/************************************************************
Bulk EP OUT handle functions (clear rx fifo data, read them out and drop)
*************************************************************/
void USB_Acm_Rx_ClrFifo(void)
{
kal_uint32 nCount;
#ifdef USB_20_ENABLE
kal_uint32 max_bulk_pkt_size;
kal_uint8 data[USB_EP_BULK_MAXP_HS];
#else
kal_uint8 data[USB_EP_BULK_MAXP];
#endif
/* check if data received */
nCount = USB_EP_Rx_Pkt_Len(g_UsbACM.rxpipe->byEP);
#ifdef USB_20_ENABLE
if(USB_Is_High_Speed() == KAL_TRUE)
max_bulk_pkt_size = USB_EP_BULK_MAXP_HS;
else
max_bulk_pkt_size = USB_EP_BULK_MAXP_FS;
#ifdef __PRODUCTION_RELEASE__
if(nCount > max_bulk_pkt_size)
{
nCount = max_bulk_pkt_size;
}
#else
EXT_ASSERT((nCount <= max_bulk_pkt_size), nCount, max_bulk_pkt_size, 0);
#endif
#else /* USB_20_ENABLE */
#ifdef __PRODUCTION_RELEASE__
if(nCount > USB_EP_BULK_MAXP)
{
nCount = USB_EP_BULK_MAXP;
}
#else
EXT_ASSERT((nCount <= USB_EP_BULK_MAXP), nCount, USB_EP_BULK_MAXP, 0);
#endif
#endif /* USB_20_ENABLE */
if(nCount>0)
{
/* get the data from fifo */
USB_EPFIFORead(g_UsbACM.rxpipe->byEP, nCount, data);
/* Clear RxPktRdy */
USB_EP_Bulk_Rx_Ready(g_UsbACM.rxpipe->byEP);
}
}
/* parse EP0 requested command */
static void USB_Endpoint0_Idle (void)
{
/* read ep0 data*/
USB_EPFIFORead(0, 8, &gUsbDevice.cmd);
/* Check request type */
switch (gUsbDevice.cmd.bmRequestType & USB_CMD_TYPEMASK)
{
case USB_CMD_STDREQ:
/* standard request */
USB_Stdcmd(&gUsbDevice.ep0info, &gUsbDevice.cmd);
break;
case USB_CMD_CLASSREQ:
/* class specific request */
if((gUsbDevice.cmd.bmRequestType == USB_CMD_CLASSIFIN) || (gUsbDevice.cmd.bmRequestType == USB_CMD_CLASSIFOUT))
{
if(gUsbDevice.if_info[(gUsbDevice.cmd.wIndex & 0xff)].if_class_specific_hdlr != NULL)
{
gUsbDevice.if_info[(gUsbDevice.cmd.wIndex & 0xff)].if_class_specific_hdlr(&gUsbDevice.ep0info, &gUsbDevice.cmd);
}
else
{
/* error occur, stall endpoint*/
USB_Update_EP0_State(USB_EP0_DRV_STATE_READ_END, KAL_TRUE, KAL_FALSE);
}
}
else
{
/* error occur, stall endpoint*/
USB_Update_EP0_State(USB_EP0_DRV_STATE_READ_END, KAL_TRUE, KAL_FALSE);
}
break;
case USB_CMD_VENDREQ:
default:
/* Stall the command if a reserved request is received */
USB_Update_EP0_State(USB_EP0_DRV_STATE_READ_END, KAL_TRUE, KAL_FALSE);
break;
}
}
