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Diffstat (limited to 'LUFA/Drivers/USB/Class/Common/MIDIClassCommon.h')
| -rw-r--r-- | LUFA/Drivers/USB/Class/Common/MIDIClassCommon.h | 363 |
1 files changed, 363 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/Class/Common/MIDIClassCommon.h b/LUFA/Drivers/USB/Class/Common/MIDIClassCommon.h new file mode 100644 index 0000000000..b6414bc06b --- /dev/null +++ b/LUFA/Drivers/USB/Class/Common/MIDIClassCommon.h @@ -0,0 +1,363 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2017. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, distribute, and sell this + software and its documentation for any purpose is hereby granted + without fee, 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 disclaims 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 + * \brief Common definitions and declarations for the library USB MIDI Class driver. + * + * Common definitions and declarations for the library USB MIDI Class driver. + * + * \note This file should not be included directly. It is automatically included as needed by the USB module driver + * dispatch header located in LUFA/Drivers/USB.h. + */ + +/** \ingroup Group_USBClassMIDI + * \defgroup Group_USBClassMIDICommon Common Class Definitions + * + * \section Sec_USBClassMIDICommon_ModDescription Module Description + * Constants, Types and Enum definitions that are common to both Device and Host modes for the USB + * MIDI Class. + * + * @{ + */ + +#ifndef _MIDI_CLASS_COMMON_H_ +#define _MIDI_CLASS_COMMON_H_ + + /* Macros: */ + #define __INCLUDE_FROM_AUDIO_DRIVER + + /* Includes: */ + #include "../../Core/StdDescriptors.h" + #include "AudioClassCommon.h" + + /* Enable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + extern "C" { + #endif + + /* Preprocessor Checks: */ + #if !defined(__INCLUDE_FROM_MIDI_DRIVER) + #error Do not include this file directly. Include LUFA/Drivers/USB.h instead. + #endif + + /* Macros: */ + /** \name MIDI Command Values + * See http://www.midi.org/techspecs/midimessages.php for more information. + */ + //@{ + /** MIDI command for System Exclusive (SysEx) single event that has one byte of data total. */ + #define MIDI_COMMAND_SYSEX_1BYTE MIDI_COMMAND_SYSEX_END_1BYTE + + /** MIDI command for System Exclusive (SysEx) single event that has two bytes of data total. */ + #define MIDI_COMMAND_SYSEX_2BYTE 0x20 + + /** MIDI command for System Exclusive (SysEx) single event that has three bytes of data total. */ + #define MIDI_COMMAND_SYSEX_3BYTE 0x30 + + /** MIDI command for System Exclusive (SysEx) stream event that has at least four bytes of data total. */ + #define MIDI_COMMAND_SYSEX_START_3BYTE 0x40 + + /** MIDI command for System Exclusive (SysEx) stream event terminator with one remaining data byte. */ + #define MIDI_COMMAND_SYSEX_END_1BYTE 0x50 + + /** MIDI command for System Exclusive (SysEx) stream event terminator with two remaining data bytes. */ + #define MIDI_COMMAND_SYSEX_END_2BYTE 0x60 + + /** MIDI command for System Exclusive (SysEx) stream event terminator with three remaining data bytes. */ + #define MIDI_COMMAND_SYSEX_END_3BYTE 0x70 + + /** MIDI command for a note off (deactivation) event. */ + #define MIDI_COMMAND_NOTE_OFF 0x80 + + /** MIDI command for a note on (activation) event. */ + #define MIDI_COMMAND_NOTE_ON 0x90 + + /** MIDI command for a note pressure change event. */ + #define MIDI_COMMAND_NOTE_PRESSURE 0xA0 + + /** MIDI command for a control change event. */ + #define MIDI_COMMAND_CONTROL_CHANGE 0xB0 + + /** MIDI command for a control change event. */ + #define MIDI_COMMAND_PROGRAM_CHANGE 0xC0 + + /** MIDI command for a channel pressure change event. */ + #define MIDI_COMMAND_CHANNEL_PRESSURE 0xD0 + + /** MIDI command for a pitch change event. */ + #define MIDI_COMMAND_PITCH_WHEEL_CHANGE 0xE0 + //@} + + /** 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[in] channel MIDI channel number to address. + * + * \return Constructed MIDI channel ID. + */ + #define MIDI_CHANNEL(channel) ((channel) - 1) + + /** Constructs a MIDI event ID from a given MIDI command and a virtual MIDI cable index. This can then be + * used to create and decode \ref MIDI_EventPacket_t MIDI event packets. + * + * \param[in] virtualcable Index of the virtual MIDI cable the event relates to + * \param[in] command MIDI command to send through the virtual MIDI cable + * + * \return Constructed MIDI event ID. + */ + #define MIDI_EVENT(virtualcable, command) (((virtualcable) << 4) | ((command) >> 4)) + + /* Enums: */ + /** Enum for the possible MIDI jack types in a MIDI device jack descriptor. */ + enum MIDI_JackTypes_t + { + MIDI_JACKTYPE_Embedded = 0x01, /**< MIDI class descriptor jack type value for an embedded (logical) MIDI input or output jack. */ + MIDI_JACKTYPE_External = 0x02, /**< MIDI class descriptor jack type value for an external (physical) MIDI input or output jack. */ + }; + + /* Type Defines: */ + /** \brief MIDI class-specific Streaming Interface Descriptor (LUFA naming conventions). + * + * 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. + * + * \see \ref USB_MIDI_StdDescriptor_AudioInterface_AS_t for the version of this type with standard element names. + * + * \note Regardless of CPU architecture, these values should be stored as little endian. + */ + 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. + * + * \see \ref VERSION_BCD() utility macro. + */ + uint16_t TotalLength; /**< Total length of the Audio class-specific descriptors, including this descriptor. */ + } ATTR_PACKED USB_MIDI_Descriptor_AudioInterface_AS_t; + + /** \brief MIDI class-specific Streaming Interface Descriptor (USB-IF naming conventions). + * + * 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. + * + * \see \ref USB_MIDI_Descriptor_AudioInterface_AS_t for the version of this type with non-standard LUFA specific + * element names. + * + * \note Regardless of CPU architecture, these values should be stored as little endian. + */ + typedef struct + { + uint8_t bLength; /**< Size of the descriptor, in bytes. */ + uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value + * given by the specific class. + */ + + uint8_t bDescriptorSubtype; /**< Sub type value used to distinguish between audio class-specific descriptors. */ + + uint16_t bcdMSC; /**< Binary coded decimal value, indicating the supported MIDI Class specification version. + * + * \see \ref VERSION_BCD() utility macro. + */ + uint16_t wTotalLength; /**< Total length of the Audio class-specific descriptors, including this descriptor. */ + } ATTR_PACKED USB_MIDI_StdDescriptor_AudioInterface_AS_t; + + /** \brief MIDI class-specific Input Jack Descriptor (LUFA naming conventions). + * + * 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). + * + * \see \ref USB_MIDI_StdDescriptor_InputJack_t for the version of this type with standard element names. + * + * \note Regardless of CPU architecture, these values should be stored as little endian. + */ + 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 \c 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. */ + } ATTR_PACKED USB_MIDI_Descriptor_InputJack_t; + + /** \brief MIDI class-specific Input Jack Descriptor (USB-IF naming conventions). + * + * 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). + * + * \see \ref USB_MIDI_Descriptor_InputJack_t for the version of this type with non-standard LUFA specific + * element names. + * + * \note Regardless of CPU architecture, these values should be stored as little endian. + */ + typedef struct + { + uint8_t bLength; /**< Size of the descriptor, in bytes. */ + uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value + * given by the specific class. + */ + + uint8_t bDescriptorSubtype; /**< Sub type value used to distinguish between audio class-specific descriptors. */ + + uint8_t bJackType; /**< Type of jack, one of the \c JACKTYPE_* mask values. */ + uint8_t bJackID; /**< ID value of this jack - must be a unique value within the device. */ + + uint8_t iJack; /**< Index of a string descriptor describing this descriptor within the device. */ + } ATTR_PACKED USB_MIDI_StdDescriptor_InputJack_t; + + /** \brief MIDI class-specific Output Jack Descriptor (LUFA naming conventions). + * + * 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). + * + * \see \ref USB_MIDI_StdDescriptor_OutputJack_t for the version of this type with standard element names. + * + * \note Regardless of CPU architecture, these values should be stored as little endian. + */ + 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 \c 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. */ + } ATTR_PACKED USB_MIDI_Descriptor_OutputJack_t; + + /** \brief MIDI class-specific Output Jack Descriptor (USB-IF naming conventions). + * + * 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). + * + * \see \ref USB_MIDI_Descriptor_OutputJack_t for the version of this type with non-standard LUFA specific + * element names. + * + * \note Regardless of CPU architecture, these values should be stored as little endian. + */ + typedef struct + { + uint8_t bLength; /**< Size of the descriptor, in bytes. */ + uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value + * given by the specific class. + */ + + uint8_t bDescriptorSubtype; /**< Sub type value used to distinguish between audio class-specific descriptors. */ + + uint8_t bJackType; /**< Type of jack, one of the \c JACKTYPE_* mask values. */ + uint8_t bJackID; /**< ID value of this jack - must be a unique value within the device. */ + + uint8_t bNrInputPins; /**< Number of output channels within the jack, either physical or logical. */ + uint8_t baSourceID[1]; /**< ID of each output pin's source data jack. */ + uint8_t baSourcePin[1]; /**< Pin number in the input jack of each output pin's source data. */ + + uint8_t iJack; /**< Index of a string descriptor describing this descriptor within the device. */ + } ATTR_PACKED USB_MIDI_StdDescriptor_OutputJack_t; + + /** \brief Audio class-specific Jack Endpoint Descriptor (LUFA naming conventions). + * + * 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. + * + * \see \ref USB_MIDI_StdDescriptor_Jack_Endpoint_t for the version of this type with standard element names. + * + * \note Regardless of CPU architecture, these values should be stored as little endian. + */ + 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. */ + } ATTR_PACKED USB_MIDI_Descriptor_Jack_Endpoint_t; + + /** \brief Audio class-specific Jack Endpoint Descriptor (USB-IF naming conventions). + * + * 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. + * + * \see \ref USB_MIDI_Descriptor_Jack_Endpoint_t for the version of this type with non-standard LUFA specific + * element names. + * + * \note Regardless of CPU architecture, these values should be stored as little endian. + */ + typedef struct + { + uint8_t bLength; /**< Size of the descriptor, in bytes. */ + uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value + * given by the specific class. + */ + + uint8_t bDescriptorSubtype; /**< Sub type value used to distinguish between audio class-specific descriptors. */ + + uint8_t bNumEmbMIDIJack; /**< Total number of jacks inside this endpoint. */ + uint8_t bAssocJackID[1]; /**< IDs of each jack inside the endpoint. */ + } ATTR_PACKED USB_MIDI_StdDescriptor_Jack_Endpoint_t; + + /** \brief MIDI Class Driver Event Packet. + * + * Type define for a USB MIDI event packet, used to encapsulate sent and received MIDI messages from a USB MIDI interface. + * + * \note Regardless of CPU architecture, these values should be stored as little endian. + */ + typedef struct + { + uint8_t Event; /**< MIDI event type, constructed with the \ref MIDI_EVENT() macro. */ + + 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. */ + } ATTR_PACKED MIDI_EventPacket_t; + + /* Disable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + } + #endif + +#endif + +/** @} */ + |