|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
#ifndef CSCSP_MEblock_h
#define CSCSP_MEblock_h
#include <cstring>
class CSCSP_MEblock {
private:
/////// word 1 ///////
// higher pattern number - straighter high-momentum tracks with more layers hit, also encodes half/di-strip indication
unsigned clct_pattern_number : 4;
unsigned quality_ : 4; // the more hits the higher LCT Quality
unsigned wire_group_id : 7; // radial position of the pattern within the chamber (0-111)
unsigned zero_1 : 1; // format specific
/////// word 2 ///////
unsigned
clct_pattern_id : 8; // azimuthal position ot the pattern at the third (key) layer: (0-159 for half-strips 0-39 for di-strips)
unsigned csc_id : 4; // chamber # (1-9)
unsigned left_right : 1; // L/R - track is heading towards lower/higher strip number
unsigned bx0_ : 1; // BX counter least significant bit
unsigned bc0_ : 1; // BC Zero flag marks that next BXN = 0
unsigned zero_2 : 1; // format specific
/////// word 3 ///////
unsigned me_bxn : 12; // LCT arrival time picked from a local 12-bit BX Counter, that runs at link timing
unsigned receiver_status_er1 : 1; // receiver status for the frame 1 (see below)
unsigned receiver_status_dv1 : 1; // receiver status for the frame 1 (see below)
unsigned
aligment_fifo_full : 1; // Alignment FIFO Full Flag, should be 0, if AF has been initialized successfully by L1Reset
unsigned zero_3 : 1; // format specific
/////// word 4 ///////
unsigned link_id : 2; // Link number (1-3) [reported by MPC on every L1 Reset]
unsigned mpc_id : 6; // MPC Crate number (0-63) [reported by MPC on every L1 Reset]
unsigned err_prop_cnt : 4; // accumulates the "Receive Error Propagation" occurrences since last L1Reset
unsigned receiver_status_er2 : 1; // receiver status for the frame 2 (see below)
unsigned receiver_status_dv2 : 1; // receiver status for the frame 2 (see below)
// Alignment FIFO Empty Flag, should be 0, if AF has been initialized successfully by L1Reset
unsigned aligment_fifo_empty : 1;
unsigned zero_4 : 1; // format specific
// Optical Receiver Status options:
// {receiver_status_dv, receiver_status_er} = {Receive Data Valid, Receive Error}
// {0,0} - Receive Idle Character;
// {0,1} - Receive Carrier Extend;
// {1,0} - Receive Normal Data Character <- expect to have;
// {1,1} - Receive Error Propagation;
// Other data members logically belong to ME Block record,
// but physically are located in Data Block Header, which implementation is:
friend class CSCSPRecord;
friend class CSCTFPacker;
// Let this class set following data memebers:
unsigned int tbin_; // time bin, that this ME block belongs to in global SP record
unsigned int valid_pattern; // LCT valid bit
unsigned int sync_error; // LCT synchronization error bit
unsigned int sync_modified; // LCT modified synchronization error bit
unsigned int alignment_fifo; // AF error
unsigned int bxBit; // monitors the ALCT/TMB/MPC timing
unsigned int spInput_; // Input SP link, this LCT come through [1..15] (as SP sees it)
public:
bool check(void) const throw() { return zero_1 != 0 || zero_2 != 0 || zero_3 != 0 || zero_4 != 0; }
unsigned int quality(void) const throw() { return quality_; }
unsigned int BXN(void) const throw() { return me_bxn; }
unsigned int bx0(void) const throw() { return bx0_; }
unsigned int bc0(void) const throw() { return bc0_; }
unsigned int spInput(void) const throw() { return spInput_; }
unsigned int link(void) const throw() { return link_id; }
unsigned int mpc(void) const throw() { return mpc_id; }
unsigned int csc(void) const throw() { return csc_id; }
unsigned int l_r(void) const throw() { return left_right; }
unsigned int wireGroup(void) const throw() { return wire_group_id; }
unsigned int strip(void) const throw() { return clct_pattern_id; }
unsigned int pattern(void) const throw() { return clct_pattern_number; }
enum AF { EMPTY = 1, FULL = 2 };
unsigned int aligment_fifo(void) const throw() { return (aligment_fifo_full << 1) | aligment_fifo_empty; }
enum RS { IDLE_CHARs = 0, CARRIER_EXTEND = 1, NORMAL_DATA = 2, ERROR_PROP = 3 };
unsigned int receiver_status_frame1(void) const throw() { return (receiver_status_dv1 << 1) | receiver_status_er1; }
unsigned int receiver_status_frame2(void) const throw() { return (receiver_status_dv2 << 1) | receiver_status_er2; }
unsigned int errCnt(void) const throw() { return err_prop_cnt; }
unsigned int tbin(void) const throw() { return tbin_; }
unsigned int vp(void) const throw() { return valid_pattern; }
unsigned int se(void) const throw() { return sync_error; }
unsigned int sm(void) const throw() { return sync_modified; }
unsigned int af(void) const throw() { return alignment_fifo; }
unsigned int timingError(void) const throw() { return bxBit; }
bool unpack(const unsigned short *&buf) throw() {
std::memcpy((void *)this, buf, 4 * sizeof(short));
buf += 4;
return check();
}
CSCSP_MEblock(void) {}
};
#endif
|