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[pub/USBasp.git] / 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 542700b..a5ad4bf 100644 (file)
--- a/LUFA/Drivers/USB/Class/Host/MIDI.c
+++ b/LUFA/Drivers/USB/Class/Host/MIDI.c
@@ -1,21 +1,21 @@
 /*\r
              LUFA Library\r
 /*\r
              LUFA Library\r

-     Copyright (C) Dean Camera, 2009.\r
+     Copyright (C) Dean Camera, 2010.\r

               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r
               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r

-  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
-  Permission to use, copy, modify, and distribute this software\r
-  and its documentation for any purpose and without fee is hereby\r
-  granted, provided that the above copyright notice appear in all\r
-  copies and that both that the copyright notice and this\r
-  permission notice and warranty disclaimer appear in supporting\r
-  documentation, and that the name of the author not be used in\r
-  advertising or publicity pertaining to distribution of the\r
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+\r
+  Permission to use, copy, modify, distribute, and sell this \r
+  software and its documentation for any purpose is hereby granted\r
+  without fee, provided that the above copyright notice appear in \r
+  all copies and that both that the copyright notice and this\r
+  permission notice and warranty disclaimer appear in supporting \r
+  documentation, and that the name of the author not be used in \r
+  advertising or publicity pertaining to distribution of the \r

   software without specific, written prior permission.\r
 \r
   The author disclaim all warranties with regard to this\r
   software without specific, written prior permission.\r
 \r
   The author disclaim all warranties with regard to this\r


@@ -31,6 +31,154 @@
 #include "../../HighLevel/USBMode.h"\r
 #if defined(USB_CAN_BE_HOST)\r
 \r
 #include "../../HighLevel/USBMode.h"\r
 #if defined(USB_CAN_BE_HOST)\r
 \r

+#define  INCLUDE_FROM_MIDI_CLASS_HOST_C\r

 #include "MIDI.h"\r
 \r
 #include "MIDI.h"\r
 \r

+uint8_t MIDI_Host_ConfigurePipes(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, uint16_t ConfigDescriptorSize,\r
+                                 void* ConfigDescriptorData)\r
+{\r
+       uint8_t FoundEndpoints = 0;\r
+\r
+       memset(&MIDIInterfaceInfo->State, 0x00, sizeof(MIDIInterfaceInfo->State));\r
+\r
+       if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)\r
+         return MIDI_ENUMERROR_InvalidConfigDescriptor;\r
+       \r
+       if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,\r
+                                     DComp_MIDI_Host_NextMIDIStreamingInterface) != DESCRIPTOR_SEARCH_COMP_Found)\r
+       {\r
+               return MIDI_ENUMERROR_NoStreamingInterfaceFound;\r
+       }\r
+       \r
+       while (FoundEndpoints != (MIDI_FOUND_DATAPIPE_IN | MIDI_FOUND_DATAPIPE_OUT))\r
+       {\r
+               if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,\r
+                                             DComp_MIDI_Host_NextMIDIStreamingDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)\r
+               {\r
+                       return MIDI_ENUMERROR_EndpointsNotFound;\r
+               }\r
+               \r
+               USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);\r
+\r
+               if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)\r
+               {\r
+                       Pipe_ConfigurePipe(MIDIInterfaceInfo->Config.DataINPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_IN,\r
+                                                          EndpointData->EndpointAddress, EndpointData->EndpointSize,\r
+                                                          MIDIInterfaceInfo->Config.DataINPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);\r
+                       MIDIInterfaceInfo->State.DataINPipeSize = EndpointData->EndpointSize;\r
+                       \r
+                       FoundEndpoints |= MIDI_FOUND_DATAPIPE_IN;\r
+               }\r
+               else\r
+               {\r
+                       Pipe_ConfigurePipe(MIDIInterfaceInfo->Config.DataOUTPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_OUT,\r
+                                                          EndpointData->EndpointAddress, EndpointData->EndpointSize,\r
+                                                          MIDIInterfaceInfo->Config.DataOUTPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);\r
+                       MIDIInterfaceInfo->State.DataOUTPipeSize = EndpointData->EndpointSize;\r
+\r
+                       FoundEndpoints |= MIDI_FOUND_DATAPIPE_OUT;\r
+               }\r
+       }\r
+       \r
+       MIDIInterfaceInfo->State.IsActive = true;\r
+       return MIDI_ENUMERROR_NoError;\r
+}\r
+\r
+static uint8_t DComp_MIDI_Host_NextMIDIStreamingInterface(void* const CurrentDescriptor)\r
+{\r
+       if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)\r
+       {\r
+               USB_Descriptor_Interface_t* CurrentInterface = DESCRIPTOR_PCAST(CurrentDescriptor,\r
+                                                                               USB_Descriptor_Interface_t);\r
+\r
+               if ((CurrentInterface->Class    == MIDI_STREAMING_CLASS)    &&\r
+                   (CurrentInterface->SubClass == MIDI_STREAMING_SUBCLASS) &&\r
+                   (CurrentInterface->Protocol == MIDI_STREAMING_PROTOCOL))\r
+               {\r
+                       return DESCRIPTOR_SEARCH_Found;\r
+               }\r
+       }\r
+       \r
+       return DESCRIPTOR_SEARCH_NotFound;\r
+}\r
+\r
+static uint8_t DComp_MIDI_Host_NextMIDIStreamingDataEndpoint(void* const CurrentDescriptor)\r
+{\r
+       if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)\r
+       {\r
+               USB_Descriptor_Endpoint_t* CurrentEndpoint = DESCRIPTOR_PCAST(CurrentDescriptor,\r
+                                                                             USB_Descriptor_Endpoint_t);\r
+       \r
+               uint8_t EndpointType = (CurrentEndpoint->Attributes & EP_TYPE_MASK);\r
+       \r
+               if ((EndpointType == EP_TYPE_BULK) && !(Pipe_IsEndpointBound(CurrentEndpoint->EndpointAddress)))\r
+                 return DESCRIPTOR_SEARCH_Found;\r
+       }\r
+       else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)\r
+       {\r
+               return DESCRIPTOR_SEARCH_Fail;\r
+       }\r
+\r
+       return DESCRIPTOR_SEARCH_NotFound;\r
+}\r
+\r
+uint8_t MIDI_Host_Flush(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo)\r
+{\r
+       if (USB_HostState != HOST_STATE_Configured)\r
+         return PIPE_RWSTREAM_DeviceDisconnected;\r
+       \r
+       uint8_t ErrorCode;\r
+\r
+       Pipe_SelectPipe(MIDIInterfaceInfo->Config.DataOUTPipeNumber);\r
+\r
+       if (Pipe_BytesInPipe())\r
+       {\r
+               Pipe_ClearOUT();\r
+\r
+               if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)\r
+                 return ErrorCode;\r
+       }\r
+\r
+       return PIPE_READYWAIT_NoError;\r
+}\r
+\r
+uint8_t MIDI_Host_SendEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event)\r
+{\r
+       if ((USB_HostState != HOST_STATE_Configured) || !(MIDIInterfaceInfo->State.IsActive))\r
+         return HOST_SENDCONTROL_DeviceDisconnected;\r
+       \r
+       Pipe_SelectPipe(MIDIInterfaceInfo->Config.DataOUTPipeNumber);\r
+\r
+       if (Pipe_IsReadWriteAllowed())\r
+       {\r
+               uint8_t ErrorCode;\r
+\r
+               if ((ErrorCode = Pipe_Write_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError)\r
+                 return ErrorCode;\r
+\r
+               if (!(Pipe_IsReadWriteAllowed()))\r
+                 Pipe_ClearOUT();\r
+       }\r
+       \r
+       return PIPE_RWSTREAM_NoError;\r
+}\r
+\r
+bool MIDI_Host_ReceiveEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event)\r
+{\r
+       if ((USB_HostState != HOST_STATE_Configured) || !(MIDIInterfaceInfo->State.IsActive))\r
+         return HOST_SENDCONTROL_DeviceDisconnected;\r
+       \r
+       Pipe_SelectPipe(MIDIInterfaceInfo->Config.DataINPipeNumber);\r
+\r
+       if (!(Pipe_IsReadWriteAllowed()))\r
+         return false;\r
+\r
+       Pipe_Read_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK);\r
+\r
+       if (!(Pipe_IsReadWriteAllowed()))\r
+         Pipe_ClearIN();\r
+       \r
+       return true;\r
+}\r
+\r

 #endif\r
 #endif\r