1 #ifndef ALIFMDPARAMETERS_H
2 #define ALIFMDPARAMETERS_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights
6 * Latest changes by Christian Holm Christensen <cholm@nbi.dk>
8 * See cxx source for full Copyright notice
10 /** @file AliFMDParameters.h
11 @author Christian Holm Christensen <cholm@nbi.dk>
12 @date Mon Mar 27 12:44:43 2006
13 @brief Manager of FMD parameters
15 //____________________________________________________________________
17 // Singleton class to handle various parameters (not geometry) of the
19 // Should get ata fromm Conditions DB.
27 #ifndef ALIFMDUSHORTMAP_H
28 # include <AliFMDUShortMap.h>
30 #ifndef ALIFMDBOOLMAP_H
31 # include <AliFMDBoolMap.h>
33 typedef AliFMDUShortMap AliFMDCalibZeroSuppression;
34 typedef AliFMDBoolMap AliFMDCalibDeadMap;
35 class AliFMDCalibPedestal;
36 class AliFMDCalibGain;
37 class AliFMDCalibSampleRate;
38 class AliFMDCalibStripRange;
39 class AliFMDAltroMapping;
41 /** @brief This class is a singleton that handles various parameters
43 This class reads from the Conditions DB to get the various
44 parameters, which code can then request from here. In that way,
45 all code uses the same data, and the interface is consistent.
47 Some of the parameter managed are
48 - @c fPedestal, @c fPedestalWidth
49 Mean and width of the pedestal. The pedestal is simulated
50 by a Guassian, but derived classes my override MakePedestal
51 to simulate it differently (or pick it up from a database).
53 The dymamic MIP range of the VA1_ALICE pre-amplifier chip
54 - @c fAltroChannelSize
55 The largest number plus one that can be stored in one
56 channel in one time step in the ALTRO ADC chip.
58 How many times the ALTRO ADC chip samples the VA1_ALICE
59 pre-amplifier signal. The VA1_ALICE chip is read-out at
60 10MHz, while it's possible to drive the ALTRO chip at
61 25MHz. That means, that the ALTRO chip can have time to
62 sample each VA1_ALICE signal up to 2 times. Although it's
63 not certain this feature will be used in the production,
64 we'd like have the option, and so it should be reflected in
69 class AliFMDParameters : public TNamed
74 static AliFMDParameters* Instance();
76 /** Initialize the manager. This tries to read the parameters from
77 CDB. If that fails, the class uses the hard-coded parameters.
80 /** Print all parameters.
81 @param option Option string */
82 void Print(Option_t* option="A") const;
85 /** @name Set various `Fixed' parameters */
86 /** @param r How many MIP signals we can fit in the VA1
87 pre-amps. (default and design is 20) */
88 void SetVA1MipRange(UShort_t r=20) { fVA1MipRange = r; }
89 /** @param s Maximum number of the ADC (ALTRO). This is a 10 bit
90 ADC so, the maximum number is 1024 */
91 void SetAltroChannelSize(UShort_t s=1024) { fAltroChannelSize = s;}
92 /** @param size The number of strips multiplexed into one ALTRO
93 channel. That is, how many strips is connected to one VA1
95 void SetChannelsPerAltro(UShort_t size=128) { fChannelsPerAltro = size; }
96 /** @param f Factor to use for accepting a signal. */
97 void SetPedestalFactor(Float_t f=3) { fPedestalFactor = f; }
101 /** @name Set various variable parameter defaults */
102 /** @param s Zero suppression threshold in ADC counts */
103 void SetZeroSuppression(UShort_t s=0) { fFixedZeroSuppression = s; }
104 /** @param r How many times we oversample each strip. */
105 void SetSampleRate(UShort_t r=1) { fFixedSampleRate = (r>2?2:r);}
106 /** @param p Pedestal value in ADC counts */
107 void SetPedestal(Float_t p=10) { fFixedPedestal = p; }
108 /** @param w Pedestal width in ADC counts */
109 void SetPedestalWidth(Float_t w=1) { fFixedPedestalWidth = w; }
110 /** @param t Threshold used for 1 MIP acceptance. */
111 void SetThreshold(Float_t t=0) { fFixedThreshold = t; }
112 /** Range of strips read out
113 @param min Minimum strip number (0-127).
114 @param max Maximum strip number (0-127). */
115 void SetStripRange(UShort_t min=0, UShort_t max=127);
119 /** @name Get `Fixed' various parameters */
120 /** @return Number of MIP signals that fit inside a VA1 channel */
121 UShort_t GetVA1MipRange() const { return fVA1MipRange; }
122 /** @return The maximum count in the ADC */
123 UShort_t GetAltroChannelSize() const { return fAltroChannelSize; }
124 /** @return Number of strips muliplexed into one ADC channel */
125 UShort_t GetChannelsPerAltro() const { return fChannelsPerAltro; }
126 /** @return The average energy deposited by one MIP */
127 Float_t GetEdepMip() const;
128 /** @return The factor used of signal acceptance */
129 Float_t GetPedestalFactor() const { return fPedestalFactor; }
133 /** @name Get variable parameters */
134 /** Whether the strip is considered dead
135 @param detector Detector # (1-3)
136 @param ring Ring ID ('I' or 'O')
137 @param sector Sector number (0-39)
138 @param strip Strip number (0-511)
139 @return @c true if the strip is considered dead, @c false if
141 Bool_t IsDead(UShort_t detector,
144 UShort_t strip) const;
145 Float_t GetThreshold() const;
147 @param detector Detector # (1-3)
148 @param ring Ring ID ('I' or 'O')
149 @param sector Sector number (0-39)
150 @param strip Strip number (0-511)
151 @return Gain of pre-amp. */
152 Float_t GetPulseGain(UShort_t detector,
155 UShort_t strip) const;
156 /** Get mean of pedestal
157 @param detector Detector # (1-3)
158 @param ring Ring ID ('I' or 'O')
159 @param sector Sector number (0-39)
160 @param strip Strip number (0-511)
161 @return Mean of pedestal */
162 Float_t GetPedestal(UShort_t detector,
165 UShort_t strip) const;
166 /** Width of pedestal
167 @param detector Detector # (1-3)
168 @param ring Ring ID ('I' or 'O')
169 @param sector Sector number (0-39)
170 @param strip Strip number (0-511)
171 @return Width of pedestal */
172 Float_t GetPedestalWidth(UShort_t detector,
175 UShort_t strip) const;
176 /** zero suppression threshold (in ADC counts)
177 @param detector Detector # (1-3)
178 @param ring Ring ID ('I' or 'O')
179 @param sector Sector number (0-39)
180 @param strip Strip number (0-511)
181 @return zero suppression threshold (in ADC counts) */
182 UShort_t GetZeroSuppression(UShort_t detector,
185 UShort_t strip) const;
186 /** Get the sampling rate
187 @param detector Detector # (1-3)
188 @param ring Ring ID ('I' or 'O')
189 @param sector Sector number (0-39)
190 @param strip Strip number (0-511)
191 @return The sampling rate */
192 UShort_t GetSampleRate(UShort_t detector,
195 UShort_t strip) const;
196 /** Get the minimum strip in the read-out range
197 @param detector Detector # (1-3)
198 @param ring Ring ID ('I' or 'O')
199 @param sector Sector number (0-39)
200 @param strip Strip number (0-511)
201 @return Minimum strip */
202 UShort_t GetMinStrip(UShort_t detector,
205 UShort_t strip) const;
206 /** Get the maximum strip in the read-out range
207 @param detector Detector # (1-3)
208 @param ring Ring ID ('I' or 'O')
209 @param sector Sector number (0-39)
210 @param strip Strip number (0-511)
211 @return Maximum strip */
212 UShort_t GetMaxStrip(UShort_t detector,
215 UShort_t strip) const;
216 /** Translate hardware address to detector coordinates
217 @param ddl DDL number
218 @param addr Hardware address
219 @param det On return, Detector # (1-3)
220 @param ring On return, Ring ID ('I' or 'O')
221 @param sec On return, Sector number (0-39)
222 @param str On return, Strip number (0-511)
223 @return @c true on success. */
224 Bool_t Hardware2Detector(UInt_t ddl, UInt_t addr, UShort_t& det,
225 Char_t& ring, UShort_t& sec, UShort_t& str) const;
226 /** Translate detector coordinates to hardware address
227 @param det Detector # (1-3)
228 @param ring Ring ID ('I' or 'O')
229 @param sec Sector number (0-39)
230 @param str Strip number (0-511)
231 @param ddl On return, DDL number
232 @param addr On return, Hardware address
233 @return @c true on success. */
234 Bool_t Detector2Hardware(UShort_t det, Char_t ring, UShort_t sec,
235 UShort_t str, UInt_t& ddl, UInt_t& addr) const;
236 /** Get the map that translates hardware to detector coordinates
237 @return Get the map that translates hardware to detector
239 AliFMDAltroMapping* GetAltroMap() const;
243 kBaseDDL = 0x1000 // DDL offset for the FMD
245 static const char* fgkPulseGain; // Path to PulseGain calib object
246 static const char* fgkPedestal; // Path to Pedestal calib object
247 static const char* fgkDead; // Path to Dead calib object
248 static const char* fgkSampleRate; // Path to SampleRate calib object
249 static const char* fgkAltroMap; // Path to AltroMap calib object
250 static const char* fgkZeroSuppression; // Path to ZeroSuppression cal object
251 static const char* fgkStripRange; // Path to strip range cal object
256 virtual ~AliFMDParameters() {}
257 /** Singleton instance */
258 static AliFMDParameters* fgInstance; // Static singleton instance
259 /** Initialize gains. Try to get them from CDB */
260 void InitPulseGain();
261 /** Initialize pedestals. Try to get them from CDB */
263 /** Initialize dead map. Try to get it from CDB */
265 /** Initialize sample rates. Try to get them from CDB */
266 void InitSampleRate();
267 /** Initialize zero suppression thresholds. Try to get them from CDB */
268 void InitZeroSuppression();
269 /** Initialize hardware map. Try to get it from CDB */
271 /** Initialize strip range. Try to get it from CDB */
272 void InitStripRange();
274 Bool_t fIsInit; // Whether we've been initialised
276 const Float_t fSiDeDxMip; // MIP dE/dx in Silicon
277 UShort_t fVA1MipRange; // # MIPs the pre-amp can do
278 UShort_t fAltroChannelSize; // Largest # to store in 1 ADC ch.
279 UShort_t fChannelsPerAltro; // Number of pre-amp. chan/adc chan.
280 Float_t fPedestalFactor; // Number of pedestal widths
282 Float_t fFixedPedestal; // Pedestal to subtract
283 Float_t fFixedPedestalWidth; // Width of pedestal
284 UShort_t fFixedZeroSuppression; // Threshold for zero-suppression
285 UShort_t fFixedSampleRate; // Times the ALTRO samples pre-amp.
286 Float_t fFixedThreshold; //
287 UShort_t fFixedMinStrip;
288 UShort_t fFixedMaxStrip;
289 mutable Float_t fFixedPulseGain; //! Gain (cached)
290 mutable Float_t fEdepMip; //! Cache of energy loss for a MIP
292 AliFMDCalibZeroSuppression* fZeroSuppression; // Zero suppression from CDB
293 AliFMDCalibSampleRate* fSampleRate; // Sample rate from CDB
294 AliFMDCalibPedestal* fPedestal; // Pedestals
295 AliFMDCalibGain* fPulseGain; // Pulser gain
296 AliFMDCalibDeadMap* fDeadMap; // Pulser gain
297 AliFMDAltroMapping* fAltroMap; // Map of hardware
298 AliFMDCalibStripRange* fStripRange; // Strip range
300 ClassDef(AliFMDParameters,4)
304 //____________________________________________________________________