ChimeraTK-DeviceAccess  03.18.00
ChimeraTK::UioBackend Class Reference

#include <UioBackend.h>

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Public Member Functions

 UioBackend (std::string deviceName, std::string mapFileName)
 
 ~UioBackend () override
 
void open () override
 Open the device. More...
 
void closeImpl () override
 All backends derrived from NumericAddressedBackend must implement closeImpl() instead of close. More...
 
size_t minimumTransferAlignment ([[maybe_unused]] uint64_t bar) const override
 Determines the supported minimum alignment for any read/write requests. More...
 
bool barIndexValid (uint64_t bar) override
 Function to be implemented by the backends. More...
 
void read (uint64_t bar, uint64_t address, int32_t *data, size_t sizeInBytes) override
 Read function to be implemented by backends. More...
 
void write (uint64_t bar, uint64_t address, int32_t const *data, size_t sizeInBytes) override
 Write function to be implemented by backends. More...
 
std::future< void > activateSubscription (uint32_t interruptNumber, boost::shared_ptr< async::DomainImpl< std::nullptr_t >> asyncDomain) override
 Activate/create the subscription for a given interrupt (for instance by starting the according interrupt handling thread). More...
 
std::string readDeviceInfo () override
 Return a device information string containing hardware details like the firmware version number or the slot number used by the board. More...
 
- Public Member Functions inherited from ChimeraTK::NumericAddressedBackend
 NumericAddressedBackend (const std::string &mapFileName="", std::unique_ptr< NumericAddressedRegisterCatalogue > registerMapPointer=std::make_unique< NumericAddressedRegisterCatalogue >())
 
 ~NumericAddressedBackend () override=default
 
virtual void read ([[maybe_unused]] uint8_t bar, [[maybe_unused]] uint32_t address, [[maybe_unused]] int32_t *data, [[maybe_unused]] size_t sizeInBytes)
 Deprecated read function using 32bit address for backwards compatibility. More...
 
virtual void write ([[maybe_unused]] uint8_t bar, [[maybe_unused]] uint32_t address, [[maybe_unused]] int32_t const *data, [[maybe_unused]] size_t sizeInBytes)
 Deprecated write function using 32bit address for backwards compatibility. More...
 
virtual bool canMergeRequests () const
 Determines whether the backend supports merging of requests (read or write) More...
 
RegisterCatalogue getRegisterCatalogue () const override
 Return the register catalogue with detailed information on all registers. More...
 
MetadataCatalogue getMetadataCatalogue () const override
 Return the device metadata catalogue. More...
 
NumericAddressedRegisterInfo getRegisterInfo (const RegisterPath &registerPathName)
 getRegisterInfo returns a NumericAddressedRegisterInfo object for the given register. More...
 
void activateAsyncRead () noexcept override
 Activate asyncronous read for all transfer elements where AccessMode::wait_for_new_data is set. More...
 
void close () final
 Deactivates all asynchronous accessors and calls closeImpl(). More...
 
void setExceptionImpl () noexcept override
 Turn off the internal variable which remembers that async is active. More...
 
template<typename BackendSpecificUserType >
std::pair< BackendSpecificUserType, VersionNumbergetAsyncDomainInitialValue (size_t asyncDomainId)
 Get the initial value for a certain async::Domain. More...
 
template<typename BackendSpecificUserType >
std::pair< BackendSpecificUserType, VersionNumbergetAsyncDomainInitialValue ([[maybe_unused]] size_t asyncDomainId)
 
- Public Member Functions inherited from ChimeraTK::DeviceBackendImpl
bool isOpen () override
 Return whether a device has been opened or not. More...
 
bool isConnected () final
 Deprecated since 2022-03-03. More...
 
void checkActiveException () final
 Function to be called by backends when needing to check for an active exception. More...
 
void setException (const std::string &message) noexcept final
 Set the backend into an exception state. More...
 
bool isFunctional () const noexcept final
 Return whether a device is working as intended, usually this means it is opened and does not have any errors. More...
 
std::string getActiveExceptionMessage () noexcept
 
- Public Member Functions inherited from ChimeraTK::DeviceBackend
virtual ~DeviceBackend ()=default
 Every virtual class needs a virtual desctructor. More...
 
template<typename UserType >
boost::shared_ptr< NDRegisterAccessor< UserType > > getRegisterAccessor (const RegisterPath &registerPathName, size_t numberOfWords, size_t wordOffsetInRegister, AccessModeFlags flags)
 Get a NDRegisterAccessor object from the register name. More...
 
 DEFINE_VIRTUAL_FUNCTION_TEMPLATE_VTABLE (getRegisterAccessor_impl, boost::shared_ptr< NDRegisterAccessor< T >>(const RegisterPath &, size_t, size_t, AccessModeFlags))
 

Static Public Member Functions

static boost::shared_ptr< DeviceBackendcreateInstance (std::string address, std::map< std::string, std::string > parameters)
 

Public Attributes

boost::shared_ptr< async::DomainImpl< std::nullptr_t > > _asyncDomain
 

Additional Inherited Members

- Protected Member Functions inherited from ChimeraTK::DeviceBackendImpl
void setOpenedAndClearException () noexcept
 Backends should call this function at the end of a (successful) open() call. More...
 
- Protected Attributes inherited from ChimeraTK::NumericAddressedBackend
std::unique_ptr< NumericAddressedRegisterCatalogue_registerMapPointer
 
NumericAddressedRegisterCatalogue_registerMap
 
MetadataCatalogue _metadataCatalogue
 metadata catalogue More...
 
std::mutex _unalignedAccess
 mutex for protecting unaligned access More...
 
friend NumericAddressedLowLevelTransferElement
 
friend TriggeredPollDistributor
 
- Protected Attributes inherited from ChimeraTK::DeviceBackendImpl
std::atomic< bool > _opened {false}
 flag if backend is opened More...
 
async::DomainsContainer _asyncDomainsContainer
 Container for async::Domains to support wait_for_new_data. More...
 

Detailed Description

Definition at line 12 of file UioBackend.h.

Constructor & Destructor Documentation

◆ UioBackend()

ChimeraTK::UioBackend::UioBackend ( std::string  deviceName,
std::string  mapFileName 
)

Definition at line 8 of file UioBackend.cc.

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◆ ~UioBackend()

ChimeraTK::UioBackend::~UioBackend ( )
override

Definition at line 12 of file UioBackend.cc.

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Member Function Documentation

◆ activateSubscription()

std::future< void > ChimeraTK::UioBackend::activateSubscription ( uint32_t  interruptNumber,
boost::shared_ptr< async::DomainImpl< std::nullptr_t >>  asyncDomain 
)
overridevirtual

Activate/create the subscription for a given interrupt (for instance by starting the according interrupt handling thread).

A shared pointer to the async::Domain is handed as a parameter. The backend has to store it together with the subscription (usually as a weak pointer) and use it to distribute the interrupt.

A future is returned. It becomes ready when the subscription is actually active (e.g. from inside the an interrupt handling thread after the initialisation sequence with the hardware is done).

If the subscription already exists and is active, a ready future is returned.

The function has an empty default implementation which returns a ready future.

Reimplemented from ChimeraTK::NumericAddressedBackend.

Definition at line 67 of file UioBackend.cc.

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◆ barIndexValid()

bool ChimeraTK::UioBackend::barIndexValid ( uint64_t  bar)
overridevirtual

Function to be implemented by the backends.

Returns whether the given bar number is valid.

Reimplemented from ChimeraTK::NumericAddressedBackend.

Definition at line 49 of file UioBackend.cc.

◆ closeImpl()

void ChimeraTK::UioBackend::closeImpl ( )
overridevirtual

All backends derrived from NumericAddressedBackend must implement closeImpl() instead of close.

Like this it is assured that the deactivation of the asynchronous accessors is always executed.

Reimplemented from ChimeraTK::NumericAddressedBackend.

Definition at line 36 of file UioBackend.cc.

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◆ createInstance()

boost::shared_ptr< DeviceBackend > ChimeraTK::UioBackend::createInstance ( std::string  address,
std::map< std::string, std::string >  parameters 
)
static

Definition at line 16 of file UioBackend.cc.

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◆ minimumTransferAlignment()

size_t ChimeraTK::UioBackend::minimumTransferAlignment ( [[maybe_unused] ] uint64_t  bar) const
inlineoverridevirtual

Determines the supported minimum alignment for any read/write requests.

If the backend expects a particular alignment for read()/write() calls it should return a value bigger than 1. The address and sizeInBytes arguments of the read()/write() calls will be always an integer multiple of this number. Any unaligned transfers will be changed to meet these criteria (additional padding data will be thrown away).

The default implementation returns 1, which means no special alignment is required.

Returns
Minimum alignment in bytes

Reimplemented from ChimeraTK::NumericAddressedBackend.

Definition at line 32 of file UioBackend.h.

◆ open()

void ChimeraTK::UioBackend::open ( )
overridevirtual

Open the device.

Implements ChimeraTK::DeviceBackend.

Definition at line 24 of file UioBackend.cc.

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◆ read()

void ChimeraTK::UioBackend::read ( uint64_t  bar,
uint64_t  address,
int32_t *  data,
size_t  sizeInBytes 
)
overridevirtual

Read function to be implemented by backends.

TODO: Add documentation!

Reimplemented from ChimeraTK::NumericAddressedBackend.

Definition at line 53 of file UioBackend.cc.

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◆ readDeviceInfo()

std::string ChimeraTK::UioBackend::readDeviceInfo ( )
overridevirtual

Return a device information string containing hardware details like the firmware version number or the slot number used by the board.

The format and contained information of this string is completely backend implementation dependent, so the string may only be printed to the user as an informational output. Do not try to parse this string or extract information from it programmatically.

Implements ChimeraTK::DeviceBackend.

Definition at line 88 of file UioBackend.cc.

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◆ write()

void ChimeraTK::UioBackend::write ( uint64_t  bar,
uint64_t  address,
int32_t const *  data,
size_t  sizeInBytes 
)
overridevirtual

Write function to be implemented by backends.

TODO: Add documentation!

Reimplemented from ChimeraTK::NumericAddressedBackend.

Definition at line 60 of file UioBackend.cc.

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Member Data Documentation

◆ _asyncDomain

boost::shared_ptr<async::DomainImpl<std::nullptr_t> > ChimeraTK::UioBackend::_asyncDomain

Definition at line 43 of file UioBackend.h.


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