/**************************************************************************
*
* Copyright (c) 2020-2022 Diality Inc. - All Rights Reserved.
*
* THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
* WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
*
* @file    ModeSolo.c
*
* @author  (last)      Darren Cox
* @date    (last)      02-Aug-2022
*
* @author  (original)  Sean
* @date    (original)  18-Mar-2020
*
***************************************************************************/

#include "CPLD.h"
#include "ModeSolo.h"
#include "OperationModes.h"
#include "SystemComm.h"

/**
 *  @addtogroup DGSoloStandbyMode
 *  @{
 */

// ********** private definitions **********

// ********** private data **********

static DG_SOLO_STANDBY_STATE_T soloState = DG_SOLO_STANDBY_STATE_START;       ///< Currently active solo standby state.

// ********** private function prototypes **********

static DG_SOLO_STANDBY_STATE_T handleIdleDGSoloStandbyState( void );

/*********************************************************************//**
 * @brief
 * The initSoloMode function initializes the solo standby mode module.
 * @details Inputs: none
 * @details Outputs: Solo standby mode module initialized
 * @return none
 *************************************************************************/
void initSoloMode( void )
{
    soloState = DG_SOLO_STANDBY_STATE_START;
}

/*********************************************************************//**
 * @brief
 * The transitionToSoloMode function prepares for transition to solo standby mode.
 * @details Inputs: none
 * @details Outputs: Re-initialized solo standby mode
 * @return initial state
 *************************************************************************/
U32 transitionToSoloMode( void )
{
    initSoloMode();

    setCPLDCleanLEDColor( CPLD_CLEAN_LED_OFF );

    return soloState;
}

/*********************************************************************//**
 * @brief
 * The execSoloMode function executes the solo standby mode state machine.
 * @details Inputs: none
 * @details Outputs: Solo standby mode state machine executed
 * @return current state.
 *************************************************************************/
U32 execSoloMode( void )
{
    // execute current solo standby state
    switch ( soloState )
    {
        case DG_SOLO_STANDBY_STATE_START:
            soloState = DG_SOLO_IDLE_STATE;
            break;

        case DG_SOLO_IDLE_STATE:
            soloState = handleIdleDGSoloStandbyState();
            break;

        default:
            SET_ALARM_WITH_2_U32_DATA( ALARM_ID_DG_SOFTWARE_FAULT, SW_FAULT_ID_SOLO_MODE_INVALID_EXEC_STATE, soloState )
            soloState = DG_SOLO_STANDBY_STATE_START;
            break;
    }

    return soloState;
}

/*********************************************************************//**
 * @brief
 * The handleIdleDGSoloStandbyState function handles the idle state of solo standby mode.
 * @details Inputs: none
 * @details Outputs: none
 * @return the next state of solo standby mode.
 *************************************************************************/
static DG_SOLO_STANDBY_STATE_T handleIdleDGSoloStandbyState( void )
{
    DG_SOLO_STANDBY_STATE_T result = DG_SOLO_IDLE_STATE;

    // if HD is on, transition to DG standby mode
    if ( TRUE == isHDCommunicating() )
    {
        requestNewOperationMode( DG_MODE_STAN );
    }

    return result;
}

/*********************************************************************//**
 * @brief
 * The getCurrentSoloState function returns the current state of solo standby mode.
 * @details Inputs: soloState
 * @details Outputs: none
 * @return the current state of solo standby mode.
 *************************************************************************/
DG_SOLO_STANDBY_STATE_T getCurrentSoloState( void )
{
    return soloState;
}

/**@}*/