/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file    sys_app.c
  * @author  MCD Application Team
  * @brief   Initializes HW and SW system entities (not related to the radio)
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2021 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */

/* Includes ------------------------------------------------------------------*/
#include <stdio.h>
#include "platform.h"
#include "sys_app.h"
#include "adc_if.h"
#include "stm32_seq.h"
#include "stm32_systime.h"
#include "stm32_lpm.h"
#include "timer_if.h"
#include "utilities_def.h"
#include "sys_debug.h"
#include "sys_sensors.h"

/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

/* External variables ---------------------------------------------------------*/
/* USER CODE BEGIN EV */

/* USER CODE END EV */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
#define MAX_TS_SIZE (int) 16

/**
  * Defines the maximum battery level
  */
#define LORAWAN_MAX_BAT   254

/* USER CODE BEGIN PD */

/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/
static uint8_t SYS_TimerInitialisedFlag = 0;

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
/**
  * @brief Returns sec and msec based on the systime in use
  * @param buff to update with timestamp
  * @param size of updated buffer
  */
static void TimestampNow(uint8_t *buff, uint16_t *size);

/**
  * @brief  it calls UTIL_ADV_TRACE_VSNPRINTF
  */
static void tiny_snprintf_like(char *buf, uint32_t maxsize, const char *strFormat, ...);

/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Exported functions ---------------------------------------------------------*/
void SystemApp_Init(void)
{
  /* USER CODE BEGIN SystemApp_Init_1 */

  /* USER CODE END SystemApp_Init_1 */

  /* Ensure that MSI is wake-up system clock */
  __HAL_RCC_WAKEUPSTOP_CLK_CONFIG(RCC_STOP_WAKEUPCLOCK_MSI);

  /*Initialize timer and RTC*/
  UTIL_TIMER_Init();
  SYS_TimerInitialisedFlag = 1;
  /* Initializes the SW probes pins and the monitor RF pins via Alternate Function */
  DBG_Init();

  /*Initialize the terminal */
  UTIL_ADV_TRACE_Init();
  UTIL_ADV_TRACE_RegisterTimeStampFunction(TimestampNow);

  /* #warning "should be removed when proper obl is done" */
  __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_OPTVERR);

  /*Set verbose LEVEL*/
  UTIL_ADV_TRACE_SetVerboseLevel(VERBOSE_LEVEL);

  /*Initialize the temperature and Battery measurement services */
  SYS_InitMeasurement();

  /*Initialize the Sensors */
  EnvSensors_Init();
  // LED1 Flash 3 times for normal power on
  LED1_TOGGLE;
  HAL_Delay(500);
  LED1_TOGGLE;
  HAL_Delay(500);
  LED1_TOGGLE;
  HAL_Delay(500);
  LED1_TOGGLE;
  HAL_Delay(500);
  LED1_TOGGLE;
  HAL_Delay(500);
  LED1_TOGGLE;
  /*Init low power manager*/
  UTIL_LPM_Init();
  /* Disable Stand-by mode */
  UTIL_LPM_SetOffMode((1 << CFG_LPM_APPLI_Id), UTIL_LPM_DISABLE);

#if defined (LOW_POWER_DISABLE) && (LOW_POWER_DISABLE == 1)
  /* Disable Stop Mode */
  UTIL_LPM_SetStopMode((1 << CFG_LPM_APPLI_Id), UTIL_LPM_DISABLE);
#elif !defined (LOW_POWER_DISABLE)
#error LOW_POWER_DISABLE not defined
#endif /* LOW_POWER_DISABLE */

  /* USER CODE BEGIN SystemApp_Init_2 */

  /* USER CODE END SystemApp_Init_2 */
}

/**
  * @brief redefines __weak function in stm32_seq.c such to enter low power
  */
void UTIL_SEQ_Idle(void)
{
  /* USER CODE BEGIN UTIL_SEQ_Idle_1 */

  /* USER CODE END UTIL_SEQ_Idle_1 */
  UTIL_LPM_EnterLowPower();
  /* USER CODE BEGIN UTIL_SEQ_Idle_2 */

  /* USER CODE END UTIL_SEQ_Idle_2 */
}

uint8_t GetBatteryLevel(void)
{
  uint8_t batteryLevel = 0;
  uint16_t batteryLevelmV;

  /* USER CODE BEGIN GetBatteryLevel_0 */

  /* USER CODE END GetBatteryLevel_0 */

  batteryLevelmV = (uint16_t) SYS_GetBatteryLevel();

  /* Convert battery level from mV to linear scale: 1 (very low) to 254 (fully charged) */
  if (batteryLevelmV > VDD_BAT)
  {
    batteryLevel = LORAWAN_MAX_BAT;
  }
  else if (batteryLevelmV < VDD_MIN)
  {
    batteryLevel = 0;
  }
  else
  {
    batteryLevel = (((uint32_t)(batteryLevelmV - VDD_MIN) * LORAWAN_MAX_BAT) / (VDD_BAT - VDD_MIN));
  }

  /* USER CODE BEGIN GetBatteryLevel_2 */

  /* USER CODE END GetBatteryLevel_2 */

  return batteryLevel;  /* 1 (very low) to 254 (fully charged) */
}

int16_t GetTemperatureLevel(void)
{
  int16_t temperatureLevel = 0;

  sensor_t sensor_data;

  EnvSensors_Read(&sensor_data);
  temperatureLevel = (int16_t)(sensor_data.temperature);
  /* USER CODE BEGIN GetTemperatureLevel */

  /* USER CODE END GetTemperatureLevel */
  return temperatureLevel;
}

void GetUniqueId(uint8_t *id)
{
  /* USER CODE BEGIN GetUniqueId_1 */

  /* USER CODE END GetUniqueId_1 */
  uint32_t val = 0;
  val = LL_FLASH_GetUDN();
  if (val == 0xFFFFFFFF)  /* Normally this should not happen */
  {
    uint32_t ID_1_3_val = HAL_GetUIDw0() + HAL_GetUIDw2();
    uint32_t ID_2_val = HAL_GetUIDw1();

    id[7] = (ID_1_3_val) >> 24;
    id[6] = (ID_1_3_val) >> 16;
    id[5] = (ID_1_3_val) >> 8;
    id[4] = (ID_1_3_val);
    id[3] = (ID_2_val) >> 24;
    id[2] = (ID_2_val) >> 16;
    id[1] = (ID_2_val) >> 8;
    id[0] = (ID_2_val);
  }
  else  /* Typical use case */
  {
    id[7] = val & 0xFF;
    id[6] = (val >> 8) & 0xFF;
    id[5] = (val >> 16) & 0xFF;
    id[4] = (val >> 24) & 0xFF;
    val = LL_FLASH_GetDeviceID();
    id[3] = val & 0xFF;
    val = LL_FLASH_GetSTCompanyID();
    id[2] = val & 0xFF;
    id[1] = (val >> 8) & 0xFF;
    id[0] = (val >> 16) & 0xFF;
  }

  /* USER CODE BEGIN GetUniqueId_2 */

  /* USER CODE END GetUniqueId_2 */
}

void GetDevAddr(uint32_t *devAddr)
{
  /* USER CODE BEGIN GetDevAddr_1 */

  /* USER CODE END GetDevAddr_1 */

  *devAddr = LL_FLASH_GetUDN();
  if (*devAddr == 0xFFFFFFFF)
  {
    *devAddr = ((HAL_GetUIDw0()) ^ (HAL_GetUIDw1()) ^ (HAL_GetUIDw2()));
  }

  /* USER CODE BEGIN GetDevAddr_2 */

  /* USER CODE END GetDevAddr_2 */
}

/* USER CODE BEGIN EF */

/* USER CODE END EF */

/* Private functions ---------------------------------------------------------*/

static void TimestampNow(uint8_t *buff, uint16_t *size)
{
  /* USER CODE BEGIN TimestampNow_1 */

  /* USER CODE END TimestampNow_1 */
  SysTime_t curtime = SysTimeGet();
  tiny_snprintf_like((char *)buff, MAX_TS_SIZE, "%ds%03d:", curtime.Seconds, curtime.SubSeconds);
  *size = strlen((char *)buff);
  /* USER CODE BEGIN TimestampNow_2 */

  /* USER CODE END TimestampNow_2 */
}

/* Disable StopMode when traces need to be printed */
void UTIL_ADV_TRACE_PreSendHook(void)
{
  /* USER CODE BEGIN UTIL_ADV_TRACE_PreSendHook_1 */

  /* USER CODE END UTIL_ADV_TRACE_PreSendHook_1 */
  UTIL_LPM_SetStopMode((1 << CFG_LPM_UART_TX_Id), UTIL_LPM_DISABLE);
  /* USER CODE BEGIN UTIL_ADV_TRACE_PreSendHook_2 */

  /* USER CODE END UTIL_ADV_TRACE_PreSendHook_2 */
}
/* Re-enable StopMode when traces have been printed */
void UTIL_ADV_TRACE_PostSendHook(void)
{
  /* USER CODE BEGIN UTIL_LPM_SetStopMode_1 */

  /* USER CODE END UTIL_LPM_SetStopMode_1 */
  UTIL_LPM_SetStopMode((1 << CFG_LPM_UART_TX_Id), UTIL_LPM_ENABLE);
  /* USER CODE BEGIN UTIL_LPM_SetStopMode_2 */

  /* USER CODE END UTIL_LPM_SetStopMode_2 */
}

static void tiny_snprintf_like(char *buf, uint32_t maxsize, const char *strFormat, ...)
{
  /* USER CODE BEGIN tiny_snprintf_like_1 */

  /* USER CODE END tiny_snprintf_like_1 */
  va_list vaArgs;
  va_start(vaArgs, strFormat);
  UTIL_ADV_TRACE_VSNPRINTF(buf, maxsize, strFormat, vaArgs);
  va_end(vaArgs);
  /* USER CODE BEGIN tiny_snprintf_like_2 */

  /* USER CODE END tiny_snprintf_like_2 */
}

/* USER CODE BEGIN PrFD */

/* USER CODE END PrFD */

/* HAL overload functions ---------------------------------------------------------*/

/**
  * @note This function overwrites the __weak one from HAL
  */
HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority)
{
  /*Don't enable SysTick if TIMER_IF is based on other counters (e.g. RTC) */
  /* USER CODE BEGIN HAL_InitTick_1 */

  /* USER CODE END HAL_InitTick_1 */
  return HAL_OK;
  /* USER CODE BEGIN HAL_InitTick_2 */

  /* USER CODE END HAL_InitTick_2 */
}

/**
  * @note This function overwrites the __weak one from HAL
  */
uint32_t HAL_GetTick(void)
{
  uint32_t ret = 0;
  /* TIMER_IF can be based on other counter the SysTick e.g. RTC */
  /* USER CODE BEGIN HAL_GetTick_1 */

  /* USER CODE END HAL_GetTick_1 */
  if (SYS_TimerInitialisedFlag == 0)
  {
    /* TIMER_IF_GetTimerValue should be used only once UTIL_TIMER_Init() is initialized */
    /* If HAL_Delay or a TIMEOUT countdown is necessary during initialization phase */
    /* please use temporarily another timebase source (SysTick or TIMx), which implies also */
    /* to rework the above function HAL_InitTick() and to call HAL_IncTick() on the timebase IRQ */
    /* Note: when TIMER_IF is based on RTC, stm32wlxx_hal_rtc.c calls this function before TimeServer is functional */
    /* RTC TIMEOUT will not expire, i.e. if RTC has an hw problem it will keep looping in the RTC_Init function */
    /* USER CODE BEGIN HAL_GetTick_EarlyCall */

    /* USER CODE END HAL_GetTick_EarlyCall */
  }
  else
  {
    ret = TIMER_IF_GetTimerValue();
  }
  /* USER CODE BEGIN HAL_GetTick_2 */

  /* USER CODE END HAL_GetTick_2 */
  return ret;
}

/**
  * @note This function overwrites the __weak one from HAL
  */
void HAL_Delay(__IO uint32_t Delay)
{
  /* TIMER_IF can be based on other counter the SysTick e.g. RTC */
  /* USER CODE BEGIN HAL_Delay_1 */

  /* USER CODE END HAL_Delay_1 */
  TIMER_IF_DelayMs(Delay);
  /* USER CODE BEGIN HAL_Delay_2 */

  /* USER CODE END HAL_Delay_2 */
}

/* USER CODE BEGIN Overload_HAL_weaks */

/* USER CODE END Overload_HAL_weaks */