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Diffstat (limited to '')
| -rw-r--r-- | bsps/arm/imxrt/mcux-sdk/drivers/tempmon/fsl_tempmon.c | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/bsps/arm/imxrt/mcux-sdk/drivers/tempmon/fsl_tempmon.c b/bsps/arm/imxrt/mcux-sdk/drivers/tempmon/fsl_tempmon.c new file mode 100644 index 0000000000..c0486bd6d7 --- /dev/null +++ b/bsps/arm/imxrt/mcux-sdk/drivers/tempmon/fsl_tempmon.c @@ -0,0 +1,204 @@ +/* + * Copyright 2018-2021 NXP + * All rights reserved. + * + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include "fsl_tempmon.h" + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/* Component ID definition, used by tools. */ +#ifndef FSL_COMPONENT_ID +#define FSL_COMPONENT_ID "platform.drivers.tempmon" +#endif + +/*! @brief TEMPMON calibration data mask. */ +#define TEMPMON_HOTTEMPMASK 0xFFU +#define TEMPMON_HOTTEMPSHIFT 0x00U +#define TEMPMON_HOTCOUNTMASK 0xFFF00U +#define TEMPMON_HOTCOUNTSHIFT 0X08U +#define TEMPMON_ROOMCOUNTMASK 0xFFF00000U +#define TEMPMON_ROOMCOUNTSHIFT 0x14U + +/*! @brief the room temperature. */ +#define TEMPMON_ROOMTEMP 25.0f + +/******************************************************************************* + * Prototypes + ******************************************************************************/ + +/******************************************************************************* + * Variables + ******************************************************************************/ + +static int32_t s_hotTemp; /*!< The value of TEMPMON_TEMPSENSE0[TEMP_VALUE] at room temperature .*/ +static int32_t s_hotCount; /*!< The value of TEMPMON_TEMPSENSE0[TEMP_VALUE] at the hot temperature.*/ +static float s_hotT_ROOM; /*!< The value of s_hotTemp minus room temperature(25 degrees celsius).*/ +static int32_t s_roomC_hotC; /*!< The value of s_roomCount minus s_hotCount.*/ + +/******************************************************************************* + * Code + ******************************************************************************/ +/*! + * brief Initializes the TEMPMON module. + * + * param base TEMPMON base pointer + * param config Pointer to configuration structure. + */ +void TEMPMON_Init(TEMPMON_Type *base, const tempmon_config_t *config) +{ + assert(NULL != config); + + uint32_t calibrationData; + uint32_t tmpU32; + int32_t roomCount; + + /* Power on the temperature sensor*/ + base->TEMPSENSE0 &= ~TEMPMON_TEMPSENSE0_POWER_DOWN_MASK; + + /* Set temperature monitor frequency */ + base->TEMPSENSE1 = TEMPMON_TEMPSENSE1_MEASURE_FREQ(config->frequency); + + /* ready to read calibration data */ + calibrationData = OCOTP->ANA1; + tmpU32 = (calibrationData & TEMPMON_HOTTEMPMASK) >> TEMPMON_HOTTEMPSHIFT; + s_hotTemp = (int32_t)tmpU32; + + tmpU32 = (calibrationData & TEMPMON_HOTCOUNTMASK) >> TEMPMON_HOTCOUNTSHIFT; + s_hotCount = (int32_t)tmpU32; + + tmpU32 = (calibrationData & TEMPMON_ROOMCOUNTMASK) >> TEMPMON_ROOMCOUNTSHIFT; + roomCount = (int32_t)tmpU32; + + s_hotT_ROOM = (float)s_hotTemp - TEMPMON_ROOMTEMP; + s_roomC_hotC = roomCount - s_hotCount; + + /* Set alarm temperature */ + TEMPMON_SetTempAlarm(base, config->highAlarmTemp, kTEMPMON_HighAlarmMode); + TEMPMON_SetTempAlarm(base, config->panicAlarmTemp, kTEMPMON_PanicAlarmMode); + TEMPMON_SetTempAlarm(base, config->lowAlarmTemp, kTEMPMON_LowAlarmMode); +} + +/*! + * brief Deinitializes the TEMPMON module. + * + * param base TEMPMON base pointer + */ +void TEMPMON_Deinit(TEMPMON_Type *base) +{ + base->TEMPSENSE0 |= TEMPMON_TEMPSENSE0_POWER_DOWN_MASK; +} + +/*! + * brief Gets the default configuration structure. + * + * This function initializes the TEMPMON configuration structure to a default value. The default + * values are: + * tempmonConfig->frequency = 0x02U; + * tempmonConfig->highAlarmTemp = 44U; + * tempmonConfig->panicAlarmTemp = 90U; + * tempmonConfig->lowAlarmTemp = 39U; + * + * param config Pointer to a configuration structure. + */ +void TEMPMON_GetDefaultConfig(tempmon_config_t *config) +{ + assert(config); + + /* Initializes the configure structure to zero. */ + (void)memset(config, 0, sizeof(*config)); + + /* Default measure frequency */ + config->frequency = 0x03U; + /* Default high alarm temperature */ + config->highAlarmTemp = 40; + /* Default panic alarm temperature */ + config->panicAlarmTemp = 90; + /* Default low alarm temperature */ + config->lowAlarmTemp = 20; +} + +/*! + * brief Get current temperature with the fused temperature calibration data. + * + * param base TEMPMON base pointer + * return current temperature with degrees Celsius. + */ +float TEMPMON_GetCurrentTemperature(TEMPMON_Type *base) +{ + /* Check arguments */ + assert(NULL != base); + + uint32_t nmeas; + float tmeas; + + while (0U == (base->TEMPSENSE0 & TEMPMON_TEMPSENSE0_FINISHED_MASK)) + { + } + + /* ready to read temperature code value */ + nmeas = (base->TEMPSENSE0 & TEMPMON_TEMPSENSE0_TEMP_CNT_MASK) >> TEMPMON_TEMPSENSE0_TEMP_CNT_SHIFT; + + /* Calculate temperature */ + tmeas = (float)s_hotTemp - (((float)nmeas - (float)s_hotCount) * (s_hotT_ROOM / (float)s_roomC_hotC)); + + return tmeas; +} + +/*! + * brief Set the temperature count (raw sensor output) that will generate an alarm interrupt. + * + * param base TEMPMON base pointer + * param tempVal The alarm temperature with degrees Celsius + * param alarmMode The alarm mode. + */ +void TEMPMON_SetTempAlarm(TEMPMON_Type *base, int8_t tempVal, tempmon_alarm_mode alarmMode) +{ + /* Check arguments */ + assert(NULL != base); + /* Different SOC has different qualified temperature level based on AEC-Q100 standard by default, such as Consumer(0 + to +95 degrees celsius)/Industrial(-40 to +105 degrees celsius)/Automotive(-40 to +125 degrees celsius). */ + assert(s_hotTemp >= tempVal); + + int32_t tempCodeVal; + uint32_t tempRegVal; + + /* Calculate alarm temperature code value */ + tempCodeVal = s_hotCount + (s_hotTemp - (int32_t)tempVal) * s_roomC_hotC / (int32_t)s_hotT_ROOM; + + switch (alarmMode) + { + case kTEMPMON_HighAlarmMode: + /* Clear alarm value and set a new high alarm temperature code value */ + tempRegVal = base->TEMPSENSE0; + tempRegVal = + (tempRegVal & ~TEMPMON_TEMPSENSE0_ALARM_VALUE_MASK) | TEMPMON_TEMPSENSE0_ALARM_VALUE(tempCodeVal); + base->TEMPSENSE0 = tempRegVal; + break; + + case kTEMPMON_PanicAlarmMode: + /* Clear panic alarm value and set a new panic alarm temperature code value */ + tempRegVal = base->TEMPSENSE2; + tempRegVal = (tempRegVal & ~TEMPMON_TEMPSENSE2_PANIC_ALARM_VALUE_MASK) | + TEMPMON_TEMPSENSE2_PANIC_ALARM_VALUE(tempCodeVal); + base->TEMPSENSE2 = tempRegVal; + break; + + case kTEMPMON_LowAlarmMode: + /* Clear low alarm value and set a new low alarm temperature code value */ + tempRegVal = base->TEMPSENSE2; + tempRegVal = (tempRegVal & ~TEMPMON_TEMPSENSE2_LOW_ALARM_VALUE_MASK) | + TEMPMON_TEMPSENSE2_LOW_ALARM_VALUE(tempCodeVal); + base->TEMPSENSE2 = tempRegVal; + break; + + default: + assert(false); + break; + } +} |