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133 lines
4.1 KiB
133 lines
4.1 KiB
/*
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LUFA Library
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Copyright (C) Dean Camera, 2009.
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dean [at] fourwalledcubicle [dot] com
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www.fourwalledcubicle.com
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*/
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/*
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Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaim all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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/** \file
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*
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* Main source file for the MIDI bootloader. This file contains the main tasks of the demo and
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* is responsible for the initial application hardware configuration.
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*/
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#include "MIDI.h"
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/** Main program entry point. This routine configures the hardware required by the application, then
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* enters a loop to run the application tasks in sequence.
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*/
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int main(void)
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{
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SetupHardware();
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LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
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for (;;)
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{
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MIDI_Task();
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USB_USBTask();
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}
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}
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/** Configures the board hardware and chip peripherals for the demo's functionality. */
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void SetupHardware(void)
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{
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/* Disable watchdog if enabled by bootloader/fuses */
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MCUSR &= ~(1 << WDRF);
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wdt_disable();
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/* Disable clock division */
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clock_prescale_set(clock_div_1);
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/* Hardware Initialization */
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LEDs_Init();
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USB_Init();
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}
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/** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs. */
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void EVENT_USB_Device_Connect(void)
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{
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/* Indicate USB enumerating */
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LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
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}
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/** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via
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* the status LEDs, disables the sample update and PWM output timers and stops the USB and MIDI management tasks.
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*/
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void EVENT_USB_Device_Disconnect(void)
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{
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/* Indicate USB not ready */
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LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
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}
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/** Event handler for the USB_ConfigurationChanged event. This is fired when the host set the current configuration
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* of the USB device after enumeration - the device endpoints are configured and the MIDI management task started.
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*/
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void EVENT_USB_Device_ConfigurationChanged(void)
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{
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/* Indicate USB connected and ready */
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LEDs_SetAllLEDs(LEDMASK_USB_READY);
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/* Setup MIDI stream endpoints */
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if (!(Endpoint_ConfigureEndpoint(MIDI_STREAM_OUT_EPNUM, EP_TYPE_BULK,
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ENDPOINT_DIR_OUT, MIDI_STREAM_EPSIZE,
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ENDPOINT_BANK_SINGLE)))
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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}
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if (!(Endpoint_ConfigureEndpoint(MIDI_STREAM_IN_EPNUM, EP_TYPE_BULK,
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ENDPOINT_DIR_IN, MIDI_STREAM_EPSIZE,
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ENDPOINT_BANK_SINGLE)))
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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}
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}
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/** Task to handle the generation of MIDI note change events in response to presses of the board joystick, and send them
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* to the host.
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*/
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void MIDI_Task(void)
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{
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/* Device must be connected and configured for the task to run */
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if (USB_DeviceState != DEVICE_STATE_Configured)
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return;
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/* Select the MIDI OUT stream */
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Endpoint_SelectEndpoint(MIDI_STREAM_OUT_EPNUM);
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if (Endpoint_IsOUTReceived())
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{
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USB_MIDI_EventPacket_t Packet;
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Endpoint_Read_Stream_LE(&Packet, sizeof(Packet));
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LEDs_SetAllLEDs(Packet.Data2 > 64 ? LEDS_LED1 : LEDS_LED2);
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Endpoint_ClearOUT();
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}
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}
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