rt-thread/bsp/ESP32_C3/drivers/drv_hw_i2c.h

/*
 * Copyright (c) 2006-2023, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 *2023-03-28      Zxy          first version
 */
#ifndef __DRV_HW_I2C_H__
#define __DRV_HW_I2C_H__

#include <rtthread.h>
#include <rtdevice.h>
#include "sdkconfig.h"

#define WRITE_BIT I2C_MASTER_WRITE              /*!< I2C master write */
#define READ_BIT I2C_MASTER_READ                /*!< I2C master read */
#define ACK_CHECK_EN 0x1                        /*!< I2C master will check ack from slave*/
#define ACK_CHECK_DIS 0x0                       /*!< I2C master will not check ack from slave */
#define ACK_VAL 0x0                             /*!< I2C ack value */
#define NACK_VAL 0x1                            /*!< I2C nack value */
#define _I2C_NUMBER(num) I2C_NUM_##num
#define I2C_NUMBER(num) _I2C_NUMBER(num)
#define I2C_MASTER_NUM I2C_NUMBER(0) /*!< I2C port number for master dev */
#define I2C_MASTER_SCL_IO CONFIG_I2C_MASTER_SCL               /*!< gpio number for I2C master clock */
#define I2C_MASTER_SDA_IO CONFIG_I2C_MASTER_SDA               /*!< gpio number for I2C master data  */
#define CONFIG_I2C_MASTER_SCL 6
#define CONFIG_I2C_MASTER_SDA 5
int rt_hw_i2c_init(void);

#endif /* __DRV_HW_I2C_H__ */