The controller has a default value for the connection latency. Expose
this via debugfs for testing purposes.
Signed-off-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>
---
net/bluetooth/hci_core.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 94551c33c4c6..79d292cfb867 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -851,6 +851,34 @@ static int conn_max_interval_get(void *data, u64 *val)
DEFINE_SIMPLE_ATTRIBUTE(conn_max_interval_fops, conn_max_interval_get,
conn_max_interval_set, "%llu\n");
+static int conn_latency_set(void *data, u64 val)
+{
+ struct hci_dev *hdev = data;
+
+ if (val > 0x01f3)
+ return -EINVAL;
+
+ hci_dev_lock(hdev);
+ hdev->le_conn_latency = val;
+ hci_dev_unlock(hdev);
+
+ return 0;
+}
+
+static int conn_latency_get(void *data, u64 *val)
+{
+ struct hci_dev *hdev = data;
+
+ hci_dev_lock(hdev);
+ *val = hdev->le_conn_latency;
+ hci_dev_unlock(hdev);
+
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(conn_latency_fops, conn_latency_get,
+ conn_latency_set, "%llu\n");
+
static int adv_channel_map_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
@@ -1708,6 +1736,8 @@ static int __hci_init(struct hci_dev *hdev)
hdev, &conn_min_interval_fops);
debugfs_create_file("conn_max_interval", 0644, hdev->debugfs,
hdev, &conn_max_interval_fops);
+ debugfs_create_file("conn_latency", 0644, hdev->debugfs,
+ hdev, &conn_latency_fops);
debugfs_create_file("adv_channel_map", 0644, hdev->debugfs,
hdev, &adv_channel_map_fops);
debugfs_create_file("device_list", 0444, hdev->debugfs, hdev,
--
1.9.3
--
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