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path: root/drivers/bluetooth/btmrvl_debugfs.c
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Diffstat (limited to 'drivers/bluetooth/btmrvl_debugfs.c')
-rw-r--r--drivers/bluetooth/btmrvl_debugfs.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/bluetooth/btmrvl_debugfs.c b/drivers/bluetooth/btmrvl_debugfs.c
index 023d35e3c7a7..1828ed8cae7a 100644
--- a/drivers/bluetooth/btmrvl_debugfs.c
+++ b/drivers/bluetooth/btmrvl_debugfs.c
@@ -167,6 +167,35 @@ static const struct file_operations btmrvl_hscmd_fops = {
.llseek = default_llseek,
};
+static ssize_t btmrvl_fwdump_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct btmrvl_private *priv = file->private_data;
+ char buf[16];
+ bool result;
+
+ memset(buf, 0, sizeof(buf));
+
+ if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
+ return -EFAULT;
+
+ if (strtobool(buf, &result))
+ return -EINVAL;
+
+ if (!result)
+ return -EINVAL;
+
+ btmrvl_firmware_dump(priv);
+
+ return count;
+}
+
+static const struct file_operations btmrvl_fwdump_fops = {
+ .write = btmrvl_fwdump_write,
+ .open = simple_open,
+ .llseek = default_llseek,
+};
+
void btmrvl_debugfs_init(struct hci_dev *hdev)
{
struct btmrvl_private *priv = hci_get_drvdata(hdev);
@@ -197,6 +226,8 @@ void btmrvl_debugfs_init(struct hci_dev *hdev)
priv, &btmrvl_hscmd_fops);
debugfs_create_file("hscfgcmd", 0644, dbg->config_dir,
priv, &btmrvl_hscfgcmd_fops);
+ debugfs_create_file("fw_dump", 0200, dbg->config_dir,
+ priv, &btmrvl_fwdump_fops);
dbg->status_dir = debugfs_create_dir("status", hdev->debugfs);
debugfs_create_u8("curpsmode", 0444, dbg->status_dir,