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Diffstat (limited to 'Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_hal_rtc.c')
| -rw-r--r-- | Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_hal_rtc.c | 2038 |
1 files changed, 2038 insertions, 0 deletions
diff --git a/Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_hal_rtc.c b/Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_hal_rtc.c new file mode 100644 index 0000000..aea6b9f --- /dev/null +++ b/Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_hal_rtc.c @@ -0,0 +1,2038 @@ +/** + ****************************************************************************** + * @file stm32u0xx_hal_rtc.c + * @author GPM Application Team + * @brief RTC HAL module driver. + * This file provides firmware functions to manage the following + * functionalities of the Real-Time Clock (RTC) peripheral: + * + Initialization/de-initialization functions + * + Calendar (Time and Date) configuration + * + Alarms (Alarm A and Alarm B) configuration + * + WakeUp Timer configuration + * + TimeStamp configuration + * + Tampers configuration + * + Backup Data Registers configuration + * + RTC Tamper and TimeStamp Pins Selection + * + Interrupts and flags management + * + ****************************************************************************** + * @attention + * + * Copyright (c) 2023 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. + * + ****************************************************************************** + @verbatim + =============================================================================== + ##### RTC Operating Condition ##### + =============================================================================== + [..] The real-time clock (RTC) and the RTC backup registers can be powered + from the VBAT voltage when the main VDD supply is powered off. + To retain the content of the RTC backup registers and supply the RTC + when VDD is turned off, VBAT pin can be connected to an optional + standby voltage supplied by a battery or by another source. + + ##### Backup Domain Reset ##### + =============================================================================== + [..] The backup domain reset sets all RTC registers and the RCC_BDCR register + to their reset values. + A backup domain reset is generated when one of the following events occurs: + (#) Software reset, triggered by setting the BDRST bit in the + RCC Backup domain control register (RCC_BDCR). + (#) VDD or VBAT power on, if both supplies have previously been powered off. + (#) Tamper detection event resets all data backup registers. + + ##### Backup Domain Access ##### + ================================================================== + [..] After reset, the backup domain (RTC registers and RTC backup data registers) + is protected against possible unwanted write accesses. + [..] To enable access to the RTC Domain and RTC registers, proceed as follows: + (+) Enable the Power Controller (PWR) APB1 interface clock using the + __HAL_RCC_PWR_CLK_ENABLE() function. + (+) Enable access to RTC domain using the HAL_PWR_EnableBkUpAccess() function. + (+) Select the RTC clock source using the __HAL_RCC_RTC_CONFIG() function. + (+) Enable RTC Clock using the __HAL_RCC_RTC_ENABLE() function. + + [..] To enable access to the RTC Domain and RTC registers, proceed as follows: + (#) Call the function HAL_RCCEx_PeriphCLKConfig with RCC_PERIPHCLK_RTC for + PeriphClockSelection and select RTCClockSelection (LSE, LSI or HSEdiv32) + (#) Enable RTC Clock using the __HAL_RCC_RTC_ENABLE() macro. + + ##### How to use RTC Driver ##### + =================================================================== + [..] + (+) Enable the RTC domain access (see description in the section above). + (+) Configure the RTC Prescaler (Asynchronous and Synchronous) and RTC hour + format using the HAL_RTC_Init() function. + + *** Time and Date configuration *** + =================================== + [..] + (+) To configure the RTC Calendar (Time and Date) use the HAL_RTC_SetTime() + and HAL_RTC_SetDate() functions. + (+) To read the RTC Calendar, use the HAL_RTC_GetTime() and HAL_RTC_GetDate() functions. + + *** Alarm configuration *** + =========================== + [..] + (+) To configure the RTC Alarm use the HAL_RTC_SetAlarm() function. + You can also configure the RTC Alarm with interrupt mode using the + HAL_RTC_SetAlarm_IT() function. + (+) To read the RTC Alarm, use the HAL_RTC_GetAlarm() function. + + ##### RTC and low power modes ##### + ================================================================== + [..] The MCU can be woken up from a low power mode by an RTC alternate + function. + [..] The RTC alternate functions are the RTC alarms (Alarm A and Alarm B), + RTC wakeup, RTC tamper event detection and RTC time stamp event detection. + These RTC alternate functions can wake up the system from the Stop and + Standby low power modes. + [..] The system can also wake up from low power modes without depending + on an external interrupt (Auto-wakeup mode), by using the RTC alarm + or the RTC wakeup events. + [..] The RTC provides a programmable time base for waking up from the + Stop or Standby mode at regular intervals. + Wakeup from STOP and STANDBY modes is possible only when the RTC clock source + is LSE or LSI. + + *** Callback registration *** + ============================================= + When The compilation define USE_HAL_RTC_REGISTER_CALLBACKS is set to 0 or + not defined, the callback registration feature is not available and all callbacks + are set to the corresponding weak functions. This is the recommended configuration + in order to optimize memory/code consumption footprint/performances. + + The compilation define USE_RTC_REGISTER_CALLBACKS when set to 1 + allows the user to configure dynamically the driver callbacks. + Use Function @ref HAL_RTC_RegisterCallback() to register an interrupt callback. + + Function @ref HAL_RTC_RegisterCallback() allows to register following callbacks: + (+) AlarmAEventCallback : RTC Alarm A Event callback. + (+) AlarmBEventCallback : RTC Alarm B Event callback. + (+) TimeStampEventCallback : RTC TimeStamp Event callback. + (+) WakeUpTimerEventCallback : RTC WakeUpTimer Event callback. + (+) SSRUEventCallback : RTC SSRU Event callback. + (+) Tamper1EventCallback : RTC Tamper 1 Event callback. + (+) Tamper2EventCallback : RTC Tamper 2 Event callback. + (+) Tamper3EventCallback : RTC Tamper 3 Event callback. + (+) Tamper4EventCallback : RTC Tamper 4 Event callback. + (+) Tamper5EventCallback : RTC Tamper 5 Event callback. + (+) InternalTamper3EventCallback : RTC InternalTamper 3 Event callback. + (+) InternalTamper4EventCallback : RTC InternalTamper 4 Event callback. + (+) InternalTamper5EventCallback : RTC InternalTamper 5 Event callback. + (+) InternalTamper6EventCallback : RTC InternalTamper 6 Event callback. + (+) MspInitCallback : RTC MspInit callback. + (+) MspDeInitCallback : RTC MspDeInit callback. + This function takes as parameters the HAL peripheral handle, the Callback ID + and a pointer to the user callback function. + + Use function @ref HAL_RTC_UnRegisterCallback() to reset a callback to the default + weak function. + @ref HAL_RTC_UnRegisterCallback() takes as parameters the HAL peripheral handle, + and the Callback ID. + This function allows to reset following callbacks: + (+) AlarmAEventCallback : RTC Alarm A Event callback. + (+) AlarmBEventCallback : RTC Alarm B Event callback. + (+) TimeStampEventCallback : RTC TimeStamp Event callback. + (+) WakeUpTimerEventCallback : RTC WakeUpTimer Event callback. + (+) SSRUEventCallback : RTC SSRU Event callback. + (+) Tamper1EventCallback : RTC Tamper 1 Event callback. + (+) Tamper2EventCallback : RTC Tamper 2 Event callback. + (+) Tamper3EventCallback : RTC Tamper 3 Event callback. + (+) Tamper4EventCallback : RTC Tamper 4 Event callback. + (+) Tamper5EventCallback : RTC Tamper 5 Event callback. + (+) InternalTamper3EventCallback : RTC Internal Tamper 3 Event callback. + (+) InternalTamper4EventCallback : RTC Internal Tamper 4 Event callback. + (+) InternalTamper5EventCallback : RTC Internal Tamper 5 Event callback. + (+) InternalTamper6EventCallback : RTC Internal Tamper 6 Event callback. + (+) MspInitCallback : RTC MspInit callback. + (+) MspDeInitCallback : RTC MspDeInit callback. + + By default, after the @ref HAL_RTC_Init() and when the state is HAL_RTC_STATE_RESET, + all callbacks are set to the corresponding weak functions : + examples @ref AlarmAEventCallback(), @ref TimeStampEventCallback(). + Exception done for MspInit and MspDeInit callbacks that are reset to the legacy weak function + in the @ref HAL_RTC_Init()/@ref HAL_RTC_DeInit() only when these callbacks are null + (not registered beforehand). + If not, MspInit or MspDeInit are not null, @ref HAL_RTC_Init()/@ref HAL_RTC_DeInit() + keep and use the user MspInit/MspDeInit callbacks (registered beforehand) + + Callbacks can be registered/unregistered in HAL_RTC_STATE_READY state only. + Exception done MspInit/MspDeInit that can be registered/unregistered + in HAL_RTC_STATE_READY or HAL_RTC_STATE_RESET state, + thus registered (user) MspInit/DeInit callbacks can be used during the Init/DeInit. + In that case first register the MspInit/MspDeInit user callbacks + using @ref HAL_RTC_RegisterCallback() before calling @ref HAL_RTC_DeInit() + or @ref HAL_RTC_Init() function. + + When The compilation define USE_HAL_RTC_REGISTER_CALLBACKS is set to 0 or + not defined, the callback registration feature is not available and all callbacks + are set to the corresponding weak functions. + + @endverbatim + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32u0xx_hal.h" + +/** @addtogroup STM32U0xx_HAL_Driver + * @{ + */ + + +/** @addtogroup RTC + * @brief RTC HAL module driver + * @{ + */ + +#ifdef HAL_RTC_MODULE_ENABLED + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Exported functions --------------------------------------------------------*/ + +/** @addtogroup RTC_Exported_Functions + * @{ + */ + +/** @addtogroup RTC_Exported_Functions_Group1 + * @brief Initialization and Configuration functions + * +@verbatim + =============================================================================== + ##### Initialization and de-initialization functions ##### + =============================================================================== + [..] This section provides functions allowing to initialize and configure the + RTC Prescaler (Synchronous and Asynchronous), RTC Hour format, disable + RTC registers Write protection, enter and exit the RTC initialization mode, + RTC registers synchronization check and reference clock detection enable. + (#) The RTC Prescaler is programmed to generate the RTC 1Hz time base. + It is split into 2 programmable prescalers to minimize power consumption. + (++) A 7-bit asynchronous prescaler and a 15-bit synchronous prescaler. + (++) When both prescalers are used, it is recommended to configure the + asynchronous prescaler to a high value to minimize power consumption. + (#) All RTC registers are Write protected. Writing to the RTC registers + is enabled by writing a key into the Write Protection register, RTC_WPR. + (#) To configure the RTC Calendar, user application should enter + initialization mode. In this mode, the calendar counter is stopped + and its value can be updated. When the initialization sequence is + complete, the calendar restarts counting after 4 RTCCLK cycles. + (#) To read the calendar through the shadow registers after Calendar + initialization, calendar update or after wakeup from low power modes + the software must first clear the RSF flag. The software must then + wait until it is set again before reading the calendar, which means + that the calendar registers have been correctly copied into the + RTC_TR and RTC_DR shadow registers.The HAL_RTC_WaitForSynchro() function + implements the above software sequence (RSF clear and RSF check). + +@endverbatim + * @{ + */ + +/** + * @brief Initialize the RTC peripheral + * @param hrtc RTC handle + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTC_Init(RTC_HandleTypeDef *hrtc) +{ + HAL_StatusTypeDef status = HAL_ERROR; + + /* Check the RTC peripheral state */ + if (hrtc != NULL) + { + status = HAL_OK; + /* Check the parameters */ + assert_param(IS_RTC_ALL_INSTANCE(hrtc->Instance)); + assert_param(IS_RTC_HOUR_FORMAT(hrtc->Init.HourFormat)); + assert_param(IS_RTC_ASYNCH_PREDIV(hrtc->Init.AsynchPrediv)); + assert_param(IS_RTC_SYNCH_PREDIV(hrtc->Init.SynchPrediv)); + assert_param(IS_RTC_OUTPUT(hrtc->Init.OutPut)); + assert_param(IS_RTC_OUTPUT_REMAP(hrtc->Init.OutPutRemap)); + assert_param(IS_RTC_OUTPUT_POL(hrtc->Init.OutPutPolarity)); + assert_param(IS_RTC_OUTPUT_TYPE(hrtc->Init.OutPutType)); + assert_param(IS_RTC_OUTPUT_PULLUP(hrtc->Init.OutPutPullUp)); + assert_param(IS_RTC_BINARY_MODE(hrtc->Init.BinMode)); + assert_param(IS_RTC_BINARY_MIX_BCDU(hrtc->Init.BinMixBcdU)); + +#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1) + if (hrtc->State == HAL_RTC_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + hrtc->Lock = HAL_UNLOCKED; + + hrtc->AlarmAEventCallback = HAL_RTC_AlarmAEventCallback; /* Legacy weak AlarmAEventCallback */ + hrtc->AlarmBEventCallback = HAL_RTCEx_AlarmBEventCallback; /* Legacy weak AlarmBEventCallback */ + hrtc->TimeStampEventCallback = HAL_RTCEx_TimeStampEventCallback; /* Legacy weak TimeStampEventCallback */ + hrtc->WakeUpTimerEventCallback = HAL_RTCEx_WakeUpTimerEventCallback; /* Legacy weak + WakeUpTimerEventCallback */ + hrtc->SSRUEventCallback = HAL_RTCEx_SSRUEventCallback; /* Legacy weak SSRUEventCallback */ + hrtc->Tamper1EventCallback = HAL_RTCEx_Tamper1EventCallback; /* Legacy weak Tamper1EventCallback */ + hrtc->Tamper2EventCallback = HAL_RTCEx_Tamper2EventCallback; /* Legacy weak Tamper2EventCallback */ + hrtc->Tamper3EventCallback = HAL_RTCEx_Tamper3EventCallback; /* Legacy weak Tamper3EventCallback */ + hrtc->Tamper4EventCallback = HAL_RTCEx_Tamper4EventCallback; /* Legacy weak Tamper4EventCallback */ + hrtc->Tamper5EventCallback = HAL_RTCEx_Tamper5EventCallback; /* Legacy weak Tamper5EventCallback */ + hrtc->InternalTamper3EventCallback = HAL_RTCEx_InternalTamper3EventCallback; /* Legacy weak + InternalTamper1EventCallback */ + hrtc->InternalTamper4EventCallback = HAL_RTCEx_InternalTamper4EventCallback; /* Legacy weak + InternalTamper2EventCallback */ + hrtc->InternalTamper5EventCallback = HAL_RTCEx_InternalTamper5EventCallback; /* Legacy weak + InternalTamper3EventCallback */ + hrtc->InternalTamper6EventCallback = HAL_RTCEx_InternalTamper6EventCallback; /* Legacy weak + InternalTamper5EventCallback */ + + if (hrtc->MspInitCallback == NULL) + { + hrtc->MspInitCallback = HAL_RTC_MspInit; + } + /* Init the low level hardware */ + hrtc->MspInitCallback(hrtc); + + if (hrtc->MspDeInitCallback == NULL) + { + hrtc->MspDeInitCallback = HAL_RTC_MspDeInit; + } + } +#else + if (hrtc->State == HAL_RTC_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + hrtc->Lock = HAL_UNLOCKED; + + /* Initialize RTC MSP */ + HAL_RTC_MspInit(hrtc); + } +#endif /* (USE_HAL_RTC_REGISTER_CALLBACKS) */ + + /* Set RTC state */ + hrtc->State = HAL_RTC_STATE_BUSY; + + /* Disable the write protection for RTC registers */ + __HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); + + /* Set Initialization mode */ + if (RTC_EnterInitMode(hrtc) != HAL_OK) + { + /* Enable the write protection for RTC registers */ + __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); + + /* Set RTC state */ + hrtc->State = HAL_RTC_STATE_ERROR; + + status = HAL_ERROR; + } + else + { + /* Clear RTC_CR FMT, OSEL and POL Bits */ + CLEAR_BIT(RTC->CR, (RTC_CR_FMT | RTC_CR_POL | RTC_CR_OSEL | RTC_CR_TAMPOE)); + /* Set RTC_CR register */ + SET_BIT(RTC->CR, (hrtc->Init.HourFormat | hrtc->Init.OutPut | hrtc->Init.OutPutPolarity)); + + /* Configure the RTC PRER */ + WRITE_REG(RTC->PRER, ((hrtc->Init.SynchPrediv) | (hrtc->Init.AsynchPrediv << RTC_PRER_PREDIV_A_Pos))); + + /* Configure the Binary mode */ + MODIFY_REG(RTC->ICSR, RTC_ICSR_BIN | RTC_ICSR_BCDU, hrtc->Init.BinMode | hrtc->Init.BinMixBcdU); + + /* Exit Initialization mode */ + CLEAR_BIT(RTC->ICSR, RTC_ICSR_INIT); + + /* If CR_BYPSHAD bit = 0, wait for synchro else this check is not needed */ + if (READ_BIT(RTC->CR, RTC_CR_BYPSHAD) == 0U) + { + if (HAL_RTC_WaitForSynchro(hrtc) != HAL_OK) + { + /* Enable the write protection for RTC registers */ + __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); + + hrtc->State = HAL_RTC_STATE_ERROR; + status = HAL_ERROR; + } + } + + if (status == HAL_OK) + { + MODIFY_REG(RTC->CR, \ + RTC_CR_TAMPALRM_PU | RTC_CR_TAMPALRM_TYPE | RTC_CR_OUT2EN, \ + hrtc->Init.OutPutPullUp | hrtc->Init.OutPutType | hrtc->Init.OutPutRemap); + + /* Enable the write protection for RTC registers */ + __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); + + /* Set RTC state */ + hrtc->State = HAL_RTC_STATE_READY; + } + } + } + + return status; +} + +/** + * @brief DeInitialize the RTC peripheral. + * @note This function does not reset the RTC Backup Data registers. + * @param hrtc RTC handle + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTC_DeInit(RTC_HandleTypeDef *hrtc) +{ + HAL_StatusTypeDef status; + + /* Set RTC state */ + hrtc->State = HAL_RTC_STATE_BUSY; + + /* Disable the write protection for RTC registers */ + __HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); + + status = RTC_EnterInitMode(hrtc); + + /* Set Initialization mode */ + if (status != HAL_OK) + { + /* Set RTC state */ + hrtc->State = HAL_RTC_STATE_ERROR; + } + else + { + /* Reset all RTC CR register bits */ + CLEAR_REG(RTC->CR); + WRITE_REG(RTC->DR, (uint32_t)(RTC_DR_WDU_0 | RTC_DR_MU_0 | RTC_DR_DU_0)); + CLEAR_REG(RTC->TR); + WRITE_REG(RTC->WUTR, RTC_WUTR_WUT); + WRITE_REG(RTC->PRER, ((uint32_t)(RTC_PRER_PREDIV_A | 0xFFU))); + CLEAR_REG(RTC->ALRMAR); + CLEAR_REG(RTC->ALRMBR); + CLEAR_REG(RTC->SHIFTR); + CLEAR_REG(RTC->CALR); + CLEAR_REG(RTC->ALRMASSR); + CLEAR_REG(RTC->ALRMBSSR); + WRITE_REG(RTC->SCR, RTC_SCR_CITSF | RTC_SCR_CTSOVF | RTC_SCR_CTSF | RTC_SCR_CWUTF | RTC_SCR_CALRBF | \ + RTC_SCR_CALRAF); + + /* Exit initialization mode */ + CLEAR_BIT(RTC->ICSR, RTC_ICSR_INIT); + + status = HAL_RTC_WaitForSynchro(hrtc); + + if (status != HAL_OK) + { + hrtc->State = HAL_RTC_STATE_ERROR; + } + else + { + /* Reset TAMP registers */ + CLEAR_REG(TAMP->CR1); + CLEAR_REG(TAMP->CR2); + CLEAR_REG(TAMP->CR3); + CLEAR_REG(TAMP->FLTCR); + } + } + + /* Enable the write protection for RTC registers */ + __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); + + if (status == HAL_OK) + { +#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1) + if (hrtc->MspDeInitCallback == NULL) + { + hrtc->MspDeInitCallback = HAL_RTC_MspDeInit; + } + + /* DeInit the low level hardware: CLOCK, NVIC.*/ + hrtc->MspDeInitCallback(hrtc); + +#else + /* De-Initialize RTC MSP */ + HAL_RTC_MspDeInit(hrtc); +#endif /* (USE_HAL_RTC_REGISTER_CALLBACKS) */ + + hrtc->State = HAL_RTC_STATE_RESET; + } + + /* Release Lock */ + __HAL_UNLOCK(hrtc); + + return status; +} + +#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1) +/** + * @brief Register a User RTC Callback + * To be used instead of the weak predefined callback + * @param hrtc RTC handle + * @param CallbackID ID of the callback to be registered + * This parameter can be one of the following values: + * @arg @ref HAL_RTC_ALARM_A_EVENT_CB_ID Alarm A Event Callback ID + * @arg @ref HAL_RTC_ALARM_B_EVENT_CB_ID Alarm B Event Callback ID + * @arg @ref HAL_RTC_TIMESTAMP_EVENT_CB_ID TimeStamp Event Callback ID + * @arg @ref HAL_RTC_WAKEUPTIMER_EVENT_CB_ID WakeUp Timer Event Callback ID + * @arg @ref HAL_RTC_SSRU_EVENT_CB_ID SSRU Event Callback ID + * @arg @ref HAL_RTC_TAMPER1_EVENT_CB_ID Tamper 1 Callback ID + * @arg @ref HAL_RTC_TAMPER2_EVENT_CB_ID Tamper 2 Callback ID + * @arg @ref HAL_RTC_TAMPER3_EVENT_CB_ID Tamper 3 Callback ID + * @arg @ref HAL_RTC_TAMPER4_EVENT_CB_ID Tamper 4 Callback ID + * @arg @ref HAL_RTC_TAMPER5_EVENT_CB_ID Tamper 5 Callback ID + * @arg @ref HAL_RTC_INTERNAL_TAMPER3_EVENT_CB_ID Internal Tamper 3 Callback ID + * @arg @ref HAL_RTC_INTERNAL_TAMPER4_EVENT_CB_ID Internal Tamper 4 Callback ID + * @arg @ref HAL_RTC_INTERNAL_TAMPER5_EVENT_CB_ID Internal Tamper 5 Callback ID + * @arg @ref HAL_RTC_INTERNAL_TAMPER6_EVENT_CB_ID Internal Tamper 6 Callback ID + * @param pCallback pointer to the Callback function + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTC_RegisterCallback(RTC_HandleTypeDef *hrtc, HAL_RTC_CallbackIDTypeDef CallbackID, + pRTC_CallbackTypeDef pCallback) +{ + HAL_StatusTypeDef status = HAL_OK; + + if (pCallback == NULL) + { + return HAL_ERROR; + } + + /* Process locked */ + __HAL_LOCK(hrtc); + + if (HAL_RTC_STATE_READY == hrtc->State) + { + switch (CallbackID) + { + case HAL_RTC_ALARM_A_EVENT_CB_ID : + hrtc->AlarmAEventCallback = pCallback; + break; + + case HAL_RTC_ALARM_B_EVENT_CB_ID : + hrtc->AlarmBEventCallback = pCallback; + break; + + case HAL_RTC_TIMESTAMP_EVENT_CB_ID : + hrtc->TimeStampEventCallback = pCallback; + break; + + case HAL_RTC_WAKEUPTIMER_EVENT_CB_ID : + hrtc->WakeUpTimerEventCallback = pCallback; + break; + + case HAL_RTC_SSRU_EVENT_CB_ID : + hrtc->SSRUEventCallback = pCallback; + break; + + case HAL_RTC_TAMPER1_EVENT_CB_ID : + hrtc->Tamper1EventCallback = pCallback; + break; + + case HAL_RTC_TAMPER2_EVENT_CB_ID : + hrtc->Tamper2EventCallback = pCallback; + break; + + case HAL_RTC_TAMPER3_EVENT_CB_ID : + hrtc->Tamper3EventCallback = pCallback; + break; + + case HAL_RTC_TAMPER4_EVENT_CB_ID : + hrtc->Tamper4EventCallback = pCallback; + break; + + case HAL_RTC_TAMPER5_EVENT_CB_ID : + hrtc->Tamper5EventCallback = pCallback; + break; + + case HAL_RTC_INTERNAL_TAMPER3_EVENT_CB_ID : + hrtc->InternalTamper3EventCallback = pCallback; + break; + + case HAL_RTC_INTERNAL_TAMPER4_EVENT_CB_ID : + hrtc->InternalTamper4EventCallback = pCallback; + break; + + case HAL_RTC_INTERNAL_TAMPER5_EVENT_CB_ID : + hrtc->InternalTamper5EventCallback = pCallback; + break; + + case HAL_RTC_INTERNAL_TAMPER6_EVENT_CB_ID : + hrtc->InternalTamper6EventCallback = pCallback; + break; + + case HAL_RTC_MSPINIT_CB_ID : + hrtc->MspInitCallback = pCallback; + break; + + case HAL_RTC_MSPDEINIT_CB_ID : + hrtc->MspDeInitCallback = pCallback; + break; + + default : + /* Return error status */ + status = HAL_ERROR; + break; + } + } + else if (HAL_RTC_STATE_RESET == hrtc->State) + { + switch (CallbackID) + { + case HAL_RTC_MSPINIT_CB_ID : + hrtc->MspInitCallback = pCallback; + break; + + case HAL_RTC_MSPDEINIT_CB_ID : + hrtc->MspDeInitCallback = pCallback; + break; + + default : + /* Return error status */ + status = HAL_ERROR; + break; + } + } + else + { + /* Return error status */ + status = HAL_ERROR; + } + + /* Release Lock */ + __HAL_UNLOCK(hrtc); + + return status; +} + +/** + * @brief Unregister an RTC Callback + * RTC callback is redirected to the weak predefined callback + * @param hrtc RTC handle + * @param CallbackID ID of the callback to be unregistered + * This parameter can be one of the following values: + * This parameter can be one of the following values: + * @arg @ref HAL_RTC_ALARM_A_EVENT_CB_ID Alarm A Event Callback ID + * @arg @ref HAL_RTC_ALARM_B_EVENT_CB_ID Alarm B Event Callback ID + * @arg @ref HAL_RTC_TIMESTAMP_EVENT_CB_ID TimeStamp Event Callback ID + * @arg @ref HAL_RTC_SSRU_EVENT_CB_ID SSRU Callback ID + * @arg @ref HAL_RTC_WAKEUPTIMER_EVENT_CB_ID WakeUp Timer Event Callback ID + * @arg @ref HAL_RTC_TAMPER1_EVENT_CB_ID Tamper 1 Callback ID + * @arg @ref HAL_RTC_TAMPER2_EVENT_CB_ID Tamper 2 Callback ID + * @arg @ref HAL_RTC_TAMPER3_EVENT_CB_ID Tamper 3 Callback ID + * @arg @ref HAL_RTC_TAMPER4_EVENT_CB_ID Tamper 4 Callback ID + * @arg @ref HAL_RTC_TAMPER5_EVENT_CB_ID Tamper 5 Callback ID + * @arg @ref HAL_RTC_INTERNAL_TAMPER3_EVENT_CB_ID Internal Tamper 3 Callback ID + * @arg @ref HAL_RTC_INTERNAL_TAMPER4_EVENT_CB_ID Internal Tamper 4 Callback ID + * @arg @ref HAL_RTC_INTERNAL_TAMPER5_EVENT_CB_ID Internal Tamper 5 Callback ID + * @arg @ref HAL_RTC_INTERNAL_TAMPER6_EVENT_CB_ID Internal Tamper 6 Callback ID + * @arg @ref HAL_RTC_MSPINIT_CB_ID Msp Init callback ID + * @arg @ref HAL_RTC_MSPDEINIT_CB_ID Msp DeInit callback ID + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTC_UnRegisterCallback(RTC_HandleTypeDef *hrtc, HAL_RTC_CallbackIDTypeDef CallbackID) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Process locked */ + __HAL_LOCK(hrtc); + + if (HAL_RTC_STATE_READY == hrtc->State) + { + switch (CallbackID) + { + case HAL_RTC_ALARM_A_EVENT_CB_ID : + hrtc->AlarmAEventCallback = HAL_RTC_AlarmAEventCallback; /* Legacy weak AlarmAEventCallback */ + break; + + case HAL_RTC_ALARM_B_EVENT_CB_ID : + hrtc->AlarmBEventCallback = HAL_RTCEx_AlarmBEventCallback; /* Legacy weak AlarmBEventCallback */ + break; + + case HAL_RTC_TIMESTAMP_EVENT_CB_ID : + hrtc->TimeStampEventCallback = HAL_RTCEx_TimeStampEventCallback; /* Legacy weak TimeStampEventCallback */ + break; + + case HAL_RTC_WAKEUPTIMER_EVENT_CB_ID : + hrtc->WakeUpTimerEventCallback = HAL_RTCEx_WakeUpTimerEventCallback; /* Legacy weak WakeUpTimerEventCallback */ + break; + + case HAL_RTC_SSRU_EVENT_CB_ID : + hrtc->SSRUEventCallback = HAL_RTCEx_SSRUEventCallback; /* Legacy weak SSRUEventCallback */ + break; + + case HAL_RTC_TAMPER1_EVENT_CB_ID : + hrtc->Tamper1EventCallback = HAL_RTCEx_Tamper1EventCallback; /* Legacy weak Tamper1EventCallback */ + break; + + case HAL_RTC_TAMPER2_EVENT_CB_ID : + hrtc->Tamper2EventCallback = HAL_RTCEx_Tamper2EventCallback; /* Legacy weak Tamper2EventCallback */ + break; + + case HAL_RTC_TAMPER3_EVENT_CB_ID : + hrtc->Tamper3EventCallback = HAL_RTCEx_Tamper3EventCallback; /* Legacy weak Tamper3EventCallback */ + break; + + case HAL_RTC_TAMPER4_EVENT_CB_ID : + hrtc->Tamper4EventCallback = HAL_RTCEx_Tamper4EventCallback; /* Legacy weak Tamper4EventCallback */ + break; + + case HAL_RTC_TAMPER5_EVENT_CB_ID : + hrtc->Tamper5EventCallback = HAL_RTCEx_Tamper5EventCallback; /* Legacy weak Tamper5EventCallback */ + break; + + case HAL_RTC_INTERNAL_TAMPER3_EVENT_CB_ID : + hrtc->InternalTamper3EventCallback = HAL_RTCEx_InternalTamper3EventCallback; /* Legacy weak + InternalTamper3EventCallback */ + break; + + case HAL_RTC_INTERNAL_TAMPER4_EVENT_CB_ID : + hrtc->InternalTamper4EventCallback = HAL_RTCEx_InternalTamper4EventCallback; /* Legacy weak + InternalTamper3EventCallback */ + break; + + case HAL_RTC_INTERNAL_TAMPER5_EVENT_CB_ID : + hrtc->InternalTamper5EventCallback = HAL_RTCEx_InternalTamper5EventCallback; /* Legacy weak + InternalTamper5EventCallback */ + break; + + case HAL_RTC_INTERNAL_TAMPER6_EVENT_CB_ID : + hrtc->InternalTamper6EventCallback = HAL_RTCEx_InternalTamper6EventCallback; /* Legacy weak + InternalTamper8EventCallback */ + break; + + case HAL_RTC_MSPINIT_CB_ID : + hrtc->MspInitCallback = HAL_RTC_MspInit; + break; + + case HAL_RTC_MSPDEINIT_CB_ID : + hrtc->MspDeInitCallback = HAL_RTC_MspDeInit; + break; + + default : + /* Return error status */ + status = HAL_ERROR; + break; + } + } + else if (HAL_RTC_STATE_RESET == hrtc->State) + { + switch (CallbackID) + { + case HAL_RTC_MSPINIT_CB_ID : + hrtc->MspInitCallback = HAL_RTC_MspInit; + break; + + case HAL_RTC_MSPDEINIT_CB_ID : + hrtc->MspDeInitCallback = HAL_RTC_MspDeInit; + break; + + default : + /* Return error status */ + status = HAL_ERROR; + break; + } + } + else + { + /* Return error status */ + status = HAL_ERROR; + } + + /* Release Lock */ + __HAL_UNLOCK(hrtc); + + return status; +} +#endif /* USE_HAL_RTC_REGISTER_CALLBACKS */ + +/** + * @brief Initialize the RTC MSP. + * @param hrtc RTC handle + * @retval None + */ +__weak void HAL_RTC_MspInit(RTC_HandleTypeDef *hrtc) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hrtc); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_RTC_MspInit could be implemented in the user file + */ +} + +/** + * @brief DeInitialize the RTC MSP. + * @param hrtc RTC handle + * @retval None + */ +__weak void HAL_RTC_MspDeInit(RTC_HandleTypeDef *hrtc) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hrtc); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_RTC_MspDeInit could be implemented in the user file + */ +} + +/** + * @} + */ + +/** @addtogroup RTC_Exported_Functions_Group2 + * @brief RTC Time and Date functions + * +@verbatim + =============================================================================== + ##### RTC Time and Date functions ##### + =============================================================================== + + [..] This section provides functions allowing to configure Time and Date features + +@endverbatim + * @{ + */ + +/** + * @brief Set RTC current time. + * @param hrtc RTC handle + * @param sTime Pointer to Time structure + * if Binary mode is RTC_BINARY_ONLY, this parameter is not used and RTC_SSR will be automatically + reset to 0xFFFFFFFF. else sTime->SubSeconds is not used and RTC_SSR will be automatically reset to + the A 7-bit async prescaler (RTC_PRER_PREDIV_A) + * @note DayLightSaving and StoreOperation interfaces are deprecated. + * To manage Daylight Saving Time, please use HAL_RTC_DST_xxx functions. + * @param Format Format of sTime->Hours, sTime->Minutes and sTime->Seconds. + * if Binary mode is RTC_BINARY_ONLY, this parameter is not used + * else this parameter can be one of the following values + * @arg RTC_FORMAT_BIN: Binary format + * @arg RTC_FORMAT_BCD: BCD format + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTC_SetTime(RTC_HandleTypeDef *hrtc, RTC_TimeTypeDef *sTime, uint32_t Format) +{ + uint32_t tmpreg; + +#ifdef USE_FULL_ASSERT + /* Check the parameters depending of the Binary mode with 32-bit free-running counter configuration. */ + if (READ_BIT(RTC->ICSR, RTC_ICSR_BIN) == RTC_BINARY_NONE) + { + /* Check the parameters */ + assert_param(IS_RTC_FORMAT(Format)); + } +#endif /* USE_FULL_ASSERT */ + + /* Process Locked */ + __HAL_LOCK(hrtc); + + hrtc->State = HAL_RTC_STATE_BUSY; + + /* Disable the write protection for RTC registers */ + __HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); + + /* Set Initialization mode */ + if (RTC_EnterInitMode(hrtc) != HAL_OK) + { + /* Enable the write protection for RTC registers */ + __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); + + /* Set RTC state */ + hrtc->State = HAL_RTC_STATE_ERROR; + + /* Process Unlocked */ + __HAL_UNLOCK(hrtc); + + return HAL_ERROR; + } + else + { + /* Check Binary mode ((32-bit free-running counter) */ + if (READ_BIT(RTC->ICSR, RTC_ICSR_BIN) != RTC_BINARY_ONLY) + { + if (Format == RTC_FORMAT_BIN) + { + if (READ_BIT(RTC->CR, RTC_CR_FMT) != 0U) + { + assert_param(IS_RTC_HOUR12(sTime->Hours)); + assert_param(IS_RTC_HOURFORMAT12(sTime->TimeFormat)); + } + else + { + sTime->TimeFormat = 0x00U; + assert_param(IS_RTC_HOUR24(sTime->Hours)); + } + assert_param(IS_RTC_MINUTES(sTime->Minutes)); + assert_param(IS_RTC_SECONDS(sTime->Seconds)); + + tmpreg = (uint32_t)(((uint32_t)RTC_ByteToBcd2(sTime->Hours) << RTC_TR_HU_Pos) | \ + ((uint32_t)RTC_ByteToBcd2(sTime->Minutes) << RTC_TR_MNU_Pos) | \ + ((uint32_t)RTC_ByteToBcd2(sTime->Seconds) << RTC_TR_SU_Pos) | \ + (((uint32_t)sTime->TimeFormat) << RTC_TR_PM_Pos)); + + } + else + { + if (READ_BIT(RTC->CR, RTC_CR_FMT) != 0U) + { + assert_param(IS_RTC_HOUR12(RTC_Bcd2ToByte(sTime->Hours))); + assert_param(IS_RTC_HOURFORMAT12(sTime->TimeFormat)); + } + else + { + sTime->TimeFormat = 0x00U; + assert_param(IS_RTC_HOUR24(RTC_Bcd2ToByte(sTime->Hours))); + } + assert_param(IS_RTC_MINUTES(RTC_Bcd2ToByte(sTime->Minutes))); + assert_param(IS_RTC_SECONDS(RTC_Bcd2ToByte(sTime->Seconds))); + tmpreg = (((uint32_t)(sTime->Hours) << RTC_TR_HU_Pos) | \ + ((uint32_t)(sTime->Minutes) << RTC_TR_MNU_Pos) | \ + ((uint32_t)(sTime->Seconds) << RTC_TR_SU_Pos) | \ + ((uint32_t)(sTime->TimeFormat) << RTC_TR_PM_Pos)); + } + + /* Set the RTC_TR register */ + WRITE_REG(RTC->TR, (tmpreg & RTC_TR_RESERVED_MASK)); + + /* Clear the bits to be configured (Deprecated. Use HAL_RTC_DST_xxx functions instead) */ + CLEAR_BIT(RTC->CR, RTC_CR_BKP); + + /* Configure the RTC_CR register (Deprecated. Use HAL_RTC_DST_xxx functions instead) */ + SET_BIT(RTC->CR, (sTime->DayLightSaving | sTime->StoreOperation)); + } + + /* Exit Initialization mode */ + CLEAR_BIT(RTC->ICSR, RTC_ICSR_INIT); + + /* If CR_BYPSHAD bit = 0, wait for synchro else this check is not needed */ + if (READ_BIT(RTC->CR, RTC_CR_BYPSHAD) == 0U) + { + if (HAL_RTC_WaitForSynchro(hrtc) != HAL_OK) + { + /* Enable the write protection for RTC registers */ + __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); + + hrtc->State = HAL_RTC_STATE_ERROR; + + /* Process Unlocked */ + __HAL_UNLOCK(hrtc); + + return HAL_ERROR; + } + } + + /* Enable the write protection for RTC registers */ + __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); + + hrtc->State = HAL_RTC_STATE_READY; + + __HAL_UNLOCK(hrtc); + + return HAL_OK; + } +} + +/** + * @brief Get RTC current time. + * @note You can use SubSeconds and SecondFraction (sTime structure fields returned) to convert SubSeconds + * value in second fraction ratio with time unit following generic formula: + * Second fraction ratio * time_unit= [(SecondFraction-SubSeconds)/(SecondFraction+1)] * time_unit + * This conversion can be performed only if no shift operation is pending (ie. SHFP=0) when PREDIV_S >= SS + * @note You must call HAL_RTC_GetDate() after HAL_RTC_GetTime() to unlock the values + * in the higher-order calendar shadow registers to ensure consistency between the time and date values. + * Reading RTC current time locks the values in calendar shadow registers until Current date is read + * to ensure consistency between the time and date values. + * @param hrtc RTC handle + * @param sTime + * if Binary mode is RTC_BINARY_ONLY, sTime->SubSeconds only is updated + * else + * Pointer to Time structure with Hours, Minutes and Seconds fields returned + * with input format (BIN or BCD), also SubSeconds field returning the + * RTC_SSR register content and SecondFraction field the Synchronous pre-scaler + * factor to be used for second fraction ratio computation. + * @param Format Format of sTime->Hours, sTime->Minutes and sTime->Seconds. + * if Binary mode is RTC_BINARY_ONLY, this parameter is not used + * else this parameter can be one of the following values: + * @arg RTC_FORMAT_BIN: Binary format + * @arg RTC_FORMAT_BCD: BCD format + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTC_GetTime(const RTC_HandleTypeDef *hrtc, RTC_TimeTypeDef *sTime, uint32_t Format) +{ + uint32_t tmpreg; + + UNUSED(hrtc); + /* Get subseconds structure field from the corresponding register */ + sTime->SubSeconds = READ_REG(RTC->SSR); + + if (READ_BIT(RTC->ICSR, RTC_ICSR_BIN) != RTC_BINARY_ONLY) + { + /* Check the parameters */ + assert_param(IS_RTC_FORMAT(Format)); + + /* Get SecondFraction structure field from the corresponding register field */ + sTime->SecondFraction = (uint32_t)(READ_REG(RTC->PRER) & RTC_PRER_PREDIV_S); + + /* Get the TR register */ + tmpreg = (uint32_t)(READ_REG(RTC->TR) & RTC_TR_RESERVED_MASK); + + /* Fill the structure fields with the read parameters */ + sTime->Hours = (uint8_t)((tmpreg & (RTC_TR_HT | RTC_TR_HU)) >> RTC_TR_HU_Pos); + sTime->Minutes = (uint8_t)((tmpreg & (RTC_TR_MNT | RTC_TR_MNU)) >> RTC_TR_MNU_Pos); + sTime->Seconds = (uint8_t)((tmpreg & (RTC_TR_ST | RTC_TR_SU)) >> RTC_TR_SU_Pos); + sTime->TimeFormat = (uint8_t)((tmpreg & (RTC_TR_PM)) >> RTC_TR_PM_Pos); + + /* Check the input parameters format */ + if (Format == RTC_FORMAT_BIN) + { + /* Convert the time structure parameters to Binary format */ + sTime->Hours = (uint8_t)RTC_Bcd2ToByte(sTime->Hours); + sTime->Minutes = (uint8_t)RTC_Bcd2ToByte(sTime->Minutes); + sTime->Seconds = (uint8_t)RTC_Bcd2ToByte(sTime->Seconds); + } + } + + return HAL_OK; +} + +/** + * @brief Set RTC current date. + * @param hrtc RTC handle + * @param sDate Pointer to date structure + * @param Format Format of sDate->Year, sDate->Month and sDate->Weekday. + * This parameter can be one of the following values: + * @arg RTC_FORMAT_BIN: Binary format + * @arg RTC_FORMAT_BCD: BCD format + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTC_SetDate(RTC_HandleTypeDef *hrtc, RTC_DateTypeDef *sDate, uint32_t Format) +{ + uint32_t datetmpreg; + + /* Check the parameters */ + assert_param(IS_RTC_FORMAT(Format)); + + /* Process Locked */ + __HAL_LOCK(hrtc); + + hrtc->State = HAL_RTC_STATE_BUSY; + + if ((Format == RTC_FORMAT_BIN) && ((sDate->Month & 0x10U) == 0x10U)) + { + sDate->Month = (uint8_t)((sDate->Month & (uint8_t)~(0x10U)) + (uint8_t)0x0AU); + } + + assert_param(IS_RTC_WEEKDAY(sDate->WeekDay)); + + if (Format == RTC_FORMAT_BIN) + { + assert_param(IS_RTC_YEAR(sDate->Year)); + assert_param(IS_RTC_MONTH(sDate->Month)); + assert_param(IS_RTC_DATE(sDate->Date)); + + datetmpreg = (((uint32_t)RTC_ByteToBcd2(sDate->Year) << RTC_DR_YU_Pos) | \ + ((uint32_t)RTC_ByteToBcd2(sDate->Month) << RTC_DR_MU_Pos) | \ + ((uint32_t)RTC_ByteToBcd2(sDate->Date) << RTC_DR_DU_Pos) | \ + ((uint32_t)sDate->WeekDay << RTC_DR_WDU_Pos)); + } + else + { + assert_param(IS_RTC_YEAR(RTC_Bcd2ToByte(sDate->Year))); + assert_param(IS_RTC_MONTH(RTC_Bcd2ToByte(sDate->Month))); + assert_param(IS_RTC_DATE(RTC_Bcd2ToByte(sDate->Date))); + + datetmpreg = ((((uint32_t)sDate->Year) << RTC_DR_YU_Pos) | \ + (((uint32_t)sDate->Month) << RTC_DR_MU_Pos) | \ + (((uint32_t)sDate->Date) << RTC_DR_DU_Pos) | \ + (((uint32_t)sDate->WeekDay) << RTC_DR_WDU_Pos)); + } + + /* Disable the write protection for RTC registers */ + __HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); + + /* Set Initialization mode */ + if (RTC_EnterInitMode(hrtc) != HAL_OK) + { + /* Enable the write protection for RTC registers */ + __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); + + /* Set RTC state*/ + hrtc->State = HAL_RTC_STATE_ERROR; + + /* Process Unlocked */ + __HAL_UNLOCK(hrtc); + + return HAL_ERROR; + } + else + { + /* Set the RTC_DR register */ + WRITE_REG(RTC->DR, (uint32_t)(datetmpreg & RTC_DR_RESERVED_MASK)); + + /* Exit Initialization mode */ + CLEAR_BIT(RTC->ICSR, RTC_ICSR_INIT); + + /* If CR_BYPSHAD bit = 0, wait for synchro else this check is not needed */ + if (READ_BIT(RTC->CR, RTC_CR_BYPSHAD) == 0U) + { + if (HAL_RTC_WaitForSynchro(hrtc) != HAL_OK) + { + /* Enable the write protection for RTC registers */ + __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); + + hrtc->State = HAL_RTC_STATE_ERROR; + + /* Process Unlocked */ + __HAL_UNLOCK(hrtc); + + return HAL_ERROR; + } + } + + /* Enable the write protection for RTC registers */ + __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); + + hrtc->State = HAL_RTC_STATE_READY ; + + /* Process Unlocked */ + __HAL_UNLOCK(hrtc); + + return HAL_OK; + } +} + +/** + * @brief Get RTC current date. + * @note You must call HAL_RTC_GetDate() after HAL_RTC_GetTime() to unlock the values + * in the higher-order calendar shadow registers to ensure consistency between the time and date values. + * Reading RTC current time locks the values in calendar shadow registers until Current date is read. + * @param hrtc RTC handle + * @param sDate Pointer to Date structure + * @param Format Format of sDate->Year, sDate->Month and sDate->Weekday. + * This parameter can be one of the following values: + * @arg RTC_FORMAT_BIN: Binary format + * @arg RTC_FORMAT_BCD: BCD format + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTC_GetDate(const RTC_HandleTypeDef *hrtc, RTC_DateTypeDef *sDate, uint32_t Format) +{ + uint32_t datetmpreg; + + UNUSED(hrtc); + /* Check the parameters */ + assert_param(IS_RTC_FORMAT(Format)); + + /* Get the DR register */ + datetmpreg = (uint32_t)(READ_REG(RTC->DR) & RTC_DR_RESERVED_MASK); + + /* Fill the structure fields with the read parameters */ + sDate->Year = (uint8_t)((datetmpreg & (RTC_DR_YT | RTC_DR_YU)) >> RTC_DR_YU_Pos); + sDate->Month = (uint8_t)((datetmpreg & (RTC_DR_MT | RTC_DR_MU)) >> RTC_DR_MU_Pos); + sDate->Date = (uint8_t)((datetmpreg & (RTC_DR_DT | RTC_DR_DU)) >> RTC_DR_DU_Pos); + sDate->WeekDay = (uint8_t)((datetmpreg & (RTC_DR_WDU)) >> RTC_DR_WDU_Pos); + + /* Check the input parameters format */ + if (Format == RTC_FORMAT_BIN) + { + /* Convert the date structure parameters to Binary format */ + sDate->Year = (uint8_t)RTC_Bcd2ToByte(sDate->Year); + sDate->Month = (uint8_t)RTC_Bcd2ToByte(sDate->Month); + sDate->Date = (uint8_t)RTC_Bcd2ToByte(sDate->Date); + } + return HAL_OK; +} + +/** + * @brief Daylight Saving Time, add one hour to the calendar in one + * single operation without going through the initialization procedure. + * @param hrtc pointer to a RTC_HandleTypeDef structure that contains + * the configuration information for RTC. + * @retval None + */ +void HAL_RTC_DST_Add1Hour(const RTC_HandleTypeDef *hrtc) +{ + UNUSED(hrtc); + __HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); + SET_BIT(RTC->CR, RTC_CR_ADD1H); + __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); +} + +/** + * @brief Daylight Saving Time, subtracts one hour from the calendar in one + * single operation without going through the initialization procedure. + * @param hrtc pointer to a RTC_HandleTypeDef structure that contains + * the configuration information for RTC. + * @retval None + */ +void HAL_RTC_DST_Sub1Hour(const RTC_HandleTypeDef *hrtc) +{ + UNUSED(hrtc); + __HAL_RTC_WRITEPROTECTION_DISABLE(hrtc); + SET_BIT(RTC->CR, RTC_CR_SUB1H); + __HAL_RTC_WRITEPROTECTION_ENABLE(hrtc); +} + +/** + * @brief Daylight Saving Time, sets the store operation bit. + * @note It can be used by the software in order to memorize the DST status. + * @param hrtc pointer to a RTC_HandleTypeDef structure that contains + * the configuration information for RTC. + * @retval None + */ +void HAL_RTC_DST_SetStoreOperation(const RTC_HandleTypeDef *hrtc) +{ + UNUSED(hrtc); + SET_BIT(RTC->CR, RTC_CR_BKP); +} + +/** + * @brief Daylight Saving Time, clears the store operation bit. + * @param hrtc pointer to a RTC_HandleTypeDef structure that contains + * the configuration information for RTC. + * @retval None + */ +void HAL_RTC_DST_ClearStoreOperation(const RTC_HandleTypeDef *hrtc) +{ + UNUSED(hrtc); + CLEAR_BIT(RTC->CR, RTC_CR_BKP); +} + +/** + * @brief Daylight Saving Time, reads the store operation bit. + * @param hrtc RTC handle + * @retval operation see RTC_StoreOperation_Definitions + */ +uint32_t HAL_RTC_DST_ReadStoreOperation(const RTC_HandleTypeDef *hrtc) +{ + UNUSED(hrtc); + return READ_BIT(RTC->CR, RTC_CR_BKP); +} + +/** + * @} + */ + +/** @addtogroup RTC_Exported_Functions_Group3 + * @brief RTC Alarm functions + * +@verbatim + =============================================================================== + ##### RTC Alarm functions ##### + =============================================================================== + + [..] This section provides functions allowing to configure Alarm feature + +@endverbatim + * @{ + */ +/** + * @brief Set the specified RTC Alarm. + * @param hrtc RTC handle + * @param sAlarm Pointer to Alarm structure + * if Binary mode is RTC_BINARY_ONLY, 3 fields only are used + * sAlarm->AlarmTime.SubSeconds + * sAlarm->AlarmSubSecondMask + * sAlarm->BinaryAutoClr + * @param Format of the entered parameters. + * if Binary mode is RTC_BINARY_ONLY, this parameter is not used + * else this parameter can be one of the following values + * @arg RTC_FORMAT_BIN: Binary format + * @arg RTC_FORMAT_BCD: BCD format + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTC_SetAlarm(RTC_HandleTypeDef *hrtc, RTC_AlarmTypeDef *sAlarm, uint32_t Format) +{ + uint32_t tmpreg = 0; + uint32_t binaryMode; + + /* Process Locked */ + __HAL_LOCK(hrtc); + + hrtc->State = HAL_RTC_STATE_BUSY; + +#ifdef USE_FULL_ASSERT + /* Check the parameters depending of the Binary mode (32-bit free-running counter configuration). */ + if (READ_BIT(RTC->ICSR, RTC_ICSR_BIN) == RTC_BINARY_NONE) + { + assert_param(IS_RTC_FORMAT(Format)); + assert_param(IS_RTC_ALARM(sAlarm->Alarm)); + assert_param(IS_RTC_ALARM_MASK(sAlarm->AlarmMask)); + assert_param(IS_RTC_ALARM_DATE_WEEKDAY_SEL(sAlarm->AlarmDateWeekDaySel)); + assert_param(IS_RTC_ALARM_SUB_SECOND_VALUE(sAlarm->AlarmTime.SubSeconds)); + assert_param(IS_RTC_ALARM_SUB_SECOND_MASK(sAlarm->AlarmSubSecondMask)); + } + else if (READ_BIT(RTC->ICSR, RTC_ICSR_BIN) == RTC_BINARY_ONLY) + { + assert_param(IS_RTC_ALARM_SUB_SECOND_BINARY_MASK(sAlarm->AlarmSubSecondMask)); + assert_param(IS_RTC_ALARMSUBSECONDBIN_AUTOCLR(sAlarm->BinaryAutoClr)); + } + else /* RTC_BINARY_MIX */ + { + assert_param(IS_RTC_FORMAT(Format)); + assert_param(IS_RTC_ALARM(sAlarm->Alarm)); + assert_param(IS_RTC_ALARM_MASK(sAlarm->AlarmMask)); + assert_param(IS_RTC_ALARM_DATE_WEEKDAY_SEL(sAlarm->AlarmDateWeekDaySel)); + /* In Binary Mix Mode, the RTC can not generate an alarm on a match involving all calendar items + + the upper SSR bits */ + assert_param((sAlarm->AlarmSubSecondMask >> RTC_ALRMASSR_MASKSS_Pos) <= \ + (8U + (READ_BIT(RTC->ICSR, RTC_ICSR_BCDU) >> RTC_ICSR_BCDU_Pos))); + } +#endif /* USE_FULL_ASSERT */ + + /* Get Binary mode (32-bit free-running counter configuration) */ + binaryMode = READ_BIT(RTC->ICSR, RTC_ICSR_BIN); + + if (binaryMode != RTC_BINARY_ONLY) + { + if (Format == RTC_FORMAT_BIN) + { + if (READ_BIT(RTC->CR, RTC_CR_FMT) != 0U) + { + assert_param(IS_RTC_HOUR12(sAlarm->AlarmTime.Hours)); + assert_param(IS_RTC_HOURFORMAT12(sAlarm->AlarmTime.TimeFormat)); + } + else + { + sAlarm->AlarmTime.TimeFormat = 0x00U; + assert_param(IS_RTC_HOUR24(sAlarm->AlarmTime.Hours)); + } + assert_param(IS_RTC_MINUTES(sAlarm->AlarmTime.Minutes)); + assert_param(IS_RTC_SECONDS(sAlarm->AlarmTime.Seconds)); + + if (sAlarm->AlarmDateWeekDaySel == RTC_ALARMDATEWEEKDAYSEL_DATE) + { + assert_param(IS_RTC_ALARM_DATE_WEEKDAY_DATE(sAlarm->AlarmDateWeekDay)); + } + else + { + assert_param(IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(sAlarm->AlarmDateWeekDay)); + } + tmpreg = (((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmTime.Hours) << RTC_ALRMAR_HU_Pos) | \ + ((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmTime.Minutes) << RTC_ALRMAR_MNU_Pos) | \ + ((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmTime.Seconds) << RTC_ALRMAR_SU_Pos) | \ + ((uint32_t)(sAlarm->AlarmTime.TimeFormat) << RTC_ALRMAR_PM_Pos) | \ + ((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmDateWeekDay) << RTC_ALRMAR_DU_Pos) | \ + ((uint32_t)sAlarm->AlarmDateWeekDaySel) | \ + ((uint32_t)sAlarm->AlarmMask)); + } + else /* format BCD */ + { + if (READ_BIT(RTC->CR, RTC_CR_FMT) != 0U) + { + assert_param(IS_RTC_HOUR12(RTC_Bcd2ToByte(sAlarm->AlarmTime.Hours))); + assert_param(IS_RTC_HOURFORMAT12(sAlarm->AlarmTime.TimeFormat)); + } + else + { + sAlarm->AlarmTime.TimeFormat = 0x00U; + assert_param(IS_RTC_HOUR24(RTC_Bcd2ToByte(sAlarm->AlarmTime.Hours))); + } + + assert_param(IS_RTC_MINUTES(RTC_Bcd2ToByte(sAlarm->AlarmTime.Minutes))); + assert_param(IS_RTC_SECONDS(RTC_Bcd2ToByte(sAlarm->AlarmTime.Seconds))); + +#ifdef USE_FULL_ASSERT + if (sAlarm->AlarmDateWeekDaySel == RTC_ALARMDATEWEEKDAYSEL_DATE) + { + assert_param(IS_RTC_ALARM_DATE_WEEKDAY_DATE(RTC_Bcd2ToByte(sAlarm->AlarmDateWeekDay))); + } + else + { + assert_param(IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(RTC_Bcd2ToByte(sAlarm->AlarmDateWeekDay))); + } + +#endif /* USE_FULL_ASSERT */ + tmpreg = (((uint32_t)(sAlarm->AlarmTime.Hours) << RTC_ALRMAR_HU_Pos) | \ + ((uint32_t)(sAlarm->AlarmTime.Minutes) << RTC_ALRMAR_MNU_Pos) | \ + ((uint32_t)(sAlarm->AlarmTime.Seconds) << RTC_ALRMAR_SU_Pos) | \ + ((uint32_t)(sAlarm->AlarmTime.TimeFormat) << RTC_ALRMAR_PM_Pos) | \ + ((uint32_t)(sAlarm->AlarmDateWeekDay) << RTC_ALRMAR_DU_Pos) | \ + ((uint32_t)sAlarm->AlarmDateWeekDaySel) | \ + ((uint32_t)sAlarm->AlarmMask)); + } + } + + /* Configure the Alarm register */ + if (sAlarm->Alarm == RTC_ALARM_A) + { + /* Disable the Alarm A interrupt */ + /* In case of interrupt mode is used, the interrupt source must disabled */ + CLEAR_BIT(RTC->CR, (RTC_CR_ALRAE | RTC_CR_ALRAIE)); + /* Clear flag alarm A */ + WRITE_REG(RTC->SCR, RTC_SCR_CALRAF); + + if (binaryMode == RTC_BINARY_ONLY) + { + WRITE_REG(RTC->ALRMASSR, sAlarm->AlarmSubSecondMask | sAlarm->BinaryAutoClr); + } + else + { + WRITE_REG(RTC->ALRMAR, tmpreg); + WRITE_REG(RTC->ALRMASSR, sAlarm->AlarmSubSecondMask); + } + + WRITE_REG(RTC->ALRABINR, sAlarm->AlarmTime.SubSeconds); + + if (sAlarm->FlagAutoClr == ALARM_FLAG_AUTOCLR_ENABLE) + { + /* Configure the Alarm A output clear */ + SET_BIT(RTC->CR, RTC_CR_ALRAFCLR); + } + else + { + /* Disable the Alarm A output clear */ + CLEAR_BIT(RTC->CR, RTC_CR_ALRAFCLR); + } + /* Configure the Alarm state: Enable Alarm */ + SET_BIT(RTC->CR, RTC_CR_ALRAE); + } + else + { + /* Disable the Alarm B interrupt */ + /* In case of interrupt mode is used, the interrupt source must disabled */ + CLEAR_BIT(RTC->CR, (RTC_CR_ALRBE | RTC_CR_ALRBIE)); + /* Clear flag alarm B */ + WRITE_REG(RTC->SCR, RTC_SCR_CALRBF); + + if (binaryMode == RTC_BINARY_ONLY) + { + WRITE_REG(RTC->ALRMBSSR, sAlarm->AlarmSubSecondMask | sAlarm->BinaryAutoClr); + } + else + { + WRITE_REG(RTC->ALRMBR, tmpreg); + WRITE_REG(RTC->ALRMBSSR, sAlarm->AlarmSubSecondMask); + } + + WRITE_REG(RTC->ALRBBINR, sAlarm->AlarmTime.SubSeconds); + if (sAlarm->FlagAutoClr == ALARM_FLAG_AUTOCLR_ENABLE) + { + /* Configure the Alarm B output clear */ + SET_BIT(RTC->CR, RTC_CR_ALRBFCLR); + } + else + { + /* Disable the Alarm B output clear */ + CLEAR_BIT(RTC->CR, RTC_CR_ALRBFCLR); + } + /* Configure the Alarm state: Enable Alarm */ + SET_BIT(RTC->CR, RTC_CR_ALRBE); + } + + /* Change RTC state */ + hrtc->State = HAL_RTC_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hrtc); + + return HAL_OK; +} + +/** + * @brief Set the specified RTC Alarm with Interrupt. + * @param hrtc RTC handle + * @param sAlarm Pointer to Alarm structure + * if Binary mode is RTC_BINARY_ONLY, 3 fields only are used + * sAlarm->AlarmTime.SubSeconds + * sAlarm->AlarmSubSecondMask + * sAlarm->BinaryAutoClr + * @param Format Specifies the format of the entered parameters. + * if Binary mode is RTC_BINARY_ONLY, this parameter is not used + * else this parameter can be one of the following values + * @arg RTC_FORMAT_BIN: Binary format + * @arg RTC_FORMAT_BCD: BCD format + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTC_SetAlarm_IT(RTC_HandleTypeDef *hrtc, RTC_AlarmTypeDef *sAlarm, uint32_t Format) +{ + uint32_t tmpreg = 0; + uint32_t binaryMode; + + /* Process Locked */ + __HAL_LOCK(hrtc); + + hrtc->State = HAL_RTC_STATE_BUSY; + +#ifdef USE_FULL_ASSERT + /* Check the parameters depending of the Binary mode (32-bit free-running counter configuration). */ + if (READ_BIT(RTC->ICSR, RTC_ICSR_BIN) == RTC_BINARY_NONE) + { + assert_param(IS_RTC_FORMAT(Format)); + assert_param(IS_RTC_ALARM(sAlarm->Alarm)); + assert_param(IS_RTC_ALARM_MASK(sAlarm->AlarmMask)); + assert_param(IS_RTC_ALARM_DATE_WEEKDAY_SEL(sAlarm->AlarmDateWeekDaySel)); + assert_param(IS_RTC_ALARM_SUB_SECOND_VALUE(sAlarm->AlarmTime.SubSeconds)); + assert_param(IS_RTC_ALARM_SUB_SECOND_MASK(sAlarm->AlarmSubSecondMask)); + } + else if (READ_BIT(RTC->ICSR, RTC_ICSR_BIN) == RTC_BINARY_ONLY) + { + assert_param(IS_RTC_ALARM_SUB_SECOND_BINARY_MASK(sAlarm->AlarmSubSecondMask)); + assert_param(IS_RTC_ALARMSUBSECONDBIN_AUTOCLR(sAlarm->BinaryAutoClr)); + } + else /* RTC_BINARY_MIX */ + { + assert_param(IS_RTC_FORMAT(Format)); + assert_param(IS_RTC_ALARM(sAlarm->Alarm)); + assert_param(IS_RTC_ALARM_MASK(sAlarm->AlarmMask)); + assert_param(IS_RTC_ALARM_DATE_WEEKDAY_SEL(sAlarm->AlarmDateWeekDaySel)); + /* In Binary Mix Mode, the RTC can not generate an alarm on a match involving all calendar items + + the upper SSR bits */ + assert_param((sAlarm->AlarmSubSecondMask >> RTC_ALRMASSR_MASKSS_Pos) <= \ + (8U + (READ_BIT(RTC->ICSR, RTC_ICSR_BCDU) >> RTC_ICSR_BCDU_Pos))); + } +#endif /* USE_FULL_ASSERT */ + + /* Get Binary mode (32-bit free-running counter configuration) */ + binaryMode = READ_BIT(RTC->ICSR, RTC_ICSR_BIN); + + if (binaryMode != RTC_BINARY_ONLY) + { + if (Format == RTC_FORMAT_BIN) + { + if (READ_BIT(RTC->CR, RTC_CR_FMT) != 0U) + { + assert_param(IS_RTC_HOUR12(sAlarm->AlarmTime.Hours)); + assert_param(IS_RTC_HOURFORMAT12(sAlarm->AlarmTime.TimeFormat)); + } + else + { + sAlarm->AlarmTime.TimeFormat = 0x00U; + assert_param(IS_RTC_HOUR24(sAlarm->AlarmTime.Hours)); + } + assert_param(IS_RTC_MINUTES(sAlarm->AlarmTime.Minutes)); + assert_param(IS_RTC_SECONDS(sAlarm->AlarmTime.Seconds)); + + if (sAlarm->AlarmDateWeekDaySel == RTC_ALARMDATEWEEKDAYSEL_DATE) + { + assert_param(IS_RTC_ALARM_DATE_WEEKDAY_DATE(sAlarm->AlarmDateWeekDay)); + } + else + { + assert_param(IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(sAlarm->AlarmDateWeekDay)); + } + tmpreg = (((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmTime.Hours) << RTC_ALRMAR_HU_Pos) | \ + ((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmTime.Minutes) << RTC_ALRMAR_MNU_Pos) | \ + ((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmTime.Seconds) << RTC_ALRMAR_SU_Pos) | \ + ((uint32_t)(sAlarm->AlarmTime.TimeFormat) << RTC_ALRMAR_PM_Pos) | \ + ((uint32_t)RTC_ByteToBcd2(sAlarm->AlarmDateWeekDay) << RTC_ALRMAR_DU_Pos) | \ + ((uint32_t)sAlarm->AlarmDateWeekDaySel) | \ + ((uint32_t)sAlarm->AlarmMask)); + } + else /* Format BCD */ + { + if (READ_BIT(RTC->CR, RTC_CR_FMT) != 0U) + { + assert_param(IS_RTC_HOUR12(RTC_Bcd2ToByte(sAlarm->AlarmTime.Hours))); + assert_param(IS_RTC_HOURFORMAT12(sAlarm->AlarmTime.TimeFormat)); + } + else + { + sAlarm->AlarmTime.TimeFormat = 0x00U; + assert_param(IS_RTC_HOUR24(RTC_Bcd2ToByte(sAlarm->AlarmTime.Hours))); + } + + assert_param(IS_RTC_MINUTES(RTC_Bcd2ToByte(sAlarm->AlarmTime.Minutes))); + assert_param(IS_RTC_SECONDS(RTC_Bcd2ToByte(sAlarm->AlarmTime.Seconds))); + +#ifdef USE_FULL_ASSERT + if (sAlarm->AlarmDateWeekDaySel == RTC_ALARMDATEWEEKDAYSEL_DATE) + { + assert_param(IS_RTC_ALARM_DATE_WEEKDAY_DATE(RTC_Bcd2ToByte(sAlarm->AlarmDateWeekDay))); + } + else + { + assert_param(IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(RTC_Bcd2ToByte(sAlarm->AlarmDateWeekDay))); + } + +#endif /* USE_FULL_ASSERT */ + tmpreg = (((uint32_t)(sAlarm->AlarmTime.Hours) << RTC_ALRMAR_HU_Pos) | \ + ((uint32_t)(sAlarm->AlarmTime.Minutes) << RTC_ALRMAR_MNU_Pos) | \ + ((uint32_t)(sAlarm->AlarmTime.Seconds) << RTC_ALRMAR_SU_Pos) | \ + ((uint32_t)(sAlarm->AlarmTime.TimeFormat) << RTC_ALRMAR_PM_Pos) | \ + ((uint32_t)(sAlarm->AlarmDateWeekDay) << RTC_ALRMAR_DU_Pos) | \ + ((uint32_t)sAlarm->AlarmDateWeekDaySel) | \ + ((uint32_t)sAlarm->AlarmMask)); + + } + } + + /* Configure the Alarm registers */ + if (sAlarm->Alarm == RTC_ALARM_A) + { + /* Disable the Alarm A interrupt */ + CLEAR_BIT(RTC->CR, RTC_CR_ALRAE | RTC_CR_ALRAIE); + /* Clear flag alarm A */ + WRITE_REG(RTC->SCR, RTC_SCR_CALRAF); + + if (binaryMode == RTC_BINARY_ONLY) + { + RTC->ALRMASSR = sAlarm->AlarmSubSecondMask | sAlarm->BinaryAutoClr; + } + else + { + WRITE_REG(RTC->ALRMAR, tmpreg); + WRITE_REG(RTC->ALRMASSR, sAlarm->AlarmSubSecondMask); + } + + WRITE_REG(RTC->ALRABINR, sAlarm->AlarmTime.SubSeconds); + + if (sAlarm->FlagAutoClr == ALARM_FLAG_AUTOCLR_ENABLE) + { + /* Configure the Alarm A output clear */ + SET_BIT(RTC->CR, RTC_CR_ALRAFCLR); + } + else + { + /* Disable the Alarm A output clear*/ + CLEAR_BIT(RTC->CR, RTC_CR_ALRAFCLR); + } + + /* Configure the Alarm interrupt */ + SET_BIT(RTC->CR, RTC_CR_ALRAE | RTC_CR_ALRAIE); + } + else + { + /* Disable the Alarm B interrupt */ + CLEAR_BIT(RTC->CR, RTC_CR_ALRBE | RTC_CR_ALRBIE); + /* Clear flag alarm B */ + WRITE_REG(RTC->SCR, RTC_SCR_CALRBF); + + if (binaryMode == RTC_BINARY_ONLY) + { + WRITE_REG(RTC->ALRMBSSR, sAlarm->AlarmSubSecondMask | sAlarm->BinaryAutoClr); + } + else + { + WRITE_REG(RTC->ALRMBR, tmpreg); + WRITE_REG(RTC->ALRMBSSR, sAlarm->AlarmSubSecondMask); + } + + WRITE_REG(RTC->ALRBBINR, sAlarm->AlarmTime.SubSeconds); + + if (sAlarm->FlagAutoClr == ALARM_FLAG_AUTOCLR_ENABLE) + { + /* Configure the Alarm B Output clear */ + SET_BIT(RTC->CR, RTC_CR_ALRBFCLR); + + } + else + { + /* Disable the Alarm B Output clear */ + CLEAR_BIT(RTC->CR, RTC_CR_ALRBFCLR); + } + + /* Configure the Alarm interrupt */ + SET_BIT(RTC->CR, RTC_CR_ALRBE | RTC_CR_ALRBIE); + } + + hrtc->State = HAL_RTC_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hrtc); + + return HAL_OK; +} + +/** + * @brief Deactivate the specified RTC Alarm. + * @param hrtc RTC handle + * @param Alarm Specifies the Alarm. + * This parameter can be one of the following values: + * @arg RTC_ALARM_A: AlarmA + * @arg RTC_ALARM_B: AlarmB + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTC_DeactivateAlarm(RTC_HandleTypeDef *hrtc, uint32_t Alarm) +{ + /* Check the parameters */ + assert_param(IS_RTC_ALARM(Alarm)); + + /* Process Locked */ + __HAL_LOCK(hrtc); + + hrtc->State = HAL_RTC_STATE_BUSY; + + /* In case of interrupt mode is used, the interrupt source must disabled */ + if (Alarm == RTC_ALARM_A) + { + CLEAR_BIT(RTC->CR, RTC_CR_ALRAE | RTC_CR_ALRAIE); + CLEAR_BIT(RTC->ALRMASSR, RTC_ALRMASSR_SSCLR); + } + else + { + CLEAR_BIT(RTC->CR, RTC_CR_ALRBE | RTC_CR_ALRBIE); + CLEAR_BIT(RTC->ALRMBSSR, RTC_ALRMBSSR_SSCLR); + } + + hrtc->State = HAL_RTC_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hrtc); + + return HAL_OK; +} + +/** + * @brief Get the RTC Alarm value and masks. + * @param hrtc RTC handle + * @param sAlarm Pointer to Date structure + * @param Alarm Specifies the Alarm. + * This parameter can be one of the following values: + * @arg RTC_ALARM_A: AlarmA + * @arg RTC_ALARM_B: AlarmB + * @param Format Specifies the format of the entered parameters. + * This parameter can be one of the following values: + * @arg RTC_FORMAT_BIN: Binary format + * @arg RTC_FORMAT_BCD: BCD format + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTC_GetAlarm(const RTC_HandleTypeDef *hrtc, RTC_AlarmTypeDef *sAlarm, uint32_t Alarm, + uint32_t Format) +{ + uint32_t tmpreg; + uint32_t subsecondtmpreg; + + UNUSED(hrtc); + /* Check the parameters */ + assert_param(IS_RTC_FORMAT(Format)); + assert_param(IS_RTC_ALARM(Alarm)); + + if (Alarm == RTC_ALARM_A) + { + /* AlarmA */ + sAlarm->Alarm = RTC_ALARM_A; + + tmpreg = READ_REG(RTC->ALRMAR); + subsecondtmpreg = (uint32_t)(READ_REG(RTC->ALRMASSR) & RTC_ALRMASSR_SS); + + /* Fill the structure with the read parameters */ + sAlarm->AlarmTime.Hours = (uint8_t)((tmpreg & (RTC_ALRMAR_HT | RTC_ALRMAR_HU)) >> RTC_ALRMAR_HU_Pos); + sAlarm->AlarmTime.Minutes = (uint8_t)((tmpreg & (RTC_ALRMAR_MNT | RTC_ALRMAR_MNU)) >> RTC_ALRMAR_MNU_Pos); + sAlarm->AlarmTime.Seconds = (uint8_t)((tmpreg & (RTC_ALRMAR_ST | RTC_ALRMAR_SU)) >> RTC_ALRMAR_SU_Pos); + sAlarm->AlarmTime.TimeFormat = (uint8_t)((tmpreg & RTC_ALRMAR_PM) >> RTC_ALRMAR_PM_Pos); + sAlarm->AlarmTime.SubSeconds = (uint32_t) subsecondtmpreg; + sAlarm->AlarmDateWeekDay = (uint8_t)((tmpreg & (RTC_ALRMAR_DT | RTC_ALRMAR_DU)) >> RTC_ALRMAR_DU_Pos); + sAlarm->AlarmDateWeekDaySel = (uint32_t)(tmpreg & RTC_ALRMAR_WDSEL); + sAlarm->AlarmMask = (uint32_t)(tmpreg & RTC_ALARMMASK_ALL); + } + else + { + sAlarm->Alarm = RTC_ALARM_B; + + tmpreg = READ_REG(RTC->ALRMBR); + subsecondtmpreg = (uint32_t)(READ_REG(RTC->ALRMBSSR) & RTC_ALRMBSSR_SS); + + /* Fill the structure with the read parameters */ + sAlarm->AlarmTime.Hours = (uint8_t)((tmpreg & (RTC_ALRMBR_HT | RTC_ALRMBR_HU)) >> RTC_ALRMBR_HU_Pos); + sAlarm->AlarmTime.Minutes = (uint8_t)((tmpreg & (RTC_ALRMBR_MNT | RTC_ALRMBR_MNU)) >> RTC_ALRMBR_MNU_Pos); + sAlarm->AlarmTime.Seconds = (uint8_t)((tmpreg & (RTC_ALRMBR_ST | RTC_ALRMBR_SU)) >> RTC_ALRMBR_SU_Pos); + sAlarm->AlarmTime.TimeFormat = (uint8_t)((tmpreg & RTC_ALRMBR_PM) >> RTC_ALRMBR_PM_Pos); + sAlarm->AlarmTime.SubSeconds = (uint32_t) subsecondtmpreg; + sAlarm->AlarmDateWeekDay = (uint8_t)((tmpreg & (RTC_ALRMBR_DT | RTC_ALRMBR_DU)) >> RTC_ALRMBR_DU_Pos); + sAlarm->AlarmDateWeekDaySel = (uint32_t)(tmpreg & RTC_ALRMBR_WDSEL); + sAlarm->AlarmMask = (uint32_t)(tmpreg & RTC_ALARMMASK_ALL); + } + + if (Format == RTC_FORMAT_BIN) + { + sAlarm->AlarmTime.Hours = RTC_Bcd2ToByte(sAlarm->AlarmTime.Hours); + sAlarm->AlarmTime.Minutes = RTC_Bcd2ToByte(sAlarm->AlarmTime.Minutes); + sAlarm->AlarmTime.Seconds = RTC_Bcd2ToByte(sAlarm->AlarmTime.Seconds); + sAlarm->AlarmDateWeekDay = RTC_Bcd2ToByte(sAlarm->AlarmDateWeekDay); + } + + return HAL_OK; +} + +/** + * @brief Handle Alarm interrupt request. + * @param hrtc RTC handle + * @retval None + */ +void HAL_RTC_AlarmIRQHandler(RTC_HandleTypeDef *hrtc) +{ + /* Get interrupt status */ + uint32_t tmp = READ_REG(RTC->MISR); + + if ((tmp & RTC_MISR_ALRAMF) != 0U) + { + /* Clear the AlarmA interrupt pending bit */ + WRITE_REG(RTC->SCR, RTC_SCR_CALRAF); + +#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1) + /* Call Compare Match registered Callback */ + hrtc->AlarmAEventCallback(hrtc); +#else + HAL_RTC_AlarmAEventCallback(hrtc); +#endif /* USE_HAL_RTC_REGISTER_CALLBACKS */ + } + + if ((tmp & RTC_MISR_ALRBMF) != 0U) + { + /* Clear the AlarmB interrupt pending bit */ + WRITE_REG(RTC->SCR, RTC_SCR_CALRBF); + +#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1) + /* Call Compare Match registered Callback */ + hrtc->AlarmBEventCallback(hrtc); +#else + HAL_RTCEx_AlarmBEventCallback(hrtc); +#endif /* USE_HAL_RTC_REGISTER_CALLBACKS */ + } + + /* Change RTC state */ + hrtc->State = HAL_RTC_STATE_READY; +} + +/** + * @brief Alarm A callback. + * @param hrtc RTC handle + * @retval None + */ +__weak void HAL_RTC_AlarmAEventCallback(RTC_HandleTypeDef *hrtc) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hrtc); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_RTC_AlarmAEventCallback could be implemented in the user file + */ +} + +/** + * @brief Handle AlarmA Polling request. + * @param hrtc RTC handle + * @param Timeout Timeout duration + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTC_PollForAlarmAEvent(RTC_HandleTypeDef *hrtc, uint32_t Timeout) +{ + uint32_t tickstart = HAL_GetTick(); + + while (READ_BIT(RTC->SR, RTC_SR_ALRAF) == 0U) + { + if (Timeout != HAL_MAX_DELAY) + { + if (((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U)) + { + hrtc->State = HAL_RTC_STATE_TIMEOUT; + return HAL_TIMEOUT; + } + } + } + + /* Clear the Alarm interrupt pending bit */ + WRITE_REG(RTC->SCR, RTC_SCR_CALRAF); + + /* Change RTC state */ + hrtc->State = HAL_RTC_STATE_READY; + + return HAL_OK; +} + +/** + * @} + */ + +/** @addtogroup RTC_Exported_Functions_Group4 + * @brief Peripheral Control functions + * +@verbatim + =============================================================================== + ##### Peripheral Control functions ##### + =============================================================================== + [..] + This subsection provides functions allowing to + (+) Wait for RTC Time and Date Synchronization + +@endverbatim + * @{ + */ + +/** + * @brief Wait until the RTC Time and Date registers (RTC_TR and RTC_DR) are + * synchronized with RTC APB clock. + * @note The RTC Resynchronization mode is write protected, use the + * __HAL_RTC_WRITEPROTECTION_DISABLE() before calling this function. + * @note To read the calendar through the shadow registers after Calendar + * initialization, calendar update or after wakeup from low power modes + * the software must first clear the RSF flag. + * The software must then wait until it is set again before reading + * the calendar, which means that the calendar registers have been + * correctly copied into the RTC_TR and RTC_DR shadow registers. + * @param hrtc RTC handle + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RTC_WaitForSynchro(const RTC_HandleTypeDef *hrtc) +{ + uint32_t tickstart; + + UNUSED(hrtc); + /* Clear RSF flag */ + CLEAR_BIT(RTC->ICSR, RTC_ICSR_RSF); + + tickstart = HAL_GetTick(); + + /* Wait the registers to be synchronised */ + while (READ_BIT(RTC->ICSR, RTC_ICSR_RSF) == 0U) + { + if ((HAL_GetTick() - tickstart) > RTC_TIMEOUT_VALUE) + { + return HAL_TIMEOUT; + } + } + + return HAL_OK; +} + +/** + * @} + */ + +/** @addtogroup RTC_Exported_Functions_Group5 + * @brief Peripheral State functions + * +@verbatim + =============================================================================== + ##### Peripheral State functions ##### + =============================================================================== + [..] + This subsection provides functions allowing to + (+) Get RTC state + +@endverbatim + * @{ + */ +/** + * @brief Return the RTC handle state. + * @param hrtc RTC handle + * @retval HAL state + */ +HAL_RTCStateTypeDef HAL_RTC_GetState(const RTC_HandleTypeDef *hrtc) +{ + /* Return RTC handle state */ + return hrtc->State; +} + +/** + * @} + */ +/** + * @} + */ + +/** @addtogroup RTC_Private_Functions + * @{ + */ +/** + * @brief Enter the RTC Initialization mode. + * @note The RTC Initialization mode is write protected, use the + * __HAL_RTC_WRITEPROTECTION_DISABLE() before calling this function. + * @param hrtc RTC handle + * @retval HAL status + */ +HAL_StatusTypeDef RTC_EnterInitMode(const RTC_HandleTypeDef *hrtc) +{ + uint32_t tickstart; + + UNUSED(hrtc); + /* Check if the Initialization mode is set */ + if (READ_BIT(RTC->ICSR, RTC_ICSR_INITF) == 0U) + { + /* Set the Initialization mode */ + SET_BIT(RTC->ICSR, RTC_ICSR_INIT); + + tickstart = HAL_GetTick(); + /* Wait till RTC is in INIT state and if Time out is reached exit */ + while (READ_BIT(RTC->ICSR, RTC_ICSR_INITF) == 0U) + { + if ((HAL_GetTick() - tickstart) > RTC_TIMEOUT_VALUE) + { + return HAL_TIMEOUT; + } + } + } + + return HAL_OK; +} + +/** + * @brief Exit the RTC Initialization mode. + * @param hrtc RTC handle + * @retval HAL status + */ +HAL_StatusTypeDef RTC_ExitInitMode(RTC_HandleTypeDef *hrtc) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Exit Initialization mode */ + CLEAR_BIT(RTC->ICSR, RTC_ICSR_INIT); + + /* If CR_BYPSHAD bit = 0, wait for synchro */ + if (READ_BIT(RTC->CR, RTC_CR_BYPSHAD) == 0U) + { + if (HAL_RTC_WaitForSynchro(hrtc) != HAL_OK) + { + /* Change RTC state */ + hrtc->State = HAL_RTC_STATE_TIMEOUT; + status = HAL_TIMEOUT; + } + } + else /* WA 2.9.6 Calendar initialization may fail in case of consecutive INIT mode entry. */ + { + /* Clear BYPSHAD bit */ + CLEAR_BIT(RTC->CR, RTC_CR_BYPSHAD); + if (HAL_RTC_WaitForSynchro(hrtc) != HAL_OK) + { + /* Change RTC state */ + hrtc->State = HAL_RTC_STATE_TIMEOUT; + status = HAL_TIMEOUT; + } + /* Restore BYPSHAD bit */ + SET_BIT(RTC->CR, RTC_CR_BYPSHAD); + } + return status; +} +/** + * @brief Convert a 2 digit decimal to BCD format. + * @param Value Byte to be converted + * @retval Converted byte + */ +uint8_t RTC_ByteToBcd2(uint8_t Value) +{ + uint32_t bcdhigh = 0U; + uint8_t tmp_Value = Value; + + while (tmp_Value >= 10U) + { + bcdhigh++; + tmp_Value -= 10U; + } + + return ((uint8_t)(bcdhigh << 4U) | tmp_Value); +} + +/** + * @brief Convert from 2 digit BCD to Binary. + * @param Value BCD value to be converted + * @retval Converted word + */ +uint8_t RTC_Bcd2ToByte(uint8_t Value) +{ + uint32_t tmp; + tmp = (((uint32_t)Value & 0xF0U) >> 4) * 10U; + return (uint8_t)(tmp + ((uint32_t)Value & 0x0FU)); +} + +/** + * @} + */ + +#endif /* HAL_RTC_MODULE_ENABLED */ +/** + * @} + */ + +/** + * @} + */ |