Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | Date | Mon, 22 Apr 2024 15:25:01 +0800 | Subject | [PATCH] Bluetooth: btusb: Add debugfs to force toggling remote wakeup | From | Archie Pusaka <> |
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From: Archie Pusaka <apusaka@chromium.org>
Sometimes we want the controller to not wake the host up, e.g. to save the battery. Add some debugfs knobs to force the wake by BT behavior.
Signed-off-by: Archie Pusaka <apusaka@chromium.org> Reviewed-by: Abhishek Pandit-Subedi <abhishekpandit@google.com>
---
drivers/bluetooth/btusb.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 8bede0a335668..846b15fc3c04c 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -873,6 +873,9 @@ struct btusb_data { unsigned cmd_timeout_cnt; struct qca_dump_info qca_dump; + + bool force_enable_remote_wake; + bool force_disable_remote_wake; }; static void btusb_reset(struct hci_dev *hdev) @@ -4596,6 +4599,10 @@ static int btusb_probe(struct usb_interface *intf, debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data, &force_poll_sync_fops); + debugfs_create_bool("force_enable_remote_wake", 0644, hdev->debugfs, + &data->force_enable_remote_wake); + debugfs_create_bool("force_disable_remote_wake", 0644, hdev->debugfs, + &data->force_disable_remote_wake); return 0; @@ -4702,6 +4709,18 @@ static int btusb_suspend(struct usb_interface *intf, pm_message_t message) } } + if (!PMSG_IS_AUTO(message)) { + if (data->force_enable_remote_wake) { + data->udev->do_remote_wakeup = 1; + if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) + data->udev->reset_resume = 0; + } else if (data->force_disable_remote_wake) { + data->udev->do_remote_wakeup = 0; + if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) + data->udev->reset_resume = 1; + } + } + return 0; } -- 2.44.0.769.g3c40516874-goog
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