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- /*
- * Copyright (c) 2016, Freescale Semiconductor, Inc.
- * Copyright 2017-2021, NXP
- * All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
- #include "fsl_snvs_lp.h"
- /*******************************************************************************
- * Definitions
- ******************************************************************************/
- /* Component ID definition, used by tools. */
- #ifndef FSL_COMPONENT_ID
- #define FSL_COMPONENT_ID "platform.drivers.snvs_lp"
- #endif
- #define SECONDS_IN_A_DAY (86400U)
- #define SECONDS_IN_A_HOUR (3600U)
- #define SECONDS_IN_A_MINUTE (60U)
- #define DAYS_IN_A_YEAR (365U)
- #define YEAR_RANGE_START (1970U)
- #define YEAR_RANGE_END (2099U)
- #define SNVS_DEFAULT_PGD_VALUE (0x41736166U)
- /*******************************************************************************
- * Prototypes
- ******************************************************************************/
- /*!
- * @brief Checks whether the date and time passed in is valid
- *
- * @param datetime Pointer to structure where the date and time details are stored
- *
- * @return Returns false if the date & time details are out of range; true if in range
- */
- static bool SNVS_LP_CheckDatetimeFormat(const snvs_lp_srtc_datetime_t *datetime);
- /*!
- * @brief Converts time data from datetime to seconds
- *
- * @param datetime Pointer to datetime structure where the date and time details are stored
- *
- * @return The result of the conversion in seconds
- */
- static uint32_t SNVS_LP_ConvertDatetimeToSeconds(const snvs_lp_srtc_datetime_t *datetime);
- /*!
- * @brief Converts time data from seconds to a datetime structure
- *
- * @param seconds Seconds value that needs to be converted to datetime format
- * @param datetime Pointer to the datetime structure where the result of the conversion is stored
- */
- static void SNVS_LP_ConvertSecondsToDatetime(uint32_t seconds, snvs_lp_srtc_datetime_t *datetime);
- /*!
- * @brief Returns SRTC time in seconds.
- *
- * This function is used internally to get actual SRTC time in seconds.
- *
- * @param base SNVS peripheral base address
- *
- * @return SRTC time in seconds
- */
- static uint32_t SNVS_LP_SRTC_GetSeconds(SNVS_Type *base);
- #if (!(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && \
- defined(SNVS_LP_CLOCKS))
- /*!
- * @brief Get the SNVS instance from peripheral base address.
- *
- * @param base SNVS peripheral base address.
- *
- * @return SNVS instance.
- */
- static uint32_t SNVS_LP_GetInstance(SNVS_Type *base);
- #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
- /*******************************************************************************
- * Variables
- ******************************************************************************/
- #if (!(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && \
- defined(SNVS_LP_CLOCKS))
- /*! @brief Pointer to snvs_lp clock. */
- const clock_ip_name_t s_snvsLpClock[] = SNVS_LP_CLOCKS;
- #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
- /*******************************************************************************
- * Code
- ******************************************************************************/
- static bool SNVS_LP_CheckDatetimeFormat(const snvs_lp_srtc_datetime_t *datetime)
- {
- assert(datetime != NULL);
- /* Table of days in a month for a non leap year. First entry in the table is not used,
- * valid months start from 1
- */
- uint8_t daysPerMonth[] = {0U, 31U, 28U, 31U, 30U, 31U, 30U, 31U, 31U, 30U, 31U, 30U, 31U};
- /* Check year, month, hour, minute, seconds */
- if ((datetime->year < YEAR_RANGE_START) || (datetime->year > YEAR_RANGE_END) || (datetime->month > 12U) ||
- (datetime->month < 1U) || (datetime->hour >= 24U) || (datetime->minute >= 60U) || (datetime->second >= 60U))
- {
- /* If not correct then error*/
- return false;
- }
- /* Adjust the days in February for a leap year */
- if ((((datetime->year & 3U) == 0U) && (datetime->year % 100U != 0U)) || (datetime->year % 400U == 0U))
- {
- daysPerMonth[2] = 29U;
- }
- /* Check the validity of the day */
- if ((datetime->day > daysPerMonth[datetime->month]) || (datetime->day < 1U))
- {
- return false;
- }
- return true;
- }
- static uint32_t SNVS_LP_ConvertDatetimeToSeconds(const snvs_lp_srtc_datetime_t *datetime)
- {
- assert(datetime != NULL);
- /* Number of days from begin of the non Leap-year*/
- /* Number of days from begin of the non Leap-year*/
- uint16_t monthDays[] = {0U, 0U, 31U, 59U, 90U, 120U, 151U, 181U, 212U, 243U, 273U, 304U, 334U};
- uint32_t seconds;
- /* Compute number of days from 1970 till given year*/
- seconds = ((uint32_t)datetime->year - 1970U) * DAYS_IN_A_YEAR;
- /* Add leap year days */
- seconds += (((uint32_t)datetime->year / 4U) - (1970U / 4U));
- /* Add number of days till given month*/
- seconds += monthDays[datetime->month];
- /* Add days in given month. We subtract the current day as it is
- * represented in the hours, minutes and seconds field*/
- seconds += ((uint32_t)datetime->day - 1U);
- /* For leap year if month less than or equal to Febraury, decrement day counter*/
- if ((0U == (datetime->year & 3U)) && (datetime->month <= 2U))
- {
- seconds--;
- }
- seconds = (seconds * SECONDS_IN_A_DAY) + (datetime->hour * SECONDS_IN_A_HOUR) +
- (datetime->minute * SECONDS_IN_A_MINUTE) + datetime->second;
- return seconds;
- }
- static void SNVS_LP_ConvertSecondsToDatetime(uint32_t seconds, snvs_lp_srtc_datetime_t *datetime)
- {
- assert(datetime != NULL);
- uint32_t x;
- uint32_t secondsRemaining, days;
- uint16_t daysInYear;
- /* Table of days in a month for a non leap year. First entry in the table is not used,
- * valid months start from 1
- */
- uint8_t daysPerMonth[] = {0U, 31U, 28U, 31U, 30U, 31U, 30U, 31U, 31U, 30U, 31U, 30U, 31U};
- /* Start with the seconds value that is passed in to be converted to date time format */
- secondsRemaining = seconds;
- /* Calcuate the number of days, we add 1 for the current day which is represented in the
- * hours and seconds field
- */
- days = secondsRemaining / SECONDS_IN_A_DAY + 1U;
- /* Update seconds left*/
- secondsRemaining = secondsRemaining % SECONDS_IN_A_DAY;
- /* Calculate the datetime hour, minute and second fields */
- datetime->hour = (uint8_t)(secondsRemaining / SECONDS_IN_A_HOUR);
- secondsRemaining = secondsRemaining % SECONDS_IN_A_HOUR;
- datetime->minute = (uint8_t)(secondsRemaining / 60U);
- datetime->second = (uint8_t)(secondsRemaining % SECONDS_IN_A_MINUTE);
- /* Calculate year */
- daysInYear = DAYS_IN_A_YEAR;
- datetime->year = YEAR_RANGE_START;
- while (days > daysInYear)
- {
- /* Decrease day count by a year and increment year by 1 */
- days -= daysInYear;
- datetime->year++;
- /* Adjust the number of days for a leap year */
- if ((datetime->year & 3U) != 0U)
- {
- daysInYear = DAYS_IN_A_YEAR;
- }
- else
- {
- daysInYear = DAYS_IN_A_YEAR + 1U;
- }
- }
- /* Adjust the days in February for a leap year */
- if (0U == (datetime->year & 3U))
- {
- daysPerMonth[2] = 29U;
- }
- for (x = 1U; x <= 12U; x++)
- {
- if (days <= daysPerMonth[x])
- {
- datetime->month = (uint8_t)x;
- break;
- }
- else
- {
- days -= daysPerMonth[x];
- }
- }
- datetime->day = (uint8_t)days;
- }
- #if (!(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && \
- defined(SNVS_LP_CLOCKS))
- static uint32_t SNVS_LP_GetInstance(SNVS_Type *base)
- {
- return 0U;
- }
- #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
- /*!
- * brief Ungates the SNVS clock and configures the peripheral for basic operation.
- *
- * note This API should be called at the beginning of the application using the SNVS driver.
- *
- * param base SNVS peripheral base address
- * param config Pointer to the user's SNVS configuration structure.
- */
- void SNVS_LP_Init(SNVS_Type *base)
- {
- #if (!(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && \
- defined(SNVS_LP_CLOCKS))
- uint32_t instance = SNVS_LP_GetInstance(base);
- CLOCK_EnableClock(s_snvsLpClock[instance]);
- #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
- /* Power glitch detector: set the PGD/LVD value and clear the previous status. */
- #if defined(SNVS_LPPGDR_PGD)
- base->LPPGDR = SNVS_DEFAULT_PGD_VALUE;
- base->LPSR = SNVS_LPSR_PGD_MASK;
- #elif defined(SNVS_LPLVDR_LVD)
- base->LPLVDR = SNVS_DEFAULT_PGD_VALUE;
- base->LPSR = SNVS_LPSR_LVD_MASK;
- #else
- #error "No power/voltage detector register defined"
- #endif
- }
- /*!
- * brief Deinit the SNVS LP section.
- *
- * param base SNVS peripheral base address
- */
- void SNVS_LP_Deinit(SNVS_Type *base)
- {
- #if (!(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && \
- defined(SNVS_LP_CLOCKS))
- uint32_t instance = SNVS_LP_GetInstance(base);
- CLOCK_DisableClock(s_snvsLpClock[instance]);
- #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
- }
- /*!
- * brief Ungates the SNVS clock and configures the peripheral for basic operation.
- *
- * note This API should be called at the beginning of the application using the SNVS driver.
- *
- * param base SNVS peripheral base address
- * param config Pointer to the user's SNVS configuration structure.
- */
- void SNVS_LP_SRTC_Init(SNVS_Type *base, const snvs_lp_srtc_config_t *config)
- {
- assert(config != NULL);
- #if (!(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && \
- defined(SNVS_LP_CLOCKS))
- uint32_t instance = SNVS_LP_GetInstance(base);
- CLOCK_EnableClock(s_snvsLpClock[instance]);
- #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
- if (config->srtcCalEnable)
- {
- base->LPCR = (base->LPCR & ~SNVS_LPCR_LPCALB_VAL_MASK) | SNVS_LPCR_LPCALB_VAL(config->srtcCalValue);
- base->LPCR |= SNVS_LPCR_LPCALB_EN_MASK;
- }
- #if defined(FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER) && (FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER > 0)
- int pin;
- for (pin = (int32_t)kSNVS_ExternalTamper1; pin <= (int32_t)SNVS_LP_MAX_TAMPER; pin++)
- {
- SNVS_LP_DisableExternalTamper(SNVS, (snvs_lp_external_tamper_t)pin);
- SNVS_LP_ClearExternalTamperStatus(SNVS, (snvs_lp_external_tamper_t)pin);
- }
- #endif /* defined(FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER) && (FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER > 0) */
- }
- /*!
- * brief Stops the SRTC timer.
- *
- * param base SNVS peripheral base address
- */
- void SNVS_LP_SRTC_Deinit(SNVS_Type *base)
- {
- base->LPCR &= ~SNVS_LPCR_SRTC_ENV_MASK;
- #if (!(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && \
- defined(SNVS_LP_CLOCKS))
- uint32_t instance = SNVS_LP_GetInstance(base);
- CLOCK_DisableClock(s_snvsLpClock[instance]);
- #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
- }
- /*!
- * brief Fills in the SNVS_LP config struct with the default settings.
- *
- * The default values are as follows.
- * code
- * config->srtccalenable = false;
- * config->srtccalvalue = 0U;
- * endcode
- * param config Pointer to the user's SNVS configuration structure.
- */
- void SNVS_LP_SRTC_GetDefaultConfig(snvs_lp_srtc_config_t *config)
- {
- assert(config != NULL);
- /* Initializes the configure structure to zero. */
- (void)memset(config, 0, sizeof(*config));
- config->srtcCalEnable = false;
- config->srtcCalValue = 0U;
- }
- static uint32_t SNVS_LP_SRTC_GetSeconds(SNVS_Type *base)
- {
- uint32_t seconds = 0;
- uint32_t tmp = 0;
- /* Do consecutive reads until value is correct */
- do
- {
- seconds = tmp;
- tmp = (base->LPSRTCMR << 17U);
- tmp |= (base->LPSRTCLR >> 15U);
- } while (tmp != seconds);
- return seconds;
- }
- /*!
- * brief Sets the SNVS SRTC date and time according to the given time structure.
- *
- * param base SNVS peripheral base address
- * param datetime Pointer to the structure where the date and time details are stored.
- *
- * return kStatus_Success: Success in setting the time and starting the SNVS SRTC
- * kStatus_InvalidArgument: Error because the datetime format is incorrect
- */
- status_t SNVS_LP_SRTC_SetDatetime(SNVS_Type *base, const snvs_lp_srtc_datetime_t *datetime)
- {
- assert(datetime != NULL);
- uint32_t seconds = 0U;
- uint32_t tmp = base->LPCR;
- /* disable RTC */
- SNVS_LP_SRTC_StopTimer(base);
- /* Return error if the time provided is not valid */
- if (!(SNVS_LP_CheckDatetimeFormat(datetime)))
- {
- return kStatus_InvalidArgument;
- }
- /* Set time in seconds */
- seconds = SNVS_LP_ConvertDatetimeToSeconds(datetime);
- base->LPSRTCMR = (uint32_t)(seconds >> 17U);
- base->LPSRTCLR = (uint32_t)(seconds << 15U);
- /* reenable SRTC in case that it was enabled before */
- if ((tmp & SNVS_LPCR_SRTC_ENV_MASK) != 0U)
- {
- SNVS_LP_SRTC_StartTimer(base);
- }
- return kStatus_Success;
- }
- /*!
- * brief Gets the SNVS SRTC time and stores it in the given time structure.
- *
- * param base SNVS peripheral base address
- * param datetime Pointer to the structure where the date and time details are stored.
- */
- void SNVS_LP_SRTC_GetDatetime(SNVS_Type *base, snvs_lp_srtc_datetime_t *datetime)
- {
- assert(datetime != NULL);
- SNVS_LP_ConvertSecondsToDatetime(SNVS_LP_SRTC_GetSeconds(base), datetime);
- }
- /*!
- * brief Sets the SNVS SRTC alarm time.
- *
- * The function sets the SRTC alarm. It also checks whether the specified alarm
- * time is greater than the present time. If not, the function does not set the alarm
- * and returns an error.
- * Please note, that SRTC alarm has limited resolution because only 32 most
- * significant bits of SRTC counter are compared to SRTC Alarm register.
- * If the alarm time is beyond SRTC resolution, the function does not set the alarm
- * and returns an error.
- *
- * param base SNVS peripheral base address
- * param alarmTime Pointer to the structure where the alarm time is stored.
- *
- * return kStatus_Success: success in setting the SNVS SRTC alarm
- * kStatus_InvalidArgument: Error because the alarm datetime format is incorrect
- * kStatus_Fail: Error because the alarm time has already passed or is beyond resolution
- */
- status_t SNVS_LP_SRTC_SetAlarm(SNVS_Type *base, const snvs_lp_srtc_datetime_t *alarmTime)
- {
- assert(alarmTime != NULL);
- uint32_t alarmSeconds = 0U;
- uint32_t currSeconds = 0U;
- uint32_t tmp = base->LPCR;
- /* Return error if the alarm time provided is not valid */
- if (!(SNVS_LP_CheckDatetimeFormat(alarmTime)))
- {
- return kStatus_InvalidArgument;
- }
- alarmSeconds = SNVS_LP_ConvertDatetimeToSeconds(alarmTime);
- currSeconds = SNVS_LP_SRTC_GetSeconds(base);
- /* Return error if the alarm time has passed */
- if (alarmSeconds <= currSeconds)
- {
- return kStatus_Fail;
- }
- /* disable SRTC alarm interrupt */
- base->LPCR &= ~SNVS_LPCR_LPTA_EN_MASK;
- while ((base->LPCR & SNVS_LPCR_LPTA_EN_MASK) != 0U)
- {
- }
- /* Set alarm in seconds*/
- base->LPTAR = alarmSeconds;
- /* reenable SRTC alarm interrupt in case that it was enabled before */
- base->LPCR = tmp;
- return kStatus_Success;
- }
- /*!
- * brief Returns the SNVS SRTC alarm time.
- *
- * param base SNVS peripheral base address
- * param datetime Pointer to the structure where the alarm date and time details are stored.
- */
- void SNVS_LP_SRTC_GetAlarm(SNVS_Type *base, snvs_lp_srtc_datetime_t *datetime)
- {
- assert(datetime != NULL);
- uint32_t alarmSeconds = 0U;
- /* Get alarm in seconds */
- alarmSeconds = base->LPTAR;
- SNVS_LP_ConvertSecondsToDatetime(alarmSeconds, datetime);
- }
- /*!
- * brief Gets the SNVS status flags.
- *
- * param base SNVS peripheral base address
- *
- * return The status flags. This is the logical OR of members of the
- * enumeration ::snvs_status_flags_t
- */
- uint32_t SNVS_LP_SRTC_GetStatusFlags(SNVS_Type *base)
- {
- uint32_t flags = 0U;
- if ((base->LPSR & SNVS_LPSR_LPTA_MASK) != 0U)
- {
- flags |= (uint32_t)kSNVS_SRTC_AlarmInterruptFlag;
- }
- return flags;
- }
- /*!
- * brief Gets the enabled SNVS interrupts.
- *
- * param base SNVS peripheral base address
- *
- * return The enabled interrupts. This is the logical OR of members of the
- * enumeration ::snvs_interrupt_enable_t
- */
- uint32_t SNVS_LP_SRTC_GetEnabledInterrupts(SNVS_Type *base)
- {
- uint32_t val = 0U;
- if ((base->LPCR & SNVS_LPCR_LPTA_EN_MASK) != 0U)
- {
- val |= (uint32_t)kSNVS_SRTC_AlarmInterrupt;
- }
- return val;
- }
- /*!
- * brief Fills in the SNVS tamper pin config struct with the default settings.
- *
- * The default values are as follows.
- * code
- * config->polarity = 0U;
- * config->filterenable = 0U;
- * config->filter = 0U;
- * endcode
- * param config Pointer to the user's SNVS configuration structure.
- */
- void SNVS_LP_PassiveTamperPin_GetDefaultConfig(snvs_lp_passive_tamper_t *config)
- {
- assert(config != NULL);
- /* Initializes the configure structure to zero. */
- (void)memset(config, 0, sizeof(*config));
- config->polarity = 0U;
- #if defined(FSL_FEATURE_SNVS_PASSIVE_TAMPER_FILTER) && (FSL_FEATURE_SNVS_PASSIVE_TAMPER_FILTER > 0)
- config->filterenable = 0U;
- config->filter = 0U;
- #endif /* FSL_FEATURE_SNVS_PASSIVE_TAMPER_FILTER */
- }
- #if defined(FSL_FEATURE_SNVS_HAS_ACTIVE_TAMPERS) && (FSL_FEATURE_SNVS_HAS_ACTIVE_TAMPERS > 0)
- /*!
- * brief Fills in the SNVS tamper pin config struct with the default settings.
- *
- * The default values are as follows.
- * code
- * config->clock = kSNVS_ActiveTamper16HZ;
- * config->seed = 0U;
- * config->polynomial = 0U;
- * endcode
- * param config Pointer to the user's SNVS configuration structure.
- */
- void SNVS_LP_TamperPinTx_GetDefaultConfig(tamper_active_tx_config_t *config)
- {
- assert(config != NULL);
- /* Initializes the configure structure to zero. */
- (void)memset(config, 0, sizeof(*config));
- config->clock = kSNVS_ActiveTamper16HZ;
- config->seed = 0U;
- config->polynomial = 0U;
- }
- /*!
- * brief Fills in the SNVS tamper pin config struct with the default settings.
- *
- * The default values are as follows.
- * code
- * config->filterenable = 0U;
- * config->filter = 0U;
- * config->tx = kSNVS_ActiveTamper1;
- * endcode
- * param config Pointer to the user's SNVS configuration structure.
- */
- void SNVS_LP_TamperPinRx_GetDefaultConfig(tamper_active_rx_config_t *config)
- {
- assert(config != NULL);
- /* Initializes the configure structure to zero. */
- (void)memset(config, 0, sizeof(*config));
- config->filterenable = 0U;
- config->filter = 0U;
- config->activeTamper = kSNVS_ActiveTamper1;
- }
- #endif /* FSL_FEATURE_SNVS_HAS_ACTIVE_TAMPERS */
- #if defined(FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER) && (FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER > 0)
- /*!
- * brief Enables the specified SNVS external tamper.
- *
- * param base SNVS peripheral base address
- * param pin SNVS external tamper pin
- * param config Configuration structure of external passive tamper
- */
- void SNVS_LP_EnablePassiveTamper(SNVS_Type *base, snvs_lp_external_tamper_t pin, snvs_lp_passive_tamper_t config)
- {
- switch (pin)
- {
- case (kSNVS_ExternalTamper1):
- /* Set polarity */
- if (config.polarity != 0U)
- {
- SNVS->LPTDCR |= SNVS_LPTDCR_ET1P_MASK;
- }
- else
- {
- SNVS->LPTDCR &= ~SNVS_LPTDCR_ET1P_MASK;
- }
- #if defined(FSL_FEATURE_SNVS_PASSIVE_TAMPER_FILTER) && (FSL_FEATURE_SNVS_PASSIVE_TAMPER_FILTER > 0)
- /* Enable filter and set it's value, dissable otherwise */
- if (config.filterenable != 0U)
- {
- SNVS->LPTGFCR |= SNVS_LPTGFCR_ETGF1_EN_MASK;
- SNVS->LPTGFCR |= SNVS_LPTGFCR_ETGF1(config.filter);
- }
- else
- {
- SNVS->LPTGFCR &= ~SNVS_LPTGFCR_ETGF1_EN_MASK;
- }
- #endif /* FSL_FEATURE_SNVS_PASSIVE_TAMPER_FILTER */
- /* enable tamper pin */
- base->LPTDCR |= SNVS_LPTDCR_ET1_EN_MASK;
- break;
- #if defined(FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER) && (FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER > 1)
- case (kSNVS_ExternalTamper2):
- /* Set polarity */
- base->LPTDCR =
- (base->LPTDCR & ~(SNVS_LPTDCR_ET2P_MASK)) | ((uint32_t)config.polarity << SNVS_LPTDCR_ET2P_SHIFT);
- /* Enable filter and set it's value, dissable otherwise */
- if (config.filterenable != 0U)
- {
- SNVS->LPTGFCR |= SNVS_LPTGFCR_ETGF2_EN_MASK;
- SNVS->LPTGFCR |= SNVS_LPTGFCR_ETGF2(config.filter);
- }
- else
- {
- SNVS->LPTGFCR &= ~SNVS_LPTGFCR_ETGF2_EN_MASK;
- }
- /* enable tamper pin */
- SNVS->LPTDCR |= SNVS_LPTDCR_ET2_EN_MASK;
- break;
- case (kSNVS_ExternalTamper3):
- /* Set polarity */
- base->LPTDC2R =
- (base->LPTDC2R & ~(SNVS_LPTDC2R_ET3P_MASK)) | ((uint32_t)config.polarity << SNVS_LPTDC2R_ET3P_SHIFT);
- /* Enable filter and set it's value if set */
- if (config.filterenable != 0U)
- {
- /* Set filter value */
- SNVS->LPTGF1CR |= SNVS_LPTGF1CR_ETGF3(config.filter);
- /* Enable tamper 3 glitch filter */
- SNVS->LPTGF1CR |= SNVS_LPTGF1CR_ETGF3_EN(1U);
- }
- /* enable tamper pin */
- base->LPTDC2R |= SNVS_LPTDC2R_ET3_EN_MASK;
- break;
- case (kSNVS_ExternalTamper4):
- /* Set polarity */
- base->LPTDC2R =
- (base->LPTDC2R & ~(SNVS_LPTDC2R_ET4P_MASK)) | ((uint32_t)config.polarity << SNVS_LPTDC2R_ET4P_SHIFT);
- /* Enable filter and set it's value if set */
- if (config.filterenable != 0U)
- {
- /* Set filter value */
- SNVS->LPTGF1CR |= SNVS_LPTGF1CR_ETGF4(config.filter);
- /* Enable tamper 4 glitch filter */
- SNVS->LPTGF1CR |= SNVS_LPTGF1CR_ETGF4_EN(1U);
- }
- /* enable tamper pin */
- base->LPTDC2R |= SNVS_LPTDC2R_ET4_EN_MASK;
- break;
- case (kSNVS_ExternalTamper5):
- /* Set polarity */
- base->LPTDC2R =
- (base->LPTDC2R & ~(SNVS_LPTDC2R_ET5P_MASK)) | ((uint32_t)config.polarity << SNVS_LPTDC2R_ET5P_SHIFT);
- /* Enable filter and set it's value if set */
- if (config.filterenable != 0U)
- {
- /* Set filter value */
- SNVS->LPTGF1CR |= SNVS_LPTGF1CR_ETGF5(config.filter);
- /* Enable tamper 5 glitch filter */
- SNVS->LPTGF1CR |= SNVS_LPTGF1CR_ETGF5_EN(1U);
- }
- /* enable tamper pin */
- base->LPTDC2R |= SNVS_LPTDC2R_ET5_EN_MASK;
- break;
- case (kSNVS_ExternalTamper6):
- /* Set polarity */
- base->LPTDC2R =
- (base->LPTDC2R & ~(SNVS_LPTDC2R_ET6P_MASK)) | ((uint32_t)config.polarity << SNVS_LPTDC2R_ET6P_SHIFT);
- /* Enable filter and set it's value if set */
- if (config.filterenable != 0U)
- {
- /* Set filter value */
- SNVS->LPTGF1CR |= SNVS_LPTGF1CR_ETGF6(config.filter);
- /* Enable tamper 6 glitch filter */
- SNVS->LPTGF1CR |= SNVS_LPTGF1CR_ETGF6_EN(1U);
- }
- /* enable tamper pin */
- base->LPTDC2R |= SNVS_LPTDC2R_ET6_EN_MASK;
- break;
- case (kSNVS_ExternalTamper7):
- /* Set polarity */
- base->LPTDC2R =
- (base->LPTDC2R & ~(SNVS_LPTDC2R_ET7P_MASK)) | ((uint32_t)config.polarity << SNVS_LPTDC2R_ET7P_SHIFT);
- /* Enable filter and set it's value if set */
- if (config.filterenable != 0U)
- {
- /* Set filter value */
- SNVS->LPTGF2CR |= SNVS_LPTGF2CR_ETGF7(config.filter);
- /* Enable tamper 6 glitch filter */
- SNVS->LPTGF2CR |= SNVS_LPTGF2CR_ETGF7_EN(1U);
- }
- /* enable tamper pin */
- base->LPTDC2R |= SNVS_LPTDC2R_ET7_EN_MASK;
- break;
- case (kSNVS_ExternalTamper8):
- /* Set polarity */
- base->LPTDC2R =
- (base->LPTDC2R & ~(SNVS_LPTDC2R_ET8P_MASK)) | ((uint32_t)config.polarity << SNVS_LPTDC2R_ET8P_SHIFT);
- /* Enable filter and set it's value if set */
- if (config.filterenable != 0U)
- {
- /* Set filter value */
- SNVS->LPTGF2CR |= SNVS_LPTGF2CR_ETGF8(config.filter);
- /* Enable tamper 8 glitch filter */
- SNVS->LPTGF2CR |= SNVS_LPTGF2CR_ETGF8_EN(1U);
- }
- /* enable tamper pin */
- base->LPTDC2R |= SNVS_LPTDC2R_ET8_EN_MASK;
- break;
- case (kSNVS_ExternalTamper9):
- /* Set polarity */
- base->LPTDC2R =
- (base->LPTDC2R & ~(SNVS_LPTDC2R_ET9P_MASK)) | ((uint32_t)config.polarity << SNVS_LPTDC2R_ET9P_SHIFT);
- /* Enable filter and set it's value if set */
- if (config.filterenable != 0U)
- {
- /* Set filter value */
- SNVS->LPTGF2CR |= SNVS_LPTGF2CR_ETGF9(config.filter);
- /* Enable tamper 9 glitch filter */
- SNVS->LPTGF2CR |= SNVS_LPTGF2CR_ETGF9_EN(1U);
- }
- /* enable tamper pin */
- base->LPTDC2R |= SNVS_LPTDC2R_ET9_EN_MASK;
- break;
- case (kSNVS_ExternalTamper10):
- /* Set polarity */
- base->LPTDC2R =
- (base->LPTDC2R & ~(SNVS_LPTDC2R_ET10P_MASK)) | ((uint32_t)config.polarity << SNVS_LPTDC2R_ET10P_SHIFT);
- /* Enable filter and set it's value if set */
- if (config.filterenable != 0U)
- {
- /* Set filter value */
- SNVS->LPTGF2CR |= SNVS_LPTGF2CR_ETGF10(config.filter);
- /* Enable tamper 10 glitch filter */
- SNVS->LPTGF2CR |= SNVS_LPTGF2CR_ETGF10_EN(1U);
- }
- /* enable tamper pin */
- base->LPTDC2R |= SNVS_LPTDC2R_ET10_EN_MASK;
- break;
- #endif
- default:
- /* All the cases have been listed above, the default clause should not be reached. */
- break;
- }
- }
- /*!
- * brief Disables the specified SNVS external tamper.
- *
- * param base SNVS peripheral base address
- * param pin SNVS external tamper pin
- */
- void SNVS_LP_DisableExternalTamper(SNVS_Type *base, snvs_lp_external_tamper_t pin)
- {
- switch (pin)
- {
- case (kSNVS_ExternalTamper1):
- base->LPTDCR &= ~SNVS_LPTDCR_ET1_EN_MASK;
- break;
- #if defined(FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER) && (FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER > 1)
- case (kSNVS_ExternalTamper2):
- base->LPTDCR &= ~SNVS_LPTDCR_ET2_EN_MASK;
- break;
- case (kSNVS_ExternalTamper3):
- base->LPTDC2R &= ~SNVS_LPTDC2R_ET3_EN_MASK;
- break;
- case (kSNVS_ExternalTamper4):
- base->LPTDC2R &= ~SNVS_LPTDC2R_ET4_EN_MASK;
- break;
- case (kSNVS_ExternalTamper5):
- base->LPTDC2R &= ~SNVS_LPTDC2R_ET5_EN_MASK;
- break;
- case (kSNVS_ExternalTamper6):
- base->LPTDC2R &= ~SNVS_LPTDC2R_ET6_EN_MASK;
- break;
- case (kSNVS_ExternalTamper7):
- base->LPTDC2R &= ~SNVS_LPTDC2R_ET7_EN_MASK;
- break;
- case (kSNVS_ExternalTamper8):
- base->LPTDC2R &= ~SNVS_LPTDC2R_ET8_EN_MASK;
- break;
- case (kSNVS_ExternalTamper9):
- base->LPTDC2R &= ~SNVS_LPTDC2R_ET9_EN_MASK;
- break;
- case (kSNVS_ExternalTamper10):
- base->LPTDC2R &= ~SNVS_LPTDC2R_ET10_EN_MASK;
- break;
- #endif
- default:
- /* All the cases have been listed above, the default clause should not be reached. */
- break;
- }
- }
- /*!
- * brief Disable all external tamper.
- *
- * param base SNVS peripheral base address
- */
- void SNVS_LP_DisableAllExternalTamper(SNVS_Type *base)
- {
- for (int pin = (int8_t)kSNVS_ExternalTamper1; pin <= (int8_t)SNVS_LP_MAX_TAMPER; pin++)
- {
- SNVS_LP_DisableExternalTamper(SNVS, (snvs_lp_external_tamper_t)pin);
- }
- }
- /*!
- * brief Returns status of the specified external tamper.
- *
- * param base SNVS peripheral base address
- * param pin SNVS external tamper pin
- *
- * return The status flag. This is the enumeration ::snvs_external_tamper_status_t
- */
- snvs_lp_external_tamper_status_t SNVS_LP_GetExternalTamperStatus(SNVS_Type *base, snvs_lp_external_tamper_t pin)
- {
- snvs_lp_external_tamper_status_t status = kSNVS_TamperNotDetected;
- switch (pin)
- {
- case (kSNVS_ExternalTamper1):
- status = (bool)(base->LPSR & SNVS_LPSR_ET1D_MASK) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected;
- break;
- #if defined(FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER) && (FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER > 1)
- case (kSNVS_ExternalTamper2):
- status = (bool)(base->LPSR & SNVS_LPSR_ET2D_MASK) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected;
- break;
- case (kSNVS_ExternalTamper3):
- status = (bool)(base->LPTDSR & SNVS_LPTDSR_ET3D_MASK) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected;
- break;
- case (kSNVS_ExternalTamper4):
- status = (bool)(base->LPTDSR & SNVS_LPTDSR_ET4D_MASK) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected;
- break;
- case (kSNVS_ExternalTamper5):
- status = (bool)(base->LPTDSR & SNVS_LPTDSR_ET5D_MASK) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected;
- break;
- case (kSNVS_ExternalTamper6):
- status = (bool)(base->LPTDSR & SNVS_LPTDSR_ET6D_MASK) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected;
- break;
- case (kSNVS_ExternalTamper7):
- status = (bool)(base->LPTDSR & SNVS_LPTDSR_ET7D_MASK) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected;
- break;
- case (kSNVS_ExternalTamper8):
- status = (bool)(base->LPTDSR & SNVS_LPTDSR_ET8D_MASK) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected;
- break;
- case (kSNVS_ExternalTamper9):
- status = (bool)(base->LPTDSR & SNVS_LPTDSR_ET9D_MASK) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected;
- break;
- case (kSNVS_ExternalTamper10):
- status = (bool)(base->LPTDSR & SNVS_LPTDSR_ET10D_MASK) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected;
- break;
- #endif
- default:
- /* All the cases have been listed above, the default clause should not be reached. */
- break;
- }
- return status;
- }
- /*!
- * brief Clears status of the specified external tamper.
- *
- * param base SNVS peripheral base address
- * param pin SNVS external tamper pin
- */
- void SNVS_LP_ClearExternalTamperStatus(SNVS_Type *base, snvs_lp_external_tamper_t pin)
- {
- base->LPSR |= SNVS_LPSR_ET1D_MASK;
- switch (pin)
- {
- case (kSNVS_ExternalTamper1):
- base->LPSR |= SNVS_LPSR_ET1D_MASK;
- break;
- #if defined(FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER) && (FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER > 1)
- case (kSNVS_ExternalTamper2):
- base->LPSR |= SNVS_LPSR_ET2D_MASK;
- break;
- case (kSNVS_ExternalTamper3):
- base->LPTDSR |= SNVS_LPTDSR_ET3D_MASK;
- break;
- case (kSNVS_ExternalTamper4):
- base->LPTDSR |= SNVS_LPTDSR_ET4D_MASK;
- break;
- case (kSNVS_ExternalTamper5):
- base->LPTDSR |= SNVS_LPTDSR_ET5D_MASK;
- break;
- case (kSNVS_ExternalTamper6):
- base->LPTDSR |= SNVS_LPTDSR_ET6D_MASK;
- break;
- case (kSNVS_ExternalTamper7):
- base->LPTDSR |= SNVS_LPTDSR_ET7D_MASK;
- break;
- case (kSNVS_ExternalTamper8):
- base->LPTDSR |= SNVS_LPTDSR_ET8D_MASK;
- break;
- case (kSNVS_ExternalTamper9):
- base->LPTDSR |= SNVS_LPTDSR_ET9D_MASK;
- break;
- case (kSNVS_ExternalTamper10):
- base->LPTDSR |= SNVS_LPTDSR_ET10D_MASK;
- break;
- #endif
- default:
- /* All the cases have been listed above, the default clause should not be reached. */
- break;
- }
- }
- /*!
- * brief Clears status of the all external tamper.
- *
- * param base SNVS peripheral base address
- */
- void SNVS_LP_ClearAllExternalTamperStatus(SNVS_Type *base)
- {
- for (int pin = (int8_t)kSNVS_ExternalTamper1; pin <= (int8_t)SNVS_LP_MAX_TAMPER; pin++)
- {
- SNVS_LP_ClearExternalTamperStatus(SNVS, (snvs_lp_external_tamper_t)pin);
- }
- }
- #endif /* (!(defined(FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER) && (FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER > 0)) */
- #if defined(FSL_FEATURE_SNVS_HAS_ACTIVE_TAMPERS) && (FSL_FEATURE_SNVS_HAS_ACTIVE_TAMPERS > 0)
- /*!
- * brief Enable active tamper tx external pad
- *
- * param base SNVS peripheral base address
- * param pin SNVS external tamper pin
- */
- status_t SNVS_LP_EnableTxActiveTamper(SNVS_Type *base, snvs_lp_active_tx_tamper_t pin, tamper_active_tx_config_t config)
- {
- status_t status = kStatus_Success;
- switch (pin)
- {
- case (kSNVS_ActiveTamper1):
- {
- /* Enable active tamper tx external pad */
- base->LPATCTLR |= SNVS_LPATCTLR_AT1_PAD_EN_MASK;
- /* Set seed and polynomial */
- base->LPATCR[0] |= SNVS_LPATCR_Seed(config.seed) | SNVS_LPATCR_Polynomial(config.polynomial);
- /* Set clock */
- base->LPATCLKR |= SNVS_LPATCLKR_AT1_CLK_CTL(config.clock);
- /* Enable active tamper pin */
- base->LPATCTLR |= SNVS_LPATCTLR_AT1_EN_MASK;
- break;
- }
- case (kSNVS_ActiveTamper2):
- {
- base->LPATCTLR |= SNVS_LPATCTLR_AT2_PAD_EN_MASK;
- base->LPATCR[1] |= SNVS_LPATCR_Seed(config.seed) | SNVS_LPATCR_Polynomial(config.polynomial);
- base->LPATCLKR |= SNVS_LPATCLKR_AT2_CLK_CTL(config.clock);
- base->LPATCTLR |= SNVS_LPATCTLR_AT2_EN_MASK;
- break;
- }
- case (kSNVS_ActiveTamper3):
- {
- base->LPATCTLR |= SNVS_LPATCTLR_AT3_PAD_EN_MASK;
- base->LPATCR[2] |= SNVS_LPATCR_Seed(config.seed) | SNVS_LPATCR_Polynomial(config.polynomial);
- base->LPATCLKR |= SNVS_LPATCLKR_AT3_CLK_CTL(config.clock);
- base->LPATCTLR |= SNVS_LPATCTLR_AT3_EN_MASK;
- break;
- }
- case (kSNVS_ActiveTamper4):
- {
- base->LPATCTLR |= SNVS_LPATCTLR_AT4_PAD_EN_MASK;
- base->LPATCR[3] |= SNVS_LPATCR_Seed(config.seed) | SNVS_LPATCR_Polynomial(config.polynomial);
- base->LPATCLKR |= SNVS_LPATCLKR_AT4_CLK_CTL(config.clock);
- base->LPATCTLR |= SNVS_LPATCTLR_AT4_EN_MASK;
- break;
- }
- case (kSNVS_ActiveTamper5):
- {
- base->LPATCTLR |= SNVS_LPATCTLR_AT5_PAD_EN_MASK;
- base->LPATCR[4] |= SNVS_LPATCR_Seed(config.seed) | SNVS_LPATCR_Polynomial(config.polynomial);
- base->LPATCLKR |= SNVS_LPATCLKR_AT5_CLK_CTL(config.clock);
- base->LPATCTLR |= SNVS_LPATCTLR_AT5_EN_MASK;
- break;
- }
- default:
- status = kStatus_InvalidArgument;
- /* All the cases have been listed above, the default clause should not be reached. */
- break;
- }
- return status;
- }
- /*!
- * brief Enable active tamper rx external pad
- *
- * param base SNVS peripheral base address
- * param rx SNVS external RX tamper pin
- * param config SNVS RX tamper config structure
- */
- status_t SNVS_LP_EnableRxActiveTamper(SNVS_Type *base, snvs_lp_external_tamper_t rx, tamper_active_rx_config_t config)
- {
- status_t status = kStatus_Success;
- switch (rx)
- {
- case (kSNVS_ExternalTamper1):
- /* Enable filter and set it's value, dissable otherwise */
- if (config.filterenable != 0U)
- {
- SNVS->LPTGFCR |= SNVS_LPTGFCR_ETGF1_EN_MASK;
- SNVS->LPTGFCR |= SNVS_LPTGFCR_ETGF1(config.filter);
- }
- else
- {
- SNVS->LPTGFCR &= ~SNVS_LPTGFCR_ETGF1_EN_MASK;
- }
- /* Route TX to external tamper 1 */
- base->LPATRC1R = SNVS_LPATRC1R_ET1RCTL(config.activeTamper);
- /* enable tamper pin */
- base->LPTDCR |= SNVS_LPTDCR_ET1_EN_MASK;
- break;
- #if defined(FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER) && (FSL_FEATURE_SNVS_HAS_MULTIPLE_TAMPER > 1)
- case (kSNVS_ExternalTamper2):
- /* Enable filter and set it's value, dissable otherwise */
- if (config.filterenable != 0U)
- {
- SNVS->LPTGFCR |= SNVS_LPTGFCR_ETGF2_EN_MASK;
- SNVS->LPTGFCR |= SNVS_LPTGFCR_ETGF2(config.filter);
- }
- else
- {
- SNVS->LPTGFCR &= ~SNVS_LPTGFCR_ETGF2_EN_MASK;
- }
- /* Route TX to external tamper 2 */
- base->LPATRC1R = SNVS_LPATRC1R_ET2RCTL(config.activeTamper);
- /* enable tamper pin */
- SNVS->LPTDCR |= SNVS_LPTDCR_ET2_EN_MASK;
- break;
- case (kSNVS_ExternalTamper3):
- /* Enable filter and set it's value if set */
- if (config.filterenable != 0U)
- {
- /* Set filter value */
- SNVS->LPTGF1CR |= SNVS_LPTGF1CR_ETGF3(config.filter);
- /* Enable tamper 3 glitch filter */
- SNVS->LPTGF1CR |= SNVS_LPTGF1CR_ETGF3_EN(1U);
- }
- /* Route TX to external tamper 3 */
- base->LPATRC1R = SNVS_LPATRC1R_ET3RCTL(config.activeTamper);
- /* enable tamper pin */
- base->LPTDC2R |= SNVS_LPTDC2R_ET3_EN_MASK;
- break;
- case (kSNVS_ExternalTamper4):
- /* Enable filter and set it's value if set */
- if (config.filterenable != 0U)
- {
- /* Set filter value */
- SNVS->LPTGF1CR |= SNVS_LPTGF1CR_ETGF4(config.filter);
- /* Enable tamper 4 glitch filter */
- SNVS->LPTGF1CR |= SNVS_LPTGF1CR_ETGF4_EN(1U);
- }
- /* Route TX to external tamper 4 */
- base->LPATRC1R = SNVS_LPATRC1R_ET4RCTL(config.activeTamper);
- /* enable tamper pin */
- base->LPTDC2R |= SNVS_LPTDC2R_ET4_EN_MASK;
- break;
- case (kSNVS_ExternalTamper5):
- /* Enable filter and set it's value if set */
- if (config.filterenable != 0U)
- {
- /* Set filter value */
- SNVS->LPTGF1CR |= SNVS_LPTGF1CR_ETGF5(config.filter);
- /* Enable tamper 5 glitch filter */
- SNVS->LPTGF1CR |= SNVS_LPTGF1CR_ETGF5_EN(1U);
- }
- /* Route TX to external tamper 5 */
- base->LPATRC1R = SNVS_LPATRC1R_ET5RCTL(config.activeTamper);
- /* enable tamper pin */
- base->LPTDC2R |= SNVS_LPTDC2R_ET5_EN_MASK;
- break;
- case (kSNVS_ExternalTamper6):
- /* Enable filter and set it's value if set */
- if (config.filterenable != 0U)
- {
- /* Set filter value */
- SNVS->LPTGF1CR |= SNVS_LPTGF1CR_ETGF6(config.filter);
- /* Enable tamper 6 glitch filter */
- SNVS->LPTGF1CR |= SNVS_LPTGF1CR_ETGF6_EN(1U);
- }
- /* Route TX to external tamper 6 */
- base->LPATRC1R = SNVS_LPATRC1R_ET6RCTL(config.activeTamper);
- /* enable tamper pin */
- base->LPTDC2R |= SNVS_LPTDC2R_ET6_EN_MASK;
- break;
- case (kSNVS_ExternalTamper7):
- /* Enable filter and set it's value if set */
- if (config.filterenable != 0U)
- {
- /* Set filter value */
- SNVS->LPTGF2CR |= SNVS_LPTGF2CR_ETGF7(config.filter);
- /* Enable tamper 6 glitch filter */
- SNVS->LPTGF2CR |= SNVS_LPTGF2CR_ETGF7_EN(1U);
- }
- /* Route TX to external tamper 7 */
- base->LPATRC1R = SNVS_LPATRC1R_ET7RCTL(config.activeTamper);
- /* enable tamper pin */
- base->LPTDC2R |= SNVS_LPTDC2R_ET7_EN_MASK;
- break;
- case (kSNVS_ExternalTamper8):
- /* Enable filter and set it's value if set */
- if (config.filterenable != 0U)
- {
- /* Set filter value */
- SNVS->LPTGF2CR |= SNVS_LPTGF2CR_ETGF8(config.filter);
- /* Enable tamper 8 glitch filter */
- SNVS->LPTGF2CR |= SNVS_LPTGF2CR_ETGF8_EN(1U);
- }
- /* Route TX to external tamper 8 */
- base->LPATRC1R = SNVS_LPATRC1R_ET8RCTL(config.activeTamper);
- /* enable tamper pin */
- base->LPTDC2R |= SNVS_LPTDC2R_ET8_EN_MASK;
- break;
- case (kSNVS_ExternalTamper9):
- /* Enable filter and set it's value if set */
- if (config.filterenable != 0U)
- {
- /* Set filter value */
- SNVS->LPTGF2CR |= SNVS_LPTGF2CR_ETGF9(config.filter);
- /* Enable tamper 9 glitch filter */
- SNVS->LPTGF2CR |= SNVS_LPTGF2CR_ETGF9_EN(1U);
- }
- /* Route TX to external tamper 9 */
- base->LPATRC1R = SNVS_LPATRC2R_ET9RCTL(config.activeTamper);
- /* enable tamper pin */
- base->LPTDC2R |= SNVS_LPTDC2R_ET9_EN_MASK;
- break;
- case (kSNVS_ExternalTamper10):
- /* Enable filter and set it's value if set */
- if (config.filterenable != 0U)
- {
- /* Set filter value */
- SNVS->LPTGF2CR |= SNVS_LPTGF2CR_ETGF10(config.filter);
- /* Enable tamper 10 glitch filter */
- SNVS->LPTGF2CR |= SNVS_LPTGF2CR_ETGF10_EN(1U);
- }
- /* Route TX to external tamper 10 */
- base->LPATRC1R = SNVS_LPATRC2R_ET10RCTL(config.activeTamper);
- /* enable tamper pin */
- base->LPTDC2R |= SNVS_LPTDC2R_ET10_EN_MASK;
- break;
- #endif
- default:
- status = kStatus_InvalidArgument;
- /* All the cases have been listed above, the default clause should not be reached. */
- break;
- }
- return status;
- }
- /*!
- * brief Sets voltage tamper detect
- *
- * param base SNVS peripheral base address
- * param enable True if enable false if disable
- */
- status_t SNVS_LP_SetVoltageTamper(SNVS_Type *base, bool enable)
- {
- base->LPTDCR |= SNVS_LPTDCR_VT_EN(enable);
- return kStatus_Success;
- }
- /*!
- * brief Sets temperature tamper detect
- *
- * param base SNVS peripheral base address
- * param enable True if enable false if disable
- */
- status_t SNVS_LP_SetTemperatureTamper(SNVS_Type *base, bool enable)
- {
- SNVS->LPTDCR |= SNVS_LPTDCR_TT_EN(enable);
- return kStatus_Success;
- }
- /*!
- * brief Sets clock tamper detect
- *
- * param base SNVS peripheral base address
- * param enable True if enable false if disable
- */
- status_t SNVS_LP_SetClockTamper(SNVS_Type *base, bool enable)
- {
- SNVS->LPTDCR |= SNVS_LPTDCR_CT_EN(enable);
- return kStatus_Success;
- }
- /*!
- * brief Check voltage tamper
- *
- * param base SNVS peripheral base address
- */
- snvs_lp_external_tamper_status_t SNVS_LP_CheckVoltageTamper(SNVS_Type *base)
- {
- return ((SNVS->LPSR & SNVS_LPSR_VTD_MASK) != 0U) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected;
- }
- /*!
- * brief Check temperature tamper
- *
- * param base SNVS peripheral base address
- */
- snvs_lp_external_tamper_status_t SNVS_LP_CheckTemperatureTamper(SNVS_Type *base)
- {
- return ((SNVS->LPSR & SNVS_LPSR_TTD_MASK) != 0U) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected;
- }
- /*!
- * brief Check clock tamper
- *
- * param base SNVS peripheral base address
- */
- snvs_lp_external_tamper_status_t SNVS_LP_CheckClockTamper(SNVS_Type *base)
- {
- return ((SNVS->LPSR & SNVS_LPSR_CTD_MASK) != 0U) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected;
- }
- #endif /* defined(FSL_FEATURE_SNVS_HAS_ACTIVE_TAMPERS) && (FSL_FEATURE_SNVS_HAS_ACTIVE_TAMPERS > 0) */
- /*!
- * brief Get the current Monotonic Counter.
- *
- * param base SNVS peripheral base address
- * return Current Monotonic Counter value.
- */
- uint64_t SNVS_LP_GetMonotonicCounter(SNVS_Type *base)
- {
- uint32_t mc_lsb, mc_msb;
- mc_msb = base->LPSMCMR;
- mc_lsb = base->LPSMCLR;
- return ((uint64_t)mc_msb << 32UL) | (uint64_t)mc_lsb;
- }
- /*!
- * brief Write Zeroizable Master Key (ZMK) to the SNVS registers.
- *
- * param base SNVS peripheral base address
- * param ZMKey The ZMK write to the SNVS register.
- */
- void SNVS_LP_WriteZeroizableMasterKey(SNVS_Type *base, uint32_t ZMKey[SNVS_ZMK_REG_COUNT])
- {
- uint8_t i = 0;
- for (i = 0; i < SNVS_ZMK_REG_COUNT; i++)
- {
- base->LPZMKR[i] = ZMKey[i];
- }
- }
- #if defined(FSL_FEATURE_SNVS_HAS_STATE_TRANSITION) && (FSL_FEATURE_SNVS_HAS_STATE_TRANSITION > 0)
- /*!
- * brief Transition SNVS SSM state to Trusted/Non-secure from Check state
- *
- * param base SNVS peripheral base address
- *
- * return kStatus_Success: Success in transitioning SSM State
- * kStatus_Fail: SSM State transition failed
- */
- status_t SNVS_LP_SSM_State_Transition(SNVS_Type *base)
- {
- uint32_t curr_ssm_state = ((base->HPSR & SNVS_HPSR_SSM_STATE_MASK) >> SNVS_HPSR_SSM_STATE_SHIFT);
- uint32_t sec_config = ((OCOTP_CTRL->HW_OCOTP_OTFAD_CFG3 & OCOTP_CTRL_HW_OCOTP_SEC_CONFIG1_MASK) >>
- OCOTP_CTRL_HW_OCOTP_SEC_CONFIG1_SHIFT);
- /* Check if SSM State is Check state */
- if (curr_ssm_state == SNVS_SSM_STATE_CHECK)
- {
- if (sec_config == SEC_CONFIG_OPEN)
- {
- /* Transition to Non-secure state */
- base->HPCOMR |= SNVS_HPCOMR_SW_SV(1);
- }
- else
- {
- /* Transition to Trusted state */
- base->HPCOMR |= SNVS_HPCOMR_SSM_ST(1);
- }
- }
- uint32_t new_ssm_state = ((base->HPSR & SNVS_HPSR_SSM_STATE_MASK) >> SNVS_HPSR_SSM_STATE_SHIFT);
- if (new_ssm_state != SNVS_SSM_STATE_CHECK)
- {
- return kStatus_Success;
- }
- else
- {
- return kStatus_Fail;
- }
- }
- #endif /* FSL_FEATURE_SNVS_HAS_STATE_TRANSITION */
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