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cisco-power: Add adjustment based on noise-floor.

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This commit is contained in:
Ben Greear
2020-01-08 16:45:04 -08:00
parent c16af1b998
commit 949c5970cf
1 changed files with 36 additions and 14 deletions
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50
lf_cisco_power.py
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@@ -62,6 +62,15 @@ outfile_xlsx = "cisco_power_results.xlsx"
upstream_port = "eth1" upstream_port = "eth1"
pf_dbm = 6 pf_dbm = 6
# Noise floor on ch 36 where we calibrated -54 path loss
nf_at_calibration = -105
# ath10k driver hard-codes noise-floor to -95 when calculating RSSI
# RSSI = NF + reported_power
# Shift RSSI by difference in actual vs calibrated noise-floor since driver hard-codes
# the noise floor.
# rssi_adjust = (current_nf - nf_at_calibration)
def usage(): def usage():
print("$0 used connect to controller:") print("$0 used connect to controller:")
print("-a|--ap: AP to act upon") print("-a|--ap: AP to act upon")
@@ -274,10 +283,6 @@ def main():
worksheet.set_row(0, 45) # Set height worksheet.set_row(0, 45) # Set height
worksheet.set_column(0, 0, 10) # Set width worksheet.set_column(0, 0, 10) # Set width
worksheet.set_column(8, 8, 15) # Set width
worksheet.set_column(10, 10, 10) # Set width
worksheet.set_column(23, 23, 10) # Set width
worksheet.set_column(24, 24, 100) # Set width
col = 0 col = 0
row = 0 row = 0
@@ -288,10 +293,15 @@ def main():
worksheet.write(row, col, 'Tx\nPower', dtan_bold); col += 1 worksheet.write(row, col, 'Tx\nPower', dtan_bold); col += 1
worksheet.write(row, col, 'Allowed\nPer\nPath', dtan_bold); col += 1 worksheet.write(row, col, 'Allowed\nPer\nPath', dtan_bold); col += 1
worksheet.write(row, col, 'Cabling\nPathloss', dtan_bold); col += 1 worksheet.write(row, col, 'Cabling\nPathloss', dtan_bold); col += 1
worksheet.write(row, col, 'Noise\n1', dpeach_bold); col += 1 worksheet.write(row, col, 'Noise\n', dpeach_bold); col += 1
worksheet.write(row, col, 'Last\nMCS\n1', dpeach_bold); col += 1 worksheet.write(row, col, 'Noise\nAdjust\n(vs -105)', dpeach_bold); col += 1
worksheet.write(row, col, 'Beacon\nRSSI\n1', dpeach_bold); col += 1
worksheet.write(row, col, 'Combined\nRSSI\n1', dpeach_bold); col += 1 worksheet.set_column(col, col, 15) # Set width
worksheet.write(row, col, 'Last\nMCS\n', dpeach_bold); col += 1
worksheet.write(row, col, 'Beacon\nRSSI\n', dpeach_bold); col += 1
worksheet.set_column(col, col, 10) # Set width
worksheet.write(row, col, 'Combined\nRSSI\n', dpeach_bold); col += 1
worksheet.write(row, col, 'RSSI\n1', dpeach_bold); col += 1 worksheet.write(row, col, 'RSSI\n1', dpeach_bold); col += 1
worksheet.write(row, col, 'RSSI\n2', dpeach_bold); col += 1 worksheet.write(row, col, 'RSSI\n2', dpeach_bold); col += 1
worksheet.write(row, col, 'RSSI\n3', dpeach_bold); col += 1 worksheet.write(row, col, 'RSSI\n3', dpeach_bold); col += 1
@@ -304,7 +314,9 @@ def main():
worksheet.write(row, col, 'Offset\n2', dyel_bold); col += 1 worksheet.write(row, col, 'Offset\n2', dyel_bold); col += 1
worksheet.write(row, col, 'Offset\n3', dyel_bold); col += 1 worksheet.write(row, col, 'Offset\n3', dyel_bold); col += 1
worksheet.write(row, col, 'Offset\n4', dyel_bold); col += 1 worksheet.write(row, col, 'Offset\n4', dyel_bold); col += 1
worksheet.set_column(col, col, 10) # Set width
worksheet.write(row, col, "PASS /\nFAIL\n( += 1-%s dBm)"%(pf_dbm), dgreen_bold); col += 1 worksheet.write(row, col, "PASS /\nFAIL\n( += 1-%s dBm)"%(pf_dbm), dgreen_bold); col += 1
worksheet.set_column(col, col, 100) # Set width
worksheet.write(row, col, 'Warnings and Errors', dgreen_bold_left); col += 1 worksheet.write(row, col, 'Warnings and Errors', dgreen_bold_left); col += 1
row += 1 row += 1
@@ -568,6 +580,7 @@ def main():
_nss = None _nss = None
_noise = None _noise = None
_rxrate = None _rxrate = None
_noise_bare = None
for line in pss.splitlines(): for line in pss.splitlines():
m = re.search('AP:\s+(.*)', line) m = re.search('AP:\s+(.*)', line)
@@ -588,22 +601,30 @@ def main():
m = re.search('Noise:\s+(.*)', line) m = re.search('Noise:\s+(.*)', line)
if (m != None): if (m != None):
_noise = m.group(1) _noise = m.group(1)
m = re.search('Noise:\s+(.*)dBm', line)
if (m != None):
_noise_bare = m.group(1)
m = re.search('RX-Rate:\s+(.*)', line) m = re.search('RX-Rate:\s+(.*)', line)
if (m != None): if (m != None):
_rxrate = m.group(1) _rxrate = m.group(1)
pi = int(args.pathloss) rssi_adj = 0
calc_dbm = int(sig) + pi if (_noise_bare != None):
calc_ant1 = int(ants[0]) + pi _noise_i = int(_noise_bare)
rssi_adj = (_noise_i - nf_at_calibration)
pi = int(args.pathloss)
calc_dbm = int(sig) + pi + rssi_adj
calc_ant1 = int(ants[0]) + pi + rssi_adj
calc_ant2 = 0 calc_ant2 = 0
calc_ant3 = 0 calc_ant3 = 0
calc_ant4 = 0 calc_ant4 = 0
if (len(ants) > 1): if (len(ants) > 1):
calc_ant2 = int(ants[1]) + pi calc_ant2 = int(ants[1]) + pi + rssi_adj
if (len(ants) > 2): if (len(ants) > 2):
calc_ant3 = int(ants[2]) + pi calc_ant3 = int(ants[2]) + pi + rssi_adj
if (len(ants) > 3): if (len(ants) > 3):
calc_ant4 = int(ants[3]) + pi calc_ant4 = int(ants[3]) + pi + rssi_adj
diff_a1 = "" diff_a1 = ""
diff_a2 = "" diff_a2 = ""
@@ -681,6 +702,7 @@ def main():
worksheet.write(row, col, allowed_per_path, center_tan); col += 1 worksheet.write(row, col, allowed_per_path, center_tan); col += 1
worksheet.write(row, col, args.pathloss, center_tan); col += 1 worksheet.write(row, col, args.pathloss, center_tan); col += 1
worksheet.write(row, col, _noise, center_tan); col += 1 worksheet.write(row, col, _noise, center_tan); col += 1
worksheet.write(row, col, rssi_adj, center_tan); col += 1
worksheet.write(row, col, _rxrate, center_tan); col += 1 worksheet.write(row, col, _rxrate, center_tan); col += 1
worksheet.write(row, col, beacon_sig, center_tan); col += 1 worksheet.write(row, col, beacon_sig, center_tan); col += 1
worksheet.write(row, col, sig, center_tan); col += 1 worksheet.write(row, col, sig, center_tan); col += 1