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[proxmark3-svn] / armsrc / lfsampling.h
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53d5dc64 1#ifndef __LFSAMPLING_H
2#define __LFSAMPLING_H
31abe49f 3
24c49d36 4#include "proxmark3.h"
5#include "apps.h"
6#include "util.h"
7#include "string.h"
8#include "usb_cdc.h" // for usb_poll_validate_length
9#include "ticks.h" // for StartTicks
10
53d5dc64 11typedef struct BitstreamOut BitstreamOut;
12
ac2df346 13/**
5f5b83b7 14* acquisition of Cotag LF signal. Similar to other LF, since the Cotag has such long datarate RF/384
15* and is Manchester?, we directly gather the manchester data into bigbuff
16**/
17void doCotagAcquisition(size_t sample_size);
18uint32_t doCotagAcquisitionManchester(void);
19
20/**
21* acquisition of T55x7 LF signal. Similar to other LF, but adjusted with @marshmellows thresholds
ac2df346 22* the data is collected in BigBuf.
23**/
94422fa2 24void doT55x7Acquisition(size_t sample_size);
ac2df346 25
31abe49f
MHS
26/**
27* Initializes the FPGA for reader-mode (field on), and acquires the samples.
28* @return number of bits sampled
29**/
1fbf8956 30uint32_t SampleLF(bool silent);
31abe49f
MHS
31
32/**
33* Initializes the FPGA for snoop-mode (field off), and acquires the samples.
34* @return number of bits sampled
35**/
36
37uint32_t SnoopLF();
38
39/**
40 * @brief Does sample acquisition, ignoring the config values set in the sample_config.
41 * This method is typically used by tag-specific readers who just wants to read the samples
42 * the normal way
43 * @param trigger_threshold
44 * @param silent
45 * @return number of bits sampled
46 */
47uint32_t DoAcquisition_default(int trigger_threshold, bool silent);
48/**
49 * @brief Does sample acquisition, using the config values set in the sample_config.
50 * @param trigger_threshold
51 * @param silent
52 * @return number of bits sampled
53 */
54
55uint32_t DoAcquisition_config( bool silent);
56
57/**
58* Setup the FPGA to listen for samples. This method downloads the FPGA bitstream
59* if not already loaded, sets divisor and starts up the antenna.
60* @param divisor : 1, 88> 255 or negative ==> 134.8 KHz
61* 0 or 95 ==> 125 KHz
62*
63**/
64void LFSetupFPGAForADC(int divisor, bool lf_field);
65
31abe49f
MHS
66/**
67 * Called from the USB-handler to set the sampling configuration
68 * The sampling config is used for std reading and snooping.
69 *
70 * Other functions may read samples and ignore the sampling config,
71 * such as functions to read the UID from a prox tag or similar.
72 *
73 * Values set to '0' implies no change (except for averaging)
74 * @brief setSamplingConfig
75 * @param sc
76 */
77void setSamplingConfig(sample_config *sc);
78
79sample_config * getSamplingConfig();
7838f4be 80
81void printConfig();
82
83
53d5dc64 84#endif // __LFSAMPLING_H
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