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/******************************************************************************
* The MIT License
*
* Copyright (c) 2011 LeafLabs LLC.
* Copyright (c) 2013 Magnus Lundin.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*****************************************************************************/
/**
* @file libmaple/include/libmaple/usb_midi.h
* @brief USB MIDI support
*
* IMPORTANT: this API is unstable, and may change without notice.
*/
#ifndef _LIBMAPLE_USB_MIDI_H_
#define _LIBMAPLE_USB_MIDI_H_
#include <libmaple/libmaple_types.h>
#include <libmaple/gpio.h>
#include <libmaple/usb.h>
#include <lgl/MinSysex.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef union {
uint8 byte[4];
uint32 data;
} USB_MIDI_Event_Packet;
/*
* USB MIDI Requests
*/
/*
* Descriptors, etc.
*/
#define USB_DESCRIPTOR_TYPE_CS_INTERFACE 0x24
#define USB_DESCRIPTOR_TYPE_CS_ENDPOINT 0x25
#define USB_DEVICE_CLASS_UNDEFINED 0x00
#define USB_DEVICE_CLASS_CDC 0x02
#define USB_DEVICE_SUBCLASS_UNDEFINED 0x00
#define USB_INTERFACE_CLASS_AUDIO 0x01
#define USB_INTERFACE_SUBCLASS_UNDEFINED 0x00
#define USB_INTERFACE_AUDIOCONTROL 0x01
#define USB_INTERFACE_AUDIOSTREAMING 0x02
#define USB_INTERFACE_MIDISTREAMING 0x03
/* MIDI Streaming class specific interfaces */
#define MIDI_IN_JACK 0x02
#define MIDI_OUT_JACK 0x03
#define MIDI_JACK_EMBEDDED 0x01
#define MIDI_JACK_EXTERNAL 0x02
#define AC_CS_INTERFACE_DESCRIPTOR_SIZE(DataSize) (8 + DataSize)
#define AC_CS_INTERFACE_DESCRIPTOR(DataSize) \
struct { \
uint8 bLength; \
uint8 bDescriptorType; \
uint8 SubType; \
uint16 bcdADC; \
uint16 wTotalLength; \
uint8 bInCollection; \
uint8 baInterfaceNr[DataSize]; \
} __packed
typedef struct {
uint8 bLength;
uint8 bDescriptorType;
uint8 SubType;
uint16 bcdADC;
uint16 wTotalLength;
} __packed MS_CS_INTERFACE_DESCRIPTOR;
typedef struct {
uint8 bLength;
uint8 bDescriptorType;
uint8 SubType;
uint8 bJackType;
uint8 bJackId;
uint8 iJack;
} __packed MIDI_IN_JACK_DESCRIPTOR;
#define MIDI_OUT_JACK_DESCRIPTOR_SIZE(DataSize) (7 + 2*DataSize)
#define MIDI_OUT_JACK_DESCRIPTOR(DataSize) \
struct { \
uint8 bLength; \
uint8 bDescriptorType; \
uint8 SubType; \
uint8 bJackType; \
uint8 bJackId; \
uint8 bNrInputPins; \
uint8 baSourceId[DataSize]; \
uint8 baSourcePin[DataSize]; \
uint8 iJack; \
} __packed
#define MS_CS_BULK_ENDPOINT_DESCRIPTOR_SIZE(DataSize) (4 + DataSize)
#define MS_CS_BULK_ENDPOINT_DESCRIPTOR(DataSize) \
struct { \
uint8 bLength; \
uint8 bDescriptorType; \
uint8 SubType; \
uint8 bNumEmbMIDIJack; \
uint8 baAssocJackID[DataSize]; \
} __packed
/*
* Endpoint configuration
*/
#define USB_MIDI_CTRL_ENDP 0
#define USB_MIDI_CTRL_RX_ADDR 0x40
#define USB_MIDI_CTRL_TX_ADDR 0x80
#define USB_MIDI_CTRL_EPSIZE 0x40
#define USB_MIDI_TX_ENDP 1
#define USB_MIDI_TX_ADDR 0xC0
#define USB_MIDI_TX_EPSIZE 0x40
#define USB_MIDI_RX_ENDP 2
#define USB_MIDI_RX_ADDR 0x100
#define USB_MIDI_RX_EPSIZE 0x40
#ifndef __cplusplus
#define USB_MIDI_DECLARE_DEV_DESC(vid, pid) \
{ \
.bLength = sizeof(usb_descriptor_device), \
.bDescriptorType = USB_DESCRIPTOR_TYPE_DEVICE, \
.bcdUSB = 0x0110, \
.bDeviceClass = USB_DEVICE_CLASS_UNDEFINED, \
.bDeviceSubClass = USB_DEVICE_SUBCLASS_UNDEFINED, \
.bDeviceProtocol = 0x00, \
.bMaxPacketSize0 = 0x40, \
.idVendor = vid, \
.idProduct = pid, \
.bcdDevice = 0x0200, \
.iManufacturer = 0x01, \
.iProduct = 0x02, \
.iSerialNumber = 0x00, \
.bNumConfigurations = 0x01, \
}
#endif
/*
* Sysex Stuff.
*/
#define SYSEX_BUFFER_LENGTH 256
/*
* MIDI interface
*/
void usb_midi_enable(gpio_dev*, uint8);
void usb_midi_disable(gpio_dev*, uint8);
bogus
void usb_midi_putc(char ch);
uint32 usb_midi_tx(const uint32* buf, uint32 len);
uint32 usb_midi_rx(const uint32* buf, uint32 len);
uint32 usb_midi_peek(const uint32* buf, uint32 len);
uint32 usb_midi_data_available(void); /* in RX buffer */
uint16 usb_midi_get_pending(void);
uint8 usb_midi_is_transmitting(void);
#ifdef __cplusplus
}
#endif
#endif
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