1139 lines
33 KiB
C
1139 lines
33 KiB
C
/*
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* Copyright (c) 2006-2021, 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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* 2021-06-01 KyleChan first version
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*/
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#include "board.h"
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#include "drv_usart_v2.h"
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#ifdef RT_USING_SERIAL_V2
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//#define DRV_DEBUG
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#define DBG_TAG "drv.usart"
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#ifdef DRV_DEBUG
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#define DBG_LVL DBG_LOG
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#else
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#define DBG_LVL DBG_INFO
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#endif /* DRV_DEBUG */
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#include <rtdbg.h>
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#if !defined(BSP_USING_UART1) && !defined(BSP_USING_UART2) && !defined(BSP_USING_UART3) && \
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!defined(BSP_USING_UART4) && !defined(BSP_USING_UART5) && !defined(BSP_USING_UART6) && \
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!defined(BSP_USING_UART7) && !defined(BSP_USING_UART8) && !defined(BSP_USING_LPUART1)
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#error "Please define at least one BSP_USING_UARTx"
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/* this driver can be disabled at menuconfig -> RT-Thread Components -> Device Drivers */
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#endif
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#ifdef RT_SERIAL_USING_DMA
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static void stm32_dma_config(struct rt_serial_device *serial, rt_ubase_t flag);
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#endif
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enum
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{
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#ifdef BSP_USING_UART1
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UART1_INDEX,
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#endif
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#ifdef BSP_USING_UART2
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UART2_INDEX,
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#endif
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#ifdef BSP_USING_UART3
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UART3_INDEX,
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#endif
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#ifdef BSP_USING_UART4
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UART4_INDEX,
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#endif
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#ifdef BSP_USING_UART5
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UART5_INDEX,
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#endif
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#ifdef BSP_USING_UART6
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UART6_INDEX,
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#endif
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#ifdef BSP_USING_UART7
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UART7_INDEX,
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#endif
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#ifdef BSP_USING_UART8
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UART8_INDEX,
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#endif
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#ifdef BSP_USING_LPUART1
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LPUART1_INDEX,
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#endif
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};
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static struct stm32_uart_config uart_config[] =
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{
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#ifdef BSP_USING_UART1
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UART1_CONFIG,
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#endif
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#ifdef BSP_USING_UART2
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UART2_CONFIG,
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#endif
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#ifdef BSP_USING_UART3
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UART3_CONFIG,
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#endif
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#ifdef BSP_USING_UART4
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UART4_CONFIG,
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#endif
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#ifdef BSP_USING_UART5
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UART5_CONFIG,
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#endif
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#ifdef BSP_USING_UART6
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UART6_CONFIG,
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#endif
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#ifdef BSP_USING_UART7
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UART7_CONFIG,
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#endif
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#ifdef BSP_USING_UART8
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UART8_CONFIG,
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#endif
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#ifdef BSP_USING_LPUART1
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LPUART1_CONFIG,
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#endif
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};
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static struct stm32_uart uart_obj[sizeof(uart_config) / sizeof(uart_config[0])] = {0};
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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 = rt_container_of(serial, struct stm32_uart, serial);
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uart->handle.Instance = uart->config->Instance;
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uart->handle.Init.BaudRate = cfg->baud_rate;
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uart->handle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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uart->handle.Init.Mode = UART_MODE_TX_RX;
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uart->handle.Init.OverSampling = UART_OVERSAMPLING_16;
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if(uart->handle.Instance == USART3)
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{
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uart->handle.Init.HwFlowCtl = UART_HWCONTROL_RTS_CTS;
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}
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switch (cfg->data_bits)
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{
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case DATA_BITS_8:
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if (cfg->parity == PARITY_ODD || cfg->parity == PARITY_EVEN)
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uart->handle.Init.WordLength = UART_WORDLENGTH_9B;
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else
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uart->handle.Init.WordLength = UART_WORDLENGTH_8B;
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break;
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case DATA_BITS_9:
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uart->handle.Init.WordLength = UART_WORDLENGTH_9B;
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break;
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default:
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uart->handle.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->handle.Init.StopBits = UART_STOPBITS_1;
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break;
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case STOP_BITS_2:
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uart->handle.Init.StopBits = UART_STOPBITS_2;
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break;
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default:
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uart->handle.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->handle.Init.Parity = UART_PARITY_NONE;
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break;
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case PARITY_ODD:
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uart->handle.Init.Parity = UART_PARITY_ODD;
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break;
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case PARITY_EVEN:
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uart->handle.Init.Parity = UART_PARITY_EVEN;
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break;
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default:
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uart->handle.Init.Parity = UART_PARITY_NONE;
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break;
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}
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#ifdef RT_SERIAL_USING_DMA
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uart->dma_rx.remaining_cnt = serial->config.rx_bufsz;
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#endif
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if (HAL_UART_Init(&uart->handle) != 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_ubase_t ctrl_arg = (rt_ubase_t)arg;
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RT_ASSERT(serial != RT_NULL);
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uart = rt_container_of(serial, struct stm32_uart, serial);
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if(ctrl_arg & (RT_DEVICE_FLAG_RX_BLOCKING | RT_DEVICE_FLAG_RX_NON_BLOCKING))
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{
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if (uart->uart_dma_flag & RT_DEVICE_FLAG_DMA_RX)
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ctrl_arg = RT_DEVICE_FLAG_DMA_RX;
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else
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ctrl_arg = RT_DEVICE_FLAG_INT_RX;
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}
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else if(ctrl_arg & (RT_DEVICE_FLAG_TX_BLOCKING | RT_DEVICE_FLAG_TX_NON_BLOCKING))
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{
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if (uart->uart_dma_flag & RT_DEVICE_FLAG_DMA_TX)
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ctrl_arg = RT_DEVICE_FLAG_DMA_TX;
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else
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ctrl_arg = RT_DEVICE_FLAG_INT_TX;
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}
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switch (cmd)
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{
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/* disable interrupt */
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case RT_DEVICE_CTRL_CLR_INT:
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NVIC_DisableIRQ(uart->config->irq_type);
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if (ctrl_arg == RT_DEVICE_FLAG_INT_RX)
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__HAL_UART_DISABLE_IT(&(uart->handle), UART_IT_RXNE);
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else if (ctrl_arg == RT_DEVICE_FLAG_INT_TX)
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__HAL_UART_DISABLE_IT(&(uart->handle), UART_IT_TXE);
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#ifdef RT_SERIAL_USING_DMA
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else if (ctrl_arg == RT_DEVICE_FLAG_DMA_RX)
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{
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__HAL_UART_DISABLE_IT(&(uart->handle), UART_IT_RXNE);
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HAL_NVIC_DisableIRQ(uart->config->dma_rx->dma_irq);
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if (HAL_DMA_Abort(&(uart->dma_rx.handle)) != HAL_OK)
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{
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RT_ASSERT(0);
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}
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if (HAL_DMA_DeInit(&(uart->dma_rx.handle)) != HAL_OK)
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{
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RT_ASSERT(0);
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}
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}
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else if(ctrl_arg == RT_DEVICE_FLAG_DMA_TX)
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{
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__HAL_UART_DISABLE_IT(&(uart->handle), UART_IT_TC);
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HAL_NVIC_DisableIRQ(uart->config->dma_tx->dma_irq);
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if (HAL_DMA_DeInit(&(uart->dma_tx.handle)) != HAL_OK)
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{
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RT_ASSERT(0);
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}
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}
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#endif
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break;
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case RT_DEVICE_CTRL_SET_INT:
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HAL_NVIC_SetPriority(uart->config->irq_type, 1, 0);
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HAL_NVIC_EnableIRQ(uart->config->irq_type);
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if (ctrl_arg == RT_DEVICE_FLAG_INT_RX)
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__HAL_UART_ENABLE_IT(&(uart->handle), UART_IT_RXNE);
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else if (ctrl_arg == RT_DEVICE_FLAG_INT_TX)
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__HAL_UART_ENABLE_IT(&(uart->handle), UART_IT_TXE);
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break;
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case RT_DEVICE_CTRL_CONFIG:
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if (ctrl_arg & (RT_DEVICE_FLAG_DMA_RX | RT_DEVICE_FLAG_DMA_TX))
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{
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#ifdef RT_SERIAL_USING_DMA
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stm32_dma_config(serial, ctrl_arg);
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#endif
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}
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else
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stm32_control(serial, RT_DEVICE_CTRL_SET_INT, (void *)ctrl_arg);
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break;
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case RT_DEVICE_CHECK_OPTMODE:
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{
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if (ctrl_arg & RT_DEVICE_FLAG_DMA_TX)
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return RT_SERIAL_TX_BLOCKING_NO_BUFFER;
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else
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return RT_SERIAL_TX_BLOCKING_BUFFER;
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}
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case RT_DEVICE_CTRL_CLOSE:
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if (HAL_UART_DeInit(&(uart->handle)) != HAL_OK )
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{
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RT_ASSERT(0)
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}
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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 = rt_container_of(serial, struct stm32_uart, serial);
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while (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_TC) == RESET);
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UART_INSTANCE_CLEAR_FUNCTION(&(uart->handle), UART_FLAG_TC);
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UART_SET_TDR(&uart->handle, 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 = rt_container_of(serial, struct stm32_uart, serial);
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ch = -1;
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if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_RXNE) != RESET)
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ch = UART_GET_RDR(&uart->handle);
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return ch;
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}
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static rt_size_t stm32_transmit(struct rt_serial_device *serial,
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rt_uint8_t *buf,
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rt_size_t size,
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rt_uint32_t tx_flag)
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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(buf != RT_NULL);
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uart = rt_container_of(serial, struct stm32_uart, serial);
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if (uart->uart_dma_flag & RT_DEVICE_FLAG_DMA_TX)
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{
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HAL_UART_Transmit_DMA(&uart->handle, buf, size);
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return size;
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}
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stm32_control(serial, RT_DEVICE_CTRL_SET_INT, (void *)tx_flag);
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return size;
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}
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#ifdef RT_SERIAL_USING_DMA
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static void dma_recv_isr(struct rt_serial_device *serial, rt_uint8_t isr_flag)
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{
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struct stm32_uart *uart;
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rt_base_t level;
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rt_size_t recv_len, counter;
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RT_ASSERT(serial != RT_NULL);
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uart = rt_container_of(serial, struct stm32_uart, serial);
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level = rt_hw_interrupt_disable();
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recv_len = 0;
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counter = __HAL_DMA_GET_COUNTER(&(uart->dma_rx.handle));
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switch (isr_flag)
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{
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case UART_RX_DMA_IT_IDLE_FLAG:
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if (counter <= uart->dma_rx.remaining_cnt)
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recv_len = uart->dma_rx.remaining_cnt - counter;
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else
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recv_len = serial->config.rx_bufsz + uart->dma_rx.remaining_cnt - counter;
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break;
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case UART_RX_DMA_IT_HT_FLAG:
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if (counter < uart->dma_rx.remaining_cnt)
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recv_len = uart->dma_rx.remaining_cnt - counter;
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break;
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case UART_RX_DMA_IT_TC_FLAG:
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if(counter >= uart->dma_rx.remaining_cnt)
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recv_len = serial->config.rx_bufsz + uart->dma_rx.remaining_cnt - counter;
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default:
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break;
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}
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if (recv_len)
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{
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uart->dma_rx.remaining_cnt = counter;
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rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_DMADONE | (recv_len << 8));
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}
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rt_hw_interrupt_enable(level);
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}
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#endif /* RT_SERIAL_USING_DMA */
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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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{
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struct stm32_uart *uart;
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RT_ASSERT(serial != RT_NULL);
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uart = rt_container_of(serial, struct stm32_uart, serial);
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/* If the Read data register is not empty and the RXNE interrupt is enabled （RDR） */
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if ((__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_RXNE) != RESET) &&
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(__HAL_UART_GET_IT_SOURCE(&(uart->handle), UART_IT_RXNE) != RESET))
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{
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struct rt_serial_rx_fifo *rx_fifo;
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rx_fifo = (struct rt_serial_rx_fifo *) serial->serial_rx;
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RT_ASSERT(rx_fifo != RT_NULL);
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rt_ringbuffer_putchar(&(rx_fifo->rb), UART_GET_RDR(&uart->handle));
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rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
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}
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/* If the Transmit data register is empty and the TXE interrupt enable is enabled （TDR）*/
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else if ((__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_TXE) != RESET) &&
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(__HAL_UART_GET_IT_SOURCE(&(uart->handle), UART_IT_TXE)) != RESET)
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{
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struct rt_serial_tx_fifo *tx_fifo;
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tx_fifo = (struct rt_serial_tx_fifo *) serial->serial_tx;
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RT_ASSERT(tx_fifo != RT_NULL);
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rt_uint8_t put_char = 0;
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if (rt_ringbuffer_getchar(&(tx_fifo->rb), &put_char))
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{
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UART_SET_TDR(&uart->handle, put_char);
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}
|
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else
|
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{
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__HAL_UART_DISABLE_IT(&(uart->handle), UART_IT_TXE);
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__HAL_UART_ENABLE_IT(&(uart->handle), UART_IT_TC);
|
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}
|
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}
|
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else if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_TC) &&
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(__HAL_UART_GET_IT_SOURCE(&(uart->handle), UART_IT_TC) != RESET))
|
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{
|
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if (uart->uart_dma_flag & RT_DEVICE_FLAG_DMA_TX)
|
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{
|
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/* The HAL_UART_TxCpltCallback will be triggered */
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HAL_UART_IRQHandler(&(uart->handle));
|
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}
|
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else
|
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{
|
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/* Transmission complete interrupt disable ( CR1 Register) */
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__HAL_UART_DISABLE_IT(&(uart->handle), UART_IT_TC);
|
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rt_hw_serial_isr(serial, RT_SERIAL_EVENT_TX_DONE);
|
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}
|
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/* Clear Transmission complete interrupt flag ( ISR Register ) */
|
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UART_INSTANCE_CLEAR_FUNCTION(&(uart->handle), UART_FLAG_TC);
|
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}
|
||
|
||
#ifdef RT_SERIAL_USING_DMA
|
||
else if ((uart->uart_dma_flag) && (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_IDLE) != RESET)
|
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&& (__HAL_UART_GET_IT_SOURCE(&(uart->handle), UART_IT_IDLE) != RESET))
|
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{
|
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dma_recv_isr(serial, UART_RX_DMA_IT_IDLE_FLAG);
|
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__HAL_UART_CLEAR_IDLEFLAG(&uart->handle);
|
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}
|
||
#endif
|
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else
|
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{
|
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if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_ORE) != RESET)
|
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{
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LOG_E("(%s) serial device Overrun error!", serial->parent.parent.name);
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__HAL_UART_CLEAR_OREFLAG(&uart->handle);
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}
|
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if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_NE) != RESET)
|
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{
|
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__HAL_UART_CLEAR_NEFLAG(&uart->handle);
|
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}
|
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if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_FE) != RESET)
|
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{
|
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__HAL_UART_CLEAR_FEFLAG(&uart->handle);
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}
|
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if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_PE) != RESET)
|
||
{
|
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__HAL_UART_CLEAR_PEFLAG(&uart->handle);
|
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}
|
||
#if !defined(SOC_SERIES_STM32L4) && !defined(SOC_SERIES_STM32WL) && !defined(SOC_SERIES_STM32F7) && !defined(SOC_SERIES_STM32F0) \
|
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&& !defined(SOC_SERIES_STM32L0) && !defined(SOC_SERIES_STM32G0) && !defined(SOC_SERIES_STM32H7) \
|
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&& !defined(SOC_SERIES_STM32G4) && !defined(SOC_SERIES_STM32MP1) && !defined(SOC_SERIES_STM32WB)
|
||
if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_LBD) != RESET)
|
||
{
|
||
UART_INSTANCE_CLEAR_FUNCTION(&(uart->handle), UART_FLAG_LBD);
|
||
}
|
||
#endif
|
||
if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_CTS) != RESET)
|
||
{
|
||
UART_INSTANCE_CLEAR_FUNCTION(&(uart->handle), UART_FLAG_CTS);
|
||
}
|
||
if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_TXE) != RESET)
|
||
{
|
||
UART_INSTANCE_CLEAR_FUNCTION(&(uart->handle), UART_FLAG_TXE);
|
||
}
|
||
if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_TC) != RESET)
|
||
{
|
||
UART_INSTANCE_CLEAR_FUNCTION(&(uart->handle), UART_FLAG_TC);
|
||
}
|
||
if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_RXNE) != RESET)
|
||
{
|
||
UART_INSTANCE_CLEAR_FUNCTION(&(uart->handle), UART_FLAG_RXNE);
|
||
}
|
||
}
|
||
}
|
||
|
||
#if defined(BSP_USING_UART1)
|
||
void USART1_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
uart_isr(&(uart_obj[UART1_INDEX].serial));
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART1_RX_USING_DMA)
|
||
void UART1_DMA_RX_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
HAL_DMA_IRQHandler(&uart_obj[UART1_INDEX].dma_rx.handle);
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART1_RX_USING_DMA) */
|
||
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART1_TX_USING_DMA)
|
||
void UART1_DMA_TX_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
HAL_DMA_IRQHandler(&uart_obj[UART1_INDEX].dma_tx.handle);
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART1_TX_USING_DMA) */
|
||
#endif /* BSP_USING_UART1 */
|
||
|
||
#if defined(BSP_USING_UART2)
|
||
void USART2_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
uart_isr(&(uart_obj[UART2_INDEX].serial));
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART2_RX_USING_DMA)
|
||
void UART2_DMA_RX_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
HAL_DMA_IRQHandler(&uart_obj[UART2_INDEX].dma_rx.handle);
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART2_RX_USING_DMA) */
|
||
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART2_TX_USING_DMA)
|
||
void UART2_DMA_TX_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
HAL_DMA_IRQHandler(&uart_obj[UART2_INDEX].dma_tx.handle);
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART2_TX_USING_DMA) */
|
||
#endif /* BSP_USING_UART2 */
|
||
|
||
#if defined(BSP_USING_UART3)
|
||
void USART3_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
uart_isr(&(uart_obj[UART3_INDEX].serial));
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART3_RX_USING_DMA)
|
||
void UART3_DMA_RX_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
HAL_DMA_IRQHandler(&uart_obj[UART3_INDEX].dma_rx.handle);
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#endif /* defined(BSP_UART_USING_DMA_RX) && defined(BSP_UART3_RX_USING_DMA) */
|
||
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART3_TX_USING_DMA)
|
||
void UART3_DMA_TX_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
HAL_DMA_IRQHandler(&uart_obj[UART3_INDEX].dma_tx.handle);
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#endif /* defined(BSP_UART_USING_DMA_TX) && defined(BSP_UART3_TX_USING_DMA) */
|
||
#endif /* BSP_USING_UART3*/
|
||
|
||
#if defined(BSP_USING_UART4)
|
||
void UART4_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
uart_isr(&(uart_obj[UART4_INDEX].serial));
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART4_RX_USING_DMA)
|
||
void UART4_DMA_RX_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
HAL_DMA_IRQHandler(&uart_obj[UART4_INDEX].dma_rx.handle);
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#endif /* defined(BSP_UART_USING_DMA_RX) && defined(BSP_UART4_RX_USING_DMA) */
|
||
|
||
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART4_TX_USING_DMA)
|
||
void UART4_DMA_TX_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
HAL_DMA_IRQHandler(&uart_obj[UART4_INDEX].dma_tx.handle);
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#endif /* defined(BSP_UART_USING_DMA_TX) && defined(BSP_UART4_TX_USING_DMA) */
|
||
#endif /* BSP_USING_UART4*/
|
||
|
||
#if defined(BSP_USING_UART5)
|
||
void UART5_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
uart_isr(&(uart_obj[UART5_INDEX].serial));
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART5_RX_USING_DMA)
|
||
void UART5_DMA_RX_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
HAL_DMA_IRQHandler(&uart_obj[UART5_INDEX].dma_rx.handle);
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART5_RX_USING_DMA) */
|
||
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART5_TX_USING_DMA)
|
||
void UART5_DMA_TX_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
HAL_DMA_IRQHandler(&uart_obj[UART5_INDEX].dma_tx.handle);
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART5_TX_USING_DMA) */
|
||
#endif /* BSP_USING_UART5*/
|
||
|
||
#if defined(BSP_USING_UART6)
|
||
void USART6_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
uart_isr(&(uart_obj[UART6_INDEX].serial));
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART6_RX_USING_DMA)
|
||
void UART6_DMA_RX_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
HAL_DMA_IRQHandler(&uart_obj[UART6_INDEX].dma_rx.handle);
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART6_RX_USING_DMA) */
|
||
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART6_TX_USING_DMA)
|
||
void UART6_DMA_TX_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
HAL_DMA_IRQHandler(&uart_obj[UART6_INDEX].dma_tx.handle);
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART6_TX_USING_DMA) */
|
||
#endif /* BSP_USING_UART6*/
|
||
|
||
#if defined(BSP_USING_UART7)
|
||
void UART7_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
uart_isr(&(uart_obj[UART7_INDEX].serial));
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART7_RX_USING_DMA)
|
||
void UART7_DMA_RX_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
HAL_DMA_IRQHandler(&uart_obj[UART7_INDEX].dma_rx.handle);
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART7_RX_USING_DMA) */
|
||
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART7_TX_USING_DMA)
|
||
void UART7_DMA_TX_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
HAL_DMA_IRQHandler(&uart_obj[UART7_INDEX].dma_tx.handle);
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART7_TX_USING_DMA) */
|
||
#endif /* BSP_USING_UART7*/
|
||
|
||
#if defined(BSP_USING_UART8)
|
||
void UART8_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
uart_isr(&(uart_obj[UART8_INDEX].serial));
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART8_RX_USING_DMA)
|
||
void UART8_DMA_RX_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
HAL_DMA_IRQHandler(&uart_obj[UART8_INDEX].dma_rx.handle);
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART8_RX_USING_DMA) */
|
||
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART8_TX_USING_DMA)
|
||
void UART8_DMA_TX_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
HAL_DMA_IRQHandler(&uart_obj[UART8_INDEX].dma_tx.handle);
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART8_TX_USING_DMA) */
|
||
#endif /* BSP_USING_UART8*/
|
||
|
||
#if defined(BSP_USING_LPUART1)
|
||
void LPUART1_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
uart_isr(&(uart_obj[LPUART1_INDEX].serial));
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_LPUART1_RX_USING_DMA)
|
||
void LPUART1_DMA_RX_IRQHandler(void)
|
||
{
|
||
/* enter interrupt */
|
||
rt_interrupt_enter();
|
||
|
||
HAL_DMA_IRQHandler(&uart_obj[LPUART1_INDEX].dma_rx.handle);
|
||
|
||
/* leave interrupt */
|
||
rt_interrupt_leave();
|
||
}
|
||
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_LPUART1_RX_USING_DMA) */
|
||
#endif /* BSP_USING_LPUART1*/
|
||
static void stm32_uart_get_config(void)
|
||
{
|
||
struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
|
||
#ifdef BSP_USING_UART1
|
||
uart_obj[UART1_INDEX].serial.config = config;
|
||
uart_obj[UART1_INDEX].uart_dma_flag = 0;
|
||
|
||
uart_obj[UART1_INDEX].serial.config.rx_bufsz = BSP_UART1_RX_BUFSIZE;
|
||
uart_obj[UART1_INDEX].serial.config.tx_bufsz = BSP_UART1_TX_BUFSIZE;
|
||
|
||
#ifdef BSP_UART1_RX_USING_DMA
|
||
uart_obj[UART1_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_RX;
|
||
static struct dma_config uart1_dma_rx = UART1_DMA_RX_CONFIG;
|
||
uart_config[UART1_INDEX].dma_rx = &uart1_dma_rx;
|
||
#endif
|
||
|
||
#ifdef BSP_UART1_TX_USING_DMA
|
||
uart_obj[UART1_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_TX;
|
||
static struct dma_config uart1_dma_tx = UART1_DMA_TX_CONFIG;
|
||
uart_config[UART1_INDEX].dma_tx = &uart1_dma_tx;
|
||
#endif
|
||
#endif
|
||
|
||
#ifdef BSP_USING_UART2
|
||
uart_obj[UART2_INDEX].serial.config = config;
|
||
uart_obj[UART2_INDEX].uart_dma_flag = 0;
|
||
|
||
uart_obj[UART2_INDEX].serial.config.rx_bufsz = BSP_UART2_RX_BUFSIZE;
|
||
uart_obj[UART2_INDEX].serial.config.tx_bufsz = BSP_UART2_TX_BUFSIZE;
|
||
|
||
#ifdef BSP_UART2_RX_USING_DMA
|
||
uart_obj[UART2_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_RX;
|
||
static struct dma_config uart2_dma_rx = UART2_DMA_RX_CONFIG;
|
||
uart_config[UART2_INDEX].dma_rx = &uart2_dma_rx;
|
||
#endif
|
||
|
||
#ifdef BSP_UART2_TX_USING_DMA
|
||
uart_obj[UART2_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_TX;
|
||
static struct dma_config uart2_dma_tx = UART2_DMA_TX_CONFIG;
|
||
uart_config[UART2_INDEX].dma_tx = &uart2_dma_tx;
|
||
#endif
|
||
#endif
|
||
|
||
#ifdef BSP_USING_UART3
|
||
uart_obj[UART3_INDEX].serial.config = config;
|
||
uart_obj[UART3_INDEX].uart_dma_flag = 0;
|
||
|
||
uart_obj[UART3_INDEX].serial.config.rx_bufsz = BSP_UART3_RX_BUFSIZE;
|
||
uart_obj[UART3_INDEX].serial.config.tx_bufsz = BSP_UART3_TX_BUFSIZE;
|
||
|
||
#ifdef BSP_UART3_RX_USING_DMA
|
||
uart_obj[UART3_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_RX;
|
||
static struct dma_config uart3_dma_rx = UART3_DMA_RX_CONFIG;
|
||
uart_config[UART3_INDEX].dma_rx = &uart3_dma_rx;
|
||
#endif
|
||
|
||
#ifdef BSP_UART3_TX_USING_DMA
|
||
uart_obj[UART3_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_TX;
|
||
static struct dma_config uart3_dma_tx = UART3_DMA_TX_CONFIG;
|
||
uart_config[UART3_INDEX].dma_tx = &uart3_dma_tx;
|
||
#endif
|
||
#endif
|
||
|
||
#ifdef BSP_USING_UART4
|
||
uart_obj[UART4_INDEX].serial.config = config;
|
||
uart_obj[UART4_INDEX].uart_dma_flag = 0;
|
||
|
||
uart_obj[UART4_INDEX].serial.config.rx_bufsz = BSP_UART4_RX_BUFSIZE;
|
||
uart_obj[UART4_INDEX].serial.config.tx_bufsz = BSP_UART4_TX_BUFSIZE;
|
||
|
||
#ifdef BSP_UART4_RX_USING_DMA
|
||
uart_obj[UART4_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_RX;
|
||
static struct dma_config uart4_dma_rx = UART4_DMA_RX_CONFIG;
|
||
uart_config[UART4_INDEX].dma_rx = &uart4_dma_rx;
|
||
#endif
|
||
|
||
#ifdef BSP_UART4_TX_USING_DMA
|
||
uart_obj[UART4_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_TX;
|
||
static struct dma_config uart4_dma_tx = UART4_DMA_TX_CONFIG;
|
||
uart_config[UART4_INDEX].dma_tx = &uart4_dma_tx;
|
||
#endif
|
||
#endif
|
||
}
|
||
|
||
#ifdef RT_SERIAL_USING_DMA
|
||
static void stm32_dma_config(struct rt_serial_device *serial, rt_ubase_t flag)
|
||
{
|
||
struct rt_serial_rx_fifo *rx_fifo;
|
||
DMA_HandleTypeDef *DMA_Handle;
|
||
struct dma_config *dma_config;
|
||
struct stm32_uart *uart;
|
||
|
||
RT_ASSERT(serial != RT_NULL);
|
||
uart = rt_container_of(serial, struct stm32_uart, serial);
|
||
|
||
if (RT_DEVICE_FLAG_DMA_RX == flag)
|
||
{
|
||
DMA_Handle = &uart->dma_rx.handle;
|
||
dma_config = uart->config->dma_rx;
|
||
}
|
||
else if (RT_DEVICE_FLAG_DMA_TX == flag)
|
||
{
|
||
DMA_Handle = &uart->dma_tx.handle;
|
||
dma_config = uart->config->dma_tx;
|
||
}
|
||
LOG_D("%s dma config start", uart->config->name);
|
||
|
||
{
|
||
rt_uint32_t tmpreg = 0x00U;
|
||
#if defined(SOC_SERIES_STM32F1) || defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32G0) \
|
||
|| defined(SOC_SERIES_STM32L0)
|
||
/* enable DMA clock && Delay after an RCC peripheral clock enabling*/
|
||
SET_BIT(RCC->AHBENR, dma_config->dma_rcc);
|
||
tmpreg = READ_BIT(RCC->AHBENR, dma_config->dma_rcc);
|
||
#elif defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7) || defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32WL) \
|
||
|| defined(SOC_SERIES_STM32G4)|| defined(SOC_SERIES_STM32H7) || defined(SOC_SERIES_STM32WB)
|
||
/* enable DMA clock && Delay after an RCC peripheral clock enabling*/
|
||
SET_BIT(RCC->AHB1ENR, dma_config->dma_rcc);
|
||
tmpreg = READ_BIT(RCC->AHB1ENR, dma_config->dma_rcc);
|
||
#elif defined(SOC_SERIES_STM32MP1)
|
||
/* enable DMA clock && Delay after an RCC peripheral clock enabling*/
|
||
SET_BIT(RCC->MP_AHB2ENSETR, dma_config->dma_rcc);
|
||
tmpreg = READ_BIT(RCC->MP_AHB2ENSETR, dma_config->dma_rcc);
|
||
#endif
|
||
|
||
#if defined(DMAMUX1) && (defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32WL) || defined(SOC_SERIES_STM32G4) || defined(SOC_SERIES_STM32WB))
|
||
/* enable DMAMUX clock for L4+ and G4 */
|
||
__HAL_RCC_DMAMUX1_CLK_ENABLE();
|
||
#elif defined(SOC_SERIES_STM32MP1)
|
||
__HAL_RCC_DMAMUX_CLK_ENABLE();
|
||
#endif
|
||
|
||
UNUSED(tmpreg); /* To avoid compiler warnings */
|
||
}
|
||
|
||
if (RT_DEVICE_FLAG_DMA_RX == flag)
|
||
{
|
||
__HAL_LINKDMA(&(uart->handle), hdmarx, uart->dma_rx.handle);
|
||
}
|
||
else if (RT_DEVICE_FLAG_DMA_TX == flag)
|
||
{
|
||
__HAL_LINKDMA(&(uart->handle), hdmatx, uart->dma_tx.handle);
|
||
}
|
||
|
||
#if defined(SOC_SERIES_STM32F1) || defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32L0)
|
||
DMA_Handle->Instance = dma_config->Instance;
|
||
#elif defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7)
|
||
DMA_Handle->Instance = dma_config->Instance;
|
||
DMA_Handle->Init.Channel = dma_config->channel;
|
||
#elif defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32WL) || defined(SOC_SERIES_STM32G0) || defined(SOC_SERIES_STM32G4) || defined(SOC_SERIES_STM32WB)\
|
||
|| defined(SOC_SERIES_STM32H7) || defined(SOC_SERIES_STM32MP1)
|
||
DMA_Handle->Instance = dma_config->Instance;
|
||
DMA_Handle->Init.Request = dma_config->request;
|
||
#endif
|
||
DMA_Handle->Init.PeriphInc = DMA_PINC_DISABLE;
|
||
DMA_Handle->Init.MemInc = DMA_MINC_ENABLE;
|
||
DMA_Handle->Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
|
||
DMA_Handle->Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
|
||
|
||
if (RT_DEVICE_FLAG_DMA_RX == flag)
|
||
{
|
||
DMA_Handle->Init.Direction = DMA_PERIPH_TO_MEMORY;
|
||
DMA_Handle->Init.Mode = DMA_CIRCULAR;
|
||
}
|
||
else if (RT_DEVICE_FLAG_DMA_TX == flag)
|
||
{
|
||
DMA_Handle->Init.Direction = DMA_MEMORY_TO_PERIPH;
|
||
DMA_Handle->Init.Mode = DMA_NORMAL;
|
||
}
|
||
|
||
DMA_Handle->Init.Priority = DMA_PRIORITY_MEDIUM;
|
||
#if defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7) || defined(SOC_SERIES_STM32H7) || defined(SOC_SERIES_STM32MP1)
|
||
DMA_Handle->Init.FIFOMode = DMA_FIFOMODE_DISABLE;
|
||
#endif
|
||
if (HAL_DMA_DeInit(DMA_Handle) != HAL_OK)
|
||
{
|
||
RT_ASSERT(0);
|
||
}
|
||
|
||
if (HAL_DMA_Init(DMA_Handle) != HAL_OK)
|
||
{
|
||
RT_ASSERT(0);
|
||
}
|
||
|
||
/* enable interrupt */
|
||
if (flag == RT_DEVICE_FLAG_DMA_RX)
|
||
{
|
||
rx_fifo = (struct rt_serial_rx_fifo *)serial->serial_rx;
|
||
RT_ASSERT(rx_fifo != RT_NULL);
|
||
/* Start DMA transfer */
|
||
if (HAL_UART_Receive_DMA(&(uart->handle), rx_fifo->buffer, serial->config.rx_bufsz) != HAL_OK)
|
||
{
|
||
/* Transfer error in reception process */
|
||
RT_ASSERT(0);
|
||
}
|
||
CLEAR_BIT(uart->handle.Instance->CR3, USART_CR3_EIE);
|
||
__HAL_UART_ENABLE_IT(&(uart->handle), UART_IT_IDLE);
|
||
}
|
||
|
||
/* DMA irq should set in DMA TX mode, or HAL_UART_TxCpltCallback function will not be called */
|
||
HAL_NVIC_SetPriority(dma_config->dma_irq, 0, 0);
|
||
HAL_NVIC_EnableIRQ(dma_config->dma_irq);
|
||
|
||
HAL_NVIC_SetPriority(uart->config->irq_type, 1, 0);
|
||
HAL_NVIC_EnableIRQ(uart->config->irq_type);
|
||
|
||
LOG_D("%s dma %s instance: %x", uart->config->name, flag == RT_DEVICE_FLAG_DMA_RX ? "RX" : "TX", DMA_Handle->Instance);
|
||
LOG_D("%s dma config done", uart->config->name);
|
||
}
|
||
|
||
/**
|
||
* @brief UART error callbacks
|
||
* @param huart: UART handle
|
||
* @note This example shows a simple way to report transfer error, and you can
|
||
* add your own implementation.
|
||
* @retval None
|
||
*/
|
||
void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart)
|
||
{
|
||
RT_ASSERT(huart != NULL);
|
||
struct stm32_uart *uart = (struct stm32_uart *)huart;
|
||
LOG_D("%s: %s %d\n", __FUNCTION__, uart->config->name, huart->ErrorCode);
|
||
UNUSED(uart);
|
||
}
|
||
|
||
/**
|
||
* @brief Rx Transfer completed callback
|
||
* @param huart: UART handle
|
||
* @note This example shows a simple way to report end of DMA Rx transfer, and
|
||
* you can add your own implementation.
|
||
* @retval None
|
||
*/
|
||
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
|
||
{
|
||
struct stm32_uart *uart;
|
||
RT_ASSERT(huart != NULL);
|
||
uart = (struct stm32_uart *)huart;
|
||
dma_recv_isr(&uart->serial, UART_RX_DMA_IT_TC_FLAG);
|
||
}
|
||
|
||
/**
|
||
* @brief Rx Half transfer completed callback
|
||
* @param huart: UART handle
|
||
* @note This example shows a simple way to report end of DMA Rx Half transfer,
|
||
* and you can add your own implementation.
|
||
* @retval None
|
||
*/
|
||
void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart)
|
||
{
|
||
struct stm32_uart *uart;
|
||
RT_ASSERT(huart != NULL);
|
||
uart = (struct stm32_uart *)huart;
|
||
dma_recv_isr(&uart->serial, UART_RX_DMA_IT_HT_FLAG);
|
||
}
|
||
|
||
/**
|
||
* @brief HAL_UART_TxCpltCallback
|
||
* @param huart: UART handle
|
||
* @note This callback can be called by two functions, first in UART_EndTransmit_IT when
|
||
* UART Tx complete and second in UART_DMATransmitCplt function in DMA Circular mode.
|
||
* @retval None
|
||
*/
|
||
void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
|
||
{
|
||
struct stm32_uart *uart;
|
||
struct rt_serial_device *serial;
|
||
rt_size_t trans_total_index;
|
||
rt_base_t level;
|
||
|
||
RT_ASSERT(huart != NULL);
|
||
uart = (struct stm32_uart *)huart;
|
||
serial = &uart->serial;
|
||
RT_ASSERT(serial != RT_NULL);
|
||
|
||
level = rt_hw_interrupt_disable();
|
||
trans_total_index = __HAL_DMA_GET_COUNTER(&(uart->dma_tx.handle));
|
||
rt_hw_interrupt_enable(level);
|
||
|
||
if (trans_total_index) return;
|
||
|
||
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_TX_DMADONE);
|
||
|
||
}
|
||
#endif /* RT_SERIAL_USING_DMA */
|
||
|
||
static const struct rt_uart_ops stm32_uart_ops =
|
||
{
|
||
.configure = stm32_configure,
|
||
.control = stm32_control,
|
||
.putc = stm32_putc,
|
||
.getc = stm32_getc,
|
||
.transmit = stm32_transmit
|
||
};
|
||
|
||
int rt_hw_usart_init(void)
|
||
{
|
||
rt_err_t result = 0;
|
||
rt_size_t obj_num = sizeof(uart_obj) / sizeof(struct stm32_uart);
|
||
|
||
stm32_uart_get_config();
|
||
for (int i = 0; i < obj_num; i++)
|
||
{
|
||
/* init UART object */
|
||
uart_obj[i].config = &uart_config[i];
|
||
uart_obj[i].serial.ops = &stm32_uart_ops;
|
||
/* register UART device */
|
||
result = rt_hw_serial_register(&uart_obj[i].serial,
|
||
uart_obj[i].config->name,
|
||
RT_DEVICE_FLAG_RDWR,
|
||
NULL);
|
||
RT_ASSERT(result == RT_EOK);
|
||
}
|
||
|
||
return result;
|
||
}
|
||
|
||
#endif /* RT_USING_SERIAL_V2 */
|