623 lines
15 KiB
C
623 lines
15 KiB
C
/*
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* Copyright (C) 2021, Huada Semiconductor 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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* 2021-08-19 pjq first version
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*/
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/*******************************************************************************
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* Include files
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******************************************************************************/
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#include <rtdevice.h>
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#include <rthw.h>
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#include "gpio.h"
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#include "uart.h"
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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)
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#error "Please define at least one BSP_USING_UARTx"
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/* UART instance can be selected at menuconfig -> Hardware Drivers Config -> On-chip Peripheral Drivers -> Enable UART */
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#endif
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/*******************************************************************************
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* Local type definitions ('typedef')
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******************************************************************************/
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/* HC32 config Rx timeout */
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struct hc32_uart_rxto
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{
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rt_uint32_t channel;
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rt_size_t timeout_bits;
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};
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/* HC32 UART index */
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struct uart_index
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{
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rt_uint8_t index;
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rt_uint8_t idx;
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};
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/* HC32 UART irq handler */
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struct uart_irq_handler
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{
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void (*tx_irq_handler)(void);
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void (*rxerr_irq_handler)(void);
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void (*rx_irq_handler)(void);
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void (*cts_irq_handler)(void);
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void (*pei_irq_handler)(void);
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};
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/*******************************************************************************
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* Local pre-processor symbols/macros ('#define')
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******************************************************************************/
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/*******************************************************************************
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* Global variable definitions (declared in header file with 'extern')
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******************************************************************************/
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/*******************************************************************************
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* Local function prototypes ('static')
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******************************************************************************/
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#ifdef RT_SERIAL_USING_DMA
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static void hc32_dma_config(struct rt_serial_device *serial, rt_ubase_t flag);
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#endif
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/*******************************************************************************
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* Local variable definitions ('static')
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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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UART_INDEX_MAX,
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};
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static const struct uart_index uart_map[] =
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{
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#ifdef BSP_USING_UART0
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{UART0_INDEX, UARTCH0},
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#endif
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#ifdef BSP_USING_UART1
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{UART1_INDEX, UARTCH1},
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#endif
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};
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static struct hc32_uart_config uart_config[] =
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{
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#ifdef BSP_USING_UART0
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{ \
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.name = "uart0", \
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.idx = UARTCH0, \
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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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.name = "uart1", \
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.idx = UARTCH1, \
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}
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#endif
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};
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#ifdef BSP_USING_UART0
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static int uart0_rx_flag;
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#endif
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#ifdef BSP_USING_UART1
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static int uart1_rx_flag;
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#endif
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static struct hc32_uart uart_obj[sizeof(uart_config) / sizeof(uart_config[0])] = {0};
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static const struct uart_irq_handler uart_irq_handlers[sizeof(uart_obj) / sizeof(uart_obj[0])];
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/*******************************************************************************
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* Function implementation - global ('extern') and local ('static')
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******************************************************************************/
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//static uint32_t hc32_get_uart_index(M0P_UART_TypeDef *Instance)
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static uint32_t hc32_get_uart_index(uint8_t idx)
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{
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uint32_t index = UART_INDEX_MAX;
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for (uint8_t i = 0U; i < ARRAY_SZ(uart_map); i++)
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{
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if (uart_map[i].idx == idx)
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{
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index = uart_map[i].index;
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RT_ASSERT(index < UART_INDEX_MAX)
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break;
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}
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}
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return index;
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}
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#if defined(BSP_USING_UART0)
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void uart0_gpioinit(void)
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{
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stc_gpio_config_t stcGpioCfg;
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DDL_ZERO_STRUCT(stcGpioCfg);
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stcGpioCfg.enDir = GpioDirOut;
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Gpio_Init(GpioPortA,GpioPin9,&stcGpioCfg);
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Gpio_SetAfMode(GpioPortA,GpioPin9,GpioAf1);//TX
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stcGpioCfg.enDir = GpioDirIn;
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Gpio_Init(GpioPortA,GpioPin10,&stcGpioCfg);
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Gpio_SetAfMode(GpioPortA,GpioPin10,GpioAf1);//RX
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}
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#endif
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#if defined(BSP_USING_UART1)
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void uart1_gpioinit(void)
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{
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stc_gpio_config_t stcGpioCfg;
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DDL_ZERO_STRUCT(stcGpioCfg);
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stcGpioCfg.enDir = GpioDirOut;
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Gpio_Init(GpioPortA,GpioPin2,&stcGpioCfg);
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Gpio_SetAfMode(GpioPortA,GpioPin2,GpioAf1);//TX
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stcGpioCfg.enDir = GpioDirIn;
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Gpio_Init(GpioPortA,GpioPin3,&stcGpioCfg);
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Gpio_SetAfMode(GpioPortA,GpioPin3,GpioAf1);//RX
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}
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#endif
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static rt_err_t hc32_configure(struct rt_serial_device *serial,
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struct serial_configure *cfg)
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{
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struct hc32_uart *uart;
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uint16_t u16Scnt = 0;
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stc_uart_config_t stcConfig;
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stc_uart_irq_cb_t stcUartIrqCb;
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stc_uart_multimode_t stcMulti;
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stc_uart_baud_t stcBaud;
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uint8_t index;
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en_uart_mmdorck_t enTb8;
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DDL_ZERO_STRUCT(stcConfig);
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DDL_ZERO_STRUCT(stcUartIrqCb);
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DDL_ZERO_STRUCT(stcMulti);
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DDL_ZERO_STRUCT(stcBaud);
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RT_ASSERT(RT_NULL != cfg);
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RT_ASSERT(RT_NULL != serial);
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uart = rt_container_of(serial, struct hc32_uart, serial);
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#if defined(BSP_USING_UART0)
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if (uart->config->idx == UARTCH0)
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{
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uart0_gpioinit();
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}
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#endif
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#if defined(BSP_USING_UART1)
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if (uart->config->idx == UARTCH1)
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{
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uart1_gpioinit();
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}
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#endif
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/* Configure USART initialization structure */
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index = hc32_get_uart_index(uart->config->idx);
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stcUartIrqCb.pfnRxIrqCb = uart_irq_handlers[index].rx_irq_handler;
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stcUartIrqCb.pfnTxIrqCb = uart_irq_handlers[index].tx_irq_handler;
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stcUartIrqCb.pfnRxFEIrqCb = uart_irq_handlers[index].rxerr_irq_handler;
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stcUartIrqCb.pfnPEIrqCb = uart_irq_handlers[index].pei_irq_handler;
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stcUartIrqCb.pfnCtsIrqCb = uart_irq_handlers[index].cts_irq_handler;
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stcConfig.pstcIrqCb = &stcUartIrqCb;
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stcConfig.bTouchNvic = TRUE;
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stcConfig.enRunMode = UartMode3;
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stcMulti.enMulti_mode = UartNormal;
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if(BIT_ORDER_LSB == cfg->bit_order)
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{
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}
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else
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{
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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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stcConfig.enStopBit = Uart1bit;
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break;
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case STOP_BITS_2:
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stcConfig.enStopBit = Uart2bit;
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break;
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default:
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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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enTb8 = UartDataOrAddr;
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break;
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case PARITY_EVEN:
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enTb8 = UartEven;
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break;
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case PARITY_ODD:
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enTb8 = UartOdd;
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break;
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default:
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enTb8 = UartDataOrAddr;
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break;
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}
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switch(cfg->data_bits)
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{
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case DATA_BITS_8:
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break;
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default:
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return -RT_ERROR;
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}
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Uart_SetMMDOrCk(uart->config->idx, enTb8);
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stcConfig.pstcMultiMode = &stcMulti;
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Uart_Init(uart->config->idx, &stcConfig);
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Uart_SetClkDiv(uart->config->idx, Uart8Or16Div);
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stcBaud.u32Pclk = Sysctrl_GetPClkFreq();
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stcBaud.enRunMode = UartMode3;
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stcBaud.u32Baud = cfg->baud_rate;
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u16Scnt = Uart_CalScnt(uart->config->idx, &stcBaud);
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Uart_SetBaud(uart->config->idx, u16Scnt);
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Uart_ClrStatus(uart->config->idx, UartTC);
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Uart_ClrStatus(uart->config->idx, UartRC);
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Uart_DisableIrq(uart->config->idx, UartTxIrq);
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Uart_DisableIrq(uart->config->idx, UartRxIrq);
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Uart_EnableFunc(uart->config->idx, UartRx);
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return RT_EOK;
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}
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static rt_err_t hc32_control(struct rt_serial_device *serial, int cmd, void *arg)
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{
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struct hc32_uart *uart;
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RT_ASSERT(serial != RT_NULL);
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uart = rt_container_of(serial, struct hc32_uart, serial);
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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_DisableIrq(uart->config->idx, UartRxIrq);
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break;
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/* enable interrupt */
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case RT_DEVICE_CTRL_SET_INT:
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/* enable rx irq */
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Uart_ClrStatus(uart->config->idx, UartRC);
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Uart_EnableIrq(uart->config->idx, UartRxIrq);
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break;
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case RT_DEVICE_CTRL_CLOSE:
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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 hc32_putc(struct rt_serial_device *serial, char c)
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{
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struct hc32_uart *uart;
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RT_ASSERT(RT_NULL != serial);
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uart = rt_container_of(serial, struct hc32_uart, serial);
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if(serial->parent.open_flag & RT_DEVICE_FLAG_INT_TX)
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{
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if (Uart_GetStatus(uart->config->idx, UartTC) == FALSE)
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{
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return -1;
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}
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}
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Uart_SendData(uart->config->idx, c);
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return 1;
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}
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static int hc32_getc(struct rt_serial_device *serial)
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{
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int ch= -1;
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struct hc32_uart *uart;
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RT_ASSERT(RT_NULL != serial);
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uart = rt_container_of(serial, struct hc32_uart, serial);
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#if defined(BSP_USING_UART0)
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if (uart->config->idx == UARTCH0)
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{
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if (serial->parent.open_flag & RT_DEVICE_FLAG_INT_RX)
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{
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if (uart0_rx_flag)
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{
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ch = Uart_ReceiveData(uart->config->idx);
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uart0_rx_flag = 0;
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}
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}
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else
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{
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if(Uart_GetStatus(uart->config->idx, UartRC))
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{
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Uart_ClrStatus(uart->config->idx, UartRC);
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ch = Uart_ReceiveData(uart->config->idx);
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}
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}
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}
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#endif
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#if defined(BSP_USING_UART1)
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if (uart->config->idx == UARTCH1)
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{
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if (serial->parent.open_flag & RT_DEVICE_FLAG_INT_RX)
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{
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if (uart1_rx_flag)
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{
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ch = Uart_ReceiveData(uart->config->idx);
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uart1_rx_flag = 0;
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}
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}
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else
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{
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if(Uart_GetStatus(uart->config->idx, UartRC))
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{
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Uart_ClrStatus(uart->config->idx, UartRC);
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ch = Uart_ReceiveData(uart->config->idx);
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}
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}
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}
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#endif
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return ch;
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}
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static rt_ssize_t hc32_dma_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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int direction)
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{
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return 0;
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}
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static void hc32_uart_rx_irq_handler(struct hc32_uart *uart)
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{
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RT_ASSERT(RT_NULL != uart);
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rt_hw_serial_isr(&uart->serial, RT_SERIAL_EVENT_RX_IND);
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}
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static void hc32_uart_tx_irq_handler(struct hc32_uart *uart)
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{
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RT_ASSERT(RT_NULL != uart);
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if (uart->serial.parent.open_flag & RT_DEVICE_FLAG_INT_TX)
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{
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rt_hw_serial_isr(&uart->serial, RT_SERIAL_EVENT_TX_DONE);
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}
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}
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static void hc32_uart_rxerr_irq_handler(struct hc32_uart *uart)
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{
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RT_ASSERT(RT_NULL != uart);
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}
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static void hc32_uart_cts_irq_handler(struct hc32_uart *uart)
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{
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RT_ASSERT(RT_NULL != uart);
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}
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static void hc32_uart_pei_irq_handler(struct hc32_uart *uart)
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{
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RT_ASSERT(RT_NULL != uart);
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}
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#ifdef RT_SERIAL_USING_DMA
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static void hc32_dma_config(struct rt_serial_device *serial, rt_ubase_t flag)
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{
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}
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#endif
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#if defined(BSP_USING_UART0)
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static void hc32_uart0_rx_irq_handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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uart0_rx_flag = 1;
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hc32_uart_rx_irq_handler(&uart_obj[UART0_INDEX]);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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static void hc32_uart0_tx_irq_handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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hc32_uart_tx_irq_handler(&uart_obj[UART0_INDEX]);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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static void hc32_uart0_rxerr_irq_handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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hc32_uart_rxerr_irq_handler(&uart_obj[UART0_INDEX]);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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static void hc32_uart0_cts_irq_handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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hc32_uart_cts_irq_handler(&uart_obj[UART0_INDEX]);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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static void hc32_uart0_pei_irq_handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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hc32_uart_pei_irq_handler(&uart_obj[UART0_INDEX]);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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#endif /* BSP_USING_UART0 */
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#if defined(BSP_USING_UART1)
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static void hc32_uart1_tx_irq_handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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hc32_uart_tx_irq_handler(&uart_obj[UART1_INDEX]);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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static void hc32_uart1_rxerr_irq_handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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hc32_uart_rxerr_irq_handler(&uart_obj[UART1_INDEX]);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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static void hc32_uart1_rx_irq_handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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uart1_rx_flag = 1;
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hc32_uart_rx_irq_handler(&uart_obj[UART1_INDEX]);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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static void hc32_uart1_cts_irq_handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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hc32_uart_cts_irq_handler(&uart_obj[UART1_INDEX]);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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static void hc32_uart1_pei_irq_handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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hc32_uart_pei_irq_handler(&uart_obj[UART1_INDEX]);
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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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static const struct uart_irq_handler uart_irq_handlers[] =
|
|
{
|
|
#ifdef BSP_USING_UART0
|
|
{ hc32_uart0_tx_irq_handler, hc32_uart0_rxerr_irq_handler, hc32_uart0_rx_irq_handler,
|
|
hc32_uart0_cts_irq_handler, hc32_uart0_pei_irq_handler
|
|
},
|
|
#endif
|
|
#ifdef BSP_USING_UART1
|
|
{ hc32_uart1_tx_irq_handler, hc32_uart1_rxerr_irq_handler, hc32_uart1_rx_irq_handler,
|
|
hc32_uart1_cts_irq_handler, hc32_uart1_pei_irq_handler
|
|
},
|
|
#endif
|
|
};
|
|
|
|
static void hc32_uart_get_dma_config(void)
|
|
{
|
|
|
|
}
|
|
|
|
static const struct rt_uart_ops hc32_uart_ops =
|
|
{
|
|
.configure = hc32_configure,
|
|
.control = hc32_control,
|
|
.putc = hc32_putc,
|
|
.getc = hc32_getc,
|
|
.dma_transmit = hc32_dma_transmit
|
|
};
|
|
|
|
int hc32_hw_uart_init(void)
|
|
{
|
|
rt_err_t result = RT_EOK;
|
|
rt_size_t obj_num = sizeof(uart_obj) / sizeof(struct hc32_uart);
|
|
struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
|
|
|
|
hc32_uart_get_dma_config();
|
|
|
|
Sysctrl_SetPeripheralGate(SysctrlPeripheralGpio,TRUE);
|
|
#ifdef BSP_USING_UART0
|
|
Sysctrl_SetPeripheralGate(SysctrlPeripheralUart0,TRUE);
|
|
#endif
|
|
#ifdef BSP_USING_UART1
|
|
Sysctrl_SetPeripheralGate(SysctrlPeripheralUart1,TRUE);
|
|
#endif
|
|
|
|
for (int i = 0; i < obj_num; i++)
|
|
{
|
|
/* init UART object */
|
|
uart_obj[i].serial.ops = &hc32_uart_ops;
|
|
uart_obj[i].serial.config = config;
|
|
uart_obj[i].config = &uart_config[i];
|
|
|
|
/* register UART device */
|
|
result = rt_hw_serial_register(&uart_obj[i].serial,
|
|
uart_obj[i].config->name,
|
|
(RT_DEVICE_FLAG_RDWR |
|
|
RT_DEVICE_FLAG_INT_RX |
|
|
RT_DEVICE_FLAG_INT_TX |
|
|
uart_obj[i].uart_dma_flag),
|
|
&uart_obj[i]);
|
|
RT_ASSERT(result == RT_EOK);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
INIT_BOARD_EXPORT(hc32_hw_uart_init);
|
|
|
|
#endif /* RT_USING_SERIAL */
|
|
|
|
/*******************************************************************************
|
|
* EOF (not truncated)
|
|
******************************************************************************/
|