/**************************************************************************
 *
 *  Copyright (c) 2019-2020 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 SafetyShutdown.c
 *
 *  @date 20-Sep-2019
 *  @author S. Nash
 *
 *  @brief Controller for the safety shutdown signal.
 *
 **************************************************************************/

#include "mibspi.h"

#include "SafetyShutdown.h"

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

// pin I/O macros
#define SAFETY_SPI1_PORT_MASK       0x00000010  // (CS[4] - re-purposed as output GPIO)
#define SET_SAFETY_SHUTDOWN()       {mibspiREG1->PC3 |= SAFETY_SPI1_PORT_MASK;}
#define CLR_SAFETY_SHUTDOWN()       {mibspiREG1->PC3 &= ~SAFETY_SPI1_PORT_MASK;}

/*************************************************************************
 * @brief initSafetyShutdown
 * The initSafetyShutdown function initializes the Buttons module.
 * @details
 * Inputs : none
 * Outputs : Safety Shutdown module signal output set to initial state.
 * @param none
 * @return none
 *************************************************************************/
void initSafetyShutdown( void )
{
    CLR_SAFETY_SHUTDOWN();
}

/*************************************************************************
 * @brief activateSafetyShutdown
 * The activateSafetyShutdown function activates the safety shutdown signal.
 * @details
 * Inputs : none
 * Outputs : Safety Shutdown signal output set to active state.
 * @param none
 * @return none
 *************************************************************************/
void activateSafetyShutdown( void )
{
    SET_SAFETY_SHUTDOWN();
}