mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-11-10 17:49:32 +08:00
104 lines
3.1 KiB
C
104 lines
3.1 KiB
C
#ifndef __LFSAMPLING_H
|
|
#define __LFSAMPLING_H
|
|
|
|
#include "common.h"
|
|
#include "pm3_cmd.h"
|
|
|
|
typedef struct {
|
|
uint8_t *buffer;
|
|
uint32_t numbits;
|
|
uint32_t position;
|
|
} BitstreamOut;
|
|
|
|
typedef struct {
|
|
int dec_counter;
|
|
uint32_t sum;
|
|
uint32_t counter;
|
|
uint32_t total_saved;
|
|
} sampling_t;
|
|
|
|
/**
|
|
* acquisition of Cotag LF signal. Similar to other LF, since the Cotag has such long datarate RF/384
|
|
* and is Manchester?, we directly gather the manchester data into bigbuff
|
|
**/
|
|
void doCotagAcquisition(size_t sample_size);
|
|
uint32_t doCotagAcquisitionManchester(void);
|
|
|
|
/**
|
|
* acquisition of T55x7 LF signal. Similar to other LF, but adjusted with @marshmellows thresholds
|
|
* the data is collected in BigBuf.
|
|
**/
|
|
void doT55x7Acquisition(size_t sample_size);
|
|
|
|
/**
|
|
* Initializes the FPGA for reader-mode (field on), and acquires the samples.
|
|
* @return number of bits sampled
|
|
**/
|
|
uint32_t SampleLF(bool verbose, uint32_t sample_size);
|
|
|
|
/**
|
|
* Initializes the FPGA for sniff-mode (field off), and acquires the samples.
|
|
* @return number of bits sampled
|
|
**/
|
|
uint32_t SniffLF();
|
|
|
|
uint32_t DoAcquisition(uint8_t decimation, uint8_t bits_per_sample, bool avg, int16_t trigger_threshold,
|
|
bool verbose, uint32_t sample_size, uint32_t cancel_after, int32_t samples_to_skip);
|
|
|
|
// adds sample size to default options
|
|
uint32_t DoPartialAcquisition(int trigger_threshold, bool verbose, uint32_t sample_size, uint32_t cancel_after);
|
|
|
|
/**
|
|
* @brief Does sample acquisition, ignoring the config values set in the sample_config.
|
|
* This method is typically used by tag-specific readers who just wants to read the samples
|
|
* the normal way
|
|
* @param trigger_threshold
|
|
* @param verbose
|
|
* @return number of bits sampled
|
|
*/
|
|
uint32_t DoAcquisition_default(int trigger_threshold, bool verbose);
|
|
/**
|
|
* @brief Does sample acquisition, using the config values set in the sample_config.
|
|
* @param trigger_threshold
|
|
* @param verbose
|
|
* @return number of bits sampled
|
|
*/
|
|
|
|
uint32_t DoAcquisition_config(bool verbose, uint32_t sample_size);
|
|
|
|
/**
|
|
* Refactoring of lf sampling buffer
|
|
*/
|
|
void initSampleBuffer(uint32_t *sample_size);
|
|
void initSampleBufferEx(uint32_t *sample_size, bool use_malloc);
|
|
void logSampleSimple(uint8_t sample);
|
|
void logSample(uint8_t sample, uint8_t decimation, uint8_t bits_per_sample, bool avg);
|
|
uint32_t getSampleCounter();
|
|
|
|
/**
|
|
* Setup the FPGA to listen for samples. This method downloads the FPGA bitstream
|
|
* if not already loaded, sets divisor and starts up the antenna.
|
|
* @param divisor : 1, 88> 255 or negative ==> 134.8 kHz
|
|
* 0 or 95 ==> 125 kHz
|
|
*
|
|
**/
|
|
void LFSetupFPGAForADC(int divisor, bool lf_field);
|
|
|
|
/**
|
|
* Called from the USB-handler to set the sampling configuration
|
|
* The sampling config is used for std reading and sniffing.
|
|
*
|
|
* Other functions may read samples and ignore the sampling config,
|
|
* such as functions to read the UID from a prox tag or similar.
|
|
*
|
|
* Values set to '0' implies no change (except for averaging)
|
|
* @brief setSamplingConfig
|
|
* @param sc
|
|
*/
|
|
void setSamplingConfig(sample_config *sc);
|
|
|
|
sample_config *getSamplingConfig();
|
|
|
|
void printConfig();
|
|
|
|
#endif // __LFSAMPLING_H
|