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 
30 {
31  /*! \brief TRUE if we are the calling modem */
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 */
62 };
63 
64 #endif
65 /*- End of file ------------------------------------------------------------*/