diff options
| author | Hilda Wu <hildawu@realtek.com> | 2020-06-30 16:09:40 +0300 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2020-07-07 18:37:03 +0300 |
| commit | 461f95f04f19382dcfd17da2d8db37e0cdc719f2 (patch) | |
| tree | 1a09ce1fccdfecb3488abb9d3cdb55b1bdea0136 /drivers/bluetooth | |
| parent | d4edda0f791fccf4cbb8a88566a8f2b1228faaee (diff) | |
| download | linux-461f95f04f19382dcfd17da2d8db37e0cdc719f2.tar.xz | |
Bluetooth: btusb: USB alternate setting 1 for WBS
RTL8822CE supports transparent WBS to apply USB alternate setting 1.
Add a flag to the device match data to apply alternate setting 1 which
meet the transfer speed for WBS support.
Signed-off-by: Hilda Wu <hildawu@realtek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth')
| -rw-r--r-- | drivers/bluetooth/btusb.c | 34 |
1 files changed, 20 insertions, 14 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 0e143c0cecf2..faa863dd5d0a 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -453,6 +453,7 @@ static const struct dmi_system_id btusb_needs_reset_resume_table[] = { #define BTUSB_HW_RESET_ACTIVE 12 #define BTUSB_TX_WAIT_VND_EVT 13 #define BTUSB_WAKEUP_DISABLE 14 +#define BTUSB_USE_ALT1_FOR_WBS 15 struct btusb_data { struct hci_dev *hdev; @@ -1682,14 +1683,15 @@ static void btusb_work(struct work_struct *work) new_alts = data->sco_num; } } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { - - data->usb_alt6_packet_flow = true; - /* Check if Alt 6 is supported for Transparent audio */ - if (btusb_find_altsetting(data, 6)) + if (btusb_find_altsetting(data, 6)) { + data->usb_alt6_packet_flow = true; new_alts = 6; - else + } else if (test_bit(BTUSB_USE_ALT1_FOR_WBS, &data->flags)) { + new_alts = 1; + } else { bt_dev_err(hdev, "Device does not support ALT setting 6"); + } } if (btusb_switch_alt_setting(hdev, new_alts) < 0) @@ -4004,6 +4006,15 @@ static int btusb_probe(struct usb_interface *intf, btusb_check_needs_reset_resume(intf); } + if (id->driver_info & BTUSB_AMP) { + /* AMP controllers do not support SCO packets */ + data->isoc = NULL; + } else { + /* Interface orders are hardcoded in the specification */ + data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); + data->isoc_ifnum = ifnum_base + 1; + } + if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && (id->driver_info & BTUSB_REALTEK)) { hdev->setup = btrtl_setup_realtek; @@ -4015,21 +4026,16 @@ static int btusb_probe(struct usb_interface *intf, * (DEVICE_REMOTE_WAKEUP) */ set_bit(BTUSB_WAKEUP_DISABLE, &data->flags); + if (btusb_find_altsetting(data, 1)) + set_bit(BTUSB_USE_ALT1_FOR_WBS, &data->flags); + else + bt_dev_err(hdev, "Device does not support ALT setting 1"); err = usb_autopm_get_interface(intf); if (err < 0) goto out_free_dev; } - if (id->driver_info & BTUSB_AMP) { - /* AMP controllers do not support SCO packets */ - data->isoc = NULL; - } else { - /* Interface orders are hardcoded in the specification */ - data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); - data->isoc_ifnum = ifnum_base + 1; - } - if (!reset) set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); |