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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2009-01-05 Bernard the first version
* 2022-06-09 THEWON first version for serialX
*/
#ifndef __DRV_USARTX_H__
#define __DRV_USARTX_H__
#include <rthw.h>
#include <rtthread.h>
#include <rtdevice.h>
#define UART_ENABLE_IRQ(n) NVIC_EnableIRQ((n))
#define UART_DISABLE_IRQ(n) NVIC_DisableIRQ((n))
/* stm32 config class */
struct gd32_uart_config
{
const char *name;
IRQn_Type irqn;
rcu_periph_enum per_clk;
rcu_periph_enum tx_gpio_clk;
rcu_periph_enum rx_gpio_clk;
uint32_t tx_port;
uint16_t tx_af;
uint16_t tx_pin;
uint32_t rx_port;
uint16_t rx_af;
uint16_t rx_pin;
};
struct gd32_uart_dma
{
/* dma channel */
uint32_t dma_periph;
dma_channel_enum dma_channel;
dma_subperipheral_enum dma_subperi;
/* dma irq channel */
IRQn_Type dma_irq;
};
/* gd32 uart driver class */
struct gd32_uart
{
uint32_t uart_periph;
struct rt_serial_device serial;
struct gd32_uart_config uart_config;
#ifdef RT_SERIAL_USING_DMA
rt_bool_t dmaTxing;
struct gd32_uart_dma dma_rx;
struct gd32_uart_dma dma_tx;
#endif
};
int rt_hw_usart_init(void);
#endif // __DRV_USARTX_H__
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