3 * Copyright 2008,2009 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
18 * along with GNU Radio; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street,
20 * Boston, MA 02110-1301, USA.
27 #include <vrt_source_32fc.h>
28 #include <vrt/expanded_header.h>
29 #include <vrt/copiers.h>
30 #include <vrt/types.h>
31 #include <vrt/if_context.h>
32 #include <gr_io_signature.h>
33 #include <missing_pkt_checker.h>
35 #include <gruel/inet.h>
39 #define VERBOSE 1 // define to 0 or 1
42 class rx_32fc_handler : public vrt::rx_packet_handler
45 std::complex<float> *d_out;
46 int *d_oo; // output index
47 std::vector< std::complex<float> > &d_remainder;
48 missing_pkt_checker &d_checker;
49 all_context_t d_if_context;
50 size_t d_if_context_n32_bit_words;
54 rx_32fc_handler(int noutput_items, std::complex<float> *out,
55 int *oo, std::vector< std::complex<float> > &remainder,
56 missing_pkt_checker &checker)
57 : d_noutput_items(noutput_items), d_out(out),
58 d_oo(oo), d_remainder(remainder), d_checker(checker),
59 d_if_context_n32_bit_words(0) {}
63 bool operator()(const uint32_t *payload,
65 const vrt::expanded_header *hdr);
66 all_context_t* get_if_context(void){
67 return d_if_context_n32_bit_words? &d_if_context : NULL;};
70 rx_32fc_handler::~rx_32fc_handler()
75 rx_32fc_handler::operator()(const uint32_t *payload,
77 const vrt::expanded_header *hdr)
79 if (hdr->if_data_p()){
80 int nmissing = d_checker.check(hdr);
81 if (VERBOSE && nmissing != 0){
82 std::cerr << "S" << nmissing;
85 // copy as many as will fit into the output buffer.
87 size_t n = std::min(n32_bit_words, (size_t)(d_noutput_items - *d_oo));
88 vrt::copy_net_16sc_to_host_32fc(n, payload, &d_out[*d_oo]);
91 // if there are any left over, copy them into remainder and tell
92 // our caller we're had enough for now.
94 size_t r = n32_bit_words - n;
96 assert(d_remainder.size() == 0);
97 d_remainder.resize(r);
98 vrt::copy_net_16sc_to_host_32fc(r, &payload[n], &d_remainder[0]);
99 return false; // Stop calling us.
102 return true; // Keep calling us, we've got more room
104 else if (hdr->if_context_p()){
105 // print the IF-Context packet
106 fprintf(stderr, "\nIF-Context:\n");
107 //for (size_t i = 0; i < n32_bit_words; i++)
108 // fprintf(stderr, "%04x: %08x\n", (unsigned int) i, ntohl(payload[i]));
109 memcpy(&d_if_context, payload, sizeof(uint32_t)*n32_bit_words);
110 d_if_context_n32_bit_words = n32_bit_words;
114 // It's most likely an Extension Data or Extension Context packet
115 // (that we don't know how to interpret...)
116 fprintf(stderr, "\nIF-Extension:\n");
117 for (size_t i = 0; i < n32_bit_words; i++)
118 fprintf(stderr, "%04x: %08x\n", (unsigned int) i, ntohl(payload[i]));
124 // ------------------------------------------------------------------------
126 vrt_source_32fc::vrt_source_32fc(const char *name)
128 : vrt_source_base(name,
129 gr_make_io_signature(1, 1, sizeof(gr_complex)))
133 vrt_source_32fc::~vrt_source_32fc()
136 std::cerr << "\nvrt_source_32fc: npackets = " << d_checker.npackets()
137 << " nwrong_pkt_cnt = " << d_checker.nwrong_pkt_cnt()
138 << " nmissing_pkt_est = " << d_checker.nmissing_pkt_est()
144 vrt_source_32fc::work(int noutput_items,
145 gr_vector_const_void_star &input_items,
146 gr_vector_void_star &output_items)
148 gr_complex *out = (gr_complex *)output_items[0];
151 // Handle any samples left over from the last call.
152 int t = std::min(noutput_items, (int)d_remainder.size());
154 for (int i = 0; i < t; i++)
155 out[i] = d_remainder[i];
156 d_remainder.erase(d_remainder.begin(), d_remainder.begin()+t);
159 if (noutput_items - oo == 0)
162 // While we've got room, and there are packets, handle them
163 rx_32fc_handler h(noutput_items, out, &oo, d_remainder, d_checker);
164 bool ok = vrt_rx()->rx_packets(&h);
167 std::cerr << "vrt_source_32fc: vrt::rx_packets() failed" << std::endl;
168 return -1; // say we're done
171 //we have a context packet, grab its useful information...
172 //remember that things are in network byte order!
173 if (h.get_if_context()){
174 //extract caldiv stuff
175 d_lo_freq = vrt_freq_to_double(ntohx(h.get_if_context()->caldiv.lo_freq));
176 d_cal_freq = vrt_freq_to_double(ntohx(h.get_if_context()->caldiv.cal_freq));
177 d_lo_locked = bool(ntohx(h.get_if_context()->caldiv.lo_locked));
178 d_cal_locked = bool(ntohx(h.get_if_context()->caldiv.cal_locked));
179 d_cal_enabled = bool(ntohx(h.get_if_context()->caldiv.cal_enabled));
180 d_caldiv_temp = vrt_temp_to_double(ntohx(h.get_if_context()->caldiv.temp));
181 d_caldiv_rev = ntohx(h.get_if_context()->caldiv.rev);
182 d_caldiv_ser = ntohx(h.get_if_context()->caldiv.ser);
183 d_caldiv_mod = ntohx(h.get_if_context()->caldiv.mod);
185 d_utc_time = ntohx(h.get_if_context()->gps.formatted_gps.integer_secs);
186 d_altitude = vrt_altitude_to_double(ntohx(h.get_if_context()->gps.formatted_gps.altitude));
187 d_longitude = vrt_geo_angle_to_double(ntohx(h.get_if_context()->gps.formatted_gps.longitude));
188 d_latitude = vrt_geo_angle_to_double(ntohx(h.get_if_context()->gps.formatted_gps.latitude));