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From: 15013537245@163.com
To: linux-bluetooth@vger.kernel.org
Cc: zhongjun.yu@quectel.com,
	Clancy Shang <clancy.shang@quectel.com>
Subject: [PATCH] [BlueZ] adapter: Fix airpod device pair fail
Date: Fri, 22 Dec 2023 13:45:15 +0800
Message-Id: <20231222054515.1266741-1-15013537245@163.com>
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From: Clancy Shang <clancy.shang@quectel.com>

Airpod is performing inquiry scans in BR/EDR and advertising in a
unconnectabl mode whit the same public address at the same time.
with this featrue, when found airpod device, set the bredr support,
fix it pair fail bug.

Signed-off-by: Clancy Shang <clancy.shang@quectel.com>
---
 src/adapter.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/src/adapter.c b/src/adapter.c
index 022390f0d..488355e9c 100644
--- a/src/adapter.c
+++ b/src/adapter.c
@@ -7066,6 +7066,25 @@ static void adapter_msd_notify(struct btd_adapter *adapter,
 	}
 }
 
+#define APPLE_INC_VENDOR_ID 0x004c
+
+static bool eir_msd_is_apple_inc(GSList *msd_list)
+{
+	GSList *msd_l, *msd_next;
+
+	for (msd_l = msd_list; msd_l != NULL; msd_l = msd_next) {
+
+		const struct eir_msd *msd = msd_l->data;
+
+		msd_next = g_slist_next(msd_l);
+
+		if (msd->company == APPLE_INC_VENDOR_ID)
+			return true;
+	}
+
+	return false;
+}
+
 static bool is_filter_match(GSList *discovery_filter, struct eir_data *eir_data,
 								int8_t rssi)
 {
@@ -7281,6 +7300,12 @@ void btd_adapter_device_found(struct btd_adapter *adapter,
 		device_update_last_seen(dev, BDADDR_BREDR, !not_connectable);
 	}
 
+	if (eir_msd_is_apple_inc(eir_data.msd_list) && (not_connectable == true)
+		&& (bdaddr_type == BDADDR_LE_PUBLIC)) {
+		device_set_bredr_support(dev);
+		device_update_last_seen(dev, BDADDR_BREDR, true);
+	}
+
 	if (eir_data.name != NULL && eir_data.name_complete)
 		device_store_cached_name(dev, eir_data.name);
 
-- 
2.25.1