diff options
Diffstat (limited to 'drivers/hid/hid-wiimote-debug.c')
-rw-r--r-- | drivers/hid/hid-wiimote-debug.c | 52 |
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); +} |