#ifndef WF_HANDLER_H_INCLUDED
#define WF_HANDLER_H_INCLUDED

#include <rtems.h>
#include <grspw.h>
#include <stdio.h>
#include <math.h>
#include <fsw_params.h>

#include "fsw_init.h"
#include "fsw_params_wf_handler.h"

#define pi 3.14159265359
#define T0_IN_FINETIME  ( 65536. / 24576. )
#define T1_IN_FINETIME  ( 65536. / 4096.  )
#define T2_IN_FINETIME  ( 65536. / 256.   )
#define T3_IN_FINETIME  ( 65536. / 16.    )

#define TICKS_PER_T1    16
#define TICKS_PER_T2    256
#define TICKS_PER_S     65536.
#define MS_PER_S        1000.

#define FREQ_F0     24576.
#define FREQ_F1     4096.
#define FREQ_F2     256.

#define DELTAT_F0   2731    // (2048. / 24576. / 2.) * 65536. = 2730.667;
#define DELTAT_F1   16384   // (2048. / 4096.  / 2.) * 65536. = 16384;
#define DELTAT_F2   262144  // (2048. / 256.   / 2.) * 65536. = 262144;

#define OFFSET_2_BYTES  2

#define ONE_TICK_CORR_INTERVAL_0_MIN 0.5
#define ONE_TICK_CORR_INTERVAL_0_MAX 1.0
#define ONE_TICK_CORR_INTERVAL_1_MIN -1.0
#define ONE_TICK_CORR_INTERVAL_1_MAX -0.5
#define ONE_TICK_CORR   1
#define CORR_MULT       2

extern int fdSPW;

//*****************
// waveform buffers
extern volatile int wf_buffer_f0[ ];
extern volatile int wf_buffer_f1[ ];
extern volatile int wf_buffer_f2[ ];
extern volatile int wf_buffer_f3[ ];

extern waveform_picker_regs_0_1_18_t *waveform_picker_regs;
extern time_management_regs_t *time_management_regs;
extern Packet_TM_LFR_HK_t housekeeping_packet;
extern Packet_TM_LFR_PARAMETER_DUMP_t parameter_dump_packet;
extern struct param_local_str param_local;

extern unsigned short sequenceCounters_SCIENCE_NORMAL_BURST;
extern unsigned short sequenceCounters_SCIENCE_SBM1_SBM2;

extern rtems_id    Task_id[];         /* array of task ids */

extern unsigned char lfrCurrentMode;

//**********
// RTEMS_ISR
void reset_extractSWF( void );
rtems_isr waveforms_isr( rtems_vector_number vector );

//***********
// RTEMS_TASK
rtems_task wfrm_task( rtems_task_argument argument );
rtems_task cwf3_task( rtems_task_argument argument );
rtems_task cwf2_task( rtems_task_argument argument );
rtems_task cwf1_task( rtems_task_argument argument );
rtems_task swbd_task( rtems_task_argument argument );

//******************
// general functions
void WFP_init_rings( void );
void init_ring( ring_node ring[], unsigned char nbNodes, volatile int buffer[] , unsigned int bufferSize );
void WFP_reset_current_ring_nodes( void );
//
int init_header_continuous_cwf3_light_table( Header_TM_LFR_SCIENCE_CWF_t *headerCWF );
//
int send_waveform_CWF3_light(ring_node *ring_node_to_send, ring_node *ring_node_cwf3_light, rtems_id queue_id );
//
void compute_acquisition_time(unsigned int coarseTime, unsigned int fineTime,
                              unsigned int sid, unsigned char pa_lfr_pkt_nr, unsigned char *acquisitionTime );
void build_snapshot_from_ring(ring_node *ring_node_to_send, unsigned char frequencyChannel ,
                              unsigned long long acquisitionTimeF0_asLong, ring_node *ring_node_swf_extracted, int *swf_extracted);
double computeCorrection( unsigned char *timePtr );
void applyCorrection( double correction );
void snapshot_resynchronization( unsigned char *timePtr );
//
rtems_id get_pkts_queue_id( void );

//**************
// wfp registers
// RESET
void reset_wfp_burst_enable( void );
void reset_wfp_status( void );
void reset_wfp_buffer_addresses( void );
void reset_waveform_picker_regs( void );
// SET
void set_wfp_data_shaping(void);
void set_wfp_burst_enable_register( unsigned char mode );
void set_wfp_delta_snapshot( void );
void set_wfp_delta_f0_f0_2( void );
void set_wfp_delta_f1( void );
void set_wfp_delta_f2( void );

//*****************
// local parameters
void increment_seq_counter_source_id( unsigned char *packet_sequence_control, unsigned int sid );

#endif // WF_HANDLER_H_INCLUDED