/******************************************************************************
 *
 * Copyright (C) 2022-2023 Maxim Integrated Products, Inc. (now owned by 
 * Analog Devices, Inc.),
 * Copyright (C) 2023-2024 Analog Devices, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 ******************************************************************************/

#include "tmr.h"
#include "tmr_revb.h"
#include "tmr_common.h"
#include "lpgcr_regs.h"
#include "stdbool.h"

int MXC_TMR_Init(mxc_tmr_regs_t *tmr, mxc_tmr_cfg_t *cfg, bool init_pins)
{
    int tmr_id = MXC_TMR_GET_IDX(tmr);
    uint8_t clockSource = MXC_TMR_CLK0;

    if (cfg == NULL) {
        return E_NULL_PTR;
    }

    MXC_ASSERT(tmr_id >= 0);

    switch (cfg->clock) {
    case MXC_TMR_ISO_CLK:
        if (tmr_id > 3) { // Timers 4-5 do not support this clock source
            return E_NOT_SUPPORTED;
        }

        clockSource = MXC_TMR_CLK1;
        MXC_SYS_ClockSourceEnable(MXC_SYS_CLOCK_ISO);
        MXC_TMR_RevB_SetClockSourceFreq((mxc_tmr_revb_regs_t *)tmr, ISO_FREQ);
        break;

    case MXC_TMR_IBRO_CLK:
        if (tmr_id > 3) { // Timers 4-5 do not support this clock source
            return E_NOT_SUPPORTED;
        }

        clockSource = MXC_TMR_CLK2;
        MXC_SYS_ClockSourceEnable(MXC_SYS_CLOCK_IBRO);
        MXC_TMR_RevB_SetClockSourceFreq((mxc_tmr_revb_regs_t *)tmr, IBRO_FREQ);
        break;

    case MXC_TMR_IBRO_DIV8_CLK:
        if (tmr_id != 5) { // Only timer 5 supports this clock source
            return E_NOT_SUPPORTED;
        }

        clockSource = MXC_TMR_CLK1;
        MXC_SYS_ClockSourceEnable(MXC_SYS_CLOCK_IBRO);
        MXC_TMR_RevB_SetClockSourceFreq((mxc_tmr_revb_regs_t *)tmr, (IBRO_FREQ / 8));
        break;

#if (TARGET_NUM != 32680)
    case MXC_TMR_ERTCO_CLK:
        if (tmr_id == 4) {
            clockSource = MXC_TMR_CLK1;
        } else if (tmr_id < 4) {
            clockSource = MXC_TMR_CLK3;
        } else { // Timers 5 do not support this clock source
            return E_NOT_SUPPORTED;
        }

        MXC_SYS_ClockSourceEnable(MXC_SYS_CLOCK_ERTCO);
        MXC_TMR_RevB_SetClockSourceFreq((mxc_tmr_revb_regs_t *)tmr, ERTCO_FREQ);
        break;
#endif

    case MXC_TMR_INRO_CLK:
        if (tmr_id < 4) { // Timers 0-3 do not support this clock source
            return E_NOT_SUPPORTED;
        }

        clockSource = MXC_TMR_CLK2;
        MXC_SYS_ClockSourceEnable(MXC_SYS_CLOCK_INRO);
        MXC_TMR_RevB_SetClockSourceFreq((mxc_tmr_revb_regs_t *)tmr, INRO_FREQ);
        break;

    default:
        MXC_TMR_RevB_SetClockSourceFreq((mxc_tmr_revb_regs_t *)tmr, PeripheralClock);
        break;
    }

#ifndef MSDK_NO_GPIO_CLK_INIT
    //enable peripheral clock and configure gpio pins
    switch (tmr_id) {
    case 0:
        MXC_SYS_Reset_Periph(MXC_SYS_RESET0_TMR0);
        MXC_SYS_ClockEnable(MXC_SYS_PERIPH_CLOCK_TMR0);

        if (init_pins) {
            if (cfg->bitMode != MXC_TMR_BIT_MODE_16B) {
                MXC_GPIO_Config(&gpio_cfg_tmr0);
            } else {
                MXC_GPIO_Config(&gpio_cfg_tmr0b);
            }
        }

        break;

    case 1:
        MXC_SYS_Reset_Periph(MXC_SYS_RESET0_TMR1);
        MXC_SYS_ClockEnable(MXC_SYS_PERIPH_CLOCK_TMR1);

        if (init_pins) {
            if (cfg->bitMode != MXC_TMR_BIT_MODE_16B) {
                MXC_GPIO_Config(&gpio_cfg_tmr1);
            } else {
                MXC_GPIO_Config(&gpio_cfg_tmr1b);
            }
        }

        break;

    case 2:
        MXC_SYS_Reset_Periph(MXC_SYS_RESET0_TMR2);
        MXC_SYS_ClockEnable(MXC_SYS_PERIPH_CLOCK_TMR2);

        if (init_pins) {
            if (cfg->bitMode != MXC_TMR_BIT_MODE_16B) {
                MXC_GPIO_Config(&gpio_cfg_tmr2);
            } else {
                MXC_GPIO_Config(&gpio_cfg_tmr2b);
            }
        }

        break;

    case 3:
        MXC_SYS_Reset_Periph(MXC_SYS_RESET0_TMR3);
        MXC_SYS_ClockEnable(MXC_SYS_PERIPH_CLOCK_TMR3);

        if (init_pins) {
            if (cfg->bitMode != MXC_TMR_BIT_MODE_16B) {
                MXC_GPIO_Config(&gpio_cfg_tmr3);
            } else {
                MXC_GPIO_Config(&gpio_cfg_tmr3b);
            }
        }

        break;

    case 4:
        MXC_SYS_Reset_Periph(MXC_SYS_RESET_TMR4);
        MXC_SYS_ClockEnable(MXC_SYS_PERIPH_CLOCK_TMR4);
        break;

    case 5:
        MXC_SYS_Reset_Periph(MXC_SYS_RESET_TMR5);
        MXC_SYS_ClockEnable(MXC_SYS_PERIPH_CLOCK_TMR5);
        break;
    }
#else
    (void)init_pins;
#endif

    return MXC_TMR_RevB_Init((mxc_tmr_revb_regs_t *)tmr, cfg, clockSource);
}

void MXC_TMR_Shutdown(mxc_tmr_regs_t *tmr)
{
    MXC_ASSERT(MXC_TMR_GET_IDX(tmr) >= 0);

    MXC_TMR_RevB_Shutdown((mxc_tmr_revb_regs_t *)tmr);

    // System settigns
    //diasble peripheral clock
    if (tmr == MXC_TMR0) {
        MXC_SYS_ClockDisable(MXC_SYS_PERIPH_CLOCK_TMR0);
    }

    if (tmr == MXC_TMR1) {
        MXC_SYS_ClockDisable(MXC_SYS_PERIPH_CLOCK_TMR1);
    }

    if (tmr == MXC_TMR2) {
        MXC_SYS_ClockDisable(MXC_SYS_PERIPH_CLOCK_TMR2);
    }

    if (tmr == MXC_TMR3) {
        MXC_SYS_ClockDisable(MXC_SYS_PERIPH_CLOCK_TMR3);
    }

    if (tmr == MXC_TMR4) {
        MXC_SYS_ClockDisable(MXC_SYS_PERIPH_CLOCK_TMR4);
    }

    if (tmr == MXC_TMR5) {
        MXC_SYS_ClockDisable(MXC_SYS_PERIPH_CLOCK_TMR5);
    }
}

void MXC_TMR_Start(mxc_tmr_regs_t *tmr)
{
    MXC_TMR_RevB_Start((mxc_tmr_revb_regs_t *)tmr);
}

void MXC_TMR_Stop(mxc_tmr_regs_t *tmr)
{
    MXC_TMR_RevB_Stop((mxc_tmr_revb_regs_t *)tmr);
}

int MXC_TMR_SetPWM(mxc_tmr_regs_t *tmr, uint32_t pwm)
{
    return MXC_TMR_RevB_SetPWM((mxc_tmr_revb_regs_t *)tmr, pwm);
}

uint32_t MXC_TMR_GetCompare(mxc_tmr_regs_t *tmr)
{
    return MXC_TMR_RevB_GetCompare((mxc_tmr_revb_regs_t *)tmr);
}

uint32_t MXC_TMR_GetCapture(mxc_tmr_regs_t *tmr)
{
    return MXC_TMR_RevB_GetCapture((mxc_tmr_revb_regs_t *)tmr);
}

uint32_t MXC_TMR_GetPeriod(mxc_tmr_regs_t *tmr, mxc_tmr_clock_t clock, uint32_t prescalar,
                           uint32_t frequency)
{
    uint32_t clockFrequency = PeripheralClock;
    int tmr_id = MXC_TMR_GET_IDX(tmr);

    MXC_ASSERT(tmr_id >= 0);

    if (tmr_id > 3) {
        switch (clock) {
        case MXC_TMR_APB_CLK:
            clockFrequency = IBRO_FREQ;
            break;

#if (TARGET_NUM != 32680)
        case MXC_TMR_ERTCO_CLK:
            clockFrequency = ERTCO_FREQ;
            break;
#endif

        case MXC_TMR_INRO_CLK:
            clockFrequency = INRO_FREQ;
            break;

        case MXC_TMR_IBRO_DIV8_CLK:
            clockFrequency = IBRO_FREQ / 8;
            break;

        default:
            break;
        }
    } else {
        switch (clock) {
        case MXC_TMR_APB_CLK:
            clockFrequency = PeripheralClock;
            break;

        case MXC_TMR_ISO_CLK:
            clockFrequency = ISO_FREQ;
            break;

        case MXC_TMR_IBRO_CLK:
            clockFrequency = IBRO_FREQ;
            break;

#if (TARGET_NUM != 32680)
        case MXC_TMR_ERTCO_CLK:
            clockFrequency = ERTCO_FREQ;
            break;
#endif

        default:
            break;
        }
    }

    return MXC_TMR_RevB_GetPeriod((mxc_tmr_revb_regs_t *)tmr, clockFrequency, prescalar, frequency);
}

uint32_t MXC_TMR_GetCount(mxc_tmr_regs_t *tmr)
{
    return MXC_TMR_RevB_GetCount((mxc_tmr_revb_regs_t *)tmr);
}

void MXC_TMR_ClearFlags(mxc_tmr_regs_t *tmr)
{
    MXC_TMR_RevB_ClearFlags((mxc_tmr_revb_regs_t *)tmr);
}

uint32_t MXC_TMR_GetFlags(mxc_tmr_regs_t *tmr)
{
    return MXC_TMR_RevB_GetFlags((mxc_tmr_revb_regs_t *)tmr);
}

void MXC_TMR_EnableInt(mxc_tmr_regs_t *tmr)
{
    MXC_TMR_RevB_EnableInt((mxc_tmr_revb_regs_t *)tmr);
}

void MXC_TMR_DisableInt(mxc_tmr_regs_t *tmr)
{
    MXC_TMR_RevB_DisableInt((mxc_tmr_revb_regs_t *)tmr);
}

void MXC_TMR_EnableWakeup(mxc_tmr_regs_t *tmr, mxc_tmr_cfg_t *cfg)
{
    MXC_TMR_RevB_EnableWakeup((mxc_tmr_revb_regs_t *)tmr, cfg);
}

void MXC_TMR_DisableWakeup(mxc_tmr_regs_t *tmr, mxc_tmr_cfg_t *cfg)
{
    MXC_TMR_RevB_DisableWakeup((mxc_tmr_revb_regs_t *)tmr, cfg);
}

void MXC_TMR_SetCompare(mxc_tmr_regs_t *tmr, uint32_t cmp_cnt)
{
    MXC_TMR_RevB_SetCompare((mxc_tmr_revb_regs_t *)tmr, cmp_cnt);
}

void MXC_TMR_SetCount(mxc_tmr_regs_t *tmr, uint32_t cnt)
{
    MXC_TMR_RevB_SetCount((mxc_tmr_revb_regs_t *)tmr, cnt);
}

void MXC_TMR_Delay(mxc_tmr_regs_t *tmr, uint32_t us)
{
    MXC_TMR_Common_Delay(tmr, us);
}

void MXC_TMR_TO_Start(mxc_tmr_regs_t *tmr, uint32_t us)
{
    MXC_TMR_RevB_TO_Start((mxc_tmr_revb_regs_t *)tmr, us);
}

int MXC_TMR_TO_Check(mxc_tmr_regs_t *tmr)
{
    return MXC_TMR_Common_TO_Check(tmr);
}

void MXC_TMR_TO_Stop(mxc_tmr_regs_t *tmr)
{
    MXC_TMR_Common_TO_Stop(tmr);
}

void MXC_TMR_TO_Clear(mxc_tmr_regs_t *tmr)
{
    MXC_TMR_Common_TO_Clear(tmr);
}

unsigned int MXC_TMR_TO_Elapsed(mxc_tmr_regs_t *tmr)
{
    return MXC_TMR_Common_TO_Elapsed(tmr);
}

unsigned int MXC_TMR_TO_Remaining(mxc_tmr_regs_t *tmr)
{
    return MXC_TMR_Common_TO_Remaining(tmr);
}

void MXC_TMR_SW_Start(mxc_tmr_regs_t *tmr)
{
    MXC_TMR_Common_SW_Start(tmr);
}

unsigned int MXC_TMR_SW_Stop(mxc_tmr_regs_t *tmr)
{
    return MXC_TMR_Common_SW_Stop(tmr);
}

int MXC_TMR_GetTime(mxc_tmr_regs_t *tmr, uint32_t ticks, uint32_t *time, mxc_tmr_unit_t *units)
{
    return MXC_TMR_RevB_GetTime((mxc_tmr_revb_regs_t *)tmr, ticks, time, units);
}

int MXC_TMR_GetTicks(mxc_tmr_regs_t *tmr, uint32_t time, mxc_tmr_unit_t units, uint32_t *ticks)
{
    return MXC_TMR_RevB_GetTicks((mxc_tmr_revb_regs_t *)tmr, time, units, ticks);
}