7761923ec5
Squashed commit of the following:
commit 32dd349ccff85cdcad81021b5185f8f7347786db
Author: Huaqi Fang <578567190@qq.com>
Date: Thu Jun 11 16:08:08 2020 +0800
bsp/nuclei: Add more documentation about how to use RT-Thread in RV-STAR
Signed-off-by: Huaqi Fang <578567190@qq.com>
commit c9474c20a558e9d7934a3d72cc9bb17a98c20871
Author: Huaqi Fang <578567190@qq.com>
Date: Thu Jun 11 14:06:42 2020 +0800
bsp/nuclei: remove comments in rt_hw_*_drvinit
Signed-off-by: Huaqi Fang <578567190@qq.com>
commit 89b5caa2c3e55dc352b13f8e33229f03351b7049
Author: Huaqi Fang <578567190@qq.com>
Date: Thu Jun 11 13:52:12 2020 +0800
bsp/nuclei: Add a entry README.md for nuclei bsp
Signed-off-by: Huaqi Fang <578567190@qq.com>
commit ae50d6e9bdc92ca4767c5ac7d0ded7252314a42e
Author: Huaqi Fang <578567190@qq.com>
Date: Thu Jun 11 11:52:52 2020 +0800
bsp/nuclei: update README.md cover more pinmux section
Signed-off-by: Huaqi Fang <578567190@qq.com>
commit 1a42d85dfe5bc7b009f057784249d54d0c82de0f
Author: Huaqi Fang <578567190@qq.com>
Date: Thu Jun 11 08:52:06 2020 +0800
bsp/nuclei: clean up unused code in drv_spi.c
Signed-off-by: Huaqi Fang <578567190@qq.com>
commit b40edcdf59c96ef261f65a0c023a24ac78cabb39
Author: Huaqi Fang <578567190@qq.com>
Date: Wed Jun 10 14:09:15 2020 +0800
bsp/nuclei: Format the code comments for hw pinmux init
Signed-off-by: Huaqi Fang <578567190@qq.com>
commit c8ae9fdfdb989bbff85d911fee3124abd9d145db
Author: Huaqi Fang <578567190@qq.com>
Date: Mon Jun 8 17:12:43 2020 +0800
bsp/nuclei: Add more drivers support for gd32vf103
* More drivers are supported for rvstar board, see README.md
* If user want to use these supported drivers, menuconfig is required
* User also need to setup pinmux for its coresponding driver in
board/board.c
Signed-off-by: Huaqi Fang <578567190@qq.com>
Signed-off-by: Huaqi Fang <578567190@qq.com>
364 lines
8.3 KiB
C
364 lines
8.3 KiB
C
/*
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* Copyright (c) 2006-2020, 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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* 2019-07-23 tyustli first version
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* 2020-04-02 hqfang modified for Nuclei
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*/
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#include <drv_usart.h>
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#ifdef RT_USING_SERIAL
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#if !defined(BSP_USING_UART0) && !defined(BSP_USING_UART1) && !defined(BSP_USING_UART2) \
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&& !defined(BSP_USING_UART3) && !defined(BSP_USING_UART4)
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#error "Please define at least one BSP_USING_UARTx"
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/* this driver can be disabled at menuconfig -> Hardware Drivers Config -> On-chip Peripheral Drivers -> Enable UART */
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#endif
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enum
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{
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#ifdef BSP_USING_UART0
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GDUART0_INDEX,
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#endif
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#ifdef BSP_USING_UART1
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GDUART1_INDEX,
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#endif
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#ifdef BSP_USING_UART2
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GDUART2_INDEX,
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#endif
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#ifdef BSP_USING_UART3
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GDUART3_INDEX,
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#endif
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#ifdef BSP_USING_UART4
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GDUART4_INDEX,
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#endif
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};
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static struct gd32_uart_config uart_config[] =
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{
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#ifdef BSP_USING_UART0
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{
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"uart0",
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USART0,
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USART0_IRQn,
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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",
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USART1,
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USART1_IRQn,
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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",
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USART2,
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USART2_IRQn,
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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",
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UART3,
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UART3_IRQn,
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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",
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UART4,
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UART4_IRQn,
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},
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#endif
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};
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static struct gd32_uart uart_obj[sizeof(uart_config) / sizeof(uart_config[0])] = {0};
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static rt_err_t gd32_configure(struct rt_serial_device *serial,
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struct serial_configure *cfg)
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{
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struct gd32_uart *usart_obj;
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struct gd32_uart_config *usart;
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RT_ASSERT(serial != RT_NULL);
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RT_ASSERT(cfg != RT_NULL);
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usart_obj = (struct gd32_uart *) serial->parent.user_data;
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usart = usart_obj->config;
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RT_ASSERT(usart != RT_NULL);
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usart_deinit(usart->uart_base);
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usart_baudrate_set(usart->uart_base, cfg->baud_rate);
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switch (cfg->data_bits)
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{
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case DATA_BITS_8:
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usart_word_length_set(usart->uart_base, USART_WL_8BIT);
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break;
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case DATA_BITS_9:
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usart_word_length_set(usart->uart_base, USART_WL_9BIT);
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break;
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default:
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usart_word_length_set(usart->uart_base, USART_WL_8BIT);
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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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usart_stop_bit_set(usart->uart_base, USART_STB_1BIT);
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break;
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case STOP_BITS_2:
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usart_stop_bit_set(usart->uart_base, USART_STB_2BIT);
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break;
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default:
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usart_stop_bit_set(usart->uart_base, USART_STB_1BIT);
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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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usart_parity_config(usart->uart_base, USART_PM_NONE);
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break;
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case PARITY_ODD:
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usart_parity_config(usart->uart_base, USART_PM_ODD);
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break;
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case PARITY_EVEN:
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usart_parity_config(usart->uart_base, USART_PM_EVEN);
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break;
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default:
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usart_parity_config(usart->uart_base, USART_PM_NONE);
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break;
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}
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usart_hardware_flow_rts_config(usart->uart_base, USART_RTS_DISABLE);
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usart_hardware_flow_cts_config(usart->uart_base, USART_CTS_DISABLE);
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usart_receive_config(usart->uart_base, USART_RECEIVE_ENABLE);
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usart_transmit_config(usart->uart_base, USART_TRANSMIT_ENABLE);
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usart_enable(usart->uart_base);
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return RT_EOK;
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}
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static rt_err_t gd32_control(struct rt_serial_device *serial, int cmd,
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void *arg)
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{
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struct gd32_uart *usart_obj;
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struct gd32_uart_config *usart;
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RT_ASSERT(serial != RT_NULL);
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usart_obj = (struct gd32_uart *) serial->parent.user_data;
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usart = usart_obj->config;
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RT_ASSERT(usart != RT_NULL);
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switch (cmd)
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{
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case RT_DEVICE_CTRL_CLR_INT:
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ECLIC_DisableIRQ(usart->irqn);
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usart_interrupt_disable(usart->uart_base, USART_INT_RBNE);
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break;
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case RT_DEVICE_CTRL_SET_INT:
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ECLIC_EnableIRQ(usart->irqn);
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/* enable USART0 receive interrupt */
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usart_interrupt_enable(usart->uart_base, USART_INT_RBNE);
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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 gd32_putc(struct rt_serial_device *serial, char ch)
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{
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struct gd32_uart *usart_obj;
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struct gd32_uart_config *usart;
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RT_ASSERT(serial != RT_NULL);
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usart_obj = (struct gd32_uart *) serial->parent.user_data;
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usart = usart_obj->config;
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RT_ASSERT(usart != RT_NULL);
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usart_data_transmit(usart->uart_base, (uint8_t) ch);
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while (usart_flag_get(usart->uart_base, USART_FLAG_TBE) == RESET);
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return 1;
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}
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static int gd32_getc(struct rt_serial_device *serial)
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{
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int ch;
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struct gd32_uart *usart_obj;
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struct gd32_uart_config *usart;
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RT_ASSERT(serial != RT_NULL);
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usart_obj = (struct gd32_uart *) serial->parent.user_data;
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usart = usart_obj->config;
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RT_ASSERT(usart != RT_NULL);
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ch = -1;
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if (RESET != usart_flag_get(usart->uart_base, USART_FLAG_RBNE))
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{
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ch = usart_data_receive(usart->uart_base) & 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 gd32_uart_ops = { gd32_configure, gd32_control,
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gd32_putc, gd32_getc,
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RT_NULL
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};
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static void usart_isr(struct rt_serial_device *serial)
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{
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struct gd32_uart *usart_obj;
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struct gd32_uart_config *usart;
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RT_ASSERT(serial != RT_NULL);
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usart_obj = (struct gd32_uart *) serial->parent.user_data;
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usart = usart_obj->config;
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RT_ASSERT(usart != RT_NULL);
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if ((usart_interrupt_flag_get(usart->uart_base, USART_INT_FLAG_RBNE)
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!= RESET)
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&& (RESET != usart_flag_get(usart->uart_base, USART_FLAG_RBNE)))
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{
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rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
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usart_interrupt_flag_clear(usart->uart_base, USART_INT_FLAG_RBNE);
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usart_flag_clear(usart->uart_base, USART_FLAG_RBNE);
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}
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else
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{
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if (usart_flag_get(usart->uart_base, USART_FLAG_CTSF) != RESET)
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{
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usart_flag_clear(usart->uart_base, USART_FLAG_CTSF);
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}
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if (usart_flag_get(usart->uart_base, USART_FLAG_LBDF) != RESET)
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{
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usart_flag_clear(usart->uart_base, USART_FLAG_LBDF);
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}
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if (usart_flag_get(usart->uart_base, USART_FLAG_TC) != RESET)
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{
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usart_flag_clear(usart->uart_base, USART_FLAG_TC);
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}
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}
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}
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#ifdef BSP_USING_UART0
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void USART0_IRQHandler(void)
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{
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rt_interrupt_enter();
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usart_isr(&uart_obj[GDUART0_INDEX].serial);
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rt_interrupt_leave();
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}
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#endif
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#ifdef BSP_USING_UART1
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void USART1_IRQHandler(void)
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{
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rt_interrupt_enter();
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usart_isr(&uart_obj[GDUART1_INDEX].serial);
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rt_interrupt_leave();
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}
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#endif
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#ifdef BSP_USING_UART2
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void USART2_IRQHandler(void)
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{
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rt_interrupt_enter();
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usart_isr(&uart_obj[GDUART2_INDEX].serial);
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rt_interrupt_leave();
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}
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#endif
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#ifdef BSP_USING_UART3
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void UART3_IRQHandler(void)
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{
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rt_interrupt_enter();
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usart_isr(&uart_obj[GDUART3_INDEX].serial);
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rt_interrupt_leave();
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}
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#endif
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#ifdef BSP_USING_UART4
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void UART4_IRQHandler(void)
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{
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rt_interrupt_enter();
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usart_isr(&uart_obj[GDUART4_INDEX].serial);
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rt_interrupt_leave();
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}
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#endif
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int rt_hw_usart_init(void)
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{
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rt_size_t obj_num;
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int index;
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#ifdef BSP_USING_UART0
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rcu_periph_clock_enable(RCU_USART0);
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#endif
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#ifdef BSP_USING_UART1
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rcu_periph_clock_enable(RCU_USART1);
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#endif
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#ifdef BSP_USING_UART2
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rcu_periph_clock_enable(RCU_USART2);
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#endif
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#ifdef BSP_USING_UART3
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rcu_periph_clock_enable(RCU_UART3);
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#endif
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#ifdef BSP_USING_UART4
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rcu_periph_clock_enable(RCU_UART4);
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#endif
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obj_num = sizeof(uart_obj) / sizeof(struct gd32_uart);
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struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
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rt_err_t result = 0;
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for (index = 0; index < obj_num; index++)
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{
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/* init UART object */
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uart_obj[index].config = &uart_config[index];
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uart_obj[index].serial.ops = &gd32_uart_ops;
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uart_obj[index].serial.config = config;
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/* register UART device */
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result = rt_hw_serial_register(&uart_obj[index].serial,
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uart_obj[index].config->name,
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RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX
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| RT_DEVICE_FLAG_INT_TX, &uart_obj[index]);
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RT_ASSERT(result == RT_EOK);
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}
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return result;
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}
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#endif /* RT_USING_SERIAL */
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/******************** end of file *******************/
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