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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@228 65c4cc65-6c06-0410-ace0-fbb531ad65f3
114 lines
3.7 KiB
C
Executable File
114 lines
3.7 KiB
C
Executable File
/*
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* Asterisk -- A telephony toolkit for Linux.
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*
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* Voice Modem Definitions
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*
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* Copyright (C) 1999, Mark Spencer
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*
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* Mark Spencer <markster@linux-support.net>
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License
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*/
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#ifndef _ASTERISK_VMODEM_H
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#define _ASTERISK_VMODEM_H
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#include <asterisk/frame.h>
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#include <asterisk/channel.h>
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#define CHAR_DLE 0x10
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#define CHAR_ETX 0x03
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#define CHAR_DC4 0x14
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#define MODEM_DEV_TELCO 0
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#define MODEM_DEV_TELCO_SPK 4
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#define MODEM_DEV_SPKRPHONE 6
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#define MODEM_DEV_HANDSET 9
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/* Thirty millisecond sections */
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#define MODEM_MAX_LEN 30
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#define MODEM_MAX_BUF MODEM_MAX_LEN * 16
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#define AST_MAX_INIT_STR 256
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struct ast_modem_pvt;
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struct ast_modem_driver {
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char *name;
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char **idents;
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int formats;
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int fullduplex;
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void (*incusecnt)();
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void (*decusecnt)();
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char * (*identify)(struct ast_modem_pvt *);
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int (*init)(struct ast_modem_pvt *);
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int (*setdev)(struct ast_modem_pvt *, int dev);
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struct ast_frame * (*read)(struct ast_modem_pvt *);
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int (*write)(struct ast_modem_pvt *, struct ast_frame *fr);
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int (*dial)(struct ast_modem_pvt *, char *);
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int (*answer)(struct ast_modem_pvt *);
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int (*hangup)(struct ast_modem_pvt *);
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int (*startrec)(struct ast_modem_pvt *);
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int (*stoprec)(struct ast_modem_pvt *);
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int (*startpb)(struct ast_modem_pvt *);
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int (*stoppb)(struct ast_modem_pvt *);
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int (*setsilence)(struct ast_modem_pvt *, int onoff);
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int (*dialdigit)(struct ast_modem_pvt *, char digit);
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struct ast_modem_driver *next;
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};
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#define MODEM_MODE_IMMEDIATE 0
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#define MODEM_MODE_WAIT_RING 1
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#define MODEM_MODE_WAIT_ANSWER 2
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struct ast_modem_pvt {
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int fd; /* Raw file descriptor for this device */
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FILE *f; /* FILE * representation of device */
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struct ast_channel *owner; /* Channel we belong to, possibly NULL */
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char dev[256]; /* Device name */
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struct ast_frame fr; /* Frame */
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char offset[AST_FRIENDLY_OFFSET];
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char obuf[MODEM_MAX_BUF]; /* Outgoing buffer */
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int tail;
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char dialtype; /* Pulse or tone dialling */
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char dialtimeout; /* Time to wait for dial timeout */
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int obuflen;
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int mode; /* Immediate, or wait for an answer */
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int ministate; /* State of modem in miniature */
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int stripmsd; /* Digits to strip on outgoing numbers */
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int escape; /* Is the last thing we saw an escape */
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char context[AST_MAX_EXTENSION];
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char msn[AST_MAX_EXTENSION]; /* Multiple Subscriber Number */
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char cid[AST_MAX_EXTENSION]; /* Caller ID if available */
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char dnid[AST_MAX_EXTENSION]; /* Dialed Number if available */
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char initstr[AST_MAX_INIT_STR]; /* Modem initialization String */
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char language[MAX_LANGUAGE]; /* default language */
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char response[256]; /* Static response buffer */
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struct ast_modem_driver *mc; /* Modem Capability */
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struct ast_modem_pvt *next; /* Next channel in list */
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};
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/* Register a driver */
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extern int ast_register_modem_driver(struct ast_modem_driver *mc);
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/* Unregister a driver */
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extern int ast_unregister_modem_driver(struct ast_modem_driver *mc);
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/* Send the command cmd (length len, or 0 if pure ascii) on modem */
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extern int ast_modem_send(struct ast_modem_pvt *p, char *cmd, int len);
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/* Wait for result to occur. Return non-zero if times out or error, last
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response is stored in p->response */
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extern int ast_modem_expect(struct ast_modem_pvt *p, char *result, int timeout);
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/* Wait for result to occur. response is stored in p->response */
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extern int ast_modem_read_response(struct ast_modem_pvt *p, int timeout);
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/* Used by modem drivers to start up the PBX on a RING */
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extern struct ast_channel *ast_modem_new(struct ast_modem_pvt *i, int state);
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/* Trim off trailing mess */
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extern void ast_modem_trim(char *s);
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#endif
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