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#include <osmocom/core/application.h>
#include <osmocom/core/logging.h>
#include <osmocom/core/bits.h>
#include <osmocom/trau/trau_sync.h>
static void frame_out_cb(void *user_data, const ubit_t *bits, unsigned int num_bits)
{
char *str = user_data;
printf("demux_bits_cb '%s': %s\n", str, osmo_ubit_dump(bits, num_bits));
}
static const uint8_t sync_pattern[] = {
0x00, 0x00, 0x80, 0x00, 0x80, 0x00, 0x80, 0x00,
0x80, 0x00, 0x80, 0x00, 0x80, 0x00, 0x80, 0x00,
0x80, 0x00, 0x80, 0x00, 0x80, 0x00, 0x80, 0x00,
0x80, 0x00, 0x80, 0x00, 0x80, 0x00, 0x80, 0x00,
0x80, 0x00, 0x80, 0x00, 0x80, 0x00, 0x80, 0x00,
};
#define ASSERT_STATE(fi, x) OSMO_ASSERT(!strcmp(osmo_fsm_inst_state_name(fi), x))
static void test_body(void)
{
struct osmo_fsm_inst *fi = osmo_trau_sync_alloc(NULL, "test", frame_out_cb, OSMO_TRAU_SYNCP_16_FR_EFR, "test");
OSMO_ASSERT(fi);
printf("\n==> %s\n", __func__);
ubit_t bits[40*8];
/* send some invalid data */
memset(bits, 0, sizeof(bits));
osmo_trau_sync_rx_ubits(fi, bits, sizeof(bits));
osmo_trau_sync_rx_ubits(fi, bits, 23);
/* first valid frame */
osmo_pbit2ubit(bits, sync_pattern, sizeof(sync_pattern)*8);
osmo_trau_sync_rx_ubits(fi, bits, sizeof(bits));
ASSERT_STATE(fi, "FRAME_ALIGNED");
/* second valid frame */
osmo_trau_sync_rx_ubits(fi, bits, sizeof(bits));
ASSERT_STATE(fi, "FRAME_ALIGNED");
/* send wrong frame */
memset(bits, 1, sizeof(bits));
osmo_trau_sync_rx_ubits(fi, bits, sizeof(bits));
ASSERT_STATE(fi, "FRAME_ALIGNED");
/* intersperse a valid frame */
osmo_pbit2ubit(bits, sync_pattern, sizeof(sync_pattern)*8);
osmo_trau_sync_rx_ubits(fi, bits, sizeof(bits));
/* second wrong frame - but not consecutive */
memset(bits, 1, sizeof(bits));
osmo_trau_sync_rx_ubits(fi, bits, sizeof(bits));
ASSERT_STATE(fi, "FRAME_ALIGNED");
/* third wrong frame - second consecutive */
osmo_trau_sync_rx_ubits(fi, bits, sizeof(bits));
ASSERT_STATE(fi, "FRAME_ALIGNED");
/* only from third consecutive invalid frame onwards we should loose alignment */
osmo_trau_sync_rx_ubits(fi, bits, sizeof(bits));
ASSERT_STATE(fi, "FRAME_ALIGNMENT_LOST");
}
static const struct log_info_cat default_categories[] = {
};
const struct log_info log_info = {
.cat = default_categories,
.num_cat = ARRAY_SIZE(default_categories),
};
int main(int argc, char **argv)
{
osmo_init_logging2(NULL, NULL);
log_set_use_color(osmo_stderr_target, 0);
osmo_fsm_log_addr(false);
log_set_print_filename2(osmo_stderr_target, LOG_FILENAME_NONE);
test_body();
}
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