+ /** Host interface configuration routine, to configure a given MIDI host interface instance using the Configuration\r
+ * Descriptor read from an attached USB device. This function automatically updates the given MIDI Host instance's\r
+ * state values and configures the pipes required to communicate with the interface if it is found within the device.\r
+ * This should be called once after the stack has enumerated the attached device, while the host state machine is in\r
+ * the Addressed state.\r
+ *\r
+ * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing an MIDI Class host configuration and state\r
+ * \param[in] ConfigDescriptorSize Length of the attached device's Configuration Descriptor\r
+ * \param[in] DeviceConfigDescriptor Pointer to a buffer containing the attached device's Configuration Descriptor\r
+ *\r
+ * \return A value from the \ref MIDIHost_EnumerationFailure_ErrorCodes_t enum\r
+ */\r
+ uint8_t MIDI_Host_ConfigurePipes(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, uint16_t ConfigDescriptorSize,\r
+ void* DeviceConfigDescriptor) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(3);\r
+\r
+ /** Sends a MIDI event packet to the device. If no device is connected, the event packet is discarded.\r
+ *\r
+ * \note This function must only be called when the Host state machine is in the HOST_STATE_Configured state or the\r
+ * call will fail.\r
+ *\r
+ * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state\r
+ * \param[in] Event Pointer to a populated USB_MIDI_EventPacket_t structure containing the MIDI event to send\r
+ *\r
+ * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum \r
+ */\r
+ uint8_t MIDI_Host_SendEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo,\r
+ MIDI_EventPacket_t* const Event) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);\r
+\r
+ /** Flushes the MIDI send buffer, sending any queued MIDI events to the device. This should be called to override the\r
+ * \ref MIDI_Host_SendEventPacket() function's packing behaviour, to flush queued events. Events are queued into the\r
+ * pipe bank until either the pipe bank is full, or \ref MIDI_Host_Flush() is called. This allows for multiple MIDI\r
+ * events to be packed into a single pipe packet, increasing data throughput.\r
+ *\r
+ * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state\r
+ *\r
+ * \return A value from the \ref Pipe_WaitUntilReady_ErrorCodes_t enum\r
+ */\r
+ uint8_t MIDI_Host_Flush(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo);\r
+ \r
+ /** Receives a MIDI event packet from the device.\r
+ *\r
+ * \note This function must only be called when the Host state machine is in the HOST_STATE_Configured state or the\r
+ * call will fail.\r
+ *\r
+ * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state\r
+ * \param[out] Event Pointer to a USB_MIDI_EventPacket_t structure where the received MIDI event is to be placed\r
+ *\r
+ * \return Boolean true if a MIDI event packet was received, false otherwise\r
+ */\r
+ bool MIDI_Host_ReceiveEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo,\r
+ MIDI_EventPacket_t* const Event) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);\r
+\r
+ /* Inline Functions: */\r
+ /** General management task for a given MIDI host class interface, required for the correct operation of the interface. This should\r
+ * be called frequently in the main program loop, before the master USB management task \ref USB_USBTask().\r
+ *\r
+ * \param[in,out] MIDIInterfaceInfo Pointer to a structure containing an MIDI Class host configuration and state\r
+ */\r
+ static inline void MIDI_Host_USBTask(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo);\r
+ static inline void MIDI_Host_USBTask(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo)\r
+ {\r
+ (void)MIDIInterfaceInfo;\r
+ }\r
+\r
+ /* Private Interface - For use in library only: */\r
+ #if !defined(__DOXYGEN__)\r
+ /* Macros: */\r
+ #define MIDI_STREAMING_CLASS 0x01\r
+ #define MIDI_STREAMING_SUBCLASS 0x03\r
+ #define MIDI_STREAMING_PROTOCOL 0x00\r
+ \r
+ #define MIDI_FOUND_DATAPIPE_IN (1 << 0)\r
+ #define MIDI_FOUND_DATAPIPE_OUT (1 << 1)\r
+\r
+ /* Function Prototypes: */\r
+ #if defined(INCLUDE_FROM_MIDI_CLASS_HOST_C)\r
+ static uint8_t DComp_MIDI_Host_NextMIDIStreamingInterface(void* const CurrentDescriptor) ATTR_NON_NULL_PTR_ARG(1);\r
+ static uint8_t DComp_MIDI_Host_NextMIDIStreamingDataEndpoint(void* const CurrentDescriptor) ATTR_NON_NULL_PTR_ARG(1);\r
+ #endif \r
+ #endif\r
+ \r