trx_toolkit: support setting artificial delay for TRXC

Change-Id: Idb1ef445bc14a6312f08a83ecacc3a938b0e1d70
Related: OS#5245

src/target/trx_toolkit/ctrl_if.py

@@ -23,6 +23,7 @@
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 import logging as log
+import time
 
 from udp_link import UDPLink
 
@@ -31,6 +32,9 @@ class CTRLInterface(UDPLink):
 		UDPLink.__init__(self, *udp_link_args)
 		log.debug("Init TRXC interface (%s)" % self.desc_link())
 
+		# Do not delay RSP messages by default
+		self.rsp_delay_ms = 0
+
 	def handle_rx(self):
 		# Read data from socket
 		data, remote = self.sock.recvfrom(128)
@@ -86,6 +90,9 @@ class CTRLInterface(UDPLink):
 
 		# Add the response signature, and join back to string
 		response = "RSP " + " ".join(request) + "\0"
+		# If configured, delay sending the RSP message
+		if self.rsp_delay_ms > 0:
+			time.sleep(self.rsp_delay_ms / 1000.0)
 		# Now we have something like "RSP TXTUNE 0 941600"
 		self.sendto(response, remote)
 

src/target/trx_toolkit/fake_trx.py

@@ -374,6 +374,15 @@ class FakeTRX(Transceiver):
 			self.burst_drop_period = period
 			return 0
 
+		# Artificial delay for the TRXC interface
+		# Syntax: CMD FAKE_TRXC_DELAY <DELAY_MS>
+		elif self.ctrl_if.verify_cmd(request, "FAKE_TRXC_DELAY", 1):
+			log.debug("(%s) Recv FAKE_TRXC_DELAY cmd", self)
+
+			self.ctrl_if.rsp_delay_ms = int(request[1])
+			log.info("(%s) Artificial TRXC delay set to %d",
+				 self, self.ctrl_if.rsp_delay_ms)
+
 		# Unhandled command
 		return None