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File indexing completed on 2025-05-11 08:23:01

0001 /*
0002  * Copyright (c) 2016, Freescale Semiconductor, Inc.
0003  * Copyright 2017-2022, NXP
0004  * All rights reserved.
0005  *
0006  * SPDX-License-Identifier: BSD-3-Clause
0007  */
0008 
0009 #ifndef _FSL_SNVS_LP_H_
0010 #define _FSL_SNVS_LP_H_
0011 
0012 #include "fsl_common.h"
0013 
0014 /*!
0015  * @addtogroup snvs_lp
0016  * @{
0017  */
0018 
0019 /*******************************************************************************
0020  * Definitions
0021  ******************************************************************************/
0022 
0023 /*! @name Driver version */
0024 /*@{*/
0025 #define FSL_SNVS_LP_DRIVER_VERSION (MAKE_VERSION(2, 4, 4)) /*!< Version 2.4.4 */
0026 /*@}*/
0027 
0028 /*! @brief Define of SNVS_LP Zeroizable Master Key registers */
0029 #define SNVS_ZMK_REG_COUNT 8U /* 8 Zeroizable Master Key registers. */
0030 
0031 /*! @brief List of SNVS_LP interrupts */
0032 typedef enum _snvs_lp_srtc_interrupts
0033 {
0034     kSNVS_SRTC_AlarmInterrupt = SNVS_LPCR_LPTA_EN_MASK, /*!< SRTC time alarm.*/
0035 } snvs_lp_srtc_interrupts_t;
0036 
0037 /*! @brief List of SNVS_LP flags */
0038 typedef enum _snvs_lp_srtc_status_flags
0039 {
0040     kSNVS_SRTC_AlarmInterruptFlag = SNVS_LPSR_LPTA_MASK, /*!< SRTC time alarm flag */
0041 } snvs_lp_srtc_status_flags_t;
0042 
0043 #if defined(FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER) && (FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER > 0)
0044 
0045 /*! @brief List of SNVS_LP external tampers */
0046 typedef enum _snvs_lp_external_tamper
0047 {
0048     kSNVS_ExternalTamper1 = 1U,
0049 #if defined(FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER) && (FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER > 1)
0050     kSNVS_ExternalTamper2  = 2U,
0051     kSNVS_ExternalTamper3  = 3U,
0052     kSNVS_ExternalTamper4  = 4U,
0053     kSNVS_ExternalTamper5  = 5U,
0054     kSNVS_ExternalTamper6  = 6U,
0055     kSNVS_ExternalTamper7  = 7U,
0056     kSNVS_ExternalTamper8  = 8U,
0057     kSNVS_ExternalTamper9  = 9U,
0058     kSNVS_ExternalTamper10 = 10U
0059 #endif /* defined(FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER) && (FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER > 1) */
0060 } snvs_lp_external_tamper_t;
0061 
0062 #endif /* defined(FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER) && (FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER > 0) */
0063 
0064 #if defined(FSL_FEATURE_SNVS_HAS_ACTIVE_TAMPERS) && (FSL_FEATURE_SNVS_HAS_ACTIVE_TAMPERS > 0)
0065 /*! @brief List of SNVS_LP active tampers */
0066 typedef enum _snvs_lp_active_tamper
0067 {
0068     kSNVS_ActiveTamper1 = 1U,
0069     kSNVS_ActiveTamper2 = 2U,
0070     kSNVS_ActiveTamper3 = 3U,
0071     kSNVS_ActiveTamper4 = 4U,
0072     kSNVS_ActiveTamper5 = 5U,
0073 } snvs_lp_active_tx_tamper_t;
0074 
0075 /*! @brief List of SNVS_LP external tampers */
0076 typedef enum _snvs_lp_active_clock
0077 {
0078     kSNVS_ActiveTamper16HZ = 0U,
0079     kSNVS_ActiveTamper8HZ  = 1U,
0080     kSNVS_ActiveTamper4HZ  = 2U,
0081     kSNVS_ActiveTamper2HZ  = 3U
0082 } snvs_lp_active_clock_t;
0083 
0084 /*! @brief Structure is used to configure SNVS LP active TX tamper pins */
0085 typedef struct
0086 {
0087     uint16_t polynomial;
0088     uint16_t seed;
0089     snvs_lp_active_clock_t clock;
0090 } tamper_active_tx_config_t;
0091 
0092 /*! @brief Structure is used to configure SNVS LP active RX tamper pins */
0093 typedef struct
0094 {
0095     uint16_t filterenable;
0096     uint8_t filter;
0097     snvs_lp_active_tx_tamper_t activeTamper;
0098 } tamper_active_rx_config_t;
0099 
0100 #endif /* FSL_FEATURE_SNVS_HAS_ACTIVE_TAMPERS */
0101 
0102 /*! @brief Structure is used to configure SNVS LP passive tamper pins */
0103 typedef struct
0104 {
0105     uint8_t polarity;
0106 #if defined(FSL_FEATURE_SNVS_PASSIVE_TAMPER_FILTER) && (FSL_FEATURE_SNVS_PASSIVE_TAMPER_FILTER > 0)
0107     uint8_t filterenable;
0108     uint8_t filter;
0109 #endif /* FSL_FEATURE_SNVS_PASSIVE_TAMPER_FILTER */
0110 } snvs_lp_passive_tamper_t;
0111 
0112 /* define max possible tamper present */
0113 /*! @brief Define of SNVS_LP Max possible tamper */
0114 #if defined(FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER) && (FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER > 1)
0115 #define SNVS_LP_MAX_TAMPER kSNVS_ExternalTamper10
0116 #else
0117 #define SNVS_LP_MAX_TAMPER kSNVS_ExternalTamper1
0118 #endif
0119 
0120 /*! @brief List of SNVS_LP external tampers status */
0121 typedef enum _snvs_lp_external_tamper_status
0122 {
0123     kSNVS_TamperNotDetected = 0U,
0124     kSNVS_TamperDetected    = 1U
0125 } snvs_lp_external_tamper_status_t;
0126 
0127 /*! @brief SNVS_LP external tamper polarity */
0128 typedef enum _snvs_lp_external_tamper_polarity
0129 {
0130     kSNVS_ExternalTamperActiveLow  = 0U,
0131     kSNVS_ExternalTamperActiveHigh = 1U
0132 } snvs_lp_external_tamper_polarity_t;
0133 
0134 /*! @brief Structure is used to hold the date and time */
0135 typedef struct _snvs_lp_srtc_datetime
0136 {
0137     uint16_t year;  /*!< Range from 1970 to 2099.*/
0138     uint8_t month;  /*!< Range from 1 to 12.*/
0139     uint8_t day;    /*!< Range from 1 to 31 (depending on month).*/
0140     uint8_t hour;   /*!< Range from 0 to 23.*/
0141     uint8_t minute; /*!< Range from 0 to 59.*/
0142     uint8_t second; /*!< Range from 0 to 59.*/
0143 } snvs_lp_srtc_datetime_t;
0144 
0145 /*!
0146  * @brief SNVS_LP config structure
0147  *
0148  * This structure holds the configuration settings for the SNVS_LP peripheral. To initialize this
0149  * structure to reasonable defaults, call the SNVS_LP_GetDefaultConfig() function and pass a
0150  * pointer to your config structure instance.
0151  *
0152  * The config struct can be made const so it resides in flash
0153  */
0154 typedef struct _snvs_lp_srtc_config
0155 {
0156     bool srtcCalEnable;    /*!< true: SRTC calibration mechanism is enabled;
0157                                 false: No calibration is used */
0158     uint32_t srtcCalValue; /*!< Defines signed calibration value for SRTC;
0159                                 This is a 5-bit 2's complement value, range from -16 to +15 */
0160 } snvs_lp_srtc_config_t;
0161 
0162 /*!
0163  * @brief SNVS_LP Zeroizable Master Key programming mode.
0164  */
0165 typedef enum _snvs_lp_zmk_program_mode
0166 {
0167     kSNVS_ZMKSoftwareProgram, /*!< Software programming mode. */
0168     kSNVS_ZMKHardwareProgram, /*!< Hardware programming mode. */
0169 } snvs_lp_zmk_program_mode_t;
0170 
0171 /*!
0172  * @brief SNVS_LP Master Key mode.
0173  */
0174 typedef enum _snvs_lp_master_key_mode
0175 {
0176     kSNVS_OTPMK = 0, /*!< One Time Programmable Master Key. */
0177     kSNVS_ZMK   = 2, /*!< Zeroizable Master Key. */
0178     kSNVS_CMK   = 3, /*!< Combined Master Key, it is XOR of OPTMK and ZMK. */
0179 } snvs_lp_master_key_mode_t;
0180 
0181 /*******************************************************************************
0182  * API
0183  ******************************************************************************/
0184 
0185 #if defined(__cplusplus)
0186 extern "C" {
0187 #endif
0188 
0189 /*!
0190  * @name Initialization and deinitialization
0191  * @{
0192  */
0193 
0194 /*!
0195  * @brief Ungates the SNVS clock and configures the peripheral for basic operation.
0196  *
0197  * @note This API should be called at the beginning of the application using the SNVS driver.
0198  *
0199  * @param base   SNVS peripheral base address
0200  */
0201 void SNVS_LP_Init(SNVS_Type *base);
0202 
0203 /*!
0204  * @brief Deinit the SNVS LP section.
0205  *
0206  * @param base SNVS peripheral base address
0207  */
0208 void SNVS_LP_Deinit(SNVS_Type *base);
0209 
0210 /*! @}*/
0211 
0212 /*!
0213  * @brief Ungates the SNVS clock and configures the peripheral for basic operation.
0214  *
0215  * @note This API should be called at the beginning of the application using the SNVS driver.
0216  *
0217  * @param base   SNVS peripheral base address
0218  * @param config Pointer to the user's SNVS configuration structure.
0219  */
0220 void SNVS_LP_SRTC_Init(SNVS_Type *base, const snvs_lp_srtc_config_t *config);
0221 
0222 /*!
0223  * @brief Stops the SRTC timer.
0224  *
0225  * @param base SNVS peripheral base address
0226  */
0227 void SNVS_LP_SRTC_Deinit(SNVS_Type *base);
0228 
0229 /*!
0230  * @brief Fills in the SNVS_LP config struct with the default settings.
0231  *
0232  * The default values are as follows.
0233  * @code
0234  *    config->srtccalenable = false;
0235  *    config->srtccalvalue = 0U;
0236  * @endcode
0237  * @param config Pointer to the user's SNVS configuration structure.
0238  */
0239 void SNVS_LP_SRTC_GetDefaultConfig(snvs_lp_srtc_config_t *config);
0240 
0241 /*!
0242  * @name Secure RTC (SRTC) current Time & Alarm
0243  * @{
0244  */
0245 
0246 /*!
0247  * @brief Sets the SNVS SRTC date and time according to the given time structure.
0248  *
0249  * @param base     SNVS peripheral base address
0250  * @param datetime Pointer to the structure where the date and time details are stored.
0251  *
0252  * @return kStatus_Success: Success in setting the time and starting the SNVS SRTC
0253  *         kStatus_InvalidArgument: Error because the datetime format is incorrect
0254  */
0255 status_t SNVS_LP_SRTC_SetDatetime(SNVS_Type *base, const snvs_lp_srtc_datetime_t *datetime);
0256 
0257 /*!
0258  * @brief Gets the SNVS SRTC time and stores it in the given time structure.
0259  *
0260  * @param base     SNVS peripheral base address
0261  * @param datetime Pointer to the structure where the date and time details are stored.
0262  */
0263 void SNVS_LP_SRTC_GetDatetime(SNVS_Type *base, snvs_lp_srtc_datetime_t *datetime);
0264 
0265 /*!
0266  * @brief Sets the SNVS SRTC alarm time.
0267  *
0268  * The function sets the SRTC alarm. It also checks whether the specified alarm
0269  * time is greater than the present time. If not, the function does not set the alarm
0270  * and returns an error.
0271  * Please note, that SRTC alarm has limited resolution because only 32 most
0272  * significant bits of SRTC counter are compared to SRTC Alarm register.
0273  * If the alarm time is beyond SRTC resolution, the function does not set the alarm
0274  * and returns an error.
0275  *
0276  * @param base      SNVS peripheral base address
0277  * @param alarmTime Pointer to the structure where the alarm time is stored.
0278  *
0279  * @return kStatus_Success: success in setting the SNVS SRTC alarm
0280  *         kStatus_InvalidArgument: Error because the alarm datetime format is incorrect
0281  *         kStatus_Fail: Error because the alarm time has already passed or is beyond resolution
0282  */
0283 status_t SNVS_LP_SRTC_SetAlarm(SNVS_Type *base, const snvs_lp_srtc_datetime_t *alarmTime);
0284 
0285 /*!
0286  * @brief Returns the SNVS SRTC alarm time.
0287  *
0288  * @param base     SNVS peripheral base address
0289  * @param datetime Pointer to the structure where the alarm date and time details are stored.
0290  */
0291 void SNVS_LP_SRTC_GetAlarm(SNVS_Type *base, snvs_lp_srtc_datetime_t *datetime);
0292 
0293 /*! @}*/
0294 
0295 /*!
0296  * @name Interrupt Interface
0297  * @{
0298  */
0299 
0300 /*!
0301  * @brief Enables the selected SNVS interrupts.
0302  *
0303  * @param base SNVS peripheral base address
0304  * @param mask The interrupts to enable. This is a logical OR of members of the
0305  *             enumeration :: _snvs_lp_srtc_interrupts
0306  */
0307 static inline void SNVS_LP_SRTC_EnableInterrupts(SNVS_Type *base, uint32_t mask)
0308 {
0309     base->LPCR |= mask;
0310 }
0311 
0312 /*!
0313  * @brief Disables the selected SNVS interrupts.
0314  *
0315  * @param base SNVS peripheral base address
0316  * @param mask The interrupts to enable. This is a logical OR of members of the
0317  *             enumeration :: _snvs_lp_srtc_interrupts
0318  */
0319 static inline void SNVS_LP_SRTC_DisableInterrupts(SNVS_Type *base, uint32_t mask)
0320 {
0321     base->LPCR &= ~mask;
0322 }
0323 
0324 /*!
0325  * @brief Gets the enabled SNVS interrupts.
0326  *
0327  * @param base SNVS peripheral base address
0328  *
0329  * @return The enabled interrupts. This is the logical OR of members of the
0330  *         enumeration :: _snvs_lp_srtc_interrupts
0331  */
0332 uint32_t SNVS_LP_SRTC_GetEnabledInterrupts(SNVS_Type *base);
0333 
0334 /*! @}*/
0335 
0336 /*!
0337  * @name Status Interface
0338  * @{
0339  */
0340 
0341 /*!
0342  * @brief Gets the SNVS status flags.
0343  *
0344  * @param base SNVS peripheral base address
0345  *
0346  * @return The status flags. This is the logical OR of members of the
0347  *         enumeration :: _snvs_lp_srtc_status_flags
0348  */
0349 uint32_t SNVS_LP_SRTC_GetStatusFlags(SNVS_Type *base);
0350 
0351 /*!
0352  * @brief  Clears the SNVS status flags.
0353  *
0354  * @param base SNVS peripheral base address
0355  * @param mask The status flags to clear. This is a logical OR of members of the
0356  *             enumeration :: _snvs_lp_srtc_status_flags
0357  */
0358 static inline void SNVS_LP_SRTC_ClearStatusFlags(SNVS_Type *base, uint32_t mask)
0359 {
0360     base->LPSR |= mask;
0361 }
0362 
0363 /*! @}*/
0364 
0365 /*!
0366  * @name Timer Start and Stop
0367  * @{
0368  */
0369 
0370 /*!
0371  * @brief Starts the SNVS SRTC time counter.
0372  *
0373  * @param base SNVS peripheral base address
0374  */
0375 static inline void SNVS_LP_SRTC_StartTimer(SNVS_Type *base)
0376 {
0377     base->LPCR |= SNVS_LPCR_SRTC_ENV_MASK;
0378     while ((0U == (base->LPCR & SNVS_LPCR_SRTC_ENV_MASK)))
0379     {
0380     }
0381 }
0382 
0383 /*!
0384  * @brief Stops the SNVS SRTC time counter.
0385  *
0386  * @param base SNVS peripheral base address
0387  */
0388 static inline void SNVS_LP_SRTC_StopTimer(SNVS_Type *base)
0389 {
0390     base->LPCR &= ~SNVS_LPCR_SRTC_ENV_MASK;
0391     while ((base->LPCR & SNVS_LPCR_SRTC_ENV_MASK) != 0U)
0392     {
0393     }
0394 }
0395 
0396 /*! @}*/
0397 
0398 /*!
0399  * @name External tampering
0400  * @{
0401  */
0402 
0403 #if defined(FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER) && (FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER > 0)
0404 
0405 /*!
0406  * @brief Enables the specified SNVS external tamper.
0407  *
0408  * @param base SNVS peripheral base address
0409  * @param pin SNVS external tamper pin
0410  * @param config Configuration structure of external passive tamper
0411  */
0412 void SNVS_LP_EnablePassiveTamper(SNVS_Type *base, snvs_lp_external_tamper_t pin, snvs_lp_passive_tamper_t config);
0413 
0414 #endif /* defined(FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER) && (FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER > 0) */
0415 
0416 #if defined(FSL_FEATURE_SNVS_HAS_ACTIVE_TAMPERS) && (FSL_FEATURE_SNVS_HAS_ACTIVE_TAMPERS > 0)
0417 /*!
0418  * @brief Enable active tamper tx external pad
0419  *
0420  * @param base SNVS peripheral base address
0421  * @param pin SNVS active tamper pin
0422  * @param config Configuration structure of external active tamper
0423  */
0424 status_t SNVS_LP_EnableTxActiveTamper(SNVS_Type *base,
0425                                       snvs_lp_active_tx_tamper_t pin,
0426                                       tamper_active_tx_config_t config);
0427 
0428 /*!
0429  * @brief Enable active tamper rx external pad
0430  *
0431  * @param base SNVS peripheral base address
0432  * @param rx SNVS external RX tamper pin
0433  * @param config SNVS RX tamper config structure
0434  */
0435 status_t SNVS_LP_EnableRxActiveTamper(SNVS_Type *base, snvs_lp_external_tamper_t rx, tamper_active_rx_config_t config);
0436 
0437 /*!
0438  * @brief Sets voltage tamper detect
0439  *
0440  * @param base SNVS peripheral base address
0441  * @param enable True if enable false if disable
0442  */
0443 status_t SNVS_LP_SetVoltageTamper(SNVS_Type *base, bool enable);
0444 
0445 /*!
0446  * @brief Sets temperature tamper detect
0447  *
0448  * @param base SNVS peripheral base address
0449  * @param enable True if enable false if disable
0450  */
0451 status_t SNVS_LP_SetTemperatureTamper(SNVS_Type *base, bool enable);
0452 
0453 /*!
0454  * @brief Sets clock tamper detect
0455  *
0456  * @param base SNVS peripheral base address
0457  * @param enable True if enable false if disable
0458  */
0459 status_t SNVS_LP_SetClockTamper(SNVS_Type *base, bool enable);
0460 
0461 /*!
0462  * brief Check voltage tamper
0463  *
0464  * param base SNVS peripheral base address
0465  */
0466 snvs_lp_external_tamper_status_t SNVS_LP_CheckVoltageTamper(SNVS_Type *base);
0467 
0468 /*!
0469  * @brief Check temperature tamper
0470  *
0471  * @param base SNVS peripheral base address
0472  */
0473 snvs_lp_external_tamper_status_t SNVS_LP_CheckTemperatureTamper(SNVS_Type *base);
0474 
0475 /*!
0476  * brief Check clock tamper
0477  *
0478  * param base SNVS peripheral base address
0479  */
0480 snvs_lp_external_tamper_status_t SNVS_LP_CheckClockTamper(SNVS_Type *base);
0481 
0482 /*!
0483  * @brief Fills in the SNVS tamper pin config struct with the default settings.
0484  *
0485  * The default values are as follows.
0486  * code
0487  *  config->clock       = kSNVS_ActiveTamper16HZ;
0488  *  config->seed        = 0U;
0489  *  config->polynomial  = 0U;
0490  * endcode
0491  * @param config Pointer to the user's SNVS configuration structure.
0492  */
0493 void SNVS_LP_TamperPinTx_GetDefaultConfig(tamper_active_tx_config_t *config);
0494 
0495 /*!
0496  * brief Fills in the SNVS tamper pin config struct with the default settings.
0497  *
0498  * The default values are as follows.
0499  * code
0500  *  config->filterenable    = 0U;
0501  *  config->filter          = 0U;
0502  *  config->tx              = kSNVS_ActiveTamper1;
0503  * endcode
0504  * param config Pointer to the user's SNVS configuration structure.
0505  */
0506 void SNVS_LP_TamperPinRx_GetDefaultConfig(tamper_active_rx_config_t *config);
0507 #endif /* defined(FSL_FEATURE_SNVS_HAS_ACTIVE_TAMPERS) && (FSL_FEATURE_SNVS_HAS_ACTIVE_TAMPERS > 0) */
0508 
0509 /*!
0510  * @brief Fills in the SNVS tamper pin config struct with the default settings.
0511  *
0512  * The default values are as follows.
0513  * code
0514  *  config->polarity        = 0U;
0515  *  config->filterenable    = 0U; if available on SoC
0516  *  config->filter          = 0U; if available on SoC
0517  * endcode
0518  * @param config Pointer to the user's SNVS configuration structure.
0519  */
0520 void SNVS_LP_PassiveTamperPin_GetDefaultConfig(snvs_lp_passive_tamper_t *config);
0521 
0522 #if defined(FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER) && (FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER > 0)
0523 
0524 /*!
0525  * @brief Disables the specified SNVS external tamper.
0526  *
0527  * @param base SNVS peripheral base address
0528  * @param pin SNVS external tamper pin
0529  */
0530 void SNVS_LP_DisableExternalTamper(SNVS_Type *base, snvs_lp_external_tamper_t pin);
0531 
0532 /*!
0533  * @brief Disable all external tamper.
0534  *
0535  * @param base SNVS peripheral base address
0536  */
0537 void SNVS_LP_DisableAllExternalTamper(SNVS_Type *base);
0538 
0539 /*!
0540  * @brief Returns status of the specified external tamper.
0541  *
0542  * @param base SNVS peripheral base address
0543  * @param pin SNVS external tamper pin
0544  *
0545  * @return The status flag. This is the enumeration :: _snvs_lp_external_tamper_status
0546  */
0547 snvs_lp_external_tamper_status_t SNVS_LP_GetExternalTamperStatus(SNVS_Type *base, snvs_lp_external_tamper_t pin);
0548 
0549 /*!
0550  * @brief Clears status of the specified external tamper.
0551  *
0552  * @param base SNVS peripheral base address
0553  * @param pin SNVS external tamper pin
0554  */
0555 void SNVS_LP_ClearExternalTamperStatus(SNVS_Type *base, snvs_lp_external_tamper_t pin);
0556 
0557 /*!
0558  * @brief Clears status of the all external tamper.
0559  *
0560  * @param base SNVS peripheral base address
0561  */
0562 void SNVS_LP_ClearAllExternalTamperStatus(SNVS_Type *base);
0563 
0564 #endif /* defined(FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER) && (FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER > 0) */
0565 
0566 /*! @}*/
0567 
0568 /*!
0569  * @name Monotonic Counter (MC)
0570  * @{
0571  */
0572 
0573 /*!
0574  * @brief Enable or disable the Monotonic Counter.
0575  *
0576  * @param base SNVS peripheral base address
0577  * @param enable Pass true to enable, false to disable.
0578  */
0579 static inline void SNVS_LP_EnableMonotonicCounter(SNVS_Type *base, bool enable)
0580 {
0581     if (enable)
0582     {
0583         base->LPCR |= SNVS_LPCR_MC_ENV_MASK;
0584     }
0585     else
0586     {
0587         base->LPCR &= (~SNVS_LPCR_MC_ENV_MASK);
0588     }
0589 }
0590 
0591 /*!
0592  * @brief Get the current Monotonic Counter.
0593  *
0594  * @param base SNVS peripheral base address
0595  * @return Current Monotonic Counter value.
0596  */
0597 uint64_t SNVS_LP_GetMonotonicCounter(SNVS_Type *base);
0598 
0599 /*!
0600  * @brief Increase the Monotonic Counter.
0601  *
0602  * Increase the Monotonic Counter by 1.
0603  *
0604  * @param base SNVS peripheral base address
0605  */
0606 static inline void SNVS_LP_IncreaseMonotonicCounter(SNVS_Type *base)
0607 {
0608     /* Write to the LPSMCLR or LPSMCLR, the counter increases. */
0609     *((volatile uint32_t *)(uint32_t)(&(base->LPSMCLR))) = 0xFFFFFFFFU;
0610 }
0611 
0612 /*! @}*/
0613 
0614 /*!
0615  * @name Zeroizable Master Key (ZMK)
0616  * @{
0617  */
0618 
0619 /*!
0620  * @brief Write Zeroizable Master Key (ZMK) to the SNVS registers.
0621  *
0622  * @param base SNVS peripheral base address
0623  * @param ZMKey The ZMK write to the SNVS register.
0624  */
0625 void SNVS_LP_WriteZeroizableMasterKey(SNVS_Type *base, uint32_t ZMKey[SNVS_ZMK_REG_COUNT]);
0626 
0627 /*!
0628  * @brief Set Zeroizable Master Key valid.
0629  *
0630  * This API could only be called when using software programming mode. After writing
0631  * ZMK using @ref SNVS_LP_WriteZeroizableMasterKey, call this API to make the ZMK
0632  * valid.
0633  *
0634  * @param base SNVS peripheral base address
0635  * @param valid Pass true to set valid, false to set invalid.
0636  */
0637 static inline void SNVS_LP_SetZeroizableMasterKeyValid(SNVS_Type *base, bool valid)
0638 {
0639     if (valid)
0640     {
0641         base->LPMKCR |= SNVS_LPMKCR_ZMK_VAL_MASK;
0642     }
0643     else
0644     {
0645         base->LPMKCR &= (~SNVS_LPMKCR_ZMK_VAL_MASK);
0646     }
0647 }
0648 
0649 /*!
0650  * @brief Get Zeroizable Master Key valid status.
0651  *
0652  * In hardware programming mode, call this API to check whether the ZMK is valid.
0653  *
0654  * @param base SNVS peripheral base address
0655  * @return true if valid, false if invalid.
0656  */
0657 static inline bool SNVS_LP_GetZeroizableMasterKeyValid(SNVS_Type *base)
0658 {
0659     return (SNVS_LPMKCR_ZMK_VAL_MASK == (base->LPMKCR & SNVS_LPMKCR_ZMK_VAL_MASK));
0660 }
0661 
0662 /*!
0663  * @brief Set Zeroizable Master Key programming mode.
0664  *
0665  * @param base SNVS peripheral base address
0666  * @param mode ZMK programming mode.
0667  */
0668 static inline void SNVS_LP_SetZeroizableMasterKeyProgramMode(SNVS_Type *base, snvs_lp_zmk_program_mode_t mode)
0669 {
0670     if (kSNVS_ZMKSoftwareProgram == mode)
0671     {
0672         base->LPMKCR &= (~SNVS_LPMKCR_ZMK_HWP_MASK);
0673     }
0674     else
0675     {
0676         base->LPMKCR |= SNVS_LPMKCR_ZMK_HWP_MASK;
0677     }
0678 }
0679 
0680 /*!
0681  * @brief Enable or disable Zeroizable Master Key ECC.
0682  *
0683  * @param base SNVS peripheral base address
0684  * @param enable Pass true to enable, false to disable.
0685  */
0686 static inline void SNVS_LP_EnableZeroizableMasterKeyECC(SNVS_Type *base, bool enable)
0687 {
0688     if (enable)
0689     {
0690         base->LPMKCR |= SNVS_LPMKCR_ZMK_ECC_EN_MASK;
0691     }
0692     else
0693     {
0694         base->LPMKCR &= (~SNVS_LPMKCR_ZMK_ECC_EN_MASK);
0695     }
0696 }
0697 
0698 /*!
0699  * @brief Set SNVS Master Key mode.
0700  *
0701  * @param base SNVS peripheral base address
0702  * @param mode Master Key mode.
0703  * @note When @ref kSNVS_ZMK or @ref kSNVS_CMK used, the SNVS_HP must be configured
0704  * to enable the master key selection.
0705  */
0706 static inline void SNVS_LP_SetMasterKeyMode(SNVS_Type *base, snvs_lp_master_key_mode_t mode)
0707 {
0708     uint32_t lpmkcr = base->LPMKCR;
0709     lpmkcr          = (lpmkcr & (~SNVS_LPMKCR_MASTER_KEY_SEL_MASK)) | SNVS_LPMKCR_MASTER_KEY_SEL(mode);
0710     base->LPMKCR    = lpmkcr;
0711 }
0712 
0713 #if defined(FSL_FEATURE_SNVS_HAS_STATE_TRANSITION) && (FSL_FEATURE_SNVS_HAS_STATE_TRANSITION > 0)
0714 /*!
0715  * brief Transition SNVS SSM state to Trusted/Non-secure from Check state
0716  *
0717  * param base SNVS peripheral base address
0718  *
0719  * return kStatus_Success: Success in transitioning SSM State
0720  *        kStatus_Fail: SSM State transition failed
0721  */
0722 status_t SNVS_LP_SSM_State_Transition(SNVS_Type *base);
0723 #endif /* FSL_FEATURE_SNVS_HAS_STATE_TRANSITION */
0724 
0725 /*! @}*/
0726 
0727 #if defined(__cplusplus)
0728 }
0729 #endif
0730 
0731 /*! @}*/
0732 
0733 #endif /* _FSL_SNVS_LP_H_ */