-/*\r
- LUFA Library\r
- Copyright (C) Dean Camera, 2009.\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
- software without specific, written prior permission.\r
-\r
- The author disclaim all warranties with regard to this\r
- software, including all implied warranties of merchantability\r
- and fitness. In no event shall the author be liable for any\r
- special, indirect or consequential damages or any damages\r
- whatsoever resulting from loss of use, data or profits, whether\r
- in an action of contract, negligence or other tortious action,\r
- arising out of or in connection with the use or performance of\r
- this software.\r
-*/\r
-\r
-#include "../../HighLevel/USBMode.h"\r
-#if defined(USB_CAN_BE_HOST)\r
-\r
-#define INCLUDE_FROM_CDC_CLASS_HOST_C\r
-#include "CDC.h"\r
-\r
-uint8_t CDC_Host_ConfigurePipes(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, uint16_t ConfigDescriptorSize,\r
- uint8_t* ConfigDescriptorData)\r
-{\r
- uint8_t FoundEndpoints = 0;\r
-\r
- memset(&CDCInterfaceInfo->State, 0x00, sizeof(CDCInterfaceInfo->State));\r
-\r
- if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)\r
- return CDC_ENUMERROR_InvalidConfigDescriptor;\r
- \r
- if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,\r
- DComp_CDC_Host_NextCDCControlInterface) != DESCRIPTOR_SEARCH_COMP_Found)\r
- {\r
- return CDC_ENUMERROR_NoCDCInterfaceFound;\r
- }\r
- \r
- CDCInterfaceInfo->State.ControlInterfaceNumber =\r
-#if defined(USE_NONSTANDARD_DESCRIPTOR_NAMES)\r
- DESCRIPTOR_CAST(ConfigDescriptorData, USB_Descriptor_Interface_t).InterfaceNumber;\r
-#else\r
- DESCRIPTOR_CAST(ConfigDescriptorData, USB_Descriptor_Interface_t).bInterfaceNumber;\r
-#endif\r
-\r
- while (FoundEndpoints != (CDC_FOUND_NOTIFICATION_IN | CDC_FOUND_DATAPIPE_IN | CDC_FOUND_DATAPIPE_OUT))\r
- {\r
- if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,\r
- DComp_CDC_Host_NextCDCInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)\r
- {\r
- if (FoundEndpoints & CDC_FOUND_NOTIFICATION_IN)\r
- {\r
- if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, \r
- DComp_CDC_Host_NextCDCDataInterface) != DESCRIPTOR_SEARCH_COMP_Found)\r
- {\r
- return CDC_ENUMERROR_NoCDCInterfaceFound;\r
- }\r
- }\r
- else\r
- {\r
- FoundEndpoints = 0;\r
-\r
- Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber);\r
- Pipe_DisablePipe();\r
- Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber);\r
- Pipe_DisablePipe();\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
- return CDC_ENUMERROR_NoCDCInterfaceFound;\r
- }\r
- }\r
-\r
- if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,\r
- DComp_CDC_Host_NextCDCInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)\r
- {\r
- return CDC_ENUMERROR_EndpointsNotFound;\r
- }\r
- }\r
- \r
- USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);\r
-\r
- if ((EndpointData->Attributes & EP_TYPE_MASK) == EP_TYPE_INTERRUPT)\r
- {\r
- if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)\r
- { \r
- Pipe_ConfigurePipe(CDCInterfaceInfo->Config.NotificationPipeNumber, EP_TYPE_INTERRUPT, PIPE_TOKEN_IN,\r
- EndpointData->EndpointAddress, EndpointData->EndpointSize, PIPE_BANK_SINGLE);\r
- CDCInterfaceInfo->State.NotificationPipeSize = EndpointData->EndpointSize;\r
-\r
- Pipe_SetInterruptPeriod(EndpointData->PollingIntervalMS);\r
- \r
- FoundEndpoints |= CDC_FOUND_NOTIFICATION_IN;\r
- }\r
- }\r
- else\r
- {\r
- if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)\r
- {\r
- Pipe_ConfigurePipe(CDCInterfaceInfo->Config.DataINPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_IN,\r
- EndpointData->EndpointAddress, EndpointData->EndpointSize, PIPE_BANK_SINGLE);\r
- CDCInterfaceInfo->State.DataINPipeSize = EndpointData->EndpointSize;\r
-\r
- FoundEndpoints |= CDC_FOUND_DATAPIPE_IN;\r
- }\r
- else\r
- {\r
- Pipe_ConfigurePipe(CDCInterfaceInfo->Config.DataOUTPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_OUT,\r
- EndpointData->EndpointAddress, EndpointData->EndpointSize, PIPE_BANK_SINGLE);\r
- CDCInterfaceInfo->State.DataOUTPipeSize = EndpointData->EndpointSize;\r
- \r
- FoundEndpoints |= CDC_FOUND_DATAPIPE_OUT;\r
- }\r
- }\r
- }\r
-\r
- CDCInterfaceInfo->State.Active = true;\r
- return CDC_ENUMERROR_NoError;\r
-}\r
-\r
-static uint8_t DComp_CDC_Host_NextCDCControlInterface(void* CurrentDescriptor)\r
-{\r
- if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)\r
- {\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
- \r
- return DESCRIPTOR_SEARCH_NotFound;\r
-}\r
-\r
-static uint8_t DComp_CDC_Host_NextCDCDataInterface(void* CurrentDescriptor)\r
-{\r
- if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)\r
- {\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
- \r
- return DESCRIPTOR_SEARCH_NotFound;\r
-}\r
-\r
-static uint8_t DComp_CDC_Host_NextCDCInterfaceEndpoint(void* CurrentDescriptor)\r
-{\r
- if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)\r
- {\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
- !(Pipe_IsEndpointBound(CurrentEndpoint->EndpointAddress)))\r
- {\r
- return DESCRIPTOR_SEARCH_Found;\r
- }\r
- }\r
- else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)\r
- {\r
- return DESCRIPTOR_SEARCH_Fail;\r
- }\r
-\r
- return DESCRIPTOR_SEARCH_NotFound;\r
-}\r
-\r
-void CDC_Host_USBTask(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo)\r
-{\r
- if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.Active))\r
- return;\r
- \r
- Pipe_SelectPipe(CDCInterfaceInfo->Config.NotificationPipeNumber); \r
- Pipe_Unfreeze();\r
-\r
- if (Pipe_IsINReceived())\r
- {\r
- USB_Request_Header_t Notification;\r
- Pipe_Read_Stream_LE(&Notification, sizeof(Notification), 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* 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* 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* CDCInterfaceInfo, char* Data, uint16_t Length)\r
-{\r
- if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.Active))\r
- return;\r
-\r
- uint8_t ErrorCode;\r
-\r
- Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber); \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* CDCInterfaceInfo, uint8_t Data)\r
-{\r
- if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.Active))\r
- return;\r
- \r
- uint8_t ErrorCode = PIPE_READYWAIT_NoError;\r
-\r
- Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber); \r
- Pipe_Unfreeze();\r
- \r
- if (!(Pipe_IsReadWriteAllowed()))\r
- {\r
- Pipe_ClearOUT();\r
- ErrorCode = Pipe_WaitUntilReady();\r
- }\r
-\r
- Pipe_Write_Byte(Data); \r
- Pipe_Freeze();\r
- \r
- return ErrorCode;\r
-}\r
-\r
-uint16_t CDC_Host_BytesReceived(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo)\r
-{\r
- uint16_t BytesInPipe = 0;\r
-\r
- if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.Active))\r
- return BytesInPipe;\r
- \r
- Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber); \r
- Pipe_Unfreeze();\r
-\r
- if (Pipe_IsINReceived() && !(Pipe_BytesInPipe()))\r
- Pipe_ClearIN();\r
- \r
- BytesInPipe = Pipe_BytesInPipe();\r
- Pipe_Freeze();\r
- \r
- return BytesInPipe;\r
-}\r
-\r
-uint8_t CDC_Host_ReceiveByte(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo)\r
-{\r
- uint8_t ReceivedByte = 0;\r
-\r
- if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.Active))\r
- return ReceivedByte;\r
- \r
- Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber); \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
-void CDC_Host_Event_Stub(void)\r
-{\r
-\r
-}\r
-\r
-#endif\r
+/*
+ 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_HOST)
+
+#define __INCLUDE_FROM_CDC_DRIVER
+#define __INCLUDE_FROM_CDC_HOST_C
+#include "CDC.h"
+
+uint8_t CDC_Host_ConfigurePipes(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
+ uint16_t ConfigDescriptorSize,
+ void* ConfigDescriptorData)
+{
+ USB_Descriptor_Endpoint_t* DataINEndpoint = NULL;
+ USB_Descriptor_Endpoint_t* DataOUTEndpoint = NULL;
+ USB_Descriptor_Endpoint_t* NotificationEndpoint = NULL;
+ USB_Descriptor_Interface_t* CDCControlInterface = NULL;
+
+ memset(&CDCInterfaceInfo->State, 0x00, sizeof(CDCInterfaceInfo->State));
+
+ if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
+ return CDC_ENUMERROR_InvalidConfigDescriptor;
+
+ while (!(DataINEndpoint) || !(DataOUTEndpoint) || !(NotificationEndpoint))
+ {
+ if (!(CDCControlInterface) ||
+ USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
+ DCOMP_CDC_Host_NextCDCInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
+ {
+ if (NotificationEndpoint)
+ {
+ if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
+ DCOMP_CDC_Host_NextCDCDataInterface) != DESCRIPTOR_SEARCH_COMP_Found)
+ {
+ return CDC_ENUMERROR_NoCompatibleInterfaceFound;
+ }
+
+ DataINEndpoint = NULL;
+ DataOUTEndpoint = NULL;
+ }
+ else
+ {
+ if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
+ DCOMP_CDC_Host_NextCDCControlInterface) != DESCRIPTOR_SEARCH_COMP_Found)
+ {
+ return CDC_ENUMERROR_NoCompatibleInterfaceFound;
+ }
+
+ CDCControlInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t);
+
+ NotificationEndpoint = NULL;
+ }
+
+ continue;
+ }
+
+ USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);
+
+ if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
+ {
+ if ((EndpointData->Attributes & EP_TYPE_MASK) == EP_TYPE_INTERRUPT)
+ NotificationEndpoint = EndpointData;
+ else
+ DataINEndpoint = EndpointData;
+ }
+ else
+ {
+ DataOUTEndpoint = EndpointData;
+ }
+ }
+
+ for (uint8_t PipeNum = 1; PipeNum < PIPE_TOTAL_PIPES; PipeNum++)
+ {
+ uint16_t Size;
+ uint8_t Type;
+ uint8_t Token;
+ uint8_t EndpointAddress;
+ uint8_t InterruptPeriod;
+ bool DoubleBanked;
+
+ if (PipeNum == CDCInterfaceInfo->Config.DataINPipeNumber)
+ {
+ Size = le16_to_cpu(DataINEndpoint->EndpointSize);
+ EndpointAddress = DataINEndpoint->EndpointAddress;
+ Token = PIPE_TOKEN_IN;
+ Type = EP_TYPE_BULK;
+ DoubleBanked = CDCInterfaceInfo->Config.DataINPipeDoubleBank;
+ InterruptPeriod = 0;
+
+ CDCInterfaceInfo->State.DataINPipeSize = DataINEndpoint->EndpointSize;
+ }
+ else if (PipeNum == CDCInterfaceInfo->Config.DataOUTPipeNumber)
+ {
+ Size = le16_to_cpu(DataOUTEndpoint->EndpointSize);
+ EndpointAddress = DataOUTEndpoint->EndpointAddress;
+ Token = PIPE_TOKEN_OUT;
+ Type = EP_TYPE_BULK;
+ DoubleBanked = CDCInterfaceInfo->Config.DataOUTPipeDoubleBank;
+ InterruptPeriod = 0;
+
+ CDCInterfaceInfo->State.DataOUTPipeSize = DataOUTEndpoint->EndpointSize;
+ }
+ else if (PipeNum == CDCInterfaceInfo->Config.NotificationPipeNumber)
+ {
+ Size = le16_to_cpu(NotificationEndpoint->EndpointSize);
+ EndpointAddress = NotificationEndpoint->EndpointAddress;
+ Token = PIPE_TOKEN_IN;
+ Type = EP_TYPE_INTERRUPT;
+ DoubleBanked = CDCInterfaceInfo->Config.NotificationPipeDoubleBank;
+ InterruptPeriod = NotificationEndpoint->PollingIntervalMS;
+
+ CDCInterfaceInfo->State.NotificationPipeSize = NotificationEndpoint->EndpointSize;
+ }
+ else
+ {
+ continue;
+ }
+
+ if (!(Pipe_ConfigurePipe(PipeNum, Type, Token, EndpointAddress, Size,
+ DoubleBanked ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE)))
+ {
+ return CDC_ENUMERROR_PipeConfigurationFailed;
+ }
+
+ if (InterruptPeriod)
+ Pipe_SetInterruptPeriod(InterruptPeriod);
+ }
+
+ CDCInterfaceInfo->State.ControlInterfaceNumber = CDCControlInterface->InterfaceNumber;
+ CDCInterfaceInfo->State.ControlLineStates.HostToDevice = (CDC_CONTROL_LINE_OUT_RTS | CDC_CONTROL_LINE_OUT_DTR);
+ CDCInterfaceInfo->State.ControlLineStates.DeviceToHost = (CDC_CONTROL_LINE_IN_DCD | CDC_CONTROL_LINE_IN_DSR);
+ CDCInterfaceInfo->State.IsActive = true;
+
+ return CDC_ENUMERROR_NoError;
+}
+
+static uint8_t DCOMP_CDC_Host_NextCDCControlInterface(void* const CurrentDescriptor)
+{
+ USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
+
+ if (Header->Type == DTYPE_Interface)
+ {
+ USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t);
+
+ if ((Interface->Class == CDC_CSCP_CDCClass) &&
+ (Interface->SubClass == CDC_CSCP_ACMSubclass) &&
+ (Interface->Protocol == CDC_CSCP_ATCommandProtocol))
+ {
+ return DESCRIPTOR_SEARCH_Found;
+ }
+ }
+
+ return DESCRIPTOR_SEARCH_NotFound;
+}
+
+static uint8_t DCOMP_CDC_Host_NextCDCDataInterface(void* const CurrentDescriptor)
+{
+ USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
+
+ if (Header->Type == DTYPE_Interface)
+ {
+ USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t);
+
+ if ((Interface->Class == CDC_CSCP_CDCDataClass) &&
+ (Interface->SubClass == CDC_CSCP_NoDataSubclass) &&
+ (Interface->Protocol == CDC_CSCP_NoDataProtocol))
+ {
+ return DESCRIPTOR_SEARCH_Found;
+ }
+ }
+
+ return DESCRIPTOR_SEARCH_NotFound;
+}
+
+static uint8_t DCOMP_CDC_Host_NextCDCInterfaceEndpoint(void* const CurrentDescriptor)
+{
+ USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
+
+ if (Header->Type == DTYPE_Endpoint)
+ {
+ USB_Descriptor_Endpoint_t* Endpoint = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Endpoint_t);
+
+ uint8_t EndpointType = (Endpoint->Attributes & EP_TYPE_MASK);
+
+ if (((EndpointType == EP_TYPE_BULK) || (EndpointType == EP_TYPE_INTERRUPT)) &&
+ !(Pipe_IsEndpointBound(Endpoint->EndpointAddress)))
+ {
+ return DESCRIPTOR_SEARCH_Found;
+ }
+ }
+ else if (Header->Type == DTYPE_Interface)
+ {
+ return DESCRIPTOR_SEARCH_Fail;
+ }
+
+ return DESCRIPTOR_SEARCH_NotFound;
+}
+
+void CDC_Host_USBTask(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)
+{
+ if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
+ return;
+
+ Pipe_SelectPipe(CDCInterfaceInfo->Config.NotificationPipeNumber);
+ Pipe_Unfreeze();
+
+ if (Pipe_IsINReceived())
+ {
+ USB_Request_Header_t Notification;
+ Pipe_Read_Stream_LE(&Notification, sizeof(USB_Request_Header_t), NULL);
+
+ if ((Notification.bRequest == CDC_NOTIF_SerialState) &&
+ (Notification.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE)))
+ {
+ Pipe_Read_Stream_LE(&CDCInterfaceInfo->State.ControlLineStates.DeviceToHost,
+ sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost),
+ NULL);
+
+ Pipe_ClearIN();
+
+ EVENT_CDC_Host_ControLineStateChanged(CDCInterfaceInfo);
+ }
+ else
+ {
+ Pipe_ClearIN();
+ }
+ }
+
+ Pipe_Freeze();
+
+ #if !defined(NO_CLASS_DRIVER_AUTOFLUSH)
+ CDC_Host_Flush(CDCInterfaceInfo);
+ #endif
+}
+
+uint8_t CDC_Host_SetLineEncoding(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)
+{
+ USB_ControlRequest = (USB_Request_Header_t)
+ {
+ .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
+ .bRequest = CDC_REQ_SetLineEncoding,
+ .wValue = 0,
+ .wIndex = CDCInterfaceInfo->State.ControlInterfaceNumber,
+ .wLength = sizeof(CDCInterfaceInfo->State.LineEncoding),
+ };
+
+ Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+ return USB_Host_SendControlRequest(&CDCInterfaceInfo->State.LineEncoding);
+}
+
+uint8_t CDC_Host_SendControlLineStateChange(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)
+{
+ USB_ControlRequest = (USB_Request_Header_t)
+ {
+ .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
+ .bRequest = CDC_REQ_SetControlLineState,
+ .wValue = CDCInterfaceInfo->State.ControlLineStates.HostToDevice,
+ .wIndex = CDCInterfaceInfo->State.ControlInterfaceNumber,
+ .wLength = 0,
+ };
+
+ Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+ return USB_Host_SendControlRequest(NULL);
+}
+
+uint8_t CDC_Host_SendBreak(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
+ const uint8_t Duration)
+{
+ USB_ControlRequest = (USB_Request_Header_t)
+ {
+ .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
+ .bRequest = CDC_REQ_SendBreak,
+ .wValue = Duration,
+ .wIndex = CDCInterfaceInfo->State.ControlInterfaceNumber,
+ .wLength = 0,
+ };
+
+ Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+ return USB_Host_SendControlRequest(NULL);
+}
+
+uint8_t CDC_Host_SendData(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
+ const uint8_t* const Buffer,
+ const uint16_t Length)
+{
+ if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
+ return PIPE_READYWAIT_DeviceDisconnected;
+
+ uint8_t ErrorCode;
+
+ Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber);
+
+ Pipe_Unfreeze();
+ ErrorCode = Pipe_Write_Stream_LE(Buffer, Length, NULL);
+ Pipe_Freeze();
+
+ return ErrorCode;
+}
+
+uint8_t CDC_Host_SendString(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
+ const char* const String)
+{
+ if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
+ return PIPE_READYWAIT_DeviceDisconnected;
+
+ uint8_t ErrorCode;
+
+ Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber);
+
+ Pipe_Unfreeze();
+ ErrorCode = Pipe_Write_Stream_LE(String, strlen(String), NULL);
+ Pipe_Freeze();
+
+ return ErrorCode;
+}
+
+uint8_t CDC_Host_SendByte(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
+ const uint8_t Data)
+{
+ if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
+ return PIPE_READYWAIT_DeviceDisconnected;
+
+ uint8_t ErrorCode;
+
+ Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber);
+ Pipe_Unfreeze();
+
+ if (!(Pipe_IsReadWriteAllowed()))
+ {
+ Pipe_ClearOUT();
+
+ if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)
+ return ErrorCode;
+ }
+
+ Pipe_Write_8(Data);
+ Pipe_Freeze();
+
+ return PIPE_READYWAIT_NoError;
+}
+
+uint16_t CDC_Host_BytesReceived(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)
+{
+ if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
+ return 0;
+
+ Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber);
+ Pipe_Unfreeze();
+
+ if (Pipe_IsINReceived())
+ {
+ if (!(Pipe_BytesInPipe()))
+ {
+ Pipe_ClearIN();
+ Pipe_Freeze();
+ return 0;
+ }
+ else
+ {
+ Pipe_Freeze();
+ return Pipe_BytesInPipe();
+ }
+ }
+ else
+ {
+ Pipe_Freeze();
+
+ return 0;
+ }
+}
+
+int16_t CDC_Host_ReceiveByte(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)
+{
+ if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
+ return -1;
+
+ int16_t ReceivedByte = -1;
+
+ Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber);
+ Pipe_Unfreeze();
+
+ if (Pipe_IsINReceived())
+ {
+ if (Pipe_BytesInPipe())
+ ReceivedByte = Pipe_Read_8();
+
+ if (!(Pipe_BytesInPipe()))
+ Pipe_ClearIN();
+ }
+
+ Pipe_Freeze();
+
+ return ReceivedByte;
+}
+
+uint8_t CDC_Host_Flush(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)
+{
+ if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
+ return PIPE_READYWAIT_DeviceDisconnected;
+
+ uint8_t ErrorCode;
+
+ Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber);
+ Pipe_Unfreeze();
+
+ if (!(Pipe_BytesInPipe()))
+ return PIPE_READYWAIT_NoError;
+
+ bool BankFull = !(Pipe_IsReadWriteAllowed());
+
+ Pipe_ClearOUT();
+
+ if (BankFull)
+ {
+ if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)
+ return ErrorCode;
+
+ Pipe_ClearOUT();
+ }
+
+ Pipe_Freeze();
+
+ return PIPE_READYWAIT_NoError;
+}
+
+#if defined(FDEV_SETUP_STREAM)
+void CDC_Host_CreateStream(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
+ FILE* const Stream)
+{
+ *Stream = (FILE)FDEV_SETUP_STREAM(CDC_Host_putchar, CDC_Host_getchar, _FDEV_SETUP_RW);
+ fdev_set_udata(Stream, CDCInterfaceInfo);
+}
+
+void CDC_Host_CreateBlockingStream(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
+ FILE* const Stream)
+{
+ *Stream = (FILE)FDEV_SETUP_STREAM(CDC_Host_putchar, CDC_Host_getchar_Blocking, _FDEV_SETUP_RW);
+ fdev_set_udata(Stream, CDCInterfaceInfo);
+}
+
+static int CDC_Host_putchar(char c,
+ FILE* Stream)
+{
+ return CDC_Host_SendByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream), c) ? _FDEV_ERR : 0;
+}
+
+static int CDC_Host_getchar(FILE* Stream)
+{
+ int16_t ReceivedByte = CDC_Host_ReceiveByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream));
+
+ if (ReceivedByte < 0)
+ return _FDEV_EOF;
+
+ return ReceivedByte;
+}
+
+static int CDC_Host_getchar_Blocking(FILE* Stream)
+{
+ int16_t ReceivedByte;
+
+ while ((ReceivedByte = CDC_Host_ReceiveByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream))) < 0)
+ {
+ if (USB_HostState == HOST_STATE_Unattached)
+ return _FDEV_EOF;
+
+ CDC_Host_USBTask((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream));
+ USB_USBTask();
+ }
+
+ return ReceivedByte;
+}
+#endif
+
+void CDC_Host_Event_Stub(void)
+{
+
+}
+
+#endif
+
projects / pub / USBasp.git / blobdiff