From: Amitkumar Karwar <akarwar@xxxxxxxxxxx>
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@xxxxxxxxxxx>
Signed-off-by: Bing Zhao <bzhao@xxxxxxxxxxx>
---
v2: use memcpy instead of bacpy
drivers/bluetooth/btusb.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index ed7b33b..b062bed 100644
--- 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);
--
1.8.0
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