61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
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/*
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* Copyright (C) 2022-2024, Xiaohua 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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* 2022-04-28 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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#include <rtdevice.h>
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#include "board_config.h"
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#include "drv_irq.h"
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#include "drv_dma.h"
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#ifdef BSP_USING_I2C
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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_i2c_config
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{
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const char *name;
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CM_I2C_TypeDef *Instance;
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rt_uint32_t clock;
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rt_uint32_t baudrate;
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rt_uint32_t timeout;
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struct dma_config *i2c_tx_dma;
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struct dma_config *i2c_rx_dma;
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};
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struct hc32_i2c
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{
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struct hc32_i2c_config *config;
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struct rt_i2c_bus_device i2c_bus;
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rt_uint8_t i2c_dma_flag;
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};
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/*******************************************************************************
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* Global pre-processor symbols/macros ('#define')
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******************************************************************************/
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#define I2C_USING_TX_DMA_FLAG (1U)
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#define I2C_USING_RX_DMA_FLAG (1U << 1)
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#ifdef __cplusplus
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}
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#endif
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#endif /* BSP_USING_I2C */
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#endif /* __DRV_I2C_H__ */
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