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HFC.c File Reference

Heavy Ion Filter Code. More...

#include <XFC/HFC.h>
#include <XFC/HFC_cfg.h>
#include <XFC/HFC_status.h>
#include <EFC/EDM.h>
#include <EFC/EFC_edsFw.h>
#include <EFC/EFC.h>
#include <HFC_def.h>
#include <HFC_resultDef.h>
#include <TOV.h>
#include <EDS/EDS_fw.h>
#include <EDS/EBF_gem.h>
#include <EDS/EBF_gemLocate.h>
#include <EDS/EBF_dir.h>
#include <EDS/ECR_cal.h>
#include <EDS/EDR_cal.h>
#include <EDS/EDR_calUnpack.h>
#include <CDM/CDM_pubdefs.h>
#include <PBI/FFS.ih>
#include <stdlib.h>
#include <string.h>

Defines

#define _code   EDM_CODE
#define _info(...)
#define _debug(...)
#define _display_logcnt(_ncol, _logcnt)
#define _display_failure(_ncol, _msg)
#define _display_tolerance(_ncol, tolerance)
#define _display_energies(_ncol, _ex0, _ey0, _ex1, _threshold)
#define _display_separator(_ncol, _nbeg, _code)
#define _display_values(_ncol, _nbeg, _cnt, _e, _threshold, _n)
#define _display_layer_title(_ncol, _nbeg, _cnt, _name)
#define _display_tower_title(_ncol, _nbeg, _itwr)
#define _display_layer_hits(_ncol, _nx0, _ny0, _nx1, _status)
#define _display_title_bar(_ixb)
#define _regenerate_title_bar()

Functions

static __inline int isVetoed (unsigned int status, unsigned int vetoes)
 Checks whether any of the veto bits are up.
static __inline int hfcFilter (HFC *hfc, unsigned int pktBytes, EBF_pkt *pkt, EBF_siv siv, EDS_fwIxb *ixb, unsigned int vetoes, HFC_result *result)
 Determines the fate of 1 event.
static int compileCfgPrms (HfcCfgPrms *cfg, const HFC_DB_prms *prms)
 Compiles/commits the set of user defined parameters into the the configuration block.
int HFC_sizeof (int cnt)
 Sizes the heavy ion filtering control structure.
int HFC_cfgSizeof (void)
 Sizes the heavy ion filtering configuration as it is used in the actual filtering progam.
int HFC_resultSizeof (const HFC *hfc)
 Returns the size, in bytes, of one result vector.
int HFC_cfgCompile (HFC_cfg *cfg, const HFC_DB_prms *prms)
 Implements the transformation of the configuration parameters as specified by the user, cfg, into the internal form, ctlCfg.
int HFC_cfgSchemaCompile (HFC_cfg *cfg, const HFC_DB_schema *schema)
 Implements the transformation of the configuration parameters as specified by the user, cfg, into the internal form, ctlCfg.
HFC_cfgHFC_cfgSet (HFC *hfc, HFC_cfg *cfg)
 Makes the specified internal representation of the configuration parameters the current active one.
static int __inline dir_check (int status, EBF_dir *dir, int dir_status)
 Check the directory status.
static __inline int cal_check (const HfcCfgCal *cfg, const EDR_cal *cal, int status, int vetoes, HFC_result *result)
 Does the CAL based checking of the CNO filter.
int HFC_filter (HFC *hfc, unsigned int pktBytes, EBF_pkt *pkt, EBF_siv siv, EDS_fwIxb *ixb, unsigned int vetoes, HFC_result *result)
 Determines the fate of 1 event.
unsigned int HFC_fwNeeds (void)
 Returns a bit mask of the EDS_fw needs.
unsigned int HFC_fwObjects (void)
 Returns a bit mask of the EDS_fw objects used by the heavy ion filter.


Detailed Description

Heavy Ion Filter Code.

Author:
JJRussell - russell@slac.stanford.edu
   CVS $Id: HFC.c,v 1.8 2012/09/27 19:05:06 russell Exp $

Function Documentation

static __inline int cal_check ( const HfcCfgCal cfg,
const EDR_cal *  cal,
int  status,
int  vetoes,
HFC_result result 
) [static]

Does the CAL based checking of the CNO filter.

Returns:
The updated status value
Parameters:
cfg The CNO CAL configuration cuts
cal The unpacked CAL data
status The status of the CNO filter to this point
vetoes The bit mask of active vetoes
result The result vector to fill out

References _HFC_result::energies, _HfcCfgCal::ethreshold, HFC_STATUS_M_LYR_COUNTS, HFC_STATUS_M_LYR_ENERGY, HFC_STATUS_M_STAGE_CAL_ECHK, HFC_STATUS_M_STAGE_CAL_LCHK, HFC_STATUS_M_VETOED, ievt_store, isVetoed(), _HFC_result::logcnt, _HFC_result::nl, _HfcCfgCal::nmaxlogs, and _HfcCfgCal::tolerance.

Referenced by hfcFilter().

static int compileCfgPrms ( HfcCfgPrms cfg,
const HFC_DB_prms *  prms 
) [static]

Compiles/commits the set of user defined parameters into the the configuration block.

Returns:
0 is success, -1 if failure
Parameters:
cfg The destination parameter configuration block
prms The set of user configuration parameters

References _HfcCfgPrms::acd, _HfcCfgPrms::cal, _HfcCfgCal::ethreshold, _HfcCfgCal::nmaxlogs, _HfcCfgTkr::placeholder, _HfcCfgAcd::placeholder, _HfcCfgPrms::tkr, and _HfcCfgCal::tolerance.

Referenced by HFC_cfgCompile().

static int __inline dir_check ( int  status,
EBF_dir *  dir,
int  dir_status 
) [static]

Check the directory status.

Returns:
Updated status
Parameters:
status The status
dir The directory
dir_status The directory status

References HFC_STATUS_M_ERR_CTB, HFC_STATUS_M_ERR_DIR, HFC_STATUS_M_VETOED, and not_only_tkr_fifo_overflow().

Referenced by hfcFilter().

int HFC_cfgCompile ( HFC_cfg cfg,
const HFC_DB_prms *  prms 
)

Implements the transformation of the configuration parameters as specified by the user, cfg, into the internal form, ctlCfg.

Return values:
0 Successful
-1 Unrecognized or non-backwardly compatiable user configuration version number.
Parameters:
cfg Filled in with the internal form of the configuration parameters
prms The configuration parameters

References compileCfgPrms(), and _HFC_cfg::prms.

Referenced by HFC_cfgSchemaCompile().

int HFC_cfgSchemaCompile ( HFC_cfg cfg,
const HFC_DB_schema *  schema 
)

Implements the transformation of the configuration parameters as specified by the user, cfg, into the internal form, ctlCfg.

Return values:
0 Successful
-1 Unrecognized or non-backwardly compatiable user configuration version number.
Parameters:
cfg Filled in with the internal form of the configuration parameters
schema The configuration schema

References HFC_cfgCompile(), and _HFC_cfg::prms.

HFC_cfg* HFC_cfgSet ( HFC hfc,
HFC_cfg cfg 
)

Makes the specified internal representation of the configuration parameters the current active one.

Returns:
Pointer to the current control configuration parameters
Parameters:
hfc The heavy ion filter control structure
cfg The internal representation of the configuration constants

References _HFC::cfg.

int HFC_cfgSizeof ( void   ) 

Sizes the heavy ion filtering configuration as it is used in the actual filtering progam.

Returns:
Returns the size of the heavy ion filtering configuration control structure
There are two different breeds of the filtering configuration structure. There are two reasons for this. The more familar is the configuration structure that the user fills in. This structure is meant to be convenient for the user, but not for the program. Some of the information in the user structure is transformed into data that the program will find more accessible.
The second reason is that by having a user configuration and an internal configuration, the two can evolve separately. If more parameters are added to the filter, they will find a home in the internal structure. At some time they may be exposed to the user. The correct course of action is to define a new version of the user configuration block. Since the version number is carried along with the configuration constants, the routine transforming the user configuration to its internal representation can evolve and can be made to handle older versions of the user configuration parameters with some degree of grace, at least giving some hope to backward compatibility.
The correct usage model is
       ctlCfg = malloc (HFC_cfgSizeof ());
       status = HFC_cfgCompile (cfg, usrPrms);
       HFC_cfgSet (hfc, cfg);
Note:
Because the 'set routine just seeds a pointer to the user configuration, in the control structure. the user is free to swap it out with any other pre-prepared configuration.

int HFC_filter ( HFC hfc,
unsigned int  pktBytes,
EBF_pkt *  pkt,
EBF_siv  siv,
EDS_fwIxb *  ixb,
unsigned int  vetoes,
HFC_result result 
)

Determines the fate of 1 event.

Return values:
< 0, rejected
==0,undecided 
> 0, accepted
Parameters:
hfc The heavy ion filter control structure
pktBytes The number of bytes in pkt, includes the packet header
pkt The event data packet
siv The packet's state information vector
ixb The information exchange block
vetoes The active vetoes
result The filter result vector
Overview
This acts as a wrapper of the actual filter. This is were the sampling logic is implemented by the use prescalers. A prescaler is defined by a pair of integers; one giving the current countdown value and the other giving the refresh value. When the countdown value reaches 0, the prescaler is said to expire.
Types of prescaling
There are two kinds of samplings allow.
  1. Pass-thru sampling
  2. Individual veto sampling

Pass-Thru Sampling
Conceptually this is the easiest to understand. When the pass-thru prescaler expires, instead of using the normal veto mask, a 0 is used, effectively causing the filter to evaluate all its cuts but not allowing an cut to veto the event. While easy to understand, the event sample leaked through by this technique will be dominated by events that would normally have been rejected by the very early cuts.
Individual Veto Sampling
This prescaler type allows to ignore the reject decision of each veto bit. While a bit harder to understand than the Pass-Thru Sampling, this technique allows one to tap a predetermined percentage of events failing at each cut. The hope is that one will be a statisitically meaningful sample of events that would have normally failed some of the later cuts in the filter.

References hfcFilter().

unsigned int HFC_fwNeeds ( void   ) 

Returns a bit mask of the EDS_fw needs.

Returns:
A bit mask of the EDS_fw needs
Use
This value should be passed to EDS_fwRegister when registering the filter.

Referenced by hfc_construct().

unsigned int HFC_fwObjects ( void   ) 

Returns a bit mask of the EDS_fw objects used by the heavy ion filter.

Returns:
A bit mask of the EDS_fw needs
Use
This value should be passed to EDS_fwRegister when registering the filter.

Referenced by hfc_construct().

int HFC_resultSizeof ( const HFC hfc  ) 

Returns the size, in bytes, of one result vector.

Return values:
The size, in bytes, of one result vector
Parameters:
hfc The configuration control structure

int HFC_sizeof ( int  cnt  ) 

Sizes the heavy ion filtering control structure.

Returns:
Returns the size of the heavy ion filtering control structure
Parameters:
cnt Number of configurations to accommodate

static __inline int hfcFilter ( HFC hfc,
unsigned int  pktBytes,
EBF_pkt *  pkt,
EBF_siv  siv,
EDS_fwIxb *  ixb,
unsigned int  vetoes,
HFC_result result 
) [static]

Determines the fate of 1 event.

Returns:
Status mask, if the
  • < 0, reject
  • = 0, no decision
  • > 0, accept
Parameters:
hfc The heavy ion filter control structure
pktBytes The number of bytes in pkt, includes the packet header
pkt The event data packet
siv The packet's state information vector
ixb The information exchange block
vetoes The list of active vetoes
result The filter result vector

References _HFC_result::beg, _HfcCfgPrms::cal, _HFC_result::cal, cal_check(), _HFC::cfg, _HFC_result::chk, _HFC_result::dir, dir_check(), _HFC_result::evtNum, _HFC_result::gem, HFC_STATUS_M_ERR_CAL, HFC_STATUS_M_GEM_NOCALLO, HFC_STATUS_M_GEM_NOCNO, HFC_STATUS_M_GEM_NOTKR, HFC_STATUS_M_MULTI_PKT, HFC_STATUS_M_STAGE_CAL, HFC_STATUS_M_STAGE_DIR, HFC_STATUS_M_STAGE_GEM, HFC_STATUS_M_VETOED, ievt_store, isVetoed(), _HFC_cfg::prms, _HFC_result::status, and tmr_store.

Referenced by HFC_filter().

static __inline int isVetoed ( unsigned int  status,
unsigned int  vetoes 
) [static]

Checks whether any of the veto bits are up.

Returns:
Non-zero if the status bits contain any of the veto bits.
Parameters:
status The current set of status bits
vetoes The set of veto bits

Referenced by cal_check(), and hfcFilter().


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