3 * Copyright 2007,2008 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3, or (at your option)
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21 #ifndef INCLUDED_USRP_RX_STUB_H
22 #define INCLUDED_USRP_RX_STUB_H
24 #include <mblock/mblock.h>
26 #include "usrp_standard.h"
30 #include <usrp_inband_usb_packet.h>
32 typedef usrp_inband_usb_packet transport_pkt;
34 extern bool usrp_rx_stop_stub; // used to communicate a 'stop' to the RX stub
35 extern std::queue<pmt_t> d_cs_queue;
37 static pmt_t s_timeout = pmt_intern("%timeout");
38 static pmt_t s_done = pmt_intern("done");
41 * \brief Implements the low level usb interface to the USRP
43 class usrp_rx_stub : public mb_mblock
48 usrp_standard_rx* d_urx;
50 long d_samples_per_frame;
56 // for generating sine wave output
57 ui_nco<float,float> d_nco;
62 std::ofstream d_ofile;
65 usrp_rx_stub(mb_runtime *rt, const std::string &instance_name, pmt_t user_arg);
67 void initial_transition();
68 void handle_message(mb_message_sptr msg);
71 void read_and_respond();
73 void start_packet_timer();
78 #endif /* INCLUDED_USRP_RX_H */