417 lines
11 KiB
C
417 lines
11 KiB
C
/*
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* (CAPI*)
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*
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* An implementation of Common ISDN API 2.0 for Asterisk
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*
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* Copyright (C) 2005 Cytronics & Melware
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*
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* Armin Schindler <armin@melware.de>
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*
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* Reworked, but based on the work of
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* Copyright (C) 2002-2005 Junghanns.NET GmbH
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*
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* Klaus-Peter Junghanns <kapejod@ns1.jnetdns.de>
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*
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* This program is free software and may be modified and
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* distributed under the terms of the GNU Public License.
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*/
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#ifndef _ASTERISK_CAPI_H
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#define _ASTERISK_CAPI_H
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#define AST_CAPI_MAX_CONTROLLERS 16
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#define AST_CAPI_MAX_DEVICES 30
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#define AST_CAPI_MAX_BUF 160
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#define AST_CAPI_MAX_B3_BLOCKS 7
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/* was : 130 bytes Alaw = 16.25 ms audio not suitable for VoIP */
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/* now : 160 bytes Alaw = 20 ms audio */
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/* you can tune this to your need. higher value == more latency */
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#define AST_CAPI_MAX_B3_BLOCK_SIZE 160
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#define AST_CAPI_BCHANS 120
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#define ALL_SERVICES 0x1FFF03FF
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#define AST_CAPI_ISDNMODE_MSN 0
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#define AST_CAPI_ISDNMODE_DID 1
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/*
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* helper for ast_verbose with different verbose settings
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*/
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#define cc_ast_verbose(o_v, c_d, text...) \
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do { \
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if ((o_v == 0) || (option_verbose > o_v)) { \
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if ((!c_d) || ((c_d) && (capidebug))) { \
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ast_mutex_lock(&verbose_lock); \
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ast_verbose(text); \
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ast_mutex_unlock(&verbose_lock); \
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} \
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} \
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} while(0)
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/* some helper functions */
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static inline void write_capi_word(void *m, unsigned short val)
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{
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((unsigned char *)m)[0] = val & 0xff;
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((unsigned char *)m)[1] = (val >> 8) & 0xff;
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}
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static inline unsigned short read_capi_word(void *m)
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{
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unsigned short val;
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val = ((unsigned char *)m)[0] | (((unsigned char *)m)[1] << 8);
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return (val);
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}
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static inline void write_capi_dword(void *m, unsigned int val)
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{
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((unsigned char *)m)[0] = val & 0xff;
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((unsigned char *)m)[1] = (val >> 8) & 0xff;
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((unsigned char *)m)[2] = (val >> 16) & 0xff;
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((unsigned char *)m)[3] = (val >> 24) & 0xff;
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}
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static inline unsigned short read_capi_dword(void *m)
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{
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unsigned int val;
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val = ((unsigned char *)m)[0] | (((unsigned char *)m)[1] << 8) |
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(((unsigned char *)m)[2] << 16) | (((unsigned char *)m)[3] << 24);
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return (val);
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}
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/*
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* definitions for compatibility with older versions of ast*
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*/
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#ifdef CC_AST_HAVE_TECH_PVT
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#define CC_AST_CHANNEL_PVT(c) c->tech_pvt
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#else
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#define CC_AST_CHANNEL_PVT(c) c->pvt->pvt
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#endif
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#ifndef AST_MUTEX_DEFINE_STATIC
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#define AST_MUTEX_DEFINE_STATIC(mutex) \
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static ast_mutex_t mutex = AST_MUTEX_INITIALIZER
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#endif
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/* FAX Resolutions */
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#define FAX_STANDARD_RESOLUTION 0
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#define FAX_HIGH_RESOLUTION 1
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/* FAX Formats */
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#define FAX_SFF_FORMAT 0
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#define FAX_PLAIN_FORMAT 1
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#define FAX_PCX_FORMAT 2
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#define FAX_DCX_FORMAT 3
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#define FAX_TIFF_FORMAT 4
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#define FAX_ASCII_FORMAT 5
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#define FAX_EXTENDED_ASCII_FORMAT 6
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#define FAX_BINARY_FILE_TRANSFER_FORMAT 7
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/* Fax struct */
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typedef struct fax3proto3 {
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unsigned char len;
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unsigned short resolution __attribute__ ((packed));
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unsigned short format __attribute__ ((packed));
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unsigned char Infos[100] __attribute__ ((packed));
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} B3_PROTO_FAXG3;
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/* duration in ms for sending and detecting dtmfs */
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#define AST_CAPI_DTMF_DURATION 0x40
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#define AST_CAPI_NATIONAL_PREF "0"
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#define AST_CAPI_INTERNAT_PREF "00"
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#define ECHO_TX_COUNT 5 /* 5 x 20ms = 100ms */
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#define ECHO_EFFECTIVE_TX_COUNT 3 /* 2 x 20ms = 40ms == 40-100ms ... ignore first 40ms */
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#define ECHO_TXRX_RATIO 2.3 /* if( rx < (txavg/ECHO_TXRX_RATIO) ) rx=0; */
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#define FACILITYSELECTOR_DTMF 1
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#define FACILITYSELECTOR_SUPPLEMENTARY 3
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#define FACILITYSELECTOR_LINE_INTERCONNECT 5
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#define FACILITYSELECTOR_ECHO_CANCEL 8
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#define CC_HOLDTYPE_LOCAL 0
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#define CC_HOLDTYPE_HOLD 1
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#define CC_HOLDTYPE_NOTIFY 2
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/*
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* state combination for a normal incoming call:
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* DIS -> ALERT -> CON -> BCON -> CON -> DIS
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*
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* outgoing call:
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* DIS -> CONP -> BCONNECTED -> CON -> DIS
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*/
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#define CAPI_STATE_ALERTING 1
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#define CAPI_STATE_CONNECTED 2
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#define CAPI_STATE_BCONNECTED 3
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#define CAPI_STATE_DISCONNECTING 4
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#define CAPI_STATE_DISCONNECTED 5
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#define CAPI_STATE_CONNECTPENDING 6
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#define CAPI_STATE_ANSWERING 7
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#define CAPI_STATE_DID 8
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#define CAPI_STATE_INCALL 9
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#define CAPI_STATE_ONHOLD 10
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#define AST_CAPI_B3_DONT 0
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#define AST_CAPI_B3_ALWAYS 1
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#define AST_CAPI_B3_ON_SUCCESS 2
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#define AST_CAPI_MAX_STRING 2048
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struct ast_capi_gains {
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unsigned char txgains[256];
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unsigned char rxgains[256];
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};
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#define CAPI_ISDN_STATE_SETUP 0x01
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#define CAPI_ISDN_STATE_SETUP_ACK 0x02
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#define CAPI_ISDN_STATE_HOLD 0x04
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#define CAPI_ISDN_STATE_ECT 0x08
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/* ! Private data for a capi device */
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struct ast_capi_pvt {
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ast_mutex_t lock;
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int fd;
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int fd2;
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char name[AST_CAPI_MAX_STRING];
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/*! Channel we belong to, possibly NULL */
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struct ast_channel *owner;
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/*! Frame */
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struct ast_frame fr;
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/* capi message number */
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_cword MessageNumber;
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unsigned int NCCI;
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unsigned int PLCI;
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/* on which controller we do live */
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int controller;
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/* we could live on those */
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unsigned long controllers;
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/* send buffer */
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unsigned char send_buffer[AST_CAPI_MAX_B3_BLOCKS * AST_CAPI_MAX_B3_BLOCK_SIZE];
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unsigned short send_buffer_handle;
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/* receive buffer */
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unsigned char rec_buffer[AST_CAPI_MAX_BUF + AST_FRIENDLY_OFFSET];
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/* current state */
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int state;
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unsigned int isdnstate;
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int cause;
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char context[AST_MAX_EXTENSION];
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/*! Multiple Subscriber Number we listen to (, seperated list) */
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char incomingmsn[AST_CAPI_MAX_STRING];
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/*! Prefix to Build CID */
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char prefix[AST_MAX_EXTENSION];
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/*! Caller ID if available */
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char cid[AST_MAX_EXTENSION];
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/*! Dialed Number if available */
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char dnid[AST_MAX_EXTENSION];
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/* callerid type of number */
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int cid_ton;
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char accountcode[20];
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unsigned int callgroup;
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unsigned int group;
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/*! default language */
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char language[MAX_LANGUAGE];
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/* additional numbers to dial */
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int doOverlap;
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char overlapdigits[AST_MAX_EXTENSION];
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int calledPartyIsISDN;
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/* this is an outgoing channel */
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int outgoing;
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/* are we doing early B3 connect on this interface? */
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int earlyB3;
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/* should we do early B3 on this interface? */
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int doB3;
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/* store plci here for the call that is onhold */
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unsigned int onholdPLCI;
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/* do software dtmf detection */
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int doDTMF;
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/* CAPI echo cancellation */
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int doEC;
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int ecOption;
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int ecTail;
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int ecSelector;
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/* isdnmode MSN or DID */
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int isdnmode;
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/* NT-mode */
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int ntmode;
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/* Answer before getting digits? */
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int immediate;
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/* which holdtype */
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int holdtype;
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int doholdtype;
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/* Common ISDN Profile (CIP) */
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int cip;
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/* if not null, receiving a fax */
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FILE *fFax;
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/* Has a fax tone already been handled? */
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int faxhandled;
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/* Fax ready ? */
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int FaxState;
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/* deflect on circuitbusy */
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char deflect2[AST_MAX_EXTENSION];
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/* not all codecs supply frames in nice 160 byte chunks */
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struct ast_smoother *smoother;
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/* ok, we stop to be nice and give them the lowest possible latency 130 samples * 2 = 260 bytes */
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/* outgoing queue count */
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int B3q;
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ast_mutex_t lockB3q;
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/* do ECHO SURPRESSION */
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int ES;
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int doES;
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short txavg[ECHO_TX_COUNT];
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float rxmin;
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float txmin;
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struct ast_capi_gains g;
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float txgain;
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float rxgain;
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struct ast_dsp *vad;
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unsigned int reason;
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unsigned int reasonb3;
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/*! Next channel in list */
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struct ast_capi_pvt *next;
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};
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struct ast_capi_profile {
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unsigned short ncontrollers;
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unsigned short nbchannels;
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unsigned char globaloptions;
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unsigned char globaloptions2;
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unsigned char globaloptions3;
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unsigned char globaloptions4;
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unsigned int b1protocols;
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unsigned int b2protocols;
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unsigned int b3protocols;
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unsigned int reserved3[6];
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unsigned int manufacturer[5];
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};
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struct ast_capi_conf {
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char name[AST_CAPI_MAX_STRING];
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char incomingmsn[AST_CAPI_MAX_STRING];
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char context[AST_MAX_EXTENSION];
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char controllerstr[AST_CAPI_MAX_STRING];
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char prefix[AST_MAX_EXTENSION];
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char deflect2[AST_MAX_EXTENSION];
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char accountcode[20];
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int devices;
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int softdtmf;
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int echocancel;
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int ecoption;
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int ectail;
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int ecSelector;
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int isdnmode;
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int ntmode;
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int immediate;
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int holdtype;
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int es;
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unsigned int callgroup;
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unsigned int group;
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float rxgain;
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float txgain;
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};
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struct ast_capi_controller {
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/* which controller is this? */
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int controller;
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/* how many bchans? */
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int nbchannels;
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/* free bchans */
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int nfreebchannels;
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/* DID */
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int isdnmode;
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/* features: */
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int dtmf;
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int echocancel;
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int sservices; /* supplementray services */
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/* supported sservices: */
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int holdretrieve;
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int terminalportability;
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int ECT;
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int threePTY;
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int CF;
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int CD;
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int MCID;
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int CCBS;
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int MWI;
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int CCNR;
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int CONF;
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};
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/* ETSI 300 102-1 information element identifiers */
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#define CAPI_ETSI_IE_CAUSE 0x08
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#define CAPI_ETSI_IE_PROGRESS_INDICATOR 0x1e
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#define CAPI_ETSI_IE_CALLED_PARTY_NUMBER 0x70
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/* ETIS 300 102-1 message types */
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#define CAPI_ETSI_ALERTING 0x01
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#define CAPI_ETSI_SETUP_ACKKNOWLEDGE 0x0d
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#define CAPI_ETSI_DISCONNECT 0x45
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/* ETSI 300 102-1 Numbering Plans */
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#define CAPI_ETSI_NPLAN_NATIONAL 0x20
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#define CAPI_ETSI_NPLAN_INTERNAT 0x10
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/* Common ISDN Profiles (CIP) */
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#define CAPI_CIP_SPEECH 0x01
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#define CAPI_CIP_DIGITAL 0x02
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#define CAPI_CIP_RESTRICTED_DIGITAL 0x03
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#define CAPI_CIP_3K1AUDIO 0x04
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#define CAPI_CIP_7KAUDIO 0x05
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#define CAPI_CIP_VIDEO 0x06
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#define CAPI_CIP_PACKET_MODE 0x07
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#define CAPI_CIP_56KBIT_RATE_ADAPTION 0x08
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#define CAPI_CIP_DIGITAL_W_TONES 0x09
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#define CAPI_CIP_TELEPHONY 0x10
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#define CAPI_CIP_FAX_G2_3 0x11
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#define CAPI_CIP_FAX_G4C1 0x12
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#define CAPI_CIP_FAX_G4C2_3 0x13
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#define CAPI_CIP_TELETEX_PROCESSABLE 0x14
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#define CAPI_CIP_TELETEX_BASIC 0x15
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#define CAPI_CIP_VIDEOTEX 0x16
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#define CAPI_CIP_TELEX 0x17
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#define CAPI_CIP_X400 0x18
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#define CAPI_CIP_X200 0x19
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#define CAPI_CIP_7K_TELEPHONY 0x1a
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#define CAPI_CIP_VIDEO_TELEPHONY_C1 0x1b
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#define CAPI_CIP_VIDEO_TELEPHONY_C2 0x1c
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/* Transfer capabilities */
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#define PRI_TRANS_CAP_SPEECH 0x00
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#define PRI_TRANS_CAP_DIGITAL 0x08
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#define PRI_TRANS_CAP_RESTRICTED_DIGITAL 0x09
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#define PRI_TRANS_CAP_3K1AUDIO 0x10
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#define PRI_TRANS_CAP_DIGITAL_W_TONES 0x11
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#define PRI_TRANS_CAP_VIDEO 0x18
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#endif
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