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.
310 lines
9.4 KiB
310 lines
9.4 KiB
/* |
|
LUFA Library |
|
Copyright (C) Dean Camera, 2010. |
|
|
|
dean [at] fourwalledcubicle [dot] com |
|
www.fourwalledcubicle.com |
|
*/ |
|
|
|
/* |
|
Copyright 2010 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 "../../HighLevel/USBMode.h" |
|
#if defined(USB_CAN_BE_DEVICE) |
|
|
|
#define __INCLUDE_FROM_CDC_CLASS_DEVICE_C |
|
#define __INCLUDE_FROM_CDC_DRIVER |
|
#include "CDC.h" |
|
|
|
void CDC_Device_Event_Stub(void) |
|
{ |
|
|
|
} |
|
|
|
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 REQ_GetLineEncoding: |
|
if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE)) |
|
{ |
|
Endpoint_ClearSETUP(); |
|
Endpoint_Write_Control_Stream_LE(&CDCInterfaceInfo->State.LineEncoding, sizeof(CDCInterfaceInfo->State.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->State.LineEncoding, sizeof(CDCInterfaceInfo->State.LineEncoding)); |
|
EVENT_CDC_Device_LineEncodingChanged(CDCInterfaceInfo); |
|
Endpoint_ClearIN(); |
|
} |
|
|
|
break; |
|
case REQ_SetControlLineState: |
|
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE)) |
|
{ |
|
Endpoint_ClearSETUP(); |
|
|
|
CDCInterfaceInfo->State.ControlLineStates.HostToDevice = USB_ControlRequest.wValue; |
|
EVENT_CDC_Device_ControLineStateChanged(CDCInterfaceInfo); |
|
|
|
Endpoint_ClearStatusStage(); |
|
} |
|
|
|
break; |
|
case REQ_SendBreak: |
|
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE)) |
|
{ |
|
Endpoint_ClearSETUP(); |
|
|
|
EVENT_CDC_Device_BreakSent(CDCInterfaceInfo, (uint8_t)USB_ControlRequest.wValue); |
|
|
|
Endpoint_ClearStatusStage(); |
|
} |
|
|
|
break; |
|
} |
|
} |
|
|
|
bool CDC_Device_ConfigureEndpoints(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) |
|
{ |
|
memset(&CDCInterfaceInfo->State, 0x00, sizeof(CDCInterfaceInfo->State)); |
|
|
|
if (!(Endpoint_ConfigureEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber, EP_TYPE_BULK, |
|
ENDPOINT_DIR_IN, CDCInterfaceInfo->Config.DataINEndpointSize, |
|
CDCInterfaceInfo->Config.DataINEndpointDoubleBank ? ENDPOINT_BANK_DOUBLE : ENDPOINT_BANK_SINGLE))) |
|
{ |
|
return false; |
|
} |
|
|
|
if (!(Endpoint_ConfigureEndpoint(CDCInterfaceInfo->Config.DataOUTEndpointNumber, EP_TYPE_BULK, |
|
ENDPOINT_DIR_OUT, CDCInterfaceInfo->Config.DataOUTEndpointSize, |
|
CDCInterfaceInfo->Config.DataOUTEndpointDoubleBank ? ENDPOINT_BANK_DOUBLE : ENDPOINT_BANK_SINGLE))) |
|
{ |
|
return false; |
|
} |
|
|
|
if (!(Endpoint_ConfigureEndpoint(CDCInterfaceInfo->Config.NotificationEndpointNumber, EP_TYPE_INTERRUPT, |
|
ENDPOINT_DIR_IN, CDCInterfaceInfo->Config.NotificationEndpointSize, |
|
CDCInterfaceInfo->Config.NotificationEndpointDoubleBank ? ENDPOINT_BANK_DOUBLE : ENDPOINT_BANK_SINGLE))) |
|
{ |
|
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; |
|
|
|
CDC_Device_Flush(CDCInterfaceInfo); |
|
} |
|
|
|
uint8_t CDC_Device_SendString(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, |
|
const char* const Data, |
|
const uint16_t Length) |
|
{ |
|
if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS)) |
|
return ENDPOINT_RWSTREAM_DeviceDisconnected; |
|
|
|
Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber); |
|
return Endpoint_Write_Stream_LE(Data, Length, NO_STREAM_CALLBACK); |
|
} |
|
|
|
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.DataINEndpointNumber); |
|
|
|
if (!(Endpoint_IsReadWriteAllowed())) |
|
{ |
|
Endpoint_ClearIN(); |
|
|
|
uint8_t ErrorCode; |
|
|
|
if ((ErrorCode = Endpoint_WaitUntilReady()) != ENDPOINT_READYWAIT_NoError) |
|
return ErrorCode; |
|
} |
|
|
|
Endpoint_Write_Byte(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.DataINEndpointNumber); |
|
|
|
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.DataOUTEndpointNumber); |
|
|
|
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.DataOUTEndpointNumber); |
|
|
|
if (Endpoint_IsOUTReceived()) |
|
{ |
|
if (Endpoint_BytesInEndpoint()) |
|
ReceivedByte = Endpoint_Read_Byte(); |
|
|
|
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.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(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost), |
|
}; |
|
|
|
Endpoint_Write_Stream_LE(&Notification, sizeof(USB_Request_Header_t), NO_STREAM_CALLBACK); |
|
Endpoint_Write_Stream_LE(&CDCInterfaceInfo->State.ControlLineStates.DeviceToHost, |
|
sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost), |
|
NO_STREAM_CALLBACK); |
|
Endpoint_ClearIN(); |
|
} |
|
|
|
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
|
|
|