blob: e5e1a9445a07833591f3f98967873835d0651818 [file] [log] [blame] [raw]
/* pdp8_ttx.c: PDP-8 additional terminals simulator
Copyright (c) 1993-2005, Robert M Supnik
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of Robert M Supnik shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from Robert M Supnik.
ttix,ttox PT08/KL8JA terminal input/output
29-Jun-05 RMS Added SET TTOXn DISCONNECT
Fixed bug in SET LOG/NOLOG
21-Jun-05 RMS Fixed bug in SHOW CONN/STATS
05-Jan-04 RMS Revised for tmxr library changes
09-May-03 RMS Added network device flag
25-Apr-03 RMS Revised for extended file support
22-Dec-02 RMS Added break support
02-Nov-02 RMS Added 7B/8B support
04-Oct-02 RMS Added DIB, device number support
22-Aug-02 RMS Updated for changes to sim_tmxr.c
06-Jan-02 RMS Added device enable/disable support
30-Dec-01 RMS Complete rebuild
30-Nov-01 RMS Added extended SET/SHOW support
This module implements four individual serial interfaces similar in function
to the console. These interfaces are mapped to Telnet based connections as
though they were the four lines of a terminal multiplexor. The connection
polling mechanism is superimposed onto the keyboard of the first interface.
*/
#include "pdp8_defs.h"
#include "sim_sock.h"
#include "sim_tmxr.h"
#include <ctype.h>
#define TTX_LINES 4
#define TTX_MASK (TTX_LINES - 1)
#define UNIT_V_8B (UNIT_V_UF + 0) /* 8B */
#define UNIT_V_UC (UNIT_V_UF + 1) /* upper case */
#define UNIT_8B (1 << UNIT_V_8B)
#define UNIT_UC (1 << UNIT_V_UC)
#define TTX_GETLN(x) (((x) >> 4) & TTX_MASK)
extern int32 int_req, int_enable, dev_done, stop_inst;
uint8 ttix_buf[TTX_LINES] = { 0 }; /* input buffers */
uint8 ttox_buf[TTX_LINES] = { 0 }; /* output buffers */
int32 ttx_tps = 100; /* polls per second */
TMLN ttx_ldsc[TTX_LINES] = { 0 }; /* line descriptors */
TMXR ttx_desc = { TTX_LINES, 0, 0, ttx_ldsc }; /* mux descriptor */
DEVICE ttix_dev, ttox_dev;
int32 ttix (int32 IR, int32 AC);
int32 ttox (int32 IR, int32 AC);
t_stat ttix_svc (UNIT *uptr);
t_stat ttix_reset (DEVICE *dptr);
t_stat ttox_svc (UNIT *uptr);
t_stat ttox_reset (DEVICE *dptr);
t_stat ttx_attach (UNIT *uptr, char *cptr);
t_stat ttx_detach (UNIT *uptr);
t_stat ttx_summ (FILE *st, UNIT *uptr, int32 val, void *desc);
t_stat ttx_show (FILE *st, UNIT *uptr, int32 val, void *desc);
void ttx_enbdis (int32 dis);
/* TTIx data structures
ttix_dev TTIx device descriptor
ttix_unit TTIx unit descriptor
ttix_reg TTIx register list
ttix_mod TTIx modifiers list
*/
DIB ttix_dib = { DEV_KJ8, 8,
{ &ttix, &ttox, &ttix, &ttox, &ttix, &ttox, &ttix, &ttox } };
UNIT ttix_unit = { UDATA (&ttix_svc, UNIT_ATTABLE, 0), KBD_POLL_WAIT };
REG ttix_reg[] = {
{ BRDATA (BUF, ttix_buf, 8, 8, TTX_LINES) },
{ GRDATA (DONE, dev_done, 8, TTX_LINES, INT_V_TTI1) },
{ GRDATA (ENABLE, int_enable, 8, TTX_LINES, INT_V_TTI1) },
{ GRDATA (INT, int_req, 8, TTX_LINES, INT_V_TTI1) },
{ DRDATA (TIME, ttix_unit.wait, 24), REG_NZ + PV_LEFT },
{ DRDATA (TPS, ttx_tps, 10), REG_NZ + PV_LEFT },
{ ORDATA (DEVNUM, ttix_dib.dev, 6), REG_HRO },
{ NULL }
};
MTAB ttix_mod[] = {
{ UNIT_ATT, UNIT_ATT, "summary", NULL, NULL, &ttx_summ },
{ MTAB_XTD | MTAB_VDV, 1, NULL, "DISCONNECT",
&tmxr_dscln, NULL, &ttx_desc },
{ MTAB_XTD | MTAB_VDV | MTAB_NMO, 1, "CONNECTIONS", NULL,
NULL, &ttx_show, NULL },
{ MTAB_XTD | MTAB_VDV | MTAB_NMO, 0, "STATISTICS", NULL,
NULL, &ttx_show, NULL },
{ MTAB_XTD|MTAB_VDV, 0, "DEVNO", "DEVNO",
&set_dev, &show_dev, NULL },
{ 0 }
};
DEVICE ttix_dev = {
"TTIX", &ttix_unit, ttix_reg, ttix_mod,
1, 10, 31, 1, 8, 8,
&tmxr_ex, &tmxr_dep, &ttix_reset,
NULL, &ttx_attach, &ttx_detach,
&ttix_dib, DEV_NET | DEV_DISABLE
};
/* TTOx data structures
ttox_dev TTOx device descriptor
ttox_unit TTOx unit descriptor
ttox_reg TTOx register list
*/
UNIT ttox_unit[] = {
{ UDATA (&ttox_svc, UNIT_UC, 0), SERIAL_OUT_WAIT },
{ UDATA (&ttox_svc, UNIT_UC, 0), SERIAL_OUT_WAIT },
{ UDATA (&ttox_svc, UNIT_UC, 0), SERIAL_OUT_WAIT },
{ UDATA (&ttox_svc, UNIT_UC, 0), SERIAL_OUT_WAIT }
};
REG ttox_reg[] = {
{ BRDATA (BUF, ttox_buf, 8, 8, TTX_LINES) },
{ GRDATA (DONE, dev_done, 8, TTX_LINES, INT_V_TTO1) },
{ GRDATA (ENABLE, int_enable, 8, TTX_LINES, INT_V_TTO1) },
{ GRDATA (INT, int_req, 8, TTX_LINES, INT_V_TTO1) },
{ URDATA (TIME, ttox_unit[0].wait, 10, 24, 0,
TTX_LINES, PV_LEFT) },
{ NULL }
};
MTAB ttox_mod[] = {
{ UNIT_UC+UNIT_8B, UNIT_UC, "UC", "UC", NULL },
{ UNIT_UC+UNIT_8B, 0 , "7b", "7B", NULL },
{ UNIT_UC+UNIT_8B, UNIT_8B, "8b", "8B", NULL },
{ MTAB_XTD|MTAB_VUN, 0, NULL, "DISCONNECT",
&tmxr_dscln, NULL, &ttx_desc },
{ MTAB_XTD|MTAB_VUN|MTAB_NC, 0, "LOG", "LOG",
&tmxr_set_log, &tmxr_show_log, &ttx_desc },
{ MTAB_XTD|MTAB_VUN|MTAB_NC, 0, NULL, "NOLOG",
&tmxr_set_nolog, NULL, &ttx_desc },
{ 0 }
};
DEVICE ttox_dev = {
"TTOX", ttox_unit, ttox_reg, ttox_mod,
4, 10, 31, 1, 8, 8,
NULL, NULL, &ttox_reset,
NULL, NULL, NULL,
NULL, DEV_DISABLE
};
/* Terminal input: IOT routine */
int32 ttix (int32 inst, int32 AC)
{
int32 pulse = inst & 07; /* IOT pulse */
int32 ln = TTX_GETLN (inst); /* line # */
int32 itti = (INT_TTI1 << ln); /* rx intr */
int32 itto = (INT_TTO1 << ln); /* tx intr */
switch (pulse) { /* case IR<9:11> */
case 0: /* KCF */
dev_done = dev_done & ~itti; /* clear flag */
int_req = int_req & ~itti;
break;
case 1: /* KSF */
return (dev_done & itti)? IOT_SKP + AC: AC;
case 2: /* KCC */
dev_done = dev_done & ~itti; /* clear flag */
int_req = int_req & ~itti;
return 0; /* clear AC */
case 4: /* KRS */
return (AC | ttix_buf[ln]); /* return buf */
case 5: /* KIE */
if (AC & 1) int_enable = int_enable | (itti + itto);
else int_enable = int_enable & ~(itti + itto);
int_req = INT_UPDATE; /* update intr */
break;
case 6: /* KRB */
dev_done = dev_done & ~itti; /* clear flag */
int_req = int_req & ~itti;
return ttix_buf[ln]; /* return buf */
default:
return (stop_inst << IOT_V_REASON) + AC;
} /* end switch */
return AC;
}
/* Unit service */
t_stat ttix_svc (UNIT *uptr)
{
int32 ln, c, temp;
if ((uptr->flags & UNIT_ATT) == 0) return SCPE_OK; /* attached? */
temp = sim_rtcn_calb (ttx_tps, TMR_TTX); /* calibrate */
sim_activate (uptr, temp); /* continue poll */
ln = tmxr_poll_conn (&ttx_desc); /* look for connect */
if (ln >= 0) ttx_ldsc[ln].rcve = 1; /* got one? rcv enb*/
tmxr_poll_rx (&ttx_desc); /* poll for input */
for (ln = 0; ln < TTX_LINES; ln++) { /* loop thru lines */
if (ttx_ldsc[ln].conn) { /* connected? */
if (temp = tmxr_getc_ln (&ttx_ldsc[ln])) { /* get char */
if (temp & SCPE_BREAK) c = 0; /* break? */
else if (ttox_unit[ln].flags & UNIT_UC) { /* UC? */
c = temp & 0177;
if (islower (c)) c = toupper (c);
}
else c = temp & ((ttox_unit[ln].flags & UNIT_8B)? 0377: 0177);
ttix_buf[ln] = c;
dev_done = dev_done | (INT_TTI1 << ln);
int_req = INT_UPDATE;
}
}
}
return SCPE_OK;
}
/* Reset routine */
t_stat ttix_reset (DEVICE *dptr)
{
int32 t, ln, itto;
ttx_enbdis (dptr->flags & DEV_DIS); /* sync enables */
if (ttix_unit.flags & UNIT_ATT) { /* if attached, */
if (!sim_is_active (&ttix_unit)) {
t = sim_rtcn_init (ttix_unit.wait, TMR_TTX);
sim_activate (&ttix_unit, t); /* activate */
}
}
else sim_cancel (&ttix_unit); /* else stop */
for (ln = 0; ln < TTX_LINES; ln++) { /* for all lines */
ttix_buf[ln] = 0; /* clear buf, */
itto = (INT_TTI1 << ln); /* interrupt */
dev_done = dev_done & ~itto; /* clr done, int */
int_req = int_req & ~itto;
int_enable = int_enable | itto; /* set enable */
}
return SCPE_OK;
}
/* Terminal output: IOT routine */
int32 ttox (int32 inst, int32 AC)
{
int32 pulse = inst & 07; /* pulse */
int32 ln = TTX_GETLN (inst); /* line # */
int32 itti = (INT_TTI1 << ln); /* rx intr */
int32 itto = (INT_TTO1 << ln); /* tx intr */
switch (pulse) { /* case IR<9:11> */
case 0: /* TLF */
dev_done = dev_done | itto; /* set flag */
int_req = INT_UPDATE; /* update intr */
break;
case 1: /* TSF */
return (dev_done & itto)? IOT_SKP + AC: AC;
case 2: /* TCF */
dev_done = dev_done & ~itto; /* clear flag */
int_req = int_req & ~itto; /* clear intr */
break;
case 5: /* SPI */
return (int_req & (itti | itto))? IOT_SKP + AC: AC;
case 6: /* TLS */
dev_done = dev_done & ~itto; /* clear flag */
int_req = int_req & ~itto; /* clear int req */
case 4: /* TPC */
sim_activate (&ttox_unit[ln], ttox_unit[ln].wait); /* activate */
ttox_buf[ln] = AC & 0377; /* load buffer */
break;
default:
return (stop_inst << IOT_V_REASON) + AC;
} /* end switch */
return AC;
}
/* Unit service */
t_stat ttox_svc (UNIT *uptr)
{
int32 c, ln = uptr - ttox_unit; /* line # */
if (ttx_ldsc[ln].conn) { /* connected? */
if (ttx_ldsc[ln].xmte) { /* tx enabled? */
TMLN *lp = &ttx_ldsc[ln]; /* get line */
if (ttox_unit[ln].flags & UNIT_UC) { /* UC mode? */
c = ttox_buf[ln] & 0177; /* get char */
if (islower (c)) c = toupper (c);
}
else c = ttox_buf[ln] & ((ttox_unit[ln].flags & UNIT_8B)? 0377: 0177);
tmxr_putc_ln (lp, c); /* output char */
tmxr_poll_tx (&ttx_desc); /* poll xmt */
}
else {
tmxr_poll_tx (&ttx_desc); /* poll xmt */
sim_activate (uptr, ttox_unit[ln].wait); /* wait */
return SCPE_OK;
}
}
dev_done = dev_done | (INT_TTO1 << ln); /* set done */
int_req = INT_UPDATE; /* update intr */
return SCPE_OK;
}
/* Reset routine */
t_stat ttox_reset (DEVICE *dptr)
{
int32 ln, itto;
ttx_enbdis (dptr->flags & DEV_DIS); /* sync enables */
for (ln = 0; ln < TTX_LINES; ln++) { /* for all lines */
ttox_buf[ln] = 0; /* clear buf */
itto = (INT_TTO1 << ln); /* interrupt */
dev_done = dev_done & ~itto; /* clr done, int */
int_req = int_req & ~itto;
int_enable = int_enable | itto; /* set enable */
sim_cancel (&ttox_unit[ln]); /* deactivate */
}
return SCPE_OK;
}
/* Attach master unit */
t_stat ttx_attach (UNIT *uptr, char *cptr)
{
int32 t;
t_stat r;
r = tmxr_attach (&ttx_desc, uptr, cptr); /* attach */
if (r != SCPE_OK) return r; /* error */
t = sim_rtcn_init (ttix_unit.wait, TMR_TTX); /* init calib */
sim_activate (uptr, t); /* start poll */
return SCPE_OK;
}
/* Detach master unit */
t_stat ttx_detach (UNIT *uptr)
{
int32 i;
t_stat r;
r = tmxr_detach (&ttx_desc, uptr); /* detach */
for (i = 0; i < TTX_LINES; i++) { /* all lines, */
ttx_ldsc[i].rcve = 0; /* disable rcv */
sim_cancel (&ttox_unit[i]); /* stop poll */
}
return r;
}
/* Show summary processor */
t_stat ttx_summ (FILE *st, UNIT *uptr, int32 val, void *desc)
{
int32 i, t;
for (i = t = 0; i < TTX_LINES; i++) t = t + (ttx_ldsc[i].conn != 0);
if (t == 1) fprintf (st, "1 connection");
else fprintf (st, "%d connections", t);
return SCPE_OK;
}
/* SHOW CONN/STAT processor */
t_stat ttx_show (FILE *st, UNIT *uptr, int32 val, void *desc)
{
int32 i, t;
for (i = t = 0; i < TTX_LINES; i++) t = t + (ttx_ldsc[i].conn != 0);
if (t) {
for (i = 0; i < TTX_LINES; i++) {
if (ttx_ldsc[i].conn) {
if (val) tmxr_fconns (st, &ttx_ldsc[i], i);
else tmxr_fstats (st, &ttx_ldsc[i], i);
}
}
}
else fprintf (st, "all disconnected\n");
return SCPE_OK;
}
/* Enable/disable device */
void ttx_enbdis (int32 dis)
{
if (dis) {
ttix_dev.flags = ttox_dev.flags | DEV_DIS;
ttox_dev.flags = ttox_dev.flags | DEV_DIS;
}
else {
ttix_dev.flags = ttix_dev.flags & ~DEV_DIS;
ttox_dev.flags = ttox_dev.flags & ~DEV_DIS;
}
return;
}