1 files changed, 299 insertions, 0 deletions
diff --git a/gr-shd/lib/gr_shd_smini_source.cc b/gr-shd/lib/gr_shd_smini_source.cc
new file mode 100644
index 000000000..caf98f311
--- /dev/null
+++ b/gr-shd/lib/gr_shd_smini_source.cc
@@ -0,0 +1,299 @@
+/*
+ * Copyright 2011 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 GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <gr_shd_smini_source.h>
+#include <gr_io_signature.h>
+#include <stdexcept>
+#include <iostream>
+#include <boost/format.hpp>
+
+/*********************************************************************
+ * SHD Multi S-MINI Source Impl
+ ********************************************************************/
+class shd_smini_source_impl : public shd_smini_source
+{
+public:
+  shd_smini_source_impl(
+        const shd::device_addr_t &device_addr,
+        const shd::io_type_t &io_type,
+        size_t num_channels
+  ):
+    gr_sync_block(
+       "gr shd smini source",
+       gr_make_io_signature(0, 0, 0),
+       gr_make_io_signature(num_channels, num_channels, io_type.size)
+    ),
+    _type(io_type),
+    _nchan(num_channels),
+    _stream_now(_nchan == 1),
+    _tmp_buffs(_nchan)
+  {
+    _dev = shd::xmini::multi_xmini::make(device_addr);
+  }
+  
+  void set_subdev_spec(const std::string &spec, size_t mboard)
+  {
+    return _dev->set_rx_subdev_spec(spec, mboard);
+  }
+
+  void set_samp_rate(double rate)
+  {
+    _dev->set_rx_rate(rate);
+  }
+
+  double get_samp_rate(void)
+  {
+    return _dev->get_rx_rate();
+  }
+
+  shd::tune_result_t set_center_freq(
+        const shd::tune_request_t tune_request, size_t chan)
+  {
+    return _dev->set_rx_freq(tune_request, chan);
+  }
+
+  double get_center_freq(size_t chan)
+  {
+    return _dev->get_rx_freq(chan);
+  }
+
+  shd::freq_range_t get_freq_range(size_t chan)
+  {
+    return _dev->get_rx_freq_range(chan);
+  }
+
+  void set_gain(double gain, size_t chan)
+  {
+    return _dev->set_rx_gain(gain, chan);
+  }
+
+  void set_gain(double gain, const std::string &name, 
+		size_t chan)
+  {
+    return _dev->set_rx_gain(gain, name, chan);
+  }
+
+  double get_gain(size_t chan)
+  {
+    return _dev->get_rx_gain(chan);
+  }
+
+  double get_gain(const std::string &name, size_t chan)
+  {
+    return _dev->get_rx_gain(name, chan);
+  }
+  
+  std::vector<std::string> get_gain_names(size_t chan)
+  {
+    return _dev->get_rx_gain_names(chan);
+  }
+
+  shd::gain_range_t get_gain_range(size_t chan)
+  {
+    return _dev->get_rx_gain_range(chan);
+  }
+
+  shd::gain_range_t get_gain_range(const std::string &name, 
+				   size_t chan)
+  {
+    return _dev->get_rx_gain_range(name, chan);
+  }
+
+  void set_antenna(const std::string &ant, size_t chan)
+  {
+    return _dev->set_rx_antenna(ant, chan);
+  }
+
+  std::string get_antenna(size_t chan)
+  {
+    return _dev->get_rx_antenna(chan);
+  }
+
+  std::vector<std::string> get_antennas(size_t chan)
+  {
+    return _dev->get_rx_antennas(chan);
+  }
+
+  void set_bandwidth(double bandwidth, size_t chan)
+  {
+    return _dev->set_rx_bandwidth(bandwidth, chan);
+  }
+  
+  shd::sensor_value_t get_dboard_sensor(const std::string &name, 
+					size_t chan)
+  {
+    return _dev->get_rx_sensor(name, chan);
+  }
+
+  std::vector<std::string> get_dboard_sensor_names(size_t chan)
+  {
+    return _dev->get_rx_sensor_names(chan);
+  }
+  
+  shd::sensor_value_t get_mboard_sensor(const std::string &name,
+					size_t mboard)
+  {
+    return _dev->get_mboard_sensor(name, mboard);
+  }
+  
+  std::vector<std::string> get_mboard_sensor_names(size_t mboard)
+  {
+    return _dev->get_mboard_sensor_names(mboard);
+  }
+  
+  void set_clock_config(const shd::clock_config_t &clock_config,
+			size_t mboard)
+  {
+    return _dev->set_clock_config(clock_config, mboard);
+  }
+
+  double get_clock_rate(size_t mboard)
+  {
+    return _dev->get_master_clock_rate(mboard);
+  }
+
+  void set_clock_rate(double rate, size_t mboard)
+  {
+    return _dev->set_master_clock_rate(rate, mboard);
+  }
+
+  shd::time_spec_t get_time_now(size_t mboard = 0)
+  {
+    return _dev->get_time_now(mboard);
+  }
+
+  shd::time_spec_t get_time_last_pps(size_t mboard)
+  {
+    return _dev->get_time_last_pps(mboard);
+  }
+
+  void set_time_now(const shd::time_spec_t &time_spec,
+		    size_t mboard)
+  {
+    return _dev->set_time_now(time_spec, mboard);
+  }
+
+  void set_time_next_pps(const shd::time_spec_t &time_spec)
+  {
+    return _dev->set_time_next_pps(time_spec);
+  }
+
+  void set_time_unknown_pps(const shd::time_spec_t &time_spec)
+  {
+    return _dev->set_time_unknown_pps(time_spec);
+  }
+
+  shd::xmini::dboard_iface::sptr get_dboard_iface(size_t chan)
+  {
+    return _dev->get_rx_dboard_iface(chan);
+  }
+
+  shd::xmini::multi_xmini::sptr get_device(void)
+  {
+    return _dev;
+  }
+
+  /*******************************************************************
+   * Work
+   ******************************************************************/
+  int work(int noutput_items,
+	   gr_vector_const_void_star &input_items,
+	   gr_vector_void_star &output_items)
+  {
+    //In order to allow for low-latency:
+    //We receive all available packets without timeout.
+    //This call can timeout under regular operation...
+    size_t num_samps = _dev->get_device()->recv(
+	   output_items, noutput_items, _metadata,
+	   _type, shd::device::RECV_MODE_FULL_BUFF, 0.0);
+
+    //If receive resulted in a timeout condition:
+    //We now receive a single packet with a large timeout.
+    if(_metadata.error_code == shd::rx_metadata_t::ERROR_CODE_TIMEOUT) {
+      num_samps = _dev->get_device()->recv(
+		    output_items, noutput_items, _metadata,
+		    _type, shd::device::RECV_MODE_ONE_PACKET, 1.0);
+    }
+    
+    //handle possible errors conditions
+    switch(_metadata.error_code) {
+    case shd::rx_metadata_t::ERROR_CODE_NONE:
+      //TODO insert tag for time stamp
+      break;
+      
+    case shd::rx_metadata_t::ERROR_CODE_TIMEOUT:
+      //Assume that the user called stop() on the flow graph.
+      //However, a timeout can occur under error conditions.
+      return WORK_DONE;
+      
+    case shd::rx_metadata_t::ERROR_CODE_OVERFLOW:
+      //ignore overflows and try work again
+      //TODO insert tag for overflow
+      return work(noutput_items, input_items, output_items);
+      
+    default:
+      std::cout << boost::format("SHD source block got error code 0x%x"
+				 ) % _metadata.error_code << std::endl;
+      return num_samps;
+    }
+
+    return num_samps;
+  }
+  
+  bool start(void)
+  {
+    //setup a stream command that starts streaming slightly in the future
+    static const double reasonable_delay = 0.1; //order of magnitude over RTT
+    shd::stream_cmd_t stream_cmd(shd::stream_cmd_t::STREAM_MODE_START_CONTINUOUS);
+    stream_cmd.stream_now = _stream_now;
+    stream_cmd.time_spec = get_time_now() + shd::time_spec_t(reasonable_delay);
+    _dev->issue_stream_cmd(stream_cmd);
+    return true;
+  }
+  
+  bool stop(void)
+  {
+    _dev->issue_stream_cmd(shd::stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS);
+    return true;
+  }
+
+private:
+  shd::xmini::multi_xmini::sptr _dev;
+  const shd::io_type_t _type;
+  size_t _nchan;
+  bool _stream_now;
+  gr_vector_void_star _tmp_buffs;
+  shd::rx_metadata_t _metadata;
+};
+
+
+/*********************************************************************
+ * Make SHD Multi SMINI Source
+ ********************************************************************/
+
+boost::shared_ptr<shd_smini_source> shd_make_smini_source(
+    const shd::device_addr_t &device_addr,
+    const shd::io_type_t &io_type,
+    size_t num_channels)
+{
+  return boost::shared_ptr<shd_smini_source>(
+        new shd_smini_source_impl(device_addr, io_type, num_channels));
+}