317 lines
8.1 KiB
C
317 lines
8.1 KiB
C
/*
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* Copyright (c) 2006-2022, 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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* 2022-02-22 airm2m first version
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*/
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#include "board.h"
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#include "drv_usart_v2.h"
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#ifdef RT_USING_SERIAL_V2
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//#define DRV_DEBUG
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#define DBG_TAG "drv.usart"
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#ifdef DRV_DEBUG
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#define DBG_LVL DBG_LOG
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#else
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#define DBG_LVL DBG_INFO
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#endif /* DRV_DEBUG */
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#include <rtdbg.h>
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#if !defined(BSP_USING_UART0) && !defined(BSP_USING_UART1) && !defined(BSP_USING_UART2) && !defined(BSP_USING_UART3)
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#error "Please define at least one BSP_USING_UARTx"
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/* this driver can be disabled at menuconfig -> RT-Thread Components -> Device Drivers */
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#endif
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static struct air_uart_config uart_config[] =
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{
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#ifdef BSP_USING_UART0
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UART0_CONFIG,
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#endif
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#ifdef BSP_USING_UART1
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UART1_CONFIG,
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#endif
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#ifdef BSP_USING_UART2
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UART2_CONFIG,
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#endif
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#ifdef BSP_USING_UART3
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UART3_CONFIG,
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#endif
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};
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enum
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{
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#ifdef BSP_USING_UART0
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UART0_INDEX,
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#endif
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#ifdef BSP_USING_UART1
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UART1_INDEX,
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#endif
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#ifdef BSP_USING_UART2
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UART2_INDEX,
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#endif
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#ifdef BSP_USING_UART3
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UART3_INDEX,
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#endif
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};
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static struct air_uart uart_obj[sizeof(uart_config) / sizeof(uart_config[0])] = {0};
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static void air_uart_get_config(void)
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{
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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_obj[UART0_INDEX].serial.config = config;
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uart_obj[UART0_INDEX].serial.config.rx_bufsz = BSP_UART0_RX_BUFSIZE;
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uart_obj[UART0_INDEX].serial.config.tx_bufsz = BSP_UART0_TX_BUFSIZE;
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#endif
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#ifdef BSP_USING_UART1
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uart_obj[UART1_INDEX].serial.config = config;
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uart_obj[UART1_INDEX].serial.config.rx_bufsz = BSP_UART1_RX_BUFSIZE;
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uart_obj[UART1_INDEX].serial.config.tx_bufsz = BSP_UART1_TX_BUFSIZE;
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#endif
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#ifdef BSP_USING_UART2
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uart_obj[UART2_INDEX].serial.config = config;
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uart_obj[UART2_INDEX].serial.config.rx_bufsz = BSP_UART2_RX_BUFSIZE;
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uart_obj[UART2_INDEX].serial.config.tx_bufsz = BSP_UART2_TX_BUFSIZE;
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#endif
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#ifdef BSP_USING_UART3
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uart_obj[UART3_INDEX].serial.config = config;
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uart_obj[UART3_INDEX].serial.config.rx_bufsz = BSP_UART3_RX_BUFSIZE;
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uart_obj[UART3_INDEX].serial.config.tx_bufsz = BSP_UART3_TX_BUFSIZE;
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#endif
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}
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static int air105_uart_irq(void *pData, void *pParam)
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{
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rt_uint32_t uartid = (rt_uint32_t)pData;
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rt_uint32_t State = (rt_uint32_t)pParam;
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uint8_t temp[32];
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rt_uint32_t len;
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struct rt_serial_device *serial = NULL;
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rt_size_t obj_num = sizeof(uart_obj) / sizeof(struct air_uart);
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for (int i = 0; i < obj_num; i++)
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{
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if (uart_obj[i].config->id == uartid)
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serial = &(uart_obj[i].serial);
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}
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struct rt_serial_rx_fifo *rx_fifo;
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switch (State){
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case UART_CB_TX_BUFFER_DONE:
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break;
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case DMA_CB_DONE:
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DMA_ClearStreamFlag(DBG_UART_TX_DMA_STREAM);
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rt_hw_serial_isr(serial, RT_SERIAL_EVENT_TX_DMADONE);
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break;
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case UART_CB_TX_ALL_DONE:
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rt_hw_serial_isr(serial, RT_SERIAL_EVENT_TX_DMADONE);
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break;
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case UART_CB_RX_BUFFER_FULL:
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break;
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case UART_CB_RX_TIMEOUT:
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case UART_CB_RX_NEW:
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rx_fifo = (struct rt_serial_rx_fifo *) serial->serial_rx;
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len = Uart_FifoRead(uartid, temp);
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if (len)
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{
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rt_ringbuffer_put(&(rx_fifo->rb), temp, len);
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rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
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}
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break;
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case UART_CB_ERROR:
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break;
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case DMA_CB_ERROR:
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break;
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}
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}
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static rt_err_t air105_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
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{
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rt_uint32_t uart_id = serial->parent.user_data;
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RT_ASSERT(serial != RT_NULL);
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RT_ASSERT(cfg != RT_NULL);
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switch (cfg->stop_bits)
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{
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case STOP_BITS_1:
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cfg->stop_bits = UART_STOP_BIT1;
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break;
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case STOP_BITS_2:
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cfg->stop_bits = UART_STOP_BIT2;
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break;
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default:
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cfg->stop_bits = UART_STOP_BIT1_5;
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break;
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}
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Uart_BaseInit(uart_id, cfg->baud_rate, 0, cfg->data_bits, cfg->parity, cfg->stop_bits, air105_uart_irq);
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switch (uart_id){
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case UART_ID0:
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GPIO_Iomux(GPIOA_01, 0);
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GPIO_Iomux(GPIOA_00, 0);
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break;
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case UART_ID1:
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GPIO_Iomux(GPIOC_01, 3);
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GPIO_Iomux(GPIOC_00, 3);
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break;
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case UART_ID2:
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GPIO_Iomux(GPIOD_13, 0);
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GPIO_Iomux(GPIOD_12, 0);
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break;
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case UART_ID3:
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GPIO_Iomux(GPIOE_08, 2);
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GPIO_Iomux(GPIOE_09, 2);
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break;
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default:
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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 rt_err_t air105_control(struct rt_serial_device *serial, int cmd, void *arg)
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{
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rt_uint32_t uart_id = serial->parent.user_data;
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rt_ubase_t ctrl_arg = (rt_ubase_t)arg;
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RT_ASSERT(serial != RT_NULL);
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switch (cmd)
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{
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/* disable interrupt */
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case RT_DEVICE_CTRL_CLR_INT:
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Uart_IrqOnOff(uart_id, 0);
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if (DBG_UART_ID == uart_id)
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{
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DMA_StopStream(DBG_UART_TX_DMA_STREAM);
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}
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break;
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case RT_DEVICE_CTRL_SET_INT:
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break;
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case RT_DEVICE_CTRL_CONFIG:
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if (ctrl_arg & (RT_SERIAL_RX_NON_BLOCKING|RT_SERIAL_RX_BLOCKING))
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{
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Uart_EnableRxIrq(uart_id);
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}
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Uart_IrqOnOff(uart_id, 1);
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break;
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case RT_DEVICE_CHECK_OPTMODE:
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return RT_SERIAL_TX_BLOCKING_NO_BUFFER;
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case RT_DEVICE_CTRL_CLOSE:
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Uart_DeInit(uart_id);
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switch (uart_id){
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case UART_ID0:
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GPIO_Iomux(GPIOA_01, 1);
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GPIO_Iomux(GPIOA_00, 1);
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break;
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case UART_ID1:
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GPIO_Iomux(GPIOC_01, 1);
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GPIO_Iomux(GPIOC_00, 1);
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break;
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case UART_ID2:
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GPIO_Iomux(GPIOD_13, 1);
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GPIO_Iomux(GPIOD_12, 1);
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break;
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case UART_ID3:
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GPIO_Iomux(GPIOE_08, 1);
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GPIO_Iomux(GPIOE_09, 1);
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break;
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default:
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break;
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}
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break;
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default:
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return -RT_EINVAL;
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}
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return RT_EOK;
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}
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static int air105_putc(struct rt_serial_device *serial, char c)
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{
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rt_uint32_t uart_id = serial->parent.user_data;
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RT_ASSERT(serial != RT_NULL);
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Uart_NoBlockTx(uart_id, c);
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return 1;
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}
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static int air105_getc(struct rt_serial_device *serial)
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{
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rt_uint32_t uart_id = serial->parent.user_data;
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RT_ASSERT(serial != RT_NULL);
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uint8_t data;
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if (Uart_ReadByte(uart_id, &data) < 0)
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{
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return -1;
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}
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else
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{
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return data;
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}
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}
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static rt_ssize_t air105_transmit(struct rt_serial_device *serial,
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rt_uint8_t *buf,
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rt_size_t size,
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rt_uint32_t tx_flag)
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{
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rt_uint32_t uart_id = serial->parent.user_data;
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RT_ASSERT(serial != RT_NULL);
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RT_ASSERT(buf != RT_NULL);
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if (DBG_UART_ID == uart_id)
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{
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Uart_BlockTx(uart_id, buf, size);
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}
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else
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{
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Uart_BufferTx(uart_id, buf, size);
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}
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return size;
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}
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static const struct rt_uart_ops air105_uart_ops =
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{
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.configure = air105_configure,
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.control = air105_control,
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.putc = air105_putc,
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.getc = air105_getc,
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.transmit = air105_transmit
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};
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int rt_hw_usart_init(void)
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{
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rt_err_t result = 0;
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rt_size_t obj_num = sizeof(uart_obj) / sizeof(struct air_uart);
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air_uart_get_config();
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for (int i = 0; i < obj_num; i++)
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{
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/* init UART object */
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uart_obj[i].config = &uart_config[i];
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if (uart_obj[i].config->id == DBG_UART_ID)
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uart_obj[i].serial.config.baud_rate = DBG_UART_BR;
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uart_obj[i].serial.ops = &air105_uart_ops;
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/* register UART device */
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result = rt_hw_serial_register(&uart_obj[i].serial,uart_obj[i].config->name,
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RT_DEVICE_FLAG_RDWR,
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i);
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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_V2 */
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