/**
*   @copyright       © 2026 Microchip Technology Inc.
    Microchip Technology Inc. and its subsidiaries. You may use this
    software and any derivatives exclusively with Microchip products.

    THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES, WHETHER
    EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE, INCLUDING ANY IMPLIED
    WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY, AND FITNESS FOR A
    PARTICULAR PURPOSE, OR ITS INTERACTION WITH MICROCHIP PRODUCTS, COMBINATION
    WITH ANY OTHER PRODUCTS, OR USE IN ANY APPLICATION.

    IN NO EVENT WILL MICROCHIP BE LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE,
    INCIDENTAL OR CONSEQUENTIAL LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND
    WHATSOEVER RELATED TO THE SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS
    BEEN ADVISED OF THE POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE
    FULLEST EXTENT ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN
    ANY WAY RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
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    MICROCHIP PROVIDES THIS SOFTWARE CONDITIONALLY UPON YOUR ACCEPTANCE OF THESE
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*
*************************************************************************/

/**
 *  @file       diag_delay.c
 *  @version    1.0
 *  @brief      This file has the delay routines.
 *              
 *************************************************************************/

#include "diag_delay.h"

static uint32_t diagSysClockValue;

static uint32_t oneusDelayInCounts;

static uint32_t onemsDelayInCounts;

/* LDRA_EXCLUDE 61 D <justification start>Function intended to be used based based on the dignostic module requirements. Violation Ignored.<justification end> */
/* LDRA_EXCLUDE 76 D <justification start>Function intended to be used based based on the dignostic module requirements. Violation Ignored.<justification end> */
void DIAG_SetClockFreq(uint32_t clockfreq)
{
    diagSysClockValue = clockfreq;
    oneusDelayInCounts = diagSysClockValue/DIAG_DELAY_MICROSECOND_DIVIDER;
    onemsDelayInCounts = diagSysClockValue/DIAG_DELAY_MILLISECOND_DIVIDER;
}

/* LDRA_EXCLUDE 61 D <justification start>Function intended to be used based based on the dignostic module requirements. Violation Ignored.<justification end> */
/* LDRA_EXCLUDE 76 D <justification start>Function intended to be used based based on the dignostic module requirements. Violation Ignored.<justification end> */
uint32_t DIAG_GetClockFreq(void)
{
    return (diagSysClockValue);
}

/* LDRA_EXCLUDE 65 D <justification start>Function intended to modify hardware registers. Violation Ignored.<justification end> */
/* LDRA_EXCLUDE 61 D <justification start>Function intended to be used based based on the dignostic module requirements. Violation Ignored.<justification end> */
/* LDRA_EXCLUDE 76 D <justification start>Function intended to be used based based on the dignostic module requirements. Violation Ignored.<justification end> */
void DIAG_delayMs(uint32_t msdelay)
{
    uint32_t msInstrCount;
/* LDRA_EXCLUDE 105 D <justification start>Variable passed to assembly instruction for delay computation. Violation Ignored.<justification end> */    
    msInstrCount = onemsDelayInCounts * msdelay;
    DIAG_delayInstrCount(msInstrCount);
}

/* LDRA_EXCLUDE 65 D <justification start>Function intended to modify hardware registers. Violation Ignored.<justification end> */
/* LDRA_EXCLUDE 61 D <justification start>Function intended to be used based based on the dignostic module requirements. Violation Ignored.<justification end> */
/* LDRA_EXCLUDE 76 D <justification start>Function intended to be used based based on the dignostic module requirements. Violation Ignored.<justification end> */
void DIAG_delayUs(uint32_t usdelay)
{
    uint32_t usInstrCount;
/* LDRA_EXCLUDE 105 D <justification start>Variable passed to assembly instruction for delay computation. Violation Ignored.<justification end> */    
    usInstrCount = oneusDelayInCounts * usdelay;
    DIAG_delayInstrCount(usInstrCount);
}

/* LDRA_EXCLUDE 65 D <justification start>Function intended to modify hardware registers. Violation Ignored.<justification end> */
/* LDRA_EXCLUDE 61 D <justification start>Function intended to be used based based on the dignostic module requirements. Violation Ignored.<justification end> */
/* LDRA_EXCLUDE 76 D <justification start>Function intended to be used based based on the dignostic module requirements. Violation Ignored.<justification end> */
void DIAG_delayInstrCount(uint32_t count)
{
    asm volatile (
        "repeat %0 \n"  
        "nop"           
        :               
        : "r" (count)  
    );
}
