Commit 6933568a authored by Abhishek Pandit-Subedi's avatar Abhishek Pandit-Subedi Committed by Marcel Holtmann

Bluetooth: btusb: Reset port on cmd timeout

QCA_ROME sometimes gets into a state where it is unresponsive to
commands. Since it doesn't have support for a reset gpio, reset the usb
port when this occurs instead.
Signed-off-by: default avatarAbhishek Pandit-Subedi <abhishekpandit@chromium.org>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 737cd060
...@@ -573,6 +573,22 @@ static void btusb_rtl_cmd_timeout(struct hci_dev *hdev) ...@@ -573,6 +573,22 @@ static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
gpiod_set_value_cansleep(reset_gpio, 0); gpiod_set_value_cansleep(reset_gpio, 0);
} }
static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
{
struct btusb_data *data = hci_get_drvdata(hdev);
int err;
if (++data->cmd_timeout_cnt < 5)
return;
bt_dev_err(hdev, "Multiple cmd timeouts seen. Resetting usb device.");
err = usb_autopm_get_interface(data->intf);
if (!err)
usb_queue_reset_device(data->intf);
else
bt_dev_err(hdev, "Failed usb_autopm_get_interface with %d", err);
}
static inline void btusb_free_frags(struct btusb_data *data) static inline void btusb_free_frags(struct btusb_data *data)
{ {
unsigned long flags; unsigned long flags;
...@@ -3964,6 +3980,7 @@ static int btusb_probe(struct usb_interface *intf, ...@@ -3964,6 +3980,7 @@ static int btusb_probe(struct usb_interface *intf,
if (id->driver_info & BTUSB_QCA_ROME) { if (id->driver_info & BTUSB_QCA_ROME) {
data->setup_on_usb = btusb_setup_qca; data->setup_on_usb = btusb_setup_qca;
hdev->set_bdaddr = btusb_set_bdaddr_ath3012; hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
hdev->cmd_timeout = btusb_qca_cmd_timeout;
set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
btusb_check_needs_reset_resume(intf); btusb_check_needs_reset_resume(intf);
} }
......
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