X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/a3a04aa6719a891a1350179d5ac451c3e18c3bf2..0d5e30e69fdd10cc75f62e550c32ab4baf9b0005:/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 943cb7363..8ef6242e4 100644 --- a/LUFA/Drivers/USB/Class/Host/CDC.c +++ b/LUFA/Drivers/USB/Class/Host/CDC.c @@ -34,40 +34,31 @@ #define INCLUDE_FROM_CDC_CLASS_HOST_C #include "CDC.h" -static uint8_t CDC_Host_ProcessConfigDescriptor(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo) +uint8_t CDC_Host_ConfigurePipes(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, uint16_t ConfigDescriptorSize, + uint8_t* ConfigDescriptorData) { - uint8_t* ConfigDescriptorData; - uint16_t ConfigDescriptorSize; - uint8_t FoundEndpoints = 0; - - if (USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, NULL) != HOST_SENDCONTROL_Successful) - return CDC_ENUMERROR_ControlError; - - if (ConfigDescriptorSize > 512) - return CDC_ENUMERROR_DescriptorTooLarge; - - ConfigDescriptorData = alloca(ConfigDescriptorSize); + uint8_t FoundEndpoints = 0; + + memset(&CDCInterfaceInfo->State, 0x00, sizeof(CDCInterfaceInfo->State)); - USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData); - if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration) - return CDC_ENUMERROR_InvalidConfigDataReturned; + return CDC_ENUMERROR_InvalidConfigDescriptor; if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, DComp_CDC_Host_NextCDCControlInterface) != DESCRIPTOR_SEARCH_COMP_Found) { return CDC_ENUMERROR_NoCDCInterfaceFound; } + + CDCInterfaceInfo->State.ControlInterfaceNumber = DESCRIPTOR_CAST(ConfigDescriptorData, USB_Descriptor_Interface_t).InterfaceNumber; - while (FoundEndpoints != (CDC_FOUND_DATAPIPE_IN | CDC_FOUND_DATAPIPE_OUT | CDC_FOUND_DATAPIPE_NOTIFICATION)) + while (FoundEndpoints != (CDC_FOUND_NOTIFICATION_IN | CDC_FOUND_DATAPIPE_IN | CDC_FOUND_DATAPIPE_OUT)) { if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, - DComp_CDC_Host_NextInterfaceCDCDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found) + DComp_CDC_Host_NextCDCInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found) { - /* Check to see if the control interface's notification pipe has been found, if so search for the data interface */ - if (FoundEndpoints & CDC_FOUND_DATAPIPE_NOTIFICATION) + if (FoundEndpoints & CDC_FOUND_NOTIFICATION_IN) { - /* Get the next CDC data interface from the configuration descriptor (CDC class has two CDC interfaces) */ if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, DComp_CDC_Host_NextCDCDataInterface) != DESCRIPTOR_SEARCH_COMP_Found) { @@ -93,9 +84,9 @@ static uint8_t CDC_Host_ProcessConfigDescriptor(USB_ClassInfo_CDC_Host_t* CDCInt } if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, - DComp_CDC_Host_NextInterfaceCDCDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found) + DComp_CDC_Host_NextCDCInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found) { - return CDC_ENUMERROR_NoEndpointFound; + return CDC_ENUMERROR_EndpointsNotFound; } } @@ -111,7 +102,7 @@ static uint8_t CDC_Host_ProcessConfigDescriptor(USB_ClassInfo_CDC_Host_t* CDCInt Pipe_SetInterruptPeriod(EndpointData->PollingIntervalMS); - FoundEndpoints |= CDC_FOUND_DATAPIPE_NOTIFICATION; + FoundEndpoints |= CDC_FOUND_NOTIFICATION_IN; } } else @@ -135,6 +126,7 @@ static uint8_t CDC_Host_ProcessConfigDescriptor(USB_ClassInfo_CDC_Host_t* CDCInt } } + CDCInterfaceInfo->State.IsActive = true; return CDC_ENUMERROR_NoError; } @@ -174,17 +166,20 @@ static uint8_t DComp_CDC_Host_NextCDCDataInterface(void* CurrentDescriptor) return DESCRIPTOR_SEARCH_NotFound; } -static uint8_t DComp_CDC_Host_NextInterfaceCDCDataEndpoint(void* CurrentDescriptor) +static uint8_t DComp_CDC_Host_NextCDCInterfaceEndpoint(void* CurrentDescriptor) { if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint) { USB_Descriptor_Endpoint_t* CurrentEndpoint = DESCRIPTOR_PCAST(CurrentDescriptor, - USB_Descriptor_Endpoint_t) + USB_Descriptor_Endpoint_t); uint8_t EndpointType = (CurrentEndpoint->Attributes & EP_TYPE_MASK); - if ((EndpointType == EP_TYPE_BULK) || (EndpointType == EP_TYPE_INTERRUPT)) - return DESCRIPTOR_SEARCH_Found; + if (((EndpointType == EP_TYPE_BULK) || (EndpointType == EP_TYPE_INTERRUPT)) && + !(Pipe_IsEndpointBound(CurrentEndpoint->EndpointAddress))) + { + return DESCRIPTOR_SEARCH_Found; + } } else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface) { @@ -196,27 +191,147 @@ static uint8_t DComp_CDC_Host_NextInterfaceCDCDataEndpoint(void* CurrentDescript void CDC_Host_USBTask(USB_ClassInfo_CDC_Host_t* 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), NO_STREAM_CALLBACK); + + if ((Notification.bRequest == NOTIF_SerialState) && + (Notification.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))) + { + Pipe_Read_Stream_LE(&CDCInterfaceInfo->State.ControlLineStates.DeviceToHost, + sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost), + NO_STREAM_CALLBACK); + + } + + Pipe_ClearIN(); + + EVENT_CDC_Host_ControLineStateChanged(CDCInterfaceInfo); + } + + Pipe_Freeze(); +} + +uint8_t CDC_Host_SetLineEncoding(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo) +{ + USB_ControlRequest = (USB_Request_Header_t) + { + .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE), + .bRequest = 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* CDCInterfaceInfo) +{ + USB_ControlRequest = (USB_Request_Header_t) + { + .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE), + .bRequest = 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_SendString(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, char* Data, uint16_t Length) +{ + if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) + return PIPE_READYWAIT_NoError; + + uint8_t ErrorCode; + + Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber); + Pipe_Unfreeze(); + ErrorCode = Pipe_Write_Stream_LE(Data, Length, NO_STREAM_CALLBACK); + Pipe_Freeze(); + + return ErrorCode; +} + +uint8_t CDC_Host_SendByte(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, uint8_t Data) +{ + if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) + return PIPE_READYWAIT_NoError;; + uint8_t ErrorCode; - switch (USB_HostState) + Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber); + Pipe_Unfreeze(); + + if (!(Pipe_IsReadWriteAllowed())) { - case HOST_STATE_Addressed: - if ((ErrorCode = CDC_Host_ProcessConfigDescriptor(CDCInterfaceInfo)) != CDC_ENUMERROR_NoError) - { - USB_HostState = HOST_STATE_Unattached; - } + Pipe_ClearOUT(); - if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful) - { - USB_HostState = HOST_STATE_Unattached; - } - - USB_HostState = HOST_STATE_Configured; - break; - case HOST_STATE_Configured: - USB_HostState = HOST_STATE_Ready; - break; + if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError) + return ErrorCode; } + + Pipe_Write_Byte(Data); + Pipe_Freeze(); + + return PIPE_READYWAIT_NoError; +} + +uint16_t CDC_Host_BytesReceived(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo) +{ + uint16_t BytesInPipe = 0; + + if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) + return BytesInPipe; + + Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber); + Pipe_Unfreeze(); + + if (Pipe_IsINReceived() && !(Pipe_BytesInPipe())) + Pipe_ClearIN(); + + BytesInPipe = Pipe_BytesInPipe(); + Pipe_Freeze(); + + return BytesInPipe; +} + +uint8_t CDC_Host_ReceiveByte(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo) +{ + uint8_t ReceivedByte = 0; + + if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) + return ReceivedByte; + + Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber); + Pipe_Unfreeze(); + + ReceivedByte = Pipe_Read_Byte(); + + if (!(Pipe_BytesInPipe())) + Pipe_ClearIN(); + + Pipe_Freeze(); + + return ReceivedByte; +} + +void CDC_Host_Event_Stub(void) +{ + } #endif