target/linux/lantiq/files-3.3/arch/mips/include/asm/mach-lantiq/dev-gpio-buttons.h

   1 /*
   2  *  Lantiq GPIO button support
   3  *
   4  *  Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
   5  *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
   6  *
   7  *  This program is free software; you can redistribute it and/or modify it
   8  *  under the terms of the GNU General Public License version 2 as published
   9  *  by the Free Software Foundation.
  10  */
  11
  12 #ifndef _LANTIQ_DEV_GPIO_BUTTONS_H
  13 #define _LANTIQ_DEV_GPIO_BUTTONS_H
  14
  15 #include <linux/input.h>
  16 #include <linux/gpio_keys.h>
  17
  18 #define LTQ_KEYS_POLL_INTERVAL          20 /* msecs */
  19 #define LTQ_KEYS_DEBOUNCE_INTERVAL      (3 * LTQ_KEYS_POLL_INTERVAL)
  20
  21 void ltq_register_gpio_keys_polled(int id,
  22                                       unsigned poll_interval,
  23                                       unsigned nbuttons,
  24                                       struct gpio_keys_button *buttons);
  25
  26 #endif /* _LANTIQ_DEV_GPIO_BUTTONS_H */