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-rw-r--r--tests/amr/amr_test.c151
1 files changed, 151 insertions, 0 deletions
diff --git a/tests/amr/amr_test.c b/tests/amr/amr_test.c
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+/* (C) 2021 by sysmocom s.f.m.c. GmbH
+ * All Rights Reserved
+ *
+ * Author: Philipp Maier
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <osmo-bts/logging.h>
+#include <osmocom/core/utils.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include "../../src/osmo-bts-trx/sched_utils.h"
+
+struct amr_cmi_test_data {
+ /* Frame number that marks the beginning of the voice block */
+ uint32_t gsm_fn;
+ /* In uplink: True, when the voice block is a CMI block, false otherwise. */
+ /* In downlink: False, when the voice block is a CMI block, true otherwise. */
+ bool is_cmi;
+};
+
+/* The behavior of AHS in subslot 0 and AFS is the same */
+static const struct amr_cmi_test_data testvec_ahs_h0_and_afs[] = {
+ { 0, true },
+ { 4, false },
+ { 8, true },
+ { 13, false },
+ { 17, true },
+ { 21, false },
+ { 26, true },
+ { 30, false },
+ { 34, true },
+ { 39, false },
+ { 43, true },
+ { 47, false },
+ { 52, true },
+ { 56, false },
+ { 60, true },
+ { 65, false },
+ { 69, true },
+ { 73, false },
+ { 78, true },
+ { 82, false },
+ { 86, true },
+ { 91, false },
+ { 95, true },
+ { 99, false },
+};
+
+static const struct amr_cmi_test_data testvec_ahs_h1[] = {
+ { 1, true },
+ { 5, false },
+ { 9, true },
+ { 14, false },
+ { 18, true },
+ { 22, false },
+ { 27, true },
+ { 31, false },
+ { 35, true },
+ { 40, false },
+ { 44, true },
+ { 48, false },
+ { 53, true },
+ { 57, false },
+ { 61, true },
+ { 66, false },
+ { 70, true },
+ { 74, false },
+ { 79, true },
+ { 83, false },
+ { 87, true },
+ { 92, false },
+ { 96, true },
+ { 100, false },
+};
+
+static void test_amr_cmi_sched(void)
+{
+ unsigned int i;
+ bool res;
+
+ printf("AMR transmission phase (CMI) in relation to GSM FN:\n");
+
+ for (i = 0; i < ARRAY_SIZE(testvec_ahs_h0_and_afs); i++) {
+ res = ul_amr_fn_is_cmi(testvec_ahs_h0_and_afs[i].gsm_fn);
+ printf("Uplink, AMR AHS on HR subslot 0: fn_begin=%u, CMI=%u\n", testvec_ahs_h0_and_afs[i].gsm_fn, res);
+ OSMO_ASSERT(res == testvec_ahs_h0_and_afs[i].is_cmi);
+ }
+
+ printf("\n");
+
+ for (i = 0; i < ARRAY_SIZE(testvec_ahs_h0_and_afs); i++) {
+ res = dl_amr_fn_is_cmi(testvec_ahs_h0_and_afs[i].gsm_fn);
+ printf("Downlink, AMR AHS on HR subslot 0: fn_begin=%u, CMI=%u\n", testvec_ahs_h0_and_afs[i].gsm_fn, res);
+ OSMO_ASSERT(res == !testvec_ahs_h0_and_afs[i].is_cmi);
+ }
+
+ printf("\n");
+ printf("\n");
+
+ for (i = 0; i < ARRAY_SIZE(testvec_ahs_h1); i++) {
+ res = ul_amr_fn_is_cmi(testvec_ahs_h1[i].gsm_fn);
+ printf("Uplink, AMR AHS on HR subslot 1: fn_begin=%u, CMI=%u\n", testvec_ahs_h1[i].gsm_fn, res);
+ OSMO_ASSERT(res == testvec_ahs_h1[i].is_cmi);
+ }
+
+ printf("\n");
+
+ for (i = 0; i < ARRAY_SIZE(testvec_ahs_h1); i++) {
+ res = dl_amr_fn_is_cmi(testvec_ahs_h1[i].gsm_fn);
+ printf("Downlink, AMR AHS on HR subslot 1: fn_begin=%u, CMI=%u\n", testvec_ahs_h1[i].gsm_fn, res);
+ OSMO_ASSERT(res == !testvec_ahs_h1[i].is_cmi);
+ }
+
+ printf("\n");
+ printf("\n");
+
+ for (i = 0; i < ARRAY_SIZE(testvec_ahs_h0_and_afs); i++) {
+ res = ul_amr_fn_is_cmi(testvec_ahs_h0_and_afs[i].gsm_fn);
+ printf("Uplink, AMR AFS: fn_begin=%u, CMI=%u\n", testvec_ahs_h0_and_afs[i].gsm_fn, res);
+ OSMO_ASSERT(res == testvec_ahs_h0_and_afs[i].is_cmi);
+ }
+
+ printf("\n");
+
+ for (i = 0; i < ARRAY_SIZE(testvec_ahs_h0_and_afs); i++) {
+ res = dl_amr_fn_is_cmi(testvec_ahs_h0_and_afs[i].gsm_fn);
+ printf("Downlink, AMR AFS: fn_begin=%u, CMI=%u\n", testvec_ahs_h0_and_afs[i].gsm_fn, res);
+ OSMO_ASSERT(res == !testvec_ahs_h0_and_afs[i].is_cmi);
+ }
+}
+
+int main(int argc, char **argv)
+{
+
+ test_amr_cmi_sched();
+ return EXIT_SUCCESS;
+}