diff options
Diffstat (limited to 'LUFA/Drivers/USB/Class/Host/MIDI.c')
| -rw-r--r-- | LUFA/Drivers/USB/Class/Host/MIDI.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/Class/Host/MIDI.c b/LUFA/Drivers/USB/Class/Host/MIDI.c new file mode 100644 index 000000000..1cdfa498b --- /dev/null +++ b/LUFA/Drivers/USB/Class/Host/MIDI.c @@ -0,0 +1,164 @@ +/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2009.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, and distribute this software
+ and its documentation for any purpose and without fee is hereby
+ granted, 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.
+*/
+
+#include "../../HighLevel/USBMode.h"
+#if defined(USB_CAN_BE_HOST)
+
+#define INCLUDE_FROM_MIDI_CLASS_HOST_C
+#include "MIDI.h"
+
+uint8_t MIDI_Host_ConfigurePipes(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, uint16_t ConfigDescriptorSize,
+ uint8_t* ConfigDescriptorData)
+{
+ uint8_t FoundEndpoints = 0;
+
+ 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))
+ {
+ if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
+ DComp_MIDI_Host_NextMIDIStreamingDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
+ {
+ return MIDI_ENUMERROR_EndpointsNotFound;
+ }
+
+ USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);
+
+ if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
+ {
+ Pipe_ConfigurePipe(MIDIInterfaceInfo->Config.DataINPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_IN,
+ EndpointData->EndpointAddress, EndpointData->EndpointSize, PIPE_BANK_SINGLE);
+ MIDIInterfaceInfo->State.DataINPipeSize = EndpointData->EndpointSize;
+
+ FoundEndpoints |= MIDI_FOUND_DATAPIPE_IN;
+ }
+ else
+ {
+ Pipe_ConfigurePipe(MIDIInterfaceInfo->Config.DataOUTPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_OUT,
+ EndpointData->EndpointAddress, EndpointData->EndpointSize, PIPE_BANK_SINGLE);
+ MIDIInterfaceInfo->State.DataOUTPipeSize = EndpointData->EndpointSize;
+
+ FoundEndpoints |= MIDI_FOUND_DATAPIPE_OUT;
+ }
+ }
+
+ MIDIInterfaceInfo->State.IsActive = true;
+ return MIDI_ENUMERROR_NoError;
+}
+
+static uint8_t DComp_MIDI_Host_NextMIDIStreamingInterface(void* CurrentDescriptor)
+{
+ if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
+ {
+ USB_Descriptor_Interface_t* CurrentInterface = DESCRIPTOR_PCAST(CurrentDescriptor,
+ USB_Descriptor_Interface_t);
+
+ if ((CurrentInterface->Class == MIDI_STREAMING_CLASS) &&
+ (CurrentInterface->SubClass == MIDI_STREAMING_SUBCLASS) &&
+ (CurrentInterface->Protocol == MIDI_STREAMING_PROTOCOL))
+ {
+ return DESCRIPTOR_SEARCH_Found;
+ }
+ }
+
+ return DESCRIPTOR_SEARCH_NotFound;
+}
+
+static uint8_t DComp_MIDI_Host_NextMIDIStreamingDataEndpoint(void* CurrentDescriptor)
+{
+ if (DESCRIPTOR_TYPE(CurrentDescriptor) == 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)))
+ return DESCRIPTOR_SEARCH_Found;
+ }
+ else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
+ {
+ return DESCRIPTOR_SEARCH_Fail;
+ }
+
+ return DESCRIPTOR_SEARCH_NotFound;
+}
+
+void MIDI_Host_USBTask(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo)
+{
+
+}
+
+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_DeviceDisconnect;
+
+ Pipe_SelectPipe(MIDIInterfaceInfo->Config.DataOUTPipeNumber);
+
+ if (Pipe_IsReadWriteAllowed());
+ {
+ uint8_t ErrorCode;
+
+ if ((ErrorCode = Pipe_Write_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError)
+ return ErrorCode;
+
+ 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_DeviceDisconnect;
+
+ Pipe_SelectPipe(MIDIInterfaceInfo->Config.DataINPipeNumber);
+
+ if (!(Pipe_IsReadWriteAllowed()))
+ return false;
+
+ Pipe_Read_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK);
+ Pipe_ClearIN();
+
+ return true;
+}
+
+#endif
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