del usart.c usart.h

bsp/imxrt1052-evk/drivers/usart.c

@@ -1,383 +0,0 @@
-/*
- * File      : usart.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006-2013, RT-Thread Development Team
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
- *
- * Change Logs:
- * Date           Author       Notes
- * 2017-10-10     Tanek        the first version
- */
-#include <rtthread.h>
-#include "usart.h"
-
-#include "fsl_common.h"
-#include "fsl_lpuart.h"
-#include "fsl_iomuxc.h"
-
-#ifdef RT_USING_SERIAL
-
-#if !defined(RT_USING_UART0) && !defined(RT_USING_UART1) && \
-    !defined(RT_USING_UART2) && !defined(RT_USING_UART3) && \
-    !defined(RT_USING_UART4) && !defined(RT_USING_UART5) && \
-    !defined(RT_USING_UART6) && !defined(RT_USING_UART7)
-#error "Please define at least one UARTx"
-
-#endif
-
-#include <rtdevice.h>
-
-/* imxrt uart driver */
-struct imxrt_uart
-{
-    LPUART_Type * uart_base;
-    IRQn_Type irqn;
-
-    struct rt_serial_device * serial;
-    char *device_name;
-};
-
-static void uart_isr(struct rt_serial_device *serial);
-
-#if defined(RT_USING_UART1)
-struct rt_serial_device serial1;
-
-void LPUART1_IRQHandler(void)
-{
-    uart_isr(&serial1);
-}
-
-#endif /* RT_USING_UART1 */
-
-#if defined(RT_USING_UART2)
-struct rt_serial_device serial2;
-
-void USART2_IRQHandler(void)
-{
-    uart_isr(&serial2);
-}
-
-#endif /* RT_USING_UART2 */
-
-#if defined(RT_USING_UART3)
-struct rt_serial_device serial3;
-
-void UART3_IRQHandler(void)
-{
-    uart_isr(&serial3);
-}
-
-#endif /* RT_USING_UART3 */
-
-#if defined(RT_USING_UART4)
-struct rt_serial_device serial4;
-
-void UART4_IRQHandler(void)
-{
-    uart_isr(&serial4);
-}
-#endif /* RT_USING_UART4 */
-
-#if defined(RT_USING_UART5)
-struct rt_serial_device serial5;
-
-void USART5_IRQHandler(void)
-{
-    uart_isr(&serial5);
-}
-
-#endif /* RT_USING_UART5 */
-
-#if defined(RT_USING_UART6)
-struct rt_serial_device serial6;
-
-void UART6_IRQHandler(void)
-{
-    uart_isr(&serial6);
-}
-
-#endif /* RT_USING_UART6 */
-
-#if defined(RT_USING_UART7)
-struct rt_serial_device serial7;
-
-void UART7_IRQHandler(void)
-{
-    uart_isr(&serial7);
-}
-
-#endif /* RT_USING_UART7 */
-
-#if defined(RT_USING_UART8)
-struct rt_serial_device serial8;
-
-void UART8_IRQHandler(void)
-{
-    uart_isr(&serial8);
-}
-
-#endif /* RT_USING_UART8 */
-
-static const struct imxrt_uart uarts[] = {
-    #ifdef RT_USING_UART1
-    {
-        LPUART1,
-        LPUART1_IRQn,
-        &serial1,
-        "uart1",
-    },
-    #endif
-
-};
-
-/* Get debug console frequency. */
-uint32_t BOARD_DebugConsoleSrcFreq(void)
-{
-    uint32_t freq;
-
-    /* To make it simple, we assume default PLL and divider settings, and the only variable
-       from application is use PLL3 source or OSC source */
-    if (CLOCK_GetMux(kCLOCK_UartMux) == 0) /* PLL3 div6 80M */
-    {
-        freq = (CLOCK_GetPllFreq(kCLOCK_PllUsb1) / 6U) / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U);
-    }
-    else
-    {
-        freq = CLOCK_GetOscFreq() / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U);
-    }
-
-    return freq;
-}
-
-
-/**
-* @brief UART MSP Initialization
-*        This function configures the hardware resources used in this example:
-*           - Peripheral's clock enable
-*           - Peripheral's GPIO Configuration
-*           - NVIC configuration for UART interrupt request enable
-* @param huart: UART handle pointer
-* @retval None
-*/
-void imxrt_uart_gpio_init(struct imxrt_uart *uart)
-{
-    if (uart->uart_base == LPUART1)
-    {
-        CLOCK_EnableClock(kCLOCK_Iomuxc);          /* iomuxc clock (iomuxc_clk_enable): 0x03u */
-
-        IOMUXC_SetPinMux(
-          IOMUXC_GPIO_AD_B0_12_LPUART1_TX,        /* GPIO_AD_B0_12 is configured as LPUART1_TX */
-          0U);                                    /* Software Input On Field: Input Path is determined by functionality */
-        IOMUXC_SetPinMux(
-          IOMUXC_GPIO_AD_B0_13_LPUART1_RX,        /* GPIO_AD_B0_13 is configured as LPUART1_RX */
-          0U);                                    /* Software Input On Field: Input Path is determined by functionality */
-        IOMUXC_SetPinConfig(
-          IOMUXC_GPIO_AD_B0_12_LPUART1_TX,        /* GPIO_AD_B0_12 PAD functional properties : */
-          0x10B0u);                               /* Slew Rate Field: Slow Slew Rate
-                                                     Drive Strength Field: R0/6
-                                                     Speed Field: medium(100MHz)
-                                                     Open Drain Enable Field: Open Drain Disabled
-                                                     Pull / Keep Enable Field: Pull/Keeper Enabled
-                                                     Pull / Keep Select Field: Keeper
-                                                     Pull Up / Down Config. Field: 100K Ohm Pull Down
-                                                     Hyst. Enable Field: Hysteresis Disabled */
-        IOMUXC_SetPinConfig(
-          IOMUXC_GPIO_AD_B0_13_LPUART1_RX,        /* GPIO_AD_B0_13 PAD functional properties : */
-          0x10B0u);                               /* Slew Rate Field: Slow Slew Rate
-                                                     Drive Strength Field: R0/6
-                                                     Speed Field: medium(100MHz)
-                                                     Open Drain Enable Field: Open Drain Disabled
-                                                     Pull / Keep Enable Field: Pull/Keeper Enabled
-                                                     Pull / Keep Select Field: Keeper
-                                                     Pull Up / Down Config. Field: 100K Ohm Pull Down
-                                                     Hyst. Enable Field: Hysteresis Disabled */
-    }
-    else
-    {
-        RT_ASSERT(RT_NULL);
-    }
-}
-
-static rt_err_t imxrt_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
-{
-    struct imxrt_uart *uart;
-    lpuart_config_t config;
-
-    RT_ASSERT(serial != RT_NULL);
-    RT_ASSERT(cfg != RT_NULL);
-
-    uart = (struct imxrt_uart *)serial->parent.user_data;
-
-    imxrt_uart_gpio_init(uart);
-
-    LPUART_GetDefaultConfig(&config);
-    config.baudRate_Bps = cfg->baud_rate;
-
-    switch (cfg->data_bits)
-    {
-    case DATA_BITS_7:
-        config.dataBitsCount = kLPUART_SevenDataBits;
-        break;
-
-    default:
-        config.dataBitsCount = kLPUART_EightDataBits;
-        break;
-    }
-
-    switch (cfg->stop_bits)
-    {
-    case STOP_BITS_2:
-        config.stopBitCount = kLPUART_TwoStopBit;
-        break;
-    default:
-        config.stopBitCount = kLPUART_OneStopBit;
-        break;
-    }
-
-    switch (cfg->parity)
-    {
-    case PARITY_ODD:
-        config.parityMode = kLPUART_ParityOdd;
-        break;
-    case PARITY_EVEN:
-        config.parityMode = kLPUART_ParityEven;
-        break;
-    default:
-        config.parityMode = kLPUART_ParityDisabled;
-        break;
-    }
-
-    config.enableTx = true;
-    config.enableRx = true;
-
-    LPUART_Init(uart->uart_base, &config, BOARD_DebugConsoleSrcFreq());
-
-
-    return RT_EOK;
-}
-
-static rt_err_t imxrt_control(struct rt_serial_device *serial, int cmd, void *arg)
-{
-    struct imxrt_uart *uart;
-
-    RT_ASSERT(serial != RT_NULL);
-    uart = (struct imxrt_uart *)serial->parent.user_data;
-
-    switch (cmd)
-    {
-    case RT_DEVICE_CTRL_CLR_INT:
-        /* disable interrupt */
-        LPUART_DisableInterrupts(uart->uart_base, kLPUART_RxDataRegFullInterruptEnable);
-        /* disable rx irq */
-        DisableIRQ(uart->irqn);
-
-        break;
-    case RT_DEVICE_CTRL_SET_INT:
-        /* enable interrupt */
-        LPUART_EnableInterrupts(uart->uart_base, kLPUART_RxDataRegFullInterruptEnable);
-        /* enable rx irq */
-        EnableIRQ(uart->irqn);
-        break;
-    }
-
-    return RT_EOK;
-}
-
-static int imxrt_putc(struct rt_serial_device *serial, char ch)
-{
-    struct imxrt_uart *uart;
-
-    RT_ASSERT(serial != RT_NULL);
-    uart = (struct imxrt_uart *)serial->parent.user_data;
-
-    LPUART_WriteByte(uart->uart_base, ch);
-    while(!(LPUART_GetStatusFlags(uart->uart_base) & kLPUART_TxDataRegEmptyFlag));
-
-    return 1;
-}
-
-static int imxrt_getc(struct rt_serial_device *serial)
-{
-    int ch;
-    struct imxrt_uart *uart;
-
-    RT_ASSERT(serial != RT_NULL);
-    uart = (struct imxrt_uart *)serial->parent.user_data;
-
-    ch = -1;
-    if (LPUART_GetStatusFlags(uart->uart_base) & kLPUART_RxDataRegFullFlag)
-        ch = LPUART_ReadByte(uart->uart_base);
-    return ch;
-}
-
-/**
- * Uart common interrupt process. This need add to uart ISR.
- *
- * @param serial serial device
- */
-static void uart_isr(struct rt_serial_device *serial)
-{
-    struct imxrt_uart *uart;
-    LPUART_Type *base;
-
-    RT_ASSERT(serial != RT_NULL);
-    
-    uart = (struct imxrt_uart *) serial->parent.user_data;
-    RT_ASSERT(uart != RT_NULL);
-    
-    base = uart->uart_base;
-    RT_ASSERT(base != RT_NULL);
-
-    /* enter interrupt */
-    rt_interrupt_enter();
-
-    /* UART in mode Receiver -------------------------------------------------*/
-    if (LPUART_GetStatusFlags(base) & kLPUART_RxDataRegFullFlag)
-    {
-        rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
-    }
-    
-    /* If RX overrun. */
-    if (LPUART_STAT_OR_MASK & base->STAT)
-    {
-        /* Clear overrun flag, otherwise the RX does not work. */
-        base->STAT = ((base->STAT & 0x3FE00000U) | LPUART_STAT_OR_MASK);
-    }
-
-    /* leave interrupt */
-    rt_interrupt_leave();
-}
-
-static const struct rt_uart_ops imxrt_uart_ops =
-{
-    imxrt_configure,
-    imxrt_control,
-    imxrt_putc,
-    imxrt_getc,
-};
-
-int imxrt_hw_usart_init(void)
-{
-    struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
-    int i;
-
-    for (i = 0; i < sizeof(uarts) / sizeof(uarts[0]); i++)
-    {
-        uarts[i].serial->ops    = &imxrt_uart_ops;
-        uarts[i].serial->config = config;
-
-        /* register UART1 device */
-        rt_hw_serial_register(uarts[i].serial,
-                              uarts[i].device_name,
-                              RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
-                              (void *)&uarts[i]);
-    }
-
-    return 0;
-}
-INIT_BOARD_EXPORT(imxrt_hw_usart_init);
-
-#endif /*RT_USING_SERIAL */

bsp/imxrt1052-evk/drivers/usart.h

@@ -1,23 +0,0 @@
-/*
- * File      : usart.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2009, RT-Thread Development Team
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
- *
- * Change Logs:
- * Date           Author       Notes
- * 2017-10-10     Tanek        the first version
- */
-
-#ifndef __USART_H__
-#define __USART_H__
-
-#include <rthw.h>
-#include <rtthread.h>
-
-int rt_hw_usart_init(void);
-
-#endif