linux-kernel - [PATCH v6] Bluetooth: btrtl: Enable WBS for the specific Realtek devices

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Date:   Wed, 27 Jan 2021 11:01:52 +0800
From:   <max.chou@...ltek.com>
To:     <marcel@...tmann.org>, <johan.hedberg@...il.com>,
        <luiz.dentz@...il.com>, <linux-bluetooth@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC:     <alex_lu@...lsil.com.cn>, <hildawu@...ltek.com>,
        <kidman@...ltek.com>, <max.chou@...ltek.com>,
        <abhishekpandit@...omium.org>, <josephsih@...omium.org>
Subject: [PATCH v6] Bluetooth: btrtl: Enable WBS for the specific Realtek devices

From: Max Chou <max.chou@...ltek.com>

By this change, it will enable WBS supported on the specific Realtek BT
devices, such as RTL8822C and RTL8852A.
In the future, it's able to maintain what the Realtek devices support WBS
here.

Tested-by: Hilda Wu <hildawu@...ltek.com>
Reviewed-by: Abhishek Pandit-Subedi <abhishekpandit@...omium.org>
Signed-off-by: Max Chou <max.chou@...ltek.com>

---
change in v6
 -remove lable 'done' in btrtl_setup_realtek()
---
 drivers/bluetooth/btrtl.c | 30 +++++++++++++++++++++++-------
 1 file changed, 23 insertions(+), 7 deletions(-)

diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 24f03a1f8d57..e7fe5fb22753 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -38,6 +38,19 @@
 	.hci_ver = (hciv), \
 	.hci_bus = (bus)
 
+enum btrtl_chip_id {
+	CHIP_ID_8723A,
+	CHIP_ID_8723B,
+	CHIP_ID_8821A,
+	CHIP_ID_8761A,
+	CHIP_ID_8822B = 8,
+	CHIP_ID_8723D,
+	CHIP_ID_8821C,
+	CHIP_ID_8822C = 13,
+	CHIP_ID_8761B,
+	CHIP_ID_8852A = 18,
+};
+
 struct id_table {
 	__u16 match_flags;
 	__u16 lmp_subver;
@@ -58,6 +71,7 @@ struct btrtl_device_info {
 	u8 *cfg_data;
 	int cfg_len;
 	bool drop_fw;
+	int project_id;
 };
 
 static const struct id_table ic_id_table[] = {
@@ -307,8 +321,10 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev,
 
 	/* Find project_id in table */
 	for (i = 0; i < ARRAY_SIZE(project_id_to_lmp_subver); i++) {
-		if (project_id == project_id_to_lmp_subver[i].id)
+		if (project_id == project_id_to_lmp_subver[i].id) {
+			btrtl_dev->project_id = project_id;
 			break;
+		}
 	}
 
 	if (i >= ARRAY_SIZE(project_id_to_lmp_subver)) {
@@ -719,22 +735,22 @@ int btrtl_setup_realtek(struct hci_dev *hdev)
 	 */
 	set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
 
-	if (!btrtl_dev->ic_info)
-		goto done;
-
 	/* Enable central-peripheral role (able to create new connections with
 	 * an existing connection in slave role).
 	 */
-	switch (btrtl_dev->ic_info->lmp_subver) {
-	case RTL_ROM_LMP_8822B:
+	/* Enable WBS supported for the specific Realtek devices. */
+	switch (btrtl_dev->project_id) {
+	case CHIP_ID_8822C:
+	case CHIP_ID_8852A:
 		set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
+		set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
 		break;
 	default:
 		rtl_dev_dbg(hdev, "Central-peripheral role not enabled.");
+		rtl_dev_dbg(hdev, "WBS supported not enabled.");
 		break;
 	}
 
-done:
 	btrtl_free(btrtl_dev);
 	return ret;
 }
-- 
2.17.1