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

/*	rk.c	4.27	81/03/09	*/

#include "rk.h"
#if NHK > 0
int	rkpip;		/* DEBUG */
int	rknosval;	/* DEBUG */
/*
 * 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?
 */
#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;
	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;
	(void) 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) {
				harderr(bp, "rk");
				printf("cs2=%b ds=%b er=%b\n",
				    cs2, RKCS2_BITS, ds, 
				    RKDS_BITS, er, RKER_BITS);
				bp->b_flags |= B_ERROR;
				sc->sc_recal = 0;
			} 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
a306546d	1	/* rk.c 4.27 81/03/09 */
d483c58c	2
66b4fb09	3	#include "rk.h"
872b4e09	4	#if NHK > 0
a0eab615 BJ	5	int rkpip; /* DEBUG */
a0eab615 BJ	6	int rknosval; /* DEBUG */
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	*/
d483c58c BJ	17	#include "../h/param.h"
	18	#include "../h/systm.h"
	19	#include "../h/buf.h"
	20	#include "../h/conf.h"
	21	#include "../h/dir.h"
	22	#include "../h/user.h"
	23	#include "../h/pte.h"
	24	#include "../h/map.h"
0801d37f	25	#include "../h/vm.h"
89bd2f01 BJ	26	#include "../h/ubareg.h"
89bd2f01 BJ	27	#include "../h/ubavar.h"
d483c58c	28	#include "../h/dk.h"
0801d37f BJ	29	#include "../h/cpu.h"
	30	#include "../h/cmap.h"
	31
	32	#include "../h/rkreg.h"
d483c58c	33
0801d37f BJ	34	struct rk_softc {
	35	int sc_softas;
	36	int sc_ndrive;
	37	int sc_wticks;
	38	int sc_recal;
872b4e09	39	} rk_softc[NHK];
0801d37f BJ	40
0801d37f BJ	41	/* THIS SHOULD BE READ OFF THE PACK, PER DRIVE */
c84ff1f9	42	struct size {
0801d37f	43	daddr_t nblocks;
d483c58c	44	int cyloff;
0801d37f BJ	45	} rk7_sizes[] ={
0801d37f BJ	46	15884, 0, /* A=cyl 0 thru 240 */
22717fbb BJ	47	10032, 241, /* B=cyl 241 thru 392 */
22717fbb BJ	48	53790, 0, /* C=cyl 0 thru 814 */
d483c58c BJ	49	0, 0,
	50	0, 0,
	51	0, 0,
0801d37f	52	27786, 393, /* G=cyl 393 thru 813 */
d483c58c	53	0, 0,
d483c58c	54	};
0801d37f BJ	55	/* END OF STUFF WHICH SHOULD BE READ IN PER DISK */
	56
	57	int rkprobe(), rkslave(), rkattach(), rkdgo(), rkintr();
89bd2f01 BJ	58	struct uba_ctlr *rkminfo[NHK];
	59	struct uba_device *rkdinfo[NRK];
	60	struct uba_device *rkip[NHK][4];
0801d37f BJ	61
	62	u_short rkstd[] = { 0777440, 0 };
	63	struct uba_driver hkdriver =
9037157b	64	{ rkprobe, rkslave, rkattach, rkdgo, rkstd, "rk", rkdinfo, "hk", rkminfo, 1 };
872b4e09 BJ	65	struct buf rkutab[NRK];
872b4e09 BJ	66	short rkcyl[NRK];
0801d37f BJ	67
	68	struct rkst {
	69	short nsect;
	70	short ntrak;
	71	short nspc;
	72	short ncyl;
	73	struct size *sizes;
	74	} rkst[] = {
	75	NRKSECT, NRKTRK, NRKSECT*NRKTRK, NRK7CYL, rk7_sizes,
	76	};
	77
	78	u_char rk_offset[16] =
	79	{ P400,M400,P400,M400,P800,M800,P800,M800,P1200,M1200,P1200,M1200,0,0,0,0 };
	80
872b4e09	81	struct buf rrkbuf[NRK];
0801d37f BJ	82
	83	#define b_cylin b_resid
	84
	85	#ifdef INTRLVE
	86	daddr_t dkblock();
	87	#endif
	88
	89	int rkwstart, rkwatch();
	90
	91	rkprobe(reg)
	92	caddr_t reg;
	93	{
	94	register int br, cvec;
	95
	96	#ifdef lint
	97	br = 0; cvec = br; br = cvec;
	98	#endif
	99	((struct rkdevice *)reg)->rkcs1 = RK_CDT\|RK_IE\|RK_CRDY;
	100	DELAY(10);
	101	((struct rkdevice *)reg)->rkcs1 = RK_CDT;
	102	return (1);
	103	}
	104
	105	rkslave(ui, reg)
89bd2f01	106	struct uba_device *ui;
0801d37f BJ	107	caddr_t reg;
	108	{
	109	register struct rkdevice rkaddr = (struct rkdevice )reg;
	110
28de6ed0	111	rkaddr->rkcs1 = RK_CDT\|RK_CCLR;
0801d37f	112	rkaddr->rkcs2 = ui->ui_slave;
29a0409f	113	rkaddr->rkcs1 = RK_CDT\|RK_DCLR\|RK_GO;
9037157b	114	rkwait(rkaddr);
28de6ed0 BJ	115	DELAY(50);
28de6ed0 BJ	116	if (rkaddr->rkcs2&RK_NED \|\| (rkaddr->rkds&RK_SVAL) == 0) {
0801d37f BJ	117	rkaddr->rkcs1 = RK_CDT\|RK_CCLR;
	118	return (0);
	119	}
	120	return (1);
	121	}
d483c58c	122
0801d37f	123	rkattach(ui)
89bd2f01	124	register struct uba_device *ui;
0801d37f BJ	125	{
	126
	127	if (rkwstart == 0) {
7780575a	128	timeout(rkwatch, (caddr_t)0, hz);
0801d37f BJ	129	rkwstart++;
	130	}
	131	if (ui->ui_dk >= 0)
7780575a	132	dk_mspw[ui->ui_dk] = 1.0 / (60 * NRKSECT * 256);
0801d37f BJ	133	rkip[ui->ui_ctlr][ui->ui_slave] = ui;
	134	rk_softc[ui->ui_ctlr].sc_ndrive++;
	135	rkcyl[ui->ui_unit] = -1;
	136	}
	137
d483c58c	138	rkstrategy(bp)
0801d37f	139	register struct buf *bp;
d483c58c	140	{
89bd2f01	141	register struct uba_device *ui;
0801d37f BJ	142	register struct rkst *st;
	143	register int unit;
	144	register struct buf *dp;
	145	int xunit = minor(bp->b_dev) & 07;
	146	long bn, sz;
	147
	148	sz = (bp->b_bcount+511) >> 9;
	149	unit = dkunit(bp);
872b4e09	150	if (unit >= NRK)
0801d37f BJ	151	goto bad;
	152	ui = rkdinfo[unit];
	153	if (ui == 0 \|\| ui->ui_alive == 0)
	154	goto bad;
	155	st = &rkst[ui->ui_type];
	156	if (bp->b_blkno < 0 \|\|
	157	(bn = dkblock(bp))+sz > st->sizes[xunit].nblocks)
	158	goto bad;
	159	bp->b_cylin = bn/st->nspc + st->sizes[xunit].cyloff;
	160	(void) spl5();
	161	dp = &rkutab[ui->ui_unit];
	162	disksort(dp, bp);
	163	if (dp->b_active == 0) {
	164	(void) rkustart(ui);
	165	bp = &ui->ui_mi->um_tab;
	166	if (bp->b_actf && bp->b_active == 0)
	167	(void) rkstart(ui->ui_mi);
d483c58c	168	}
0801d37f BJ	169	(void) spl0();
	170	return;
	171
	172	bad:
	173	bp->b_flags \|= B_ERROR;
	174	iodone(bp);
	175	return;
d483c58c BJ	176	}
d483c58c BJ	177
0801d37f	178	rkustart(ui)
89bd2f01	179	register struct uba_device *ui;
0801d37f BJ	180	{
0801d37f BJ	181	register struct buf bp, dp;
89bd2f01	182	register struct uba_ctlr *um;
0801d37f	183	register struct rkdevice *rkaddr;
0801d37f BJ	184	int didie = 0;
	185
	186	if (ui == 0)
	187	return (0);
	188	dk_busy &= ~(1<<ui->ui_dk);
	189	dp = &rkutab[ui->ui_unit];
0801d37f	190	um = ui->ui_mi;
28de6ed0	191	rkaddr = (struct rkdevice *)um->um_addr;
0801d37f BJ	192	if (um->um_tab.b_active) {
	193	rk_softc[um->um_ctlr].sc_softas \|= 1<<ui->ui_slave;
	194	return (0);
	195	}
0801d37f BJ	196	rkaddr->rkcs1 = RK_CDT\|RK_CERR;
0801d37f BJ	197	rkaddr->rkcs2 = ui->ui_slave;
29a0409f	198	rkaddr->rkcs1 = RK_CDT\|RK_DCLR\|RK_GO;
0801d37f	199	rkwait(rkaddr);
736f0c13 BJ	200	if ((bp = dp->b_actf) == NULL) {
	201	rkaddr->rkcs1 = RK_CDT\|RK_DCLR\|RK_GO;
	202	rkwait(rkaddr);
	203	return (0);
	204	}
0801d37f BJ	205	if ((rkaddr->rkds & RK_VV) == 0) {
0801d37f BJ	206	/* SHOULD WARN SYSTEM THAT THIS HAPPENED */
28de6ed0	207	rkaddr->rkcs1 = RK_CDT\|RK_PACK\|RK_GO;
0801d37f	208	rkwait(rkaddr);
0801d37f	209	}
736f0c13 BJ	210	if (dp->b_active)
	211	goto done;
	212	dp->b_active = 1;
28de6ed0 BJ	213	if ((rkaddr->rkds & RK_DREADY) != RK_DREADY)
28de6ed0 BJ	214	goto done;
0801d37f BJ	215	if (rk_softc[um->um_ctlr].sc_ndrive == 1)
	216	goto done;
	217	if (bp->b_cylin == rkcyl[ui->ui_unit])
	218	goto done;
	219	rkaddr->rkcyl = bp->b_cylin;
	220	rkcyl[ui->ui_unit] = bp->b_cylin;
	221	rkaddr->rkcs1 = RK_CDT\|RK_IE\|RK_SEEK\|RK_GO;
	222	didie = 1;
	223	if (ui->ui_dk >= 0) {
	224	dk_busy \|= 1<<ui->ui_dk;
	225	dk_seek[ui->ui_dk]++;
	226	}
	227	goto out;
	228	done:
	229	if (dp->b_active != 2) {
	230	dp->b_forw = NULL;
	231	if (um->um_tab.b_actf == NULL)
	232	um->um_tab.b_actf = dp;
	233	else
	234	um->um_tab.b_actl->b_forw = dp;
	235	um->um_tab.b_actl = dp;
	236	dp->b_active = 2;
	237	}
	238	out:
	239	return (didie);
	240	}
d483c58c	241
0801d37f	242	rkstart(um)
89bd2f01	243	register struct uba_ctlr *um;
d483c58c	244	{
0801d37f	245	register struct buf bp, dp;
89bd2f01	246	register struct uba_device *ui;
0801d37f BJ	247	register struct rkdevice *rkaddr;
0801d37f BJ	248	struct rkst *st;
d483c58c	249	daddr_t bn;
0801d37f BJ	250	int sn, tn, cmd;
	251
	252	loop:
	253	if ((dp = um->um_tab.b_actf) == NULL)
	254	return (0);
	255	if ((bp = dp->b_actf) == NULL) {
	256	um->um_tab.b_actf = dp->b_forw;
	257	goto loop;
d483c58c	258	}
0801d37f BJ	259	um->um_tab.b_active++;
	260	ui = rkdinfo[dkunit(bp)];
	261	bn = dkblock(bp);
	262	st = &rkst[ui->ui_type];
	263	sn = bn%st->nspc;
	264	tn = sn/st->nsect;
	265	sn %= st->nsect;
	266	rkaddr = (struct rkdevice *)ui->ui_addr;
29a0409f	267	retry:
0801d37f BJ	268	rkaddr->rkcs1 = RK_CDT\|RK_CERR;
0801d37f BJ	269	rkaddr->rkcs2 = ui->ui_slave;
29a0409f	270	rkaddr->rkcs1 = RK_CDT\|RK_DCLR\|RK_GO;
0801d37f	271	rkwait(rkaddr);
29a0409f BJ	272	if ((rkaddr->rkds&RK_SVAL) == 0) {
	273	rknosval++;
	274	goto nosval;
	275	}
	276	if (rkaddr->rkds&RK_PIP) {
	277	rkpip++;
	278	goto retry;
28de6ed0 BJ	279	}
28de6ed0 BJ	280	if ((rkaddr->rkds&RK_DREADY) != RK_DREADY) {
68347e63	281	printf("rk%d: not ready", dkunit(bp));
28de6ed0 BJ	282	if ((rkaddr->rkds&RK_DREADY) != RK_DREADY) {
	283	printf("\n");
	284	rkaddr->rkcs1 = RK_CDT\|RK_DCLR\|RK_GO;
	285	rkwait(rkaddr);
	286	rkaddr->rkcs1 = RK_CDT\|RK_CERR;
	287	rkwait(rkaddr);
	288	um->um_tab.b_active = 0;
	289	um->um_tab.b_errcnt = 0;
	290	dp->b_actf = bp->av_forw;
	291	dp->b_active = 0;
	292	bp->b_flags \|= B_ERROR;
	293	iodone(bp);
	294	goto loop;
	295	}
	296	printf(" (came back!)\n");
	297	}
29a0409f	298	nosval:
0801d37f BJ	299	rkaddr->rkcyl = bp->b_cylin;
	300	rkcyl[ui->ui_unit] = bp->b_cylin;
	301	rkaddr->rkda = (tn << 8) + sn;
	302	rkaddr->rkwc = -bp->b_bcount / sizeof (short);
	303	if (bp->b_flags & B_READ)
	304	cmd = RK_CDT\|RK_IE\|RK_READ\|RK_GO;
	305	else
	306	cmd = RK_CDT\|RK_IE\|RK_WRITE\|RK_GO;
	307	um->um_cmd = cmd;
a0eab615	308	(void) ubago(ui);
0801d37f	309	return (1);
d483c58c BJ	310	}
d483c58c BJ	311
0801d37f	312	rkdgo(um)
89bd2f01	313	register struct uba_ctlr *um;
d483c58c	314	{
0801d37f BJ	315	register struct rkdevice rkaddr = (struct rkdevice )um->um_addr;
	316
	317	rkaddr->rkba = um->um_ubinfo;
	318	rkaddr->rkcs1 = um->um_cmd\|((um->um_ubinfo>>8)&0x300);
	319	}
	320
443c8066	321	rkintr(rk11)
0801d37f BJ	322	int rk11;
0801d37f BJ	323	{
89bd2f01 BJ	324	register struct uba_ctlr *um = rkminfo[rk11];
89bd2f01 BJ	325	register struct uba_device *ui;
0801d37f BJ	326	register struct rkdevice rkaddr = (struct rkdevice )um->um_addr;
	327	register struct buf bp, dp;
	328	int unit;
	329	struct rk_softc *sc = &rk_softc[um->um_ctlr];
	330	int as = (rkaddr->rkatt >> 8) \| sc->sc_softas;
	331	int needie = 1;
	332
	333	sc->sc_wticks = 0;
	334	sc->sc_softas = 0;
	335	if (um->um_tab.b_active) {
29a0409f	336	ubadone(um);
0801d37f BJ	337	dp = um->um_tab.b_actf;
	338	bp = dp->b_actf;
	339	ui = rkdinfo[dkunit(bp)];
	340	dk_busy &= ~(1 << ui->ui_dk);
	341	if (rkaddr->rkcs1 & RK_CERR) {
	342	int recal;
	343	u_short ds = rkaddr->rkds;
	344	u_short cs2 = rkaddr->rkcs2;
	345	u_short er = rkaddr->rker;
ed687006	346	if (ds & RK_WLE) {
68347e63	347	printf("rk%d: write locked\n", dkunit(bp));
ed687006 BJ	348	bp->b_flags \|= B_ERROR;
ed687006 BJ	349	} else if (++um->um_tab.b_errcnt > 28 \|\|
736772ef	350	ds&RKDS_HARD \|\| er&RKER_HARD \|\| cs2&RKCS2_HARD) {
68347e63 BJ	351	harderr(bp, "rk");
68347e63 BJ	352	printf("cs2=%b ds=%b er=%b\n",
28de6ed0	353	cs2, RKCS2_BITS, ds,
736772ef	354	RKDS_BITS, er, RKER_BITS);
a306546d BJ	355	bp->b_flags \|= B_ERROR;
a306546d BJ	356	sc->sc_recal = 0;
736772ef	357	} else
0801d37f	358	um->um_tab.b_active = 0;
0801d37f BJ	359	if (cs2&RK_MDS) {
	360	rkaddr->rkcs2 = RK_SCLR;
	361	goto retry;
	362	}
	363	recal = 0;
	364	if (ds&RK_DROT \|\| er&(RK_OPI\|RK_SKI\|RK_UNS) \|\|
	365	(um->um_tab.b_errcnt&07) == 4)
	366	recal = 1;
	367	if ((er & (RK_DCK\|RK_ECH)) == RK_DCK)
	368	if (rkecc(ui))
	369	return;
	370	rkaddr->rkcs1 = RK_CDT\|RK_CCLR;
	371	rkaddr->rkcs2 = ui->ui_slave;
	372	rkaddr->rkcs1 = RK_CDT\|RK_DCLR\|RK_GO;
	373	rkwait(rkaddr);
	374	if (recal && um->um_tab.b_active == 0) {
	375	rkaddr->rkcs1 = RK_CDT\|RK_IE\|RK_RECAL\|RK_GO;
	376	rkcyl[ui->ui_unit] = -1;
29a0409f BJ	377	sc->sc_recal = 0;
29a0409f BJ	378	goto nextrecal;
d483c58c	379	}
d483c58c	380	}
0801d37f	381	retry:
29a0409f BJ	382	switch (sc->sc_recal) {
	383
	384	case 1:
	385	rkaddr->rkcyl = bp->b_cylin;
	386	rkcyl[ui->ui_unit] = bp->b_cylin;
	387	rkaddr->rkcs1 = RK_CDT\|RK_IE\|RK_SEEK\|RK_GO;
	388	goto nextrecal;
	389
	390	case 2:
	391	if (um->um_tab.b_errcnt < 16 \|\|
	392	(bp->b_flags&B_READ) != 0)
	393	break;
	394	rkaddr->rkatt = rk_offset[um->um_tab.b_errcnt & 017];
	395	rkaddr->rkcs1 = RK_CDT\|RK_IE\|RK_OFFSET\|RK_GO;
	396	/* fall into ... */
	397	nextrecal:
	398	sc->sc_recal++;
	399	rkwait(rkaddr);
	400	um->um_tab.b_active = 1;
	401	return;
	402
	403	case 3:
0801d37f BJ	404	sc->sc_recal = 0;
0801d37f BJ	405	um->um_tab.b_active = 0;
29a0409f	406	break;
d483c58c	407	}
0801d37f BJ	408	if (um->um_tab.b_active) {
	409	um->um_tab.b_active = 0;
	410	um->um_tab.b_errcnt = 0;
	411	um->um_tab.b_actf = dp->b_forw;
	412	dp->b_active = 0;
	413	dp->b_errcnt = 0;
	414	dp->b_actf = bp->av_forw;
	415	bp->b_resid = -rkaddr->rkwc * sizeof(short);
	416	iodone(bp);
	417	if (dp->b_actf)
	418	if (rkustart(ui))
	419	needie = 0;
d483c58c	420	}
0801d37f	421	as &= ~(1<<ui->ui_slave);
d483c58c	422	}
0801d37f	423	for (unit = 0; as; as >>= 1, unit++)
89bd2f01 BJ	424	if (as & 1) {
	425	ui = rkip[rk11][unit];
	426	if (ui) {
	427	if (rkustart(rkip[rk11][unit]))
	428	needie = 0;
	429	} else {
	430	rkaddr->rkcs1 = RK_CERR\|RK_CDT;
	431	rkaddr->rkcs2 = unit;
	432	rkaddr->rkcs1 = RK_CDT\|RK_DCLR\|RK_GO;
	433	rkwait(rkaddr);
	434	}
	435	}
0801d37f BJ	436	if (um->um_tab.b_actf && um->um_tab.b_active == 0)
	437	if (rkstart(um))
	438	needie = 0;
	439	if (needie)
	440	rkaddr->rkcs1 = RK_CDT\|RK_IE;
d483c58c BJ	441	}
d483c58c BJ	442
0801d37f BJ	443	rkwait(addr)
	444	register struct rkdevice *addr;
	445	{
	446
	447	while ((addr->rkcs1 & RK_CRDY) == 0)
	448	;
	449	}
d483c58c	450
0801d37f BJ	451	rkread(dev)
0801d37f BJ	452	dev_t dev;
d483c58c	453	{
0801d37f BJ	454	register int unit = minor(dev) >> 3;
0801d37f BJ	455
872b4e09	456	if (unit >= NRK)
0801d37f BJ	457	u.u_error = ENXIO;
	458	else
	459	physio(rkstrategy, &rrkbuf[unit], dev, B_READ, minphys);
d483c58c BJ	460	}
d483c58c BJ	461
0801d37f BJ	462	rkwrite(dev)
0801d37f BJ	463	dev_t dev;
d483c58c	464	{
0801d37f	465	register int unit = minor(dev) >> 3;
d483c58c	466
872b4e09	467	if (unit >= NRK)
0801d37f BJ	468	u.u_error = ENXIO;
	469	else
	470	physio(rkstrategy, &rrkbuf[unit], dev, B_WRITE, minphys);
d483c58c BJ	471	}
d483c58c BJ	472
0801d37f	473	rkecc(ui)
89bd2f01	474	register struct uba_device *ui;
d483c58c	475	{
0801d37f BJ	476	register struct rkdevice rk = (struct rkdevice )ui->ui_addr;
0801d37f BJ	477	register struct buf *bp = rkutab[ui->ui_unit].b_actf;
89bd2f01	478	register struct uba_ctlr *um = ui->ui_mi;
0801d37f BJ	479	register struct rkst *st;
	480	struct uba_regs *ubp = ui->ui_hd->uh_uba;
	481	register int i;
	482	caddr_t addr;
	483	int reg, bit, byte, npf, mask, o, cmd, ubaddr;
	484	int bn, cn, tn, sn;
d483c58c	485
0801d37f BJ	486	npf = btop((rk->rkwc * sizeof(short)) + bp->b_bcount) - 1;
	487	reg = btop(um->um_ubinfo&0x3ffff) + npf;
	488	o = (int)bp->b_un.b_addr & PGOFSET;
1c509b5e	489	printf("rk%d%c: soft ecc sn%d\n", dkunit(bp),
c9e9b65b	490	'a'+(minor(bp->b_dev)&07), bp->b_blkno + npf);
0801d37f	491	mask = rk->rkec2;
060afaf6	492	ubapurge(um);
0801d37f BJ	493	i = rk->rkec1 - 1; /* -1 makes 0 origin */
	494	bit = i&07;
	495	i = (i&~07)>>3;
	496	byte = i + o;
	497	while (i < 512 && (int)ptob(npf)+i < bp->b_bcount && bit > -11) {
	498	addr = ptob(ubp->uba_map[reg+btop(byte)].pg_pfnum)+
	499	(byte & PGOFSET);
	500	putmemc(addr, getmemc(addr)^(mask<<bit));
	501	byte++;
	502	i++;
	503	bit -= 8;
	504	}
	505	um->um_tab.b_active++; /* Either complete or continuing... */
	506	if (rk->rkwc == 0)
	507	return (0);
9037157b BJ	508	#ifdef notdef
	509	rk->rkcs1 \|= RK_GO;
	510	#else
0801d37f BJ	511	rk->rkcs1 = RK_CDT\|RK_CCLR;
	512	rk->rkcs2 = ui->ui_slave;
	513	rk->rkcs1 = RK_CDT\|RK_DCLR\|RK_GO;
	514	rkwait(rk);
	515	bn = dkblock(bp);
	516	st = &rkst[ui->ui_type];
	517	cn = bp->b_cylin;
	518	sn = bn%st->nspc + npf + 1;
	519	tn = sn/st->nsect;
	520	sn %= st->nsect;
	521	cn += tn/st->ntrak;
	522	tn %= st->ntrak;
	523	rk->rkcyl = cn;
	524	rk->rkda = (tn << 8) \| sn;
	525	ubaddr = (int)ptob(reg+1) + o;
	526	rk->rkba = ubaddr;
	527	cmd = (ubaddr >> 8) & 0x300;
	528	cmd \|= RK_CDT\|RK_IE\|RK_GO\|RK_READ;
	529	rk->rkcs1 = cmd;
9037157b	530	#endif
0801d37f	531	return (1);
d483c58c BJ	532	}
d483c58c BJ	533
0801d37f	534	rkreset(uban)
68347e63	535	int uban;
0801d37f	536	{
89bd2f01 BJ	537	register struct uba_ctlr *um;
89bd2f01 BJ	538	register struct uba_device *ui;
0801d37f	539	register rk11, unit;
0801d37f	540
872b4e09	541	for (rk11 = 0; rk11 < NHK; rk11++) {
0801d37f BJ	542	if ((um = rkminfo[rk11]) == 0 \|\| um->um_ubanum != uban \|\|
	543	um->um_alive == 0)
	544	continue;
68347e63	545	printf(" hk%d", rk11);
0801d37f BJ	546	um->um_tab.b_active = 0;
	547	um->um_tab.b_actf = um->um_tab.b_actl = 0;
	548	rk_softc[um->um_ctlr].sc_recal = 0;
	549	if (um->um_ubinfo) {
	550	printf("<%d>", (um->um_ubinfo>>28)&0xf);
	551	ubadone(um);
	552	}
872b4e09	553	for (unit = 0; unit < NHK; unit++) {
0801d37f BJ	554	if ((ui = rkdinfo[unit]) == 0)
	555	continue;
	556	if (ui->ui_alive == 0)
	557	continue;
	558	rkutab[unit].b_active = 0;
	559	(void) rkustart(ui);
	560	}
	561	(void) rkstart(um);
	562	}
	563	}
	564
0801d37f	565	rkwatch()
d483c58c	566	{
89bd2f01	567	register struct uba_ctlr *um;
0801d37f BJ	568	register rk11, unit;
0801d37f BJ	569	register struct rk_softc *sc;
d483c58c	570
7780575a	571	timeout(rkwatch, (caddr_t)0, hz);
872b4e09	572	for (rk11 = 0; rk11 < NHK; rk11++) {
0801d37f BJ	573	um = rkminfo[rk11];
	574	if (um == 0 \|\| um->um_alive == 0)
	575	continue;
	576	sc = &rk_softc[rk11];
	577	if (um->um_tab.b_active == 0) {
872b4e09	578	for (unit = 0; unit < NRK; unit++)
9037157b BJ	579	if (rkutab[unit].b_active &&
9037157b BJ	580	rkdinfo[unit]->ui_mi == um)
0801d37f BJ	581	goto active;
	582	sc->sc_wticks = 0;
	583	continue;
	584	}
	585	active:
	586	sc->sc_wticks++;
	587	if (sc->sc_wticks >= 20) {
	588	sc->sc_wticks = 0;
68347e63	589	printf("hk%d: lost interrupt\n", rk11);
872b4e09	590	ubareset(um->um_ubanum);
0801d37f BJ	591	}
0801d37f BJ	592	}
d483c58c	593	}
0ff318b2	594
0801d37f BJ	595	#define DBSIZE 20
	596
	597	rkdump(dev)
	598	dev_t dev;
0ff318b2	599	{
0801d37f BJ	600	struct rkdevice *rkaddr;
	601	char *start;
	602	int num, blk, unit;
	603	struct size *sizes;
	604	register struct uba_regs *uba;
89bd2f01	605	register struct uba_device *ui;
0801d37f BJ	606	register short *rp;
	607	struct rkst *st;
	608
	609	unit = minor(dev) >> 3;
c9e9b65b BJ	610	if (unit >= NRK)
c9e9b65b BJ	611	return (ENXIO);
0801d37f	612	#define phys(cast, addr) ((cast)((int)addr & 0x7fffffff))
89bd2f01	613	ui = phys(struct uba_device *, rkdinfo[unit]);
c9e9b65b BJ	614	if (ui->ui_alive == 0)
c9e9b65b BJ	615	return (ENXIO);
0801d37f BJ	616	uba = phys(struct uba_hd *, ui->ui_hd)->uh_physuba;
	617	#if VAX780
	618	if (cpu == VAX_780)
	619	ubainit(uba);
	620	#endif
	621	rkaddr = (struct rkdevice *)ui->ui_physaddr;
	622	num = maxfree;
	623	start = 0;
	624	rkaddr->rkcs1 = RK_CDT\|RK_CERR;
	625	rkaddr->rkcs2 = unit;
	626	rkaddr->rkcs1 = RK_CDT\|RK_DCLR\|RK_GO;
	627	rkwait(rkaddr);
	628	if ((rkaddr->rkds & RK_VV) == 0) {
	629	rkaddr->rkcs1 = RK_CDT\|RK_IE\|RK_PACK\|RK_GO;
	630	rkwait(rkaddr);
	631	}
	632	st = &rkst[ui->ui_type];
	633	sizes = phys(struct size *, st->sizes);
c9e9b65b BJ	634	if (dumplo < 0 \|\| dumplo + num >= sizes[minor(dev)&07].nblocks)
c9e9b65b BJ	635	return (EINVAL);
0801d37f BJ	636	while (num > 0) {
	637	register struct pte *io;
	638	register int i;
	639	int cn, sn, tn;
	640	daddr_t bn;
0ff318b2	641
0801d37f BJ	642	blk = num > DBSIZE ? DBSIZE : num;
	643	io = uba->uba_map;
	644	for (i = 0; i < blk; i++)
89bd2f01	645	(int )io++ = (btop(start)+i) \| (1<<21) \| UBAMR_MRV;
0801d37f BJ	646	(int )io = 0;
	647	bn = dumplo + btop(start);
	648	cn = bn/st->nspc + sizes[minor(dev)&07].cyloff;
	649	sn = bn%st->nspc;
	650	tn = sn/st->nsect;
	651	sn = sn%st->nsect;
	652	rkaddr->rkcyl = cn;
	653	rp = (short *) &rkaddr->rkda;
	654	*rp = (tn << 8) + sn;
	655	*--rp = 0;
	656	--rp = -blkNBPG / sizeof (short);
	657	*--rp = RK_CDT\|RK_GO\|RK_WRITE;
	658	rkwait(rkaddr);
c9e9b65b BJ	659	if (rkaddr->rkcs1 & RK_CERR)
c9e9b65b BJ	660	return (EIO);
0801d37f BJ	661	start += blk*NBPG;
	662	num -= blk;
	663	}
	664	return (0);
0ff318b2	665	}
d483c58c	666	#endif