diff options
| -rwxr-xr-x | channels/Makefile | 4 | ||||
| -rwxr-xr-x | configs/modem.conf.sample | 42 | ||||
| -rwxr-xr-x | include/asterisk/vmodem.h | 108 |
3 files changed, 152 insertions, 2 deletions
diff --git a/channels/Makefile b/channels/Makefile index 7d68f258f..1f0b790d2 100755 --- a/channels/Makefile +++ b/channels/Makefile @@ -3,7 +3,7 @@ # # Makefile for Channel backends (dynamically loaded) # -# Copyright (C) 1999, Adtran Inc. and Linux Support Services, LLC +# Copyright (C) 1999, Mark Spencer # # Mark Spencer <markster@linux-support.net> # @@ -11,7 +11,7 @@ # the GNU General Public License # -CHANNEL_LIBS=chan_vofr.so chan_ixj.so +CHANNEL_LIBS=chan_vofr.so chan_ixj.so chan_modem.so chan_modem_aopen.so CFLAGS+=#-DVOFRDUMPER diff --git a/configs/modem.conf.sample b/configs/modem.conf.sample new file mode 100755 index 000000000..27b3230f4 --- /dev/null +++ b/configs/modem.conf.sample @@ -0,0 +1,42 @@ +; +; Internet Phone Jack +; +; Configuration file +; +[interfaces] +; +; By default, incoming calls should come in on the "remote" context +; +context=remote +; +; Modem Drivers to load +; +driver=aopen +; +; We can optionally override the auto detection. This is necessary +; particularly if asterisk does not know about our kind of modem. +; +;type=autodetect +;type=aopen +; +; We can strip a given number of digits on outgoing dialing, so, for example +; you can have it dial "8871042" when given "98871042". +; +stripmsd=1 +; +; Type of dialing +; +;dialtype=tone +dialtype=pulse +; +; Mode selection. "Immediate" means that as soon as you dial, you're connected +; and the line is considered up. "Ring" means we wait until the ring cadence +; occurs at least once. "Answer" means we wait until the other end picks up. +; +;mode=answer +;mode=ring +mode=immediate +; +; List all devices we can use. +; +device=/dev/ttyS3 diff --git a/include/asterisk/vmodem.h b/include/asterisk/vmodem.h new file mode 100755 index 000000000..a45fbdf71 --- /dev/null +++ b/include/asterisk/vmodem.h @@ -0,0 +1,108 @@ +/* + * Asterisk -- A telephony toolkit for Linux. + * + * Voice Modem Definitions + * + * Copyright (C) 1999, Mark Spencer + * + * Mark Spencer <markster@linux-support.net> + * + * This program is free software, distributed under the terms of + * the GNU General Public License + */ + +#ifndef _ASTERISK_VMODEM_H +#define _ASTERISK_VMODEM_H + +#include <asterisk/frame.h> +#include <asterisk/channel.h> + +#define CHAR_DLE 0x10 +#define CHAR_ETX 0x03 + +#define MODEM_DEV_TELCO 0 +#define MODEM_DEV_TELCO_SPK 4 +#define MODEM_DEV_SPKRPHONE 6 +#define MODEM_DEV_HANDSET 9 + +/* Thirty millisecond sections */ +#define MODEM_MAX_LEN 30 +#define MODEM_MAX_BUF MODEM_MAX_LEN * 16 + +#define AST_MAX_INIT_STR 256 + +struct ast_modem_pvt; + +struct ast_modem_driver { + char *name; + char **idents; + int formats; + int fullduplex; + void (*incusecnt)(); + void (*decusecnt)(); + char * (*identify)(struct ast_modem_pvt *); + int (*init)(struct ast_modem_pvt *); + int (*setdev)(struct ast_modem_pvt *, int dev); + struct ast_frame * (*read)(struct ast_modem_pvt *); + int (*write)(struct ast_modem_pvt *, struct ast_frame *fr); + int (*dial)(struct ast_modem_pvt *, char *); + int (*answer)(struct ast_modem_pvt *); + int (*hangup)(struct ast_modem_pvt *); + int (*startrec)(struct ast_modem_pvt *); + int (*stoprec)(struct ast_modem_pvt *); + int (*startpb)(struct ast_modem_pvt *); + int (*stoppb)(struct ast_modem_pvt *); + int (*setsilence)(struct ast_modem_pvt *, int onoff); + int (*dialdigit)(struct ast_modem_pvt *, char digit); + struct ast_modem_driver *next; +}; + +#define MODEM_MODE_IMMEDIATE 0 +#define MODEM_MODE_WAIT_RING 1 +#define MODEM_MODE_WAIT_ANSWER 2 + +struct ast_modem_pvt { + int fd; /* Raw file descriptor for this device */ + FILE *f; /* FILE * representation of device */ + struct ast_channel *owner; /* Channel we belong to, possibly NULL */ + char dev[256]; /* Device name */ + struct ast_frame fr; /* Frame */ + char offset[AST_FRIENDLY_OFFSET]; + char obuf[MODEM_MAX_BUF]; /* Outgoing buffer */ + int tail; + char dialtype; /* Pulse or tone dialling */ + char dialtimeout; /* Time to wait for dial timeout */ + int obuflen; + int mode; /* Immediate, or wait for an answer */ + int ministate; /* State of modem in miniature */ + int stripmsd; /* Digits to strip on outgoing numbers */ + char context[AST_MAX_EXTENSION]; + char cid[AST_MAX_EXTENSION]; /* Caller ID if available */ + char initstr[AST_MAX_INIT_STR]; /* Modem initialization String */ + char response[256]; /* Static response buffer */ + struct ast_modem_driver *mc; /* Modem Capability */ + struct ast_modem_pvt *next; /* Next channel in list */ +}; + +/* Register a driver */ +extern int ast_register_modem_driver(struct ast_modem_driver *mc); + +/* Unregister a driver */ +extern int ast_unregister_modem_driver(struct ast_modem_driver *mc); + +/* Send the command cmd (length len, or 0 if pure ascii) on modem */ +extern int ast_modem_send(struct ast_modem_pvt *p, char *cmd, int len); + +/* Wait for result to occur. Return non-zero if times out or error, last + response is stored in p->response */ +extern int ast_modem_expect(struct ast_modem_pvt *p, char *result, int timeout); + +/* Wait for result to occur. response is stored in p->response */ +extern int ast_modem_read_response(struct ast_modem_pvt *p, int timeout); + +/* Used by modem drivers to start up the PBX on a RING */ +extern struct ast_channel *ast_modem_new(struct ast_modem_pvt *i, int state); + +/* Trim off trailing mess */ +extern void ast_modem_trim(char *s); +#endif |