1 /* $Id: isdn_tty.c,v 1.1.2.3 2004/02/10 01:07:13 keil Exp $
3 * Linux ISDN subsystem, tty functions and AT-command emulator (linklevel).
5 * Copyright 1994-1999 by Fritz Elfert (fritz@isdn4linux.de)
6 * Copyright 1995,96 by Thinking Objects Software GmbH Wuerzburg
8 * This software may be used and distributed according to the terms
9 * of the GNU General Public License, incorporated herein by reference.
12 #undef ISDN_TTY_STAT_DEBUG
14 #include <linux/config.h>
15 #include <linux/isdn.h>
16 #include <linux/delay.h>
17 #include "isdn_common.h"
19 #ifdef CONFIG_ISDN_AUDIO
20 #include "isdn_audio.h"
22 #define VBUFX (VBUF/16)
25 #define FIX_FILE_TRANSFER
26 #define DUMMY_HAYES_AT
30 static int isdn_tty_edit_at(const char *, int, modem_info *);
31 static void isdn_tty_check_esc(const u_char *, u_char, int, int *, u_long *);
32 static void isdn_tty_modem_reset_regs(modem_info *, int);
33 static void isdn_tty_cmd_ATA(modem_info *);
34 static void isdn_tty_flush_buffer(struct tty_struct *);
35 static void isdn_tty_modem_result(int, modem_info *);
36 #ifdef CONFIG_ISDN_AUDIO
37 static int isdn_tty_countDLE(unsigned char *, int);
40 /* Leave this unchanged unless you know what you do! */
41 #define MODEM_PARANOIA_CHECK
42 #define MODEM_DO_RESTART
44 static int bit2si[8] =
45 {1, 5, 7, 7, 7, 7, 7, 7};
46 static int si2bit[8] =
47 {4, 1, 4, 4, 4, 4, 4, 4};
49 char *isdn_tty_revision = "$Revision: 1.1.2.3 $";
52 /* isdn_tty_try_read() is called from within isdn_tty_rcv_skb()
53 * to stuff incoming data directly into a tty's flip-buffer. This
54 * is done to speed up tty-receiving if the receive-queue is empty.
55 * This routine MUST be called with interrupts off.
58 * 0 = Failure, data has to be buffered and later processed by
59 * isdn_tty_readmodem().
62 isdn_tty_try_read(modem_info * info, struct sk_buff *skb)
66 struct tty_struct *tty;
69 if ((tty = info->tty)) {
70 if (info->mcr & UART_MCR_RTS) {
71 c = TTY_FLIPBUF_SIZE - tty->flip.count;
73 #ifdef CONFIG_ISDN_AUDIO
74 + ISDN_AUDIO_SKB_DLECOUNT(skb)
78 #ifdef CONFIG_ISDN_AUDIO
79 if (ISDN_AUDIO_SKB_DLECOUNT(skb))
81 if (*skb->data == DLE)
82 tty_insert_flip_char(tty, DLE, 0);
83 tty_insert_flip_char(tty, *skb->data++, 0);
86 memcpy(tty->flip.char_buf_ptr,
88 tty->flip.count += len;
89 tty->flip.char_buf_ptr += len;
90 memset(tty->flip.flag_buf_ptr, 0, len);
91 tty->flip.flag_buf_ptr += len;
92 #ifdef CONFIG_ISDN_AUDIO
95 if (info->emu.mdmreg[REG_CPPP] & BIT_CPPP)
96 tty->flip.flag_buf_ptr[len - 1] = 0xff;
97 schedule_delayed_work(&tty->flip.work, 1);
107 /* isdn_tty_readmodem() is called periodically from within timer-interrupt.
108 * It tries getting received data from the receive queue an stuff it into
109 * the tty's flip-buffer.
112 isdn_tty_readmodem(void)
119 struct tty_struct *tty;
122 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
123 if ((midx = dev->m_idx[i]) >= 0) {
124 info = &dev->mdm.info[midx];
127 #ifdef CONFIG_ISDN_AUDIO
128 isdn_audio_eval_dtmf(info);
129 if ((info->vonline & 1) && (info->emu.vpar[1]))
130 isdn_audio_eval_silence(info);
132 if ((tty = info->tty)) {
133 if (info->mcr & UART_MCR_RTS) {
134 c = TTY_FLIPBUF_SIZE - tty->flip.count;
136 r = isdn_readbchan(info->isdn_driver, info->isdn_channel,
137 tty->flip.char_buf_ptr,
138 tty->flip.flag_buf_ptr, c, NULL);
139 /* CISCO AsyncPPP Hack */
140 if (!(info->emu.mdmreg[REG_CPPP] & BIT_CPPP))
141 memset(tty->flip.flag_buf_ptr, 0, r);
142 tty->flip.count += r;
143 tty->flip.flag_buf_ptr += r;
144 tty->flip.char_buf_ptr += r;
146 schedule_delayed_work(&tty->flip.work, 1);
161 isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 0);
165 isdn_tty_rcv_skb(int i, int di, int channel, struct sk_buff *skb)
169 #ifdef CONFIG_ISDN_AUDIO
174 if ((midx = dev->m_idx[i]) < 0) {
175 /* if midx is invalid, packet is not for tty */
178 info = &dev->mdm.info[midx];
179 #ifdef CONFIG_ISDN_AUDIO
182 if ((info->vonline) && (!info->emu.vpar[4]))
183 isdn_audio_calc_dtmf(info, skb->data, skb->len, ifmt);
184 if ((info->vonline & 1) && (info->emu.vpar[1]))
185 isdn_audio_calc_silence(info, skb->data, skb->len, ifmt);
187 if ((info->online < 2)
188 #ifdef CONFIG_ISDN_AUDIO
189 && (!(info->vonline & 1))
192 /* If Modem not listening, drop data */
196 if (info->emu.mdmreg[REG_T70] & BIT_T70) {
197 if (info->emu.mdmreg[REG_T70] & BIT_T70_EXT) {
198 /* T.70 decoding: throw away the T.70 header (2 or 4 bytes) */
199 if (skb->data[0] == 3) /* pure data packet -> 4 byte headers */
202 if (skb->data[0] == 1) /* keepalive packet -> 2 byte hdr */
205 /* T.70 decoding: Simply throw away the T.70 header (4 bytes) */
206 if ((skb->data[0] == 1) && ((skb->data[1] == 0) || (skb->data[1] == 1)))
209 #ifdef CONFIG_ISDN_AUDIO
210 ISDN_AUDIO_SKB_DLECOUNT(skb) = 0;
211 ISDN_AUDIO_SKB_LOCK(skb) = 0;
212 if (info->vonline & 1) {
213 /* voice conversion/compression */
214 switch (info->emu.vpar[3]) {
219 * Since compressed data takes less
220 * space, we can overwrite the buffer.
222 skb_trim(skb, isdn_audio_xlaw2adpcm(info->adpcmr,
231 isdn_audio_ulaw2alaw(skb->data, skb->len);
236 isdn_audio_alaw2ulaw(skb->data, skb->len);
239 ISDN_AUDIO_SKB_DLECOUNT(skb) =
240 isdn_tty_countDLE(skb->data, skb->len);
242 #ifdef CONFIG_ISDN_TTY_FAX
244 if (info->faxonline & 2) {
245 isdn_tty_fax_bitorder(info, skb);
246 ISDN_AUDIO_SKB_DLECOUNT(skb) =
247 isdn_tty_countDLE(skb->data, skb->len);
252 /* Try to deliver directly via tty-flip-buf if queue is empty */
253 spin_lock_irqsave(&info->readlock, flags);
254 if (skb_queue_empty(&dev->drv[di]->rpqueue[channel]))
255 if (isdn_tty_try_read(info, skb)) {
256 spin_unlock_irqrestore(&info->readlock, flags);
259 /* Direct deliver failed or queue wasn't empty.
260 * Queue up for later dequeueing via timer-irq.
262 __skb_queue_tail(&dev->drv[di]->rpqueue[channel], skb);
263 dev->drv[di]->rcvcount[channel] +=
265 #ifdef CONFIG_ISDN_AUDIO
266 + ISDN_AUDIO_SKB_DLECOUNT(skb)
269 spin_unlock_irqrestore(&info->readlock, flags);
270 /* Schedule dequeuing */
271 if ((dev->modempoll) && (info->rcvsched))
272 isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1);
277 isdn_tty_cleanup_xmit(modem_info * info)
279 skb_queue_purge(&info->xmit_queue);
280 #ifdef CONFIG_ISDN_AUDIO
281 skb_queue_purge(&info->dtmf_queue);
286 isdn_tty_tint(modem_info * info)
288 struct sk_buff *skb = skb_dequeue(&info->xmit_queue);
294 if ((slen = isdn_writebuf_skb_stub(info->isdn_driver,
295 info->isdn_channel, 1, skb)) == len) {
296 struct tty_struct *tty = info->tty;
297 info->send_outstanding++;
298 info->msr &= ~UART_MSR_CTS;
299 info->lsr &= ~UART_LSR_TEMT;
304 /* Error: no channel, already shutdown, or wrong parameter */
308 skb_queue_head(&info->xmit_queue, skb);
311 #ifdef CONFIG_ISDN_AUDIO
313 isdn_tty_countDLE(unsigned char *buf, int len)
323 /* This routine is called from within isdn_tty_write() to perform
324 * DLE-decoding when sending audio-data.
327 isdn_tty_handleDLEdown(modem_info * info, atemu * m, int len)
329 unsigned char *p = &info->xmit_buf[info->xmit_count];
339 memmove(p, p + 1, len - 1);
350 #ifdef ISDN_DEBUG_MODEM_VOICE
352 "DLEdown: got DLE-DC4, send DLE-ETX on ttyI%d\n",
355 isdn_tty_at_cout("\020\003", info);
356 if (!info->vonline) {
357 #ifdef ISDN_DEBUG_MODEM_VOICE
359 "DLEdown: send VCON on ttyI%d\n",
362 isdn_tty_at_cout("\r\nVCON\r\n", info);
369 memmove(p, p + 1, len - 1);
383 printk(KERN_WARNING "isdn_tty: len<0 in DLEdown\n");
389 /* This routine is called from within isdn_tty_write() when receiving
390 * audio-data. It interrupts receiving, if an character other than
394 isdn_tty_end_vrx(const char *buf, int c)
400 if ((ch != 0x11) && (ch != 0x13))
407 static int voice_cf[7] =
408 {0, 0, 4, 3, 2, 0, 0};
410 #endif /* CONFIG_ISDN_AUDIO */
412 /* isdn_tty_senddown() is called either directly from within isdn_tty_write()
413 * or via timer-interrupt from within isdn_tty_modem_xmit(). It pulls
414 * outgoing data from the tty's xmit-buffer, handles voice-decompression or
415 * T.70 if necessary, and finally queues it up for sending via isdn_tty_tint.
418 isdn_tty_senddown(modem_info * info)
422 #ifdef CONFIG_ISDN_AUDIO
427 #ifdef CONFIG_ISDN_AUDIO
428 if (info->vonline & 4) {
430 if (!info->vonline) {
431 #ifdef ISDN_DEBUG_MODEM_VOICE
433 "senddown: send VCON on ttyI%d\n",
436 isdn_tty_at_cout("\r\nVCON\r\n", info);
440 if (!(buflen = info->xmit_count))
442 if ((info->emu.mdmreg[REG_CTS] & BIT_CTS) != 0)
443 info->msr &= ~UART_MSR_CTS;
444 info->lsr &= ~UART_LSR_TEMT;
445 /* info->xmit_count is modified here and in isdn_tty_write().
446 * So we return here if isdn_tty_write() is in the
449 atomic_inc(&info->xmit_lock);
450 if (!(atomic_dec_and_test(&info->xmit_lock)))
452 if (info->isdn_driver < 0) {
453 info->xmit_count = 0;
456 skb_res = dev->drv[info->isdn_driver]->interface->hl_hdrlen + 4;
457 #ifdef CONFIG_ISDN_AUDIO
458 if (info->vonline & 2)
459 audio_len = buflen * voice_cf[info->emu.vpar[3]];
462 skb = dev_alloc_skb(skb_res + buflen + audio_len);
464 skb = dev_alloc_skb(skb_res + buflen);
468 "isdn_tty: Out of memory in ttyI%d senddown\n",
472 skb_reserve(skb, skb_res);
473 memcpy(skb_put(skb, buflen), info->xmit_buf, buflen);
474 info->xmit_count = 0;
475 #ifdef CONFIG_ISDN_AUDIO
476 if (info->vonline & 2) {
477 /* For now, ifmt is fixed to 1 (alaw), since this
478 * is used with ISDN everywhere in the world, except
479 * US, Canada and Japan.
480 * Later, when US-ISDN protocols are implemented,
481 * this setting will depend on the D-channel protocol.
485 /* voice conversion/decompression */
486 switch (info->emu.vpar[3]) {
490 /* adpcm, compatible to ZyXel 1496 modem
491 * with ROM revision 6.01
493 audio_len = isdn_audio_adpcm2xlaw(info->adpcms,
496 skb_put(skb, audio_len),
498 skb_pull(skb, buflen);
499 skb_trim(skb, audio_len);
504 isdn_audio_alaw2ulaw(skb->data,
510 isdn_audio_ulaw2alaw(skb->data,
515 #endif /* CONFIG_ISDN_AUDIO */
516 if (info->emu.mdmreg[REG_T70] & BIT_T70) {
517 /* Add T.70 simplified header */
518 if (info->emu.mdmreg[REG_T70] & BIT_T70_EXT)
519 memcpy(skb_push(skb, 2), "\1\0", 2);
521 memcpy(skb_push(skb, 4), "\1\0\1\0", 4);
523 skb_queue_tail(&info->xmit_queue, skb);
526 /************************************************************
530 * mostly "stolen" from original Linux-serial.c and friends.
532 ************************************************************/
534 /* The next routine is called once from within timer-interrupt
535 * triggered within isdn_tty_modem_ncarrier(). It calls
536 * isdn_tty_modem_result() to stuff a "NO CARRIER" Message
537 * into the tty's flip-buffer.
540 isdn_tty_modem_do_ncarrier(unsigned long data)
542 modem_info *info = (modem_info *) data;
543 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
546 /* Next routine is called, whenever the DTR-signal is raised.
547 * It checks the ncarrier-flag, and triggers the above routine
548 * when necessary. The ncarrier-flag is set, whenever DTR goes
552 isdn_tty_modem_ncarrier(modem_info * info)
554 if (info->ncarrier) {
555 info->nc_timer.expires = jiffies + HZ;
556 add_timer(&info->nc_timer);
561 * return the usage calculated by si and layer 2 protocol
564 isdn_calc_usage(int si, int l2)
566 int usg = ISDN_USAGE_MODEM;
568 #ifdef CONFIG_ISDN_AUDIO
571 case ISDN_PROTO_L2_MODEM:
572 usg = ISDN_USAGE_MODEM;
574 #ifdef CONFIG_ISDN_TTY_FAX
575 case ISDN_PROTO_L2_FAX:
576 usg = ISDN_USAGE_FAX;
579 case ISDN_PROTO_L2_TRANS:
581 usg = ISDN_USAGE_VOICE;
589 /* isdn_tty_dial() performs dialing of a tty an the necessary
590 * setup of the lower levels before that.
593 isdn_tty_dial(char *n, modem_info * info, atemu * m)
595 int usg = ISDN_USAGE_MODEM;
597 int l2 = m->mdmreg[REG_L2PROT];
603 for (j = 7; j >= 0; j--)
604 if (m->mdmreg[REG_SI1] & (1 << j)) {
608 usg = isdn_calc_usage(si, l2);
609 #ifdef CONFIG_ISDN_AUDIO
611 (l2 != ISDN_PROTO_L2_MODEM)
612 #ifdef CONFIG_ISDN_TTY_FAX
613 && (l2 != ISDN_PROTO_L2_FAX)
616 l2 = ISDN_PROTO_L2_TRANS;
617 usg = ISDN_USAGE_VOICE;
620 m->mdmreg[REG_SI1I] = si2bit[si];
621 spin_lock_irqsave(&dev->lock, flags);
622 i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn);
624 spin_unlock_irqrestore(&dev->lock, flags);
625 isdn_tty_modem_result(RESULT_NO_DIALTONE, info);
627 info->isdn_driver = dev->drvmap[i];
628 info->isdn_channel = dev->chanmap[i];
630 dev->m_idx[i] = info->line;
631 dev->usage[i] |= ISDN_USAGE_OUTGOING;
633 strcpy(info->last_num, n);
635 spin_unlock_irqrestore(&dev->lock, flags);
636 cmd.driver = info->isdn_driver;
637 cmd.arg = info->isdn_channel;
638 cmd.command = ISDN_CMD_CLREAZ;
640 strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver));
641 cmd.driver = info->isdn_driver;
642 cmd.command = ISDN_CMD_SETEAZ;
644 cmd.driver = info->isdn_driver;
645 cmd.command = ISDN_CMD_SETL2;
647 cmd.arg = info->isdn_channel + (l2 << 8);
649 cmd.driver = info->isdn_driver;
650 cmd.command = ISDN_CMD_SETL3;
651 cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8);
652 #ifdef CONFIG_ISDN_TTY_FAX
653 if (l2 == ISDN_PROTO_L2_FAX) {
654 cmd.parm.fax = info->fax;
655 info->fax->direction = ISDN_TTY_FAX_CONN_OUT;
659 cmd.driver = info->isdn_driver;
660 cmd.arg = info->isdn_channel;
661 sprintf(cmd.parm.setup.phone, "%s", n);
662 sprintf(cmd.parm.setup.eazmsn, "%s",
663 isdn_map_eaz2msn(m->msn, info->isdn_driver));
664 cmd.parm.setup.si1 = si;
665 cmd.parm.setup.si2 = m->mdmreg[REG_SI2];
666 cmd.command = ISDN_CMD_DIAL;
668 info->emu.carrierwait = 0;
669 strcpy(dev->num[i], n);
672 isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1);
676 /* isdn_tty_hangup() disassociates a tty from the real
677 * ISDN-line (hangup). The usage-status is cleared
678 * and some cleanup is done also.
681 isdn_tty_modem_hup(modem_info * info, int local)
689 di = info->isdn_driver;
690 ch = info->isdn_channel;
691 if (di < 0 || ch < 0)
694 info->isdn_driver = -1;
695 info->isdn_channel = -1;
697 #ifdef ISDN_DEBUG_MODEM_HUP
698 printk(KERN_DEBUG "Mhup ttyI%d\n", info->line);
701 isdn_tty_flush_buffer(info->tty);
703 info->last_lhup = local;
705 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
707 #ifdef CONFIG_ISDN_AUDIO
709 #ifdef CONFIG_ISDN_TTY_FAX
711 info->fax->phase = ISDN_FAX_PHASE_IDLE;
713 info->emu.vpar[4] = 0;
714 info->emu.vpar[5] = 8;
715 kfree(info->dtmf_state);
716 info->dtmf_state = NULL;
717 kfree(info->silence_state);
718 info->silence_state = NULL;
724 if ((info->msr & UART_MSR_RI) &&
725 (info->emu.mdmreg[REG_RUNG] & BIT_RUNG))
726 isdn_tty_modem_result(RESULT_RUNG, info);
727 info->msr &= ~(UART_MSR_DCD | UART_MSR_RI);
728 info->lsr |= UART_LSR_TEMT;
732 cmd.command = ISDN_CMD_HANGUP;
737 isdn_all_eaz(di, ch);
738 info->emu.mdmreg[REG_RINGCNT] = 0;
739 isdn_free_channel(di, ch, 0);
741 if (info->drv_index >= 0) {
742 dev->m_idx[info->drv_index] = -1;
743 info->drv_index = -1;
748 * Begin of a CAPI like interface, currently used only for
749 * supplementary service (CAPI 2.0 part III)
751 #include <linux/isdn/capicmd.h>
754 isdn_tty_capi_facility(capi_msg *cm) {
755 return(-1); /* dummy */
758 /* isdn_tty_suspend() tries to suspend the current tty connection
761 isdn_tty_suspend(char *id, modem_info * info, atemu * m)
770 #ifdef ISDN_DEBUG_MODEM_SERVICES
771 printk(KERN_DEBUG "Msusp ttyI%d\n", info->line);
774 if ((info->isdn_driver >= 0)) {
775 cmd.parm.cmsg.Length = l+18;
776 cmd.parm.cmsg.Command = CAPI_FACILITY;
777 cmd.parm.cmsg.Subcommand = CAPI_REQ;
778 cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1;
779 cmd.parm.cmsg.para[0] = 3; /* 16 bit 0x0003 suplementary service */
780 cmd.parm.cmsg.para[1] = 0;
781 cmd.parm.cmsg.para[2] = l + 3;
782 cmd.parm.cmsg.para[3] = 4; /* 16 bit 0x0004 Suspend */
783 cmd.parm.cmsg.para[4] = 0;
784 cmd.parm.cmsg.para[5] = l;
785 strncpy(&cmd.parm.cmsg.para[6], id, l);
786 cmd.command = CAPI_PUT_MESSAGE;
787 cmd.driver = info->isdn_driver;
788 cmd.arg = info->isdn_channel;
793 /* isdn_tty_resume() tries to resume a suspended call
794 * setup of the lower levels before that. unfortunatly here is no
795 * checking for compatibility of used protocols implemented by Q931
796 * It does the same things like isdn_tty_dial, the last command
797 * is different, may be we can merge it.
801 isdn_tty_resume(char *id, modem_info * info, atemu * m)
803 int usg = ISDN_USAGE_MODEM;
805 int l2 = m->mdmreg[REG_L2PROT];
813 for (j = 7; j >= 0; j--)
814 if (m->mdmreg[REG_SI1] & (1 << j)) {
818 usg = isdn_calc_usage(si, l2);
819 #ifdef CONFIG_ISDN_AUDIO
821 (l2 != ISDN_PROTO_L2_MODEM)
822 #ifdef CONFIG_ISDN_TTY_FAX
823 && (l2 != ISDN_PROTO_L2_FAX)
826 l2 = ISDN_PROTO_L2_TRANS;
827 usg = ISDN_USAGE_VOICE;
830 m->mdmreg[REG_SI1I] = si2bit[si];
831 spin_lock_irqsave(&dev->lock, flags);
832 i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn);
834 spin_unlock_irqrestore(&dev->lock, flags);
835 isdn_tty_modem_result(RESULT_NO_DIALTONE, info);
837 info->isdn_driver = dev->drvmap[i];
838 info->isdn_channel = dev->chanmap[i];
840 dev->m_idx[i] = info->line;
841 dev->usage[i] |= ISDN_USAGE_OUTGOING;
843 // strcpy(info->last_num, n);
845 spin_unlock_irqrestore(&dev->lock, flags);
846 cmd.driver = info->isdn_driver;
847 cmd.arg = info->isdn_channel;
848 cmd.command = ISDN_CMD_CLREAZ;
850 strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver));
851 cmd.driver = info->isdn_driver;
852 cmd.command = ISDN_CMD_SETEAZ;
854 cmd.driver = info->isdn_driver;
855 cmd.command = ISDN_CMD_SETL2;
857 cmd.arg = info->isdn_channel + (l2 << 8);
859 cmd.driver = info->isdn_driver;
860 cmd.command = ISDN_CMD_SETL3;
861 cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8);
863 cmd.driver = info->isdn_driver;
864 cmd.arg = info->isdn_channel;
865 cmd.parm.cmsg.Length = l+18;
866 cmd.parm.cmsg.Command = CAPI_FACILITY;
867 cmd.parm.cmsg.Subcommand = CAPI_REQ;
868 cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1;
869 cmd.parm.cmsg.para[0] = 3; /* 16 bit 0x0003 suplementary service */
870 cmd.parm.cmsg.para[1] = 0;
871 cmd.parm.cmsg.para[2] = l+3;
872 cmd.parm.cmsg.para[3] = 5; /* 16 bit 0x0005 Resume */
873 cmd.parm.cmsg.para[4] = 0;
874 cmd.parm.cmsg.para[5] = l;
875 strncpy(&cmd.parm.cmsg.para[6], id, l);
876 cmd.command =CAPI_PUT_MESSAGE;
878 // strcpy(dev->num[i], n);
881 isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1);
885 /* isdn_tty_send_msg() sends a message to a HL driver
886 * This is used for hybrid modem cards to send AT commands to it
890 isdn_tty_send_msg(modem_info * info, atemu * m, char *msg)
892 int usg = ISDN_USAGE_MODEM;
894 int l2 = m->mdmreg[REG_L2PROT];
903 isdn_tty_modem_result(RESULT_ERROR, info);
906 for (j = 7; j >= 0; j--)
907 if (m->mdmreg[REG_SI1] & (1 << j)) {
911 usg = isdn_calc_usage(si, l2);
912 #ifdef CONFIG_ISDN_AUDIO
914 (l2 != ISDN_PROTO_L2_MODEM)
915 #ifdef CONFIG_ISDN_TTY_FAX
916 && (l2 != ISDN_PROTO_L2_FAX)
919 l2 = ISDN_PROTO_L2_TRANS;
920 usg = ISDN_USAGE_VOICE;
923 m->mdmreg[REG_SI1I] = si2bit[si];
924 spin_lock_irqsave(&dev->lock, flags);
925 i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn);
927 spin_unlock_irqrestore(&dev->lock, flags);
928 isdn_tty_modem_result(RESULT_NO_DIALTONE, info);
930 info->isdn_driver = dev->drvmap[i];
931 info->isdn_channel = dev->chanmap[i];
933 dev->m_idx[i] = info->line;
934 dev->usage[i] |= ISDN_USAGE_OUTGOING;
937 spin_unlock_irqrestore(&dev->lock, flags);
938 cmd.driver = info->isdn_driver;
939 cmd.arg = info->isdn_channel;
940 cmd.command = ISDN_CMD_CLREAZ;
942 strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver));
943 cmd.driver = info->isdn_driver;
944 cmd.command = ISDN_CMD_SETEAZ;
946 cmd.driver = info->isdn_driver;
947 cmd.command = ISDN_CMD_SETL2;
949 cmd.arg = info->isdn_channel + (l2 << 8);
951 cmd.driver = info->isdn_driver;
952 cmd.command = ISDN_CMD_SETL3;
953 cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8);
955 cmd.driver = info->isdn_driver;
956 cmd.arg = info->isdn_channel;
957 cmd.parm.cmsg.Length = l+14;
958 cmd.parm.cmsg.Command = CAPI_MANUFACTURER;
959 cmd.parm.cmsg.Subcommand = CAPI_REQ;
960 cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1;
961 cmd.parm.cmsg.para[0] = l+1;
962 strncpy(&cmd.parm.cmsg.para[1], msg, l);
963 cmd.parm.cmsg.para[l+1] = 0xd;
964 cmd.command =CAPI_PUT_MESSAGE;
965 /* info->dialing = 1;
966 strcpy(dev->num[i], n);
974 isdn_tty_paranoia_check(modem_info *info, char *name, const char *routine)
976 #ifdef MODEM_PARANOIA_CHECK
978 printk(KERN_WARNING "isdn_tty: null info_struct for %s in %s\n",
982 if (info->magic != ISDN_ASYNC_MAGIC) {
983 printk(KERN_WARNING "isdn_tty: bad magic for modem struct %s in %s\n",
992 * This routine is called to set the UART divisor registers to match
993 * the specified baud rate for a serial port.
996 isdn_tty_change_speed(modem_info * info)
1004 if (!info->tty || !info->tty->termios)
1006 cflag = info->tty->termios->c_cflag;
1008 quot = i = cflag & CBAUD;
1012 info->tty->termios->c_cflag &= ~CBAUDEX;
1017 info->mcr |= UART_MCR_DTR;
1018 isdn_tty_modem_ncarrier(info);
1020 info->mcr &= ~UART_MCR_DTR;
1021 if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) {
1022 #ifdef ISDN_DEBUG_MODEM_HUP
1023 printk(KERN_DEBUG "Mhup in changespeed\n");
1027 isdn_tty_modem_reset_regs(info, 0);
1028 isdn_tty_modem_hup(info, 1);
1032 /* byte size and parity */
1033 cval = cflag & (CSIZE | CSTOPB);
1036 cval |= UART_LCR_PARITY;
1037 if (!(cflag & PARODD))
1038 cval |= UART_LCR_EPAR;
1041 /* CTS flow control flag and modem status interrupts */
1042 if (cflag & CRTSCTS) {
1043 info->flags |= ISDN_ASYNC_CTS_FLOW;
1045 info->flags &= ~ISDN_ASYNC_CTS_FLOW;
1047 info->flags &= ~ISDN_ASYNC_CHECK_CD;
1049 info->flags |= ISDN_ASYNC_CHECK_CD;
1054 isdn_tty_startup(modem_info * info)
1056 if (info->flags & ISDN_ASYNC_INITIALIZED)
1058 isdn_lock_drivers();
1059 #ifdef ISDN_DEBUG_MODEM_OPEN
1060 printk(KERN_DEBUG "starting up ttyi%d ...\n", info->line);
1063 * Now, initialize the UART
1065 info->mcr = UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2;
1067 clear_bit(TTY_IO_ERROR, &info->tty->flags);
1069 * and set the speed of the serial port
1071 isdn_tty_change_speed(info);
1073 info->flags |= ISDN_ASYNC_INITIALIZED;
1074 info->msr |= (UART_MSR_DSR | UART_MSR_CTS);
1075 info->send_outstanding = 0;
1080 * This routine will shutdown a serial port; interrupts are disabled, and
1081 * DTR is dropped if the hangup on close termio flag is on.
1084 isdn_tty_shutdown(modem_info * info)
1086 if (!(info->flags & ISDN_ASYNC_INITIALIZED))
1088 #ifdef ISDN_DEBUG_MODEM_OPEN
1089 printk(KERN_DEBUG "Shutting down isdnmodem port %d ....\n", info->line);
1091 isdn_unlock_drivers();
1092 info->msr &= ~UART_MSR_RI;
1093 if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) {
1094 info->mcr &= ~(UART_MCR_DTR | UART_MCR_RTS);
1095 if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) {
1096 isdn_tty_modem_reset_regs(info, 0);
1097 #ifdef ISDN_DEBUG_MODEM_HUP
1098 printk(KERN_DEBUG "Mhup in isdn_tty_shutdown\n");
1100 isdn_tty_modem_hup(info, 1);
1104 set_bit(TTY_IO_ERROR, &info->tty->flags);
1106 info->flags &= ~ISDN_ASYNC_INITIALIZED;
1109 /* isdn_tty_write() is the main send-routine. It is called from the upper
1110 * levels within the kernel to perform sending data. Depending on the
1111 * online-flag it either directs output to the at-command-interpreter or
1112 * to the lower level. Additional tasks done here:
1113 * - If online, check for escape-sequence (+++)
1114 * - If sending audio-data, call isdn_tty_DLEdown() to parse DLE-codes.
1115 * - If receiving audio-data, call isdn_tty_end_vrx() to abort if needed.
1116 * - If dialing, abort dial.
1119 isdn_tty_write(struct tty_struct *tty, const u_char * buf, int count)
1123 modem_info *info = (modem_info *) tty->driver_data;
1124 atemu *m = &info->emu;
1126 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_write"))
1128 /* See isdn_tty_senddown() */
1129 atomic_inc(&info->xmit_lock);
1132 if (c > info->xmit_size - info->xmit_count)
1133 c = info->xmit_size - info->xmit_count;
1134 if (info->isdn_driver >= 0 && c > dev->drv[info->isdn_driver]->maxbufsize)
1135 c = dev->drv[info->isdn_driver]->maxbufsize;
1138 if ((info->online > 1)
1139 #ifdef CONFIG_ISDN_AUDIO
1140 || (info->vonline & 3)
1143 #ifdef CONFIG_ISDN_AUDIO
1146 isdn_tty_check_esc(buf, m->mdmreg[REG_ESC], c,
1149 memcpy(&(info->xmit_buf[info->xmit_count]), buf, c);
1150 #ifdef CONFIG_ISDN_AUDIO
1151 if (info->vonline) {
1152 int cc = isdn_tty_handleDLEdown(info, m, c);
1153 if (info->vonline & 2) {
1155 /* If DLE decoding results in zero-transmit, but
1156 * c originally was non-zero, do a wakeup.
1159 info->msr |= UART_MSR_CTS;
1160 info->lsr |= UART_LSR_TEMT;
1162 info->xmit_count += cc;
1164 if ((info->vonline & 3) == 1) {
1165 /* Do NOT handle Ctrl-Q or Ctrl-S
1166 * when in full-duplex audio mode.
1168 if (isdn_tty_end_vrx(buf, c)) {
1169 info->vonline &= ~1;
1170 #ifdef ISDN_DEBUG_MODEM_VOICE
1172 "got !^Q/^S, send DLE-ETX,VCON on ttyI%d\n",
1175 isdn_tty_at_cout("\020\003\r\nVCON\r\n", info);
1179 if (TTY_IS_FCLASS1(info)) {
1180 int cc = isdn_tty_handleDLEdown(info, m, c);
1182 if (info->vonline & 4) { /* ETX seen */
1185 c.command = ISDN_CMD_FAXCMD;
1186 c.driver = info->isdn_driver;
1187 c.arg = info->isdn_channel;
1188 c.parm.aux.cmd = ISDN_FAX_CLASS1_CTRL;
1189 c.parm.aux.subcmd = ETX;
1193 #ifdef ISDN_DEBUG_MODEM_VOICE
1194 printk(KERN_DEBUG "fax dle cc/c %d/%d\n", cc, c);
1196 info->xmit_count += cc;
1199 info->xmit_count += c;
1201 info->msr |= UART_MSR_CTS;
1202 info->lsr |= UART_LSR_TEMT;
1203 if (info->dialing) {
1205 #ifdef ISDN_DEBUG_MODEM_HUP
1206 printk(KERN_DEBUG "Mhup in isdn_tty_write\n");
1208 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
1209 isdn_tty_modem_hup(info, 1);
1211 c = isdn_tty_edit_at(buf, c, info);
1217 atomic_dec(&info->xmit_lock);
1218 if ((info->xmit_count) || !skb_queue_empty(&info->xmit_queue)) {
1219 if (m->mdmreg[REG_DXMT] & BIT_DXMT) {
1220 isdn_tty_senddown(info);
1221 isdn_tty_tint(info);
1223 isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, 1);
1229 isdn_tty_write_room(struct tty_struct *tty)
1231 modem_info *info = (modem_info *) tty->driver_data;
1234 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_write_room"))
1237 return info->xmit_size;
1238 ret = info->xmit_size - info->xmit_count;
1239 return (ret < 0) ? 0 : ret;
1243 isdn_tty_chars_in_buffer(struct tty_struct *tty)
1245 modem_info *info = (modem_info *) tty->driver_data;
1247 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_chars_in_buffer"))
1251 return (info->xmit_count);
1255 isdn_tty_flush_buffer(struct tty_struct *tty)
1262 info = (modem_info *) tty->driver_data;
1263 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_flush_buffer")) {
1266 isdn_tty_cleanup_xmit(info);
1267 info->xmit_count = 0;
1268 wake_up_interruptible(&tty->write_wait);
1273 isdn_tty_flush_chars(struct tty_struct *tty)
1275 modem_info *info = (modem_info *) tty->driver_data;
1277 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_flush_chars"))
1279 if ((info->xmit_count) || !skb_queue_empty(&info->xmit_queue))
1280 isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, 1);
1284 * ------------------------------------------------------------
1285 * isdn_tty_throttle()
1287 * This routine is called by the upper-layer tty layer to signal that
1288 * incoming characters should be throttled.
1289 * ------------------------------------------------------------
1292 isdn_tty_throttle(struct tty_struct *tty)
1294 modem_info *info = (modem_info *) tty->driver_data;
1296 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_throttle"))
1299 info->x_char = STOP_CHAR(tty);
1300 info->mcr &= ~UART_MCR_RTS;
1304 isdn_tty_unthrottle(struct tty_struct *tty)
1306 modem_info *info = (modem_info *) tty->driver_data;
1308 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_unthrottle"))
1314 info->x_char = START_CHAR(tty);
1316 info->mcr |= UART_MCR_RTS;
1320 * ------------------------------------------------------------
1321 * isdn_tty_ioctl() and friends
1322 * ------------------------------------------------------------
1326 * isdn_tty_get_lsr_info - get line status register info
1328 * Purpose: Let user call ioctl() to get info when the UART physically
1329 * is emptied. On bus types like RS485, the transmitter must
1330 * release the bus after transmitting. This must be done when
1331 * the transmit shift register is empty, not be done when the
1332 * transmit holding register is empty. This functionality
1333 * allows RS485 driver to be written in user space.
1336 isdn_tty_get_lsr_info(modem_info * info, uint __user * value)
1342 result = ((status & UART_LSR_TEMT) ? TIOCSER_TEMT : 0);
1343 return put_user(result, value);
1348 isdn_tty_tiocmget(struct tty_struct *tty, struct file *file)
1350 modem_info *info = (modem_info *) tty->driver_data;
1351 u_char control, status;
1353 if (isdn_tty_paranoia_check(info, tty->name, __FUNCTION__))
1355 if (tty->flags & (1 << TTY_IO_ERROR))
1358 #ifdef ISDN_DEBUG_MODEM_IOCTL
1359 printk(KERN_DEBUG "ttyI%d ioctl TIOCMGET\n", info->line);
1362 control = info->mcr;
1364 return ((control & UART_MCR_RTS) ? TIOCM_RTS : 0)
1365 | ((control & UART_MCR_DTR) ? TIOCM_DTR : 0)
1366 | ((status & UART_MSR_DCD) ? TIOCM_CAR : 0)
1367 | ((status & UART_MSR_RI) ? TIOCM_RNG : 0)
1368 | ((status & UART_MSR_DSR) ? TIOCM_DSR : 0)
1369 | ((status & UART_MSR_CTS) ? TIOCM_CTS : 0);
1373 isdn_tty_tiocmset(struct tty_struct *tty, struct file *file,
1374 unsigned int set, unsigned int clear)
1376 modem_info *info = (modem_info *) tty->driver_data;
1378 if (isdn_tty_paranoia_check(info, tty->name, __FUNCTION__))
1380 if (tty->flags & (1 << TTY_IO_ERROR))
1383 #ifdef ISDN_DEBUG_MODEM_IOCTL
1384 printk(KERN_DEBUG "ttyI%d ioctl TIOCMxxx: %x %x\n", info->line, set, clear);
1387 if (set & TIOCM_RTS)
1388 info->mcr |= UART_MCR_RTS;
1389 if (set & TIOCM_DTR) {
1390 info->mcr |= UART_MCR_DTR;
1391 isdn_tty_modem_ncarrier(info);
1394 if (clear & TIOCM_RTS)
1395 info->mcr &= ~UART_MCR_RTS;
1396 if (clear & TIOCM_DTR) {
1397 info->mcr &= ~UART_MCR_DTR;
1398 if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) {
1399 isdn_tty_modem_reset_regs(info, 0);
1400 #ifdef ISDN_DEBUG_MODEM_HUP
1401 printk(KERN_DEBUG "Mhup in TIOCMSET\n");
1405 isdn_tty_modem_hup(info, 1);
1412 isdn_tty_ioctl(struct tty_struct *tty, struct file *file,
1413 uint cmd, ulong arg)
1415 modem_info *info = (modem_info *) tty->driver_data;
1418 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_ioctl"))
1420 if (tty->flags & (1 << TTY_IO_ERROR))
1423 case TCSBRK: /* SVID version: non-zero arg --> no break */
1424 #ifdef ISDN_DEBUG_MODEM_IOCTL
1425 printk(KERN_DEBUG "ttyI%d ioctl TCSBRK\n", info->line);
1427 retval = tty_check_change(tty);
1430 tty_wait_until_sent(tty, 0);
1432 case TCSBRKP: /* support for POSIX tcsendbreak() */
1433 #ifdef ISDN_DEBUG_MODEM_IOCTL
1434 printk(KERN_DEBUG "ttyI%d ioctl TCSBRKP\n", info->line);
1436 retval = tty_check_change(tty);
1439 tty_wait_until_sent(tty, 0);
1442 #ifdef ISDN_DEBUG_MODEM_IOCTL
1443 printk(KERN_DEBUG "ttyI%d ioctl TIOCGSOFTCAR\n", info->line);
1445 return put_user(C_CLOCAL(tty) ? 1 : 0, (ulong __user *) arg);
1447 #ifdef ISDN_DEBUG_MODEM_IOCTL
1448 printk(KERN_DEBUG "ttyI%d ioctl TIOCSSOFTCAR\n", info->line);
1450 if (get_user(arg, (ulong __user *) arg))
1452 tty->termios->c_cflag =
1453 ((tty->termios->c_cflag & ~CLOCAL) |
1454 (arg ? CLOCAL : 0));
1456 case TIOCSERGETLSR: /* Get line status register */
1457 #ifdef ISDN_DEBUG_MODEM_IOCTL
1458 printk(KERN_DEBUG "ttyI%d ioctl TIOCSERGETLSR\n", info->line);
1460 return isdn_tty_get_lsr_info(info, (uint __user *) arg);
1462 #ifdef ISDN_DEBUG_MODEM_IOCTL
1463 printk(KERN_DEBUG "UNKNOWN ioctl 0x%08x on ttyi%d\n", cmd, info->line);
1465 return -ENOIOCTLCMD;
1471 isdn_tty_set_termios(struct tty_struct *tty, struct termios *old_termios)
1473 modem_info *info = (modem_info *) tty->driver_data;
1476 isdn_tty_change_speed(info);
1478 if (tty->termios->c_cflag == old_termios->c_cflag)
1480 isdn_tty_change_speed(info);
1481 if ((old_termios->c_cflag & CRTSCTS) &&
1482 !(tty->termios->c_cflag & CRTSCTS)) {
1483 tty->hw_stopped = 0;
1489 * ------------------------------------------------------------
1490 * isdn_tty_open() and friends
1491 * ------------------------------------------------------------
1494 isdn_tty_block_til_ready(struct tty_struct *tty, struct file *filp, modem_info * info)
1496 DECLARE_WAITQUEUE(wait, NULL);
1501 * If the device is in the middle of being closed, then block
1502 * until it's done, and then try again.
1504 if (tty_hung_up_p(filp) ||
1505 (info->flags & ISDN_ASYNC_CLOSING)) {
1506 if (info->flags & ISDN_ASYNC_CLOSING)
1507 interruptible_sleep_on(&info->close_wait);
1508 #ifdef MODEM_DO_RESTART
1509 if (info->flags & ISDN_ASYNC_HUP_NOTIFY)
1512 return -ERESTARTSYS;
1518 * If non-blocking mode is set, then make the check up front
1521 if ((filp->f_flags & O_NONBLOCK) ||
1522 (tty->flags & (1 << TTY_IO_ERROR))) {
1523 if (info->flags & ISDN_ASYNC_CALLOUT_ACTIVE)
1525 info->flags |= ISDN_ASYNC_NORMAL_ACTIVE;
1528 if (info->flags & ISDN_ASYNC_CALLOUT_ACTIVE) {
1529 if (info->normal_termios.c_cflag & CLOCAL)
1532 if (tty->termios->c_cflag & CLOCAL)
1536 * Block waiting for the carrier detect and the line to become
1537 * free (i.e., not in use by the callout). While we are in
1538 * this loop, info->count is dropped by one, so that
1539 * isdn_tty_close() knows when to free things. We restore it upon
1540 * exit, either normal or abnormal.
1543 add_wait_queue(&info->open_wait, &wait);
1544 #ifdef ISDN_DEBUG_MODEM_OPEN
1545 printk(KERN_DEBUG "isdn_tty_block_til_ready before block: ttyi%d, count = %d\n",
1546 info->line, info->count);
1548 if (!(tty_hung_up_p(filp)))
1550 info->blocked_open++;
1552 set_current_state(TASK_INTERRUPTIBLE);
1553 if (tty_hung_up_p(filp) ||
1554 !(info->flags & ISDN_ASYNC_INITIALIZED)) {
1555 #ifdef MODEM_DO_RESTART
1556 if (info->flags & ISDN_ASYNC_HUP_NOTIFY)
1559 retval = -ERESTARTSYS;
1565 if (!(info->flags & ISDN_ASYNC_CALLOUT_ACTIVE) &&
1566 !(info->flags & ISDN_ASYNC_CLOSING) &&
1567 (do_clocal || (info->msr & UART_MSR_DCD))) {
1570 if (signal_pending(current)) {
1571 retval = -ERESTARTSYS;
1574 #ifdef ISDN_DEBUG_MODEM_OPEN
1575 printk(KERN_DEBUG "isdn_tty_block_til_ready blocking: ttyi%d, count = %d\n",
1576 info->line, info->count);
1580 current->state = TASK_RUNNING;
1581 remove_wait_queue(&info->open_wait, &wait);
1582 if (!tty_hung_up_p(filp))
1584 info->blocked_open--;
1585 #ifdef ISDN_DEBUG_MODEM_OPEN
1586 printk(KERN_DEBUG "isdn_tty_block_til_ready after blocking: ttyi%d, count = %d\n",
1587 info->line, info->count);
1591 info->flags |= ISDN_ASYNC_NORMAL_ACTIVE;
1596 * This routine is called whenever a serial port is opened. It
1597 * enables interrupts for a serial port, linking in its async structure into
1598 * the IRQ chain. It also performs the serial-specific
1599 * initialization for the tty structure.
1602 isdn_tty_open(struct tty_struct *tty, struct file *filp)
1608 if (line < 0 || line > ISDN_MAX_CHANNELS)
1610 info = &dev->mdm.info[line];
1611 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_open"))
1613 if (!try_module_get(info->owner)) {
1614 printk(KERN_WARNING "%s: cannot reserve module\n", __FUNCTION__);
1617 #ifdef ISDN_DEBUG_MODEM_OPEN
1618 printk(KERN_DEBUG "isdn_tty_open %s, count = %d\n", tty->name,
1622 tty->driver_data = info;
1625 * Start up serial port
1627 retval = isdn_tty_startup(info);
1629 #ifdef ISDN_DEBUG_MODEM_OPEN
1630 printk(KERN_DEBUG "isdn_tty_open return after startup\n");
1632 module_put(info->owner);
1635 retval = isdn_tty_block_til_ready(tty, filp, info);
1637 #ifdef ISDN_DEBUG_MODEM_OPEN
1638 printk(KERN_DEBUG "isdn_tty_open return after isdn_tty_block_til_ready \n");
1640 module_put(info->owner);
1643 #ifdef ISDN_DEBUG_MODEM_OPEN
1644 printk(KERN_DEBUG "isdn_tty_open ttyi%d successful...\n", info->line);
1647 #ifdef ISDN_DEBUG_MODEM_OPEN
1648 printk(KERN_DEBUG "isdn_tty_open normal exit\n");
1654 isdn_tty_close(struct tty_struct *tty, struct file *filp)
1656 modem_info *info = (modem_info *) tty->driver_data;
1659 if (!info || isdn_tty_paranoia_check(info, tty->name, "isdn_tty_close"))
1661 if (tty_hung_up_p(filp)) {
1662 #ifdef ISDN_DEBUG_MODEM_OPEN
1663 printk(KERN_DEBUG "isdn_tty_close return after tty_hung_up_p\n");
1667 if ((tty->count == 1) && (info->count != 1)) {
1669 * Uh, oh. tty->count is 1, which means that the tty
1670 * structure will be freed. Info->count should always
1671 * be one in these conditions. If it's greater than
1672 * one, we've got real problems, since it means the
1673 * serial port won't be shutdown.
1675 printk(KERN_ERR "isdn_tty_close: bad port count; tty->count is 1, "
1676 "info->count is %d\n", info->count);
1679 if (--info->count < 0) {
1680 printk(KERN_ERR "isdn_tty_close: bad port count for ttyi%d: %d\n",
1681 info->line, info->count);
1685 #ifdef ISDN_DEBUG_MODEM_OPEN
1686 printk(KERN_DEBUG "isdn_tty_close after info->count != 0\n");
1690 info->flags |= ISDN_ASYNC_CLOSING;
1692 * Save the termios structure, since this port may have
1693 * separate termios for callout and dialin.
1695 if (info->flags & ISDN_ASYNC_NORMAL_ACTIVE)
1696 info->normal_termios = *tty->termios;
1697 if (info->flags & ISDN_ASYNC_CALLOUT_ACTIVE)
1698 info->callout_termios = *tty->termios;
1702 * At this point we stop accepting input. To do this, we
1703 * disable the receive line status interrupts, and tell the
1704 * interrupt driver to stop checking the data ready bit in the
1705 * line status register.
1707 if (info->flags & ISDN_ASYNC_INITIALIZED) {
1708 tty_wait_until_sent(tty, 3000); /* 30 seconds timeout */
1710 * Before we drop DTR, make sure the UART transmitter
1711 * has completely drained; this is especially
1712 * important if there is a transmit FIFO!
1714 timeout = jiffies + HZ;
1715 while (!(info->lsr & UART_LSR_TEMT)) {
1716 schedule_timeout_interruptible(20);
1717 if (time_after(jiffies,timeout))
1722 isdn_tty_shutdown(info);
1724 if (tty->driver->flush_buffer)
1725 tty->driver->flush_buffer(tty);
1726 tty_ldisc_flush(tty);
1730 module_put(info->owner);
1731 if (info->blocked_open) {
1732 msleep_interruptible(500);
1733 wake_up_interruptible(&info->open_wait);
1735 info->flags &= ~(ISDN_ASYNC_NORMAL_ACTIVE | ISDN_ASYNC_CLOSING);
1736 wake_up_interruptible(&info->close_wait);
1737 #ifdef ISDN_DEBUG_MODEM_OPEN
1738 printk(KERN_DEBUG "isdn_tty_close normal exit\n");
1743 * isdn_tty_hangup() --- called by tty_hangup() when a hangup is signaled.
1746 isdn_tty_hangup(struct tty_struct *tty)
1748 modem_info *info = (modem_info *) tty->driver_data;
1750 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_hangup"))
1752 isdn_tty_shutdown(info);
1754 info->flags &= ~(ISDN_ASYNC_NORMAL_ACTIVE | ISDN_ASYNC_CALLOUT_ACTIVE);
1756 wake_up_interruptible(&info->open_wait);
1759 /* This routine initializes all emulator-data.
1762 isdn_tty_reset_profile(atemu * m)
1775 m->profile[11] = 70;
1776 m->profile[12] = 0x45;
1778 m->profile[14] = ISDN_PROTO_L2_X75I;
1779 m->profile[15] = ISDN_PROTO_L3_TRANS;
1780 m->profile[16] = ISDN_SERIAL_XMIT_SIZE / 16;
1781 m->profile[17] = ISDN_MODEM_WINSIZE;
1790 #ifdef CONFIG_ISDN_AUDIO
1792 isdn_tty_modem_reset_vpar(atemu * m)
1794 m->vpar[0] = 2; /* Voice-device (2 = phone line) */
1795 m->vpar[1] = 0; /* Silence detection level (0 = none ) */
1796 m->vpar[2] = 70; /* Silence interval (7 sec. ) */
1797 m->vpar[3] = 2; /* Compression type (1 = ADPCM-2 ) */
1798 m->vpar[4] = 0; /* DTMF detection level (0 = softcode ) */
1799 m->vpar[5] = 8; /* DTMF interval (8 * 5 ms. ) */
1803 #ifdef CONFIG_ISDN_TTY_FAX
1805 isdn_tty_modem_reset_faxpar(modem_info * info)
1807 T30_s *f = info->fax;
1810 f->phase = ISDN_FAX_PHASE_IDLE;
1812 f->resolution = 1; /* fine */
1813 f->rate = 5; /* 14400 bit/s */
1820 memset(&f->id[0], 32, FAXIDLEN - 1);
1821 f->id[FAXIDLEN - 1] = 0;
1832 memset(&f->pollid[0], 32, FAXIDLEN - 1);
1833 f->pollid[FAXIDLEN - 1] = 0;
1838 isdn_tty_modem_reset_regs(modem_info * info, int force)
1840 atemu *m = &info->emu;
1841 if ((m->mdmreg[REG_DTRR] & BIT_DTRR) || force) {
1842 memcpy(m->mdmreg, m->profile, ISDN_MODEM_NUMREG);
1843 memcpy(m->msn, m->pmsn, ISDN_MSNLEN);
1844 memcpy(m->lmsn, m->plmsn, ISDN_LMSNLEN);
1845 info->xmit_size = m->mdmreg[REG_PSIZE] * 16;
1847 #ifdef CONFIG_ISDN_AUDIO
1848 isdn_tty_modem_reset_vpar(m);
1850 #ifdef CONFIG_ISDN_TTY_FAX
1851 isdn_tty_modem_reset_faxpar(info);
1857 modem_write_profile(atemu * m)
1859 memcpy(m->profile, m->mdmreg, ISDN_MODEM_NUMREG);
1860 memcpy(m->pmsn, m->msn, ISDN_MSNLEN);
1861 memcpy(m->plmsn, m->lmsn, ISDN_LMSNLEN);
1863 send_sig(SIGIO, dev->profd, 1);
1866 static struct tty_operations modem_ops = {
1867 .open = isdn_tty_open,
1868 .close = isdn_tty_close,
1869 .write = isdn_tty_write,
1870 .flush_chars = isdn_tty_flush_chars,
1871 .write_room = isdn_tty_write_room,
1872 .chars_in_buffer = isdn_tty_chars_in_buffer,
1873 .flush_buffer = isdn_tty_flush_buffer,
1874 .ioctl = isdn_tty_ioctl,
1875 .throttle = isdn_tty_throttle,
1876 .unthrottle = isdn_tty_unthrottle,
1877 .set_termios = isdn_tty_set_termios,
1878 .hangup = isdn_tty_hangup,
1879 .tiocmget = isdn_tty_tiocmget,
1880 .tiocmset = isdn_tty_tiocmset,
1884 isdn_tty_modem_init(void)
1891 m->tty_modem = alloc_tty_driver(ISDN_MAX_CHANNELS);
1894 m->tty_modem->name = "ttyI";
1895 m->tty_modem->devfs_name = "isdn/ttyI";
1896 m->tty_modem->major = ISDN_TTY_MAJOR;
1897 m->tty_modem->minor_start = 0;
1898 m->tty_modem->type = TTY_DRIVER_TYPE_SERIAL;
1899 m->tty_modem->subtype = SERIAL_TYPE_NORMAL;
1900 m->tty_modem->init_termios = tty_std_termios;
1901 m->tty_modem->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
1902 m->tty_modem->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
1903 m->tty_modem->driver_name = "isdn_tty";
1904 tty_set_operations(m->tty_modem, &modem_ops);
1905 retval = tty_register_driver(m->tty_modem);
1907 printk(KERN_WARNING "isdn_tty: Couldn't register modem-device\n");
1910 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
1912 #ifdef CONFIG_ISDN_TTY_FAX
1913 if (!(info->fax = kmalloc(sizeof(T30_s), GFP_KERNEL))) {
1914 printk(KERN_ERR "Could not allocate fax t30-buffer\n");
1916 goto err_unregister;
1920 info->owner = THIS_MODULE;
1922 spin_lock_init(&info->readlock);
1923 init_MUTEX(&info->write_sem);
1924 sprintf(info->last_cause, "0000");
1925 sprintf(info->last_num, "none");
1927 info->last_lhup = 1;
1930 isdn_tty_reset_profile(&info->emu);
1931 isdn_tty_modem_reset_regs(info, 1);
1932 info->magic = ISDN_ASYNC_MAGIC;
1937 info->blocked_open = 0;
1938 init_waitqueue_head(&info->open_wait);
1939 init_waitqueue_head(&info->close_wait);
1940 info->isdn_driver = -1;
1941 info->isdn_channel = -1;
1942 info->drv_index = -1;
1943 info->xmit_size = ISDN_SERIAL_XMIT_SIZE;
1944 init_timer(&info->nc_timer);
1945 info->nc_timer.function = isdn_tty_modem_do_ncarrier;
1946 info->nc_timer.data = (unsigned long) info;
1947 skb_queue_head_init(&info->xmit_queue);
1948 #ifdef CONFIG_ISDN_AUDIO
1949 skb_queue_head_init(&info->dtmf_queue);
1951 if (!(info->xmit_buf = kmalloc(ISDN_SERIAL_XMIT_MAX + 5, GFP_KERNEL))) {
1952 printk(KERN_ERR "Could not allocate modem xmit-buffer\n");
1954 goto err_unregister;
1956 /* Make room for T.70 header */
1957 info->xmit_buf += 4;
1961 for (i--; i >= 0; i--) {
1963 #ifdef CONFIG_ISDN_TTY_FAX
1966 kfree(info->xmit_buf - 4);
1968 tty_unregister_driver(m->tty_modem);
1970 put_tty_driver(m->tty_modem);
1971 m->tty_modem = NULL;
1981 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
1982 info = &dev->mdm.info[i];
1983 isdn_tty_cleanup_xmit(info);
1984 #ifdef CONFIG_ISDN_TTY_FAX
1987 kfree(info->xmit_buf - 4);
1989 tty_unregister_driver(dev->mdm.tty_modem);
1990 put_tty_driver(dev->mdm.tty_modem);
1991 dev->mdm.tty_modem = NULL;
1996 * isdn_tty_match_icall(char *MSN, atemu *tty_emulator, int dev_idx)
1997 * match the MSN against the MSNs (glob patterns) defined for tty_emulator,
1998 * and return 0 for match, 1 for no match, 2 if MSN could match if longer.
2002 isdn_tty_match_icall(char *cid, atemu *emu, int di)
2004 #ifdef ISDN_DEBUG_MODEM_ICALL
2005 printk(KERN_DEBUG "m_fi: msn=%s lmsn=%s mmsn=%s mreg[SI1]=%d mreg[SI2]=%d\n",
2006 emu->msn, emu->lmsn, isdn_map_eaz2msn(emu->msn, di),
2007 emu->mdmreg[REG_SI1], emu->mdmreg[REG_SI2]);
2009 if (strlen(emu->lmsn)) {
2010 char *p = emu->lmsn;
2016 if ((q = strchr(p, ';')))
2018 if ((tmp = isdn_msncmp(cid, isdn_map_eaz2msn(p, di))) > ret)
2020 #ifdef ISDN_DEBUG_MODEM_ICALL
2021 printk(KERN_DEBUG "m_fi: lmsnX=%s mmsn=%s -> tmp=%d\n",
2022 p, isdn_map_eaz2msn(emu->msn, di), tmp);
2037 tmp = isdn_msncmp(cid, isdn_map_eaz2msn(emu->msn, di));
2038 #ifdef ISDN_DEBUG_MODEM_ICALL
2039 printk(KERN_DEBUG "m_fi: mmsn=%s -> tmp=%d\n",
2040 isdn_map_eaz2msn(emu->msn, di), tmp);
2047 * An incoming call-request has arrived.
2048 * Search the tty-devices for an appropriate device and bind
2049 * it to the ISDN-Channel.
2052 * 0 = No matching device found.
2053 * 1 = A matching device found.
2054 * 3 = No match found, but eventually would match, if
2058 isdn_tty_find_icall(int di, int ch, setup_parm *setup)
2069 if (!setup->phone[0]) {
2071 printk(KERN_INFO "isdn_tty: Incoming call without OAD, assuming '0'\n");
2074 si1 = (int) setup->si1;
2075 si2 = (int) setup->si2;
2076 if (!setup->eazmsn[0]) {
2077 printk(KERN_WARNING "isdn_tty: Incoming call without CPN, assuming '0'\n");
2080 eaz = setup->eazmsn;
2081 #ifdef ISDN_DEBUG_MODEM_ICALL
2082 printk(KERN_DEBUG "m_fi: eaz=%s si1=%d si2=%d\n", eaz, si1, si2);
2085 spin_lock_irqsave(&dev->lock, flags);
2086 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
2087 modem_info *info = &dev->mdm.info[i];
2089 if (info->count == 0)
2091 if ((info->emu.mdmreg[REG_SI1] & si2bit[si1]) && /* SI1 is matching */
2092 (info->emu.mdmreg[REG_SI2] == si2)) { /* SI2 is matching */
2093 idx = isdn_dc2minor(di, ch);
2094 #ifdef ISDN_DEBUG_MODEM_ICALL
2095 printk(KERN_DEBUG "m_fi: match1 wret=%d\n", wret);
2096 printk(KERN_DEBUG "m_fi: idx=%d flags=%08lx drv=%d ch=%d usg=%d\n", idx,
2097 info->flags, info->isdn_driver, info->isdn_channel,
2101 #ifndef FIX_FILE_TRANSFER
2102 (info->flags & ISDN_ASYNC_NORMAL_ACTIVE) &&
2104 (info->isdn_driver == -1) &&
2105 (info->isdn_channel == -1) &&
2106 (USG_NONE(dev->usage[idx]))) {
2109 if ((matchret = isdn_tty_match_icall(eaz, &info->emu, di)) > wret)
2111 if (!matchret) { /* EAZ is matching */
2112 info->isdn_driver = di;
2113 info->isdn_channel = ch;
2114 info->drv_index = idx;
2115 dev->m_idx[idx] = info->line;
2116 dev->usage[idx] &= ISDN_USAGE_EXCLUSIVE;
2117 dev->usage[idx] |= isdn_calc_usage(si1, info->emu.mdmreg[REG_L2PROT]);
2118 strcpy(dev->num[idx], nr);
2119 strcpy(info->emu.cpn, eaz);
2120 info->emu.mdmreg[REG_SI1I] = si2bit[si1];
2121 info->emu.mdmreg[REG_PLAN] = setup->plan;
2122 info->emu.mdmreg[REG_SCREEN] = setup->screen;
2124 spin_unlock_irqrestore(&dev->lock, flags);
2125 printk(KERN_INFO "isdn_tty: call from %s, -> RING on ttyI%d\n", nr,
2127 info->msr |= UART_MSR_RI;
2128 isdn_tty_modem_result(RESULT_RING, info);
2129 isdn_timer_ctrl(ISDN_TIMER_MODEMRING, 1);
2135 spin_unlock_irqrestore(&dev->lock, flags);
2136 printk(KERN_INFO "isdn_tty: call from %s -> %s %s\n", nr, eaz,
2137 ((dev->drv[di]->flags & DRV_FLAG_REJBUS) && (wret != 2))? "rejected" : "ignored");
2138 return (wret == 2)?3:0;
2141 #define TTY_IS_ACTIVE(info) \
2142 (info->flags & (ISDN_ASYNC_NORMAL_ACTIVE | ISDN_ASYNC_CALLOUT_ACTIVE))
2145 isdn_tty_stat_callback(int i, isdn_ctrl *c)
2153 if ((mi = dev->m_idx[i]) >= 0) {
2154 info = &dev->mdm.info[mi];
2155 switch (c->command) {
2156 case ISDN_STAT_CINF:
2157 printk(KERN_DEBUG "CHARGEINFO on ttyI%d: %ld %s\n", info->line, c->arg, c->parm.num);
2158 info->emu.charge = (unsigned) simple_strtoul(c->parm.num, &e, 10);
2159 if (e == (char *)c->parm.num)
2160 info->emu.charge = 0;
2163 case ISDN_STAT_BSENT:
2164 #ifdef ISDN_TTY_STAT_DEBUG
2165 printk(KERN_DEBUG "tty_STAT_BSENT ttyI%d\n", info->line);
2167 if ((info->isdn_driver == c->driver) &&
2168 (info->isdn_channel == c->arg)) {
2169 info->msr |= UART_MSR_CTS;
2170 if (info->send_outstanding)
2171 if (!(--info->send_outstanding))
2172 info->lsr |= UART_LSR_TEMT;
2173 isdn_tty_tint(info);
2177 case ISDN_STAT_CAUSE:
2178 #ifdef ISDN_TTY_STAT_DEBUG
2179 printk(KERN_DEBUG "tty_STAT_CAUSE ttyI%d\n", info->line);
2181 /* Signal cause to tty-device */
2182 strncpy(info->last_cause, c->parm.num, 5);
2184 case ISDN_STAT_DISPLAY:
2185 #ifdef ISDN_TTY_STAT_DEBUG
2186 printk(KERN_DEBUG "tty_STAT_DISPLAY ttyI%d\n", info->line);
2188 /* Signal display to tty-device */
2189 if ((info->emu.mdmreg[REG_DISPLAY] & BIT_DISPLAY) &&
2190 !(info->emu.mdmreg[REG_RESPNUM] & BIT_RESPNUM)) {
2191 isdn_tty_at_cout("\r\n", info);
2192 isdn_tty_at_cout("DISPLAY: ", info);
2193 isdn_tty_at_cout(c->parm.display, info);
2194 isdn_tty_at_cout("\r\n", info);
2197 case ISDN_STAT_DCONN:
2198 #ifdef ISDN_TTY_STAT_DEBUG
2199 printk(KERN_DEBUG "tty_STAT_DCONN ttyI%d\n", info->line);
2201 if (TTY_IS_ACTIVE(info)) {
2202 if (info->dialing == 1) {
2208 case ISDN_STAT_DHUP:
2209 #ifdef ISDN_TTY_STAT_DEBUG
2210 printk(KERN_DEBUG "tty_STAT_DHUP ttyI%d\n", info->line);
2212 if (TTY_IS_ACTIVE(info)) {
2213 if (info->dialing == 1)
2214 isdn_tty_modem_result(RESULT_BUSY, info);
2215 if (info->dialing > 1)
2216 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
2218 #ifdef ISDN_DEBUG_MODEM_HUP
2219 printk(KERN_DEBUG "Mhup in ISDN_STAT_DHUP\n");
2221 isdn_tty_modem_hup(info, 0);
2225 case ISDN_STAT_BCONN:
2226 #ifdef ISDN_TTY_STAT_DEBUG
2227 printk(KERN_DEBUG "tty_STAT_BCONN ttyI%d\n", info->line);
2229 /* Wake up any processes waiting
2230 * for incoming call of this device when
2231 * DCD follow the state of incoming carrier
2233 if (info->blocked_open &&
2234 (info->emu.mdmreg[REG_DCD] & BIT_DCD)) {
2235 wake_up_interruptible(&info->open_wait);
2238 /* Schedule CONNECT-Message to any tty
2239 * waiting for it and
2240 * set DCD-bit of its modem-status.
2242 if (TTY_IS_ACTIVE(info) ||
2243 (info->blocked_open && (info->emu.mdmreg[REG_DCD] & BIT_DCD))) {
2244 info->msr |= UART_MSR_DCD;
2245 info->emu.charge = 0;
2246 if (info->dialing & 0xf)
2252 if (USG_MODEM(dev->usage[i])) {
2253 if (info->emu.mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM) {
2254 strcpy(info->emu.connmsg, c->parm.num);
2255 isdn_tty_modem_result(RESULT_CONNECT, info);
2257 isdn_tty_modem_result(RESULT_CONNECT64000, info);
2259 if (USG_VOICE(dev->usage[i]))
2260 isdn_tty_modem_result(RESULT_VCON, info);
2264 case ISDN_STAT_BHUP:
2265 #ifdef ISDN_TTY_STAT_DEBUG
2266 printk(KERN_DEBUG "tty_STAT_BHUP ttyI%d\n", info->line);
2268 if (TTY_IS_ACTIVE(info)) {
2269 #ifdef ISDN_DEBUG_MODEM_HUP
2270 printk(KERN_DEBUG "Mhup in ISDN_STAT_BHUP\n");
2272 isdn_tty_modem_hup(info, 0);
2276 case ISDN_STAT_NODCH:
2277 #ifdef ISDN_TTY_STAT_DEBUG
2278 printk(KERN_DEBUG "tty_STAT_NODCH ttyI%d\n", info->line);
2280 if (TTY_IS_ACTIVE(info)) {
2281 if (info->dialing) {
2285 sprintf(info->last_cause, "0000");
2286 isdn_tty_modem_result(RESULT_NO_DIALTONE, info);
2288 isdn_tty_modem_hup(info, 0);
2292 case ISDN_STAT_UNLOAD:
2293 #ifdef ISDN_TTY_STAT_DEBUG
2294 printk(KERN_DEBUG "tty_STAT_UNLOAD ttyI%d\n", info->line);
2296 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
2297 info = &dev->mdm.info[i];
2298 if (info->isdn_driver == c->driver) {
2300 isdn_tty_modem_hup(info, 1);
2304 #ifdef CONFIG_ISDN_TTY_FAX
2305 case ISDN_STAT_FAXIND:
2306 if (TTY_IS_ACTIVE(info)) {
2307 isdn_tty_fax_command(info, c);
2311 #ifdef CONFIG_ISDN_AUDIO
2312 case ISDN_STAT_AUDIO:
2313 if (TTY_IS_ACTIVE(info)) {
2314 switch(c->parm.num[0]) {
2315 case ISDN_AUDIO_DTMF:
2316 if (info->vonline) {
2317 isdn_audio_put_dle_code(info,
2330 /*********************************************************************
2331 Modem-Emulator-Routines
2332 *********************************************************************/
2334 #define cmdchar(c) ((c>=' ')&&(c<=0x7f))
2337 * Put a message from the AT-emulator into receive-buffer of tty,
2338 * convert CR, LF, and BS to values in modem-registers 3, 4 and 5.
2341 isdn_tty_at_cout(char *msg, modem_info * info)
2343 struct tty_struct *tty;
2344 atemu *m = &info->emu;
2348 struct sk_buff *skb = NULL;
2352 printk(KERN_WARNING "isdn_tty: Null-Message in isdn_tty_at_cout\n");
2355 spin_lock_irqsave(&info->readlock, flags);
2357 if ((info->flags & ISDN_ASYNC_CLOSING) || (!tty)) {
2358 spin_unlock_irqrestore(&info->readlock, flags);
2362 /* use queue instead of direct flip, if online and */
2363 /* data is in queue or flip buffer is full */
2364 if ((info->online) && (((tty->flip.count + strlen(msg)) >= TTY_FLIPBUF_SIZE) ||
2365 (!skb_queue_empty(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel])))) {
2366 skb = alloc_skb(strlen(msg), GFP_ATOMIC);
2368 spin_unlock_irqrestore(&info->readlock, flags);
2371 sp = skb_put(skb, strlen(msg));
2372 #ifdef CONFIG_ISDN_AUDIO
2373 ISDN_AUDIO_SKB_DLECOUNT(skb) = 0;
2374 ISDN_AUDIO_SKB_LOCK(skb) = 0;
2378 for (p = msg; *p; p++) {
2381 c = m->mdmreg[REG_CR];
2384 c = m->mdmreg[REG_LF];
2387 c = m->mdmreg[REG_BS];
2395 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
2397 tty_insert_flip_char(tty, c, 0);
2401 __skb_queue_tail(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel], skb);
2402 dev->drv[info->isdn_driver]->rcvcount[info->isdn_channel] += skb->len;
2403 spin_unlock_irqrestore(&info->readlock, flags);
2404 /* Schedule dequeuing */
2405 if ((dev->modempoll) && (info->rcvsched))
2406 isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1);
2409 spin_unlock_irqrestore(&info->readlock, flags);
2410 schedule_delayed_work(&tty->flip.work, 1);
2415 * Perform ATH Hangup
2418 isdn_tty_on_hook(modem_info * info)
2420 if (info->isdn_channel >= 0) {
2421 #ifdef ISDN_DEBUG_MODEM_HUP
2422 printk(KERN_DEBUG "Mhup in isdn_tty_on_hook\n");
2424 isdn_tty_modem_hup(info, 1);
2429 isdn_tty_off_hook(void)
2431 printk(KERN_DEBUG "isdn_tty_off_hook\n");
2434 #define PLUSWAIT1 (HZ/2) /* 0.5 sec. */
2435 #define PLUSWAIT2 (HZ*3/2) /* 1.5 sec */
2438 * Check Buffer for Modem-escape-sequence, activate timer-callback to
2439 * isdn_tty_modem_escape() if sequence found.
2442 * p pointer to databuffer
2443 * plus escape-character
2444 * count length of buffer
2445 * pluscount count of valid escape-characters so far
2446 * lastplus timestamp of last character
2449 isdn_tty_check_esc(const u_char * p, u_char plus, int count, int *pluscount,
2460 if (*(p++) == plus) {
2461 if ((*pluscount)++) {
2462 /* Time since last '+' > 0.5 sec. ? */
2463 if (time_after(jiffies, *lastplus + PLUSWAIT1))
2466 /* Time since last non-'+' < 1.5 sec. ? */
2467 if (time_before(jiffies, *lastplus + PLUSWAIT2))
2470 if ((*pluscount == 3) && (count == 1))
2471 isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS, 1);
2476 *lastplus = jiffies;
2482 * Return result of AT-emulator to tty-receive-buffer, depending on
2483 * modem-register 12, bit 0 and 1.
2484 * For CONNECT-messages also switch to online-mode.
2485 * For RING-message handle auto-ATA if register 0 != 0
2489 isdn_tty_modem_result(int code, modem_info * info)
2491 atemu *m = &info->emu;
2492 static char *msg[] =
2493 {"OK", "CONNECT", "RING", "NO CARRIER", "ERROR",
2494 "CONNECT 64000", "NO DIALTONE", "BUSY", "NO ANSWER",
2495 "RINGING", "NO MSN/EAZ", "VCON", "RUNG"};
2496 char s[ISDN_MSNLEN+10];
2500 m->mdmreg[REG_RINGCNT]++;
2501 if (m->mdmreg[REG_RINGCNT] == m->mdmreg[REG_RINGATA])
2502 /* Automatically accept incoming call */
2503 isdn_tty_cmd_ATA(info);
2505 case RESULT_NO_CARRIER:
2506 #ifdef ISDN_DEBUG_MODEM_HUP
2507 printk(KERN_DEBUG "modem_result: NO CARRIER %d %d\n",
2508 (info->flags & ISDN_ASYNC_CLOSING),
2511 m->mdmreg[REG_RINGCNT] = 0;
2512 del_timer(&info->nc_timer);
2514 if ((info->flags & ISDN_ASYNC_CLOSING) || (!info->tty)) {
2517 #ifdef CONFIG_ISDN_AUDIO
2518 if (info->vonline & 1) {
2519 #ifdef ISDN_DEBUG_MODEM_VOICE
2520 printk(KERN_DEBUG "res3: send DLE-ETX on ttyI%d\n",
2523 /* voice-recording, add DLE-ETX */
2524 isdn_tty_at_cout("\020\003", info);
2526 if (info->vonline & 2) {
2527 #ifdef ISDN_DEBUG_MODEM_VOICE
2528 printk(KERN_DEBUG "res3: send DLE-DC4 on ttyI%d\n",
2531 /* voice-playing, add DLE-DC4 */
2532 isdn_tty_at_cout("\020\024", info);
2536 case RESULT_CONNECT:
2537 case RESULT_CONNECT64000:
2538 sprintf(info->last_cause, "0000");
2543 #ifdef ISDN_DEBUG_MODEM_VOICE
2544 printk(KERN_DEBUG "res3: send VCON on ttyI%d\n",
2547 sprintf(info->last_cause, "0000");
2551 } /* switch(code) */
2553 if (m->mdmreg[REG_RESP] & BIT_RESP) {
2555 if (m->mdmreg[REG_RESPNUM] & BIT_RESPNUM) {
2556 /* Show numeric results only */
2557 sprintf(s, "\r\n%d\r\n", code);
2558 isdn_tty_at_cout(s, info);
2560 if (code == RESULT_RING) {
2561 /* return if "show RUNG" and ringcounter>1 */
2562 if ((m->mdmreg[REG_RUNG] & BIT_RUNG) &&
2563 (m->mdmreg[REG_RINGCNT] > 1))
2565 /* print CID, _before_ _every_ ring */
2566 if (!(m->mdmreg[REG_CIDONCE] & BIT_CIDONCE)) {
2567 isdn_tty_at_cout("\r\nCALLER NUMBER: ", info);
2568 isdn_tty_at_cout(dev->num[info->drv_index], info);
2569 if (m->mdmreg[REG_CDN] & BIT_CDN) {
2570 isdn_tty_at_cout("\r\nCALLED NUMBER: ", info);
2571 isdn_tty_at_cout(info->emu.cpn, info);
2575 isdn_tty_at_cout("\r\n", info);
2576 isdn_tty_at_cout(msg[code], info);
2578 case RESULT_CONNECT:
2579 switch (m->mdmreg[REG_L2PROT]) {
2580 case ISDN_PROTO_L2_MODEM:
2581 isdn_tty_at_cout(" ", info);
2582 isdn_tty_at_cout(m->connmsg, info);
2587 /* Append CPN, if enabled */
2588 if ((m->mdmreg[REG_CPN] & BIT_CPN)) {
2589 sprintf(s, "/%s", m->cpn);
2590 isdn_tty_at_cout(s, info);
2592 /* Print CID only once, _after_ 1st RING */
2593 if ((m->mdmreg[REG_CIDONCE] & BIT_CIDONCE) &&
2594 (m->mdmreg[REG_RINGCNT] == 1)) {
2595 isdn_tty_at_cout("\r\n", info);
2596 isdn_tty_at_cout("CALLER NUMBER: ", info);
2597 isdn_tty_at_cout(dev->num[info->drv_index], info);
2598 if (m->mdmreg[REG_CDN] & BIT_CDN) {
2599 isdn_tty_at_cout("\r\nCALLED NUMBER: ", info);
2600 isdn_tty_at_cout(info->emu.cpn, info);
2604 case RESULT_NO_CARRIER:
2605 case RESULT_NO_DIALTONE:
2607 case RESULT_NO_ANSWER:
2608 m->mdmreg[REG_RINGCNT] = 0;
2609 /* Append Cause-Message if enabled */
2610 if (m->mdmreg[REG_RESPXT] & BIT_RESPXT) {
2611 sprintf(s, "/%s", info->last_cause);
2612 isdn_tty_at_cout(s, info);
2615 case RESULT_CONNECT64000:
2616 /* Append Protocol to CONNECT message */
2617 switch (m->mdmreg[REG_L2PROT]) {
2618 case ISDN_PROTO_L2_X75I:
2619 case ISDN_PROTO_L2_X75UI:
2620 case ISDN_PROTO_L2_X75BUI:
2621 isdn_tty_at_cout("/X.75", info);
2623 case ISDN_PROTO_L2_HDLC:
2624 isdn_tty_at_cout("/HDLC", info);
2626 case ISDN_PROTO_L2_V11096:
2627 isdn_tty_at_cout("/V110/9600", info);
2629 case ISDN_PROTO_L2_V11019:
2630 isdn_tty_at_cout("/V110/19200", info);
2632 case ISDN_PROTO_L2_V11038:
2633 isdn_tty_at_cout("/V110/38400", info);
2636 if (m->mdmreg[REG_T70] & BIT_T70) {
2637 isdn_tty_at_cout("/T.70", info);
2638 if (m->mdmreg[REG_T70] & BIT_T70_EXT)
2639 isdn_tty_at_cout("+", info);
2643 isdn_tty_at_cout("\r\n", info);
2646 if (code == RESULT_NO_CARRIER) {
2647 if ((info->flags & ISDN_ASYNC_CLOSING) || (!info->tty)) {
2650 tty_ldisc_flush(info->tty);
2651 if ((info->flags & ISDN_ASYNC_CHECK_CD) &&
2652 (!((info->flags & ISDN_ASYNC_CALLOUT_ACTIVE) &&
2653 (info->flags & ISDN_ASYNC_CALLOUT_NOHUP)))) {
2654 tty_hangup(info->tty);
2661 * Display a modem-register-value.
2664 isdn_tty_show_profile(int ridx, modem_info * info)
2668 sprintf(v, "\r\n%d", info->emu.mdmreg[ridx]);
2669 isdn_tty_at_cout(v, info);
2673 * Get MSN-string from char-pointer, set pointer to end of number
2676 isdn_tty_get_msnstr(char *n, char **p)
2678 int limit = ISDN_MSNLEN - 1;
2680 while (((*p[0] >= '0' && *p[0] <= '9') ||
2681 /* Why a comma ??? */
2682 (*p[0] == ',') || (*p[0] == ':')) &&
2689 * Get phone-number from modem-commandbuffer
2692 isdn_tty_getdial(char *p, char *q,int cnt)
2695 int limit = ISDN_MSNLEN - 1; /* MUST match the size of interface var to avoid
2698 while (strchr(" 0123456789,#.*WPTS-", *p) && *p && --cnt>0) {
2699 if ((*p >= '0' && *p <= '9') || ((*p == 'S') && first) ||
2700 (*p == '*') || (*p == '#')) {
2712 #define PARSE_ERROR { isdn_tty_modem_result(RESULT_ERROR, info); return; }
2713 #define PARSE_ERROR1 { isdn_tty_modem_result(RESULT_ERROR, info); return 1; }
2716 isdn_tty_report(modem_info * info)
2718 atemu *m = &info->emu;
2721 isdn_tty_at_cout("\r\nStatistics of last connection:\r\n\r\n", info);
2722 sprintf(s, " Remote Number: %s\r\n", info->last_num);
2723 isdn_tty_at_cout(s, info);
2724 sprintf(s, " Direction: %s\r\n", info->last_dir ? "outgoing" : "incoming");
2725 isdn_tty_at_cout(s, info);
2726 isdn_tty_at_cout(" Layer-2 Protocol: ", info);
2727 switch (info->last_l2) {
2728 case ISDN_PROTO_L2_X75I:
2729 isdn_tty_at_cout("X.75i", info);
2731 case ISDN_PROTO_L2_X75UI:
2732 isdn_tty_at_cout("X.75ui", info);
2734 case ISDN_PROTO_L2_X75BUI:
2735 isdn_tty_at_cout("X.75bui", info);
2737 case ISDN_PROTO_L2_HDLC:
2738 isdn_tty_at_cout("HDLC", info);
2740 case ISDN_PROTO_L2_V11096:
2741 isdn_tty_at_cout("V.110 9600 Baud", info);
2743 case ISDN_PROTO_L2_V11019:
2744 isdn_tty_at_cout("V.110 19200 Baud", info);
2746 case ISDN_PROTO_L2_V11038:
2747 isdn_tty_at_cout("V.110 38400 Baud", info);
2749 case ISDN_PROTO_L2_TRANS:
2750 isdn_tty_at_cout("transparent", info);
2752 case ISDN_PROTO_L2_MODEM:
2753 isdn_tty_at_cout("modem", info);
2755 case ISDN_PROTO_L2_FAX:
2756 isdn_tty_at_cout("fax", info);
2759 isdn_tty_at_cout("unknown", info);
2762 if (m->mdmreg[REG_T70] & BIT_T70) {
2763 isdn_tty_at_cout("/T.70", info);
2764 if (m->mdmreg[REG_T70] & BIT_T70_EXT)
2765 isdn_tty_at_cout("+", info);
2767 isdn_tty_at_cout("\r\n", info);
2768 isdn_tty_at_cout(" Service: ", info);
2769 switch (info->last_si) {
2771 isdn_tty_at_cout("audio\r\n", info);
2774 isdn_tty_at_cout("btx\r\n", info);
2777 isdn_tty_at_cout("data\r\n", info);
2780 sprintf(s, "%d\r\n", info->last_si);
2781 isdn_tty_at_cout(s, info);
2784 sprintf(s, " Hangup location: %s\r\n", info->last_lhup ? "local" : "remote");
2785 isdn_tty_at_cout(s, info);
2786 sprintf(s, " Last cause: %s\r\n", info->last_cause);
2787 isdn_tty_at_cout(s, info);
2791 * Parse AT&.. commands.
2794 isdn_tty_cmd_ATand(char **p, modem_info * info)
2796 atemu *m = &info->emu;
2800 #define MAXRB (sizeof(rb) - 1)
2804 /* &B - Set Buffersize */
2807 if ((i < 0) || (i > ISDN_SERIAL_XMIT_MAX))
2809 #ifdef CONFIG_ISDN_AUDIO
2810 if ((m->mdmreg[REG_SI1] & 1) && (i > VBUF))
2813 m->mdmreg[REG_PSIZE] = i / 16;
2814 info->xmit_size = m->mdmreg[REG_PSIZE] * 16;
2815 switch (m->mdmreg[REG_L2PROT]) {
2816 case ISDN_PROTO_L2_V11096:
2817 case ISDN_PROTO_L2_V11019:
2818 case ISDN_PROTO_L2_V11038:
2819 info->xmit_size /= 10;
2823 /* &C - DCD Status */
2825 switch (isdn_getnum(p)) {
2827 m->mdmreg[REG_DCD] &= ~BIT_DCD;
2830 m->mdmreg[REG_DCD] |= BIT_DCD;
2837 /* &D - Set DTR-Low-behavior */
2839 switch (isdn_getnum(p)) {
2841 m->mdmreg[REG_DTRHUP] &= ~BIT_DTRHUP;
2842 m->mdmreg[REG_DTRR] &= ~BIT_DTRR;
2845 m->mdmreg[REG_DTRHUP] |= BIT_DTRHUP;
2846 m->mdmreg[REG_DTRR] &= ~BIT_DTRR;
2849 m->mdmreg[REG_DTRHUP] |= BIT_DTRHUP;
2850 m->mdmreg[REG_DTRR] |= BIT_DTRR;
2857 /* &E -Set EAZ/MSN */
2859 isdn_tty_get_msnstr(m->msn, p);
2862 /* &F -Set Factory-Defaults */
2864 if (info->msr & UART_MSR_DCD)
2866 isdn_tty_reset_profile(m);
2867 isdn_tty_modem_reset_regs(info, 1);
2869 #ifdef DUMMY_HAYES_AT
2871 /* only for be compilant with common scripts */
2872 /* &K Flowcontrol - no function */
2878 /* &L -Set Numbers to listen on */
2881 while (*p[0] && (strchr("0123456789,-*[]?;", *p[0])) &&
2883 m->lmsn[i++] = *p[0]++;
2887 /* &R - Set V.110 bitrate adaption */
2892 /* Switch off V.110, back to X.75 */
2893 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I;
2894 m->mdmreg[REG_SI2] = 0;
2895 info->xmit_size = m->mdmreg[REG_PSIZE] * 16;
2898 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11096;
2899 m->mdmreg[REG_SI2] = 197;
2900 info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10;
2903 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11019;
2904 m->mdmreg[REG_SI2] = 199;
2905 info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10;
2908 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11038;
2909 m->mdmreg[REG_SI2] = 198; /* no existing standard for this */
2910 info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10;
2915 /* Switch off T.70 */
2916 m->mdmreg[REG_T70] &= ~(BIT_T70 | BIT_T70_EXT);
2918 m->mdmreg[REG_SI1] |= 4;
2921 /* &S - Set Windowsize */
2924 if ((i > 0) && (i < 9))
2925 m->mdmreg[REG_WSIZE] = i;
2930 /* &V - Show registers */
2932 isdn_tty_at_cout("\r\n", info);
2933 for (i = 0; i < ISDN_MODEM_NUMREG; i++) {
2934 sprintf(rb, "S%02d=%03d%s", i,
2935 m->mdmreg[i], ((i + 1) % 10) ? " " : "\r\n");
2936 isdn_tty_at_cout(rb, info);
2938 sprintf(rb, "\r\nEAZ/MSN: %.50s\r\n",
2939 strlen(m->msn) ? m->msn : "None");
2940 isdn_tty_at_cout(rb, info);
2941 if (strlen(m->lmsn)) {
2942 isdn_tty_at_cout("\r\nListen: ", info);
2943 isdn_tty_at_cout(m->lmsn, info);
2944 isdn_tty_at_cout("\r\n", info);
2948 /* &W - Write Profile */
2953 modem_write_profile(m);
2960 /* &X - Switch to BTX-Mode and T.70 */
2962 switch (isdn_getnum(p)) {
2964 m->mdmreg[REG_T70] &= ~(BIT_T70 | BIT_T70_EXT);
2965 info->xmit_size = m->mdmreg[REG_PSIZE] * 16;
2968 m->mdmreg[REG_T70] |= BIT_T70;
2969 m->mdmreg[REG_T70] &= ~BIT_T70_EXT;
2970 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I;
2971 info->xmit_size = 112;
2972 m->mdmreg[REG_SI1] = 4;
2973 m->mdmreg[REG_SI2] = 0;
2976 m->mdmreg[REG_T70] |= (BIT_T70 | BIT_T70_EXT);
2977 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I;
2978 info->xmit_size = 112;
2979 m->mdmreg[REG_SI1] = 4;
2980 m->mdmreg[REG_SI2] = 0;
2993 isdn_tty_check_ats(int mreg, int mval, modem_info * info, atemu * m)
2995 /* Some plausibility checks */
2998 if (mval > ISDN_PROTO_L2_MAX)
3002 if ((mval * 16) > ISDN_SERIAL_XMIT_MAX)
3004 #ifdef CONFIG_ISDN_AUDIO
3005 if ((m->mdmreg[REG_SI1] & 1) && (mval > VBUFX))
3008 info->xmit_size = mval * 16;
3009 switch (m->mdmreg[REG_L2PROT]) {
3010 case ISDN_PROTO_L2_V11096:
3011 case ISDN_PROTO_L2_V11019:
3012 case ISDN_PROTO_L2_V11038:
3013 info->xmit_size /= 10;
3019 /* readonly registers */
3026 * Perform ATS command
3029 isdn_tty_cmd_ATS(char **p, modem_info * info)
3031 atemu *m = &info->emu;
3037 mreg = isdn_getnum(p);
3038 if (mreg < 0 || mreg >= ISDN_MODEM_NUMREG)
3043 mval = isdn_getnum(p);
3044 if (mval < 0 || mval > 255)
3046 if (isdn_tty_check_ats(mreg, mval, info, m))
3048 m->mdmreg[mreg] = mval;
3051 /* Set/Clear a single bit */
3053 bitpos = isdn_getnum(p);
3054 if ((bitpos < 0) || (bitpos > 7))
3059 bval = isdn_getnum(p);
3060 if (bval < 0 || bval > 1)
3063 mval = m->mdmreg[mreg] | (1 << bitpos);
3065 mval = m->mdmreg[mreg] & ~(1 << bitpos);
3066 if (isdn_tty_check_ats(mreg, mval, info, m))
3068 m->mdmreg[mreg] = mval;
3072 isdn_tty_at_cout("\r\n", info);
3073 isdn_tty_at_cout((m->mdmreg[mreg] & (1 << bitpos)) ? "1" : "0",
3082 isdn_tty_show_profile(mreg, info);
3092 * Perform ATA command
3095 isdn_tty_cmd_ATA(modem_info * info)
3097 atemu *m = &info->emu;
3101 if (info->msr & UART_MSR_RI) {
3102 /* Accept incoming call */
3104 strcpy(info->last_num, dev->num[info->drv_index]);
3105 m->mdmreg[REG_RINGCNT] = 0;
3106 info->msr &= ~UART_MSR_RI;
3107 l2 = m->mdmreg[REG_L2PROT];
3108 #ifdef CONFIG_ISDN_AUDIO
3109 /* If more than one bit set in reg18, autoselect Layer2 */
3110 if ((m->mdmreg[REG_SI1] & m->mdmreg[REG_SI1I]) != m->mdmreg[REG_SI1]) {
3111 if (m->mdmreg[REG_SI1I] == 1) {
3112 if ((l2 != ISDN_PROTO_L2_MODEM) && (l2 != ISDN_PROTO_L2_FAX))
3113 l2 = ISDN_PROTO_L2_TRANS;
3115 l2 = ISDN_PROTO_L2_X75I;
3118 cmd.driver = info->isdn_driver;
3119 cmd.command = ISDN_CMD_SETL2;
3120 cmd.arg = info->isdn_channel + (l2 << 8);
3123 cmd.driver = info->isdn_driver;
3124 cmd.command = ISDN_CMD_SETL3;
3125 cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8);
3126 #ifdef CONFIG_ISDN_TTY_FAX
3127 if (l2 == ISDN_PROTO_L2_FAX) {
3128 cmd.parm.fax = info->fax;
3129 info->fax->direction = ISDN_TTY_FAX_CONN_IN;
3133 cmd.driver = info->isdn_driver;
3134 cmd.arg = info->isdn_channel;
3135 cmd.command = ISDN_CMD_ACCEPTD;
3137 info->emu.carrierwait = 0;
3139 isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1);
3141 isdn_tty_modem_result(RESULT_NO_ANSWER, info);
3144 #ifdef CONFIG_ISDN_AUDIO
3146 * Parse AT+F.. commands
3149 isdn_tty_cmd_PLUSF(char **p, modem_info * info)
3151 atemu *m = &info->emu;
3154 if (!strncmp(p[0], "CLASS", 5)) {
3159 sprintf(rs, "\r\n%d",
3160 (m->mdmreg[REG_SI1] & 1) ? 8 : 0);
3161 #ifdef CONFIG_ISDN_TTY_FAX
3162 if (TTY_IS_FCLASS2(info))
3163 sprintf(rs, "\r\n2");
3164 else if (TTY_IS_FCLASS1(info))
3165 sprintf(rs, "\r\n1");
3167 isdn_tty_at_cout(rs, info);
3174 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I;
3175 m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_TRANS;
3176 m->mdmreg[REG_SI1] = 4;
3178 m->mdmreg[REG_PSIZE] * 16;
3180 #ifdef CONFIG_ISDN_TTY_FAX
3183 if (!(dev->global_features &
3184 ISDN_FEATURE_L3_FCLASS1))
3186 m->mdmreg[REG_SI1] = 1;
3187 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_FAX;
3188 m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_FCLASS1;
3190 m->mdmreg[REG_PSIZE] * 16;
3194 if (!(dev->global_features &
3195 ISDN_FEATURE_L3_FCLASS2))
3197 m->mdmreg[REG_SI1] = 1;
3198 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_FAX;
3199 m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_FCLASS2;
3201 m->mdmreg[REG_PSIZE] * 16;
3206 /* L2 will change on dialout with si=1 */
3207 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I;
3208 m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_TRANS;
3209 m->mdmreg[REG_SI1] = 5;
3210 info->xmit_size = VBUF;
3214 strcpy(rs, "\r\n0,");
3215 #ifdef CONFIG_ISDN_TTY_FAX
3216 if (dev->global_features &
3217 ISDN_FEATURE_L3_FCLASS1)
3219 if (dev->global_features &
3220 ISDN_FEATURE_L3_FCLASS2)
3224 isdn_tty_at_cout(rs, info);
3235 #ifdef CONFIG_ISDN_TTY_FAX
3236 return (isdn_tty_cmd_PLUSF_FAX(p, info));
3243 * Parse AT+V.. commands
3246 isdn_tty_cmd_PLUSV(char **p, modem_info * info)
3248 atemu *m = &info->emu;
3250 static char *vcmd[] =
3251 {"NH", "IP", "LS", "RX", "SD", "SM", "TX", "DD", NULL};
3259 if (!strncmp(vcmd[i], p[0], 2)) {
3267 /* AT+VNH - Auto hangup feature */
3271 isdn_tty_at_cout("\r\n1", info);
3281 isdn_tty_at_cout("\r\n1", info);
3292 /* AT+VIP - Reset all voice parameters */
3293 isdn_tty_modem_reset_vpar(m);
3296 /* AT+VLS - Select device, accept incoming call */
3300 sprintf(rs, "\r\n%d", m->vpar[0]);
3301 isdn_tty_at_cout(rs, info);
3316 isdn_tty_at_cout("\r\n0,2", info);
3327 /* AT+VRX - Start recording */
3330 if (info->online != 1) {
3331 isdn_tty_modem_result(RESULT_NO_ANSWER, info);
3334 info->dtmf_state = isdn_audio_dtmf_init(info->dtmf_state);
3335 if (!info->dtmf_state) {
3336 printk(KERN_WARNING "isdn_tty: Couldn't malloc dtmf state\n");
3339 info->silence_state = isdn_audio_silence_init(info->silence_state);
3340 if (!info->silence_state) {
3341 printk(KERN_WARNING "isdn_tty: Couldn't malloc silence state\n");
3344 if (m->vpar[3] < 5) {
3345 info->adpcmr = isdn_audio_adpcm_init(info->adpcmr, m->vpar[3]);
3346 if (!info->adpcmr) {
3347 printk(KERN_WARNING "isdn_tty: Couldn't malloc adpcm state\n");
3351 #ifdef ISDN_DEBUG_AT
3352 printk(KERN_DEBUG "AT: +VRX\n");
3355 isdn_tty_modem_result(RESULT_CONNECT, info);
3359 /* AT+VSD - Silence detection */
3363 sprintf(rs, "\r\n<%d>,<%d>",
3366 isdn_tty_at_cout(rs, info);
3370 if ((*p[0]>='0') && (*p[0]<='9')) {
3371 par1 = isdn_getnum(p);
3372 if ((par1 < 0) || (par1 > 31))
3377 par2 = isdn_getnum(p);
3378 if ((par2 < 0) || (par2 > 255))
3386 isdn_tty_at_cout("\r\n<0-31>,<0-255>",
3397 /* AT+VSM - Select compression */
3401 sprintf(rs, "\r\n<%d>,<%d><8000>",
3404 isdn_tty_at_cout(rs, info);
3414 par1 = isdn_getnum(p);
3415 if ((par1 < 2) || (par1 > 6))
3421 isdn_tty_at_cout("\r\n2;ADPCM;2;0;(8000)\r\n",
3423 isdn_tty_at_cout("3;ADPCM;3;0;(8000)\r\n",
3425 isdn_tty_at_cout("4;ADPCM;4;0;(8000)\r\n",
3427 isdn_tty_at_cout("5;ALAW;8;0;(8000)\r\n",
3429 isdn_tty_at_cout("6;ULAW;8;0;(8000)\r\n",
3441 /* AT+VTX - Start sending */
3444 if (info->online != 1) {
3445 isdn_tty_modem_result(RESULT_NO_ANSWER, info);
3448 info->dtmf_state = isdn_audio_dtmf_init(info->dtmf_state);
3449 if (!info->dtmf_state) {
3450 printk(KERN_WARNING "isdn_tty: Couldn't malloc dtmf state\n");
3453 if (m->vpar[3] < 5) {
3454 info->adpcms = isdn_audio_adpcm_init(info->adpcms, m->vpar[3]);
3455 if (!info->adpcms) {
3456 printk(KERN_WARNING "isdn_tty: Couldn't malloc adpcm state\n");
3460 #ifdef ISDN_DEBUG_AT
3461 printk(KERN_DEBUG "AT: +VTX\n");
3465 isdn_tty_modem_result(RESULT_CONNECT, info);
3469 /* AT+VDD - DTMF detection */
3473 sprintf(rs, "\r\n<%d>,<%d>",
3476 isdn_tty_at_cout(rs, info);
3480 if ((*p[0]>='0') && (*p[0]<='9')) {
3481 if (info->online != 1)
3483 par1 = isdn_getnum(p);
3484 if ((par1 < 0) || (par1 > 15))
3489 par2 = isdn_getnum(p);
3490 if ((par2 < 0) || (par2 > 255))
3494 cmd.driver = info->isdn_driver;
3495 cmd.command = ISDN_CMD_AUDIO;
3496 cmd.arg = info->isdn_channel + (ISDN_AUDIO_SETDD << 8);
3497 cmd.parm.num[0] = par1;
3498 cmd.parm.num[1] = par2;
3504 isdn_tty_at_cout("\r\n<0-15>,<0-255>",
3519 #endif /* CONFIG_ISDN_AUDIO */
3522 * Parse and perform an AT-command-line.
3525 isdn_tty_parse_at(modem_info * info)
3527 atemu *m = &info->emu;
3531 #ifdef ISDN_DEBUG_AT
3532 printk(KERN_DEBUG "AT: '%s'\n", m->mdmcmd);
3534 for (p = &m->mdmcmd[2]; *p;) {
3540 /* A - Accept incoming call */
3542 isdn_tty_cmd_ATA(info);
3547 if (info->msr & UART_MSR_DCD)
3549 if (info->msr & UART_MSR_RI) {
3550 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
3553 isdn_tty_getdial(++p, ds, sizeof ds);
3555 if (!strlen(m->msn))
3556 isdn_tty_modem_result(RESULT_NO_MSN_EAZ, info);
3557 else if (strlen(ds))
3558 isdn_tty_dial(ds, info, m);
3563 /* E - Turn Echo on/off */
3565 switch (isdn_getnum(&p)) {
3567 m->mdmreg[REG_ECHO] &= ~BIT_ECHO;
3570 m->mdmreg[REG_ECHO] |= BIT_ECHO;
3577 /* H - On/Off-hook */
3582 isdn_tty_on_hook(info);
3586 isdn_tty_off_hook();
3589 isdn_tty_on_hook(info);
3594 /* I - Information */
3596 isdn_tty_at_cout("\r\nLinux ISDN", info);
3604 isdn_tty_report(info);
3608 sprintf(ds, "\r\n%d", info->emu.charge);
3609 isdn_tty_at_cout(ds, info);
3614 #ifdef DUMMY_HAYES_AT
3617 /* only for be compilant with common scripts */
3626 if (info->msr & UART_MSR_DCD)
3627 /* if B-Channel is up */
3628 isdn_tty_modem_result((m->mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM) ? RESULT_CONNECT:RESULT_CONNECT64000, info);
3630 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
3633 /* Q - Turn Emulator messages on/off */
3635 switch (isdn_getnum(&p)) {
3637 m->mdmreg[REG_RESP] |= BIT_RESP;
3640 m->mdmreg[REG_RESP] &= ~BIT_RESP;
3647 /* S - Set/Get Register */
3649 if (isdn_tty_cmd_ATS(&p, info))
3653 /* V - Numeric or ASCII Emulator-messages */
3655 switch (isdn_getnum(&p)) {
3657 m->mdmreg[REG_RESP] |= BIT_RESPNUM;
3660 m->mdmreg[REG_RESP] &= ~BIT_RESPNUM;
3667 /* Z - Load Registers from Profile */
3669 if (info->msr & UART_MSR_DCD) {
3671 isdn_tty_on_hook(info);
3673 isdn_tty_modem_reset_regs(info, 1);
3678 #ifdef CONFIG_ISDN_AUDIO
3681 if (isdn_tty_cmd_PLUSF(&p, info))
3685 if ((!(m->mdmreg[REG_SI1] & 1)) ||
3686 (m->mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM))
3689 if (isdn_tty_cmd_PLUSV(&p, info))
3692 #endif /* CONFIG_ISDN_AUDIO */
3693 case 'S': /* SUSPEND */
3695 isdn_tty_get_msnstr(ds, &p);
3696 isdn_tty_suspend(ds, info, m);
3698 case 'R': /* RESUME */
3700 isdn_tty_get_msnstr(ds, &p);
3701 isdn_tty_resume(ds, info, m);
3703 case 'M': /* MESSAGE */
3705 isdn_tty_send_msg(info, m, p);
3713 if (isdn_tty_cmd_ATand(&p, info))
3720 #ifdef CONFIG_ISDN_AUDIO
3723 isdn_tty_modem_result(RESULT_OK, info);
3726 /* Need own toupper() because standard-toupper is not available
3729 #define my_toupper(c) (((c>='a')&&(c<='z'))?(c&0xdf):c)
3732 * Perform line-editing of AT-commands
3736 * count length of buffer
3737 * channel index to line (minor-device)
3740 isdn_tty_edit_at(const char *p, int count, modem_info * info)
3742 atemu *m = &info->emu;
3748 for (cnt = count; cnt > 0; p++, cnt--) {
3751 if (c == m->mdmreg[REG_CR] || c == m->mdmreg[REG_LF]) {
3752 /* Separator (CR or LF) */
3753 m->mdmcmd[m->mdmcmdl] = 0;
3754 if (m->mdmreg[REG_ECHO] & BIT_ECHO) {
3757 isdn_tty_at_cout(eb, info);
3759 if ((m->mdmcmdl >= 2) && (!(strncmp(m->mdmcmd, "AT", 2))))
3760 isdn_tty_parse_at(info);
3764 if (c == m->mdmreg[REG_BS] && m->mdmreg[REG_BS] < 128) {
3765 /* Backspace-Function */
3766 if ((m->mdmcmdl > 2) || (!m->mdmcmdl)) {
3769 if (m->mdmreg[REG_ECHO] & BIT_ECHO)
3770 isdn_tty_at_cout("\b", info);
3775 if (m->mdmreg[REG_ECHO] & BIT_ECHO) {
3778 isdn_tty_at_cout(eb, info);
3780 if (m->mdmcmdl < 255) {
3782 switch (m->mdmcmdl) {
3785 m->mdmcmd[m->mdmcmdl] = c;
3786 m->mdmcmd[++m->mdmcmdl] = 0;
3790 /* Fall through, check for 'A' */
3793 m->mdmcmd[m->mdmcmdl] = c;
3794 m->mdmcmd[++m->mdmcmdl] = 0;
3798 m->mdmcmd[m->mdmcmdl] = c;
3799 m->mdmcmd[++m->mdmcmdl] = 0;
3808 * Switch all modem-channels who are online and got a valid
3809 * escape-sequence 1.5 seconds ago, to command-mode.
3810 * This function is called every second via timer-interrupt from within
3811 * timer-dispatcher isdn_timer_function()
3814 isdn_tty_modem_escape(void)
3820 for (i = 0; i < ISDN_MAX_CHANNELS; i++)
3821 if (USG_MODEM(dev->usage[i]))
3822 if ((midx = dev->m_idx[i]) >= 0) {
3823 modem_info *info = &dev->mdm.info[midx];
3826 if ((info->emu.pluscount == 3) &&
3827 time_after(jiffies , info->emu.lastplus + PLUSWAIT2)) {
3828 info->emu.pluscount = 0;
3830 isdn_tty_modem_result(RESULT_OK, info);
3834 isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS, ton);
3838 * Put a RING-message to all modem-channels who have the RI-bit set.
3839 * This function is called every second via timer-interrupt from within
3840 * timer-dispatcher isdn_timer_function()
3843 isdn_tty_modem_ring(void)
3848 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
3849 modem_info *info = &dev->mdm.info[i];
3850 if (info->msr & UART_MSR_RI) {
3852 isdn_tty_modem_result(RESULT_RING, info);
3855 isdn_timer_ctrl(ISDN_TIMER_MODEMRING, ton);
3859 * For all online tty's, try sending data to
3863 isdn_tty_modem_xmit(void)
3868 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
3869 modem_info *info = &dev->mdm.info[i];
3872 isdn_tty_senddown(info);
3873 isdn_tty_tint(info);
3876 isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, ton);
3880 * Check all channels if we have a 'no carrier' timeout.
3881 * Timeout value is set by Register S7.
3884 isdn_tty_carrier_timeout(void)
3889 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
3890 modem_info *info = &dev->mdm.info[i];
3891 if (info->dialing) {
3892 if (info->emu.carrierwait++ > info->emu.mdmreg[REG_WAITC]) {
3894 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
3895 isdn_tty_modem_hup(info, 1);
3901 isdn_timer_ctrl(ISDN_TIMER_CARRIER, ton);