+int l1ctl_tx_echo_req(struct osmocom_ms *ms, unsigned int len)
+{
+ struct msgb *msg;
+ uint8_t *data;
+ unsigned int i;
+
+ msg = osmo_l1_alloc(L1CTL_ECHO_REQ);
+ if (!msg)
+ return -1;
+
+ data = msgb_put(msg, len);
+ for (i = 0; i < len; i++)
+ data[i] = i % 8;
+
+ return osmo_send_l1(ms, msg);
+}
+
+/* Transmit L1CTL_PM_REQ */
+int l1ctl_tx_pm_req_range(struct osmocom_ms *ms, uint16_t arfcn_from,
+ uint16_t arfcn_to)
+{
+ struct msgb *msg;
+ struct l1ctl_pm_req *pm;
+
+ msg = osmo_l1_alloc(L1CTL_PM_REQ);
+ if (!msg)
+ return -1;
+
+ printf("Tx PM Req (%u-%u)\n", arfcn_from, arfcn_to);
+ pm = (struct l1ctl_pm_req *) msgb_put(msg, sizeof(*pm));
+ pm->type = 1;
+ pm->range.band_arfcn_from = htons(arfcn_from);
+ pm->range.band_arfcn_to = htons(arfcn_to);
+
+ return osmo_send_l1(ms, msg);
+}
+
+/* Receive L1CTL_RESET */
+static int rx_l1_reset(struct osmocom_ms *ms)
+{
+ printf("Layer1 Reset.\n");
+ dispatch_signal(SS_L1CTL, S_L1CTL_RESET, ms);
+
+ return 0;
+}
+
+/* Receive L1CTL_PM_RESP */
+static int rx_l1_pm_resp(struct osmocom_ms *ms, struct msgb *msg)
+{
+ struct l1ctl_pm_resp *pmr;
+
+ for (pmr = (struct l1ctl_pm_resp *) msg->l1h;
+ (uint8_t *) pmr < msg->tail; pmr++) {
+ struct osmobb_meas_res mr;
+ DEBUGP(DL1C, "PM MEAS: ARFCN: %4u RxLev: %3d %3d\n",
+ ntohs(pmr->band_arfcn), pmr->pm[0], pmr->pm[1]);
+ mr.band_arfcn = ntohs(pmr->band_arfcn);
+ mr.rx_lev = (pmr->pm[0] + pmr->pm[1]) / 2;
+ mr.ms = ms;
+ dispatch_signal(SS_L1CTL, S_L1CTL_PM_RES, &mr);
+ }
+ return 0;
+}
+