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author | Dean Camera <dean@fourwalledcubicle.com> | 2011-11-18 06:26:51 +0000 |
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committer | Dean Camera <dean@fourwalledcubicle.com> | 2011-11-18 06:26:51 +0000 |
commit | eb2e883fd35b5332a7425488105a7adb500ce3fe (patch) | |
tree | fb56521b575c979681147b3ae80a8c63a881544b /LUFA/Drivers/USB/Class/Device/MIDIClassDevice.c | |
parent | 3e044872790072838c2d1d0370b98b6ebf4fea93 (diff) | |
download | lufa-eb2e883fd35b5332a7425488105a7adb500ce3fe.tar.gz lufa-eb2e883fd35b5332a7425488105a7adb500ce3fe.tar.bz2 lufa-eb2e883fd35b5332a7425488105a7adb500ce3fe.zip |
Added Class, ClassDevice, ClassHost and ClassCommon to the internal class driver source filenames to prevent ambiguities.
Diffstat (limited to 'LUFA/Drivers/USB/Class/Device/MIDIClassDevice.c')
-rw-r--r-- | LUFA/Drivers/USB/Class/Device/MIDIClassDevice.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/Class/Device/MIDIClassDevice.c b/LUFA/Drivers/USB/Class/Device/MIDIClassDevice.c new file mode 100644 index 000000000..13454592b --- /dev/null +++ b/LUFA/Drivers/USB/Class/Device/MIDIClassDevice.c @@ -0,0 +1,149 @@ +/* + 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_DEVICE) + +#define __INCLUDE_FROM_MIDI_DRIVER +#define __INCLUDE_FROM_MIDI_DEVICE_C +#include "MIDIClassDevice.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), NULL)) != 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), NULL); + + if (!(Endpoint_IsReadWriteAllowed())) + Endpoint_ClearOUT(); + + return true; +} + +#endif + |