-/* hp.c 4.28 81/03/09 */
+/* hp.c 4.42 81/11/18 */
+
+#ifdef HPDEBUG
+int hpdebug;
+#endif
+#ifdef HPBDEBUG
+int hpbdebug;
+#endif
#include "hp.h"
#if NHP > 0
/*
- * HP disk driver for RP0x+RM0x
+ * HP disk driver for RP0x+RMxx
*
* TODO:
- * check RM80 skip sector handling, esp when ECC's occur later
- * add reading of bad sector information and disk layout from sector 1
- * add bad sector forwarding code
- * check interaction with tape driver on same mba
- * check multiple drive handling
+ * check RM80 skip sector handling when ECC's occur later
* check offset recovery handling
* see if DCLR and/or RELEASE set attention status
+ * print bits of mr && mr2 symbolically
*/
#include "../h/param.h"
#include "../h/mtpr.h"
#include "../h/vm.h"
#include "../h/cmap.h"
+#include "../h/dkbad.h"
#include "../h/hpreg.h"
struct size {
daddr_t nblocks;
int cyloff;
-} hp_sizes[8] = {
+} hp6_sizes[8] = {
15884, 0, /* A=cyl 0 thru 37 */
33440, 38, /* B=cyl 38 thru 117 */
340670, 0, /* C=cyl 0 thru 814 */
0, 0,
0, 0,
0, 0,
- 291346, 118, /* G=cyl 118 thru 814 */
+#ifndef NOBADSECT
+ 291280, 118, /* G=cyl 118 thru 814 */
+#else
+ 291346, 118,
+#endif
0, 0,
-}, rm_sizes[8] = {
+}, rm3_sizes[8] = {
15884, 0, /* A=cyl 0 thru 99 */
33440, 100, /* B=cyl 100 thru 309 */
131680, 0, /* C=cyl 0 thru 822 */
- 2720, 291,
0, 0,
0, 0,
- 82080, 310, /* G=cyl 310 thru 822 */
+ 0, 0,
+#ifndef NOBADSECT
+ 81984, 310, /* G=cyl 310 thru 822 */
+#else
+ 82080, 310,
+#endif
0, 0,
}, rm5_sizes[8] = {
15884, 0, /* A=cyl 0 thru 26 */
33440, 27, /* B=cyl 27 thru 81 */
- 500992, 0, /* C=cyl 0 thru 823 */
+ 500384, 0, /* C=cyl 0 thru 822 */
15884, 562, /* D=cyl 562 thru 588 */
55936, 589, /* E=cyl 589 thru 680 */
- 86944, 681, /* F=cyl 681 thru 823 */
- 159296, 562, /* G=cyl 562 thru 823 */
+#ifndef NOBADSECT
+ 86240, 681, /* F=cyl 681 thru 822 */
+ 158592, 562, /* G=cyl 562 thru 822 */
+#else
+ 86636, 681,
+ 158688, 562,
+#endif
291346, 82, /* H=cyl 82 thru 561 */
}, rm80_sizes[8] = {
15884, 0, /* A=cyl 0 thru 36 */
0, 0,
0, 0,
82080, 115, /* G=cyl 115 thru 304 */
- 110236, 305, /* H=cyl 305 thru 558 */
+ 110143, 305, /* H=cyl 305 thru 558 */
+}, hp7_sizes[8] = {
+ 15844, 0, /* A=cyl 0 thru 9 */
+ 64000, 10, /* B=cyl 10 thru 49 */
+ 1008000,0, /* C=cyl 0 thru 629 */
+ 15884, 330, /* D=cyl 330 thru 339 */
+ 256000, 340, /* E=cyl 340 thru 499 */
+ 207850, 500, /* F=cyl 500 thru 629 */
+ 479850, 330, /* G=cyl 330 thru 629 */
+ 448000, 50, /* H=cyl 50 thru 329 */
};
/* END OF STUFF WHICH SHOULD BE READ IN PER DISK */
int hpRDIST = _hpRDIST;
short hptypes[] =
- { MBDT_RM03, MBDT_RM05, MBDT_RP06, MBDT_RM80, 0 };
+ { MBDT_RM03, MBDT_RM05, MBDT_RP06, MBDT_RM80, MBDT_RP05, MBDT_RP07, 0 };
struct mba_device *hpinfo[NHP];
int hpattach(),hpustart(),hpstart(),hpdtint();
struct mba_driver hpdriver =
short ncyl;
struct size *sizes;
} hpst[] = {
- 32, 5, 32*5, 823, rm_sizes, /* RM03 */
+ 32, 5, 32*5, 823, rm3_sizes, /* RM03 */
32, 19, 32*19, 823, rm5_sizes, /* RM05 */
- 22, 19, 22*19, 815, hp_sizes, /* RP06 */
- 31, 14, 31*14, 559, rm80_sizes /* RM80 */
+ 22, 19, 22*19, 815, hp6_sizes, /* RP06 */
+ 31, 14, 31*14, 559, rm80_sizes, /* RM80 */
+ 22, 19, 22*19, 411, hp6_sizes, /* RP05 */
+ 50, 32, 50*32, 630, hp7_sizes, /* RP07 */
};
u_char hp_offset[16] = {
};
struct buf rhpbuf[NHP];
+#ifndef NOBADSECT
+struct buf bhpbuf[NHP];
+struct dkbad hpbad[NHP];
+#endif
+char hpinit[NHP];
char hprecal[NHP];
#define b_cylin b_resid
{
register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv;
register struct buf *bp = mi->mi_tab.b_actf;
- register struct hpst *st;
+ register struct hpst *st = &hpst[mi->mi_type];
daddr_t bn;
int sn, dist;
+ hpaddr->hpcs1 = 0;
if ((hpaddr->hpcs1&HP_DVA) == 0)
return (MBU_BUSY);
- if ((hpaddr->hpds & HPDS_VV) == 0) {
+ if ((hpaddr->hpds & HPDS_VV) == 0 || hpinit[mi->mi_unit] == 0) {
+#ifndef NOBADSECT
+ struct buf *bbp = &bhpbuf[mi->mi_unit];
+#endif
+
+ hpinit[mi->mi_unit] = 1;
hpaddr->hpcs1 = HP_DCLR|HP_GO;
if (mi->mi_mba->mba_drv[0].mbd_as & (1<<mi->mi_drive))
printf("DCLR attn\n");
hpaddr->hpcs1 = HP_PRESET|HP_GO;
hpaddr->hpof = HPOF_FMT22;
mbclrattn(mi);
+#ifndef NOBADSECT
+ bbp->b_flags = B_READ|B_BUSY;
+ bbp->b_dev = bp->b_dev;
+ bbp->b_bcount = 512;
+ bbp->b_un.b_addr = (caddr_t)&hpbad[mi->mi_unit];
+ bbp->b_blkno = st->ncyl*st->nspc - st->nsect;
+ bbp->b_cylin = st->ncyl - 1;
+ mi->mi_tab.b_actf = bbp;
+ bbp->av_forw = bp;
+ bp = bbp;
+#endif
}
if (mi->mi_tab.b_active || mi->mi_hd->mh_ndrive == 1)
return (MBU_DODATA);
if ((hpaddr->hpds & HPDS_DREADY) != HPDS_DREADY)
return (MBU_DODATA);
- st = &hpst[mi->mi_type];
bn = dkblock(bp);
sn = bn%st->nspc;
sn = (sn+st->nsect-hpSDIST)%st->nsect;
sn %= st->nsect;
hpaddr->hpdc = bp->b_cylin;
hpaddr->hpda = (tn << 8) + sn;
+ return(0);
}
hpdtint(mi, mbsr)
register struct buf *bp = mi->mi_tab.b_actf;
int retry = 0;
+#ifndef NOBADSECT
+ if (bp->b_flags&B_BAD) {
+ if (hpecc(mi, CONT))
+ return(MBD_RESTARTED);
+ }
+#endif
if (hpaddr->hpds&HPDS_ERR || mbsr&MBSR_EBITS) {
+#ifdef HPDEBUG
+ if (hpdebug) {
+ int dc = hpaddr->hpdc, da = hpaddr->hpda;
+
+ printf("hperr: bp %x cyl %d blk %d as %o ",
+ bp, bp->b_cylin, bp->b_blkno,
+ hpaddr->hpas&0xff);
+ printf("dc %x da %x\n",dc&0xffff, da&0xffff);
+ printf("errcnt %d ", mi->mi_tab.b_errcnt);
+ printf("mbsr=%b ", mbsr, mbsr_bits);
+ printf("er1=%b er2=%b\n",
+ hpaddr->hper1, HPER1_BITS,
+ hpaddr->hper2, HPER2_BITS);
+ DELAY(1000000);
+ }
+#endif
if (hpaddr->hper1&HPER1_WLE) {
printf("hp%d: write locked\n", dkunit(bp));
bp->b_flags |= B_ERROR;
mbsr & MBSR_HARD ||
hpaddr->hper1 & HPER1_HARD ||
hpaddr->hper2 & HPER2_HARD) {
+hard:
harderr(bp, "hp");
- printf("mbsr=%b er1=%b er2=%b\n",
- mbsr, mbsr_bits,
+ if (mbsr & (MBSR_EBITS &~ (MBSR_DTABT|MBSR_MBEXC)))
+ printf("mbsr=%b ", mbsr, mbsr_bits);
+ printf("er1=%b er2=%b",
hpaddr->hper1, HPER1_BITS,
hpaddr->hper2, HPER2_BITS);
+ if (hpaddr->hpmr)
+ printf(" mr=%o", hpaddr->hpmr&0xffff);
+ if (hpaddr->hpmr2)
+ printf(" mr2=%o", hpaddr->hpmr2&0xffff);
+ printf("\n");
bp->b_flags |= B_ERROR;
- } else if (hpaddr->hper2&HPER2_SSE) {
- hpecc(mi, 1);
+ hprecal[mi->mi_unit] = 0;
+ } else if (hpaddr->hper2 & HPER2_BSE) {
+#ifndef NOBADSECT
+ if (hpecc(mi, BSE))
+ return(MBD_RESTARTED);
+ else
+#endif
+ goto hard;
+ } else if (hptypes[mi->mi_type] == MBDT_RM80 &&
+ hpaddr->hper2&HPER2_SSE) {
+ (void) hpecc(mi, SSE);
return (MBD_RESTARTED);
} else if ((hpaddr->hper1&(HPER1_DCK|HPER1_ECH))==HPER1_DCK) {
- if (hpecc(mi, 0))
+ if (hpecc(mi, ECC))
return (MBD_RESTARTED);
/* else done */
} else
hpaddr->hpcs1 = HP_DCLR|HP_GO;
if ((mi->mi_tab.b_errcnt&07) == 4) {
hpaddr->hpcs1 = HP_RECAL|HP_GO;
- hprecal[mi->mi_unit] = 0;
- goto nextrecal;
+ hprecal[mi->mi_unit] = 1;
+ return(MBD_RESTARTED);
}
if (retry)
return (MBD_RETRY);
}
+#ifdef HPDEBUG
+ else
+ if (hpdebug && hprecal[mi->mi_unit]) {
+ printf("recal %d ", hprecal[mi->mi_unit]);
+ printf("errcnt %d\n", mi->mi_tab.b_errcnt);
+ printf("mbsr=%b ", mbsr, mbsr_bits);
+ printf("er1=%b er2=%b\n",
+ hpaddr->hper1, HPER1_BITS,
+ hpaddr->hper2, HPER2_BITS);
+ }
+#endif
switch (hprecal[mi->mi_unit]) {
case 1:
hpaddr->hpdc = bp->b_cylin;
hpaddr->hpcs1 = HP_SEEK|HP_GO;
- goto nextrecal;
+ hprecal[mi->mi_unit]++;
+ return (MBD_RESTARTED);
case 2:
if (mi->mi_tab.b_errcnt < 16 ||
- (bp->b_flags & B_READ) != 0)
+ (bp->b_flags & B_READ) == 0)
goto donerecal;
hpaddr->hpof = hp_offset[mi->mi_tab.b_errcnt & 017]|HPOF_FMT22;
hpaddr->hpcs1 = HP_OFFSET|HP_GO;
- goto nextrecal;
- nextrecal:
hprecal[mi->mi_unit]++;
return (MBD_RESTARTED);
donerecal:
+ case 3:
hprecal[mi->mi_unit] = 0;
return (MBD_RETRY);
}
bp->b_resid = -(mi->mi_mba->mba_bcr) & 0xffff;
- if (mi->mi_tab.b_errcnt > 16) {
+ if (mi->mi_tab.b_errcnt >= 16) {
/*
* This is fast and occurs rarely; we don't
* bother with interrupts.
;
mbclrattn(mi);
}
+ hpaddr->hpof = HPOF_FMT22;
hpaddr->hpcs1 = HP_RELEASE|HP_GO;
- if (mi->mi_mba->mba_drv[0].mbd_as & (1<<mi->mi_drive))
- printf("REL attn\n");
- mbclrattn(mi);
return (MBD_DONE);
}
physio(hpstrategy, &rhpbuf[unit], dev, B_WRITE, minphys);
}
-/*ARGSUSED*/
-hpecc(mi, rm80sse)
+hpecc(mi, flag)
register struct mba_device *mi;
- int rm80sse;
+ int flag;
{
register struct mba_regs *mbp = mi->mi_mba;
register struct hpdevice *rp = (struct hpdevice *)mi->mi_drv;
register struct buf *bp = mi->mi_tab.b_actf;
- register struct hpst *st;
- register int i;
- caddr_t addr;
- int reg, bit, byte, npf, mask, o;
+ register struct hpst *st = &hpst[mi->mi_type];
+ int npf, o;
int bn, cn, tn, sn;
- struct pte mpte;
int bcr;
bcr = mbp->mba_bcr & 0xffff;
if (bcr)
bcr |= 0xffff0000; /* sxt */
- npf = btop(bcr + bp->b_bcount) - 1;
- reg = npf;
- if (rm80sse) {
- rp->hpof |= HPOF_SSEI;
- reg--; /* compensate in advance for reg+1 below */
- goto sse;
- }
+#ifndef NOBADSECT
+ if (flag == CONT)
+ npf = bp->b_error;
+ else
+#endif
+ npf = btop(bcr + bp->b_bcount);
o = (int)bp->b_un.b_addr & PGOFSET;
- printf("hp%d%c: soft ecc sn%d\n", dkunit(bp),
- 'a'+(minor(bp->b_dev)&07), bp->b_blkno + npf);
- mask = rp->hpec2&0xffff;
- i = (rp->hpec1&0xffff) - 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) {
- mpte = mbp->mba_map[reg+btop(byte)];
- addr = ptob(mpte.pg_pfnum) + (byte & PGOFSET);
- putmemc(addr, getmemc(addr)^(mask<<bit));
- byte++;
- i++;
- bit -= 8;
- }
- if (bcr == 0)
- return (0);
-#ifdef notdef
-sse:
- if (rpof&HPOF_SSEI)
- rp->hpda = rp->hpda + 1;
- rp->hper1 = 0;
- rp->hpcs1 = HP_RCOM|HP_GO;
-#else
-sse:
- rp->hpcs1 = HP_DCLR|HP_GO;
bn = dkblock(bp);
- st = &hpst[mi->mi_type];
cn = bp->b_cylin;
- sn = bn%(st->nspc) + npf + 1;
+ sn = bn%(st->nspc) + npf;
tn = sn/st->nsect;
sn %= st->nsect;
cn += tn/st->ntrak;
tn %= st->ntrak;
-#ifdef notdef
- if (rp->hpof&SSEI)
- sn++;
+ switch (flag) {
+ case ECC:
+ {
+ register int i;
+ caddr_t addr;
+ struct pte mpte;
+ int bit, byte, mask;
+
+ npf--; /* because block in error is previous block */
+ printf("hp%d%c: soft ecc sn%d\n", dkunit(bp),
+ 'a'+(minor(bp->b_dev)&07), bp->b_blkno + npf);
+ mask = rp->hpec2&0xffff;
+ i = (rp->hpec1&0xffff) - 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) {
+ mpte = mbp->mba_map[npf+btop(byte)];
+ addr = ptob(mpte.pg_pfnum) + (byte & PGOFSET);
+ putmemc(addr, getmemc(addr)^(mask<<bit));
+ byte++;
+ i++;
+ bit -= 8;
+ }
+ if (bcr == 0)
+ return (0);
+ npf++;
+ break;
+ }
+
+ case SSE:
+ rp->hpof |= HPOF_SSEI;
+ mbp->mba_bcr = -(bp->b_bcount - (int)ptob(npf));
+ break;
+
+#ifndef NOBADSECT
+ case BSE:
+#ifdef HPBDEBUG
+ if (hpbdebug)
+ printf("hpecc, BSE: bn %d cn %d tn %d sn %d\n", bn, cn, tn, sn);
+#endif
+ if ((bn = isbad(&hpbad[mi->mi_unit], cn, tn, sn)) < 0)
+ return(0);
+ bp->b_flags |= B_BAD;
+ bp->b_error = npf + 1;
+ bn = st->ncyl*st->nspc - st->nsect - 1 - bn;
+ cn = bn/st->nspc;
+ sn = bn%st->nspc;
+ tn = sn/st->nsect;
+ sn %= st->nsect;
+ mbp->mba_bcr = -512;
+#ifdef HPBDEBUG
+ if (hpbdebug)
+ printf("revector to cn %d tn %d sn %d\n", cn, tn, sn);
#endif
+ break;
+
+ case CONT:
+#ifdef HPBDEBUG
+ if (hpbdebug)
+ printf("hpecc, CONT: bn %d cn %d tn %d sn %d\n", bn,cn,tn,sn);
+#endif
+ npf = bp->b_error;
+ bp->b_flags &= ~B_BAD;
+ mbp->mba_bcr = -(bp->b_bcount - (int)ptob(npf));
+ if ((mbp->mba_bcr & 0xffff) == 0)
+ return(0);
+ break;
+#endif
+ }
+ rp->hpcs1 = HP_DCLR|HP_GO;
+ if (rp->hpof&HPOF_SSEI)
+ sn++;
rp->hpdc = cn;
rp->hpda = (tn<<8) + sn;
mbp->mba_sr = -1;
- mbp->mba_var = (int)ptob(reg+1) + o;
- rp->hpcs1 = HP_RCOM|HP_GO;
-#endif
+ mbp->mba_var = (int)ptob(npf) + o;
+ rp->hpcs1 = bp->b_flags&B_READ ? HP_RCOM|HP_GO : HP_WCOM|HP_GO;
+ mi->mi_tab.b_errcnt = 0; /* error has been corrected */
return (1);
}