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From: Zijun Hu <quic_zijuhu@quicinc.com>
To: <luiz.dentz@gmail.com>, <marcel@holtmann.org>, <johan.hedberg@gmail.com>
CC: <linux-bluetooth@vger.kernel.org>, <quic_zijuhu@quicinc.com>,
        Zijun Hu
	<zijuhu@qti.qualcomm.com>
Subject: [PATCH v3 2/2] Bluetooth: qca: Support SCO offload for QCA2066
Date: Wed, 29 Nov 2023 16:29:30 +0800
Message-ID: <1701246570-3564-3-git-send-email-quic_zijuhu@quicinc.com>
In-Reply-To: <1701246570-3564-1-git-send-email-quic_zijuhu@quicinc.com>
References: <1701245906-10660-1-git-send-email-quic_zijuhu@quicinc.com>
 <1701246570-3564-1-git-send-email-quic_zijuhu@quicinc.com>
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In order to support SCO offload for QCA2066, ALL BTHOST needs to do
is specifying both Input_Data_Path and Output_Data_Path as 0x01 for
HCI_Enhanced_Setup_Synchronous_Connection, and it is implemented by
this change.

Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
---
 drivers/bluetooth/hci_qca.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 35f74f209d1f..970b1bcf7dde 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1815,6 +1815,26 @@ static void hci_coredump_qca(struct hci_dev *hdev)
 	kfree_skb(skb);
 }
 
+static int qca_get_data_path_id(struct hci_dev *hdev, __u8 *data_path_id)
+{
+	/* QCA uses 1 as non-HCI data path id for HFP */
+	*data_path_id = 1;
+	return 0;
+}
+
+static int qca_configure_sco_offload(struct hci_dev *hdev)
+{
+	bt_dev_info(hdev, "HFP non-HCI data transport is supported");
+	hdev->get_data_path_id = qca_get_data_path_id;
+	/* Do not need to send HCI_Configure_Data_Path to configure QCA non-HCI
+	 * data transport since HCI_Enhanced_Setup_Synchronous_Connection is
+	 * enough for QCA controller to configure HFP data transport, so set
+	 * below field as NULL.
+	 */
+	hdev->get_codec_config_data = NULL;
+	return 0;
+}
+
 static int qca_setup(struct hci_uart *hu)
 {
 	struct hci_dev *hdev = hu->hdev;
@@ -1969,6 +1989,10 @@ static int qca_setup(struct hci_uart *hu)
 		hu->hdev->set_bdaddr = qca_set_bdaddr_rome;
 	else
 		hu->hdev->set_bdaddr = qca_set_bdaddr;
+
+	if (soc_type == QCA_QCA2066)
+		qca_configure_sco_offload(hdev);
+
 	qca->fw_version = le16_to_cpu(ver.patch_ver);
 	qca->controller_id = le16_to_cpu(ver.rom_ver);
 	hci_devcd_register(hdev, hci_coredump_qca, qca_dmp_hdr, NULL);
-- 
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