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