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GLAST / LAT > DAQ and FSW > FSW > Doxygen Index> LSE / V2-0-1 > lsew / sun-gcc

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CDF_dgn_def.h File Reference

Compress structures for the DGN contribution. More...

#include "LDT/RLE.h"
#include "LDT/BFP.h"

Classes
struct	_CDF_dgn_maps_s
union	_CDF_dgn_maps
struct	_CDF_dgn_gen_tkr
struct	_CDF_dgn_gen_tkr_cfg
struct	_CDF_dgn_std_cal_cfg
struct	_CDF_dgn_std_cal_twr
struct	_CDF_dgn_std_cal
struct	_CDF_dgn_std_tkr_cfg
struct	_CDF_dgn_std_tkr
struct	_CDF_dgn_std_cfg
struct	_CDF_dgn_std
	All the stuff about statistics used for doing DGN compresssion. More...
struct	_CDF_dgn_ped_cal_cfg
	Structure to hold any configuration information needed by the diagnostic compress for the CAL pedestals. This is currently just a placeholder. More...
struct	_CDF_dgn_ped_cal_twr
struct	_CDF_dgn_ped_cal
struct	_CDF_dgn_ped_tkr_cfg
struct	_CDF_dgn_ped_tkr
struct	_CDF_dgn_ped_cfg
struct	_CDF_dgn_ped
	DGN compresssion pedestal compression context. More...
struct	_CDF_dgnCfg
struct	_CDF_dgn
	Binds the diangostic contexts together. More...
Defines
#define	PACK_CALDGNMAP(_dgnsp0, _dgnsp1, _dgnsp2,_dgnsn0, _dgnsn1, _dgnsn2,_trgs,_dgns)
	Packs the 192 accept bits, 96 from each log end, and the 32 trigger bits, 16 CAL LO and 16 CAL HI, in the 12 CAL diagnostic words into 3 densely packed 32-bit words for the positive log end 3 densely packed 32-bit words for the negative log end 1 densely packed 32-bit word, 16-bits for CAL HI and 16-bits for CAL LO.
Typedefs
typedef struct _EBF_dir	EBF_dir
typedef struct _EBF_dirCtbDsc	EBF_dirCtbDsc
typedef struct _EBF_dirAuxDsc	EBF_dirAuxDsc
typedef union _CDF_dgn_maps	CDF_dgn_maps
typedef struct _CDF_dgn_gen_tkr	CDF_dgn_gen_tkr
typedef struct _CDF_dgn_gen_tkr_cfg	CDF_dgn_gen_tkr_cfg
typedef struct _CDF_dgn_std_cal_cfg	CDF_dgn_std_cal_cfg
typedef struct _CDF_dgn_std_cal_twr	CDF_dgn_std_cal_twr
typedef struct _CDF_dgn_std_cal	CDF_dgn_std_cal
typedef struct _CDF_dgn_std_tkr_cfg	CDF_dgn_std_tkr_cfg
typedef struct _CDF_dgn_std_tkr	CDF_dgn_std_tkr
typedef struct _CDF_dgn_std_cfg	CDF_dgn_std_cfg
typedef struct _CDF_dgn_std	CDF_dgn_std
typedef struct _CDF_dgn_ped_cal_cfg	CDF_dgn_ped_cal_cfg
	Typedef for struct _CDF_dgn_ped_cal_cfg.
typedef struct _CDF_dgn_ped_cal_twr	CDF_dgn_ped_cal_twr
typedef struct _CDF_dgn_ped_cal	CDF_dgn_ped_cal
typedef struct _CDF_dgn_ped_tkr_cfg	CDF_dgn_ped_tkr_cfg
typedef struct _CDF_dgn_ped_tkr	CDF_dgn_ped_tkr
typedef struct _CDF_dgn_ped_cfg	CDF_dgn_ped_cfg
typedef struct _CDF_dgn_ped	CDF_dgn_ped
	Typedef for struct _CDF_dgn_ped.
typedef struct _CDF_dgnCfg	CDF_dgnCfg
typedef struct _CDF_dgn	CDF_dgn
	Typedef for struct _CDF_dgn.
Functions
unsigned long long int	CDF_dgn_cal_tkr_nonempty_find (const unsigned int **dgns_p, unsigned int map, const EBF_dirCtbDsc *dscs, const EBF_dirAuxDsc *auxs)
	Compose a list of non-empty CAL and TKR diagnostic blocks.
unsigned int	CDF_dgn_gen_header_compress (unsigned int *buf, unsigned int pos, unsigned int xCalHiLo, unsigned int xCtids)
	Encodes the tower summary indicating which CAL LO/CAL HI diagnostic towers do not match the GEM CAL/TKR diagnostic towers with/without data do not match the CAL/TKR contributions.
unsigned int	CDF_dgn_gen_trg_compress (unsigned int *buf, unsigned int pos, const unsigned int *trgs, int cnt)
	Encodes the CAL log trigger diagnostic trigger data for all towers. This is a generic routine that can be used for both standard physics and pedestal evetns.
unsigned int	CDF_dgn_gen_tkr_compress (CDF_dgn_gen_tkr *cdf, unsigned int *buf, unsigned int pos, unsigned int const **dgns, const EBF_dir *dir, unsigned int map, unsigned int err_ids)
unsigned int	CDF_dgn_ped_cal_prepare (CDF_dgn_ped_cal *cdf, unsigned int map, unsigned int amap, unsigned int emap, const unsigned **dgns, const EBF_dirCtbDsc *dscs)
	Prepares the cal diagnostic data for compression.
unsigned int	CDF_dgn_std_cal_prepare (CDF_dgn_std_cal *cdf, unsigned int map, unsigned int amap, unsigned int emap, const unsigned **dgns, const EBF_dirCtbDsc *dscs)
	Prepares the cal diagnostic data for compression.
static __inline unsigned int	rearrangeCalTriggers (unsigned int trgs)
static __inline unsigned int	dgn_cal_trg_extract (const unsigned int *dgns)
static __inline unsigned int	rle_encode32 (unsigned int *buf, unsigned int pos, unsigned int word)
static __inline unsigned int	rle_encode16 (unsigned int *buf, unsigned int pos, unsigned short int word)
static __inline int	CDF_dgn_gen_tkr_construct (CDF_dgn_gen_tkr *cdf, int level, const CDF_dgn_gen_tkr_cfg *cfg, const LSEW_dgmFw *dgmFw, void **mem)
	Constructs the TKR generic diagnostic compression context.

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Detailed Description

Compress structures for the DGN contribution.

Author:

JJRussell - russell@slac.stanford.edu

    CVS $Id: CDF_dgn_def.h,v 1.2 2009/04/30 18:24:39 russell Exp $

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Define Documentation

#define PACK_CALDGNMAP	(	_dgnsp0,
		_dgnsp1,
		_dgnsp2,
		_dgnsn0,
		_dgnsn1,
		_dgnsn2,
		_trgs,
		_dgns		)

Packs the 192 accept bits, 96 from each log end, and the 32 trigger bits, 16 CAL LO and 16 CAL HI, in the 12 CAL diagnostic words into

• 3 densely packed 32-bit words for the positive log end
• 3 densely packed 32-bit words for the negative log end
• 1 densely packed 32-bit word, 16-bits for CAL HI and 16-bits for CAL LO.

Parameters:

	_dgnsp0	The first 32 accept bits from the positive log end
	_dgnsp1	The second 32 accept bits from the positive log end
	_dgnsp2	The third 32 accept bits from the positive log end
	_dgnsn0	The first 32 accept bits from the negative log end
	_dgnsn1	The second 32 accept bits from the negative log end
	_dgnsn2	The third 32 accept bits from the negative log end
	_trgs	The CAL HI trigger bits in the upper 16 bits and the CAL LO trigger bits in the lower 16 bits.
	_dgns	The 12 CAL diagnostic 32-bit words

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Function Documentation

unsigned int CDF_dgn_gen_header_compress	(	unsigned int *	buf,
		unsigned int	pos,
		unsigned int	xCalHiLo,
		unsigned int	xCtids
	)

Encodes the tower summary indicating which

• CAL LO/CAL HI diagnostic towers do not match the GEM
• CAL/TKR diagnostic towers with/without data do not match the CAL/TKR contributions.

Returns:

The new bit index

Parameters:

	buf	The output buffer
	pos	The bit index
	xCalHiLo	Bit mask of the non-matching CAL HI and CAL LO towers
	xCtids	Bit mask of the non-matching CAL and TKR towers

Logically one expects that these two values are 0, but in given that the signal paths and timing strobes are different for the diagnostic data, the values in the diagnostics and there logical equivalents in the data stream occassionally do not match.

The number of the mismatches depends on the quantity

• CAL towers with and without data very rarely (have not seen a case) does not match the towers with diagnostic data that is empty and nonempty. That is because it is precisely these values that determine which CAL logs get committed to the data stream. In fact, if the data stream recorded which end was above threshold, this data would not only match at the summary level, but at the log end level. As it is, the diagnostic data does match at the log level, just not the log-end level. This is because a log is accepted if eiher end is above threshold.

• TKR towers with and without data mismatch quite frequently. This is because the diagnostic data indicating which layers have or do not data are taken with a one time and the data in the TKR stream is taken at another time. This is because the former signals are used in the trigger, while the latter are captured only after the trigger. (2/3)

• The CAL HI/CAL LO triggers rarely mismatch. These mismatches must be due to the CAL and GEM latching these signals slightly differently. This mismatch perhaps indicates a mistiming of latching strobes. (< 1/100)

The encoding attempts to take advantage of these statistics. It treats the incoming data as three values

• xCalHiLo (32-bits)
• CAL ids (16-bits)
• TKR ids (16-bits)

0 - all zero 10 - CAL ids zero, xCaLHiLo zero, TKR ids non-zero 110 - CAL ids zero, xCalHiLo nonzero, TKR_ids zero 1110 - CAL ids zero, xCalHiLo nonzero, TKR_ids nonzero 1111xx - CAL ids nonzero, xx gives non zero status

int CDF_dgn_gen_tkr_construct	(	CDF_dgn_gen_tkr *	cdf,
		int	level,
		const CDF_dgn_gen_tkr_cfg *	cfg,
		const LSEW_dgmFw *	dgmFw,
		void **	mem
	)			[static]

Constructs the TKR generic diagnostic compression context.

Returns:

Status

Parameters:

	cdf	The TKR generic diagnostic compression context to construct
	level	The compression level
	cfg	The TKR generic diagnostic compression configuration information. Currently this is unused, but is provided for future usage if necessary.
	dgmFw	The datagram framework. This would be used if the compression of the TKR generic diagnostic data needed to store any context information in the datagram header.
	mem	A pointer to the memory to allocate any variable length structures the CDF_dgn_gen_tkr context may need. Currently there are none. If this pointer is the same as cdf, the memory pointer is advanced by the size of the CDF_dgn_gen_tkr structure before allocating any new memory. This routine updates the memory pointer to the next available address.

unsigned int CDF_dgn_gen_trg_compress	(	unsigned int *	buf,
		unsigned int	pos,
		const unsigned int *	trgs,
		int	cnt
	)

Encodes the CAL log trigger diagnostic trigger data for all towers. This is a generic routine that can be used for both standard physics and pedestal evetns.

Returns:

The updated bit index

Parameters:

	buf	The output bit buffer
	pos	The output bit index
	trgs	The array of prepared trigger data for the list of towers with non-empty trigger data.
	cnt	The count of dgn

unsigned int CDF_dgn_ped_cal_prepare	(	CDF_dgn_ped_cal *	cdf,
		unsigned int	map,
		unsigned int	amap,
		unsigned int	emap,
		const unsigned **	dgns,
		const EBF_dirCtbDsc *	dscs
	)

Prepares the cal diagnostic data for compression.

Returns:

A 32 bit value composed of two1 16-maps, one for which towers had the CAL HI trigger set (upper 16 bits) and which towers had the CAL LO trigger set (lower 16 bits).

Parameters:

	cdf	The context for CAL standard diagnostics
	map	A left justified map indicating which towers have a CAL contribution.
	amap	A left justified map indicating which towers have only an accept contribution.
	emap	A left justified map of towers with errors
	dgns	An array of pointers, indexed by tower number, giving the address of that tower's diagnostic block.
	dscs	The array of pointers to the tower contribution descriptors.

This routine provides information used to compress both the CAL diagnostic data itself, but also information used in constructing the summary header. This summary information indicates which towers have non-zero CAL HI and LO trigger bits set.

unsigned int CDF_dgn_std_cal_prepare	(	CDF_dgn_std_cal *	cdf,
		unsigned int	map,
		unsigned int	amap,
		unsigned int	emap,
		const unsigned **	dgns,
		const EBF_dirCtbDsc *	dscs
	)

Prepares the cal diagnostic data for compression.

Returns:

A 32 bit value composed of two1 16-maps, one for which towers had the CAL HI trigger set (upper 16 bits) and which towers had the CAL LO trigger set (lower 16 bits).

Parameters:

	cdf	The context for CAL standard diagnostics
	map	A left justified map indicating which towers have a CAL diagnostic contribution, either TRG or ACCEPT
	amap	A left justified map indicating which towers have a non-empty accept contribution.
	emap	A left justified map of towers with errors
	dgns	An array of pointers, indexed by tower number, giving the address of that tower's diagnostic block.
	dscs	The array of pointers to the tower contribution descriptors.

This routine provides information used to compress both the CAL diagnostic data itself, but also information used in constructing the summary header. This summary information indicates which towers have non-zero CAL HI and LO trigger bits set.

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