USBHost class This class is a singleton. More...

#include <USBHost.h>

Data Structures
class	Lock
	Instantiate to protect USB thread from accessing shared objects (USBConnectedDevices and Interfaces) More...
Public Member Functions
USB_TYPE	controlRead (USBDeviceConnected dev, uint8_t requestType, uint8_t request, uint32_t value, uint32_t index, uint8_t buf, uint32_t len)
	Control read: setup stage, data stage and status stage.
USB_TYPE	controlWrite (USBDeviceConnected dev, uint8_t requestType, uint8_t request, uint32_t value, uint32_t index, uint8_t buf, uint32_t len)
	Control write: setup stage, data stage and status stage.
USB_TYPE	bulkRead (USBDeviceConnected dev, USBEndpoint ep, uint8_t *buf, uint32_t len, bool blocking=true)
	Bulk read.
USB_TYPE	bulkWrite (USBDeviceConnected dev, USBEndpoint ep, uint8_t *buf, uint32_t len, bool blocking=true)
	Bulk write.
USB_TYPE	interruptRead (USBDeviceConnected dev, USBEndpoint ep, uint8_t *buf, uint32_t len, bool blocking=true)
	Interrupt read.
USB_TYPE	interruptWrite (USBDeviceConnected dev, USBEndpoint ep, uint8_t *buf, uint32_t len, bool blocking=true)
	Interrupt write.
USB_TYPE	enumerate (USBDeviceConnected dev, IUSBEnumerator pEnumerator)
	Enumerate a device.
USB_TYPE	resetDevice (USBDeviceConnected *dev)
	reset a specific device
USBDeviceConnected *	getDevice (uint8_t index)
	Get a device.
template<typename T >
void	registerDriver (USBDeviceConnected dev, uint8_t intf, T tptr, void(T::*mptr)(void))
	register a driver into the host associated with a callback function called when the device is disconnected
void	registerDriver (USBDeviceConnected dev, uint8_t intf, void(fn)(void))
	register a driver into the host associated with a callback function called when the device is disconnected
Static Public Member Functions
static USBHost *	getHostInst ()
	Static method to create or retrieve the single USBHost instance.
Protected Member Functions
virtual void	transferCompleted (volatile uint32_t addr)
	Virtual method called when a transfer has been completed.
virtual void	deviceConnected (int hub, int port, bool lowSpeed, USBHostHub *hub_parent=NULL)
	Virtual method called when a device has been connected.
virtual void	deviceDisconnected (int hub, int port, USBHostHub *hub_parent, volatile uint32_t addr)
	Virtuel method called when a device has been disconnected.
void	init ()
	Initialize host controller.
void	resetRootHub ()
	reset the root hub
uint32_t	controlHeadED ()
	return the value contained in the control HEAD ED register
uint32_t	bulkHeadED ()
	return the value contained in the bulk HEAD ED register
uint32_t	interruptHeadED ()
	return the value of the head interrupt ED contained in the HCCA
void	updateControlHeadED (uint32_t addr)
	Update the head ED for control transfers.
void	updateBulkHeadED (uint32_t addr)
	Update the head ED for bulk transfers.
void	updateInterruptHeadED (uint32_t addr)
	Update the head ED for interrupt transfers.
void	enableList (ENDPOINT_TYPE type)
	Enable List for the specified endpoint type.
bool	disableList (ENDPOINT_TYPE type)
	Disable List for the specified endpoint type.
volatile uint8_t *	getED ()
	Find a memory section for a new ED.
volatile uint8_t *	getTD ()
	Find a memory section for a new TD.
void	freeED (volatile uint8_t *ed)
	Release a previous memory section reserved for an ED.
void	freeTD (volatile uint8_t *td)
	Release a previous memory section reserved for an TD.
Friends
class	USBHostHub

Detailed Description

USBHost class This class is a singleton.

All drivers have a reference on the static USBHost instance

Definition at line 34 of file USBHost.h.

Member Function Documentation

uint32_t bulkHeadED ( ) [protected, inherited]

return the value contained in the bulk HEAD ED register

Returns:: address of the bulk head ED

USB_TYPE bulkRead	(	USBDeviceConnected *	dev,
		USBEndpoint *	ep,
		uint8_t *	buf,
		uint32_t	len,
		bool	blocking = `true`
	)

Bulk read.

Parameters:

dev	the bulk transfer will be done for this device
ep	USBEndpoint which will be used to read a packet
buf	pointer on a buffer where will be store the data received
len	length of the transfer
blocking	if true, the read is blocking (wait for completion)

Returns:: status of the bulk read

Definition at line 1053 of file USBHost.cpp.

USB_TYPE bulkWrite	(	USBDeviceConnected *	dev,
		USBEndpoint *	ep,
		uint8_t *	buf,
		uint32_t	len,
		bool	blocking = `true`
	)

Bulk write.

Parameters:

dev	the bulk transfer will be done for this device
ep	USBEndpoint which will be used to write a packet
buf	pointer on a buffer which will be written
len	length of the transfer
blocking	if true, the write is blocking (wait for completion)

Returns:: status of the bulk write

Definition at line 1048 of file USBHost.cpp.

uint32_t controlHeadED ( ) [protected, inherited]

return the value contained in the control HEAD ED register

Returns:: address of the control Head ED

USB_TYPE controlRead	(	USBDeviceConnected *	dev,
		uint8_t	requestType,
		uint8_t	request,
		uint32_t	value,
		uint32_t	index,
		uint8_t *	buf,
		uint32_t	len
	)

Control read: setup stage, data stage and status stage.

Parameters:

dev	the control read will be done for this device
requestType	request type
request	request
value	value
index	index
buf	pointer on a buffer where will be store the data received
len	length of the transfer

Returns:: status of the control read

Definition at line 1147 of file USBHost.cpp.

USB_TYPE controlWrite	(	USBDeviceConnected *	dev,
		uint8_t	requestType,
		uint8_t	request,
		uint32_t	value,
		uint32_t	index,
		uint8_t *	buf,
		uint32_t	len
	)

Control write: setup stage, data stage and status stage.

Parameters:

dev	the control write will be done for this device
requestType	request type
request	request
value	value
index	index
buf	pointer on a buffer which will be written
len	length of the transfer

Returns:: status of the control write

Definition at line 1152 of file USBHost.cpp.

void deviceConnected	(	int	hub,
		int	port,
		bool	lowSpeed,
		USBHostHub *	hub_parent = `NULL`
	)		`[protected, virtual]`

Virtual method called when a device has been connected.

Parameters:

hub	hub number of the device
port	port number of the device
lowSpeed	1 if low speed, 0 otherwise
hub_parent	reference on the parent hub

Implements USBHALHost.

Definition at line 402 of file USBHost.cpp.

void deviceDisconnected	(	int	hub,
		int	port,
		USBHostHub *	hub_parent,
		volatile uint32_t	addr
	)		`[protected, virtual]`

Virtuel method called when a device has been disconnected.

Parameters:

hub	hub number of the device
port	port number of the device
addr	list of the TDs which have been completed to dequeue freed TDs

Implements USBHALHost.

Definition at line 425 of file USBHost.cpp.

bool disableList ( ENDPOINT_TYPE type ) [protected, inherited]

Disable List for the specified endpoint type.

Parameters:

type	disable the list of ENDPOINT_TYPE type

void enableList ( ENDPOINT_TYPE type ) [protected, inherited]

Enable List for the specified endpoint type.

Parameters:

type	enable the list of ENDPOINT_TYPE type

USB_TYPE enumerate	(	USBDeviceConnected *	dev,
		IUSBEnumerator *	pEnumerator
	)

Enumerate a device.

Parameters:

dev	device which will be enumerated

Returns:: status of the enumeration

Definition at line 895 of file USBHost.cpp.

void freeED ( volatile uint8_t * ed ) [protected, inherited]

Release a previous memory section reserved for an ED.

Parameters:

ed	address of the ED

void freeTD ( volatile uint8_t * td ) [protected, inherited]

Release a previous memory section reserved for an TD.

Parameters:

td	address of the TD

USBDeviceConnected * getDevice ( uint8_t index )

Get a device.

Parameters:

index index of the device which will be returned

Returns:: pointer on the "index" device

Definition at line 563 of file USBHost.cpp.

volatile uint8_t* getED ( ) [protected, inherited]

Find a memory section for a new ED.

Returns:: the address of the new ED

USBHost * getHostInst ( ) [static]

Static method to create or retrieve the single USBHost instance.

Definition at line 388 of file USBHost.cpp.

volatile uint8_t* getTD ( ) [protected, inherited]

Find a memory section for a new TD.

Returns:: the address of the new TD

void init ( ) [protected, inherited]

Initialize host controller.

Enable USB interrupts. This part is not in the constructor because, this function calls a virtual method if a device is already connected

uint32_t interruptHeadED ( ) [protected, inherited]

return the value of the head interrupt ED contained in the HCCA

Returns:: address of the head interrupt ED contained in the HCCA

USB_TYPE interruptRead	(	USBDeviceConnected *	dev,
		USBEndpoint *	ep,
		uint8_t *	buf,
		uint32_t	len,
		bool	blocking = `true`
	)

Interrupt read.

Parameters:

dev	the bulk transfer will be done for this device
ep	USBEndpoint which will be used to write a packet
buf	pointer on a buffer which will be written
len	length of the transfer
blocking	if true, the read is blocking (wait for completion)

Returns:: status of the interrupt read

Definition at line 1063 of file USBHost.cpp.

USB_TYPE interruptWrite	(	USBDeviceConnected *	dev,
		USBEndpoint *	ep,
		uint8_t *	buf,
		uint32_t	len,
		bool	blocking = `true`
	)

Interrupt write.

Parameters:

dev	the bulk transfer will be done for this device
ep	USBEndpoint which will be used to write a packet
buf	pointer on a buffer which will be written
len	length of the transfer
blocking	if true, the write is blocking (wait for completion)

Returns:: status of the interrupt write

Definition at line 1058 of file USBHost.cpp.

void registerDriver	(	USBDeviceConnected *	dev,
		uint8_t	intf,
		void(*)(void)	fn
	)

register a driver into the host associated with a callback function called when the device is disconnected

Parameters:

dev	device
intf	interface number
fn	callback called when the specified device has been disconnected

Definition at line 183 of file USBHost.h.

void registerDriver	(	USBDeviceConnected *	dev,
		uint8_t	intf,
		T *	tptr,
		void(T::*)(void)	mptr
	)

register a driver into the host associated with a callback function called when the device is disconnected

Parameters:

dev	device
intf	interface number
tptr	pointer to the object to call the member function on
mptr	pointer to the member function to be called

Definition at line 167 of file USBHost.h.

USB_TYPE resetDevice ( USBDeviceConnected * dev )

reset a specific device

Parameters:

dev	device which will be resetted

Definition at line 594 of file USBHost.cpp.

void resetRootHub ( ) [protected, inherited]

reset the root hub

void transferCompleted ( volatile uint32_t addr ) [protected, virtual]

Virtual method called when a transfer has been completed.

Parameters:

addr	list of the TDs which have been completed

Implements USBHALHost.

Definition at line 328 of file USBHost.cpp.

void updateBulkHeadED ( uint32_t addr ) [protected, inherited]

Update the head ED for bulk transfers.

void updateControlHeadED ( uint32_t addr ) [protected, inherited]

Update the head ED for control transfers.

void updateInterruptHeadED ( uint32_t addr ) [protected, inherited]

Update the head ED for interrupt transfers.

Type:	Library
Created:	06 Mar 2013
Imports:	6262
Forks:	29
Commits:	41
Dependents:	61
Dependencies:	2
Followers:	328
Issues:	6

USBHost Class Reference

Data Structures

Public Member Functions

Static Public Member Functions

Protected Member Functions

Friends

Detailed Description

Member Function Documentation

Repository toolbox

Repository details

Important Information for this Arm website

USBHost Class Reference

Data Structures

Public Member Functions

Static Public Member Functions

Protected Member Functions

Friends

Detailed Description

Member Function Documentation

Repository toolbox

Repository details

Important Information for this Arm website

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