1 files changed, 52 insertions, 0 deletions

diff --git a/drivers/hid/hid-wiimote-debug.c b/drivers/hid/hid-wiimote-debug.c
new file mode 100644
index 000000000000..6282e3c1a362
--- /dev/null
+++ b/drivers/hid/hid-wiimote-debug.c
@@ -0,0 +1,52 @@
+/*
+ * Debug support for HID Nintendo Wiimote devices
+ * Copyright (c) 2011 David Herrmann
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include "hid-wiimote.h"
+
+struct wiimote_debug {
+        struct wiimote_data *wdata;
+};
+
+int wiidebug_init(struct wiimote_data *wdata)
+{
+        struct wiimote_debug *dbg;
+        unsigned long flags;
+
+        dbg = kzalloc(sizeof(*dbg), GFP_KERNEL);
+        if (!dbg)
+                return -ENOMEM;
+
+        dbg->wdata = wdata;
+
+        spin_lock_irqsave(&wdata->state.lock, flags);
+        wdata->debug = dbg;
+        spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+        return 0;
+}
+
+void wiidebug_deinit(struct wiimote_data *wdata)
+{
+        struct wiimote_debug *dbg = wdata->debug;
+        unsigned long flags;
+
+        if (!dbg)
+                return;
+
+        spin_lock_irqsave(&wdata->state.lock, flags);
+        wdata->debug = NULL;
+        spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+        kfree(dbg);
+}