| #include <stdio.h> |
| #include <stdlib.h> |
| #include <stdint.h> |
| #include <unistd.h> |
| |
| #include <osmocom/core/bits.h> |
| #include <osmocom/isdn/v110.h> |
| |
| |
| static void test_ra1(enum osmo_v100_sync_ra1_rate rate) |
| { |
| int user_rate = osmo_v110_sync_ra1_get_user_data_rate(rate); |
| int user_data_chunk_bits; |
| struct osmo_v110_decoded_frame fr; |
| ubit_t user_bits[48]; |
| ubit_t bits[80]; |
| unsigned int i; |
| int rc; |
| |
| printf("\n======= User data rate %u\n", user_rate); |
| |
| user_data_chunk_bits = osmo_v110_sync_ra1_get_user_data_chunk_bitlen(rate); |
| OSMO_ASSERT(user_data_chunk_bits >= 0); |
| |
| /* we abuse the fact that ubit_t is 8bit so we can actually |
| * store integer values to clearly identify which bit ends up where */ |
| memset(user_bits, 0xFE, sizeof(user_bits)); |
| for (i = 0; i < user_data_chunk_bits; i++) |
| user_bits[i] = 101 + i; |
| |
| printf("user_bits: "); |
| for (i = 0; i < user_data_chunk_bits; i++) |
| printf("%03d ", user_bits[i]); |
| printf("\n"); |
| |
| /* generate the decoded v.110 frame */ |
| memset(&fr, 0, sizeof(fr)); |
| rc = osmo_v110_sync_ra1_user_to_ir(rate, &fr, user_bits, user_data_chunk_bits); |
| OSMO_ASSERT(rc == 0); |
| |
| /* run encoder and dump to stdout */ |
| memset(bits, 0xff, sizeof(bits)); |
| osmo_v110_encode_frame(bits, sizeof(bits), &fr); |
| printf("dumping %u encoded bits in V.110 frame:\n", user_data_chunk_bits); |
| osmo_v110_ubit_dump(stdout, bits, sizeof(bits)); |
| |
| /* run decoder on what we just encoded */ |
| memset(&fr, 0, sizeof(fr)); |
| osmo_v110_decode_frame(&fr, bits, sizeof(bits)); |
| printf("dumping re-decoded V.110 frame:\n"); |
| printf("E-bits: %s\n", osmo_hexdump(fr.e_bits, sizeof(fr.e_bits))); |
| printf("S-bits: %s\n", osmo_hexdump(fr.s_bits, sizeof(fr.s_bits))); |
| |
| /* re-encode and dump again 'expout' will match it. */ |
| memset(user_bits, 0xff, sizeof(user_bits)); |
| rc = osmo_v110_sync_ra1_ir_to_user(rate, user_bits, sizeof(user_bits), &fr); |
| if (rc != user_data_chunk_bits) { |
| fprintf(stderr, "ERROR: adapt_ir_to_user() returned %d, expected %u\n", rc, |
| user_data_chunk_bits); |
| exit(23); |
| } |
| fprintf(stdout, "re-decoded user bits: "); |
| for (i = 0; i < user_data_chunk_bits; i++) |
| printf("%03d ", user_bits[i]); |
| printf("\n"); |
| } |
| |
| |
| int main(int argc, char **argv) |
| { |
| for (int i = 0; i < _NUM_OSMO_V110_SYNC_RA1; i++) |
| test_ra1(i); |
| } |
| |