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/* -*- c++ -*- */
/*
* Copyright 2008,2010 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_rs_source_simple.h>
#include <gr_io_signature.h>
#include <string.h>
#include <cstdio>
msdd_rs_source_simple_sptr
msdd_rs_make_source_simple ( const char *src, unsigned short port_src)
{
return gnuradio::get_initial_sptr(new msdd_rs_source_simple ( src, port_src));
}
msdd_rs_source_simple::msdd_rs_source_simple (
const char *src,
unsigned short port_src)
: gr_sync_block("MSDD_RS_SOURCE_SIMPLE",
gr_make_io_signature (0,0,0),
gr_make_io_signature (1, 1, sizeof (short))),
rcv(new MSDD6000_RS((char*) src)), d_lastseq(0)
{
}
msdd_rs_source_simple::~msdd_rs_source_simple ()
{
}
int
msdd_rs_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];
/* Read a buffer out -- looking at UDP payload at this point.*/
rcv->read( &buffer[0], BUF_LEN );
int seq = *((int*) &buffer[2]);
char type = buffer[0];
//printf("Sequence %d\n",seq);
// FIXME get rid of these magic 366's!
if(d_lastseq == -366)
{
if (type != 0){
/* Received control packet -- parse and update locally stored parameters */
printf("Parsing control Packet\n");
rcv->parse_control(&buffer[0], seq);
}
else{
// not started case
if(seq == 0){
d_lastseq = 0;
}
else
{
// THROW AWAY SAMPLES WE ARE NOT STARTED YET!
return 0;
}
}
}
// Started case
else
{
if (type != 0){
/* Received control packet -- parse and update locally stored parameters */
printf("Parsing control Packet\n");
rcv->parse_control(&buffer[0], seq);
}
else {
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_rs_source_simple::set_decim_rate(unsigned int rate)
//{
// // FIXME seems buggy. How about a floor or ceil?
// rcv->set_decim((int) log2(rate));
// return true;
//}
bool msdd_rs_source_simple::set_rx_freq(double freq)
{
long new_fc = (long)freq;
rcv->set_fc( new_fc/1000000, new_fc%1000000);
return true;
}
bool msdd_rs_source_simple::set_ddc_gain(double gain)
{
if(gain < 0 || gain > 7){ // only 3 bits available.
printf("GAIN IS OUTSIDE ACCEPTABLE RANGE!\n");
return false;
}
//decimation gain
rcv->set_ddc_gain((int)gain);
return true;
}
// Set desired sample rate of MSDD6000 -- Note bounds checking is
// done by the module and it will return the value actually used in the hardware.
bool msdd_rs_source_simple::set_ddc_samp_rate(double rate)
{
rcv->set_ddc_samp_rate((float) rate);
return true;
}
// Set desired input BW of MSDD6000 -- Note bounds checking is
// done by the module and it will return the value actually used in the hardware.
bool msdd_rs_source_simple::set_ddc_bw(double bw)
{
rcv->set_ddc_bw((float) bw);
return true;
}
bool msdd_rs_source_simple::set_rf_atten(double rf_atten)
{
rcv->set_rf_attn((int) rf_atten);
return true;
}
bool msdd_rs_source_simple::start()
{
rcv->start();
rcv->stop_data();
return true;
}
bool msdd_rs_source_simple::stop()
{
rcv->stop();
return true;
}
int msdd_rs_source_simple::start_data()
{
return rcv->start_data();
}
int msdd_rs_source_simple::stop_data()
{
return rcv->stop_data();
}
/* Query functions */
long msdd_rs_source_simple::pull_adc_freq(){
return 102400000;
}
/* Request the current ddc sample rate */
float msdd_rs_source_simple::pull_ddc_samp_rate(){
return(rcv->pull_ddc_samp_rate());
}
/* Request the current ddc bandwidth */
float msdd_rs_source_simple::pull_ddc_bw(){
return(rcv->pull_ddc_bw());
}
/* Request the current rx freq */
float msdd_rs_source_simple::pull_rx_freq(){
return(rcv->pull_rx_freq());
}
/* Request current ddc gain */
int msdd_rs_source_simple::pull_ddc_gain(){
return(rcv->pull_ddc_gain());
}
/* Request current RF attenuation */
int msdd_rs_source_simple::pull_rf_atten(){
return(rcv->pull_rf_atten());
}
std::vector<int> msdd_rs_source_simple::gain_range(){
static std::vector<int> r;
r.push_back(0);
r.push_back(12);
return r;
}
std::vector<float> msdd_rs_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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