diff options
Diffstat (limited to 'LUFA/Drivers/USB/Class/Device/MIDI.c')
| -rw-r--r-- | LUFA/Drivers/USB/Class/Device/MIDI.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/Class/Device/MIDI.c b/LUFA/Drivers/USB/Class/Device/MIDI.c new file mode 100644 index 0000000..9d2a1a8 --- /dev/null +++ b/LUFA/Drivers/USB/Class/Device/MIDI.c @@ -0,0 +1,148 @@ +/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2010.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2010 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 "../../HighLevel/USBMode.h"
+#if defined(USB_CAN_BE_DEVICE)
+
+#define __INCLUDE_FROM_MIDI_DRIVER
+#define __INCLUDE_FROM_MIDI_DEVICE_C
+#include "MIDI.h"
+
+bool MIDI_Device_ConfigureEndpoints(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo)
+{
+ memset(&MIDIInterfaceInfo->State, 0x00, sizeof(MIDIInterfaceInfo->State));
+
+ for (uint8_t EndpointNum = 1; EndpointNum < ENDPOINT_TOTAL_ENDPOINTS; EndpointNum++)
+ {
+ uint16_t Size;
+ uint8_t Type;
+ uint8_t Direction;
+ bool DoubleBanked;
+
+ if (EndpointNum == MIDIInterfaceInfo->Config.DataINEndpointNumber)
+ {
+ Size = MIDIInterfaceInfo->Config.DataINEndpointSize;
+ Direction = ENDPOINT_DIR_IN;
+ Type = EP_TYPE_BULK;
+ DoubleBanked = MIDIInterfaceInfo->Config.DataINEndpointDoubleBank;
+ }
+ else if (EndpointNum == MIDIInterfaceInfo->Config.DataOUTEndpointNumber)
+ {
+ Size = MIDIInterfaceInfo->Config.DataOUTEndpointSize;
+ Direction = ENDPOINT_DIR_OUT;
+ Type = EP_TYPE_BULK;
+ DoubleBanked = MIDIInterfaceInfo->Config.DataOUTEndpointDoubleBank;
+ }
+ else
+ {
+ continue;
+ }
+
+ if (!(Endpoint_ConfigureEndpoint(EndpointNum, Type, Direction, Size,
+ DoubleBanked ? ENDPOINT_BANK_DOUBLE : ENDPOINT_BANK_SINGLE)))
+ {
+ return false;
+ }
+ }
+
+ return true;
+}
+
+void MIDI_Device_USBTask(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo)
+{
+ if (USB_DeviceState != DEVICE_STATE_Configured)
+ return;
+
+ #if !defined(NO_CLASS_DRIVER_AUTOFLUSH)
+ MIDI_Device_Flush(MIDIInterfaceInfo);
+ #endif
+}
+
+uint8_t MIDI_Device_SendEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo,
+ const MIDI_EventPacket_t* const Event)
+{
+ if (USB_DeviceState != DEVICE_STATE_Configured)
+ return ENDPOINT_RWSTREAM_DeviceDisconnected;
+
+ uint8_t ErrorCode;
+
+ Endpoint_SelectEndpoint(MIDIInterfaceInfo->Config.DataINEndpointNumber);
+
+ if ((ErrorCode = Endpoint_Write_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK)) != ENDPOINT_RWSTREAM_NoError)
+ return ErrorCode;
+
+ if (!(Endpoint_IsReadWriteAllowed()))
+ Endpoint_ClearIN();
+
+ return ENDPOINT_RWSTREAM_NoError;
+}
+
+uint8_t MIDI_Device_Flush(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo)
+{
+ if (USB_DeviceState != DEVICE_STATE_Configured)
+ return ENDPOINT_RWSTREAM_DeviceDisconnected;
+
+ uint8_t ErrorCode;
+
+ Endpoint_SelectEndpoint(MIDIInterfaceInfo->Config.DataINEndpointNumber);
+
+ if (Endpoint_BytesInEndpoint())
+ {
+ Endpoint_ClearIN();
+
+ if ((ErrorCode = Endpoint_WaitUntilReady()) != ENDPOINT_READYWAIT_NoError)
+ return ErrorCode;
+ }
+
+ return ENDPOINT_READYWAIT_NoError;
+}
+
+bool MIDI_Device_ReceiveEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo,
+ MIDI_EventPacket_t* const Event)
+{
+ if (USB_DeviceState != DEVICE_STATE_Configured)
+ return false;
+
+ Endpoint_SelectEndpoint(MIDIInterfaceInfo->Config.DataOUTEndpointNumber);
+
+ if (!(Endpoint_IsReadWriteAllowed()))
+ return false;
+
+ Endpoint_Read_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK);
+
+ if (!(Endpoint_IsReadWriteAllowed()))
+ Endpoint_ClearOUT();
+
+ return true;
+}
+
+#endif
+
|