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464 lines
14 KiB
464 lines
14 KiB
/* |
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LUFA Library |
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Copyright (C) Dean Camera, 2010. |
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dean [at] fourwalledcubicle [dot] com |
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www.fourwalledcubicle.com |
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*/ |
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/* |
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Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) |
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Permission to use, copy, modify, distribute, and sell this |
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software and its documentation for any purpose is hereby granted |
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without fee, provided that the above copyright notice appear in |
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all copies and that both that the copyright notice and this |
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permission notice and warranty disclaimer appear in supporting |
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documentation, and that the name of the author not be used in |
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advertising or publicity pertaining to distribution of the |
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software without specific, written prior permission. |
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The author disclaim all warranties with regard to this |
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software, including all implied warranties of merchantability |
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and fitness. In no event shall the author be liable for any |
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special, indirect or consequential damages or any damages |
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whatsoever resulting from loss of use, data or profits, whether |
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in an action of contract, negligence or other tortious action, |
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arising out of or in connection with the use or performance of |
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this software. |
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*/ |
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#define __INCLUDE_FROM_USB_DRIVER |
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#include "../../HighLevel/USBMode.h" |
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#if defined(USB_CAN_BE_HOST) |
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#define __INCLUDE_FROM_CDC_CLASS_HOST_C |
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#define __INCLUDE_FROM_CDC_DRIVER |
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#include "CDC.h" |
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uint8_t CDC_Host_ConfigurePipes(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, |
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uint16_t ConfigDescriptorSize, |
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void* ConfigDescriptorData) |
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{ |
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uint8_t FoundEndpoints = 0; |
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memset(&CDCInterfaceInfo->State, 0x00, sizeof(CDCInterfaceInfo->State)); |
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if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration) |
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return CDC_ENUMERROR_InvalidConfigDescriptor; |
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if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, |
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DCOMP_CDC_Host_NextCDCControlInterface) != DESCRIPTOR_SEARCH_COMP_Found) |
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{ |
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return CDC_ENUMERROR_NoCDCInterfaceFound; |
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} |
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CDCInterfaceInfo->State.ControlInterfaceNumber = DESCRIPTOR_CAST(ConfigDescriptorData, USB_Descriptor_Interface_t).InterfaceNumber; |
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while (FoundEndpoints != (CDC_FOUND_NOTIFICATION_IN | CDC_FOUND_DATAPIPE_IN | CDC_FOUND_DATAPIPE_OUT)) |
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{ |
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if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, |
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DCOMP_CDC_Host_NextCDCInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found) |
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{ |
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if (FoundEndpoints & CDC_FOUND_NOTIFICATION_IN) |
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{ |
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if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, |
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DCOMP_CDC_Host_NextCDCDataInterface) != DESCRIPTOR_SEARCH_COMP_Found) |
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{ |
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return CDC_ENUMERROR_NoCDCInterfaceFound; |
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} |
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} |
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else |
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{ |
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FoundEndpoints = 0; |
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Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber); |
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Pipe_DisablePipe(); |
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Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber); |
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Pipe_DisablePipe(); |
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Pipe_SelectPipe(CDCInterfaceInfo->Config.NotificationPipeNumber); |
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Pipe_DisablePipe(); |
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if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, |
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DCOMP_CDC_Host_NextCDCControlInterface) != DESCRIPTOR_SEARCH_COMP_Found) |
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{ |
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return CDC_ENUMERROR_NoCDCInterfaceFound; |
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} |
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} |
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if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, |
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DCOMP_CDC_Host_NextCDCInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found) |
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{ |
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return CDC_ENUMERROR_EndpointsNotFound; |
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} |
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} |
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USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t); |
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if ((EndpointData->Attributes & EP_TYPE_MASK) == EP_TYPE_INTERRUPT) |
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{ |
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if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN) |
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{ |
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Pipe_ConfigurePipe(CDCInterfaceInfo->Config.NotificationPipeNumber, EP_TYPE_INTERRUPT, PIPE_TOKEN_IN, |
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EndpointData->EndpointAddress, EndpointData->EndpointSize, |
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CDCInterfaceInfo->Config.NotificationPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE); |
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CDCInterfaceInfo->State.NotificationPipeSize = EndpointData->EndpointSize; |
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Pipe_SetInterruptPeriod(EndpointData->PollingIntervalMS); |
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FoundEndpoints |= CDC_FOUND_NOTIFICATION_IN; |
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} |
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} |
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else |
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{ |
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if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN) |
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{ |
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Pipe_ConfigurePipe(CDCInterfaceInfo->Config.DataINPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_IN, |
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EndpointData->EndpointAddress, EndpointData->EndpointSize, |
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CDCInterfaceInfo->Config.DataINPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE); |
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CDCInterfaceInfo->State.DataINPipeSize = EndpointData->EndpointSize; |
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FoundEndpoints |= CDC_FOUND_DATAPIPE_IN; |
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} |
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else |
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{ |
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Pipe_ConfigurePipe(CDCInterfaceInfo->Config.DataOUTPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_OUT, |
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EndpointData->EndpointAddress, EndpointData->EndpointSize, |
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CDCInterfaceInfo->Config.DataOUTPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE); |
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CDCInterfaceInfo->State.DataOUTPipeSize = EndpointData->EndpointSize; |
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FoundEndpoints |= CDC_FOUND_DATAPIPE_OUT; |
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} |
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} |
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} |
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CDCInterfaceInfo->State.ControlLineStates.HostToDevice = (CDC_CONTROL_LINE_OUT_RTS | CDC_CONTROL_LINE_OUT_DTR); |
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CDCInterfaceInfo->State.ControlLineStates.DeviceToHost = (CDC_CONTROL_LINE_IN_DCD | CDC_CONTROL_LINE_IN_DSR); |
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CDCInterfaceInfo->State.IsActive = true; |
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return CDC_ENUMERROR_NoError; |
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} |
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static uint8_t DCOMP_CDC_Host_NextCDCControlInterface(void* const CurrentDescriptor) |
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{ |
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if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface) |
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{ |
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USB_Descriptor_Interface_t* CurrentInterface = DESCRIPTOR_PCAST(CurrentDescriptor, |
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USB_Descriptor_Interface_t); |
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if ((CurrentInterface->Class == CDC_CONTROL_CLASS) && |
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(CurrentInterface->SubClass == CDC_CONTROL_SUBCLASS) && |
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(CurrentInterface->Protocol == CDC_CONTROL_PROTOCOL)) |
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{ |
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return DESCRIPTOR_SEARCH_Found; |
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} |
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} |
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return DESCRIPTOR_SEARCH_NotFound; |
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} |
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static uint8_t DCOMP_CDC_Host_NextCDCDataInterface(void* const CurrentDescriptor) |
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{ |
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if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface) |
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{ |
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USB_Descriptor_Interface_t* CurrentInterface = DESCRIPTOR_PCAST(CurrentDescriptor, |
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USB_Descriptor_Interface_t); |
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if ((CurrentInterface->Class == CDC_DATA_CLASS) && |
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(CurrentInterface->SubClass == CDC_DATA_SUBCLASS) && |
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(CurrentInterface->Protocol == CDC_DATA_PROTOCOL)) |
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{ |
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return DESCRIPTOR_SEARCH_Found; |
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} |
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} |
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return DESCRIPTOR_SEARCH_NotFound; |
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} |
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static uint8_t DCOMP_CDC_Host_NextCDCInterfaceEndpoint(void* const CurrentDescriptor) |
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{ |
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if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint) |
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{ |
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USB_Descriptor_Endpoint_t* CurrentEndpoint = DESCRIPTOR_PCAST(CurrentDescriptor, |
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USB_Descriptor_Endpoint_t); |
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uint8_t EndpointType = (CurrentEndpoint->Attributes & EP_TYPE_MASK); |
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if (((EndpointType == EP_TYPE_BULK) || (EndpointType == EP_TYPE_INTERRUPT)) && |
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!(Pipe_IsEndpointBound(CurrentEndpoint->EndpointAddress))) |
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{ |
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return DESCRIPTOR_SEARCH_Found; |
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} |
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} |
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else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface) |
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{ |
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return DESCRIPTOR_SEARCH_Fail; |
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} |
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return DESCRIPTOR_SEARCH_NotFound; |
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} |
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void CDC_Host_USBTask(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) |
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{ |
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if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) |
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return; |
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Pipe_SelectPipe(CDCInterfaceInfo->Config.NotificationPipeNumber); |
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Pipe_Unfreeze(); |
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if (Pipe_IsINReceived()) |
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{ |
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USB_Request_Header_t Notification; |
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Pipe_Read_Stream_LE(&Notification, sizeof(USB_Request_Header_t), NO_STREAM_CALLBACK); |
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if ((Notification.bRequest == NOTIF_SerialState) && |
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(Notification.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))) |
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{ |
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Pipe_Read_Stream_LE(&CDCInterfaceInfo->State.ControlLineStates.DeviceToHost, |
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sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost), |
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NO_STREAM_CALLBACK); |
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Pipe_ClearIN(); |
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EVENT_CDC_Host_ControLineStateChanged(CDCInterfaceInfo); |
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} |
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else |
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{ |
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Pipe_ClearIN(); |
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} |
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} |
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Pipe_Freeze(); |
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CDC_Host_Flush(CDCInterfaceInfo); |
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} |
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uint8_t CDC_Host_SetLineEncoding(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) |
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{ |
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USB_ControlRequest = (USB_Request_Header_t) |
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{ |
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.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE), |
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.bRequest = REQ_SetLineEncoding, |
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.wValue = 0, |
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.wIndex = CDCInterfaceInfo->State.ControlInterfaceNumber, |
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.wLength = sizeof(CDCInterfaceInfo->State.LineEncoding), |
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}; |
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Pipe_SelectPipe(PIPE_CONTROLPIPE); |
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return USB_Host_SendControlRequest(&CDCInterfaceInfo->State.LineEncoding); |
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} |
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uint8_t CDC_Host_SendControlLineStateChange(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) |
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{ |
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USB_ControlRequest = (USB_Request_Header_t) |
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{ |
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.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE), |
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.bRequest = REQ_SetControlLineState, |
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.wValue = CDCInterfaceInfo->State.ControlLineStates.HostToDevice, |
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.wIndex = CDCInterfaceInfo->State.ControlInterfaceNumber, |
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.wLength = 0, |
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}; |
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Pipe_SelectPipe(PIPE_CONTROLPIPE); |
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return USB_Host_SendControlRequest(NULL); |
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} |
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uint8_t CDC_Host_SendBreak(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, |
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const uint8_t Duration) |
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{ |
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USB_ControlRequest = (USB_Request_Header_t) |
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{ |
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.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE), |
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.bRequest = REQ_SendBreak, |
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.wValue = Duration, |
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.wIndex = CDCInterfaceInfo->State.ControlInterfaceNumber, |
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.wLength = 0, |
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}; |
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Pipe_SelectPipe(PIPE_CONTROLPIPE); |
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return USB_Host_SendControlRequest(NULL); |
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} |
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uint8_t CDC_Host_SendString(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, |
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const char* const Data, |
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const uint16_t Length) |
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{ |
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if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) |
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return PIPE_READYWAIT_DeviceDisconnected; |
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uint8_t ErrorCode; |
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Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber); |
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Pipe_Unfreeze(); |
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ErrorCode = Pipe_Write_Stream_LE(Data, Length, NO_STREAM_CALLBACK); |
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Pipe_Freeze(); |
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return ErrorCode; |
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} |
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uint8_t CDC_Host_SendByte(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, |
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const uint8_t Data) |
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{ |
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if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) |
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return PIPE_READYWAIT_DeviceDisconnected; |
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uint8_t ErrorCode; |
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Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber); |
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Pipe_Unfreeze(); |
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if (!(Pipe_IsReadWriteAllowed())) |
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{ |
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Pipe_ClearOUT(); |
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if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError) |
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return ErrorCode; |
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} |
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Pipe_Write_Byte(Data); |
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Pipe_Freeze(); |
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return PIPE_READYWAIT_NoError; |
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} |
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uint16_t CDC_Host_BytesReceived(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) |
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{ |
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if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) |
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return 0; |
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Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber); |
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Pipe_Unfreeze(); |
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if (Pipe_IsINReceived()) |
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{ |
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if (!(Pipe_BytesInPipe())) |
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{ |
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Pipe_ClearIN(); |
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Pipe_Freeze(); |
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return 0; |
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} |
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else |
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{ |
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Pipe_Freeze(); |
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return Pipe_BytesInPipe(); |
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} |
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} |
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else |
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{ |
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Pipe_Freeze(); |
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return 0; |
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} |
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} |
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int16_t CDC_Host_ReceiveByte(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) |
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{ |
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if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) |
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return -1; |
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int16_t ReceivedByte = -1; |
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Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber); |
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Pipe_Unfreeze(); |
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if (Pipe_IsINReceived()) |
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{ |
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if (Pipe_BytesInPipe()) |
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ReceivedByte = Pipe_Read_Byte(); |
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if (!(Pipe_BytesInPipe())) |
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Pipe_ClearIN(); |
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} |
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Pipe_Freeze(); |
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return ReceivedByte; |
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} |
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uint8_t CDC_Host_Flush(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) |
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{ |
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if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive)) |
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return PIPE_READYWAIT_DeviceDisconnected; |
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uint8_t ErrorCode; |
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Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber); |
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Pipe_Unfreeze(); |
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if (!(Pipe_BytesInPipe())) |
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return PIPE_READYWAIT_NoError; |
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bool BankFull = !(Pipe_IsReadWriteAllowed()); |
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Pipe_ClearOUT(); |
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if (BankFull) |
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{ |
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if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError) |
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return ErrorCode; |
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Pipe_ClearOUT(); |
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} |
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Pipe_Freeze(); |
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return PIPE_READYWAIT_NoError; |
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} |
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void CDC_Host_CreateStream(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, |
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FILE* const Stream) |
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{ |
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*Stream = (FILE)FDEV_SETUP_STREAM(CDC_Host_putchar, CDC_Host_getchar, _FDEV_SETUP_RW); |
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fdev_set_udata(Stream, CDCInterfaceInfo); |
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} |
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void CDC_Host_CreateBlockingStream(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo, |
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FILE* const Stream) |
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{ |
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*Stream = (FILE)FDEV_SETUP_STREAM(CDC_Host_putchar, CDC_Host_getchar_Blocking, _FDEV_SETUP_RW); |
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fdev_set_udata(Stream, CDCInterfaceInfo); |
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} |
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static int CDC_Host_putchar(char c, |
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FILE* Stream) |
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{ |
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return CDC_Host_SendByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream), c) ? _FDEV_ERR : 0; |
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} |
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static int CDC_Host_getchar(FILE* Stream) |
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{ |
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int16_t ReceivedByte = CDC_Host_ReceiveByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream)); |
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if (ReceivedByte < 0) |
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return _FDEV_EOF; |
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return ReceivedByte; |
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} |
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static int CDC_Host_getchar_Blocking(FILE* Stream) |
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{ |
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int16_t ReceivedByte; |
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while ((ReceivedByte = CDC_Host_ReceiveByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream))) < 0) |
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{ |
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if (USB_HostState == HOST_STATE_Unattached) |
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return _FDEV_EOF; |
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CDC_Host_USBTask((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream)); |
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USB_USBTask(); |
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} |
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return ReceivedByte; |
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} |
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void CDC_Host_Event_Stub(void) |
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{ |
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} |
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#endif
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