]>
Commit | Line | Data |
---|---|---|
1ca6711e | 1 | /* |
1da177e4 LT |
2 | * Linux ISDN subsystem, tty functions and AT-command emulator (linklevel). |
3 | * | |
4 | * Copyright 1994-1999 by Fritz Elfert (fritz@isdn4linux.de) | |
5 | * Copyright 1995,96 by Thinking Objects Software GmbH Wuerzburg | |
6 | * | |
7 | * This software may be used and distributed according to the terms | |
8 | * of the GNU General Public License, incorporated herein by reference. | |
9 | * | |
10 | */ | |
11 | #undef ISDN_TTY_STAT_DEBUG | |
12 | ||
1da177e4 | 13 | #include <linux/isdn.h> |
6776a2f0 | 14 | #include <linux/serial.h> /* ASYNC_* flags */ |
5a0e3ad6 | 15 | #include <linux/slab.h> |
1da177e4 | 16 | #include <linux/delay.h> |
72250d44 | 17 | #include <linux/mutex.h> |
3f07c014 | 18 | #include <linux/sched/signal.h> |
1da177e4 LT |
19 | #include "isdn_common.h" |
20 | #include "isdn_tty.h" | |
21 | #ifdef CONFIG_ISDN_AUDIO | |
22 | #include "isdn_audio.h" | |
23 | #define VBUF 0x3e0 | |
24 | #define VBUFX (VBUF/16) | |
25 | #endif | |
26 | ||
27 | #define FIX_FILE_TRANSFER | |
28 | #define DUMMY_HAYES_AT | |
29 | ||
30 | /* Prototypes */ | |
31 | ||
72250d44 | 32 | static DEFINE_MUTEX(modem_info_mutex); |
1da177e4 LT |
33 | static int isdn_tty_edit_at(const char *, int, modem_info *); |
34 | static void isdn_tty_check_esc(const u_char *, u_char, int, int *, u_long *); | |
35 | static void isdn_tty_modem_reset_regs(modem_info *, int); | |
36 | static void isdn_tty_cmd_ATA(modem_info *); | |
37 | static void isdn_tty_flush_buffer(struct tty_struct *); | |
38 | static void isdn_tty_modem_result(int, modem_info *); | |
39 | #ifdef CONFIG_ISDN_AUDIO | |
40 | static int isdn_tty_countDLE(unsigned char *, int); | |
41 | #endif | |
42 | ||
43 | /* Leave this unchanged unless you know what you do! */ | |
44 | #define MODEM_PARANOIA_CHECK | |
45 | #define MODEM_DO_RESTART | |
46 | ||
47 | static int bit2si[8] = | |
48 | {1, 5, 7, 7, 7, 7, 7, 7}; | |
49 | static int si2bit[8] = | |
50 | {4, 1, 4, 4, 4, 4, 4, 4}; | |
51 | ||
1da177e4 LT |
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 | |
475be4d8 | 62 | isdn_tty_try_read(modem_info *info, struct sk_buff *skb) |
1da177e4 | 63 | { |
227434f8 | 64 | struct tty_port *port = &info->port; |
1da177e4 LT |
65 | int c; |
66 | int len; | |
33f0f88f | 67 | char last; |
1da177e4 | 68 | |
37630f40 JS |
69 | if (!info->online) |
70 | return 0; | |
71 | ||
37630f40 JS |
72 | if (!(info->mcr & UART_MCR_RTS)) |
73 | return 0; | |
74 | ||
75 | len = skb->len | |
1da177e4 | 76 | #ifdef CONFIG_ISDN_AUDIO |
37630f40 | 77 | + ISDN_AUDIO_SKB_DLECOUNT(skb) |
1da177e4 | 78 | #endif |
37630f40 JS |
79 | ; |
80 | ||
227434f8 | 81 | c = tty_buffer_request_room(port, len); |
37630f40 JS |
82 | if (c < len) |
83 | return 0; | |
33f0f88f | 84 | |
1da177e4 | 85 | #ifdef CONFIG_ISDN_AUDIO |
37630f40 JS |
86 | if (ISDN_AUDIO_SKB_DLECOUNT(skb)) { |
87 | int l = skb->len; | |
88 | unsigned char *dp = skb->data; | |
89 | while (--l) { | |
90 | if (*dp == DLE) | |
92a19f9c JS |
91 | tty_insert_flip_char(port, DLE, 0); |
92 | tty_insert_flip_char(port, *dp++, 0); | |
37630f40 JS |
93 | } |
94 | if (*dp == DLE) | |
92a19f9c | 95 | tty_insert_flip_char(port, DLE, 0); |
37630f40 JS |
96 | last = *dp; |
97 | } else { | |
1da177e4 | 98 | #endif |
37630f40 | 99 | if (len > 1) |
05c7cd39 | 100 | tty_insert_flip_string(port, skb->data, len - 1); |
37630f40 JS |
101 | last = skb->data[len - 1]; |
102 | #ifdef CONFIG_ISDN_AUDIO | |
1da177e4 | 103 | } |
37630f40 JS |
104 | #endif |
105 | if (info->emu.mdmreg[REG_CPPP] & BIT_CPPP) | |
92a19f9c | 106 | tty_insert_flip_char(port, last, 0xFF); |
37630f40 | 107 | else |
92a19f9c | 108 | tty_insert_flip_char(port, last, TTY_NORMAL); |
2e124b4a | 109 | tty_flip_buffer_push(port); |
37630f40 JS |
110 | kfree_skb(skb); |
111 | ||
112 | return 1; | |
1da177e4 LT |
113 | } |
114 | ||
115 | /* isdn_tty_readmodem() is called periodically from within timer-interrupt. | |
116 | * It tries getting received data from the receive queue an stuff it into | |
117 | * the tty's flip-buffer. | |
118 | */ | |
119 | void | |
120 | isdn_tty_readmodem(void) | |
121 | { | |
122 | int resched = 0; | |
123 | int midx; | |
124 | int i; | |
1da177e4 | 125 | int r; |
1da177e4 LT |
126 | modem_info *info; |
127 | ||
128 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
37630f40 JS |
129 | midx = dev->m_idx[i]; |
130 | if (midx < 0) | |
131 | continue; | |
132 | ||
133 | info = &dev->mdm.info[midx]; | |
134 | if (!info->online) | |
135 | continue; | |
136 | ||
137 | r = 0; | |
1da177e4 | 138 | #ifdef CONFIG_ISDN_AUDIO |
37630f40 JS |
139 | isdn_audio_eval_dtmf(info); |
140 | if ((info->vonline & 1) && (info->emu.vpar[1])) | |
141 | isdn_audio_eval_silence(info); | |
142 | #endif | |
2e124b4a JS |
143 | if (info->mcr & UART_MCR_RTS) { |
144 | /* CISCO AsyncPPP Hack */ | |
145 | if (!(info->emu.mdmreg[REG_CPPP] & BIT_CPPP)) | |
146 | r = isdn_readbchan_tty(info->isdn_driver, | |
147 | info->isdn_channel, | |
148 | &info->port, 0); | |
149 | else | |
150 | r = isdn_readbchan_tty(info->isdn_driver, | |
151 | info->isdn_channel, | |
152 | &info->port, 1); | |
153 | if (r) | |
154 | tty_flip_buffer_push(&info->port); | |
37630f40 JS |
155 | } else |
156 | r = 1; | |
2e124b4a | 157 | |
37630f40 JS |
158 | if (r) { |
159 | info->rcvsched = 0; | |
160 | resched = 1; | |
161 | } else | |
162 | info->rcvsched = 1; | |
1da177e4 LT |
163 | } |
164 | if (!resched) | |
165 | isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 0); | |
166 | } | |
167 | ||
168 | int | |
169 | isdn_tty_rcv_skb(int i, int di, int channel, struct sk_buff *skb) | |
170 | { | |
171 | ulong flags; | |
172 | int midx; | |
173 | #ifdef CONFIG_ISDN_AUDIO | |
174 | int ifmt; | |
175 | #endif | |
176 | modem_info *info; | |
177 | ||
178 | if ((midx = dev->m_idx[i]) < 0) { | |
179 | /* if midx is invalid, packet is not for tty */ | |
180 | return 0; | |
181 | } | |
182 | info = &dev->mdm.info[midx]; | |
183 | #ifdef CONFIG_ISDN_AUDIO | |
184 | ifmt = 1; | |
475be4d8 | 185 | |
1da177e4 LT |
186 | if ((info->vonline) && (!info->emu.vpar[4])) |
187 | isdn_audio_calc_dtmf(info, skb->data, skb->len, ifmt); | |
188 | if ((info->vonline & 1) && (info->emu.vpar[1])) | |
189 | isdn_audio_calc_silence(info, skb->data, skb->len, ifmt); | |
190 | #endif | |
191 | if ((info->online < 2) | |
192 | #ifdef CONFIG_ISDN_AUDIO | |
193 | && (!(info->vonline & 1)) | |
194 | #endif | |
195 | ) { | |
196 | /* If Modem not listening, drop data */ | |
197 | kfree_skb(skb); | |
198 | return 1; | |
199 | } | |
200 | if (info->emu.mdmreg[REG_T70] & BIT_T70) { | |
201 | if (info->emu.mdmreg[REG_T70] & BIT_T70_EXT) { | |
202 | /* T.70 decoding: throw away the T.70 header (2 or 4 bytes) */ | |
203 | if (skb->data[0] == 3) /* pure data packet -> 4 byte headers */ | |
204 | skb_pull(skb, 4); | |
205 | else | |
206 | if (skb->data[0] == 1) /* keepalive packet -> 2 byte hdr */ | |
207 | skb_pull(skb, 2); | |
208 | } else | |
209 | /* T.70 decoding: Simply throw away the T.70 header (4 bytes) */ | |
210 | if ((skb->data[0] == 1) && ((skb->data[1] == 0) || (skb->data[1] == 1))) | |
211 | skb_pull(skb, 4); | |
212 | } | |
213 | #ifdef CONFIG_ISDN_AUDIO | |
214 | ISDN_AUDIO_SKB_DLECOUNT(skb) = 0; | |
215 | ISDN_AUDIO_SKB_LOCK(skb) = 0; | |
216 | if (info->vonline & 1) { | |
217 | /* voice conversion/compression */ | |
218 | switch (info->emu.vpar[3]) { | |
475be4d8 JP |
219 | case 2: |
220 | case 3: | |
221 | case 4: | |
222 | /* adpcm | |
223 | * Since compressed data takes less | |
224 | * space, we can overwrite the buffer. | |
225 | */ | |
226 | skb_trim(skb, isdn_audio_xlaw2adpcm(info->adpcmr, | |
227 | ifmt, | |
228 | skb->data, | |
229 | skb->data, | |
230 | skb->len)); | |
231 | break; | |
232 | case 5: | |
233 | /* a-law */ | |
234 | if (!ifmt) | |
235 | isdn_audio_ulaw2alaw(skb->data, skb->len); | |
236 | break; | |
237 | case 6: | |
238 | /* u-law */ | |
239 | if (ifmt) | |
240 | isdn_audio_alaw2ulaw(skb->data, skb->len); | |
241 | break; | |
1da177e4 LT |
242 | } |
243 | ISDN_AUDIO_SKB_DLECOUNT(skb) = | |
244 | isdn_tty_countDLE(skb->data, skb->len); | |
245 | } | |
246 | #ifdef CONFIG_ISDN_TTY_FAX | |
247 | else { | |
248 | if (info->faxonline & 2) { | |
249 | isdn_tty_fax_bitorder(info, skb); | |
250 | ISDN_AUDIO_SKB_DLECOUNT(skb) = | |
251 | isdn_tty_countDLE(skb->data, skb->len); | |
252 | } | |
253 | } | |
254 | #endif | |
255 | #endif | |
33f0f88f | 256 | /* Try to deliver directly via tty-buf if queue is empty */ |
1da177e4 LT |
257 | spin_lock_irqsave(&info->readlock, flags); |
258 | if (skb_queue_empty(&dev->drv[di]->rpqueue[channel])) | |
259 | if (isdn_tty_try_read(info, skb)) { | |
260 | spin_unlock_irqrestore(&info->readlock, flags); | |
261 | return 1; | |
262 | } | |
263 | /* Direct deliver failed or queue wasn't empty. | |
264 | * Queue up for later dequeueing via timer-irq. | |
265 | */ | |
266 | __skb_queue_tail(&dev->drv[di]->rpqueue[channel], skb); | |
267 | dev->drv[di]->rcvcount[channel] += | |
268 | (skb->len | |
269 | #ifdef CONFIG_ISDN_AUDIO | |
270 | + ISDN_AUDIO_SKB_DLECOUNT(skb) | |
271 | #endif | |
272 | ); | |
273 | spin_unlock_irqrestore(&info->readlock, flags); | |
274 | /* Schedule dequeuing */ | |
275 | if ((dev->modempoll) && (info->rcvsched)) | |
276 | isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1); | |
277 | return 1; | |
278 | } | |
279 | ||
3e206b0a | 280 | static void |
475be4d8 | 281 | isdn_tty_cleanup_xmit(modem_info *info) |
1da177e4 LT |
282 | { |
283 | skb_queue_purge(&info->xmit_queue); | |
284 | #ifdef CONFIG_ISDN_AUDIO | |
285 | skb_queue_purge(&info->dtmf_queue); | |
286 | #endif | |
287 | } | |
288 | ||
289 | static void | |
475be4d8 | 290 | isdn_tty_tint(modem_info *info) |
1da177e4 LT |
291 | { |
292 | struct sk_buff *skb = skb_dequeue(&info->xmit_queue); | |
293 | int len, slen; | |
294 | ||
295 | if (!skb) | |
296 | return; | |
297 | len = skb->len; | |
298 | if ((slen = isdn_writebuf_skb_stub(info->isdn_driver, | |
299 | info->isdn_channel, 1, skb)) == len) { | |
ba43294d | 300 | struct tty_struct *tty = info->port.tty; |
1da177e4 LT |
301 | info->send_outstanding++; |
302 | info->msr &= ~UART_MSR_CTS; | |
303 | info->lsr &= ~UART_LSR_TEMT; | |
304 | tty_wakeup(tty); | |
305 | return; | |
306 | } | |
307 | if (slen < 0) { | |
308 | /* Error: no channel, already shutdown, or wrong parameter */ | |
309 | dev_kfree_skb(skb); | |
310 | return; | |
311 | } | |
312 | skb_queue_head(&info->xmit_queue, skb); | |
313 | } | |
314 | ||
315 | #ifdef CONFIG_ISDN_AUDIO | |
316 | static int | |
317 | isdn_tty_countDLE(unsigned char *buf, int len) | |
318 | { | |
319 | int count = 0; | |
320 | ||
321 | while (len--) | |
322 | if (*buf++ == DLE) | |
323 | count++; | |
324 | return count; | |
325 | } | |
326 | ||
327 | /* This routine is called from within isdn_tty_write() to perform | |
328 | * DLE-decoding when sending audio-data. | |
329 | */ | |
330 | static int | |
475be4d8 | 331 | isdn_tty_handleDLEdown(modem_info *info, atemu *m, int len) |
1da177e4 | 332 | { |
82e46b31 | 333 | unsigned char *p = &info->port.xmit_buf[info->xmit_count]; |
1da177e4 LT |
334 | int count = 0; |
335 | ||
336 | while (len > 0) { | |
337 | if (m->lastDLE) { | |
338 | m->lastDLE = 0; | |
339 | switch (*p) { | |
475be4d8 JP |
340 | case DLE: |
341 | /* Escape code */ | |
342 | if (len > 1) | |
343 | memmove(p, p + 1, len - 1); | |
344 | p--; | |
345 | count++; | |
346 | break; | |
347 | case ETX: | |
348 | /* End of data */ | |
349 | info->vonline |= 4; | |
350 | return count; | |
351 | case DC4: | |
352 | /* Abort RX */ | |
353 | info->vonline &= ~1; | |
1da177e4 | 354 | #ifdef ISDN_DEBUG_MODEM_VOICE |
475be4d8 JP |
355 | printk(KERN_DEBUG |
356 | "DLEdown: got DLE-DC4, send DLE-ETX on ttyI%d\n", | |
357 | info->line); | |
1da177e4 | 358 | #endif |
475be4d8 JP |
359 | isdn_tty_at_cout("\020\003", info); |
360 | if (!info->vonline) { | |
1da177e4 | 361 | #ifdef ISDN_DEBUG_MODEM_VOICE |
475be4d8 JP |
362 | printk(KERN_DEBUG |
363 | "DLEdown: send VCON on ttyI%d\n", | |
364 | info->line); | |
1da177e4 | 365 | #endif |
475be4d8 JP |
366 | isdn_tty_at_cout("\r\nVCON\r\n", info); |
367 | } | |
368 | /* Fall through */ | |
369 | case 'q': | |
370 | case 's': | |
371 | /* Silence */ | |
372 | if (len > 1) | |
373 | memmove(p, p + 1, len - 1); | |
374 | p--; | |
375 | break; | |
1da177e4 LT |
376 | } |
377 | } else { | |
378 | if (*p == DLE) | |
379 | m->lastDLE = 1; | |
380 | else | |
381 | count++; | |
382 | } | |
383 | p++; | |
384 | len--; | |
385 | } | |
386 | if (len < 0) { | |
387 | printk(KERN_WARNING "isdn_tty: len<0 in DLEdown\n"); | |
388 | return 0; | |
389 | } | |
390 | return count; | |
391 | } | |
392 | ||
393 | /* This routine is called from within isdn_tty_write() when receiving | |
394 | * audio-data. It interrupts receiving, if an character other than | |
395 | * ^S or ^Q is sent. | |
396 | */ | |
397 | static int | |
398 | isdn_tty_end_vrx(const char *buf, int c) | |
399 | { | |
400 | char ch; | |
401 | ||
402 | while (c--) { | |
403 | ch = *buf; | |
404 | if ((ch != 0x11) && (ch != 0x13)) | |
405 | return 1; | |
406 | buf++; | |
407 | } | |
408 | return 0; | |
409 | } | |
410 | ||
411 | static int voice_cf[7] = | |
412 | {0, 0, 4, 3, 2, 0, 0}; | |
413 | ||
414 | #endif /* CONFIG_ISDN_AUDIO */ | |
415 | ||
416 | /* isdn_tty_senddown() is called either directly from within isdn_tty_write() | |
417 | * or via timer-interrupt from within isdn_tty_modem_xmit(). It pulls | |
418 | * outgoing data from the tty's xmit-buffer, handles voice-decompression or | |
419 | * T.70 if necessary, and finally queues it up for sending via isdn_tty_tint. | |
420 | */ | |
421 | static void | |
475be4d8 | 422 | isdn_tty_senddown(modem_info *info) |
1da177e4 LT |
423 | { |
424 | int buflen; | |
425 | int skb_res; | |
426 | #ifdef CONFIG_ISDN_AUDIO | |
427 | int audio_len; | |
428 | #endif | |
429 | struct sk_buff *skb; | |
430 | ||
431 | #ifdef CONFIG_ISDN_AUDIO | |
432 | if (info->vonline & 4) { | |
433 | info->vonline &= ~6; | |
434 | if (!info->vonline) { | |
435 | #ifdef ISDN_DEBUG_MODEM_VOICE | |
436 | printk(KERN_DEBUG | |
437 | "senddown: send VCON on ttyI%d\n", | |
438 | info->line); | |
439 | #endif | |
440 | isdn_tty_at_cout("\r\nVCON\r\n", info); | |
441 | } | |
442 | } | |
443 | #endif | |
444 | if (!(buflen = info->xmit_count)) | |
445 | return; | |
475be4d8 | 446 | if ((info->emu.mdmreg[REG_CTS] & BIT_CTS) != 0) |
1da177e4 | 447 | info->msr &= ~UART_MSR_CTS; |
475be4d8 | 448 | info->lsr &= ~UART_LSR_TEMT; |
1da177e4 LT |
449 | /* info->xmit_count is modified here and in isdn_tty_write(). |
450 | * So we return here if isdn_tty_write() is in the | |
451 | * critical section. | |
452 | */ | |
453 | atomic_inc(&info->xmit_lock); | |
454 | if (!(atomic_dec_and_test(&info->xmit_lock))) | |
455 | return; | |
456 | if (info->isdn_driver < 0) { | |
457 | info->xmit_count = 0; | |
458 | return; | |
459 | } | |
460 | skb_res = dev->drv[info->isdn_driver]->interface->hl_hdrlen + 4; | |
461 | #ifdef CONFIG_ISDN_AUDIO | |
462 | if (info->vonline & 2) | |
463 | audio_len = buflen * voice_cf[info->emu.vpar[3]]; | |
464 | else | |
465 | audio_len = 0; | |
466 | skb = dev_alloc_skb(skb_res + buflen + audio_len); | |
467 | #else | |
468 | skb = dev_alloc_skb(skb_res + buflen); | |
469 | #endif | |
470 | if (!skb) { | |
471 | printk(KERN_WARNING | |
472 | "isdn_tty: Out of memory in ttyI%d senddown\n", | |
473 | info->line); | |
474 | return; | |
475 | } | |
476 | skb_reserve(skb, skb_res); | |
59ae1d12 | 477 | skb_put_data(skb, info->port.xmit_buf, buflen); |
1da177e4 LT |
478 | info->xmit_count = 0; |
479 | #ifdef CONFIG_ISDN_AUDIO | |
480 | if (info->vonline & 2) { | |
481 | /* For now, ifmt is fixed to 1 (alaw), since this | |
482 | * is used with ISDN everywhere in the world, except | |
483 | * US, Canada and Japan. | |
484 | * Later, when US-ISDN protocols are implemented, | |
485 | * this setting will depend on the D-channel protocol. | |
486 | */ | |
487 | int ifmt = 1; | |
488 | ||
489 | /* voice conversion/decompression */ | |
490 | switch (info->emu.vpar[3]) { | |
475be4d8 JP |
491 | case 2: |
492 | case 3: | |
493 | case 4: | |
494 | /* adpcm, compatible to ZyXel 1496 modem | |
495 | * with ROM revision 6.01 | |
496 | */ | |
497 | audio_len = isdn_audio_adpcm2xlaw(info->adpcms, | |
498 | ifmt, | |
499 | skb->data, | |
500 | skb_put(skb, audio_len), | |
501 | buflen); | |
502 | skb_pull(skb, buflen); | |
503 | skb_trim(skb, audio_len); | |
504 | break; | |
505 | case 5: | |
506 | /* a-law */ | |
507 | if (!ifmt) | |
508 | isdn_audio_alaw2ulaw(skb->data, | |
509 | buflen); | |
510 | break; | |
511 | case 6: | |
512 | /* u-law */ | |
513 | if (ifmt) | |
514 | isdn_audio_ulaw2alaw(skb->data, | |
515 | buflen); | |
516 | break; | |
1da177e4 LT |
517 | } |
518 | } | |
519 | #endif /* CONFIG_ISDN_AUDIO */ | |
520 | if (info->emu.mdmreg[REG_T70] & BIT_T70) { | |
521 | /* Add T.70 simplified header */ | |
522 | if (info->emu.mdmreg[REG_T70] & BIT_T70_EXT) | |
523 | memcpy(skb_push(skb, 2), "\1\0", 2); | |
524 | else | |
525 | memcpy(skb_push(skb, 4), "\1\0\1\0", 4); | |
526 | } | |
527 | skb_queue_tail(&info->xmit_queue, skb); | |
528 | } | |
529 | ||
530 | /************************************************************ | |
531 | * | |
532 | * Modem-functions | |
533 | * | |
534 | * mostly "stolen" from original Linux-serial.c and friends. | |
535 | * | |
536 | ************************************************************/ | |
537 | ||
538 | /* The next routine is called once from within timer-interrupt | |
539 | * triggered within isdn_tty_modem_ncarrier(). It calls | |
540 | * isdn_tty_modem_result() to stuff a "NO CARRIER" Message | |
33f0f88f | 541 | * into the tty's buffer. |
1da177e4 LT |
542 | */ |
543 | static void | |
e99e88a9 | 544 | isdn_tty_modem_do_ncarrier(struct timer_list *t) |
1da177e4 | 545 | { |
e99e88a9 | 546 | modem_info *info = from_timer(info, t, nc_timer); |
1da177e4 LT |
547 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); |
548 | } | |
549 | ||
550 | /* Next routine is called, whenever the DTR-signal is raised. | |
551 | * It checks the ncarrier-flag, and triggers the above routine | |
552 | * when necessary. The ncarrier-flag is set, whenever DTR goes | |
553 | * low. | |
554 | */ | |
555 | static void | |
475be4d8 | 556 | isdn_tty_modem_ncarrier(modem_info *info) |
1da177e4 LT |
557 | { |
558 | if (info->ncarrier) { | |
559 | info->nc_timer.expires = jiffies + HZ; | |
560 | add_timer(&info->nc_timer); | |
561 | } | |
562 | } | |
563 | ||
564 | /* | |
565 | * return the usage calculated by si and layer 2 protocol | |
566 | */ | |
3e206b0a | 567 | static int |
1da177e4 LT |
568 | isdn_calc_usage(int si, int l2) |
569 | { | |
570 | int usg = ISDN_USAGE_MODEM; | |
571 | ||
572 | #ifdef CONFIG_ISDN_AUDIO | |
573 | if (si == 1) { | |
475be4d8 JP |
574 | switch (l2) { |
575 | case ISDN_PROTO_L2_MODEM: | |
576 | usg = ISDN_USAGE_MODEM; | |
577 | break; | |
1da177e4 | 578 | #ifdef CONFIG_ISDN_TTY_FAX |
475be4d8 JP |
579 | case ISDN_PROTO_L2_FAX: |
580 | usg = ISDN_USAGE_FAX; | |
581 | break; | |
1da177e4 | 582 | #endif |
475be4d8 JP |
583 | case ISDN_PROTO_L2_TRANS: |
584 | default: | |
585 | usg = ISDN_USAGE_VOICE; | |
586 | break; | |
1da177e4 LT |
587 | } |
588 | } | |
589 | #endif | |
475be4d8 | 590 | return (usg); |
1da177e4 LT |
591 | } |
592 | ||
593 | /* isdn_tty_dial() performs dialing of a tty an the necessary | |
594 | * setup of the lower levels before that. | |
595 | */ | |
596 | static void | |
475be4d8 | 597 | isdn_tty_dial(char *n, modem_info *info, atemu *m) |
1da177e4 LT |
598 | { |
599 | int usg = ISDN_USAGE_MODEM; | |
600 | int si = 7; | |
601 | int l2 = m->mdmreg[REG_L2PROT]; | |
602 | u_long flags; | |
603 | isdn_ctrl cmd; | |
604 | int i; | |
605 | int j; | |
606 | ||
607 | for (j = 7; j >= 0; j--) | |
608 | if (m->mdmreg[REG_SI1] & (1 << j)) { | |
609 | si = bit2si[j]; | |
610 | break; | |
611 | } | |
612 | usg = isdn_calc_usage(si, l2); | |
613 | #ifdef CONFIG_ISDN_AUDIO | |
475be4d8 JP |
614 | if ((si == 1) && |
615 | (l2 != ISDN_PROTO_L2_MODEM) | |
1da177e4 | 616 | #ifdef CONFIG_ISDN_TTY_FAX |
475be4d8 | 617 | && (l2 != ISDN_PROTO_L2_FAX) |
1da177e4 LT |
618 | #endif |
619 | ) { | |
620 | l2 = ISDN_PROTO_L2_TRANS; | |
621 | usg = ISDN_USAGE_VOICE; | |
622 | } | |
623 | #endif | |
624 | m->mdmreg[REG_SI1I] = si2bit[si]; | |
625 | spin_lock_irqsave(&dev->lock, flags); | |
626 | i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn); | |
627 | if (i < 0) { | |
628 | spin_unlock_irqrestore(&dev->lock, flags); | |
629 | isdn_tty_modem_result(RESULT_NO_DIALTONE, info); | |
630 | } else { | |
631 | info->isdn_driver = dev->drvmap[i]; | |
632 | info->isdn_channel = dev->chanmap[i]; | |
633 | info->drv_index = i; | |
634 | dev->m_idx[i] = info->line; | |
635 | dev->usage[i] |= ISDN_USAGE_OUTGOING; | |
636 | info->last_dir = 1; | |
637 | strcpy(info->last_num, n); | |
638 | isdn_info_update(); | |
639 | spin_unlock_irqrestore(&dev->lock, flags); | |
640 | cmd.driver = info->isdn_driver; | |
641 | cmd.arg = info->isdn_channel; | |
642 | cmd.command = ISDN_CMD_CLREAZ; | |
643 | isdn_command(&cmd); | |
644 | strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver)); | |
645 | cmd.driver = info->isdn_driver; | |
646 | cmd.command = ISDN_CMD_SETEAZ; | |
647 | isdn_command(&cmd); | |
648 | cmd.driver = info->isdn_driver; | |
649 | cmd.command = ISDN_CMD_SETL2; | |
650 | info->last_l2 = l2; | |
651 | cmd.arg = info->isdn_channel + (l2 << 8); | |
652 | isdn_command(&cmd); | |
653 | cmd.driver = info->isdn_driver; | |
654 | cmd.command = ISDN_CMD_SETL3; | |
655 | cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); | |
656 | #ifdef CONFIG_ISDN_TTY_FAX | |
657 | if (l2 == ISDN_PROTO_L2_FAX) { | |
658 | cmd.parm.fax = info->fax; | |
659 | info->fax->direction = ISDN_TTY_FAX_CONN_OUT; | |
660 | } | |
661 | #endif | |
662 | isdn_command(&cmd); | |
663 | cmd.driver = info->isdn_driver; | |
664 | cmd.arg = info->isdn_channel; | |
665 | sprintf(cmd.parm.setup.phone, "%s", n); | |
666 | sprintf(cmd.parm.setup.eazmsn, "%s", | |
667 | isdn_map_eaz2msn(m->msn, info->isdn_driver)); | |
668 | cmd.parm.setup.si1 = si; | |
669 | cmd.parm.setup.si2 = m->mdmreg[REG_SI2]; | |
670 | cmd.command = ISDN_CMD_DIAL; | |
671 | info->dialing = 1; | |
672 | info->emu.carrierwait = 0; | |
673 | strcpy(dev->num[i], n); | |
674 | isdn_info_update(); | |
675 | isdn_command(&cmd); | |
676 | isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1); | |
677 | } | |
678 | } | |
679 | ||
680 | /* isdn_tty_hangup() disassociates a tty from the real | |
681 | * ISDN-line (hangup). The usage-status is cleared | |
682 | * and some cleanup is done also. | |
683 | */ | |
684 | void | |
475be4d8 | 685 | isdn_tty_modem_hup(modem_info *info, int local) |
1da177e4 LT |
686 | { |
687 | isdn_ctrl cmd; | |
688 | int di, ch; | |
689 | ||
690 | if (!info) | |
691 | return; | |
692 | ||
693 | di = info->isdn_driver; | |
694 | ch = info->isdn_channel; | |
695 | if (di < 0 || ch < 0) | |
696 | return; | |
697 | ||
698 | info->isdn_driver = -1; | |
699 | info->isdn_channel = -1; | |
700 | ||
701 | #ifdef ISDN_DEBUG_MODEM_HUP | |
702 | printk(KERN_DEBUG "Mhup ttyI%d\n", info->line); | |
703 | #endif | |
704 | info->rcvsched = 0; | |
ba43294d | 705 | isdn_tty_flush_buffer(info->port.tty); |
1da177e4 LT |
706 | if (info->online) { |
707 | info->last_lhup = local; | |
708 | info->online = 0; | |
709 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
710 | } | |
711 | #ifdef CONFIG_ISDN_AUDIO | |
712 | info->vonline = 0; | |
713 | #ifdef CONFIG_ISDN_TTY_FAX | |
714 | info->faxonline = 0; | |
715 | info->fax->phase = ISDN_FAX_PHASE_IDLE; | |
716 | #endif | |
717 | info->emu.vpar[4] = 0; | |
718 | info->emu.vpar[5] = 8; | |
3c7208f2 JJ |
719 | kfree(info->dtmf_state); |
720 | info->dtmf_state = NULL; | |
721 | kfree(info->silence_state); | |
722 | info->silence_state = NULL; | |
723 | kfree(info->adpcms); | |
724 | info->adpcms = NULL; | |
725 | kfree(info->adpcmr); | |
726 | info->adpcmr = NULL; | |
1da177e4 LT |
727 | #endif |
728 | if ((info->msr & UART_MSR_RI) && | |
475be4d8 | 729 | (info->emu.mdmreg[REG_RUNG] & BIT_RUNG)) |
1da177e4 LT |
730 | isdn_tty_modem_result(RESULT_RUNG, info); |
731 | info->msr &= ~(UART_MSR_DCD | UART_MSR_RI); | |
732 | info->lsr |= UART_LSR_TEMT; | |
733 | ||
734 | if (local) { | |
735 | cmd.driver = di; | |
736 | cmd.command = ISDN_CMD_HANGUP; | |
737 | cmd.arg = ch; | |
738 | isdn_command(&cmd); | |
739 | } | |
740 | ||
741 | isdn_all_eaz(di, ch); | |
742 | info->emu.mdmreg[REG_RINGCNT] = 0; | |
743 | isdn_free_channel(di, ch, 0); | |
744 | ||
745 | if (info->drv_index >= 0) { | |
746 | dev->m_idx[info->drv_index] = -1; | |
747 | info->drv_index = -1; | |
748 | } | |
749 | } | |
750 | ||
751 | /* | |
475be4d8 | 752 | * Begin of a CAPI like interface, currently used only for |
1da177e4 LT |
753 | * supplementary service (CAPI 2.0 part III) |
754 | */ | |
755 | #include <linux/isdn/capicmd.h> | |
07a97fe8 | 756 | #include <linux/module.h> |
1da177e4 LT |
757 | |
758 | int | |
759 | isdn_tty_capi_facility(capi_msg *cm) { | |
475be4d8 | 760 | return (-1); /* dummy */ |
1da177e4 LT |
761 | } |
762 | ||
763 | /* isdn_tty_suspend() tries to suspend the current tty connection | |
764 | */ | |
765 | static void | |
475be4d8 | 766 | isdn_tty_suspend(char *id, modem_info *info, atemu *m) |
1da177e4 LT |
767 | { |
768 | isdn_ctrl cmd; | |
475be4d8 | 769 | |
1da177e4 LT |
770 | int l; |
771 | ||
772 | if (!info) | |
773 | return; | |
774 | ||
775 | #ifdef ISDN_DEBUG_MODEM_SERVICES | |
776 | printk(KERN_DEBUG "Msusp ttyI%d\n", info->line); | |
777 | #endif | |
778 | l = strlen(id); | |
779 | if ((info->isdn_driver >= 0)) { | |
475be4d8 | 780 | cmd.parm.cmsg.Length = l + 18; |
1da177e4 LT |
781 | cmd.parm.cmsg.Command = CAPI_FACILITY; |
782 | cmd.parm.cmsg.Subcommand = CAPI_REQ; | |
783 | cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1; | |
784 | cmd.parm.cmsg.para[0] = 3; /* 16 bit 0x0003 suplementary service */ | |
785 | cmd.parm.cmsg.para[1] = 0; | |
786 | cmd.parm.cmsg.para[2] = l + 3; | |
787 | cmd.parm.cmsg.para[3] = 4; /* 16 bit 0x0004 Suspend */ | |
788 | cmd.parm.cmsg.para[4] = 0; | |
789 | cmd.parm.cmsg.para[5] = l; | |
414372f6 | 790 | memcpy(&cmd.parm.cmsg.para[6], id, l); |
1da177e4 LT |
791 | cmd.command = CAPI_PUT_MESSAGE; |
792 | cmd.driver = info->isdn_driver; | |
793 | cmd.arg = info->isdn_channel; | |
794 | isdn_command(&cmd); | |
795 | } | |
796 | } | |
797 | ||
798 | /* isdn_tty_resume() tries to resume a suspended call | |
25985edc | 799 | * setup of the lower levels before that. unfortunately here is no |
1da177e4 LT |
800 | * checking for compatibility of used protocols implemented by Q931 |
801 | * It does the same things like isdn_tty_dial, the last command | |
802 | * is different, may be we can merge it. | |
803 | */ | |
804 | ||
805 | static void | |
475be4d8 | 806 | isdn_tty_resume(char *id, modem_info *info, atemu *m) |
1da177e4 LT |
807 | { |
808 | int usg = ISDN_USAGE_MODEM; | |
809 | int si = 7; | |
810 | int l2 = m->mdmreg[REG_L2PROT]; | |
811 | isdn_ctrl cmd; | |
812 | ulong flags; | |
813 | int i; | |
814 | int j; | |
815 | int l; | |
816 | ||
817 | l = strlen(id); | |
818 | for (j = 7; j >= 0; j--) | |
819 | if (m->mdmreg[REG_SI1] & (1 << j)) { | |
820 | si = bit2si[j]; | |
821 | break; | |
822 | } | |
823 | usg = isdn_calc_usage(si, l2); | |
824 | #ifdef CONFIG_ISDN_AUDIO | |
475be4d8 JP |
825 | if ((si == 1) && |
826 | (l2 != ISDN_PROTO_L2_MODEM) | |
1da177e4 | 827 | #ifdef CONFIG_ISDN_TTY_FAX |
475be4d8 | 828 | && (l2 != ISDN_PROTO_L2_FAX) |
1da177e4 LT |
829 | #endif |
830 | ) { | |
831 | l2 = ISDN_PROTO_L2_TRANS; | |
832 | usg = ISDN_USAGE_VOICE; | |
833 | } | |
834 | #endif | |
835 | m->mdmreg[REG_SI1I] = si2bit[si]; | |
836 | spin_lock_irqsave(&dev->lock, flags); | |
837 | i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn); | |
838 | if (i < 0) { | |
839 | spin_unlock_irqrestore(&dev->lock, flags); | |
840 | isdn_tty_modem_result(RESULT_NO_DIALTONE, info); | |
841 | } else { | |
842 | info->isdn_driver = dev->drvmap[i]; | |
843 | info->isdn_channel = dev->chanmap[i]; | |
844 | info->drv_index = i; | |
845 | dev->m_idx[i] = info->line; | |
846 | dev->usage[i] |= ISDN_USAGE_OUTGOING; | |
847 | info->last_dir = 1; | |
848 | // strcpy(info->last_num, n); | |
849 | isdn_info_update(); | |
850 | spin_unlock_irqrestore(&dev->lock, flags); | |
851 | cmd.driver = info->isdn_driver; | |
852 | cmd.arg = info->isdn_channel; | |
853 | cmd.command = ISDN_CMD_CLREAZ; | |
854 | isdn_command(&cmd); | |
855 | strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver)); | |
856 | cmd.driver = info->isdn_driver; | |
857 | cmd.command = ISDN_CMD_SETEAZ; | |
858 | isdn_command(&cmd); | |
859 | cmd.driver = info->isdn_driver; | |
860 | cmd.command = ISDN_CMD_SETL2; | |
861 | info->last_l2 = l2; | |
862 | cmd.arg = info->isdn_channel + (l2 << 8); | |
863 | isdn_command(&cmd); | |
864 | cmd.driver = info->isdn_driver; | |
865 | cmd.command = ISDN_CMD_SETL3; | |
866 | cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); | |
867 | isdn_command(&cmd); | |
868 | cmd.driver = info->isdn_driver; | |
869 | cmd.arg = info->isdn_channel; | |
475be4d8 | 870 | cmd.parm.cmsg.Length = l + 18; |
1da177e4 LT |
871 | cmd.parm.cmsg.Command = CAPI_FACILITY; |
872 | cmd.parm.cmsg.Subcommand = CAPI_REQ; | |
873 | cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1; | |
874 | cmd.parm.cmsg.para[0] = 3; /* 16 bit 0x0003 suplementary service */ | |
875 | cmd.parm.cmsg.para[1] = 0; | |
475be4d8 | 876 | cmd.parm.cmsg.para[2] = l + 3; |
1da177e4 LT |
877 | cmd.parm.cmsg.para[3] = 5; /* 16 bit 0x0005 Resume */ |
878 | cmd.parm.cmsg.para[4] = 0; | |
879 | cmd.parm.cmsg.para[5] = l; | |
414372f6 | 880 | memcpy(&cmd.parm.cmsg.para[6], id, l); |
475be4d8 | 881 | cmd.command = CAPI_PUT_MESSAGE; |
1da177e4 LT |
882 | info->dialing = 1; |
883 | // strcpy(dev->num[i], n); | |
884 | isdn_info_update(); | |
885 | isdn_command(&cmd); | |
886 | isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1); | |
887 | } | |
888 | } | |
889 | ||
890 | /* isdn_tty_send_msg() sends a message to a HL driver | |
891 | * This is used for hybrid modem cards to send AT commands to it | |
892 | */ | |
893 | ||
894 | static void | |
475be4d8 | 895 | isdn_tty_send_msg(modem_info *info, atemu *m, char *msg) |
1da177e4 LT |
896 | { |
897 | int usg = ISDN_USAGE_MODEM; | |
898 | int si = 7; | |
899 | int l2 = m->mdmreg[REG_L2PROT]; | |
900 | isdn_ctrl cmd; | |
901 | ulong flags; | |
902 | int i; | |
903 | int j; | |
904 | int l; | |
905 | ||
f3947936 CG |
906 | l = min(strlen(msg), sizeof(cmd.parm) - sizeof(cmd.parm.cmsg) |
907 | + sizeof(cmd.parm.cmsg.para) - 2); | |
908 | ||
1da177e4 LT |
909 | if (!l) { |
910 | isdn_tty_modem_result(RESULT_ERROR, info); | |
911 | return; | |
912 | } | |
913 | for (j = 7; j >= 0; j--) | |
914 | if (m->mdmreg[REG_SI1] & (1 << j)) { | |
915 | si = bit2si[j]; | |
916 | break; | |
917 | } | |
918 | usg = isdn_calc_usage(si, l2); | |
919 | #ifdef CONFIG_ISDN_AUDIO | |
475be4d8 JP |
920 | if ((si == 1) && |
921 | (l2 != ISDN_PROTO_L2_MODEM) | |
1da177e4 | 922 | #ifdef CONFIG_ISDN_TTY_FAX |
475be4d8 | 923 | && (l2 != ISDN_PROTO_L2_FAX) |
1da177e4 LT |
924 | #endif |
925 | ) { | |
926 | l2 = ISDN_PROTO_L2_TRANS; | |
927 | usg = ISDN_USAGE_VOICE; | |
928 | } | |
929 | #endif | |
930 | m->mdmreg[REG_SI1I] = si2bit[si]; | |
931 | spin_lock_irqsave(&dev->lock, flags); | |
932 | i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn); | |
933 | if (i < 0) { | |
934 | spin_unlock_irqrestore(&dev->lock, flags); | |
935 | isdn_tty_modem_result(RESULT_NO_DIALTONE, info); | |
936 | } else { | |
937 | info->isdn_driver = dev->drvmap[i]; | |
938 | info->isdn_channel = dev->chanmap[i]; | |
939 | info->drv_index = i; | |
940 | dev->m_idx[i] = info->line; | |
941 | dev->usage[i] |= ISDN_USAGE_OUTGOING; | |
942 | info->last_dir = 1; | |
943 | isdn_info_update(); | |
944 | spin_unlock_irqrestore(&dev->lock, flags); | |
945 | cmd.driver = info->isdn_driver; | |
946 | cmd.arg = info->isdn_channel; | |
947 | cmd.command = ISDN_CMD_CLREAZ; | |
948 | isdn_command(&cmd); | |
949 | strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver)); | |
950 | cmd.driver = info->isdn_driver; | |
951 | cmd.command = ISDN_CMD_SETEAZ; | |
952 | isdn_command(&cmd); | |
953 | cmd.driver = info->isdn_driver; | |
954 | cmd.command = ISDN_CMD_SETL2; | |
955 | info->last_l2 = l2; | |
956 | cmd.arg = info->isdn_channel + (l2 << 8); | |
957 | isdn_command(&cmd); | |
958 | cmd.driver = info->isdn_driver; | |
959 | cmd.command = ISDN_CMD_SETL3; | |
960 | cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); | |
961 | isdn_command(&cmd); | |
962 | cmd.driver = info->isdn_driver; | |
963 | cmd.arg = info->isdn_channel; | |
475be4d8 | 964 | cmd.parm.cmsg.Length = l + 14; |
1da177e4 LT |
965 | cmd.parm.cmsg.Command = CAPI_MANUFACTURER; |
966 | cmd.parm.cmsg.Subcommand = CAPI_REQ; | |
967 | cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1; | |
475be4d8 | 968 | cmd.parm.cmsg.para[0] = l + 1; |
1da177e4 | 969 | strncpy(&cmd.parm.cmsg.para[1], msg, l); |
475be4d8 JP |
970 | cmd.parm.cmsg.para[l + 1] = 0xd; |
971 | cmd.command = CAPI_PUT_MESSAGE; | |
1da177e4 LT |
972 | /* info->dialing = 1; |
973 | strcpy(dev->num[i], n); | |
974 | isdn_info_update(); | |
975 | */ | |
976 | isdn_command(&cmd); | |
977 | } | |
978 | } | |
979 | ||
980 | static inline int | |
981 | isdn_tty_paranoia_check(modem_info *info, char *name, const char *routine) | |
982 | { | |
983 | #ifdef MODEM_PARANOIA_CHECK | |
984 | if (!info) { | |
985 | printk(KERN_WARNING "isdn_tty: null info_struct for %s in %s\n", | |
475be4d8 | 986 | name, routine); |
1da177e4 LT |
987 | return 1; |
988 | } | |
989 | if (info->magic != ISDN_ASYNC_MAGIC) { | |
990 | printk(KERN_WARNING "isdn_tty: bad magic for modem struct %s in %s\n", | |
991 | name, routine); | |
992 | return 1; | |
993 | } | |
994 | #endif | |
995 | return 0; | |
996 | } | |
997 | ||
998 | /* | |
999 | * This routine is called to set the UART divisor registers to match | |
1000 | * the specified baud rate for a serial port. | |
1001 | */ | |
1002 | static void | |
475be4d8 | 1003 | isdn_tty_change_speed(modem_info *info) |
1da177e4 | 1004 | { |
265d6f00 | 1005 | struct tty_port *port = &info->port; |
1da177e4 | 1006 | uint cflag, |
475be4d8 JP |
1007 | cval, |
1008 | quot; | |
1da177e4 LT |
1009 | int i; |
1010 | ||
adc8d746 | 1011 | if (!port->tty) |
1da177e4 | 1012 | return; |
adc8d746 | 1013 | cflag = port->tty->termios.c_cflag; |
1da177e4 LT |
1014 | |
1015 | quot = i = cflag & CBAUD; | |
1016 | if (i & CBAUDEX) { | |
1017 | i &= ~CBAUDEX; | |
1018 | if (i < 1 || i > 2) | |
adc8d746 | 1019 | port->tty->termios.c_cflag &= ~CBAUDEX; |
1da177e4 LT |
1020 | else |
1021 | i += 15; | |
1022 | } | |
1023 | if (quot) { | |
1024 | info->mcr |= UART_MCR_DTR; | |
1025 | isdn_tty_modem_ncarrier(info); | |
1026 | } else { | |
1027 | info->mcr &= ~UART_MCR_DTR; | |
1028 | if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) { | |
1029 | #ifdef ISDN_DEBUG_MODEM_HUP | |
1030 | printk(KERN_DEBUG "Mhup in changespeed\n"); | |
1031 | #endif | |
1032 | if (info->online) | |
1033 | info->ncarrier = 1; | |
1034 | isdn_tty_modem_reset_regs(info, 0); | |
1035 | isdn_tty_modem_hup(info, 1); | |
1036 | } | |
1037 | return; | |
1038 | } | |
1039 | /* byte size and parity */ | |
1040 | cval = cflag & (CSIZE | CSTOPB); | |
1041 | cval >>= 4; | |
1042 | if (cflag & PARENB) | |
1043 | cval |= UART_LCR_PARITY; | |
1044 | if (!(cflag & PARODD)) | |
1045 | cval |= UART_LCR_EPAR; | |
1da177e4 | 1046 | |
2d68655d | 1047 | tty_port_set_check_carrier(port, ~cflag & CLOCAL); |
1da177e4 LT |
1048 | } |
1049 | ||
1050 | static int | |
475be4d8 | 1051 | isdn_tty_startup(modem_info *info) |
1da177e4 | 1052 | { |
d41861ca | 1053 | if (tty_port_initialized(&info->port)) |
1da177e4 LT |
1054 | return 0; |
1055 | isdn_lock_drivers(); | |
1056 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1057 | printk(KERN_DEBUG "starting up ttyi%d ...\n", info->line); | |
1058 | #endif | |
1059 | /* | |
1060 | * Now, initialize the UART | |
1061 | */ | |
1062 | info->mcr = UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2; | |
ba43294d JS |
1063 | if (info->port.tty) |
1064 | clear_bit(TTY_IO_ERROR, &info->port.tty->flags); | |
1da177e4 LT |
1065 | /* |
1066 | * and set the speed of the serial port | |
1067 | */ | |
1068 | isdn_tty_change_speed(info); | |
1069 | ||
d41861ca | 1070 | tty_port_set_initialized(&info->port, 1); |
1da177e4 LT |
1071 | info->msr |= (UART_MSR_DSR | UART_MSR_CTS); |
1072 | info->send_outstanding = 0; | |
1073 | return 0; | |
1074 | } | |
1075 | ||
1076 | /* | |
1077 | * This routine will shutdown a serial port; interrupts are disabled, and | |
1078 | * DTR is dropped if the hangup on close termio flag is on. | |
1079 | */ | |
1080 | static void | |
475be4d8 | 1081 | isdn_tty_shutdown(modem_info *info) |
1da177e4 | 1082 | { |
d41861ca | 1083 | if (!tty_port_initialized(&info->port)) |
1da177e4 LT |
1084 | return; |
1085 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1086 | printk(KERN_DEBUG "Shutting down isdnmodem port %d ....\n", info->line); | |
1087 | #endif | |
1088 | isdn_unlock_drivers(); | |
1089 | info->msr &= ~UART_MSR_RI; | |
adc8d746 | 1090 | if (!info->port.tty || (info->port.tty->termios.c_cflag & HUPCL)) { |
1da177e4 LT |
1091 | info->mcr &= ~(UART_MCR_DTR | UART_MCR_RTS); |
1092 | if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) { | |
1093 | isdn_tty_modem_reset_regs(info, 0); | |
1094 | #ifdef ISDN_DEBUG_MODEM_HUP | |
1095 | printk(KERN_DEBUG "Mhup in isdn_tty_shutdown\n"); | |
1096 | #endif | |
1097 | isdn_tty_modem_hup(info, 1); | |
1098 | } | |
1099 | } | |
ba43294d JS |
1100 | if (info->port.tty) |
1101 | set_bit(TTY_IO_ERROR, &info->port.tty->flags); | |
1da177e4 | 1102 | |
d41861ca | 1103 | tty_port_set_initialized(&info->port, 0); |
1da177e4 LT |
1104 | } |
1105 | ||
1106 | /* isdn_tty_write() is the main send-routine. It is called from the upper | |
1107 | * levels within the kernel to perform sending data. Depending on the | |
1108 | * online-flag it either directs output to the at-command-interpreter or | |
1109 | * to the lower level. Additional tasks done here: | |
1110 | * - If online, check for escape-sequence (+++) | |
1111 | * - If sending audio-data, call isdn_tty_DLEdown() to parse DLE-codes. | |
1112 | * - If receiving audio-data, call isdn_tty_end_vrx() to abort if needed. | |
1113 | * - If dialing, abort dial. | |
1114 | */ | |
1115 | static int | |
475be4d8 | 1116 | isdn_tty_write(struct tty_struct *tty, const u_char *buf, int count) |
1da177e4 LT |
1117 | { |
1118 | int c; | |
1119 | int total = 0; | |
1120 | modem_info *info = (modem_info *) tty->driver_data; | |
1121 | atemu *m = &info->emu; | |
1122 | ||
1123 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_write")) | |
1124 | return 0; | |
1125 | /* See isdn_tty_senddown() */ | |
1126 | atomic_inc(&info->xmit_lock); | |
1127 | while (1) { | |
1128 | c = count; | |
1129 | if (c > info->xmit_size - info->xmit_count) | |
1130 | c = info->xmit_size - info->xmit_count; | |
1131 | if (info->isdn_driver >= 0 && c > dev->drv[info->isdn_driver]->maxbufsize) | |
1132 | c = dev->drv[info->isdn_driver]->maxbufsize; | |
1133 | if (c <= 0) | |
1134 | break; | |
1135 | if ((info->online > 1) | |
1136 | #ifdef CONFIG_ISDN_AUDIO | |
1137 | || (info->vonline & 3) | |
1138 | #endif | |
1139 | ) { | |
1140 | #ifdef CONFIG_ISDN_AUDIO | |
1141 | if (!info->vonline) | |
1142 | #endif | |
1143 | isdn_tty_check_esc(buf, m->mdmreg[REG_ESC], c, | |
1144 | &(m->pluscount), | |
1145 | &(m->lastplus)); | |
82e46b31 | 1146 | memcpy(&info->port.xmit_buf[info->xmit_count], buf, c); |
1da177e4 LT |
1147 | #ifdef CONFIG_ISDN_AUDIO |
1148 | if (info->vonline) { | |
1149 | int cc = isdn_tty_handleDLEdown(info, m, c); | |
1150 | if (info->vonline & 2) { | |
1151 | if (!cc) { | |
1152 | /* If DLE decoding results in zero-transmit, but | |
1153 | * c originally was non-zero, do a wakeup. | |
1154 | */ | |
1155 | tty_wakeup(tty); | |
1156 | info->msr |= UART_MSR_CTS; | |
1157 | info->lsr |= UART_LSR_TEMT; | |
1158 | } | |
1159 | info->xmit_count += cc; | |
1160 | } | |
1161 | if ((info->vonline & 3) == 1) { | |
1162 | /* Do NOT handle Ctrl-Q or Ctrl-S | |
1163 | * when in full-duplex audio mode. | |
1164 | */ | |
1165 | if (isdn_tty_end_vrx(buf, c)) { | |
1166 | info->vonline &= ~1; | |
1167 | #ifdef ISDN_DEBUG_MODEM_VOICE | |
1168 | printk(KERN_DEBUG | |
1169 | "got !^Q/^S, send DLE-ETX,VCON on ttyI%d\n", | |
1170 | info->line); | |
1171 | #endif | |
1172 | isdn_tty_at_cout("\020\003\r\nVCON\r\n", info); | |
1173 | } | |
1174 | } | |
1175 | } else | |
475be4d8 JP |
1176 | if (TTY_IS_FCLASS1(info)) { |
1177 | int cc = isdn_tty_handleDLEdown(info, m, c); | |
1178 | ||
1179 | if (info->vonline & 4) { /* ETX seen */ | |
1180 | isdn_ctrl c; | |
1181 | ||
1182 | c.command = ISDN_CMD_FAXCMD; | |
1183 | c.driver = info->isdn_driver; | |
1184 | c.arg = info->isdn_channel; | |
1185 | c.parm.aux.cmd = ISDN_FAX_CLASS1_CTRL; | |
1186 | c.parm.aux.subcmd = ETX; | |
1187 | isdn_command(&c); | |
1188 | } | |
1189 | info->vonline = 0; | |
1da177e4 | 1190 | #ifdef ISDN_DEBUG_MODEM_VOICE |
475be4d8 | 1191 | printk(KERN_DEBUG "fax dle cc/c %d/%d\n", cc, c); |
1da177e4 | 1192 | #endif |
475be4d8 JP |
1193 | info->xmit_count += cc; |
1194 | } else | |
1da177e4 | 1195 | #endif |
475be4d8 | 1196 | info->xmit_count += c; |
1da177e4 LT |
1197 | } else { |
1198 | info->msr |= UART_MSR_CTS; | |
1199 | info->lsr |= UART_LSR_TEMT; | |
1200 | if (info->dialing) { | |
1201 | info->dialing = 0; | |
1202 | #ifdef ISDN_DEBUG_MODEM_HUP | |
1203 | printk(KERN_DEBUG "Mhup in isdn_tty_write\n"); | |
1204 | #endif | |
1205 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
1206 | isdn_tty_modem_hup(info, 1); | |
1207 | } else | |
1208 | c = isdn_tty_edit_at(buf, c, info); | |
1209 | } | |
1210 | buf += c; | |
1211 | count -= c; | |
1212 | total += c; | |
1213 | } | |
1214 | atomic_dec(&info->xmit_lock); | |
b03efcfb | 1215 | if ((info->xmit_count) || !skb_queue_empty(&info->xmit_queue)) { |
1da177e4 LT |
1216 | if (m->mdmreg[REG_DXMT] & BIT_DXMT) { |
1217 | isdn_tty_senddown(info); | |
1218 | isdn_tty_tint(info); | |
1219 | } | |
1220 | isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, 1); | |
1221 | } | |
1222 | return total; | |
1223 | } | |
1224 | ||
1225 | static int | |
1226 | isdn_tty_write_room(struct tty_struct *tty) | |
1227 | { | |
1228 | modem_info *info = (modem_info *) tty->driver_data; | |
1229 | int ret; | |
1230 | ||
1231 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_write_room")) | |
1232 | return 0; | |
1233 | if (!info->online) | |
1234 | return info->xmit_size; | |
1235 | ret = info->xmit_size - info->xmit_count; | |
1236 | return (ret < 0) ? 0 : ret; | |
1237 | } | |
1238 | ||
1239 | static int | |
1240 | isdn_tty_chars_in_buffer(struct tty_struct *tty) | |
1241 | { | |
1242 | modem_info *info = (modem_info *) tty->driver_data; | |
1243 | ||
1244 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_chars_in_buffer")) | |
1245 | return 0; | |
1246 | if (!info->online) | |
1247 | return 0; | |
1248 | return (info->xmit_count); | |
1249 | } | |
1250 | ||
1251 | static void | |
1252 | isdn_tty_flush_buffer(struct tty_struct *tty) | |
1253 | { | |
1254 | modem_info *info; | |
1255 | ||
1256 | if (!tty) { | |
1257 | return; | |
1258 | } | |
1259 | info = (modem_info *) tty->driver_data; | |
1260 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_flush_buffer")) { | |
1261 | return; | |
1262 | } | |
1263 | isdn_tty_cleanup_xmit(info); | |
1264 | info->xmit_count = 0; | |
1da177e4 LT |
1265 | tty_wakeup(tty); |
1266 | } | |
1267 | ||
1268 | static void | |
1269 | isdn_tty_flush_chars(struct tty_struct *tty) | |
1270 | { | |
1271 | modem_info *info = (modem_info *) tty->driver_data; | |
1272 | ||
1273 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_flush_chars")) | |
1274 | return; | |
b03efcfb | 1275 | if ((info->xmit_count) || !skb_queue_empty(&info->xmit_queue)) |
1da177e4 LT |
1276 | isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, 1); |
1277 | } | |
1278 | ||
1279 | /* | |
1280 | * ------------------------------------------------------------ | |
1281 | * isdn_tty_throttle() | |
1282 | * | |
1283 | * This routine is called by the upper-layer tty layer to signal that | |
1284 | * incoming characters should be throttled. | |
1285 | * ------------------------------------------------------------ | |
1286 | */ | |
1287 | static void | |
1288 | isdn_tty_throttle(struct tty_struct *tty) | |
1289 | { | |
1290 | modem_info *info = (modem_info *) tty->driver_data; | |
1291 | ||
1292 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_throttle")) | |
1293 | return; | |
1294 | if (I_IXOFF(tty)) | |
1295 | info->x_char = STOP_CHAR(tty); | |
1296 | info->mcr &= ~UART_MCR_RTS; | |
1297 | } | |
1298 | ||
1299 | static void | |
1300 | isdn_tty_unthrottle(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_unthrottle")) | |
1305 | return; | |
1306 | if (I_IXOFF(tty)) { | |
1307 | if (info->x_char) | |
1308 | info->x_char = 0; | |
1309 | else | |
1310 | info->x_char = START_CHAR(tty); | |
1311 | } | |
1312 | info->mcr |= UART_MCR_RTS; | |
1313 | } | |
1314 | ||
1315 | /* | |
1316 | * ------------------------------------------------------------ | |
1317 | * isdn_tty_ioctl() and friends | |
1318 | * ------------------------------------------------------------ | |
1319 | */ | |
1320 | ||
1321 | /* | |
1322 | * isdn_tty_get_lsr_info - get line status register info | |
1323 | * | |
1324 | * Purpose: Let user call ioctl() to get info when the UART physically | |
1325 | * is emptied. On bus types like RS485, the transmitter must | |
1326 | * release the bus after transmitting. This must be done when | |
1327 | * the transmit shift register is empty, not be done when the | |
1328 | * transmit holding register is empty. This functionality | |
1329 | * allows RS485 driver to be written in user space. | |
1330 | */ | |
1331 | static int | |
475be4d8 | 1332 | isdn_tty_get_lsr_info(modem_info *info, uint __user *value) |
1da177e4 LT |
1333 | { |
1334 | u_char status; | |
1335 | uint result; | |
1336 | ||
1337 | status = info->lsr; | |
1338 | result = ((status & UART_LSR_TEMT) ? TIOCSER_TEMT : 0); | |
1339 | return put_user(result, value); | |
1340 | } | |
1341 | ||
1342 | ||
1343 | static int | |
60b33c13 | 1344 | isdn_tty_tiocmget(struct tty_struct *tty) |
1da177e4 LT |
1345 | { |
1346 | modem_info *info = (modem_info *) tty->driver_data; | |
1347 | u_char control, status; | |
1348 | ||
156f1ed6 | 1349 | if (isdn_tty_paranoia_check(info, tty->name, __func__)) |
1da177e4 | 1350 | return -ENODEV; |
18900ca6 | 1351 | if (tty_io_error(tty)) |
1da177e4 LT |
1352 | return -EIO; |
1353 | ||
72250d44 | 1354 | mutex_lock(&modem_info_mutex); |
1da177e4 LT |
1355 | #ifdef ISDN_DEBUG_MODEM_IOCTL |
1356 | printk(KERN_DEBUG "ttyI%d ioctl TIOCMGET\n", info->line); | |
1357 | #endif | |
1358 | ||
1359 | control = info->mcr; | |
1360 | status = info->msr; | |
72250d44 | 1361 | mutex_unlock(&modem_info_mutex); |
1da177e4 | 1362 | return ((control & UART_MCR_RTS) ? TIOCM_RTS : 0) |
475be4d8 JP |
1363 | | ((control & UART_MCR_DTR) ? TIOCM_DTR : 0) |
1364 | | ((status & UART_MSR_DCD) ? TIOCM_CAR : 0) | |
1365 | | ((status & UART_MSR_RI) ? TIOCM_RNG : 0) | |
1366 | | ((status & UART_MSR_DSR) ? TIOCM_DSR : 0) | |
1367 | | ((status & UART_MSR_CTS) ? TIOCM_CTS : 0); | |
1da177e4 LT |
1368 | } |
1369 | ||
1370 | static int | |
20b9d177 | 1371 | isdn_tty_tiocmset(struct tty_struct *tty, |
475be4d8 | 1372 | unsigned int set, unsigned int clear) |
1da177e4 LT |
1373 | { |
1374 | modem_info *info = (modem_info *) tty->driver_data; | |
1375 | ||
156f1ed6 | 1376 | if (isdn_tty_paranoia_check(info, tty->name, __func__)) |
1da177e4 | 1377 | return -ENODEV; |
18900ca6 | 1378 | if (tty_io_error(tty)) |
1da177e4 LT |
1379 | return -EIO; |
1380 | ||
1381 | #ifdef ISDN_DEBUG_MODEM_IOCTL | |
1382 | printk(KERN_DEBUG "ttyI%d ioctl TIOCMxxx: %x %x\n", info->line, set, clear); | |
1383 | #endif | |
1384 | ||
72250d44 | 1385 | mutex_lock(&modem_info_mutex); |
1da177e4 LT |
1386 | if (set & TIOCM_RTS) |
1387 | info->mcr |= UART_MCR_RTS; | |
1388 | if (set & TIOCM_DTR) { | |
1389 | info->mcr |= UART_MCR_DTR; | |
1390 | isdn_tty_modem_ncarrier(info); | |
1391 | } | |
1392 | ||
1393 | if (clear & TIOCM_RTS) | |
1394 | info->mcr &= ~UART_MCR_RTS; | |
1395 | if (clear & TIOCM_DTR) { | |
1396 | info->mcr &= ~UART_MCR_DTR; | |
1397 | if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) { | |
1398 | isdn_tty_modem_reset_regs(info, 0); | |
1399 | #ifdef ISDN_DEBUG_MODEM_HUP | |
1400 | printk(KERN_DEBUG "Mhup in TIOCMSET\n"); | |
1401 | #endif | |
1402 | if (info->online) | |
1403 | info->ncarrier = 1; | |
1404 | isdn_tty_modem_hup(info, 1); | |
1405 | } | |
1406 | } | |
72250d44 | 1407 | mutex_unlock(&modem_info_mutex); |
1da177e4 LT |
1408 | return 0; |
1409 | } | |
1410 | ||
1411 | static int | |
6caa76b7 | 1412 | isdn_tty_ioctl(struct tty_struct *tty, uint cmd, ulong arg) |
1da177e4 LT |
1413 | { |
1414 | modem_info *info = (modem_info *) tty->driver_data; | |
1da177e4 LT |
1415 | |
1416 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_ioctl")) | |
1417 | return -ENODEV; | |
18900ca6 | 1418 | if (tty_io_error(tty)) |
1da177e4 LT |
1419 | return -EIO; |
1420 | switch (cmd) { | |
475be4d8 | 1421 | case TIOCSERGETLSR: /* Get line status register */ |
1da177e4 | 1422 | #ifdef ISDN_DEBUG_MODEM_IOCTL |
475be4d8 | 1423 | printk(KERN_DEBUG "ttyI%d ioctl TIOCSERGETLSR\n", info->line); |
1da177e4 | 1424 | #endif |
475be4d8 JP |
1425 | return isdn_tty_get_lsr_info(info, (uint __user *) arg); |
1426 | default: | |
1da177e4 | 1427 | #ifdef ISDN_DEBUG_MODEM_IOCTL |
475be4d8 | 1428 | printk(KERN_DEBUG "UNKNOWN ioctl 0x%08x on ttyi%d\n", cmd, info->line); |
1da177e4 | 1429 | #endif |
475be4d8 | 1430 | return -ENOIOCTLCMD; |
1da177e4 LT |
1431 | } |
1432 | return 0; | |
1433 | } | |
1434 | ||
1435 | static void | |
606d099c | 1436 | isdn_tty_set_termios(struct tty_struct *tty, struct ktermios *old_termios) |
1da177e4 LT |
1437 | { |
1438 | modem_info *info = (modem_info *) tty->driver_data; | |
1439 | ||
2ff33d66 | 1440 | mutex_lock(&modem_info_mutex); |
1da177e4 LT |
1441 | if (!old_termios) |
1442 | isdn_tty_change_speed(info); | |
1443 | else { | |
adc8d746 AC |
1444 | if (tty->termios.c_cflag == old_termios->c_cflag && |
1445 | tty->termios.c_ispeed == old_termios->c_ispeed && | |
2ff33d66 JJB |
1446 | tty->termios.c_ospeed == old_termios->c_ospeed) { |
1447 | mutex_unlock(&modem_info_mutex); | |
1da177e4 | 1448 | return; |
2ff33d66 | 1449 | } |
1da177e4 | 1450 | isdn_tty_change_speed(info); |
1da177e4 | 1451 | } |
2ff33d66 | 1452 | mutex_unlock(&modem_info_mutex); |
1da177e4 LT |
1453 | } |
1454 | ||
1455 | /* | |
1456 | * ------------------------------------------------------------ | |
1457 | * isdn_tty_open() and friends | |
1458 | * ------------------------------------------------------------ | |
1459 | */ | |
042b9e7c | 1460 | |
f7e0405e JS |
1461 | static int isdn_tty_install(struct tty_driver *driver, struct tty_struct *tty) |
1462 | { | |
1463 | modem_info *info = &dev->mdm.info[tty->index]; | |
1464 | ||
1465 | if (isdn_tty_paranoia_check(info, tty->name, __func__)) | |
1466 | return -ENODEV; | |
1467 | ||
1468 | tty->driver_data = info; | |
1469 | ||
1470 | return tty_port_install(&info->port, driver, tty); | |
1471 | } | |
1472 | ||
1da177e4 LT |
1473 | /* |
1474 | * This routine is called whenever a serial port is opened. It | |
1475 | * enables interrupts for a serial port, linking in its async structure into | |
1476 | * the IRQ chain. It also performs the serial-specific | |
1477 | * initialization for the tty structure. | |
1478 | */ | |
1479 | static int | |
1480 | isdn_tty_open(struct tty_struct *tty, struct file *filp) | |
1481 | { | |
f7e0405e JS |
1482 | modem_info *info = tty->driver_data; |
1483 | struct tty_port *port = &info->port; | |
410235fd | 1484 | int retval; |
1da177e4 | 1485 | |
1da177e4 | 1486 | #ifdef ISDN_DEBUG_MODEM_OPEN |
475be4d8 | 1487 | printk(KERN_DEBUG "isdn_tty_open %s, count = %d\n", tty->name, |
265d6f00 | 1488 | port->count); |
1da177e4 | 1489 | #endif |
265d6f00 | 1490 | port->count++; |
265d6f00 | 1491 | port->tty = tty; |
1da177e4 LT |
1492 | /* |
1493 | * Start up serial port | |
1494 | */ | |
1495 | retval = isdn_tty_startup(info); | |
1496 | if (retval) { | |
1497 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1498 | printk(KERN_DEBUG "isdn_tty_open return after startup\n"); | |
1499 | #endif | |
1da177e4 LT |
1500 | return retval; |
1501 | } | |
875d54aa | 1502 | retval = tty_port_block_til_ready(port, tty, filp); |
1da177e4 LT |
1503 | if (retval) { |
1504 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1505 | printk(KERN_DEBUG "isdn_tty_open return after isdn_tty_block_til_ready \n"); | |
1506 | #endif | |
1da177e4 LT |
1507 | return retval; |
1508 | } | |
1509 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1510 | printk(KERN_DEBUG "isdn_tty_open ttyi%d successful...\n", info->line); | |
1511 | #endif | |
1512 | dev->modempoll++; | |
1513 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1514 | printk(KERN_DEBUG "isdn_tty_open normal exit\n"); | |
1515 | #endif | |
1516 | return 0; | |
1517 | } | |
1518 | ||
1519 | static void | |
1520 | isdn_tty_close(struct tty_struct *tty, struct file *filp) | |
1521 | { | |
1522 | modem_info *info = (modem_info *) tty->driver_data; | |
265d6f00 | 1523 | struct tty_port *port = &info->port; |
1da177e4 LT |
1524 | ulong timeout; |
1525 | ||
1526 | if (!info || isdn_tty_paranoia_check(info, tty->name, "isdn_tty_close")) | |
1527 | return; | |
1528 | if (tty_hung_up_p(filp)) { | |
1529 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1530 | printk(KERN_DEBUG "isdn_tty_close return after tty_hung_up_p\n"); | |
1531 | #endif | |
1532 | return; | |
1533 | } | |
265d6f00 | 1534 | if ((tty->count == 1) && (port->count != 1)) { |
1da177e4 LT |
1535 | /* |
1536 | * Uh, oh. tty->count is 1, which means that the tty | |
1537 | * structure will be freed. Info->count should always | |
1538 | * be one in these conditions. If it's greater than | |
1539 | * one, we've got real problems, since it means the | |
1540 | * serial port won't be shutdown. | |
1541 | */ | |
1542 | printk(KERN_ERR "isdn_tty_close: bad port count; tty->count is 1, " | |
265d6f00 JS |
1543 | "info->count is %d\n", port->count); |
1544 | port->count = 1; | |
1da177e4 | 1545 | } |
265d6f00 | 1546 | if (--port->count < 0) { |
1da177e4 | 1547 | printk(KERN_ERR "isdn_tty_close: bad port count for ttyi%d: %d\n", |
265d6f00 JS |
1548 | info->line, port->count); |
1549 | port->count = 0; | |
1da177e4 | 1550 | } |
265d6f00 | 1551 | if (port->count) { |
1da177e4 LT |
1552 | #ifdef ISDN_DEBUG_MODEM_OPEN |
1553 | printk(KERN_DEBUG "isdn_tty_close after info->count != 0\n"); | |
1554 | #endif | |
1555 | return; | |
1556 | } | |
a657eecd | 1557 | info->closing = 1; |
1da177e4 LT |
1558 | |
1559 | tty->closing = 1; | |
1560 | /* | |
1561 | * At this point we stop accepting input. To do this, we | |
1562 | * disable the receive line status interrupts, and tell the | |
1563 | * interrupt driver to stop checking the data ready bit in the | |
1564 | * line status register. | |
1565 | */ | |
d41861ca | 1566 | if (tty_port_initialized(port)) { |
79c1faa4 | 1567 | tty_wait_until_sent(tty, 3000); /* 30 seconds timeout */ |
1da177e4 LT |
1568 | /* |
1569 | * Before we drop DTR, make sure the UART transmitter | |
1570 | * has completely drained; this is especially | |
1571 | * important if there is a transmit FIFO! | |
1572 | */ | |
1573 | timeout = jiffies + HZ; | |
1574 | while (!(info->lsr & UART_LSR_TEMT)) { | |
24763c48 | 1575 | schedule_timeout_interruptible(20); |
475be4d8 | 1576 | if (time_after(jiffies, timeout)) |
1da177e4 LT |
1577 | break; |
1578 | } | |
1579 | } | |
1580 | dev->modempoll--; | |
1581 | isdn_tty_shutdown(info); | |
978e595f | 1582 | isdn_tty_flush_buffer(tty); |
1da177e4 | 1583 | tty_ldisc_flush(tty); |
265d6f00 | 1584 | port->tty = NULL; |
1da177e4 | 1585 | info->ncarrier = 0; |
4330d663 JS |
1586 | |
1587 | tty_port_close_end(port, tty); | |
a657eecd | 1588 | info->closing = 0; |
1da177e4 LT |
1589 | #ifdef ISDN_DEBUG_MODEM_OPEN |
1590 | printk(KERN_DEBUG "isdn_tty_close normal exit\n"); | |
1591 | #endif | |
1592 | } | |
1593 | ||
1594 | /* | |
1595 | * isdn_tty_hangup() --- called by tty_hangup() when a hangup is signaled. | |
1596 | */ | |
1597 | static void | |
1598 | isdn_tty_hangup(struct tty_struct *tty) | |
1599 | { | |
1600 | modem_info *info = (modem_info *) tty->driver_data; | |
265d6f00 | 1601 | struct tty_port *port = &info->port; |
1da177e4 LT |
1602 | |
1603 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_hangup")) | |
1604 | return; | |
1605 | isdn_tty_shutdown(info); | |
265d6f00 | 1606 | port->count = 0; |
807c8d81 | 1607 | tty_port_set_active(port, 0); |
265d6f00 JS |
1608 | port->tty = NULL; |
1609 | wake_up_interruptible(&port->open_wait); | |
1da177e4 LT |
1610 | } |
1611 | ||
1612 | /* This routine initializes all emulator-data. | |
1613 | */ | |
1614 | static void | |
475be4d8 | 1615 | isdn_tty_reset_profile(atemu *m) |
1da177e4 LT |
1616 | { |
1617 | m->profile[0] = 0; | |
1618 | m->profile[1] = 0; | |
1619 | m->profile[2] = 43; | |
1620 | m->profile[3] = 13; | |
1621 | m->profile[4] = 10; | |
1622 | m->profile[5] = 8; | |
1623 | m->profile[6] = 3; | |
1624 | m->profile[7] = 60; | |
1625 | m->profile[8] = 2; | |
1626 | m->profile[9] = 6; | |
1627 | m->profile[10] = 7; | |
1628 | m->profile[11] = 70; | |
1629 | m->profile[12] = 0x45; | |
1630 | m->profile[13] = 4; | |
1631 | m->profile[14] = ISDN_PROTO_L2_X75I; | |
1632 | m->profile[15] = ISDN_PROTO_L3_TRANS; | |
1633 | m->profile[16] = ISDN_SERIAL_XMIT_SIZE / 16; | |
1634 | m->profile[17] = ISDN_MODEM_WINSIZE; | |
1635 | m->profile[18] = 4; | |
1636 | m->profile[19] = 0; | |
1637 | m->profile[20] = 0; | |
1638 | m->profile[23] = 0; | |
1639 | m->pmsn[0] = '\0'; | |
1640 | m->plmsn[0] = '\0'; | |
1641 | } | |
1642 | ||
1643 | #ifdef CONFIG_ISDN_AUDIO | |
1644 | static void | |
475be4d8 | 1645 | isdn_tty_modem_reset_vpar(atemu *m) |
1da177e4 LT |
1646 | { |
1647 | m->vpar[0] = 2; /* Voice-device (2 = phone line) */ | |
1648 | m->vpar[1] = 0; /* Silence detection level (0 = none ) */ | |
1649 | m->vpar[2] = 70; /* Silence interval (7 sec. ) */ | |
1650 | m->vpar[3] = 2; /* Compression type (1 = ADPCM-2 ) */ | |
1651 | m->vpar[4] = 0; /* DTMF detection level (0 = softcode ) */ | |
1652 | m->vpar[5] = 8; /* DTMF interval (8 * 5 ms. ) */ | |
1653 | } | |
1654 | #endif | |
1655 | ||
1656 | #ifdef CONFIG_ISDN_TTY_FAX | |
1657 | static void | |
475be4d8 | 1658 | isdn_tty_modem_reset_faxpar(modem_info *info) |
1da177e4 LT |
1659 | { |
1660 | T30_s *f = info->fax; | |
1661 | ||
1662 | f->code = 0; | |
1663 | f->phase = ISDN_FAX_PHASE_IDLE; | |
1664 | f->direction = 0; | |
1665 | f->resolution = 1; /* fine */ | |
1666 | f->rate = 5; /* 14400 bit/s */ | |
1667 | f->width = 0; | |
1668 | f->length = 0; | |
1669 | f->compression = 0; | |
1670 | f->ecm = 0; | |
1671 | f->binary = 0; | |
1672 | f->scantime = 0; | |
1673 | memset(&f->id[0], 32, FAXIDLEN - 1); | |
1674 | f->id[FAXIDLEN - 1] = 0; | |
1675 | f->badlin = 0; | |
1676 | f->badmul = 0; | |
1677 | f->bor = 0; | |
1678 | f->nbc = 0; | |
1679 | f->cq = 0; | |
1680 | f->cr = 0; | |
1681 | f->ctcrty = 0; | |
1682 | f->minsp = 0; | |
1683 | f->phcto = 30; | |
1684 | f->rel = 0; | |
1685 | memset(&f->pollid[0], 32, FAXIDLEN - 1); | |
1686 | f->pollid[FAXIDLEN - 1] = 0; | |
1687 | } | |
1688 | #endif | |
1689 | ||
1690 | static void | |
475be4d8 | 1691 | isdn_tty_modem_reset_regs(modem_info *info, int force) |
1da177e4 LT |
1692 | { |
1693 | atemu *m = &info->emu; | |
1694 | if ((m->mdmreg[REG_DTRR] & BIT_DTRR) || force) { | |
1695 | memcpy(m->mdmreg, m->profile, ISDN_MODEM_NUMREG); | |
1696 | memcpy(m->msn, m->pmsn, ISDN_MSNLEN); | |
1697 | memcpy(m->lmsn, m->plmsn, ISDN_LMSNLEN); | |
1698 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16; | |
1699 | } | |
1700 | #ifdef CONFIG_ISDN_AUDIO | |
1701 | isdn_tty_modem_reset_vpar(m); | |
1702 | #endif | |
1703 | #ifdef CONFIG_ISDN_TTY_FAX | |
1704 | isdn_tty_modem_reset_faxpar(info); | |
1705 | #endif | |
1706 | m->mdmcmdl = 0; | |
1707 | } | |
1708 | ||
1709 | static void | |
475be4d8 | 1710 | modem_write_profile(atemu *m) |
1da177e4 LT |
1711 | { |
1712 | memcpy(m->profile, m->mdmreg, ISDN_MODEM_NUMREG); | |
1713 | memcpy(m->pmsn, m->msn, ISDN_MSNLEN); | |
1714 | memcpy(m->plmsn, m->lmsn, ISDN_LMSNLEN); | |
1715 | if (dev->profd) | |
1716 | send_sig(SIGIO, dev->profd, 1); | |
1717 | } | |
1718 | ||
b68e31d0 | 1719 | static const struct tty_operations modem_ops = { |
f7e0405e | 1720 | .install = isdn_tty_install, |
475be4d8 | 1721 | .open = isdn_tty_open, |
1da177e4 LT |
1722 | .close = isdn_tty_close, |
1723 | .write = isdn_tty_write, | |
1724 | .flush_chars = isdn_tty_flush_chars, | |
1725 | .write_room = isdn_tty_write_room, | |
1726 | .chars_in_buffer = isdn_tty_chars_in_buffer, | |
1727 | .flush_buffer = isdn_tty_flush_buffer, | |
1728 | .ioctl = isdn_tty_ioctl, | |
1729 | .throttle = isdn_tty_throttle, | |
1730 | .unthrottle = isdn_tty_unthrottle, | |
1731 | .set_termios = isdn_tty_set_termios, | |
1732 | .hangup = isdn_tty_hangup, | |
1733 | .tiocmget = isdn_tty_tiocmget, | |
1734 | .tiocmset = isdn_tty_tiocmset, | |
1735 | }; | |
1736 | ||
042b9e7c JS |
1737 | static int isdn_tty_carrier_raised(struct tty_port *port) |
1738 | { | |
1739 | modem_info *info = container_of(port, modem_info, port); | |
1740 | return info->msr & UART_MSR_DCD; | |
1741 | } | |
1742 | ||
1743 | static const struct tty_port_operations isdn_tty_port_ops = { | |
1744 | .carrier_raised = isdn_tty_carrier_raised, | |
1745 | }; | |
1746 | ||
1da177e4 LT |
1747 | int |
1748 | isdn_tty_modem_init(void) | |
1749 | { | |
1750 | isdn_modem_t *m; | |
1751 | int i, retval; | |
1752 | modem_info *info; | |
1753 | ||
1754 | m = &dev->mdm; | |
1755 | m->tty_modem = alloc_tty_driver(ISDN_MAX_CHANNELS); | |
1756 | if (!m->tty_modem) | |
1757 | return -ENOMEM; | |
1758 | m->tty_modem->name = "ttyI"; | |
1da177e4 LT |
1759 | m->tty_modem->major = ISDN_TTY_MAJOR; |
1760 | m->tty_modem->minor_start = 0; | |
1761 | m->tty_modem->type = TTY_DRIVER_TYPE_SERIAL; | |
1762 | m->tty_modem->subtype = SERIAL_TYPE_NORMAL; | |
1763 | m->tty_modem->init_termios = tty_std_termios; | |
1764 | m->tty_modem->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; | |
c4d6ebeb | 1765 | m->tty_modem->flags = TTY_DRIVER_REAL_RAW; |
1da177e4 LT |
1766 | m->tty_modem->driver_name = "isdn_tty"; |
1767 | tty_set_operations(m->tty_modem, &modem_ops); | |
1768 | retval = tty_register_driver(m->tty_modem); | |
1769 | if (retval) { | |
1770 | printk(KERN_WARNING "isdn_tty: Couldn't register modem-device\n"); | |
1771 | goto err; | |
1772 | } | |
1773 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
1774 | info = &m->info[i]; | |
1775 | #ifdef CONFIG_ISDN_TTY_FAX | |
1776 | if (!(info->fax = kmalloc(sizeof(T30_s), GFP_KERNEL))) { | |
1777 | printk(KERN_ERR "Could not allocate fax t30-buffer\n"); | |
1778 | retval = -ENOMEM; | |
1779 | goto err_unregister; | |
1780 | } | |
1da177e4 | 1781 | #endif |
48decc1c | 1782 | tty_port_init(&info->port); |
042b9e7c | 1783 | info->port.ops = &isdn_tty_port_ops; |
1da177e4 | 1784 | spin_lock_init(&info->readlock); |
1da177e4 LT |
1785 | sprintf(info->last_cause, "0000"); |
1786 | sprintf(info->last_num, "none"); | |
1787 | info->last_dir = 0; | |
1788 | info->last_lhup = 1; | |
1789 | info->last_l2 = -1; | |
1790 | info->last_si = 0; | |
1791 | isdn_tty_reset_profile(&info->emu); | |
1792 | isdn_tty_modem_reset_regs(info, 1); | |
1793 | info->magic = ISDN_ASYNC_MAGIC; | |
1794 | info->line = i; | |
1da177e4 | 1795 | info->x_char = 0; |
1da177e4 LT |
1796 | info->isdn_driver = -1; |
1797 | info->isdn_channel = -1; | |
1798 | info->drv_index = -1; | |
1799 | info->xmit_size = ISDN_SERIAL_XMIT_SIZE; | |
e99e88a9 | 1800 | timer_setup(&info->nc_timer, isdn_tty_modem_do_ncarrier, 0); |
1da177e4 LT |
1801 | skb_queue_head_init(&info->xmit_queue); |
1802 | #ifdef CONFIG_ISDN_AUDIO | |
1803 | skb_queue_head_init(&info->dtmf_queue); | |
1804 | #endif | |
82e46b31 JS |
1805 | info->port.xmit_buf = kmalloc(ISDN_SERIAL_XMIT_MAX + 5, |
1806 | GFP_KERNEL); | |
1807 | if (!info->port.xmit_buf) { | |
1da177e4 LT |
1808 | printk(KERN_ERR "Could not allocate modem xmit-buffer\n"); |
1809 | retval = -ENOMEM; | |
1810 | goto err_unregister; | |
1811 | } | |
1812 | /* Make room for T.70 header */ | |
82e46b31 | 1813 | info->port.xmit_buf += 4; |
1da177e4 LT |
1814 | } |
1815 | return 0; | |
1816 | err_unregister: | |
1817 | for (i--; i >= 0; i--) { | |
1818 | info = &m->info[i]; | |
1819 | #ifdef CONFIG_ISDN_TTY_FAX | |
1820 | kfree(info->fax); | |
1821 | #endif | |
82e46b31 | 1822 | kfree(info->port.xmit_buf - 4); |
191c5f10 JS |
1823 | info->port.xmit_buf = NULL; |
1824 | tty_port_destroy(&info->port); | |
1da177e4 LT |
1825 | } |
1826 | tty_unregister_driver(m->tty_modem); | |
475be4d8 | 1827 | err: |
1da177e4 LT |
1828 | put_tty_driver(m->tty_modem); |
1829 | m->tty_modem = NULL; | |
1830 | return retval; | |
1831 | } | |
1832 | ||
1833 | void | |
1834 | isdn_tty_exit(void) | |
1835 | { | |
1836 | modem_info *info; | |
1837 | int i; | |
1838 | ||
1839 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
1840 | info = &dev->mdm.info[i]; | |
1841 | isdn_tty_cleanup_xmit(info); | |
1842 | #ifdef CONFIG_ISDN_TTY_FAX | |
1843 | kfree(info->fax); | |
1844 | #endif | |
82e46b31 | 1845 | kfree(info->port.xmit_buf - 4); |
191c5f10 JS |
1846 | info->port.xmit_buf = NULL; |
1847 | tty_port_destroy(&info->port); | |
1da177e4 LT |
1848 | } |
1849 | tty_unregister_driver(dev->mdm.tty_modem); | |
1850 | put_tty_driver(dev->mdm.tty_modem); | |
1851 | dev->mdm.tty_modem = NULL; | |
1852 | } | |
1853 | ||
1854 | ||
1855 | /* | |
1856 | * isdn_tty_match_icall(char *MSN, atemu *tty_emulator, int dev_idx) | |
1857 | * match the MSN against the MSNs (glob patterns) defined for tty_emulator, | |
1858 | * and return 0 for match, 1 for no match, 2 if MSN could match if longer. | |
1859 | */ | |
1860 | ||
1861 | static int | |
1862 | isdn_tty_match_icall(char *cid, atemu *emu, int di) | |
1863 | { | |
1864 | #ifdef ISDN_DEBUG_MODEM_ICALL | |
1865 | printk(KERN_DEBUG "m_fi: msn=%s lmsn=%s mmsn=%s mreg[SI1]=%d mreg[SI2]=%d\n", | |
1866 | emu->msn, emu->lmsn, isdn_map_eaz2msn(emu->msn, di), | |
1867 | emu->mdmreg[REG_SI1], emu->mdmreg[REG_SI2]); | |
1868 | #endif | |
1869 | if (strlen(emu->lmsn)) { | |
1870 | char *p = emu->lmsn; | |
1871 | char *q; | |
1872 | int tmp; | |
1873 | int ret = 0; | |
1874 | ||
1875 | while (1) { | |
1876 | if ((q = strchr(p, ';'))) | |
1877 | *q = '\0'; | |
1878 | if ((tmp = isdn_msncmp(cid, isdn_map_eaz2msn(p, di))) > ret) | |
1879 | ret = tmp; | |
1880 | #ifdef ISDN_DEBUG_MODEM_ICALL | |
1881 | printk(KERN_DEBUG "m_fi: lmsnX=%s mmsn=%s -> tmp=%d\n", | |
1882 | p, isdn_map_eaz2msn(emu->msn, di), tmp); | |
1883 | #endif | |
1884 | if (q) { | |
1885 | *q = ';'; | |
1886 | p = q; | |
1887 | p++; | |
1888 | } | |
1889 | if (!tmp) | |
1890 | return 0; | |
1891 | if (!q) | |
1892 | break; | |
1893 | } | |
1894 | return ret; | |
1895 | } else { | |
1896 | int tmp; | |
1897 | tmp = isdn_msncmp(cid, isdn_map_eaz2msn(emu->msn, di)); | |
1898 | #ifdef ISDN_DEBUG_MODEM_ICALL | |
475be4d8 JP |
1899 | printk(KERN_DEBUG "m_fi: mmsn=%s -> tmp=%d\n", |
1900 | isdn_map_eaz2msn(emu->msn, di), tmp); | |
1da177e4 LT |
1901 | #endif |
1902 | return tmp; | |
1903 | } | |
1904 | } | |
1905 | ||
1906 | /* | |
1907 | * An incoming call-request has arrived. | |
1908 | * Search the tty-devices for an appropriate device and bind | |
1909 | * it to the ISDN-Channel. | |
1910 | * Return: | |
1911 | * | |
1912 | * 0 = No matching device found. | |
1913 | * 1 = A matching device found. | |
1914 | * 3 = No match found, but eventually would match, if | |
1915 | * CID is longer. | |
1916 | */ | |
1917 | int | |
1918 | isdn_tty_find_icall(int di, int ch, setup_parm *setup) | |
1919 | { | |
1920 | char *eaz; | |
1921 | int i; | |
1922 | int wret; | |
1923 | int idx; | |
1924 | int si1; | |
1925 | int si2; | |
1926 | char *nr; | |
1927 | ulong flags; | |
1928 | ||
1929 | if (!setup->phone[0]) { | |
1930 | nr = "0"; | |
1931 | printk(KERN_INFO "isdn_tty: Incoming call without OAD, assuming '0'\n"); | |
1932 | } else | |
1933 | nr = setup->phone; | |
1934 | si1 = (int) setup->si1; | |
1935 | si2 = (int) setup->si2; | |
1936 | if (!setup->eazmsn[0]) { | |
1937 | printk(KERN_WARNING "isdn_tty: Incoming call without CPN, assuming '0'\n"); | |
1938 | eaz = "0"; | |
1939 | } else | |
1940 | eaz = setup->eazmsn; | |
1941 | #ifdef ISDN_DEBUG_MODEM_ICALL | |
1942 | printk(KERN_DEBUG "m_fi: eaz=%s si1=%d si2=%d\n", eaz, si1, si2); | |
1943 | #endif | |
1944 | wret = 0; | |
1945 | spin_lock_irqsave(&dev->lock, flags); | |
1946 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
1947 | modem_info *info = &dev->mdm.info[i]; | |
1948 | ||
1b05f030 | 1949 | if (info->port.count == 0) |
475be4d8 | 1950 | continue; |
1da177e4 LT |
1951 | if ((info->emu.mdmreg[REG_SI1] & si2bit[si1]) && /* SI1 is matching */ |
1952 | (info->emu.mdmreg[REG_SI2] == si2)) { /* SI2 is matching */ | |
1953 | idx = isdn_dc2minor(di, ch); | |
1954 | #ifdef ISDN_DEBUG_MODEM_ICALL | |
1955 | printk(KERN_DEBUG "m_fi: match1 wret=%d\n", wret); | |
1956 | printk(KERN_DEBUG "m_fi: idx=%d flags=%08lx drv=%d ch=%d usg=%d\n", idx, | |
48decc1c JS |
1957 | info->port.flags, info->isdn_driver, |
1958 | info->isdn_channel, dev->usage[idx]); | |
1da177e4 LT |
1959 | #endif |
1960 | if ( | |
1961 | #ifndef FIX_FILE_TRANSFER | |
807c8d81 | 1962 | tty_port_active(&info->port) && |
1da177e4 LT |
1963 | #endif |
1964 | (info->isdn_driver == -1) && | |
1965 | (info->isdn_channel == -1) && | |
1966 | (USG_NONE(dev->usage[idx]))) { | |
1967 | int matchret; | |
1968 | ||
1969 | if ((matchret = isdn_tty_match_icall(eaz, &info->emu, di)) > wret) | |
1970 | wret = matchret; | |
1971 | if (!matchret) { /* EAZ is matching */ | |
1972 | info->isdn_driver = di; | |
1973 | info->isdn_channel = ch; | |
1974 | info->drv_index = idx; | |
1975 | dev->m_idx[idx] = info->line; | |
1976 | dev->usage[idx] &= ISDN_USAGE_EXCLUSIVE; | |
475be4d8 | 1977 | dev->usage[idx] |= isdn_calc_usage(si1, info->emu.mdmreg[REG_L2PROT]); |
1da177e4 LT |
1978 | strcpy(dev->num[idx], nr); |
1979 | strcpy(info->emu.cpn, eaz); | |
1980 | info->emu.mdmreg[REG_SI1I] = si2bit[si1]; | |
1981 | info->emu.mdmreg[REG_PLAN] = setup->plan; | |
1982 | info->emu.mdmreg[REG_SCREEN] = setup->screen; | |
1983 | isdn_info_update(); | |
1984 | spin_unlock_irqrestore(&dev->lock, flags); | |
1985 | printk(KERN_INFO "isdn_tty: call from %s, -> RING on ttyI%d\n", nr, | |
1986 | info->line); | |
1987 | info->msr |= UART_MSR_RI; | |
1988 | isdn_tty_modem_result(RESULT_RING, info); | |
1989 | isdn_timer_ctrl(ISDN_TIMER_MODEMRING, 1); | |
1990 | return 1; | |
1991 | } | |
1992 | } | |
1993 | } | |
1994 | } | |
1995 | spin_unlock_irqrestore(&dev->lock, flags); | |
1996 | printk(KERN_INFO "isdn_tty: call from %s -> %s %s\n", nr, eaz, | |
475be4d8 JP |
1997 | ((dev->drv[di]->flags & DRV_FLAG_REJBUS) && (wret != 2)) ? "rejected" : "ignored"); |
1998 | return (wret == 2) ? 3 : 0; | |
1da177e4 LT |
1999 | } |
2000 | ||
1da177e4 LT |
2001 | int |
2002 | isdn_tty_stat_callback(int i, isdn_ctrl *c) | |
2003 | { | |
2004 | int mi; | |
2005 | modem_info *info; | |
2006 | char *e; | |
2007 | ||
2008 | if (i < 0) | |
2009 | return 0; | |
2010 | if ((mi = dev->m_idx[i]) >= 0) { | |
2011 | info = &dev->mdm.info[mi]; | |
2012 | switch (c->command) { | |
475be4d8 JP |
2013 | case ISDN_STAT_CINF: |
2014 | printk(KERN_DEBUG "CHARGEINFO on ttyI%d: %ld %s\n", info->line, c->arg, c->parm.num); | |
2015 | info->emu.charge = (unsigned) simple_strtoul(c->parm.num, &e, 10); | |
2016 | if (e == (char *)c->parm.num) | |
2017 | info->emu.charge = 0; | |
2018 | ||
2019 | break; | |
2020 | case ISDN_STAT_BSENT: | |
1da177e4 | 2021 | #ifdef ISDN_TTY_STAT_DEBUG |
475be4d8 | 2022 | printk(KERN_DEBUG "tty_STAT_BSENT ttyI%d\n", info->line); |
1da177e4 | 2023 | #endif |
475be4d8 JP |
2024 | if ((info->isdn_driver == c->driver) && |
2025 | (info->isdn_channel == c->arg)) { | |
2026 | info->msr |= UART_MSR_CTS; | |
2027 | if (info->send_outstanding) | |
2028 | if (!(--info->send_outstanding)) | |
2029 | info->lsr |= UART_LSR_TEMT; | |
2030 | isdn_tty_tint(info); | |
1da177e4 | 2031 | return 1; |
475be4d8 JP |
2032 | } |
2033 | break; | |
2034 | case ISDN_STAT_CAUSE: | |
1da177e4 | 2035 | #ifdef ISDN_TTY_STAT_DEBUG |
475be4d8 JP |
2036 | printk(KERN_DEBUG "tty_STAT_CAUSE ttyI%d\n", info->line); |
2037 | #endif | |
2038 | /* Signal cause to tty-device */ | |
2039 | strncpy(info->last_cause, c->parm.num, 5); | |
2040 | return 1; | |
2041 | case ISDN_STAT_DISPLAY: | |
1da177e4 | 2042 | #ifdef ISDN_TTY_STAT_DEBUG |
475be4d8 | 2043 | printk(KERN_DEBUG "tty_STAT_DISPLAY ttyI%d\n", info->line); |
1da177e4 | 2044 | #endif |
475be4d8 JP |
2045 | /* Signal display to tty-device */ |
2046 | if ((info->emu.mdmreg[REG_DISPLAY] & BIT_DISPLAY) && | |
2047 | !(info->emu.mdmreg[REG_RESPNUM] & BIT_RESPNUM)) { | |
2048 | isdn_tty_at_cout("\r\n", info); | |
2049 | isdn_tty_at_cout("DISPLAY: ", info); | |
2050 | isdn_tty_at_cout(c->parm.display, info); | |
2051 | isdn_tty_at_cout("\r\n", info); | |
2052 | } | |
2053 | return 1; | |
2054 | case ISDN_STAT_DCONN: | |
2055 | #ifdef ISDN_TTY_STAT_DEBUG | |
2056 | printk(KERN_DEBUG "tty_STAT_DCONN ttyI%d\n", info->line); | |
2057 | #endif | |
807c8d81 | 2058 | if (tty_port_active(&info->port)) { |
475be4d8 JP |
2059 | if (info->dialing == 1) { |
2060 | info->dialing = 2; | |
2061 | return 1; | |
1da177e4 | 2062 | } |
475be4d8 JP |
2063 | } |
2064 | break; | |
2065 | case ISDN_STAT_DHUP: | |
1da177e4 | 2066 | #ifdef ISDN_TTY_STAT_DEBUG |
475be4d8 | 2067 | printk(KERN_DEBUG "tty_STAT_DHUP ttyI%d\n", info->line); |
1da177e4 | 2068 | #endif |
807c8d81 | 2069 | if (tty_port_active(&info->port)) { |
475be4d8 JP |
2070 | if (info->dialing == 1) |
2071 | isdn_tty_modem_result(RESULT_BUSY, info); | |
2072 | if (info->dialing > 1) | |
2073 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
2074 | info->dialing = 0; | |
1da177e4 | 2075 | #ifdef ISDN_DEBUG_MODEM_HUP |
475be4d8 | 2076 | printk(KERN_DEBUG "Mhup in ISDN_STAT_DHUP\n"); |
1da177e4 | 2077 | #endif |
475be4d8 JP |
2078 | isdn_tty_modem_hup(info, 0); |
2079 | return 1; | |
2080 | } | |
2081 | break; | |
2082 | case ISDN_STAT_BCONN: | |
1da177e4 | 2083 | #ifdef ISDN_TTY_STAT_DEBUG |
475be4d8 JP |
2084 | printk(KERN_DEBUG "tty_STAT_BCONN ttyI%d\n", info->line); |
2085 | #endif | |
2086 | /* Wake up any processes waiting | |
2087 | * for incoming call of this device when | |
2088 | * DCD follow the state of incoming carrier | |
2089 | */ | |
1b05f030 | 2090 | if (info->port.blocked_open && |
475be4d8 | 2091 | (info->emu.mdmreg[REG_DCD] & BIT_DCD)) { |
c6e92b63 | 2092 | wake_up_interruptible(&info->port.open_wait); |
475be4d8 | 2093 | } |
1da177e4 | 2094 | |
475be4d8 JP |
2095 | /* Schedule CONNECT-Message to any tty |
2096 | * waiting for it and | |
2097 | * set DCD-bit of its modem-status. | |
2098 | */ | |
807c8d81 | 2099 | if (tty_port_active(&info->port) || |
1b05f030 JS |
2100 | (info->port.blocked_open && |
2101 | (info->emu.mdmreg[REG_DCD] & BIT_DCD))) { | |
475be4d8 JP |
2102 | info->msr |= UART_MSR_DCD; |
2103 | info->emu.charge = 0; | |
2104 | if (info->dialing & 0xf) | |
2105 | info->last_dir = 1; | |
2106 | else | |
2107 | info->last_dir = 0; | |
2108 | info->dialing = 0; | |
2109 | info->rcvsched = 1; | |
2110 | if (USG_MODEM(dev->usage[i])) { | |
2111 | if (info->emu.mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM) { | |
2112 | strcpy(info->emu.connmsg, c->parm.num); | |
2113 | isdn_tty_modem_result(RESULT_CONNECT, info); | |
2114 | } else | |
2115 | isdn_tty_modem_result(RESULT_CONNECT64000, info); | |
1da177e4 | 2116 | } |
475be4d8 JP |
2117 | if (USG_VOICE(dev->usage[i])) |
2118 | isdn_tty_modem_result(RESULT_VCON, info); | |
2119 | return 1; | |
2120 | } | |
2121 | break; | |
2122 | case ISDN_STAT_BHUP: | |
1da177e4 | 2123 | #ifdef ISDN_TTY_STAT_DEBUG |
475be4d8 | 2124 | printk(KERN_DEBUG "tty_STAT_BHUP ttyI%d\n", info->line); |
1da177e4 | 2125 | #endif |
807c8d81 | 2126 | if (tty_port_active(&info->port)) { |
1da177e4 | 2127 | #ifdef ISDN_DEBUG_MODEM_HUP |
475be4d8 | 2128 | printk(KERN_DEBUG "Mhup in ISDN_STAT_BHUP\n"); |
1da177e4 | 2129 | #endif |
475be4d8 JP |
2130 | isdn_tty_modem_hup(info, 0); |
2131 | return 1; | |
2132 | } | |
2133 | break; | |
2134 | case ISDN_STAT_NODCH: | |
1da177e4 | 2135 | #ifdef ISDN_TTY_STAT_DEBUG |
475be4d8 JP |
2136 | printk(KERN_DEBUG "tty_STAT_NODCH ttyI%d\n", info->line); |
2137 | #endif | |
807c8d81 | 2138 | if (tty_port_active(&info->port)) { |
475be4d8 JP |
2139 | if (info->dialing) { |
2140 | info->dialing = 0; | |
2141 | info->last_l2 = -1; | |
2142 | info->last_si = 0; | |
2143 | sprintf(info->last_cause, "0000"); | |
2144 | isdn_tty_modem_result(RESULT_NO_DIALTONE, info); | |
1da177e4 | 2145 | } |
475be4d8 JP |
2146 | isdn_tty_modem_hup(info, 0); |
2147 | return 1; | |
2148 | } | |
2149 | break; | |
2150 | case ISDN_STAT_UNLOAD: | |
1da177e4 | 2151 | #ifdef ISDN_TTY_STAT_DEBUG |
475be4d8 | 2152 | printk(KERN_DEBUG "tty_STAT_UNLOAD ttyI%d\n", info->line); |
1da177e4 | 2153 | #endif |
475be4d8 JP |
2154 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { |
2155 | info = &dev->mdm.info[i]; | |
2156 | if (info->isdn_driver == c->driver) { | |
2157 | if (info->online) | |
2158 | isdn_tty_modem_hup(info, 1); | |
1da177e4 | 2159 | } |
475be4d8 JP |
2160 | } |
2161 | return 1; | |
1da177e4 | 2162 | #ifdef CONFIG_ISDN_TTY_FAX |
475be4d8 | 2163 | case ISDN_STAT_FAXIND: |
807c8d81 | 2164 | if (tty_port_active(&info->port)) { |
475be4d8 JP |
2165 | isdn_tty_fax_command(info, c); |
2166 | } | |
2167 | break; | |
1da177e4 LT |
2168 | #endif |
2169 | #ifdef CONFIG_ISDN_AUDIO | |
475be4d8 | 2170 | case ISDN_STAT_AUDIO: |
807c8d81 | 2171 | if (tty_port_active(&info->port)) { |
475be4d8 JP |
2172 | switch (c->parm.num[0]) { |
2173 | case ISDN_AUDIO_DTMF: | |
2174 | if (info->vonline) { | |
2175 | isdn_audio_put_dle_code(info, | |
1da177e4 | 2176 | c->parm.num[1]); |
1da177e4 | 2177 | } |
475be4d8 | 2178 | break; |
1da177e4 | 2179 | } |
475be4d8 JP |
2180 | } |
2181 | break; | |
1da177e4 LT |
2182 | #endif |
2183 | } | |
2184 | } | |
2185 | return 0; | |
2186 | } | |
2187 | ||
2188 | /********************************************************************* | |
2189 | Modem-Emulator-Routines | |
475be4d8 | 2190 | *********************************************************************/ |
1da177e4 | 2191 | |
475be4d8 | 2192 | #define cmdchar(c) ((c >= ' ') && (c <= 0x7f)) |
1da177e4 LT |
2193 | |
2194 | /* | |
2195 | * Put a message from the AT-emulator into receive-buffer of tty, | |
2196 | * convert CR, LF, and BS to values in modem-registers 3, 4 and 5. | |
2197 | */ | |
2198 | void | |
475be4d8 | 2199 | isdn_tty_at_cout(char *msg, modem_info *info) |
1da177e4 | 2200 | { |
227434f8 | 2201 | struct tty_port *port = &info->port; |
1da177e4 LT |
2202 | atemu *m = &info->emu; |
2203 | char *p; | |
2204 | char c; | |
2205 | u_long flags; | |
2206 | struct sk_buff *skb = NULL; | |
2207 | char *sp = NULL; | |
1f4d4a80 | 2208 | int l; |
1da177e4 LT |
2209 | |
2210 | if (!msg) { | |
2211 | printk(KERN_WARNING "isdn_tty: Null-Message in isdn_tty_at_cout\n"); | |
2212 | return; | |
2213 | } | |
1f4d4a80 AB |
2214 | |
2215 | l = strlen(msg); | |
2216 | ||
1da177e4 | 2217 | spin_lock_irqsave(&info->readlock, flags); |
a657eecd | 2218 | if (info->closing) { |
1da177e4 LT |
2219 | spin_unlock_irqrestore(&info->readlock, flags); |
2220 | return; | |
2221 | } | |
2222 | ||
33f0f88f AC |
2223 | /* use queue instead of direct, if online and */ |
2224 | /* data is in queue or buffer is full */ | |
227434f8 | 2225 | if (info->online && ((tty_buffer_request_room(port, l) < l) || |
475be4d8 | 2226 | !skb_queue_empty(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel]))) { |
33f0f88f | 2227 | skb = alloc_skb(l, GFP_ATOMIC); |
1da177e4 LT |
2228 | if (!skb) { |
2229 | spin_unlock_irqrestore(&info->readlock, flags); | |
2230 | return; | |
2231 | } | |
33f0f88f | 2232 | sp = skb_put(skb, l); |
1da177e4 LT |
2233 | #ifdef CONFIG_ISDN_AUDIO |
2234 | ISDN_AUDIO_SKB_DLECOUNT(skb) = 0; | |
2235 | ISDN_AUDIO_SKB_LOCK(skb) = 0; | |
2236 | #endif | |
2237 | } | |
2238 | ||
2239 | for (p = msg; *p; p++) { | |
2240 | switch (*p) { | |
475be4d8 JP |
2241 | case '\r': |
2242 | c = m->mdmreg[REG_CR]; | |
2243 | break; | |
2244 | case '\n': | |
2245 | c = m->mdmreg[REG_LF]; | |
2246 | break; | |
2247 | case '\b': | |
2248 | c = m->mdmreg[REG_BS]; | |
2249 | break; | |
2250 | default: | |
2251 | c = *p; | |
1da177e4 LT |
2252 | } |
2253 | if (skb) { | |
2254 | *sp++ = c; | |
2255 | } else { | |
92a19f9c | 2256 | if (tty_insert_flip_char(port, c, TTY_NORMAL) == 0) |
1da177e4 | 2257 | break; |
1da177e4 LT |
2258 | } |
2259 | } | |
2260 | if (skb) { | |
2261 | __skb_queue_tail(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel], skb); | |
2262 | dev->drv[info->isdn_driver]->rcvcount[info->isdn_channel] += skb->len; | |
2263 | spin_unlock_irqrestore(&info->readlock, flags); | |
2264 | /* Schedule dequeuing */ | |
33f0f88f | 2265 | if (dev->modempoll && info->rcvsched) |
1da177e4 LT |
2266 | isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1); |
2267 | ||
2268 | } else { | |
2269 | spin_unlock_irqrestore(&info->readlock, flags); | |
2e124b4a | 2270 | tty_flip_buffer_push(port); |
1da177e4 LT |
2271 | } |
2272 | } | |
2273 | ||
2274 | /* | |
2275 | * Perform ATH Hangup | |
2276 | */ | |
2277 | static void | |
475be4d8 | 2278 | isdn_tty_on_hook(modem_info *info) |
1da177e4 LT |
2279 | { |
2280 | if (info->isdn_channel >= 0) { | |
2281 | #ifdef ISDN_DEBUG_MODEM_HUP | |
2282 | printk(KERN_DEBUG "Mhup in isdn_tty_on_hook\n"); | |
2283 | #endif | |
2284 | isdn_tty_modem_hup(info, 1); | |
2285 | } | |
2286 | } | |
2287 | ||
2288 | static void | |
2289 | isdn_tty_off_hook(void) | |
2290 | { | |
2291 | printk(KERN_DEBUG "isdn_tty_off_hook\n"); | |
2292 | } | |
2293 | ||
475be4d8 JP |
2294 | #define PLUSWAIT1 (HZ / 2) /* 0.5 sec. */ |
2295 | #define PLUSWAIT2 (HZ * 3 / 2) /* 1.5 sec */ | |
1da177e4 LT |
2296 | |
2297 | /* | |
2298 | * Check Buffer for Modem-escape-sequence, activate timer-callback to | |
2299 | * isdn_tty_modem_escape() if sequence found. | |
2300 | * | |
2301 | * Parameters: | |
2302 | * p pointer to databuffer | |
2303 | * plus escape-character | |
2304 | * count length of buffer | |
2305 | * pluscount count of valid escape-characters so far | |
2306 | * lastplus timestamp of last character | |
2307 | */ | |
2308 | static void | |
475be4d8 | 2309 | isdn_tty_check_esc(const u_char *p, u_char plus, int count, int *pluscount, |
1da177e4 LT |
2310 | u_long *lastplus) |
2311 | { | |
2312 | if (plus > 127) | |
2313 | return; | |
2314 | if (count > 3) { | |
2315 | p += count - 3; | |
2316 | count = 3; | |
2317 | *pluscount = 0; | |
2318 | } | |
2319 | while (count > 0) { | |
2320 | if (*(p++) == plus) { | |
2321 | if ((*pluscount)++) { | |
2322 | /* Time since last '+' > 0.5 sec. ? */ | |
2323 | if (time_after(jiffies, *lastplus + PLUSWAIT1)) | |
2324 | *pluscount = 1; | |
2325 | } else { | |
2326 | /* Time since last non-'+' < 1.5 sec. ? */ | |
2327 | if (time_before(jiffies, *lastplus + PLUSWAIT2)) | |
2328 | *pluscount = 0; | |
2329 | } | |
2330 | if ((*pluscount == 3) && (count == 1)) | |
2331 | isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS, 1); | |
2332 | if (*pluscount > 3) | |
2333 | *pluscount = 1; | |
2334 | } else | |
2335 | *pluscount = 0; | |
2336 | *lastplus = jiffies; | |
2337 | count--; | |
2338 | } | |
2339 | } | |
2340 | ||
2341 | /* | |
2342 | * Return result of AT-emulator to tty-receive-buffer, depending on | |
2343 | * modem-register 12, bit 0 and 1. | |
2344 | * For CONNECT-messages also switch to online-mode. | |
2345 | * For RING-message handle auto-ATA if register 0 != 0 | |
2346 | */ | |
2347 | ||
2348 | static void | |
475be4d8 | 2349 | isdn_tty_modem_result(int code, modem_info *info) |
1da177e4 LT |
2350 | { |
2351 | atemu *m = &info->emu; | |
2352 | static char *msg[] = | |
475be4d8 JP |
2353 | {"OK", "CONNECT", "RING", "NO CARRIER", "ERROR", |
2354 | "CONNECT 64000", "NO DIALTONE", "BUSY", "NO ANSWER", | |
2355 | "RINGING", "NO MSN/EAZ", "VCON", "RUNG"}; | |
2356 | char s[ISDN_MSNLEN + 10]; | |
1da177e4 LT |
2357 | |
2358 | switch (code) { | |
475be4d8 JP |
2359 | case RESULT_RING: |
2360 | m->mdmreg[REG_RINGCNT]++; | |
2361 | if (m->mdmreg[REG_RINGCNT] == m->mdmreg[REG_RINGATA]) | |
2362 | /* Automatically accept incoming call */ | |
2363 | isdn_tty_cmd_ATA(info); | |
2364 | break; | |
2365 | case RESULT_NO_CARRIER: | |
1da177e4 | 2366 | #ifdef ISDN_DEBUG_MODEM_HUP |
475be4d8 | 2367 | printk(KERN_DEBUG "modem_result: NO CARRIER %d %d\n", |
a657eecd | 2368 | info->closing, !info->port.tty); |
475be4d8 JP |
2369 | #endif |
2370 | m->mdmreg[REG_RINGCNT] = 0; | |
2371 | del_timer(&info->nc_timer); | |
2372 | info->ncarrier = 0; | |
a657eecd | 2373 | if (info->closing || !info->port.tty) |
475be4d8 | 2374 | return; |
6776a2f0 | 2375 | |
1da177e4 | 2376 | #ifdef CONFIG_ISDN_AUDIO |
475be4d8 | 2377 | if (info->vonline & 1) { |
1da177e4 | 2378 | #ifdef ISDN_DEBUG_MODEM_VOICE |
475be4d8 JP |
2379 | printk(KERN_DEBUG "res3: send DLE-ETX on ttyI%d\n", |
2380 | info->line); | |
1da177e4 | 2381 | #endif |
475be4d8 JP |
2382 | /* voice-recording, add DLE-ETX */ |
2383 | isdn_tty_at_cout("\020\003", info); | |
2384 | } | |
2385 | if (info->vonline & 2) { | |
1da177e4 | 2386 | #ifdef ISDN_DEBUG_MODEM_VOICE |
475be4d8 JP |
2387 | printk(KERN_DEBUG "res3: send DLE-DC4 on ttyI%d\n", |
2388 | info->line); | |
1da177e4 | 2389 | #endif |
475be4d8 JP |
2390 | /* voice-playing, add DLE-DC4 */ |
2391 | isdn_tty_at_cout("\020\024", info); | |
2392 | } | |
1da177e4 | 2393 | #endif |
475be4d8 JP |
2394 | break; |
2395 | case RESULT_CONNECT: | |
2396 | case RESULT_CONNECT64000: | |
2397 | sprintf(info->last_cause, "0000"); | |
2398 | if (!info->online) | |
2399 | info->online = 2; | |
2400 | break; | |
2401 | case RESULT_VCON: | |
1da177e4 | 2402 | #ifdef ISDN_DEBUG_MODEM_VOICE |
475be4d8 JP |
2403 | printk(KERN_DEBUG "res3: send VCON on ttyI%d\n", |
2404 | info->line); | |
1da177e4 | 2405 | #endif |
475be4d8 JP |
2406 | sprintf(info->last_cause, "0000"); |
2407 | if (!info->online) | |
2408 | info->online = 1; | |
2409 | break; | |
2410 | } /* switch (code) */ | |
1da177e4 LT |
2411 | |
2412 | if (m->mdmreg[REG_RESP] & BIT_RESP) { | |
2413 | /* Show results */ | |
2414 | if (m->mdmreg[REG_RESPNUM] & BIT_RESPNUM) { | |
2415 | /* Show numeric results only */ | |
2416 | sprintf(s, "\r\n%d\r\n", code); | |
2417 | isdn_tty_at_cout(s, info); | |
2418 | } else { | |
2419 | if (code == RESULT_RING) { | |
475be4d8 JP |
2420 | /* return if "show RUNG" and ringcounter>1 */ |
2421 | if ((m->mdmreg[REG_RUNG] & BIT_RUNG) && | |
1da177e4 | 2422 | (m->mdmreg[REG_RINGCNT] > 1)) |
475be4d8 JP |
2423 | return; |
2424 | /* print CID, _before_ _every_ ring */ | |
2425 | if (!(m->mdmreg[REG_CIDONCE] & BIT_CIDONCE)) { | |
2426 | isdn_tty_at_cout("\r\nCALLER NUMBER: ", info); | |
2427 | isdn_tty_at_cout(dev->num[info->drv_index], info); | |
2428 | if (m->mdmreg[REG_CDN] & BIT_CDN) { | |
2429 | isdn_tty_at_cout("\r\nCALLED NUMBER: ", info); | |
2430 | isdn_tty_at_cout(info->emu.cpn, info); | |
2431 | } | |
2432 | } | |
1da177e4 LT |
2433 | } |
2434 | isdn_tty_at_cout("\r\n", info); | |
2435 | isdn_tty_at_cout(msg[code], info); | |
2436 | switch (code) { | |
475be4d8 JP |
2437 | case RESULT_CONNECT: |
2438 | switch (m->mdmreg[REG_L2PROT]) { | |
2439 | case ISDN_PROTO_L2_MODEM: | |
2440 | isdn_tty_at_cout(" ", info); | |
2441 | isdn_tty_at_cout(m->connmsg, info); | |
1da177e4 | 2442 | break; |
475be4d8 JP |
2443 | } |
2444 | break; | |
2445 | case RESULT_RING: | |
2446 | /* Append CPN, if enabled */ | |
2447 | if ((m->mdmreg[REG_CPN] & BIT_CPN)) { | |
2448 | sprintf(s, "/%s", m->cpn); | |
2449 | isdn_tty_at_cout(s, info); | |
2450 | } | |
2451 | /* Print CID only once, _after_ 1st RING */ | |
2452 | if ((m->mdmreg[REG_CIDONCE] & BIT_CIDONCE) && | |
2453 | (m->mdmreg[REG_RINGCNT] == 1)) { | |
2454 | isdn_tty_at_cout("\r\n", info); | |
2455 | isdn_tty_at_cout("CALLER NUMBER: ", info); | |
2456 | isdn_tty_at_cout(dev->num[info->drv_index], info); | |
2457 | if (m->mdmreg[REG_CDN] & BIT_CDN) { | |
2458 | isdn_tty_at_cout("\r\nCALLED NUMBER: ", info); | |
2459 | isdn_tty_at_cout(info->emu.cpn, info); | |
1da177e4 | 2460 | } |
475be4d8 JP |
2461 | } |
2462 | break; | |
2463 | case RESULT_NO_CARRIER: | |
2464 | case RESULT_NO_DIALTONE: | |
2465 | case RESULT_BUSY: | |
2466 | case RESULT_NO_ANSWER: | |
2467 | m->mdmreg[REG_RINGCNT] = 0; | |
2468 | /* Append Cause-Message if enabled */ | |
2469 | if (m->mdmreg[REG_RESPXT] & BIT_RESPXT) { | |
2470 | sprintf(s, "/%s", info->last_cause); | |
2471 | isdn_tty_at_cout(s, info); | |
2472 | } | |
2473 | break; | |
2474 | case RESULT_CONNECT64000: | |
2475 | /* Append Protocol to CONNECT message */ | |
2476 | switch (m->mdmreg[REG_L2PROT]) { | |
2477 | case ISDN_PROTO_L2_X75I: | |
2478 | case ISDN_PROTO_L2_X75UI: | |
2479 | case ISDN_PROTO_L2_X75BUI: | |
2480 | isdn_tty_at_cout("/X.75", info); | |
1da177e4 | 2481 | break; |
475be4d8 JP |
2482 | case ISDN_PROTO_L2_HDLC: |
2483 | isdn_tty_at_cout("/HDLC", info); | |
1da177e4 | 2484 | break; |
475be4d8 JP |
2485 | case ISDN_PROTO_L2_V11096: |
2486 | isdn_tty_at_cout("/V110/9600", info); | |
2487 | break; | |
2488 | case ISDN_PROTO_L2_V11019: | |
2489 | isdn_tty_at_cout("/V110/19200", info); | |
2490 | break; | |
2491 | case ISDN_PROTO_L2_V11038: | |
2492 | isdn_tty_at_cout("/V110/38400", info); | |
1da177e4 | 2493 | break; |
475be4d8 JP |
2494 | } |
2495 | if (m->mdmreg[REG_T70] & BIT_T70) { | |
2496 | isdn_tty_at_cout("/T.70", info); | |
2497 | if (m->mdmreg[REG_T70] & BIT_T70_EXT) | |
2498 | isdn_tty_at_cout("+", info); | |
2499 | } | |
2500 | break; | |
1da177e4 LT |
2501 | } |
2502 | isdn_tty_at_cout("\r\n", info); | |
2503 | } | |
2504 | } | |
2505 | if (code == RESULT_NO_CARRIER) { | |
a657eecd | 2506 | if (info->closing || (!info->port.tty)) |
1da177e4 | 2507 | return; |
6776a2f0 | 2508 | |
2d68655d | 2509 | if (tty_port_check_carrier(&info->port)) |
ba43294d | 2510 | tty_hangup(info->port.tty); |
1da177e4 LT |
2511 | } |
2512 | } | |
2513 | ||
2514 | ||
2515 | /* | |
2516 | * Display a modem-register-value. | |
2517 | */ | |
2518 | static void | |
475be4d8 | 2519 | isdn_tty_show_profile(int ridx, modem_info *info) |
1da177e4 LT |
2520 | { |
2521 | char v[6]; | |
2522 | ||
2523 | sprintf(v, "\r\n%d", info->emu.mdmreg[ridx]); | |
2524 | isdn_tty_at_cout(v, info); | |
2525 | } | |
2526 | ||
2527 | /* | |
2528 | * Get MSN-string from char-pointer, set pointer to end of number | |
2529 | */ | |
2530 | static void | |
2531 | isdn_tty_get_msnstr(char *n, char **p) | |
2532 | { | |
2533 | int limit = ISDN_MSNLEN - 1; | |
2534 | ||
2535 | while (((*p[0] >= '0' && *p[0] <= '9') || | |
2536 | /* Why a comma ??? */ | |
2537 | (*p[0] == ',') || (*p[0] == ':')) && | |
475be4d8 | 2538 | (limit--)) |
1da177e4 LT |
2539 | *n++ = *p[0]++; |
2540 | *n = '\0'; | |
2541 | } | |
2542 | ||
2543 | /* | |
2544 | * Get phone-number from modem-commandbuffer | |
2545 | */ | |
2546 | static void | |
475be4d8 | 2547 | isdn_tty_getdial(char *p, char *q, int cnt) |
1da177e4 LT |
2548 | { |
2549 | int first = 1; | |
2550 | int limit = ISDN_MSNLEN - 1; /* MUST match the size of interface var to avoid | |
475be4d8 | 2551 | buffer overflow */ |
1da177e4 | 2552 | |
475be4d8 | 2553 | while (strchr(" 0123456789,#.*WPTSR-", *p) && *p && --cnt > 0) { |
1da177e4 | 2554 | if ((*p >= '0' && *p <= '9') || ((*p == 'S') && first) || |
924ad158 | 2555 | ((*p == 'R') && first) || |
1da177e4 LT |
2556 | (*p == '*') || (*p == '#')) { |
2557 | *q++ = *p; | |
2558 | limit--; | |
2559 | } | |
475be4d8 | 2560 | if (!limit) |
1da177e4 LT |
2561 | break; |
2562 | p++; | |
2563 | first = 0; | |
2564 | } | |
2565 | *q = 0; | |
2566 | } | |
2567 | ||
2568 | #define PARSE_ERROR { isdn_tty_modem_result(RESULT_ERROR, info); return; } | |
2569 | #define PARSE_ERROR1 { isdn_tty_modem_result(RESULT_ERROR, info); return 1; } | |
2570 | ||
2571 | static void | |
475be4d8 | 2572 | isdn_tty_report(modem_info *info) |
1da177e4 LT |
2573 | { |
2574 | atemu *m = &info->emu; | |
2575 | char s[80]; | |
2576 | ||
2577 | isdn_tty_at_cout("\r\nStatistics of last connection:\r\n\r\n", info); | |
2578 | sprintf(s, " Remote Number: %s\r\n", info->last_num); | |
2579 | isdn_tty_at_cout(s, info); | |
2580 | sprintf(s, " Direction: %s\r\n", info->last_dir ? "outgoing" : "incoming"); | |
2581 | isdn_tty_at_cout(s, info); | |
2582 | isdn_tty_at_cout(" Layer-2 Protocol: ", info); | |
2583 | switch (info->last_l2) { | |
475be4d8 JP |
2584 | case ISDN_PROTO_L2_X75I: |
2585 | isdn_tty_at_cout("X.75i", info); | |
2586 | break; | |
2587 | case ISDN_PROTO_L2_X75UI: | |
2588 | isdn_tty_at_cout("X.75ui", info); | |
2589 | break; | |
2590 | case ISDN_PROTO_L2_X75BUI: | |
2591 | isdn_tty_at_cout("X.75bui", info); | |
2592 | break; | |
2593 | case ISDN_PROTO_L2_HDLC: | |
2594 | isdn_tty_at_cout("HDLC", info); | |
2595 | break; | |
2596 | case ISDN_PROTO_L2_V11096: | |
2597 | isdn_tty_at_cout("V.110 9600 Baud", info); | |
2598 | break; | |
2599 | case ISDN_PROTO_L2_V11019: | |
2600 | isdn_tty_at_cout("V.110 19200 Baud", info); | |
2601 | break; | |
2602 | case ISDN_PROTO_L2_V11038: | |
2603 | isdn_tty_at_cout("V.110 38400 Baud", info); | |
2604 | break; | |
2605 | case ISDN_PROTO_L2_TRANS: | |
2606 | isdn_tty_at_cout("transparent", info); | |
2607 | break; | |
2608 | case ISDN_PROTO_L2_MODEM: | |
2609 | isdn_tty_at_cout("modem", info); | |
2610 | break; | |
2611 | case ISDN_PROTO_L2_FAX: | |
2612 | isdn_tty_at_cout("fax", info); | |
2613 | break; | |
2614 | default: | |
2615 | isdn_tty_at_cout("unknown", info); | |
2616 | break; | |
1da177e4 LT |
2617 | } |
2618 | if (m->mdmreg[REG_T70] & BIT_T70) { | |
2619 | isdn_tty_at_cout("/T.70", info); | |
2620 | if (m->mdmreg[REG_T70] & BIT_T70_EXT) | |
2621 | isdn_tty_at_cout("+", info); | |
2622 | } | |
2623 | isdn_tty_at_cout("\r\n", info); | |
2624 | isdn_tty_at_cout(" Service: ", info); | |
2625 | switch (info->last_si) { | |
475be4d8 JP |
2626 | case 1: |
2627 | isdn_tty_at_cout("audio\r\n", info); | |
2628 | break; | |
2629 | case 5: | |
2630 | isdn_tty_at_cout("btx\r\n", info); | |
2631 | break; | |
2632 | case 7: | |
2633 | isdn_tty_at_cout("data\r\n", info); | |
2634 | break; | |
2635 | default: | |
2636 | sprintf(s, "%d\r\n", info->last_si); | |
2637 | isdn_tty_at_cout(s, info); | |
2638 | break; | |
1da177e4 LT |
2639 | } |
2640 | sprintf(s, " Hangup location: %s\r\n", info->last_lhup ? "local" : "remote"); | |
2641 | isdn_tty_at_cout(s, info); | |
2642 | sprintf(s, " Last cause: %s\r\n", info->last_cause); | |
2643 | isdn_tty_at_cout(s, info); | |
2644 | } | |
2645 | ||
2646 | /* | |
2647 | * Parse AT&.. commands. | |
2648 | */ | |
2649 | static int | |
475be4d8 | 2650 | isdn_tty_cmd_ATand(char **p, modem_info *info) |
1da177e4 LT |
2651 | { |
2652 | atemu *m = &info->emu; | |
2653 | int i; | |
2654 | char rb[100]; | |
2655 | ||
2656 | #define MAXRB (sizeof(rb) - 1) | |
2657 | ||
2658 | switch (*p[0]) { | |
475be4d8 JP |
2659 | case 'B': |
2660 | /* &B - Set Buffersize */ | |
2661 | p[0]++; | |
2662 | i = isdn_getnum(p); | |
2663 | if ((i < 0) || (i > ISDN_SERIAL_XMIT_MAX)) | |
2664 | PARSE_ERROR1; | |
1da177e4 | 2665 | #ifdef CONFIG_ISDN_AUDIO |
475be4d8 JP |
2666 | if ((m->mdmreg[REG_SI1] & 1) && (i > VBUF)) |
2667 | PARSE_ERROR1; | |
1da177e4 | 2668 | #endif |
475be4d8 JP |
2669 | m->mdmreg[REG_PSIZE] = i / 16; |
2670 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16; | |
2671 | switch (m->mdmreg[REG_L2PROT]) { | |
2672 | case ISDN_PROTO_L2_V11096: | |
2673 | case ISDN_PROTO_L2_V11019: | |
2674 | case ISDN_PROTO_L2_V11038: | |
2675 | info->xmit_size /= 10; | |
2676 | } | |
2677 | break; | |
2678 | case 'C': | |
2679 | /* &C - DCD Status */ | |
2680 | p[0]++; | |
2681 | switch (isdn_getnum(p)) { | |
2682 | case 0: | |
2683 | m->mdmreg[REG_DCD] &= ~BIT_DCD; | |
1da177e4 | 2684 | break; |
475be4d8 JP |
2685 | case 1: |
2686 | m->mdmreg[REG_DCD] |= BIT_DCD; | |
1da177e4 | 2687 | break; |
475be4d8 JP |
2688 | default: |
2689 | PARSE_ERROR1 | |
2690 | } | |
2691 | break; | |
2692 | case 'D': | |
2693 | /* &D - Set DTR-Low-behavior */ | |
2694 | p[0]++; | |
2695 | switch (isdn_getnum(p)) { | |
2696 | case 0: | |
2697 | m->mdmreg[REG_DTRHUP] &= ~BIT_DTRHUP; | |
2698 | m->mdmreg[REG_DTRR] &= ~BIT_DTRR; | |
1da177e4 | 2699 | break; |
475be4d8 JP |
2700 | case 2: |
2701 | m->mdmreg[REG_DTRHUP] |= BIT_DTRHUP; | |
2702 | m->mdmreg[REG_DTRR] &= ~BIT_DTRR; | |
2703 | break; | |
2704 | case 3: | |
2705 | m->mdmreg[REG_DTRHUP] |= BIT_DTRHUP; | |
2706 | m->mdmreg[REG_DTRR] |= BIT_DTRR; | |
1da177e4 | 2707 | break; |
475be4d8 JP |
2708 | default: |
2709 | PARSE_ERROR1 | |
2710 | } | |
2711 | break; | |
2712 | case 'E': | |
2713 | /* &E -Set EAZ/MSN */ | |
2714 | p[0]++; | |
2715 | isdn_tty_get_msnstr(m->msn, p); | |
2716 | break; | |
2717 | case 'F': | |
2718 | /* &F -Set Factory-Defaults */ | |
2719 | p[0]++; | |
2720 | if (info->msr & UART_MSR_DCD) | |
2721 | PARSE_ERROR1; | |
2722 | isdn_tty_reset_profile(m); | |
2723 | isdn_tty_modem_reset_regs(info, 1); | |
2724 | break; | |
1da177e4 | 2725 | #ifdef DUMMY_HAYES_AT |
475be4d8 JP |
2726 | case 'K': |
2727 | /* only for be compilant with common scripts */ | |
2728 | /* &K Flowcontrol - no function */ | |
2729 | p[0]++; | |
2730 | isdn_getnum(p); | |
2731 | break; | |
2732 | #endif | |
2733 | case 'L': | |
2734 | /* &L -Set Numbers to listen on */ | |
2735 | p[0]++; | |
2736 | i = 0; | |
2737 | while (*p[0] && (strchr("0123456789,-*[]?;", *p[0])) && | |
2738 | (i < ISDN_LMSNLEN - 1)) | |
2739 | m->lmsn[i++] = *p[0]++; | |
2740 | m->lmsn[i] = '\0'; | |
2741 | break; | |
2742 | case 'R': | |
2743 | /* &R - Set V.110 bitrate adaption */ | |
2744 | p[0]++; | |
2745 | i = isdn_getnum(p); | |
2746 | switch (i) { | |
2747 | case 0: | |
2748 | /* Switch off V.110, back to X.75 */ | |
2749 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; | |
2750 | m->mdmreg[REG_SI2] = 0; | |
2751 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16; | |
1da177e4 | 2752 | break; |
475be4d8 JP |
2753 | case 9600: |
2754 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11096; | |
2755 | m->mdmreg[REG_SI2] = 197; | |
2756 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10; | |
1da177e4 | 2757 | break; |
475be4d8 JP |
2758 | case 19200: |
2759 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11019; | |
2760 | m->mdmreg[REG_SI2] = 199; | |
2761 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10; | |
1da177e4 | 2762 | break; |
475be4d8 JP |
2763 | case 38400: |
2764 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11038; | |
2765 | m->mdmreg[REG_SI2] = 198; /* no existing standard for this */ | |
2766 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10; | |
1da177e4 | 2767 | break; |
475be4d8 JP |
2768 | default: |
2769 | PARSE_ERROR1; | |
2770 | } | |
2771 | /* Switch off T.70 */ | |
2772 | m->mdmreg[REG_T70] &= ~(BIT_T70 | BIT_T70_EXT); | |
2773 | /* Set Service 7 */ | |
2774 | m->mdmreg[REG_SI1] |= 4; | |
2775 | break; | |
2776 | case 'S': | |
2777 | /* &S - Set Windowsize */ | |
2778 | p[0]++; | |
2779 | i = isdn_getnum(p); | |
2780 | if ((i > 0) && (i < 9)) | |
2781 | m->mdmreg[REG_WSIZE] = i; | |
2782 | else | |
2783 | PARSE_ERROR1; | |
2784 | break; | |
2785 | case 'V': | |
2786 | /* &V - Show registers */ | |
2787 | p[0]++; | |
2788 | isdn_tty_at_cout("\r\n", info); | |
2789 | for (i = 0; i < ISDN_MODEM_NUMREG; i++) { | |
2790 | sprintf(rb, "S%02d=%03d%s", i, | |
2791 | m->mdmreg[i], ((i + 1) % 10) ? " " : "\r\n"); | |
2792 | isdn_tty_at_cout(rb, info); | |
2793 | } | |
2794 | sprintf(rb, "\r\nEAZ/MSN: %.50s\r\n", | |
2795 | strlen(m->msn) ? m->msn : "None"); | |
2796 | isdn_tty_at_cout(rb, info); | |
2797 | if (strlen(m->lmsn)) { | |
2798 | isdn_tty_at_cout("\r\nListen: ", info); | |
2799 | isdn_tty_at_cout(m->lmsn, info); | |
2800 | isdn_tty_at_cout("\r\n", info); | |
2801 | } | |
2802 | break; | |
2803 | case 'W': | |
2804 | /* &W - Write Profile */ | |
2805 | p[0]++; | |
2806 | switch (*p[0]) { | |
2807 | case '0': | |
1da177e4 | 2808 | p[0]++; |
475be4d8 | 2809 | modem_write_profile(m); |
1da177e4 | 2810 | break; |
475be4d8 JP |
2811 | default: |
2812 | PARSE_ERROR1; | |
2813 | } | |
2814 | break; | |
2815 | case 'X': | |
2816 | /* &X - Switch to BTX-Mode and T.70 */ | |
2817 | p[0]++; | |
2818 | switch (isdn_getnum(p)) { | |
2819 | case 0: | |
2820 | m->mdmreg[REG_T70] &= ~(BIT_T70 | BIT_T70_EXT); | |
2821 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16; | |
2822 | break; | |
2823 | case 1: | |
2824 | m->mdmreg[REG_T70] |= BIT_T70; | |
2825 | m->mdmreg[REG_T70] &= ~BIT_T70_EXT; | |
2826 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; | |
2827 | info->xmit_size = 112; | |
2828 | m->mdmreg[REG_SI1] = 4; | |
2829 | m->mdmreg[REG_SI2] = 0; | |
2830 | break; | |
2831 | case 2: | |
2832 | m->mdmreg[REG_T70] |= (BIT_T70 | BIT_T70_EXT); | |
2833 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; | |
2834 | info->xmit_size = 112; | |
2835 | m->mdmreg[REG_SI1] = 4; | |
2836 | m->mdmreg[REG_SI2] = 0; | |
1da177e4 LT |
2837 | break; |
2838 | default: | |
2839 | PARSE_ERROR1; | |
475be4d8 JP |
2840 | } |
2841 | break; | |
2842 | default: | |
2843 | PARSE_ERROR1; | |
1da177e4 LT |
2844 | } |
2845 | return 0; | |
2846 | } | |
2847 | ||
2848 | static int | |
475be4d8 | 2849 | isdn_tty_check_ats(int mreg, int mval, modem_info *info, atemu *m) |
1da177e4 LT |
2850 | { |
2851 | /* Some plausibility checks */ | |
2852 | switch (mreg) { | |
475be4d8 JP |
2853 | case REG_L2PROT: |
2854 | if (mval > ISDN_PROTO_L2_MAX) | |
2855 | return 1; | |
2856 | break; | |
2857 | case REG_PSIZE: | |
2858 | if ((mval * 16) > ISDN_SERIAL_XMIT_MAX) | |
2859 | return 1; | |
1da177e4 | 2860 | #ifdef CONFIG_ISDN_AUDIO |
475be4d8 | 2861 | if ((m->mdmreg[REG_SI1] & 1) && (mval > VBUFX)) |
1da177e4 | 2862 | return 1; |
475be4d8 JP |
2863 | #endif |
2864 | info->xmit_size = mval * 16; | |
2865 | switch (m->mdmreg[REG_L2PROT]) { | |
2866 | case ISDN_PROTO_L2_V11096: | |
2867 | case ISDN_PROTO_L2_V11019: | |
2868 | case ISDN_PROTO_L2_V11038: | |
2869 | info->xmit_size /= 10; | |
2870 | } | |
2871 | break; | |
2872 | case REG_SI1I: | |
2873 | case REG_PLAN: | |
2874 | case REG_SCREEN: | |
2875 | /* readonly registers */ | |
2876 | return 1; | |
1da177e4 LT |
2877 | } |
2878 | return 0; | |
2879 | } | |
2880 | ||
2881 | /* | |
2882 | * Perform ATS command | |
2883 | */ | |
2884 | static int | |
475be4d8 | 2885 | isdn_tty_cmd_ATS(char **p, modem_info *info) |
1da177e4 LT |
2886 | { |
2887 | atemu *m = &info->emu; | |
2888 | int bitpos; | |
2889 | int mreg; | |
2890 | int mval; | |
2891 | int bval; | |
2892 | ||
2893 | mreg = isdn_getnum(p); | |
2894 | if (mreg < 0 || mreg >= ISDN_MODEM_NUMREG) | |
2895 | PARSE_ERROR1; | |
2896 | switch (*p[0]) { | |
475be4d8 JP |
2897 | case '=': |
2898 | p[0]++; | |
2899 | mval = isdn_getnum(p); | |
2900 | if (mval < 0 || mval > 255) | |
2901 | PARSE_ERROR1; | |
2902 | if (isdn_tty_check_ats(mreg, mval, info, m)) | |
2903 | PARSE_ERROR1; | |
2904 | m->mdmreg[mreg] = mval; | |
2905 | break; | |
2906 | case '.': | |
2907 | /* Set/Clear a single bit */ | |
2908 | p[0]++; | |
2909 | bitpos = isdn_getnum(p); | |
2910 | if ((bitpos < 0) || (bitpos > 7)) | |
2911 | PARSE_ERROR1; | |
2912 | switch (*p[0]) { | |
1da177e4 LT |
2913 | case '=': |
2914 | p[0]++; | |
475be4d8 JP |
2915 | bval = isdn_getnum(p); |
2916 | if (bval < 0 || bval > 1) | |
1da177e4 | 2917 | PARSE_ERROR1; |
475be4d8 JP |
2918 | if (bval) |
2919 | mval = m->mdmreg[mreg] | (1 << bitpos); | |
2920 | else | |
2921 | mval = m->mdmreg[mreg] & ~(1 << bitpos); | |
1da177e4 LT |
2922 | if (isdn_tty_check_ats(mreg, mval, info, m)) |
2923 | PARSE_ERROR1; | |
2924 | m->mdmreg[mreg] = mval; | |
2925 | break; | |
1da177e4 LT |
2926 | case '?': |
2927 | p[0]++; | |
475be4d8 JP |
2928 | isdn_tty_at_cout("\r\n", info); |
2929 | isdn_tty_at_cout((m->mdmreg[mreg] & (1 << bitpos)) ? "1" : "0", | |
2930 | info); | |
1da177e4 LT |
2931 | break; |
2932 | default: | |
2933 | PARSE_ERROR1; | |
475be4d8 JP |
2934 | } |
2935 | break; | |
2936 | case '?': | |
2937 | p[0]++; | |
2938 | isdn_tty_show_profile(mreg, info); | |
2939 | break; | |
2940 | default: | |
2941 | PARSE_ERROR1; | |
2942 | break; | |
1da177e4 LT |
2943 | } |
2944 | return 0; | |
2945 | } | |
2946 | ||
2947 | /* | |
2948 | * Perform ATA command | |
2949 | */ | |
2950 | static void | |
475be4d8 | 2951 | isdn_tty_cmd_ATA(modem_info *info) |
1da177e4 LT |
2952 | { |
2953 | atemu *m = &info->emu; | |
2954 | isdn_ctrl cmd; | |
2955 | int l2; | |
2956 | ||
2957 | if (info->msr & UART_MSR_RI) { | |
2958 | /* Accept incoming call */ | |
2959 | info->last_dir = 0; | |
2960 | strcpy(info->last_num, dev->num[info->drv_index]); | |
2961 | m->mdmreg[REG_RINGCNT] = 0; | |
2962 | info->msr &= ~UART_MSR_RI; | |
2963 | l2 = m->mdmreg[REG_L2PROT]; | |
2964 | #ifdef CONFIG_ISDN_AUDIO | |
2965 | /* If more than one bit set in reg18, autoselect Layer2 */ | |
2966 | if ((m->mdmreg[REG_SI1] & m->mdmreg[REG_SI1I]) != m->mdmreg[REG_SI1]) { | |
2967 | if (m->mdmreg[REG_SI1I] == 1) { | |
2968 | if ((l2 != ISDN_PROTO_L2_MODEM) && (l2 != ISDN_PROTO_L2_FAX)) | |
2969 | l2 = ISDN_PROTO_L2_TRANS; | |
2970 | } else | |
2971 | l2 = ISDN_PROTO_L2_X75I; | |
2972 | } | |
2973 | #endif | |
2974 | cmd.driver = info->isdn_driver; | |
2975 | cmd.command = ISDN_CMD_SETL2; | |
2976 | cmd.arg = info->isdn_channel + (l2 << 8); | |
2977 | info->last_l2 = l2; | |
2978 | isdn_command(&cmd); | |
2979 | cmd.driver = info->isdn_driver; | |
2980 | cmd.command = ISDN_CMD_SETL3; | |
2981 | cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); | |
2982 | #ifdef CONFIG_ISDN_TTY_FAX | |
2983 | if (l2 == ISDN_PROTO_L2_FAX) { | |
2984 | cmd.parm.fax = info->fax; | |
2985 | info->fax->direction = ISDN_TTY_FAX_CONN_IN; | |
2986 | } | |
2987 | #endif | |
2988 | isdn_command(&cmd); | |
2989 | cmd.driver = info->isdn_driver; | |
2990 | cmd.arg = info->isdn_channel; | |
2991 | cmd.command = ISDN_CMD_ACCEPTD; | |
2992 | info->dialing = 16; | |
2993 | info->emu.carrierwait = 0; | |
2994 | isdn_command(&cmd); | |
2995 | isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1); | |
2996 | } else | |
2997 | isdn_tty_modem_result(RESULT_NO_ANSWER, info); | |
2998 | } | |
2999 | ||
3000 | #ifdef CONFIG_ISDN_AUDIO | |
3001 | /* | |
3002 | * Parse AT+F.. commands | |
3003 | */ | |
3004 | static int | |
475be4d8 | 3005 | isdn_tty_cmd_PLUSF(char **p, modem_info *info) |
1da177e4 LT |
3006 | { |
3007 | atemu *m = &info->emu; | |
3008 | char rs[20]; | |
3009 | ||
3010 | if (!strncmp(p[0], "CLASS", 5)) { | |
3011 | p[0] += 5; | |
3012 | switch (*p[0]) { | |
475be4d8 JP |
3013 | case '?': |
3014 | p[0]++; | |
3015 | sprintf(rs, "\r\n%d", | |
3016 | (m->mdmreg[REG_SI1] & 1) ? 8 : 0); | |
1da177e4 | 3017 | #ifdef CONFIG_ISDN_TTY_FAX |
475be4d8 JP |
3018 | if (TTY_IS_FCLASS2(info)) |
3019 | sprintf(rs, "\r\n2"); | |
3020 | else if (TTY_IS_FCLASS1(info)) | |
3021 | sprintf(rs, "\r\n1"); | |
1da177e4 | 3022 | #endif |
475be4d8 JP |
3023 | isdn_tty_at_cout(rs, info); |
3024 | break; | |
3025 | case '=': | |
3026 | p[0]++; | |
3027 | switch (*p[0]) { | |
3028 | case '0': | |
1da177e4 | 3029 | p[0]++; |
475be4d8 JP |
3030 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; |
3031 | m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_TRANS; | |
3032 | m->mdmreg[REG_SI1] = 4; | |
3033 | info->xmit_size = | |
3034 | m->mdmreg[REG_PSIZE] * 16; | |
3035 | break; | |
1da177e4 | 3036 | #ifdef CONFIG_ISDN_TTY_FAX |
475be4d8 JP |
3037 | case '1': |
3038 | p[0]++; | |
3039 | if (!(dev->global_features & | |
3040 | ISDN_FEATURE_L3_FCLASS1)) | |
3041 | PARSE_ERROR1; | |
3042 | m->mdmreg[REG_SI1] = 1; | |
3043 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_FAX; | |
3044 | m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_FCLASS1; | |
3045 | info->xmit_size = | |
3046 | m->mdmreg[REG_PSIZE] * 16; | |
3047 | break; | |
3048 | case '2': | |
3049 | p[0]++; | |
3050 | if (!(dev->global_features & | |
3051 | ISDN_FEATURE_L3_FCLASS2)) | |
3052 | PARSE_ERROR1; | |
3053 | m->mdmreg[REG_SI1] = 1; | |
3054 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_FAX; | |
3055 | m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_FCLASS2; | |
3056 | info->xmit_size = | |
3057 | m->mdmreg[REG_PSIZE] * 16; | |
3058 | break; | |
1da177e4 | 3059 | #endif |
475be4d8 JP |
3060 | case '8': |
3061 | p[0]++; | |
3062 | /* L2 will change on dialout with si=1 */ | |
3063 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; | |
3064 | m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_TRANS; | |
3065 | m->mdmreg[REG_SI1] = 5; | |
3066 | info->xmit_size = VBUF; | |
3067 | break; | |
3068 | case '?': | |
3069 | p[0]++; | |
3070 | strcpy(rs, "\r\n0,"); | |
1da177e4 | 3071 | #ifdef CONFIG_ISDN_TTY_FAX |
475be4d8 JP |
3072 | if (dev->global_features & |
3073 | ISDN_FEATURE_L3_FCLASS1) | |
3074 | strcat(rs, "1,"); | |
3075 | if (dev->global_features & | |
3076 | ISDN_FEATURE_L3_FCLASS2) | |
3077 | strcat(rs, "2,"); | |
3078 | #endif | |
3079 | strcat(rs, "8"); | |
3080 | isdn_tty_at_cout(rs, info); | |
1da177e4 LT |
3081 | break; |
3082 | default: | |
3083 | PARSE_ERROR1; | |
475be4d8 JP |
3084 | } |
3085 | break; | |
3086 | default: | |
3087 | PARSE_ERROR1; | |
1da177e4 LT |
3088 | } |
3089 | return 0; | |
3090 | } | |
3091 | #ifdef CONFIG_ISDN_TTY_FAX | |
3092 | return (isdn_tty_cmd_PLUSF_FAX(p, info)); | |
3093 | #else | |
3094 | PARSE_ERROR1; | |
3095 | #endif | |
3096 | } | |
3097 | ||
3098 | /* | |
3099 | * Parse AT+V.. commands | |
3100 | */ | |
3101 | static int | |
475be4d8 | 3102 | isdn_tty_cmd_PLUSV(char **p, modem_info *info) |
1da177e4 LT |
3103 | { |
3104 | atemu *m = &info->emu; | |
3105 | isdn_ctrl cmd; | |
3106 | static char *vcmd[] = | |
475be4d8 | 3107 | {"NH", "IP", "LS", "RX", "SD", "SM", "TX", "DD", NULL}; |
1da177e4 LT |
3108 | int i; |
3109 | int par1; | |
3110 | int par2; | |
3111 | char rs[20]; | |
3112 | ||
3113 | i = 0; | |
3114 | while (vcmd[i]) { | |
3115 | if (!strncmp(vcmd[i], p[0], 2)) { | |
3116 | p[0] += 2; | |
3117 | break; | |
3118 | } | |
3119 | i++; | |
3120 | } | |
3121 | switch (i) { | |
475be4d8 JP |
3122 | case 0: |
3123 | /* AT+VNH - Auto hangup feature */ | |
3124 | switch (*p[0]) { | |
3125 | case '?': | |
3126 | p[0]++; | |
3127 | isdn_tty_at_cout("\r\n1", info); | |
3128 | break; | |
3129 | case '=': | |
3130 | p[0]++; | |
1da177e4 | 3131 | switch (*p[0]) { |
475be4d8 JP |
3132 | case '1': |
3133 | p[0]++; | |
3134 | break; | |
3135 | case '?': | |
3136 | p[0]++; | |
3137 | isdn_tty_at_cout("\r\n1", info); | |
3138 | break; | |
3139 | default: | |
3140 | PARSE_ERROR1; | |
1da177e4 LT |
3141 | } |
3142 | break; | |
475be4d8 JP |
3143 | default: |
3144 | PARSE_ERROR1; | |
3145 | } | |
3146 | break; | |
3147 | case 1: | |
3148 | /* AT+VIP - Reset all voice parameters */ | |
3149 | isdn_tty_modem_reset_vpar(m); | |
3150 | break; | |
3151 | case 2: | |
3152 | /* AT+VLS - Select device, accept incoming call */ | |
3153 | switch (*p[0]) { | |
3154 | case '?': | |
3155 | p[0]++; | |
3156 | sprintf(rs, "\r\n%d", m->vpar[0]); | |
3157 | isdn_tty_at_cout(rs, info); | |
1da177e4 | 3158 | break; |
475be4d8 JP |
3159 | case '=': |
3160 | p[0]++; | |
1da177e4 | 3161 | switch (*p[0]) { |
475be4d8 JP |
3162 | case '0': |
3163 | p[0]++; | |
3164 | m->vpar[0] = 0; | |
3165 | break; | |
3166 | case '2': | |
3167 | p[0]++; | |
3168 | m->vpar[0] = 2; | |
3169 | break; | |
3170 | case '?': | |
3171 | p[0]++; | |
3172 | isdn_tty_at_cout("\r\n0,2", info); | |
3173 | break; | |
3174 | default: | |
1da177e4 LT |
3175 | PARSE_ERROR1; |
3176 | } | |
475be4d8 JP |
3177 | break; |
3178 | default: | |
3179 | PARSE_ERROR1; | |
3180 | } | |
3181 | break; | |
3182 | case 3: | |
3183 | /* AT+VRX - Start recording */ | |
3184 | if (!m->vpar[0]) | |
3185 | PARSE_ERROR1; | |
3186 | if (info->online != 1) { | |
3187 | isdn_tty_modem_result(RESULT_NO_ANSWER, info); | |
3188 | return 1; | |
3189 | } | |
3190 | info->dtmf_state = isdn_audio_dtmf_init(info->dtmf_state); | |
3191 | if (!info->dtmf_state) { | |
3192 | printk(KERN_WARNING "isdn_tty: Couldn't malloc dtmf state\n"); | |
3193 | PARSE_ERROR1; | |
3194 | } | |
3195 | info->silence_state = isdn_audio_silence_init(info->silence_state); | |
3196 | if (!info->silence_state) { | |
3197 | printk(KERN_WARNING "isdn_tty: Couldn't malloc silence state\n"); | |
3198 | PARSE_ERROR1; | |
3199 | } | |
3200 | if (m->vpar[3] < 5) { | |
3201 | info->adpcmr = isdn_audio_adpcm_init(info->adpcmr, m->vpar[3]); | |
3202 | if (!info->adpcmr) { | |
3203 | printk(KERN_WARNING "isdn_tty: Couldn't malloc adpcm state\n"); | |
1da177e4 LT |
3204 | PARSE_ERROR1; |
3205 | } | |
475be4d8 | 3206 | } |
1da177e4 | 3207 | #ifdef ISDN_DEBUG_AT |
475be4d8 | 3208 | printk(KERN_DEBUG "AT: +VRX\n"); |
1da177e4 | 3209 | #endif |
475be4d8 JP |
3210 | info->vonline |= 1; |
3211 | isdn_tty_modem_result(RESULT_CONNECT, info); | |
3212 | return 0; | |
3213 | break; | |
3214 | case 4: | |
3215 | /* AT+VSD - Silence detection */ | |
3216 | switch (*p[0]) { | |
3217 | case '?': | |
3218 | p[0]++; | |
3219 | sprintf(rs, "\r\n<%d>,<%d>", | |
3220 | m->vpar[1], | |
3221 | m->vpar[2]); | |
3222 | isdn_tty_at_cout(rs, info); | |
1da177e4 | 3223 | break; |
475be4d8 JP |
3224 | case '=': |
3225 | p[0]++; | |
3226 | if ((*p[0] >= '0') && (*p[0] <= '9')) { | |
3227 | par1 = isdn_getnum(p); | |
3228 | if ((par1 < 0) || (par1 > 31)) | |
1da177e4 | 3229 | PARSE_ERROR1; |
475be4d8 | 3230 | if (*p[0] != ',') |
1da177e4 | 3231 | PARSE_ERROR1; |
475be4d8 JP |
3232 | p[0]++; |
3233 | par2 = isdn_getnum(p); | |
3234 | if ((par2 < 0) || (par2 > 255)) | |
3235 | PARSE_ERROR1; | |
3236 | m->vpar[1] = par1; | |
3237 | m->vpar[2] = par2; | |
3238 | break; | |
3239 | } else | |
3240 | if (*p[0] == '?') { | |
1da177e4 | 3241 | p[0]++; |
475be4d8 JP |
3242 | isdn_tty_at_cout("\r\n<0-31>,<0-255>", |
3243 | info); | |
1da177e4 | 3244 | break; |
475be4d8 | 3245 | } else |
1da177e4 | 3246 | PARSE_ERROR1; |
1da177e4 | 3247 | break; |
475be4d8 JP |
3248 | default: |
3249 | PARSE_ERROR1; | |
3250 | } | |
3251 | break; | |
3252 | case 5: | |
3253 | /* AT+VSM - Select compression */ | |
3254 | switch (*p[0]) { | |
3255 | case '?': | |
3256 | p[0]++; | |
3257 | sprintf(rs, "\r\n<%d>,<%d><8000>", | |
3258 | m->vpar[3], | |
3259 | m->vpar[1]); | |
3260 | isdn_tty_at_cout(rs, info); | |
3261 | break; | |
3262 | case '=': | |
3263 | p[0]++; | |
3264 | switch (*p[0]) { | |
3265 | case '2': | |
3266 | case '3': | |
3267 | case '4': | |
3268 | case '5': | |
3269 | case '6': | |
3270 | par1 = isdn_getnum(p); | |
3271 | if ((par1 < 2) || (par1 > 6)) | |
3272 | PARSE_ERROR1; | |
3273 | m->vpar[3] = par1; | |
3274 | break; | |
3275 | case '?': | |
3276 | p[0]++; | |
3277 | isdn_tty_at_cout("\r\n2;ADPCM;2;0;(8000)\r\n", | |
3278 | info); | |
3279 | isdn_tty_at_cout("3;ADPCM;3;0;(8000)\r\n", | |
3280 | info); | |
3281 | isdn_tty_at_cout("4;ADPCM;4;0;(8000)\r\n", | |
3282 | info); | |
3283 | isdn_tty_at_cout("5;ALAW;8;0;(8000)\r\n", | |
3284 | info); | |
3285 | isdn_tty_at_cout("6;ULAW;8;0;(8000)\r\n", | |
3286 | info); | |
3287 | break; | |
3288 | default: | |
1da177e4 | 3289 | PARSE_ERROR1; |
1da177e4 | 3290 | } |
475be4d8 JP |
3291 | break; |
3292 | default: | |
3293 | PARSE_ERROR1; | |
3294 | } | |
3295 | break; | |
3296 | case 6: | |
3297 | /* AT+VTX - Start sending */ | |
3298 | if (!m->vpar[0]) | |
3299 | PARSE_ERROR1; | |
3300 | if (info->online != 1) { | |
3301 | isdn_tty_modem_result(RESULT_NO_ANSWER, info); | |
3302 | return 1; | |
3303 | } | |
3304 | info->dtmf_state = isdn_audio_dtmf_init(info->dtmf_state); | |
3305 | if (!info->dtmf_state) { | |
3306 | printk(KERN_WARNING "isdn_tty: Couldn't malloc dtmf state\n"); | |
3307 | PARSE_ERROR1; | |
3308 | } | |
3309 | if (m->vpar[3] < 5) { | |
3310 | info->adpcms = isdn_audio_adpcm_init(info->adpcms, m->vpar[3]); | |
3311 | if (!info->adpcms) { | |
3312 | printk(KERN_WARNING "isdn_tty: Couldn't malloc adpcm state\n"); | |
1da177e4 LT |
3313 | PARSE_ERROR1; |
3314 | } | |
475be4d8 | 3315 | } |
1da177e4 | 3316 | #ifdef ISDN_DEBUG_AT |
475be4d8 | 3317 | printk(KERN_DEBUG "AT: +VTX\n"); |
1da177e4 | 3318 | #endif |
475be4d8 JP |
3319 | m->lastDLE = 0; |
3320 | info->vonline |= 2; | |
3321 | isdn_tty_modem_result(RESULT_CONNECT, info); | |
3322 | return 0; | |
3323 | break; | |
3324 | case 7: | |
3325 | /* AT+VDD - DTMF detection */ | |
3326 | switch (*p[0]) { | |
3327 | case '?': | |
3328 | p[0]++; | |
3329 | sprintf(rs, "\r\n<%d>,<%d>", | |
3330 | m->vpar[4], | |
3331 | m->vpar[5]); | |
3332 | isdn_tty_at_cout(rs, info); | |
1da177e4 | 3333 | break; |
475be4d8 JP |
3334 | case '=': |
3335 | p[0]++; | |
3336 | if ((*p[0] >= '0') && (*p[0] <= '9')) { | |
3337 | if (info->online != 1) | |
3338 | PARSE_ERROR1; | |
3339 | par1 = isdn_getnum(p); | |
3340 | if ((par1 < 0) || (par1 > 15)) | |
3341 | PARSE_ERROR1; | |
3342 | if (*p[0] != ',') | |
1da177e4 | 3343 | PARSE_ERROR1; |
475be4d8 JP |
3344 | p[0]++; |
3345 | par2 = isdn_getnum(p); | |
3346 | if ((par2 < 0) || (par2 > 255)) | |
3347 | PARSE_ERROR1; | |
3348 | m->vpar[4] = par1; | |
3349 | m->vpar[5] = par2; | |
3350 | cmd.driver = info->isdn_driver; | |
3351 | cmd.command = ISDN_CMD_AUDIO; | |
3352 | cmd.arg = info->isdn_channel + (ISDN_AUDIO_SETDD << 8); | |
3353 | cmd.parm.num[0] = par1; | |
3354 | cmd.parm.num[1] = par2; | |
3355 | isdn_command(&cmd); | |
3356 | break; | |
3357 | } else | |
3358 | if (*p[0] == '?') { | |
3359 | p[0]++; | |
3360 | isdn_tty_at_cout("\r\n<0-15>,<0-255>", | |
3361 | info); | |
1da177e4 | 3362 | break; |
475be4d8 | 3363 | } else |
1da177e4 | 3364 | PARSE_ERROR1; |
1da177e4 LT |
3365 | break; |
3366 | default: | |
3367 | PARSE_ERROR1; | |
475be4d8 JP |
3368 | } |
3369 | break; | |
3370 | default: | |
3371 | PARSE_ERROR1; | |
1da177e4 LT |
3372 | } |
3373 | return 0; | |
3374 | } | |
3375 | #endif /* CONFIG_ISDN_AUDIO */ | |
3376 | ||
3377 | /* | |
3378 | * Parse and perform an AT-command-line. | |
3379 | */ | |
3380 | static void | |
475be4d8 | 3381 | isdn_tty_parse_at(modem_info *info) |
1da177e4 LT |
3382 | { |
3383 | atemu *m = &info->emu; | |
3384 | char *p; | |
f417f5e4 | 3385 | char ds[ISDN_MSNLEN]; |
1da177e4 LT |
3386 | |
3387 | #ifdef ISDN_DEBUG_AT | |
3388 | printk(KERN_DEBUG "AT: '%s'\n", m->mdmcmd); | |
3389 | #endif | |
3390 | for (p = &m->mdmcmd[2]; *p;) { | |
3391 | switch (*p) { | |
475be4d8 JP |
3392 | case ' ': |
3393 | p++; | |
3394 | break; | |
3395 | case 'A': | |
3396 | /* A - Accept incoming call */ | |
3397 | p++; | |
3398 | isdn_tty_cmd_ATA(info); | |
3399 | return; | |
475be4d8 JP |
3400 | case 'D': |
3401 | /* D - Dial */ | |
3402 | if (info->msr & UART_MSR_DCD) | |
3403 | PARSE_ERROR; | |
3404 | if (info->msr & UART_MSR_RI) { | |
3405 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
3406 | return; | |
3407 | } | |
3408 | isdn_tty_getdial(++p, ds, sizeof ds); | |
3409 | p += strlen(p); | |
3410 | if (!strlen(m->msn)) | |
3411 | isdn_tty_modem_result(RESULT_NO_MSN_EAZ, info); | |
3412 | else if (strlen(ds)) | |
3413 | isdn_tty_dial(ds, info, m); | |
3414 | else | |
3415 | PARSE_ERROR; | |
3416 | return; | |
3417 | case 'E': | |
3418 | /* E - Turn Echo on/off */ | |
3419 | p++; | |
3420 | switch (isdn_getnum(&p)) { | |
3421 | case 0: | |
3422 | m->mdmreg[REG_ECHO] &= ~BIT_ECHO; | |
1da177e4 | 3423 | break; |
475be4d8 JP |
3424 | case 1: |
3425 | m->mdmreg[REG_ECHO] |= BIT_ECHO; | |
3426 | break; | |
3427 | default: | |
3428 | PARSE_ERROR; | |
3429 | } | |
3430 | break; | |
3431 | case 'H': | |
3432 | /* H - On/Off-hook */ | |
3433 | p++; | |
3434 | switch (*p) { | |
3435 | case '0': | |
1da177e4 | 3436 | p++; |
475be4d8 | 3437 | isdn_tty_on_hook(info); |
1da177e4 | 3438 | break; |
475be4d8 | 3439 | case '1': |
1da177e4 | 3440 | p++; |
475be4d8 | 3441 | isdn_tty_off_hook(); |
1da177e4 | 3442 | break; |
475be4d8 JP |
3443 | default: |
3444 | isdn_tty_on_hook(info); | |
3445 | break; | |
3446 | } | |
3447 | break; | |
3448 | case 'I': | |
3449 | /* I - Information */ | |
3450 | p++; | |
3451 | isdn_tty_at_cout("\r\nLinux ISDN", info); | |
3452 | switch (*p) { | |
3453 | case '0': | |
3454 | case '1': | |
1da177e4 | 3455 | p++; |
1da177e4 | 3456 | break; |
475be4d8 | 3457 | case '2': |
1da177e4 | 3458 | p++; |
475be4d8 | 3459 | isdn_tty_report(info); |
1da177e4 | 3460 | break; |
475be4d8 | 3461 | case '3': |
1da177e4 | 3462 | p++; |
475be4d8 JP |
3463 | snprintf(ds, sizeof(ds), "\r\n%d", info->emu.charge); |
3464 | isdn_tty_at_cout(ds, info); | |
1da177e4 | 3465 | break; |
475be4d8 JP |
3466 | default:; |
3467 | } | |
3468 | break; | |
3469 | #ifdef DUMMY_HAYES_AT | |
3470 | case 'L': | |
3471 | case 'M': | |
3472 | /* only for be compilant with common scripts */ | |
3473 | /* no function */ | |
3474 | p++; | |
3475 | isdn_getnum(&p); | |
3476 | break; | |
1da177e4 | 3477 | #endif |
475be4d8 JP |
3478 | case 'O': |
3479 | /* O - Go online */ | |
3480 | p++; | |
3481 | if (info->msr & UART_MSR_DCD) | |
3482 | /* if B-Channel is up */ | |
3483 | isdn_tty_modem_result((m->mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM) ? RESULT_CONNECT : RESULT_CONNECT64000, info); | |
3484 | else | |
3485 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
3486 | return; | |
3487 | case 'Q': | |
3488 | /* Q - Turn Emulator messages on/off */ | |
3489 | p++; | |
3490 | switch (isdn_getnum(&p)) { | |
3491 | case 0: | |
3492 | m->mdmreg[REG_RESP] |= BIT_RESP; | |
3493 | break; | |
3494 | case 1: | |
3495 | m->mdmreg[REG_RESP] &= ~BIT_RESP; | |
3496 | break; | |
3497 | default: | |
3498 | PARSE_ERROR; | |
3499 | } | |
3500 | break; | |
3501 | case 'S': | |
3502 | /* S - Set/Get Register */ | |
3503 | p++; | |
3504 | if (isdn_tty_cmd_ATS(&p, info)) | |
1da177e4 | 3505 | return; |
475be4d8 JP |
3506 | break; |
3507 | case 'V': | |
3508 | /* V - Numeric or ASCII Emulator-messages */ | |
3509 | p++; | |
3510 | switch (isdn_getnum(&p)) { | |
3511 | case 0: | |
3512 | m->mdmreg[REG_RESP] |= BIT_RESPNUM; | |
3513 | break; | |
3514 | case 1: | |
3515 | m->mdmreg[REG_RESP] &= ~BIT_RESPNUM; | |
1da177e4 | 3516 | break; |
475be4d8 JP |
3517 | default: |
3518 | PARSE_ERROR; | |
3519 | } | |
3520 | break; | |
3521 | case 'Z': | |
3522 | /* Z - Load Registers from Profile */ | |
3523 | p++; | |
3524 | if (info->msr & UART_MSR_DCD) { | |
3525 | info->online = 0; | |
3526 | isdn_tty_on_hook(info); | |
3527 | } | |
3528 | isdn_tty_modem_reset_regs(info, 1); | |
3529 | break; | |
3530 | case '+': | |
3531 | p++; | |
3532 | switch (*p) { | |
3533 | #ifdef CONFIG_ISDN_AUDIO | |
3534 | case 'F': | |
1da177e4 | 3535 | p++; |
475be4d8 | 3536 | if (isdn_tty_cmd_PLUSF(&p, info)) |
1da177e4 LT |
3537 | return; |
3538 | break; | |
3539 | case 'V': | |
475be4d8 JP |
3540 | if ((!(m->mdmreg[REG_SI1] & 1)) || |
3541 | (m->mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM)) | |
3542 | PARSE_ERROR; | |
1da177e4 | 3543 | p++; |
475be4d8 JP |
3544 | if (isdn_tty_cmd_PLUSV(&p, info)) |
3545 | return; | |
1da177e4 | 3546 | break; |
475be4d8 JP |
3547 | #endif /* CONFIG_ISDN_AUDIO */ |
3548 | case 'S': /* SUSPEND */ | |
1da177e4 | 3549 | p++; |
475be4d8 JP |
3550 | isdn_tty_get_msnstr(ds, &p); |
3551 | isdn_tty_suspend(ds, info, m); | |
1da177e4 | 3552 | break; |
475be4d8 | 3553 | case 'R': /* RESUME */ |
1da177e4 | 3554 | p++; |
475be4d8 JP |
3555 | isdn_tty_get_msnstr(ds, &p); |
3556 | isdn_tty_resume(ds, info, m); | |
1da177e4 | 3557 | break; |
475be4d8 | 3558 | case 'M': /* MESSAGE */ |
1da177e4 | 3559 | p++; |
475be4d8 | 3560 | isdn_tty_send_msg(info, m, p); |
1da177e4 LT |
3561 | break; |
3562 | default: | |
3563 | PARSE_ERROR; | |
475be4d8 JP |
3564 | } |
3565 | break; | |
3566 | case '&': | |
3567 | p++; | |
3568 | if (isdn_tty_cmd_ATand(&p, info)) | |
3569 | return; | |
3570 | break; | |
3571 | default: | |
3572 | PARSE_ERROR; | |
1da177e4 LT |
3573 | } |
3574 | } | |
3575 | #ifdef CONFIG_ISDN_AUDIO | |
3576 | if (!info->vonline) | |
3577 | #endif | |
3578 | isdn_tty_modem_result(RESULT_OK, info); | |
3579 | } | |
3580 | ||
3581 | /* Need own toupper() because standard-toupper is not available | |
3582 | * within modules. | |
3583 | */ | |
475be4d8 | 3584 | #define my_toupper(c) (((c >= 'a') && (c <= 'z')) ? (c & 0xdf) : c) |
1da177e4 LT |
3585 | |
3586 | /* | |
3587 | * Perform line-editing of AT-commands | |
3588 | * | |
3589 | * Parameters: | |
3590 | * p inputbuffer | |
3591 | * count length of buffer | |
3592 | * channel index to line (minor-device) | |
3593 | */ | |
3594 | static int | |
475be4d8 | 3595 | isdn_tty_edit_at(const char *p, int count, modem_info *info) |
1da177e4 LT |
3596 | { |
3597 | atemu *m = &info->emu; | |
3598 | int total = 0; | |
3599 | u_char c; | |
3600 | char eb[2]; | |
3601 | int cnt; | |
3602 | ||
3603 | for (cnt = count; cnt > 0; p++, cnt--) { | |
3604 | c = *p; | |
3605 | total++; | |
3606 | if (c == m->mdmreg[REG_CR] || c == m->mdmreg[REG_LF]) { | |
3607 | /* Separator (CR or LF) */ | |
3608 | m->mdmcmd[m->mdmcmdl] = 0; | |
3609 | if (m->mdmreg[REG_ECHO] & BIT_ECHO) { | |
3610 | eb[0] = c; | |
3611 | eb[1] = 0; | |
3612 | isdn_tty_at_cout(eb, info); | |
3613 | } | |
3614 | if ((m->mdmcmdl >= 2) && (!(strncmp(m->mdmcmd, "AT", 2)))) | |
3615 | isdn_tty_parse_at(info); | |
3616 | m->mdmcmdl = 0; | |
3617 | continue; | |
3618 | } | |
3619 | if (c == m->mdmreg[REG_BS] && m->mdmreg[REG_BS] < 128) { | |
3620 | /* Backspace-Function */ | |
3621 | if ((m->mdmcmdl > 2) || (!m->mdmcmdl)) { | |
3622 | if (m->mdmcmdl) | |
3623 | m->mdmcmdl--; | |
3624 | if (m->mdmreg[REG_ECHO] & BIT_ECHO) | |
3625 | isdn_tty_at_cout("\b", info); | |
3626 | } | |
3627 | continue; | |
3628 | } | |
3629 | if (cmdchar(c)) { | |
3630 | if (m->mdmreg[REG_ECHO] & BIT_ECHO) { | |
3631 | eb[0] = c; | |
3632 | eb[1] = 0; | |
3633 | isdn_tty_at_cout(eb, info); | |
3634 | } | |
3635 | if (m->mdmcmdl < 255) { | |
3636 | c = my_toupper(c); | |
3637 | switch (m->mdmcmdl) { | |
475be4d8 JP |
3638 | case 1: |
3639 | if (c == 'T') { | |
3640 | m->mdmcmd[m->mdmcmdl] = c; | |
3641 | m->mdmcmd[++m->mdmcmdl] = 0; | |
1da177e4 | 3642 | break; |
475be4d8 JP |
3643 | } else |
3644 | m->mdmcmdl = 0; | |
3645 | /* Fall through, check for 'A' */ | |
3646 | case 0: | |
3647 | if (c == 'A') { | |
1da177e4 LT |
3648 | m->mdmcmd[m->mdmcmdl] = c; |
3649 | m->mdmcmd[++m->mdmcmdl] = 0; | |
475be4d8 JP |
3650 | } |
3651 | break; | |
3652 | default: | |
3653 | m->mdmcmd[m->mdmcmdl] = c; | |
3654 | m->mdmcmd[++m->mdmcmdl] = 0; | |
1da177e4 LT |
3655 | } |
3656 | } | |
3657 | } | |
3658 | } | |
3659 | return total; | |
3660 | } | |
3661 | ||
3662 | /* | |
3663 | * Switch all modem-channels who are online and got a valid | |
3664 | * escape-sequence 1.5 seconds ago, to command-mode. | |
3665 | * This function is called every second via timer-interrupt from within | |
3666 | * timer-dispatcher isdn_timer_function() | |
3667 | */ | |
3668 | void | |
3669 | isdn_tty_modem_escape(void) | |
3670 | { | |
3671 | int ton = 0; | |
3672 | int i; | |
3673 | int midx; | |
3674 | ||
3675 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) | |
37630f40 JS |
3676 | if (USG_MODEM(dev->usage[i]) && (midx = dev->m_idx[i]) >= 0) { |
3677 | modem_info *info = &dev->mdm.info[midx]; | |
3678 | if (info->online) { | |
3679 | ton = 1; | |
3680 | if ((info->emu.pluscount == 3) && | |
3681 | time_after(jiffies, | |
3682 | info->emu.lastplus + PLUSWAIT2)) { | |
3683 | info->emu.pluscount = 0; | |
3684 | info->online = 0; | |
3685 | isdn_tty_modem_result(RESULT_OK, info); | |
1da177e4 LT |
3686 | } |
3687 | } | |
37630f40 | 3688 | } |
1da177e4 LT |
3689 | isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS, ton); |
3690 | } | |
3691 | ||
3692 | /* | |
3693 | * Put a RING-message to all modem-channels who have the RI-bit set. | |
3694 | * This function is called every second via timer-interrupt from within | |
3695 | * timer-dispatcher isdn_timer_function() | |
3696 | */ | |
3697 | void | |
3698 | isdn_tty_modem_ring(void) | |
3699 | { | |
3700 | int ton = 0; | |
3701 | int i; | |
3702 | ||
3703 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
3704 | modem_info *info = &dev->mdm.info[i]; | |
3705 | if (info->msr & UART_MSR_RI) { | |
3706 | ton = 1; | |
3707 | isdn_tty_modem_result(RESULT_RING, info); | |
3708 | } | |
3709 | } | |
3710 | isdn_timer_ctrl(ISDN_TIMER_MODEMRING, ton); | |
3711 | } | |
3712 | ||
3713 | /* | |
3714 | * For all online tty's, try sending data to | |
3715 | * the lower levels. | |
3716 | */ | |
3717 | void | |
3718 | isdn_tty_modem_xmit(void) | |
3719 | { | |
3720 | int ton = 1; | |
3721 | int i; | |
3722 | ||
3723 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
3724 | modem_info *info = &dev->mdm.info[i]; | |
3725 | if (info->online) { | |
3726 | ton = 1; | |
3727 | isdn_tty_senddown(info); | |
3728 | isdn_tty_tint(info); | |
3729 | } | |
3730 | } | |
3731 | isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, ton); | |
3732 | } | |
3733 | ||
3734 | /* | |
3735 | * Check all channels if we have a 'no carrier' timeout. | |
3736 | * Timeout value is set by Register S7. | |
3737 | */ | |
3738 | void | |
3739 | isdn_tty_carrier_timeout(void) | |
3740 | { | |
3741 | int ton = 0; | |
3742 | int i; | |
3743 | ||
3744 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
3745 | modem_info *info = &dev->mdm.info[i]; | |
37630f40 JS |
3746 | if (!info->dialing) |
3747 | continue; | |
3748 | if (info->emu.carrierwait++ > info->emu.mdmreg[REG_WAITC]) { | |
3749 | info->dialing = 0; | |
3750 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
3751 | isdn_tty_modem_hup(info, 1); | |
3752 | } else | |
3753 | ton = 1; | |
1da177e4 LT |
3754 | } |
3755 | isdn_timer_ctrl(ISDN_TIMER_CARRIER, ton); | |
3756 | } |