+++ /dev/null
-/*
- LUFA Library
- Copyright (C) Dean Camera, 2011.
-
- dean [at] fourwalledcubicle [dot] com
- www.lufa-lib.org
-*/
-
-/*
- Copyright 2011 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 "CDC.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));
-
- for (uint8_t EndpointNum = 1; EndpointNum < ENDPOINT_TOTAL_ENDPOINTS; EndpointNum++)
- {
- uint16_t Size;
- uint8_t Type;
- uint8_t Direction;
- bool DoubleBanked;
-
- if (EndpointNum == CDCInterfaceInfo->Config.DataINEndpointNumber)
- {
- Size = CDCInterfaceInfo->Config.DataINEndpointSize;
- Direction = ENDPOINT_DIR_IN;
- Type = EP_TYPE_BULK;
- DoubleBanked = CDCInterfaceInfo->Config.DataINEndpointDoubleBank;
- }
- else if (EndpointNum == CDCInterfaceInfo->Config.DataOUTEndpointNumber)
- {
- Size = CDCInterfaceInfo->Config.DataOUTEndpointSize;
- Direction = ENDPOINT_DIR_OUT;
- Type = EP_TYPE_BULK;
- DoubleBanked = CDCInterfaceInfo->Config.DataOUTEndpointDoubleBank;
- }
- else if (EndpointNum == CDCInterfaceInfo->Config.NotificationEndpointNumber)
- {
- Size = CDCInterfaceInfo->Config.NotificationEndpointSize;
- Direction = ENDPOINT_DIR_IN;
- Type = EP_TYPE_INTERRUPT;
- DoubleBanked = CDCInterfaceInfo->Config.NotificationEndpointDoubleBank;
- }
- else
- {
- continue;
- }
-
- if (!(Endpoint_ConfigureEndpoint(EndpointNum, Type, Direction, Size,
- DoubleBanked ? 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;
-
- #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.DataINEndpointNumber);
- 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.DataINEndpointNumber);
- 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.DataINEndpointNumber);
-
- 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.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_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.NotificationEndpointNumber);
-
- 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
-
-void CDC_Device_Event_Stub(void)
-{
-
-}
-
-#endif
-
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