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Diffstat (limited to 'convenience/convenience.c')
| -rw-r--r-- | convenience/convenience.c | 304 |
1 files changed, 0 insertions, 304 deletions
diff --git a/convenience/convenience.c b/convenience/convenience.c deleted file mode 100644 index 517dc4e..0000000 --- a/convenience/convenience.c +++ /dev/null @@ -1,304 +0,0 @@ -/* - * Copyright (C) 2014 by Kyle Keen <keenerd@gmail.com> - * - * 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/>. - */ - -/* a collection of user friendly tools - * todo: use strtol for more flexible int parsing - * */ - -#include <string.h> -#include <stdio.h> -#include <stdlib.h> - -#ifndef _WIN32 -#include <unistd.h> -#else -#include <windows.h> -#include <fcntl.h> -#include <io.h> -#define _USE_MATH_DEFINES -#endif - -#include <math.h> - -#include "rtl-sdr.h" - -double atofs(char *s) -/* standard suffixes */ -{ - char last; - int len; - double suff = 1.0; - len = strlen(s); - last = s[len-1]; - s[len-1] = '\0'; - switch (last) { - case 'g': - case 'G': - suff *= 1e3; - case 'm': - case 'M': - suff *= 1e3; - case 'k': - case 'K': - suff *= 1e3; - suff *= atof(s); - s[len-1] = last; - return suff; - } - s[len-1] = last; - return atof(s); -} - -double atoft(char *s) -/* time suffixes, returns seconds */ -{ - char last; - int len; - double suff = 1.0; - len = strlen(s); - last = s[len-1]; - s[len-1] = '\0'; - switch (last) { - case 'h': - case 'H': - suff *= 60; - case 'm': - case 'M': - suff *= 60; - case 's': - case 'S': - suff *= atof(s); - s[len-1] = last; - return suff; - } - s[len-1] = last; - return atof(s); -} - -double atofp(char *s) -/* percent suffixes */ -{ - char last; - int len; - double suff = 1.0; - len = strlen(s); - last = s[len-1]; - s[len-1] = '\0'; - switch (last) { - case '%': - suff *= 0.01; - suff *= atof(s); - s[len-1] = last; - return suff; - } - s[len-1] = last; - return atof(s); -} - -int nearest_gain(rtlsdr_dev_t *dev, int target_gain) -{ - int i, r, err1, err2, count, nearest; - int* gains; - r = rtlsdr_set_tuner_gain_mode(dev, 1); - if (r < 0) { - fprintf(stderr, "WARNING: Failed to enable manual gain.\n"); - return r; - } - count = rtlsdr_get_tuner_gains(dev, NULL); - if (count <= 0) { - return 0; - } - gains = malloc(sizeof(int) * count); - count = rtlsdr_get_tuner_gains(dev, gains); - nearest = gains[0]; - for (i=0; i<count; i++) { - err1 = abs(target_gain - nearest); - err2 = abs(target_gain - gains[i]); - if (err2 < err1) { - nearest = gains[i]; - } - } - free(gains); - return nearest; -} - -int verbose_set_frequency(rtlsdr_dev_t *dev, uint32_t frequency) -{ - int r; - r = rtlsdr_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); - } - return r; -} - -int verbose_set_sample_rate(rtlsdr_dev_t *dev, uint32_t samp_rate) -{ - int r; - r = rtlsdr_set_sample_rate(dev, samp_rate); - if (r < 0) { - fprintf(stderr, "WARNING: Failed to set sample rate.\n"); - } else { - fprintf(stderr, "Sampling at %u S/s.\n", samp_rate); - } - return r; -} - -int verbose_direct_sampling(rtlsdr_dev_t *dev, int on) -{ - int r; - r = rtlsdr_set_direct_sampling(dev, on); - if (r != 0) { - fprintf(stderr, "WARNING: Failed to set direct sampling mode.\n"); - return r; - } - if (on == 0) { - fprintf(stderr, "Direct sampling mode disabled.\n");} - if (on == 1) { - fprintf(stderr, "Enabled direct sampling mode, input 1/I.\n");} - if (on == 2) { - fprintf(stderr, "Enabled direct sampling mode, input 2/Q.\n");} - return r; -} - -int verbose_offset_tuning(rtlsdr_dev_t *dev) -{ - int r; - r = rtlsdr_set_offset_tuning(dev, 1); - if (r != 0) { - fprintf(stderr, "WARNING: Failed to set offset tuning.\n"); - } else { - fprintf(stderr, "Offset tuning mode enabled.\n"); - } - return r; -} - -int verbose_auto_gain(rtlsdr_dev_t *dev) -{ - int r; - r = rtlsdr_set_tuner_gain_mode(dev, 0); - if (r != 0) { - fprintf(stderr, "WARNING: Failed to set tuner gain.\n"); - } else { - fprintf(stderr, "Tuner gain set to automatic.\n"); - } - return r; -} - -int verbose_gain_set(rtlsdr_dev_t *dev, int gain) -{ - int r; - r = rtlsdr_set_tuner_gain_mode(dev, 1); - if (r < 0) { - fprintf(stderr, "WARNING: Failed to enable manual gain.\n"); - return r; - } - r = rtlsdr_set_tuner_gain(dev, gain); - if (r != 0) { - fprintf(stderr, "WARNING: Failed to set tuner gain.\n"); - } else { - fprintf(stderr, "Tuner gain set to %0.2f dB.\n", gain/10.0); - } - return r; -} - -int verbose_ppm_set(rtlsdr_dev_t *dev, int ppm_error) -{ - int r; - if (ppm_error == 0) { - return 0;} - r = rtlsdr_set_freq_correction(dev, ppm_error); - if (r < 0) { - fprintf(stderr, "WARNING: Failed to set ppm error.\n"); - } else { - fprintf(stderr, "Tuner error set to %i ppm.\n", ppm_error); - } - return r; -} - -int verbose_reset_buffer(rtlsdr_dev_t *dev) -{ - int r; - r = rtlsdr_reset_buffer(dev); - if (r < 0) { - fprintf(stderr, "WARNING: Failed to reset buffers.\n");} - return r; -} - -int verbose_device_search(char *s) -{ - int i, device_count, device, offset; - char *s2; - char vendor[256], product[256], serial[256]; - device_count = rtlsdr_get_device_count(); - if (!device_count) { - fprintf(stderr, "No supported devices found.\n"); - return -1; - } - fprintf(stderr, "Found %d device(s):\n", device_count); - for (i = 0; i < device_count; i++) { - rtlsdr_get_device_usb_strings(i, vendor, product, serial); - fprintf(stderr, " %d: %s, %s, SN: %s\n", i, vendor, product, serial); - } - fprintf(stderr, "\n"); - /* does string look like raw id number */ - device = (int)strtol(s, &s2, 0); - if (s2[0] == '\0' && device >= 0 && device < device_count) { - fprintf(stderr, "Using device %d: %s\n", - device, rtlsdr_get_device_name((uint32_t)device)); - return device; - } - /* does string exact match a serial */ - for (i = 0; i < device_count; i++) { - rtlsdr_get_device_usb_strings(i, vendor, product, serial); - if (strcmp(s, serial) != 0) { - continue;} - device = i; - fprintf(stderr, "Using device %d: %s\n", - device, rtlsdr_get_device_name((uint32_t)device)); - return device; - } - /* does string prefix match a serial */ - for (i = 0; i < device_count; i++) { - rtlsdr_get_device_usb_strings(i, vendor, product, serial); - if (strncmp(s, serial, strlen(s)) != 0) { - continue;} - device = i; - fprintf(stderr, "Using device %d: %s\n", - device, rtlsdr_get_device_name((uint32_t)device)); - return device; - } - /* does string suffix match a serial */ - for (i = 0; i < device_count; i++) { - rtlsdr_get_device_usb_strings(i, vendor, product, serial); - offset = strlen(serial) - strlen(s); - if (offset < 0) { - continue;} - if (strncmp(s, serial+offset, strlen(s)) != 0) { - continue;} - device = i; - fprintf(stderr, "Using device %d: %s\n", - device, rtlsdr_get_device_name((uint32_t)device)); - return device; - } - fprintf(stderr, "No matching devices found.\n"); - return -1; -} - -// vim: tabstop=8:softtabstop=8:shiftwidth=8:noexpandtab |