nRF52840 only: USB Audio class internals. More...

Data Structures
struct	app_usbd_audio_inst_t
	Audio class part of class instance data. More...

struct	app_usbd_audio_req_t
	Audio class specific request handled via control endpoint. More...

struct	app_usbd_audio_ctx_t
	Audio class context. More...

Macros
#define	APP_USBD_AUDIO_CONFIG (iface_control, iface_stream)
	Audio class configuration macro. More...

#define	APP_USBD_AUDIO_CONFIG_IN (iface_control, iface_stream_in) ((iface_control), (iface_stream_in, NRF_DRV_USBD_EPIN8 ))
	Only IN audio stream configuration. More...

#define	APP_USBD_AUDIO_CONFIG_OUT (iface_control, iface_stream_out) ((iface_control), (iface_stream_out, NRF_DRV_USBD_EPOUT8 ))
	Only OUT audio stream configuration. More...

#define	APP_USBD_AUDIO_INSTANCE_SPECIFIC_DEC app_usbd_audio_inst_t inst;
	Specific class constant data for audio class. More...

#define	APP_USBD_AUDIO_INST_CONFIG (descriptors, user_event_handler)
	Configures audio class instance. More...

#define	APP_USBD_AUDIO_DATA_SPECIFIC_DEC app_usbd_audio_ctx_t ctx;
	Specific class data for audio class. More...

#define	APP_USBD_AUDIO_DSC_CONFIG (interface_number,...)
	Audio class descriptors config macro. More...

#define	APP_USBD_AUDIO_GLOBAL_DEF_INTERNAL (instance_name,interfaces_configs,user_ev_handler,raw_descriptors)
	Global definition of app_usbd_audio_t class. More...

Typedefs
typedef void(*	app_usbd_audio_user_ev_handler_t )( app_usbd_class_inst_t const *p_inst, enum app_usbd_audio_user_event_e event)
	User event handler. More...

Enumerations
enum	app_usbd_audio_class_req_target_t { APP_USBD_AUDIO_CLASS_REQ_IN , APP_USBD_AUDIO_CLASS_REQ_OUT , APP_USBD_AUDIO_EP_REQ_IN , APP_USBD_AUDIO_EP_REQ_OUT }
	Audio class request target. More...

Functions
	APP_USBD_CLASS_FORWARD (app_usbd_audio)
	Forward declaration of type defined by APP_USBD_CLASS_TYPEDEF in audio class.

Variables
const app_usbd_class_methods_t	app_usbd_audio_class_methods
	Public audio class interface.

Detailed Description

nRF52840 only: USB Audio class internals.

Macro Definition Documentation

#define APP_USBD_AUDIO_CONFIG	(	iface_control,
		iface_stream
	)

Value:

((iface_control), \

(iface_stream, 0))

Audio class configuration macro.

Used by APP_USBD_AUDIO_GLOBAL_DEF

Parameters

iface_control	Interface number of audio control
iface_stream	Interface number of audio stream

#define APP_USBD_AUDIO_CONFIG_IN	(	iface_control,
		iface_stream_in
	)	((iface_control), (iface_stream_in, NRF_DRV_USBD_EPIN8 ))

Only IN audio stream configuration.

Parameters

iface_control	Interface number of audio control
iface_stream_in	Interface number of audio stream on IN endpoint

#define APP_USBD_AUDIO_CONFIG_OUT	(	iface_control,
		iface_stream_out
	)	((iface_control), (iface_stream_out, NRF_DRV_USBD_EPOUT8 ))

Only OUT audio stream configuration.

Parameters

iface_control	Interface number of audio control
iface_stream_out	Interface number of audio stream on OUT endpoint

#define APP_USBD_AUDIO_DATA_SPECIFIC_DEC app_usbd_audio_ctx_t ctx;

Specific class data for audio class.

app_usbd_audio_ctx_t

#define APP_USBD_AUDIO_DSC_CONFIG	(	interface_number,
		...
	)

Value:

         {              \
        
         APP_USBD_AUDIO_INTERFACE_DSC(interface_number,                      \
        
         0,                                     \
        
         0,                                     \
        
          APP_USBD_AUDIO_SUBCLASS_AUDIOCONTROL
         
         )  \
        
         }

Audio class descriptors config macro.

Parameters

interface_number	Interface number
...	Extracted endpoint list

#define APP_USBD_AUDIO_GLOBAL_DEF_INTERNAL	(	instance_name,
		interfaces_configs,
		user_ev_handler,
		raw_descriptors
	)

Value:

         
          APP_USBD_CLASS_INST_GLOBAL_DEF
         
         (                             \
        
         instance_name,                                          \
        
         app_usbd_audio,                                         \
        
         &
         
          app_usbd_audio_class_methods
         
         ,                          \
        
         interfaces_configs,                                     \
        
         (
         
          APP_USBD_AUDIO_INST_CONFIG
         
         (raw_descriptors,            \
        
         user_ev_handler))           \
        
         )

Global definition of app_usbd_audio_t class.

#define APP_USBD_AUDIO_INST_CONFIG	(	descriptors,
		user_event_handler
	)

Value:

         .inst = {                                                       \
        
         .p_raw_desc = descriptors,                                 \
        
         .raw_desc_size =
         
          sizeof
         
         (descriptors),                      \
        
         .user_ev_handler = user_event_handler,                     \
        
         }

Configures audio class instance.

Parameters

descriptors	Mass storage class descriptors (raw table)
user_event_handler	User event handler

#define APP_USBD_AUDIO_INSTANCE_SPECIFIC_DEC app_usbd_audio_inst_t inst;

Specific class constant data for audio class.

app_usbd_audio_inst_t

Typedef Documentation

typedef void(* app_usbd_audio_user_ev_handler_t)( app_usbd_class_inst_t const *p_inst, enum app_usbd_audio_user_event_e event)

User event handler.

Parameters

[in]	p_inst	Class instance
[in]	event	User event

Enumeration Type Documentation

enum app_usbd_audio_class_req_target_t

Audio class request target.

Enumerator
APP_USBD_AUDIO_CLASS_REQ_IN	Audio class request IN
APP_USBD_AUDIO_CLASS_REQ_OUT	Audio class request OUT
APP_USBD_AUDIO_EP_REQ_IN	Audio class endpoint request IN
APP_USBD_AUDIO_EP_REQ_OUT	Audio class endpoint request OUT

USB Audio internals

nRF5 SDK v12.2.0

Data Structures

Macros

Typedefs

Enumerations

Functions

Variables

Detailed Description

Macro Definition Documentation

Typedef Documentation

Enumeration Type Documentation