include/linux/extcon/extcon-gpio.h

   1 /*
   2  * Single-state GPIO extcon driver based on extcon class
   3  *
   4  * Copyright (C) 2012 Samsung Electronics
   5  * Author: MyungJoo Ham <myungjoo.ham@samsung.com>
   6  *
   7  * based on switch class driver
   8  * Copyright (C) 2008 Google, Inc.
   9  * Author: Mike Lockwood <lockwood@android.com>
  10  *
  11  * This software is licensed under the terms of the GNU General Public
  12  * License version 2, as published by the Free Software Foundation, and
  13  * may be copied, distributed, and modified under those terms.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  */
  20 #ifndef __EXTCON_GPIO_H__
  21 #define __EXTCON_GPIO_H__ __FILE__
  22
  23 #include <linux/extcon.h>
  24
  25 /**
  26  * struct gpio_extcon_pdata - A simple GPIO-controlled extcon device.
  27  * @extcon_id:          The unique id of specific external connector.
  28  * @gpio:               Corresponding GPIO.
  29  * @gpio_active_low:    Boolean describing whether gpio active state is 1 or 0
  30  *                      If true, low state of gpio means active.
  31  *                      If false, high state of gpio means active.
  32  * @debounce:           Debounce time for GPIO IRQ in ms.
  33  * @irq_flags:          IRQ Flags (e.g., IRQF_TRIGGER_LOW).
  34  * @check_on_resume:    Boolean describing whether to check the state of gpio
  35  *                      while resuming from sleep.
  36  */
  37 struct gpio_extcon_pdata {
  38         unsigned int extcon_id;
  39         unsigned gpio;
  40         bool gpio_active_low;
  41         unsigned long debounce;
  42         unsigned long irq_flags;
  43
  44         bool check_on_resume;
  45 };
  46
  47 #endif /* __EXTCON_GPIO_H__ */