spandsp: v18.h Source File

spandsp 0.0.6

private/v18.h
1/*
2 * SpanDSP - a series of DSP components for telephony
3 *
4 * private/v18.h - V.18 text telephony for the deaf.
5 *
6 * Written by Steve Underwood <steveu@coppice.org>
7 *
8 * Copyright (C) 2004-2009 Steve Underwood
9 *
10 * All rights reserved.
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU Lesser General Public License version 2.1,
14 * as published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 */
25
26#if !defined(_SPANDSP_PRIVATE_V18_H_)
27#define _SPANDSP_PRIVATE_V18_H_
28
29 struct v18_state_s
30{
31 /*! \brief TRUE if we are the calling modem */
32 int calling_party;
33 int mode;
34 put_msg_func_t put_msg;
35 void *user_data;
36
37 union
38 {
39 queue_state_t queue;
40 uint8_t buf[QUEUE_STATE_T_SIZE(128)];
41 } queue;
42 tone_gen_descriptor_t alert_tone_desc;
43 tone_gen_state_t alert_tone_gen;
44 fsk_tx_state_t fsktx;
45 dtmf_tx_state_t dtmftx;
46 async_tx_state_t asynctx;
47 int baudot_tx_shift;
48 int tx_signal_on;
49 int byte_no;
50
51 fsk_rx_state_t fskrx;
52 dtmf_rx_state_t dtmfrx;
53 int baudot_rx_shift;
54 int consecutive_ones;
55 uint8_t rx_msg[256 + 1];
56 int rx_msg_len;
57 int bit_pos;
58 int in_progress;
59
60 /*! \brief Error and flow logging control */
61 logging_state_t logging;
62};
63
64#endif
65/*- End of file ------------------------------------------------------------*/
put_msg_func_t
void(* put_msg_func_t)(void *user_data, const uint8_t *msg, int len)
Definition async.h:93
async_tx_state_s
Definition private/async.h:35
dtmf_rx_state_s
Definition private/dtmf.h:51
dtmf_tx_state_s
Definition private/dtmf.h:34
fsk_rx_state_s
Definition private/fsk.h:59
fsk_tx_state_s
Definition private/fsk.h:34
logging_state_s
Definition private/logging.h:34
queue_state_s
Definition private/queue.h:34
tone_gen_descriptor_s
Definition private/tone_generate.h:43
tone_gen_state_s
Definition private/tone_generate.h:54
v18_state_s
Definition private/v18.h:30
v18_state_s::logging
logging_state_t logging
Error and flow logging control.
Definition private/v18.h:61
v18_state_s::calling_party
int calling_party
TRUE if we are the calling modem.
Definition private/v18.h:32