#include <stdint.h>
#include <string.h>
#include "no_os_util.h"
#include "no_os_i2c.h"
#include "no_os_gpio.h"

Include dependency graph for ltc2992.h:

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

Go to the source code of this file.

Classes
struct	ltc2992_regmap

struct	ltc2992_dev

struct	ltc2992_init_param

Macros
#define	LTC2992_REG_CTRLA 0x00

#define	LTC2992_REG_CTRLB 0x01

#define	LTC2992_REG_ALERT1 0x02

#define	LTC2992_REG_FAULT1 0x03

#define	LTC2992_REG_NADC 0x04

#define	LTC2992_REG_POWER1 0x05

#define	LTC2992_REG_POWER1_MAX 0x08

#define	LTC2992_REG_POWER1_MIN 0x0B

#define	LTC2992_REG_POWER1_MAX_THRESH 0x0E

#define	LTC2992_REG_POWER1_MIN_THRESH 0x11

#define	LTC2992_REG_DSENSE1 0x14

#define	LTC2992_REG_DSENSE1_MAX 0x16

#define	LTC2992_REG_DSENSE1_MIN 0x18

#define	LTC2992_REG_DSENSE1_MAX_THRESH 0x1A

#define	LTC2992_REG_DSENSE1_MIN_THRESH 0x1C

#define	LTC2992_REG_SENSE1 0x1E

#define	LTC2992_REG_SENSE1_MAX 0x20

#define	LTC2992_REG_SENSE1_MIN 0x22

#define	LTC2992_REG_SENSE1_MAX_THRESH 0x24

#define	LTC2992_REG_SENSE1_MIN_THRESH 0x26

#define	LTC2992_REG_G1 0x28

#define	LTC2992_REG_G1_MAX 0x2A

#define	LTC2992_REG_G1_MIN 0x2C

#define	LTC2992_REG_G1_MAX_THRESH 0x2E

#define	LTC2992_REG_G1_MIN_THRESH 0x30

#define	LTC2992_REG_ALERT2 0x34

#define	LTC2992_REG_FAULT2 0x35

#define	LTC2992_REG_G2 0x5A

#define	LTC2992_REG_G2_MAX 0x5C

#define	LTC2992_REG_G2_MIN 0x5E

#define	LTC2992_REG_G2_MAX_THRESH 0x60

#define	LTC2992_REG_G2_MIN_THRESH 0x62

#define	LTC2992_REG_G3 0x64

#define	LTC2992_REG_G3_MAX 0x66

#define	LTC2992_REG_G3_MIN 0x68

#define	LTC2992_REG_G3_MAX_THRESH 0x6A

#define	LTC2992_REG_G3_MIN_THRESH 0x6C

#define	LTC2992_REG_G4 0x6E

#define	LTC2992_REG_G4_MAX 0x70

#define	LTC2992_REG_G4_MIN 0x72

#define	LTC2992_REG_G4_MAX_THRESH 0x74

#define	LTC2992_REG_G4_MIN_THRESH 0x76

#define	LTC2992_REG_ISUM 0x78

#define	LTC2992_REG_ISUM_MAX 0x7A

#define	LTC2992_REG_ISUM_MIN 0x7C

#define	LTC2992_REG_ISUM_MAX_THRESH 0x7E

#define	LTC2992_REG_ISUM_MIN_THRESH 0x80

#define	LTC2992_REG_PSUM 0x82

#define	LTC2992_REG_PSUM_MAX 0x85

#define	LTC2992_REG_PSUM_MIN 0x88

#define	LTC2992_REG_PSUM_MAX_THRESH 0x8B

#define	LTC2992_REG_PSUM_MIN_THRESH 0x8E

#define	LTC2992_REG_ALERT3 0x91

#define	LTC2992_REG_FAULT3 0x92

#define	LTC2992_REG_GPIO_STATUS 0x95

#define	LTC2992_REG_GPIO_IO_CTRL 0x96

#define	LTC2992_REG_GPIO4_CTRL 0x97

#define	LTC2992_REG_MFR_SPECIAL_ID 0xE7

#define	LTC2992_REG_POWER(x) (LTC2992_REG_POWER1 + ((x) * 0x32))

#define	LTC2992_REG_POWER_MAX(x) (LTC2992_REG_POWER1_MAX + ((x) * 0x32))

#define	LTC2992_REG_POWER_MIN(x) (LTC2992_REG_POWER1_MIN + ((x) * 0x32))

#define	LTC2992_REG_POWER_MAX_THRESH(x) (LTC2992_REG_POWER1_MAX_THRESH + ((x) * 0x32))

#define	LTC2992_REG_POWER_MIN_THRESH(x) (LTC2992_REG_POWER1_MIN_THRESH + ((x) * 0x32))

#define	LTC2992_REG_DSENSE(x) (LTC2992_REG_DSENSE1 + ((x) * 0x32))

#define	LTC2992_REG_DSENSE_MAX(x) (LTC2992_REG_DSENSE1_MAX + ((x) * 0x32))

#define	LTC2992_REG_DSENSE_MIN(x) (LTC2992_REG_DSENSE1_MIN + ((x) * 0x32))

#define	LTC2992_REG_DSENSE_MAX_THRESH(x) (LTC2992_REG_DSENSE1_MAX_THRESH + ((x) * 0x32))

#define	LTC2992_REG_DSENSE_MIN_THRESH(x) (LTC2992_REG_DSENSE1_MIN_THRESH + ((x) * 0x32))

#define	LTC2992_REG_SENSE(x) (LTC2992_REG_SENSE1 + ((x) * 0x32))

#define	LTC2992_REG_SENSE_MAX(x) (LTC2992_REG_SENSE1_MAX + ((x) * 0x32))

#define	LTC2992_REG_SENSE_MIN(x) (LTC2992_REG_SENSE1_MIN + ((x) * 0x32))

#define	LTC2992_REG_SENSE_MAX_THRESH(x) (LTC2992_REG_SENSE1_MAX_THRESH + ((x) * 0x32))

#define	LTC2992_REG_SENSE_MIN_THRESH(x) (LTC2992_REG_SENSE1_MIN_THRESH + ((x) * 0x32))

#define	LTC2992_REG_POWER_FAULT(x) (LTC2992_REG_FAULT1 + ((x) * 0x32))

#define	LTC2992_REG_SENSE_FAULT(x) (LTC2992_REG_FAULT1 + ((x) * 0x32))

#define	LTC2992_REG_DSENSE_FAULT(x) (LTC2992_REG_FAULT1 + ((x) * 0x32))

#define	LTC2992_OFFSET_CAL_MSK NO_OS_BIT(7)

#define	LTC2992_MEASURE_MODE_MSK NO_OS_GENMASK(6,5)

#define	LTC2992_VSEL_CON_MSK NO_OS_GENMASK(4,3)

#define	LTC2992_VSEL_SNAP_MSK NO_OS_GENMASK(2,0)

#define	LTC2992_POWER_ALERT_MSK NO_OS_GENMASK(7,6)

#define	LTC2992_DSENSE_ALERT_MSK NO_OS_GENMASK(5,4)

#define	LTC2992_SENSE_ALERT_MSK NO_OS_GENMASK(3,2)

#define	LTC2992_ISUM_ALERT_MSK NO_OS_GENMASK(3,2)

#define	LTC2992_PSUM_ALERT_MSK NO_OS_GENMASK(1,0)

#define	LTC2992_POWER_FAULT_MSK NO_OS_GENMASK(7,6)

#define	LTC2992_DSENSE_FAULT_MSK NO_OS_GENMASK(5,4)

#define	LTC2992_SENSE_FAULT_MSK NO_OS_GENMASK(3,2)

#define	LTC2992_ISUM_FAULT_MSK NO_OS_GENMASK(3,2)

#define	LTC2992_PSUM_FAULT_MSK NO_OS_GENMASK(1,0)

#define	LTC2992_12B_SENSE_VAL_MSK NO_OS_GENMASK(15,4)

#define	LTC2992_12B_POWER_VAL_MSK NO_OS_GENMASK(23,0)

#define	LTC2992_8B_SENSE_VAL_MSK NO_OS_GENMASK(15,8)

#define	LTC2992_8B_POWER_VAL_MSK NO_OS_GENMASK(23,8)

#define	LTC2992_G1_FAULT_ALERT_MSK 0x03

#define	LTC2992_G2_FAULT_ALERT_MSK 0x03

#define	LTC2992_G3_FAULT_ALERT_MSK 0xC0

#define	LTC2992_G4_FAULT_ALERT_MSK 0x30

#define	LTC2992_ALERT_CLR_BIT NO_OS_BIT(7)

#define	LTC2992_READ_CTRL_BIT NO_OS_BIT(5)

#define	LTC2992_STUCK_BUS_TIMEOUT_BIT NO_OS_BIT(4)

#define	LTC2992_PEAK_RST_BIT NO_OS_BIT(3)

#define	LTC2992_RESET_BIT NO_OS_BIT(0)

#define	LTC2992_G4_ALERT_PIN_BIT NO_OS_BIT(7)

#define	LTC2992_G1_CTRL_BIT NO_OS_BIT(7)

#define	LTC2992_G2_CTRL_BIT NO_OS_BIT(6)

#define	LTC2992_G3_CTRL_BIT NO_OS_BIT(0)

#define	LTC2992_G4_CTRL_BIT NO_OS_BIT(6)

#define	LTC2992_MFR_ID_VALUE 0x62

#define	LTC2992_RESOLUTION_POS 7

Enumerations
enum	ltc2992_adr_state { LTC2992_ADR_HIGH, LTC2992_ADR_LOW, LTC2992_ADR_NC }

enum	ltc2992_gpio { LTC2992_GPIO1, LTC2992_GPIO2, LTC2992_GPIO3, LTC2992_GPIO4 }

enum	ltc2992_gpio_output { LTC2992_GPIO_OUTPUT_HI_Z, LTC2992_GPIO_OUTPUT_PULL_LOW }

enum	ltc2992_sense { LTC2992_SENSE1, LTC2992_SENSE2 }

enum	ltc2992_channel { LTC2992_VOLTAGE, LTC2992_VSHUNT, LTC2992_CURRENT, LTC2992_POWER, LTC2992_ISUM, LTC2992_PSUM }

enum	ltc2992_calibration { LTC2992_CALIBRATE_ALWAYS, LTC2992_CALIBRATE_ON_DEMAND }

enum	ltc2992_measure_mode { LTC2992_MODE_CONTINUOUS, LTC2992_MODE_SNAPSHOT, LTC2992_MODE_SINGLE_CYCLE, LTC2992_MODE_SHUTDOWN }

enum	ltc2992_continuous_vsel { LTC2992_CONT_VSEL_ALL, LTC2992_CONT_VSEL_SENSE_ONLY, LTC2992_CONT_VSEL_GPIO1_GPIO2, LTC2992_CONT_VSEL_GPIOS_ONLY }

enum	ltc2992_snapshot_vsel { LTC2992_SNAP_VSEL_SENSE1, LTC2992_SNAP_VSEL_SENSE2, LTC2992_SNAP_VSEL_GPIO1, LTC2992_SNAP_VSEL_GPIO2, LTC2992_SNAP_VSEL_GPIO3, LTC2992_SNAP_VSEL_GPIO4, LTC2992_SNAP_VSEL_SENSE1_SENSE2, LTC2992_SNAP_VSEL_GPIO1_GPIO2 }

enum	ltc2992_resolution { LTC2992_RESOLUTION_12_BIT, LTC2992_RESOLUTION_8_BIT }

enum	ltc2992_alert_value { LTC2992_ALERT_DISABLE_ALL, LTC2992_ALERT_ENABLE_UV, LTC2992_ALERT_ENABLE_OV, LTC2992_ALERT_ENABLE_ALL }

enum	ltc2992_fault_status { LTC2992_FAULT_NONE, LTC2992_FAULT_UNDERVALUE, LTC2992_FAULT_OVERVALUE, LTC2992_FAULT_ALL }

Functions
int	ltc2992_addr_gen (struct ltc2992_init_param *init_param, enum ltc2992_adr_state a0, enum ltc2992_adr_state a1)
	Generate device I2C address based on ADR pin states. More...

int	ltc2992_init (struct ltc2992_dev *device, struct ltc2992_init_param init_param)
	Initialize communication peripheral for the device. More...

int	ltc2992_remove (struct ltc2992_dev *dev)
	Free resources allocated to the device. More...

int	ltc2992_read_reg (struct ltc2992_dev dev, uint8_t addr, uint32_t data, uint8_t num_bytes)
	Read raw data from device register. More...

int	ltc2992_write_reg (struct ltc2992_dev *dev, uint8_t addr, uint32_t value, uint8_t num_bytes)
	Write raw data to device register. More...

int	ltc2992_update_reg (struct ltc2992_dev *dev, uint8_t addr, uint8_t mask, uint8_t val)
	Update register value in the device. More...

int	ltc2992_get_voltage (struct ltc2992_dev dev, enum ltc2992_sense sense, uint32_t voltage_data)
	Read bus voltage in a sense channel. More...

int	ltc2992_get_vshunt (struct ltc2992_dev dev, enum ltc2992_sense sense, uint32_t vshunt_data)
	Read shunt voltage in a sense channel. More...

int	ltc2992_get_current (struct ltc2992_dev dev, enum ltc2992_sense sense, uint32_t current_data)
	Read bus current along a sense channel. More...

int	ltc2992_get_power (struct ltc2992_dev dev, enum ltc2992_sense sense, uint32_t power_data)
	Read bus power output in a sense channel. More...

int	ltc2992_get_sum (struct ltc2992_dev dev, enum ltc2992_channel chan, uint32_t sum_data)
	Read the shunt voltage sum or power sum of both sense channels. More...

int	ltc2992_get_sense_data (struct ltc2992_dev dev, enum ltc2992_sense sense, enum ltc2992_channel chan, uint32_t data)
	Read sense data at a SENSE channel. More...

int	ltc2992_get_max_data (struct ltc2992_dev dev, enum ltc2992_sense sense, enum ltc2992_channel chan, uint32_t data)
	Read maximum sense data at a SENSE channel. More...

int	ltc2992_get_min_data (struct ltc2992_dev dev, enum ltc2992_sense sense, enum ltc2992_channel chan, uint32_t data)
	Read minimum sense data at a SENSE channel. More...

int	ltc2992_set_max_thresh (struct ltc2992_dev *dev, enum ltc2992_sense sense, enum ltc2992_channel chan, uint32_t thresh_value)
	Set upper thresh level for alert at a SENSE channel. More...

int	ltc2992_set_min_thresh (struct ltc2992_dev *dev, enum ltc2992_sense sense, enum ltc2992_channel chan, uint32_t thresh_value)
	Set lower thresh level for alert at a SENSE channel. More...

int	ltc2992_set_alert (struct ltc2992_dev *dev, enum ltc2992_sense sense, enum ltc2992_channel chan, enum ltc2992_alert_value alert)
	Enable alert. More...

int	ltc2992_get_fault (struct ltc2992_dev dev, enum ltc2992_sense sense, enum ltc2992_channel chan, enum ltc2992_fault_status fault)
	Get fault status. More...

int	ltc2992_clear_fault (struct ltc2992_dev *dev, enum ltc2992_sense sense, enum ltc2992_channel chan)
	Clear fault status. More...

int	ltc2992_get_gpio_data (struct ltc2992_dev dev, enum ltc2992_gpio gpio, uint32_t gpio_data)
	Get data from a GPIO data converter. More...

int	ltc2992_get_gpio_max_data (struct ltc2992_dev dev, enum ltc2992_gpio gpio, uint32_t gpio_data)
	Get maximum data from a GPIO data converter. More...

int	ltc2992_get_gpio_min_data (struct ltc2992_dev dev, enum ltc2992_gpio gpio, uint32_t gpio_data)
	Get minimum data from a GPIO data converter. More...

int	ltc2992_set_gpio_max_thresh (struct ltc2992_dev *dev, enum ltc2992_gpio gpio, uint32_t thresh_value)
	Set upper threshold level in a GPIO. More...

int	ltc2992_set_gpio_min_thresh (struct ltc2992_dev *dev, enum ltc2992_gpio gpio, uint32_t thresh_value)
	Set lower threshold level in a GPIO. More...

int	ltc2992_set_gpio_alert (struct ltc2992_dev *dev, enum ltc2992_gpio gpio, enum ltc2992_alert_value alert_value)
	Enable alert when GPIO level reaches beyond threshold limit. More...

int	ltc2992_get_gpio_fault (struct ltc2992_dev dev, enum ltc2992_gpio gpio, enum ltc2992_fault_status fault)
	Get GPIO fault status. More...

int	ltc2992_clear_gpio_fault (struct ltc2992_dev *dev, enum ltc2992_gpio gpio)
	Clear GPIO fault status. More...

int	ltc2992_reset_alert_pin (struct ltc2992_dev *dev)
	Reset alert pin (GPI04) status. More...

int	ltc2992_get_gpio_state (struct ltc2992_dev dev, enum ltc2992_gpio gpio, uint8_t state)
	Get GPIO state. More...

int	ltc2992_set_gpio_output (struct ltc2992_dev *dev, enum ltc2992_gpio gpio, enum ltc2992_gpio_output output)
	Set GPIO output. More...

Macro Definition Documentation

◆ LTC2992_12B_POWER_VAL_MSK

#define LTC2992_12B_POWER_VAL_MSK NO_OS_GENMASK(23,0)

◆ LTC2992_12B_SENSE_VAL_MSK

#define LTC2992_12B_SENSE_VAL_MSK NO_OS_GENMASK(15,4)

◆ LTC2992_8B_POWER_VAL_MSK

#define LTC2992_8B_POWER_VAL_MSK NO_OS_GENMASK(23,8)

◆ LTC2992_8B_SENSE_VAL_MSK

#define LTC2992_8B_SENSE_VAL_MSK NO_OS_GENMASK(15,8)

◆ LTC2992_ALERT_CLR_BIT

#define LTC2992_ALERT_CLR_BIT NO_OS_BIT(7)

◆ LTC2992_DSENSE_ALERT_MSK

#define LTC2992_DSENSE_ALERT_MSK NO_OS_GENMASK(5,4)

◆ LTC2992_DSENSE_FAULT_MSK

#define LTC2992_DSENSE_FAULT_MSK NO_OS_GENMASK(5,4)

◆ LTC2992_G1_CTRL_BIT

#define LTC2992_G1_CTRL_BIT NO_OS_BIT(7)

◆ LTC2992_G1_FAULT_ALERT_MSK

#define LTC2992_G1_FAULT_ALERT_MSK 0x03

◆ LTC2992_G2_CTRL_BIT

#define LTC2992_G2_CTRL_BIT NO_OS_BIT(6)

◆ LTC2992_G2_FAULT_ALERT_MSK

#define LTC2992_G2_FAULT_ALERT_MSK 0x03

◆ LTC2992_G3_CTRL_BIT

#define LTC2992_G3_CTRL_BIT NO_OS_BIT(0)

◆ LTC2992_G3_FAULT_ALERT_MSK

#define LTC2992_G3_FAULT_ALERT_MSK 0xC0

◆ LTC2992_G4_ALERT_PIN_BIT

#define LTC2992_G4_ALERT_PIN_BIT NO_OS_BIT(7)

◆ LTC2992_G4_CTRL_BIT

#define LTC2992_G4_CTRL_BIT NO_OS_BIT(6)

◆ LTC2992_G4_FAULT_ALERT_MSK

#define LTC2992_G4_FAULT_ALERT_MSK 0x30

◆ LTC2992_ISUM_ALERT_MSK

#define LTC2992_ISUM_ALERT_MSK NO_OS_GENMASK(3,2)

◆ LTC2992_ISUM_FAULT_MSK

#define LTC2992_ISUM_FAULT_MSK NO_OS_GENMASK(3,2)

◆ LTC2992_MEASURE_MODE_MSK

#define LTC2992_MEASURE_MODE_MSK NO_OS_GENMASK(6,5)

◆ LTC2992_MFR_ID_VALUE

#define LTC2992_MFR_ID_VALUE 0x62

◆ LTC2992_OFFSET_CAL_MSK

#define LTC2992_OFFSET_CAL_MSK NO_OS_BIT(7)

◆ LTC2992_PEAK_RST_BIT

#define LTC2992_PEAK_RST_BIT NO_OS_BIT(3)

◆ LTC2992_POWER_ALERT_MSK

#define LTC2992_POWER_ALERT_MSK NO_OS_GENMASK(7,6)

◆ LTC2992_POWER_FAULT_MSK

#define LTC2992_POWER_FAULT_MSK NO_OS_GENMASK(7,6)

◆ LTC2992_PSUM_ALERT_MSK

#define LTC2992_PSUM_ALERT_MSK NO_OS_GENMASK(1,0)

◆ LTC2992_PSUM_FAULT_MSK

#define LTC2992_PSUM_FAULT_MSK NO_OS_GENMASK(1,0)

◆ LTC2992_READ_CTRL_BIT

#define LTC2992_READ_CTRL_BIT NO_OS_BIT(5)

◆ LTC2992_REG_ALERT1

#define LTC2992_REG_ALERT1 0x02

◆ LTC2992_REG_ALERT2

#define LTC2992_REG_ALERT2 0x34

◆ LTC2992_REG_ALERT3

#define LTC2992_REG_ALERT3 0x91

◆ LTC2992_REG_CTRLA

#define LTC2992_REG_CTRLA 0x00

◆ LTC2992_REG_CTRLB

#define LTC2992_REG_CTRLB 0x01

◆ LTC2992_REG_DSENSE

#define LTC2992_REG_DSENSE ( x ) (LTC2992_REG_DSENSE1 + ((x) * 0x32))

◆ LTC2992_REG_DSENSE1

#define LTC2992_REG_DSENSE1 0x14

◆ LTC2992_REG_DSENSE1_MAX

#define LTC2992_REG_DSENSE1_MAX 0x16

◆ LTC2992_REG_DSENSE1_MAX_THRESH

#define LTC2992_REG_DSENSE1_MAX_THRESH 0x1A

◆ LTC2992_REG_DSENSE1_MIN

#define LTC2992_REG_DSENSE1_MIN 0x18

◆ LTC2992_REG_DSENSE1_MIN_THRESH

#define LTC2992_REG_DSENSE1_MIN_THRESH 0x1C

◆ LTC2992_REG_DSENSE_FAULT

#define LTC2992_REG_DSENSE_FAULT ( x ) (LTC2992_REG_FAULT1 + ((x) * 0x32))

◆ LTC2992_REG_DSENSE_MAX

#define LTC2992_REG_DSENSE_MAX ( x ) (LTC2992_REG_DSENSE1_MAX + ((x) * 0x32))

◆ LTC2992_REG_DSENSE_MAX_THRESH

#define LTC2992_REG_DSENSE_MAX_THRESH ( x ) (LTC2992_REG_DSENSE1_MAX_THRESH + ((x) * 0x32))

◆ LTC2992_REG_DSENSE_MIN

#define LTC2992_REG_DSENSE_MIN ( x ) (LTC2992_REG_DSENSE1_MIN + ((x) * 0x32))

◆ LTC2992_REG_DSENSE_MIN_THRESH

#define LTC2992_REG_DSENSE_MIN_THRESH ( x ) (LTC2992_REG_DSENSE1_MIN_THRESH + ((x) * 0x32))

◆ LTC2992_REG_FAULT1

#define LTC2992_REG_FAULT1 0x03

◆ LTC2992_REG_FAULT2

#define LTC2992_REG_FAULT2 0x35

◆ LTC2992_REG_FAULT3

#define LTC2992_REG_FAULT3 0x92

◆ LTC2992_REG_G1

#define LTC2992_REG_G1 0x28

◆ LTC2992_REG_G1_MAX

#define LTC2992_REG_G1_MAX 0x2A

◆ LTC2992_REG_G1_MAX_THRESH

#define LTC2992_REG_G1_MAX_THRESH 0x2E

◆ LTC2992_REG_G1_MIN

#define LTC2992_REG_G1_MIN 0x2C

◆ LTC2992_REG_G1_MIN_THRESH

#define LTC2992_REG_G1_MIN_THRESH 0x30

◆ LTC2992_REG_G2

#define LTC2992_REG_G2 0x5A

◆ LTC2992_REG_G2_MAX

#define LTC2992_REG_G2_MAX 0x5C

◆ LTC2992_REG_G2_MAX_THRESH

#define LTC2992_REG_G2_MAX_THRESH 0x60

◆ LTC2992_REG_G2_MIN

#define LTC2992_REG_G2_MIN 0x5E

◆ LTC2992_REG_G2_MIN_THRESH

#define LTC2992_REG_G2_MIN_THRESH 0x62

◆ LTC2992_REG_G3

#define LTC2992_REG_G3 0x64

◆ LTC2992_REG_G3_MAX

#define LTC2992_REG_G3_MAX 0x66

◆ LTC2992_REG_G3_MAX_THRESH

#define LTC2992_REG_G3_MAX_THRESH 0x6A

◆ LTC2992_REG_G3_MIN

#define LTC2992_REG_G3_MIN 0x68

◆ LTC2992_REG_G3_MIN_THRESH

#define LTC2992_REG_G3_MIN_THRESH 0x6C

◆ LTC2992_REG_G4

#define LTC2992_REG_G4 0x6E

◆ LTC2992_REG_G4_MAX

#define LTC2992_REG_G4_MAX 0x70

◆ LTC2992_REG_G4_MAX_THRESH

#define LTC2992_REG_G4_MAX_THRESH 0x74

◆ LTC2992_REG_G4_MIN

#define LTC2992_REG_G4_MIN 0x72

◆ LTC2992_REG_G4_MIN_THRESH

#define LTC2992_REG_G4_MIN_THRESH 0x76

◆ LTC2992_REG_GPIO4_CTRL

#define LTC2992_REG_GPIO4_CTRL 0x97

◆ LTC2992_REG_GPIO_IO_CTRL

#define LTC2992_REG_GPIO_IO_CTRL 0x96

◆ LTC2992_REG_GPIO_STATUS

#define LTC2992_REG_GPIO_STATUS 0x95

◆ LTC2992_REG_ISUM

#define LTC2992_REG_ISUM 0x78

◆ LTC2992_REG_ISUM_MAX

#define LTC2992_REG_ISUM_MAX 0x7A

◆ LTC2992_REG_ISUM_MAX_THRESH

#define LTC2992_REG_ISUM_MAX_THRESH 0x7E

◆ LTC2992_REG_ISUM_MIN

#define LTC2992_REG_ISUM_MIN 0x7C

◆ LTC2992_REG_ISUM_MIN_THRESH

#define LTC2992_REG_ISUM_MIN_THRESH 0x80

◆ LTC2992_REG_MFR_SPECIAL_ID

#define LTC2992_REG_MFR_SPECIAL_ID 0xE7

◆ LTC2992_REG_NADC

#define LTC2992_REG_NADC 0x04

◆ LTC2992_REG_POWER

#define LTC2992_REG_POWER ( x ) (LTC2992_REG_POWER1 + ((x) * 0x32))

◆ LTC2992_REG_POWER1

#define LTC2992_REG_POWER1 0x05

◆ LTC2992_REG_POWER1_MAX

#define LTC2992_REG_POWER1_MAX 0x08

◆ LTC2992_REG_POWER1_MAX_THRESH

#define LTC2992_REG_POWER1_MAX_THRESH 0x0E

◆ LTC2992_REG_POWER1_MIN

#define LTC2992_REG_POWER1_MIN 0x0B

◆ LTC2992_REG_POWER1_MIN_THRESH

#define LTC2992_REG_POWER1_MIN_THRESH 0x11

◆ LTC2992_REG_POWER_FAULT

#define LTC2992_REG_POWER_FAULT ( x ) (LTC2992_REG_FAULT1 + ((x) * 0x32))

◆ LTC2992_REG_POWER_MAX

#define LTC2992_REG_POWER_MAX ( x ) (LTC2992_REG_POWER1_MAX + ((x) * 0x32))

◆ LTC2992_REG_POWER_MAX_THRESH

#define LTC2992_REG_POWER_MAX_THRESH ( x ) (LTC2992_REG_POWER1_MAX_THRESH + ((x) * 0x32))

◆ LTC2992_REG_POWER_MIN

#define LTC2992_REG_POWER_MIN ( x ) (LTC2992_REG_POWER1_MIN + ((x) * 0x32))

◆ LTC2992_REG_POWER_MIN_THRESH

#define LTC2992_REG_POWER_MIN_THRESH ( x ) (LTC2992_REG_POWER1_MIN_THRESH + ((x) * 0x32))

◆ LTC2992_REG_PSUM

#define LTC2992_REG_PSUM 0x82

◆ LTC2992_REG_PSUM_MAX

#define LTC2992_REG_PSUM_MAX 0x85

◆ LTC2992_REG_PSUM_MAX_THRESH

#define LTC2992_REG_PSUM_MAX_THRESH 0x8B

◆ LTC2992_REG_PSUM_MIN

#define LTC2992_REG_PSUM_MIN 0x88

◆ LTC2992_REG_PSUM_MIN_THRESH

#define LTC2992_REG_PSUM_MIN_THRESH 0x8E

◆ LTC2992_REG_SENSE

#define LTC2992_REG_SENSE ( x ) (LTC2992_REG_SENSE1 + ((x) * 0x32))

◆ LTC2992_REG_SENSE1

#define LTC2992_REG_SENSE1 0x1E

◆ LTC2992_REG_SENSE1_MAX

#define LTC2992_REG_SENSE1_MAX 0x20

◆ LTC2992_REG_SENSE1_MAX_THRESH

#define LTC2992_REG_SENSE1_MAX_THRESH 0x24

◆ LTC2992_REG_SENSE1_MIN

#define LTC2992_REG_SENSE1_MIN 0x22

◆ LTC2992_REG_SENSE1_MIN_THRESH

#define LTC2992_REG_SENSE1_MIN_THRESH 0x26

◆ LTC2992_REG_SENSE_FAULT

#define LTC2992_REG_SENSE_FAULT ( x ) (LTC2992_REG_FAULT1 + ((x) * 0x32))

◆ LTC2992_REG_SENSE_MAX

#define LTC2992_REG_SENSE_MAX ( x ) (LTC2992_REG_SENSE1_MAX + ((x) * 0x32))

◆ LTC2992_REG_SENSE_MAX_THRESH

#define LTC2992_REG_SENSE_MAX_THRESH ( x ) (LTC2992_REG_SENSE1_MAX_THRESH + ((x) * 0x32))

◆ LTC2992_REG_SENSE_MIN

#define LTC2992_REG_SENSE_MIN ( x ) (LTC2992_REG_SENSE1_MIN + ((x) * 0x32))

◆ LTC2992_REG_SENSE_MIN_THRESH

#define LTC2992_REG_SENSE_MIN_THRESH ( x ) (LTC2992_REG_SENSE1_MIN_THRESH + ((x) * 0x32))

◆ LTC2992_RESET_BIT

#define LTC2992_RESET_BIT NO_OS_BIT(0)

◆ LTC2992_RESOLUTION_POS

#define LTC2992_RESOLUTION_POS 7

◆ LTC2992_SENSE_ALERT_MSK

#define LTC2992_SENSE_ALERT_MSK NO_OS_GENMASK(3,2)

◆ LTC2992_SENSE_FAULT_MSK

#define LTC2992_SENSE_FAULT_MSK NO_OS_GENMASK(3,2)

◆ LTC2992_STUCK_BUS_TIMEOUT_BIT

#define LTC2992_STUCK_BUS_TIMEOUT_BIT NO_OS_BIT(4)

◆ LTC2992_VSEL_CON_MSK

#define LTC2992_VSEL_CON_MSK NO_OS_GENMASK(4,3)

◆ LTC2992_VSEL_SNAP_MSK

#define LTC2992_VSEL_SNAP_MSK NO_OS_GENMASK(2,0)

Enumeration Type Documentation

◆ ltc2992_adr_state

enum ltc2992_adr_state

Enumerator
LTC2992_ADR_HIGH
LTC2992_ADR_LOW
LTC2992_ADR_NC

◆ ltc2992_alert_value

enum ltc2992_alert_value

Enumerator
LTC2992_ALERT_DISABLE_ALL
LTC2992_ALERT_ENABLE_UV
LTC2992_ALERT_ENABLE_OV
LTC2992_ALERT_ENABLE_ALL

◆ ltc2992_calibration

enum ltc2992_calibration

Enumerator
LTC2992_CALIBRATE_ALWAYS
LTC2992_CALIBRATE_ON_DEMAND

◆ ltc2992_channel

enum ltc2992_channel

Enumerator
LTC2992_VOLTAGE
LTC2992_VSHUNT
LTC2992_CURRENT
LTC2992_POWER
LTC2992_ISUM
LTC2992_PSUM

◆ ltc2992_continuous_vsel

enum ltc2992_continuous_vsel

Enumerator
LTC2992_CONT_VSEL_ALL
LTC2992_CONT_VSEL_SENSE_ONLY
LTC2992_CONT_VSEL_GPIO1_GPIO2
LTC2992_CONT_VSEL_GPIOS_ONLY

◆ ltc2992_fault_status

enum ltc2992_fault_status

Enumerator
LTC2992_FAULT_NONE
LTC2992_FAULT_UNDERVALUE
LTC2992_FAULT_OVERVALUE
LTC2992_FAULT_ALL

◆ ltc2992_gpio

enum ltc2992_gpio

Enumerator
LTC2992_GPIO1
LTC2992_GPIO2
LTC2992_GPIO3
LTC2992_GPIO4

◆ ltc2992_gpio_output

enum ltc2992_gpio_output

Enumerator
LTC2992_GPIO_OUTPUT_HI_Z
LTC2992_GPIO_OUTPUT_PULL_LOW

◆ ltc2992_measure_mode

enum ltc2992_measure_mode

Enumerator
LTC2992_MODE_CONTINUOUS
LTC2992_MODE_SNAPSHOT
LTC2992_MODE_SINGLE_CYCLE
LTC2992_MODE_SHUTDOWN

◆ ltc2992_resolution

enum ltc2992_resolution

Enumerator
LTC2992_RESOLUTION_12_BIT
LTC2992_RESOLUTION_8_BIT

◆ ltc2992_sense

enum ltc2992_sense

Enumerator
LTC2992_SENSE1
LTC2992_SENSE2

◆ ltc2992_snapshot_vsel

enum ltc2992_snapshot_vsel

Enumerator
LTC2992_SNAP_VSEL_SENSE1
LTC2992_SNAP_VSEL_SENSE2
LTC2992_SNAP_VSEL_GPIO1
LTC2992_SNAP_VSEL_GPIO2
LTC2992_SNAP_VSEL_GPIO3
LTC2992_SNAP_VSEL_GPIO4
LTC2992_SNAP_VSEL_SENSE1_SENSE2
LTC2992_SNAP_VSEL_GPIO1_GPIO2

Function Documentation

◆ ltc2992_addr_gen()

int ltc2992_addr_gen	(	struct ltc2992_init_param *	init_param,
		enum ltc2992_adr_state	a0,
		enum ltc2992_adr_state	a1
	)

Generate device I2C address based on ADR pin states.

Parameters

init_param	- Initialization parameter.
a0	- ADR0 state. Example: LTC2992_ADR_HIGH - ADR at high logic level. LTC2992_ADR_LOW - ADR at ground.. LTC2992_ADR_NC - ADR not connected.
a1	- ADR1 state. Example: LTC2992_ADR_HIGH - ADR at high logic level. LTC2992_ADR_LOW - ADR at ground. LTC2992_ADR_NC - ADR not connected.

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

◆ ltc2992_clear_fault()

int ltc2992_clear_fault	(	struct ltc2992_dev *	dev,
		enum ltc2992_sense	sense,
		enum ltc2992_channel	chan
	)

Clear fault status.

Parameters

dev	- The device structure.
sense	- Sense channel. Example: LTC2992_SENSE1 LTC2992_SENSE2
chan	- Measured data channel. Example: LTC2992_VOLTAGE LTC2992_VSHUNT LTC2992_CURRENT LTC2992_POWER LTC2992_ISUM LTC2992_PSUM

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

◆ ltc2992_clear_gpio_fault()

int ltc2992_clear_gpio_fault	(	struct ltc2992_dev *	dev,
		enum ltc2992_gpio	gpio
	)

Clear GPIO fault status.

Parameters

dev	- The device structure.
gpio	- GPIO to clear fault. Example: LTC2992_GPIO1 LTC2992_GPIO2 LTC2992_GPIO3 LTC2992_GPIO4

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

◆ ltc2992_get_current()

int ltc2992_get_current	(	struct ltc2992_dev *	dev,
		enum ltc2992_sense	sense,
		uint32_t *	current_data
	)

Read bus current along a sense channel.

Parameters

dev	- The device structure.
sense	- Sense channel. Example: LTC2992_SENSE1 - Read in SENSE1 channel. LTC2992_SENSE2 - Read in SENSE2 channel.
current_data	- Current read in milliamperes.

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

Here is the caller graph for this function:

◆ ltc2992_get_fault()

int ltc2992_get_fault	(	struct ltc2992_dev *	dev,
		enum ltc2992_sense	sense,
		enum ltc2992_channel	chan,
		enum ltc2992_fault_status *	fault
	)

Get fault status.

Parameters

dev	- The device structure.
sense	- Sense channel. Example: LTC2992_SENSE1 LTC2992_SENSE2
chan	- Measured data channel. Example: LTC2992_VOLTAGE LTC2992_VSHUNT LTC2992_CURRENT LTC2992_POWER LTC2992_ISUM LTC2992_PSUM
fault	- Alert value to set. Example: LTC2992_FAULT_NONE - No fault event LTC2992_FAULT_UNDERVALUE - Undervalue fault occurred LTC2992_FAULT_OVERVALUE - Overvalue fault occurred

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

◆ ltc2992_get_gpio_data()

int ltc2992_get_gpio_data	(	struct ltc2992_dev *	dev,
		enum ltc2992_gpio	gpio,
		uint32_t *	gpio_data
	)

Get data from a GPIO data converter.

Parameters

dev	- The device structure.
gpio	- GPIO to get. Example: LTC2992_GPIO1 LTC2992_GPIO2 LTC2992_GPIO3 LTC2992_GPIO4
gpio_data	- Data read

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

◆ ltc2992_get_gpio_fault()

int ltc2992_get_gpio_fault	(	struct ltc2992_dev *	dev,
		enum ltc2992_gpio	gpio,
		enum ltc2992_fault_status *	fault
	)

Get GPIO fault status.

Parameters

dev	- The device structure.
gpio	- GPIO to read fault status. Example: LTC2992_GPIO1 LTC2992_GPIO2 LTC2992_GPIO3 LTC2992_GPIO4
fault	- Alert value to set. Example: LTC2992_FAULT_NONE - No fault event LTC2992_FAULT_UNDERVALUE - Undervalue fault occurred LTC2992_FAULT_OVERVALUE - Overvalue fault occurred

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

◆ ltc2992_get_gpio_max_data()

int ltc2992_get_gpio_max_data	(	struct ltc2992_dev *	dev,
		enum ltc2992_gpio	gpio,
		uint32_t *	gpio_data
	)

Get maximum data from a GPIO data converter.

Parameters

dev	- The device structure.
gpio	- GPIO to read. Example: LTC2992_GPIO1 LTC2992_GPIO2 LTC2992_GPIO3 LTC2992_GPIO4
gpio_data	- Data read

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

◆ ltc2992_get_gpio_min_data()

int ltc2992_get_gpio_min_data	(	struct ltc2992_dev *	dev,
		enum ltc2992_gpio	gpio,
		uint32_t *	gpio_data
	)

Get minimum data from a GPIO data converter.

Parameters

dev	- The device structure.
gpio	- GPIO to get. Example: LTC2992_GPIO1 LTC2992_GPIO2 LTC2992_GPIO3 LTC2992_GPIO4
gpio_data	- Data read

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

◆ ltc2992_get_gpio_state()

int ltc2992_get_gpio_state	(	struct ltc2992_dev *	dev,
		enum ltc2992_gpio	gpio,
		uint8_t *	state
	)

Get GPIO state.

Parameters

dev	- The device structure.
gpio	- GPIO to read state. Example: LTC2992_GPIO1 LTC2992_GPIO2 LTC2992_GPIO3 LTC2992_GPIO4
state	- GPIO state Example: 0 - GPIO is logic low 1 - GPIO is logic high

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

◆ ltc2992_get_max_data()

int ltc2992_get_max_data	(	struct ltc2992_dev *	dev,
		enum ltc2992_sense	sense,
		enum ltc2992_channel	chan,
		uint32_t *	data
	)

Read maximum sense data at a SENSE channel.

Parameters

dev	- The device structure.
sense	- Sense channel. Example: LTC2992_SENSE1 - Read in SENSE1 channel. LTC2992_SENSE2 - Read in SENSE2 channel.
chan	- Measured data channel. Example: LTC2992_VOLTAGE - Read bus voltage in millivolts. LTC2992_VSHUNT - Read shunt voltage in microvolts. LTC2992_CURRENT - Read current in milliamperes. LTC2992_POWER - Read power in milliwatts. LTC2992_ISUM - Read ISUM in microvolts. LTC2992_PSUM - Read PSUM in milliwatts.
data	- Read max data.

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

◆ ltc2992_get_min_data()

int ltc2992_get_min_data	(	struct ltc2992_dev *	dev,
		enum ltc2992_sense	sense,
		enum ltc2992_channel	chan,
		uint32_t *	data
	)

Read minimum sense data at a SENSE channel.

Parameters

dev	- The device structure.
sense	- Sense channel. Example: LTC2992_SENSE1 - Read in SENSE1 channel. LTC2992_SENSE2 - Read in SENSE2 channel.
chan	- Measured data channel. Example: LTC2992_VOLTAGE - Read bus voltage in millivolts. LTC2992_VSHUNT - Read shunt voltage in microvolts. LTC2992_CURRENT - Read current in milliamperes. LTC2992_POWER - Read power in milliwatts. LTC2992_ISUM - Read ISUM in microvolts. LTC2992_PSUM - Read PSUM in milliwatts.
data	- Read min data.

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

◆ ltc2992_get_power()

int ltc2992_get_power	(	struct ltc2992_dev *	dev,
		enum ltc2992_sense	sense,
		uint32_t *	power_data
	)

Read bus power output in a sense channel.

Parameters

dev	- The device structure.
sense	- Sense channel. Example: LTC2992_SENSE1 - Read in SENSE1 channel. LTC2992_SENSE2 - Read in SENSE2 channel.
power_data	- Power read in milliwatts.

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

Here is the caller graph for this function:

◆ ltc2992_get_sense_data()

int ltc2992_get_sense_data	(	struct ltc2992_dev *	dev,
		enum ltc2992_sense	sense,
		enum ltc2992_channel	chan,
		uint32_t *	data
	)

Read sense data at a SENSE channel.

Parameters

dev	- The device structure.
sense	- Sense channel. Example: LTC2992_SENSE1 - Read in SENSE1 channel. LTC2992_SENSE2 - Read in SENSE2 channel.
chan	- Measured data channel. Example: LTC2992_VOLTAGE - Read bus voltage in millivolts. LTC2992_VSHUNT - Read shunt voltage in microvolts. LTC2992_CURRENT - Read current in milliamperes. LTC2992_POWER - Read power in milliwatts. LTC2992_ISUM - Read ISUM in microvolts. LTC2992_PSUM - Read PSUM in milliwatts.
data	- Read data.

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

◆ ltc2992_get_sum()

int ltc2992_get_sum	(	struct ltc2992_dev *	dev,
		enum ltc2992_channel	chan,
		uint32_t *	sum_data
	)

Read the shunt voltage sum or power sum of both sense channels.

Parameters

dev	- The device structure.
chan	- Measured channel. Example: LTC2992_VSHUNT - Read ISUM. LTC2992_POWER - Read PSUM.
sum_data	- Sum read in microvolts or milliwatts.

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

Here is the caller graph for this function:

◆ ltc2992_get_voltage()

int ltc2992_get_voltage	(	struct ltc2992_dev *	dev,
		enum ltc2992_sense	sense,
		uint32_t *	voltage_data
	)

Read bus voltage in a sense channel.

Parameters

dev	- The device structure.
sense	- Sense channel. Example: LTC2992_SENSE1 - Read in SENSE1 channel. LTC2992_SENSE2 - Read in SENSE2 channel.
voltage_data	- Voltage read in millivolts.

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

Here is the caller graph for this function:

◆ ltc2992_get_vshunt()

int ltc2992_get_vshunt	(	struct ltc2992_dev *	dev,
		enum ltc2992_sense	sense,
		uint32_t *	vshunt_data
	)

Read shunt voltage in a sense channel.

Parameters

dev	- The device structure.
sense	- Sense channel. Example: LTC2992_SENSE1 - Read in SENSE1 channel. LTC2992_SENSE2 - Read in SENSE2 channel.
vshunt_data	- Voltage read in microvolts.

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

Here is the caller graph for this function:

◆ ltc2992_init()

int ltc2992_init	(	struct ltc2992_dev **	device,
		struct ltc2992_init_param *	init_param
	)

Initialize communication peripheral for the device.

Parameters

device	- The device structure.
init_param	- Initial parameters.

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

◆ ltc2992_read_reg()

int ltc2992_read_reg	(	struct ltc2992_dev *	dev,
		uint8_t	addr,
		uint32_t *	data,
		uint8_t	num_bytes
	)

Read raw data from device register.

Parameters

dev	- The device structure.
addr	- The register address.
data	- Register data pointer.
num_bytes	- Number of bytes to read.

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

Here is the caller graph for this function:

◆ ltc2992_remove()

int ltc2992_remove ( struct ltc2992_dev * dev )

Free resources allocated to the device.

Parameters

dev	- The device structure.

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

◆ ltc2992_reset_alert_pin()

int ltc2992_reset_alert_pin ( struct ltc2992_dev * dev )

Reset alert pin (GPI04) status.

Parameters

dev	- The device structure.

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

◆ ltc2992_set_alert()

int ltc2992_set_alert	(	struct ltc2992_dev *	dev,
		enum ltc2992_sense	sense,
		enum ltc2992_channel	chan,
		enum ltc2992_alert_value	alert
	)

Enable alert.

Parameters

dev	- The device structure.
sense	- Sense channel. Example: LTC2992_SENSE1 LTC2992_SENSE2
chan	- Measured data channel. Example: LTC2992_VOLTAGE LTC2992_VSHUNT LTC2992_CURRENT LTC2992_POWER LTC2992_ISUM LTC2992_PSUM
alert	- Alert value to set. Example: LTC2992_ALERT_DISABLE_ALL - Disable alert LTC2992_ALERT_ENABLE_UV - Enable undervalue alert LTC2992_ALERT_ENABLE_OV - Enable overvalue alert LTC2992_ALERT_ENABLE_ALL - Enable undervalue and overvalue alert

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

◆ ltc2992_set_gpio_alert()

int ltc2992_set_gpio_alert	(	struct ltc2992_dev *	dev,
		enum ltc2992_gpio	gpio,
		enum ltc2992_alert_value	alert_value
	)

Enable alert when GPIO level reaches beyond threshold limit.

Parameters

dev	- The device structure.
gpio	- GPIO to enable alert. Example: LTC2992_GPIO1 LTC2992_GPIO2 LTC2992_GPIO3 LTC2992_GPIO4
alert_value	- Alert value to set. Example: LTC2992_ALERT_DISABLE_ALL - Disable alert LTC2992_ALERT_ENABLE_UV - Enable undervalue alert LTC2992_ALERT_ENABLE_OV - Enable overvalue alert LTC2992_ALERT_ENABLE_ALL - Enable undervalue and overvalue alert

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

◆ ltc2992_set_gpio_max_thresh()

int ltc2992_set_gpio_max_thresh	(	struct ltc2992_dev *	dev,
		enum ltc2992_gpio	gpio,
		uint32_t	thresh_value
	)

Set upper threshold level in a GPIO.

Parameters

dev	- The device structure.
gpio	- GPIO to set. Example: LTC2992_GPIO1 LTC2992_GPIO2 LTC2992_GPIO3 LTC2992_GPIO4
thresh_value	- Set threshold.

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

◆ ltc2992_set_gpio_min_thresh()

int ltc2992_set_gpio_min_thresh	(	struct ltc2992_dev *	dev,
		enum ltc2992_gpio	gpio,
		uint32_t	thresh_value
	)

Set lower threshold level in a GPIO.

Parameters

dev	- The device structure.
gpio	- GPIO to set. Example: LTC2992_GPIO1 LTC2992_GPIO2 LTC2992_GPIO3 LTC2992_GPIO4
thresh_value	- Set threshold.

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

◆ ltc2992_set_gpio_output()

int ltc2992_set_gpio_output	(	struct ltc2992_dev *	dev,
		enum ltc2992_gpio	gpio,
		enum ltc2992_gpio_output	output
	)

Set GPIO output.

Parameters

dev	- The device structure.
gpio	- GPIO to set. Example: LTC2992_GPIO1 LTC2992_GPIO2 LTC2992_GPIO3 LTC2992_GPIO4
output	- GPIO output to set Example: LTC2992_GPIO_OUTPUT_HI_Z - Output high impedance. LTC2992_GPIO_OUTPUT_PULL_LOW - Pull output low.

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

◆ ltc2992_set_max_thresh()

int ltc2992_set_max_thresh	(	struct ltc2992_dev *	dev,
		enum ltc2992_sense	sense,
		enum ltc2992_channel	chan,
		uint32_t	thresh_value
	)

Set upper thresh level for alert at a SENSE channel.

Parameters

dev	- The device structure.
sense	- Sense channel. Example: LTC2992_SENSE1 LTC2992_SENSE2
chan	- Measured data channel. Example: LTC2992_VOLTAGE - Bus voltage thresh in millivolts. LTC2992_VSHUNT - Shunt voltage thresh in microvolts. LTC2992_CURRENT - Current thresh in milliamperes. LTC2992_POWER - Power thresh in milliwatts. LTC2992_ISUM - ISUM thresh in microvolts. LTC2992_PSUM - PSUM thresh in milliwatts.
thresh_value	- Thresh level to set.

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

◆ ltc2992_set_min_thresh()

int ltc2992_set_min_thresh	(	struct ltc2992_dev *	dev,
		enum ltc2992_sense	sense,
		enum ltc2992_channel	chan,
		uint32_t	thresh_value
	)

Set lower thresh level for alert at a SENSE channel.

Parameters

dev	- The device structure.
sense	- Sense channel. Example: LTC2992_SENSE1 LTC2992_SENSE2
chan	- Measured data channel. Example: LTC2992_VOLTAGE - Bus voltage thresh in millivolts. LTC2992_VSHUNT - Shunt voltage thresh in microvolts. LTC2992_CURRENT - Current thresh in milliamperes. LTC2992_POWER - Power thresh in milliwatts. LTC2992_ISUM - ISUM thresh in microvolts. LTC2992_PSUM - PSUM thresh in milliwatts.
thresh_value	- Thresh level to set.

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

◆ ltc2992_update_reg()

int ltc2992_update_reg	(	struct ltc2992_dev *	dev,
		uint8_t	addr,
		uint8_t	mask,
		uint8_t	val
	)

Update register value in the device.

Parameters

dev	- The device structure.
addr	- The register address.
mask	- Mask of the bitfield to be updated.
val	- Value to write.

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

Here is the caller graph for this function:

◆ ltc2992_write_reg()

int ltc2992_write_reg	(	struct ltc2992_dev *	dev,
		uint8_t	addr,
		uint32_t	value,
		uint8_t	num_bytes
	)

Write raw data to device register.

Parameters

dev	- The device structure.
addr	- The register address.
value	- Value to write.
num_bytes	- Number of bytes to write.

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

Here is the caller graph for this function:

Classes

Macros

Enumerations

Functions

Macro Definition Documentation

◆ LTC2992_12B_POWER_VAL_MSK

◆ LTC2992_12B_SENSE_VAL_MSK

◆ LTC2992_8B_POWER_VAL_MSK

◆ LTC2992_8B_SENSE_VAL_MSK

◆ LTC2992_ALERT_CLR_BIT

◆ LTC2992_DSENSE_ALERT_MSK

◆ LTC2992_DSENSE_FAULT_MSK

◆ LTC2992_G1_CTRL_BIT

◆ LTC2992_G1_FAULT_ALERT_MSK

◆ LTC2992_G2_CTRL_BIT

◆ LTC2992_G2_FAULT_ALERT_MSK

◆ LTC2992_G3_CTRL_BIT

◆ LTC2992_G3_FAULT_ALERT_MSK

◆ LTC2992_G4_ALERT_PIN_BIT

◆ LTC2992_G4_CTRL_BIT

◆ LTC2992_G4_FAULT_ALERT_MSK

◆ LTC2992_ISUM_ALERT_MSK

◆ LTC2992_ISUM_FAULT_MSK

◆ LTC2992_MEASURE_MODE_MSK

◆ LTC2992_MFR_ID_VALUE

◆ LTC2992_OFFSET_CAL_MSK

◆ LTC2992_PEAK_RST_BIT

◆ LTC2992_POWER_ALERT_MSK

◆ LTC2992_POWER_FAULT_MSK

◆ LTC2992_PSUM_ALERT_MSK

◆ LTC2992_PSUM_FAULT_MSK

◆ LTC2992_READ_CTRL_BIT

◆ LTC2992_REG_ALERT1

◆ LTC2992_REG_ALERT2

◆ LTC2992_REG_ALERT3

◆ LTC2992_REG_CTRLA

◆ LTC2992_REG_CTRLB

◆ LTC2992_REG_DSENSE

◆ LTC2992_REG_DSENSE1

◆ LTC2992_REG_DSENSE1_MAX

◆ LTC2992_REG_DSENSE1_MAX_THRESH

◆ LTC2992_REG_DSENSE1_MIN

◆ LTC2992_REG_DSENSE1_MIN_THRESH

◆ LTC2992_REG_DSENSE_FAULT

◆ LTC2992_REG_DSENSE_MAX

◆ LTC2992_REG_DSENSE_MAX_THRESH

◆ LTC2992_REG_DSENSE_MIN

◆ LTC2992_REG_DSENSE_MIN_THRESH

◆ LTC2992_REG_FAULT1

◆ LTC2992_REG_FAULT2

◆ LTC2992_REG_FAULT3

◆ LTC2992_REG_G1

◆ LTC2992_REG_G1_MAX

◆ LTC2992_REG_G1_MAX_THRESH

◆ LTC2992_REG_G1_MIN

◆ LTC2992_REG_G1_MIN_THRESH

◆ LTC2992_REG_G2

◆ LTC2992_REG_G2_MAX

◆ LTC2992_REG_G2_MAX_THRESH

◆ LTC2992_REG_G2_MIN

◆ LTC2992_REG_G2_MIN_THRESH

◆ LTC2992_REG_G3

◆ LTC2992_REG_G3_MAX

◆ LTC2992_REG_G3_MAX_THRESH

◆ LTC2992_REG_G3_MIN

◆ LTC2992_REG_G3_MIN_THRESH

◆ LTC2992_REG_G4

◆ LTC2992_REG_G4_MAX

◆ LTC2992_REG_G4_MAX_THRESH

◆ LTC2992_REG_G4_MIN

◆ LTC2992_REG_G4_MIN_THRESH

◆ LTC2992_REG_GPIO4_CTRL

◆ LTC2992_REG_GPIO_IO_CTRL

◆ LTC2992_REG_GPIO_STATUS

◆ LTC2992_REG_ISUM

◆ LTC2992_REG_ISUM_MAX

◆ LTC2992_REG_ISUM_MAX_THRESH

◆ LTC2992_REG_ISUM_MIN

◆ LTC2992_REG_ISUM_MIN_THRESH

◆ LTC2992_REG_MFR_SPECIAL_ID