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bus_space'fied fd driver by TSUTSUI Izumi, 

works with PICA-61 and Microsoft-Jazz,
but still doesn't work with his NEC-JC94 (NEC Express 5800/230)
due to data overrun.
This commit is contained in:
soda 2001-05-22 03:22:49 +00:00
parent a5a03e13dd
commit 94bba09883
6 changed files with 630 additions and 264 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
sys/arch/arc/conf/files.arc
View File

@ -1,4 +1,4 @@
# $NetBSD: files.arc,v 1.29 2001/04/30 04:52:53 tsutsui Exp $
# $NetBSD: files.arc,v 1.30 2001/05/22 03:22:49 soda Exp $
# $OpenBSD: files.arc,v 1.21 1999/09/11 10:20:20 niklas Exp $
#
# maxpartitions must be first item in files.${ARCH}
@ -123,10 +123,13 @@ file arch/arc/jazz/osiop_jazzio.c osiop_jazzio
# Floppy disk controller on Jazz-internal bus
device fdc {drive = -1}
attach fdc at jazzio
file arch/arc/jazz/fd.c fdc needs-flag
attach fdc at jazzio with fdc_jazzio
file arch/arc/jazz/fdc_jazzio.c fdc_jazzio
device fd: disk
attach fd at fdc
file arch/arc/jazz/fd.c fdc needs-flag
major {fd = 7}
# bus independent raster console glue

11
sys/arch/arc/jazz/dma.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: dma.c,v 1.3 2001/05/15 14:29:17 tsutsui Exp $ */
/* $NetBSD: dma.c,v 1.4 2001/05/22 03:22:50 soda Exp $ */
/* $OpenBSD: dma.c,v 1.5 1998/03/01 16:49:57 niklas Exp $ */
/*
@ -149,7 +149,7 @@ picaDmaStart(sc, addr, size, datain)
regs->dma_mode = sc->mode & R4030_DMA_MODE;
sc->sc_active = 1;
if(datain == DMA_FROM_DEV) {
if (datain == DMA_FROM_DEV) {
sc->mode &= ~DMA_DIR_WRITE;
regs->dma_enab = R4030_DMA_ENAB_RUN | R4030_DMA_ENAB_READ;
}
@ -220,6 +220,7 @@ picaDmaEnd(dma_softc_t *sc)
pDmaReg regs = sc->dma_reg;
/* Halt DMA */
regs->dma_count = 0;
regs->dma_enab = 0;
regs->dma_mode = 0;
sc->sc_active = 0;
@ -251,7 +252,7 @@ asc_dma_init(sc)
sc->end = picaDmaEnd;
sc->dma_reg = (pDmaReg)R4030_SYS_DMA0_REGS;
sc->pte_size = 32;
sc->pte_size = MAXPHYS / JAZZ_DMA_PAGE_SIZE * sizeof(jazz_dma_pte_t);
sc->mode = R4030_DMA_MODE_160NS | R4030_DMA_MODE_16;
picaDmaTLBAlloc(sc);
}
@ -282,8 +283,8 @@ fdc_dma_init(dma_softc_t *sc)
sc->dma_reg = (pDmaReg)R4030_SYS_DMA1_REGS;
break;
}
sc->pte_size = 32;
sc->mode = R4030_DMA_MODE_160NS | R4030_DMA_MODE_8;
sc->pte_size = MAXPHYS / JAZZ_DMA_PAGE_SIZE * sizeof(jazz_dma_pte_t);
sc->mode = R4030_DMA_MODE_320NS | R4030_DMA_MODE_8;
picaDmaTLBAlloc(sc);
}
/*

466
sys/arch/arc/jazz/fd.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: fd.c,v 1.1 2000/12/24 09:25:28 ur Exp $ */
/* $NetBSD: fd.c,v 1.2 2001/05/22 03:22:50 soda Exp $ */
/* $OpenBSD: fd.c,v 1.6 1998/10/03 21:18:57 millert Exp $ */
/* NetBSD: fd.c,v 1.78 1995/07/04 07:23:09 mycroft Exp */
@ -94,69 +94,24 @@
#include <uvm/uvm_extern.h>
#include <dev/cons.h>
#include <machine/bus.h>
#include <machine/cpu.h>
#include <machine/pio.h>
#include <machine/autoconf.h>
#include <mips/locore.h> /* for mips3_HitFlushDCache() */
#include <arc/jazz/fdreg.h>
#include <arc/jazz/jazziovar.h>
#include <arc/jazz/jazzdmatlbreg.h>
#include <arc/jazz/dma.h>
#include <arc/jazz/fdcvar.h>
#include "locators.h"
bdev_decl(fd);
cdev_decl(fd);
#define FDUNIT(dev) ((dev & 0x080) >> 7)
#define FDTYPE(dev) ((minor(dev) & 0x70) >> 4)
#define FDPART(dev) (minor(dev) & 0x0f)
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 callout sc_timo_ch; /* timeout callout */
struct callout sc_intr_ch; /* pseudo-intr callout */
struct dma_softc __dma;
struct dma_softc *dma;
int sc_iobase;
struct fd_softc *sc_fd[4]; /* pointers to children */
TAILQ_HEAD(drivehead, fd_softc) sc_drives;
enum fdc_state sc_state;
int sc_errors; /* number of retries so far */
u_char sc_status[7]; /* copy of registers */
};
#define FDUNIT(dev) DISKUNIT(dev)
#define FDTYPE(dev) DISKPART(dev)
/* controller driver configuration */
int fdcprobe __P((struct device *, struct cfdata *, void *));
void fdcattach __P((struct device *, struct device *, void *));
struct cfattach fdc_ca = {
sizeof(struct fdc_softc), fdcprobe, fdcattach
};
int fdprint(void *, const char *);
/*
* Floppies come in various flavors, e.g., 1.2MB vs 1.44MB; here is how
@ -171,11 +126,11 @@ struct fd_type {
int steprate; /* step rate and head unload time */
int gap1; /* gap len between sectors */
int gap2; /* formatting gap */
int tracks; /* total num of tracks */
int cyls; /* total num of cylinders */
int size; /* size of disk in sectors */
int step; /* steps per cylinder */
int rate; /* transfer speed code */
char *name;
const char *name;
};
/* The order of entries in the following table is important -- BEWARE! */
@ -194,14 +149,16 @@ struct fd_softc {
struct device sc_dev;
struct disk sc_dk;
struct fd_type *sc_deftype; /* default type descriptor */
const struct fd_type *sc_deftype; /* default type descriptor */
struct fd_type *sc_type; /* current type descriptor */
struct fd_type sc_type_copy; /* copy for fiddling when formatting */
struct callout sc_motoron_ch;
struct callout sc_motoroff_ch;
daddr_t sc_blkno; /* starting block number */
int sc_bcount; /* byte count left */
int sc_opts; /* user-set options */
int sc_skip; /* bytes already transferred */
int sc_nblks; /* number of blocks currently tranferring */
int sc_nbytes; /* number of bytes currently tranferring */
@ -213,7 +170,7 @@ struct fd_softc {
#define FD_MOTOR_WAIT 0x04 /* motor coming up */
int sc_cylin; /* where we think the head is */
void *sc_sdhook; /* saved shutdown hook for drive. */
void *sc_sdhook; /* saved shutdown hook for drive. */
TAILQ_ENTRY(fd_softc) sc_drivechain;
int sc_ops; /* I/O ops since last switch */
@ -225,72 +182,41 @@ struct fd_softc {
int fdprobe __P((struct device *, struct cfdata *, void *));
void fdattach __P((struct device *, struct device *, void *));
extern struct cfdriver fd_cd;
struct cfattach fd_ca = {
sizeof(struct fd_softc), fdprobe, fdattach
};
extern struct cfdriver fd_cd;
void fdgetdisklabel __P((struct fd_softc *));
int fd_get_parms __P((struct fd_softc *));
void fdstrategy __P((struct buf *));
void fdstart __P((struct fd_softc *));
int fdioctl __P((dev_t, u_long, caddr_t, int));
int fddump __P((dev_t, daddr_t, caddr_t, size_t));
int fdsize __P((dev_t));
int fdopen __P((dev_t, int));
int fdclose __P((dev_t, int));
int fdwrite __P((dev_t, struct uio *));
int fdread __P((dev_t, struct uio *));
void fdgetdisklabel(struct fd_softc *);
int fd_get_parms(struct fd_softc *);
void fdstrategy(struct buf *);
void fdstart(struct fd_softc *);
struct dkdriver fddkdriver = { fdstrategy };
int fdprint __P((void *, const char *));
struct fd_type *fd_nvtotype __P((char *, int, int));
void fd_set_motor __P((struct fdc_softc *fdc, int reset));
void fd_motor_off __P((void *arg));
void fd_motor_on __P((void *arg));
int fdcresult __P((struct fdc_softc *fdc));
int out_fdc __P((int iobase, u_char x));
void fdcstart __P((struct fdc_softc *fdc));
void fdcstatus __P((struct device *dv, int n, char *s));
void fdctimeout __P((void *arg));
void fdcpseudointr __P((void *arg));
int fdcintr __P((void *));
void fdcretry __P((struct fdc_softc *fdc));
void fdfinish __P((struct fd_softc *fd, struct buf *bp));
int
fdcprobe(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct jazzio_attach_args *ja = aux;
int iobase = ja->ja_addr;
if (strcmp(ja->ja_name, "fdc") != 0)
return (0);
/* reset */
outb(iobase + fdout, 0);
delay(100);
outb(iobase + fdout, FDO_FRST);
/* see if it can handle a command */
if (out_fdc(iobase, NE7CMD_SPECIFY) < 0)
return 0;
out_fdc(iobase, 0xdf);
out_fdc(iobase, 2);
return 1;
}
#if 0
const struct fd_type *fd_nvtotype(char *, int, int);
#endif
void fd_set_motor(struct fdc_softc *fdc, int reset);
void fd_motor_off(void *arg);
void fd_motor_on(void *arg);
int fdcresult(struct fdc_softc *fdc);
void fdcstart(struct fdc_softc *fdc);
void fdcstatus(struct device *dv, int n, char *s);
void fdctimeout(void *arg);
void fdcpseudointr(void *arg);
void fdcretry(struct fdc_softc *fdc);
void fdfinish(struct fd_softc *fd, struct buf *bp);
__inline const struct fd_type *fd_dev_to_type(struct fd_softc *, dev_t);
void fd_mountroot_hook(struct device *);
/*
* Arguments passed between fdcattach and fdprobe.
*/
struct fdc_attach_args {
int fa_drive;
struct fd_type *fa_deftype;
const struct fd_type *fa_deftype;
};
/*
@ -313,28 +239,21 @@ fdprint(aux, fdc)
}
void
fdcattach(parent, self, aux)
struct device *parent, *self;
void *aux;
fdcattach(fdc)
struct fdc_softc *fdc;
{
struct fdc_softc *fdc = (void *)self;
struct jazzio_attach_args *ja = aux;
struct fdc_attach_args fa;
bus_space_tag_t iot;
bus_space_handle_t ioh;
int type;
fdc->sc_iobase = ja->ja_addr;
fdc->sc_state = DEVIDLE;
TAILQ_INIT(&fdc->sc_drives);
fdc->dma = &fdc->__dma;
fdc_dma_init(fdc->dma);
printf("\n");
iot = fdc->sc_iot;
ioh = fdc->sc_ioh;
callout_init(&fdc->sc_timo_ch);
callout_init(&fdc->sc_intr_ch);
jazzio_intr_establish(ja->ja_intr, fdcintr, fdc);
fdc->sc_state = DEVIDLE;
TAILQ_INIT(&fdc->sc_drives);
/*
* No way yet to determine default disk types.
@ -344,12 +263,8 @@ fdcattach(parent, self, aux)
/* physical limit: two drives per controller. */
for (fa.fa_drive = 0; fa.fa_drive < 2; fa.fa_drive++) {
if (type >= 0 && fa.fa_drive < 2)
fa.fa_deftype = fd_nvtotype(fdc->sc_dev.dv_xname,
type, fa.fa_drive);
else
fa.fa_deftype = NULL; /* unknown */
(void)config_found(self, (void *)&fa, fdprint);
fa.fa_deftype = &fd_types[type];
(void)config_found(&fdc->sc_dev, (void *)&fa, fdprint);
}
}
@ -360,24 +275,26 @@ fdprobe(parent, match, aux)
void *aux;
{
struct fdc_softc *fdc = (void *)parent;
struct cfdata *cf = match;
struct fdc_attach_args *fa = aux;
int drive = fa->fa_drive;
int iobase = fdc->sc_iobase;
bus_space_tag_t iot = fdc->sc_iot;
bus_space_handle_t ioh = fdc->sc_ioh;
int n;
if (match->cf_loc[FDCCF_DRIVE] != FDCCF_DRIVE_DEFAULT &&
match->cf_loc[FDCCF_DRIVE] != drive)
if (cf->cf_loc[FDCCF_DRIVE] != FDCCF_DRIVE_DEFAULT &&
cf->cf_loc[FDCCF_DRIVE] != drive)
return 0;
/* select drive and turn on motor */
outb(iobase + fdout, drive | FDO_FRST | FDO_MOEN(drive));
bus_space_write_1(iot, ioh, FDOUT, drive | FDO_FRST | FDO_MOEN(drive));
/* wait for motor to spin up */
delay(500000);
out_fdc(iobase, NE7CMD_RECAL);
out_fdc(iobase, drive);
delay(250000);
out_fdc(iot, ioh, NE7CMD_RECAL);
out_fdc(iot, ioh, drive);
/* wait for recalibrate */
delay(2000000);
out_fdc(iobase, NE7CMD_SENSEI);
out_fdc(iot, ioh, NE7CMD_SENSEI);
n = fdcresult(fdc);
#ifdef FD_DEBUG
{
@ -391,7 +308,7 @@ fdprobe(parent, match, aux)
if (n != 2 || (fdc->sc_status[0] & 0xf8) != 0x20)
return 0;
/* turn off motor */
outb(iobase + fdout, FDO_FRST);
bus_space_write_1(iot, ioh, FDOUT, FDO_FRST);
return 1;
}
@ -407,7 +324,7 @@ fdattach(parent, self, 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;
const struct fd_type *type = fa->fa_deftype;
int drive = fa->fa_drive;
callout_init(&fd->sc_motoron_ch);
@ -416,8 +333,8 @@ fdattach(parent, self, aux)
/* 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);
printf(": %s, %d cyl, %d head, %d sec\n", type->name,
type->cyls, type->heads, type->sectrac);
else
printf(": density unknown\n");
@ -426,18 +343,27 @@ fdattach(parent, self, aux)
fd->sc_drive = drive;
fd->sc_deftype = type;
fdc->sc_fd[drive] = fd;
/*
* Initialize and attach the disk structure.
*/
fd->sc_dk.dk_name = fd->sc_dev.dv_xname;
fd->sc_dk.dk_driver = &fddkdriver;
disk_attach(&fd->sc_dk);
/* Establish a mountroot hook. */
mountroothook_establish(fd_mountroot_hook, &fd->sc_dev);
/* Needed to power off if the motor is on when we halt. */
fd->sc_sdhook = shutdownhook_establish(fd_motor_off, fd);
}
#if 0
/*
* Translate nvram type into internal data structure. Return NULL for
* none/unknown/unusable.
*/
struct fd_type *
const struct fd_type *
fd_nvtotype(fdc, nvraminfo, drive)
char *fdc;
int nvraminfo, drive;
@ -469,20 +395,30 @@ fd_nvtotype(fdc, nvraminfo, drive)
return &fd_types[0]; /* Use only 1.44 for now */
#endif
}
#endif
__inline const 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);
struct fd_softc *fd = device_lookup(&fd_cd, 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 ||
if (bp->b_blkno < 0 ||
(bp->b_bcount % FDC_BSIZE) != 0) {
bp->b_error = EINVAL;
goto bad;
@ -498,7 +434,6 @@ fdstrategy(bp)
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) {
@ -511,10 +446,11 @@ fdstrategy(bp)
}
bp->b_rawblkno = bp->b_blkno;
bp->b_cylinder = bp->b_blkno / (FDC_BSIZE / DEV_BSIZE) / fd->sc_type->seccyl;
bp->b_cylinder =
bp->b_blkno / (FDC_BSIZE / DEV_BSIZE) / fd->sc_type->seccyl;
#ifdef FD_DEBUG
printf("fdstrategy: b_blkno %d b_bcount %d blkno %d cylin %d sz %d\n",
printf("fdstrategy: b_blkno %d b_bcount %ld blkno %d cylin %ld sz %d\n",
bp->b_blkno, bp->b_bcount, fd->sc_blkno, bp->b_cylinder, sz);
#endif
@ -540,6 +476,7 @@ bad:
bp->b_flags |= B_ERROR;
done:
/* Toss transfer; we're done early. */
bp->b_resid = bp->b_bcount;
biodone(bp);
}
@ -575,9 +512,9 @@ fdfinish(fd, bp)
if (fd->sc_drivechain.tqe_next && ++fd->sc_ops >= 8) {
fd->sc_ops = 0;
TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain);
if (BUFQ_NEXT(bp) != NULL) {
if (BUFQ_NEXT(bp) != NULL)
TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain);
} else
else
fd->sc_active = 0;
}
bp->b_resid = fd->sc_bcount;
@ -585,23 +522,25 @@ fdfinish(fd, bp)
BUFQ_REMOVE(&fd->sc_q, bp);
biodone(bp);
/* turn off motor 5s from now */
callout_reset(&fd->sc_motoroff_ch, 10 * hz, fd_motor_off, fd);
callout_reset(&fd->sc_motoroff_ch, 5 * hz, fd_motor_off, fd);
fdc->sc_state = DEVIDLE;
}
int
fdread(dev, uio)
fdread(dev, uio, flags)
dev_t dev;
struct uio *uio;
int flags;
{
return (physio(fdstrategy, NULL, dev, B_READ, minphys, uio));
}
int
fdwrite(dev, uio)
fdwrite(dev, uio, flags)
dev_t dev;
struct uio *uio;
int flags;
{
return (physio(fdstrategy, NULL, dev, B_WRITE, minphys, uio));
@ -625,7 +564,7 @@ fd_set_motor(fdc, reset)
for (n = 0; n < 4; n++)
if ((fd = fdc->sc_fd[n]) && (fd->sc_flags & FD_MOTOR))
status |= FDO_MOEN(n);
outb(fdc->sc_iobase + fdout, status);
bus_space_write_1(fdc->sc_iot, fdc->sc_ioh, FDOUT, status);
}
void
@ -660,76 +599,73 @@ int
fdcresult(fdc)
struct fdc_softc *fdc;
{
int iobase = fdc->sc_iobase;
bus_space_tag_t iot = fdc->sc_iot;
bus_space_handle_t ioh = fdc->sc_ioh;
u_char i;
int j = 400000, /* Empirical, should do at 150 Mhz to */
int j = 100000,
n = 0;
for (; j; --j) {
i = inb(iobase + fdsts) & (NE7_DIO | NE7_RQM | NE7_CB);
if (i == NE7_RQM) {
for (; j; j--) {
i = bus_space_read_1(iot, ioh, FDSTS) &
(NE7_DIO | NE7_RQM | NE7_CB);
if (i == NE7_RQM)
return 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++] = inb(iobase + fddata);
fdc->sc_status[n++] =
bus_space_read_1(iot, ioh, FDDATA);
}
delay(10);
}
log(LOG_ERR, "fdcresult: timeout\n");
return -1;
}
int
out_fdc(iobase, x)
int iobase;
out_fdc(iot, ioh, x)
bus_space_tag_t iot;
bus_space_handle_t ioh;
u_char x;
{
int i = 100000;
while ((inb(iobase + fdsts) & NE7_DIO) && i-- > 0);
while ((bus_space_read_1(iot, ioh, FDSTS) & NE7_DIO) && i-- > 0);
if (i <= 0)
return -1;
while ((inb(iobase + fdsts) & NE7_RQM) == 0 && i-- > 0);
while ((bus_space_read_1(iot, ioh, FDSTS) & NE7_RQM) == 0 && i-- > 0);
if (i <= 0)
return -1;
outb(iobase + fddata, x);
bus_space_write_1(iot, ioh, FDDATA, x);
return 0;
}
int
fdopen(dev, flags)
fdopen(dev, flags, mode, p)
dev_t dev;
int flags;
int mode;
struct proc *p;
{
int unit;
struct fd_softc *fd;
struct fd_type *type;
const struct fd_type *type;
unit = FDUNIT(dev);
if (unit >= fd_cd.cd_ndevs)
return ENXIO;
fd = fd_cd.cd_devs[unit];
if (fd == 0)
fd = device_lookup(&fd_cd, FDUNIT(dev));
if (fd == NULL)
return ENXIO;
if (FDTYPE(dev) > (sizeof(fd_types) / sizeof(fd_types[0])))
type = NULL;
else if(FDTYPE(dev))
type = &fd_types[FDTYPE(dev) - 1];
else
type = fd->sc_deftype;
type = fd_dev_to_type(fd, dev);
if (type == NULL)
return ENXIO;
if ((fd->sc_flags & FD_OPEN) != 0 &&
fd->sc_type != type)
memcmp(fd->sc_type, type, sizeof(*type)))
return EBUSY;
fd->sc_type = type;
fd->sc_type_copy = *type;
fd->sc_type = &fd->sc_type_copy;
fd->sc_cylin = -1;
fd->sc_flags |= FD_OPEN;
@ -737,11 +673,13 @@ fdopen(dev, flags)
}
int
fdclose(dev, flags)
fdclose(dev, flags, mode, p)
dev_t dev;
int flags;
int mode;
struct proc *p;
{
struct fd_softc *fd = fd_cd.cd_devs[FDUNIT(dev)];
struct fd_softc *fd = device_lookup(&fd_cd, FDUNIT(dev));
fd->sc_flags &= ~FD_OPEN;
return 0;
@ -773,7 +711,7 @@ fdcstatus(dv, n, s)
char bits[64];
if (n == 0) {
out_fdc(fdc->sc_iobase, NE7CMD_SENSEI);
out_fdc(fdc->sc_iot, fdc->sc_ioh, NE7CMD_SENSEI);
(void) fdcresult(fdc);
n = 2;
}
@ -786,8 +724,8 @@ fdcstatus(dv, n, s)
break;
case 2:
printf(" (st0 %s cyl %d)\n",
bitmask_snprintf(fdc->sc_status[0], NE7_ST0BITS,
bits, sizeof(bits)), fdc->sc_status[1]);
bitmask_snprintf(fdc->sc_status[0], NE7_ST0BITS,
bits, sizeof(bits)), fdc->sc_status[1]);
break;
case 7:
printf(" (st0 %s", bitmask_snprintf(fdc->sc_status[0],
@ -816,6 +754,9 @@ fdctimeout(arg)
int s;
s = splbio();
#ifdef DEBUG
log(LOG_ERR, "fdctimeout: state %d\n", fdc->sc_state);
#endif
fdcstatus(&fd->sc_dev, 0, "timeout");
if (BUFQ_FIRST(&fd->sc_q) != NULL)
@ -848,7 +789,8 @@ fdcintr(arg)
#define cyl fdc->sc_status[1]
struct fd_softc *fd;
struct buf *bp;
int iobase = fdc->sc_iobase;
bus_space_tag_t iot = fdc->sc_iot;
bus_space_handle_t ioh = fdc->sc_ioh;
int read, head, sec, i, nblks;
struct fd_type *type;
@ -890,8 +832,8 @@ loop:
fd->sc_flags |= FD_MOTOR | FD_MOTOR_WAIT;
fd_set_motor(fdc, 0);
fdc->sc_state = MOTORWAIT;
/* Allow .5s for motor to stabilize. */
callout_reset(&fd->sc_motoron_ch, hz / 2,
/* Allow .25s for motor to stabilize. */
callout_reset(&fd->sc_motoron_ch, hz / 4,
fd_motor_on, fd);
return 1;
}
@ -904,16 +846,20 @@ loop:
if (fd->sc_cylin == bp->b_cylinder)
goto doio;
out_fdc(iobase, NE7CMD_SPECIFY);/* specify command */
out_fdc(iobase, fd->sc_type->steprate);
out_fdc(iobase, 6); /* XXX head load time == 6ms */
out_fdc(iot, ioh, NE7CMD_SPECIFY);/* specify command */
out_fdc(iot, ioh, fd->sc_type->steprate);
out_fdc(iot, ioh, 6); /* XXX head load time == 6ms */
out_fdc(iobase, NE7CMD_SEEK); /* seek function */
out_fdc(iobase, fd->sc_drive); /* drive number */
out_fdc(iobase, bp->b_cylinder * fd->sc_type->step);
out_fdc(iot, ioh, NE7CMD_SEEK); /* seek function */
out_fdc(iot, ioh, fd->sc_drive); /* drive number */
out_fdc(iot, ioh, bp->b_cylinder * fd->sc_type->step);
fd->sc_cylin = -1;
fdc->sc_state = SEEKWAIT;
fd->sc_dk.dk_seek++;
disk_busy(&fd->sc_dk);
callout_reset(&fdc->sc_timo_ch, 4 * hz, fdctimeout, fdc);
return 1;
@ -923,44 +869,50 @@ loop:
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);
nblks = min(nblks, fdc->sc_maxiosize / FDC_BSIZE);
fd->sc_nblks = nblks;
fd->sc_nbytes = 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);
{
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();
Debugger();
#endif
}}
}
}
#endif
mips3_FlushDCache((vaddr_t) (bp->b_data + fd->sc_skip),
(vsize_t) fd->sc_nbytes);
read = bp->b_flags & B_READ ? DMA_FROM_DEV : DMA_TO_DEV;
DMA_START(fdc->dma, bp->b_data + fd->sc_skip, fd->sc_nbytes, read);
outb(iobase + fdctl, type->rate);
read = (bp->b_flags & B_READ) != 0;
FDCDMA_START(fdc, bp->b_data + fd->sc_skip,
fd->sc_nbytes, read);
bus_space_write_1(iot, ioh, FDCTL, type->rate);
#ifdef FD_DEBUG
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
if (read)
out_fdc(iobase, NE7CMD_READ); /* READ */
out_fdc(iot, ioh, NE7CMD_READ); /* READ */
else
out_fdc(iobase, NE7CMD_WRITE); /* WRITE */
out_fdc(iobase, (head << 2) | fd->sc_drive);
out_fdc(iobase, fd->sc_cylin); /* track */
out_fdc(iobase, head);
out_fdc(iobase, sec + 1); /* sector +1 */
out_fdc(iobase, type->secsize); /* sector size */
out_fdc(iobase, type->sectrac); /* sectors/track */
out_fdc(iobase, type->gap1); /* gap1 size */
out_fdc(iobase, type->datalen); /* data length */
out_fdc(iot, ioh, NE7CMD_WRITE);/* WRITE */
out_fdc(iot, ioh, (head << 2) | fd->sc_drive);
out_fdc(iot, ioh, fd->sc_cylin); /* track */
out_fdc(iot, ioh, head);
out_fdc(iot, ioh, sec + 1); /* sector + 1 */
out_fdc(iot, ioh, type->secsize); /* sector size */
out_fdc(iot, ioh, type->sectrac); /* sectors/track */
out_fdc(iot, ioh, type->gap1); /* gap1 size */
out_fdc(iot, ioh, type->datalen); /* data length */
fdc->sc_state = IOCOMPLETE;
disk_busy(&fd->sc_dk);
/* allow 2 seconds for operation */
callout_reset(&fdc->sc_timo_ch, 2 * hz, fdctimeout, fdc);
return 1; /* will return later */
@ -969,13 +921,14 @@ loop:
callout_stop(&fdc->sc_timo_ch);
fdc->sc_state = SEEKCOMPLETE;
/* allow 1/50 second for heads to settle */
callout_reset(&fdc->sc_intr_ch, hz / 50,
fdcpseudointr, fdc);
callout_reset(&fdc->sc_intr_ch, hz / 50, fdcpseudointr, fdc);
return 1;
case SEEKCOMPLETE:
disk_unbusy(&fd->sc_dk, 0);
/* Make sure seek really happened. */
out_fdc(iobase, NE7CMD_SENSEI);
out_fdc(iot, ioh, NE7CMD_SENSEI);
if (fdcresult(fdc) != 2 || (st0 & 0xf8) != 0x20 ||
cyl != bp->b_cylinder * fd->sc_type->step) {
#ifdef FD_DEBUG
@ -988,7 +941,7 @@ loop:
goto doio;
case IOTIMEDOUT:
DMA_RESET(fdc->dma);
FDCDMA_ABORT(fdc);
case SEEKTIMEDOUT:
case RECALTIMEDOUT:
@ -998,8 +951,12 @@ loop:
case IOCOMPLETE: /* IO DONE, post-analyze */
callout_stop(&fdc->sc_timo_ch);
if (fdcresult(fdc) != 7 || (st0 & 0xf8) != 0) {
DMA_RESET(fdc->dma);
disk_unbusy(&fd->sc_dk, (bp->b_bcount - bp->b_resid));
i = fdcresult(fdc);
if (i != 7 || (st0 & 0xf8) != 0) {
FDCDMA_ABORT(fdc);
#ifdef FD_DEBUG
fdcstatus(&fd->sc_dev, 7, bp->b_flags & B_READ ?
"read failed" : "write failed");
@ -1009,10 +966,9 @@ loop:
fdcretry(fdc);
goto loop;
}
DMA_END(fdc->dma);
read = bp->b_flags & B_READ;
FDCDMA_DONE(fdc);
if (fdc->sc_errors) {
diskerr(bp, "fd", "soft error", LOG_PRINTF,
diskerr(bp, "fd", "soft error (corrected)", LOG_PRINTF,
fd->sc_skip / FDC_BSIZE, (struct disklabel *)NULL);
printf("\n");
fdc->sc_errors = 0;
@ -1040,14 +996,14 @@ loop:
callout_stop(&fdc->sc_timo_ch);
/* clear the controller output buffer */
for (i = 0; i < 4; i++) {
out_fdc(iobase, NE7CMD_SENSEI);
out_fdc(iot, ioh, NE7CMD_SENSEI);
(void) fdcresult(fdc);
}
/* fall through */
case DORECAL:
out_fdc(iobase, NE7CMD_RECAL); /* recalibrate function */
out_fdc(iobase, fd->sc_drive);
out_fdc(iot, ioh, NE7CMD_RECAL); /* recalibrate function */
out_fdc(iot, ioh, fd->sc_drive);
fdc->sc_state = RECALWAIT;
callout_reset(&fdc->sc_timo_ch, 5 * hz, fdctimeout, fdc);
return 1; /* will return later */
@ -1056,12 +1012,11 @@ loop:
callout_stop(&fdc->sc_timo_ch);
fdc->sc_state = RECALCOMPLETE;
/* allow 1/30 second for heads to settle */
callout_reset(&fdc->sc_intr_ch, hz / 30,
fdcpseudointr, fdc);
callout_reset(&fdc->sc_intr_ch, hz / 30, fdcpseudointr, fdc);
return 1; /* will return later */
case RECALCOMPLETE:
out_fdc(iobase, NE7CMD_SENSEI);
out_fdc(iot, ioh, NE7CMD_SENSEI);
if (fdcresult(fdc) != 2 || (st0 & 0xf8) != 0x20 || cyl != 0) {
#ifdef FD_DEBUG
fdcstatus(&fd->sc_dev, 2, "recalibrate failed");
@ -1102,7 +1057,7 @@ fdcretry(fdc)
switch (fdc->sc_errors) {
case 0:
/* try again */
fdc->sc_state = SEEKCOMPLETE;
fdc->sc_state = DOSEEK;
break;
case 1: case 2: case 3:
@ -1157,19 +1112,20 @@ fddump(dev, blkno, va, size)
}
int
fdioctl(dev, cmd, addr, flag)
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)];
struct fd_softc *fd = device_lookup(&fd_cd, FDUNIT(dev));
struct disklabel buffer;
int error;
switch (cmd) {
case DIOCGDINFO:
bzero(&buffer, sizeof(buffer));
memset(&buffer, 0, sizeof(buffer));
buffer.d_secpercyl = fd->sc_type->seccyl;
buffer.d_type = DTYPE_FLOPPY;
@ -1191,7 +1147,8 @@ fdioctl(dev, cmd, addr, flag)
if ((flag & FWRITE) == 0)
return EBADF;
error = setdisklabel(&buffer, (struct disklabel *)addr, 0, NULL);
error = setdisklabel(&buffer, (struct disklabel *)addr,
0, NULL);
if (error)
return error;
@ -1206,3 +1163,24 @@ fdioctl(dev, cmd, addr, flag)
panic("fdioctl: impossible");
#endif
}
/*
* Mountroot hook: prompt the user to enter the root file system floppy.
*/
void
fd_mountroot_hook(dev)
struct device *dev;
{
int c;
printf("Insert filesystem floppy and press return.");
cnpollc(1);
for (;;) {
c = cngetc();
if ((c == '\r') || (c == '\n')) {
printf("\n");
break;
}
}
cnpollc(0);
}

237
sys/arch/arc/jazz/fdc_jazzio.c Normal file
View File

@ -0,0 +1,237 @@
/* $NetBSD: fdc_jazzio.c,v 1.1 2001/05/22 03:22:50 soda Exp $ */
/* $OpenBSD: fd.c,v 1.6 1998/10/03 21:18:57 millert Exp $ */
/* NetBSD: fd.c,v 1.78 1995/07/04 07:23:09 mycroft Exp */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*-
* 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.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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 <sys/param.h>
#include <sys/systm.h>
#include <sys/callout.h>
#include <sys/device.h>
#include <sys/buf.h>
#include <sys/queue.h>
#include <mips/locore.h> /* for mips3_HitFlushDCache() */
#include <machine/autoconf.h>
#include <machine/bus.h>
#include <machine/cpu.h>
#include <arc/jazz/jazzdmatlbreg.h>
#include <arc/jazz/fdreg.h>
#include <arc/jazz/fdcvar.h>
#include <arc/jazz/jazziovar.h>
#include <arc/jazz/dma.h>
#include "locators.h"
/* controller driver configuration */
int fdc_jazzio_probe(struct device *, struct cfdata *, void *);
void fdc_jazzio_attach(struct device *, struct device *, void *);
/* MD DMA hook functions */
void fdc_jazzio_dma_start(struct fdc_softc *, caddr_t, size_t, int);
void fdc_jazzio_dma_abort(struct fdc_softc *);
void fdc_jazzio_dma_done(struct fdc_softc *);
/* software state, per controller */
struct fdc_jazzio_softc {
struct fdc_softc sc_fdc; /* base fdc device */
bus_space_handle_t sc_baseioh; /* base I/O handle */
struct dma_softc __dma;
struct dma_softc *dma;
};
struct cfattach fdc_jazzio_ca = {
sizeof(struct fdc_jazzio_softc), fdc_jazzio_probe, fdc_jazzio_attach
};
#define FDC_NPORT 6
#define FDC_OFFSET 2 /* Should we use bus_space_subregion() or not? */
int
fdc_jazzio_probe(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct jazzio_attach_args *ja = aux;
bus_space_tag_t iot;
bus_space_handle_t base_ioh, ioh;
int rv;
if (strcmp(ja->ja_name, "fdc") != 0)
return 0;
iot = ja->ja_bust;
rv = 0;
/* Map the I/O space. */
if (bus_space_map(iot, ja->ja_addr,
FDC_OFFSET + FDC_NPORT, 0, &base_ioh))
return 0;
if (bus_space_subregion(iot, base_ioh, FDC_OFFSET, FDC_NPORT, &ioh))
goto out;
/* reset */
bus_space_write_1(iot, ioh, FDOUT, 0);
delay(100);
bus_space_write_1(iot, ioh, FDOUT, FDO_FRST);
/* see if it can handle a command */
if (out_fdc(iot, ioh, NE7CMD_SPECIFY) < 0)
goto out;
out_fdc(iot, ioh, 0xdf); /* XXX */
out_fdc(iot, ioh, 2); /* XXX */
rv = 1;
out:
bus_space_unmap(iot, base_ioh, FDC_OFFSET + FDC_NPORT);
return rv;
}
void
fdc_jazzio_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct fdc_jazzio_softc *jsc = (struct fdc_jazzio_softc *)self;
struct fdc_softc *fdc = &jsc->sc_fdc;
struct jazzio_attach_args *ja = aux;
fdc->sc_iot = ja->ja_bust;
fdc->sc_maxiosize = 4096; /* XXX */
fdc->sc_dma_start = fdc_jazzio_dma_start;
fdc->sc_dma_abort = fdc_jazzio_dma_abort;
fdc->sc_dma_done = fdc_jazzio_dma_done;
jsc->dma = &jsc->__dma;
fdc_dma_init(jsc->dma);
if (bus_space_map(fdc->sc_iot, ja->ja_addr,
FDC_OFFSET + FDC_NPORT, 0, &jsc->sc_baseioh)) {
printf(": unable to map I/O space\n");
return;
}
if (bus_space_subregion(fdc->sc_iot, jsc->sc_baseioh,
FDC_OFFSET, FDC_NPORT, &fdc->sc_ioh)) {
printf(": unable to subregion I/O space\n");
bus_space_unmap(fdc->sc_iot, jsc->sc_baseioh,
FDC_OFFSET + FDC_NPORT);
return;
}
printf("\n");
jazzio_intr_establish(ja->ja_intr, fdcintr, fdc);
fdcattach(fdc);
}
void
fdc_jazzio_dma_start(fdc, addr, size, datain)
struct fdc_softc *fdc;
caddr_t addr;
size_t size;
int datain;
{
struct fdc_jazzio_softc *jsc = (void *)fdc;
mips3_FlushDCache((vaddr_t)addr, (vsize_t)size);
DMA_START(jsc->dma, addr, size, datain ? DMA_FROM_DEV : DMA_TO_DEV);
}
void
fdc_jazzio_dma_abort(fdc)
struct fdc_softc *fdc;
{
struct fdc_jazzio_softc *jsc = (void *)fdc;
DMA_RESET(jsc->dma);
}
void
fdc_jazzio_dma_done(fdc)
struct fdc_softc *fdc;
{
struct fdc_jazzio_softc *jsc = (void *)fdc;
DMA_END(jsc->dma);
}

146
sys/arch/arc/jazz/fdcvar.h Normal file
View File

@ -0,0 +1,146 @@
/* $NetBSD: fdcvar.h,v 1.1 2001/05/22 03:22:50 soda Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*-
* 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.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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
*/
/*
* Floppy formatting facilities merged from FreeBSD fd.c driver:
* Id: fd.c,v 1.53 1995/03/12 22:40:56 joerg Exp
* which carries the same copyright/redistribution notice as shown above with
* the addition of the following statement before the "Redistribution and
* use ..." clause:
*
* Copyright (c) 1993, 1994 by
* jc@irbs.UUCP (John Capo)
* vak@zebub.msk.su (Serge Vakulenko)
* ache@astral.msk.su (Andrew A. Chernov)
*
* Copyright (c) 1993, 1994, 1995 by
* joerg_wunsch@uriah.sax.de (Joerg Wunsch)
* dufault@hda.com (Peter Dufault)
*/
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 */
void *sc_ih;
bus_space_tag_t sc_iot; /* I/O space identifier */
bus_space_handle_t sc_ioh; /* I/O handle */
struct callout sc_timo_ch; /* timeout callout */
struct callout sc_intr_ch; /* pseudo-intr callout */
bus_size_t sc_maxiosize;
struct fd_softc *sc_fd[4]; /* pointers to children */
TAILQ_HEAD(drivehead, fd_softc) sc_drives;
enum fdc_state sc_state;
int sc_errors; /* number of retries so far */
u_char sc_status[7]; /* copy of registers */
/* DMA functions set from MD code */
void (*sc_dma_start)(struct fdc_softc *, caddr_t, size_t, int);
void (*sc_dma_abort)(struct fdc_softc *);
void (*sc_dma_done)(struct fdc_softc *);
};
#define FDCDMA_START(fdc, addr, len, datain) \
(*(fdc)->sc_dma_start)(fdc, addr, len, datain)
#define FDCDMA_ABORT(fdc) (*(fdc)->sc_dma_abort)(fdc)
#define FDCDMA_DONE(fdc) (*(fdc)->sc_dma_done)(fdc)
int out_fdc(bus_space_tag_t iot, bus_space_handle_t ioh, u_char x);
void fdcattach(struct fdc_softc *);
int fdcintr(void *);

15
sys/arch/arc/jazz/fdreg.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: fdreg.h,v 1.1 2000/12/24 09:25:28 ur Exp $ */
/* $NetBSD: fdreg.h,v 1.2 2001/05/22 03:22:50 soda Exp $ */
/* $OpenBSD: fdreg.h,v 1.1.1.1 1996/06/24 09:07:19 pefo Exp $ */
/* NetBSD: fdreg.h,v 1.8 1995/06/28 04:30:57 cgd Exp */
@ -45,24 +45,25 @@
#include <dev/ic/nec765reg.h>
/* registers */
#define fdout 2 /* Digital Output Register (W) */
#define FDOUT 0 /* Digital Output Register (W) */
#define FDO_FDSEL 0x03 /* floppy device select */
#define FDO_FRST 0x04 /* floppy controller reset */
#define FDO_FDMAEN 0x08 /* enable floppy DMA and Interrupt */
#define FDO_MOEN(n) ((1 << n) * 0x10) /* motor enable */
#define fdsts 4 /* NEC 765 Main Status Register (R) */
#define fddata 5 /* NEC 765 Data Register (R/W) */
#define FDSTS 2 /* NEC 765 Main Status Register (R) */
#define FDDATA 3 /* NEC 765 Data Register (R/W) */
#define fdctl 7 /* Control Register (W) */
#define FDCTL 5 /* Control Register (W) */
#define FDC_500KBPS 0x00 /* 500KBPS MFM drive transfer rate */
#define FDC_300KBPS 0x01 /* 300KBPS MFM drive transfer rate */
#define FDC_250KBPS 0x02 /* 250KBPS MFM drive transfer rate */
#define FDC_125KBPS 0x03 /* 125KBPS FM drive transfer rate */
#define fdin 7 /* Digital Input Register (R) */
#define FDIN 5 /* Digital Input Register (R) */
#define FDI_DCHG 0x80 /* diskette has been changed */
#define FDC_BSIZE 512
#if 0
#define FDC_NPORT 8
#define FDC_MAXIOSIZE NBPG /* XXX should be MAXBSIZE */
#endif