linux-hardened/include/linux/rfkill-gpio.h
Sangwook Lee e209c5a7ed net:rfkill: add a gpio setup function into GPIO rfkill
Add a gpio setup function which gives a chance to set up
platform specific configuration such as pin multiplexing,
input/output direction at the runtime or booting time.

Signed-off-by: Sangwook Lee <sangwook.lee@linaro.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-03 15:19:19 -04:00

47 lines
1.6 KiB
C

/*
* Copyright (c) 2011, NVIDIA Corporation.
*
* 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.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __RFKILL_GPIO_H
#define __RFKILL_GPIO_H
#include <linux/types.h>
#include <linux/rfkill.h>
/**
* struct rfkill_gpio_platform_data - platform data for rfkill gpio device.
* for unused gpio's, the expected value is -1.
* @name: name for the gpio rf kill instance
* @reset_gpio: GPIO which is used for reseting rfkill switch
* @shutdown_gpio: GPIO which is used for shutdown of rfkill switch
* @power_clk_name: [optional] name of clk to turn off while blocked
* @gpio_runtime_close: clean up platform specific gpio configuration
* @gpio_runtime_setup: set up platform specific gpio configuration
*/
struct rfkill_gpio_platform_data {
char *name;
int reset_gpio;
int shutdown_gpio;
const char *power_clk_name;
enum rfkill_type type;
void (*gpio_runtime_close)(struct platform_device *);
int (*gpio_runtime_setup)(struct platform_device *);
};
#endif /* __RFKILL_GPIO_H */