/**
* @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;
}
}
