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authorDimitri Stolnikov <horiz0n@gmx.net>2012-05-20 16:44:57 +0200
committerDimitri Stolnikov <horiz0n@gmx.net>2012-05-20 16:44:57 +0200
commit8650ea86db7d342b7662a5a2271df6e02cb2d1f7 (patch)
treea3a3f751fa23bc608d376c2da9ddef48187c011d
parent7d90bb808aeac3f3a52a24f6729ed34b39584787 (diff)
add osmo_sdr utility
-rw-r--r--software/libosmosdr/src/CMakeLists.txt14
-rw-r--r--software/libosmosdr/src/Makefile.am5
-rw-r--r--software/libosmosdr/src/osmo_sdr.c275
3 files changed, 293 insertions, 1 deletions
diff --git a/software/libosmosdr/src/CMakeLists.txt b/software/libosmosdr/src/CMakeLists.txt
index 3f4e054..0811a73 100644
--- a/software/libosmosdr/src/CMakeLists.txt
+++ b/software/libosmosdr/src/CMakeLists.txt
@@ -48,9 +48,21 @@ set_target_properties(osmosdr_static PROPERTIES OUTPUT_NAME osmosdr)
endif()
########################################################################
+# Build utility
+########################################################################
+add_executable(osmo_sdr osmo_sdr.c)
+target_link_libraries(osmo_sdr osmosdr_static
+ ${LIBUSB_LIBRARIES}
+)
+
+if(WIN32)
+set_property(TARGET osmo_sdr APPEND PROPERTY COMPILE_DEFINITIONS "osmosdr_STATIC" )
+endif()
+
+########################################################################
# Install built library files & utilities
########################################################################
-install(TARGETS osmosdr_shared osmosdr_static
+install(TARGETS osmosdr_shared osmosdr_static osmo_sdr
LIBRARY DESTINATION lib${LIB_SUFFIX} # .so/.dylib file
ARCHIVE DESTINATION lib${LIB_SUFFIX} # .lib file
RUNTIME DESTINATION bin # .dll file
diff --git a/software/libosmosdr/src/Makefile.am b/software/libosmosdr/src/Makefile.am
index add6f24..873559d 100644
--- a/software/libosmosdr/src/Makefile.am
+++ b/software/libosmosdr/src/Makefile.am
@@ -9,3 +9,8 @@ lib_LTLIBRARIES = libosmosdr.la
libosmosdr_la_SOURCES = libosmosdr.c
libosmosdr_la_LDFLAGS = -version-info $(LIBVERSION)
+
+bin_PROGRAMS = osmo_sdr
+
+osmo_sdr_SOURCES = osmo_sdr.c
+osmo_sdr_LDADD = libosmosdr.la
diff --git a/software/libosmosdr/src/osmo_sdr.c b/software/libosmosdr/src/osmo_sdr.c
new file mode 100644
index 0000000..391359d
--- /dev/null
+++ b/software/libosmosdr/src/osmo_sdr.c
@@ -0,0 +1,275 @@
+/*
+ * sysmocom OsmoSDR
+ * Copyright (C) 2012 by Steve Markgraf <steve@steve-m.de>
+ * Copyright (C) 2012 by Dimitri Stolnikov <horiz0n@gmx.net>
+ *
+ * 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 2 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/>.
+ */
+
+#include <errno.h>
+#include <signal.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifndef _WIN32
+#include <unistd.h>
+#else
+#include <Windows.h>
+#endif
+
+#include "osmosdr.h"
+
+#define DEFAULT_SAMPLE_RATE 2048000
+#define DEFAULT_ASYNC_BUF_NUMBER 32
+#define DEFAULT_BUF_LENGTH (16 * 16384)
+#define MINIMAL_BUF_LENGTH 512
+#define MAXIMAL_BUF_LENGTH (256 * 16384)
+
+static int do_exit = 0;
+static osmosdr_dev_t *dev = NULL;
+
+void usage(void)
+{
+ #ifdef _WIN32
+ fprintf(stderr,
+ "Usage:\t osmo_sdr-win.exe [device_index] [samplerate in kHz] "
+ "[gain] [frequency in Hz] [filename]\n");
+ #else
+ fprintf(stderr,
+ "Usage:\t -f frequency_to_tune_to [Hz]\n"
+ "\t[-s samplerate (default: 2048000 Hz)]\n"
+ "\t[-d device_index (default: 0)]\n"
+ "\t[-g tuner_gain (default: -1dB)]\n"
+ "\t[-b output_block_size (default: 16 * 16384)]\n"
+ "\t[-S force sync output (default: async)]\n"
+ "\tfilename (a '-' dumps samples to stdout)\n\n");
+#endif
+ exit(1);
+}
+
+#ifdef _WIN32
+BOOL WINAPI
+sighandler(int signum)
+{
+ if (CTRL_C_EVENT == signum) {
+ fprintf(stderr, "Signal caught, exiting!\n");
+ do_exit = 1;
+ osmosdr_cancel_async(dev);
+ return TRUE;
+ }
+ return FALSE;
+}
+#else
+static void sighandler(int signum)
+{
+ fprintf(stderr, "Signal caught, exiting!\n");
+ do_exit = 1;
+ osmosdr_cancel_async(dev);
+}
+#endif
+
+static void osmosdr_callback(unsigned char *buf, uint32_t len, void *ctx)
+{
+ if (ctx) {
+ if (fwrite(buf, 1, len, (FILE*)ctx) != len) {
+ fprintf(stderr, "Short write, samples lost, exiting!\n");
+ osmosdr_cancel_async(dev);
+ }
+ }
+}
+
+int main(int argc, char **argv)
+{
+#ifndef _WIN32
+ struct sigaction sigact;
+#endif
+ char *filename = NULL;
+ int n_read;
+ int r, opt;
+ int i, gain = -10; // tenths of a dB
+ int sync_mode = 0;
+ FILE *file;
+ uint8_t *buffer;
+ uint32_t dev_index = 0;
+ uint32_t frequency = 100000000;
+ uint32_t samp_rate = DEFAULT_SAMPLE_RATE;
+ uint32_t out_block_size = DEFAULT_BUF_LENGTH;
+ int device_count;
+ char vendor[256], product[256], serial[256];
+#ifndef _WIN32
+ while ((opt = getopt(argc, argv, "d:f:g:s:b:S::")) != -1) {
+ switch (opt) {
+ case 'd':
+ dev_index = atoi(optarg);
+ break;
+ case 'f':
+ frequency = (uint32_t)atof(optarg);
+ break;
+ case 'g':
+ gain = (int)(atof(optarg) * 10);
+ break;
+ case 's':
+ samp_rate = (uint32_t)atof(optarg);
+ break;
+ case 'b':
+ out_block_size = (uint32_t)atof(optarg);
+ break;
+ case 'S':
+ sync_mode = 1;
+ break;
+ default:
+ usage();
+ break;
+ }
+ }
+
+ if (argc <= optind) {
+ usage();
+ } else {
+ filename = argv[optind];
+ }
+#else
+ if(argc <6)
+ usage();
+ dev_index = atoi(argv[1]);
+ samp_rate = atoi(argv[2])*1000;
+ gain=(int)(atof(argv[3]) * 10);
+ frequency = atoi(argv[4]);
+ filename = argv[5];
+#endif
+ if(out_block_size < MINIMAL_BUF_LENGTH ||
+ out_block_size > MAXIMAL_BUF_LENGTH ){
+ fprintf(stderr,
+ "Output block size wrong value, falling back to default\n");
+ fprintf(stderr,
+ "Minimal length: %u\n", MINIMAL_BUF_LENGTH);
+ fprintf(stderr,
+ "Maximal length: %u\n", MAXIMAL_BUF_LENGTH);
+ out_block_size = DEFAULT_BUF_LENGTH;
+ }
+
+ buffer = malloc(out_block_size * sizeof(uint8_t));
+
+ device_count = osmosdr_get_device_count();
+ if (!device_count) {
+ fprintf(stderr, "No supported devices found.\n");
+ exit(1);
+ }
+
+ fprintf(stderr, "Found %d device(s):\n", device_count);
+ for (i = 0; i < device_count; i++) {
+ osmosdr_get_device_usb_strings(i, vendor, product, serial);
+ fprintf(stderr, " %d: %s, %s, SN: %s\n", i, vendor, product, serial);
+ }
+ fprintf(stderr, "\n");
+
+ fprintf(stderr, "Using device %d: %s\n",
+ dev_index, osmosdr_get_device_name(dev_index));
+
+ r = osmosdr_open(&dev, dev_index);
+ if (r < 0) {
+ fprintf(stderr, "Failed to open osmosdr device #%d.\n", dev_index);
+ exit(1);
+ }
+#ifndef _WIN32
+ sigact.sa_handler = sighandler;
+ sigemptyset(&sigact.sa_mask);
+ sigact.sa_flags = 0;
+ sigaction(SIGINT, &sigact, NULL);
+ sigaction(SIGTERM, &sigact, NULL);
+ sigaction(SIGQUIT, &sigact, NULL);
+ sigaction(SIGPIPE, &sigact, NULL);
+#else
+ SetConsoleCtrlHandler( (PHANDLER_ROUTINE) sighandler, TRUE );
+#endif
+
+ r = osmosdr_get_usb_strings(dev, vendor, product, serial);
+ if (r < 0)
+ fprintf(stderr, "WARNING: Failed to read usb strings.\n");
+ else
+ fprintf(stderr, "%s, %s: SN: %s\n", vendor, product, serial);
+
+ /* Set the sample rate */
+ r = osmosdr_set_sample_rate(dev, samp_rate);
+ if (r < 0)
+ fprintf(stderr, "WARNING: Failed to set sample rate.\n");
+
+ /* Set the frequency */
+ r = osmosdr_set_center_freq(dev, frequency);
+ if (r < 0)
+ fprintf(stderr, "WARNING: Failed to set center freq.\n");
+ else
+ fprintf(stderr, "Tuned to %u Hz.\n", frequency);
+
+ /* Set the tuner gain */
+ r = osmosdr_set_tuner_gain(dev, gain);
+ if (r < 0)
+ fprintf(stderr, "WARNING: Failed to set tuner gain.\n");
+ else
+ fprintf(stderr, "Tuner gain set to %f dB.\n", gain/10.0);
+
+ if(strcmp(filename, "-") == 0) { /* Write samples to stdout */
+ file = stdout;
+ } else {
+ file = fopen(filename, "wb");
+ if (!file) {
+ fprintf(stderr, "Failed to open %s\n", filename);
+ goto out;
+ }
+ }
+
+ /* Reset endpoint before we start reading from it (mandatory) */
+ r = osmosdr_reset_buffer(dev);
+ if (r < 0)
+ fprintf(stderr, "WARNING: Failed to reset buffers.\n");
+
+ if (sync_mode) {
+ fprintf(stderr, "Reading samples in sync mode...\n");
+ while (!do_exit) {
+ r = osmosdr_read_sync(dev, buffer, out_block_size, &n_read);
+ if (r < 0) {
+ fprintf(stderr, "WARNING: sync read failed.\n");
+ break;
+ }
+
+ if (fwrite(buffer, 1, n_read, file) != (size_t)n_read) {
+ fprintf(stderr, "Short write, samples lost, exiting!\n");
+ break;
+ }
+
+ if ((uint32_t)n_read < out_block_size) {
+ fprintf(stderr, "Short read, samples lost, exiting!\n");
+ break;
+ }
+ }
+ } else {
+ fprintf(stderr, "Reading samples in async mode...\n");
+ r = osmosdr_read_async(dev, osmosdr_callback, (void *)file,
+ DEFAULT_ASYNC_BUF_NUMBER, out_block_size);
+ }
+
+ if (do_exit)
+ fprintf(stderr, "\nUser cancel, exiting...\n");
+ else
+ fprintf(stderr, "\nLibrary error %d, exiting...\n", r);
+
+ if (file != stdout)
+ fclose(file);
+
+ osmosdr_close(dev);
+ free (buffer);
+out:
+ return r >= 0 ? r : -r;
+}