3 * Copyright 2007,2008 Free Software Foundation, Inc.
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include <usrp2/usrp2.h>
23 #include <usrp2/strtod_si.h>
28 #include <gruel/realtime.h>
34 typedef std::complex<float> fcomplex;
36 static volatile bool signaled = false;
45 install_sig_handler(int signum,
46 void (*new_handler)(int))
48 struct sigaction new_action;
49 memset (&new_action, 0, sizeof (new_action));
51 new_action.sa_handler = new_handler;
52 sigemptyset (&new_action.sa_mask);
53 new_action.sa_flags = 0;
55 if (sigaction (signum, &new_action, 0) < 0){
56 perror ("sigaction (install new)");
57 throw std::runtime_error ("sigaction");
63 prettify_progname(const char *progname) // that's probably almost a word ;)
65 const char *p = strrchr(progname, '/'); // drop leading directory path
69 if (strncmp(p, "lt-", 3) == 0) // drop lt- libtool prefix
76 usage(const char *progname)
78 fprintf(stderr, "Usage: %s [options]\n\n", prettify_progname(progname));
79 fprintf(stderr, "Options:\n");
80 fprintf(stderr, " -h show this message and exit\n");
81 fprintf(stderr, " -e ETH_INTERFACE specify ethernet interface [default=eth0]\n");
82 fprintf(stderr, " -m MAC_ADDR mac address of USRP2 HH:HH [default=first one found]\n");
83 fprintf(stderr, " -I INPUT_FILE set input filename [default=stdin]\n");
84 fprintf(stderr, " -r repeat. When EOF of input file is reached, seek to beginning\n");
85 fprintf(stderr, " -f FREQ set frequency to FREQ [default=0]\n");
86 fprintf(stderr, " -i INTERP set interpolation rate to INTERP [default=32]\n");
87 fprintf(stderr, " -g gain set tx gain\n");
88 fprintf(stderr, " -S SCALE fpga scaling factor for I & Q [default=256]\n");
91 #define GAIN_NOT_SET (-1000)
92 #define MAX_SAMPLES (371)
95 main(int argc, char **argv)
97 const char *interface = "eth0";
98 const char *input_filename = 0;
100 const char *mac_addr_str = "";
103 int32_t samples_per_frame = MAX_SAMPLES;
105 double gain = GAIN_NOT_SET;
111 while ((ch = getopt(argc, argv, "he:m:I:rf:i:S:F:g:")) != EOF){
119 mac_addr_str = optarg;
121 if (!usrp2_basic::parse_mac_addr(optarg, &mac_addr)){
122 std::cerr << "invalid mac addr: " << optarg << std::endl;
130 input_filename = optarg;
138 if (!strtod_si(optarg, &freq)){
139 std::cerr << "invalid number: " << optarg << std::endl;
146 samples_per_frame = strtol(optarg, 0, 0);
150 interp = strtol(optarg, 0, 0);
154 if (!strtod_si(optarg, &tmp)){
155 std::cerr << "invalid number: " << optarg << std::endl;
159 scale = static_cast<int32_t>(tmp);
170 if (argc - optind != 0){
175 if (samples_per_frame < 9 || samples_per_frame > MAX_SAMPLES){
176 std::cerr << prettify_progname(argv[0])
177 << ": samples_per_frame is out of range. "
178 << "Must be in [9, " << MAX_SAMPLES << "].\n";
185 if (input_filename == 0)
188 fp = fopen(input_filename, "rb");
190 perror(input_filename);
195 install_sig_handler(SIGINT, sig_handler);
198 gruel::rt_status_t rt = gruel::enable_realtime_scheduling();
199 if (rt != gruel::RT_OK)
200 std::cerr << "Failed to enable realtime scheduling" << std::endl;
203 usrp2::usrp2::sptr u2 = usrp2::usrp2::make(interface, mac_addr_str);
205 if (gain != GAIN_NOT_SET){
206 if (!u2->set_tx_gain(gain)){
207 std::cerr << "set_tx_gain failed\n";
212 usrp2::tune_result tr;
213 if (!u2->set_tx_center_freq(freq, &tr)){
214 fprintf(stderr, "set_tx_center_freq(%g) failed\n", freq);
218 printf("Daughterboard configuration:\n");
219 printf(" baseband_freq=%f\n", tr.baseband_freq);
220 printf(" duc_freq=%f\n", tr.dxc_freq);
221 printf(" residual_freq=%f\n", tr.residual_freq);
222 printf(" inverted=%s\n\n", tr.spectrum_inverted ? "yes" : "no");
224 if (!u2->set_tx_interp(interp)){
225 fprintf(stderr, "set_tx_interp(%d) failed\n", interp);
230 if (!u2->set_tx_scale_iq(scale, scale)){
231 std::cerr << "set_tx_scale_iq failed\n";
236 usrp2::tx_metadata md;
238 md.start_of_burst = 1;
243 std::complex<int16_t> samples[MAX_SAMPLES];
245 int r = fread(samples, sizeof(uint32_t), samples_per_frame, fp);
247 // fprintf(stderr, "fread -> %d\n", r);
252 if (fseek(fp, 0, SEEK_SET) == -1)
256 // FIXME if r < 9, pad to 9 for minimum packet size constraint
258 if (!u2->tx_16sc(0, samples, r, &md)){
259 fprintf(stderr, "tx_complex_int16 failed\n");