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/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-08-27 liYony the first version
*/
#ifndef __DRV_USART_H__
#define __DRV_USART_H__
#include <rtthread.h>
#include "rtdevice.h"
#include <rthw.h>
/* Do not use GPIO_Remap*/
#define GPIO_Remap_NONE 0
/* ch32 hardware config class */
struct ch32_uart_hw_config
{
rt_uint32_t uart_periph_clock;
rt_uint32_t gpio_periph_clock;
GPIO_TypeDef *tx_gpio_port;
rt_uint16_t tx_gpio_pin;
GPIO_TypeDef *rx_gpio_port;
rt_uint16_t rx_gpio_pin;
rt_uint32_t remap;
};
/* ch32 config class */
struct ch32_uart_config
{
const char *name;
USART_TypeDef *Instance;
IRQn_Type irq_type;
};
/* ch32 uart dirver class */
struct ch32_uart
{
struct ch32_uart_hw_config *hw_config;
struct ch32_uart_config *config;
USART_InitTypeDef Init;
struct rt_serial_device serial;
};
int rt_hw_usart_init(void);
#endif
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