[PATCH 5/6] Bluetooth: Add LE connection parameters to debugfs

[Andre Guedes <andre.guedes@openbossa.org>]

From: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>

Only reading the parameters is supported for now.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
---
 net/bluetooth/hci_sysfs.c | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 17ebc4a..5993150 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -603,6 +603,35 @@ static const struct file_operations discovery_parameters_fops = {
 	.release	= single_release,
 };
 
+static int le_conn_parameters_show(struct seq_file *f, void *p)
+{
+	struct hci_dev *hdev = f->private;
+	struct le_conn_params *params = &hdev->le_conn_params;
+
+	hci_dev_lock(hdev);
+
+	seq_printf(f, "0x%.4x 0x%.4x 0x%.4x 0x%.4x 0x%.4x\n",
+		   params->scan_interval, params->scan_window,
+		   params->conn_interval_min, params->conn_interval_max,
+		   params->supervision_timeout);
+
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int le_conn_parameters_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, le_conn_parameters_show, inode->i_private);
+}
+
+static const struct file_operations le_conn_parameters_fops = {
+	.open		= le_conn_parameters_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 void hci_init_sysfs(struct hci_dev *hdev)
 {
 	struct device *dev = &hdev->dev;
@@ -647,6 +676,10 @@ int hci_add_sysfs(struct hci_dev *hdev)
 
 	debugfs_create_file("discovery_parameters", 0644, hdev->debugfs, hdev,
 			    &discovery_parameters_fops);
+
+	debugfs_create_file("le_conn_parameters", 0644, hdev->debugfs, hdev,
+			    &le_conn_parameters_fops);
+
 	return 0;
 }
 
-- 
1.8.3.4