CI: add transfer test

Jenkinsfile

@@ -25,6 +25,8 @@ pipeline {
                     sh './ci-scripts/test-firmware-program.sh'
                 }
                 sh './ci-scripts/test-firmware-flash.sh'
+                sh 'python3 ci-scripts/test-transfer.py tx'
+                sh 'python3 ci-scripts/test-transfer.py rx'
             }
         }
     }

ci-scripts/test-transfer.py

@@ -0,0 +1,126 @@
+#!/usr/bin/python3
+import subprocess
+import time
+import sys
+
+EUT     = "RunningFromRAM"
+TESTER  = "0000000000000000325866e629a25623"
+
+
+def write_bytes():
+    tx_bytes = b'\x7f\x00\x59\x59\x00\x7f\xa7\x59\x81\x00\xa7\xa7\x00\x81\x59\xa7'
+    with open("/tmp/binary100", "wb") as bin_file:
+        for i in range(62500):  # 1MB file size
+            bin_file.write(tx_bytes)
+
+
+def capture_signal(sweep_range, tx_gain, rx_lna_gain, rx_vga_gain, freq=None,
+                   if_freq=None, lo_freq=None, image_reject=0):
+
+    test_type = sys.argv[1]
+    if test_type == "tx":
+        transmitter = EUT
+        receiver = TESTER
+    elif test_type == "rx":
+        transmitter = TESTER
+        receiver = EUT
+    else:
+        print(f"Invalid command-line argument: {test_type}. Use tx or rx")
+        sys.exit(1)
+
+    if if_freq == None:
+        transmit = subprocess.Popen(["host/build/hackrf-tools/src/hackrf_transfer",
+                                     "-d", transmitter, "-R", "-t", "/tmp/binary100",
+                                     "-a", "0", "-x", tx_gain, "-f", freq],
+                                    stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    else:
+        transmit = subprocess.Popen(["host/build/hackrf-tools/src/hackrf_transfer",
+                                     "-d", transmitter, "-R", "-t", "/tmp/binary100",
+                                     "-a", "0", "-x", tx_gain, "-i", if_freq,
+                                     "-o", lo_freq, "-m", image_reject],
+                                     stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+
+    time.sleep(1)
+    sweep = subprocess.Popen(["host/build/hackrf-tools/src/hackrf_sweep",
+                              "-d", receiver, "-N", "2", "-w", "333333",
+                              "-f", sweep_range, "-a", "0", "-l", rx_lna_gain,
+                              "-g", rx_vga_gain],
+                             stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    sweep.wait()
+    transmit.terminate()
+    transmit.wait()
+
+    # parse the hackrf_sweep output
+    data, stderr = sweep.communicate()
+    data = data.decode("utf-8")
+    data = data.split("\n")
+    print(data[4])
+    data = data[4]  # Note: using data from the 2nd sweep until issue #1230 is resolved.
+    data = data.split(", ")
+    data = data[6:21]
+    bins = [float(bin) for bin in data]
+    return bins
+
+
+def check_signal(freq, bins):
+    signal = bins.pop(1)
+    signal_threshold = -25
+    max_power = -10
+    result = 0
+
+    if signal < signal_threshold:
+        print(f"Signal not strong enough at {freq} MHz")
+        result = 1
+    elif signal > max_power:
+        print(f"Received signal exceeded maximum power at {freq} MHz")
+        result = 1
+
+    for bin in bins:
+        if bin > max_power or bin > signal:
+            print(f"Non-target bin power exceeded max power threshold at {freq} MHz")
+            result = 1
+            break
+
+    return result
+
+
+def main():
+    write_bytes()
+    tester_hub_on = subprocess.Popen(["usbhub", "--disable-i2c", "--hub", "624C",
+                                      "power", "state", "--port", "2", "--reset"])
+    tester_hub_on.wait()
+    time.sleep(1)
+    eut_clkout_on       = subprocess.Popen(["host/build/hackrf-tools/src/hackrf_clock",
+                                            "-o", "1", "-d", EUT])
+    tester_clkout_off   = subprocess.Popen(["host/build/hackrf-tools/src/hackrf_clock",
+                                            "-o", "0", "-d", TESTER])
+    eut_clkout_on.wait()
+    tester_clkout_off.wait()
+
+    _9_5Mhz_data    = capture_signal(sweep_range="9:29", tx_gain="38", rx_lna_gain="16",
+                                     rx_vga_gain="16", if_freq="2628250000",
+                                     lo_freq="2620000000", image_reject="1")
+    _915_5Mhz_data  = capture_signal(sweep_range="915:935", tx_gain="38", rx_lna_gain="16",
+                                     rx_vga_gain="16", if_freq="2540750000",
+                                     lo_freq="3455000000", image_reject="1")
+    _2665_5Mhz_data = capture_signal(sweep_range="2665:2685", tx_gain="26", rx_lna_gain="16",
+                                     rx_vga_gain="16", freq="2664250000")
+    _5999_5Mhz_data = capture_signal(sweep_range="5999:6019", tx_gain="37", rx_lna_gain="32",
+                                     rx_vga_gain="40", if_freq="2540750000",
+                                     lo_freq="3460000000", image_reject="2")
+
+    lp1_result  = check_signal(9.5, _9_5Mhz_data)
+    lp2_result  = check_signal(915.5, _915_5Mhz_data)
+    bp_result   = check_signal(2665.5, _2665_5Mhz_data)
+    hp_result   = check_signal(5999.5, _5999_5Mhz_data)
+    results     = [lp1_result, lp2_result, bp_result, hp_result]
+
+    if 1 in results:
+        sys.exit(1)
+    else:
+        sys.exit(0)
+
+
+if __name__ == "__main__":
+    main()
+