X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/071e02c6b6b4837fa9cf0b6d4c749994e02638d7..16f09ab50a6a931f0d8ec22a191288641e937eb1:/LUFA/Drivers/USB/Class/Host/MIDI.c diff --git a/LUFA/Drivers/USB/Class/Host/MIDI.c b/LUFA/Drivers/USB/Class/Host/MIDI.c index f5505959a..d376a3017 100644 --- a/LUFA/Drivers/USB/Class/Host/MIDI.c +++ b/LUFA/Drivers/USB/Class/Host/MIDI.c @@ -1,21 +1,21 @@ /* LUFA Library - Copyright (C) Dean Camera, 2010. - + Copyright (C) Dean Camera, 2011. + dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com + www.lufa-lib.org */ /* - Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) + Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com) - Permission to use, copy, modify, distribute, and sell this + 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 + 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 + 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 @@ -29,94 +29,134 @@ */ #define __INCLUDE_FROM_USB_DRIVER -#include "../../HighLevel/USBMode.h" +#include "../../Core/USBMode.h" + #if defined(USB_CAN_BE_HOST) -#define __INCLUDE_FROM_MIDI_CLASS_HOST_C #define __INCLUDE_FROM_MIDI_DRIVER +#define __INCLUDE_FROM_MIDI_HOST_C #include "MIDI.h" -uint8_t MIDI_Host_ConfigurePipes(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, uint16_t ConfigDescriptorSize, +uint8_t MIDI_Host_ConfigurePipes(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, + uint16_t ConfigDescriptorSize, void* ConfigDescriptorData) { - uint8_t FoundEndpoints = 0; + USB_Descriptor_Endpoint_t* DataINEndpoint = NULL; + USB_Descriptor_Endpoint_t* DataOUTEndpoint = NULL; + USB_Descriptor_Interface_t* MIDIInterface = NULL; memset(&MIDIInterfaceInfo->State, 0x00, sizeof(MIDIInterfaceInfo->State)); if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration) return MIDI_ENUMERROR_InvalidConfigDescriptor; - - if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, - DComp_MIDI_Host_NextMIDIStreamingInterface) != DESCRIPTOR_SEARCH_COMP_Found) - { - return MIDI_ENUMERROR_NoStreamingInterfaceFound; - } - - while (FoundEndpoints != (MIDI_FOUND_DATAPIPE_IN | MIDI_FOUND_DATAPIPE_OUT)) + + while (!(DataINEndpoint) || !(DataOUTEndpoint)) { - if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, - DComp_MIDI_Host_NextMIDIStreamingDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found) + if (!(MIDIInterface) || + USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, + DCOMP_MIDI_Host_NextMIDIStreamingDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found) { - return MIDI_ENUMERROR_EndpointsNotFound; + if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, + DCOMP_MIDI_Host_NextMIDIStreamingInterface) != DESCRIPTOR_SEARCH_COMP_Found) + { + return MIDI_ENUMERROR_NoCompatibleInterfaceFound; + } + + MIDIInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t); + + DataINEndpoint = NULL; + DataOUTEndpoint = NULL; + + continue; } - + USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t); if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN) + 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; + bool DoubleBanked; + + if (PipeNum == MIDIInterfaceInfo->Config.DataINPipeNumber) { - Pipe_ConfigurePipe(MIDIInterfaceInfo->Config.DataINPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_IN, - EndpointData->EndpointAddress, EndpointData->EndpointSize, - MIDIInterfaceInfo->Config.DataINPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE); - MIDIInterfaceInfo->State.DataINPipeSize = EndpointData->EndpointSize; - - FoundEndpoints |= MIDI_FOUND_DATAPIPE_IN; + Size = DataINEndpoint->EndpointSize; + EndpointAddress = DataINEndpoint->EndpointAddress; + Token = PIPE_TOKEN_IN; + Type = EP_TYPE_BULK; + DoubleBanked = MIDIInterfaceInfo->Config.DataINPipeDoubleBank; + + MIDIInterfaceInfo->State.DataINPipeSize = DataINEndpoint->EndpointSize; + } + else if (PipeNum == MIDIInterfaceInfo->Config.DataOUTPipeNumber) + { + Size = DataOUTEndpoint->EndpointSize; + EndpointAddress = DataOUTEndpoint->EndpointAddress; + Token = PIPE_TOKEN_OUT; + Type = EP_TYPE_BULK; + DoubleBanked = MIDIInterfaceInfo->Config.DataOUTPipeDoubleBank; + + MIDIInterfaceInfo->State.DataOUTPipeSize = DataOUTEndpoint->EndpointSize; } else { - Pipe_ConfigurePipe(MIDIInterfaceInfo->Config.DataOUTPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_OUT, - EndpointData->EndpointAddress, EndpointData->EndpointSize, - MIDIInterfaceInfo->Config.DataOUTPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE); - MIDIInterfaceInfo->State.DataOUTPipeSize = EndpointData->EndpointSize; + continue; + } - FoundEndpoints |= MIDI_FOUND_DATAPIPE_OUT; + if (!(Pipe_ConfigurePipe(PipeNum, Type, Token, EndpointAddress, Size, + DoubleBanked ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE))) + { + return MIDI_ENUMERROR_PipeConfigurationFailed; } } - + + MIDIInterfaceInfo->State.InterfaceNumber = MIDIInterface->InterfaceNumber; MIDIInterfaceInfo->State.IsActive = true; + return MIDI_ENUMERROR_NoError; } -static uint8_t DComp_MIDI_Host_NextMIDIStreamingInterface(void* const CurrentDescriptor) +static uint8_t DCOMP_MIDI_Host_NextMIDIStreamingInterface(void* const CurrentDescriptor) { - if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface) + USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t); + + if (Header->Type == DTYPE_Interface) { - USB_Descriptor_Interface_t* CurrentInterface = DESCRIPTOR_PCAST(CurrentDescriptor, - USB_Descriptor_Interface_t); + USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t); - if ((CurrentInterface->Class == MIDI_STREAMING_CLASS) && - (CurrentInterface->SubClass == MIDI_STREAMING_SUBCLASS) && - (CurrentInterface->Protocol == MIDI_STREAMING_PROTOCOL)) + if ((Interface->Class == AUDIO_CSCP_AudioClass) && + (Interface->SubClass == AUDIO_CSCP_MIDIStreamingSubclass) && + (Interface->Protocol == AUDIO_CSCP_StreamingProtocol)) { return DESCRIPTOR_SEARCH_Found; } } - + return DESCRIPTOR_SEARCH_NotFound; } -static uint8_t DComp_MIDI_Host_NextMIDIStreamingDataEndpoint(void* const CurrentDescriptor) +static uint8_t DCOMP_MIDI_Host_NextMIDIStreamingDataEndpoint(void* const CurrentDescriptor) { - if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint) + USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t); + + if (Header->Type == DTYPE_Endpoint) { - USB_Descriptor_Endpoint_t* CurrentEndpoint = DESCRIPTOR_PCAST(CurrentDescriptor, - USB_Descriptor_Endpoint_t); - - uint8_t EndpointType = (CurrentEndpoint->Attributes & EP_TYPE_MASK); - - if ((EndpointType == EP_TYPE_BULK) && !(Pipe_IsEndpointBound(CurrentEndpoint->EndpointAddress))) + 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) && !(Pipe_IsEndpointBound(Endpoint->EndpointAddress))) return DESCRIPTOR_SEARCH_Found; } - else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface) + else if (Header->Type == DTYPE_Interface) { return DESCRIPTOR_SEARCH_Fail; } @@ -124,11 +164,21 @@ static uint8_t DComp_MIDI_Host_NextMIDIStreamingDataEndpoint(void* const Current return DESCRIPTOR_SEARCH_NotFound; } +void MIDI_Host_USBTask(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo) +{ + if ((USB_HostState != HOST_STATE_Configured) || !(MIDIInterfaceInfo->State.IsActive)) + return; + + #if !defined(NO_CLASS_DRIVER_AUTOFLUSH) + MIDI_Host_Flush(MIDIInterfaceInfo); + #endif +} + uint8_t MIDI_Host_Flush(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo) { - if (USB_HostState != HOST_STATE_Configured) + if ((USB_HostState != HOST_STATE_Configured) || !(MIDIInterfaceInfo->State.IsActive)) return PIPE_RWSTREAM_DeviceDisconnected; - + uint8_t ErrorCode; Pipe_SelectPipe(MIDIInterfaceInfo->Config.DataOUTPipeNumber); @@ -144,43 +194,43 @@ uint8_t MIDI_Host_Flush(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo) return PIPE_READYWAIT_NoError; } -uint8_t MIDI_Host_SendEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event) +uint8_t MIDI_Host_SendEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, + MIDI_EventPacket_t* const Event) { if ((USB_HostState != HOST_STATE_Configured) || !(MIDIInterfaceInfo->State.IsActive)) return HOST_SENDCONTROL_DeviceDisconnected; - + + uint8_t ErrorCode; + Pipe_SelectPipe(MIDIInterfaceInfo->Config.DataOUTPipeNumber); - if (Pipe_IsReadWriteAllowed()) - { - uint8_t ErrorCode; + if ((ErrorCode = Pipe_Write_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NULL)) != PIPE_RWSTREAM_NoError) + return ErrorCode; - if ((ErrorCode = Pipe_Write_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError) - return ErrorCode; + if (!(Pipe_IsReadWriteAllowed())) + Pipe_ClearOUT(); - if (!(Pipe_IsReadWriteAllowed())) - Pipe_ClearOUT(); - } - return PIPE_RWSTREAM_NoError; } -bool MIDI_Host_ReceiveEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event) +bool MIDI_Host_ReceiveEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, + MIDI_EventPacket_t* const Event) { if ((USB_HostState != HOST_STATE_Configured) || !(MIDIInterfaceInfo->State.IsActive)) return HOST_SENDCONTROL_DeviceDisconnected; - + Pipe_SelectPipe(MIDIInterfaceInfo->Config.DataINPipeNumber); if (!(Pipe_IsReadWriteAllowed())) return false; - Pipe_Read_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK); + Pipe_Read_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NULL); if (!(Pipe_IsReadWriteAllowed())) Pipe_ClearIN(); - + return true; } #endif +