#ifndef SLS_DETECTOR_DEFS_H
#define SLS_DETECTOR_DEFS_H

#include <stdint.h> 


typedef float float32_t;
typedef int int32_t;    

/** 
    \file sls_detector_defs.h
This file contains all the basic definitions common to the slsDetector class 
and to the server programs running on the detector


 * @author Anna Bergamaschi
 * @version 0.1alpha (any string)
 * @see slsDetector
*/

/** default maximum string length */
#define MAX_STR_LENGTH 1000

/** get flag form most functions */
#define GET_FLAG -1
/** 
    structure for a detector channel
    should not be used by unexperienced users

    \see  ::channelRegisterBit
*/
typedef struct {
  int chan; /**< is the  channel number */
  int chip; /**< is the  chip number */
  int module; /**< is the  module number */
  int64_t reg;   /**< is the is the channel register (e.g. trimbits, calibration enable, comparator enable...) */
} sls_detector_channel;

/** 
    structure for a detector chip
    should not be used by unexperienced users
    \see  ::chipRegisterBit ::channelRegisterBit
*/
typedef struct  {
  int chip;   /**< is the chip number */
  int module;  /**< is the module number */
  int nchan; /**< is the number of channels in the chip */
  int reg; /**<is the chip register (e.g. output analogue buffer enable) 
	      \see ::chipRegisterBit */
  int *chanregs; /**< is the pointer to the array of the channel registers 
		    \see ::channelRegisterBit */
} sls_detector_chip;

/** 
    structure for a detector module
    should not be used by unexperienced users
    
    \see  :: moduleRegisterBit ::chipRegisterBit :channelRegisterBit

    @li reg is the module register (e.g. dynamic range? see moduleRegisterBit)
    @li dacs is the pointer to the array of dac values (in V)
    @li adcs is the pointer to the array of adc values (in V)
    @li chipregs is the pointer to the array of chip registers
    @li chanregs is the pointer to the array of channel registers
    @li gain is the module gain
    @li offset is the module offset
*/
typedef struct {
  int module; /**< is the module number */
  int serialnumber;  /**< is the module serial number */
  int nchan; /**< is the number of channels per chip */
  int nchip; /**< is the number of chips on the module */
  int ndac; /**< is the number of dacs on the module */
  int nadc; /**< is the number of adcs on the module */
  int reg; /**< is the module register (e.g. dynamic range?) 
	      \see moduleRegisterBit */
  float *dacs; /**< is the pointer to the array of the dac values (in V) */
  float *adcs;  /**< is the pointer to the array of the adc values (in V) */
  int *chipregs; /**< is the pointer to the array of the chip registers 
		    \see ::chipRegisterBit */
  int *chanregs; /**< is the pointer to the array of the channel registers 
		    \see ::channelRegisterBit */
  float gain;  /**< is the module gain (V/keV) */
  float offset;  /**< is the module offset (V) */
} sls_detector_module;

/** 
    structure for a region of interest
    
    xmin,xmax,ymin,ymax define the limits of the region
*/
typedef struct {
  int xmin;  /**< is the roi xmin (in channel number) */
  int xmax;  /**< is the roi xmax  (in channel number)*/
  int ymin;  /**< is the roi ymin  (in channel number)*/
  int ymax;   /**< is the roi ymax  (in channel number)*/
} ROI ;

/** 
    structure for a generic integer array
   
*/
typedef struct {

  int len;  /**< is the number of elements of the array */
  int *iptr; /**<  is the pointer to the array */
} iarray ;


/** 
     Type of the detector
*/
enum detectorType {
  GET_DETECTOR_TYPE=-1,   /**< the detector will return its type */
  GENERIC,  /**< generic sls detector */
  MYTHEN, /**< mythen */
  PILATUS, /**< pilatus */
  EIGER, /**< eiger */
  GOTTHARD, /**< gotthard */
  PICASSO, /**< picasso */
  AGIPD /**< agipd */
};

/** 
     Communication protocol (normally TCP)
*/
enum communicationProtocol{
  TCP,  /**< TCP/IP */
  UDP /**< UDP */
};


/** 
     flags to get (or set) the size of the detector
*/
enum numberOf {
  MAXMODX, /**<maximum number of module in X direction */
  MAXMODY, /**<maximum number of module in Y direction */
  NMODX, /**<installed number of module in X direction */
  NMODY, /**<installed number of module in Y direction */
  NCHANSX, /**<number of channels in X direction */
  NCHANSY, /**<number of channels in Y direction */
  NCHIPSX, /**<number of chips in X direction */
  NCHIPSY /**<number of chips in Y direction */
};

/** 
    dimension indexes
*/
enum dimension {
  X=0, /**< X dimension */
  Y=1, /**< Y dimension */
  Z=2 /**< Z dimension */
};

/** 
    return values
*/
enum  {
  OK, /**< function succeeded */
  FAIL, /**< function failed */
  FINISHED /**< acquisition finished */
};

/** 
   enable/disable flags
*/
enum {
  DISABLED, /**<flag disabled */
  ENABLED /**<flag enabled */
};

/** 
  use of the external signals
*/
enum externalSignalFlag {
  GET_EXTERNAL_SIGNAL_FLAG=-1,  /**<return flag for signal */
  SIGNAL_OFF, /**<signal unused*/
  GATE_IN_ACTIVE_HIGH,  /**<input gate active high*/
  GATE_IN_ACTIVE_LOW,  /**<input gate active low */
  TRIGGER_IN_RISING_EDGE,  /**<input exposure trigger on rising edge */
  TRIGGER_IN_FALLING_EDGE, /**<input exposure trigger on falling edge */
  RO_TRIGGER_IN_RISING_EDGE,  /**<input raedout trigger on rising edge */
  RO_TRIGGER_IN_FALLING_EDGE, /**<input readout trigger on falling edge */
  GATE_OUT_ACTIVE_HIGH, /**<output active high when detector is exposing*/
  GATE_OUT_ACTIVE_LOW,  /**<output active low when detector is exposing*/
  TRIGGER_OUT_RISING_EDGE,  /**<output trigger rising edge at start of exposure */
  TRIGGER_OUT_FALLING_EDGE, /**<output trigger falling edge at start of exposure */
  RO_TRIGGER_OUT_RISING_EDGE,   /**<output trigger rising edge at start of readout */
  RO_TRIGGER_OUT_FALLING_EDGE  /**<output trigger falling edge at start of readout */
};

/** 
  communication mode using external signals (obsolete: it will be authomatically determined by the external signal flags)

\see ::externalSignalFlag
*/
enum externalCommunicationMode{
  GET_EXTERNAL_COMMUNICATION_MODE=-1,
  AUTO,
  TRIGGER_EXPOSURE,
  TRIGGER_READOUT,
  TRIGGER_COINCIDENCE_WITH_INTERNAL_ENABLE,
  GATE_FIX_NUMBER,
  GATE_FIX_DURATION,
  GATE_WITH_START_TRIGGER,
  GATE_COINCIDENCE_WITH_INTERNAL_ENABLE
};
/** 
    detector IDs/versions
*/
enum idMode{
  MODULE_SERIAL_NUMBER, /**<return module serial number */
  MODULE_FIRMWARE_VERSION,  /**<return module firmware */
  DETECTOR_SERIAL_NUMBER,  /**<return detector system serial number */
  DETECTOR_FIRMWARE_VERSION,  /**<return detector system firmware version */
  DETECTOR_SOFTWARE_VERSION,   /**<return detector system software version */
  THIS_SOFTWARE_VERSION  /**<return this software version */
};
/** 
    detector digital test modes
*/
enum digitalTestMode {
  CHIP_TEST, /**< test chips */
  MODULE_FIRMWARE_TEST,  /**< test module firmware */
  DETECTOR_FIRMWARE_TEST,  /**< test detector system firmware */
  DETECTOR_MEMORY_TEST,  /**< test detector system memory */
  DETECTOR_BUS_TEST,  /**< test detector system CPU-FPGA bus */
  DETECTOR_SOFTWARE_TEST  /**< test detector system software */
};
/** 
    detector analogue test modes
*/
enum analogTestMode {
  CALIBRATION_PULSES,  /**< test using calibration pulses */
  MY_ANALOG_TEST_MODE  /**< other possible test modes */
};

/** 
   detector dacs indexes
*/
enum dacIndex {
  THRESHOLD,  /**< comparator threshold level */
  CALIBRATION_PULSE,  /**< calibration input pulse height */
  TRIMBIT_SIZE,   /**< voltage to determine the trimbits LSB */
  PREAMP,   /**< preamp feedback */
  SHAPER1,    /**< shaper1 feedback */
  SHAPER2,  /**< shaper2 feedback */
  TEMPERATURE,  /**< temperature sensor (adc) */
  HUMIDITY,  /**< humidity sensor (adc) */
  DETECTOR_BIAS,   /**< detector bias */
  VA_POT, /**< power supply va */
  VDD_POT, /**< chiptest board power supply vdd */
  VSH_POT, /**< chiptest board power supply vsh */
  VIO_POT, /**< chiptest board power supply va */
  HV_POT, /**< chiptest board high voltage */
  G_VREF_DS,  /**< gotthard */
  G_VCASCN_PB,  /**< gotthard  */ 
  G_VCASCP_PB,  /**< gotthard   */ 
  G_VOUT_CM,  /**< gotthard   */ 
  G_VCASC_OUT,  /**<  gotthard  */ 
  G_VIN_CM,   /**< gotthard   */
  G_VREF_COMP,  /**<  gotthard  */ 
  G_IB_TESTC  /**< gotthard   */
};

/** 
   detector settings indexes
*/
enum detectorSettings{  
  GET_SETTINGS=-1,  /**< return current detector settings */
  STANDARD,   /**< standard settings */
  FAST,   /**< fast settings */
  HIGHGAIN,  /**< highgain  settings */
  DYNAMICGAIN,  /**< dynamic gain  settings */
  GAIN1, /**< gain 1  settings */
  GAIN2, /**< gain 2  settings */
  GAIN3, /**< gain 3  settings */
  UNDEFINED,  /**< undefined or custom  settings */
  UNINITIALIZED  /**< uninitialiazed (status at startup) */
};
/** 
   meaning of the channel register bits
   \see ::sls_detector_channel
*/
enum channelRegisterBit {
  TRIMBIT_OFF=0,  /**< offset of trimbit value in the channel register  */
  COMPARATOR_ENABLE=0x100,  /**< mask of the comparator enable bit  */
  ANALOG_SIGNAL_ENABLE=0x200, /**< mask of the analogue output enable bit  */
  CALIBRATION_ENABLE=0x300, /**< mask of the calibration input enable bit  */
};
/** 
   meaning of the chip register bits
   \see ::sls_detector_chip
*/
enum chipRegisterBit {
  ENABLE_ANALOG_OUTPUT=0x1, /**< mask of the analogue output enable bit  */
  CHIP_OUTPUT_WIDTH=0x2 /**< mask of the chip output width  */
};
/** 
   meaning of the module register bits
*/
enum moduleRegisterBit {
  MY_MODULE_REGISTER_BIT,  /**< possible module register bit meaning  */
  MODULE_OUTPUT_WIDTH   /**< possibly module dynamic range  */
};

/** 
   indexes for the acquisition timers
*/
enum timerIndex {
  FRAME_NUMBER, /**< number of real time frames: total number of acquisitions is number or frames*number of cycles */
  ACQUISITION_TIME, /**< exposure time */
  FRAME_PERIOD, /**< period between exposures */
  DELAY_AFTER_TRIGGER, /**< delay between trigger and start of exposure or readout (in triggered mode) */
  GATES_NUMBER, /**< number of gates per frame (in gated mode) */
  PROBES_NUMBER, /**< number of probe types in pump-probe mode */
  CYCLES_NUMBER, /**< number of cycles: total number of acquisitions is number or frames*number of cycles */
  ACTUAL_TIME, /**< Actual time of the detector's internal timer */
  MEASUREMENT_TIME,  /**< Time of the measurement from the detector (fifo) */

  PROGRESS /**< fraction of measurement elapsed - only get! */
};

/** 
  important speed parameters
*/
enum speedVariable {
  CLOCK_DIVIDER, /**< readout clock divider */
  WAIT_STATES, /**< wait states for bus read */
  TOT_CLOCK_DIVIDER, /**< wait states for bus read */
  TOT_DUTY_CYCLE, /**< wait states for bus read */
  SET_SIGNAL_LENGTH /**< set/clear signal length */
};

/** 
  staus mask
*/
enum runStatus {
  IDLE, /**< detector ready to start acquisition - no data in memory */
  ERROR, /**< error i.e. normally fifo full */
  WAITING, /**< waiting for trigger or gate signal */
  RUN_FINISHED, /**< acquisition not running but data in memory */
  TRANSMITTING, /**< acquisition running and data in memory */
  RUNNING /**< acquisition  running, no data in memory */
};

/** 
   readout flags
*/
enum readOutFlags {
  GET_READOUT_FLAGS=-1, /**< return readout flags */
  NORMAL_READOUT=0, /**< no flag */
  STORE_IN_RAM=0x1, /**< data are stored in ram and sent only after end of acquisition for faster frame rate */
  READ_HITS=0x2, /**< return only the number of the channel which counted ate least one */
  ZERO_COMPRESSION=0x4,/**< returned data are 0-compressed */
  PUMP_PROBE_MODE=0x8,/**<pump-probe mode */
  BACKGROUND_CORRECTIONS=0x1000, /**<background corrections */
  TOT_MODE=0x2000,/**<pump-probe mode */
  CONTINOUS_RO=0x4000/**<pump-probe mode */
};
/** 
   trimming modes
*/
enum trimMode {
  NOISE_TRIMMING, /**< trim with noise */
  BEAM_TRIMMING, /**< trim with x-rays (on all 63 bits) */
  IMPROVE_TRIMMING, /**< trim with x-rays (on a limited range of bits - should start from an already trimmed mode) */
  FIXEDSETTINGS_TRIMMING,/**< trim without optimizing the threshold and the trimbit size */
  OFFLINE_TRIMMING /**< trimming is performed offline */
};
/** 
   data correction flags
*/
enum correctionFlags {
  DISCARD_BAD_CHANNELS, /**< bad channels are discarded */
  AVERAGE_NEIGHBOURS_FOR_BAD_CHANNELS,  /**< bad channels are replaced with the avergae of the neighbours */
  FLAT_FIELD_CORRECTION,  /**< data are flat field corrected */
  RATE_CORRECTION,  /**< data are rate corrected */
  ANGULAR_CONVERSION,/**< angular conversion is calculated */
  I0_NORMALIZATION
};

/** 
   function indexes to call on the server


   All set functions with argument -1 work as get, when possible 

*/

enum {

  // General purpose functions
  F_EXEC_COMMAND=0, /**< command is executed */
  F_GET_ERROR,  /**< return detector error status */

  // configuration  functions
  F_GET_DETECTOR_TYPE, /**< return detector type */
  F_SET_NUMBER_OF_MODULES, /**< set/get number of installed modules */
  F_GET_MAX_NUMBER_OF_MODULES, /**< get maximum number of installed modules */
  F_SET_EXTERNAL_SIGNAL_FLAG,  /**< set/get flag for external signal */
  F_SET_EXTERNAL_COMMUNICATION_MODE, /**< set/get  external communication mode (obsolete) */


  // Tests and identification

  F_GET_ID, /**< get detector id of version */
  F_DIGITAL_TEST,  /**< digital test of the detector */
  F_ANALOG_TEST,  /**<analog test of the detector */
  F_ENABLE_ANALOG_OUT,  /**<enable the analog output */
  F_CALIBRATION_PULSE,  /**<pulse the calibration input */

  // Initialization functions
  F_SET_DAC,   /**< set DAC value */
  F_GET_ADC,  /**< get ADC value */
  F_WRITE_REGISTER,  /**< write to register */
  F_READ_REGISTER, /**< read register */
  F_WRITE_MEMORY,  /**< write to memory */
  F_READ_MEMORY, /**< read memory */


  F_SET_CHANNEL,  /**< initialize channel */
  F_GET_CHANNEL,  /**< get channel register */
  F_SET_ALL_CHANNELS,  /**< initialize all channels */

  F_SET_CHIP,  /**< initialize chip */
  F_GET_CHIP,  /**< get chip status */
  F_SET_ALL_CHIPS,  /**< initialize all chips */

  F_SET_MODULE, /**< initialize module */
  F_GET_MODULE,  /**< get module status */
  F_SET_ALL_MODULES,  /**< initialize all modules */


  F_SET_SETTINGS,  /**< set detector settings */
  F_GET_THRESHOLD_ENERGY,  /**< get detector threshold (in eV) */
  F_SET_THRESHOLD_ENERGY,  /**< set detector threshold (in eV) */


  // Acquisition functions
  F_START_ACQUISITION, /**< start acquisition */
  F_STOP_ACQUISITION, /**< stop acquisition */
  F_START_READOUT, /**< start readout */
  F_GET_RUN_STATUS,  /**< get acquisition status */
  F_START_AND_READ_ALL,  /**< start acquisition and read all frames*/
  F_READ_FRAME,  /**< read one frame */
  F_READ_ALL,  /**< read alla frames */
  
  //Acquisition setup functions
  F_SET_TIMER,  /**< set/get timer value */
  F_GET_TIME_LEFT,  /**< get current value of the timer (time left) */



  F_SET_DYNAMIC_RANGE,  /**< set/get detector dynamic range */
  F_SET_READOUT_FLAGS,  /**< set/get readout flags */
  F_SET_ROI,  /**< set/get region of interest */

  F_SET_SPEED,  /**< set/get readout speed parameters */

  //Trimming
  F_EXECUTE_TRIMMING,   /**< execute trimming */

  F_EXIT_SERVER,  /**< turn off detector server */

  F_GET_TEMPERATURE,
  F_SET_GOTTHARD,
  F_GET_GOTTHARD


  /* Always append functions hereafter!!! */


};


/**
   angular conversion constant for a module
 */
typedef struct  {
  float center;  /**< center of the module (channel at which the radius is perpendicular to the module surface) */
  float ecenter; /**< error in the center determination */
  float r_conversion;  /**<  detector pixel size (or strip pitch) divided by the diffractometer radius */
  float er_conversion;  /**< error in the r_conversion determination */
  float offset; /**< the module offset i.e. the position of channel 0 with respect to the diffractometer 0 */
  float eoffset; /**< error in the offset determination */
  float tilt; /**< ossible tilt in the orthogonal direction (unused)*/
  float etilt; /**< error in the tilt determination */
} angleConversionConstant;


#endif