ROM based class audio

Detailed Description

Functions
void	UsbdAdc_Init (USB_ClassInfo_Audio_Device_t *AudioInterface)
	Initialize ROM based audio device class.
void	UsbdAdc_start_xfr (void)
	Start streaming audio data.
void	UsbdAdc_stop_xfr (void)
	Stop streaming audio data.
ErrorCode_t	USB_Interface_Event (USBD_HANDLE_T hUsb)
	Determind start or stop transfer audio data.
ErrorCode_t	UsbdAdc_ISO_Hdlr (USBD_HANDLE_T hUsb, void *data, uint32_t event)
	Handle response to IN isochronous coming packets.
ErrorCode_t	UsbdAdc_ep0_hdlr (USBD_HANDLE_T hUsb, void *data, uint32_t event)
	Handle response to standard requests (chapter9) from host.

Function Documentation

ErrorCode_t USB_Interface_Event

(

USBD_HANDLE_T

hUsb

)

Determind start or stop transfer audio data.

Parameters

hUsb	: Global USB ROM based handle variable

Returns

ErrorCode_t : LPC_OK for success

ErrorCode_t UsbdAdc_ep0_hdlr	(	USBD_HANDLE_T	hUsb,
		void *	data,
		uint32_t	event
	)

Handle response to standard requests (chapter9) from host.

Parameters

hUsb	: Global USB ROM based handle variable
data	: no used
event	: USB_EVT_OUT, USB_EVT_SETUP

Returns

ErrorCode_t : LPC_OK for success, ERR_USBD_UNHANDLED otherwise

void UsbdAdc_Init

(

USB_ClassInfo_Audio_Device_t *

AudioInterface

)

Initialize ROM based audio device class.

Returns

Nothing

ErrorCode_t UsbdAdc_ISO_Hdlr	(	USBD_HANDLE_T	hUsb,
		void *	data,
		uint32_t	event
	)

Handle response to IN isochronous coming packets.

Parameters

hUsb	: Global USB ROM based handle variable
data	: Pointer point to buffer storing received data
event	: USB_EVT_IN only acceptable value

Returns

ErrorCode_t : LPC_OK for success

void UsbdAdc_start_xfr

(

void

)

Start streaming audio data.

Returns

Nothing

void UsbdAdc_stop_xfr

(

void

)

Stop streaming audio data.

Returns

Nothing