You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
336 lines
9.9 KiB
336 lines
9.9 KiB
/*
|
|
LUFA Library
|
|
Copyright (C) Dean Camera, 2012.
|
|
|
|
dean [at] fourwalledcubicle [dot] com
|
|
www.lufa-lib.org
|
|
*/
|
|
|
|
/*
|
|
Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
|
|
|
|
Permission to use, copy, modify, distribute, and sell this
|
|
software and its documentation for any purpose is hereby granted
|
|
without fee, 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_USB_DRIVER
|
|
#include "../../Core/USBMode.h"
|
|
|
|
#if defined(USB_CAN_BE_DEVICE)
|
|
|
|
#define __INCLUDE_FROM_CDC_DRIVER
|
|
#define __INCLUDE_FROM_CDC_DEVICE_C
|
|
#include "CDCClassDevice.h"
|
|
|
|
void CDC_Device_ProcessControlRequest(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
|
|
{
|
|
if (!(Endpoint_IsSETUPReceived()))
|
|
return;
|
|
|
|
if (USB_ControlRequest.wIndex != CDCInterfaceInfo->Config.ControlInterfaceNumber)
|
|
return;
|
|
|
|
switch (USB_ControlRequest.bRequest)
|
|
{
|
|
case CDC_REQ_GetLineEncoding:
|
|
if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
|
|
{
|
|
Endpoint_ClearSETUP();
|
|
|
|
while (!(Endpoint_IsINReady()));
|
|
|
|
Endpoint_Write_32_LE(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS);
|
|
Endpoint_Write_8(CDCInterfaceInfo->State.LineEncoding.CharFormat);
|
|
Endpoint_Write_8(CDCInterfaceInfo->State.LineEncoding.ParityType);
|
|
Endpoint_Write_8(CDCInterfaceInfo->State.LineEncoding.DataBits);
|
|
|
|
Endpoint_ClearIN();
|
|
Endpoint_ClearStatusStage();
|
|
}
|
|
|
|
break;
|
|
case CDC_REQ_SetLineEncoding:
|
|
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
|
|
{
|
|
Endpoint_ClearSETUP();
|
|
|
|
while (!(Endpoint_IsOUTReceived()));
|
|
|
|
CDCInterfaceInfo->State.LineEncoding.BaudRateBPS = Endpoint_Read_32_LE();
|
|
CDCInterfaceInfo->State.LineEncoding.CharFormat = Endpoint_Read_8();
|
|
CDCInterfaceInfo->State.LineEncoding.ParityType = Endpoint_Read_8();
|
|
CDCInterfaceInfo->State.LineEncoding.DataBits = Endpoint_Read_8();
|
|
|
|
Endpoint_ClearOUT();
|
|
Endpoint_ClearStatusStage();
|
|
|
|
EVENT_CDC_Device_LineEncodingChanged(CDCInterfaceInfo);
|
|
}
|
|
|
|
break;
|
|
case CDC_REQ_SetControlLineState:
|
|
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
|
|
{
|
|
Endpoint_ClearSETUP();
|
|
Endpoint_ClearStatusStage();
|
|
|
|
CDCInterfaceInfo->State.ControlLineStates.HostToDevice = USB_ControlRequest.wValue;
|
|
|
|
EVENT_CDC_Device_ControLineStateChanged(CDCInterfaceInfo);
|
|
}
|
|
|
|
break;
|
|
case CDC_REQ_SendBreak:
|
|
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
|
|
{
|
|
Endpoint_ClearSETUP();
|
|
Endpoint_ClearStatusStage();
|
|
|
|
EVENT_CDC_Device_BreakSent(CDCInterfaceInfo, (uint8_t)USB_ControlRequest.wValue);
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
bool CDC_Device_ConfigureEndpoints(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
|
|
{
|
|
memset(&CDCInterfaceInfo->State, 0x00, sizeof(CDCInterfaceInfo->State));
|
|
|
|
CDCInterfaceInfo->Config.DataINEndpoint.Type = EP_TYPE_BULK;
|
|
CDCInterfaceInfo->Config.DataOUTEndpoint.Type = EP_TYPE_BULK;
|
|
CDCInterfaceInfo->Config.NotificationEndpoint.Type = EP_TYPE_INTERRUPT;
|
|
|
|
if (!(Endpoint_ConfigureEndpointTable(&CDCInterfaceInfo->Config.DataINEndpoint, 1)))
|
|
return false;
|
|
|
|
if (!(Endpoint_ConfigureEndpointTable(&CDCInterfaceInfo->Config.DataOUTEndpoint, 1)))
|
|
return false;
|
|
|
|
if (!(Endpoint_ConfigureEndpointTable(&CDCInterfaceInfo->Config.NotificationEndpoint, 1)))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
void CDC_Device_USBTask(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
|
|
{
|
|
if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
|
|
return;
|
|
|
|
#if !defined(NO_CLASS_DRIVER_AUTOFLUSH)
|
|
CDC_Device_Flush(CDCInterfaceInfo);
|
|
#endif
|
|
}
|
|
|
|
uint8_t CDC_Device_SendString(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
|
|
const char* const String)
|
|
{
|
|
if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
|
|
return ENDPOINT_RWSTREAM_DeviceDisconnected;
|
|
|
|
Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
|
|
return Endpoint_Write_Stream_LE(String, strlen(String), NULL);
|
|
}
|
|
|
|
uint8_t CDC_Device_SendData(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
|
|
const char* const Buffer,
|
|
const uint16_t Length)
|
|
{
|
|
if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
|
|
return ENDPOINT_RWSTREAM_DeviceDisconnected;
|
|
|
|
Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
|
|
return Endpoint_Write_Stream_LE(Buffer, Length, NULL);
|
|
}
|
|
|
|
uint8_t CDC_Device_SendByte(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
|
|
const uint8_t Data)
|
|
{
|
|
if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
|
|
return ENDPOINT_RWSTREAM_DeviceDisconnected;
|
|
|
|
Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
|
|
|
|
if (!(Endpoint_IsReadWriteAllowed()))
|
|
{
|
|
Endpoint_ClearIN();
|
|
|
|
uint8_t ErrorCode;
|
|
|
|
if ((ErrorCode = Endpoint_WaitUntilReady()) != ENDPOINT_READYWAIT_NoError)
|
|
return ErrorCode;
|
|
}
|
|
|
|
Endpoint_Write_8(Data);
|
|
return ENDPOINT_READYWAIT_NoError;
|
|
}
|
|
|
|
uint8_t CDC_Device_Flush(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
|
|
{
|
|
if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
|
|
return ENDPOINT_RWSTREAM_DeviceDisconnected;
|
|
|
|
uint8_t ErrorCode;
|
|
|
|
Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpoint.Address);
|
|
|
|
if (!(Endpoint_BytesInEndpoint()))
|
|
return ENDPOINT_READYWAIT_NoError;
|
|
|
|
bool BankFull = !(Endpoint_IsReadWriteAllowed());
|
|
|
|
Endpoint_ClearIN();
|
|
|
|
if (BankFull)
|
|
{
|
|
if ((ErrorCode = Endpoint_WaitUntilReady()) != ENDPOINT_READYWAIT_NoError)
|
|
return ErrorCode;
|
|
|
|
Endpoint_ClearIN();
|
|
}
|
|
|
|
return ENDPOINT_READYWAIT_NoError;
|
|
}
|
|
|
|
uint16_t CDC_Device_BytesReceived(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
|
|
{
|
|
if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
|
|
return 0;
|
|
|
|
Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataOUTEndpoint.Address);
|
|
|
|
if (Endpoint_IsOUTReceived())
|
|
{
|
|
if (!(Endpoint_BytesInEndpoint()))
|
|
{
|
|
Endpoint_ClearOUT();
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
return Endpoint_BytesInEndpoint();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int16_t CDC_Device_ReceiveByte(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
|
|
{
|
|
if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
|
|
return -1;
|
|
|
|
int16_t ReceivedByte = -1;
|
|
|
|
Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataOUTEndpoint.Address);
|
|
|
|
if (Endpoint_IsOUTReceived())
|
|
{
|
|
if (Endpoint_BytesInEndpoint())
|
|
ReceivedByte = Endpoint_Read_8();
|
|
|
|
if (!(Endpoint_BytesInEndpoint()))
|
|
Endpoint_ClearOUT();
|
|
}
|
|
|
|
return ReceivedByte;
|
|
}
|
|
|
|
void CDC_Device_SendControlLineStateChange(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
|
|
{
|
|
if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
|
|
return;
|
|
|
|
Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.NotificationEndpoint.Address);
|
|
|
|
USB_Request_Header_t Notification = (USB_Request_Header_t)
|
|
{
|
|
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
|
|
.bRequest = CDC_NOTIF_SerialState,
|
|
.wValue = CPU_TO_LE16(0),
|
|
.wIndex = CPU_TO_LE16(0),
|
|
.wLength = CPU_TO_LE16(sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost)),
|
|
};
|
|
|
|
Endpoint_Write_Stream_LE(&Notification, sizeof(USB_Request_Header_t), NULL);
|
|
Endpoint_Write_Stream_LE(&CDCInterfaceInfo->State.ControlLineStates.DeviceToHost,
|
|
sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost),
|
|
NULL);
|
|
Endpoint_ClearIN();
|
|
}
|
|
|
|
#if defined(FDEV_SETUP_STREAM)
|
|
void CDC_Device_CreateStream(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
|
|
FILE* const Stream)
|
|
{
|
|
*Stream = (FILE)FDEV_SETUP_STREAM(CDC_Device_putchar, CDC_Device_getchar, _FDEV_SETUP_RW);
|
|
fdev_set_udata(Stream, CDCInterfaceInfo);
|
|
}
|
|
|
|
void CDC_Device_CreateBlockingStream(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
|
|
FILE* const Stream)
|
|
{
|
|
*Stream = (FILE)FDEV_SETUP_STREAM(CDC_Device_putchar, CDC_Device_getchar_Blocking, _FDEV_SETUP_RW);
|
|
fdev_set_udata(Stream, CDCInterfaceInfo);
|
|
}
|
|
|
|
static int CDC_Device_putchar(char c,
|
|
FILE* Stream)
|
|
{
|
|
return CDC_Device_SendByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream), c) ? _FDEV_ERR : 0;
|
|
}
|
|
|
|
static int CDC_Device_getchar(FILE* Stream)
|
|
{
|
|
int16_t ReceivedByte = CDC_Device_ReceiveByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream));
|
|
|
|
if (ReceivedByte < 0)
|
|
return _FDEV_EOF;
|
|
|
|
return ReceivedByte;
|
|
}
|
|
|
|
static int CDC_Device_getchar_Blocking(FILE* Stream)
|
|
{
|
|
int16_t ReceivedByte;
|
|
|
|
while ((ReceivedByte = CDC_Device_ReceiveByte((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream))) < 0)
|
|
{
|
|
if (USB_DeviceState == DEVICE_STATE_Unattached)
|
|
return _FDEV_EOF;
|
|
|
|
CDC_Device_USBTask((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream));
|
|
USB_USBTask();
|
|
}
|
|
|
|
return ReceivedByte;
|
|
}
|
|
#endif
|
|
|
|
// cppcheck-suppress unusedFunction
|
|
void CDC_Device_Event_Stub(void)
|
|
{
|
|
|
|
}
|
|
|
|
#endif
|
|
|