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/*
* Copyright (C) 2022-2024, Xiaohua Semiconductor Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-04-28 CDT first version
*/
#ifndef __DRV_I2C_H__
#define __DRV_I2C_H__
#include <rtdevice.h>
#include "board_config.h"
#include "drv_irq.h"
#include "drv_dma.h"
#ifdef BSP_USING_I2C
/* C binding of definitions if building with C++ compiler */
#ifdef __cplusplus
extern "C"
{
#endif
/*******************************************************************************
* Global type definitions ('typedef')
******************************************************************************/
struct hc32_i2c_config
{
const char *name;
CM_I2C_TypeDef *Instance;
rt_uint32_t clock;
rt_uint32_t baudrate;
rt_uint32_t timeout;
struct dma_config *i2c_tx_dma;
struct dma_config *i2c_rx_dma;
};
struct hc32_i2c
{
struct hc32_i2c_config *config;
struct rt_i2c_bus_device i2c_bus;
rt_uint8_t i2c_dma_flag;
};
/*******************************************************************************
* Global pre-processor symbols/macros ('#define')
******************************************************************************/
#define I2C_USING_TX_DMA_FLAG (1U)
#define I2C_USING_RX_DMA_FLAG (1U << 1)
#ifdef __cplusplus
}
#endif
#endif /* BSP_USING_I2C */
#endif /* __DRV_I2C_H__ */
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