/*
 * Copyright (c) 2018, Linz Center of Mechatronics GmbH (LCM), web: www.lcm.at
 * All rights reserved.
 */
/*
 * This file is licensed according to the BSD 3-clause license as follows:
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the "Linz Center of Mechatronics GmbH" and "LCM" nor
 *       the names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL "Linz Center of Mechatronics GmbH" BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
/*
 * This file is part of X2C. web: x2c.lcm.at
 * $LastChangedRevision: 4111 $
 * $LastChangedDate:: 2026-03-09 14:42:15 +0100#$
 */
/* USERCODE-BEGIN:Description                                                                                         */
/* Description: Calculation of AC and DC component.                           */
/* USERCODE-END:Description                                                                                           */
#include <stddef.h>
#include "ACDC_FiP16.h"

/* all used update functions to ram for c2000                                                                         */
#if defined(__ALL_UPDATE_FUNC_2_RAM_C2000__)
    #pragma CODE_SECTION(ACDC_FiP16_Update, "ramfuncs")
#endif

/* USERCODE-BEGIN:PreProcessor                                                                                        */
/* Inputs */
#define IN              (*block->In)
#define PHI             (*block->phi)

/* Outputs */
#define OUT_AC          (block->AC)
#define OUT_DC          (block->DC)

/* Variables */
#define PHI_OLD         (block->phi_old)
#define CNT             (block->cnt)
#define SUM             (block->sum)

/* Constants */
#define MORE_THAN_PI    ((int32)0xC000)     /* 3/2 * pi */

/* USERCODE-END:PreProcessor                                                                                          */

/**********************************************************************************************************************/
/** Update                                                                                                           **/
/**********************************************************************************************************************/
void ACDC_FiP16_Update(ACDC_FIP16 *block)
{
/* USERCODE-BEGIN:UpdateFnc                                                                                           */
    int32 temp;

    /* check for counter limit */
    if (CNT != (uint16)UINT16_MAX)
    {
        /* counter value hasn't reached its maximum value:
         * it's save to compute sum and to increase counter
         */
        SUM += (int32)IN;
        CNT++;
    }
    else
    {
        /* counter value has reached its maximum value:
         * reset sum to prevent false output on next jump of phi
         */
        SUM = 0;
    }

    /* check for start of new period (jump from -pi to +pi or vice versa) */
    if ((ABS_I32((int32)PHI - (int32)PHI_OLD)) > MORE_THAN_PI)
    {
        /* calculate DC part */
        temp = SUM / (int32)CNT;

        /* Data width limitation */
        if (temp > INT16_MAX)
        {
            temp = INT16_MAX;
        }
        else
        {
            if (temp < -INT16_MAX)
            {
                temp = -INT16_MAX;
            }
        }

        OUT_DC = (int16)temp;

        /* reset counter and sum */
        SUM = 0;
        CNT = 0u;
    }

    /* calculate AC part */
    temp = (int32)IN - (int32)OUT_DC;

    /* Data width limitation */
    if (temp > INT16_MAX)
    {
        temp = INT16_MAX;
    }
    else
    {
        if (temp < -INT16_MAX)
        {
            temp = -INT16_MAX;
        }
    }

    OUT_AC = (int16)temp;

    /* save angle value for next cycle */
    PHI_OLD = PHI;


/* USERCODE-END:UpdateFnc                                                                                             */

}

/**********************************************************************************************************************/
/** Initialization                                                                                                   **/
/**********************************************************************************************************************/
void ACDC_FiP16_Init(ACDC_FIP16 *block)
{
    block->identifier = ACDC_FIP16_ID;
    block->AC = 0;
    block->DC = 0;
/* USERCODE-BEGIN:InitFnc                                                                                             */
     PHI_OLD = 0;
     CNT = 0u;
     SUM = 0;

/* USERCODE-END:InitFnc                                                                                               */
}

/**********************************************************************************************************************/
/** No Load function                                                                                                 **/
/**********************************************************************************************************************/

/**********************************************************************************************************************/
/** No Save function                                                                                                 **/
/**********************************************************************************************************************/

/**********************************************************************************************************************/
/** Get block element address                                                                                        **/
/**********************************************************************************************************************/
#if !defined(ACDC_FIP16_ISLINKED)
void* ACDC_FiP16_GetAddress(ACDC_FIP16* block, uint16 elementId)
{
    void* addr;
    switch (elementId)
    {
        case 1:
            addr = block->In;
            break;
        case 2:
            addr = block->phi;
            break;
        case 3:
            addr = &block->AC;
            break;
        case 4:
            addr = &block->DC;
            break;
        default:
            addr = NULL;
            break;
    }
    return (addr);
}
#endif
