Bluetooth: btusb: Add setup callback for chip init on USB (ace31982) · Commits · 戴 / test

Some of chipset does not allow to send a patch or config files through HCI VS channel at early stage as well as they don't support to send USB patch files to other channel except USB bulk path. New callback added is for initialization of BT controller through USB Signed-off-by:

Ben Young Tae Kim <ytkim@qca.qualcomm.com> Signed-off-by:

Marcel Holtmann <marcel@holtmann.org>

drivers/bluetooth/btusb.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -337,6 +337,8 @@ struct btusb_data {

		int (recv_event)(struct hci_dev hdev, struct sk_buff *skb);
		int (recv_bulk)(struct btusb_data data, void *buffer, int count);

		int (setup_on_usb)(struct hci_dev hdev);
		};

		static inline void btusb_free_frags(struct btusb_data *data)
		@@ -878,6 +880,15 @@ static int btusb_open(struct hci_dev *hdev)

		BT_DBG("%s", hdev->name);

		/* Patching USB firmware files prior to starting any URBs of HCI path
		* It is more safe to use USB bulk channel for downloading USB patch
		*/
		if (data->setup_on_usb) {
		err = data->setup_on_usb(hdev);
		if (err <0)
		return err;
		}

		err = usb_autopm_get_interface(data->intf);
		if (err < 0)
		return err;

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