|
1
|
#include <stdio.h>
|
|
2
|
#include <errno.h>
|
|
3
|
#include <string.h>
|
|
4
|
#include <stdint.h>
|
|
5
|
#include <osmocom/core/talloc.h>
|
|
6
|
#include <osmocom/core/utils.h>
|
|
7
|
|
|
8
|
unsigned int tch_f_fn_samples[] =
|
|
9
|
{ 1036987, 1036991, 1036995, 1037000, 1037004, 1037008, 1037013, 1037017,
|
|
10
|
1037021, 1037026, 1037030, 1037034, 1037039, 1037043, 1037047, 1037052,
|
|
11
|
1037056, 1037060, 1037065,
|
|
12
|
1037069, 1037073, 1037078, 1037082, 1037086, 1037091, 1037095, 1037099,
|
|
13
|
1037104, 1037108, 1037112,
|
|
14
|
1037117, 1037121, 1037125, 1037130, 1037134, 1037138, 1037143, 1037147,
|
|
15
|
1037151, 1037156, 1037160,
|
|
16
|
1037164, 1037169, 1037173, 1037177, 1037182, 1037186, 1037190, 1037195,
|
|
17
|
1037199, 1037203, 1037208,
|
|
18
|
1037212, 1037216, 1037221, 1037225, 1037229, 1037234, 1037238, 1037242,
|
|
19
|
1037247, 1037251, 1037255,
|
|
20
|
1037260, 1037264, 1037268, 1037273, 1037277, 1037281, 1037286, 1037290,
|
|
21
|
1037294
|
|
22
|
};
|
|
23
|
|
|
24
|
#define GSM_SUPERFRAME (26*51) /* 1326 TDMA frames */
|
|
25
|
#define GSM_HYPERFRAME (2048*GSM_SUPERFRAME) /* GSM_HYPERFRAME frames */
|
|
26
|
|
|
27
|
/* beginn, distance */
|
|
28
|
int8_t tch_f_fn_remap_table[3][2] = {
|
|
29
|
{3, 8},
|
|
30
|
{7, 7},
|
|
31
|
{11, 7},
|
|
32
|
};
|
|
33
|
|
|
34
|
void remap_fn(unsigned int fn)
|
|
35
|
{
|
|
36
|
uint8_t fn13;
|
|
37
|
uint8_t i;
|
|
38
|
uint8_t sub;
|
|
39
|
unsigned int fn_map;
|
|
40
|
|
|
41
|
fn13 = fn % 13;
|
|
42
|
|
|
43
|
for (i = 0; i < 2; i++) {
|
|
44
|
if (tch_f_fn_remap_table[i][0] == fn13)
|
|
45
|
sub = tch_f_fn_remap_table[i][1];
|
|
46
|
}
|
|
47
|
|
|
48
|
fn_map = (fn + GSM_HYPERFRAME - sub) % GSM_HYPERFRAME;
|
|
49
|
|
|
50
|
printf("fn=%u, fn104=%u, fn13=%u, sub=%u, fn_map=%u, fn_map104=%u\n",
|
|
51
|
fn, fn % 104, fn13, sub, fn_map, fn_map % 104);
|
|
52
|
}
|
|
53
|
|
|
54
|
int main(void)
|
|
55
|
{
|
|
56
|
unsigned int i;
|
|
57
|
|
|
58
|
printf("FN EXPERIMENT\n");
|
|
59
|
|
|
60
|
printf("GSM_HYPERFRAME=%u\n", GSM_HYPERFRAME);
|
|
61
|
|
|
62
|
for (i = 0; i < ARRAY_SIZE(tch_f_fn_samples); i++) {
|
|
63
|
remap_fn(tch_f_fn_samples[i]);
|
|
64
|
}
|
|
65
|
|
|
66
|
return 0;
|
|
67
|
}
|
