Hi Joseph,
> This patch enables Mediatek MT7921 to support the AOSP extension.
>
> Reviewed-by: Miao-chen Chou <mcchou@xxxxxxxxxxxx>
> Signed-off-by: Joseph Hwang <josephsih@xxxxxxxxxxxx>
>
> ---
>
> Changes in v4:
> - Call hci_set_aosp_capable in the driver.
> - This patch is added in this Series-changes 4.
>
> drivers/bluetooth/btusb.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
> index da85cc14f931..de0228e2245b 100644
> --- a/drivers/bluetooth/btusb.c
> +++ b/drivers/bluetooth/btusb.c
> @@ -60,6 +60,7 @@ static struct usb_driver btusb_driver;
> #define BTUSB_VALID_LE_STATES 0x800000
> #define BTUSB_QCA_WCN6855 0x1000000
> #define BTUSB_INTEL_BROKEN_INITIAL_NCMD 0x4000000
> +#define BTUSB_AOSP 0x8000000
>
> static const struct usb_device_id btusb_table[] = {
> /* Generic Bluetooth USB device */
> @@ -394,6 +395,7 @@ static const struct usb_device_id blacklist_table[] = {
> /* MediaTek Bluetooth devices */
> { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
> .driver_info = BTUSB_MEDIATEK |
> + BTUSB_AOSP |
> BTUSB_WIDEBAND_SPEECH |
> BTUSB_VALID_LE_STATES },
>
> @@ -407,6 +409,7 @@ static const struct usb_device_id blacklist_table[] = {
>
> /* Additional MediaTek MT7921 Bluetooth devices */
> { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
> + BTUSB_AOSP |
> BTUSB_WIDEBAND_SPEECH |
> BTUSB_VALID_LE_STATES },
> { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
> @@ -3867,6 +3870,9 @@ static int btusb_probe(struct usb_interface *intf,
> hdev->set_bdaddr = btusb_set_bdaddr_mtk;
> set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
> data->recv_acl = btusb_recv_acl_mtk;
> +
> + if (id->driver_info & BTUSB_AOSP)
> + hci_set_aosp_capable(hdev);
> }
so I don’t like this. Do we have Mediatek devices that don’t support the AOSP extensions and can’t we determine via some vendor command what features are supported? I do not want to clutter btusb.c any further. The vendor specific setup should be able to figure out what the hardware supports and what it doesn’t.
Regards
Marcel
