linux-kernel - [PATCH v2] Bluetooth: btusb: Set HCI_QUIRK_BROKEN_ERR_DATA

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Message-ID: <1651025811-10680-1-git-send-email-quic_zijuhu@quicinc.com>
Date:   Wed, 27 Apr 2022 10:16:51 +0800
From:   Zijun Hu <quic_zijuhu@...cinc.com>
To:     <marcel@...tmann.org>, <johan.hedberg@...il.com>,
        <luiz.dentz@...il.com>
CC:     <linux-kernel@...r.kernel.org>, <linux-bluetooth@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>, Zijun Hu <quic_zijuhu@...cinc.com>
Subject: [PATCH v2] Bluetooth: btusb: Set HCI_QUIRK_BROKEN_ERR_DATA_REPORTING for QCA

Set HCI_QUIRK_BROKEN_ERR_DATA_REPORTING for QCA controllers since
they answer HCI_OP_READ_DEF_ERR_DATA_REPORTING with error code
"UNKNOWN HCI COMMAND" as shown below:

[  580.517552] Bluetooth: hci0: unexpected cc 0x0c5a length: 1 < 2
[  580.517660] Bluetooth: hci0: Opcode 0x c5a failed: -38

hcitool -i hci0 cmd 0x03 0x5a
< HCI Command: ogf 0x03, ocf 0x005a, plen 0
> HCI Event: 0x0e plen 4
  01 5A 0C 01

btmon log:
< HCI Command: Read Default Erroneous Data Reporting (0x03|0x005a) plen 0
> HCI Event: Command Complete (0x0e) plen 4
      Read Default Erroneous Data Reporting (0x03|0x005a) ncmd 1
        Status: Unknown HCI Command (0x01)

Signed-off-by: Zijun Hu <quic_zijuhu@...cinc.com>
---
 drivers/bluetooth/btusb.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index e6e28d3d1683..428843dbcf32 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -3346,6 +3346,8 @@ static int btusb_setup_qca(struct hci_dev *hdev)
 	 */
 	set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
 
+	set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
+
 	return 0;
 }
 
-- 
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