Hi Bing,
> Implemented .set_bdaddr handler provided by bluetooth stack for
> Marvell devices for public address configuration.
>
> Signed-off-by: Amitkumar Karwar <akarwar@xxxxxxxxxxx>
> Signed-off-by: Bing Zhao <bzhao@xxxxxxxxxxx>
> ---
> drivers/bluetooth/btusb.c | 31 +++++++++++++++++++++++++++++++
> 1 file changed, 31 insertions(+)
>
> diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
> index ed7b33b..9846fc4 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);
> + bacpy((bdaddr_t *)&buf[2], bdaddr);
you could define a packed struct for this or just use memcpy here instead.
> +
> + skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
Is this opcode writing the address into flash and making it permanent or will a reboot restore it to its original address?
I am asking because for Ericsson chips this exact command with user_id 0xfe was actually making a permanent change of the BD_ADDR. What we want here is a volatile change of the address.
Regards
Marcel
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