Added start of TDMA work

git-svn-id: https://svn.code.sf.net/p/freetel/code@2924 01035d8c-6547-0410-b346-abe4f91aad63

diff --git a/codec2-dev/src/tdma.h b/codec2-dev/src/tdma.h
new file mode 100644 (file)
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+++ b/codec2-dev/src/tdma.h
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+/*---------------------------------------------------------------------------*\
+
+  FILE........: tdma.h
+  AUTHOR......: Brady O'Brien
+  DATE CREATED: 18 September 2016
+
+  Skeletion of the API for the TDMA FSK modem
+
+\*---------------------------------------------------------------------------*/
+
+/*
+  Copyright (C) 2016 Brady O'Brien
+
+  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 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, see <http://www.gnu.org/licenses/>.
+*/
+
+
+#include "fsk.h"
+#include "freedv_vhf_framing.h"
+
+/* The state for an individual slot */
+enum slot_state {
+    rx_no_sync,         /* Not synched */
+    rx_sync,            /* Sunk */
+    tx_client,          /* TX but timed from a different master */
+    tx_master
+};
+
+/* The state of the entire TDMA modem */
+enum tdma_state {
+    no_sync,            /* No sync */
+    pilot_sync,         /* Pilot modem has gotten sync, but slots haven't*/
+    slot_sync,          /* One or more slots are sunk */
+};
+
+/* TDMA slot struct */
+
+struct TDMA_SLOT {
+    struct FSK * fsk;   /* The FSK modem for this slot */
+    enum slot_state state;
+};
+