ChannelMapper Class Reference

Provides mapping between electronic channels and pixels. More...

#include <ChannelMapper.h>

Collaboration diagram for ChannelMapper:

Public Types
enum	{   c_numBoardstacks = 4,   c_numCarrierBoards = 4,   c_numAsics = 4,   c_numChannels = 8,   c_numRows = 2,   c_numColumns = 16,   c_numPixelRows = c_numRows * c_numCarrierBoards,   c_numPixelColumns = c_numColumns * c_numBoardstacks,   c_numPixels = c_numPixelRows * c_numPixelColumns,   c_invalidChannel = c_numPixels,   c_invalidPixelID = 0 }
	Enum for the number of different quantities etc. More...
enum	EType {   c_unknown = 0,   c_default = 1,   c_IRS3B = 2,   c_IRSX = 3 }
	Enum for electornic types.

Public Member Functions
	ChannelMapper ()
	constructor
	~ChannelMapper ()
	destructor
void	initialize (const GearDir &channelMapping)
	Initialize from Gearbox (XML) More...
void	initialize ()
	Initialize from database.
bool	isValid () const
	Checks if mapping is available. More...
void	import (const IntervalOfValidity &iov) const
	import mappings to database More...
EType	getType () const
	Return electornic type (see enum) More...
std::string	getName () const
	Return electornic name. More...
bool	isPixelIDValid (int pixel) const
	Checks validity of pixel ID. More...
bool	isChannelValid (unsigned channel) const
	Checks validity of hardware channel number. More...
unsigned	getChannel (int pixel) const
	Converts pixel to hardware channel number (0-based) More...
unsigned	getChannel (unsigned boardstack, unsigned carrier, unsigned asic, unsigned chan) const
	Returns hardware channel number (0-based) More...
void	splitChannelNumber (unsigned channel, unsigned &boardstack, unsigned &carrier, unsigned &asic, unsigned &chan) const
	Splits hardware channel number into boardstack, carrier, asic and asic channel. More...
int	getPixelID (unsigned channel) const
	Converts hardware channel number to pixel ID (1-based) More...
int	getPmtID (int pixel) const
	Returns PMT ID (1-based) More...
void	print () const
	Print mappings to terminal screen.
void	test () const
	test that the conversion and inverse of it gives identity, if not B2ERROR

Private Member Functions
	ChannelMapper (const ChannelMapper &)
	Copy constructor.
ChannelMapper &	operator= (const ChannelMapper &)
	Assignment operator.
void	clear ()
	Clear.
void	update ()
	re-do conversion arrays when DBArray has changed

Private Attributes
EType	m_type = c_unknown
	electornic type
std::string	m_typeName
	electronic type name
std::vector< TOPChannelMap >	m_mapping
	mappings from gearbox
DBArray< TOPChannelMap > *	m_mappingDB = 0
	mappings from database
bool	m_valid = false
	true if mapping available
bool	m_fromDB = false
	true, if from database
const TOPChannelMap *	m_channels [c_numRows][c_numColumns] = {{0}}
	conversion array
const TOPChannelMap *	m_pixels [c_numAsics][c_numChannels] = {{0}}
	conversion array

Detailed Description

Provides mapping between electronic channels and pixels.

Definition at line 37 of file ChannelMapper.h.

Member Enumeration Documentation

anonymous enum

anonymous enum

Enum for the number of different quantities etc.

Enumerator
c_numBoardstacks	number of boardstacks per TOP module
c_numCarrierBoards	number of carrier boards per boardstack
c_numAsics	number of ASIC's per carrier board
c_numChannels	number of channels per ASIC
c_numRows	number of pixel rows per carrier board
c_numColumns	number of pixel columns per carrier board
c_numPixelRows	per module
c_numPixelColumns	per module
c_numPixels	per module
c_invalidChannel	value of invalid channel number
c_invalidPixelID	value of invalid pixel ID

Definition at line 43 of file ChannelMapper.h.

                 {c_unknown = 0,
                  c_default = 1,
                  c_IRS3B   = 2,
                  c_IRSX    = 3

Member Function Documentation

getChannel() [1/2]

unsigned getChannel

(

int

pixel

)

const

Converts pixel to hardware channel number (0-based)

Parameters

pixel

pixel ID (1-based)

Returns

channel number (or c_invalidChannel for invalid pixel)

Definition at line 209 of file ChannelMapper.cc.

    {
      if (!isPixelIDValid(pixel)) return c_invalidChannel;
 
      unsigned pix = pixel - 1;
      unsigned pixRow = pix / c_numPixelColumns;
      unsigned pixCol = pix % c_numPixelColumns;
 
      unsigned carrier = pixRow / c_numRows;
      unsigned row = pixRow % c_numRows;
      unsigned boardstack = pixCol / c_numColumns;
      unsigned col =  pixCol % c_numColumns;
 
      const auto& map = m_channels[row][col];
      if (!map) {
        B2WARNING("TOP::ChannelMapper: no channel mapped to pixel. Return invalid channel."
                  << LogVar("pixelID", pixel));
        return c_invalidChannel;
      }
      unsigned asic = map->getASICNumber();
      unsigned chan = map->getASICChannel();
 
      return getChannel(boardstack, carrier, asic, chan);
    }

getChannel() [2/2]

unsigned getChannel ( unsigned  boardstack, unsigned  carrier, unsigned  asic, unsigned  chan  ) const

inline

Returns hardware channel number (0-based)

Parameters

boardstack	boardstack number (0-based)
carrier	carrier board number (0-based)
asic	ASIC number (0-based)
chan	ASIC channel number (0-based)

Returns

channel number (or c_invalidChannel for invalid pixel)

Definition at line 146 of file ChannelMapper.h.

getName()

std::string getName ( ) const

inline

Return electornic name.

Returns

name

Definition at line 108 of file ChannelMapper.h.

getPixelID()

int getPixelID

(

unsigned

channel

)

const

Converts hardware channel number to pixel ID (1-based)

Parameters

channel

hardware channel number (0-based)

Returns

pixel ID (or c_invalidPixelID for invalid channel number)

Definition at line 250 of file ChannelMapper.cc.

getPmtID()

int getPmtID

(

int

pixel

)

const

Returns PMT ID (1-based)

Parameters

pixel

pixelID (1-based)

Returns

PMT ID (or 0 for invalid pixel)

Definition at line 276 of file ChannelMapper.cc.

getType()

EType getType ( ) const

inline

Return electornic type (see enum)

Returns

type

Definition at line 102 of file ChannelMapper.h.

import()

void import

(

const IntervalOfValidity &

iov

)

const

import mappings to database

Parameters

iov	Interval of validity.

Definition at line 199 of file ChannelMapper.cc.

initialize()

void initialize

(

const GearDir &

channelMapping

)

Initialize from Gearbox (XML)

Parameters

channelMapping

XML data directory

Definition at line 46 of file ChannelMapper.cc.

isChannelValid()

bool isChannelValid ( unsigned  channel ) const

inline

Checks validity of hardware channel number.

Parameters

channel

hardware channel number (0-based)

Returns

true for valid ID

Definition at line 126 of file ChannelMapper.h.

isPixelIDValid()

bool isPixelIDValid ( int  pixel ) const

inline

Checks validity of pixel ID.

Parameters

pixel

pixel ID (1-based)

Returns

true for valid ID

Definition at line 115 of file ChannelMapper.h.

isValid()

bool isValid ( ) const

inline

Checks if mapping is available.

Returns

true if available

Definition at line 90 of file ChannelMapper.h.

splitChannelNumber()

void splitChannelNumber	(	unsigned	channel,
		unsigned &	boardstack,
		unsigned &	carrier,
		unsigned &	asic,
		unsigned &	chan
	)		const

Splits hardware channel number into boardstack, carrier, asic and asic channel.

Parameters

channel	hardware channel number (0-based) [input]
boardstack	boardstack number (0-based) [output]
carrier	carrier board number (0-based) [output]
asic	ASIC number (0-based) [output]
chan	ASIC channel number (0-based) [output]

Definition at line 235 of file ChannelMapper.cc.

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

• top/geometry/include/ChannelMapper.h
• top/geometry/src/ChannelMapper.cc