324 lines
7.6 KiB
C
324 lines
7.6 KiB
C
/*
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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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* 2019-01-23 wangyq the first version
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* 2019-11-01 wangyq update libraries
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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 <ald_gpio.h>
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#include <ald_uart.h>
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#ifdef RT_USING_SERIAL
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/* es32 uart driver */
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struct es32_uart
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{
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uart_handle_t huart;
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IRQn_Type irq;
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};
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static rt_err_t es32f0x_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
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{
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gpio_init_t gpio_initstructure;
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struct es32_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 es32_uart *)serial->parent.user_data;
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/* Initialize tx pin */
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gpio_initstructure.mode = GPIO_MODE_OUTPUT;
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gpio_initstructure.odos = GPIO_PUSH_PULL;
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gpio_initstructure.pupd = GPIO_PUSH_UP;
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gpio_initstructure.odrv = GPIO_OUT_DRIVE_NORMAL;
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gpio_initstructure.flt = GPIO_FILTER_DISABLE;
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gpio_initstructure.type = GPIO_TYPE_TTL;
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#ifdef BSP_USING_UART0
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gpio_initstructure.func = GPIO_FUNC_3;
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ald_gpio_init(GPIOB, GPIO_PIN_10, &gpio_initstructure);
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/* Initialize rx pin ,the same as txpin except mode */
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gpio_initstructure.mode = GPIO_MODE_INPUT;
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ald_gpio_init(GPIOB, GPIO_PIN_11, &gpio_initstructure);
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#endif /* uart0 gpio init */
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#ifdef BSP_USING_UART1
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gpio_initstructure.func = GPIO_FUNC_3;
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ald_gpio_init(GPIOC, GPIO_PIN_10, &gpio_initstructure);
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/* Initialize rx pin ,the same as txpin except mode */
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gpio_initstructure.mode = GPIO_MODE_INPUT;
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ald_gpio_init(GPIOC, GPIO_PIN_11, &gpio_initstructure);
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#endif /* uart1 gpio init */
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#ifdef BSP_USING_UART2
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gpio_initstructure.func = GPIO_FUNC_5;
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ald_gpio_init(GPIOC, GPIO_PIN_12, &gpio_initstructure);
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/* Initialize rx pin ,the same as txpin except mode */
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gpio_initstructure.mode = GPIO_MODE_INPUT;
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ald_gpio_init(GPIOD, GPIO_PIN_2, &gpio_initstructure);
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#endif /* uart2 gpio init */
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#ifdef BSP_USING_UART3
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gpio_initstructure.func = GPIO_FUNC_4;
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ald_gpio_init(GPIOC, GPIO_PIN_4, &gpio_initstructure);
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/* Initialize rx pin ,the same as txpin except mode */
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gpio_initstructure.mode = GPIO_MODE_INPUT;
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ald_gpio_init(GPIOC, GPIO_PIN_5, &gpio_initstructure);
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#endif /* uart3 gpio init */
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uart->huart.init.mode = UART_MODE_UART;
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uart->huart.init.baud = cfg->baud_rate;
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uart->huart.init.word_length = (uart_word_length_t)(cfg->data_bits - 5);
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uart->huart.init.parity = (uart_parity_t)(cfg->parity == PARITY_EVEN ? UART_PARITY_EVEN : cfg->parity);
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uart->huart.init.fctl = UART_HW_FLOW_CTL_DISABLE;
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ald_uart_init(&uart->huart);
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if (cfg->bit_order == BIT_ORDER_MSB)
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{
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UART_MSB_FIRST_ENABLE(&uart->huart);
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}
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else
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{
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UART_MSB_FIRST_DISABLE(&uart->huart);
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}
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if (cfg->invert == NRZ_INVERTED)
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{
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UART_DATA_INV_ENABLE(&uart->huart);
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}
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else
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{
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UART_DATA_INV_DISABLE(&uart->huart);
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}
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/* enable rx int */
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ald_uart_interrupt_config(&uart->huart, UART_IT_RXRD, ENABLE);
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return RT_EOK;
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}
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static rt_err_t es32f0x_control(struct rt_serial_device *serial, int cmd, void *arg)
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{
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struct es32_uart *uart;
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RT_ASSERT(serial != RT_NULL);
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uart = (struct es32_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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ald_uart_interrupt_config(&uart->huart, UART_IT_RXRD, 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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ald_uart_interrupt_config(&uart->huart, UART_IT_RXRD, 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 es32f0x_putc(struct rt_serial_device *serial, char c)
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{
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struct es32_uart *uart;
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RT_ASSERT(serial != RT_NULL);
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uart = (struct es32_uart *)serial->parent.user_data;
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while (!(uart->huart.perh->SR & 0x40)) ;
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WRITE_REG(uart->huart.perh->TBR, c);
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return 1;
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}
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static int es32f0x_getc(struct rt_serial_device *serial)
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{
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int ch = -1;
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struct es32_uart *uart;
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RT_ASSERT(serial != RT_NULL);
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uart = (struct es32_uart *)serial->parent.user_data;
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if (uart->huart.perh->SR & 0x01)
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{
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ch = (uint8_t)(uart->huart.perh->RBR & 0xFF);
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}
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return ch;
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}
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static const struct rt_uart_ops es32f0x_uart_ops =
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{
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es32f0x_configure,
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es32f0x_control,
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es32f0x_putc,
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es32f0x_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 es32_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_Handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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if (UART0->RIF & 0x01)
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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 es32_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_Handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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if (UART1->RIF & 0x01)
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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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/* UART2 device driver structure */
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struct es32_uart uart2 =
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{
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{UART2},
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BS16T1_UART2_IRQn
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};
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struct rt_serial_device serial2;
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void BS16T1_UART2_Handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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if (UART2->RIF & 0x01)
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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 es32_uart uart3 =
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{
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{UART3},
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BS16T2_UART3_IRQn
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};
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struct rt_serial_device serial3;
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void BS16T2_UART3_Handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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if (UART3->RIF & 0x01)
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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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int rt_hw_uart_init(void)
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{
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struct es32_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 = &es32f0x_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",
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RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
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uart);
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#endif /* BSP_USING_UART0 */
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#ifdef BSP_USING_UART1
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uart = &uart1;
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serial1.ops = &es32f0x_uart_ops;
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serial1.config = config;
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/* register UART1 device */
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rt_hw_serial_register(&serial1, "uart1",
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RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
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uart);
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#endif /* BSP_USING_UART1 */
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#ifdef BSP_USING_UART2
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uart = &uart2;
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serial2.ops = &es32f0x_uart_ops;
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serial2.config = config;
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/* register UART2 device */
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rt_hw_serial_register(&serial2, "uart2",
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RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
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uart);
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#endif /* BSP_USING_UART2 */
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#ifdef BSP_USING_UART3
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uart = &uart3;
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serial3.ops = &es32f0x_uart_ops;
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serial3.config = config;
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/* register UART3 device */
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rt_hw_serial_register(&serial3, "uart3",
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RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
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uart);
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#endif /* BSP_USING_UART3 */
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return 0;
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}
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INIT_BOARD_EXPORT(rt_hw_uart_init);
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#endif
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