xusb_class_composite.c File Reference

Overview

This file contains the implementation of the composite device specific class code for the example.

  MODIFICATION HISTORY:

  Ver   Who  Date     Changes



  1.0   rb   05/03/18 First release
  1.5   vak  13/02/19 Added support for versal
  1.5   vak  03/25/19 Fixed incorrect data_alignment pragma directive for IAR

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Functions
s32	Usb_DfuSetState (struct dfu_if *DFU, u8 dfu_state)
	This function handles setting of DFU state. More...
void	USB_DfuSetDwloadState (struct dfu_if *DFU, u8 *status)
	This function updates the current state while downloading a file. More...
void	USB_DfuGetStatus (struct dfu_if *DFU, u8 *status)
	This function handles getting of DFU status. More...
void	Usb_DisconnectHandler (struct Usb_DevData *InstancePtr)
	This function handles USB disconnect, called from driver. More...
void	Usb_ResetHandler (struct Usb_DevData *InstancePtr)
	This function handles USB reset, called from driver. More...
void	Usb_SetIntf (struct Usb_DevData *InstancePtr, SetupPacket *SetupData)
	This function handles set interface request. More...
void	Usb_StorageClassReq (struct Usb_DevData *InstancePtr, SetupPacket *SetupData)
	This function is class handler for Mass storage and is called when Setup packet received is for Class request(not Standard Device request) More...
void	Usb_KeyboardClassReq (struct Usb_DevData *InstancePtr, SetupPacket *SetupData)
	This function is class handler for HID and is called when Setup packet received is for Class request(not a Standard Device request) More...
void	Usb_ClassReq (struct Usb_DevData *InstancePtr, SetupPacket *SetupData)
	This function is class request handler for composite device Setup packet received is for Class request(not a Standard Device request) More...
void	ParseCBW (struct Usb_DevData *InstancePtr, struct storage_if *f)
	This function handles Reduced Block Command (RBC) requests from the host. More...
void	SendCSW (struct Usb_DevData *InstancePtr, struct storage_if *f, u32 Length)
	This function is used to send SCSI Command Status Wrapper to Host. More...

Function Documentation

void ParseCBW	(	struct Usb_DevData *	InstancePtr,
		struct storage_if *	f
	)

This function handles Reduced Block Command (RBC) requests from the host.

Parameters

InstancePtr	is a pointer to Usb_DevData instance of the controller.
f	is a pointer to storage interface

Returns

None.

Note

None.

Referenced by prvSCSITask().

void SendCSW	(	struct Usb_DevData *	InstancePtr,
		struct storage_if *	f,
		u32	Length
	)

This function is used to send SCSI Command Status Wrapper to Host.

Parameters

InstancePtr	is pointer to Usb_DevData instance.
Length	is the data residue.

Returns

None

Note

None

Referenced by ParseCBW(), and prvSCSITask().

void Usb_ClassReq	(	struct Usb_DevData *	InstancePtr,
		SetupPacket *	SetupData
	)

This function is class request handler for composite device Setup packet received is for Class request(not a Standard Device request)

Parameters

InstancePtr	is pointer to Usb_DevData instance.
SetupData	is pointer to SetupPacket received.

Returns

None

Note

None.

References Usb_KeyboardClassReq(), and Usb_StorageClassReq().

void USB_DfuGetStatus	(	struct dfu_if *	DFU,
		u8 *	status
	)

This function handles getting of DFU status.

Parameters

DFU	is a pointer to DFU instance of the controller
status	is the pointer of the DFU status

Returns

None

Note

None.

References USB_DfuSetDwloadState().

void USB_DfuSetDwloadState	(	struct dfu_if *	DFU,
		u8 *	status
	)

This function updates the current state while downloading a file.

Parameters

DFU	is a pointer to DFU instance of the controller
status	is a pointer of the DFU status

Note

None.

s32 Usb_DfuSetState	(	struct dfu_if *	DFU,
		u8	dfu_state
	)

This function handles setting of DFU state.

Parameters

DFU	is a pointer to DFU instance of the controller
dfu_state	is a value of the DFU state to be set

Returns

- XST_SUCCESS if the function is successful.

• XST_FAILURE if an Error occurred.

Note

None.

void Usb_DisconnectHandler

(

struct Usb_DevData *

InstancePtr

)

This function handles USB disconnect, called from driver.

Parameters

InstancePtr

is a pointer to Usb_DevData instance of the controller

Returns

None.

Note

None.

References Usb_DevData::PrivateData.

void Usb_KeyboardClassReq	(	struct Usb_DevData *	InstancePtr,
		SetupPacket *	SetupData
	)

This function is class handler for HID and is called when Setup packet received is for Class request(not a Standard Device request)

Parameters

InstancePtr	is pointer to Usb_DevData instance.
SetupData	is pointer to SetupPacket received.

Returns

None

Note

None.

References Usb_DevData::PrivateData.

Referenced by Usb_ClassReq().

void Usb_ResetHandler

(

struct Usb_DevData *

InstancePtr

)

This function handles USB reset, called from driver.

Parameters

InstancePtr

is a pointer to Usb_DevData instance of the controller

Returns

None.

Note

None.

References Usb_DevData::PrivateData.

void Usb_SetIntf	(	struct Usb_DevData *	InstancePtr,
		SetupPacket *	SetupData
	)

This function handles set interface request.

Parameters

InstancePtr	is a pointer to Usb_DevData instance of the controller
SetupData	is a pointer to setup token of control transfer

Returns

None.

Note

None.

References Usb_DevData::PrivateData, SetEpInterval(), and Usb_DfuSetState().

void Usb_StorageClassReq	(	struct Usb_DevData *	InstancePtr,
		SetupPacket *	SetupData
	)

This function is class handler for Mass storage and is called when Setup packet received is for Class request(not Standard Device request)

Parameters

InstancePtr	is pointer to Usb_DevData instance.
SetupData	is pointer to SetupPacket received.

Returns

None

Note

None.

References Usb_DevData::PrivateData.

Referenced by Usb_ClassReq().