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)
63 struct tty_port *port = &info->port;
71 if (!(info->mcr & UART_MCR_RTS))
75 #ifdef CONFIG_ISDN_AUDIO
76 + ISDN_AUDIO_SKB_DLECOUNT(skb)
80 c = tty_buffer_request_room(port, len);
84 #ifdef CONFIG_ISDN_AUDIO
85 if (ISDN_AUDIO_SKB_DLECOUNT(skb)) {
87 unsigned char *dp = skb->data;
90 tty_insert_flip_char(port, DLE, 0);
91 tty_insert_flip_char(port, *dp++, 0);
94 tty_insert_flip_char(port, DLE, 0);
99 tty_insert_flip_string(port, skb->data, len - 1);
100 last = skb->data[len - 1];
101 #ifdef CONFIG_ISDN_AUDIO
104 if (info->emu.mdmreg[REG_CPPP] & BIT_CPPP)
105 tty_insert_flip_char(port, last, 0xFF);
107 tty_insert_flip_char(port, last, TTY_NORMAL);
108 tty_flip_buffer_push(port);
114 /* isdn_tty_readmodem() is called periodically from within timer-interrupt.
115 * It tries getting received data from the receive queue an stuff it into
116 * the tty's flip-buffer.
119 isdn_tty_readmodem(void)
127 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
128 midx = dev->m_idx[i];
132 info = &dev->mdm.info[midx];
137 #ifdef CONFIG_ISDN_AUDIO
138 isdn_audio_eval_dtmf(info);
139 if ((info->vonline & 1) && (info->emu.vpar[1]))
140 isdn_audio_eval_silence(info);
142 if (info->mcr & UART_MCR_RTS) {
143 /* CISCO AsyncPPP Hack */
144 if (!(info->emu.mdmreg[REG_CPPP] & BIT_CPPP))
145 r = isdn_readbchan_tty(info->isdn_driver,
149 r = isdn_readbchan_tty(info->isdn_driver,
153 tty_flip_buffer_push(&info->port);
164 isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 0);
168 isdn_tty_rcv_skb(int i, int di, int channel, struct sk_buff *skb)
172 #ifdef CONFIG_ISDN_AUDIO
177 if ((midx = dev->m_idx[i]) < 0) {
178 /* if midx is invalid, packet is not for tty */
181 info = &dev->mdm.info[midx];
182 #ifdef CONFIG_ISDN_AUDIO
185 if ((info->vonline) && (!info->emu.vpar[4]))
186 isdn_audio_calc_dtmf(info, skb->data, skb->len, ifmt);
187 if ((info->vonline & 1) && (info->emu.vpar[1]))
188 isdn_audio_calc_silence(info, skb->data, skb->len, ifmt);
190 if ((info->online < 2)
191 #ifdef CONFIG_ISDN_AUDIO
192 && (!(info->vonline & 1))
195 /* If Modem not listening, drop data */
199 if (info->emu.mdmreg[REG_T70] & BIT_T70) {
200 if (info->emu.mdmreg[REG_T70] & BIT_T70_EXT) {
201 /* T.70 decoding: throw away the T.70 header (2 or 4 bytes) */
202 if (skb->data[0] == 3) /* pure data packet -> 4 byte headers */
205 if (skb->data[0] == 1) /* keepalive packet -> 2 byte hdr */
208 /* T.70 decoding: Simply throw away the T.70 header (4 bytes) */
209 if ((skb->data[0] == 1) && ((skb->data[1] == 0) || (skb->data[1] == 1)))
212 #ifdef CONFIG_ISDN_AUDIO
213 ISDN_AUDIO_SKB_DLECOUNT(skb) = 0;
214 ISDN_AUDIO_SKB_LOCK(skb) = 0;
215 if (info->vonline & 1) {
216 /* voice conversion/compression */
217 switch (info->emu.vpar[3]) {
222 * Since compressed data takes less
223 * space, we can overwrite the buffer.
225 skb_trim(skb, isdn_audio_xlaw2adpcm(info->adpcmr,
234 isdn_audio_ulaw2alaw(skb->data, skb->len);
239 isdn_audio_alaw2ulaw(skb->data, skb->len);
242 ISDN_AUDIO_SKB_DLECOUNT(skb) =
243 isdn_tty_countDLE(skb->data, skb->len);
245 #ifdef CONFIG_ISDN_TTY_FAX
247 if (info->faxonline & 2) {
248 isdn_tty_fax_bitorder(info, skb);
249 ISDN_AUDIO_SKB_DLECOUNT(skb) =
250 isdn_tty_countDLE(skb->data, skb->len);
255 /* Try to deliver directly via tty-buf if queue is empty */
256 spin_lock_irqsave(&info->readlock, flags);
257 if (skb_queue_empty(&dev->drv[di]->rpqueue[channel]))
258 if (isdn_tty_try_read(info, skb)) {
259 spin_unlock_irqrestore(&info->readlock, flags);
262 /* Direct deliver failed or queue wasn't empty.
263 * Queue up for later dequeueing via timer-irq.
265 __skb_queue_tail(&dev->drv[di]->rpqueue[channel], skb);
266 dev->drv[di]->rcvcount[channel] +=
268 #ifdef CONFIG_ISDN_AUDIO
269 + ISDN_AUDIO_SKB_DLECOUNT(skb)
272 spin_unlock_irqrestore(&info->readlock, flags);
273 /* Schedule dequeuing */
274 if ((dev->modempoll) && (info->rcvsched))
275 isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1);
280 isdn_tty_cleanup_xmit(modem_info *info)
282 skb_queue_purge(&info->xmit_queue);
283 #ifdef CONFIG_ISDN_AUDIO
284 skb_queue_purge(&info->dtmf_queue);
289 isdn_tty_tint(modem_info *info)
291 struct sk_buff *skb = skb_dequeue(&info->xmit_queue);
297 if ((slen = isdn_writebuf_skb_stub(info->isdn_driver,
298 info->isdn_channel, 1, skb)) == len) {
299 struct tty_struct *tty = info->port.tty;
300 info->send_outstanding++;
301 info->msr &= ~UART_MSR_CTS;
302 info->lsr &= ~UART_LSR_TEMT;
307 /* Error: no channel, already shutdown, or wrong parameter */
311 skb_queue_head(&info->xmit_queue, skb);
314 #ifdef CONFIG_ISDN_AUDIO
316 isdn_tty_countDLE(unsigned char *buf, int len)
326 /* This routine is called from within isdn_tty_write() to perform
327 * DLE-decoding when sending audio-data.
330 isdn_tty_handleDLEdown(modem_info *info, atemu *m, int len)
332 unsigned char *p = &info->port.xmit_buf[info->xmit_count];
342 memmove(p, p + 1, len - 1);
353 #ifdef ISDN_DEBUG_MODEM_VOICE
355 "DLEdown: got DLE-DC4, send DLE-ETX on ttyI%d\n",
358 isdn_tty_at_cout("\020\003", info);
359 if (!info->vonline) {
360 #ifdef ISDN_DEBUG_MODEM_VOICE
362 "DLEdown: send VCON on ttyI%d\n",
365 isdn_tty_at_cout("\r\nVCON\r\n", info);
372 memmove(p, p + 1, len - 1);
386 printk(KERN_WARNING "isdn_tty: len<0 in DLEdown\n");
392 /* This routine is called from within isdn_tty_write() when receiving
393 * audio-data. It interrupts receiving, if an character other than
397 isdn_tty_end_vrx(const char *buf, int c)
403 if ((ch != 0x11) && (ch != 0x13))
410 static int voice_cf[7] =
411 {0, 0, 4, 3, 2, 0, 0};
413 #endif /* CONFIG_ISDN_AUDIO */
415 /* isdn_tty_senddown() is called either directly from within isdn_tty_write()
416 * or via timer-interrupt from within isdn_tty_modem_xmit(). It pulls
417 * outgoing data from the tty's xmit-buffer, handles voice-decompression or
418 * T.70 if necessary, and finally queues it up for sending via isdn_tty_tint.
421 isdn_tty_senddown(modem_info *info)
425 #ifdef CONFIG_ISDN_AUDIO
430 #ifdef CONFIG_ISDN_AUDIO
431 if (info->vonline & 4) {
433 if (!info->vonline) {
434 #ifdef ISDN_DEBUG_MODEM_VOICE
436 "senddown: send VCON on ttyI%d\n",
439 isdn_tty_at_cout("\r\nVCON\r\n", info);
443 if (!(buflen = info->xmit_count))
445 if ((info->emu.mdmreg[REG_CTS] & BIT_CTS) != 0)
446 info->msr &= ~UART_MSR_CTS;
447 info->lsr &= ~UART_LSR_TEMT;
448 /* info->xmit_count is modified here and in isdn_tty_write().
449 * So we return here if isdn_tty_write() is in the
452 atomic_inc(&info->xmit_lock);
453 if (!(atomic_dec_and_test(&info->xmit_lock)))
455 if (info->isdn_driver < 0) {
456 info->xmit_count = 0;
459 skb_res = dev->drv[info->isdn_driver]->interface->hl_hdrlen + 4;
460 #ifdef CONFIG_ISDN_AUDIO
461 if (info->vonline & 2)
462 audio_len = buflen * voice_cf[info->emu.vpar[3]];
465 skb = dev_alloc_skb(skb_res + buflen + audio_len);
467 skb = dev_alloc_skb(skb_res + buflen);
471 "isdn_tty: Out of memory in ttyI%d senddown\n",
475 skb_reserve(skb, skb_res);
476 memcpy(skb_put(skb, buflen), info->port.xmit_buf, buflen);
477 info->xmit_count = 0;
478 #ifdef CONFIG_ISDN_AUDIO
479 if (info->vonline & 2) {
480 /* For now, ifmt is fixed to 1 (alaw), since this
481 * is used with ISDN everywhere in the world, except
482 * US, Canada and Japan.
483 * Later, when US-ISDN protocols are implemented,
484 * this setting will depend on the D-channel protocol.
488 /* voice conversion/decompression */
489 switch (info->emu.vpar[3]) {
493 /* adpcm, compatible to ZyXel 1496 modem
494 * with ROM revision 6.01
496 audio_len = isdn_audio_adpcm2xlaw(info->adpcms,
499 skb_put(skb, audio_len),
501 skb_pull(skb, buflen);
502 skb_trim(skb, audio_len);
507 isdn_audio_alaw2ulaw(skb->data,
513 isdn_audio_ulaw2alaw(skb->data,
518 #endif /* CONFIG_ISDN_AUDIO */
519 if (info->emu.mdmreg[REG_T70] & BIT_T70) {
520 /* Add T.70 simplified header */
521 if (info->emu.mdmreg[REG_T70] & BIT_T70_EXT)
522 memcpy(skb_push(skb, 2), "\1\0", 2);
524 memcpy(skb_push(skb, 4), "\1\0\1\0", 4);
526 skb_queue_tail(&info->xmit_queue, skb);
529 /************************************************************
533 * mostly "stolen" from original Linux-serial.c and friends.
535 ************************************************************/
537 /* The next routine is called once from within timer-interrupt
538 * triggered within isdn_tty_modem_ncarrier(). It calls
539 * isdn_tty_modem_result() to stuff a "NO CARRIER" Message
540 * into the tty's buffer.
543 isdn_tty_modem_do_ncarrier(unsigned long data)
545 modem_info *info = (modem_info *) data;
546 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
549 /* Next routine is called, whenever the DTR-signal is raised.
550 * It checks the ncarrier-flag, and triggers the above routine
551 * when necessary. The ncarrier-flag is set, whenever DTR goes
555 isdn_tty_modem_ncarrier(modem_info *info)
557 if (info->ncarrier) {
558 info->nc_timer.expires = jiffies + HZ;
559 add_timer(&info->nc_timer);
564 * return the usage calculated by si and layer 2 protocol
567 isdn_calc_usage(int si, int l2)
569 int usg = ISDN_USAGE_MODEM;
571 #ifdef CONFIG_ISDN_AUDIO
574 case ISDN_PROTO_L2_MODEM:
575 usg = ISDN_USAGE_MODEM;
577 #ifdef CONFIG_ISDN_TTY_FAX
578 case ISDN_PROTO_L2_FAX:
579 usg = ISDN_USAGE_FAX;
582 case ISDN_PROTO_L2_TRANS:
584 usg = ISDN_USAGE_VOICE;
592 /* isdn_tty_dial() performs dialing of a tty an the necessary
593 * setup of the lower levels before that.
596 isdn_tty_dial(char *n, modem_info *info, atemu *m)
598 int usg = ISDN_USAGE_MODEM;
600 int l2 = m->mdmreg[REG_L2PROT];
606 for (j = 7; j >= 0; j--)
607 if (m->mdmreg[REG_SI1] & (1 << j)) {
611 usg = isdn_calc_usage(si, l2);
612 #ifdef CONFIG_ISDN_AUDIO
614 (l2 != ISDN_PROTO_L2_MODEM)
615 #ifdef CONFIG_ISDN_TTY_FAX
616 && (l2 != ISDN_PROTO_L2_FAX)
619 l2 = ISDN_PROTO_L2_TRANS;
620 usg = ISDN_USAGE_VOICE;
623 m->mdmreg[REG_SI1I] = si2bit[si];
624 spin_lock_irqsave(&dev->lock, flags);
625 i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn);
627 spin_unlock_irqrestore(&dev->lock, flags);
628 isdn_tty_modem_result(RESULT_NO_DIALTONE, info);
630 info->isdn_driver = dev->drvmap[i];
631 info->isdn_channel = dev->chanmap[i];
633 dev->m_idx[i] = info->line;
634 dev->usage[i] |= ISDN_USAGE_OUTGOING;
636 strcpy(info->last_num, n);
638 spin_unlock_irqrestore(&dev->lock, flags);
639 cmd.driver = info->isdn_driver;
640 cmd.arg = info->isdn_channel;
641 cmd.command = ISDN_CMD_CLREAZ;
643 strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver));
644 cmd.driver = info->isdn_driver;
645 cmd.command = ISDN_CMD_SETEAZ;
647 cmd.driver = info->isdn_driver;
648 cmd.command = ISDN_CMD_SETL2;
650 cmd.arg = info->isdn_channel + (l2 << 8);
652 cmd.driver = info->isdn_driver;
653 cmd.command = ISDN_CMD_SETL3;
654 cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8);
655 #ifdef CONFIG_ISDN_TTY_FAX
656 if (l2 == ISDN_PROTO_L2_FAX) {
657 cmd.parm.fax = info->fax;
658 info->fax->direction = ISDN_TTY_FAX_CONN_OUT;
662 cmd.driver = info->isdn_driver;
663 cmd.arg = info->isdn_channel;
664 sprintf(cmd.parm.setup.phone, "%s", n);
665 sprintf(cmd.parm.setup.eazmsn, "%s",
666 isdn_map_eaz2msn(m->msn, info->isdn_driver));
667 cmd.parm.setup.si1 = si;
668 cmd.parm.setup.si2 = m->mdmreg[REG_SI2];
669 cmd.command = ISDN_CMD_DIAL;
671 info->emu.carrierwait = 0;
672 strcpy(dev->num[i], n);
675 isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1);
679 /* isdn_tty_hangup() disassociates a tty from the real
680 * ISDN-line (hangup). The usage-status is cleared
681 * and some cleanup is done also.
684 isdn_tty_modem_hup(modem_info *info, int local)
692 di = info->isdn_driver;
693 ch = info->isdn_channel;
694 if (di < 0 || ch < 0)
697 info->isdn_driver = -1;
698 info->isdn_channel = -1;
700 #ifdef ISDN_DEBUG_MODEM_HUP
701 printk(KERN_DEBUG "Mhup ttyI%d\n", info->line);
704 isdn_tty_flush_buffer(info->port.tty);
706 info->last_lhup = local;
708 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
710 #ifdef CONFIG_ISDN_AUDIO
712 #ifdef CONFIG_ISDN_TTY_FAX
714 info->fax->phase = ISDN_FAX_PHASE_IDLE;
716 info->emu.vpar[4] = 0;
717 info->emu.vpar[5] = 8;
718 kfree(info->dtmf_state);
719 info->dtmf_state = NULL;
720 kfree(info->silence_state);
721 info->silence_state = NULL;
727 if ((info->msr & UART_MSR_RI) &&
728 (info->emu.mdmreg[REG_RUNG] & BIT_RUNG))
729 isdn_tty_modem_result(RESULT_RUNG, info);
730 info->msr &= ~(UART_MSR_DCD | UART_MSR_RI);
731 info->lsr |= UART_LSR_TEMT;
735 cmd.command = ISDN_CMD_HANGUP;
740 isdn_all_eaz(di, ch);
741 info->emu.mdmreg[REG_RINGCNT] = 0;
742 isdn_free_channel(di, ch, 0);
744 if (info->drv_index >= 0) {
745 dev->m_idx[info->drv_index] = -1;
746 info->drv_index = -1;
751 * Begin of a CAPI like interface, currently used only for
752 * supplementary service (CAPI 2.0 part III)
754 #include <linux/isdn/capicmd.h>
755 #include <linux/module.h>
758 isdn_tty_capi_facility(capi_msg *cm) {
759 return (-1); /* dummy */
762 /* isdn_tty_suspend() tries to suspend the current tty connection
765 isdn_tty_suspend(char *id, modem_info *info, atemu *m)
774 #ifdef ISDN_DEBUG_MODEM_SERVICES
775 printk(KERN_DEBUG "Msusp ttyI%d\n", info->line);
778 if ((info->isdn_driver >= 0)) {
779 cmd.parm.cmsg.Length = l + 18;
780 cmd.parm.cmsg.Command = CAPI_FACILITY;
781 cmd.parm.cmsg.Subcommand = CAPI_REQ;
782 cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1;
783 cmd.parm.cmsg.para[0] = 3; /* 16 bit 0x0003 suplementary service */
784 cmd.parm.cmsg.para[1] = 0;
785 cmd.parm.cmsg.para[2] = l + 3;
786 cmd.parm.cmsg.para[3] = 4; /* 16 bit 0x0004 Suspend */
787 cmd.parm.cmsg.para[4] = 0;
788 cmd.parm.cmsg.para[5] = l;
789 strncpy(&cmd.parm.cmsg.para[6], id, l);
790 cmd.command = CAPI_PUT_MESSAGE;
791 cmd.driver = info->isdn_driver;
792 cmd.arg = info->isdn_channel;
797 /* isdn_tty_resume() tries to resume a suspended call
798 * setup of the lower levels before that. unfortunately here is no
799 * checking for compatibility of used protocols implemented by Q931
800 * It does the same things like isdn_tty_dial, the last command
801 * is different, may be we can merge it.
805 isdn_tty_resume(char *id, modem_info *info, atemu *m)
807 int usg = ISDN_USAGE_MODEM;
809 int l2 = m->mdmreg[REG_L2PROT];
817 for (j = 7; j >= 0; j--)
818 if (m->mdmreg[REG_SI1] & (1 << j)) {
822 usg = isdn_calc_usage(si, l2);
823 #ifdef CONFIG_ISDN_AUDIO
825 (l2 != ISDN_PROTO_L2_MODEM)
826 #ifdef CONFIG_ISDN_TTY_FAX
827 && (l2 != ISDN_PROTO_L2_FAX)
830 l2 = ISDN_PROTO_L2_TRANS;
831 usg = ISDN_USAGE_VOICE;
834 m->mdmreg[REG_SI1I] = si2bit[si];
835 spin_lock_irqsave(&dev->lock, flags);
836 i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn);
838 spin_unlock_irqrestore(&dev->lock, flags);
839 isdn_tty_modem_result(RESULT_NO_DIALTONE, info);
841 info->isdn_driver = dev->drvmap[i];
842 info->isdn_channel = dev->chanmap[i];
844 dev->m_idx[i] = info->line;
845 dev->usage[i] |= ISDN_USAGE_OUTGOING;
847 // strcpy(info->last_num, n);
849 spin_unlock_irqrestore(&dev->lock, flags);
850 cmd.driver = info->isdn_driver;
851 cmd.arg = info->isdn_channel;
852 cmd.command = ISDN_CMD_CLREAZ;
854 strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver));
855 cmd.driver = info->isdn_driver;
856 cmd.command = ISDN_CMD_SETEAZ;
858 cmd.driver = info->isdn_driver;
859 cmd.command = ISDN_CMD_SETL2;
861 cmd.arg = info->isdn_channel + (l2 << 8);
863 cmd.driver = info->isdn_driver;
864 cmd.command = ISDN_CMD_SETL3;
865 cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8);
867 cmd.driver = info->isdn_driver;
868 cmd.arg = info->isdn_channel;
869 cmd.parm.cmsg.Length = l + 18;
870 cmd.parm.cmsg.Command = CAPI_FACILITY;
871 cmd.parm.cmsg.Subcommand = CAPI_REQ;
872 cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1;
873 cmd.parm.cmsg.para[0] = 3; /* 16 bit 0x0003 suplementary service */
874 cmd.parm.cmsg.para[1] = 0;
875 cmd.parm.cmsg.para[2] = l + 3;
876 cmd.parm.cmsg.para[3] = 5; /* 16 bit 0x0005 Resume */
877 cmd.parm.cmsg.para[4] = 0;
878 cmd.parm.cmsg.para[5] = l;
879 strncpy(&cmd.parm.cmsg.para[6], id, l);
880 cmd.command = CAPI_PUT_MESSAGE;
882 // strcpy(dev->num[i], n);
885 isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1);
889 /* isdn_tty_send_msg() sends a message to a HL driver
890 * This is used for hybrid modem cards to send AT commands to it
894 isdn_tty_send_msg(modem_info *info, atemu *m, char *msg)
896 int usg = ISDN_USAGE_MODEM;
898 int l2 = m->mdmreg[REG_L2PROT];
907 isdn_tty_modem_result(RESULT_ERROR, info);
910 for (j = 7; j >= 0; j--)
911 if (m->mdmreg[REG_SI1] & (1 << j)) {
915 usg = isdn_calc_usage(si, l2);
916 #ifdef CONFIG_ISDN_AUDIO
918 (l2 != ISDN_PROTO_L2_MODEM)
919 #ifdef CONFIG_ISDN_TTY_FAX
920 && (l2 != ISDN_PROTO_L2_FAX)
923 l2 = ISDN_PROTO_L2_TRANS;
924 usg = ISDN_USAGE_VOICE;
927 m->mdmreg[REG_SI1I] = si2bit[si];
928 spin_lock_irqsave(&dev->lock, flags);
929 i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn);
931 spin_unlock_irqrestore(&dev->lock, flags);
932 isdn_tty_modem_result(RESULT_NO_DIALTONE, info);
934 info->isdn_driver = dev->drvmap[i];
935 info->isdn_channel = dev->chanmap[i];
937 dev->m_idx[i] = info->line;
938 dev->usage[i] |= ISDN_USAGE_OUTGOING;
941 spin_unlock_irqrestore(&dev->lock, flags);
942 cmd.driver = info->isdn_driver;
943 cmd.arg = info->isdn_channel;
944 cmd.command = ISDN_CMD_CLREAZ;
946 strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver));
947 cmd.driver = info->isdn_driver;
948 cmd.command = ISDN_CMD_SETEAZ;
950 cmd.driver = info->isdn_driver;
951 cmd.command = ISDN_CMD_SETL2;
953 cmd.arg = info->isdn_channel + (l2 << 8);
955 cmd.driver = info->isdn_driver;
956 cmd.command = ISDN_CMD_SETL3;
957 cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8);
959 cmd.driver = info->isdn_driver;
960 cmd.arg = info->isdn_channel;
961 cmd.parm.cmsg.Length = l + 14;
962 cmd.parm.cmsg.Command = CAPI_MANUFACTURER;
963 cmd.parm.cmsg.Subcommand = CAPI_REQ;
964 cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1;
965 cmd.parm.cmsg.para[0] = l + 1;
966 strncpy(&cmd.parm.cmsg.para[1], msg, l);
967 cmd.parm.cmsg.para[l + 1] = 0xd;
968 cmd.command = CAPI_PUT_MESSAGE;
969 /* info->dialing = 1;
970 strcpy(dev->num[i], n);
978 isdn_tty_paranoia_check(modem_info *info, char *name, const char *routine)
980 #ifdef MODEM_PARANOIA_CHECK
982 printk(KERN_WARNING "isdn_tty: null info_struct for %s in %s\n",
986 if (info->magic != ISDN_ASYNC_MAGIC) {
987 printk(KERN_WARNING "isdn_tty: bad magic for modem struct %s in %s\n",
996 * This routine is called to set the UART divisor registers to match
997 * the specified baud rate for a serial port.
1000 isdn_tty_change_speed(modem_info *info)
1002 struct tty_port *port = &info->port;
1010 cflag = port->tty->termios.c_cflag;
1012 quot = i = cflag & CBAUD;
1016 port->tty->termios.c_cflag &= ~CBAUDEX;
1021 info->mcr |= UART_MCR_DTR;
1022 isdn_tty_modem_ncarrier(info);
1024 info->mcr &= ~UART_MCR_DTR;
1025 if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) {
1026 #ifdef ISDN_DEBUG_MODEM_HUP
1027 printk(KERN_DEBUG "Mhup in changespeed\n");
1031 isdn_tty_modem_reset_regs(info, 0);
1032 isdn_tty_modem_hup(info, 1);
1036 /* byte size and parity */
1037 cval = cflag & (CSIZE | CSTOPB);
1040 cval |= UART_LCR_PARITY;
1041 if (!(cflag & PARODD))
1042 cval |= UART_LCR_EPAR;
1044 /* CTS flow control flag and modem status interrupts */
1045 if (cflag & CRTSCTS) {
1046 port->flags |= ASYNC_CTS_FLOW;
1048 port->flags &= ~ASYNC_CTS_FLOW;
1050 port->flags &= ~ASYNC_CHECK_CD;
1052 port->flags |= ASYNC_CHECK_CD;
1057 isdn_tty_startup(modem_info *info)
1059 if (info->port.flags & ASYNC_INITIALIZED)
1061 isdn_lock_drivers();
1062 #ifdef ISDN_DEBUG_MODEM_OPEN
1063 printk(KERN_DEBUG "starting up ttyi%d ...\n", info->line);
1066 * Now, initialize the UART
1068 info->mcr = UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2;
1070 clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
1072 * and set the speed of the serial port
1074 isdn_tty_change_speed(info);
1076 info->port.flags |= ASYNC_INITIALIZED;
1077 info->msr |= (UART_MSR_DSR | UART_MSR_CTS);
1078 info->send_outstanding = 0;
1083 * This routine will shutdown a serial port; interrupts are disabled, and
1084 * DTR is dropped if the hangup on close termio flag is on.
1087 isdn_tty_shutdown(modem_info *info)
1089 if (!(info->port.flags & ASYNC_INITIALIZED))
1091 #ifdef ISDN_DEBUG_MODEM_OPEN
1092 printk(KERN_DEBUG "Shutting down isdnmodem port %d ....\n", info->line);
1094 isdn_unlock_drivers();
1095 info->msr &= ~UART_MSR_RI;
1096 if (!info->port.tty || (info->port.tty->termios.c_cflag & HUPCL)) {
1097 info->mcr &= ~(UART_MCR_DTR | UART_MCR_RTS);
1098 if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) {
1099 isdn_tty_modem_reset_regs(info, 0);
1100 #ifdef ISDN_DEBUG_MODEM_HUP
1101 printk(KERN_DEBUG "Mhup in isdn_tty_shutdown\n");
1103 isdn_tty_modem_hup(info, 1);
1107 set_bit(TTY_IO_ERROR, &info->port.tty->flags);
1109 info->port.flags &= ~ASYNC_INITIALIZED;
1112 /* isdn_tty_write() is the main send-routine. It is called from the upper
1113 * levels within the kernel to perform sending data. Depending on the
1114 * online-flag it either directs output to the at-command-interpreter or
1115 * to the lower level. Additional tasks done here:
1116 * - If online, check for escape-sequence (+++)
1117 * - If sending audio-data, call isdn_tty_DLEdown() to parse DLE-codes.
1118 * - If receiving audio-data, call isdn_tty_end_vrx() to abort if needed.
1119 * - If dialing, abort dial.
1122 isdn_tty_write(struct tty_struct *tty, const u_char *buf, int count)
1126 modem_info *info = (modem_info *) tty->driver_data;
1127 atemu *m = &info->emu;
1129 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_write"))
1131 /* See isdn_tty_senddown() */
1132 atomic_inc(&info->xmit_lock);
1135 if (c > info->xmit_size - info->xmit_count)
1136 c = info->xmit_size - info->xmit_count;
1137 if (info->isdn_driver >= 0 && c > dev->drv[info->isdn_driver]->maxbufsize)
1138 c = dev->drv[info->isdn_driver]->maxbufsize;
1141 if ((info->online > 1)
1142 #ifdef CONFIG_ISDN_AUDIO
1143 || (info->vonline & 3)
1146 #ifdef CONFIG_ISDN_AUDIO
1149 isdn_tty_check_esc(buf, m->mdmreg[REG_ESC], c,
1152 memcpy(&info->port.xmit_buf[info->xmit_count], buf, c);
1153 #ifdef CONFIG_ISDN_AUDIO
1154 if (info->vonline) {
1155 int cc = isdn_tty_handleDLEdown(info, m, c);
1156 if (info->vonline & 2) {
1158 /* If DLE decoding results in zero-transmit, but
1159 * c originally was non-zero, do a wakeup.
1162 info->msr |= UART_MSR_CTS;
1163 info->lsr |= UART_LSR_TEMT;
1165 info->xmit_count += cc;
1167 if ((info->vonline & 3) == 1) {
1168 /* Do NOT handle Ctrl-Q or Ctrl-S
1169 * when in full-duplex audio mode.
1171 if (isdn_tty_end_vrx(buf, c)) {
1172 info->vonline &= ~1;
1173 #ifdef ISDN_DEBUG_MODEM_VOICE
1175 "got !^Q/^S, send DLE-ETX,VCON on ttyI%d\n",
1178 isdn_tty_at_cout("\020\003\r\nVCON\r\n", info);
1182 if (TTY_IS_FCLASS1(info)) {
1183 int cc = isdn_tty_handleDLEdown(info, m, c);
1185 if (info->vonline & 4) { /* ETX seen */
1188 c.command = ISDN_CMD_FAXCMD;
1189 c.driver = info->isdn_driver;
1190 c.arg = info->isdn_channel;
1191 c.parm.aux.cmd = ISDN_FAX_CLASS1_CTRL;
1192 c.parm.aux.subcmd = ETX;
1196 #ifdef ISDN_DEBUG_MODEM_VOICE
1197 printk(KERN_DEBUG "fax dle cc/c %d/%d\n", cc, c);
1199 info->xmit_count += cc;
1202 info->xmit_count += c;
1204 info->msr |= UART_MSR_CTS;
1205 info->lsr |= UART_LSR_TEMT;
1206 if (info->dialing) {
1208 #ifdef ISDN_DEBUG_MODEM_HUP
1209 printk(KERN_DEBUG "Mhup in isdn_tty_write\n");
1211 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
1212 isdn_tty_modem_hup(info, 1);
1214 c = isdn_tty_edit_at(buf, c, info);
1220 atomic_dec(&info->xmit_lock);
1221 if ((info->xmit_count) || !skb_queue_empty(&info->xmit_queue)) {
1222 if (m->mdmreg[REG_DXMT] & BIT_DXMT) {
1223 isdn_tty_senddown(info);
1224 isdn_tty_tint(info);
1226 isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, 1);
1232 isdn_tty_write_room(struct tty_struct *tty)
1234 modem_info *info = (modem_info *) tty->driver_data;
1237 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_write_room"))
1240 return info->xmit_size;
1241 ret = info->xmit_size - info->xmit_count;
1242 return (ret < 0) ? 0 : ret;
1246 isdn_tty_chars_in_buffer(struct tty_struct *tty)
1248 modem_info *info = (modem_info *) tty->driver_data;
1250 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_chars_in_buffer"))
1254 return (info->xmit_count);
1258 isdn_tty_flush_buffer(struct tty_struct *tty)
1265 info = (modem_info *) tty->driver_data;
1266 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_flush_buffer")) {
1269 isdn_tty_cleanup_xmit(info);
1270 info->xmit_count = 0;
1275 isdn_tty_flush_chars(struct tty_struct *tty)
1277 modem_info *info = (modem_info *) tty->driver_data;
1279 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_flush_chars"))
1281 if ((info->xmit_count) || !skb_queue_empty(&info->xmit_queue))
1282 isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, 1);
1286 * ------------------------------------------------------------
1287 * isdn_tty_throttle()
1289 * This routine is called by the upper-layer tty layer to signal that
1290 * incoming characters should be throttled.
1291 * ------------------------------------------------------------
1294 isdn_tty_throttle(struct tty_struct *tty)
1296 modem_info *info = (modem_info *) tty->driver_data;
1298 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_throttle"))
1301 info->x_char = STOP_CHAR(tty);
1302 info->mcr &= ~UART_MCR_RTS;
1306 isdn_tty_unthrottle(struct tty_struct *tty)
1308 modem_info *info = (modem_info *) tty->driver_data;
1310 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_unthrottle"))
1316 info->x_char = START_CHAR(tty);
1318 info->mcr |= UART_MCR_RTS;
1322 * ------------------------------------------------------------
1323 * isdn_tty_ioctl() and friends
1324 * ------------------------------------------------------------
1328 * isdn_tty_get_lsr_info - get line status register info
1330 * Purpose: Let user call ioctl() to get info when the UART physically
1331 * is emptied. On bus types like RS485, the transmitter must
1332 * release the bus after transmitting. This must be done when
1333 * the transmit shift register is empty, not be done when the
1334 * transmit holding register is empty. This functionality
1335 * allows RS485 driver to be written in user space.
1338 isdn_tty_get_lsr_info(modem_info *info, uint __user *value)
1344 result = ((status & UART_LSR_TEMT) ? TIOCSER_TEMT : 0);
1345 return put_user(result, value);
1350 isdn_tty_tiocmget(struct tty_struct *tty)
1352 modem_info *info = (modem_info *) tty->driver_data;
1353 u_char control, status;
1355 if (isdn_tty_paranoia_check(info, tty->name, __func__))
1357 if (tty->flags & (1 << TTY_IO_ERROR))
1360 mutex_lock(&modem_info_mutex);
1361 #ifdef ISDN_DEBUG_MODEM_IOCTL
1362 printk(KERN_DEBUG "ttyI%d ioctl TIOCMGET\n", info->line);
1365 control = info->mcr;
1367 mutex_unlock(&modem_info_mutex);
1368 return ((control & UART_MCR_RTS) ? TIOCM_RTS : 0)
1369 | ((control & UART_MCR_DTR) ? TIOCM_DTR : 0)
1370 | ((status & UART_MSR_DCD) ? TIOCM_CAR : 0)
1371 | ((status & UART_MSR_RI) ? TIOCM_RNG : 0)
1372 | ((status & UART_MSR_DSR) ? TIOCM_DSR : 0)
1373 | ((status & UART_MSR_CTS) ? TIOCM_CTS : 0);
1377 isdn_tty_tiocmset(struct tty_struct *tty,
1378 unsigned int set, unsigned int clear)
1380 modem_info *info = (modem_info *) tty->driver_data;
1382 if (isdn_tty_paranoia_check(info, tty->name, __func__))
1384 if (tty->flags & (1 << TTY_IO_ERROR))
1387 #ifdef ISDN_DEBUG_MODEM_IOCTL
1388 printk(KERN_DEBUG "ttyI%d ioctl TIOCMxxx: %x %x\n", info->line, set, clear);
1391 mutex_lock(&modem_info_mutex);
1392 if (set & TIOCM_RTS)
1393 info->mcr |= UART_MCR_RTS;
1394 if (set & TIOCM_DTR) {
1395 info->mcr |= UART_MCR_DTR;
1396 isdn_tty_modem_ncarrier(info);
1399 if (clear & TIOCM_RTS)
1400 info->mcr &= ~UART_MCR_RTS;
1401 if (clear & TIOCM_DTR) {
1402 info->mcr &= ~UART_MCR_DTR;
1403 if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) {
1404 isdn_tty_modem_reset_regs(info, 0);
1405 #ifdef ISDN_DEBUG_MODEM_HUP
1406 printk(KERN_DEBUG "Mhup in TIOCMSET\n");
1410 isdn_tty_modem_hup(info, 1);
1413 mutex_unlock(&modem_info_mutex);
1418 isdn_tty_ioctl(struct tty_struct *tty, uint cmd, ulong arg)
1420 modem_info *info = (modem_info *) tty->driver_data;
1423 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_ioctl"))
1425 if (tty->flags & (1 << TTY_IO_ERROR))
1428 case TCSBRK: /* SVID version: non-zero arg --> no break */
1429 #ifdef ISDN_DEBUG_MODEM_IOCTL
1430 printk(KERN_DEBUG "ttyI%d ioctl TCSBRK\n", info->line);
1432 retval = tty_check_change(tty);
1435 tty_wait_until_sent(tty, 0);
1437 case TCSBRKP: /* support for POSIX tcsendbreak() */
1438 #ifdef ISDN_DEBUG_MODEM_IOCTL
1439 printk(KERN_DEBUG "ttyI%d ioctl TCSBRKP\n", info->line);
1441 retval = tty_check_change(tty);
1444 tty_wait_until_sent(tty, 0);
1446 case TIOCSERGETLSR: /* Get line status register */
1447 #ifdef ISDN_DEBUG_MODEM_IOCTL
1448 printk(KERN_DEBUG "ttyI%d ioctl TIOCSERGETLSR\n", info->line);
1450 return isdn_tty_get_lsr_info(info, (uint __user *) arg);
1452 #ifdef ISDN_DEBUG_MODEM_IOCTL
1453 printk(KERN_DEBUG "UNKNOWN ioctl 0x%08x on ttyi%d\n", cmd, info->line);
1455 return -ENOIOCTLCMD;
1461 isdn_tty_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
1463 modem_info *info = (modem_info *) tty->driver_data;
1466 isdn_tty_change_speed(info);
1468 if (tty->termios.c_cflag == old_termios->c_cflag &&
1469 tty->termios.c_ispeed == old_termios->c_ispeed &&
1470 tty->termios.c_ospeed == old_termios->c_ospeed)
1472 isdn_tty_change_speed(info);
1473 if ((old_termios->c_cflag & CRTSCTS) &&
1474 !(tty->termios.c_cflag & CRTSCTS))
1475 tty->hw_stopped = 0;
1480 * ------------------------------------------------------------
1481 * isdn_tty_open() and friends
1482 * ------------------------------------------------------------
1485 static int isdn_tty_install(struct tty_driver *driver, struct tty_struct *tty)
1487 modem_info *info = &dev->mdm.info[tty->index];
1489 if (isdn_tty_paranoia_check(info, tty->name, __func__))
1492 tty->driver_data = info;
1494 return tty_port_install(&info->port, driver, tty);
1498 * This routine is called whenever a serial port is opened. It
1499 * enables interrupts for a serial port, linking in its async structure into
1500 * the IRQ chain. It also performs the serial-specific
1501 * initialization for the tty structure.
1504 isdn_tty_open(struct tty_struct *tty, struct file *filp)
1506 modem_info *info = tty->driver_data;
1507 struct tty_port *port = &info->port;
1510 #ifdef ISDN_DEBUG_MODEM_OPEN
1511 printk(KERN_DEBUG "isdn_tty_open %s, count = %d\n", tty->name,
1517 * Start up serial port
1519 retval = isdn_tty_startup(info);
1521 #ifdef ISDN_DEBUG_MODEM_OPEN
1522 printk(KERN_DEBUG "isdn_tty_open return after startup\n");
1526 retval = tty_port_block_til_ready(port, tty, filp);
1528 #ifdef ISDN_DEBUG_MODEM_OPEN
1529 printk(KERN_DEBUG "isdn_tty_open return after isdn_tty_block_til_ready \n");
1533 #ifdef ISDN_DEBUG_MODEM_OPEN
1534 printk(KERN_DEBUG "isdn_tty_open ttyi%d successful...\n", info->line);
1537 #ifdef ISDN_DEBUG_MODEM_OPEN
1538 printk(KERN_DEBUG "isdn_tty_open normal exit\n");
1544 isdn_tty_close(struct tty_struct *tty, struct file *filp)
1546 modem_info *info = (modem_info *) tty->driver_data;
1547 struct tty_port *port = &info->port;
1550 if (!info || isdn_tty_paranoia_check(info, tty->name, "isdn_tty_close"))
1552 if (tty_hung_up_p(filp)) {
1553 #ifdef ISDN_DEBUG_MODEM_OPEN
1554 printk(KERN_DEBUG "isdn_tty_close return after tty_hung_up_p\n");
1558 if ((tty->count == 1) && (port->count != 1)) {
1560 * Uh, oh. tty->count is 1, which means that the tty
1561 * structure will be freed. Info->count should always
1562 * be one in these conditions. If it's greater than
1563 * one, we've got real problems, since it means the
1564 * serial port won't be shutdown.
1566 printk(KERN_ERR "isdn_tty_close: bad port count; tty->count is 1, "
1567 "info->count is %d\n", port->count);
1570 if (--port->count < 0) {
1571 printk(KERN_ERR "isdn_tty_close: bad port count for ttyi%d: %d\n",
1572 info->line, port->count);
1576 #ifdef ISDN_DEBUG_MODEM_OPEN
1577 printk(KERN_DEBUG "isdn_tty_close after info->count != 0\n");
1581 port->flags |= ASYNC_CLOSING;
1585 * At this point we stop accepting input. To do this, we
1586 * disable the receive line status interrupts, and tell the
1587 * interrupt driver to stop checking the data ready bit in the
1588 * line status register.
1590 if (port->flags & ASYNC_INITIALIZED) {
1591 tty_wait_until_sent_from_close(tty, 3000); /* 30 seconds timeout */
1593 * Before we drop DTR, make sure the UART transmitter
1594 * has completely drained; this is especially
1595 * important if there is a transmit FIFO!
1597 timeout = jiffies + HZ;
1598 while (!(info->lsr & UART_LSR_TEMT)) {
1599 schedule_timeout_interruptible(20);
1600 if (time_after(jiffies, timeout))
1605 isdn_tty_shutdown(info);
1606 isdn_tty_flush_buffer(tty);
1607 tty_ldisc_flush(tty);
1611 tty_port_close_end(port, tty);
1612 #ifdef ISDN_DEBUG_MODEM_OPEN
1613 printk(KERN_DEBUG "isdn_tty_close normal exit\n");
1618 * isdn_tty_hangup() --- called by tty_hangup() when a hangup is signaled.
1621 isdn_tty_hangup(struct tty_struct *tty)
1623 modem_info *info = (modem_info *) tty->driver_data;
1624 struct tty_port *port = &info->port;
1626 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_hangup"))
1628 isdn_tty_shutdown(info);
1630 port->flags &= ~ASYNC_NORMAL_ACTIVE;
1632 wake_up_interruptible(&port->open_wait);
1635 /* This routine initializes all emulator-data.
1638 isdn_tty_reset_profile(atemu *m)
1651 m->profile[11] = 70;
1652 m->profile[12] = 0x45;
1654 m->profile[14] = ISDN_PROTO_L2_X75I;
1655 m->profile[15] = ISDN_PROTO_L3_TRANS;
1656 m->profile[16] = ISDN_SERIAL_XMIT_SIZE / 16;
1657 m->profile[17] = ISDN_MODEM_WINSIZE;
1666 #ifdef CONFIG_ISDN_AUDIO
1668 isdn_tty_modem_reset_vpar(atemu *m)
1670 m->vpar[0] = 2; /* Voice-device (2 = phone line) */
1671 m->vpar[1] = 0; /* Silence detection level (0 = none ) */
1672 m->vpar[2] = 70; /* Silence interval (7 sec. ) */
1673 m->vpar[3] = 2; /* Compression type (1 = ADPCM-2 ) */
1674 m->vpar[4] = 0; /* DTMF detection level (0 = softcode ) */
1675 m->vpar[5] = 8; /* DTMF interval (8 * 5 ms. ) */
1679 #ifdef CONFIG_ISDN_TTY_FAX
1681 isdn_tty_modem_reset_faxpar(modem_info *info)
1683 T30_s *f = info->fax;
1686 f->phase = ISDN_FAX_PHASE_IDLE;
1688 f->resolution = 1; /* fine */
1689 f->rate = 5; /* 14400 bit/s */
1696 memset(&f->id[0], 32, FAXIDLEN - 1);
1697 f->id[FAXIDLEN - 1] = 0;
1708 memset(&f->pollid[0], 32, FAXIDLEN - 1);
1709 f->pollid[FAXIDLEN - 1] = 0;
1714 isdn_tty_modem_reset_regs(modem_info *info, int force)
1716 atemu *m = &info->emu;
1717 if ((m->mdmreg[REG_DTRR] & BIT_DTRR) || force) {
1718 memcpy(m->mdmreg, m->profile, ISDN_MODEM_NUMREG);
1719 memcpy(m->msn, m->pmsn, ISDN_MSNLEN);
1720 memcpy(m->lmsn, m->plmsn, ISDN_LMSNLEN);
1721 info->xmit_size = m->mdmreg[REG_PSIZE] * 16;
1723 #ifdef CONFIG_ISDN_AUDIO
1724 isdn_tty_modem_reset_vpar(m);
1726 #ifdef CONFIG_ISDN_TTY_FAX
1727 isdn_tty_modem_reset_faxpar(info);
1733 modem_write_profile(atemu *m)
1735 memcpy(m->profile, m->mdmreg, ISDN_MODEM_NUMREG);
1736 memcpy(m->pmsn, m->msn, ISDN_MSNLEN);
1737 memcpy(m->plmsn, m->lmsn, ISDN_LMSNLEN);
1739 send_sig(SIGIO, dev->profd, 1);
1742 static const struct tty_operations modem_ops = {
1743 .install = isdn_tty_install,
1744 .open = isdn_tty_open,
1745 .close = isdn_tty_close,
1746 .write = isdn_tty_write,
1747 .flush_chars = isdn_tty_flush_chars,
1748 .write_room = isdn_tty_write_room,
1749 .chars_in_buffer = isdn_tty_chars_in_buffer,
1750 .flush_buffer = isdn_tty_flush_buffer,
1751 .ioctl = isdn_tty_ioctl,
1752 .throttle = isdn_tty_throttle,
1753 .unthrottle = isdn_tty_unthrottle,
1754 .set_termios = isdn_tty_set_termios,
1755 .hangup = isdn_tty_hangup,
1756 .tiocmget = isdn_tty_tiocmget,
1757 .tiocmset = isdn_tty_tiocmset,
1760 static int isdn_tty_carrier_raised(struct tty_port *port)
1762 modem_info *info = container_of(port, modem_info, port);
1763 return info->msr & UART_MSR_DCD;
1766 static const struct tty_port_operations isdn_tty_port_ops = {
1767 .carrier_raised = isdn_tty_carrier_raised,
1771 isdn_tty_modem_init(void)
1778 m->tty_modem = alloc_tty_driver(ISDN_MAX_CHANNELS);
1781 m->tty_modem->name = "ttyI";
1782 m->tty_modem->major = ISDN_TTY_MAJOR;
1783 m->tty_modem->minor_start = 0;
1784 m->tty_modem->type = TTY_DRIVER_TYPE_SERIAL;
1785 m->tty_modem->subtype = SERIAL_TYPE_NORMAL;
1786 m->tty_modem->init_termios = tty_std_termios;
1787 m->tty_modem->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
1788 m->tty_modem->flags = TTY_DRIVER_REAL_RAW;
1789 m->tty_modem->driver_name = "isdn_tty";
1790 tty_set_operations(m->tty_modem, &modem_ops);
1791 retval = tty_register_driver(m->tty_modem);
1793 printk(KERN_WARNING "isdn_tty: Couldn't register modem-device\n");
1796 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
1798 #ifdef CONFIG_ISDN_TTY_FAX
1799 if (!(info->fax = kmalloc(sizeof(T30_s), GFP_KERNEL))) {
1800 printk(KERN_ERR "Could not allocate fax t30-buffer\n");
1802 goto err_unregister;
1805 tty_port_init(&info->port);
1806 info->port.ops = &isdn_tty_port_ops;
1807 spin_lock_init(&info->readlock);
1808 sprintf(info->last_cause, "0000");
1809 sprintf(info->last_num, "none");
1811 info->last_lhup = 1;
1814 isdn_tty_reset_profile(&info->emu);
1815 isdn_tty_modem_reset_regs(info, 1);
1816 info->magic = ISDN_ASYNC_MAGIC;
1819 info->isdn_driver = -1;
1820 info->isdn_channel = -1;
1821 info->drv_index = -1;
1822 info->xmit_size = ISDN_SERIAL_XMIT_SIZE;
1823 init_timer(&info->nc_timer);
1824 info->nc_timer.function = isdn_tty_modem_do_ncarrier;
1825 info->nc_timer.data = (unsigned long) info;
1826 skb_queue_head_init(&info->xmit_queue);
1827 #ifdef CONFIG_ISDN_AUDIO
1828 skb_queue_head_init(&info->dtmf_queue);
1830 info->port.xmit_buf = kmalloc(ISDN_SERIAL_XMIT_MAX + 5,
1832 if (!info->port.xmit_buf) {
1833 printk(KERN_ERR "Could not allocate modem xmit-buffer\n");
1835 goto err_unregister;
1837 /* Make room for T.70 header */
1838 info->port.xmit_buf += 4;
1842 for (i--; i >= 0; i--) {
1844 #ifdef CONFIG_ISDN_TTY_FAX
1847 kfree(info->port.xmit_buf - 4);
1848 info->port.xmit_buf = NULL;
1849 tty_port_destroy(&info->port);
1851 tty_unregister_driver(m->tty_modem);
1853 put_tty_driver(m->tty_modem);
1854 m->tty_modem = NULL;
1864 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
1865 info = &dev->mdm.info[i];
1866 isdn_tty_cleanup_xmit(info);
1867 #ifdef CONFIG_ISDN_TTY_FAX
1870 kfree(info->port.xmit_buf - 4);
1871 info->port.xmit_buf = NULL;
1872 tty_port_destroy(&info->port);
1874 tty_unregister_driver(dev->mdm.tty_modem);
1875 put_tty_driver(dev->mdm.tty_modem);
1876 dev->mdm.tty_modem = NULL;
1881 * isdn_tty_match_icall(char *MSN, atemu *tty_emulator, int dev_idx)
1882 * match the MSN against the MSNs (glob patterns) defined for tty_emulator,
1883 * and return 0 for match, 1 for no match, 2 if MSN could match if longer.
1887 isdn_tty_match_icall(char *cid, atemu *emu, int di)
1889 #ifdef ISDN_DEBUG_MODEM_ICALL
1890 printk(KERN_DEBUG "m_fi: msn=%s lmsn=%s mmsn=%s mreg[SI1]=%d mreg[SI2]=%d\n",
1891 emu->msn, emu->lmsn, isdn_map_eaz2msn(emu->msn, di),
1892 emu->mdmreg[REG_SI1], emu->mdmreg[REG_SI2]);
1894 if (strlen(emu->lmsn)) {
1895 char *p = emu->lmsn;
1901 if ((q = strchr(p, ';')))
1903 if ((tmp = isdn_msncmp(cid, isdn_map_eaz2msn(p, di))) > ret)
1905 #ifdef ISDN_DEBUG_MODEM_ICALL
1906 printk(KERN_DEBUG "m_fi: lmsnX=%s mmsn=%s -> tmp=%d\n",
1907 p, isdn_map_eaz2msn(emu->msn, di), tmp);
1922 tmp = isdn_msncmp(cid, isdn_map_eaz2msn(emu->msn, di));
1923 #ifdef ISDN_DEBUG_MODEM_ICALL
1924 printk(KERN_DEBUG "m_fi: mmsn=%s -> tmp=%d\n",
1925 isdn_map_eaz2msn(emu->msn, di), tmp);
1932 * An incoming call-request has arrived.
1933 * Search the tty-devices for an appropriate device and bind
1934 * it to the ISDN-Channel.
1937 * 0 = No matching device found.
1938 * 1 = A matching device found.
1939 * 3 = No match found, but eventually would match, if
1943 isdn_tty_find_icall(int di, int ch, setup_parm *setup)
1954 if (!setup->phone[0]) {
1956 printk(KERN_INFO "isdn_tty: Incoming call without OAD, assuming '0'\n");
1959 si1 = (int) setup->si1;
1960 si2 = (int) setup->si2;
1961 if (!setup->eazmsn[0]) {
1962 printk(KERN_WARNING "isdn_tty: Incoming call without CPN, assuming '0'\n");
1965 eaz = setup->eazmsn;
1966 #ifdef ISDN_DEBUG_MODEM_ICALL
1967 printk(KERN_DEBUG "m_fi: eaz=%s si1=%d si2=%d\n", eaz, si1, si2);
1970 spin_lock_irqsave(&dev->lock, flags);
1971 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
1972 modem_info *info = &dev->mdm.info[i];
1974 if (info->port.count == 0)
1976 if ((info->emu.mdmreg[REG_SI1] & si2bit[si1]) && /* SI1 is matching */
1977 (info->emu.mdmreg[REG_SI2] == si2)) { /* SI2 is matching */
1978 idx = isdn_dc2minor(di, ch);
1979 #ifdef ISDN_DEBUG_MODEM_ICALL
1980 printk(KERN_DEBUG "m_fi: match1 wret=%d\n", wret);
1981 printk(KERN_DEBUG "m_fi: idx=%d flags=%08lx drv=%d ch=%d usg=%d\n", idx,
1982 info->port.flags, info->isdn_driver,
1983 info->isdn_channel, dev->usage[idx]);
1986 #ifndef FIX_FILE_TRANSFER
1987 (info->port.flags & ASYNC_NORMAL_ACTIVE) &&
1989 (info->isdn_driver == -1) &&
1990 (info->isdn_channel == -1) &&
1991 (USG_NONE(dev->usage[idx]))) {
1994 if ((matchret = isdn_tty_match_icall(eaz, &info->emu, di)) > wret)
1996 if (!matchret) { /* EAZ is matching */
1997 info->isdn_driver = di;
1998 info->isdn_channel = ch;
1999 info->drv_index = idx;
2000 dev->m_idx[idx] = info->line;
2001 dev->usage[idx] &= ISDN_USAGE_EXCLUSIVE;
2002 dev->usage[idx] |= isdn_calc_usage(si1, info->emu.mdmreg[REG_L2PROT]);
2003 strcpy(dev->num[idx], nr);
2004 strcpy(info->emu.cpn, eaz);
2005 info->emu.mdmreg[REG_SI1I] = si2bit[si1];
2006 info->emu.mdmreg[REG_PLAN] = setup->plan;
2007 info->emu.mdmreg[REG_SCREEN] = setup->screen;
2009 spin_unlock_irqrestore(&dev->lock, flags);
2010 printk(KERN_INFO "isdn_tty: call from %s, -> RING on ttyI%d\n", nr,
2012 info->msr |= UART_MSR_RI;
2013 isdn_tty_modem_result(RESULT_RING, info);
2014 isdn_timer_ctrl(ISDN_TIMER_MODEMRING, 1);
2020 spin_unlock_irqrestore(&dev->lock, flags);
2021 printk(KERN_INFO "isdn_tty: call from %s -> %s %s\n", nr, eaz,
2022 ((dev->drv[di]->flags & DRV_FLAG_REJBUS) && (wret != 2)) ? "rejected" : "ignored");
2023 return (wret == 2) ? 3 : 0;
2026 #define TTY_IS_ACTIVE(info) (info->port.flags & ASYNC_NORMAL_ACTIVE)
2029 isdn_tty_stat_callback(int i, isdn_ctrl *c)
2037 if ((mi = dev->m_idx[i]) >= 0) {
2038 info = &dev->mdm.info[mi];
2039 switch (c->command) {
2040 case ISDN_STAT_CINF:
2041 printk(KERN_DEBUG "CHARGEINFO on ttyI%d: %ld %s\n", info->line, c->arg, c->parm.num);
2042 info->emu.charge = (unsigned) simple_strtoul(c->parm.num, &e, 10);
2043 if (e == (char *)c->parm.num)
2044 info->emu.charge = 0;
2047 case ISDN_STAT_BSENT:
2048 #ifdef ISDN_TTY_STAT_DEBUG
2049 printk(KERN_DEBUG "tty_STAT_BSENT ttyI%d\n", info->line);
2051 if ((info->isdn_driver == c->driver) &&
2052 (info->isdn_channel == c->arg)) {
2053 info->msr |= UART_MSR_CTS;
2054 if (info->send_outstanding)
2055 if (!(--info->send_outstanding))
2056 info->lsr |= UART_LSR_TEMT;
2057 isdn_tty_tint(info);
2061 case ISDN_STAT_CAUSE:
2062 #ifdef ISDN_TTY_STAT_DEBUG
2063 printk(KERN_DEBUG "tty_STAT_CAUSE ttyI%d\n", info->line);
2065 /* Signal cause to tty-device */
2066 strncpy(info->last_cause, c->parm.num, 5);
2068 case ISDN_STAT_DISPLAY:
2069 #ifdef ISDN_TTY_STAT_DEBUG
2070 printk(KERN_DEBUG "tty_STAT_DISPLAY ttyI%d\n", info->line);
2072 /* Signal display to tty-device */
2073 if ((info->emu.mdmreg[REG_DISPLAY] & BIT_DISPLAY) &&
2074 !(info->emu.mdmreg[REG_RESPNUM] & BIT_RESPNUM)) {
2075 isdn_tty_at_cout("\r\n", info);
2076 isdn_tty_at_cout("DISPLAY: ", info);
2077 isdn_tty_at_cout(c->parm.display, info);
2078 isdn_tty_at_cout("\r\n", info);
2081 case ISDN_STAT_DCONN:
2082 #ifdef ISDN_TTY_STAT_DEBUG
2083 printk(KERN_DEBUG "tty_STAT_DCONN ttyI%d\n", info->line);
2085 if (TTY_IS_ACTIVE(info)) {
2086 if (info->dialing == 1) {
2092 case ISDN_STAT_DHUP:
2093 #ifdef ISDN_TTY_STAT_DEBUG
2094 printk(KERN_DEBUG "tty_STAT_DHUP ttyI%d\n", info->line);
2096 if (TTY_IS_ACTIVE(info)) {
2097 if (info->dialing == 1)
2098 isdn_tty_modem_result(RESULT_BUSY, info);
2099 if (info->dialing > 1)
2100 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
2102 #ifdef ISDN_DEBUG_MODEM_HUP
2103 printk(KERN_DEBUG "Mhup in ISDN_STAT_DHUP\n");
2105 isdn_tty_modem_hup(info, 0);
2109 case ISDN_STAT_BCONN:
2110 #ifdef ISDN_TTY_STAT_DEBUG
2111 printk(KERN_DEBUG "tty_STAT_BCONN ttyI%d\n", info->line);
2113 /* Wake up any processes waiting
2114 * for incoming call of this device when
2115 * DCD follow the state of incoming carrier
2117 if (info->port.blocked_open &&
2118 (info->emu.mdmreg[REG_DCD] & BIT_DCD)) {
2119 wake_up_interruptible(&info->port.open_wait);
2122 /* Schedule CONNECT-Message to any tty
2123 * waiting for it and
2124 * set DCD-bit of its modem-status.
2126 if (TTY_IS_ACTIVE(info) ||
2127 (info->port.blocked_open &&
2128 (info->emu.mdmreg[REG_DCD] & BIT_DCD))) {
2129 info->msr |= UART_MSR_DCD;
2130 info->emu.charge = 0;
2131 if (info->dialing & 0xf)
2137 if (USG_MODEM(dev->usage[i])) {
2138 if (info->emu.mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM) {
2139 strcpy(info->emu.connmsg, c->parm.num);
2140 isdn_tty_modem_result(RESULT_CONNECT, info);
2142 isdn_tty_modem_result(RESULT_CONNECT64000, info);
2144 if (USG_VOICE(dev->usage[i]))
2145 isdn_tty_modem_result(RESULT_VCON, info);
2149 case ISDN_STAT_BHUP:
2150 #ifdef ISDN_TTY_STAT_DEBUG
2151 printk(KERN_DEBUG "tty_STAT_BHUP ttyI%d\n", info->line);
2153 if (TTY_IS_ACTIVE(info)) {
2154 #ifdef ISDN_DEBUG_MODEM_HUP
2155 printk(KERN_DEBUG "Mhup in ISDN_STAT_BHUP\n");
2157 isdn_tty_modem_hup(info, 0);
2161 case ISDN_STAT_NODCH:
2162 #ifdef ISDN_TTY_STAT_DEBUG
2163 printk(KERN_DEBUG "tty_STAT_NODCH ttyI%d\n", info->line);
2165 if (TTY_IS_ACTIVE(info)) {
2166 if (info->dialing) {
2170 sprintf(info->last_cause, "0000");
2171 isdn_tty_modem_result(RESULT_NO_DIALTONE, info);
2173 isdn_tty_modem_hup(info, 0);
2177 case ISDN_STAT_UNLOAD:
2178 #ifdef ISDN_TTY_STAT_DEBUG
2179 printk(KERN_DEBUG "tty_STAT_UNLOAD ttyI%d\n", info->line);
2181 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
2182 info = &dev->mdm.info[i];
2183 if (info->isdn_driver == c->driver) {
2185 isdn_tty_modem_hup(info, 1);
2189 #ifdef CONFIG_ISDN_TTY_FAX
2190 case ISDN_STAT_FAXIND:
2191 if (TTY_IS_ACTIVE(info)) {
2192 isdn_tty_fax_command(info, c);
2196 #ifdef CONFIG_ISDN_AUDIO
2197 case ISDN_STAT_AUDIO:
2198 if (TTY_IS_ACTIVE(info)) {
2199 switch (c->parm.num[0]) {
2200 case ISDN_AUDIO_DTMF:
2201 if (info->vonline) {
2202 isdn_audio_put_dle_code(info,
2215 /*********************************************************************
2216 Modem-Emulator-Routines
2217 *********************************************************************/
2219 #define cmdchar(c) ((c >= ' ') && (c <= 0x7f))
2222 * Put a message from the AT-emulator into receive-buffer of tty,
2223 * convert CR, LF, and BS to values in modem-registers 3, 4 and 5.
2226 isdn_tty_at_cout(char *msg, modem_info *info)
2228 struct tty_port *port = &info->port;
2229 atemu *m = &info->emu;
2233 struct sk_buff *skb = NULL;
2238 printk(KERN_WARNING "isdn_tty: Null-Message in isdn_tty_at_cout\n");
2244 spin_lock_irqsave(&info->readlock, flags);
2245 if (port->flags & ASYNC_CLOSING) {
2246 spin_unlock_irqrestore(&info->readlock, flags);
2250 /* use queue instead of direct, if online and */
2251 /* data is in queue or buffer is full */
2252 if (info->online && ((tty_buffer_request_room(port, l) < l) ||
2253 !skb_queue_empty(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel]))) {
2254 skb = alloc_skb(l, GFP_ATOMIC);
2256 spin_unlock_irqrestore(&info->readlock, flags);
2259 sp = skb_put(skb, l);
2260 #ifdef CONFIG_ISDN_AUDIO
2261 ISDN_AUDIO_SKB_DLECOUNT(skb) = 0;
2262 ISDN_AUDIO_SKB_LOCK(skb) = 0;
2266 for (p = msg; *p; p++) {
2269 c = m->mdmreg[REG_CR];
2272 c = m->mdmreg[REG_LF];
2275 c = m->mdmreg[REG_BS];
2283 if (tty_insert_flip_char(port, c, TTY_NORMAL) == 0)
2288 __skb_queue_tail(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel], skb);
2289 dev->drv[info->isdn_driver]->rcvcount[info->isdn_channel] += skb->len;
2290 spin_unlock_irqrestore(&info->readlock, flags);
2291 /* Schedule dequeuing */
2292 if (dev->modempoll && info->rcvsched)
2293 isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1);
2296 spin_unlock_irqrestore(&info->readlock, flags);
2297 tty_flip_buffer_push(port);
2302 * Perform ATH Hangup
2305 isdn_tty_on_hook(modem_info *info)
2307 if (info->isdn_channel >= 0) {
2308 #ifdef ISDN_DEBUG_MODEM_HUP
2309 printk(KERN_DEBUG "Mhup in isdn_tty_on_hook\n");
2311 isdn_tty_modem_hup(info, 1);
2316 isdn_tty_off_hook(void)
2318 printk(KERN_DEBUG "isdn_tty_off_hook\n");
2321 #define PLUSWAIT1 (HZ / 2) /* 0.5 sec. */
2322 #define PLUSWAIT2 (HZ * 3 / 2) /* 1.5 sec */
2325 * Check Buffer for Modem-escape-sequence, activate timer-callback to
2326 * isdn_tty_modem_escape() if sequence found.
2329 * p pointer to databuffer
2330 * plus escape-character
2331 * count length of buffer
2332 * pluscount count of valid escape-characters so far
2333 * lastplus timestamp of last character
2336 isdn_tty_check_esc(const u_char *p, u_char plus, int count, int *pluscount,
2347 if (*(p++) == plus) {
2348 if ((*pluscount)++) {
2349 /* Time since last '+' > 0.5 sec. ? */
2350 if (time_after(jiffies, *lastplus + PLUSWAIT1))
2353 /* Time since last non-'+' < 1.5 sec. ? */
2354 if (time_before(jiffies, *lastplus + PLUSWAIT2))
2357 if ((*pluscount == 3) && (count == 1))
2358 isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS, 1);
2363 *lastplus = jiffies;
2369 * Return result of AT-emulator to tty-receive-buffer, depending on
2370 * modem-register 12, bit 0 and 1.
2371 * For CONNECT-messages also switch to online-mode.
2372 * For RING-message handle auto-ATA if register 0 != 0
2376 isdn_tty_modem_result(int code, modem_info *info)
2378 atemu *m = &info->emu;
2379 static char *msg[] =
2380 {"OK", "CONNECT", "RING", "NO CARRIER", "ERROR",
2381 "CONNECT 64000", "NO DIALTONE", "BUSY", "NO ANSWER",
2382 "RINGING", "NO MSN/EAZ", "VCON", "RUNG"};
2383 char s[ISDN_MSNLEN + 10];
2387 m->mdmreg[REG_RINGCNT]++;
2388 if (m->mdmreg[REG_RINGCNT] == m->mdmreg[REG_RINGATA])
2389 /* Automatically accept incoming call */
2390 isdn_tty_cmd_ATA(info);
2392 case RESULT_NO_CARRIER:
2393 #ifdef ISDN_DEBUG_MODEM_HUP
2394 printk(KERN_DEBUG "modem_result: NO CARRIER %d %d\n",
2395 (info->port.flags & ASYNC_CLOSING),
2398 m->mdmreg[REG_RINGCNT] = 0;
2399 del_timer(&info->nc_timer);
2401 if ((info->port.flags & ASYNC_CLOSING) || (!info->port.tty))
2404 #ifdef CONFIG_ISDN_AUDIO
2405 if (info->vonline & 1) {
2406 #ifdef ISDN_DEBUG_MODEM_VOICE
2407 printk(KERN_DEBUG "res3: send DLE-ETX on ttyI%d\n",
2410 /* voice-recording, add DLE-ETX */
2411 isdn_tty_at_cout("\020\003", info);
2413 if (info->vonline & 2) {
2414 #ifdef ISDN_DEBUG_MODEM_VOICE
2415 printk(KERN_DEBUG "res3: send DLE-DC4 on ttyI%d\n",
2418 /* voice-playing, add DLE-DC4 */
2419 isdn_tty_at_cout("\020\024", info);
2423 case RESULT_CONNECT:
2424 case RESULT_CONNECT64000:
2425 sprintf(info->last_cause, "0000");
2430 #ifdef ISDN_DEBUG_MODEM_VOICE
2431 printk(KERN_DEBUG "res3: send VCON on ttyI%d\n",
2434 sprintf(info->last_cause, "0000");
2438 } /* switch (code) */
2440 if (m->mdmreg[REG_RESP] & BIT_RESP) {
2442 if (m->mdmreg[REG_RESPNUM] & BIT_RESPNUM) {
2443 /* Show numeric results only */
2444 sprintf(s, "\r\n%d\r\n", code);
2445 isdn_tty_at_cout(s, info);
2447 if (code == RESULT_RING) {
2448 /* return if "show RUNG" and ringcounter>1 */
2449 if ((m->mdmreg[REG_RUNG] & BIT_RUNG) &&
2450 (m->mdmreg[REG_RINGCNT] > 1))
2452 /* print CID, _before_ _every_ ring */
2453 if (!(m->mdmreg[REG_CIDONCE] & BIT_CIDONCE)) {
2454 isdn_tty_at_cout("\r\nCALLER NUMBER: ", info);
2455 isdn_tty_at_cout(dev->num[info->drv_index], info);
2456 if (m->mdmreg[REG_CDN] & BIT_CDN) {
2457 isdn_tty_at_cout("\r\nCALLED NUMBER: ", info);
2458 isdn_tty_at_cout(info->emu.cpn, info);
2462 isdn_tty_at_cout("\r\n", info);
2463 isdn_tty_at_cout(msg[code], info);
2465 case RESULT_CONNECT:
2466 switch (m->mdmreg[REG_L2PROT]) {
2467 case ISDN_PROTO_L2_MODEM:
2468 isdn_tty_at_cout(" ", info);
2469 isdn_tty_at_cout(m->connmsg, info);
2474 /* Append CPN, if enabled */
2475 if ((m->mdmreg[REG_CPN] & BIT_CPN)) {
2476 sprintf(s, "/%s", m->cpn);
2477 isdn_tty_at_cout(s, info);
2479 /* Print CID only once, _after_ 1st RING */
2480 if ((m->mdmreg[REG_CIDONCE] & BIT_CIDONCE) &&
2481 (m->mdmreg[REG_RINGCNT] == 1)) {
2482 isdn_tty_at_cout("\r\n", info);
2483 isdn_tty_at_cout("CALLER NUMBER: ", info);
2484 isdn_tty_at_cout(dev->num[info->drv_index], info);
2485 if (m->mdmreg[REG_CDN] & BIT_CDN) {
2486 isdn_tty_at_cout("\r\nCALLED NUMBER: ", info);
2487 isdn_tty_at_cout(info->emu.cpn, info);
2491 case RESULT_NO_CARRIER:
2492 case RESULT_NO_DIALTONE:
2494 case RESULT_NO_ANSWER:
2495 m->mdmreg[REG_RINGCNT] = 0;
2496 /* Append Cause-Message if enabled */
2497 if (m->mdmreg[REG_RESPXT] & BIT_RESPXT) {
2498 sprintf(s, "/%s", info->last_cause);
2499 isdn_tty_at_cout(s, info);
2502 case RESULT_CONNECT64000:
2503 /* Append Protocol to CONNECT message */
2504 switch (m->mdmreg[REG_L2PROT]) {
2505 case ISDN_PROTO_L2_X75I:
2506 case ISDN_PROTO_L2_X75UI:
2507 case ISDN_PROTO_L2_X75BUI:
2508 isdn_tty_at_cout("/X.75", info);
2510 case ISDN_PROTO_L2_HDLC:
2511 isdn_tty_at_cout("/HDLC", info);
2513 case ISDN_PROTO_L2_V11096:
2514 isdn_tty_at_cout("/V110/9600", info);
2516 case ISDN_PROTO_L2_V11019:
2517 isdn_tty_at_cout("/V110/19200", info);
2519 case ISDN_PROTO_L2_V11038:
2520 isdn_tty_at_cout("/V110/38400", info);
2523 if (m->mdmreg[REG_T70] & BIT_T70) {
2524 isdn_tty_at_cout("/T.70", info);
2525 if (m->mdmreg[REG_T70] & BIT_T70_EXT)
2526 isdn_tty_at_cout("+", info);
2530 isdn_tty_at_cout("\r\n", info);
2533 if (code == RESULT_NO_CARRIER) {
2534 if ((info->port.flags & ASYNC_CLOSING) || (!info->port.tty))
2537 if (info->port.flags & ASYNC_CHECK_CD)
2538 tty_hangup(info->port.tty);
2544 * Display a modem-register-value.
2547 isdn_tty_show_profile(int ridx, modem_info *info)
2551 sprintf(v, "\r\n%d", info->emu.mdmreg[ridx]);
2552 isdn_tty_at_cout(v, info);
2556 * Get MSN-string from char-pointer, set pointer to end of number
2559 isdn_tty_get_msnstr(char *n, char **p)
2561 int limit = ISDN_MSNLEN - 1;
2563 while (((*p[0] >= '0' && *p[0] <= '9') ||
2564 /* Why a comma ??? */
2565 (*p[0] == ',') || (*p[0] == ':')) &&
2572 * Get phone-number from modem-commandbuffer
2575 isdn_tty_getdial(char *p, char *q, int cnt)
2578 int limit = ISDN_MSNLEN - 1; /* MUST match the size of interface var to avoid
2581 while (strchr(" 0123456789,#.*WPTSR-", *p) && *p && --cnt > 0) {
2582 if ((*p >= '0' && *p <= '9') || ((*p == 'S') && first) ||
2583 ((*p == 'R') && first) ||
2584 (*p == '*') || (*p == '#')) {
2596 #define PARSE_ERROR { isdn_tty_modem_result(RESULT_ERROR, info); return; }
2597 #define PARSE_ERROR1 { isdn_tty_modem_result(RESULT_ERROR, info); return 1; }
2600 isdn_tty_report(modem_info *info)
2602 atemu *m = &info->emu;
2605 isdn_tty_at_cout("\r\nStatistics of last connection:\r\n\r\n", info);
2606 sprintf(s, " Remote Number: %s\r\n", info->last_num);
2607 isdn_tty_at_cout(s, info);
2608 sprintf(s, " Direction: %s\r\n", info->last_dir ? "outgoing" : "incoming");
2609 isdn_tty_at_cout(s, info);
2610 isdn_tty_at_cout(" Layer-2 Protocol: ", info);
2611 switch (info->last_l2) {
2612 case ISDN_PROTO_L2_X75I:
2613 isdn_tty_at_cout("X.75i", info);
2615 case ISDN_PROTO_L2_X75UI:
2616 isdn_tty_at_cout("X.75ui", info);
2618 case ISDN_PROTO_L2_X75BUI:
2619 isdn_tty_at_cout("X.75bui", info);
2621 case ISDN_PROTO_L2_HDLC:
2622 isdn_tty_at_cout("HDLC", info);
2624 case ISDN_PROTO_L2_V11096:
2625 isdn_tty_at_cout("V.110 9600 Baud", info);
2627 case ISDN_PROTO_L2_V11019:
2628 isdn_tty_at_cout("V.110 19200 Baud", info);
2630 case ISDN_PROTO_L2_V11038:
2631 isdn_tty_at_cout("V.110 38400 Baud", info);
2633 case ISDN_PROTO_L2_TRANS:
2634 isdn_tty_at_cout("transparent", info);
2636 case ISDN_PROTO_L2_MODEM:
2637 isdn_tty_at_cout("modem", info);
2639 case ISDN_PROTO_L2_FAX:
2640 isdn_tty_at_cout("fax", info);
2643 isdn_tty_at_cout("unknown", info);
2646 if (m->mdmreg[REG_T70] & BIT_T70) {
2647 isdn_tty_at_cout("/T.70", info);
2648 if (m->mdmreg[REG_T70] & BIT_T70_EXT)
2649 isdn_tty_at_cout("+", info);
2651 isdn_tty_at_cout("\r\n", info);
2652 isdn_tty_at_cout(" Service: ", info);
2653 switch (info->last_si) {
2655 isdn_tty_at_cout("audio\r\n", info);
2658 isdn_tty_at_cout("btx\r\n", info);
2661 isdn_tty_at_cout("data\r\n", info);
2664 sprintf(s, "%d\r\n", info->last_si);
2665 isdn_tty_at_cout(s, info);
2668 sprintf(s, " Hangup location: %s\r\n", info->last_lhup ? "local" : "remote");
2669 isdn_tty_at_cout(s, info);
2670 sprintf(s, " Last cause: %s\r\n", info->last_cause);
2671 isdn_tty_at_cout(s, info);
2675 * Parse AT&.. commands.
2678 isdn_tty_cmd_ATand(char **p, modem_info *info)
2680 atemu *m = &info->emu;
2684 #define MAXRB (sizeof(rb) - 1)
2688 /* &B - Set Buffersize */
2691 if ((i < 0) || (i > ISDN_SERIAL_XMIT_MAX))
2693 #ifdef CONFIG_ISDN_AUDIO
2694 if ((m->mdmreg[REG_SI1] & 1) && (i > VBUF))
2697 m->mdmreg[REG_PSIZE] = i / 16;
2698 info->xmit_size = m->mdmreg[REG_PSIZE] * 16;
2699 switch (m->mdmreg[REG_L2PROT]) {
2700 case ISDN_PROTO_L2_V11096:
2701 case ISDN_PROTO_L2_V11019:
2702 case ISDN_PROTO_L2_V11038:
2703 info->xmit_size /= 10;
2707 /* &C - DCD Status */
2709 switch (isdn_getnum(p)) {
2711 m->mdmreg[REG_DCD] &= ~BIT_DCD;
2714 m->mdmreg[REG_DCD] |= BIT_DCD;
2721 /* &D - Set DTR-Low-behavior */
2723 switch (isdn_getnum(p)) {
2725 m->mdmreg[REG_DTRHUP] &= ~BIT_DTRHUP;
2726 m->mdmreg[REG_DTRR] &= ~BIT_DTRR;
2729 m->mdmreg[REG_DTRHUP] |= BIT_DTRHUP;
2730 m->mdmreg[REG_DTRR] &= ~BIT_DTRR;
2733 m->mdmreg[REG_DTRHUP] |= BIT_DTRHUP;
2734 m->mdmreg[REG_DTRR] |= BIT_DTRR;
2741 /* &E -Set EAZ/MSN */
2743 isdn_tty_get_msnstr(m->msn, p);
2746 /* &F -Set Factory-Defaults */
2748 if (info->msr & UART_MSR_DCD)
2750 isdn_tty_reset_profile(m);
2751 isdn_tty_modem_reset_regs(info, 1);
2753 #ifdef DUMMY_HAYES_AT
2755 /* only for be compilant with common scripts */
2756 /* &K Flowcontrol - no function */
2762 /* &L -Set Numbers to listen on */
2765 while (*p[0] && (strchr("0123456789,-*[]?;", *p[0])) &&
2766 (i < ISDN_LMSNLEN - 1))
2767 m->lmsn[i++] = *p[0]++;
2771 /* &R - Set V.110 bitrate adaption */
2776 /* Switch off V.110, back to X.75 */
2777 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I;
2778 m->mdmreg[REG_SI2] = 0;
2779 info->xmit_size = m->mdmreg[REG_PSIZE] * 16;
2782 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11096;
2783 m->mdmreg[REG_SI2] = 197;
2784 info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10;
2787 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11019;
2788 m->mdmreg[REG_SI2] = 199;
2789 info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10;
2792 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11038;
2793 m->mdmreg[REG_SI2] = 198; /* no existing standard for this */
2794 info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10;
2799 /* Switch off T.70 */
2800 m->mdmreg[REG_T70] &= ~(BIT_T70 | BIT_T70_EXT);
2802 m->mdmreg[REG_SI1] |= 4;
2805 /* &S - Set Windowsize */
2808 if ((i > 0) && (i < 9))
2809 m->mdmreg[REG_WSIZE] = i;
2814 /* &V - Show registers */
2816 isdn_tty_at_cout("\r\n", info);
2817 for (i = 0; i < ISDN_MODEM_NUMREG; i++) {
2818 sprintf(rb, "S%02d=%03d%s", i,
2819 m->mdmreg[i], ((i + 1) % 10) ? " " : "\r\n");
2820 isdn_tty_at_cout(rb, info);
2822 sprintf(rb, "\r\nEAZ/MSN: %.50s\r\n",
2823 strlen(m->msn) ? m->msn : "None");
2824 isdn_tty_at_cout(rb, info);
2825 if (strlen(m->lmsn)) {
2826 isdn_tty_at_cout("\r\nListen: ", info);
2827 isdn_tty_at_cout(m->lmsn, info);
2828 isdn_tty_at_cout("\r\n", info);
2832 /* &W - Write Profile */
2837 modem_write_profile(m);
2844 /* &X - Switch to BTX-Mode and T.70 */
2846 switch (isdn_getnum(p)) {
2848 m->mdmreg[REG_T70] &= ~(BIT_T70 | BIT_T70_EXT);
2849 info->xmit_size = m->mdmreg[REG_PSIZE] * 16;
2852 m->mdmreg[REG_T70] |= BIT_T70;
2853 m->mdmreg[REG_T70] &= ~BIT_T70_EXT;
2854 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I;
2855 info->xmit_size = 112;
2856 m->mdmreg[REG_SI1] = 4;
2857 m->mdmreg[REG_SI2] = 0;
2860 m->mdmreg[REG_T70] |= (BIT_T70 | BIT_T70_EXT);
2861 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I;
2862 info->xmit_size = 112;
2863 m->mdmreg[REG_SI1] = 4;
2864 m->mdmreg[REG_SI2] = 0;
2877 isdn_tty_check_ats(int mreg, int mval, modem_info *info, atemu *m)
2879 /* Some plausibility checks */
2882 if (mval > ISDN_PROTO_L2_MAX)
2886 if ((mval * 16) > ISDN_SERIAL_XMIT_MAX)
2888 #ifdef CONFIG_ISDN_AUDIO
2889 if ((m->mdmreg[REG_SI1] & 1) && (mval > VBUFX))
2892 info->xmit_size = mval * 16;
2893 switch (m->mdmreg[REG_L2PROT]) {
2894 case ISDN_PROTO_L2_V11096:
2895 case ISDN_PROTO_L2_V11019:
2896 case ISDN_PROTO_L2_V11038:
2897 info->xmit_size /= 10;
2903 /* readonly registers */
2910 * Perform ATS command
2913 isdn_tty_cmd_ATS(char **p, modem_info *info)
2915 atemu *m = &info->emu;
2921 mreg = isdn_getnum(p);
2922 if (mreg < 0 || mreg >= ISDN_MODEM_NUMREG)
2927 mval = isdn_getnum(p);
2928 if (mval < 0 || mval > 255)
2930 if (isdn_tty_check_ats(mreg, mval, info, m))
2932 m->mdmreg[mreg] = mval;
2935 /* Set/Clear a single bit */
2937 bitpos = isdn_getnum(p);
2938 if ((bitpos < 0) || (bitpos > 7))
2943 bval = isdn_getnum(p);
2944 if (bval < 0 || bval > 1)
2947 mval = m->mdmreg[mreg] | (1 << bitpos);
2949 mval = m->mdmreg[mreg] & ~(1 << bitpos);
2950 if (isdn_tty_check_ats(mreg, mval, info, m))
2952 m->mdmreg[mreg] = mval;
2956 isdn_tty_at_cout("\r\n", info);
2957 isdn_tty_at_cout((m->mdmreg[mreg] & (1 << bitpos)) ? "1" : "0",
2966 isdn_tty_show_profile(mreg, info);
2976 * Perform ATA command
2979 isdn_tty_cmd_ATA(modem_info *info)
2981 atemu *m = &info->emu;
2985 if (info->msr & UART_MSR_RI) {
2986 /* Accept incoming call */
2988 strcpy(info->last_num, dev->num[info->drv_index]);
2989 m->mdmreg[REG_RINGCNT] = 0;
2990 info->msr &= ~UART_MSR_RI;
2991 l2 = m->mdmreg[REG_L2PROT];
2992 #ifdef CONFIG_ISDN_AUDIO
2993 /* If more than one bit set in reg18, autoselect Layer2 */
2994 if ((m->mdmreg[REG_SI1] & m->mdmreg[REG_SI1I]) != m->mdmreg[REG_SI1]) {
2995 if (m->mdmreg[REG_SI1I] == 1) {
2996 if ((l2 != ISDN_PROTO_L2_MODEM) && (l2 != ISDN_PROTO_L2_FAX))
2997 l2 = ISDN_PROTO_L2_TRANS;
2999 l2 = ISDN_PROTO_L2_X75I;
3002 cmd.driver = info->isdn_driver;
3003 cmd.command = ISDN_CMD_SETL2;
3004 cmd.arg = info->isdn_channel + (l2 << 8);
3007 cmd.driver = info->isdn_driver;
3008 cmd.command = ISDN_CMD_SETL3;
3009 cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8);
3010 #ifdef CONFIG_ISDN_TTY_FAX
3011 if (l2 == ISDN_PROTO_L2_FAX) {
3012 cmd.parm.fax = info->fax;
3013 info->fax->direction = ISDN_TTY_FAX_CONN_IN;
3017 cmd.driver = info->isdn_driver;
3018 cmd.arg = info->isdn_channel;
3019 cmd.command = ISDN_CMD_ACCEPTD;
3021 info->emu.carrierwait = 0;
3023 isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1);
3025 isdn_tty_modem_result(RESULT_NO_ANSWER, info);
3028 #ifdef CONFIG_ISDN_AUDIO
3030 * Parse AT+F.. commands
3033 isdn_tty_cmd_PLUSF(char **p, modem_info *info)
3035 atemu *m = &info->emu;
3038 if (!strncmp(p[0], "CLASS", 5)) {
3043 sprintf(rs, "\r\n%d",
3044 (m->mdmreg[REG_SI1] & 1) ? 8 : 0);
3045 #ifdef CONFIG_ISDN_TTY_FAX
3046 if (TTY_IS_FCLASS2(info))
3047 sprintf(rs, "\r\n2");
3048 else if (TTY_IS_FCLASS1(info))
3049 sprintf(rs, "\r\n1");
3051 isdn_tty_at_cout(rs, info);
3058 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I;
3059 m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_TRANS;
3060 m->mdmreg[REG_SI1] = 4;
3062 m->mdmreg[REG_PSIZE] * 16;
3064 #ifdef CONFIG_ISDN_TTY_FAX
3067 if (!(dev->global_features &
3068 ISDN_FEATURE_L3_FCLASS1))
3070 m->mdmreg[REG_SI1] = 1;
3071 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_FAX;
3072 m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_FCLASS1;
3074 m->mdmreg[REG_PSIZE] * 16;
3078 if (!(dev->global_features &
3079 ISDN_FEATURE_L3_FCLASS2))
3081 m->mdmreg[REG_SI1] = 1;
3082 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_FAX;
3083 m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_FCLASS2;
3085 m->mdmreg[REG_PSIZE] * 16;
3090 /* L2 will change on dialout with si=1 */
3091 m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I;
3092 m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_TRANS;
3093 m->mdmreg[REG_SI1] = 5;
3094 info->xmit_size = VBUF;
3098 strcpy(rs, "\r\n0,");
3099 #ifdef CONFIG_ISDN_TTY_FAX
3100 if (dev->global_features &
3101 ISDN_FEATURE_L3_FCLASS1)
3103 if (dev->global_features &
3104 ISDN_FEATURE_L3_FCLASS2)
3108 isdn_tty_at_cout(rs, info);
3119 #ifdef CONFIG_ISDN_TTY_FAX
3120 return (isdn_tty_cmd_PLUSF_FAX(p, info));
3127 * Parse AT+V.. commands
3130 isdn_tty_cmd_PLUSV(char **p, modem_info *info)
3132 atemu *m = &info->emu;
3134 static char *vcmd[] =
3135 {"NH", "IP", "LS", "RX", "SD", "SM", "TX", "DD", NULL};
3143 if (!strncmp(vcmd[i], p[0], 2)) {
3151 /* AT+VNH - Auto hangup feature */
3155 isdn_tty_at_cout("\r\n1", info);
3165 isdn_tty_at_cout("\r\n1", info);
3176 /* AT+VIP - Reset all voice parameters */
3177 isdn_tty_modem_reset_vpar(m);
3180 /* AT+VLS - Select device, accept incoming call */
3184 sprintf(rs, "\r\n%d", m->vpar[0]);
3185 isdn_tty_at_cout(rs, info);
3200 isdn_tty_at_cout("\r\n0,2", info);
3211 /* AT+VRX - Start recording */
3214 if (info->online != 1) {
3215 isdn_tty_modem_result(RESULT_NO_ANSWER, info);
3218 info->dtmf_state = isdn_audio_dtmf_init(info->dtmf_state);
3219 if (!info->dtmf_state) {
3220 printk(KERN_WARNING "isdn_tty: Couldn't malloc dtmf state\n");
3223 info->silence_state = isdn_audio_silence_init(info->silence_state);
3224 if (!info->silence_state) {
3225 printk(KERN_WARNING "isdn_tty: Couldn't malloc silence state\n");
3228 if (m->vpar[3] < 5) {
3229 info->adpcmr = isdn_audio_adpcm_init(info->adpcmr, m->vpar[3]);
3230 if (!info->adpcmr) {
3231 printk(KERN_WARNING "isdn_tty: Couldn't malloc adpcm state\n");
3235 #ifdef ISDN_DEBUG_AT
3236 printk(KERN_DEBUG "AT: +VRX\n");
3239 isdn_tty_modem_result(RESULT_CONNECT, info);
3243 /* AT+VSD - Silence detection */
3247 sprintf(rs, "\r\n<%d>,<%d>",
3250 isdn_tty_at_cout(rs, info);
3254 if ((*p[0] >= '0') && (*p[0] <= '9')) {
3255 par1 = isdn_getnum(p);
3256 if ((par1 < 0) || (par1 > 31))
3261 par2 = isdn_getnum(p);
3262 if ((par2 < 0) || (par2 > 255))
3270 isdn_tty_at_cout("\r\n<0-31>,<0-255>",
3281 /* AT+VSM - Select compression */
3285 sprintf(rs, "\r\n<%d>,<%d><8000>",
3288 isdn_tty_at_cout(rs, info);
3298 par1 = isdn_getnum(p);
3299 if ((par1 < 2) || (par1 > 6))
3305 isdn_tty_at_cout("\r\n2;ADPCM;2;0;(8000)\r\n",
3307 isdn_tty_at_cout("3;ADPCM;3;0;(8000)\r\n",
3309 isdn_tty_at_cout("4;ADPCM;4;0;(8000)\r\n",
3311 isdn_tty_at_cout("5;ALAW;8;0;(8000)\r\n",
3313 isdn_tty_at_cout("6;ULAW;8;0;(8000)\r\n",
3325 /* AT+VTX - Start sending */
3328 if (info->online != 1) {
3329 isdn_tty_modem_result(RESULT_NO_ANSWER, info);
3332 info->dtmf_state = isdn_audio_dtmf_init(info->dtmf_state);
3333 if (!info->dtmf_state) {
3334 printk(KERN_WARNING "isdn_tty: Couldn't malloc dtmf state\n");
3337 if (m->vpar[3] < 5) {
3338 info->adpcms = isdn_audio_adpcm_init(info->adpcms, m->vpar[3]);
3339 if (!info->adpcms) {
3340 printk(KERN_WARNING "isdn_tty: Couldn't malloc adpcm state\n");
3344 #ifdef ISDN_DEBUG_AT
3345 printk(KERN_DEBUG "AT: +VTX\n");
3349 isdn_tty_modem_result(RESULT_CONNECT, info);
3353 /* AT+VDD - DTMF detection */
3357 sprintf(rs, "\r\n<%d>,<%d>",
3360 isdn_tty_at_cout(rs, info);
3364 if ((*p[0] >= '0') && (*p[0] <= '9')) {
3365 if (info->online != 1)
3367 par1 = isdn_getnum(p);
3368 if ((par1 < 0) || (par1 > 15))
3373 par2 = isdn_getnum(p);
3374 if ((par2 < 0) || (par2 > 255))
3378 cmd.driver = info->isdn_driver;
3379 cmd.command = ISDN_CMD_AUDIO;
3380 cmd.arg = info->isdn_channel + (ISDN_AUDIO_SETDD << 8);
3381 cmd.parm.num[0] = par1;
3382 cmd.parm.num[1] = par2;
3388 isdn_tty_at_cout("\r\n<0-15>,<0-255>",
3403 #endif /* CONFIG_ISDN_AUDIO */
3406 * Parse and perform an AT-command-line.
3409 isdn_tty_parse_at(modem_info *info)
3411 atemu *m = &info->emu;
3413 char ds[ISDN_MSNLEN];
3415 #ifdef ISDN_DEBUG_AT
3416 printk(KERN_DEBUG "AT: '%s'\n", m->mdmcmd);
3418 for (p = &m->mdmcmd[2]; *p;) {
3424 /* A - Accept incoming call */
3426 isdn_tty_cmd_ATA(info);
3430 if (info->msr & UART_MSR_DCD)
3432 if (info->msr & UART_MSR_RI) {
3433 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
3436 isdn_tty_getdial(++p, ds, sizeof ds);
3438 if (!strlen(m->msn))
3439 isdn_tty_modem_result(RESULT_NO_MSN_EAZ, info);
3440 else if (strlen(ds))
3441 isdn_tty_dial(ds, info, m);
3446 /* E - Turn Echo on/off */
3448 switch (isdn_getnum(&p)) {
3450 m->mdmreg[REG_ECHO] &= ~BIT_ECHO;
3453 m->mdmreg[REG_ECHO] |= BIT_ECHO;
3460 /* H - On/Off-hook */
3465 isdn_tty_on_hook(info);
3469 isdn_tty_off_hook();
3472 isdn_tty_on_hook(info);
3477 /* I - Information */
3479 isdn_tty_at_cout("\r\nLinux ISDN", info);
3487 isdn_tty_report(info);
3491 snprintf(ds, sizeof(ds), "\r\n%d", info->emu.charge);
3492 isdn_tty_at_cout(ds, info);
3497 #ifdef DUMMY_HAYES_AT
3500 /* only for be compilant with common scripts */
3509 if (info->msr & UART_MSR_DCD)
3510 /* if B-Channel is up */
3511 isdn_tty_modem_result((m->mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM) ? RESULT_CONNECT : RESULT_CONNECT64000, info);
3513 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
3516 /* Q - Turn Emulator messages on/off */
3518 switch (isdn_getnum(&p)) {
3520 m->mdmreg[REG_RESP] |= BIT_RESP;
3523 m->mdmreg[REG_RESP] &= ~BIT_RESP;
3530 /* S - Set/Get Register */
3532 if (isdn_tty_cmd_ATS(&p, info))
3536 /* V - Numeric or ASCII Emulator-messages */
3538 switch (isdn_getnum(&p)) {
3540 m->mdmreg[REG_RESP] |= BIT_RESPNUM;
3543 m->mdmreg[REG_RESP] &= ~BIT_RESPNUM;
3550 /* Z - Load Registers from Profile */
3552 if (info->msr & UART_MSR_DCD) {
3554 isdn_tty_on_hook(info);
3556 isdn_tty_modem_reset_regs(info, 1);
3561 #ifdef CONFIG_ISDN_AUDIO
3564 if (isdn_tty_cmd_PLUSF(&p, info))
3568 if ((!(m->mdmreg[REG_SI1] & 1)) ||
3569 (m->mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM))
3572 if (isdn_tty_cmd_PLUSV(&p, info))
3575 #endif /* CONFIG_ISDN_AUDIO */
3576 case 'S': /* SUSPEND */
3578 isdn_tty_get_msnstr(ds, &p);
3579 isdn_tty_suspend(ds, info, m);
3581 case 'R': /* RESUME */
3583 isdn_tty_get_msnstr(ds, &p);
3584 isdn_tty_resume(ds, info, m);
3586 case 'M': /* MESSAGE */
3588 isdn_tty_send_msg(info, m, p);
3596 if (isdn_tty_cmd_ATand(&p, info))
3603 #ifdef CONFIG_ISDN_AUDIO
3606 isdn_tty_modem_result(RESULT_OK, info);
3609 /* Need own toupper() because standard-toupper is not available
3612 #define my_toupper(c) (((c >= 'a') && (c <= 'z')) ? (c & 0xdf) : c)
3615 * Perform line-editing of AT-commands
3619 * count length of buffer
3620 * channel index to line (minor-device)
3623 isdn_tty_edit_at(const char *p, int count, modem_info *info)
3625 atemu *m = &info->emu;
3631 for (cnt = count; cnt > 0; p++, cnt--) {
3634 if (c == m->mdmreg[REG_CR] || c == m->mdmreg[REG_LF]) {
3635 /* Separator (CR or LF) */
3636 m->mdmcmd[m->mdmcmdl] = 0;
3637 if (m->mdmreg[REG_ECHO] & BIT_ECHO) {
3640 isdn_tty_at_cout(eb, info);
3642 if ((m->mdmcmdl >= 2) && (!(strncmp(m->mdmcmd, "AT", 2))))
3643 isdn_tty_parse_at(info);
3647 if (c == m->mdmreg[REG_BS] && m->mdmreg[REG_BS] < 128) {
3648 /* Backspace-Function */
3649 if ((m->mdmcmdl > 2) || (!m->mdmcmdl)) {
3652 if (m->mdmreg[REG_ECHO] & BIT_ECHO)
3653 isdn_tty_at_cout("\b", info);
3658 if (m->mdmreg[REG_ECHO] & BIT_ECHO) {
3661 isdn_tty_at_cout(eb, info);
3663 if (m->mdmcmdl < 255) {
3665 switch (m->mdmcmdl) {
3668 m->mdmcmd[m->mdmcmdl] = c;
3669 m->mdmcmd[++m->mdmcmdl] = 0;
3673 /* Fall through, check for 'A' */
3676 m->mdmcmd[m->mdmcmdl] = c;
3677 m->mdmcmd[++m->mdmcmdl] = 0;
3681 m->mdmcmd[m->mdmcmdl] = c;
3682 m->mdmcmd[++m->mdmcmdl] = 0;
3691 * Switch all modem-channels who are online and got a valid
3692 * escape-sequence 1.5 seconds ago, to command-mode.
3693 * This function is called every second via timer-interrupt from within
3694 * timer-dispatcher isdn_timer_function()
3697 isdn_tty_modem_escape(void)
3703 for (i = 0; i < ISDN_MAX_CHANNELS; i++)
3704 if (USG_MODEM(dev->usage[i]) && (midx = dev->m_idx[i]) >= 0) {
3705 modem_info *info = &dev->mdm.info[midx];
3708 if ((info->emu.pluscount == 3) &&
3710 info->emu.lastplus + PLUSWAIT2)) {
3711 info->emu.pluscount = 0;
3713 isdn_tty_modem_result(RESULT_OK, info);
3717 isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS, ton);
3721 * Put a RING-message to all modem-channels who have the RI-bit set.
3722 * This function is called every second via timer-interrupt from within
3723 * timer-dispatcher isdn_timer_function()
3726 isdn_tty_modem_ring(void)
3731 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
3732 modem_info *info = &dev->mdm.info[i];
3733 if (info->msr & UART_MSR_RI) {
3735 isdn_tty_modem_result(RESULT_RING, info);
3738 isdn_timer_ctrl(ISDN_TIMER_MODEMRING, ton);
3742 * For all online tty's, try sending data to
3746 isdn_tty_modem_xmit(void)
3751 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
3752 modem_info *info = &dev->mdm.info[i];
3755 isdn_tty_senddown(info);
3756 isdn_tty_tint(info);
3759 isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, ton);
3763 * Check all channels if we have a 'no carrier' timeout.
3764 * Timeout value is set by Register S7.
3767 isdn_tty_carrier_timeout(void)
3772 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
3773 modem_info *info = &dev->mdm.info[i];
3776 if (info->emu.carrierwait++ > info->emu.mdmreg[REG_WAITC]) {
3778 isdn_tty_modem_result(RESULT_NO_CARRIER, info);
3779 isdn_tty_modem_hup(info, 1);
3783 isdn_timer_ctrl(ISDN_TIMER_CARRIER, ton);