+++ /dev/null
-/*
- 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_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,
- void* ConfigDescriptorData)
-{
- 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;
-
- while (!(DataINEndpoint) || !(DataOUTEndpoint))
- {
- if (!(MIDIInterface) ||
- USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
- DCOMP_MIDI_Host_NextMIDIStreamingDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
- {
- 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_DIR_MASK) == ENDPOINT_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)
- {
- Size = le16_to_cpu(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 = le16_to_cpu(DataOUTEndpoint->EndpointSize);
- EndpointAddress = DataOUTEndpoint->EndpointAddress;
- Token = PIPE_TOKEN_OUT;
- Type = EP_TYPE_BULK;
- DoubleBanked = MIDIInterfaceInfo->Config.DataOUTPipeDoubleBank;
-
- MIDIInterfaceInfo->State.DataOUTPipeSize = DataOUTEndpoint->EndpointSize;
- }
- else
- {
- continue;
- }
-
- 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)
-{
- 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 == 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)
-{
- 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) && !(Pipe_IsEndpointBound(Endpoint->EndpointAddress)))
- return DESCRIPTOR_SEARCH_Found;
- }
- else if (Header->Type == DTYPE_Interface)
- {
- return DESCRIPTOR_SEARCH_Fail;
- }
-
- 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) || !(MIDIInterfaceInfo->State.IsActive))
- return PIPE_RWSTREAM_DeviceDisconnected;
-
- uint8_t ErrorCode;
-
- Pipe_SelectPipe(MIDIInterfaceInfo->Config.DataOUTPipeNumber);
-
- if (Pipe_BytesInPipe())
- {
- Pipe_ClearOUT();
-
- if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)
- return ErrorCode;
- }
-
- return PIPE_READYWAIT_NoError;
-}
-
-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 ((ErrorCode = Pipe_Write_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NULL)) != PIPE_RWSTREAM_NoError)
- return ErrorCode;
-
- 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)
-{
- 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), NULL);
-
- if (!(Pipe_IsReadWriteAllowed()))
- Pipe_ClearIN();
-
- return true;
-}
-
-#endif
-
projects / pub / lufa.git / blobdiff