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asterisk/channels/misdn/isdn_lib.h

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/*
* Chan_Misdn -- Channel Driver for Asterisk
*
* Interface to mISDN
*
* Copyright (C) 2004, Christian Richter
*
* Christian Richter <crich@beronet.com>
*
* This program is free software, distributed under the terms of
* the GNU General Public License
*/
/*! \file
* \brief Interface to mISDN
*
* \author Christian Richter <crich@beronet.com>
*/
#ifndef TE_LIB
#define TE_LIB
#include <mISDNuser/suppserv.h>
/** For initialization usage **/
/* typedef int ie_nothing_t ;*/
/** end of init usage **/
/*
* uncomment the following to make chan_misdn create
* record files in /tmp/misdn-{rx|tx}-PortChannel format
* */
/*#define MISDN_SAVE_DATA*/
#ifdef WITH_BEROEC
typedef int beroec_t;
enum beroec_type {
BEROEC_FULLBAND=0,
BEROEC_SUBBAND,
BEROEC_FASTSUBBAND
};
void beroec_init(void);
void beroec_exit(void);
beroec_t *beroec_new(int tail, enum beroec_type type, int anti_howl,
int tonedisable, int zerocoeff, int adapt, int nlp);
void beroec_destroy(beroec_t *ec);
int beroec_cancel_alaw_chunk(beroec_t *ec,
char *send,
char *receive,
int len);
int beroec_version(void);
#endif
enum tone_e {
TONE_NONE=0,
TONE_DIAL,
TONE_ALERTING,
TONE_FAR_ALERTING,
TONE_BUSY,
TONE_HANGUP,
TONE_CUSTOM,
TONE_FILE
};
#define MAX_BCHANS 31
enum bchannel_state {
BCHAN_CLEANED=0,
BCHAN_EMPTY,
BCHAN_SETUP,
BCHAN_SETUPED,
BCHAN_ACTIVE,
BCHAN_ACTIVATED,
BCHAN_BRIDGE,
BCHAN_BRIDGED,
BCHAN_RELEASE,
BCHAN_RELEASED,
BCHAN_CLEAN,
BCHAN_CLEAN_REQUEST,
BCHAN_ERROR
};
enum misdn_err_e {
ENOCHAN=1
};
enum mISDN_NUMBER_PLAN {
NUMPLAN_UNKNOWN = 0x0,
NUMPLAN_ISDN = 0x1, /* ISDN/Telephony numbering plan E.164 */
NUMPLAN_DATA = 0x3, /* Data numbering plan X.121 */
NUMPLAN_TELEX = 0x4, /* Telex numbering plan F.69 */
NUMPLAN_NATIONAL = 0x8,
NUMPLAN_PRIVATE = 0x9
};
enum mISDN_NUMBER_TYPE {
NUMTYPE_UNKNOWN = 0x0,
NUMTYPE_INTERNATIONAL = 0x1,
NUMTYPE_NATIONAL = 0x2,
NUMTYPE_NETWORK_SPECIFIC = 0x3,
NUMTYPE_SUBSCRIBER = 0x4,
NUMTYPE_ABBREVIATED = 0x5
};
enum event_response_e {
RESPONSE_IGNORE_SETUP_WITHOUT_CLOSE,
RESPONSE_IGNORE_SETUP,
RESPONSE_RELEASE_SETUP,
RESPONSE_ERR,
RESPONSE_OK
};
enum event_e {
EVENT_NOTHING,
EVENT_TONE_GENERATE,
EVENT_BCHAN_DATA,
EVENT_BCHAN_ACTIVATED,
EVENT_BCHAN_ERROR,
EVENT_CLEANUP,
EVENT_PROCEEDING,
EVENT_PROGRESS,
EVENT_SETUP,
EVENT_REGISTER,
EVENT_ALERTING,
EVENT_CONNECT,
EVENT_SETUP_ACKNOWLEDGE,
EVENT_CONNECT_ACKNOWLEDGE ,
EVENT_USER_INFORMATION,
EVENT_SUSPEND_REJECT,
EVENT_RESUME_REJECT,
EVENT_HOLD,
EVENT_SUSPEND,
EVENT_RESUME,
EVENT_HOLD_ACKNOWLEDGE,
EVENT_SUSPEND_ACKNOWLEDGE,
EVENT_RESUME_ACKNOWLEDGE,
EVENT_HOLD_REJECT,
EVENT_RETRIEVE,
EVENT_RETRIEVE_ACKNOWLEDGE,
EVENT_RETRIEVE_REJECT,
EVENT_DISCONNECT,
EVENT_RESTART,
EVENT_RELEASE,
EVENT_RELEASE_COMPLETE,
EVENT_FACILITY,
EVENT_NOTIFY,
EVENT_STATUS_ENQUIRY,
EVENT_INFORMATION,
EVENT_STATUS,
EVENT_TIMEOUT,
EVENT_DTMF_TONE,
EVENT_NEW_L3ID,
EVENT_NEW_BC,
EVENT_PORT_ALARM,
EVENT_NEW_CHANNEL,
EVENT_UNKNOWN
};
enum ie_name_e {
IE_DUMMY,
IE_LAST
};
enum { /* bearer capability */
INFO_CAPABILITY_SPEECH=0,
INFO_CAPABILITY_AUDIO_3_1K=0x10 ,
INFO_CAPABILITY_AUDIO_7K=0x11 ,
INFO_CAPABILITY_VIDEO =0x18,
INFO_CAPABILITY_DIGITAL_UNRESTRICTED =0x8,
INFO_CAPABILITY_DIGITAL_RESTRICTED =0x09,
INFO_CAPABILITY_DIGITAL_UNRESTRICTED_TONES
};
enum { /* progress indicators */
INFO_PI_CALL_NOT_E2E_ISDN =0x01,
INFO_PI_CALLED_NOT_ISDN =0x02,
INFO_PI_CALLER_NOT_ISDN =0x03,
INFO_PI_CALLER_RETURNED_TO_ISDN =0x04,
INFO_PI_INBAND_AVAILABLE =0x08,
INFO_PI_DELAY_AT_INTERF =0x0a,
INFO_PI_INTERWORKING_WITH_PUBLIC =0x10,
INFO_PI_INTERWORKING_NO_RELEASE =0x11,
INFO_PI_INTERWORKING_NO_RELEASE_PRE_ANSWER =0x12,
INFO_PI_INTERWORKING_NO_RELEASE_POST_ANSWER =0x13
};
/*!
* \brief Q.931 encoded redirecting reason
*/
enum mISDN_REDIRECTING_REASON {
mISDN_REDIRECTING_REASON_UNKNOWN = 0x0,
/*! Call forwarding busy or called DTE busy */
mISDN_REDIRECTING_REASON_CALL_FWD_BUSY = 0x1,
/*! Call forwarding no reply */
mISDN_REDIRECTING_REASON_NO_REPLY = 0x2,
/*! Call deflection */
mISDN_REDIRECTING_REASON_DEFLECTION = 0x4,
/*! Called DTE out of order */
mISDN_REDIRECTING_REASON_OUT_OF_ORDER = 0x9,
/*! Call forwarding by the called DTE */
mISDN_REDIRECTING_REASON_CALL_FWD_DTE = 0xA,
/*! Call forwarding unconditional or systematic call redirection */
mISDN_REDIRECTING_REASON_CALL_FWD = 0xF
};
/*!
* \brief Notification description code enumeration
*/
enum mISDN_NOTIFY_CODE {
mISDN_NOTIFY_CODE_INVALID = -1,
/*! Call is placed on hold (Q.931) */
mISDN_NOTIFY_CODE_USER_SUSPEND = 0x00,
/*! Call is taken off of hold (Q.931) */
mISDN_NOTIFY_CODE_USER_RESUME = 0x01,
/*! Call is diverting (EN 300 207-1 Section 7.2.1) */
mISDN_NOTIFY_CODE_CALL_IS_DIVERTING = 0x7B,
/*! Call diversion is enabled (cfu, cfb, cfnr) (EN 300 207-1 Section 7.2.1) */
mISDN_NOTIFY_CODE_DIVERSION_ACTIVATED = 0x68,
/*! Call transfer, alerting (EN 300 369-1 Section 7.2) */
mISDN_NOTIFY_CODE_CALL_TRANSFER_ALERTING = 0x69,
/*! Call transfer, active(answered) (EN 300 369-1 Section 7.2) */
mISDN_NOTIFY_CODE_CALL_TRANSFER_ACTIVE = 0x6A,
};
enum { /*CODECS*/
INFO_CODEC_ULAW=2,
INFO_CODEC_ALAW=3
};
enum layer_e {
L3,
L2,
L1,
UNKNOWN
};
/*! Maximum phone number (address) length plus null terminator */
#define MISDN_MAX_NUMBER_LEN (31 + 1)
/*! Maximum name length plus null terminator (From ECMA-164) */
#define MISDN_MAX_NAME_LEN (50 + 1)
/*! Maximum subaddress length plus null terminator */
#define MISDN_MAX_SUBADDRESS_LEN (23 + 1)
/*! Maximum keypad facility content length plus null terminator */
#define MISDN_MAX_KEYPAD_LEN (31 + 1)
/*! \brief Dialed/Called information struct */
struct misdn_party_dialing {
/*! \brief Type-of-number in ISDN terms for the dialed/called number */
enum mISDN_NUMBER_TYPE number_type;
/*! \brief Type-of-number numbering plan. */
enum mISDN_NUMBER_PLAN number_plan;
/*! \brief Dialed/Called Phone Number (Address) */
char number[MISDN_MAX_NUMBER_LEN];
/*! \brief Dialed/Called Subaddress number */
char subaddress[MISDN_MAX_SUBADDRESS_LEN];
};
/*! \brief Connected-Line/Calling/Redirecting ID info struct */
struct misdn_party_id {
/*! \brief Number presentation restriction code
* 0=Allowed, 1=Restricted, 2=Unavailable
*/
int presentation;
/*! \brief Number screening code
* 0=Unscreened, 1=Passed Screen, 2=Failed Screen, 3=Network Number
*/
int screening;
/*! \brief Type-of-number in ISDN terms for the number */
enum mISDN_NUMBER_TYPE number_type;
/*! \brief Type-of-number numbering plan. */
enum mISDN_NUMBER_PLAN number_plan;
/*! \brief Subscriber Name
* \note The name is currently obtained from Asterisk for
* potential use in display ie's since basic ISDN does
* not support names directly.
*/
char name[MISDN_MAX_NAME_LEN];
/*! \brief Phone number (Address) */
char number[MISDN_MAX_NUMBER_LEN];
/*! \brief Subaddress number */
char subaddress[MISDN_MAX_SUBADDRESS_LEN];
};
/*! \brief Redirecting information struct */
struct misdn_party_redirecting {
/*! \brief Who is redirecting the call (Sent to the party the call is redirected toward) */
struct misdn_party_id from;
/*! \brief Where the call is being redirected toward (Sent to the calling party) */
struct misdn_party_id to;
/*! \brief Reason a call is being redirected (Q.931 field value) */
enum mISDN_REDIRECTING_REASON reason;
/*! \brief Number of times the call has been redirected */
int count;
/*! \brief TRUE if the redirecting.to information has changed */
int to_changed;
};
/*! \brief B channel control structure */
struct misdn_bchannel {
/*! \brief B channel send locking structure */
struct send_lock *send_lock;
#if defined(AST_MISDN_ENHANCEMENTS)
/*! \brief The BC, HLC (optional) and LLC (optional) contents from the SETUP message. */
struct Q931_Bc_Hlc_Llc setup_bc_hlc_llc;
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
/*!
* \brief Dialed/Called information struct
* \note The number_type element is set to "dialplan" in /etc/asterisk/misdn.conf for outgoing calls
*/
struct misdn_party_dialing dialed;
/*! \brief Originating/Caller ID information struct
* \note The number_type element can be set to "localdialplan" in /etc/asterisk/misdn.conf for outgoing calls
* \note The number element can be set to "callerid" in /etc/asterisk/misdn.conf for outgoing calls
*/
struct misdn_party_id caller;
/*! \brief Incoming Caller ID string tag for special purpose
* \note The element can be set to "incoming_cid_tag" in /etc/asterisk/misdn.conf for incoming calls
*/
char incoming_cid_tag[MISDN_MAX_NAME_LEN];
/*! \brief Connected-Party/Connected-Line ID information struct
* \note The number_type element can be set to "cpndialplan" in /etc/asterisk/misdn.conf for outgoing calls
*/
struct misdn_party_id connected;
/*! \brief Redirecting information struct (Where a call diversion or transfer was invoked)
* \note The redirecting subaddress is not defined in Q.931 so it is not used.
*/
struct misdn_party_redirecting redirecting;
/*! \brief TRUE if this is a dummy BC record */
int dummy;
/*! \brief TRUE if NT side of protocol (TE otherwise) */
int nt;
/*! \brief TRUE if ISDN-PRI (ISDN-BRI otherwise) */
int pri;
/*! \brief Logical Layer 1 port associated with this B channel */
int port;
/** init stuff **/
/*! \brief B Channel mISDN driver stack ID */
int b_stid;
/* int b_addr; */
/*! \brief B Channel mISDN driver layer ID from mISDN_new_layer() */
int layer_id;
/*! \brief B channel layer; set to 3 or 4 */
int layer;
/* state stuff */
/*! \brief TRUE if DISCONNECT needs to be sent to clear a call */
int need_disconnect;
/*! \brief TRUE if RELEASE needs to be sent to clear a call */
int need_release;
/*! \brief TRUE if RELEASE_COMPLETE needs to be sent to clear a call */
int need_release_complete;
/*! \brief TRUE if allocate higher B channels first */
int dec;
/* var stuff */
/*! \brief Layer 3 process ID */
int l3_id;
/*! \brief B channel process ID (1-5000) */
int pid;
/*! \brief Not used. Saved mISDN stack CONNECT_t ces value */
int ces;
/*! \brief B channel to restart if received a RESTART message */
int restart_channel;
/*! \brief Assigned B channel number B1, B2... 0 if not assigned */
int channel;
/*! \brief TRUE if the B channel number is preselected */
int channel_preselected;
/*! \brief TRUE if the B channel is allocated from the REGISTER pool */
int is_register_pool;
/*! \brief TRUE if B channel record is in use */
int in_use;
/*! \brief Time when empty_bc() last called on this record */
struct timeval last_used;
/*! \brief TRUE if call waiting */
int cw;
/*! \brief B Channel mISDN driver layer ID from mISDN_get_layerid() */
int addr;
/*! \brief B channel speech sample data buffer */
char *bframe;
/*! \brief B channel speech sample data buffer size */
int bframe_len;
int time_usec; /* Not used */
/*! \brief Not used. Contents are setup but not used. */
void *astbuf;
/*! \brief TRUE if the TE side should choose the B channel to use
* \note This value is user configurable in /etc/asterisk/misdn.conf
*/
int te_choose_channel;
/*! \brief TRUE if the call progress indicators can indicate an inband audio message for the user to listen to
* \note This value is user configurable in /etc/asterisk/misdn.conf
*/
int early_bconnect;
/*! \brief Last decoded DTMF digit from mISDN driver */
int dtmf;
/*! \brief TRUE if we should produce DTMF tones ourselves
* \note This value is user configurable in /etc/asterisk/misdn.conf
*/
int send_dtmf;
/*! \brief TRUE if we send SETUP_ACKNOWLEDGE on incoming calls anyway (instead of PROCEEDING).
*
* This requests additional INFORMATION messages, so we can
* wait for digits without issues.
* \note This value is user configurable in /etc/asterisk/misdn.conf
*/
int need_more_infos;
/*! \brief TRUE if all digits necessary to complete the call are available.
* No more INFORMATION messages are needed.
*/
int sending_complete;
/*! \brief TRUE if we will not use jollys dsp */
int nodsp;
/*! \brief TRUE if we will not use the jitter buffer system */
int nojitter;
/*! \brief Progress Indicator IE coding standard field.
* \note Collected from the incoming messages but not used.
*/
int progress_coding;
/*! \brief Progress Indicator IE location field.
* \note Collected from the incoming messages but not used.
*/
int progress_location;
/*! \brief Progress Indicator IE progress description field.
* Used to determine if there is an inband audio message present.
*/
int progress_indicator;
#if defined(AST_MISDN_ENHANCEMENTS)
/*!
* \brief TRUE if waiting for DivertingLegInformation3 to queue redirecting update.
*/
int div_leg_3_rx_wanted;
/*!
* \brief TRUE if a DivertingLegInformation3 needs to be sent with CONNECT.
*/
int div_leg_3_tx_pending;
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
/*! \brief Inbound FACILITY message function type and contents */
struct FacParm fac_in;
/*! \brief Outbound FACILITY message function type and contents.
* \note Filled in by misdn facility commands before FACILITY message sent.
*/
struct FacParm fac_out;
/* storing the current AOCD info here */
enum FacFunction AOCDtype;
union {
struct FacAOCDCurrency currency;
struct FacAOCDChargingUnit chargingUnit;
} AOCD;
/*! \brief TRUE if AOCDtype and AOCD data are ready to export to Asterisk */
int AOCD_need_export;
/*! \brief Event waiting for Layer 1 to come up */
enum event_e evq;
/*** CRYPTING STUFF ***/
int crypt; /* Initialized, Not used */
int curprx; /* Initialized, Not used */
int curptx; /* Initialized, Not used */
/*! \brief Blowfish encryption key string (secret) */
char crypt_key[255];
int crypt_state; /* Not used */
/*** CRYPTING STUFF END***/
/*! \brief Seems to have been intended for something to do with the jitter buffer.
* \note Used as a boolean. Only initialized to 0 and referenced in a couple places
*/
int active;
int upset; /* Not used */
/*! \brief TRUE if tone generator allowed to start */
int generate_tone;
/*! \brief Number of tone samples to generate */
int tone_cnt;
/*! \brief Current B Channel state */
enum bchannel_state bc_state;
/*! \brief This is used as a pending bridge join request for when bc_state becomes BCHAN_ACTIVATED */
enum bchannel_state next_bc_state;
/*! \brief Bridging conference ID */
int conf_id;
/*! \brief TRUE if this channel is on hold */
int holded;
/*! \brief TRUE if this channel is on the misdn_stack->holding list
* \note If TRUE this implies that the structure is also malloced.
*/
int stack_holder;
/*!
* \brief Put a display ie in the CONNECT message
* \details
* Put a display ie in the CONNECT message containing the following
* information if it is available (nt port only):
* 0 - Do not put the connected line information in the display ie.
* 1 - Put the available connected line name in the display ie.
* 2 - Put the available connected line number in the display ie.
* 3 - Put the available connected line name and number in the display ie.
*/
int display_connected;
/*!
* \brief Put a display ie in the SETUP message
* \details
* Put a display ie in the SETUP message containing the following
* information if it is available (nt port only):
* 0 - Do not put the caller information in the display ie.
* 1 - Put the available caller name in the display ie.
* 2 - Put the available caller number in the display ie.
* 3 - Put the available caller name and number in the display ie.
*/
int display_setup;
/*!
* \brief Select what to do with outgoing COLP information.
* \details
* 0 - pass (Send out COLP information unaltered.)
* 1 - restricted (Force COLP to restricted on all outgoing COLP information.)
* 2 - block (Do not send COLP information.)
*/
int outgoing_colp;
/*! \brief User set presentation restriction code
* 0=Allowed, 1=Restricted, 2=Unavailable
* \note It is settable by the misdn_set_opt() application.
*/
int presentation;
/*! \brief TRUE if the user set the presentation restriction code */
int set_presentation;
/*! \brief Notification indicator ie description code */
enum mISDN_NOTIFY_CODE notify_description_code;
/*! \brief SETUP message bearer capability field code value */
int capability;
/*! \brief Companding ALaw/uLaw encoding (INFO_CODEC_ALAW / INFO_CODEC_ULAW) */
int law;
/* V110 Stuff */
/*! \brief Q.931 Bearer Capability IE Information Transfer Rate field. Initialized to 0x10 (64kbit). Altered by incoming SETUP messages. */
int rate;
/*! \brief Q.931 Bearer Capability IE Transfer Mode field. Initialized to 0 (Circuit). Altered by incoming SETUP messages. */
int mode;
/*! \brief Q.931 Bearer Capability IE User Information Layer 1 Protocol field code.
* \note Collected from the incoming SETUP message but not used.
*/
int user1;
/*! \brief Q.931 Bearer Capability IE Layer 1 User Rate field.
* \note Collected from the incoming SETUP message and exported to Asterisk variable MISDN_URATE.
*/
int urate;
/*! \brief TRUE if call made in digital HDLC mode
* \note This value is user configurable in /etc/asterisk/misdn.conf.
* It is also settable by the misdn_set_opt() application.
*/
int hdlc;
/* V110 */
/*! \brief Display message that can be displayed by the user phone.
* \note Maximum displayable length is 34 or 82 octets.
* It is also settable by the misdn_set_opt() application.
*/
char display[84];
/*! \brief Q.931 Keypad Facility IE contents
* \note Contents exported and imported to Asterisk variable MISDN_KEYPAD
*/
char keypad[MISDN_MAX_KEYPAD_LEN];
/*! \brief Current overlap dialing digits to/from INFORMATION messages */
char info_dad[MISDN_MAX_NUMBER_LEN];
/*! \brief Collected digits to go into info_dad[] while waiting for a SETUP_ACKNOWLEDGE to come in. */
char infos_pending[MISDN_MAX_NUMBER_LEN];
/* unsigned char info_keypad[MISDN_MAX_KEYPAD_LEN]; */
/* unsigned char clisub[24]; */
/* unsigned char cldsub[24]; */
/*! \brief User-User information string.
* \note Contents exported and imported to Asterisk variable MISDN_USERUSER
* \note We only support ASCII strings (IA5 characters).
*/
char uu[256];
/*! \brief User-User information string length in uu[] */
int uulen;
/*! \brief Q.931 Cause for disconnection code (received)
* \note Need to use the AST_CAUSE_xxx code definitions in causes.h
*/
int cause;
/*! \brief Q.931 Cause for disconnection code (sent)
* \note Need to use the AST_CAUSE_xxx code definitions in causes.h
* \note -1 is used to suppress including the cause code in the RELEASE message.
*/
int out_cause;
/* struct misdn_bchannel hold_bc; */
/** list stuf **/
#ifdef MISDN_1_2
/*! \brief The configuration string for the mISDN dsp pipeline in /etc/asterisk/misdn.conf. */
char pipeline[128];
#else
/*! \brief TRUE if the echo cancellor is enabled */
int ec_enable;
/*! \brief Number of taps in the echo cancellor when enabled.
* \note This value is user configurable in /etc/asterisk/misdn.conf (echocancel)
*/
int ec_deftaps;
#endif
/*! \brief TRUE if the channel was allocated from the available B channels */
int channel_found;
/*! \brief Who originated the call (ORG_AST, ORG_MISDN)
* \note Set but not used when the misdn_set_opt() application enables echo cancellation.
*/
int orig;
/*! \brief Tx gain setting (range -8 to 8)
* \note This value is user configurable in /etc/asterisk/misdn.conf.
* It is also settable by the misdn_set_opt() application.
*/
int txgain;
/*! \brief Rx gain setting (range -8 to 8)
* \note This value is user configurable in /etc/asterisk/misdn.conf.
* It is also settable by the misdn_set_opt() application.
*/
int rxgain;
/*! \brief Next node in the misdn_stack.holding list */
struct misdn_bchannel *next;
};
extern enum event_response_e (*cb_event) (enum event_e event, struct misdn_bchannel *bc, void *user_data);
extern void (*cb_log) (int level, int port, char *tmpl, ...)
__attribute__ ((format (printf, 3, 4)));
extern int (*cb_jb_empty)(struct misdn_bchannel *bc, char *buffer, int len);
struct misdn_lib_iface {
enum event_response_e (*cb_event)(enum event_e event, struct misdn_bchannel *bc, void *user_data);
void (*cb_log)(int level, int port, char *tmpl, ...)
__attribute__ ((format (printf, 3, 4)));
int (*cb_jb_empty)(struct misdn_bchannel *bc, char *buffer, int len);
};
/***** USER IFACE **********/
void misdn_lib_nt_keepcalls(int kc);
void misdn_lib_nt_debug_init( int flags, char *file );
int misdn_lib_init(char *portlist, struct misdn_lib_iface* iface, void *user_data);
int misdn_lib_send_event(struct misdn_bchannel *bc, enum event_e event );
void misdn_lib_destroy(void);
void misdn_lib_isdn_l1watcher(int port);
void misdn_lib_log_ies(struct misdn_bchannel *bc);
char *manager_isdn_get_info(enum event_e event);
struct misdn_bchannel* misdn_lib_get_free_bc(int port, int channel, int inout, int dec);
#if defined(AST_MISDN_ENHANCEMENTS)
struct misdn_bchannel *misdn_lib_get_register_bc(int port);
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
void manager_bchannel_activate(struct misdn_bchannel *bc);
void manager_bchannel_deactivate(struct misdn_bchannel * bc);
int misdn_lib_tx2misdn_frm(struct misdn_bchannel *bc, void *data, int len);
void manager_ph_control(struct misdn_bchannel *bc, int c1, int c2);
void isdn_lib_update_rxgain (struct misdn_bchannel *bc);
void isdn_lib_update_txgain (struct misdn_bchannel *bc);
void isdn_lib_update_ec (struct misdn_bchannel *bc);
void isdn_lib_stop_dtmf (struct misdn_bchannel *bc);
int misdn_lib_port_restart(int port);
int misdn_lib_pid_restart(int pid);
int misdn_lib_send_restart(int port, int channel);
int misdn_lib_get_port_info(int port);
int misdn_lib_is_port_blocked(int port);
int misdn_lib_port_block(int port);
int misdn_lib_port_unblock(int port);
int misdn_lib_port_is_pri(int port);
int misdn_lib_port_is_nt(int port);
int misdn_lib_port_up(int port, int notcheck);
int misdn_lib_get_port_down(int port);
int misdn_lib_get_port_up (int port) ;
int misdn_lib_maxports_get(void) ;
struct misdn_bchannel *misdn_lib_find_held_bc(int port, int l3_id);
void misdn_lib_release(struct misdn_bchannel *bc);
int misdn_cap_is_speech(int cap);
int misdn_inband_avail(struct misdn_bchannel *bc);
void manager_ec_enable(struct misdn_bchannel *bc);
void manager_ec_disable(struct misdn_bchannel *bc);
void misdn_lib_send_tone(struct misdn_bchannel *bc, enum tone_e tone);
void get_show_stack_details(int port, char *buf);
void misdn_lib_tone_generator_start(struct misdn_bchannel *bc);
void misdn_lib_tone_generator_stop(struct misdn_bchannel *bc);
void misdn_lib_setup_bc(struct misdn_bchannel *bc);
void misdn_lib_bridge( struct misdn_bchannel * bc1, struct misdn_bchannel *bc2);
void misdn_lib_split_bridge( struct misdn_bchannel * bc1, struct misdn_bchannel *bc2);
void misdn_lib_echo(struct misdn_bchannel *bc, int onoff);
int misdn_lib_is_ptp(int port);
int misdn_lib_get_maxchans(int port);
void misdn_lib_reinit_nt_stack(int port);
#define PRI_TRANS_CAP_SPEECH 0x0
#define PRI_TRANS_CAP_DIGITAL 0x08
#define PRI_TRANS_CAP_RESTRICTED_DIGITAL 0x09
#define PRI_TRANS_CAP_3_1K_AUDIO 0x10
#define PRI_TRANS_CAP_7K_AUDIO 0x11
char *bc_state2str(enum bchannel_state state);
void bc_state_change(struct misdn_bchannel *bc, enum bchannel_state state);
void misdn_dump_chanlist(void);
void misdn_make_dummy(struct misdn_bchannel *dummybc, int port, int l3id, int nt, int channel);
#endif /* TE_LIB */
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