X-Git-Url: http://git.linex4red.de/pub/lufa.git/blobdiff_plain/ecf7538430c01b95104682f0f7493e57b9168125..ed031c1df2f5b053b9cd9f48c63e66a42b7c049e:/Demos/MIDI/MIDI.c diff --git a/Demos/MIDI/MIDI.c b/Demos/MIDI/MIDI.c deleted file mode 100644 index c0e4f9df9..000000000 --- a/Demos/MIDI/MIDI.c +++ /dev/null @@ -1,225 +0,0 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2009. - - dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com -*/ - -/* - Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - Permission to use, copy, modify, and distribute this software - and its documentation for any purpose and without fee is hereby - granted, 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 disclaim 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 MIDI input demo. This file contains the main tasks of the demo and - * is responsible for the initial application hardware configuration. - */ - -#include "MIDI.h" - -/* Project Tags, for reading out using the ButtLoad project */ -BUTTLOADTAG(ProjName, "LUFA MIDI App"); -BUTTLOADTAG(BuildTime, __TIME__); -BUTTLOADTAG(BuildDate, __DATE__); -BUTTLOADTAG(LUFAVersion, "LUFA V" LUFA_VERSION_STRING); - -/* Scheduler Task List */ -TASK_LIST -{ - { Task: USB_USBTask , TaskStatus: TASK_STOP }, - { Task: USB_MIDI_Task , TaskStatus: TASK_STOP }, -}; - -/** Main program entry point. This routine configures the hardware required by the application, then - * starts the scheduler to run the application tasks. - */ -int main(void) -{ - /* Disable watchdog if enabled by bootloader/fuses */ - MCUSR &= ~(1 << WDRF); - wdt_disable(); - - /* Disable clock division */ - clock_prescale_set(clock_div_1); - - /* Hardware Initialization */ - Joystick_Init(); - LEDs_Init(); - HWB_Init(); - - /* Indicate USB not ready */ - UpdateStatus(Status_USBNotReady); - - /* Initialize Scheduler so that it can be used */ - Scheduler_Init(); - - /* Initialize USB Subsystem */ - USB_Init(); - - /* Scheduling - routine never returns, so put this last in the main function */ - Scheduler_Start(); -} - -/** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs. */ -EVENT_HANDLER(USB_Connect) -{ - /* Start USB management task */ - Scheduler_SetTaskMode(USB_USBTask, TASK_RUN); - - /* Indicate USB enumerating */ - UpdateStatus(Status_USBEnumerating); -} - -/** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via - * the status LEDs, disables the sample update and PWM output timers and stops the USB and MIDI management tasks. - */ -EVENT_HANDLER(USB_Disconnect) -{ - /* Stop running audio and USB management tasks */ - Scheduler_SetTaskMode(USB_MIDI_Task, TASK_STOP); - Scheduler_SetTaskMode(USB_USBTask, TASK_STOP); - - /* Indicate USB not ready */ - UpdateStatus(Status_USBNotReady); -} - -/** Event handler for the USB_ConfigurationChanged event. This is fired when the host set the current configuration - * of the USB device after enumeration - the device endpoints are configured and the MIDI management task started. - */ -EVENT_HANDLER(USB_ConfigurationChanged) -{ - /* Setup MIDI stream endpoints */ - Endpoint_ConfigureEndpoint(MIDI_STREAM_OUT_EPNUM, EP_TYPE_BULK, - ENDPOINT_DIR_OUT, MIDI_STREAM_EPSIZE, - ENDPOINT_BANK_SINGLE); - - Endpoint_ConfigureEndpoint(MIDI_STREAM_IN_EPNUM, EP_TYPE_BULK, - ENDPOINT_DIR_IN, MIDI_STREAM_EPSIZE, - ENDPOINT_BANK_SINGLE); - - /* Indicate USB connected and ready */ - UpdateStatus(Status_USBReady); - - /* Start MIDI task */ - Scheduler_SetTaskMode(USB_MIDI_Task, TASK_RUN); -} - -/** Task to handle the generation of MIDI note change events in response to presses of the board joystick, and send them - * to the host. - */ -TASK(USB_MIDI_Task) -{ - static uint8_t PrevJoystickStatus; - - /* Select the MIDI IN stream */ - Endpoint_SelectEndpoint(MIDI_STREAM_IN_EPNUM); - - /* Check if endpoint is ready to be written to */ - if (Endpoint_ReadWriteAllowed()) - { - /* Get current joystick mask, XOR with previous to detect joystick changes */ - uint8_t JoystickStatus = Joystick_GetStatus(); - uint8_t JoystickChanges = (JoystickStatus ^ PrevJoystickStatus); - - /* Get HWB status - if set use channel 10 (percussion), otherwise use channel 1 */ - uint8_t Channel = ((HWB_GetStatus()) ? MIDI_CHANNEL(10) : MIDI_CHANNEL(1)); - - if (JoystickChanges & JOY_LEFT) - SendMIDINoteChange(0x3C, (JoystickStatus & JOY_LEFT), 0, Channel); - - if (JoystickChanges & JOY_UP) - SendMIDINoteChange(0x3D, (JoystickStatus & JOY_UP), 0, Channel); - - if (JoystickChanges & JOY_RIGHT) - SendMIDINoteChange(0x3E, (JoystickStatus & JOY_RIGHT), 0, Channel); - - if (JoystickChanges & JOY_DOWN) - SendMIDINoteChange(0x3F, (JoystickStatus & JOY_DOWN), 0, Channel); - - if (JoystickChanges & JOY_PRESS) - SendMIDINoteChange(0x3B, (JoystickStatus & JOY_PRESS), 0, Channel); - - /* Save previous joystick value for next joystick change detection */ - PrevJoystickStatus = JoystickStatus; - } - - /* Select the MIDI OUT stream */ - Endpoint_SelectEndpoint(MIDI_STREAM_OUT_EPNUM); - - /* Check if endpoint is ready to be read from, if so discard its (unused) data */ - if (Endpoint_ReadWriteAllowed()) - Endpoint_ClearCurrentBank(); -} - -/** Function to manage status updates to the user. This is done via LEDs on the given board, if available, but may be changed to - * log to a serial port, or anything else that is suitable for status updates. - * - * \param CurrentStatus Current status of the system, from the MIDI_StatusCodes_t enum - */ -void UpdateStatus(uint8_t CurrentStatus) -{ - uint8_t LEDMask = LEDS_NO_LEDS; - - /* Set the LED mask to the appropriate LED mask based on the given status code */ - switch (CurrentStatus) - { - case Status_USBNotReady: - LEDMask = (LEDS_LED1); - break; - case Status_USBEnumerating: - LEDMask = (LEDS_LED1 | LEDS_LED2); - break; - case Status_USBReady: - LEDMask = (LEDS_LED2 | LEDS_LED4); - break; - } - - /* Set the board LEDs to the new LED mask */ - LEDs_SetAllLEDs(LEDMask); -} - -/** Sends a MIDI note change event (note on or off) to the MIDI output jack, on the given virtual cable ID and channel. - * - * \param Pitch Pitch of the note to turn on or off - * \param OnOff Set to true if the note is on (being held down), or false otherwise - * \param CableID ID of the virtual cable to send the note change to - * \param Channel MIDI channel number to send the note change event to - */ -void SendMIDINoteChange(const uint8_t Pitch, const bool OnOff, const uint8_t CableID, const uint8_t Channel) -{ - /* Wait until endpoint ready for more data */ - while (!(Endpoint_ReadWriteAllowed())); - - /* Check if the message should be a Note On or Note Off command */ - uint8_t Command = ((OnOff)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF); - - /* Write the Packet Header to the endpoint */ - Endpoint_Write_Byte((CableID << 4) | (Command >> 4)); - - /* Write the Note On/Off command with the specified channel, pitch and velocity */ - Endpoint_Write_Byte(Command | Channel); - Endpoint_Write_Byte(Pitch); - Endpoint_Write_Byte(MIDI_STANDARD_VELOCITY); - - /* Send the data in the endpoint to the host */ - Endpoint_ClearCurrentBank(); -}