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[pub/USBasp.git] / LUFA / Drivers / USB / Class / Host / CDC.c

diff --git a/LUFA/Drivers/USB/Class/Host/CDC.c b/LUFA/Drivers/USB/Class/Host/CDC.c
index 32cc9e6..85864b0 100644 (file)
--- a/LUFA/Drivers/USB/Class/Host/CDC.c
+++ b/LUFA/Drivers/USB/Class/Host/CDC.c
@@ -1,21 +1,21 @@
 /*\r
              LUFA Library\r
 /*\r
              LUFA Library\r

-     Copyright (C) Dean Camera, 2009.\r
+     Copyright (C) Dean Camera, 2010.\r

               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r
               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r

-  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
-  Permission to use, copy, modify, and distribute this software\r
-  and its documentation for any purpose and without fee is hereby\r
-  granted, provided that the above copyright notice appear in all\r
-  copies and that both that the copyright notice and this\r
-  permission notice and warranty disclaimer appear in supporting\r
-  documentation, and that the name of the author not be used in\r
-  advertising or publicity pertaining to distribution of the\r
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+\r
+  Permission to use, copy, modify, distribute, and sell this \r
+  software and its documentation for any purpose is hereby granted\r
+  without fee, provided that the above copyright notice appear in \r
+  all copies and that both that the copyright notice and this\r
+  permission notice and warranty disclaimer appear in supporting \r
+  documentation, and that the name of the author not be used in \r
+  advertising or publicity pertaining to distribution of the \r

   software without specific, written prior permission.\r
 \r
   The author disclaim all warranties with regard to this\r
   software without specific, written prior permission.\r
 \r
   The author disclaim all warranties with regard to this\r


@@ -34,69 +34,59 @@
 #define  INCLUDE_FROM_CDC_CLASS_HOST_C\r
 #include "CDC.h"\r
 \r
 #define  INCLUDE_FROM_CDC_CLASS_HOST_C\r
 #include "CDC.h"\r
 \r

-static uint8_t CDC_Host_ProcessConfigDescriptor(void)\r
+uint8_t CDC_Host_ConfigurePipes(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, uint16_t ConfigDescriptorSize,\r
+                                void* ConfigDescriptorData)\r

 {\r
 {\r

-       uint8_t* ConfigDescriptorData;\r
-       uint16_t ConfigDescriptorSize;\r
-       uint8_t  FoundEndpoints = 0;\r
-       \r
-       if (USB_GetDeviceConfigDescriptor(&ConfigDescriptorSize, NULL) != HOST_SENDCONTROL_Successful)\r
-         return ControlError;\r
-       \r
-       if (ConfigDescriptorSize > 512)\r
-         return DescriptorTooLarge;\r
-         \r
-       ConfigDescriptorData = alloca(ConfigDescriptorSize);\r
+       uint8_t FoundEndpoints = 0;\r
+\r
+       memset(&CDCInterfaceInfo->State, 0x00, sizeof(CDCInterfaceInfo->State));\r

 \r
 \r

-       USB_GetDeviceConfigDescriptor(&ConfigDescriptorSize, ConfigDescriptorData);\r
-       \r

        if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)\r
        if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)\r

-         return InvalidConfigDataReturned;\r
+         return CDC_ENUMERROR_InvalidConfigDescriptor;\r

        \r
        if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,\r
                                      DComp_CDC_Host_NextCDCControlInterface) != DESCRIPTOR_SEARCH_COMP_Found)\r
        {\r
        \r
        if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,\r
                                      DComp_CDC_Host_NextCDCControlInterface) != DESCRIPTOR_SEARCH_COMP_Found)\r
        {\r

-               return NoCDCInterfaceFound;\r
+               return CDC_ENUMERROR_NoCDCInterfaceFound;\r

        }\r
        }\r

+       \r
+       CDCInterfaceInfo->State.ControlInterfaceNumber = DESCRIPTOR_CAST(ConfigDescriptorData, USB_Descriptor_Interface_t).InterfaceNumber;\r

 \r
 \r

-       while (FoundEndpoints != ((1 << CDC_NOTIFICATIONPIPE) | (1 << CDC_DATAPIPE_IN) | (1 << CDC_DATAPIPE_OUT)))\r
+       while (FoundEndpoints != (CDC_FOUND_NOTIFICATION_IN | CDC_FOUND_DATAPIPE_IN | CDC_FOUND_DATAPIPE_OUT))\r

        {\r
                if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,\r
        {\r
                if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,\r

-                                             DComp_CDC_Host_NextInterfaceCDCDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)\r
+                                             DComp_CDC_Host_NextCDCInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)\r

                {\r
                {\r

-                       /* Check to see if the control interface's notification pipe has been found, if so search for the data interface */\r
-                       if (FoundEndpoints & (1 << CDC_NOTIFICATIONPIPE))\r
+                       if (FoundEndpoints & CDC_FOUND_NOTIFICATION_IN)\r

                        {\r
                        {\r

-                               /* Get the next CDC data interface from the configuration descriptor (CDC class has two CDC interfaces) */\r

                                if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, \r
                                                              DComp_CDC_Host_NextCDCDataInterface) != DESCRIPTOR_SEARCH_COMP_Found)\r
                                {\r
                                if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, \r
                                                              DComp_CDC_Host_NextCDCDataInterface) != DESCRIPTOR_SEARCH_COMP_Found)\r
                                {\r

-                                       /* Descriptor not found, error out */\r
-                                       return NoCDCInterfaceFound;\r
+                                       return CDC_ENUMERROR_NoCDCInterfaceFound;\r

                                }\r
                        }\r
                        else\r
                        {\r
                                FoundEndpoints = 0;\r
 \r
                                }\r
                        }\r
                        else\r
                        {\r
                                FoundEndpoints = 0;\r
 \r

-                               Pipe_SelectPipe(CDC_NOTIFICATIONPIPE);\r
+                               Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber);\r

                                Pipe_DisablePipe();\r
                                Pipe_DisablePipe();\r

-                               Pipe_SelectPipe(CDC_DATAPIPE_IN);\r
+                               Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber);\r

                                Pipe_DisablePipe();\r
                                Pipe_DisablePipe();\r

-                               Pipe_SelectPipe(CDC_DATAPIPE_OUT);\r
+                               Pipe_SelectPipe(CDCInterfaceInfo->Config.NotificationPipeNumber);\r

                                Pipe_DisablePipe();\r
                        \r
                                if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,\r
                                                              DComp_CDC_Host_NextCDCControlInterface) != DESCRIPTOR_SEARCH_COMP_Found)\r
                                {\r
                                Pipe_DisablePipe();\r
                        \r
                                if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,\r
                                                              DComp_CDC_Host_NextCDCControlInterface) != DESCRIPTOR_SEARCH_COMP_Found)\r
                                {\r

-                                       return NoCDCInterfaceFound;\r
+                                       return CDC_ENUMERROR_NoCDCInterfaceFound;\r

                                }\r
                        }\r
 \r
                        if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,\r
                                }\r
                        }\r
 \r
                        if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,\r

-                                                     DComp_CDC_Host_NextInterfaceCDCDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)\r
+                                                     DComp_CDC_Host_NextCDCInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)\r

                        {\r
                        {\r

-                               return NoEndpointFound;\r
+                               return CDC_ENUMERROR_EndpointsNotFound;\r

                        }\r
                }\r
                \r
                        }\r
                }\r
                \r


@@ -105,51 +95,58 @@ static uint8_t CDC_Host_ProcessConfigDescriptor(void)
                if ((EndpointData->Attributes & EP_TYPE_MASK) == EP_TYPE_INTERRUPT)\r
                {\r
                        if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)\r
                if ((EndpointData->Attributes & EP_TYPE_MASK) == EP_TYPE_INTERRUPT)\r
                {\r
                        if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)\r

-                       {                                                          \r
-                               Pipe_ConfigurePipe(CDC_NOTIFICATIONPIPE, EP_TYPE_INTERRUPT, PIPE_TOKEN_IN,\r
-                                                                  EndpointData->EndpointAddress, EndpointData->EndpointSize, PIPE_BANK_SINGLE);\r
+                       {\r
+                               Pipe_ConfigurePipe(CDCInterfaceInfo->Config.NotificationPipeNumber, EP_TYPE_INTERRUPT, PIPE_TOKEN_IN,\r
+                                                                  EndpointData->EndpointAddress, EndpointData->EndpointSize,\r
+                                                                  CDCInterfaceInfo->Config.NotificationPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);\r
+                               CDCInterfaceInfo->State.NotificationPipeSize = EndpointData->EndpointSize;\r

 \r
 \r

-                               Pipe_SetInfiniteINRequests();\r

                                Pipe_SetInterruptPeriod(EndpointData->PollingIntervalMS);\r
                                \r
                                Pipe_SetInterruptPeriod(EndpointData->PollingIntervalMS);\r
                                \r

-                               FoundEndpoints |= (1 << CDC_NOTIFICATIONPIPE);\r
+                               FoundEndpoints |= CDC_FOUND_NOTIFICATION_IN;\r

                        }\r
                }\r
                else\r
                {\r
                        if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)\r
                        {\r
                        }\r
                }\r
                else\r
                {\r
                        if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)\r
                        {\r

-                               Pipe_ConfigurePipe(CDC_DATAPIPE_IN, EP_TYPE_BULK, PIPE_TOKEN_IN,\r
-                                                                  EndpointData->EndpointAddress, EndpointData->EndpointSize, PIPE_BANK_SINGLE);\r
+                               Pipe_ConfigurePipe(CDCInterfaceInfo->Config.DataINPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_IN,\r
+                                                  EndpointData->EndpointAddress, EndpointData->EndpointSize, \r
+                                                  CDCInterfaceInfo->Config.DataINPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);\r

 \r
 \r

-                               Pipe_SetInfiniteINRequests();\r
-                               Pipe_Unfreeze();\r
-                               \r
-                               FoundEndpoints |= (1 << CDC_DATAPIPE_IN);\r
+                               CDCInterfaceInfo->State.DataINPipeSize = EndpointData->EndpointSize;\r
+\r
+                               FoundEndpoints |= CDC_FOUND_DATAPIPE_IN;\r

                        }\r
                        else\r
                        {\r
                        }\r
                        else\r
                        {\r

-                               Pipe_ConfigurePipe(CDC_DATAPIPE_OUT, EP_TYPE_BULK, PIPE_TOKEN_OUT,\r
-                                                                  EndpointData->EndpointAddress, EndpointData->EndpointSize, PIPE_BANK_SINGLE);\r
-                               \r
-                               Pipe_Unfreeze();\r
+                               Pipe_ConfigurePipe(CDCInterfaceInfo->Config.DataOUTPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_OUT,\r
+                                                                  EndpointData->EndpointAddress, EndpointData->EndpointSize, \r
+                                                                  CDCInterfaceInfo->Config.DataOUTPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);\r
+                       \r
+                               CDCInterfaceInfo->State.DataOUTPipeSize = EndpointData->EndpointSize;\r

                                \r
                                \r

-                               FoundEndpoints |= (1 << CDC_DATAPIPE_OUT);\r
+                               FoundEndpoints |= CDC_FOUND_DATAPIPE_OUT;\r

                        }\r
                }\r
        }\r
 \r
                        }\r
                }\r
        }\r
 \r

-       return SuccessfulConfigRead;\r
+       CDCInterfaceInfo->State.ControlLineStates.HostToDevice = (CDC_CONTROL_LINE_OUT_RTS | CDC_CONTROL_LINE_OUT_DTR);\r
+       CDCInterfaceInfo->State.ControlLineStates.DeviceToHost = (CDC_CONTROL_LINE_IN_DCD  | CDC_CONTROL_LINE_IN_DSR);\r
+       CDCInterfaceInfo->State.IsActive = true;\r
+       return CDC_ENUMERROR_NoError;\r

 }\r
 \r
 }\r
 \r

-static uint8_t DComp_CDC_Host_NextCDCControlInterface(void* CurrentDescriptor)\r
+static uint8_t DComp_CDC_Host_NextCDCControlInterface(void* const CurrentDescriptor)\r

 {\r
        if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)\r
        {\r
 {\r
        if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)\r
        {\r

-               /* Check the CDC descriptor class, subclass and protocol, break out if correct control interface found */\r
-               if ((DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Class    == CDC_CONTROL_CLASS)    &&\r
-                   (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).SubClass == CDC_CONTROL_SUBCLASS) &&\r
-                   (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Protocol == CDC_CONTROL_PROTOCOL))\r
+               USB_Descriptor_Interface_t* CurrentInterface = DESCRIPTOR_PCAST(CurrentDescriptor,\r
+                                                                               USB_Descriptor_Interface_t);\r
+       \r
+               if ((CurrentInterface->Class    == CDC_CONTROL_CLASS)    &&\r
+                   (CurrentInterface->SubClass == CDC_CONTROL_SUBCLASS) &&\r
+                       (CurrentInterface->Protocol == CDC_CONTROL_PROTOCOL))\r

                {\r
                        return DESCRIPTOR_SEARCH_Found;\r
                }\r
                {\r
                        return DESCRIPTOR_SEARCH_Found;\r
                }\r


@@ -158,14 +155,16 @@ static uint8_t DComp_CDC_Host_NextCDCControlInterface(void* CurrentDescriptor)
        return DESCRIPTOR_SEARCH_NotFound;\r
 }\r
 \r
        return DESCRIPTOR_SEARCH_NotFound;\r
 }\r
 \r

-static uint8_t DComp_CDC_Host_NextCDCDataInterface(void* CurrentDescriptor)\r
+static uint8_t DComp_CDC_Host_NextCDCDataInterface(void* const CurrentDescriptor)\r

 {\r
        if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)\r
        {\r
 {\r
        if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)\r
        {\r

-               /* Check the CDC descriptor class, subclass and protocol, break out if correct data interface found */\r
-               if ((DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Class    == CDC_DATA_CLASS)    &&\r
-                   (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).SubClass == CDC_DATA_SUBCLASS) &&\r
-                   (DESCRIPTOR_CAST(CurrentDescriptor, USB_Descriptor_Interface_t).Protocol == CDC_DATA_PROTOCOL))\r
+               USB_Descriptor_Interface_t* CurrentInterface = DESCRIPTOR_PCAST(CurrentDescriptor,\r
+                                                                               USB_Descriptor_Interface_t);\r
+       \r
+               if ((CurrentInterface->Class    == CDC_DATA_CLASS)    &&\r
+                   (CurrentInterface->SubClass == CDC_DATA_SUBCLASS) &&\r
+                       (CurrentInterface->Protocol == CDC_DATA_PROTOCOL))\r

                {\r
                        return DESCRIPTOR_SEARCH_Found;\r
                }\r
                {\r
                        return DESCRIPTOR_SEARCH_Found;\r
                }\r


@@ -174,15 +173,19 @@ static uint8_t DComp_CDC_Host_NextCDCDataInterface(void* CurrentDescriptor)
        return DESCRIPTOR_SEARCH_NotFound;\r
 }\r
 \r
        return DESCRIPTOR_SEARCH_NotFound;\r
 }\r
 \r

-static uint8_t DComp_CDC_Host_NextInterfaceCDCDataEndpoint(void* CurrentDescriptor)\r
+static uint8_t DComp_CDC_Host_NextCDCInterfaceEndpoint(void* const CurrentDescriptor)\r

 {\r
        if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)\r
        {\r
 {\r
        if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)\r
        {\r

-               uint8_t EndpointType = (DESCRIPTOR_CAST(CurrentDescriptor,\r
-                                                       USB_Descriptor_Endpoint_t).Attributes & EP_TYPE_MASK);\r
+               USB_Descriptor_Endpoint_t* CurrentEndpoint = DESCRIPTOR_PCAST(CurrentDescriptor,\r
+                                                                             USB_Descriptor_Endpoint_t);\r
+       \r
+               uint8_t EndpointType = (CurrentEndpoint->Attributes & EP_TYPE_MASK);\r

        \r
                if ((EndpointType == EP_TYPE_BULK) || (EndpointType == EP_TYPE_INTERRUPT))\r
        \r
                if ((EndpointType == EP_TYPE_BULK) || (EndpointType == EP_TYPE_INTERRUPT))\r

-                 return DESCRIPTOR_SEARCH_Found;\r
+               {\r
+                       return DESCRIPTOR_SEARCH_Found;\r
+               }\r

        }\r
        else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)\r
        {\r
        }\r
        else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)\r
        {\r


@@ -192,40 +195,231 @@ static uint8_t DComp_CDC_Host_NextInterfaceCDCDataEndpoint(void* CurrentDescript
        return DESCRIPTOR_SEARCH_NotFound;\r
 }\r
 \r
        return DESCRIPTOR_SEARCH_NotFound;\r
 }\r
 \r

-void CDC_Host_Task(void)\r
+void CDC_Host_USBTask(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)\r
+{\r
+       if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))\r
+         return;\r
+       \r
+       Pipe_SelectPipe(CDCInterfaceInfo->Config.NotificationPipeNumber);\r
+       Pipe_SetPipeToken(PIPE_TOKEN_IN);\r
+       Pipe_Unfreeze();\r
+\r
+       if (Pipe_IsINReceived())\r
+       {\r
+               USB_Request_Header_t Notification;\r
+               Pipe_Read_Stream_LE(&Notification, sizeof(USB_Request_Header_t), NO_STREAM_CALLBACK);\r
+               \r
+               if ((Notification.bRequest      == NOTIF_SerialState) &&\r
+                   (Notification.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE)))\r
+               {\r
+                       Pipe_Read_Stream_LE(&CDCInterfaceInfo->State.ControlLineStates.DeviceToHost,\r
+                                           sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost),\r
+                                           NO_STREAM_CALLBACK);\r
+                       \r
+               }\r
+\r
+               Pipe_ClearIN();\r
+\r
+               EVENT_CDC_Host_ControLineStateChanged(CDCInterfaceInfo);\r
+       }\r
+       \r
+       Pipe_Freeze();\r
+}\r
+\r
+uint8_t CDC_Host_SetLineEncoding(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)\r
+{\r
+       USB_ControlRequest = (USB_Request_Header_t)\r
+       {\r
+               .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),\r
+               .bRequest      = REQ_SetLineEncoding,\r
+               .wValue        = 0,\r
+               .wIndex        = CDCInterfaceInfo->State.ControlInterfaceNumber,\r
+               .wLength       = sizeof(CDCInterfaceInfo->State.LineEncoding),\r
+       };\r
+\r
+       Pipe_SelectPipe(PIPE_CONTROLPIPE);\r
+       \r
+       return USB_Host_SendControlRequest(&CDCInterfaceInfo->State.LineEncoding);\r
+}\r
+\r
+uint8_t CDC_Host_SendControlLineStateChange(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)\r
+{\r
+       USB_ControlRequest = (USB_Request_Header_t)\r
+       {\r
+               .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),\r
+               .bRequest      = REQ_SetControlLineState,\r
+               .wValue        = CDCInterfaceInfo->State.ControlLineStates.HostToDevice,\r
+               .wIndex        = CDCInterfaceInfo->State.ControlInterfaceNumber,\r
+               .wLength       = 0,\r
+       };\r
+\r
+       Pipe_SelectPipe(PIPE_CONTROLPIPE);\r
+       \r
+       return USB_Host_SendControlRequest(NULL);\r
+}\r
+\r
+uint8_t CDC_Host_SendString(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, char* Data, const uint16_t Length)\r

 {\r
 {\r

+       if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))\r
+         return PIPE_READYWAIT_DeviceDisconnected;\r
+\r

        uint8_t ErrorCode;\r
 \r
        uint8_t ErrorCode;\r
 \r

-       switch (USB_HostState)\r
+       Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber);    \r
+\r
+       Pipe_Unfreeze();\r
+       ErrorCode = Pipe_Write_Stream_LE(Data, Length, NO_STREAM_CALLBACK);\r
+       Pipe_Freeze();\r
+       \r
+       return ErrorCode;\r
+}\r
+\r
+uint8_t CDC_Host_SendByte(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, const uint8_t Data)\r
+{\r
+       if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))\r
+         return PIPE_READYWAIT_DeviceDisconnected;\r
+         \r
+       uint8_t ErrorCode;\r
+\r
+       Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber);    \r
+       Pipe_Unfreeze();\r
+       \r
+       if (!(Pipe_IsReadWriteAllowed()))\r

        {\r
        {\r

-               case HOST_STATE_Addressed:\r
-                       USB_ControlRequest = (USB_Request_Header_t)\r
-                               {\r
-                                       .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE),\r
-                                       .bRequest      = REQ_SetConfiguration,\r
-                                       .wValue        = 1,\r
-                                       .wIndex        = 0,\r
-                                       .wLength       = 0,\r
-                               };\r
+               Pipe_ClearOUT();\r

 \r
 \r

-                       Pipe_SelectPipe(PIPE_CONTROLPIPE);\r
+               if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)\r
+                 return ErrorCode;\r
+       }\r

 \r
 \r

-                       if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)\r
-                       {\r
-                               USB_HostState = HOST_STATE_Unattached;\r
-                       }\r
-                               \r
-                       USB_HostState = HOST_STATE_Configured;\r
-                       break;\r
-               case HOST_STATE_Configured:\r
-                       if ((ErrorCode = CDC_Host_ProcessConfigDescriptor()) != SuccessfulConfigRead)\r
-                       {\r
-                               USB_HostState = HOST_STATE_Unattached;\r
-                       }\r
-                               \r
-                       USB_HostState = HOST_STATE_Ready;\r
-                       break;\r
+       Pipe_Write_Byte(Data);  \r
+       Pipe_Freeze();\r
+       \r
+       return PIPE_READYWAIT_NoError;\r
+}\r
+\r
+uint16_t CDC_Host_BytesReceived(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)\r
+{\r
+       uint16_t BytesInPipe = 0;\r
+\r
+       if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))\r
+         return 0;\r
+       \r
+       Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber);\r
+       Pipe_SetPipeToken(PIPE_TOKEN_IN);\r
+       Pipe_Unfreeze();\r
+\r
+       if (Pipe_IsINReceived())\r
+       {\r
+               if (!(Pipe_BytesInPipe()))\r
+                 Pipe_ClearIN();\r
+               \r
+               BytesInPipe = Pipe_BytesInPipe();\r
+               Pipe_Freeze();\r
+               \r
+               return BytesInPipe;\r
+       }\r
+       else\r
+       {\r
+               Pipe_Freeze();\r
+               \r
+               return 0;\r

        }\r
 }\r
 \r
        }\r
 }\r
 \r

+uint8_t CDC_Host_ReceiveByte(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)\r
+{\r
+       uint8_t ReceivedByte = 0;\r
+\r
+       if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))\r
+         return 0;\r
+         \r
+       Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber);\r
+       Pipe_SetPipeToken(PIPE_TOKEN_IN);\r
+       Pipe_Unfreeze();\r
+\r
+       ReceivedByte = Pipe_Read_Byte();\r
+       \r
+       if (!(Pipe_BytesInPipe()))\r
+         Pipe_ClearIN();\r
+       \r
+       Pipe_Freeze();\r
+       \r
+       return ReceivedByte;\r
+}\r
+\r
+uint8_t CDC_Host_Flush(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)\r
+{\r
+       if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))\r
+         return PIPE_READYWAIT_DeviceDisconnected;\r
+         \r
+       uint8_t ErrorCode;\r
+\r
+       Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber);    \r
+       Pipe_Unfreeze();\r
+       \r
+       if (!(Pipe_BytesInPipe()))\r
+         return PIPE_READYWAIT_NoError;\r
+\r
+       bool BankFull = !(Pipe_IsReadWriteAllowed());\r
+\r
+       Pipe_ClearOUT();\r
+\r
+       if (BankFull)\r
+       {\r
+               if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)\r
+                 return ErrorCode;\r
+\r
+               Pipe_ClearOUT();\r
+       }\r
+\r
+       Pipe_Freeze();\r
+       \r
+       return PIPE_READYWAIT_NoError;\r
+}\r
+\r
+void CDC_Host_CreateStream(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, FILE* Stream)\r
+{\r
+       *Stream = (FILE)FDEV_SETUP_STREAM(CDC_Host_putchar, CDC_Host_getchar, _FDEV_SETUP_RW);\r
+       fdev_set_udata(Stream, CDCInterfaceInfo);\r
+}\r
+\r
+void CDC_Host_CreateBlockingStream(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, FILE* Stream)\r
+{\r
+       *Stream = (FILE)FDEV_SETUP_STREAM(CDC_Host_putchar, CDC_Host_getchar_Blocking, _FDEV_SETUP_RW);\r
+       fdev_set_udata(Stream, CDCInterfaceInfo);\r
+}\r
+\r
+static int CDC_Host_putchar(char c, FILE* Stream)\r
+{\r
+       return CDC_Host_SendByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream), c) ? _FDEV_ERR : 0;\r
+}\r
+\r
+static int CDC_Host_getchar(FILE* Stream)\r
+{\r
+       if (!(CDC_Host_BytesReceived((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream))))\r
+         return _FDEV_EOF;\r
+\r
+       return CDC_Host_ReceiveByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream));\r
+}\r
+\r
+static int CDC_Host_getchar_Blocking(FILE* Stream)\r
+{\r
+       while (!(CDC_Host_BytesReceived((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream))))\r
+       {\r
+               if (USB_HostState == HOST_STATE_Unattached)\r
+                 return _FDEV_EOF;\r
+\r
+               CDC_Host_USBTask((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream));\r
+               USB_USBTask();\r
+       }\r
+\r
+       return CDC_Host_ReceiveByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream));\r
+}\r
+\r
+void CDC_Host_Event_Stub(void)\r
+{\r
+\r
+}\r
+\r

 #endif\r
 #endif\r