1 files changed, 272 insertions, 0 deletions
diff --git a/lib/lufa/Demos/Host/ClassDriver/MIDIHost/MIDIHost.c b/lib/lufa/Demos/Host/ClassDriver/MIDIHost/MIDIHost.c
new file mode 100644
index 0000000000..a220eae645
--- /dev/null
+++ b/lib/lufa/Demos/Host/ClassDriver/MIDIHost/MIDIHost.c
@@ -0,0 +1,272 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2017.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2017  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 disclaims 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.
+*/
+
+/** \file
+ *
+ *  Main source file for the MIDIHost demo. This file contains the main tasks of
+ *  the demo and is responsible for the initial application hardware configuration.
+ */
+
+#include "MIDIHost.h"
+
+/** LUFA MIDI Class driver interface configuration and state information. This structure is
+ *  passed to all MIDI Class driver functions, so that multiple instances of the same class
+ *  within a device can be differentiated from one another.
+ */
+USB_ClassInfo_MIDI_Host_t Keyboard_MIDI_Interface =
+	{
+		.Config =
+			{
+				.DataINPipe             =
+					{
+						.Address        = (PIPE_DIR_IN  | 1),
+						.Banks          = 1,
+					},
+				.DataOUTPipe            =
+					{
+						.Address        = (PIPE_DIR_OUT | 2),
+						.Banks          = 1,
+					},
+			},
+	};
+
+
+/** Main program entry point. This routine configures the hardware required by the application, then
+ *  enters a loop to run the application tasks in sequence.
+ */
+int main(void)
+{
+	SetupHardware();
+
+	puts_P(PSTR(ESC_FG_CYAN "MIDI Host Demo running.\r\n" ESC_FG_WHITE));
+
+	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+	GlobalInterruptEnable();
+
+	for (;;)
+	{
+		JoystickHost_Task();
+
+		MIDI_Host_USBTask(&Keyboard_MIDI_Interface);
+		USB_USBTask();
+	}
+}
+
+/** Configures the board hardware and chip peripherals for the demo's functionality. */
+void SetupHardware(void)
+{
+#if (ARCH == ARCH_AVR8)
+	/* Disable watchdog if enabled by bootloader/fuses */
+	MCUSR &= ~(1 << WDRF);
+	wdt_disable();
+
+	/* Disable clock division */
+	clock_prescale_set(clock_div_1);
+#endif
+
+	/* Hardware Initialization */
+	Serial_Init(9600, false);
+	LEDs_Init();
+	Buttons_Init();
+	Joystick_Init();
+	USB_Init();
+
+	/* Create a stdio stream for the serial port for stdin and stdout */
+	Serial_CreateStream(NULL);
+}
+
+/** Task to manage an enumerated USB MIDI device once connected, to display received
+ *  note events from the host and send note changes in response to the board's joystick.
+ */
+void JoystickHost_Task(void)
+{
+	if (USB_HostState != HOST_STATE_Configured)
+	  return;
+
+	MIDI_EventPacket_t MIDIEvent;
+	while (MIDI_Host_ReceiveEventPacket(&Keyboard_MIDI_Interface, &MIDIEvent))
+	{
+		bool NoteOnEvent  = (MIDIEvent.Event == MIDI_EVENT(0, MIDI_COMMAND_NOTE_ON));
+		bool NoteOffEvent = (MIDIEvent.Event == MIDI_EVENT(0, MIDI_COMMAND_NOTE_OFF));
+
+		/* Display note events from the host */
+		if (NoteOnEvent || NoteOffEvent)
+		{
+			printf_P(PSTR("MIDI Note %s - Channel %d, Pitch %d, Velocity %d\r\n"), NoteOnEvent ? "On" : "Off",
+																				   ((MIDIEvent.Data1 & 0x0F) + 1),
+																				   MIDIEvent.Data2, MIDIEvent.Data3);
+		}
+	}
+
+	CheckJoystickMovement();
+}
+
+/** Checks for movement of the board's joystick, and sends corresponding MIDI note on/off
+ *  messages to the host.
+ */
+void CheckJoystickMovement(void)
+{
+	static uint8_t PrevJoystickStatus;
+
+	uint8_t MIDICommand = 0;
+	uint8_t MIDIPitch;
+
+	/* Get current joystick mask, XOR with previous to detect joystick changes */
+	uint8_t JoystickStatus  = Joystick_GetStatus();
+	uint8_t JoystickChanges = (JoystickStatus ^ PrevJoystickStatus);
+
+	/* Get board button status - if pressed use channel 10 (percussion), otherwise use channel 1 */
+	uint8_t Channel = ((Buttons_GetStatus() & BUTTONS_BUTTON1) ? MIDI_CHANNEL(10) : MIDI_CHANNEL(1));
+
+	if (JoystickChanges & JOY_LEFT)
+	{
+		MIDICommand = ((JoystickStatus & JOY_LEFT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
+		MIDIPitch   = 0x3C;
+	}
+	else if (JoystickChanges & JOY_UP)
+	{
+		MIDICommand = ((JoystickStatus & JOY_UP)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
+		MIDIPitch   = 0x3D;
+	}
+	else if (JoystickChanges & JOY_RIGHT)
+	{
+		MIDICommand = ((JoystickStatus & JOY_RIGHT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
+		MIDIPitch   = 0x3E;
+	}
+	else if (JoystickChanges & JOY_DOWN)
+	{
+		MIDICommand = ((JoystickStatus & JOY_DOWN)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
+		MIDIPitch   = 0x3F;
+	}
+	else if (JoystickChanges & JOY_PRESS)
+	{
+		MIDICommand = ((JoystickStatus & JOY_PRESS)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
+		MIDIPitch   = 0x3B;
+	}
+
+	if (MIDICommand)
+	{
+		MIDI_EventPacket_t MIDIEvent = (MIDI_EventPacket_t)
+			{
+				.Event       = MIDI_EVENT(0, MIDICommand),
+
+				.Data1       = MIDICommand | Channel,
+				.Data2       = MIDIPitch,
+				.Data3       = MIDI_STANDARD_VELOCITY,
+			};
+
+		MIDI_Host_SendEventPacket(&Keyboard_MIDI_Interface, &MIDIEvent);
+		MIDI_Host_Flush(&Keyboard_MIDI_Interface);
+	}
+
+	PrevJoystickStatus = JoystickStatus;
+}
+
+/** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
+ *  starts the library USB task to begin the enumeration and USB management process.
+ */
+void EVENT_USB_Host_DeviceAttached(void)
+{
+	puts_P(PSTR("Device Attached.\r\n"));
+	LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
+}
+
+/** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
+ *  stops the library USB task management process.
+ */
+void EVENT_USB_Host_DeviceUnattached(void)
+{
+	puts_P(PSTR("\r\nDevice Unattached.\r\n"));
+	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+}
+
+/** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
+ *  enumerated by the host and is now ready to be used by the application.
+ */
+void EVENT_USB_Host_DeviceEnumerationComplete(void)
+{
+	LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
+
+	uint16_t ConfigDescriptorSize;
+	uint8_t  ConfigDescriptorData[512];
+
+	if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
+	                                       sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
+	{
+		puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n"));
+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+		return;
+	}
+
+	if (MIDI_Host_ConfigurePipes(&Keyboard_MIDI_Interface,
+	                             ConfigDescriptorSize, ConfigDescriptorData) != MIDI_ENUMERROR_NoError)
+	{
+		puts_P(PSTR("Attached Device Not a Valid MIDI Class Device.\r\n"));
+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+		return;
+	}
+
+	if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
+	{
+		puts_P(PSTR("Error Setting Device Configuration.\r\n"));
+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+		return;
+	}
+
+	puts_P(PSTR("MIDI Device Enumerated.\r\n"));
+	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+}
+
+/** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
+void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
+{
+	USB_Disable();
+
+	printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
+	                         " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
+
+	LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+	for(;;);
+}
+
+/** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
+ *  enumerating an attached USB device.
+ */
+void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
+                                            const uint8_t SubErrorCode)
+{
+	printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
+	                         " -- Error Code %d\r\n"
+	                         " -- Sub Error Code %d\r\n"
+	                         " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
+
+	LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+}
+