Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* $Id: isdn_tty.c,v 1.1.2.3 2004/02/10 01:07:13 keil Exp $ |
2 | * | |
3 | * Linux ISDN subsystem, tty functions and AT-command emulator (linklevel). | |
4 | * | |
5 | * Copyright 1994-1999 by Fritz Elfert (fritz@isdn4linux.de) | |
6 | * Copyright 1995,96 by Thinking Objects Software GmbH Wuerzburg | |
7 | * | |
8 | * This software may be used and distributed according to the terms | |
9 | * of the GNU General Public License, incorporated herein by reference. | |
10 | * | |
11 | */ | |
12 | #undef ISDN_TTY_STAT_DEBUG | |
13 | ||
14 | #include <linux/config.h> | |
15 | #include <linux/isdn.h> | |
16 | #include <linux/delay.h> | |
17 | #include "isdn_common.h" | |
18 | #include "isdn_tty.h" | |
19 | #ifdef CONFIG_ISDN_AUDIO | |
20 | #include "isdn_audio.h" | |
21 | #define VBUF 0x3e0 | |
22 | #define VBUFX (VBUF/16) | |
23 | #endif | |
24 | ||
25 | #define FIX_FILE_TRANSFER | |
26 | #define DUMMY_HAYES_AT | |
27 | ||
28 | /* Prototypes */ | |
29 | ||
30 | static int isdn_tty_edit_at(const char *, int, modem_info *); | |
31 | static void isdn_tty_check_esc(const u_char *, u_char, int, int *, u_long *); | |
32 | static void isdn_tty_modem_reset_regs(modem_info *, int); | |
33 | static void isdn_tty_cmd_ATA(modem_info *); | |
34 | static void isdn_tty_flush_buffer(struct tty_struct *); | |
35 | static void isdn_tty_modem_result(int, modem_info *); | |
36 | #ifdef CONFIG_ISDN_AUDIO | |
37 | static int isdn_tty_countDLE(unsigned char *, int); | |
38 | #endif | |
39 | ||
40 | /* Leave this unchanged unless you know what you do! */ | |
41 | #define MODEM_PARANOIA_CHECK | |
42 | #define MODEM_DO_RESTART | |
43 | ||
44 | static int bit2si[8] = | |
45 | {1, 5, 7, 7, 7, 7, 7, 7}; | |
46 | static int si2bit[8] = | |
47 | {4, 1, 4, 4, 4, 4, 4, 4}; | |
48 | ||
49 | char *isdn_tty_revision = "$Revision: 1.1.2.3 $"; | |
50 | ||
51 | ||
52 | /* isdn_tty_try_read() is called from within isdn_tty_rcv_skb() | |
53 | * to stuff incoming data directly into a tty's flip-buffer. This | |
54 | * is done to speed up tty-receiving if the receive-queue is empty. | |
55 | * This routine MUST be called with interrupts off. | |
56 | * Return: | |
57 | * 1 = Success | |
58 | * 0 = Failure, data has to be buffered and later processed by | |
59 | * isdn_tty_readmodem(). | |
60 | */ | |
61 | static int | |
62 | isdn_tty_try_read(modem_info * info, struct sk_buff *skb) | |
63 | { | |
64 | int c; | |
65 | int len; | |
66 | struct tty_struct *tty; | |
67 | ||
68 | if (info->online) { | |
69 | if ((tty = info->tty)) { | |
70 | if (info->mcr & UART_MCR_RTS) { | |
71 | c = TTY_FLIPBUF_SIZE - tty->flip.count; | |
72 | len = skb->len | |
73 | #ifdef CONFIG_ISDN_AUDIO | |
74 | + ISDN_AUDIO_SKB_DLECOUNT(skb) | |
75 | #endif | |
76 | ; | |
77 | if (c >= len) { | |
78 | #ifdef CONFIG_ISDN_AUDIO | |
79 | if (ISDN_AUDIO_SKB_DLECOUNT(skb)) | |
80 | while (skb->len--) { | |
81 | if (*skb->data == DLE) | |
82 | tty_insert_flip_char(tty, DLE, 0); | |
83 | tty_insert_flip_char(tty, *skb->data++, 0); | |
84 | } else { | |
85 | #endif | |
86 | memcpy(tty->flip.char_buf_ptr, | |
87 | skb->data, len); | |
88 | tty->flip.count += len; | |
89 | tty->flip.char_buf_ptr += len; | |
90 | memset(tty->flip.flag_buf_ptr, 0, len); | |
91 | tty->flip.flag_buf_ptr += len; | |
92 | #ifdef CONFIG_ISDN_AUDIO | |
93 | } | |
94 | #endif | |
95 | if (info->emu.mdmreg[REG_CPPP] & BIT_CPPP) | |
96 | tty->flip.flag_buf_ptr[len - 1] = 0xff; | |
97 | schedule_delayed_work(&tty->flip.work, 1); | |
98 | kfree_skb(skb); | |
99 | return 1; | |
100 | } | |
101 | } | |
102 | } | |
103 | } | |
104 | return 0; | |
105 | } | |
106 | ||
107 | /* isdn_tty_readmodem() is called periodically from within timer-interrupt. | |
108 | * It tries getting received data from the receive queue an stuff it into | |
109 | * the tty's flip-buffer. | |
110 | */ | |
111 | void | |
112 | isdn_tty_readmodem(void) | |
113 | { | |
114 | int resched = 0; | |
115 | int midx; | |
116 | int i; | |
117 | int c; | |
118 | int r; | |
119 | struct tty_struct *tty; | |
120 | modem_info *info; | |
121 | ||
122 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
123 | if ((midx = dev->m_idx[i]) >= 0) { | |
124 | info = &dev->mdm.info[midx]; | |
125 | if (info->online) { | |
126 | r = 0; | |
127 | #ifdef CONFIG_ISDN_AUDIO | |
128 | isdn_audio_eval_dtmf(info); | |
129 | if ((info->vonline & 1) && (info->emu.vpar[1])) | |
130 | isdn_audio_eval_silence(info); | |
131 | #endif | |
132 | if ((tty = info->tty)) { | |
133 | if (info->mcr & UART_MCR_RTS) { | |
134 | c = TTY_FLIPBUF_SIZE - tty->flip.count; | |
135 | if (c > 0) { | |
136 | r = isdn_readbchan(info->isdn_driver, info->isdn_channel, | |
137 | tty->flip.char_buf_ptr, | |
138 | tty->flip.flag_buf_ptr, c, NULL); | |
139 | /* CISCO AsyncPPP Hack */ | |
140 | if (!(info->emu.mdmreg[REG_CPPP] & BIT_CPPP)) | |
141 | memset(tty->flip.flag_buf_ptr, 0, r); | |
142 | tty->flip.count += r; | |
143 | tty->flip.flag_buf_ptr += r; | |
144 | tty->flip.char_buf_ptr += r; | |
145 | if (r) | |
146 | schedule_delayed_work(&tty->flip.work, 1); | |
147 | } | |
148 | } else | |
149 | r = 1; | |
150 | } else | |
151 | r = 1; | |
152 | if (r) { | |
153 | info->rcvsched = 0; | |
154 | resched = 1; | |
155 | } else | |
156 | info->rcvsched = 1; | |
157 | } | |
158 | } | |
159 | } | |
160 | if (!resched) | |
161 | isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 0); | |
162 | } | |
163 | ||
164 | int | |
165 | isdn_tty_rcv_skb(int i, int di, int channel, struct sk_buff *skb) | |
166 | { | |
167 | ulong flags; | |
168 | int midx; | |
169 | #ifdef CONFIG_ISDN_AUDIO | |
170 | int ifmt; | |
171 | #endif | |
172 | modem_info *info; | |
173 | ||
174 | if ((midx = dev->m_idx[i]) < 0) { | |
175 | /* if midx is invalid, packet is not for tty */ | |
176 | return 0; | |
177 | } | |
178 | info = &dev->mdm.info[midx]; | |
179 | #ifdef CONFIG_ISDN_AUDIO | |
180 | ifmt = 1; | |
181 | ||
182 | if ((info->vonline) && (!info->emu.vpar[4])) | |
183 | isdn_audio_calc_dtmf(info, skb->data, skb->len, ifmt); | |
184 | if ((info->vonline & 1) && (info->emu.vpar[1])) | |
185 | isdn_audio_calc_silence(info, skb->data, skb->len, ifmt); | |
186 | #endif | |
187 | if ((info->online < 2) | |
188 | #ifdef CONFIG_ISDN_AUDIO | |
189 | && (!(info->vonline & 1)) | |
190 | #endif | |
191 | ) { | |
192 | /* If Modem not listening, drop data */ | |
193 | kfree_skb(skb); | |
194 | return 1; | |
195 | } | |
196 | if (info->emu.mdmreg[REG_T70] & BIT_T70) { | |
197 | if (info->emu.mdmreg[REG_T70] & BIT_T70_EXT) { | |
198 | /* T.70 decoding: throw away the T.70 header (2 or 4 bytes) */ | |
199 | if (skb->data[0] == 3) /* pure data packet -> 4 byte headers */ | |
200 | skb_pull(skb, 4); | |
201 | else | |
202 | if (skb->data[0] == 1) /* keepalive packet -> 2 byte hdr */ | |
203 | skb_pull(skb, 2); | |
204 | } else | |
205 | /* T.70 decoding: Simply throw away the T.70 header (4 bytes) */ | |
206 | if ((skb->data[0] == 1) && ((skb->data[1] == 0) || (skb->data[1] == 1))) | |
207 | skb_pull(skb, 4); | |
208 | } | |
209 | #ifdef CONFIG_ISDN_AUDIO | |
210 | ISDN_AUDIO_SKB_DLECOUNT(skb) = 0; | |
211 | ISDN_AUDIO_SKB_LOCK(skb) = 0; | |
212 | if (info->vonline & 1) { | |
213 | /* voice conversion/compression */ | |
214 | switch (info->emu.vpar[3]) { | |
215 | case 2: | |
216 | case 3: | |
217 | case 4: | |
218 | /* adpcm | |
219 | * Since compressed data takes less | |
220 | * space, we can overwrite the buffer. | |
221 | */ | |
222 | skb_trim(skb, isdn_audio_xlaw2adpcm(info->adpcmr, | |
223 | ifmt, | |
224 | skb->data, | |
225 | skb->data, | |
226 | skb->len)); | |
227 | break; | |
228 | case 5: | |
229 | /* a-law */ | |
230 | if (!ifmt) | |
231 | isdn_audio_ulaw2alaw(skb->data, skb->len); | |
232 | break; | |
233 | case 6: | |
234 | /* u-law */ | |
235 | if (ifmt) | |
236 | isdn_audio_alaw2ulaw(skb->data, skb->len); | |
237 | break; | |
238 | } | |
239 | ISDN_AUDIO_SKB_DLECOUNT(skb) = | |
240 | isdn_tty_countDLE(skb->data, skb->len); | |
241 | } | |
242 | #ifdef CONFIG_ISDN_TTY_FAX | |
243 | else { | |
244 | if (info->faxonline & 2) { | |
245 | isdn_tty_fax_bitorder(info, skb); | |
246 | ISDN_AUDIO_SKB_DLECOUNT(skb) = | |
247 | isdn_tty_countDLE(skb->data, skb->len); | |
248 | } | |
249 | } | |
250 | #endif | |
251 | #endif | |
252 | /* Try to deliver directly via tty-flip-buf if queue is empty */ | |
253 | spin_lock_irqsave(&info->readlock, flags); | |
254 | if (skb_queue_empty(&dev->drv[di]->rpqueue[channel])) | |
255 | if (isdn_tty_try_read(info, skb)) { | |
256 | spin_unlock_irqrestore(&info->readlock, flags); | |
257 | return 1; | |
258 | } | |
259 | /* Direct deliver failed or queue wasn't empty. | |
260 | * Queue up for later dequeueing via timer-irq. | |
261 | */ | |
262 | __skb_queue_tail(&dev->drv[di]->rpqueue[channel], skb); | |
263 | dev->drv[di]->rcvcount[channel] += | |
264 | (skb->len | |
265 | #ifdef CONFIG_ISDN_AUDIO | |
266 | + ISDN_AUDIO_SKB_DLECOUNT(skb) | |
267 | #endif | |
268 | ); | |
269 | spin_unlock_irqrestore(&info->readlock, flags); | |
270 | /* Schedule dequeuing */ | |
271 | if ((dev->modempoll) && (info->rcvsched)) | |
272 | isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1); | |
273 | return 1; | |
274 | } | |
275 | ||
276 | void | |
277 | isdn_tty_cleanup_xmit(modem_info * info) | |
278 | { | |
279 | skb_queue_purge(&info->xmit_queue); | |
280 | #ifdef CONFIG_ISDN_AUDIO | |
281 | skb_queue_purge(&info->dtmf_queue); | |
282 | #endif | |
283 | } | |
284 | ||
285 | static void | |
286 | isdn_tty_tint(modem_info * info) | |
287 | { | |
288 | struct sk_buff *skb = skb_dequeue(&info->xmit_queue); | |
289 | int len, slen; | |
290 | ||
291 | if (!skb) | |
292 | return; | |
293 | len = skb->len; | |
294 | if ((slen = isdn_writebuf_skb_stub(info->isdn_driver, | |
295 | info->isdn_channel, 1, skb)) == len) { | |
296 | struct tty_struct *tty = info->tty; | |
297 | info->send_outstanding++; | |
298 | info->msr &= ~UART_MSR_CTS; | |
299 | info->lsr &= ~UART_LSR_TEMT; | |
300 | tty_wakeup(tty); | |
301 | return; | |
302 | } | |
303 | if (slen < 0) { | |
304 | /* Error: no channel, already shutdown, or wrong parameter */ | |
305 | dev_kfree_skb(skb); | |
306 | return; | |
307 | } | |
308 | skb_queue_head(&info->xmit_queue, skb); | |
309 | } | |
310 | ||
311 | #ifdef CONFIG_ISDN_AUDIO | |
312 | static int | |
313 | isdn_tty_countDLE(unsigned char *buf, int len) | |
314 | { | |
315 | int count = 0; | |
316 | ||
317 | while (len--) | |
318 | if (*buf++ == DLE) | |
319 | count++; | |
320 | return count; | |
321 | } | |
322 | ||
323 | /* This routine is called from within isdn_tty_write() to perform | |
324 | * DLE-decoding when sending audio-data. | |
325 | */ | |
326 | static int | |
327 | isdn_tty_handleDLEdown(modem_info * info, atemu * m, int len) | |
328 | { | |
329 | unsigned char *p = &info->xmit_buf[info->xmit_count]; | |
330 | int count = 0; | |
331 | ||
332 | while (len > 0) { | |
333 | if (m->lastDLE) { | |
334 | m->lastDLE = 0; | |
335 | switch (*p) { | |
336 | case DLE: | |
337 | /* Escape code */ | |
338 | if (len > 1) | |
339 | memmove(p, p + 1, len - 1); | |
340 | p--; | |
341 | count++; | |
342 | break; | |
343 | case ETX: | |
344 | /* End of data */ | |
345 | info->vonline |= 4; | |
346 | return count; | |
347 | case DC4: | |
348 | /* Abort RX */ | |
349 | info->vonline &= ~1; | |
350 | #ifdef ISDN_DEBUG_MODEM_VOICE | |
351 | printk(KERN_DEBUG | |
352 | "DLEdown: got DLE-DC4, send DLE-ETX on ttyI%d\n", | |
353 | info->line); | |
354 | #endif | |
355 | isdn_tty_at_cout("\020\003", info); | |
356 | if (!info->vonline) { | |
357 | #ifdef ISDN_DEBUG_MODEM_VOICE | |
358 | printk(KERN_DEBUG | |
359 | "DLEdown: send VCON on ttyI%d\n", | |
360 | info->line); | |
361 | #endif | |
362 | isdn_tty_at_cout("\r\nVCON\r\n", info); | |
363 | } | |
364 | /* Fall through */ | |
365 | case 'q': | |
366 | case 's': | |
367 | /* Silence */ | |
368 | if (len > 1) | |
369 | memmove(p, p + 1, len - 1); | |
370 | p--; | |
371 | break; | |
372 | } | |
373 | } else { | |
374 | if (*p == DLE) | |
375 | m->lastDLE = 1; | |
376 | else | |
377 | count++; | |
378 | } | |
379 | p++; | |
380 | len--; | |
381 | } | |
382 | if (len < 0) { | |
383 | printk(KERN_WARNING "isdn_tty: len<0 in DLEdown\n"); | |
384 | return 0; | |
385 | } | |
386 | return count; | |
387 | } | |
388 | ||
389 | /* This routine is called from within isdn_tty_write() when receiving | |
390 | * audio-data. It interrupts receiving, if an character other than | |
391 | * ^S or ^Q is sent. | |
392 | */ | |
393 | static int | |
394 | isdn_tty_end_vrx(const char *buf, int c) | |
395 | { | |
396 | char ch; | |
397 | ||
398 | while (c--) { | |
399 | ch = *buf; | |
400 | if ((ch != 0x11) && (ch != 0x13)) | |
401 | return 1; | |
402 | buf++; | |
403 | } | |
404 | return 0; | |
405 | } | |
406 | ||
407 | static int voice_cf[7] = | |
408 | {0, 0, 4, 3, 2, 0, 0}; | |
409 | ||
410 | #endif /* CONFIG_ISDN_AUDIO */ | |
411 | ||
412 | /* isdn_tty_senddown() is called either directly from within isdn_tty_write() | |
413 | * or via timer-interrupt from within isdn_tty_modem_xmit(). It pulls | |
414 | * outgoing data from the tty's xmit-buffer, handles voice-decompression or | |
415 | * T.70 if necessary, and finally queues it up for sending via isdn_tty_tint. | |
416 | */ | |
417 | static void | |
418 | isdn_tty_senddown(modem_info * info) | |
419 | { | |
420 | int buflen; | |
421 | int skb_res; | |
422 | #ifdef CONFIG_ISDN_AUDIO | |
423 | int audio_len; | |
424 | #endif | |
425 | struct sk_buff *skb; | |
426 | ||
427 | #ifdef CONFIG_ISDN_AUDIO | |
428 | if (info->vonline & 4) { | |
429 | info->vonline &= ~6; | |
430 | if (!info->vonline) { | |
431 | #ifdef ISDN_DEBUG_MODEM_VOICE | |
432 | printk(KERN_DEBUG | |
433 | "senddown: send VCON on ttyI%d\n", | |
434 | info->line); | |
435 | #endif | |
436 | isdn_tty_at_cout("\r\nVCON\r\n", info); | |
437 | } | |
438 | } | |
439 | #endif | |
440 | if (!(buflen = info->xmit_count)) | |
441 | return; | |
442 | if ((info->emu.mdmreg[REG_CTS] & BIT_CTS) != 0) | |
443 | info->msr &= ~UART_MSR_CTS; | |
444 | info->lsr &= ~UART_LSR_TEMT; | |
445 | /* info->xmit_count is modified here and in isdn_tty_write(). | |
446 | * So we return here if isdn_tty_write() is in the | |
447 | * critical section. | |
448 | */ | |
449 | atomic_inc(&info->xmit_lock); | |
450 | if (!(atomic_dec_and_test(&info->xmit_lock))) | |
451 | return; | |
452 | if (info->isdn_driver < 0) { | |
453 | info->xmit_count = 0; | |
454 | return; | |
455 | } | |
456 | skb_res = dev->drv[info->isdn_driver]->interface->hl_hdrlen + 4; | |
457 | #ifdef CONFIG_ISDN_AUDIO | |
458 | if (info->vonline & 2) | |
459 | audio_len = buflen * voice_cf[info->emu.vpar[3]]; | |
460 | else | |
461 | audio_len = 0; | |
462 | skb = dev_alloc_skb(skb_res + buflen + audio_len); | |
463 | #else | |
464 | skb = dev_alloc_skb(skb_res + buflen); | |
465 | #endif | |
466 | if (!skb) { | |
467 | printk(KERN_WARNING | |
468 | "isdn_tty: Out of memory in ttyI%d senddown\n", | |
469 | info->line); | |
470 | return; | |
471 | } | |
472 | skb_reserve(skb, skb_res); | |
473 | memcpy(skb_put(skb, buflen), info->xmit_buf, buflen); | |
474 | info->xmit_count = 0; | |
475 | #ifdef CONFIG_ISDN_AUDIO | |
476 | if (info->vonline & 2) { | |
477 | /* For now, ifmt is fixed to 1 (alaw), since this | |
478 | * is used with ISDN everywhere in the world, except | |
479 | * US, Canada and Japan. | |
480 | * Later, when US-ISDN protocols are implemented, | |
481 | * this setting will depend on the D-channel protocol. | |
482 | */ | |
483 | int ifmt = 1; | |
484 | ||
485 | /* voice conversion/decompression */ | |
486 | switch (info->emu.vpar[3]) { | |
487 | case 2: | |
488 | case 3: | |
489 | case 4: | |
490 | /* adpcm, compatible to ZyXel 1496 modem | |
491 | * with ROM revision 6.01 | |
492 | */ | |
493 | audio_len = isdn_audio_adpcm2xlaw(info->adpcms, | |
494 | ifmt, | |
495 | skb->data, | |
496 | skb_put(skb, audio_len), | |
497 | buflen); | |
498 | skb_pull(skb, buflen); | |
499 | skb_trim(skb, audio_len); | |
500 | break; | |
501 | case 5: | |
502 | /* a-law */ | |
503 | if (!ifmt) | |
504 | isdn_audio_alaw2ulaw(skb->data, | |
505 | buflen); | |
506 | break; | |
507 | case 6: | |
508 | /* u-law */ | |
509 | if (ifmt) | |
510 | isdn_audio_ulaw2alaw(skb->data, | |
511 | buflen); | |
512 | break; | |
513 | } | |
514 | } | |
515 | #endif /* CONFIG_ISDN_AUDIO */ | |
516 | if (info->emu.mdmreg[REG_T70] & BIT_T70) { | |
517 | /* Add T.70 simplified header */ | |
518 | if (info->emu.mdmreg[REG_T70] & BIT_T70_EXT) | |
519 | memcpy(skb_push(skb, 2), "\1\0", 2); | |
520 | else | |
521 | memcpy(skb_push(skb, 4), "\1\0\1\0", 4); | |
522 | } | |
523 | skb_queue_tail(&info->xmit_queue, skb); | |
524 | } | |
525 | ||
526 | /************************************************************ | |
527 | * | |
528 | * Modem-functions | |
529 | * | |
530 | * mostly "stolen" from original Linux-serial.c and friends. | |
531 | * | |
532 | ************************************************************/ | |
533 | ||
534 | /* The next routine is called once from within timer-interrupt | |
535 | * triggered within isdn_tty_modem_ncarrier(). It calls | |
536 | * isdn_tty_modem_result() to stuff a "NO CARRIER" Message | |
537 | * into the tty's flip-buffer. | |
538 | */ | |
539 | static void | |
540 | isdn_tty_modem_do_ncarrier(unsigned long data) | |
541 | { | |
542 | modem_info *info = (modem_info *) data; | |
543 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
544 | } | |
545 | ||
546 | /* Next routine is called, whenever the DTR-signal is raised. | |
547 | * It checks the ncarrier-flag, and triggers the above routine | |
548 | * when necessary. The ncarrier-flag is set, whenever DTR goes | |
549 | * low. | |
550 | */ | |
551 | static void | |
552 | isdn_tty_modem_ncarrier(modem_info * info) | |
553 | { | |
554 | if (info->ncarrier) { | |
555 | info->nc_timer.expires = jiffies + HZ; | |
556 | add_timer(&info->nc_timer); | |
557 | } | |
558 | } | |
559 | ||
560 | /* | |
561 | * return the usage calculated by si and layer 2 protocol | |
562 | */ | |
563 | int | |
564 | isdn_calc_usage(int si, int l2) | |
565 | { | |
566 | int usg = ISDN_USAGE_MODEM; | |
567 | ||
568 | #ifdef CONFIG_ISDN_AUDIO | |
569 | if (si == 1) { | |
570 | switch(l2) { | |
571 | case ISDN_PROTO_L2_MODEM: | |
572 | usg = ISDN_USAGE_MODEM; | |
573 | break; | |
574 | #ifdef CONFIG_ISDN_TTY_FAX | |
575 | case ISDN_PROTO_L2_FAX: | |
576 | usg = ISDN_USAGE_FAX; | |
577 | break; | |
578 | #endif | |
579 | case ISDN_PROTO_L2_TRANS: | |
580 | default: | |
581 | usg = ISDN_USAGE_VOICE; | |
582 | break; | |
583 | } | |
584 | } | |
585 | #endif | |
586 | return(usg); | |
587 | } | |
588 | ||
589 | /* isdn_tty_dial() performs dialing of a tty an the necessary | |
590 | * setup of the lower levels before that. | |
591 | */ | |
592 | static void | |
593 | isdn_tty_dial(char *n, modem_info * info, atemu * m) | |
594 | { | |
595 | int usg = ISDN_USAGE_MODEM; | |
596 | int si = 7; | |
597 | int l2 = m->mdmreg[REG_L2PROT]; | |
598 | u_long flags; | |
599 | isdn_ctrl cmd; | |
600 | int i; | |
601 | int j; | |
602 | ||
603 | for (j = 7; j >= 0; j--) | |
604 | if (m->mdmreg[REG_SI1] & (1 << j)) { | |
605 | si = bit2si[j]; | |
606 | break; | |
607 | } | |
608 | usg = isdn_calc_usage(si, l2); | |
609 | #ifdef CONFIG_ISDN_AUDIO | |
610 | if ((si == 1) && | |
611 | (l2 != ISDN_PROTO_L2_MODEM) | |
612 | #ifdef CONFIG_ISDN_TTY_FAX | |
613 | && (l2 != ISDN_PROTO_L2_FAX) | |
614 | #endif | |
615 | ) { | |
616 | l2 = ISDN_PROTO_L2_TRANS; | |
617 | usg = ISDN_USAGE_VOICE; | |
618 | } | |
619 | #endif | |
620 | m->mdmreg[REG_SI1I] = si2bit[si]; | |
621 | spin_lock_irqsave(&dev->lock, flags); | |
622 | i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn); | |
623 | if (i < 0) { | |
624 | spin_unlock_irqrestore(&dev->lock, flags); | |
625 | isdn_tty_modem_result(RESULT_NO_DIALTONE, info); | |
626 | } else { | |
627 | info->isdn_driver = dev->drvmap[i]; | |
628 | info->isdn_channel = dev->chanmap[i]; | |
629 | info->drv_index = i; | |
630 | dev->m_idx[i] = info->line; | |
631 | dev->usage[i] |= ISDN_USAGE_OUTGOING; | |
632 | info->last_dir = 1; | |
633 | strcpy(info->last_num, n); | |
634 | isdn_info_update(); | |
635 | spin_unlock_irqrestore(&dev->lock, flags); | |
636 | cmd.driver = info->isdn_driver; | |
637 | cmd.arg = info->isdn_channel; | |
638 | cmd.command = ISDN_CMD_CLREAZ; | |
639 | isdn_command(&cmd); | |
640 | strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver)); | |
641 | cmd.driver = info->isdn_driver; | |
642 | cmd.command = ISDN_CMD_SETEAZ; | |
643 | isdn_command(&cmd); | |
644 | cmd.driver = info->isdn_driver; | |
645 | cmd.command = ISDN_CMD_SETL2; | |
646 | info->last_l2 = l2; | |
647 | cmd.arg = info->isdn_channel + (l2 << 8); | |
648 | isdn_command(&cmd); | |
649 | cmd.driver = info->isdn_driver; | |
650 | cmd.command = ISDN_CMD_SETL3; | |
651 | cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); | |
652 | #ifdef CONFIG_ISDN_TTY_FAX | |
653 | if (l2 == ISDN_PROTO_L2_FAX) { | |
654 | cmd.parm.fax = info->fax; | |
655 | info->fax->direction = ISDN_TTY_FAX_CONN_OUT; | |
656 | } | |
657 | #endif | |
658 | isdn_command(&cmd); | |
659 | cmd.driver = info->isdn_driver; | |
660 | cmd.arg = info->isdn_channel; | |
661 | sprintf(cmd.parm.setup.phone, "%s", n); | |
662 | sprintf(cmd.parm.setup.eazmsn, "%s", | |
663 | isdn_map_eaz2msn(m->msn, info->isdn_driver)); | |
664 | cmd.parm.setup.si1 = si; | |
665 | cmd.parm.setup.si2 = m->mdmreg[REG_SI2]; | |
666 | cmd.command = ISDN_CMD_DIAL; | |
667 | info->dialing = 1; | |
668 | info->emu.carrierwait = 0; | |
669 | strcpy(dev->num[i], n); | |
670 | isdn_info_update(); | |
671 | isdn_command(&cmd); | |
672 | isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1); | |
673 | } | |
674 | } | |
675 | ||
676 | /* isdn_tty_hangup() disassociates a tty from the real | |
677 | * ISDN-line (hangup). The usage-status is cleared | |
678 | * and some cleanup is done also. | |
679 | */ | |
680 | void | |
681 | isdn_tty_modem_hup(modem_info * info, int local) | |
682 | { | |
683 | isdn_ctrl cmd; | |
684 | int di, ch; | |
685 | ||
686 | if (!info) | |
687 | return; | |
688 | ||
689 | di = info->isdn_driver; | |
690 | ch = info->isdn_channel; | |
691 | if (di < 0 || ch < 0) | |
692 | return; | |
693 | ||
694 | info->isdn_driver = -1; | |
695 | info->isdn_channel = -1; | |
696 | ||
697 | #ifdef ISDN_DEBUG_MODEM_HUP | |
698 | printk(KERN_DEBUG "Mhup ttyI%d\n", info->line); | |
699 | #endif | |
700 | info->rcvsched = 0; | |
701 | isdn_tty_flush_buffer(info->tty); | |
702 | if (info->online) { | |
703 | info->last_lhup = local; | |
704 | info->online = 0; | |
705 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
706 | } | |
707 | #ifdef CONFIG_ISDN_AUDIO | |
708 | info->vonline = 0; | |
709 | #ifdef CONFIG_ISDN_TTY_FAX | |
710 | info->faxonline = 0; | |
711 | info->fax->phase = ISDN_FAX_PHASE_IDLE; | |
712 | #endif | |
713 | info->emu.vpar[4] = 0; | |
714 | info->emu.vpar[5] = 8; | |
715 | if (info->dtmf_state) { | |
716 | kfree(info->dtmf_state); | |
717 | info->dtmf_state = NULL; | |
718 | } | |
719 | if (info->silence_state) { | |
720 | kfree(info->silence_state); | |
721 | info->silence_state = NULL; | |
722 | } | |
723 | if (info->adpcms) { | |
724 | kfree(info->adpcms); | |
725 | info->adpcms = NULL; | |
726 | } | |
727 | if (info->adpcmr) { | |
728 | kfree(info->adpcmr); | |
729 | info->adpcmr = NULL; | |
730 | } | |
731 | #endif | |
732 | if ((info->msr & UART_MSR_RI) && | |
733 | (info->emu.mdmreg[REG_RUNG] & BIT_RUNG)) | |
734 | isdn_tty_modem_result(RESULT_RUNG, info); | |
735 | info->msr &= ~(UART_MSR_DCD | UART_MSR_RI); | |
736 | info->lsr |= UART_LSR_TEMT; | |
737 | ||
738 | if (local) { | |
739 | cmd.driver = di; | |
740 | cmd.command = ISDN_CMD_HANGUP; | |
741 | cmd.arg = ch; | |
742 | isdn_command(&cmd); | |
743 | } | |
744 | ||
745 | isdn_all_eaz(di, ch); | |
746 | info->emu.mdmreg[REG_RINGCNT] = 0; | |
747 | isdn_free_channel(di, ch, 0); | |
748 | ||
749 | if (info->drv_index >= 0) { | |
750 | dev->m_idx[info->drv_index] = -1; | |
751 | info->drv_index = -1; | |
752 | } | |
753 | } | |
754 | ||
755 | /* | |
756 | * Begin of a CAPI like interface, currently used only for | |
757 | * supplementary service (CAPI 2.0 part III) | |
758 | */ | |
759 | #include <linux/isdn/capicmd.h> | |
760 | ||
761 | int | |
762 | isdn_tty_capi_facility(capi_msg *cm) { | |
763 | return(-1); /* dummy */ | |
764 | } | |
765 | ||
766 | /* isdn_tty_suspend() tries to suspend the current tty connection | |
767 | */ | |
768 | static void | |
769 | isdn_tty_suspend(char *id, modem_info * info, atemu * m) | |
770 | { | |
771 | isdn_ctrl cmd; | |
772 | ||
773 | int l; | |
774 | ||
775 | if (!info) | |
776 | return; | |
777 | ||
778 | #ifdef ISDN_DEBUG_MODEM_SERVICES | |
779 | printk(KERN_DEBUG "Msusp ttyI%d\n", info->line); | |
780 | #endif | |
781 | l = strlen(id); | |
782 | if ((info->isdn_driver >= 0)) { | |
783 | cmd.parm.cmsg.Length = l+18; | |
784 | cmd.parm.cmsg.Command = CAPI_FACILITY; | |
785 | cmd.parm.cmsg.Subcommand = CAPI_REQ; | |
786 | cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1; | |
787 | cmd.parm.cmsg.para[0] = 3; /* 16 bit 0x0003 suplementary service */ | |
788 | cmd.parm.cmsg.para[1] = 0; | |
789 | cmd.parm.cmsg.para[2] = l + 3; | |
790 | cmd.parm.cmsg.para[3] = 4; /* 16 bit 0x0004 Suspend */ | |
791 | cmd.parm.cmsg.para[4] = 0; | |
792 | cmd.parm.cmsg.para[5] = l; | |
793 | strncpy(&cmd.parm.cmsg.para[6], id, l); | |
794 | cmd.command = CAPI_PUT_MESSAGE; | |
795 | cmd.driver = info->isdn_driver; | |
796 | cmd.arg = info->isdn_channel; | |
797 | isdn_command(&cmd); | |
798 | } | |
799 | } | |
800 | ||
801 | /* isdn_tty_resume() tries to resume a suspended call | |
802 | * setup of the lower levels before that. unfortunatly here is no | |
803 | * checking for compatibility of used protocols implemented by Q931 | |
804 | * It does the same things like isdn_tty_dial, the last command | |
805 | * is different, may be we can merge it. | |
806 | */ | |
807 | ||
808 | static void | |
809 | isdn_tty_resume(char *id, modem_info * info, atemu * m) | |
810 | { | |
811 | int usg = ISDN_USAGE_MODEM; | |
812 | int si = 7; | |
813 | int l2 = m->mdmreg[REG_L2PROT]; | |
814 | isdn_ctrl cmd; | |
815 | ulong flags; | |
816 | int i; | |
817 | int j; | |
818 | int l; | |
819 | ||
820 | l = strlen(id); | |
821 | for (j = 7; j >= 0; j--) | |
822 | if (m->mdmreg[REG_SI1] & (1 << j)) { | |
823 | si = bit2si[j]; | |
824 | break; | |
825 | } | |
826 | usg = isdn_calc_usage(si, l2); | |
827 | #ifdef CONFIG_ISDN_AUDIO | |
828 | if ((si == 1) && | |
829 | (l2 != ISDN_PROTO_L2_MODEM) | |
830 | #ifdef CONFIG_ISDN_TTY_FAX | |
831 | && (l2 != ISDN_PROTO_L2_FAX) | |
832 | #endif | |
833 | ) { | |
834 | l2 = ISDN_PROTO_L2_TRANS; | |
835 | usg = ISDN_USAGE_VOICE; | |
836 | } | |
837 | #endif | |
838 | m->mdmreg[REG_SI1I] = si2bit[si]; | |
839 | spin_lock_irqsave(&dev->lock, flags); | |
840 | i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn); | |
841 | if (i < 0) { | |
842 | spin_unlock_irqrestore(&dev->lock, flags); | |
843 | isdn_tty_modem_result(RESULT_NO_DIALTONE, info); | |
844 | } else { | |
845 | info->isdn_driver = dev->drvmap[i]; | |
846 | info->isdn_channel = dev->chanmap[i]; | |
847 | info->drv_index = i; | |
848 | dev->m_idx[i] = info->line; | |
849 | dev->usage[i] |= ISDN_USAGE_OUTGOING; | |
850 | info->last_dir = 1; | |
851 | // strcpy(info->last_num, n); | |
852 | isdn_info_update(); | |
853 | spin_unlock_irqrestore(&dev->lock, flags); | |
854 | cmd.driver = info->isdn_driver; | |
855 | cmd.arg = info->isdn_channel; | |
856 | cmd.command = ISDN_CMD_CLREAZ; | |
857 | isdn_command(&cmd); | |
858 | strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver)); | |
859 | cmd.driver = info->isdn_driver; | |
860 | cmd.command = ISDN_CMD_SETEAZ; | |
861 | isdn_command(&cmd); | |
862 | cmd.driver = info->isdn_driver; | |
863 | cmd.command = ISDN_CMD_SETL2; | |
864 | info->last_l2 = l2; | |
865 | cmd.arg = info->isdn_channel + (l2 << 8); | |
866 | isdn_command(&cmd); | |
867 | cmd.driver = info->isdn_driver; | |
868 | cmd.command = ISDN_CMD_SETL3; | |
869 | cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); | |
870 | isdn_command(&cmd); | |
871 | cmd.driver = info->isdn_driver; | |
872 | cmd.arg = info->isdn_channel; | |
873 | cmd.parm.cmsg.Length = l+18; | |
874 | cmd.parm.cmsg.Command = CAPI_FACILITY; | |
875 | cmd.parm.cmsg.Subcommand = CAPI_REQ; | |
876 | cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1; | |
877 | cmd.parm.cmsg.para[0] = 3; /* 16 bit 0x0003 suplementary service */ | |
878 | cmd.parm.cmsg.para[1] = 0; | |
879 | cmd.parm.cmsg.para[2] = l+3; | |
880 | cmd.parm.cmsg.para[3] = 5; /* 16 bit 0x0005 Resume */ | |
881 | cmd.parm.cmsg.para[4] = 0; | |
882 | cmd.parm.cmsg.para[5] = l; | |
883 | strncpy(&cmd.parm.cmsg.para[6], id, l); | |
884 | cmd.command =CAPI_PUT_MESSAGE; | |
885 | info->dialing = 1; | |
886 | // strcpy(dev->num[i], n); | |
887 | isdn_info_update(); | |
888 | isdn_command(&cmd); | |
889 | isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1); | |
890 | } | |
891 | } | |
892 | ||
893 | /* isdn_tty_send_msg() sends a message to a HL driver | |
894 | * This is used for hybrid modem cards to send AT commands to it | |
895 | */ | |
896 | ||
897 | static void | |
898 | isdn_tty_send_msg(modem_info * info, atemu * m, char *msg) | |
899 | { | |
900 | int usg = ISDN_USAGE_MODEM; | |
901 | int si = 7; | |
902 | int l2 = m->mdmreg[REG_L2PROT]; | |
903 | isdn_ctrl cmd; | |
904 | ulong flags; | |
905 | int i; | |
906 | int j; | |
907 | int l; | |
908 | ||
909 | l = strlen(msg); | |
910 | if (!l) { | |
911 | isdn_tty_modem_result(RESULT_ERROR, info); | |
912 | return; | |
913 | } | |
914 | for (j = 7; j >= 0; j--) | |
915 | if (m->mdmreg[REG_SI1] & (1 << j)) { | |
916 | si = bit2si[j]; | |
917 | break; | |
918 | } | |
919 | usg = isdn_calc_usage(si, l2); | |
920 | #ifdef CONFIG_ISDN_AUDIO | |
921 | if ((si == 1) && | |
922 | (l2 != ISDN_PROTO_L2_MODEM) | |
923 | #ifdef CONFIG_ISDN_TTY_FAX | |
924 | && (l2 != ISDN_PROTO_L2_FAX) | |
925 | #endif | |
926 | ) { | |
927 | l2 = ISDN_PROTO_L2_TRANS; | |
928 | usg = ISDN_USAGE_VOICE; | |
929 | } | |
930 | #endif | |
931 | m->mdmreg[REG_SI1I] = si2bit[si]; | |
932 | spin_lock_irqsave(&dev->lock, flags); | |
933 | i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn); | |
934 | if (i < 0) { | |
935 | spin_unlock_irqrestore(&dev->lock, flags); | |
936 | isdn_tty_modem_result(RESULT_NO_DIALTONE, info); | |
937 | } else { | |
938 | info->isdn_driver = dev->drvmap[i]; | |
939 | info->isdn_channel = dev->chanmap[i]; | |
940 | info->drv_index = i; | |
941 | dev->m_idx[i] = info->line; | |
942 | dev->usage[i] |= ISDN_USAGE_OUTGOING; | |
943 | info->last_dir = 1; | |
944 | isdn_info_update(); | |
945 | spin_unlock_irqrestore(&dev->lock, flags); | |
946 | cmd.driver = info->isdn_driver; | |
947 | cmd.arg = info->isdn_channel; | |
948 | cmd.command = ISDN_CMD_CLREAZ; | |
949 | isdn_command(&cmd); | |
950 | strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver)); | |
951 | cmd.driver = info->isdn_driver; | |
952 | cmd.command = ISDN_CMD_SETEAZ; | |
953 | isdn_command(&cmd); | |
954 | cmd.driver = info->isdn_driver; | |
955 | cmd.command = ISDN_CMD_SETL2; | |
956 | info->last_l2 = l2; | |
957 | cmd.arg = info->isdn_channel + (l2 << 8); | |
958 | isdn_command(&cmd); | |
959 | cmd.driver = info->isdn_driver; | |
960 | cmd.command = ISDN_CMD_SETL3; | |
961 | cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); | |
962 | isdn_command(&cmd); | |
963 | cmd.driver = info->isdn_driver; | |
964 | cmd.arg = info->isdn_channel; | |
965 | cmd.parm.cmsg.Length = l+14; | |
966 | cmd.parm.cmsg.Command = CAPI_MANUFACTURER; | |
967 | cmd.parm.cmsg.Subcommand = CAPI_REQ; | |
968 | cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1; | |
969 | cmd.parm.cmsg.para[0] = l+1; | |
970 | strncpy(&cmd.parm.cmsg.para[1], msg, l); | |
971 | cmd.parm.cmsg.para[l+1] = 0xd; | |
972 | cmd.command =CAPI_PUT_MESSAGE; | |
973 | /* info->dialing = 1; | |
974 | strcpy(dev->num[i], n); | |
975 | isdn_info_update(); | |
976 | */ | |
977 | isdn_command(&cmd); | |
978 | } | |
979 | } | |
980 | ||
981 | static inline int | |
982 | isdn_tty_paranoia_check(modem_info *info, char *name, const char *routine) | |
983 | { | |
984 | #ifdef MODEM_PARANOIA_CHECK | |
985 | if (!info) { | |
986 | printk(KERN_WARNING "isdn_tty: null info_struct for %s in %s\n", | |
987 | name, routine); | |
988 | return 1; | |
989 | } | |
990 | if (info->magic != ISDN_ASYNC_MAGIC) { | |
991 | printk(KERN_WARNING "isdn_tty: bad magic for modem struct %s in %s\n", | |
992 | name, routine); | |
993 | return 1; | |
994 | } | |
995 | #endif | |
996 | return 0; | |
997 | } | |
998 | ||
999 | /* | |
1000 | * This routine is called to set the UART divisor registers to match | |
1001 | * the specified baud rate for a serial port. | |
1002 | */ | |
1003 | static void | |
1004 | isdn_tty_change_speed(modem_info * info) | |
1005 | { | |
1006 | uint cflag, | |
1007 | cval, | |
1008 | fcr, | |
1009 | quot; | |
1010 | int i; | |
1011 | ||
1012 | if (!info->tty || !info->tty->termios) | |
1013 | return; | |
1014 | cflag = info->tty->termios->c_cflag; | |
1015 | ||
1016 | quot = i = cflag & CBAUD; | |
1017 | if (i & CBAUDEX) { | |
1018 | i &= ~CBAUDEX; | |
1019 | if (i < 1 || i > 2) | |
1020 | info->tty->termios->c_cflag &= ~CBAUDEX; | |
1021 | else | |
1022 | i += 15; | |
1023 | } | |
1024 | if (quot) { | |
1025 | info->mcr |= UART_MCR_DTR; | |
1026 | isdn_tty_modem_ncarrier(info); | |
1027 | } else { | |
1028 | info->mcr &= ~UART_MCR_DTR; | |
1029 | if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) { | |
1030 | #ifdef ISDN_DEBUG_MODEM_HUP | |
1031 | printk(KERN_DEBUG "Mhup in changespeed\n"); | |
1032 | #endif | |
1033 | if (info->online) | |
1034 | info->ncarrier = 1; | |
1035 | isdn_tty_modem_reset_regs(info, 0); | |
1036 | isdn_tty_modem_hup(info, 1); | |
1037 | } | |
1038 | return; | |
1039 | } | |
1040 | /* byte size and parity */ | |
1041 | cval = cflag & (CSIZE | CSTOPB); | |
1042 | cval >>= 4; | |
1043 | if (cflag & PARENB) | |
1044 | cval |= UART_LCR_PARITY; | |
1045 | if (!(cflag & PARODD)) | |
1046 | cval |= UART_LCR_EPAR; | |
1047 | fcr = 0; | |
1048 | ||
1049 | /* CTS flow control flag and modem status interrupts */ | |
1050 | if (cflag & CRTSCTS) { | |
1051 | info->flags |= ISDN_ASYNC_CTS_FLOW; | |
1052 | } else | |
1053 | info->flags &= ~ISDN_ASYNC_CTS_FLOW; | |
1054 | if (cflag & CLOCAL) | |
1055 | info->flags &= ~ISDN_ASYNC_CHECK_CD; | |
1056 | else { | |
1057 | info->flags |= ISDN_ASYNC_CHECK_CD; | |
1058 | } | |
1059 | } | |
1060 | ||
1061 | static int | |
1062 | isdn_tty_startup(modem_info * info) | |
1063 | { | |
1064 | if (info->flags & ISDN_ASYNC_INITIALIZED) | |
1065 | return 0; | |
1066 | isdn_lock_drivers(); | |
1067 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1068 | printk(KERN_DEBUG "starting up ttyi%d ...\n", info->line); | |
1069 | #endif | |
1070 | /* | |
1071 | * Now, initialize the UART | |
1072 | */ | |
1073 | info->mcr = UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2; | |
1074 | if (info->tty) | |
1075 | clear_bit(TTY_IO_ERROR, &info->tty->flags); | |
1076 | /* | |
1077 | * and set the speed of the serial port | |
1078 | */ | |
1079 | isdn_tty_change_speed(info); | |
1080 | ||
1081 | info->flags |= ISDN_ASYNC_INITIALIZED; | |
1082 | info->msr |= (UART_MSR_DSR | UART_MSR_CTS); | |
1083 | info->send_outstanding = 0; | |
1084 | return 0; | |
1085 | } | |
1086 | ||
1087 | /* | |
1088 | * This routine will shutdown a serial port; interrupts are disabled, and | |
1089 | * DTR is dropped if the hangup on close termio flag is on. | |
1090 | */ | |
1091 | static void | |
1092 | isdn_tty_shutdown(modem_info * info) | |
1093 | { | |
1094 | if (!(info->flags & ISDN_ASYNC_INITIALIZED)) | |
1095 | return; | |
1096 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1097 | printk(KERN_DEBUG "Shutting down isdnmodem port %d ....\n", info->line); | |
1098 | #endif | |
1099 | isdn_unlock_drivers(); | |
1100 | info->msr &= ~UART_MSR_RI; | |
1101 | if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) { | |
1102 | info->mcr &= ~(UART_MCR_DTR | UART_MCR_RTS); | |
1103 | if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) { | |
1104 | isdn_tty_modem_reset_regs(info, 0); | |
1105 | #ifdef ISDN_DEBUG_MODEM_HUP | |
1106 | printk(KERN_DEBUG "Mhup in isdn_tty_shutdown\n"); | |
1107 | #endif | |
1108 | isdn_tty_modem_hup(info, 1); | |
1109 | } | |
1110 | } | |
1111 | if (info->tty) | |
1112 | set_bit(TTY_IO_ERROR, &info->tty->flags); | |
1113 | ||
1114 | info->flags &= ~ISDN_ASYNC_INITIALIZED; | |
1115 | } | |
1116 | ||
1117 | /* isdn_tty_write() is the main send-routine. It is called from the upper | |
1118 | * levels within the kernel to perform sending data. Depending on the | |
1119 | * online-flag it either directs output to the at-command-interpreter or | |
1120 | * to the lower level. Additional tasks done here: | |
1121 | * - If online, check for escape-sequence (+++) | |
1122 | * - If sending audio-data, call isdn_tty_DLEdown() to parse DLE-codes. | |
1123 | * - If receiving audio-data, call isdn_tty_end_vrx() to abort if needed. | |
1124 | * - If dialing, abort dial. | |
1125 | */ | |
1126 | static int | |
1127 | isdn_tty_write(struct tty_struct *tty, const u_char * buf, int count) | |
1128 | { | |
1129 | int c; | |
1130 | int total = 0; | |
1131 | modem_info *info = (modem_info *) tty->driver_data; | |
1132 | atemu *m = &info->emu; | |
1133 | ||
1134 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_write")) | |
1135 | return 0; | |
1136 | /* See isdn_tty_senddown() */ | |
1137 | atomic_inc(&info->xmit_lock); | |
1138 | while (1) { | |
1139 | c = count; | |
1140 | if (c > info->xmit_size - info->xmit_count) | |
1141 | c = info->xmit_size - info->xmit_count; | |
1142 | if (info->isdn_driver >= 0 && c > dev->drv[info->isdn_driver]->maxbufsize) | |
1143 | c = dev->drv[info->isdn_driver]->maxbufsize; | |
1144 | if (c <= 0) | |
1145 | break; | |
1146 | if ((info->online > 1) | |
1147 | #ifdef CONFIG_ISDN_AUDIO | |
1148 | || (info->vonline & 3) | |
1149 | #endif | |
1150 | ) { | |
1151 | #ifdef CONFIG_ISDN_AUDIO | |
1152 | if (!info->vonline) | |
1153 | #endif | |
1154 | isdn_tty_check_esc(buf, m->mdmreg[REG_ESC], c, | |
1155 | &(m->pluscount), | |
1156 | &(m->lastplus)); | |
1157 | memcpy(&(info->xmit_buf[info->xmit_count]), buf, c); | |
1158 | #ifdef CONFIG_ISDN_AUDIO | |
1159 | if (info->vonline) { | |
1160 | int cc = isdn_tty_handleDLEdown(info, m, c); | |
1161 | if (info->vonline & 2) { | |
1162 | if (!cc) { | |
1163 | /* If DLE decoding results in zero-transmit, but | |
1164 | * c originally was non-zero, do a wakeup. | |
1165 | */ | |
1166 | tty_wakeup(tty); | |
1167 | info->msr |= UART_MSR_CTS; | |
1168 | info->lsr |= UART_LSR_TEMT; | |
1169 | } | |
1170 | info->xmit_count += cc; | |
1171 | } | |
1172 | if ((info->vonline & 3) == 1) { | |
1173 | /* Do NOT handle Ctrl-Q or Ctrl-S | |
1174 | * when in full-duplex audio mode. | |
1175 | */ | |
1176 | if (isdn_tty_end_vrx(buf, c)) { | |
1177 | info->vonline &= ~1; | |
1178 | #ifdef ISDN_DEBUG_MODEM_VOICE | |
1179 | printk(KERN_DEBUG | |
1180 | "got !^Q/^S, send DLE-ETX,VCON on ttyI%d\n", | |
1181 | info->line); | |
1182 | #endif | |
1183 | isdn_tty_at_cout("\020\003\r\nVCON\r\n", info); | |
1184 | } | |
1185 | } | |
1186 | } else | |
1187 | if (TTY_IS_FCLASS1(info)) { | |
1188 | int cc = isdn_tty_handleDLEdown(info, m, c); | |
1189 | ||
1190 | if (info->vonline & 4) { /* ETX seen */ | |
1191 | isdn_ctrl c; | |
1192 | ||
1193 | c.command = ISDN_CMD_FAXCMD; | |
1194 | c.driver = info->isdn_driver; | |
1195 | c.arg = info->isdn_channel; | |
1196 | c.parm.aux.cmd = ISDN_FAX_CLASS1_CTRL; | |
1197 | c.parm.aux.subcmd = ETX; | |
1198 | isdn_command(&c); | |
1199 | } | |
1200 | info->vonline = 0; | |
1201 | #ifdef ISDN_DEBUG_MODEM_VOICE | |
1202 | printk(KERN_DEBUG "fax dle cc/c %d/%d\n", cc, c); | |
1203 | #endif | |
1204 | info->xmit_count += cc; | |
1205 | } else | |
1206 | #endif | |
1207 | info->xmit_count += c; | |
1208 | } else { | |
1209 | info->msr |= UART_MSR_CTS; | |
1210 | info->lsr |= UART_LSR_TEMT; | |
1211 | if (info->dialing) { | |
1212 | info->dialing = 0; | |
1213 | #ifdef ISDN_DEBUG_MODEM_HUP | |
1214 | printk(KERN_DEBUG "Mhup in isdn_tty_write\n"); | |
1215 | #endif | |
1216 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
1217 | isdn_tty_modem_hup(info, 1); | |
1218 | } else | |
1219 | c = isdn_tty_edit_at(buf, c, info); | |
1220 | } | |
1221 | buf += c; | |
1222 | count -= c; | |
1223 | total += c; | |
1224 | } | |
1225 | atomic_dec(&info->xmit_lock); | |
1226 | if ((info->xmit_count) || (skb_queue_len(&info->xmit_queue))) { | |
1227 | if (m->mdmreg[REG_DXMT] & BIT_DXMT) { | |
1228 | isdn_tty_senddown(info); | |
1229 | isdn_tty_tint(info); | |
1230 | } | |
1231 | isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, 1); | |
1232 | } | |
1233 | return total; | |
1234 | } | |
1235 | ||
1236 | static int | |
1237 | isdn_tty_write_room(struct tty_struct *tty) | |
1238 | { | |
1239 | modem_info *info = (modem_info *) tty->driver_data; | |
1240 | int ret; | |
1241 | ||
1242 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_write_room")) | |
1243 | return 0; | |
1244 | if (!info->online) | |
1245 | return info->xmit_size; | |
1246 | ret = info->xmit_size - info->xmit_count; | |
1247 | return (ret < 0) ? 0 : ret; | |
1248 | } | |
1249 | ||
1250 | static int | |
1251 | isdn_tty_chars_in_buffer(struct tty_struct *tty) | |
1252 | { | |
1253 | modem_info *info = (modem_info *) tty->driver_data; | |
1254 | ||
1255 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_chars_in_buffer")) | |
1256 | return 0; | |
1257 | if (!info->online) | |
1258 | return 0; | |
1259 | return (info->xmit_count); | |
1260 | } | |
1261 | ||
1262 | static void | |
1263 | isdn_tty_flush_buffer(struct tty_struct *tty) | |
1264 | { | |
1265 | modem_info *info; | |
1266 | ||
1267 | if (!tty) { | |
1268 | return; | |
1269 | } | |
1270 | info = (modem_info *) tty->driver_data; | |
1271 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_flush_buffer")) { | |
1272 | return; | |
1273 | } | |
1274 | isdn_tty_cleanup_xmit(info); | |
1275 | info->xmit_count = 0; | |
1276 | wake_up_interruptible(&tty->write_wait); | |
1277 | tty_wakeup(tty); | |
1278 | } | |
1279 | ||
1280 | static void | |
1281 | isdn_tty_flush_chars(struct tty_struct *tty) | |
1282 | { | |
1283 | modem_info *info = (modem_info *) tty->driver_data; | |
1284 | ||
1285 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_flush_chars")) | |
1286 | return; | |
1287 | if ((info->xmit_count) || (skb_queue_len(&info->xmit_queue))) | |
1288 | isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, 1); | |
1289 | } | |
1290 | ||
1291 | /* | |
1292 | * ------------------------------------------------------------ | |
1293 | * isdn_tty_throttle() | |
1294 | * | |
1295 | * This routine is called by the upper-layer tty layer to signal that | |
1296 | * incoming characters should be throttled. | |
1297 | * ------------------------------------------------------------ | |
1298 | */ | |
1299 | static void | |
1300 | isdn_tty_throttle(struct tty_struct *tty) | |
1301 | { | |
1302 | modem_info *info = (modem_info *) tty->driver_data; | |
1303 | ||
1304 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_throttle")) | |
1305 | return; | |
1306 | if (I_IXOFF(tty)) | |
1307 | info->x_char = STOP_CHAR(tty); | |
1308 | info->mcr &= ~UART_MCR_RTS; | |
1309 | } | |
1310 | ||
1311 | static void | |
1312 | isdn_tty_unthrottle(struct tty_struct *tty) | |
1313 | { | |
1314 | modem_info *info = (modem_info *) tty->driver_data; | |
1315 | ||
1316 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_unthrottle")) | |
1317 | return; | |
1318 | if (I_IXOFF(tty)) { | |
1319 | if (info->x_char) | |
1320 | info->x_char = 0; | |
1321 | else | |
1322 | info->x_char = START_CHAR(tty); | |
1323 | } | |
1324 | info->mcr |= UART_MCR_RTS; | |
1325 | } | |
1326 | ||
1327 | /* | |
1328 | * ------------------------------------------------------------ | |
1329 | * isdn_tty_ioctl() and friends | |
1330 | * ------------------------------------------------------------ | |
1331 | */ | |
1332 | ||
1333 | /* | |
1334 | * isdn_tty_get_lsr_info - get line status register info | |
1335 | * | |
1336 | * Purpose: Let user call ioctl() to get info when the UART physically | |
1337 | * is emptied. On bus types like RS485, the transmitter must | |
1338 | * release the bus after transmitting. This must be done when | |
1339 | * the transmit shift register is empty, not be done when the | |
1340 | * transmit holding register is empty. This functionality | |
1341 | * allows RS485 driver to be written in user space. | |
1342 | */ | |
1343 | static int | |
1344 | isdn_tty_get_lsr_info(modem_info * info, uint __user * value) | |
1345 | { | |
1346 | u_char status; | |
1347 | uint result; | |
1348 | ||
1349 | status = info->lsr; | |
1350 | result = ((status & UART_LSR_TEMT) ? TIOCSER_TEMT : 0); | |
1351 | return put_user(result, value); | |
1352 | } | |
1353 | ||
1354 | ||
1355 | static int | |
1356 | isdn_tty_tiocmget(struct tty_struct *tty, struct file *file) | |
1357 | { | |
1358 | modem_info *info = (modem_info *) tty->driver_data; | |
1359 | u_char control, status; | |
1360 | ||
1361 | if (isdn_tty_paranoia_check(info, tty->name, __FUNCTION__)) | |
1362 | return -ENODEV; | |
1363 | if (tty->flags & (1 << TTY_IO_ERROR)) | |
1364 | return -EIO; | |
1365 | ||
1366 | #ifdef ISDN_DEBUG_MODEM_IOCTL | |
1367 | printk(KERN_DEBUG "ttyI%d ioctl TIOCMGET\n", info->line); | |
1368 | #endif | |
1369 | ||
1370 | control = info->mcr; | |
1371 | status = info->msr; | |
1372 | return ((control & UART_MCR_RTS) ? TIOCM_RTS : 0) | |
1373 | | ((control & UART_MCR_DTR) ? TIOCM_DTR : 0) | |
1374 | | ((status & UART_MSR_DCD) ? TIOCM_CAR : 0) | |
1375 | | ((status & UART_MSR_RI) ? TIOCM_RNG : 0) | |
1376 | | ((status & UART_MSR_DSR) ? TIOCM_DSR : 0) | |
1377 | | ((status & UART_MSR_CTS) ? TIOCM_CTS : 0); | |
1378 | } | |
1379 | ||
1380 | static int | |
1381 | isdn_tty_tiocmset(struct tty_struct *tty, struct file *file, | |
1382 | unsigned int set, unsigned int clear) | |
1383 | { | |
1384 | modem_info *info = (modem_info *) tty->driver_data; | |
1385 | ||
1386 | if (isdn_tty_paranoia_check(info, tty->name, __FUNCTION__)) | |
1387 | return -ENODEV; | |
1388 | if (tty->flags & (1 << TTY_IO_ERROR)) | |
1389 | return -EIO; | |
1390 | ||
1391 | #ifdef ISDN_DEBUG_MODEM_IOCTL | |
1392 | printk(KERN_DEBUG "ttyI%d ioctl TIOCMxxx: %x %x\n", info->line, set, clear); | |
1393 | #endif | |
1394 | ||
1395 | if (set & TIOCM_RTS) | |
1396 | info->mcr |= UART_MCR_RTS; | |
1397 | if (set & TIOCM_DTR) { | |
1398 | info->mcr |= UART_MCR_DTR; | |
1399 | isdn_tty_modem_ncarrier(info); | |
1400 | } | |
1401 | ||
1402 | if (clear & TIOCM_RTS) | |
1403 | info->mcr &= ~UART_MCR_RTS; | |
1404 | if (clear & TIOCM_DTR) { | |
1405 | info->mcr &= ~UART_MCR_DTR; | |
1406 | if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) { | |
1407 | isdn_tty_modem_reset_regs(info, 0); | |
1408 | #ifdef ISDN_DEBUG_MODEM_HUP | |
1409 | printk(KERN_DEBUG "Mhup in TIOCMSET\n"); | |
1410 | #endif | |
1411 | if (info->online) | |
1412 | info->ncarrier = 1; | |
1413 | isdn_tty_modem_hup(info, 1); | |
1414 | } | |
1415 | } | |
1416 | return 0; | |
1417 | } | |
1418 | ||
1419 | static int | |
1420 | isdn_tty_ioctl(struct tty_struct *tty, struct file *file, | |
1421 | uint cmd, ulong arg) | |
1422 | { | |
1423 | modem_info *info = (modem_info *) tty->driver_data; | |
1424 | int retval; | |
1425 | ||
1426 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_ioctl")) | |
1427 | return -ENODEV; | |
1428 | if (tty->flags & (1 << TTY_IO_ERROR)) | |
1429 | return -EIO; | |
1430 | switch (cmd) { | |
1431 | case TCSBRK: /* SVID version: non-zero arg --> no break */ | |
1432 | #ifdef ISDN_DEBUG_MODEM_IOCTL | |
1433 | printk(KERN_DEBUG "ttyI%d ioctl TCSBRK\n", info->line); | |
1434 | #endif | |
1435 | retval = tty_check_change(tty); | |
1436 | if (retval) | |
1437 | return retval; | |
1438 | tty_wait_until_sent(tty, 0); | |
1439 | return 0; | |
1440 | case TCSBRKP: /* support for POSIX tcsendbreak() */ | |
1441 | #ifdef ISDN_DEBUG_MODEM_IOCTL | |
1442 | printk(KERN_DEBUG "ttyI%d ioctl TCSBRKP\n", info->line); | |
1443 | #endif | |
1444 | retval = tty_check_change(tty); | |
1445 | if (retval) | |
1446 | return retval; | |
1447 | tty_wait_until_sent(tty, 0); | |
1448 | return 0; | |
1449 | case TIOCGSOFTCAR: | |
1450 | #ifdef ISDN_DEBUG_MODEM_IOCTL | |
1451 | printk(KERN_DEBUG "ttyI%d ioctl TIOCGSOFTCAR\n", info->line); | |
1452 | #endif | |
1453 | return put_user(C_CLOCAL(tty) ? 1 : 0, (ulong __user *) arg); | |
1454 | case TIOCSSOFTCAR: | |
1455 | #ifdef ISDN_DEBUG_MODEM_IOCTL | |
1456 | printk(KERN_DEBUG "ttyI%d ioctl TIOCSSOFTCAR\n", info->line); | |
1457 | #endif | |
1458 | if (get_user(arg, (ulong __user *) arg)) | |
1459 | return -EFAULT; | |
1460 | tty->termios->c_cflag = | |
1461 | ((tty->termios->c_cflag & ~CLOCAL) | | |
1462 | (arg ? CLOCAL : 0)); | |
1463 | return 0; | |
1464 | case TIOCSERGETLSR: /* Get line status register */ | |
1465 | #ifdef ISDN_DEBUG_MODEM_IOCTL | |
1466 | printk(KERN_DEBUG "ttyI%d ioctl TIOCSERGETLSR\n", info->line); | |
1467 | #endif | |
1468 | return isdn_tty_get_lsr_info(info, (uint __user *) arg); | |
1469 | default: | |
1470 | #ifdef ISDN_DEBUG_MODEM_IOCTL | |
1471 | printk(KERN_DEBUG "UNKNOWN ioctl 0x%08x on ttyi%d\n", cmd, info->line); | |
1472 | #endif | |
1473 | return -ENOIOCTLCMD; | |
1474 | } | |
1475 | return 0; | |
1476 | } | |
1477 | ||
1478 | static void | |
1479 | isdn_tty_set_termios(struct tty_struct *tty, struct termios *old_termios) | |
1480 | { | |
1481 | modem_info *info = (modem_info *) tty->driver_data; | |
1482 | ||
1483 | if (!old_termios) | |
1484 | isdn_tty_change_speed(info); | |
1485 | else { | |
1486 | if (tty->termios->c_cflag == old_termios->c_cflag) | |
1487 | return; | |
1488 | isdn_tty_change_speed(info); | |
1489 | if ((old_termios->c_cflag & CRTSCTS) && | |
1490 | !(tty->termios->c_cflag & CRTSCTS)) { | |
1491 | tty->hw_stopped = 0; | |
1492 | } | |
1493 | } | |
1494 | } | |
1495 | ||
1496 | /* | |
1497 | * ------------------------------------------------------------ | |
1498 | * isdn_tty_open() and friends | |
1499 | * ------------------------------------------------------------ | |
1500 | */ | |
1501 | static int | |
1502 | isdn_tty_block_til_ready(struct tty_struct *tty, struct file *filp, modem_info * info) | |
1503 | { | |
1504 | DECLARE_WAITQUEUE(wait, NULL); | |
1505 | int do_clocal = 0; | |
1506 | int retval; | |
1507 | ||
1508 | /* | |
1509 | * If the device is in the middle of being closed, then block | |
1510 | * until it's done, and then try again. | |
1511 | */ | |
1512 | if (tty_hung_up_p(filp) || | |
1513 | (info->flags & ISDN_ASYNC_CLOSING)) { | |
1514 | if (info->flags & ISDN_ASYNC_CLOSING) | |
1515 | interruptible_sleep_on(&info->close_wait); | |
1516 | #ifdef MODEM_DO_RESTART | |
1517 | if (info->flags & ISDN_ASYNC_HUP_NOTIFY) | |
1518 | return -EAGAIN; | |
1519 | else | |
1520 | return -ERESTARTSYS; | |
1521 | #else | |
1522 | return -EAGAIN; | |
1523 | #endif | |
1524 | } | |
1525 | /* | |
1526 | * If non-blocking mode is set, then make the check up front | |
1527 | * and then exit. | |
1528 | */ | |
1529 | if ((filp->f_flags & O_NONBLOCK) || | |
1530 | (tty->flags & (1 << TTY_IO_ERROR))) { | |
1531 | if (info->flags & ISDN_ASYNC_CALLOUT_ACTIVE) | |
1532 | return -EBUSY; | |
1533 | info->flags |= ISDN_ASYNC_NORMAL_ACTIVE; | |
1534 | return 0; | |
1535 | } | |
1536 | if (info->flags & ISDN_ASYNC_CALLOUT_ACTIVE) { | |
1537 | if (info->normal_termios.c_cflag & CLOCAL) | |
1538 | do_clocal = 1; | |
1539 | } else { | |
1540 | if (tty->termios->c_cflag & CLOCAL) | |
1541 | do_clocal = 1; | |
1542 | } | |
1543 | /* | |
1544 | * Block waiting for the carrier detect and the line to become | |
1545 | * free (i.e., not in use by the callout). While we are in | |
1546 | * this loop, info->count is dropped by one, so that | |
1547 | * isdn_tty_close() knows when to free things. We restore it upon | |
1548 | * exit, either normal or abnormal. | |
1549 | */ | |
1550 | retval = 0; | |
1551 | add_wait_queue(&info->open_wait, &wait); | |
1552 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1553 | printk(KERN_DEBUG "isdn_tty_block_til_ready before block: ttyi%d, count = %d\n", | |
1554 | info->line, info->count); | |
1555 | #endif | |
1556 | if (!(tty_hung_up_p(filp))) | |
1557 | info->count--; | |
1558 | info->blocked_open++; | |
1559 | while (1) { | |
1560 | set_current_state(TASK_INTERRUPTIBLE); | |
1561 | if (tty_hung_up_p(filp) || | |
1562 | !(info->flags & ISDN_ASYNC_INITIALIZED)) { | |
1563 | #ifdef MODEM_DO_RESTART | |
1564 | if (info->flags & ISDN_ASYNC_HUP_NOTIFY) | |
1565 | retval = -EAGAIN; | |
1566 | else | |
1567 | retval = -ERESTARTSYS; | |
1568 | #else | |
1569 | retval = -EAGAIN; | |
1570 | #endif | |
1571 | break; | |
1572 | } | |
1573 | if (!(info->flags & ISDN_ASYNC_CALLOUT_ACTIVE) && | |
1574 | !(info->flags & ISDN_ASYNC_CLOSING) && | |
1575 | (do_clocal || (info->msr & UART_MSR_DCD))) { | |
1576 | break; | |
1577 | } | |
1578 | if (signal_pending(current)) { | |
1579 | retval = -ERESTARTSYS; | |
1580 | break; | |
1581 | } | |
1582 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1583 | printk(KERN_DEBUG "isdn_tty_block_til_ready blocking: ttyi%d, count = %d\n", | |
1584 | info->line, info->count); | |
1585 | #endif | |
1586 | schedule(); | |
1587 | } | |
1588 | current->state = TASK_RUNNING; | |
1589 | remove_wait_queue(&info->open_wait, &wait); | |
1590 | if (!tty_hung_up_p(filp)) | |
1591 | info->count++; | |
1592 | info->blocked_open--; | |
1593 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1594 | printk(KERN_DEBUG "isdn_tty_block_til_ready after blocking: ttyi%d, count = %d\n", | |
1595 | info->line, info->count); | |
1596 | #endif | |
1597 | if (retval) | |
1598 | return retval; | |
1599 | info->flags |= ISDN_ASYNC_NORMAL_ACTIVE; | |
1600 | return 0; | |
1601 | } | |
1602 | ||
1603 | /* | |
1604 | * This routine is called whenever a serial port is opened. It | |
1605 | * enables interrupts for a serial port, linking in its async structure into | |
1606 | * the IRQ chain. It also performs the serial-specific | |
1607 | * initialization for the tty structure. | |
1608 | */ | |
1609 | static int | |
1610 | isdn_tty_open(struct tty_struct *tty, struct file *filp) | |
1611 | { | |
1612 | modem_info *info; | |
1613 | int retval, line; | |
1614 | ||
1615 | line = tty->index; | |
1616 | if (line < 0 || line > ISDN_MAX_CHANNELS) | |
1617 | return -ENODEV; | |
1618 | info = &dev->mdm.info[line]; | |
1619 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_open")) | |
1620 | return -ENODEV; | |
1621 | if (!try_module_get(info->owner)) { | |
1622 | printk(KERN_WARNING "%s: cannot reserve module\n", __FUNCTION__); | |
1623 | return -ENODEV; | |
1624 | } | |
1625 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1626 | printk(KERN_DEBUG "isdn_tty_open %s, count = %d\n", tty->name, | |
1627 | info->count); | |
1628 | #endif | |
1629 | info->count++; | |
1630 | tty->driver_data = info; | |
1631 | info->tty = tty; | |
1632 | /* | |
1633 | * Start up serial port | |
1634 | */ | |
1635 | retval = isdn_tty_startup(info); | |
1636 | if (retval) { | |
1637 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1638 | printk(KERN_DEBUG "isdn_tty_open return after startup\n"); | |
1639 | #endif | |
1640 | module_put(info->owner); | |
1641 | return retval; | |
1642 | } | |
1643 | retval = isdn_tty_block_til_ready(tty, filp, info); | |
1644 | if (retval) { | |
1645 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1646 | printk(KERN_DEBUG "isdn_tty_open return after isdn_tty_block_til_ready \n"); | |
1647 | #endif | |
1648 | module_put(info->owner); | |
1649 | return retval; | |
1650 | } | |
1651 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1652 | printk(KERN_DEBUG "isdn_tty_open ttyi%d successful...\n", info->line); | |
1653 | #endif | |
1654 | dev->modempoll++; | |
1655 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1656 | printk(KERN_DEBUG "isdn_tty_open normal exit\n"); | |
1657 | #endif | |
1658 | return 0; | |
1659 | } | |
1660 | ||
1661 | static void | |
1662 | isdn_tty_close(struct tty_struct *tty, struct file *filp) | |
1663 | { | |
1664 | modem_info *info = (modem_info *) tty->driver_data; | |
1665 | ulong timeout; | |
1666 | ||
1667 | if (!info || isdn_tty_paranoia_check(info, tty->name, "isdn_tty_close")) | |
1668 | return; | |
1669 | if (tty_hung_up_p(filp)) { | |
1670 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1671 | printk(KERN_DEBUG "isdn_tty_close return after tty_hung_up_p\n"); | |
1672 | #endif | |
1673 | return; | |
1674 | } | |
1675 | if ((tty->count == 1) && (info->count != 1)) { | |
1676 | /* | |
1677 | * Uh, oh. tty->count is 1, which means that the tty | |
1678 | * structure will be freed. Info->count should always | |
1679 | * be one in these conditions. If it's greater than | |
1680 | * one, we've got real problems, since it means the | |
1681 | * serial port won't be shutdown. | |
1682 | */ | |
1683 | printk(KERN_ERR "isdn_tty_close: bad port count; tty->count is 1, " | |
1684 | "info->count is %d\n", info->count); | |
1685 | info->count = 1; | |
1686 | } | |
1687 | if (--info->count < 0) { | |
1688 | printk(KERN_ERR "isdn_tty_close: bad port count for ttyi%d: %d\n", | |
1689 | info->line, info->count); | |
1690 | info->count = 0; | |
1691 | } | |
1692 | if (info->count) { | |
1693 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1694 | printk(KERN_DEBUG "isdn_tty_close after info->count != 0\n"); | |
1695 | #endif | |
1696 | return; | |
1697 | } | |
1698 | info->flags |= ISDN_ASYNC_CLOSING; | |
1699 | /* | |
1700 | * Save the termios structure, since this port may have | |
1701 | * separate termios for callout and dialin. | |
1702 | */ | |
1703 | if (info->flags & ISDN_ASYNC_NORMAL_ACTIVE) | |
1704 | info->normal_termios = *tty->termios; | |
1705 | if (info->flags & ISDN_ASYNC_CALLOUT_ACTIVE) | |
1706 | info->callout_termios = *tty->termios; | |
1707 | ||
1708 | tty->closing = 1; | |
1709 | /* | |
1710 | * At this point we stop accepting input. To do this, we | |
1711 | * disable the receive line status interrupts, and tell the | |
1712 | * interrupt driver to stop checking the data ready bit in the | |
1713 | * line status register. | |
1714 | */ | |
1715 | if (info->flags & ISDN_ASYNC_INITIALIZED) { | |
1716 | tty_wait_until_sent(tty, 3000); /* 30 seconds timeout */ | |
1717 | /* | |
1718 | * Before we drop DTR, make sure the UART transmitter | |
1719 | * has completely drained; this is especially | |
1720 | * important if there is a transmit FIFO! | |
1721 | */ | |
1722 | timeout = jiffies + HZ; | |
1723 | while (!(info->lsr & UART_LSR_TEMT)) { | |
1724 | set_current_state(TASK_INTERRUPTIBLE); | |
1725 | schedule_timeout(20); | |
1726 | if (time_after(jiffies,timeout)) | |
1727 | break; | |
1728 | } | |
1729 | } | |
1730 | dev->modempoll--; | |
1731 | isdn_tty_shutdown(info); | |
1732 | ||
1733 | if (tty->driver->flush_buffer) | |
1734 | tty->driver->flush_buffer(tty); | |
1735 | tty_ldisc_flush(tty); | |
1736 | info->tty = NULL; | |
1737 | info->ncarrier = 0; | |
1738 | tty->closing = 0; | |
1739 | module_put(info->owner); | |
1740 | if (info->blocked_open) { | |
1741 | msleep_interruptible(500); | |
1742 | wake_up_interruptible(&info->open_wait); | |
1743 | } | |
1744 | info->flags &= ~(ISDN_ASYNC_NORMAL_ACTIVE | ISDN_ASYNC_CLOSING); | |
1745 | wake_up_interruptible(&info->close_wait); | |
1746 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1747 | printk(KERN_DEBUG "isdn_tty_close normal exit\n"); | |
1748 | #endif | |
1749 | } | |
1750 | ||
1751 | /* | |
1752 | * isdn_tty_hangup() --- called by tty_hangup() when a hangup is signaled. | |
1753 | */ | |
1754 | static void | |
1755 | isdn_tty_hangup(struct tty_struct *tty) | |
1756 | { | |
1757 | modem_info *info = (modem_info *) tty->driver_data; | |
1758 | ||
1759 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_hangup")) | |
1760 | return; | |
1761 | isdn_tty_shutdown(info); | |
1762 | info->count = 0; | |
1763 | info->flags &= ~(ISDN_ASYNC_NORMAL_ACTIVE | ISDN_ASYNC_CALLOUT_ACTIVE); | |
1764 | info->tty = NULL; | |
1765 | wake_up_interruptible(&info->open_wait); | |
1766 | } | |
1767 | ||
1768 | /* This routine initializes all emulator-data. | |
1769 | */ | |
1770 | static void | |
1771 | isdn_tty_reset_profile(atemu * m) | |
1772 | { | |
1773 | m->profile[0] = 0; | |
1774 | m->profile[1] = 0; | |
1775 | m->profile[2] = 43; | |
1776 | m->profile[3] = 13; | |
1777 | m->profile[4] = 10; | |
1778 | m->profile[5] = 8; | |
1779 | m->profile[6] = 3; | |
1780 | m->profile[7] = 60; | |
1781 | m->profile[8] = 2; | |
1782 | m->profile[9] = 6; | |
1783 | m->profile[10] = 7; | |
1784 | m->profile[11] = 70; | |
1785 | m->profile[12] = 0x45; | |
1786 | m->profile[13] = 4; | |
1787 | m->profile[14] = ISDN_PROTO_L2_X75I; | |
1788 | m->profile[15] = ISDN_PROTO_L3_TRANS; | |
1789 | m->profile[16] = ISDN_SERIAL_XMIT_SIZE / 16; | |
1790 | m->profile[17] = ISDN_MODEM_WINSIZE; | |
1791 | m->profile[18] = 4; | |
1792 | m->profile[19] = 0; | |
1793 | m->profile[20] = 0; | |
1794 | m->profile[23] = 0; | |
1795 | m->pmsn[0] = '\0'; | |
1796 | m->plmsn[0] = '\0'; | |
1797 | } | |
1798 | ||
1799 | #ifdef CONFIG_ISDN_AUDIO | |
1800 | static void | |
1801 | isdn_tty_modem_reset_vpar(atemu * m) | |
1802 | { | |
1803 | m->vpar[0] = 2; /* Voice-device (2 = phone line) */ | |
1804 | m->vpar[1] = 0; /* Silence detection level (0 = none ) */ | |
1805 | m->vpar[2] = 70; /* Silence interval (7 sec. ) */ | |
1806 | m->vpar[3] = 2; /* Compression type (1 = ADPCM-2 ) */ | |
1807 | m->vpar[4] = 0; /* DTMF detection level (0 = softcode ) */ | |
1808 | m->vpar[5] = 8; /* DTMF interval (8 * 5 ms. ) */ | |
1809 | } | |
1810 | #endif | |
1811 | ||
1812 | #ifdef CONFIG_ISDN_TTY_FAX | |
1813 | static void | |
1814 | isdn_tty_modem_reset_faxpar(modem_info * info) | |
1815 | { | |
1816 | T30_s *f = info->fax; | |
1817 | ||
1818 | f->code = 0; | |
1819 | f->phase = ISDN_FAX_PHASE_IDLE; | |
1820 | f->direction = 0; | |
1821 | f->resolution = 1; /* fine */ | |
1822 | f->rate = 5; /* 14400 bit/s */ | |
1823 | f->width = 0; | |
1824 | f->length = 0; | |
1825 | f->compression = 0; | |
1826 | f->ecm = 0; | |
1827 | f->binary = 0; | |
1828 | f->scantime = 0; | |
1829 | memset(&f->id[0], 32, FAXIDLEN - 1); | |
1830 | f->id[FAXIDLEN - 1] = 0; | |
1831 | f->badlin = 0; | |
1832 | f->badmul = 0; | |
1833 | f->bor = 0; | |
1834 | f->nbc = 0; | |
1835 | f->cq = 0; | |
1836 | f->cr = 0; | |
1837 | f->ctcrty = 0; | |
1838 | f->minsp = 0; | |
1839 | f->phcto = 30; | |
1840 | f->rel = 0; | |
1841 | memset(&f->pollid[0], 32, FAXIDLEN - 1); | |
1842 | f->pollid[FAXIDLEN - 1] = 0; | |
1843 | } | |
1844 | #endif | |
1845 | ||
1846 | static void | |
1847 | isdn_tty_modem_reset_regs(modem_info * info, int force) | |
1848 | { | |
1849 | atemu *m = &info->emu; | |
1850 | if ((m->mdmreg[REG_DTRR] & BIT_DTRR) || force) { | |
1851 | memcpy(m->mdmreg, m->profile, ISDN_MODEM_NUMREG); | |
1852 | memcpy(m->msn, m->pmsn, ISDN_MSNLEN); | |
1853 | memcpy(m->lmsn, m->plmsn, ISDN_LMSNLEN); | |
1854 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16; | |
1855 | } | |
1856 | #ifdef CONFIG_ISDN_AUDIO | |
1857 | isdn_tty_modem_reset_vpar(m); | |
1858 | #endif | |
1859 | #ifdef CONFIG_ISDN_TTY_FAX | |
1860 | isdn_tty_modem_reset_faxpar(info); | |
1861 | #endif | |
1862 | m->mdmcmdl = 0; | |
1863 | } | |
1864 | ||
1865 | static void | |
1866 | modem_write_profile(atemu * m) | |
1867 | { | |
1868 | memcpy(m->profile, m->mdmreg, ISDN_MODEM_NUMREG); | |
1869 | memcpy(m->pmsn, m->msn, ISDN_MSNLEN); | |
1870 | memcpy(m->plmsn, m->lmsn, ISDN_LMSNLEN); | |
1871 | if (dev->profd) | |
1872 | send_sig(SIGIO, dev->profd, 1); | |
1873 | } | |
1874 | ||
1875 | static struct tty_operations modem_ops = { | |
1876 | .open = isdn_tty_open, | |
1877 | .close = isdn_tty_close, | |
1878 | .write = isdn_tty_write, | |
1879 | .flush_chars = isdn_tty_flush_chars, | |
1880 | .write_room = isdn_tty_write_room, | |
1881 | .chars_in_buffer = isdn_tty_chars_in_buffer, | |
1882 | .flush_buffer = isdn_tty_flush_buffer, | |
1883 | .ioctl = isdn_tty_ioctl, | |
1884 | .throttle = isdn_tty_throttle, | |
1885 | .unthrottle = isdn_tty_unthrottle, | |
1886 | .set_termios = isdn_tty_set_termios, | |
1887 | .hangup = isdn_tty_hangup, | |
1888 | .tiocmget = isdn_tty_tiocmget, | |
1889 | .tiocmset = isdn_tty_tiocmset, | |
1890 | }; | |
1891 | ||
1892 | int | |
1893 | isdn_tty_modem_init(void) | |
1894 | { | |
1895 | isdn_modem_t *m; | |
1896 | int i, retval; | |
1897 | modem_info *info; | |
1898 | ||
1899 | m = &dev->mdm; | |
1900 | m->tty_modem = alloc_tty_driver(ISDN_MAX_CHANNELS); | |
1901 | if (!m->tty_modem) | |
1902 | return -ENOMEM; | |
1903 | m->tty_modem->name = "ttyI"; | |
1904 | m->tty_modem->devfs_name = "isdn/ttyI"; | |
1905 | m->tty_modem->major = ISDN_TTY_MAJOR; | |
1906 | m->tty_modem->minor_start = 0; | |
1907 | m->tty_modem->type = TTY_DRIVER_TYPE_SERIAL; | |
1908 | m->tty_modem->subtype = SERIAL_TYPE_NORMAL; | |
1909 | m->tty_modem->init_termios = tty_std_termios; | |
1910 | m->tty_modem->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; | |
1911 | m->tty_modem->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS; | |
1912 | m->tty_modem->driver_name = "isdn_tty"; | |
1913 | tty_set_operations(m->tty_modem, &modem_ops); | |
1914 | retval = tty_register_driver(m->tty_modem); | |
1915 | if (retval) { | |
1916 | printk(KERN_WARNING "isdn_tty: Couldn't register modem-device\n"); | |
1917 | goto err; | |
1918 | } | |
1919 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
1920 | info = &m->info[i]; | |
1921 | #ifdef CONFIG_ISDN_TTY_FAX | |
1922 | if (!(info->fax = kmalloc(sizeof(T30_s), GFP_KERNEL))) { | |
1923 | printk(KERN_ERR "Could not allocate fax t30-buffer\n"); | |
1924 | retval = -ENOMEM; | |
1925 | goto err_unregister; | |
1926 | } | |
1927 | #endif | |
1928 | #ifdef MODULE | |
1929 | info->owner = THIS_MODULE; | |
1930 | #endif | |
1931 | spin_lock_init(&info->readlock); | |
1932 | init_MUTEX(&info->write_sem); | |
1933 | sprintf(info->last_cause, "0000"); | |
1934 | sprintf(info->last_num, "none"); | |
1935 | info->last_dir = 0; | |
1936 | info->last_lhup = 1; | |
1937 | info->last_l2 = -1; | |
1938 | info->last_si = 0; | |
1939 | isdn_tty_reset_profile(&info->emu); | |
1940 | isdn_tty_modem_reset_regs(info, 1); | |
1941 | info->magic = ISDN_ASYNC_MAGIC; | |
1942 | info->line = i; | |
1943 | info->tty = NULL; | |
1944 | info->x_char = 0; | |
1945 | info->count = 0; | |
1946 | info->blocked_open = 0; | |
1947 | init_waitqueue_head(&info->open_wait); | |
1948 | init_waitqueue_head(&info->close_wait); | |
1949 | info->isdn_driver = -1; | |
1950 | info->isdn_channel = -1; | |
1951 | info->drv_index = -1; | |
1952 | info->xmit_size = ISDN_SERIAL_XMIT_SIZE; | |
1953 | init_timer(&info->nc_timer); | |
1954 | info->nc_timer.function = isdn_tty_modem_do_ncarrier; | |
1955 | info->nc_timer.data = (unsigned long) info; | |
1956 | skb_queue_head_init(&info->xmit_queue); | |
1957 | #ifdef CONFIG_ISDN_AUDIO | |
1958 | skb_queue_head_init(&info->dtmf_queue); | |
1959 | #endif | |
1960 | if (!(info->xmit_buf = kmalloc(ISDN_SERIAL_XMIT_MAX + 5, GFP_KERNEL))) { | |
1961 | printk(KERN_ERR "Could not allocate modem xmit-buffer\n"); | |
1962 | retval = -ENOMEM; | |
1963 | goto err_unregister; | |
1964 | } | |
1965 | /* Make room for T.70 header */ | |
1966 | info->xmit_buf += 4; | |
1967 | } | |
1968 | return 0; | |
1969 | err_unregister: | |
1970 | for (i--; i >= 0; i--) { | |
1971 | info = &m->info[i]; | |
1972 | #ifdef CONFIG_ISDN_TTY_FAX | |
1973 | kfree(info->fax); | |
1974 | #endif | |
1975 | kfree(info->xmit_buf - 4); | |
1976 | } | |
1977 | tty_unregister_driver(m->tty_modem); | |
1978 | err: | |
1979 | put_tty_driver(m->tty_modem); | |
1980 | m->tty_modem = NULL; | |
1981 | return retval; | |
1982 | } | |
1983 | ||
1984 | void | |
1985 | isdn_tty_exit(void) | |
1986 | { | |
1987 | modem_info *info; | |
1988 | int i; | |
1989 | ||
1990 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
1991 | info = &dev->mdm.info[i]; | |
1992 | isdn_tty_cleanup_xmit(info); | |
1993 | #ifdef CONFIG_ISDN_TTY_FAX | |
1994 | kfree(info->fax); | |
1995 | #endif | |
1996 | kfree(info->xmit_buf - 4); | |
1997 | } | |
1998 | tty_unregister_driver(dev->mdm.tty_modem); | |
1999 | put_tty_driver(dev->mdm.tty_modem); | |
2000 | dev->mdm.tty_modem = NULL; | |
2001 | } | |
2002 | ||
2003 | ||
2004 | /* | |
2005 | * isdn_tty_match_icall(char *MSN, atemu *tty_emulator, int dev_idx) | |
2006 | * match the MSN against the MSNs (glob patterns) defined for tty_emulator, | |
2007 | * and return 0 for match, 1 for no match, 2 if MSN could match if longer. | |
2008 | */ | |
2009 | ||
2010 | static int | |
2011 | isdn_tty_match_icall(char *cid, atemu *emu, int di) | |
2012 | { | |
2013 | #ifdef ISDN_DEBUG_MODEM_ICALL | |
2014 | printk(KERN_DEBUG "m_fi: msn=%s lmsn=%s mmsn=%s mreg[SI1]=%d mreg[SI2]=%d\n", | |
2015 | emu->msn, emu->lmsn, isdn_map_eaz2msn(emu->msn, di), | |
2016 | emu->mdmreg[REG_SI1], emu->mdmreg[REG_SI2]); | |
2017 | #endif | |
2018 | if (strlen(emu->lmsn)) { | |
2019 | char *p = emu->lmsn; | |
2020 | char *q; | |
2021 | int tmp; | |
2022 | int ret = 0; | |
2023 | ||
2024 | while (1) { | |
2025 | if ((q = strchr(p, ';'))) | |
2026 | *q = '\0'; | |
2027 | if ((tmp = isdn_msncmp(cid, isdn_map_eaz2msn(p, di))) > ret) | |
2028 | ret = tmp; | |
2029 | #ifdef ISDN_DEBUG_MODEM_ICALL | |
2030 | printk(KERN_DEBUG "m_fi: lmsnX=%s mmsn=%s -> tmp=%d\n", | |
2031 | p, isdn_map_eaz2msn(emu->msn, di), tmp); | |
2032 | #endif | |
2033 | if (q) { | |
2034 | *q = ';'; | |
2035 | p = q; | |
2036 | p++; | |
2037 | } | |
2038 | if (!tmp) | |
2039 | return 0; | |
2040 | if (!q) | |
2041 | break; | |
2042 | } | |
2043 | return ret; | |
2044 | } else { | |
2045 | int tmp; | |
2046 | tmp = isdn_msncmp(cid, isdn_map_eaz2msn(emu->msn, di)); | |
2047 | #ifdef ISDN_DEBUG_MODEM_ICALL | |
2048 | printk(KERN_DEBUG "m_fi: mmsn=%s -> tmp=%d\n", | |
2049 | isdn_map_eaz2msn(emu->msn, di), tmp); | |
2050 | #endif | |
2051 | return tmp; | |
2052 | } | |
2053 | } | |
2054 | ||
2055 | /* | |
2056 | * An incoming call-request has arrived. | |
2057 | * Search the tty-devices for an appropriate device and bind | |
2058 | * it to the ISDN-Channel. | |
2059 | * Return: | |
2060 | * | |
2061 | * 0 = No matching device found. | |
2062 | * 1 = A matching device found. | |
2063 | * 3 = No match found, but eventually would match, if | |
2064 | * CID is longer. | |
2065 | */ | |
2066 | int | |
2067 | isdn_tty_find_icall(int di, int ch, setup_parm *setup) | |
2068 | { | |
2069 | char *eaz; | |
2070 | int i; | |
2071 | int wret; | |
2072 | int idx; | |
2073 | int si1; | |
2074 | int si2; | |
2075 | char *nr; | |
2076 | ulong flags; | |
2077 | ||
2078 | if (!setup->phone[0]) { | |
2079 | nr = "0"; | |
2080 | printk(KERN_INFO "isdn_tty: Incoming call without OAD, assuming '0'\n"); | |
2081 | } else | |
2082 | nr = setup->phone; | |
2083 | si1 = (int) setup->si1; | |
2084 | si2 = (int) setup->si2; | |
2085 | if (!setup->eazmsn[0]) { | |
2086 | printk(KERN_WARNING "isdn_tty: Incoming call without CPN, assuming '0'\n"); | |
2087 | eaz = "0"; | |
2088 | } else | |
2089 | eaz = setup->eazmsn; | |
2090 | #ifdef ISDN_DEBUG_MODEM_ICALL | |
2091 | printk(KERN_DEBUG "m_fi: eaz=%s si1=%d si2=%d\n", eaz, si1, si2); | |
2092 | #endif | |
2093 | wret = 0; | |
2094 | spin_lock_irqsave(&dev->lock, flags); | |
2095 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
2096 | modem_info *info = &dev->mdm.info[i]; | |
2097 | ||
2098 | if (info->count == 0) | |
2099 | continue; | |
2100 | if ((info->emu.mdmreg[REG_SI1] & si2bit[si1]) && /* SI1 is matching */ | |
2101 | (info->emu.mdmreg[REG_SI2] == si2)) { /* SI2 is matching */ | |
2102 | idx = isdn_dc2minor(di, ch); | |
2103 | #ifdef ISDN_DEBUG_MODEM_ICALL | |
2104 | printk(KERN_DEBUG "m_fi: match1 wret=%d\n", wret); | |
2105 | printk(KERN_DEBUG "m_fi: idx=%d flags=%08lx drv=%d ch=%d usg=%d\n", idx, | |
2106 | info->flags, info->isdn_driver, info->isdn_channel, | |
2107 | dev->usage[idx]); | |
2108 | #endif | |
2109 | if ( | |
2110 | #ifndef FIX_FILE_TRANSFER | |
2111 | (info->flags & ISDN_ASYNC_NORMAL_ACTIVE) && | |
2112 | #endif | |
2113 | (info->isdn_driver == -1) && | |
2114 | (info->isdn_channel == -1) && | |
2115 | (USG_NONE(dev->usage[idx]))) { | |
2116 | int matchret; | |
2117 | ||
2118 | if ((matchret = isdn_tty_match_icall(eaz, &info->emu, di)) > wret) | |
2119 | wret = matchret; | |
2120 | if (!matchret) { /* EAZ is matching */ | |
2121 | info->isdn_driver = di; | |
2122 | info->isdn_channel = ch; | |
2123 | info->drv_index = idx; | |
2124 | dev->m_idx[idx] = info->line; | |
2125 | dev->usage[idx] &= ISDN_USAGE_EXCLUSIVE; | |
2126 | dev->usage[idx] |= isdn_calc_usage(si1, info->emu.mdmreg[REG_L2PROT]); | |
2127 | strcpy(dev->num[idx], nr); | |
2128 | strcpy(info->emu.cpn, eaz); | |
2129 | info->emu.mdmreg[REG_SI1I] = si2bit[si1]; | |
2130 | info->emu.mdmreg[REG_PLAN] = setup->plan; | |
2131 | info->emu.mdmreg[REG_SCREEN] = setup->screen; | |
2132 | isdn_info_update(); | |
2133 | spin_unlock_irqrestore(&dev->lock, flags); | |
2134 | printk(KERN_INFO "isdn_tty: call from %s, -> RING on ttyI%d\n", nr, | |
2135 | info->line); | |
2136 | info->msr |= UART_MSR_RI; | |
2137 | isdn_tty_modem_result(RESULT_RING, info); | |
2138 | isdn_timer_ctrl(ISDN_TIMER_MODEMRING, 1); | |
2139 | return 1; | |
2140 | } | |
2141 | } | |
2142 | } | |
2143 | } | |
2144 | spin_unlock_irqrestore(&dev->lock, flags); | |
2145 | printk(KERN_INFO "isdn_tty: call from %s -> %s %s\n", nr, eaz, | |
2146 | ((dev->drv[di]->flags & DRV_FLAG_REJBUS) && (wret != 2))? "rejected" : "ignored"); | |
2147 | return (wret == 2)?3:0; | |
2148 | } | |
2149 | ||
2150 | #define TTY_IS_ACTIVE(info) \ | |
2151 | (info->flags & (ISDN_ASYNC_NORMAL_ACTIVE | ISDN_ASYNC_CALLOUT_ACTIVE)) | |
2152 | ||
2153 | int | |
2154 | isdn_tty_stat_callback(int i, isdn_ctrl *c) | |
2155 | { | |
2156 | int mi; | |
2157 | modem_info *info; | |
2158 | char *e; | |
2159 | ||
2160 | if (i < 0) | |
2161 | return 0; | |
2162 | if ((mi = dev->m_idx[i]) >= 0) { | |
2163 | info = &dev->mdm.info[mi]; | |
2164 | switch (c->command) { | |
2165 | case ISDN_STAT_CINF: | |
2166 | printk(KERN_DEBUG "CHARGEINFO on ttyI%d: %ld %s\n", info->line, c->arg, c->parm.num); | |
2167 | info->emu.charge = (unsigned) simple_strtoul(c->parm.num, &e, 10); | |
2168 | if (e == (char *)c->parm.num) | |
2169 | info->emu.charge = 0; | |
2170 | ||
2171 | break; | |
2172 | case ISDN_STAT_BSENT: | |
2173 | #ifdef ISDN_TTY_STAT_DEBUG | |
2174 | printk(KERN_DEBUG "tty_STAT_BSENT ttyI%d\n", info->line); | |
2175 | #endif | |
2176 | if ((info->isdn_driver == c->driver) && | |
2177 | (info->isdn_channel == c->arg)) { | |
2178 | info->msr |= UART_MSR_CTS; | |
2179 | if (info->send_outstanding) | |
2180 | if (!(--info->send_outstanding)) | |
2181 | info->lsr |= UART_LSR_TEMT; | |
2182 | isdn_tty_tint(info); | |
2183 | return 1; | |
2184 | } | |
2185 | break; | |
2186 | case ISDN_STAT_CAUSE: | |
2187 | #ifdef ISDN_TTY_STAT_DEBUG | |
2188 | printk(KERN_DEBUG "tty_STAT_CAUSE ttyI%d\n", info->line); | |
2189 | #endif | |
2190 | /* Signal cause to tty-device */ | |
2191 | strncpy(info->last_cause, c->parm.num, 5); | |
2192 | return 1; | |
2193 | case ISDN_STAT_DISPLAY: | |
2194 | #ifdef ISDN_TTY_STAT_DEBUG | |
2195 | printk(KERN_DEBUG "tty_STAT_DISPLAY ttyI%d\n", info->line); | |
2196 | #endif | |
2197 | /* Signal display to tty-device */ | |
2198 | if ((info->emu.mdmreg[REG_DISPLAY] & BIT_DISPLAY) && | |
2199 | !(info->emu.mdmreg[REG_RESPNUM] & BIT_RESPNUM)) { | |
2200 | isdn_tty_at_cout("\r\n", info); | |
2201 | isdn_tty_at_cout("DISPLAY: ", info); | |
2202 | isdn_tty_at_cout(c->parm.display, info); | |
2203 | isdn_tty_at_cout("\r\n", info); | |
2204 | } | |
2205 | return 1; | |
2206 | case ISDN_STAT_DCONN: | |
2207 | #ifdef ISDN_TTY_STAT_DEBUG | |
2208 | printk(KERN_DEBUG "tty_STAT_DCONN ttyI%d\n", info->line); | |
2209 | #endif | |
2210 | if (TTY_IS_ACTIVE(info)) { | |
2211 | if (info->dialing == 1) { | |
2212 | info->dialing = 2; | |
2213 | return 1; | |
2214 | } | |
2215 | } | |
2216 | break; | |
2217 | case ISDN_STAT_DHUP: | |
2218 | #ifdef ISDN_TTY_STAT_DEBUG | |
2219 | printk(KERN_DEBUG "tty_STAT_DHUP ttyI%d\n", info->line); | |
2220 | #endif | |
2221 | if (TTY_IS_ACTIVE(info)) { | |
2222 | if (info->dialing == 1) | |
2223 | isdn_tty_modem_result(RESULT_BUSY, info); | |
2224 | if (info->dialing > 1) | |
2225 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
2226 | info->dialing = 0; | |
2227 | #ifdef ISDN_DEBUG_MODEM_HUP | |
2228 | printk(KERN_DEBUG "Mhup in ISDN_STAT_DHUP\n"); | |
2229 | #endif | |
2230 | isdn_tty_modem_hup(info, 0); | |
2231 | return 1; | |
2232 | } | |
2233 | break; | |
2234 | case ISDN_STAT_BCONN: | |
2235 | #ifdef ISDN_TTY_STAT_DEBUG | |
2236 | printk(KERN_DEBUG "tty_STAT_BCONN ttyI%d\n", info->line); | |
2237 | #endif | |
2238 | /* Wake up any processes waiting | |
2239 | * for incoming call of this device when | |
2240 | * DCD follow the state of incoming carrier | |
2241 | */ | |
2242 | if (info->blocked_open && | |
2243 | (info->emu.mdmreg[REG_DCD] & BIT_DCD)) { | |
2244 | wake_up_interruptible(&info->open_wait); | |
2245 | } | |
2246 | ||
2247 | /* Schedule CONNECT-Message to any tty | |
2248 | * waiting for it and | |
2249 | * set DCD-bit of its modem-status. | |
2250 | */ | |
2251 | if (TTY_IS_ACTIVE(info) || | |
2252 | (info->blocked_open && (info->emu.mdmreg[REG_DCD] & BIT_DCD))) { | |
2253 | info->msr |= UART_MSR_DCD; | |
2254 | info->emu.charge = 0; | |
2255 | if (info->dialing & 0xf) | |
2256 | info->last_dir = 1; | |
2257 | else | |
2258 | info->last_dir = 0; | |
2259 | info->dialing = 0; | |
2260 | info->rcvsched = 1; | |
2261 | if (USG_MODEM(dev->usage[i])) { | |
2262 | if (info->emu.mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM) { | |
2263 | strcpy(info->emu.connmsg, c->parm.num); | |
2264 | isdn_tty_modem_result(RESULT_CONNECT, info); | |
2265 | } else | |
2266 | isdn_tty_modem_result(RESULT_CONNECT64000, info); | |
2267 | } | |
2268 | if (USG_VOICE(dev->usage[i])) | |
2269 | isdn_tty_modem_result(RESULT_VCON, info); | |
2270 | return 1; | |
2271 | } | |
2272 | break; | |
2273 | case ISDN_STAT_BHUP: | |
2274 | #ifdef ISDN_TTY_STAT_DEBUG | |
2275 | printk(KERN_DEBUG "tty_STAT_BHUP ttyI%d\n", info->line); | |
2276 | #endif | |
2277 | if (TTY_IS_ACTIVE(info)) { | |
2278 | #ifdef ISDN_DEBUG_MODEM_HUP | |
2279 | printk(KERN_DEBUG "Mhup in ISDN_STAT_BHUP\n"); | |
2280 | #endif | |
2281 | isdn_tty_modem_hup(info, 0); | |
2282 | return 1; | |
2283 | } | |
2284 | break; | |
2285 | case ISDN_STAT_NODCH: | |
2286 | #ifdef ISDN_TTY_STAT_DEBUG | |
2287 | printk(KERN_DEBUG "tty_STAT_NODCH ttyI%d\n", info->line); | |
2288 | #endif | |
2289 | if (TTY_IS_ACTIVE(info)) { | |
2290 | if (info->dialing) { | |
2291 | info->dialing = 0; | |
2292 | info->last_l2 = -1; | |
2293 | info->last_si = 0; | |
2294 | sprintf(info->last_cause, "0000"); | |
2295 | isdn_tty_modem_result(RESULT_NO_DIALTONE, info); | |
2296 | } | |
2297 | isdn_tty_modem_hup(info, 0); | |
2298 | return 1; | |
2299 | } | |
2300 | break; | |
2301 | case ISDN_STAT_UNLOAD: | |
2302 | #ifdef ISDN_TTY_STAT_DEBUG | |
2303 | printk(KERN_DEBUG "tty_STAT_UNLOAD ttyI%d\n", info->line); | |
2304 | #endif | |
2305 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
2306 | info = &dev->mdm.info[i]; | |
2307 | if (info->isdn_driver == c->driver) { | |
2308 | if (info->online) | |
2309 | isdn_tty_modem_hup(info, 1); | |
2310 | } | |
2311 | } | |
2312 | return 1; | |
2313 | #ifdef CONFIG_ISDN_TTY_FAX | |
2314 | case ISDN_STAT_FAXIND: | |
2315 | if (TTY_IS_ACTIVE(info)) { | |
2316 | isdn_tty_fax_command(info, c); | |
2317 | } | |
2318 | break; | |
2319 | #endif | |
2320 | #ifdef CONFIG_ISDN_AUDIO | |
2321 | case ISDN_STAT_AUDIO: | |
2322 | if (TTY_IS_ACTIVE(info)) { | |
2323 | switch(c->parm.num[0]) { | |
2324 | case ISDN_AUDIO_DTMF: | |
2325 | if (info->vonline) { | |
2326 | isdn_audio_put_dle_code(info, | |
2327 | c->parm.num[1]); | |
2328 | } | |
2329 | break; | |
2330 | } | |
2331 | } | |
2332 | break; | |
2333 | #endif | |
2334 | } | |
2335 | } | |
2336 | return 0; | |
2337 | } | |
2338 | ||
2339 | /********************************************************************* | |
2340 | Modem-Emulator-Routines | |
2341 | *********************************************************************/ | |
2342 | ||
2343 | #define cmdchar(c) ((c>=' ')&&(c<=0x7f)) | |
2344 | ||
2345 | /* | |
2346 | * Put a message from the AT-emulator into receive-buffer of tty, | |
2347 | * convert CR, LF, and BS to values in modem-registers 3, 4 and 5. | |
2348 | */ | |
2349 | void | |
2350 | isdn_tty_at_cout(char *msg, modem_info * info) | |
2351 | { | |
2352 | struct tty_struct *tty; | |
2353 | atemu *m = &info->emu; | |
2354 | char *p; | |
2355 | char c; | |
2356 | u_long flags; | |
2357 | struct sk_buff *skb = NULL; | |
2358 | char *sp = NULL; | |
2359 | ||
2360 | if (!msg) { | |
2361 | printk(KERN_WARNING "isdn_tty: Null-Message in isdn_tty_at_cout\n"); | |
2362 | return; | |
2363 | } | |
2364 | spin_lock_irqsave(&info->readlock, flags); | |
2365 | tty = info->tty; | |
2366 | if ((info->flags & ISDN_ASYNC_CLOSING) || (!tty)) { | |
2367 | spin_unlock_irqrestore(&info->readlock, flags); | |
2368 | return; | |
2369 | } | |
2370 | ||
2371 | /* use queue instead of direct flip, if online and */ | |
2372 | /* data is in queue or flip buffer is full */ | |
2373 | if ((info->online) && (((tty->flip.count + strlen(msg)) >= TTY_FLIPBUF_SIZE) || | |
2374 | (!skb_queue_empty(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel])))) { | |
2375 | skb = alloc_skb(strlen(msg), GFP_ATOMIC); | |
2376 | if (!skb) { | |
2377 | spin_unlock_irqrestore(&info->readlock, flags); | |
2378 | return; | |
2379 | } | |
2380 | sp = skb_put(skb, strlen(msg)); | |
2381 | #ifdef CONFIG_ISDN_AUDIO | |
2382 | ISDN_AUDIO_SKB_DLECOUNT(skb) = 0; | |
2383 | ISDN_AUDIO_SKB_LOCK(skb) = 0; | |
2384 | #endif | |
2385 | } | |
2386 | ||
2387 | for (p = msg; *p; p++) { | |
2388 | switch (*p) { | |
2389 | case '\r': | |
2390 | c = m->mdmreg[REG_CR]; | |
2391 | break; | |
2392 | case '\n': | |
2393 | c = m->mdmreg[REG_LF]; | |
2394 | break; | |
2395 | case '\b': | |
2396 | c = m->mdmreg[REG_BS]; | |
2397 | break; | |
2398 | default: | |
2399 | c = *p; | |
2400 | } | |
2401 | if (skb) { | |
2402 | *sp++ = c; | |
2403 | } else { | |
2404 | if (tty->flip.count >= TTY_FLIPBUF_SIZE) | |
2405 | break; | |
2406 | tty_insert_flip_char(tty, c, 0); | |
2407 | } | |
2408 | } | |
2409 | if (skb) { | |
2410 | __skb_queue_tail(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel], skb); | |
2411 | dev->drv[info->isdn_driver]->rcvcount[info->isdn_channel] += skb->len; | |
2412 | spin_unlock_irqrestore(&info->readlock, flags); | |
2413 | /* Schedule dequeuing */ | |
2414 | if ((dev->modempoll) && (info->rcvsched)) | |
2415 | isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1); | |
2416 | ||
2417 | } else { | |
2418 | spin_unlock_irqrestore(&info->readlock, flags); | |
2419 | schedule_delayed_work(&tty->flip.work, 1); | |
2420 | } | |
2421 | } | |
2422 | ||
2423 | /* | |
2424 | * Perform ATH Hangup | |
2425 | */ | |
2426 | static void | |
2427 | isdn_tty_on_hook(modem_info * info) | |
2428 | { | |
2429 | if (info->isdn_channel >= 0) { | |
2430 | #ifdef ISDN_DEBUG_MODEM_HUP | |
2431 | printk(KERN_DEBUG "Mhup in isdn_tty_on_hook\n"); | |
2432 | #endif | |
2433 | isdn_tty_modem_hup(info, 1); | |
2434 | } | |
2435 | } | |
2436 | ||
2437 | static void | |
2438 | isdn_tty_off_hook(void) | |
2439 | { | |
2440 | printk(KERN_DEBUG "isdn_tty_off_hook\n"); | |
2441 | } | |
2442 | ||
2443 | #define PLUSWAIT1 (HZ/2) /* 0.5 sec. */ | |
2444 | #define PLUSWAIT2 (HZ*3/2) /* 1.5 sec */ | |
2445 | ||
2446 | /* | |
2447 | * Check Buffer for Modem-escape-sequence, activate timer-callback to | |
2448 | * isdn_tty_modem_escape() if sequence found. | |
2449 | * | |
2450 | * Parameters: | |
2451 | * p pointer to databuffer | |
2452 | * plus escape-character | |
2453 | * count length of buffer | |
2454 | * pluscount count of valid escape-characters so far | |
2455 | * lastplus timestamp of last character | |
2456 | */ | |
2457 | static void | |
2458 | isdn_tty_check_esc(const u_char * p, u_char plus, int count, int *pluscount, | |
2459 | u_long *lastplus) | |
2460 | { | |
2461 | if (plus > 127) | |
2462 | return; | |
2463 | if (count > 3) { | |
2464 | p += count - 3; | |
2465 | count = 3; | |
2466 | *pluscount = 0; | |
2467 | } | |
2468 | while (count > 0) { | |
2469 | if (*(p++) == plus) { | |
2470 | if ((*pluscount)++) { | |
2471 | /* Time since last '+' > 0.5 sec. ? */ | |
2472 | if (time_after(jiffies, *lastplus + PLUSWAIT1)) | |
2473 | *pluscount = 1; | |
2474 | } else { | |
2475 | /* Time since last non-'+' < 1.5 sec. ? */ | |
2476 | if (time_before(jiffies, *lastplus + PLUSWAIT2)) | |
2477 | *pluscount = 0; | |
2478 | } | |
2479 | if ((*pluscount == 3) && (count == 1)) | |
2480 | isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS, 1); | |
2481 | if (*pluscount > 3) | |
2482 | *pluscount = 1; | |
2483 | } else | |
2484 | *pluscount = 0; | |
2485 | *lastplus = jiffies; | |
2486 | count--; | |
2487 | } | |
2488 | } | |
2489 | ||
2490 | /* | |
2491 | * Return result of AT-emulator to tty-receive-buffer, depending on | |
2492 | * modem-register 12, bit 0 and 1. | |
2493 | * For CONNECT-messages also switch to online-mode. | |
2494 | * For RING-message handle auto-ATA if register 0 != 0 | |
2495 | */ | |
2496 | ||
2497 | static void | |
2498 | isdn_tty_modem_result(int code, modem_info * info) | |
2499 | { | |
2500 | atemu *m = &info->emu; | |
2501 | static char *msg[] = | |
2502 | {"OK", "CONNECT", "RING", "NO CARRIER", "ERROR", | |
2503 | "CONNECT 64000", "NO DIALTONE", "BUSY", "NO ANSWER", | |
2504 | "RINGING", "NO MSN/EAZ", "VCON", "RUNG"}; | |
2505 | char s[ISDN_MSNLEN+10]; | |
2506 | ||
2507 | switch (code) { | |
2508 | case RESULT_RING: | |
2509 | m->mdmreg[REG_RINGCNT]++; | |
2510 | if (m->mdmreg[REG_RINGCNT] == m->mdmreg[REG_RINGATA]) | |
2511 | /* Automatically accept incoming call */ | |
2512 | isdn_tty_cmd_ATA(info); | |
2513 | break; | |
2514 | case RESULT_NO_CARRIER: | |
2515 | #ifdef ISDN_DEBUG_MODEM_HUP | |
2516 | printk(KERN_DEBUG "modem_result: NO CARRIER %d %d\n", | |
2517 | (info->flags & ISDN_ASYNC_CLOSING), | |
2518 | (!info->tty)); | |
2519 | #endif | |
2520 | m->mdmreg[REG_RINGCNT] = 0; | |
2521 | del_timer(&info->nc_timer); | |
2522 | info->ncarrier = 0; | |
2523 | if ((info->flags & ISDN_ASYNC_CLOSING) || (!info->tty)) { | |
2524 | return; | |
2525 | } | |
2526 | #ifdef CONFIG_ISDN_AUDIO | |
2527 | if (info->vonline & 1) { | |
2528 | #ifdef ISDN_DEBUG_MODEM_VOICE | |
2529 | printk(KERN_DEBUG "res3: send DLE-ETX on ttyI%d\n", | |
2530 | info->line); | |
2531 | #endif | |
2532 | /* voice-recording, add DLE-ETX */ | |
2533 | isdn_tty_at_cout("\020\003", info); | |
2534 | } | |
2535 | if (info->vonline & 2) { | |
2536 | #ifdef ISDN_DEBUG_MODEM_VOICE | |
2537 | printk(KERN_DEBUG "res3: send DLE-DC4 on ttyI%d\n", | |
2538 | info->line); | |
2539 | #endif | |
2540 | /* voice-playing, add DLE-DC4 */ | |
2541 | isdn_tty_at_cout("\020\024", info); | |
2542 | } | |
2543 | #endif | |
2544 | break; | |
2545 | case RESULT_CONNECT: | |
2546 | case RESULT_CONNECT64000: | |
2547 | sprintf(info->last_cause, "0000"); | |
2548 | if (!info->online) | |
2549 | info->online = 2; | |
2550 | break; | |
2551 | case RESULT_VCON: | |
2552 | #ifdef ISDN_DEBUG_MODEM_VOICE | |
2553 | printk(KERN_DEBUG "res3: send VCON on ttyI%d\n", | |
2554 | info->line); | |
2555 | #endif | |
2556 | sprintf(info->last_cause, "0000"); | |
2557 | if (!info->online) | |
2558 | info->online = 1; | |
2559 | break; | |
2560 | } /* switch(code) */ | |
2561 | ||
2562 | if (m->mdmreg[REG_RESP] & BIT_RESP) { | |
2563 | /* Show results */ | |
2564 | if (m->mdmreg[REG_RESPNUM] & BIT_RESPNUM) { | |
2565 | /* Show numeric results only */ | |
2566 | sprintf(s, "\r\n%d\r\n", code); | |
2567 | isdn_tty_at_cout(s, info); | |
2568 | } else { | |
2569 | if (code == RESULT_RING) { | |
2570 | /* return if "show RUNG" and ringcounter>1 */ | |
2571 | if ((m->mdmreg[REG_RUNG] & BIT_RUNG) && | |
2572 | (m->mdmreg[REG_RINGCNT] > 1)) | |
2573 | return; | |
2574 | /* print CID, _before_ _every_ ring */ | |
2575 | if (!(m->mdmreg[REG_CIDONCE] & BIT_CIDONCE)) { | |
2576 | isdn_tty_at_cout("\r\nCALLER NUMBER: ", info); | |
2577 | isdn_tty_at_cout(dev->num[info->drv_index], info); | |
2578 | if (m->mdmreg[REG_CDN] & BIT_CDN) { | |
2579 | isdn_tty_at_cout("\r\nCALLED NUMBER: ", info); | |
2580 | isdn_tty_at_cout(info->emu.cpn, info); | |
2581 | } | |
2582 | } | |
2583 | } | |
2584 | isdn_tty_at_cout("\r\n", info); | |
2585 | isdn_tty_at_cout(msg[code], info); | |
2586 | switch (code) { | |
2587 | case RESULT_CONNECT: | |
2588 | switch (m->mdmreg[REG_L2PROT]) { | |
2589 | case ISDN_PROTO_L2_MODEM: | |
2590 | isdn_tty_at_cout(" ", info); | |
2591 | isdn_tty_at_cout(m->connmsg, info); | |
2592 | break; | |
2593 | } | |
2594 | break; | |
2595 | case RESULT_RING: | |
2596 | /* Append CPN, if enabled */ | |
2597 | if ((m->mdmreg[REG_CPN] & BIT_CPN)) { | |
2598 | sprintf(s, "/%s", m->cpn); | |
2599 | isdn_tty_at_cout(s, info); | |
2600 | } | |
2601 | /* Print CID only once, _after_ 1st RING */ | |
2602 | if ((m->mdmreg[REG_CIDONCE] & BIT_CIDONCE) && | |
2603 | (m->mdmreg[REG_RINGCNT] == 1)) { | |
2604 | isdn_tty_at_cout("\r\n", info); | |
2605 | isdn_tty_at_cout("CALLER NUMBER: ", info); | |
2606 | isdn_tty_at_cout(dev->num[info->drv_index], info); | |
2607 | if (m->mdmreg[REG_CDN] & BIT_CDN) { | |
2608 | isdn_tty_at_cout("\r\nCALLED NUMBER: ", info); | |
2609 | isdn_tty_at_cout(info->emu.cpn, info); | |
2610 | } | |
2611 | } | |
2612 | break; | |
2613 | case RESULT_NO_CARRIER: | |
2614 | case RESULT_NO_DIALTONE: | |
2615 | case RESULT_BUSY: | |
2616 | case RESULT_NO_ANSWER: | |
2617 | m->mdmreg[REG_RINGCNT] = 0; | |
2618 | /* Append Cause-Message if enabled */ | |
2619 | if (m->mdmreg[REG_RESPXT] & BIT_RESPXT) { | |
2620 | sprintf(s, "/%s", info->last_cause); | |
2621 | isdn_tty_at_cout(s, info); | |
2622 | } | |
2623 | break; | |
2624 | case RESULT_CONNECT64000: | |
2625 | /* Append Protocol to CONNECT message */ | |
2626 | switch (m->mdmreg[REG_L2PROT]) { | |
2627 | case ISDN_PROTO_L2_X75I: | |
2628 | case ISDN_PROTO_L2_X75UI: | |
2629 | case ISDN_PROTO_L2_X75BUI: | |
2630 | isdn_tty_at_cout("/X.75", info); | |
2631 | break; | |
2632 | case ISDN_PROTO_L2_HDLC: | |
2633 | isdn_tty_at_cout("/HDLC", info); | |
2634 | break; | |
2635 | case ISDN_PROTO_L2_V11096: | |
2636 | isdn_tty_at_cout("/V110/9600", info); | |
2637 | break; | |
2638 | case ISDN_PROTO_L2_V11019: | |
2639 | isdn_tty_at_cout("/V110/19200", info); | |
2640 | break; | |
2641 | case ISDN_PROTO_L2_V11038: | |
2642 | isdn_tty_at_cout("/V110/38400", info); | |
2643 | break; | |
2644 | } | |
2645 | if (m->mdmreg[REG_T70] & BIT_T70) { | |
2646 | isdn_tty_at_cout("/T.70", info); | |
2647 | if (m->mdmreg[REG_T70] & BIT_T70_EXT) | |
2648 | isdn_tty_at_cout("+", info); | |
2649 | } | |
2650 | break; | |
2651 | } | |
2652 | isdn_tty_at_cout("\r\n", info); | |
2653 | } | |
2654 | } | |
2655 | if (code == RESULT_NO_CARRIER) { | |
2656 | if ((info->flags & ISDN_ASYNC_CLOSING) || (!info->tty)) { | |
2657 | return; | |
2658 | } | |
2659 | tty_ldisc_flush(info->tty); | |
2660 | if ((info->flags & ISDN_ASYNC_CHECK_CD) && | |
2661 | (!((info->flags & ISDN_ASYNC_CALLOUT_ACTIVE) && | |
2662 | (info->flags & ISDN_ASYNC_CALLOUT_NOHUP)))) { | |
2663 | tty_hangup(info->tty); | |
2664 | } | |
2665 | } | |
2666 | } | |
2667 | ||
2668 | ||
2669 | /* | |
2670 | * Display a modem-register-value. | |
2671 | */ | |
2672 | static void | |
2673 | isdn_tty_show_profile(int ridx, modem_info * info) | |
2674 | { | |
2675 | char v[6]; | |
2676 | ||
2677 | sprintf(v, "\r\n%d", info->emu.mdmreg[ridx]); | |
2678 | isdn_tty_at_cout(v, info); | |
2679 | } | |
2680 | ||
2681 | /* | |
2682 | * Get MSN-string from char-pointer, set pointer to end of number | |
2683 | */ | |
2684 | static void | |
2685 | isdn_tty_get_msnstr(char *n, char **p) | |
2686 | { | |
2687 | int limit = ISDN_MSNLEN - 1; | |
2688 | ||
2689 | while (((*p[0] >= '0' && *p[0] <= '9') || | |
2690 | /* Why a comma ??? */ | |
2691 | (*p[0] == ',') || (*p[0] == ':')) && | |
2692 | (limit--)) | |
2693 | *n++ = *p[0]++; | |
2694 | *n = '\0'; | |
2695 | } | |
2696 | ||
2697 | /* | |
2698 | * Get phone-number from modem-commandbuffer | |
2699 | */ | |
2700 | static void | |
2701 | isdn_tty_getdial(char *p, char *q,int cnt) | |
2702 | { | |
2703 | int first = 1; | |
2704 | int limit = ISDN_MSNLEN - 1; /* MUST match the size of interface var to avoid | |
2705 | buffer overflow */ | |
2706 | ||
2707 | while (strchr(" 0123456789,#.*WPTS-", *p) && *p && --cnt>0) { | |
2708 | if ((*p >= '0' && *p <= '9') || ((*p == 'S') && first) || | |
2709 | (*p == '*') || (*p == '#')) { | |
2710 | *q++ = *p; | |
2711 | limit--; | |
2712 | } | |
2713 | if(!limit) | |
2714 | break; | |
2715 | p++; | |
2716 | first = 0; | |
2717 | } | |
2718 | *q = 0; | |
2719 | } | |
2720 | ||
2721 | #define PARSE_ERROR { isdn_tty_modem_result(RESULT_ERROR, info); return; } | |
2722 | #define PARSE_ERROR1 { isdn_tty_modem_result(RESULT_ERROR, info); return 1; } | |
2723 | ||
2724 | static void | |
2725 | isdn_tty_report(modem_info * info) | |
2726 | { | |
2727 | atemu *m = &info->emu; | |
2728 | char s[80]; | |
2729 | ||
2730 | isdn_tty_at_cout("\r\nStatistics of last connection:\r\n\r\n", info); | |
2731 | sprintf(s, " Remote Number: %s\r\n", info->last_num); | |
2732 | isdn_tty_at_cout(s, info); | |
2733 | sprintf(s, " Direction: %s\r\n", info->last_dir ? "outgoing" : "incoming"); | |
2734 | isdn_tty_at_cout(s, info); | |
2735 | isdn_tty_at_cout(" Layer-2 Protocol: ", info); | |
2736 | switch (info->last_l2) { | |
2737 | case ISDN_PROTO_L2_X75I: | |
2738 | isdn_tty_at_cout("X.75i", info); | |
2739 | break; | |
2740 | case ISDN_PROTO_L2_X75UI: | |
2741 | isdn_tty_at_cout("X.75ui", info); | |
2742 | break; | |
2743 | case ISDN_PROTO_L2_X75BUI: | |
2744 | isdn_tty_at_cout("X.75bui", info); | |
2745 | break; | |
2746 | case ISDN_PROTO_L2_HDLC: | |
2747 | isdn_tty_at_cout("HDLC", info); | |
2748 | break; | |
2749 | case ISDN_PROTO_L2_V11096: | |
2750 | isdn_tty_at_cout("V.110 9600 Baud", info); | |
2751 | break; | |
2752 | case ISDN_PROTO_L2_V11019: | |
2753 | isdn_tty_at_cout("V.110 19200 Baud", info); | |
2754 | break; | |
2755 | case ISDN_PROTO_L2_V11038: | |
2756 | isdn_tty_at_cout("V.110 38400 Baud", info); | |
2757 | break; | |
2758 | case ISDN_PROTO_L2_TRANS: | |
2759 | isdn_tty_at_cout("transparent", info); | |
2760 | break; | |
2761 | case ISDN_PROTO_L2_MODEM: | |
2762 | isdn_tty_at_cout("modem", info); | |
2763 | break; | |
2764 | case ISDN_PROTO_L2_FAX: | |
2765 | isdn_tty_at_cout("fax", info); | |
2766 | break; | |
2767 | default: | |
2768 | isdn_tty_at_cout("unknown", info); | |
2769 | break; | |
2770 | } | |
2771 | if (m->mdmreg[REG_T70] & BIT_T70) { | |
2772 | isdn_tty_at_cout("/T.70", info); | |
2773 | if (m->mdmreg[REG_T70] & BIT_T70_EXT) | |
2774 | isdn_tty_at_cout("+", info); | |
2775 | } | |
2776 | isdn_tty_at_cout("\r\n", info); | |
2777 | isdn_tty_at_cout(" Service: ", info); | |
2778 | switch (info->last_si) { | |
2779 | case 1: | |
2780 | isdn_tty_at_cout("audio\r\n", info); | |
2781 | break; | |
2782 | case 5: | |
2783 | isdn_tty_at_cout("btx\r\n", info); | |
2784 | break; | |
2785 | case 7: | |
2786 | isdn_tty_at_cout("data\r\n", info); | |
2787 | break; | |
2788 | default: | |
2789 | sprintf(s, "%d\r\n", info->last_si); | |
2790 | isdn_tty_at_cout(s, info); | |
2791 | break; | |
2792 | } | |
2793 | sprintf(s, " Hangup location: %s\r\n", info->last_lhup ? "local" : "remote"); | |
2794 | isdn_tty_at_cout(s, info); | |
2795 | sprintf(s, " Last cause: %s\r\n", info->last_cause); | |
2796 | isdn_tty_at_cout(s, info); | |
2797 | } | |
2798 | ||
2799 | /* | |
2800 | * Parse AT&.. commands. | |
2801 | */ | |
2802 | static int | |
2803 | isdn_tty_cmd_ATand(char **p, modem_info * info) | |
2804 | { | |
2805 | atemu *m = &info->emu; | |
2806 | int i; | |
2807 | char rb[100]; | |
2808 | ||
2809 | #define MAXRB (sizeof(rb) - 1) | |
2810 | ||
2811 | switch (*p[0]) { | |
2812 | case 'B': | |
2813 | /* &B - Set Buffersize */ | |
2814 | p[0]++; | |
2815 | i = isdn_getnum(p); | |
2816 | if ((i < 0) || (i > ISDN_SERIAL_XMIT_MAX)) | |
2817 | PARSE_ERROR1; | |
2818 | #ifdef CONFIG_ISDN_AUDIO | |
2819 | if ((m->mdmreg[REG_SI1] & 1) && (i > VBUF)) | |
2820 | PARSE_ERROR1; | |
2821 | #endif | |
2822 | m->mdmreg[REG_PSIZE] = i / 16; | |
2823 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16; | |
2824 | switch (m->mdmreg[REG_L2PROT]) { | |
2825 | case ISDN_PROTO_L2_V11096: | |
2826 | case ISDN_PROTO_L2_V11019: | |
2827 | case ISDN_PROTO_L2_V11038: | |
2828 | info->xmit_size /= 10; | |
2829 | } | |
2830 | break; | |
2831 | case 'C': | |
2832 | /* &C - DCD Status */ | |
2833 | p[0]++; | |
2834 | switch (isdn_getnum(p)) { | |
2835 | case 0: | |
2836 | m->mdmreg[REG_DCD] &= ~BIT_DCD; | |
2837 | break; | |
2838 | case 1: | |
2839 | m->mdmreg[REG_DCD] |= BIT_DCD; | |
2840 | break; | |
2841 | default: | |
2842 | PARSE_ERROR1 | |
2843 | } | |
2844 | break; | |
2845 | case 'D': | |
2846 | /* &D - Set DTR-Low-behavior */ | |
2847 | p[0]++; | |
2848 | switch (isdn_getnum(p)) { | |
2849 | case 0: | |
2850 | m->mdmreg[REG_DTRHUP] &= ~BIT_DTRHUP; | |
2851 | m->mdmreg[REG_DTRR] &= ~BIT_DTRR; | |
2852 | break; | |
2853 | case 2: | |
2854 | m->mdmreg[REG_DTRHUP] |= BIT_DTRHUP; | |
2855 | m->mdmreg[REG_DTRR] &= ~BIT_DTRR; | |
2856 | break; | |
2857 | case 3: | |
2858 | m->mdmreg[REG_DTRHUP] |= BIT_DTRHUP; | |
2859 | m->mdmreg[REG_DTRR] |= BIT_DTRR; | |
2860 | break; | |
2861 | default: | |
2862 | PARSE_ERROR1 | |
2863 | } | |
2864 | break; | |
2865 | case 'E': | |
2866 | /* &E -Set EAZ/MSN */ | |
2867 | p[0]++; | |
2868 | isdn_tty_get_msnstr(m->msn, p); | |
2869 | break; | |
2870 | case 'F': | |
2871 | /* &F -Set Factory-Defaults */ | |
2872 | p[0]++; | |
2873 | if (info->msr & UART_MSR_DCD) | |
2874 | PARSE_ERROR1; | |
2875 | isdn_tty_reset_profile(m); | |
2876 | isdn_tty_modem_reset_regs(info, 1); | |
2877 | break; | |
2878 | #ifdef DUMMY_HAYES_AT | |
2879 | case 'K': | |
2880 | /* only for be compilant with common scripts */ | |
2881 | /* &K Flowcontrol - no function */ | |
2882 | p[0]++; | |
2883 | isdn_getnum(p); | |
2884 | break; | |
2885 | #endif | |
2886 | case 'L': | |
2887 | /* &L -Set Numbers to listen on */ | |
2888 | p[0]++; | |
2889 | i = 0; | |
2890 | while (*p[0] && (strchr("0123456789,-*[]?;", *p[0])) && | |
2891 | (i < ISDN_LMSNLEN)) | |
2892 | m->lmsn[i++] = *p[0]++; | |
2893 | m->lmsn[i] = '\0'; | |
2894 | break; | |
2895 | case 'R': | |
2896 | /* &R - Set V.110 bitrate adaption */ | |
2897 | p[0]++; | |
2898 | i = isdn_getnum(p); | |
2899 | switch (i) { | |
2900 | case 0: | |
2901 | /* Switch off V.110, back to X.75 */ | |
2902 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; | |
2903 | m->mdmreg[REG_SI2] = 0; | |
2904 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16; | |
2905 | break; | |
2906 | case 9600: | |
2907 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11096; | |
2908 | m->mdmreg[REG_SI2] = 197; | |
2909 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10; | |
2910 | break; | |
2911 | case 19200: | |
2912 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11019; | |
2913 | m->mdmreg[REG_SI2] = 199; | |
2914 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10; | |
2915 | break; | |
2916 | case 38400: | |
2917 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11038; | |
2918 | m->mdmreg[REG_SI2] = 198; /* no existing standard for this */ | |
2919 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10; | |
2920 | break; | |
2921 | default: | |
2922 | PARSE_ERROR1; | |
2923 | } | |
2924 | /* Switch off T.70 */ | |
2925 | m->mdmreg[REG_T70] &= ~(BIT_T70 | BIT_T70_EXT); | |
2926 | /* Set Service 7 */ | |
2927 | m->mdmreg[REG_SI1] |= 4; | |
2928 | break; | |
2929 | case 'S': | |
2930 | /* &S - Set Windowsize */ | |
2931 | p[0]++; | |
2932 | i = isdn_getnum(p); | |
2933 | if ((i > 0) && (i < 9)) | |
2934 | m->mdmreg[REG_WSIZE] = i; | |
2935 | else | |
2936 | PARSE_ERROR1; | |
2937 | break; | |
2938 | case 'V': | |
2939 | /* &V - Show registers */ | |
2940 | p[0]++; | |
2941 | isdn_tty_at_cout("\r\n", info); | |
2942 | for (i = 0; i < ISDN_MODEM_NUMREG; i++) { | |
2943 | sprintf(rb, "S%02d=%03d%s", i, | |
2944 | m->mdmreg[i], ((i + 1) % 10) ? " " : "\r\n"); | |
2945 | isdn_tty_at_cout(rb, info); | |
2946 | } | |
2947 | sprintf(rb, "\r\nEAZ/MSN: %.50s\r\n", | |
2948 | strlen(m->msn) ? m->msn : "None"); | |
2949 | isdn_tty_at_cout(rb, info); | |
2950 | if (strlen(m->lmsn)) { | |
2951 | isdn_tty_at_cout("\r\nListen: ", info); | |
2952 | isdn_tty_at_cout(m->lmsn, info); | |
2953 | isdn_tty_at_cout("\r\n", info); | |
2954 | } | |
2955 | break; | |
2956 | case 'W': | |
2957 | /* &W - Write Profile */ | |
2958 | p[0]++; | |
2959 | switch (*p[0]) { | |
2960 | case '0': | |
2961 | p[0]++; | |
2962 | modem_write_profile(m); | |
2963 | break; | |
2964 | default: | |
2965 | PARSE_ERROR1; | |
2966 | } | |
2967 | break; | |
2968 | case 'X': | |
2969 | /* &X - Switch to BTX-Mode and T.70 */ | |
2970 | p[0]++; | |
2971 | switch (isdn_getnum(p)) { | |
2972 | case 0: | |
2973 | m->mdmreg[REG_T70] &= ~(BIT_T70 | BIT_T70_EXT); | |
2974 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16; | |
2975 | break; | |
2976 | case 1: | |
2977 | m->mdmreg[REG_T70] |= BIT_T70; | |
2978 | m->mdmreg[REG_T70] &= ~BIT_T70_EXT; | |
2979 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; | |
2980 | info->xmit_size = 112; | |
2981 | m->mdmreg[REG_SI1] = 4; | |
2982 | m->mdmreg[REG_SI2] = 0; | |
2983 | break; | |
2984 | case 2: | |
2985 | m->mdmreg[REG_T70] |= (BIT_T70 | BIT_T70_EXT); | |
2986 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; | |
2987 | info->xmit_size = 112; | |
2988 | m->mdmreg[REG_SI1] = 4; | |
2989 | m->mdmreg[REG_SI2] = 0; | |
2990 | break; | |
2991 | default: | |
2992 | PARSE_ERROR1; | |
2993 | } | |
2994 | break; | |
2995 | default: | |
2996 | PARSE_ERROR1; | |
2997 | } | |
2998 | return 0; | |
2999 | } | |
3000 | ||
3001 | static int | |
3002 | isdn_tty_check_ats(int mreg, int mval, modem_info * info, atemu * m) | |
3003 | { | |
3004 | /* Some plausibility checks */ | |
3005 | switch (mreg) { | |
3006 | case REG_L2PROT: | |
3007 | if (mval > ISDN_PROTO_L2_MAX) | |
3008 | return 1; | |
3009 | break; | |
3010 | case REG_PSIZE: | |
3011 | if ((mval * 16) > ISDN_SERIAL_XMIT_MAX) | |
3012 | return 1; | |
3013 | #ifdef CONFIG_ISDN_AUDIO | |
3014 | if ((m->mdmreg[REG_SI1] & 1) && (mval > VBUFX)) | |
3015 | return 1; | |
3016 | #endif | |
3017 | info->xmit_size = mval * 16; | |
3018 | switch (m->mdmreg[REG_L2PROT]) { | |
3019 | case ISDN_PROTO_L2_V11096: | |
3020 | case ISDN_PROTO_L2_V11019: | |
3021 | case ISDN_PROTO_L2_V11038: | |
3022 | info->xmit_size /= 10; | |
3023 | } | |
3024 | break; | |
3025 | case REG_SI1I: | |
3026 | case REG_PLAN: | |
3027 | case REG_SCREEN: | |
3028 | /* readonly registers */ | |
3029 | return 1; | |
3030 | } | |
3031 | return 0; | |
3032 | } | |
3033 | ||
3034 | /* | |
3035 | * Perform ATS command | |
3036 | */ | |
3037 | static int | |
3038 | isdn_tty_cmd_ATS(char **p, modem_info * info) | |
3039 | { | |
3040 | atemu *m = &info->emu; | |
3041 | int bitpos; | |
3042 | int mreg; | |
3043 | int mval; | |
3044 | int bval; | |
3045 | ||
3046 | mreg = isdn_getnum(p); | |
3047 | if (mreg < 0 || mreg >= ISDN_MODEM_NUMREG) | |
3048 | PARSE_ERROR1; | |
3049 | switch (*p[0]) { | |
3050 | case '=': | |
3051 | p[0]++; | |
3052 | mval = isdn_getnum(p); | |
3053 | if (mval < 0 || mval > 255) | |
3054 | PARSE_ERROR1; | |
3055 | if (isdn_tty_check_ats(mreg, mval, info, m)) | |
3056 | PARSE_ERROR1; | |
3057 | m->mdmreg[mreg] = mval; | |
3058 | break; | |
3059 | case '.': | |
3060 | /* Set/Clear a single bit */ | |
3061 | p[0]++; | |
3062 | bitpos = isdn_getnum(p); | |
3063 | if ((bitpos < 0) || (bitpos > 7)) | |
3064 | PARSE_ERROR1; | |
3065 | switch (*p[0]) { | |
3066 | case '=': | |
3067 | p[0]++; | |
3068 | bval = isdn_getnum(p); | |
3069 | if (bval < 0 || bval > 1) | |
3070 | PARSE_ERROR1; | |
3071 | if (bval) | |
3072 | mval = m->mdmreg[mreg] | (1 << bitpos); | |
3073 | else | |
3074 | mval = m->mdmreg[mreg] & ~(1 << bitpos); | |
3075 | if (isdn_tty_check_ats(mreg, mval, info, m)) | |
3076 | PARSE_ERROR1; | |
3077 | m->mdmreg[mreg] = mval; | |
3078 | break; | |
3079 | case '?': | |
3080 | p[0]++; | |
3081 | isdn_tty_at_cout("\r\n", info); | |
3082 | isdn_tty_at_cout((m->mdmreg[mreg] & (1 << bitpos)) ? "1" : "0", | |
3083 | info); | |
3084 | break; | |
3085 | default: | |
3086 | PARSE_ERROR1; | |
3087 | } | |
3088 | break; | |
3089 | case '?': | |
3090 | p[0]++; | |
3091 | isdn_tty_show_profile(mreg, info); | |
3092 | break; | |
3093 | default: | |
3094 | PARSE_ERROR1; | |
3095 | break; | |
3096 | } | |
3097 | return 0; | |
3098 | } | |
3099 | ||
3100 | /* | |
3101 | * Perform ATA command | |
3102 | */ | |
3103 | static void | |
3104 | isdn_tty_cmd_ATA(modem_info * info) | |
3105 | { | |
3106 | atemu *m = &info->emu; | |
3107 | isdn_ctrl cmd; | |
3108 | int l2; | |
3109 | ||
3110 | if (info->msr & UART_MSR_RI) { | |
3111 | /* Accept incoming call */ | |
3112 | info->last_dir = 0; | |
3113 | strcpy(info->last_num, dev->num[info->drv_index]); | |
3114 | m->mdmreg[REG_RINGCNT] = 0; | |
3115 | info->msr &= ~UART_MSR_RI; | |
3116 | l2 = m->mdmreg[REG_L2PROT]; | |
3117 | #ifdef CONFIG_ISDN_AUDIO | |
3118 | /* If more than one bit set in reg18, autoselect Layer2 */ | |
3119 | if ((m->mdmreg[REG_SI1] & m->mdmreg[REG_SI1I]) != m->mdmreg[REG_SI1]) { | |
3120 | if (m->mdmreg[REG_SI1I] == 1) { | |
3121 | if ((l2 != ISDN_PROTO_L2_MODEM) && (l2 != ISDN_PROTO_L2_FAX)) | |
3122 | l2 = ISDN_PROTO_L2_TRANS; | |
3123 | } else | |
3124 | l2 = ISDN_PROTO_L2_X75I; | |
3125 | } | |
3126 | #endif | |
3127 | cmd.driver = info->isdn_driver; | |
3128 | cmd.command = ISDN_CMD_SETL2; | |
3129 | cmd.arg = info->isdn_channel + (l2 << 8); | |
3130 | info->last_l2 = l2; | |
3131 | isdn_command(&cmd); | |
3132 | cmd.driver = info->isdn_driver; | |
3133 | cmd.command = ISDN_CMD_SETL3; | |
3134 | cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); | |
3135 | #ifdef CONFIG_ISDN_TTY_FAX | |
3136 | if (l2 == ISDN_PROTO_L2_FAX) { | |
3137 | cmd.parm.fax = info->fax; | |
3138 | info->fax->direction = ISDN_TTY_FAX_CONN_IN; | |
3139 | } | |
3140 | #endif | |
3141 | isdn_command(&cmd); | |
3142 | cmd.driver = info->isdn_driver; | |
3143 | cmd.arg = info->isdn_channel; | |
3144 | cmd.command = ISDN_CMD_ACCEPTD; | |
3145 | info->dialing = 16; | |
3146 | info->emu.carrierwait = 0; | |
3147 | isdn_command(&cmd); | |
3148 | isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1); | |
3149 | } else | |
3150 | isdn_tty_modem_result(RESULT_NO_ANSWER, info); | |
3151 | } | |
3152 | ||
3153 | #ifdef CONFIG_ISDN_AUDIO | |
3154 | /* | |
3155 | * Parse AT+F.. commands | |
3156 | */ | |
3157 | static int | |
3158 | isdn_tty_cmd_PLUSF(char **p, modem_info * info) | |
3159 | { | |
3160 | atemu *m = &info->emu; | |
3161 | char rs[20]; | |
3162 | ||
3163 | if (!strncmp(p[0], "CLASS", 5)) { | |
3164 | p[0] += 5; | |
3165 | switch (*p[0]) { | |
3166 | case '?': | |
3167 | p[0]++; | |
3168 | sprintf(rs, "\r\n%d", | |
3169 | (m->mdmreg[REG_SI1] & 1) ? 8 : 0); | |
3170 | #ifdef CONFIG_ISDN_TTY_FAX | |
3171 | if (TTY_IS_FCLASS2(info)) | |
3172 | sprintf(rs, "\r\n2"); | |
3173 | else if (TTY_IS_FCLASS1(info)) | |
3174 | sprintf(rs, "\r\n1"); | |
3175 | #endif | |
3176 | isdn_tty_at_cout(rs, info); | |
3177 | break; | |
3178 | case '=': | |
3179 | p[0]++; | |
3180 | switch (*p[0]) { | |
3181 | case '0': | |
3182 | p[0]++; | |
3183 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; | |
3184 | m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_TRANS; | |
3185 | m->mdmreg[REG_SI1] = 4; | |
3186 | info->xmit_size = | |
3187 | m->mdmreg[REG_PSIZE] * 16; | |
3188 | break; | |
3189 | #ifdef CONFIG_ISDN_TTY_FAX | |
3190 | case '1': | |
3191 | p[0]++; | |
3192 | if (!(dev->global_features & | |
3193 | ISDN_FEATURE_L3_FCLASS1)) | |
3194 | PARSE_ERROR1; | |
3195 | m->mdmreg[REG_SI1] = 1; | |
3196 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_FAX; | |
3197 | m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_FCLASS1; | |
3198 | info->xmit_size = | |
3199 | m->mdmreg[REG_PSIZE] * 16; | |
3200 | break; | |
3201 | case '2': | |
3202 | p[0]++; | |
3203 | if (!(dev->global_features & | |
3204 | ISDN_FEATURE_L3_FCLASS2)) | |
3205 | PARSE_ERROR1; | |
3206 | m->mdmreg[REG_SI1] = 1; | |
3207 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_FAX; | |
3208 | m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_FCLASS2; | |
3209 | info->xmit_size = | |
3210 | m->mdmreg[REG_PSIZE] * 16; | |
3211 | break; | |
3212 | #endif | |
3213 | case '8': | |
3214 | p[0]++; | |
3215 | /* L2 will change on dialout with si=1 */ | |
3216 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; | |
3217 | m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_TRANS; | |
3218 | m->mdmreg[REG_SI1] = 5; | |
3219 | info->xmit_size = VBUF; | |
3220 | break; | |
3221 | case '?': | |
3222 | p[0]++; | |
3223 | strcpy(rs, "\r\n0,"); | |
3224 | #ifdef CONFIG_ISDN_TTY_FAX | |
3225 | if (dev->global_features & | |
3226 | ISDN_FEATURE_L3_FCLASS1) | |
3227 | strcat(rs, "1,"); | |
3228 | if (dev->global_features & | |
3229 | ISDN_FEATURE_L3_FCLASS2) | |
3230 | strcat(rs, "2,"); | |
3231 | #endif | |
3232 | strcat(rs, "8"); | |
3233 | isdn_tty_at_cout(rs, info); | |
3234 | break; | |
3235 | default: | |
3236 | PARSE_ERROR1; | |
3237 | } | |
3238 | break; | |
3239 | default: | |
3240 | PARSE_ERROR1; | |
3241 | } | |
3242 | return 0; | |
3243 | } | |
3244 | #ifdef CONFIG_ISDN_TTY_FAX | |
3245 | return (isdn_tty_cmd_PLUSF_FAX(p, info)); | |
3246 | #else | |
3247 | PARSE_ERROR1; | |
3248 | #endif | |
3249 | } | |
3250 | ||
3251 | /* | |
3252 | * Parse AT+V.. commands | |
3253 | */ | |
3254 | static int | |
3255 | isdn_tty_cmd_PLUSV(char **p, modem_info * info) | |
3256 | { | |
3257 | atemu *m = &info->emu; | |
3258 | isdn_ctrl cmd; | |
3259 | static char *vcmd[] = | |
3260 | {"NH", "IP", "LS", "RX", "SD", "SM", "TX", "DD", NULL}; | |
3261 | int i; | |
3262 | int par1; | |
3263 | int par2; | |
3264 | char rs[20]; | |
3265 | ||
3266 | i = 0; | |
3267 | while (vcmd[i]) { | |
3268 | if (!strncmp(vcmd[i], p[0], 2)) { | |
3269 | p[0] += 2; | |
3270 | break; | |
3271 | } | |
3272 | i++; | |
3273 | } | |
3274 | switch (i) { | |
3275 | case 0: | |
3276 | /* AT+VNH - Auto hangup feature */ | |
3277 | switch (*p[0]) { | |
3278 | case '?': | |
3279 | p[0]++; | |
3280 | isdn_tty_at_cout("\r\n1", info); | |
3281 | break; | |
3282 | case '=': | |
3283 | p[0]++; | |
3284 | switch (*p[0]) { | |
3285 | case '1': | |
3286 | p[0]++; | |
3287 | break; | |
3288 | case '?': | |
3289 | p[0]++; | |
3290 | isdn_tty_at_cout("\r\n1", info); | |
3291 | break; | |
3292 | default: | |
3293 | PARSE_ERROR1; | |
3294 | } | |
3295 | break; | |
3296 | default: | |
3297 | PARSE_ERROR1; | |
3298 | } | |
3299 | break; | |
3300 | case 1: | |
3301 | /* AT+VIP - Reset all voice parameters */ | |
3302 | isdn_tty_modem_reset_vpar(m); | |
3303 | break; | |
3304 | case 2: | |
3305 | /* AT+VLS - Select device, accept incoming call */ | |
3306 | switch (*p[0]) { | |
3307 | case '?': | |
3308 | p[0]++; | |
3309 | sprintf(rs, "\r\n%d", m->vpar[0]); | |
3310 | isdn_tty_at_cout(rs, info); | |
3311 | break; | |
3312 | case '=': | |
3313 | p[0]++; | |
3314 | switch (*p[0]) { | |
3315 | case '0': | |
3316 | p[0]++; | |
3317 | m->vpar[0] = 0; | |
3318 | break; | |
3319 | case '2': | |
3320 | p[0]++; | |
3321 | m->vpar[0] = 2; | |
3322 | break; | |
3323 | case '?': | |
3324 | p[0]++; | |
3325 | isdn_tty_at_cout("\r\n0,2", info); | |
3326 | break; | |
3327 | default: | |
3328 | PARSE_ERROR1; | |
3329 | } | |
3330 | break; | |
3331 | default: | |
3332 | PARSE_ERROR1; | |
3333 | } | |
3334 | break; | |
3335 | case 3: | |
3336 | /* AT+VRX - Start recording */ | |
3337 | if (!m->vpar[0]) | |
3338 | PARSE_ERROR1; | |
3339 | if (info->online != 1) { | |
3340 | isdn_tty_modem_result(RESULT_NO_ANSWER, info); | |
3341 | return 1; | |
3342 | } | |
3343 | info->dtmf_state = isdn_audio_dtmf_init(info->dtmf_state); | |
3344 | if (!info->dtmf_state) { | |
3345 | printk(KERN_WARNING "isdn_tty: Couldn't malloc dtmf state\n"); | |
3346 | PARSE_ERROR1; | |
3347 | } | |
3348 | info->silence_state = isdn_audio_silence_init(info->silence_state); | |
3349 | if (!info->silence_state) { | |
3350 | printk(KERN_WARNING "isdn_tty: Couldn't malloc silence state\n"); | |
3351 | PARSE_ERROR1; | |
3352 | } | |
3353 | if (m->vpar[3] < 5) { | |
3354 | info->adpcmr = isdn_audio_adpcm_init(info->adpcmr, m->vpar[3]); | |
3355 | if (!info->adpcmr) { | |
3356 | printk(KERN_WARNING "isdn_tty: Couldn't malloc adpcm state\n"); | |
3357 | PARSE_ERROR1; | |
3358 | } | |
3359 | } | |
3360 | #ifdef ISDN_DEBUG_AT | |
3361 | printk(KERN_DEBUG "AT: +VRX\n"); | |
3362 | #endif | |
3363 | info->vonline |= 1; | |
3364 | isdn_tty_modem_result(RESULT_CONNECT, info); | |
3365 | return 0; | |
3366 | break; | |
3367 | case 4: | |
3368 | /* AT+VSD - Silence detection */ | |
3369 | switch (*p[0]) { | |
3370 | case '?': | |
3371 | p[0]++; | |
3372 | sprintf(rs, "\r\n<%d>,<%d>", | |
3373 | m->vpar[1], | |
3374 | m->vpar[2]); | |
3375 | isdn_tty_at_cout(rs, info); | |
3376 | break; | |
3377 | case '=': | |
3378 | p[0]++; | |
3379 | if ((*p[0]>='0') && (*p[0]<='9')) { | |
3380 | par1 = isdn_getnum(p); | |
3381 | if ((par1 < 0) || (par1 > 31)) | |
3382 | PARSE_ERROR1; | |
3383 | if (*p[0] != ',') | |
3384 | PARSE_ERROR1; | |
3385 | p[0]++; | |
3386 | par2 = isdn_getnum(p); | |
3387 | if ((par2 < 0) || (par2 > 255)) | |
3388 | PARSE_ERROR1; | |
3389 | m->vpar[1] = par1; | |
3390 | m->vpar[2] = par2; | |
3391 | break; | |
3392 | } else | |
3393 | if (*p[0] == '?') { | |
3394 | p[0]++; | |
3395 | isdn_tty_at_cout("\r\n<0-31>,<0-255>", | |
3396 | info); | |
3397 | break; | |
3398 | } else | |
3399 | PARSE_ERROR1; | |
3400 | break; | |
3401 | default: | |
3402 | PARSE_ERROR1; | |
3403 | } | |
3404 | break; | |
3405 | case 5: | |
3406 | /* AT+VSM - Select compression */ | |
3407 | switch (*p[0]) { | |
3408 | case '?': | |
3409 | p[0]++; | |
3410 | sprintf(rs, "\r\n<%d>,<%d><8000>", | |
3411 | m->vpar[3], | |
3412 | m->vpar[1]); | |
3413 | isdn_tty_at_cout(rs, info); | |
3414 | break; | |
3415 | case '=': | |
3416 | p[0]++; | |
3417 | switch (*p[0]) { | |
3418 | case '2': | |
3419 | case '3': | |
3420 | case '4': | |
3421 | case '5': | |
3422 | case '6': | |
3423 | par1 = isdn_getnum(p); | |
3424 | if ((par1 < 2) || (par1 > 6)) | |
3425 | PARSE_ERROR1; | |
3426 | m->vpar[3] = par1; | |
3427 | break; | |
3428 | case '?': | |
3429 | p[0]++; | |
3430 | isdn_tty_at_cout("\r\n2;ADPCM;2;0;(8000)\r\n", | |
3431 | info); | |
3432 | isdn_tty_at_cout("3;ADPCM;3;0;(8000)\r\n", | |
3433 | info); | |
3434 | isdn_tty_at_cout("4;ADPCM;4;0;(8000)\r\n", | |
3435 | info); | |
3436 | isdn_tty_at_cout("5;ALAW;8;0;(8000)\r\n", | |
3437 | info); | |
3438 | isdn_tty_at_cout("6;ULAW;8;0;(8000)\r\n", | |
3439 | info); | |
3440 | break; | |
3441 | default: | |
3442 | PARSE_ERROR1; | |
3443 | } | |
3444 | break; | |
3445 | default: | |
3446 | PARSE_ERROR1; | |
3447 | } | |
3448 | break; | |
3449 | case 6: | |
3450 | /* AT+VTX - Start sending */ | |
3451 | if (!m->vpar[0]) | |
3452 | PARSE_ERROR1; | |
3453 | if (info->online != 1) { | |
3454 | isdn_tty_modem_result(RESULT_NO_ANSWER, info); | |
3455 | return 1; | |
3456 | } | |
3457 | info->dtmf_state = isdn_audio_dtmf_init(info->dtmf_state); | |
3458 | if (!info->dtmf_state) { | |
3459 | printk(KERN_WARNING "isdn_tty: Couldn't malloc dtmf state\n"); | |
3460 | PARSE_ERROR1; | |
3461 | } | |
3462 | if (m->vpar[3] < 5) { | |
3463 | info->adpcms = isdn_audio_adpcm_init(info->adpcms, m->vpar[3]); | |
3464 | if (!info->adpcms) { | |
3465 | printk(KERN_WARNING "isdn_tty: Couldn't malloc adpcm state\n"); | |
3466 | PARSE_ERROR1; | |
3467 | } | |
3468 | } | |
3469 | #ifdef ISDN_DEBUG_AT | |
3470 | printk(KERN_DEBUG "AT: +VTX\n"); | |
3471 | #endif | |
3472 | m->lastDLE = 0; | |
3473 | info->vonline |= 2; | |
3474 | isdn_tty_modem_result(RESULT_CONNECT, info); | |
3475 | return 0; | |
3476 | break; | |
3477 | case 7: | |
3478 | /* AT+VDD - DTMF detection */ | |
3479 | switch (*p[0]) { | |
3480 | case '?': | |
3481 | p[0]++; | |
3482 | sprintf(rs, "\r\n<%d>,<%d>", | |
3483 | m->vpar[4], | |
3484 | m->vpar[5]); | |
3485 | isdn_tty_at_cout(rs, info); | |
3486 | break; | |
3487 | case '=': | |
3488 | p[0]++; | |
3489 | if ((*p[0]>='0') && (*p[0]<='9')) { | |
3490 | if (info->online != 1) | |
3491 | PARSE_ERROR1; | |
3492 | par1 = isdn_getnum(p); | |
3493 | if ((par1 < 0) || (par1 > 15)) | |
3494 | PARSE_ERROR1; | |
3495 | if (*p[0] != ',') | |
3496 | PARSE_ERROR1; | |
3497 | p[0]++; | |
3498 | par2 = isdn_getnum(p); | |
3499 | if ((par2 < 0) || (par2 > 255)) | |
3500 | PARSE_ERROR1; | |
3501 | m->vpar[4] = par1; | |
3502 | m->vpar[5] = par2; | |
3503 | cmd.driver = info->isdn_driver; | |
3504 | cmd.command = ISDN_CMD_AUDIO; | |
3505 | cmd.arg = info->isdn_channel + (ISDN_AUDIO_SETDD << 8); | |
3506 | cmd.parm.num[0] = par1; | |
3507 | cmd.parm.num[1] = par2; | |
3508 | isdn_command(&cmd); | |
3509 | break; | |
3510 | } else | |
3511 | if (*p[0] == '?') { | |
3512 | p[0]++; | |
3513 | isdn_tty_at_cout("\r\n<0-15>,<0-255>", | |
3514 | info); | |
3515 | break; | |
3516 | } else | |
3517 | PARSE_ERROR1; | |
3518 | break; | |
3519 | default: | |
3520 | PARSE_ERROR1; | |
3521 | } | |
3522 | break; | |
3523 | default: | |
3524 | PARSE_ERROR1; | |
3525 | } | |
3526 | return 0; | |
3527 | } | |
3528 | #endif /* CONFIG_ISDN_AUDIO */ | |
3529 | ||
3530 | /* | |
3531 | * Parse and perform an AT-command-line. | |
3532 | */ | |
3533 | static void | |
3534 | isdn_tty_parse_at(modem_info * info) | |
3535 | { | |
3536 | atemu *m = &info->emu; | |
3537 | char *p; | |
3538 | char ds[40]; | |
3539 | ||
3540 | #ifdef ISDN_DEBUG_AT | |
3541 | printk(KERN_DEBUG "AT: '%s'\n", m->mdmcmd); | |
3542 | #endif | |
3543 | for (p = &m->mdmcmd[2]; *p;) { | |
3544 | switch (*p) { | |
3545 | case ' ': | |
3546 | p++; | |
3547 | break; | |
3548 | case 'A': | |
3549 | /* A - Accept incoming call */ | |
3550 | p++; | |
3551 | isdn_tty_cmd_ATA(info); | |
3552 | return; | |
3553 | break; | |
3554 | case 'D': | |
3555 | /* D - Dial */ | |
3556 | if (info->msr & UART_MSR_DCD) | |
3557 | PARSE_ERROR; | |
3558 | if (info->msr & UART_MSR_RI) { | |
3559 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
3560 | return; | |
3561 | } | |
3562 | isdn_tty_getdial(++p, ds, sizeof ds); | |
3563 | p += strlen(p); | |
3564 | if (!strlen(m->msn)) | |
3565 | isdn_tty_modem_result(RESULT_NO_MSN_EAZ, info); | |
3566 | else if (strlen(ds)) | |
3567 | isdn_tty_dial(ds, info, m); | |
3568 | else | |
3569 | PARSE_ERROR; | |
3570 | return; | |
3571 | case 'E': | |
3572 | /* E - Turn Echo on/off */ | |
3573 | p++; | |
3574 | switch (isdn_getnum(&p)) { | |
3575 | case 0: | |
3576 | m->mdmreg[REG_ECHO] &= ~BIT_ECHO; | |
3577 | break; | |
3578 | case 1: | |
3579 | m->mdmreg[REG_ECHO] |= BIT_ECHO; | |
3580 | break; | |
3581 | default: | |
3582 | PARSE_ERROR; | |
3583 | } | |
3584 | break; | |
3585 | case 'H': | |
3586 | /* H - On/Off-hook */ | |
3587 | p++; | |
3588 | switch (*p) { | |
3589 | case '0': | |
3590 | p++; | |
3591 | isdn_tty_on_hook(info); | |
3592 | break; | |
3593 | case '1': | |
3594 | p++; | |
3595 | isdn_tty_off_hook(); | |
3596 | break; | |
3597 | default: | |
3598 | isdn_tty_on_hook(info); | |
3599 | break; | |
3600 | } | |
3601 | break; | |
3602 | case 'I': | |
3603 | /* I - Information */ | |
3604 | p++; | |
3605 | isdn_tty_at_cout("\r\nLinux ISDN", info); | |
3606 | switch (*p) { | |
3607 | case '0': | |
3608 | case '1': | |
3609 | p++; | |
3610 | break; | |
3611 | case '2': | |
3612 | p++; | |
3613 | isdn_tty_report(info); | |
3614 | break; | |
3615 | case '3': | |
3616 | p++; | |
3617 | sprintf(ds, "\r\n%d", info->emu.charge); | |
3618 | isdn_tty_at_cout(ds, info); | |
3619 | break; | |
3620 | default:; | |
3621 | } | |
3622 | break; | |
3623 | #ifdef DUMMY_HAYES_AT | |
3624 | case 'L': | |
3625 | case 'M': | |
3626 | /* only for be compilant with common scripts */ | |
3627 | /* no function */ | |
3628 | p++; | |
3629 | isdn_getnum(&p); | |
3630 | break; | |
3631 | #endif | |
3632 | case 'O': | |
3633 | /* O - Go online */ | |
3634 | p++; | |
3635 | if (info->msr & UART_MSR_DCD) | |
3636 | /* if B-Channel is up */ | |
3637 | isdn_tty_modem_result((m->mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM) ? RESULT_CONNECT:RESULT_CONNECT64000, info); | |
3638 | else | |
3639 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
3640 | return; | |
3641 | case 'Q': | |
3642 | /* Q - Turn Emulator messages on/off */ | |
3643 | p++; | |
3644 | switch (isdn_getnum(&p)) { | |
3645 | case 0: | |
3646 | m->mdmreg[REG_RESP] |= BIT_RESP; | |
3647 | break; | |
3648 | case 1: | |
3649 | m->mdmreg[REG_RESP] &= ~BIT_RESP; | |
3650 | break; | |
3651 | default: | |
3652 | PARSE_ERROR; | |
3653 | } | |
3654 | break; | |
3655 | case 'S': | |
3656 | /* S - Set/Get Register */ | |
3657 | p++; | |
3658 | if (isdn_tty_cmd_ATS(&p, info)) | |
3659 | return; | |
3660 | break; | |
3661 | case 'V': | |
3662 | /* V - Numeric or ASCII Emulator-messages */ | |
3663 | p++; | |
3664 | switch (isdn_getnum(&p)) { | |
3665 | case 0: | |
3666 | m->mdmreg[REG_RESP] |= BIT_RESPNUM; | |
3667 | break; | |
3668 | case 1: | |
3669 | m->mdmreg[REG_RESP] &= ~BIT_RESPNUM; | |
3670 | break; | |
3671 | default: | |
3672 | PARSE_ERROR; | |
3673 | } | |
3674 | break; | |
3675 | case 'Z': | |
3676 | /* Z - Load Registers from Profile */ | |
3677 | p++; | |
3678 | if (info->msr & UART_MSR_DCD) { | |
3679 | info->online = 0; | |
3680 | isdn_tty_on_hook(info); | |
3681 | } | |
3682 | isdn_tty_modem_reset_regs(info, 1); | |
3683 | break; | |
3684 | case '+': | |
3685 | p++; | |
3686 | switch (*p) { | |
3687 | #ifdef CONFIG_ISDN_AUDIO | |
3688 | case 'F': | |
3689 | p++; | |
3690 | if (isdn_tty_cmd_PLUSF(&p, info)) | |
3691 | return; | |
3692 | break; | |
3693 | case 'V': | |
3694 | if ((!(m->mdmreg[REG_SI1] & 1)) || | |
3695 | (m->mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM)) | |
3696 | PARSE_ERROR; | |
3697 | p++; | |
3698 | if (isdn_tty_cmd_PLUSV(&p, info)) | |
3699 | return; | |
3700 | break; | |
3701 | #endif /* CONFIG_ISDN_AUDIO */ | |
3702 | case 'S': /* SUSPEND */ | |
3703 | p++; | |
3704 | isdn_tty_get_msnstr(ds, &p); | |
3705 | isdn_tty_suspend(ds, info, m); | |
3706 | break; | |
3707 | case 'R': /* RESUME */ | |
3708 | p++; | |
3709 | isdn_tty_get_msnstr(ds, &p); | |
3710 | isdn_tty_resume(ds, info, m); | |
3711 | break; | |
3712 | case 'M': /* MESSAGE */ | |
3713 | p++; | |
3714 | isdn_tty_send_msg(info, m, p); | |
3715 | break; | |
3716 | default: | |
3717 | PARSE_ERROR; | |
3718 | } | |
3719 | break; | |
3720 | case '&': | |
3721 | p++; | |
3722 | if (isdn_tty_cmd_ATand(&p, info)) | |
3723 | return; | |
3724 | break; | |
3725 | default: | |
3726 | PARSE_ERROR; | |
3727 | } | |
3728 | } | |
3729 | #ifdef CONFIG_ISDN_AUDIO | |
3730 | if (!info->vonline) | |
3731 | #endif | |
3732 | isdn_tty_modem_result(RESULT_OK, info); | |
3733 | } | |
3734 | ||
3735 | /* Need own toupper() because standard-toupper is not available | |
3736 | * within modules. | |
3737 | */ | |
3738 | #define my_toupper(c) (((c>='a')&&(c<='z'))?(c&0xdf):c) | |
3739 | ||
3740 | /* | |
3741 | * Perform line-editing of AT-commands | |
3742 | * | |
3743 | * Parameters: | |
3744 | * p inputbuffer | |
3745 | * count length of buffer | |
3746 | * channel index to line (minor-device) | |
3747 | */ | |
3748 | static int | |
3749 | isdn_tty_edit_at(const char *p, int count, modem_info * info) | |
3750 | { | |
3751 | atemu *m = &info->emu; | |
3752 | int total = 0; | |
3753 | u_char c; | |
3754 | char eb[2]; | |
3755 | int cnt; | |
3756 | ||
3757 | for (cnt = count; cnt > 0; p++, cnt--) { | |
3758 | c = *p; | |
3759 | total++; | |
3760 | if (c == m->mdmreg[REG_CR] || c == m->mdmreg[REG_LF]) { | |
3761 | /* Separator (CR or LF) */ | |
3762 | m->mdmcmd[m->mdmcmdl] = 0; | |
3763 | if (m->mdmreg[REG_ECHO] & BIT_ECHO) { | |
3764 | eb[0] = c; | |
3765 | eb[1] = 0; | |
3766 | isdn_tty_at_cout(eb, info); | |
3767 | } | |
3768 | if ((m->mdmcmdl >= 2) && (!(strncmp(m->mdmcmd, "AT", 2)))) | |
3769 | isdn_tty_parse_at(info); | |
3770 | m->mdmcmdl = 0; | |
3771 | continue; | |
3772 | } | |
3773 | if (c == m->mdmreg[REG_BS] && m->mdmreg[REG_BS] < 128) { | |
3774 | /* Backspace-Function */ | |
3775 | if ((m->mdmcmdl > 2) || (!m->mdmcmdl)) { | |
3776 | if (m->mdmcmdl) | |
3777 | m->mdmcmdl--; | |
3778 | if (m->mdmreg[REG_ECHO] & BIT_ECHO) | |
3779 | isdn_tty_at_cout("\b", info); | |
3780 | } | |
3781 | continue; | |
3782 | } | |
3783 | if (cmdchar(c)) { | |
3784 | if (m->mdmreg[REG_ECHO] & BIT_ECHO) { | |
3785 | eb[0] = c; | |
3786 | eb[1] = 0; | |
3787 | isdn_tty_at_cout(eb, info); | |
3788 | } | |
3789 | if (m->mdmcmdl < 255) { | |
3790 | c = my_toupper(c); | |
3791 | switch (m->mdmcmdl) { | |
3792 | case 1: | |
3793 | if (c == 'T') { | |
3794 | m->mdmcmd[m->mdmcmdl] = c; | |
3795 | m->mdmcmd[++m->mdmcmdl] = 0; | |
3796 | break; | |
3797 | } else | |
3798 | m->mdmcmdl = 0; | |
3799 | /* Fall through, check for 'A' */ | |
3800 | case 0: | |
3801 | if (c == 'A') { | |
3802 | m->mdmcmd[m->mdmcmdl] = c; | |
3803 | m->mdmcmd[++m->mdmcmdl] = 0; | |
3804 | } | |
3805 | break; | |
3806 | default: | |
3807 | m->mdmcmd[m->mdmcmdl] = c; | |
3808 | m->mdmcmd[++m->mdmcmdl] = 0; | |
3809 | } | |
3810 | } | |
3811 | } | |
3812 | } | |
3813 | return total; | |
3814 | } | |
3815 | ||
3816 | /* | |
3817 | * Switch all modem-channels who are online and got a valid | |
3818 | * escape-sequence 1.5 seconds ago, to command-mode. | |
3819 | * This function is called every second via timer-interrupt from within | |
3820 | * timer-dispatcher isdn_timer_function() | |
3821 | */ | |
3822 | void | |
3823 | isdn_tty_modem_escape(void) | |
3824 | { | |
3825 | int ton = 0; | |
3826 | int i; | |
3827 | int midx; | |
3828 | ||
3829 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) | |
3830 | if (USG_MODEM(dev->usage[i])) | |
3831 | if ((midx = dev->m_idx[i]) >= 0) { | |
3832 | modem_info *info = &dev->mdm.info[midx]; | |
3833 | if (info->online) { | |
3834 | ton = 1; | |
3835 | if ((info->emu.pluscount == 3) && | |
3836 | time_after(jiffies , info->emu.lastplus + PLUSWAIT2)) { | |
3837 | info->emu.pluscount = 0; | |
3838 | info->online = 0; | |
3839 | isdn_tty_modem_result(RESULT_OK, info); | |
3840 | } | |
3841 | } | |
3842 | } | |
3843 | isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS, ton); | |
3844 | } | |
3845 | ||
3846 | /* | |
3847 | * Put a RING-message to all modem-channels who have the RI-bit set. | |
3848 | * This function is called every second via timer-interrupt from within | |
3849 | * timer-dispatcher isdn_timer_function() | |
3850 | */ | |
3851 | void | |
3852 | isdn_tty_modem_ring(void) | |
3853 | { | |
3854 | int ton = 0; | |
3855 | int i; | |
3856 | ||
3857 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
3858 | modem_info *info = &dev->mdm.info[i]; | |
3859 | if (info->msr & UART_MSR_RI) { | |
3860 | ton = 1; | |
3861 | isdn_tty_modem_result(RESULT_RING, info); | |
3862 | } | |
3863 | } | |
3864 | isdn_timer_ctrl(ISDN_TIMER_MODEMRING, ton); | |
3865 | } | |
3866 | ||
3867 | /* | |
3868 | * For all online tty's, try sending data to | |
3869 | * the lower levels. | |
3870 | */ | |
3871 | void | |
3872 | isdn_tty_modem_xmit(void) | |
3873 | { | |
3874 | int ton = 1; | |
3875 | int i; | |
3876 | ||
3877 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
3878 | modem_info *info = &dev->mdm.info[i]; | |
3879 | if (info->online) { | |
3880 | ton = 1; | |
3881 | isdn_tty_senddown(info); | |
3882 | isdn_tty_tint(info); | |
3883 | } | |
3884 | } | |
3885 | isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, ton); | |
3886 | } | |
3887 | ||
3888 | /* | |
3889 | * Check all channels if we have a 'no carrier' timeout. | |
3890 | * Timeout value is set by Register S7. | |
3891 | */ | |
3892 | void | |
3893 | isdn_tty_carrier_timeout(void) | |
3894 | { | |
3895 | int ton = 0; | |
3896 | int i; | |
3897 | ||
3898 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
3899 | modem_info *info = &dev->mdm.info[i]; | |
3900 | if (info->dialing) { | |
3901 | if (info->emu.carrierwait++ > info->emu.mdmreg[REG_WAITC]) { | |
3902 | info->dialing = 0; | |
3903 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
3904 | isdn_tty_modem_hup(info, 1); | |
3905 | } | |
3906 | else | |
3907 | ton = 1; | |
3908 | } | |
3909 | } | |
3910 | isdn_timer_ctrl(ISDN_TIMER_CARRIER, ton); | |
3911 | } |