445 lines
11 KiB
C
445 lines
11 KiB
C
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/*
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* Copyright (C) 2018 Shanghai Eastsoft Microelectronics Co., Ltd.
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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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* 2019-07-12 wangyq the first version
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*/
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#include <rthw.h>
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#include <rtthread.h>
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#include <rtdevice.h>
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#include "board.h"
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#include "drv_uart.h"
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#include <lib_gpio.h>
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#include <lib_uart.h>
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#ifdef RT_USING_SERIAL
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/* es8p uart driver */
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struct es8p_uart
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{
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UART_TypeDef *huart;
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IRQn_Type irq;
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};
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static rt_err_t es8px_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
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{
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GPIO_InitStruType gpio_initstruct;
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UART_InitStruType uart_initstruct;
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struct es8p_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 es8p_uart *)serial->parent.user_data;
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gpio_initstruct.GPIO_Signal = GPIO_Pin_Signal_Digital;
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gpio_initstruct.GPIO_OD = GPIO_ODE_Output_Disable;
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gpio_initstruct.GPIO_PUEN = GPIO_PUE_Input_Enable;
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gpio_initstruct.GPIO_PDEN = GPIO_PDE_Input_Disable;
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gpio_initstruct.GPIO_DS = GPIO_DS_Output_Normal;
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#ifdef BSP_USING_UART0
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gpio_initstruct.GPIO_Func = GPIO_Func_2;
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/* Initialize rx pin */
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gpio_initstruct.GPIO_Direction = GPIO_Dir_In;
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GPIO_Init(GPIOB, GPIO_Pin_0, &gpio_initstruct);
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/* Initialize tx pin ,the same as rx pin except mode */
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gpio_initstruct.GPIO_Direction = GPIO_Dir_Out;
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GPIO_Init(GPIOB, GPIO_Pin_1, &gpio_initstruct);
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#endif
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#ifdef BSP_USING_UART1
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gpio_initstruct.GPIO_Func = GPIO_Func_1;
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/* Initialize rx pin */
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gpio_initstruct.GPIO_Direction = GPIO_Dir_In;
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GPIO_Init(GPIOA, GPIO_Pin_18, &gpio_initstruct);
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/* Initialize tx pin ,the same as rx pin except mode */
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gpio_initstruct.GPIO_Direction = GPIO_Dir_Out;
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GPIO_Init(GPIOA, GPIO_Pin_17, &gpio_initstruct);
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#endif
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#ifdef BSP_USING_UART2
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gpio_initstruct.GPIO_Func = GPIO_Func_2;
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/* Initialize rx pin */
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gpio_initstruct.GPIO_Direction = GPIO_Dir_In;
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GPIO_Init(GPIOA, GPIO_Pin_4, &gpio_initstruct);
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/* Initialize tx pin ,the same as rx pin except mode */
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gpio_initstruct.GPIO_Direction = GPIO_Dir_Out;
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GPIO_Init(GPIOA, GPIO_Pin_5, &gpio_initstruct);
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#endif
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#ifdef BSP_USING_UART3
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gpio_initstruct.GPIO_Func = GPIO_Func_2;
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/* Initialize rx pin */
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gpio_initstruct.GPIO_Direction = GPIO_Dir_In;
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GPIO_Init(GPIOA, GPIO_Pin_30, &gpio_initstruct);
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/* Initialize tx pin ,the same as rx pin except mode */
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gpio_initstruct.GPIO_Direction = GPIO_Dir_Out;
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GPIO_Init(GPIOA, GPIO_Pin_29, &gpio_initstruct);
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#endif
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#ifdef BSP_USING_UART4
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gpio_initstruct.GPIO_Func = GPIO_Func_1;
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/* Initialize rx pin */
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gpio_initstruct.GPIO_Direction = GPIO_Dir_In;
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GPIO_Init(GPIOB, GPIO_Pin_10, &gpio_initstruct);
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/* Initialize tx pin ,the same as rx pin except mode */
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gpio_initstruct.GPIO_Direction = GPIO_Dir_Out;
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GPIO_Init(GPIOB, GPIO_Pin_11, &gpio_initstruct);
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#endif
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#ifdef BSP_USING_UART5
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gpio_initstruct.GPIO_Func = GPIO_Func_1;
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/* Initialize rx pin */
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gpio_initstruct.GPIO_Direction = GPIO_Dir_In;
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GPIO_Init(GPIOB, GPIO_Pin_12, &gpio_initstruct);
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/* Initialize tx pin ,the same as rx pin except mode */
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gpio_initstruct.GPIO_Direction = GPIO_Dir_Out;
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GPIO_Init(GPIOB, GPIO_Pin_13, &gpio_initstruct);
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#endif
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uart_initstruct.UART_ClockSet = UART_Clock_1;
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uart_initstruct.UART_BaudRate = cfg->baud_rate;
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uart_initstruct.UART_RxPolar = UART_Polar_Normal;
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uart_initstruct.UART_TxPolar = UART_Polar_Normal;
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if (cfg->data_bits == DATA_BITS_7)
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{
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uart_initstruct.UART_RxMode = UART_DataMode_7;
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uart_initstruct.UART_TxMode = UART_DataMode_7;
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if (cfg->parity == PARITY_EVEN)
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{
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uart_initstruct.UART_RxMode = UART_DataMode_7Even;
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uart_initstruct.UART_TxMode = UART_DataMode_7Even;
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}
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else if (cfg->parity == PARITY_ODD)
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{
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uart_initstruct.UART_RxMode = UART_DataMode_7Odd;
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uart_initstruct.UART_TxMode = UART_DataMode_7Odd;
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}
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}
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else if (cfg->data_bits == DATA_BITS_8)
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{
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uart_initstruct.UART_RxMode = UART_DataMode_8;
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uart_initstruct.UART_TxMode = UART_DataMode_8;
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if (cfg->parity == PARITY_EVEN)
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{
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uart_initstruct.UART_RxMode = UART_DataMode_8Even;
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uart_initstruct.UART_TxMode = UART_DataMode_8Even;
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}
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else if (cfg->parity == PARITY_ODD)
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{
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uart_initstruct.UART_RxMode = UART_DataMode_8Odd;
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uart_initstruct.UART_TxMode = UART_DataMode_8Odd;
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}
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}
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else if (cfg->data_bits == DATA_BITS_9)
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{
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uart_initstruct.UART_RxMode = UART_DataMode_9;
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uart_initstruct.UART_TxMode = UART_DataMode_9;
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}
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if (cfg->bit_order == BIT_ORDER_MSB)
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{
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return RT_EINVAL;
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}
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if (cfg->invert == NRZ_INVERTED)
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{
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uart_initstruct.UART_RxPolar = UART_Polar_Opposite;
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uart_initstruct.UART_TxPolar = UART_Polar_Opposite;
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}
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/* config uart function */
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UART_Init(uart->huart, &uart_initstruct);
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/* enable rx and tx */
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uart->huart->CON.RXEN = 1;
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uart->huart->CON.TXEN = 1;
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NVIC_SetPriority(uart->irq, 1);
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return RT_EOK;
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}
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static rt_err_t es8px_control(struct rt_serial_device *serial, int cmd, void *arg)
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{
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struct es8p_uart *uart;
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RT_ASSERT(serial != RT_NULL);
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uart = (struct es8p_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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UART_ITConfig(uart->huart, UART_IT_RB, 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->irq);
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/* enable interrupt */
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UART_ITConfig(uart->huart, UART_IT_RB, 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 es8px_putc(struct rt_serial_device *serial, char c)
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{
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struct es8p_uart *uart;
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RT_ASSERT(serial != RT_NULL);
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uart = (struct es8p_uart *)serial->parent.user_data;
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while (UART_GetFlagStatus(uart->huart, UART_FLAG_TB) == RESET) ;
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UART_SendByte(uart->huart, c);
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return 1;
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}
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static int es8px_getc(struct rt_serial_device *serial)
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{
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int ch = -1;
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struct es8p_uart *uart;
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RT_ASSERT(serial != RT_NULL);
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uart = (struct es8p_uart *)serial->parent.user_data;
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if (UART_GetFlagStatus(uart->huart, UART_FLAG_RB))
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{
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ch = UART_RecByte(uart->huart);
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}
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return ch;
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}
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static const struct rt_uart_ops es8px_uart_ops =
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{
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es8px_configure,
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es8px_control,
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es8px_putc,
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es8px_getc,
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};
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#ifdef BSP_USING_UART0
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/* UART0 device driver structure */
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struct es8p_uart uart0 =
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{
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UART0,
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UART0_IRQn
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};
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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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if (UART0->IF.RBIF)
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{
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rt_hw_serial_isr(&serial0, RT_SERIAL_EVENT_RX_IND);
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}
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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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#ifdef BSP_USING_UART1
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/* UART1 device driver structure */
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struct es8p_uart uart1 =
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{
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UART1,
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UART1_IRQn
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};
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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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if (UART1->IF.RBIF)
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{
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rt_hw_serial_isr(&serial1, RT_SERIAL_EVENT_RX_IND);
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}
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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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#ifdef BSP_USING_UART2
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/* UART1 device driver structure */
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struct es8p_uart uart2 =
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{
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UART2,
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UART2_IRQn
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};
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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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if (UART2->IF.RBIF)
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{
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rt_hw_serial_isr(&serial2, RT_SERIAL_EVENT_RX_IND);
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}
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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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#ifdef BSP_USING_UART3
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/* UART3 device driver structure */
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struct es8p_uart uart3 =
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{
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UART3,
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UART3_IRQn
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};
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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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if (UART3->IF.RBIF)
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{
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rt_hw_serial_isr(&serial3, RT_SERIAL_EVENT_RX_IND);
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}
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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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#ifdef BSP_USING_UART4
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/* UART4 device driver structure */
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struct es8p_uart uart4 =
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{
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UART4,
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UART4_IRQn
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};
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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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if (UART4->IF.RBIF)
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{
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rt_hw_serial_isr(&serial4, RT_SERIAL_EVENT_RX_IND);
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}
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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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#ifdef BSP_USING_UART5
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/* UART5 device driver structure */
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struct es8p_uart uart5 =
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{
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UART5,
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UART5_IRQn
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};
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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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if (UART5->IF.RBIF)
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{
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rt_hw_serial_isr(&serial5, RT_SERIAL_EVENT_RX_IND);
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}
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/* leave interrupt */
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rt_interrupt_leave();
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}
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#endif /* BSP_USING_UART5 */
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int rt_hw_uart_init(void)
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{
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struct es8p_uart *uart;
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struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
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#ifdef BSP_USING_UART0
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uart = &uart0;
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serial0.ops = &es8px_uart_ops;
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serial0.config = config;
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/* register UART0 device */
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rt_hw_serial_register(&serial0, "uart0",
|
||
|
|
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX, uart);
|
||
|
|
#endif /* BSP_USING_UART0 */
|
||
|
|
|
||
|
|
#ifdef BSP_USING_UART1
|
||
|
|
uart = &uart1;
|
||
|
|
serial1.ops = &es8px_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 /* BSP_USING_UART1 */
|
||
|
|
|
||
|
|
#ifdef BSP_USING_UART2
|
||
|
|
uart = &uart2;
|
||
|
|
serial2.ops = &es8px_uart_ops;
|
||
|
|
serial2.config = config;
|
||
|
|
|
||
|
|
/* register UART2 device */
|
||
|
|
rt_hw_serial_register(&serial2, "uart2",
|
||
|
|
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX, uart);
|
||
|
|
#endif /* BSP_USING_UART2 */
|
||
|
|
|
||
|
|
#ifdef BSP_USING_UART3
|
||
|
|
uart = &uart3;
|
||
|
|
serial3.ops = &es8px_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 /* BSP_USING_UART3 */
|
||
|
|
|
||
|
|
#ifdef BSP_USING_UART4
|
||
|
|
uart = &uart4;
|
||
|
|
serial4.ops = &es8px_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 /* BSP_USING_UART4 */
|
||
|
|
|
||
|
|
#ifdef BSP_USING_UART5
|
||
|
|
uart = &uart5;
|
||
|
|
serial5.ops = &es8px_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 /* BSP_USING_UART5 */
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
INIT_BOARD_EXPORT(rt_hw_uart_init);
|
||
|
|
|
||
|
|
#endif
|