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GOLAY: draft voice implementation by Andreas Evesberg

This commit is contained in:
Vasyl Samoilov 2023-09-19 18:45:15 +03:00
parent a949470ec3
commit 42a898d3e4
1 changed files with 15 additions and 3 deletions
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18
src/golay/golay.c
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@ -240,6 +240,7 @@ static const uint16_t preamble_values[] = {
};
static const uint32_t start_code = 713;
static const uint32_t activation_code = 2563;
/* Rep. 900-2 Table VI */
static const uint16_t word1s[50] = {
@ -660,9 +661,20 @@ static int queue_batch(gsc_t *gsc, const char *address, int force_type, const ch
}
}
/* encode comma after message and store */
PDEBUG(DGOLAY, DEBUG_DEBUG, "Encoding 'comma' sequence after message.\n");
queue_comma(gsc, 121 * 8, 1);
if (type == TYPE_VOICE) {
/* encode activation code and store */
PDEBUG(DGOLAY, DEBUG_DEBUG, "Encoding activation code.\n");
golay = calc_golay(activation_code);
queue_comma(gsc, 28, golay & 1);
queue_dup(gsc, golay, 23);
golay ^= 0x7fffff;
queue_bit(gsc, (golay & 1) ^ 1);
queue_dup(gsc, golay, 23);
} else {
/* encode comma after message and store */
PDEBUG(DGOLAY, DEBUG_DEBUG, "Encoding 'comma' sequence after message.\n");
queue_comma(gsc, 121 * 8, 1);
}
/* check overflow */
if (gsc->bit_overflow) {