Bluetooth: add public address configuration for Marvell USB devices

Implemented .set_bdaddr handler provided by bluetooth stack for
Marvell devices for public address configuration.
A reboot restores the bdaddr to its original address.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index ed7b33b..b062bed 100644 (file)
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -48,6 +48,7 @@ static struct usb_driver btusb_driver;
 #define BTUSB_INTEL            0x100
 #define BTUSB_INTEL_BOOT       0x200
 #define BTUSB_BCM_PATCHRAM     0x400
+#define BTUSB_MARVELL          0x800
 
 static const struct usb_device_id btusb_table[] = {
        /* Generic Bluetooth USB device */
@@ -242,6 +243,10 @@ static const struct usb_device_id blacklist_table[] = {
        { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
        { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
 
+       /* Marvell device */
+       { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
+       { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
+
        { }     /* Terminating entry */
 };
 
@@ -1455,6 +1460,29 @@ static int btusb_set_bdaddr_intel(struct hci_dev *hdev, const bdaddr_t *bdaddr)
        return 0;
 }
 
+static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
+                                   const bdaddr_t *bdaddr)
+{
+       struct sk_buff *skb;
+       u8 buf[8];
+       long ret;
+
+       buf[0] = 0xfe;
+       buf[1] = sizeof(bdaddr_t);
+       memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
+
+       skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
+       if (IS_ERR(skb)) {
+               ret = PTR_ERR(skb);
+               BT_ERR("%s: changing Marvell device address failed (%ld)",
+                      hdev->name, ret);
+               return ret;
+       }
+       kfree_skb(skb);
+
+       return 0;
+}
+
 #define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}})
 
 static int btusb_setup_bcm_patchram(struct hci_dev *hdev)
@@ -1766,6 +1794,9 @@ static int btusb_probe(struct usb_interface *intf,
                hdev->set_bdaddr = btusb_set_bdaddr_intel;
        }
 
+       if (id->driver_info & BTUSB_MARVELL)
+               hdev->set_bdaddr = btusb_set_bdaddr_marvell;
+
        if (id->driver_info & BTUSB_INTEL_BOOT)
                set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);