--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spandsp-0.0.6pre17/src/spandsp/private/v42.h	Fri Jun 25 15:50:58 2010 +0200
@@ -0,0 +1,119 @@
+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * private/v42.h
+ *
+ * Written by Steve Underwood <steveu@coppice.org>
+ *
+ * Copyright (C) 2003 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: v42.h,v 1.2 2009/11/04 15:52:06 steveu Exp $
+ */
+
+#if !defined(_SPANDSP_PRIVATE_V42_H_)
+#define _SPANDSP_PRIVATE_V42_H_
+
+/*!
+    LAP-M descriptor. This defines the working state for a single instance of LAP-M.
+*/
+struct lapm_state_s
+{
+    int handle;
+    hdlc_rx_state_t hdlc_rx;
+    hdlc_tx_state_t hdlc_tx;
+    
+    v42_frame_handler_t iframe_receive;
+    void *iframe_receive_user_data;
+
+    v42_status_func_t status_callback;
+    void *status_callback_user_data;
+
+    int state;
+    int tx_waiting;
+    int debug;
+    /*! TRUE if originator. FALSE if answerer */
+    int we_are_originator;
+    /*! Remote network type (unknown, answerer. originator) */
+    int peer_is_originator;
+    /*! Next N(S) for transmission */
+    int next_tx_frame;
+    /*! The last of our frames which the peer acknowledged */
+    int last_frame_peer_acknowledged;
+    /*! Next N(R) for reception */
+    int next_expected_frame;
+    /*! The last of the peer's frames which we acknowledged */
+    int last_frame_we_acknowledged;
+    /*! TRUE if we sent an I or S frame with the F-bit set */
+    int solicit_f_bit;
+    /*! Retransmission count */
+    int retransmissions;
+    /*! TRUE if peer is busy */
+    int busy;
+
+    /*! Acknowledgement timer */
+    int t401_timer;
+    /*! Reply delay timer - optional */
+    int t402_timer;
+    /*! Inactivity timer - optional */
+    int t403_timer;
+    /*! Maximum number of octets in an information field */
+    int n401;
+    /*! Window size */
+    int window_size_k;
+	
+    lapm_frame_queue_t *txqueue;
+    lapm_frame_queue_t *tx_next;
+    lapm_frame_queue_t *tx_last;
+    queue_state_t *tx_queue;
+    
+    span_sched_state_t sched;
+    /*! \brief Error and flow logging control */
+    logging_state_t logging;
+};
+
+/*!
+    V.42 descriptor. This defines the working state for a single instance of V.42.
+*/
+struct v42_state_s
+{
+    /*! TRUE if we are the calling party, otherwise FALSE */
+    int calling_party;
+    /*! TRUE if we should detect whether the far end is V.42 capable. FALSE if we go
+        directly to protocol establishment */
+    int detect;
+
+    /*! Stage in negotiating V.42 support */
+    int rx_negotiation_step;
+    int rxbits;
+    int rxstream;
+    int rxoks;
+    int odp_seen;
+    int txbits;
+    int txstream;
+    int txadps;
+    /*! The LAP.M context */
+    lapm_state_t lapm;
+
+    /*! V.42 support detection timer */
+    int t400_timer;
+    /*! \brief Error and flow logging control */
+    logging_state_t logging;
+};
+
+#endif
+/*- End of file ------------------------------------------------------------*/