#include <stdbool.h>
#include "no_os_gpio.h"
#include "no_os_spi.h"
#include "no_os_util.h"

Include dependency graph for ltc2983.h:

This graph shows which files directly or indirectly include this file:

Classes
struct	ltc2983_init_param
	LTC2983 init param. More...

struct	ltc2983_desc
	LTC2983 descriptor. More...

struct	ltc2983_sensor
	common LTC2983 sensor struct More...

struct	ltc2983_custom_sensor
	custom LTC2983 sensor struct More...

struct	ltc2983_thermocouple
	thermocouple sensor descriptor for LTC2983 More...

struct	ltc2983_rtd
	RTD sensor descriptor for LTC2983. More...

struct	ltc2983_thermistor
	thermistor sensor descriptor for LTC2983 More...

struct	ideal_factor_value
	LTC2983 diode ideal factor value. More...

struct	ltc2983_diode
	diode sensor descriptor for LTC2983 More...

struct	r_sense_value
	LTC2983 sense resistance value. More...

struct	ltc2983_rsense
	sense resistor descriptor for LTC2983 More...

struct	ltc2983_adc
	direct ADC descriptor for LTC2983 More...

struct	ltc2983_temp
	analog temperature sensor descriptor for LTC2983 More...

Macros
#define	LTC2983_STATUS_REG 0x0000

#define	LTC2983_TEMP_RES_START_REG 0x0010

#define	LTC2983_EEPROM_KEY_REG 0x00B0

#define	LTC2983_EEPROM_READ_STATUS_REG 0x00D0

#define	LTC2983_GLOBAL_CONFIG_REG 0x00F0

#define	LTC2986_EEPROM_STATUS_REG 0x00F9

#define	LTC2983_MUX_CONFIG_REG 0x00FF

#define	LTC2983_CHAN_ASSIGN_START_REG 0x0200

#define	LTC2983_CUST_SENS_TBL_START_REG 0x0250

#define	LTC2983_CUST_SENS_TBL_END_REG 0x03CF

#define	LTC2983_CUST_SENS_TBL_SIZE

#define	LTC2983_SPI_READ_BYTE 0x3

#define	LTC2983_SPI_WRITE_BYTE 0x2

#define	LTC2983_EEPROM_KEY 0xA53C0F5A

#define	LTC2983_EEPROM_WRITE_CMD 0x15

#define	LTC2983_EEPROM_READ_CMD 0x16

#define	LTC2983_EEPROM_STATUS_FAILURE_MASK NO_OS_GENMASK(3, 1)

#define	LTC2983_EEPROM_READ_FAILURE_MASK NO_OS_GENMASK(7, 0)

#define	LTC2983_EEPROM_WRITE_TIME_MS 2600

#define	LTC2983_EEPROM_READ_TIME_MS 20

#define	LTC2983_CHAN_START_ADDR(chan) (((chan - 1) * 4) + LTC2983_CHAN_ASSIGN_START_REG)

#define	LTC2983_CHAN_RES_ADDR(chan) (((chan - 1) * 4) + LTC2983_TEMP_RES_START_REG)

#define	LTC2983_COMMON_HARD_FAULT_MASK NO_OS_GENMASK(31, 30)

#define	LTC2983_COMMON_SOFT_FAULT_MASK NO_OS_GENMASK(27, 25)

#define	LTC2983_STATUS_START_MASK NO_OS_BIT(7)

#define	LTC2983_STATUS_START(x) no_os_field_prep(LTC2983_STATUS_START_MASK, x)

#define	LTC2983_STATUS_UP_MASK NO_OS_GENMASK(7, 6)

#define	LTC2983_STATUS_UP(reg) no_os_field_get(LTC2983_STATUS_UP_MASK, reg)

#define	LTC2983_STATUS_CHAN_SEL_MASK NO_OS_GENMASK(4, 0)

#define	LTC2983_STATUS_CHAN_SEL(x) no_os_field_prep(LTC2983_STATUS_CHAN_SEL_MASK, x)

#define	LTC2983_NOTCH_FREQ_MASK NO_OS_GENMASK(1, 0)

#define	LTC2983_RES_VALID_MASK NO_OS_BIT(24)

#define	LTC2983_DATA_SIGN_BIT 23

#define	LTC2983_DATA_MASK NO_OS_GENMASK(LTC2983_DATA_SIGN_BIT, 0)

#define	LTC2983_CHAN_TYPE_MASK NO_OS_GENMASK(31, 27)

#define	LTC2983_CHAN_TYPE(x) no_os_field_prep(LTC2983_CHAN_TYPE_MASK, x)

#define	LTC2983_CHAN_ASSIGN_MASK NO_OS_GENMASK(26, 22)

#define	LTC2983_CHAN_ASSIGN(x) no_os_field_prep(LTC2983_CHAN_ASSIGN_MASK, x)

#define	LTC2983_CUSTOM_LEN_MASK NO_OS_GENMASK(5, 0)

#define	LTC2983_CUSTOM_LEN(x) no_os_field_prep(LTC2983_CUSTOM_LEN_MASK, x)

#define	LTC2983_CUSTOM_ADDR_MASK NO_OS_GENMASK(11, 6)

#define	LTC2983_CUSTOM_ADDR(x) no_os_field_prep(LTC2983_CUSTOM_ADDR_MASK, x)

#define	LTC2983_THERMOCOUPLE_CFG_MASK NO_OS_GENMASK(21, 18)

#define	LTC2983_THERMOCOUPLE_CFG(x) no_os_field_prep(LTC2983_THERMOCOUPLE_CFG_MASK, x)

#define	LTC2983_THERMOCOUPLE_HARD_FAULT_MASK NO_OS_GENMASK(31, 29)

#define	LTC2983_THERMOCOUPLE_SOFT_FAULT_MASK NO_OS_GENMASK(28, 25)

#define	LTC2983_RTD_CFG_MASK NO_OS_GENMASK(21, 18)

#define	LTC2983_RTD_CFG(x) no_os_field_prep(LTC2983_RTD_CFG_MASK, x)

#define	LTC2983_RTD_EXC_CURRENT_MASK NO_OS_GENMASK(17, 14)

#define	LTC2983_RTD_EXC_CURRENT(x) no_os_field_prep(LTC2983_RTD_EXC_CURRENT_MASK, x)

#define	LTC2983_RTD_CURVE_MASK NO_OS_GENMASK(13, 12)

#define	LTC2983_RTD_CURVE(x) no_os_field_prep(LTC2983_RTD_CURVE_MASK, x)

#define	LTC2983_THERMISTOR_CFG_MASK NO_OS_GENMASK(21, 19)

#define	LTC2983_THERMISTOR_CFG(x) no_os_field_prep(LTC2983_THERMISTOR_CFG_MASK, x)

#define	LTC2983_THERMISTOR_EXC_CURRENT_MASK NO_OS_GENMASK(18, 15)

#define	LTC2983_THERMISTOR_EXC_CURRENT(x) no_os_field_prep(LTC2983_THERMISTOR_EXC_CURRENT_MASK, x)

#define	LTC2983_DIODE_CFG_MASK NO_OS_GENMASK(26, 24)

#define	LTC2983_DIODE_CFG(x) no_os_field_prep(LTC2983_DIODE_CFG_MASK, x)

#define	LTC2983_DIODE_EXC_CURRENT_MASK NO_OS_GENMASK(23, 22)

#define	LTC2983_DIODE_EXC_CURRENT(x) no_os_field_prep(LTC2983_DIODE_EXC_CURRENT_MASK, x)

#define	LTC2983_DIODE_IDEAL_FACTOR_MASK NO_OS_GENMASK(21, 0)

#define	LTC2983_DIODE_IDEAL_FACTOR(x) no_os_field_prep(LTC2983_DIODE_IDEAL_FACTOR_MASK, x)

#define	LTC2983_R_SENSE_VAL_MASK NO_OS_GENMASK(26, 0)

#define	LTC2983_R_SENSE_VAL(x) no_os_field_prep(LTC2983_R_SENSE_VAL_MASK, x)

#define	LTC2983_ADC_SINGLE_ENDED_MASK NO_OS_BIT(26)

#define	LTC2983_ADC_SINGLE_ENDED(x) no_os_field_prep(LTC2983_ADC_SINGLE_ENDED_MASK, x)

#define	to_thermocouple(_sensor) NO_OS_CONTAINER_OF(_sensor, struct ltc2983_thermocouple, sensor)

#define	to_rtd(_sensor) NO_OS_CONTAINER_OF(_sensor, struct ltc2983_rtd, sensor)

#define	to_thermistor(_sensor) NO_OS_CONTAINER_OF(_sensor, struct ltc2983_thermistor, sensor)

#define	to_diode(_sensor) NO_OS_CONTAINER_OF(_sensor, struct ltc2983_diode, sensor)

#define	to_rsense(_sensor) NO_OS_CONTAINER_OF(_sensor, struct ltc2983_rsense, sensor)

#define	to_adc(_sensor) NO_OS_CONTAINER_OF(_sensor, struct ltc2983_adc, sensor)

#define	to_temp(_sensor) NO_OS_CONTAINER_OF(_sensor, struct ltc2983_temp, sensor)

Enumerations
enum	ltc298x_id { ID_LTC2983, ID_LTC2984, ID_LTC2986 }

enum	ltc2983_filter_notch_freq { LTC2983_50_60HZ_REJECTION, LTC2983_60HZ_REJECTION, LTC2983_50HZ_REJECTION }
	Notch frequency of the digital filter. More...

enum	ltc2983_sensor_type { LTC2983_UNASSIGNED, LTC2983_THERMOCOUPLE_J, LTC2983_THERMOCOUPLE_K, LTC2983_THERMOCOUPLE_E, LTC2983_THERMOCOUPLE_N, LTC2983_THERMOCOUPLE_R, LTC2983_THERMOCOUPLE_S, LTC2983_THERMOCOUPLE_T, LTC2983_THERMOCOUPLE_B, LTC2983_THERMOCOUPLE_CUSTOM, LTC2983_RTD_PT_10, LTC2983_RTD_PT_50, LTC2983_RTD_PT_100, LTC2983_RTD_PT_200, LTC2983_RTD_PT_500, LTC2983_RTD_PT_1000, LTC2983_RTD_1000, LTC2983_RTD_NI_120, LTC2983_RTD_CUSTOM, LTC2983_THERMISTOR_44004_44033, LTC2983_THERMISTOR_44005_44030, LTC2983_THERMISTOR_44007_44034, LTC2983_THERMISTOR_44006_44031, LTC2983_THERMISTOR_44008_44032, LTC2983_THERMISTOR_YSI_400, LTC2983_THERMISTOR_SPECTRUM_1003K, LTC2983_THERMISTOR_CUSTOM_STEINHART_HART, LTC2983_THERMISTOR_CUSTOM, LTC2983_DIODE, LTC2983_RSENSE, LTC2983_DIRECT_ADC, LTC2983_ACTIVE_TEMP }
	LTC2983 Sensor Type. More...

Functions
int	ltc2983_init (struct ltc2983_desc *, struct ltc2983_init_param )
	Device and comm init function. More...

int	ltc2983_remove (struct ltc2983_desc *)
	Remove resources allocated by the init function. More...

int	ltc2983_reg_read (struct ltc2983_desc , uint16_t, uint8_t )
	Read raw register value. More...

int	ltc2983_reg_write (struct ltc2983_desc *, uint16_t, uint8_t)
	Write raw register value. More...

int	ltc2983_reg_update_bits (struct ltc2983_desc *, uint16_t, uint8_t, uint8_t)
	Update register value. More...

int	ltc2983_setup (struct ltc2983_desc *)
	Device setup. More...

int	ltc2983_chan_read (struct ltc2983_desc , const int, int )
	Read channel data / temperature. More...

int	ltc2983_chan_read_raw (struct ltc2983_desc , const int, uint32_t )
	Read raw channel data / temperature. More...

int	ltc2983_chan_read_scale (struct ltc2983_desc , const int, uint32_t , uint32_t *)
	Set scale of raw channel data / temperature. More...

int	ltc2983_thermocouple_assign_chan (struct ltc2983_desc , const struct ltc2983_sensor )
	Channel assignment for thermocouple sensors. More...

int	ltc2983_rtd_assign_chan (struct ltc2983_desc , const struct ltc2983_sensor )
	Channel assignment for RTD sensors. More...

int	ltc2983_thermistor_assign_chan (struct ltc2983_desc , const struct ltc2983_sensor )
	Channel assignment for thermistor sensors. More...

int	ltc2983_diode_assign_chan (struct ltc2983_desc , const struct ltc2983_sensor )
	Channel assignment for diode sensors. More...

int	ltc2983_r_sense_assign_chan (struct ltc2983_desc , const struct ltc2983_sensor )
	Channel assignment for rsense. More...

int	ltc2983_adc_assign_chan (struct ltc2983_desc , const struct ltc2983_sensor )
	Channel assignment for direct ADC. More...

int	ltc2983_temp_assign_chan (struct ltc2983_desc , const struct ltc2983_sensor )

int	ltc2983_thermocouple_fault_handler (const uint32_t)
	Fault handling of thermocouple sensors. More...

int	ltc2983_common_fault_handler (const uint32_t)
	Fault handling of sensors other than thermocouple. More...

Macro Definition Documentation

◆ LTC2983_ADC_SINGLE_ENDED

#define LTC2983_ADC_SINGLE_ENDED ( x ) no_os_field_prep(LTC2983_ADC_SINGLE_ENDED_MASK, x)

◆ LTC2983_ADC_SINGLE_ENDED_MASK

#define LTC2983_ADC_SINGLE_ENDED_MASK NO_OS_BIT(26)

◆ LTC2983_CHAN_ASSIGN

#define LTC2983_CHAN_ASSIGN ( x ) no_os_field_prep(LTC2983_CHAN_ASSIGN_MASK, x)

◆ LTC2983_CHAN_ASSIGN_MASK

#define LTC2983_CHAN_ASSIGN_MASK NO_OS_GENMASK(26, 22)

◆ LTC2983_CHAN_ASSIGN_START_REG

#define LTC2983_CHAN_ASSIGN_START_REG 0x0200

◆ LTC2983_CHAN_RES_ADDR

#define LTC2983_CHAN_RES_ADDR ( chan ) (((chan - 1) * 4) + LTC2983_TEMP_RES_START_REG)

◆ LTC2983_CHAN_START_ADDR

#define LTC2983_CHAN_START_ADDR ( chan ) (((chan - 1) * 4) + LTC2983_CHAN_ASSIGN_START_REG)

◆ LTC2983_CHAN_TYPE

#define LTC2983_CHAN_TYPE ( x ) no_os_field_prep(LTC2983_CHAN_TYPE_MASK, x)

◆ LTC2983_CHAN_TYPE_MASK

#define LTC2983_CHAN_TYPE_MASK NO_OS_GENMASK(31, 27)

◆ LTC2983_COMMON_HARD_FAULT_MASK

#define LTC2983_COMMON_HARD_FAULT_MASK NO_OS_GENMASK(31, 30)

◆ LTC2983_COMMON_SOFT_FAULT_MASK

#define LTC2983_COMMON_SOFT_FAULT_MASK NO_OS_GENMASK(27, 25)

◆ LTC2983_CUST_SENS_TBL_END_REG

#define LTC2983_CUST_SENS_TBL_END_REG 0x03CF

◆ LTC2983_CUST_SENS_TBL_SIZE

#define LTC2983_CUST_SENS_TBL_SIZE

Value:

LTC2983_CUST_SENS_TBL_END_REG - \

LTC2983_CUST_SENS_TBL_START_REG + 1

◆ LTC2983_CUST_SENS_TBL_START_REG

#define LTC2983_CUST_SENS_TBL_START_REG 0x0250

◆ LTC2983_CUSTOM_ADDR

#define LTC2983_CUSTOM_ADDR ( x ) no_os_field_prep(LTC2983_CUSTOM_ADDR_MASK, x)

◆ LTC2983_CUSTOM_ADDR_MASK

#define LTC2983_CUSTOM_ADDR_MASK NO_OS_GENMASK(11, 6)

◆ LTC2983_CUSTOM_LEN

#define LTC2983_CUSTOM_LEN ( x ) no_os_field_prep(LTC2983_CUSTOM_LEN_MASK, x)

◆ LTC2983_CUSTOM_LEN_MASK

#define LTC2983_CUSTOM_LEN_MASK NO_OS_GENMASK(5, 0)

◆ LTC2983_DATA_MASK

#define LTC2983_DATA_MASK NO_OS_GENMASK(LTC2983_DATA_SIGN_BIT, 0)

◆ LTC2983_DATA_SIGN_BIT

#define LTC2983_DATA_SIGN_BIT 23

◆ LTC2983_DIODE_CFG

#define LTC2983_DIODE_CFG ( x ) no_os_field_prep(LTC2983_DIODE_CFG_MASK, x)

◆ LTC2983_DIODE_CFG_MASK

#define LTC2983_DIODE_CFG_MASK NO_OS_GENMASK(26, 24)

◆ LTC2983_DIODE_EXC_CURRENT

#define LTC2983_DIODE_EXC_CURRENT ( x ) no_os_field_prep(LTC2983_DIODE_EXC_CURRENT_MASK, x)

◆ LTC2983_DIODE_EXC_CURRENT_MASK

#define LTC2983_DIODE_EXC_CURRENT_MASK NO_OS_GENMASK(23, 22)

◆ LTC2983_DIODE_IDEAL_FACTOR

#define LTC2983_DIODE_IDEAL_FACTOR ( x ) no_os_field_prep(LTC2983_DIODE_IDEAL_FACTOR_MASK, x)

◆ LTC2983_DIODE_IDEAL_FACTOR_MASK

#define LTC2983_DIODE_IDEAL_FACTOR_MASK NO_OS_GENMASK(21, 0)

◆ LTC2983_EEPROM_KEY

#define LTC2983_EEPROM_KEY 0xA53C0F5A

◆ LTC2983_EEPROM_KEY_REG

#define LTC2983_EEPROM_KEY_REG 0x00B0

◆ LTC2983_EEPROM_READ_CMD

#define LTC2983_EEPROM_READ_CMD 0x16

◆ LTC2983_EEPROM_READ_FAILURE_MASK

#define LTC2983_EEPROM_READ_FAILURE_MASK NO_OS_GENMASK(7, 0)

◆ LTC2983_EEPROM_READ_STATUS_REG

#define LTC2983_EEPROM_READ_STATUS_REG 0x00D0

◆ LTC2983_EEPROM_READ_TIME_MS

#define LTC2983_EEPROM_READ_TIME_MS 20

◆ LTC2983_EEPROM_STATUS_FAILURE_MASK

#define LTC2983_EEPROM_STATUS_FAILURE_MASK NO_OS_GENMASK(3, 1)

◆ LTC2983_EEPROM_WRITE_CMD

#define LTC2983_EEPROM_WRITE_CMD 0x15

◆ LTC2983_EEPROM_WRITE_TIME_MS

#define LTC2983_EEPROM_WRITE_TIME_MS 2600

◆ LTC2983_GLOBAL_CONFIG_REG

#define LTC2983_GLOBAL_CONFIG_REG 0x00F0

◆ LTC2983_MUX_CONFIG_REG

#define LTC2983_MUX_CONFIG_REG 0x00FF

◆ LTC2983_NOTCH_FREQ_MASK

#define LTC2983_NOTCH_FREQ_MASK NO_OS_GENMASK(1, 0)

◆ LTC2983_R_SENSE_VAL

#define LTC2983_R_SENSE_VAL ( x ) no_os_field_prep(LTC2983_R_SENSE_VAL_MASK, x)

◆ LTC2983_R_SENSE_VAL_MASK

#define LTC2983_R_SENSE_VAL_MASK NO_OS_GENMASK(26, 0)

◆ LTC2983_RES_VALID_MASK

#define LTC2983_RES_VALID_MASK NO_OS_BIT(24)

◆ LTC2983_RTD_CFG

#define LTC2983_RTD_CFG ( x ) no_os_field_prep(LTC2983_RTD_CFG_MASK, x)

◆ LTC2983_RTD_CFG_MASK

#define LTC2983_RTD_CFG_MASK NO_OS_GENMASK(21, 18)

◆ LTC2983_RTD_CURVE

#define LTC2983_RTD_CURVE ( x ) no_os_field_prep(LTC2983_RTD_CURVE_MASK, x)

◆ LTC2983_RTD_CURVE_MASK

#define LTC2983_RTD_CURVE_MASK NO_OS_GENMASK(13, 12)

◆ LTC2983_RTD_EXC_CURRENT

#define LTC2983_RTD_EXC_CURRENT ( x ) no_os_field_prep(LTC2983_RTD_EXC_CURRENT_MASK, x)

◆ LTC2983_RTD_EXC_CURRENT_MASK

#define LTC2983_RTD_EXC_CURRENT_MASK NO_OS_GENMASK(17, 14)

◆ LTC2983_SPI_READ_BYTE

#define LTC2983_SPI_READ_BYTE 0x3

◆ LTC2983_SPI_WRITE_BYTE

#define LTC2983_SPI_WRITE_BYTE 0x2

◆ LTC2983_STATUS_CHAN_SEL

#define LTC2983_STATUS_CHAN_SEL ( x ) no_os_field_prep(LTC2983_STATUS_CHAN_SEL_MASK, x)

◆ LTC2983_STATUS_CHAN_SEL_MASK

#define LTC2983_STATUS_CHAN_SEL_MASK NO_OS_GENMASK(4, 0)

◆ LTC2983_STATUS_REG

#define LTC2983_STATUS_REG 0x0000

◆ LTC2983_STATUS_START

#define LTC2983_STATUS_START ( x ) no_os_field_prep(LTC2983_STATUS_START_MASK, x)

◆ LTC2983_STATUS_START_MASK

#define LTC2983_STATUS_START_MASK NO_OS_BIT(7)

◆ LTC2983_STATUS_UP

#define LTC2983_STATUS_UP ( reg ) no_os_field_get(LTC2983_STATUS_UP_MASK, reg)

◆ LTC2983_STATUS_UP_MASK

#define LTC2983_STATUS_UP_MASK NO_OS_GENMASK(7, 6)

◆ LTC2983_TEMP_RES_START_REG

#define LTC2983_TEMP_RES_START_REG 0x0010

◆ LTC2983_THERMISTOR_CFG

#define LTC2983_THERMISTOR_CFG ( x ) no_os_field_prep(LTC2983_THERMISTOR_CFG_MASK, x)

◆ LTC2983_THERMISTOR_CFG_MASK

#define LTC2983_THERMISTOR_CFG_MASK NO_OS_GENMASK(21, 19)

◆ LTC2983_THERMISTOR_EXC_CURRENT

#define LTC2983_THERMISTOR_EXC_CURRENT ( x ) no_os_field_prep(LTC2983_THERMISTOR_EXC_CURRENT_MASK, x)

◆ LTC2983_THERMISTOR_EXC_CURRENT_MASK

#define LTC2983_THERMISTOR_EXC_CURRENT_MASK NO_OS_GENMASK(18, 15)

◆ LTC2983_THERMOCOUPLE_CFG

#define LTC2983_THERMOCOUPLE_CFG ( x ) no_os_field_prep(LTC2983_THERMOCOUPLE_CFG_MASK, x)

◆ LTC2983_THERMOCOUPLE_CFG_MASK

#define LTC2983_THERMOCOUPLE_CFG_MASK NO_OS_GENMASK(21, 18)

◆ LTC2983_THERMOCOUPLE_HARD_FAULT_MASK

#define LTC2983_THERMOCOUPLE_HARD_FAULT_MASK NO_OS_GENMASK(31, 29)

◆ LTC2983_THERMOCOUPLE_SOFT_FAULT_MASK

#define LTC2983_THERMOCOUPLE_SOFT_FAULT_MASK NO_OS_GENMASK(28, 25)

◆ LTC2986_EEPROM_STATUS_REG

#define LTC2986_EEPROM_STATUS_REG 0x00F9

◆ to_adc

#define to_adc ( _sensor ) NO_OS_CONTAINER_OF(_sensor, struct ltc2983_adc, sensor)

◆ to_diode

#define to_diode ( _sensor ) NO_OS_CONTAINER_OF(_sensor, struct ltc2983_diode, sensor)

◆ to_rsense

#define to_rsense ( _sensor ) NO_OS_CONTAINER_OF(_sensor, struct ltc2983_rsense, sensor)

◆ to_rtd

#define to_rtd ( _sensor ) NO_OS_CONTAINER_OF(_sensor, struct ltc2983_rtd, sensor)

◆ to_temp

#define to_temp ( _sensor ) NO_OS_CONTAINER_OF(_sensor, struct ltc2983_temp, sensor)

◆ to_thermistor

#define to_thermistor ( _sensor ) NO_OS_CONTAINER_OF(_sensor, struct ltc2983_thermistor, sensor)

◆ to_thermocouple

#define to_thermocouple ( _sensor ) NO_OS_CONTAINER_OF(_sensor, struct ltc2983_thermocouple, sensor)

Enumeration Type Documentation

◆ ltc2983_filter_notch_freq

enum ltc2983_filter_notch_freq

Notch frequency of the digital filter.

Enumerator
LTC2983_50_60HZ_REJECTION
LTC2983_60HZ_REJECTION
LTC2983_50HZ_REJECTION

◆ ltc2983_sensor_type

enum ltc2983_sensor_type

LTC2983 Sensor Type.

Enumerator
LTC2983_UNASSIGNED
LTC2983_THERMOCOUPLE_J
LTC2983_THERMOCOUPLE_K
LTC2983_THERMOCOUPLE_E
LTC2983_THERMOCOUPLE_N
LTC2983_THERMOCOUPLE_R
LTC2983_THERMOCOUPLE_S
LTC2983_THERMOCOUPLE_T
LTC2983_THERMOCOUPLE_B
LTC2983_THERMOCOUPLE_CUSTOM
LTC2983_RTD_PT_10
LTC2983_RTD_PT_50
LTC2983_RTD_PT_100
LTC2983_RTD_PT_200
LTC2983_RTD_PT_500
LTC2983_RTD_PT_1000
LTC2983_RTD_1000
LTC2983_RTD_NI_120
LTC2983_RTD_CUSTOM
LTC2983_THERMISTOR_44004_44033
LTC2983_THERMISTOR_44005_44030
LTC2983_THERMISTOR_44007_44034
LTC2983_THERMISTOR_44006_44031
LTC2983_THERMISTOR_44008_44032
LTC2983_THERMISTOR_YSI_400
LTC2983_THERMISTOR_SPECTRUM_1003K
LTC2983_THERMISTOR_CUSTOM_STEINHART_HART
LTC2983_THERMISTOR_CUSTOM
LTC2983_DIODE
LTC2983_RSENSE
LTC2983_DIRECT_ADC
LTC2983_ACTIVE_TEMP

◆ ltc298x_id

enum ltc298x_id

Enumerator
ID_LTC2983
ID_LTC2984
ID_LTC2986

Function Documentation

◆ ltc2983_adc_assign_chan()

int ltc2983_adc_assign_chan	(	struct ltc2983_desc *	device,
		const struct ltc2983_sensor *	sensor
	)

Channel assignment for direct ADC.

Channel assignment for direct ADC

Parameters

device	- LTC2983 descriptor
sensor	- LTC2983 common sensor descriptor

Returns: 0 in case of success, errno errors otherwise

Here is the caller graph for this function:

◆ ltc2983_chan_read()

int ltc2983_chan_read	(	struct ltc2983_desc *	device,
		const int	chan,
		int *	val
	)

Read channel data / temperature.

Read channel data / temperature

Parameters

device	- LTC2983 descriptor
chan	- channel number
val	- channel data / temperature

Returns: 0 in case of success, errno errors otherwise

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◆ ltc2983_chan_read_raw()

int ltc2983_chan_read_raw	(	struct ltc2983_desc *	device,
		const int	chan,
		uint32_t *	val
	)

Read raw channel data / temperature.

Read raw channel data / temperature

Parameters

device	- LTC2983 descriptor
chan	- channel number
val	- raw channel data / temperature

Returns: 0 in case of success, errno errors otherwise

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◆ ltc2983_chan_read_scale()

int ltc2983_chan_read_scale	(	struct ltc2983_desc *	device,
		const int	chan,
		uint32_t *	val,
		uint32_t *	val2
	)

Set scale of raw channel data / temperature.

Set scale of raw channel data / temperature

Parameters

device	- LTC2983 descriptor
chan	- channel number
val	- scale numerator
val2	- scale denominator

Returns: 0 in case of success, errno errors otherwise

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◆ ltc2983_common_fault_handler()

int ltc2983_common_fault_handler ( const uint32_t result )

Fault handling of sensors other than thermocouple.

Fault handling of sensors other than thermocouple

Parameters

result - result captured that contains the faults

Returns: 0 in case of success, errno errors otherwise

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◆ ltc2983_diode_assign_chan()

int ltc2983_diode_assign_chan	(	struct ltc2983_desc *	device,
		const struct ltc2983_sensor *	sensor
	)

Channel assignment for diode sensors.

Channel assignment for diode sensors

Parameters

device	- LTC2983 descriptor
sensor	- LTC2983 common sensor descriptor

Returns: 0 in case of success, errno errors otherwise

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◆ ltc2983_init()

int ltc2983_init	(	struct ltc2983_desc **	device,
		struct ltc2983_init_param *	init_param
	)

Device and comm init function.

Device and comm init function

Parameters

device	- LTC2983 descriptor to be initialized
init_param	- Init parameter for descriptor

Returns: 0 in case of success, errno errors otherwise

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◆ ltc2983_r_sense_assign_chan()

int ltc2983_r_sense_assign_chan	(	struct ltc2983_desc *	device,
		const struct ltc2983_sensor *	sensor
	)

Channel assignment for rsense.

Channel assignment for rsense

Parameters

device	- LTC2983 descriptor
sensor	- LTC2983 common sensor descriptor

Returns: 0 in case of success, errno errors otherwise

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◆ ltc2983_reg_read()

int ltc2983_reg_read	(	struct ltc2983_desc *	device,
		uint16_t	reg_addr,
		uint8_t *	val
	)

Read raw register value.

Read raw register value

Parameters

device	- LTC2983 descriptor
reg_addr	- register address
val	- register value

Returns: 0 in case of success, negative error code otherwise

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◆ ltc2983_reg_update_bits()

int ltc2983_reg_update_bits	(	struct ltc2983_desc *	device,
		uint16_t	reg_addr,
		uint8_t	mask,
		uint8_t	val
	)

Update register value.

Update register value

Parameters

device	- LTC2983 descriptor
reg_addr	- register address
mask	- Mask for specific register bits to be updated
val	- register value to be written

Returns: 0 in case of success, negative error code otherwise

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◆ ltc2983_reg_write()

int ltc2983_reg_write	(	struct ltc2983_desc *	device,
		uint16_t	reg_addr,
		uint8_t	val
	)

Write raw register value.

Write raw register value

Parameters

device	- LTC2983 descriptor
reg_addr	- register address
val	- register value

Returns: 0 in case of success, negative error code otherwise

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◆ ltc2983_remove()

int ltc2983_remove ( struct ltc2983_desc * device )

Remove resources allocated by the init function.

Free resources allocated by the init function

Parameters

device - LTC2983 descriptor

Returns: 0 in case of success, errno errors otherwise

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◆ ltc2983_rtd_assign_chan()

int ltc2983_rtd_assign_chan	(	struct ltc2983_desc *	device,
		const struct ltc2983_sensor *	sensor
	)

Channel assignment for RTD sensors.

Channel assignment for RTD sensors

Parameters

device	- LTC2983 descriptor
sensor	- LTC2983 common sensor descriptor

Returns: 0 in case of success, errno errors otherwise

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◆ ltc2983_setup()

int ltc2983_setup ( struct ltc2983_desc * device )

Device setup.

Device setup

Parameters

device - LTC2983 descriptor

Returns: 0 in case of success, errno errors otherwise

make sure the device is up: start bit (7) is 0 and done bit (6) is 1

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◆ ltc2983_temp_assign_chan()

int ltc2983_temp_assign_chan	(	struct ltc2983_desc *	,
		const struct ltc2983_sensor *
	)

Channel assignment for analog temp sensor

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◆ ltc2983_thermistor_assign_chan()

int ltc2983_thermistor_assign_chan	(	struct ltc2983_desc *	device,
		const struct ltc2983_sensor *	sensor
	)

Channel assignment for thermistor sensors.

Channel assignment for thermistor sensors

Parameters

device	- LTC2983 descriptor
sensor	- LTC2983 common sensor descriptor

Returns: 0 in case of success, errno errors otherwise

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◆ ltc2983_thermocouple_assign_chan()

int ltc2983_thermocouple_assign_chan	(	struct ltc2983_desc *	device,
		const struct ltc2983_sensor *	sensor
	)

Channel assignment for thermocouple sensors.

Channel assignment for thermocouple sensors

Parameters

device	- LTC2983 descriptor
sensor	- LTC2983 common sensor descriptor

Returns: 0 in case of success, errno errors otherwise

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◆ ltc2983_thermocouple_fault_handler()

int ltc2983_thermocouple_fault_handler ( const uint32_t result )

Fault handling of thermocouple sensors.

Fault handling of thermocouple sensors

Parameters

result - result captured that contains the faults

Returns: 0 in case of success, errno errors otherwise

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Classes

Macros

Enumerations

Functions

Macro Definition Documentation

◆ LTC2983_ADC_SINGLE_ENDED

◆ LTC2983_ADC_SINGLE_ENDED_MASK

◆ LTC2983_CHAN_ASSIGN

◆ LTC2983_CHAN_ASSIGN_MASK

◆ LTC2983_CHAN_ASSIGN_START_REG

◆ LTC2983_CHAN_RES_ADDR

◆ LTC2983_CHAN_START_ADDR

◆ LTC2983_CHAN_TYPE

◆ LTC2983_CHAN_TYPE_MASK

◆ LTC2983_COMMON_HARD_FAULT_MASK

◆ LTC2983_COMMON_SOFT_FAULT_MASK

◆ LTC2983_CUST_SENS_TBL_END_REG

◆ LTC2983_CUST_SENS_TBL_SIZE

◆ LTC2983_CUST_SENS_TBL_START_REG

◆ LTC2983_CUSTOM_ADDR

◆ LTC2983_CUSTOM_ADDR_MASK

◆ LTC2983_CUSTOM_LEN

◆ LTC2983_CUSTOM_LEN_MASK

◆ LTC2983_DATA_MASK

◆ LTC2983_DATA_SIGN_BIT

◆ LTC2983_DIODE_CFG

◆ LTC2983_DIODE_CFG_MASK

◆ LTC2983_DIODE_EXC_CURRENT

◆ LTC2983_DIODE_EXC_CURRENT_MASK

◆ LTC2983_DIODE_IDEAL_FACTOR

◆ LTC2983_DIODE_IDEAL_FACTOR_MASK

◆ LTC2983_EEPROM_KEY

◆ LTC2983_EEPROM_KEY_REG

◆ LTC2983_EEPROM_READ_CMD

◆ LTC2983_EEPROM_READ_FAILURE_MASK

◆ LTC2983_EEPROM_READ_STATUS_REG

◆ LTC2983_EEPROM_READ_TIME_MS

◆ LTC2983_EEPROM_STATUS_FAILURE_MASK

◆ LTC2983_EEPROM_WRITE_CMD

◆ LTC2983_EEPROM_WRITE_TIME_MS

◆ LTC2983_GLOBAL_CONFIG_REG

◆ LTC2983_MUX_CONFIG_REG

◆ LTC2983_NOTCH_FREQ_MASK

◆ LTC2983_R_SENSE_VAL

◆ LTC2983_R_SENSE_VAL_MASK

◆ LTC2983_RES_VALID_MASK

◆ LTC2983_RTD_CFG

◆ LTC2983_RTD_CFG_MASK

◆ LTC2983_RTD_CURVE

◆ LTC2983_RTD_CURVE_MASK

◆ LTC2983_RTD_EXC_CURRENT

◆ LTC2983_RTD_EXC_CURRENT_MASK

◆ LTC2983_SPI_READ_BYTE

◆ LTC2983_SPI_WRITE_BYTE

◆ LTC2983_STATUS_CHAN_SEL

◆ LTC2983_STATUS_CHAN_SEL_MASK

◆ LTC2983_STATUS_REG

◆ LTC2983_STATUS_START

◆ LTC2983_STATUS_START_MASK

◆ LTC2983_STATUS_UP

◆ LTC2983_STATUS_UP_MASK

◆ LTC2983_TEMP_RES_START_REG

◆ LTC2983_THERMISTOR_CFG

◆ LTC2983_THERMISTOR_CFG_MASK

◆ LTC2983_THERMISTOR_EXC_CURRENT

◆ LTC2983_THERMISTOR_EXC_CURRENT_MASK

◆ LTC2983_THERMOCOUPLE_CFG

◆ LTC2983_THERMOCOUPLE_CFG_MASK

◆ LTC2983_THERMOCOUPLE_HARD_FAULT_MASK

◆ LTC2983_THERMOCOUPLE_SOFT_FAULT_MASK

◆ LTC2986_EEPROM_STATUS_REG

◆ to_adc

◆ to_diode

◆ to_rsense

◆ to_rtd

◆ to_temp

◆ to_thermistor

◆ to_thermocouple

Enumeration Type Documentation

◆ ltc2983_filter_notch_freq