static uint8_t DCOMP_PRNT_NextPRNTInterface(void* CurrentDescriptor)
{
if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
{
if ((DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Class == PRINTER_CLASS) &&
(DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).SubClass == PRINTER_SUBCLASS) &&
(DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Protocol == PRINTER_PROTOCOL))
{
return DESCRIPTOR_SEARCH_Found;
}
}
return DESCRIPTOR_SEARCH_NotFound;
}
/** Descriptor comparator function. This comparator function is can be called while processing an attached USB device's
* configuration descriptor, to search for a specific sub descriptor. It can also be used to abort the configuration
* descriptor processing if an incompatible descriptor configuration is found.
*
* This comparator searches for the next Interface descriptor of the correct Keyboard HID Class and Protocol values.
*
* \return A value from the DSEARCH_Return_ErrorCodes_t enum
*/
uint8_t DComp_NextKeyboardInterface(void* CurrentDescriptor)
{
if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
{
/* Check the HID descriptor class and protocol, break out if correct class/protocol interface found */
if ((DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Class == KEYBOARD_CLASS) &&
(DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Protocol == KEYBOARD_PROTOCOL))
{
return DESCRIPTOR_SEARCH_Found;
}
}
return DESCRIPTOR_SEARCH_NotFound;
}
/** Descriptor comparator function. This comparator function is can be called while processing an attached USB device's
* configuration descriptor, to search for a specific sub descriptor. It can also be used to abort the configuration
* descriptor processing if an incompatible descriptor configuration is found.
*
* This comparator searches for the next Interface descriptor of the correct Still Image Class, Subclass and Protocol values.
*
* \return A value from the DSEARCH_Return_ErrorCodes_t enum
*/
uint8_t DComp_NextStillImageInterface(void* CurrentDescriptor)
{
if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
{
/* Check the descriptor class and protocol, break out if correct class/protocol interface found */
if ((DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Class == SIMAGE_CLASS) &&
(DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).SubClass == SIMAGE_SUBCLASS) &&
(DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Protocol == SIMAGE_PROTOCOL))
{
return DESCRIPTOR_SEARCH_Found;
}
}
return DESCRIPTOR_SEARCH_NotFound;
}
/** Descriptor comparator function. This comparator function is can be called while processing an attached USB device's
* configuration descriptor, to search for a specific sub descriptor. It can also be used to abort the configuration
* descriptor processing if an incompatible descriptor configuration is found.
*
* This comparator searches for the next Interface descriptor of the correct CDC data Class, Subclass and Protocol values.
*
* \return A value from the DSEARCH_Return_ErrorCodes_t enum
*/
uint8_t DComp_NextCDCDataInterface(void* CurrentDescriptor)
{
if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
{
/* Check the CDC descriptor class, subclass and protocol, break out if correct data interface found */
if ((DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Class == CDC_DATA_CLASS) &&
(DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).SubClass == CDC_DATA_SUBCLASS) &&
(DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Protocol == CDC_DATA_PROTOCOL))
{
return DESCRIPTOR_SEARCH_Found;
}
}
return DESCRIPTOR_SEARCH_NotFound;
}
/** Descriptor comparator function. This comparator function is can be called while processing an attached USB device's
* configuration descriptor, to search for a specific sub descriptor. It can also be used to abort the configuration
* descriptor processing if an incompatible descriptor configuration is found.
*
* This comparator searches for the next Interface descriptor of the correct Mouse HID Class and Protocol values.
*
* \return A value from the DSEARCH_Return_ErrorCodes_t enum
*/
uint8_t DComp_NextMouseInterface(void* CurrentDescriptor)
{
/* Determine if the current descriptor is an interface descriptor */
if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
{
/* Check the HID descriptor class and protocol, break out if correct class/protocol interface found */
if ((DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Class == MOUSE_CLASS) &&
(DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Protocol == MOUSE_PROTOCOL))
{
/* Indicate that the descriptor being searched for has been found */
return DESCRIPTOR_SEARCH_Found;
}
}
/* Current descriptor does not match what this comparator is looking for */
return DESCRIPTOR_SEARCH_NotFound;
}
/** Reads and processes an attached device's descriptors, to determine compatibility and pipe configurations. This
* routine will read in the entire configuration descriptor, and configure the hosts pipes to correctly communicate
* with compatible devices.
*
* This routine searches for a HID interface descriptor containing at least one Interrupt type IN endpoint and HID descriptor.
*
* \return An error code from the \ref MouseHostWithParser_GetConfigDescriptorDataCodes_t enum.
*/
uint8_t ProcessConfigurationDescriptor(void)
{
uint8_t ConfigDescriptorData[512];
void* CurrConfigLocation = ConfigDescriptorData;
uint16_t CurrConfigBytesRem;
/* Retrieve the entire configuration descriptor into the allocated buffer */
switch (USB_Host_GetDeviceConfigDescriptor(1, &CurrConfigBytesRem, ConfigDescriptorData, sizeof(ConfigDescriptorData)))
{
case HOST_GETCONFIG_Successful:
break;
case HOST_GETCONFIG_InvalidData:
return InvalidConfigDataReturned;
case HOST_GETCONFIG_BuffOverflow:
return DescriptorTooLarge;
default:
return ControlError;
}
/* Get the mouse interface from the configuration descriptor */
if (USB_GetNextDescriptorComp(&CurrConfigBytesRem, &CurrConfigLocation,
DComp_NextMouseInterface) != DESCRIPTOR_SEARCH_COMP_Found)
{
/* Descriptor not found, error out */
return NoHIDInterfaceFound;
}
/* Get the mouse interface's HID descriptor */
if (USB_GetNextDescriptorComp(&CurrConfigBytesRem, &CurrConfigLocation,
DComp_NextHID) != DESCRIPTOR_SEARCH_COMP_Found)
{
/* Descriptor not found, error out */
return NoHIDDescriptorFound;
}
/* Save the HID report size for later use */
HIDReportSize = DESCRIPTOR_CAST(CurrConfigLocation, USB_Descriptor_HID_t).HIDReportLength;
/* Get the mouse interface's data endpoint descriptor */
if (USB_GetNextDescriptorComp(&CurrConfigBytesRem, &CurrConfigLocation,
DComp_NextMouseInterfaceDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
{
/* Descriptor not found, error out */
return NoEndpointFound;
}
/* Retrieve the endpoint address from the endpoint descriptor */
USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(CurrConfigLocation, USB_Descriptor_Endpoint_t);
/* Configure the mouse data pipe */
Pipe_ConfigurePipe(MOUSE_DATAPIPE, EP_TYPE_INTERRUPT, PIPE_TOKEN_IN,
EndpointData->EndpointAddress, EndpointData->EndpointSize, PIPE_BANK_SINGLE);
/* Valid data found, return success */
return SuccessfulConfigRead;
}
/** Descriptor comparator function. This comparator function is can be called while processing an attached USB device's
* configuration descriptor, to search for a specific sub descriptor. It can also be used to abort the configuration
* descriptor processing if an incompatible descriptor configuration is found.
*
* This comparator searches for the next IN Endpoint descriptor inside the current interface descriptor,
* aborting the search if another interface descriptor is found before the required endpoint.
*
* \return A value from the DSEARCH_Return_ErrorCodes_t enum
*/
uint8_t DComp_NextInterfaceKeyboardDataEndpoint(void* CurrentDescriptor)
{
if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)
{
if (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Endpoint_t).EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
return DESCRIPTOR_SEARCH_Found;
}
else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
{
return DESCRIPTOR_SEARCH_Fail;
}
return DESCRIPTOR_SEARCH_NotFound;
}
static uint8_t DCOMP_PRNT_NextPRNTInterfaceEndpoint(void* CurrentDescriptor)
{
if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)
{
uint8_t EndpointType = (DESCRIPTOR_CAST(CurrentDescriptor,
USB_Descriptor_Endpoint_t).Attributes & EP_TYPE_MASK);
if (EndpointType == EP_TYPE_BULK)
return DESCRIPTOR_SEARCH_Found;
}
else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
{
return DESCRIPTOR_SEARCH_Fail;
}
return DESCRIPTOR_SEARCH_NotFound;
}
/** Descriptor comparator function. This comparator function is can be called while processing an attached USB device's
* configuration descriptor, to search for a specific sub descriptor. It can also be used to abort the configuration
* descriptor processing if an incompatible descriptor configuration is found.
*
* This comparator searches for the next bulk IN or OUT endpoint, or interrupt IN endpoint within the current interface,
* aborting the search if another interface descriptor is found before the required endpoint (so that it may be compared
* using a different comparator to determine if it is another CDC class interface).
*
* \return A value from the DSEARCH_Return_ErrorCodes_t enum
*/
uint8_t DComp_NextInterfaceCDCDataEndpoint(void* CurrentDescriptor)
{
if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)
{
uint8_t EndpointType = (DESCRIPTOR_CAST(CurrentDescriptor,
USB_Descriptor_Endpoint_t).Attributes & EP_TYPE_MASK);
if ((EndpointType == EP_TYPE_BULK) || (EndpointType == EP_TYPE_INTERRUPT))
return DESCRIPTOR_SEARCH_Found;
}
else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
{
return DESCRIPTOR_SEARCH_Fail;
}
return DESCRIPTOR_SEARCH_NotFound;
}
/** Descriptor comparator function. This comparator function is can be called while processing an attached USB device's
* configuration descriptor, to search for a specific sub descriptor. It can also be used to abort the configuration
* descriptor processing if an incompatible descriptor configuration is found.
*
* This comparator searches for the next Bulk Endpoint descriptor of the correct MSD interface, aborting the search if
* another interface descriptor is found before the next endpoint.
*
* \return A value from the DSEARCH_Return_ErrorCodes_t enum
*/
uint8_t DComp_NextMSInterfaceBulkDataEndpoint(void* CurrentDescriptor)
{
if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)
{
uint8_t EndpointType = (DESCRIPTOR_CAST(CurrentDescriptor,
USB_Descriptor_Endpoint_t).Attributes & EP_TYPE_MASK);
/* Check the endpoint type, break out if correct BULK type endpoint found */
if (EndpointType == EP_TYPE_BULK)
return DESCRIPTOR_SEARCH_Found;
}
else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
{
return DESCRIPTOR_SEARCH_Fail;
}
return DESCRIPTOR_SEARCH_NotFound;
}
/** Descriptor comparator function. This comparator function is can be called while processing an attached USB device's
* configuration descriptor, to search for a specific sub descriptor. It can also be used to abort the configuration
* descriptor processing if an incompatible descriptor configuration is found.
*
* This comparator searches for the next IN Endpoint descriptor inside the current interface descriptor,
* aborting the search if another interface descriptor is found before the required endpoint.
*
* \return A value from the DSEARCH_Return_ErrorCodes_t enum
*/
uint8_t DComp_NextMouseInterfaceDataEndpoint(void* CurrentDescriptor)
{
/* Determine the type of the current descriptor */
if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)
{
/* Check if the current Endpoint descriptor is of type IN */
if (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Endpoint_t).EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
{
/* Indicate that the descriptor being searched for has been found */
return DESCRIPTOR_SEARCH_Found;
}
}
else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
{
/* Indicate that the search has failed prematurely and should be aborted */
return DESCRIPTOR_SEARCH_Fail;
}
/* Current descriptor does not match what this comparator is looking for */
return DESCRIPTOR_SEARCH_NotFound;
}
uint8_t USB_Host_GetDeviceConfigDescriptor(uint8_t ConfigNumber, uint16_t* const ConfigSizePtr,
void* BufferPtr, uint16_t BufferSize)
{
uint8_t ErrorCode;
uint8_t ConfigHeader[sizeof(USB_Descriptor_Configuration_Header_t)];
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
.bRequest = REQ_GetDescriptor,
.wValue = ((DTYPE_Configuration << 8) | (ConfigNumber - 1)),
.wIndex = 0,
.wLength = sizeof(USB_Descriptor_Configuration_Header_t),
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
if ((ErrorCode = USB_Host_SendControlRequest(ConfigHeader)) != HOST_SENDCONTROL_Successful)
return ErrorCode;
*ConfigSizePtr = DESCRIPTOR_CAST(ConfigHeader, USB_Descriptor_Configuration_Header_t).TotalConfigurationSize;
if (*ConfigSizePtr > BufferSize)
return HOST_GETCONFIG_BuffOverflow;
USB_ControlRequest.wLength = *ConfigSizePtr;
if ((ErrorCode = USB_Host_SendControlRequest(BufferPtr)) != HOST_SENDCONTROL_Successful)
return ErrorCode;
if (DESCRIPTOR_TYPE(BufferPtr) != DTYPE_Configuration)
return HOST_GETCONFIG_InvalidData;
return HOST_GETCONFIG_Successful;
}
#endif
void USB_GetNextDescriptorOfType(uint16_t* const BytesRem,
void** const CurrConfigLoc,
const uint8_t Type)
{
while (*BytesRem)
{
USB_GetNextDescriptor(BytesRem, CurrConfigLoc);
if (DESCRIPTOR_TYPE(*CurrConfigLoc) == Type)
return;
}
}
void USB_GetNextDescriptorOfTypeBefore(uint16_t* const BytesRem,
void** const CurrConfigLoc,
const uint8_t Type,
const uint8_t BeforeType)
{
while (*BytesRem)
{
USB_GetNextDescriptor(BytesRem, CurrConfigLoc);
if (DESCRIPTOR_TYPE(*CurrConfigLoc) == Type)
{
return;
}
else if (DESCRIPTOR_TYPE(*CurrConfigLoc) == BeforeType)
{
*BytesRem = 0;
return;
}
}
}
void USB_GetNextDescriptorOfTypeAfter(uint16_t* const BytesRem,
void** const CurrConfigLoc,
const uint8_t Type,
const uint8_t AfterType)
{
USB_GetNextDescriptorOfType(BytesRem, CurrConfigLoc, AfterType);
if (*BytesRem)
USB_GetNextDescriptorOfType(BytesRem, CurrConfigLoc, Type);
}
/** Reads and processes an attached device's descriptors, to determine compatibility and pipe configurations. This
* routine will read in the entire configuration descriptor, and configure the hosts pipes to correctly communicate
* with compatible devices.
*
* This routine searches for a HID interface descriptor containing at least one Interrupt type IN endpoint and HID descriptor.
*
* \return An error code from the KeyboardHostWithParser_GetConfigDescriptorDataCodes_t enum.
*/
uint8_t ProcessConfigurationDescriptor(void)
{
uint8_t* ConfigDescriptorData;
uint16_t ConfigDescriptorSize;
/* Get Configuration Descriptor size from the device */
if (USB_GetDeviceConfigDescriptor(&ConfigDescriptorSize, NULL) != HOST_SENDCONTROL_Successful)
return ControlError;
/* Ensure that the Configuration Descriptor isn't too large */
if (ConfigDescriptorSize > MAX_CONFIG_DESCRIPTOR_SIZE)
return DescriptorTooLarge;
/* Allocate enough memory for the entire config descriptor */
ConfigDescriptorData = alloca(ConfigDescriptorSize);
/* Retrieve the entire configuration descriptor into the allocated buffer */
USB_GetDeviceConfigDescriptor(&ConfigDescriptorSize, ConfigDescriptorData);
/* Validate returned data - ensure first entry is a configuration header descriptor */
if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
return InvalidConfigDataReturned;
/* Get the keyboard interface from the configuration descriptor */
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DComp_NextKeyboardInterface) != DESCRIPTOR_SEARCH_COMP_Found)
{
/* Descriptor not found, error out */
return NoHIDInterfaceFound;
}
/* Get the keyboard interface's HID descriptor */
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DComp_NextHID) != DESCRIPTOR_SEARCH_COMP_Found)
{
/* Descriptor not found, error out */
return NoHIDDescriptorFound;
}
/* Save the HID report size for later use */
HIDReportSize = DESCRIPTOR_CAST(ConfigDescriptorData, USB_Descriptor_HID_t).HIDReportLength;
/* Get the keyboard interface's data endpoint descriptor */
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DComp_NextInterfaceKeyboardDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
{
/* Descriptor not found, error out */
return NoEndpointFound;
}
/* Retrieve the endpoint address from the endpoint descriptor */
USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);
/* Configure the keyboard data pipe */
Pipe_ConfigurePipe(KEYBOARD_DATAPIPE, EP_TYPE_INTERRUPT, PIPE_TOKEN_IN,
EndpointData->EndpointAddress, EndpointData->EndpointSize, PIPE_BANK_SINGLE);
Pipe_SetInfiniteINRequests();
/* Valid data found, return success */
return SuccessfulConfigRead;
}
uint8_t USB_Host_GetDeviceConfigDescriptor(uint16_t* const ConfigSizePtr, void* BufferPtr)
{
uint8_t ErrorCode;
USB_HostRequest = (USB_Host_Request_Header_t)
{
bmRequestType: (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
bRequest: REQ_GetDescriptor,
wValue: (DTYPE_Configuration << 8),
wIndex: 0,
wLength: sizeof(USB_Descriptor_Configuration_Header_t),
};
if (BufferPtr == NULL)
{
BufferPtr = alloca(sizeof(USB_Descriptor_Configuration_Header_t));
ErrorCode = USB_Host_SendControlRequest(BufferPtr);
#if defined(USE_NONSTANDARD_DESCRIPTOR_NAMES)
*ConfigSizePtr = DESCRIPTOR_CAST(BufferPtr, USB_Descriptor_Configuration_Header_t).TotalConfigurationSize;
#else
*ConfigSizePtr = DESCRIPTOR_CAST(BufferPtr, USB_Descriptor_Configuration_Header_t).wTotalLength;
#endif
}
else
{
USB_HostRequest.wLength = *ConfigSizePtr;
ErrorCode = USB_Host_SendControlRequest(BufferPtr);
}
return ErrorCode;
}
void USB_Host_GetNextDescriptorOfType(uint16_t* const BytesRem,
uint8_t** const CurrConfigLoc,
const uint8_t Type)
{
while (*BytesRem)
{
USB_Host_GetNextDescriptor(BytesRem, CurrConfigLoc);
if (DESCRIPTOR_TYPE(*CurrConfigLoc) == Type)
return;
}
}
void USB_Host_GetNextDescriptorOfTypeBefore(uint16_t* const BytesRem,
uint8_t** const CurrConfigLoc,
const uint8_t Type,
const uint8_t BeforeType)
{
while (*BytesRem)
{
USB_Host_GetNextDescriptor(BytesRem, CurrConfigLoc);
if (DESCRIPTOR_TYPE(*CurrConfigLoc) == Type)
{
return;
}
else if (DESCRIPTOR_TYPE(*CurrConfigLoc) == BeforeType)
{
*BytesRem = 0;
return;
}
}
}
void USB_Host_GetNextDescriptorOfTypeAfter(uint16_t* const BytesRem,
uint8_t** const CurrConfigLoc,
const uint8_t Type,
const uint8_t AfterType)
{
USB_Host_GetNextDescriptorOfType(BytesRem, CurrConfigLoc, AfterType);
if (*BytesRem)
USB_Host_GetNextDescriptorOfType(BytesRem, CurrConfigLoc, Type);
}
uint8_t RNDIS_Host_ConfigurePipes(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo, uint16_t ConfigDescriptorSize,
void* ConfigDescriptorData)
{
uint8_t FoundEndpoints = 0;
memset(&RNDISInterfaceInfo->State, 0x00, sizeof(RNDISInterfaceInfo->State));
if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
return RNDIS_ENUMERROR_InvalidConfigDescriptor;
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DCOMP_RNDIS_Host_NextRNDISControlInterface) != DESCRIPTOR_SEARCH_COMP_Found)
{
return RNDIS_ENUMERROR_NoRNDISInterfaceFound;
}
RNDISInterfaceInfo->State.ControlInterfaceNumber = DESCRIPTOR_CAST(ConfigDescriptorData, USB_Descriptor_Interface_t).InterfaceNumber;
while (FoundEndpoints != (RNDIS_FOUND_NOTIFICATION_IN | RNDIS_FOUND_DATAPIPE_IN | RNDIS_FOUND_DATAPIPE_OUT))
{
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DCOMP_RNDIS_Host_NextRNDISInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
{
if (FoundEndpoints & RNDIS_FOUND_NOTIFICATION_IN)
{
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DCOMP_RNDIS_Host_NextRNDISDataInterface) != DESCRIPTOR_SEARCH_COMP_Found)
{
return RNDIS_ENUMERROR_NoRNDISInterfaceFound;
}
}
else
{
FoundEndpoints = 0;
Pipe_SelectPipe(RNDISInterfaceInfo->Config.DataINPipeNumber);
Pipe_DisablePipe();
Pipe_SelectPipe(RNDISInterfaceInfo->Config.DataOUTPipeNumber);
Pipe_DisablePipe();
Pipe_SelectPipe(RNDISInterfaceInfo->Config.NotificationPipeNumber);
Pipe_DisablePipe();
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DCOMP_RNDIS_Host_NextRNDISControlInterface) != DESCRIPTOR_SEARCH_COMP_Found)
{
return RNDIS_ENUMERROR_NoRNDISInterfaceFound;
}
}
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DCOMP_RNDIS_Host_NextRNDISInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
{
return RNDIS_ENUMERROR_EndpointsNotFound;
}
}
USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);
if ((EndpointData->Attributes & EP_TYPE_MASK) == EP_TYPE_INTERRUPT)
{
if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
{
Pipe_ConfigurePipe(RNDISInterfaceInfo->Config.NotificationPipeNumber, EP_TYPE_INTERRUPT, PIPE_TOKEN_IN,
EndpointData->EndpointAddress, EndpointData->EndpointSize,
RNDISInterfaceInfo->Config.NotificationPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
RNDISInterfaceInfo->State.NotificationPipeSize = EndpointData->EndpointSize;
Pipe_SetInterruptPeriod(EndpointData->PollingIntervalMS);
FoundEndpoints |= RNDIS_FOUND_NOTIFICATION_IN;
}
}
else
{
if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
{
Pipe_ConfigurePipe(RNDISInterfaceInfo->Config.DataINPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_IN,
EndpointData->EndpointAddress, EndpointData->EndpointSize,
RNDISInterfaceInfo->Config.DataINPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
RNDISInterfaceInfo->State.DataINPipeSize = EndpointData->EndpointSize;
FoundEndpoints |= RNDIS_FOUND_DATAPIPE_IN;
}
else
{
Pipe_ConfigurePipe(RNDISInterfaceInfo->Config.DataOUTPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_OUT,
EndpointData->EndpointAddress, EndpointData->EndpointSize,
RNDISInterfaceInfo->Config.DataOUTPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
RNDISInterfaceInfo->State.DataOUTPipeSize = EndpointData->EndpointSize;
FoundEndpoints |= RNDIS_FOUND_DATAPIPE_OUT;
}
}
}
RNDISInterfaceInfo->State.IsActive = true;
return RNDIS_ENUMERROR_NoError;
}
uint8_t CDC_Host_ConfigurePipes(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, uint16_t ConfigDescriptorSize,
void* ConfigDescriptorData)
{
uint8_t FoundEndpoints = 0;
memset(&CDCInterfaceInfo->State, 0x00, sizeof(CDCInterfaceInfo->State));
if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
return CDC_ENUMERROR_InvalidConfigDescriptor;
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DComp_CDC_Host_NextCDCControlInterface) != DESCRIPTOR_SEARCH_COMP_Found)
{
return CDC_ENUMERROR_NoCDCInterfaceFound;
}
CDCInterfaceInfo->State.ControlInterfaceNumber = DESCRIPTOR_CAST(ConfigDescriptorData, USB_Descriptor_Interface_t).InterfaceNumber;
while (FoundEndpoints != (CDC_FOUND_NOTIFICATION_IN | CDC_FOUND_DATAPIPE_IN | CDC_FOUND_DATAPIPE_OUT))
{
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DComp_CDC_Host_NextCDCInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
{
if (FoundEndpoints & CDC_FOUND_NOTIFICATION_IN)
{
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DComp_CDC_Host_NextCDCDataInterface) != DESCRIPTOR_SEARCH_COMP_Found)
{
return CDC_ENUMERROR_NoCDCInterfaceFound;
}
}
else
{
FoundEndpoints = 0;
Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber);
Pipe_DisablePipe();
Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber);
Pipe_DisablePipe();
Pipe_SelectPipe(CDCInterfaceInfo->Config.NotificationPipeNumber);
Pipe_DisablePipe();
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DComp_CDC_Host_NextCDCControlInterface) != DESCRIPTOR_SEARCH_COMP_Found)
{
return CDC_ENUMERROR_NoCDCInterfaceFound;
}
}
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DComp_CDC_Host_NextCDCInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
{
return CDC_ENUMERROR_EndpointsNotFound;
}
}
USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);
if ((EndpointData->Attributes & EP_TYPE_MASK) == EP_TYPE_INTERRUPT)
{
if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
{
Pipe_ConfigurePipe(CDCInterfaceInfo->Config.NotificationPipeNumber, EP_TYPE_INTERRUPT, PIPE_TOKEN_IN,
EndpointData->EndpointAddress, EndpointData->EndpointSize,
CDCInterfaceInfo->Config.NotificationPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
CDCInterfaceInfo->State.NotificationPipeSize = EndpointData->EndpointSize;
Pipe_SetInterruptPeriod(EndpointData->PollingIntervalMS);
FoundEndpoints |= CDC_FOUND_NOTIFICATION_IN;
}
}
else
{
if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
{
if (Pipe_IsEndpointBound(EndpointData->EndpointAddress))
{
CDCInterfaceInfo->State.BidirectionalDataEndpoints = true;
Pipe_DisablePipe();
}
Pipe_ConfigurePipe(CDCInterfaceInfo->Config.DataINPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_IN,
EndpointData->EndpointAddress, EndpointData->EndpointSize,
CDCInterfaceInfo->Config.DataINPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
CDCInterfaceInfo->State.DataINPipeSize = EndpointData->EndpointSize;
FoundEndpoints |= CDC_FOUND_DATAPIPE_IN;
}
else
{
if (Pipe_IsEndpointBound(EndpointData->EndpointAddress))
{
CDCInterfaceInfo->State.BidirectionalDataEndpoints = true;
}
else
{
Pipe_ConfigurePipe(CDCInterfaceInfo->Config.DataOUTPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_OUT,
EndpointData->EndpointAddress, EndpointData->EndpointSize,
CDCInterfaceInfo->Config.DataOUTPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
}
CDCInterfaceInfo->State.DataOUTPipeSize = EndpointData->EndpointSize;
FoundEndpoints |= CDC_FOUND_DATAPIPE_OUT;
}
}
}
CDCInterfaceInfo->State.ControlLineStates.HostToDevice = (CDC_CONTROL_LINE_OUT_RTS | CDC_CONTROL_LINE_OUT_DTR);
CDCInterfaceInfo->State.ControlLineStates.DeviceToHost = (CDC_CONTROL_LINE_IN_DCD | CDC_CONTROL_LINE_IN_DSR);
CDCInterfaceInfo->State.IsActive = true;
return CDC_ENUMERROR_NoError;
}
