From: Rajat Jain <rajatja@google.com>
Date: Thu, 24 Jan 2019 23:28:13 +0000 (-0800)
Subject: Bluetooth: Allow driver specific cmd timeout handling
X-Git-Tag: v5.1-rc1~178^2~97^2~17
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=e2bef3847e3d0d57dcf316de50c4b1a5a91816b7;p=linux.git

Bluetooth: Allow driver specific cmd timeout handling

Add a hook to allow the BT driver to do device or command specific
handling in case of timeouts. This is to be used by Intel driver to
reset the device after certain number of timeouts.

Signed-off-by: Rajat Jain <rajatja@google.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index e5ea633ea368..094e61e07030 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -437,6 +437,7 @@ struct hci_dev {
 	int (*post_init)(struct hci_dev *hdev);
 	int (*set_diag)(struct hci_dev *hdev, bool enable);
 	int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
+	void (*cmd_timeout)(struct hci_dev *hdev);
 };
 
 #define HCI_PHY_HANDLE(handle)	(handle & 0xff)
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 7352fe85674b..75793265ba9e 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2578,6 +2578,9 @@ static void hci_cmd_timeout(struct work_struct *work)
 		bt_dev_err(hdev, "command tx timeout");
 	}
 
+	if (hdev->cmd_timeout)
+		hdev->cmd_timeout(hdev);
+
 	atomic_set(&hdev->cmd_cnt, 1);
 	queue_work(hdev->workqueue, &hdev->cmd_work);
 }