diff options
Diffstat (limited to 'lib/lufa/Demos/Device/ClassDriver/DualMIDI/DualMIDI.c')
| -rw-r--r-- | lib/lufa/Demos/Device/ClassDriver/DualMIDI/DualMIDI.c | 211 | 
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); +} + | 
