X-Git-Url: https://git.gag.com/?p=debian%2Fgnuradio;a=blobdiff_plain;f=gr-msdd6000%2Fsrc%2Fmsdd_source_simple.cc;fp=gr-msdd6000%2Fsrc%2Fmsdd_source_simple.cc;h=0ee2505d488f6ddc48e7241385f15a202784200e;hp=0000000000000000000000000000000000000000;hb=fd9980f919b6f05e2fbea404fea322825ce438f0;hpb=2415ccdbf9d97878a0888bbdff30d699ae2326dd

diff --git a/gr-msdd6000/src/msdd_source_simple.cc b/gr-msdd6000/src/msdd_source_simple.cc
new file mode 100644
index 00000000..0ee2505d
--- /dev/null
+++ b/gr-msdd6000/src/msdd_source_simple.cc
@@ -0,0 +1,166 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2008,2009 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.
+ */
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <msdd_source_simple.h>
+#include <gr_io_signature.h>
+#include <string.h>
+#include <cstdio>
+
+
+msdd_source_simple_sptr
+msdd_make_source_simple (const char *src, unsigned short port_src) 
+{
+  return msdd_source_simple_sptr (new msdd_source_simple ( src, port_src)); 
+}
+
+
+msdd_source_simple::msdd_source_simple (const char *src, 
+					unsigned short port_src) 
+  : gr_sync_block("MSDD_SOURCE_SIMPLE",
+		  gr_make_io_signature (0,0,0),
+		  gr_make_io_signature (1, 1, sizeof (short))),
+    rcv(new MSDD6000((char*) src)), d_lastseq(0), d_firstrun(true)
+{
+  set_output_multiple(MSDD_COMPLEX_SAMPLES_PER_PACKET*2);
+}
+
+msdd_source_simple::~msdd_source_simple ()
+{
+}
+
+
+int
+msdd_source_simple::work (int noutput_items,
+                         gr_vector_const_void_star &input_items,
+                         gr_vector_void_star &output_items)
+{
+	
+#define BUF_LEN        (MSDD_COMPLEX_SAMPLES_PER_PACKET*sizeof(short)*2 + 6)
+
+  signed short* out1 =(signed short*) output_items[0];
+
+  for(int i=0; i<floor(noutput_items*1.0/(2*MSDD_COMPLEX_SAMPLES_PER_PACKET));i++){
+    char buffer[BUF_LEN];
+    rcv->read( &buffer[0], BUF_LEN );
+
+    int seq = *((int*) &buffer[2]);
+
+    if(d_lastseq == -MSDD_COMPLEX_SAMPLES_PER_PACKET){
+      // not started case
+      if(seq == 0){
+	d_lastseq = 0;
+      } else {
+	// THROW AWAY SAMPLES WE ARE NOT STARTED YET!
+	return 0;
+      }
+
+    } else {
+      // started case
+      int samples_missed = seq - d_lastseq - MSDD_COMPLEX_SAMPLES_PER_PACKET;
+      if(samples_missed > 0){
+	if(d_firstrun == true){
+	  // we may have missed some initial samples off the beginning of
+	  // a stream but there are no drop outs in the middle of what we have
+	} else {
+	  printf("dropped %d samples.\n", samples_missed);
+	}
+      }
+      d_lastseq = seq;
+    }
+
+    int out_idx = i*MSDD_COMPLEX_SAMPLES_PER_PACKET*2;
+    memcpy(&out1[out_idx], &buffer[6], BUF_LEN - 6);
+    d_firstrun = false;
+  }
+
+  return noutput_items;
+
+}
+
+bool msdd_source_simple::set_decim_rate(unsigned int rate)
+{
+  rcv->set_decim((int) floor(log2(rate)));
+  return true;
+}
+
+
+bool msdd_source_simple::set_rx_freq(int channel, double freq)
+{
+  long new_fc = (long)freq;
+  rcv->set_fc( new_fc/1000000, new_fc%1000000);
+  return true;
+}
+
+
+bool msdd_source_simple::set_pga(int which, double gain)
+{
+  if(gain < 0 || gain > 10){
+    printf("GAIN IS OUTSIDE ACCEPTABLE RANGE!\n");
+    return false;
+  }
+  // ok i lied this is not really a pga, its decimation gain
+  rcv->set_ddc_gain((int)gain);
+  return true;
+}
+
+
+bool msdd_source_simple::start()
+{
+  rcv->start();
+  return true;
+}
+
+
+bool msdd_source_simple::stop()
+{
+  rcv->stop();
+  return true;
+}
+
+long msdd_source_simple::adc_freq()
+{
+  return 102400000;
+}
+
+int msdd_source_simple::decim_rate()
+{
+  return 1 << rcv->d_decim;
+}
+
+
+std::vector<int> msdd_source_simple::gain_range()
+{
+  static std::vector<int> r;
+  r.push_back(0);
+  r.push_back(12);
+  return r;
+}
+
+std::vector<float> msdd_source_simple::freq_range()
+{
+  std::vector<float> r;
+  r.push_back(30.0*1000*1000);
+  r.push_back(6.0*1000*1000*1000);
+  return r;
+}