projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| be48308a MH |
1 | /* |
| 2 | * External connector (extcon) class generic GPIO driver | |
| 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 | */ | |
| 21 | #ifndef __EXTCON_GPIO_H__ | |
| 22 | #define __EXTCON_GPIO_H__ __FILE__ | |
| 23 | ||
| 24 | #include <linux/extcon.h> | |
| 25 | ||
| 26 | /** | |
| 27 | * struct gpio_extcon_platform_data - A simple GPIO-controlled extcon device. | |
| a75e1c73 CC |
28 | * @name: The name of this GPIO extcon device. |
| 29 | * @gpio: Corresponding GPIO. | |
| 5bfbdc9c GR |
30 | * @gpio_active_low: Boolean describing whether gpio active state is 1 or 0 |
| 31 | * If true, low state of gpio means active. | |
| 32 | * If false, high state of gpio means active. | |
| a75e1c73 CC |
33 | * @debounce: Debounce time for GPIO IRQ in ms. |
| 34 | * @irq_flags: IRQ Flags (e.g., IRQF_TRIGGER_LOW). | |
| 35 | * @state_on: print_state is overriden with state_on if attached. | |
| 36 | * If NULL, default method of extcon class is used. | |
| 62364357 | 37 | * @state_off: print_state is overriden with state_off if detached. |
| a75e1c73 | 38 | * If NUll, default method of extcon class is used. |
| 62364357 GC |
39 | * @check_on_resume: Boolean describing whether to check the state of gpio |
| 40 | * while resuming from sleep. | |
| be48308a MH |
41 | * |
| 42 | * Note that in order for state_on or state_off to be valid, both state_on | |
| 43 | * and state_off should be not NULL. If at least one of them is NULL, | |
| 44 | * the print_state is not overriden. | |
| 45 | */ | |
| 46 | struct gpio_extcon_platform_data { | |
| 47 | const char *name; | |
| 48 | unsigned gpio; | |
| 5bfbdc9c | 49 | bool gpio_active_low; |
| be48308a MH |
50 | unsigned long debounce; |
| 51 | unsigned long irq_flags; | |
| 52 | ||
| 53 | /* if NULL, "0" or "1" will be printed */ | |
| 54 | const char *state_on; | |
| 55 | const char *state_off; | |
| 6544dfa5 | 56 | bool check_on_resume; |
| be48308a MH |
57 | }; |
| 58 | ||
| 59 | #endif /* __EXTCON_GPIO_H__ */ |