/*******************************************************************************
* Function Name: USBFS_1_DispatchCDCClassRqst
********************************************************************************
*
* Summary:
* This routine dispatches CDC class requests.
*
* Parameters:
* None.
*
* Return:
* requestHandled
*
* Global variables:
* USBFS_1_lineCoding: Contains the current line coding structure.
* It is set by the Host using SET_LINE_CODING request and returned to the
* user code by the USBFS_GetDTERate(), USBFS_GetCharFormat(),
* USBFS_GetParityType(), USBFS_GetDataBits() APIs.
* USBFS_1_lineControlBitmap: Contains the current control signal
* bitmap. It is set by the Host using SET_CONTROL_LINE request and returned
* to the user code by the USBFS_GetLineControl() API.
* USBFS_1_lineChanged: This variable is used as a flag for the
* USBFS_IsLineChanged() API, to be aware that Host has been sent request
* for changing Line Coding or Control Bitmap.
*
* Reentrant:
* No.
*
*******************************************************************************/
uint8 USBFS_1_DispatchCDCClassRqst()
{
uint8 requestHandled = USBFS_1_FALSE;
if ((CY_GET_REG8(USBFS_1_bmRequestType) & USBFS_1_RQST_DIR_MASK) == USBFS_1_RQST_DIR_D2H)
{ /* Control Read */
switch (CY_GET_REG8(USBFS_1_bRequest))
{
case USBFS_1_CDC_GET_LINE_CODING:
USBFS_1_currentTD.count = USBFS_1_LINE_CODING_SIZE;
USBFS_1_currentTD.pData = USBFS_1_lineCoding;
requestHandled = USBFS_1_InitControlRead();
break;
/* `#START CDC_READ_REQUESTS` Place other request handler here */
/* `#END` */
default: /* requestHandled is initialezed as FALSE by default */
break;
}
}
else if ((CY_GET_REG8(USBFS_1_bmRequestType) & USBFS_1_RQST_DIR_MASK) == \
USBFS_1_RQST_DIR_H2D)
{ /* Control Write */
switch (CY_GET_REG8(USBFS_1_bRequest))
{
case USBFS_1_CDC_SET_LINE_CODING:
USBFS_1_currentTD.count = USBFS_1_LINE_CODING_SIZE;
USBFS_1_currentTD.pData = USBFS_1_lineCoding;
USBFS_1_lineChanged |= USBFS_1_LINE_CODING_CHANGED;
requestHandled = USBFS_1_InitControlWrite();
break;
case USBFS_1_CDC_SET_CONTROL_LINE_STATE:
USBFS_1_lineControlBitmap = CY_GET_REG8(USBFS_1_wValueLo);
USBFS_1_lineChanged |= USBFS_1_LINE_CONTROL_CHANGED;
requestHandled = USBFS_1_InitNoDataControlTransfer();
break;
/* `#START CDC_WRITE_REQUESTS` Place other request handler here */
/* `#END` */
default: /* requestHandled is initialezed as FALSE by default */
break;
}
}
else
{ /* requestHandled is initialezed as FALSE by default */
}
return(requestHandled);
}
/*******************************************************************************
* Function Name: USBFS_1_DispatchHIDClassRqst
********************************************************************************
*
* Summary:
* This routine dispatches class requests
*
* Parameters:
* None.
*
* Return:
* requestHandled
*
* Reentrant:
* No.
*
*******************************************************************************/
uint8 USBFS_1_DispatchHIDClassRqst(void)
{
uint8 requestHandled = USBFS_1_FALSE;
uint8 interfaceNumber;
interfaceNumber = CY_GET_REG8(USBFS_1_wIndexLo);
if ((CY_GET_REG8(USBFS_1_bmRequestType) & USBFS_1_RQST_DIR_MASK) == USBFS_1_RQST_DIR_D2H)
{ /* Control Read */
switch (CY_GET_REG8(USBFS_1_bRequest))
{
case USBFS_1_GET_DESCRIPTOR:
if (CY_GET_REG8(USBFS_1_wValueHi) == USBFS_1_DESCR_HID_CLASS)
{
USBFS_1_FindHidClassDecriptor();
if (USBFS_1_currentTD.count != 0u)
{
requestHandled = USBFS_1_InitControlRead();
}
}
else if (CY_GET_REG8(USBFS_1_wValueHi) == USBFS_1_DESCR_HID_REPORT)
{
USBFS_1_FindReportDescriptor();
if (USBFS_1_currentTD.count != 0u)
{
requestHandled = USBFS_1_InitControlRead();
}
}
else
{ /* requestHandled is initialezed as FALSE by default */
}
break;
case USBFS_1_HID_GET_REPORT:
USBFS_1_FindReport();
if (USBFS_1_currentTD.count != 0u)
{
requestHandled = USBFS_1_InitControlRead();
}
break;
case USBFS_1_HID_GET_IDLE:
/* This function does not support multiple reports per interface*/
/* Validate interfaceNumber and Report ID (should be 0) */
if( (interfaceNumber < USBFS_1_MAX_INTERFACES_NUMBER) &&
(CY_GET_REG8(USBFS_1_wValueLo) == 0u ) ) /* Do not support Idle per Report ID */
{
USBFS_1_currentTD.count = 1u;
USBFS_1_currentTD.pData = &USBFS_1_hidIdleRate[interfaceNumber];
requestHandled = USBFS_1_InitControlRead();
}
break;
case USBFS_1_HID_GET_PROTOCOL:
/* Validate interfaceNumber */
if( interfaceNumber < USBFS_1_MAX_INTERFACES_NUMBER)
{
USBFS_1_currentTD.count = 1u;
USBFS_1_currentTD.pData = &USBFS_1_hidProtocol[interfaceNumber];
requestHandled = USBFS_1_InitControlRead();
}
break;
default: /* requestHandled is initialized as FALSE by default */
break;
}
}
else if ((CY_GET_REG8(USBFS_1_bmRequestType) & USBFS_1_RQST_DIR_MASK) ==
USBFS_1_RQST_DIR_H2D)
{ /* Control Write */
switch (CY_GET_REG8(USBFS_1_bRequest))
{
case USBFS_1_HID_SET_REPORT:
USBFS_1_FindReport();
if (USBFS_1_currentTD.count != 0u)
{
requestHandled = USBFS_1_InitControlWrite();
}
break;
case USBFS_1_HID_SET_IDLE:
/* This function does not support multiple reports per interface */
/* Validate interfaceNumber and Report ID (should be 0) */
if( (interfaceNumber < USBFS_1_MAX_INTERFACES_NUMBER) &&
(CY_GET_REG8(USBFS_1_wValueLo) == 0u ) ) /* Do not support Idle per Report ID */
{
USBFS_1_hidIdleRate[interfaceNumber] = CY_GET_REG8(USBFS_1_wValueHi);
/* With regards to HID spec: "7.2.4 Set_Idle Request"
* Latency. If the current period has gone past the
* newly proscribed time duration, then a report
* will be generated immediately.
*/
if(USBFS_1_hidIdleRate[interfaceNumber] <
USBFS_1_hidIdleTimer[interfaceNumber])
{
/* Set the timer to zero and let the UpdateHIDTimer() API return IDLE_TIMER_EXPIRED status*/
USBFS_1_hidIdleTimer[interfaceNumber] = 0u;
}
/* If the new request is received within 4 milliseconds
* (1 count) of the end of the current period, then the
* new request will have no effect until after the report.
*/
else if(USBFS_1_hidIdleTimer[interfaceNumber] <= 1u)
{
/* Do nothing.
* Let the UpdateHIDTimer() API continue to work and
* return IDLE_TIMER_EXPIRED status
*/
}
else
{ /* Reload the timer*/
USBFS_1_hidIdleTimer[interfaceNumber] =
USBFS_1_hidIdleRate[interfaceNumber];
}
requestHandled = USBFS_1_InitNoDataControlTransfer();
}
break;
case USBFS_1_HID_SET_PROTOCOL:
/* Validate interfaceNumber and protocol (must be 0 or 1) */
if( (interfaceNumber < USBFS_1_MAX_INTERFACES_NUMBER) &&
(CY_GET_REG8(USBFS_1_wValueLo) <= 1u) )
{
USBFS_1_hidProtocol[interfaceNumber] = CY_GET_REG8(USBFS_1_wValueLo);
requestHandled = USBFS_1_InitNoDataControlTransfer();
}
break;
default: /* requestHandled is initialized as FALSE by default */
break;
}
}
else
{ /* requestHandled is initialized as FALSE by default */
}
return(requestHandled);
}
