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