && (bp->val[1] == (int)ca->ca_ra.ra_paddr)) || ((bp->val[0] == -1) && /* v2: /fd0 */ (bp->val[1] == 0)) || ((bp->val[0] == 0) && /* v1: /fd@0,0 */ (bp->val[1] == 0)) ) fa.fa_bootpath = bp; break; case BUS_OBIO: /* * floppy controller on obio (such as on the sun4m), * e.g.: `/obio0/SUNW,fdtwo@0,700000'. * We use "slot, offset" to determine if this is the * right one. */ if ((bp->val[0] == ca->ca_slot) && (bp->val[1] == ca->ca_offset)) fa.fa_bootpath = bp; break; } } timeout_set(&fdc->fdctimeout_to, fdctimeout, fdc); timeout_set(&fdc->fdcpseudointr_to, fdcpseudointr, fdc); /* * physical limit: four drives per controller, but the dev_t * only has room for 2 */ for (fa.fa_drive = 0; fa.fa_drive < 2; fa.fa_drive++) { fa.fa_deftype = NULL; /* unknown */ fa.fa_deftype = &fd_types[0]; /* XXX */ (void)config_found(self, (void *)&fa, fdprint); } bootpath_store(1, NULL); } int fdmatch(parent, match, aux) struct device *parent; void *match, *aux; { struct fdc_softc *fdc = (void *)parent; struct fdc_attach_args *fa = aux; int drive = fa->fa_drive; int n, ok; if (drive > 0) /* XXX - for now, punt on more than one drive */ return (0); if (fdc->sc_flags & FDC_82077) { /* select drive and turn on motor */ *fdc->sc_reg_dor = drive | FDO_FRST | FDO_MOEN(drive); } else { auxregbisc(AUXIO4C_FDS, 0); } /* wait for motor to spin up */ delay(250000); fdc->sc_nstat = 0; out_fdc(fdc, NE7CMD_RECAL); out_fdc(fdc, drive); /* wait for recalibrate */ for (n = 0; n < 10000; n++) { delay(1000); if ((*fdc->sc_reg_msr & (NE7_RQM|NE7_DIO|NE7_CB)) == NE7_RQM) { /* wait a bit longer till device *really* is ready */ delay(100000); if (out_fdc(fdc, NE7CMD_SENSEI)) break; if (fdcresult(fdc) == 1 && fdc->sc_status[0] == 0x80) /* * Got `invalid command'; we interpret it * to mean that the re-calibrate hasn't in * fact finished yet */ continue; break; } } n = fdc->sc_nstat; #ifdef FD_DEBUG if (fdc_debug) { int i; printf("fdprobe: %d stati:", n); for (i = 0; i < n; i++) printf(" %x", fdc->sc_status[i]); printf("\n"); } #endif ok = (n == 2 && (fdc->sc_status[0] & 0xf8) == 0x20) ? 1 : 0; /* turn off motor */ if (fdc->sc_flags & FDC_82077) { /* deselect drive and turn motor off */ *fdc->sc_reg_dor = FDO_FRST | FDO_DS; } else { auxregbisc(0, AUXIO4C_FDS); } return (ok); } /* * Controller is working, and drive responded. Attach it. */ void fdattach(parent, self, aux) struct device *parent, *self; void *aux; { struct fdc_softc *fdc = (void *)parent; struct fd_softc *fd = (void *)self; struct fdc_attach_args *fa = aux; struct fd_type *type = fa->fa_deftype; int drive = fa->fa_drive; /* XXX Allow `flags' to override device type? */ if (type) printf(": %s %d cyl, %d head, %d sec\n", type->name, type->tracks, type->heads, type->sectrac); else printf(": density unknown\n"); fd->sc_cylin = -1; fd->sc_drive = drive; fd->sc_deftype = type; fdc->sc_fd[drive] = fd; out_fdc(fdc, NE7CMD_SPECIFY); out_fdc(fdc, type->steprate); out_fdc(fdc, 6 | NE7_SPECIFY_NODMA); /* * Initialize and attach the disk structure. */ fd->sc_dk.dk_name = fd->sc_dv.dv_xname; fd->sc_dk.dk_driver = &fddkdriver; disk_attach(&fd->sc_dk); /* * We're told if we're the boot device in fdcattach(). */ if (fa->fa_bootpath) fa->fa_bootpath->dev = &fd->sc_dv; /* * Establish a mountroot_hook anyway in case we booted * with RB_ASKNAME and get selected as the boot device. */ mountroot_hook_establish(fd_mountroot_hook, &fd->sc_dv); /* Make sure the drive motor gets turned off at shutdown time. */ fd->sc_sdhook = shutdownhook_establish(fd_motor_off, fd); /* XXX Need to do some more fiddling with sc_dk. */ dk_establish(&fd->sc_dk, &fd->sc_dv); /* Setup timeouts */ timeout_set(&fd->fd_motor_on_to, fd_motor_on, fd); timeout_set(&fd->fd_motor_off_to, fd_motor_off, fd); } __inline struct fd_type * fd_dev_to_type(fd, dev) struct fd_softc *fd; dev_t dev; { int type = FDTYPE(dev); if (type > (sizeof(fd_types) / sizeof(fd_types[0]))) return (NULL); return (type ? &fd_types[type - 1] : fd->sc_deftype); } void fdstrategy(bp) register struct buf *bp; /* IO operation to perform */ { struct fd_softc *fd; int unit = FDUNIT(bp->b_dev); int sz; int s; /* Valid unit, controller, and request? */ if (unit >= fd_cd.cd_ndevs || (fd = fd_cd.cd_devs[unit]) == 0 || bp->b_blkno < 0 || ((bp->b_bcount % FDC_BSIZE) != 0 && (bp->b_flags & B_FORMAT) == 0)) { bp->b_error = EINVAL; goto bad; } /* If it's a null transfer, return immediately. */ if (bp->b_bcount == 0) goto done; sz = howmany(bp->b_bcount, FDC_BSIZE); if (bp->b_blkno + sz > fd->sc_type->size) { sz = fd->sc_type->size - bp->b_blkno; if (sz == 0) { /* If exactly at end of disk, return EOF. */ bp->b_resid = bp->b_bcount; goto done; } if (sz < 0) { /* If past end of disk, return EINVAL. */ bp->b_error = EINVAL; goto bad; } /* Otherwise, truncate request. */ bp->b_bcount = sz << DEV_BSHIFT; } bp->b_cylin = bp->b_blkno / (FDC_BSIZE / DEV_BSIZE) / fd->sc_type->seccyl; #ifdef FD_DEBUG if (fdc_debug > 1) printf("fdstrategy: b_blkno %d b_bcount %ld blkno %d cylin %ld\n", bp->b_blkno, bp->b_bcount, fd->sc_blkno, (long)bp->b_cylin); #endif /* Queue transfer on drive, activate drive and controller if idle. */ s = splbio(); disksort(&fd->sc_q, bp); timeout_del(&fd->fd_motor_off_to); /* a good idea */ if (!fd->sc_q.b_active) fdstart(fd); #ifdef DIAGNOSTIC else { struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; if (fdc->sc_state == DEVIDLE) { printf("fdstrategy: controller inactive\n"); fdcstart(fdc); } } #endif splx(s); return; bad: bp->b_flags |= B_ERROR; done: /* Toss transfer; we're done early. */ s = splbio(); biodone(bp); splx(s); } void fdstart(fd) struct fd_softc *fd; { struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; int active = fdc->sc_drives.tqh_first != 0; /* Link into controller queue. */ fd->sc_q.b_active = 1; TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); /* If controller not already active, start it. */ if (!active) fdcstart(fdc); } void fdfinish(fd, bp) struct fd_softc *fd; struct buf *bp; { struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; /* * Move this drive to the end of the queue to give others a `fair' * chance. We only force a switch if N operations are completed while * another drive is waiting to be serviced, since there is a long motor * startup delay whenever we switch. */ if (fd->sc_drivechain.tqe_next && ++fd->sc_ops >= 8) { fd->sc_ops = 0; TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); if (bp->b_actf) { TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); } else fd->sc_q.b_active = 0; } bp->b_resid = fd->sc_bcount; fd->sc_skip = 0; fd->sc_q.b_actf = bp->b_actf; biodone(bp); /* turn off motor 5s from now */ timeout_add(&fd->fd_motor_off_to, 5 * hz); fdc->sc_state = DEVIDLE; } void fdc_reset(fdc) struct fdc_softc *fdc; { if (fdc->sc_flags & FDC_82077) { *fdc->sc_reg_dor = FDO_FDMAEN | FDO_MOEN(0); } *fdc->sc_reg_drs = DRS_RESET; delay(10); *fdc->sc_reg_drs = 0; if (fdc->sc_flags & FDC_82077) { *fdc->sc_reg_dor = FDO_FRST | FDO_FDMAEN | FDO_DS; } #ifdef FD_DEBUG if (fdc_debug) printf("fdc reset\n"); #endif } void fd_set_motor(fdc) struct fdc_softc *fdc; { struct fd_softc *fd; u_char status; int n; if (fdc->sc_flags & FDC_82077) { status = FDO_FRST | FDO_FDMAEN; if ((fd = fdc->sc_drives.tqh_first) != NULL) status |= fd->sc_drive; for (n = 0; n < 4; n++) if ((fd = fdc->sc_fd[n]) && (fd->sc_flags & FD_MOTOR)) status |= FDO_MOEN(n); *fdc->sc_reg_dor = status; } else { int on = 0; for (n = 0; n < 4; n++) if ((fd = fdc->sc_fd[n]) && (fd->sc_flags & FD_MOTOR)) on = 1; if (on) { auxregbisc(AUXIO4C_FDS, 0); } else { auxregbisc(0, AUXIO4C_FDS); } } } void fd_motor_off(arg) void *arg; { struct fd_softc *fd = arg; int s; s = splbio(); fd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); fd_set_motor((struct fdc_softc *)fd->sc_dv.dv_parent); splx(s); } void fd_motor_on(arg) void *arg; { struct fd_softc *fd = arg; struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; int s; s = splbio(); fd->sc_flags &= ~FD_MOTOR_WAIT; if ((fdc->sc_drives.tqh_first == fd) && (fdc->sc_state == MOTORWAIT)) (void) fdcstate(fdc); splx(s); } int fdcresult(fdc) struct fdc_softc *fdc; { u_char i; int j = 100000, n = 0; for (; j; j--) { i = *fdc->sc_reg_msr & (NE7_DIO | NE7_RQM | NE7_CB); if (i == NE7_RQM) return (fdc->sc_nstat = n); if (i == (NE7_DIO | NE7_RQM | NE7_CB)) { if (n >= sizeof(fdc->sc_status)) { log(LOG_ERR, "fdcresult: overrun\n"); return (-1); } fdc->sc_status[n++] = *fdc->sc_reg_fifo; } else delay(10); } log(LOG_ERR, "fdcresult: timeout\n"); return (fdc->sc_nstat = -1); } int out_fdc(fdc, x) struct fdc_softc *fdc; u_char x; { int i = 100000; while (((*fdc->sc_reg_msr & (NE7_DIO|NE7_RQM)) != NE7_RQM) && i-- > 0) delay(1); if (i <= 0) return (-1); *fdc->sc_reg_fifo = x; return (0); } int fdopen(dev, flags, fmt, p) dev_t dev; int flags, fmt; struct proc *p; { int unit, pmask; struct fd_softc *fd; struct fd_type *type; unit = FDUNIT(dev); if (unit >= fd_cd.cd_ndevs) return (ENXIO); fd = fd_cd.cd_devs[unit]; if (fd == 0) return (ENXIO); type = fd_dev_to_type(fd, dev); if (type == NULL) return (ENXIO); if ((fd->sc_flags & FD_OPEN) != 0 && fd->sc_type != type) return (EBUSY); fd->sc_type = type; fd->sc_cylin = -1; fd->sc_flags |= FD_OPEN; /* * Only update the disklabel if we're not open anywhere else. */ if (fd->sc_dk.dk_openmask == 0) fdgetdisklabel(dev); pmask = (1 << FDPART(dev)); switch (fmt) { case S_IFCHR: fd->sc_dk.dk_copenmask |= pmask; break; case S_IFBLK: fd->sc_dk.dk_bopenmask |= pmask; break; } fd->sc_dk.dk_openmask = fd->sc_dk.dk_copenmask | fd->sc_dk.dk_bopenmask; return (0); } int fdclose(dev, flags, fmt, p) dev_t dev; int flags, fmt; struct proc *p; { struct fd_softc *fd = fd_cd.cd_devs[FDUNIT(dev)]; int pmask = (1 << FDPART(dev)); fd->sc_flags &= ~FD_OPEN; fd->sc_opts &= ~(FDOPT_NORETRY|FDOPT_SILENT); switch (fmt) { case S_IFCHR: fd->sc_dk.dk_copenmask &= ~pmask; break; case S_IFBLK: fd->sc_dk.dk_bopenmask &= ~pmask; break; } fd->sc_dk.dk_openmask = fd->sc_dk.dk_copenmask | fd->sc_dk.dk_bopenmask; return (0); } int fdread(dev, uio, flag) dev_t dev; struct uio *uio; int flag; { return (physio(fdstrategy, NULL, dev, B_READ, minphys, uio)); } int fdwrite(dev, uio, flag) dev_t dev; struct uio *uio; int flag; { return (physio(fdstrategy, NULL, dev, B_WRITE, minphys, uio)); } void fdcstart(fdc) struct fdc_softc *fdc; { #ifdef DIAGNOSTIC /* only got here if controller's drive queue was inactive; should be in idle state */ if (fdc->sc_state != DEVIDLE) { printf("fdcstart: not idle\n"); return; } #endif (void) fdcstate(fdc); } void fdcstatus(dv, n, s) struct device *dv; int n; char *s; { struct fdc_softc *fdc = (void *)dv->dv_parent; #if 0 /* * A 82072 seems to return on * gratuitous Sense Interrupt commands. */ if (n == 0 && (fdc->sc_flags & FDC_82077)) { out_fdc(fdc, NE7CMD_SENSEI); (void) fdcresult(fdc); n = 2; } #endif /* Just print last status */ n = fdc->sc_nstat; printf("%s: %s: state %d", dv->dv_xname, s, fdc->sc_state); switch (n) { case 0: printf("\n"); break; case 2: printf(" (st0 %b cyl %d)\n", fdc->sc_status[0], NE7_ST0BITS, fdc->sc_status[1]); break; case 7: printf(" (st0 %b st1 %b st2 %b cyl %d head %d sec %d)\n", fdc->sc_status[0], NE7_ST0BITS, fdc->sc_status[1], NE7_ST1BITS, fdc->sc_status[2], NE7_ST2BITS, fdc->sc_status[3], fdc->sc_status[4], fdc->sc_status[5]); break; #ifdef DIAGNOSTIC default: printf(" fdcstatus: weird size: %d\n", n); break; #endif } } void fdctimeout(arg) void *arg; { struct fdc_softc *fdc = arg; struct fd_softc *fd = fdc->sc_drives.tqh_first; int s; s = splbio(); fdcstatus(&fd->sc_dv, 0, "timeout"); if (fd->sc_q.b_actf) fdc->sc_state++; else fdc->sc_state = DEVIDLE; (void) fdcstate(fdc); splx(s); } void fdcpseudointr(arg) void *arg; { struct fdc_softc *fdc = arg; int s; /* Just ensure it has the right spl. */ s = splbio(); (void) fdcstate(fdc); splx(s); } #ifdef FDC_C_HANDLER /* * hardware interrupt entry point: must be converted to `fast' * (in-window) handler. */ int fdchwintr(fdc) struct fdc_softc *fdc; { switch (fdc->sc_istate) { case ISTATE_IDLE: return (0); case ISTATE_SENSEI: out_fdc(fdc, NE7CMD_SENSEI); fdcresult(fdc); fdc->sc_istate = ISTATE_IDLE; FD_SET_SWINTR; goto done; case ISTATE_SPURIOUS: fdcresult(fdc); fdc->sc_istate = ISTATE_SPURIOUS; printf("fdc: stray hard interrupt... "); FD_SET_SWINTR; goto done; case ISTATE_DMA: break; default: printf("fdc: goofed ...\n"); goto done; } for (;;) { register int msr; msr = *fdc->sc_reg_msr; if ((msr & NE7_RQM) == 0) break; if ((msr & NE7_NDM) == 0) { fdcresult(fdc); fdc->sc_istate = ISTATE_IDLE; FD_SET_SWINTR; printf("fdc: overrun: tc = %d\n", fdc->sc_tc); break; } if (msr & NE7_DIO) { *fdc->sc_data++ = *fdc->sc_reg_fifo; } else { *fdc->sc_reg_fifo = *fdc->sc_data++; } if (--fdc->sc_tc == 0) { fdc->sc_istate = ISTATE_DONE; FTC_FLIP; fdcresult(fdc); FD_SET_SWINTR; break; } } done: fdc->sc_intrcnt.ev_count++; return (1); } #endif int fdcswintr(fdc) struct fdc_softc *fdc; { int s; if (fdc->sc_istate != ISTATE_DONE) return (0); fdc->sc_istate = ISTATE_IDLE; s = splbio(); fdcstate(fdc); splx(s); return (1); } int fdcstate(fdc) struct fdc_softc *fdc; { #define st0 fdc->sc_status[0] #define st1 fdc->sc_status[1] #define cyl fdc->sc_status[1] #define OUT_FDC(fdc, c, s) \ do { if (out_fdc(fdc, (c))) { (fdc)->sc_state = (s); goto loop; } } while(0) struct fd_softc *fd; struct buf *bp; int read, head, sec, nblks; struct fd_type *type; struct fd_formb *finfo = NULL; if (fdc->sc_istate != ISTATE_IDLE) { /* Trouble... */ printf("fdc: spurious interrupt: state %d, istate=%d\n", fdc->sc_state, fdc->sc_istate); fdc->sc_istate = ISTATE_IDLE; if (fdc->sc_state == RESETCOMPLETE || fdc->sc_state == RESETTIMEDOUT) { panic("fdcintr: spurious interrupt can't be cleared"); } goto doreset; } loop: /* Is there a drive for the controller to do a transfer with? */ fd = fdc->sc_drives.tqh_first; if (fd == NULL) { fdc->sc_state = DEVIDLE; return (0); } /* Is there a transfer to this drive? If not, deactivate drive. */ bp = fd->sc_q.b_actf; if (bp == NULL) { fd->sc_ops = 0; TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); fd->sc_q.b_active = 0; goto loop; } if (bp->b_flags & B_FORMAT) finfo = (struct fd_formb *)bp->b_data; switch (fdc->sc_state) { case DEVIDLE: fdc->sc_errors = 0; fd->sc_skip = 0; fd->sc_bcount = bp->b_bcount; fd->sc_blkno = bp->b_blkno / (FDC_BSIZE / DEV_BSIZE); timeout_del(&fd->fd_motor_off_to); if ((fd->sc_flags & FD_MOTOR_WAIT) != 0) { fdc->sc_state = MOTORWAIT; return (1); } if ((fd->sc_flags & FD_MOTOR) == 0) { /* Turn on the motor, being careful about pairing. */ struct fd_softc *ofd = fdc->sc_fd[fd->sc_drive ^ 1]; if (ofd && ofd->sc_flags & FD_MOTOR) { timeout_del(&ofd->fd_motor_off_to); ofd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); } fd->sc_flags |= FD_MOTOR | FD_MOTOR_WAIT; fd_set_motor(fdc); fdc->sc_state = MOTORWAIT; if (fdc->sc_flags & FDC_82077) { /* XXX */ /* Allow .25s for motor to stabilize. */ timeout_add(&fd->fd_motor_on_to, hz / 4); } else { fd->sc_flags &= ~FD_MOTOR_WAIT; goto loop; } return (1); } /* Make sure the right drive is selected. */ fd_set_motor(fdc); /*FALLTHROUGH*/ case DOSEEK: doseek: if ((fdc->sc_flags & FDC_EIS) && (bp->b_flags & B_FORMAT) == 0) { fd->sc_cylin = bp->b_cylin; /* We use implied seek */ goto doio; } if (fd->sc_cylin == bp->b_cylin) goto doio; /* specify command */ OUT_FDC(fdc, NE7CMD_SPECIFY, SEEKTIMEDOUT); OUT_FDC(fdc, fd->sc_type->steprate, SEEKTIMEDOUT); /* XXX head load time == 6ms */ OUT_FDC(fdc, 6 | NE7_SPECIFY_NODMA, SEEKTIMEDOUT); fdc->sc_istate = ISTATE_SENSEI; /* seek function */ OUT_FDC(fdc, NE7CMD_SEEK, SEEKTIMEDOUT); OUT_FDC(fdc, fd->sc_drive, SEEKTIMEDOUT); /* drive number */ OUT_FDC(fdc, bp->b_cylin * fd->sc_type->step, SEEKTIMEDOUT); fd->sc_cylin = -1; fdc->sc_state = SEEKWAIT; fdc->sc_nstat = 0; fd->sc_dk.dk_seek++; disk_busy(&fd->sc_dk); timeout_add(&fdc->fdctimeout_to, 4 * hz); return (1); case DOIO: doio: if (finfo != NULL) fd->sc_skip = (char *)&(finfo->fd_formb_cylno(0)) - (char *)finfo; type = fd->sc_type; sec = fd->sc_blkno % type->seccyl; nblks = type->seccyl - sec; nblks = min(nblks, fd->sc_bcount / FDC_BSIZE); nblks = min(nblks, FDC_MAXIOSIZE / FDC_BSIZE); fd->sc_nblks = nblks; fd->sc_nbytes = finfo ? bp->b_bcount : nblks * FDC_BSIZE; head = sec / type->sectrac; sec -= head * type->sectrac; #ifdef DIAGNOSTIC {int block; block = (fd->sc_cylin * type->heads + head) * type->sectrac + sec; if (block != fd->sc_blkno) { printf("fdcintr: block %d != blkno %d\n", block, fd->sc_blkno); #ifdef DDB Debugger(); #endif }} #endif read = bp->b_flags & B_READ; /* Setup for pseudo DMA */ fdc->sc_data = bp->b_data + fd->sc_skip; fdc->sc_tc = fd->sc_nbytes; *fdc->sc_reg_drs = type->rate; #ifdef FD_DEBUG if (fdc_debug > 1) printf("fdcintr: %s drive %d track %d head %d sec %d nblks %d\n", read ? "read" : "write", fd->sc_drive, fd->sc_cylin, head, sec, nblks); #endif fdc->sc_state = IOCOMPLETE; fdc->sc_istate = ISTATE_DMA; fdc->sc_nstat = 0; if (finfo != NULL) { /* formatting */ OUT_FDC(fdc, NE7CMD_FORMAT, IOTIMEDOUT); OUT_FDC(fdc, (head << 2) | fd->sc_drive, IOTIMEDOUT); OUT_FDC(fdc, finfo->fd_formb_secshift, IOTIMEDOUT); OUT_FDC(fdc, finfo->fd_formb_nsecs, IOTIMEDOUT); OUT_FDC(fdc, finfo->fd_formb_gaplen, IOTIMEDOUT); OUT_FDC(fdc, finfo->fd_formb_fillbyte, IOTIMEDOUT); } else { if (read) OUT_FDC(fdc, NE7CMD_READ, IOTIMEDOUT); else OUT_FDC(fdc, NE7CMD_WRITE, IOTIMEDOUT); OUT_FDC(fdc, (head << 2) | fd->sc_drive, IOTIMEDOUT); OUT_FDC(fdc, fd->sc_cylin, IOTIMEDOUT); /*track*/ OUT_FDC(fdc, head, IOTIMEDOUT); OUT_FDC(fdc, sec + 1, IOTIMEDOUT); /*sector+1*/ OUT_FDC(fdc, type->secsize, IOTIMEDOUT);/*sector size*/ OUT_FDC(fdc, type->sectrac, IOTIMEDOUT);/*secs/track*/ OUT_FDC(fdc, type->gap1, IOTIMEDOUT); /*gap1 size*/ OUT_FDC(fdc, type->datalen, IOTIMEDOUT);/*data length*/ } disk_busy(&fd->sc_dk); /* allow 2 seconds for operation */ timeout_add(&fdc->fdctimeout_to, 2 * hz); return (1); /* will return later */ case SEEKWAIT: timeout_del(&fdc->fdctimeout_to); fdc->sc_state = SEEKCOMPLETE; if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { /* allow 1/50 second for heads to settle */ timeout_add(&fdc->fdcpseudointr_to, hz / 50); return (1); /* will return later */ } /*FALLTHROUGH*/ case SEEKCOMPLETE: disk_unbusy(&fd->sc_dk, 0, 0); /* no data on seek */ /* Make sure seek really happened. */ if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || cyl != bp->b_cylin * fd->sc_type->step) { #ifdef FD_DEBUG if (fdc_debug) fdcstatus(&fd->sc_dv, 2, "seek failed"); #endif fdcretry(fdc); goto loop; } fd->sc_cylin = bp->b_cylin; goto doio; case IOTIMEDOUT: FTC_FLIP; (void)fdcresult(fdc); /*FALLTHROUGH*/ case SEEKTIMEDOUT: case RECALTIMEDOUT: case RESETTIMEDOUT: fdcretry(fdc); goto loop; case IOCOMPLETE: /* IO DONE, post-analyze */ timeout_del(&fdc->fdctimeout_to); disk_unbusy(&fd->sc_dk, (bp->b_bcount - bp->b_resid), (bp->b_flags & B_READ)); if (fdc->sc_nstat != 7 || st1 != 0 || ((st0 & 0xf8) != 0 && ((st0 & 0xf8) != 0x20 || (fdc->sc_cfg & CFG_EIS) == 0))) { #ifdef FD_DEBUG if (fdc_debug) { fdcstatus(&fd->sc_dv, 7, bp->b_flags & B_READ ? "read failed" : "write failed"); printf("blkno %d nblks %d nstat %d tc %d\n", fd->sc_blkno, fd->sc_nblks, fdc->sc_nstat, fdc->sc_tc); } #endif if (fdc->sc_nstat == 7 && (st1 & ST1_OVERRUN) == ST1_OVERRUN) { /* * Silently retry overruns if no other * error bit is set. Adjust threshold. */ int thr = fdc->sc_cfg & CFG_THRHLD_MASK; if (thr < 15) { thr++; fdc->sc_cfg &= ~CFG_THRHLD_MASK; fdc->sc_cfg |= (thr & CFG_THRHLD_MASK); #ifdef FD_DEBUG if (fdc_debug) printf("fdc: %d -> threshold\n", thr); #endif fdconf(fdc); fdc->sc_overruns = 0; } if (++fdc->sc_overruns < 3) { fdc->sc_state = DOIO; goto loop; } } fdcretry(fdc); goto loop; } if (fdc->sc_errors) { diskerr(bp, "fd", "soft error", LOG_PRINTF, fd->sc_skip / FDC_BSIZE, (struct disklabel *)NULL); printf("\n"); fdc->sc_errors = 0; } else { if (--fdc->sc_overruns < -20) { int thr = fdc->sc_cfg & CFG_THRHLD_MASK; if (thr > 0) { thr--; fdc->sc_cfg &= ~CFG_THRHLD_MASK; fdc->sc_cfg |= (thr & CFG_THRHLD_MASK); #ifdef FD_DEBUG if (fdc_debug) printf("fdc: %d -> threshold\n", thr); #endif fdconf(fdc); } fdc->sc_overruns = 0; } } fd->sc_blkno += fd->sc_nblks; fd->sc_skip += fd->sc_nbytes; fd->sc_bcount -= fd->sc_nbytes; if (finfo == NULL && fd->sc_bcount > 0) { bp->b_cylin = fd->sc_blkno / fd->sc_type->seccyl; goto doseek; } fdfinish(fd, bp); goto loop; case DORESET: doreset: /* try a reset, keep motor on */ fd_set_motor(fdc); delay(100); fdc_reset(fdc); fdc->sc_nstat = 0; fdc->sc_istate = ISTATE_SENSEI; fdc->sc_state = RESETCOMPLETE; timeout_add(&fdc->fdctimeout_to, hz / 2); return (1); /* will return later */ case RESETCOMPLETE: timeout_del(&fdc->fdctimeout_to); fdconf(fdc); /* fall through */ case DORECAL: fdc->sc_state = RECALWAIT; fdc->sc_istate = ISTATE_SENSEI; fdc->sc_nstat = 0; /* recalibrate function */ OUT_FDC(fdc, NE7CMD_RECAL, RECALTIMEDOUT); OUT_FDC(fdc, fd->sc_drive, RECALTIMEDOUT); timeout_add(&fdc->fdctimeout_to, 5 * hz); return (1); /* will return later */ case RECALWAIT: timeout_del(&fdc->fdctimeout_to); fdc->sc_state = RECALCOMPLETE; if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { /* allow 1/30 second for heads to settle */ timeout_add(&fdc->fdcpseudointr_to, hz / 30); return (1); /* will return later */ } case RECALCOMPLETE: if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || cyl != 0) { #ifdef FD_DEBUG if (fdc_debug) fdcstatus(&fd->sc_dv, 2, "recalibrate failed"); #endif fdcretry(fdc); goto loop; } fd->sc_cylin = 0; goto doseek; case MOTORWAIT: if (fd->sc_flags & FD_MOTOR_WAIT) return (1); /* time's not up yet */ goto doseek; default: fdcstatus(&fd->sc_dv, 0, "stray interrupt"); return (1); } #ifdef DIAGNOSTIC panic("fdcintr: impossible"); #endif #undef st0 #undef st1 #undef cyl } void fdcretry(fdc) struct fdc_softc *fdc; { struct fd_softc *fd; struct buf *bp; fd = fdc->sc_drives.tqh_first; bp = fd->sc_q.b_actf; fdc->sc_overruns = 0; if (fd->sc_opts & FDOPT_NORETRY) goto fail; switch (fdc->sc_errors) { case 0: /* try again */ fdc->sc_state = (fdc->sc_flags & FDC_EIS) ? DOIO : DOSEEK; break; case 1: case 2: case 3: /* didn't work; try recalibrating */ fdc->sc_state = DORECAL; break; case 4: /* still no go; reset the bastard */ fdc->sc_state = DORESET; break; default: fail: if ((fd->sc_opts & FDOPT_SILENT) == 0) { diskerr(bp, "fd", "hard error", LOG_PRINTF, fd->sc_skip / FDC_BSIZE, (struct disklabel *)NULL); printf(" (st0 %b st1 %b st2 %b cyl %d head %d sec %d)\n", fdc->sc_status[0], NE7_ST0BITS, fdc->sc_status[1], NE7_ST1BITS, fdc->sc_status[2], NE7_ST2BITS, fdc->sc_status[3], fdc->sc_status[4], fdc->sc_status[5]); } bp->b_flags |= B_ERROR; bp->b_error = EIO; fdfinish(fd, bp); } fdc->sc_errors++; } int fdsize(dev) dev_t dev; { /* Swapping to floppies would not make sense. */ return (-1); } int fddump(dev, blkno, va, size) dev_t dev; daddr_t blkno; caddr_t va; size_t size; { /* Not implemented. */ return (EINVAL); } int fdioctl(dev, cmd, addr, flag, p) dev_t dev; u_long cmd; caddr_t addr; int flag; struct proc *p; { struct fd_softc *fd = fd_cd.cd_devs[FDUNIT(dev)]; int error; switch (cmd) { case DIOCGDINFO: *(struct disklabel *)addr = *(fd->sc_dk.dk_label); return 0; case DIOCWLABEL: if ((flag & FWRITE) == 0) return EBADF; /* XXX do something */ return (0); case DIOCWDINFO: if ((flag & FWRITE) == 0) return (EBADF); error = setdisklabel(fd->sc_dk.dk_label, (struct disklabel *)addr, 0, fd->sc_dk.dk_cpulabel); if (error) return (error); error = writedisklabel(dev, fdstrategy, fd->sc_dk.dk_label, fd->sc_dk.dk_cpulabel); return (error); case DIOCLOCK: /* * Nothing to do here, really. */ return (0); case MTIOCTOP: if (((struct mtop *)addr)->mt_op != MTOFFL) return EIO; case DIOCEJECT: fd_do_eject(fd); return (0); case FD_FORM: if((flag & FWRITE) == 0) return EBADF; /* must be opened for writing */ else if(((struct fd_formb *)addr)->format_version != FD_FORMAT_VERSION) return EINVAL; /* wrong version of formatting prog */ else return fdformat(dev, (struct fd_formb *)addr, p); break; case FD_GTYPE: /* get drive type */ *(struct fd_type *)addr = *fd->sc_type; return (0); case FD_GOPTS: /* get drive options */ *(int *)addr = fd->sc_opts; return (0); case FD_SOPTS: /* set drive options */ fd->sc_opts = *(int *)addr; return (0); #ifdef DEBUG case _IO('f', 100): { int i; struct fdc_softc *fdc = (struct fdc_softc *) fd->sc_dv.dv_parent; out_fdc(fdc, NE7CMD_DUMPREG); fdcresult(fdc); printf("dumpreg(%d regs): <", fdc->sc_nstat); for (i = 0; i < fdc->sc_nstat; i++) printf(" %x", fdc->sc_status[i]); printf(">\n"); } return (0); case _IOW('f', 101, int): ((struct fdc_softc *)fd->sc_dv.dv_parent)->sc_cfg &= ~CFG_THRHLD_MASK; ((struct fdc_softc *)fd->sc_dv.dv_parent)->sc_cfg |= (*(int *)addr & CFG_THRHLD_MASK); fdconf((struct fdc_softc *) fd->sc_dv.dv_parent); return (0); case _IO('f', 102): { int i; struct fdc_softc *fdc = (struct fdc_softc *) fd->sc_dv.dv_parent; out_fdc(fdc, NE7CMD_SENSEI); fdcresult(fdc); printf("sensei(%d regs): <", fdc->sc_nstat); for (i=0; i< fdc->sc_nstat; i++) printf(" 0x%x", fdc->sc_status[i]); } printf(">\n"); return (0); #endif default: return (ENOTTY); } #ifdef DIAGNOSTIC panic("fdioctl: impossible"); #endif } int fdformat(dev, finfo, p) dev_t dev; struct fd_formb *finfo; struct proc *p; { int rv = 0, s; struct fd_softc *fd = fd_cd.cd_devs[FDUNIT(dev)]; struct fd_type *type = fd->sc_type; struct buf *bp; /* set up a buffer header for fdstrategy() */ bp = (struct buf *)malloc(sizeof(struct buf), M_TEMP, M_NOWAIT); if (bp == 0) return (ENOBUFS); PHOLD(p); bzero((void *)bp, sizeof(struct buf)); bp->b_flags = B_BUSY | B_PHYS | B_FORMAT; bp->b_proc = p; bp->b_dev = dev; /* * Calculate a fake blkno, so fdstrategy() would initiate a * seek to the requested cylinder. */ bp->b_blkno = (finfo->cyl * (type->sectrac * type->heads) + finfo->head * type->sectrac) * FDC_BSIZE / DEV_BSIZE; bp->b_bcount = sizeof(struct fd_idfield_data) * finfo->fd_formb_nsecs; bp->b_data = (caddr_t)finfo; #ifdef FD_DEBUG if (fdc_debug) printf("fdformat: blkno %x count %ld\n", bp->b_blkno, bp->b_bcount); #endif /* now do the format */ fdstrategy(bp); /* ...and wait for it to complete */ s = splbio(); while (!(bp->b_flags & B_DONE)) { rv = tsleep((caddr_t)bp, PRIBIO, "fdform", 20 * hz); if (rv == EWOULDBLOCK) break; } splx(s); if (rv == EWOULDBLOCK) { /* timed out */ rv = EIO; s = splbio(); biodone(bp); splx(s); } if (bp->b_flags & B_ERROR) { rv = bp->b_error; } PRELE(p); free(bp, M_TEMP); return (rv); } void fdgetdisklabel(dev) dev_t dev; { int unit = FDUNIT(dev); struct fd_softc *fd = fd_cd.cd_devs[unit]; struct disklabel *lp = fd->sc_dk.dk_label; struct cpu_disklabel *clp = fd->sc_dk.dk_cpulabel; char *errstring; bzero(lp, sizeof(struct disklabel)); bzero(clp, sizeof(struct cpu_disklabel)); lp->d_secsize = FDC_BSIZE; lp->d_secpercyl = fd->sc_type->seccyl; lp->d_ntracks = fd->sc_type->heads; /* Go figure... */ lp->d_nsectors = fd->sc_type->sectrac; lp->d_ncylinders = fd->sc_type->tracks; strncpy(lp->d_typename, "floppy disk", sizeof(lp->d_typename)); lp->d_type = DTYPE_FLOPPY; strncpy(lp->d_packname, "fictitious", sizeof(lp->d_packname)); lp->d_rpm = 300; /* XXX like it matters... */ lp->d_secperunit = fd->sc_type->size; lp->d_interleave = 1; lp->d_flags = D_REMOVABLE; lp->d_partitions[RAW_PART].p_offset = 0; lp->d_partitions[RAW_PART].p_size = lp->d_secpercyl * lp->d_ncylinders; lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; lp->d_npartitions = RAW_PART + 1; lp->d_magic = DISKMAGIC; lp->d_magic2 = DISKMAGIC; lp->d_checksum = dkcksum(lp); /* * Call the generic disklabel extraction routine. */ errstring = readdisklabel(dev, fdstrategy, lp, clp, 0); if (errstring) { printf("%s: %s\n", fd->sc_dv.dv_xname, errstring); return; } } void fd_do_eject(fd) struct fd_softc *fd; { struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; if (CPU_ISSUN4C) { auxregbisc(AUXIO4C_FDS, AUXIO4C_FEJ); delay(10); auxregbisc(AUXIO4C_FEJ, AUXIO4C_FDS); return; } if (CPU_ISSUN4M && (fdc->sc_flags & FDC_82077)) { int dor = FDO_FRST | FDO_FDMAEN | FDO_MOEN(0); *fdc->sc_reg_dor = dor | FDO_EJ; delay(10); *fdc->sc_reg_dor = FDO_FRST | FDO_DS; return; } } /* * The mountroot_hook is called once the root and swap device have been * established. NULL implies that we may have been the boot device but * haven't been elected for the root device. */ /* ARGSUSED */ void fd_mountroot_hook(dev) struct device *dev; { int c; if (dev) { fd_do_eject((struct fd_softc *)dev); printf("Insert filesystem floppy and press return."); for (;;) { c = cngetc(); if ((c == '\r') || (c == '\n')) { printf("\n"); break; } } } }