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31abe49f MHS |
1 | #ifndef LFSAMPLING_H |
2 | #define LFSAMPLING_H | |
3 | ||
e04475c4 | 4 | /** |
5 | * acquisition of Cotag LF signal. Similar to other LF, since the Cotag has such long datarate RF/384 | |
6 | * and is Manchester?, we directly gather the manchester data into bigbuff | |
7 | **/ | |
8 | void doCotagAcquisition(size_t sample_size); | |
9 | uint32_t doCotagAcquisitionManchester(void); | |
10 | ||
7cfc777b | 11 | /** |
12 | * acquisition of T55x7 LF signal. Similart to other LF, but adjusted with @marshmellows thresholds | |
13 | * the data is collected in BigBuf. | |
14 | **/ | |
66837a03 | 15 | void doT55x7Acquisition(size_t sample_size); |
7cfc777b | 16 | |
31abe49f MHS |
17 | /** |
18 | * Initializes the FPGA for reader-mode (field on), and acquires the samples. | |
19 | * @return number of bits sampled | |
20 | **/ | |
1fbf8956 | 21 | uint32_t SampleLF(bool silent); |
31abe49f MHS |
22 | |
23 | /** | |
24 | * Initializes the FPGA for snoop-mode (field off), and acquires the samples. | |
25 | * @return number of bits sampled | |
26 | **/ | |
31abe49f MHS |
27 | uint32_t SnoopLF(); |
28 | ||
a37228c8 | 29 | // adds sample size to default options |
30 | uint32_t DoPartialAcquisition(int trigger_threshold, bool silent, int sample_size); | |
31 | ||
31abe49f MHS |
32 | /** |
33 | * @brief Does sample acquisition, ignoring the config values set in the sample_config. | |
34 | * This method is typically used by tag-specific readers who just wants to read the samples | |
35 | * the normal way | |
36 | * @param trigger_threshold | |
37 | * @param silent | |
38 | * @return number of bits sampled | |
39 | */ | |
40 | uint32_t DoAcquisition_default(int trigger_threshold, bool silent); | |
41 | /** | |
42 | * @brief Does sample acquisition, using the config values set in the sample_config. | |
43 | * @param trigger_threshold | |
44 | * @param silent | |
45 | * @return number of bits sampled | |
46 | */ | |
47 | ||
48 | uint32_t DoAcquisition_config( bool silent); | |
49 | ||
50 | /** | |
51 | * Setup the FPGA to listen for samples. This method downloads the FPGA bitstream | |
52 | * if not already loaded, sets divisor and starts up the antenna. | |
53 | * @param divisor : 1, 88> 255 or negative ==> 134.8 KHz | |
54 | * 0 or 95 ==> 125 KHz | |
55 | * | |
56 | **/ | |
57 | void LFSetupFPGAForADC(int divisor, bool lf_field); | |
58 | ||
31abe49f MHS |
59 | /** |
60 | * Called from the USB-handler to set the sampling configuration | |
61 | * The sampling config is used for std reading and snooping. | |
62 | * | |
63 | * Other functions may read samples and ignore the sampling config, | |
64 | * such as functions to read the UID from a prox tag or similar. | |
65 | * | |
66 | * Values set to '0' implies no change (except for averaging) | |
67 | * @brief setSamplingConfig | |
68 | * @param sc | |
69 | */ | |
70 | void setSamplingConfig(sample_config *sc); | |
71 | ||
72 | sample_config * getSamplingConfig(); | |
e2012d1b MHS |
73 | |
74 | void printConfig(); | |
75 | ||
76 | ||
31abe49f | 77 | #endif // LFSAMPLING_H |