From: Beni Lev <beni.lev@xxxxxxxxx>
With this command, RSSI signal can be controlled.
Due to restrictions in kernel, only values in the range of [-30, -50]
can be used.
The command is implemented by changing the TX power.
Signed-off-by: Beni Lev <beni.lev@xxxxxxxxx>
---
tests/hwsim/hwsim_utils.py | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/tests/hwsim/hwsim_utils.py b/tests/hwsim/hwsim_utils.py
index 1fca4a2..ccac31e 100644
--- a/tests/hwsim/hwsim_utils.py
+++ b/tests/hwsim/hwsim_utils.py
@@ -197,3 +197,20 @@ def set_group_map(dev, val):
(res, data) = dev.cmd_execute(["echo", data, ">", fname], shell=True)
if res != 0:
raise Exception("Failed to set group map for %s" % phy)
+
+def set_rx_rssi(dev, val):
+ """
+ Configure signal strength when receiving transmitted frames.
+ HWSIM driver sets rssi to: tx power - 50
+ According to that set tx_power in order to get the desired rssi.
+ Valid RSSI range: -50 to -30.
+ """
+ tx_power = (val + 50) * 100
+ ifname = dev.get_driver_status_field("ifname")
+ (res, data) = dev.cmd_execute(['iw', ifname, 'set', 'txpower',
+ 'fixed', str(tx_power)])
+ if res != 0:
+ raise Exception("Failed to set RSSI to %d" % val)
+
+def reset_rx_rssi(dev):
+ set_rx_rssi(dev, -30)
--
2.7.4
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