/*
LUFA Library
- Copyright (C) Dean Camera, 2010.
-
+ Copyright (C) Dean Camera, 2012.
+
dean [at] fourwalledcubicle [dot] com
- www.fourwalledcubicle.com
+ www.lufa-lib.org
*/
/*
- Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+ Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
- Permission to use, copy, modify, distribute, and sell this
+ 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
+ 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
+ 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
*
* Header file for Descriptors.c.
*/
-
+
#ifndef _DESCRIPTORS_H_
#define _DESCRIPTORS_H_
#include <avr/pgmspace.h>
/* Macros: */
- /** Audio class descriptor subtype value for a Audio class specific header descriptor. */
- #define DSUBTYPE_AudioHeader 0x01
-
- /** 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 subtype value for a general Audio class specific descriptor. */
- #define DSUBTYPE_General 0x01
-
- /** Audio class descriptor jack type value for an embedded (logical) MIDI input or output jack. */
- #define JACKTYPE_EMBEDDED 0x01
+ /** Endpoint number of the MIDI streaming data IN endpoint, for device-to-host data transfers. */
+ #define MIDI_STREAM_IN_EPNUM 1
- /** Audio class descriptor jack type value for an external (physical) MIDI input or output jack. */
- #define JACKTYPE_EXTERNAL 0x02
-
/** Endpoint number of the MIDI streaming data OUT endpoint, for host-to-device data transfers. */
- #define MIDI_STREAM_OUT_EPNUM 1
-
- /** Endpoint number of the MIDI streaming data IN endpoint, for device-to-host data transfers. */
- #define MIDI_STREAM_IN_EPNUM 2
+ #define MIDI_STREAM_OUT_EPNUM 2
/** Endpoint size in bytes of the Audio isochronous streaming data IN and OUT endpoints. */
#define MIDI_STREAM_EPSIZE 64
-
- /* Type Defines: */
- /** Type define for an Audio class specific interface descriptor. This follows a regular interface descriptor to
- * supply extra information about the audio device's layout to the host. 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 control descriptors, including this descriptor */
-
- uint8_t InCollection; /**< Total number of audio class interfaces within this device */
- uint8_t InterfaceNumbers[1]; /**< Interface numbers of each audio interface */
- } USB_Audio_Interface_AC_t;
-
- /** 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_Audio_Interface_MIDI_AS_t;
-
- /** Type define for an Audio class specific endpoint descriptor. This contains a regular endpoint
- * descriptor with a few Audio-class specific extensions. See the USB Audio specification for more details.
- */
- typedef struct
- {
- USB_Descriptor_Endpoint_t Endpoint; /**< Standard endpoint descriptor describing the audio endpoint */
-
- uint8_t Refresh; /**< Always set to zero */
- uint8_t SyncEndpointNumber; /**< Endpoint address to send synchronization information to, if needed (zero otherwise) */
- } USB_Audio_StreamEndpoint_Std_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 Defines: */
/** Type define for the device configuration descriptor structure. This must be defined in the
* application code, as the configuration descriptor contains several sub-descriptors which
* vary between devices, and which describe the device's usage to the host.
*/
typedef struct
{
- USB_Descriptor_Configuration_Header_t Config;
- USB_Descriptor_Interface_t Audio_ControlInterface;
- USB_Audio_Interface_AC_t Audio_ControlInterface_SPC;
- USB_Descriptor_Interface_t Audio_StreamInterface;
- USB_Audio_Interface_MIDI_AS_t Audio_StreamInterface_SPC;
- USB_MIDI_In_Jack_t MIDI_In_Jack_Emb;
- USB_MIDI_In_Jack_t MIDI_In_Jack_Ext;
- USB_MIDI_Out_Jack_t MIDI_Out_Jack_Emb;
- USB_MIDI_Out_Jack_t MIDI_Out_Jack_Ext;
- USB_Audio_StreamEndpoint_Std_t MIDI_In_Jack_Endpoint;
- USB_MIDI_Jack_Endpoint_t MIDI_In_Jack_Endpoint_SPC;
- USB_Audio_StreamEndpoint_Std_t MIDI_Out_Jack_Endpoint;
- USB_MIDI_Jack_Endpoint_t MIDI_Out_Jack_Endpoint_SPC;
+ USB_Descriptor_Configuration_Header_t Config;
+
+ // MIDI Audio Control Interface
+ USB_Descriptor_Interface_t Audio_ControlInterface;
+ USB_Audio_Descriptor_Interface_AC_t Audio_ControlInterface_SPC;
+
+ // MIDI Audio Streaming Interface
+ USB_Descriptor_Interface_t Audio_StreamInterface;
+ USB_MIDI_Descriptor_AudioInterface_AS_t Audio_StreamInterface_SPC;
+ USB_MIDI_Descriptor_InputJack_t MIDI_In_Jack_Emb;
+ USB_MIDI_Descriptor_InputJack_t MIDI_In_Jack_Ext;
+ USB_MIDI_Descriptor_OutputJack_t MIDI_Out_Jack_Emb;
+ USB_MIDI_Descriptor_OutputJack_t MIDI_Out_Jack_Ext;
+ USB_Audio_Descriptor_StreamEndpoint_Std_t MIDI_In_Jack_Endpoint;
+ USB_MIDI_Descriptor_Jack_Endpoint_t MIDI_In_Jack_Endpoint_SPC;
+ USB_Audio_Descriptor_StreamEndpoint_Std_t MIDI_Out_Jack_Endpoint;
+ USB_MIDI_Descriptor_Jack_Endpoint_t MIDI_Out_Jack_Endpoint_SPC;
} USB_Descriptor_Configuration_t;
-
+
/* Function Prototypes: */
uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
const uint8_t wIndex,
ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3);
#endif
+