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#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <vector>
#include <msdd_source_simple.h>
#include <gr_io_signature.h>
#include <gr_sync_block.h>
#ifndef FALSE
#define FALSE (0==1)
#define TRUE (0==0)
#endif
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);
}
int
msdd_source_simple::work (int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
#define BUF_LEN (366*sizeof(short)*2 + 6)
float* out1 =(float*) output_items[0];
char buffer[BUF_LEN];
rcv->read( &buffer[0], BUF_LEN );
int seq = *((int*) &buffer[2]);
if(d_lastseq == -366){
// 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 - 366;
if(samples_missed > 0){
printf("dropped %d samples.\n", samples_missed);
}
d_lastseq = seq;
}
if(noutput_items< 366*2){
printf("NOT ENOUGH SPACE IN OUTPUT BUFFER!!! >:-(\n");
}
memcpy(&out1[0], &buffer[6], BUF_LEN - 6);
// for(int i = 0; i < 366*2; i++){
// out1[i] = (float) (*((short*) &buffer[6+2*i]) );
// }
return 366*2;
}
bool msdd_source_simple::set_decim_rate(unsigned int rate)
{
rcv->set_decim(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;
}
msdd_source_simple::~msdd_source_simple ()
{
delete rcv;
}
bool msdd_source_simple::start()
{
rcv->start();
}
bool msdd_source_simple::stop()
{
rcv->stop();
}
int msdd_source_simple::ninput_bytes_reqd_for_noutput_items(int out){
return 0;
}
long msdd_source_simple::adc_freq(){
return 102400000;
}
int msdd_source_simple::decim_rate(){
return pow(2, 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;
}
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