You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
156 lines
7.2 KiB
156 lines
7.2 KiB
/*
|
|
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.
|
|
*/
|
|
|
|
/** \ingroup Group_USBClassMIDI
|
|
* @{
|
|
*/
|
|
|
|
#ifndef _MIDI_CLASS_COMMON_H_
|
|
#define _MIDI_CLASS_COMMON_H_
|
|
|
|
/* Includes: */
|
|
#include "../../USB.h"
|
|
#include "Audio.h"
|
|
|
|
#include <string.h>
|
|
|
|
/* Enable C linkage for C++ Compilers: */
|
|
#if defined(__cplusplus)
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* Macros: */
|
|
/** Audio class descriptor subtype value for a Audio class specific MIDI input jack descriptor. */
|
|
#define DSUBTYPE_InputJack 0x02
|
|
|
|
/** Audio class descriptor subtype value for a Audio class specific MIDI output jack descriptor. */
|
|
#define DSUBTYPE_OutputJack 0x03
|
|
|
|
/** Audio class descriptor jack type value for an embedded (logical) MIDI input or output jack. */
|
|
#define MIDI_JACKTYPE_EMBEDDED 0x01
|
|
|
|
/** Audio class descriptor jack type value for an external (physical) MIDI input or output jack. */
|
|
#define MIDI_JACKTYPE_EXTERNAL 0x02
|
|
|
|
/** MIDI command for a note on (activation) event */
|
|
#define MIDI_COMMAND_NOTE_ON 0x90
|
|
|
|
/** MIDI command for a note off (deactivation) event */
|
|
#define MIDI_COMMAND_NOTE_OFF 0x80
|
|
|
|
/** Standard key press velocity value used for all note events */
|
|
#define MIDI_STANDARD_VELOCITY 64
|
|
|
|
/** Convenience macro. MIDI channels are numbered from 1-10 (natural numbers) however the logical channel
|
|
* addresses are zero-indexed. This converts a natural MIDI channel number into the logical channel address.
|
|
*
|
|
* \param channel MIDI channel number to address
|
|
*/
|
|
#define MIDI_CHANNEL(channel) (channel - 1)
|
|
|
|
/* Type Defines: */
|
|
/** Type define for an Audio class specific MIDI streaming interface descriptor. This indicates to the host
|
|
* how MIDI the specification compliance of the device and the total length of the Audio class specific descriptors.
|
|
* See the USB Audio specification for more details.
|
|
*/
|
|
typedef struct
|
|
{
|
|
USB_Descriptor_Header_t Header; /**< Regular descriptor header containing the descriptor's type and length */
|
|
uint8_t Subtype; /**< Sub type value used to distinguish between audio class specific descriptors */
|
|
|
|
uint16_t AudioSpecification; /**< Binary coded decimal value, indicating the supported Audio Class specification version */
|
|
uint16_t TotalLength; /**< Total length of the Audio class specific descriptors, including this descriptor */
|
|
} USB_AudioInterface_MIDI_AS_t;
|
|
|
|
/** Type define for an Audio class specific MIDI IN jack. This gives information to the host on a MIDI input, either
|
|
* a physical input jack, or a logical jack (receiving input data internally, or from the host via an endpoint).
|
|
*/
|
|
typedef struct
|
|
{
|
|
USB_Descriptor_Header_t Header; /**< Regular descriptor header containing the descriptor's type and length */
|
|
uint8_t Subtype; /**< Sub type value used to distinguish between audio class specific descriptors */
|
|
|
|
uint8_t JackType; /**< Type of jack, one of the JACKTYPE_* mask values */
|
|
uint8_t JackID; /**< ID value of this jack - must be a unique value within the device */
|
|
|
|
uint8_t JackStrIndex; /**< Index of a string descriptor describing this descriptor within the device */
|
|
} USB_MIDI_In_Jack_t;
|
|
|
|
/** Type define for an Audio class specific MIDI OUT jack. This gives information to the host on a MIDI output, either
|
|
* a physical output jack, or a logical jack (sending output data internally, or to the host via an endpoint).
|
|
*/
|
|
typedef struct
|
|
{
|
|
USB_Descriptor_Header_t Header; /**< Regular descriptor header containing the descriptor's type and length */
|
|
uint8_t Subtype; /**< Sub type value used to distinguish between audio class specific descriptors */
|
|
|
|
uint8_t JackType; /**< Type of jack, one of the JACKTYPE_* mask values */
|
|
uint8_t JackID; /**< ID value of this jack - must be a unique value within the device */
|
|
|
|
uint8_t NumberOfPins; /**< Number of output channels within the jack, either physical or logical */
|
|
uint8_t SourceJackID[1]; /**< ID of each output pin's source data jack */
|
|
uint8_t SourcePinID[1]; /**< Pin number in the input jack of each output pin's source data */
|
|
|
|
uint8_t JackStrIndex; /**< Index of a string descriptor describing this descriptor within the device */
|
|
} USB_MIDI_Out_Jack_t;
|
|
|
|
/** Type define for an Audio class specific extended MIDI jack endpoint descriptor. This contains extra information
|
|
* on the usage of MIDI endpoints used to stream MIDI events in and out of the USB Audio device, and follows an Audio
|
|
* class specific extended MIDI endpoint descriptor. See the USB Audio specification for more details.
|
|
*/
|
|
typedef struct
|
|
{
|
|
USB_Descriptor_Header_t Header; /**< Regular descriptor header containing the descriptor's type and length */
|
|
uint8_t Subtype; /**< Sub type value used to distinguish between audio class specific descriptors */
|
|
|
|
uint8_t TotalEmbeddedJacks; /**< Total number of jacks inside this endpoint */
|
|
uint8_t AssociatedJackID[1]; /**< IDs of each jack inside the endpoint */
|
|
} USB_MIDI_Jack_Endpoint_t;
|
|
|
|
/** Type define for a USB MIDI event packet, used to encapsulate sent and received MIDI messages from a USB MIDI interface. */
|
|
typedef struct
|
|
{
|
|
unsigned char Command : 4; /**< MIDI command being sent or received in the event packet */
|
|
unsigned char CableNumber : 4; /**< Virtual cable number of the event being sent or received in the given MIDI interface */
|
|
|
|
uint8_t Data1; /**< First byte of data in the MIDI event */
|
|
uint8_t Data2; /**< Second byte of data in the MIDI event */
|
|
uint8_t Data3; /**< Third byte of data in the MIDI event */
|
|
} USB_MIDI_EventPacket_t;
|
|
|
|
/* Disable C linkage for C++ Compilers: */
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
|
|
#endif
|
|
|
|
/** @} */
|