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edacs-fm-single.c
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edacs-fm-single.c
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/*-------------------------------------------------------------------------------
* EDACS-FM Single
* A program for decoding EDACS
*
* ASCII art generated by:
* https://fsymbols.com/generators/carty/
*
* Portions of this software originally from:
* https://github.com/sp5wwp/ledacs
* XTAL Labs
* 30 IV 2016
* Many thanks to SP5WWP for permission to use and modify this software
*
* Encoder/decoder for binary BCH codes in C (Version 3.1)
* Robert Morelos-Zaragoza
* 1994-7
*
* LWVMOBILE
* 2022-04 Version EDACS-FM Florida Man Edition
*-----------------------------------------------------------------------------*/
#define _GNU_SOURCE
#include <stdio.h>
#include <unistd.h>
#include <limits.h>
#include <string.h>
#include <stdlib.h>
#include <arpa/inet.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <fcntl.h>
#include <errno.h>
#include <time.h>
#include <ncurses.h>
#include <stdio_ext.h>
#include <math.h>
#include <netdb.h>
#include <sys/stat.h>
#include <pwd.h>
#include <termios.h>
#include <getopt.h>
#include <ctype.h>
#include <stdbool.h>
#include <locale.h>
#include "bch3.h" //BCH support
#define BSIZE 999
#define UDP_BUFLEN 5 //maximum UDP buffer length
#define SRV_IP "127.0.0.1" //IP
#define UDP_PORT 6020 //UDP port
#define SAMP_NUM (48 + 6 * 40) * 2 * 3 //EDACS96 288-bit cycle
#define SYNC_FRAME 0x555557125555 << (64 - 48) //EDACS96 synchronization frame (12*4=48bit)
#define SYNC_MASK 0xFFFFFFFFFFFF << (64 - 48) //EDACS96 synchronization frame mask
unsigned long long sync_timeout = 3; //making sync_timeout a user definable variable now, default 3 seconds
unsigned char samples[SAMP_NUM]; //8-bit samples from rtl_fm (or rtl_udp)
signed short int raw_stream[SAMP_NUM / 2]; //16-bit signed int samples
signed int AFC = 2400; //Auto Frequency Control -> DC offset
signed int min = SHRT_MAX, max = SHRT_MIN; //min and max sample values
signed short int avg_arr[SAMP_NUM / 2 / 3]; //array containing 16-bit samples
unsigned int avg_cnt = 0; //avg array index variable
unsigned long long sr_0 = 0; //64-bit shift registers for pushing decoded binary data
unsigned long long sr_1 = 0; //288/64=4.5
unsigned long long sr_2 = 0; //
unsigned long long sr_3 = 0; //
unsigned long long sr_4 = 0; //
unsigned long long vr = 0;
unsigned long long fr_1 = 0xFFFFFFFFFF; //40-bit shift registers for pushing decoded binary data
//unsigned long long fr_2 = 0; //each is a 40 bit message that repeats 3 times
//unsigned long long fr_3 = 0; //two messages per frame
unsigned long long fr_4 = 0xFFFFFFFFFF; //These are the human readable versions for debugging etc
//unsigned long long fr_5 = 0;
//unsigned long long fr_6 = 0;
//BCH stuff
long long int fr_1m = 0xFFFFFFF; //28-bit 7X message portion to pass to bch handler
long long int fr_1t = 0xFFFFFFFFFF; //40 bit return from BCH with poly attached
long long int fr_4m = 0xFFFFFFF; //28-bit 7X message portion to pass to bch handler
long long int fr_4t = 0xFFFFFFFFFF; //40 bit return from BCH with poly attached
double good = 1;
double bad = 1; //don't set as 0 so we won't accidentally divide by 0 and blow up the universe
double gbr = 1;
//end BCH stuff
unsigned short a_len = 4; //AFS allocation type
unsigned short f_len = 4; //bit lengths
unsigned short s_len = 3; //AFS bits default to 443 scheme by default if not specified
unsigned short a_mask = 0x0; //and corresponding masks, set to 0 by default or they will accumulate when shifting
unsigned short f_mask = 0x0; //
unsigned short s_mask = 0x0; //
unsigned short x_mask = 0x0;
unsigned short x_choice = 0;
unsigned long long afs = 0; //AFS 11-bit info
unsigned long long int patch_site = 0;
unsigned long long int site_id = 0;
unsigned long long int start_site_id = 0;
unsigned long long int tempsite_id = 999;
unsigned long long int tgroupx = 999;
signed long long int senderx = 0;
unsigned long long int groupx = 0;
signed long long int sourcep = 0;
signed long long int targetp = 0;
signed long long int patch_array[51][2];
signed long long kicked = 0;
signed long long int tsenderx = 0;
unsigned long long tafs = 999;
//call_matrix 32 columns (lcns) with rows for time of call, group/afs, sender, status and logged bit
unsigned long long int call_matrix[33][5]; //bump to 5 for logged bit
//group_matrix for groupname and mode
char * group_matrix[33][2];
char * mode_a;
char * mode_b;
int modecompare;
char * mode;
char * groupx_name;
char * site_name;
char * location_name;
unsigned char mt1 = 0x1F;
unsigned char mt2 = 0xF;
unsigned char mta = 0;
int adjust = 0; //next on the chopping block
int cyclecc = 0;
signed int ppm = 0;
unsigned int vcmd = 0xEE; //voice command variable set by argument
unsigned int idcmd = 0xFD;
unsigned int peercmd = 0xF88; //using for EA detection test
unsigned int netcmd = 0xF3; //using for Networked Test
unsigned char command = 0; //read from control channel
unsigned char lcn = 0;
unsigned char lcn_tally = 0;
unsigned char status = 0; //
unsigned char agency = 4, fleet = 4, subfleet = 3; // going to initialize with 4-4-3 scheme, most universal
short int active = 0; //0 for inactive/ready, 1 for active/busy
char * sitecsv;
char * groupcsv;
int rfgain = 0;
unsigned long long int last_sync_time = 0; //last received sync timestamp
unsigned char current_lcn = 0; //current LCN
unsigned long long int LCN_list[32]; //LCN list
unsigned char cc = 1;
unsigned char deny_num = 0;
unsigned int deny_total = 0;
signed int deny_flag = 0;
short int udeny = 0;
short int allow = 0;
unsigned long long int CC_LCN = 0;
unsigned long long int hanguptime = 0;
short int hangup = 0;
unsigned long long int resettime = 0;
unsigned long long int logtime = 0;
char * FM_banner[9] = {
" ",
" ███████╗██████╗ █████╗ █████╗ ██████╗ ███████╗███╗ ███╗ ██████╗",
" ██╔════╝██╔══██╗██╔══██╗██╔══██╗██╔════╝ ██╔════╝████╗ ████║ ███════╝",
" █████╗ ██║ ██║███████║██║ ╚═╝╚█████╗ ███ █████╗ ██╔████╔██║ █████╗",
" ██╔══╝ ██║ ██║██╔══██║██║ ██╗ ╚═══██╗ ██╔══╝ ██║╚██╔╝██║ ╚═══██╗",
" ███████╗██████╔╝██║ ██║╚█████╔╝██████╔╝ ██║ ██║ ╚═╝ ██║█████████╔╝",
" ╚══════╝╚═════╝ ╚═╝ ╚═╝ ╚════╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝╚════════╝ ",
};
signed int peer_counter = 0;
signed long long int peer_list[12];
signed long long int peer = 0;
unsigned long long int peer_lcn = 0;
//CLI options for Site Extra, Call Matrix, Patches, and Logging
short int S = 0; //Display Site Extra in printw area
short int C = 0; //Display Call Matrix in printw area
short int P = 0; //Display Patches in printw area
short int Q = 0; //Enable logging of peers and patches
short int L = 0; //Enable voice call logging
short int A = 0; //Enable Autodetection for EDACS Type
signed int debug = 0; //debug value for printing out status and data on different command codes, etc
int handle; //for UDP
unsigned short port = UDP_PORT;
char data[UDP_BUFLEN] = {
0
};
struct sockaddr_in address;
//--------------------------------------------
typedef struct key_value {
char siteN[20];
char location[20];
char lcn0N[50];
char lcn1N[50];
char lcn2N[50];
char lcn3N[50];
char lcn4N[50];
char lcn5N[50];
char lcn6N[50];
char lcn7N[50];
char lcn8N[50];
char lcn9N[50];
char lcn10N[50];
char lcn11N[50];
char lcn12N[50];
char lcn13N[50];
char lcn14N[50];
char lcn15N[50];
char lcn16N[50];
char lcn17N[50];
char lcn18N[50];
char lcn19N[50];
char lcn20N[50];
char lcn21N[50];
char lcn22N[50];
char lcn23N[50];
char lcn24N[50];
char lcn25N[50];
char lcn26N[50];
char lcn27N[50];
char lcn28N[50];
char lcn29N[50];
char lcn30N[50];
char lcn31N[50];
}
dict;
void loadLCN(int tsite_id, dict site_array[]) //load LCN frequencies from csv importer/struct
{
LCN_list[0] = atoi(site_array[tsite_id].lcn0N);
LCN_list[1] = atoi(site_array[tsite_id].lcn1N);
LCN_list[2] = atoi(site_array[tsite_id].lcn2N);
LCN_list[3] = atoi(site_array[tsite_id].lcn3N);
LCN_list[4] = atoi(site_array[tsite_id].lcn4N);
LCN_list[5] = atoi(site_array[tsite_id].lcn5N);
LCN_list[6] = atoi(site_array[tsite_id].lcn6N);
LCN_list[7] = atoi(site_array[tsite_id].lcn7N);
LCN_list[8] = atoi(site_array[tsite_id].lcn8N);
LCN_list[9] = atoi(site_array[tsite_id].lcn9N);
LCN_list[10] = atoi(site_array[tsite_id].lcn10N);
LCN_list[11] = atoi(site_array[tsite_id].lcn11N);
LCN_list[12] = atoi(site_array[tsite_id].lcn12N);
LCN_list[13] = atoi(site_array[tsite_id].lcn13N);
LCN_list[14] = atoi(site_array[tsite_id].lcn14N);
LCN_list[15] = atoi(site_array[tsite_id].lcn15N);
LCN_list[16] = atoi(site_array[tsite_id].lcn16N);
LCN_list[17] = atoi(site_array[tsite_id].lcn17N);
LCN_list[18] = atoi(site_array[tsite_id].lcn18N);
LCN_list[19] = atoi(site_array[tsite_id].lcn19N);
LCN_list[20] = atoi(site_array[tsite_id].lcn20N);
LCN_list[21] = atoi(site_array[tsite_id].lcn21N);
LCN_list[22] = atoi(site_array[tsite_id].lcn22N);
LCN_list[23] = atoi(site_array[tsite_id].lcn23N);
LCN_list[24] = atoi(site_array[tsite_id].lcn24N);
LCN_list[25] = atoi(site_array[tsite_id].lcn25N);
LCN_list[26] = atoi(site_array[tsite_id].lcn26N);
LCN_list[27] = atoi(site_array[tsite_id].lcn27N);
LCN_list[28] = atoi(site_array[tsite_id].lcn28N);
LCN_list[29] = atoi(site_array[tsite_id].lcn29N);
LCN_list[30] = atoi(site_array[tsite_id].lcn30N);
LCN_list[31] = atoi(site_array[tsite_id].lcn31N);
site_name = site_array[tsite_id].siteN;
location_name = site_array[tsite_id].location;
}
int csvImport() {
char filename[] = "site.csv";
strcpy(filename, sitecsv);
char buffer[BSIZE];
FILE * fp;
fp = fopen(filename, "r");
if (fp == NULL) {
printf("Unable to open file '%s'\n", filename);
exit(1);
}
int row_count = 0;
int field_count = 0;
dict site_array[9999]; //array to struct to store values
int tsite_id = site_id;
while (fgets(buffer, BSIZE, fp)) {
field_count = 0;
row_count++;
if (row_count == 1)
continue; //don't want labels
char * field = strtok(buffer, ","); //seperate by comma
int i = atoi(field); //field is seeing site id, make dict based on i value for site id, then cross reference later on for LCN
while (field) {
if (field_count == 0)
strcpy(site_array[i].siteN, field);
if (field_count == 1)
strcpy(site_array[i].location, field);
if (field_count == 2)
strcpy(site_array[i].lcn0N, field);
if (field_count == 3)
strcpy(site_array[i].lcn1N, field);
if (field_count == 4)
strcpy(site_array[i].lcn2N, field);
if (field_count == 5)
strcpy(site_array[i].lcn3N, field);
if (field_count == 6)
strcpy(site_array[i].lcn4N, field);
if (field_count == 7)
strcpy(site_array[i].lcn5N, field);
if (field_count == 8)
strcpy(site_array[i].lcn6N, field);
if (field_count == 9)
strcpy(site_array[i].lcn7N, field);
if (field_count == 10)
strcpy(site_array[i].lcn8N, field);
if (field_count == 11)
strcpy(site_array[i].lcn9N, field);
if (field_count == 12)
strcpy(site_array[i].lcn10N, field);
if (field_count == 13)
strcpy(site_array[i].lcn11N, field);
if (field_count == 14)
strcpy(site_array[i].lcn12N, field);
if (field_count == 15)
strcpy(site_array[i].lcn13N, field);
if (field_count == 16)
strcpy(site_array[i].lcn14N, field);
if (field_count == 17)
strcpy(site_array[i].lcn15N, field);
if (field_count == 18)
strcpy(site_array[i].lcn16N, field);
if (field_count == 19)
strcpy(site_array[i].lcn17N, field);
if (field_count == 20)
strcpy(site_array[i].lcn18N, field);
if (field_count == 21)
strcpy(site_array[i].lcn19N, field);
if (field_count == 22)
strcpy(site_array[i].lcn20N, field);
if (field_count == 23)
strcpy(site_array[i].lcn21N, field);
if (field_count == 24)
strcpy(site_array[i].lcn22N, field);
if (field_count == 25)
strcpy(site_array[i].lcn23N, field);
if (field_count == 26)
strcpy(site_array[i].lcn24N, field);
if (field_count == 27)
strcpy(site_array[i].lcn25N, field);
if (field_count == 28)
strcpy(site_array[i].lcn26N, field);
if (field_count == 29)
strcpy(site_array[i].lcn27N, field);
if (field_count == 30)
strcpy(site_array[i].lcn28N, field);
if (field_count == 31)
strcpy(site_array[i].lcn29N, field);
if (field_count == 32)
strcpy(site_array[i].lcn30N, field);
if (field_count == 33)
strcpy(site_array[i].lcn31N, field);
field = strtok(NULL, ",");
field_count++;
}
}
fclose(fp);
loadLCN(tsite_id, site_array);
return 0;
}
typedef struct key_v {
signed long long int groupNumber;
char groupMode[8];
char groupName[50];
}
groupinfo;
void loadGroupMatrix(unsigned char tlcn, signed long long int tgroup_id, groupinfo group_array[]) {
group_matrix[tlcn][0] = group_array[tgroup_id].groupName;
group_matrix[tlcn][1] = group_array[tgroup_id].groupMode;
groupx_name = group_array[tgroup_id].groupName;
mode = group_array[tgroup_id].groupMode;
}
signed long long int csvGroupImport() {
char filename[] = "group.csv";
strcpy(filename, groupcsv);
char buffer[BSIZE];
FILE * fp;
fp = fopen(filename, "r");
if (fp == NULL) {
printf("Unable to open file '%s'\n", filename);
exit(1);
}
long long int row_count = 0;
int field_count = 0;
groupinfo group_array[67000]; //array to struct to store values
signed long long int tgroup_id2 = groupx;
unsigned char tlcn2 = lcn;
while (fgets(buffer, BSIZE, fp)) {
field_count = 0;
row_count++;
if (row_count == 1)
continue; //don't want labels
char * field = strtok(buffer, ","); //seperate by comma
signed long long int i = atoi(field); //field is seeing site id, make dict based on i value for site id, then cross reference later on for LCN
while (field) {
if (field_count == 0)
group_array[i].groupNumber = atoi(field);
if (field_count == 1)
strcpy(group_array[i].groupMode, field);
if (field_count == 2)
strcpy(group_array[i].groupName, field);
field = strtok(NULL, ",");
field_count++;
}
}
fclose(fp);
loadGroupMatrix(tlcn2, tgroup_id2, group_array);
return 0;
}
int init_udp() //UDP init
{
handle = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (handle <= 0) {
printf("Failed to create socket\n");
return 1;
}
printf("Sockets successfully initialized\n");
memset((char * ) & address, 0, sizeof(address));
address.sin_family = AF_INET;
address.sin_addr.s_addr = inet_addr(SRV_IP); //address of host
address.sin_port = htons(port);
return 0;
}
char * getTime(void) //get pretty hh:mm:ss timestamp
{
time_t t = time(NULL);
char * curr;
char * stamp = asctime(localtime( & t));
curr = strtok(stamp, " ");
curr = strtok(NULL, " ");
curr = strtok(NULL, " ");
curr = strtok(NULL, " ");
return curr;
}
char * getDate(void) {
char datename[32];
char * curr2;
struct tm * to;
time_t t;
t = time(NULL);
to = localtime( & t);
strftime(datename, sizeof(datename), "%Y-%m-%d", to);
curr2 = strtok(datename, " ");
return curr2;
}
//--------------------------------------------
void tune(unsigned long long int freq) //tuning to LCN freq
{
data[0] = 0;
data[1] = freq & 0xFF;
data[2] = (freq >> 8) & 0xFF;
data[3] = (freq >> 16) & 0xFF;
data[4] = (freq >> 24) & 0xFF;
sendto(handle, data, UDP_BUFLEN, 0, (const struct sockaddr * ) & address, sizeof(struct sockaddr_in));
}
void tuneCC(unsigned long long int ccfreq) //tuning to CC freq, only works with PyEDACS tuner, not rtl_udp
{
data[0] = 9;
data[1] = ccfreq & 0xFF;
data[2] = (ccfreq >> 8) & 0xFF;
data[3] = (ccfreq >> 16) & 0xFF;
data[4] = (ccfreq >> 24) & 0xFF;
sendto(handle, data, UDP_BUFLEN, 0, (const struct sockaddr * ) & address, sizeof(struct sockaddr_in));
}
//rework ppmAdjust just for initial ppm correction, and not for self adjustments, change argument to required and send data to pyEdacs, see gainSet
void ppmAdjust(unsigned long long int ccppm) //adjustments to CC PPM, only works with PyEDACS tuner, not rtl_fm/udp
{
data[0] = 7;
data[1] = ccppm & 0xFF;
data[2] = (ccppm >> 8) & 0xFF;
data[3] = (ccppm >> 16) & 0xFF;
data[4] = (ccppm >> 24) & 0xFF;
sendto(handle, data, UDP_BUFLEN, 0, (const struct sockaddr * ) & address, sizeof(struct sockaddr_in));
}
void squelchSet(unsigned long long int sq) //squelch
{
data[0] = 2;
data[1] = sq & 0xFF;
data[2] = (sq >> 8) & 0xFF;
data[3] = (sq >> 16) & 0xFF;
data[4] = (sq >> 24) & 0xFF;
sendto(handle, data, UDP_BUFLEN, 0, (const struct sockaddr * ) & address, sizeof(struct sockaddr_in));
}
void gainSet(int gain) //adjustments to RF Gain in PyEDACS tuner, may also function in rtl_udp
{
data[0] = 3; // 3 on rtl_udp is for new_gain, so maybe works with both, unsure yet, 8 is AGC mode
data[1] = gain & 0xFF;
data[2] = (gain >> 8) & 0xFF;
data[3] = (gain >> 16) & 0xFF;
data[4] = (gain >> 24) & 0xFF;
sendto(handle, data, UDP_BUFLEN, 0, (const struct sockaddr * ) & address, sizeof(struct sockaddr_in));
}
void FM() //Print a swanky ascii art banner
{
for (short int i = 0; i < 7; i++) {
printf("%s \n", FM_banner[i]);
}
}
//need to work this back into future release
void print_usage(char * name) {
printf("Usage:\n");
exit(EXIT_FAILURE);
}
bool ParseInputOptions(int argc, char ** argv) {
int c;
while (1) {
static struct option long_options[] = {
/* These options set a flag. */
//{"verbose", no_argument, &opt_verbose, 1},
/* These options don’t set a flag.
We distinguish them by their indices. */
{"Sync Timeout", required_argument,0,'t'},
{"Universal Denial", no_argument,0,'d'},
{"verbose", no_argument,0,'v'},
{"legacy", no_argument,0,'l'},
{"esk", no_argument,0,'e'},
{"ea", no_argument,0,'E'},
{"esk-ea", no_argument,0,'x'},
{"afs A bit", required_argument,0,'a'},
{"afs F bit", required_argument,0,'f'},
{"siteinfo", required_argument,0,'s'},
{"sitenumber", required_argument,0,'c'},
{"group", required_argument,0,'g'},
{"RF gain", required_argument,0,'r'},
{"ppm-auto-adjustments", no_argument,0,'p'},
{"Site Extra", no_argument,0,'S'},
{"Call Matrix", no_argument,0,'C'},
{"Patches", no_argument,0,'P'},
{"P Log", no_argument,0,'Q'},
{"Call Log", no_argument,0,'L'},
{"Autodetect", no_argument,0,'A'},
{0,0,0,0}
};
/* getopt_long stores the option index here. */
int option_index = 0;
c = getopt_long(argc, argv, "t: d v l e E x a:f:s:c:g:r:p S C P Q L A",
long_options, & option_index);
// warning: need to use : after required arguments, no colon for optional ones
// if a following option is encountered getopt_long returns this option as the argument in optarg
// instead of error, but if there is only one option with a missing arg then it returns an error.
//
/* Detect the end of the options. */
if (c == -1)
break;
switch (c) {
case 0:
/* If this option set a flag, do nothing else now. */
if (long_options[option_index].flag != 0)
break;
printf("option %s", long_options[option_index].name);
if (optarg)
printf(" with arg %s", optarg);
printf("\n");
break;
case 't':
sync_timeout = atol(optarg);
printf("Sync Timeout = [%lld] seconds\n", sync_timeout);
break;
case 'd':
udeny = 1;
printf("Universal Denial Mode Set - Only groups with mode [A] will be granted voice channel\n");
break;
case 'v':
debug = 0;
//printf("Verbosity Mode Enabled - Debug set to 3 \n");
break;
case 'x':
printf("Extended Addressing with ESK Mode Enabled \n");
x_mask = 0xA0; //XOR for ESK
idcmd = 0xFD;
vcmd = 0xB8; //not using commands anymore for EA, but correcting this anyways
x_choice = 1;
break;
case 'E':
printf("Extended Addressing Mode Enabled \n"); //Extended Addressing without ESK
x_mask = 0x0;
idcmd = 0xFD;
vcmd = 0xB8;
x_choice = 1;
break;
case 'e':
printf("ESK Mode Enabled \n");
x_mask = 0xA0; //XOR for ESK
idcmd = 0xFD;
vcmd = 0xEE;
x_choice = 2;
break;
case 'l':
printf("EDACS Standard Mode Enabled \n");
x_mask = 0x0; //no XOR for legacy
vcmd = 0xEE;
idcmd = 0xFD;
x_choice = 2;
break;
case 'a':
a_len = atol(optarg);
printf("Agency bit setting = [%d] bits\n", a_len);
break;
case 'f':
f_len = atol(optarg);
printf("Fleet bit setting = [%d] bits\n", f_len);
break;
case 's':
if (optarg[0] == '-') {
printf("Error: -%c: option requires an argument\n", c);
print_usage(argv[0]);
}
sitecsv = optarg;
printf("Site CSV File name = %s \n", sitecsv);
break;
case 'c':
start_site_id = atol(optarg);
printf("Site ID CC to Hunt For = [%lld] \n", start_site_id);
break;
case 'g':
if (optarg[0] == '-') {
printf("Error: -%c: option requires an argument\n", c);
print_usage(argv[0]);
}
groupcsv = optarg;
printf("Group CSV File name = %s \n", groupcsv);
break;
case 'r':
if (optarg[0] == '-') {
printf("Error: -%c: option requires an argument\n", c);
print_usage(argv[0]);
}
rfgain = atoi(optarg);
printf("RF Gain = %d \n", rfgain);
break;
case 'p':
adjust = 1;
printf("AFC/PPM auto adjust enabled - warning, highly temperamental \n");
break;
case 'S':
S = 1;
printf("Site Extra Display Enabled \n");
break;
case 'C':
C = 1;
printf("Call Matrix Display Enabled \n");
break;
case 'P':
P = 1;
printf("Patch Display Enabled \n");
break;
case 'Q':
Q = 1;
printf("Patch and Peers Logging Enabled \n");
break;
case 'L':
L = 1;
printf("Voice Call Logging Enabled \n");
break;
case 'A':
A = 1;
printf("Autodetect EDACS Type - Experimental \n");
printf("AFS set to 4-4-3 when using Autodetect \n");
break;
}
}
}
//--------------------------------------------MAIN--------------------------------------
int main(int argc, char ** argv) {
setlocale(LC_ALL, "");
FM();
read_p(); //Read m
generate_gf(); //Construct the Galois Field GF(2**m)
gen_poly(); //Compute the generator polynomial of BCH code
printf("Galois Field GF(2**m) Constructed. Generator Polynomial Computed.\n");
printf("40-28-6-2 BCH Scheme for Error Detection and Correction.\n");
cc = 0;
groupcsv = "group.csv";
sitecsv = "site.csv";
resettime = time(NULL);
logtime = time(NULL) - 540;
ParseInputOptions(argc, argv);
signed int avg = 0; //sample average
s_len = 11 - (a_len + f_len);
if (x_choice == 0){ //if x_choice value not set at start, set to automatic
A = 1; }
if (x_choice == 2 || A == 1) {
printf("Subfleet bit setting = [%X] bits \n", s_len);
for (unsigned short int i = 0; i < a_len; i++) //A
{
a_mask = a_mask << 1;
a_mask |= 1;
}
a_mask = a_mask << (11 - a_len);
printf("a_mask = [%X] \n", a_mask);
for (unsigned short int i = 0; i < f_len; i++) //F
{
f_mask = f_mask << 1;
f_mask |= 1;
}
f_mask = f_mask << s_len;
printf("f_mask = [%X] \n", f_mask);
for (unsigned short int i = 0; i < s_len; i++) //S
{
s_mask = s_mask << 1;
s_mask |= 1;
}
printf("s_mask = [%X] \n", s_mask);
}
init_udp();
sleep(1); //patience is a virtue
//if gain specified by user, then change gain in PyEDACS from default value
//squelchSet(5000);
//if (rfgain > 0) {
// gainSet(rfgain);
//}
//When using PyEDACS and changing site you want to monitor, this will set to a presumably empty channel so it won't be stuck on the last monitored channel
//if (start_site_id > 0) {
// tuneCC(850000000);
//}
last_sync_time = time(NULL); //set a sync_time here so we don't jump straight to no signal
for (int i = 0; i < SAMP_NUM / 2 / 3 - 1; i++) //zero array
{
avg_arr[i] = 0;
}
//let's get the party started
while (1) {
//printf("active = %d", active);
//printf("last_sync_time = %lld \n", last_sync_time);
//printf("start site id = %lld \n", start_site_id);
initscr(); //Initialize NCURSES screen window
start_color();
init_pair(1, COLOR_YELLOW, COLOR_BLACK); //Yellow/Amber for frame sync/control channel, NV style
init_pair(2, COLOR_RED, COLOR_BLACK); //Red for Terminated Calls
init_pair(3, COLOR_GREEN, COLOR_BLACK); //Green for Active Calls
init_pair(4, COLOR_CYAN, COLOR_BLACK); //Cyan for Site Extra and Patches
init_pair(5, COLOR_MAGENTA, COLOR_BLACK); //Magenta for no frame sync/signal
noecho();
cbreak();
//single dongle things
if (active == 1 && (sr_1 & 0xFFFFFFFFFF) == 0xAAAAAAAAAA){ //when tuned to voice channel and dot detection goes off, go back to CC
tune(LCN_list[CC_LCN - 1]);
active = 0;
current_lcn = 0;
hangup = 1;
last_sync_time = time(NULL); //set last_sync_time so doesn't try to tune with this and frame_sync loss
}
if (active == 1 && site_id > 0 && (time(NULL) - last_sync_time) > 30){ //go back to CC after 30 seconds (if no dot detection)
tune(LCN_list[CC_LCN - 1]);
active = 0;
current_lcn = 0;
hangup = 1;
last_sync_time = time(NULL); //set last_sync_time so doesn't try to tune with this and frame_sync loss
}
//end new single dongle things
//removed numerous things in frame sync loss to deal with tuning to VC, also changed a few tuning things to only tune the UDP dongle
if ( time(NULL) - last_sync_time > sync_timeout && active == 0) //Check to see if control channel is still there
{
squelchSet(0);
erase();
attron(COLOR_PAIR(5));
for (short int i = 0; i < 7; i++) {
printw("%s \n", FM_banner[i]);
}
attroff(COLOR_PAIR(5));
printw("Control Channel not found/lost. Timeout. Waiting...\n");
last_sync_time = time(NULL); //this one is still needed to allow time for frame sync to resume
//kicked = 0;
//targetp = 0;
//sourcep = 0;
//peer = 0;
//good = 1;
//bad = 1;
//gbr = 1; //"zero" out good bad and gbr
//active = 0; //disable to check behavior now that we are testing signal loss events, don't want leave channel open without dot detection
current_lcn = 0;
//reset log peers and patches when signal time out
/*
if (x_choice == 1 && patch_array[0][0] > 0 && Q == 1) { //check patch_array to see if anything is in it, otherwise, will keep logging blanks until signal regained
FILE * pFile;
pFile = fopen("pandp.log", "a");
fprintf(pFile, "%s %s SITE %3lld Signal Loss Logging \n", getDate(), getTime(), tempsite_id);
fprintf(pFile, "Peer Sites ");
for (short int i = 0; i < 12; i++) {
if (peer_list[i] > 0) {
fprintf(pFile, "[%lld]", peer_list[i]);
}
}
fprintf(pFile, "\n");
for (short int i = 0; i < 49; i++) {
if (patch_array[i][0] > 0) {
fprintf(pFile, "Patch Group #%2d [%5lld] to [%5lld]", i + 1, patch_array[i][1], patch_array[i][0]);
fprintf(pFile, "\n");
}
}
fclose(pFile);
}
*/
//end logging peers and patches before wipe
/*
for (short int i = 0; i < 12; i++) { //zero out peer_list
peer_list[i] = 0;
}
for (short int i = 0; i < 49; i++) { //zero out patch_array
patch_array[i][0] = 0;
patch_array[i][1] = 0;
}
*/
//patch_site = 0;
tempsite_id = 999;
//lcn_tally = 0;
//resettime = time(NULL);
logtime = time(NULL) - 540;
if (start_site_id == 0) {
site_id = 0;
site_name = "Searching";
location_name = "Searching";
}
//*/
if (start_site_id > 0) {
printw("Attemping to tune Site [%d] LCNs to find Control Channel\n", start_site_id);
site_id = start_site_id;
csvImport();
if (cyclecc > -1 && cyclecc < 31) { //cycle through a possibility of 32 LCN channels in the sites.csv file
if (LCN_list[cyclecc] > 1) {
tune(LCN_list[cyclecc]); //changed from tuneCC to tune for single dongle mode testing
printw("LCN Freq: [%d]", LCN_list[cyclecc]);
cyclecc = cyclecc + 1;
refresh();
sleep(2);
}
}
if (LCN_list[cyclecc] == 0) { //if no more frequencies in sites.csv, jump back to beginning of cycle
cyclecc = 0;
}
if (cyclecc > 31) { //if cyclecc exceeds 31, jump back to beginning, assuming there are 32 LCN channels specified
cyclecc = 0;
}
}
//*/
refresh();
}
read(0, samples, 3 * 2); //read 3 samples (6 unsigned chars)
raw_stream[0] = (signed short int)((samples[0 + 1] << 8) | (samples[0] & 0xFF));
raw_stream[1] = (signed short int)((samples[2 + 1] << 8) | (samples[2] & 0xFF));
raw_stream[2] = (signed short int)((samples[4 + 1] << 8) | (samples[4] & 0xFF));
avg = (raw_stream[0] + raw_stream[1] + raw_stream[2]) / 3; //
//AFC recomputing using averaged samples
avg_arr[avg_cnt] = avg;
avg_cnt++;
if (avg_cnt >= SAMP_NUM / 2 / 3 - 1) //reset after filling avg_array
{
avg_cnt = 0;
min = SHRT_MAX;
max = SHRT_MIN;
for (int i = 0; i < SAMP_NUM / 2 / 3 - 1; i++) //simple min/max detector
{
if (avg_arr[i] > max)
max = avg_arr[i];
if (avg_arr[i] < min)
min = avg_arr[i];
}
AFC = (min + max) / 2;
}
//--------------------------------------
//pushing data into shift registers
sr_0 = (sr_0 << 1) | (sr_1 >> 63);
sr_1 = (sr_1 << 1) | (sr_2 >> 63);
sr_2 = (sr_2 << 1) | (sr_3 >> 63);
sr_3 = (sr_3 << 1) | (sr_4 >> 63);
sr_4 = sr_4 << 1;
if (avg < AFC)
sr_4 |= 1;
//---------------------------------
if ((sr_0 & SYNC_MASK) == SYNC_FRAME) //extract data after receiving the sync frame
{
last_sync_time = time(NULL); //set sync_time right at start of frame
//put sr data in human readable/easier to work with fr 40 bit (10 hex) messages
//disabling all but fr_1 and fr_4 due to BCH enabled, no need for extra redundancy
//will leave these values here for future reference, or if needed
fr_1 = ((sr_0 & 0xFFFF) << 24) | ((sr_1 & 0xFFFFFF0000000000) >> 40);
//fr_2 = sr_1 & 0xFFFFFFFFFF;
//fr_3 = (sr_2 & 0xFFFFFFFFFF000000) >> 24;