696 lines
20 KiB
C
696 lines
20 KiB
C
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/*
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* File : usart.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2009, RT-Thread Development Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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* 2009-01-05 Bernard the first version
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* 2010-03-29 Bernard remove interrupt Tx and DMA Rx mode
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* 2012-02-08 aozima update for F4.
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* 2012-07-28 aozima update for ART board.
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* 2016-05-28 armink add DMA Rx mode
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*/
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#include "stm32f4xx.h"
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#include "usart.h"
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#include "board.h"
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#include <rtdevice.h>
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#ifdef RT_USING_UART1
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#define USART1_RX_GPIO_CLK_ENABLE() __HAL_RCC_GPIOA_CLK_ENABLE()
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#define USART1_TX_GPIO_CLK_ENABLE() __HAL_RCC_GPIOA_CLK_ENABLE()
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/* Definition for USART1 Pins */
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#define USART1_TX_PIN GPIO_PIN_9
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#define USART1_TX_GPIO_PORT GPIOA
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#define USART1_TX_AF GPIO_AF7_USART1
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#define USART1_RX_PIN GPIO_PIN_10
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#define USART1_RX_GPIO_PORT GPIOA
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#define USART1_RX_AF GPIO_AF7_USART1
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#endif
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#ifdef RT_USING_UART2
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#define USART2_RX_GPIO_CLK_ENABLE() __HAL_RCC_GPIOA_CLK_ENABLE()
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#define USART2_TX_GPIO_CLK_ENABLE() __HAL_RCC_GPIOA_CLK_ENABLE()
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/* Definition for USART2 Pins */
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#define USART2_TX_PIN GPIO_PIN_2
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#define USART2_TX_GPIO_PORT GPIOA
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#define USART2_TX_AF GPIO_AF7_USART2
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#define USART2_RX_PIN GPIO_PIN_3
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#define USART2_RX_GPIO_PORT GPIOA
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#define USART2_RX_AF GPIO_AF7_USART2
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#endif
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#ifdef RT_USING_UART3
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#define USART3_RX_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE()
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#define USART3_TX_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE()
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/* Definition for USART3 Pins */
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#define USART3_TX_PIN GPIO_PIN_10
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#define USART3_TX_GPIO_PORT GPIOB
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#define USART3_TX_AF GPIO_AF7_USART3
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#define USART3_RX_PIN GPIO_PIN_11
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#define USART3_RX_GPIO_PORT GPIOB
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#define USART3_RX_AF GPIO_AF7_USART3
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#endif
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#ifdef RT_USING_UART4
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#define USART4_RX_GPIO_CLK_ENABLE() __HAL_RCC_GPIOC_CLK_ENABLE()
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#define USART4_TX_GPIO_CLK_ENABLE() __HAL_RCC_GPIOC_CLK_ENABLE()
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/* Definition for USART4 Pins */
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#define USART4_TX_PIN GPIO_PIN_10
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#define USART4_TX_GPIO_PORT GPIOC
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#define USART4_TX_AF GPIO_AF7_USART4
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#define USART4_RX_PIN GPIO_PIN_11
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#define USART4_RX_GPIO_PORT GPIOC
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#define USART4_RX_AF GPIO_AF7_USART4
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#endif
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#ifdef RT_USING_UART5
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#define USART5_RX_GPIO_CLK_ENABLE() __HAL_RCC_GPIOD_CLK_ENABLE()
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#define USART5_TX_GPIO_CLK_ENABLE() __HAL_RCC_GPIOC_CLK_ENABLE()
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/* Definition for USART5 Pins */
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#define USART5_TX_PIN GPIO_PIN_12
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#define USART5_TX_GPIO_PORT GPIOC
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#define USART5_TX_AF GPIO_AF7_USART5
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#define USART5_RX_PIN GPIO_PIN_2
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#define USART5_RX_GPIO_PORT GPIOD
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#define USART5_RX_AF GPIO_AF7_USART5
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#endif
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/* STM32 uart driver */
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struct stm32_uart
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{
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UART_HandleTypeDef UartHandle;
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IRQn_Type irq;
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};
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static rt_err_t stm32_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
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{
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struct stm32_uart *uart;
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RT_ASSERT(serial != RT_NULL);
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RT_ASSERT(cfg != RT_NULL);
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uart = (struct stm32_uart *)serial->parent.user_data;
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uart->UartHandle.Init.BaudRate = cfg->baud_rate;
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uart->UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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uart->UartHandle.Init.Mode = UART_MODE_TX_RX;
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uart->UartHandle.Init.OverSampling = UART_OVERSAMPLING_16;
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switch (cfg->data_bits)
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{
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case DATA_BITS_8:
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uart->UartHandle.Init.WordLength = UART_WORDLENGTH_8B;
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break;
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case DATA_BITS_9:
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uart->UartHandle.Init.WordLength = UART_WORDLENGTH_9B;
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break;
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default:
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uart->UartHandle.Init.WordLength = UART_WORDLENGTH_8B;
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break;
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}
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switch (cfg->stop_bits)
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{
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case STOP_BITS_1:
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uart->UartHandle.Init.StopBits = UART_STOPBITS_1;
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break;
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case STOP_BITS_2:
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uart->UartHandle.Init.StopBits = UART_STOPBITS_2;
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break;
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default:
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uart->UartHandle.Init.StopBits = UART_STOPBITS_1;
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break;
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}
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switch (cfg->parity)
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{
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case PARITY_NONE:
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uart->UartHandle.Init.Parity = UART_PARITY_NONE;
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break;
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case PARITY_ODD:
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uart->UartHandle.Init.Parity = UART_PARITY_ODD;
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break;
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case PARITY_EVEN:
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uart->UartHandle.Init.Parity = UART_PARITY_EVEN;
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break;
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default:
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uart->UartHandle.Init.Parity = UART_PARITY_NONE;
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break;
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}
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if (HAL_UART_Init(&uart->UartHandle) != HAL_OK)
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{
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return RT_ERROR;
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}
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return RT_EOK;
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}
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static rt_err_t stm32_control(struct rt_serial_device *serial, int cmd, void *arg)
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{
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struct stm32_uart *uart;
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RT_ASSERT(serial != RT_NULL);
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uart = (struct stm32_uart *)serial->parent.user_data;
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switch (cmd)
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{
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case RT_DEVICE_CTRL_CLR_INT:
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/* disable rx irq */
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NVIC_DisableIRQ(uart->irq);
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/* disable interrupt */
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__HAL_UART_DISABLE_IT(&uart->UartHandle, UART_IT_RXNE);
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break;
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case RT_DEVICE_CTRL_SET_INT:
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/* enable rx irq */
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NVIC_EnableIRQ(uart->irq);
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/* enable interrupt */
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__HAL_UART_ENABLE_IT(&uart->UartHandle, UART_IT_RXNE);
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break;
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}
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return RT_EOK;
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}
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static int stm32_putc(struct rt_serial_device *serial, char c)
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{
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struct stm32_uart *uart;
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RT_ASSERT(serial != RT_NULL);
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uart = (struct stm32_uart *)serial->parent.user_data;
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while((__HAL_UART_GET_FLAG(&uart->UartHandle, UART_FLAG_TXE) == RESET));
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uart->UartHandle.Instance->DR = c;
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return 1;
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}
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static int stm32_getc(struct rt_serial_device *serial)
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{
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int ch;
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struct stm32_uart *uart;
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RT_ASSERT(serial != RT_NULL);
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uart = (struct stm32_uart *)serial->parent.user_data;
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ch = -1;
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if (__HAL_UART_GET_FLAG(&uart->UartHandle, UART_FLAG_RXNE) != RESET)
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ch = uart->UartHandle.Instance->DR & 0xff;
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return ch;
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}
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/**
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* Uart common interrupt process. This need add to uart ISR.
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*
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* @param serial serial device
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*/
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static void uart_isr(struct rt_serial_device *serial) {
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struct stm32_uart *uart = (struct stm32_uart *) serial->parent.user_data;
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RT_ASSERT(uart != RT_NULL);
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/* UART in mode Receiver -------------------------------------------------*/
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if ((__HAL_UART_GET_FLAG(&uart->UartHandle, UART_FLAG_RXNE) != RESET) &&
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(__HAL_UART_GET_IT_SOURCE(&uart->UartHandle, UART_IT_RXNE) != RESET))
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{
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rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
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/* Clear RXNE interrupt flag */
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__HAL_UART_CLEAR_FLAG(&uart->UartHandle, UART_FLAG_RXNE);
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}
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}
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/**
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* @brief UART MSP Initialization
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* This function configures the hardware resources used in this example:
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* - Peripheral's clock enable
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* - Peripheral's GPIO Configuration
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* - NVIC configuration for UART interrupt request enable
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* @param huart: UART handle pointer
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* @retval None
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*/
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void HAL_UART_MspInit(UART_HandleTypeDef *huart)
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{
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GPIO_InitTypeDef GPIO_InitStruct;
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#if defined(RT_USING_UART1)
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if (huart->Instance == USART1)
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{
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/*##-1- Enable peripherals and GPIO Clocks #################################*/
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/* Enable GPIO TX/RX clock */
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USART1_TX_GPIO_CLK_ENABLE();
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USART1_RX_GPIO_CLK_ENABLE();
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/* Enable USARTx clock */
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__HAL_RCC_USART1_CLK_ENABLE();
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/*##-2- Configure peripheral GPIO ##########################################*/
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/* UART TX GPIO pin configuration */
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GPIO_InitStruct.Pin = USART1_TX_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
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GPIO_InitStruct.Alternate = USART1_TX_AF;
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HAL_GPIO_Init(USART1_TX_GPIO_PORT, &GPIO_InitStruct);
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/* UART RX GPIO pin configuration */
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GPIO_InitStruct.Pin = USART1_RX_PIN;
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GPIO_InitStruct.Alternate = USART1_RX_AF;
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HAL_GPIO_Init(USART1_RX_GPIO_PORT, &GPIO_InitStruct);
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HAL_NVIC_SetPriority(USART1_IRQn, 0, 1);
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HAL_NVIC_EnableIRQ(USART1_IRQn);
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}
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#endif
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#if defined(RT_USING_UART2)
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if (huart->Instance == USART2)
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{
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/*##-1- Enable peripherals and GPIO Clocks #################################*/
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/* Enable GPIO TX/RX clock */
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USART2_TX_GPIO_CLK_ENABLE();
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USART2_RX_GPIO_CLK_ENABLE();
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/* Enable USARTx clock */
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__HAL_RCC_USART2_CLK_ENABLE();
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/*##-2- Configure peripheral GPIO ##########################################*/
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/* UART TX GPIO pin configuration */
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GPIO_InitStruct.Pin = USART2_TX_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
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GPIO_InitStruct.Alternate = USART2_TX_AF;
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HAL_GPIO_Init(USART2_TX_GPIO_PORT, &GPIO_InitStruct);
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/* UART RX GPIO pin configuration */
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GPIO_InitStruct.Pin = USART2_RX_PIN;
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GPIO_InitStruct.Alternate = USART2_RX_AF;
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HAL_GPIO_Init(USART2_RX_GPIO_PORT, &GPIO_InitStruct);
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HAL_NVIC_SetPriority(USART2_IRQn, 0, 1);
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HAL_NVIC_EnableIRQ(USART2_IRQn);
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}
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#endif
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#if defined(RT_USING_UART3)
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if (huart->Instance == USART3)
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{
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/*##-1- Enable peripherals and GPIO Clocks #################################*/
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/* Enable GPIO TX/RX clock */
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USART3_TX_GPIO_CLK_ENABLE();
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USART3_RX_GPIO_CLK_ENABLE();
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/* Enable USARTx clock */
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__HAL_RCC_USART3_CLK_ENABLE();
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/*##-2- Configure peripheral GPIO ##########################################*/
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/* UART TX GPIO pin configuration */
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GPIO_InitStruct.Pin = USART3_TX_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
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GPIO_InitStruct.Alternate = USART3_TX_AF;
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HAL_GPIO_Init(USART3_TX_GPIO_PORT, &GPIO_InitStruct);
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/* UART RX GPIO pin configuration */
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GPIO_InitStruct.Pin = USART3_RX_PIN;
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GPIO_InitStruct.Alternate = USART3_RX_AF;
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HAL_GPIO_Init(USART3_RX_GPIO_PORT, &GPIO_InitStruct);
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HAL_NVIC_SetPriority(USART3_IRQn, 0, 1);
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HAL_NVIC_EnableIRQ(USART3_IRQn);
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}
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#endif
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#if defined(RT_USING_UART4)
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if (huart->Instance == USART4)
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{
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/*##-1- Enable peripherals and GPIO Clocks #################################*/
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/* Enable GPIO TX/RX clock */
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USART4_TX_GPIO_CLK_ENABLE();
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USART4_RX_GPIO_CLK_ENABLE();
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/* Enable USARTx clock */
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__HAL_RCC_USART4_CLK_ENABLE();
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/*##-2- Configure peripheral GPIO ##########################################*/
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/* UART TX GPIO pin configuration */
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GPIO_InitStruct.Pin = USART4_TX_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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|
|
GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
|
||
|
|
GPIO_InitStruct.Alternate = USART4_TX_AF;
|
||
|
|
|
||
|
|
HAL_GPIO_Init(USART4_TX_GPIO_PORT, &GPIO_InitStruct);
|
||
|
|
|
||
|
|
/* UART RX GPIO pin configuration */
|
||
|
|
GPIO_InitStruct.Pin = USART4_RX_PIN;
|
||
|
|
GPIO_InitStruct.Alternate = USART4_RX_AF;
|
||
|
|
|
||
|
|
HAL_GPIO_Init(USART4_RX_GPIO_PORT, &GPIO_InitStruct);
|
||
|
|
|
||
|
|
HAL_NVIC_SetPriority(USART4_IRQn, 0, 1);
|
||
|
|
HAL_NVIC_EnableIRQ(USART4_IRQn);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(RT_USING_UART5)
|
||
|
|
if (huart->Instance == USART5)
|
||
|
|
{
|
||
|
|
/*##-1- Enable peripherals and GPIO Clocks #################################*/
|
||
|
|
/* Enable GPIO TX/RX clock */
|
||
|
|
USART5_TX_GPIO_CLK_ENABLE();
|
||
|
|
USART5_RX_GPIO_CLK_ENABLE();
|
||
|
|
|
||
|
|
/* Enable USARTx clock */
|
||
|
|
__HAL_RCC_USART5_CLK_ENABLE();
|
||
|
|
|
||
|
|
/*##-2- Configure peripheral GPIO ##########################################*/
|
||
|
|
/* UART TX GPIO pin configuration */
|
||
|
|
GPIO_InitStruct.Pin = USART5_TX_PIN;
|
||
|
|
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
|
||
|
|
GPIO_InitStruct.Pull = GPIO_PULLUP;
|
||
|
|
GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
|
||
|
|
GPIO_InitStruct.Alternate = USART5_TX_AF;
|
||
|
|
|
||
|
|
HAL_GPIO_Init(USART5_TX_GPIO_PORT, &GPIO_InitStruct);
|
||
|
|
|
||
|
|
/* UART RX GPIO pin configuration */
|
||
|
|
GPIO_InitStruct.Pin = USART5_RX_PIN;
|
||
|
|
GPIO_InitStruct.Alternate = USART5_RX_AF;
|
||
|
|
|
||
|
|
HAL_GPIO_Init(USART5_RX_GPIO_PORT, &GPIO_InitStruct);
|
||
|
|
|
||
|
|
HAL_NVIC_SetPriority(USART5_IRQn, 0, 1);
|
||
|
|
HAL_NVIC_EnableIRQ(USART5_IRQn);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief UART MSP De-Initialization
|
||
|
|
* This function frees the hardware resources used in this example:
|
||
|
|
* - Disable the Peripheral's clock
|
||
|
|
* - Revert GPIO and NVIC configuration to their default state
|
||
|
|
* @param huart: UART handle pointer
|
||
|
|
* @retval None
|
||
|
|
*/
|
||
|
|
void HAL_UART_MspDeInit(UART_HandleTypeDef *huart)
|
||
|
|
{
|
||
|
|
#if defined(RT_USING_UART1)
|
||
|
|
if (huart->Instance == USART1)
|
||
|
|
{
|
||
|
|
/*##-1- Reset peripherals ##################################################*/
|
||
|
|
__HAL_RCC_USART1_FORCE_RESET();
|
||
|
|
__HAL_RCC_USART1_RELEASE_RESET();
|
||
|
|
|
||
|
|
/*##-2- Disable peripherals and GPIO Clocks #################################*/
|
||
|
|
/* Configure UART Tx as alternate function */
|
||
|
|
HAL_GPIO_DeInit(USART1_TX_GPIO_PORT, USART1_TX_PIN);
|
||
|
|
/* Configure UART Rx as alternate function */
|
||
|
|
HAL_GPIO_DeInit(USART1_RX_GPIO_PORT, USART1_RX_PIN);
|
||
|
|
|
||
|
|
HAL_NVIC_DisableIRQ(USART1_IRQn);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(RT_USING_UART2)
|
||
|
|
if (huart->Instance == USART2)
|
||
|
|
{
|
||
|
|
/*##-1- Reset peripherals ##################################################*/
|
||
|
|
__HAL_RCC_USART2_FORCE_RESET();
|
||
|
|
__HAL_RCC_USART2_RELEASE_RESET();
|
||
|
|
|
||
|
|
/*##-2- Disable peripherals and GPIO Clocks #################################*/
|
||
|
|
/* Configure UART Tx as alternate function */
|
||
|
|
HAL_GPIO_DeInit(USART2_TX_GPIO_PORT, USART2_TX_PIN);
|
||
|
|
/* Configure UART Rx as alternate function */
|
||
|
|
HAL_GPIO_DeInit(USART2_RX_GPIO_PORT, USART2_RX_PIN);
|
||
|
|
|
||
|
|
HAL_NVIC_DisableIRQ(USART2_IRQn);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(RT_USING_UART3)
|
||
|
|
if (huart->Instance == USART3)
|
||
|
|
{
|
||
|
|
/*##-1- Reset peripherals ##################################################*/
|
||
|
|
__HAL_RCC_USART3_FORCE_RESET();
|
||
|
|
__HAL_RCC_USART3_RELEASE_RESET();
|
||
|
|
|
||
|
|
/*##-2- Disable peripherals and GPIO Clocks #################################*/
|
||
|
|
/* Configure UART Tx as alternate function */
|
||
|
|
HAL_GPIO_DeInit(USART3_TX_GPIO_PORT, USART3_TX_PIN);
|
||
|
|
/* Configure UART Rx as alternate function */
|
||
|
|
HAL_GPIO_DeInit(USART3_RX_GPIO_PORT, USART3_RX_PIN);
|
||
|
|
|
||
|
|
HAL_NVIC_DisableIRQ(USART3_IRQn);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(RT_USING_UART4)
|
||
|
|
if (huart->Instance == USART4)
|
||
|
|
{
|
||
|
|
/*##-1- Reset peripherals ##################################################*/
|
||
|
|
__HAL_RCC_USART4_FORCE_RESET();
|
||
|
|
__HAL_RCC_USART4_RELEASE_RESET();
|
||
|
|
|
||
|
|
/*##-2- Disable peripherals and GPIO Clocks #################################*/
|
||
|
|
/* Configure UART Tx as alternate function */
|
||
|
|
HAL_GPIO_DeInit(USART4_TX_GPIO_PORT, USART4_TX_PIN);
|
||
|
|
/* Configure UART Rx as alternate function */
|
||
|
|
HAL_GPIO_DeInit(USART4_RX_GPIO_PORT, USART4_RX_PIN);
|
||
|
|
|
||
|
|
HAL_NVIC_DisableIRQ(USART4_IRQn);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(RT_USING_UART5)
|
||
|
|
if (huart->Instance == USART5)
|
||
|
|
{
|
||
|
|
/*##-1- Reset peripherals ##################################################*/
|
||
|
|
__HAL_RCC_USART5_FORCE_RESET();
|
||
|
|
__HAL_RCC_USART5_RELEASE_RESET();
|
||
|
|
|
||
|
|
/*##-2- Disable peripherals and GPIO Clocks #################################*/
|
||
|
|
/* Configure UART Tx as alternate function */
|
||
|
|
HAL_GPIO_DeInit(USART5_TX_GPIO_PORT, USART5_TX_PIN);
|
||
|
|
/* Configure UART Rx as alternate function */
|
||
|
|
HAL_GPIO_DeInit(USART5_RX_GPIO_PORT, USART5_RX_PIN);
|
||
|
|
|
||
|
|
HAL_NVIC_DisableIRQ(USART5_IRQn);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
static const struct rt_uart_ops stm32_uart_ops =
|
||
|
|
{
|
||
|
|
stm32_configure,
|
||
|
|
stm32_control,
|
||
|
|
stm32_putc,
|
||
|
|
stm32_getc,
|
||
|
|
};
|
||
|
|
|
||
|
|
#if defined(RT_USING_UART1)
|
||
|
|
/* UART1 device driver structure */
|
||
|
|
struct stm32_uart uart1 =
|
||
|
|
{
|
||
|
|
{USART1},
|
||
|
|
USART1_IRQn,
|
||
|
|
};
|
||
|
|
struct rt_serial_device serial1;
|
||
|
|
|
||
|
|
void USART1_IRQHandler(void)
|
||
|
|
{
|
||
|
|
/* enter interrupt */
|
||
|
|
rt_interrupt_enter();
|
||
|
|
|
||
|
|
uart_isr(&serial1);
|
||
|
|
|
||
|
|
/* leave interrupt */
|
||
|
|
rt_interrupt_leave();
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* RT_USING_UART1 */
|
||
|
|
|
||
|
|
#if defined(RT_USING_UART2)
|
||
|
|
/* UART2 device driver structure */
|
||
|
|
struct stm32_uart uart2 =
|
||
|
|
{
|
||
|
|
{USART2},
|
||
|
|
USART2_IRQn,
|
||
|
|
};
|
||
|
|
struct rt_serial_device serial2;
|
||
|
|
|
||
|
|
void USART2_IRQHandler(void)
|
||
|
|
{
|
||
|
|
/* enter interrupt */
|
||
|
|
rt_interrupt_enter();
|
||
|
|
|
||
|
|
uart_isr(&serial2);
|
||
|
|
|
||
|
|
/* leave interrupt */
|
||
|
|
rt_interrupt_leave();
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* RT_USING_UART2 */
|
||
|
|
|
||
|
|
#if defined(RT_USING_UART3)
|
||
|
|
/* UART3 device driver structure */
|
||
|
|
struct stm32_uart uart3 =
|
||
|
|
{
|
||
|
|
{USART3},
|
||
|
|
USART3_IRQn,
|
||
|
|
};
|
||
|
|
struct rt_serial_device serial3;
|
||
|
|
|
||
|
|
void USART3_IRQHandler(void)
|
||
|
|
{
|
||
|
|
/* enter interrupt */
|
||
|
|
rt_interrupt_enter();
|
||
|
|
|
||
|
|
uart_isr(&serial3);
|
||
|
|
|
||
|
|
/* leave interrupt */
|
||
|
|
rt_interrupt_leave();
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* RT_USING_UART3 */
|
||
|
|
|
||
|
|
#if defined(RT_USING_UART4)
|
||
|
|
/* UART4 device driver structure */
|
||
|
|
struct stm32_uart uart4 =
|
||
|
|
{
|
||
|
|
{UART4},
|
||
|
|
UART4_IRQn,
|
||
|
|
};
|
||
|
|
struct rt_serial_device serial4;
|
||
|
|
|
||
|
|
void UART4_IRQHandler(void)
|
||
|
|
{
|
||
|
|
/* enter interrupt */
|
||
|
|
rt_interrupt_enter();
|
||
|
|
|
||
|
|
uart_isr(&serial4);
|
||
|
|
|
||
|
|
/* leave interrupt */
|
||
|
|
rt_interrupt_leave();
|
||
|
|
}
|
||
|
|
#endif /* RT_USING_UART4 */
|
||
|
|
|
||
|
|
#if defined(RT_USING_UART5)
|
||
|
|
/* UART5 device driver structure */
|
||
|
|
struct stm32_uart uart5 =
|
||
|
|
{
|
||
|
|
{UART5},
|
||
|
|
UART5_IRQn,
|
||
|
|
};
|
||
|
|
struct rt_serial_device serial5;
|
||
|
|
|
||
|
|
void UART5_IRQHandler(void)
|
||
|
|
{
|
||
|
|
/* enter interrupt */
|
||
|
|
rt_interrupt_enter();
|
||
|
|
|
||
|
|
uart_isr(&serial5);
|
||
|
|
|
||
|
|
/* leave interrupt */
|
||
|
|
rt_interrupt_leave();
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* RT_USING_UART5 */
|
||
|
|
|
||
|
|
int stm32_hw_usart_init(void)
|
||
|
|
{
|
||
|
|
struct stm32_uart *uart;
|
||
|
|
struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
|
||
|
|
|
||
|
|
#ifdef RT_USING_UART1
|
||
|
|
uart = &uart1;
|
||
|
|
uart->UartHandle.Instance = USART1;
|
||
|
|
|
||
|
|
serial1.ops = &stm32_uart_ops;
|
||
|
|
serial1.config = config;
|
||
|
|
|
||
|
|
/* register UART1 device */
|
||
|
|
rt_hw_serial_register(&serial1,
|
||
|
|
"uart1",
|
||
|
|
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
|
||
|
|
uart);
|
||
|
|
#endif /* RT_USING_UART1 */
|
||
|
|
|
||
|
|
#ifdef RT_USING_UART2
|
||
|
|
uart = &uart2;
|
||
|
|
uart->UartHandle.Instance = USART2;
|
||
|
|
|
||
|
|
serial2.ops = &stm32_uart_ops;
|
||
|
|
serial2.config = config;
|
||
|
|
|
||
|
|
/* register UART1 device */
|
||
|
|
rt_hw_serial_register(&serial2,
|
||
|
|
"uart2",
|
||
|
|
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
|
||
|
|
uart);
|
||
|
|
#endif /* RT_USING_UART2 */
|
||
|
|
|
||
|
|
#ifdef RT_USING_UART3
|
||
|
|
uart = &uart3;
|
||
|
|
uart->UartHandle.Instance = USART3;
|
||
|
|
|
||
|
|
serial3.ops = &stm32_uart_ops;
|
||
|
|
serial3.config = config;
|
||
|
|
|
||
|
|
/* register UART3 device */
|
||
|
|
rt_hw_serial_register(&serial3,
|
||
|
|
"uart3",
|
||
|
|
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
|
||
|
|
uart);
|
||
|
|
#endif /* RT_USING_UART3 */
|
||
|
|
|
||
|
|
#ifdef RT_USING_UART4
|
||
|
|
uart = &uart4;
|
||
|
|
uart->UartHandle.Instance = USART4;
|
||
|
|
|
||
|
|
serial4.ops = &stm32_uart_ops;
|
||
|
|
serial4.config = config;
|
||
|
|
|
||
|
|
/* register UART4 device */
|
||
|
|
rt_hw_serial_register(&serial4,
|
||
|
|
"uart4",
|
||
|
|
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
|
||
|
|
uart);
|
||
|
|
#endif /* RT_USING_UART4 */
|
||
|
|
|
||
|
|
#ifdef RT_USING_UART5
|
||
|
|
uart = &uart5;
|
||
|
|
uart->UartHandle.Instance = USART5;
|
||
|
|
|
||
|
|
serial5.ops = &stm32_uart_ops;
|
||
|
|
serial5.config = config;
|
||
|
|
|
||
|
|
/* register UART5 device */
|
||
|
|
rt_hw_serial_register(&serial5,
|
||
|
|
"uart5",
|
||
|
|
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
|
||
|
|
uart);
|
||
|
|
#endif /* RT_USING_UART5 */
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
INIT_BOARD_EXPORT(stm32_hw_usart_init);
|