Harald Welte | 1389e86 | 2017-06-18 18:16:02 +0300 | [diff] [blame] | 1 | #include <stdio.h> |
| 2 | #include <string.h> |
| 3 | #include <stdlib.h> |
| 4 | #include <osmocom/core/prbs.h> |
| 5 | |
| 6 | static void dump_bits(const ubit_t *bits, unsigned int num_bits) |
| 7 | { |
| 8 | unsigned int i; |
| 9 | |
| 10 | for (i = 0; i < num_bits; i++) { |
| 11 | if (bits[i]) |
| 12 | fputc('1', stdout); |
| 13 | else |
| 14 | fputc('0', stdout); |
| 15 | } |
| 16 | fputc('\n',stdout); |
| 17 | } |
| 18 | |
| 19 | static void test_prbs(const struct osmo_prbs *prbs) |
| 20 | { |
| 21 | struct osmo_prbs_state st; |
| 22 | unsigned int i; |
| 23 | |
| 24 | printf("Testing PRBS sequence generation '%s'\n", prbs->name); |
| 25 | osmo_prbs_state_init(&st, prbs); |
| 26 | |
| 27 | /* 2 lines */ |
| 28 | for (i = 0; i < 2; i++) { |
| 29 | unsigned int seq_len = (1 << prbs->len)-1; |
| 30 | ubit_t bits[seq_len]; |
| 31 | memset(bits, 0, sizeof(bits)); |
| 32 | osmo_prbs_get_ubits(bits, sizeof(bits), &st); |
| 33 | dump_bits(bits, sizeof(bits)); |
| 34 | } |
| 35 | |
| 36 | printf("\n"); |
| 37 | } |
| 38 | |
| 39 | int main(int argc, char **argv) |
| 40 | { |
| 41 | test_prbs(&osmo_prbs7); |
| 42 | test_prbs(&osmo_prbs9); |
| 43 | test_prbs(&osmo_prbs11); |
| 44 | test_prbs(&osmo_prbs15); |
| 45 | |
| 46 | exit(0); |
| 47 | } |