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[proxmark3-svn] / armsrc / lfsampling.h
1 #ifndef LFSAMPLING_H
2 #define LFSAMPLING_H
3
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
11 /**
12 * acquisition of T55x7 LF signal. Similart to other LF, but adjusted with @marshmellows thresholds
13 * the data is collected in BigBuf.
14 **/
15 void doT55x7Acquisition(size_t sample_size);
16
17 /**
18 * Initializes the FPGA for reader-mode (field on), and acquires the samples.
19 * @return number of bits sampled
20 **/
21 uint32_t SampleLF(bool silent);
22
23 /**
24 * Initializes the FPGA for snoop-mode (field off), and acquires the samples.
25 * @return number of bits sampled
26 **/
27 uint32_t SnoopLF();
28
29 // adds sample size to default options
30 uint32_t DoPartialAcquisition(int trigger_threshold, bool silent, int sample_size);
31
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
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();
73
74 void printConfig();
75
76
77 #endif // LFSAMPLING_H
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