diff options
Diffstat (limited to 'bsps/arm/imxrt/mcux-sdk/drivers/snvs_lp/fsl_snvs_lp.c')
| -rw-r--r-- | bsps/arm/imxrt/mcux-sdk/drivers/snvs_lp/fsl_snvs_lp.c | 1358 |
1 files changed, 1358 insertions, 0 deletions
diff --git a/bsps/arm/imxrt/mcux-sdk/drivers/snvs_lp/fsl_snvs_lp.c b/bsps/arm/imxrt/mcux-sdk/drivers/snvs_lp/fsl_snvs_lp.c new file mode 100644 index 0000000000..c9a703eebe --- /dev/null +++ b/bsps/arm/imxrt/mcux-sdk/drivers/snvs_lp/fsl_snvs_lp.c @@ -0,0 +1,1358 @@ +/* + * Copyright (c) 2016, Freescale Semiconductor, Inc. + * Copyright 2017-2022, 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); + + SNVS_LP_Init(base); + + 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; + + SNVS_LP_Deinit(base); +} + +/*! + * 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 */ |