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Message-ID: <20240702113051.24372-5-chris.lu@mediatek.com>
Date: Tue, 2 Jul 2024 19:30:47 +0800
From: Chris Lu <chris.lu@...iatek.com>
To: Marcel Holtmann <marcel@...tmann.org>, Johan Hedberg
<johan.hedberg@...il.com>, Luiz Von Dentz <luiz.dentz@...il.com>
CC: Sean Wang <sean.wang@...iatek.com>, Aaron Hou <aaron.hou@...iatek.com>,
Steve Lee <steve.lee@...iatek.com>, linux-bluetooth
<linux-bluetooth@...r.kernel.org>, linux-kernel
<linux-kernel@...r.kernel.org>, linux-mediatek
<linux-mediatek@...ts.infradead.org>, Chris Lu <chris.lu@...iatek.com>
Subject: [PATCH v6 4/8] Bluetooth: btusb: add callback function in btusb suspend/resume
Add suspend/resum callback function in btusb_data which are reserved
for vendor specific usage during suspend/resume. hdev->suspend will be
added before stop traffic in btusb_suspend and hdev-> resume will be
added after resubmit urb in btusb_resume.
Signed-off-by: Chris Lu <chris.lu@...iatek.com>
Signed-off-by: Sean Wang <sean.wang@...iatek.com>
---
drivers/bluetooth/btusb.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 7612f10f9d39..4ec18b58dc68 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -891,6 +891,9 @@ struct btusb_data {
int (*setup_on_usb)(struct hci_dev *hdev);
+ int (*suspend)(struct hci_dev *hdev);
+ int (*resume)(struct hci_dev *hdev);
+
int oob_wake_irq; /* irq for out-of-band wake-on-bt */
unsigned cmd_timeout_cnt;
@@ -4765,6 +4768,9 @@ static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
cancel_work_sync(&data->work);
+ if (data->suspend)
+ data->suspend(data->hdev);
+
btusb_stop_traffic(data);
usb_kill_anchored_urbs(&data->tx_anchor);
@@ -4868,6 +4874,9 @@ static int btusb_resume(struct usb_interface *intf)
btusb_submit_isoc_urb(hdev, GFP_NOIO);
}
+ if (data->resume)
+ data->resume(hdev);
+
spin_lock_irq(&data->txlock);
play_deferred(data);
clear_bit(BTUSB_SUSPENDING, &data->flags);
--
2.18.0
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