/*----------------------------------------------------------------------------
 * Copyright (c) Fenda Technologies Co., Ltd. 2020. All rights reserved.
 *
 * Description: watchdog_api.c 
 *
 * Author: saimen
 *
 * Create: 2022-7-16
 *--------------------------------------------------------------------------*/
 //lib
#include <stdlib.h>
#include <string.h>
//os
#include "FreeRTOS.h"
#include "task.h"
//sdk
//#include "apollo4b.h"//uninclude am_hal_lib
#include "am_mcu_apollo.h"
//drv
#include "sys_config.h"
//#include "sys_restart.h"
#include "watchdog_api.h"
#include "rtc_api.h"
//user


#define ENABLE_STATIC_PRINT false
extern uint32_t am_util_stdio_printf(const char *pcFmt, ...);
#define static_print_remind(...)     am_util_stdio_printf(__VA_ARGS__)
#if ENABLE_STATIC_PRINT
#define static_print_info(...)    am_util_stdio_printf(__VA_ARGS__)
#else
#define static_print_info(...)
#endif

#define MCU_WDT_RST_TIMES       (15)    // Note: max value, 16*16 >= 256;
#define MCU_WDT_ISR_TIMES       (MCU_WDT_RST_TIMES - 2) // seconds

static uint32_t g_ui32ResetStatus = 0;

am_hal_wdt_config_t g_watchdog_config =
{
    // Set the clock for 16HZ
    .eClockSource = AM_HAL_WDT_16HZ,

    // Enable the interrupt, and set it for 3/4 of a second.
    .bInterruptEnable = true,
    .ui32InterruptValue = (16 * MCU_WDT_ISR_TIMES),

    // Enable the reset, and set it for 15 seconds.
    .bResetEnable = true,
    .ui32ResetValue = (16 * MCU_WDT_RST_TIMES),

    // No DSP.
    .bAlertOnDSPReset = false,
};


void am_watchdog_isr(void)
{
     uint32_t ui32Status;
#if defined(AM_PART_APOLLO4)
//    am_hal_wdt_interrupt_status_get();
//    am_hal_wdt_interrupt_clear();
    am_hal_wdt_interrupt_status_get(AM_HAL_WDT_MCU, &ui32Status, true);
    am_hal_wdt_interrupt_clear(AM_HAL_WDT_MCU, ui32Status);
#else
    am_hal_wdt_int_clear();
#endif

    static_print_remind("am_watchdog_isr... \r\n");
    /*Note:
    不使用正常重启流程保存数据,是因为正常保存流程涉及到文件操作,文件操作需要使用动态内存申请,动态内存申请本身就会引发
    堵塞导致看门狗超时,最终导致保存失败;
    */
    #include "log_api.h"
    uint32_t timestamp = rtc_api_get_utc_timestamp();
    log_api_record_error(timestamp, EVT_DRIVE_ERROR, INFO1_MCU, INFO2_MCU_WDT_ISR, 0, NULL);   //硬狗超时
    #include "sys_restart.h"
    //sys_anomaly_data_save();
    extern uint32_t HardFault_Handler(void);
    HardFault_Handler();
    static_print_remind("wdt data recover end\r\n");

    while(1); //等待看门狗重启设备
}

void watchdog_api_init(void)
{
#if 0
#if defined(AM_PART_APOLLO4)
    am_hal_wdt_start(AM_HAL_WDT_MCU, true);
#else
//    am_hal_clkgen_control(AM_HAL_CLKGEN_CONTROL_LFRC_START, 0);
    am_hal_wdt_init(&g_sWatchdogConfig);
    am_hal_wdt_start();
#endif

#if AM_CMSIS_REGS
    NVIC_EnableIRQ(WDT_IRQn);
#else
    am_hal_interrupt_enable(AM_HAL_INTERRUPT_WATCHDOG);
#endif

#else
    am_hal_reset_status_t sStatus;

    am_hal_reset_status_get(&sStatus);
    g_ui32ResetStatus = sStatus.eStatus;

    static_print_remind("Reset Status Register = 0x%x\r\n",
                         g_ui32ResetStatus);

    am_hal_clkgen_control(AM_HAL_CLKGEN_CONTROL_LFRC_START, 0);

    //
    // Configure the watchdog.
    //
    am_hal_wdt_config(AM_HAL_WDT_MCU, &g_watchdog_config);
    am_hal_wdt_interrupt_enable(AM_HAL_WDT_MCU, AM_HAL_WDT_INTERRUPT_MCU);

    //
    // Enable the interrupt for the watchdog in the NVIC.
    //
    NVIC_SetPriority(WDT_IRQn, AM_IRQ_PRIORITY_DEFAULT-2);
    NVIC_EnableIRQ(WDT_IRQn);
    am_hal_interrupt_master_enable();

    //
    // Enable the watchdog.
    //
    am_hal_wdt_start(AM_HAL_WDT_MCU, false);

#endif
}

uint8_t watchdog_api_get_status(void)
{
#if AM_CMSIS_REGS
    return WDT->CFG | WDT_CFG_WDTEN_Msk;
#else
    return (AM_REG(WDT, CFG) & AM_REG_WDT_CFG_WDTEN(AM_REG_WDT_CFG_WDTEN_M));
#endif
}

uint32_t watchdog_api_get_rst_ms(void)
{
    return  MCU_WDT_ISR_TIMES*1000;
}

void watchdog_api_feed(void)
{
    am_hal_wdt_restart(AM_HAL_WDT_MCU);
}