serial_manager.c

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/*
 * Copyright 2018-2020 NXP
 * All rights reserved.
 *
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
 
#include "fsl_common.h"
#include <string.h>
 
#include "serial_manager.h"
#include "serial_port_internal.h"
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
 
#include "generic_list.h"
 
/*
 * The OSA_USED macro can only be defined when the OSA component is used.
 * If the source code of the OSA component does not exist, the OSA_USED cannot be defined.
 * OR, If OSA component is not added into project event the OSA source code exists, the OSA_USED
 * also cannot be defined.
 * The source code path of the OSA component is <MCUXpresso_SDK>/components/osa.
 *
 */
#if defined(OSA_USED)
 
#if (defined(SERIAL_MANAGER_USE_COMMON_TASK) && (SERIAL_MANAGER_USE_COMMON_TASK > 0U))
#include "common_task.h"
#else
#include "fsl_os_abstraction.h"
#endif
 
#endif
 
#endif
 
/*******************************************************************************
 * Definitions
 ******************************************************************************/
 
#ifndef NDEBUG
#if (defined(DEBUG_CONSOLE_ASSERT_DISABLE) && (DEBUG_CONSOLE_ASSERT_DISABLE > 0U))
#undef assert
#define assert(n)
#endif
#endif
 
#define SERIAL_EVENT_DATA_RECEIVED (1U << 0)
#define SERIAL_EVENT_DATA_SENT     (1U << 1)
 
#define SERIAL_MANAGER_WRITE_TAG 0xAABB5754U
#define SERIAL_MANAGER_READ_TAG  0xBBAA5244U
 
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
typedef enum _serial_manager_transmission_mode
{
    kSerialManager_TransmissionBlocking    = 0x0U, 
    kSerialManager_TransmissionNonBlocking = 0x1U, 
} serial_manager_transmission_mode_t;
 
/* TX transfer structure */
typedef struct _serial_manager_transfer
{
    uint8_t *buffer;
    volatile uint32_t length;
    volatile uint32_t soFar;
    serial_manager_transmission_mode_t mode;
    serial_manager_status_t status;
} serial_manager_transfer_t;
#endif
 
/* write handle structure */
typedef struct _serial_manager_send_handle
{
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
    list_element_t link; 
    serial_manager_transfer_t transfer;
#endif
    struct _serial_manager_handle *serialManagerHandle;
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
    serial_manager_callback_t callback;
    void *callbackParam;
    uint32_t tag;
#endif
} serial_manager_write_handle_t;
 
typedef serial_manager_write_handle_t serial_manager_read_handle_t;
 
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
/* receive state structure */
typedef struct _serial_manager_read_ring_buffer
{
    uint8_t *ringBuffer;
    uint32_t ringBufferSize;
    volatile uint32_t ringHead;
    volatile uint32_t ringTail;
} serial_manager_read_ring_buffer_t;
#endif
 
#if defined(__CC_ARM)
#pragma anon_unions
#endif
/* The serial manager handle structure */
typedef struct _serial_manager_handle
{
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
    list_label_t runningWriteHandleHead;   
    list_label_t completedWriteHandleHead; 
#endif
    serial_manager_read_handle_t *volatile openedReadHandleHead;
    volatile uint32_t openedWriteHandleCount;
    union
    {
        uint32_t lowLevelhandleBuffer[1];
#if (defined(SERIAL_PORT_TYPE_UART) && (SERIAL_PORT_TYPE_UART > 0U))
        uint8_t uartHandleBuffer[SERIAL_PORT_UART_HANDLE_SIZE];
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC) && (SERIAL_PORT_TYPE_USBCDC > 0U))
        uint8_t usbcdcHandleBuffer[SERIAL_PORT_USB_CDC_HANDLE_SIZE];
#endif
#if (defined(SERIAL_PORT_TYPE_SWO) && (SERIAL_PORT_TYPE_SWO > 0U))
        uint8_t swoHandleBuffer[SERIAL_PORT_SWO_HANDLE_SIZE];
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC_VIRTUAL) && (SERIAL_PORT_TYPE_USBCDC_VIRTUAL > 0U))
        uint8_t usbcdcVirtualHandleBuffer[SERIAL_PORT_USB_VIRTUAL_HANDLE_SIZE];
#endif
    };
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
    serial_manager_read_ring_buffer_t ringBuffer;
#endif
 
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
 
#if defined(OSA_USED)
 
#if (defined(SERIAL_MANAGER_USE_COMMON_TASK) && (SERIAL_MANAGER_USE_COMMON_TASK > 0U))
    common_task_message_t commontaskMsg;
#else
    OSA_EVENT_HANDLE_DEFINE(event); 
    OSA_TASK_HANDLE_DEFINE(taskId); 
#endif
 
#endif
 
#endif
 
    serial_port_type_t type;
} serial_manager_handle_t;
 
/*******************************************************************************
 * Prototypes
 ******************************************************************************/
 
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
static void SerialManager_Task(void *param);
#endif
 
/*******************************************************************************
 * Variables
 ******************************************************************************/
 
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
 
#if defined(OSA_USED)
 
#if (defined(SERIAL_MANAGER_USE_COMMON_TASK) && (SERIAL_MANAGER_USE_COMMON_TASK > 0U))
 
#else
                                    /*
                                     * \brief Defines the serial manager task's stack
                                     */
OSA_TASK_DEFINE(SerialManager_Task, SERIAL_MANAGER_TASK_PRIORITY, 1, SERIAL_MANAGER_TASK_STACK_SIZE, false);
#endif
 
#endif
 
#endif
 
/*******************************************************************************
 * Code
 ******************************************************************************/
 
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
static void SerialManager_AddTail(list_label_t *queue, serial_manager_write_handle_t *node)
{
    (void)LIST_AddTail(queue, &node->link);
}
 
static void SerialManager_RemoveHead(list_label_t *queue)
{
    (void)LIST_RemoveHead(queue);
}
#endif
 
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
 
static serial_manager_status_t SerialManager_StartWriting(serial_manager_handle_t *handle)
{
    serial_manager_status_t status = kStatus_SerialManager_Error;
    serial_manager_write_handle_t *writeHandle =
        (serial_manager_write_handle_t *)(void *)LIST_GetHead(&handle->runningWriteHandleHead);
 
    if (writeHandle != NULL)
    {
        switch (handle->type)
        {
#if (defined(SERIAL_PORT_TYPE_UART) && (SERIAL_PORT_TYPE_UART > 0U))
            case kSerialPort_Uart:
                status = Serial_UartWrite(((serial_handle_t)&handle->lowLevelhandleBuffer[0]),
                                          writeHandle->transfer.buffer, writeHandle->transfer.length);
                break;
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC) && (SERIAL_PORT_TYPE_USBCDC > 0U))
            case kSerialPort_UsbCdc:
                status = Serial_UsbCdcWrite(((serial_handle_t)&handle->lowLevelhandleBuffer[0]),
                                            writeHandle->transfer.buffer, writeHandle->transfer.length);
                break;
#endif
#if (defined(SERIAL_PORT_TYPE_SWO) && (SERIAL_PORT_TYPE_SWO > 0U))
            case kSerialPort_Swo:
                status = Serial_SwoWrite(((serial_handle_t)&handle->lowLevelhandleBuffer[0]),
                                         writeHandle->transfer.buffer, writeHandle->transfer.length);
                break;
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC_VIRTUAL) && (SERIAL_PORT_TYPE_USBCDC_VIRTUAL > 0U))
            case kSerialPort_UsbCdcVirtual:
                status = Serial_UsbCdcVirtualWrite(((serial_handle_t)&handle->lowLevelhandleBuffer[0]),
                                                   writeHandle->transfer.buffer, writeHandle->transfer.length);
                break;
#endif
            default:
                status = kStatus_SerialManager_Error;
                break;
        }
    }
    return status;
}
 
static serial_manager_status_t SerialManager_StartReading(serial_manager_handle_t *handle,
                                                          serial_manager_read_handle_t *readHandle,
                                                          uint8_t *buffer,
                                                          uint32_t length)
{
    serial_manager_status_t status = kStatus_SerialManager_Error;
 
    if (NULL != readHandle)
    {
#if (defined(SERIAL_PORT_TYPE_USBCDC) && (SERIAL_PORT_TYPE_USBCDC > 0U))
        if (handle->type == kSerialPort_UsbCdc)
        {
            status = Serial_UsbCdcRead(((serial_handle_t)&handle->lowLevelhandleBuffer[0]), buffer, length);
        }
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC_VIRTUAL) && (SERIAL_PORT_TYPE_USBCDC_VIRTUAL > 0U))
        if (handle->type == kSerialPort_UsbCdcVirtual)
        {
            status = Serial_UsbCdcVirtualRead(((serial_handle_t)&handle->lowLevelhandleBuffer[0]), buffer, length);
        }
#endif
    }
    return status;
}
 
#else /*SERIAL_MANAGER_NON_BLOCKING_MODE > 0U*/
 
static serial_manager_status_t SerialManager_StartWriting(serial_manager_handle_t *handle,
                                                          serial_manager_write_handle_t *writeHandle,
                                                          uint8_t *buffer,
                                                          uint32_t length)
{
    serial_manager_status_t status = kStatus_SerialManager_Error;
 
#if (defined(SERIAL_PORT_TYPE_UART) && (SERIAL_PORT_TYPE_UART > 0U))
    if (kSerialPort_Uart == handle->type) /* Serial port UART */
    {
        status = Serial_UartWrite(((serial_handle_t)&handle->lowLevelhandleBuffer[0]), buffer, length);
    }
    else
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC) && (SERIAL_PORT_TYPE_USBCDC > 0U))
        if (kSerialPort_UsbCdc == handle->type) /* Serial port UsbCdc */
    {
        status = Serial_UsbCdcWrite(((serial_handle_t)&handle->lowLevelhandleBuffer[0]), buffer, length);
    }
    else
#endif
#if (defined(SERIAL_PORT_TYPE_SWO) && (SERIAL_PORT_TYPE_SWO > 0U))
        if (kSerialPort_Swo == handle->type) /* Serial port SWO */
    {
        status = Serial_SwoWrite(((serial_handle_t)&handle->lowLevelhandleBuffer[0]), buffer, length);
    }
    else
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC_VIRTUAL) && (SERIAL_PORT_TYPE_USBCDC_VIRTUAL > 0U))
        if (kSerialPort_UsbCdcVirtual == handle->type) /* Serial port UsbCdcVirtual */
    {
        status = Serial_UsbCdcVirtualWrite(((serial_handle_t)&handle->lowLevelhandleBuffer[0]), buffer, length);
    }
    else
#endif
    {
        /*MISRA rule*/
    }
    return status;
}
 
static serial_manager_status_t SerialManager_StartReading(serial_manager_handle_t *handle,
                                                          serial_manager_read_handle_t *readHandle,
                                                          uint8_t *buffer,
                                                          uint32_t length)
{
    serial_manager_status_t status = kStatus_SerialManager_Error;
 
#if (defined(SERIAL_PORT_TYPE_UART) && (SERIAL_PORT_TYPE_UART > 0U))
    if (kSerialPort_Uart == handle->type) /* Serial port UART */
    {
        status = Serial_UartRead(((serial_handle_t)&handle->lowLevelhandleBuffer[0]), buffer, length);
    }
    else
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC) && (SERIAL_PORT_TYPE_USBCDC > 0U))
        if (kSerialPort_UsbCdc == handle->type) /* Serial port UsbCdc */
    {
        status = Serial_UsbCdcRead(((serial_handle_t)&handle->lowLevelhandleBuffer[0]), buffer, length);
    }
    else
#endif
#if (defined(SERIAL_PORT_TYPE_SWO) && (SERIAL_PORT_TYPE_SWO > 0U))
        if (kSerialPort_Swo == handle->type) /* Serial port SWO */
    {
        status = Serial_SwoRead(((serial_handle_t)&handle->lowLevelhandleBuffer[0]), buffer, length);
    }
    else
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC_VIRTUAL) && (SERIAL_PORT_TYPE_USBCDC_VIRTUAL > 0U))
        if (kSerialPort_UsbCdcVirtual == handle->type) /* Serial port UsbCdcVirtual */
    {
        status = Serial_UsbCdcVirtualRead(((serial_handle_t)&handle->lowLevelhandleBuffer[0]), buffer, length);
    }
#endif
    {
        /*MISRA rule*/
    }
    return status;
}
#endif /*SERIAL_MANAGER_NON_BLOCKING_MODE > 0U*/
 
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
static void SerialManager_IsrFunction(serial_manager_handle_t *handle)
{
    uint32_t regPrimask = DisableGlobalIRQ();
    switch (handle->type)
    {
#if (defined(SERIAL_PORT_TYPE_UART) && (SERIAL_PORT_TYPE_UART > 0U))
        case kSerialPort_Uart:
            Serial_UartIsrFunction(((serial_handle_t)&handle->lowLevelhandleBuffer[0]));
            break;
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC) && (SERIAL_PORT_TYPE_USBCDC > 0U))
        case kSerialPort_UsbCdc:
            Serial_UsbCdcIsrFunction(((serial_handle_t)&handle->lowLevelhandleBuffer[0]));
            break;
#endif
#if (defined(SERIAL_PORT_TYPE_SWO) && (SERIAL_PORT_TYPE_SWO > 0U))
        case kSerialPort_Swo:
            Serial_SwoIsrFunction(((serial_handle_t)&handle->lowLevelhandleBuffer[0]));
            break;
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC_VIRTUAL) && (SERIAL_PORT_TYPE_USBCDC_VIRTUAL > 0U))
        case kSerialPort_UsbCdcVirtual:
            Serial_UsbCdcVirtualIsrFunction(((serial_handle_t)&handle->lowLevelhandleBuffer[0]));
            break;
#endif
        default:
            /*MISRA rule 16.4*/
            break;
    }
    EnableGlobalIRQ(regPrimask);
}
 
static void SerialManager_Task(void *param)
{
    serial_manager_handle_t *handle = (serial_manager_handle_t *)param;
    serial_manager_write_handle_t *serialWriteHandle;
    serial_manager_read_handle_t *serialReadHandle;
    uint32_t primask;
    serial_manager_callback_message_t msg;
 
    if (NULL != handle)
    {
#if defined(OSA_USED)
 
#if (defined(SERIAL_MANAGER_USE_COMMON_TASK) && (SERIAL_MANAGER_USE_COMMON_TASK > 0U))
#else
        osa_event_flags_t ev = 0;
 
        do
        {
            if (KOSA_StatusSuccess ==
                OSA_EventWait((osa_event_handle_t)handle->event, osaEventFlagsAll_c, false, osaWaitForever_c, &ev))
            {
                if (ev & SERIAL_EVENT_DATA_SENT)
#endif
 
#endif
        {
            serialWriteHandle =
                (serial_manager_write_handle_t *)(void *)LIST_GetHead(&handle->completedWriteHandleHead);
            while (NULL != serialWriteHandle)
            {
                SerialManager_RemoveHead(&handle->completedWriteHandleHead);
                msg.buffer                         = serialWriteHandle->transfer.buffer;
                msg.length                         = serialWriteHandle->transfer.soFar;
                serialWriteHandle->transfer.buffer = NULL;
                if (NULL != serialWriteHandle->callback)
                {
                    serialWriteHandle->callback(serialWriteHandle->callbackParam, &msg,
                                                serialWriteHandle->transfer.status);
                }
                serialWriteHandle =
                    (serial_manager_write_handle_t *)(void *)LIST_GetHead(&handle->completedWriteHandleHead);
            }
        }
#if defined(OSA_USED)
 
#if (defined(SERIAL_MANAGER_USE_COMMON_TASK) && (SERIAL_MANAGER_USE_COMMON_TASK > 0U))
#else
                if (ev & SERIAL_EVENT_DATA_RECEIVED)
#endif
 
#endif
        {
            primask          = DisableGlobalIRQ();
            serialReadHandle = handle->openedReadHandleHead;
            EnableGlobalIRQ(primask);
 
            if (NULL != serialReadHandle)
            {
                if (NULL != serialReadHandle->transfer.buffer)
                {
                    if (serialReadHandle->transfer.soFar >= serialReadHandle->transfer.length)
                    {
                        msg.buffer                        = serialReadHandle->transfer.buffer;
                        msg.length                        = serialReadHandle->transfer.soFar;
                        serialReadHandle->transfer.buffer = NULL;
                        if (NULL != serialReadHandle->callback)
                        {
                            serialReadHandle->callback(serialReadHandle->callbackParam, &msg,
                                                       serialReadHandle->transfer.status);
                        }
                    }
                }
            }
        }
#if defined(OSA_USED)
 
#if (defined(SERIAL_MANAGER_USE_COMMON_TASK) && (SERIAL_MANAGER_USE_COMMON_TASK > 0U))
#else
            }
        } while (gUseRtos_c);
#endif
 
#endif
    }
}
#endif
 
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
static void SerialManager_TxCallback(void *callbackParam,
                                     serial_manager_callback_message_t *message,
                                     serial_manager_status_t status)
{
    serial_manager_handle_t *handle;
    serial_manager_write_handle_t *writeHandle;
 
    assert(callbackParam);
    assert(message);
 
    handle = (serial_manager_handle_t *)callbackParam;
 
    writeHandle = (serial_manager_write_handle_t *)(void *)LIST_GetHead(&handle->runningWriteHandleHead);
 
    if (NULL != writeHandle)
    {
        SerialManager_RemoveHead(&handle->runningWriteHandleHead);
        (void)SerialManager_StartWriting(handle);
        writeHandle->transfer.soFar  = message->length;
        writeHandle->transfer.status = status;
        if (kSerialManager_TransmissionNonBlocking == writeHandle->transfer.mode)
        {
            SerialManager_AddTail(&handle->completedWriteHandleHead, writeHandle);
#if defined(OSA_USED)
 
#if (defined(SERIAL_MANAGER_USE_COMMON_TASK) && (SERIAL_MANAGER_USE_COMMON_TASK > 0U))
            handle->commontaskMsg.callback      = SerialManager_Task;
            handle->commontaskMsg.callbackParam = handle;
            COMMON_TASK_post_message(&handle->commontaskMsg);
#else
            (void)OSA_EventSet((osa_event_handle_t)handle->event, SERIAL_EVENT_DATA_SENT);
#endif
 
#else
            SerialManager_Task(handle);
#endif
        }
        else
        {
            writeHandle->transfer.buffer = NULL;
        }
    }
}
 
static void SerialManager_RxCallback(void *callbackParam,
                                     serial_manager_callback_message_t *message,
                                     serial_manager_status_t status)
{
    serial_manager_handle_t *handle;
    uint32_t ringBufferLength;
    uint32_t primask;
 
    assert(callbackParam);
    assert(message);
 
    handle = (serial_manager_handle_t *)callbackParam;
 
    status = kStatus_SerialManager_Notify;
 
    for (uint32_t i = 0; i < message->length; i++)
    {
        handle->ringBuffer.ringBuffer[handle->ringBuffer.ringHead++] = message->buffer[i];
        if (handle->ringBuffer.ringHead >= handle->ringBuffer.ringBufferSize)
        {
            handle->ringBuffer.ringHead = 0U;
        }
        if (handle->ringBuffer.ringHead == handle->ringBuffer.ringTail)
        {
            status = kStatus_SerialManager_RingBufferOverflow;
            handle->ringBuffer.ringTail++;
            if (handle->ringBuffer.ringTail >= handle->ringBuffer.ringBufferSize)
            {
                handle->ringBuffer.ringTail = 0U;
            }
        }
    }
 
    ringBufferLength = handle->ringBuffer.ringHead + handle->ringBuffer.ringBufferSize - handle->ringBuffer.ringTail;
    ringBufferLength = ringBufferLength % handle->ringBuffer.ringBufferSize;
 
    primask = DisableGlobalIRQ();
    if ((NULL != handle->openedReadHandleHead) && (NULL != handle->openedReadHandleHead->transfer.buffer))
    {
        if (handle->openedReadHandleHead->transfer.length > handle->openedReadHandleHead->transfer.soFar)
        {
            uint32_t remainLength =
                handle->openedReadHandleHead->transfer.length - handle->openedReadHandleHead->transfer.soFar;
            for (uint32_t i = 0; i < MIN(ringBufferLength, remainLength); i++)
            {
                handle->openedReadHandleHead->transfer.buffer[handle->openedReadHandleHead->transfer.soFar] =
                    handle->ringBuffer.ringBuffer[handle->ringBuffer.ringTail];
                handle->ringBuffer.ringTail++;
                handle->openedReadHandleHead->transfer.soFar++;
                if (handle->ringBuffer.ringTail >= handle->ringBuffer.ringBufferSize)
                {
                    handle->ringBuffer.ringTail = 0U;
                }
            }
            ringBufferLength = ringBufferLength - MIN(ringBufferLength, remainLength);
        }
 
        if (handle->openedReadHandleHead->transfer.length > handle->openedReadHandleHead->transfer.soFar)
        {
        }
        else
        {
            if (kSerialManager_TransmissionBlocking == handle->openedReadHandleHead->transfer.mode)
            {
                handle->openedReadHandleHead->transfer.buffer = NULL;
            }
            else
            {
                handle->openedReadHandleHead->transfer.status = kStatus_SerialManager_Success;
 
#if defined(OSA_USED)
 
#if (defined(SERIAL_MANAGER_USE_COMMON_TASK) && (SERIAL_MANAGER_USE_COMMON_TASK > 0U))
                handle->commontaskMsg.callback      = SerialManager_Task;
                handle->commontaskMsg.callbackParam = handle;
                COMMON_TASK_post_message(&handle->commontaskMsg);
#else
                (void)OSA_EventSet((osa_event_handle_t)handle->event, SERIAL_EVENT_DATA_RECEIVED);
#endif
 
#else
                SerialManager_Task(handle);
#endif
            }
        }
    }
 
    if (0U != ringBufferLength)
    {
        message->buffer = NULL;
        message->length = ringBufferLength;
        if ((NULL != handle->openedReadHandleHead) && (NULL != handle->openedReadHandleHead->callback))
        {
            handle->openedReadHandleHead->callback(handle->openedReadHandleHead->callbackParam, message, status);
        }
    }
 
    ringBufferLength = handle->ringBuffer.ringBufferSize - 1U - ringBufferLength;
 
    if (NULL != handle->openedReadHandleHead)
    {
        (void)SerialManager_StartReading(handle, handle->openedReadHandleHead, NULL, ringBufferLength);
    }
    EnableGlobalIRQ(primask);
}
 
static serial_manager_status_t SerialManager_Write(serial_write_handle_t writeHandle,
                                                   uint8_t *buffer,
                                                   uint32_t length,
                                                   serial_manager_transmission_mode_t mode)
{
    serial_manager_write_handle_t *serialWriteHandle;
    serial_manager_handle_t *handle;
    serial_manager_status_t status = kStatus_SerialManager_Success;
    uint32_t primask;
    uint8_t isEmpty = 0U;
 
    assert(writeHandle);
    assert(buffer);
    assert(length);
 
    serialWriteHandle = (serial_manager_write_handle_t *)writeHandle;
    handle            = serialWriteHandle->serialManagerHandle;
 
    assert(handle);
    assert(SERIAL_MANAGER_WRITE_TAG == serialWriteHandle->tag);
    assert(!((kSerialManager_TransmissionNonBlocking == mode) && (NULL == serialWriteHandle->callback)));
 
    primask = DisableGlobalIRQ();
    if (NULL != serialWriteHandle->transfer.buffer)
    {
        EnableGlobalIRQ(primask);
        return kStatus_SerialManager_Busy;
    }
    serialWriteHandle->transfer.buffer = buffer;
    serialWriteHandle->transfer.length = length;
    serialWriteHandle->transfer.soFar  = 0U;
    serialWriteHandle->transfer.mode   = mode;
 
    if (NULL == LIST_GetHead(&handle->runningWriteHandleHead))
    {
        isEmpty = 1U;
    }
    SerialManager_AddTail(&handle->runningWriteHandleHead, serialWriteHandle);
    EnableGlobalIRQ(primask);
 
    if (0U != isEmpty)
    {
        status = SerialManager_StartWriting(handle);
        if ((serial_manager_status_t)kStatus_SerialManager_Success != status)
        {
#if (USB_CDC_SERIAL_MANAGER_RUN_NO_HOST == 1)
            if (status == kStatus_SerialManager_NotConnected)
            {
                SerialManager_RemoveHead(&handle->runningWriteHandleHead);
                serialWriteHandle->transfer.buffer = 0;
                serialWriteHandle->transfer.length = 0;
            }
#endif /* USB_CDC_SERIAL_MANAGER_RUN_NO_HOST == 1 */
            return status;
        }
    }
 
    if (kSerialManager_TransmissionBlocking == mode)
    {
        while (serialWriteHandle->transfer.length > serialWriteHandle->transfer.soFar)
        {
#if defined(__GIC_PRIO_BITS)
            if (0x13 == (__get_CPSR() & CPSR_M_Msk))
#else
            if (0U != __get_IPSR())
#endif
            {
                SerialManager_IsrFunction(handle);
            }
        }
    }
    return kStatus_SerialManager_Success;
}
 
static serial_manager_status_t SerialManager_Read(serial_read_handle_t readHandle,
                                                  uint8_t *buffer,
                                                  uint32_t length,
                                                  serial_manager_transmission_mode_t mode,
                                                  uint32_t *receivedLength)
{
    serial_manager_read_handle_t *serialReadHandle;
    serial_manager_handle_t *handle;
    uint32_t dataLength;
    uint32_t primask;
 
    assert(readHandle);
    assert(buffer);
    assert(length);
 
    serialReadHandle = (serial_manager_read_handle_t *)readHandle;
    handle           = serialReadHandle->serialManagerHandle;
 
    assert(handle);
    assert(SERIAL_MANAGER_READ_TAG == serialReadHandle->tag);
    assert(!((kSerialManager_TransmissionNonBlocking == mode) && (NULL == serialReadHandle->callback)));
 
    primask = DisableGlobalIRQ();
    if (NULL != serialReadHandle->transfer.buffer)
    {
        EnableGlobalIRQ(primask);
        return kStatus_SerialManager_Busy;
    }
    serialReadHandle->transfer.buffer = buffer;
    serialReadHandle->transfer.length = length;
    serialReadHandle->transfer.soFar  = 0U;
    serialReadHandle->transfer.mode   = mode;
 
    dataLength = handle->ringBuffer.ringHead + handle->ringBuffer.ringBufferSize - handle->ringBuffer.ringTail;
    dataLength = dataLength % handle->ringBuffer.ringBufferSize;
 
    for (serialReadHandle->transfer.soFar = 0U; serialReadHandle->transfer.soFar < MIN(dataLength, length);
         serialReadHandle->transfer.soFar++)
    {
        buffer[serialReadHandle->transfer.soFar] = handle->ringBuffer.ringBuffer[handle->ringBuffer.ringTail];
        handle->ringBuffer.ringTail++;
        if (handle->ringBuffer.ringTail >= handle->ringBuffer.ringBufferSize)
        {
            handle->ringBuffer.ringTail = 0U;
        }
    }
 
    dataLength = handle->ringBuffer.ringHead + handle->ringBuffer.ringBufferSize - handle->ringBuffer.ringTail;
    dataLength = dataLength % handle->ringBuffer.ringBufferSize;
    dataLength = handle->ringBuffer.ringBufferSize - 1U - dataLength;
 
    (void)SerialManager_StartReading(handle, readHandle, NULL, dataLength);
 
    if (NULL != receivedLength)
    {
        *receivedLength                   = serialReadHandle->transfer.soFar;
        serialReadHandle->transfer.buffer = NULL;
        EnableGlobalIRQ(primask);
    }
    else
    {
        if (serialReadHandle->transfer.soFar >= serialReadHandle->transfer.length)
        {
            serialReadHandle->transfer.buffer = NULL;
            EnableGlobalIRQ(primask);
            if (kSerialManager_TransmissionNonBlocking == mode)
            {
                if (NULL != serialReadHandle->callback)
                {
                    serial_manager_callback_message_t msg;
                    msg.buffer = buffer;
                    msg.length = serialReadHandle->transfer.soFar;
                    serialReadHandle->callback(serialReadHandle->callbackParam, &msg, kStatus_SerialManager_Success);
                }
            }
        }
        else
        {
            EnableGlobalIRQ(primask);
        }
 
        if (kSerialManager_TransmissionBlocking == mode)
        {
            while (serialReadHandle->transfer.length > serialReadHandle->transfer.soFar)
            {
            }
        }
    }
 
    return kStatus_SerialManager_Success;
}
 
#else
 
static serial_manager_status_t SerialManager_Write(serial_write_handle_t writeHandle, uint8_t *buffer, uint32_t length)
{
    serial_manager_write_handle_t *serialWriteHandle;
    serial_manager_handle_t *handle;
 
    assert(writeHandle);
    assert(buffer);
    assert(length);
 
    serialWriteHandle = (serial_manager_write_handle_t *)writeHandle;
    handle            = serialWriteHandle->serialManagerHandle;
 
    assert(handle);
 
    return SerialManager_StartWriting(handle, serialWriteHandle, buffer, length);
}
 
static serial_manager_status_t SerialManager_Read(serial_read_handle_t readHandle, uint8_t *buffer, uint32_t length)
{
    serial_manager_read_handle_t *serialReadHandle;
    serial_manager_handle_t *handle;
 
    assert(readHandle);
    assert(buffer);
    assert(length);
 
    serialReadHandle = (serial_manager_read_handle_t *)readHandle;
    handle           = serialReadHandle->serialManagerHandle;
 
    assert(handle);
 
    return SerialManager_StartReading(handle, serialReadHandle, buffer, length);
}
#endif
 
serial_manager_status_t SerialManager_Init(serial_handle_t serialHandle, serial_manager_config_t *config)
{
    serial_manager_handle_t *handle;
    serial_manager_status_t status = kStatus_SerialManager_Error;
 
    assert(config);
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
    assert(config->ringBuffer);
    assert(config->ringBufferSize);
#endif
    assert(serialHandle);
    assert(SERIAL_MANAGER_HANDLE_SIZE >= sizeof(serial_manager_handle_t));
 
    handle = (serial_manager_handle_t *)serialHandle;
 
    (void)memset(handle, 0, SERIAL_MANAGER_HANDLE_SIZE);
 
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
 
#if defined(OSA_USED)
 
#if (defined(SERIAL_MANAGER_USE_COMMON_TASK) && (SERIAL_MANAGER_USE_COMMON_TASK > 0U))
 
    COMMON_TASK_init();
 
#else
    if (KOSA_StatusSuccess != OSA_EventCreate((osa_event_handle_t)handle->event, true))
    {
        return kStatus_SerialManager_Error;
    }
 
    if (KOSA_StatusSuccess != OSA_TaskCreate((osa_task_handle_t)handle->taskId, OSA_TASK(SerialManager_Task), handle))
    {
        return kStatus_SerialManager_Error;
    }
#endif
 
#endif
 
#endif
 
    handle->type = config->type;
 
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
    handle->ringBuffer.ringBuffer     = config->ringBuffer;
    handle->ringBuffer.ringBufferSize = config->ringBufferSize;
#endif
 
    switch (config->type)
    {
#if (defined(SERIAL_PORT_TYPE_UART) && (SERIAL_PORT_TYPE_UART > 0U))
        case kSerialPort_Uart:
            status = Serial_UartInit(((serial_handle_t)&handle->lowLevelhandleBuffer[0]), config->portConfig);
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
            if ((serial_manager_status_t)kStatus_SerialManager_Success == status)
            {
                status = Serial_UartInstallTxCallback(((serial_handle_t)&handle->lowLevelhandleBuffer[0]),
                                                      SerialManager_TxCallback, handle);
                if ((serial_manager_status_t)kStatus_SerialManager_Success == status)
                {
                    status = Serial_UartInstallRxCallback(((serial_handle_t)&handle->lowLevelhandleBuffer[0]),
                                                          SerialManager_RxCallback, handle);
                }
            }
#endif
            break;
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC) && (SERIAL_PORT_TYPE_USBCDC > 0U))
        case kSerialPort_UsbCdc:
            status = Serial_UsbCdcInit(((serial_handle_t)&handle->lowLevelhandleBuffer[0]), config->portConfig);
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
            if (kStatus_SerialManager_Success == status)
            {
                status = Serial_UsbCdcInstallTxCallback(((serial_handle_t)&handle->lowLevelhandleBuffer[0]),
                                                        SerialManager_TxCallback, handle);
                if (kStatus_SerialManager_Success == status)
                {
                    status = Serial_UsbCdcInstallRxCallback(((serial_handle_t)&handle->lowLevelhandleBuffer[0]),
                                                            SerialManager_RxCallback, handle);
                }
            }
#endif
            break;
#endif
#if (defined(SERIAL_PORT_TYPE_SWO) && (SERIAL_PORT_TYPE_SWO > 0U))
        case kSerialPort_Swo:
            status = Serial_SwoInit(((serial_handle_t)&handle->lowLevelhandleBuffer[0]), config->portConfig);
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
            if (kStatus_SerialManager_Success == status)
            {
                status = Serial_SwoInstallTxCallback(((serial_handle_t)&handle->lowLevelhandleBuffer[0]),
                                                     SerialManager_TxCallback, handle);
            }
#endif
            break;
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC_VIRTUAL) && (SERIAL_PORT_TYPE_USBCDC_VIRTUAL > 0U))
        case kSerialPort_UsbCdcVirtual:
            status = Serial_UsbCdcVirtualInit(((serial_handle_t)&handle->lowLevelhandleBuffer[0]), config->portConfig);
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
            if (kStatus_SerialManager_Success == status)
            {
                status = Serial_UsbCdcVirtualInstallTxCallback(((serial_handle_t)&handle->lowLevelhandleBuffer[0]),
                                                               SerialManager_TxCallback, handle);
                if (kStatus_SerialManager_Success == status)
                {
                    status = Serial_UsbCdcVirtualInstallRxCallback(((serial_handle_t)&handle->lowLevelhandleBuffer[0]),
                                                                   SerialManager_RxCallback, handle);
                }
            }
#endif
            break;
#endif
        default:
            /*MISRA rule 16.4*/
            break;
    }
 
    return status;
}
 
serial_manager_status_t SerialManager_Deinit(serial_handle_t serialHandle)
{
    serial_manager_handle_t *handle;
    uint32_t primask;
 
    assert(serialHandle);
 
    handle = (serial_manager_handle_t *)serialHandle;
 
    primask = DisableGlobalIRQ();
    if ((NULL != handle->openedReadHandleHead) || (0U != handle->openedWriteHandleCount))
    {
        EnableGlobalIRQ(primask);
        return kStatus_SerialManager_Busy;
    }
    EnableGlobalIRQ(primask);
 
    switch (handle->type)
    {
#if (defined(SERIAL_PORT_TYPE_UART) && (SERIAL_PORT_TYPE_UART > 0U))
        case kSerialPort_Uart:
            (void)Serial_UartDeinit(((serial_handle_t)&handle->lowLevelhandleBuffer[0]));
            break;
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC) && (SERIAL_PORT_TYPE_USBCDC > 0U))
        case kSerialPort_UsbCdc:
            (void)Serial_UsbCdcDeinit(((serial_handle_t)&handle->lowLevelhandleBuffer[0]));
            break;
#endif
#if (defined(SERIAL_PORT_TYPE_SWO) && (SERIAL_PORT_TYPE_SWO > 0U))
        case kSerialPort_Swo:
            (void)Serial_SwoDeinit(((serial_handle_t)&handle->lowLevelhandleBuffer[0]));
            break;
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC_VIRTUAL) && (SERIAL_PORT_TYPE_USBCDC_VIRTUAL > 0U))
        case kSerialPort_UsbCdcVirtual:
            (void)Serial_UsbCdcVirtualDeinit(((serial_handle_t)&handle->lowLevelhandleBuffer[0]));
            break;
#endif
        default:
            /*MISRA rule 16.4*/
            break;
    }
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
 
#if defined(OSA_USED)
 
#if (defined(SERIAL_MANAGER_USE_COMMON_TASK) && (SERIAL_MANAGER_USE_COMMON_TASK > 0U))
#else
    OSA_EventDestroy((osa_event_handle_t)handle->event);
    OSA_TaskDestroy((osa_task_handle_t)handle->taskId);
#endif
 
#endif
 
#endif
 
    return kStatus_SerialManager_Success;
}
 
serial_manager_status_t SerialManager_OpenWriteHandle(serial_handle_t serialHandle, serial_write_handle_t writeHandle)
{
    serial_manager_handle_t *handle;
    serial_manager_write_handle_t *serialWriteHandle;
    uint32_t primask;
 
    assert(serialHandle);
    assert(writeHandle);
    assert(SERIAL_MANAGER_WRITE_HANDLE_SIZE >= sizeof(serial_manager_write_handle_t));
 
    handle            = (serial_manager_handle_t *)serialHandle;
    serialWriteHandle = (serial_manager_write_handle_t *)writeHandle;
 
    (void)memset(writeHandle, 0, SERIAL_MANAGER_WRITE_HANDLE_SIZE);
 
    primask = DisableGlobalIRQ();
    handle->openedWriteHandleCount++;
    EnableGlobalIRQ(primask);
 
    serialWriteHandle->serialManagerHandle = handle;
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
    serialWriteHandle->tag = SERIAL_MANAGER_WRITE_TAG;
#endif
 
    return kStatus_SerialManager_Success;
}
 
serial_manager_status_t SerialManager_CloseWriteHandle(serial_write_handle_t writeHandle)
{
    serial_manager_handle_t *handle;
    serial_manager_write_handle_t *serialWriteHandle;
    uint32_t primask;
 
    assert(writeHandle);
 
    serialWriteHandle = (serial_manager_write_handle_t *)writeHandle;
    handle            = (serial_manager_handle_t *)(void *)serialWriteHandle->serialManagerHandle;
 
    assert(handle);
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
    assert(SERIAL_MANAGER_WRITE_TAG == serialWriteHandle->tag);
#endif
 
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
    (void)SerialManager_CancelWriting(writeHandle);
#endif
    primask = DisableGlobalIRQ();
    if (handle->openedWriteHandleCount > 0U)
    {
        handle->openedWriteHandleCount--;
    }
    EnableGlobalIRQ(primask);
 
    (void)memset(writeHandle, 0, SERIAL_MANAGER_WRITE_HANDLE_SIZE);
 
    return kStatus_SerialManager_Success;
}
 
serial_manager_status_t SerialManager_OpenReadHandle(serial_handle_t serialHandle, serial_read_handle_t readHandle)
{
    serial_manager_handle_t *handle;
    serial_manager_read_handle_t *serialReadHandle;
    uint32_t primask;
 
    assert(serialHandle);
    assert(readHandle);
    assert(SERIAL_MANAGER_READ_HANDLE_SIZE >= sizeof(serial_manager_read_handle_t));
 
    handle           = (serial_manager_handle_t *)serialHandle;
    serialReadHandle = (serial_manager_read_handle_t *)readHandle;
 
    primask = DisableGlobalIRQ();
    if (handle->openedReadHandleHead != NULL)
    {
        EnableGlobalIRQ(primask);
        return kStatus_SerialManager_Busy;
    }
    handle->openedReadHandleHead = serialReadHandle;
    EnableGlobalIRQ(primask);
 
    (void)memset(readHandle, 0, SERIAL_MANAGER_READ_HANDLE_SIZE);
 
    serialReadHandle->serialManagerHandle = handle;
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
    serialReadHandle->tag = SERIAL_MANAGER_READ_TAG;
#endif
 
    return kStatus_SerialManager_Success;
}
 
serial_manager_status_t SerialManager_CloseReadHandle(serial_read_handle_t readHandle)
{
    serial_manager_handle_t *handle;
    serial_manager_read_handle_t *serialReadHandle;
    uint32_t primask;
 
    assert(readHandle);
 
    serialReadHandle = (serial_manager_read_handle_t *)readHandle;
    handle           = (serial_manager_handle_t *)(void *)serialReadHandle->serialManagerHandle;
 
    assert((NULL != handle) && (handle->openedReadHandleHead == serialReadHandle));
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
    assert(SERIAL_MANAGER_READ_TAG == serialReadHandle->tag);
#endif
 
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
    (void)SerialManager_CancelReading(readHandle);
#endif
 
    primask                      = DisableGlobalIRQ();
    handle->openedReadHandleHead = NULL;
    EnableGlobalIRQ(primask);
 
    (void)memset(readHandle, 0, SERIAL_MANAGER_READ_HANDLE_SIZE);
 
    return kStatus_SerialManager_Success;
}
 
serial_manager_status_t SerialManager_WriteBlocking(serial_write_handle_t writeHandle, uint8_t *buffer, uint32_t length)
{
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
    return SerialManager_Write(writeHandle, buffer, length, kSerialManager_TransmissionBlocking);
#else
    return SerialManager_Write(writeHandle, buffer, length);
#endif
}
 
serial_manager_status_t SerialManager_ReadBlocking(serial_read_handle_t readHandle, uint8_t *buffer, uint32_t length)
{
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
    return SerialManager_Read(readHandle, buffer, length, kSerialManager_TransmissionBlocking, NULL);
#else
    return SerialManager_Read(readHandle, buffer, length);
#endif
}
 
#if (defined(SERIAL_MANAGER_NON_BLOCKING_MODE) && (SERIAL_MANAGER_NON_BLOCKING_MODE > 0U))
serial_manager_status_t SerialManager_WriteNonBlocking(serial_write_handle_t writeHandle,
                                                       uint8_t *buffer,
                                                       uint32_t length)
{
    return SerialManager_Write(writeHandle, buffer, length, kSerialManager_TransmissionNonBlocking);
}
 
serial_manager_status_t SerialManager_ReadNonBlocking(serial_read_handle_t readHandle, uint8_t *buffer, uint32_t length)
{
    return SerialManager_Read(readHandle, buffer, length, kSerialManager_TransmissionNonBlocking, NULL);
}
 
serial_manager_status_t SerialManager_CancelWriting(serial_write_handle_t writeHandle)
{
    serial_manager_write_handle_t *serialWriteHandle;
    uint32_t primask;
    uint8_t isNotUsed = 0;
 
    assert(writeHandle);
 
    serialWriteHandle = (serial_manager_write_handle_t *)writeHandle;
 
    assert(serialWriteHandle->serialManagerHandle);
    assert(SERIAL_MANAGER_WRITE_TAG == serialWriteHandle->tag);
 
    if ((NULL != serialWriteHandle->transfer.buffer) &&
        (kSerialManager_TransmissionBlocking == serialWriteHandle->transfer.mode))
    {
        return kStatus_SerialManager_Error;
    }
 
    primask = DisableGlobalIRQ();
    if (serialWriteHandle != (serial_manager_write_handle_t *)(void *)LIST_GetHead(
                                 &serialWriteHandle->serialManagerHandle->runningWriteHandleHead))
    {
        (void)LIST_RemoveElement(&serialWriteHandle->link);
        isNotUsed = 1;
    }
    EnableGlobalIRQ(primask);
 
    if (0U != isNotUsed)
    {
        serialWriteHandle->transfer.soFar  = 0;
        serialWriteHandle->transfer.status = kStatus_SerialManager_Canceled;
 
        SerialManager_AddTail(&serialWriteHandle->serialManagerHandle->completedWriteHandleHead, serialWriteHandle);
#if defined(OSA_USED)
 
#if (defined(SERIAL_MANAGER_USE_COMMON_TASK) && (SERIAL_MANAGER_USE_COMMON_TASK > 0U))
        serialWriteHandle->serialManagerHandle->commontaskMsg.callback      = SerialManager_Task;
        serialWriteHandle->serialManagerHandle->commontaskMsg.callbackParam = serialWriteHandle->serialManagerHandle;
        COMMON_TASK_post_message(&serialWriteHandle->serialManagerHandle->commontaskMsg);
#else
        (void)OSA_EventSet((osa_event_handle_t)serialWriteHandle->serialManagerHandle->event, SERIAL_EVENT_DATA_SENT);
#endif
 
#else
        SerialManager_Task(serialWriteHandle->serialManagerHandle);
#endif
    }
    else
    {
        switch (serialWriteHandle->serialManagerHandle->type)
        {
#if (defined(SERIAL_PORT_TYPE_UART) && (SERIAL_PORT_TYPE_UART > 0U))
            case kSerialPort_Uart:
                (void)Serial_UartCancelWrite(
                    ((serial_handle_t)&serialWriteHandle->serialManagerHandle->lowLevelhandleBuffer[0]));
                break;
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC) && (SERIAL_PORT_TYPE_USBCDC > 0U))
            case kSerialPort_UsbCdc:
                (void)Serial_UsbCdcCancelWrite(
                    ((serial_handle_t)&serialWriteHandle->serialManagerHandle->lowLevelhandleBuffer[0]));
                break;
#endif
#if (defined(SERIAL_PORT_TYPE_SWO) && (SERIAL_PORT_TYPE_SWO > 0U))
            case kSerialPort_Swo:
                (void)Serial_SwoCancelWrite(
                    ((serial_handle_t)&serialWriteHandle->serialManagerHandle->lowLevelhandleBuffer[0]));
                break;
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC_VIRTUAL) && (SERIAL_PORT_TYPE_USBCDC_VIRTUAL > 0U))
            case kSerialPort_UsbCdcVirtual:
                (void)Serial_UsbCdcVirtualCancelWrite(
                    ((serial_handle_t)&serialWriteHandle->serialManagerHandle->lowLevelhandleBuffer[0]));
                break;
#endif
            default:
                /*MISRA rule 16.4*/
                break;
        }
    }
 
    (void)SerialManager_StartWriting(serialWriteHandle->serialManagerHandle);
 
    return kStatus_SerialManager_Success;
}
 
serial_manager_status_t SerialManager_CancelReading(serial_read_handle_t readHandle)
{
    serial_manager_read_handle_t *serialReadHandle;
    serial_manager_callback_message_t msg;
    uint8_t *buffer;
    uint32_t primask;
 
    assert(readHandle);
 
    serialReadHandle = (serial_manager_read_handle_t *)readHandle;
 
    assert(SERIAL_MANAGER_READ_TAG == serialReadHandle->tag);
 
    if ((NULL != serialReadHandle->transfer.buffer) &&
        (kSerialManager_TransmissionBlocking == serialReadHandle->transfer.mode))
    {
        return kStatus_SerialManager_Error;
    }
 
    primask                           = DisableGlobalIRQ();
    buffer                            = serialReadHandle->transfer.buffer;
    serialReadHandle->transfer.buffer = NULL;
    serialReadHandle->transfer.length = 0;
    msg.buffer                        = buffer;
    msg.length                        = serialReadHandle->transfer.soFar;
    EnableGlobalIRQ(primask);
 
    if (NULL != buffer)
    {
        if (NULL != serialReadHandle->callback)
        {
            serialReadHandle->callback(serialReadHandle->callbackParam, &msg, kStatus_SerialManager_Canceled);
        }
    }
    return kStatus_SerialManager_Success;
}
 
serial_manager_status_t SerialManager_TryRead(serial_read_handle_t readHandle,
                                              uint8_t *buffer,
                                              uint32_t length,
                                              uint32_t *receivedLength)
{
    assert(receivedLength);
 
    return SerialManager_Read(readHandle, buffer, length, kSerialManager_TransmissionBlocking, receivedLength);
}
 
serial_manager_status_t SerialManager_InstallTxCallback(serial_write_handle_t writeHandle,
                                                        serial_manager_callback_t callback,
                                                        void *callbackParam)
{
    serial_manager_write_handle_t *serialWriteHandle;
 
    assert(writeHandle);
 
    serialWriteHandle = (serial_manager_write_handle_t *)writeHandle;
 
    assert(SERIAL_MANAGER_WRITE_TAG == serialWriteHandle->tag);
 
    serialWriteHandle->callbackParam = callbackParam;
    serialWriteHandle->callback      = callback;
 
    return kStatus_SerialManager_Success;
}
 
serial_manager_status_t SerialManager_InstallRxCallback(serial_read_handle_t readHandle,
                                                        serial_manager_callback_t callback,
                                                        void *callbackParam)
{
    serial_manager_read_handle_t *serialReadHandle;
 
    assert(readHandle);
 
    serialReadHandle = (serial_manager_read_handle_t *)readHandle;
 
    assert(SERIAL_MANAGER_READ_TAG == serialReadHandle->tag);
 
    serialReadHandle->callbackParam = callbackParam;
    serialReadHandle->callback      = callback;
 
    return kStatus_SerialManager_Success;
}
#endif
 
serial_manager_status_t SerialManager_EnterLowpower(serial_handle_t serialHandle)
{
    serial_manager_handle_t *handle;
    serial_manager_status_t status = kStatus_SerialManager_Error;
 
    assert(serialHandle);
 
    handle = (serial_manager_handle_t *)serialHandle;
 
    switch (handle->type)
    {
#if (defined(SERIAL_PORT_TYPE_UART) && (SERIAL_PORT_TYPE_UART > 0U))
        case kSerialPort_Uart:
            status = Serial_UartEnterLowpower(((serial_handle_t)&handle->lowLevelhandleBuffer[0]));
            break;
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC) && (SERIAL_PORT_TYPE_USBCDC > 0U))
        case kSerialPort_UsbCdc:
            break;
#endif
#if (defined(SERIAL_PORT_TYPE_SWO) && (SERIAL_PORT_TYPE_SWO > 0U))
        case kSerialPort_Swo:
            break;
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC_VIRTUAL) && (SERIAL_PORT_TYPE_USBCDC_VIRTUAL > 0U))
        case kSerialPort_UsbCdcVirtual:
            break;
#endif
        default:
            /*MISRA rule 16.4*/
            break;
    }
    return status;
}
 
serial_manager_status_t SerialManager_ExitLowpower(serial_handle_t serialHandle)
{
    serial_manager_handle_t *handle;
    serial_manager_status_t status = kStatus_SerialManager_Error;
 
    assert(serialHandle);
 
    handle = (serial_manager_handle_t *)serialHandle;
 
    switch (handle->type)
    {
#if (defined(SERIAL_PORT_TYPE_UART) && (SERIAL_PORT_TYPE_UART > 0U))
        case kSerialPort_Uart:
            status = Serial_UartExitLowpower(((serial_handle_t)&handle->lowLevelhandleBuffer[0]));
            break;
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC) && (SERIAL_PORT_TYPE_USBCDC > 0U))
        case kSerialPort_UsbCdc:
            break;
#endif
#if (defined(SERIAL_PORT_TYPE_SWO) && (SERIAL_PORT_TYPE_SWO > 0U))
        case kSerialPort_Swo:
            break;
#endif
#if (defined(SERIAL_PORT_TYPE_USBCDC_VIRTUAL) && (SERIAL_PORT_TYPE_USBCDC_VIRTUAL > 0U))
        case kSerialPort_UsbCdcVirtual:
            break;
#endif
        default:
            /*MISRA rule 16.4*/
            break;
    }
    return status;
}