/**
* @file    SchM_Mcu.c
*==================================================================================================
*   Project              : YTMicro AUTOSAR 4.4.0 MCAL
*   Platform             : ARM
*   Peripheral           : SchM_Mcu
*   Dependencies         : none
*
*   Autosar Version      : V4.4.0
*   Autosar Revision     : ASR_REL_4_4_REV_0000
*   SW Version           : V2.2.0
*
*   (c) Copyright 2020-2023 Yuntu Microelectronics co.,ltd.
*   All Rights Reserved.
==================================================================================================*/

/**
*   @file    SchM_Mcu.c
*
*   @addtogroup SCHM_MCU_MODULE
*   @{
*/

#ifdef __cplusplus
extern "C"
{
#endif

/*==================================================================================================
                                              INCLUDE FILES                                          
==================================================================================================*/
#include "Std_Types.h"
#include "OsIf.h"
#include "SchM_Mcu.h"
#include "Mcu_Cfg.h"
/*==================================================================================================
                                      SOURCE FILE VERSION INFORMATION                                
==================================================================================================*/
#define SCHM_MCU_VENDOR_ID_C             		(180)
#define SCHM_MCU_AR_REL_MAJOR_VER_C              (4)
#define SCHM_MCU_AR_REL_MINOR_VER_C              (4)
#define SCHM_MCU_AR_REL_REVISION_VER_C           (0)
#define SCHM_MCU_SW_MAJOR_VER_C                  (2)
#define SCHM_MCU_SW_MINOR_VER_C                  (2)
#define SCHM_MCU_SW_PATCH_VER_C                  (0)
/*==================================================================================================
                                            FILE VERSION CHECKS                                      
==================================================================================================*/
/* Check if source file and SCHM_MCU header file are of the same vendor */
#if (SCHM_MCU_VENDOR_ID_C != SCHM_MCU_VENDOR_ID)
#error "SchM_Mcu.c and SchM_Mcu.h have different vendor ids"
#endif

/* Check if source file and SCHM_MCU header file are of the same Autosar version */
#if (( SCHM_MCU_AR_REL_MAJOR_VER_C != SCHM_MCU_AR_REL_MAJOR_VER) || \
      ( SCHM_MCU_AR_REL_MINOR_VER_C != SCHM_MCU_AR_REL_MINOR_VER) || \
      ( SCHM_MCU_AR_REL_REVISION_VER_C != SCHM_MCU_AR_REL_REVISION_VER))
#error "AutoSar Version Numbers of SchM_Mcu.c and SchM_Mcu.h are different"
#endif

/* Check if source file and SCHM_MCU header file are of the same Software version */
#if (( SCHM_MCU_SW_MAJOR_VER_C != SCHM_MCU_SW_MAJOR_VER) || \
      ( SCHM_MCU_SW_MINOR_VER_C != SCHM_MCU_SW_MINOR_VER) || \
      ( SCHM_MCU_SW_PATCH_VER_C != SCHM_MCU_SW_PATCH_VER))
#error "Software Version Numbers of SchM_Mcu.c and SchM_Mcu.h are different"
#endif

/*==================================================================================================
                                                GLOBAL VARIABLES                                       
==================================================================================================*/
/*==================================================================================================
*                                       LOCAL CONSTANTS
==================================================================================================*/
#ifdef MCAL_PLATFORM_ARM
    #if (MCAL_PLATFORM_ARM == MCAL_ARM_AARCH64)
        #define ISR_STATE_MASK     ((uint32)0x000000C0UL)   /**< @brief DAIF bit I and F */
    #elif  (MCAL_PLATFORM_ARM == MCAL_ARM_RARCH)
        #define ISR_STATE_MASK     ((uint32)0x00000080UL)   /**< @brief CPSR bit I */
    #else
        #if ((defined MCAL_ENABLE_USER_MODE_SUPPORT)&&(!defined MCAL_PLATFORM_ARM_M0PLUS))
            #define ISR_STATE_MASK     ((uint32)0x000000FFUL)   /**< @brief BASEPRI[7:0] mask */
        #else
            #define ISR_STATE_MASK     ((uint32)0x00000001UL)   /**< @brief PRIMASK bit 0 */
        #endif
    #endif 
#endif
/*==================================================================================================
*                                       LOCAL MACROS
==================================================================================================*/
#ifdef MCAL_PLATFORM_ARM
    #if (MCAL_PLATFORM_ARM == MCAL_ARM_AARCH64)
        #define ISR_ON(msr)            (((uint32)(msr) & (uint32)(ISR_STATE_MASK)) != (uint32)(ISR_STATE_MASK))
    #elif  (MCAL_PLATFORM_ARM == MCAL_ARM_RARCH)
        #define ISR_ON(msr)            (((uint32)(msr) & (uint32)(ISR_STATE_MASK)) != (uint32)(ISR_STATE_MASK))
    #else
        #define ISR_ON(msr)            (((uint32)(msr) & (uint32)(ISR_STATE_MASK)) == (uint32)0)
    #endif    
#endif

#if(STD_ON == MCU_SCHM_SUPPORT) 
/*==================================================================================================
*                                       LOCAL VARIABLES
==================================================================================================*/
#define RTE_START_SEC_VAR_CLEARED_32_NO_CACHEABLE
#include "Rte_MemMap.h"

RTE_VAR static volatile uint32 SchM_Mcu_Msr_00;
RTE_VAR static volatile uint32 SchM_Mcu_ReentryGuard_00;

#define RTE_STOP_SEC_VAR_CLEARED_32_NO_CACHEABLE
#include "Rte_MemMap.h"
/*==================================================================================================
                                                LOCAL FUNCTIONS                                        
==================================================================================================*/
#define RTE_START_SEC_CODE
#include "Rte_MemMap.h"

/** 
* @brief   This function returns the MSR register value (32 bits). 
* @details This function returns the MSR register value (32 bits). 
*     
* @param[in]     void        No input parameters
* @return        uint32 msr  This function returns the MSR register value (32 bits). 
* 
* @pre  None
* @post None
* 
*/
RTE_FUNC uint32 SchM_Mcu_ReadMsr(void)
{
#if ((defined MCAL_ENABLE_USER_MODE_SUPPORT)&&(!defined MCAL_PLATFORM_ARM_M0PLUS))
    return __get_BASEPRI();
#else
    return __get_PRIMASK();
#endif
}

#define RTE_STOP_SEC_CODE
#include "Rte_MemMap.h"

/*==================================================================================================
                                                GLOBAL FUNCTIONS                                       
==================================================================================================*/

#define RTE_START_SEC_CODE
#include "Rte_MemMap.h"

RTE_FUNC void SchM_Enter_Mcu_MCU_EXCLUSIVE_AREA_00(void)
{
    if(0UL == SchM_Mcu_ReentryGuard_00)
    {
#if (defined MCAL_ENABLE_USER_MODE_SUPPORT)
        SchM_Mcu_Msr_00 = OsIf_Trusted_Call_Return(SchM_Mcu_ReadMsr);
#else
        SchM_Mcu_Msr_00 = SchM_Mcu_ReadMsr();  /*read MSR (to store interrupts state)*/
#endif /* MCAL_ENABLE_USER_MODE_SUPPORT */
        if (TRUE == ISR_ON(SchM_Mcu_Msr_00)) /*if MSR[EE] = 0, skip calling Suspend/Resume AllInterrupts*/
        {
            OsIf_SuspendAllInterrupts();
        }
    }
    SchM_Mcu_ReentryGuard_00++;
}

RTE_FUNC void SchM_Exit_Mcu_MCU_EXCLUSIVE_AREA_00(void)
{
    SchM_Mcu_ReentryGuard_00--;
    if ((TRUE == ISR_ON(SchM_Mcu_Msr_00))&&(0UL == SchM_Mcu_ReentryGuard_00))         /*if interrupts were enabled*/
    {
        OsIf_ResumeAllInterrupts();
    }
}

#else

#define RTE_START_SEC_CODE
#include "Rte_MemMap.h"

/* If SchM is not used, define empty functions */
RTE_FUNC void SchM_Enter_Mcu_MCU_EXCLUSIVE_AREA_00(void) {}
RTE_FUNC void SchM_Exit_Mcu_MCU_EXCLUSIVE_AREA_00(void)  {}

#endif /* STD_ON == MCU_SCHM_SUPPORT */

#define RTE_STOP_SEC_CODE
#include "Rte_MemMap.h"

#ifdef __cplusplus
}
#endif

/** @} */

/* End of file SchM_Mcu.c */

