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/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022.03.02 FMD-AE first version
*/
#ifndef __DRV_USART_H__
#define __DRV_USART_H__
#include <rtthread.h>
#include "rtdevice.h"
#include <rthw.h>
#include "drv_dma.h"
int rt_hw_usart_init(void);
#if defined(SOC_SERIES_FT32F0)
#define DMA_INSTANCE_TYPE DMA_Channel_TypeDef
#endif
#if defined(SOC_SERIES_FT32F0)
#define UART_INSTANCE_CLEAR_FUNCTION USART_ClearITPendingBit
#endif
#define USART_TX_Pin GPIO_PIN_2
#define USART_TX_GPIO_Port GPIOA
#define USART_RX_Pin GPIO_PIN_3
#define USART_RX_GPIO_Port GPIOA
/* ft32 config class */
struct ft32_uart_config
{
const char *name;
USART_TypeDef *Instance;
IRQn_Type irq_type;
struct dma_config *dma_rx;
struct dma_config *dma_tx;
};
/* ft32 uart dirver class */
struct ft32_uart
{
USART_InitTypeDef Init;
struct ft32_uart_config *config;
#ifdef RT_SERIAL_USING_DMA
struct
{
DMA_InitTypeDef Init;
DMA_Channel_TypeDef *Instance;
rt_size_t last_index;
} dma_rx;
struct
{
DMA_InitTypeDef Init;
DMA_Channel_TypeDef *Instance;
} dma_tx;
#endif
rt_uint16_t uart_dma_flag;
struct rt_serial_device serial;
};
#endif /* __DRV_USART_H__ */
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