| /* pdp18b_ttx.c: PDP-9/15 additional terminals simulator | |
| Copyright (c) 1993-2015, 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 LT15/LT19 terminal input/output | |
| 13-Sep-15 RMS Added APIVEC register | |
| 11-Oct-13 RMS Poll TTIX immediately to pick up initial connect | |
| 18-Apr-12 RMS Revised to use clock coscheduling | |
| 19-Nov-08 RMS Revised for common TMXR show routines | |
| 18-Jun-07 RMS Added UNIT_IDLE flag | |
| 30-Sep-06 RMS Fixed handling of non-printable characters in KSR mode | |
| 22-Nov-05 RMS Revised for new terminal processing routines | |
| 29-Jun-05 RMS Added SET TTOXn DISCONNECT | |
| 21-Jun-05 RMS Fixed bug in SHOW CONN/STATS | |
| 14-Jan-04 RMS Cloned from pdp8_ttx.c | |
| This module implements 16 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 "pdp18b_defs.h" | |
| #include "sim_sock.h" | |
| #include "sim_tmxr.h" | |
| #include <ctype.h> | |
| #if defined (PDP15) | |
| #define TTX_MAXL 16 /* max number of lines */ | |
| #elif defined (PDP9) | |
| #define TTX_MAXL 4 | |
| #else | |
| #define TTX_MAXL 1 | |
| #endif | |
| uint32 ttix_done = 0; /* input flags */ | |
| uint32 ttox_done = 0; /* output flags */ | |
| uint8 ttix_buf[TTX_MAXL] = { 0 }; /* input buffers */ | |
| uint8 ttox_buf[TTX_MAXL] = { 0 }; /* output buffers */ | |
| TMLN ttx_ldsc[TTX_MAXL] = { {0} }; /* line descriptors */ | |
| TMXR ttx_desc = { 1, 0, 0, ttx_ldsc }; /* mux descriptor */ | |
| #define ttx_lines ttx_desc.lines /* current number of lines */ | |
| extern int32 int_hwre[API_HLVL+1]; | |
| extern int32 api_vec[API_HLVL][32]; | |
| extern int32 tmxr_poll; | |
| extern int32 stop_inst; | |
| DEVICE ttix_dev, ttox_dev; | |
| int32 ttix (int32 dev, int32 pulse, int32 dat); | |
| int32 ttox (int32 dev, int32 pulse, int32 dat); | |
| t_stat ttix_svc (UNIT *uptr); | |
| t_bool ttix_test_done (int32 ln); | |
| void ttix_set_done (int32 ln); | |
| void ttix_clr_done (int32 ln); | |
| t_stat ttox_svc (UNIT *uptr); | |
| t_bool ttox_test_done (int32 ln); | |
| void ttox_set_done (int32 ln); | |
| void ttox_clr_done (int32 ln); | |
| int32 ttx_getln (int32 dev, int32 pulse); | |
| t_stat ttx_attach (UNIT *uptr, char *cptr); | |
| t_stat ttx_detach (UNIT *uptr); | |
| t_stat ttx_reset (DEVICE *dptr); | |
| void ttx_reset_ln (int32 i); | |
| t_stat ttx_vlines (UNIT *uptr, int32 val, char *cptr, void *desc); | |
| /* 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_TTO1, 8, NULL, | |
| { &ttox, &ttix, &ttox, &ttix, &ttox, &ttix, &ttox, &ttix } | |
| }; | |
| UNIT ttix_unit = { UDATA (&ttix_svc, UNIT_IDLE|UNIT_ATTABLE, 0), KBD_POLL_WAIT }; | |
| REG ttix_reg[] = { | |
| { BRDATAD (BUF, ttix_buf, 8, 8, TTX_MAXL, "last character received, lines 0 to 3/15") }, | |
| { ORDATAD (DONE, ttix_done, TTX_MAXL, "input ready flags, line 0 on right") }, | |
| { FLDATAD (INT, int_hwre[API_TTI1], INT_V_TTI1, "interrupt pending flag") }, | |
| { DRDATAD (TIME, ttix_unit.wait, 24, "keyboard polling interval"), REG_NZ + PV_LEFT }, | |
| { ORDATA (DEVNUM, ttix_dib.dev, 6), REG_HRO }, | |
| #if defined (PDP15) | |
| { ORDATA (APIVEC, api_vec[API_TTI1][INT_V_TTI1], 6), REG_HRO }, | |
| #endif | |
| { NULL } | |
| }; | |
| MTAB ttix_mod[] = { | |
| { MTAB_XTD | MTAB_VDV, 0, "LINES", "LINES", | |
| &ttx_vlines, &tmxr_show_lines, (void *) &ttx_desc }, | |
| { UNIT_ATT, UNIT_ATT, "summary", NULL, | |
| NULL, &tmxr_show_summ, (void *) &ttx_desc }, | |
| { MTAB_XTD | MTAB_VDV, 1, NULL, "DISCONNECT", | |
| &tmxr_dscln, NULL, (void *) &ttx_desc }, | |
| { MTAB_XTD | MTAB_VDV | MTAB_NMO, 1, "CONNECTIONS", NULL, | |
| NULL, &tmxr_show_cstat, (void *) &ttx_desc }, | |
| { MTAB_XTD | MTAB_VDV | MTAB_NMO, 0, "STATISTICS", NULL, | |
| NULL, &tmxr_show_cstat, (void *) &ttx_desc }, | |
| { MTAB_XTD|MTAB_VDV, 0, "DEVNO", "DEVNO", | |
| &set_devno, &show_devno, NULL }, | |
| { 0 } | |
| }; | |
| DEVICE tti1_dev = { | |
| "TTIX", &ttix_unit, ttix_reg, ttix_mod, | |
| 1, 10, 31, 1, 8, 8, | |
| &tmxr_ex, &tmxr_dep, &ttx_reset, | |
| NULL, &ttx_attach, &ttx_detach, | |
| &ttix_dib, DEV_MUX | 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, TT_MODE_KSR, 0), SERIAL_OUT_WAIT }, | |
| { UDATA (&ttox_svc, TT_MODE_KSR+UNIT_DIS, 0), SERIAL_OUT_WAIT }, | |
| { UDATA (&ttox_svc, TT_MODE_KSR+UNIT_DIS, 0), SERIAL_OUT_WAIT }, | |
| { UDATA (&ttox_svc, TT_MODE_KSR+UNIT_DIS, 0), SERIAL_OUT_WAIT }, | |
| { UDATA (&ttox_svc, TT_MODE_KSR+UNIT_DIS, 0), SERIAL_OUT_WAIT }, | |
| { UDATA (&ttox_svc, TT_MODE_KSR+UNIT_DIS, 0), SERIAL_OUT_WAIT }, | |
| { UDATA (&ttox_svc, TT_MODE_KSR+UNIT_DIS, 0), SERIAL_OUT_WAIT }, | |
| { UDATA (&ttox_svc, TT_MODE_KSR+UNIT_DIS, 0), SERIAL_OUT_WAIT }, | |
| { UDATA (&ttox_svc, TT_MODE_KSR+UNIT_DIS, 0), SERIAL_OUT_WAIT }, | |
| { UDATA (&ttox_svc, TT_MODE_KSR+UNIT_DIS, 0), SERIAL_OUT_WAIT }, | |
| { UDATA (&ttox_svc, TT_MODE_KSR+UNIT_DIS, 0), SERIAL_OUT_WAIT }, | |
| { UDATA (&ttox_svc, TT_MODE_KSR+UNIT_DIS, 0), SERIAL_OUT_WAIT }, | |
| { UDATA (&ttox_svc, TT_MODE_KSR+UNIT_DIS, 0), SERIAL_OUT_WAIT }, | |
| { UDATA (&ttox_svc, TT_MODE_KSR+UNIT_DIS, 0), SERIAL_OUT_WAIT }, | |
| { UDATA (&ttox_svc, TT_MODE_KSR+UNIT_DIS, 0), SERIAL_OUT_WAIT }, | |
| { UDATA (&ttox_svc, TT_MODE_KSR+UNIT_DIS, 0), SERIAL_OUT_WAIT } | |
| }; | |
| REG ttox_reg[] = { | |
| { BRDATAD (BUF, ttox_buf, 8, 8, TTX_MAXL, "last character transmitted, lines 0 to 3/15") }, | |
| { ORDATAD (DONE, ttox_done, TTX_MAXL, "output ready flags, line 0 on right") }, | |
| { FLDATAD (INT, int_hwre[API_TTO1], INT_V_TTO1, "interrupt pending flag") }, | |
| { URDATAD (TIME, ttox_unit[0].wait, 10, 24, 0, | |
| TTX_MAXL, PV_LEFT, "time from initiation to interrupt, lines 0 to 3/15") }, | |
| #if defined (PDP15) | |
| { ORDATA (APIVEC, api_vec[API_TTO1][INT_V_TTO1], 6), REG_HRO }, | |
| #endif | |
| { NULL } | |
| }; | |
| MTAB ttox_mod[] = { | |
| { TT_MODE, TT_MODE_KSR, "KSR", "KSR", NULL }, | |
| { TT_MODE, TT_MODE_7B, "7b", "7B", NULL }, | |
| { TT_MODE, TT_MODE_8B, "8b", "8B", NULL }, | |
| { TT_MODE, TT_MODE_7P, "7p", "7P", 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 tto1_dev = { | |
| "TTOX", ttox_unit, ttox_reg, ttox_mod, | |
| TTX_MAXL, 10, 31, 1, 8, 8, | |
| NULL, NULL, &ttx_reset, | |
| NULL, NULL, NULL, | |
| NULL, DEV_DISABLE | |
| }; | |
| /* Terminal input: IOT routine */ | |
| int32 ttix (int32 dev, int32 pulse, int32 dat) | |
| { | |
| int32 ln = ttx_getln (dev, pulse); /* line # */ | |
| if (ln > ttx_lines) | |
| return dat; | |
| if (pulse & 001) { /* KSF1 */ | |
| if (ttix_test_done (ln)) | |
| dat = dat | IOT_SKP; | |
| } | |
| if (pulse & 002) { /* KRB1 */ | |
| ttix_clr_done (ln); /* clear flag */ | |
| dat = dat | ttix_buf[ln]; /* return buffer */ | |
| } | |
| return dat; | |
| } | |
| /* Unit service */ | |
| t_stat ttix_svc (UNIT *uptr) | |
| { | |
| int32 ln, c, temp; | |
| if ((uptr->flags & UNIT_ATT) == 0) /* attached? */ | |
| return SCPE_OK; | |
| sim_clock_coschedule (uptr, tmxr_poll); /* continue poll */ | |
| ln = tmxr_poll_conn (&ttx_desc); /* look for connect */ | |
| if (ln >= 0) /* got one? rcv enab */ | |
| ttx_ldsc[ln].rcve = 1; | |
| tmxr_poll_rx (&ttx_desc); /* poll for input */ | |
| for (ln = 0; ln < TTX_MAXL; ln++) { /* loop thru lines */ | |
| if (ttx_ldsc[ln].conn) { /* connected? */ | |
| if ((temp = tmxr_getc_ln (&ttx_ldsc[ln]))) { /* get char */ | |
| if (temp & SCPE_BREAK) /* break? */ | |
| c = 0; | |
| else c = sim_tt_inpcvt (temp, TT_GET_MODE (ttox_unit[ln].flags) | TTUF_KSR); | |
| ttix_buf[ln] = c; | |
| ttix_set_done (ln); | |
| } | |
| } | |
| } | |
| return SCPE_OK; | |
| } | |
| /* Interrupt handling routines */ | |
| t_bool ttix_test_done (int32 ln) | |
| { | |
| if (ttix_done & (1 << ln)) | |
| return TRUE; | |
| return FALSE; | |
| } | |
| void ttix_set_done (int32 ln) | |
| { | |
| ttix_done = ttix_done | (1 << ln); | |
| SET_INT (TTI1); | |
| return; | |
| } | |
| void ttix_clr_done (int32 ln) | |
| { | |
| ttix_done = ttix_done & ~(1 << ln); | |
| if (ttix_done) { | |
| SET_INT (TTI1); | |
| } | |
| else { | |
| CLR_INT (TTI1); | |
| } | |
| return; | |
| } | |
| /* Terminal output: IOT routine */ | |
| int32 ttox (int32 dev, int32 pulse, int32 dat) | |
| { | |
| int32 ln = ttx_getln (dev, pulse); /* line # */ | |
| if (ln > ttx_lines) | |
| return dat; | |
| if (pulse & 001) { /* TSF */ | |
| if (ttox_test_done (ln)) | |
| dat = dat | IOT_SKP; | |
| } | |
| if (pulse & 002) /* clear flag */ | |
| ttox_clr_done (ln); | |
| if (pulse & 004) { /* load buffer */ | |
| sim_activate (&ttox_unit[ln], ttox_unit[ln].wait); /* activate unit */ | |
| ttox_buf[ln] = dat & 0377; /* load buffer */ | |
| } | |
| return dat; | |
| } | |
| /* 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 */ | |
| c = sim_tt_outcvt (ttox_buf[ln], TT_GET_MODE (ttox_unit[ln].flags) | TTUF_KSR); | |
| if (c >= 0) /* output char */ | |
| tmxr_putc_ln (lp, c); | |
| 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; | |
| } | |
| } | |
| ttox_set_done (ln); /* set done */ | |
| return SCPE_OK; | |
| } | |
| /* Interrupt handling routines */ | |
| t_bool ttox_test_done (int32 ln) | |
| { | |
| if (ttox_done & (1 << ln)) | |
| return TRUE; | |
| return FALSE; | |
| } | |
| void ttox_set_done (int32 ln) | |
| { | |
| ttox_done = ttox_done | (1 << ln); | |
| SET_INT (TTO1); | |
| return; | |
| } | |
| void ttox_clr_done (int32 ln) | |
| { | |
| ttox_done = ttox_done & ~(1 << ln); | |
| if (ttox_done) { | |
| SET_INT (TTO1); | |
| } | |
| else { | |
| CLR_INT (TTO1); | |
| } | |
| return; | |
| } | |
| /* Compute relative line number | |
| This algorithm does not assign contiguous line numbers of ascending | |
| LT19's. Rather, line numbers follow a simple progression based on | |
| the relative IOT number and the subdevice select */ | |
| int32 ttx_getln (int32 dev, int32 pulse) | |
| { | |
| int32 rdno = ((dev - ttix_dib.dev) >> 1) & 3; | |
| #if defined (PDP15) /* PDP-15? */ | |
| int32 sub = (pulse >> 4) & 3; | |
| return (rdno * 4) + sub; /* use dev, subdev */ | |
| #else /* others */ | |
| return rdno; /* use dev only */ | |
| #endif | |
| } | |
| /* Reset routine */ | |
| t_stat ttx_reset (DEVICE *dptr) | |
| { | |
| int32 ln; | |
| if (dptr->flags & DEV_DIS) { /* sync enables */ | |
| ttix_dev.flags = ttix_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; | |
| } | |
| if (ttix_unit.flags & UNIT_ATT) /* if attached, */ | |
| sim_activate (&ttix_unit, tmxr_poll); /* activate */ | |
| else sim_cancel (&ttix_unit); /* else stop */ | |
| for (ln = 0; ln < TTX_MAXL; ln++) /* for all lines */ | |
| ttx_reset_ln (ln); | |
| return SCPE_OK; | |
| } | |
| /* Reset line n */ | |
| void ttx_reset_ln (int32 ln) | |
| { | |
| ttix_buf[ln] = 0; /* clear buf, */ | |
| ttox_buf[ln] = 0; | |
| ttix_clr_done (ln); /* clear done */ | |
| ttox_clr_done (ln); | |
| sim_cancel (&ttox_unit[ln]); /* stop poll */ | |
| return; | |
| } | |
| /* Attach master unit */ | |
| t_stat ttx_attach (UNIT *uptr, char *cptr) | |
| { | |
| t_stat r; | |
| r = tmxr_attach (&ttx_desc, uptr, cptr); /* attach */ | |
| if (r != SCPE_OK) /* error */ | |
| return r; | |
| sim_activate (uptr, 0); /* start poll at once */ | |
| return SCPE_OK; | |
| } | |
| /* Detach master unit */ | |
| t_stat ttx_detach (UNIT *uptr) | |
| { | |
| int32 i; | |
| t_stat r; | |
| r = tmxr_detach (&ttx_desc, uptr); /* detach */ | |
| sim_cancel (uptr); /* stop poll */ | |
| for (i = 0; i < TTX_MAXL; i++) /* disable rcv */ | |
| ttx_ldsc[i].rcve = 0; | |
| return r; | |
| } | |
| /* Change number of lines */ | |
| t_stat ttx_vlines (UNIT *uptr, int32 val, char *cptr, void *desc) | |
| { | |
| int32 newln, i, t; | |
| t_stat r; | |
| if (cptr == NULL) | |
| return SCPE_ARG; | |
| newln = get_uint (cptr, 10, TTX_MAXL, &r); | |
| if ((r != SCPE_OK) || (newln == ttx_lines)) | |
| return r; | |
| if (newln == 0) | |
| return SCPE_ARG; | |
| if (newln < ttx_lines) { | |
| for (i = newln, t = 0; i < ttx_lines; i++) | |
| t = t | ttx_ldsc[i].conn; | |
| if (t && !get_yn ("This will disconnect users; proceed [N]?", FALSE)) | |
| return SCPE_OK; | |
| for (i = newln; i < ttx_lines; i++) { | |
| if (ttx_ldsc[i].conn) { | |
| tmxr_linemsg (&ttx_ldsc[i], "\r\nOperator disconnected line\r\n"); | |
| tmxr_reset_ln (&ttx_ldsc[i]); /* reset line */ | |
| } | |
| ttox_unit[i].flags = ttox_unit[i].flags | UNIT_DIS; | |
| ttx_reset_ln (i); | |
| } | |
| } | |
| else { | |
| for (i = ttx_lines; i < newln; i++) { | |
| ttox_unit[i].flags = ttox_unit[i].flags & ~UNIT_DIS; | |
| ttx_reset_ln (i); | |
| } | |
| } | |
| ttx_lines = newln; | |
| return SCPE_OK; | |
| } | |