476 lines
13 KiB
C
476 lines
13 KiB
C
/*
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* (CAPI*)
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*
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* An implementation of Common ISDN API 2.0 for
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* Asterisk / OpenPBX.org
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*
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* Copyright (C) 2005-2006 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 _PBX_CAPI_H
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#define _PBX_CAPI_H
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#define CAPI_MAX_CONTROLLERS 16
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#define 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 CAPI_MAX_B3_BLOCK_SIZE 160
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#define CAPI_BCHANS 120
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#define ALL_SERVICES 0x1FFF03FF
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#define CAPI_ISDNMODE_MSN 0
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#define CAPI_ISDNMODE_DID 1
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#define RTP_HEADER_SIZE 12
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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 int 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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* define some private functions
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*/
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#define cc_mutex_t ast_mutex_t
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#define cc_mutex_init ast_mutex_init
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#define cc_mutex_lock(x) ast_mutex_lock(x)
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#define cc_mutex_unlock(x) ast_mutex_unlock(x)
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#define cc_mutex_destroy(x) ast_mutex_destroy(x)
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#define cc_log(x...) ast_log(x)
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#define cc_pbx_verbose(x...) ast_verbose(x)
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#define cc_copy_string(dst, src, size) ast_copy_string(dst, src, size)
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#ifdef PBX_IS_OPBX
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#define CC_CHANNEL_PVT(c) (c)->tech_pvt
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#else /* PBX_IS_OPBX */
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#ifndef AST_MUTEX_DEFINE_STATIC
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#define AST_MUTEX_DEFINE_STATIC(mutex) \
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static cc_mutex_t mutex = AST_MUTEX_INITIALIZER
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#endif
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/*
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* definitions for nice compatibility
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*/
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#define CC_CHANNEL_PVT(c) (c)->tech_pvt
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#define CC_BRIDGE_RETURN enum ast_bridge_result
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#endif /* PBX_IS_OPBX */
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/*
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* prototypes
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*/
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extern unsigned capi_ApplID;
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extern MESSAGE_EXCHANGE_ERROR _capi_put_cmsg(_cmsg *CMSG);
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extern _cword get_capi_MessageNumber(void);
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extern void cc_verbose(int o_v, int c_d, char *text, ...);
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/*
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* B protocol settings
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*/
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#define CC_BPROTO_TRANSPARENT 0
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#define CC_BPROTO_FAXG3 1
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#define CC_BPROTO_RTP 2
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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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struct fax3proto3 {
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unsigned char len;
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unsigned short resolution;
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unsigned short format;
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unsigned char Infos[100];
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} __attribute__((__packed__));
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typedef struct fax3proto3 B3_PROTO_FAXG3;
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/* duration in ms for sending and detecting dtmfs */
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#define CAPI_DTMF_DURATION 0x50
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#define CAPI_NATIONAL_PREF "0"
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#define 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 0x0001
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#define FACILITYSELECTOR_SUPPLEMENTARY 0x0003
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#define FACILITYSELECTOR_LINE_INTERCONNECT 0x0005
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#define FACILITYSELECTOR_ECHO_CANCEL 0x0008
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#define FACILITYSELECTOR_FAX_OVER_IP 0x00fd
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#define FACILITYSELECTOR_VOICE_OVER_IP 0x00fe
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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 -> DIS
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*
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* outgoing call:
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* DIS -> CONP -> 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_DISCONNECTING 3
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#define CAPI_STATE_DISCONNECTED 4
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#define CAPI_STATE_CONNECTPENDING 5
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#define CAPI_STATE_ANSWERING 6
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#define CAPI_STATE_DID 7
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#define CAPI_STATE_INCALL 8
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#define CAPI_STATE_ONHOLD 10
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#define CAPI_B3_DONT 0
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#define CAPI_B3_ALWAYS 1
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#define CAPI_B3_ON_SUCCESS 2
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#define CAPI_MAX_STRING 2048
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#define CAPI_FAX_DETECT_INCOMING 0x00000001
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#define CAPI_FAX_DETECT_OUTGOING 0x00000002
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#define CAPI_FAX_STATE_HANDLED 0x00010000
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#define CAPI_FAX_STATE_ACTIVE 0x00020000
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#define CAPI_FAX_STATE_ERROR 0x00040000
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#define CAPI_FAX_STATE_MASK 0xffff0000
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struct cc_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 0x00000001
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#define CAPI_ISDN_STATE_SETUP_ACK 0x00000002
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#define CAPI_ISDN_STATE_HOLD 0x00000004
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#define CAPI_ISDN_STATE_ECT 0x00000008
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#define CAPI_ISDN_STATE_PROGRESS 0x00000010
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#define CAPI_ISDN_STATE_LI 0x00000020
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#define CAPI_ISDN_STATE_DISCONNECT 0x00000040
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#define CAPI_ISDN_STATE_DID 0x00000080
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#define CAPI_ISDN_STATE_B3_PEND 0x00000100
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#define CAPI_ISDN_STATE_B3_UP 0x00000200
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#define CAPI_ISDN_STATE_B3_CHANGE 0x00000400
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#define CAPI_ISDN_STATE_RTP 0x00000800
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#define CAPI_ISDN_STATE_HANGUP 0x00001000
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#define CAPI_ISDN_STATE_EC 0x00002000
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#define CAPI_ISDN_STATE_PBX 0x80000000
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#define CAPI_CHANNELTYPE_B 0
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#define CAPI_CHANNELTYPE_D 1
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/* ! Private data for a capi device */
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struct capi_pvt {
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cc_mutex_t lock;
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int readerfd;
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int writerfd;
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struct ast_frame f;
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unsigned char frame_data[CAPI_MAX_B3_BLOCK_SIZE + AST_FRIENDLY_OFFSET + RTP_HEADER_SIZE];
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ast_cond_t event_trigger;
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unsigned int waitevent;
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char name[CAPI_MAX_STRING];
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char vname[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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/* 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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/* send buffer */
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unsigned char send_buffer[CAPI_MAX_B3_BLOCKS *
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(CAPI_MAX_B3_BLOCK_SIZE + AST_FRIENDLY_OFFSET)];
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unsigned short send_buffer_handle;
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/* receive buffer */
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unsigned char rec_buffer[CAPI_MAX_B3_BLOCK_SIZE + AST_FRIENDLY_OFFSET + RTP_HEADER_SIZE];
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/* current state */
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int state;
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/* the state of the line */
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unsigned int isdnstate;
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int cause;
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/* which b-protocol is active */
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int bproto;
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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[CAPI_MAX_STRING];
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/*! Prefix to Build CID */
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char prefix[AST_MAX_EXTENSION];
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/* the default caller id */
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char defaultcid[CAPI_MAX_STRING];
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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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ast_group_t callgroup;
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ast_group_t group;
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/* 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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/* 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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/* line interconnect allowed */
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int bridge;
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/* channeltype */
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int channeltype;
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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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/* Fax status */
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unsigned int FaxState;
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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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/* outgoing queue count */
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int B3q;
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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 cc_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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/* RTP */
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struct ast_rtp *rtp;
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int capability;
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int rtpcodec;
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int codec;
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unsigned int timestamp;
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/*! Next channel in list */
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struct capi_pvt *next;
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};
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struct cc_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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} __attribute__((__packed__));
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struct cc_capi_conf {
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char name[CAPI_MAX_STRING];
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char language[MAX_LANGUAGE];
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char incomingmsn[CAPI_MAX_STRING];
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char defaultcid[CAPI_MAX_STRING];
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char context[AST_MAX_EXTENSION];
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char controllerstr[CAPI_MAX_STRING];
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char prefix[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 ecnlp;
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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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int bridge;
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unsigned int faxsetting;
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ast_group_t callgroup;
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ast_group_t group;
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float rxgain;
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float txgain;
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struct ast_codec_pref prefs;
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int capability;
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};
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struct cc_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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/* 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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int lineinterconnect;
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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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/* RTP */
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int rtpcodec;
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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_CIPI_SPEECH 0x01
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#define CAPI_CIPI_DIGITAL 0x02
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#define CAPI_CIPI_RESTRICTED_DIGITAL 0x03
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#define CAPI_CIPI_3K1AUDIO 0x04
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#define CAPI_CIPI_7KAUDIO 0x05
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#define CAPI_CIPI_VIDEO 0x06
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#define CAPI_CIPI_PACKET_MODE 0x07
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#define CAPI_CIPI_56KBIT_RATE_ADAPTION 0x08
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#define CAPI_CIPI_DIGITAL_W_TONES 0x09
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#define CAPI_CIPI_TELEPHONY 0x10
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#define CAPI_CIPI_FAX_G2_3 0x11
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#define CAPI_CIPI_FAX_G4C1 0x12
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#define CAPI_CIPI_FAX_G4C2_3 0x13
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#define CAPI_CIPI_TELETEX_PROCESSABLE 0x14
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#define CAPI_CIPI_TELETEX_BASIC 0x15
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#define CAPI_CIPI_VIDEOTEX 0x16
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#define CAPI_CIPI_TELEX 0x17
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#define CAPI_CIPI_X400 0x18
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#define CAPI_CIPI_X200 0x19
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#define CAPI_CIPI_7K_TELEPHONY 0x1a
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#define CAPI_CIPI_VIDEO_TELEPHONY_C1 0x1b
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#define CAPI_CIPI_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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