66 lines
1.3 KiB
C
66 lines
1.3 KiB
C
/*
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* Copyright (c) 2006-2023, RT-Thread Development Team
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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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* 2024-02-17 Dyyt587 first version
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*/
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#ifndef __DRV_HARD_I2C_H__
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#define __DRV_HARD_I2C_H__
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#include "drv_config.h"
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#include <rtthread.h>
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#include "rtdevice.h"
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#include <rthw.h>
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#include <drv_common.h>
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#include "drv_dma.h"
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#include <ipc/completion.h>
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#if defined(RT_USING_I2C) && defined(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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struct stm32_i2c_config
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{
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const char *name;
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I2C_TypeDef *Instance;
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rt_uint32_t timing;
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rt_uint32_t timeout;
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IRQn_Type evirq_type;
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IRQn_Type erirq_type;
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struct dma_config *dma_rx, *dma_tx;
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};
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struct stm32_i2c
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{
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I2C_HandleTypeDef handle;
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struct
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{
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DMA_HandleTypeDef handle_rx;
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DMA_HandleTypeDef handle_tx;
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} dma;
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struct stm32_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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struct rt_completion completion;
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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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