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Date:   Sun, 20 Mar 2022 18:36:55 -0700
Message-Id: <20220320183445.BlueZ.1.I21d5ed25e9a0a2427bddbd6d4ec04d80d735fc53@changeid>
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Subject: [BlueZ PATCH 1/9] adv_monitor: Disable RSSIHighTimeout for SW based filtering
From:   Manish Mandlik <mmandlik@google.com>
To:     marcel@holtmann.org, luiz.dentz@gmail.com
Cc:     chromeos-bluetooth-upstreaming@chromium.org,
        linux-bluetooth@vger.kernel.org,
        Manish Mandlik <mmandlik@google.com>,
        Miao-chen Chou <mcchou@chromium.org>
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Precedence: bulk

Controller offloading does not support High RSSI Timeout. Disable High
RSSI Timeout for SW based filtering as well to provide a consistent
behavior between SW based and controller based monitoring.

Reviewed-by: Miao-chen Chou <mcchou@chromium.org>
---

 doc/advertisement-monitor-api.txt | 5 +++++
 src/adv_monitor.c                 | 6 ++++++
 2 files changed, 11 insertions(+)

diff --git a/doc/advertisement-monitor-api.txt b/doc/advertisement-monitor-api.txt
index 9189f2cce..942d44b2f 100644
--- a/doc/advertisement-monitor-api.txt
+++ b/doc/advertisement-monitor-api.txt
@@ -79,6 +79,11 @@ Properties	string Type [read-only]
 			in-range (found). Valid range is 1 to 300 (seconds),
 			while 0 indicates unset.
 
+			NOTE: Controller offloading does not support High RSSI
+			Timeout. So, to provide a consistent behavior between
+			SW based and controller based monitoring, this property
+			has been disabled and deprecated.
+
 		Uint16 RSSISamplingPeriod [read-only, optional]
 
 			Grouping rules on how to propagate the received
diff --git a/src/adv_monitor.c b/src/adv_monitor.c
index 33f4d9619..a1778248f 100644
--- a/src/adv_monitor.c
+++ b/src/adv_monitor.c
@@ -860,6 +860,12 @@ static bool parse_rssi_and_timeout(struct adv_monitor *monitor,
 	monitor->rssi.low_rssi_timeout = l_rssi_timeout;
 	monitor->rssi.sampling_period = sampling_period;
 
+	/* Controller offloading does not support High RSSI Timeout. Disable
+	 * High RSSI Timeout for SW based filtering to provide a consistent
+	 * behavior between SW based and controller based monitoring.
+	 */
+	monitor->rssi.high_rssi_timeout = ADV_MONITOR_UNSET_TIMEOUT;
+
 done:
 	DBG("Adv Monitor at %s initiated with high RSSI threshold %d, high "
 		"RSSI threshold timeout %d, low RSSI threshold %d, low RSSI "
-- 
2.35.1.894.gb6a874cedc-goog