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53 lines
904 B
C
53 lines
904 B
C
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/*
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* Copyright (c) 2006-2020, 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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* 2020-11-20 greedyhao first version
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*/
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#ifndef DRV_USART_H__
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#define DRV_USART_H__
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#include "drv_common.h"
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#ifdef RT_USING_SERIAL
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/* an32 config class */
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struct ab32_uart_config
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{
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const char *name;
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hal_sfr_t instance;
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// struct dma_config *dma_rx;
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// struct dma_config *dma_tx;
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};
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/* ab32 uart driver class */
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struct ab32_uart
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{
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struct uart_handle handle;
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struct ab32_uart_config *config;
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#ifdef RT_SERIAL_USING_DMA
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struct
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{
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DMA_HandleTypeDef handle;
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rt_size_t last_index;
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} dma_rx;
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struct
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{
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DMA_HandleTypeDef handle;
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} dma_tx;
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#endif
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rt_uint16_t uart_dma_flag;
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struct rt_serial_device serial;
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};
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#endif
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int rt_hw_usart_init(void);
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#endif
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