simplify the BSP to keep are timer_f and include the RTC library

Include the STM32RTC library to all the BSP as only few functions
remain in the BSP as the RTC is instantiated by the STM32RTC library

Signed-off-by: Francois Ramu <francois.ramu@st.com>

src/BSP/timer_if.c

@@ -27,18 +27,56 @@
 // #include "stm32_lpm.h"
 // #include "utilities_def.h"
 #include "stm32wlxx_ll_rtc.h"
-#include "rtc.h"
 
 /* USER CODE BEGIN Includes */
 
 /* USER CODE END Includes */
 
 /* External variables ---------------------------------------------------------*/
-/**
-  * @brief RTC handle
-  */
+
 extern RTC_HandleTypeDef RtcHandle;
 
+/* HAL MSP function used for RTC_Init */
+void HAL_RTC_MspInit(RTC_HandleTypeDef* rtcHandle)
+{
+
+  if(rtcHandle->Instance==RTC)
+  {
+    if (HAL_RTCEx_SetSSRU_IT(rtcHandle) != HAL_OK)
+    {
+        Error_Handler();
+    }
+
+    /* RTC interrupt Init */
+    HAL_NVIC_SetPriority(TAMP_STAMP_LSECSS_SSRU_IRQn, 0, 0);
+    HAL_NVIC_EnableIRQ(TAMP_STAMP_LSECSS_SSRU_IRQn);
+
+    HAL_NVIC_SetPriority(RTC_Alarm_IRQn, RTC_IRQ_PRIO, RTC_IRQ_SUBPRIO);
+    HAL_NVIC_EnableIRQ(RTC_Alarm_IRQn);
+  }
+}
+
+void HAL_RTC_MspDeInit(RTC_HandleTypeDef* rtcHandle)
+{
+
+  if(rtcHandle->Instance==RTC)
+  {
+  /* USER CODE BEGIN RTC_MspDeInit 0 */
+
+  /* USER CODE END RTC_MspDeInit 0 */
+    /* Peripheral clock disable */
+    __HAL_RCC_RTC_DISABLE();
+    __HAL_RCC_RTCAPB_CLK_DISABLE();
+
+    /* RTC interrupt Deinit */
+    HAL_NVIC_DisableIRQ(TAMP_STAMP_LSECSS_SSRU_IRQn);
+    HAL_NVIC_DisableIRQ(RTC_Alarm_IRQn);
+  /* USER CODE BEGIN RTC_MspDeInit 1 */
+
+  /* USER CODE END RTC_MspDeInit 1 */
+  }
+}
+
 /**
   * @brief Timer driver callbacks handler
   */
@@ -187,6 +225,12 @@ UTIL_TIMER_Status_t TIMER_IF_Init(void)
   if (RTC_Initialized == false)
   {
     /* RTC is already Initialized by the LoRaWan::begin */
+    RtcHandle.IsEnabled.RtcFeatures = UINT32_MAX;
+
+    /** Enable the Alarm B just after the HAL_RTC_Init */
+    RTC_StartAlarm(RTC_ALARM_B, 0, 0, 0, 0, 0, RTC_HOURFORMAT12_PM, 32UL);
+
+    /*Stop Timer */
     TIMER_IF_StopTimer();
 
     /*overload RTC feature enable*/

src/BSP/timer_if.h

@@ -46,6 +46,7 @@ void UTIL_TIMER_IRQ_MAP_PROCESS(void *data);
 /* Exported types ------------------------------------------------------------*/
 /* USER CODE BEGIN ET */
 
+
 /* USER CODE END ET */
 
 /* Exported constants --------------------------------------------------------*/