From: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Date: Tue, 22 Dec 2020 18:16:27 +0000 (-0800)
Subject: Bluetooth: btrtl: Enable central-peripheral role
X-Git-Tag: v5.15~1802^2~74^2~38
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=05672a2c14a4ea20b7e31a1d8d847292c2b60c10;p=platform%2Fkernel%2Flinux-starfive.git

Bluetooth: btrtl: Enable central-peripheral role

Enable the central-peripheral role on RTL8822CE. This enables creating
connections while there is an existing connection in the slave role.

This change can be confirmed in userspace via `bluetoothctl show` which
will now show "Roles: central-peripheral".

Reviewed-by: Daniel Winkler <danielwinkler@google.com>
Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---

diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 94df4e9..1abf6a4 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -714,13 +714,24 @@ int btrtl_setup_realtek(struct hci_dev *hdev)
 
 	ret = btrtl_download_firmware(hdev, btrtl_dev);
 
-	btrtl_free(btrtl_dev);
-
 	/* Enable controller to do both LE scan and BR/EDR inquiry
 	 * simultaneously.
 	 */
 	set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
 
+	/* 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:
+		set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
+		break;
+	default:
+		rtl_dev_dbg(hdev, "Central-peripheral role not enabled.");
+		break;
+	}
+
+	btrtl_free(btrtl_dev);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(btrtl_setup_realtek);