void run_in_analysis_mode(int verbosity_level) {
unsigned char bytearray[ANALYZEBYTECOUNT]; // Explicitly declare as unsigned char because depending on compiler, char may be unsigned or signed
int prvsamp;
sleep(1);
printf("\nEfergy Power Monitor Decoder - Running in analysis mode using verbosity level %d\n\n", verbosity_level);
analysis_wavecenter = 0;
while( !feof(stdin) ) {
// Look for a valid Efergy Preamble sequence which we'll define as
// a sequence of at least MIN_PEAMBLE_SIZE positive and negative or negative and positive pulses. eg 50N+50P or 50P+50N
int negative_preamble_count=0;
int positive_preamble_count=0;
prvsamp = 0;
while ( !feof(stdin) ) {
int cursamp = (int16_t) (fgetc(stdin) | fgetc(stdin)<<8);
// Check for preamble
if ((prvsamp >= analysis_wavecenter) && (cursamp >= analysis_wavecenter)) {
positive_preamble_count++;
} else if ((prvsamp < analysis_wavecenter) && (cursamp < analysis_wavecenter)) {
negative_preamble_count++;
} else if ((prvsamp >= analysis_wavecenter) && (cursamp < analysis_wavecenter)) {
if ((positive_preamble_count > MIN_POSITIVE_PREAMBLE_SAMPLES) &&
(negative_preamble_count > MIN_NEGATIVE_PREAMBLE_SAMPLES))
break;
negative_preamble_count=0;
} else if ((prvsamp < analysis_wavecenter) && (cursamp >= analysis_wavecenter)) {
if ((positive_preamble_count > MIN_POSITIVE_PREAMBLE_SAMPLES) &&
(negative_preamble_count > MIN_NEGATIVE_PREAMBLE_SAMPLES))
break;
positive_preamble_count=0;
}
prvsamp = cursamp;
} // end of find preamble while loop
sample_store_index=0;
while( !feof(stdin) ) {
int cursamp = (int16_t) (fgetc(stdin) | fgetc(stdin)<<8);
sample_storage[sample_store_index] = cursamp;
if (sample_store_index < (SAMPLE_STORE_SIZE-1))
sample_store_index++;
else {
analyze_efergy_message(verbosity_level);
break;
}
} // Frame processing while
} // outermost while
exit(0);
}
void main (int argc, char**argv)
{
int debug_level = 0;
// Give rtl_fm program some time to get initialized so its startup messages don't interleave with ours
sleep(1);
if ((argc == 2) && (strncmp(argv[1], "-h", 2) == 0)) {
printf("\nUsage: %s - Normal mode\n", argv[0]);
printf(" %s <filename> - Normal mode plus log samples to output file\n", argv[0]);
printf(" %s -d [1,2,3,4] - Set debug/verbosity. Default level 0 has minimum output\n", argv[0]);
exit(0);
} else if ((argc == 3) && (strncmp(argv[1], "-d", 2) == 0)) {
debug_level = strtol(argv[2], NULL, 0);
if ((debug_level < 1) || (debug_level > 4)) {
fprintf(stderr, "\nDebug level (-d option) must be between 1 and 4\n");
exit(EXIT_FAILURE);
}
} else if ((argc == 2) && (strcmp(argv[1], "-d") == 0))
debug_level = 3;
else if (argc == 2) {
//fp = fopen(argv[1], "a"); // Log file opened in append mode to avoid destroying data
samplecount = 0; // Reset sample counter
loggingok = 1;
/*if (fp == NULL) {
fprintf(stderr, "\nFailed to open log file!\n");
exit(EXIT_FAILURE);
}*/
} else {
loggingok = 0;
}
if (debug_level > 0)
printf("\nEfergy Power Monitor Decoder - (debug level %d)\n\n", debug_level);
else
printf("\nEfergy Energy Monitor Decoder\n\n");
int prvsamp;
analysis_wavecenter = 0;
while ( !feof(stdin) ) {
// Look for a valid Efergy Preamble sequence which we'll define as
// a sequence of at least MIN_PEAMBLE_SIZE positive and negative or negative and positive pulses. eg 50N+50P or 50P+50N
int negative_preamble_count = 0;
int positive_preamble_count = 0;
prvsamp = 0;
while ( !feof(stdin) ) {
int cursamp = (int16_t) (fgetc(stdin) | fgetc(stdin) << 8);
// Check for preamble
if ((prvsamp >= analysis_wavecenter) && (cursamp >= analysis_wavecenter)) {
positive_preamble_count++;
} else if ((prvsamp < analysis_wavecenter) && (cursamp < analysis_wavecenter)) {
negative_preamble_count++;
} else if ((prvsamp >= analysis_wavecenter) && (cursamp < analysis_wavecenter)) {
if ((positive_preamble_count > MIN_POSITIVE_PREAMBLE_SAMPLES) &&
(negative_preamble_count > MIN_NEGATIVE_PREAMBLE_SAMPLES))
break;
negative_preamble_count = 0;
} else if ((prvsamp < analysis_wavecenter) && (cursamp >= analysis_wavecenter)) {
if ((positive_preamble_count > MIN_POSITIVE_PREAMBLE_SAMPLES) &&
(negative_preamble_count > MIN_NEGATIVE_PREAMBLE_SAMPLES))
break;
positive_preamble_count = 0;
}
prvsamp = cursamp;
} // end of find preamble while loop
sample_store_index = 0;
while ( !feof(stdin) ) {
int cursamp = (int16_t) (fgetc(stdin) | fgetc(stdin) << 8);
sample_storage[sample_store_index] = cursamp;
if (sample_store_index < (SAMPLE_STORE_SIZE - 1))
sample_store_index++;
else {
analyze_efergy_message(debug_level);
break;
}
} // Frame processing while
} // outermost while
if (loggingok) {
fclose(fp); // If rtl-fm gives EOF and program terminates, close file gracefully.
}
}
