WebSVN – AFRtranscoder – Blame – /trunk/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rtc_ex.c

Rev	Author	Line No.	Line
2	mjames	1	/**
		2	******************************************************************************
		3	* @file stm32f1xx_hal_rtc_ex.c
		4	* @author MCD Application Team
		5	* @brief Extended RTC HAL module driver.
		6	* This file provides firmware functions to manage the following
		7	* functionalities of the Real Time Clock (RTC) Extension peripheral:
		8	* + RTC Tamper functions
		9	* + Extension Control functions
		10	* + Extension RTC features functions
		11	*
		12	******************************************************************************
		13	* @attention
		14	*
		15	* Copyright (c) 2016 STMicroelectronics.
		16	* All rights reserved.
		17	*
		18	* This software is licensed under terms that can be found in the LICENSE file
		19	* in the root directory of this software component.
		20	* If no LICENSE file comes with this software, it is provided AS-IS.
		21	*
		22	******************************************************************************
		23	*/
		24
		25	/* Includes ------------------------------------------------------------------*/
		26	#include "stm32f1xx_hal.h"
		27
		28	/** @addtogroup STM32F1xx_HAL_Driver
		29	* @{
		30	*/
		31
		32	#ifdef HAL_RTC_MODULE_ENABLED
		33
		34	/** @defgroup RTCEx RTCEx
		35	* @brief RTC Extended HAL module driver
		36	* @{
		37	*/
		38
		39	/* Private typedef -----------------------------------------------------------*/
		40	/* Private define ------------------------------------------------------------*/
		41	/* Private macro -------------------------------------------------------------*/
		42	/** @defgroup RTCEx_Private_Macros RTCEx Private Macros
		43	* @{
		44	*/
		45	/**
		46	* @}
		47	*/
		48
		49	/* Private variables ---------------------------------------------------------*/
		50	/* Private function prototypes -----------------------------------------------*/
		51	/* Private functions ---------------------------------------------------------*/
		52
		53	/** @defgroup RTCEx_Exported_Functions RTCEx Exported Functions
		54	* @{
		55	*/
		56
		57	/** @defgroup RTCEx_Exported_Functions_Group1 RTC Tamper functions
		58	* @brief RTC Tamper functions
		59	*
		60	@verbatim
		61	===============================================================================
		62	##### RTC Tamper functions #####
		63	===============================================================================
		64
		65	[..] This section provides functions allowing to configure Tamper feature
		66
		67	@endverbatim
		68	* @{
		69	*/
		70
		71	/**
		72	* @brief Sets Tamper
		73	* @note By calling this API we disable the tamper interrupt for all tampers.
		74	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
		75	* the configuration information for RTC.
		76	* @param sTamper: Pointer to Tamper Structure.
		77	* @note Tamper can be enabled only if ASOE and CCO bit are reset
		78	* @retval HAL status
		79	*/
		80	HAL_StatusTypeDef HAL_RTCEx_SetTamper(RTC_HandleTypeDef hrtc, RTC_TamperTypeDef sTamper)
		81	{
		82	/* Check input parameters */
		83	if ((hrtc == NULL) \|\| (sTamper == NULL))
		84	{
		85	return HAL_ERROR;
		86	}
		87
		88	/* Check the parameters */
		89	assert_param(IS_RTC_TAMPER(sTamper->Tamper));
		90	assert_param(IS_RTC_TAMPER_TRIGGER(sTamper->Trigger));
		91
		92	/* Process Locked */
		93	__HAL_LOCK(hrtc);
		94
		95	hrtc->State = HAL_RTC_STATE_BUSY;
		96
		97	if (HAL_IS_BIT_SET(BKP->RTCCR, (BKP_RTCCR_CCO \| BKP_RTCCR_ASOE)))
		98	{
		99	hrtc->State = HAL_RTC_STATE_ERROR;
		100
		101	/* Process Unlocked */
		102	__HAL_UNLOCK(hrtc);
		103
		104	return HAL_ERROR;
		105	}
		106
		107	MODIFY_REG(BKP->CR, (BKP_CR_TPE \| BKP_CR_TPAL), (sTamper->Tamper \| (sTamper->Trigger)));
		108
		109	hrtc->State = HAL_RTC_STATE_READY;
		110
		111	/* Process Unlocked */
		112	__HAL_UNLOCK(hrtc);
		113
		114	return HAL_OK;
		115	}
		116
		117	/**
		118	* @brief Sets Tamper with interrupt.
		119	* @note By calling this API we force the tamper interrupt for all tampers.
		120	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
		121	* the configuration information for RTC.
		122	* @param sTamper: Pointer to RTC Tamper.
		123	* @note Tamper can be enabled only if ASOE and CCO bit are reset
		124	* @retval HAL status
		125	*/
		126	HAL_StatusTypeDef HAL_RTCEx_SetTamper_IT(RTC_HandleTypeDef hrtc, RTC_TamperTypeDef sTamper)
		127	{
		128	/* Check input parameters */
		129	if ((hrtc == NULL) \|\| (sTamper == NULL))
		130	{
		131	return HAL_ERROR;
		132	}
		133
		134	/* Check the parameters */
		135	assert_param(IS_RTC_TAMPER(sTamper->Tamper));
		136	assert_param(IS_RTC_TAMPER_TRIGGER(sTamper->Trigger));
		137
		138	/* Process Locked */
		139	__HAL_LOCK(hrtc);
		140
		141	hrtc->State = HAL_RTC_STATE_BUSY;
		142
		143	if (HAL_IS_BIT_SET(BKP->RTCCR, (BKP_RTCCR_CCO \| BKP_RTCCR_ASOE)))
		144	{
		145	hrtc->State = HAL_RTC_STATE_ERROR;
		146
		147	/* Process Unlocked */
		148	__HAL_UNLOCK(hrtc);
		149
		150	return HAL_ERROR;
		151	}
		152
		153	MODIFY_REG(BKP->CR, (BKP_CR_TPE \| BKP_CR_TPAL), (sTamper->Tamper \| (sTamper->Trigger)));
		154
		155	/* Configure the Tamper Interrupt in the BKP->CSR */
		156	__HAL_RTC_TAMPER_ENABLE_IT(hrtc, RTC_IT_TAMP1);
		157
		158	hrtc->State = HAL_RTC_STATE_READY;
		159
		160	/* Process Unlocked */
		161	__HAL_UNLOCK(hrtc);
		162
		163	return HAL_OK;
		164	}
		165
		166	/**
		167	* @brief Deactivates Tamper.
		168	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
		169	* the configuration information for RTC.
		170	* @param Tamper: Selected tamper pin.
		171	* This parameter can be a value of @ref RTCEx_Tamper_Pins_Definitions
		172	* @retval HAL status
		173	*/
		174	HAL_StatusTypeDef HAL_RTCEx_DeactivateTamper(RTC_HandleTypeDef *hrtc, uint32_t Tamper)
		175	{
		176	/* Check input parameters */
		177	if (hrtc == NULL)
		178	{
		179	return HAL_ERROR;
		180	}
		181	/* Prevent unused argument(s) compilation warning */
		182	UNUSED(Tamper);
		183
		184	assert_param(IS_RTC_TAMPER(Tamper));
		185
		186	/* Process Locked */
		187	__HAL_LOCK(hrtc);
		188
		189	hrtc->State = HAL_RTC_STATE_BUSY;
		190
		191	/* Disable the selected Tamper pin */
		192	CLEAR_BIT(BKP->CR, BKP_CR_TPE);
		193
		194	/* Disable the Tamper Interrupt in the BKP->CSR */
		195	/* Configure the Tamper Interrupt in the BKP->CSR */
		196	__HAL_RTC_TAMPER_DISABLE_IT(hrtc, RTC_IT_TAMP1);
		197
		198	/* Clear the Tamper interrupt pending bit */
		199	__HAL_RTC_TAMPER_CLEAR_FLAG(hrtc, RTC_FLAG_TAMP1F);
		200	SET_BIT(BKP->CSR, BKP_CSR_CTE);
		201
		202	hrtc->State = HAL_RTC_STATE_READY;
		203
		204	/* Process Unlocked */
		205	__HAL_UNLOCK(hrtc);
		206
		207	return HAL_OK;
		208	}
		209
		210	/**
		211	* @brief This function handles Tamper interrupt request.
		212	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
		213	* the configuration information for RTC.
		214	* @retval None
		215	*/
		216	void HAL_RTCEx_TamperIRQHandler(RTC_HandleTypeDef *hrtc)
		217	{
		218	/* Get the status of the Interrupt */
		219	if (__HAL_RTC_TAMPER_GET_IT_SOURCE(hrtc, RTC_IT_TAMP1))
		220	{
		221	/* Get the TAMPER Interrupt enable bit and pending bit */
		222	if (__HAL_RTC_TAMPER_GET_FLAG(hrtc, RTC_FLAG_TAMP1F) != (uint32_t)RESET)
		223	{
		224	/* Tamper callback */
		225	#if (USE_HAL_RTC_REGISTER_CALLBACKS == 1)
		226	hrtc->Tamper1EventCallback(hrtc);
		227	#else
		228	HAL_RTCEx_Tamper1EventCallback(hrtc);
		229	#endif /* USE_HAL_RTC_REGISTER_CALLBACKS */
		230
		231	/* Clear the Tamper interrupt pending bit */
		232	__HAL_RTC_TAMPER_CLEAR_FLAG(hrtc, RTC_FLAG_TAMP1F);
		233	}
		234	}
		235
		236	/* Change RTC state */
		237	hrtc->State = HAL_RTC_STATE_READY;
		238	}
		239
		240	/**
		241	* @brief Tamper 1 callback.
		242	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
		243	* the configuration information for RTC.
		244	* @retval None
		245	*/
		246	__weak void HAL_RTCEx_Tamper1EventCallback(RTC_HandleTypeDef *hrtc)
		247	{
		248	/* Prevent unused argument(s) compilation warning */
		249	UNUSED(hrtc);
		250	/* NOTE : This function Should not be modified, when the callback is needed,
		251	the HAL_RTCEx_Tamper1EventCallback could be implemented in the user file
		252	*/
		253	}
		254
		255	/**
		256	* @brief This function handles Tamper1 Polling.
		257	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
		258	* the configuration information for RTC.
		259	* @param Timeout: Timeout duration
		260	* @retval HAL status
		261	*/
		262	HAL_StatusTypeDef HAL_RTCEx_PollForTamper1Event(RTC_HandleTypeDef *hrtc, uint32_t Timeout)
		263	{
		264	uint32_t tickstart = HAL_GetTick();
		265
		266	/* Check input parameters */
		267	if (hrtc == NULL)
		268	{
		269	return HAL_ERROR;
		270	}
		271
		272	/* Get the status of the Interrupt */
		273	while (__HAL_RTC_TAMPER_GET_FLAG(hrtc, RTC_FLAG_TAMP1F) == RESET)
		274	{
		275	if (Timeout != HAL_MAX_DELAY)
		276	{
		277	if ((Timeout == 0U) \|\| ((HAL_GetTick() - tickstart) > Timeout))
		278	{
		279	hrtc->State = HAL_RTC_STATE_TIMEOUT;
		280	return HAL_TIMEOUT;
		281	}
		282	}
		283	}
		284
		285	/* Clear the Tamper Flag */
		286	__HAL_RTC_TAMPER_CLEAR_FLAG(hrtc, RTC_FLAG_TAMP1F);
		287
		288	/* Change RTC state */
		289	hrtc->State = HAL_RTC_STATE_READY;
		290
		291	return HAL_OK;
		292	}
		293
		294	/**
		295	* @}
		296	*/
		297
		298	/** @defgroup RTCEx_Exported_Functions_Group2 RTC Second functions
		299	* @brief RTC Second functions
		300	*
		301	@verbatim
		302	===============================================================================
		303	##### RTC Second functions #####
		304	===============================================================================
		305
		306	[..] This section provides functions implementing second interrupt handlers
		307
		308	@endverbatim
		309	* @{
		310	*/
		311
		312	/**
		313	* @brief Sets Interrupt for second
		314	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
		315	* the configuration information for RTC.
		316	* @retval HAL status
		317	*/
		318	HAL_StatusTypeDef HAL_RTCEx_SetSecond_IT(RTC_HandleTypeDef *hrtc)
		319	{
		320	/* Check input parameters */
		321	if (hrtc == NULL)
		322	{
		323	return HAL_ERROR;
		324	}
		325
		326	/* Process Locked */
		327	__HAL_LOCK(hrtc);
		328
		329	hrtc->State = HAL_RTC_STATE_BUSY;
		330
		331	/* Enable Second interruption */
		332	__HAL_RTC_SECOND_ENABLE_IT(hrtc, RTC_IT_SEC);
		333
		334	hrtc->State = HAL_RTC_STATE_READY;
		335
		336	/* Process Unlocked */
		337	__HAL_UNLOCK(hrtc);
		338
		339	return HAL_OK;
		340	}
		341
		342	/**
		343	* @brief Deactivates Second.
		344	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
		345	* the configuration information for RTC.
		346	* @retval HAL status
		347	*/
		348	HAL_StatusTypeDef HAL_RTCEx_DeactivateSecond(RTC_HandleTypeDef *hrtc)
		349	{
		350	/* Check input parameters */
		351	if (hrtc == NULL)
		352	{
		353	return HAL_ERROR;
		354	}
		355
		356	/* Process Locked */
		357	__HAL_LOCK(hrtc);
		358
		359	hrtc->State = HAL_RTC_STATE_BUSY;
		360
		361	/* Deactivate Second interruption*/
		362	__HAL_RTC_SECOND_DISABLE_IT(hrtc, RTC_IT_SEC);
		363
		364	hrtc->State = HAL_RTC_STATE_READY;
		365
		366	/* Process Unlocked */
		367	__HAL_UNLOCK(hrtc);
		368
		369	return HAL_OK;
		370	}
		371
		372	/**
		373	* @brief This function handles second interrupt request.
		374	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
		375	* the configuration information for RTC.
		376	* @retval None
		377	*/
		378	void HAL_RTCEx_RTCIRQHandler(RTC_HandleTypeDef *hrtc)
		379	{
		380	if (__HAL_RTC_SECOND_GET_IT_SOURCE(hrtc, RTC_IT_SEC))
		381	{
		382	/* Get the status of the Interrupt */
		383	if (__HAL_RTC_SECOND_GET_FLAG(hrtc, RTC_FLAG_SEC))
		384	{
		385	/* Check if Overrun occurred */
		386	if (__HAL_RTC_SECOND_GET_FLAG(hrtc, RTC_FLAG_OW))
		387	{
		388	/* Second error callback */
		389	HAL_RTCEx_RTCEventErrorCallback(hrtc);
		390
		391	/* Clear flag Second */
		392	__HAL_RTC_OVERFLOW_CLEAR_FLAG(hrtc, RTC_FLAG_OW);
		393
		394	/* Change RTC state */
		395	hrtc->State = HAL_RTC_STATE_ERROR;
		396	}
		397	else
		398	{
		399	/* Second callback */
		400	HAL_RTCEx_RTCEventCallback(hrtc);
		401
		402	/* Change RTC state */
		403	hrtc->State = HAL_RTC_STATE_READY;
		404	}
		405
		406	/* Clear flag Second */
		407	__HAL_RTC_SECOND_CLEAR_FLAG(hrtc, RTC_FLAG_SEC);
		408	}
		409	}
		410	}
		411
		412	/**
		413	* @brief Second event callback.
		414	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
		415	* the configuration information for RTC.
		416	* @retval None
		417	*/
		418	__weak void HAL_RTCEx_RTCEventCallback(RTC_HandleTypeDef *hrtc)
		419	{
		420	/* Prevent unused argument(s) compilation warning */
		421	UNUSED(hrtc);
		422	/* NOTE : This function Should not be modified, when the callback is needed,
		423	the HAL_RTCEx_RTCEventCallback could be implemented in the user file
		424	*/
		425	}
		426
		427	/**
		428	* @brief Second event error callback.
		429	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
		430	* the configuration information for RTC.
		431	* @retval None
		432	*/
		433	__weak void HAL_RTCEx_RTCEventErrorCallback(RTC_HandleTypeDef *hrtc)
		434	{
		435	/* Prevent unused argument(s) compilation warning */
		436	UNUSED(hrtc);
		437	/* NOTE : This function Should not be modified, when the callback is needed,
		438	the HAL_RTCEx_RTCEventErrorCallback could be implemented in the user file
		439	*/
		440	}
		441
		442	/**
		443	* @}
		444	*/
		445
		446	/** @defgroup RTCEx_Exported_Functions_Group3 Extended Peripheral Control functions
		447	* @brief Extended Peripheral Control functions
		448	*
		449	@verbatim
		450	===============================================================================
		451	##### Extension Peripheral Control functions #####
		452	===============================================================================
		453	[..]
		454	This subsection provides functions allowing to
		455	(+) Writes a data in a specified RTC Backup data register
		456	(+) Read a data in a specified RTC Backup data register
		457	(+) Sets the Smooth calibration parameters.
		458
		459	@endverbatim
		460	* @{
		461	*/
		462
		463	/**
		464	* @brief Writes a data in a specified RTC Backup data register.
		465	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
		466	* the configuration information for RTC.
		467	* @param BackupRegister: RTC Backup data Register number.
		468	* This parameter can be: RTC_BKP_DRx where x can be from 1 to 10 (or 42) to
		469	* specify the register (depending devices).
		470	* @param Data: Data to be written in the specified RTC Backup data register.
		471	* @retval None
		472	*/
		473	void HAL_RTCEx_BKUPWrite(RTC_HandleTypeDef *hrtc, uint32_t BackupRegister, uint32_t Data)
		474	{
		475	uint32_t tmp = 0U;
		476
		477	/* Prevent unused argument(s) compilation warning */
		478	UNUSED(hrtc);
		479
		480	/* Check the parameters */
		481	assert_param(IS_RTC_BKP(BackupRegister));
		482
		483	tmp = (uint32_t)BKP_BASE;
		484	tmp += (BackupRegister * 4U);
		485
		486	(__IO uint32_t ) tmp = (Data & BKP_DR1_D);
		487	}
		488
		489	/**
		490	* @brief Reads data from the specified RTC Backup data Register.
		491	* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
		492	* the configuration information for RTC.
		493	* @param BackupRegister: RTC Backup data Register number.
		494	* This parameter can be: RTC_BKP_DRx where x can be from 1 to 10 (or 42) to
		495	* specify the register (depending devices).
		496	* @retval Read value
		497	*/
		498	uint32_t HAL_RTCEx_BKUPRead(RTC_HandleTypeDef *hrtc, uint32_t BackupRegister)
		499	{
		500	uint32_t backupregister = 0U;
		501	uint32_t pvalue = 0U;
		502
		503	/* Prevent unused argument(s) compilation warning */
		504	UNUSED(hrtc);
		505
		506	/* Check the parameters */
		507	assert_param(IS_RTC_BKP(BackupRegister));
		508
		509	backupregister = (uint32_t)BKP_BASE;
		510	backupregister += (BackupRegister * 4U);
		511
		512	pvalue = ((__IO uint32_t )(backupregister)) & BKP_DR1_D;
		513
		514	/* Read the specified register */
		515	return pvalue;
		516	}
		517
		518
		519	/**
		520	* @brief Sets the Smooth calibration parameters.
		521	* @param hrtc: RTC handle
		522	* @param SmoothCalibPeriod: Not used (only present for compatibility with another families)
		523	* @param SmoothCalibPlusPulses: Not used (only present for compatibility with another families)
		524	* @param SmouthCalibMinusPulsesValue: specifies the RTC Clock Calibration value.
		525	* This parameter must be a number between 0 and 0x7F.
		526	* @retval HAL status
		527	*/
		528	HAL_StatusTypeDef HAL_RTCEx_SetSmoothCalib(RTC_HandleTypeDef *hrtc, uint32_t SmoothCalibPeriod, uint32_t SmoothCalibPlusPulses, uint32_t SmouthCalibMinusPulsesValue)
		529	{
		530	/* Check input parameters */
		531	if (hrtc == NULL)
		532	{
		533	return HAL_ERROR;
		534	}
		535	/* Prevent unused argument(s) compilation warning */
		536	UNUSED(SmoothCalibPeriod);
		537	UNUSED(SmoothCalibPlusPulses);
		538
		539	/* Check the parameters */
		540	assert_param(IS_RTC_SMOOTH_CALIB_MINUS(SmouthCalibMinusPulsesValue));
		541
		542	/* Process Locked */
		543	__HAL_LOCK(hrtc);
		544
		545	hrtc->State = HAL_RTC_STATE_BUSY;
		546
		547	/* Sets RTC Clock Calibration value.*/
		548	MODIFY_REG(BKP->RTCCR, BKP_RTCCR_CAL, SmouthCalibMinusPulsesValue);
		549
		550	/* Change RTC state */
		551	hrtc->State = HAL_RTC_STATE_READY;
		552
		553	/* Process Unlocked */
		554	__HAL_UNLOCK(hrtc);
		555
		556	return HAL_OK;
		557	}
		558
		559	/**
		560	* @}
		561	*/
		562
		563	/**
		564	* @}
		565	*/
		566
		567	/**
		568	* @}
		569	*/
		570
		571	#endif /* HAL_RTC_MODULE_ENABLED */
		572
		573	/**
		574	* @}
		575	*/

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(root)/trunk/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rtc_ex.c – Rev 2