git.zerfleddert.de Git - proxmark3-svn/blob - 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
  28 uint32_t SnoopLF();
  29
  30 /**
  31  * @brief Does sample acquisition, ignoring the config values set in the sample_config.
  32  * This method is typically used by tag-specific readers who just wants to read the samples
  33  * the normal way
  34  * @param trigger_threshold
  35  * @param silent
  36  * @return number of bits sampled
  37  */
  38 uint32_t DoAcquisition_default(int trigger_threshold, bool silent);
  39 /**
  40  * @brief Does sample acquisition, using the config values set in the sample_config.
  41  * @param trigger_threshold
  42  * @param silent
  43  * @return number of bits sampled
  44  */
  45
  46 uint32_t DoAcquisition_config( bool silent);
  47
  48 /**
  49 * Setup the FPGA to listen for samples. This method downloads the FPGA bitstream
  50 * if not already loaded, sets divisor and starts up the antenna.
  51 * @param divisor : 1, 88> 255 or negative ==> 134.8 KHz
  52 *                                  0 or 95 ==> 125 KHz
  53 *
  54 **/
  55 void LFSetupFPGAForADC(int divisor, bool lf_field);
  56
  57 /**
  58  * Called from the USB-handler to set the sampling configuration
  59  * The sampling config is used for std reading and snooping.
  60  *
  61  * Other functions may read samples and ignore the sampling config,
  62  * such as functions to read the UID from a prox tag or similar.
  63  *
  64  * Values set to '0' implies no change (except for averaging)
  65  * @brief setSamplingConfig
  66  * @param sc
  67  */
  68 void setSamplingConfig(sample_config *sc);
  69
  70 sample_config * getSamplingConfig();
  71
  72 void printConfig();
  73
  74
  75 #endif // LFSAMPLING_H