--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cmu200/rfanalyzer.c	Sat May 27 02:38:28 2017 +0000
@@ -0,0 +1,76 @@
+/*
+ * This module implements the RF analyzer functionality
+ * for VCXO and Tx power level calibration support.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include "mode.h"
+#include "band.h"
+
+extern int cmu200_rf_port;
+
+extern char *client_cmd_fields[];
+extern int client_cmd_nfields;
+
+extern int current_mode;
+extern struct band *current_band;
+
+extern char instrument_response[];
+
+cmd_rfan_setup()
+{
+	int rc;
+	unsigned arfcn;
+	char cmdstr[32];
+
+	if (client_cmd_nfields != 3) {
+		send_socket_response("-Wrong number of arguments\n");
+		return(0);
+	}
+	stop_signal_gen();
+	current_mode = OP_MODE_UNDEF;
+	rc = find_named_band(client_cmd_fields[1]);
+	if (rc < 0) {
+		send_socket_response("-Invalid band argument\n");
+		return(0);
+	}
+	arfcn = atoi(client_cmd_fields[2]);
+	if (verify_arfcn(arfcn, 0, 0) < 0) {
+		send_socket_response("-Invalid ARFCN\n");
+		return(0);
+	}
+	sprintf(cmdstr, "*SEC %d\n", current_band->secaddr);
+	send_scpi_cmd(cmdstr);
+	sprintf(cmdstr, "INP RF%d\n", cmu200_rf_port);
+	send_scpi_cmd(cmdstr);
+	sprintf(cmdstr, "RFAN:CHAN %uCH\n", arfcn);
+	send_scpi_cmd(cmdstr);
+	send_scpi_cmd("RFAN:TSEQ GSM5\n");
+	current_mode = OP_MODE_GSM_RFAN;
+	send_socket_response("+OK\n");
+	return(0);
+}
+
+cmd_freq_meas()
+{
+	char *resp_fields[11];
+	char client_resp[128];
+
+	if (current_mode != OP_MODE_GSM_RFAN) {
+		send_socket_response("-Wrong mode\n");
+		return(0);
+	}
+	send_scpi_cmd("READ:MOD?\n");
+	collect_instr_response();
+	if (parse_commasep_response(resp_fields, 11) < 0) {
+		send_socket_response
+			("-CMU200 response has wrong number of fields\n");
+		return(0);
+	}
+	sprintf(client_resp, "+ %s\n", resp_fields[7]);
+	send_socket_response(client_resp);
+	return(0);
+}