C++ USBx_HC函数代码示例

/**
  * @brief  Initiate Do Ping protocol
  * @param  USBx : Selected device
  * @param  hc_num : Host Channel number
  *         This parameter can be a value from 1 to 15
  * @retval HAL state
  */
HAL_StatusTypeDef USB_DoPing(USB_OTG_GlobalTypeDef *USBx , uint8_t ch_num)
{
  uint8_t  num_packets = 1;

  USBx_HC(ch_num)->HCTSIZ = ((num_packets << 19) & USB_OTG_HCTSIZ_PKTCNT) |\
                                USB_OTG_HCTSIZ_DOPING;
  
  /* Set host channel enable */
  USBx_HC(ch_num)->HCCHAR &= ~USB_OTG_HCCHAR_CHDIS;
  USBx_HC(ch_num)->HCCHAR |= USB_OTG_HCCHAR_CHENA;
  
  return HAL_OK;  
}

/**
  * @brief  Stop Host Core
  * @param  USBx : Selected device
  * @retval HAL state
  */
HAL_StatusTypeDef USB_StopHost(USB_OTG_GlobalTypeDef *USBx)
{
  uint8_t i;
  uint32_t count = 0;
  uint32_t value;
  
  USB_DisableGlobalInt(USBx);
  
    /* Flush FIFO */
  USB_FlushTxFifo(USBx, 0x10);
  USB_FlushRxFifo(USBx);
  
  /* Flush out any leftover queued requests. */
  for (i = 0; i <= 15; i++)
  {   

    value = USBx_HC(i)->HCCHAR ;
    value |=  USB_OTG_HCCHAR_CHDIS;
    value &= ~USB_OTG_HCCHAR_CHENA;  
    value &= ~USB_OTG_HCCHAR_EPDIR;
    USBx_HC(i)->HCCHAR = value;
  }
  
  /* Halt all channels to put them into a known state. */  
  for (i = 0; i <= 15; i++)
  {   

    value = USBx_HC(i)->HCCHAR ;
    
    value |= USB_OTG_HCCHAR_CHDIS;
    value |= USB_OTG_HCCHAR_CHENA;  
    value &= ~USB_OTG_HCCHAR_EPDIR;
    
    USBx_HC(i)->HCCHAR = value;
    do 
    {
      if (++count > 1000) 
      {
        break;
      }
    } 
    while ((USBx_HC(i)->HCCHAR & USB_OTG_HCCHAR_CHENA) == USB_OTG_HCCHAR_CHENA);
  }

  /* Clear any pending Host interrups */  
  USBx_HOST->HAINT = 0xFFFFFFFF;
  USBx->GINTSTS = 0xFFFFFFFF;
  USB_EnableGlobalInt(USBx);
  return HAL_OK;  
}

/**
  * @brief  This function handles Rx Queue Level interrupt requests.
  * @param  hhcd: HCD handle
  * @retval None
  */
static void HCD_RXQLVL_IRQHandler(HCD_HandleTypeDef *hhcd)
{
  USB_OTG_GlobalTypeDef *USBx = hhcd->Instance;  
  uint8_t  channelnum = 0;  
  uint32_t pktsts;
  uint32_t pktcnt; 
  uint32_t temp = 0;
  
  if (!HAL_HCD_ATTACHED(hhcd)) {
    USBH_PutMessage("RXQLVL Handler run after detached.");
  }

  temp = hhcd->Instance->GRXSTSP;
  channelnum = temp &  USB_OTG_GRXSTSP_EPNUM;  
  pktsts = (temp &  USB_OTG_GRXSTSP_PKTSTS) >> 17;
  pktcnt = (temp &  USB_OTG_GRXSTSP_BCNT) >> 4;
  
  switch (pktsts)
  {
  case GRXSTS_PKTSTS_IN:
    /* Read the data into the host buffer. */
    if ((pktcnt > 0) && (hhcd->hc[channelnum].xfer_buff != (void  *)0))
    {  
      
      USB_ReadPacket(hhcd->Instance, hhcd->hc[channelnum].xfer_buff, pktcnt);
      
      /*manage multiple Xfer */
      hhcd->hc[channelnum].xfer_buff += pktcnt;           
      hhcd->hc[channelnum].xfer_count  += pktcnt;
      
      if((USBx_HC(channelnum)->HCTSIZ & USB_OTG_HCTSIZ_PKTCNT) > 0)
      {
        /* re-activate the channel when more packets are expected */
        USBx_HC(channelnum)->HCCHAR &= ~USB_OTG_HCCHAR_CHDIS; 
        USBx_HC(channelnum)->HCCHAR |= USB_OTG_HCCHAR_CHENA;
        hhcd->hc[channelnum].toggle_in ^= 1;
      }
    }
    break;
    
  case GRXSTS_PKTSTS_DATA_TOGGLE_ERR:
    break;
  case GRXSTS_PKTSTS_IN_XFER_COMP:
  case GRXSTS_PKTSTS_CH_HALTED:
  default:
    break;
  }
}

/**
  * @brief  This function handles Rx Queue Level interrupt requests.
  * @param  hhcd: HCD handle
  * @retval none
  */
static void HCD_RXQLVL_IRQHandler  (HCD_HandleTypeDef *hhcd)
{
  USB_OTG_GlobalTypeDef *USBx = hhcd->Instance;
  uint8_t                       channelnum =0U;
  uint32_t                      pktsts;
  uint32_t                      pktcnt;
  uint32_t                      temp = 0U;
  uint32_t tmpreg = 0U;

  temp = hhcd->Instance->GRXSTSP;
  channelnum = temp &  USB_OTG_GRXSTSP_EPNUM;
  pktsts = (temp &  USB_OTG_GRXSTSP_PKTSTS) >> 17U;
  pktcnt = (temp &  USB_OTG_GRXSTSP_BCNT) >> 4U;

  switch (pktsts)
  {
  case GRXSTS_PKTSTS_IN:
    /* Read the data into the host buffer. */
    if ((pktcnt > 0U) && (hhcd->hc[channelnum].xfer_buff != (void  *)0U))
    {
      USB_ReadPacket(hhcd->Instance, hhcd->hc[channelnum].xfer_buff, pktcnt);

      /*manage multiple Xfer */
      hhcd->hc[channelnum].xfer_buff += pktcnt;
      hhcd->hc[channelnum].xfer_count  += pktcnt;

      if((USBx_HC(channelnum)->HCTSIZ & USB_OTG_HCTSIZ_PKTCNT) > 0U)
      {
        /* re-activate the channel when more packets are expected */
        tmpreg = USBx_HC(channelnum)->HCCHAR;
        tmpreg &= ~USB_OTG_HCCHAR_CHDIS;
        tmpreg |= USB_OTG_HCCHAR_CHENA;
        USBx_HC(channelnum)->HCCHAR = tmpreg;
        hhcd->hc[channelnum].toggle_in ^= 1U;
      }
    }
    break;

  case GRXSTS_PKTSTS_DATA_TOGGLE_ERR:
    break;

  case GRXSTS_PKTSTS_IN_XFER_COMP:
  case GRXSTS_PKTSTS_CH_HALTED:
  default:
    break;
  }
}

void hc_helper_report_channel_in(uint32_t i)
{
  if (hc_report_channel[i])
  {
    memset(&hcint[i], 0, sizeof(hcint[i]));
    hcint[i].interrupt = interrupt;
    hcint[i].hcint_reg = (USBx_HC(i)->HCINT);
    hcint[i].in_state = hhcd->hc[i].state;
    hcint[i].in_urbstate = hhcd->hc[i].urb_state;
    hcint[i].in_err_count = hhcd->hc[i].ErrCnt;
    hcint[i].uid = debug_hc_uid++;

    if ((USBx_HC(i)->HCCHAR) &  USB_OTG_HCCHAR_EPDIR)
    {
      hcint[i].direction = 1; // IN
    }
    else {
      hcint[i].direction = 0; // OUT
    }
  }
}

void hc_helper_prepare_reports(HCD_HandleTypeDef *_hhcd, uint32_t _interrupt)
{
  int i;
  hhcd = _hhcd;
  interrupt = _interrupt;
  USBx = hhcd->Instance;

  for (i = 0; i < hhcd->Init.Host_channels ; i++)
  {
    if (interrupt & (1 << i))
    {
      hc_report_channel[i] = (DebugConfig.channel_hcintx_mask[i] & (USBx_HC(i)->HCINT));
    }
    else {
      hc_report_channel[i] = 0;
    }
  }
}

/**
  * @brief  Halt a host channel
  * @param  USBx : Selected device
  * @param  hc_num : Host Channel number
  *         This parameter can be a value from 1 to 15
  * @retval HAL state
  */
HAL_StatusTypeDef USB_HC_Halt(USB_OTG_GlobalTypeDef *USBx , uint8_t hc_num)
{
  uint32_t count = 0;
  
  /* Check for space in the request queue to issue the halt. */
  if (((USBx_HC(hc_num)->HCCHAR) & (HCCHAR_CTRL << 18)) || ((USBx_HC(hc_num)->HCCHAR) & (HCCHAR_BULK << 18)))
  {
    USBx_HC(hc_num)->HCCHAR |= USB_OTG_HCCHAR_CHDIS;
    
    if ((USBx->HNPTXSTS & 0xFFFF) == 0)
    {
      USBx_HC(hc_num)->HCCHAR &= ~USB_OTG_HCCHAR_CHENA;
      USBx_HC(hc_num)->HCCHAR |= USB_OTG_HCCHAR_CHENA;  
      USBx_HC(hc_num)->HCCHAR &= ~USB_OTG_HCCHAR_EPDIR;
      do 
      {
        if (++count > 1000) 
        {
          break;
        }
      } 
      while ((USBx_HC(hc_num)->HCCHAR & USB_OTG_HCCHAR_CHENA) == USB_OTG_HCCHAR_CHENA);     
    }
    else
    {
      USBx_HC(hc_num)->HCCHAR |= USB_OTG_HCCHAR_CHENA; 
    }
  }
  else
  {
    USBx_HC(hc_num)->HCCHAR |= USB_OTG_HCCHAR_CHDIS;
    
    if ((USBx_HOST->HPTXSTS & 0xFFFF) == 0)
    {
      USBx_HC(hc_num)->HCCHAR &= ~USB_OTG_HCCHAR_CHENA;
      USBx_HC(hc_num)->HCCHAR |= USB_OTG_HCCHAR_CHENA;  
      USBx_HC(hc_num)->HCCHAR &= ~USB_OTG_HCCHAR_EPDIR;
      do 
      {
        if (++count > 1000) 
        {
          break;
        }
      } 
      while ((USBx_HC(hc_num)->HCCHAR & USB_OTG_HCCHAR_CHENA) == USB_OTG_HCCHAR_CHENA);     
    }
    else
    {
       USBx_HC(hc_num)->HCCHAR |= USB_OTG_HCCHAR_CHENA; 
    }
  }
  
  return HAL_OK;
}

/**
  * @brief  Start a transfer over a host channel
  * @param  USBx : Selected device
  * @param  hc : pointer to host channel structure
  * @param  dma: USB dma enabled or disabled 
  *          This parameter can be one of the these values:
  *           0 : DMA feature not used 
  *           1 : DMA feature used  
  * @retval HAL state
  */
#if defined   (__CC_ARM) /*!< ARM Compiler */
#pragma O0
#elif defined (__GNUC__) /*!< GNU Compiler */
#pragma GCC optimize ("O0")
#elif defined  (__TASKING__) /*!< TASKING Compiler */ 
#pragma optimize=0                          
#endif /* __CC_ARM */
HAL_StatusTypeDef USB_HC_StartXfer(USB_OTG_GlobalTypeDef *USBx, USB_OTG_HCTypeDef *hc, uint8_t dma)
{
  uint8_t  is_oddframe = 0; 
  uint16_t len_words = 0;   
  uint16_t num_packets = 0;
  uint16_t max_hc_pkt_count = 256;
  
  if((USBx != USB_OTG_FS) && (hc->speed == USB_OTG_SPEED_HIGH))
  {
    if((dma == 0) && (hc->do_ping == 1))
    {
      USB_DoPing(USBx, hc->ch_num);
      return HAL_OK;
    }
  }
  
  /* Compute the expected number of packets associated to the transfer */
  if (hc->xfer_len > 0)
  {
    num_packets = (hc->xfer_len + hc->max_packet - 1) / hc->max_packet;
    
    if (num_packets > max_hc_pkt_count)
    {
      num_packets = max_hc_pkt_count;
      hc->xfer_len = num_packets * hc->max_packet;
    }
  }
  else
  {
    num_packets = 1;
  }
  if (hc->ep_is_in)
  {
    hc->xfer_len = num_packets * hc->max_packet;
  }
  
  
  
  /* Initialize the HCTSIZn register */
  USBx_HC(hc->ch_num)->HCTSIZ = (((hc->xfer_len) & USB_OTG_HCTSIZ_XFRSIZ)) |\
                                ((num_packets << 19) & USB_OTG_HCTSIZ_PKTCNT) |\
                                (((hc->data_pid) << 29) & USB_OTG_HCTSIZ_DPID);
  
  if (dma)
  {
    /* xfer_buff MUST be 32-bits aligned */
    USBx_HC(hc->ch_num)->HCDMA = (uint32_t)hc->xfer_buff;
  }

  is_oddframe = (USBx_HOST->HFNUM & 0x01) ? 0 : 1;
  USBx_HC(hc->ch_num)->HCCHAR &= ~USB_OTG_HCCHAR_ODDFRM;
  USBx_HC(hc->ch_num)->HCCHAR |= (is_oddframe << 29);
  
  /* Set host channel enable */
  USBx_HC(hc->ch_num)->HCCHAR &= ~USB_OTG_HCCHAR_CHDIS;
  USBx_HC(hc->ch_num)->HCCHAR |= USB_OTG_HCCHAR_CHENA;

  if (dma == 0) /* Slave mode */
  {  
    if((hc->ep_is_in == 0) && (hc->xfer_len > 0))
    {
      switch(hc->ep_type) 
      {
        /* Non periodic transfer */
      case EP_TYPE_CTRL:
      case EP_TYPE_BULK:
        
        len_words = (hc->xfer_len + 3) / 4;
        
        /* check if there is enough space in FIFO space */
        if(len_words > (USBx->HNPTXSTS & 0xFFFF))
        {
          /* need to process data in nptxfempty interrupt */
          USBx->GINTMSK |= USB_OTG_GINTMSK_NPTXFEM;
        }
        break;
        /* Periodic transfer */
      case EP_TYPE_INTR:
      case EP_TYPE_ISOC:
        len_words = (hc->xfer_len + 3) / 4;
        /* check if there is enough space in FIFO space */
        if(len_words > (USBx_HOST->HPTXSTS & 0xFFFF)) /* split the transfer */
        {
//.........这里部分代码省略.........

/**
  * @brief  Initialize a host channel
  * @param  USBx : Selected device
  * @param  ch_num : Channel number
  *         This parameter can be a value from 1 to 15
  * @param  epnum : Endpoint number
  *          This parameter can be a value from 1 to 15
  * @param  dev_address : Current device address
  *          This parameter can be a value from 0 to 255
  * @param  speed : Current device speed
  *          This parameter can be one of the these values:
  *            @arg USB_OTG_SPEED_HIGH: High speed mode
  *            @arg USB_OTG_SPEED_FULL: Full speed mode
  *            @arg USB_OTG_SPEED_LOW: Low speed mode
  * @param  ep_type : Endpoint Type
  *          This parameter can be one of the these values:
  *            @arg EP_TYPE_CTRL: Control type
  *            @arg EP_TYPE_ISOC: Isochrounous type
  *            @arg EP_TYPE_BULK: Bulk type
  *            @arg EP_TYPE_INTR: Interrupt type
  * @param  mps : Max Packet Size
  *          This parameter can be a value from 0 to32K
  * @retval HAL state
  */
HAL_StatusTypeDef USB_HC_Init(USB_OTG_GlobalTypeDef *USBx,  
                              uint8_t ch_num,
                              uint8_t epnum,
                              uint8_t dev_address,
                              uint8_t speed,
                              uint8_t ep_type,
                              uint16_t mps)
{
    
  /* Clear old interrupt conditions for this host channel. */
  USBx_HC(ch_num)->HCINT = 0xFFFFFFFF;
  
  /* Enable channel interrupts required for this transfer. */
  switch (ep_type) 
  {
  case EP_TYPE_CTRL:
  case EP_TYPE_BULK:
    
    USBx_HC(ch_num)->HCINTMSK = USB_OTG_HCINTMSK_XFRCM  |\
                                USB_OTG_HCINTMSK_STALLM |\
                                USB_OTG_HCINTMSK_TXERRM |\
                                USB_OTG_HCINTMSK_DTERRM |\
                                USB_OTG_HCINTMSK_AHBERR |\
                                USB_OTG_HCINTMSK_NAKM ;
 
    if (epnum & 0x80) 
    {
      USBx_HC(ch_num)->HCINTMSK |= USB_OTG_HCINTMSK_BBERRM;
    } 
    else 
    {
      if(USBx != USB_OTG_FS)
      {
        USBx_HC(ch_num)->HCINTMSK |= (USB_OTG_HCINTMSK_NYET | USB_OTG_HCINTMSK_ACKM);
      }
    }
    break;
  case EP_TYPE_INTR:
    
    USBx_HC(ch_num)->HCINTMSK = USB_OTG_HCINTMSK_XFRCM  |\
                                USB_OTG_HCINTMSK_STALLM |\
                                USB_OTG_HCINTMSK_TXERRM |\
                                USB_OTG_HCINTMSK_DTERRM |\
                                USB_OTG_HCINTMSK_NAKM   |\
                                USB_OTG_HCINTMSK_AHBERR |\
                                USB_OTG_HCINTMSK_FRMORM ;    
    
    if (epnum & 0x80) 
    {
      USBx_HC(ch_num)->HCINTMSK |= USB_OTG_HCINTMSK_BBERRM;
    }
    
    break;
  case EP_TYPE_ISOC:
    
    USBx_HC(ch_num)->HCINTMSK = USB_OTG_HCINTMSK_XFRCM  |\
                                USB_OTG_HCINTMSK_ACKM   |\
                                USB_OTG_HCINTMSK_AHBERR |\
                                USB_OTG_HCINTMSK_FRMORM ;   
    
    if (epnum & 0x80) 
    {
      USBx_HC(ch_num)->HCINTMSK |= (USB_OTG_HCINTMSK_TXERRM | USB_OTG_HCINTMSK_BBERRM);      
    }
    break;
  }
  
  /* Enable the top level host channel interrupt. */
  USBx_HOST->HAINTMSK |= (1 << ch_num);
  
  /* Make sure host channel interrupts are enabled. */
  USBx->GINTMSK |= USB_OTG_GINTMSK_HCIM;
  
  /* Program the HCCHAR register */
  USBx_HC(ch_num)->HCCHAR = (((dev_address << 22) & USB_OTG_HCCHAR_DAD)  |\
                             (((epnum & 0x7F)<< 11) & USB_OTG_HCCHAR_EPNUM)|\
//.........这里部分代码省略.........

/**
  * @brief  USB_HostInit : Initializes the USB OTG controller registers 
  *         for Host mode 
  * @param  USBx : Selected device
  * @param  cfg  : pointer to a USB_OTG_CfgTypeDef structure that contains
  *         the configuration information for the specified USBx peripheral.
  * @retval HAL status
  */
HAL_StatusTypeDef USB_HostInit (USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef cfg)
{
  uint32_t i;
  
  /* Restart the Phy Clock */
  USBx_PCGCCTL = 0;
  
  /* no VBUS sensing*/
  USBx->GCCFG &=~ (USB_OTG_GCCFG_VBUSASEN);
  USBx->GCCFG &=~ (USB_OTG_GCCFG_VBUSBSEN);
  USBx->GCCFG |= USB_OTG_GCCFG_NOVBUSSENS;
  
  /* Disable the FS/LS support mode only */
  if((cfg.speed == USB_OTG_SPEED_FULL)&&
     (USBx != USB_OTG_FS))
  {
    USBx_HOST->HCFG |= USB_OTG_HCFG_FSLSS; 
  }
  else
  {
    USBx_HOST->HCFG &= ~(USB_OTG_HCFG_FSLSS);  
  }

  /* Make sure the FIFOs are flushed. */
  USB_FlushTxFifo(USBx, 0x10 ); /* all Tx FIFOs */
  USB_FlushRxFifo(USBx);

  /* Clear all pending HC Interrupts */
  for (i = 0; i < cfg.Host_channels; i++)
  {
    USBx_HC(i)->HCINT = 0xFFFFFFFF;
    USBx_HC(i)->HCINTMSK = 0;
  }
  
  /* Enable VBUS driving */
  USB_DriveVbus(USBx, 1);
  
  HAL_Delay(200);
  
  /* Disable all interrupts. */
  USBx->GINTMSK = 0;
  
  /* Clear any pending interrupts */
  USBx->GINTSTS = 0xFFFFFFFF;

  
  if(USBx == USB_OTG_FS)
  {
    /* set Rx FIFO size */
    USBx->GRXFSIZ  = (uint32_t )0x80; 
    USBx->DIEPTXF0_HNPTXFSIZ = (uint32_t )(((0x60 << 16)& USB_OTG_NPTXFD) | 0x80);
    USBx->HPTXFSIZ = (uint32_t )(((0x40 << 16)& USB_OTG_HPTXFSIZ_PTXFD) | 0xE0);

  }

  else
  {
    /* set Rx FIFO size */
    USBx->GRXFSIZ  = (uint32_t )0x200; 
    USBx->DIEPTXF0_HNPTXFSIZ = (uint32_t )(((0x100 << 16)& USB_OTG_NPTXFD) | 0x200);
    USBx->HPTXFSIZ = (uint32_t )(((0xE0 << 16)& USB_OTG_HPTXFSIZ_PTXFD) | 0x300);
  }
  
  /* Enable the common interrupts */
  if (cfg.dma_enable == DISABLE)
  {
    USBx->GINTMSK |= USB_OTG_GINTMSK_RXFLVLM; 
  }
  
  /* Enable interrupts matching to the Host mode ONLY */
  USBx->GINTMSK |= (USB_OTG_GINTMSK_PRTIM            | USB_OTG_GINTMSK_HCIM |\
                    USB_OTG_GINTMSK_SOFM             |USB_OTG_GINTSTS_DISCINT|\
                    USB_OTG_GINTMSK_PXFRM_IISOOXFRM  | USB_OTG_GINTMSK_WUIM);

  return HAL_OK;
}

/**
  * @brief  This function handles Host Channel OUT interrupt requests.
  * @param  hhcd: HCD handle
  * @param  chnum : Channel number
  *         This parameter can be a value from 1 to 15
  * @retval none
  */
static void HCD_HC_OUT_IRQHandler  (HCD_HandleTypeDef *hhcd, uint8_t chnum)
{
  USB_OTG_GlobalTypeDef *USBx = hhcd->Instance;
  
  if ((USBx_HC(chnum)->HCINT) &  USB_OTG_HCINT_AHBERR)
  {
    __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_AHBERR);
    __HAL_HCD_UNMASK_HALT_HC_INT(chnum);
  }  
  else if ((USBx_HC(chnum)->HCINT) &  USB_OTG_HCINT_ACK)
  {
    __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_ACK);
    
    if( hhcd->hc[chnum].do_ping == 1)
    {
      hhcd->hc[chnum].state = HC_NYET;     
      __HAL_HCD_UNMASK_HALT_HC_INT(chnum); 
      USB_HC_Halt(hhcd->Instance, chnum); 
      hhcd->hc[chnum].urb_state  = URB_NOTREADY;
    }
  }
  
  else if ((USBx_HC(chnum)->HCINT) &  USB_OTG_HCINT_NYET)
  {
    hhcd->hc[chnum].state = HC_NYET;
    hhcd->hc[chnum].ErrCnt= 0;    
    __HAL_HCD_UNMASK_HALT_HC_INT(chnum); 
    USB_HC_Halt(hhcd->Instance, chnum);      
    __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NYET);
    
  }  
  
  else if ((USBx_HC(chnum)->HCINT) &  USB_OTG_HCINT_FRMOR)
  {
    __HAL_HCD_UNMASK_HALT_HC_INT(chnum); 
    USB_HC_Halt(hhcd->Instance, chnum);  
    __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_FRMOR);
  }
  
  else if ((USBx_HC(chnum)->HCINT) &  USB_OTG_HCINT_XFRC)
  {
      hhcd->hc[chnum].ErrCnt = 0;  
    __HAL_HCD_UNMASK_HALT_HC_INT(chnum);
    USB_HC_Halt(hhcd->Instance, chnum);   
    __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_XFRC);
    hhcd->hc[chnum].state = HC_XFRC;

  }  

  else if ((USBx_HC(chnum)->HCINT) &  USB_OTG_HCINT_STALL)  
  {
    __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_STALL);  
    __HAL_HCD_UNMASK_HALT_HC_INT(chnum);
    USB_HC_Halt(hhcd->Instance, chnum);   
    hhcd->hc[chnum].state = HC_STALL;    
  }

  else if ((USBx_HC(chnum)->HCINT) &  USB_OTG_HCINT_NAK)
  {  
    hhcd->hc[chnum].ErrCnt = 0;  
    __HAL_HCD_UNMASK_HALT_HC_INT(chnum); 
    USB_HC_Halt(hhcd->Instance, chnum);   
    hhcd->hc[chnum].state = HC_NAK;
    __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NAK);
  }

  else if ((USBx_HC(chnum)->HCINT) &  USB_OTG_HCINT_TXERR)
  {
    __HAL_HCD_UNMASK_HALT_HC_INT(chnum); 
    USB_HC_Halt(hhcd->Instance, chnum);      
    hhcd->hc[chnum].state = HC_XACTERR;  
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_TXERR);
  }
  
  else if ((USBx_HC(chnum)->HCINT) &  USB_OTG_HCINT_DTERR)
  {
    __HAL_HCD_UNMASK_HALT_HC_INT(chnum); 
    USB_HC_Halt(hhcd->Instance, chnum);      
    __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NAK);
    __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_DTERR);    
    hhcd->hc[chnum].state = HC_DATATGLERR;
  }
  
  
  else if ((USBx_HC(chnum)->HCINT) &  USB_OTG_HCINT_CHH)
  {
    __HAL_HCD_MASK_HALT_HC_INT(chnum); 
    
    if(hhcd->hc[chnum].state == HC_XFRC)
    {
      hhcd->hc[chnum].urb_state  = URB_DONE;
      if (hhcd->hc[chnum].ep_type == EP_TYPE_BULK)
      {
//.........这里部分代码省略.........

/**
  * @brief  This function handles Host Channel IN interrupt requests.
  * @param  hhcd: HCD handle
  * @param  chnum : Channel number
  *         This parameter can be a value from 1 to 15
  * @retval none
  */
static void HCD_HC_IN_IRQHandler   (HCD_HandleTypeDef *hhcd, uint8_t chnum)
{
  USB_OTG_GlobalTypeDef *USBx = hhcd->Instance;
    
  if ((USBx_HC(chnum)->HCINT) &  USB_OTG_HCINT_AHBERR)
  {
    __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_AHBERR);
    __HAL_HCD_UNMASK_HALT_HC_INT(chnum);
  }  
  else if ((USBx_HC(chnum)->HCINT) &  USB_OTG_HCINT_ACK)
  {
    __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_ACK);
  }
  
  else if ((USBx_HC(chnum)->HCINT) &  USB_OTG_HCINT_STALL)  
  {
    __HAL_HCD_UNMASK_HALT_HC_INT(chnum);
    hhcd->hc[chnum].state = HC_STALL;
    __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NAK);
    __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_STALL);    
    USB_HC_Halt(hhcd->Instance, chnum);    
  }
  else if ((USBx_HC(chnum)->HCINT) &  USB_OTG_HCINT_DTERR)
  {
    __HAL_HCD_UNMASK_HALT_HC_INT(chnum);
    USB_HC_Halt(hhcd->Instance, chnum);  
    __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NAK);    
    hhcd->hc[chnum].state = HC_DATATGLERR;
    __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_DTERR);
  }    
  
  if ((USBx_HC(chnum)->HCINT) &  USB_OTG_HCINT_FRMOR)
  {
    __HAL_HCD_UNMASK_HALT_HC_INT(chnum); 
    USB_HC_Halt(hhcd->Instance, chnum);  
    __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_FRMOR);
  }
  
  else if ((USBx_HC(chnum)->HCINT) &  USB_OTG_HCINT_XFRC)
  {
    
    if (hhcd->Init.dma_enable)
    {
      hhcd->hc[chnum].xfer_count = hhcd->hc[chnum].xfer_len - \
                               (USBx_HC(chnum)->HCTSIZ & USB_OTG_HCTSIZ_XFRSIZ);
    }
    
    hhcd->hc[chnum].state = HC_XFRC;
    hhcd->hc[chnum].ErrCnt = 0;
    __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_XFRC);
    
    
    if ((hhcd->hc[chnum].ep_type == EP_TYPE_CTRL)||
        (hhcd->hc[chnum].ep_type == EP_TYPE_BULK))
    {
      __HAL_HCD_UNMASK_HALT_HC_INT(chnum); 
      USB_HC_Halt(hhcd->Instance, chnum); 
      __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NAK);
      
    }
    else if(hhcd->hc[chnum].ep_type == EP_TYPE_INTR)
    {
      USBx_HC(chnum)->HCCHAR |= USB_OTG_HCCHAR_ODDFRM;
      hhcd->hc[chnum].urb_state = URB_DONE; 
      HAL_HCD_HC_NotifyURBChange_Callback(hhcd, chnum, hhcd->hc[chnum].urb_state);
    }
    hhcd->hc[chnum].toggle_in ^= 1;
    
  }
  else if ((USBx_HC(chnum)->HCINT) &  USB_OTG_HCINT_CHH)
  {
    __HAL_HCD_MASK_HALT_HC_INT(chnum); 
    
    if(hhcd->hc[chnum].state == HC_XFRC)
    {
      hhcd->hc[chnum].urb_state  = URB_DONE;      
    }
    
    else if (hhcd->hc[chnum].state == HC_STALL) 
    {
      hhcd->hc[chnum].urb_state  = URB_STALL;
    }   
    
    else if((hhcd->hc[chnum].state == HC_XACTERR) ||
            (hhcd->hc[chnum].state == HC_DATATGLERR))
    {
      if(hhcd->hc[chnum].ErrCnt++ > 3)
      {      
        hhcd->hc[chnum].ErrCnt = 0;
        hhcd->hc[chnum].urb_state = URB_ERROR;
      }
      else
      {
//.........这里部分代码省略.........

/**
  * @brief  This function handles HCD interrupt request.
  * @param  hhcd: HCD handle
  * @retval none
  */
void HAL_HCD_IRQHandler(HCD_HandleTypeDef *hhcd)
{
  USB_OTG_GlobalTypeDef *USBx = hhcd->Instance;
  uint32_t i = 0 , interrupt = 0;
  
  /* ensure that we are in device mode */
  if (USB_GetMode(hhcd->Instance) == USB_OTG_MODE_HOST)
  {
    /* avoid spurious interrupt */
    if(__HAL_HCD_IS_INVALID_INTERRUPT(hhcd)) 
    {
      return;
    }
    
    if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT))
    {
     /* incorrect mode, acknowledge the interrupt */
      __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT);
    }
    
    if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_IISOIXFR))
    {
     /* incorrect mode, acknowledge the interrupt */
      __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_IISOIXFR);
    }

    if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_PTXFE))
    {
     /* incorrect mode, acknowledge the interrupt */
      __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_PTXFE);
    }   
    
    if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_MMIS))
    {
     /* incorrect mode, acknowledge the interrupt */
      __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_MMIS);
    }     
    
    /* Handle Host Disconnect Interrupts */
    if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_DISCINT))
    {
      
      /* Cleanup HPRT */
      USBx_HPRT0 &= ~(USB_OTG_HPRT_PENA | USB_OTG_HPRT_PCDET |\
        USB_OTG_HPRT_PENCHNG | USB_OTG_HPRT_POCCHNG );
       
      /* Handle Host Port Interrupts */
      HAL_HCD_Disconnect_Callback(hhcd);
       USB_InitFSLSPClkSel(hhcd->Instance ,HCFG_48_MHZ );
      __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_DISCINT);
    }
    
    /* Handle Host Port Interrupts */
    if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_HPRTINT))
    {
      HCD_Port_IRQHandler (hhcd);
    }
    
    /* Handle Host SOF Interrupts */
    if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_SOF))
    {
      HAL_HCD_SOF_Callback(hhcd);
      __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_SOF);
    }
          
    /* Handle Host channel Interrupts */
    if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_HCINT))
    {
      
      interrupt = USB_HC_ReadInterrupt(hhcd->Instance);
      for (i = 0; i < hhcd->Init.Host_channels ; i++)
      {
        if (interrupt & (1 << i))
        {
          if ((USBx_HC(i)->HCCHAR) &  USB_OTG_HCCHAR_EPDIR)
          {
            HCD_HC_IN_IRQHandler (hhcd, i);
          }
          else
          {
            HCD_HC_OUT_IRQHandler (hhcd, i);
          }
        }
      }
      __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_HCINT);
    } 
    
        /* Handle Rx Queue Level Interrupts */
    if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_RXFLVL))
    {
      USB_MASK_INTERRUPT(hhcd->Instance, USB_OTG_GINTSTS_RXFLVL);
      
      HCD_RXQLVL_IRQHandler (hhcd);
      
      USB_UNMASK_INTERRUPT(hhcd->Instance, USB_OTG_GINTSTS_RXFLVL);
//.........这里部分代码省略.........

/**
  * @brief  This function handles HCD interrupt request.
  * @param  hhcd: HCD handle
  * @retval None
  */
void HAL_HCD_IRQHandler(HCD_HandleTypeDef *hhcd)
{
  USB_OTG_GlobalTypeDef *USBx = hhcd->Instance;
  uint32_t i = 0 , interrupt = 0;
  
  /* Ensure that we are in device mode */
  if (USB_GetMode(hhcd->Instance) == USB_OTG_MODE_HOST)
  {
    /* Avoid spurious interrupt */
    if(__HAL_HCD_IS_INVALID_INTERRUPT(hhcd)) 
    {
      return;
    }
    
    if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT))
    {
      /* Incorrect mode, acknowledge the interrupt */
      __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT);
    }
    
    if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_IISOIXFR))
    {
      /* Incorrect mode, acknowledge the interrupt */
      __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_IISOIXFR);
    }
    
    if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_PTXFE))
    {
      /* Incorrect mode, acknowledge the interrupt */
      __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_PTXFE);
    }   
    
    if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_MMIS))
    {
      /* Incorrect mode, acknowledge the interrupt */
      __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_MMIS);
    }     
    
    /* Handle Host Disconnect Interrupts */
    if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_DISCINT))
    {
      if (DebugConfig.print_hcd_event) {
        USBH_PutMessage("DISCONNECT");
      }
      
      /* Cleanup HPRT */
      USBx_HPRT0 &= ~(USB_OTG_HPRT_PENA | USB_OTG_HPRT_PCDET |\
        USB_OTG_HPRT_PENCHNG | USB_OTG_HPRT_POCCHNG );
      
      /* Handle Host Port Interrupts */
      /* Do this in port down handler, not disconnect handler */
      // HAL_HCD_Disconnect_Callback(hhcd);
      // USB_InitFSLSPClkSel(hhcd->Instance ,HCFG_48_MHZ );

      __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_DISCINT);
    }
    
    /* Handle Host Port Interrupts */
    if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_HPRTINT))
    {
      HCD_Port_IRQHandler (hhcd);

      /* If port down/global interrupt disabled, channel
       * process should not be processed further.
       */
      if (!(hhcd->Instance->GAHBCFG & USB_OTG_GAHBCFG_GINT))
        return;
    }
    
    /* Handle Host SOF Interrupts */
    if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_SOF))
    {
      HAL_HCD_SOF_Callback(hhcd);
      __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_SOF);
    }
    
    /* Handle Host channel Interrupts */
    if(__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_HCINT))
    {
      interrupt = USB_HC_ReadInterrupt(hhcd->Instance);

      hc_helper_prepare_reports(hhcd, interrupt);

      for (i = 0; i < hhcd->Init.Host_channels; i++)
      {
        if (interrupt & (1 << i))
        {
          hc_helper_report_channel_in(i);

          if ((USBx_HC(i)->HCCHAR) &  USB_OTG_HCCHAR_EPDIR)
          {
            HCD_HC_IN_IRQHandler(hhcd, i);
          }
          else
          {
//.........这里部分代码省略.........

/**                                
  * @brief  Submit a new URB for processing. 
  * @param  hhcd: HCD handle
  * @param  ch_num: Channel number.
  *         This parameter can be a value from 1 to 15
  * @param  direction: Channel number.
  *          This parameter can be one of these values:
  *           0 : Output / 1 : Input
  * @param  ep_type: Endpoint Type.
  *          This parameter can be one of these values:
  *            EP_TYPE_CTRL: Control type/
  *            EP_TYPE_ISOC: Isochronous type/
  *            EP_TYPE_BULK: Bulk type/
  *            EP_TYPE_INTR: Interrupt type/
  * @param  token: Endpoint Type.
  *          This parameter can be one of these values:
  *            0: HC_PID_SETUP / 1: HC_PID_DATA1
  * @param  pbuff: pointer to URB data
  * @param  length: Length of URB data
  * @param  do_ping: activate do ping protocol (for high speed only).
  *          This parameter can be one of these values:
  *           0 : do ping inactive / 1 : do ping active 
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_HCD_HC_SubmitRequest(HCD_HandleTypeDef *hhcd,
                                            uint8_t ch_num, 
                                            uint8_t direction ,
                                            uint8_t ep_type,  
                                            uint8_t token, 
                                            uint8_t* pbuff, 
                                            uint16_t length,
                                            uint8_t do_ping) 
{
  if ((hhcd->hc[ch_num].ep_is_in != direction)) {
    if ((hhcd->hc[ch_num].ep_type == EP_TYPE_CTRL)){
      /*  reconfigure the endpoint !!! from tx -> rx, and rx ->tx  */
      USB_OTG_GlobalTypeDef *USBx = hhcd->Instance;
      if (direction)
      {
        USBx_HC(ch_num)->HCINTMSK |= USB_OTG_HCINTMSK_BBERRM;
        USBx_HC(ch_num)->HCCHAR |= 1 << 15;
      }
      else
      {
        USBx_HC(ch_num)->HCINTMSK &= ~USB_OTG_HCINTMSK_BBERRM;
        USBx_HC(ch_num)->HCCHAR &= ~(1 << 15);
      }
      hhcd->hc[ch_num].ep_is_in = direction;
      /*  if reception put toggle_in to 1  */
      if (direction == 1) hhcd->hc[ch_num].toggle_in=1;
    }
  }
  hhcd->hc[ch_num].ep_type  = ep_type;

  if(token == 0)
  {
    hhcd->hc[ch_num].data_pid = HC_PID_SETUP;
  }
  else
  {
    hhcd->hc[ch_num].data_pid = HC_PID_DATA1;
  }

  /* Manage Data Toggle */
  switch(ep_type)
  {
  case EP_TYPE_CTRL:
    if((token == 1) && (direction == 0)) /*send data */
    {
      if ( length == 0 )
      { /* For Status OUT stage, Length==0, Status Out PID = 1 */
        hhcd->hc[ch_num].toggle_out = 1;
      }

      /* Set the Data Toggle bit as per the Flag */
      if ( hhcd->hc[ch_num].toggle_out == 0)
      { /* Put the PID 0 */
        hhcd->hc[ch_num].data_pid = HC_PID_DATA0;    
      }
      else
      { /* Put the PID 1 */
        hhcd->hc[ch_num].data_pid = HC_PID_DATA1 ;
      }
      if(hhcd->hc[ch_num].urb_state  != URB_NOTREADY)
      {
        hhcd->hc[ch_num].do_ping = do_ping;
      }
    }
    else if ((token == 1) && (direction == 1))
    {
      if( hhcd->hc[ch_num].toggle_in == 0)
      {
        hhcd->hc[ch_num].data_pid = HC_PID_DATA0;
      }
      else
      {
        hhcd->hc[ch_num].data_pid = HC_PID_DATA1;
      }

    }
//.........这里部分代码省略.........