2 * Asterisk -- An open source telephony toolkit.
4 * Copyright (C) 1999 - 2008, Digium, Inc.
6 * Mark Spencer <markster@digium.com>
8 * See http://www.asterisk.org for more information about
9 * the Asterisk project. Please do not directly contact
10 * any of the maintainers of this project for assistance;
11 * the project provides a web site, mailing lists and IRC
12 * channels for your use.
14 * This program is free software, distributed under the terms of
15 * the GNU General Public License Version 2. See the LICENSE file
16 * at the top of the source tree.
21 * \brief DAHDI for Pseudo TDM
23 * \author Mark Spencer <markster@digium.com>
25 * Connects to the DAHDI telephony library as well as
26 * libpri. Libpri is optional and needed only if you are
27 * going to use ISDN connections.
29 * You need to install libraries before you attempt to compile
30 * and install the DAHDI channel.
32 * \ingroup channel_drivers
34 * \todo Deprecate the "musiconhold" configuration option post 1.4
37 /*! \li \ref chan_dahdi.c uses the configuration file \ref chan_dahdi.conf
38 * \addtogroup configuration_file
41 /*! \page chan_dahdi.conf chan_dahdi.conf
42 * \verbinclude chan_dahdi.conf.sample
46 <use type="module">res_smdi</use>
47 <depend>dahdi</depend>
48 <depend>tonezone</depend>
49 <use type="external">pri</use>
50 <use type="external">ss7</use>
51 <use type="external">openr2</use>
52 <support_level>core</support_level>
57 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
59 #if defined(__NetBSD__) || defined(__FreeBSD__)
63 #include <sys/signal.h>
68 #include "sig_analog.h"
69 /* Analog signaling is currently still present in chan_dahdi for use with
70 * radio. Sig_analog does not currently handle any radio operations. If
71 * radio only uses analog signaling, then the radio handling logic could
72 * be placed in sig_analog and the duplicated code could be removed.
78 #error "Upgrade your libpri"
80 #endif /* defined(HAVE_PRI) */
84 #if !defined(LIBSS7_ABI_COMPATIBILITY)
85 #error "Upgrade your libss7"
86 #elif LIBSS7_ABI_COMPATIBILITY != 2
87 #error "Your installed libss7 is not compatible"
89 #endif /* defined(HAVE_SS7) */
91 #if defined(HAVE_OPENR2)
92 /* put this here until sig_mfcr2 comes along */
93 #define SIG_MFCR2_MAX_CHANNELS 672 /*!< No more than a DS3 per trunk group */
94 #endif /* defined(HAVE_OPENR2) */
96 #include "asterisk/lock.h"
97 #include "asterisk/channel.h"
98 #include "asterisk/config.h"
99 #include "asterisk/module.h"
100 #include "asterisk/pbx.h"
101 #include "asterisk/file.h"
102 #include "asterisk/ulaw.h"
103 #include "asterisk/alaw.h"
104 #include "asterisk/callerid.h"
105 #include "asterisk/adsi.h"
106 #include "asterisk/cli.h"
107 #include "asterisk/pickup.h"
108 #include "asterisk/features.h"
109 #include "asterisk/musiconhold.h"
110 #include "asterisk/say.h"
111 #include "asterisk/tdd.h"
112 #include "asterisk/app.h"
113 #include "asterisk/dsp.h"
114 #include "asterisk/astdb.h"
115 #include "asterisk/manager.h"
116 #include "asterisk/causes.h"
117 #include "asterisk/term.h"
118 #include "asterisk/utils.h"
119 #include "asterisk/transcap.h"
120 #include "asterisk/stringfields.h"
121 #include "asterisk/abstract_jb.h"
122 #include "asterisk/smdi.h"
123 #include "asterisk/devicestate.h"
124 #include "asterisk/paths.h"
125 #include "asterisk/ccss.h"
126 #include "asterisk/data.h"
127 #include "asterisk/features_config.h"
128 #include "asterisk/bridge.h"
129 #include "asterisk/stasis_channels.h"
130 #include "asterisk/parking.h"
131 #include "asterisk/format_cache.h"
132 #include "chan_dahdi.h"
133 #include "dahdi/bridge_native_dahdi.h"
136 <application name="DAHDISendKeypadFacility" language="en_US">
138 Send digits out of band over a PRI.
141 <parameter name="digits" required="true" />
144 <para>This application will send the given string of digits in a Keypad
145 Facility IE over the current channel.</para>
148 <application name="DAHDISendCallreroutingFacility" language="en_US">
150 Send an ISDN call rerouting/deflection facility message.
153 <parameter name="destination" required="true">
154 <para>Destination number.</para>
156 <parameter name="original">
157 <para>Original called number.</para>
159 <parameter name="reason">
160 <para>Diversion reason, if not specified defaults to <literal>unknown</literal></para>
164 <para>This application will send an ISDN switch specific call
165 rerouting/deflection facility message over the current channel.
166 Supported switches depend upon the version of libpri in use.</para>
169 <application name="DAHDIAcceptR2Call" language="en_US">
171 Accept an R2 call if its not already accepted (you still need to answer it)
174 <parameter name="charge" required="true">
175 <para>Yes or No.</para>
176 <para>Whether you want to accept the call with charge or without charge.</para>
180 <para>This application will Accept the R2 call either with charge or no charge.</para>
183 <manager name="DAHDITransfer" language="en_US">
185 Transfer DAHDI Channel.
188 <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
189 <parameter name="DAHDIChannel" required="true">
190 <para>DAHDI channel number to transfer.</para>
194 <para>Simulate a flash hook event by the user connected to the channel.</para>
195 <note><para>Valid only for analog channels.</para></note>
198 <manager name="DAHDIHangup" language="en_US">
200 Hangup DAHDI Channel.
203 <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
204 <parameter name="DAHDIChannel" required="true">
205 <para>DAHDI channel number to hangup.</para>
209 <para>Simulate an on-hook event by the user connected to the channel.</para>
210 <note><para>Valid only for analog channels.</para></note>
213 <manager name="DAHDIDialOffhook" language="en_US">
215 Dial over DAHDI channel while offhook.
218 <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
219 <parameter name="DAHDIChannel" required="true">
220 <para>DAHDI channel number to dial digits.</para>
222 <parameter name="Number" required="true">
223 <para>Digits to dial.</para>
227 <para>Generate DTMF control frames to the bridged peer.</para>
230 <manager name="DAHDIDNDon" language="en_US">
232 Toggle DAHDI channel Do Not Disturb status ON.
235 <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
236 <parameter name="DAHDIChannel" required="true">
237 <para>DAHDI channel number to set DND on.</para>
241 <para>Equivalent to the CLI command "dahdi set dnd <variable>channel</variable> on".</para>
242 <note><para>Feature only supported by analog channels.</para></note>
245 <manager name="DAHDIDNDoff" language="en_US">
247 Toggle DAHDI channel Do Not Disturb status OFF.
250 <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
251 <parameter name="DAHDIChannel" required="true">
252 <para>DAHDI channel number to set DND off.</para>
256 <para>Equivalent to the CLI command "dahdi set dnd <variable>channel</variable> off".</para>
257 <note><para>Feature only supported by analog channels.</para></note>
260 <manager name="DAHDIShowChannels" language="en_US">
262 Show status of DAHDI channels.
265 <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
266 <parameter name="DAHDIChannel">
267 <para>Specify the specific channel number to show. Show all channels if zero or not present.</para>
271 <para>Similar to the CLI command "dahdi show channels".</para>
274 <manager name="DAHDIRestart" language="en_US">
276 Fully Restart DAHDI channels (terminates calls).
279 <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
282 <para>Equivalent to the CLI command "dahdi restart".</para>
285 <manager name="PRIShowSpans" language="en_US">
287 Show status of PRI spans.
290 <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
291 <parameter name="Span">
292 <para>Specify the specific span to show. Show all spans if zero or not present.</para>
296 <para>Similar to the CLI command "pri show spans".</para>
299 <manager name="PRIDebugSet" language="en_US">
301 Set PRI debug levels for a span
304 <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
305 <parameter name="Span" required="true">
306 <para>Which span to affect.</para>
308 <parameter name="Level" required="true">
309 <para>What debug level to set. May be a numerical value or a text value from the list below</para>
314 <enum name="intense" />
319 <para>Equivalent to the CLI command "pri set debug <level> span <span>".</para>
322 <manager name="PRIDebugFileSet" language="en_US">
324 Set the file used for PRI debug message output
327 <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
328 <parameter name="File" required="true">
329 <para>Path of file to write debug output.</para>
333 <para>Equivalent to the CLI command "pri set debug file <output-file>"</para>
336 <manager name="PRIDebugFileUnset" language="en_US">
338 Disables file output for PRI debug messages
341 <xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
344 <managerEvent language="en_US" name="AlarmClear">
345 <managerEventInstance class="EVENT_FLAG_SYSTEM">
346 <synopsis>Raised when an alarm is cleared on a DAHDI channel.</synopsis>
348 <parameter name="DAHDIChannel">
349 <para>The DAHDI channel on which the alarm was cleared.</para>
350 <note><para>This is not an Asterisk channel identifier.</para></note>
353 </managerEventInstance>
355 <managerEvent language="en_US" name="SpanAlarmClear">
356 <managerEventInstance class="EVENT_FLAG_SYSTEM">
357 <synopsis>Raised when an alarm is cleared on a DAHDI span.</synopsis>
359 <parameter name="Span">
360 <para>The span on which the alarm was cleared.</para>
363 </managerEventInstance>
365 <managerEvent language="en_US" name="DNDState">
366 <managerEventInstance class="EVENT_FLAG_SYSTEM">
367 <synopsis>Raised when the Do Not Disturb state is changed on a DAHDI channel.</synopsis>
369 <parameter name="DAHDIChannel">
370 <para>The DAHDI channel on which DND status changed.</para>
371 <note><para>This is not an Asterisk channel identifier.</para></note>
373 <parameter name="Status">
375 <enum name="enabled"/>
376 <enum name="disabled"/>
380 </managerEventInstance>
382 <managerEvent language="en_US" name="Alarm">
383 <managerEventInstance class="EVENT_FLAG_SYSTEM">
384 <synopsis>Raised when an alarm is set on a DAHDI channel.</synopsis>
386 <parameter name="DAHDIChannel">
387 <para>The channel on which the alarm occurred.</para>
388 <note><para>This is not an Asterisk channel identifier.</para></note>
390 <parameter name="Alarm">
391 <para>A textual description of the alarm that occurred.</para>
394 </managerEventInstance>
396 <managerEvent language="en_US" name="SpanAlarm">
397 <managerEventInstance class="EVENT_FLAG_SYSTEM">
398 <synopsis>Raised when an alarm is set on a DAHDI span.</synopsis>
400 <parameter name="Span">
401 <para>The span on which the alarm occurred.</para>
403 <parameter name="Alarm">
404 <para>A textual description of the alarm that occurred.</para>
407 </managerEventInstance>
409 <managerEvent language="en_US" name="DAHDIChannel">
410 <managerEventInstance class="EVENT_FLAG_CALL">
411 <synopsis>Raised when a DAHDI channel is created or an underlying technology is associated with a DAHDI channel.</synopsis>
414 <parameter name="DAHDISpan">
415 <para>The DAHDI span associated with this channel.</para>
417 <parameter name="DAHDIChannel">
418 <para>The DAHDI channel associated with this channel.</para>
421 </managerEventInstance>
425 #define SMDI_MD_WAIT_TIMEOUT 1500 /* 1.5 seconds */
427 static const char * const lbostr[] = {
428 "0 db (CSU)/0-133 feet (DSX-1)",
429 "133-266 feet (DSX-1)",
430 "266-399 feet (DSX-1)",
431 "399-533 feet (DSX-1)",
432 "533-655 feet (DSX-1)",
438 /*! Global jitterbuffer configuration - by default, jb is disabled
439 * \note Values shown here match the defaults shown in chan_dahdi.conf.sample */
440 static struct ast_jb_conf default_jbconf =
444 .resync_threshold = 1000,
448 static struct ast_jb_conf global_jbconf;
451 * \note Define ZHONE_HACK to cause us to go off hook and then back on hook when
452 * the user hangs up to reset the state machine so ring works properly.
453 * This is used to be able to support kewlstart by putting the zhone in
454 * groundstart mode since their forward disconnect supervision is entirely
455 * broken even though their documentation says it isn't and their support
456 * is entirely unwilling to provide any assistance with their channel banks
457 * even though their web site says they support their products for life.
459 /* #define ZHONE_HACK */
461 /*! \brief Typically, how many rings before we should send Caller*ID */
462 #define DEFAULT_CIDRINGS 1
464 #define AST_LAW(p) (((p)->law == DAHDI_LAW_ALAW) ? ast_format_alaw : ast_format_ulaw)
467 /*! \brief Signaling types that need to use MF detection should be placed in this macro */
468 #define NEED_MFDETECT(p) (((p)->sig == SIG_FEATDMF) || ((p)->sig == SIG_FEATDMF_TA) || ((p)->sig == SIG_E911) || ((p)->sig == SIG_FGC_CAMA) || ((p)->sig == SIG_FGC_CAMAMF) || ((p)->sig == SIG_FEATB))
470 static const char tdesc[] = "DAHDI Telephony"
471 #if defined(HAVE_PRI) || defined(HAVE_SS7) || defined(HAVE_OPENR2)
473 #if defined(HAVE_PRI)
475 #endif /* defined(HAVE_PRI) */
476 #if defined(HAVE_SS7)
477 #if defined(HAVE_PRI)
479 #endif /* defined(HAVE_PRI) */
481 #endif /* defined(HAVE_SS7) */
482 #if defined(HAVE_OPENR2)
483 #if defined(HAVE_PRI) || defined(HAVE_SS7)
485 #endif /* defined(HAVE_PRI) || defined(HAVE_SS7) */
487 #endif /* defined(HAVE_OPENR2) */
488 #endif /* defined(HAVE_PRI) || defined(HAVE_SS7) || defined(HAVE_OPENR2) */
491 static const char config[] = "chan_dahdi.conf";
494 #define NUM_SPANS DAHDI_MAX_SPANS
499 #define CHAN_PSEUDO -2
501 #define CALLPROGRESS_PROGRESS 1
502 #define CALLPROGRESS_FAX_OUTGOING 2
503 #define CALLPROGRESS_FAX_INCOMING 4
504 #define CALLPROGRESS_FAX (CALLPROGRESS_FAX_INCOMING | CALLPROGRESS_FAX_OUTGOING)
506 #define NUM_CADENCE_MAX 25
507 static int num_cadence = 4;
508 static int user_has_defined_cadences = 0;
510 static int has_pseudo;
512 static struct dahdi_ring_cadence cadences[NUM_CADENCE_MAX] = {
513 { { 125, 125, 2000, 4000 } }, /*!< Quick chirp followed by normal ring */
514 { { 250, 250, 500, 1000, 250, 250, 500, 4000 } }, /*!< British style ring */
515 { { 125, 125, 125, 125, 125, 4000 } }, /*!< Three short bursts */
516 { { 1000, 500, 2500, 5000 } }, /*!< Long ring */
519 /*! \brief cidrings says in which pause to transmit the cid information, where the first pause
520 * is 1, the second pause is 2 and so on.
523 static int cidrings[NUM_CADENCE_MAX] = {
524 2, /*!< Right after first long ring */
525 4, /*!< Right after long part */
526 3, /*!< After third chirp */
527 2, /*!< Second spell */
530 /* ETSI EN300 659-1 specifies the ring pulse between 200 and 300 mS */
531 static struct dahdi_ring_cadence AS_RP_cadence = {{250, 10000}};
533 #define ISTRUNK(p) ((p->sig == SIG_FXSLS) || (p->sig == SIG_FXSKS) || \
534 (p->sig == SIG_FXSGS) || (p->sig == SIG_PRI))
536 #define CANBUSYDETECT(p) (ISTRUNK(p) || (p->sig & (SIG_EM | SIG_EM_E1 | SIG_SF)) /* || (p->sig & __DAHDI_SIG_FXO) */)
537 #define CANPROGRESSDETECT(p) (ISTRUNK(p) || (p->sig & (SIG_EM | SIG_EM_E1 | SIG_SF)) /* || (p->sig & __DAHDI_SIG_FXO) */)
539 static char defaultcic[64] = "";
540 static char defaultozz[64] = "";
542 /*! Run this script when the MWI state changes on an FXO line, if mwimonitor is enabled */
543 static char mwimonitornotify[PATH_MAX] = "";
544 #ifndef HAVE_DAHDI_LINEREVERSE_VMWI
545 static int mwisend_rpas = 0;
548 static char progzone[10] = "";
550 static int usedistinctiveringdetection = 0;
551 static int distinctiveringaftercid = 0;
553 static int numbufs = 4;
555 static int mwilevel = 512;
556 static int dtmfcid_level = 256;
558 #define REPORT_CHANNEL_ALARMS 1
559 #define REPORT_SPAN_ALARMS 2
560 static int report_alarms = REPORT_CHANNEL_ALARMS;
563 static int pridebugfd = -1;
564 static char pridebugfilename[1024] = "";
567 /*! \brief Wait up to 16 seconds for first digit (FXO logic) */
568 static int firstdigittimeout = 16000;
570 /*! \brief How long to wait for following digits (FXO logic) */
571 static int gendigittimeout = 8000;
573 /*! \brief How long to wait for an extra digit, if there is an ambiguous match */
574 static int matchdigittimeout = 3000;
576 /*! \brief Protect the interface list (of dahdi_pvt's) */
577 AST_MUTEX_DEFINE_STATIC(iflock);
580 static int ifcount = 0;
583 AST_MUTEX_DEFINE_STATIC(pridebugfdlock);
586 /*! \brief Protect the monitoring thread, so only one process can kill or start it, and not
587 when it's doing something critical. */
588 AST_MUTEX_DEFINE_STATIC(monlock);
590 /*! \brief This is the thread for the monitor which checks for input on the channels
591 which are not currently in use. */
592 static pthread_t monitor_thread = AST_PTHREADT_NULL;
593 static ast_cond_t ss_thread_complete;
594 AST_MUTEX_DEFINE_STATIC(ss_thread_lock);
595 AST_MUTEX_DEFINE_STATIC(restart_lock);
596 static int ss_thread_count = 0;
597 static int num_restart_pending = 0;
599 static int restart_monitor(void);
601 static int dahdi_sendtext(struct ast_channel *c, const char *text);
603 static void mwi_event_cb(void *userdata, struct stasis_subscription *sub, struct stasis_message *msg)
605 /* This module does not handle MWI in an event-based manner. However, it
606 * subscribes to MWI for each mailbox that is configured so that the core
607 * knows that we care about it. Then, chan_dahdi will get the MWI from the
608 * event cache instead of checking the mailbox directly. */
611 /*! \brief Avoid the silly dahdi_getevent which ignores a bunch of events */
612 static inline int dahdi_get_event(int fd)
615 if (ioctl(fd, DAHDI_GETEVENT, &j) == -1)
620 /*! \brief Avoid the silly dahdi_waitevent which ignores a bunch of events */
621 static inline int dahdi_wait_event(int fd)
624 i = DAHDI_IOMUX_SIGEVENT;
625 if (ioctl(fd, DAHDI_IOMUX, &i) == -1)
627 if (ioctl(fd, DAHDI_GETEVENT, &j) == -1)
632 /*! Chunk size to read -- we use 20ms chunks to make things happy. */
633 #define READ_SIZE 160
635 #define MASK_AVAIL (1 << 0) /*!< Channel available for PRI use */
636 #define MASK_INUSE (1 << 1) /*!< Channel currently in use */
638 #define CALLWAITING_SILENT_SAMPLES ((300 * 8) / READ_SIZE) /*!< 300 ms */
639 #define CALLWAITING_REPEAT_SAMPLES ((10000 * 8) / READ_SIZE) /*!< 10,000 ms */
640 #define CALLWAITING_SUPPRESS_SAMPLES ((100 * 8) / READ_SIZE) /*!< 100 ms */
641 #define CIDCW_EXPIRE_SAMPLES ((500 * 8) / READ_SIZE) /*!< 500 ms */
642 #define MIN_MS_SINCE_FLASH ((2000) ) /*!< 2000 ms */
643 #define DEFAULT_RINGT ((8000 * 8) / READ_SIZE) /*!< 8,000 ms */
644 #define DEFAULT_DIALTONE_DETECT_TIMEOUT ((10000 * 8) / READ_SIZE) /*!< 10,000 ms */
647 * \brief Configured ring timeout base.
648 * \note Value computed from "ringtimeout" read in from chan_dahdi.conf if it exists.
650 static int ringt_base = DEFAULT_RINGT;
652 #if defined(HAVE_SS7)
655 struct sig_ss7_linkset ss7;
658 static struct dahdi_ss7 linksets[NUM_SPANS];
660 static int cur_ss7type = -1;
661 static int cur_slc = -1;
662 static int cur_linkset = -1;
663 static int cur_pointcode = -1;
664 static int cur_cicbeginswith = -1;
665 static int cur_adjpointcode = -1;
666 static int cur_networkindicator = -1;
667 static int cur_defaultdpc = -1;
668 #endif /* defined(HAVE_SS7) */
671 struct dahdi_mfcr2_conf {
672 openr2_variant_t variant;
674 int metering_pulse_timeout;
677 #if defined(OR2_LIB_INTERFACE) && OR2_LIB_INTERFACE > 2
681 #if defined(OR2_LIB_INTERFACE) && OR2_LIB_INTERFACE > 3
682 int dtmf_end_timeout;
684 signed int get_ani_first:2;
685 #if defined(OR2_LIB_INTERFACE) && OR2_LIB_INTERFACE > 1
686 signed int skip_category_request:2;
688 unsigned int call_files:1;
689 unsigned int allow_collect_calls:1;
690 unsigned int charge_calls:1;
691 unsigned int accept_on_offer:1;
692 unsigned int forced_release:1;
693 unsigned int double_answer:1;
694 signed int immediate_accept:2;
695 #if defined(OR2_LIB_INTERFACE) && OR2_LIB_INTERFACE > 2
696 signed int dtmf_dialing:2;
697 signed int dtmf_detection:2;
699 char logdir[OR2_MAX_PATH];
700 char r2proto_file[OR2_MAX_PATH];
701 openr2_log_level_t loglevel;
702 openr2_calling_party_category_t category;
705 /* MFC-R2 pseudo-link structure */
707 pthread_t r2master; /*!< Thread of master */
708 openr2_context_t *protocol_context; /*!< OpenR2 context handle */
709 struct dahdi_pvt *pvts[SIG_MFCR2_MAX_CHANNELS]; /*!< Member channel pvt structs */
710 int numchans; /*!< Number of channels in this R2 block */
711 struct dahdi_mfcr2_conf conf; /*!< Configuration used to setup this pseudo-link */
714 /* malloc'd array of malloc'd r2links */
715 static struct dahdi_mfcr2 **r2links;
716 /* how many r2links have been malloc'd */
717 static int r2links_count = 0;
719 #endif /* HAVE_OPENR2 */
724 int dchannels[SIG_PRI_NUM_DCHANS]; /*!< What channel are the dchannels on */
725 int mastertrunkgroup; /*!< What trunk group is our master */
726 int prilogicalspan; /*!< Logical span number within trunk group */
727 struct sig_pri_span pri;
730 static struct dahdi_pri pris[NUM_SPANS];
732 #if defined(HAVE_PRI_CCSS)
733 /*! DAHDI PRI CCSS agent and monitor type name. */
734 static const char dahdi_pri_cc_type[] = "DAHDI/PRI";
735 #endif /* defined(HAVE_PRI_CCSS) */
738 /*! Shut up the compiler */
742 /* Polarity states */
743 #define POLARITY_IDLE 0
744 #define POLARITY_REV 1
746 const char * const subnames[] = {
752 #define DATA_EXPORT_DAHDI_PVT(MEMBER) \
753 MEMBER(dahdi_pvt, cid_rxgain, AST_DATA_DOUBLE) \
754 MEMBER(dahdi_pvt, rxgain, AST_DATA_DOUBLE) \
755 MEMBER(dahdi_pvt, txgain, AST_DATA_DOUBLE) \
756 MEMBER(dahdi_pvt, txdrc, AST_DATA_DOUBLE) \
757 MEMBER(dahdi_pvt, rxdrc, AST_DATA_DOUBLE) \
758 MEMBER(dahdi_pvt, adsi, AST_DATA_BOOLEAN) \
759 MEMBER(dahdi_pvt, answeronpolarityswitch, AST_DATA_BOOLEAN) \
760 MEMBER(dahdi_pvt, busydetect, AST_DATA_BOOLEAN) \
761 MEMBER(dahdi_pvt, callreturn, AST_DATA_BOOLEAN) \
762 MEMBER(dahdi_pvt, callwaiting, AST_DATA_BOOLEAN) \
763 MEMBER(dahdi_pvt, callwaitingcallerid, AST_DATA_BOOLEAN) \
764 MEMBER(dahdi_pvt, cancallforward, AST_DATA_BOOLEAN) \
765 MEMBER(dahdi_pvt, canpark, AST_DATA_BOOLEAN) \
766 MEMBER(dahdi_pvt, confirmanswer, AST_DATA_BOOLEAN) \
767 MEMBER(dahdi_pvt, destroy, AST_DATA_BOOLEAN) \
768 MEMBER(dahdi_pvt, didtdd, AST_DATA_BOOLEAN) \
769 MEMBER(dahdi_pvt, dialednone, AST_DATA_BOOLEAN) \
770 MEMBER(dahdi_pvt, dialing, AST_DATA_BOOLEAN) \
771 MEMBER(dahdi_pvt, digital, AST_DATA_BOOLEAN) \
772 MEMBER(dahdi_pvt, dnd, AST_DATA_BOOLEAN) \
773 MEMBER(dahdi_pvt, echobreak, AST_DATA_BOOLEAN) \
774 MEMBER(dahdi_pvt, echocanbridged, AST_DATA_BOOLEAN) \
775 MEMBER(dahdi_pvt, echocanon, AST_DATA_BOOLEAN) \
776 MEMBER(dahdi_pvt, faxhandled, AST_DATA_BOOLEAN) \
777 MEMBER(dahdi_pvt, usefaxbuffers, AST_DATA_BOOLEAN) \
778 MEMBER(dahdi_pvt, bufferoverrideinuse, AST_DATA_BOOLEAN) \
779 MEMBER(dahdi_pvt, firstradio, AST_DATA_BOOLEAN) \
780 MEMBER(dahdi_pvt, hanguponpolarityswitch, AST_DATA_BOOLEAN) \
781 MEMBER(dahdi_pvt, hardwaredtmf, AST_DATA_BOOLEAN) \
782 MEMBER(dahdi_pvt, hidecallerid, AST_DATA_BOOLEAN) \
783 MEMBER(dahdi_pvt, hidecalleridname, AST_DATA_BOOLEAN) \
784 MEMBER(dahdi_pvt, ignoredtmf, AST_DATA_BOOLEAN) \
785 MEMBER(dahdi_pvt, immediate, AST_DATA_BOOLEAN) \
786 MEMBER(dahdi_pvt, inalarm, AST_DATA_BOOLEAN) \
787 MEMBER(dahdi_pvt, mate, AST_DATA_BOOLEAN) \
788 MEMBER(dahdi_pvt, outgoing, AST_DATA_BOOLEAN) \
789 MEMBER(dahdi_pvt, permcallwaiting, AST_DATA_BOOLEAN) \
790 MEMBER(dahdi_pvt, priindication_oob, AST_DATA_BOOLEAN) \
791 MEMBER(dahdi_pvt, priexclusive, AST_DATA_BOOLEAN) \
792 MEMBER(dahdi_pvt, pulse, AST_DATA_BOOLEAN) \
793 MEMBER(dahdi_pvt, pulsedial, AST_DATA_BOOLEAN) \
794 MEMBER(dahdi_pvt, restartpending, AST_DATA_BOOLEAN) \
795 MEMBER(dahdi_pvt, restrictcid, AST_DATA_BOOLEAN) \
796 MEMBER(dahdi_pvt, threewaycalling, AST_DATA_BOOLEAN) \
797 MEMBER(dahdi_pvt, transfer, AST_DATA_BOOLEAN) \
798 MEMBER(dahdi_pvt, use_callerid, AST_DATA_BOOLEAN) \
799 MEMBER(dahdi_pvt, use_callingpres, AST_DATA_BOOLEAN) \
800 MEMBER(dahdi_pvt, usedistinctiveringdetection, AST_DATA_BOOLEAN) \
801 MEMBER(dahdi_pvt, dahditrcallerid, AST_DATA_BOOLEAN) \
802 MEMBER(dahdi_pvt, transfertobusy, AST_DATA_BOOLEAN) \
803 MEMBER(dahdi_pvt, mwimonitor_neon, AST_DATA_BOOLEAN) \
804 MEMBER(dahdi_pvt, mwimonitor_fsk, AST_DATA_BOOLEAN) \
805 MEMBER(dahdi_pvt, mwimonitor_rpas, AST_DATA_BOOLEAN) \
806 MEMBER(dahdi_pvt, mwimonitoractive, AST_DATA_BOOLEAN) \
807 MEMBER(dahdi_pvt, mwisendactive, AST_DATA_BOOLEAN) \
808 MEMBER(dahdi_pvt, inservice, AST_DATA_BOOLEAN) \
809 MEMBER(dahdi_pvt, locallyblocked, AST_DATA_UNSIGNED_INTEGER) \
810 MEMBER(dahdi_pvt, remotelyblocked, AST_DATA_UNSIGNED_INTEGER) \
811 MEMBER(dahdi_pvt, manages_span_alarms, AST_DATA_BOOLEAN) \
812 MEMBER(dahdi_pvt, use_smdi, AST_DATA_BOOLEAN) \
813 MEMBER(dahdi_pvt, context, AST_DATA_STRING) \
814 MEMBER(dahdi_pvt, defcontext, AST_DATA_STRING) \
815 MEMBER(dahdi_pvt, description, AST_DATA_STRING) \
816 MEMBER(dahdi_pvt, exten, AST_DATA_STRING) \
817 MEMBER(dahdi_pvt, language, AST_DATA_STRING) \
818 MEMBER(dahdi_pvt, mohinterpret, AST_DATA_STRING) \
819 MEMBER(dahdi_pvt, mohsuggest, AST_DATA_STRING) \
820 MEMBER(dahdi_pvt, parkinglot, AST_DATA_STRING)
822 AST_DATA_STRUCTURE(dahdi_pvt, DATA_EXPORT_DAHDI_PVT);
824 static struct dahdi_pvt *iflist = NULL; /*!< Main interface list start */
825 static struct dahdi_pvt *ifend = NULL; /*!< Main interface list end */
827 #if defined(HAVE_PRI)
829 struct sig_pri_span *pri;
830 AST_LIST_ENTRY(doomed_pri) list;
832 static AST_LIST_HEAD_STATIC(doomed_pris, doomed_pri);
834 static void pri_destroy_span(struct sig_pri_span *pri);
836 static struct dahdi_parms_pseudo {
837 int buf_no; /*!< Number of buffers */
838 int buf_policy; /*!< Buffer policy */
839 int faxbuf_no; /*!< Number of Fax buffers */
840 int faxbuf_policy; /*!< Fax buffer policy */
841 } dahdi_pseudo_parms;
842 #endif /* defined(HAVE_PRI) */
844 /*! \brief Channel configuration from chan_dahdi.conf .
845 * This struct is used for parsing the [channels] section of chan_dahdi.conf.
846 * Generally there is a field here for every possible configuration item.
848 * The state of fields is saved along the parsing and whenever a 'channel'
849 * statement is reached, the current dahdi_chan_conf is used to configure the
850 * channel (struct dahdi_pvt)
852 * \see dahdi_chan_init for the default values.
854 struct dahdi_chan_conf {
855 struct dahdi_pvt chan;
857 struct dahdi_pri pri;
860 #if defined(HAVE_SS7)
861 struct dahdi_ss7 ss7;
862 #endif /* defined(HAVE_SS7) */
865 struct dahdi_mfcr2_conf mfcr2;
867 struct dahdi_params timing;
868 int is_sig_auto; /*!< Use channel signalling from DAHDI? */
869 /*! Continue configuration even if a channel is not there. */
870 int ignore_failed_channels;
873 * \brief The serial port to listen for SMDI data on
874 * \note Set from the "smdiport" string read in from chan_dahdi.conf
876 char smdi_port[SMDI_MAX_FILENAME_LEN];
879 * \brief Don't create channels below this number
880 * \note by default is 0 (no limit)
882 int wanted_channels_start;
885 * \brief Don't create channels above this number (infinity by default)
886 * \note by default is 0 (special value that means "no limit").
888 int wanted_channels_end;
891 /*! returns a new dahdi_chan_conf with default values (by-value) */
892 static struct dahdi_chan_conf dahdi_chan_conf_default(void)
894 /* recall that if a field is not included here it is initialized
897 struct dahdi_chan_conf conf = {
901 .switchtype = PRI_SWITCH_NI2,
902 .dialplan = PRI_UNKNOWN + 1,
903 .localdialplan = PRI_NATIONAL_ISDN + 1,
905 .qsigchannelmapping = DAHDI_CHAN_MAPPING_PHYSICAL,
907 #if defined(HAVE_PRI_CCSS)
908 .cc_ptmp_recall_mode = 1,/* specificRecall */
909 .cc_qsig_signaling_link_req = 1,/* retain */
910 .cc_qsig_signaling_link_rsp = 1,/* retain */
911 #endif /* defined(HAVE_PRI_CCSS) */
916 .internationalprefix = "",
917 .nationalprefix = "",
921 .colp_send = SIG_PRI_COLP_UPDATE,
925 #if defined(HAVE_SS7)
927 .called_nai = SS7_NAI_NATIONAL,
928 .calling_nai = SS7_NAI_NATIONAL,
929 .internationalprefix = "",
930 .nationalprefix = "",
931 .subscriberprefix = "",
933 .networkroutedprefix = ""
935 #endif /* defined(HAVE_SS7) */
938 .variant = OR2_VAR_ITU,
939 .mfback_timeout = -1,
940 .metering_pulse_timeout = -1,
944 #if defined(OR2_LIB_INTERFACE) && OR2_LIB_INTERFACE > 1
945 .skip_category_request = -1,
948 .allow_collect_calls = 0,
950 .accept_on_offer = 1,
953 .immediate_accept = -1,
954 #if defined(OR2_LIB_INTERFACE) && OR2_LIB_INTERFACE > 2
956 .dtmf_detection = -1,
957 .dtmf_time_on = OR2_DEFAULT_DTMF_ON,
958 .dtmf_time_off = OR2_DEFAULT_DTMF_OFF,
960 #if defined(OR2_LIB_INTERFACE) && OR2_LIB_INTERFACE > 3
961 .dtmf_end_timeout = -1,
965 .loglevel = OR2_LOG_ERROR | OR2_LOG_WARNING,
966 .category = OR2_CALLING_PARTY_CATEGORY_NATIONAL_SUBSCRIBER
970 .context = "default",
974 .mohinterpret = "default",
979 .cid_signalling = CID_SIG_BELL,
980 .cid_start = CID_START_RING,
981 .dahditrcallerid = 0,
990 .echocancel.head.tap_length = 1,
998 #ifdef HAVE_DAHDI_LINEREVERSE_VMWI
1001 .polarityonanswerdelay = 600,
1003 .sendcalleridafter = DEFAULT_CIDRINGS,
1005 .buf_policy = DAHDI_POLICY_IMMEDIATE,
1008 .cc_params = ast_cc_config_params_init(),
1021 .ignore_failed_channels = 1,
1022 .smdi_port = "/dev/ttyS0",
1029 static struct ast_channel *dahdi_request(const char *type, struct ast_format_cap *cap,
1030 const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor,
1031 const char *data, int *cause);
1032 static int dahdi_digit_begin(struct ast_channel *ast, char digit);
1033 static int dahdi_digit_end(struct ast_channel *ast, char digit, unsigned int duration);
1034 static int dahdi_sendtext(struct ast_channel *c, const char *text);
1035 static int dahdi_call(struct ast_channel *ast, const char *rdest, int timeout);
1036 static int dahdi_hangup(struct ast_channel *ast);
1037 static int dahdi_answer(struct ast_channel *ast);
1038 static struct ast_frame *dahdi_read(struct ast_channel *ast);
1039 static int dahdi_write(struct ast_channel *ast, struct ast_frame *frame);
1040 static struct ast_frame *dahdi_exception(struct ast_channel *ast);
1041 static int dahdi_indicate(struct ast_channel *chan, int condition, const void *data, size_t datalen);
1042 static int dahdi_fixup(struct ast_channel *oldchan, struct ast_channel *newchan);
1043 static int dahdi_setoption(struct ast_channel *chan, int option, void *data, int datalen);
1044 static int dahdi_queryoption(struct ast_channel *chan, int option, void *data, int *datalen);
1045 static int dahdi_func_read(struct ast_channel *chan, const char *function, char *data, char *buf, size_t len);
1046 static int dahdi_func_write(struct ast_channel *chan, const char *function, char *data, const char *value);
1047 static int dahdi_devicestate(const char *data);
1048 static int dahdi_cc_callback(struct ast_channel *inbound, const char *dest, ast_cc_callback_fn callback);
1050 static struct ast_channel_tech dahdi_tech = {
1052 .description = tdesc,
1053 .requester = dahdi_request,
1054 .send_digit_begin = dahdi_digit_begin,
1055 .send_digit_end = dahdi_digit_end,
1056 .send_text = dahdi_sendtext,
1058 .hangup = dahdi_hangup,
1059 .answer = dahdi_answer,
1061 .write = dahdi_write,
1062 .exception = dahdi_exception,
1063 .indicate = dahdi_indicate,
1064 .fixup = dahdi_fixup,
1065 .setoption = dahdi_setoption,
1066 .queryoption = dahdi_queryoption,
1067 .func_channel_read = dahdi_func_read,
1068 .func_channel_write = dahdi_func_write,
1069 .devicestate = dahdi_devicestate,
1070 .cc_callback = dahdi_cc_callback,
1073 #define GET_CHANNEL(p) ((p)->channel)
1075 static enum analog_sigtype dahdisig_to_analogsig(int sig)
1079 return ANALOG_SIG_FXOLS;
1081 return ANALOG_SIG_FXOGS;
1083 return ANALOG_SIG_FXOKS;
1085 return ANALOG_SIG_FXSLS;
1087 return ANALOG_SIG_FXSGS;
1089 return ANALOG_SIG_FXSKS;
1091 return ANALOG_SIG_EMWINK;
1093 return ANALOG_SIG_EM;
1095 return ANALOG_SIG_EM_E1;
1097 return ANALOG_SIG_FEATD;
1099 return ANALOG_SIG_FEATDMF;
1103 return ANALOG_SIG_FGC_CAMA;
1104 case SIG_FGC_CAMAMF:
1105 return ANALOG_SIG_FGC_CAMAMF;
1107 return ANALOG_SIG_FEATB;
1109 return ANALOG_SIG_SFWINK;
1111 return ANALOG_SIG_SF;
1113 return ANALOG_SIG_SF_FEATD;
1114 case SIG_SF_FEATDMF:
1115 return ANALOG_SIG_SF_FEATDMF;
1116 case SIG_FEATDMF_TA:
1117 return ANALOG_SIG_FEATDMF_TA;
1119 return ANALOG_SIG_FEATB;
1126 static int analog_tone_to_dahditone(enum analog_tone tone)
1129 case ANALOG_TONE_RINGTONE:
1130 return DAHDI_TONE_RINGTONE;
1131 case ANALOG_TONE_STUTTER:
1132 return DAHDI_TONE_STUTTER;
1133 case ANALOG_TONE_CONGESTION:
1134 return DAHDI_TONE_CONGESTION;
1135 case ANALOG_TONE_DIALTONE:
1136 return DAHDI_TONE_DIALTONE;
1137 case ANALOG_TONE_DIALRECALL:
1138 return DAHDI_TONE_DIALRECALL;
1139 case ANALOG_TONE_INFO:
1140 return DAHDI_TONE_INFO;
1146 static int analogsub_to_dahdisub(enum analog_sub analogsub)
1150 switch (analogsub) {
1151 case ANALOG_SUB_REAL:
1154 case ANALOG_SUB_CALLWAIT:
1155 index = SUB_CALLWAIT;
1157 case ANALOG_SUB_THREEWAY:
1158 index = SUB_THREEWAY;
1161 ast_log(LOG_ERROR, "Unidentified sub!\n");
1170 * \brief release all members on the doomed pris list
1173 * Called priodically by the monitor threads to release spans marked for
1176 static void release_doomed_pris(void)
1179 struct doomed_pri *entry;
1181 AST_LIST_LOCK(&doomed_pris);
1182 while ((entry = AST_LIST_REMOVE_HEAD(&doomed_pris, list))) {
1183 /* The span destruction must be done with this lock not held */
1184 AST_LIST_UNLOCK(&doomed_pris);
1185 ast_debug(4, "Destroying span %d from doomed queue.\n",
1187 pri_destroy_span(entry->pri);
1189 AST_LIST_LOCK(&doomed_pris);
1191 AST_LIST_UNLOCK(&doomed_pris);
1197 * \brief Queue a span for destruction
1200 * \param pri the span to destroy
1202 * Add a span to the list of spans to be destroyed later on
1203 * by the monitor thread. Allows destroying a span while holding its
1206 static void pri_queue_for_destruction(struct sig_pri_span *pri)
1208 struct doomed_pri *entry;
1210 AST_LIST_LOCK(&doomed_pris);
1211 AST_LIST_TRAVERSE(&doomed_pris, entry, list) {
1212 if (entry->pri == pri) {
1213 AST_LIST_UNLOCK(&doomed_pris);
1217 entry = ast_calloc(sizeof(struct doomed_pri), 1);
1219 /* Nothing useful to do here. Panic? */
1220 ast_log(LOG_WARNING, "Failed allocating memory for a doomed_pri.\n");
1221 AST_LIST_UNLOCK(&doomed_pris);
1225 ast_debug(4, "Queue span %d for destruction.\n", pri->span);
1226 AST_LIST_INSERT_TAIL(&doomed_pris, entry, list);
1227 AST_LIST_UNLOCK(&doomed_pris);
1233 * \brief Send a dial string to DAHDI.
1236 * \param pvt DAHDI private pointer
1237 * \param operation DAHDI dial operation to do to string
1238 * \param dial_str Dial string to send
1240 * \retval 0 on success.
1241 * \retval non-zero on error.
1243 static int dahdi_dial_str(struct dahdi_pvt *pvt, int operation, const char *dial_str)
1248 struct dahdi_dialoperation zo = {
1252 /* Convert the W's to ww. */
1254 for (offset = 0; offset < sizeof(zo.dialstr) - 1; ++offset) {
1259 /* Convert 'W' to "ww" */
1261 if (offset >= sizeof(zo.dialstr) - 3) {
1262 /* No room to expand */
1265 zo.dialstr[offset] = 'w';
1267 zo.dialstr[offset] = 'w';
1270 zo.dialstr[offset] = *pos++;
1272 /* The zo initialization has already terminated the dialstr. */
1274 ast_debug(1, "Channel %d: Dial str '%s' expanded to '%s' sent to DAHDI_DIAL.\n",
1275 pvt->channel, dial_str, zo.dialstr);
1276 res = ioctl(pvt->subs[SUB_REAL].dfd, DAHDI_DIAL, &zo);
1278 ast_log(LOG_WARNING, "Channel %d: Couldn't dial '%s': %s\n",
1279 pvt->channel, dial_str, strerror(errno));
1285 static enum analog_event dahdievent_to_analogevent(int event);
1286 static int bump_gains(struct dahdi_pvt *p);
1287 static int dahdi_setlinear(int dfd, int linear);
1289 static int my_start_cid_detect(void *pvt, int cid_signalling)
1291 struct dahdi_pvt *p = pvt;
1292 int index = SUB_REAL;
1293 p->cs = callerid_new(cid_signalling);
1295 ast_log(LOG_ERROR, "Unable to alloc callerid\n");
1299 dahdi_setlinear(p->subs[index].dfd, 0);
1304 static int my_stop_cid_detect(void *pvt)
1306 struct dahdi_pvt *p = pvt;
1307 int index = SUB_REAL;
1309 callerid_free(p->cs);
1310 dahdi_setlinear(p->subs[index].dfd, p->subs[index].linear);
1314 static int my_get_callerid(void *pvt, char *namebuf, char *numbuf, enum analog_event *ev, size_t timeout)
1316 struct dahdi_pvt *p = pvt;
1317 struct analog_pvt *analog_p = p->sig_pvt;
1318 struct pollfd poller;
1320 int index = SUB_REAL;
1322 unsigned char buf[256];
1325 poller.fd = p->subs[SUB_REAL].dfd;
1326 poller.events = POLLPRI | POLLIN;
1329 res = poll(&poller, 1, timeout);
1331 if (poller.revents & POLLPRI) {
1332 *ev = dahdievent_to_analogevent(dahdi_get_event(p->subs[SUB_REAL].dfd));
1336 if (poller.revents & POLLIN) {
1338 /* Change API: remove cid_signalling from get_callerid, add a new start_cid_detect and stop_cid_detect function
1339 * to enable slin mode and allocate cid detector. get_callerid should be able to be called any number of times until
1340 * either a timeout occurs or CID is detected (returns 0). returning 1 should be event received, and -1 should be
1341 * a failure and die, and returning 2 means no event was received. */
1342 res = read(p->subs[index].dfd, buf, sizeof(buf));
1344 ast_log(LOG_WARNING, "read returned error: %s\n", strerror(errno));
1348 if (analog_p->ringt > 0) {
1349 if (!(--analog_p->ringt)) {
1350 /* only return if we timeout from a ring event */
1355 if (p->cid_signalling == CID_SIG_V23_JP) {
1356 res = callerid_feed_jp(p->cs, buf, res, AST_LAW(p));
1358 res = callerid_feed(p->cs, buf, res, AST_LAW(p));
1362 * The previous diagnostic message output likely
1363 * explains why it failed.
1365 ast_log(LOG_WARNING, "Failed to decode CallerID\n");
1370 callerid_get(p->cs, &name, &num, &flags);
1372 ast_copy_string(namebuf, name, ANALOG_MAX_CID);
1374 ast_copy_string(numbuf, num, ANALOG_MAX_CID);
1376 ast_debug(1, "CallerID number: %s, name: %s, flags=%d\n", num, name, flags);
1381 *ev = ANALOG_EVENT_NONE;
1385 static const char *event2str(int event);
1386 static int restore_gains(struct dahdi_pvt *p);
1388 static int my_distinctive_ring(struct ast_channel *chan, void *pvt, int idx, int *ringdata)
1390 unsigned char buf[256];
1392 int curRingData[RING_PATTERNS];
1398 int checkaftercid = 0;
1400 struct dahdi_pvt *p = pvt;
1401 struct analog_pvt *analog_p = p->sig_pvt;
1403 if (ringdata == NULL) {
1404 ringdata = curRingData;
1409 /* We must have a ring by now, so, if configured, lets try to listen for
1410 * distinctive ringing */
1411 if ((checkaftercid && distinctiveringaftercid) || !checkaftercid) {
1412 /* Clear the current ring data array so we don't have old data in it. */
1413 for (receivedRingT = 0; receivedRingT < RING_PATTERNS; receivedRingT++)
1414 ringdata[receivedRingT] = 0;
1416 if (checkaftercid && distinctiveringaftercid)
1417 ast_verb(3, "Detecting post-CID distinctive ring\n");
1418 /* Check to see if context is what it should be, if not set to be. */
1419 else if (strcmp(p->context,p->defcontext) != 0) {
1420 ast_copy_string(p->context, p->defcontext, sizeof(p->context));
1421 ast_channel_context_set(chan, p->defcontext);
1425 i = DAHDI_IOMUX_READ | DAHDI_IOMUX_SIGEVENT;
1426 if ((res = ioctl(p->subs[idx].dfd, DAHDI_IOMUX, &i))) {
1427 ast_log(LOG_WARNING, "I/O MUX failed: %s\n", strerror(errno));
1431 if (i & DAHDI_IOMUX_SIGEVENT) {
1432 res = dahdi_get_event(p->subs[idx].dfd);
1433 if (res == DAHDI_EVENT_NOALARM) {
1435 analog_p->inalarm = 0;
1437 ast_log(LOG_NOTICE, "Got event %d (%s)...\n", res, event2str(res));
1439 /* Let us detect distinctive ring */
1441 ringdata[receivedRingT] = analog_p->ringt;
1443 if (analog_p->ringt < analog_p->ringt_base/2)
1445 /* Increment the ringT counter so we can match it against
1446 values in chan_dahdi.conf for distinctive ring */
1447 if (++receivedRingT == RING_PATTERNS)
1449 } else if (i & DAHDI_IOMUX_READ) {
1450 res = read(p->subs[idx].dfd, buf, sizeof(buf));
1452 if (errno != ELAST) {
1453 ast_log(LOG_WARNING, "read returned error: %s\n", strerror(errno));
1459 if (analog_p->ringt > 0) {
1460 if (!(--analog_p->ringt)) {
1468 if ((checkaftercid && usedistinctiveringdetection) || !checkaftercid) {
1469 /* this only shows up if you have n of the dring patterns filled in */
1470 ast_verb(3, "Detected ring pattern: %d,%d,%d\n",ringdata[0],ringdata[1],ringdata[2]);
1471 for (counter = 0; counter < 3; counter++) {
1472 /* Check to see if the rings we received match any of the ones in chan_dahdi.conf for this channel */
1474 /* this only shows up if you have n of the dring patterns filled in */
1475 ast_verb(3, "Checking %d,%d,%d\n",
1476 p->drings.ringnum[counter].ring[0],
1477 p->drings.ringnum[counter].ring[1],
1478 p->drings.ringnum[counter].ring[2]);
1479 for (counter1 = 0; counter1 < 3; counter1++) {
1480 ast_verb(3, "Ring pattern check range: %d\n", p->drings.ringnum[counter].range);
1481 if (p->drings.ringnum[counter].ring[counter1] == -1) {
1482 ast_verb(3, "Pattern ignore (-1) detected, so matching pattern %d regardless.\n",
1483 ringdata[counter1]);
1485 } else if (ringdata[counter1] <= (p->drings.ringnum[counter].ring[counter1] + p->drings.ringnum[counter].range) &&
1486 ringdata[counter1] >= (p->drings.ringnum[counter].ring[counter1] - p->drings.ringnum[counter].range)) {
1487 ast_verb(3, "Ring pattern matched in range: %d to %d\n",
1488 (p->drings.ringnum[counter].ring[counter1] - p->drings.ringnum[counter].range),
1489 (p->drings.ringnum[counter].ring[counter1] + p->drings.ringnum[counter].range));
1494 if (distMatches == 3) {
1495 /* The ring matches, set the context to whatever is for distinctive ring.. */
1496 ast_copy_string(p->context, S_OR(p->drings.ringContext[counter].contextData, p->defcontext), sizeof(p->context));
1497 ast_channel_context_set(chan, S_OR(p->drings.ringContext[counter].contextData, p->defcontext));
1498 ast_verb(3, "Distinctive Ring matched context %s\n",p->context);
1503 /* Restore linear mode (if appropriate) for Caller*ID processing */
1504 dahdi_setlinear(p->subs[idx].dfd, p->subs[idx].linear);
1510 static int my_stop_callwait(void *pvt)
1512 struct dahdi_pvt *p = pvt;
1513 p->callwaitingrepeat = 0;
1515 p->cid_suppress_expire = 0;
1520 static int send_callerid(struct dahdi_pvt *p);
1521 static int save_conference(struct dahdi_pvt *p);
1522 static int restore_conference(struct dahdi_pvt *p);
1524 static int my_callwait(void *pvt)
1526 struct dahdi_pvt *p = pvt;
1528 p->callwaitingrepeat = CALLWAITING_REPEAT_SAMPLES;
1530 ast_log(LOG_WARNING, "Spill already exists?!?\n");
1531 ast_free(p->cidspill);
1535 * SAS: Subscriber Alert Signal, 440Hz for 300ms
1536 * CAS: CPE Alert Signal, 2130Hz * 2750Hz sine waves
1538 if (!(p->cidspill = ast_malloc(2400 /* SAS */ + 680 /* CAS */ + READ_SIZE * 4)))
1542 memset(p->cidspill, 0x7f, 2400 + 600 + READ_SIZE * 4);
1543 if (!p->callwaitrings && p->callwaitingcallerid) {
1544 ast_gen_cas(p->cidspill, 1, 2400 + 680, AST_LAW(p));
1546 p->cidlen = 2400 + 680 + READ_SIZE * 4;
1548 ast_gen_cas(p->cidspill, 1, 2400, AST_LAW(p));
1550 p->cidlen = 2400 + READ_SIZE * 4;
1558 static int my_send_callerid(void *pvt, int cwcid, struct ast_party_caller *caller)
1560 struct dahdi_pvt *p = pvt;
1562 ast_debug(2, "Starting cid spill\n");
1565 ast_log(LOG_WARNING, "cidspill already exists??\n");
1566 ast_free(p->cidspill);
1569 if ((p->cidspill = ast_malloc(MAX_CALLERID_SIZE))) {
1571 p->cidlen = ast_callerid_generate(p->cidspill,
1572 caller->id.name.str,
1573 caller->id.number.str,
1576 ast_verb(3, "CPE supports Call Waiting Caller*ID. Sending '%s/%s'\n",
1577 caller->id.name.str, caller->id.number.str);
1580 p->cidlen = ast_callerid_callwaiting_generate(p->cidspill,
1581 caller->id.name.str,
1582 caller->id.number.str,
1584 p->cidlen += READ_SIZE * 4;
1587 p->cid_suppress_expire = 0;
1593 static int my_dsp_reset_and_flush_digits(void *pvt)
1595 struct dahdi_pvt *p = pvt;
1597 ast_dsp_digitreset(p->dsp);
1602 static int my_dsp_set_digitmode(void *pvt, enum analog_dsp_digitmode mode)
1604 struct dahdi_pvt *p = pvt;
1606 if (p->channel == CHAN_PSEUDO)
1607 ast_log(LOG_ERROR, "You have assumed incorrectly sir!\n");
1609 if (mode == ANALOG_DIGITMODE_DTMF) {
1610 /* If we do hardware dtmf, no need for a DSP */
1611 if (p->hardwaredtmf) {
1613 ast_dsp_free(p->dsp);
1620 p->dsp = ast_dsp_new();
1622 ast_log(LOG_ERROR, "Unable to allocate DSP\n");
1627 ast_dsp_set_digitmode(p->dsp, DSP_DIGITMODE_DTMF | p->dtmfrelax);
1628 } else if (mode == ANALOG_DIGITMODE_MF) {
1630 p->dsp = ast_dsp_new();
1632 ast_log(LOG_ERROR, "Unable to allocate DSP\n");
1636 ast_dsp_set_digitmode(p->dsp, DSP_DIGITMODE_MF | p->dtmfrelax);
1641 static int dahdi_wink(struct dahdi_pvt *p, int index);
1643 static int my_wink(void *pvt, enum analog_sub sub)
1645 struct dahdi_pvt *p = pvt;
1646 int index = analogsub_to_dahdisub(sub);
1647 if (index != SUB_REAL) {
1648 ast_log(LOG_ERROR, "We used a sub other than SUB_REAL (incorrect assumption sir)\n");
1650 return dahdi_wink(p, index);
1653 static void wakeup_sub(struct dahdi_pvt *p, int a);
1655 static int reset_conf(struct dahdi_pvt *p);
1657 static inline int dahdi_confmute(struct dahdi_pvt *p, int muted);
1659 static void my_handle_dtmf(void *pvt, struct ast_channel *ast, enum analog_sub analog_index, struct ast_frame **dest)
1661 struct ast_frame *f = *dest;
1662 struct dahdi_pvt *p = pvt;
1663 int idx = analogsub_to_dahdisub(analog_index);
1665 ast_debug(1, "%s DTMF digit: 0x%02X '%c' on %s\n",
1666 f->frametype == AST_FRAME_DTMF_BEGIN ? "Begin" : "End",
1667 (unsigned)f->subclass.integer, f->subclass.integer, ast_channel_name(ast));
1669 if (f->subclass.integer == 'f') {
1670 if (f->frametype == AST_FRAME_DTMF_END) {
1671 /* Fax tone -- Handle and return NULL */
1672 if ((p->callprogress & CALLPROGRESS_FAX) && !p->faxhandled) {
1673 /* If faxbuffers are configured, use them for the fax transmission */
1674 if (p->usefaxbuffers && !p->bufferoverrideinuse) {
1675 struct dahdi_bufferinfo bi = {
1676 .txbufpolicy = p->faxbuf_policy,
1677 .bufsize = p->bufsize,
1678 .numbufs = p->faxbuf_no
1682 if ((res = ioctl(p->subs[idx].dfd, DAHDI_SET_BUFINFO, &bi)) < 0) {
1683 ast_log(LOG_WARNING, "Channel '%s' unable to set buffer policy, reason: %s\n", ast_channel_name(ast), strerror(errno));
1685 p->bufferoverrideinuse = 1;
1690 p->dsp_features &= ~DSP_FEATURE_FAX_DETECT;
1691 ast_dsp_set_features(p->dsp, p->dsp_features);
1692 ast_debug(1, "Disabling FAX tone detection on %s after tone received\n", ast_channel_name(ast));
1694 if (strcmp(ast_channel_exten(ast), "fax")) {
1695 const char *target_context = S_OR(ast_channel_macrocontext(ast), ast_channel_context(ast));
1697 /* We need to unlock 'ast' here because ast_exists_extension has the
1698 * potential to start autoservice on the channel. Such action is prone
1701 ast_mutex_unlock(&p->lock);
1702 ast_channel_unlock(ast);
1703 if (ast_exists_extension(ast, target_context, "fax", 1,
1704 S_COR(ast_channel_caller(ast)->id.number.valid, ast_channel_caller(ast)->id.number.str, NULL))) {
1705 ast_channel_lock(ast);
1706 ast_mutex_lock(&p->lock);
1707 ast_verb(3, "Redirecting %s to fax extension\n", ast_channel_name(ast));
1708 /* Save the DID/DNIS when we transfer the fax call to a "fax" extension */
1709 pbx_builtin_setvar_helper(ast, "FAXEXTEN", ast_channel_exten(ast));
1710 if (ast_async_goto(ast, target_context, "fax", 1))
1711 ast_log(LOG_WARNING, "Failed to async goto '%s' into fax of '%s'\n", ast_channel_name(ast), target_context);
1713 ast_channel_lock(ast);
1714 ast_mutex_lock(&p->lock);
1715 ast_log(LOG_NOTICE, "Fax detected, but no fax extension\n");
1718 ast_debug(1, "Already in a fax extension, not redirecting\n");
1721 ast_debug(1, "Fax already handled\n");
1723 dahdi_confmute(p, 0);
1725 p->subs[idx].f.frametype = AST_FRAME_NULL;
1726 p->subs[idx].f.subclass.integer = 0;
1727 *dest = &p->subs[idx].f;
1731 static void my_lock_private(void *pvt)
1733 struct dahdi_pvt *p = pvt;
1734 ast_mutex_lock(&p->lock);
1737 static void my_unlock_private(void *pvt)
1739 struct dahdi_pvt *p = pvt;
1740 ast_mutex_unlock(&p->lock);
1743 static void my_deadlock_avoidance_private(void *pvt)
1745 struct dahdi_pvt *p = pvt;
1747 DEADLOCK_AVOIDANCE(&p->lock);
1750 static struct ast_manager_event_blob *dahdichannel_to_ami(struct stasis_message *msg)
1752 RAII_VAR(struct ast_str *, channel_string, NULL, ast_free);
1753 struct ast_channel_blob *obj = stasis_message_data(msg);
1754 struct ast_json *span, *channel;
1756 channel_string = ast_manager_build_channel_state_string(obj->snapshot);
1757 if (!channel_string) {
1761 span = ast_json_object_get(obj->blob, "span");
1762 channel = ast_json_object_get(obj->blob, "channel");
1764 return ast_manager_event_blob_create(EVENT_FLAG_CALL, "DAHDIChannel",
1767 "DAHDIChannel: %s\r\n",
1768 ast_str_buffer(channel_string),
1769 (unsigned int)ast_json_integer_get(span),
1770 ast_json_string_get(channel));
1773 STASIS_MESSAGE_TYPE_DEFN_LOCAL(dahdichannel_type,
1774 .to_ami = dahdichannel_to_ami,
1777 /*! \brief Sends a DAHDIChannel channel blob used to produce DAHDIChannel AMI messages */
1778 static void publish_dahdichannel(struct ast_channel *chan, int span, const char *dahdi_channel)
1780 RAII_VAR(struct ast_json *, blob, NULL, ast_json_unref);
1782 ast_assert(dahdi_channel != NULL);
1784 blob = ast_json_pack("{s: i, s: s}",
1786 "channel", dahdi_channel);
1791 ast_channel_lock(chan);
1792 ast_channel_publish_blob(chan, dahdichannel_type(), blob);
1793 ast_channel_unlock(chan);
1798 * \brief Post an AMI DAHDI channel association event.
1801 * \param p DAHDI private pointer
1802 * \param chan Channel associated with the private pointer
1806 static void dahdi_ami_channel_event(struct dahdi_pvt *p, struct ast_channel *chan)
1810 if (p->channel < CHAN_PSEUDO) {
1812 snprintf(ch_name, sizeof(ch_name), "no-media (%d)", p->channel);
1813 } else if (p->channel == CHAN_PSEUDO) {
1814 /* Pseudo channel */
1815 strcpy(ch_name, "pseudo");
1818 snprintf(ch_name, sizeof(ch_name), "%d", p->channel);
1820 publish_dahdichannel(chan, p->span, ch_name);
1826 * \brief Post an AMI DAHDI channel association event.
1829 * \param pvt DAHDI private pointer
1830 * \param chan Channel associated with the private pointer
1834 static void my_ami_channel_event(void *pvt, struct ast_channel *chan)
1836 struct dahdi_pvt *p = pvt;
1838 dahdi_ami_channel_event(p, chan);
1842 /* linear_mode = 0 - turn linear mode off, >0 - turn linear mode on
1843 * returns the last value of the linear setting
1845 static int my_set_linear_mode(void *pvt, enum analog_sub sub, int linear_mode)
1847 struct dahdi_pvt *p = pvt;
1849 int idx = analogsub_to_dahdisub(sub);
1851 dahdi_setlinear(p->subs[idx].dfd, linear_mode);
1852 oldval = p->subs[idx].linear;
1853 p->subs[idx].linear = linear_mode ? 1 : 0;
1857 static void my_set_inthreeway(void *pvt, enum analog_sub sub, int inthreeway)
1859 struct dahdi_pvt *p = pvt;
1860 int idx = analogsub_to_dahdisub(sub);
1862 p->subs[idx].inthreeway = inthreeway;
1865 static int get_alarms(struct dahdi_pvt *p);
1866 static void handle_alarms(struct dahdi_pvt *p, int alms);
1867 static void my_get_and_handle_alarms(void *pvt)
1870 struct dahdi_pvt *p = pvt;
1872 res = get_alarms(p);
1873 handle_alarms(p, res);
1876 static void *my_get_sigpvt_bridged_channel(struct ast_channel *chan)
1878 RAII_VAR(struct ast_channel *, bridged, ast_channel_bridge_peer(chan), ast_channel_cleanup);
1880 if (bridged && ast_channel_tech(bridged) == &dahdi_tech) {
1881 struct dahdi_pvt *p = ast_channel_tech_pvt(bridged);
1883 if (dahdi_analog_lib_handles(p->sig, p->radio, p->oprmode)) {
1890 static int my_get_sub_fd(void *pvt, enum analog_sub sub)
1892 struct dahdi_pvt *p = pvt;
1893 int dahdi_sub = analogsub_to_dahdisub(sub);
1894 return p->subs[dahdi_sub].dfd;
1897 static void my_set_cadence(void *pvt, int *cid_rings, struct ast_channel *ast)
1899 struct dahdi_pvt *p = pvt;
1901 /* Choose proper cadence */
1902 if ((p->distinctivering > 0) && (p->distinctivering <= num_cadence)) {
1903 if (ioctl(p->subs[SUB_REAL].dfd, DAHDI_SETCADENCE, &cadences[p->distinctivering - 1]))
1904 ast_log(LOG_WARNING, "Unable to set distinctive ring cadence %d on '%s': %s\n", p->distinctivering, ast_channel_name(ast), strerror(errno));
1905 *cid_rings = cidrings[p->distinctivering - 1];
1907 if (ioctl(p->subs[SUB_REAL].dfd, DAHDI_SETCADENCE, NULL))
1908 ast_log(LOG_WARNING, "Unable to reset default ring on '%s': %s\n", ast_channel_name(ast), strerror(errno));
1909 *cid_rings = p->sendcalleridafter;
1913 static void my_set_alarm(void *pvt, int in_alarm)
1915 struct dahdi_pvt *p = pvt;
1917 p->inalarm = in_alarm;
1920 static void my_set_dialing(void *pvt, int is_dialing)
1922 struct dahdi_pvt *p = pvt;
1924 p->dialing = is_dialing;
1927 static void my_set_outgoing(void *pvt, int is_outgoing)
1929 struct dahdi_pvt *p = pvt;
1931 p->outgoing = is_outgoing;
1934 #if defined(HAVE_PRI) || defined(HAVE_SS7)
1935 static void my_set_digital(void *pvt, int is_digital)
1937 struct dahdi_pvt *p = pvt;
1939 p->digital = is_digital;
1941 #endif /* defined(HAVE_PRI) || defined(HAVE_SS7) */
1943 #if defined(HAVE_SS7)
1944 static void my_set_inservice(void *pvt, int is_inservice)
1946 struct dahdi_pvt *p = pvt;
1948 p->inservice = is_inservice;
1950 #endif /* defined(HAVE_SS7) */
1952 #if defined(HAVE_SS7)
1953 static void my_set_locallyblocked(void *pvt, int is_blocked)
1955 struct dahdi_pvt *p = pvt;
1957 p->locallyblocked = is_blocked;
1959 #endif /* defined(HAVE_SS7) */
1961 #if defined(HAVE_SS7)
1962 static void my_set_remotelyblocked(void *pvt, int is_blocked)
1964 struct dahdi_pvt *p = pvt;
1966 p->remotelyblocked = is_blocked;
1968 #endif /* defined(HAVE_SS7) */
1970 static void my_set_ringtimeout(void *pvt, int ringt)
1972 struct dahdi_pvt *p = pvt;
1976 static void my_set_waitingfordt(void *pvt, struct ast_channel *ast)
1978 struct dahdi_pvt *p = pvt;
1980 if (p->waitfordialtone && CANPROGRESSDETECT(p) && p->dsp) {
1981 ast_debug(1, "Defer dialing for %dms or dialtone\n", p->waitfordialtone);
1982 gettimeofday(&p->waitingfordt, NULL);
1983 ast_setstate(ast, AST_STATE_OFFHOOK);
1987 static int my_check_waitingfordt(void *pvt)
1989 struct dahdi_pvt *p = pvt;
1991 if (p->waitingfordt.tv_sec) {
1998 static void my_set_confirmanswer(void *pvt, int flag)
2000 struct dahdi_pvt *p = pvt;
2001 p->confirmanswer = flag;
2004 static int my_check_confirmanswer(void *pvt)
2006 struct dahdi_pvt *p = pvt;
2007 if (p->confirmanswer) {
2014 static void my_set_callwaiting(void *pvt, int callwaiting_enable)
2016 struct dahdi_pvt *p = pvt;
2018 p->callwaiting = callwaiting_enable;
2021 static void my_cancel_cidspill(void *pvt)
2023 struct dahdi_pvt *p = pvt;
2025 ast_free(p->cidspill);
2027 restore_conference(p);
2030 static int my_confmute(void *pvt, int mute)
2032 struct dahdi_pvt *p = pvt;
2033 return dahdi_confmute(p, mute);
2036 static void my_set_pulsedial(void *pvt, int flag)
2038 struct dahdi_pvt *p = pvt;
2039 p->pulsedial = flag;
2042 static void my_set_new_owner(void *pvt, struct ast_channel *new_owner)
2044 struct dahdi_pvt *p = pvt;
2046 p->owner = new_owner;
2049 static const char *my_get_orig_dialstring(void *pvt)
2051 struct dahdi_pvt *p = pvt;
2053 return p->dialstring;
2056 static void my_increase_ss_count(void)
2058 ast_mutex_lock(&ss_thread_lock);
2060 ast_mutex_unlock(&ss_thread_lock);
2063 static void my_decrease_ss_count(void)
2065 ast_mutex_lock(&ss_thread_lock);
2067 ast_cond_signal(&ss_thread_complete);
2068 ast_mutex_unlock(&ss_thread_lock);
2071 static void my_all_subchannels_hungup(void *pvt)
2073 struct dahdi_pvt *p = pvt;
2080 ast_dsp_free(p->dsp);
2084 p->law = p->law_default;
2085 law = p->law_default;
2086 res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_SETLAW, &law);
2088 ast_log(LOG_WARNING, "Unable to set law on channel %d to default: %s\n", p->channel, strerror(errno));
2090 dahdi_setlinear(p->subs[SUB_REAL].dfd, 0);
2096 /* Cleanup owners here */
2097 for (i = 0; i < 3; i++) {
2098 p->subs[i].owner = NULL;
2104 if (num_restart_pending == 0) {
2109 static int conf_del(struct dahdi_pvt *p, struct dahdi_subchannel *c, int index);
2111 static int my_conf_del(void *pvt, enum analog_sub sub)
2113 struct dahdi_pvt *p = pvt;
2114 int x = analogsub_to_dahdisub(sub);
2116 return conf_del(p, &p->subs[x], x);
2119 static int conf_add(struct dahdi_pvt *p, struct dahdi_subchannel *c, int index, int slavechannel);
2121 static int my_conf_add(void *pvt, enum analog_sub sub)
2123 struct dahdi_pvt *p = pvt;
2124 int x = analogsub_to_dahdisub(sub);
2126 return conf_add(p, &p->subs[x], x, 0);
2129 static int isslavenative(struct dahdi_pvt *p, struct dahdi_pvt **out);
2131 static int my_complete_conference_update(void *pvt, int needconference)
2133 struct dahdi_pvt *p = pvt;
2134 int needconf = needconference;
2137 struct dahdi_pvt *slave = NULL;
2139 useslavenative = isslavenative(p, &slave);
2141 /* If we have a slave, add him to our conference now. or DAX
2142 if this is slave native */
2143 for (x = 0; x < MAX_SLAVES; x++) {
2146 conf_add(p, &p->slaves[x]->subs[SUB_REAL], SUB_REAL, GET_CHANNEL(p));
2148 conf_add(p, &p->slaves[x]->subs[SUB_REAL], SUB_REAL, 0);
2153 /* If we're supposed to be in there, do so now */
2154 if (p->inconference && !p->subs[SUB_REAL].inthreeway) {
2156 conf_add(p, &p->subs[SUB_REAL], SUB_REAL, GET_CHANNEL(slave));
2158 conf_add(p, &p->subs[SUB_REAL], SUB_REAL, 0);
2162 /* If we have a master, add ourselves to his conference */
2164 if (isslavenative(p->master, NULL)) {
2165 conf_add(p->master, &p->subs[SUB_REAL], SUB_REAL, GET_CHANNEL(p->master));
2167 conf_add(p->master, &p->subs[SUB_REAL], SUB_REAL, 0);
2171 /* Nobody is left (or should be left) in our conference.
2179 static int check_for_conference(struct dahdi_pvt *p);
2181 static int my_check_for_conference(void *pvt)
2183 struct dahdi_pvt *p = pvt;
2184 return check_for_conference(p);
2187 static void my_swap_subchannels(void *pvt, enum analog_sub a, struct ast_channel *ast_a, enum analog_sub b, struct ast_channel *ast_b)
2189 struct dahdi_pvt *p = pvt;
2194 da = analogsub_to_dahdisub(a);
2195 db = analogsub_to_dahdisub(b);
2197 tchan = p->subs[da].chan;
2198 p->subs[da].chan = p->subs[db].chan;
2199 p->subs[db].chan = tchan;
2201 tinthreeway = p->subs[da].inthreeway;
2202 p->subs[da].inthreeway = p->subs[db].inthreeway;
2203 p->subs[db].inthreeway = tinthreeway;
2205 p->subs[da].owner = ast_a;
2206 p->subs[db].owner = ast_b;
2209 ast_channel_set_fd(ast_a, 0, p->subs[da].dfd);
2211 ast_channel_set_fd(ast_b, 0, p->subs[db].dfd);
2221 * \brief performs duties of dahdi_new, but also removes and possibly unbinds (if callid_created is 1) before returning
2222 * \note this variant of dahdi should only be used in conjunction with ast_callid_threadstorage_auto()
2224 * \param callid_created value returned from ast_callid_threadstorage_auto()
2226 static struct ast_channel *dahdi_new_callid_clean(struct dahdi_pvt *i, int state, int startpbx, int idx, int law, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, struct ast_callid *callid, int callid_created);
2228 static struct ast_channel *dahdi_new(struct dahdi_pvt *i, int state, int startpbx, int idx, int law, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, struct ast_callid *callid);
2230 static struct ast_channel *my_new_analog_ast_channel(void *pvt, int state, int startpbx, enum analog_sub sub, const struct ast_channel *requestor)
2232 struct ast_callid *callid = NULL;
2233 int callid_created = ast_callid_threadstorage_auto(&callid);
2234 struct dahdi_pvt *p = pvt;
2235 int dsub = analogsub_to_dahdisub(sub);
2237 return dahdi_new_callid_clean(p, state, startpbx, dsub, 0, NULL, requestor, callid, callid_created);
2240 #if defined(HAVE_PRI) || defined(HAVE_SS7)
2241 static int dahdi_setlaw(int dfd, int law)
2244 res = ioctl(dfd, DAHDI_SETLAW, &law);
2249 #endif /* defined(HAVE_PRI) || defined(HAVE_SS7) */
2251 #if defined(HAVE_PRI)
2252 static struct ast_channel *my_new_pri_ast_channel(void *pvt, int state,
2253 enum sig_pri_law law, char *exten, const struct ast_assigned_ids *assignedids,
2254 const struct ast_channel *requestor)
2256 struct dahdi_pvt *p = pvt;
2259 struct ast_callid *callid = NULL;
2260 int callid_created = ast_callid_threadstorage_auto(&callid);
2263 case SIG_PRI_LIB_HANDLE_CASES:
2264 if (((struct sig_pri_chan *) p->sig_pvt)->no_b_channel) {
2265 /* PRI nobch pseudo channel. Does not handle ioctl(DAHDI_AUDIOMODE) */
2270 /* Set to audio mode at this point */
2272 if (ioctl(p->subs[SUB_REAL].dfd, DAHDI_AUDIOMODE, &audio) == -1) {
2273 ast_log(LOG_WARNING, "Unable to set audio mode on channel %d to %d: %s\n",
2274 p->channel, audio, strerror(errno));
2279 if (law != SIG_PRI_DEFLAW) {
2280 dahdi_setlaw(p->subs[SUB_REAL].dfd, (law == SIG_PRI_ULAW) ? DAHDI_LAW_MULAW : DAHDI_LAW_ALAW);
2283 ast_copy_string(p->exten, exten, sizeof(p->exten));
2286 case SIG_PRI_DEFLAW:
2290 newlaw = DAHDI_LAW_ALAW;
2293 newlaw = DAHDI_LAW_MULAW;
2297 return dahdi_new_callid_clean(p, state, 0, SUB_REAL, newlaw, assignedids, requestor, callid, callid_created);
2299 #endif /* defined(HAVE_PRI) */
2301 static int set_actual_gain(int fd, float rxgain, float txgain, float rxdrc, float txdrc, int law);
2303 #if defined(HAVE_PRI) || defined(HAVE_SS7)
2306 * \brief Open the PRI/SS7 channel media path.
2309 * \param p Channel private control structure.
2313 static void my_pri_ss7_open_media(void *p)
2315 struct dahdi_pvt *pvt = p;
2320 dfd = pvt->subs[SUB_REAL].dfd;
2322 /* Open the media path. */
2324 res = ioctl(dfd, DAHDI_AUDIOMODE, &set_val);
2326 ast_log(LOG_WARNING, "Unable to enable audio mode on channel %d (%s)\n",
2327 pvt->channel, strerror(errno));
2330 /* Set correct companding law for this call. */
2331 res = dahdi_setlaw(dfd, pvt->law);
2333 ast_log(LOG_WARNING, "Unable to set law on channel %d\n", pvt->channel);
2336 /* Set correct gain for this call. */
2338 res = set_actual_gain(dfd, 0, 0, pvt->rxdrc, pvt->txdrc, pvt->law);
2340 res = set_actual_gain(dfd, pvt->rxgain, pvt->txgain, pvt->rxdrc, pvt->txdrc,
2344 ast_log(LOG_WARNING, "Unable to set gains on channel %d\n", pvt->channel);
2347 if (pvt->dsp_features && pvt->dsp) {
2348 ast_dsp_set_features(pvt->dsp, pvt->dsp_features);
2349 pvt->dsp_features = 0;
2352 #endif /* defined(HAVE_PRI) || defined(HAVE_SS7) */
2354 #if defined(HAVE_PRI)
2357 * \brief Ask DAHDI to dial the given dial string.
2360 * \param p Channel private control structure.
2361 * \param dial_string String to pass to DAHDI to dial.
2363 * \note The channel private lock needs to be held when calling.
2367 static void my_pri_dial_digits(void *p, const char *dial_string)
2369 char dial_str[DAHDI_MAX_DTMF_BUF];
2370 struct dahdi_pvt *pvt = p;
2373 snprintf(dial_str, sizeof(dial_str), "T%s", dial_string);
2374 res = dahdi_dial_str(pvt, DAHDI_DIAL_OP_APPEND, dial_str);
2379 #endif /* defined(HAVE_PRI) */
2381 static int unalloc_sub(struct dahdi_pvt *p, int x);
2383 static int my_unallocate_sub(void *pvt, enum analog_sub analogsub)
2385 struct dahdi_pvt *p = pvt;
2387 return unalloc_sub(p, analogsub_to_dahdisub(analogsub));
2390 static int alloc_sub(struct dahdi_pvt *p, int x);
2392 static int my_allocate_sub(void *pvt, enum analog_sub analogsub)
2394 struct dahdi_pvt *p = pvt;
2396 return alloc_sub(p, analogsub_to_dahdisub(analogsub));
2399 static int has_voicemail(struct dahdi_pvt *p);
2401 static int my_has_voicemail(void *pvt)
2403 struct dahdi_pvt *p = pvt;
2405 return has_voicemail(p);
2408 static int my_play_tone(void *pvt, enum analog_sub sub, enum analog_tone tone)
2410 struct dahdi_pvt *p = pvt;
2413 index = analogsub_to_dahdisub(sub);
2415 return tone_zone_play_tone(p->subs[index].dfd, analog_tone_to_dahditone(tone));
2418 static enum analog_event dahdievent_to_analogevent(int event)
2420 enum analog_event res;
2423 case DAHDI_EVENT_ONHOOK:
2424 res = ANALOG_EVENT_ONHOOK;
2426 case DAHDI_EVENT_RINGOFFHOOK:
2427 res = ANALOG_EVENT_RINGOFFHOOK;
2429 case DAHDI_EVENT_WINKFLASH:
2430 res = ANALOG_EVENT_WINKFLASH;
2432 case DAHDI_EVENT_ALARM:
2433 res = ANALOG_EVENT_ALARM;
2435 case DAHDI_EVENT_NOALARM:
2436 res = ANALOG_EVENT_NOALARM;
2438 case DAHDI_EVENT_DIALCOMPLETE:
2439 res = ANALOG_EVENT_DIALCOMPLETE;
2441 case DAHDI_EVENT_RINGERON:
2442 res = ANALOG_EVENT_RINGERON;
2444 case DAHDI_EVENT_RINGEROFF:
2445 res = ANALOG_EVENT_RINGEROFF;
2447 case DAHDI_EVENT_HOOKCOMPLETE:
2448 res = ANALOG_EVENT_HOOKCOMPLETE;
2450 case DAHDI_EVENT_PULSE_START:
2451 res = ANALOG_EVENT_PULSE_START;
2453 case DAHDI_EVENT_POLARITY:
2454 res = ANALOG_EVENT_POLARITY;
2456 case DAHDI_EVENT_RINGBEGIN:
2457 res = ANALOG_EVENT_RINGBEGIN;
2459 case DAHDI_EVENT_EC_DISABLED:
2460 res = ANALOG_EVENT_EC_DISABLED;
2462 case DAHDI_EVENT_REMOVED:
2463 res = ANALOG_EVENT_REMOVED;
2465 case DAHDI_EVENT_NEONMWI_ACTIVE:
2466 res = ANALOG_EVENT_NEONMWI_ACTIVE;
2468 case DAHDI_EVENT_NEONMWI_INACTIVE:
2469 res = ANALOG_EVENT_NEONMWI_INACTIVE;
2471 #ifdef HAVE_DAHDI_ECHOCANCEL_FAX_MODE
2472 case DAHDI_EVENT_TX_CED_DETECTED:
2473 res = ANALOG_EVENT_TX_CED_DETECTED;
2475 case DAHDI_EVENT_RX_CED_DETECTED:
2476 res = ANALOG_EVENT_RX_CED_DETECTED;
2478 case DAHDI_EVENT_EC_NLP_DISABLED:
2479 res = ANALOG_EVENT_EC_NLP_DISABLED;
2481 case DAHDI_EVENT_EC_NLP_ENABLED:
2482 res = ANALOG_EVENT_EC_NLP_ENABLED;
2485 case DAHDI_EVENT_PULSEDIGIT:
2486 res = ANALOG_EVENT_PULSEDIGIT;
2488 case DAHDI_EVENT_DTMFDOWN:
2489 res = ANALOG_EVENT_DTMFDOWN;
2491 case DAHDI_EVENT_DTMFUP:
2492 res = ANALOG_EVENT_DTMFUP;
2495 switch(event & 0xFFFF0000) {
2496 case DAHDI_EVENT_PULSEDIGIT:
2497 case DAHDI_EVENT_DTMFDOWN:
2498 case DAHDI_EVENT_DTMFUP:
2499 /* The event includes a digit number in the low word.
2500 * Converting it to a 'enum analog_event' would remove
2501 * that information. Thus it is returned as-is.
2506 res = ANALOG_EVENT_ERROR;
2513 static inline int dahdi_wait_event(int fd);
2515 static int my_wait_event(void *pvt)
2517 struct dahdi_pvt *p = pvt;
2519 return dahdi_wait_event(p->subs[SUB_REAL].dfd);
2522 static int my_get_event(void *pvt)
2524 struct dahdi_pvt *p = pvt;
2527 if (p->fake_event) {
2528 res = p->fake_event;
2531 res = dahdi_get_event(p->subs[SUB_REAL].dfd);
2533 return dahdievent_to_analogevent(res);
2536 static int my_is_off_hook(void *pvt)
2538 struct dahdi_pvt *p = pvt;
2540 struct dahdi_params par;
2542 memset(&par, 0, sizeof(par));
2544 if (p->subs[SUB_REAL].dfd > -1)
2545 res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_GET_PARAMS, &par);
2547 /* Assume not off hook on CVRS */
2549 par.rxisoffhook = 0;
2552 ast_log(LOG_WARNING, "Unable to check hook state on channel %d: %s\n", p->channel, strerror(errno));
2555 if ((p->sig == SIG_FXSKS) || (p->sig == SIG_FXSGS)) {
2556 /* When "onhook" that means no battery on the line, and thus
2557 it is out of service..., if it's on a TDM card... If it's a channel
2558 bank, there is no telling... */
2559 return (par.rxbits > -1) || par.rxisoffhook;
2562 return par.rxisoffhook;
2565 static int my_set_echocanceller(void *pvt, int enable)
2567 struct dahdi_pvt *p = pvt;
2572 dahdi_ec_disable(p);
2577 static int dahdi_ring_phone(struct dahdi_pvt *p);
2579 static int my_ring(void *pvt)
2581 struct dahdi_pvt *p = pvt;
2583 return dahdi_ring_phone(p);
2586 static int my_flash(void *pvt)
2588 struct dahdi_pvt *p = pvt;
2589 int func = DAHDI_FLASH;
2590 return ioctl(p->subs[SUB_REAL].dfd, DAHDI_HOOK, &func);
2593 static inline int dahdi_set_hook(int fd, int hs);
2595 static int my_off_hook(void *pvt)
2597 struct dahdi_pvt *p = pvt;
2598 return dahdi_set_hook(p->subs[SUB_REAL].dfd, DAHDI_OFFHOOK);
2601 static void my_set_needringing(void *pvt, int value)
2603 struct dahdi_pvt *p = pvt;
2604 p->subs[SUB_REAL].needringing = value;
2607 static void my_set_polarity(void *pvt, int value)
2609 struct dahdi_pvt *p = pvt;
2611 if (p->channel == CHAN_PSEUDO) {
2614 p->polarity = value;
2615 ioctl(p->subs[SUB_REAL].dfd, DAHDI_SETPOLARITY, &value);
2618 static void my_start_polarityswitch(void *pvt)
2620 struct dahdi_pvt *p = pvt;
2622 if (p->answeronpolarityswitch || p->hanguponpolarityswitch) {
2623 my_set_polarity(pvt, 0);
2627 static void my_answer_polarityswitch(void *pvt)
2629 struct dahdi_pvt *p = pvt;
2631 if (!p->answeronpolarityswitch) {
2635 my_set_polarity(pvt, 1);
2638 static void my_hangup_polarityswitch(void *pvt)
2640 struct dahdi_pvt *p = pvt;
2642 if (!p->hanguponpolarityswitch) {
2646 if (p->answeronpolarityswitch) {
2647 my_set_polarity(pvt, 0);
2649 my_set_polarity(pvt, 1);
2653 static int my_start(void *pvt)
2655 struct dahdi_pvt *p = pvt;
2656 int x = DAHDI_START;
2658 return ioctl(p->subs[SUB_REAL].dfd, DAHDI_HOOK, &x);
2661 static int my_dial_digits(void *pvt, enum analog_sub sub, struct analog_dialoperation *dop)
2663 struct dahdi_pvt *p = pvt;
2665 if (dop->op != ANALOG_DIAL_OP_REPLACE) {
2666 ast_log(LOG_ERROR, "Fix the dial_digits callback!\n");
2670 if (sub != ANALOG_SUB_REAL) {
2671 ast_log(LOG_ERROR, "Trying to dial_digits '%s' on channel %d subchannel %u\n",
2672 dop->dialstr, p->channel, sub);
2676 return dahdi_dial_str(p, DAHDI_DIAL_OP_REPLACE, dop->dialstr);
2679 static void dahdi_train_ec(struct dahdi_pvt *p);
2681 static int my_train_echocanceller(void *pvt)
2683 struct dahdi_pvt *p = pvt;
2690 static int my_is_dialing(void *pvt, enum analog_sub sub)
2692 struct dahdi_pvt *p = pvt;
2696 index = analogsub_to_dahdisub(sub);
2698 if (ioctl(p->subs[index].dfd, DAHDI_DIALING, &x)) {
2699 ast_debug(1, "DAHDI_DIALING ioctl failed!\n");
2706 static int my_on_hook(void *pvt)
2708 struct dahdi_pvt *p = pvt;
2709 return dahdi_set_hook(p->subs[ANALOG_SUB_REAL].dfd, DAHDI_ONHOOK);
2712 #if defined(HAVE_PRI)
2713 static void my_pri_fixup_chans(void *chan_old, void *chan_new)
2715 struct dahdi_pvt *old_chan = chan_old;
2716 struct dahdi_pvt *new_chan = chan_new;
2718 new_chan->owner = old_chan->owner;
2719 old_chan->owner = NULL;
2720 if (new_chan->owner) {
2721 ast_channel_tech_pvt_set(new_chan->owner, new_chan);
2722 ast_channel_internal_fd_set(new_chan->owner, 0, new_chan->subs[SUB_REAL].dfd);
2723 new_chan->subs[SUB_REAL].owner = old_chan->subs[SUB_REAL].owner;
2724 old_chan->subs[SUB_REAL].owner = NULL;
2726 /* Copy any DSP that may be present */
2727 new_chan->dsp = old_chan->dsp;
2728 new_chan->dsp_features = old_chan->dsp_features;
2729 old_chan->dsp = NULL;
2730 old_chan->dsp_features = 0;
2732 /* Transfer flags from the old channel. */
2733 new_chan->dialing = old_chan->dialing;
2734 new_chan->digital = old_chan->digital;
2735 new_chan->outgoing = old_chan->outgoing;
2736 old_chan->dialing = 0;
2737 old_chan->digital = 0;
2738 old_chan->outgoing = 0;
2740 /* More stuff to transfer to the new channel. */
2741 new_chan->law = old_chan->law;
2742 strcpy(new_chan->dialstring, old_chan->dialstring);
2744 #endif /* defined(HAVE_PRI) */
2746 #if defined(HAVE_PRI)
2747 static int sig_pri_tone_to_dahditone(enum sig_pri_tone tone)
2750 case SIG_PRI_TONE_RINGTONE:
2751 return DAHDI_TONE_RINGTONE;
2752 case SIG_PRI_TONE_STUTTER:
2753 return DAHDI_TONE_STUTTER;
2754 case SIG_PRI_TONE_CONGESTION:
2755 return DAHDI_TONE_CONGESTION;
2756 case SIG_PRI_TONE_DIALTONE:
2757 return DAHDI_TONE_DIALTONE;
2758 case SIG_PRI_TONE_DIALRECALL:
2759 return DAHDI_TONE_DIALRECALL;
2760 case SIG_PRI_TONE_INFO:
2761 return DAHDI_TONE_INFO;
2762 case SIG_PRI_TONE_BUSY:
2763 return DAHDI_TONE_BUSY;
2768 #endif /* defined(HAVE_PRI) */
2770 #if defined(HAVE_PRI)
2771 static void my_handle_dchan_exception(struct sig_pri_span *pri, int index)
2775 ioctl(pri->fds[index], DAHDI_GETEVENT, &x);
2777 case DAHDI_EVENT_NONE:
2779 case DAHDI_EVENT_ALARM:
2780 case DAHDI_EVENT_NOALARM:
2781 if (sig_pri_is_alarm_ignored(pri)) {
2786 ast_log(LOG_NOTICE, "Got DAHDI event: %s (%d) on D-channel of span %d\n",
2787 event2str(x), x, pri->span);
2790 /* Keep track of alarm state */
2792 case DAHDI_EVENT_ALARM:
2793 pri_event_alarm(pri, index, 0);
2795 case DAHDI_EVENT_NOALARM:
2796 pri_event_noalarm(pri, index, 0);
2798 case DAHDI_EVENT_REMOVED:
2799 pri_queue_for_destruction(pri);
2805 #endif /* defined(HAVE_PRI) */
2807 #if defined(HAVE_PRI)
2808 static int my_pri_play_tone(void *pvt, enum sig_pri_tone tone)
2810 struct dahdi_pvt *p = pvt;
2812 return tone_zone_play_tone(p->subs[SUB_REAL].dfd, sig_pri_tone_to_dahditone(tone));
2814 #endif /* defined(HAVE_PRI) */
2816 #if defined(HAVE_PRI) || defined(HAVE_SS7)
2819 * \brief Set the caller id information.
2822 * \param pvt DAHDI private structure
2823 * \param caller Caller-id information to set.
2827 static void my_set_callerid(void *pvt, const struct ast_party_caller *caller)
2829 struct dahdi_pvt *p = pvt;
2831 ast_copy_string(p->cid_num,
2832 S_COR(caller->id.number.valid, caller->id.number.str, ""),
2833 sizeof(p->cid_num));
2834 ast_copy_string(p->cid_name,
2835 S_COR(caller->id.name.valid, caller->id.name.str, ""),
2836 sizeof(p->cid_name));
2837 ast_copy_string(p->cid_subaddr,
2838 S_COR(caller->id.subaddress.valid, caller->id.subaddress.str, ""),
2839 sizeof(p->cid_subaddr));
2840 p->cid_ton = caller->id.number.plan;
2841 p->callingpres = ast_party_id_presentation(&caller->id);
2842 if (caller->id.tag) {
2843 ast_copy_string(p->cid_tag, caller->id.tag, sizeof(p->cid_tag));
2845 ast_copy_string(p->cid_ani,
2846 S_COR(caller->ani.number.valid, caller->ani.number.str, ""),
2847 sizeof(p->cid_ani));
2848 p->cid_ani2 = caller->ani2;
2850 #endif /* defined(HAVE_PRI) || defined(HAVE_SS7) */
2852 #if defined(HAVE_PRI) || defined(HAVE_SS7)
2855 * \brief Set the Dialed Number Identifier.
2858 * \param pvt DAHDI private structure
2859 * \param dnid Dialed Number Identifier string.
2863 static void my_set_dnid(void *pvt, const char *dnid)
2865 struct dahdi_pvt *p = pvt;
2867 ast_copy_string(p->dnid, dnid, sizeof(p->dnid));
2869 #endif /* defined(HAVE_PRI) || defined(HAVE_SS7) */
2871 #if defined(HAVE_PRI)
2874 * \brief Set the Redirecting Directory Number Information Service (RDNIS).
2877 * \param pvt DAHDI private structure
2878 * \param rdnis Redirecting Directory Number Information Service (RDNIS) string.
2882 static void my_set_rdnis(void *pvt, const char *rdnis)
2884 struct dahdi_pvt *p = pvt;
2886 ast_copy_string(p->rdnis, rdnis, sizeof(p->rdnis));
2888 #endif /* defined(HAVE_PRI) */
2890 #if defined(HAVE_PRI)
2893 * \brief Make a dialstring for native ISDN CC to recall properly.
2896 * \param priv Channel private control structure.
2897 * \param buf Where to put the modified dialstring.
2898 * \param buf_size Size of modified dialstring buffer.
2901 * original dialstring:
2902 * DAHDI/[i<span>-](g|G|r|R)<group#(0-63)>[c|r<cadance#>|d][/extension[/options]]
2904 * The modified dialstring will have prefixed the channel-group section
2905 * with the ISDN channel restriction.
2908 * DAHDI/i<span>-(g|G|r|R)<group#(0-63)>[c|r<cadance#>|d][/extension[/options]]
2910 * The routine will check to see if the ISDN channel restriction is already
2911 * in the original dialstring.
2915 static void my_pri_make_cc_dialstring(void *priv, char *buf, size_t buf_size)
2918 struct dahdi_pvt *pvt;
2919 AST_DECLARE_APP_ARGS(args,
2920 AST_APP_ARG(tech); /* channel technology token */
2921 AST_APP_ARG(group); /* channel/group token */
2922 //AST_APP_ARG(ext); /* extension token */
2923 //AST_APP_ARG(opts); /* options token */
2924 //AST_APP_ARG(other); /* Any remining unused arguments */
2928 dial = ast_strdupa(pvt->dialstring);
2929 AST_NONSTANDARD_APP_ARGS(args, dial, '/');
2931 ast_copy_string(buf, pvt->dialstring, buf_size);
2935 /* Append the ISDN span channel restriction to the dialstring. */
2936 snprintf(buf, buf_size, "%s/i%d-", args.tech, pvt->pri->span);
2939 if (isdigit(args.group[0]) || args.group[0] == 'i' || strchr(args.group, '!')) {
2940 /* The ISDN span channel restriction is not needed or already
2941 * in the dialstring. */
2942 ast_copy_string(buf, pvt->dialstring, buf_size);
2945 /* Insert the ISDN span channel restriction into the dialstring. */
2946 snprintf(buf, buf_size, "%s/i%d-%s", args.tech, pvt->pri->span, args.group);
2948 #endif /* defined(HAVE_PRI) */
2950 #if defined(HAVE_PRI)
2953 * \brief Reevaluate the PRI span device state.
2956 * \param pri Asterisk D channel control structure.
2960 * \note Assumes the pri->lock is already obtained.
2962 static void dahdi_pri_update_span_devstate(struct sig_pri_span *pri)
2965 unsigned num_b_chans; /* Number of B channels provisioned on the span. */
2966 unsigned in_use; /* Number of B channels in use on the span. */
2967 unsigned in_alarm; /* TRUE if the span is in alarm condition. */
2968 enum ast_device_state new_state;
2970 /* Count the number of B channels and the number of B channels in use. */
2974 for (idx = pri->numchans; idx--;) {
2975 if (pri->pvts[idx] && !pri->pvts[idx]->no_b_channel) {
2976 /* This is a B channel interface. */
2978 if (!sig_pri_is_chan_available(pri->pvts[idx])) {
2981 if (!pri->pvts[idx]->inalarm) {
2982 /* There is a channel that is not in alarm. */
2988 /* Update the span congestion device state and report any change. */
2990 new_state = AST_DEVICE_UNAVAILABLE;
2992 new_state = num_b_chans == in_use ? AST_DEVICE_BUSY : AST_DEVICE_NOT_INUSE;
2994 if (pri->congestion_devstate != new_state) {
2995 pri->congestion_devstate = new_state;
2996 ast_devstate_changed(AST_DEVICE_UNKNOWN, AST_DEVSTATE_NOT_CACHABLE, "DAHDI/I%d/congestion", pri->span);
2998 #if defined(THRESHOLD_DEVSTATE_PLACEHOLDER)
2999 /* Update the span threshold device state and report any change. */
3001 new_state = AST_DEVICE_UNAVAILABLE;
3002 } else if (!in_use) {
3003 new_state = AST_DEVICE_NOT_INUSE;
3004 } else if (!pri->user_busy_threshold) {
3005 new_state = in_use < num_b_chans ? AST_DEVICE_INUSE : AST_DEVICE_BUSY;
3007 new_state = in_use < pri->user_busy_threshold ? AST_DEVICE_INUSE
3010 if (pri->threshold_devstate != new_state) {
3011 pri->threshold_devstate = new_state;
3012 ast_devstate_changed(AST_DEVICE_UNKNOWN, AST_DEVSTATE_NOT_CACHABLE, "DAHDI/I%d/threshold", pri->span);
3014 #endif /* defined(THRESHOLD_DEVSTATE_PLACEHOLDER) */
3016 #endif /* defined(HAVE_PRI) */
3018 #if defined(HAVE_PRI)
3021 * \brief Reference this module.
3026 static void my_module_ref(void)
3028 ast_module_ref(ast_module_info->self);
3030 #endif /* defined(HAVE_PRI) */
3032 #if defined(HAVE_PRI)
3035 * \brief Unreference this module.
3040 static void my_module_unref(void)
3042 ast_module_unref(ast_module_info->self);
3044 #endif /* defined(HAVE_PRI) */
3046 #if defined(HAVE_PRI)
3047 #if defined(HAVE_PRI_CALL_WAITING)
3048 static void my_pri_init_config(void *priv, struct sig_pri_span *pri);
3049 #endif /* defined(HAVE_PRI_CALL_WAITING) */
3050 static int dahdi_new_pri_nobch_channel(struct sig_pri_span *pri);
3052 struct sig_pri_callback sig_pri_callbacks =
3054 .handle_dchan_exception = my_handle_dchan_exception,
3055 .play_tone = my_pri_play_tone,
3056 .set_echocanceller = my_set_echocanceller,
3057 .dsp_reset_and_flush_digits = my_dsp_reset_and_flush_digits,
3058 .lock_private = my_lock_private,
3059 .unlock_private = my_unlock_private,
3060 .deadlock_avoidance_private = my_deadlock_avoidance_private,
3061 .new_ast_channel = my_new_pri_ast_channel,
3062 .fixup_chans = my_pri_fixup_chans,
3063 .set_alarm = my_set_alarm,
3064 .set_dialing = my_set_dialing,
3065 .set_outgoing = my_set_outgoing,
3066 .set_digital = my_set_digital,
3067 .set_callerid = my_set_callerid,
3068 .set_dnid = my_set_dnid,
3069 .set_rdnis = my_set_rdnis,
3070 .new_nobch_intf = dahdi_new_pri_nobch_channel,
3071 #if defined(HAVE_PRI_CALL_WAITING)
3072 .init_config = my_pri_init_config,
3073 #endif /* defined(HAVE_PRI_CALL_WAITING) */
3074 .get_orig_dialstring = my_get_orig_dialstring,
3075 .make_cc_dialstring = my_pri_make_cc_dialstring,
3076 .update_span_devstate = dahdi_pri_update_span_devstate,
3077 .module_ref = my_module_ref,
3078 .module_unref = my_module_unref,
3079 .dial_digits = my_pri_dial_digits,
3080 .open_media = my_pri_ss7_open_media,
3081 .ami_channel_event = my_ami_channel_event,
3082 .destroy_later = pri_queue_for_destruction,
3084 #endif /* defined(HAVE_PRI) */
3086 #if defined(HAVE_SS7)
3089 * \brief Handle the SS7 link exception.
3092 * \param linkset Controlling linkset for the channel.
3093 * \param which Link index of the signaling channel.
3097 static void my_handle_link_exception(struct sig_ss7_linkset *linkset, int which)
3101 if (ioctl(linkset->fds[which], DAHDI_GETEVENT, &event)) {
3102 ast_log(LOG_ERROR, "SS7: Error in exception retrieval on span %d/%d!\n",
3103 linkset->span, which);
3107 case DAHDI_EVENT_NONE:
3109 case DAHDI_EVENT_ALARM:
3110 ast_log(LOG_ERROR, "SS7 got event: %s(%d) on span %d/%d\n",
3111 event2str(event), event, linkset->span, which);
3112 sig_ss7_link_alarm(linkset, which);
3114 case DAHDI_EVENT_NOALARM:
3115 ast_log(LOG_ERROR, "SS7 got event: %s(%d) on span %d/%d\n",
3116 event2str(event), event, linkset->span, which);
3117 sig_ss7_link_noalarm(linkset, which);
3120 ast_log(LOG_NOTICE, "SS7 got event: %s(%d) on span %d/%d\n",
3121 event2str(event), event, linkset->span, which);
3125 #endif /* defined(HAVE_SS7) */
3127 #if defined(HAVE_SS7)
3128 static void my_ss7_set_loopback(void *pvt, int enable)
3130 struct dahdi_pvt *p = pvt;
3132 if (ioctl(p->subs[SUB_REAL].dfd, DAHDI_LOOPBACK, &enable)) {
3133 ast_log(LOG_WARNING, "Unable to set loopback on channel %d: %s\n", p->channel,
3137 #endif /* defined(HAVE_SS7) */
3139 #if defined(HAVE_SS7)
3142 * \brief Find the linkset to which SS7 belongs.
3145 * \param ss7 structure to match on.
3147 * \retval linkset if found.
3148 * \retval NULL if not found.
3150 static struct sig_ss7_linkset *my_ss7_find_linkset(struct ss7 *ss7)
3158 for (idx = 0; idx < NUM_SPANS; ++idx) {
3159 if (linksets[idx].ss7.ss7 == ss7) {
3160 return &linksets[idx].ss7;
3165 #endif /* defined(HAVE_SS7) */
3167 #if defined(HAVE_SS7)
3170 * \brief Create a new asterisk channel structure for SS7.
3173 * \param pvt Private channel structure.
3174 * \param state Initial state of new channel.
3175 * \param law Combanding law to use.
3176 * \param exten Dialplan extension for incoming call.
3177 * \param requestor Channel requesting this new channel.
3179 * \retval ast_channel on success.
3180 * \retval NULL on error.
3182 static struct ast_channel *my_new_ss7_ast_channel(void *pvt, int state, enum sig_ss7_law law, char *exten, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor)
3184 struct dahdi_pvt *p = pvt;
3187 struct ast_callid *callid = NULL;
3188 int callid_created = ast_callid_threadstorage_auto(&callid);
3190 /* Set to audio mode at this point */
3192 if (ioctl(p->subs[SUB_REAL].dfd, DAHDI_AUDIOMODE, &audio) == -1)
3193 ast_log(LOG_WARNING, "Unable to set audio mode on channel %d to %d: %s\n",
3194 p->channel, audio, strerror(errno));
3196 if (law != SIG_SS7_DEFLAW) {
3197 dahdi_setlaw(p->subs[SUB_REAL].dfd,
3198 (law == SIG_SS7_ULAW) ? DAHDI_LAW_MULAW : DAHDI_LAW_ALAW);
3201 ast_copy_string(p->exten, exten, sizeof(p->exten));
3205 case SIG_SS7_DEFLAW:
3209 newlaw = DAHDI_LAW_ALAW;
3212 newlaw = DAHDI_LAW_MULAW;
3215 return dahdi_new_callid_clean(p, state, 0, SUB_REAL, newlaw, assignedids, requestor, callid, callid_created);
3217 #endif /* defined(HAVE_SS7) */
3219 #if defined(HAVE_SS7)
3220 static int sig_ss7_tone_to_dahditone(enum sig_ss7_tone tone)
3223 case SIG_SS7_TONE_RINGTONE:
3224 return DAHDI_TONE_RINGTONE;
3225 case SIG_SS7_TONE_STUTTER:
3226 return DAHDI_TONE_STUTTER;
3227 case SIG_SS7_TONE_CONGESTION:
3228 return DAHDI_TONE_CONGESTION;
3229 case SIG_SS7_TONE_DIALTONE:
3230 return DAHDI_TONE_DIALTONE;
3231 case SIG_SS7_TONE_DIALRECALL: