From 37b99c704d77c60fa808fd393d17045d1d6cf32e Mon Sep 17 00:00:00 2001 From: dinashi Date: Sun, 13 Mar 2022 11:41:55 +0000 Subject: Add all changes and READMe --- Makefile | 3 - README.md | 30 +- utils/convenience/convenience.c | 308 ---------- utils/convenience/convenience.h | 142 ----- utils/getopt/getopt.c | 1059 -------------------------------- utils/getopt/getopt.h | 180 ------ utils/make.mk | 15 - utils/rtl_adsb.c | 507 --------------- utils/rtl_biast.c | 101 --- utils/rtl_eeprom.c | 426 ------------- utils/rtl_fm.c | 1289 --------------------------------------- utils/rtl_power.c | 1015 ------------------------------ utils/rtl_sdr.c | 278 --------- utils/rtl_tcp.c | 660 -------------------- utils/rtl_test.c | 457 -------------- 15 files changed, 29 insertions(+), 6441 deletions(-) delete mode 100644 utils/convenience/convenience.c delete mode 100644 utils/convenience/convenience.h delete mode 100644 utils/getopt/getopt.c delete mode 100644 utils/getopt/getopt.h delete mode 100644 utils/make.mk delete mode 100644 utils/rtl_adsb.c delete mode 100644 utils/rtl_biast.c delete mode 100644 utils/rtl_eeprom.c delete mode 100644 utils/rtl_fm.c delete mode 100644 utils/rtl_power.c delete mode 100644 utils/rtl_sdr.c delete mode 100644 utils/rtl_tcp.c delete mode 100644 utils/rtl_test.c diff --git a/Makefile b/Makefile index 2388da1..fd9b66c 100644 --- a/Makefile +++ b/Makefile @@ -15,7 +15,6 @@ OBJ_UTILS= BUILD_DIR=build/ include src/make.mk -include utils/make.mk OBJECTS=$(SOURCES:.c=.o) @@ -37,5 +36,3 @@ clean: rm -f *.so rm -f *.so.1 rm -f build/src/*.o - rm -f build/utils/rtl_* - rm -f build/utils/convenience/*.o diff --git a/README.md b/README.md index 7a13706..fdf27bc 100644 --- a/README.md +++ b/README.md @@ -1,4 +1,32 @@ -Experimental fork +#r820 +## Intro + +Experimental fork of [librtlsdr](https://osmocom.org/projects/rtl-sdr/wiki) project. + +## Goals + +* Support r820 chips only, as they are most common now, support +rtlsdrv3. Remove other tunners. +* Make easy integratable. At this stage there is drop in version of swift/xcode project [r820sdr-init](http://git.main.lv/cgit.cgi/r820sdr-init.git/) +* Scan all other forks and integrate all other features that other projects have implemented +* Scan all other forks for bug fixes +* Removed all the utlities rtl_* to seperate project [r820t-utils](http://git.main.lv/cgit.cgi/r820t-utils.git/) + + +## Source + + Main development: [http://git.main.lv/cgit.cgi/r820t.git/](http://git.main.lv/cgit.cgi/r820t.git/) + Mirror: [https://github.com/artursartamonovs/r820t](https://github.com/artursartamonovs/r820t) + +Other mirrors will be considered + +## Contributions + +At this stage no contributions are needed, as all this is experiment and to have some fun with SDR. + +## License + +Schrödinger's cat license \ No newline at end of file diff --git a/utils/convenience/convenience.c b/utils/convenience/convenience.c deleted file mode 100644 index 00cc2cc..0000000 --- a/utils/convenience/convenience.c +++ /dev/null @@ -1,308 +0,0 @@ -/* - * Copyright (C) 2014 by Kyle Keen - * - * 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 . - */ - -/* a collection of user friendly tools - * todo: use strtol for more flexible int parsing - * */ - -#include -#include -#include - -#ifndef _WIN32 -#include -#else -#include -#include -#include -#define _USE_MATH_DEFINES -#endif - -#include - -#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; - /* fall-through */ - case 'm': - case 'M': - suff *= 1e3; - /* fall-through */ - 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; - /* fall-through */ - case 'm': - case 'M': - suff *= 60; - /* fall-through */ - 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= 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 diff --git a/utils/convenience/convenience.h b/utils/convenience/convenience.h deleted file mode 100644 index 1faa2af..0000000 --- a/utils/convenience/convenience.h +++ /dev/null @@ -1,142 +0,0 @@ -/* - * Copyright (C) 2014 by Kyle Keen - * - * 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 . - */ - -/* a collection of user friendly tools */ - -/*! - * Convert standard suffixes (k, M, G) to double - * - * \param s a string to be parsed - * \return double - */ - -double atofs(char *s); - -/*! - * Convert time suffixes (s, m, h) to double - * - * \param s a string to be parsed - * \return seconds as double - */ - -double atoft(char *s); - -/*! - * Convert percent suffixe (%) to double - * - * \param s a string to be parsed - * \return double - */ - -double atofp(char *s); - -/*! - * Find nearest supported gain - * - * \param dev the device handle given by rtlsdr_open() - * \param target_gain in tenths of a dB - * \return 0 on success - */ - -int nearest_gain(rtlsdr_dev_t *dev, int target_gain); - -/*! - * Set device frequency and report status on stderr - * - * \param dev the device handle given by rtlsdr_open() - * \param frequency in Hz - * \return 0 on success - */ - -int verbose_set_frequency(rtlsdr_dev_t *dev, uint32_t frequency); - -/*! - * Set device sample rate and report status on stderr - * - * \param dev the device handle given by rtlsdr_open() - * \param samp_rate in samples/second - * \return 0 on success - */ - -int verbose_set_sample_rate(rtlsdr_dev_t *dev, uint32_t samp_rate); - -/*! - * Enable or disable the direct sampling mode and report status on stderr - * - * \param dev the device handle given by rtlsdr_open() - * \param on 0 means disabled, 1 I-ADC input enabled, 2 Q-ADC input enabled - * \return 0 on success - */ - -int verbose_direct_sampling(rtlsdr_dev_t *dev, int on); - -/*! - * Enable offset tuning and report status on stderr - * - * \param dev the device handle given by rtlsdr_open() - * \return 0 on success - */ - -int verbose_offset_tuning(rtlsdr_dev_t *dev); - -/*! - * Enable auto gain and report status on stderr - * - * \param dev the device handle given by rtlsdr_open() - * \return 0 on success - */ - -int verbose_auto_gain(rtlsdr_dev_t *dev); - -/*! - * Set tuner gain and report status on stderr - * - * \param dev the device handle given by rtlsdr_open() - * \param gain in tenths of a dB - * \return 0 on success - */ - -int verbose_gain_set(rtlsdr_dev_t *dev, int gain); - -/*! - * Set the frequency correction value for the device and report status on stderr. - * - * \param dev the device handle given by rtlsdr_open() - * \param ppm_error correction value in parts per million (ppm) - * \return 0 on success - */ - -int verbose_ppm_set(rtlsdr_dev_t *dev, int ppm_error); - -/*! - * Reset buffer - * - * \param dev the device handle given by rtlsdr_open() - * \return 0 on success - */ - -int verbose_reset_buffer(rtlsdr_dev_t *dev); - -/*! - * Find the closest matching device. - * - * \param s a string to be parsed - * \return dev_index int, -1 on error - */ - -int verbose_device_search(char *s); - diff --git a/utils/getopt/getopt.c b/utils/getopt/getopt.c deleted file mode 100644 index f1d461a..0000000 --- a/utils/getopt/getopt.c +++ /dev/null @@ -1,1059 +0,0 @@ -/* Getopt for GNU. - NOTE: getopt is now part of the C library, so if you don't know what - "Keep this file name-space clean" means, talk to drepper@gnu.org - before changing it! - Copyright (C) 1987,88,89,90,91,92,93,94,95,96,98,99,2000,2001 - Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ -/* This tells Alpha OSF/1 not to define a getopt prototype in . - Ditto for AIX 3.2 and . */ -#ifndef _NO_PROTO -# define _NO_PROTO -#endif - -#ifdef HAVE_CONFIG_H -# include -#endif - -#if !defined __STDC__ || !__STDC__ -/* This is a separate conditional since some stdc systems - reject `defined (const)'. */ -# ifndef const -# define const -# endif -#endif - -#include - -/* Comment out all this code if we are using the GNU C Library, and are not - actually compiling the library itself. This code is part of the GNU C - Library, but also included in many other GNU distributions. Compiling - and linking in this code is a waste when using the GNU C library - (especially if it is a shared library). Rather than having every GNU - program understand `configure --with-gnu-libc' and omit the object files, - it is simpler to just do this in the source for each such file. */ - -#define GETOPT_INTERFACE_VERSION 2 -#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2 -# include -# if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION -# define ELIDE_CODE -# endif -#endif - -#ifndef ELIDE_CODE - - -/* This needs to come after some library #include - to get __GNU_LIBRARY__ defined. */ -#ifdef __GNU_LIBRARY__ -/* Don't include stdlib.h for non-GNU C libraries because some of them - contain conflicting prototypes for getopt. */ -# include -# include -#endif /* GNU C library. */ - -#ifdef VMS -# include -# if HAVE_STRING_H - 0 -# include -# endif -#endif - -#ifndef _ -/* This is for other GNU distributions with internationalized messages. */ -# if (HAVE_LIBINTL_H && ENABLE_NLS) || defined _LIBC -# include -# ifndef _ -# define _(msgid) gettext (msgid) -# endif -# else -# define _(msgid) (msgid) -# endif -#endif - -/* This version of `getopt' appears to the caller like standard Unix `getopt' - but it behaves differently for the user, since it allows the user - to intersperse the options with the other arguments. - - As `getopt' works, it permutes the elements of ARGV so that, - when it is done, all the options precede everything else. Thus - all application programs are extended to handle flexible argument order. - - Setting the environment variable POSIXLY_CORRECT disables permutation. - Then the behavior is completely standard. - - GNU application programs can use a third alternative mode in which - they can distinguish the relative order of options and other arguments. */ - -#include "getopt.h" - -/* For communication from `getopt' to the caller. - When `getopt' finds an option that takes an argument, - the argument value is returned here. - Also, when `ordering' is RETURN_IN_ORDER, - each non-option ARGV-element is returned here. */ - -char *optarg; - -/* Index in ARGV of the next element to be scanned. - This is used for communication to and from the caller - and for communication between successive calls to `getopt'. - - On entry to `getopt', zero means this is the first call; initialize. - - When `getopt' returns -1, this is the index of the first of the - non-option elements that the caller should itself scan. - - Otherwise, `optind' communicates from one call to the next - how much of ARGV has been scanned so far. */ - -/* 1003.2 says this must be 1 before any call. */ -int optind = 1; - -/* Formerly, initialization of getopt depended on optind==0, which - causes problems with re-calling getopt as programs generally don't - know that. */ - -int __getopt_initialized; - -/* The next char to be scanned in the option-element - in which the last option character we returned was found. - This allows us to pick up the scan where we left off. - - If this is zero, or a null string, it means resume the scan - by advancing to the next ARGV-element. */ - -static char *nextchar; - -/* Callers store zero here to inhibit the error message - for unrecognized options. */ - -int opterr = 1; - -/* Set to an option character which was unrecognized. - This must be initialized on some systems to avoid linking in the - system's own getopt implementation. */ - -int optopt = '?'; - -/* Describe how to deal with options that follow non-option ARGV-elements. - - If the caller did not specify anything, - the default is REQUIRE_ORDER if the environment variable - POSIXLY_CORRECT is defined, PERMUTE otherwise. - - REQUIRE_ORDER means don't recognize them as options; - stop option processing when the first non-option is seen. - This is what Unix does. - This mode of operation is selected by either setting the environment - variable POSIXLY_CORRECT, or using `+' as the first character - of the list of option characters. - - PERMUTE is the default. We permute the contents of ARGV as we scan, - so that eventually all the non-options are at the end. This allows options - to be given in any order, even with programs that were not written to - expect this. - - RETURN_IN_ORDER is an option available to programs that were written - to expect options and other ARGV-elements in any order and that care about - the ordering of the two. We describe each non-option ARGV-element - as if it were the argument of an option with character code 1. - Using `-' as the first character of the list of option characters - selects this mode of operation. - - The special argument `--' forces an end of option-scanning regardless - of the value of `ordering'. In the case of RETURN_IN_ORDER, only - `--' can cause `getopt' to return -1 with `optind' != ARGC. */ - -static enum -{ - REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER -} ordering; - -/* Value of POSIXLY_CORRECT environment variable. */ -static char *posixly_correct; - -#ifdef __GNU_LIBRARY__ -/* We want to avoid inclusion of string.h with non-GNU libraries - because there are many ways it can cause trouble. - On some systems, it contains special magic macros that don't work - in GCC. */ -# include -# define my_index strchr -#else - -# if 1 //HAVE_STRING_H -# include -# else -# include -# endif - -/* Avoid depending on library functions or files - whose names are inconsistent. */ - -#ifndef getenv -#ifdef _MSC_VER -// DDK will complain if you don't use the stdlib defined getenv -#include -#else -extern char *getenv (); -#endif -#endif - -static char * -my_index (str, chr) - const char *str; - int chr; -{ - while (*str) - { - if (*str == chr) - return (char *) str; - str++; - } - return 0; -} - -/* If using GCC, we can safely declare strlen this way. - If not using GCC, it is ok not to declare it. */ -#ifdef __GNUC__ -/* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h. - That was relevant to code that was here before. */ -# if (!defined __STDC__ || !__STDC__) && !defined strlen -/* gcc with -traditional declares the built-in strlen to return int, - and has done so at least since version 2.4.5. -- rms. */ -extern int strlen (const char *); -# endif /* not __STDC__ */ -#endif /* __GNUC__ */ - -#endif /* not __GNU_LIBRARY__ */ - -/* Handle permutation of arguments. */ - -/* Describe the part of ARGV that contains non-options that have - been skipped. `first_nonopt' is the index in ARGV of the first of them; - `last_nonopt' is the index after the last of them. */ - -static int first_nonopt; -static int last_nonopt; - -#ifdef _LIBC -/* Stored original parameters. - XXX This is no good solution. We should rather copy the args so - that we can compare them later. But we must not use malloc(3). */ -extern int __libc_argc; -extern char **__libc_argv; - -/* Bash 2.0 gives us an environment variable containing flags - indicating ARGV elements that should not be considered arguments. */ - -# ifdef USE_NONOPTION_FLAGS -/* Defined in getopt_init.c */ -extern char *__getopt_nonoption_flags; - -static int nonoption_flags_max_len; -static int nonoption_flags_len; -# endif - -# ifdef USE_NONOPTION_FLAGS -# define SWAP_FLAGS(ch1, ch2) \ - if (nonoption_flags_len > 0) \ - { \ - char __tmp = __getopt_nonoption_flags[ch1]; \ - __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \ - __getopt_nonoption_flags[ch2] = __tmp; \ - } -# else -# define SWAP_FLAGS(ch1, ch2) -# endif -#else /* !_LIBC */ -# define SWAP_FLAGS(ch1, ch2) -#endif /* _LIBC */ - -/* Exchange two adjacent subsequences of ARGV. - One subsequence is elements [first_nonopt,last_nonopt) - which contains all the non-options that have been skipped so far. - The other is elements [last_nonopt,optind), which contains all - the options processed since those non-options were skipped. - - `first_nonopt' and `last_nonopt' are relocated so that they describe - the new indices of the non-options in ARGV after they are moved. */ - -#if defined __STDC__ && __STDC__ -static void exchange (char **); -#endif - -static void -exchange (argv) - char **argv; -{ - int bottom = first_nonopt; - int middle = last_nonopt; - int top = optind; - char *tem; - - /* Exchange the shorter segment with the far end of the longer segment. - That puts the shorter segment into the right place. - It leaves the longer segment in the right place overall, - but it consists of two parts that need to be swapped next. */ - -#if defined _LIBC && defined USE_NONOPTION_FLAGS - /* First make sure the handling of the `__getopt_nonoption_flags' - string can work normally. Our top argument must be in the range - of the string. */ - if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len) - { - /* We must extend the array. The user plays games with us and - presents new arguments. */ - char *new_str = malloc (top + 1); - if (new_str == NULL) - nonoption_flags_len = nonoption_flags_max_len = 0; - else - { - memset (__mempcpy (new_str, __getopt_nonoption_flags, - nonoption_flags_max_len), - '\0', top + 1 - nonoption_flags_max_len); - nonoption_flags_max_len = top + 1; - __getopt_nonoption_flags = new_str; - } - } -#endif - - while (top > middle && middle > bottom) - { - if (top - middle > middle - bottom) - { - /* Bottom segment is the short one. */ - int len = middle - bottom; - register int i; - - /* Swap it with the top part of the top segment. */ - for (i = 0; i < len; i++) - { - tem = argv[bottom + i]; - argv[bottom + i] = argv[top - (middle - bottom) + i]; - argv[top - (middle - bottom) + i] = tem; - SWAP_FLAGS (bottom + i, top - (middle - bottom) + i); - } - /* Exclude the moved bottom segment from further swapping. */ - top -= len; - } - else - { - /* Top segment is the short one. */ - int len = top - middle; - register int i; - - /* Swap it with the bottom part of the bottom segment. */ - for (i = 0; i < len; i++) - { - tem = argv[bottom + i]; - argv[bottom + i] = argv[middle + i]; - argv[middle + i] = tem; - SWAP_FLAGS (bottom + i, middle + i); - } - /* Exclude the moved top segment from further swapping. */ - bottom += len; - } - } - - /* Update records for the slots the non-options now occupy. */ - - first_nonopt += (optind - last_nonopt); - last_nonopt = optind; -} - -/* Initialize the internal data when the first call is made. */ - -#if defined __STDC__ && __STDC__ -static const char *_getopt_initialize (int, char *const *, const char *); -#endif -static const char * -_getopt_initialize (argc, argv, optstring) - int argc; - char *const *argv; - const char *optstring; -{ - /* Start processing options with ARGV-element 1 (since ARGV-element 0 - is the program name); the sequence of previously skipped - non-option ARGV-elements is empty. */ - - first_nonopt = last_nonopt = optind; - - nextchar = NULL; - - posixly_correct = getenv ("POSIXLY_CORRECT"); - - /* Determine how to handle the ordering of options and nonoptions. */ - - if (optstring[0] == '-') - { - ordering = RETURN_IN_ORDER; - ++optstring; - } - else if (optstring[0] == '+') - { - ordering = REQUIRE_ORDER; - ++optstring; - } - else if (posixly_correct != NULL) - ordering = REQUIRE_ORDER; - else - ordering = PERMUTE; - -#if defined _LIBC && defined USE_NONOPTION_FLAGS - if (posixly_correct == NULL - && argc == __libc_argc && argv == __libc_argv) - { - if (nonoption_flags_max_len == 0) - { - if (__getopt_nonoption_flags == NULL - || __getopt_nonoption_flags[0] == '\0') - nonoption_flags_max_len = -1; - else - { - const char *orig_str = __getopt_nonoption_flags; - int len = nonoption_flags_max_len = strlen (orig_str); - if (nonoption_flags_max_len < argc) - nonoption_flags_max_len = argc; - __getopt_nonoption_flags = - (char *) malloc (nonoption_flags_max_len); - if (__getopt_nonoption_flags == NULL) - nonoption_flags_max_len = -1; - else - memset (__mempcpy (__getopt_nonoption_flags, orig_str, len), - '\0', nonoption_flags_max_len - len); - } - } - nonoption_flags_len = nonoption_flags_max_len; - } - else - nonoption_flags_len = 0; -#endif - - return optstring; -} - -/* Scan elements of ARGV (whose length is ARGC) for option characters - given in OPTSTRING. - - If an element of ARGV starts with '-', and is not exactly "-" or "--", - then it is an option element. The characters of this element - (aside from the initial '-') are option characters. If `getopt' - is called repeatedly, it returns successively each of the option characters - from each of the option elements. - - If `getopt' finds another option character, it returns that character, - updating `optind' and `nextchar' so that the next call to `getopt' can - resume the scan with the following option character or ARGV-element. - - If there are no more option characters, `getopt' returns -1. - Then `optind' is the index in ARGV of the first ARGV-element - that is not an option. (The ARGV-elements have been permuted - so that those that are not options now come last.) - - OPTSTRING is a string containing the legitimate option characters. - If an option character is seen that is not listed in OPTSTRING, - return '?' after printing an error message. If you set `opterr' to - zero, the error message is suppressed but we still return '?'. - - If a char in OPTSTRING is followed by a colon, that means it wants an arg, - so the following text in the same ARGV-element, or the text of the following - ARGV-element, is returned in `optarg'. Two colons mean an option that - wants an optional arg; if there is text in the current ARGV-element, - it is returned in `optarg', otherwise `optarg' is set to zero. - - If OPTSTRING starts with `-' or `+', it requests different methods of - handling the non-option ARGV-elements. - See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above. - - Long-named options begin with `--' instead of `-'. - Their names may be abbreviated as long as the abbreviation is unique - or is an exact match for some defined option. If they have an - argument, it follows the option name in the same ARGV-element, separated - from the option name by a `=', or else the in next ARGV-element. - When `getopt' finds a long-named option, it returns 0 if that option's - `flag' field is nonzero, the value of the option's `val' field - if the `flag' field is zero. - - The elements of ARGV aren't really const, because we permute them. - But we pretend they're const in the prototype to be compatible - with other systems. - - LONGOPTS is a vector of `struct option' terminated by an - element containing a name which is zero. - - LONGIND returns the index in LONGOPT of the long-named option found. - It is only valid when a long-named option has been found by the most - recent call. - - If LONG_ONLY is nonzero, '-' as well as '--' can introduce - long-named options. */ - -int -_getopt_internal (argc, argv, optstring, longopts, longind, long_only) - int argc; - char *const *argv; - const char *optstring; - const struct option *longopts; - int *longind; - int long_only; -{ - int print_errors = opterr; - if (optstring[0] == ':') - print_errors = 0; - - if (argc < 1) - return -1; - - optarg = NULL; - - if (optind == 0 || !__getopt_initialized) - { - if (optind == 0) - optind = 1; /* Don't scan ARGV[0], the program name. */ - optstring = _getopt_initialize (argc, argv, optstring); - __getopt_initialized = 1; - } - - /* Test whether ARGV[optind] points to a non-option argument. - Either it does not have option syntax, or there is an environment flag - from the shell indicating it is not an option. The later information - is only used when the used in the GNU libc. */ -#if defined _LIBC && defined USE_NONOPTION_FLAGS -# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \ - || (optind < nonoption_flags_len \ - && __getopt_nonoption_flags[optind] == '1')) -#else -# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0') -#endif - - if (nextchar == NULL || *nextchar == '\0') - { - /* Advance to the next ARGV-element. */ - - /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been - moved back by the user (who may also have changed the arguments). */ - if (last_nonopt > optind) - last_nonopt = optind; - if (first_nonopt > optind) - first_nonopt = optind; - - if (ordering == PERMUTE) - { - /* If we have just processed some options following some non-options, - exchange them so that the options come first. */ - - if (first_nonopt != last_nonopt && last_nonopt != optind) - exchange ((char **) argv); - else if (last_nonopt != optind) - first_nonopt = optind; - - /* Skip any additional non-options - and extend the range of non-options previously skipped. */ - - while (optind < argc && NONOPTION_P) - optind++; - last_nonopt = optind; - } - - /* The special ARGV-element `--' means premature end of options. - Skip it like a null option, - then exchange with previous non-options as if it were an option, - then skip everything else like a non-option. */ - - if (optind != argc && !strcmp (argv[optind], "--")) - { - optind++; - - if (first_nonopt != last_nonopt && last_nonopt != optind) - exchange ((char **) argv); - else if (first_nonopt == last_nonopt) - first_nonopt = optind; - last_nonopt = argc; - - optind = argc; - } - - /* If we have done all the ARGV-elements, stop the scan - and back over any non-options that we skipped and permuted. */ - - if (optind == argc) - { - /* Set the next-arg-index to point at the non-options - that we previously skipped, so the caller will digest them. */ - if (first_nonopt != last_nonopt) - optind = first_nonopt; - return -1; - } - - /* If we have come to a non-option and did not permute it, - either stop the scan or describe it to the caller and pass it by. */ - - if (NONOPTION_P) - { - if (ordering == REQUIRE_ORDER) - return -1; - optarg = argv[optind++]; - return 1; - } - - /* We have found another option-ARGV-element. - Skip the initial punctuation. */ - - nextchar = (argv[optind] + 1 - + (longopts != NULL && argv[optind][1] == '-')); - } - - /* Decode the current option-ARGV-element. */ - - /* Check whether the ARGV-element is a long option. - - If long_only and the ARGV-element has the form "-f", where f is - a valid short option, don't consider it an abbreviated form of - a long option that starts with f. Otherwise there would be no - way to give the -f short option. - - On the other hand, if there's a long option "fubar" and - the ARGV-element is "-fu", do consider that an abbreviation of - the long option, just like "--fu", and not "-f" with arg "u". - - This distinction seems to be the most useful approach. */ - - if (longopts != NULL - && (argv[optind][1] == '-' - || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1]))))) - { - char *nameend; - const struct option *p; - const struct option *pfound = NULL; - int exact = 0; - int ambig = 0; - int indfound = -1; - int option_index; - - for (nameend = nextchar; *nameend && *nameend != '='; nameend++) - /* Do nothing. */ ; - - /* Test all long options for either exact match - or abbreviated matches. */ - for (p = longopts, option_index = 0; p->name; p++, option_index++) - if (!strncmp (p->name, nextchar, nameend - nextchar)) - { - if ((unsigned int) (nameend - nextchar) - == (unsigned int) strlen (p->name)) - { - /* Exact match found. */ - pfound = p; - indfound = option_index; - exact = 1; - break; - } - else if (pfound == NULL) - { - /* First nonexact match found. */ - pfound = p; - indfound = option_index; - } - else if (long_only - || pfound->has_arg != p->has_arg - || pfound->flag != p->flag - || pfound->val != p->val) - /* Second or later nonexact match found. */ - ambig = 1; - } - - if (ambig && !exact) - { - if (print_errors) - fprintf (stderr, _("%s: option `%s' is ambiguous\n"), - argv[0], argv[optind]); - nextchar += strlen (nextchar); - optind++; - optopt = 0; - return '?'; - } - - if (pfound != NULL) - { - option_index = indfound; - optind++; - if (*nameend) - { - /* Don't test has_arg with >, because some C compilers don't - allow it to be used on enums. */ - if (pfound->has_arg) - optarg = nameend + 1; - else - { - if (print_errors) - { - if (argv[optind - 1][1] == '-') - /* --option */ - fprintf (stderr, - _("%s: option `--%s' doesn't allow an argument\n"), - argv[0], pfound->name); - else - /* +option or -option */ - fprintf (stderr, - _("%s: option `%c%s' doesn't allow an argument\n"), - argv[0], argv[optind - 1][0], pfound->name); - } - - nextchar += strlen (nextchar); - - optopt = pfound->val; - return '?'; - } - } - else if (pfound->has_arg == 1) - { - if (optind < argc) - optarg = argv[optind++]; - else - { - if (print_errors) - fprintf (stderr, - _("%s: option `%s' requires an argument\n"), - argv[0], argv[optind - 1]); - nextchar += strlen (nextchar); - optopt = pfound->val; - return optstring[0] == ':' ? ':' : '?'; - } - } - nextchar += strlen (nextchar); - if (longind != NULL) - *longind = option_index; - if (pfound->flag) - { - *(pfound->flag) = pfound->val; - return 0; - } - return pfound->val; - } - - /* Can't find it as a long option. If this is not getopt_long_only, - or the option starts with '--' or is not a valid short - option, then it's an error. - Otherwise interpret it as a short option. */ - if (!long_only || argv[optind][1] == '-' - || my_index (optstring, *nextchar) == NULL) - { - if (print_errors) - { - if (argv[optind][1] == '-') - /* --option */ - fprintf (stderr, _("%s: unrecognized option `--%s'\n"), - argv[0], nextchar); - else - /* +option or -option */ - fprintf (stderr, _("%s: unrecognized option `%c%s'\n"), - argv[0], argv[optind][0], nextchar); - } - nextchar = (char *) ""; - optind++; - optopt = 0; - return '?'; - } - } - - /* Look at and handle the next short option-character. */ - - { - char c = *nextchar++; - char *temp = my_index (optstring, c); - - /* Increment `optind' when we start to process its last character. */ - if (*nextchar == '\0') - ++optind; - - if (temp == NULL || c == ':') - { - if (print_errors) - { - if (posixly_correct) - /* 1003.2 specifies the format of this message. */ - fprintf (stderr, _("%s: illegal option -- %c\n"), - argv[0], c); - else - fprintf (stderr, _("%s: invalid option -- %c\n"), - argv[0], c); - } - optopt = c; - return '?'; - } - /* Convenience. Treat POSIX -W foo same as long option --foo */ - if (temp[0] == 'W' && temp[1] == ';') - { - char *nameend; - const struct option *p; - const struct option *pfound = NULL; - int exact = 0; - int ambig = 0; - int indfound = 0; - int option_index; - - /* This is an option that requires an argument. */ - if (*nextchar != '\0') - { - optarg = nextchar; - /* If we end this ARGV-element by taking the rest as an arg, - we must advance to the next element now. */ - optind++; - } - else if (optind == argc) - { - if (print_errors) - { - /* 1003.2 specifies the format of this message. */ - fprintf (stderr, _("%s: option requires an argument -- %c\n"), - argv[0], c); - } - optopt = c; - if (optstring[0] == ':') - c = ':'; - else - c = '?'; - return c; - } - else - /* We already incremented `optind' once; - increment it again when taking next ARGV-elt as argument. */ - optarg = argv[optind++]; - - /* optarg is now the argument, see if it's in the - table of longopts. */ - - for (nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++) - /* Do nothing. */ ; - - /* Test all long options for either exact match - or abbreviated matches. */ - for (p = longopts, option_index = 0; p->name; p++, option_index++) - if (!strncmp (p->name, nextchar, nameend - nextchar)) - { - if ((unsigned int) (nameend - nextchar) == strlen (p->name)) - { - /* Exact match found. */ - pfound = p; - indfound = option_index; - exact = 1; - break; - } - else if (pfound == NULL) - { - /* First nonexact match found. */ - pfound = p; - indfound = option_index; - } - else - /* Second or later nonexact match found. */ - ambig = 1; - } - if (ambig && !exact) - { - if (print_errors) - fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"), - argv[0], argv[optind]); - nextchar += strlen (nextchar); - optind++; - return '?'; - } - if (pfound != NULL) - { - option_index = indfound; - if (*nameend) - { - /* Don't test has_arg with >, because some C compilers don't - allow it to be used on enums. */ - if (pfound->has_arg) - optarg = nameend + 1; - else - { - if (print_errors) - fprintf (stderr, _("\ - %s: option `-W %s' doesn't allow an argument\n"), - argv[0], pfound->name); - - nextchar += strlen (nextchar); - return '?'; - } - } - else if (pfound->has_arg == 1) - { - if (optind < argc) - optarg = argv[optind++]; - else - { - if (print_errors) - fprintf (stderr, - _("%s: option `%s' requires an argument\n"), - argv[0], argv[optind - 1]); - nextchar += strlen (nextchar); - return optstring[0] == ':' ? ':' : '?'; - } - } - nextchar += strlen (nextchar); - if (longind != NULL) - *longind = option_index; - if (pfound->flag) - { - *(pfound->flag) = pfound->val; - return 0; - } - return pfound->val; - } - nextchar = NULL; - return 'W'; /* Let the application handle it. */ - } - if (temp[1] == ':') - { - if (temp[2] == ':') - { - /* This is an option that accepts an argument optionally. */ - if (*nextchar != '\0') - { - optarg = nextchar; - optind++; - } - else - optarg = NULL; - nextchar = NULL; - } - else - { - /* This is an option that requires an argument. */ - if (*nextchar != '\0') - { - optarg = nextchar; - /* If we end this ARGV-element by taking the rest as an arg, - we must advance to the next element now. */ - optind++; - } - else if (optind == argc) - { - if (print_errors) - { - /* 1003.2 specifies the format of this message. */ - fprintf (stderr, - _("%s: option requires an argument -- %c\n"), - argv[0], c); - } - optopt = c; - if (optstring[0] == ':') - c = ':'; - else - c = '?'; - } - else - /* We already incremented `optind' once; - increment it again when taking next ARGV-elt as argument. */ - optarg = argv[optind++]; - nextchar = NULL; - } - } - return c; - } -} - -int -getopt (argc, argv, optstring) - int argc; - char *const *argv; - const char *optstring; -{ - return _getopt_internal (argc, argv, optstring, - (const struct option *) 0, - (int *) 0, - 0); -} - -#endif /* Not ELIDE_CODE. */ - -#ifdef TEST - -/* Compile with -DTEST to make an executable for use in testing - the above definition of `getopt'. */ - -int -main (argc, argv) - int argc; - char **argv; -{ - int c; - int digit_optind = 0; - - while (1) - { - int this_option_optind = optind ? optind : 1; - - c = getopt (argc, argv, "abc:d:0123456789"); - if (c == -1) - break; - - switch (c) - { - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - if (digit_optind != 0 && digit_optind != this_option_optind) - printf ("digits occur in two different argv-elements.\n"); - digit_optind = this_option_optind; - printf ("option %c\n", c); - break; - - case 'a': - printf ("option a\n"); - break; - - case 'b': - printf ("option b\n"); - break; - - case 'c': - printf ("option c with value `%s'\n", optarg); - break; - - case '?': - break; - - default: - printf ("?? getopt returned character code 0%o ??\n", c); - } - } - - if (optind < argc) - { - printf ("non-option ARGV-elements: "); - while (optind < argc) - printf ("%s ", argv[optind++]); - printf ("\n"); - } - - exit (0); -} - -#endif /* TEST */ diff --git a/utils/getopt/getopt.h b/utils/getopt/getopt.h deleted file mode 100644 index a1b8dd6..0000000 --- a/utils/getopt/getopt.h +++ /dev/null @@ -1,180 +0,0 @@ -/* Declarations for getopt. - Copyright (C) 1989-1994, 1996-1999, 2001 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _GETOPT_H - -#ifndef __need_getopt -# define _GETOPT_H 1 -#endif - -/* If __GNU_LIBRARY__ is not already defined, either we are being used - standalone, or this is the first header included in the source file. - If we are being used with glibc, we need to include , but - that does not exist if we are standalone. So: if __GNU_LIBRARY__ is - not defined, include , which will pull in for us - if it's from glibc. (Why ctype.h? It's guaranteed to exist and it - doesn't flood the namespace with stuff the way some other headers do.) */ -#if !defined __GNU_LIBRARY__ -# include -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -/* For communication from `getopt' to the caller. - When `getopt' finds an option that takes an argument, - the argument value is returned here. - Also, when `ordering' is RETURN_IN_ORDER, - each non-option ARGV-element is returned here. */ - -extern char *optarg; - -/* Index in ARGV of the next element to be scanned. - This is used for communication to and from the caller - and for communication between successive calls to `getopt'. - - On entry to `getopt', zero means this is the first call; initialize. - - When `getopt' returns -1, this is the index of the first of the - non-option elements that the caller should itself scan. - - Otherwise, `optind' communicates from one call to the next - how much of ARGV has been scanned so far. */ - -extern int optind; - -/* Callers store zero here to inhibit the error message `getopt' prints - for unrecognized options. */ - -extern int opterr; - -/* Set to an option character which was unrecognized. */ - -extern int optopt; - -#ifndef __need_getopt -/* Describe the long-named options requested by the application. - The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector - of `struct option' terminated by an element containing a name which is - zero. - - The field `has_arg' is: - no_argument (or 0) if the option does not take an argument, - required_argument (or 1) if the option requires an argument, - optional_argument (or 2) if the option takes an optional argument. - - If the field `flag' is not NULL, it points to a variable that is set - to the value given in the field `val' when the option is found, but - left unchanged if the option is not found. - - To have a long-named option do something other than set an `int' to - a compiled-in constant, such as set a value from `optarg', set the - option's `flag' field to zero and its `val' field to a nonzero - value (the equivalent single-letter option character, if there is - one). For long options that have a zero `flag' field, `getopt' - returns the contents of the `val' field. */ - -struct option -{ -# if (defined __STDC__ && __STDC__) || defined __cplusplus - const char *name; -# else - char *name; -# endif - /* has_arg can't be an enum because some compilers complain about - type mismatches in all the code that assumes it is an int. */ - int has_arg; - int *flag; - int val; -}; - -/* Names for the values of the `has_arg' field of `struct option'. */ - -# define no_argument 0 -# define required_argument 1 -# define optional_argument 2 -#endif /* need getopt */ - - -/* Get definitions and prototypes for functions to process the - arguments in ARGV (ARGC of them, minus the program name) for - options given in OPTS. - - Return the option character from OPTS just read. Return -1 when - there are no more options. For unrecognized options, or options - missing arguments, `optopt' is set to the option letter, and '?' is - returned. - - The OPTS string is a list of characters which are recognized option - letters, optionally followed by colons, specifying that that letter - takes an argument, to be placed in `optarg'. - - If a letter in OPTS is followed by two colons, its argument is - optional. This behavior is specific to the GNU `getopt'. - - The argument `--' causes premature termination of argument - scanning, explicitly telling `getopt' that there are no more - options. - - If OPTS begins with `--', then non-option arguments are treated as - arguments to the option '\0'. This behavior is specific to the GNU - `getopt'. */ - -#if (defined __STDC__ && __STDC__) || defined __cplusplus -# ifdef __GNU_LIBRARY__ -/* Many other libraries have conflicting prototypes for getopt, with - differences in the consts, in stdlib.h. To avoid compilation - errors, only prototype getopt for the GNU C library. */ -extern int getopt (int __argc, char *const *__argv, const char *__shortopts); -# else /* not __GNU_LIBRARY__ */ -extern int getopt (); -# endif /* __GNU_LIBRARY__ */ - -# ifndef __need_getopt -extern int getopt_long (int __argc, char *const *__argv, const char *__shortopts, - const struct option *__longopts, int *__longind); -extern int getopt_long_only (int __argc, char *const *__argv, - const char *__shortopts, - const struct option *__longopts, int *__longind); - -/* Internal only. Users should not call this directly. */ -extern int _getopt_internal (int __argc, char *const *__argv, - const char *__shortopts, - const struct option *__longopts, int *__longind, - int __long_only); -# endif -#else /* not __STDC__ */ -extern int getopt (); -# ifndef __need_getopt -extern int getopt_long (); -extern int getopt_long_only (); - -extern int _getopt_internal (); -# endif -#endif /* __STDC__ */ - -#ifdef __cplusplus -} -#endif - -/* Make sure we later can get all the definitions and declarations. */ -#undef __need_getopt - -#endif /* getopt.h */ diff --git a/utils/make.mk b/utils/make.mk deleted file mode 100644 index aef23d6..0000000 --- a/utils/make.mk +++ /dev/null @@ -1,15 +0,0 @@ -DIR=utils - -SRC_UTILS += $(wildcard $(DIR)/*.c) -SRC_UTILS_PRE += $(wildcard $(DIR)/convenience/*.c) -OBJ_UTILS += $(SRC_UTILS:.c=) -OBJ_UTILS_PRE += $(SRC_UTILS_PRE:.c=.o) -LDFLAGS_UTILS = -pthread -lr820t -lm -L. - -$(DIR)-pre: $(OBJ_UTILS_PRE) - -$(DIR)/convenience/%.o: $(DIR)/convenience/%.c - $(CC) $(CFLAGS) $(INCLUDE) -c $< -o $(BUILD_DIR)$@ - -$(DIR)/%: $(DIR)/%.c - $(CC) $(CFLAGS) $(INCLUDE) $(BUILD_DIR)$(OBJ_UTILS_PRE) $< -o $(BUILD_DIR)$@ $(LDFLAGS_UTILS) diff --git a/utils/rtl_adsb.c b/utils/rtl_adsb.c deleted file mode 100644 index 7aea8dd..0000000 --- a/utils/rtl_adsb.c +++ /dev/null @@ -1,507 +0,0 @@ -/* - * rtl-sdr, turns your Realtek RTL2832 based DVB dongle into a SDR receiver - * Copyright (C) 2012 by Steve Markgraf - * Copyright (C) 2012 by Hoernchen - * Copyright (C) 2012 by Kyle Keen - * Copyright (C) 2012 by Youssef Touil - * Copyright (C) 2012 by Ian Gilmour - * - * 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 . - */ - - -#include -#include -#include -#include -#include -#include - -#ifndef _WIN32 -#include -#else -#include -#include -#include -#include "getopt/getopt.h" -#endif - -#include -#include - -#include "rtl-sdr.h" -#include "convenience/convenience.h" - -#ifdef _WIN32 -#define sleep Sleep -#if defined(_MSC_VER) && (_MSC_VER < 1800) -#define round(x) (x > 0.0 ? floor(x + 0.5): ceil(x - 0.5)) -#endif -#endif - -#define ADSB_RATE 2000000 -#define ADSB_FREQ 1090000000 -#define DEFAULT_ASYNC_BUF_NUMBER 12 -#define DEFAULT_BUF_LENGTH (16 * 16384) -#define AUTO_GAIN -100 - -#define MESSAGEGO 253 -#define OVERWRITE 254 -#define BADSAMPLE 255 - -static pthread_t demod_thread; -static pthread_cond_t ready; -static pthread_mutex_t ready_m; -static volatile int do_exit = 0; -static rtlsdr_dev_t *dev = NULL; - -uint16_t squares[256]; - -/* todo, bundle these up in a struct */ -uint8_t *buffer; /* also abused for uint16_t */ -int verbose_output = 0; -int short_output = 0; -int quality = 10; -int allowed_errors = 5; -FILE *file; -int adsb_frame[14]; -#define preamble_len 16 -#define long_frame 112 -#define short_frame 56 - -/* signals are not threadsafe by default */ -#define safe_cond_signal(n, m) pthread_mutex_lock(m); pthread_cond_signal(n); pthread_mutex_unlock(m) -#define safe_cond_wait(n, m) pthread_mutex_lock(m); pthread_cond_wait(n, m); pthread_mutex_unlock(m) - -void usage(void) -{ - fprintf(stderr, - "rtl_adsb, a simple ADS-B decoder\n\n" - "Use:\trtl_adsb [-R] [-g gain] [-p ppm] [output file]\n" - "\t[-d device_index (default: 0)]\n" - "\t[-V verbove output (default: off)]\n" - "\t[-S show short frames (default: off)]\n" - "\t[-Q quality (0: no sanity checks, 0.5: half bit, 1: one bit (default), 2: two bits)]\n" - "\t[-e allowed_errors (default: 5)]\n" - "\t[-g tuner_gain (default: automatic)]\n" - "\t[-p ppm_error (default: 0)]\n" - "\t[-T enable bias-T on GPIO PIN 0 (works for rtl-sdr.com v3 dongles)]\n" - "\tfilename (a '-' dumps samples to stdout)\n" - "\t (omitting the filename also uses stdout)\n\n" - "Streaming with netcat:\n" - "\trtl_adsb | netcat -lp 8080\n" - "\twhile true; do rtl_adsb | nc -lp 8080; done\n" - "Streaming with socat:\n" - "\trtl_adsb | socat -u - TCP4:sdrsharp.com:47806\n" - "\n"); - exit(1); -} - -#ifdef _WIN32 -BOOL WINAPI -sighandler(int signum) -{ - if (CTRL_C_EVENT == signum) { - fprintf(stderr, "Signal caught, exiting!\n"); - do_exit = 1; - rtlsdr_cancel_async(dev); - return TRUE; - } - return FALSE; -} -#else -static void sighandler(int signum) -{ - fprintf(stderr, "Signal caught, exiting!\n"); - do_exit = 1; - rtlsdr_cancel_async(dev); -} -#endif - -void display(int *frame, int len) -{ - int i, df; - if (!short_output && len <= short_frame) { - return;} - df = (frame[0] >> 3) & 0x1f; - if (quality == 0 && !(df==11 || df==17 || df==18 || df==19)) { - return;} - fprintf(file, "*"); - for (i=0; i<((len+7)/8); i++) { - fprintf(file, "%02x", frame[i]);} - fprintf(file, ";\r\n"); - if (!verbose_output) { - return;} - fprintf(file, "DF=%i CA=%i\n", df, frame[0] & 0x07); - fprintf(file, "ICAO Address=%06x\n", frame[1] << 16 | frame[2] << 8 | frame[3]); - if (len <= short_frame) { - return;} - fprintf(file, "PI=0x%06x\n", frame[11] << 16 | frame[12] << 8 | frame[13]); - fprintf(file, "Type Code=%i S.Type/Ant.=%x\n", (frame[4] >> 3) & 0x1f, frame[4] & 0x07); - fprintf(file, "--------------\n"); -} - -int abs8(int x) -/* do not subtract 127 from the raw iq, this handles it */ -{ - if (x >= 127) { - return x - 127;} - return 127 - x; -} - -void squares_precompute(void) -/* equiv to abs(x-128) ^ 2 */ -{ - int i, j; - // todo, check if this LUT is actually any faster - for (i=0; i<256; i++) { - j = abs8(i); - squares[i] = (uint16_t)(j*j); - } -} - -int magnitute(uint8_t *buf, int len) -/* takes i/q, changes buf in place (16 bit), returns new len (16 bit) */ -{ - int i; - uint16_t *m; - for (i=0; i b; - bit = c > d; - - if (quality == 0) { - return bit;} - - if (quality == 5) { - if ( bit && bit_p && b > c) { - return BADSAMPLE;} - if (!bit && !bit_p && b < c) { - return BADSAMPLE;} - return bit; - } - - if (quality == 10) { - if ( bit && bit_p && c > b) { - return 1;} - if ( bit && !bit_p && d < b) { - return 1;} - if (!bit && bit_p && d > b) { - return 0;} - if (!bit && !bit_p && c < b) { - return 0;} - return BADSAMPLE; - } - - if ( bit && bit_p && c > b && d < a) { - return 1;} - if ( bit && !bit_p && c > a && d < b) { - return 1;} - if (!bit && bit_p && c < a && d > b) { - return 0;} - if (!bit && !bit_p && c < b && d > a) { - return 0;} - return BADSAMPLE; -} - -static inline uint16_t min16(uint16_t a, uint16_t b) -{ - return ab ? a : b; -} - -static inline int preamble(uint16_t *buf, int i) -/* returns 0/1 for preamble at index i */ -{ - int i2; - uint16_t low = 0; - uint16_t high = 65535; - for (i2=0; i2 allowed_errors) { - buf[i2] = BADSAMPLE; - break; - } else { - bit = a > b; - /* these don't have to match the bit */ - a = 0; - b = 65535; - } - } - buf[i] = buf[i+1] = OVERWRITE; - buf[i2] = bit; - } - } -} - -void messages(uint16_t *buf, int len) -{ - int i, data_i, index, shift, frame_len; - // todo, allow wrap across buffers - for (i=0; i 1) { - continue;} - frame_len = long_frame; - data_i = 0; - for (index=0; index<14; index++) { - adsb_frame[index] = 0;} - for(; i