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From: clancy_shang@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: Tue, 26 Dec 2023 14:30:28 +0800
Message-Id: <20231226063028.2457072-1-clancy_shang@163.com>
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From: Clancy Shang <clancy.shang@quectel.com>

Airpod is performing inquiry scans in BR/EDR and advertising in an
unconnectable mode with the same public address at the same time.
with this feature, when found airpod device, set the bredr support,
fix it pairs 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..71f7ed86d 100644
--- a/src/adapter.c
+++ b/src/adapter.c
@@ -7066,6 +7066,24 @@ 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 +7299,13 @@ 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