Mercurial > hg > audiostuff
comparison spandsp-0.0.6pre17/src/spandsp/private/v8.h @ 4:26cd8f1ef0b1
import spandsp-0.0.6pre17
| author | Peter Meerwald <pmeerw@cosy.sbg.ac.at> |
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| date | Fri, 25 Jun 2010 15:50:58 +0200 |
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| 3:c6c5a16ce2f2 | 4:26cd8f1ef0b1 |
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| 1 /* | |
| 2 * SpanDSP - a series of DSP components for telephony | |
| 3 * | |
| 4 * private/v8.h - V.8 modem negotiation processing. | |
| 5 * | |
| 6 * Written by Steve Underwood <steveu@coppice.org> | |
| 7 * | |
| 8 * Copyright (C) 2004 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 * $Id: v8.h,v 1.3.4.1 2009/12/28 12:20:47 steveu Exp $ | |
| 26 */ | |
| 27 | |
| 28 #if !defined(_SPANDSP_PRIVATE_V8_H_) | |
| 29 #define _SPANDSP_PRIVATE_V8_H_ | |
| 30 | |
| 31 struct v8_state_s | |
| 32 { | |
| 33 /*! \brief TRUE if we are the calling modem */ | |
| 34 int calling_party; | |
| 35 | |
| 36 v8_result_handler_t *result_handler; | |
| 37 void *result_handler_user_data; | |
| 38 | |
| 39 /*! \brief The current state of the V.8 protocol */ | |
| 40 int state; | |
| 41 int fsk_tx_on; | |
| 42 int modem_connect_tone_tx_on; | |
| 43 int negotiation_timer; | |
| 44 int ci_timer; | |
| 45 int ci_count; | |
| 46 fsk_tx_state_t v21tx; | |
| 47 fsk_rx_state_t v21rx; | |
| 48 queue_state_t *tx_queue; | |
| 49 modem_connect_tones_tx_state_t ansam_tx; | |
| 50 modem_connect_tones_rx_state_t ansam_rx; | |
| 51 | |
| 52 /*! \brief Modulation schemes available at this end. */ | |
| 53 unsigned int far_end_modulations; | |
| 54 | |
| 55 v8_parms_t parms; | |
| 56 v8_parms_t result; | |
| 57 | |
| 58 /* V.8 data parsing */ | |
| 59 uint32_t bit_stream; | |
| 60 int bit_cnt; | |
| 61 /* Indicates the type of message coming up */ | |
| 62 int preamble_type; | |
| 63 uint8_t rx_data[64]; | |
| 64 int rx_data_ptr; | |
| 65 | |
| 66 /*! \brief a reference copy of the last CM or JM message, used when | |
| 67 testing for matches. */ | |
| 68 uint8_t cm_jm_data[64]; | |
| 69 int cm_jm_len; | |
| 70 int got_cm_jm; | |
| 71 int got_cj; | |
| 72 int zero_byte_count; | |
| 73 /*! \brief Error and flow logging control */ | |
| 74 logging_state_t logging; | |
| 75 }; | |
| 76 | |
| 77 #endif | |
| 78 /*- End of file ------------------------------------------------------------*/ |