Commit f1649577 authored by Marcel Holtmann's avatar Marcel Holtmann
Browse files

Bluetooth: Expose default supervision timeout setting via debugfs 



The controller has a default value for the supervision timeout. Expose
this via debugfs for testing purposes.

Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: default avatarJohan Hedberg <johan.hedberg@intel.com>
parent 816a93d1

net/bluetooth/hci_core.c

+30 −0
Original line number Diff line number Diff line
@@ -879,6 +879,34 @@ static int conn_latency_get(void *data, u64 *val) 
DEFINE_SIMPLE_ATTRIBUTE(conn_latency_fops, conn_latency_get,

			conn_latency_set, "%llu\n");



static int supervision_timeout_set(void *data, u64 val)

{

	struct hci_dev *hdev = data;



	if (val < 0x000a || val > 0x0c80)

		return -EINVAL;



	hci_dev_lock(hdev);

	hdev->le_supv_timeout = val;

	hci_dev_unlock(hdev);



	return 0;

}



static int supervision_timeout_get(void *data, u64 *val)

{

	struct hci_dev *hdev = data;



	hci_dev_lock(hdev);

	*val = hdev->le_supv_timeout;

	hci_dev_unlock(hdev);



	return 0;

}



DEFINE_SIMPLE_ATTRIBUTE(supervision_timeout_fops, supervision_timeout_get,

			supervision_timeout_set, "%llu\n");



static int adv_channel_map_set(void *data, u64 val)

{

	struct hci_dev *hdev = data;
@@ -1738,6 +1766,8 @@ static int __hci_init(struct hci_dev *hdev) 
				    hdev, &conn_max_interval_fops);

		debugfs_create_file("conn_latency", 0644, hdev->debugfs,

				    hdev, &conn_latency_fops);

		debugfs_create_file("supervision_timeout", 0644, hdev->debugfs,

				    hdev, &supervision_timeout_fops);

		debugfs_create_file("adv_channel_map", 0644, hdev->debugfs,

				    hdev, &adv_channel_map_fops);

		debugfs_create_file("device_list", 0444, hdev->debugfs, hdev,