From: Zijun Hu <zijuhu@codeaurora.org>
To: marcel@holtmann.org, johan.hedberg@gmail.com, luiz.dentz@gmail.com
Cc: linux-kernel@vger.kernel.org, linux-bluetooth@vger.kernel.org,
linux-arm-msm@vger.kernel.org, bgodavar@codeaurora.org,
c-hbandi@codeaurora.org, hemantg@codeaurora.org,
mka@chromium.org, rjliao@codeaurora.org, zijuhu@codeaurora.org,
tjiang@codeaurora.org
Subject: [PATCH v1] Bluetooth: btusb: add shutdown function for wcn6855
Date: Fri, 18 Dec 2020 18:12:11 +0800 [thread overview]
Message-ID: <1608286331-15760-1-git-send-email-zijuhu@codeaurora.org> (raw)
From: Tim Jiang <tjiang@codeaurora.org>
we should send hci reset command before bt turn off, which can reset bt
firmware status.
Signed-off-by: Tim Jiang <tjiang@codeaurora.org>
---
drivers/bluetooth/btusb.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 03b83aa91277..139132463a87 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -4264,6 +4264,20 @@ static bool btusb_prevent_wake(struct hci_dev *hdev)
return !device_may_wakeup(&data->udev->dev);
}
+static int btusb_shutdown_qca(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+
+ skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ bt_dev_err(hdev, "HCI reset during shutdown failed");
+ return PTR_ERR(skb);
+ }
+ kfree_skb(skb);
+
+ return 0;
+}
+
static int btusb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
@@ -4523,6 +4537,7 @@ static int btusb_probe(struct usb_interface *intf,
if (id->driver_info & BTUSB_QCA_WCN6855) {
data->setup_on_usb = btusb_setup_qca;
+ hdev->shutdown = btusb_shutdown_qca;
hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
hdev->cmd_timeout = btusb_qca_cmd_timeout;
set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project
next reply other threads:[~2020-12-18 10:13 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-18 10:12 Zijun Hu [this message]
2020-12-18 11:13 ` [v1] Bluetooth: btusb: add shutdown function for wcn6855 bluez.test.bot
2020-12-18 21:30 ` [PATCH v1] " Marcel Holtmann
2021-03-01 19:59 ` patchwork-bot+linux-arm-msm
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