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 <linux/sched/signal.h>
19 #include "isdn_common.h"
21 #ifdef CONFIG_ISDN_AUDIO
22 #include "isdn_audio.h"
24 #define VBUFX (VBUF/16)
27 #define FIX_FILE_TRANSFER
28 #define DUMMY_HAYES_AT
32 static DEFINE_MUTEX(modem_info_mutex
);
33 static int isdn_tty_edit_at(const char *, int, modem_info
*);
34 static void isdn_tty_check_esc(const u_char
*, u_char
, int, int *, u_long
*);
35 static void isdn_tty_modem_reset_regs(modem_info
*, int);
36 static void isdn_tty_cmd_ATA(modem_info
*);
37 static void isdn_tty_flush_buffer(struct tty_struct
*);
38 static void isdn_tty_modem_result(int, modem_info
*);
39 #ifdef CONFIG_ISDN_AUDIO
40 static int isdn_tty_countDLE(unsigned char *, int);
43 /* Leave this unchanged unless you know what you do! */
44 #define MODEM_PARANOIA_CHECK
45 #define MODEM_DO_RESTART
47 static int bit2si
[8] =
48 {1, 5, 7, 7, 7, 7, 7, 7};
49 static int si2bit
[8] =
50 {4, 1, 4, 4, 4, 4, 4, 4};
52 /* isdn_tty_try_read() is called from within isdn_tty_rcv_skb()
53 * to stuff incoming data directly into a tty's flip-buffer. This
54 * is done to speed up tty-receiving if the receive-queue is empty.
55 * This routine MUST be called with interrupts off.
58 * 0 = Failure, data has to be buffered and later processed by
59 * isdn_tty_readmodem().
62 isdn_tty_try_read(modem_info
*info
, struct sk_buff
*skb
)
64 struct tty_port
*port
= &info
->port
;
72 if (!(info
->mcr
& UART_MCR_RTS
))
76 #ifdef CONFIG_ISDN_AUDIO
77 + ISDN_AUDIO_SKB_DLECOUNT(skb
)
81 c
= tty_buffer_request_room(port
, len
);
85 #ifdef CONFIG_ISDN_AUDIO
86 if (ISDN_AUDIO_SKB_DLECOUNT(skb
)) {
88 unsigned char *dp
= skb
->data
;
91 tty_insert_flip_char(port
, DLE
, 0);
92 tty_insert_flip_char(port
, *dp
++, 0);
95 tty_insert_flip_char(port
, DLE
, 0);
100 tty_insert_flip_string(port
, skb
->data
, len
- 1);
101 last
= skb
->data
[len
- 1];
102 #ifdef CONFIG_ISDN_AUDIO
105 if (info
->emu
.mdmreg
[REG_CPPP
] & BIT_CPPP
)
106 tty_insert_flip_char(port
, last
, 0xFF);
108 tty_insert_flip_char(port
, last
, TTY_NORMAL
);
109 tty_flip_buffer_push(port
);
115 /* isdn_tty_readmodem() is called periodically from within timer-interrupt.
116 * It tries getting received data from the receive queue an stuff it into
117 * the tty's flip-buffer.
120 isdn_tty_readmodem(void)
128 for (i
= 0; i
< ISDN_MAX_CHANNELS
; i
++) {
129 midx
= dev
->m_idx
[i
];
133 info
= &dev
->mdm
.info
[midx
];
138 #ifdef CONFIG_ISDN_AUDIO
139 isdn_audio_eval_dtmf(info
);
140 if ((info
->vonline
& 1) && (info
->emu
.vpar
[1]))
141 isdn_audio_eval_silence(info
);
143 if (info
->mcr
& UART_MCR_RTS
) {
144 /* CISCO AsyncPPP Hack */
145 if (!(info
->emu
.mdmreg
[REG_CPPP
] & BIT_CPPP
))
146 r
= isdn_readbchan_tty(info
->isdn_driver
,
150 r
= isdn_readbchan_tty(info
->isdn_driver
,
154 tty_flip_buffer_push(&info
->port
);
165 isdn_timer_ctrl(ISDN_TIMER_MODEMREAD
, 0);
169 isdn_tty_rcv_skb(int i
, int di
, int channel
, struct sk_buff
*skb
)
173 #ifdef CONFIG_ISDN_AUDIO
178 if ((midx
= dev
->m_idx
[i
]) < 0) {
179 /* if midx is invalid, packet is not for tty */
182 info
= &dev
->mdm
.info
[midx
];
183 #ifdef CONFIG_ISDN_AUDIO
186 if ((info
->vonline
) && (!info
->emu
.vpar
[4]))
187 isdn_audio_calc_dtmf(info
, skb
->data
, skb
->len
, ifmt
);
188 if ((info
->vonline
& 1) && (info
->emu
.vpar
[1]))
189 isdn_audio_calc_silence(info
, skb
->data
, skb
->len
, ifmt
);
191 if ((info
->online
< 2)
192 #ifdef CONFIG_ISDN_AUDIO
193 && (!(info
->vonline
& 1))
196 /* If Modem not listening, drop data */
200 if (info
->emu
.mdmreg
[REG_T70
] & BIT_T70
) {
201 if (info
->emu
.mdmreg
[REG_T70
] & BIT_T70_EXT
) {
202 /* T.70 decoding: throw away the T.70 header (2 or 4 bytes) */
203 if (skb
->data
[0] == 3) /* pure data packet -> 4 byte headers */
206 if (skb
->data
[0] == 1) /* keepalive packet -> 2 byte hdr */
209 /* T.70 decoding: Simply throw away the T.70 header (4 bytes) */
210 if ((skb
->data
[0] == 1) && ((skb
->data
[1] == 0) || (skb
->data
[1] == 1)))
213 #ifdef CONFIG_ISDN_AUDIO
214 ISDN_AUDIO_SKB_DLECOUNT(skb
) = 0;
215 ISDN_AUDIO_SKB_LOCK(skb
) = 0;
216 if (info
->vonline
& 1) {
217 /* voice conversion/compression */
218 switch (info
->emu
.vpar
[3]) {
223 * Since compressed data takes less
224 * space, we can overwrite the buffer.
226 skb_trim(skb
, isdn_audio_xlaw2adpcm(info
->adpcmr
,
235 isdn_audio_ulaw2alaw(skb
->data
, skb
->len
);
240 isdn_audio_alaw2ulaw(skb
->data
, skb
->len
);
243 ISDN_AUDIO_SKB_DLECOUNT(skb
) =
244 isdn_tty_countDLE(skb
->data
, skb
->len
);
246 #ifdef CONFIG_ISDN_TTY_FAX
248 if (info
->faxonline
& 2) {
249 isdn_tty_fax_bitorder(info
, skb
);
250 ISDN_AUDIO_SKB_DLECOUNT(skb
) =
251 isdn_tty_countDLE(skb
->data
, skb
->len
);
256 /* Try to deliver directly via tty-buf if queue is empty */
257 spin_lock_irqsave(&info
->readlock
, flags
);
258 if (skb_queue_empty(&dev
->drv
[di
]->rpqueue
[channel
]))
259 if (isdn_tty_try_read(info
, skb
)) {
260 spin_unlock_irqrestore(&info
->readlock
, flags
);
263 /* Direct deliver failed or queue wasn't empty.
264 * Queue up for later dequeueing via timer-irq.
266 __skb_queue_tail(&dev
->drv
[di
]->rpqueue
[channel
], skb
);
267 dev
->drv
[di
]->rcvcount
[channel
] +=
269 #ifdef CONFIG_ISDN_AUDIO
270 + ISDN_AUDIO_SKB_DLECOUNT(skb
)
273 spin_unlock_irqrestore(&info
->readlock
, flags
);
274 /* Schedule dequeuing */
275 if ((dev
->modempoll
) && (info
->rcvsched
))
276 isdn_timer_ctrl(ISDN_TIMER_MODEMREAD
, 1);
281 isdn_tty_cleanup_xmit(modem_info
*info
)
283 skb_queue_purge(&info
->xmit_queue
);
284 #ifdef CONFIG_ISDN_AUDIO
285 skb_queue_purge(&info
->dtmf_queue
);
290 isdn_tty_tint(modem_info
*info
)
292 struct sk_buff
*skb
= skb_dequeue(&info
->xmit_queue
);
298 if ((slen
= isdn_writebuf_skb_stub(info
->isdn_driver
,
299 info
->isdn_channel
, 1, skb
)) == len
) {
300 struct tty_struct
*tty
= info
->port
.tty
;
301 info
->send_outstanding
++;
302 info
->msr
&= ~UART_MSR_CTS
;
303 info
->lsr
&= ~UART_LSR_TEMT
;
308 /* Error: no channel, already shutdown, or wrong parameter */
312 skb_queue_head(&info
->xmit_queue
, skb
);
315 #ifdef CONFIG_ISDN_AUDIO
317 isdn_tty_countDLE(unsigned char *buf
, int len
)
327 /* This routine is called from within isdn_tty_write() to perform
328 * DLE-decoding when sending audio-data.
331 isdn_tty_handleDLEdown(modem_info
*info
, atemu
*m
, int len
)
333 unsigned char *p
= &info
->port
.xmit_buf
[info
->xmit_count
];
343 memmove(p
, p
+ 1, len
- 1);
354 #ifdef ISDN_DEBUG_MODEM_VOICE
356 "DLEdown: got DLE-DC4, send DLE-ETX on ttyI%d\n",
359 isdn_tty_at_cout("\020\003", info
);
360 if (!info
->vonline
) {
361 #ifdef ISDN_DEBUG_MODEM_VOICE
363 "DLEdown: send VCON on ttyI%d\n",
366 isdn_tty_at_cout("\r\nVCON\r\n", info
);
373 memmove(p
, p
+ 1, len
- 1);
387 printk(KERN_WARNING
"isdn_tty: len<0 in DLEdown\n");
393 /* This routine is called from within isdn_tty_write() when receiving
394 * audio-data. It interrupts receiving, if an character other than
398 isdn_tty_end_vrx(const char *buf
, int c
)
404 if ((ch
!= 0x11) && (ch
!= 0x13))
411 static int voice_cf
[7] =
412 {0, 0, 4, 3, 2, 0, 0};
414 #endif /* CONFIG_ISDN_AUDIO */
416 /* isdn_tty_senddown() is called either directly from within isdn_tty_write()
417 * or via timer-interrupt from within isdn_tty_modem_xmit(). It pulls
418 * outgoing data from the tty's xmit-buffer, handles voice-decompression or
419 * T.70 if necessary, and finally queues it up for sending via isdn_tty_tint.
422 isdn_tty_senddown(modem_info
*info
)
426 #ifdef CONFIG_ISDN_AUDIO
431 #ifdef CONFIG_ISDN_AUDIO
432 if (info
->vonline
& 4) {
434 if (!info
->vonline
) {
435 #ifdef ISDN_DEBUG_MODEM_VOICE
437 "senddown: send VCON on ttyI%d\n",
440 isdn_tty_at_cout("\r\nVCON\r\n", info
);
444 if (!(buflen
= info
->xmit_count
))
446 if ((info
->emu
.mdmreg
[REG_CTS
] & BIT_CTS
) != 0)
447 info
->msr
&= ~UART_MSR_CTS
;
448 info
->lsr
&= ~UART_LSR_TEMT
;
449 /* info->xmit_count is modified here and in isdn_tty_write().
450 * So we return here if isdn_tty_write() is in the
453 atomic_inc(&info
->xmit_lock
);
454 if (!(atomic_dec_and_test(&info
->xmit_lock
)))
456 if (info
->isdn_driver
< 0) {
457 info
->xmit_count
= 0;
460 skb_res
= dev
->drv
[info
->isdn_driver
]->interface
->hl_hdrlen
+ 4;
461 #ifdef CONFIG_ISDN_AUDIO
462 if (info
->vonline
& 2)
463 audio_len
= buflen
* voice_cf
[info
->emu
.vpar
[3]];
466 skb
= dev_alloc_skb(skb_res
+ buflen
+ audio_len
);
468 skb
= dev_alloc_skb(skb_res
+ buflen
);
472 "isdn_tty: Out of memory in ttyI%d senddown\n",
476 skb_reserve(skb
, skb_res
);
477 skb_put_data(skb
, info
->port
.xmit_buf
, buflen
);
478 info
->xmit_count
= 0;
479 #ifdef CONFIG_ISDN_AUDIO
480 if (info
->vonline
& 2) {
481 /* For now, ifmt is fixed to 1 (alaw), since this
482 * is used with ISDN everywhere in the world, except
483 * US, Canada and Japan.
484 * Later, when US-ISDN protocols are implemented,
485 * this setting will depend on the D-channel protocol.
489 /* voice conversion/decompression */
490 switch (info
->emu
.vpar
[3]) {
494 /* adpcm, compatible to ZyXel 1496 modem
495 * with ROM revision 6.01
497 audio_len
= isdn_audio_adpcm2xlaw(info
->adpcms
,
500 skb_put(skb
, audio_len
),
502 skb_pull(skb
, buflen
);
503 skb_trim(skb
, audio_len
);
508 isdn_audio_alaw2ulaw(skb
->data
,
514 isdn_audio_ulaw2alaw(skb
->data
,
519 #endif /* CONFIG_ISDN_AUDIO */
520 if (info
->emu
.mdmreg
[REG_T70
] & BIT_T70
) {
521 /* Add T.70 simplified header */
522 if (info
->emu
.mdmreg
[REG_T70
] & BIT_T70_EXT
)
523 memcpy(skb_push(skb
, 2), "\1\0", 2);
525 memcpy(skb_push(skb
, 4), "\1\0\1\0", 4);
527 skb_queue_tail(&info
->xmit_queue
, skb
);
530 /************************************************************
534 * mostly "stolen" from original Linux-serial.c and friends.
536 ************************************************************/
538 /* The next routine is called once from within timer-interrupt
539 * triggered within isdn_tty_modem_ncarrier(). It calls
540 * isdn_tty_modem_result() to stuff a "NO CARRIER" Message
541 * into the tty's buffer.
544 isdn_tty_modem_do_ncarrier(struct timer_list
*t
)
546 modem_info
*info
= from_timer(info
, t
, nc_timer
);
547 isdn_tty_modem_result(RESULT_NO_CARRIER
, info
);
550 /* Next routine is called, whenever the DTR-signal is raised.
551 * It checks the ncarrier-flag, and triggers the above routine
552 * when necessary. The ncarrier-flag is set, whenever DTR goes
556 isdn_tty_modem_ncarrier(modem_info
*info
)
558 if (info
->ncarrier
) {
559 info
->nc_timer
.expires
= jiffies
+ HZ
;
560 add_timer(&info
->nc_timer
);
565 * return the usage calculated by si and layer 2 protocol
568 isdn_calc_usage(int si
, int l2
)
570 int usg
= ISDN_USAGE_MODEM
;
572 #ifdef CONFIG_ISDN_AUDIO
575 case ISDN_PROTO_L2_MODEM
:
576 usg
= ISDN_USAGE_MODEM
;
578 #ifdef CONFIG_ISDN_TTY_FAX
579 case ISDN_PROTO_L2_FAX
:
580 usg
= ISDN_USAGE_FAX
;
583 case ISDN_PROTO_L2_TRANS
:
585 usg
= ISDN_USAGE_VOICE
;
593 /* isdn_tty_dial() performs dialing of a tty an the necessary
594 * setup of the lower levels before that.
597 isdn_tty_dial(char *n
, modem_info
*info
, atemu
*m
)
599 int usg
= ISDN_USAGE_MODEM
;
601 int l2
= m
->mdmreg
[REG_L2PROT
];
607 for (j
= 7; j
>= 0; j
--)
608 if (m
->mdmreg
[REG_SI1
] & (1 << j
)) {
612 usg
= isdn_calc_usage(si
, l2
);
613 #ifdef CONFIG_ISDN_AUDIO
615 (l2
!= ISDN_PROTO_L2_MODEM
)
616 #ifdef CONFIG_ISDN_TTY_FAX
617 && (l2
!= ISDN_PROTO_L2_FAX
)
620 l2
= ISDN_PROTO_L2_TRANS
;
621 usg
= ISDN_USAGE_VOICE
;
624 m
->mdmreg
[REG_SI1I
] = si2bit
[si
];
625 spin_lock_irqsave(&dev
->lock
, flags
);
626 i
= isdn_get_free_channel(usg
, l2
, m
->mdmreg
[REG_L3PROT
], -1, -1, m
->msn
);
628 spin_unlock_irqrestore(&dev
->lock
, flags
);
629 isdn_tty_modem_result(RESULT_NO_DIALTONE
, info
);
631 info
->isdn_driver
= dev
->drvmap
[i
];
632 info
->isdn_channel
= dev
->chanmap
[i
];
634 dev
->m_idx
[i
] = info
->line
;
635 dev
->usage
[i
] |= ISDN_USAGE_OUTGOING
;
637 strcpy(info
->last_num
, n
);
639 spin_unlock_irqrestore(&dev
->lock
, flags
);
640 cmd
.driver
= info
->isdn_driver
;
641 cmd
.arg
= info
->isdn_channel
;
642 cmd
.command
= ISDN_CMD_CLREAZ
;
644 strcpy(cmd
.parm
.num
, isdn_map_eaz2msn(m
->msn
, info
->isdn_driver
));
645 cmd
.driver
= info
->isdn_driver
;
646 cmd
.command
= ISDN_CMD_SETEAZ
;
648 cmd
.driver
= info
->isdn_driver
;
649 cmd
.command
= ISDN_CMD_SETL2
;
651 cmd
.arg
= info
->isdn_channel
+ (l2
<< 8);
653 cmd
.driver
= info
->isdn_driver
;
654 cmd
.command
= ISDN_CMD_SETL3
;
655 cmd
.arg
= info
->isdn_channel
+ (m
->mdmreg
[REG_L3PROT
] << 8);
656 #ifdef CONFIG_ISDN_TTY_FAX
657 if (l2
== ISDN_PROTO_L2_FAX
) {
658 cmd
.parm
.fax
= info
->fax
;
659 info
->fax
->direction
= ISDN_TTY_FAX_CONN_OUT
;
663 cmd
.driver
= info
->isdn_driver
;
664 cmd
.arg
= info
->isdn_channel
;
665 sprintf(cmd
.parm
.setup
.phone
, "%s", n
);
666 sprintf(cmd
.parm
.setup
.eazmsn
, "%s",
667 isdn_map_eaz2msn(m
->msn
, info
->isdn_driver
));
668 cmd
.parm
.setup
.si1
= si
;
669 cmd
.parm
.setup
.si2
= m
->mdmreg
[REG_SI2
];
670 cmd
.command
= ISDN_CMD_DIAL
;
672 info
->emu
.carrierwait
= 0;
673 strcpy(dev
->num
[i
], n
);
676 isdn_timer_ctrl(ISDN_TIMER_CARRIER
, 1);
680 /* isdn_tty_hangup() disassociates a tty from the real
681 * ISDN-line (hangup). The usage-status is cleared
682 * and some cleanup is done also.
685 isdn_tty_modem_hup(modem_info
*info
, int local
)
693 di
= info
->isdn_driver
;
694 ch
= info
->isdn_channel
;
695 if (di
< 0 || ch
< 0)
698 info
->isdn_driver
= -1;
699 info
->isdn_channel
= -1;
701 #ifdef ISDN_DEBUG_MODEM_HUP
702 printk(KERN_DEBUG
"Mhup ttyI%d\n", info
->line
);
705 isdn_tty_flush_buffer(info
->port
.tty
);
707 info
->last_lhup
= local
;
709 isdn_tty_modem_result(RESULT_NO_CARRIER
, info
);
711 #ifdef CONFIG_ISDN_AUDIO
713 #ifdef CONFIG_ISDN_TTY_FAX
715 info
->fax
->phase
= ISDN_FAX_PHASE_IDLE
;
717 info
->emu
.vpar
[4] = 0;
718 info
->emu
.vpar
[5] = 8;
719 kfree(info
->dtmf_state
);
720 info
->dtmf_state
= NULL
;
721 kfree(info
->silence_state
);
722 info
->silence_state
= NULL
;
728 if ((info
->msr
& UART_MSR_RI
) &&
729 (info
->emu
.mdmreg
[REG_RUNG
] & BIT_RUNG
))
730 isdn_tty_modem_result(RESULT_RUNG
, info
);
731 info
->msr
&= ~(UART_MSR_DCD
| UART_MSR_RI
);
732 info
->lsr
|= UART_LSR_TEMT
;
736 cmd
.command
= ISDN_CMD_HANGUP
;
741 isdn_all_eaz(di
, ch
);
742 info
->emu
.mdmreg
[REG_RINGCNT
] = 0;
743 isdn_free_channel(di
, ch
, 0);
745 if (info
->drv_index
>= 0) {
746 dev
->m_idx
[info
->drv_index
] = -1;
747 info
->drv_index
= -1;
752 * Begin of a CAPI like interface, currently used only for
753 * supplementary service (CAPI 2.0 part III)
755 #include <linux/isdn/capicmd.h>
756 #include <linux/module.h>
759 isdn_tty_capi_facility(capi_msg
*cm
) {
760 return (-1); /* dummy */
763 /* isdn_tty_suspend() tries to suspend the current tty connection
766 isdn_tty_suspend(char *id
, modem_info
*info
, atemu
*m
)
775 #ifdef ISDN_DEBUG_MODEM_SERVICES
776 printk(KERN_DEBUG
"Msusp ttyI%d\n", info
->line
);
779 if ((info
->isdn_driver
>= 0)) {
780 cmd
.parm
.cmsg
.Length
= l
+ 18;
781 cmd
.parm
.cmsg
.Command
= CAPI_FACILITY
;
782 cmd
.parm
.cmsg
.Subcommand
= CAPI_REQ
;
783 cmd
.parm
.cmsg
.adr
.Controller
= info
->isdn_driver
+ 1;
784 cmd
.parm
.cmsg
.para
[0] = 3; /* 16 bit 0x0003 suplementary service */
785 cmd
.parm
.cmsg
.para
[1] = 0;
786 cmd
.parm
.cmsg
.para
[2] = l
+ 3;
787 cmd
.parm
.cmsg
.para
[3] = 4; /* 16 bit 0x0004 Suspend */
788 cmd
.parm
.cmsg
.para
[4] = 0;
789 cmd
.parm
.cmsg
.para
[5] = l
;
790 strncpy(&cmd
.parm
.cmsg
.para
[6], id
, l
);
791 cmd
.command
= CAPI_PUT_MESSAGE
;
792 cmd
.driver
= info
->isdn_driver
;
793 cmd
.arg
= info
->isdn_channel
;
798 /* isdn_tty_resume() tries to resume a suspended call
799 * setup of the lower levels before that. unfortunately here is no
800 * checking for compatibility of used protocols implemented by Q931
801 * It does the same things like isdn_tty_dial, the last command
802 * is different, may be we can merge it.
806 isdn_tty_resume(char *id
, modem_info
*info
, atemu
*m
)
808 int usg
= ISDN_USAGE_MODEM
;
810 int l2
= m
->mdmreg
[REG_L2PROT
];
818 for (j
= 7; j
>= 0; j
--)
819 if (m
->mdmreg
[REG_SI1
] & (1 << j
)) {
823 usg
= isdn_calc_usage(si
, l2
);
824 #ifdef CONFIG_ISDN_AUDIO
826 (l2
!= ISDN_PROTO_L2_MODEM
)
827 #ifdef CONFIG_ISDN_TTY_FAX
828 && (l2
!= ISDN_PROTO_L2_FAX
)
831 l2
= ISDN_PROTO_L2_TRANS
;
832 usg
= ISDN_USAGE_VOICE
;
835 m
->mdmreg
[REG_SI1I
] = si2bit
[si
];
836 spin_lock_irqsave(&dev
->lock
, flags
);
837 i
= isdn_get_free_channel(usg
, l2
, m
->mdmreg
[REG_L3PROT
], -1, -1, m
->msn
);
839 spin_unlock_irqrestore(&dev
->lock
, flags
);
840 isdn_tty_modem_result(RESULT_NO_DIALTONE
, info
);
842 info
->isdn_driver
= dev
->drvmap
[i
];
843 info
->isdn_channel
= dev
->chanmap
[i
];
845 dev
->m_idx
[i
] = info
->line
;
846 dev
->usage
[i
] |= ISDN_USAGE_OUTGOING
;
848 // strcpy(info->last_num, n);
850 spin_unlock_irqrestore(&dev
->lock
, flags
);
851 cmd
.driver
= info
->isdn_driver
;
852 cmd
.arg
= info
->isdn_channel
;
853 cmd
.command
= ISDN_CMD_CLREAZ
;
855 strcpy(cmd
.parm
.num
, isdn_map_eaz2msn(m
->msn
, info
->isdn_driver
));
856 cmd
.driver
= info
->isdn_driver
;
857 cmd
.command
= ISDN_CMD_SETEAZ
;
859 cmd
.driver
= info
->isdn_driver
;
860 cmd
.command
= ISDN_CMD_SETL2
;
862 cmd
.arg
= info
->isdn_channel
+ (l2
<< 8);
864 cmd
.driver
= info
->isdn_driver
;
865 cmd
.command
= ISDN_CMD_SETL3
;
866 cmd
.arg
= info
->isdn_channel
+ (m
->mdmreg
[REG_L3PROT
] << 8);
868 cmd
.driver
= info
->isdn_driver
;
869 cmd
.arg
= info
->isdn_channel
;
870 cmd
.parm
.cmsg
.Length
= l
+ 18;
871 cmd
.parm
.cmsg
.Command
= CAPI_FACILITY
;
872 cmd
.parm
.cmsg
.Subcommand
= CAPI_REQ
;
873 cmd
.parm
.cmsg
.adr
.Controller
= info
->isdn_driver
+ 1;
874 cmd
.parm
.cmsg
.para
[0] = 3; /* 16 bit 0x0003 suplementary service */
875 cmd
.parm
.cmsg
.para
[1] = 0;
876 cmd
.parm
.cmsg
.para
[2] = l
+ 3;
877 cmd
.parm
.cmsg
.para
[3] = 5; /* 16 bit 0x0005 Resume */
878 cmd
.parm
.cmsg
.para
[4] = 0;
879 cmd
.parm
.cmsg
.para
[5] = l
;
880 strncpy(&cmd
.parm
.cmsg
.para
[6], id
, l
);
881 cmd
.command
= CAPI_PUT_MESSAGE
;
883 // strcpy(dev->num[i], n);
886 isdn_timer_ctrl(ISDN_TIMER_CARRIER
, 1);
890 /* isdn_tty_send_msg() sends a message to a HL driver
891 * This is used for hybrid modem cards to send AT commands to it
895 isdn_tty_send_msg(modem_info
*info
, atemu
*m
, char *msg
)
897 int usg
= ISDN_USAGE_MODEM
;
899 int l2
= m
->mdmreg
[REG_L2PROT
];
906 l
= min(strlen(msg
), sizeof(cmd
.parm
) - sizeof(cmd
.parm
.cmsg
)
907 + sizeof(cmd
.parm
.cmsg
.para
) - 2);
910 isdn_tty_modem_result(RESULT_ERROR
, info
);
913 for (j
= 7; j
>= 0; j
--)
914 if (m
->mdmreg
[REG_SI1
] & (1 << j
)) {
918 usg
= isdn_calc_usage(si
, l2
);
919 #ifdef CONFIG_ISDN_AUDIO
921 (l2
!= ISDN_PROTO_L2_MODEM
)
922 #ifdef CONFIG_ISDN_TTY_FAX
923 && (l2
!= ISDN_PROTO_L2_FAX
)
926 l2
= ISDN_PROTO_L2_TRANS
;
927 usg
= ISDN_USAGE_VOICE
;
930 m
->mdmreg
[REG_SI1I
] = si2bit
[si
];
931 spin_lock_irqsave(&dev
->lock
, flags
);
932 i
= isdn_get_free_channel(usg
, l2
, m
->mdmreg
[REG_L3PROT
], -1, -1, m
->msn
);
934 spin_unlock_irqrestore(&dev
->lock
, flags
);
935 isdn_tty_modem_result(RESULT_NO_DIALTONE
, info
);
937 info
->isdn_driver
= dev
->drvmap
[i
];
938 info
->isdn_channel
= dev
->chanmap
[i
];
940 dev
->m_idx
[i
] = info
->line
;
941 dev
->usage
[i
] |= ISDN_USAGE_OUTGOING
;
944 spin_unlock_irqrestore(&dev
->lock
, flags
);
945 cmd
.driver
= info
->isdn_driver
;
946 cmd
.arg
= info
->isdn_channel
;
947 cmd
.command
= ISDN_CMD_CLREAZ
;
949 strcpy(cmd
.parm
.num
, isdn_map_eaz2msn(m
->msn
, info
->isdn_driver
));
950 cmd
.driver
= info
->isdn_driver
;
951 cmd
.command
= ISDN_CMD_SETEAZ
;
953 cmd
.driver
= info
->isdn_driver
;
954 cmd
.command
= ISDN_CMD_SETL2
;
956 cmd
.arg
= info
->isdn_channel
+ (l2
<< 8);
958 cmd
.driver
= info
->isdn_driver
;
959 cmd
.command
= ISDN_CMD_SETL3
;
960 cmd
.arg
= info
->isdn_channel
+ (m
->mdmreg
[REG_L3PROT
] << 8);
962 cmd
.driver
= info
->isdn_driver
;
963 cmd
.arg
= info
->isdn_channel
;
964 cmd
.parm
.cmsg
.Length
= l
+ 14;
965 cmd
.parm
.cmsg
.Command
= CAPI_MANUFACTURER
;
966 cmd
.parm
.cmsg
.Subcommand
= CAPI_REQ
;
967 cmd
.parm
.cmsg
.adr
.Controller
= info
->isdn_driver
+ 1;
968 cmd
.parm
.cmsg
.para
[0] = l
+ 1;
969 strncpy(&cmd
.parm
.cmsg
.para
[1], msg
, l
);
970 cmd
.parm
.cmsg
.para
[l
+ 1] = 0xd;
971 cmd
.command
= CAPI_PUT_MESSAGE
;
972 /* info->dialing = 1;
973 strcpy(dev->num[i], n);
981 isdn_tty_paranoia_check(modem_info
*info
, char *name
, const char *routine
)
983 #ifdef MODEM_PARANOIA_CHECK
985 printk(KERN_WARNING
"isdn_tty: null info_struct for %s in %s\n",
989 if (info
->magic
!= ISDN_ASYNC_MAGIC
) {
990 printk(KERN_WARNING
"isdn_tty: bad magic for modem struct %s in %s\n",
999 * This routine is called to set the UART divisor registers to match
1000 * the specified baud rate for a serial port.
1003 isdn_tty_change_speed(modem_info
*info
)
1005 struct tty_port
*port
= &info
->port
;
1013 cflag
= port
->tty
->termios
.c_cflag
;
1015 quot
= i
= cflag
& CBAUD
;
1019 port
->tty
->termios
.c_cflag
&= ~CBAUDEX
;
1024 info
->mcr
|= UART_MCR_DTR
;
1025 isdn_tty_modem_ncarrier(info
);
1027 info
->mcr
&= ~UART_MCR_DTR
;
1028 if (info
->emu
.mdmreg
[REG_DTRHUP
] & BIT_DTRHUP
) {
1029 #ifdef ISDN_DEBUG_MODEM_HUP
1030 printk(KERN_DEBUG
"Mhup in changespeed\n");
1034 isdn_tty_modem_reset_regs(info
, 0);
1035 isdn_tty_modem_hup(info
, 1);
1039 /* byte size and parity */
1040 cval
= cflag
& (CSIZE
| CSTOPB
);
1043 cval
|= UART_LCR_PARITY
;
1044 if (!(cflag
& PARODD
))
1045 cval
|= UART_LCR_EPAR
;
1047 tty_port_set_check_carrier(port
, ~cflag
& CLOCAL
);
1051 isdn_tty_startup(modem_info
*info
)
1053 if (tty_port_initialized(&info
->port
))
1055 isdn_lock_drivers();
1056 #ifdef ISDN_DEBUG_MODEM_OPEN
1057 printk(KERN_DEBUG
"starting up ttyi%d ...\n", info
->line
);
1060 * Now, initialize the UART
1062 info
->mcr
= UART_MCR_DTR
| UART_MCR_RTS
| UART_MCR_OUT2
;
1064 clear_bit(TTY_IO_ERROR
, &info
->port
.tty
->flags
);
1066 * and set the speed of the serial port
1068 isdn_tty_change_speed(info
);
1070 tty_port_set_initialized(&info
->port
, 1);
1071 info
->msr
|= (UART_MSR_DSR
| UART_MSR_CTS
);
1072 info
->send_outstanding
= 0;
1077 * This routine will shutdown a serial port; interrupts are disabled, and
1078 * DTR is dropped if the hangup on close termio flag is on.
1081 isdn_tty_shutdown(modem_info
*info
)
1083 if (!tty_port_initialized(&info
->port
))
1085 #ifdef ISDN_DEBUG_MODEM_OPEN
1086 printk(KERN_DEBUG
"Shutting down isdnmodem port %d ....\n", info
->line
);
1088 isdn_unlock_drivers();
1089 info
->msr
&= ~UART_MSR_RI
;
1090 if (!info
->port
.tty
|| (info
->port
.tty
->termios
.c_cflag
& HUPCL
)) {
1091 info
->mcr
&= ~(UART_MCR_DTR
| UART_MCR_RTS
);
1092 if (info
->emu
.mdmreg
[REG_DTRHUP
] & BIT_DTRHUP
) {
1093 isdn_tty_modem_reset_regs(info
, 0);
1094 #ifdef ISDN_DEBUG_MODEM_HUP
1095 printk(KERN_DEBUG
"Mhup in isdn_tty_shutdown\n");
1097 isdn_tty_modem_hup(info
, 1);
1101 set_bit(TTY_IO_ERROR
, &info
->port
.tty
->flags
);
1103 tty_port_set_initialized(&info
->port
, 0);
1106 /* isdn_tty_write() is the main send-routine. It is called from the upper
1107 * levels within the kernel to perform sending data. Depending on the
1108 * online-flag it either directs output to the at-command-interpreter or
1109 * to the lower level. Additional tasks done here:
1110 * - If online, check for escape-sequence (+++)
1111 * - If sending audio-data, call isdn_tty_DLEdown() to parse DLE-codes.
1112 * - If receiving audio-data, call isdn_tty_end_vrx() to abort if needed.
1113 * - If dialing, abort dial.
1116 isdn_tty_write(struct tty_struct
*tty
, const u_char
*buf
, int count
)
1120 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1121 atemu
*m
= &info
->emu
;
1123 if (isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_write"))
1125 /* See isdn_tty_senddown() */
1126 atomic_inc(&info
->xmit_lock
);
1129 if (c
> info
->xmit_size
- info
->xmit_count
)
1130 c
= info
->xmit_size
- info
->xmit_count
;
1131 if (info
->isdn_driver
>= 0 && c
> dev
->drv
[info
->isdn_driver
]->maxbufsize
)
1132 c
= dev
->drv
[info
->isdn_driver
]->maxbufsize
;
1135 if ((info
->online
> 1)
1136 #ifdef CONFIG_ISDN_AUDIO
1137 || (info
->vonline
& 3)
1140 #ifdef CONFIG_ISDN_AUDIO
1143 isdn_tty_check_esc(buf
, m
->mdmreg
[REG_ESC
], c
,
1146 memcpy(&info
->port
.xmit_buf
[info
->xmit_count
], buf
, c
);
1147 #ifdef CONFIG_ISDN_AUDIO
1148 if (info
->vonline
) {
1149 int cc
= isdn_tty_handleDLEdown(info
, m
, c
);
1150 if (info
->vonline
& 2) {
1152 /* If DLE decoding results in zero-transmit, but
1153 * c originally was non-zero, do a wakeup.
1156 info
->msr
|= UART_MSR_CTS
;
1157 info
->lsr
|= UART_LSR_TEMT
;
1159 info
->xmit_count
+= cc
;
1161 if ((info
->vonline
& 3) == 1) {
1162 /* Do NOT handle Ctrl-Q or Ctrl-S
1163 * when in full-duplex audio mode.
1165 if (isdn_tty_end_vrx(buf
, c
)) {
1166 info
->vonline
&= ~1;
1167 #ifdef ISDN_DEBUG_MODEM_VOICE
1169 "got !^Q/^S, send DLE-ETX,VCON on ttyI%d\n",
1172 isdn_tty_at_cout("\020\003\r\nVCON\r\n", info
);
1176 if (TTY_IS_FCLASS1(info
)) {
1177 int cc
= isdn_tty_handleDLEdown(info
, m
, c
);
1179 if (info
->vonline
& 4) { /* ETX seen */
1182 c
.command
= ISDN_CMD_FAXCMD
;
1183 c
.driver
= info
->isdn_driver
;
1184 c
.arg
= info
->isdn_channel
;
1185 c
.parm
.aux
.cmd
= ISDN_FAX_CLASS1_CTRL
;
1186 c
.parm
.aux
.subcmd
= ETX
;
1190 #ifdef ISDN_DEBUG_MODEM_VOICE
1191 printk(KERN_DEBUG
"fax dle cc/c %d/%d\n", cc
, c
);
1193 info
->xmit_count
+= cc
;
1196 info
->xmit_count
+= c
;
1198 info
->msr
|= UART_MSR_CTS
;
1199 info
->lsr
|= UART_LSR_TEMT
;
1200 if (info
->dialing
) {
1202 #ifdef ISDN_DEBUG_MODEM_HUP
1203 printk(KERN_DEBUG
"Mhup in isdn_tty_write\n");
1205 isdn_tty_modem_result(RESULT_NO_CARRIER
, info
);
1206 isdn_tty_modem_hup(info
, 1);
1208 c
= isdn_tty_edit_at(buf
, c
, info
);
1214 atomic_dec(&info
->xmit_lock
);
1215 if ((info
->xmit_count
) || !skb_queue_empty(&info
->xmit_queue
)) {
1216 if (m
->mdmreg
[REG_DXMT
] & BIT_DXMT
) {
1217 isdn_tty_senddown(info
);
1218 isdn_tty_tint(info
);
1220 isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT
, 1);
1226 isdn_tty_write_room(struct tty_struct
*tty
)
1228 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1231 if (isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_write_room"))
1234 return info
->xmit_size
;
1235 ret
= info
->xmit_size
- info
->xmit_count
;
1236 return (ret
< 0) ? 0 : ret
;
1240 isdn_tty_chars_in_buffer(struct tty_struct
*tty
)
1242 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1244 if (isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_chars_in_buffer"))
1248 return (info
->xmit_count
);
1252 isdn_tty_flush_buffer(struct tty_struct
*tty
)
1259 info
= (modem_info
*) tty
->driver_data
;
1260 if (isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_flush_buffer")) {
1263 isdn_tty_cleanup_xmit(info
);
1264 info
->xmit_count
= 0;
1269 isdn_tty_flush_chars(struct tty_struct
*tty
)
1271 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1273 if (isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_flush_chars"))
1275 if ((info
->xmit_count
) || !skb_queue_empty(&info
->xmit_queue
))
1276 isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT
, 1);
1280 * ------------------------------------------------------------
1281 * isdn_tty_throttle()
1283 * This routine is called by the upper-layer tty layer to signal that
1284 * incoming characters should be throttled.
1285 * ------------------------------------------------------------
1288 isdn_tty_throttle(struct tty_struct
*tty
)
1290 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1292 if (isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_throttle"))
1295 info
->x_char
= STOP_CHAR(tty
);
1296 info
->mcr
&= ~UART_MCR_RTS
;
1300 isdn_tty_unthrottle(struct tty_struct
*tty
)
1302 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1304 if (isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_unthrottle"))
1310 info
->x_char
= START_CHAR(tty
);
1312 info
->mcr
|= UART_MCR_RTS
;
1316 * ------------------------------------------------------------
1317 * isdn_tty_ioctl() and friends
1318 * ------------------------------------------------------------
1322 * isdn_tty_get_lsr_info - get line status register info
1324 * Purpose: Let user call ioctl() to get info when the UART physically
1325 * is emptied. On bus types like RS485, the transmitter must
1326 * release the bus after transmitting. This must be done when
1327 * the transmit shift register is empty, not be done when the
1328 * transmit holding register is empty. This functionality
1329 * allows RS485 driver to be written in user space.
1332 isdn_tty_get_lsr_info(modem_info
*info
, uint __user
*value
)
1338 result
= ((status
& UART_LSR_TEMT
) ? TIOCSER_TEMT
: 0);
1339 return put_user(result
, value
);
1344 isdn_tty_tiocmget(struct tty_struct
*tty
)
1346 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1347 u_char control
, status
;
1349 if (isdn_tty_paranoia_check(info
, tty
->name
, __func__
))
1351 if (tty_io_error(tty
))
1354 mutex_lock(&modem_info_mutex
);
1355 #ifdef ISDN_DEBUG_MODEM_IOCTL
1356 printk(KERN_DEBUG
"ttyI%d ioctl TIOCMGET\n", info
->line
);
1359 control
= info
->mcr
;
1361 mutex_unlock(&modem_info_mutex
);
1362 return ((control
& UART_MCR_RTS
) ? TIOCM_RTS
: 0)
1363 | ((control
& UART_MCR_DTR
) ? TIOCM_DTR
: 0)
1364 | ((status
& UART_MSR_DCD
) ? TIOCM_CAR
: 0)
1365 | ((status
& UART_MSR_RI
) ? TIOCM_RNG
: 0)
1366 | ((status
& UART_MSR_DSR
) ? TIOCM_DSR
: 0)
1367 | ((status
& UART_MSR_CTS
) ? TIOCM_CTS
: 0);
1371 isdn_tty_tiocmset(struct tty_struct
*tty
,
1372 unsigned int set
, unsigned int clear
)
1374 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1376 if (isdn_tty_paranoia_check(info
, tty
->name
, __func__
))
1378 if (tty_io_error(tty
))
1381 #ifdef ISDN_DEBUG_MODEM_IOCTL
1382 printk(KERN_DEBUG
"ttyI%d ioctl TIOCMxxx: %x %x\n", info
->line
, set
, clear
);
1385 mutex_lock(&modem_info_mutex
);
1386 if (set
& TIOCM_RTS
)
1387 info
->mcr
|= UART_MCR_RTS
;
1388 if (set
& TIOCM_DTR
) {
1389 info
->mcr
|= UART_MCR_DTR
;
1390 isdn_tty_modem_ncarrier(info
);
1393 if (clear
& TIOCM_RTS
)
1394 info
->mcr
&= ~UART_MCR_RTS
;
1395 if (clear
& TIOCM_DTR
) {
1396 info
->mcr
&= ~UART_MCR_DTR
;
1397 if (info
->emu
.mdmreg
[REG_DTRHUP
] & BIT_DTRHUP
) {
1398 isdn_tty_modem_reset_regs(info
, 0);
1399 #ifdef ISDN_DEBUG_MODEM_HUP
1400 printk(KERN_DEBUG
"Mhup in TIOCMSET\n");
1404 isdn_tty_modem_hup(info
, 1);
1407 mutex_unlock(&modem_info_mutex
);
1412 isdn_tty_ioctl(struct tty_struct
*tty
, uint cmd
, ulong arg
)
1414 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1417 if (isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_ioctl"))
1419 if (tty_io_error(tty
))
1422 case TCSBRK
: /* SVID version: non-zero arg --> no break */
1423 #ifdef ISDN_DEBUG_MODEM_IOCTL
1424 printk(KERN_DEBUG
"ttyI%d ioctl TCSBRK\n", info
->line
);
1426 retval
= tty_check_change(tty
);
1429 tty_wait_until_sent(tty
, 0);
1431 case TCSBRKP
: /* support for POSIX tcsendbreak() */
1432 #ifdef ISDN_DEBUG_MODEM_IOCTL
1433 printk(KERN_DEBUG
"ttyI%d ioctl TCSBRKP\n", info
->line
);
1435 retval
= tty_check_change(tty
);
1438 tty_wait_until_sent(tty
, 0);
1440 case TIOCSERGETLSR
: /* Get line status register */
1441 #ifdef ISDN_DEBUG_MODEM_IOCTL
1442 printk(KERN_DEBUG
"ttyI%d ioctl TIOCSERGETLSR\n", info
->line
);
1444 return isdn_tty_get_lsr_info(info
, (uint __user
*) arg
);
1446 #ifdef ISDN_DEBUG_MODEM_IOCTL
1447 printk(KERN_DEBUG
"UNKNOWN ioctl 0x%08x on ttyi%d\n", cmd
, info
->line
);
1449 return -ENOIOCTLCMD
;
1455 isdn_tty_set_termios(struct tty_struct
*tty
, struct ktermios
*old_termios
)
1457 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1459 mutex_lock(&modem_info_mutex
);
1461 isdn_tty_change_speed(info
);
1463 if (tty
->termios
.c_cflag
== old_termios
->c_cflag
&&
1464 tty
->termios
.c_ispeed
== old_termios
->c_ispeed
&&
1465 tty
->termios
.c_ospeed
== old_termios
->c_ospeed
) {
1466 mutex_unlock(&modem_info_mutex
);
1469 isdn_tty_change_speed(info
);
1471 mutex_unlock(&modem_info_mutex
);
1475 * ------------------------------------------------------------
1476 * isdn_tty_open() and friends
1477 * ------------------------------------------------------------
1480 static int isdn_tty_install(struct tty_driver
*driver
, struct tty_struct
*tty
)
1482 modem_info
*info
= &dev
->mdm
.info
[tty
->index
];
1484 if (isdn_tty_paranoia_check(info
, tty
->name
, __func__
))
1487 tty
->driver_data
= info
;
1489 return tty_port_install(&info
->port
, driver
, tty
);
1493 * This routine is called whenever a serial port is opened. It
1494 * enables interrupts for a serial port, linking in its async structure into
1495 * the IRQ chain. It also performs the serial-specific
1496 * initialization for the tty structure.
1499 isdn_tty_open(struct tty_struct
*tty
, struct file
*filp
)
1501 modem_info
*info
= tty
->driver_data
;
1502 struct tty_port
*port
= &info
->port
;
1505 #ifdef ISDN_DEBUG_MODEM_OPEN
1506 printk(KERN_DEBUG
"isdn_tty_open %s, count = %d\n", tty
->name
,
1512 * Start up serial port
1514 retval
= isdn_tty_startup(info
);
1516 #ifdef ISDN_DEBUG_MODEM_OPEN
1517 printk(KERN_DEBUG
"isdn_tty_open return after startup\n");
1521 retval
= tty_port_block_til_ready(port
, tty
, filp
);
1523 #ifdef ISDN_DEBUG_MODEM_OPEN
1524 printk(KERN_DEBUG
"isdn_tty_open return after isdn_tty_block_til_ready \n");
1528 #ifdef ISDN_DEBUG_MODEM_OPEN
1529 printk(KERN_DEBUG
"isdn_tty_open ttyi%d successful...\n", info
->line
);
1532 #ifdef ISDN_DEBUG_MODEM_OPEN
1533 printk(KERN_DEBUG
"isdn_tty_open normal exit\n");
1539 isdn_tty_close(struct tty_struct
*tty
, struct file
*filp
)
1541 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1542 struct tty_port
*port
= &info
->port
;
1545 if (!info
|| isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_close"))
1547 if (tty_hung_up_p(filp
)) {
1548 #ifdef ISDN_DEBUG_MODEM_OPEN
1549 printk(KERN_DEBUG
"isdn_tty_close return after tty_hung_up_p\n");
1553 if ((tty
->count
== 1) && (port
->count
!= 1)) {
1555 * Uh, oh. tty->count is 1, which means that the tty
1556 * structure will be freed. Info->count should always
1557 * be one in these conditions. If it's greater than
1558 * one, we've got real problems, since it means the
1559 * serial port won't be shutdown.
1561 printk(KERN_ERR
"isdn_tty_close: bad port count; tty->count is 1, "
1562 "info->count is %d\n", port
->count
);
1565 if (--port
->count
< 0) {
1566 printk(KERN_ERR
"isdn_tty_close: bad port count for ttyi%d: %d\n",
1567 info
->line
, port
->count
);
1571 #ifdef ISDN_DEBUG_MODEM_OPEN
1572 printk(KERN_DEBUG
"isdn_tty_close after info->count != 0\n");
1580 * At this point we stop accepting input. To do this, we
1581 * disable the receive line status interrupts, and tell the
1582 * interrupt driver to stop checking the data ready bit in the
1583 * line status register.
1585 if (tty_port_initialized(port
)) {
1586 tty_wait_until_sent(tty
, 3000); /* 30 seconds timeout */
1588 * Before we drop DTR, make sure the UART transmitter
1589 * has completely drained; this is especially
1590 * important if there is a transmit FIFO!
1592 timeout
= jiffies
+ HZ
;
1593 while (!(info
->lsr
& UART_LSR_TEMT
)) {
1594 schedule_timeout_interruptible(20);
1595 if (time_after(jiffies
, timeout
))
1600 isdn_tty_shutdown(info
);
1601 isdn_tty_flush_buffer(tty
);
1602 tty_ldisc_flush(tty
);
1606 tty_port_close_end(port
, tty
);
1608 #ifdef ISDN_DEBUG_MODEM_OPEN
1609 printk(KERN_DEBUG
"isdn_tty_close normal exit\n");
1614 * isdn_tty_hangup() --- called by tty_hangup() when a hangup is signaled.
1617 isdn_tty_hangup(struct tty_struct
*tty
)
1619 modem_info
*info
= (modem_info
*) tty
->driver_data
;
1620 struct tty_port
*port
= &info
->port
;
1622 if (isdn_tty_paranoia_check(info
, tty
->name
, "isdn_tty_hangup"))
1624 isdn_tty_shutdown(info
);
1626 tty_port_set_active(port
, 0);
1628 wake_up_interruptible(&port
->open_wait
);
1631 /* This routine initializes all emulator-data.
1634 isdn_tty_reset_profile(atemu
*m
)
1647 m
->profile
[11] = 70;
1648 m
->profile
[12] = 0x45;
1650 m
->profile
[14] = ISDN_PROTO_L2_X75I
;
1651 m
->profile
[15] = ISDN_PROTO_L3_TRANS
;
1652 m
->profile
[16] = ISDN_SERIAL_XMIT_SIZE
/ 16;
1653 m
->profile
[17] = ISDN_MODEM_WINSIZE
;
1662 #ifdef CONFIG_ISDN_AUDIO
1664 isdn_tty_modem_reset_vpar(atemu
*m
)
1666 m
->vpar
[0] = 2; /* Voice-device (2 = phone line) */
1667 m
->vpar
[1] = 0; /* Silence detection level (0 = none ) */
1668 m
->vpar
[2] = 70; /* Silence interval (7 sec. ) */
1669 m
->vpar
[3] = 2; /* Compression type (1 = ADPCM-2 ) */
1670 m
->vpar
[4] = 0; /* DTMF detection level (0 = softcode ) */
1671 m
->vpar
[5] = 8; /* DTMF interval (8 * 5 ms. ) */
1675 #ifdef CONFIG_ISDN_TTY_FAX
1677 isdn_tty_modem_reset_faxpar(modem_info
*info
)
1679 T30_s
*f
= info
->fax
;
1682 f
->phase
= ISDN_FAX_PHASE_IDLE
;
1684 f
->resolution
= 1; /* fine */
1685 f
->rate
= 5; /* 14400 bit/s */
1692 memset(&f
->id
[0], 32, FAXIDLEN
- 1);
1693 f
->id
[FAXIDLEN
- 1] = 0;
1704 memset(&f
->pollid
[0], 32, FAXIDLEN
- 1);
1705 f
->pollid
[FAXIDLEN
- 1] = 0;
1710 isdn_tty_modem_reset_regs(modem_info
*info
, int force
)
1712 atemu
*m
= &info
->emu
;
1713 if ((m
->mdmreg
[REG_DTRR
] & BIT_DTRR
) || force
) {
1714 memcpy(m
->mdmreg
, m
->profile
, ISDN_MODEM_NUMREG
);
1715 memcpy(m
->msn
, m
->pmsn
, ISDN_MSNLEN
);
1716 memcpy(m
->lmsn
, m
->plmsn
, ISDN_LMSNLEN
);
1717 info
->xmit_size
= m
->mdmreg
[REG_PSIZE
] * 16;
1719 #ifdef CONFIG_ISDN_AUDIO
1720 isdn_tty_modem_reset_vpar(m
);
1722 #ifdef CONFIG_ISDN_TTY_FAX
1723 isdn_tty_modem_reset_faxpar(info
);
1729 modem_write_profile(atemu
*m
)
1731 memcpy(m
->profile
, m
->mdmreg
, ISDN_MODEM_NUMREG
);
1732 memcpy(m
->pmsn
, m
->msn
, ISDN_MSNLEN
);
1733 memcpy(m
->plmsn
, m
->lmsn
, ISDN_LMSNLEN
);
1735 send_sig(SIGIO
, dev
->profd
, 1);
1738 static const struct tty_operations modem_ops
= {
1739 .install
= isdn_tty_install
,
1740 .open
= isdn_tty_open
,
1741 .close
= isdn_tty_close
,
1742 .write
= isdn_tty_write
,
1743 .flush_chars
= isdn_tty_flush_chars
,
1744 .write_room
= isdn_tty_write_room
,
1745 .chars_in_buffer
= isdn_tty_chars_in_buffer
,
1746 .flush_buffer
= isdn_tty_flush_buffer
,
1747 .ioctl
= isdn_tty_ioctl
,
1748 .throttle
= isdn_tty_throttle
,
1749 .unthrottle
= isdn_tty_unthrottle
,
1750 .set_termios
= isdn_tty_set_termios
,
1751 .hangup
= isdn_tty_hangup
,
1752 .tiocmget
= isdn_tty_tiocmget
,
1753 .tiocmset
= isdn_tty_tiocmset
,
1756 static int isdn_tty_carrier_raised(struct tty_port
*port
)
1758 modem_info
*info
= container_of(port
, modem_info
, port
);
1759 return info
->msr
& UART_MSR_DCD
;
1762 static const struct tty_port_operations isdn_tty_port_ops
= {
1763 .carrier_raised
= isdn_tty_carrier_raised
,
1767 isdn_tty_modem_init(void)
1774 m
->tty_modem
= alloc_tty_driver(ISDN_MAX_CHANNELS
);
1777 m
->tty_modem
->name
= "ttyI";
1778 m
->tty_modem
->major
= ISDN_TTY_MAJOR
;
1779 m
->tty_modem
->minor_start
= 0;
1780 m
->tty_modem
->type
= TTY_DRIVER_TYPE_SERIAL
;
1781 m
->tty_modem
->subtype
= SERIAL_TYPE_NORMAL
;
1782 m
->tty_modem
->init_termios
= tty_std_termios
;
1783 m
->tty_modem
->init_termios
.c_cflag
= B9600
| CS8
| CREAD
| HUPCL
| CLOCAL
;
1784 m
->tty_modem
->flags
= TTY_DRIVER_REAL_RAW
;
1785 m
->tty_modem
->driver_name
= "isdn_tty";
1786 tty_set_operations(m
->tty_modem
, &modem_ops
);
1787 retval
= tty_register_driver(m
->tty_modem
);
1789 printk(KERN_WARNING
"isdn_tty: Couldn't register modem-device\n");
1792 for (i
= 0; i
< ISDN_MAX_CHANNELS
; i
++) {
1794 #ifdef CONFIG_ISDN_TTY_FAX
1795 if (!(info
->fax
= kmalloc(sizeof(T30_s
), GFP_KERNEL
))) {
1796 printk(KERN_ERR
"Could not allocate fax t30-buffer\n");
1798 goto err_unregister
;
1801 tty_port_init(&info
->port
);
1802 info
->port
.ops
= &isdn_tty_port_ops
;
1803 spin_lock_init(&info
->readlock
);
1804 sprintf(info
->last_cause
, "0000");
1805 sprintf(info
->last_num
, "none");
1807 info
->last_lhup
= 1;
1810 isdn_tty_reset_profile(&info
->emu
);
1811 isdn_tty_modem_reset_regs(info
, 1);
1812 info
->magic
= ISDN_ASYNC_MAGIC
;
1815 info
->isdn_driver
= -1;
1816 info
->isdn_channel
= -1;
1817 info
->drv_index
= -1;
1818 info
->xmit_size
= ISDN_SERIAL_XMIT_SIZE
;
1819 timer_setup(&info
->nc_timer
, isdn_tty_modem_do_ncarrier
, 0);
1820 skb_queue_head_init(&info
->xmit_queue
);
1821 #ifdef CONFIG_ISDN_AUDIO
1822 skb_queue_head_init(&info
->dtmf_queue
);
1824 info
->port
.xmit_buf
= kmalloc(ISDN_SERIAL_XMIT_MAX
+ 5,
1826 if (!info
->port
.xmit_buf
) {
1827 printk(KERN_ERR
"Could not allocate modem xmit-buffer\n");
1829 goto err_unregister
;
1831 /* Make room for T.70 header */
1832 info
->port
.xmit_buf
+= 4;
1836 for (i
--; i
>= 0; i
--) {
1838 #ifdef CONFIG_ISDN_TTY_FAX
1841 kfree(info
->port
.xmit_buf
- 4);
1842 info
->port
.xmit_buf
= NULL
;
1843 tty_port_destroy(&info
->port
);
1845 tty_unregister_driver(m
->tty_modem
);
1847 put_tty_driver(m
->tty_modem
);
1848 m
->tty_modem
= NULL
;
1858 for (i
= 0; i
< ISDN_MAX_CHANNELS
; i
++) {
1859 info
= &dev
->mdm
.info
[i
];
1860 isdn_tty_cleanup_xmit(info
);
1861 #ifdef CONFIG_ISDN_TTY_FAX
1864 kfree(info
->port
.xmit_buf
- 4);
1865 info
->port
.xmit_buf
= NULL
;
1866 tty_port_destroy(&info
->port
);
1868 tty_unregister_driver(dev
->mdm
.tty_modem
);
1869 put_tty_driver(dev
->mdm
.tty_modem
);
1870 dev
->mdm
.tty_modem
= NULL
;
1875 * isdn_tty_match_icall(char *MSN, atemu *tty_emulator, int dev_idx)
1876 * match the MSN against the MSNs (glob patterns) defined for tty_emulator,
1877 * and return 0 for match, 1 for no match, 2 if MSN could match if longer.
1881 isdn_tty_match_icall(char *cid
, atemu
*emu
, int di
)
1883 #ifdef ISDN_DEBUG_MODEM_ICALL
1884 printk(KERN_DEBUG
"m_fi: msn=%s lmsn=%s mmsn=%s mreg[SI1]=%d mreg[SI2]=%d\n",
1885 emu
->msn
, emu
->lmsn
, isdn_map_eaz2msn(emu
->msn
, di
),
1886 emu
->mdmreg
[REG_SI1
], emu
->mdmreg
[REG_SI2
]);
1888 if (strlen(emu
->lmsn
)) {
1889 char *p
= emu
->lmsn
;
1895 if ((q
= strchr(p
, ';')))
1897 if ((tmp
= isdn_msncmp(cid
, isdn_map_eaz2msn(p
, di
))) > ret
)
1899 #ifdef ISDN_DEBUG_MODEM_ICALL
1900 printk(KERN_DEBUG
"m_fi: lmsnX=%s mmsn=%s -> tmp=%d\n",
1901 p
, isdn_map_eaz2msn(emu
->msn
, di
), tmp
);
1916 tmp
= isdn_msncmp(cid
, isdn_map_eaz2msn(emu
->msn
, di
));
1917 #ifdef ISDN_DEBUG_MODEM_ICALL
1918 printk(KERN_DEBUG
"m_fi: mmsn=%s -> tmp=%d\n",
1919 isdn_map_eaz2msn(emu
->msn
, di
), tmp
);
1926 * An incoming call-request has arrived.
1927 * Search the tty-devices for an appropriate device and bind
1928 * it to the ISDN-Channel.
1931 * 0 = No matching device found.
1932 * 1 = A matching device found.
1933 * 3 = No match found, but eventually would match, if
1937 isdn_tty_find_icall(int di
, int ch
, setup_parm
*setup
)
1948 if (!setup
->phone
[0]) {
1950 printk(KERN_INFO
"isdn_tty: Incoming call without OAD, assuming '0'\n");
1953 si1
= (int) setup
->si1
;
1954 si2
= (int) setup
->si2
;
1955 if (!setup
->eazmsn
[0]) {
1956 printk(KERN_WARNING
"isdn_tty: Incoming call without CPN, assuming '0'\n");
1959 eaz
= setup
->eazmsn
;
1960 #ifdef ISDN_DEBUG_MODEM_ICALL
1961 printk(KERN_DEBUG
"m_fi: eaz=%s si1=%d si2=%d\n", eaz
, si1
, si2
);
1964 spin_lock_irqsave(&dev
->lock
, flags
);
1965 for (i
= 0; i
< ISDN_MAX_CHANNELS
; i
++) {
1966 modem_info
*info
= &dev
->mdm
.info
[i
];
1968 if (info
->port
.count
== 0)
1970 if ((info
->emu
.mdmreg
[REG_SI1
] & si2bit
[si1
]) && /* SI1 is matching */
1971 (info
->emu
.mdmreg
[REG_SI2
] == si2
)) { /* SI2 is matching */
1972 idx
= isdn_dc2minor(di
, ch
);
1973 #ifdef ISDN_DEBUG_MODEM_ICALL
1974 printk(KERN_DEBUG
"m_fi: match1 wret=%d\n", wret
);
1975 printk(KERN_DEBUG
"m_fi: idx=%d flags=%08lx drv=%d ch=%d usg=%d\n", idx
,
1976 info
->port
.flags
, info
->isdn_driver
,
1977 info
->isdn_channel
, dev
->usage
[idx
]);
1980 #ifndef FIX_FILE_TRANSFER
1981 tty_port_active(&info
->port
) &&
1983 (info
->isdn_driver
== -1) &&
1984 (info
->isdn_channel
== -1) &&
1985 (USG_NONE(dev
->usage
[idx
]))) {
1988 if ((matchret
= isdn_tty_match_icall(eaz
, &info
->emu
, di
)) > wret
)
1990 if (!matchret
) { /* EAZ is matching */
1991 info
->isdn_driver
= di
;
1992 info
->isdn_channel
= ch
;
1993 info
->drv_index
= idx
;
1994 dev
->m_idx
[idx
] = info
->line
;
1995 dev
->usage
[idx
] &= ISDN_USAGE_EXCLUSIVE
;
1996 dev
->usage
[idx
] |= isdn_calc_usage(si1
, info
->emu
.mdmreg
[REG_L2PROT
]);
1997 strcpy(dev
->num
[idx
], nr
);
1998 strcpy(info
->emu
.cpn
, eaz
);
1999 info
->emu
.mdmreg
[REG_SI1I
] = si2bit
[si1
];
2000 info
->emu
.mdmreg
[REG_PLAN
] = setup
->plan
;
2001 info
->emu
.mdmreg
[REG_SCREEN
] = setup
->screen
;
2003 spin_unlock_irqrestore(&dev
->lock
, flags
);
2004 printk(KERN_INFO
"isdn_tty: call from %s, -> RING on ttyI%d\n", nr
,
2006 info
->msr
|= UART_MSR_RI
;
2007 isdn_tty_modem_result(RESULT_RING
, info
);
2008 isdn_timer_ctrl(ISDN_TIMER_MODEMRING
, 1);
2014 spin_unlock_irqrestore(&dev
->lock
, flags
);
2015 printk(KERN_INFO
"isdn_tty: call from %s -> %s %s\n", nr
, eaz
,
2016 ((dev
->drv
[di
]->flags
& DRV_FLAG_REJBUS
) && (wret
!= 2)) ? "rejected" : "ignored");
2017 return (wret
== 2) ? 3 : 0;
2021 isdn_tty_stat_callback(int i
, isdn_ctrl
*c
)
2029 if ((mi
= dev
->m_idx
[i
]) >= 0) {
2030 info
= &dev
->mdm
.info
[mi
];
2031 switch (c
->command
) {
2032 case ISDN_STAT_CINF
:
2033 printk(KERN_DEBUG
"CHARGEINFO on ttyI%d: %ld %s\n", info
->line
, c
->arg
, c
->parm
.num
);
2034 info
->emu
.charge
= (unsigned) simple_strtoul(c
->parm
.num
, &e
, 10);
2035 if (e
== (char *)c
->parm
.num
)
2036 info
->emu
.charge
= 0;
2039 case ISDN_STAT_BSENT
:
2040 #ifdef ISDN_TTY_STAT_DEBUG
2041 printk(KERN_DEBUG
"tty_STAT_BSENT ttyI%d\n", info
->line
);
2043 if ((info
->isdn_driver
== c
->driver
) &&
2044 (info
->isdn_channel
== c
->arg
)) {
2045 info
->msr
|= UART_MSR_CTS
;
2046 if (info
->send_outstanding
)
2047 if (!(--info
->send_outstanding
))
2048 info
->lsr
|= UART_LSR_TEMT
;
2049 isdn_tty_tint(info
);
2053 case ISDN_STAT_CAUSE
:
2054 #ifdef ISDN_TTY_STAT_DEBUG
2055 printk(KERN_DEBUG
"tty_STAT_CAUSE ttyI%d\n", info
->line
);
2057 /* Signal cause to tty-device */
2058 strncpy(info
->last_cause
, c
->parm
.num
, 5);
2060 case ISDN_STAT_DISPLAY
:
2061 #ifdef ISDN_TTY_STAT_DEBUG
2062 printk(KERN_DEBUG
"tty_STAT_DISPLAY ttyI%d\n", info
->line
);
2064 /* Signal display to tty-device */
2065 if ((info
->emu
.mdmreg
[REG_DISPLAY
] & BIT_DISPLAY
) &&
2066 !(info
->emu
.mdmreg
[REG_RESPNUM
] & BIT_RESPNUM
)) {
2067 isdn_tty_at_cout("\r\n", info
);
2068 isdn_tty_at_cout("DISPLAY: ", info
);
2069 isdn_tty_at_cout(c
->parm
.display
, info
);
2070 isdn_tty_at_cout("\r\n", info
);
2073 case ISDN_STAT_DCONN
:
2074 #ifdef ISDN_TTY_STAT_DEBUG
2075 printk(KERN_DEBUG
"tty_STAT_DCONN ttyI%d\n", info
->line
);
2077 if (tty_port_active(&info
->port
)) {
2078 if (info
->dialing
== 1) {
2084 case ISDN_STAT_DHUP
:
2085 #ifdef ISDN_TTY_STAT_DEBUG
2086 printk(KERN_DEBUG
"tty_STAT_DHUP ttyI%d\n", info
->line
);
2088 if (tty_port_active(&info
->port
)) {
2089 if (info
->dialing
== 1)
2090 isdn_tty_modem_result(RESULT_BUSY
, info
);
2091 if (info
->dialing
> 1)
2092 isdn_tty_modem_result(RESULT_NO_CARRIER
, info
);
2094 #ifdef ISDN_DEBUG_MODEM_HUP
2095 printk(KERN_DEBUG
"Mhup in ISDN_STAT_DHUP\n");
2097 isdn_tty_modem_hup(info
, 0);
2101 case ISDN_STAT_BCONN
:
2102 #ifdef ISDN_TTY_STAT_DEBUG
2103 printk(KERN_DEBUG
"tty_STAT_BCONN ttyI%d\n", info
->line
);
2105 /* Wake up any processes waiting
2106 * for incoming call of this device when
2107 * DCD follow the state of incoming carrier
2109 if (info
->port
.blocked_open
&&
2110 (info
->emu
.mdmreg
[REG_DCD
] & BIT_DCD
)) {
2111 wake_up_interruptible(&info
->port
.open_wait
);
2114 /* Schedule CONNECT-Message to any tty
2115 * waiting for it and
2116 * set DCD-bit of its modem-status.
2118 if (tty_port_active(&info
->port
) ||
2119 (info
->port
.blocked_open
&&
2120 (info
->emu
.mdmreg
[REG_DCD
] & BIT_DCD
))) {
2121 info
->msr
|= UART_MSR_DCD
;
2122 info
->emu
.charge
= 0;
2123 if (info
->dialing
& 0xf)
2129 if (USG_MODEM(dev
->usage
[i
])) {
2130 if (info
->emu
.mdmreg
[REG_L2PROT
] == ISDN_PROTO_L2_MODEM
) {
2131 strcpy(info
->emu
.connmsg
, c
->parm
.num
);
2132 isdn_tty_modem_result(RESULT_CONNECT
, info
);
2134 isdn_tty_modem_result(RESULT_CONNECT64000
, info
);
2136 if (USG_VOICE(dev
->usage
[i
]))
2137 isdn_tty_modem_result(RESULT_VCON
, info
);
2141 case ISDN_STAT_BHUP
:
2142 #ifdef ISDN_TTY_STAT_DEBUG
2143 printk(KERN_DEBUG
"tty_STAT_BHUP ttyI%d\n", info
->line
);
2145 if (tty_port_active(&info
->port
)) {
2146 #ifdef ISDN_DEBUG_MODEM_HUP
2147 printk(KERN_DEBUG
"Mhup in ISDN_STAT_BHUP\n");
2149 isdn_tty_modem_hup(info
, 0);
2153 case ISDN_STAT_NODCH
:
2154 #ifdef ISDN_TTY_STAT_DEBUG
2155 printk(KERN_DEBUG
"tty_STAT_NODCH ttyI%d\n", info
->line
);
2157 if (tty_port_active(&info
->port
)) {
2158 if (info
->dialing
) {
2162 sprintf(info
->last_cause
, "0000");
2163 isdn_tty_modem_result(RESULT_NO_DIALTONE
, info
);
2165 isdn_tty_modem_hup(info
, 0);
2169 case ISDN_STAT_UNLOAD
:
2170 #ifdef ISDN_TTY_STAT_DEBUG
2171 printk(KERN_DEBUG
"tty_STAT_UNLOAD ttyI%d\n", info
->line
);
2173 for (i
= 0; i
< ISDN_MAX_CHANNELS
; i
++) {
2174 info
= &dev
->mdm
.info
[i
];
2175 if (info
->isdn_driver
== c
->driver
) {
2177 isdn_tty_modem_hup(info
, 1);
2181 #ifdef CONFIG_ISDN_TTY_FAX
2182 case ISDN_STAT_FAXIND
:
2183 if (tty_port_active(&info
->port
)) {
2184 isdn_tty_fax_command(info
, c
);
2188 #ifdef CONFIG_ISDN_AUDIO
2189 case ISDN_STAT_AUDIO
:
2190 if (tty_port_active(&info
->port
)) {
2191 switch (c
->parm
.num
[0]) {
2192 case ISDN_AUDIO_DTMF
:
2193 if (info
->vonline
) {
2194 isdn_audio_put_dle_code(info
,
2207 /*********************************************************************
2208 Modem-Emulator-Routines
2209 *********************************************************************/
2211 #define cmdchar(c) ((c >= ' ') && (c <= 0x7f))
2214 * Put a message from the AT-emulator into receive-buffer of tty,
2215 * convert CR, LF, and BS to values in modem-registers 3, 4 and 5.
2218 isdn_tty_at_cout(char *msg
, modem_info
*info
)
2220 struct tty_port
*port
= &info
->port
;
2221 atemu
*m
= &info
->emu
;
2225 struct sk_buff
*skb
= NULL
;
2230 printk(KERN_WARNING
"isdn_tty: Null-Message in isdn_tty_at_cout\n");
2236 spin_lock_irqsave(&info
->readlock
, flags
);
2237 if (info
->closing
) {
2238 spin_unlock_irqrestore(&info
->readlock
, flags
);
2242 /* use queue instead of direct, if online and */
2243 /* data is in queue or buffer is full */
2244 if (info
->online
&& ((tty_buffer_request_room(port
, l
) < l
) ||
2245 !skb_queue_empty(&dev
->drv
[info
->isdn_driver
]->rpqueue
[info
->isdn_channel
]))) {
2246 skb
= alloc_skb(l
, GFP_ATOMIC
);
2248 spin_unlock_irqrestore(&info
->readlock
, flags
);
2251 sp
= skb_put(skb
, l
);
2252 #ifdef CONFIG_ISDN_AUDIO
2253 ISDN_AUDIO_SKB_DLECOUNT(skb
) = 0;
2254 ISDN_AUDIO_SKB_LOCK(skb
) = 0;
2258 for (p
= msg
; *p
; p
++) {
2261 c
= m
->mdmreg
[REG_CR
];
2264 c
= m
->mdmreg
[REG_LF
];
2267 c
= m
->mdmreg
[REG_BS
];
2275 if (tty_insert_flip_char(port
, c
, TTY_NORMAL
) == 0)
2280 __skb_queue_tail(&dev
->drv
[info
->isdn_driver
]->rpqueue
[info
->isdn_channel
], skb
);
2281 dev
->drv
[info
->isdn_driver
]->rcvcount
[info
->isdn_channel
] += skb
->len
;
2282 spin_unlock_irqrestore(&info
->readlock
, flags
);
2283 /* Schedule dequeuing */
2284 if (dev
->modempoll
&& info
->rcvsched
)
2285 isdn_timer_ctrl(ISDN_TIMER_MODEMREAD
, 1);
2288 spin_unlock_irqrestore(&info
->readlock
, flags
);
2289 tty_flip_buffer_push(port
);
2294 * Perform ATH Hangup
2297 isdn_tty_on_hook(modem_info
*info
)
2299 if (info
->isdn_channel
>= 0) {
2300 #ifdef ISDN_DEBUG_MODEM_HUP
2301 printk(KERN_DEBUG
"Mhup in isdn_tty_on_hook\n");
2303 isdn_tty_modem_hup(info
, 1);
2308 isdn_tty_off_hook(void)
2310 printk(KERN_DEBUG
"isdn_tty_off_hook\n");
2313 #define PLUSWAIT1 (HZ / 2) /* 0.5 sec. */
2314 #define PLUSWAIT2 (HZ * 3 / 2) /* 1.5 sec */
2317 * Check Buffer for Modem-escape-sequence, activate timer-callback to
2318 * isdn_tty_modem_escape() if sequence found.
2321 * p pointer to databuffer
2322 * plus escape-character
2323 * count length of buffer
2324 * pluscount count of valid escape-characters so far
2325 * lastplus timestamp of last character
2328 isdn_tty_check_esc(const u_char
*p
, u_char plus
, int count
, int *pluscount
,
2339 if (*(p
++) == plus
) {
2340 if ((*pluscount
)++) {
2341 /* Time since last '+' > 0.5 sec. ? */
2342 if (time_after(jiffies
, *lastplus
+ PLUSWAIT1
))
2345 /* Time since last non-'+' < 1.5 sec. ? */
2346 if (time_before(jiffies
, *lastplus
+ PLUSWAIT2
))
2349 if ((*pluscount
== 3) && (count
== 1))
2350 isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS
, 1);
2355 *lastplus
= jiffies
;
2361 * Return result of AT-emulator to tty-receive-buffer, depending on
2362 * modem-register 12, bit 0 and 1.
2363 * For CONNECT-messages also switch to online-mode.
2364 * For RING-message handle auto-ATA if register 0 != 0
2368 isdn_tty_modem_result(int code
, modem_info
*info
)
2370 atemu
*m
= &info
->emu
;
2371 static char *msg
[] =
2372 {"OK", "CONNECT", "RING", "NO CARRIER", "ERROR",
2373 "CONNECT 64000", "NO DIALTONE", "BUSY", "NO ANSWER",
2374 "RINGING", "NO MSN/EAZ", "VCON", "RUNG"};
2375 char s
[ISDN_MSNLEN
+ 10];
2379 m
->mdmreg
[REG_RINGCNT
]++;
2380 if (m
->mdmreg
[REG_RINGCNT
] == m
->mdmreg
[REG_RINGATA
])
2381 /* Automatically accept incoming call */
2382 isdn_tty_cmd_ATA(info
);
2384 case RESULT_NO_CARRIER
:
2385 #ifdef ISDN_DEBUG_MODEM_HUP
2386 printk(KERN_DEBUG
"modem_result: NO CARRIER %d %d\n",
2387 info
->closing
, !info
->port
.tty
);
2389 m
->mdmreg
[REG_RINGCNT
] = 0;
2390 del_timer(&info
->nc_timer
);
2392 if (info
->closing
|| !info
->port
.tty
)
2395 #ifdef CONFIG_ISDN_AUDIO
2396 if (info
->vonline
& 1) {
2397 #ifdef ISDN_DEBUG_MODEM_VOICE
2398 printk(KERN_DEBUG
"res3: send DLE-ETX on ttyI%d\n",
2401 /* voice-recording, add DLE-ETX */
2402 isdn_tty_at_cout("\020\003", info
);
2404 if (info
->vonline
& 2) {
2405 #ifdef ISDN_DEBUG_MODEM_VOICE
2406 printk(KERN_DEBUG
"res3: send DLE-DC4 on ttyI%d\n",
2409 /* voice-playing, add DLE-DC4 */
2410 isdn_tty_at_cout("\020\024", info
);
2414 case RESULT_CONNECT
:
2415 case RESULT_CONNECT64000
:
2416 sprintf(info
->last_cause
, "0000");
2421 #ifdef ISDN_DEBUG_MODEM_VOICE
2422 printk(KERN_DEBUG
"res3: send VCON on ttyI%d\n",
2425 sprintf(info
->last_cause
, "0000");
2429 } /* switch (code) */
2431 if (m
->mdmreg
[REG_RESP
] & BIT_RESP
) {
2433 if (m
->mdmreg
[REG_RESPNUM
] & BIT_RESPNUM
) {
2434 /* Show numeric results only */
2435 sprintf(s
, "\r\n%d\r\n", code
);
2436 isdn_tty_at_cout(s
, info
);
2438 if (code
== RESULT_RING
) {
2439 /* return if "show RUNG" and ringcounter>1 */
2440 if ((m
->mdmreg
[REG_RUNG
] & BIT_RUNG
) &&
2441 (m
->mdmreg
[REG_RINGCNT
] > 1))
2443 /* print CID, _before_ _every_ ring */
2444 if (!(m
->mdmreg
[REG_CIDONCE
] & BIT_CIDONCE
)) {
2445 isdn_tty_at_cout("\r\nCALLER NUMBER: ", info
);
2446 isdn_tty_at_cout(dev
->num
[info
->drv_index
], info
);
2447 if (m
->mdmreg
[REG_CDN
] & BIT_CDN
) {
2448 isdn_tty_at_cout("\r\nCALLED NUMBER: ", info
);
2449 isdn_tty_at_cout(info
->emu
.cpn
, info
);
2453 isdn_tty_at_cout("\r\n", info
);
2454 isdn_tty_at_cout(msg
[code
], info
);
2456 case RESULT_CONNECT
:
2457 switch (m
->mdmreg
[REG_L2PROT
]) {
2458 case ISDN_PROTO_L2_MODEM
:
2459 isdn_tty_at_cout(" ", info
);
2460 isdn_tty_at_cout(m
->connmsg
, info
);
2465 /* Append CPN, if enabled */
2466 if ((m
->mdmreg
[REG_CPN
] & BIT_CPN
)) {
2467 sprintf(s
, "/%s", m
->cpn
);
2468 isdn_tty_at_cout(s
, info
);
2470 /* Print CID only once, _after_ 1st RING */
2471 if ((m
->mdmreg
[REG_CIDONCE
] & BIT_CIDONCE
) &&
2472 (m
->mdmreg
[REG_RINGCNT
] == 1)) {
2473 isdn_tty_at_cout("\r\n", info
);
2474 isdn_tty_at_cout("CALLER NUMBER: ", info
);
2475 isdn_tty_at_cout(dev
->num
[info
->drv_index
], info
);
2476 if (m
->mdmreg
[REG_CDN
] & BIT_CDN
) {
2477 isdn_tty_at_cout("\r\nCALLED NUMBER: ", info
);
2478 isdn_tty_at_cout(info
->emu
.cpn
, info
);
2482 case RESULT_NO_CARRIER
:
2483 case RESULT_NO_DIALTONE
:
2485 case RESULT_NO_ANSWER
:
2486 m
->mdmreg
[REG_RINGCNT
] = 0;
2487 /* Append Cause-Message if enabled */
2488 if (m
->mdmreg
[REG_RESPXT
] & BIT_RESPXT
) {
2489 sprintf(s
, "/%s", info
->last_cause
);
2490 isdn_tty_at_cout(s
, info
);
2493 case RESULT_CONNECT64000
:
2494 /* Append Protocol to CONNECT message */
2495 switch (m
->mdmreg
[REG_L2PROT
]) {
2496 case ISDN_PROTO_L2_X75I
:
2497 case ISDN_PROTO_L2_X75UI
:
2498 case ISDN_PROTO_L2_X75BUI
:
2499 isdn_tty_at_cout("/X.75", info
);
2501 case ISDN_PROTO_L2_HDLC
:
2502 isdn_tty_at_cout("/HDLC", info
);
2504 case ISDN_PROTO_L2_V11096
:
2505 isdn_tty_at_cout("/V110/9600", info
);
2507 case ISDN_PROTO_L2_V11019
:
2508 isdn_tty_at_cout("/V110/19200", info
);
2510 case ISDN_PROTO_L2_V11038
:
2511 isdn_tty_at_cout("/V110/38400", info
);
2514 if (m
->mdmreg
[REG_T70
] & BIT_T70
) {
2515 isdn_tty_at_cout("/T.70", info
);
2516 if (m
->mdmreg
[REG_T70
] & BIT_T70_EXT
)
2517 isdn_tty_at_cout("+", info
);
2521 isdn_tty_at_cout("\r\n", info
);
2524 if (code
== RESULT_NO_CARRIER
) {
2525 if (info
->closing
|| (!info
->port
.tty
))
2528 if (tty_port_check_carrier(&info
->port
))
2529 tty_hangup(info
->port
.tty
);
2535 * Display a modem-register-value.
2538 isdn_tty_show_profile(int ridx
, modem_info
*info
)
2542 sprintf(v
, "\r\n%d", info
->emu
.mdmreg
[ridx
]);
2543 isdn_tty_at_cout(v
, info
);
2547 * Get MSN-string from char-pointer, set pointer to end of number
2550 isdn_tty_get_msnstr(char *n
, char **p
)
2552 int limit
= ISDN_MSNLEN
- 1;
2554 while (((*p
[0] >= '0' && *p
[0] <= '9') ||
2555 /* Why a comma ??? */
2556 (*p
[0] == ',') || (*p
[0] == ':')) &&
2563 * Get phone-number from modem-commandbuffer
2566 isdn_tty_getdial(char *p
, char *q
, int cnt
)
2569 int limit
= ISDN_MSNLEN
- 1; /* MUST match the size of interface var to avoid
2572 while (strchr(" 0123456789,#.*WPTSR-", *p
) && *p
&& --cnt
> 0) {
2573 if ((*p
>= '0' && *p
<= '9') || ((*p
== 'S') && first
) ||
2574 ((*p
== 'R') && first
) ||
2575 (*p
== '*') || (*p
== '#')) {
2587 #define PARSE_ERROR { isdn_tty_modem_result(RESULT_ERROR, info); return; }
2588 #define PARSE_ERROR1 { isdn_tty_modem_result(RESULT_ERROR, info); return 1; }
2591 isdn_tty_report(modem_info
*info
)
2593 atemu
*m
= &info
->emu
;
2596 isdn_tty_at_cout("\r\nStatistics of last connection:\r\n\r\n", info
);
2597 sprintf(s
, " Remote Number: %s\r\n", info
->last_num
);
2598 isdn_tty_at_cout(s
, info
);
2599 sprintf(s
, " Direction: %s\r\n", info
->last_dir
? "outgoing" : "incoming");
2600 isdn_tty_at_cout(s
, info
);
2601 isdn_tty_at_cout(" Layer-2 Protocol: ", info
);
2602 switch (info
->last_l2
) {
2603 case ISDN_PROTO_L2_X75I
:
2604 isdn_tty_at_cout("X.75i", info
);
2606 case ISDN_PROTO_L2_X75UI
:
2607 isdn_tty_at_cout("X.75ui", info
);
2609 case ISDN_PROTO_L2_X75BUI
:
2610 isdn_tty_at_cout("X.75bui", info
);
2612 case ISDN_PROTO_L2_HDLC
:
2613 isdn_tty_at_cout("HDLC", info
);
2615 case ISDN_PROTO_L2_V11096
:
2616 isdn_tty_at_cout("V.110 9600 Baud", info
);
2618 case ISDN_PROTO_L2_V11019
:
2619 isdn_tty_at_cout("V.110 19200 Baud", info
);
2621 case ISDN_PROTO_L2_V11038
:
2622 isdn_tty_at_cout("V.110 38400 Baud", info
);
2624 case ISDN_PROTO_L2_TRANS
:
2625 isdn_tty_at_cout("transparent", info
);
2627 case ISDN_PROTO_L2_MODEM
:
2628 isdn_tty_at_cout("modem", info
);
2630 case ISDN_PROTO_L2_FAX
:
2631 isdn_tty_at_cout("fax", info
);
2634 isdn_tty_at_cout("unknown", info
);
2637 if (m
->mdmreg
[REG_T70
] & BIT_T70
) {
2638 isdn_tty_at_cout("/T.70", info
);
2639 if (m
->mdmreg
[REG_T70
] & BIT_T70_EXT
)
2640 isdn_tty_at_cout("+", info
);
2642 isdn_tty_at_cout("\r\n", info
);
2643 isdn_tty_at_cout(" Service: ", info
);
2644 switch (info
->last_si
) {
2646 isdn_tty_at_cout("audio\r\n", info
);
2649 isdn_tty_at_cout("btx\r\n", info
);
2652 isdn_tty_at_cout("data\r\n", info
);
2655 sprintf(s
, "%d\r\n", info
->last_si
);
2656 isdn_tty_at_cout(s
, info
);
2659 sprintf(s
, " Hangup location: %s\r\n", info
->last_lhup
? "local" : "remote");
2660 isdn_tty_at_cout(s
, info
);
2661 sprintf(s
, " Last cause: %s\r\n", info
->last_cause
);
2662 isdn_tty_at_cout(s
, info
);
2666 * Parse AT&.. commands.
2669 isdn_tty_cmd_ATand(char **p
, modem_info
*info
)
2671 atemu
*m
= &info
->emu
;
2675 #define MAXRB (sizeof(rb) - 1)
2679 /* &B - Set Buffersize */
2682 if ((i
< 0) || (i
> ISDN_SERIAL_XMIT_MAX
))
2684 #ifdef CONFIG_ISDN_AUDIO
2685 if ((m
->mdmreg
[REG_SI1
] & 1) && (i
> VBUF
))
2688 m
->mdmreg
[REG_PSIZE
] = i
/ 16;
2689 info
->xmit_size
= m
->mdmreg
[REG_PSIZE
] * 16;
2690 switch (m
->mdmreg
[REG_L2PROT
]) {
2691 case ISDN_PROTO_L2_V11096
:
2692 case ISDN_PROTO_L2_V11019
:
2693 case ISDN_PROTO_L2_V11038
:
2694 info
->xmit_size
/= 10;
2698 /* &C - DCD Status */
2700 switch (isdn_getnum(p
)) {
2702 m
->mdmreg
[REG_DCD
] &= ~BIT_DCD
;
2705 m
->mdmreg
[REG_DCD
] |= BIT_DCD
;
2712 /* &D - Set DTR-Low-behavior */
2714 switch (isdn_getnum(p
)) {
2716 m
->mdmreg
[REG_DTRHUP
] &= ~BIT_DTRHUP
;
2717 m
->mdmreg
[REG_DTRR
] &= ~BIT_DTRR
;
2720 m
->mdmreg
[REG_DTRHUP
] |= BIT_DTRHUP
;
2721 m
->mdmreg
[REG_DTRR
] &= ~BIT_DTRR
;
2724 m
->mdmreg
[REG_DTRHUP
] |= BIT_DTRHUP
;
2725 m
->mdmreg
[REG_DTRR
] |= BIT_DTRR
;
2732 /* &E -Set EAZ/MSN */
2734 isdn_tty_get_msnstr(m
->msn
, p
);
2737 /* &F -Set Factory-Defaults */
2739 if (info
->msr
& UART_MSR_DCD
)
2741 isdn_tty_reset_profile(m
);
2742 isdn_tty_modem_reset_regs(info
, 1);
2744 #ifdef DUMMY_HAYES_AT
2746 /* only for be compilant with common scripts */
2747 /* &K Flowcontrol - no function */
2753 /* &L -Set Numbers to listen on */
2756 while (*p
[0] && (strchr("0123456789,-*[]?;", *p
[0])) &&
2757 (i
< ISDN_LMSNLEN
- 1))
2758 m
->lmsn
[i
++] = *p
[0]++;
2762 /* &R - Set V.110 bitrate adaption */
2767 /* Switch off V.110, back to X.75 */
2768 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_X75I
;
2769 m
->mdmreg
[REG_SI2
] = 0;
2770 info
->xmit_size
= m
->mdmreg
[REG_PSIZE
] * 16;
2773 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_V11096
;
2774 m
->mdmreg
[REG_SI2
] = 197;
2775 info
->xmit_size
= m
->mdmreg
[REG_PSIZE
] * 16 / 10;
2778 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_V11019
;
2779 m
->mdmreg
[REG_SI2
] = 199;
2780 info
->xmit_size
= m
->mdmreg
[REG_PSIZE
] * 16 / 10;
2783 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_V11038
;
2784 m
->mdmreg
[REG_SI2
] = 198; /* no existing standard for this */
2785 info
->xmit_size
= m
->mdmreg
[REG_PSIZE
] * 16 / 10;
2790 /* Switch off T.70 */
2791 m
->mdmreg
[REG_T70
] &= ~(BIT_T70
| BIT_T70_EXT
);
2793 m
->mdmreg
[REG_SI1
] |= 4;
2796 /* &S - Set Windowsize */
2799 if ((i
> 0) && (i
< 9))
2800 m
->mdmreg
[REG_WSIZE
] = i
;
2805 /* &V - Show registers */
2807 isdn_tty_at_cout("\r\n", info
);
2808 for (i
= 0; i
< ISDN_MODEM_NUMREG
; i
++) {
2809 sprintf(rb
, "S%02d=%03d%s", i
,
2810 m
->mdmreg
[i
], ((i
+ 1) % 10) ? " " : "\r\n");
2811 isdn_tty_at_cout(rb
, info
);
2813 sprintf(rb
, "\r\nEAZ/MSN: %.50s\r\n",
2814 strlen(m
->msn
) ? m
->msn
: "None");
2815 isdn_tty_at_cout(rb
, info
);
2816 if (strlen(m
->lmsn
)) {
2817 isdn_tty_at_cout("\r\nListen: ", info
);
2818 isdn_tty_at_cout(m
->lmsn
, info
);
2819 isdn_tty_at_cout("\r\n", info
);
2823 /* &W - Write Profile */
2828 modem_write_profile(m
);
2835 /* &X - Switch to BTX-Mode and T.70 */
2837 switch (isdn_getnum(p
)) {
2839 m
->mdmreg
[REG_T70
] &= ~(BIT_T70
| BIT_T70_EXT
);
2840 info
->xmit_size
= m
->mdmreg
[REG_PSIZE
] * 16;
2843 m
->mdmreg
[REG_T70
] |= BIT_T70
;
2844 m
->mdmreg
[REG_T70
] &= ~BIT_T70_EXT
;
2845 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_X75I
;
2846 info
->xmit_size
= 112;
2847 m
->mdmreg
[REG_SI1
] = 4;
2848 m
->mdmreg
[REG_SI2
] = 0;
2851 m
->mdmreg
[REG_T70
] |= (BIT_T70
| BIT_T70_EXT
);
2852 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_X75I
;
2853 info
->xmit_size
= 112;
2854 m
->mdmreg
[REG_SI1
] = 4;
2855 m
->mdmreg
[REG_SI2
] = 0;
2868 isdn_tty_check_ats(int mreg
, int mval
, modem_info
*info
, atemu
*m
)
2870 /* Some plausibility checks */
2873 if (mval
> ISDN_PROTO_L2_MAX
)
2877 if ((mval
* 16) > ISDN_SERIAL_XMIT_MAX
)
2879 #ifdef CONFIG_ISDN_AUDIO
2880 if ((m
->mdmreg
[REG_SI1
] & 1) && (mval
> VBUFX
))
2883 info
->xmit_size
= mval
* 16;
2884 switch (m
->mdmreg
[REG_L2PROT
]) {
2885 case ISDN_PROTO_L2_V11096
:
2886 case ISDN_PROTO_L2_V11019
:
2887 case ISDN_PROTO_L2_V11038
:
2888 info
->xmit_size
/= 10;
2894 /* readonly registers */
2901 * Perform ATS command
2904 isdn_tty_cmd_ATS(char **p
, modem_info
*info
)
2906 atemu
*m
= &info
->emu
;
2912 mreg
= isdn_getnum(p
);
2913 if (mreg
< 0 || mreg
>= ISDN_MODEM_NUMREG
)
2918 mval
= isdn_getnum(p
);
2919 if (mval
< 0 || mval
> 255)
2921 if (isdn_tty_check_ats(mreg
, mval
, info
, m
))
2923 m
->mdmreg
[mreg
] = mval
;
2926 /* Set/Clear a single bit */
2928 bitpos
= isdn_getnum(p
);
2929 if ((bitpos
< 0) || (bitpos
> 7))
2934 bval
= isdn_getnum(p
);
2935 if (bval
< 0 || bval
> 1)
2938 mval
= m
->mdmreg
[mreg
] | (1 << bitpos
);
2940 mval
= m
->mdmreg
[mreg
] & ~(1 << bitpos
);
2941 if (isdn_tty_check_ats(mreg
, mval
, info
, m
))
2943 m
->mdmreg
[mreg
] = mval
;
2947 isdn_tty_at_cout("\r\n", info
);
2948 isdn_tty_at_cout((m
->mdmreg
[mreg
] & (1 << bitpos
)) ? "1" : "0",
2957 isdn_tty_show_profile(mreg
, info
);
2967 * Perform ATA command
2970 isdn_tty_cmd_ATA(modem_info
*info
)
2972 atemu
*m
= &info
->emu
;
2976 if (info
->msr
& UART_MSR_RI
) {
2977 /* Accept incoming call */
2979 strcpy(info
->last_num
, dev
->num
[info
->drv_index
]);
2980 m
->mdmreg
[REG_RINGCNT
] = 0;
2981 info
->msr
&= ~UART_MSR_RI
;
2982 l2
= m
->mdmreg
[REG_L2PROT
];
2983 #ifdef CONFIG_ISDN_AUDIO
2984 /* If more than one bit set in reg18, autoselect Layer2 */
2985 if ((m
->mdmreg
[REG_SI1
] & m
->mdmreg
[REG_SI1I
]) != m
->mdmreg
[REG_SI1
]) {
2986 if (m
->mdmreg
[REG_SI1I
] == 1) {
2987 if ((l2
!= ISDN_PROTO_L2_MODEM
) && (l2
!= ISDN_PROTO_L2_FAX
))
2988 l2
= ISDN_PROTO_L2_TRANS
;
2990 l2
= ISDN_PROTO_L2_X75I
;
2993 cmd
.driver
= info
->isdn_driver
;
2994 cmd
.command
= ISDN_CMD_SETL2
;
2995 cmd
.arg
= info
->isdn_channel
+ (l2
<< 8);
2998 cmd
.driver
= info
->isdn_driver
;
2999 cmd
.command
= ISDN_CMD_SETL3
;
3000 cmd
.arg
= info
->isdn_channel
+ (m
->mdmreg
[REG_L3PROT
] << 8);
3001 #ifdef CONFIG_ISDN_TTY_FAX
3002 if (l2
== ISDN_PROTO_L2_FAX
) {
3003 cmd
.parm
.fax
= info
->fax
;
3004 info
->fax
->direction
= ISDN_TTY_FAX_CONN_IN
;
3008 cmd
.driver
= info
->isdn_driver
;
3009 cmd
.arg
= info
->isdn_channel
;
3010 cmd
.command
= ISDN_CMD_ACCEPTD
;
3012 info
->emu
.carrierwait
= 0;
3014 isdn_timer_ctrl(ISDN_TIMER_CARRIER
, 1);
3016 isdn_tty_modem_result(RESULT_NO_ANSWER
, info
);
3019 #ifdef CONFIG_ISDN_AUDIO
3021 * Parse AT+F.. commands
3024 isdn_tty_cmd_PLUSF(char **p
, modem_info
*info
)
3026 atemu
*m
= &info
->emu
;
3029 if (!strncmp(p
[0], "CLASS", 5)) {
3034 sprintf(rs
, "\r\n%d",
3035 (m
->mdmreg
[REG_SI1
] & 1) ? 8 : 0);
3036 #ifdef CONFIG_ISDN_TTY_FAX
3037 if (TTY_IS_FCLASS2(info
))
3038 sprintf(rs
, "\r\n2");
3039 else if (TTY_IS_FCLASS1(info
))
3040 sprintf(rs
, "\r\n1");
3042 isdn_tty_at_cout(rs
, info
);
3049 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_X75I
;
3050 m
->mdmreg
[REG_L3PROT
] = ISDN_PROTO_L3_TRANS
;
3051 m
->mdmreg
[REG_SI1
] = 4;
3053 m
->mdmreg
[REG_PSIZE
] * 16;
3055 #ifdef CONFIG_ISDN_TTY_FAX
3058 if (!(dev
->global_features
&
3059 ISDN_FEATURE_L3_FCLASS1
))
3061 m
->mdmreg
[REG_SI1
] = 1;
3062 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_FAX
;
3063 m
->mdmreg
[REG_L3PROT
] = ISDN_PROTO_L3_FCLASS1
;
3065 m
->mdmreg
[REG_PSIZE
] * 16;
3069 if (!(dev
->global_features
&
3070 ISDN_FEATURE_L3_FCLASS2
))
3072 m
->mdmreg
[REG_SI1
] = 1;
3073 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_FAX
;
3074 m
->mdmreg
[REG_L3PROT
] = ISDN_PROTO_L3_FCLASS2
;
3076 m
->mdmreg
[REG_PSIZE
] * 16;
3081 /* L2 will change on dialout with si=1 */
3082 m
->mdmreg
[REG_L2PROT
] = ISDN_PROTO_L2_X75I
;
3083 m
->mdmreg
[REG_L3PROT
] = ISDN_PROTO_L3_TRANS
;
3084 m
->mdmreg
[REG_SI1
] = 5;
3085 info
->xmit_size
= VBUF
;
3089 strcpy(rs
, "\r\n0,");
3090 #ifdef CONFIG_ISDN_TTY_FAX
3091 if (dev
->global_features
&
3092 ISDN_FEATURE_L3_FCLASS1
)
3094 if (dev
->global_features
&
3095 ISDN_FEATURE_L3_FCLASS2
)
3099 isdn_tty_at_cout(rs
, info
);
3110 #ifdef CONFIG_ISDN_TTY_FAX
3111 return (isdn_tty_cmd_PLUSF_FAX(p
, info
));
3118 * Parse AT+V.. commands
3121 isdn_tty_cmd_PLUSV(char **p
, modem_info
*info
)
3123 atemu
*m
= &info
->emu
;
3125 static char *vcmd
[] =
3126 {"NH", "IP", "LS", "RX", "SD", "SM", "TX", "DD", NULL
};
3134 if (!strncmp(vcmd
[i
], p
[0], 2)) {
3142 /* AT+VNH - Auto hangup feature */
3146 isdn_tty_at_cout("\r\n1", info
);
3156 isdn_tty_at_cout("\r\n1", info
);
3167 /* AT+VIP - Reset all voice parameters */
3168 isdn_tty_modem_reset_vpar(m
);
3171 /* AT+VLS - Select device, accept incoming call */
3175 sprintf(rs
, "\r\n%d", m
->vpar
[0]);
3176 isdn_tty_at_cout(rs
, info
);
3191 isdn_tty_at_cout("\r\n0,2", info
);
3202 /* AT+VRX - Start recording */
3205 if (info
->online
!= 1) {
3206 isdn_tty_modem_result(RESULT_NO_ANSWER
, info
);
3209 info
->dtmf_state
= isdn_audio_dtmf_init(info
->dtmf_state
);
3210 if (!info
->dtmf_state
) {
3211 printk(KERN_WARNING
"isdn_tty: Couldn't malloc dtmf state\n");
3214 info
->silence_state
= isdn_audio_silence_init(info
->silence_state
);
3215 if (!info
->silence_state
) {
3216 printk(KERN_WARNING
"isdn_tty: Couldn't malloc silence state\n");
3219 if (m
->vpar
[3] < 5) {
3220 info
->adpcmr
= isdn_audio_adpcm_init(info
->adpcmr
, m
->vpar
[3]);
3221 if (!info
->adpcmr
) {
3222 printk(KERN_WARNING
"isdn_tty: Couldn't malloc adpcm state\n");
3226 #ifdef ISDN_DEBUG_AT
3227 printk(KERN_DEBUG
"AT: +VRX\n");
3230 isdn_tty_modem_result(RESULT_CONNECT
, info
);
3234 /* AT+VSD - Silence detection */
3238 sprintf(rs
, "\r\n<%d>,<%d>",
3241 isdn_tty_at_cout(rs
, info
);
3245 if ((*p
[0] >= '0') && (*p
[0] <= '9')) {
3246 par1
= isdn_getnum(p
);
3247 if ((par1
< 0) || (par1
> 31))
3252 par2
= isdn_getnum(p
);
3253 if ((par2
< 0) || (par2
> 255))
3261 isdn_tty_at_cout("\r\n<0-31>,<0-255>",
3272 /* AT+VSM - Select compression */
3276 sprintf(rs
, "\r\n<%d>,<%d><8000>",
3279 isdn_tty_at_cout(rs
, info
);
3289 par1
= isdn_getnum(p
);
3290 if ((par1
< 2) || (par1
> 6))
3296 isdn_tty_at_cout("\r\n2;ADPCM;2;0;(8000)\r\n",
3298 isdn_tty_at_cout("3;ADPCM;3;0;(8000)\r\n",
3300 isdn_tty_at_cout("4;ADPCM;4;0;(8000)\r\n",
3302 isdn_tty_at_cout("5;ALAW;8;0;(8000)\r\n",
3304 isdn_tty_at_cout("6;ULAW;8;0;(8000)\r\n",
3316 /* AT+VTX - Start sending */
3319 if (info
->online
!= 1) {
3320 isdn_tty_modem_result(RESULT_NO_ANSWER
, info
);
3323 info
->dtmf_state
= isdn_audio_dtmf_init(info
->dtmf_state
);
3324 if (!info
->dtmf_state
) {
3325 printk(KERN_WARNING
"isdn_tty: Couldn't malloc dtmf state\n");
3328 if (m
->vpar
[3] < 5) {
3329 info
->adpcms
= isdn_audio_adpcm_init(info
->adpcms
, m
->vpar
[3]);
3330 if (!info
->adpcms
) {
3331 printk(KERN_WARNING
"isdn_tty: Couldn't malloc adpcm state\n");
3335 #ifdef ISDN_DEBUG_AT
3336 printk(KERN_DEBUG
"AT: +VTX\n");
3340 isdn_tty_modem_result(RESULT_CONNECT
, info
);
3344 /* AT+VDD - DTMF detection */
3348 sprintf(rs
, "\r\n<%d>,<%d>",
3351 isdn_tty_at_cout(rs
, info
);
3355 if ((*p
[0] >= '0') && (*p
[0] <= '9')) {
3356 if (info
->online
!= 1)
3358 par1
= isdn_getnum(p
);
3359 if ((par1
< 0) || (par1
> 15))
3364 par2
= isdn_getnum(p
);
3365 if ((par2
< 0) || (par2
> 255))
3369 cmd
.driver
= info
->isdn_driver
;
3370 cmd
.command
= ISDN_CMD_AUDIO
;
3371 cmd
.arg
= info
->isdn_channel
+ (ISDN_AUDIO_SETDD
<< 8);
3372 cmd
.parm
.num
[0] = par1
;
3373 cmd
.parm
.num
[1] = par2
;
3379 isdn_tty_at_cout("\r\n<0-15>,<0-255>",
3394 #endif /* CONFIG_ISDN_AUDIO */
3397 * Parse and perform an AT-command-line.
3400 isdn_tty_parse_at(modem_info
*info
)
3402 atemu
*m
= &info
->emu
;
3404 char ds
[ISDN_MSNLEN
];
3406 #ifdef ISDN_DEBUG_AT
3407 printk(KERN_DEBUG
"AT: '%s'\n", m
->mdmcmd
);
3409 for (p
= &m
->mdmcmd
[2]; *p
;) {
3415 /* A - Accept incoming call */
3417 isdn_tty_cmd_ATA(info
);
3421 if (info
->msr
& UART_MSR_DCD
)
3423 if (info
->msr
& UART_MSR_RI
) {
3424 isdn_tty_modem_result(RESULT_NO_CARRIER
, info
);
3427 isdn_tty_getdial(++p
, ds
, sizeof ds
);
3429 if (!strlen(m
->msn
))
3430 isdn_tty_modem_result(RESULT_NO_MSN_EAZ
, info
);
3431 else if (strlen(ds
))
3432 isdn_tty_dial(ds
, info
, m
);
3437 /* E - Turn Echo on/off */
3439 switch (isdn_getnum(&p
)) {
3441 m
->mdmreg
[REG_ECHO
] &= ~BIT_ECHO
;
3444 m
->mdmreg
[REG_ECHO
] |= BIT_ECHO
;
3451 /* H - On/Off-hook */
3456 isdn_tty_on_hook(info
);
3460 isdn_tty_off_hook();
3463 isdn_tty_on_hook(info
);
3468 /* I - Information */
3470 isdn_tty_at_cout("\r\nLinux ISDN", info
);
3478 isdn_tty_report(info
);
3482 snprintf(ds
, sizeof(ds
), "\r\n%d", info
->emu
.charge
);
3483 isdn_tty_at_cout(ds
, info
);
3488 #ifdef DUMMY_HAYES_AT
3491 /* only for be compilant with common scripts */
3500 if (info
->msr
& UART_MSR_DCD
)
3501 /* if B-Channel is up */
3502 isdn_tty_modem_result((m
->mdmreg
[REG_L2PROT
] == ISDN_PROTO_L2_MODEM
) ? RESULT_CONNECT
: RESULT_CONNECT64000
, info
);
3504 isdn_tty_modem_result(RESULT_NO_CARRIER
, info
);
3507 /* Q - Turn Emulator messages on/off */
3509 switch (isdn_getnum(&p
)) {
3511 m
->mdmreg
[REG_RESP
] |= BIT_RESP
;
3514 m
->mdmreg
[REG_RESP
] &= ~BIT_RESP
;
3521 /* S - Set/Get Register */
3523 if (isdn_tty_cmd_ATS(&p
, info
))
3527 /* V - Numeric or ASCII Emulator-messages */
3529 switch (isdn_getnum(&p
)) {
3531 m
->mdmreg
[REG_RESP
] |= BIT_RESPNUM
;
3534 m
->mdmreg
[REG_RESP
] &= ~BIT_RESPNUM
;
3541 /* Z - Load Registers from Profile */
3543 if (info
->msr
& UART_MSR_DCD
) {
3545 isdn_tty_on_hook(info
);
3547 isdn_tty_modem_reset_regs(info
, 1);
3552 #ifdef CONFIG_ISDN_AUDIO
3555 if (isdn_tty_cmd_PLUSF(&p
, info
))
3559 if ((!(m
->mdmreg
[REG_SI1
] & 1)) ||
3560 (m
->mdmreg
[REG_L2PROT
] == ISDN_PROTO_L2_MODEM
))
3563 if (isdn_tty_cmd_PLUSV(&p
, info
))
3566 #endif /* CONFIG_ISDN_AUDIO */
3567 case 'S': /* SUSPEND */
3569 isdn_tty_get_msnstr(ds
, &p
);
3570 isdn_tty_suspend(ds
, info
, m
);
3572 case 'R': /* RESUME */
3574 isdn_tty_get_msnstr(ds
, &p
);
3575 isdn_tty_resume(ds
, info
, m
);
3577 case 'M': /* MESSAGE */
3579 isdn_tty_send_msg(info
, m
, p
);
3587 if (isdn_tty_cmd_ATand(&p
, info
))
3594 #ifdef CONFIG_ISDN_AUDIO
3597 isdn_tty_modem_result(RESULT_OK
, info
);
3600 /* Need own toupper() because standard-toupper is not available
3603 #define my_toupper(c) (((c >= 'a') && (c <= 'z')) ? (c & 0xdf) : c)
3606 * Perform line-editing of AT-commands
3610 * count length of buffer
3611 * channel index to line (minor-device)
3614 isdn_tty_edit_at(const char *p
, int count
, modem_info
*info
)
3616 atemu
*m
= &info
->emu
;
3622 for (cnt
= count
; cnt
> 0; p
++, cnt
--) {
3625 if (c
== m
->mdmreg
[REG_CR
] || c
== m
->mdmreg
[REG_LF
]) {
3626 /* Separator (CR or LF) */
3627 m
->mdmcmd
[m
->mdmcmdl
] = 0;
3628 if (m
->mdmreg
[REG_ECHO
] & BIT_ECHO
) {
3631 isdn_tty_at_cout(eb
, info
);
3633 if ((m
->mdmcmdl
>= 2) && (!(strncmp(m
->mdmcmd
, "AT", 2))))
3634 isdn_tty_parse_at(info
);
3638 if (c
== m
->mdmreg
[REG_BS
] && m
->mdmreg
[REG_BS
] < 128) {
3639 /* Backspace-Function */
3640 if ((m
->mdmcmdl
> 2) || (!m
->mdmcmdl
)) {
3643 if (m
->mdmreg
[REG_ECHO
] & BIT_ECHO
)
3644 isdn_tty_at_cout("\b", info
);
3649 if (m
->mdmreg
[REG_ECHO
] & BIT_ECHO
) {
3652 isdn_tty_at_cout(eb
, info
);
3654 if (m
->mdmcmdl
< 255) {
3656 switch (m
->mdmcmdl
) {
3659 m
->mdmcmd
[m
->mdmcmdl
] = c
;
3660 m
->mdmcmd
[++m
->mdmcmdl
] = 0;
3664 /* Fall through, check for 'A' */
3667 m
->mdmcmd
[m
->mdmcmdl
] = c
;
3668 m
->mdmcmd
[++m
->mdmcmdl
] = 0;
3672 m
->mdmcmd
[m
->mdmcmdl
] = c
;
3673 m
->mdmcmd
[++m
->mdmcmdl
] = 0;
3682 * Switch all modem-channels who are online and got a valid
3683 * escape-sequence 1.5 seconds ago, to command-mode.
3684 * This function is called every second via timer-interrupt from within
3685 * timer-dispatcher isdn_timer_function()
3688 isdn_tty_modem_escape(void)
3694 for (i
= 0; i
< ISDN_MAX_CHANNELS
; i
++)
3695 if (USG_MODEM(dev
->usage
[i
]) && (midx
= dev
->m_idx
[i
]) >= 0) {
3696 modem_info
*info
= &dev
->mdm
.info
[midx
];
3699 if ((info
->emu
.pluscount
== 3) &&
3701 info
->emu
.lastplus
+ PLUSWAIT2
)) {
3702 info
->emu
.pluscount
= 0;
3704 isdn_tty_modem_result(RESULT_OK
, info
);
3708 isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS
, ton
);
3712 * Put a RING-message to all modem-channels who have the RI-bit set.
3713 * This function is called every second via timer-interrupt from within
3714 * timer-dispatcher isdn_timer_function()
3717 isdn_tty_modem_ring(void)
3722 for (i
= 0; i
< ISDN_MAX_CHANNELS
; i
++) {
3723 modem_info
*info
= &dev
->mdm
.info
[i
];
3724 if (info
->msr
& UART_MSR_RI
) {
3726 isdn_tty_modem_result(RESULT_RING
, info
);
3729 isdn_timer_ctrl(ISDN_TIMER_MODEMRING
, ton
);
3733 * For all online tty's, try sending data to
3737 isdn_tty_modem_xmit(void)
3742 for (i
= 0; i
< ISDN_MAX_CHANNELS
; i
++) {
3743 modem_info
*info
= &dev
->mdm
.info
[i
];
3746 isdn_tty_senddown(info
);
3747 isdn_tty_tint(info
);
3750 isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT
, ton
);
3754 * Check all channels if we have a 'no carrier' timeout.
3755 * Timeout value is set by Register S7.
3758 isdn_tty_carrier_timeout(void)
3763 for (i
= 0; i
< ISDN_MAX_CHANNELS
; i
++) {
3764 modem_info
*info
= &dev
->mdm
.info
[i
];
3767 if (info
->emu
.carrierwait
++ > info
->emu
.mdmreg
[REG_WAITC
]) {
3769 isdn_tty_modem_result(RESULT_NO_CARRIER
, info
);
3770 isdn_tty_modem_hup(info
, 1);
3774 isdn_timer_ctrl(ISDN_TIMER_CARRIER
, ton
);