From f3a08e49c0fe9ad4dd76152ab8f4fd9b2c21e81b Mon Sep 17 00:00:00 2001
From: Michael Plass <mplass@google.com>
Date: Tue, 8 Aug 2017 16:38:25 -0700
Subject: [PATCH] Wifi connection hysteresis

Introduce a separate RSSI threshold for entry so there can be some
hysteresis between entry and exit.

Default to no gap for now, to avoid breaking older devices.

Bug: 64422319
Test: Unit tests
Change-Id: Ib0a9930e143061e3f18558e8cd934ab7226a1e95
---
 core/res/res/values/config.xml  | 3 +++
 core/res/res/values/symbols.xml | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index 4b64e3fab7e5f..ef93b1510de19 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -531,15 +531,18 @@
     <!-- Integer parameters of the wifi to cellular handover feature
          wifi should not stick to bad networks -->
     <integer translatable="false" name="config_wifi_framework_wifi_score_bad_rssi_threshold_5GHz">-82</integer>
+    <integer translatable="false" name="config_wifi_framework_wifi_score_entry_rssi_threshold_5GHz">-82</integer>
     <integer translatable="false" name="config_wifi_framework_wifi_score_low_rssi_threshold_5GHz">-70</integer>
     <integer translatable="false" name="config_wifi_framework_wifi_score_good_rssi_threshold_5GHz">-57</integer>
     <integer translatable="false" name="config_wifi_framework_wifi_score_bad_rssi_threshold_24GHz">-85</integer>
+    <integer translatable="false" name="config_wifi_framework_wifi_score_entry_rssi_threshold_24GHz">-85</integer>
     <integer translatable="false" name="config_wifi_framework_wifi_score_low_rssi_threshold_24GHz">-73</integer>
     <integer translatable="false" name="config_wifi_framework_wifi_score_good_rssi_threshold_24GHz">-60</integer>
     <integer translatable="false" name="config_wifi_framework_wifi_score_bad_link_speed_24">6</integer>
     <integer translatable="false" name="config_wifi_framework_wifi_score_bad_link_speed_5">12</integer>
     <integer translatable="false" name="config_wifi_framework_wifi_score_good_link_speed_24">24</integer>
     <integer translatable="false" name="config_wifi_framework_wifi_score_good_link_speed_5">36</integer>
+
     <string  translatable="false" name="config_wifi_random_mac_oui">DA-A1-19</string>
     <string  translatable="false" name="config_wifi_framework_sap_2G_channel_list">1,6,11</string>
 
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index e5b450ce272fb..0723b586070bd 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -357,9 +357,11 @@
   <java-symbol type="integer" name="config_wifi_framework_associated_full_scan_max_total_dwell_time" />
   <java-symbol type="integer" name="config_wifi_framework_associated_partial_scan_max_num_active_channels" />
   <java-symbol type="integer" name="config_wifi_framework_wifi_score_bad_rssi_threshold_24GHz" />
+  <java-symbol type="integer" name="config_wifi_framework_wifi_score_entry_rssi_threshold_24GHz" />
   <java-symbol type="integer" name="config_wifi_framework_wifi_score_low_rssi_threshold_24GHz" />
   <java-symbol type="integer" name="config_wifi_framework_wifi_score_good_rssi_threshold_24GHz" />
   <java-symbol type="integer" name="config_wifi_framework_wifi_score_bad_rssi_threshold_5GHz" />
+  <java-symbol type="integer" name="config_wifi_framework_wifi_score_entry_rssi_threshold_5GHz" />
   <java-symbol type="integer" name="config_wifi_framework_wifi_score_low_rssi_threshold_5GHz" />
   <java-symbol type="integer" name="config_wifi_framework_wifi_score_good_rssi_threshold_5GHz" />
   <java-symbol type="integer" name="config_wifi_framework_wifi_score_bad_link_speed_24" />