diff options
Diffstat (limited to 'Demos/MIDI/MIDI.c')
| -rw-r--r-- | Demos/MIDI/MIDI.c | 225 |
1 files changed, 0 insertions, 225 deletions
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();
-}
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