/******************************************************************************
* Function: void USBCtrlEPService(void)
*
* PreCondition: USTAT is loaded with a valid endpoint address.
*
* Input: None
*
* Output: None
*
* Side Effects: None
*
* Overview: USBCtrlEPService checks for three transaction types that
* it knows how to service and services them:
* 1. EP0 SETUP
* 2. EP0 OUT
* 3. EP0 IN
* It ignores all other types (i.e. EP1, EP2, etc.)
*
* Note: None
*****************************************************************************/
void USBCtrlEPService(void)
{
if(USTAT == EP00_OUT)
{
if(ep0Bo.Stat.PID == SETUP_TOKEN) // EP0 SETUP
USBCtrlTrfSetupHandler();
else // EP0 OUT
USBCtrlTrfOutHandler();
}
else if(USTAT == EP00_IN) // EP0 IN
USBCtrlTrfInHandler();
}//end USBCtrlEPService
/********************************************************************
Bug Fix: May 14, 2007
********************************************************************/
byte USBCtrlEPService(void)
{
if(USTAT == EP00_OUT)
{
UIRbits.TRNIF = 0;
//If the current EP0 OUT buffer has a SETUP packet
if(ep0Bo.Stat.PID == SETUP_TOKEN)
{
//Check if the SETUP transaction data went into the CtrlTrfData buffer.
//If so, need to copy it to the SetupPkt buffer so that it can be
//processed correctly by USBCtrlTrfSetupHandler().
if(ep0Bo.ADR == (byte*)(&CtrlTrfData))
{
unsigned char setup_cnt;
ep0Bo.ADR = (byte*)(&SetupPkt);
for(setup_cnt = 0; setup_cnt < sizeof(CTRL_TRF_SETUP); setup_cnt++)
{
*(((byte*)&SetupPkt)+setup_cnt) = *(((byte*)&CtrlTrfData)+setup_cnt);
}//end for
}
//Handle the control transfer (parse the 8-byte SETUP command and figure out what to do)
USBCtrlTrfSetupHandler();
}
else
{
//Handle the DATA transfer
USBCtrlTrfOutHandler();
}
}
else if(USTAT == EP00_IN) // EP0 IN
{
UIRbits.TRNIF = 0;
USBCtrlTrfInHandler();
}
else
{
return 0; // Return '0', if not an EP0 transaction
}
return 1; // Return '1', if TRNIF has been cleared
}//end USBCtrlEPService
/********************************************************************
Bug Fix: May 14, 2007
********************************************************************/
byte USBCtrlEPService(void)
{
if(USTAT == EP00_OUT)
{
UIRbits.TRNIF = 0;
if(ep0Bo.Stat.PID == SETUP_TOKEN) // EP0 SETUP
USBCtrlTrfSetupHandler();
else // EP0 OUT
USBCtrlTrfOutHandler();
}
else if(USTAT == EP00_IN) // EP0 IN
{
UIRbits.TRNIF = 0;
USBCtrlTrfInHandler();
}
else
{
return 0; // Return '0', if not an EP0 transaction
}
return 1; // Return '1', if TRNIF has been cleared
}//end USBCtrlEPService
/******************************************************************************
* Function: void USBCtrlEPService(void)
*
* PreCondition: USTAT is loaded with a valid endpoint address.
*
* Input: None
*
* Output: None
*
* Side Effects: None
*
* Overview: USBCtrlEPService checks for three transaction types that
* it knows how to service and services them:
* 1. EP0 SETUP
* 2. EP0 OUT
* 3. EP0 IN
* It ignores all other types (i.e. EP1, EP2, etc.)
*
* Note: None
*****************************************************************************/
void USBCtrlEPService(void)
{
if(USTAT == EP00_OUT)
{
//If the current EP0 OUT buffer has a SETUP packet
if(ep0Bo.Stat.PID == SETUP_TOKEN)
{
ep0Bi.Stat.UOWN = 0; //Clear the UOWN bit for EP0 IN, in case it was set (ex: due to a stall)
//Check if the SETUP transaction data went into the CtrlTrfData buffer.
//If so, need to copy it to the SetupPkt buffer so that it can be
//processed correctly by USBCtrlTrfSetupHandler().
if(ep0Bo.ADR == (byte*)(&CtrlTrfData))
{
unsigned char setup_cnt;
ep0Bo.ADR = (byte*)(&SetupPkt);
for(setup_cnt = 0; setup_cnt < sizeof(CTRL_TRF_SETUP); setup_cnt++)
{
*(((byte*)&SetupPkt)+setup_cnt) = *(((byte*)&CtrlTrfData)+setup_cnt);
}//end for
}
//Handle the control transfer (parse the 8-byte SETUP command and figure out what to do)
USBCtrlTrfSetupHandler();
}
else
{
//Handle the DATA transfer
USBCtrlTrfOutHandler();
}
}
else if(USTAT == EP00_IN) // EP0 IN
USBCtrlTrfInHandler();
}//end USBCtrlEPService
