Merge pull request #1471 from qmk/lufa_lib

Update LUFA and move it to /lib/lufa

1 files changed, 211 insertions, 0 deletions

diff --git a/lib/lufa/Demos/Device/ClassDriver/DualMIDI/DualMIDI.c b/lib/lufa/Demos/Device/ClassDriver/DualMIDI/DualMIDI.c
new file mode 100644
index 0000000000..b31f602498
--- /dev/null
+++ b/lib/lufa/Demos/Device/ClassDriver/DualMIDI/DualMIDI.c
@@ -0,0 +1,211 @@
+/*
+             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 Dual MIDI demo. This file contains the main tasks of
+ *  the demo and is responsible for the initial application hardware configuration.
+ */
+
+#include "DualMIDI.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_Device_t Keyboard_MIDI_Interface =
+	{
+		.Config =
+			{
+				.StreamingInterfaceNumber = INTERFACE_ID_AudioStream,
+				.DataINEndpoint           =
+					{
+						.Address          = MIDI_STREAM_IN_EPADDR,
+						.Size             = MIDI_STREAM_EPSIZE,
+						.Banks            = 1,
+					},
+				.DataOUTEndpoint          =
+					{
+						.Address          = MIDI_STREAM_OUT_EPADDR,
+						.Size             = MIDI_STREAM_EPSIZE,
+						.Banks            = 1,
+					},
+			},
+	};
+
+
+/** Main program entry point. This routine contains the overall program flow, including initial
+ *  setup of all components and the main program loop.
+ */
+int main(void)
+{
+	SetupHardware();
+
+	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+	GlobalInterruptEnable();
+
+	for (;;)
+	{
+		CheckJoystickMovement();
+
+		MIDI_EventPacket_t ReceivedMIDIEvent;
+		while (MIDI_Device_ReceiveEventPacket(&Keyboard_MIDI_Interface, &ReceivedMIDIEvent))
+		{
+			if ((ReceivedMIDIEvent.Event == MIDI_EVENT(0, MIDI_COMMAND_NOTE_ON)) && (ReceivedMIDIEvent.Data3 > 0))
+			  LEDs_SetAllLEDs(ReceivedMIDIEvent.Data2 > 64 ? LEDS_LED1 : LEDS_LED2);
+			else
+			  LEDs_SetAllLEDs(LEDS_NO_LEDS);
+		}
+
+		MIDI_Device_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);
+#elif (ARCH == ARCH_XMEGA)
+	/* Start the PLL to multiply the 2MHz RC oscillator to 32MHz and switch the CPU core to run from it */
+	XMEGACLK_StartPLL(CLOCK_SRC_INT_RC2MHZ, 2000000, F_CPU);
+	XMEGACLK_SetCPUClockSource(CLOCK_SRC_PLL);
+
+	/* Start the 32MHz internal RC oscillator and start the DFLL to increase it to 48MHz using the USB SOF as a reference */
+	XMEGACLK_StartInternalOscillator(CLOCK_SRC_INT_RC32MHZ);
+	XMEGACLK_StartDFLL(CLOCK_SRC_INT_RC32MHZ, DFLL_REF_INT_USBSOF, F_USB);
+
+	PMIC.CTRL = PMIC_LOLVLEN_bm | PMIC_MEDLVLEN_bm | PMIC_HILVLEN_bm;
+#endif
+
+	/* Hardware Initialization */
+	Joystick_Init();
+	LEDs_Init();
+	Buttons_Init();
+	USB_Init();
+}
+
+/** Checks for changes in the position of the board joystick, sending MIDI events to the host upon each change. */
+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 second virtual cable, otherwise use the first */
+	uint8_t VirtualCable = (Buttons_GetStatus() & BUTTONS_BUTTON1) ? 1 : 0;
+
+	if (JoystickChanges & JOY_LEFT)
+	{
+		MIDICommand = ((JoystickStatus & JOY_LEFT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
+		MIDIPitch   = 0x3C;
+	}
+
+	if (JoystickChanges & JOY_UP)
+	{
+		MIDICommand = ((JoystickStatus & JOY_UP)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
+		MIDIPitch   = 0x3D;
+	}
+
+	if (JoystickChanges & JOY_RIGHT)
+	{
+		MIDICommand = ((JoystickStatus & JOY_RIGHT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
+		MIDIPitch   = 0x3E;
+	}
+
+	if (JoystickChanges & JOY_DOWN)
+	{
+		MIDICommand = ((JoystickStatus & JOY_DOWN)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
+		MIDIPitch   = 0x3F;
+	}
+
+	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(VirtualCable, MIDICommand),
+
+				.Data1       = MIDICommand | MIDI_CHANNEL(1),
+				.Data2       = MIDIPitch,
+				.Data3       = MIDI_STANDARD_VELOCITY,
+			};
+
+		MIDI_Device_SendEventPacket(&Keyboard_MIDI_Interface, &MIDIEvent);
+		MIDI_Device_Flush(&Keyboard_MIDI_Interface);
+	}
+
+	PrevJoystickStatus = JoystickStatus;
+}
+
+/** Event handler for the library USB Connection event. */
+void EVENT_USB_Device_Connect(void)
+{
+	LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
+}
+
+/** Event handler for the library USB Disconnection event. */
+void EVENT_USB_Device_Disconnect(void)
+{
+	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+}
+
+/** Event handler for the library USB Configuration Changed event. */
+void EVENT_USB_Device_ConfigurationChanged(void)
+{
+	bool ConfigSuccess = true;
+
+	ConfigSuccess &= MIDI_Device_ConfigureEndpoints(&Keyboard_MIDI_Interface);
+
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
+}
+
+/** Event handler for the library USB Control Request reception event. */
+void EVENT_USB_Device_ControlRequest(void)
+{
+	MIDI_Device_ProcessControlRequest(&Keyboard_MIDI_Interface);
+}
+