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Bluetooth: btusb: USB alternate setting 1 for WBS

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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>
This commit is contained in:
Hilda Wu 2020-06-30 21:09:40 +08:00 committed by Marcel Holtmann
parent d4edda0f79
commit 461f95f04f
1 changed files with 20 additions and 14 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

34
drivers/bluetooth/btusb.c
View file

@ -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;
@ -1682,15 +1683,16 @@ 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)
bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
@ -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);