2 * Linux ISDN subsystem, tty functions and AT-command emulator (linklevel).
4 * Copyright 1994-1999 by Fritz Elfert (fritz@isdn4linux.de)
5 * Copyright 1995,96 by Thinking Objects Software GmbH Wuerzburg
7 * This software may be used and distributed according to the terms
8 * of the GNU General Public License, incorporated herein by reference.
11 #undef ISDN_TTY_STAT_DEBUG
13 #include <linux/isdn.h>
14 #include <linux/serial.h> /* ASYNC_* flags */
15 #include <linux/slab.h>
16 #include <linux/delay.h>
17 #include <linux/mutex.h>
18 #include "isdn_common.h"
20 #ifdef CONFIG_ISDN_AUDIO
21 #include "isdn_audio.h"
23 #define VBUFX (VBUF/16)
26 #define FIX_FILE_TRANSFER
27 #define DUMMY_HAYES_AT
31 static DEFINE_MUTEX(modem_info_mutex);
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);
42 /* Leave this unchanged unless you know what you do! */
43 #define MODEM_PARANOIA_CHECK
44 #define MODEM_DO_RESTART
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};
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.
57 * 0 = Failure, data has to be buffered and later processed by
58 * isdn_tty_readmodem().
61 isdn_tty_try_read(modem_info *info, struct sk_buff *skb)
65 struct tty_struct *tty;
75 if (!(info->mcr & UART_MCR_RTS))
79 #ifdef CONFIG_ISDN_AUDIO
80 + ISDN_AUDIO_SKB_DLECOUNT(skb)
84 c = tty_buffer_request_room(tty, len);
88 #ifdef CONFIG_ISDN_AUDIO
89 if (ISDN_AUDIO_SKB_DLECOUNT(skb)) {
91 unsigned char *dp = skb->data;
94 tty_insert_flip_char(tty, DLE, 0);
95 tty_insert_flip_char(tty, *dp++, 0);
98 tty_insert_flip_char(tty, DLE, 0);
103 tty_insert_flip_string(tty, skb->data, len - 1);
104 last = skb->data[len - 1];
105 #ifdef CONFIG_ISDN_AUDIO
108 if (info->emu.mdmreg[REG_CPPP] & BIT_CPPP)
109 tty_insert_flip_char(tty, last, 0xFF);
111 tty_insert_flip_char(tty, last, TTY_NORMAL);
112 tty_flip_buffer_push(tty);
118 /* isdn_tty_readmodem() is called periodically from within timer-interrupt.
119 * It tries getting received data from the receive queue an stuff it into
120 * the tty's flip-buffer.
123 isdn_tty_readmodem(void)
129 struct tty_struct *tty;
132 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
133 midx = dev->m_idx[i];
137 info = &dev->mdm.info[midx];
142 #ifdef CONFIG_ISDN_AUDIO
143 isdn_audio_eval_dtmf(info);
144 if ((info->vonline & 1) && (info->emu.vpar[1]))
145 isdn_audio_eval_silence(info);
147 tty = info->port.tty;
149 if (info->mcr & UART_MCR_RTS) {
150 /* CISCO AsyncPPP Hack */
151 if (!(info->emu.mdmreg[REG_CPPP] & BIT_CPPP))
152 r = isdn_readbchan_tty(info->isdn_driver, info->isdn_channel, tty, 0);
154 r = isdn_readbchan_tty(info->isdn_driver, info->isdn_channel, tty, 1);
156 tty_flip_buffer_push(tty);
168 isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 0);
172 isdn_tty_rcv_skb(int i, int di, int channel, struct sk_buff *skb)
176 #ifdef CONFIG_ISDN_AUDIO
181 if ((midx = dev->m_idx[i]) < 0) {
182 /* if midx is invalid, packet is not for tty */
185 info = &dev->mdm.info[midx];
186 #ifdef CONFIG_ISDN_AUDIO
189 if ((info->vonline) && (!info->emu.vpar[4]))
190 isdn_audio_calc_dtmf(info, skb->data, skb->len, ifmt);
191 if ((info->vonline & 1) && (info->emu.vpar[1]))
192 isdn_audio_calc_silence(info, skb->data, skb->len, ifmt);
194 if ((info->online < 2)
195 #ifdef CONFIG_ISDN_AUDIO
196 && (!(info->vonline & 1))
199 /* If Modem not listening, drop data */
203 if (info->emu.mdmreg[REG_T70] & BIT_T70) {
204 if (info->emu.mdmreg[REG_T70] & BIT_T70_EXT) {
205 /* T.70 decoding: throw away the T.70 header (2 or 4 bytes) */
206 if (skb->data[0] == 3) /* pure data packet -> 4 byte headers */
209 if (skb->data[0] == 1) /* keepalive packet -> 2 byte hdr */
212 /* T.70 decoding: Simply throw away the T.70 header (4 bytes) */
213 if ((skb->data[0] == 1) && ((skb->data[1] == 0) || (skb->data[1] == 1)))
216 #ifdef CONFIG_ISDN_AUDIO
217 ISDN_AUDIO_SKB_DLECOUNT(skb) = 0;
218 ISDN_AUDIO_SKB_LOCK(skb) = 0;
219 if (info->vonline & 1) {
220 /* voice conversion/compression */
221 switch (info->emu.vpar[3]) {
226 * Since compressed data takes less
227 * space, we can overwrite the buffer.
229 skb_trim(skb, isdn_audio_xlaw2adpcm(info->adpcmr,
238 isdn_audio_ulaw2alaw(skb->data, skb->len);
243 isdn_audio_alaw2ulaw(skb->data, skb->len);
246 ISDN_AUDIO_SKB_DLECOUNT(skb) =
247 isdn_tty_countDLE(skb->data, skb->len);
249 #ifdef CONFIG_ISDN_TTY_FAX
251 if (info->faxonline & 2) {
252 isdn_tty_fax_bitorder(info, skb);
253 ISDN_AUDIO_SKB_DLECOUNT(skb) =
254 isdn_tty_countDLE(skb->data, skb->len);
259 /* Try to deliver directly via tty-buf if queue is empty */
260 spin_lock_irqsave(&info->readlock, flags);
261 if (skb_queue_empty(&dev->drv[di]->rpqueue[channel]))
262 if (isdn_tty_try_read(info, skb)) {
263 spin_unlock_irqrestore(&info->readlock, flags);
266 /* Direct deliver failed or queue wasn't empty.
267 * Queue up for later dequeueing via timer-irq.
269 __skb_queue_tail(&dev->drv[di]->rpqueue[channel], skb);
270 dev->drv[di]->rcvcount[channel] +=
272 #ifdef CONFIG_ISDN_AUDIO
273 + ISDN_AUDIO_SKB_DLECOUNT(skb)
276 spin_unlock_irqrestore(&info->readlock, flags);
277 /* Schedule dequeuing */
278 if ((dev->modempoll) && (info->rcvsched))
279 isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1);
284 isdn_tty_cleanup_xmit(modem_info *info)
286 skb_queue_purge(&info->xmit_queue);
287 #ifdef CONFIG_ISDN_AUDIO
288 skb_queue_purge(&info->dtmf_queue);
293 isdn_tty_tint(modem_info *info)
295 struct sk_buff *skb = skb_dequeue(&info->xmit_queue);
301 if ((slen = isdn_writebuf_skb_stub(info->isdn_driver,
302 info->isdn_channel, 1, skb)) == len) {
303 struct tty_struct *tty = info->port.tty;
304 info->send_outstanding++;
305 info->msr &= ~UART_MSR_CTS;
306 info->lsr &= ~UART_LSR_TEMT;
311 /* Error: no channel, already shutdown, or wrong parameter */
315 skb_queue_head(&info->xmit_queue, skb);
318 #ifdef CONFIG_ISDN_AUDIO
320 isdn_tty_countDLE(unsigned char *buf, int len)
330 /* This routine is called from within isdn_tty_write() to perform
331 * DLE-decoding when sending audio-data.
334 isdn_tty_handleDLEdown(modem_info *info, atemu *m, int len)
336 unsigned char *p = &info->port.xmit_buf[info->xmit_count];
346 memmove(p, p + 1, len - 1);
357 #ifdef ISDN_DEBUG_MODEM_VOICE
359 "DLEdown: got DLE-DC4, send DLE-ETX on ttyI%d\n",
362 isdn_tty_at_cout("\020\003", info);
363 if (!info->vonline) {
364 #ifdef ISDN_DEBUG_MODEM_VOICE
366 "DLEdown: send VCON on ttyI%d\n",
369 isdn_tty_at_cout("\r\nVCON\r\n", info);
376 memmove(p, p + 1, len - 1);
390 printk(KERN_WARNING "isdn_tty: len<0 in DLEdown\n");
396 /* This routine is called from within isdn_tty_write() when receiving
397 * audio-data. It interrupts receiving, if an character other than
401 isdn_tty_end_vrx(const char *buf, int c)
407 if ((ch != 0x11) && (ch != 0x13))
414 static int voice_cf[7] =
415 {0, 0, 4, 3, 2, 0, 0};
417 #endif /* CONFIG_ISDN_AUDIO */
419 /* isdn_tty_senddown() is called either directly from within isdn_tty_write()
420 * or via timer-interrupt from within isdn_tty_modem_xmit(). It pulls
421 * outgoing data from the tty's xmit-buffer, handles voice-decompression or
422 * T.70 if necessary, and finally queues it up for sending via isdn_tty_tint.
425 isdn_tty_senddown(modem_info *info)
429 #ifdef CONFIG_ISDN_AUDIO
434 #ifdef CONFIG_ISDN_AUDIO
435 if (info->vonline & 4) {
437 if (!info->vonline) {
438 #ifdef ISDN_DEBUG_MODEM_VOICE
440 "senddown: send VCON on ttyI%d\n",
443 isdn_tty_at_cout("\r\nVCON\r\n", info);
447 if (!(buflen = info->xmit_count))
449 if ((info->emu.mdmreg[REG_CTS] & BIT_CTS) != 0)
450 info->msr &= ~UART_MSR_CTS;
451 info->lsr &= ~UART_LSR_TEMT;
452 /* info->xmit_count is modified here and in isdn_tty_write().
453 * So we return here if isdn_tty_write() is in the
456 atomic_inc(&info->xmit_lock);
457 if (!(atomic_dec_and_test(&info->xmit_lock)))
459 if (info->isdn_driver < 0) {
460 info->xmit_count = 0;
463 skb_res = dev->drv[info->isdn_driver]->interface->hl_hdrlen + 4;
464 #ifdef CONFIG_ISDN_AUDIO
465 if (info->vonline & 2)
466 audio_len = buflen * voice_cf[info->emu.vpar[3]];
469 skb = dev_alloc_skb(skb_res + buflen + audio_len);
471 skb = dev_alloc_skb(skb_res + buflen);
475 "isdn_tty: Out of memory in ttyI%d senddown\n",
479 skb_reserve(skb, skb_res);
480 memcpy(skb_put(skb, buflen), info->port.xmit_buf, buflen);
481 info->xmit_count = 0;
482 #ifdef CONFIG_ISDN_AUDIO
483 if (info->vonline & 2) {
484 /* For now, ifmt is fixed to 1 (alaw), since this
485 * is used with ISDN everywhere in the world, except
486 * US, Canada and Japan.
487 * Later, when US-ISDN protocols are implemented,
488 * this setting will depend on the D-channel protocol.
492 /* voice conversion/decompression */
493 switch (info->emu.vpar[3]) {
497 /* adpcm, compatible to ZyXel 1496 modem
498 * with ROM revision 6.01
500 audio_len = isdn_audio_adpcm2xlaw(info->adpcms,
503 skb_put(skb, audio_len),
505 skb_pull(skb, buflen);
506 skb_trim(skb, audio_len);
511 isdn_audio_alaw2ulaw(skb->data,
517 isdn_audio_ulaw2alaw(skb->data,
522 #endif /* CONFIG_ISDN_AUDIO */
523 if (info->emu.mdmreg[REG_T70] & BIT_T70) {
524 /* Add T.70 simplified header */
525 if (info->emu.mdmreg[REG_T70] & BIT_T70_EXT)
526 memcpy(skb_push(skb, 2), "\1\0", 2);
528 memcpy(skb_push(skb, 4), "\1\0\1\0", 4);
530 skb_queue_tail(&info->xmit_queue, skb);
533 /************************************************************
537 * mostly "stolen" from original Linux-serial.c and friends.
539 ************************************************************/
541 /* The next routine is called once from within timer-interrupt
542 * triggered within isdn_tty_modem_ncarrier(). It calls
543 * isdn_tty_modem_result() to stuff a "NO CARRIER" Message
544 * into the tty's buffer.
547 isdn_tty_modem_do_ncarrier(unsigned long data)
549 modem_info *info = (modem_info *) data;
550 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
553 /* Next routine is called, whenever the DTR-signal is raised.
554 * It checks the ncarrier-flag, and triggers the above routine
555 * when necessary. The ncarrier-flag is set, whenever DTR goes
559 isdn_tty_modem_ncarrier(modem_info *info)
561 if (info->ncarrier) {
562 info->nc_timer.expires = jiffies + HZ;
563 add_timer(&info->nc_timer);
568 * return the usage calculated by si and layer 2 protocol
571 isdn_calc_usage(int si, int l2)
573 int usg = ISDN_USAGE_MODEM;
575 #ifdef CONFIG_ISDN_AUDIO
578 case ISDN_PROTO_L2_MODEM:
579 usg = ISDN_USAGE_MODEM;
581 #ifdef CONFIG_ISDN_TTY_FAX
582 case ISDN_PROTO_L2_FAX:
583 usg = ISDN_USAGE_FAX;
586 case ISDN_PROTO_L2_TRANS:
588 usg = ISDN_USAGE_VOICE;
596 /* isdn_tty_dial() performs dialing of a tty an the necessary
597 * setup of the lower levels before that.
600 isdn_tty_dial(char *n, modem_info *info, atemu *m)
602 int usg = ISDN_USAGE_MODEM;
604 int l2 = m->mdmreg[REG_L2PROT];
610 for (j = 7; j >= 0; j--)
611 if (m->mdmreg[REG_SI1] & (1 << j)) {
615 usg = isdn_calc_usage(si, l2);
616 #ifdef CONFIG_ISDN_AUDIO
618 (l2 != ISDN_PROTO_L2_MODEM)
619 #ifdef CONFIG_ISDN_TTY_FAX
620 && (l2 != ISDN_PROTO_L2_FAX)
623 l2 = ISDN_PROTO_L2_TRANS;
624 usg = ISDN_USAGE_VOICE;
627 m->mdmreg[REG_SI1I] = si2bit[si];
628 spin_lock_irqsave(&dev->lock, flags);
629 i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn);
631 spin_unlock_irqrestore(&dev->lock, flags);
632 isdn_tty_modem_result(RESULT_NO_DIALTONE, info);
634 info->isdn_driver = dev->drvmap[i];
635 info->isdn_channel = dev->chanmap[i];
637 dev->m_idx[i] = info->line;
638 dev->usage[i] |= ISDN_USAGE_OUTGOING;
640 strcpy(info->last_num, n);
642 spin_unlock_irqrestore(&dev->lock, flags);
643 cmd.driver = info->isdn_driver;
644 cmd.arg = info->isdn_channel;
645 cmd.command = ISDN_CMD_CLREAZ;
647 strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver));
648 cmd.driver = info->isdn_driver;
649 cmd.command = ISDN_CMD_SETEAZ;
651 cmd.driver = info->isdn_driver;
652 cmd.command = ISDN_CMD_SETL2;
654 cmd.arg = info->isdn_channel + (l2 << 8);
656 cmd.driver = info->isdn_driver;
657 cmd.command = ISDN_CMD_SETL3;
658 cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8);
659 #ifdef CONFIG_ISDN_TTY_FAX
660 if (l2 == ISDN_PROTO_L2_FAX) {
661 cmd.parm.fax = info->fax;
662 info->fax->direction = ISDN_TTY_FAX_CONN_OUT;
666 cmd.driver = info->isdn_driver;
667 cmd.arg = info->isdn_channel;
668 sprintf(cmd.parm.setup.phone, "%s", n);
669 sprintf(cmd.parm.setup.eazmsn, "%s",
670 isdn_map_eaz2msn(m->msn, info->isdn_driver));
671 cmd.parm.setup.si1 = si;
672 cmd.parm.setup.si2 = m->mdmreg[REG_SI2];
673 cmd.command = ISDN_CMD_DIAL;
675 info->emu.carrierwait = 0;
676 strcpy(dev->num[i], n);
679 isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1);
683 /* isdn_tty_hangup() disassociates a tty from the real
684 * ISDN-line (hangup). The usage-status is cleared
685 * and some cleanup is done also.
688 isdn_tty_modem_hup(modem_info *info, int local)
696 di = info->isdn_driver;
697 ch = info->isdn_channel;
698 if (di < 0 || ch < 0)
701 info->isdn_driver = -1;
702 info->isdn_channel = -1;
704 #ifdef ISDN_DEBUG_MODEM_HUP
705 printk(KERN_DEBUG "Mhup ttyI%d\n", info->line);
708 isdn_tty_flush_buffer(info->port.tty);
710 info->last_lhup = local;
712 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
714 #ifdef CONFIG_ISDN_AUDIO
716 #ifdef CONFIG_ISDN_TTY_FAX
718 info->fax->phase = ISDN_FAX_PHASE_IDLE;
720 info->emu.vpar[4] = 0;
721 info->emu.vpar[5] = 8;
722 kfree(info->dtmf_state);
723 info->dtmf_state = NULL;
724 kfree(info->silence_state);
725 info->silence_state = NULL;
731 if ((info->msr & UART_MSR_RI) &&
732 (info->emu.mdmreg[REG_RUNG] & BIT_RUNG))
733 isdn_tty_modem_result(RESULT_RUNG, info);
734 info->msr &= ~(UART_MSR_DCD | UART_MSR_RI);
735 info->lsr |= UART_LSR_TEMT;
739 cmd.command = ISDN_CMD_HANGUP;
744 isdn_all_eaz(di, ch);
745 info->emu.mdmreg[REG_RINGCNT] = 0;
746 isdn_free_channel(di, ch, 0);
748 if (info->drv_index >= 0) {
749 dev->m_idx[info->drv_index] = -1;
750 info->drv_index = -1;
755 * Begin of a CAPI like interface, currently used only for
756 * supplementary service (CAPI 2.0 part III)
758 #include <linux/isdn/capicmd.h>
759 #include <linux/module.h>
762 isdn_tty_capi_facility(capi_msg *cm) {
763 return (-1); /* dummy */
766 /* isdn_tty_suspend() tries to suspend the current tty connection
769 isdn_tty_suspend(char *id, modem_info *info, atemu *m)
778 #ifdef ISDN_DEBUG_MODEM_SERVICES
779 printk(KERN_DEBUG "Msusp ttyI%d\n", info->line);
782 if ((info->isdn_driver >= 0)) {
783 cmd.parm.cmsg.Length = l + 18;
784 cmd.parm.cmsg.Command = CAPI_FACILITY;
785 cmd.parm.cmsg.Subcommand = CAPI_REQ;
786 cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1;
787 cmd.parm.cmsg.para[0] = 3; /* 16 bit 0x0003 suplementary service */
788 cmd.parm.cmsg.para[1] = 0;
789 cmd.parm.cmsg.para[2] = l + 3;
790 cmd.parm.cmsg.para[3] = 4; /* 16 bit 0x0004 Suspend */
791 cmd.parm.cmsg.para[4] = 0;
792 cmd.parm.cmsg.para[5] = l;
793 strncpy(&cmd.parm.cmsg.para[6], id, l);
794 cmd.command = CAPI_PUT_MESSAGE;
795 cmd.driver = info->isdn_driver;
796 cmd.arg = info->isdn_channel;
801 /* isdn_tty_resume() tries to resume a suspended call
802 * setup of the lower levels before that. unfortunately here is no
803 * checking for compatibility of used protocols implemented by Q931
804 * It does the same things like isdn_tty_dial, the last command
805 * is different, may be we can merge it.
809 isdn_tty_resume(char *id, modem_info *info, atemu *m)
811 int usg = ISDN_USAGE_MODEM;
813 int l2 = m->mdmreg[REG_L2PROT];
821 for (j = 7; j >= 0; j--)
822 if (m->mdmreg[REG_SI1] & (1 << j)) {
826 usg = isdn_calc_usage(si, l2);
827 #ifdef CONFIG_ISDN_AUDIO
829 (l2 != ISDN_PROTO_L2_MODEM)
830 #ifdef CONFIG_ISDN_TTY_FAX
831 && (l2 != ISDN_PROTO_L2_FAX)
834 l2 = ISDN_PROTO_L2_TRANS;
835 usg = ISDN_USAGE_VOICE;
838 m->mdmreg[REG_SI1I] = si2bit[si];
839 spin_lock_irqsave(&dev->lock, flags);
840 i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn);
842 spin_unlock_irqrestore(&dev->lock, flags);
843 isdn_tty_modem_result(RESULT_NO_DIALTONE, info);
845 info->isdn_driver = dev->drvmap[i];
846 info->isdn_channel = dev->chanmap[i];
848 dev->m_idx[i] = info->line;
849 dev->usage[i] |= ISDN_USAGE_OUTGOING;
851 // strcpy(info->last_num, n);
853 spin_unlock_irqrestore(&dev->lock, flags);
854 cmd.driver = info->isdn_driver;
855 cmd.arg = info->isdn_channel;
856 cmd.command = ISDN_CMD_CLREAZ;
858 strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver));
859 cmd.driver = info->isdn_driver;
860 cmd.command = ISDN_CMD_SETEAZ;
862 cmd.driver = info->isdn_driver;
863 cmd.command = ISDN_CMD_SETL2;
865 cmd.arg = info->isdn_channel + (l2 << 8);
867 cmd.driver = info->isdn_driver;
868 cmd.command = ISDN_CMD_SETL3;
869 cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8);
871 cmd.driver = info->isdn_driver;
872 cmd.arg = info->isdn_channel;
873 cmd.parm.cmsg.Length = l + 18;
874 cmd.parm.cmsg.Command = CAPI_FACILITY;
875 cmd.parm.cmsg.Subcommand = CAPI_REQ;
876 cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1;
877 cmd.parm.cmsg.para[0] = 3; /* 16 bit 0x0003 suplementary service */
878 cmd.parm.cmsg.para[1] = 0;
879 cmd.parm.cmsg.para[2] = l + 3;
880 cmd.parm.cmsg.para[3] = 5; /* 16 bit 0x0005 Resume */
881 cmd.parm.cmsg.para[4] = 0;
882 cmd.parm.cmsg.para[5] = l;
883 strncpy(&cmd.parm.cmsg.para[6], id, l);
884 cmd.command = CAPI_PUT_MESSAGE;
886 // strcpy(dev->num[i], n);
889 isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1);
893 /* isdn_tty_send_msg() sends a message to a HL driver
894 * This is used for hybrid modem cards to send AT commands to it
898 isdn_tty_send_msg(modem_info *info, atemu *m, char *msg)
900 int usg = ISDN_USAGE_MODEM;
902 int l2 = m->mdmreg[REG_L2PROT];
911 isdn_tty_modem_result(RESULT_ERROR, info);
914 for (j = 7; j >= 0; j--)
915 if (m->mdmreg[REG_SI1] & (1 << j)) {
919 usg = isdn_calc_usage(si, l2);
920 #ifdef CONFIG_ISDN_AUDIO
922 (l2 != ISDN_PROTO_L2_MODEM)
923 #ifdef CONFIG_ISDN_TTY_FAX
924 && (l2 != ISDN_PROTO_L2_FAX)
927 l2 = ISDN_PROTO_L2_TRANS;
928 usg = ISDN_USAGE_VOICE;
931 m->mdmreg[REG_SI1I] = si2bit[si];
932 spin_lock_irqsave(&dev->lock, flags);
933 i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn);
935 spin_unlock_irqrestore(&dev->lock, flags);
936 isdn_tty_modem_result(RESULT_NO_DIALTONE, info);
938 info->isdn_driver = dev->drvmap[i];
939 info->isdn_channel = dev->chanmap[i];
941 dev->m_idx[i] = info->line;
942 dev->usage[i] |= ISDN_USAGE_OUTGOING;
945 spin_unlock_irqrestore(&dev->lock, flags);
946 cmd.driver = info->isdn_driver;
947 cmd.arg = info->isdn_channel;
948 cmd.command = ISDN_CMD_CLREAZ;
950 strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver));
951 cmd.driver = info->isdn_driver;
952 cmd.command = ISDN_CMD_SETEAZ;
954 cmd.driver = info->isdn_driver;
955 cmd.command = ISDN_CMD_SETL2;
957 cmd.arg = info->isdn_channel + (l2 << 8);
959 cmd.driver = info->isdn_driver;
960 cmd.command = ISDN_CMD_SETL3;
961 cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8);
963 cmd.driver = info->isdn_driver;
964 cmd.arg = info->isdn_channel;
965 cmd.parm.cmsg.Length = l + 14;
966 cmd.parm.cmsg.Command = CAPI_MANUFACTURER;
967 cmd.parm.cmsg.Subcommand = CAPI_REQ;
968 cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1;
969 cmd.parm.cmsg.para[0] = l + 1;
970 strncpy(&cmd.parm.cmsg.para[1], msg, l);
971 cmd.parm.cmsg.para[l + 1] = 0xd;
972 cmd.command = CAPI_PUT_MESSAGE;
973 /* info->dialing = 1;
974 strcpy(dev->num[i], n);
982 isdn_tty_paranoia_check(modem_info *info, char *name, const char *routine)
984 #ifdef MODEM_PARANOIA_CHECK
986 printk(KERN_WARNING "isdn_tty: null info_struct for %s in %s\n",
990 if (info->magic != ISDN_ASYNC_MAGIC) {
991 printk(KERN_WARNING "isdn_tty: bad magic for modem struct %s in %s\n",
1000 * This routine is called to set the UART divisor registers to match
1001 * the specified baud rate for a serial port.
1004 isdn_tty_change_speed(modem_info *info)
1006 struct tty_port *port = &info->port;
1014 cflag = port->tty->termios.c_cflag;
1016 quot = i = cflag & CBAUD;
1020 port->tty->termios.c_cflag &= ~CBAUDEX;
1025 info->mcr |= UART_MCR_DTR;
1026 isdn_tty_modem_ncarrier(info);
1028 info->mcr &= ~UART_MCR_DTR;
1029 if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) {
1030 #ifdef ISDN_DEBUG_MODEM_HUP
1031 printk(KERN_DEBUG "Mhup in changespeed\n");
1035 isdn_tty_modem_reset_regs(info, 0);
1036 isdn_tty_modem_hup(info, 1);
1040 /* byte size and parity */
1041 cval = cflag & (CSIZE | CSTOPB);
1044 cval |= UART_LCR_PARITY;
1045 if (!(cflag & PARODD))
1046 cval |= UART_LCR_EPAR;
1048 /* CTS flow control flag and modem status interrupts */
1049 if (cflag & CRTSCTS) {
1050 port->flags |= ASYNC_CTS_FLOW;
1052 port->flags &= ~ASYNC_CTS_FLOW;
1054 port->flags &= ~ASYNC_CHECK_CD;
1056 port->flags |= ASYNC_CHECK_CD;
1061 isdn_tty_startup(modem_info *info)
1063 if (info->port.flags & ASYNC_INITIALIZED)
1065 isdn_lock_drivers();
1066 #ifdef ISDN_DEBUG_MODEM_OPEN
1067 printk(KERN_DEBUG "starting up ttyi%d ...\n", info->line);
1070 * Now, initialize the UART
1072 info->mcr = UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2;
1074 clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
1076 * and set the speed of the serial port
1078 isdn_tty_change_speed(info);
1080 info->port.flags |= ASYNC_INITIALIZED;
1081 info->msr |= (UART_MSR_DSR | UART_MSR_CTS);
1082 info->send_outstanding = 0;
1087 * This routine will shutdown a serial port; interrupts are disabled, and
1088 * DTR is dropped if the hangup on close termio flag is on.
1091 isdn_tty_shutdown(modem_info *info)
1093 if (!(info->port.flags & ASYNC_INITIALIZED))
1095 #ifdef ISDN_DEBUG_MODEM_OPEN
1096 printk(KERN_DEBUG "Shutting down isdnmodem port %d ....\n", info->line);
1098 isdn_unlock_drivers();
1099 info->msr &= ~UART_MSR_RI;
1100 if (!info->port.tty || (info->port.tty->termios.c_cflag & HUPCL)) {
1101 info->mcr &= ~(UART_MCR_DTR | UART_MCR_RTS);
1102 if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) {
1103 isdn_tty_modem_reset_regs(info, 0);
1104 #ifdef ISDN_DEBUG_MODEM_HUP
1105 printk(KERN_DEBUG "Mhup in isdn_tty_shutdown\n");
1107 isdn_tty_modem_hup(info, 1);
1111 set_bit(TTY_IO_ERROR, &info->port.tty->flags);
1113 info->port.flags &= ~ASYNC_INITIALIZED;
1116 /* isdn_tty_write() is the main send-routine. It is called from the upper
1117 * levels within the kernel to perform sending data. Depending on the
1118 * online-flag it either directs output to the at-command-interpreter or
1119 * to the lower level. Additional tasks done here:
1120 * - If online, check for escape-sequence (+++)
1121 * - If sending audio-data, call isdn_tty_DLEdown() to parse DLE-codes.
1122 * - If receiving audio-data, call isdn_tty_end_vrx() to abort if needed.
1123 * - If dialing, abort dial.
1126 isdn_tty_write(struct tty_struct *tty, const u_char *buf, int count)
1130 modem_info *info = (modem_info *) tty->driver_data;
1131 atemu *m = &info->emu;
1133 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_write"))
1135 /* See isdn_tty_senddown() */
1136 atomic_inc(&info->xmit_lock);
1139 if (c > info->xmit_size - info->xmit_count)
1140 c = info->xmit_size - info->xmit_count;
1141 if (info->isdn_driver >= 0 && c > dev->drv[info->isdn_driver]->maxbufsize)
1142 c = dev->drv[info->isdn_driver]->maxbufsize;
1145 if ((info->online > 1)
1146 #ifdef CONFIG_ISDN_AUDIO
1147 || (info->vonline & 3)
1150 #ifdef CONFIG_ISDN_AUDIO
1153 isdn_tty_check_esc(buf, m->mdmreg[REG_ESC], c,
1156 memcpy(&info->port.xmit_buf[info->xmit_count], buf, c);
1157 #ifdef CONFIG_ISDN_AUDIO
1158 if (info->vonline) {
1159 int cc = isdn_tty_handleDLEdown(info, m, c);
1160 if (info->vonline & 2) {
1162 /* If DLE decoding results in zero-transmit, but
1163 * c originally was non-zero, do a wakeup.
1166 info->msr |= UART_MSR_CTS;
1167 info->lsr |= UART_LSR_TEMT;
1169 info->xmit_count += cc;
1171 if ((info->vonline & 3) == 1) {
1172 /* Do NOT handle Ctrl-Q or Ctrl-S
1173 * when in full-duplex audio mode.
1175 if (isdn_tty_end_vrx(buf, c)) {
1176 info->vonline &= ~1;
1177 #ifdef ISDN_DEBUG_MODEM_VOICE
1179 "got !^Q/^S, send DLE-ETX,VCON on ttyI%d\n",
1182 isdn_tty_at_cout("\020\003\r\nVCON\r\n", info);
1186 if (TTY_IS_FCLASS1(info)) {
1187 int cc = isdn_tty_handleDLEdown(info, m, c);
1189 if (info->vonline & 4) { /* ETX seen */
1192 c.command = ISDN_CMD_FAXCMD;
1193 c.driver = info->isdn_driver;
1194 c.arg = info->isdn_channel;
1195 c.parm.aux.cmd = ISDN_FAX_CLASS1_CTRL;
1196 c.parm.aux.subcmd = ETX;
1200 #ifdef ISDN_DEBUG_MODEM_VOICE
1201 printk(KERN_DEBUG "fax dle cc/c %d/%d\n", cc, c);
1203 info->xmit_count += cc;
1206 info->xmit_count += c;
1208 info->msr |= UART_MSR_CTS;
1209 info->lsr |= UART_LSR_TEMT;
1210 if (info->dialing) {
1212 #ifdef ISDN_DEBUG_MODEM_HUP
1213 printk(KERN_DEBUG "Mhup in isdn_tty_write\n");
1215 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
1216 isdn_tty_modem_hup(info, 1);
1218 c = isdn_tty_edit_at(buf, c, info);
1224 atomic_dec(&info->xmit_lock);
1225 if ((info->xmit_count) || !skb_queue_empty(&info->xmit_queue)) {
1226 if (m->mdmreg[REG_DXMT] & BIT_DXMT) {
1227 isdn_tty_senddown(info);
1228 isdn_tty_tint(info);
1230 isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, 1);
1236 isdn_tty_write_room(struct tty_struct *tty)
1238 modem_info *info = (modem_info *) tty->driver_data;
1241 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_write_room"))
1244 return info->xmit_size;
1245 ret = info->xmit_size - info->xmit_count;
1246 return (ret < 0) ? 0 : ret;
1250 isdn_tty_chars_in_buffer(struct tty_struct *tty)
1252 modem_info *info = (modem_info *) tty->driver_data;
1254 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_chars_in_buffer"))
1258 return (info->xmit_count);
1262 isdn_tty_flush_buffer(struct tty_struct *tty)
1269 info = (modem_info *) tty->driver_data;
1270 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_flush_buffer")) {
1273 isdn_tty_cleanup_xmit(info);
1274 info->xmit_count = 0;
1279 isdn_tty_flush_chars(struct tty_struct *tty)
1281 modem_info *info = (modem_info *) tty->driver_data;
1283 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_flush_chars"))
1285 if ((info->xmit_count) || !skb_queue_empty(&info->xmit_queue))
1286 isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, 1);
1290 * ------------------------------------------------------------
1291 * isdn_tty_throttle()
1293 * This routine is called by the upper-layer tty layer to signal that
1294 * incoming characters should be throttled.
1295 * ------------------------------------------------------------
1298 isdn_tty_throttle(struct tty_struct *tty)
1300 modem_info *info = (modem_info *) tty->driver_data;
1302 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_throttle"))
1305 info->x_char = STOP_CHAR(tty);
1306 info->mcr &= ~UART_MCR_RTS;
1310 isdn_tty_unthrottle(struct tty_struct *tty)
1312 modem_info *info = (modem_info *) tty->driver_data;
1314 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_unthrottle"))
1320 info->x_char = START_CHAR(tty);
1322 info->mcr |= UART_MCR_RTS;
1326 * ------------------------------------------------------------
1327 * isdn_tty_ioctl() and friends
1328 * ------------------------------------------------------------
1332 * isdn_tty_get_lsr_info - get line status register info
1334 * Purpose: Let user call ioctl() to get info when the UART physically
1335 * is emptied. On bus types like RS485, the transmitter must
1336 * release the bus after transmitting. This must be done when
1337 * the transmit shift register is empty, not be done when the
1338 * transmit holding register is empty. This functionality
1339 * allows RS485 driver to be written in user space.
1342 isdn_tty_get_lsr_info(modem_info *info, uint __user *value)
1348 result = ((status & UART_LSR_TEMT) ? TIOCSER_TEMT : 0);
1349 return put_user(result, value);
1354 isdn_tty_tiocmget(struct tty_struct *tty)
1356 modem_info *info = (modem_info *) tty->driver_data;
1357 u_char control, status;
1359 if (isdn_tty_paranoia_check(info, tty->name, __func__))
1361 if (tty->flags & (1 << TTY_IO_ERROR))
1364 mutex_lock(&modem_info_mutex);
1365 #ifdef ISDN_DEBUG_MODEM_IOCTL
1366 printk(KERN_DEBUG "ttyI%d ioctl TIOCMGET\n", info->line);
1369 control = info->mcr;
1371 mutex_unlock(&modem_info_mutex);
1372 return ((control & UART_MCR_RTS) ? TIOCM_RTS : 0)
1373 | ((control & UART_MCR_DTR) ? TIOCM_DTR : 0)
1374 | ((status & UART_MSR_DCD) ? TIOCM_CAR : 0)
1375 | ((status & UART_MSR_RI) ? TIOCM_RNG : 0)
1376 | ((status & UART_MSR_DSR) ? TIOCM_DSR : 0)
1377 | ((status & UART_MSR_CTS) ? TIOCM_CTS : 0);
1381 isdn_tty_tiocmset(struct tty_struct *tty,
1382 unsigned int set, unsigned int clear)
1384 modem_info *info = (modem_info *) tty->driver_data;
1386 if (isdn_tty_paranoia_check(info, tty->name, __func__))
1388 if (tty->flags & (1 << TTY_IO_ERROR))
1391 #ifdef ISDN_DEBUG_MODEM_IOCTL
1392 printk(KERN_DEBUG "ttyI%d ioctl TIOCMxxx: %x %x\n", info->line, set, clear);
1395 mutex_lock(&modem_info_mutex);
1396 if (set & TIOCM_RTS)
1397 info->mcr |= UART_MCR_RTS;
1398 if (set & TIOCM_DTR) {
1399 info->mcr |= UART_MCR_DTR;
1400 isdn_tty_modem_ncarrier(info);
1403 if (clear & TIOCM_RTS)
1404 info->mcr &= ~UART_MCR_RTS;
1405 if (clear & TIOCM_DTR) {
1406 info->mcr &= ~UART_MCR_DTR;
1407 if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) {
1408 isdn_tty_modem_reset_regs(info, 0);
1409 #ifdef ISDN_DEBUG_MODEM_HUP
1410 printk(KERN_DEBUG "Mhup in TIOCMSET\n");
1414 isdn_tty_modem_hup(info, 1);
1417 mutex_unlock(&modem_info_mutex);
1422 isdn_tty_ioctl(struct tty_struct *tty, uint cmd, ulong arg)
1424 modem_info *info = (modem_info *) tty->driver_data;
1427 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_ioctl"))
1429 if (tty->flags & (1 << TTY_IO_ERROR))
1432 case TCSBRK: /* SVID version: non-zero arg --> no break */
1433 #ifdef ISDN_DEBUG_MODEM_IOCTL
1434 printk(KERN_DEBUG "ttyI%d ioctl TCSBRK\n", info->line);
1436 retval = tty_check_change(tty);
1439 tty_wait_until_sent(tty, 0);
1441 case TCSBRKP: /* support for POSIX tcsendbreak() */
1442 #ifdef ISDN_DEBUG_MODEM_IOCTL
1443 printk(KERN_DEBUG "ttyI%d ioctl TCSBRKP\n", info->line);
1445 retval = tty_check_change(tty);
1448 tty_wait_until_sent(tty, 0);
1450 case TIOCSERGETLSR: /* Get line status register */
1451 #ifdef ISDN_DEBUG_MODEM_IOCTL
1452 printk(KERN_DEBUG "ttyI%d ioctl TIOCSERGETLSR\n", info->line);
1454 return isdn_tty_get_lsr_info(info, (uint __user *) arg);
1456 #ifdef ISDN_DEBUG_MODEM_IOCTL
1457 printk(KERN_DEBUG "UNKNOWN ioctl 0x%08x on ttyi%d\n", cmd, info->line);
1459 return -ENOIOCTLCMD;
1465 isdn_tty_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
1467 modem_info *info = (modem_info *) tty->driver_data;
1470 isdn_tty_change_speed(info);
1472 if (tty->termios.c_cflag == old_termios->c_cflag &&
1473 tty->termios.c_ispeed == old_termios->c_ispeed &&
1474 tty->termios.c_ospeed == old_termios->c_ospeed)
1476 isdn_tty_change_speed(info);
1477 if ((old_termios->c_cflag & CRTSCTS) &&
1478 !(tty->termios.c_cflag & CRTSCTS))
1479 tty->hw_stopped = 0;
1484 * ------------------------------------------------------------
1485 * isdn_tty_open() and friends
1486 * ------------------------------------------------------------
1489 static int isdn_tty_install(struct tty_driver *driver, struct tty_struct *tty)
1491 modem_info *info = &dev->mdm.info[tty->index];
1493 if (isdn_tty_paranoia_check(info, tty->name, __func__))
1496 tty->driver_data = info;
1498 return tty_port_install(&info->port, driver, tty);
1502 * This routine is called whenever a serial port is opened. It
1503 * enables interrupts for a serial port, linking in its async structure into
1504 * the IRQ chain. It also performs the serial-specific
1505 * initialization for the tty structure.
1508 isdn_tty_open(struct tty_struct *tty, struct file *filp)
1510 modem_info *info = tty->driver_data;
1511 struct tty_port *port = &info->port;
1514 #ifdef ISDN_DEBUG_MODEM_OPEN
1515 printk(KERN_DEBUG "isdn_tty_open %s, count = %d\n", tty->name,
1521 * Start up serial port
1523 retval = isdn_tty_startup(info);
1525 #ifdef ISDN_DEBUG_MODEM_OPEN
1526 printk(KERN_DEBUG "isdn_tty_open return after startup\n");
1530 retval = tty_port_block_til_ready(port, tty, filp);
1532 #ifdef ISDN_DEBUG_MODEM_OPEN
1533 printk(KERN_DEBUG "isdn_tty_open return after isdn_tty_block_til_ready \n");
1537 #ifdef ISDN_DEBUG_MODEM_OPEN
1538 printk(KERN_DEBUG "isdn_tty_open ttyi%d successful...\n", info->line);
1541 #ifdef ISDN_DEBUG_MODEM_OPEN
1542 printk(KERN_DEBUG "isdn_tty_open normal exit\n");
1548 isdn_tty_close(struct tty_struct *tty, struct file *filp)
1550 modem_info *info = (modem_info *) tty->driver_data;
1551 struct tty_port *port = &info->port;
1554 if (!info || isdn_tty_paranoia_check(info, tty->name, "isdn_tty_close"))
1556 if (tty_hung_up_p(filp)) {
1557 #ifdef ISDN_DEBUG_MODEM_OPEN
1558 printk(KERN_DEBUG "isdn_tty_close return after tty_hung_up_p\n");
1562 if ((tty->count == 1) && (port->count != 1)) {
1564 * Uh, oh. tty->count is 1, which means that the tty
1565 * structure will be freed. Info->count should always
1566 * be one in these conditions. If it's greater than
1567 * one, we've got real problems, since it means the
1568 * serial port won't be shutdown.
1570 printk(KERN_ERR "isdn_tty_close: bad port count; tty->count is 1, "
1571 "info->count is %d\n", port->count);
1574 if (--port->count < 0) {
1575 printk(KERN_ERR "isdn_tty_close: bad port count for ttyi%d: %d\n",
1576 info->line, port->count);
1580 #ifdef ISDN_DEBUG_MODEM_OPEN
1581 printk(KERN_DEBUG "isdn_tty_close after info->count != 0\n");
1585 port->flags |= ASYNC_CLOSING;
1589 * At this point we stop accepting input. To do this, we
1590 * disable the receive line status interrupts, and tell the
1591 * interrupt driver to stop checking the data ready bit in the
1592 * line status register.
1594 if (port->flags & ASYNC_INITIALIZED) {
1595 tty_wait_until_sent_from_close(tty, 3000); /* 30 seconds timeout */
1597 * Before we drop DTR, make sure the UART transmitter
1598 * has completely drained; this is especially
1599 * important if there is a transmit FIFO!
1601 timeout = jiffies + HZ;
1602 while (!(info->lsr & UART_LSR_TEMT)) {
1603 schedule_timeout_interruptible(20);
1604 if (time_after(jiffies, timeout))
1609 isdn_tty_shutdown(info);
1610 isdn_tty_flush_buffer(tty);
1611 tty_ldisc_flush(tty);
1615 tty_port_close_end(port, tty);
1616 #ifdef ISDN_DEBUG_MODEM_OPEN
1617 printk(KERN_DEBUG "isdn_tty_close normal exit\n");
1622 * isdn_tty_hangup() --- called by tty_hangup() when a hangup is signaled.
1625 isdn_tty_hangup(struct tty_struct *tty)
1627 modem_info *info = (modem_info *) tty->driver_data;
1628 struct tty_port *port = &info->port;
1630 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_hangup"))
1632 isdn_tty_shutdown(info);
1634 port->flags &= ~ASYNC_NORMAL_ACTIVE;
1636 wake_up_interruptible(&port->open_wait);
1639 /* This routine initializes all emulator-data.
1642 isdn_tty_reset_profile(atemu *m)
1655 m->profile[11] = 70;
1656 m->profile[12] = 0x45;
1658 m->profile[14] = ISDN_PROTO_L2_X75I;
1659 m->profile[15] = ISDN_PROTO_L3_TRANS;
1660 m->profile[16] = ISDN_SERIAL_XMIT_SIZE / 16;
1661 m->profile[17] = ISDN_MODEM_WINSIZE;
1670 #ifdef CONFIG_ISDN_AUDIO
1672 isdn_tty_modem_reset_vpar(atemu *m)
1674 m->vpar[0] = 2; /* Voice-device (2 = phone line) */
1675 m->vpar[1] = 0; /* Silence detection level (0 = none ) */
1676 m->vpar[2] = 70; /* Silence interval (7 sec. ) */
1677 m->vpar[3] = 2; /* Compression type (1 = ADPCM-2 ) */
1678 m->vpar[4] = 0; /* DTMF detection level (0 = softcode ) */
1679 m->vpar[5] = 8; /* DTMF interval (8 * 5 ms. ) */
1683 #ifdef CONFIG_ISDN_TTY_FAX
1685 isdn_tty_modem_reset_faxpar(modem_info *info)
1687 T30_s *f = info->fax;
1690 f->phase = ISDN_FAX_PHASE_IDLE;
1692 f->resolution = 1; /* fine */
1693 f->rate = 5; /* 14400 bit/s */
1700 memset(&f->id[0], 32, FAXIDLEN - 1);
1701 f->id[FAXIDLEN - 1] = 0;
1712 memset(&f->pollid[0], 32, FAXIDLEN - 1);
1713 f->pollid[FAXIDLEN - 1] = 0;
1718 isdn_tty_modem_reset_regs(modem_info *info, int force)
1720 atemu *m = &info->emu;
1721 if ((m->mdmreg[REG_DTRR] & BIT_DTRR) || force) {
1722 memcpy(m->mdmreg, m->profile, ISDN_MODEM_NUMREG);
1723 memcpy(m->msn, m->pmsn, ISDN_MSNLEN);
1724 memcpy(m->lmsn, m->plmsn, ISDN_LMSNLEN);
1725 info->xmit_size = m->mdmreg[REG_PSIZE] * 16;
1727 #ifdef CONFIG_ISDN_AUDIO
1728 isdn_tty_modem_reset_vpar(m);
1730 #ifdef CONFIG_ISDN_TTY_FAX
1731 isdn_tty_modem_reset_faxpar(info);
1737 modem_write_profile(atemu *m)
1739 memcpy(m->profile, m->mdmreg, ISDN_MODEM_NUMREG);
1740 memcpy(m->pmsn, m->msn, ISDN_MSNLEN);
1741 memcpy(m->plmsn, m->lmsn, ISDN_LMSNLEN);
1743 send_sig(SIGIO, dev->profd, 1);
1746 static const struct tty_operations modem_ops = {
1747 .install = isdn_tty_install,
1748 .open = isdn_tty_open,
1749 .close = isdn_tty_close,
1750 .write = isdn_tty_write,
1751 .flush_chars = isdn_tty_flush_chars,
1752 .write_room = isdn_tty_write_room,
1753 .chars_in_buffer = isdn_tty_chars_in_buffer,
1754 .flush_buffer = isdn_tty_flush_buffer,
1755 .ioctl = isdn_tty_ioctl,
1756 .throttle = isdn_tty_throttle,
1757 .unthrottle = isdn_tty_unthrottle,
1758 .set_termios = isdn_tty_set_termios,
1759 .hangup = isdn_tty_hangup,
1760 .tiocmget = isdn_tty_tiocmget,
1761 .tiocmset = isdn_tty_tiocmset,
1764 static int isdn_tty_carrier_raised(struct tty_port *port)
1766 modem_info *info = container_of(port, modem_info, port);
1767 return info->msr & UART_MSR_DCD;
1770 static const struct tty_port_operations isdn_tty_port_ops = {
1771 .carrier_raised = isdn_tty_carrier_raised,
1775 isdn_tty_modem_init(void)
1782 m->tty_modem = alloc_tty_driver(ISDN_MAX_CHANNELS);
1785 m->tty_modem->name = "ttyI";
1786 m->tty_modem->major = ISDN_TTY_MAJOR;
1787 m->tty_modem->minor_start = 0;
1788 m->tty_modem->type = TTY_DRIVER_TYPE_SERIAL;
1789 m->tty_modem->subtype = SERIAL_TYPE_NORMAL;
1790 m->tty_modem->init_termios = tty_std_termios;
1791 m->tty_modem->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
1792 m->tty_modem->flags = TTY_DRIVER_REAL_RAW;
1793 m->tty_modem->driver_name = "isdn_tty";
1794 tty_set_operations(m->tty_modem, &modem_ops);
1795 retval = tty_register_driver(m->tty_modem);
1797 printk(KERN_WARNING "isdn_tty: Couldn't register modem-device\n");
1800 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
1802 #ifdef CONFIG_ISDN_TTY_FAX
1803 if (!(info->fax = kmalloc(sizeof(T30_s), GFP_KERNEL))) {
1804 printk(KERN_ERR "Could not allocate fax t30-buffer\n");
1806 goto err_unregister;
1809 tty_port_init(&info->port);
1810 info->port.ops = &isdn_tty_port_ops;
1811 spin_lock_init(&info->readlock);
1812 sprintf(info->last_cause, "0000");
1813 sprintf(info->last_num, "none");
1815 info->last_lhup = 1;
1818 isdn_tty_reset_profile(&info->emu);
1819 isdn_tty_modem_reset_regs(info, 1);
1820 info->magic = ISDN_ASYNC_MAGIC;
1823 info->isdn_driver = -1;
1824 info->isdn_channel = -1;
1825 info->drv_index = -1;
1826 info->xmit_size = ISDN_SERIAL_XMIT_SIZE;
1827 init_timer(&info->nc_timer);
1828 info->nc_timer.function = isdn_tty_modem_do_ncarrier;
1829 info->nc_timer.data = (unsigned long) info;
1830 skb_queue_head_init(&info->xmit_queue);
1831 #ifdef CONFIG_ISDN_AUDIO
1832 skb_queue_head_init(&info->dtmf_queue);
1834 info->port.xmit_buf = kmalloc(ISDN_SERIAL_XMIT_MAX + 5,
1836 if (!info->port.xmit_buf) {
1837 printk(KERN_ERR "Could not allocate modem xmit-buffer\n");
1839 goto err_unregister;
1841 /* Make room for T.70 header */
1842 info->port.xmit_buf += 4;
1846 for (i--; i >= 0; i--) {
1848 #ifdef CONFIG_ISDN_TTY_FAX
1851 kfree(info->port.xmit_buf - 4);
1852 info->port.xmit_buf = NULL;
1853 tty_port_destroy(&info->port);
1855 tty_unregister_driver(m->tty_modem);
1857 put_tty_driver(m->tty_modem);
1858 m->tty_modem = NULL;
1868 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
1869 info = &dev->mdm.info[i];
1870 isdn_tty_cleanup_xmit(info);
1871 #ifdef CONFIG_ISDN_TTY_FAX
1874 kfree(info->port.xmit_buf - 4);
1875 info->port.xmit_buf = NULL;
1876 tty_port_destroy(&info->port);
1878 tty_unregister_driver(dev->mdm.tty_modem);
1879 put_tty_driver(dev->mdm.tty_modem);
1880 dev->mdm.tty_modem = NULL;
1885 * isdn_tty_match_icall(char *MSN, atemu *tty_emulator, int dev_idx)
1886 * match the MSN against the MSNs (glob patterns) defined for tty_emulator,
1887 * and return 0 for match, 1 for no match, 2 if MSN could match if longer.
1891 isdn_tty_match_icall(char *cid, atemu *emu, int di)
1893 #ifdef ISDN_DEBUG_MODEM_ICALL
1894 printk(KERN_DEBUG "m_fi: msn=%s lmsn=%s mmsn=%s mreg[SI1]=%d mreg[SI2]=%d\n",
1895 emu->msn, emu->lmsn, isdn_map_eaz2msn(emu->msn, di),
1896 emu->mdmreg[REG_SI1], emu->mdmreg[REG_SI2]);
1898 if (strlen(emu->lmsn)) {
1899 char *p = emu->lmsn;
1905 if ((q = strchr(p, ';')))
1907 if ((tmp = isdn_msncmp(cid, isdn_map_eaz2msn(p, di))) > ret)
1909 #ifdef ISDN_DEBUG_MODEM_ICALL
1910 printk(KERN_DEBUG "m_fi: lmsnX=%s mmsn=%s -> tmp=%d\n",
1911 p, isdn_map_eaz2msn(emu->msn, di), tmp);
1926 tmp = isdn_msncmp(cid, isdn_map_eaz2msn(emu->msn, di));
1927 #ifdef ISDN_DEBUG_MODEM_ICALL
1928 printk(KERN_DEBUG "m_fi: mmsn=%s -> tmp=%d\n",
1929 isdn_map_eaz2msn(emu->msn, di), tmp);
1936 * An incoming call-request has arrived.
1937 * Search the tty-devices for an appropriate device and bind
1938 * it to the ISDN-Channel.
1941 * 0 = No matching device found.
1942 * 1 = A matching device found.
1943 * 3 = No match found, but eventually would match, if
1947 isdn_tty_find_icall(int di, int ch, setup_parm *setup)
1958 if (!setup->phone[0]) {
1960 printk(KERN_INFO "isdn_tty: Incoming call without OAD, assuming '0'\n");
1963 si1 = (int) setup->si1;
1964 si2 = (int) setup->si2;
1965 if (!setup->eazmsn[0]) {
1966 printk(KERN_WARNING "isdn_tty: Incoming call without CPN, assuming '0'\n");
1969 eaz = setup->eazmsn;
1970 #ifdef ISDN_DEBUG_MODEM_ICALL
1971 printk(KERN_DEBUG "m_fi: eaz=%s si1=%d si2=%d\n", eaz, si1, si2);
1974 spin_lock_irqsave(&dev->lock, flags);
1975 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
1976 modem_info *info = &dev->mdm.info[i];
1978 if (info->port.count == 0)
1980 if ((info->emu.mdmreg[REG_SI1] & si2bit[si1]) && /* SI1 is matching */
1981 (info->emu.mdmreg[REG_SI2] == si2)) { /* SI2 is matching */
1982 idx = isdn_dc2minor(di, ch);
1983 #ifdef ISDN_DEBUG_MODEM_ICALL
1984 printk(KERN_DEBUG "m_fi: match1 wret=%d\n", wret);
1985 printk(KERN_DEBUG "m_fi: idx=%d flags=%08lx drv=%d ch=%d usg=%d\n", idx,
1986 info->port.flags, info->isdn_driver,
1987 info->isdn_channel, dev->usage[idx]);
1990 #ifndef FIX_FILE_TRANSFER
1991 (info->port.flags & ASYNC_NORMAL_ACTIVE) &&
1993 (info->isdn_driver == -1) &&
1994 (info->isdn_channel == -1) &&
1995 (USG_NONE(dev->usage[idx]))) {
1998 if ((matchret = isdn_tty_match_icall(eaz, &info->emu, di)) > wret)
2000 if (!matchret) { /* EAZ is matching */
2001 info->isdn_driver = di;
2002 info->isdn_channel = ch;
2003 info->drv_index = idx;
2004 dev->m_idx[idx] = info->line;
2005 dev->usage[idx] &= ISDN_USAGE_EXCLUSIVE;
2006 dev->usage[idx] |= isdn_calc_usage(si1, info->emu.mdmreg[REG_L2PROT]);
2007 strcpy(dev->num[idx], nr);
2008 strcpy(info->emu.cpn, eaz);
2009 info->emu.mdmreg[REG_SI1I] = si2bit[si1];
2010 info->emu.mdmreg[REG_PLAN] = setup->plan;
2011 info->emu.mdmreg[REG_SCREEN] = setup->screen;
2013 spin_unlock_irqrestore(&dev->lock, flags);
2014 printk(KERN_INFO "isdn_tty: call from %s, -> RING on ttyI%d\n", nr,
2016 info->msr |= UART_MSR_RI;
2017 isdn_tty_modem_result(RESULT_RING, info);
2018 isdn_timer_ctrl(ISDN_TIMER_MODEMRING, 1);
2024 spin_unlock_irqrestore(&dev->lock, flags);
2025 printk(KERN_INFO "isdn_tty: call from %s -> %s %s\n", nr, eaz,
2026 ((dev->drv[di]->flags & DRV_FLAG_REJBUS) && (wret != 2)) ? "rejected" : "ignored");
2027 return (wret == 2) ? 3 : 0;
2030 #define TTY_IS_ACTIVE(info) (info->port.flags & ASYNC_NORMAL_ACTIVE)
2033 isdn_tty_stat_callback(int i, isdn_ctrl *c)
2041 if ((mi = dev->m_idx[i]) >= 0) {
2042 info = &dev->mdm.info[mi];
2043 switch (c->command) {
2044 case ISDN_STAT_CINF:
2045 printk(KERN_DEBUG "CHARGEINFO on ttyI%d: %ld %s\n", info->line, c->arg, c->parm.num);
2046 info->emu.charge = (unsigned) simple_strtoul(c->parm.num, &e, 10);
2047 if (e == (char *)c->parm.num)
2048 info->emu.charge = 0;
2051 case ISDN_STAT_BSENT:
2052 #ifdef ISDN_TTY_STAT_DEBUG
2053 printk(KERN_DEBUG "tty_STAT_BSENT ttyI%d\n", info->line);
2055 if ((info->isdn_driver == c->driver) &&
2056 (info->isdn_channel == c->arg)) {
2057 info->msr |= UART_MSR_CTS;
2058 if (info->send_outstanding)
2059 if (!(--info->send_outstanding))
2060 info->lsr |= UART_LSR_TEMT;
2061 isdn_tty_tint(info);
2065 case ISDN_STAT_CAUSE:
2066 #ifdef ISDN_TTY_STAT_DEBUG
2067 printk(KERN_DEBUG "tty_STAT_CAUSE ttyI%d\n", info->line);
2069 /* Signal cause to tty-device */
2070 strncpy(info->last_cause, c->parm.num, 5);
2072 case ISDN_STAT_DISPLAY:
2073 #ifdef ISDN_TTY_STAT_DEBUG
2074 printk(KERN_DEBUG "tty_STAT_DISPLAY ttyI%d\n", info->line);
2076 /* Signal display to tty-device */
2077 if ((info->emu.mdmreg[REG_DISPLAY] & BIT_DISPLAY) &&
2078 !(info->emu.mdmreg[REG_RESPNUM] & BIT_RESPNUM)) {
2079 isdn_tty_at_cout("\r\n", info);
2080 isdn_tty_at_cout("DISPLAY: ", info);
2081 isdn_tty_at_cout(c->parm.display, info);
2082 isdn_tty_at_cout("\r\n", info);
2085 case ISDN_STAT_DCONN:
2086 #ifdef ISDN_TTY_STAT_DEBUG
2087 printk(KERN_DEBUG "tty_STAT_DCONN ttyI%d\n", info->line);
2089 if (TTY_IS_ACTIVE(info)) {
2090 if (info->dialing == 1) {
2096 case ISDN_STAT_DHUP:
2097 #ifdef ISDN_TTY_STAT_DEBUG
2098 printk(KERN_DEBUG "tty_STAT_DHUP ttyI%d\n", info->line);
2100 if (TTY_IS_ACTIVE(info)) {
2101 if (info->dialing == 1)
2102 isdn_tty_modem_result(RESULT_BUSY, info);
2103 if (info->dialing > 1)
2104 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
2106 #ifdef ISDN_DEBUG_MODEM_HUP
2107 printk(KERN_DEBUG "Mhup in ISDN_STAT_DHUP\n");
2109 isdn_tty_modem_hup(info, 0);
2113 case ISDN_STAT_BCONN:
2114 #ifdef ISDN_TTY_STAT_DEBUG
2115 printk(KERN_DEBUG "tty_STAT_BCONN ttyI%d\n", info->line);
2117 /* Wake up any processes waiting
2118 * for incoming call of this device when
2119 * DCD follow the state of incoming carrier
2121 if (info->port.blocked_open &&
2122 (info->emu.mdmreg[REG_DCD] & BIT_DCD)) {
2123 wake_up_interruptible(&info->port.open_wait);
2126 /* Schedule CONNECT-Message to any tty
2127 * waiting for it and
2128 * set DCD-bit of its modem-status.
2130 if (TTY_IS_ACTIVE(info) ||
2131 (info->port.blocked_open &&
2132 (info->emu.mdmreg[REG_DCD] & BIT_DCD))) {
2133 info->msr |= UART_MSR_DCD;
2134 info->emu.charge = 0;
2135 if (info->dialing & 0xf)
2141 if (USG_MODEM(dev->usage[i])) {
2142 if (info->emu.mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM) {
2143 strcpy(info->emu.connmsg, c->parm.num);
2144 isdn_tty_modem_result(RESULT_CONNECT, info);
2146 isdn_tty_modem_result(RESULT_CONNECT64000, info);
2148 if (USG_VOICE(dev->usage[i]))
2149 isdn_tty_modem_result(RESULT_VCON, info);
2153 case ISDN_STAT_BHUP:
2154 #ifdef ISDN_TTY_STAT_DEBUG
2155 printk(KERN_DEBUG "tty_STAT_BHUP ttyI%d\n", info->line);
2157 if (TTY_IS_ACTIVE(info)) {
2158 #ifdef ISDN_DEBUG_MODEM_HUP
2159 printk(KERN_DEBUG "Mhup in ISDN_STAT_BHUP\n");
2161 isdn_tty_modem_hup(info, 0);
2165 case ISDN_STAT_NODCH:
2166 #ifdef ISDN_TTY_STAT_DEBUG
2167 printk(KERN_DEBUG "tty_STAT_NODCH ttyI%d\n", info->line);
2169 if (TTY_IS_ACTIVE(info)) {
2170 if (info->dialing) {
2174 sprintf(info->last_cause, "0000");
2175 isdn_tty_modem_result(RESULT_NO_DIALTONE, info);
2177 isdn_tty_modem_hup(info, 0);
2181 case ISDN_STAT_UNLOAD:
2182 #ifdef ISDN_TTY_STAT_DEBUG
2183 printk(KERN_DEBUG "tty_STAT_UNLOAD ttyI%d\n", info->line);
2185 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
2186 info = &dev->mdm.info[i];
2187 if (info->isdn_driver == c->driver) {
2189 isdn_tty_modem_hup(info, 1);
2193 #ifdef CONFIG_ISDN_TTY_FAX
2194 case ISDN_STAT_FAXIND:
2195 if (TTY_IS_ACTIVE(info)) {
2196 isdn_tty_fax_command(info, c);
2200 #ifdef CONFIG_ISDN_AUDIO
2201 case ISDN_STAT_AUDIO:
2202 if (TTY_IS_ACTIVE(info)) {
2203 switch (c->parm.num[0]) {
2204 case ISDN_AUDIO_DTMF:
2205 if (info->vonline) {
2206 isdn_audio_put_dle_code(info,
2219 /*********************************************************************
2220 Modem-Emulator-Routines
2221 *********************************************************************/
2223 #define cmdchar(c) ((c >= ' ') && (c <= 0x7f))
2226 * Put a message from the AT-emulator into receive-buffer of tty,
2227 * convert CR, LF, and BS to values in modem-registers 3, 4 and 5.
2230 isdn_tty_at_cout(char *msg, modem_info *info)
2232 struct tty_struct *tty;
2233 atemu *m = &info->emu;
2237 struct sk_buff *skb = NULL;
2242 printk(KERN_WARNING "isdn_tty: Null-Message in isdn_tty_at_cout\n");
2248 spin_lock_irqsave(&info->readlock, flags);
2249 tty = info->port.tty;
2250 if ((info->port.flags & ASYNC_CLOSING) || (!tty)) {
2251 spin_unlock_irqrestore(&info->readlock, flags);
2255 /* use queue instead of direct, if online and */
2256 /* data is in queue or buffer is full */
2257 if (info->online && ((tty_buffer_request_room(tty, l) < l) ||
2258 !skb_queue_empty(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel]))) {
2259 skb = alloc_skb(l, GFP_ATOMIC);
2261 spin_unlock_irqrestore(&info->readlock, flags);
2264 sp = skb_put(skb, l);
2265 #ifdef CONFIG_ISDN_AUDIO
2266 ISDN_AUDIO_SKB_DLECOUNT(skb) = 0;
2267 ISDN_AUDIO_SKB_LOCK(skb) = 0;
2271 for (p = msg; *p; p++) {
2274 c = m->mdmreg[REG_CR];
2277 c = m->mdmreg[REG_LF];
2280 c = m->mdmreg[REG_BS];
2288 if (tty_insert_flip_char(tty, c, TTY_NORMAL) == 0)
2293 __skb_queue_tail(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel], skb);
2294 dev->drv[info->isdn_driver]->rcvcount[info->isdn_channel] += skb->len;
2295 spin_unlock_irqrestore(&info->readlock, flags);
2296 /* Schedule dequeuing */
2297 if (dev->modempoll && info->rcvsched)
2298 isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1);
2301 spin_unlock_irqrestore(&info->readlock, flags);
2302 tty_flip_buffer_push(tty);
2307 * Perform ATH Hangup
2310 isdn_tty_on_hook(modem_info *info)
2312 if (info->isdn_channel >= 0) {
2313 #ifdef ISDN_DEBUG_MODEM_HUP
2314 printk(KERN_DEBUG "Mhup in isdn_tty_on_hook\n");
2316 isdn_tty_modem_hup(info, 1);
2321 isdn_tty_off_hook(void)
2323 printk(KERN_DEBUG "isdn_tty_off_hook\n");
2326 #define PLUSWAIT1 (HZ / 2) /* 0.5 sec. */
2327 #define PLUSWAIT2 (HZ * 3 / 2) /* 1.5 sec */
2330 * Check Buffer for Modem-escape-sequence, activate timer-callback to
2331 * isdn_tty_modem_escape() if sequence found.
2334 * p pointer to databuffer
2335 * plus escape-character
2336 * count length of buffer
2337 * pluscount count of valid escape-characters so far
2338 * lastplus timestamp of last character
2341 isdn_tty_check_esc(const u_char *p, u_char plus, int count, int *pluscount,
2352 if (*(p++) == plus) {
2353 if ((*pluscount)++) {
2354 /* Time since last '+' > 0.5 sec. ? */
2355 if (time_after(jiffies, *lastplus + PLUSWAIT1))
2358 /* Time since last non-'+' < 1.5 sec. ? */
2359 if (time_before(jiffies, *lastplus + PLUSWAIT2))
2362 if ((*pluscount == 3) && (count == 1))
2363 isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS, 1);
2368 *lastplus = jiffies;
2374 * Return result of AT-emulator to tty-receive-buffer, depending on
2375 * modem-register 12, bit 0 and 1.
2376 * For CONNECT-messages also switch to online-mode.
2377 * For RING-message handle auto-ATA if register 0 != 0
2381 isdn_tty_modem_result(int code, modem_info *info)
2383 atemu *m = &info->emu;
2384 static char *msg[] =
2385 {"OK", "CONNECT", "RING", "NO CARRIER", "ERROR",
2386 "CONNECT 64000", "NO DIALTONE", "BUSY", "NO ANSWER",
2387 "RINGING", "NO MSN/EAZ", "VCON", "RUNG"};
2388 char s[ISDN_MSNLEN + 10];
2392 m->mdmreg[REG_RINGCNT]++;
2393 if (m->mdmreg[REG_RINGCNT] == m->mdmreg[REG_RINGATA])
2394 /* Automatically accept incoming call */
2395 isdn_tty_cmd_ATA(info);
2397 case RESULT_NO_CARRIER:
2398 #ifdef ISDN_DEBUG_MODEM_HUP
2399 printk(KERN_DEBUG "modem_result: NO CARRIER %d %d\n",
2400 (info->port.flags & ASYNC_CLOSING),
2403 m->mdmreg[REG_RINGCNT] = 0;
2404 del_timer(&info->nc_timer);
2406 if ((info->port.flags & ASYNC_CLOSING) || (!info->port.tty))
2409 #ifdef CONFIG_ISDN_AUDIO
2410 if (info->vonline & 1) {
2411 #ifdef ISDN_DEBUG_MODEM_VOICE
2412 printk(KERN_DEBUG "res3: send DLE-ETX on ttyI%d\n",
2415 /* voice-recording, add DLE-ETX */
2416 isdn_tty_at_cout("\020\003", info);
2418 if (info->vonline & 2) {
2419 #ifdef ISDN_DEBUG_MODEM_VOICE
2420 printk(KERN_DEBUG "res3: send DLE-DC4 on ttyI%d\n",
2423 /* voice-playing, add DLE-DC4 */
2424 isdn_tty_at_cout("\020\024", info);
2428 case RESULT_CONNECT:
2429 case RESULT_CONNECT64000:
2430 sprintf(info->last_cause, "0000");
2435 #ifdef ISDN_DEBUG_MODEM_VOICE
2436 printk(KERN_DEBUG "res3: send VCON on ttyI%d\n",
2439 sprintf(info->last_cause, "0000");
2443 } /* switch (code) */
2445 if (m->mdmreg[REG_RESP] & BIT_RESP) {
2447 if (m->mdmreg[REG_RESPNUM] & BIT_RESPNUM) {
2448 /* Show numeric results only */
2449 sprintf(s, "\r\n%d\r\n", code);
2450 isdn_tty_at_cout(s, info);
2452 if (code == RESULT_RING) {
2453 /* return if "show RUNG" and ringcounter>1 */
2454 if ((m->mdmreg[REG_RUNG] & BIT_RUNG) &&
2455 (m->mdmreg[REG_RINGCNT] > 1))
2457 /* print CID, _before_ _every_ ring */
2458 if (!(m->mdmreg[REG_CIDONCE] & BIT_CIDONCE)) {
2459 isdn_tty_at_cout("\r\nCALLER NUMBER: ", info);
2460 isdn_tty_at_cout(dev->num[info->drv_index], info);
2461 if (m->mdmreg[REG_CDN] & BIT_CDN) {
2462 isdn_tty_at_cout("\r\nCALLED NUMBER: ", info);
2463 isdn_tty_at_cout(info->emu.cpn, info);
2467 isdn_tty_at_cout("\r\n", info);
2468 isdn_tty_at_cout(msg[code], info);
2470 case RESULT_CONNECT:
2471 switch (m->mdmreg[REG_L2PROT]) {
2472 case ISDN_PROTO_L2_MODEM:
2473 isdn_tty_at_cout(" ", info);
2474 isdn_tty_at_cout(m->connmsg, info);
2479 /* Append CPN, if enabled */
2480 if ((m->mdmreg[REG_CPN] & BIT_CPN)) {
2481 sprintf(s, "/%s", m->cpn);
2482 isdn_tty_at_cout(s, info);
2484 /* Print CID only once, _after_ 1st RING */
2485 if ((m->mdmreg[REG_CIDONCE] & BIT_CIDONCE) &&
2486 (m->mdmreg[REG_RINGCNT] == 1)) {
2487 isdn_tty_at_cout("\r\n", info);
2488 isdn_tty_at_cout("CALLER NUMBER: ", info);
2489 isdn_tty_at_cout(dev->num[info->drv_index], info);
2490 if (m->mdmreg[REG_CDN] & BIT_CDN) {
2491 isdn_tty_at_cout("\r\nCALLED NUMBER: ", info);
2492 isdn_tty_at_cout(info->emu.cpn, info);
2496 case RESULT_NO_CARRIER:
2497 case RESULT_NO_DIALTONE:
2499 case RESULT_NO_ANSWER:
2500 m->mdmreg[REG_RINGCNT] = 0;
2501 /* Append Cause-Message if enabled */
2502 if (m->mdmreg[REG_RESPXT] & BIT_RESPXT) {
2503 sprintf(s, "/%s", info->last_cause);
2504 isdn_tty_at_cout(s, info);
2507 case RESULT_CONNECT64000:
2508 /* Append Protocol to CONNECT message */
2509 switch (m->mdmreg[REG_L2PROT]) {
2510 case ISDN_PROTO_L2_X75I:
2511 case ISDN_PROTO_L2_X75UI:
2512 case ISDN_PROTO_L2_X75BUI:
2513 isdn_tty_at_cout("/X.75", info);
2515 case ISDN_PROTO_L2_HDLC:
2516 isdn_tty_at_cout("/HDLC", info);
2518 case ISDN_PROTO_L2_V11096:
2519 isdn_tty_at_cout("/V110/9600", info);
2521 case ISDN_PROTO_L2_V11019:
2522 isdn_tty_at_cout("/V110/19200", info);
2524 case ISDN_PROTO_L2_V11038:
2525 isdn_tty_at_cout("/V110/38400", info);
2528 if (m->mdmreg[REG_T70] & BIT_T70) {
2529 isdn_tty_at_cout("/T.70", info);
2530 if (m->mdmreg[REG_T70] & BIT_T70_EXT)
2531 isdn_tty_at_cout("+", info);
2535 isdn_tty_at_cout("\r\n", info);
2538 if (code == RESULT_NO_CARRIER) {
2539 if ((info->port.flags & ASYNC_CLOSING) || (!info->port.tty))
2542 if (info->port.flags & ASYNC_CHECK_CD)
2543 tty_hangup(info->port.tty);
2549 * Display a modem-register-value.
2552 isdn_tty_show_profile(int ridx, modem_info *info)
2556 sprintf(v, "\r\n%d", info->emu.mdmreg[ridx]);
2557 isdn_tty_at_cout(v, info);
2561 * Get MSN-string from char-pointer, set pointer to end of number
2564 isdn_tty_get_msnstr(char *n, char **p)
2566 int limit = ISDN_MSNLEN - 1;
2568 while (((*p[0] >= '0' && *p[0] <= '9') ||
2569 /* Why a comma ??? */
2570 (*p[0] == ',') || (*p[0] == ':')) &&
2577 * Get phone-number from modem-commandbuffer
2580 isdn_tty_getdial(char *p, char *q, int cnt)
2583 int limit = ISDN_MSNLEN - 1; /* MUST match the size of interface var to avoid
2586 while (strchr(" 0123456789,#.*WPTSR-", *p) && *p && --cnt > 0) {
2587 if ((*p >= '0' && *p <= '9') || ((*p == 'S') && first) ||
2588 ((*p == 'R') && first) ||
2589 (*p == '*') || (*p == '#')) {
2601 #define PARSE_ERROR { isdn_tty_modem_result(RESULT_ERROR, info); return; }
2602 #define PARSE_ERROR1 { isdn_tty_modem_result(RESULT_ERROR, info); return 1; }
2605 isdn_tty_report(modem_info *info)
2607 atemu *m = &info->emu;
2610 isdn_tty_at_cout("\r\nStatistics of last connection:\r\n\r\n", info);
2611 sprintf(s, " Remote Number: %s\r\n", info->last_num);
2612 isdn_tty_at_cout(s, info);
2613 sprintf(s, " Direction: %s\r\n", info->last_dir ? "outgoing" : "incoming");
2614 isdn_tty_at_cout(s, info);
2615 isdn_tty_at_cout(" Layer-2 Protocol: ", info);
2616 switch (info->last_l2) {
2617 case ISDN_PROTO_L2_X75I:
2618 isdn_tty_at_cout("X.75i", info);
2620 case ISDN_PROTO_L2_X75UI:
2621 isdn_tty_at_cout("X.75ui", info);
2623 case ISDN_PROTO_L2_X75BUI:
2624 isdn_tty_at_cout("X.75bui", info);
2626 case ISDN_PROTO_L2_HDLC:
2627 isdn_tty_at_cout("HDLC", info);
2629 case ISDN_PROTO_L2_V11096:
2630 isdn_tty_at_cout("V.110 9600 Baud", info);
2632 case ISDN_PROTO_L2_V11019:
2633 isdn_tty_at_cout("V.110 19200 Baud", info);
2635 case ISDN_PROTO_L2_V11038:
2636 isdn_tty_at_cout("V.110 38400 Baud", info);
2638 case ISDN_PROTO_L2_TRANS:
2639 isdn_tty_at_cout("transparent", info);
2641 case ISDN_PROTO_L2_MODEM:
2642 isdn_tty_at_cout("modem", info);
2644 case ISDN_PROTO_L2_FAX:
2645 isdn_tty_at_cout("fax", info);
2648 isdn_tty_at_cout("unknown", info);
2651 if (m->mdmreg[REG_T70] & BIT_T70) {
2652 isdn_tty_at_cout("/T.70", info);
2653 if (m->mdmreg[REG_T70] & BIT_T70_EXT)
2654 isdn_tty_at_cout("+", info);
2656 isdn_tty_at_cout("\r\n", info);
2657 isdn_tty_at_cout(" Service: ", info);
2658 switch (info->last_si) {
2660 isdn_tty_at_cout("audio\r\n", info);
2663 isdn_tty_at_cout("btx\r\n", info);
2666 isdn_tty_at_cout("data\r\n", info);
2669 sprintf(s, "%d\r\n", info->last_si);
2670 isdn_tty_at_cout(s, info);
2673 sprintf(s, " Hangup location: %s\r\n", info->last_lhup ? "local" : "remote");
2674 isdn_tty_at_cout(s, info);
2675 sprintf(s, " Last cause: %s\r\n", info->last_cause);
2676 isdn_tty_at_cout(s, info);
2680 * Parse AT&.. commands.
2683 isdn_tty_cmd_ATand(char **p, modem_info *info)
2685 atemu *m = &info->emu;
2689 #define MAXRB (sizeof(rb) - 1)
2693 /* &B - Set Buffersize */
2696 if ((i < 0) || (i > ISDN_SERIAL_XMIT_MAX))
2698 #ifdef CONFIG_ISDN_AUDIO
2699 if ((m->mdmreg[REG_SI1] & 1) && (i > VBUF))
2702 m->mdmreg[REG_PSIZE] = i / 16;
2703 info->xmit_size = m->mdmreg[REG_PSIZE] * 16;
2704 switch (m->mdmreg[REG_L2PROT]) {
2705 case ISDN_PROTO_L2_V11096:
2706 case ISDN_PROTO_L2_V11019:
2707 case ISDN_PROTO_L2_V11038:
2708 info->xmit_size /= 10;
2712 /* &C - DCD Status */
2714 switch (isdn_getnum(p)) {
2716 m->mdmreg[REG_DCD] &= ~BIT_DCD;
2719 m->mdmreg[REG_DCD] |= BIT_DCD;
2726 /* &D - Set DTR-Low-behavior */
2728 switch (isdn_getnum(p)) {
2730 m->mdmreg[REG_DTRHUP] &= ~BIT_DTRHUP;
2731 m->mdmreg[REG_DTRR] &= ~BIT_DTRR;
2734 m->mdmreg[REG_DTRHUP] |= BIT_DTRHUP;
2735 m->mdmreg[REG_DTRR] &= ~BIT_DTRR;
2738 m->mdmreg[REG_DTRHUP] |= BIT_DTRHUP;
2739 m->mdmreg[REG_DTRR] |= BIT_DTRR;
2746 /* &E -Set EAZ/MSN */
2748 isdn_tty_get_msnstr(m->msn, p);
2751 /* &F -Set Factory-Defaults */
2753 if (info->msr & UART_MSR_DCD)
2755 isdn_tty_reset_profile(m);
2756 isdn_tty_modem_reset_regs(info, 1);
2758 #ifdef DUMMY_HAYES_AT
2760 /* only for be compilant with common scripts */
2761 /* &K Flowcontrol - no function */
2767 /* &L -Set Numbers to listen on */
2770 while (*p[0] && (strchr("0123456789,-*[]?;", *p[0])) &&
2771 (i < ISDN_LMSNLEN - 1))
2772 m->lmsn[i++] = *p[0]++;
2776 /* &R - Set V.110 bitrate adaption */
2781 /* Switch off V.110, back to X.75 */
2782 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I;
2783 m->mdmreg[REG_SI2] = 0;
2784 info->xmit_size = m->mdmreg[REG_PSIZE] * 16;
2787 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11096;
2788 m->mdmreg[REG_SI2] = 197;
2789 info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10;
2792 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11019;
2793 m->mdmreg[REG_SI2] = 199;
2794 info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10;
2797 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11038;
2798 m->mdmreg[REG_SI2] = 198; /* no existing standard for this */
2799 info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10;
2804 /* Switch off T.70 */
2805 m->mdmreg[REG_T70] &= ~(BIT_T70 | BIT_T70_EXT);
2807 m->mdmreg[REG_SI1] |= 4;
2810 /* &S - Set Windowsize */
2813 if ((i > 0) && (i < 9))
2814 m->mdmreg[REG_WSIZE] = i;
2819 /* &V - Show registers */
2821 isdn_tty_at_cout("\r\n", info);
2822 for (i = 0; i < ISDN_MODEM_NUMREG; i++) {
2823 sprintf(rb, "S%02d=%03d%s", i,
2824 m->mdmreg[i], ((i + 1) % 10) ? " " : "\r\n");
2825 isdn_tty_at_cout(rb, info);
2827 sprintf(rb, "\r\nEAZ/MSN: %.50s\r\n",
2828 strlen(m->msn) ? m->msn : "None");
2829 isdn_tty_at_cout(rb, info);
2830 if (strlen(m->lmsn)) {
2831 isdn_tty_at_cout("\r\nListen: ", info);
2832 isdn_tty_at_cout(m->lmsn, info);
2833 isdn_tty_at_cout("\r\n", info);
2837 /* &W - Write Profile */
2842 modem_write_profile(m);
2849 /* &X - Switch to BTX-Mode and T.70 */
2851 switch (isdn_getnum(p)) {
2853 m->mdmreg[REG_T70] &= ~(BIT_T70 | BIT_T70_EXT);
2854 info->xmit_size = m->mdmreg[REG_PSIZE] * 16;
2857 m->mdmreg[REG_T70] |= BIT_T70;
2858 m->mdmreg[REG_T70] &= ~BIT_T70_EXT;
2859 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I;
2860 info->xmit_size = 112;
2861 m->mdmreg[REG_SI1] = 4;
2862 m->mdmreg[REG_SI2] = 0;
2865 m->mdmreg[REG_T70] |= (BIT_T70 | BIT_T70_EXT);
2866 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I;
2867 info->xmit_size = 112;
2868 m->mdmreg[REG_SI1] = 4;
2869 m->mdmreg[REG_SI2] = 0;
2882 isdn_tty_check_ats(int mreg, int mval, modem_info *info, atemu *m)
2884 /* Some plausibility checks */
2887 if (mval > ISDN_PROTO_L2_MAX)
2891 if ((mval * 16) > ISDN_SERIAL_XMIT_MAX)
2893 #ifdef CONFIG_ISDN_AUDIO
2894 if ((m->mdmreg[REG_SI1] & 1) && (mval > VBUFX))
2897 info->xmit_size = mval * 16;
2898 switch (m->mdmreg[REG_L2PROT]) {
2899 case ISDN_PROTO_L2_V11096:
2900 case ISDN_PROTO_L2_V11019:
2901 case ISDN_PROTO_L2_V11038:
2902 info->xmit_size /= 10;
2908 /* readonly registers */
2915 * Perform ATS command
2918 isdn_tty_cmd_ATS(char **p, modem_info *info)
2920 atemu *m = &info->emu;
2926 mreg = isdn_getnum(p);
2927 if (mreg < 0 || mreg >= ISDN_MODEM_NUMREG)
2932 mval = isdn_getnum(p);
2933 if (mval < 0 || mval > 255)
2935 if (isdn_tty_check_ats(mreg, mval, info, m))
2937 m->mdmreg[mreg] = mval;
2940 /* Set/Clear a single bit */
2942 bitpos = isdn_getnum(p);
2943 if ((bitpos < 0) || (bitpos > 7))
2948 bval = isdn_getnum(p);
2949 if (bval < 0 || bval > 1)
2952 mval = m->mdmreg[mreg] | (1 << bitpos);
2954 mval = m->mdmreg[mreg] & ~(1 << bitpos);
2955 if (isdn_tty_check_ats(mreg, mval, info, m))
2957 m->mdmreg[mreg] = mval;
2961 isdn_tty_at_cout("\r\n", info);
2962 isdn_tty_at_cout((m->mdmreg[mreg] & (1 << bitpos)) ? "1" : "0",
2971 isdn_tty_show_profile(mreg, info);
2981 * Perform ATA command
2984 isdn_tty_cmd_ATA(modem_info *info)
2986 atemu *m = &info->emu;
2990 if (info->msr & UART_MSR_RI) {
2991 /* Accept incoming call */
2993 strcpy(info->last_num, dev->num[info->drv_index]);
2994 m->mdmreg[REG_RINGCNT] = 0;
2995 info->msr &= ~UART_MSR_RI;
2996 l2 = m->mdmreg[REG_L2PROT];
2997 #ifdef CONFIG_ISDN_AUDIO
2998 /* If more than one bit set in reg18, autoselect Layer2 */
2999 if ((m->mdmreg[REG_SI1] & m->mdmreg[REG_SI1I]) != m->mdmreg[REG_SI1]) {
3000 if (m->mdmreg[REG_SI1I] == 1) {
3001 if ((l2 != ISDN_PROTO_L2_MODEM) && (l2 != ISDN_PROTO_L2_FAX))
3002 l2 = ISDN_PROTO_L2_TRANS;
3004 l2 = ISDN_PROTO_L2_X75I;
3007 cmd.driver = info->isdn_driver;
3008 cmd.command = ISDN_CMD_SETL2;
3009 cmd.arg = info->isdn_channel + (l2 << 8);
3012 cmd.driver = info->isdn_driver;
3013 cmd.command = ISDN_CMD_SETL3;
3014 cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8);
3015 #ifdef CONFIG_ISDN_TTY_FAX
3016 if (l2 == ISDN_PROTO_L2_FAX) {
3017 cmd.parm.fax = info->fax;
3018 info->fax->direction = ISDN_TTY_FAX_CONN_IN;
3022 cmd.driver = info->isdn_driver;
3023 cmd.arg = info->isdn_channel;
3024 cmd.command = ISDN_CMD_ACCEPTD;
3026 info->emu.carrierwait = 0;
3028 isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1);
3030 isdn_tty_modem_result(RESULT_NO_ANSWER, info);
3033 #ifdef CONFIG_ISDN_AUDIO
3035 * Parse AT+F.. commands
3038 isdn_tty_cmd_PLUSF(char **p, modem_info *info)
3040 atemu *m = &info->emu;
3043 if (!strncmp(p[0], "CLASS", 5)) {
3048 sprintf(rs, "\r\n%d",
3049 (m->mdmreg[REG_SI1] & 1) ? 8 : 0);
3050 #ifdef CONFIG_ISDN_TTY_FAX
3051 if (TTY_IS_FCLASS2(info))
3052 sprintf(rs, "\r\n2");
3053 else if (TTY_IS_FCLASS1(info))
3054 sprintf(rs, "\r\n1");
3056 isdn_tty_at_cout(rs, info);
3063 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I;
3064 m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_TRANS;
3065 m->mdmreg[REG_SI1] = 4;
3067 m->mdmreg[REG_PSIZE] * 16;
3069 #ifdef CONFIG_ISDN_TTY_FAX
3072 if (!(dev->global_features &
3073 ISDN_FEATURE_L3_FCLASS1))
3075 m->mdmreg[REG_SI1] = 1;
3076 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_FAX;
3077 m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_FCLASS1;
3079 m->mdmreg[REG_PSIZE] * 16;
3083 if (!(dev->global_features &
3084 ISDN_FEATURE_L3_FCLASS2))
3086 m->mdmreg[REG_SI1] = 1;
3087 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_FAX;
3088 m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_FCLASS2;
3090 m->mdmreg[REG_PSIZE] * 16;
3095 /* L2 will change on dialout with si=1 */
3096 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I;
3097 m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_TRANS;
3098 m->mdmreg[REG_SI1] = 5;
3099 info->xmit_size = VBUF;
3103 strcpy(rs, "\r\n0,");
3104 #ifdef CONFIG_ISDN_TTY_FAX
3105 if (dev->global_features &
3106 ISDN_FEATURE_L3_FCLASS1)
3108 if (dev->global_features &
3109 ISDN_FEATURE_L3_FCLASS2)
3113 isdn_tty_at_cout(rs, info);
3124 #ifdef CONFIG_ISDN_TTY_FAX
3125 return (isdn_tty_cmd_PLUSF_FAX(p, info));
3132 * Parse AT+V.. commands
3135 isdn_tty_cmd_PLUSV(char **p, modem_info *info)
3137 atemu *m = &info->emu;
3139 static char *vcmd[] =
3140 {"NH", "IP", "LS", "RX", "SD", "SM", "TX", "DD", NULL};
3148 if (!strncmp(vcmd[i], p[0], 2)) {
3156 /* AT+VNH - Auto hangup feature */
3160 isdn_tty_at_cout("\r\n1", info);
3170 isdn_tty_at_cout("\r\n1", info);
3181 /* AT+VIP - Reset all voice parameters */
3182 isdn_tty_modem_reset_vpar(m);
3185 /* AT+VLS - Select device, accept incoming call */
3189 sprintf(rs, "\r\n%d", m->vpar[0]);
3190 isdn_tty_at_cout(rs, info);
3205 isdn_tty_at_cout("\r\n0,2", info);
3216 /* AT+VRX - Start recording */
3219 if (info->online != 1) {
3220 isdn_tty_modem_result(RESULT_NO_ANSWER, info);
3223 info->dtmf_state = isdn_audio_dtmf_init(info->dtmf_state);
3224 if (!info->dtmf_state) {
3225 printk(KERN_WARNING "isdn_tty: Couldn't malloc dtmf state\n");
3228 info->silence_state = isdn_audio_silence_init(info->silence_state);
3229 if (!info->silence_state) {
3230 printk(KERN_WARNING "isdn_tty: Couldn't malloc silence state\n");
3233 if (m->vpar[3] < 5) {
3234 info->adpcmr = isdn_audio_adpcm_init(info->adpcmr, m->vpar[3]);
3235 if (!info->adpcmr) {
3236 printk(KERN_WARNING "isdn_tty: Couldn't malloc adpcm state\n");
3240 #ifdef ISDN_DEBUG_AT
3241 printk(KERN_DEBUG "AT: +VRX\n");
3244 isdn_tty_modem_result(RESULT_CONNECT, info);
3248 /* AT+VSD - Silence detection */
3252 sprintf(rs, "\r\n<%d>,<%d>",
3255 isdn_tty_at_cout(rs, info);
3259 if ((*p[0] >= '0') && (*p[0] <= '9')) {
3260 par1 = isdn_getnum(p);
3261 if ((par1 < 0) || (par1 > 31))
3266 par2 = isdn_getnum(p);
3267 if ((par2 < 0) || (par2 > 255))
3275 isdn_tty_at_cout("\r\n<0-31>,<0-255>",
3286 /* AT+VSM - Select compression */
3290 sprintf(rs, "\r\n<%d>,<%d><8000>",
3293 isdn_tty_at_cout(rs, info);
3303 par1 = isdn_getnum(p);
3304 if ((par1 < 2) || (par1 > 6))
3310 isdn_tty_at_cout("\r\n2;ADPCM;2;0;(8000)\r\n",
3312 isdn_tty_at_cout("3;ADPCM;3;0;(8000)\r\n",
3314 isdn_tty_at_cout("4;ADPCM;4;0;(8000)\r\n",
3316 isdn_tty_at_cout("5;ALAW;8;0;(8000)\r\n",
3318 isdn_tty_at_cout("6;ULAW;8;0;(8000)\r\n",
3330 /* AT+VTX - Start sending */
3333 if (info->online != 1) {
3334 isdn_tty_modem_result(RESULT_NO_ANSWER, info);
3337 info->dtmf_state = isdn_audio_dtmf_init(info->dtmf_state);
3338 if (!info->dtmf_state) {
3339 printk(KERN_WARNING "isdn_tty: Couldn't malloc dtmf state\n");
3342 if (m->vpar[3] < 5) {
3343 info->adpcms = isdn_audio_adpcm_init(info->adpcms, m->vpar[3]);
3344 if (!info->adpcms) {
3345 printk(KERN_WARNING "isdn_tty: Couldn't malloc adpcm state\n");
3349 #ifdef ISDN_DEBUG_AT
3350 printk(KERN_DEBUG "AT: +VTX\n");
3354 isdn_tty_modem_result(RESULT_CONNECT, info);
3358 /* AT+VDD - DTMF detection */
3362 sprintf(rs, "\r\n<%d>,<%d>",
3365 isdn_tty_at_cout(rs, info);
3369 if ((*p[0] >= '0') && (*p[0] <= '9')) {
3370 if (info->online != 1)
3372 par1 = isdn_getnum(p);
3373 if ((par1 < 0) || (par1 > 15))
3378 par2 = isdn_getnum(p);
3379 if ((par2 < 0) || (par2 > 255))
3383 cmd.driver = info->isdn_driver;
3384 cmd.command = ISDN_CMD_AUDIO;
3385 cmd.arg = info->isdn_channel + (ISDN_AUDIO_SETDD << 8);
3386 cmd.parm.num[0] = par1;
3387 cmd.parm.num[1] = par2;
3393 isdn_tty_at_cout("\r\n<0-15>,<0-255>",
3408 #endif /* CONFIG_ISDN_AUDIO */
3411 * Parse and perform an AT-command-line.
3414 isdn_tty_parse_at(modem_info *info)
3416 atemu *m = &info->emu;
3418 char ds[ISDN_MSNLEN];
3420 #ifdef ISDN_DEBUG_AT
3421 printk(KERN_DEBUG "AT: '%s'\n", m->mdmcmd);
3423 for (p = &m->mdmcmd[2]; *p;) {
3429 /* A - Accept incoming call */
3431 isdn_tty_cmd_ATA(info);
3436 if (info->msr & UART_MSR_DCD)
3438 if (info->msr & UART_MSR_RI) {
3439 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
3442 isdn_tty_getdial(++p, ds, sizeof ds);
3444 if (!strlen(m->msn))
3445 isdn_tty_modem_result(RESULT_NO_MSN_EAZ, info);
3446 else if (strlen(ds))
3447 isdn_tty_dial(ds, info, m);
3452 /* E - Turn Echo on/off */
3454 switch (isdn_getnum(&p)) {
3456 m->mdmreg[REG_ECHO] &= ~BIT_ECHO;
3459 m->mdmreg[REG_ECHO] |= BIT_ECHO;
3466 /* H - On/Off-hook */
3471 isdn_tty_on_hook(info);
3475 isdn_tty_off_hook();
3478 isdn_tty_on_hook(info);
3483 /* I - Information */
3485 isdn_tty_at_cout("\r\nLinux ISDN", info);
3493 isdn_tty_report(info);
3497 snprintf(ds, sizeof(ds), "\r\n%d", info->emu.charge);
3498 isdn_tty_at_cout(ds, info);
3503 #ifdef DUMMY_HAYES_AT
3506 /* only for be compilant with common scripts */
3515 if (info->msr & UART_MSR_DCD)
3516 /* if B-Channel is up */
3517 isdn_tty_modem_result((m->mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM) ? RESULT_CONNECT : RESULT_CONNECT64000, info);
3519 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
3522 /* Q - Turn Emulator messages on/off */
3524 switch (isdn_getnum(&p)) {
3526 m->mdmreg[REG_RESP] |= BIT_RESP;
3529 m->mdmreg[REG_RESP] &= ~BIT_RESP;
3536 /* S - Set/Get Register */
3538 if (isdn_tty_cmd_ATS(&p, info))
3542 /* V - Numeric or ASCII Emulator-messages */
3544 switch (isdn_getnum(&p)) {
3546 m->mdmreg[REG_RESP] |= BIT_RESPNUM;
3549 m->mdmreg[REG_RESP] &= ~BIT_RESPNUM;
3556 /* Z - Load Registers from Profile */
3558 if (info->msr & UART_MSR_DCD) {
3560 isdn_tty_on_hook(info);
3562 isdn_tty_modem_reset_regs(info, 1);
3567 #ifdef CONFIG_ISDN_AUDIO
3570 if (isdn_tty_cmd_PLUSF(&p, info))
3574 if ((!(m->mdmreg[REG_SI1] & 1)) ||
3575 (m->mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM))
3578 if (isdn_tty_cmd_PLUSV(&p, info))
3581 #endif /* CONFIG_ISDN_AUDIO */
3582 case 'S': /* SUSPEND */
3584 isdn_tty_get_msnstr(ds, &p);
3585 isdn_tty_suspend(ds, info, m);
3587 case 'R': /* RESUME */
3589 isdn_tty_get_msnstr(ds, &p);
3590 isdn_tty_resume(ds, info, m);
3592 case 'M': /* MESSAGE */
3594 isdn_tty_send_msg(info, m, p);
3602 if (isdn_tty_cmd_ATand(&p, info))
3609 #ifdef CONFIG_ISDN_AUDIO
3612 isdn_tty_modem_result(RESULT_OK, info);
3615 /* Need own toupper() because standard-toupper is not available
3618 #define my_toupper(c) (((c >= 'a') && (c <= 'z')) ? (c & 0xdf) : c)
3621 * Perform line-editing of AT-commands
3625 * count length of buffer
3626 * channel index to line (minor-device)
3629 isdn_tty_edit_at(const char *p, int count, modem_info *info)
3631 atemu *m = &info->emu;
3637 for (cnt = count; cnt > 0; p++, cnt--) {
3640 if (c == m->mdmreg[REG_CR] || c == m->mdmreg[REG_LF]) {
3641 /* Separator (CR or LF) */
3642 m->mdmcmd[m->mdmcmdl] = 0;
3643 if (m->mdmreg[REG_ECHO] & BIT_ECHO) {
3646 isdn_tty_at_cout(eb, info);
3648 if ((m->mdmcmdl >= 2) && (!(strncmp(m->mdmcmd, "AT", 2))))
3649 isdn_tty_parse_at(info);
3653 if (c == m->mdmreg[REG_BS] && m->mdmreg[REG_BS] < 128) {
3654 /* Backspace-Function */
3655 if ((m->mdmcmdl > 2) || (!m->mdmcmdl)) {
3658 if (m->mdmreg[REG_ECHO] & BIT_ECHO)
3659 isdn_tty_at_cout("\b", info);
3664 if (m->mdmreg[REG_ECHO] & BIT_ECHO) {
3667 isdn_tty_at_cout(eb, info);
3669 if (m->mdmcmdl < 255) {
3671 switch (m->mdmcmdl) {
3674 m->mdmcmd[m->mdmcmdl] = c;
3675 m->mdmcmd[++m->mdmcmdl] = 0;
3679 /* Fall through, check for 'A' */
3682 m->mdmcmd[m->mdmcmdl] = c;
3683 m->mdmcmd[++m->mdmcmdl] = 0;
3687 m->mdmcmd[m->mdmcmdl] = c;
3688 m->mdmcmd[++m->mdmcmdl] = 0;
3697 * Switch all modem-channels who are online and got a valid
3698 * escape-sequence 1.5 seconds ago, to command-mode.
3699 * This function is called every second via timer-interrupt from within
3700 * timer-dispatcher isdn_timer_function()
3703 isdn_tty_modem_escape(void)
3709 for (i = 0; i < ISDN_MAX_CHANNELS; i++)
3710 if (USG_MODEM(dev->usage[i]) && (midx = dev->m_idx[i]) >= 0) {
3711 modem_info *info = &dev->mdm.info[midx];
3714 if ((info->emu.pluscount == 3) &&
3716 info->emu.lastplus + PLUSWAIT2)) {
3717 info->emu.pluscount = 0;
3719 isdn_tty_modem_result(RESULT_OK, info);
3723 isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS, ton);
3727 * Put a RING-message to all modem-channels who have the RI-bit set.
3728 * This function is called every second via timer-interrupt from within
3729 * timer-dispatcher isdn_timer_function()
3732 isdn_tty_modem_ring(void)
3737 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
3738 modem_info *info = &dev->mdm.info[i];
3739 if (info->msr & UART_MSR_RI) {
3741 isdn_tty_modem_result(RESULT_RING, info);
3744 isdn_timer_ctrl(ISDN_TIMER_MODEMRING, ton);
3748 * For all online tty's, try sending data to
3752 isdn_tty_modem_xmit(void)
3757 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
3758 modem_info *info = &dev->mdm.info[i];
3761 isdn_tty_senddown(info);
3762 isdn_tty_tint(info);
3765 isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, ton);
3769 * Check all channels if we have a 'no carrier' timeout.
3770 * Timeout value is set by Register S7.
3773 isdn_tty_carrier_timeout(void)
3778 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
3779 modem_info *info = &dev->mdm.info[i];
3782 if (info->emu.carrierwait++ > info->emu.mdmreg[REG_WAITC]) {
3784 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
3785 isdn_tty_modem_hup(info, 1);
3789 isdn_timer_ctrl(ISDN_TIMER_CARRIER, ton);