From 87c19e1f4ccfcf8b5f2089a87c03e8c6cdd9c9b6 Mon Sep 17 00:00:00 2001 From: Christian Pointner Date: Sun, 11 Oct 2015 17:00:17 +0200 Subject: added example which combines USB CDC and MIDI --- usb-cdc-midi/Makefile | 45 ++++++++++ usb-cdc-midi/usb-cdc-midi.c | 212 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 257 insertions(+) create mode 100644 usb-cdc-midi/Makefile create mode 100644 usb-cdc-midi/usb-cdc-midi.c (limited to 'usb-cdc-midi') diff --git a/usb-cdc-midi/Makefile b/usb-cdc-midi/Makefile new file mode 100644 index 0000000..c33bd67 --- /dev/null +++ b/usb-cdc-midi/Makefile @@ -0,0 +1,45 @@ +## +## spreadspace avr utils +## +## +## Copyright (C) 2013-2015 Christian Pointner +## +## This file is part of spreadspace avr utils. +## +## spreadspace avr utils is free software: you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## any later version. +## +## spreadspace avr utils is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with spreadspace avr utils. If not, see . +## + +NAME := usb-cdc-midi +BOARD_TYPE := teensy2 +OBJ := $(NAME).o +LIBS := util led lufa-descriptor-usbserialmidi +EXTERNAL_LIBS := lufa +SPREADAVR_PATH := .. + +LUFA_PATH := $(SPREADAVR_PATH)/contrib/lufa-LUFA-140928 +LUFA_OPTS = -D USB_DEVICE_ONLY +LUFA_OPTS += -D DEVICE_STATE_AS_GPIOR=0 +LUFA_OPTS += -D ORDERED_EP_CONFIG +LUFA_OPTS += -D FIXED_CONTROL_ENDPOINT_SIZE=8 +LUFA_OPTS += -D FIXED_NUM_CONFIGURATIONS=1 +LUFA_OPTS += -D USE_FLASH_DESCRIPTORS +LUFA_OPTS += -D USE_STATIC_OPTIONS="(USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)" +LUFA_OPTS += -D INTERRUPT_CONTROL_ENDPOINT + +LUFA_OPTS += -D USB_MANUFACTURER="L\"equinox\"" +LUFA_OPTS += -D USB_PRODUCT="L\"spreadspace usb-cdc & midi example\"" + +LUFA_COMPONENTS := USB USBCLASS SERIAL + +include $(SPREADAVR_PATH)/include.mk diff --git a/usb-cdc-midi/usb-cdc-midi.c b/usb-cdc-midi/usb-cdc-midi.c new file mode 100644 index 0000000..8658df8 --- /dev/null +++ b/usb-cdc-midi/usb-cdc-midi.c @@ -0,0 +1,212 @@ +/* + * spreadspace avr utils + * + * + * Copyright (C) 2013-2015 Christian Pointner + * + * This file is part of spreadspace avr utils. + * + * spreadspace avr utils is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * any later version. + * + * spreadspace avr utils is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with spreadspace avr utils. If not, see . + */ + + +#include +#include +#include +#include +#include + +#include "serialio.h" +#include "led.h" + +/* + LUFA Library + Copyright (C) Dean Camera, 2014. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ +#include +#include +#include "lufa-descriptor-usbserialmidi.h" + +USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface = + { + .Config = + { + .ControlInterfaceNumber = INTERFACE_ID_CDC_CCI, + .DataINEndpoint = + { + .Address = CDC_TX_EPADDR, + .Size = CDC_TXRX_EPSIZE, + .Banks = 1, + }, + .DataOUTEndpoint = + { + .Address = CDC_RX_EPADDR, + .Size = CDC_TXRX_EPSIZE, + .Banks = 1, + }, + .NotificationEndpoint = + { + .Address = CDC_NOTIFICATION_EPADDR, + .Size = CDC_NOTIFICATION_EPSIZE, + .Banks = 1, + }, + }, + }; + + +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, + }, + }, + }; + + +void EVENT_USB_Device_ConfigurationChanged(void) +{ + CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface); + MIDI_Device_ConfigureEndpoints(&Keyboard_MIDI_Interface); +} + +void EVENT_USB_Device_ControlRequest(void) +{ + CDC_Device_ProcessControlRequest(&VirtualSerial_CDC_Interface); + MIDI_Device_ProcessControlRequest(&Keyboard_MIDI_Interface); +} +/* end LUFA CDC-ACM MIDI specific definitions*/ + +#include "util.h" +#include "led.h" + +static FILE usb_stream; + +#define KEY_PIN PINB +#define KEY_PORT PORTB +#define KEY_DDR DDRB +#define KEY_BIT 0 + +#define KEY_LP_MAX 255 + +void key_init(void) +{ + KEY_DDR = (1< 0) { + int ReceivedByte = fgetc(stdin); + if(ReceivedByte != EOF) { + handle_cmd(ReceivedByte); + } + BytesReceived--; + } + + MIDI_EventPacket_t ReceivedMIDIEvent; + while(MIDI_Device_ReceiveEventPacket(&Keyboard_MIDI_Interface, &ReceivedMIDIEvent)) { + led_on(); + printf("MIDI: %02X %02X %02X\r\n", ReceivedMIDIEvent.Data1, ReceivedMIDIEvent.Data2, ReceivedMIDIEvent.Data3); + led_off(); + } + + uint8_t state = KEY_PIN & (1<= KEY_LP_MAX) { + MIDI_EventPacket_t* MIDIEvent = state ? &MIDIEventOff : &MIDIEventOn; + MIDI_Device_SendEventPacket(&Keyboard_MIDI_Interface, MIDIEvent); + MIDI_Device_Flush(&Keyboard_MIDI_Interface); + + printf("Key %s\r\n", state ? "released" : "pressed"); + + last_state = state; + lp_cnt = 0; + } + + +#if defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR) + if(USB_DeviceState == DEVICE_STATE_Unattached && USB_VBUS_GetStatus()) { + USB_Disable(); + USB_Init(); + } +#endif + + CDC_Device_USBTask(&VirtualSerial_CDC_Interface); + MIDI_Device_USBTask(&Keyboard_MIDI_Interface); + USB_USBTask(); + } +} -- cgit v1.2.3