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Diffstat (limited to 'LUFA/Drivers/USB/Class/Common/MIDI.h')
| -rw-r--r-- | LUFA/Drivers/USB/Class/Common/MIDI.h | 293 |
1 files changed, 293 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/Class/Common/MIDI.h b/LUFA/Drivers/USB/Class/Common/MIDI.h new file mode 100644 index 0000000..4a3be81 --- /dev/null +++ b/LUFA/Drivers/USB/Class/Common/MIDI.h @@ -0,0 +1,293 @@ +/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2010.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2010 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 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
+ * \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 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 "../../HighLevel/StdDescriptors.h"
+ #include "Audio.h"
+
+ #include <string.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 */
+ //@{
+ /** 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[in] channel MIDI channel number to address.
+ */
+ #define MIDI_CHANNEL(channel) ((channel) - 1)
+
+ /* 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.
+ */
+ 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_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.
+ */
+ 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. */
+ uint16_t wTotalLength; /**< Total length of the Audio class-specific descriptors, including this descriptor. */
+ } 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.
+ */
+ 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_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.
+ */
+ 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 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. */
+ } 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.
+ */
+ 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_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.
+ */
+ 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 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. */
+ } 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.
+ */
+ 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_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.
+ */
+ 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. */
+ } 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.
+ */
+ typedef struct
+ {
+ unsigned char Command : 4; /**< Upper nibble of the 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. */
+ } MIDI_EventPacket_t;
+
+ /* Disable C linkage for C++ Compilers: */
+ #if defined(__cplusplus)
+ }
+ #endif
+
+#endif
+
+/** @} */
+
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