diff options
Diffstat (limited to '')
| -rw-r--r-- | bsps/arm/imxrt/nxp/devices/MIMXRT1052/drivers/fsl_snvs_lp.c | 809 |
1 files changed, 0 insertions, 809 deletions
diff --git a/bsps/arm/imxrt/nxp/devices/MIMXRT1052/drivers/fsl_snvs_lp.c b/bsps/arm/imxrt/nxp/devices/MIMXRT1052/drivers/fsl_snvs_lp.c deleted file mode 100644 index bf5a7cb023..0000000000 --- a/bsps/arm/imxrt/nxp/devices/MIMXRT1052/drivers/fsl_snvs_lp.c +++ /dev/null @@ -1,809 +0,0 @@ -/* - * Copyright (c) 2016, Freescale Semiconductor, Inc. - * Copyright 2017-2019, 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 value and clear the previous status. */ - base->LPPGDR = SNVS_DEFAULT_PGD_VALUE; - base->LPSR = SNVS_LPSR_PGD_MASK; -} - -/*! - * 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 */ - - int pin; - - if (config->srtcCalEnable) - { - base->LPCR = SNVS_LPCR_LPCALB_VAL_MASK & (config->srtcCalValue << SNVS_LPCR_LPCALB_VAL_SHIFT); - base->LPCR |= SNVS_LPCR_LPCALB_EN_MASK; - } - - 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); - } -} - -/*! - * 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 Enables the specified SNVS external tamper. - * - * param base SNVS peripheral base address - * param pin SNVS external tamper pin - * param polarity Polarity of external tamper - */ -void SNVS_LP_EnableExternalTamper(SNVS_Type *base, - snvs_lp_external_tamper_t pin, - snvs_lp_external_tamper_polarity_t polarity) -{ - switch (pin) - { - case (kSNVS_ExternalTamper1): - base->LPTDCR = - (base->LPTDCR & ~(1UL << SNVS_LPTDCR_ET1P_SHIFT)) | ((uint32_t)polarity << SNVS_LPTDCR_ET1P_SHIFT); - 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 = (base->LPTDCR & ~(1U << SNVS_LPTDCR_ET2P_SHIFT)) | (polarity << SNVS_LPTDCR_ET2P_SHIFT); - base->LPTDCR |= SNVS_LPTDCR_ET2_EN_MASK; - break; - case (kSNVS_ExternalTamper3): - base->LPTDC2R = (base->LPTDC2R & ~(1U << SNVS_LPTDC2R_ET3P_SHIFT)) | (polarity << SNVS_LPTDC2R_ET3P_SHIFT); - base->LPTDC2R |= SNVS_LPTDC2R_ET3_EN_MASK; - break; - case (kSNVS_ExternalTamper4): - base->LPTDC2R = (base->LPTDC2R & ~(1U << SNVS_LPTDC2R_ET4P_SHIFT)) | (polarity << SNVS_LPTDC2R_ET4P_SHIFT); - base->LPTDC2R |= SNVS_LPTDC2R_ET4_EN_MASK; - break; - case (kSNVS_ExternalTamper5): - base->LPTDC2R = (base->LPTDC2R & ~(1U << SNVS_LPTDC2R_ET5P_SHIFT)) | (polarity << SNVS_LPTDC2R_ET5P_SHIFT); - base->LPTDC2R |= SNVS_LPTDC2R_ET5_EN_MASK; - break; - case (kSNVS_ExternalTamper6): - base->LPTDC2R = (base->LPTDC2R & ~(1U << SNVS_LPTDC2R_ET6P_SHIFT)) | (polarity << SNVS_LPTDC2R_ET6P_SHIFT); - base->LPTDC2R |= SNVS_LPTDC2R_ET6_EN_MASK; - break; - case (kSNVS_ExternalTamper7): - base->LPTDC2R = (base->LPTDC2R & ~(1U << SNVS_LPTDC2R_ET7P_SHIFT)) | (polarity << SNVS_LPTDC2R_ET7P_SHIFT); - base->LPTDC2R |= SNVS_LPTDC2R_ET7_EN_MASK; - break; - case (kSNVS_ExternalTamper8): - base->LPTDC2R = (base->LPTDC2R & ~(1U << SNVS_LPTDC2R_ET8P_SHIFT)) | (polarity << SNVS_LPTDC2R_ET8P_SHIFT); - base->LPTDC2R |= SNVS_LPTDC2R_ET8_EN_MASK; - break; - case (kSNVS_ExternalTamper9): - base->LPTDC2R = (base->LPTDC2R & ~(1U << SNVS_LPTDC2R_ET9P_SHIFT)) | (polarity << SNVS_LPTDC2R_ET9P_SHIFT); - base->LPTDC2R |= SNVS_LPTDC2R_ET9_EN_MASK; - break; - case (kSNVS_ExternalTamper10): - base->LPTDC2R = - (base->LPTDC2R & ~(1U << SNVS_LPTDC2R_ET10P_SHIFT)) | (polarity << SNVS_LPTDC2R_ET10P_SHIFT); - 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 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 = (base->LPSR & SNVS_LPSR_ET2D_MASK) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected; - break; - case (kSNVS_ExternalTamper3): - status = (base->LPTDSR & SNVS_LPTDSR_ET3D_MASK) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected; - break; - case (kSNVS_ExternalTamper4): - status = (base->LPTDSR & SNVS_LPTDSR_ET4D_MASK) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected; - break; - case (kSNVS_ExternalTamper5): - status = (base->LPTDSR & SNVS_LPTDSR_ET5D_MASK) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected; - break; - case (kSNVS_ExternalTamper6): - status = (base->LPTDSR & SNVS_LPTDSR_ET6D_MASK) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected; - break; - case (kSNVS_ExternalTamper7): - status = (base->LPTDSR & SNVS_LPTDSR_ET7D_MASK) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected; - break; - case (kSNVS_ExternalTamper8): - status = (base->LPTDSR & SNVS_LPTDSR_ET8D_MASK) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected; - break; - case (kSNVS_ExternalTamper9): - status = (base->LPTDSR & SNVS_LPTDSR_ET9D_MASK) ? kSNVS_TamperDetected : kSNVS_TamperNotDetected; - break; - case (kSNVS_ExternalTamper10): - status = (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 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 */ |