[unix-history] / usr / src / sys / vax / uba / rk.c

/*	rk.c	4.24	%G%	*/

int	rkpip;
int	rknosval;
#include "rk.h"
#if NHK > 0
/*
 * RK11/RK07 disk driver
 *
 * This driver mimics up.c; see it for an explanation of common code.
 *
 * TODO:
 *	Add reading of bad sector information and disk layout from sector 1
 *	Add bad sector forwarding code
 *	Why do we lose an interrupt sometime when spinning drives down?
 */
#define	DELAY(i)		{ register int j; j = i; while (--j > 0); }
#include "../h/param.h"
#include "../h/systm.h"
#include "../h/buf.h"
#include "../h/conf.h"
#include "../h/dir.h"
#include "../h/user.h"
#include "../h/pte.h"
#include "../h/map.h"
#include "../h/vm.h"
#include "../h/ubareg.h"
#include "../h/ubavar.h"
#include "../h/dk.h"
#include "../h/cpu.h"
#include "../h/cmap.h"

#include "../h/rkreg.h"

struct	rk_softc {
	int	sc_softas;
	int	sc_ndrive;
	int	sc_wticks;
	int	sc_recal;
} rk_softc[NHK];

/* THIS SHOULD BE READ OFF THE PACK, PER DRIVE */
struct size {
	daddr_t	nblocks;
	int	cyloff;
} rk7_sizes[] ={
	15884,	0,		/* A=cyl 0 thru 240 */
	10032,	241,		/* B=cyl 241 thru 392 */
	53790,	0,		/* C=cyl 0 thru 814 */
	0,	0,
	0,	0,
	0,	0,
	27786,	393,		/* G=cyl 393 thru 813 */
	0,	0,
};
/* END OF STUFF WHICH SHOULD BE READ IN PER DISK */

int	rkprobe(), rkslave(), rkattach(), rkdgo(), rkintr();
struct	uba_ctlr *rkminfo[NHK];
struct	uba_device *rkdinfo[NRK];
struct	uba_device *rkip[NHK][4];

u_short	rkstd[] = { 0777440, 0 };
struct	uba_driver hkdriver =
 { rkprobe, rkslave, rkattach, rkdgo, rkstd, "rk", rkdinfo, "hk", rkminfo, 1 };
struct	buf rkutab[NRK];
short	rkcyl[NRK];

struct	rkst {
	short	nsect;
	short	ntrak;
	short	nspc;
	short	ncyl;
	struct	size *sizes;
} rkst[] = {
	NRKSECT, NRKTRK, NRKSECT*NRKTRK,	NRK7CYL,	rk7_sizes,
};

u_char 	rk_offset[16] =
  { P400,M400,P400,M400,P800,M800,P800,M800,P1200,M1200,P1200,M1200,0,0,0,0 };

struct	buf rrkbuf[NRK];

#define	b_cylin	b_resid

#ifdef INTRLVE
daddr_t	dkblock();
#endif

int	rkwstart, rkwatch();

rkprobe(reg)
	caddr_t reg;
{
	register int br, cvec;

#ifdef lint	
	br = 0; cvec = br; br = cvec;
#endif
	((struct rkdevice *)reg)->rkcs1 = RK_CDT|RK_IE|RK_CRDY;
	DELAY(10);
	((struct rkdevice *)reg)->rkcs1 = RK_CDT;
	return (1);
}

rkslave(ui, reg)
	struct uba_device *ui;
	caddr_t reg;
{
	register struct rkdevice *rkaddr = (struct rkdevice *)reg;

	rkaddr->rkcs1 = RK_CDT|RK_CCLR;
	rkaddr->rkcs2 = ui->ui_slave;
	rkaddr->rkcs1 = RK_CDT|RK_DCLR|RK_GO;
	rkwait(rkaddr);
	DELAY(50);
	if (rkaddr->rkcs2&RK_NED || (rkaddr->rkds&RK_SVAL) == 0) {
		rkaddr->rkcs1 = RK_CDT|RK_CCLR;
		return (0);
	}
	return (1);
}

rkattach(ui)
	register struct uba_device *ui;
{

	if (rkwstart == 0) {
		timeout(rkwatch, (caddr_t)0, hz);
		rkwstart++;
	}
	if (ui->ui_dk >= 0)
		dk_mspw[ui->ui_dk] = 1.0 / (60 * NRKSECT * 256);
	rkip[ui->ui_ctlr][ui->ui_slave] = ui;
	rk_softc[ui->ui_ctlr].sc_ndrive++;
	rkcyl[ui->ui_unit] = -1;
}
 
rkstrategy(bp)
	register struct buf *bp;
{
	register struct uba_device *ui;
	register struct rkst *st;
	register int unit;
	register struct buf *dp;
	int xunit = minor(bp->b_dev) & 07;
	long bn, sz;

	sz = (bp->b_bcount+511) >> 9;
	unit = dkunit(bp);
	if (unit >= NRK)
		goto bad;
	ui = rkdinfo[unit];
	if (ui == 0 || ui->ui_alive == 0)
		goto bad;
	st = &rkst[ui->ui_type];
	if (bp->b_blkno < 0 ||
	    (bn = dkblock(bp))+sz > st->sizes[xunit].nblocks)
		goto bad;
	bp->b_cylin = bn/st->nspc + st->sizes[xunit].cyloff;
	(void) spl5();
	dp = &rkutab[ui->ui_unit];
	disksort(dp, bp);
	if (dp->b_active == 0) {
		(void) rkustart(ui);
		bp = &ui->ui_mi->um_tab;
		if (bp->b_actf && bp->b_active == 0)
			(void) rkstart(ui->ui_mi);
	}
	(void) spl0();
	return;

bad:
	bp->b_flags |= B_ERROR;
	iodone(bp);
	return;
}

rkustart(ui)
	register struct uba_device *ui;
{
	register struct buf *bp, *dp;
	register struct uba_ctlr *um;
	register struct rkdevice *rkaddr;
	register struct rkst *st;
	daddr_t bn;
	int sn, csn;
	int didie = 0;

	if (ui == 0)
		return (0);
	dk_busy &= ~(1<<ui->ui_dk);
	dp = &rkutab[ui->ui_unit];
	um = ui->ui_mi;
	rkaddr = (struct rkdevice *)um->um_addr;
	if (um->um_tab.b_active) {
		rk_softc[um->um_ctlr].sc_softas |= 1<<ui->ui_slave;
		return (0);
	}
	rkaddr->rkcs1 = RK_CDT|RK_CERR;
	rkaddr->rkcs2 = ui->ui_slave;
	rkaddr->rkcs1 = RK_CDT|RK_DCLR|RK_GO;
	rkwait(rkaddr);
	if ((bp = dp->b_actf) == NULL) {
		rkaddr->rkcs1 = RK_CDT|RK_DCLR|RK_GO;
		rkwait(rkaddr);
		return (0);
	}
	if ((rkaddr->rkds & RK_VV) == 0) {
		/* SHOULD WARN SYSTEM THAT THIS HAPPENED */
		rkaddr->rkcs1 = RK_CDT|RK_PACK|RK_GO;
		rkwait(rkaddr);
	}
	if (dp->b_active)
		goto done;
	dp->b_active = 1;
	if ((rkaddr->rkds & RK_DREADY) != RK_DREADY)
		goto done;
	if (rk_softc[um->um_ctlr].sc_ndrive == 1)
		goto done;
	if (bp->b_cylin == rkcyl[ui->ui_unit])
		goto done;
	rkaddr->rkcyl = bp->b_cylin;
	rkcyl[ui->ui_unit] = bp->b_cylin;
	rkaddr->rkcs1 = RK_CDT|RK_IE|RK_SEEK|RK_GO;
	didie = 1;
	if (ui->ui_dk >= 0) {
		dk_busy |= 1<<ui->ui_dk;
		dk_seek[ui->ui_dk]++;
	}
	goto out;
done:
	if (dp->b_active != 2) {
		dp->b_forw = NULL;
		if (um->um_tab.b_actf == NULL)
			um->um_tab.b_actf = dp;
		else
			um->um_tab.b_actl->b_forw = dp;
		um->um_tab.b_actl = dp;
		dp->b_active = 2;
	}
out:
	return (didie);
}

rkstart(um)
	register struct uba_ctlr *um;
{
	register struct buf *bp, *dp;
	register struct uba_device *ui;
	register struct rkdevice *rkaddr;
	struct rkst *st;
	daddr_t bn;
	int sn, tn, cmd;

loop:
	if ((dp = um->um_tab.b_actf) == NULL)
		return (0);
	if ((bp = dp->b_actf) == NULL) {
		um->um_tab.b_actf = dp->b_forw;
		goto loop;
	}
	um->um_tab.b_active++;
	ui = rkdinfo[dkunit(bp)];
	bn = dkblock(bp);
	st = &rkst[ui->ui_type];
	sn = bn%st->nspc;
	tn = sn/st->nsect;
	sn %= st->nsect;
	rkaddr = (struct rkdevice *)ui->ui_addr;
retry:
	rkaddr->rkcs1 = RK_CDT|RK_CERR;
	rkaddr->rkcs2 = ui->ui_slave;
	rkaddr->rkcs1 = RK_CDT|RK_DCLR|RK_GO;
	rkwait(rkaddr);
	if ((rkaddr->rkds&RK_SVAL) == 0) {
		rknosval++;
		goto nosval;
	}
	if (rkaddr->rkds&RK_PIP) {
		rkpip++;
		goto retry;
	}
	if ((rkaddr->rkds&RK_DREADY) != RK_DREADY) {
		printf("rk%d: not ready", dkunit(bp));
		if ((rkaddr->rkds&RK_DREADY) != RK_DREADY) {
			printf("\n");
			rkaddr->rkcs1 = RK_CDT|RK_DCLR|RK_GO;
			rkwait(rkaddr);
			rkaddr->rkcs1 = RK_CDT|RK_CERR;
			rkwait(rkaddr);
			um->um_tab.b_active = 0;
			um->um_tab.b_errcnt = 0;
			dp->b_actf = bp->av_forw;
			dp->b_active = 0;
			bp->b_flags |= B_ERROR;
			iodone(bp);
			goto loop;
		}
		printf(" (came back!)\n");
	}
nosval:
	rkaddr->rkcyl = bp->b_cylin;
	rkcyl[ui->ui_unit] = bp->b_cylin;
	rkaddr->rkda = (tn << 8) + sn;
	rkaddr->rkwc = -bp->b_bcount / sizeof (short);
	if (bp->b_flags & B_READ)
		cmd = RK_CDT|RK_IE|RK_READ|RK_GO;
	else
		cmd = RK_CDT|RK_IE|RK_WRITE|RK_GO;
	um->um_cmd = cmd;
	ubago(ui);
	return (1);
}

rkdgo(um)
	register struct uba_ctlr *um;
{
	register struct rkdevice *rkaddr = (struct rkdevice *)um->um_addr;

	rkaddr->rkba = um->um_ubinfo;
	rkaddr->rkcs1 = um->um_cmd|((um->um_ubinfo>>8)&0x300);
}

rkintr(rk11)
	int rk11;
{
	register struct uba_ctlr *um = rkminfo[rk11];
	register struct uba_device *ui;
	register struct rkdevice *rkaddr = (struct rkdevice *)um->um_addr;
	register struct buf *bp, *dp;
	int unit;
	struct rk_softc *sc = &rk_softc[um->um_ctlr];
	int as = (rkaddr->rkatt >> 8) | sc->sc_softas;
	int needie = 1;

	sc->sc_wticks = 0;
	sc->sc_softas = 0;
	if (um->um_tab.b_active) {
		ubadone(um);
		dp = um->um_tab.b_actf;
		bp = dp->b_actf;
		ui = rkdinfo[dkunit(bp)];
		dk_busy &= ~(1 << ui->ui_dk);
		if (rkaddr->rkcs1 & RK_CERR) {
			int recal;
			u_short ds = rkaddr->rkds;
			u_short cs2 = rkaddr->rkcs2;
			u_short er = rkaddr->rker;
			if (ds & RK_WLE) {
				printf("rk%d: write locked\n", dkunit(bp));
				bp->b_flags |= B_ERROR;
			} else if (++um->um_tab.b_errcnt > 28 ||
			    ds&RKDS_HARD || er&RKER_HARD || cs2&RKCS2_HARD) {
				bp->b_flags |= B_ERROR;
				harderr(bp, "rk");
				printf("cs2=%b ds=%b er=%b\n",
				    cs2, RKCS2_BITS, ds, 
				    RKDS_BITS, er, RKER_BITS);
			} else
				um->um_tab.b_active = 0;
			if (cs2&RK_MDS) {
				rkaddr->rkcs2 = RK_SCLR;
				goto retry;
			}
			recal = 0;
			if (ds&RK_DROT || er&(RK_OPI|RK_SKI|RK_UNS) ||
			    (um->um_tab.b_errcnt&07) == 4)
				recal = 1;
			if ((er & (RK_DCK|RK_ECH)) == RK_DCK)
				if (rkecc(ui))
					return;
			rkaddr->rkcs1 = RK_CDT|RK_CCLR;
			rkaddr->rkcs2 = ui->ui_slave;
			rkaddr->rkcs1 = RK_CDT|RK_DCLR|RK_GO;
			rkwait(rkaddr);
			if (recal && um->um_tab.b_active == 0) {
				rkaddr->rkcs1 = RK_CDT|RK_IE|RK_RECAL|RK_GO;
				rkcyl[ui->ui_unit] = -1;
				sc->sc_recal = 0;
				goto nextrecal;
			}
		}
retry:
		switch (sc->sc_recal) {

		case 1:
			rkaddr->rkcyl = bp->b_cylin;
			rkcyl[ui->ui_unit] = bp->b_cylin;
			rkaddr->rkcs1 = RK_CDT|RK_IE|RK_SEEK|RK_GO;
			goto nextrecal;

		case 2:
			if (um->um_tab.b_errcnt < 16 ||
			    (bp->b_flags&B_READ) != 0)
				break;
			rkaddr->rkatt = rk_offset[um->um_tab.b_errcnt & 017];
			rkaddr->rkcs1 = RK_CDT|RK_IE|RK_OFFSET|RK_GO;
			/* fall into ... */
		nextrecal:
			sc->sc_recal++;
			rkwait(rkaddr);
			um->um_tab.b_active = 1;
			return;

		case 3:
			sc->sc_recal = 0;
			um->um_tab.b_active = 0;
			break;
		}
		if (um->um_tab.b_active) {
			um->um_tab.b_active = 0;
			um->um_tab.b_errcnt = 0;
			um->um_tab.b_actf = dp->b_forw;
			dp->b_active = 0;
			dp->b_errcnt = 0;
			dp->b_actf = bp->av_forw;
			bp->b_resid = -rkaddr->rkwc * sizeof(short);
			iodone(bp);
			if (dp->b_actf)
				if (rkustart(ui))
					needie = 0;
		}
		as &= ~(1<<ui->ui_slave);
	}
	for (unit = 0; as; as >>= 1, unit++)
		if (as & 1) {
			ui = rkip[rk11][unit];
			if (ui) {
				if (rkustart(rkip[rk11][unit]))
					needie = 0;
			} else {
				rkaddr->rkcs1 = RK_CERR|RK_CDT;
				rkaddr->rkcs2 = unit;
				rkaddr->rkcs1 = RK_CDT|RK_DCLR|RK_GO;
				rkwait(rkaddr);
			}
		}
	if (um->um_tab.b_actf && um->um_tab.b_active == 0)
		if (rkstart(um))
			needie = 0;
	if (needie)
		rkaddr->rkcs1 = RK_CDT|RK_IE;
}

rkwait(addr)
	register struct rkdevice *addr;
{

	while ((addr->rkcs1 & RK_CRDY) == 0)
		;
}

rkread(dev)
	dev_t dev;
{
	register int unit = minor(dev) >> 3;

	if (unit >= NRK)
		u.u_error = ENXIO;
	else
		physio(rkstrategy, &rrkbuf[unit], dev, B_READ, minphys);
}

rkwrite(dev)
	dev_t dev;
{
	register int unit = minor(dev) >> 3;

	if (unit >= NRK)
		u.u_error = ENXIO;
	else
		physio(rkstrategy, &rrkbuf[unit], dev, B_WRITE, minphys);
}

rkecc(ui)
	register struct uba_device *ui;
{
	register struct rkdevice *rk = (struct rkdevice *)ui->ui_addr;
	register struct buf *bp = rkutab[ui->ui_unit].b_actf;
	register struct uba_ctlr *um = ui->ui_mi;
	register struct rkst *st;
	struct uba_regs *ubp = ui->ui_hd->uh_uba;
	register int i;
	caddr_t addr;
	int reg, bit, byte, npf, mask, o, cmd, ubaddr;
	int bn, cn, tn, sn;

	npf = btop((rk->rkwc * sizeof(short)) + bp->b_bcount) - 1;
	reg = btop(um->um_ubinfo&0x3ffff) + npf;
	o = (int)bp->b_un.b_addr & PGOFSET;
	printf("rk%d%c: soft ecc sn%d\n", dkunit(bp),
	    'a'+(minor(bp->b_dev)&07), bp->b_blkno + npf);
	mask = rk->rkec2;
	ubapurge(um);
	i = rk->rkec1 - 1;		/* -1 makes 0 origin */
	bit = i&07;
	i = (i&~07)>>3;
	byte = i + o;
	while (i < 512 && (int)ptob(npf)+i < bp->b_bcount && bit > -11) {
		addr = ptob(ubp->uba_map[reg+btop(byte)].pg_pfnum)+
		    (byte & PGOFSET);
		putmemc(addr, getmemc(addr)^(mask<<bit));
		byte++;
		i++;
		bit -= 8;
	}
	um->um_tab.b_active++;	/* Either complete or continuing... */
	if (rk->rkwc == 0)
		return (0);
#ifdef notdef
	rk->rkcs1 |= RK_GO;
#else
	rk->rkcs1 = RK_CDT|RK_CCLR;
	rk->rkcs2 = ui->ui_slave;
	rk->rkcs1 = RK_CDT|RK_DCLR|RK_GO;
	rkwait(rk);
	bn = dkblock(bp);
	st = &rkst[ui->ui_type];
	cn = bp->b_cylin;
	sn = bn%st->nspc + npf + 1;
	tn = sn/st->nsect;
	sn %= st->nsect;
	cn += tn/st->ntrak;
	tn %= st->ntrak;
	rk->rkcyl = cn;
	rk->rkda = (tn << 8) | sn;
	ubaddr = (int)ptob(reg+1) + o;
	rk->rkba = ubaddr;
	cmd = (ubaddr >> 8) & 0x300;
	cmd |= RK_CDT|RK_IE|RK_GO|RK_READ;
	rk->rkcs1 = cmd;
#endif
	return (1);
}

rkreset(uban)
	int uban;
{
	register struct uba_ctlr *um;
	register struct uba_device *ui;
	register rk11, unit;

	for (rk11 = 0; rk11 < NHK; rk11++) {
		if ((um = rkminfo[rk11]) == 0 || um->um_ubanum != uban ||
		    um->um_alive == 0)
			continue;
		printf(" hk%d", rk11);
		um->um_tab.b_active = 0;
		um->um_tab.b_actf = um->um_tab.b_actl = 0;
		rk_softc[um->um_ctlr].sc_recal = 0;
		if (um->um_ubinfo) {
			printf("<%d>", (um->um_ubinfo>>28)&0xf);
			ubadone(um);
		}
		for (unit = 0; unit < NHK; unit++) {
			if ((ui = rkdinfo[unit]) == 0)
				continue;
			if (ui->ui_alive == 0)
				continue;
			rkutab[unit].b_active = 0;
			(void) rkustart(ui);
		}
		(void) rkstart(um);
	}
}

rkwatch()
{
	register struct uba_ctlr *um;
	register rk11, unit;
	register struct rk_softc *sc;

	timeout(rkwatch, (caddr_t)0, hz);
	for (rk11 = 0; rk11 < NHK; rk11++) {
		um = rkminfo[rk11];
		if (um == 0 || um->um_alive == 0)
			continue;
		sc = &rk_softc[rk11];
		if (um->um_tab.b_active == 0) {
			for (unit = 0; unit < NRK; unit++)
				if (rkutab[unit].b_active &&
				    rkdinfo[unit]->ui_mi == um)
					goto active;
			sc->sc_wticks = 0;
			continue;
		}
active:
		sc->sc_wticks++;
		if (sc->sc_wticks >= 20) {
			sc->sc_wticks = 0;
			printf("hk%d: lost interrupt\n", rk11);
			ubareset(um->um_ubanum);
		}
	}
}

#define	DBSIZE	20

rkdump(dev)
	dev_t dev;
{
	struct rkdevice *rkaddr;
	char *start;
	int num, blk, unit;
	struct size *sizes;
	register struct uba_regs *uba;
	register struct uba_device *ui;
	register short *rp;
	struct rkst *st;

	unit = minor(dev) >> 3;
	if (unit >= NRK)
		return (ENXIO);
#define	phys(cast, addr) ((cast)((int)addr & 0x7fffffff))
	ui = phys(struct uba_device *, rkdinfo[unit]);
	if (ui->ui_alive == 0)
		return (ENXIO);
	uba = phys(struct uba_hd *, ui->ui_hd)->uh_physuba;
#if VAX780
	if (cpu == VAX_780)
		ubainit(uba);
#endif
	rkaddr = (struct rkdevice *)ui->ui_physaddr;
	num = maxfree;
	start = 0;
	rkaddr->rkcs1 = RK_CDT|RK_CERR;
	rkaddr->rkcs2 = unit;
	rkaddr->rkcs1 = RK_CDT|RK_DCLR|RK_GO;
	rkwait(rkaddr);
	if ((rkaddr->rkds & RK_VV) == 0) {
		rkaddr->rkcs1 = RK_CDT|RK_IE|RK_PACK|RK_GO;
		rkwait(rkaddr);
	}
	st = &rkst[ui->ui_type];
	sizes = phys(struct size *, st->sizes);
	if (dumplo < 0 || dumplo + num >= sizes[minor(dev)&07].nblocks)
		return (EINVAL);
	while (num > 0) {
		register struct pte *io;
		register int i;
		int cn, sn, tn;
		daddr_t bn;

		blk = num > DBSIZE ? DBSIZE : num;
		io = uba->uba_map;
		for (i = 0; i < blk; i++)
			*(int *)io++ = (btop(start)+i) | (1<<21) | UBAMR_MRV;
		*(int *)io = 0;
		bn = dumplo + btop(start);
		cn = bn/st->nspc + sizes[minor(dev)&07].cyloff;
		sn = bn%st->nspc;
		tn = sn/st->nsect;
		sn = sn%st->nsect;
		rkaddr->rkcyl = cn;
		rp = (short *) &rkaddr->rkda;
		*rp = (tn << 8) + sn;
		*--rp = 0;
		*--rp = -blk*NBPG / sizeof (short);
		*--rp = RK_CDT|RK_GO|RK_WRITE;
		rkwait(rkaddr);
		if (rkaddr->rkcs1 & RK_CERR)
			return (EIO);
		start += blk*NBPG;
		num -= blk;
	}
	return (0);
}
#endif
Commit	Line	Data
89bd2f01	1	/* rk.c 4.24 %G% */
d483c58c	2
29a0409f BJ	3	int rkpip;
29a0409f BJ	4	int rknosval;
66b4fb09	5	#include "rk.h"
872b4e09	6	#if NHK > 0
d483c58c	7	/*
0801d37f	8	* RK11/RK07 disk driver
9037157b BJ	9	*
9037157b BJ	10	* This driver mimics up.c; see it for an explanation of common code.
ed687006	11	*
c9e9b65b	12	* TODO:
c9e9b65b BJ	13	* Add reading of bad sector information and disk layout from sector 1
c9e9b65b BJ	14	* Add bad sector forwarding code
736f0c13	15	* Why do we lose an interrupt sometime when spinning drives down?
d483c58c	16	*/
0801d37f	17	#define DELAY(i) { register int j; j = i; while (--j > 0); }
d483c58c BJ	18	#include "../h/param.h"
	19	#include "../h/systm.h"
	20	#include "../h/buf.h"
	21	#include "../h/conf.h"
	22	#include "../h/dir.h"
	23	#include "../h/user.h"
	24	#include "../h/pte.h"
	25	#include "../h/map.h"
0801d37f	26	#include "../h/vm.h"
89bd2f01 BJ	27	#include "../h/ubareg.h"
89bd2f01 BJ	28	#include "../h/ubavar.h"
d483c58c	29	#include "../h/dk.h"
0801d37f BJ	30	#include "../h/cpu.h"
	31	#include "../h/cmap.h"
	32
	33	#include "../h/rkreg.h"
d483c58c	34
0801d37f BJ	35	struct rk_softc {
	36	int sc_softas;
	37	int sc_ndrive;
	38	int sc_wticks;
	39	int sc_recal;
872b4e09	40	} rk_softc[NHK];
0801d37f BJ	41
0801d37f BJ	42	/* THIS SHOULD BE READ OFF THE PACK, PER DRIVE */
c84ff1f9	43	struct size {
0801d37f	44	daddr_t nblocks;
d483c58c	45	int cyloff;
0801d37f BJ	46	} rk7_sizes[] ={
0801d37f BJ	47	15884, 0, /* A=cyl 0 thru 240 */
22717fbb BJ	48	10032, 241, /* B=cyl 241 thru 392 */
22717fbb BJ	49	53790, 0, /* C=cyl 0 thru 814 */
d483c58c BJ	50	0, 0,
	51	0, 0,
	52	0, 0,
0801d37f	53	27786, 393, /* G=cyl 393 thru 813 */
d483c58c	54	0, 0,
d483c58c	55	};
0801d37f BJ	56	/* END OF STUFF WHICH SHOULD BE READ IN PER DISK */
	57
	58	int rkprobe(), rkslave(), rkattach(), rkdgo(), rkintr();
89bd2f01 BJ	59	struct uba_ctlr *rkminfo[NHK];
	60	struct uba_device *rkdinfo[NRK];
	61	struct uba_device *rkip[NHK][4];
0801d37f BJ	62
	63	u_short rkstd[] = { 0777440, 0 };
	64	struct uba_driver hkdriver =
9037157b	65	{ rkprobe, rkslave, rkattach, rkdgo, rkstd, "rk", rkdinfo, "hk", rkminfo, 1 };
872b4e09 BJ	66	struct buf rkutab[NRK];
872b4e09 BJ	67	short rkcyl[NRK];
0801d37f BJ	68
	69	struct rkst {
	70	short nsect;
	71	short ntrak;
	72	short nspc;
	73	short ncyl;
	74	struct size *sizes;
	75	} rkst[] = {
	76	NRKSECT, NRKTRK, NRKSECT*NRKTRK, NRK7CYL, rk7_sizes,
	77	};
	78
	79	u_char rk_offset[16] =
	80	{ P400,M400,P400,M400,P800,M800,P800,M800,P1200,M1200,P1200,M1200,0,0,0,0 };
	81
872b4e09	82	struct buf rrkbuf[NRK];
0801d37f BJ	83
	84	#define b_cylin b_resid
	85
	86	#ifdef INTRLVE
	87	daddr_t dkblock();
	88	#endif
	89
	90	int rkwstart, rkwatch();
	91
	92	rkprobe(reg)
	93	caddr_t reg;
	94	{
	95	register int br, cvec;
	96
	97	#ifdef lint
	98	br = 0; cvec = br; br = cvec;
	99	#endif
	100	((struct rkdevice *)reg)->rkcs1 = RK_CDT\|RK_IE\|RK_CRDY;
	101	DELAY(10);
	102	((struct rkdevice *)reg)->rkcs1 = RK_CDT;
	103	return (1);
	104	}
	105
	106	rkslave(ui, reg)
89bd2f01	107	struct uba_device *ui;
0801d37f BJ	108	caddr_t reg;
	109	{
	110	register struct rkdevice rkaddr = (struct rkdevice )reg;
	111
28de6ed0	112	rkaddr->rkcs1 = RK_CDT\|RK_CCLR;
0801d37f	113	rkaddr->rkcs2 = ui->ui_slave;
29a0409f	114	rkaddr->rkcs1 = RK_CDT\|RK_DCLR\|RK_GO;
9037157b	115	rkwait(rkaddr);
28de6ed0 BJ	116	DELAY(50);
28de6ed0 BJ	117	if (rkaddr->rkcs2&RK_NED \|\| (rkaddr->rkds&RK_SVAL) == 0) {
0801d37f BJ	118	rkaddr->rkcs1 = RK_CDT\|RK_CCLR;
	119	return (0);
	120	}
	121	return (1);
	122	}
d483c58c	123
0801d37f	124	rkattach(ui)
89bd2f01	125	register struct uba_device *ui;
0801d37f BJ	126	{
	127
	128	if (rkwstart == 0) {
7780575a	129	timeout(rkwatch, (caddr_t)0, hz);
0801d37f BJ	130	rkwstart++;
	131	}
	132	if (ui->ui_dk >= 0)
7780575a	133	dk_mspw[ui->ui_dk] = 1.0 / (60 * NRKSECT * 256);
0801d37f BJ	134	rkip[ui->ui_ctlr][ui->ui_slave] = ui;
	135	rk_softc[ui->ui_ctlr].sc_ndrive++;
	136	rkcyl[ui->ui_unit] = -1;
	137	}
	138
d483c58c	139	rkstrategy(bp)
0801d37f	140	register struct buf *bp;
d483c58c	141	{
89bd2f01	142	register struct uba_device *ui;
0801d37f BJ	143	register struct rkst *st;
	144	register int unit;
	145	register struct buf *dp;
	146	int xunit = minor(bp->b_dev) & 07;
	147	long bn, sz;
	148
	149	sz = (bp->b_bcount+511) >> 9;
	150	unit = dkunit(bp);
872b4e09	151	if (unit >= NRK)
0801d37f BJ	152	goto bad;
	153	ui = rkdinfo[unit];
	154	if (ui == 0 \|\| ui->ui_alive == 0)
	155	goto bad;
	156	st = &rkst[ui->ui_type];
	157	if (bp->b_blkno < 0 \|\|
	158	(bn = dkblock(bp))+sz > st->sizes[xunit].nblocks)
	159	goto bad;
	160	bp->b_cylin = bn/st->nspc + st->sizes[xunit].cyloff;
	161	(void) spl5();
	162	dp = &rkutab[ui->ui_unit];
	163	disksort(dp, bp);
	164	if (dp->b_active == 0) {
	165	(void) rkustart(ui);
	166	bp = &ui->ui_mi->um_tab;
	167	if (bp->b_actf && bp->b_active == 0)
	168	(void) rkstart(ui->ui_mi);
d483c58c	169	}
0801d37f BJ	170	(void) spl0();
	171	return;
	172
	173	bad:
	174	bp->b_flags \|= B_ERROR;
	175	iodone(bp);
	176	return;
d483c58c BJ	177	}
d483c58c BJ	178
0801d37f	179	rkustart(ui)
89bd2f01	180	register struct uba_device *ui;
0801d37f BJ	181	{
0801d37f BJ	182	register struct buf bp, dp;
89bd2f01	183	register struct uba_ctlr *um;
0801d37f BJ	184	register struct rkdevice *rkaddr;
	185	register struct rkst *st;
	186	daddr_t bn;
	187	int sn, csn;
	188	int didie = 0;
	189
	190	if (ui == 0)
	191	return (0);
	192	dk_busy &= ~(1<<ui->ui_dk);
	193	dp = &rkutab[ui->ui_unit];
0801d37f	194	um = ui->ui_mi;
28de6ed0	195	rkaddr = (struct rkdevice *)um->um_addr;
0801d37f BJ	196	if (um->um_tab.b_active) {
	197	rk_softc[um->um_ctlr].sc_softas \|= 1<<ui->ui_slave;
	198	return (0);
	199	}
0801d37f BJ	200	rkaddr->rkcs1 = RK_CDT\|RK_CERR;
0801d37f BJ	201	rkaddr->rkcs2 = ui->ui_slave;
29a0409f	202	rkaddr->rkcs1 = RK_CDT\|RK_DCLR\|RK_GO;
0801d37f	203	rkwait(rkaddr);
736f0c13 BJ	204	if ((bp = dp->b_actf) == NULL) {
	205	rkaddr->rkcs1 = RK_CDT\|RK_DCLR\|RK_GO;
	206	rkwait(rkaddr);
	207	return (0);
	208	}
0801d37f BJ	209	if ((rkaddr->rkds & RK_VV) == 0) {
0801d37f BJ	210	/* SHOULD WARN SYSTEM THAT THIS HAPPENED */
28de6ed0	211	rkaddr->rkcs1 = RK_CDT\|RK_PACK\|RK_GO;
0801d37f	212	rkwait(rkaddr);
0801d37f	213	}
736f0c13 BJ	214	if (dp->b_active)
	215	goto done;
	216	dp->b_active = 1;
28de6ed0 BJ	217	if ((rkaddr->rkds & RK_DREADY) != RK_DREADY)
28de6ed0 BJ	218	goto done;
0801d37f BJ	219	if (rk_softc[um->um_ctlr].sc_ndrive == 1)
	220	goto done;
	221	if (bp->b_cylin == rkcyl[ui->ui_unit])
	222	goto done;
	223	rkaddr->rkcyl = bp->b_cylin;
	224	rkcyl[ui->ui_unit] = bp->b_cylin;
	225	rkaddr->rkcs1 = RK_CDT\|RK_IE\|RK_SEEK\|RK_GO;
	226	didie = 1;
	227	if (ui->ui_dk >= 0) {
	228	dk_busy \|= 1<<ui->ui_dk;
	229	dk_seek[ui->ui_dk]++;
	230	}
	231	goto out;
	232	done:
	233	if (dp->b_active != 2) {
	234	dp->b_forw = NULL;
	235	if (um->um_tab.b_actf == NULL)
	236	um->um_tab.b_actf = dp;
	237	else
	238	um->um_tab.b_actl->b_forw = dp;
	239	um->um_tab.b_actl = dp;
	240	dp->b_active = 2;
	241	}
	242	out:
	243	return (didie);
	244	}
d483c58c	245
0801d37f	246	rkstart(um)
89bd2f01	247	register struct uba_ctlr *um;
d483c58c	248	{
0801d37f	249	register struct buf bp, dp;
89bd2f01	250	register struct uba_device *ui;
0801d37f BJ	251	register struct rkdevice *rkaddr;
0801d37f BJ	252	struct rkst *st;
d483c58c	253	daddr_t bn;
0801d37f BJ	254	int sn, tn, cmd;
	255
	256	loop:
	257	if ((dp = um->um_tab.b_actf) == NULL)
	258	return (0);
	259	if ((bp = dp->b_actf) == NULL) {
	260	um->um_tab.b_actf = dp->b_forw;
	261	goto loop;
d483c58c	262	}
0801d37f BJ	263	um->um_tab.b_active++;
	264	ui = rkdinfo[dkunit(bp)];
	265	bn = dkblock(bp);
	266	st = &rkst[ui->ui_type];
	267	sn = bn%st->nspc;
	268	tn = sn/st->nsect;
	269	sn %= st->nsect;
	270	rkaddr = (struct rkdevice *)ui->ui_addr;
29a0409f	271	retry:
0801d37f BJ	272	rkaddr->rkcs1 = RK_CDT\|RK_CERR;
0801d37f BJ	273	rkaddr->rkcs2 = ui->ui_slave;
29a0409f	274	rkaddr->rkcs1 = RK_CDT\|RK_DCLR\|RK_GO;
0801d37f	275	rkwait(rkaddr);
29a0409f BJ	276	if ((rkaddr->rkds&RK_SVAL) == 0) {
	277	rknosval++;
	278	goto nosval;
	279	}
	280	if (rkaddr->rkds&RK_PIP) {
	281	rkpip++;
	282	goto retry;
28de6ed0 BJ	283	}
28de6ed0 BJ	284	if ((rkaddr->rkds&RK_DREADY) != RK_DREADY) {
68347e63	285	printf("rk%d: not ready", dkunit(bp));
28de6ed0 BJ	286	if ((rkaddr->rkds&RK_DREADY) != RK_DREADY) {
	287	printf("\n");
	288	rkaddr->rkcs1 = RK_CDT\|RK_DCLR\|RK_GO;
	289	rkwait(rkaddr);
	290	rkaddr->rkcs1 = RK_CDT\|RK_CERR;
	291	rkwait(rkaddr);
	292	um->um_tab.b_active = 0;
	293	um->um_tab.b_errcnt = 0;
	294	dp->b_actf = bp->av_forw;
	295	dp->b_active = 0;
	296	bp->b_flags \|= B_ERROR;
	297	iodone(bp);
	298	goto loop;
	299	}
	300	printf(" (came back!)\n");
	301	}
29a0409f	302	nosval:
0801d37f BJ	303	rkaddr->rkcyl = bp->b_cylin;
	304	rkcyl[ui->ui_unit] = bp->b_cylin;
	305	rkaddr->rkda = (tn << 8) + sn;
	306	rkaddr->rkwc = -bp->b_bcount / sizeof (short);
	307	if (bp->b_flags & B_READ)
	308	cmd = RK_CDT\|RK_IE\|RK_READ\|RK_GO;
	309	else
	310	cmd = RK_CDT\|RK_IE\|RK_WRITE\|RK_GO;
	311	um->um_cmd = cmd;
	312	ubago(ui);
	313	return (1);
d483c58c BJ	314	}
d483c58c BJ	315
0801d37f	316	rkdgo(um)
89bd2f01	317	register struct uba_ctlr *um;
d483c58c	318	{
0801d37f BJ	319	register struct rkdevice rkaddr = (struct rkdevice )um->um_addr;
	320
	321	rkaddr->rkba = um->um_ubinfo;
	322	rkaddr->rkcs1 = um->um_cmd\|((um->um_ubinfo>>8)&0x300);
	323	}
	324
443c8066	325	rkintr(rk11)
0801d37f BJ	326	int rk11;
0801d37f BJ	327	{
89bd2f01 BJ	328	register struct uba_ctlr *um = rkminfo[rk11];
89bd2f01 BJ	329	register struct uba_device *ui;
0801d37f BJ	330	register struct rkdevice rkaddr = (struct rkdevice )um->um_addr;
	331	register struct buf bp, dp;
	332	int unit;
	333	struct rk_softc *sc = &rk_softc[um->um_ctlr];
	334	int as = (rkaddr->rkatt >> 8) \| sc->sc_softas;
	335	int needie = 1;
	336
	337	sc->sc_wticks = 0;
	338	sc->sc_softas = 0;
	339	if (um->um_tab.b_active) {
29a0409f	340	ubadone(um);
0801d37f BJ	341	dp = um->um_tab.b_actf;
	342	bp = dp->b_actf;
	343	ui = rkdinfo[dkunit(bp)];
	344	dk_busy &= ~(1 << ui->ui_dk);
	345	if (rkaddr->rkcs1 & RK_CERR) {
	346	int recal;
	347	u_short ds = rkaddr->rkds;
	348	u_short cs2 = rkaddr->rkcs2;
	349	u_short er = rkaddr->rker;
ed687006	350	if (ds & RK_WLE) {
68347e63	351	printf("rk%d: write locked\n", dkunit(bp));
ed687006 BJ	352	bp->b_flags \|= B_ERROR;
ed687006 BJ	353	} else if (++um->um_tab.b_errcnt > 28 \|\|
736772ef	354	ds&RKDS_HARD \|\| er&RKER_HARD \|\| cs2&RKCS2_HARD) {
0801d37f	355	bp->b_flags \|= B_ERROR;
68347e63 BJ	356	harderr(bp, "rk");
68347e63 BJ	357	printf("cs2=%b ds=%b er=%b\n",
28de6ed0	358	cs2, RKCS2_BITS, ds,
736772ef BJ	359	RKDS_BITS, er, RKER_BITS);
736772ef BJ	360	} else
0801d37f	361	um->um_tab.b_active = 0;
0801d37f BJ	362	if (cs2&RK_MDS) {
	363	rkaddr->rkcs2 = RK_SCLR;
	364	goto retry;
	365	}
	366	recal = 0;
	367	if (ds&RK_DROT \|\| er&(RK_OPI\|RK_SKI\|RK_UNS) \|\|
	368	(um->um_tab.b_errcnt&07) == 4)
	369	recal = 1;
	370	if ((er & (RK_DCK\|RK_ECH)) == RK_DCK)
	371	if (rkecc(ui))
	372	return;
	373	rkaddr->rkcs1 = RK_CDT\|RK_CCLR;
	374	rkaddr->rkcs2 = ui->ui_slave;
	375	rkaddr->rkcs1 = RK_CDT\|RK_DCLR\|RK_GO;
	376	rkwait(rkaddr);
	377	if (recal && um->um_tab.b_active == 0) {
	378	rkaddr->rkcs1 = RK_CDT\|RK_IE\|RK_RECAL\|RK_GO;
	379	rkcyl[ui->ui_unit] = -1;
29a0409f BJ	380	sc->sc_recal = 0;
29a0409f BJ	381	goto nextrecal;
d483c58c	382	}
d483c58c	383	}
0801d37f	384	retry:
29a0409f BJ	385	switch (sc->sc_recal) {
	386
	387	case 1:
	388	rkaddr->rkcyl = bp->b_cylin;
	389	rkcyl[ui->ui_unit] = bp->b_cylin;
	390	rkaddr->rkcs1 = RK_CDT\|RK_IE\|RK_SEEK\|RK_GO;
	391	goto nextrecal;
	392
	393	case 2:
	394	if (um->um_tab.b_errcnt < 16 \|\|
	395	(bp->b_flags&B_READ) != 0)
	396	break;
	397	rkaddr->rkatt = rk_offset[um->um_tab.b_errcnt & 017];
	398	rkaddr->rkcs1 = RK_CDT\|RK_IE\|RK_OFFSET\|RK_GO;
	399	/* fall into ... */
	400	nextrecal:
	401	sc->sc_recal++;
	402	rkwait(rkaddr);
	403	um->um_tab.b_active = 1;
	404	return;
	405
	406	case 3:
0801d37f BJ	407	sc->sc_recal = 0;
0801d37f BJ	408	um->um_tab.b_active = 0;
29a0409f	409	break;
d483c58c	410	}
0801d37f BJ	411	if (um->um_tab.b_active) {
	412	um->um_tab.b_active = 0;
	413	um->um_tab.b_errcnt = 0;
	414	um->um_tab.b_actf = dp->b_forw;
	415	dp->b_active = 0;
	416	dp->b_errcnt = 0;
	417	dp->b_actf = bp->av_forw;
	418	bp->b_resid = -rkaddr->rkwc * sizeof(short);
	419	iodone(bp);
	420	if (dp->b_actf)
	421	if (rkustart(ui))
	422	needie = 0;
d483c58c	423	}
0801d37f	424	as &= ~(1<<ui->ui_slave);
d483c58c	425	}
0801d37f	426	for (unit = 0; as; as >>= 1, unit++)
89bd2f01 BJ	427	if (as & 1) {
	428	ui = rkip[rk11][unit];
	429	if (ui) {
	430	if (rkustart(rkip[rk11][unit]))
	431	needie = 0;
	432	} else {
	433	rkaddr->rkcs1 = RK_CERR\|RK_CDT;
	434	rkaddr->rkcs2 = unit;
	435	rkaddr->rkcs1 = RK_CDT\|RK_DCLR\|RK_GO;
	436	rkwait(rkaddr);
	437	}
	438	}
0801d37f BJ	439	if (um->um_tab.b_actf && um->um_tab.b_active == 0)
	440	if (rkstart(um))
	441	needie = 0;
	442	if (needie)
	443	rkaddr->rkcs1 = RK_CDT\|RK_IE;
d483c58c BJ	444	}
d483c58c BJ	445
0801d37f BJ	446	rkwait(addr)
	447	register struct rkdevice *addr;
	448	{
	449
	450	while ((addr->rkcs1 & RK_CRDY) == 0)
	451	;
	452	}
d483c58c	453
0801d37f BJ	454	rkread(dev)
0801d37f BJ	455	dev_t dev;
d483c58c	456	{
0801d37f BJ	457	register int unit = minor(dev) >> 3;
0801d37f BJ	458
872b4e09	459	if (unit >= NRK)
0801d37f BJ	460	u.u_error = ENXIO;
	461	else
	462	physio(rkstrategy, &rrkbuf[unit], dev, B_READ, minphys);
d483c58c BJ	463	}
d483c58c BJ	464
0801d37f BJ	465	rkwrite(dev)
0801d37f BJ	466	dev_t dev;
d483c58c	467	{
0801d37f	468	register int unit = minor(dev) >> 3;
d483c58c	469
872b4e09	470	if (unit >= NRK)
0801d37f BJ	471	u.u_error = ENXIO;
	472	else
	473	physio(rkstrategy, &rrkbuf[unit], dev, B_WRITE, minphys);
d483c58c BJ	474	}
d483c58c BJ	475
0801d37f	476	rkecc(ui)
89bd2f01	477	register struct uba_device *ui;
d483c58c	478	{
0801d37f BJ	479	register struct rkdevice rk = (struct rkdevice )ui->ui_addr;
0801d37f BJ	480	register struct buf *bp = rkutab[ui->ui_unit].b_actf;
89bd2f01	481	register struct uba_ctlr *um = ui->ui_mi;
0801d37f BJ	482	register struct rkst *st;
	483	struct uba_regs *ubp = ui->ui_hd->uh_uba;
	484	register int i;
	485	caddr_t addr;
	486	int reg, bit, byte, npf, mask, o, cmd, ubaddr;
	487	int bn, cn, tn, sn;
d483c58c	488
0801d37f BJ	489	npf = btop((rk->rkwc * sizeof(short)) + bp->b_bcount) - 1;
	490	reg = btop(um->um_ubinfo&0x3ffff) + npf;
	491	o = (int)bp->b_un.b_addr & PGOFSET;
1c509b5e	492	printf("rk%d%c: soft ecc sn%d\n", dkunit(bp),
c9e9b65b	493	'a'+(minor(bp->b_dev)&07), bp->b_blkno + npf);
0801d37f	494	mask = rk->rkec2;
060afaf6	495	ubapurge(um);
0801d37f BJ	496	i = rk->rkec1 - 1; /* -1 makes 0 origin */
	497	bit = i&07;
	498	i = (i&~07)>>3;
	499	byte = i + o;
	500	while (i < 512 && (int)ptob(npf)+i < bp->b_bcount && bit > -11) {
	501	addr = ptob(ubp->uba_map[reg+btop(byte)].pg_pfnum)+
	502	(byte & PGOFSET);
	503	putmemc(addr, getmemc(addr)^(mask<<bit));
	504	byte++;
	505	i++;
	506	bit -= 8;
	507	}
	508	um->um_tab.b_active++; /* Either complete or continuing... */
	509	if (rk->rkwc == 0)
	510	return (0);
9037157b BJ	511	#ifdef notdef
	512	rk->rkcs1 \|= RK_GO;
	513	#else
0801d37f BJ	514	rk->rkcs1 = RK_CDT\|RK_CCLR;
	515	rk->rkcs2 = ui->ui_slave;
	516	rk->rkcs1 = RK_CDT\|RK_DCLR\|RK_GO;
	517	rkwait(rk);
	518	bn = dkblock(bp);
	519	st = &rkst[ui->ui_type];
	520	cn = bp->b_cylin;
	521	sn = bn%st->nspc + npf + 1;
	522	tn = sn/st->nsect;
	523	sn %= st->nsect;
	524	cn += tn/st->ntrak;
	525	tn %= st->ntrak;
	526	rk->rkcyl = cn;
	527	rk->rkda = (tn << 8) \| sn;
	528	ubaddr = (int)ptob(reg+1) + o;
	529	rk->rkba = ubaddr;
	530	cmd = (ubaddr >> 8) & 0x300;
	531	cmd \|= RK_CDT\|RK_IE\|RK_GO\|RK_READ;
	532	rk->rkcs1 = cmd;
9037157b	533	#endif
0801d37f	534	return (1);
d483c58c BJ	535	}
d483c58c BJ	536
0801d37f	537	rkreset(uban)
68347e63	538	int uban;
0801d37f	539	{
89bd2f01 BJ	540	register struct uba_ctlr *um;
89bd2f01 BJ	541	register struct uba_device *ui;
0801d37f	542	register rk11, unit;
0801d37f	543
872b4e09	544	for (rk11 = 0; rk11 < NHK; rk11++) {
0801d37f BJ	545	if ((um = rkminfo[rk11]) == 0 \|\| um->um_ubanum != uban \|\|
	546	um->um_alive == 0)
	547	continue;
68347e63	548	printf(" hk%d", rk11);
0801d37f BJ	549	um->um_tab.b_active = 0;
	550	um->um_tab.b_actf = um->um_tab.b_actl = 0;
	551	rk_softc[um->um_ctlr].sc_recal = 0;
	552	if (um->um_ubinfo) {
	553	printf("<%d>", (um->um_ubinfo>>28)&0xf);
	554	ubadone(um);
	555	}
872b4e09	556	for (unit = 0; unit < NHK; unit++) {
0801d37f BJ	557	if ((ui = rkdinfo[unit]) == 0)
	558	continue;
	559	if (ui->ui_alive == 0)
	560	continue;
	561	rkutab[unit].b_active = 0;
	562	(void) rkustart(ui);
	563	}
	564	(void) rkstart(um);
	565	}
	566	}
	567
0801d37f	568	rkwatch()
d483c58c	569	{
89bd2f01	570	register struct uba_ctlr *um;
0801d37f BJ	571	register rk11, unit;
0801d37f BJ	572	register struct rk_softc *sc;
d483c58c	573
7780575a	574	timeout(rkwatch, (caddr_t)0, hz);
872b4e09	575	for (rk11 = 0; rk11 < NHK; rk11++) {
0801d37f BJ	576	um = rkminfo[rk11];
	577	if (um == 0 \|\| um->um_alive == 0)
	578	continue;
	579	sc = &rk_softc[rk11];
	580	if (um->um_tab.b_active == 0) {
872b4e09	581	for (unit = 0; unit < NRK; unit++)
9037157b BJ	582	if (rkutab[unit].b_active &&
9037157b BJ	583	rkdinfo[unit]->ui_mi == um)
0801d37f BJ	584	goto active;
	585	sc->sc_wticks = 0;
	586	continue;
	587	}
	588	active:
	589	sc->sc_wticks++;
	590	if (sc->sc_wticks >= 20) {
	591	sc->sc_wticks = 0;
68347e63	592	printf("hk%d: lost interrupt\n", rk11);
872b4e09	593	ubareset(um->um_ubanum);
0801d37f BJ	594	}
0801d37f BJ	595	}
d483c58c	596	}
0ff318b2	597
0801d37f BJ	598	#define DBSIZE 20
	599
	600	rkdump(dev)
	601	dev_t dev;
0ff318b2	602	{
0801d37f BJ	603	struct rkdevice *rkaddr;
	604	char *start;
	605	int num, blk, unit;
	606	struct size *sizes;
	607	register struct uba_regs *uba;
89bd2f01	608	register struct uba_device *ui;
0801d37f BJ	609	register short *rp;
	610	struct rkst *st;
	611
	612	unit = minor(dev) >> 3;
c9e9b65b BJ	613	if (unit >= NRK)
c9e9b65b BJ	614	return (ENXIO);
0801d37f	615	#define phys(cast, addr) ((cast)((int)addr & 0x7fffffff))
89bd2f01	616	ui = phys(struct uba_device *, rkdinfo[unit]);
c9e9b65b BJ	617	if (ui->ui_alive == 0)
c9e9b65b BJ	618	return (ENXIO);
0801d37f BJ	619	uba = phys(struct uba_hd *, ui->ui_hd)->uh_physuba;
	620	#if VAX780
	621	if (cpu == VAX_780)
	622	ubainit(uba);
	623	#endif
	624	rkaddr = (struct rkdevice *)ui->ui_physaddr;
	625	num = maxfree;
	626	start = 0;
	627	rkaddr->rkcs1 = RK_CDT\|RK_CERR;
	628	rkaddr->rkcs2 = unit;
	629	rkaddr->rkcs1 = RK_CDT\|RK_DCLR\|RK_GO;
	630	rkwait(rkaddr);
	631	if ((rkaddr->rkds & RK_VV) == 0) {
	632	rkaddr->rkcs1 = RK_CDT\|RK_IE\|RK_PACK\|RK_GO;
	633	rkwait(rkaddr);
	634	}
	635	st = &rkst[ui->ui_type];
	636	sizes = phys(struct size *, st->sizes);
c9e9b65b BJ	637	if (dumplo < 0 \|\| dumplo + num >= sizes[minor(dev)&07].nblocks)
c9e9b65b BJ	638	return (EINVAL);
0801d37f BJ	639	while (num > 0) {
	640	register struct pte *io;
	641	register int i;
	642	int cn, sn, tn;
	643	daddr_t bn;
0ff318b2	644
0801d37f BJ	645	blk = num > DBSIZE ? DBSIZE : num;
	646	io = uba->uba_map;
	647	for (i = 0; i < blk; i++)
89bd2f01	648	(int )io++ = (btop(start)+i) \| (1<<21) \| UBAMR_MRV;
0801d37f BJ	649	(int )io = 0;
	650	bn = dumplo + btop(start);
	651	cn = bn/st->nspc + sizes[minor(dev)&07].cyloff;
	652	sn = bn%st->nspc;
	653	tn = sn/st->nsect;
	654	sn = sn%st->nsect;
	655	rkaddr->rkcyl = cn;
	656	rp = (short *) &rkaddr->rkda;
	657	*rp = (tn << 8) + sn;
	658	*--rp = 0;
	659	--rp = -blkNBPG / sizeof (short);
	660	*--rp = RK_CDT\|RK_GO\|RK_WRITE;
	661	rkwait(rkaddr);
c9e9b65b BJ	662	if (rkaddr->rkcs1 & RK_CERR)
c9e9b65b BJ	663	return (EIO);
0801d37f BJ	664	start += blk*NBPG;
	665	num -= blk;
	666	}
	667	return (0);
0ff318b2	668	}
d483c58c	669	#endif