rt-thread/bsp/hc32f4a0/drivers/drv_soft_i2c.h

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2020-12-25 14:33:03 +08:00
/*
* Copyright (C) 2020, Huada Semiconductor Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-10-30 CDT first version
*/
#ifndef __DRV_I2C_H__
#define __DRV_I2C_H__
/*******************************************************************************
* Include files
******************************************************************************/
#include <rtdevice.h>
#include "hc32_ddl.h"
/* C binding of definitions if building with C++ compiler */
#ifdef __cplusplus
extern "C"
{
#endif
/*******************************************************************************
* Global type definitions ('typedef')
******************************************************************************/
struct hc32_soft_i2c_config
{
rt_uint16_t scl_pin;
rt_uint16_t sda_pin;
const char *bus_name;
};
#ifdef BSP_USING_I2C1
#define I2C1_BUS_CONFIG \
{ \
.scl_pin = BSP_I2C1_SCL_PIN, \
.sda_pin = BSP_I2C1_SDA_PIN, \
.bus_name = "i2c1", \
}
#endif
#ifdef BSP_USING_I2C2
#define I2C2_BUS_CONFIG \
{ \
.scl = BSP_I2C2_SCL_PIN, \
.sda = BSP_I2C2_SDA_PIN, \
.bus_name = "i2c2", \
}
#endif
#ifdef BSP_USING_I2C3
#define I2C3_BUS_CONFIG \
{ \
.scl = BSP_I2C3_SCL_PIN, \
.sda = BSP_I2C3_SDA_PIN, \
.bus_name = "i2c3", \
}
#endif
#ifdef BSP_USING_I2C4
#define I2C4_BUS_CONFIG \
{ \
.scl = BSP_I2C4_SCL_PIN, \
.sda = BSP_I2C4_SDA_PIN, \
.bus_name = "i2c4", \
}
#endif
#ifdef BSP_USING_I2C5
#define I2C5_BUS_CONFIG \
{ \
.scl = BSP_I2C5_SCL_PIN, \
.sda = BSP_I2C5_SDA_PIN, \
.bus_name = "i2c5", \
}
#endif
#ifdef BSP_USING_I2C6
#define I2C6_BUS_CONFIG \
{ \
.scl = BSP_I2C6_SCL_PIN, \
.sda = BSP_I2C6_SDA_PIN, \
.bus_name = "i2c6", \
}
#endif
/**
*******************************************************************************
** \brief Open parameters.
*******************************************************************************
*/
struct hc32_i2c_config
{
rt_uint8_t scl;
rt_uint8_t sda;
const char *bus_name;
};
struct hc32_i2c
{
struct rt_i2c_bit_ops ops;
struct rt_i2c_bus_device i2c1_bus;
};
typedef struct hc32_i2c_instance
{
rt_uint32_t id;
void *handle;
stc_i2c_init_t init;
} hc32_i2c_instance_t;
int hc32_hw_i2c_init(void);
#ifdef __cplusplus
}
#endif
#endif /* __DRV_I2C_H__ */
/*******************************************************************************
* EOF (not truncated)
******************************************************************************/