/***********************************************************************************************************************
* DISCLAIMER
* This software is supplied by Renesas Electronics Corporation and is only intended for use with Renesas products.
* No other uses are authorized. This software is owned by Renesas Electronics Corporation and is protected under all
* applicable laws, including copyright laws. 
* THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING THIS SOFTWARE, WHETHER EXPRESS, IMPLIED
* OR STATUTORY, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NON-INFRINGEMENT.  ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED.TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY
* LAW, NEITHER RENESAS ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE FOR ANY DIRECT,
* INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR
* ITS AFFILIATES HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
* Renesas reserves the right, without notice, to make changes to this software and to discontinue the availability 
* of this software. By using this software, you agree to the additional terms and conditions found by accessing the 
* following link:
* http://www.renesas.com/disclaimer
*
* Copyright (C) 2012, 2021 Renesas Electronics Corporation. All rights reserved.
***********************************************************************************************************************/

/***********************************************************************************************************************
* File Name    : r_cg_timer_user.c
* Version      : CodeGenerator for RL78/F14 V2.03.07.02 [08 Nov 2021]
* Device(s)    : R5F10PPJ
* Tool-Chain   : CCRL
* Description  : This file implements device driver for TAU module.
* Creation Date: 2026-08-03
***********************************************************************************************************************/

/***********************************************************************************************************************
Includes
***********************************************************************************************************************/
#include "r_cg_macrodriver.h"
#include "r_cg_timer.h"
/* Start user code for include. Do not edit comment generated here */
/* End user code. Do not edit comment generated here */
#include "r_cg_userdefine.h"

/***********************************************************************************************************************
Pragma directive
***********************************************************************************************************************/
#pragma interrupt r_tau1_channel5_interrupt(vect=INTTM15)
/* Start user code for pragma. Do not edit comment generated here */
/* End user code. Do not edit comment generated here */

/***********************************************************************************************************************
Global variables and functions
***********************************************************************************************************************/
/* For TAU1_ch5 pulse measurement */
volatile uint32_t g_tau1_ch5_width = 0UL;
/* Start user code for global. Do not edit comment generated here */
#define TAU1_CH5_CAPTURE_QUEUE_SIZE  (16U)
#define TAU1_CH5_CAPTURE_QUEUE_MASK  (TAU1_CH5_CAPTURE_QUEUE_SIZE - 1U)

static volatile uint32_t g_tau1_ch5_low_ticks[TAU1_CH5_CAPTURE_QUEUE_SIZE];
static volatile uint8_t g_tau1_ch5_capture_head = 0U;
static volatile uint8_t g_tau1_ch5_capture_tail = 0U;
static volatile uint8_t g_tau1_ch5_capture_overflow = 0U;
/* End user code. Do not edit comment generated here */

/***********************************************************************************************************************
* Function Name: r_tau1_channel5_interrupt
* Description  : This function is INTTM15 interrupt service routine.
* Arguments    : None
* Return Value : None
***********************************************************************************************************************/
static void __near r_tau1_channel5_interrupt(void)
{
    if ((TSR15 & _0001_TAU_OVERFLOW_OCCURS) == 1U)    /* overflow occurs */
    {            
        g_tau1_ch5_width = (uint32_t)(TDR15 + 1U) + 0x10000U;
    }
    else
    {
        g_tau1_ch5_width = (uint32_t)(TDR15 + 1U);
    }

    /* Start user code. Do not edit comment generated here */
    /* A rising edge ends a LOW pulse.  Queue only LOW widths for the OWI decoder. */
    if ((P7 & 0x01U) != 0U)
    {
        uint8_t next = (uint8_t)((g_tau1_ch5_capture_head + 1U) & TAU1_CH5_CAPTURE_QUEUE_MASK);

        if (next != g_tau1_ch5_capture_tail)
        {
            g_tau1_ch5_low_ticks[g_tau1_ch5_capture_head] = g_tau1_ch5_width;
            g_tau1_ch5_capture_head = next;
        }
        else
        {
            g_tau1_ch5_capture_overflow = 1U;
        }
    }
    /* End user code. Do not edit comment generated here */
}

/* Start user code for adding. Do not edit comment generated here */
void R_TAU1_Channel5_CaptureReset(void)
{
    DI();
    g_tau1_ch5_capture_head = 0U;
    g_tau1_ch5_capture_tail = 0U;
    g_tau1_ch5_capture_overflow = 0U;
    g_tau1_ch5_width = 0UL;
    EI();
}

uint8_t R_TAU1_Channel5_GetLowWidthTicks(uint32_t * const ticks)
{
    uint8_t available = 0U;

    if (ticks == 0)
    {
        return 0U;
    }

    DI();
    if (g_tau1_ch5_capture_tail != g_tau1_ch5_capture_head)
    {
        *ticks = g_tau1_ch5_low_ticks[g_tau1_ch5_capture_tail];
        g_tau1_ch5_capture_tail =
            (uint8_t)((g_tau1_ch5_capture_tail + 1U) & TAU1_CH5_CAPTURE_QUEUE_MASK);
        available = 1U;
    }
    EI();

    return available;
}

uint8_t R_TAU1_Channel5_CaptureOverflowed(void)
{
    return g_tau1_ch5_capture_overflow;
}
/* End user code. Do not edit comment generated here */