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PDP11: Convert RK device to use sim_disk APIs

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As mentioned in #905
This commit is contained in:
Mark Pizzolato 2020-07-09 08:35:35 -07:00
parent 166852935d
commit e2d0095010
1 changed files with 69 additions and 17 deletions
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86
PDP11/pdp11_rk.c
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@ -77,6 +77,8 @@
#define RK_DIS 0
#endif
#include "sim_disk.h"
/* Constants */
#if defined (UC15)
@ -108,13 +110,29 @@
#define RK_SCPI(x) (2u << (x)) /* drive int */
#define RK_MAXFR (1 << 16) /* max transfer */
struct drvtyp {
int32 sect; /* sectors */
int32 surf; /* surfaces */
int32 cyl; /* cylinders */
int32 size; /* #blocks */
const char *name; /* device type name */
};
static struct drvtyp drv_tab[] = {
{ RK_NUMSC, RK_NUMSF, RK_NUMCY*2, RK_SIZE, "RK05" },
{ 0 }
};
/* Flags in the unit flags word */
#define UNIT_V_HWLK (UNIT_V_UF + 0) /* hwre write lock */
#define UNIT_V_SWLK (UNIT_V_UF + 1) /* swre write lock */
#define UNIT_V_HWLK (DKUF_V_WLK + 0) /* hwre write lock */
#define UNIT_V_SWLK (DKUF_V_WLK + 1) /* swre write lock */
#define UNIT_HWLK (1u << UNIT_V_HWLK)
#define UNIT_SWLK (1u << UNIT_V_SWLK)
#define UNIT_WPRT (UNIT_HWLK|UNIT_SWLK|UNIT_RO) /* write prot */
#define GET_DTYPE(x) (0)
/* Parameters in the unit descriptor */
@ -285,7 +303,7 @@ BITFIELD *rk_reg_bits[] = {
#define RKDEB_RWR 004 /* reg writes */
#define RKDEB_TRC 010 /* trace */
#define RKDEB_INT 020 /* interrupts */
#define RKDEB_DAT 0100 /* transfer data */
#define RK_MIN 10
@ -336,6 +354,9 @@ void rk_set_done (int32 error);
void rk_clr_done (void);
t_stat rk_boot (int32 unitno, DEVICE *dptr);
t_stat rk_help (FILE *st, DEVICE *dptr, UNIT *uptr, int32 flag, const char *cptr);
t_stat rk_show_type (FILE *st, UNIT *uptr, int32 val, CONST void *desc);
t_stat rk_attach (UNIT *uptr, CONST char *cptr);
t_stat rk_detach (UNIT *uptr);
const char *rk_description (DEVICE *dptr);
DEBTAB rk_deb[] = {
@ -407,6 +428,10 @@ MTAB rk_mod[] = {
NULL, NULL, NULL, "Write enable disk drive" },
{ UNIT_HWLK, UNIT_HWLK, "write locked", "LOCKED",
NULL, NULL, NULL, "Write lock disk drive" },
{ MTAB_XTD|MTAB_VUN, 0, "TYPE", NULL,
NULL, &rk_show_type, NULL, "Display device type" },
{ MTAB_XTD|MTAB_VUN|MTAB_VALR, 0, "FORMAT", "FORMAT={AUTO|SIMH|VHD|RAW}",
&sim_disk_set_fmt, &sim_disk_show_fmt, NULL, "Set/Display disk format" },
{ MTAB_XTD|MTAB_VDV|MTAB_VALR, 010, "ADDRESS", "ADDRESS",
&set_addr, &show_addr, NULL, "Bus address" },
{ MTAB_XTD|MTAB_VDV|MTAB_VALR, 0, "VECTOR", "VECTOR",
@ -418,8 +443,8 @@ DEVICE rk_dev = {
"RK", rk_unit, rk_reg, rk_mod,
RK_NUMDR, 8, 24, 1, 8, RKWRDSZ,
NULL, NULL, &rk_reset,
&rk_boot, NULL, NULL,
&rk_dib, DEV_DISABLE | DEV_UBUS | DEV_Q18 | DEV_DEBUG | RK_DIS, 0,
&rk_boot, &rk_attach, &rk_detach,
&rk_dib, DEV_DISABLE | DEV_UBUS | DEV_Q18 | DEV_DEBUG | RK_DIS | DEV_DISK, 0,
rk_deb, NULL, NULL, &rk_help, NULL, NULL,
&rk_description
};
@ -644,9 +669,11 @@ return;
t_stat rk_svc (UNIT *uptr)
{
int32 i, drv, err, awc, wc, cma, cda, t;
t_seccnt sectsread;
int32 da, cyl, track, sect;
uint32 ma;
RKCONTR comp;
DEVICE *dptr = find_dev_from_unit (uptr);
drv = (int32) (uptr - rk_dev.units); /* get drv number */
if (uptr->FUNC == RKCS_SEEK) { /* seek */
@ -688,7 +715,7 @@ if ((da + wc) > (int32) uptr->capac) { /* overrun? */
rker = rker | RKER_OVR; /* set overrun err */
}
err = fseek (uptr->fileref, da * sizeof (RKCONTR), SEEK_SET);
err = 0;
if (wc && (err == 0)) { /* seek ok? */
switch (uptr->FUNC) { /* case on function */
@ -705,10 +732,8 @@ if (wc && (err == 0)) { /* seek ok? */
} /* end for wc */
} /* end if format */
else { /* normal read */
i = fxread (rkxb, sizeof (RKCONTR), wc, uptr->fileref);
err = ferror (uptr->fileref); /* read file */
for ( ; i < wc; i++) /* fill buf */
rkxb[i] = 0;
err = sim_disk_rdsect (uptr, da/RK_NUMWD, (uint8 *)rkxb, &sectsread, (wc + RK_NUMWD - 1)/RK_NUMWD);
sim_disk_data_trace (uptr, (uint8 *)rkxb, da/RK_NUMWD, sectsread*RK_NUMWD*sizeof(*rkxb), "sim_disk_rdsect", RKDEB_DAT & dptr->dctrl, RKDEB_OPS);
}
if (rkcs & RKCS_INH) { /* incr inhibit? */
if ((t = MAP_WRW (ma, 2, &rkxb[wc - 1]))) { /* store last */
@ -743,19 +768,18 @@ if (wc && (err == 0)) { /* seek ok? */
awc = (wc + (RK_NUMWD - 1)) & ~(RK_NUMWD - 1); /* clr to */
for (i = wc; i < awc; i++) /* end of blk */
rkxb[i] = 0;
fxwrite (rkxb, sizeof (RKCONTR), awc, uptr->fileref);
err = ferror (uptr->fileref);
sim_disk_data_trace (uptr, (uint8 *)rkxb, da/RK_NUMWD, awc, "sim_disk_wrsect", RKDEB_DAT & dptr->dctrl, RKDEB_OPS);
err = sim_disk_wrsect (uptr, da/RK_NUMWD, (uint8 *)rkxb, NULL, awc/RK_NUMWD);
}
break; /* end write */
case RKCS_WCHK: /* write check */
i = fxread (rkxb, sizeof (RKCONTR), wc, uptr->fileref);
if ((err = ferror (uptr->fileref))) { /* read error? */
err = sim_disk_rdsect (uptr, da/RK_NUMWD, (uint8 *)rkxb, &sectsread, (wc + RK_NUMWD - 1)/RK_NUMWD);
sim_disk_data_trace (uptr, (uint8 *)rkxb, da/RK_NUMWD, sectsread*RK_NUMWD*sizeof(*rkxb), "sim_disk_rdsect", RKDEB_DAT & dptr->dctrl, RKDEB_OPS);
if (err) { /* read error? */
wc = 0; /* no transfer */
break;
}
for ( ; i < wc; i++) /* fill buf */
rkxb[i] = 0;
awc = wc; /* save wc */
for (wc = 0, cma = ma; wc < awc; wc++) { /* loop thru buf */
if (MAP_RDW (cma, 2, &comp)) { /* mem wd */
@ -792,7 +816,6 @@ rk_set_done (0);
if (err != 0) { /* error? */
sim_perror ("RK I/O error");
clearerr (uptr->fileref);
return SCPE_IOERR;
}
return SCPE_OK;
@ -883,6 +906,35 @@ if (rkxb == NULL)
return auto_config (0, 0);
}
/* Attach routine */
t_stat rk_attach (UNIT *uptr, CONST char *cptr)
{
t_stat r;
r = sim_disk_attach_ex (uptr, cptr, RK_NUMWD * sizeof (uint16),
sizeof (uint16), TRUE, 0,
"RK05", 0, 0, NULL);
if (r != SCPE_OK) /* error? */
return r;
return SCPE_OK;
}
t_stat rk_detach (UNIT *uptr)
{
sim_cancel (uptr);
return sim_disk_detach (uptr);
}
/* Show unit type */
t_stat rk_show_type (FILE *st, UNIT *uptr, int32 val, CONST void *desc)
{
fprintf (st, "%s", drv_tab[GET_DTYPE (uptr->flags)].name);
return SCPE_OK;
}
/* Device bootstrap */
#if defined (UC15) || !defined (VM_PDP11)