adt7xxx_support.h File Reference

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Macros
#define	ADT7420_LSB_MASK   0x00FF
#define	ADT7420_MSB_MASK   0xFF00
#define	ADT7420_LSB_OFFSET   0
#define	ADT7420_MSB_OFFSET   8
#define	ADT7420_CONFIG_CT_POL   NO_OS_BIT(2)
#define	ADT7420_CONFIG_FAULT_QUEUE(x)   ((x) & 0x3)
#define	ADT7420_CONFIG_INT_POL   NO_OS_BIT(3)
#define	ADT7420_CONFIG_INT_CT_MODE   NO_OS_BIT(4)
#define	ADT7420_MASK_SET_PT_REGISTER   0x00
#define	ADT7420_FAULT_QUEUE_1_FAULT   0
#define	ADT7420_FAULT_QUEUE_2_FAULTS   1
#define	ADT7420_FAULT_QUEUE_3_FAULTS   2
#define	ADT7420_FAULT_QUEUE_4_FAULTS   3
#define	ADT7320_DEFAULT_ID   0xC3
#define	ADT7420_DEFAULT_ID   0xCB

Enumerations
enum	registers_e {   REG_TEMP ,   REG_STATUS ,   REG_CONFIG ,   REG_T_CRIT ,   REG_HIST ,   REG_T_HIGH ,   REG_T_LOW ,   REG_ID ,   REG_RESET }

Functions
int32_t	adt7420_set_fault_queue (struct adt7420_dev *dev, uint8_t mode)
	Sets the Fault Queue option for ADT7420/ADT7320. More...
int32_t	adt7420_set_ct_int_mode (struct adt7420_dev *dev, uint8_t setting)
	Sets comparator/interrupt (CT/INT) mode for ADT7420/ADT7320. More...
int32_t	adt7420_set_ct_int_polarity (struct adt7420_dev *dev, uint8_t polarity)
	Sets output polarity for the pins CT/INT (Critical Temp - Over/Under Temp). More...
int32_t	adt7420_wr_setpoint_reg (struct adt7420_dev *device, uint16_t register_value, uint16_t data)
	Write to a setpoint register. More...
uint16_t	configure_write_type_registers (struct adt7420_dev *dev, uint16_t register_address)
	Configure write typev register based on communication interface. More...
int32_t	adt7420_get_register_address_and_value (struct adt7420_dev *dev, uint16_t register_address, uint16_t *reg_val)
	Reads the value of a register SPI/I2C. More...

Macro Definition Documentation

ADT7320_DEFAULT_ID

#define ADT7320_DEFAULT_ID   0xC3

ADT7420_CONFIG_CT_POL

#define ADT7420_CONFIG_CT_POL   NO_OS_BIT(2)

ADT7420_CONFIG_FAULT_QUEUE

#define ADT7420_CONFIG_FAULT_QUEUE

(

x

)

((x) & 0x3)

ADT7420_CONFIG_INT_CT_MODE

#define ADT7420_CONFIG_INT_CT_MODE   NO_OS_BIT(4)

ADT7420_CONFIG_INT_POL

#define ADT7420_CONFIG_INT_POL   NO_OS_BIT(3)

ADT7420_DEFAULT_ID

#define ADT7420_DEFAULT_ID   0xCB

ADT7420_FAULT_QUEUE_1_FAULT

#define ADT7420_FAULT_QUEUE_1_FAULT   0

ADT7420_FAULT_QUEUE_2_FAULTS

#define ADT7420_FAULT_QUEUE_2_FAULTS   1

ADT7420_FAULT_QUEUE_3_FAULTS

#define ADT7420_FAULT_QUEUE_3_FAULTS   2

ADT7420_FAULT_QUEUE_4_FAULTS

#define ADT7420_FAULT_QUEUE_4_FAULTS   3

ADT7420_LSB_MASK

#define ADT7420_LSB_MASK   0x00FF

ADT7420_LSB_OFFSET

#define ADT7420_LSB_OFFSET   0

ADT7420_MASK_SET_PT_REGISTER

#define ADT7420_MASK_SET_PT_REGISTER   0x00

ADT7420_MSB_MASK

#define ADT7420_MSB_MASK   0xFF00

ADT7420_MSB_OFFSET

#define ADT7420_MSB_OFFSET   8

Enumeration Type Documentation

registers_e

enum registers_e

Enumerator
REG_TEMP
REG_STATUS
REG_CONFIG
REG_T_CRIT
REG_HIST
REG_T_HIGH
REG_T_LOW
REG_ID
REG_RESET

Function Documentation

adt7420_get_register_address_and_value()

int32_t adt7420_get_register_address_and_value	(	struct adt7420_dev *	dev,
		uint16_t	register_address,
		uint16_t *	reg_val
	)

Reads the value of a register SPI/I2C.

Get the register address based on the register type enum- registers_e

Parameters

dev	- The device structure.
register_address	- Address of the register.
reg_val	- Value of the concerned register

Returns

0 in case of success, negative error code otherwise

adt7420_set_ct_int_mode()

int32_t adt7420_set_ct_int_mode	(	struct adt7420_dev *	dev,
		uint8_t	setting
	)

Sets comparator/interrupt (CT/INT) mode for ADT7420/ADT7320.

Sets comparator/interrupt (CT/INT) mode for ADT7420/ADT7320.

Parameters

dev	- The device structure.
setting	- Mode selection. Example: 0 - Interrupt (default). 1 - Comparator.

Returns

0 in case of success, negative error code otherwise.

adt7420_set_ct_int_polarity()

int32_t adt7420_set_ct_int_polarity	(	struct adt7420_dev *	dev,
		uint8_t	polarity
	)

Sets output polarity for the pins CT/INT (Critical Temp - Over/Under Temp).

Sets output polarity for the pins CT/INT (Critical Temp - Over/Under Temp).

Parameters

dev	- The device structure.
polarity	- Polarity selection. Example: 0 - Active Low (default). 1 - Active High.

Returns

0 in case of success, negative error code otherwise.

adt7420_set_fault_queue()

int32_t adt7420_set_fault_queue	(	struct adt7420_dev *	dev,
		uint8_t	mode
	)

Sets the Fault Queue option for ADT7420/ADT7320.

Sets the Fault Queue option for ADT7420/ADT7320.

Parameters

dev	- The device structure.
mode	- Fault Queue selection. Example: 1 - 1 fault (default). 2 - 2 faults. 3 - 3 faults. 4 - 4 faults.

Returns

0 in case of success, negative error code otherwise.

adt7420_wr_setpoint_reg()

int32_t adt7420_wr_setpoint_reg	(	struct adt7420_dev *	dev,
		uint16_t	register_value,
		uint16_t	data
	)

Write to a setpoint register.

Writes data to temperature registers

Parameters

dev	- The device structure.
register_value	- Command control bits.
data	- Data to be written in input register.

Returns

0 in case of success, negative error code otherwise

configure_write_type_registers()

uint16_t configure_write_type_registers	(	struct adt7420_dev *	dev,
		uint16_t	register_address
	)

Configure write typev register based on communication interface.

Get the register address of write type registers

Parameters

dev	- The device structure.
register_address	- Register type.

Returns

register_address - Register Address.

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