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#include <stdint.h>
#include <string.h>
#include <osmocom/core/bits.h>
#include "gsm0503_mapping.h"
void gsm0503_xcch_burst_unmap(sbit_t *iB, sbit_t *eB, sbit_t *hl, sbit_t *hn)
{
memcpy(iB, eB, 57);
memcpy(iB+57, eB+59, 57);
if (hl)
*hl = eB[57];
if (hn)
*hn = eB[58];
}
void gsm0503_xcch_burst_map(ubit_t *iB, ubit_t *eB, const ubit_t *hl,
const ubit_t *hn)
{
memcpy(eB, iB, 57);
memcpy(eB+59, iB+57, 57);
if (hl)
eB[57] = *hl;
if (hn)
eB[58] = *hn;
}
void gsm0503_tch_burst_unmap(sbit_t *iB, sbit_t *eB, sbit_t *h, int odd)
{
int i;
/* brainfuck: only copy even or odd bits */
if (iB) {
for (i=odd; i<57; i+=2)
iB[i] = eB[i];
for (i=58-odd; i<114; i+=2)
iB[i] = eB[i+2];
}
if (h) {
if (!odd)
*h = eB[58];
else
*h = eB[57];
}
}
void gsm0503_tch_burst_map(ubit_t *iB, ubit_t *eB, const ubit_t *h, int odd)
{
int i;
/* brainfuck: only copy even or odd bits */
if (eB) {
for (i=odd; i<57; i+=2)
eB[i] = iB[i];
for (i=58-odd; i<114; i+=2)
eB[i+2] = iB[i];
}
if (h) {
if (!odd)
eB[58] = *h;
else
eB[57] = *h;
}
}
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