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authorHilda Wu <hildawu@realtek.com>2020-06-30 16:09:40 +0300
committerMarcel Holtmann <marcel@holtmann.org>2020-07-07 18:37:03 +0300
commit461f95f04f19382dcfd17da2d8db37e0cdc719f2 (patch)
tree1a09ce1fccdfecb3488abb9d3cdb55b1bdea0136 /drivers/bluetooth
parentd4edda0f791fccf4cbb8a88566a8f2b1228faaee (diff)
downloadlinux-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.c34
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);