[Commit-gnuradio] r7962 - usrp2/trunk/host/apps

[eb]

Author: eb
Date: 2008-03-07 18:35:41 -0700 (Fri, 07 Mar 2008)
New Revision: 7962

Added:
   usrp2/trunk/host/apps/tx_samples_at_time.cc
Modified:
   usrp2/trunk/host/apps/Makefile.am
Log:
work-in-progress

Modified: usrp2/trunk/host/apps/Makefile.am
===================================================================
--- usrp2/trunk/host/apps/Makefile.am   2008-03-07 23:49:08 UTC (rev 7961)
+++ usrp2/trunk/host/apps/Makefile.am   2008-03-08 01:35:41 UTC (rev 7962)
@@ -26,6 +26,7 @@
        rx_samples \
        rx_streaming_samples \
        tx_samples \
+       tx_samples_at_t \
        gen_const \
        u2_burn_mac_addr
 
@@ -33,6 +34,7 @@
 rx_samples_SOURCES = rx_samples.cc
 rx_streaming_samples_SOURCES = rx_streaming_samples.cc
 tx_samples_SOURCES = tx_samples.cc
+tx_samples_at_t = tx_samples_at_t.cc
 gen_const_SOURCES = gen_const.cc
 u2_burn_mac_addr = u2_burn_mac_addr.cc
 

Copied: usrp2/trunk/host/apps/tx_samples_at_time.cc (from rev 7959, 
usrp2/trunk/host/apps/tx_samples.cc)
===================================================================
--- usrp2/trunk/host/apps/tx_samples_at_time.cc                         (rev 0)
+++ usrp2/trunk/host/apps/tx_samples_at_time.cc 2008-03-08 01:35:41 UTC (rev 
7962)
@@ -0,0 +1,229 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2007,2008 Free Software Foundation, Inc.
+ *
+ * This program 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 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * Send Ton seconds of samples, then wait for Toff seconds, and repeat
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include "usrp2_basic.h"
+#include <iostream>
+#include <complex>
+#include <getopt.h>
+#include "strtod_si.h"
+
+
+static const double T_on  = 1.0;               // seconds of data
+static const double T_off = 0.5;               // seconds of waiting
+
+
+typedef std::complex<float> fcomplex;
+
+
+static const char *
+prettify_progname(const char *progname)                // that's probably 
almost a word ;)
+{
+  const char *p = strrchr(progname, '/');      // drop leading directory path
+  if (p)
+    p++;
+
+  if (strncmp(p, "lt-", 3) == 0)               // drop lt- libtool prefix
+    p += 3;
+
+  return p;
+}
+
+static void
+usage(const char *progname)
+{
+  fprintf(stderr, "Usage: %s [options]\n\n", prettify_progname(progname));
+  fprintf(stderr, "Options:\n");
+  fprintf(stderr, "  -h                   show this message and exit\n");
+  fprintf(stderr, "  -e ETH_INTERFACE     specify ethernet interface 
[default=eth0]\n");
+  fprintf(stderr, "  -m MAC_ADDR          mac address of USRP2 HH:HH 
[default=first one found]\n");
+  fprintf(stderr, "  -I INPUT_FILE        set input filename 
[default=stdin]\n");
+  fprintf(stderr, "  -r                   repeat.  When EOF of input file is 
reached, seek to beginning\n");
+  fprintf(stderr, "  -f FREQ              set frequency to FREQ 
[default=0]\n");
+  fprintf(stderr, "  -i INTERP            set interpolation rate to INTERP 
[default=32]\n");
+  fprintf(stderr, "  -F SAMPLES_PER_FRAME number of samples in each frame 
[default=371]\n");
+  fprintf(stderr, "  -S SCALE             fpga scaling factor for I & Q 
[default=256]\n");
+}
+
+int
+main(int argc, char **argv)
+{
+  const char *interface = "eth0";
+  const char *input_filename = 0;
+  bool repeat = false;
+  const char *mac_addr_str = 0;
+  double freq = 0;
+  int32_t interp = 32;
+  int32_t samples_per_frame = 371;
+  int32_t scale = 256;
+  
+  int    ch;
+  double tmp;
+  u2_mac_addr_t mac_addr;
+
+  while ((ch = getopt(argc, argv, "he:m:I:rf:i:F:S")) != EOF){
+    switch (ch){
+
+    case 'e':
+      interface = optarg;
+      break;
+      
+    case 'm':
+      mac_addr_str = optarg;
+      if (!usrp2_basic::parse_mac_addr(optarg, &mac_addr)){
+       std::cerr << "invalid mac addr: " << optarg << std::endl;
+       usage(argv[0]);
+       return 1;
+      }
+      break;
+
+    case 'I':
+      input_filename = optarg;
+      break;
+      
+    case 'r':
+      repeat = true;
+      break;
+      
+    case 'f':
+      if (!strtod_si(optarg, &freq)){
+       std::cerr << "invalid number: " << optarg << std::endl;
+       usage(argv[0]);
+       return 1;
+      }
+      break;
+
+    case 'F':
+      samples_per_frame = strtol(optarg, 0, 0);
+      break;
+
+    case 'i':
+      interp = strtol(optarg, 0, 0);
+      break;
+
+    case 'S':
+      if (!strtod_si(optarg, &tmp)){
+       std::cerr << "invalid number: " << optarg << std::endl;
+       usage(argv[0]);
+       return 1;
+      }
+      scale = static_cast<int32_t>(tmp);
+      break;
+      
+    case 'h':
+    default:
+      usage(argv[0]);
+      return 1;
+    }
+  }
+
+  
+  if (argc - optind != 0){
+    usage(argv[0]);
+    return 1;
+  }
+  
+  FILE *fp = 0;
+  if (input_filename == 0)
+    fp = stdin;
+  else {
+    fp = fopen(input_filename, "rb");
+    if (fp == 0){
+      perror(input_filename);
+      return 1;
+    }
+  }
+
+  if (samples_per_frame < 9 || samples_per_frame > 506){
+    std::cerr << prettify_progname(argv[0])
+             << ": samples_per_frame is out of range.  Must be in [9, 506].\n";
+    usage(argv[0]);
+    return 1;
+  }
+
+  usrp2_basic *u2 = new usrp2_basic();
+
+  if (!u2->open(interface)){
+    std::cerr << "couldn't open " << interface << std::endl;
+    return 1;
+  }
+
+  std::vector<op_id_reply_t> r = u2->find_usrps();
+
+  for (size_t i = 0; i < r.size(); i++){
+    std::cout << r[i] << std::endl;
+  }
+
+  if (r.size() == 0){
+    std::cerr << "No USRP2 found.\n";
+    return 1;
+  }
+
+  u2_mac_addr_t which = r[0].addr;     // pick the first one
+
+
+  if (1){
+    if (!u2->config_tx(which, freq, interp, scale, scale)){
+      std::cerr << "tx_samples: config_tx failed\n";
+      return 1;
+    }
+  }
+
+
+  // FIXME query usrp2 for it's current idea of time
+  uint32_t t_now = 0;
+
+  double baseband_rate = (double) u2->dac_rate() / interp;
+  uint32_t t_on_in_samples = static_cast<uint32_t>(T_on * baseband_rate);
+
+  uint32_t t_off_in_ticks =
+    static_case<uint32_t> (T_off * u2->fpga_master_clock_freq());
+
+  
+
+  u2_eth_samples_t     pkt;
+  u2p_set_word0(&pkt.hdrs.fixed, U2P_TX_IMMEDIATE | U2P_TX_START_OF_BURST, 0);
+  u2p_set_timestamp(&pkt.hdrs.fixed, T_NOW);
+
+  while (1){
+
+    int r = fread(&pkt.samples, sizeof(uint32_t), samples_per_frame, fp);
+
+    // fprintf(stderr, "fread -> %d\n", r);
+    
+    if (r == 0){
+      if (!repeat)
+       break;
+      if (fseek(fp, 0, SEEK_SET) == -1)
+       break;
+    }
+
+    // FIXME if r < 9, pad to 9 for minimum packet size constraint
+
+    if (!u2->write_samples(which, &pkt, r))
+      break;
+  }
+
+  return 0;
+}