68 lines
1.3 KiB
C
68 lines
1.3 KiB
C
/*
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* Copyright (c) 2006-2022, 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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* 2022.03.02 FMD-AE 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 <rtthread.h>
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#include "rtdevice.h"
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#include <rthw.h>
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#include "drv_dma.h"
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int rt_hw_usart_init(void);
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#if defined(SOC_SERIES_FT32F0)
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#define DMA_INSTANCE_TYPE DMA_Channel_TypeDef
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#endif
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#if defined(SOC_SERIES_FT32F0)
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#define UART_INSTANCE_CLEAR_FUNCTION USART_ClearITPendingBit
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#endif
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#define USART_TX_Pin GPIO_PIN_2
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#define USART_TX_GPIO_Port GPIOA
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#define USART_RX_Pin GPIO_PIN_3
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#define USART_RX_GPIO_Port GPIOA
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/* ft32 config class */
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struct ft32_uart_config
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{
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const char *name;
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USART_TypeDef *Instance;
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IRQn_Type irq_type;
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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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/* ft32 uart dirver class */
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struct ft32_uart
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{
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USART_InitTypeDef Init;
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struct ft32_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_InitTypeDef Init;
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DMA_Channel_TypeDef *Instance;
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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_InitTypeDef Init;
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DMA_Channel_TypeDef *Instance;
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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 /* __DRV_USART_H__ */
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