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/*

 * i2c-gpio interface to platform code

 *

 * Copyright (C) 2007 Atmel Corporation

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */

#ifndef _LINUX_I2C_GPIO_H

#define _LINUX_I2C_GPIO_H

/**

 * struct i2c_gpio_platform_data - Platform-dependent data for i2c-gpio

 * @sda_pin: GPIO pin ID to use for SDA

 * @scl_pin: GPIO pin ID to use for SCL

 * @udelay: signal toggle delay. SCL frequency is (500 / udelay) kHz

 * @timeout: clock stretching timeout in jiffies. If the slave keeps

 *      SCL low for longer than this, the transfer will time out.

 * @sda_is_open_drain: SDA is configured as open drain, i.e. the pin

 *      isn't actively driven high when setting the output value high.

 *      gpio_get_value() must return the actual pin state even if the

 *      pin is configured as an output.

 * @scl_is_open_drain: SCL is set up as open drain. Same requirements

 *      as for sda_is_open_drain apply.

 * @scl_is_output_only: SCL output drivers cannot be turned off.

 */

struct i2c_gpio_platform_data {

        unsigned int    sda_pin;

        unsigned int    scl_pin;

        int             udelay;

        int             timeout;

        unsigned int    sda_is_open_drain:1;

        unsigned int    scl_is_open_drain:1;

        unsigned int    scl_is_output_only:1;

};

#endif /* _LINUX_I2C_GPIO_H */