3 * Copyright 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.
25 #include <msdd_source_simple.h>
26 #include <gr_io_signature.h>
29 msdd_source_simple_sptr
30 msdd_make_source_simple ( const char *src, unsigned short port_src)
32 return msdd_source_simple_sptr (new msdd_source_simple ( src, port_src));
36 msdd_source_simple::msdd_source_simple (
38 unsigned short port_src)
39 : gr_sync_block("MSDD_SOURCE_SIMPLE",
40 gr_make_io_signature (0,0,0),
41 gr_make_io_signature (1, 1, sizeof (short))),
42 rcv(new MSDD6000((char*) src)), d_lastseq(0)
46 msdd_source_simple::~msdd_source_simple ()
52 msdd_source_simple::work (int noutput_items,
53 gr_vector_const_void_star &input_items,
54 gr_vector_void_star &output_items)
57 #define BUF_LEN (366*sizeof(short)*2 + 6)
59 float* out1 =(float*) output_items[0];
62 rcv->read( &buffer[0], BUF_LEN );
64 int seq = *((int*) &buffer[2]);
66 // FIXME get rid of these magic 366's!
67 if(d_lastseq == -366){
72 // THROW AWAY SAMPLES WE ARE NOT STARTED YET!
78 int samples_missed = seq - d_lastseq - 366;
79 if(samples_missed > 0){
80 printf("dropped %d samples.\n", samples_missed);
85 if(noutput_items< 366*2){
86 printf("NOT ENOUGH SPACE IN OUTPUT BUFFER!!! >:-(\n");
89 memcpy(&out1[0], &buffer[6], BUF_LEN - 6);
91 // for(int i = 0; i < 366*2; i++){
92 // out1[i] = (float) (*((short*) &buffer[6+2*i]) );
98 bool msdd_source_simple::set_decim_rate(unsigned int rate)
100 // FIXME seems buggy. How about a floor or ceil?
101 rcv->set_decim((int) log2(rate));
106 bool msdd_source_simple::set_rx_freq(int channel, double freq)
108 long new_fc = (long)freq;
109 rcv->set_fc( new_fc/1000000, new_fc%1000000);
114 bool msdd_source_simple::set_pga(int which, double gain)
116 if(gain < 0 || gain > 10){
117 printf("GAIN IS OUTSIDE ACCEPTABLE RANGE!\n");
120 // ok i lied this is not really a pga, its decimation gain
121 rcv->set_ddc_gain((int)gain);
126 bool msdd_source_simple::start()
133 bool msdd_source_simple::stop()
139 long msdd_source_simple::adc_freq(){
143 int msdd_source_simple::decim_rate(){
144 return 1 << rcv->d_decim;
148 std::vector<int> msdd_source_simple::gain_range(){
149 static std::vector<int> r;
155 std::vector<float> msdd_source_simple::freq_range(){
156 std::vector<float> r;
157 r.push_back(30.0*1000*1000);
158 r.push_back(6.0*1000*1000*1000);