File content as of revision 174:0f86eedd511c:

#ifndef __DEVICE_COUNTERS_H__
#define __DEVICE_COUNTERS_H__

//Dither latched counters typedefs
typedef struct _DeviceCountersDitherLatchedSettings {
} DeviceCountersDitherLatchedSettings;

typedef struct _DeviceCountersDitherLatchedState {
  int32_t delta[32];    //Cyclic buffer of QEI counts with (32 * oscillation frequency) update frequency
  int32_t angle;        //Sum of last 32 deltas from delta buffer - angle accumulated for 1 vibro cycle till now
  int32_t displacement; //Sum of last 16 deltas minus sum of previous 16 deltas from delta buffer - displacement
  int32_t amplitude;    //Sum of positive displacements minus negative displacements from last 32 displacements - dither "amplitude"
  int32_t frequency;    //Sum of positive deltas minus negative deltas from last 32 deltas - dither "output frequency"
  int32_t accumulator;  //Angle accumulated between user read requests, or between periodic answers
} DeviceCountersDitherLatchedState;

typedef struct _DeviceCountersDitherLatched {
  DeviceCountersDitherLatchedSettings settings;
  DeviceCountersDitherLatchedState state;
} DeviceCountersDitherLatched;

//Reconstructed meander latched counters typedefs
typedef struct _DeviceCountersMeanderLatchedSettings {
} DeviceCountersMeanderLatchedSettings;

typedef struct _DeviceCountersMeanderLatchedState {
  int32_t a;            //Positive counts
  int32_t b;            //Negative counts
} DeviceCountersMeanderLatchedState;

typedef struct _DeviceCountersMeanderLatched {
  DeviceCountersMeanderLatchedSettings settings;
  DeviceCountersMeanderLatchedState state;
} DeviceCountersMeanderLatched;

//Virtual zero sensor latched counters typedefs
typedef struct _DeviceCountersZeroLatchedSettings {
} DeviceCountersZeroLatchedSettings;

typedef struct _DeviceCountersZeroLatchedState {
  int32_t a;            //Positive counts
  int32_t b;            //Negative counts
} DeviceCountersZeroLatchedState;

typedef struct _DeviceCountersZeroLatched {
  DeviceCountersZeroLatchedSettings settings;
  DeviceCountersZeroLatchedState state;
} DeviceCountersZeroLatched;

//Counters typedefs
typedef struct _DeviceCounters {
  DeviceCountersDitherLatched dither; //Counters latched by dither (measurement) cycle
  DeviceCountersMeanderLatched meander;      //Counters latched by restored meander (angular velocity reverse latched)
  DeviceCountersZeroLatched zero;            //Counters latched by virtual zero position sensor
} DeviceCounters;

/*
typedef struct _DeviceCountersSettings {
} DeviceCountersSettings;

typedef struct _DeviceCountersState {
  int32_t delta[32];    //Cyclic buffer of QEI counts with (32 * oscillation frequency) update frequency
  int32_t angle;        //Sum of last 32 deltas from delta buffer - angle accumulated for 1 vibro cycle till now
  int32_t displacement; //Sum of last 16 deltas minus sum of previous 16 deltas from delta buffer - displacement
  int32_t amplitude;    //Sum of positive displacements minus negative displacements from last 32 displacements - dither "amplitude"
  int32_t frequency;    //Sum of positive deltas minus negative deltas from last 32 deltas - dither "output frequency"
  int32_t accumulator;  //Angle accumulated between user read requests, or between periodic answers
} DeviceCountersState;

typedef struct _DeviceCounters {
  DeviceCountersSettings settings;
  DeviceCountersState state;
} DeviceCounters;
*/

void InitCountersDefaultSettings(void);
void InitCountersState(void);
void DeviceStartCounters(void);

void countersProcess(void);

#endif  /* __DEVICE_COUNTERS_H__ */