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Diffstat (limited to 'drivers/hid/hid-wiimote-debug.c')
-rw-r--r--drivers/hid/hid-wiimote-debug.c52
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 0000000..6282e3c
--- /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);
+}
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