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1 | /* id_pas.c: Interdata programmable async line adapter simulator\r |
2 | \r | |
3 | Copyright (c) 2001-2007, Robert M Supnik\r | |
4 | \r | |
5 | Permission is hereby granted, free of charge, to any person obtaining a\r | |
6 | copy of this software and associated documentation files (the "Software"),\r | |
7 | to deal in the Software without restriction, including without limitation\r | |
8 | the rights to use, copy, modify, merge, publish, distribute, sublicense,\r | |
9 | and/or sell copies of the Software, and to permit persons to whom the\r | |
10 | Software is furnished to do so, subject to the following conditions:\r | |
11 | \r | |
12 | The above copyright notice and this permission notice shall be included in\r | |
13 | all copies or substantial portions of the Software.\r | |
14 | \r | |
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r | |
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\r | |
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL\r | |
18 | ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r | |
19 | IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r | |
20 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r | |
21 | \r | |
22 | Except as contained in this notice, the name of Robert M Supnik shall not be\r | |
23 | used in advertising or otherwise to promote the sale, use or other dealings\r | |
24 | in this Software without prior written authorization from Robert M Supnik.\r | |
25 | \r | |
26 | pas Programmable asynchronous line adapter(s)\r | |
27 | \r | |
28 | 18-Jun-07 RMS Added UNIT_IDLE flag\r | |
29 | 18-Oct-06 RMS Synced PASLA to clock\r | |
30 | 22-Nov-05 RMS Revised for new terminal processing routines\r | |
31 | 29-Jun-05 RMS Added SET PASLn DISCONNECT\r | |
32 | 21-Jun-05 RMS Fixed bug in SHOW CONN/STATS\r | |
33 | 05-Jan-04 RMS Revised for tmxr library changes\r | |
34 | 09-May-03 RMS Added network device flag\r | |
35 | \r | |
36 | This module implements up to 32 individual serial interfaces, representing\r | |
37 | either individual PASLA modules or combinations of the 2-line and 8-line\r | |
38 | multiplexors, which are functionally very similar. These interfaces are mapped\r | |
39 | to Telnet based connections as the lines of a terminal multiplexor. The\r | |
40 | connection polling mechanism and the character input polling for all lines\r | |
41 | are done through a single polling job.\r | |
42 | */\r | |
43 | \r | |
44 | #include "id_defs.h"\r | |
45 | #include "sim_sock.h"\r | |
46 | #include "sim_tmxr.h"\r | |
47 | #include <ctype.h>\r | |
48 | \r | |
49 | #define PAS_LINES 32\r | |
50 | \r | |
51 | #define UNIT_V_MDM (TTUF_V_UF + 0) /* modem control */\r | |
52 | #define UNIT_MDM (1 << UNIT_V_MDM)\r | |
53 | \r | |
54 | #define PASL_WAIT 500\r | |
55 | \r | |
56 | /* Status byte */\r | |
57 | \r | |
58 | #define STA_OVR 0x80 /* overrun RO */\r | |
59 | #define STA_PF 0x40 /* parity err RONI */\r | |
60 | #define STA_NCL2S 0x40 /* not clr to snd XO */\r | |
61 | #define STA_FR 0x20 /* framing err RO */\r | |
62 | #define STA_RCR 0x10 /* rv chan rcv NI */\r | |
63 | #define STA_CROF 0x02 /* carrier off RO */\r | |
64 | #define STA_RING 0x01 /* ring RO */\r | |
65 | #define STA_RCV (STA_OVR|STA_PF|STA_FR|STA_RCR|STA_CROF|STA_RING)\r | |
66 | #define SET_EX (STA_OVR|STA_PF|STA_FR)\r | |
67 | #define STA_XMT (STA_BSY)\r | |
68 | \r | |
69 | /* Command bytes 1,0 */\r | |
70 | \r | |
71 | #define CMD_DTR (0x20 << 8) /* DTR */\r | |
72 | #define CMD_ECHO (0x10 << 8) /* echoplex */\r | |
73 | #define CMD_RCT (0x08 << 8) /* RCT/DTB NI */\r | |
74 | #define CMD_XMTB (0x04 << 8) /* xmt break NI */\r | |
75 | #define CMD_WRT (0x02 << 8) /* write/read */\r | |
76 | #define CMD_V_CLK 6 /* baud rate */\r | |
77 | #define CMD_M_CLK 0x3\r | |
78 | #define CMD_V_DB 4 /* data bits */\r | |
79 | #define CMD_M_DB 0x3\r | |
80 | #define CMD_STOP 0x80 /* stop bit */\r | |
81 | #define CMD_V_PAR 1 /* parity */\r | |
82 | #define CMD_M_PAR 0x3\r | |
83 | #define GET_PAR(x) (((x) >> CMD_V_PAR) & CMD_M_PAR)\r | |
84 | #define PAR_NONE 0\r | |
85 | #define PAR_RAW 1\r | |
86 | #define PAR_ODD 2\r | |
87 | #define PAR_EVEN 3\r | |
88 | \r | |
89 | #define CMD_TYP 0x01 /* command type */\r | |
90 | \r | |
91 | extern uint32 int_req[INTSZ], int_enb[INTSZ];\r | |
92 | extern int32 lfc_poll;\r | |
93 | \r | |
94 | uint8 pas_sta[PAS_LINES]; /* status */\r | |
95 | uint16 pas_cmd[PAS_LINES]; /* command */\r | |
96 | uint8 pas_rbuf[PAS_LINES]; /* rcv buf */\r | |
97 | uint8 pas_xbuf[PAS_LINES]; /* xmt buf */\r | |
98 | uint8 pas_rarm[PAS_LINES]; /* rcvr int armed */\r | |
99 | uint8 pas_xarm[PAS_LINES]; /* xmt int armed */\r | |
100 | uint8 pas_rchp[PAS_LINES]; /* rcvr chr pend */\r | |
101 | uint8 pas_tplte[PAS_LINES * 2 + 1]; /* template */\r | |
102 | \r | |
103 | TMLN pas_ldsc[PAS_LINES] = { 0 }; /* line descriptors */\r | |
104 | TMXR pas_desc = { 8, 0, 0, pas_ldsc }; /* mux descriptor */\r | |
105 | #define PAS_ENAB pas_desc.lines\r | |
106 | \r | |
107 | uint32 pas (uint32 dev, uint32 op, uint32 dat);\r | |
108 | void pas_ini (t_bool dtpl);\r | |
109 | t_stat pasi_svc (UNIT *uptr);\r | |
110 | t_stat paso_svc (UNIT *uptr);\r | |
111 | t_stat pas_reset (DEVICE *dptr);\r | |
112 | t_stat pas_attach (UNIT *uptr, char *cptr);\r | |
113 | t_stat pas_detach (UNIT *uptr);\r | |
114 | t_stat pas_summ (FILE *st, UNIT *uptr, int32 val, void *desc);\r | |
115 | t_stat pas_show (FILE *st, UNIT *uptr, int32 val, void *desc);\r | |
116 | int32 pas_par (int32 cmd, int32 c);\r | |
117 | t_stat pas_vlines (UNIT *uptr, int32 val, char *cptr, void *desc);\r | |
118 | void pas_reset_ln (int32 i);\r | |
119 | \r | |
120 | /* PAS data structures\r | |
121 | \r | |
122 | pas_dev PAS device descriptor\r | |
123 | pas_unit PAS unit descriptor\r | |
124 | pas_reg PAS register list\r | |
125 | pas_mod PAS modifiers list\r | |
126 | */\r | |
127 | \r | |
128 | DIB pas_dib = { d_PAS, -1, v_PAS, pas_tplte, &pas, &pas_ini };\r | |
129 | \r | |
130 | UNIT pas_unit = { UDATA (&pasi_svc, UNIT_ATTABLE|UNIT_IDLE, 0), 0 };\r | |
131 | \r | |
132 | REG pas_nlreg = { DRDATA (NLINES, PAS_ENAB, 6), PV_LEFT };\r | |
133 | \r | |
134 | REG pas_reg[] = {\r | |
135 | { BRDATA (STA, pas_sta, 16, 8, PAS_LINES) },\r | |
136 | { BRDATA (CMD, pas_cmd, 16, 16, PAS_LINES) },\r | |
137 | { BRDATA (RBUF, pas_rbuf, 16, 8, PAS_LINES) },\r | |
138 | { BRDATA (XBUF, pas_xbuf, 16, 8, PAS_LINES) },\r | |
139 | { BRDATA (IREQ, &int_req[l_PAS], 16, 32, PAS_LINES / 16) },\r | |
140 | { BRDATA (IENB, &int_enb[l_PAS], 16, 32, PAS_LINES / 16) },\r | |
141 | { BRDATA (RARM, pas_rarm, 16, 1, PAS_LINES) },\r | |
142 | { BRDATA (XARM, pas_xarm, 16, 1, PAS_LINES) },\r | |
143 | { BRDATA (RCHP, pas_rchp, 16, 1, PAS_LINES) },\r | |
144 | { HRDATA (DEVNO, pas_dib.dno, 8), REG_HRO },\r | |
145 | { NULL }\r | |
146 | };\r | |
147 | \r | |
148 | MTAB pas_mod[] = {\r | |
149 | { MTAB_XTD | MTAB_VDV | MTAB_VAL, 0, "lines", "LINES",\r | |
150 | &pas_vlines, NULL, &pas_nlreg },\r | |
151 | { MTAB_XTD | MTAB_VDV, 1, NULL, "DISCONNECT",\r | |
152 | &tmxr_dscln, NULL, &pas_desc },\r | |
153 | { UNIT_ATT, UNIT_ATT, "connections", NULL, NULL, &pas_summ },\r | |
154 | { MTAB_XTD | MTAB_VDV | MTAB_NMO, 1, "CONNECTIONS", NULL,\r | |
155 | NULL, &pas_show, NULL },\r | |
156 | { MTAB_XTD | MTAB_VDV | MTAB_NMO, 0, "STATISTICS", NULL,\r | |
157 | NULL, &pas_show, NULL },\r | |
158 | { MTAB_XTD|MTAB_VDV, 0, "DEVNO", "DEVNO",\r | |
159 | &set_dev, &show_dev, NULL },\r | |
160 | { 0 }\r | |
161 | };\r | |
162 | \r | |
163 | DEVICE pas_dev = {\r | |
164 | "PAS", &pas_unit, pas_reg, pas_mod,\r | |
165 | 1, 10, 31, 1, 16, 8,\r | |
166 | &tmxr_ex, &tmxr_dep, &pas_reset,\r | |
167 | NULL, &pas_attach, &pas_detach,\r | |
168 | &pas_dib, DEV_NET | DEV_DISABLE\r | |
169 | };\r | |
170 | \r | |
171 | /* PASL data structures\r | |
172 | \r | |
173 | pasl_dev PASL device descriptor\r | |
174 | pasl_unit PASL unit descriptor\r | |
175 | pasl_reg PASL register list\r | |
176 | pasl_mod PASL modifiers list\r | |
177 | */\r | |
178 | \r | |
179 | UNIT pasl_unit[] = {\r | |
180 | { UDATA (&paso_svc, 0, 0), PASL_WAIT }, /* all but 8 dis */\r | |
181 | { UDATA (&paso_svc, 0, 0), PASL_WAIT },\r | |
182 | { UDATA (&paso_svc, 0, 0), PASL_WAIT },\r | |
183 | { UDATA (&paso_svc, 0, 0), PASL_WAIT },\r | |
184 | { UDATA (&paso_svc, 0, 0), PASL_WAIT },\r | |
185 | { UDATA (&paso_svc, 0, 0), PASL_WAIT },\r | |
186 | { UDATA (&paso_svc, 0, 0), PASL_WAIT },\r | |
187 | { UDATA (&paso_svc, 0, 0), PASL_WAIT },\r | |
188 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
189 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
190 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
191 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
192 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
193 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
194 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
195 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
196 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
197 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
198 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
199 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
200 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
201 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
202 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
203 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
204 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
205 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
206 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
207 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
208 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
209 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
210 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT },\r | |
211 | { UDATA (&paso_svc, UNIT_DIS, 0), PASL_WAIT }\r | |
212 | };\r | |
213 | \r | |
214 | MTAB pasl_mod[] = {\r | |
215 | { TT_MODE, TT_MODE_UC, "UC", "UC", NULL },\r | |
216 | { TT_MODE, TT_MODE_7B, "7b", "7B", NULL },\r | |
217 | { TT_MODE, TT_MODE_8B, "8b", "8B", NULL },\r | |
218 | { TT_MODE, TT_MODE_7P, "7p", "7P", NULL },\r | |
219 | { UNIT_MDM, 0, "no dataset", "NODATASET", NULL },\r | |
220 | { UNIT_MDM, UNIT_MDM, "dataset", "DATASET", NULL },\r | |
221 | { MTAB_XTD|MTAB_VDV, 0, NULL, "DISCONNECT",\r | |
222 | &tmxr_dscln, NULL, &pas_desc },\r | |
223 | { MTAB_XTD|MTAB_VUN|MTAB_NC, 0, "LOG", "LOG",\r | |
224 | &tmxr_set_log, &tmxr_show_log, &pas_desc },\r | |
225 | { MTAB_XTD|MTAB_VUN|MTAB_NC, 0, NULL, "NOLOG",\r | |
226 | &tmxr_set_nolog, NULL, &pas_desc },\r | |
227 | { 0 }\r | |
228 | };\r | |
229 | \r | |
230 | REG pasl_reg[] = {\r | |
231 | { URDATA (TIME, pasl_unit[0].wait, 16, 24, 0,\r | |
232 | PAS_LINES, REG_NZ + PV_LEFT) },\r | |
233 | { NULL }\r | |
234 | };\r | |
235 | \r | |
236 | DEVICE pasl_dev = {\r | |
237 | "PASL", pasl_unit, pasl_reg, pasl_mod,\r | |
238 | PAS_LINES, 10, 31, 1, 16, 8,\r | |
239 | NULL, NULL, &pas_reset,\r | |
240 | NULL, NULL, NULL,\r | |
241 | NULL, 0\r | |
242 | };\r | |
243 | \r | |
244 | /* PAS: IO routine */\r | |
245 | \r | |
246 | uint32 pas (uint32 dev, uint32 op, uint32 dat)\r | |
247 | {\r | |
248 | int32 ln = (dev - pas_dib.dno) >> 1;\r | |
249 | int32 xmt = (dev - pas_dib.dno) & 1;\r | |
250 | int32 t, old_cmd;\r | |
251 | \r | |
252 | switch (op) { /* case IO op */\r | |
253 | \r | |
254 | case IO_ADR: /* select */\r | |
255 | return BY; /* byte only */\r | |
256 | \r | |
257 | case IO_RD: /* read */\r | |
258 | pas_rchp[ln] = 0; /* clr chr pend */\r | |
259 | pas_sta[ln] = pas_sta[ln] & ~STA_OVR; /* clr overrun */\r | |
260 | return pas_rbuf[ln]; /* return buf */\r | |
261 | \r | |
262 | case IO_WD: /* write */\r | |
263 | pas_xbuf[ln] = dat & 0xFF; /* store char */\r | |
264 | pas_sta[ln] = pas_sta[ln] | STA_BSY; /* set busy */\r | |
265 | sim_activate (&pasl_unit[ln], pasl_unit[ln].wait);\r | |
266 | break;\r | |
267 | \r | |
268 | case IO_SS: /* status */\r | |
269 | if (xmt) { /* xmt side? */\r | |
270 | if (pas_ldsc[ln].conn == 0) /* not conn? */\r | |
271 | t = STA_NCL2S | STA_BSY; /* busy, not clr */\r | |
272 | else t = pas_sta[ln] & STA_XMT; /* else just busy */\r | |
273 | }\r | |
274 | else {\r | |
275 | t = pas_sta[ln] & STA_RCV; /* get static */\r | |
276 | if (!pas_rchp[ln]) t = t | STA_BSY; /* no char? busy */\r | |
277 | if (pas_ldsc[ln].conn == 0) /* not connected? */\r | |
278 | t = t | STA_BSY | STA_EX; /* = !dsr */\r | |
279 | if (t & SET_EX) t = t | STA_EX; /* test for ex */\r | |
280 | }\r | |
281 | return t;\r | |
282 | \r | |
283 | case IO_OC: /* command */\r | |
284 | old_cmd = pas_cmd[ln]; /* old cmd */\r | |
285 | if (dat & CMD_TYP) { /* type 1? */\r | |
286 | pas_cmd[ln] = (pas_cmd[ln] & 0xFF) | (dat << 8);\r | |
287 | if (pas_cmd[ln] & CMD_WRT) /* write? */\r | |
288 | pas_xarm[ln] = int_chg (v_PASX + ln + ln, dat, pas_xarm[ln]);\r | |
289 | else pas_rarm[ln] = int_chg (v_PAS + ln + ln, dat, pas_rarm[ln]);\r | |
290 | }\r | |
291 | else pas_cmd[ln] = (pas_cmd[ln] & ~0xFF) | dat;\r | |
292 | if (pasl_unit[ln].flags & UNIT_MDM) { /* modem ctrl? */\r | |
293 | if ((pas_cmd[ln] & CMD_DTR) && (pas_sta[ln] & STA_RING))\r | |
294 | pas_sta[ln] = pas_sta[ln] & ~(STA_CROF | STA_RING);\r | |
295 | if (old_cmd & ~pas_cmd[ln] & CMD_DTR) {\r | |
296 | tmxr_linemsg (&pas_ldsc[ln], "\r\nLine hangup\r\n");\r | |
297 | tmxr_reset_ln (&pas_ldsc[ln]); /* reset line */\r | |
298 | pas_sta[ln] = pas_sta[ln] | STA_CROF; /* no carrier */\r | |
299 | if (pas_rarm[ln]) SET_INT (v_PAS + ln + ln);\r | |
300 | }\r | |
301 | }\r | |
302 | break;\r | |
303 | }\r | |
304 | \r | |
305 | return 0;\r | |
306 | }\r | |
307 | \r | |
308 | /* Unit service - receive side\r | |
309 | \r | |
310 | Poll all active lines for input\r | |
311 | Poll for new connections\r | |
312 | */\r | |
313 | \r | |
314 | t_stat pasi_svc (UNIT *uptr)\r | |
315 | {\r | |
316 | int32 ln, c, out;\r | |
317 | \r | |
318 | if ((uptr->flags & UNIT_ATT) == 0) return SCPE_OK; /* attached? */\r | |
319 | sim_activate (uptr, lfc_poll); /* continue poll */\r | |
320 | ln = tmxr_poll_conn (&pas_desc); /* look for connect */\r | |
321 | if (ln >= 0) { /* got one? */\r | |
322 | if ((pasl_unit[ln].flags & UNIT_MDM) && /* modem control */\r | |
323 | ((pas_cmd[ln] & CMD_DTR) == 0)) /* & !dtr? */\r | |
324 | pas_sta[ln] = pas_sta[ln] | STA_RING | STA_CROF; /* set ring, no cd */\r | |
325 | else pas_sta[ln] = pas_sta[ln] & ~STA_CROF; /* just answer */\r | |
326 | if (pas_rarm[ln]) SET_INT (v_PAS + ln + ln); /* interrupt */\r | |
327 | pas_ldsc[ln].rcve = 1; /* rcv enabled */ \r | |
328 | }\r | |
329 | tmxr_poll_rx (&pas_desc); /* poll for input */\r | |
330 | for (ln = 0; ln < PAS_ENAB; ln++) { /* loop thru lines */\r | |
331 | if (pas_ldsc[ln].conn) { /* connected? */\r | |
332 | if (c = tmxr_getc_ln (&pas_ldsc[ln])) { /* any char? */\r | |
333 | pas_sta[ln] = pas_sta[ln] & ~(STA_FR | STA_PF);\r | |
334 | if (pas_rchp[ln]) pas_sta[ln] = pas_sta[ln] | STA_OVR;\r | |
335 | if (pas_rarm[ln]) SET_INT (v_PAS + ln + ln);\r | |
336 | if (c & SCPE_BREAK) { /* break? */\r | |
337 | pas_sta[ln] = pas_sta[ln] | STA_FR; /* framing error */\r | |
338 | pas_rbuf[ln] = 0; /* no character */\r | |
339 | }\r | |
340 | else { /* normal */\r | |
341 | out = c & 0x7F; /* echo is 7b */\r | |
342 | c = sim_tt_inpcvt (c, TT_GET_MODE (pasl_unit[ln].flags));\r | |
343 | if (TT_GET_MODE (pasl_unit[ln].flags) != TT_MODE_8B)\r | |
344 | c = pas_par (pas_cmd[ln], c); /* apply parity */\r | |
345 | pas_rbuf[ln] = c; /* save char */\r | |
346 | pas_rchp[ln] = 1; /* char pending */\r | |
347 | if ((pas_cmd[ln] & CMD_ECHO) && pas_ldsc[ln].xmte) {\r | |
348 | TMLN *lp = &pas_ldsc[ln]; /* get line */\r | |
349 | out = sim_tt_outcvt (out, TT_GET_MODE (pasl_unit[ln].flags));\r | |
350 | if (out >= 0) tmxr_putc_ln (lp, out); /* output char */\r | |
351 | tmxr_poll_tx (&pas_desc); /* poll xmt */\r | |
352 | }\r | |
353 | } /* end else normal */\r | |
354 | } /* end if char */\r | |
355 | } /* end if conn */\r | |
356 | else if ((pas_sta[ln] & STA_CROF) == 0) { /* not conn, was conn? */\r | |
357 | pas_sta[ln] = pas_sta[ln] | STA_CROF; /* no carrier */\r | |
358 | if (pas_rarm[ln]) SET_INT (v_PAS + ln + ln); /* intr */\r | |
359 | }\r | |
360 | } /* end for */\r | |
361 | return SCPE_OK;\r | |
362 | }\r | |
363 | \r | |
364 | /* Unit service - transmit side */\r | |
365 | \r | |
366 | t_stat paso_svc (UNIT *uptr)\r | |
367 | {\r | |
368 | int32 c;\r | |
369 | uint32 ln = uptr - pasl_unit; /* line # */\r | |
370 | \r | |
371 | if (pas_ldsc[ln].conn) { /* connected? */\r | |
372 | if (pas_ldsc[ln].xmte) { /* xmt enabled? */\r | |
373 | TMLN *lp = &pas_ldsc[ln]; /* get line */\r | |
374 | if (TT_GET_MODE (pasl_unit[ln].flags) == TT_MODE_8B)\r | |
375 | c = pas_par (pas_cmd[ln], pas_xbuf[ln]); /* apply parity */\r | |
376 | else c = sim_tt_outcvt (pas_xbuf[ln], TT_GET_MODE (pasl_unit[ln].flags));\r | |
377 | if (c >= 0) {\r | |
378 | tmxr_putc_ln (lp, c); /* output char */\r | |
379 | }\r | |
380 | tmxr_poll_tx (&pas_desc); /* poll xmt */\r | |
381 | }\r | |
382 | else { /* buf full */\r | |
383 | tmxr_poll_tx (&pas_desc); /* poll xmt */\r | |
384 | sim_activate (uptr, pasl_unit[ln].wait); /* wait */\r | |
385 | return SCPE_OK;\r | |
386 | }\r | |
387 | }\r | |
388 | pas_sta[ln] = pas_sta[ln] & ~STA_BSY; /* not busy */\r | |
389 | if (pas_xarm[ln]) SET_INT (v_PASX + ln + ln); /* set intr */\r | |
390 | return SCPE_OK;\r | |
391 | }\r | |
392 | \r | |
393 | int32 pas_par (int32 cmd, int32 c)\r | |
394 | {\r | |
395 | int32 pf = GET_PAR (cmd);\r | |
396 | static const uint8 odd_par[] = {\r | |
397 | 0x80, 0, 0, 0x80, 0, 0x80, 0x80, 0, /* 00 */\r | |
398 | 0, 0x80, 0x80, 0, 0x80, 0, 0, 0x80,\r | |
399 | 0, 0x80, 0x80, 0, 0x80, 0, 0, 0x80, /* 10 */\r | |
400 | 0x80, 0, 0, 0x80, 0, 0x80, 0x80, 0,\r | |
401 | 0, 0x80, 0x80, 0, 0x80, 0, 0, 0x80, /* 20 */\r | |
402 | 0x80, 0, 0, 0x80, 0, 0x80, 0x80, 0,\r | |
403 | 0x80, 0, 0, 0x80, 0, 0x80, 0x80, 0, /* 30 */\r | |
404 | 0, 0x80, 0x80, 0, 0x80, 0, 0, 0x80,\r | |
405 | 0, 0x80, 0x80, 0, 0x80, 0, 0, 0x80, /* 40 */\r | |
406 | 0x80, 0, 0, 0x80, 0, 0x80, 0x80, 0,\r | |
407 | 0x80, 0, 0, 0x80, 0, 0x80, 0x80, 0, /* 50 */\r | |
408 | 0, 0x80, 0x80, 0, 0x80, 0, 0, 0x80,\r | |
409 | 0x80, 0, 0, 0x80, 0, 0x80, 0x80, 0, /* 60 */\r | |
410 | 0, 0x80, 0x80, 0, 0x80, 0, 0, 0x80,\r | |
411 | 0, 0x80, 0x80, 0, 0x80, 0, 0, 0x80, /* 70 */\r | |
412 | 0x80, 0, 0, 0x80, 0, 0x80, 0x80, 0,\r | |
413 | 0, 0x80, 0x80, 0, 0x80, 0, 0, 0x80, /* 80 */\r | |
414 | 0x80, 0, 0, 0x80, 0, 0x80, 0x80, 0,\r | |
415 | 0x80, 0, 0, 0x80, 0, 0x80, 0x80, 0, /* 90 */\r | |
416 | 0, 0x80, 0x80, 0, 0x80, 0, 0, 0x80,\r | |
417 | 0x80, 0, 0, 0x80, 0, 0x80, 0x80, 0, /* A0 */\r | |
418 | 0, 0x80, 0x80, 0, 0x80, 0, 0, 0x80,\r | |
419 | 0, 0x80, 0x80, 0, 0x80, 0, 0, 0x80, /* B0 */\r | |
420 | 0x80, 0, 0, 0x80, 0, 0x80, 0x80, 0,\r | |
421 | 0x80, 0, 0, 0x80, 0, 0x80, 0x80, 0, /* C0 */\r | |
422 | 0, 0x80, 0x80, 0, 0x80, 0, 0, 0x80,\r | |
423 | 0, 0x80, 0x80, 0, 0x80, 0, 0, 0x80, /* D0 */\r | |
424 | 0x80, 0, 0, 0x80, 0, 0x80, 0x80, 0,\r | |
425 | 0, 0x80, 0x80, 0, 0x80, 0, 0, 0x80, /* E0 */\r | |
426 | 0x80, 0, 0, 0x80, 0, 0x80, 0x80, 0,\r | |
427 | 0x80, 0, 0, 0x80, 0, 0x80, 0x80, 0, /* F0 */\r | |
428 | 0, 0x80, 0x80, 0, 0x80, 0, 0, 0x80\r | |
429 | };\r | |
430 | \r | |
431 | switch (pf) { /* case on parity */\r | |
432 | \r | |
433 | case PAR_ODD:\r | |
434 | return (odd_par[c & 0x7F]) | (c & 0x7F);\r | |
435 | \r | |
436 | case PAR_EVEN:\r | |
437 | return (odd_par[c & 0x7F] ^ 0x80) | (c & 0x7F);\r | |
438 | \r | |
439 | case PAR_NONE:\r | |
440 | case PAR_RAW:\r | |
441 | break;\r | |
442 | }\r | |
443 | \r | |
444 | return c & 0xFF;\r | |
445 | }\r | |
446 | \r | |
447 | /* Reset routine */\r | |
448 | \r | |
449 | t_stat pas_reset (DEVICE *dptr)\r | |
450 | {\r | |
451 | int32 i;\r | |
452 | \r | |
453 | if (dptr->flags & DEV_DIS) { /* disabled? */\r | |
454 | pas_dev.flags = pas_dev.flags | DEV_DIS; /* disable lines */\r | |
455 | pasl_dev.flags = pasl_dev.flags | DEV_DIS;\r | |
456 | }\r | |
457 | else {\r | |
458 | pas_dev.flags = pas_dev.flags & ~DEV_DIS; /* enable lines */\r | |
459 | pasl_dev.flags = pasl_dev.flags & ~DEV_DIS;\r | |
460 | }\r | |
461 | if (pas_unit.flags & UNIT_ATT) /* master att? */\r | |
462 | sim_activate_abs (&pas_unit, lfc_poll); /* cosched with clock */\r | |
463 | else sim_cancel (&pas_unit); /* else stop */\r | |
464 | for (i = 0; i < PAS_LINES; i++) pas_reset_ln (i);\r | |
465 | return SCPE_OK;\r | |
466 | }\r | |
467 | \r | |
468 | /* Attach master unit */\r | |
469 | \r | |
470 | t_stat pas_attach (UNIT *uptr, char *cptr)\r | |
471 | {\r | |
472 | t_stat r;\r | |
473 | \r | |
474 | r = tmxr_attach (&pas_desc, uptr, cptr); /* attach */\r | |
475 | if (r != SCPE_OK) return r; /* error */\r | |
476 | sim_activate_abs (uptr, 100); /* quick poll */\r | |
477 | return SCPE_OK;\r | |
478 | }\r | |
479 | \r | |
480 | /* Detach master unit */\r | |
481 | \r | |
482 | t_stat pas_detach (UNIT *uptr)\r | |
483 | {\r | |
484 | int32 i;\r | |
485 | t_stat r;\r | |
486 | \r | |
487 | r = tmxr_detach (&pas_desc, uptr); /* detach */\r | |
488 | for (i = 0; i < PAS_LINES; i++) pas_ldsc[i].rcve = 0; /* disable rcv */\r | |
489 | sim_cancel (uptr); /* stop poll */\r | |
490 | return r;\r | |
491 | }\r | |
492 | \r | |
493 | /* Show summary processor */\r | |
494 | \r | |
495 | t_stat pas_summ (FILE *st, UNIT *uptr, int32 val, void *desc)\r | |
496 | {\r | |
497 | int32 i, t;\r | |
498 | \r | |
499 | for (i = t = 0; i < PAS_LINES; i++) t = t + (pas_ldsc[i].conn != 0);\r | |
500 | if (t == 1) fprintf (st, "1 connection");\r | |
501 | else fprintf (st, "%d connections", t);\r | |
502 | return SCPE_OK;\r | |
503 | }\r | |
504 | \r | |
505 | /* SHOW CONN/STAT processor */\r | |
506 | \r | |
507 | t_stat pas_show (FILE *st, UNIT *uptr, int32 val, void *desc)\r | |
508 | {\r | |
509 | int32 i, t;\r | |
510 | \r | |
511 | for (i = t = 0; i < PAS_LINES; i++) t = t + (pas_ldsc[i].conn != 0);\r | |
512 | if (t) {\r | |
513 | for (i = 0; i < PAS_LINES; i++) {\r | |
514 | if (pas_ldsc[i].conn) {\r | |
515 | if (val) tmxr_fconns (st, &pas_ldsc[i], i);\r | |
516 | else tmxr_fstats (st, &pas_ldsc[i], i);\r | |
517 | }\r | |
518 | }\r | |
519 | }\r | |
520 | else fprintf (st, "all disconnected\n");\r | |
521 | return SCPE_OK;\r | |
522 | }\r | |
523 | \r | |
524 | /* Change number of lines */\r | |
525 | \r | |
526 | t_stat pas_vlines (UNIT *uptr, int32 val, char *cptr, void *desc)\r | |
527 | {\r | |
528 | int32 newln, i, t;\r | |
529 | t_stat r;\r | |
530 | \r | |
531 | if (cptr == NULL) return SCPE_ARG;\r | |
532 | newln = get_uint (cptr, 10, PAS_LINES, &r);\r | |
533 | if ((r != SCPE_OK) || (newln == PAS_ENAB)) return r;\r | |
534 | if (newln == 0) return SCPE_ARG;\r | |
535 | if (newln < PAS_ENAB) {\r | |
536 | for (i = newln, t = 0; i < PAS_ENAB; i++) t = t | pas_ldsc[i].conn;\r | |
537 | if (t && !get_yn ("This will disconnect users; proceed [N]?", FALSE))\r | |
538 | return SCPE_OK;\r | |
539 | for (i = newln; i < PAS_ENAB; i++) {\r | |
540 | if (pas_ldsc[i].conn) {\r | |
541 | tmxr_linemsg (&pas_ldsc[i], "\r\nOperator disconnected line\r\n");\r | |
542 | tmxr_reset_ln (&pas_ldsc[i]); /* reset line */\r | |
543 | }\r | |
544 | pasl_unit[i].flags = pasl_unit[i].flags | UNIT_DIS;\r | |
545 | pas_reset_ln (i);\r | |
546 | }\r | |
547 | }\r | |
548 | else {\r | |
549 | for (i = PAS_ENAB; i < newln; i++) {\r | |
550 | pasl_unit[i].flags = pasl_unit[i].flags & ~UNIT_DIS;\r | |
551 | pas_reset_ln (i);\r | |
552 | }\r | |
553 | }\r | |
554 | PAS_ENAB = newln;\r | |
555 | return SCPE_OK;\r | |
556 | }\r | |
557 | \r | |
558 | /* Reset an individual line */\r | |
559 | \r | |
560 | void pas_reset_ln (int32 i)\r | |
561 | {\r | |
562 | CLR_INT (v_PAS + i + i); /* clear int */\r | |
563 | CLR_ENB (v_PAS + i + i);\r | |
564 | CLR_INT (v_PASX + i + i); /* disable int */\r | |
565 | CLR_ENB (v_PASX + i + i);\r | |
566 | pas_rarm[i] = pas_xarm[i] = 0; /* disarm int */\r | |
567 | pas_rbuf[i] = pas_xbuf[i] = 0; /* clear state */\r | |
568 | pas_cmd[i] = 0;\r | |
569 | pas_rchp[i] = 0;\r | |
570 | pas_sta[i] = 0;\r | |
571 | if (pas_ldsc[i].conn == 0) /* clear carrier */\r | |
572 | pas_sta[i] = pas_sta[i] | STA_CROF;\r | |
573 | sim_cancel (&pasl_unit[i]);\r | |
574 | return;\r | |
575 | }\r | |
576 | \r | |
577 | /* Init template */\r | |
578 | \r | |
579 | void pas_ini (t_bool dtpl)\r | |
580 | {\r | |
581 | int32 i, j;\r | |
582 | \r | |
583 | for (i = j = 0; i < PAS_ENAB; i++) {\r | |
584 | pas_tplte[j] = j;\r | |
585 | pas_tplte[j + 1] = j + o_PASX;\r | |
586 | j = j + 2;\r | |
587 | }\r | |
588 | pas_tplte[j] = TPL_END;\r | |
589 | return;\r | |
590 | }\r |