332 lines
7.5 KiB
C
332 lines
7.5 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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* 2021-01-04 iysheng first version
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* 2021-09-07 FuC Suit for Vango V85XX
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* 2021·09-12 ZhuXW fix UART5
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*/
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#include <target.h>
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#include <drv_usart.h>
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#include <board.h>
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#ifdef RT_USING_SERIAL
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#if !defined(BSP_USING_UART0) && !defined(BSP_USING_UART1) && \
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!defined(BSP_USING_UART2) && !defined(BSP_USING_UART3) && \
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!defined(BSP_USING_UART4) && !defined(BSP_USING_UART5)
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#error "Please define at least one UARTx"
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#endif
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#include <rtdevice.h>
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static void uart_isr(struct rt_serial_device *serial);
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#if defined(BSP_USING_UART0)
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struct rt_serial_device serial0;
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void UART0_IRQHandler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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uart_isr(&serial0);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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#endif /* BSP_USING_UART0 */
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#if defined(BSP_USING_UART1)
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struct rt_serial_device serial1;
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void UART1_IRQHandler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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uart_isr(&serial1);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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#endif /* BSP_USING_UART1 */
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#if defined(BSP_USING_UART2)
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struct rt_serial_device serial2;
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void UART2_IRQHandler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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uart_isr(&serial2);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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#endif /* BSP_USING_UART2 */
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#if defined(BSP_USING_UART3)
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struct rt_serial_device serial3;
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void UART3_IRQHandler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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uart_isr(&serial3);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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#endif /* BSP_USING_UART3 */
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#if defined(BSP_USING_UART4)
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struct rt_serial_device serial4;
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void UART4_IRQHandler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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uart_isr(&serial4);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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#endif /* BSP_USING_UART4 */
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#if defined(BSP_USING_UART5)
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struct rt_serial_device serial5;
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void UART5_IRQHandler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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uart_isr(&serial5);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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#endif /* BSP_USING_UART4 */
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static const struct V85xx_uart uarts[] =
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{
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#ifdef BSP_USING_UART0
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{
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UART0, /* uart peripheral index */
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UART0_IRQn, /* uart iqrn */
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&serial0,
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"uart0",
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},
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#endif
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#ifdef BSP_USING_UART1
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{
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UART1, /* uart peripheral index */
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UART1_IRQn, /* uart iqrn */
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&serial1,
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"uart1",
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},
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#endif
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#ifdef BSP_USING_UART2
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{
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UART2, /* uart peripheral index */
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UART2_IRQn, /* uart iqrn */
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&serial2,
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"uart2",
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},
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#endif
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#ifdef BSP_USING_UART3
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{
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UART3, /* uart peripheral index */
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UART3_IRQn, /* uart iqrn */
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&serial3,
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"uart3",
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},
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#endif
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#ifdef BSP_USING_UART4
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{
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UART4, /* uart peripheral index */
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UART4_IRQn, /* uart iqrn */
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&serial4,
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"uart4",
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},
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#endif
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#ifdef BSP_USING_UART5
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{
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UART5, /* uart peripheral index */
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UART5_IRQn, /* uart iqrn */
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&serial5,
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"uart5",
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},
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#endif
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};
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static rt_err_t V85xx_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
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{
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struct V85xx_uart *uart;
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UART_TypeDef *UARTx;
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UART_InitType UART_InitParaStruct = {0};
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UART_StructInit(&UART_InitParaStruct);
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RT_ASSERT(serial != RT_NULL);
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RT_ASSERT(cfg != RT_NULL);
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uart = (struct V85xx_uart *)serial->parent.user_data;
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UARTx = (UART_TypeDef *)uart->uart_periph;
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UART_InitParaStruct.Baudrate = cfg->baud_rate;
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switch (cfg->data_bits)
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{
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case DATA_BITS_9:
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UART_InitParaStruct.WordLen = UART_WORDLEN_9B;
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break;
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default:
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UART_InitParaStruct.WordLen = UART_WORDLEN_8B;
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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_ODD:
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UART_InitParaStruct.Parity = UART_PARITY_ODD;
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break;
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case PARITY_EVEN:
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UART_InitParaStruct.Parity = UART_PARITY_EVEN;
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break;
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default:
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UART_InitParaStruct.Parity = UART_PARITY_NONE;
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break;
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}
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UART_InitParaStruct.Mode = UART_MODE_RX | UART_MODE_TX;
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UART_Init(UARTx, &UART_InitParaStruct);
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UART_Cmd(UARTx, UART_InitParaStruct.Mode, ENABLE);
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return RT_EOK;
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}
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static rt_err_t V85xx_control(struct rt_serial_device *serial, int cmd, void *arg)
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{
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struct V85xx_uart *uart;
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UART_TypeDef *UARTx;
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RT_ASSERT(serial != RT_NULL);
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uart = (struct V85xx_uart *)serial->parent.user_data;
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UARTx = (UART_TypeDef *)uart->uart_periph;
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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->irqn);
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/* disable interrupt */
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UART_INTConfig(UARTx, UART_INT_RX, DISABLE);
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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->irqn);
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/* enable interrupt */
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UART_INTConfig(UARTx, UART_INT_RX, ENABLE);
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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 V85xx_putc(struct rt_serial_device *serial, char ch)
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{
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struct V85xx_uart *uart;
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RT_ASSERT(serial != RT_NULL);
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uart = (struct V85xx_uart *)serial->parent.user_data;
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UART_SendData((UART_TypeDef *)uart->uart_periph, ch);
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while ((UART_GetFlag((UART_TypeDef *)uart->uart_periph, UART_FLAG_TXDONE) == RESET));
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UART_ClearFlag((UART_TypeDef *)uart->uart_periph, UART_FLAG_TXDONE);
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return 1;
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}
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static int V85xx_getc(struct rt_serial_device *serial)
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{
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int ch;
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struct V85xx_uart *uart;
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RT_ASSERT(serial != RT_NULL);
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uart = (struct V85xx_uart *)serial->parent.user_data;
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ch = -1;
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if (UART_GetFlag((UART_TypeDef *)uart->uart_periph, UART_FLAG_RXFULL) != RESET)
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ch = UART_ReceiveData((UART_TypeDef *)uart->uart_periph);
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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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{
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struct V85xx_uart *uart = (struct V85xx_uart *) serial->parent.user_data;
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RT_ASSERT(uart != RT_NULL);
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if ((UART_GetINTStatus((UART_TypeDef *)uart->uart_periph, UART_INTSTS_RX) != RESET) &&
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(UART_GetFlag((UART_TypeDef *)uart->uart_periph, UART_FLAG_RXFULL) != 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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UART_ClearINTStatus((UART_TypeDef *)uart->uart_periph, UART_INTSTS_RX);
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}
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}
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static const struct rt_uart_ops V85xx_uart_ops =
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{
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V85xx_configure,
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V85xx_control,
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V85xx_putc,
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V85xx_getc,
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};
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int V85xx_hw_usart_init(void)
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{
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struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
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int i;
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for (i = 0; i < sizeof(uarts) / sizeof(uarts[0]); i++)
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{
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uarts[i].serial->ops = &V85xx_uart_ops;
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uarts[i].serial->config = config;
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/* register UART device */
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rt_hw_serial_register(uarts[i].serial,
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uarts[i].device_name,
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RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
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(void *)&uarts[i]);
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}
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return 0;
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}
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INIT_BOARD_EXPORT(V85xx_hw_usart_init);
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#endif
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