Presents a USB Mass Storage Device host interface. More...

Detailed Description

Presents a USB Mass Storage Device host interface.

Author: Gabriel Ball

Date: September 16, 2021

#include <usb_host.h>

Classes
struct	Config
	Configuration structure for interfacing with USB host Driver. More...

Public Types
enum class	Result { OK , BUSY , FAIL , NOT_SUPPORTED , UNRECOVERED_ERROR , ERROR_SPEED_UNKNOWN }
	return codes from the USB Processing can be used to check the state of USB while running outside of what may be happening with the limited user callbacks. More...

typedef void(*	ConnectCallback) (void *data)
	User defineable callback for USB Connection.

typedef void(*	DisconnectCallback) (void *data)
	User defineable callback for USB Disconnection.

typedef void(*	ClassActiveCallback) (void *userdata)
	User defineable callback upon completion of class initialization For example, when a USB drive is connected and the usb device class initialization has finished, this callback will fire.

typedef void(*	ErrorCallback) (void *data)
	User defineable callback for USB Unrecoverable Error.

Public Member Functions
Result	RegisterClass (USBH_ClassTypeDef *pClass)

Result	Init (USBHostHandle::Config &config)

Result	Deinit ()

bool	IsActiveClass (USBH_ClassTypeDef *usbClass)

Result	Process ()

Result	ReEnumerate ()

bool	GetReady ()

bool	GetPresent ()

const char *	GetProductName ()

	USBHostHandle ()

	USBHostHandle (const USBHostHandle &other)=default

USBHostHandle &	operator= (const USBHostHandle &other)=default

Member Typedef Documentation

◆ ClassActiveCallback

typedef void(* daisy::USBHostHandle::ClassActiveCallback) (void *userdata)

User defineable callback upon completion of class initialization For example, when a USB drive is connected and the usb device class initialization has finished, this callback will fire.

Parameters

userdata a pointer to some arbitrary data for use by the user. this is supplied in the Config struct. Can be used to avoid globals.

Todo:: At some point this may be replaced for individual callbacks for each supported USB Host class.

◆ ConnectCallback

typedef void(* daisy::USBHostHandle::ConnectCallback) (void *data)

User defineable callback for USB Connection.

◆ DisconnectCallback

typedef void(* daisy::USBHostHandle::DisconnectCallback) (void *data)

User defineable callback for USB Disconnection.

◆ ErrorCallback

typedef void(* daisy::USBHostHandle::ErrorCallback) (void *data)

User defineable callback for USB Unrecoverable Error.

Todo:: add some sort of feedback about the type of error, etc. if possible

Member Enumeration Documentation

◆ Result

enum class daisy::USBHostHandle::Result

strong

return codes from the USB Processing can be used to check the state of USB while running outside of what may be happening with the limited user callbacks.

At this time, these correlate directly to the ST Middleware USBH_StatusTypeDef codes

Enumerator
OK
BUSY
FAIL
NOT_SUPPORTED
UNRECOVERED_ERROR
ERROR_SPEED_UNKNOWN

Constructor & Destructor Documentation

◆ USBHostHandle() [1/2]

daisy::USBHostHandle::USBHostHandle ( )

inline

◆ USBHostHandle() [2/2]

daisy::USBHostHandle::USBHostHandle ( const USBHostHandle & other )

default

Member Function Documentation

◆ Deinit()

Result daisy::USBHostHandle::Deinit ( )

Deinitializes USB host-related peripherals

◆ GetPresent()

bool daisy::USBHostHandle::GetPresent ( )

Run after the first Process call to detect if a device is present

◆ GetProductName()

const char * daisy::USBHostHandle::GetProductName ( )

Returns name of the connected devices if there is one

◆ GetReady()

bool daisy::USBHostHandle::GetReady ( )

Returns true if a Mass Storage Device is connected and ready for communicaton

◆ Init()

Result daisy::USBHostHandle::Init ( USBHostHandle::Config & config )

Initializes the USB drivers and starts timeout.

Parameters

config Configuration struct for initialization

◆ IsActiveClass()

bool daisy::USBHostHandle::IsActiveClass ( USBH_ClassTypeDef * usbClass )

Returns true if the specified class is active

◆ operator=()

USBHostHandle & daisy::USBHostHandle::operator= ( const USBHostHandle & other )

default

◆ Process()

Result daisy::USBHostHandle::Process ( )

Manages usb host functionality

◆ ReEnumerate()

Result daisy::USBHostHandle::ReEnumerate ( )

Forces USB host to re-enumerate device

◆ RegisterClass()

Result daisy::USBHostHandle::RegisterClass ( USBH_ClassTypeDef * pClass )

Register a USB class

The documentation for this class was generated from the following file:

src/hid/usb_host.h