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 * Initializes the FPGA for reader-mode (field on), and acquires the samples.
  13 * @return number of bits sampled
  14 **/
  15 uint32_t SampleLF(bool silent, int sample_size);
  16
  17 /**
  18 * Initializes the FPGA for snoop-mode (field off), and acquires the samples.
  19 * @return number of bits sampled
  20 **/
  21 uint32_t SnoopLF();
  22
  23 // adds sample size to default options
  24 uint32_t DoPartialAcquisition(int trigger_threshold, bool silent, int sample_size);
  25
  26 /**
  27  * @brief Does sample acquisition, ignoring the config values set in the sample_config.
  28  * This method is typically used by tag-specific readers who just wants to read the samples
  29  * the normal way
  30  * @param trigger_threshold
  31  * @param silent
  32  * @return number of bits sampled
  33  */
  34 uint32_t DoAcquisition_default(int trigger_threshold, bool silent);
  35 /**
  36  * @brief Does sample acquisition, using the config values set in the sample_config.
  37  * @param trigger_threshold
  38  * @param silent
  39  * @return number of bits sampled
  40  */
  41
  42 uint32_t DoAcquisition_config(bool silent, int sample_size);
  43
  44 /**
  45 * Setup the FPGA to listen for samples. This method downloads the FPGA bitstream
  46 * if not already loaded, sets divisor and starts up the antenna.
  47 * @param divisor : 1, 88> 255 or negative ==> 134.8 KHz
  48 *                                  0 or 95 ==> 125 KHz
  49 *
  50 **/
  51 void LFSetupFPGAForADC(int divisor, bool lf_field);
  52
  53 /**
  54  * Called from the USB-handler to set the sampling configuration
  55  * The sampling config is used for std reading and snooping.
  56  *
  57  * Other functions may read samples and ignore the sampling config,
  58  * such as functions to read the UID from a prox tag or similar.
  59  *
  60  * Values set to '0' implies no change (except for averaging)
  61  * @brief setSamplingConfig
  62  * @param sc
  63  */
  64 void setSamplingConfig(sample_config *sc);
  65
  66 sample_config * getSamplingConfig();
  67
  68 void printConfig();
  69
  70
  71 #endif // LFSAMPLING_H