From 4e7d048aeb80f95b19cebed9d76b79e6cbe64a9a Mon Sep 17 00:00:00 2001
From: eb <eb@221aa14e-8319-0410-a670-987f0aec2ac5>
Date: Thu, 13 Sep 2007 23:21:41 +0000
Subject: Merged r6329:6428 of features/inband-usb + distcheck fixes into
trunk.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@6429 221aa14e-8319-0410-a670-987f0aec2ac5
---
usrp/host/apps-inband/gmac.h | 91 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 91 insertions(+)
create mode 100644 usrp/host/apps-inband/gmac.h
(limited to 'usrp/host/apps-inband/gmac.h')
diff --git a/usrp/host/apps-inband/gmac.h b/usrp/host/apps-inband/gmac.h
new file mode 100644
index 0000000000..a6d0bcb128
--- /dev/null
+++ b/usrp/host/apps-inband/gmac.h
@@ -0,0 +1,91 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2007 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio 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 General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef INCLUDED_GMAC_H
+#define INCLUDED_GMAC_H
+
+#include <mb_mblock.h>
+
+class gmac;
+
+class gmac : public mb_mblock
+{
+
+ // The state is used to determine how to handle incoming messages and of
+ // course, the state of the MAC protocol.
+ enum state_t {
+ INIT,
+ OPENING_USRP,
+ ALLOCATING_CHANNELS,
+ INIT_GMAC,
+ IDLE,
+ CLOSING_CHANNELS,
+ CLOSING_USRP,
+ };
+ state_t d_state;
+
+ // Ports used for applications to connect to this block
+ mb_port_sptr d_tx, d_rx, d_cs;
+
+ // Ports to connect to usrp_server (us)
+ mb_port_sptr d_us_tx, d_us_rx, d_us_cs;
+
+ // The channel numbers assigned for use
+ pmt_t d_us_rx_chan, d_us_tx_chan;
+
+ pmt_t d_which_usrp;
+
+ bool d_carrier_sense;
+ long d_cs_thresh;
+ long d_cs_deadline;
+
+ enum FPGA_REGISTERS {
+ REG_CS_THRESH = 1,
+ REG_CS_DEADLINE = 2
+ };
+
+ public:
+ gmac(mb_runtime *rt, const std::string &instance_name, pmt_t user_arg);
+ ~gmac();
+ void handle_message(mb_message_sptr msg);
+
+ private:
+ void define_ports();
+ void initialize_usrp();
+ void initialize_gmac();
+ void set_carrier_sense(bool toggle, long threshold, long deadline, pmt_t invocation);
+ void allocate_channels();
+ void enter_receiving();
+ void enter_idle();
+ void close_channels();
+ void open_usrp();
+ void close_usrp();
+ void handle_cmd_tx_pkt(pmt_t data);
+ void handle_response_xmit_raw_frame(pmt_t data);
+ bool carrier_sense_pkt(pmt_t pkt_properties);
+ void handle_cmd_carrier_sense_enable(pmt_t data);
+ void handle_cmd_carrier_sense_threshold(pmt_t data);
+ void handle_cmd_carrier_sense_disable(pmt_t data);
+ void handle_cmd_carrier_sense_deadline(pmt_t data);
+
+};
+
+#endif // INCLUDED_GMAC_H
--
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