Add new MIDI Host Class driver to the library, and new MIDIHost ClassDriver demo.

Make MouseHost and KeyboardHost ClassDriver demos use the HID Class driver's structures for the boot protocol Mouse/Keyboard report data, rather than rolling their own.

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