sys_app.c

/**
  ******************************************************************************
  * @file    sys_app.c
  * @author  MCD Application Team
  * @brief   Initializes HW and SW system entities (not related to the radio)
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under Ultimate Liberty license
  * SLA0044, the "License"; You may not use this file except in compliance with
  * the License. You may obtain a copy of the License at:
  *                             www.st.com/SLA0044
  *
  ******************************************************************************
  */

#include <stdio.h>
#include "app.h"
#include "sys_app.h"
#include "stm32_seq.h"
#include "stm32_systime.h"
#include "GNSE_lpm.h"
#include "GNSE_rtc.h"

#define MAX_TS_SIZE (int)16

/**
  * @brief Returns sec and msec based on the systime in use
  * @param none
  * @return  none
  */
static void TimestampNow(uint8_t *buff, uint16_t *size);

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

/**
  * @brief initialises the system (dbg pins, trace, mbmux, systimer, LPM, ...)
  * @param none
  * @return  none
  * TODO: Improve with system wide Init(), see https://github.com/TheThingsIndustries/generic-node-se/issues/57
  */
void SystemApp_Init(void)
{
  /* Ensure that MSI is wake-up system clock */
  __HAL_RCC_WAKEUPSTOP_CLK_CONFIG(RCC_STOP_WAKEUPCLOCK_MSI);
  /*Initialises timer and RTC*/
  UTIL_TIMER_Init();

  /* Initialize the Low Power Manager and Debugger */
#if defined(DEBUGGER_ON) && (DEBUGGER_ON == 1)
  GNSE_LPM_Init(GNSE_LPM_SLEEP_STOP_DEBUG_MODE);
#elif defined(DEBUGGER_ON) && (DEBUGGER_ON == 0)
  GNSE_LPM_Init(GNSE_LPM_SLEEP_STOP_MODE);
#endif

  /* Initialize Tracer/Logger */
  GNSE_TRACER_INIT();
  GNSE_TRACER_TIMESTAMP(TimestampNow);
  GNSE_app_printAppInfo();

  /* Here user can init the board peripherals and sensors */
}

/**
  * @brief redefines __weak function in stm32_seq.c such to enter low power
  * @param none
  * @return  none
  */
void UTIL_SEQ_Idle(void)
{
  GNSE_LPM_EnterLowPower();
}

static void TimestampNow(uint8_t *buff, uint16_t *size)
{
  SysTime_t curtime = SysTimeGet();
  tiny_snprintf_like((char *)buff, MAX_TS_SIZE, "%ds%03d:", curtime.Seconds, curtime.SubSeconds);
  *size = strlen((char *)buff);
}

/* Disable StopMode when traces need to be printed */
void ADV_TRACER_PreSendHook(void)
{
  GNSE_LPM_SetStopMode((1 << GNSE_LPM_UART_TRACER), GNSE_LPM_DISABLE);
}

/* Re-enable StopMode when traces have been printed */
void ADV_TRACER_PostSendHook(void)
{
  GNSE_LPM_SetStopMode((1 << GNSE_LPM_UART_TRACER), GNSE_LPM_ENABLE);
}

static void tiny_snprintf_like(char *buf, uint32_t maxsize, const char *strFormat, ...)
{
  va_list vaArgs;
  va_start(vaArgs, strFormat);
  ADV_TRACER_VSNPRINTF(buf, maxsize, strFormat, vaArgs);
  va_end(vaArgs);
}

/**
  * @brief This function configures the source of the time base.
  * @brief  don't enable systick
  * @param TickPriority: Tick interrupt priority.
  * @return HAL status
  */
HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority)
{
  /*Initialize the RTC services */
  return HAL_OK;
}

/**
  * @brief Provide a tick value in millisecond measured using RTC
  * @note This function overwrites the __weak one from HAL
  * @return tick value
  */
uint32_t HAL_GetTick(void)
{
  return GNSE_RTC_GetTimerValue();
}

/**
  * @brief This function provides delay (in ms)
  * @param Delay: specifies the delay time length, in milliseconds.
  * @return None
  */
void HAL_Delay(__IO uint32_t Delay)
{
  GNSE_RTC_DelayMs(Delay); /* based on RTC */
}

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/