[参考译文] MSPM0G1107：MSPM0 SDK (2.02.00.05) SysConfig 支持 FreeRTOS/TI-Drivers

/*
 *  ======== UARTMSP_getRxData ========
 *  Must be called with HWI disabled.
 */
__STATIC_INLINE size_t UARTMSP_getRxData(UART_Handle handle, size_t size)
{
    UARTMSP_HWAttrs *hwAttrs           = UART_HWAttrs_Ptr(handle);
    UART_Object *uartObject            = UART_Obj_Ptr(handle);
    UART_Buffers_Object *buffersObject = UART_buffersObject(uartObject);

    size_t consumed = 0;
    uint8_t data;

    while (!(DL_UART_isRXFIFOEmpty(hwAttrs->regs)) && size)
    {
        data = DL_UART_receiveData(hwAttrs->regs);
        RingBuf_put(&buffersObject->rxBuf, data);
        ++consumed;
        --size;
    }
    return (consumed);
}