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> |
1da177e4 LT |
18 | #include "isdn_common.h" |
19 | #include "isdn_tty.h" | |
20 | #ifdef CONFIG_ISDN_AUDIO | |
21 | #include "isdn_audio.h" | |
22 | #define VBUF 0x3e0 | |
23 | #define VBUFX (VBUF/16) | |
24 | #endif | |
25 | ||
26 | #define FIX_FILE_TRANSFER | |
27 | #define DUMMY_HAYES_AT | |
28 | ||
29 | /* Prototypes */ | |
30 | ||
72250d44 | 31 | static DEFINE_MUTEX(modem_info_mutex); |
1da177e4 LT |
32 | static int isdn_tty_edit_at(const char *, int, modem_info *); |
33 | static void isdn_tty_check_esc(const u_char *, u_char, int, int *, u_long *); | |
34 | static void isdn_tty_modem_reset_regs(modem_info *, int); | |
35 | static void isdn_tty_cmd_ATA(modem_info *); | |
36 | static void isdn_tty_flush_buffer(struct tty_struct *); | |
37 | static void isdn_tty_modem_result(int, modem_info *); | |
38 | #ifdef CONFIG_ISDN_AUDIO | |
39 | static int isdn_tty_countDLE(unsigned char *, int); | |
40 | #endif | |
41 | ||
42 | /* Leave this unchanged unless you know what you do! */ | |
43 | #define MODEM_PARANOIA_CHECK | |
44 | #define MODEM_DO_RESTART | |
45 | ||
46 | static int bit2si[8] = | |
47 | {1, 5, 7, 7, 7, 7, 7, 7}; | |
48 | static int si2bit[8] = | |
49 | {4, 1, 4, 4, 4, 4, 4, 4}; | |
50 | ||
1da177e4 LT |
51 | /* isdn_tty_try_read() is called from within isdn_tty_rcv_skb() |
52 | * to stuff incoming data directly into a tty's flip-buffer. This | |
53 | * is done to speed up tty-receiving if the receive-queue is empty. | |
54 | * This routine MUST be called with interrupts off. | |
55 | * Return: | |
56 | * 1 = Success | |
57 | * 0 = Failure, data has to be buffered and later processed by | |
58 | * isdn_tty_readmodem(). | |
59 | */ | |
60 | static int | |
475be4d8 | 61 | isdn_tty_try_read(modem_info *info, struct sk_buff *skb) |
1da177e4 | 62 | { |
227434f8 | 63 | struct tty_port *port = &info->port; |
1da177e4 LT |
64 | int c; |
65 | int len; | |
33f0f88f | 66 | char last; |
1da177e4 | 67 | |
37630f40 JS |
68 | if (!info->online) |
69 | return 0; | |
70 | ||
37630f40 JS |
71 | if (!(info->mcr & UART_MCR_RTS)) |
72 | return 0; | |
73 | ||
74 | len = skb->len | |
1da177e4 | 75 | #ifdef CONFIG_ISDN_AUDIO |
37630f40 | 76 | + ISDN_AUDIO_SKB_DLECOUNT(skb) |
1da177e4 | 77 | #endif |
37630f40 JS |
78 | ; |
79 | ||
227434f8 | 80 | c = tty_buffer_request_room(port, len); |
37630f40 JS |
81 | if (c < len) |
82 | return 0; | |
33f0f88f | 83 | |
1da177e4 | 84 | #ifdef CONFIG_ISDN_AUDIO |
37630f40 JS |
85 | if (ISDN_AUDIO_SKB_DLECOUNT(skb)) { |
86 | int l = skb->len; | |
87 | unsigned char *dp = skb->data; | |
88 | while (--l) { | |
89 | if (*dp == DLE) | |
92a19f9c JS |
90 | tty_insert_flip_char(port, DLE, 0); |
91 | tty_insert_flip_char(port, *dp++, 0); | |
37630f40 JS |
92 | } |
93 | if (*dp == DLE) | |
92a19f9c | 94 | tty_insert_flip_char(port, DLE, 0); |
37630f40 JS |
95 | last = *dp; |
96 | } else { | |
1da177e4 | 97 | #endif |
37630f40 | 98 | if (len > 1) |
05c7cd39 | 99 | tty_insert_flip_string(port, skb->data, len - 1); |
37630f40 JS |
100 | last = skb->data[len - 1]; |
101 | #ifdef CONFIG_ISDN_AUDIO | |
1da177e4 | 102 | } |
37630f40 JS |
103 | #endif |
104 | if (info->emu.mdmreg[REG_CPPP] & BIT_CPPP) | |
92a19f9c | 105 | tty_insert_flip_char(port, last, 0xFF); |
37630f40 | 106 | else |
92a19f9c | 107 | tty_insert_flip_char(port, last, TTY_NORMAL); |
2e124b4a | 108 | tty_flip_buffer_push(port); |
37630f40 JS |
109 | kfree_skb(skb); |
110 | ||
111 | return 1; | |
1da177e4 LT |
112 | } |
113 | ||
114 | /* isdn_tty_readmodem() is called periodically from within timer-interrupt. | |
115 | * It tries getting received data from the receive queue an stuff it into | |
116 | * the tty's flip-buffer. | |
117 | */ | |
118 | void | |
119 | isdn_tty_readmodem(void) | |
120 | { | |
121 | int resched = 0; | |
122 | int midx; | |
123 | int i; | |
1da177e4 | 124 | int r; |
1da177e4 LT |
125 | modem_info *info; |
126 | ||
127 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
37630f40 JS |
128 | midx = dev->m_idx[i]; |
129 | if (midx < 0) | |
130 | continue; | |
131 | ||
132 | info = &dev->mdm.info[midx]; | |
133 | if (!info->online) | |
134 | continue; | |
135 | ||
136 | r = 0; | |
1da177e4 | 137 | #ifdef CONFIG_ISDN_AUDIO |
37630f40 JS |
138 | isdn_audio_eval_dtmf(info); |
139 | if ((info->vonline & 1) && (info->emu.vpar[1])) | |
140 | isdn_audio_eval_silence(info); | |
141 | #endif | |
2e124b4a JS |
142 | if (info->mcr & UART_MCR_RTS) { |
143 | /* CISCO AsyncPPP Hack */ | |
144 | if (!(info->emu.mdmreg[REG_CPPP] & BIT_CPPP)) | |
145 | r = isdn_readbchan_tty(info->isdn_driver, | |
146 | info->isdn_channel, | |
147 | &info->port, 0); | |
148 | else | |
149 | r = isdn_readbchan_tty(info->isdn_driver, | |
150 | info->isdn_channel, | |
151 | &info->port, 1); | |
152 | if (r) | |
153 | tty_flip_buffer_push(&info->port); | |
37630f40 JS |
154 | } else |
155 | r = 1; | |
2e124b4a | 156 | |
37630f40 JS |
157 | if (r) { |
158 | info->rcvsched = 0; | |
159 | resched = 1; | |
160 | } else | |
161 | info->rcvsched = 1; | |
1da177e4 LT |
162 | } |
163 | if (!resched) | |
164 | isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 0); | |
165 | } | |
166 | ||
167 | int | |
168 | isdn_tty_rcv_skb(int i, int di, int channel, struct sk_buff *skb) | |
169 | { | |
170 | ulong flags; | |
171 | int midx; | |
172 | #ifdef CONFIG_ISDN_AUDIO | |
173 | int ifmt; | |
174 | #endif | |
175 | modem_info *info; | |
176 | ||
177 | if ((midx = dev->m_idx[i]) < 0) { | |
178 | /* if midx is invalid, packet is not for tty */ | |
179 | return 0; | |
180 | } | |
181 | info = &dev->mdm.info[midx]; | |
182 | #ifdef CONFIG_ISDN_AUDIO | |
183 | ifmt = 1; | |
475be4d8 | 184 | |
1da177e4 LT |
185 | if ((info->vonline) && (!info->emu.vpar[4])) |
186 | isdn_audio_calc_dtmf(info, skb->data, skb->len, ifmt); | |
187 | if ((info->vonline & 1) && (info->emu.vpar[1])) | |
188 | isdn_audio_calc_silence(info, skb->data, skb->len, ifmt); | |
189 | #endif | |
190 | if ((info->online < 2) | |
191 | #ifdef CONFIG_ISDN_AUDIO | |
192 | && (!(info->vonline & 1)) | |
193 | #endif | |
194 | ) { | |
195 | /* If Modem not listening, drop data */ | |
196 | kfree_skb(skb); | |
197 | return 1; | |
198 | } | |
199 | if (info->emu.mdmreg[REG_T70] & BIT_T70) { | |
200 | if (info->emu.mdmreg[REG_T70] & BIT_T70_EXT) { | |
201 | /* T.70 decoding: throw away the T.70 header (2 or 4 bytes) */ | |
202 | if (skb->data[0] == 3) /* pure data packet -> 4 byte headers */ | |
203 | skb_pull(skb, 4); | |
204 | else | |
205 | if (skb->data[0] == 1) /* keepalive packet -> 2 byte hdr */ | |
206 | skb_pull(skb, 2); | |
207 | } else | |
208 | /* T.70 decoding: Simply throw away the T.70 header (4 bytes) */ | |
209 | if ((skb->data[0] == 1) && ((skb->data[1] == 0) || (skb->data[1] == 1))) | |
210 | skb_pull(skb, 4); | |
211 | } | |
212 | #ifdef CONFIG_ISDN_AUDIO | |
213 | ISDN_AUDIO_SKB_DLECOUNT(skb) = 0; | |
214 | ISDN_AUDIO_SKB_LOCK(skb) = 0; | |
215 | if (info->vonline & 1) { | |
216 | /* voice conversion/compression */ | |
217 | switch (info->emu.vpar[3]) { | |
475be4d8 JP |
218 | case 2: |
219 | case 3: | |
220 | case 4: | |
221 | /* adpcm | |
222 | * Since compressed data takes less | |
223 | * space, we can overwrite the buffer. | |
224 | */ | |
225 | skb_trim(skb, isdn_audio_xlaw2adpcm(info->adpcmr, | |
226 | ifmt, | |
227 | skb->data, | |
228 | skb->data, | |
229 | skb->len)); | |
230 | break; | |
231 | case 5: | |
232 | /* a-law */ | |
233 | if (!ifmt) | |
234 | isdn_audio_ulaw2alaw(skb->data, skb->len); | |
235 | break; | |
236 | case 6: | |
237 | /* u-law */ | |
238 | if (ifmt) | |
239 | isdn_audio_alaw2ulaw(skb->data, skb->len); | |
240 | break; | |
1da177e4 LT |
241 | } |
242 | ISDN_AUDIO_SKB_DLECOUNT(skb) = | |
243 | isdn_tty_countDLE(skb->data, skb->len); | |
244 | } | |
245 | #ifdef CONFIG_ISDN_TTY_FAX | |
246 | else { | |
247 | if (info->faxonline & 2) { | |
248 | isdn_tty_fax_bitorder(info, skb); | |
249 | ISDN_AUDIO_SKB_DLECOUNT(skb) = | |
250 | isdn_tty_countDLE(skb->data, skb->len); | |
251 | } | |
252 | } | |
253 | #endif | |
254 | #endif | |
33f0f88f | 255 | /* Try to deliver directly via tty-buf if queue is empty */ |
1da177e4 LT |
256 | spin_lock_irqsave(&info->readlock, flags); |
257 | if (skb_queue_empty(&dev->drv[di]->rpqueue[channel])) | |
258 | if (isdn_tty_try_read(info, skb)) { | |
259 | spin_unlock_irqrestore(&info->readlock, flags); | |
260 | return 1; | |
261 | } | |
262 | /* Direct deliver failed or queue wasn't empty. | |
263 | * Queue up for later dequeueing via timer-irq. | |
264 | */ | |
265 | __skb_queue_tail(&dev->drv[di]->rpqueue[channel], skb); | |
266 | dev->drv[di]->rcvcount[channel] += | |
267 | (skb->len | |
268 | #ifdef CONFIG_ISDN_AUDIO | |
269 | + ISDN_AUDIO_SKB_DLECOUNT(skb) | |
270 | #endif | |
271 | ); | |
272 | spin_unlock_irqrestore(&info->readlock, flags); | |
273 | /* Schedule dequeuing */ | |
274 | if ((dev->modempoll) && (info->rcvsched)) | |
275 | isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1); | |
276 | return 1; | |
277 | } | |
278 | ||
3e206b0a | 279 | static void |
475be4d8 | 280 | isdn_tty_cleanup_xmit(modem_info *info) |
1da177e4 LT |
281 | { |
282 | skb_queue_purge(&info->xmit_queue); | |
283 | #ifdef CONFIG_ISDN_AUDIO | |
284 | skb_queue_purge(&info->dtmf_queue); | |
285 | #endif | |
286 | } | |
287 | ||
288 | static void | |
475be4d8 | 289 | isdn_tty_tint(modem_info *info) |
1da177e4 LT |
290 | { |
291 | struct sk_buff *skb = skb_dequeue(&info->xmit_queue); | |
292 | int len, slen; | |
293 | ||
294 | if (!skb) | |
295 | return; | |
296 | len = skb->len; | |
297 | if ((slen = isdn_writebuf_skb_stub(info->isdn_driver, | |
298 | info->isdn_channel, 1, skb)) == len) { | |
ba43294d | 299 | struct tty_struct *tty = info->port.tty; |
1da177e4 LT |
300 | info->send_outstanding++; |
301 | info->msr &= ~UART_MSR_CTS; | |
302 | info->lsr &= ~UART_LSR_TEMT; | |
303 | tty_wakeup(tty); | |
304 | return; | |
305 | } | |
306 | if (slen < 0) { | |
307 | /* Error: no channel, already shutdown, or wrong parameter */ | |
308 | dev_kfree_skb(skb); | |
309 | return; | |
310 | } | |
311 | skb_queue_head(&info->xmit_queue, skb); | |
312 | } | |
313 | ||
314 | #ifdef CONFIG_ISDN_AUDIO | |
315 | static int | |
316 | isdn_tty_countDLE(unsigned char *buf, int len) | |
317 | { | |
318 | int count = 0; | |
319 | ||
320 | while (len--) | |
321 | if (*buf++ == DLE) | |
322 | count++; | |
323 | return count; | |
324 | } | |
325 | ||
326 | /* This routine is called from within isdn_tty_write() to perform | |
327 | * DLE-decoding when sending audio-data. | |
328 | */ | |
329 | static int | |
475be4d8 | 330 | isdn_tty_handleDLEdown(modem_info *info, atemu *m, int len) |
1da177e4 | 331 | { |
82e46b31 | 332 | unsigned char *p = &info->port.xmit_buf[info->xmit_count]; |
1da177e4 LT |
333 | int count = 0; |
334 | ||
335 | while (len > 0) { | |
336 | if (m->lastDLE) { | |
337 | m->lastDLE = 0; | |
338 | switch (*p) { | |
475be4d8 JP |
339 | case DLE: |
340 | /* Escape code */ | |
341 | if (len > 1) | |
342 | memmove(p, p + 1, len - 1); | |
343 | p--; | |
344 | count++; | |
345 | break; | |
346 | case ETX: | |
347 | /* End of data */ | |
348 | info->vonline |= 4; | |
349 | return count; | |
350 | case DC4: | |
351 | /* Abort RX */ | |
352 | info->vonline &= ~1; | |
1da177e4 | 353 | #ifdef ISDN_DEBUG_MODEM_VOICE |
475be4d8 JP |
354 | printk(KERN_DEBUG |
355 | "DLEdown: got DLE-DC4, send DLE-ETX on ttyI%d\n", | |
356 | info->line); | |
1da177e4 | 357 | #endif |
475be4d8 JP |
358 | isdn_tty_at_cout("\020\003", info); |
359 | if (!info->vonline) { | |
1da177e4 | 360 | #ifdef ISDN_DEBUG_MODEM_VOICE |
475be4d8 JP |
361 | printk(KERN_DEBUG |
362 | "DLEdown: send VCON on ttyI%d\n", | |
363 | info->line); | |
1da177e4 | 364 | #endif |
475be4d8 JP |
365 | isdn_tty_at_cout("\r\nVCON\r\n", info); |
366 | } | |
367 | /* Fall through */ | |
368 | case 'q': | |
369 | case 's': | |
370 | /* Silence */ | |
371 | if (len > 1) | |
372 | memmove(p, p + 1, len - 1); | |
373 | p--; | |
374 | break; | |
1da177e4 LT |
375 | } |
376 | } else { | |
377 | if (*p == DLE) | |
378 | m->lastDLE = 1; | |
379 | else | |
380 | count++; | |
381 | } | |
382 | p++; | |
383 | len--; | |
384 | } | |
385 | if (len < 0) { | |
386 | printk(KERN_WARNING "isdn_tty: len<0 in DLEdown\n"); | |
387 | return 0; | |
388 | } | |
389 | return count; | |
390 | } | |
391 | ||
392 | /* This routine is called from within isdn_tty_write() when receiving | |
393 | * audio-data. It interrupts receiving, if an character other than | |
394 | * ^S or ^Q is sent. | |
395 | */ | |
396 | static int | |
397 | isdn_tty_end_vrx(const char *buf, int c) | |
398 | { | |
399 | char ch; | |
400 | ||
401 | while (c--) { | |
402 | ch = *buf; | |
403 | if ((ch != 0x11) && (ch != 0x13)) | |
404 | return 1; | |
405 | buf++; | |
406 | } | |
407 | return 0; | |
408 | } | |
409 | ||
410 | static int voice_cf[7] = | |
411 | {0, 0, 4, 3, 2, 0, 0}; | |
412 | ||
413 | #endif /* CONFIG_ISDN_AUDIO */ | |
414 | ||
415 | /* isdn_tty_senddown() is called either directly from within isdn_tty_write() | |
416 | * or via timer-interrupt from within isdn_tty_modem_xmit(). It pulls | |
417 | * outgoing data from the tty's xmit-buffer, handles voice-decompression or | |
418 | * T.70 if necessary, and finally queues it up for sending via isdn_tty_tint. | |
419 | */ | |
420 | static void | |
475be4d8 | 421 | isdn_tty_senddown(modem_info *info) |
1da177e4 LT |
422 | { |
423 | int buflen; | |
424 | int skb_res; | |
425 | #ifdef CONFIG_ISDN_AUDIO | |
426 | int audio_len; | |
427 | #endif | |
428 | struct sk_buff *skb; | |
429 | ||
430 | #ifdef CONFIG_ISDN_AUDIO | |
431 | if (info->vonline & 4) { | |
432 | info->vonline &= ~6; | |
433 | if (!info->vonline) { | |
434 | #ifdef ISDN_DEBUG_MODEM_VOICE | |
435 | printk(KERN_DEBUG | |
436 | "senddown: send VCON on ttyI%d\n", | |
437 | info->line); | |
438 | #endif | |
439 | isdn_tty_at_cout("\r\nVCON\r\n", info); | |
440 | } | |
441 | } | |
442 | #endif | |
443 | if (!(buflen = info->xmit_count)) | |
444 | return; | |
475be4d8 | 445 | if ((info->emu.mdmreg[REG_CTS] & BIT_CTS) != 0) |
1da177e4 | 446 | info->msr &= ~UART_MSR_CTS; |
475be4d8 | 447 | info->lsr &= ~UART_LSR_TEMT; |
1da177e4 LT |
448 | /* info->xmit_count is modified here and in isdn_tty_write(). |
449 | * So we return here if isdn_tty_write() is in the | |
450 | * critical section. | |
451 | */ | |
452 | atomic_inc(&info->xmit_lock); | |
453 | if (!(atomic_dec_and_test(&info->xmit_lock))) | |
454 | return; | |
455 | if (info->isdn_driver < 0) { | |
456 | info->xmit_count = 0; | |
457 | return; | |
458 | } | |
459 | skb_res = dev->drv[info->isdn_driver]->interface->hl_hdrlen + 4; | |
460 | #ifdef CONFIG_ISDN_AUDIO | |
461 | if (info->vonline & 2) | |
462 | audio_len = buflen * voice_cf[info->emu.vpar[3]]; | |
463 | else | |
464 | audio_len = 0; | |
465 | skb = dev_alloc_skb(skb_res + buflen + audio_len); | |
466 | #else | |
467 | skb = dev_alloc_skb(skb_res + buflen); | |
468 | #endif | |
469 | if (!skb) { | |
470 | printk(KERN_WARNING | |
471 | "isdn_tty: Out of memory in ttyI%d senddown\n", | |
472 | info->line); | |
473 | return; | |
474 | } | |
475 | skb_reserve(skb, skb_res); | |
82e46b31 | 476 | memcpy(skb_put(skb, buflen), info->port.xmit_buf, buflen); |
1da177e4 LT |
477 | info->xmit_count = 0; |
478 | #ifdef CONFIG_ISDN_AUDIO | |
479 | if (info->vonline & 2) { | |
480 | /* For now, ifmt is fixed to 1 (alaw), since this | |
481 | * is used with ISDN everywhere in the world, except | |
482 | * US, Canada and Japan. | |
483 | * Later, when US-ISDN protocols are implemented, | |
484 | * this setting will depend on the D-channel protocol. | |
485 | */ | |
486 | int ifmt = 1; | |
487 | ||
488 | /* voice conversion/decompression */ | |
489 | switch (info->emu.vpar[3]) { | |
475be4d8 JP |
490 | case 2: |
491 | case 3: | |
492 | case 4: | |
493 | /* adpcm, compatible to ZyXel 1496 modem | |
494 | * with ROM revision 6.01 | |
495 | */ | |
496 | audio_len = isdn_audio_adpcm2xlaw(info->adpcms, | |
497 | ifmt, | |
498 | skb->data, | |
499 | skb_put(skb, audio_len), | |
500 | buflen); | |
501 | skb_pull(skb, buflen); | |
502 | skb_trim(skb, audio_len); | |
503 | break; | |
504 | case 5: | |
505 | /* a-law */ | |
506 | if (!ifmt) | |
507 | isdn_audio_alaw2ulaw(skb->data, | |
508 | buflen); | |
509 | break; | |
510 | case 6: | |
511 | /* u-law */ | |
512 | if (ifmt) | |
513 | isdn_audio_ulaw2alaw(skb->data, | |
514 | buflen); | |
515 | break; | |
1da177e4 LT |
516 | } |
517 | } | |
518 | #endif /* CONFIG_ISDN_AUDIO */ | |
519 | if (info->emu.mdmreg[REG_T70] & BIT_T70) { | |
520 | /* Add T.70 simplified header */ | |
521 | if (info->emu.mdmreg[REG_T70] & BIT_T70_EXT) | |
522 | memcpy(skb_push(skb, 2), "\1\0", 2); | |
523 | else | |
524 | memcpy(skb_push(skb, 4), "\1\0\1\0", 4); | |
525 | } | |
526 | skb_queue_tail(&info->xmit_queue, skb); | |
527 | } | |
528 | ||
529 | /************************************************************ | |
530 | * | |
531 | * Modem-functions | |
532 | * | |
533 | * mostly "stolen" from original Linux-serial.c and friends. | |
534 | * | |
535 | ************************************************************/ | |
536 | ||
537 | /* The next routine is called once from within timer-interrupt | |
538 | * triggered within isdn_tty_modem_ncarrier(). It calls | |
539 | * isdn_tty_modem_result() to stuff a "NO CARRIER" Message | |
33f0f88f | 540 | * into the tty's buffer. |
1da177e4 LT |
541 | */ |
542 | static void | |
543 | isdn_tty_modem_do_ncarrier(unsigned long data) | |
544 | { | |
545 | modem_info *info = (modem_info *) data; | |
546 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
547 | } | |
548 | ||
549 | /* Next routine is called, whenever the DTR-signal is raised. | |
550 | * It checks the ncarrier-flag, and triggers the above routine | |
551 | * when necessary. The ncarrier-flag is set, whenever DTR goes | |
552 | * low. | |
553 | */ | |
554 | static void | |
475be4d8 | 555 | isdn_tty_modem_ncarrier(modem_info *info) |
1da177e4 LT |
556 | { |
557 | if (info->ncarrier) { | |
558 | info->nc_timer.expires = jiffies + HZ; | |
559 | add_timer(&info->nc_timer); | |
560 | } | |
561 | } | |
562 | ||
563 | /* | |
564 | * return the usage calculated by si and layer 2 protocol | |
565 | */ | |
3e206b0a | 566 | static int |
1da177e4 LT |
567 | isdn_calc_usage(int si, int l2) |
568 | { | |
569 | int usg = ISDN_USAGE_MODEM; | |
570 | ||
571 | #ifdef CONFIG_ISDN_AUDIO | |
572 | if (si == 1) { | |
475be4d8 JP |
573 | switch (l2) { |
574 | case ISDN_PROTO_L2_MODEM: | |
575 | usg = ISDN_USAGE_MODEM; | |
576 | break; | |
1da177e4 | 577 | #ifdef CONFIG_ISDN_TTY_FAX |
475be4d8 JP |
578 | case ISDN_PROTO_L2_FAX: |
579 | usg = ISDN_USAGE_FAX; | |
580 | break; | |
1da177e4 | 581 | #endif |
475be4d8 JP |
582 | case ISDN_PROTO_L2_TRANS: |
583 | default: | |
584 | usg = ISDN_USAGE_VOICE; | |
585 | break; | |
1da177e4 LT |
586 | } |
587 | } | |
588 | #endif | |
475be4d8 | 589 | return (usg); |
1da177e4 LT |
590 | } |
591 | ||
592 | /* isdn_tty_dial() performs dialing of a tty an the necessary | |
593 | * setup of the lower levels before that. | |
594 | */ | |
595 | static void | |
475be4d8 | 596 | isdn_tty_dial(char *n, modem_info *info, atemu *m) |
1da177e4 LT |
597 | { |
598 | int usg = ISDN_USAGE_MODEM; | |
599 | int si = 7; | |
600 | int l2 = m->mdmreg[REG_L2PROT]; | |
601 | u_long flags; | |
602 | isdn_ctrl cmd; | |
603 | int i; | |
604 | int j; | |
605 | ||
606 | for (j = 7; j >= 0; j--) | |
607 | if (m->mdmreg[REG_SI1] & (1 << j)) { | |
608 | si = bit2si[j]; | |
609 | break; | |
610 | } | |
611 | usg = isdn_calc_usage(si, l2); | |
612 | #ifdef CONFIG_ISDN_AUDIO | |
475be4d8 JP |
613 | if ((si == 1) && |
614 | (l2 != ISDN_PROTO_L2_MODEM) | |
1da177e4 | 615 | #ifdef CONFIG_ISDN_TTY_FAX |
475be4d8 | 616 | && (l2 != ISDN_PROTO_L2_FAX) |
1da177e4 LT |
617 | #endif |
618 | ) { | |
619 | l2 = ISDN_PROTO_L2_TRANS; | |
620 | usg = ISDN_USAGE_VOICE; | |
621 | } | |
622 | #endif | |
623 | m->mdmreg[REG_SI1I] = si2bit[si]; | |
624 | spin_lock_irqsave(&dev->lock, flags); | |
625 | i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn); | |
626 | if (i < 0) { | |
627 | spin_unlock_irqrestore(&dev->lock, flags); | |
628 | isdn_tty_modem_result(RESULT_NO_DIALTONE, info); | |
629 | } else { | |
630 | info->isdn_driver = dev->drvmap[i]; | |
631 | info->isdn_channel = dev->chanmap[i]; | |
632 | info->drv_index = i; | |
633 | dev->m_idx[i] = info->line; | |
634 | dev->usage[i] |= ISDN_USAGE_OUTGOING; | |
635 | info->last_dir = 1; | |
636 | strcpy(info->last_num, n); | |
637 | isdn_info_update(); | |
638 | spin_unlock_irqrestore(&dev->lock, flags); | |
639 | cmd.driver = info->isdn_driver; | |
640 | cmd.arg = info->isdn_channel; | |
641 | cmd.command = ISDN_CMD_CLREAZ; | |
642 | isdn_command(&cmd); | |
643 | strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver)); | |
644 | cmd.driver = info->isdn_driver; | |
645 | cmd.command = ISDN_CMD_SETEAZ; | |
646 | isdn_command(&cmd); | |
647 | cmd.driver = info->isdn_driver; | |
648 | cmd.command = ISDN_CMD_SETL2; | |
649 | info->last_l2 = l2; | |
650 | cmd.arg = info->isdn_channel + (l2 << 8); | |
651 | isdn_command(&cmd); | |
652 | cmd.driver = info->isdn_driver; | |
653 | cmd.command = ISDN_CMD_SETL3; | |
654 | cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); | |
655 | #ifdef CONFIG_ISDN_TTY_FAX | |
656 | if (l2 == ISDN_PROTO_L2_FAX) { | |
657 | cmd.parm.fax = info->fax; | |
658 | info->fax->direction = ISDN_TTY_FAX_CONN_OUT; | |
659 | } | |
660 | #endif | |
661 | isdn_command(&cmd); | |
662 | cmd.driver = info->isdn_driver; | |
663 | cmd.arg = info->isdn_channel; | |
664 | sprintf(cmd.parm.setup.phone, "%s", n); | |
665 | sprintf(cmd.parm.setup.eazmsn, "%s", | |
666 | isdn_map_eaz2msn(m->msn, info->isdn_driver)); | |
667 | cmd.parm.setup.si1 = si; | |
668 | cmd.parm.setup.si2 = m->mdmreg[REG_SI2]; | |
669 | cmd.command = ISDN_CMD_DIAL; | |
670 | info->dialing = 1; | |
671 | info->emu.carrierwait = 0; | |
672 | strcpy(dev->num[i], n); | |
673 | isdn_info_update(); | |
674 | isdn_command(&cmd); | |
675 | isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1); | |
676 | } | |
677 | } | |
678 | ||
679 | /* isdn_tty_hangup() disassociates a tty from the real | |
680 | * ISDN-line (hangup). The usage-status is cleared | |
681 | * and some cleanup is done also. | |
682 | */ | |
683 | void | |
475be4d8 | 684 | isdn_tty_modem_hup(modem_info *info, int local) |
1da177e4 LT |
685 | { |
686 | isdn_ctrl cmd; | |
687 | int di, ch; | |
688 | ||
689 | if (!info) | |
690 | return; | |
691 | ||
692 | di = info->isdn_driver; | |
693 | ch = info->isdn_channel; | |
694 | if (di < 0 || ch < 0) | |
695 | return; | |
696 | ||
697 | info->isdn_driver = -1; | |
698 | info->isdn_channel = -1; | |
699 | ||
700 | #ifdef ISDN_DEBUG_MODEM_HUP | |
701 | printk(KERN_DEBUG "Mhup ttyI%d\n", info->line); | |
702 | #endif | |
703 | info->rcvsched = 0; | |
ba43294d | 704 | isdn_tty_flush_buffer(info->port.tty); |
1da177e4 LT |
705 | if (info->online) { |
706 | info->last_lhup = local; | |
707 | info->online = 0; | |
708 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
709 | } | |
710 | #ifdef CONFIG_ISDN_AUDIO | |
711 | info->vonline = 0; | |
712 | #ifdef CONFIG_ISDN_TTY_FAX | |
713 | info->faxonline = 0; | |
714 | info->fax->phase = ISDN_FAX_PHASE_IDLE; | |
715 | #endif | |
716 | info->emu.vpar[4] = 0; | |
717 | info->emu.vpar[5] = 8; | |
3c7208f2 JJ |
718 | kfree(info->dtmf_state); |
719 | info->dtmf_state = NULL; | |
720 | kfree(info->silence_state); | |
721 | info->silence_state = NULL; | |
722 | kfree(info->adpcms); | |
723 | info->adpcms = NULL; | |
724 | kfree(info->adpcmr); | |
725 | info->adpcmr = NULL; | |
1da177e4 LT |
726 | #endif |
727 | if ((info->msr & UART_MSR_RI) && | |
475be4d8 | 728 | (info->emu.mdmreg[REG_RUNG] & BIT_RUNG)) |
1da177e4 LT |
729 | isdn_tty_modem_result(RESULT_RUNG, info); |
730 | info->msr &= ~(UART_MSR_DCD | UART_MSR_RI); | |
731 | info->lsr |= UART_LSR_TEMT; | |
732 | ||
733 | if (local) { | |
734 | cmd.driver = di; | |
735 | cmd.command = ISDN_CMD_HANGUP; | |
736 | cmd.arg = ch; | |
737 | isdn_command(&cmd); | |
738 | } | |
739 | ||
740 | isdn_all_eaz(di, ch); | |
741 | info->emu.mdmreg[REG_RINGCNT] = 0; | |
742 | isdn_free_channel(di, ch, 0); | |
743 | ||
744 | if (info->drv_index >= 0) { | |
745 | dev->m_idx[info->drv_index] = -1; | |
746 | info->drv_index = -1; | |
747 | } | |
748 | } | |
749 | ||
750 | /* | |
475be4d8 | 751 | * Begin of a CAPI like interface, currently used only for |
1da177e4 LT |
752 | * supplementary service (CAPI 2.0 part III) |
753 | */ | |
754 | #include <linux/isdn/capicmd.h> | |
07a97fe8 | 755 | #include <linux/module.h> |
1da177e4 LT |
756 | |
757 | int | |
758 | isdn_tty_capi_facility(capi_msg *cm) { | |
475be4d8 | 759 | return (-1); /* dummy */ |
1da177e4 LT |
760 | } |
761 | ||
762 | /* isdn_tty_suspend() tries to suspend the current tty connection | |
763 | */ | |
764 | static void | |
475be4d8 | 765 | isdn_tty_suspend(char *id, modem_info *info, atemu *m) |
1da177e4 LT |
766 | { |
767 | isdn_ctrl cmd; | |
475be4d8 | 768 | |
1da177e4 LT |
769 | int l; |
770 | ||
771 | if (!info) | |
772 | return; | |
773 | ||
774 | #ifdef ISDN_DEBUG_MODEM_SERVICES | |
775 | printk(KERN_DEBUG "Msusp ttyI%d\n", info->line); | |
776 | #endif | |
777 | l = strlen(id); | |
778 | if ((info->isdn_driver >= 0)) { | |
475be4d8 | 779 | cmd.parm.cmsg.Length = l + 18; |
1da177e4 LT |
780 | cmd.parm.cmsg.Command = CAPI_FACILITY; |
781 | cmd.parm.cmsg.Subcommand = CAPI_REQ; | |
782 | cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1; | |
783 | cmd.parm.cmsg.para[0] = 3; /* 16 bit 0x0003 suplementary service */ | |
784 | cmd.parm.cmsg.para[1] = 0; | |
785 | cmd.parm.cmsg.para[2] = l + 3; | |
786 | cmd.parm.cmsg.para[3] = 4; /* 16 bit 0x0004 Suspend */ | |
787 | cmd.parm.cmsg.para[4] = 0; | |
788 | cmd.parm.cmsg.para[5] = l; | |
789 | strncpy(&cmd.parm.cmsg.para[6], id, l); | |
790 | cmd.command = CAPI_PUT_MESSAGE; | |
791 | cmd.driver = info->isdn_driver; | |
792 | cmd.arg = info->isdn_channel; | |
793 | isdn_command(&cmd); | |
794 | } | |
795 | } | |
796 | ||
797 | /* isdn_tty_resume() tries to resume a suspended call | |
25985edc | 798 | * setup of the lower levels before that. unfortunately here is no |
1da177e4 LT |
799 | * checking for compatibility of used protocols implemented by Q931 |
800 | * It does the same things like isdn_tty_dial, the last command | |
801 | * is different, may be we can merge it. | |
802 | */ | |
803 | ||
804 | static void | |
475be4d8 | 805 | isdn_tty_resume(char *id, modem_info *info, atemu *m) |
1da177e4 LT |
806 | { |
807 | int usg = ISDN_USAGE_MODEM; | |
808 | int si = 7; | |
809 | int l2 = m->mdmreg[REG_L2PROT]; | |
810 | isdn_ctrl cmd; | |
811 | ulong flags; | |
812 | int i; | |
813 | int j; | |
814 | int l; | |
815 | ||
816 | l = strlen(id); | |
817 | for (j = 7; j >= 0; j--) | |
818 | if (m->mdmreg[REG_SI1] & (1 << j)) { | |
819 | si = bit2si[j]; | |
820 | break; | |
821 | } | |
822 | usg = isdn_calc_usage(si, l2); | |
823 | #ifdef CONFIG_ISDN_AUDIO | |
475be4d8 JP |
824 | if ((si == 1) && |
825 | (l2 != ISDN_PROTO_L2_MODEM) | |
1da177e4 | 826 | #ifdef CONFIG_ISDN_TTY_FAX |
475be4d8 | 827 | && (l2 != ISDN_PROTO_L2_FAX) |
1da177e4 LT |
828 | #endif |
829 | ) { | |
830 | l2 = ISDN_PROTO_L2_TRANS; | |
831 | usg = ISDN_USAGE_VOICE; | |
832 | } | |
833 | #endif | |
834 | m->mdmreg[REG_SI1I] = si2bit[si]; | |
835 | spin_lock_irqsave(&dev->lock, flags); | |
836 | i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn); | |
837 | if (i < 0) { | |
838 | spin_unlock_irqrestore(&dev->lock, flags); | |
839 | isdn_tty_modem_result(RESULT_NO_DIALTONE, info); | |
840 | } else { | |
841 | info->isdn_driver = dev->drvmap[i]; | |
842 | info->isdn_channel = dev->chanmap[i]; | |
843 | info->drv_index = i; | |
844 | dev->m_idx[i] = info->line; | |
845 | dev->usage[i] |= ISDN_USAGE_OUTGOING; | |
846 | info->last_dir = 1; | |
847 | // strcpy(info->last_num, n); | |
848 | isdn_info_update(); | |
849 | spin_unlock_irqrestore(&dev->lock, flags); | |
850 | cmd.driver = info->isdn_driver; | |
851 | cmd.arg = info->isdn_channel; | |
852 | cmd.command = ISDN_CMD_CLREAZ; | |
853 | isdn_command(&cmd); | |
854 | strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver)); | |
855 | cmd.driver = info->isdn_driver; | |
856 | cmd.command = ISDN_CMD_SETEAZ; | |
857 | isdn_command(&cmd); | |
858 | cmd.driver = info->isdn_driver; | |
859 | cmd.command = ISDN_CMD_SETL2; | |
860 | info->last_l2 = l2; | |
861 | cmd.arg = info->isdn_channel + (l2 << 8); | |
862 | isdn_command(&cmd); | |
863 | cmd.driver = info->isdn_driver; | |
864 | cmd.command = ISDN_CMD_SETL3; | |
865 | cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); | |
866 | isdn_command(&cmd); | |
867 | cmd.driver = info->isdn_driver; | |
868 | cmd.arg = info->isdn_channel; | |
475be4d8 | 869 | cmd.parm.cmsg.Length = l + 18; |
1da177e4 LT |
870 | cmd.parm.cmsg.Command = CAPI_FACILITY; |
871 | cmd.parm.cmsg.Subcommand = CAPI_REQ; | |
872 | cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1; | |
873 | cmd.parm.cmsg.para[0] = 3; /* 16 bit 0x0003 suplementary service */ | |
874 | cmd.parm.cmsg.para[1] = 0; | |
475be4d8 | 875 | cmd.parm.cmsg.para[2] = l + 3; |
1da177e4 LT |
876 | cmd.parm.cmsg.para[3] = 5; /* 16 bit 0x0005 Resume */ |
877 | cmd.parm.cmsg.para[4] = 0; | |
878 | cmd.parm.cmsg.para[5] = l; | |
879 | strncpy(&cmd.parm.cmsg.para[6], id, l); | |
475be4d8 | 880 | cmd.command = CAPI_PUT_MESSAGE; |
1da177e4 LT |
881 | info->dialing = 1; |
882 | // strcpy(dev->num[i], n); | |
883 | isdn_info_update(); | |
884 | isdn_command(&cmd); | |
885 | isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1); | |
886 | } | |
887 | } | |
888 | ||
889 | /* isdn_tty_send_msg() sends a message to a HL driver | |
890 | * This is used for hybrid modem cards to send AT commands to it | |
891 | */ | |
892 | ||
893 | static void | |
475be4d8 | 894 | isdn_tty_send_msg(modem_info *info, atemu *m, char *msg) |
1da177e4 LT |
895 | { |
896 | int usg = ISDN_USAGE_MODEM; | |
897 | int si = 7; | |
898 | int l2 = m->mdmreg[REG_L2PROT]; | |
899 | isdn_ctrl cmd; | |
900 | ulong flags; | |
901 | int i; | |
902 | int j; | |
903 | int l; | |
904 | ||
f3947936 CG |
905 | l = min(strlen(msg), sizeof(cmd.parm) - sizeof(cmd.parm.cmsg) |
906 | + sizeof(cmd.parm.cmsg.para) - 2); | |
907 | ||
1da177e4 LT |
908 | if (!l) { |
909 | isdn_tty_modem_result(RESULT_ERROR, info); | |
910 | return; | |
911 | } | |
912 | for (j = 7; j >= 0; j--) | |
913 | if (m->mdmreg[REG_SI1] & (1 << j)) { | |
914 | si = bit2si[j]; | |
915 | break; | |
916 | } | |
917 | usg = isdn_calc_usage(si, l2); | |
918 | #ifdef CONFIG_ISDN_AUDIO | |
475be4d8 JP |
919 | if ((si == 1) && |
920 | (l2 != ISDN_PROTO_L2_MODEM) | |
1da177e4 | 921 | #ifdef CONFIG_ISDN_TTY_FAX |
475be4d8 | 922 | && (l2 != ISDN_PROTO_L2_FAX) |
1da177e4 LT |
923 | #endif |
924 | ) { | |
925 | l2 = ISDN_PROTO_L2_TRANS; | |
926 | usg = ISDN_USAGE_VOICE; | |
927 | } | |
928 | #endif | |
929 | m->mdmreg[REG_SI1I] = si2bit[si]; | |
930 | spin_lock_irqsave(&dev->lock, flags); | |
931 | i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn); | |
932 | if (i < 0) { | |
933 | spin_unlock_irqrestore(&dev->lock, flags); | |
934 | isdn_tty_modem_result(RESULT_NO_DIALTONE, info); | |
935 | } else { | |
936 | info->isdn_driver = dev->drvmap[i]; | |
937 | info->isdn_channel = dev->chanmap[i]; | |
938 | info->drv_index = i; | |
939 | dev->m_idx[i] = info->line; | |
940 | dev->usage[i] |= ISDN_USAGE_OUTGOING; | |
941 | info->last_dir = 1; | |
942 | isdn_info_update(); | |
943 | spin_unlock_irqrestore(&dev->lock, flags); | |
944 | cmd.driver = info->isdn_driver; | |
945 | cmd.arg = info->isdn_channel; | |
946 | cmd.command = ISDN_CMD_CLREAZ; | |
947 | isdn_command(&cmd); | |
948 | strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver)); | |
949 | cmd.driver = info->isdn_driver; | |
950 | cmd.command = ISDN_CMD_SETEAZ; | |
951 | isdn_command(&cmd); | |
952 | cmd.driver = info->isdn_driver; | |
953 | cmd.command = ISDN_CMD_SETL2; | |
954 | info->last_l2 = l2; | |
955 | cmd.arg = info->isdn_channel + (l2 << 8); | |
956 | isdn_command(&cmd); | |
957 | cmd.driver = info->isdn_driver; | |
958 | cmd.command = ISDN_CMD_SETL3; | |
959 | cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); | |
960 | isdn_command(&cmd); | |
961 | cmd.driver = info->isdn_driver; | |
962 | cmd.arg = info->isdn_channel; | |
475be4d8 | 963 | cmd.parm.cmsg.Length = l + 14; |
1da177e4 LT |
964 | cmd.parm.cmsg.Command = CAPI_MANUFACTURER; |
965 | cmd.parm.cmsg.Subcommand = CAPI_REQ; | |
966 | cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1; | |
475be4d8 | 967 | cmd.parm.cmsg.para[0] = l + 1; |
1da177e4 | 968 | strncpy(&cmd.parm.cmsg.para[1], msg, l); |
475be4d8 JP |
969 | cmd.parm.cmsg.para[l + 1] = 0xd; |
970 | cmd.command = CAPI_PUT_MESSAGE; | |
1da177e4 LT |
971 | /* info->dialing = 1; |
972 | strcpy(dev->num[i], n); | |
973 | isdn_info_update(); | |
974 | */ | |
975 | isdn_command(&cmd); | |
976 | } | |
977 | } | |
978 | ||
979 | static inline int | |
980 | isdn_tty_paranoia_check(modem_info *info, char *name, const char *routine) | |
981 | { | |
982 | #ifdef MODEM_PARANOIA_CHECK | |
983 | if (!info) { | |
984 | printk(KERN_WARNING "isdn_tty: null info_struct for %s in %s\n", | |
475be4d8 | 985 | name, routine); |
1da177e4 LT |
986 | return 1; |
987 | } | |
988 | if (info->magic != ISDN_ASYNC_MAGIC) { | |
989 | printk(KERN_WARNING "isdn_tty: bad magic for modem struct %s in %s\n", | |
990 | name, routine); | |
991 | return 1; | |
992 | } | |
993 | #endif | |
994 | return 0; | |
995 | } | |
996 | ||
997 | /* | |
998 | * This routine is called to set the UART divisor registers to match | |
999 | * the specified baud rate for a serial port. | |
1000 | */ | |
1001 | static void | |
475be4d8 | 1002 | isdn_tty_change_speed(modem_info *info) |
1da177e4 | 1003 | { |
265d6f00 | 1004 | struct tty_port *port = &info->port; |
1da177e4 | 1005 | uint cflag, |
475be4d8 JP |
1006 | cval, |
1007 | quot; | |
1da177e4 LT |
1008 | int i; |
1009 | ||
adc8d746 | 1010 | if (!port->tty) |
1da177e4 | 1011 | return; |
adc8d746 | 1012 | cflag = port->tty->termios.c_cflag; |
1da177e4 LT |
1013 | |
1014 | quot = i = cflag & CBAUD; | |
1015 | if (i & CBAUDEX) { | |
1016 | i &= ~CBAUDEX; | |
1017 | if (i < 1 || i > 2) | |
adc8d746 | 1018 | port->tty->termios.c_cflag &= ~CBAUDEX; |
1da177e4 LT |
1019 | else |
1020 | i += 15; | |
1021 | } | |
1022 | if (quot) { | |
1023 | info->mcr |= UART_MCR_DTR; | |
1024 | isdn_tty_modem_ncarrier(info); | |
1025 | } else { | |
1026 | info->mcr &= ~UART_MCR_DTR; | |
1027 | if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) { | |
1028 | #ifdef ISDN_DEBUG_MODEM_HUP | |
1029 | printk(KERN_DEBUG "Mhup in changespeed\n"); | |
1030 | #endif | |
1031 | if (info->online) | |
1032 | info->ncarrier = 1; | |
1033 | isdn_tty_modem_reset_regs(info, 0); | |
1034 | isdn_tty_modem_hup(info, 1); | |
1035 | } | |
1036 | return; | |
1037 | } | |
1038 | /* byte size and parity */ | |
1039 | cval = cflag & (CSIZE | CSTOPB); | |
1040 | cval >>= 4; | |
1041 | if (cflag & PARENB) | |
1042 | cval |= UART_LCR_PARITY; | |
1043 | if (!(cflag & PARODD)) | |
1044 | cval |= UART_LCR_EPAR; | |
1da177e4 LT |
1045 | |
1046 | /* CTS flow control flag and modem status interrupts */ | |
1047 | if (cflag & CRTSCTS) { | |
265d6f00 | 1048 | port->flags |= ASYNC_CTS_FLOW; |
1da177e4 | 1049 | } else |
265d6f00 | 1050 | port->flags &= ~ASYNC_CTS_FLOW; |
1da177e4 | 1051 | if (cflag & CLOCAL) |
265d6f00 | 1052 | port->flags &= ~ASYNC_CHECK_CD; |
1da177e4 | 1053 | else { |
265d6f00 | 1054 | port->flags |= ASYNC_CHECK_CD; |
1da177e4 LT |
1055 | } |
1056 | } | |
1057 | ||
1058 | static int | |
475be4d8 | 1059 | isdn_tty_startup(modem_info *info) |
1da177e4 | 1060 | { |
48decc1c | 1061 | if (info->port.flags & ASYNC_INITIALIZED) |
1da177e4 LT |
1062 | return 0; |
1063 | isdn_lock_drivers(); | |
1064 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1065 | printk(KERN_DEBUG "starting up ttyi%d ...\n", info->line); | |
1066 | #endif | |
1067 | /* | |
1068 | * Now, initialize the UART | |
1069 | */ | |
1070 | info->mcr = UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2; | |
ba43294d JS |
1071 | if (info->port.tty) |
1072 | clear_bit(TTY_IO_ERROR, &info->port.tty->flags); | |
1da177e4 LT |
1073 | /* |
1074 | * and set the speed of the serial port | |
1075 | */ | |
1076 | isdn_tty_change_speed(info); | |
1077 | ||
48decc1c | 1078 | info->port.flags |= ASYNC_INITIALIZED; |
1da177e4 LT |
1079 | info->msr |= (UART_MSR_DSR | UART_MSR_CTS); |
1080 | info->send_outstanding = 0; | |
1081 | return 0; | |
1082 | } | |
1083 | ||
1084 | /* | |
1085 | * This routine will shutdown a serial port; interrupts are disabled, and | |
1086 | * DTR is dropped if the hangup on close termio flag is on. | |
1087 | */ | |
1088 | static void | |
475be4d8 | 1089 | isdn_tty_shutdown(modem_info *info) |
1da177e4 | 1090 | { |
48decc1c | 1091 | if (!(info->port.flags & ASYNC_INITIALIZED)) |
1da177e4 LT |
1092 | return; |
1093 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1094 | printk(KERN_DEBUG "Shutting down isdnmodem port %d ....\n", info->line); | |
1095 | #endif | |
1096 | isdn_unlock_drivers(); | |
1097 | info->msr &= ~UART_MSR_RI; | |
adc8d746 | 1098 | if (!info->port.tty || (info->port.tty->termios.c_cflag & HUPCL)) { |
1da177e4 LT |
1099 | info->mcr &= ~(UART_MCR_DTR | UART_MCR_RTS); |
1100 | if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) { | |
1101 | isdn_tty_modem_reset_regs(info, 0); | |
1102 | #ifdef ISDN_DEBUG_MODEM_HUP | |
1103 | printk(KERN_DEBUG "Mhup in isdn_tty_shutdown\n"); | |
1104 | #endif | |
1105 | isdn_tty_modem_hup(info, 1); | |
1106 | } | |
1107 | } | |
ba43294d JS |
1108 | if (info->port.tty) |
1109 | set_bit(TTY_IO_ERROR, &info->port.tty->flags); | |
1da177e4 | 1110 | |
48decc1c | 1111 | info->port.flags &= ~ASYNC_INITIALIZED; |
1da177e4 LT |
1112 | } |
1113 | ||
1114 | /* isdn_tty_write() is the main send-routine. It is called from the upper | |
1115 | * levels within the kernel to perform sending data. Depending on the | |
1116 | * online-flag it either directs output to the at-command-interpreter or | |
1117 | * to the lower level. Additional tasks done here: | |
1118 | * - If online, check for escape-sequence (+++) | |
1119 | * - If sending audio-data, call isdn_tty_DLEdown() to parse DLE-codes. | |
1120 | * - If receiving audio-data, call isdn_tty_end_vrx() to abort if needed. | |
1121 | * - If dialing, abort dial. | |
1122 | */ | |
1123 | static int | |
475be4d8 | 1124 | isdn_tty_write(struct tty_struct *tty, const u_char *buf, int count) |
1da177e4 LT |
1125 | { |
1126 | int c; | |
1127 | int total = 0; | |
1128 | modem_info *info = (modem_info *) tty->driver_data; | |
1129 | atemu *m = &info->emu; | |
1130 | ||
1131 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_write")) | |
1132 | return 0; | |
1133 | /* See isdn_tty_senddown() */ | |
1134 | atomic_inc(&info->xmit_lock); | |
1135 | while (1) { | |
1136 | c = count; | |
1137 | if (c > info->xmit_size - info->xmit_count) | |
1138 | c = info->xmit_size - info->xmit_count; | |
1139 | if (info->isdn_driver >= 0 && c > dev->drv[info->isdn_driver]->maxbufsize) | |
1140 | c = dev->drv[info->isdn_driver]->maxbufsize; | |
1141 | if (c <= 0) | |
1142 | break; | |
1143 | if ((info->online > 1) | |
1144 | #ifdef CONFIG_ISDN_AUDIO | |
1145 | || (info->vonline & 3) | |
1146 | #endif | |
1147 | ) { | |
1148 | #ifdef CONFIG_ISDN_AUDIO | |
1149 | if (!info->vonline) | |
1150 | #endif | |
1151 | isdn_tty_check_esc(buf, m->mdmreg[REG_ESC], c, | |
1152 | &(m->pluscount), | |
1153 | &(m->lastplus)); | |
82e46b31 | 1154 | memcpy(&info->port.xmit_buf[info->xmit_count], buf, c); |
1da177e4 LT |
1155 | #ifdef CONFIG_ISDN_AUDIO |
1156 | if (info->vonline) { | |
1157 | int cc = isdn_tty_handleDLEdown(info, m, c); | |
1158 | if (info->vonline & 2) { | |
1159 | if (!cc) { | |
1160 | /* If DLE decoding results in zero-transmit, but | |
1161 | * c originally was non-zero, do a wakeup. | |
1162 | */ | |
1163 | tty_wakeup(tty); | |
1164 | info->msr |= UART_MSR_CTS; | |
1165 | info->lsr |= UART_LSR_TEMT; | |
1166 | } | |
1167 | info->xmit_count += cc; | |
1168 | } | |
1169 | if ((info->vonline & 3) == 1) { | |
1170 | /* Do NOT handle Ctrl-Q or Ctrl-S | |
1171 | * when in full-duplex audio mode. | |
1172 | */ | |
1173 | if (isdn_tty_end_vrx(buf, c)) { | |
1174 | info->vonline &= ~1; | |
1175 | #ifdef ISDN_DEBUG_MODEM_VOICE | |
1176 | printk(KERN_DEBUG | |
1177 | "got !^Q/^S, send DLE-ETX,VCON on ttyI%d\n", | |
1178 | info->line); | |
1179 | #endif | |
1180 | isdn_tty_at_cout("\020\003\r\nVCON\r\n", info); | |
1181 | } | |
1182 | } | |
1183 | } else | |
475be4d8 JP |
1184 | if (TTY_IS_FCLASS1(info)) { |
1185 | int cc = isdn_tty_handleDLEdown(info, m, c); | |
1186 | ||
1187 | if (info->vonline & 4) { /* ETX seen */ | |
1188 | isdn_ctrl c; | |
1189 | ||
1190 | c.command = ISDN_CMD_FAXCMD; | |
1191 | c.driver = info->isdn_driver; | |
1192 | c.arg = info->isdn_channel; | |
1193 | c.parm.aux.cmd = ISDN_FAX_CLASS1_CTRL; | |
1194 | c.parm.aux.subcmd = ETX; | |
1195 | isdn_command(&c); | |
1196 | } | |
1197 | info->vonline = 0; | |
1da177e4 | 1198 | #ifdef ISDN_DEBUG_MODEM_VOICE |
475be4d8 | 1199 | printk(KERN_DEBUG "fax dle cc/c %d/%d\n", cc, c); |
1da177e4 | 1200 | #endif |
475be4d8 JP |
1201 | info->xmit_count += cc; |
1202 | } else | |
1da177e4 | 1203 | #endif |
475be4d8 | 1204 | info->xmit_count += c; |
1da177e4 LT |
1205 | } else { |
1206 | info->msr |= UART_MSR_CTS; | |
1207 | info->lsr |= UART_LSR_TEMT; | |
1208 | if (info->dialing) { | |
1209 | info->dialing = 0; | |
1210 | #ifdef ISDN_DEBUG_MODEM_HUP | |
1211 | printk(KERN_DEBUG "Mhup in isdn_tty_write\n"); | |
1212 | #endif | |
1213 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
1214 | isdn_tty_modem_hup(info, 1); | |
1215 | } else | |
1216 | c = isdn_tty_edit_at(buf, c, info); | |
1217 | } | |
1218 | buf += c; | |
1219 | count -= c; | |
1220 | total += c; | |
1221 | } | |
1222 | atomic_dec(&info->xmit_lock); | |
b03efcfb | 1223 | if ((info->xmit_count) || !skb_queue_empty(&info->xmit_queue)) { |
1da177e4 LT |
1224 | if (m->mdmreg[REG_DXMT] & BIT_DXMT) { |
1225 | isdn_tty_senddown(info); | |
1226 | isdn_tty_tint(info); | |
1227 | } | |
1228 | isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, 1); | |
1229 | } | |
1230 | return total; | |
1231 | } | |
1232 | ||
1233 | static int | |
1234 | isdn_tty_write_room(struct tty_struct *tty) | |
1235 | { | |
1236 | modem_info *info = (modem_info *) tty->driver_data; | |
1237 | int ret; | |
1238 | ||
1239 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_write_room")) | |
1240 | return 0; | |
1241 | if (!info->online) | |
1242 | return info->xmit_size; | |
1243 | ret = info->xmit_size - info->xmit_count; | |
1244 | return (ret < 0) ? 0 : ret; | |
1245 | } | |
1246 | ||
1247 | static int | |
1248 | isdn_tty_chars_in_buffer(struct tty_struct *tty) | |
1249 | { | |
1250 | modem_info *info = (modem_info *) tty->driver_data; | |
1251 | ||
1252 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_chars_in_buffer")) | |
1253 | return 0; | |
1254 | if (!info->online) | |
1255 | return 0; | |
1256 | return (info->xmit_count); | |
1257 | } | |
1258 | ||
1259 | static void | |
1260 | isdn_tty_flush_buffer(struct tty_struct *tty) | |
1261 | { | |
1262 | modem_info *info; | |
1263 | ||
1264 | if (!tty) { | |
1265 | return; | |
1266 | } | |
1267 | info = (modem_info *) tty->driver_data; | |
1268 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_flush_buffer")) { | |
1269 | return; | |
1270 | } | |
1271 | isdn_tty_cleanup_xmit(info); | |
1272 | info->xmit_count = 0; | |
1da177e4 LT |
1273 | tty_wakeup(tty); |
1274 | } | |
1275 | ||
1276 | static void | |
1277 | isdn_tty_flush_chars(struct tty_struct *tty) | |
1278 | { | |
1279 | modem_info *info = (modem_info *) tty->driver_data; | |
1280 | ||
1281 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_flush_chars")) | |
1282 | return; | |
b03efcfb | 1283 | if ((info->xmit_count) || !skb_queue_empty(&info->xmit_queue)) |
1da177e4 LT |
1284 | isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, 1); |
1285 | } | |
1286 | ||
1287 | /* | |
1288 | * ------------------------------------------------------------ | |
1289 | * isdn_tty_throttle() | |
1290 | * | |
1291 | * This routine is called by the upper-layer tty layer to signal that | |
1292 | * incoming characters should be throttled. | |
1293 | * ------------------------------------------------------------ | |
1294 | */ | |
1295 | static void | |
1296 | isdn_tty_throttle(struct tty_struct *tty) | |
1297 | { | |
1298 | modem_info *info = (modem_info *) tty->driver_data; | |
1299 | ||
1300 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_throttle")) | |
1301 | return; | |
1302 | if (I_IXOFF(tty)) | |
1303 | info->x_char = STOP_CHAR(tty); | |
1304 | info->mcr &= ~UART_MCR_RTS; | |
1305 | } | |
1306 | ||
1307 | static void | |
1308 | isdn_tty_unthrottle(struct tty_struct *tty) | |
1309 | { | |
1310 | modem_info *info = (modem_info *) tty->driver_data; | |
1311 | ||
1312 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_unthrottle")) | |
1313 | return; | |
1314 | if (I_IXOFF(tty)) { | |
1315 | if (info->x_char) | |
1316 | info->x_char = 0; | |
1317 | else | |
1318 | info->x_char = START_CHAR(tty); | |
1319 | } | |
1320 | info->mcr |= UART_MCR_RTS; | |
1321 | } | |
1322 | ||
1323 | /* | |
1324 | * ------------------------------------------------------------ | |
1325 | * isdn_tty_ioctl() and friends | |
1326 | * ------------------------------------------------------------ | |
1327 | */ | |
1328 | ||
1329 | /* | |
1330 | * isdn_tty_get_lsr_info - get line status register info | |
1331 | * | |
1332 | * Purpose: Let user call ioctl() to get info when the UART physically | |
1333 | * is emptied. On bus types like RS485, the transmitter must | |
1334 | * release the bus after transmitting. This must be done when | |
1335 | * the transmit shift register is empty, not be done when the | |
1336 | * transmit holding register is empty. This functionality | |
1337 | * allows RS485 driver to be written in user space. | |
1338 | */ | |
1339 | static int | |
475be4d8 | 1340 | isdn_tty_get_lsr_info(modem_info *info, uint __user *value) |
1da177e4 LT |
1341 | { |
1342 | u_char status; | |
1343 | uint result; | |
1344 | ||
1345 | status = info->lsr; | |
1346 | result = ((status & UART_LSR_TEMT) ? TIOCSER_TEMT : 0); | |
1347 | return put_user(result, value); | |
1348 | } | |
1349 | ||
1350 | ||
1351 | static int | |
60b33c13 | 1352 | isdn_tty_tiocmget(struct tty_struct *tty) |
1da177e4 LT |
1353 | { |
1354 | modem_info *info = (modem_info *) tty->driver_data; | |
1355 | u_char control, status; | |
1356 | ||
156f1ed6 | 1357 | if (isdn_tty_paranoia_check(info, tty->name, __func__)) |
1da177e4 LT |
1358 | return -ENODEV; |
1359 | if (tty->flags & (1 << TTY_IO_ERROR)) | |
1360 | return -EIO; | |
1361 | ||
72250d44 | 1362 | mutex_lock(&modem_info_mutex); |
1da177e4 LT |
1363 | #ifdef ISDN_DEBUG_MODEM_IOCTL |
1364 | printk(KERN_DEBUG "ttyI%d ioctl TIOCMGET\n", info->line); | |
1365 | #endif | |
1366 | ||
1367 | control = info->mcr; | |
1368 | status = info->msr; | |
72250d44 | 1369 | mutex_unlock(&modem_info_mutex); |
1da177e4 | 1370 | return ((control & UART_MCR_RTS) ? TIOCM_RTS : 0) |
475be4d8 JP |
1371 | | ((control & UART_MCR_DTR) ? TIOCM_DTR : 0) |
1372 | | ((status & UART_MSR_DCD) ? TIOCM_CAR : 0) | |
1373 | | ((status & UART_MSR_RI) ? TIOCM_RNG : 0) | |
1374 | | ((status & UART_MSR_DSR) ? TIOCM_DSR : 0) | |
1375 | | ((status & UART_MSR_CTS) ? TIOCM_CTS : 0); | |
1da177e4 LT |
1376 | } |
1377 | ||
1378 | static int | |
20b9d177 | 1379 | isdn_tty_tiocmset(struct tty_struct *tty, |
475be4d8 | 1380 | unsigned int set, unsigned int clear) |
1da177e4 LT |
1381 | { |
1382 | modem_info *info = (modem_info *) tty->driver_data; | |
1383 | ||
156f1ed6 | 1384 | if (isdn_tty_paranoia_check(info, tty->name, __func__)) |
1da177e4 LT |
1385 | return -ENODEV; |
1386 | if (tty->flags & (1 << TTY_IO_ERROR)) | |
1387 | return -EIO; | |
1388 | ||
1389 | #ifdef ISDN_DEBUG_MODEM_IOCTL | |
1390 | printk(KERN_DEBUG "ttyI%d ioctl TIOCMxxx: %x %x\n", info->line, set, clear); | |
1391 | #endif | |
1392 | ||
72250d44 | 1393 | mutex_lock(&modem_info_mutex); |
1da177e4 LT |
1394 | if (set & TIOCM_RTS) |
1395 | info->mcr |= UART_MCR_RTS; | |
1396 | if (set & TIOCM_DTR) { | |
1397 | info->mcr |= UART_MCR_DTR; | |
1398 | isdn_tty_modem_ncarrier(info); | |
1399 | } | |
1400 | ||
1401 | if (clear & TIOCM_RTS) | |
1402 | info->mcr &= ~UART_MCR_RTS; | |
1403 | if (clear & TIOCM_DTR) { | |
1404 | info->mcr &= ~UART_MCR_DTR; | |
1405 | if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) { | |
1406 | isdn_tty_modem_reset_regs(info, 0); | |
1407 | #ifdef ISDN_DEBUG_MODEM_HUP | |
1408 | printk(KERN_DEBUG "Mhup in TIOCMSET\n"); | |
1409 | #endif | |
1410 | if (info->online) | |
1411 | info->ncarrier = 1; | |
1412 | isdn_tty_modem_hup(info, 1); | |
1413 | } | |
1414 | } | |
72250d44 | 1415 | mutex_unlock(&modem_info_mutex); |
1da177e4 LT |
1416 | return 0; |
1417 | } | |
1418 | ||
1419 | static int | |
6caa76b7 | 1420 | isdn_tty_ioctl(struct tty_struct *tty, uint cmd, ulong arg) |
1da177e4 LT |
1421 | { |
1422 | modem_info *info = (modem_info *) tty->driver_data; | |
1423 | int retval; | |
1424 | ||
1425 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_ioctl")) | |
1426 | return -ENODEV; | |
1427 | if (tty->flags & (1 << TTY_IO_ERROR)) | |
1428 | return -EIO; | |
1429 | switch (cmd) { | |
475be4d8 | 1430 | case TCSBRK: /* SVID version: non-zero arg --> no break */ |
1da177e4 | 1431 | #ifdef ISDN_DEBUG_MODEM_IOCTL |
475be4d8 JP |
1432 | printk(KERN_DEBUG "ttyI%d ioctl TCSBRK\n", info->line); |
1433 | #endif | |
1434 | retval = tty_check_change(tty); | |
1435 | if (retval) | |
1436 | return retval; | |
1437 | tty_wait_until_sent(tty, 0); | |
1438 | return 0; | |
1439 | case TCSBRKP: /* support for POSIX tcsendbreak() */ | |
1da177e4 | 1440 | #ifdef ISDN_DEBUG_MODEM_IOCTL |
475be4d8 JP |
1441 | printk(KERN_DEBUG "ttyI%d ioctl TCSBRKP\n", info->line); |
1442 | #endif | |
1443 | retval = tty_check_change(tty); | |
1444 | if (retval) | |
1445 | return retval; | |
1446 | tty_wait_until_sent(tty, 0); | |
1447 | return 0; | |
1448 | case TIOCSERGETLSR: /* Get line status register */ | |
1da177e4 | 1449 | #ifdef ISDN_DEBUG_MODEM_IOCTL |
475be4d8 | 1450 | printk(KERN_DEBUG "ttyI%d ioctl TIOCSERGETLSR\n", info->line); |
1da177e4 | 1451 | #endif |
475be4d8 JP |
1452 | return isdn_tty_get_lsr_info(info, (uint __user *) arg); |
1453 | default: | |
1da177e4 | 1454 | #ifdef ISDN_DEBUG_MODEM_IOCTL |
475be4d8 | 1455 | printk(KERN_DEBUG "UNKNOWN ioctl 0x%08x on ttyi%d\n", cmd, info->line); |
1da177e4 | 1456 | #endif |
475be4d8 | 1457 | return -ENOIOCTLCMD; |
1da177e4 LT |
1458 | } |
1459 | return 0; | |
1460 | } | |
1461 | ||
1462 | static void | |
606d099c | 1463 | isdn_tty_set_termios(struct tty_struct *tty, struct ktermios *old_termios) |
1da177e4 LT |
1464 | { |
1465 | modem_info *info = (modem_info *) tty->driver_data; | |
1466 | ||
1467 | if (!old_termios) | |
1468 | isdn_tty_change_speed(info); | |
1469 | else { | |
adc8d746 AC |
1470 | if (tty->termios.c_cflag == old_termios->c_cflag && |
1471 | tty->termios.c_ispeed == old_termios->c_ispeed && | |
1472 | tty->termios.c_ospeed == old_termios->c_ospeed) | |
1da177e4 LT |
1473 | return; |
1474 | isdn_tty_change_speed(info); | |
1da177e4 LT |
1475 | } |
1476 | } | |
1477 | ||
1478 | /* | |
1479 | * ------------------------------------------------------------ | |
1480 | * isdn_tty_open() and friends | |
1481 | * ------------------------------------------------------------ | |
1482 | */ | |
042b9e7c | 1483 | |
f7e0405e JS |
1484 | static int isdn_tty_install(struct tty_driver *driver, struct tty_struct *tty) |
1485 | { | |
1486 | modem_info *info = &dev->mdm.info[tty->index]; | |
1487 | ||
1488 | if (isdn_tty_paranoia_check(info, tty->name, __func__)) | |
1489 | return -ENODEV; | |
1490 | ||
1491 | tty->driver_data = info; | |
1492 | ||
1493 | return tty_port_install(&info->port, driver, tty); | |
1494 | } | |
1495 | ||
1da177e4 LT |
1496 | /* |
1497 | * This routine is called whenever a serial port is opened. It | |
1498 | * enables interrupts for a serial port, linking in its async structure into | |
1499 | * the IRQ chain. It also performs the serial-specific | |
1500 | * initialization for the tty structure. | |
1501 | */ | |
1502 | static int | |
1503 | isdn_tty_open(struct tty_struct *tty, struct file *filp) | |
1504 | { | |
f7e0405e JS |
1505 | modem_info *info = tty->driver_data; |
1506 | struct tty_port *port = &info->port; | |
410235fd | 1507 | int retval; |
1da177e4 | 1508 | |
1da177e4 | 1509 | #ifdef ISDN_DEBUG_MODEM_OPEN |
475be4d8 | 1510 | printk(KERN_DEBUG "isdn_tty_open %s, count = %d\n", tty->name, |
265d6f00 | 1511 | port->count); |
1da177e4 | 1512 | #endif |
265d6f00 | 1513 | port->count++; |
265d6f00 | 1514 | port->tty = tty; |
1da177e4 LT |
1515 | /* |
1516 | * Start up serial port | |
1517 | */ | |
1518 | retval = isdn_tty_startup(info); | |
1519 | if (retval) { | |
1520 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1521 | printk(KERN_DEBUG "isdn_tty_open return after startup\n"); | |
1522 | #endif | |
1da177e4 LT |
1523 | return retval; |
1524 | } | |
875d54aa | 1525 | retval = tty_port_block_til_ready(port, tty, filp); |
1da177e4 LT |
1526 | if (retval) { |
1527 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1528 | printk(KERN_DEBUG "isdn_tty_open return after isdn_tty_block_til_ready \n"); | |
1529 | #endif | |
1da177e4 LT |
1530 | return retval; |
1531 | } | |
1532 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1533 | printk(KERN_DEBUG "isdn_tty_open ttyi%d successful...\n", info->line); | |
1534 | #endif | |
1535 | dev->modempoll++; | |
1536 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1537 | printk(KERN_DEBUG "isdn_tty_open normal exit\n"); | |
1538 | #endif | |
1539 | return 0; | |
1540 | } | |
1541 | ||
1542 | static void | |
1543 | isdn_tty_close(struct tty_struct *tty, struct file *filp) | |
1544 | { | |
1545 | modem_info *info = (modem_info *) tty->driver_data; | |
265d6f00 | 1546 | struct tty_port *port = &info->port; |
1da177e4 LT |
1547 | ulong timeout; |
1548 | ||
1549 | if (!info || isdn_tty_paranoia_check(info, tty->name, "isdn_tty_close")) | |
1550 | return; | |
1551 | if (tty_hung_up_p(filp)) { | |
1552 | #ifdef ISDN_DEBUG_MODEM_OPEN | |
1553 | printk(KERN_DEBUG "isdn_tty_close return after tty_hung_up_p\n"); | |
1554 | #endif | |
1555 | return; | |
1556 | } | |
265d6f00 | 1557 | if ((tty->count == 1) && (port->count != 1)) { |
1da177e4 LT |
1558 | /* |
1559 | * Uh, oh. tty->count is 1, which means that the tty | |
1560 | * structure will be freed. Info->count should always | |
1561 | * be one in these conditions. If it's greater than | |
1562 | * one, we've got real problems, since it means the | |
1563 | * serial port won't be shutdown. | |
1564 | */ | |
1565 | printk(KERN_ERR "isdn_tty_close: bad port count; tty->count is 1, " | |
265d6f00 JS |
1566 | "info->count is %d\n", port->count); |
1567 | port->count = 1; | |
1da177e4 | 1568 | } |
265d6f00 | 1569 | if (--port->count < 0) { |
1da177e4 | 1570 | printk(KERN_ERR "isdn_tty_close: bad port count for ttyi%d: %d\n", |
265d6f00 JS |
1571 | info->line, port->count); |
1572 | port->count = 0; | |
1da177e4 | 1573 | } |
265d6f00 | 1574 | if (port->count) { |
1da177e4 LT |
1575 | #ifdef ISDN_DEBUG_MODEM_OPEN |
1576 | printk(KERN_DEBUG "isdn_tty_close after info->count != 0\n"); | |
1577 | #endif | |
1578 | return; | |
1579 | } | |
265d6f00 | 1580 | port->flags |= ASYNC_CLOSING; |
1da177e4 LT |
1581 | |
1582 | tty->closing = 1; | |
1583 | /* | |
1584 | * At this point we stop accepting input. To do this, we | |
1585 | * disable the receive line status interrupts, and tell the | |
1586 | * interrupt driver to stop checking the data ready bit in the | |
1587 | * line status register. | |
1588 | */ | |
265d6f00 | 1589 | if (port->flags & ASYNC_INITIALIZED) { |
0b058353 | 1590 | tty_wait_until_sent_from_close(tty, 3000); /* 30 seconds timeout */ |
1da177e4 LT |
1591 | /* |
1592 | * Before we drop DTR, make sure the UART transmitter | |
1593 | * has completely drained; this is especially | |
1594 | * important if there is a transmit FIFO! | |
1595 | */ | |
1596 | timeout = jiffies + HZ; | |
1597 | while (!(info->lsr & UART_LSR_TEMT)) { | |
24763c48 | 1598 | schedule_timeout_interruptible(20); |
475be4d8 | 1599 | if (time_after(jiffies, timeout)) |
1da177e4 LT |
1600 | break; |
1601 | } | |
1602 | } | |
1603 | dev->modempoll--; | |
1604 | isdn_tty_shutdown(info); | |
978e595f | 1605 | isdn_tty_flush_buffer(tty); |
1da177e4 | 1606 | tty_ldisc_flush(tty); |
265d6f00 | 1607 | port->tty = NULL; |
1da177e4 | 1608 | info->ncarrier = 0; |
4330d663 JS |
1609 | |
1610 | tty_port_close_end(port, tty); | |
1da177e4 LT |
1611 | #ifdef ISDN_DEBUG_MODEM_OPEN |
1612 | printk(KERN_DEBUG "isdn_tty_close normal exit\n"); | |
1613 | #endif | |
1614 | } | |
1615 | ||
1616 | /* | |
1617 | * isdn_tty_hangup() --- called by tty_hangup() when a hangup is signaled. | |
1618 | */ | |
1619 | static void | |
1620 | isdn_tty_hangup(struct tty_struct *tty) | |
1621 | { | |
1622 | modem_info *info = (modem_info *) tty->driver_data; | |
265d6f00 | 1623 | struct tty_port *port = &info->port; |
1da177e4 LT |
1624 | |
1625 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_hangup")) | |
1626 | return; | |
1627 | isdn_tty_shutdown(info); | |
265d6f00 JS |
1628 | port->count = 0; |
1629 | port->flags &= ~ASYNC_NORMAL_ACTIVE; | |
1630 | port->tty = NULL; | |
1631 | wake_up_interruptible(&port->open_wait); | |
1da177e4 LT |
1632 | } |
1633 | ||
1634 | /* This routine initializes all emulator-data. | |
1635 | */ | |
1636 | static void | |
475be4d8 | 1637 | isdn_tty_reset_profile(atemu *m) |
1da177e4 LT |
1638 | { |
1639 | m->profile[0] = 0; | |
1640 | m->profile[1] = 0; | |
1641 | m->profile[2] = 43; | |
1642 | m->profile[3] = 13; | |
1643 | m->profile[4] = 10; | |
1644 | m->profile[5] = 8; | |
1645 | m->profile[6] = 3; | |
1646 | m->profile[7] = 60; | |
1647 | m->profile[8] = 2; | |
1648 | m->profile[9] = 6; | |
1649 | m->profile[10] = 7; | |
1650 | m->profile[11] = 70; | |
1651 | m->profile[12] = 0x45; | |
1652 | m->profile[13] = 4; | |
1653 | m->profile[14] = ISDN_PROTO_L2_X75I; | |
1654 | m->profile[15] = ISDN_PROTO_L3_TRANS; | |
1655 | m->profile[16] = ISDN_SERIAL_XMIT_SIZE / 16; | |
1656 | m->profile[17] = ISDN_MODEM_WINSIZE; | |
1657 | m->profile[18] = 4; | |
1658 | m->profile[19] = 0; | |
1659 | m->profile[20] = 0; | |
1660 | m->profile[23] = 0; | |
1661 | m->pmsn[0] = '\0'; | |
1662 | m->plmsn[0] = '\0'; | |
1663 | } | |
1664 | ||
1665 | #ifdef CONFIG_ISDN_AUDIO | |
1666 | static void | |
475be4d8 | 1667 | isdn_tty_modem_reset_vpar(atemu *m) |
1da177e4 LT |
1668 | { |
1669 | m->vpar[0] = 2; /* Voice-device (2 = phone line) */ | |
1670 | m->vpar[1] = 0; /* Silence detection level (0 = none ) */ | |
1671 | m->vpar[2] = 70; /* Silence interval (7 sec. ) */ | |
1672 | m->vpar[3] = 2; /* Compression type (1 = ADPCM-2 ) */ | |
1673 | m->vpar[4] = 0; /* DTMF detection level (0 = softcode ) */ | |
1674 | m->vpar[5] = 8; /* DTMF interval (8 * 5 ms. ) */ | |
1675 | } | |
1676 | #endif | |
1677 | ||
1678 | #ifdef CONFIG_ISDN_TTY_FAX | |
1679 | static void | |
475be4d8 | 1680 | isdn_tty_modem_reset_faxpar(modem_info *info) |
1da177e4 LT |
1681 | { |
1682 | T30_s *f = info->fax; | |
1683 | ||
1684 | f->code = 0; | |
1685 | f->phase = ISDN_FAX_PHASE_IDLE; | |
1686 | f->direction = 0; | |
1687 | f->resolution = 1; /* fine */ | |
1688 | f->rate = 5; /* 14400 bit/s */ | |
1689 | f->width = 0; | |
1690 | f->length = 0; | |
1691 | f->compression = 0; | |
1692 | f->ecm = 0; | |
1693 | f->binary = 0; | |
1694 | f->scantime = 0; | |
1695 | memset(&f->id[0], 32, FAXIDLEN - 1); | |
1696 | f->id[FAXIDLEN - 1] = 0; | |
1697 | f->badlin = 0; | |
1698 | f->badmul = 0; | |
1699 | f->bor = 0; | |
1700 | f->nbc = 0; | |
1701 | f->cq = 0; | |
1702 | f->cr = 0; | |
1703 | f->ctcrty = 0; | |
1704 | f->minsp = 0; | |
1705 | f->phcto = 30; | |
1706 | f->rel = 0; | |
1707 | memset(&f->pollid[0], 32, FAXIDLEN - 1); | |
1708 | f->pollid[FAXIDLEN - 1] = 0; | |
1709 | } | |
1710 | #endif | |
1711 | ||
1712 | static void | |
475be4d8 | 1713 | isdn_tty_modem_reset_regs(modem_info *info, int force) |
1da177e4 LT |
1714 | { |
1715 | atemu *m = &info->emu; | |
1716 | if ((m->mdmreg[REG_DTRR] & BIT_DTRR) || force) { | |
1717 | memcpy(m->mdmreg, m->profile, ISDN_MODEM_NUMREG); | |
1718 | memcpy(m->msn, m->pmsn, ISDN_MSNLEN); | |
1719 | memcpy(m->lmsn, m->plmsn, ISDN_LMSNLEN); | |
1720 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16; | |
1721 | } | |
1722 | #ifdef CONFIG_ISDN_AUDIO | |
1723 | isdn_tty_modem_reset_vpar(m); | |
1724 | #endif | |
1725 | #ifdef CONFIG_ISDN_TTY_FAX | |
1726 | isdn_tty_modem_reset_faxpar(info); | |
1727 | #endif | |
1728 | m->mdmcmdl = 0; | |
1729 | } | |
1730 | ||
1731 | static void | |
475be4d8 | 1732 | modem_write_profile(atemu *m) |
1da177e4 LT |
1733 | { |
1734 | memcpy(m->profile, m->mdmreg, ISDN_MODEM_NUMREG); | |
1735 | memcpy(m->pmsn, m->msn, ISDN_MSNLEN); | |
1736 | memcpy(m->plmsn, m->lmsn, ISDN_LMSNLEN); | |
1737 | if (dev->profd) | |
1738 | send_sig(SIGIO, dev->profd, 1); | |
1739 | } | |
1740 | ||
b68e31d0 | 1741 | static const struct tty_operations modem_ops = { |
f7e0405e | 1742 | .install = isdn_tty_install, |
475be4d8 | 1743 | .open = isdn_tty_open, |
1da177e4 LT |
1744 | .close = isdn_tty_close, |
1745 | .write = isdn_tty_write, | |
1746 | .flush_chars = isdn_tty_flush_chars, | |
1747 | .write_room = isdn_tty_write_room, | |
1748 | .chars_in_buffer = isdn_tty_chars_in_buffer, | |
1749 | .flush_buffer = isdn_tty_flush_buffer, | |
1750 | .ioctl = isdn_tty_ioctl, | |
1751 | .throttle = isdn_tty_throttle, | |
1752 | .unthrottle = isdn_tty_unthrottle, | |
1753 | .set_termios = isdn_tty_set_termios, | |
1754 | .hangup = isdn_tty_hangup, | |
1755 | .tiocmget = isdn_tty_tiocmget, | |
1756 | .tiocmset = isdn_tty_tiocmset, | |
1757 | }; | |
1758 | ||
042b9e7c JS |
1759 | static int isdn_tty_carrier_raised(struct tty_port *port) |
1760 | { | |
1761 | modem_info *info = container_of(port, modem_info, port); | |
1762 | return info->msr & UART_MSR_DCD; | |
1763 | } | |
1764 | ||
1765 | static const struct tty_port_operations isdn_tty_port_ops = { | |
1766 | .carrier_raised = isdn_tty_carrier_raised, | |
1767 | }; | |
1768 | ||
1da177e4 LT |
1769 | int |
1770 | isdn_tty_modem_init(void) | |
1771 | { | |
1772 | isdn_modem_t *m; | |
1773 | int i, retval; | |
1774 | modem_info *info; | |
1775 | ||
1776 | m = &dev->mdm; | |
1777 | m->tty_modem = alloc_tty_driver(ISDN_MAX_CHANNELS); | |
1778 | if (!m->tty_modem) | |
1779 | return -ENOMEM; | |
1780 | m->tty_modem->name = "ttyI"; | |
1da177e4 LT |
1781 | m->tty_modem->major = ISDN_TTY_MAJOR; |
1782 | m->tty_modem->minor_start = 0; | |
1783 | m->tty_modem->type = TTY_DRIVER_TYPE_SERIAL; | |
1784 | m->tty_modem->subtype = SERIAL_TYPE_NORMAL; | |
1785 | m->tty_modem->init_termios = tty_std_termios; | |
1786 | m->tty_modem->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; | |
c4d6ebeb | 1787 | m->tty_modem->flags = TTY_DRIVER_REAL_RAW; |
1da177e4 LT |
1788 | m->tty_modem->driver_name = "isdn_tty"; |
1789 | tty_set_operations(m->tty_modem, &modem_ops); | |
1790 | retval = tty_register_driver(m->tty_modem); | |
1791 | if (retval) { | |
1792 | printk(KERN_WARNING "isdn_tty: Couldn't register modem-device\n"); | |
1793 | goto err; | |
1794 | } | |
1795 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
1796 | info = &m->info[i]; | |
1797 | #ifdef CONFIG_ISDN_TTY_FAX | |
1798 | if (!(info->fax = kmalloc(sizeof(T30_s), GFP_KERNEL))) { | |
1799 | printk(KERN_ERR "Could not allocate fax t30-buffer\n"); | |
1800 | retval = -ENOMEM; | |
1801 | goto err_unregister; | |
1802 | } | |
1da177e4 | 1803 | #endif |
48decc1c | 1804 | tty_port_init(&info->port); |
042b9e7c | 1805 | info->port.ops = &isdn_tty_port_ops; |
1da177e4 | 1806 | spin_lock_init(&info->readlock); |
1da177e4 LT |
1807 | sprintf(info->last_cause, "0000"); |
1808 | sprintf(info->last_num, "none"); | |
1809 | info->last_dir = 0; | |
1810 | info->last_lhup = 1; | |
1811 | info->last_l2 = -1; | |
1812 | info->last_si = 0; | |
1813 | isdn_tty_reset_profile(&info->emu); | |
1814 | isdn_tty_modem_reset_regs(info, 1); | |
1815 | info->magic = ISDN_ASYNC_MAGIC; | |
1816 | info->line = i; | |
1da177e4 | 1817 | info->x_char = 0; |
1da177e4 LT |
1818 | info->isdn_driver = -1; |
1819 | info->isdn_channel = -1; | |
1820 | info->drv_index = -1; | |
1821 | info->xmit_size = ISDN_SERIAL_XMIT_SIZE; | |
1822 | init_timer(&info->nc_timer); | |
1823 | info->nc_timer.function = isdn_tty_modem_do_ncarrier; | |
1824 | info->nc_timer.data = (unsigned long) info; | |
1825 | skb_queue_head_init(&info->xmit_queue); | |
1826 | #ifdef CONFIG_ISDN_AUDIO | |
1827 | skb_queue_head_init(&info->dtmf_queue); | |
1828 | #endif | |
82e46b31 JS |
1829 | info->port.xmit_buf = kmalloc(ISDN_SERIAL_XMIT_MAX + 5, |
1830 | GFP_KERNEL); | |
1831 | if (!info->port.xmit_buf) { | |
1da177e4 LT |
1832 | printk(KERN_ERR "Could not allocate modem xmit-buffer\n"); |
1833 | retval = -ENOMEM; | |
1834 | goto err_unregister; | |
1835 | } | |
1836 | /* Make room for T.70 header */ | |
82e46b31 | 1837 | info->port.xmit_buf += 4; |
1da177e4 LT |
1838 | } |
1839 | return 0; | |
1840 | err_unregister: | |
1841 | for (i--; i >= 0; i--) { | |
1842 | info = &m->info[i]; | |
1843 | #ifdef CONFIG_ISDN_TTY_FAX | |
1844 | kfree(info->fax); | |
1845 | #endif | |
82e46b31 | 1846 | kfree(info->port.xmit_buf - 4); |
191c5f10 JS |
1847 | info->port.xmit_buf = NULL; |
1848 | tty_port_destroy(&info->port); | |
1da177e4 LT |
1849 | } |
1850 | tty_unregister_driver(m->tty_modem); | |
475be4d8 | 1851 | err: |
1da177e4 LT |
1852 | put_tty_driver(m->tty_modem); |
1853 | m->tty_modem = NULL; | |
1854 | return retval; | |
1855 | } | |
1856 | ||
1857 | void | |
1858 | isdn_tty_exit(void) | |
1859 | { | |
1860 | modem_info *info; | |
1861 | int i; | |
1862 | ||
1863 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
1864 | info = &dev->mdm.info[i]; | |
1865 | isdn_tty_cleanup_xmit(info); | |
1866 | #ifdef CONFIG_ISDN_TTY_FAX | |
1867 | kfree(info->fax); | |
1868 | #endif | |
82e46b31 | 1869 | kfree(info->port.xmit_buf - 4); |
191c5f10 JS |
1870 | info->port.xmit_buf = NULL; |
1871 | tty_port_destroy(&info->port); | |
1da177e4 LT |
1872 | } |
1873 | tty_unregister_driver(dev->mdm.tty_modem); | |
1874 | put_tty_driver(dev->mdm.tty_modem); | |
1875 | dev->mdm.tty_modem = NULL; | |
1876 | } | |
1877 | ||
1878 | ||
1879 | /* | |
1880 | * isdn_tty_match_icall(char *MSN, atemu *tty_emulator, int dev_idx) | |
1881 | * match the MSN against the MSNs (glob patterns) defined for tty_emulator, | |
1882 | * and return 0 for match, 1 for no match, 2 if MSN could match if longer. | |
1883 | */ | |
1884 | ||
1885 | static int | |
1886 | isdn_tty_match_icall(char *cid, atemu *emu, int di) | |
1887 | { | |
1888 | #ifdef ISDN_DEBUG_MODEM_ICALL | |
1889 | printk(KERN_DEBUG "m_fi: msn=%s lmsn=%s mmsn=%s mreg[SI1]=%d mreg[SI2]=%d\n", | |
1890 | emu->msn, emu->lmsn, isdn_map_eaz2msn(emu->msn, di), | |
1891 | emu->mdmreg[REG_SI1], emu->mdmreg[REG_SI2]); | |
1892 | #endif | |
1893 | if (strlen(emu->lmsn)) { | |
1894 | char *p = emu->lmsn; | |
1895 | char *q; | |
1896 | int tmp; | |
1897 | int ret = 0; | |
1898 | ||
1899 | while (1) { | |
1900 | if ((q = strchr(p, ';'))) | |
1901 | *q = '\0'; | |
1902 | if ((tmp = isdn_msncmp(cid, isdn_map_eaz2msn(p, di))) > ret) | |
1903 | ret = tmp; | |
1904 | #ifdef ISDN_DEBUG_MODEM_ICALL | |
1905 | printk(KERN_DEBUG "m_fi: lmsnX=%s mmsn=%s -> tmp=%d\n", | |
1906 | p, isdn_map_eaz2msn(emu->msn, di), tmp); | |
1907 | #endif | |
1908 | if (q) { | |
1909 | *q = ';'; | |
1910 | p = q; | |
1911 | p++; | |
1912 | } | |
1913 | if (!tmp) | |
1914 | return 0; | |
1915 | if (!q) | |
1916 | break; | |
1917 | } | |
1918 | return ret; | |
1919 | } else { | |
1920 | int tmp; | |
1921 | tmp = isdn_msncmp(cid, isdn_map_eaz2msn(emu->msn, di)); | |
1922 | #ifdef ISDN_DEBUG_MODEM_ICALL | |
475be4d8 JP |
1923 | printk(KERN_DEBUG "m_fi: mmsn=%s -> tmp=%d\n", |
1924 | isdn_map_eaz2msn(emu->msn, di), tmp); | |
1da177e4 LT |
1925 | #endif |
1926 | return tmp; | |
1927 | } | |
1928 | } | |
1929 | ||
1930 | /* | |
1931 | * An incoming call-request has arrived. | |
1932 | * Search the tty-devices for an appropriate device and bind | |
1933 | * it to the ISDN-Channel. | |
1934 | * Return: | |
1935 | * | |
1936 | * 0 = No matching device found. | |
1937 | * 1 = A matching device found. | |
1938 | * 3 = No match found, but eventually would match, if | |
1939 | * CID is longer. | |
1940 | */ | |
1941 | int | |
1942 | isdn_tty_find_icall(int di, int ch, setup_parm *setup) | |
1943 | { | |
1944 | char *eaz; | |
1945 | int i; | |
1946 | int wret; | |
1947 | int idx; | |
1948 | int si1; | |
1949 | int si2; | |
1950 | char *nr; | |
1951 | ulong flags; | |
1952 | ||
1953 | if (!setup->phone[0]) { | |
1954 | nr = "0"; | |
1955 | printk(KERN_INFO "isdn_tty: Incoming call without OAD, assuming '0'\n"); | |
1956 | } else | |
1957 | nr = setup->phone; | |
1958 | si1 = (int) setup->si1; | |
1959 | si2 = (int) setup->si2; | |
1960 | if (!setup->eazmsn[0]) { | |
1961 | printk(KERN_WARNING "isdn_tty: Incoming call without CPN, assuming '0'\n"); | |
1962 | eaz = "0"; | |
1963 | } else | |
1964 | eaz = setup->eazmsn; | |
1965 | #ifdef ISDN_DEBUG_MODEM_ICALL | |
1966 | printk(KERN_DEBUG "m_fi: eaz=%s si1=%d si2=%d\n", eaz, si1, si2); | |
1967 | #endif | |
1968 | wret = 0; | |
1969 | spin_lock_irqsave(&dev->lock, flags); | |
1970 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
1971 | modem_info *info = &dev->mdm.info[i]; | |
1972 | ||
1b05f030 | 1973 | if (info->port.count == 0) |
475be4d8 | 1974 | continue; |
1da177e4 LT |
1975 | if ((info->emu.mdmreg[REG_SI1] & si2bit[si1]) && /* SI1 is matching */ |
1976 | (info->emu.mdmreg[REG_SI2] == si2)) { /* SI2 is matching */ | |
1977 | idx = isdn_dc2minor(di, ch); | |
1978 | #ifdef ISDN_DEBUG_MODEM_ICALL | |
1979 | printk(KERN_DEBUG "m_fi: match1 wret=%d\n", wret); | |
1980 | printk(KERN_DEBUG "m_fi: idx=%d flags=%08lx drv=%d ch=%d usg=%d\n", idx, | |
48decc1c JS |
1981 | info->port.flags, info->isdn_driver, |
1982 | info->isdn_channel, dev->usage[idx]); | |
1da177e4 LT |
1983 | #endif |
1984 | if ( | |
1985 | #ifndef FIX_FILE_TRANSFER | |
48decc1c | 1986 | (info->port.flags & ASYNC_NORMAL_ACTIVE) && |
1da177e4 LT |
1987 | #endif |
1988 | (info->isdn_driver == -1) && | |
1989 | (info->isdn_channel == -1) && | |
1990 | (USG_NONE(dev->usage[idx]))) { | |
1991 | int matchret; | |
1992 | ||
1993 | if ((matchret = isdn_tty_match_icall(eaz, &info->emu, di)) > wret) | |
1994 | wret = matchret; | |
1995 | if (!matchret) { /* EAZ is matching */ | |
1996 | info->isdn_driver = di; | |
1997 | info->isdn_channel = ch; | |
1998 | info->drv_index = idx; | |
1999 | dev->m_idx[idx] = info->line; | |
2000 | dev->usage[idx] &= ISDN_USAGE_EXCLUSIVE; | |
475be4d8 | 2001 | dev->usage[idx] |= isdn_calc_usage(si1, info->emu.mdmreg[REG_L2PROT]); |
1da177e4 LT |
2002 | strcpy(dev->num[idx], nr); |
2003 | strcpy(info->emu.cpn, eaz); | |
2004 | info->emu.mdmreg[REG_SI1I] = si2bit[si1]; | |
2005 | info->emu.mdmreg[REG_PLAN] = setup->plan; | |
2006 | info->emu.mdmreg[REG_SCREEN] = setup->screen; | |
2007 | isdn_info_update(); | |
2008 | spin_unlock_irqrestore(&dev->lock, flags); | |
2009 | printk(KERN_INFO "isdn_tty: call from %s, -> RING on ttyI%d\n", nr, | |
2010 | info->line); | |
2011 | info->msr |= UART_MSR_RI; | |
2012 | isdn_tty_modem_result(RESULT_RING, info); | |
2013 | isdn_timer_ctrl(ISDN_TIMER_MODEMRING, 1); | |
2014 | return 1; | |
2015 | } | |
2016 | } | |
2017 | } | |
2018 | } | |
2019 | spin_unlock_irqrestore(&dev->lock, flags); | |
2020 | printk(KERN_INFO "isdn_tty: call from %s -> %s %s\n", nr, eaz, | |
475be4d8 JP |
2021 | ((dev->drv[di]->flags & DRV_FLAG_REJBUS) && (wret != 2)) ? "rejected" : "ignored"); |
2022 | return (wret == 2) ? 3 : 0; | |
1da177e4 LT |
2023 | } |
2024 | ||
48decc1c | 2025 | #define TTY_IS_ACTIVE(info) (info->port.flags & ASYNC_NORMAL_ACTIVE) |
1da177e4 LT |
2026 | |
2027 | int | |
2028 | isdn_tty_stat_callback(int i, isdn_ctrl *c) | |
2029 | { | |
2030 | int mi; | |
2031 | modem_info *info; | |
2032 | char *e; | |
2033 | ||
2034 | if (i < 0) | |
2035 | return 0; | |
2036 | if ((mi = dev->m_idx[i]) >= 0) { | |
2037 | info = &dev->mdm.info[mi]; | |
2038 | switch (c->command) { | |
475be4d8 JP |
2039 | case ISDN_STAT_CINF: |
2040 | printk(KERN_DEBUG "CHARGEINFO on ttyI%d: %ld %s\n", info->line, c->arg, c->parm.num); | |
2041 | info->emu.charge = (unsigned) simple_strtoul(c->parm.num, &e, 10); | |
2042 | if (e == (char *)c->parm.num) | |
2043 | info->emu.charge = 0; | |
2044 | ||
2045 | break; | |
2046 | case ISDN_STAT_BSENT: | |
1da177e4 | 2047 | #ifdef ISDN_TTY_STAT_DEBUG |
475be4d8 | 2048 | printk(KERN_DEBUG "tty_STAT_BSENT ttyI%d\n", info->line); |
1da177e4 | 2049 | #endif |
475be4d8 JP |
2050 | if ((info->isdn_driver == c->driver) && |
2051 | (info->isdn_channel == c->arg)) { | |
2052 | info->msr |= UART_MSR_CTS; | |
2053 | if (info->send_outstanding) | |
2054 | if (!(--info->send_outstanding)) | |
2055 | info->lsr |= UART_LSR_TEMT; | |
2056 | isdn_tty_tint(info); | |
1da177e4 | 2057 | return 1; |
475be4d8 JP |
2058 | } |
2059 | break; | |
2060 | case ISDN_STAT_CAUSE: | |
1da177e4 | 2061 | #ifdef ISDN_TTY_STAT_DEBUG |
475be4d8 JP |
2062 | printk(KERN_DEBUG "tty_STAT_CAUSE ttyI%d\n", info->line); |
2063 | #endif | |
2064 | /* Signal cause to tty-device */ | |
2065 | strncpy(info->last_cause, c->parm.num, 5); | |
2066 | return 1; | |
2067 | case ISDN_STAT_DISPLAY: | |
1da177e4 | 2068 | #ifdef ISDN_TTY_STAT_DEBUG |
475be4d8 | 2069 | printk(KERN_DEBUG "tty_STAT_DISPLAY ttyI%d\n", info->line); |
1da177e4 | 2070 | #endif |
475be4d8 JP |
2071 | /* Signal display to tty-device */ |
2072 | if ((info->emu.mdmreg[REG_DISPLAY] & BIT_DISPLAY) && | |
2073 | !(info->emu.mdmreg[REG_RESPNUM] & BIT_RESPNUM)) { | |
2074 | isdn_tty_at_cout("\r\n", info); | |
2075 | isdn_tty_at_cout("DISPLAY: ", info); | |
2076 | isdn_tty_at_cout(c->parm.display, info); | |
2077 | isdn_tty_at_cout("\r\n", info); | |
2078 | } | |
2079 | return 1; | |
2080 | case ISDN_STAT_DCONN: | |
2081 | #ifdef ISDN_TTY_STAT_DEBUG | |
2082 | printk(KERN_DEBUG "tty_STAT_DCONN ttyI%d\n", info->line); | |
2083 | #endif | |
2084 | if (TTY_IS_ACTIVE(info)) { | |
2085 | if (info->dialing == 1) { | |
2086 | info->dialing = 2; | |
2087 | return 1; | |
1da177e4 | 2088 | } |
475be4d8 JP |
2089 | } |
2090 | break; | |
2091 | case ISDN_STAT_DHUP: | |
1da177e4 | 2092 | #ifdef ISDN_TTY_STAT_DEBUG |
475be4d8 | 2093 | printk(KERN_DEBUG "tty_STAT_DHUP ttyI%d\n", info->line); |
1da177e4 | 2094 | #endif |
475be4d8 JP |
2095 | if (TTY_IS_ACTIVE(info)) { |
2096 | if (info->dialing == 1) | |
2097 | isdn_tty_modem_result(RESULT_BUSY, info); | |
2098 | if (info->dialing > 1) | |
2099 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
2100 | info->dialing = 0; | |
1da177e4 | 2101 | #ifdef ISDN_DEBUG_MODEM_HUP |
475be4d8 | 2102 | printk(KERN_DEBUG "Mhup in ISDN_STAT_DHUP\n"); |
1da177e4 | 2103 | #endif |
475be4d8 JP |
2104 | isdn_tty_modem_hup(info, 0); |
2105 | return 1; | |
2106 | } | |
2107 | break; | |
2108 | case ISDN_STAT_BCONN: | |
1da177e4 | 2109 | #ifdef ISDN_TTY_STAT_DEBUG |
475be4d8 JP |
2110 | printk(KERN_DEBUG "tty_STAT_BCONN ttyI%d\n", info->line); |
2111 | #endif | |
2112 | /* Wake up any processes waiting | |
2113 | * for incoming call of this device when | |
2114 | * DCD follow the state of incoming carrier | |
2115 | */ | |
1b05f030 | 2116 | if (info->port.blocked_open && |
475be4d8 | 2117 | (info->emu.mdmreg[REG_DCD] & BIT_DCD)) { |
c6e92b63 | 2118 | wake_up_interruptible(&info->port.open_wait); |
475be4d8 | 2119 | } |
1da177e4 | 2120 | |
475be4d8 JP |
2121 | /* Schedule CONNECT-Message to any tty |
2122 | * waiting for it and | |
2123 | * set DCD-bit of its modem-status. | |
2124 | */ | |
2125 | if (TTY_IS_ACTIVE(info) || | |
1b05f030 JS |
2126 | (info->port.blocked_open && |
2127 | (info->emu.mdmreg[REG_DCD] & BIT_DCD))) { | |
475be4d8 JP |
2128 | info->msr |= UART_MSR_DCD; |
2129 | info->emu.charge = 0; | |
2130 | if (info->dialing & 0xf) | |
2131 | info->last_dir = 1; | |
2132 | else | |
2133 | info->last_dir = 0; | |
2134 | info->dialing = 0; | |
2135 | info->rcvsched = 1; | |
2136 | if (USG_MODEM(dev->usage[i])) { | |
2137 | if (info->emu.mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM) { | |
2138 | strcpy(info->emu.connmsg, c->parm.num); | |
2139 | isdn_tty_modem_result(RESULT_CONNECT, info); | |
2140 | } else | |
2141 | isdn_tty_modem_result(RESULT_CONNECT64000, info); | |
1da177e4 | 2142 | } |
475be4d8 JP |
2143 | if (USG_VOICE(dev->usage[i])) |
2144 | isdn_tty_modem_result(RESULT_VCON, info); | |
2145 | return 1; | |
2146 | } | |
2147 | break; | |
2148 | case ISDN_STAT_BHUP: | |
1da177e4 | 2149 | #ifdef ISDN_TTY_STAT_DEBUG |
475be4d8 | 2150 | printk(KERN_DEBUG "tty_STAT_BHUP ttyI%d\n", info->line); |
1da177e4 | 2151 | #endif |
475be4d8 | 2152 | if (TTY_IS_ACTIVE(info)) { |
1da177e4 | 2153 | #ifdef ISDN_DEBUG_MODEM_HUP |
475be4d8 | 2154 | printk(KERN_DEBUG "Mhup in ISDN_STAT_BHUP\n"); |
1da177e4 | 2155 | #endif |
475be4d8 JP |
2156 | isdn_tty_modem_hup(info, 0); |
2157 | return 1; | |
2158 | } | |
2159 | break; | |
2160 | case ISDN_STAT_NODCH: | |
1da177e4 | 2161 | #ifdef ISDN_TTY_STAT_DEBUG |
475be4d8 JP |
2162 | printk(KERN_DEBUG "tty_STAT_NODCH ttyI%d\n", info->line); |
2163 | #endif | |
2164 | if (TTY_IS_ACTIVE(info)) { | |
2165 | if (info->dialing) { | |
2166 | info->dialing = 0; | |
2167 | info->last_l2 = -1; | |
2168 | info->last_si = 0; | |
2169 | sprintf(info->last_cause, "0000"); | |
2170 | isdn_tty_modem_result(RESULT_NO_DIALTONE, info); | |
1da177e4 | 2171 | } |
475be4d8 JP |
2172 | isdn_tty_modem_hup(info, 0); |
2173 | return 1; | |
2174 | } | |
2175 | break; | |
2176 | case ISDN_STAT_UNLOAD: | |
1da177e4 | 2177 | #ifdef ISDN_TTY_STAT_DEBUG |
475be4d8 | 2178 | printk(KERN_DEBUG "tty_STAT_UNLOAD ttyI%d\n", info->line); |
1da177e4 | 2179 | #endif |
475be4d8 JP |
2180 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { |
2181 | info = &dev->mdm.info[i]; | |
2182 | if (info->isdn_driver == c->driver) { | |
2183 | if (info->online) | |
2184 | isdn_tty_modem_hup(info, 1); | |
1da177e4 | 2185 | } |
475be4d8 JP |
2186 | } |
2187 | return 1; | |
1da177e4 | 2188 | #ifdef CONFIG_ISDN_TTY_FAX |
475be4d8 JP |
2189 | case ISDN_STAT_FAXIND: |
2190 | if (TTY_IS_ACTIVE(info)) { | |
2191 | isdn_tty_fax_command(info, c); | |
2192 | } | |
2193 | break; | |
1da177e4 LT |
2194 | #endif |
2195 | #ifdef CONFIG_ISDN_AUDIO | |
475be4d8 JP |
2196 | case ISDN_STAT_AUDIO: |
2197 | if (TTY_IS_ACTIVE(info)) { | |
2198 | switch (c->parm.num[0]) { | |
2199 | case ISDN_AUDIO_DTMF: | |
2200 | if (info->vonline) { | |
2201 | isdn_audio_put_dle_code(info, | |
1da177e4 | 2202 | c->parm.num[1]); |
1da177e4 | 2203 | } |
475be4d8 | 2204 | break; |
1da177e4 | 2205 | } |
475be4d8 JP |
2206 | } |
2207 | break; | |
1da177e4 LT |
2208 | #endif |
2209 | } | |
2210 | } | |
2211 | return 0; | |
2212 | } | |
2213 | ||
2214 | /********************************************************************* | |
2215 | Modem-Emulator-Routines | |
475be4d8 | 2216 | *********************************************************************/ |
1da177e4 | 2217 | |
475be4d8 | 2218 | #define cmdchar(c) ((c >= ' ') && (c <= 0x7f)) |
1da177e4 LT |
2219 | |
2220 | /* | |
2221 | * Put a message from the AT-emulator into receive-buffer of tty, | |
2222 | * convert CR, LF, and BS to values in modem-registers 3, 4 and 5. | |
2223 | */ | |
2224 | void | |
475be4d8 | 2225 | isdn_tty_at_cout(char *msg, modem_info *info) |
1da177e4 | 2226 | { |
227434f8 | 2227 | struct tty_port *port = &info->port; |
1da177e4 LT |
2228 | atemu *m = &info->emu; |
2229 | char *p; | |
2230 | char c; | |
2231 | u_long flags; | |
2232 | struct sk_buff *skb = NULL; | |
2233 | char *sp = NULL; | |
1f4d4a80 | 2234 | int l; |
1da177e4 LT |
2235 | |
2236 | if (!msg) { | |
2237 | printk(KERN_WARNING "isdn_tty: Null-Message in isdn_tty_at_cout\n"); | |
2238 | return; | |
2239 | } | |
1f4d4a80 AB |
2240 | |
2241 | l = strlen(msg); | |
2242 | ||
1da177e4 | 2243 | spin_lock_irqsave(&info->readlock, flags); |
2e124b4a | 2244 | if (port->flags & ASYNC_CLOSING) { |
1da177e4 LT |
2245 | spin_unlock_irqrestore(&info->readlock, flags); |
2246 | return; | |
2247 | } | |
2248 | ||
33f0f88f AC |
2249 | /* use queue instead of direct, if online and */ |
2250 | /* data is in queue or buffer is full */ | |
227434f8 | 2251 | if (info->online && ((tty_buffer_request_room(port, l) < l) || |
475be4d8 | 2252 | !skb_queue_empty(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel]))) { |
33f0f88f | 2253 | skb = alloc_skb(l, GFP_ATOMIC); |
1da177e4 LT |
2254 | if (!skb) { |
2255 | spin_unlock_irqrestore(&info->readlock, flags); | |
2256 | return; | |
2257 | } | |
33f0f88f | 2258 | sp = skb_put(skb, l); |
1da177e4 LT |
2259 | #ifdef CONFIG_ISDN_AUDIO |
2260 | ISDN_AUDIO_SKB_DLECOUNT(skb) = 0; | |
2261 | ISDN_AUDIO_SKB_LOCK(skb) = 0; | |
2262 | #endif | |
2263 | } | |
2264 | ||
2265 | for (p = msg; *p; p++) { | |
2266 | switch (*p) { | |
475be4d8 JP |
2267 | case '\r': |
2268 | c = m->mdmreg[REG_CR]; | |
2269 | break; | |
2270 | case '\n': | |
2271 | c = m->mdmreg[REG_LF]; | |
2272 | break; | |
2273 | case '\b': | |
2274 | c = m->mdmreg[REG_BS]; | |
2275 | break; | |
2276 | default: | |
2277 | c = *p; | |
1da177e4 LT |
2278 | } |
2279 | if (skb) { | |
2280 | *sp++ = c; | |
2281 | } else { | |
92a19f9c | 2282 | if (tty_insert_flip_char(port, c, TTY_NORMAL) == 0) |
1da177e4 | 2283 | break; |
1da177e4 LT |
2284 | } |
2285 | } | |
2286 | if (skb) { | |
2287 | __skb_queue_tail(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel], skb); | |
2288 | dev->drv[info->isdn_driver]->rcvcount[info->isdn_channel] += skb->len; | |
2289 | spin_unlock_irqrestore(&info->readlock, flags); | |
2290 | /* Schedule dequeuing */ | |
33f0f88f | 2291 | if (dev->modempoll && info->rcvsched) |
1da177e4 LT |
2292 | isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1); |
2293 | ||
2294 | } else { | |
2295 | spin_unlock_irqrestore(&info->readlock, flags); | |
2e124b4a | 2296 | tty_flip_buffer_push(port); |
1da177e4 LT |
2297 | } |
2298 | } | |
2299 | ||
2300 | /* | |
2301 | * Perform ATH Hangup | |
2302 | */ | |
2303 | static void | |
475be4d8 | 2304 | isdn_tty_on_hook(modem_info *info) |
1da177e4 LT |
2305 | { |
2306 | if (info->isdn_channel >= 0) { | |
2307 | #ifdef ISDN_DEBUG_MODEM_HUP | |
2308 | printk(KERN_DEBUG "Mhup in isdn_tty_on_hook\n"); | |
2309 | #endif | |
2310 | isdn_tty_modem_hup(info, 1); | |
2311 | } | |
2312 | } | |
2313 | ||
2314 | static void | |
2315 | isdn_tty_off_hook(void) | |
2316 | { | |
2317 | printk(KERN_DEBUG "isdn_tty_off_hook\n"); | |
2318 | } | |
2319 | ||
475be4d8 JP |
2320 | #define PLUSWAIT1 (HZ / 2) /* 0.5 sec. */ |
2321 | #define PLUSWAIT2 (HZ * 3 / 2) /* 1.5 sec */ | |
1da177e4 LT |
2322 | |
2323 | /* | |
2324 | * Check Buffer for Modem-escape-sequence, activate timer-callback to | |
2325 | * isdn_tty_modem_escape() if sequence found. | |
2326 | * | |
2327 | * Parameters: | |
2328 | * p pointer to databuffer | |
2329 | * plus escape-character | |
2330 | * count length of buffer | |
2331 | * pluscount count of valid escape-characters so far | |
2332 | * lastplus timestamp of last character | |
2333 | */ | |
2334 | static void | |
475be4d8 | 2335 | isdn_tty_check_esc(const u_char *p, u_char plus, int count, int *pluscount, |
1da177e4 LT |
2336 | u_long *lastplus) |
2337 | { | |
2338 | if (plus > 127) | |
2339 | return; | |
2340 | if (count > 3) { | |
2341 | p += count - 3; | |
2342 | count = 3; | |
2343 | *pluscount = 0; | |
2344 | } | |
2345 | while (count > 0) { | |
2346 | if (*(p++) == plus) { | |
2347 | if ((*pluscount)++) { | |
2348 | /* Time since last '+' > 0.5 sec. ? */ | |
2349 | if (time_after(jiffies, *lastplus + PLUSWAIT1)) | |
2350 | *pluscount = 1; | |
2351 | } else { | |
2352 | /* Time since last non-'+' < 1.5 sec. ? */ | |
2353 | if (time_before(jiffies, *lastplus + PLUSWAIT2)) | |
2354 | *pluscount = 0; | |
2355 | } | |
2356 | if ((*pluscount == 3) && (count == 1)) | |
2357 | isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS, 1); | |
2358 | if (*pluscount > 3) | |
2359 | *pluscount = 1; | |
2360 | } else | |
2361 | *pluscount = 0; | |
2362 | *lastplus = jiffies; | |
2363 | count--; | |
2364 | } | |
2365 | } | |
2366 | ||
2367 | /* | |
2368 | * Return result of AT-emulator to tty-receive-buffer, depending on | |
2369 | * modem-register 12, bit 0 and 1. | |
2370 | * For CONNECT-messages also switch to online-mode. | |
2371 | * For RING-message handle auto-ATA if register 0 != 0 | |
2372 | */ | |
2373 | ||
2374 | static void | |
475be4d8 | 2375 | isdn_tty_modem_result(int code, modem_info *info) |
1da177e4 LT |
2376 | { |
2377 | atemu *m = &info->emu; | |
2378 | static char *msg[] = | |
475be4d8 JP |
2379 | {"OK", "CONNECT", "RING", "NO CARRIER", "ERROR", |
2380 | "CONNECT 64000", "NO DIALTONE", "BUSY", "NO ANSWER", | |
2381 | "RINGING", "NO MSN/EAZ", "VCON", "RUNG"}; | |
2382 | char s[ISDN_MSNLEN + 10]; | |
1da177e4 LT |
2383 | |
2384 | switch (code) { | |
475be4d8 JP |
2385 | case RESULT_RING: |
2386 | m->mdmreg[REG_RINGCNT]++; | |
2387 | if (m->mdmreg[REG_RINGCNT] == m->mdmreg[REG_RINGATA]) | |
2388 | /* Automatically accept incoming call */ | |
2389 | isdn_tty_cmd_ATA(info); | |
2390 | break; | |
2391 | case RESULT_NO_CARRIER: | |
1da177e4 | 2392 | #ifdef ISDN_DEBUG_MODEM_HUP |
475be4d8 | 2393 | printk(KERN_DEBUG "modem_result: NO CARRIER %d %d\n", |
48decc1c | 2394 | (info->port.flags & ASYNC_CLOSING), |
ba43294d | 2395 | (!info->port.tty)); |
475be4d8 JP |
2396 | #endif |
2397 | m->mdmreg[REG_RINGCNT] = 0; | |
2398 | del_timer(&info->nc_timer); | |
2399 | info->ncarrier = 0; | |
ba43294d | 2400 | if ((info->port.flags & ASYNC_CLOSING) || (!info->port.tty)) |
475be4d8 | 2401 | return; |
6776a2f0 | 2402 | |
1da177e4 | 2403 | #ifdef CONFIG_ISDN_AUDIO |
475be4d8 | 2404 | if (info->vonline & 1) { |
1da177e4 | 2405 | #ifdef ISDN_DEBUG_MODEM_VOICE |
475be4d8 JP |
2406 | printk(KERN_DEBUG "res3: send DLE-ETX on ttyI%d\n", |
2407 | info->line); | |
1da177e4 | 2408 | #endif |
475be4d8 JP |
2409 | /* voice-recording, add DLE-ETX */ |
2410 | isdn_tty_at_cout("\020\003", info); | |
2411 | } | |
2412 | if (info->vonline & 2) { | |
1da177e4 | 2413 | #ifdef ISDN_DEBUG_MODEM_VOICE |
475be4d8 JP |
2414 | printk(KERN_DEBUG "res3: send DLE-DC4 on ttyI%d\n", |
2415 | info->line); | |
1da177e4 | 2416 | #endif |
475be4d8 JP |
2417 | /* voice-playing, add DLE-DC4 */ |
2418 | isdn_tty_at_cout("\020\024", info); | |
2419 | } | |
1da177e4 | 2420 | #endif |
475be4d8 JP |
2421 | break; |
2422 | case RESULT_CONNECT: | |
2423 | case RESULT_CONNECT64000: | |
2424 | sprintf(info->last_cause, "0000"); | |
2425 | if (!info->online) | |
2426 | info->online = 2; | |
2427 | break; | |
2428 | case RESULT_VCON: | |
1da177e4 | 2429 | #ifdef ISDN_DEBUG_MODEM_VOICE |
475be4d8 JP |
2430 | printk(KERN_DEBUG "res3: send VCON on ttyI%d\n", |
2431 | info->line); | |
1da177e4 | 2432 | #endif |
475be4d8 JP |
2433 | sprintf(info->last_cause, "0000"); |
2434 | if (!info->online) | |
2435 | info->online = 1; | |
2436 | break; | |
2437 | } /* switch (code) */ | |
1da177e4 LT |
2438 | |
2439 | if (m->mdmreg[REG_RESP] & BIT_RESP) { | |
2440 | /* Show results */ | |
2441 | if (m->mdmreg[REG_RESPNUM] & BIT_RESPNUM) { | |
2442 | /* Show numeric results only */ | |
2443 | sprintf(s, "\r\n%d\r\n", code); | |
2444 | isdn_tty_at_cout(s, info); | |
2445 | } else { | |
2446 | if (code == RESULT_RING) { | |
475be4d8 JP |
2447 | /* return if "show RUNG" and ringcounter>1 */ |
2448 | if ((m->mdmreg[REG_RUNG] & BIT_RUNG) && | |
1da177e4 | 2449 | (m->mdmreg[REG_RINGCNT] > 1)) |
475be4d8 JP |
2450 | return; |
2451 | /* print CID, _before_ _every_ ring */ | |
2452 | if (!(m->mdmreg[REG_CIDONCE] & BIT_CIDONCE)) { | |
2453 | isdn_tty_at_cout("\r\nCALLER NUMBER: ", info); | |
2454 | isdn_tty_at_cout(dev->num[info->drv_index], info); | |
2455 | if (m->mdmreg[REG_CDN] & BIT_CDN) { | |
2456 | isdn_tty_at_cout("\r\nCALLED NUMBER: ", info); | |
2457 | isdn_tty_at_cout(info->emu.cpn, info); | |
2458 | } | |
2459 | } | |
1da177e4 LT |
2460 | } |
2461 | isdn_tty_at_cout("\r\n", info); | |
2462 | isdn_tty_at_cout(msg[code], info); | |
2463 | switch (code) { | |
475be4d8 JP |
2464 | case RESULT_CONNECT: |
2465 | switch (m->mdmreg[REG_L2PROT]) { | |
2466 | case ISDN_PROTO_L2_MODEM: | |
2467 | isdn_tty_at_cout(" ", info); | |
2468 | isdn_tty_at_cout(m->connmsg, info); | |
1da177e4 | 2469 | break; |
475be4d8 JP |
2470 | } |
2471 | break; | |
2472 | case RESULT_RING: | |
2473 | /* Append CPN, if enabled */ | |
2474 | if ((m->mdmreg[REG_CPN] & BIT_CPN)) { | |
2475 | sprintf(s, "/%s", m->cpn); | |
2476 | isdn_tty_at_cout(s, info); | |
2477 | } | |
2478 | /* Print CID only once, _after_ 1st RING */ | |
2479 | if ((m->mdmreg[REG_CIDONCE] & BIT_CIDONCE) && | |
2480 | (m->mdmreg[REG_RINGCNT] == 1)) { | |
2481 | isdn_tty_at_cout("\r\n", info); | |
2482 | isdn_tty_at_cout("CALLER NUMBER: ", info); | |
2483 | isdn_tty_at_cout(dev->num[info->drv_index], info); | |
2484 | if (m->mdmreg[REG_CDN] & BIT_CDN) { | |
2485 | isdn_tty_at_cout("\r\nCALLED NUMBER: ", info); | |
2486 | isdn_tty_at_cout(info->emu.cpn, info); | |
1da177e4 | 2487 | } |
475be4d8 JP |
2488 | } |
2489 | break; | |
2490 | case RESULT_NO_CARRIER: | |
2491 | case RESULT_NO_DIALTONE: | |
2492 | case RESULT_BUSY: | |
2493 | case RESULT_NO_ANSWER: | |
2494 | m->mdmreg[REG_RINGCNT] = 0; | |
2495 | /* Append Cause-Message if enabled */ | |
2496 | if (m->mdmreg[REG_RESPXT] & BIT_RESPXT) { | |
2497 | sprintf(s, "/%s", info->last_cause); | |
2498 | isdn_tty_at_cout(s, info); | |
2499 | } | |
2500 | break; | |
2501 | case RESULT_CONNECT64000: | |
2502 | /* Append Protocol to CONNECT message */ | |
2503 | switch (m->mdmreg[REG_L2PROT]) { | |
2504 | case ISDN_PROTO_L2_X75I: | |
2505 | case ISDN_PROTO_L2_X75UI: | |
2506 | case ISDN_PROTO_L2_X75BUI: | |
2507 | isdn_tty_at_cout("/X.75", info); | |
1da177e4 | 2508 | break; |
475be4d8 JP |
2509 | case ISDN_PROTO_L2_HDLC: |
2510 | isdn_tty_at_cout("/HDLC", info); | |
1da177e4 | 2511 | break; |
475be4d8 JP |
2512 | case ISDN_PROTO_L2_V11096: |
2513 | isdn_tty_at_cout("/V110/9600", info); | |
2514 | break; | |
2515 | case ISDN_PROTO_L2_V11019: | |
2516 | isdn_tty_at_cout("/V110/19200", info); | |
2517 | break; | |
2518 | case ISDN_PROTO_L2_V11038: | |
2519 | isdn_tty_at_cout("/V110/38400", info); | |
1da177e4 | 2520 | break; |
475be4d8 JP |
2521 | } |
2522 | if (m->mdmreg[REG_T70] & BIT_T70) { | |
2523 | isdn_tty_at_cout("/T.70", info); | |
2524 | if (m->mdmreg[REG_T70] & BIT_T70_EXT) | |
2525 | isdn_tty_at_cout("+", info); | |
2526 | } | |
2527 | break; | |
1da177e4 LT |
2528 | } |
2529 | isdn_tty_at_cout("\r\n", info); | |
2530 | } | |
2531 | } | |
2532 | if (code == RESULT_NO_CARRIER) { | |
ba43294d | 2533 | if ((info->port.flags & ASYNC_CLOSING) || (!info->port.tty)) |
1da177e4 | 2534 | return; |
6776a2f0 | 2535 | |
48decc1c | 2536 | if (info->port.flags & ASYNC_CHECK_CD) |
ba43294d | 2537 | tty_hangup(info->port.tty); |
1da177e4 LT |
2538 | } |
2539 | } | |
2540 | ||
2541 | ||
2542 | /* | |
2543 | * Display a modem-register-value. | |
2544 | */ | |
2545 | static void | |
475be4d8 | 2546 | isdn_tty_show_profile(int ridx, modem_info *info) |
1da177e4 LT |
2547 | { |
2548 | char v[6]; | |
2549 | ||
2550 | sprintf(v, "\r\n%d", info->emu.mdmreg[ridx]); | |
2551 | isdn_tty_at_cout(v, info); | |
2552 | } | |
2553 | ||
2554 | /* | |
2555 | * Get MSN-string from char-pointer, set pointer to end of number | |
2556 | */ | |
2557 | static void | |
2558 | isdn_tty_get_msnstr(char *n, char **p) | |
2559 | { | |
2560 | int limit = ISDN_MSNLEN - 1; | |
2561 | ||
2562 | while (((*p[0] >= '0' && *p[0] <= '9') || | |
2563 | /* Why a comma ??? */ | |
2564 | (*p[0] == ',') || (*p[0] == ':')) && | |
475be4d8 | 2565 | (limit--)) |
1da177e4 LT |
2566 | *n++ = *p[0]++; |
2567 | *n = '\0'; | |
2568 | } | |
2569 | ||
2570 | /* | |
2571 | * Get phone-number from modem-commandbuffer | |
2572 | */ | |
2573 | static void | |
475be4d8 | 2574 | isdn_tty_getdial(char *p, char *q, int cnt) |
1da177e4 LT |
2575 | { |
2576 | int first = 1; | |
2577 | int limit = ISDN_MSNLEN - 1; /* MUST match the size of interface var to avoid | |
475be4d8 | 2578 | buffer overflow */ |
1da177e4 | 2579 | |
475be4d8 | 2580 | while (strchr(" 0123456789,#.*WPTSR-", *p) && *p && --cnt > 0) { |
1da177e4 | 2581 | if ((*p >= '0' && *p <= '9') || ((*p == 'S') && first) || |
924ad158 | 2582 | ((*p == 'R') && first) || |
1da177e4 LT |
2583 | (*p == '*') || (*p == '#')) { |
2584 | *q++ = *p; | |
2585 | limit--; | |
2586 | } | |
475be4d8 | 2587 | if (!limit) |
1da177e4 LT |
2588 | break; |
2589 | p++; | |
2590 | first = 0; | |
2591 | } | |
2592 | *q = 0; | |
2593 | } | |
2594 | ||
2595 | #define PARSE_ERROR { isdn_tty_modem_result(RESULT_ERROR, info); return; } | |
2596 | #define PARSE_ERROR1 { isdn_tty_modem_result(RESULT_ERROR, info); return 1; } | |
2597 | ||
2598 | static void | |
475be4d8 | 2599 | isdn_tty_report(modem_info *info) |
1da177e4 LT |
2600 | { |
2601 | atemu *m = &info->emu; | |
2602 | char s[80]; | |
2603 | ||
2604 | isdn_tty_at_cout("\r\nStatistics of last connection:\r\n\r\n", info); | |
2605 | sprintf(s, " Remote Number: %s\r\n", info->last_num); | |
2606 | isdn_tty_at_cout(s, info); | |
2607 | sprintf(s, " Direction: %s\r\n", info->last_dir ? "outgoing" : "incoming"); | |
2608 | isdn_tty_at_cout(s, info); | |
2609 | isdn_tty_at_cout(" Layer-2 Protocol: ", info); | |
2610 | switch (info->last_l2) { | |
475be4d8 JP |
2611 | case ISDN_PROTO_L2_X75I: |
2612 | isdn_tty_at_cout("X.75i", info); | |
2613 | break; | |
2614 | case ISDN_PROTO_L2_X75UI: | |
2615 | isdn_tty_at_cout("X.75ui", info); | |
2616 | break; | |
2617 | case ISDN_PROTO_L2_X75BUI: | |
2618 | isdn_tty_at_cout("X.75bui", info); | |
2619 | break; | |
2620 | case ISDN_PROTO_L2_HDLC: | |
2621 | isdn_tty_at_cout("HDLC", info); | |
2622 | break; | |
2623 | case ISDN_PROTO_L2_V11096: | |
2624 | isdn_tty_at_cout("V.110 9600 Baud", info); | |
2625 | break; | |
2626 | case ISDN_PROTO_L2_V11019: | |
2627 | isdn_tty_at_cout("V.110 19200 Baud", info); | |
2628 | break; | |
2629 | case ISDN_PROTO_L2_V11038: | |
2630 | isdn_tty_at_cout("V.110 38400 Baud", info); | |
2631 | break; | |
2632 | case ISDN_PROTO_L2_TRANS: | |
2633 | isdn_tty_at_cout("transparent", info); | |
2634 | break; | |
2635 | case ISDN_PROTO_L2_MODEM: | |
2636 | isdn_tty_at_cout("modem", info); | |
2637 | break; | |
2638 | case ISDN_PROTO_L2_FAX: | |
2639 | isdn_tty_at_cout("fax", info); | |
2640 | break; | |
2641 | default: | |
2642 | isdn_tty_at_cout("unknown", info); | |
2643 | break; | |
1da177e4 LT |
2644 | } |
2645 | if (m->mdmreg[REG_T70] & BIT_T70) { | |
2646 | isdn_tty_at_cout("/T.70", info); | |
2647 | if (m->mdmreg[REG_T70] & BIT_T70_EXT) | |
2648 | isdn_tty_at_cout("+", info); | |
2649 | } | |
2650 | isdn_tty_at_cout("\r\n", info); | |
2651 | isdn_tty_at_cout(" Service: ", info); | |
2652 | switch (info->last_si) { | |
475be4d8 JP |
2653 | case 1: |
2654 | isdn_tty_at_cout("audio\r\n", info); | |
2655 | break; | |
2656 | case 5: | |
2657 | isdn_tty_at_cout("btx\r\n", info); | |
2658 | break; | |
2659 | case 7: | |
2660 | isdn_tty_at_cout("data\r\n", info); | |
2661 | break; | |
2662 | default: | |
2663 | sprintf(s, "%d\r\n", info->last_si); | |
2664 | isdn_tty_at_cout(s, info); | |
2665 | break; | |
1da177e4 LT |
2666 | } |
2667 | sprintf(s, " Hangup location: %s\r\n", info->last_lhup ? "local" : "remote"); | |
2668 | isdn_tty_at_cout(s, info); | |
2669 | sprintf(s, " Last cause: %s\r\n", info->last_cause); | |
2670 | isdn_tty_at_cout(s, info); | |
2671 | } | |
2672 | ||
2673 | /* | |
2674 | * Parse AT&.. commands. | |
2675 | */ | |
2676 | static int | |
475be4d8 | 2677 | isdn_tty_cmd_ATand(char **p, modem_info *info) |
1da177e4 LT |
2678 | { |
2679 | atemu *m = &info->emu; | |
2680 | int i; | |
2681 | char rb[100]; | |
2682 | ||
2683 | #define MAXRB (sizeof(rb) - 1) | |
2684 | ||
2685 | switch (*p[0]) { | |
475be4d8 JP |
2686 | case 'B': |
2687 | /* &B - Set Buffersize */ | |
2688 | p[0]++; | |
2689 | i = isdn_getnum(p); | |
2690 | if ((i < 0) || (i > ISDN_SERIAL_XMIT_MAX)) | |
2691 | PARSE_ERROR1; | |
1da177e4 | 2692 | #ifdef CONFIG_ISDN_AUDIO |
475be4d8 JP |
2693 | if ((m->mdmreg[REG_SI1] & 1) && (i > VBUF)) |
2694 | PARSE_ERROR1; | |
1da177e4 | 2695 | #endif |
475be4d8 JP |
2696 | m->mdmreg[REG_PSIZE] = i / 16; |
2697 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16; | |
2698 | switch (m->mdmreg[REG_L2PROT]) { | |
2699 | case ISDN_PROTO_L2_V11096: | |
2700 | case ISDN_PROTO_L2_V11019: | |
2701 | case ISDN_PROTO_L2_V11038: | |
2702 | info->xmit_size /= 10; | |
2703 | } | |
2704 | break; | |
2705 | case 'C': | |
2706 | /* &C - DCD Status */ | |
2707 | p[0]++; | |
2708 | switch (isdn_getnum(p)) { | |
2709 | case 0: | |
2710 | m->mdmreg[REG_DCD] &= ~BIT_DCD; | |
1da177e4 | 2711 | break; |
475be4d8 JP |
2712 | case 1: |
2713 | m->mdmreg[REG_DCD] |= BIT_DCD; | |
1da177e4 | 2714 | break; |
475be4d8 JP |
2715 | default: |
2716 | PARSE_ERROR1 | |
2717 | } | |
2718 | break; | |
2719 | case 'D': | |
2720 | /* &D - Set DTR-Low-behavior */ | |
2721 | p[0]++; | |
2722 | switch (isdn_getnum(p)) { | |
2723 | case 0: | |
2724 | m->mdmreg[REG_DTRHUP] &= ~BIT_DTRHUP; | |
2725 | m->mdmreg[REG_DTRR] &= ~BIT_DTRR; | |
1da177e4 | 2726 | break; |
475be4d8 JP |
2727 | case 2: |
2728 | m->mdmreg[REG_DTRHUP] |= BIT_DTRHUP; | |
2729 | m->mdmreg[REG_DTRR] &= ~BIT_DTRR; | |
2730 | break; | |
2731 | case 3: | |
2732 | m->mdmreg[REG_DTRHUP] |= BIT_DTRHUP; | |
2733 | m->mdmreg[REG_DTRR] |= BIT_DTRR; | |
1da177e4 | 2734 | break; |
475be4d8 JP |
2735 | default: |
2736 | PARSE_ERROR1 | |
2737 | } | |
2738 | break; | |
2739 | case 'E': | |
2740 | /* &E -Set EAZ/MSN */ | |
2741 | p[0]++; | |
2742 | isdn_tty_get_msnstr(m->msn, p); | |
2743 | break; | |
2744 | case 'F': | |
2745 | /* &F -Set Factory-Defaults */ | |
2746 | p[0]++; | |
2747 | if (info->msr & UART_MSR_DCD) | |
2748 | PARSE_ERROR1; | |
2749 | isdn_tty_reset_profile(m); | |
2750 | isdn_tty_modem_reset_regs(info, 1); | |
2751 | break; | |
1da177e4 | 2752 | #ifdef DUMMY_HAYES_AT |
475be4d8 JP |
2753 | case 'K': |
2754 | /* only for be compilant with common scripts */ | |
2755 | /* &K Flowcontrol - no function */ | |
2756 | p[0]++; | |
2757 | isdn_getnum(p); | |
2758 | break; | |
2759 | #endif | |
2760 | case 'L': | |
2761 | /* &L -Set Numbers to listen on */ | |
2762 | p[0]++; | |
2763 | i = 0; | |
2764 | while (*p[0] && (strchr("0123456789,-*[]?;", *p[0])) && | |
2765 | (i < ISDN_LMSNLEN - 1)) | |
2766 | m->lmsn[i++] = *p[0]++; | |
2767 | m->lmsn[i] = '\0'; | |
2768 | break; | |
2769 | case 'R': | |
2770 | /* &R - Set V.110 bitrate adaption */ | |
2771 | p[0]++; | |
2772 | i = isdn_getnum(p); | |
2773 | switch (i) { | |
2774 | case 0: | |
2775 | /* Switch off V.110, back to X.75 */ | |
2776 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; | |
2777 | m->mdmreg[REG_SI2] = 0; | |
2778 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16; | |
1da177e4 | 2779 | break; |
475be4d8 JP |
2780 | case 9600: |
2781 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11096; | |
2782 | m->mdmreg[REG_SI2] = 197; | |
2783 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10; | |
1da177e4 | 2784 | break; |
475be4d8 JP |
2785 | case 19200: |
2786 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11019; | |
2787 | m->mdmreg[REG_SI2] = 199; | |
2788 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10; | |
1da177e4 | 2789 | break; |
475be4d8 JP |
2790 | case 38400: |
2791 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11038; | |
2792 | m->mdmreg[REG_SI2] = 198; /* no existing standard for this */ | |
2793 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10; | |
1da177e4 | 2794 | break; |
475be4d8 JP |
2795 | default: |
2796 | PARSE_ERROR1; | |
2797 | } | |
2798 | /* Switch off T.70 */ | |
2799 | m->mdmreg[REG_T70] &= ~(BIT_T70 | BIT_T70_EXT); | |
2800 | /* Set Service 7 */ | |
2801 | m->mdmreg[REG_SI1] |= 4; | |
2802 | break; | |
2803 | case 'S': | |
2804 | /* &S - Set Windowsize */ | |
2805 | p[0]++; | |
2806 | i = isdn_getnum(p); | |
2807 | if ((i > 0) && (i < 9)) | |
2808 | m->mdmreg[REG_WSIZE] = i; | |
2809 | else | |
2810 | PARSE_ERROR1; | |
2811 | break; | |
2812 | case 'V': | |
2813 | /* &V - Show registers */ | |
2814 | p[0]++; | |
2815 | isdn_tty_at_cout("\r\n", info); | |
2816 | for (i = 0; i < ISDN_MODEM_NUMREG; i++) { | |
2817 | sprintf(rb, "S%02d=%03d%s", i, | |
2818 | m->mdmreg[i], ((i + 1) % 10) ? " " : "\r\n"); | |
2819 | isdn_tty_at_cout(rb, info); | |
2820 | } | |
2821 | sprintf(rb, "\r\nEAZ/MSN: %.50s\r\n", | |
2822 | strlen(m->msn) ? m->msn : "None"); | |
2823 | isdn_tty_at_cout(rb, info); | |
2824 | if (strlen(m->lmsn)) { | |
2825 | isdn_tty_at_cout("\r\nListen: ", info); | |
2826 | isdn_tty_at_cout(m->lmsn, info); | |
2827 | isdn_tty_at_cout("\r\n", info); | |
2828 | } | |
2829 | break; | |
2830 | case 'W': | |
2831 | /* &W - Write Profile */ | |
2832 | p[0]++; | |
2833 | switch (*p[0]) { | |
2834 | case '0': | |
1da177e4 | 2835 | p[0]++; |
475be4d8 | 2836 | modem_write_profile(m); |
1da177e4 | 2837 | break; |
475be4d8 JP |
2838 | default: |
2839 | PARSE_ERROR1; | |
2840 | } | |
2841 | break; | |
2842 | case 'X': | |
2843 | /* &X - Switch to BTX-Mode and T.70 */ | |
2844 | p[0]++; | |
2845 | switch (isdn_getnum(p)) { | |
2846 | case 0: | |
2847 | m->mdmreg[REG_T70] &= ~(BIT_T70 | BIT_T70_EXT); | |
2848 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16; | |
2849 | break; | |
2850 | case 1: | |
2851 | m->mdmreg[REG_T70] |= BIT_T70; | |
2852 | m->mdmreg[REG_T70] &= ~BIT_T70_EXT; | |
2853 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; | |
2854 | info->xmit_size = 112; | |
2855 | m->mdmreg[REG_SI1] = 4; | |
2856 | m->mdmreg[REG_SI2] = 0; | |
2857 | break; | |
2858 | case 2: | |
2859 | m->mdmreg[REG_T70] |= (BIT_T70 | BIT_T70_EXT); | |
2860 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; | |
2861 | info->xmit_size = 112; | |
2862 | m->mdmreg[REG_SI1] = 4; | |
2863 | m->mdmreg[REG_SI2] = 0; | |
1da177e4 LT |
2864 | break; |
2865 | default: | |
2866 | PARSE_ERROR1; | |
475be4d8 JP |
2867 | } |
2868 | break; | |
2869 | default: | |
2870 | PARSE_ERROR1; | |
1da177e4 LT |
2871 | } |
2872 | return 0; | |
2873 | } | |
2874 | ||
2875 | static int | |
475be4d8 | 2876 | isdn_tty_check_ats(int mreg, int mval, modem_info *info, atemu *m) |
1da177e4 LT |
2877 | { |
2878 | /* Some plausibility checks */ | |
2879 | switch (mreg) { | |
475be4d8 JP |
2880 | case REG_L2PROT: |
2881 | if (mval > ISDN_PROTO_L2_MAX) | |
2882 | return 1; | |
2883 | break; | |
2884 | case REG_PSIZE: | |
2885 | if ((mval * 16) > ISDN_SERIAL_XMIT_MAX) | |
2886 | return 1; | |
1da177e4 | 2887 | #ifdef CONFIG_ISDN_AUDIO |
475be4d8 | 2888 | if ((m->mdmreg[REG_SI1] & 1) && (mval > VBUFX)) |
1da177e4 | 2889 | return 1; |
475be4d8 JP |
2890 | #endif |
2891 | info->xmit_size = mval * 16; | |
2892 | switch (m->mdmreg[REG_L2PROT]) { | |
2893 | case ISDN_PROTO_L2_V11096: | |
2894 | case ISDN_PROTO_L2_V11019: | |
2895 | case ISDN_PROTO_L2_V11038: | |
2896 | info->xmit_size /= 10; | |
2897 | } | |
2898 | break; | |
2899 | case REG_SI1I: | |
2900 | case REG_PLAN: | |
2901 | case REG_SCREEN: | |
2902 | /* readonly registers */ | |
2903 | return 1; | |
1da177e4 LT |
2904 | } |
2905 | return 0; | |
2906 | } | |
2907 | ||
2908 | /* | |
2909 | * Perform ATS command | |
2910 | */ | |
2911 | static int | |
475be4d8 | 2912 | isdn_tty_cmd_ATS(char **p, modem_info *info) |
1da177e4 LT |
2913 | { |
2914 | atemu *m = &info->emu; | |
2915 | int bitpos; | |
2916 | int mreg; | |
2917 | int mval; | |
2918 | int bval; | |
2919 | ||
2920 | mreg = isdn_getnum(p); | |
2921 | if (mreg < 0 || mreg >= ISDN_MODEM_NUMREG) | |
2922 | PARSE_ERROR1; | |
2923 | switch (*p[0]) { | |
475be4d8 JP |
2924 | case '=': |
2925 | p[0]++; | |
2926 | mval = isdn_getnum(p); | |
2927 | if (mval < 0 || mval > 255) | |
2928 | PARSE_ERROR1; | |
2929 | if (isdn_tty_check_ats(mreg, mval, info, m)) | |
2930 | PARSE_ERROR1; | |
2931 | m->mdmreg[mreg] = mval; | |
2932 | break; | |
2933 | case '.': | |
2934 | /* Set/Clear a single bit */ | |
2935 | p[0]++; | |
2936 | bitpos = isdn_getnum(p); | |
2937 | if ((bitpos < 0) || (bitpos > 7)) | |
2938 | PARSE_ERROR1; | |
2939 | switch (*p[0]) { | |
1da177e4 LT |
2940 | case '=': |
2941 | p[0]++; | |
475be4d8 JP |
2942 | bval = isdn_getnum(p); |
2943 | if (bval < 0 || bval > 1) | |
1da177e4 | 2944 | PARSE_ERROR1; |
475be4d8 JP |
2945 | if (bval) |
2946 | mval = m->mdmreg[mreg] | (1 << bitpos); | |
2947 | else | |
2948 | mval = m->mdmreg[mreg] & ~(1 << bitpos); | |
1da177e4 LT |
2949 | if (isdn_tty_check_ats(mreg, mval, info, m)) |
2950 | PARSE_ERROR1; | |
2951 | m->mdmreg[mreg] = mval; | |
2952 | break; | |
1da177e4 LT |
2953 | case '?': |
2954 | p[0]++; | |
475be4d8 JP |
2955 | isdn_tty_at_cout("\r\n", info); |
2956 | isdn_tty_at_cout((m->mdmreg[mreg] & (1 << bitpos)) ? "1" : "0", | |
2957 | info); | |
1da177e4 LT |
2958 | break; |
2959 | default: | |
2960 | PARSE_ERROR1; | |
475be4d8 JP |
2961 | } |
2962 | break; | |
2963 | case '?': | |
2964 | p[0]++; | |
2965 | isdn_tty_show_profile(mreg, info); | |
2966 | break; | |
2967 | default: | |
2968 | PARSE_ERROR1; | |
2969 | break; | |
1da177e4 LT |
2970 | } |
2971 | return 0; | |
2972 | } | |
2973 | ||
2974 | /* | |
2975 | * Perform ATA command | |
2976 | */ | |
2977 | static void | |
475be4d8 | 2978 | isdn_tty_cmd_ATA(modem_info *info) |
1da177e4 LT |
2979 | { |
2980 | atemu *m = &info->emu; | |
2981 | isdn_ctrl cmd; | |
2982 | int l2; | |
2983 | ||
2984 | if (info->msr & UART_MSR_RI) { | |
2985 | /* Accept incoming call */ | |
2986 | info->last_dir = 0; | |
2987 | strcpy(info->last_num, dev->num[info->drv_index]); | |
2988 | m->mdmreg[REG_RINGCNT] = 0; | |
2989 | info->msr &= ~UART_MSR_RI; | |
2990 | l2 = m->mdmreg[REG_L2PROT]; | |
2991 | #ifdef CONFIG_ISDN_AUDIO | |
2992 | /* If more than one bit set in reg18, autoselect Layer2 */ | |
2993 | if ((m->mdmreg[REG_SI1] & m->mdmreg[REG_SI1I]) != m->mdmreg[REG_SI1]) { | |
2994 | if (m->mdmreg[REG_SI1I] == 1) { | |
2995 | if ((l2 != ISDN_PROTO_L2_MODEM) && (l2 != ISDN_PROTO_L2_FAX)) | |
2996 | l2 = ISDN_PROTO_L2_TRANS; | |
2997 | } else | |
2998 | l2 = ISDN_PROTO_L2_X75I; | |
2999 | } | |
3000 | #endif | |
3001 | cmd.driver = info->isdn_driver; | |
3002 | cmd.command = ISDN_CMD_SETL2; | |
3003 | cmd.arg = info->isdn_channel + (l2 << 8); | |
3004 | info->last_l2 = l2; | |
3005 | isdn_command(&cmd); | |
3006 | cmd.driver = info->isdn_driver; | |
3007 | cmd.command = ISDN_CMD_SETL3; | |
3008 | cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); | |
3009 | #ifdef CONFIG_ISDN_TTY_FAX | |
3010 | if (l2 == ISDN_PROTO_L2_FAX) { | |
3011 | cmd.parm.fax = info->fax; | |
3012 | info->fax->direction = ISDN_TTY_FAX_CONN_IN; | |
3013 | } | |
3014 | #endif | |
3015 | isdn_command(&cmd); | |
3016 | cmd.driver = info->isdn_driver; | |
3017 | cmd.arg = info->isdn_channel; | |
3018 | cmd.command = ISDN_CMD_ACCEPTD; | |
3019 | info->dialing = 16; | |
3020 | info->emu.carrierwait = 0; | |
3021 | isdn_command(&cmd); | |
3022 | isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1); | |
3023 | } else | |
3024 | isdn_tty_modem_result(RESULT_NO_ANSWER, info); | |
3025 | } | |
3026 | ||
3027 | #ifdef CONFIG_ISDN_AUDIO | |
3028 | /* | |
3029 | * Parse AT+F.. commands | |
3030 | */ | |
3031 | static int | |
475be4d8 | 3032 | isdn_tty_cmd_PLUSF(char **p, modem_info *info) |
1da177e4 LT |
3033 | { |
3034 | atemu *m = &info->emu; | |
3035 | char rs[20]; | |
3036 | ||
3037 | if (!strncmp(p[0], "CLASS", 5)) { | |
3038 | p[0] += 5; | |
3039 | switch (*p[0]) { | |
475be4d8 JP |
3040 | case '?': |
3041 | p[0]++; | |
3042 | sprintf(rs, "\r\n%d", | |
3043 | (m->mdmreg[REG_SI1] & 1) ? 8 : 0); | |
1da177e4 | 3044 | #ifdef CONFIG_ISDN_TTY_FAX |
475be4d8 JP |
3045 | if (TTY_IS_FCLASS2(info)) |
3046 | sprintf(rs, "\r\n2"); | |
3047 | else if (TTY_IS_FCLASS1(info)) | |
3048 | sprintf(rs, "\r\n1"); | |
1da177e4 | 3049 | #endif |
475be4d8 JP |
3050 | isdn_tty_at_cout(rs, info); |
3051 | break; | |
3052 | case '=': | |
3053 | p[0]++; | |
3054 | switch (*p[0]) { | |
3055 | case '0': | |
1da177e4 | 3056 | p[0]++; |
475be4d8 JP |
3057 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; |
3058 | m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_TRANS; | |
3059 | m->mdmreg[REG_SI1] = 4; | |
3060 | info->xmit_size = | |
3061 | m->mdmreg[REG_PSIZE] * 16; | |
3062 | break; | |
1da177e4 | 3063 | #ifdef CONFIG_ISDN_TTY_FAX |
475be4d8 JP |
3064 | case '1': |
3065 | p[0]++; | |
3066 | if (!(dev->global_features & | |
3067 | ISDN_FEATURE_L3_FCLASS1)) | |
3068 | PARSE_ERROR1; | |
3069 | m->mdmreg[REG_SI1] = 1; | |
3070 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_FAX; | |
3071 | m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_FCLASS1; | |
3072 | info->xmit_size = | |
3073 | m->mdmreg[REG_PSIZE] * 16; | |
3074 | break; | |
3075 | case '2': | |
3076 | p[0]++; | |
3077 | if (!(dev->global_features & | |
3078 | ISDN_FEATURE_L3_FCLASS2)) | |
3079 | PARSE_ERROR1; | |
3080 | m->mdmreg[REG_SI1] = 1; | |
3081 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_FAX; | |
3082 | m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_FCLASS2; | |
3083 | info->xmit_size = | |
3084 | m->mdmreg[REG_PSIZE] * 16; | |
3085 | break; | |
1da177e4 | 3086 | #endif |
475be4d8 JP |
3087 | case '8': |
3088 | p[0]++; | |
3089 | /* L2 will change on dialout with si=1 */ | |
3090 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; | |
3091 | m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_TRANS; | |
3092 | m->mdmreg[REG_SI1] = 5; | |
3093 | info->xmit_size = VBUF; | |
3094 | break; | |
3095 | case '?': | |
3096 | p[0]++; | |
3097 | strcpy(rs, "\r\n0,"); | |
1da177e4 | 3098 | #ifdef CONFIG_ISDN_TTY_FAX |
475be4d8 JP |
3099 | if (dev->global_features & |
3100 | ISDN_FEATURE_L3_FCLASS1) | |
3101 | strcat(rs, "1,"); | |
3102 | if (dev->global_features & | |
3103 | ISDN_FEATURE_L3_FCLASS2) | |
3104 | strcat(rs, "2,"); | |
3105 | #endif | |
3106 | strcat(rs, "8"); | |
3107 | isdn_tty_at_cout(rs, info); | |
1da177e4 LT |
3108 | break; |
3109 | default: | |
3110 | PARSE_ERROR1; | |
475be4d8 JP |
3111 | } |
3112 | break; | |
3113 | default: | |
3114 | PARSE_ERROR1; | |
1da177e4 LT |
3115 | } |
3116 | return 0; | |
3117 | } | |
3118 | #ifdef CONFIG_ISDN_TTY_FAX | |
3119 | return (isdn_tty_cmd_PLUSF_FAX(p, info)); | |
3120 | #else | |
3121 | PARSE_ERROR1; | |
3122 | #endif | |
3123 | } | |
3124 | ||
3125 | /* | |
3126 | * Parse AT+V.. commands | |
3127 | */ | |
3128 | static int | |
475be4d8 | 3129 | isdn_tty_cmd_PLUSV(char **p, modem_info *info) |
1da177e4 LT |
3130 | { |
3131 | atemu *m = &info->emu; | |
3132 | isdn_ctrl cmd; | |
3133 | static char *vcmd[] = | |
475be4d8 | 3134 | {"NH", "IP", "LS", "RX", "SD", "SM", "TX", "DD", NULL}; |
1da177e4 LT |
3135 | int i; |
3136 | int par1; | |
3137 | int par2; | |
3138 | char rs[20]; | |
3139 | ||
3140 | i = 0; | |
3141 | while (vcmd[i]) { | |
3142 | if (!strncmp(vcmd[i], p[0], 2)) { | |
3143 | p[0] += 2; | |
3144 | break; | |
3145 | } | |
3146 | i++; | |
3147 | } | |
3148 | switch (i) { | |
475be4d8 JP |
3149 | case 0: |
3150 | /* AT+VNH - Auto hangup feature */ | |
3151 | switch (*p[0]) { | |
3152 | case '?': | |
3153 | p[0]++; | |
3154 | isdn_tty_at_cout("\r\n1", info); | |
3155 | break; | |
3156 | case '=': | |
3157 | p[0]++; | |
1da177e4 | 3158 | switch (*p[0]) { |
475be4d8 JP |
3159 | case '1': |
3160 | p[0]++; | |
3161 | break; | |
3162 | case '?': | |
3163 | p[0]++; | |
3164 | isdn_tty_at_cout("\r\n1", info); | |
3165 | break; | |
3166 | default: | |
3167 | PARSE_ERROR1; | |
1da177e4 LT |
3168 | } |
3169 | break; | |
475be4d8 JP |
3170 | default: |
3171 | PARSE_ERROR1; | |
3172 | } | |
3173 | break; | |
3174 | case 1: | |
3175 | /* AT+VIP - Reset all voice parameters */ | |
3176 | isdn_tty_modem_reset_vpar(m); | |
3177 | break; | |
3178 | case 2: | |
3179 | /* AT+VLS - Select device, accept incoming call */ | |
3180 | switch (*p[0]) { | |
3181 | case '?': | |
3182 | p[0]++; | |
3183 | sprintf(rs, "\r\n%d", m->vpar[0]); | |
3184 | isdn_tty_at_cout(rs, info); | |
1da177e4 | 3185 | break; |
475be4d8 JP |
3186 | case '=': |
3187 | p[0]++; | |
1da177e4 | 3188 | switch (*p[0]) { |
475be4d8 JP |
3189 | case '0': |
3190 | p[0]++; | |
3191 | m->vpar[0] = 0; | |
3192 | break; | |
3193 | case '2': | |
3194 | p[0]++; | |
3195 | m->vpar[0] = 2; | |
3196 | break; | |
3197 | case '?': | |
3198 | p[0]++; | |
3199 | isdn_tty_at_cout("\r\n0,2", info); | |
3200 | break; | |
3201 | default: | |
1da177e4 LT |
3202 | PARSE_ERROR1; |
3203 | } | |
475be4d8 JP |
3204 | break; |
3205 | default: | |
3206 | PARSE_ERROR1; | |
3207 | } | |
3208 | break; | |
3209 | case 3: | |
3210 | /* AT+VRX - Start recording */ | |
3211 | if (!m->vpar[0]) | |
3212 | PARSE_ERROR1; | |
3213 | if (info->online != 1) { | |
3214 | isdn_tty_modem_result(RESULT_NO_ANSWER, info); | |
3215 | return 1; | |
3216 | } | |
3217 | info->dtmf_state = isdn_audio_dtmf_init(info->dtmf_state); | |
3218 | if (!info->dtmf_state) { | |
3219 | printk(KERN_WARNING "isdn_tty: Couldn't malloc dtmf state\n"); | |
3220 | PARSE_ERROR1; | |
3221 | } | |
3222 | info->silence_state = isdn_audio_silence_init(info->silence_state); | |
3223 | if (!info->silence_state) { | |
3224 | printk(KERN_WARNING "isdn_tty: Couldn't malloc silence state\n"); | |
3225 | PARSE_ERROR1; | |
3226 | } | |
3227 | if (m->vpar[3] < 5) { | |
3228 | info->adpcmr = isdn_audio_adpcm_init(info->adpcmr, m->vpar[3]); | |
3229 | if (!info->adpcmr) { | |
3230 | printk(KERN_WARNING "isdn_tty: Couldn't malloc adpcm state\n"); | |
1da177e4 LT |
3231 | PARSE_ERROR1; |
3232 | } | |
475be4d8 | 3233 | } |
1da177e4 | 3234 | #ifdef ISDN_DEBUG_AT |
475be4d8 | 3235 | printk(KERN_DEBUG "AT: +VRX\n"); |
1da177e4 | 3236 | #endif |
475be4d8 JP |
3237 | info->vonline |= 1; |
3238 | isdn_tty_modem_result(RESULT_CONNECT, info); | |
3239 | return 0; | |
3240 | break; | |
3241 | case 4: | |
3242 | /* AT+VSD - Silence detection */ | |
3243 | switch (*p[0]) { | |
3244 | case '?': | |
3245 | p[0]++; | |
3246 | sprintf(rs, "\r\n<%d>,<%d>", | |
3247 | m->vpar[1], | |
3248 | m->vpar[2]); | |
3249 | isdn_tty_at_cout(rs, info); | |
1da177e4 | 3250 | break; |
475be4d8 JP |
3251 | case '=': |
3252 | p[0]++; | |
3253 | if ((*p[0] >= '0') && (*p[0] <= '9')) { | |
3254 | par1 = isdn_getnum(p); | |
3255 | if ((par1 < 0) || (par1 > 31)) | |
1da177e4 | 3256 | PARSE_ERROR1; |
475be4d8 | 3257 | if (*p[0] != ',') |
1da177e4 | 3258 | PARSE_ERROR1; |
475be4d8 JP |
3259 | p[0]++; |
3260 | par2 = isdn_getnum(p); | |
3261 | if ((par2 < 0) || (par2 > 255)) | |
3262 | PARSE_ERROR1; | |
3263 | m->vpar[1] = par1; | |
3264 | m->vpar[2] = par2; | |
3265 | break; | |
3266 | } else | |
3267 | if (*p[0] == '?') { | |
1da177e4 | 3268 | p[0]++; |
475be4d8 JP |
3269 | isdn_tty_at_cout("\r\n<0-31>,<0-255>", |
3270 | info); | |
1da177e4 | 3271 | break; |
475be4d8 | 3272 | } else |
1da177e4 | 3273 | PARSE_ERROR1; |
1da177e4 | 3274 | break; |
475be4d8 JP |
3275 | default: |
3276 | PARSE_ERROR1; | |
3277 | } | |
3278 | break; | |
3279 | case 5: | |
3280 | /* AT+VSM - Select compression */ | |
3281 | switch (*p[0]) { | |
3282 | case '?': | |
3283 | p[0]++; | |
3284 | sprintf(rs, "\r\n<%d>,<%d><8000>", | |
3285 | m->vpar[3], | |
3286 | m->vpar[1]); | |
3287 | isdn_tty_at_cout(rs, info); | |
3288 | break; | |
3289 | case '=': | |
3290 | p[0]++; | |
3291 | switch (*p[0]) { | |
3292 | case '2': | |
3293 | case '3': | |
3294 | case '4': | |
3295 | case '5': | |
3296 | case '6': | |
3297 | par1 = isdn_getnum(p); | |
3298 | if ((par1 < 2) || (par1 > 6)) | |
3299 | PARSE_ERROR1; | |
3300 | m->vpar[3] = par1; | |
3301 | break; | |
3302 | case '?': | |
3303 | p[0]++; | |
3304 | isdn_tty_at_cout("\r\n2;ADPCM;2;0;(8000)\r\n", | |
3305 | info); | |
3306 | isdn_tty_at_cout("3;ADPCM;3;0;(8000)\r\n", | |
3307 | info); | |
3308 | isdn_tty_at_cout("4;ADPCM;4;0;(8000)\r\n", | |
3309 | info); | |
3310 | isdn_tty_at_cout("5;ALAW;8;0;(8000)\r\n", | |
3311 | info); | |
3312 | isdn_tty_at_cout("6;ULAW;8;0;(8000)\r\n", | |
3313 | info); | |
3314 | break; | |
3315 | default: | |
1da177e4 | 3316 | PARSE_ERROR1; |
1da177e4 | 3317 | } |
475be4d8 JP |
3318 | break; |
3319 | default: | |
3320 | PARSE_ERROR1; | |
3321 | } | |
3322 | break; | |
3323 | case 6: | |
3324 | /* AT+VTX - Start sending */ | |
3325 | if (!m->vpar[0]) | |
3326 | PARSE_ERROR1; | |
3327 | if (info->online != 1) { | |
3328 | isdn_tty_modem_result(RESULT_NO_ANSWER, info); | |
3329 | return 1; | |
3330 | } | |
3331 | info->dtmf_state = isdn_audio_dtmf_init(info->dtmf_state); | |
3332 | if (!info->dtmf_state) { | |
3333 | printk(KERN_WARNING "isdn_tty: Couldn't malloc dtmf state\n"); | |
3334 | PARSE_ERROR1; | |
3335 | } | |
3336 | if (m->vpar[3] < 5) { | |
3337 | info->adpcms = isdn_audio_adpcm_init(info->adpcms, m->vpar[3]); | |
3338 | if (!info->adpcms) { | |
3339 | printk(KERN_WARNING "isdn_tty: Couldn't malloc adpcm state\n"); | |
1da177e4 LT |
3340 | PARSE_ERROR1; |
3341 | } | |
475be4d8 | 3342 | } |
1da177e4 | 3343 | #ifdef ISDN_DEBUG_AT |
475be4d8 | 3344 | printk(KERN_DEBUG "AT: +VTX\n"); |
1da177e4 | 3345 | #endif |
475be4d8 JP |
3346 | m->lastDLE = 0; |
3347 | info->vonline |= 2; | |
3348 | isdn_tty_modem_result(RESULT_CONNECT, info); | |
3349 | return 0; | |
3350 | break; | |
3351 | case 7: | |
3352 | /* AT+VDD - DTMF detection */ | |
3353 | switch (*p[0]) { | |
3354 | case '?': | |
3355 | p[0]++; | |
3356 | sprintf(rs, "\r\n<%d>,<%d>", | |
3357 | m->vpar[4], | |
3358 | m->vpar[5]); | |
3359 | isdn_tty_at_cout(rs, info); | |
1da177e4 | 3360 | break; |
475be4d8 JP |
3361 | case '=': |
3362 | p[0]++; | |
3363 | if ((*p[0] >= '0') && (*p[0] <= '9')) { | |
3364 | if (info->online != 1) | |
3365 | PARSE_ERROR1; | |
3366 | par1 = isdn_getnum(p); | |
3367 | if ((par1 < 0) || (par1 > 15)) | |
3368 | PARSE_ERROR1; | |
3369 | if (*p[0] != ',') | |
1da177e4 | 3370 | PARSE_ERROR1; |
475be4d8 JP |
3371 | p[0]++; |
3372 | par2 = isdn_getnum(p); | |
3373 | if ((par2 < 0) || (par2 > 255)) | |
3374 | PARSE_ERROR1; | |
3375 | m->vpar[4] = par1; | |
3376 | m->vpar[5] = par2; | |
3377 | cmd.driver = info->isdn_driver; | |
3378 | cmd.command = ISDN_CMD_AUDIO; | |
3379 | cmd.arg = info->isdn_channel + (ISDN_AUDIO_SETDD << 8); | |
3380 | cmd.parm.num[0] = par1; | |
3381 | cmd.parm.num[1] = par2; | |
3382 | isdn_command(&cmd); | |
3383 | break; | |
3384 | } else | |
3385 | if (*p[0] == '?') { | |
3386 | p[0]++; | |
3387 | isdn_tty_at_cout("\r\n<0-15>,<0-255>", | |
3388 | info); | |
1da177e4 | 3389 | break; |
475be4d8 | 3390 | } else |
1da177e4 | 3391 | PARSE_ERROR1; |
1da177e4 LT |
3392 | break; |
3393 | default: | |
3394 | PARSE_ERROR1; | |
475be4d8 JP |
3395 | } |
3396 | break; | |
3397 | default: | |
3398 | PARSE_ERROR1; | |
1da177e4 LT |
3399 | } |
3400 | return 0; | |
3401 | } | |
3402 | #endif /* CONFIG_ISDN_AUDIO */ | |
3403 | ||
3404 | /* | |
3405 | * Parse and perform an AT-command-line. | |
3406 | */ | |
3407 | static void | |
475be4d8 | 3408 | isdn_tty_parse_at(modem_info *info) |
1da177e4 LT |
3409 | { |
3410 | atemu *m = &info->emu; | |
3411 | char *p; | |
f417f5e4 | 3412 | char ds[ISDN_MSNLEN]; |
1da177e4 LT |
3413 | |
3414 | #ifdef ISDN_DEBUG_AT | |
3415 | printk(KERN_DEBUG "AT: '%s'\n", m->mdmcmd); | |
3416 | #endif | |
3417 | for (p = &m->mdmcmd[2]; *p;) { | |
3418 | switch (*p) { | |
475be4d8 JP |
3419 | case ' ': |
3420 | p++; | |
3421 | break; | |
3422 | case 'A': | |
3423 | /* A - Accept incoming call */ | |
3424 | p++; | |
3425 | isdn_tty_cmd_ATA(info); | |
3426 | return; | |
475be4d8 JP |
3427 | case 'D': |
3428 | /* D - Dial */ | |
3429 | if (info->msr & UART_MSR_DCD) | |
3430 | PARSE_ERROR; | |
3431 | if (info->msr & UART_MSR_RI) { | |
3432 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
3433 | return; | |
3434 | } | |
3435 | isdn_tty_getdial(++p, ds, sizeof ds); | |
3436 | p += strlen(p); | |
3437 | if (!strlen(m->msn)) | |
3438 | isdn_tty_modem_result(RESULT_NO_MSN_EAZ, info); | |
3439 | else if (strlen(ds)) | |
3440 | isdn_tty_dial(ds, info, m); | |
3441 | else | |
3442 | PARSE_ERROR; | |
3443 | return; | |
3444 | case 'E': | |
3445 | /* E - Turn Echo on/off */ | |
3446 | p++; | |
3447 | switch (isdn_getnum(&p)) { | |
3448 | case 0: | |
3449 | m->mdmreg[REG_ECHO] &= ~BIT_ECHO; | |
1da177e4 | 3450 | break; |
475be4d8 JP |
3451 | case 1: |
3452 | m->mdmreg[REG_ECHO] |= BIT_ECHO; | |
3453 | break; | |
3454 | default: | |
3455 | PARSE_ERROR; | |
3456 | } | |
3457 | break; | |
3458 | case 'H': | |
3459 | /* H - On/Off-hook */ | |
3460 | p++; | |
3461 | switch (*p) { | |
3462 | case '0': | |
1da177e4 | 3463 | p++; |
475be4d8 | 3464 | isdn_tty_on_hook(info); |
1da177e4 | 3465 | break; |
475be4d8 | 3466 | case '1': |
1da177e4 | 3467 | p++; |
475be4d8 | 3468 | isdn_tty_off_hook(); |
1da177e4 | 3469 | break; |
475be4d8 JP |
3470 | default: |
3471 | isdn_tty_on_hook(info); | |
3472 | break; | |
3473 | } | |
3474 | break; | |
3475 | case 'I': | |
3476 | /* I - Information */ | |
3477 | p++; | |
3478 | isdn_tty_at_cout("\r\nLinux ISDN", info); | |
3479 | switch (*p) { | |
3480 | case '0': | |
3481 | case '1': | |
1da177e4 | 3482 | p++; |
1da177e4 | 3483 | break; |
475be4d8 | 3484 | case '2': |
1da177e4 | 3485 | p++; |
475be4d8 | 3486 | isdn_tty_report(info); |
1da177e4 | 3487 | break; |
475be4d8 | 3488 | case '3': |
1da177e4 | 3489 | p++; |
475be4d8 JP |
3490 | snprintf(ds, sizeof(ds), "\r\n%d", info->emu.charge); |
3491 | isdn_tty_at_cout(ds, info); | |
1da177e4 | 3492 | break; |
475be4d8 JP |
3493 | default:; |
3494 | } | |
3495 | break; | |
3496 | #ifdef DUMMY_HAYES_AT | |
3497 | case 'L': | |
3498 | case 'M': | |
3499 | /* only for be compilant with common scripts */ | |
3500 | /* no function */ | |
3501 | p++; | |
3502 | isdn_getnum(&p); | |
3503 | break; | |
1da177e4 | 3504 | #endif |
475be4d8 JP |
3505 | case 'O': |
3506 | /* O - Go online */ | |
3507 | p++; | |
3508 | if (info->msr & UART_MSR_DCD) | |
3509 | /* if B-Channel is up */ | |
3510 | isdn_tty_modem_result((m->mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM) ? RESULT_CONNECT : RESULT_CONNECT64000, info); | |
3511 | else | |
3512 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
3513 | return; | |
3514 | case 'Q': | |
3515 | /* Q - Turn Emulator messages on/off */ | |
3516 | p++; | |
3517 | switch (isdn_getnum(&p)) { | |
3518 | case 0: | |
3519 | m->mdmreg[REG_RESP] |= BIT_RESP; | |
3520 | break; | |
3521 | case 1: | |
3522 | m->mdmreg[REG_RESP] &= ~BIT_RESP; | |
3523 | break; | |
3524 | default: | |
3525 | PARSE_ERROR; | |
3526 | } | |
3527 | break; | |
3528 | case 'S': | |
3529 | /* S - Set/Get Register */ | |
3530 | p++; | |
3531 | if (isdn_tty_cmd_ATS(&p, info)) | |
1da177e4 | 3532 | return; |
475be4d8 JP |
3533 | break; |
3534 | case 'V': | |
3535 | /* V - Numeric or ASCII Emulator-messages */ | |
3536 | p++; | |
3537 | switch (isdn_getnum(&p)) { | |
3538 | case 0: | |
3539 | m->mdmreg[REG_RESP] |= BIT_RESPNUM; | |
3540 | break; | |
3541 | case 1: | |
3542 | m->mdmreg[REG_RESP] &= ~BIT_RESPNUM; | |
1da177e4 | 3543 | break; |
475be4d8 JP |
3544 | default: |
3545 | PARSE_ERROR; | |
3546 | } | |
3547 | break; | |
3548 | case 'Z': | |
3549 | /* Z - Load Registers from Profile */ | |
3550 | p++; | |
3551 | if (info->msr & UART_MSR_DCD) { | |
3552 | info->online = 0; | |
3553 | isdn_tty_on_hook(info); | |
3554 | } | |
3555 | isdn_tty_modem_reset_regs(info, 1); | |
3556 | break; | |
3557 | case '+': | |
3558 | p++; | |
3559 | switch (*p) { | |
3560 | #ifdef CONFIG_ISDN_AUDIO | |
3561 | case 'F': | |
1da177e4 | 3562 | p++; |
475be4d8 | 3563 | if (isdn_tty_cmd_PLUSF(&p, info)) |
1da177e4 LT |
3564 | return; |
3565 | break; | |
3566 | case 'V': | |
475be4d8 JP |
3567 | if ((!(m->mdmreg[REG_SI1] & 1)) || |
3568 | (m->mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM)) | |
3569 | PARSE_ERROR; | |
1da177e4 | 3570 | p++; |
475be4d8 JP |
3571 | if (isdn_tty_cmd_PLUSV(&p, info)) |
3572 | return; | |
1da177e4 | 3573 | break; |
475be4d8 JP |
3574 | #endif /* CONFIG_ISDN_AUDIO */ |
3575 | case 'S': /* SUSPEND */ | |
1da177e4 | 3576 | p++; |
475be4d8 JP |
3577 | isdn_tty_get_msnstr(ds, &p); |
3578 | isdn_tty_suspend(ds, info, m); | |
1da177e4 | 3579 | break; |
475be4d8 | 3580 | case 'R': /* RESUME */ |
1da177e4 | 3581 | p++; |
475be4d8 JP |
3582 | isdn_tty_get_msnstr(ds, &p); |
3583 | isdn_tty_resume(ds, info, m); | |
1da177e4 | 3584 | break; |
475be4d8 | 3585 | case 'M': /* MESSAGE */ |
1da177e4 | 3586 | p++; |
475be4d8 | 3587 | isdn_tty_send_msg(info, m, p); |
1da177e4 LT |
3588 | break; |
3589 | default: | |
3590 | PARSE_ERROR; | |
475be4d8 JP |
3591 | } |
3592 | break; | |
3593 | case '&': | |
3594 | p++; | |
3595 | if (isdn_tty_cmd_ATand(&p, info)) | |
3596 | return; | |
3597 | break; | |
3598 | default: | |
3599 | PARSE_ERROR; | |
1da177e4 LT |
3600 | } |
3601 | } | |
3602 | #ifdef CONFIG_ISDN_AUDIO | |
3603 | if (!info->vonline) | |
3604 | #endif | |
3605 | isdn_tty_modem_result(RESULT_OK, info); | |
3606 | } | |
3607 | ||
3608 | /* Need own toupper() because standard-toupper is not available | |
3609 | * within modules. | |
3610 | */ | |
475be4d8 | 3611 | #define my_toupper(c) (((c >= 'a') && (c <= 'z')) ? (c & 0xdf) : c) |
1da177e4 LT |
3612 | |
3613 | /* | |
3614 | * Perform line-editing of AT-commands | |
3615 | * | |
3616 | * Parameters: | |
3617 | * p inputbuffer | |
3618 | * count length of buffer | |
3619 | * channel index to line (minor-device) | |
3620 | */ | |
3621 | static int | |
475be4d8 | 3622 | isdn_tty_edit_at(const char *p, int count, modem_info *info) |
1da177e4 LT |
3623 | { |
3624 | atemu *m = &info->emu; | |
3625 | int total = 0; | |
3626 | u_char c; | |
3627 | char eb[2]; | |
3628 | int cnt; | |
3629 | ||
3630 | for (cnt = count; cnt > 0; p++, cnt--) { | |
3631 | c = *p; | |
3632 | total++; | |
3633 | if (c == m->mdmreg[REG_CR] || c == m->mdmreg[REG_LF]) { | |
3634 | /* Separator (CR or LF) */ | |
3635 | m->mdmcmd[m->mdmcmdl] = 0; | |
3636 | if (m->mdmreg[REG_ECHO] & BIT_ECHO) { | |
3637 | eb[0] = c; | |
3638 | eb[1] = 0; | |
3639 | isdn_tty_at_cout(eb, info); | |
3640 | } | |
3641 | if ((m->mdmcmdl >= 2) && (!(strncmp(m->mdmcmd, "AT", 2)))) | |
3642 | isdn_tty_parse_at(info); | |
3643 | m->mdmcmdl = 0; | |
3644 | continue; | |
3645 | } | |
3646 | if (c == m->mdmreg[REG_BS] && m->mdmreg[REG_BS] < 128) { | |
3647 | /* Backspace-Function */ | |
3648 | if ((m->mdmcmdl > 2) || (!m->mdmcmdl)) { | |
3649 | if (m->mdmcmdl) | |
3650 | m->mdmcmdl--; | |
3651 | if (m->mdmreg[REG_ECHO] & BIT_ECHO) | |
3652 | isdn_tty_at_cout("\b", info); | |
3653 | } | |
3654 | continue; | |
3655 | } | |
3656 | if (cmdchar(c)) { | |
3657 | if (m->mdmreg[REG_ECHO] & BIT_ECHO) { | |
3658 | eb[0] = c; | |
3659 | eb[1] = 0; | |
3660 | isdn_tty_at_cout(eb, info); | |
3661 | } | |
3662 | if (m->mdmcmdl < 255) { | |
3663 | c = my_toupper(c); | |
3664 | switch (m->mdmcmdl) { | |
475be4d8 JP |
3665 | case 1: |
3666 | if (c == 'T') { | |
3667 | m->mdmcmd[m->mdmcmdl] = c; | |
3668 | m->mdmcmd[++m->mdmcmdl] = 0; | |
1da177e4 | 3669 | break; |
475be4d8 JP |
3670 | } else |
3671 | m->mdmcmdl = 0; | |
3672 | /* Fall through, check for 'A' */ | |
3673 | case 0: | |
3674 | if (c == 'A') { | |
1da177e4 LT |
3675 | m->mdmcmd[m->mdmcmdl] = c; |
3676 | m->mdmcmd[++m->mdmcmdl] = 0; | |
475be4d8 JP |
3677 | } |
3678 | break; | |
3679 | default: | |
3680 | m->mdmcmd[m->mdmcmdl] = c; | |
3681 | m->mdmcmd[++m->mdmcmdl] = 0; | |
1da177e4 LT |
3682 | } |
3683 | } | |
3684 | } | |
3685 | } | |
3686 | return total; | |
3687 | } | |
3688 | ||
3689 | /* | |
3690 | * Switch all modem-channels who are online and got a valid | |
3691 | * escape-sequence 1.5 seconds ago, to command-mode. | |
3692 | * This function is called every second via timer-interrupt from within | |
3693 | * timer-dispatcher isdn_timer_function() | |
3694 | */ | |
3695 | void | |
3696 | isdn_tty_modem_escape(void) | |
3697 | { | |
3698 | int ton = 0; | |
3699 | int i; | |
3700 | int midx; | |
3701 | ||
3702 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) | |
37630f40 JS |
3703 | if (USG_MODEM(dev->usage[i]) && (midx = dev->m_idx[i]) >= 0) { |
3704 | modem_info *info = &dev->mdm.info[midx]; | |
3705 | if (info->online) { | |
3706 | ton = 1; | |
3707 | if ((info->emu.pluscount == 3) && | |
3708 | time_after(jiffies, | |
3709 | info->emu.lastplus + PLUSWAIT2)) { | |
3710 | info->emu.pluscount = 0; | |
3711 | info->online = 0; | |
3712 | isdn_tty_modem_result(RESULT_OK, info); | |
1da177e4 LT |
3713 | } |
3714 | } | |
37630f40 | 3715 | } |
1da177e4 LT |
3716 | isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS, ton); |
3717 | } | |
3718 | ||
3719 | /* | |
3720 | * Put a RING-message to all modem-channels who have the RI-bit set. | |
3721 | * This function is called every second via timer-interrupt from within | |
3722 | * timer-dispatcher isdn_timer_function() | |
3723 | */ | |
3724 | void | |
3725 | isdn_tty_modem_ring(void) | |
3726 | { | |
3727 | int ton = 0; | |
3728 | int i; | |
3729 | ||
3730 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
3731 | modem_info *info = &dev->mdm.info[i]; | |
3732 | if (info->msr & UART_MSR_RI) { | |
3733 | ton = 1; | |
3734 | isdn_tty_modem_result(RESULT_RING, info); | |
3735 | } | |
3736 | } | |
3737 | isdn_timer_ctrl(ISDN_TIMER_MODEMRING, ton); | |
3738 | } | |
3739 | ||
3740 | /* | |
3741 | * For all online tty's, try sending data to | |
3742 | * the lower levels. | |
3743 | */ | |
3744 | void | |
3745 | isdn_tty_modem_xmit(void) | |
3746 | { | |
3747 | int ton = 1; | |
3748 | int i; | |
3749 | ||
3750 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
3751 | modem_info *info = &dev->mdm.info[i]; | |
3752 | if (info->online) { | |
3753 | ton = 1; | |
3754 | isdn_tty_senddown(info); | |
3755 | isdn_tty_tint(info); | |
3756 | } | |
3757 | } | |
3758 | isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, ton); | |
3759 | } | |
3760 | ||
3761 | /* | |
3762 | * Check all channels if we have a 'no carrier' timeout. | |
3763 | * Timeout value is set by Register S7. | |
3764 | */ | |
3765 | void | |
3766 | isdn_tty_carrier_timeout(void) | |
3767 | { | |
3768 | int ton = 0; | |
3769 | int i; | |
3770 | ||
3771 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { | |
3772 | modem_info *info = &dev->mdm.info[i]; | |
37630f40 JS |
3773 | if (!info->dialing) |
3774 | continue; | |
3775 | if (info->emu.carrierwait++ > info->emu.mdmreg[REG_WAITC]) { | |
3776 | info->dialing = 0; | |
3777 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); | |
3778 | isdn_tty_modem_hup(info, 1); | |
3779 | } else | |
3780 | ton = 1; | |
1da177e4 LT |
3781 | } |
3782 | isdn_timer_ctrl(ISDN_TIMER_CARRIER, ton); | |
3783 | } |