1 /* $Id: isdn_tty.c,v 1.1.2.3 2004/02/10 01:07:13 keil Exp $
3 * Linux ISDN subsystem, tty functions and AT-command emulator (linklevel).
5 * Copyright 1994-1999 by Fritz Elfert (fritz@isdn4linux.de)
6 * Copyright 1995,96 by Thinking Objects Software GmbH Wuerzburg
8 * This software may be used and distributed according to the terms
9 * of the GNU General Public License, incorporated herein by reference.
12 #undef ISDN_TTY_STAT_DEBUG
14 #include <linux/isdn.h>
15 #include <linux/delay.h>
16 #include "isdn_common.h"
18 #ifdef CONFIG_ISDN_AUDIO
19 #include "isdn_audio.h"
21 #define VBUFX (VBUF/16)
24 #define FIX_FILE_TRANSFER
25 #define DUMMY_HAYES_AT
29 static int isdn_tty_edit_at(const char *, int, modem_info
*);
30 static void isdn_tty_check_esc(const u_char
*, u_char
, int, int *, u_long
*);
31 static void isdn_tty_modem_reset_regs(modem_info
*, int);
32 static void isdn_tty_cmd_ATA(modem_info
*);
33 static void isdn_tty_flush_buffer(struct tty_struct
*);
34 static void isdn_tty_modem_result(int, modem_info
*);
35 #ifdef CONFIG_ISDN_AUDIO
36 static int isdn_tty_countDLE(unsigned char *, int);
39 /* Leave this unchanged unless you know what you do! */
40 #define MODEM_PARANOIA_CHECK
41 #define MODEM_DO_RESTART
43 static int bit2si
[8] =
44 {1, 5, 7, 7, 7, 7, 7, 7};
45 static int si2bit
[8] =
46 {4, 1, 4, 4, 4, 4, 4, 4};
48 char *isdn_tty_revision
= "$Revision: 1.1.2.3 $";
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
;
69 if ((tty
= info
->tty
)) {
70 if (info
->mcr
& UART_MCR_RTS
) {
72 #ifdef CONFIG_ISDN_AUDIO
73 + ISDN_AUDIO_SKB_DLECOUNT(skb
)
77 c
= tty_buffer_request_room(tty
, len
);
79 #ifdef CONFIG_ISDN_AUDIO
80 if (ISDN_AUDIO_SKB_DLECOUNT(skb
)) {
82 unsigned char *dp
= skb
->data
;
85 tty_insert_flip_char(tty
, DLE
, 0);
86 tty_insert_flip_char(tty
, *dp
++, 0);
92 tty_insert_flip_string(tty
, skb
->data
, len
- 1);
93 last
= skb
->data
[len
- 1];
94 #ifdef CONFIG_ISDN_AUDIO
97 if (info
->emu
.mdmreg
[REG_CPPP
] & BIT_CPPP
)
98 tty_insert_flip_char(tty
, last
, 0xFF);
100 tty_insert_flip_char(tty
, last
, TTY_NORMAL
);
101 tty_flip_buffer_push(tty
);
111 /* isdn_tty_readmodem() is called periodically from within timer-interrupt.
112 * It tries getting received data from the receive queue an stuff it into
113 * the tty's flip-buffer.
116 isdn_tty_readmodem(void)
122 struct tty_struct
*tty
;
125 for (i
= 0; i
< ISDN_MAX_CHANNELS
; i
++) {
126 if ((midx
= dev
->m_idx
[i
]) >= 0) {
127 info
= &dev
->mdm
.info
[midx
];
130 #ifdef CONFIG_ISDN_AUDIO
131 isdn_audio_eval_dtmf(info
);
132 if ((info
->vonline
& 1) && (info
->emu
.vpar
[1]))
133 isdn_audio_eval_silence(info
);
135 if ((tty
= info
->tty
)) {
136 if (info
->mcr
& UART_MCR_RTS
) {
137 /* CISCO AsyncPPP Hack */
138 if (!(info
->emu
.mdmreg
[REG_CPPP
] & BIT_CPPP
))
139 r
= isdn_readbchan_tty(info
->isdn_driver
, info
->isdn_channel
, tty
, 0);
141 r
= isdn_readbchan_tty(info
->isdn_driver
, info
->isdn_channel
, tty
, 1);
143 tty_flip_buffer_push(tty
);
157 isdn_timer_ctrl(ISDN_TIMER_MODEMREAD
, 0);
161 isdn_tty_rcv_skb(int i
, int di
, int channel
, struct sk_buff
*skb
)
165 #ifdef CONFIG_ISDN_AUDIO
170 if ((midx
= dev
->m_idx
[i
]) < 0) {
171 /* if midx is invalid, packet is not for tty */
174 info
= &dev
->mdm
.info
[midx
];
175 #ifdef CONFIG_ISDN_AUDIO
178 if ((info
->vonline
) && (!info
->emu
.vpar
[4]))
179 isdn_audio_calc_dtmf(info
, skb
->data
, skb
->len
, ifmt
);
180 if ((info
->vonline
& 1) && (info
->emu
.vpar
[1]))
181 isdn_audio_calc_silence(info
, skb
->data
, skb
->len
, ifmt
);
183 if ((info
->online
< 2)
184 #ifdef CONFIG_ISDN_AUDIO
185 && (!(info
->vonline
& 1))
188 /* If Modem not listening, drop data */
192 if (info
->emu
.mdmreg
[REG_T70
] & BIT_T70
) {
193 if (info
->emu
.mdmreg
[REG_T70
] & BIT_T70_EXT
) {
194 /* T.70 decoding: throw away the T.70 header (2 or 4 bytes) */
195 if (skb
->data
[0] == 3) /* pure data packet -> 4 byte headers */
198 if (skb
->data
[0] == 1) /* keepalive packet -> 2 byte hdr */
201 /* T.70 decoding: Simply throw away the T.70 header (4 bytes) */
202 if ((skb
->data
[0] == 1) && ((skb
->data
[1] == 0) || (skb
->data
[1] == 1)))
205 #ifdef CONFIG_ISDN_AUDIO
206 ISDN_AUDIO_SKB_DLECOUNT(skb
) = 0;
207 ISDN_AUDIO_SKB_LOCK(skb
) = 0;
208 if (info
->vonline
& 1) {
209 /* voice conversion/compression */
210 switch (info
->emu
.vpar
[3]) {
215 * Since compressed data takes less
216 * space, we can overwrite the buffer.
218 skb_trim(skb
, isdn_audio_xlaw2adpcm(info
->adpcmr
,
227 isdn_audio_ulaw2alaw(skb
->data
, skb
->len
);
232 isdn_audio_alaw2ulaw(skb
->data
, skb
->len
);
235 ISDN_AUDIO_SKB_DLECOUNT(skb
) =
236 isdn_tty_countDLE(skb
->data
, skb
->len
);
238 #ifdef CONFIG_ISDN_TTY_FAX
240 if (info
->faxonline
& 2) {
241 isdn_tty_fax_bitorder(info
, skb
);
242 ISDN_AUDIO_SKB_DLECOUNT(skb
) =
243 isdn_tty_countDLE(skb
->data
, skb
->len
);
248 /* Try to deliver directly via tty-buf if queue is empty */
249 spin_lock_irqsave(&info
->readlock
, flags
);
250 if (skb_queue_empty(&dev
->drv
[di
]->rpqueue
[channel
]))
251 if (isdn_tty_try_read(info
, skb
)) {
252 spin_unlock_irqrestore(&info
->readlock
, flags
);
255 /* Direct deliver failed or queue wasn't empty.
256 * Queue up for later dequeueing via timer-irq.
258 __skb_queue_tail(&dev
->drv
[di
]->rpqueue
[channel
], skb
);
259 dev
->drv
[di
]->rcvcount
[channel
] +=
261 #ifdef CONFIG_ISDN_AUDIO
262 + ISDN_AUDIO_SKB_DLECOUNT(skb
)
265 spin_unlock_irqrestore(&info
->readlock
, flags
);
266 /* Schedule dequeuing */
267 if ((dev
->modempoll
) && (info
->rcvsched
))
268 isdn_timer_ctrl(ISDN_TIMER_MODEMREAD
, 1);
273 isdn_tty_cleanup_xmit(modem_info
* info
)
275 skb_queue_purge(&info
->xmit_queue
);
276 #ifdef CONFIG_ISDN_AUDIO
277 skb_queue_purge(&info
->dtmf_queue
);
282 isdn_tty_tint(modem_info
* info
)
284 struct sk_buff
*skb
= skb_dequeue(&info
->xmit_queue
);
290 if ((slen
= isdn_writebuf_skb_stub(info
->isdn_driver
,
291 info
->isdn_channel
, 1, skb
)) == len
) {
292 struct tty_struct
*tty
= info
->tty
;
293 info
->send_outstanding
++;
294 info
->msr
&= ~UART_MSR_CTS
;
295 info
->lsr
&= ~UART_LSR_TEMT
;
300 /* Error: no channel, already shutdown, or wrong parameter */
304 skb_queue_head(&info
->xmit_queue
, skb
);
307 #ifdef CONFIG_ISDN_AUDIO
309 isdn_tty_countDLE(unsigned char *buf
, int len
)
319 /* This routine is called from within isdn_tty_write() to perform
320 * DLE-decoding when sending audio-data.
323 isdn_tty_handleDLEdown(modem_info
* info
, atemu
* m
, int len
)
325 unsigned char *p
= &info
->xmit_buf
[info
->xmit_count
];
335 memmove(p
, p
+ 1, len
- 1);
346 #ifdef ISDN_DEBUG_MODEM_VOICE
348 "DLEdown: got DLE-DC4, send DLE-ETX on ttyI%d\n",
351 isdn_tty_at_cout("\020\003", info
);
352 if (!info
->vonline
) {
353 #ifdef ISDN_DEBUG_MODEM_VOICE
355 "DLEdown: send VCON on ttyI%d\n",
358 isdn_tty_at_cout("\r\nVCON\r\n", info
);
365 memmove(p
, p
+ 1, len
- 1);
379 printk(KERN_WARNING
"isdn_tty: len<0 in DLEdown\n");
385 /* This routine is called from within isdn_tty_write() when receiving
386 * audio-data. It interrupts receiving, if an character other than
390 isdn_tty_end_vrx(const char *buf
, int c
)
396 if ((ch
!= 0x11) && (ch
!= 0x13))
403 static int voice_cf
[7] =
404 {0, 0, 4, 3, 2, 0, 0};
406 #endif /* CONFIG_ISDN_AUDIO */
408 /* isdn_tty_senddown() is called either directly from within isdn_tty_write()
409 * or via timer-interrupt from within isdn_tty_modem_xmit(). It pulls
410 * outgoing data from the tty's xmit-buffer, handles voice-decompression or
411 * T.70 if necessary, and finally queues it up for sending via isdn_tty_tint.
414 isdn_tty_senddown(modem_info
* info
)
418 #ifdef CONFIG_ISDN_AUDIO
423 #ifdef CONFIG_ISDN_AUDIO
424 if (info
->vonline
& 4) {
426 if (!info
->vonline
) {
427 #ifdef ISDN_DEBUG_MODEM_VOICE
429 "senddown: send VCON on ttyI%d\n",
432 isdn_tty_at_cout("\r\nVCON\r\n", info
);
436 if (!(buflen
= info
->xmit_count
))
438 if ((info
->emu
.mdmreg
[REG_CTS
] & BIT_CTS
) != 0)
439 info
->msr
&= ~UART_MSR_CTS
;
440 info
->lsr
&= ~UART_LSR_TEMT
;
441 /* info->xmit_count is modified here and in isdn_tty_write().
442 * So we return here if isdn_tty_write() is in the
445 atomic_inc(&info
->xmit_lock
);
446 if (!(atomic_dec_and_test(&info
->xmit_lock
)))
448 if (info
->isdn_driver
< 0) {
449 info
->xmit_count
= 0;
452 skb_res
= dev
->drv
[info
->isdn_driver
]->interface
->hl_hdrlen
+ 4;
453 #ifdef CONFIG_ISDN_AUDIO
454 if (info
->vonline
& 2)
455 audio_len
= buflen
* voice_cf
[info
->emu
.vpar
[3]];
458 skb
= dev_alloc_skb(skb_res
+ buflen
+ audio_len
);
460 skb
= dev_alloc_skb(skb_res
+ buflen
);
464 "isdn_tty: Out of memory in ttyI%d senddown\n",
468 skb_reserve(skb
, skb_res
);
469 memcpy(skb_put(skb
, buflen
), info
->xmit_buf
, buflen
);
470 info
->xmit_count
= 0;
471 #ifdef CONFIG_ISDN_AUDIO
472 if (info
->vonline
& 2) {
473 /* For now, ifmt is fixed to 1 (alaw), since this
474 * is used with ISDN everywhere in the world, except
475 * US, Canada and Japan.
476 * Later, when US-ISDN protocols are implemented,
477 * this setting will depend on the D-channel protocol.
481 /* voice conversion/decompression */
482 switch (info
->emu
.vpar
[3]) {
486 /* adpcm, compatible to ZyXel 1496 modem
487 * with ROM revision 6.01
489 audio_len
= isdn_audio_adpcm2xlaw(info
->adpcms
,
492 skb_put(skb
, audio_len
),
494 skb_pull(skb
, buflen
);
495 skb_trim(skb
, audio_len
);
500 isdn_audio_alaw2ulaw(skb
->data
,
506 isdn_audio_ulaw2alaw(skb
->data
,
511 #endif /* CONFIG_ISDN_AUDIO */
512 if (info
->emu
.mdmreg
[REG_T70
] & BIT_T70
) {
513 /* Add T.70 simplified header */
514 if (info
->emu
.mdmreg
[REG_T70
] & BIT_T70_EXT
)
515 memcpy(skb_push(skb
, 2), "\1\0", 2);
517 memcpy(skb_push(skb
, 4), "\1\0\1\0", 4);
519 skb_queue_tail(&info
->xmit_queue
, skb
);
522 /************************************************************
526 * mostly "stolen" from original Linux-serial.c and friends.
528 ************************************************************/
530 /* The next routine is called once from within timer-interrupt
531 * triggered within isdn_tty_modem_ncarrier(). It calls
532 * isdn_tty_modem_result() to stuff a "NO CARRIER" Message
533 * into the tty's buffer.
536 isdn_tty_modem_do_ncarrier(unsigned long data
)
538 modem_info
*info
= (modem_info
*) data
;
539 isdn_tty_modem_result(RESULT_NO_CARRIER
, info
);
542 /* Next routine is called, whenever the DTR-signal is raised.
543 * It checks the ncarrier-flag, and triggers the above routine
544 * when necessary. The ncarrier-flag is set, whenever DTR goes
548 isdn_tty_modem_ncarrier(modem_info
* info
)
550 if (info
->ncarrier
) {
551 info
->nc_timer
.expires
= jiffies
+ HZ
;
552 add_timer(&info
->nc_timer
);
557 * return the usage calculated by si and layer 2 protocol
560 isdn_calc_usage(int si
, int l2
)
562 int usg
= ISDN_USAGE_MODEM
;
564 #ifdef CONFIG_ISDN_AUDIO
567 case ISDN_PROTO_L2_MODEM
:
568 usg
= ISDN_USAGE_MODEM
;
570 #ifdef CONFIG_ISDN_TTY_FAX
571 case ISDN_PROTO_L2_FAX
:
572 usg
= ISDN_USAGE_FAX
;
575 case ISDN_PROTO_L2_TRANS
:
577 usg
= ISDN_USAGE_VOICE
;
585 /* isdn_tty_dial() performs dialing of a tty an the necessary
586 * setup of the lower levels before that.
589 isdn_tty_dial(char *n
, modem_info
* info
, atemu
* m
)
591 int usg
= ISDN_USAGE_MODEM
;
593 int l2
= m
->mdmreg
[REG_L2PROT
];
599 for (j
= 7; j
>= 0; j
--)
600 if (m
->mdmreg
[REG_SI1
] & (1 << j
)) {
604 usg
= isdn_calc_usage(si
, l2
);
605 #ifdef CONFIG_ISDN_AUDIO
607 (l2
!= ISDN_PROTO_L2_MODEM
)
608 #ifdef CONFIG_ISDN_TTY_FAX
609 && (l2
!= ISDN_PROTO_L2_FAX
)
612 l2
= ISDN_PROTO_L2_TRANS
;
613 usg
= ISDN_USAGE_VOICE
;
616 m
->mdmreg
[REG_SI1I
] = si2bit
[si
];
617 spin_lock_irqsave(&dev
->lock
, flags
);
618 i
= isdn_get_free_channel(usg
, l2
, m
->mdmreg
[REG_L3PROT
], -1, -1, m
->msn
);
620 spin_unlock_irqrestore(&dev
->lock
, flags
);
621 isdn_tty_modem_result(RESULT_NO_DIALTONE
, info
);
623 info
->isdn_driver
= dev
->drvmap
[i
];
624 info
->isdn_channel
= dev
->chanmap
[i
];
626 dev
->m_idx
[i
] = info
->line
;
627 dev
->usage
[i
] |= ISDN_USAGE_OUTGOING
;
629 strcpy(info
->last_num
, n
);
631 spin_unlock_irqrestore(&dev
->lock
, flags
);
632 cmd
.driver
= info
->isdn_driver
;
633 cmd
.arg
= info
->isdn_channel
;
634 cmd
.command
= ISDN_CMD_CLREAZ
;
636 strcpy(cmd
.parm
.num
, isdn_map_eaz2msn(m
->msn
, info
->isdn_driver
));
637 cmd
.driver
= info
->isdn_driver
;
638 cmd
.command
= ISDN_CMD_SETEAZ
;
640 cmd
.driver
= info
->isdn_driver
;
641 cmd
.command
= ISDN_CMD_SETL2
;
643 cmd
.arg
= info
->isdn_channel
+ (l2
<< 8);
645 cmd
.driver
= info
->isdn_driver
;
646 cmd
.command
= ISDN_CMD_SETL3
;
647 cmd
.arg
= info
->isdn_channel
+ (m
->mdmreg
[REG_L3PROT
] << 8);
648 #ifdef CONFIG_ISDN_TTY_FAX
649 if (l2
== ISDN_PROTO_L2_FAX
) {
650 cmd
.parm
.fax
= info
->fax
;
651 info
->fax
->direction
= ISDN_TTY_FAX_CONN_OUT
;
655 cmd
.driver
= info
->isdn_driver
;
656 cmd
.arg
= info
->isdn_channel
;
657 sprintf(cmd
.parm
.setup
.phone
, "%s", n
);
658 sprintf(cmd
.parm
.setup
.eazmsn
, "%s",
659 isdn_map_eaz2msn(m
->msn
, info
->isdn_driver
));
660 cmd
.parm
.setup
.si1
= si
;
661 cmd
.parm
.setup
.si2
= m
->mdmreg
[REG_SI2
];
662 cmd
.command
= ISDN_CMD_DIAL
;
664 info
->emu
.carrierwait
= 0;
665 strcpy(dev
->num
[i
], n
);
668 isdn_timer_ctrl(ISDN_TIMER_CARRIER
, 1);
672 /* isdn_tty_hangup() disassociates a tty from the real
673 * ISDN-line (hangup). The usage-status is cleared
674 * and some cleanup is done also.
677 isdn_tty_modem_hup(modem_info
* info
, int local
)
685 di
= info
->isdn_driver
;
686 ch
= info
->isdn_channel
;
687 if (di
< 0 || ch
< 0)
690 info
->isdn_driver
= -1;
691 info
->isdn_channel
= -1;
693 #ifdef ISDN_DEBUG_MODEM_HUP
694 printk(KERN_DEBUG
"Mhup ttyI%d\n", info
->line
);
697 isdn_tty_flush_buffer(info
->tty
);
699 info
->last_lhup
= local
;
701 isdn_tty_modem_result(RESULT_NO_CARRIER
, info
);
703 #ifdef CONFIG_ISDN_AUDIO
705 #ifdef CONFIG_ISDN_TTY_FAX
707 info
->fax
->phase
= ISDN_FAX_PHASE_IDLE
;
709 info
->emu
.vpar
[4] = 0;
710 info
->emu
.vpar
[5] = 8;
711 kfree(info
->dtmf_state
);
712 info
->dtmf_state
= NULL
;
713 kfree(info
->silence_state
);
714 info
->silence_state
= NULL
;
720 if ((info
->msr
& UART_MSR_RI
) &&
721 (info
->emu
.mdmreg
[REG_RUNG
] & BIT_RUNG
))
722 isdn_tty_modem_result(RESULT_RUNG
, info
);
723 info
->msr
&= ~(UART_MSR_DCD
| UART_MSR_RI
);
724 info
->lsr
|= UART_LSR_TEMT
;
728 cmd
.command
= ISDN_CMD_HANGUP
;
733 isdn_all_eaz(di
, ch
);
734 info
->emu
.mdmreg
[REG_RINGCNT
] = 0;
735 isdn_free_channel(di
, ch
, 0);
737 if (info
->drv_index
>= 0) {
738 dev
->m_idx
[info
->drv_index
] = -1;
739 info
->drv_index
= -1;
744 * Begin of a CAPI like interface, currently used only for
745 * supplementary service (CAPI 2.0 part III)
747 #include <linux/isdn/capicmd.h>
750 isdn_tty_capi_facility(capi_msg
*cm
) {
751 return(-1); /* dummy */
754 /* isdn_tty_suspend() tries to suspend the current tty connection
757 isdn_tty_suspend(char *id
, modem_info
* info
, atemu
* m
)
766 #ifdef ISDN_DEBUG_MODEM_SERVICES
767 printk(KERN_DEBUG
"Msusp ttyI%d\n", info
->line
);
770 if ((info
->isdn_driver
>= 0)) {
771 cmd
.parm
.cmsg
.Length
= l
+18;
772 cmd
.parm
.cmsg
.Command
= CAPI_FACILITY
;
773 cmd
.parm
.cmsg
.Subcommand
= CAPI_REQ
;
774 cmd
.parm
.cmsg
.adr
.Controller
= info
->isdn_driver
+ 1;
775 cmd
.parm
.cmsg
.para
[0] = 3; /* 16 bit 0x0003 suplementary service */
776 cmd
.parm
.cmsg
.para
[1] = 0;
777 cmd
.parm
.cmsg
.para
[2] = l
+ 3;
778 cmd
.parm
.cmsg
.para
[3] = 4; /* 16 bit 0x0004 Suspend */
779 cmd
.parm
.cmsg
.para
[4] = 0;
780 cmd
.parm
.cmsg
.para
[5] = l
;
781 strncpy(&cmd
.parm
.cmsg
.para
[6], id
, l
);
782 cmd
.command
= CAPI_PUT_MESSAGE
;
783 cmd
.driver
= info
->isdn_driver
;
784 cmd
.arg
= info
->isdn_channel
;
789 /* isdn_tty_resume() tries to resume a suspended call
790 * setup of the lower levels before that. unfortunatly here is no
791 * checking for compatibility of used protocols implemented by Q931
792 * It does the same things like isdn_tty_dial, the last command
793 * is different, may be we can merge it.
797 isdn_tty_resume(char *id
, modem_info
* info
, atemu
* m
)
799 int usg
= ISDN_USAGE_MODEM
;
801 int l2
= m
->mdmreg
[REG_L2PROT
];
809 for (j
= 7; j
>= 0; j
--)
810 if (m
->mdmreg
[REG_SI1
] & (1 << j
)) {
814 usg
= isdn_calc_usage(si
, l2
);
815 #ifdef CONFIG_ISDN_AUDIO
817 (l2
!= ISDN_PROTO_L2_MODEM
)
818 #ifdef CONFIG_ISDN_TTY_FAX
819 && (l2
!= ISDN_PROTO_L2_FAX
)
822 l2
= ISDN_PROTO_L2_TRANS
;
823 usg
= ISDN_USAGE_VOICE
;
826 m
->mdmreg
[REG_SI1I
] = si2bit
[si
];
827 spin_lock_irqsave(&dev
->lock
, flags
);
828 i
= isdn_get_free_channel(usg
, l2
, m
->mdmreg
[REG_L3PROT
], -1, -1, m
->msn
);
830 spin_unlock_irqrestore(&dev
->lock
, flags
);
831 isdn_tty_modem_result(RESULT_NO_DIALTONE
, info
);
833 info
->isdn_driver
= dev
->drvmap
[i
];
834 info
->isdn_channel
= dev
->chanmap
[i
];
836 dev
->m_idx
[i
] = info
->line
;
837 dev
->usage
[i
] |= ISDN_USAGE_OUTGOING
;
839 // strcpy(info->last_num, n);
841 spin_unlock_irqrestore(&dev
->lock
, flags
);
842 cmd
.driver
= info
->isdn_driver
;
843 cmd
.arg
= info
->isdn_channel
;
844 cmd
.command
= ISDN_CMD_CLREAZ
;
846 strcpy(cmd
.parm
.num
, isdn_map_eaz2msn(m
->msn
, info
->isdn_driver
));
847 cmd
.driver
= info
->isdn_driver
;
848 cmd
.command
= ISDN_CMD_SETEAZ
;
850 cmd
.driver
= info
->isdn_driver
;
851 cmd
.command
= ISDN_CMD_SETL2
;
853 cmd
.arg
= info
->isdn_channel
+ (l2
<< 8);
855 cmd
.driver
= info
->isdn_driver
;
856 cmd
.command
= ISDN_CMD_SETL3
;
857 cmd
.arg
= info
->isdn_channel
+ (m
->mdmreg
[REG_L3PROT
] << 8);
859 cmd
.driver
= info
->isdn_driver
;
860 cmd
.arg
= info
->isdn_channel
;
861 cmd
.parm
.cmsg
.Length
= l
+18;
862 cmd
.parm
.cmsg
.Command
= CAPI_FACILITY
;
863 cmd
.parm
.cmsg
.Subcommand
= CAPI_REQ
;
864 cmd
.parm
.cmsg
.adr
.Controller
= info
->isdn_driver
+ 1;
865 cmd
.parm
.cmsg
.para
[0] = 3; /* 16 bit 0x0003 suplementary service */
866 cmd
.parm
.cmsg
.para
[1] = 0;
867 cmd
.parm
.cmsg
.para
[2] = l
+3;
868 cmd
.parm
.cmsg
.para
[3] = 5; /* 16 bit 0x0005 Resume */
869 cmd
.parm
.cmsg
.para
[4] = 0;
870 cmd
.parm
.cmsg
.para
[5] = l
;
871 strncpy(&cmd
.parm
.cmsg
.para
[6], id
, l
);
872 cmd
.command
=CAPI_PUT_MESSAGE
;
874 // strcpy(dev->num[i], n);
877 isdn_timer_ctrl(ISDN_TIMER_CARRIER
, 1);
881 /* isdn_tty_send_msg() sends a message to a HL driver
882 * This is used for hybrid modem cards to send AT commands to it
886 isdn_tty_send_msg(modem_info
* info
, atemu
* m
, char *msg
)
888 int usg
= ISDN_USAGE_MODEM
;
890 int l2
= m
->mdmreg
[REG_L2PROT
];
899 isdn_tty_modem_result(RESULT_ERROR
, info
);
902 for (j
= 7; j
>= 0; j
--)
903 if (m
->mdmreg
[REG_SI1
] & (1 << j
)) {
907 usg
= isdn_calc_usage(si
, l2
);
908 #ifdef CONFIG_ISDN_AUDIO
910 (l2
!= ISDN_PROTO_L2_MODEM
)
911 #ifdef CONFIG_ISDN_TTY_FAX
912 && (l2
!= ISDN_PROTO_L2_FAX
)
915 l2
= ISDN_PROTO_L2_TRANS
;
916 usg
= ISDN_USAGE_VOICE
;
919 m
->mdmreg
[REG_SI1I
] = si2bit
[si
];
920 spin_lock_irqsave(&dev
->lock
, flags
);
921 i
= isdn_get_free_channel(usg
, l2
, m
->mdmreg
[REG_L3PROT
], -1, -1, m
->msn
);
923 spin_unlock_irqrestore(&dev
->lock
, flags
);
924 isdn_tty_modem_result(RESULT_NO_DIALTONE
, info
);
926 info
->isdn_driver
= dev
->drvmap
[i
];
927 info
->isdn_channel
= dev
->chanmap
[i
];
929 dev
->m_idx
[i
] = info
->line
;
930 dev
->usage
[i
] |= ISDN_USAGE_OUTGOING
;
933 spin_unlock_irqrestore(&dev
->lock
, flags
);
934 cmd
.driver
= info
->isdn_driver
;
935 cmd
.arg
= info
->isdn_channel
;
936 cmd
.command
= ISDN_CMD_CLREAZ
;
938 strcpy(cmd
.parm
.num
, isdn_map_eaz2msn(m
->msn
, info
->isdn_driver
));
939 cmd
.driver
= info
->isdn_driver
;
940 cmd
.command
= ISDN_CMD_SETEAZ
;
942 cmd
.driver
= info
->isdn_driver
;
943 cmd
.command
= ISDN_CMD_SETL2
;
945 cmd
.arg
= info
->isdn_channel
+ (l2
<< 8);
947 cmd
.driver
= info
->isdn_driver
;
948 cmd
.command
= ISDN_CMD_SETL3
;
949 cmd
.arg
= info
->isdn_channel
+ (m
->mdmreg
[REG_L3PROT
] << 8);
951 cmd
.driver
= info
->isdn_driver
;
952 cmd
.arg
= info
->isdn_channel
;
953 cmd
.parm
.cmsg
.Length
= l
+14;
954 cmd
.parm
.cmsg
.Command
= CAPI_MANUFACTURER
;
955 cmd
.parm
.cmsg
.Subcommand
= CAPI_REQ
;
956 cmd
.parm
.cmsg
.adr
.Controller
= info
->isdn_driver
+ 1;
957 cmd
.parm
.cmsg
.para
[0] = l
+1;
958 strncpy(&cmd
.parm
.cmsg
.para
[1], msg
, l
);
959 cmd
.parm
.cmsg
.para
[l
+1] = 0xd;
960 cmd
.command
=CAPI_PUT_MESSAGE
;
961 /* info->dialing = 1;
962 strcpy(dev->num[i], n);
970 isdn_tty_paranoia_check(modem_info
*info
, char *name
, const char *routine
)
972 #ifdef MODEM_PARANOIA_CHECK
974 printk(KERN_WARNING
"isdn_tty: null info_struct for %s in %s\n",
978 if (info
->magic
!= ISDN_ASYNC_MAGIC
) {
979 printk(KERN_WARNING
"isdn_tty: bad magic for modem struct %s in %s\n",
988 * This routine is called to set the UART divisor registers to match
989 * the specified baud rate for a serial port.
992 isdn_tty_change_speed(modem_info
* info
)
1000 if (!info
->tty
|| !info
->tty
->termios
)
1002 cflag
= info
->tty
->termios
->c_cflag
;
1004 quot
= i
= cflag
& CBAUD
;
1008 info
->tty
->termios
->c_cflag
&= ~CBAUDEX
;
1013 info
->mcr
|= UART_MCR_DTR
;
1014 isdn_tty_modem_ncarrier(info
);
1016 info
->mcr
&= ~UART_MCR_DTR
;
1017 if (info
->emu
.mdmreg
[REG_DTRHUP
] & BIT_DTRHUP
) {
1018 #ifdef ISDN_DEBUG_MODEM_HUP
1019 printk(KERN_DEBUG
"Mhup in changespeed\n");
1023 isdn_tty_modem_reset_regs(info
, 0);
1024 isdn_tty_modem_hup(info
, 1);
1028 /* byte size and parity */
1029 cval
= cflag
& (CSIZE
| CSTOPB
);
1032 cval
|= UART_LCR_PARITY
;
1033 if (!(cflag
& PARODD
))
1034 cval
|= UART_LCR_EPAR
;
1037 /* CTS flow control flag and modem status interrupts */
1038 if (cflag
& CRTSCTS
) {
1039 info
->flags
|= ISDN_ASYNC_CTS_FLOW
;
1041 info
->flags
&= ~ISDN_ASYNC_CTS_FLOW
;
1043 info
->flags
&= ~ISDN_ASYNC_CHECK_CD
;
1045 info
->flags
|= ISDN_ASYNC_CHECK_CD
;
1050 isdn_tty_startup(modem_info
* info
)
1052 if (info
->flags
& ISDN_ASYNC_INITIALIZED
)
1054 isdn_lock_drivers();
1055 #ifdef ISDN_DEBUG_MODEM_OPEN
1056 printk(KERN_DEBUG
"starting up ttyi%d ...\n", info
->line
);
1059 * Now, initialize the UART
1061 info
->mcr
= UART_MCR_DTR
| UART_MCR_RTS
| UART_MCR_OUT2
;
1063 clear_bit(TTY_IO_ERROR
, &info
->tty
->flags
);
1065 * and set the speed of the serial port
1067 isdn_tty_change_speed(info
);
1069 info
->flags
|= ISDN_ASYNC_INITIALIZED
;
1070 info
->msr
|= (UART_MSR_DSR
| UART_MSR_CTS
);
1071 info
->send_outstanding
= 0;
1076 * This routine will shutdown a serial port; interrupts are disabled, and
1077 * DTR is dropped if the hangup on close termio flag is on.
1080 isdn_tty_shutdown(modem_info
* info
)
1082 if (!(info
->flags
& ISDN_ASYNC_INITIALIZED
))
1084 #ifdef ISDN_DEBUG_MODEM_OPEN
1085 printk(KERN_DEBUG
"Shutting down isdnmodem port %d ....\n", info
->line
);
1087 isdn_unlock_drivers();
1088 info
->msr
&= ~UART_MSR_RI
;
1089 if (!info
->tty
|| (info
->tty
->termios
->c_cflag
& HUPCL
)) {
1090 info
->mcr
&= ~(UART_MCR_DTR
| UART_MCR_RTS
);
1091 if (info
->emu
.mdmreg
[REG_DTRHUP
] & BIT_DTRHUP
) {
1092 isdn_tty_modem_reset_regs(info
, 0);
1093 #ifdef ISDN_DEBUG_MODEM_HUP
1094 printk(KERN_DEBUG
"Mhup in isdn_tty_shutdown\n");
1096 isdn_tty_modem_hup(info
, 1);
1100 set_bit(TTY_IO_ERROR
, &info
->tty
->flags
);
1102 info
->flags
&= ~ISDN_ASYNC_INITIALIZED
;
1105 /* isdn_tty_write() is the main send-routine. It is called from the upper
1106 * levels within the kernel to perform sending data. Depending on the
1107 * online-flag it either directs output to the at-command-interpreter or
1108 * to the lower level. Additional tasks done here:
1109 * - If online, check for escape-sequence (+++)
1110 * - If sending audio-data, call isdn_tty_DLEdown() to parse DLE-codes.
1111 * - If receiving audio-data, call isdn_tty_end_vrx() to abort if needed.
1112 * - If dialing, abort dial.
1115 isdn_tty_write(struct tty_struct
*tty
, const u_char
* buf
, int count
)
1119 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1120 atemu
*m
= &info
->emu
;
1122 if (isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_write"))
1124 /* See isdn_tty_senddown() */
1125 atomic_inc(&info
->xmit_lock
);
1128 if (c
> info
->xmit_size
- info
->xmit_count
)
1129 c
= info
->xmit_size
- info
->xmit_count
;
1130 if (info
->isdn_driver
>= 0 && c
> dev
->drv
[info
->isdn_driver
]->maxbufsize
)
1131 c
= dev
->drv
[info
->isdn_driver
]->maxbufsize
;
1134 if ((info
->online
> 1)
1135 #ifdef CONFIG_ISDN_AUDIO
1136 || (info
->vonline
& 3)
1139 #ifdef CONFIG_ISDN_AUDIO
1142 isdn_tty_check_esc(buf
, m
->mdmreg
[REG_ESC
], c
,
1145 memcpy(&(info
->xmit_buf
[info
->xmit_count
]), buf
, c
);
1146 #ifdef CONFIG_ISDN_AUDIO
1147 if (info
->vonline
) {
1148 int cc
= isdn_tty_handleDLEdown(info
, m
, c
);
1149 if (info
->vonline
& 2) {
1151 /* If DLE decoding results in zero-transmit, but
1152 * c originally was non-zero, do a wakeup.
1155 info
->msr
|= UART_MSR_CTS
;
1156 info
->lsr
|= UART_LSR_TEMT
;
1158 info
->xmit_count
+= cc
;
1160 if ((info
->vonline
& 3) == 1) {
1161 /* Do NOT handle Ctrl-Q or Ctrl-S
1162 * when in full-duplex audio mode.
1164 if (isdn_tty_end_vrx(buf
, c
)) {
1165 info
->vonline
&= ~1;
1166 #ifdef ISDN_DEBUG_MODEM_VOICE
1168 "got !^Q/^S, send DLE-ETX,VCON on ttyI%d\n",
1171 isdn_tty_at_cout("\020\003\r\nVCON\r\n", info
);
1175 if (TTY_IS_FCLASS1(info
)) {
1176 int cc
= isdn_tty_handleDLEdown(info
, m
, c
);
1178 if (info
->vonline
& 4) { /* ETX seen */
1181 c
.command
= ISDN_CMD_FAXCMD
;
1182 c
.driver
= info
->isdn_driver
;
1183 c
.arg
= info
->isdn_channel
;
1184 c
.parm
.aux
.cmd
= ISDN_FAX_CLASS1_CTRL
;
1185 c
.parm
.aux
.subcmd
= ETX
;
1189 #ifdef ISDN_DEBUG_MODEM_VOICE
1190 printk(KERN_DEBUG
"fax dle cc/c %d/%d\n", cc
, c
);
1192 info
->xmit_count
+= cc
;
1195 info
->xmit_count
+= c
;
1197 info
->msr
|= UART_MSR_CTS
;
1198 info
->lsr
|= UART_LSR_TEMT
;
1199 if (info
->dialing
) {
1201 #ifdef ISDN_DEBUG_MODEM_HUP
1202 printk(KERN_DEBUG
"Mhup in isdn_tty_write\n");
1204 isdn_tty_modem_result(RESULT_NO_CARRIER
, info
);
1205 isdn_tty_modem_hup(info
, 1);
1207 c
= isdn_tty_edit_at(buf
, c
, info
);
1213 atomic_dec(&info
->xmit_lock
);
1214 if ((info
->xmit_count
) || !skb_queue_empty(&info
->xmit_queue
)) {
1215 if (m
->mdmreg
[REG_DXMT
] & BIT_DXMT
) {
1216 isdn_tty_senddown(info
);
1217 isdn_tty_tint(info
);
1219 isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT
, 1);
1225 isdn_tty_write_room(struct tty_struct
*tty
)
1227 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1230 if (isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_write_room"))
1233 return info
->xmit_size
;
1234 ret
= info
->xmit_size
- info
->xmit_count
;
1235 return (ret
< 0) ? 0 : ret
;
1239 isdn_tty_chars_in_buffer(struct tty_struct
*tty
)
1241 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1243 if (isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_chars_in_buffer"))
1247 return (info
->xmit_count
);
1251 isdn_tty_flush_buffer(struct tty_struct
*tty
)
1258 info
= (modem_info
*) tty
->driver_data
;
1259 if (isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_flush_buffer")) {
1262 isdn_tty_cleanup_xmit(info
);
1263 info
->xmit_count
= 0;
1268 isdn_tty_flush_chars(struct tty_struct
*tty
)
1270 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1272 if (isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_flush_chars"))
1274 if ((info
->xmit_count
) || !skb_queue_empty(&info
->xmit_queue
))
1275 isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT
, 1);
1279 * ------------------------------------------------------------
1280 * isdn_tty_throttle()
1282 * This routine is called by the upper-layer tty layer to signal that
1283 * incoming characters should be throttled.
1284 * ------------------------------------------------------------
1287 isdn_tty_throttle(struct tty_struct
*tty
)
1289 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1291 if (isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_throttle"))
1294 info
->x_char
= STOP_CHAR(tty
);
1295 info
->mcr
&= ~UART_MCR_RTS
;
1299 isdn_tty_unthrottle(struct tty_struct
*tty
)
1301 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1303 if (isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_unthrottle"))
1309 info
->x_char
= START_CHAR(tty
);
1311 info
->mcr
|= UART_MCR_RTS
;
1315 * ------------------------------------------------------------
1316 * isdn_tty_ioctl() and friends
1317 * ------------------------------------------------------------
1321 * isdn_tty_get_lsr_info - get line status register info
1323 * Purpose: Let user call ioctl() to get info when the UART physically
1324 * is emptied. On bus types like RS485, the transmitter must
1325 * release the bus after transmitting. This must be done when
1326 * the transmit shift register is empty, not be done when the
1327 * transmit holding register is empty. This functionality
1328 * allows RS485 driver to be written in user space.
1331 isdn_tty_get_lsr_info(modem_info
* info
, uint __user
* value
)
1337 result
= ((status
& UART_LSR_TEMT
) ? TIOCSER_TEMT
: 0);
1338 return put_user(result
, value
);
1343 isdn_tty_tiocmget(struct tty_struct
*tty
, struct file
*file
)
1345 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1346 u_char control
, status
;
1348 if (isdn_tty_paranoia_check(info
, tty
->name
, __FUNCTION__
))
1350 if (tty
->flags
& (1 << TTY_IO_ERROR
))
1353 #ifdef ISDN_DEBUG_MODEM_IOCTL
1354 printk(KERN_DEBUG
"ttyI%d ioctl TIOCMGET\n", info
->line
);
1357 control
= info
->mcr
;
1359 return ((control
& UART_MCR_RTS
) ? TIOCM_RTS
: 0)
1360 | ((control
& UART_MCR_DTR
) ? TIOCM_DTR
: 0)
1361 | ((status
& UART_MSR_DCD
) ? TIOCM_CAR
: 0)
1362 | ((status
& UART_MSR_RI
) ? TIOCM_RNG
: 0)
1363 | ((status
& UART_MSR_DSR
) ? TIOCM_DSR
: 0)
1364 | ((status
& UART_MSR_CTS
) ? TIOCM_CTS
: 0);
1368 isdn_tty_tiocmset(struct tty_struct
*tty
, struct file
*file
,
1369 unsigned int set
, unsigned int clear
)
1371 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1373 if (isdn_tty_paranoia_check(info
, tty
->name
, __FUNCTION__
))
1375 if (tty
->flags
& (1 << TTY_IO_ERROR
))
1378 #ifdef ISDN_DEBUG_MODEM_IOCTL
1379 printk(KERN_DEBUG
"ttyI%d ioctl TIOCMxxx: %x %x\n", info
->line
, set
, clear
);
1382 if (set
& TIOCM_RTS
)
1383 info
->mcr
|= UART_MCR_RTS
;
1384 if (set
& TIOCM_DTR
) {
1385 info
->mcr
|= UART_MCR_DTR
;
1386 isdn_tty_modem_ncarrier(info
);
1389 if (clear
& TIOCM_RTS
)
1390 info
->mcr
&= ~UART_MCR_RTS
;
1391 if (clear
& TIOCM_DTR
) {
1392 info
->mcr
&= ~UART_MCR_DTR
;
1393 if (info
->emu
.mdmreg
[REG_DTRHUP
] & BIT_DTRHUP
) {
1394 isdn_tty_modem_reset_regs(info
, 0);
1395 #ifdef ISDN_DEBUG_MODEM_HUP
1396 printk(KERN_DEBUG
"Mhup in TIOCMSET\n");
1400 isdn_tty_modem_hup(info
, 1);
1407 isdn_tty_ioctl(struct tty_struct
*tty
, struct file
*file
,
1408 uint cmd
, ulong arg
)
1410 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1413 if (isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_ioctl"))
1415 if (tty
->flags
& (1 << TTY_IO_ERROR
))
1418 case TCSBRK
: /* SVID version: non-zero arg --> no break */
1419 #ifdef ISDN_DEBUG_MODEM_IOCTL
1420 printk(KERN_DEBUG
"ttyI%d ioctl TCSBRK\n", info
->line
);
1422 retval
= tty_check_change(tty
);
1425 tty_wait_until_sent(tty
, 0);
1427 case TCSBRKP
: /* support for POSIX tcsendbreak() */
1428 #ifdef ISDN_DEBUG_MODEM_IOCTL
1429 printk(KERN_DEBUG
"ttyI%d ioctl TCSBRKP\n", info
->line
);
1431 retval
= tty_check_change(tty
);
1434 tty_wait_until_sent(tty
, 0);
1437 #ifdef ISDN_DEBUG_MODEM_IOCTL
1438 printk(KERN_DEBUG
"ttyI%d ioctl TIOCGSOFTCAR\n", info
->line
);
1440 return put_user(C_CLOCAL(tty
) ? 1 : 0, (ulong __user
*) arg
);
1442 #ifdef ISDN_DEBUG_MODEM_IOCTL
1443 printk(KERN_DEBUG
"ttyI%d ioctl TIOCSSOFTCAR\n", info
->line
);
1445 if (get_user(arg
, (ulong __user
*) arg
))
1447 tty
->termios
->c_cflag
=
1448 ((tty
->termios
->c_cflag
& ~CLOCAL
) |
1449 (arg
? CLOCAL
: 0));
1451 case TIOCSERGETLSR
: /* Get line status register */
1452 #ifdef ISDN_DEBUG_MODEM_IOCTL
1453 printk(KERN_DEBUG
"ttyI%d ioctl TIOCSERGETLSR\n", info
->line
);
1455 return isdn_tty_get_lsr_info(info
, (uint __user
*) arg
);
1457 #ifdef ISDN_DEBUG_MODEM_IOCTL
1458 printk(KERN_DEBUG
"UNKNOWN ioctl 0x%08x on ttyi%d\n", cmd
, info
->line
);
1460 return -ENOIOCTLCMD
;
1466 isdn_tty_set_termios(struct tty_struct
*tty
, struct ktermios
*old_termios
)
1468 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1471 isdn_tty_change_speed(info
);
1473 if (tty
->termios
->c_cflag
== old_termios
->c_cflag
)
1475 isdn_tty_change_speed(info
);
1476 if ((old_termios
->c_cflag
& CRTSCTS
) &&
1477 !(tty
->termios
->c_cflag
& CRTSCTS
)) {
1478 tty
->hw_stopped
= 0;
1484 * ------------------------------------------------------------
1485 * isdn_tty_open() and friends
1486 * ------------------------------------------------------------
1489 isdn_tty_block_til_ready(struct tty_struct
*tty
, struct file
*filp
, modem_info
* info
)
1491 DECLARE_WAITQUEUE(wait
, NULL
);
1496 * If the device is in the middle of being closed, then block
1497 * until it's done, and then try again.
1499 if (tty_hung_up_p(filp
) ||
1500 (info
->flags
& ISDN_ASYNC_CLOSING
)) {
1501 if (info
->flags
& ISDN_ASYNC_CLOSING
)
1502 interruptible_sleep_on(&info
->close_wait
);
1503 #ifdef MODEM_DO_RESTART
1504 if (info
->flags
& ISDN_ASYNC_HUP_NOTIFY
)
1507 return -ERESTARTSYS
;
1513 * If non-blocking mode is set, then make the check up front
1516 if ((filp
->f_flags
& O_NONBLOCK
) ||
1517 (tty
->flags
& (1 << TTY_IO_ERROR
))) {
1518 if (info
->flags
& ISDN_ASYNC_CALLOUT_ACTIVE
)
1520 info
->flags
|= ISDN_ASYNC_NORMAL_ACTIVE
;
1523 if (info
->flags
& ISDN_ASYNC_CALLOUT_ACTIVE
) {
1524 if (info
->normal_termios
.c_cflag
& CLOCAL
)
1527 if (tty
->termios
->c_cflag
& CLOCAL
)
1531 * Block waiting for the carrier detect and the line to become
1532 * free (i.e., not in use by the callout). While we are in
1533 * this loop, info->count is dropped by one, so that
1534 * isdn_tty_close() knows when to free things. We restore it upon
1535 * exit, either normal or abnormal.
1538 add_wait_queue(&info
->open_wait
, &wait
);
1539 #ifdef ISDN_DEBUG_MODEM_OPEN
1540 printk(KERN_DEBUG
"isdn_tty_block_til_ready before block: ttyi%d, count = %d\n",
1541 info
->line
, info
->count
);
1543 if (!(tty_hung_up_p(filp
)))
1545 info
->blocked_open
++;
1547 set_current_state(TASK_INTERRUPTIBLE
);
1548 if (tty_hung_up_p(filp
) ||
1549 !(info
->flags
& ISDN_ASYNC_INITIALIZED
)) {
1550 #ifdef MODEM_DO_RESTART
1551 if (info
->flags
& ISDN_ASYNC_HUP_NOTIFY
)
1554 retval
= -ERESTARTSYS
;
1560 if (!(info
->flags
& ISDN_ASYNC_CALLOUT_ACTIVE
) &&
1561 !(info
->flags
& ISDN_ASYNC_CLOSING
) &&
1562 (do_clocal
|| (info
->msr
& UART_MSR_DCD
))) {
1565 if (signal_pending(current
)) {
1566 retval
= -ERESTARTSYS
;
1569 #ifdef ISDN_DEBUG_MODEM_OPEN
1570 printk(KERN_DEBUG
"isdn_tty_block_til_ready blocking: ttyi%d, count = %d\n",
1571 info
->line
, info
->count
);
1575 current
->state
= TASK_RUNNING
;
1576 remove_wait_queue(&info
->open_wait
, &wait
);
1577 if (!tty_hung_up_p(filp
))
1579 info
->blocked_open
--;
1580 #ifdef ISDN_DEBUG_MODEM_OPEN
1581 printk(KERN_DEBUG
"isdn_tty_block_til_ready after blocking: ttyi%d, count = %d\n",
1582 info
->line
, info
->count
);
1586 info
->flags
|= ISDN_ASYNC_NORMAL_ACTIVE
;
1591 * This routine is called whenever a serial port is opened. It
1592 * enables interrupts for a serial port, linking in its async structure into
1593 * the IRQ chain. It also performs the serial-specific
1594 * initialization for the tty structure.
1597 isdn_tty_open(struct tty_struct
*tty
, struct file
*filp
)
1603 if (line
< 0 || line
> ISDN_MAX_CHANNELS
)
1605 info
= &dev
->mdm
.info
[line
];
1606 if (isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_open"))
1608 if (!try_module_get(info
->owner
)) {
1609 printk(KERN_WARNING
"%s: cannot reserve module\n", __FUNCTION__
);
1612 #ifdef ISDN_DEBUG_MODEM_OPEN
1613 printk(KERN_DEBUG
"isdn_tty_open %s, count = %d\n", tty
->name
,
1617 tty
->driver_data
= info
;
1620 * Start up serial port
1622 retval
= isdn_tty_startup(info
);
1624 #ifdef ISDN_DEBUG_MODEM_OPEN
1625 printk(KERN_DEBUG
"isdn_tty_open return after startup\n");
1627 module_put(info
->owner
);
1630 retval
= isdn_tty_block_til_ready(tty
, filp
, info
);
1632 #ifdef ISDN_DEBUG_MODEM_OPEN
1633 printk(KERN_DEBUG
"isdn_tty_open return after isdn_tty_block_til_ready \n");
1635 module_put(info
->owner
);
1638 #ifdef ISDN_DEBUG_MODEM_OPEN
1639 printk(KERN_DEBUG
"isdn_tty_open ttyi%d successful...\n", info
->line
);
1642 #ifdef ISDN_DEBUG_MODEM_OPEN
1643 printk(KERN_DEBUG
"isdn_tty_open normal exit\n");
1649 isdn_tty_close(struct tty_struct
*tty
, struct file
*filp
)
1651 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1654 if (!info
|| isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_close"))
1656 if (tty_hung_up_p(filp
)) {
1657 #ifdef ISDN_DEBUG_MODEM_OPEN
1658 printk(KERN_DEBUG
"isdn_tty_close return after tty_hung_up_p\n");
1662 if ((tty
->count
== 1) && (info
->count
!= 1)) {
1664 * Uh, oh. tty->count is 1, which means that the tty
1665 * structure will be freed. Info->count should always
1666 * be one in these conditions. If it's greater than
1667 * one, we've got real problems, since it means the
1668 * serial port won't be shutdown.
1670 printk(KERN_ERR
"isdn_tty_close: bad port count; tty->count is 1, "
1671 "info->count is %d\n", info
->count
);
1674 if (--info
->count
< 0) {
1675 printk(KERN_ERR
"isdn_tty_close: bad port count for ttyi%d: %d\n",
1676 info
->line
, info
->count
);
1680 #ifdef ISDN_DEBUG_MODEM_OPEN
1681 printk(KERN_DEBUG
"isdn_tty_close after info->count != 0\n");
1683 module_put(info
->owner
);
1686 info
->flags
|= ISDN_ASYNC_CLOSING
;
1688 * Save the termios structure, since this port may have
1689 * separate termios for callout and dialin.
1691 if (info
->flags
& ISDN_ASYNC_NORMAL_ACTIVE
)
1692 info
->normal_termios
= *tty
->termios
;
1693 if (info
->flags
& ISDN_ASYNC_CALLOUT_ACTIVE
)
1694 info
->callout_termios
= *tty
->termios
;
1698 * At this point we stop accepting input. To do this, we
1699 * disable the receive line status interrupts, and tell the
1700 * interrupt driver to stop checking the data ready bit in the
1701 * line status register.
1703 if (info
->flags
& ISDN_ASYNC_INITIALIZED
) {
1704 tty_wait_until_sent(tty
, 3000); /* 30 seconds timeout */
1706 * Before we drop DTR, make sure the UART transmitter
1707 * has completely drained; this is especially
1708 * important if there is a transmit FIFO!
1710 timeout
= jiffies
+ HZ
;
1711 while (!(info
->lsr
& UART_LSR_TEMT
)) {
1712 schedule_timeout_interruptible(20);
1713 if (time_after(jiffies
,timeout
))
1718 isdn_tty_shutdown(info
);
1720 if (tty
->driver
->flush_buffer
)
1721 tty
->driver
->flush_buffer(tty
);
1722 tty_ldisc_flush(tty
);
1726 module_put(info
->owner
);
1727 if (info
->blocked_open
) {
1728 msleep_interruptible(500);
1729 wake_up_interruptible(&info
->open_wait
);
1731 info
->flags
&= ~(ISDN_ASYNC_NORMAL_ACTIVE
| ISDN_ASYNC_CLOSING
);
1732 wake_up_interruptible(&info
->close_wait
);
1733 #ifdef ISDN_DEBUG_MODEM_OPEN
1734 printk(KERN_DEBUG
"isdn_tty_close normal exit\n");
1739 * isdn_tty_hangup() --- called by tty_hangup() when a hangup is signaled.
1742 isdn_tty_hangup(struct tty_struct
*tty
)
1744 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1746 if (isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_hangup"))
1748 isdn_tty_shutdown(info
);
1750 info
->flags
&= ~(ISDN_ASYNC_NORMAL_ACTIVE
| ISDN_ASYNC_CALLOUT_ACTIVE
);
1752 wake_up_interruptible(&info
->open_wait
);
1755 /* This routine initializes all emulator-data.
1758 isdn_tty_reset_profile(atemu
* m
)
1771 m
->profile
[11] = 70;
1772 m
->profile
[12] = 0x45;
1774 m
->profile
[14] = ISDN_PROTO_L2_X75I
;
1775 m
->profile
[15] = ISDN_PROTO_L3_TRANS
;
1776 m
->profile
[16] = ISDN_SERIAL_XMIT_SIZE
/ 16;
1777 m
->profile
[17] = ISDN_MODEM_WINSIZE
;
1786 #ifdef CONFIG_ISDN_AUDIO
1788 isdn_tty_modem_reset_vpar(atemu
* m
)
1790 m
->vpar
[0] = 2; /* Voice-device (2 = phone line) */
1791 m
->vpar
[1] = 0; /* Silence detection level (0 = none ) */
1792 m
->vpar
[2] = 70; /* Silence interval (7 sec. ) */
1793 m
->vpar
[3] = 2; /* Compression type (1 = ADPCM-2 ) */
1794 m
->vpar
[4] = 0; /* DTMF detection level (0 = softcode ) */
1795 m
->vpar
[5] = 8; /* DTMF interval (8 * 5 ms. ) */
1799 #ifdef CONFIG_ISDN_TTY_FAX
1801 isdn_tty_modem_reset_faxpar(modem_info
* info
)
1803 T30_s
*f
= info
->fax
;
1806 f
->phase
= ISDN_FAX_PHASE_IDLE
;
1808 f
->resolution
= 1; /* fine */
1809 f
->rate
= 5; /* 14400 bit/s */
1816 memset(&f
->id
[0], 32, FAXIDLEN
- 1);
1817 f
->id
[FAXIDLEN
- 1] = 0;
1828 memset(&f
->pollid
[0], 32, FAXIDLEN
- 1);
1829 f
->pollid
[FAXIDLEN
- 1] = 0;
1834 isdn_tty_modem_reset_regs(modem_info
* info
, int force
)
1836 atemu
*m
= &info
->emu
;
1837 if ((m
->mdmreg
[REG_DTRR
] & BIT_DTRR
) || force
) {
1838 memcpy(m
->mdmreg
, m
->profile
, ISDN_MODEM_NUMREG
);
1839 memcpy(m
->msn
, m
->pmsn
, ISDN_MSNLEN
);
1840 memcpy(m
->lmsn
, m
->plmsn
, ISDN_LMSNLEN
);
1841 info
->xmit_size
= m
->mdmreg
[REG_PSIZE
] * 16;
1843 #ifdef CONFIG_ISDN_AUDIO
1844 isdn_tty_modem_reset_vpar(m
);
1846 #ifdef CONFIG_ISDN_TTY_FAX
1847 isdn_tty_modem_reset_faxpar(info
);
1853 modem_write_profile(atemu
* m
)
1855 memcpy(m
->profile
, m
->mdmreg
, ISDN_MODEM_NUMREG
);
1856 memcpy(m
->pmsn
, m
->msn
, ISDN_MSNLEN
);
1857 memcpy(m
->plmsn
, m
->lmsn
, ISDN_LMSNLEN
);
1859 send_sig(SIGIO
, dev
->profd
, 1);
1862 static const struct tty_operations modem_ops
= {
1863 .open
= isdn_tty_open
,
1864 .close
= isdn_tty_close
,
1865 .write
= isdn_tty_write
,
1866 .flush_chars
= isdn_tty_flush_chars
,
1867 .write_room
= isdn_tty_write_room
,
1868 .chars_in_buffer
= isdn_tty_chars_in_buffer
,
1869 .flush_buffer
= isdn_tty_flush_buffer
,
1870 .ioctl
= isdn_tty_ioctl
,
1871 .throttle
= isdn_tty_throttle
,
1872 .unthrottle
= isdn_tty_unthrottle
,
1873 .set_termios
= isdn_tty_set_termios
,
1874 .hangup
= isdn_tty_hangup
,
1875 .tiocmget
= isdn_tty_tiocmget
,
1876 .tiocmset
= isdn_tty_tiocmset
,
1880 isdn_tty_modem_init(void)
1887 m
->tty_modem
= alloc_tty_driver(ISDN_MAX_CHANNELS
);
1890 m
->tty_modem
->name
= "ttyI";
1891 m
->tty_modem
->major
= ISDN_TTY_MAJOR
;
1892 m
->tty_modem
->minor_start
= 0;
1893 m
->tty_modem
->type
= TTY_DRIVER_TYPE_SERIAL
;
1894 m
->tty_modem
->subtype
= SERIAL_TYPE_NORMAL
;
1895 m
->tty_modem
->init_termios
= tty_std_termios
;
1896 m
->tty_modem
->init_termios
.c_cflag
= B9600
| CS8
| CREAD
| HUPCL
| CLOCAL
;
1897 m
->tty_modem
->flags
= TTY_DRIVER_REAL_RAW
| TTY_DRIVER_DYNAMIC_DEV
;
1898 m
->tty_modem
->driver_name
= "isdn_tty";
1899 tty_set_operations(m
->tty_modem
, &modem_ops
);
1900 retval
= tty_register_driver(m
->tty_modem
);
1902 printk(KERN_WARNING
"isdn_tty: Couldn't register modem-device\n");
1905 for (i
= 0; i
< ISDN_MAX_CHANNELS
; i
++) {
1907 #ifdef CONFIG_ISDN_TTY_FAX
1908 if (!(info
->fax
= kmalloc(sizeof(T30_s
), GFP_KERNEL
))) {
1909 printk(KERN_ERR
"Could not allocate fax t30-buffer\n");
1911 goto err_unregister
;
1915 info
->owner
= THIS_MODULE
;
1917 spin_lock_init(&info
->readlock
);
1918 init_MUTEX(&info
->write_sem
);
1919 sprintf(info
->last_cause
, "0000");
1920 sprintf(info
->last_num
, "none");
1922 info
->last_lhup
= 1;
1925 isdn_tty_reset_profile(&info
->emu
);
1926 isdn_tty_modem_reset_regs(info
, 1);
1927 info
->magic
= ISDN_ASYNC_MAGIC
;
1932 info
->blocked_open
= 0;
1933 init_waitqueue_head(&info
->open_wait
);
1934 init_waitqueue_head(&info
->close_wait
);
1935 info
->isdn_driver
= -1;
1936 info
->isdn_channel
= -1;
1937 info
->drv_index
= -1;
1938 info
->xmit_size
= ISDN_SERIAL_XMIT_SIZE
;
1939 init_timer(&info
->nc_timer
);
1940 info
->nc_timer
.function
= isdn_tty_modem_do_ncarrier
;
1941 info
->nc_timer
.data
= (unsigned long) info
;
1942 skb_queue_head_init(&info
->xmit_queue
);
1943 #ifdef CONFIG_ISDN_AUDIO
1944 skb_queue_head_init(&info
->dtmf_queue
);
1946 if (!(info
->xmit_buf
= kmalloc(ISDN_SERIAL_XMIT_MAX
+ 5, GFP_KERNEL
))) {
1947 printk(KERN_ERR
"Could not allocate modem xmit-buffer\n");
1949 goto err_unregister
;
1951 /* Make room for T.70 header */
1952 info
->xmit_buf
+= 4;
1956 for (i
--; i
>= 0; i
--) {
1958 #ifdef CONFIG_ISDN_TTY_FAX
1961 kfree(info
->xmit_buf
- 4);
1963 tty_unregister_driver(m
->tty_modem
);
1965 put_tty_driver(m
->tty_modem
);
1966 m
->tty_modem
= NULL
;
1976 for (i
= 0; i
< ISDN_MAX_CHANNELS
; i
++) {
1977 info
= &dev
->mdm
.info
[i
];
1978 isdn_tty_cleanup_xmit(info
);
1979 #ifdef CONFIG_ISDN_TTY_FAX
1982 kfree(info
->xmit_buf
- 4);
1984 tty_unregister_driver(dev
->mdm
.tty_modem
);
1985 put_tty_driver(dev
->mdm
.tty_modem
);
1986 dev
->mdm
.tty_modem
= NULL
;
1991 * isdn_tty_match_icall(char *MSN, atemu *tty_emulator, int dev_idx)
1992 * match the MSN against the MSNs (glob patterns) defined for tty_emulator,
1993 * and return 0 for match, 1 for no match, 2 if MSN could match if longer.
1997 isdn_tty_match_icall(char *cid
, atemu
*emu
, int di
)
1999 #ifdef ISDN_DEBUG_MODEM_ICALL
2000 printk(KERN_DEBUG
"m_fi: msn=%s lmsn=%s mmsn=%s mreg[SI1]=%d mreg[SI2]=%d\n",
2001 emu
->msn
, emu
->lmsn
, isdn_map_eaz2msn(emu
->msn
, di
),
2002 emu
->mdmreg
[REG_SI1
], emu
->mdmreg
[REG_SI2
]);
2004 if (strlen(emu
->lmsn
)) {
2005 char *p
= emu
->lmsn
;
2011 if ((q
= strchr(p
, ';')))
2013 if ((tmp
= isdn_msncmp(cid
, isdn_map_eaz2msn(p
, di
))) > ret
)
2015 #ifdef ISDN_DEBUG_MODEM_ICALL
2016 printk(KERN_DEBUG
"m_fi: lmsnX=%s mmsn=%s -> tmp=%d\n",
2017 p
, isdn_map_eaz2msn(emu
->msn
, di
), tmp
);
2032 tmp
= isdn_msncmp(cid
, isdn_map_eaz2msn(emu
->msn
, di
));
2033 #ifdef ISDN_DEBUG_MODEM_ICALL
2034 printk(KERN_DEBUG
"m_fi: mmsn=%s -> tmp=%d\n",
2035 isdn_map_eaz2msn(emu
->msn
, di
), tmp
);
2042 * An incoming call-request has arrived.
2043 * Search the tty-devices for an appropriate device and bind
2044 * it to the ISDN-Channel.
2047 * 0 = No matching device found.
2048 * 1 = A matching device found.
2049 * 3 = No match found, but eventually would match, if
2053 isdn_tty_find_icall(int di
, int ch
, setup_parm
*setup
)
2064 if (!setup
->phone
[0]) {
2066 printk(KERN_INFO
"isdn_tty: Incoming call without OAD, assuming '0'\n");
2069 si1
= (int) setup
->si1
;
2070 si2
= (int) setup
->si2
;
2071 if (!setup
->eazmsn
[0]) {
2072 printk(KERN_WARNING
"isdn_tty: Incoming call without CPN, assuming '0'\n");
2075 eaz
= setup
->eazmsn
;
2076 #ifdef ISDN_DEBUG_MODEM_ICALL
2077 printk(KERN_DEBUG
"m_fi: eaz=%s si1=%d si2=%d\n", eaz
, si1
, si2
);
2080 spin_lock_irqsave(&dev
->lock
, flags
);
2081 for (i
= 0; i
< ISDN_MAX_CHANNELS
; i
++) {
2082 modem_info
*info
= &dev
->mdm
.info
[i
];
2084 if (info
->count
== 0)
2086 if ((info
->emu
.mdmreg
[REG_SI1
] & si2bit
[si1
]) && /* SI1 is matching */
2087 (info
->emu
.mdmreg
[REG_SI2
] == si2
)) { /* SI2 is matching */
2088 idx
= isdn_dc2minor(di
, ch
);
2089 #ifdef ISDN_DEBUG_MODEM_ICALL
2090 printk(KERN_DEBUG
"m_fi: match1 wret=%d\n", wret
);
2091 printk(KERN_DEBUG
"m_fi: idx=%d flags=%08lx drv=%d ch=%d usg=%d\n", idx
,
2092 info
->flags
, info
->isdn_driver
, info
->isdn_channel
,
2096 #ifndef FIX_FILE_TRANSFER
2097 (info
->flags
& ISDN_ASYNC_NORMAL_ACTIVE
) &&
2099 (info
->isdn_driver
== -1) &&
2100 (info
->isdn_channel
== -1) &&
2101 (USG_NONE(dev
->usage
[idx
]))) {
2104 if ((matchret
= isdn_tty_match_icall(eaz
, &info
->emu
, di
)) > wret
)
2106 if (!matchret
) { /* EAZ is matching */
2107 info
->isdn_driver
= di
;
2108 info
->isdn_channel
= ch
;
2109 info
->drv_index
= idx
;
2110 dev
->m_idx
[idx
] = info
->line
;
2111 dev
->usage
[idx
] &= ISDN_USAGE_EXCLUSIVE
;
2112 dev
->usage
[idx
] |= isdn_calc_usage(si1
, info
->emu
.mdmreg
[REG_L2PROT
]);
2113 strcpy(dev
->num
[idx
], nr
);
2114 strcpy(info
->emu
.cpn
, eaz
);
2115 info
->emu
.mdmreg
[REG_SI1I
] = si2bit
[si1
];
2116 info
->emu
.mdmreg
[REG_PLAN
] = setup
->plan
;
2117 info
->emu
.mdmreg
[REG_SCREEN
] = setup
->screen
;
2119 spin_unlock_irqrestore(&dev
->lock
, flags
);
2120 printk(KERN_INFO
"isdn_tty: call from %s, -> RING on ttyI%d\n", nr
,
2122 info
->msr
|= UART_MSR_RI
;
2123 isdn_tty_modem_result(RESULT_RING
, info
);
2124 isdn_timer_ctrl(ISDN_TIMER_MODEMRING
, 1);
2130 spin_unlock_irqrestore(&dev
->lock
, flags
);
2131 printk(KERN_INFO
"isdn_tty: call from %s -> %s %s\n", nr
, eaz
,
2132 ((dev
->drv
[di
]->flags
& DRV_FLAG_REJBUS
) && (wret
!= 2))? "rejected" : "ignored");
2133 return (wret
== 2)?3:0;
2136 #define TTY_IS_ACTIVE(info) \
2137 (info->flags & (ISDN_ASYNC_NORMAL_ACTIVE | ISDN_ASYNC_CALLOUT_ACTIVE))
2140 isdn_tty_stat_callback(int i
, isdn_ctrl
*c
)
2148 if ((mi
= dev
->m_idx
[i
]) >= 0) {
2149 info
= &dev
->mdm
.info
[mi
];
2150 switch (c
->command
) {
2151 case ISDN_STAT_CINF
:
2152 printk(KERN_DEBUG
"CHARGEINFO on ttyI%d: %ld %s\n", info
->line
, c
->arg
, c
->parm
.num
);
2153 info
->emu
.charge
= (unsigned) simple_strtoul(c
->parm
.num
, &e
, 10);
2154 if (e
== (char *)c
->parm
.num
)
2155 info
->emu
.charge
= 0;
2158 case ISDN_STAT_BSENT
:
2159 #ifdef ISDN_TTY_STAT_DEBUG
2160 printk(KERN_DEBUG
"tty_STAT_BSENT ttyI%d\n", info
->line
);
2162 if ((info
->isdn_driver
== c
->driver
) &&
2163 (info
->isdn_channel
== c
->arg
)) {
2164 info
->msr
|= UART_MSR_CTS
;
2165 if (info
->send_outstanding
)
2166 if (!(--info
->send_outstanding
))
2167 info
->lsr
|= UART_LSR_TEMT
;
2168 isdn_tty_tint(info
);
2172 case ISDN_STAT_CAUSE
:
2173 #ifdef ISDN_TTY_STAT_DEBUG
2174 printk(KERN_DEBUG
"tty_STAT_CAUSE ttyI%d\n", info
->line
);
2176 /* Signal cause to tty-device */
2177 strncpy(info
->last_cause
, c
->parm
.num
, 5);
2179 case ISDN_STAT_DISPLAY
:
2180 #ifdef ISDN_TTY_STAT_DEBUG
2181 printk(KERN_DEBUG
"tty_STAT_DISPLAY ttyI%d\n", info
->line
);
2183 /* Signal display to tty-device */
2184 if ((info
->emu
.mdmreg
[REG_DISPLAY
] & BIT_DISPLAY
) &&
2185 !(info
->emu
.mdmreg
[REG_RESPNUM
] & BIT_RESPNUM
)) {
2186 isdn_tty_at_cout("\r\n", info
);
2187 isdn_tty_at_cout("DISPLAY: ", info
);
2188 isdn_tty_at_cout(c
->parm
.display
, info
);
2189 isdn_tty_at_cout("\r\n", info
);
2192 case ISDN_STAT_DCONN
:
2193 #ifdef ISDN_TTY_STAT_DEBUG
2194 printk(KERN_DEBUG
"tty_STAT_DCONN ttyI%d\n", info
->line
);
2196 if (TTY_IS_ACTIVE(info
)) {
2197 if (info
->dialing
== 1) {
2203 case ISDN_STAT_DHUP
:
2204 #ifdef ISDN_TTY_STAT_DEBUG
2205 printk(KERN_DEBUG
"tty_STAT_DHUP ttyI%d\n", info
->line
);
2207 if (TTY_IS_ACTIVE(info
)) {
2208 if (info
->dialing
== 1)
2209 isdn_tty_modem_result(RESULT_BUSY
, info
);
2210 if (info
->dialing
> 1)
2211 isdn_tty_modem_result(RESULT_NO_CARRIER
, info
);
2213 #ifdef ISDN_DEBUG_MODEM_HUP
2214 printk(KERN_DEBUG
"Mhup in ISDN_STAT_DHUP\n");
2216 isdn_tty_modem_hup(info
, 0);
2220 case ISDN_STAT_BCONN
:
2221 #ifdef ISDN_TTY_STAT_DEBUG
2222 printk(KERN_DEBUG
"tty_STAT_BCONN ttyI%d\n", info
->line
);
2224 /* Wake up any processes waiting
2225 * for incoming call of this device when
2226 * DCD follow the state of incoming carrier
2228 if (info
->blocked_open
&&
2229 (info
->emu
.mdmreg
[REG_DCD
] & BIT_DCD
)) {
2230 wake_up_interruptible(&info
->open_wait
);
2233 /* Schedule CONNECT-Message to any tty
2234 * waiting for it and
2235 * set DCD-bit of its modem-status.
2237 if (TTY_IS_ACTIVE(info
) ||
2238 (info
->blocked_open
&& (info
->emu
.mdmreg
[REG_DCD
] & BIT_DCD
))) {
2239 info
->msr
|= UART_MSR_DCD
;
2240 info
->emu
.charge
= 0;
2241 if (info
->dialing
& 0xf)
2247 if (USG_MODEM(dev
->usage
[i
])) {
2248 if (info
->emu
.mdmreg
[REG_L2PROT
] == ISDN_PROTO_L2_MODEM
) {
2249 strcpy(info
->emu
.connmsg
, c
->parm
.num
);
2250 isdn_tty_modem_result(RESULT_CONNECT
, info
);
2252 isdn_tty_modem_result(RESULT_CONNECT64000
, info
);
2254 if (USG_VOICE(dev
->usage
[i
]))
2255 isdn_tty_modem_result(RESULT_VCON
, info
);
2259 case ISDN_STAT_BHUP
:
2260 #ifdef ISDN_TTY_STAT_DEBUG
2261 printk(KERN_DEBUG
"tty_STAT_BHUP ttyI%d\n", info
->line
);
2263 if (TTY_IS_ACTIVE(info
)) {
2264 #ifdef ISDN_DEBUG_MODEM_HUP
2265 printk(KERN_DEBUG
"Mhup in ISDN_STAT_BHUP\n");
2267 isdn_tty_modem_hup(info
, 0);
2271 case ISDN_STAT_NODCH
:
2272 #ifdef ISDN_TTY_STAT_DEBUG
2273 printk(KERN_DEBUG
"tty_STAT_NODCH ttyI%d\n", info
->line
);
2275 if (TTY_IS_ACTIVE(info
)) {
2276 if (info
->dialing
) {
2280 sprintf(info
->last_cause
, "0000");
2281 isdn_tty_modem_result(RESULT_NO_DIALTONE
, info
);
2283 isdn_tty_modem_hup(info
, 0);
2287 case ISDN_STAT_UNLOAD
:
2288 #ifdef ISDN_TTY_STAT_DEBUG
2289 printk(KERN_DEBUG
"tty_STAT_UNLOAD ttyI%d\n", info
->line
);
2291 for (i
= 0; i
< ISDN_MAX_CHANNELS
; i
++) {
2292 info
= &dev
->mdm
.info
[i
];
2293 if (info
->isdn_driver
== c
->driver
) {
2295 isdn_tty_modem_hup(info
, 1);
2299 #ifdef CONFIG_ISDN_TTY_FAX
2300 case ISDN_STAT_FAXIND
:
2301 if (TTY_IS_ACTIVE(info
)) {
2302 isdn_tty_fax_command(info
, c
);
2306 #ifdef CONFIG_ISDN_AUDIO
2307 case ISDN_STAT_AUDIO
:
2308 if (TTY_IS_ACTIVE(info
)) {
2309 switch(c
->parm
.num
[0]) {
2310 case ISDN_AUDIO_DTMF
:
2311 if (info
->vonline
) {
2312 isdn_audio_put_dle_code(info
,
2325 /*********************************************************************
2326 Modem-Emulator-Routines
2327 *********************************************************************/
2329 #define cmdchar(c) ((c>=' ')&&(c<=0x7f))
2332 * Put a message from the AT-emulator into receive-buffer of tty,
2333 * convert CR, LF, and BS to values in modem-registers 3, 4 and 5.
2336 isdn_tty_at_cout(char *msg
, modem_info
* info
)
2338 struct tty_struct
*tty
;
2339 atemu
*m
= &info
->emu
;
2343 struct sk_buff
*skb
= NULL
;
2348 printk(KERN_WARNING
"isdn_tty: Null-Message in isdn_tty_at_cout\n");
2354 spin_lock_irqsave(&info
->readlock
, flags
);
2356 if ((info
->flags
& ISDN_ASYNC_CLOSING
) || (!tty
)) {
2357 spin_unlock_irqrestore(&info
->readlock
, flags
);
2361 /* use queue instead of direct, if online and */
2362 /* data is in queue or buffer is full */
2363 if (info
->online
&& ((tty_buffer_request_room(tty
, l
) < l
) ||
2364 !skb_queue_empty(&dev
->drv
[info
->isdn_driver
]->rpqueue
[info
->isdn_channel
]))) {
2365 skb
= alloc_skb(l
, GFP_ATOMIC
);
2367 spin_unlock_irqrestore(&info
->readlock
, flags
);
2370 sp
= skb_put(skb
, l
);
2371 #ifdef CONFIG_ISDN_AUDIO
2372 ISDN_AUDIO_SKB_DLECOUNT(skb
) = 0;
2373 ISDN_AUDIO_SKB_LOCK(skb
) = 0;
2377 for (p
= msg
; *p
; p
++) {
2380 c
= m
->mdmreg
[REG_CR
];
2383 c
= m
->mdmreg
[REG_LF
];
2386 c
= m
->mdmreg
[REG_BS
];
2394 if(tty_insert_flip_char(tty
, c
, TTY_NORMAL
) == 0)
2399 __skb_queue_tail(&dev
->drv
[info
->isdn_driver
]->rpqueue
[info
->isdn_channel
], skb
);
2400 dev
->drv
[info
->isdn_driver
]->rcvcount
[info
->isdn_channel
] += skb
->len
;
2401 spin_unlock_irqrestore(&info
->readlock
, flags
);
2402 /* Schedule dequeuing */
2403 if (dev
->modempoll
&& info
->rcvsched
)
2404 isdn_timer_ctrl(ISDN_TIMER_MODEMREAD
, 1);
2407 spin_unlock_irqrestore(&info
->readlock
, flags
);
2408 tty_flip_buffer_push(tty
);
2413 * Perform ATH Hangup
2416 isdn_tty_on_hook(modem_info
* info
)
2418 if (info
->isdn_channel
>= 0) {
2419 #ifdef ISDN_DEBUG_MODEM_HUP
2420 printk(KERN_DEBUG
"Mhup in isdn_tty_on_hook\n");
2422 isdn_tty_modem_hup(info
, 1);
2427 isdn_tty_off_hook(void)
2429 printk(KERN_DEBUG
"isdn_tty_off_hook\n");
2432 #define PLUSWAIT1 (HZ/2) /* 0.5 sec. */
2433 #define PLUSWAIT2 (HZ*3/2) /* 1.5 sec */
2436 * Check Buffer for Modem-escape-sequence, activate timer-callback to
2437 * isdn_tty_modem_escape() if sequence found.
2440 * p pointer to databuffer
2441 * plus escape-character
2442 * count length of buffer
2443 * pluscount count of valid escape-characters so far
2444 * lastplus timestamp of last character
2447 isdn_tty_check_esc(const u_char
* p
, u_char plus
, int count
, int *pluscount
,
2458 if (*(p
++) == plus
) {
2459 if ((*pluscount
)++) {
2460 /* Time since last '+' > 0.5 sec. ? */
2461 if (time_after(jiffies
, *lastplus
+ PLUSWAIT1
))
2464 /* Time since last non-'+' < 1.5 sec. ? */
2465 if (time_before(jiffies
, *lastplus
+ PLUSWAIT2
))
2468 if ((*pluscount
== 3) && (count
== 1))
2469 isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS
, 1);
2474 *lastplus
= jiffies
;
2480 * Return result of AT-emulator to tty-receive-buffer, depending on
2481 * modem-register 12, bit 0 and 1.
2482 * For CONNECT-messages also switch to online-mode.
2483 * For RING-message handle auto-ATA if register 0 != 0
2487 isdn_tty_modem_result(int code
, modem_info
* info
)
2489 atemu
*m
= &info
->emu
;
2490 static char *msg
[] =
2491 {"OK", "CONNECT", "RING", "NO CARRIER", "ERROR",
2492 "CONNECT 64000", "NO DIALTONE", "BUSY", "NO ANSWER",
2493 "RINGING", "NO MSN/EAZ", "VCON", "RUNG"};
2494 char s
[ISDN_MSNLEN
+10];
2498 m
->mdmreg
[REG_RINGCNT
]++;
2499 if (m
->mdmreg
[REG_RINGCNT
] == m
->mdmreg
[REG_RINGATA
])
2500 /* Automatically accept incoming call */
2501 isdn_tty_cmd_ATA(info
);
2503 case RESULT_NO_CARRIER
:
2504 #ifdef ISDN_DEBUG_MODEM_HUP
2505 printk(KERN_DEBUG
"modem_result: NO CARRIER %d %d\n",
2506 (info
->flags
& ISDN_ASYNC_CLOSING
),
2509 m
->mdmreg
[REG_RINGCNT
] = 0;
2510 del_timer(&info
->nc_timer
);
2512 if ((info
->flags
& ISDN_ASYNC_CLOSING
) || (!info
->tty
)) {
2515 #ifdef CONFIG_ISDN_AUDIO
2516 if (info
->vonline
& 1) {
2517 #ifdef ISDN_DEBUG_MODEM_VOICE
2518 printk(KERN_DEBUG
"res3: send DLE-ETX on ttyI%d\n",
2521 /* voice-recording, add DLE-ETX */
2522 isdn_tty_at_cout("\020\003", info
);
2524 if (info
->vonline
& 2) {
2525 #ifdef ISDN_DEBUG_MODEM_VOICE
2526 printk(KERN_DEBUG
"res3: send DLE-DC4 on ttyI%d\n",
2529 /* voice-playing, add DLE-DC4 */
2530 isdn_tty_at_cout("\020\024", info
);
2534 case RESULT_CONNECT
:
2535 case RESULT_CONNECT64000
:
2536 sprintf(info
->last_cause
, "0000");
2541 #ifdef ISDN_DEBUG_MODEM_VOICE
2542 printk(KERN_DEBUG
"res3: send VCON on ttyI%d\n",
2545 sprintf(info
->last_cause
, "0000");
2549 } /* switch(code) */
2551 if (m
->mdmreg
[REG_RESP
] & BIT_RESP
) {
2553 if (m
->mdmreg
[REG_RESPNUM
] & BIT_RESPNUM
) {
2554 /* Show numeric results only */
2555 sprintf(s
, "\r\n%d\r\n", code
);
2556 isdn_tty_at_cout(s
, info
);
2558 if (code
== RESULT_RING
) {
2559 /* return if "show RUNG" and ringcounter>1 */
2560 if ((m
->mdmreg
[REG_RUNG
] & BIT_RUNG
) &&
2561 (m
->mdmreg
[REG_RINGCNT
] > 1))
2563 /* print CID, _before_ _every_ ring */
2564 if (!(m
->mdmreg
[REG_CIDONCE
] & BIT_CIDONCE
)) {
2565 isdn_tty_at_cout("\r\nCALLER NUMBER: ", info
);
2566 isdn_tty_at_cout(dev
->num
[info
->drv_index
], info
);
2567 if (m
->mdmreg
[REG_CDN
] & BIT_CDN
) {
2568 isdn_tty_at_cout("\r\nCALLED NUMBER: ", info
);
2569 isdn_tty_at_cout(info
->emu
.cpn
, info
);
2573 isdn_tty_at_cout("\r\n", info
);
2574 isdn_tty_at_cout(msg
[code
], info
);
2576 case RESULT_CONNECT
:
2577 switch (m
->mdmreg
[REG_L2PROT
]) {
2578 case ISDN_PROTO_L2_MODEM
:
2579 isdn_tty_at_cout(" ", info
);
2580 isdn_tty_at_cout(m
->connmsg
, info
);
2585 /* Append CPN, if enabled */
2586 if ((m
->mdmreg
[REG_CPN
] & BIT_CPN
)) {
2587 sprintf(s
, "/%s", m
->cpn
);
2588 isdn_tty_at_cout(s
, info
);
2590 /* Print CID only once, _after_ 1st RING */
2591 if ((m
->mdmreg
[REG_CIDONCE
] & BIT_CIDONCE
) &&
2592 (m
->mdmreg
[REG_RINGCNT
] == 1)) {
2593 isdn_tty_at_cout("\r\n", info
);
2594 isdn_tty_at_cout("CALLER NUMBER: ", info
);
2595 isdn_tty_at_cout(dev
->num
[info
->drv_index
], info
);
2596 if (m
->mdmreg
[REG_CDN
] & BIT_CDN
) {
2597 isdn_tty_at_cout("\r\nCALLED NUMBER: ", info
);
2598 isdn_tty_at_cout(info
->emu
.cpn
, info
);
2602 case RESULT_NO_CARRIER
:
2603 case RESULT_NO_DIALTONE
:
2605 case RESULT_NO_ANSWER
:
2606 m
->mdmreg
[REG_RINGCNT
] = 0;
2607 /* Append Cause-Message if enabled */
2608 if (m
->mdmreg
[REG_RESPXT
] & BIT_RESPXT
) {
2609 sprintf(s
, "/%s", info
->last_cause
);
2610 isdn_tty_at_cout(s
, info
);
2613 case RESULT_CONNECT64000
:
2614 /* Append Protocol to CONNECT message */
2615 switch (m
->mdmreg
[REG_L2PROT
]) {
2616 case ISDN_PROTO_L2_X75I
:
2617 case ISDN_PROTO_L2_X75UI
:
2618 case ISDN_PROTO_L2_X75BUI
:
2619 isdn_tty_at_cout("/X.75", 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("/V110/9600", info
);
2627 case ISDN_PROTO_L2_V11019
:
2628 isdn_tty_at_cout("/V110/19200", info
);
2630 case ISDN_PROTO_L2_V11038
:
2631 isdn_tty_at_cout("/V110/38400", info
);
2634 if (m
->mdmreg
[REG_T70
] & BIT_T70
) {
2635 isdn_tty_at_cout("/T.70", info
);
2636 if (m
->mdmreg
[REG_T70
] & BIT_T70_EXT
)
2637 isdn_tty_at_cout("+", info
);
2641 isdn_tty_at_cout("\r\n", info
);
2644 if (code
== RESULT_NO_CARRIER
) {
2645 if ((info
->flags
& ISDN_ASYNC_CLOSING
) || (!info
->tty
)) {
2648 #ifdef CONFIG_ISDN_AUDIO
2649 if ( !info
->vonline
)
2650 tty_ldisc_flush(info
->tty
);
2652 tty_ldisc_flush(info
->tty
);
2654 if ((info
->flags
& ISDN_ASYNC_CHECK_CD
) &&
2655 (!((info
->flags
& ISDN_ASYNC_CALLOUT_ACTIVE
) &&
2656 (info
->flags
& ISDN_ASYNC_CALLOUT_NOHUP
)))) {
2657 tty_hangup(info
->tty
);
2664 * Display a modem-register-value.
2667 isdn_tty_show_profile(int ridx
, modem_info
* info
)
2671 sprintf(v
, "\r\n%d", info
->emu
.mdmreg
[ridx
]);
2672 isdn_tty_at_cout(v
, info
);
2676 * Get MSN-string from char-pointer, set pointer to end of number
2679 isdn_tty_get_msnstr(char *n
, char **p
)
2681 int limit
= ISDN_MSNLEN
- 1;
2683 while (((*p
[0] >= '0' && *p
[0] <= '9') ||
2684 /* Why a comma ??? */
2685 (*p
[0] == ',') || (*p
[0] == ':')) &&
2692 * Get phone-number from modem-commandbuffer
2695 isdn_tty_getdial(char *p
, char *q
,int cnt
)
2698 int limit
= ISDN_MSNLEN
- 1; /* MUST match the size of interface var to avoid
2701 while (strchr(" 0123456789,#.*WPTSR-", *p
) && *p
&& --cnt
>0) {
2702 if ((*p
>= '0' && *p
<= '9') || ((*p
== 'S') && first
) ||
2703 ((*p
== 'R') && first
) ||
2704 (*p
== '*') || (*p
== '#')) {
2716 #define PARSE_ERROR { isdn_tty_modem_result(RESULT_ERROR, info); return; }
2717 #define PARSE_ERROR1 { isdn_tty_modem_result(RESULT_ERROR, info); return 1; }
2720 isdn_tty_report(modem_info
* info
)
2722 atemu
*m
= &info
->emu
;
2725 isdn_tty_at_cout("\r\nStatistics of last connection:\r\n\r\n", info
);
2726 sprintf(s
, " Remote Number: %s\r\n", info
->last_num
);
2727 isdn_tty_at_cout(s
, info
);
2728 sprintf(s
, " Direction: %s\r\n", info
->last_dir
? "outgoing" : "incoming");
2729 isdn_tty_at_cout(s
, info
);
2730 isdn_tty_at_cout(" Layer-2 Protocol: ", info
);
2731 switch (info
->last_l2
) {
2732 case ISDN_PROTO_L2_X75I
:
2733 isdn_tty_at_cout("X.75i", info
);
2735 case ISDN_PROTO_L2_X75UI
:
2736 isdn_tty_at_cout("X.75ui", info
);
2738 case ISDN_PROTO_L2_X75BUI
:
2739 isdn_tty_at_cout("X.75bui", info
);
2741 case ISDN_PROTO_L2_HDLC
:
2742 isdn_tty_at_cout("HDLC", info
);
2744 case ISDN_PROTO_L2_V11096
:
2745 isdn_tty_at_cout("V.110 9600 Baud", info
);
2747 case ISDN_PROTO_L2_V11019
:
2748 isdn_tty_at_cout("V.110 19200 Baud", info
);
2750 case ISDN_PROTO_L2_V11038
:
2751 isdn_tty_at_cout("V.110 38400 Baud", info
);
2753 case ISDN_PROTO_L2_TRANS
:
2754 isdn_tty_at_cout("transparent", info
);
2756 case ISDN_PROTO_L2_MODEM
:
2757 isdn_tty_at_cout("modem", info
);
2759 case ISDN_PROTO_L2_FAX
:
2760 isdn_tty_at_cout("fax", info
);
2763 isdn_tty_at_cout("unknown", info
);
2766 if (m
->mdmreg
[REG_T70
] & BIT_T70
) {
2767 isdn_tty_at_cout("/T.70", info
);
2768 if (m
->mdmreg
[REG_T70
] & BIT_T70_EXT
)
2769 isdn_tty_at_cout("+", info
);
2771 isdn_tty_at_cout("\r\n", info
);
2772 isdn_tty_at_cout(" Service: ", info
);
2773 switch (info
->last_si
) {
2775 isdn_tty_at_cout("audio\r\n", info
);
2778 isdn_tty_at_cout("btx\r\n", info
);
2781 isdn_tty_at_cout("data\r\n", info
);
2784 sprintf(s
, "%d\r\n", info
->last_si
);
2785 isdn_tty_at_cout(s
, info
);
2788 sprintf(s
, " Hangup location: %s\r\n", info
->last_lhup
? "local" : "remote");
2789 isdn_tty_at_cout(s
, info
);
2790 sprintf(s
, " Last cause: %s\r\n", info
->last_cause
);
2791 isdn_tty_at_cout(s
, info
);
2795 * Parse AT&.. commands.
2798 isdn_tty_cmd_ATand(char **p
, modem_info
* info
)
2800 atemu
*m
= &info
->emu
;
2804 #define MAXRB (sizeof(rb) - 1)
2808 /* &B - Set Buffersize */
2811 if ((i
< 0) || (i
> ISDN_SERIAL_XMIT_MAX
))
2813 #ifdef CONFIG_ISDN_AUDIO
2814 if ((m
->mdmreg
[REG_SI1
] & 1) && (i
> VBUF
))
2817 m
->mdmreg
[REG_PSIZE
] = i
/ 16;
2818 info
->xmit_size
= m
->mdmreg
[REG_PSIZE
] * 16;
2819 switch (m
->mdmreg
[REG_L2PROT
]) {
2820 case ISDN_PROTO_L2_V11096
:
2821 case ISDN_PROTO_L2_V11019
:
2822 case ISDN_PROTO_L2_V11038
:
2823 info
->xmit_size
/= 10;
2827 /* &C - DCD Status */
2829 switch (isdn_getnum(p
)) {
2831 m
->mdmreg
[REG_DCD
] &= ~BIT_DCD
;
2834 m
->mdmreg
[REG_DCD
] |= BIT_DCD
;
2841 /* &D - Set DTR-Low-behavior */
2843 switch (isdn_getnum(p
)) {
2845 m
->mdmreg
[REG_DTRHUP
] &= ~BIT_DTRHUP
;
2846 m
->mdmreg
[REG_DTRR
] &= ~BIT_DTRR
;
2849 m
->mdmreg
[REG_DTRHUP
] |= BIT_DTRHUP
;
2850 m
->mdmreg
[REG_DTRR
] &= ~BIT_DTRR
;
2853 m
->mdmreg
[REG_DTRHUP
] |= BIT_DTRHUP
;
2854 m
->mdmreg
[REG_DTRR
] |= BIT_DTRR
;
2861 /* &E -Set EAZ/MSN */
2863 isdn_tty_get_msnstr(m
->msn
, p
);
2866 /* &F -Set Factory-Defaults */
2868 if (info
->msr
& UART_MSR_DCD
)
2870 isdn_tty_reset_profile(m
);
2871 isdn_tty_modem_reset_regs(info
, 1);
2873 #ifdef DUMMY_HAYES_AT
2875 /* only for be compilant with common scripts */
2876 /* &K Flowcontrol - no function */
2882 /* &L -Set Numbers to listen on */
2885 while (*p
[0] && (strchr("0123456789,-*[]?;", *p
[0])) &&
2886 (i
< ISDN_LMSNLEN
- 1))
2887 m
->lmsn
[i
++] = *p
[0]++;
2891 /* &R - Set V.110 bitrate adaption */
2896 /* Switch off V.110, back to X.75 */
2897 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_X75I
;
2898 m
->mdmreg
[REG_SI2
] = 0;
2899 info
->xmit_size
= m
->mdmreg
[REG_PSIZE
] * 16;
2902 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_V11096
;
2903 m
->mdmreg
[REG_SI2
] = 197;
2904 info
->xmit_size
= m
->mdmreg
[REG_PSIZE
] * 16 / 10;
2907 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_V11019
;
2908 m
->mdmreg
[REG_SI2
] = 199;
2909 info
->xmit_size
= m
->mdmreg
[REG_PSIZE
] * 16 / 10;
2912 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_V11038
;
2913 m
->mdmreg
[REG_SI2
] = 198; /* no existing standard for this */
2914 info
->xmit_size
= m
->mdmreg
[REG_PSIZE
] * 16 / 10;
2919 /* Switch off T.70 */
2920 m
->mdmreg
[REG_T70
] &= ~(BIT_T70
| BIT_T70_EXT
);
2922 m
->mdmreg
[REG_SI1
] |= 4;
2925 /* &S - Set Windowsize */
2928 if ((i
> 0) && (i
< 9))
2929 m
->mdmreg
[REG_WSIZE
] = i
;
2934 /* &V - Show registers */
2936 isdn_tty_at_cout("\r\n", info
);
2937 for (i
= 0; i
< ISDN_MODEM_NUMREG
; i
++) {
2938 sprintf(rb
, "S%02d=%03d%s", i
,
2939 m
->mdmreg
[i
], ((i
+ 1) % 10) ? " " : "\r\n");
2940 isdn_tty_at_cout(rb
, info
);
2942 sprintf(rb
, "\r\nEAZ/MSN: %.50s\r\n",
2943 strlen(m
->msn
) ? m
->msn
: "None");
2944 isdn_tty_at_cout(rb
, info
);
2945 if (strlen(m
->lmsn
)) {
2946 isdn_tty_at_cout("\r\nListen: ", info
);
2947 isdn_tty_at_cout(m
->lmsn
, info
);
2948 isdn_tty_at_cout("\r\n", info
);
2952 /* &W - Write Profile */
2957 modem_write_profile(m
);
2964 /* &X - Switch to BTX-Mode and T.70 */
2966 switch (isdn_getnum(p
)) {
2968 m
->mdmreg
[REG_T70
] &= ~(BIT_T70
| BIT_T70_EXT
);
2969 info
->xmit_size
= m
->mdmreg
[REG_PSIZE
] * 16;
2972 m
->mdmreg
[REG_T70
] |= BIT_T70
;
2973 m
->mdmreg
[REG_T70
] &= ~BIT_T70_EXT
;
2974 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_X75I
;
2975 info
->xmit_size
= 112;
2976 m
->mdmreg
[REG_SI1
] = 4;
2977 m
->mdmreg
[REG_SI2
] = 0;
2980 m
->mdmreg
[REG_T70
] |= (BIT_T70
| BIT_T70_EXT
);
2981 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_X75I
;
2982 info
->xmit_size
= 112;
2983 m
->mdmreg
[REG_SI1
] = 4;
2984 m
->mdmreg
[REG_SI2
] = 0;
2997 isdn_tty_check_ats(int mreg
, int mval
, modem_info
* info
, atemu
* m
)
2999 /* Some plausibility checks */
3002 if (mval
> ISDN_PROTO_L2_MAX
)
3006 if ((mval
* 16) > ISDN_SERIAL_XMIT_MAX
)
3008 #ifdef CONFIG_ISDN_AUDIO
3009 if ((m
->mdmreg
[REG_SI1
] & 1) && (mval
> VBUFX
))
3012 info
->xmit_size
= mval
* 16;
3013 switch (m
->mdmreg
[REG_L2PROT
]) {
3014 case ISDN_PROTO_L2_V11096
:
3015 case ISDN_PROTO_L2_V11019
:
3016 case ISDN_PROTO_L2_V11038
:
3017 info
->xmit_size
/= 10;
3023 /* readonly registers */
3030 * Perform ATS command
3033 isdn_tty_cmd_ATS(char **p
, modem_info
* info
)
3035 atemu
*m
= &info
->emu
;
3041 mreg
= isdn_getnum(p
);
3042 if (mreg
< 0 || mreg
>= ISDN_MODEM_NUMREG
)
3047 mval
= isdn_getnum(p
);
3048 if (mval
< 0 || mval
> 255)
3050 if (isdn_tty_check_ats(mreg
, mval
, info
, m
))
3052 m
->mdmreg
[mreg
] = mval
;
3055 /* Set/Clear a single bit */
3057 bitpos
= isdn_getnum(p
);
3058 if ((bitpos
< 0) || (bitpos
> 7))
3063 bval
= isdn_getnum(p
);
3064 if (bval
< 0 || bval
> 1)
3067 mval
= m
->mdmreg
[mreg
] | (1 << bitpos
);
3069 mval
= m
->mdmreg
[mreg
] & ~(1 << bitpos
);
3070 if (isdn_tty_check_ats(mreg
, mval
, info
, m
))
3072 m
->mdmreg
[mreg
] = mval
;
3076 isdn_tty_at_cout("\r\n", info
);
3077 isdn_tty_at_cout((m
->mdmreg
[mreg
] & (1 << bitpos
)) ? "1" : "0",
3086 isdn_tty_show_profile(mreg
, info
);
3096 * Perform ATA command
3099 isdn_tty_cmd_ATA(modem_info
* info
)
3101 atemu
*m
= &info
->emu
;
3105 if (info
->msr
& UART_MSR_RI
) {
3106 /* Accept incoming call */
3108 strcpy(info
->last_num
, dev
->num
[info
->drv_index
]);
3109 m
->mdmreg
[REG_RINGCNT
] = 0;
3110 info
->msr
&= ~UART_MSR_RI
;
3111 l2
= m
->mdmreg
[REG_L2PROT
];
3112 #ifdef CONFIG_ISDN_AUDIO
3113 /* If more than one bit set in reg18, autoselect Layer2 */
3114 if ((m
->mdmreg
[REG_SI1
] & m
->mdmreg
[REG_SI1I
]) != m
->mdmreg
[REG_SI1
]) {
3115 if (m
->mdmreg
[REG_SI1I
] == 1) {
3116 if ((l2
!= ISDN_PROTO_L2_MODEM
) && (l2
!= ISDN_PROTO_L2_FAX
))
3117 l2
= ISDN_PROTO_L2_TRANS
;
3119 l2
= ISDN_PROTO_L2_X75I
;
3122 cmd
.driver
= info
->isdn_driver
;
3123 cmd
.command
= ISDN_CMD_SETL2
;
3124 cmd
.arg
= info
->isdn_channel
+ (l2
<< 8);
3127 cmd
.driver
= info
->isdn_driver
;
3128 cmd
.command
= ISDN_CMD_SETL3
;
3129 cmd
.arg
= info
->isdn_channel
+ (m
->mdmreg
[REG_L3PROT
] << 8);
3130 #ifdef CONFIG_ISDN_TTY_FAX
3131 if (l2
== ISDN_PROTO_L2_FAX
) {
3132 cmd
.parm
.fax
= info
->fax
;
3133 info
->fax
->direction
= ISDN_TTY_FAX_CONN_IN
;
3137 cmd
.driver
= info
->isdn_driver
;
3138 cmd
.arg
= info
->isdn_channel
;
3139 cmd
.command
= ISDN_CMD_ACCEPTD
;
3141 info
->emu
.carrierwait
= 0;
3143 isdn_timer_ctrl(ISDN_TIMER_CARRIER
, 1);
3145 isdn_tty_modem_result(RESULT_NO_ANSWER
, info
);
3148 #ifdef CONFIG_ISDN_AUDIO
3150 * Parse AT+F.. commands
3153 isdn_tty_cmd_PLUSF(char **p
, modem_info
* info
)
3155 atemu
*m
= &info
->emu
;
3158 if (!strncmp(p
[0], "CLASS", 5)) {
3163 sprintf(rs
, "\r\n%d",
3164 (m
->mdmreg
[REG_SI1
] & 1) ? 8 : 0);
3165 #ifdef CONFIG_ISDN_TTY_FAX
3166 if (TTY_IS_FCLASS2(info
))
3167 sprintf(rs
, "\r\n2");
3168 else if (TTY_IS_FCLASS1(info
))
3169 sprintf(rs
, "\r\n1");
3171 isdn_tty_at_cout(rs
, info
);
3178 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_X75I
;
3179 m
->mdmreg
[REG_L3PROT
] = ISDN_PROTO_L3_TRANS
;
3180 m
->mdmreg
[REG_SI1
] = 4;
3182 m
->mdmreg
[REG_PSIZE
] * 16;
3184 #ifdef CONFIG_ISDN_TTY_FAX
3187 if (!(dev
->global_features
&
3188 ISDN_FEATURE_L3_FCLASS1
))
3190 m
->mdmreg
[REG_SI1
] = 1;
3191 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_FAX
;
3192 m
->mdmreg
[REG_L3PROT
] = ISDN_PROTO_L3_FCLASS1
;
3194 m
->mdmreg
[REG_PSIZE
] * 16;
3198 if (!(dev
->global_features
&
3199 ISDN_FEATURE_L3_FCLASS2
))
3201 m
->mdmreg
[REG_SI1
] = 1;
3202 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_FAX
;
3203 m
->mdmreg
[REG_L3PROT
] = ISDN_PROTO_L3_FCLASS2
;
3205 m
->mdmreg
[REG_PSIZE
] * 16;
3210 /* L2 will change on dialout with si=1 */
3211 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_X75I
;
3212 m
->mdmreg
[REG_L3PROT
] = ISDN_PROTO_L3_TRANS
;
3213 m
->mdmreg
[REG_SI1
] = 5;
3214 info
->xmit_size
= VBUF
;
3218 strcpy(rs
, "\r\n0,");
3219 #ifdef CONFIG_ISDN_TTY_FAX
3220 if (dev
->global_features
&
3221 ISDN_FEATURE_L3_FCLASS1
)
3223 if (dev
->global_features
&
3224 ISDN_FEATURE_L3_FCLASS2
)
3228 isdn_tty_at_cout(rs
, info
);
3239 #ifdef CONFIG_ISDN_TTY_FAX
3240 return (isdn_tty_cmd_PLUSF_FAX(p
, info
));
3247 * Parse AT+V.. commands
3250 isdn_tty_cmd_PLUSV(char **p
, modem_info
* info
)
3252 atemu
*m
= &info
->emu
;
3254 static char *vcmd
[] =
3255 {"NH", "IP", "LS", "RX", "SD", "SM", "TX", "DD", NULL
};
3263 if (!strncmp(vcmd
[i
], p
[0], 2)) {
3271 /* AT+VNH - Auto hangup feature */
3275 isdn_tty_at_cout("\r\n1", info
);
3285 isdn_tty_at_cout("\r\n1", info
);
3296 /* AT+VIP - Reset all voice parameters */
3297 isdn_tty_modem_reset_vpar(m
);
3300 /* AT+VLS - Select device, accept incoming call */
3304 sprintf(rs
, "\r\n%d", m
->vpar
[0]);
3305 isdn_tty_at_cout(rs
, info
);
3320 isdn_tty_at_cout("\r\n0,2", info
);
3331 /* AT+VRX - Start recording */
3334 if (info
->online
!= 1) {
3335 isdn_tty_modem_result(RESULT_NO_ANSWER
, info
);
3338 info
->dtmf_state
= isdn_audio_dtmf_init(info
->dtmf_state
);
3339 if (!info
->dtmf_state
) {
3340 printk(KERN_WARNING
"isdn_tty: Couldn't malloc dtmf state\n");
3343 info
->silence_state
= isdn_audio_silence_init(info
->silence_state
);
3344 if (!info
->silence_state
) {
3345 printk(KERN_WARNING
"isdn_tty: Couldn't malloc silence state\n");
3348 if (m
->vpar
[3] < 5) {
3349 info
->adpcmr
= isdn_audio_adpcm_init(info
->adpcmr
, m
->vpar
[3]);
3350 if (!info
->adpcmr
) {
3351 printk(KERN_WARNING
"isdn_tty: Couldn't malloc adpcm state\n");
3355 #ifdef ISDN_DEBUG_AT
3356 printk(KERN_DEBUG
"AT: +VRX\n");
3359 isdn_tty_modem_result(RESULT_CONNECT
, info
);
3363 /* AT+VSD - Silence detection */
3367 sprintf(rs
, "\r\n<%d>,<%d>",
3370 isdn_tty_at_cout(rs
, info
);
3374 if ((*p
[0]>='0') && (*p
[0]<='9')) {
3375 par1
= isdn_getnum(p
);
3376 if ((par1
< 0) || (par1
> 31))
3381 par2
= isdn_getnum(p
);
3382 if ((par2
< 0) || (par2
> 255))
3390 isdn_tty_at_cout("\r\n<0-31>,<0-255>",
3401 /* AT+VSM - Select compression */
3405 sprintf(rs
, "\r\n<%d>,<%d><8000>",
3408 isdn_tty_at_cout(rs
, info
);
3418 par1
= isdn_getnum(p
);
3419 if ((par1
< 2) || (par1
> 6))
3425 isdn_tty_at_cout("\r\n2;ADPCM;2;0;(8000)\r\n",
3427 isdn_tty_at_cout("3;ADPCM;3;0;(8000)\r\n",
3429 isdn_tty_at_cout("4;ADPCM;4;0;(8000)\r\n",
3431 isdn_tty_at_cout("5;ALAW;8;0;(8000)\r\n",
3433 isdn_tty_at_cout("6;ULAW;8;0;(8000)\r\n",
3445 /* AT+VTX - Start sending */
3448 if (info
->online
!= 1) {
3449 isdn_tty_modem_result(RESULT_NO_ANSWER
, info
);
3452 info
->dtmf_state
= isdn_audio_dtmf_init(info
->dtmf_state
);
3453 if (!info
->dtmf_state
) {
3454 printk(KERN_WARNING
"isdn_tty: Couldn't malloc dtmf state\n");
3457 if (m
->vpar
[3] < 5) {
3458 info
->adpcms
= isdn_audio_adpcm_init(info
->adpcms
, m
->vpar
[3]);
3459 if (!info
->adpcms
) {
3460 printk(KERN_WARNING
"isdn_tty: Couldn't malloc adpcm state\n");
3464 #ifdef ISDN_DEBUG_AT
3465 printk(KERN_DEBUG
"AT: +VTX\n");
3469 isdn_tty_modem_result(RESULT_CONNECT
, info
);
3473 /* AT+VDD - DTMF detection */
3477 sprintf(rs
, "\r\n<%d>,<%d>",
3480 isdn_tty_at_cout(rs
, info
);
3484 if ((*p
[0]>='0') && (*p
[0]<='9')) {
3485 if (info
->online
!= 1)
3487 par1
= isdn_getnum(p
);
3488 if ((par1
< 0) || (par1
> 15))
3493 par2
= isdn_getnum(p
);
3494 if ((par2
< 0) || (par2
> 255))
3498 cmd
.driver
= info
->isdn_driver
;
3499 cmd
.command
= ISDN_CMD_AUDIO
;
3500 cmd
.arg
= info
->isdn_channel
+ (ISDN_AUDIO_SETDD
<< 8);
3501 cmd
.parm
.num
[0] = par1
;
3502 cmd
.parm
.num
[1] = par2
;
3508 isdn_tty_at_cout("\r\n<0-15>,<0-255>",
3523 #endif /* CONFIG_ISDN_AUDIO */
3526 * Parse and perform an AT-command-line.
3529 isdn_tty_parse_at(modem_info
* info
)
3531 atemu
*m
= &info
->emu
;
3535 #ifdef ISDN_DEBUG_AT
3536 printk(KERN_DEBUG
"AT: '%s'\n", m
->mdmcmd
);
3538 for (p
= &m
->mdmcmd
[2]; *p
;) {
3544 /* A - Accept incoming call */
3546 isdn_tty_cmd_ATA(info
);
3551 if (info
->msr
& UART_MSR_DCD
)
3553 if (info
->msr
& UART_MSR_RI
) {
3554 isdn_tty_modem_result(RESULT_NO_CARRIER
, info
);
3557 isdn_tty_getdial(++p
, ds
, sizeof ds
);
3559 if (!strlen(m
->msn
))
3560 isdn_tty_modem_result(RESULT_NO_MSN_EAZ
, info
);
3561 else if (strlen(ds
))
3562 isdn_tty_dial(ds
, info
, m
);
3567 /* E - Turn Echo on/off */
3569 switch (isdn_getnum(&p
)) {
3571 m
->mdmreg
[REG_ECHO
] &= ~BIT_ECHO
;
3574 m
->mdmreg
[REG_ECHO
] |= BIT_ECHO
;
3581 /* H - On/Off-hook */
3586 isdn_tty_on_hook(info
);
3590 isdn_tty_off_hook();
3593 isdn_tty_on_hook(info
);
3598 /* I - Information */
3600 isdn_tty_at_cout("\r\nLinux ISDN", info
);
3608 isdn_tty_report(info
);
3612 sprintf(ds
, "\r\n%d", info
->emu
.charge
);
3613 isdn_tty_at_cout(ds
, info
);
3618 #ifdef DUMMY_HAYES_AT
3621 /* only for be compilant with common scripts */
3630 if (info
->msr
& UART_MSR_DCD
)
3631 /* if B-Channel is up */
3632 isdn_tty_modem_result((m
->mdmreg
[REG_L2PROT
] == ISDN_PROTO_L2_MODEM
) ? RESULT_CONNECT
:RESULT_CONNECT64000
, info
);
3634 isdn_tty_modem_result(RESULT_NO_CARRIER
, info
);
3637 /* Q - Turn Emulator messages on/off */
3639 switch (isdn_getnum(&p
)) {
3641 m
->mdmreg
[REG_RESP
] |= BIT_RESP
;
3644 m
->mdmreg
[REG_RESP
] &= ~BIT_RESP
;
3651 /* S - Set/Get Register */
3653 if (isdn_tty_cmd_ATS(&p
, info
))
3657 /* V - Numeric or ASCII Emulator-messages */
3659 switch (isdn_getnum(&p
)) {
3661 m
->mdmreg
[REG_RESP
] |= BIT_RESPNUM
;
3664 m
->mdmreg
[REG_RESP
] &= ~BIT_RESPNUM
;
3671 /* Z - Load Registers from Profile */
3673 if (info
->msr
& UART_MSR_DCD
) {
3675 isdn_tty_on_hook(info
);
3677 isdn_tty_modem_reset_regs(info
, 1);
3682 #ifdef CONFIG_ISDN_AUDIO
3685 if (isdn_tty_cmd_PLUSF(&p
, info
))
3689 if ((!(m
->mdmreg
[REG_SI1
] & 1)) ||
3690 (m
->mdmreg
[REG_L2PROT
] == ISDN_PROTO_L2_MODEM
))
3693 if (isdn_tty_cmd_PLUSV(&p
, info
))
3696 #endif /* CONFIG_ISDN_AUDIO */
3697 case 'S': /* SUSPEND */
3699 isdn_tty_get_msnstr(ds
, &p
);
3700 isdn_tty_suspend(ds
, info
, m
);
3702 case 'R': /* RESUME */
3704 isdn_tty_get_msnstr(ds
, &p
);
3705 isdn_tty_resume(ds
, info
, m
);
3707 case 'M': /* MESSAGE */
3709 isdn_tty_send_msg(info
, m
, p
);
3717 if (isdn_tty_cmd_ATand(&p
, info
))
3724 #ifdef CONFIG_ISDN_AUDIO
3727 isdn_tty_modem_result(RESULT_OK
, info
);
3730 /* Need own toupper() because standard-toupper is not available
3733 #define my_toupper(c) (((c>='a')&&(c<='z'))?(c&0xdf):c)
3736 * Perform line-editing of AT-commands
3740 * count length of buffer
3741 * channel index to line (minor-device)
3744 isdn_tty_edit_at(const char *p
, int count
, modem_info
* info
)
3746 atemu
*m
= &info
->emu
;
3752 for (cnt
= count
; cnt
> 0; p
++, cnt
--) {
3755 if (c
== m
->mdmreg
[REG_CR
] || c
== m
->mdmreg
[REG_LF
]) {
3756 /* Separator (CR or LF) */
3757 m
->mdmcmd
[m
->mdmcmdl
] = 0;
3758 if (m
->mdmreg
[REG_ECHO
] & BIT_ECHO
) {
3761 isdn_tty_at_cout(eb
, info
);
3763 if ((m
->mdmcmdl
>= 2) && (!(strncmp(m
->mdmcmd
, "AT", 2))))
3764 isdn_tty_parse_at(info
);
3768 if (c
== m
->mdmreg
[REG_BS
] && m
->mdmreg
[REG_BS
] < 128) {
3769 /* Backspace-Function */
3770 if ((m
->mdmcmdl
> 2) || (!m
->mdmcmdl
)) {
3773 if (m
->mdmreg
[REG_ECHO
] & BIT_ECHO
)
3774 isdn_tty_at_cout("\b", info
);
3779 if (m
->mdmreg
[REG_ECHO
] & BIT_ECHO
) {
3782 isdn_tty_at_cout(eb
, info
);
3784 if (m
->mdmcmdl
< 255) {
3786 switch (m
->mdmcmdl
) {
3789 m
->mdmcmd
[m
->mdmcmdl
] = c
;
3790 m
->mdmcmd
[++m
->mdmcmdl
] = 0;
3794 /* Fall through, check for 'A' */
3797 m
->mdmcmd
[m
->mdmcmdl
] = c
;
3798 m
->mdmcmd
[++m
->mdmcmdl
] = 0;
3802 m
->mdmcmd
[m
->mdmcmdl
] = c
;
3803 m
->mdmcmd
[++m
->mdmcmdl
] = 0;
3812 * Switch all modem-channels who are online and got a valid
3813 * escape-sequence 1.5 seconds ago, to command-mode.
3814 * This function is called every second via timer-interrupt from within
3815 * timer-dispatcher isdn_timer_function()
3818 isdn_tty_modem_escape(void)
3824 for (i
= 0; i
< ISDN_MAX_CHANNELS
; i
++)
3825 if (USG_MODEM(dev
->usage
[i
]))
3826 if ((midx
= dev
->m_idx
[i
]) >= 0) {
3827 modem_info
*info
= &dev
->mdm
.info
[midx
];
3830 if ((info
->emu
.pluscount
== 3) &&
3831 time_after(jiffies
, info
->emu
.lastplus
+ PLUSWAIT2
)) {
3832 info
->emu
.pluscount
= 0;
3834 isdn_tty_modem_result(RESULT_OK
, info
);
3838 isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS
, ton
);
3842 * Put a RING-message to all modem-channels who have the RI-bit set.
3843 * This function is called every second via timer-interrupt from within
3844 * timer-dispatcher isdn_timer_function()
3847 isdn_tty_modem_ring(void)
3852 for (i
= 0; i
< ISDN_MAX_CHANNELS
; i
++) {
3853 modem_info
*info
= &dev
->mdm
.info
[i
];
3854 if (info
->msr
& UART_MSR_RI
) {
3856 isdn_tty_modem_result(RESULT_RING
, info
);
3859 isdn_timer_ctrl(ISDN_TIMER_MODEMRING
, ton
);
3863 * For all online tty's, try sending data to
3867 isdn_tty_modem_xmit(void)
3872 for (i
= 0; i
< ISDN_MAX_CHANNELS
; i
++) {
3873 modem_info
*info
= &dev
->mdm
.info
[i
];
3876 isdn_tty_senddown(info
);
3877 isdn_tty_tint(info
);
3880 isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT
, ton
);
3884 * Check all channels if we have a 'no carrier' timeout.
3885 * Timeout value is set by Register S7.
3888 isdn_tty_carrier_timeout(void)
3893 for (i
= 0; i
< ISDN_MAX_CHANNELS
; i
++) {
3894 modem_info
*info
= &dev
->mdm
.info
[i
];
3895 if (info
->dialing
) {
3896 if (info
->emu
.carrierwait
++ > info
->emu
.mdmreg
[REG_WAITC
]) {
3898 isdn_tty_modem_result(RESULT_NO_CARRIER
, info
);
3899 isdn_tty_modem_hup(info
, 1);
3905 isdn_timer_ctrl(ISDN_TIMER_CARRIER
, ton
);