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/*
LUFA Library
Copyright (C) Dean Camera, 2009.
dean [at] fourwalledcubicle [dot] com
www.fourwalledcubicle.com
*/
/*
Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Permission to use, copy, modify, and distribute this software
and its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of the author not be used in
advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
The author disclaim all warranties with regard to this
software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
whatsoever resulting from loss of use, data or profits, whether
in an action of contract, negligence or other tortious action,
arising out of or in connection with the use or performance of
this software.
*/
#define INCLUDE_FROM_CDC_CLASS_C
#include "CDC.h"
void CDC_Device_Event_Stub(void)
{
}
void CDC_Device_ProcessControlPacket(USB_ClassInfo_CDC_t* CDCInterfaceInfo)
{
if (!(Endpoint_IsSETUPReceived()))
return;
if (USB_ControlRequest.wIndex != CDCInterfaceInfo->ControlInterfaceNumber)
return;
switch (USB_ControlRequest.bRequest)
{
case REQ_GetLineEncoding:
if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
{
Endpoint_ClearSETUP();
Endpoint_Write_Control_Stream_LE(&CDCInterfaceInfo->LineEncoding, sizeof(CDCInterfaceInfo->LineEncoding));
Endpoint_ClearOUT();
}
break;
case REQ_SetLineEncoding:
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
{
Endpoint_ClearSETUP();
Endpoint_Read_Control_Stream_LE(&CDCInterfaceInfo->LineEncoding, sizeof(CDCInterfaceInfo->LineEncoding));
Endpoint_ClearIN();
EVENT_CDC_Device_LineEncodingChanged(CDCInterfaceInfo);
}
break;
case REQ_SetControlLineState:
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
{
Endpoint_ClearSETUP();
CDCInterfaceInfo->ControlLineState = USB_ControlRequest.wValue;
EVENT_CDC_Device_ControLineStateChanged(CDCInterfaceInfo);
while (!(Endpoint_IsINReady()));
Endpoint_ClearIN();
}
break;
}
}
bool CDC_Device_ConfigureEndpoints(USB_ClassInfo_CDC_t* CDCInterfaceInfo)
{
if (!(Endpoint_ConfigureEndpoint(CDCInterfaceInfo->DataINEndpointNumber, EP_TYPE_BULK,
ENDPOINT_DIR_IN, CDCInterfaceInfo->DataINEndpointSize,
ENDPOINT_BANK_SINGLE)))
{
return false;
}
if (!(Endpoint_ConfigureEndpoint(CDCInterfaceInfo->DataOUTEndpointNumber, EP_TYPE_BULK,
ENDPOINT_DIR_OUT, CDCInterfaceInfo->DataOUTEndpointSize,
ENDPOINT_BANK_SINGLE)))
{
return false;
}
if (!(Endpoint_ConfigureEndpoint(CDCInterfaceInfo->NotificationEndpointNumber, EP_TYPE_INTERRUPT,
ENDPOINT_DIR_IN, CDCInterfaceInfo->NotificationEndpointSize,
ENDPOINT_BANK_SINGLE)))
{
return false;
}
return true;
}
void CDC_Device_USBTask(USB_ClassInfo_CDC_t* CDCInterfaceInfo)
{
if (!(USB_IsConnected))
return;
Endpoint_SelectEndpoint(CDCInterfaceInfo->DataINEndpointNumber);
if (!(Endpoint_BytesInEndpoint()))
return;
if (!(Endpoint_IsReadWriteAllowed()))
{
Endpoint_ClearIN();
while (!(Endpoint_IsReadWriteAllowed()));
}
Endpoint_ClearIN();
}
void CDC_Device_SendString(USB_ClassInfo_CDC_t* CDCInterfaceInfo, char* Data, uint16_t Length)
{
if (!(USB_IsConnected))
return;
Endpoint_SelectEndpoint(CDCInterfaceInfo->DataINEndpointNumber);
Endpoint_Write_Stream_LE(Data, Length, NO_STREAM_CALLBACK);
}
void CDC_Device_SendByte(USB_ClassInfo_CDC_t* CDCInterfaceInfo, uint8_t Data)
{
if (!(USB_IsConnected))
return;
Endpoint_SelectEndpoint(CDCInterfaceInfo->DataINEndpointNumber);
if (!(Endpoint_IsReadWriteAllowed()))
{
Endpoint_ClearIN();
while (!(Endpoint_IsReadWriteAllowed()));
}
Endpoint_Write_Byte(Data);
}
uint16_t CDC_Device_BytesReceived(USB_ClassInfo_CDC_t* CDCInterfaceInfo)
{
Endpoint_SelectEndpoint(CDCInterfaceInfo->DataOUTEndpointNumber);
return Endpoint_BytesInEndpoint();
}
uint8_t CDC_Device_ReceiveByte(USB_ClassInfo_CDC_t* CDCInterfaceInfo)
{
if (!(USB_IsConnected))
return 0;
Endpoint_SelectEndpoint(CDCInterfaceInfo->DataOUTEndpointNumber);
uint8_t DataByte = Endpoint_Read_Byte();
if (!(Endpoint_BytesInEndpoint()))
Endpoint_ClearOUT();
return DataByte;
}
void CDC_Device_SendControlLineStateChange(USB_ClassInfo_CDC_t* CDCInterfaceInfo, uint16_t LineStateMask)
{
if (!(USB_IsConnected))
return;
Endpoint_SelectEndpoint(CDCInterfaceInfo->NotificationEndpointNumber);
USB_Request_Header_t Notification = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
.bRequest = NOTIF_SerialState,
.wValue = 0,
.wIndex = 0,
.wLength = sizeof(uint16_t),
};
Endpoint_Write_Stream_LE(&Notification, sizeof(Notification), NO_STREAM_CALLBACK);
Endpoint_Write_Stream_LE(&LineStateMask, sizeof(LineStateMask), NO_STREAM_CALLBACK);
Endpoint_ClearIN();
}
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