Mercurial > hg > audiostuff
diff 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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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/spandsp-0.0.6pre17/src/spandsp/private/v8.h Fri Jun 25 15:50:58 2010 +0200 @@ -0,0 +1,78 @@ +/* + * SpanDSP - a series of DSP components for telephony + * + * private/v8.h - V.8 modem negotiation processing. + * + * Written by Steve Underwood <steveu@coppice.org> + * + * Copyright (C) 2004 Steve Underwood + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 2.1, + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * $Id: v8.h,v 1.3.4.1 2009/12/28 12:20:47 steveu Exp $ + */ + +#if !defined(_SPANDSP_PRIVATE_V8_H_) +#define _SPANDSP_PRIVATE_V8_H_ + +struct v8_state_s +{ + /*! \brief TRUE if we are the calling modem */ + int calling_party; + + v8_result_handler_t *result_handler; + void *result_handler_user_data; + + /*! \brief The current state of the V.8 protocol */ + int state; + int fsk_tx_on; + int modem_connect_tone_tx_on; + int negotiation_timer; + int ci_timer; + int ci_count; + fsk_tx_state_t v21tx; + fsk_rx_state_t v21rx; + queue_state_t *tx_queue; + modem_connect_tones_tx_state_t ansam_tx; + modem_connect_tones_rx_state_t ansam_rx; + + /*! \brief Modulation schemes available at this end. */ + unsigned int far_end_modulations; + + v8_parms_t parms; + v8_parms_t result; + + /* V.8 data parsing */ + uint32_t bit_stream; + int bit_cnt; + /* Indicates the type of message coming up */ + int preamble_type; + uint8_t rx_data[64]; + int rx_data_ptr; + + /*! \brief a reference copy of the last CM or JM message, used when + testing for matches. */ + uint8_t cm_jm_data[64]; + int cm_jm_len; + int got_cm_jm; + int got_cj; + int zero_byte_count; + /*! \brief Error and flow logging control */ + logging_state_t logging; +}; + +#endif +/*- End of file ------------------------------------------------------------*/