From ace31982585a323afb194f56b9e0486f7bc6570c Mon Sep 17 00:00:00 2001 From: Kim, Ben Young Tae Date: Sun, 15 Feb 2015 23:06:14 +0000 Subject: Bluetooth: btusb: Add setup callback for chip init on USB 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 Signed-off-by: Marcel Holtmann --- drivers/bluetooth/btusb.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers/bluetooth/btusb.c') diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 3ca2e1bf7bfa..73e1066cd38b 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -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; -- cgit v1.2.3-55-g7522