dev_i2c_bit_ops.h

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/*
 * Copyright (c) 2006-2023, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author        Notes
 * 2012-04-25     weety         first version
 */
 
#ifndef __DEV_I2C_BIT_OPS_H__
#define __DEV_I2C_BIT_OPS_H__
 
#ifdef __cplusplus
extern "C" {
#endif
 
struct rt_i2c_bit_ops
{
    void *data;            /* private data for lowlevel routines */
    void (*set_sda)(void *data, rt_int32_t state);
    void (*set_scl)(void *data, rt_int32_t state);
    rt_int32_t (*get_sda)(void *data);
    rt_int32_t (*get_scl)(void *data);
 
    void (*udelay)(rt_uint32_t us);
 
    rt_uint32_t delay_us;  /* scl and sda line delay */
    rt_uint32_t timeout;   /* in tick */
 
    void (*pin_init)(void);
    rt_bool_t i2c_pin_init_flag;
};
 
rt_err_t rt_i2c_bit_add_bus(struct rt_i2c_bus_device *bus,
                            const char               *bus_name);
 
#ifdef __cplusplus
}
#endif
 
#endif